docs: Bump version to 1.4.6.

Adding a line-end makes the determination of skip_native fail as it compares
the output against b'CRASH' while it is in fact b'CRASH\n'

.travis.yml

@@ -16,7 +16,6 @@ before_script:
 script:
   - make -C minimal test
   - make -C unix CC=gcc-4.7
-  - make -C unix-cpy CC=gcc-4.7
   - make -C bare-arm
   - make -C qemu-arm test
   - make -C stmhal

ACKNOWLEDGEMENTS

@@ -261,6 +261,7 @@ today.  The names appear in order of pledging.
   503 skakz
   504 Chad Cooper
   505 Makhan Virdi, mlvirdi.com, InfinityXLabs.com, USA
+  506 Glenn Ruben Bakke, Norway
   507 Alasdair Allan
   509 dlbrandon
   511 Dr J Garcia, Sweden

CODECONVENTIONS.md

@@ -33,16 +33,17 @@ Braces:
   closing brace.
 
 Header files:
-- Try to stick to the Plan 9 header style, where header files do not
-  include other header files.
-- Don't protect a header file from multiple inclusion with #if directives.
+- Header files should be protected from multiple inclusion with #if
+  directives. See an existing header for naming convention.
 
-Type names and declarations:
-- When defining a type, put '_t' after it.
+Names:
+- Use underscore_case, not camelCase for all names.
+- Use CAPS_WITH_UNDERSCORE for enums and macros.
+- When defining a type use underscore_case and put '_t' after it.
 
-Integer types: Micro Python runs on 32 and 64 bit machines (and one day
-maybe 16 bit), so it's important to use the correctly-sized (and signed)
-integer types.  The general guidelines are:
+Integer types: Micro Python runs on 16, 32, and 64 bit machines, so it's
+important to use the correctly-sized (and signed) integer types.  The
+general guidelines are:
 - For most cases use mp_int_t for signed and mp_uint_t for unsigned
   integer values.  These are guaranteed to be machine-word sized and
   therefore big enough to hold the value from a Micro Python small-int
@@ -51,19 +52,31 @@ integer types.  The general guidelines are:
 - You can use int/uint, but remember that they may be 16-bits wide.
 - If in doubt, use mp_int_t/mp_uint_t.
 
+Comments:
+- Be concise and only write comments for things that are not obvious.
+- Use `// ` prefix, NOT `/* ... */`. No extra fluff.
+
+Memory allocation:
+- Use m_new, m_renew, m_del (and friends) to allocate and free heap memory.
+  These macros are defined in py/misc.h.
+
 Examples
 --------
 
-Braces and spaces:
+Braces, spaces, names and comments:
 
-    int foo(int x, int y) {
-        if (x < y) {
-            foo(y, x);
+    #define TO_ADD (123)
+
+    // This function will always recurse indefinitely and is only used to show
+    // coding style
+    int foo_function(int x, int some_value) {
+        if (x < some_value) {
+            foo(some_value, x);
         } else {
-            foo(x + 1, y - 1);
+            foo(x + TO_ADD, some_value - 1);
         }
 
-        for (int i = 0; i < x; i++) {
+        for (int my_counter = 0; my_counter < x; my_counter++) {
         }
     }
 

README.md

@@ -46,7 +46,7 @@ Additional components:
   (preliminary but functional).
 - pic16bit/ -- a version of Micro Python for 16-bit PIC microcontrollers.
 - cc3200/ -- a version of Micro Python that runs on the CC3200 from TI.
-- unix-cpy/ -- a version of Micro Python that outputs bytecode (for testing).
+- esp8266/ -- an experimental port for ESP8266 WiFi modules.
 - tests/ -- test framework and test scripts.
 - tools/ -- various tools, including the pyboard.py module.
 - examples/ -- a few example Python scripts.
@@ -64,7 +64,7 @@ as ARM and MIPS. Making full-featured port to another architecture requires
 writing some assembly code for the exception handling and garbage collection.
 Alternatively, fallback implementation based on setjmp/longjmp can be used.
 
-To build:
+To build (*):
 
     $ cd unix
     $ make
@@ -74,14 +74,28 @@ Then to give it a try:
     $ ./micropython
     >>> list(5 * x + y for x in range(10) for y in [4, 2, 1])
 
+Learn about command-line options (in particular, how to increase heap size
+which may be needed for larger applications):
+
+    $ ./micropython --help
+
 Run complete testsuite:
 
     $ make test
 
-Debian/Ubuntu/Mint derivative Linux distros will require build-essentials and
-libreadline-dev packages installed. To build FFI (Foreign Function Interface)
-module, libffi-dev and pkg-config packages are required. If you have problems
-with some dependencies, they can be disabled in unix/mpconfigport.mk .
+Unix version comes with a builtin package manager called upip, e.g.:
+
+    $ ./micropython -m upip install micropython-pystone
+    $ ./micropython -m pystone
+
+Browse available modules on
+[PyPI](https://pypi.python.org/pypi?%3Aaction=search&term=micropython).
+Standard library modules come from
+[micropython-lib](https://github.com/micropython/micropython-lib) project.
+
+(*) Debian/Ubuntu/Mint derivative Linux distros will require build-essentials,
+libffi-dev and pkg-config packages installed. If you have problems with some
+dependencies, they can be disabled in unix/mpconfigport.mk .
 
 The STM version
 ---------------
@@ -121,6 +135,8 @@ preferably in a virtualenv:
 
 In `micropython/docs`, build the docs:
 
-    make html
+    make MICROPY_PORT=<port_name> BUILDDIR=<port_name>/build html
 
-You'll find the index page at `micropython/docs/build/html/index.html`.
+Where `<port_name>` can be `unix`, `pyboard`, `wipy` or `esp8266`.
+
+You'll find the index page at `micropython/docs/<port_name>/build/html/index.html`.

bare-arm/main.c

@@ -7,7 +7,7 @@
 #include "py/runtime.h"
 #include "py/repl.h"
 
-void do_str(const char *src) {
+void do_str(const char *src, mp_parse_input_kind_t input_kind) {
     mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
     if (lex == NULL) {
         return;
@@ -16,7 +16,7 @@ void do_str(const char *src) {
     nlr_buf_t nlr;
     if (nlr_push(&nlr) == 0) {
         qstr source_name = lex->source_name;
-        mp_parse_node_t pn = mp_parse(lex, MP_PARSE_SINGLE_INPUT);
+        mp_parse_node_t pn = mp_parse(lex, input_kind);
         mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
         mp_call_function_0(module_fun);
         nlr_pop();
@@ -28,7 +28,8 @@ void do_str(const char *src) {
 
 int main(int argc, char **argv) {
     mp_init();
-    do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\n')");
+    do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\\n')", MP_PARSE_SINGLE_INPUT);
+    do_str("for i in range(10):\n  print(i)", MP_PARSE_FILE_INPUT);
     mp_deinit();
     return 0;
 }

bare-arm/mpconfigport.h

@@ -2,6 +2,7 @@
 
 // options to control how Micro Python is built
 
+#define MICROPY_QSTR_BYTES_IN_HASH  (1)
 #define MICROPY_ALLOC_PATH_MAX      (512)
 #define MICROPY_EMIT_X64            (0)
 #define MICROPY_EMIT_THUMB          (0)
@@ -18,9 +19,12 @@
 #define MICROPY_ENABLE_SOURCE_LINE  (0)
 #define MICROPY_ENABLE_DOC_STRING   (0)
 #define MICROPY_ERROR_REPORTING     (MICROPY_ERROR_REPORTING_TERSE)
+#define MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG (0)
 #define MICROPY_PY_BUILTINS_BYTEARRAY (0)
 #define MICROPY_PY_BUILTINS_MEMORYVIEW (0)
+#define MICROPY_PY_BUILTINS_ENUMERATE (0)
 #define MICROPY_PY_BUILTINS_FROZENSET (0)
+#define MICROPY_PY_BUILTINS_REVERSED (0)
 #define MICROPY_PY_BUILTINS_SET     (0)
 #define MICROPY_PY_BUILTINS_SLICE   (0)
 #define MICROPY_PY_BUILTINS_PROPERTY (0)

cc3200/Makefile

@@ -1,10 +1,11 @@
 # Select the board to build for: if not given on the command line,
-# then default to LAUNCHXL
-BOARD ?= LAUNCHXL
+# then default to WIPY
+BOARD ?= WIPY
 ifeq ($(wildcard boards/$(BOARD)/.),)
 $(error Invalid BOARD specified)
 endif
 
+# Make 'release' the default build type
 BTYPE ?= release
 
 # If the build directory is not given, make it reflect the board name.
@@ -20,7 +21,7 @@ CFLAGS = -Wall -Wpointer-arith -Werror -ansi -std=gnu99 -nostdlib $(CFLAGS_CORTE
 CFLAGS += -g -ffunction-sections -fdata-sections -fno-common -fsigned-char -mno-unaligned-access
 CFLAGS += -Iboards/$(BOARD)
 
-LDFLAGS = -Wl,-nostdlib -Wl,--gc-sections -Wl,-Map=$@.map --specs=nano.specs
+LDFLAGS = -Wl,-nostdlib -Wl,--gc-sections -Wl,-Map=$@.map
 
 ifeq ($(BTARGET), application)
 # qstr definitions (must come before including py.mk)

cc3200/README.md

@@ -1,6 +1,6 @@
 # Build Instructions for the CC3200
 
-Currently the CC3200 port of Micro Python builds under Linux and OSX and not under Windows.
+Currently the CC3200 port of Micro Python builds under Linux and OSX **but not under Windows**.
 
 The tool chain required for the build can be found at <https://launchpad.net/gcc-arm-embedded>.
 
@@ -13,29 +13,42 @@ In order to debug the port specific code, optimizations need to be disabled on t
 port file (check the Makefile for specific details). You can use CCS from TI.
 Use the CC3200.ccxml file supplied with this distribution for the debuuger configuration. 
 ```bash
-make BTARGET=application BTYPE=debug
+make BTARGET=application BTYPE=debug BOARD=LAUNCHXL
 ```
 ## To build an image suitable to be flashed to the device:
 ```bash
-make BTARGET=application BTYPE=release
+make BTARGET=application BTYPE=release BOARD=LAUNCHXL
 ```
 ## Building the bootloader
 ```bash
-make BTARGET=bootloader BTYPE=release
+make BTARGET=bootloader BTYPE=release BOARD=LAUNCHXL
 ```
 
+## Regarding old revisions of the CC3200-LAUNCHXL
+First silicon (pre-release) revisions of the CC3200 had issues with the ram blocks, and Micro Python cannot run
+there. Make sure to use a **v4.1 (or higer) LAUNCHXL board** when trying this port, otherwise it won't work.
+
 ## Flashing the CC3200
 - Make sure that you have built both the *bootloader* and the *application* in **release** mode.
 - Make sure the SOP2 jumper is in position.
 - Open CCS_Uniflash and connect to the board (by default on port 22). 
 - Format the serial flash (select 1MB size in case of the CC3200-LAUNCHXL, 2MB in case of the WiPy, leave the rest unchecked).
-- Mark the following files for erasing: `/cert/ca.pem`, `/cert/client.pm`, `/cert/private.key` and `/tmp/pac.bin`.
+- Mark the following files for erasing: `/cert/ca.pem`, `/cert/client.pem`, `/cert/private.key` and `/tmp/pac.bin`.
 - Add a new file with the name of /sys/mcuimg.bin, and select the URL to point to cc3200\bootmgr\build\<BOARD_NAME>\bootloader.bin.
 - Add another file with the name of /sys/factimg.bin, and select the URL to point to cc3200\build\<BOARD_NAME>\mcuimg.bin.
 - Click "Program" to apply all changes.
 - Flash the latest service pack (servicepack_1.0.0.10.0.bin) using the "Service Pack Update" button.
 - Close CCS_Uniflash, remove the SOP2 jumper and reset the board.
 
+## Updating the board to with new software version
+- Make sure the board is running and connected to the same network as the computer.
+
+```bash
+make BTARGET=application BTYPE=release BOARD=LAUNCHXL WIPY_IP=192.168.1.1 WIPY_USER=micro WIPY_PWD=python deploy
+```
+
+If `WIPY_IP`, `WIPY_USER` or `WIPY_PWD` are omitted the default values (the ones shown above) will be used.
+
 ## Playing with MicroPython and the CC3200:
 
 Once the software is running, you have two options to access the MicroPython REPL:

cc3200/application.lds

@@ -24,9 +24,8 @@
  * THE SOFTWARE.
  */
 
-__stack_size__    = 2K;       /* interrupts are handled within this stack */
+__stack_size__    = 3K;       /* interrupts are handled within this stack */
 __min_heap_size__ = 8K;
-__rtos_heap_size  = 16K;
 
 MEMORY
 {

cc3200/application.mk

@@ -75,8 +75,8 @@ APP_HAL_SRC_C = $(addprefix hal/,\
 	)
 
 APP_MISC_SRC_C = $(addprefix misc/,\
+	antenna.c \
 	FreeRTOSHooks.c \
-	pin_named_pins.c \
 	help.c \
 	mpcallback.c \
 	mperror.c \
@@ -86,9 +86,12 @@ APP_MISC_SRC_C = $(addprefix misc/,\
 
 APP_MODS_SRC_C = $(addprefix mods/,\
 	modnetwork.c \
+	moduhashlib.c \
+	modubinascii.c \
 	modpyb.c \
 	moduos.c \
 	modusocket.c \
+	modussl.c \
 	modutime.c \
 	modwlan.c \
 	pybadc.c \
@@ -98,6 +101,7 @@ APP_MODS_SRC_C = $(addprefix mods/,\
 	pybsd.c \
 	pybsleep.c \
 	pybspi.c \
+	pybtimer.c \
 	pybuart.c \
 	pybwdt.c \
 	)
@@ -123,6 +127,7 @@ APP_TELNET_SRC_C = $(addprefix telnet/,\
 	)
 	
 APP_UTIL_SRC_C = $(addprefix util/,\
+	cryptohash.c \
 	fifo.c \
 	gccollect.c \
 	random.c \
@@ -192,6 +197,7 @@ $(BUILD)/FreeRTOS/Source/%.o: CFLAGS += -Os
 $(BUILD)/ftp/%.o: CFLAGS += -Os
 $(BUILD)/hal/%.o: CFLAGS += -Os
 $(BUILD)/misc/%.o: CFLAGS += -Os
+$(BUILD)/mods/%.o: CFLAGS += -Os
 $(BUILD)/py/%.o: CFLAGS += -Os
 $(BUILD)/simplelink/%.o: CFLAGS += -Os
 $(BUILD)/drivers/cc3100/%.o: CFLAGS += -Os
@@ -209,9 +215,19 @@ endif
 
 SHELL = bash
 APP_SIGN = appsign.sh
+UPDATE_WIPY ?= tools/update-wipy.py
+WIPY_IP ?= '192.168.1.1'
+WIPY_USER ?= 'micro'
+WIPY_PWD ?= 'python'
 
 all: $(BUILD)/mcuimg.bin
 
+.PHONY: deploy
+
+deploy: $(BUILD)/mcuimg.bin
+	$(ECHO) "Writing $< to the board"
+	$(Q)$(PYTHON) $(UPDATE_WIPY) --verify --ip $(WIPY_IP) --user $(WIPY_USER) --password $(WIPY_PWD) --file $<
+
 $(BUILD)/application.axf: $(OBJ) $(LINKER_SCRIPT)
 	$(ECHO) "LINK $@"
 	$(Q)$(CC) -o $@ $(LDFLAGS) $(OBJ) $(LIBS)

cc3200/boards/LAUNCHXL/mpconfigboard.h

@@ -30,21 +30,18 @@
 #define MICROPY_HW_BOARD_NAME                       "LaunchPad"
 #define MICROPY_HW_MCU_NAME                         "CC3200"
 
-#define MICROPY_HW_HAS_SDCARD                       (0)
-#define MICROPY_HW_ENABLE_RNG                       (1)
-#define MICROPY_HW_ENABLE_RTC                       (1)
+#define MICROPY_HW_ANTENNA_DIVERSITY                (0)
 
-#define MICROPY_STDIO_UART                          PYB_UART_0
+#define MICROPY_STDIO_UART                          0
 #define MICROPY_STDIO_UART_BAUD                     115200
-#define MICROPY_STDIO_UART_RX_BUF_SIZE              128
 
 #define MICROPY_SYS_LED_PRCM                        PRCM_GPIOA1
 #define MICROPY_SAFE_BOOT_PRCM                      PRCM_GPIOA2
 #define MICROPY_SYS_LED_PORT                        GPIOA1_BASE
 #define MICROPY_SAFE_BOOT_PORT                      GPIOA2_BASE
-#define MICROPY_SYS_LED_GPIO                        pin_GPIO9
-#define MICROPY_SYS_LED_PIN_NUM                     PIN_64      // GPIO9
-#define MICROPY_SAFE_BOOT_PIN_NUM                   PIN_15      // GPIO22
+#define MICROPY_SYS_LED_GPIO                        pin_GP9
+#define MICROPY_SYS_LED_PIN_NUM                     PIN_64      // GP9
+#define MICROPY_SAFE_BOOT_PIN_NUM                   PIN_15      // GP22
 #define MICROPY_SYS_LED_PORT_PIN                    GPIO_PIN_1
 #define MICROPY_SAFE_BOOT_PORT_PIN                  GPIO_PIN_6
 

cc3200/boards/WIPY-SD/pins.csv

@@ -1,25 +0,0 @@
-L2,GPIO2
-L3,GPIO1
-L4,GPIO23
-L5,GPIO24
-L6,GPIO11
-L7,GPIO12
-L8,GPIO13
-L9,GPIO14
-L10,GPIO15
-L11,GPIO16
-L12,GPIO17
-L13,GPIO22
-L14,GPIO28
-R4,GPIO10
-R5,GPIO9
-R6,GPIO8
-R7,GPIO7
-R8,GPIO6
-R9,GPIO30
-R10,GPIO31
-R11,GPIO3
-R12,GPIO0
-R13,GPIO4
-R14,GPIO5
-HBL,GPIO25

cc3200/boards/WIPY/mpconfigboard.h

@@ -30,21 +30,15 @@
 #define MICROPY_HW_BOARD_NAME                       "WiPy"
 #define MICROPY_HW_MCU_NAME                         "CC3200"
 
-#define MICROPY_HW_HAS_SDCARD                       (0)
-#define MICROPY_HW_ENABLE_RNG                       (1)
-#define MICROPY_HW_ENABLE_RTC                       (1)
-
-#define MICROPY_STDIO_UART                          PYB_UART_0
-#define MICROPY_STDIO_UART_BAUD                     115200
-#define MICROPY_STDIO_UART_RX_BUF_SIZE              128
+#define MICROPY_HW_ANTENNA_DIVERSITY                (1)
 
 #define MICROPY_SYS_LED_PRCM                        PRCM_GPIOA3
 #define MICROPY_SAFE_BOOT_PRCM                      PRCM_GPIOA3
 #define MICROPY_SYS_LED_PORT                        GPIOA3_BASE
 #define MICROPY_SAFE_BOOT_PORT                      GPIOA3_BASE
-#define MICROPY_SYS_LED_GPIO                        pin_GPIO25
-#define MICROPY_SYS_LED_PIN_NUM                     PIN_21      // GPIO25   (SOP2)
-#define MICROPY_SAFE_BOOT_PIN_NUM                   PIN_18      // GPIO28
+#define MICROPY_SYS_LED_GPIO                        pin_GP25
+#define MICROPY_SYS_LED_PIN_NUM                     PIN_21      // GP25   (SOP2)
+#define MICROPY_SAFE_BOOT_PIN_NUM                   PIN_18      // GP28
 #define MICROPY_SYS_LED_PORT_PIN                    GPIO_PIN_1
 #define MICROPY_SAFE_BOOT_PORT_PIN                  GPIO_PIN_4
 

cc3200/boards/WIPY/pins.csv

@@ -1,25 +1,25 @@
-L2,GPIO2
-L3,GPIO1
-L4,GPIO23
-L5,GPIO24
-L6,GPIO11
-L7,GPIO12
-L8,GPIO13
-L9,GPIO14
-L10,GPIO15
-L11,GPIO16
-L12,GPIO17
-L13,GPIO22
-L14,GPIO28
-R4,GPIO10
-R5,GPIO9
-R6,GPIO8
-R7,GPIO7
-R8,GPIO6
-R9,GPIO30
-R10,GPIO31
-R11,GPIO3
-R12,GPIO0
-R13,GPIO4
-R14,GPIO5
-HBL,GPIO25
+L2,GP2
+L3,GP1
+L4,GP23
+L5,GP24
+L6,GP11
+L7,GP12
+L8,GP13
+L9,GP14
+L10,GP15
+L11,GP16
+L12,GP17
+L13,GP22
+L14,GP28
+R4,GP10
+R5,GP9
+R6,GP8
+R7,GP7
+R8,GP6
+R9,GP30
+R10,GP31
+R11,GP3
+R12,GP0
+R13,GP4
+R14,GP5
+HBL,GP25

cc3200/boards/cc3200_af.csv

@@ -1,25 +1,25 @@
 Pin,Name,Default,AF0,AF1,AF2,AF3,AF4,AF5,AF6,AF7,AF8,AF9,AF10,AF11,AF12,AF13,AF14,AF15,ADC
-1,GPIO10,GPIO10,GPIO10,I2C_SCL,,GT_PWM06,,,SDCARD_CLK,UART1_TX,,,,,GT_CCP01,,,,
-2,GPIO11,GPIO11,GPIO11,I2C_SDA,,GT_PWM07,pXCLK(XVCLK),,SDCARD_CMD,UART1_RX,,,,,GT_CCP02,McAFSX,,,
-3,GPIO12,GPIO12,GPIO12,,,McACLK,pVS(VSYNC),I2C_SCL,,UART0_TX,,,,,GT_CCP03,,,,
-4,GPIO13,GPIO13,GPIO13,,,,pHS(HSYNC),I2C_SDA,,UART0_RX,,,,,GT_CCP04,,,,
-5,GPIO14,GPIO14,GPIO14,,,,pDATA8(CAM_D4),2C_SCL,,GSPI_CLK,,,,,GT_CCP05,,,,
-6,GPIO15,GPIO15,GPIO15,,,,pDATA9(CAM_D5),I2C_SDA,,GSPI_MISO,,,,,,GT_CCP06,,,
-7,GPIO16,GPIO16,GPIO16,,,,pDATA10(CAM_D6),UART1_TX,,GSPI_MOSI,,,,,,GT_CCP07,,,
-8,GPIO17,GPIO17,GPIO17,,,,pDATA11(CAM_D7),UART1_RX,,GSPI_CS,,,,,,,,,
+1,GP10,GP10,GP10,I2C0_SCL,,TIM3_PWM0,,,SD0_CLK,UART1_TX,,,,,TIM0_CC1,,,,
+2,GP11,GP11,GP11,I2C0_SDA,,TIM3_PWM1,pXCLK(XVCLK),,SD0_CMD,UART1_RX,,,,,TIM1_CC0,I2S0_FS,,,
+3,GP12,GP12,GP12,,,I2S0_CLK,pVS(VSYNC),I2C0_SCL,,UART0_TX,,,,,TIM1_CC1,,,,
+4,GP13,GP13,GP13,,,,pHS(HSYNC),I2C0_SDA,,UART0_RX,,,,,TIM2_CC0,,,,
+5,GP14,GP14,GP14,,,,pDATA8(CAM_D4),I2C0_SCL,,SPI0_CLK,,,,,TIM2_CC1,,,,
+6,GP15,GP15,GP15,,,,pDATA9(CAM_D5),I2C0_SDA,,SPI0_MISO,SD0_DAT0,,,,,TIM3_CC0,,,
+7,GP16,GP16,GP16,,,,pDATA10(CAM_D6),UART1_TX,,SPI0_MOSI,SD0_CLK,,,,,TIM3_CC1,,,
+8,GP17,GP17,GP17,,,,pDATA11(CAM_D7),UART1_RX,,SPI0_CS0,SD0_CMD,,,,,,,,
 9,VDD_DIG1,VDD_DIG1,VDD_DIG1,,,,,,,,,,,,,,,,
 10,VIN_IO1,VIN_IO1,VIN_IO1,,,,,,,,,,,,,,,,
 11,FLASH_SPI_CLK,FLASH_SPI_CLK,FLASH_SPI_CLK,,,,,,,,,,,,,,,,
 12,FLASH_SPI_DOUT,FLASH_SPI_DOUT,FLASH_SPI_DOUT,,,,,,,,,,,,,,,,
 13,FLASH_SPI_DIN,FLASH_SPI_DIN,FLASH_SPI_DIN,,,,,,,,,,,,,,,,
 14,FLASH_SPI_CS,FLASH_SPI_CS,FLASH_SPI_CS,,,,,,,,,,,,,,,,
-15,GPIO22,GPIO22,GPIO22,,,,,GT_CCP04,,McAFSX,,,,,,,,,
-16,GPIO23,TDI,GPIO23,TDI,UART1_TX,,,,,,,2C_SCL,,,,,,,
-17,GPIO24,TDO,GPIO24,TDO,UART1_RX,,GT_CCP06,PWM0,McAFSX,,,I2C_SDA,,,,,,,
-18,GPIO28,GPIO28,GPIO28,,,,,,,,,,,,,,,,
-19,TCK,TCK,,TCK,,,,,,,GT_PWM03,,,,,,,,
-20,GPIO29,TMS,GPIO29,TMS,,,,,,,,,,,,,,,
-21,GPIO25,SOP2,GPIO25,,McAFSX,,,,,,,GT_PWM02,,,,,,,
+15,GP22,GP22,GP22,,,,,TIM2_CC0,,I2S0_FS,,,,,,,,,
+16,GP23,TDI,GP23,TDI,UART1_TX,,,,,,,I2C0_SCL,,,,,,,
+17,GP24,TDO,GP24,TDO,UART1_RX,,TIM3_CC0,TIM0_PWM0,I2S0_FS,,,I2C0_SDA,,,,,,,
+18,GP28,GP28,GP28,,,,,,,,,,,,,,,,
+19,TCK,TCK,,TCK,,,,,,,TIM1_PWM2,,,,,,,,
+20,GP29,TMS,GP29,TMS,,,,,,,,,,,,,,,
+21,GP25,SOP2,GP25,,I2S0_FS,,,,,,,TIM1_PWM0,,,,,,,
 22,WLAN_XTAL_N,WLAN_XTAL_N,WLAN_XTAL_N,,,,,,,,,,,,,,,,
 23,WLAN_XTAL_P,WLAN_XTAL_P,WLAN_XTAL_P,,,,,,,,,,,,,,,,
 24,VDD_PLL,VDD_PLL,VDD_PLL,,,,,,,,,,,,,,,,
@@ -43,24 +43,24 @@ Pin,Name,Default,AF0,AF1,AF2,AF3,AF4,AF5,AF6,AF7,AF8,AF9,AF10,AF11,AF12,AF13,AF1
 42,DCDC_PA_OUT,DCDC_PA_O UT,DCDC_PA_O UT,,,,,,,,,,,,,,,,
 43,DCDC_DIG_SW,DCDC_DIG_ SW,DCDC_DIG_ SW,,,,,,,,,,,,,,,,
 44,VIN_DCDC_DIG,VIN_DCDC_ DIG,VIN_DCDC_ DIG,,,,,,,,,,,,,,,,
-45,GPIO31,DCDC_ANA2_SW_P,GPIO31,,UART1_RX,,,,McAXR0,GSPI_CLK,,UART0_RX,,,McAFSX,,,,
+45,GP31,DCDC_ANA2_SW_P,GP31,,UART1_RX,,,,I2S0_DAT0,SPI0_CLK,,UART0_RX,,,I2S0_FS,,,,
 46,DCDC_ANA2_SW_N,DCDC_ANA2_SW_N,DCDC_ANA2_SW_N,,,,,,,,,,,,,,,,
 47,VDD_ANA2,VDD_ANA2,VDD_ANA2,,,,,,,,,,,,,,,,
 48,VDD_ANA1,VDD_ANA1,VDD_ANA1,,,,,,,,,,,,,,,,
 49,VDD_RAM,VDD_RAM,VDD_RAM,,,,,,,,,,,,,,,,
-50,GPIO0,GPIO0,GPIO0,,,UART0_RTS,McAXR0,,McAXR1,GT_CCP00,,GSPI_CS,UART1_RTS,,UART0_CTS,,,,
+50,GP0,GP0,GP0,,,UART0_RTS,I2S0_DAT0,,I2S0_DAT1,TIM0_CC0,,SPI0_CS0,UART1_RTS,,UART0_CTS,,,,
 51,RTC_XTAL_P,RTC_XTAL_P,RTC_XTAL_P,,,,,,,,,,,,,,,,
-52,RTC_XTAL_N,RTC_XTAL_N,GPIO32,,McACLK,,McAXR0,,UART0_RTS,,GSPI_MOSI,,,,,,,,
-53,GPIO30,GPIO30,GPIO30,,McACLK,McAFSX,GT_CCP05,,,GSPI_MISO,,UART0_TX,,,,,,,
+52,RTC_XTAL_N,RTC_XTAL_N,GP32,,I2S0_CLK,,I2S0_DAT0,,UART0_RTS,,SPI0_MOSI,,,,,,,,
+53,GP30,GP30,GP30,,I2S0_CLK,I2S0_FS,TIM2_CC1,,,SPI0_MISO,,UART0_TX,,,,,,,
 54,VIN_IO2,VIN_IO2,VIN_IO2,,,,,,,,,,,,,,,,
-55,GPIO1,GPIO1,GPIO1,,,GSPI_MISO,pCLK (PIXCLK),,UART1_TX,GT_CCP01,,,,,,,,,
+55,GP1,GP1,GP1,,,UART0_TX,pCLK (PIXCLK),,UART1_TX,TIM0_CC1,,,,,,,,,
 56,VDD_DIG2,VDD_DIG2,VDD_DIG2,,,,,,,,,,,,,,,,
-57,GPIO2,GPIO2,GPIO2,,,UART0_RX,,,UART1_RX,GT_CCP02,,,,,,,,,ADC_CH0
-58,GPIO3,GPIO3,GPIO3,,,,pDATA7(CAM_D3),,UART1_TX,,,,,,,,,,ADC_CH1
-59,GPIO4,GPIO4,GPIO4,,,,pDATA6(CAM_D2),,UART1_RX,,,,,,,,,,ADC_CH2
-60,GPIO5,GPIO5,GPIO5,,,,pDATA5(CAM_D1),,McAXR1,GT_CCP05,,,,,,,,,ADC_CH3
-61,GPIO6,GPIO6,GPIO6,,,UART1_CTS,pDATA4(CAM_D0),UART0_RTS,UART0_CTS,GT_CCP06,,,,,,,,,
-62,GPIO7,GPIO7,GPIO7,,,UART1_RTS,,,,,,,UART0_RTS,UART0_TX,,McACLKX,,,
-63,GPIO8,GPIO8,GPIO8,,,,,,SDCARD_IRQ,McAFSX,,,,,GT_CCP06,,,,
-64,GPIO9,GPIO9,GPIO9,,,GT_PWM05,,,SDCARD_DATA,McAXR0,,,,,GT_CCP00,,,,
+57,GP2,GP2,GP2,,,UART0_RX,,,UART1_RX,TIM1_CC0,,,,,,,,,ADC0_CH0
+58,GP3,GP3,GP3,,,,pDATA7(CAM_D3),,UART1_TX,,,,,,,,,,ADC0_CH1
+59,GP4,GP4,GP4,,,,pDATA6(CAM_D2),,UART1_RX,,,,,,,,,,ADC0_CH2
+60,GP5,GP5,GP5,,,,pDATA5(CAM_D1),,I2S0_DAT1,TIM2_CC1,,,,,,,,,ADC0_CH3
+61,GP6,GP6,GP6,,,UART1_CTS,pDATA4(CAM_D0),UART0_RTS,UART0_CTS,TIM3_CC0,,,,,,,,,
+62,GP7,GP7,GP7,,,UART1_RTS,,,,,,,UART0_RTS,UART0_TX,,I2S0_CLK,,,
+63,GP8,GP8,GP8,,,,,,SD0_IRQ,I2S0_FS,,,,,TIM3_CC0,,,,
+64,GP9,GP9,GP9,,,TIM2_PWM1,,,SD0_DAT0,I2S0_DAT0,,,,,TIM0_CC0,,,,
 65,GND_TAB,GND_TAB,GND_TAB,,,,,,,,,,,,,,,,

cc3200/boards/cc3200_prefix.c

@@ -39,16 +39,29 @@
 #include "pybpin.h"
 
 
-#define PIN(p_pin_name, p_port, p_bit, p_pin_num) \
+#define AF(af_name, af_idx, af_fn, af_unit, af_type) \
+{ \
+    .name = MP_QSTR_ ## af_name, \
+    .idx = (af_idx), \
+    .fn = PIN_FN_ ## af_fn, \
+    .unit = (af_unit), \
+    .type = PIN_TYPE_ ## af_fn ## _ ## af_type, \
+}
+
+
+#define PIN(p_pin_name, p_port, p_bit, p_pin_num, p_af_list, p_num_afs) \
 { \
     { &pin_type }, \
     .name     = MP_QSTR_ ## p_pin_name, \
     .port     = PORT_A ## p_port, \
-    .type     = PIN_TYPE_STD, \
+    .af_list  = (p_af_list), \
+    .pull     = PIN_TYPE_STD, \
     .bit      = (p_bit), \
     .pin_num  = (p_pin_num), \
     .af       = PIN_MODE_0, \
     .strength = PIN_STRENGTH_4MA, \
     .mode     = GPIO_DIR_MODE_IN, \
-    .isused   = false, \
+    .num_afs  = (p_num_afs), \
+    .value    = 0, \
+    .used     = false, \
 }

cc3200/boards/make-pins.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-"""Generates the pins files for the CC3200."""
+"""Generates the pins file for the CC3200."""
 
 from __future__ import print_function
 
@@ -8,20 +8,43 @@ import sys
 import csv
 
 
+SUPPORTED_AFS = { 'UART': ('TX', 'RX', 'RTS', 'CTS'),
+                  'SPI': ('CLK', 'MOSI', 'MISO', 'CS0'),
+                  #'I2S': ('CLK', 'FS', 'DAT0', 'DAT1'),
+                  'I2C': ('SDA', 'SCL'),
+                  'TIM': ('PWM0', 'PWM1', 'CC0', 'CC1'),
+                  'SD': ('CLK', 'CMD', 'DAT0'),
+                  'ADC': ('CH0', 'CH1', 'CH2', 'CH3')
+                }
+
 def parse_port_pin(name_str):
     """Parses a string and returns a (port, gpio_bit) tuple."""
-    if len(name_str) < 5:
-        raise ValueError("Expecting pin name to be at least 5 characters")
-    if name_str[:4] != 'GPIO':
-        raise ValueError("Expecting pin name to start with GPIO")
-    if not name_str[4:].isdigit():
+    if len(name_str) < 3:
+        raise ValueError("Expecting pin name to be at least 3 characters")
+    if name_str[:2] != 'GP':
+        raise ValueError("Expecting pin name to start with GP")
+    if not name_str[2:].isdigit():
         raise ValueError("Expecting numeric GPIO number")
-    port = int(int(name_str[4:]) / 8)
-    gpio_bit = 1 << int(int(name_str[4:]) % 8)
+    port = int(int(name_str[2:]) / 8)
+    gpio_bit = 1 << int(int(name_str[2:]) % 8)
     return (port, gpio_bit)
 
 
-class Pin(object):
+class AF:
+    """Holds the description of an alternate function"""
+    def __init__(self, name, idx, fn, unit, type):
+        self.name = name
+        self.idx = idx
+        if self.idx > 15:
+            self.idx = -1
+        self.fn = fn
+        self.unit = unit
+        self.type = type
+
+    def print(self):
+        print ('    AF({:16s}, {:4d}, {:8s}, {:4d}, {:8s}),    // {}'.format(self.name, self.idx, self.fn, self.unit, self.type, self.name))
+
+class Pin:
     """Holds the information associated with a pin."""
     def __init__(self, name, port, gpio_bit, pin_num):
         self.name = name
@@ -29,45 +52,48 @@ class Pin(object):
         self.gpio_bit = gpio_bit
         self.pin_num = pin_num
         self.board_pin = False
+        self.afs = []
 
-    def cpu_pin_name(self):
-        return self.name  
-        
-    def is_board_pin(self):
-        return self.board_pin
-
-    def set_is_board_pin(self):
-        self.board_pin = True
+    def add_af(self, af):
+        self.afs.append(af)
 
     def print(self):
-        print('pin_obj_t pin_{:6s} = PIN({:6s}, {:1d}, {:3d}, {:2d});'.format(
-               self.name, self.name, self.port, self.gpio_bit, self.pin_num))
+        print('// {}'.format(self.name))
+        if len(self.afs):
+            print('const pin_af_t pin_{}_af[] = {{'.format(self.name))
+            for af in self.afs:
+                af.print()
+            print('};')
+            print('pin_obj_t pin_{:4s} = PIN({:6s}, {:1d}, {:3d}, {:2d}, pin_{}_af, {});\n'.format(
+                   self.name, self.name, self.port, self.gpio_bit, self.pin_num, self.name, len(self.afs)))
+        else:
+            print('pin_obj_t pin_{:4s} = PIN({:6s}, {:1d}, {:3d}, {:2d}, NULL, 0);\n'.format(
+                   self.name, self.name, self.port, self.gpio_bit, self.pin_num))
 
     def print_header(self, hdr_file):
         hdr_file.write('extern pin_obj_t pin_{:s};\n'.format(self.name))
 
 
-class Pins(object):
-
+class Pins:
     def __init__(self):
-        self.cpu_pins = []   # list of pin objects
+        self.board_pins = []   # list of pin objects
 
     def find_pin(self, port, gpio_bit):
-        for pin in self.cpu_pins:
+        for pin in self.board_pins:
             if pin.port == port and pin.gpio_bit == gpio_bit:
                 return pin
 
     def find_pin_by_num(self, pin_num):
-        for pin in self.cpu_pins:
+        for pin in self.board_pins:
             if pin.pin_num == pin_num:
                 return pin
 
     def find_pin_by_name(self, name):
-        for pin in self.cpu_pins:
+        for pin in self.board_pins:
             if pin.name == name:
                 return pin
 
-    def parse_af_file(self, filename, pin_col, pinname_col):
+    def parse_af_file(self, filename, pin_col, pinname_col, af_start_col):
         with open(filename, 'r') as csvfile:
             rows = csv.reader(csvfile)
             for row in rows:
@@ -76,11 +102,21 @@ class Pins(object):
                 except:
                     continue
                 if not row[pin_col].isdigit():
-                    raise ValueError("Invalid pin number:  {:s} in row {:s}".format(row[pin_col]), row)
+                    raise ValueError("Invalid pin number {:s} in row {:s}".format(row[pin_col]), row)
                 # Pin numbers must start from 0 when used with the TI API
                 pin_num = int(row[pin_col]) - 1;        
                 pin = Pin(row[pinname_col], port_num, gpio_bit, pin_num)
-                self.cpu_pins.append(pin)
+                self.board_pins.append(pin)
+                af_idx = 0
+                for af in row[af_start_col:]:
+                    af_splitted = af.split('_')
+                    fn_name = af_splitted[0].rstrip('0123456789')
+                    if  fn_name in SUPPORTED_AFS:
+                        type_name = af_splitted[1]
+                        if type_name in SUPPORTED_AFS[fn_name]:
+                            unit_idx = af_splitted[0][-1]
+                            pin.add_af(AF(af, af_idx, fn_name, int(unit_idx), type_name))
+                    af_idx += 1
 
     def parse_board_file(self, filename, cpu_pin_col):
         with open(filename, 'r') as csvfile:
@@ -92,37 +128,44 @@ class Pins(object):
                 else:
                     pin = self.find_pin_by_name(row[cpu_pin_col])
                 if pin:
-                    pin.set_is_board_pin()
+                    pin.board_pin = True
 
     def print_named(self, label, pins):
         print('')
         print('STATIC const mp_map_elem_t pin_{:s}_pins_locals_dict_table[] = {{'.format(label))
         for pin in pins:
-            if pin.is_board_pin():
-                print('  {{ MP_OBJ_NEW_QSTR(MP_QSTR_{:6s}), (mp_obj_t)&pin_{:6s} }},'.format(pin.cpu_pin_name(),  pin.cpu_pin_name()))
+            if pin.board_pin:
+                print('    {{ MP_OBJ_NEW_QSTR(MP_QSTR_{:6s}), (mp_obj_t)&pin_{:6s} }},'.format(pin.name, pin.name))
         print('};')
         print('MP_DEFINE_CONST_DICT(pin_{:s}_pins_locals_dict, pin_{:s}_pins_locals_dict_table);'.format(label, label));
 
     def print(self):
-        for pin in self.cpu_pins:
-            if pin.is_board_pin():
+        for pin in self.board_pins:
+            if pin.board_pin:
                 pin.print()
-        self.print_named('cpu', self.cpu_pins)
+        self.print_named('board', self.board_pins)
         print('')
 
     def print_header(self, hdr_filename):
         with open(hdr_filename, 'wt') as hdr_file:
-            for pin in self.cpu_pins:
-                if pin.is_board_pin():
+            for pin in self.board_pins:
+                if pin.board_pin:
                     pin.print_header(hdr_file)
 
     def print_qstr(self, qstr_filename):
         with open(qstr_filename, 'wt') as qstr_file:
-            qstr_set = set([])
-            for pin in self.cpu_pins:
-                if pin.is_board_pin():
-                    qstr_set |= set([pin.cpu_pin_name()])
-            for qstr in sorted(qstr_set):
+            pin_qstr_set = set([])
+            af_qstr_set = set([])
+            for pin in self.board_pins:
+                if pin.board_pin:
+                    pin_qstr_set |= set([pin.name])
+                    for af in pin.afs:
+                        af_qstr_set |= set([af.name])
+            print('// Board pins', file=qstr_file)
+            for qstr in sorted(pin_qstr_set):
+                print('Q({})'.format(qstr), file=qstr_file)
+            print('\n// Pin AFs', file=qstr_file)
+            for qstr in sorted(af_qstr_set):
                 print('Q({})'.format(qstr), file=qstr_file)
 
 
@@ -169,12 +212,12 @@ def main():
     print('//')
     if args.af_filename:
         print('// --af {:s}'.format(args.af_filename))
-        pins.parse_af_file(args.af_filename, 0, 1)
+        pins.parse_af_file(args.af_filename, 0, 1, 3)
 
     if args.board_filename:
         print('// --board {:s}'.format(args.board_filename))
-        pins.parse_board_file(args.board_filename, 1)    
-        
+        pins.parse_board_file(args.board_filename, 1)
+
     if args.prefix_filename:
         print('// --prefix {:s}'.format(args.prefix_filename))
         print('')

cc3200/bootmgr/bootloader.mk

@@ -19,6 +19,7 @@ BOOT_CPPDEFINES = -Dgcc -DBOOTLOADER -DTARGET_IS_CC3200 -DSL_TINY
 BOOT_HAL_SRC_C = $(addprefix hal/,\
 	cpu.c \
 	interrupt.c \
+	gpio.c \
 	pin.c \
 	prcm.c \
 	shamd5.c \
@@ -42,6 +43,7 @@ BOOT_CC3100_SRC_C = $(addprefix drivers/cc3100/,\
 	)
 
 BOOT_MISC_SRC_C = $(addprefix misc/,\
+	antenna.c \
 	mperror.c \
 	)
 
@@ -50,7 +52,7 @@ BOOT_SL_SRC_C = $(addprefix simplelink/,\
 	)
 
 BOOT_UTIL_SRC_C = $(addprefix util/,\
-	hash.c \
+	cryptohash.c \
 	) 
 
 BOOT_MAIN_SRC_C = \

cc3200/bootmgr/bootmgr.lds

@@ -39,6 +39,7 @@ SECTIONS
     {
         _text = .;
         KEEP(*(.intvecs))
+        *(.boot*)
         *(.text*)
         *(.rodata*)
         *(.ARM.extab* .gnu.linkonce.armextab.*)

cc3200/bootmgr/flc.h

@@ -43,23 +43,31 @@ extern "C"
 *******************************************************************************/
 #define IMG_BOOT_INFO           "/sys/bootinfo.bin"
 #define IMG_FACTORY             "/sys/factimg.bin"
-#define IMG_UPDATE              "/sys/updtimg.bin"
+#define IMG_UPDATE1             "/sys/updtimg1.bin"
+#define IMG_UPDATE2             "/sys/updtimg2.bin"
+#define IMG_PREFIX              "/sys/updtimg"
 
 #define IMG_SRVPACK             "/sys/servicepack.ucf"
 #define SRVPACK_SIGN            "/sys/servicepack.sig"
 
+#define CA_FILE                 "/cert/ca.pem"
+#define CERT_FILE               "/cert/cert.pem"
+#define KEY_FILE                "/cert/private.key"
+
 /******************************************************************************
-   Image file sizes
+   Special file sizes
 *******************************************************************************/
-#define IMG_SIZE                (232 * 1024)    /* 16KB are reserved for the bootloader and at least 8KB for the heap*/
+#define IMG_SIZE                (192 * 1024)    /* 16KB are reserved for the bootloader and at least 48KB for the heap*/
 #define SRVPACK_SIZE            (16  * 1024)
 #define SIGN_SIZE               (2   * 1024)
+#define CA_KEY_SIZE             (4   * 1024)
 
 /******************************************************************************
    Active Image
 *******************************************************************************/
 #define IMG_ACT_FACTORY         0
-#define IMG_ACT_UPDATE          1
+#define IMG_ACT_UPDATE1         1
+#define IMG_ACT_UPDATE2         2
 
 #define IMG_STATUS_CHECK        0
 #define IMG_STATUS_READY        1
@@ -67,13 +75,13 @@ extern "C"
 /******************************************************************************
    Boot Info structure
 *******************************************************************************/
-typedef struct sBootInfo
+typedef struct _sBootInfo_t
 {
   _u8  ActiveImg;
   _u8  Status;
+  _u8  PrevImg;
   _u8  : 8;
-  _u8  : 8;
-}sBootInfo_t;
+} sBootInfo_t;
 
 
 /******************************************************************************

cc3200/bootmgr/main.c

@@ -26,6 +26,7 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+
 #include "std.h"
 
 #include "py/mpconfig.h"
@@ -47,11 +48,12 @@
 #include "flc.h"
 #include "bootmgr.h"
 #include "shamd5.h"
-#include "hash.h"
+#include "cryptohash.h"
 #include "utils.h"
 #include "cc3200_hal.h"
 #include "debug.h"
 #include "mperror.h"
+#include "antenna.h"
 
 
 //*****************************************************************************
@@ -62,11 +64,16 @@
 #define BOOTMGR_HASH_SIZE                   32
 #define BOOTMGR_BUFF_SIZE                   512
 
-#define BOOTMGR_WAIT_SAFE_MODE_MS           1200
-#define BOOTMGR_WAIT_SAFE_MODE_TOOGLE_MS    200
+#define BOOTMGR_WAIT_SAFE_MODE_0_MS         500
 
-#define BOOTMGR_SAFE_MODE_ENTER_MS          800
-#define BOOTMGR_SAFE_MODE_ENTER_TOOGLE_MS   80
+#define BOOTMGR_WAIT_SAFE_MODE_1_MS         3000
+#define BOOTMGR_WAIT_SAFE_MODE_1_BLINK_MS   500
+
+#define BOOTMGR_WAIT_SAFE_MODE_2_MS         3000
+#define BOOTMGR_WAIT_SAFE_MODE_2_BLINK_MS   250
+
+#define BOOTMGR_WAIT_SAFE_MODE_3_MS         1500
+#define BOOTMGR_WAIT_SAFE_MODE_3_BLINK_MS   100
 
 //*****************************************************************************
 // Exported functions declarations
@@ -77,9 +84,11 @@ extern void bootmgr_run_app (_u32 base);
 // Local functions declarations
 //*****************************************************************************
 static void bootmgr_board_init (void);
-static bool bootmgr_verify (void);
+static bool bootmgr_verify (_u8 *image);
 static void bootmgr_load_and_execute (_u8 *image);
-static bool safe_mode_boot (void);
+static bool wait_while_blinking (uint32_t wait_time, uint32_t period, bool force_wait);
+static bool safe_boot_request_start (uint32_t wait_time);
+static void wait_for_safe_boot (sBootInfo_t *psBootInfo);
 static void bootmgr_image_loader (sBootInfo_t *psBootInfo);
 
 //*****************************************************************************
@@ -138,44 +147,52 @@ void SimpleLinkSockEventHandler(SlSockEvent_t *pSock)
 //! Board Initialization & Configuration
 //*****************************************************************************
 static void bootmgr_board_init(void) {
-    // Set vector table base
+    // set the vector table base
     MAP_IntVTableBaseSet((unsigned long)&g_pfnVectors[0]);
 
-    // Enable Processor Interrupts
+    // enable processor interrupts
     MAP_IntMasterEnable();
     MAP_IntEnable(FAULT_SYSTICK);
 
-    // Mandatory MCU Initialization
+    // mandatory MCU initialization
     PRCMCC3200MCUInit();
 
+    // clear all the special bits, since we can't trust their content after reset
+    // except for the WDT reset one!!
+    PRCMClearSpecialBit(PRCM_SAFE_BOOT_BIT);
+    PRCMClearSpecialBit(PRCM_FIRST_BOOT_BIT);
+
+    // check the reset after clearing the special bits
     mperror_bootloader_check_reset_cause();
 
-    // Enable the Data Hashing Engine
-    HASH_Init();
+#if MICROPY_HW_ANTENNA_DIVERSITY
+    // configure the antenna selection pins
+    antenna_init0();
+#endif
 
-    // Init the system led and the system switch
+    // enable the data hashing engine
+    CRYPTOHASH_Init();
+
+    // init the system led and the system switch
     mperror_init0();
-
-    // clear the safe boot flag, since we can't trust its content after reset
-    PRCMClearSafeBootRequest();
 }
 
 //*****************************************************************************
 //! Verifies the integrity of the new application binary
 //*****************************************************************************
-static bool bootmgr_verify (void) {
+static bool bootmgr_verify (_u8 *image) {
     SlFsFileInfo_t FsFileInfo;
     _u32 reqlen, offset = 0;
     _i32 fHandle;
 
     // open the file for reading
-    if (0 == sl_FsOpen((_u8 *)IMG_UPDATE, FS_MODE_OPEN_READ, NULL, &fHandle)) {
+    if (0 == sl_FsOpen(image, FS_MODE_OPEN_READ, NULL, &fHandle)) {
         // get the file size
-        sl_FsGetInfo((_u8 *)IMG_UPDATE, 0, &FsFileInfo);
+        sl_FsGetInfo(image, 0, &FsFileInfo);
 
         if (FsFileInfo.FileLen > BOOTMGR_HASH_SIZE) {
             FsFileInfo.FileLen -= BOOTMGR_HASH_SIZE;
-            HASH_SHAMD5Start(BOOTMGR_HASH_ALGO, FsFileInfo.FileLen);
+            CRYPTOHASH_SHAMD5Start(BOOTMGR_HASH_ALGO, FsFileInfo.FileLen);
             do {
                 if ((FsFileInfo.FileLen - offset) > BOOTMGR_BUFF_SIZE) {
                     reqlen = BOOTMGR_BUFF_SIZE;
@@ -185,10 +202,10 @@ static bool bootmgr_verify (void) {
                 }
 
                 offset += sl_FsRead(fHandle, offset, bootmgr_file_buf, reqlen);
-                HASH_SHAMD5Update(bootmgr_file_buf, reqlen);
+                CRYPTOHASH_SHAMD5Update(bootmgr_file_buf, reqlen);
             } while (offset < FsFileInfo.FileLen);
 
-            HASH_SHAMD5Read (bootmgr_file_buf);
+            CRYPTOHASH_SHAMD5Read (bootmgr_file_buf);
 
             // convert the resulting hash to hex
             for (_u32 i = 0; i < (BOOTMGR_HASH_SIZE / 2); i++) {
@@ -235,47 +252,81 @@ static void bootmgr_load_and_execute (_u8 *image) {
 }
 
 //*****************************************************************************
-//! Check for the safe mode pin
+//! Wait while the safe mode pin is being held high and blink the system led
+//! with the specified period
 //*****************************************************************************
-static bool safe_mode_boot (void) {
-    _u32 count = 0;
-    while (MAP_GPIOPinRead(MICROPY_SAFE_BOOT_PORT, MICROPY_SAFE_BOOT_PORT_PIN) &&
-           ((BOOTMGR_WAIT_SAFE_MODE_TOOGLE_MS * count++) < BOOTMGR_WAIT_SAFE_MODE_MS)) {
+static bool wait_while_blinking (uint32_t wait_time, uint32_t period, bool force_wait) {
+    _u32 count;
+    for (count = 0; (force_wait || MAP_GPIOPinRead(MICROPY_SAFE_BOOT_PORT, MICROPY_SAFE_BOOT_PORT_PIN)) &&
+         ((period * count) < wait_time); count++) {
         // toogle the led
         MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, ~MAP_GPIOPinRead(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN));
-        UtilsDelay(UTILS_DELAY_US_TO_COUNT(BOOTMGR_WAIT_SAFE_MODE_TOOGLE_MS * 1000));
+        UtilsDelay(UTILS_DELAY_US_TO_COUNT(period * 1000));
+    }
+    return MAP_GPIOPinRead(MICROPY_SAFE_BOOT_PORT, MICROPY_SAFE_BOOT_PORT_PIN) ? true : false;
+}
+
+static bool safe_boot_request_start (uint32_t wait_time) {
+    if (MAP_GPIOPinRead(MICROPY_SAFE_BOOT_PORT, MICROPY_SAFE_BOOT_PORT_PIN)) {
+        UtilsDelay(UTILS_DELAY_US_TO_COUNT(wait_time * 1000));
     }
-    mperror_deinit_sfe_pin();
     return MAP_GPIOPinRead(MICROPY_SAFE_BOOT_PORT, MICROPY_SAFE_BOOT_PORT_PIN) ? true : false;
 }
 
 //*****************************************************************************
-//! Load the proper image based on information from boot info and executes it.
+//! Check for the safe mode pin
+//*****************************************************************************
+static void wait_for_safe_boot (sBootInfo_t *psBootInfo) {
+    if (safe_boot_request_start(BOOTMGR_WAIT_SAFE_MODE_0_MS)) {
+        if (wait_while_blinking(BOOTMGR_WAIT_SAFE_MODE_1_MS, BOOTMGR_WAIT_SAFE_MODE_1_BLINK_MS, false)) {
+            // go back one step in time
+            psBootInfo->ActiveImg = psBootInfo->PrevImg;
+            if (wait_while_blinking(BOOTMGR_WAIT_SAFE_MODE_2_MS, BOOTMGR_WAIT_SAFE_MODE_2_BLINK_MS, false)) {
+                // go back directly to the factory image
+                psBootInfo->ActiveImg = IMG_ACT_FACTORY;
+                wait_while_blinking(BOOTMGR_WAIT_SAFE_MODE_3_MS, BOOTMGR_WAIT_SAFE_MODE_3_BLINK_MS, true);
+            }
+        }
+        // turn off the system led
+        MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, 0);
+        // request a safe boot to the application
+        PRCMSetSpecialBit(PRCM_SAFE_BOOT_BIT);
+    }
+    // deinit the safe boot pin
+    mperror_deinit_sfe_pin();
+}
+
+//*****************************************************************************
+//! Load the proper image based on the information from the boot info
+//! and launch it.
 //*****************************************************************************
 static void bootmgr_image_loader(sBootInfo_t *psBootInfo) {
     _i32 fhandle;
-    if (safe_mode_boot()) {
-         _u32 count = 0;
-         while ((BOOTMGR_SAFE_MODE_ENTER_TOOGLE_MS * count++) < BOOTMGR_SAFE_MODE_ENTER_MS) {
-             // toogle the led
-             MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, ~MAP_GPIOPinRead(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN));
-             UtilsDelay(UTILS_DELAY_US_TO_COUNT(BOOTMGR_SAFE_MODE_ENTER_TOOGLE_MS * 1000));
-         }
-         psBootInfo->ActiveImg = IMG_ACT_FACTORY;
-         // turn the led off
-         MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, 0);
-         // request a safe boot to the application
-         PRCMRequestSafeBoot();
+    _u8 *image;
+
+    // search for the active image
+    switch (psBootInfo->ActiveImg) {
+    case IMG_ACT_UPDATE1:
+        image = (unsigned char *)IMG_UPDATE1;
+        break;
+    case IMG_ACT_UPDATE2:
+        image = (unsigned char *)IMG_UPDATE2;
+        break;
+    default:
+        image = (unsigned char *)IMG_FACTORY;
+        break;
     }
-    // do we have a new update image that needs to be verified?
-    else if ((psBootInfo->ActiveImg == IMG_ACT_UPDATE) && (psBootInfo->Status == IMG_STATUS_CHECK)) {
-        if (!bootmgr_verify()) {
-            // delete the corrupted file
-            sl_FsDel((_u8 *)IMG_UPDATE, 0);
-            // switch to the factory image
-            psBootInfo->ActiveImg = IMG_ACT_FACTORY;
+
+    // do we have a new image that needs to be verified?
+    if ((psBootInfo->ActiveImg != IMG_ACT_FACTORY) && (psBootInfo->Status == IMG_STATUS_CHECK)) {
+        if (!bootmgr_verify(image)) {
+            // verification failed, delete the broken file
+            sl_FsDel(image, 0);
+            // switch to the previous image
+            psBootInfo->ActiveImg = psBootInfo->PrevImg;
+            psBootInfo->PrevImg = IMG_ACT_FACTORY;
         }
-        // in any case, set the status as "READY"
+        // in any case, change the status to "READY"
         psBootInfo->Status = IMG_STATUS_READY;
         // write the new boot info
         if (!sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_WRITE, NULL, &fhandle)) {
@@ -285,24 +336,34 @@ static void bootmgr_image_loader(sBootInfo_t *psBootInfo) {
         }
     }
 
-    // now boot the active image
-    if (IMG_ACT_UPDATE == psBootInfo->ActiveImg) {
-        bootmgr_load_and_execute((unsigned char *)IMG_UPDATE);
-    }
-    else {
-        bootmgr_load_and_execute((unsigned char *)IMG_FACTORY);
+    // this one might modify the boot info hence it MUST be called after
+    // bootmgr_verify! (so that the changes are not saved to flash)
+    wait_for_safe_boot(psBootInfo);
+
+    // select the active image again, since it might have changed
+    switch (psBootInfo->ActiveImg) {
+    case IMG_ACT_UPDATE1:
+        image = (unsigned char *)IMG_UPDATE1;
+        break;
+    case IMG_ACT_UPDATE2:
+        image = (unsigned char *)IMG_UPDATE2;
+        break;
+    default:
+        image = (unsigned char *)IMG_FACTORY;
+        break;
     }
+    bootmgr_load_and_execute(image);
 }
 
 //*****************************************************************************
 //! Main function
 //*****************************************************************************
 int main (void) {
-    sBootInfo_t sBootInfo = { .ActiveImg = IMG_ACT_FACTORY, .Status = IMG_STATUS_READY };
+    sBootInfo_t sBootInfo = { .ActiveImg = IMG_ACT_FACTORY, .Status = IMG_STATUS_READY, .PrevImg = IMG_ACT_FACTORY };
     bool bootapp = false;
     _i32 fhandle;
 
-    // Board Initialization
+    // board setup
     bootmgr_board_init();
 
     // start simplelink since we need it to access the sflash
@@ -315,17 +376,20 @@ int main (void) {
         }
         sl_FsClose(fhandle, 0, 0, 0);
     }
+    // boot info file not present, it means that this is the first boot after being programmed
     if (!bootapp) {
         // create a new boot info file
         _u32 BootInfoCreateFlag  = _FS_FILE_OPEN_FLAG_COMMIT | _FS_FILE_PUBLIC_WRITE | _FS_FILE_PUBLIC_READ;
         if (!sl_FsOpen ((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_CREATE((2 * sizeof(sBootInfo_t)),
                         BootInfoCreateFlag), NULL, &fhandle)) {
-            // Write the default boot info.
+            // write the default boot info.
             if (sizeof(sBootInfo_t) == sl_FsWrite(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t))) {
                 bootapp = true;
             }
             sl_FsClose(fhandle, 0, 0, 0);
         }
+        // signal the first boot to the application
+        PRCMSetSpecialBit(PRCM_FIRST_BOOT_BIT);
     }
 
     if (bootapp) {
@@ -336,14 +400,14 @@ int main (void) {
     // stop simplelink
     sl_Stop(SL_STOP_TIMEOUT);
 
-    // if we've reached this point, then it means a fatal error occurred and the application
-    // could not be loaded, so, loop forever and signal the crash to the user
+    // if we've reached this point, then it means that a fatal error has occurred and the
+    // application could not be loaded, so, loop forever and signal the crash to the user
     while (true) {
         // keep the bld on
         MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, MICROPY_SYS_LED_PORT_PIN);
-        __asm volatile("    dsb      \n"
-                       "    isb      \n"
-                       "    wfi      \n");
+        __asm volatile(" dsb \n"
+                       " isb \n"
+                       " wfi \n");
     }
 }
 

cc3200/fatfs/src/diskio.c

@@ -10,21 +10,21 @@
 #include <stdbool.h>
 
 #include "py/mpconfig.h"
-#include "diskio.h"		        /* FatFs lower layer API */
+#include "py/runtime.h"
+#include "py/obj.h"
+#include "diskio.h"             /* FatFs lower layer API */
 #include "sflash_diskio.h"      /* Serial flash disk IO API */
-#if MICROPY_HW_HAS_SDCARD
-#include "sd_diskio.h"		    /* SDCARD disk IO API */
-#endif
+#include "sd_diskio.h"          /* SDCARD disk IO API */
 #include "inc/hw_types.h"
 #include "inc/hw_ints.h"
 #include "inc/hw_memmap.h"
 #include "rom_map.h"
 #include "prcm.h"
+#include "pybrtc.h"
 #include "timeutils.h"
-
-/* Definitions of physical drive number for each drive */
-#define SFLASH		0	/* Map SFLASH drive to drive number 0 */
-#define SDCARD	    1	/* Map SD card to drive number 1 */
+#include "ff.h"
+#include "pybsd.h"
+#include "moduos.h"
 
 
 /*-----------------------------------------------------------------------*/
@@ -35,21 +35,20 @@ DSTATUS disk_status (
 	BYTE pdrv		/* Physical drive nmuber to identify the drive */
 )
 {
-	switch (pdrv) {
-	case SFLASH :
-	    return sflash_disk_status();
-#if MICROPY_HW_HAS_SDCARD
-	case SDCARD :
-	    return sd_disk_status();
-#endif
-	default:
-	    break;
-	}
-	return STA_NODISK;
+    if (pdrv == FLASH) {
+        return sflash_disk_status();
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_volume(pdrv))) {
+            if (mount_obj->writeblocks[0] == MP_OBJ_NULL) {
+                return STA_PROTECT;
+            }
+            return 0;
+        }
+    }
+    return STA_NODISK;
 }
 
-
-
 /*-----------------------------------------------------------------------*/
 /* Inidialize a Drive                                                    */
 /*-----------------------------------------------------------------------*/
@@ -58,29 +57,22 @@ DSTATUS disk_initialize (
 	BYTE pdrv				/* Physical drive nmuber to identify the drive */
 )
 {
-	DSTATUS stat = 0;
-
-	switch (pdrv) {
-	case SFLASH :
-		if (RES_OK != sflash_disk_init()) {
-		    stat = STA_NOINIT;
-		}
-		return stat;
-#if MICROPY_HW_HAS_SDCARD
-    case SDCARD :
-        if (RES_OK != sd_disk_init()) {
-            stat = STA_NOINIT;
+    if (pdrv == FLASH) {
+        if (RES_OK != sflash_disk_init()) {
+            return STA_NOINIT;
         }
-        return stat;
-#endif
-    default:
-        break;
-	}
-	return STA_NOINIT;
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_volume(pdrv))) {
+            if (mount_obj->writeblocks[0] == MP_OBJ_NULL) {
+                return STA_PROTECT;
+            }
+            return 0;
+        }
+    }
+    return STA_NODISK;
 }
 
-
-
 /*-----------------------------------------------------------------------*/
 /* Read Sector(s)                                                        */
 /*-----------------------------------------------------------------------*/
@@ -92,22 +84,25 @@ DRESULT disk_read (
 	UINT count		/* Number of sectors to read */
 )
 {
-	switch (pdrv) {
-	case SFLASH :
-	    return sflash_disk_read(buff, sector, count);
-#if MICROPY_HW_HAS_SDCARD
-    case SDCARD :
-        return sd_disk_read(buff, sector, count);
-#endif
-    default:
-        break;
-	}
-
-	return RES_PARERR;
+    if (pdrv == FLASH) {
+        return sflash_disk_read(buff, sector, count);
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_volume(pdrv))) {
+            // optimization for the built-in sd card device
+            if (mount_obj->device == (mp_obj_t)&pybsd_obj) {
+                return sd_disk_read(buff, sector, count);
+            }
+            mount_obj->readblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
+            mount_obj->readblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, buff);
+            return mp_obj_get_int(mp_call_method_n_kw(2, 0, mount_obj->readblocks));
+        }
+        // nothing mounted
+        return RES_ERROR;
+    }
+    return RES_PARERR;
 }
 
-
-
 /*-----------------------------------------------------------------------*/
 /* Write Sector(s)                                                       */
 /*-----------------------------------------------------------------------*/
@@ -120,18 +115,23 @@ DRESULT disk_write (
 	UINT count			/* Number of sectors to write */
 )
 {
-	switch (pdrv) {
-	case SFLASH :
-		return sflash_disk_write(buff, sector, count);
-#if MICROPY_HW_HAS_SDCARD
-    case SDCARD :
-        return sd_disk_write(buff, sector, count);
-#endif
-    default:
-        break;
-	}
-
-	return RES_PARERR;
+    if (pdrv == FLASH) {
+        return sflash_disk_write(buff, sector, count);
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_volume(pdrv))) {
+            // optimization for the built-in sd card device
+            if (mount_obj->device == (mp_obj_t)&pybsd_obj) {
+                return sd_disk_write(buff, sector, count);
+            }
+            mount_obj->writeblocks[2] = MP_OBJ_NEW_SMALL_INT(sector);
+            mount_obj->writeblocks[3] = mp_obj_new_bytearray_by_ref(count * 512, (void *)buff);
+            return mp_obj_get_int(mp_call_method_n_kw(2, 0, mount_obj->writeblocks));
+        }
+        // nothing mounted
+        return RES_ERROR;
+    }
+    return RES_PARERR;
 }
 #endif
 
@@ -147,41 +147,47 @@ DRESULT disk_ioctl (
 	void *buff		/* Buffer to send/receive control data */
 )
 {
-    switch (pdrv) {
-    case SFLASH:
+    if (pdrv == FLASH) {
         switch (cmd) {
         case CTRL_SYNC:
             return sflash_disk_flush();
         case GET_SECTOR_COUNT:
             *((DWORD*)buff) = SFLASH_SECTOR_COUNT;
             return RES_OK;
-            break;
         case GET_SECTOR_SIZE:
-            *((WORD*)buff) = SFLASH_SECTOR_SIZE;
+            *((DWORD*)buff) = SFLASH_SECTOR_SIZE;
             return RES_OK;
-            break;
         case GET_BLOCK_SIZE:
             *((DWORD*)buff) = 1; // high-level sector erase size in units of the block size
             return RES_OK;
         }
-        break;
-#if MICROPY_HW_HAS_SDCARD
-    case SDCARD:
-        switch (cmd) {
-        case CTRL_SYNC:
-            return RES_OK;
-        case GET_SECTOR_COUNT:
-            *(WORD*)buff = sd_disk_info.ulNofBlock;
-            break;
-        case GET_SECTOR_SIZE :
-            *(WORD*)buff = SD_SECTOR_SIZE;
-            break;
-        case GET_BLOCK_SIZE:
-            *((DWORD*)buff) = 1; // high-level sector erase size in units of the block size
-            return RES_OK;
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_volume(pdrv))) {
+            switch (cmd) {
+            case CTRL_SYNC:
+                if (mount_obj->sync[0] != MP_OBJ_NULL) {
+                    mp_call_method_n_kw(0, 0, mount_obj->sync);
+                }
+                return RES_OK;
+            case GET_SECTOR_COUNT:
+                // optimization for the built-in sd card device
+                if (mount_obj->device == (mp_obj_t)&pybsd_obj) {
+                    *((DWORD*)buff) = sd_disk_info.ulNofBlock * (sd_disk_info.ulBlockSize / 512);
+                } else {
+                    *((DWORD*)buff) = mp_obj_get_int(mp_call_method_n_kw(0, 0, mount_obj->count));
+                }
+                return RES_OK;
+            case GET_SECTOR_SIZE:
+                *((DWORD*)buff) = SD_SECTOR_SIZE;  // Sector size is fixed to 512 bytes, as with SD cards
+                return RES_OK;
+            case GET_BLOCK_SIZE:
+                *((DWORD*)buff) = 1; // high-level sector erase size in units of the block size
+                return RES_OK;
+            }
         }
-        break;
-#endif
+        // nothing mounted
+        return RES_ERROR;
     }
     return RES_PARERR;
 }
@@ -193,12 +199,7 @@ DWORD get_fattime (
 )
 {
     timeutils_struct_time_t tm;
-    uint32_t seconds;
-    uint16_t mseconds;
-
-    // Get the time from the on-chip RTC and convert it to struct_time
-    MAP_PRCMRTCGet(&seconds, &mseconds);
-    timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
+    timeutils_seconds_since_2000_to_struct_time(pyb_rtc_get_seconds(), &tm);
 
     return ((tm.tm_year - 1980) << 25) | ((tm.tm_mon) << 21)  |
             ((tm.tm_mday) << 16)       | ((tm.tm_hour) << 11) |

cc3200/fatfs/src/diskio.h

@@ -38,6 +38,8 @@ DRESULT disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
 DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
 DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
 
+/* Definitions of physical drive number for each drive */
+#define FLASH           0   /* Map FLASH drive to drive number 0 */
 
 /* Disk Status Bits (DSTATUS) */
 

cc3200/fatfs/src/drivers/sd_diskio.c

@@ -279,8 +279,6 @@ DSTATUS sd_disk_init (void) {
                 sd_disk_info.bStatus = 0;
             }
         }
-        // Set card rd/wr block len
-        MAP_SDHostBlockSizeSet(SDHOST_BASE, SD_SECTOR_SIZE);
     }
 
     return sd_disk_info.bStatus;
@@ -302,28 +300,6 @@ void sd_disk_deinit (void) {
     sd_disk_info.usRCA = 0;
 }
 
-//*****************************************************************************
-//
-//! Gets the disk status.
-//!
-//! This function gets the current status of the drive.
-//!
-//! \return Returns the current status of the specified drive
-//
-//*****************************************************************************
-DSTATUS sd_disk_status (void) {
-    return sd_disk_info.bStatus;
-}
-
-//*****************************************************************************
-//
-//! Returns wether the sd card is ready to be accessed or not
-//
-//*****************************************************************************
-bool sd_disk_ready (void) {
-    return (!sd_disk_info.bStatus);
-}
-
 //*****************************************************************************
 //
 //! Reads sector(s) from the disk drive.
@@ -376,6 +352,7 @@ DRESULT sd_disk_read (BYTE* pBuffer, DWORD ulSectorNumber, UINT SectorCount) {
                     pBuffer += 4;
                 }
                 CardSendCmd(CMD_STOP_TRANS, 0);
+                while (!(MAP_SDHostIntStatus(SDHOST_BASE) & SDHOST_INT_TC));
                 Res = RES_OK;
             }
         }
@@ -395,61 +372,62 @@ DRESULT sd_disk_read (BYTE* pBuffer, DWORD ulSectorNumber, UINT SectorCount) {
 //
 //*****************************************************************************
 DRESULT sd_disk_write (const BYTE* pBuffer, DWORD ulSectorNumber, UINT SectorCount) {
-  DRESULT Res = RES_ERROR;
-  unsigned long ulSize;
+    DRESULT Res = RES_ERROR;
+    unsigned long ulSize;
 
-  if (SectorCount > 0) {
-      // Return if disk not initialized
-      if (sd_disk_info.bStatus & STA_NOINIT) {
-          return RES_NOTRDY;
-      }
+    if (SectorCount > 0) {
+        // Return if disk not initialized
+        if (sd_disk_info.bStatus & STA_NOINIT) {
+            return RES_NOTRDY;
+        }
 
-      // SDSC uses linear address, SDHC uses block address
-      if (sd_disk_info.ulCapClass == CARD_CAP_CLASS_SDSC) {
-          ulSectorNumber = ulSectorNumber * SD_SECTOR_SIZE;
-      }
+        // SDSC uses linear address, SDHC uses block address
+        if (sd_disk_info.ulCapClass == CARD_CAP_CLASS_SDSC) {
+            ulSectorNumber = ulSectorNumber * SD_SECTOR_SIZE;
+        }
 
-      // Set the block count
-      MAP_SDHostBlockCountSet(SDHOST_BASE, SectorCount);
+        // Set the block count
+        MAP_SDHostBlockCountSet(SDHOST_BASE, SectorCount);
 
-      // Compute the number of words
-      ulSize = (SD_SECTOR_SIZE * SectorCount) / 4;
+        // Compute the number of words
+        ulSize = (SD_SECTOR_SIZE * SectorCount) / 4;
 
-      // Check if 1 block or multi block transfer
-      if (SectorCount == 1) {
-          // Send single block write command
-          if (CardSendCmd(CMD_WRITE_SINGLE_BLK, ulSectorNumber) == 0) {
-              // Write the data
-              while (ulSize--) {
-                  MAP_SDHostDataWrite (SDHOST_BASE, (*(unsigned long *)pBuffer));
-                  pBuffer += 4;
-              }
-              // Wait for data transfer complete
-              while (!(MAP_SDHostIntStatus(SDHOST_BASE) & SDHOST_INT_TC));
-              Res = RES_OK;
-          }
-      }
-      else {
-          // Set the card write block count
-          if (sd_disk_info.ucCardType == CARD_TYPE_SDCARD) {
-              CardSendCmd(CMD_APP_CMD,sd_disk_info.usRCA << 16);
-              CardSendCmd(CMD_SET_BLK_CNT, SectorCount);
-          }
+        // Check if 1 block or multi block transfer
+        if (SectorCount == 1) {
+            // Send single block write command
+            if (CardSendCmd(CMD_WRITE_SINGLE_BLK, ulSectorNumber) == 0) {
+                // Write the data
+                while (ulSize--) {
+                    MAP_SDHostDataWrite (SDHOST_BASE, (*(unsigned long *)pBuffer));
+                    pBuffer += 4;
+                }
+                // Wait for data transfer complete
+                while (!(MAP_SDHostIntStatus(SDHOST_BASE) & SDHOST_INT_TC));
+                Res = RES_OK;
+            }
+        }
+        else {
+            // Set the card write block count
+            if (sd_disk_info.ucCardType == CARD_TYPE_SDCARD) {
+                CardSendCmd(CMD_APP_CMD,sd_disk_info.usRCA << 16);
+                CardSendCmd(CMD_SET_BLK_CNT, SectorCount);
+            }
 
-          // Send multi block write command
-          if (CardSendCmd(CMD_WRITE_MULTI_BLK, ulSectorNumber) == 0) {
-              // Write the data buffer
-              while (ulSize--) {
-                  MAP_SDHostDataWrite(SDHOST_BASE, (*(unsigned long *)pBuffer));
-                  pBuffer += 4;
-              }
-              // Wait for transfer complete
-              while (!(MAP_SDHostIntStatus(SDHOST_BASE) & SDHOST_INT_TC));
-              CardSendCmd(CMD_STOP_TRANS, 0);
-              Res = RES_OK;
-          }
-      }
-  }
+            // Send multi block write command
+            if (CardSendCmd(CMD_WRITE_MULTI_BLK, ulSectorNumber) == 0) {
+                // Write the data buffer
+                while (ulSize--) {
+                    MAP_SDHostDataWrite(SDHOST_BASE, (*(unsigned long *)pBuffer));
+                    pBuffer += 4;
+                }
+                // Wait for transfer complete
+                while (!(MAP_SDHostIntStatus(SDHOST_BASE) & SDHOST_INT_TC));
+                CardSendCmd(CMD_STOP_TRANS, 0);
+                while (!(MAP_SDHostIntStatus(SDHOST_BASE) & SDHOST_INT_TC));
+                Res = RES_OK;
+            }
+        }
+    }
 
-  return Res;
+    return Res;
 }

cc3200/fatfs/src/drivers/sd_diskio.h

@@ -21,8 +21,6 @@ extern DiskInfo_t sd_disk_info;
 
 DSTATUS sd_disk_init (void);
 void sd_disk_deinit (void);
-DSTATUS sd_disk_status (void);
-bool sd_disk_ready (void);
 DRESULT sd_disk_read (BYTE* pBuffer, DWORD ulSectorNumber, UINT bSectorCount);
 DRESULT sd_disk_write (const BYTE* pBuffer, DWORD ulSectorNumber, UINT bSectorCount);
 

cc3200/fatfs/src/drivers/sflash_diskio.c

@@ -4,10 +4,12 @@
 
 #include "py/mpconfig.h"
 #include MICROPY_HAL_H
+#include "py/obj.h"
 #include "simplelink.h"
 #include "diskio.h"
 #include "sflash_diskio.h"
 #include "debug.h"
+#include "modnetwork.h"
 #include "modwlan.h"
 
 #define SFLASH_TIMEOUT_MAX_MS               5500
@@ -52,13 +54,25 @@ DRESULT sflash_disk_init (void) {
         // Allocate space for the block cache
         ASSERT ((sflash_block_cache = mem_Malloc(SFLASH_BLOCK_SIZE)) != NULL);
         sflash_init_done = true;
+        sflash_prblock = UINT32_MAX;
+        sflash_cache_is_dirty = false;
 
-        // Proceed to format the memory if not done yet
+        // In order too speed up booting, check the last block, if exists, then
+        // it means that the file system has been already created
+        print_block_name (SFLASH_BLOCK_COUNT - 1);
+        sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
+        if (!sl_FsGetInfo(sflash_block_name, 0, &FsFileInfo)) {
+            sl_LockObjUnlock (&wlan_LockObj);
+            return RES_OK;
+        }
+        sl_LockObjUnlock (&wlan_LockObj);
+
+        // Proceed to format the memory
         for (int i = 0; i < SFLASH_BLOCK_COUNT; i++) {
             print_block_name (i);
             sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
             // Create the block file if it doesn't exist
-            if (sl_FsGetInfo(sflash_block_name, 0, &FsFileInfo) < 0) {
+            if (sl_FsGetInfo(sflash_block_name, 0, &FsFileInfo) != 0) {
                 if (!sl_FsOpen(sflash_block_name, FS_MODE_OPEN_CREATE(SFLASH_BLOCK_SIZE, 0), NULL, &fileHandle)) {
                     sl_FsClose(fileHandle, NULL, NULL, 0);
                     sl_LockObjUnlock (&wlan_LockObj);
@@ -75,8 +89,6 @@ DRESULT sflash_disk_init (void) {
             }
             sl_LockObjUnlock (&wlan_LockObj);
         }
-        sflash_prblock = UINT32_MAX;
-        sflash_cache_is_dirty = false;
     }
     return RES_OK;
 }

cc3200/fatfs/src/ffconf.c

@@ -26,11 +26,11 @@
 
 #include <string.h>
 
-#include "py/mpconfig.h"
-#include "py/misc.h"
+#include "py/mpstate.h"
 #include "ff.h"
 #include "ffconf.h"
 #include "diskio.h"
+#include "moduos.h"
 
 #if _FS_RPATH
 extern BYTE ff_CurrVol;
@@ -65,31 +65,29 @@ int ff_get_ldnumber (const TCHAR **path) {
     }
 
     if (check_path(path, "/flash", 6)) {
-        return 0;
+        return FLASH;
     }
-#if MICROPY_HW_HAS_SDCARD
-    else if (check_path(path, "/sd", 3)) {
-        return 1;
-    }
-#endif
     else {
-        return -1;
+        for (mp_uint_t i = 0; i < MP_STATE_PORT(mount_obj_list).len; i++) {
+            os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[i]));
+            if (check_path(path, mount_obj->path, mount_obj->pathlen)) {
+                return mount_obj->vol;
+            }
+        }
     }
+
+    return -1;
 }
 
 void ff_get_volname(BYTE vol, TCHAR **dest) {
-#if MICROPY_HW_HAS_SDCARD
-    if (vol == 0)
-#endif
-    {
+    if (vol == FLASH) {
         memcpy(*dest, "/flash", 6);
-        *dest += 7;
+        *dest += 6;
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_volume(vol))) {
+            memcpy(*dest, mount_obj->path, mount_obj->pathlen);
+            *dest += mount_obj->pathlen;
+        }
     }
-#if MICROPY_HW_HAS_SDCARD
-    else
-    {
-        memcpy(*dest, "/sd", 3);
-        *dest += 3;
-    }
-#endif
 }

cc3200/ftp/ftp.c

@@ -28,7 +28,7 @@
 #include <ctype.h>
 #include "std.h"
 
-#include "py/mpconfig.h"
+#include "py/mpstate.h"
 #include MICROPY_HAL_H
 #include "py/obj.h"
 #include "inc/hw_types.h"
@@ -39,17 +39,17 @@
 #include "pybrtc.h"
 #include "ftp.h"
 #include "simplelink.h"
+#include "modnetwork.h"
 #include "modwlan.h"
+#include "modusocket.h"
 #include "debug.h"
 #include "serverstask.h"
 #include "ff.h"
 #include "fifo.h"
 #include "socketfifo.h"
-#include "diskio.h"
-#include "sd_diskio.h"
 #include "updater.h"
 #include "timeutils.h"
-
+#include "moduos.h"
 
 /******************************************************************************
  DEFINE PRIVATE CONSTANTS
@@ -67,7 +67,6 @@
 #define FTP_UNIX_TIME_20150101              1420070400
 #define FTP_UNIX_SECONDS_180_DAYS           15552000
 #define FTP_DATA_TIMEOUT_MS                 5000            // 5 seconds
-#define FTP_CMD_TIMEOUT_MS                  120000          // 2 minutes
 #define FTP_SOCKETFIFO_ELEMENTS_MAX         4
 #define FTP_CYCLE_TIME_MS                   (SERVERS_CYCLE_TIME_MS * 2)
 
@@ -94,16 +93,12 @@ typedef enum {
     E_FTP_STE_SUB_DISCONNECTED = 0,
     E_FTP_STE_SUB_LISTEN_FOR_DATA,
     E_FTP_STE_SUB_DATA_CONNECTED
-} ftp_data_substate_t;
-
-typedef union {
-    ftp_data_substate_t data;
 } ftp_substate_t;
 
 typedef struct {
     bool            uservalid : 1;
     bool            passvalid : 1;
-}ftp_loggin_t;
+} ftp_loggin_t;
 
 typedef enum {
     E_FTP_NOTHING_OPEN = 0,
@@ -129,25 +124,26 @@ typedef struct {
     int16_t             c_sd;
     int16_t             d_sd;
     int16_t             dtimeout;
-    ftp_state_t         state;
-    ftp_substate_t      substate;
+    uint16_t            volcount;
+    uint8_t             state;
+    uint8_t             substate;
     uint8_t             txRetries;
     uint8_t             logginRetries;
     ftp_loggin_t        loggin;
     uint8_t             e_open;
     bool                closechild;
     bool                enabled;
-    bool                swupdating;
-
+    bool                special_file;
+    bool                listroot;
 } ftp_data_t;
 
 typedef struct {
     char * cmd;
-}ftp_cmd_t;
+} ftp_cmd_t;
 
 typedef struct {
     char * month;
-}ftp_month_t;
+} ftp_month_t;
 
 typedef enum {
     E_FTP_CMD_NOT_SUPPORTED = -1,
@@ -174,7 +170,7 @@ typedef enum {
     E_FTP_CMD_NOOP,
     E_FTP_CMD_QUIT,
     E_FTP_NUM_FTP_CMDS
-}ftp_cmd_index_t;
+} ftp_cmd_index_t;
 
 /******************************************************************************
  DECLARE PRIVATE DATA
@@ -194,7 +190,7 @@ static const ftp_month_t ftp_month[] = { { "Jan" }, { "Feb" }, { "Mar" }, { "Apr
                                          { "May" }, { "Jun" }, { "Jul" }, { "Ago" },
                                          { "Sep" }, { "Oct" }, { "Nov" }, { "Dec" } };
 
-static SocketFifoElement_t *ftp_fifoelements;
+static SocketFifoElement_t ftp_fifoelements[FTP_SOCKETFIFO_ELEMENTS_MAX];
 static FIFO_t ftp_socketfifo;
 
 /******************************************************************************
@@ -219,12 +215,11 @@ static int ftp_print_eplf_drive (char *dest, uint32_t destsize, char *name);
 static bool ftp_open_file (const char *path, int mode);
 static ftp_result_t ftp_read_file (char *filebuf, uint32_t desiredsize, uint32_t *actualsize);
 static ftp_result_t ftp_write_file (char *filebuf, uint32_t size);
-static ftp_result_t ftp_open_dir_for_listing (const char *path, char *list, uint32_t maxlistsize, uint32_t *listsize);
+static ftp_result_t ftp_open_dir_for_listing (const char *path);
 static ftp_result_t ftp_list_dir (char *list, uint32_t maxlistsize, uint32_t *listsize);
 static void ftp_open_child (char *pwd, char *dir);
 static void ftp_close_child (char *pwd);
 static void ftp_return_to_previous_path (char *pwd, char *dir);
-static void ftp_reset (void);
 
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
@@ -235,7 +230,6 @@ void ftp_init (void) {
     ASSERT ((ftp_path = mem_Malloc(FTP_MAX_PARAM_SIZE)) != NULL);
     ASSERT ((ftp_scratch_buffer = mem_Malloc(FTP_MAX_PARAM_SIZE)) != NULL);
     ASSERT ((ftp_cmd_buffer = mem_Malloc(FTP_MAX_PARAM_SIZE + FTP_CMD_SIZE_MAX)) != NULL);
-    ASSERT ((ftp_fifoelements = mem_Malloc(FTP_SOCKETFIFO_ELEMENTS_MAX * sizeof(SocketFifoElement_t))) != NULL);
     SOCKETFIFO_Init (&ftp_socketfifo, (void *)ftp_fifoelements, FTP_SOCKETFIFO_ELEMENTS_MAX);
     ftp_data.c_sd  = -1;
     ftp_data.d_sd  = -1;
@@ -243,8 +237,9 @@ void ftp_init (void) {
     ftp_data.ld_sd = -1;
     ftp_data.e_open = E_FTP_NOTHING_OPEN;
     ftp_data.state = E_FTP_STE_DISABLED;
-    ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
-    ftp_data.swupdating = false;
+    ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
+    ftp_data.special_file = false;
+    ftp_data.volcount = 0;
 }
 
 void ftp_run (void) {
@@ -253,12 +248,12 @@ void ftp_run (void) {
             ftp_wait_for_enabled();
             break;
         case E_FTP_STE_START:
-            if (ftp_create_listening_socket(&ftp_data.lc_sd, FTP_CMD_PORT, FTP_CMD_CLIENTS_MAX )) {
+            if (wlan_is_connected() && ftp_create_listening_socket(&ftp_data.lc_sd, FTP_CMD_PORT, FTP_CMD_CLIENTS_MAX)) {
                 ftp_data.state = E_FTP_STE_READY;
             }
             break;
         case E_FTP_STE_READY:
-            if (ftp_data.c_sd < 0 && ftp_data.substate.data == E_FTP_STE_SUB_DISCONNECTED) {
+            if (ftp_data.c_sd < 0 && ftp_data.substate == E_FTP_STE_SUB_DISCONNECTED) {
                 if (E_FTP_RESULT_OK == ftp_wait_for_connection(ftp_data.lc_sd, &ftp_data.c_sd)) {
                     ftp_data.txRetries = 0;
                     ftp_data.logginRetries = 0;
@@ -271,7 +266,7 @@ void ftp_run (void) {
                 }
             }
             if (SOCKETFIFO_IsEmpty()) {
-                if (ftp_data.c_sd > 0 && ftp_data.substate.data != E_FTP_STE_SUB_LISTEN_FOR_DATA) {
+                if (ftp_data.c_sd > 0 && ftp_data.substate != E_FTP_STE_SUB_LISTEN_FOR_DATA) {
                     ftp_process_cmd();
                     if (ftp_data.state != E_FTP_STE_READY) {
                         break;
@@ -288,8 +283,7 @@ void ftp_run (void) {
                 ftp_list_dir((char *)ftp_data.dBuffer, FTP_BUFFER_SIZE, &listsize);
                 if (listsize > 0) {
                     ftp_send_data(listsize);
-                }
-                else {
+                } else {
                     ftp_send_reply(226, NULL);
                     ftp_data.state = E_FTP_STE_END_TRANSFER;
                 }
@@ -326,7 +320,7 @@ void ftp_run (void) {
                     ftp_data.dtimeout = 0;
                     ftp_data.ctimeout = 0;
                     // its a software update
-                    if (ftp_data.swupdating) {
+                    if (ftp_data.special_file) {
                         if (updater_write(ftp_data.dBuffer, len)) {
                             break;
                         }
@@ -346,8 +340,8 @@ void ftp_run (void) {
                     }
                 }
                 else {
-                    if (ftp_data.swupdating) {
-                        ftp_data.swupdating = false;
+                    if (ftp_data.special_file) {
+                        ftp_data.special_file = false;
                         updater_finnish();
                     }
                     ftp_close_files();
@@ -360,19 +354,19 @@ void ftp_run (void) {
             break;
     }
 
-    switch (ftp_data.substate.data) {
+    switch (ftp_data.substate) {
     case E_FTP_STE_SUB_DISCONNECTED:
         break;
     case E_FTP_STE_SUB_LISTEN_FOR_DATA:
         if (E_FTP_RESULT_OK == ftp_wait_for_connection(ftp_data.ld_sd, &ftp_data.d_sd)) {
             ftp_data.dtimeout = 0;
-            ftp_data.substate.data = E_FTP_STE_SUB_DATA_CONNECTED;
+            ftp_data.substate = E_FTP_STE_SUB_DATA_CONNECTED;
         }
         else if (ftp_data.dtimeout++ > FTP_DATA_TIMEOUT_MS / FTP_CYCLE_TIME_MS) {
             ftp_data.dtimeout = 0;
             // close the listening socket
             servers_close_socket(&ftp_data.ld_sd);
-            ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
+            ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
         }
         break;
     case E_FTP_STE_SUB_DATA_CONNECTED:
@@ -381,7 +375,7 @@ void ftp_run (void) {
             servers_close_socket(&ftp_data.ld_sd);
             servers_close_socket(&ftp_data.d_sd);
             ftp_close_filesystem_on_error ();
-            ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
+            ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
         }
         break;
     default:
@@ -393,7 +387,7 @@ void ftp_run (void) {
 
     // check the state of the data sockets
     if (ftp_data.d_sd < 0 && (ftp_data.state > E_FTP_STE_READY)) {
-        ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
+        ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
         ftp_data.state = E_FTP_STE_READY;
     }
 }
@@ -408,6 +402,17 @@ void ftp_disable (void) {
     ftp_data.state = E_FTP_STE_DISABLED;
 }
 
+void ftp_reset (void) {
+    // close all connections and start all over again
+    servers_close_socket(&ftp_data.lc_sd);
+    servers_close_socket(&ftp_data.ld_sd);
+    ftp_close_cmd_data();
+    ftp_data.state = E_FTP_STE_START;
+    ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
+    ftp_data.volcount = 0;
+    SOCKETFIFO_Flush();
+}
+
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/
@@ -429,21 +434,27 @@ static bool ftp_create_listening_socket (_i16 *sd, _u16 port, _u8 backlog) {
     _sd = *sd;
 
     if (_sd > 0) {
+        // add the new socket to the network administration
+        modusocket_socket_add(_sd, false);
+
         // Enable non-blocking mode
         nonBlockingOption.NonblockingEnabled = 1;
-        ASSERT (sl_SetSockOpt(_sd, SOL_SOCKET, SL_SO_NONBLOCKING, &nonBlockingOption, sizeof(nonBlockingOption)) == SL_SOC_OK);
+        ASSERT ((result = sl_SetSockOpt(_sd, SOL_SOCKET, SL_SO_NONBLOCKING, &nonBlockingOption, sizeof(nonBlockingOption))) == SL_SOC_OK);
 
         // Bind the socket to a port number
         sServerAddress.sin_family = AF_INET;
         sServerAddress.sin_addr.s_addr = INADDR_ANY;
         sServerAddress.sin_port = htons(port);
 
-        ASSERT (sl_Bind(_sd, (const SlSockAddr_t *)&sServerAddress, sizeof(sServerAddress)) == SL_SOC_OK);
+        ASSERT ((result |= sl_Bind(_sd, (const SlSockAddr_t *)&sServerAddress, sizeof(sServerAddress))) == SL_SOC_OK);
 
         // Start listening
-        ASSERT ((result = sl_Listen (_sd, backlog)) == SL_SOC_OK);
+        ASSERT ((result |= sl_Listen (_sd, backlog)) == SL_SOC_OK);
 
-        return (result == SL_SOC_OK) ? true : false;
+        if (result == SL_SOC_OK) {
+            return true;
+        }
+        servers_close_socket(sd);
     }
     return false;
 }
@@ -464,6 +475,9 @@ static ftp_result_t ftp_wait_for_connection (_i16 l_sd, _i16 *n_sd) {
         return E_FTP_RESULT_FAILED;
     }
 
+    // add the new socket to the network administration
+    modusocket_socket_add(_sd, false);
+
     // client connected, so go on
     return E_FTP_RESULT_OK;
 }
@@ -539,7 +553,7 @@ static void ftp_send_from_fifo (void) {
                         servers_close_socket(&ftp_data.ld_sd);
                         // this one is the command socket
                         servers_close_socket(fifoelement.sd);
-                        ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
+                        ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
                     }
                     ftp_close_filesystem_on_error();
                 }
@@ -560,8 +574,8 @@ static void ftp_send_from_fifo (void) {
         // close the listening and the data sockets
         servers_close_socket(&ftp_data.ld_sd);
         servers_close_socket(&ftp_data.d_sd);
-        if (ftp_data.swupdating) {
-            ftp_data.swupdating = false;
+        if (ftp_data.special_file) {
+            ftp_data.special_file = false;
         }
     }
 }
@@ -589,7 +603,6 @@ static void ftp_process_cmd (void) {
     _i32 len;
     char *bufptr = (char *)ftp_cmd_buffer;
     ftp_result_t result;
-    uint32_t listsize;
     FRESULT fres;
     FILINFO fno;
 #if _USE_LFN
@@ -691,7 +704,7 @@ static void ftp_process_cmd (void) {
             {
                 // some servers (e.g. google chrome) send PASV several times very quickly
                 servers_close_socket(&ftp_data.d_sd);
-                ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
+                ftp_data.substate = E_FTP_STE_SUB_DISCONNECTED;
                 bool socketcreated = true;
                 if (ftp_data.ld_sd < 0) {
                     socketcreated = ftp_create_listening_socket(&ftp_data.ld_sd, FTP_PASIVE_DATA_PORT, FTP_DATA_CLIENTS_MAX);
@@ -703,7 +716,7 @@ static void ftp_process_cmd (void) {
                     wlan_get_ip(&ip);
                     snprintf((char *)ftp_data.dBuffer, FTP_BUFFER_SIZE, "(%u,%u,%u,%u,%u,%u)",
                              pip[3], pip[2], pip[1], pip[0], (FTP_PASIVE_DATA_PORT >> 8), (FTP_PASIVE_DATA_PORT & 0xFF));
-                    ftp_data.substate.data = E_FTP_STE_SUB_LISTEN_FOR_DATA;
+                    ftp_data.substate = E_FTP_STE_SUB_LISTEN_FOR_DATA;
                     ftp_send_reply(227, (char *)ftp_data.dBuffer);
                 }
                 else {
@@ -712,13 +725,7 @@ static void ftp_process_cmd (void) {
             }
             break;
         case E_FTP_CMD_LIST:
-            if ((result = ftp_open_dir_for_listing(ftp_path, (char *)ftp_data.dBuffer, FTP_BUFFER_SIZE, &listsize)) == E_FTP_RESULT_OK) {
-                ftp_data.state = E_FTP_STE_END_TRANSFER;
-                ftp_send_reply(150, NULL);
-                ftp_send_data(listsize);
-                ftp_send_reply(226, NULL);
-            }
-            else if (result == E_FTP_RESULT_CONTINUE) {
+            if (ftp_open_dir_for_listing(ftp_path) == E_FTP_RESULT_CONTINUE) {
                 ftp_data.state = E_FTP_STE_CONTINUE_LISTING;
                 ftp_send_reply(150, NULL);
             }
@@ -741,15 +748,14 @@ static void ftp_process_cmd (void) {
             ftp_get_param_and_open_child (&bufptr);
             // first check if a software update is being requested
             if (updater_check_path (ftp_path)) {
-                // start by erasing the previous status file
-                // must be done before starting the updater
-                f_unlink(ftp_path);
                 if (updater_start()) {
-                    ftp_data.swupdating = true;
+                    ftp_data.special_file = true;
                     ftp_data.state = E_FTP_STE_CONTINUE_FILE_RX;
                     ftp_send_reply(150, NULL);
                 }
                 else {
+                    // to unlock the updater
+                    updater_finnish();
                     ftp_data.state = E_FTP_STE_END_TRANSFER;
                     ftp_send_reply(550, NULL);
                 }
@@ -822,7 +828,7 @@ static void ftp_process_cmd (void) {
         }
     }
     else if (result == E_FTP_RESULT_CONTINUE) {
-        if (ftp_data.ctimeout++ > (FTP_CMD_TIMEOUT_MS / FTP_CYCLE_TIME_MS)) {
+        if (ftp_data.ctimeout++ > (servers_get_timeout() / FTP_CYCLE_TIME_MS)) {
             ftp_send_reply(221, NULL);
         }
     }
@@ -843,9 +849,9 @@ static void ftp_close_files (void) {
 
 static void ftp_close_filesystem_on_error (void) {
     ftp_close_files();
-    if (ftp_data.swupdating) {
+    if (ftp_data.special_file) {
         updater_finnish ();
-        ftp_data.swupdating = false;
+        ftp_data.special_file = false;
     }
 }
 
@@ -881,7 +887,6 @@ static int ftp_print_eplf_item (char *dest, uint32_t destsize, FILINFO *fno) {
 
     char *type = (fno->fattrib & AM_DIR) ? "d" : "-";
     uint32_t tseconds;
-    uint16_t mseconds;
     uint mindex = (((fno->fdate >> 5) & 0x0f) > 0) ? (((fno->fdate >> 5) & 0x0f) - 1) : 0;
     uint day = ((fno->fdate & 0x1f) > 0) ? (fno->fdate & 0x1f) : 1;
     uint fseconds = timeutils_seconds_since_2000(1980 + ((fno->fdate >> 9) & 0x7f),
@@ -890,7 +895,7 @@ static int ftp_print_eplf_item (char *dest, uint32_t destsize, FILINFO *fno) {
                                                         (fno->ftime >> 11) & 0x1f,
                                                         (fno->ftime >> 5) & 0x3f,
                                                         2 * (fno->ftime & 0x1f));
-    MAP_PRCMRTCGet(&tseconds, &mseconds);
+    tseconds = pyb_rtc_get_seconds();
     if (FTP_UNIX_SECONDS_180_DAYS < tseconds - fseconds) {
         return snprintf(dest, destsize, "%srw-rw-r--   1 root  root %9u %s %2u %5u %s\r\n",
                         type, (_u32)fno->fsize, ftp_month[mindex].month, day,
@@ -914,12 +919,11 @@ static int ftp_print_eplf_item (char *dest, uint32_t destsize, FILINFO *fno) {
 static int ftp_print_eplf_drive (char *dest, uint32_t destsize, char *name) {
     timeutils_struct_time_t tm;
     uint32_t tseconds;
-    uint16_t mseconds;
     char *type = "d";
 
     timeutils_seconds_since_2000_to_struct_time((FTP_UNIX_TIME_20150101 - FTP_UNIX_TIME_20000101), &tm);
 
-    MAP_PRCMRTCGet(&tseconds, &mseconds);
+    tseconds = pyb_rtc_get_seconds();
     if (FTP_UNIX_SECONDS_180_DAYS < tseconds - (FTP_UNIX_TIME_20150101 - FTP_UNIX_TIME_20000101)) {
         return snprintf(dest, destsize, "%srw-rw-r--   1 root  root %9u %s %2u %5u %s\r\n",
                         type, 0, ftp_month[(tm.tm_mon - 1)].month, tm.tm_mday, tm.tm_year, name);
@@ -967,32 +971,25 @@ static ftp_result_t ftp_write_file (char *filebuf, uint32_t size) {
     return result;
 }
 
-static ftp_result_t ftp_open_dir_for_listing (const char *path, char *list, uint32_t maxlistsize, uint32_t *listsize) {
-    uint next = 0;
-    // "hack" to list root directory
+static ftp_result_t ftp_open_dir_for_listing (const char *path) {
+    // "hack" to detect the root directory
     if (path[0] == '/' && path[1] == '\0') {
-        next += ftp_print_eplf_drive((list + next), (maxlistsize - next), "flash");
-#if MICROPY_HW_HAS_SDCARD
-        if (sd_disk_ready()) {
-            next += ftp_print_eplf_drive((list + next), (maxlistsize - next), "sd");
+        ftp_data.listroot = true;
+    } else {
+        FRESULT res;
+        res = f_opendir(&ftp_data.dp, path);                       /* Open the directory */
+        if (res != FR_OK) {
+            return E_FTP_RESULT_FAILED;
         }
-#endif
-        *listsize = next;
-        return E_FTP_RESULT_OK;
+        ftp_data.e_open = E_FTP_DIR_OPEN;
+        ftp_data.listroot = false;
     }
-
-    FRESULT res;
-    res = f_opendir(&ftp_data.dp, path);                       /* Open the directory */
-    if (res != FR_OK) {
-        return E_FTP_RESULT_FAILED;
-    }
-    ftp_data.e_open = E_FTP_DIR_OPEN;
     return E_FTP_RESULT_CONTINUE;
 }
 
 static ftp_result_t ftp_list_dir (char *list, uint32_t maxlistsize, uint32_t *listsize) {
     uint next = 0;
-    uint count = 0;
+    uint listcount = 0;
     FRESULT res;
     ftp_result_t result = E_FTP_RESULT_CONTINUE;
     FILINFO fno;
@@ -1001,22 +998,40 @@ static ftp_result_t ftp_list_dir (char *list, uint32_t maxlistsize, uint32_t *li
     fno.lfsize = _MAX_LFN;
 
     // read up to 2 directory items
-    while (count < 2) {
+    while (listcount < 2) {
 #else
     // read up to 4 directory items
-    while (count < 4) {
+    while (listcount < 4) {
 #endif
-        res = f_readdir(&ftp_data.dp, &fno);                                                       /* Read a directory item */
-        if (res != FR_OK || fno.fname[0] == 0) {
-            result = E_FTP_RESULT_OK;
-            break;                                                                                 /* Break on error or end of dp */
-        }
-        if (fno.fname[0] == '.' && fno.fname[1] == 0) continue;                                    /* Ignore . entry */
-        if (fno.fname[0] == '.' && fno.fname[1] == '.' && fno.fname[2] == 0) continue;             /* Ignore .. entry */
+        if (ftp_data.listroot) {
+            // root directory "hack"
+            if (0 == ftp_data.volcount) {
+                next += ftp_print_eplf_drive((list + next), (maxlistsize - next), "flash");
+            } else if (ftp_data.volcount <= MP_STATE_PORT(mount_obj_list).len) {
+                os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[(ftp_data.volcount - 1)]));
+                next += ftp_print_eplf_drive((list + next), (maxlistsize - next), (char *)&mount_obj->path[1]);
+            } else {
+                if (!next) {
+                    // no volume found this time, we are done
+                    ftp_data.volcount = 0;
+                }
+                break;
+            }
+            ftp_data.volcount++;
+        } else {
+            // a "normal" directory
+            res = f_readdir(&ftp_data.dp, &fno);                                                       /* Read a directory item */
+            if (res != FR_OK || fno.fname[0] == 0) {
+                result = E_FTP_RESULT_OK;
+                break;                                                                                 /* Break on error or end of dp */
+            }
+            if (fno.fname[0] == '.' && fno.fname[1] == 0) continue;                                    /* Ignore . entry */
+            if (fno.fname[0] == '.' && fno.fname[1] == '.' && fno.fname[2] == 0) continue;             /* Ignore .. entry */
 
-        // add the entry to the list
-        next += ftp_print_eplf_item((list + next), (maxlistsize - next), &fno);
-        count++;
+            // add the entry to the list
+            next += ftp_print_eplf_item((list + next), (maxlistsize - next), &fno);
+        }
+        listcount++;
     }
     if (result == E_FTP_RESULT_OK) {
         ftp_close_files();
@@ -1031,8 +1046,7 @@ static ftp_result_t ftp_list_dir (char *list, uint32_t maxlistsize, uint32_t *li
 static void ftp_open_child (char *pwd, char *dir) {
     if (dir[0] == '/') {
         strcpy (pwd, dir);
-    }
-    else {
+    } else {
         if (strlen(pwd) > 1) {
             strcat (pwd, "/");
         }
@@ -1052,8 +1066,7 @@ static void ftp_close_child (char *pwd) {
     }
     if (len == 0) {
         strcpy (pwd, "/");
-    }
-    else {
+    } else {
         pwd[len] = '\0';
     }
 }
@@ -1066,19 +1079,9 @@ static void ftp_return_to_previous_path (char *pwd, char *dir) {
     else {
         if (newlen == 0) {
             strcpy (pwd, "/");
-        }
-        else {
+        } else {
             pwd[newlen] = '\0';
         }
     }
 }
 
-static void ftp_reset (void) {
-    // close all connections and start all over again
-    servers_close_socket(&ftp_data.lc_sd);
-    servers_close_socket(&ftp_data.ld_sd);
-    ftp_close_cmd_data();
-    ftp_data.state = E_FTP_STE_START;
-    ftp_data.substate.data = E_FTP_STE_SUB_DISCONNECTED;
-    SOCKETFIFO_Flush();
-}

cc3200/ftp/ftp.h

@@ -34,5 +34,6 @@ extern void ftp_init (void);
 extern void ftp_run (void);
 extern void ftp_enable (void);
 extern void ftp_disable (void);
+extern void ftp_reset (void);
 
 #endif /* FTP_H_ */

cc3200/ftp/updater.c

@@ -1,14 +1,43 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 #include <stdint.h>
 #include <stdbool.h>
 
 #include "py/mpconfig.h"
 #include MICROPY_HAL_H
+#include "py/obj.h"
 #include "simplelink.h"
 #include "flc.h"
 #include "updater.h"
 #include "shamd5.h"
+#include "modnetwork.h"
 #include "modwlan.h"
 #include "debug.h"
+#include "osi.h"
 
 /******************************************************************************
  DEFINE PRIVATE CONSTANTS
@@ -16,6 +45,9 @@
 #define UPDATER_IMG_PATH            "/flash/sys/mcuimg.bin"
 #define UPDATER_SRVPACK_PATH        "/flash/sys/servicepack.ucf"
 #define UPDATER_SIGN_PATH           "/flash/sys/servicepack.sig"
+#define UPDATER_CA_PATH             "/flash/cert/ca.pem"
+#define UPDATER_CERT_PATH           "/flash/cert/cert.pem"
+#define UPDATER_KEY_PATH            "/flash/cert/private.key"
 
 /******************************************************************************
  DEFINE TYPES
@@ -30,33 +62,65 @@ typedef struct {
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-static updater_data_t updater_data;
+static updater_data_t updater_data = { .path = NULL, .fhandle = -1, .fsize = 0, .foffset = 0 };
+static OsiLockObj_t updater_LockObj;
+static sBootInfo_t sBootInfo;
 
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
  ******************************************************************************/
+__attribute__ ((section (".boot")))
+void updater_pre_init (void) {
+    // create the updater lock
+    ASSERT(OSI_OK == sl_LockObjCreate(&updater_LockObj, "UpdaterLock"));
+}
+
 bool updater_check_path (void *path) {
+    sl_LockObjLock (&updater_LockObj, SL_OS_WAIT_FOREVER);
     if (!strcmp(UPDATER_IMG_PATH, path)) {
-        updater_data.path = IMG_UPDATE;
         updater_data.fsize = IMG_SIZE;
-        return true;
-    }
-    else if (!strcmp(UPDATER_SRVPACK_PATH, path)) {
+        updater_data.path = IMG_UPDATE1;
+// the launchxl doesn't have enough flash space for 2 user update images
+#ifdef WIPY
+        // check which one should be the next active image
+         _i32 fhandle;
+        if (!sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_READ, NULL, &fhandle)) {
+            ASSERT (sizeof(sBootInfo_t) == sl_FsRead(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t)));
+            sl_FsClose(fhandle, 0, 0, 0);
+            // if we still have an image pending for verification, keep overwriting it
+            if ((sBootInfo.Status == IMG_STATUS_CHECK && sBootInfo.ActiveImg == IMG_ACT_UPDATE2) ||
+                 (sBootInfo.ActiveImg == IMG_ACT_UPDATE1 && sBootInfo.Status != IMG_STATUS_CHECK)) {
+                updater_data.path = IMG_UPDATE2;
+            }
+        }
+#endif
+    } else if (!strcmp(UPDATER_SRVPACK_PATH, path)) {
         updater_data.path = IMG_SRVPACK;
         updater_data.fsize = SRVPACK_SIZE;
-        return true;
-    }
-    else if (!strcmp(UPDATER_SIGN_PATH, path)) {
+    } else if (!strcmp(UPDATER_SIGN_PATH, path)) {
         updater_data.path = SRVPACK_SIGN;
         updater_data.fsize = SIGN_SIZE;
-        return true;
+    } else if (!strcmp(UPDATER_CA_PATH, path)) {
+        updater_data.path = CA_FILE;
+        updater_data.fsize = CA_KEY_SIZE;
+    } else if (!strcmp(UPDATER_CERT_PATH, path)) {
+        updater_data.path = CERT_FILE;
+        updater_data.fsize = CA_KEY_SIZE;
+    } else if (!strcmp(UPDATER_KEY_PATH, path)) {
+        updater_data.path = KEY_FILE;
+        updater_data.fsize = CA_KEY_SIZE;
+    } else {
+        sl_LockObjUnlock (&updater_LockObj);
+        return false;
     }
-    return false;
+    return true;
 }
 
 bool updater_start (void) {
     _u32 AccessModeAndMaxSize = FS_MODE_OPEN_WRITE;
     SlFsFileInfo_t FsFileInfo;
+    bool result = false;
+
     sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
     if (0 != sl_FsGetInfo((_u8 *)updater_data.path, 0, &FsFileInfo)) {
         // file doesn't exist, create it
@@ -64,49 +128,76 @@ bool updater_start (void) {
     }
     if (!sl_FsOpen((_u8 *)updater_data.path, AccessModeAndMaxSize, NULL, &updater_data.fhandle)) {
         updater_data.foffset = 0;
-        return true;
+        result = true;
     }
     sl_LockObjUnlock (&wlan_LockObj);
-    return false;
+    return result;
 }
 
 bool updater_write (uint8_t *buf, uint32_t len) {
+    bool result = false;
+
+    sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
     if (len == sl_FsWrite(updater_data.fhandle, updater_data.foffset, buf, len)) {
         updater_data.foffset += len;
-        return true;
+        result = true;
     }
-    return false;
+    sl_LockObjUnlock (&wlan_LockObj);
+
+    return result;
 }
 
 void updater_finnish (void) {
-    sBootInfo_t sBootInfo;
     _i32 fhandle;
 
     if (updater_data.fhandle > 0) {
+        sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
         // close the file being updated
         sl_FsClose(updater_data.fhandle, NULL, NULL, 0);
-
-        if (!strcmp (IMG_UPDATE, updater_data.path)) {
-            // open the boot info file for reading
+#ifdef WIPY
+        // if we still have an image pending for verification, leave the boot info as it is
+        if (!strncmp(IMG_PREFIX, updater_data.path, strlen(IMG_PREFIX)) && sBootInfo.Status != IMG_STATUS_CHECK) {
+#else
+        if (!strncmp(IMG_PREFIX, updater_data.path, strlen(IMG_PREFIX))) {
+#endif
+#ifdef DEBUG
             if (!sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_READ, NULL, &fhandle)) {
+
                 ASSERT (sizeof(sBootInfo_t) == sl_FsRead(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t)));
                 sl_FsClose(fhandle, 0, 0, 0);
-                // open the file for writing
+#endif
+                // open the boot info file for writing
                 ASSERT (sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_WRITE, NULL, &fhandle) == 0);
+#ifdef DEBUG
             }
             else {
+                // the boot info file doesn't exist yet
                 _u32 BootInfoCreateFlag  = _FS_FILE_OPEN_FLAG_COMMIT | _FS_FILE_PUBLIC_WRITE | _FS_FILE_PUBLIC_READ;
                 ASSERT (sl_FsOpen ((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_CREATE((2 * sizeof(sBootInfo_t)),
                                    BootInfoCreateFlag), NULL, &fhandle) == 0);
             }
+#endif
 
-            // write the new boot info
-            sBootInfo.ActiveImg = IMG_ACT_UPDATE;
+            // save the new boot info
+#ifdef WIPY
+            sBootInfo.PrevImg = sBootInfo.ActiveImg;
+            if (sBootInfo.ActiveImg == IMG_ACT_UPDATE1) {
+                sBootInfo.ActiveImg = IMG_ACT_UPDATE2;
+            } else {
+                sBootInfo.ActiveImg = IMG_ACT_UPDATE1;
+            }
+// the launchxl doesn't have enough flash space for 2 user updates
+#else
+            sBootInfo.PrevImg = IMG_ACT_FACTORY;
+            sBootInfo.ActiveImg = IMG_ACT_UPDATE1;
+#endif
             sBootInfo.Status = IMG_STATUS_CHECK;
             ASSERT (sizeof(sBootInfo_t) == sl_FsWrite(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t)));
             sl_FsClose(fhandle, 0, 0, 0);
         }
+        sl_LockObjUnlock (&wlan_LockObj);
+        updater_data.fhandle = -1;
     }
-    updater_data.fhandle = -1;
-    sl_LockObjUnlock (&wlan_LockObj);
+    sl_LockObjUnlock (&updater_LockObj);
 }
+

cc3200/ftp/updater.h

@@ -1,11 +1,38 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 
 #ifndef UPDATER_H_
 #define UPDATER_H_
 
-bool updater_check_path (void *path);
-bool updater_start (void);
-bool updater_write (uint8_t *buf, uint32_t len);
-void updater_finnish (void);
-bool updater_verify (uint8_t *rbuff, uint8_t *hasbuff);
+extern void updater_pre_init (void);
+extern bool updater_check_path (void *path);
+extern bool updater_start (void);
+extern bool updater_write (uint8_t *buf, uint32_t len);
+extern void updater_finnish (void);
+extern bool updater_verify (uint8_t *rbuff, uint8_t *hasbuff);
 
 #endif /* UPDATER_H_ */

cc3200/hal/cc3200_hal.c

@@ -45,6 +45,8 @@
 #include "mpexception.h"
 #include "telnet.h"
 #include "pybuart.h"
+#include "utils.h"
+#include "irq.h"
 
 #ifdef USE_FREERTOS
 #include "FreeRTOS.h"
@@ -107,16 +109,27 @@ uint32_t HAL_GetTick(void) {
 }
 
 void HAL_Delay(uint32_t delay) {
-#ifdef USE_FREERTOS
-    vTaskDelay (delay / portTICK_PERIOD_MS);
-#else
-    uint32_t start = HAL_tickCount;
-    // Wraparound of tick is taken care of by 2's complement arithmetic.
-    while (HAL_tickCount - start < delay) {
-        // Enter sleep mode, waiting for (at least) the SysTick interrupt.
-        __WFI();
+    // only if we are not within interrupt context and interrupts are enabled
+    if ((HAL_NVIC_INT_CTRL_REG & HAL_VECTACTIVE_MASK) == 0 && query_irq() == IRQ_STATE_ENABLED) {
+        #ifdef USE_FREERTOS
+            vTaskDelay (delay / portTICK_PERIOD_MS);
+        #else
+            uint32_t start = HAL_tickCount;
+            // wraparound of tick is taken care of by 2's complement arithmetic.
+            while (HAL_tickCount - start < delay) {
+                // enter sleep mode, waiting for (at least) the SysTick interrupt.
+                __WFI();
+            }
+        #endif
+    } else {
+        for (int ms = 0; ms < delay; ms++) {
+            UtilsDelay(UTILS_DELAY_US_TO_COUNT(1000));
+        }
     }
-#endif
+}
+
+NORETURN void mp_hal_raise(int errno) {
+    nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, mp_obj_new_int(errno)));
 }
 
 void mp_hal_set_interrupt_char (int c) {

cc3200/hal/cc3200_hal.h

@@ -37,7 +37,7 @@
 #define HAL_FCPU_MHZ                        80U
 #define HAL_FCPU_HZ                         (1000000U * HAL_FCPU_MHZ)
 #define HAL_SYSTICK_PERIOD_US               1000U
-#define UTILS_DELAY_US_TO_COUNT(us)         (((us) * HAL_FCPU_MHZ) / 3)
+#define UTILS_DELAY_US_TO_COUNT(us)         (((us) * HAL_FCPU_MHZ) / 6)
 
 #define HAL_NVIC_INT_CTRL_REG               (*((volatile uint32_t *) 0xE000ED04 ) )
 #define HAL_VECTACTIVE_MASK                 (0x1FUL)
@@ -69,6 +69,7 @@ extern void HAL_SystemDeInit (void);
 extern void HAL_IncrementTick(void);
 extern uint32_t HAL_GetTick(void);
 extern void HAL_Delay(uint32_t delay);
+extern NORETURN void mp_hal_raise(int errno);
 extern void mp_hal_set_interrupt_char (int c);
 
 int mp_hal_stdin_rx_chr(void);

cc3200/hal/pin.c

@@ -49,15 +49,6 @@
 #include "inc/hw_ocp_shared.h"
 #include "pin.h"
 
-//*****************************************************************************
-// Macros
-//*****************************************************************************
-#define PAD_MODE_MASK		0x0000000F
-#define PAD_STRENGTH_MASK	0x000000E0
-#define PAD_TYPE_MASK		0x00000310
-#define PAD_CONFIG_BASE		((OCP_SHARED_BASE + \
-                                  OCP_SHARED_O_GPIO_PAD_CONFIG_0))
-
 //*****************************************************************************
 // PIN to PAD matrix
 //*****************************************************************************

cc3200/hal/pin.h

@@ -143,6 +143,13 @@ extern "C"
 #define PIN_TYPE_OD_PD    0x00000210
 #define PIN_TYPE_ANALOG   0x10000000
 
+//*****************************************************************************
+// Macros for mode and type
+//*****************************************************************************
+#define PAD_MODE_MASK       0x0000000F
+#define PAD_STRENGTH_MASK   0x000000E0
+#define PAD_TYPE_MASK       0x00000310
+#define PAD_CONFIG_BASE     ((OCP_SHARED_BASE + OCP_SHARED_O_GPIO_PAD_CONFIG_0))
 
 //*****************************************************************************
 //

cc3200/hal/prcm.c

@@ -129,11 +129,12 @@
 //*****************************************************************************
 //
 // Bit:  31 is used to indicate use of RTC. If set as '1', RTC feature is used.
-// Bit:  30 is used to indicate that a safe boot should be performed
-// bit:  29 is used to indicate that the last reset was caused by the WDT
-// Bits: 28 to 26 are unused
+// Bit:  30 is used to indicate that a safe boot should be performed.
+// bit:  29 is used to indicate that the last reset was caused by the WDT.
+// bit:  28 is used to indicate that the board is booting for the first time after being programmed in factory.
+// Bits: 27 and 26 are unused.
 // Bits: 25 to 16 are used to save millisecond part of RTC reference.
-// Bits: 15 to 0 are being used for HW Changes / ECO
+// Bits: 15 to 0 are being used for HW Changes / ECO.
 //
 //*****************************************************************************
 
@@ -254,94 +255,49 @@ static const PRCM_PeriphRegs_t PRCM_PeriphRegsList[] =
 
 //*****************************************************************************
 //
-//! Requests a safe boot
+//! Set a special bit
 //!
 //! \return None.
 //
 //*****************************************************************************
-void PRCMRequestSafeBoot(void)
+void PRCMSetSpecialBit(unsigned char bit)
 {
     unsigned int uiRegValue;
 
-    uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 30);
+    uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << bit);
 
     PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue);
 }
 
 //*****************************************************************************
 //
-//! Clear the safe boot request
+//! Clear a special bit
 //!
 //! \return None.
 //
 //*****************************************************************************
-void PRCMClearSafeBootRequest(void)
+void PRCMClearSpecialBit(unsigned char bit)
 {
     unsigned int uiRegValue;
 
-    uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 30));
+    uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << bit));
 
     PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue);
 }
 
 //*****************************************************************************
 //
-//! Read the safe boot request bit. This bit is cleared after reading.
+//! Read a special bit
 //!
-//! \return Value of the safe boot bit
+//! \return Value of the bit
 //
 //*****************************************************************************
-tBoolean PRCMIsSafeBootRequested(void)
+tBoolean PRCMGetSpecialBit(unsigned char bit)
 {
-    tBoolean safeboot = (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 30)) ? true : false;
-
-    PRCMClearSafeBootRequest();
-
-    return safeboot;
-}
-
-//*****************************************************************************
-//
-//! Signals that a WDT reset has occurred
-//!
-//! \return None.
-//
-//*****************************************************************************
-void PRCMSignalWDTReset(void)
-{
-    unsigned int uiRegValue;
-
-    uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) | (1 << 29);
-
-    PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue);
-}
-
-//*****************************************************************************
-//
-//! Clear the WDT reset signal
-//!
-//! \return None.
-//
-//*****************************************************************************
-void PRCMClearWDTResetSignal(void)
-{
-    unsigned int uiRegValue;
-
-    uiRegValue = MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (~(1 << 29));
-
-    PRCMHIBRegWrite(RTC_MSEC_U32_REG_ADDR, uiRegValue);
-}
-
-//*****************************************************************************
-//
-//! Read the WDT reset signal bit
-//!
-//! \return Value of the WDT reset signal bit
-//
-//*****************************************************************************
-tBoolean PRCMWasResetBecauseOfWDT(void)
-{
-    return (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << 29)) ? true : false;
+    tBoolean value = (MAP_PRCMHIBRegRead(RTC_MSEC_U32_REG_ADDR) & (1 << bit)) ? true : false;
+    // special bits must be cleared immediatelly after reading
+    PRCMClearSpecialBit(bit);
+    return value;
 }
 
 //*****************************************************************************

cc3200/hal/prcm.h

@@ -192,17 +192,21 @@ unsigned char ulRstReg;
 // PRCM_ADC should never be used in any user code. 
 #define PRCM_ADC                  0x000000FF 
 
+//*****************************************************************************
+// User bits in the PRCM persistent registers
+//*****************************************************************************
+#define PRCM_SAFE_BOOT_BIT              30
+#define PRCM_WDT_RESET_BIT              29
+#define PRCM_FIRST_BOOT_BIT             28
+
 //*****************************************************************************
 //
 // API Function prototypes
 //
 //*****************************************************************************
-extern void PRCMRequestSafeBoot(void);
-extern void PRCMClearSafeBootRequest(void);
-extern tBoolean PRCMIsSafeBootRequested(void);
-extern void PRCMSignalWDTReset(void);
-extern void PRCMClearWDTResetSignal(void);
-extern tBoolean PRCMWasResetBecauseOfWDT(void);
+extern void PRCMSetSpecialBit(unsigned char bit);
+extern void PRCMClearSpecialBit(unsigned char bit);
+extern tBoolean PRCMGetSpecialBit(unsigned char bit);
 extern void PRCMSOCReset(void);
 extern void PRCMMCUReset(tBoolean bIncludeSubsystem);
 extern unsigned long PRCMSysResetCauseGet(void);

cc3200/main.c

@@ -34,6 +34,7 @@
 #include "simplelink.h"
 #include "pybwdt.h"
 #include "debug.h"
+#include "antenna.h"
 #include "mperror.h"
 
 /******************************************************************************
@@ -65,6 +66,11 @@ int main (void) {
     // Initialize the clocks and the interrupt system
     HAL_SystemInit();
 
+#if MICROPY_HW_ANTENNA_DIVERSITY
+    // configure the antenna selection pins
+    antenna_init0();
+#endif
+
     // Init the watchdog
     pybwdt_init0();
 

cc3200/misc/FreeRTOSHooks.c

@@ -34,7 +34,6 @@
 #include "inc/hw_memmap.h"
 #include "pybuart.h"
 #include "osi.h"
-#include "pybwdt.h"
 #include "mperror.h"
 
 
@@ -49,8 +48,6 @@
 //*****************************************************************************
 void vApplicationIdleHook (void)
 {
-    // kick the watchdog
-    pybwdt_kick();
     // signal that we are alive and kicking
     mperror_heartbeat_signal();
     // gate the processor's clock to save power
@@ -73,10 +70,7 @@ void vApplicationMallocFailedHook (void)
     __asm volatile ("bkpt #0  \n");
 #endif
 
-    for ( ; ; )
-    {
-        __fatal_error("FreeRTOS malloc failed!");
-    }
+    __fatal_error("FreeRTOS malloc failed!");
 }
 
 //*****************************************************************************
@@ -95,10 +89,7 @@ void vApplicationStackOverflowHook (OsiTaskHandle *pxTask, signed char *pcTaskNa
     __asm volatile ("bkpt #0  \n");
 #endif
 
-    for ( ; ; )
-    {
-        __fatal_error("Stack overflow!");
-    }
+    __fatal_error("Stack overflow!");
 }
 
 //*****************************************************************************

cc3200/misc/antenna.c

@@ -0,0 +1,97 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+
+#include "mpconfigboard.h"
+#include "inc/hw_types.h"
+#include "inc/hw_gpio.h"
+#include "inc/hw_ints.h"
+#include "inc/hw_memmap.h"
+#include "rom_map.h"
+#include "pin.h"
+#include "prcm.h"
+#include "gpio.h"
+#include "antenna.h"
+
+
+#if MICROPY_HW_ANTENNA_DIVERSITY
+
+/******************************************************************************
+DEFINE CONSTANTS
+******************************************************************************/
+#define REG_PAD_CONFIG_26           (0x4402E108)
+#define REG_PAD_CONFIG_27           (0x4402E10C)
+
+/******************************************************************************
+DEFINE PRIVATE DATA
+******************************************************************************/
+static antenna_type_t antenna_type_selected = ANTENNA_TYPE_INTERNAL;
+
+/******************************************************************************
+DEFINE PUBLIC FUNCTIONS
+******************************************************************************/
+void antenna_init0(void) {
+    // enable the peripheral clock and set the gpio direction for
+    // both antenna 1 and antenna 2 pins
+    MAP_PRCMPeripheralClkEnable(PRCM_GPIOA3, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
+    MAP_GPIODirModeSet(GPIOA3_BASE, 0x0C, GPIO_DIR_MODE_OUT);
+
+    // configure antenna 1 pin type and strength
+    HWREG(REG_PAD_CONFIG_26) = ((HWREG(REG_PAD_CONFIG_26) & ~(PAD_STRENGTH_MASK | PAD_TYPE_MASK)) | (0x00000020 | 0x00000000));
+    // set the mode
+    HWREG(REG_PAD_CONFIG_26) = ((HWREG(REG_PAD_CONFIG_26) & ~PAD_MODE_MASK) | 0x00000000) & ~(3 << 10);
+    // set the direction
+    HWREG(REG_PAD_CONFIG_26) = ((HWREG(REG_PAD_CONFIG_26) & ~0xC00) | 0x00000800);
+
+    // configure antenna 2 pin type and strength
+    HWREG(REG_PAD_CONFIG_27) = ((HWREG(REG_PAD_CONFIG_27) & ~(PAD_STRENGTH_MASK | PAD_TYPE_MASK)) | (0x00000020 | 0x00000000));
+    // set the mode
+    HWREG(REG_PAD_CONFIG_27) = ((HWREG(REG_PAD_CONFIG_27) & ~PAD_MODE_MASK) | 0x00000000) & ~(3 << 10);
+    // set the direction
+    HWREG(REG_PAD_CONFIG_27) = ((HWREG(REG_PAD_CONFIG_27) & ~0xC00) | 0x00000800);
+
+    // select the currently active antenna
+    antenna_select(antenna_type_selected);
+}
+
+void antenna_select (antenna_type_t _antenna) {
+    if (_antenna == ANTENNA_TYPE_INTERNAL) {
+        MAP_GPIOPinWrite(GPIOA3_BASE, 0x0C, 0x04);
+        // also configure the pull-up and pull-down accordingly
+        HWREG(REG_PAD_CONFIG_26) = ((HWREG(REG_PAD_CONFIG_26) & ~PAD_TYPE_MASK)) | PIN_TYPE_STD_PU;
+        HWREG(REG_PAD_CONFIG_27) = ((HWREG(REG_PAD_CONFIG_27) & ~PAD_TYPE_MASK)) | PIN_TYPE_STD_PD;
+    } else {
+        MAP_GPIOPinWrite(GPIOA3_BASE, 0x0C, 0x08);
+        // also configure the pull-up and pull-down accordingly
+        HWREG(REG_PAD_CONFIG_26) = ((HWREG(REG_PAD_CONFIG_26) & ~PAD_TYPE_MASK)) | PIN_TYPE_STD_PD;
+        HWREG(REG_PAD_CONFIG_27) = ((HWREG(REG_PAD_CONFIG_27) & ~PAD_TYPE_MASK)) | PIN_TYPE_STD_PU;
+    }
+    antenna_type_selected = _antenna;
+}
+
+#endif
+

cc3200/misc/antenna.h

@@ -3,7 +3,6 @@
  *
  * The MIT License (MIT)
  *
- * Copyright (c) 2013, 2014 Damien P. George
  * Copyright (c) 2015 Daniel Campora
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -25,35 +24,15 @@
  * THE SOFTWARE.
  */
 
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
+#ifndef _ANTENNA_H_
+#define _ANTENNA_H_
 
-#include "py/mpconfig.h"
-#include "py/obj.h"
-#include "inc/hw_types.h"
-#include "inc/hw_ints.h"
-#include "inc/hw_memmap.h"
-#include "pybpin.h"
-#include MICROPY_HAL_H
+typedef enum {
+    ANTENNA_TYPE_INTERNAL = 0,
+    ANTENNA_TYPE_EXTERNAL
+} antenna_type_t;
 
+extern void antenna_init0 (void);
+extern void antenna_select (antenna_type_t antenna_type);
 
-pin_obj_t *pin_find_named_pin(const mp_obj_dict_t *named_pins, mp_obj_t name) {
-    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
-    mp_map_elem_t *named_elem = mp_map_lookup(named_map, name, MP_MAP_LOOKUP);
-    if (named_elem != NULL && named_elem->value != NULL) {
-        return named_elem->value;
-    }
-    return NULL;
-}
-
-pin_obj_t *pin_find_pin_by_port_bit (const mp_obj_dict_t *named_pins, uint port, uint bit) {
-    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
-    for (uint i = 0; i < named_map->used; i++) {
-        if ((((pin_obj_t *)named_map->table[i].value)->port == port) &&
-                (((pin_obj_t *)named_map->table[i].value)->bit == bit)) {
-            return named_map->table[i].value;
-        }
-    }
-    return NULL;
-}
+#endif /* _ANTENNA_H_ */

cc3200/misc/mpcallback.c

@@ -24,6 +24,8 @@
  * THE SOFTWARE.
  */
 
+#include "std.h"
+
 #include "py/mpconfig.h"
 #include MICROPY_HAL_H
 #include "py/obj.h"
@@ -41,11 +43,11 @@
  DEFINE PUBLIC DATA
  ******************************************************************************/
 const mp_arg_t mpcallback_init_args[] = {
-    { MP_QSTR_intmode,      MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
+    { MP_QSTR_mode,         MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
     { MP_QSTR_handler,      MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
     { MP_QSTR_priority,     MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
-    { MP_QSTR_value,        MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
-    { MP_QSTR_wakes,        MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = PYB_PWR_MODE_ACTIVE} },
+    { MP_QSTR_value,        MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+    { MP_QSTR_wake_from,    MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = PYB_PWR_MODE_ACTIVE} },
 };
 
 /******************************************************************************
@@ -56,22 +58,21 @@ void mpcallback_init0 (void) {
     mp_obj_list_init(&MP_STATE_PORT(mpcallback_obj_list), 0);
 }
 
-mp_obj_t mpcallback_new (mp_obj_t parent, mp_obj_t handler, const mp_cb_methods_t *methods) {
+mp_obj_t mpcallback_new (mp_obj_t parent, mp_obj_t handler, const mp_cb_methods_t *methods, bool enable) {
     mpcallback_obj_t *self = m_new_obj(mpcallback_obj_t);
     self->base.type = &pyb_callback_type;
     self->handler = handler;
     self->parent = parent;
     self->methods = (mp_cb_methods_t *)methods;
-    self->isenabled = true;
-    // remove any old callback if present
-    mpcallback_remove(self->parent);
+    self->isenabled = enable;
+    // remove it in case it was already registered
+    mpcallback_remove(parent);
     mp_obj_list_append(&MP_STATE_PORT(mpcallback_obj_list), self);
     return self;
 }
 
 mpcallback_obj_t *mpcallback_find (mp_obj_t parent) {
     for (mp_uint_t i = 0; i < MP_STATE_PORT(mpcallback_obj_list).len; i++) {
-        // search for the object and then remove it
         mpcallback_obj_t *callback_obj = ((mpcallback_obj_t *)(MP_STATE_PORT(mpcallback_obj_list).items[i]));
         if (callback_obj->parent == parent) {
             return callback_obj;
@@ -90,6 +91,14 @@ void mpcallback_wake_all (void) {
     }
 }
 
+void mpcallback_disable_all (void) {
+    // re-enable all active callback objects one by one
+    for (mp_uint_t i = 0; i < MP_STATE_PORT(mpcallback_obj_list).len; i++) {
+        mpcallback_obj_t *callback_obj = ((mpcallback_obj_t *)(MP_STATE_PORT(mpcallback_obj_list).items[i]));
+        callback_obj->methods->disable(callback_obj->parent);
+    }
+}
+
 void mpcallback_remove (const mp_obj_t parent) {
     mpcallback_obj_t *callback_obj;
     if ((callback_obj = mpcallback_find(parent))) {
@@ -125,10 +134,8 @@ uint mpcallback_translate_priority (uint priority) {
 void mpcallback_handler (mp_obj_t self_in) {
     mpcallback_obj_t *self = self_in;
     if (self && self->handler != mp_const_none) {
-        // disable interrupts to avoid nesting
-        uint primsk = disable_irq();
         // when executing code within a handler we must lock the GC to prevent
-        // any memory allocations.  We must also catch any exceptions.
+        // any memory allocations.
         gc_lock();
         nlr_buf_t nlr;
         if (nlr_push(&nlr) == 0) {
@@ -139,13 +146,13 @@ void mpcallback_handler (mp_obj_t self_in) {
             // uncaught exception; disable the callback so that it doesn't run again
             self->methods->disable (self->parent);
             self->handler = mp_const_none;
-            // printing an exception here will cause a stack overflow that will end up in
-            // a hard fault, so is better to signal the uncaught (probably non-recoverable)
-            // exception by blinking the system led instead.
+            // signal the error using the heart beat led and
+            // by printing a message
+            printf("Uncaught exception in callback handler\n");
+            mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
             mperror_signal_error();
         }
         gc_unlock();
-        enable_irq(primsk);
     }
 }
 

cc3200/misc/mpcallback.h

@@ -62,12 +62,12 @@ extern const mp_obj_type_t pyb_callback_type;
  DECLARE PUBLIC FUNCTIONS
  ******************************************************************************/
 void mpcallback_init0 (void);
-mp_obj_t mpcallback_new (mp_obj_t parent, mp_obj_t handler, const mp_cb_methods_t *methods);
+mp_obj_t mpcallback_new (mp_obj_t parent, mp_obj_t handler, const mp_cb_methods_t *methods, bool enable);
 mpcallback_obj_t *mpcallback_find (mp_obj_t parent);
 void mpcallback_wake_all (void);
+void mpcallback_disable_all (void);
 void mpcallback_remove (const mp_obj_t parent);
 void mpcallback_handler (mp_obj_t self_in);
 uint mpcallback_translate_priority (uint priority);
-mp_obj_t mpcallback_new (mp_obj_t parent, mp_obj_t handler, const mp_cb_methods_t *methods);
 
 #endif /* MPCALLBACK_H_ */

cc3200/misc/mperror.c

@@ -32,6 +32,7 @@
 #include "py/mpconfig.h"
 #include MICROPY_HAL_H
 #include "py/obj.h"
+#include "py/runtime.h"
 #include "hw_ints.h"
 #include "hw_types.h"
 #include "hw_gpio.h"
@@ -55,20 +56,25 @@
 /******************************************************************************
  DEFINE CONSTANTS
  ******************************************************************************/
-#define MPERROR_TOOGLE_MS                           (40)
-#define MPERROR_SIGNAL_ERROR_MS                     (1000)
+#define MPERROR_TOOGLE_MS                           (50)
+#define MPERROR_SIGNAL_ERROR_MS                     (1200)
 #define MPERROR_HEARTBEAT_ON_MS                     (80)
-#define MPERROR_HEARTBEAT_OFF_MS                    (4920)
+#define MPERROR_HEARTBEAT_OFF_MS                    (3920)
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
+#ifndef BOOTLOADER
+STATIC const mp_obj_base_t pyb_heartbeat_obj = {&pyb_heartbeat_type};
+#endif
+
 struct mperror_heart_beat {
     uint32_t off_time;
     uint32_t on_time;
     bool beating;
     bool enabled;
-} mperror_heart_beat = {.off_time = 0, .on_time = 0, .beating = false, .enabled = false};
+    bool do_disable;
+} mperror_heart_beat = {.off_time = 0, .on_time = 0, .beating = false, .enabled = false, .do_disable = false};
 
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
@@ -88,8 +94,9 @@ void mperror_init0 (void) {
     MAP_GPIODirModeSet(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, GPIO_DIR_MODE_OUT);
 #else
     // configure the system led
-    pin_config ((pin_obj_t *)&MICROPY_SYS_LED_GPIO, PIN_MODE_0, GPIO_DIR_MODE_OUT, PIN_TYPE_STD, PIN_STRENGTH_6MA);
+    pin_config ((pin_obj_t *)&MICROPY_SYS_LED_GPIO, PIN_MODE_0, GPIO_DIR_MODE_OUT, PIN_TYPE_STD, 0, PIN_STRENGTH_6MA);
 #endif
+    mperror_heart_beat.enabled = true;
     mperror_heartbeat_switch_off();
 }
 
@@ -108,7 +115,7 @@ void mperror_bootloader_check_reset_cause (void) {
 
         // since the reset cause will be changed, we must store the right reason
         // so that the application knows it when booting for the next time
-        PRCMSignalWDTReset();
+        PRCMSetSpecialBit(PRCM_WDT_RESET_BIT);
 
         MAP_PRCMHibernateWakeupSourceEnable(PRCM_HIB_SLOW_CLK_CTR);
         // set the sleep interval to 10ms
@@ -131,23 +138,21 @@ void mperror_signal_error (void) {
     }
 }
 
-void mperror_enable_heartbeat (void) {
-    mperror_heart_beat.enabled = true;
-}
-
 void mperror_heartbeat_switch_off (void) {
-    mperror_heart_beat.on_time = 0;
-    mperror_heart_beat.off_time = 0;
-    MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, 0);
-}
-
-void mperror_disable_heartbeat (void) {
-    mperror_heart_beat.enabled = false;
-    mperror_heartbeat_switch_off();
+    if (mperror_heart_beat.enabled) {
+        mperror_heart_beat.on_time = 0;
+        mperror_heart_beat.off_time = 0;
+        MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, 0);
+    }
 }
 
 void mperror_heartbeat_signal (void) {
-    if (mperror_heart_beat.enabled) {
+    if (mperror_heart_beat.do_disable) {
+        mperror_heart_beat.do_disable = false;
+        mperror_heartbeat_switch_off();
+        mperror_heart_beat.enabled = false;
+    }
+    else if (mperror_heart_beat.enabled) {
         if (!mperror_heart_beat.beating) {
             if ((mperror_heart_beat.on_time = HAL_GetTick()) - mperror_heart_beat.off_time > MPERROR_HEARTBEAT_OFF_MS) {
                 MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, MICROPY_SYS_LED_PORT_PIN);
@@ -198,10 +203,21 @@ void nlr_jump_fail(void *val) {
 /******************************************************************************/
 // Micro Python bindings
 
+/// \classmethod \constructor()
+///
+/// Return the heart beat object
+STATIC mp_obj_t pyb_heartbeat_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    // check arguments
+    mp_arg_check_num(n_args, n_kw, 0, 0, false);
+
+    // return constant object
+    return (mp_obj_t)&pyb_heartbeat_obj;
+}
+
 /// \function enable()
 /// Enables the heartbeat signal
 STATIC mp_obj_t pyb_enable_heartbeat(mp_obj_t self) {
-    mperror_enable_heartbeat ();
+    mperror_heart_beat.enabled = true;
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_enable_heartbeat_obj, pyb_enable_heartbeat);
@@ -209,7 +225,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_enable_heartbeat_obj, pyb_enable_heartbeat)
 /// \function disable()
 /// Disables the heartbeat signal
 STATIC mp_obj_t pyb_disable_heartbeat(mp_obj_t self) {
-    mperror_disable_heartbeat ();
+    mperror_heart_beat.do_disable = true;
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_disable_heartbeat_obj, pyb_disable_heartbeat);
@@ -220,11 +236,11 @@ STATIC const mp_map_elem_t pyb_heartbeat_locals_dict_table[] = {
 };
 STATIC MP_DEFINE_CONST_DICT(pyb_heartbeat_locals_dict, pyb_heartbeat_locals_dict_table);
 
-static const mp_obj_type_t pyb_heartbeat_type = {
+const mp_obj_type_t pyb_heartbeat_type = {
     { &mp_type_type },
     .name = MP_QSTR_HeartBeat,
+    .make_new = pyb_heartbeat_make_new,
     .locals_dict = (mp_obj_t)&pyb_heartbeat_locals_dict,
 };
 
-const mp_obj_base_t pyb_heartbeat_obj = {&pyb_heartbeat_type};
 #endif

cc3200/misc/mperror.h

@@ -29,7 +29,7 @@
 #define MPERROR_H_
 
 #ifndef BOOTLOADER
-extern const mp_obj_base_t pyb_heartbeat_obj;
+extern const mp_obj_type_t pyb_heartbeat_type;
 #endif
 
 extern void NORETURN __fatal_error(const char *msg);
@@ -38,9 +38,7 @@ void mperror_init0 (void);
 void mperror_bootloader_check_reset_cause (void);
 void mperror_deinit_sfe_pin (void);
 void mperror_signal_error (void);
-void mperror_enable_heartbeat (void);
 void mperror_heartbeat_switch_off (void);
-void mperror_disable_heartbeat (void);
 void mperror_heartbeat_signal (void);
 
 #endif // MPERROR_H_

cc3200/misc/mpsystick.c

@@ -28,7 +28,6 @@
 #include "py/mpconfig.h"
 #include MICROPY_HAL_H
 #include "py/obj.h"
-#include "irq.h"
 #include "mpsystick.h"
 #include "systick.h"
 #include "inc/hw_types.h"
@@ -69,7 +68,7 @@ uint32_t sys_tick_get_microseconds(void) {
     enable_irq(irq_state);
 
     // It's still possible for the countflag bit to get set if the counter was
-    // reloaded between reading VAL and reading CTRL. With interrupts  disabled
+    // reloaded between reading VAL and reading CTRL. With interrupts disabled
     // it definitely takes less than 50 HCLK cycles between reading VAL and
     // reading CTRL, so the test (counter > 50) is to cover the case where VAL
     // is +ve and very close to zero, and the COUNTFLAG bit is also set.

cc3200/mods/modnetwork.c

@@ -25,85 +25,76 @@
  * THE SOFTWARE.
  */
 
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
+#include <std.h>
 
 #include "py/mpstate.h"
 #include MICROPY_HAL_H
 #include "modnetwork.h"
 #include "mpexception.h"
 #include "serverstask.h"
+#include "simplelink.h"
+
 
 /// \module network - network configuration
 ///
-/// This module provides network drivers and routing configuration.
+/// This module provides network drivers and server configuration.
 
 void mod_network_init0(void) {
-    mp_obj_list_init(&MP_STATE_PORT(mod_network_nic_list), 0);
 }
 
-void mod_network_register_nic(mp_obj_t nic) {
-    for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) {
-        if (MP_STATE_PORT(mod_network_nic_list).items[i] == nic) {
-            // nic already registered
-            return;
-        }
-    }
-    // nic not registered so add to list
-    mp_obj_list_append(&MP_STATE_PORT(mod_network_nic_list), nic);
-}
-
-mp_obj_t mod_network_find_nic(void) {
-    for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) {
-        mp_obj_t nic = MP_STATE_PORT(mod_network_nic_list).items[i];
-        return nic;
-    }
-    nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
-}
-
-STATIC mp_obj_t network_route(void) {
-    return &MP_STATE_PORT(mod_network_nic_list);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(network_route_obj, network_route);
-
 #if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
-STATIC mp_obj_t network_server_start(void) {
-    servers_start();
-    return mp_const_none;
+STATIC mp_obj_t network_server_running(mp_uint_t n_args, const mp_obj_t *args) {
+    if (n_args > 0) {
+        // set
+        if (mp_obj_is_true(args[0])) {
+            servers_start();
+        } else {
+            servers_stop();
+        }
+        return mp_const_none;
+    } else {
+        // get
+        return MP_BOOL(servers_are_enabled());
+    }
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(network_server_start_obj, network_server_start);
-
-STATIC mp_obj_t network_server_stop(void) {
-    servers_stop();
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(network_server_stop_obj, network_server_stop);
-
-STATIC mp_obj_t network_server_enabled(void) {
-    return MP_BOOL(servers_are_enabled());
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(network_server_enabled_obj, network_server_enabled);
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_server_running_obj, 0, 1, network_server_running);
 
 STATIC mp_obj_t network_server_login(mp_obj_t user, mp_obj_t pass) {
     const char *_user = mp_obj_str_get_str(user);
     const char *_pass = mp_obj_str_get_str(pass);
+    if (strlen(user) > SERVERS_USER_PASS_LEN_MAX || strlen(pass) > SERVERS_USER_PASS_LEN_MAX) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
     servers_set_login ((char *)_user, (char *)_pass);
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(network_server_login_obj, network_server_login);
+
+// timeout value given in seconds
+STATIC mp_obj_t network_server_timeout(mp_uint_t n_args, const mp_obj_t *args) {
+    if (n_args > 0) {
+        uint32_t _timeout = mp_obj_get_int(args[0]);
+        if (!servers_set_timeout(_timeout * 1000)) {
+            // timeout is too low
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+        }
+        return mp_const_none;
+    } else {
+        // get
+        return mp_obj_new_int(servers_get_timeout() / 1000);
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_server_timeout_obj, 0, 1, network_server_timeout);
 #endif
 
 STATIC const mp_map_elem_t mp_module_network_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__),            MP_OBJ_NEW_QSTR(MP_QSTR_network) },
     { MP_OBJ_NEW_QSTR(MP_QSTR_WLAN),                (mp_obj_t)&mod_network_nic_type_wlan },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_route),               (mp_obj_t)&network_route_obj },
 
 #if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
-    { MP_OBJ_NEW_QSTR(MP_QSTR_start_server),        (mp_obj_t)&network_server_start_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_stop_server),         (mp_obj_t)&network_server_stop_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_server_enabled),      (mp_obj_t)&network_server_enabled_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_server_running),      (mp_obj_t)&network_server_running_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_server_login),        (mp_obj_t)&network_server_login_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_server_timeout),      (mp_obj_t)&network_server_timeout_obj },
 #endif
 };
 

cc3200/mods/modnetwork.h

@@ -28,53 +28,47 @@
 #ifndef MODNETWORK_H_
 #define MODNETWORK_H_
 
+/******************************************************************************
+ DEFINE CONSTANTS
+ ******************************************************************************/
 #define MOD_NETWORK_IPV4ADDR_BUF_SIZE             (4)
 
-// Forward declaration
-struct _mod_network_socket_obj_t;
-
+/******************************************************************************
+ DEFINE TYPES
+ ******************************************************************************/
 typedef struct _mod_network_nic_type_t {
     mp_obj_type_t base;
-
-    // API for non-socket operations
-    int (*gethostbyname)(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *ip_out, uint8_t family);
-
-    // API for socket operations; return -1 on error
-    int (*socket)(struct _mod_network_socket_obj_t *s, int *_errno);
-    void (*close)(struct _mod_network_socket_obj_t *socket);
-    int (*bind)(struct _mod_network_socket_obj_t *s, byte *ip, mp_uint_t port, int *_errno);
-    int (*listen)(struct _mod_network_socket_obj_t *s, mp_int_t backlog, int *_errno);
-    int (*accept)(struct _mod_network_socket_obj_t *s, struct _mod_network_socket_obj_t *s2, byte *ip, mp_uint_t *port, int *_errno);
-    int (*connect)(struct _mod_network_socket_obj_t *s, byte *ip, mp_uint_t port, int *_errno);
-    int (*send)(struct _mod_network_socket_obj_t *s, const byte *buf, mp_uint_t len, int *_errno);
-    int (*recv)(struct _mod_network_socket_obj_t *s, byte *buf, mp_uint_t len, int *_errno);
-    int (*sendto)(struct _mod_network_socket_obj_t *s, const byte *buf, mp_uint_t len, byte *ip, mp_uint_t port, int *_errno);
-    int (*recvfrom)(struct _mod_network_socket_obj_t *s, byte *buf, mp_uint_t len, byte *ip, mp_uint_t *port, int *_errno);
-    int (*setsockopt)(struct _mod_network_socket_obj_t *s, mp_uint_t level, mp_uint_t opt, const void *optval, mp_uint_t optlen, int *_errno);
-    int (*settimeout)(struct _mod_network_socket_obj_t *s, mp_uint_t timeout_ms, int *_errno);
-    int (*ioctl)(struct _mod_network_socket_obj_t *s, mp_uint_t request, mp_uint_t arg, int *_errno);
 } mod_network_nic_type_t;
 
-typedef struct _mod_network_socket_obj_t {
-    mp_obj_base_t base;
-    mp_obj_t nic;
-    mod_network_nic_type_t *nic_type;
+typedef struct _mod_network_socket_base_t {
     union {
         struct {
+            // this order is important so that fileno gets > 0 once
+            // the socket descriptor is assigned after being created.
             uint8_t domain;
+            int8_t fileno;
             uint8_t type;
             uint8_t proto;
-            int8_t fileno;
         } u_param;
         int16_t sd;
     };
-    bool  closed;
+    bool has_timeout;
+    bool cert_req;
+} mod_network_socket_base_t;
+
+typedef struct _mod_network_socket_obj_t {
+    mp_obj_base_t base;
+    mod_network_socket_base_t sock_base;
 } mod_network_socket_obj_t;
 
+/******************************************************************************
+ EXPORTED DATA
+ ******************************************************************************/
 extern const mod_network_nic_type_t mod_network_nic_type_wlan;
 
+/******************************************************************************
+ DECLARE FUNCTIONS
+ ******************************************************************************/
 void mod_network_init0(void);
-void mod_network_register_nic(mp_obj_t nic);
-mp_obj_t mod_network_find_nic(void);
 
 #endif  // MODNETWORK_H_

cc3200/mods/modpyb.c

@@ -37,24 +37,25 @@
 #include "inc/hw_ints.h"
 #include "inc/hw_memmap.h"
 #include "inc/hw_uart.h"
+#include "rom_map.h"
 #include "prcm.h"
 #include "pyexec.h"
+#include "ff.h"
+#include "diskio.h"
+#include "sflash_diskio.h"
 #include "pybuart.h"
 #include "pybpin.h"
 #include "pybrtc.h"
 #include "mpsystick.h"
 #include "simplelink.h"
+#include "modnetwork.h"
 #include "modwlan.h"
 #include "moduos.h"
 #include "telnet.h"
-#include "ff.h"
-#include "diskio.h"
-#include "sflash_diskio.h"
 #include "FreeRTOS.h"
 #include "portable.h"
 #include "task.h"
 #include "mpexception.h"
-#include "mpcallback.h"
 #include "random.h"
 #include "pybadc.h"
 #include "pybi2c.h"
@@ -62,6 +63,7 @@
 #include "pybwdt.h"
 #include "pybsleep.h"
 #include "pybspi.h"
+#include "pybtimer.h"
 #include "utils.h"
 #include "gccollect.h"
 #include "mperror.h"
@@ -79,21 +81,21 @@ extern OsiTaskHandle    xSimpleLinkSpawnTaskHndl;
 ///
 /// The `pyb` module contains specific functions related to the pyboard.
 
-/// \function hard_reset()
-/// Resets the pyboard in a manner similar to pushing the external RESET
-/// button.
-STATIC mp_obj_t pyb_hard_reset(void) {
+/// \function reset()
+/// Resets the pyboard in a manner similar to pushing the external
+/// reset button.
+STATIC mp_obj_t pyb_reset(void) {
     // disable wlan
     wlan_stop(SL_STOP_TIMEOUT_LONG);
-    // perform a SoC reset
-    PRCMSOCReset();
+    // reset the cpu and it's peripherals
+    MAP_PRCMMCUReset(true);
     return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_hard_reset_obj, pyb_hard_reset);
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_reset_obj, pyb_reset);
 
 #ifdef DEBUG
 /// \function info([dump_alloc_table])
-/// Print out some run time info which is helpful duirng development.
+/// Print out some run time info which is helpful during development.
 STATIC mp_obj_t pyb_info(uint n_args, const mp_obj_t *args) {
     // FreeRTOS info
     {
@@ -123,93 +125,21 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_info_obj, 0, 1, pyb_info);
 /// \function freq()
 /// Returns the CPU frequency: (F_CPU).
 STATIC mp_obj_t pyb_freq(void) {
-    return mp_obj_new_int(HAL_FCPU_HZ);
+    mp_obj_t tuple[1] = {
+       mp_obj_new_int(HAL_FCPU_HZ),
+    };
+    return mp_obj_new_tuple(1, tuple);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_freq_obj, pyb_freq);
 
-/// \function millis()
-/// Returns the number of milliseconds since the board was last reset.
-///
-/// The result is always a micropython smallint (31-bit signed number), so
-/// after 2^30 milliseconds (about 12.4 days) this will start to return
-/// negative numbers.
-STATIC mp_obj_t pyb_millis(void) {
-    // We want to "cast" the 32 bit unsigned into a small-int.  This means
-    // copying the MSB down 1 bit (extending the sign down), which is
-    // equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
-    return MP_OBJ_NEW_SMALL_INT(HAL_GetTick());
+/// \function unique_id()
+/// Returns a string of 6 bytes (48 bits), which is the unique ID for the MCU.
+STATIC mp_obj_t pyb_unique_id(void) {
+    uint8_t mac[SL_BSSID_LENGTH];
+    wlan_get_mac (mac);
+    return mp_obj_new_bytes(mac, SL_BSSID_LENGTH);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_millis_obj, pyb_millis);
-
-/// \function elapsed_millis(start)
-/// Returns the number of milliseconds which have elapsed since `start`.
-///
-/// This function takes care of counter wrap, and always returns a positive
-/// number. This means it can be used to measure periods upto about 12.4 days.
-///
-/// Example:
-///     start = pyb.millis()
-///     while pyb.elapsed_millis(start) < 1000:
-///         # Perform some operation
-STATIC mp_obj_t pyb_elapsed_millis(mp_obj_t start) {
-    uint32_t startMillis = mp_obj_get_int(start);
-    uint32_t currMillis = HAL_GetTick();
-    return MP_OBJ_NEW_SMALL_INT((currMillis - startMillis) & 0x3fffffff);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_elapsed_millis_obj, pyb_elapsed_millis);
-
-/// \function micros()
-/// Returns the number of microseconds since the board was last reset.
-///
-/// The result is always a micropython smallint (31-bit signed number), so
-/// after 2^30 microseconds (about 17.8 minutes) this will start to return
-/// negative numbers.
-STATIC mp_obj_t pyb_micros(void) {
-    // We want to "cast" the 32 bit unsigned into a small-int.  This means
-    // copying the MSB down 1 bit (extending the sign down), which is
-    // equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
-    return MP_OBJ_NEW_SMALL_INT(sys_tick_get_microseconds());
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_micros_obj, pyb_micros);
-
-/// \function elapsed_micros(start)
-/// Returns the number of microseconds which have elapsed since `start`.
-///
-/// This function takes care of counter wrap, and always returns a positive
-/// number. This means it can be used to measure periods upto about 17.8 minutes.
-///
-/// Example:
-///     start = pyb.micros()
-///     while pyb.elapsed_micros(start) < 1000:
-///         # Perform some operation
-STATIC mp_obj_t pyb_elapsed_micros(mp_obj_t start) {
-    uint32_t startMicros = mp_obj_get_int(start);
-    uint32_t currMicros = sys_tick_get_microseconds();
-    return MP_OBJ_NEW_SMALL_INT((currMicros - startMicros) & 0x3fffffff);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_elapsed_micros_obj, pyb_elapsed_micros);
-
-/// \function delay(ms)
-/// Delay for the given number of milliseconds.
-STATIC mp_obj_t pyb_delay(mp_obj_t ms_in) {
-    mp_int_t ms = mp_obj_get_int(ms_in);
-    if (ms > 0) {
-        HAL_Delay(ms);
-    }
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_delay_obj, pyb_delay);
-
-/// \function udelay(us)
-/// Delay for the given number of microseconds.
-STATIC mp_obj_t pyb_udelay(mp_obj_t usec_in) {
-    mp_int_t usec = mp_obj_get_int(usec_in);
-    if (usec > 0) {
-        UtilsDelay(UTILS_DELAY_US_TO_COUNT(usec));
-    }
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_udelay_obj, pyb_udelay);
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_unique_id_obj, pyb_unique_id);
 
 /// \function repl_uart(uart)
 /// Get or set the UART object that the REPL is repeated on.
@@ -238,46 +168,31 @@ MP_DECLARE_CONST_FUN_OBJ(pyb_main_obj); // defined in main.c
 STATIC const mp_map_elem_t pyb_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__),            MP_OBJ_NEW_QSTR(MP_QSTR_pyb) },
 
-    { MP_OBJ_NEW_QSTR(MP_QSTR_reset),               (mp_obj_t)&pyb_hard_reset_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_reset),               (mp_obj_t)&pyb_reset_obj },
 #ifdef DEBUG
     { MP_OBJ_NEW_QSTR(MP_QSTR_info),                (mp_obj_t)&pyb_info_obj },
 #endif
     { MP_OBJ_NEW_QSTR(MP_QSTR_freq),                (mp_obj_t)&pyb_freq_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_repl_info),           (mp_obj_t)&pyb_set_repl_info_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_unique_id),           (mp_obj_t)&pyb_unique_id_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_repl_uart),           (mp_obj_t)&pyb_repl_uart_obj },
 
     { MP_OBJ_NEW_QSTR(MP_QSTR_disable_irq),         (mp_obj_t)&pyb_disable_irq_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_enable_irq),          (mp_obj_t)&pyb_enable_irq_obj },
 
     { MP_OBJ_NEW_QSTR(MP_QSTR_main),                (mp_obj_t)&pyb_main_obj },
-
-    { MP_OBJ_NEW_QSTR(MP_QSTR_millis),              (mp_obj_t)&pyb_millis_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_elapsed_millis),      (mp_obj_t)&pyb_elapsed_millis_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_micros),              (mp_obj_t)&pyb_micros_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_elapsed_micros),      (mp_obj_t)&pyb_elapsed_micros_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_delay),               (mp_obj_t)&pyb_delay_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_udelay),              (mp_obj_t)&pyb_udelay_obj },
-
-#if MICROPY_HW_ENABLE_RNG
     { MP_OBJ_NEW_QSTR(MP_QSTR_rng),                 (mp_obj_t)&pyb_rng_get_obj },
-#endif
-
-#if MICROPY_HW_ENABLE_RTC
-    { MP_OBJ_NEW_QSTR(MP_QSTR_RTC),                 (mp_obj_t)&pyb_rtc_obj },
-#endif
 
+    { MP_OBJ_NEW_QSTR(MP_QSTR_RTC),                 (mp_obj_t)&pyb_rtc_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_Pin),                 (mp_obj_t)&pin_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_ADC),                 (mp_obj_t)&pyb_adc_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_I2C),                 (mp_obj_t)&pyb_i2c_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_SPI),                 (mp_obj_t)&pyb_spi_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_UART),                (mp_obj_t)&pyb_uart_type },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_WDT),                 (mp_obj_t)&pyb_wdt_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_Timer),               (mp_obj_t)&pyb_timer_type },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_WDT),                 (mp_obj_t)&pyb_wdt_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_Sleep),               (mp_obj_t)&pyb_sleep_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_HeartBeat),           (mp_obj_t)&pyb_heartbeat_obj },
-
-#if MICROPY_HW_HAS_SDCARD
+    { MP_OBJ_NEW_QSTR(MP_QSTR_HeartBeat),           (mp_obj_t)&pyb_heartbeat_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_SD),                  (mp_obj_t)&pyb_sd_type },
-#endif
 };
 
 STATIC MP_DEFINE_CONST_DICT(pyb_module_globals, pyb_module_globals_table);

cc3200/mods/modubinascii.c

@@ -0,0 +1,64 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014 Paul Sokolovsky
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/mpconfig.h"
+#include MICROPY_HAL_H
+#include "py/nlr.h"
+#include "py/runtime.h"
+#include "py/binary.h"
+#include "extmod/modubinascii.h"
+#include "modubinascii.h"
+#include "inc/hw_types.h"
+#include "inc/hw_ints.h"
+#include "inc/hw_nvic.h"
+#include "inc/hw_dthe.h"
+#include "hw_memmap.h"
+#include "rom_map.h"
+#include "prcm.h"
+#include "crc.h"
+#include "cryptohash.h"
+#include "mpexception.h"
+
+
+/******************************************************************************/
+// Micro Python bindings
+
+STATIC const mp_map_elem_t mp_module_binascii_globals_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__),        MP_OBJ_NEW_QSTR(MP_QSTR_ubinascii) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_hexlify),         (mp_obj_t)&mod_binascii_hexlify_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_unhexlify),       (mp_obj_t)&mod_binascii_unhexlify_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_a2b_base64),      (mp_obj_t)&mod_binascii_a2b_base64_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_b2a_base64),      (mp_obj_t)&mod_binascii_b2a_base64_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(mp_module_binascii_globals, mp_module_binascii_globals_table);
+
+const mp_obj_module_t mp_module_ubinascii = {
+    .base = { &mp_type_module },
+    .name = MP_QSTR_ubinascii,
+    .globals = (mp_obj_dict_t*)&mp_module_binascii_globals,
+};

cc3200/mods/modubinascii.h

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014 Paul Sokolovsky
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MODUBINASCII_H_
+#define MODUBINASCII_H_
+
+
+#endif /* MODUBINASCII_H_ */

cc3200/mods/moduhashlib.c

@@ -0,0 +1,210 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014 Paul Sokolovsky
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include "py/mpconfig.h"
+#include MICROPY_HAL_H
+#include "py/nlr.h"
+#include "py/runtime.h"
+#include "inc/hw_types.h"
+#include "inc/hw_ints.h"
+#include "inc/hw_nvic.h"
+#include "inc/hw_shamd5.h"
+#include "inc/hw_dthe.h"
+#include "hw_memmap.h"
+#include "rom_map.h"
+#include "prcm.h"
+#include "shamd5.h"
+#include "cryptohash.h"
+#include "mpexception.h"
+
+
+/******************************************************************************
+ DEFINE PRIVATE TYPES
+ ******************************************************************************/
+typedef struct _mp_obj_hash_t {
+    mp_obj_base_t base;
+    uint8_t *buffer;
+    uint32_t b_size;
+    uint32_t c_size;
+    uint8_t  algo;
+    uint8_t  h_size;
+    bool  fixedlen;
+    bool  digested;
+    uint8_t hash[32];
+} mp_obj_hash_t;
+
+/******************************************************************************
+ DECLARE PRIVATE FUNCTIONS
+ ******************************************************************************/
+STATIC void hash_update_internal(mp_obj_t self_in, mp_obj_t data, bool digest);
+STATIC mp_obj_t hash_read (mp_obj_t self_in);
+
+/******************************************************************************
+ DEFINE PRIVATE FUNCTIONS
+ ******************************************************************************/
+STATIC void hash_update_internal(mp_obj_t self_in, mp_obj_t data, bool digest) {
+    mp_obj_hash_t *self = self_in;
+    mp_buffer_info_t bufinfo;
+
+    if (data) {
+        mp_get_buffer_raise(data, &bufinfo, MP_BUFFER_READ);
+    }
+
+    if (digest) {
+        CRYPTOHASH_SHAMD5Start (self->algo, self->b_size);
+    }
+
+    if (self->c_size < self->b_size || !data || !self->fixedlen) {
+        if (digest || self->fixedlen) {
+            // no data means we want to process our internal buffer
+            CRYPTOHASH_SHAMD5Update (data ? bufinfo.buf : self->buffer, data ? bufinfo.len : self->b_size);
+            self->c_size += data ? bufinfo.len : 0;
+        } else {
+            self->buffer = m_renew(byte, self->buffer, self->b_size, self->b_size + bufinfo.len);
+            mp_seq_copy((byte*)self->buffer + self->b_size, bufinfo.buf, bufinfo.len, byte);
+            self->b_size += bufinfo.len;
+            self->digested = false;
+        }
+    } else {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+}
+
+STATIC mp_obj_t hash_read (mp_obj_t self_in) {
+    mp_obj_hash_t *self = self_in;
+
+    if (!self->fixedlen) {
+        if (!self->digested) {
+            hash_update_internal(self, MP_OBJ_NULL, true);
+        }
+    } else if (self->c_size < self->b_size) {
+        // it's a fixed len block which is still incomplete
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+
+    if (!self->digested) {
+        CRYPTOHASH_SHAMD5Read ((uint8_t *)self->hash);
+        self->digested = true;
+    }
+    return mp_obj_new_bytes(self->hash, self->h_size);
+}
+
+/******************************************************************************/
+// Micro Python bindings
+
+/// \classmethod \constructor([data[, block_size]])
+/// initial data must be given if block_size wants to be passed
+STATIC mp_obj_t hash_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    mp_arg_check_num(n_args, n_kw, 0, 2, false);
+    mp_obj_hash_t *self = m_new0(mp_obj_hash_t, 1);
+    self->base.type = type_in;
+    if (self->base.type->name == MP_QSTR_sha1) {
+        self->algo = SHAMD5_ALGO_SHA1;
+        self->h_size = 20;
+    } else /* if (self->base.type->name == MP_QSTR_sha256) */ {
+        self->algo = SHAMD5_ALGO_SHA256;
+        self->h_size = 32;
+    } /* else {
+        self->algo = SHAMD5_ALGO_MD5;
+        self->h_size = 32;
+    } */
+
+    if (n_args) {
+        // CPython extension to avoid buffering the data before digesting it
+        // Note: care must be taken to provide all intermediate blocks as multiple
+        //       of four bytes, otherwise the resulting hash will be incorrect.
+        //       the final block can be of any length
+        if (n_args > 1) {
+            // block size given, we will feed the data directly into the hash engine
+            self->fixedlen = true;
+            self->b_size = mp_obj_get_int(args[1]);
+            hash_update_internal(self, args[0], true);
+        } else {
+            hash_update_internal(self, args[0], false);
+        }
+    }
+    return self;
+}
+
+STATIC mp_obj_t hash_update(mp_obj_t self_in, mp_obj_t arg) {
+    mp_obj_hash_t *self = self_in;
+    hash_update_internal(self, arg, false);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(hash_update_obj, hash_update);
+
+STATIC mp_obj_t hash_digest(mp_obj_t self_in) {
+    return hash_read(self_in);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(hash_digest_obj, hash_digest);
+
+STATIC const mp_map_elem_t hash_locals_dict_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR_update),    (mp_obj_t) &hash_update_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_digest),    (mp_obj_t) &hash_digest_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(hash_locals_dict, hash_locals_dict_table);
+
+//STATIC const mp_obj_type_t md5_type = {
+//    { &mp_type_type },
+//    .name = MP_QSTR_md5,
+//    .make_new = hash_make_new,
+//    .locals_dict = (mp_obj_t)&hash_locals_dict,
+//};
+
+STATIC const mp_obj_type_t sha1_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_sha1,
+    .make_new = hash_make_new,
+    .locals_dict = (mp_obj_t)&hash_locals_dict,
+};
+
+STATIC const mp_obj_type_t sha256_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_sha256,
+    .make_new = hash_make_new,
+    .locals_dict = (mp_obj_t)&hash_locals_dict,
+};
+
+STATIC const mp_map_elem_t mp_module_hashlib_globals_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__),    MP_OBJ_NEW_QSTR(MP_QSTR_uhashlib) },
+//    { MP_OBJ_NEW_QSTR(MP_QSTR_md5),         (mp_obj_t)&md5_type },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sha1),        (mp_obj_t)&sha1_type },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sha256),      (mp_obj_t)&sha256_type },
+};
+
+STATIC MP_DEFINE_CONST_DICT(mp_module_hashlib_globals, mp_module_hashlib_globals_table);
+
+const mp_obj_module_t mp_module_uhashlib = {
+    .base = { &mp_type_module },
+    .name = MP_QSTR_uhashlib,
+    .globals = (mp_obj_dict_t*)&mp_module_hashlib_globals,
+};
+

cc3200/mods/moduos.c

@@ -28,21 +28,22 @@
 #include <stdint.h>
 #include <string.h>
 
-#include "py/mpconfig.h"
+#include "py/mpstate.h"
 #include "py/nlr.h"
-#include "py/obj.h"
 #include "py/objtuple.h"
 #include "py/objstr.h"
+#include "py/runtime.h"
 #include "genhdr/mpversion.h"
 #include "ff.h"
 #include "diskio.h"
 #include "sflash_diskio.h"
 #include "file.h"
 #include "random.h"
-#include "sd_diskio.h"
 #include "mpexception.h"
 #include "version.h"
 #include "timeutils.h"
+#include "moduos.h"
+#include "pybsd.h"
 
 /// \module os - basic "operating system" services
 ///
@@ -52,20 +53,153 @@
 /// drives are accessible from here.  They are currently:
 ///
 ///     /flash      -- the serial flash filesystem
-///     /sd         -- the SD card (if it exists)
 ///
-/// On boot up, the current directory is `/flash` if no SD card is inserted,
-/// otherwise it is `/sd`.
+/// On boot up, the current directory is `/flash`.
+
+/******************************************************************************
+ DECLARE PRIVATE DATA
+ ******************************************************************************/
+STATIC uint32_t os_num_mounted_devices;
+
+/******************************************************************************
+ DEFINE PUBLIC FUNCTIONS
+ ******************************************************************************/
+
+void moduos_init0 (void) {
+    // initialize the mount objects list
+    mp_obj_list_init(&MP_STATE_PORT(mount_obj_list), 0);
+    os_num_mounted_devices = 0;
+}
+
+os_fs_mount_t *osmount_find_by_path (const char *path) {
+    for (mp_uint_t i = 0; i < MP_STATE_PORT(mount_obj_list).len; i++) {
+        os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[i]));
+        if (!strcmp(path, mount_obj->path)) {
+            return mount_obj;
+        }
+    }
+    return NULL;
+}
+
+os_fs_mount_t *osmount_find_by_volume (uint8_t vol) {
+    for (mp_uint_t i = 0; i < MP_STATE_PORT(mount_obj_list).len; i++) {
+        os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[i]));
+        if (vol == mount_obj->vol) {
+            return mount_obj;
+        }
+    }
+    return NULL;
+}
+
+os_fs_mount_t *osmount_find_by_device (mp_obj_t device) {
+    for (mp_uint_t i = 0; i < MP_STATE_PORT(mount_obj_list).len; i++) {
+        os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[i]));
+        if (device == mount_obj->device) {
+            return mount_obj;
+        }
+    }
+    return NULL;
+}
 
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/
-STATIC bool sd_in_root(void) {
-#if MICROPY_HW_HAS_SDCARD
-    return sd_disk_ready();
-#else
-    return false;
+
+// Checks for path equality, ignoring trailing slashes:
+//   path_equal(/, /) -> true
+//   path_equal(/flash//, /flash) -> true
+// second argument must be in canonical form (meaning no trailing slash, unless it's just /)
+STATIC bool path_equal(const char *path, const char *path_canonical) {
+    for (; *path_canonical != '\0' && *path == *path_canonical; ++path, ++path_canonical) {
+    }
+    if (*path_canonical != '\0') {
+        return false;
+    }
+    for (; *path == '/'; ++path) {
+    }
+    return *path == '\0';
+}
+
+STATIC void append_dir_item (mp_obj_t dirlist, const char *item, bool string) {
+    // make a string object for this entry
+    mp_obj_t entry_o;
+    if (string) {
+        entry_o = mp_obj_new_str(item, strlen(item), false);
+    } else {
+        entry_o = mp_obj_new_bytes((const byte*)item, strlen(item));
+    }
+
+    // add the entry to the list
+    mp_obj_list_append(dirlist, entry_o);
+}
+
+STATIC void mount (mp_obj_t device, const char *path, uint pathlen, bool readonly) {
+    // is the mount point already in use?
+    FILINFO fno;
+#if _USE_LFN
+    fno.lfname = NULL;
+    fno.lfsize = 0;
 #endif
+    // cannot mount twice or on existing paths
+    if (f_stat(path, &fno) == FR_OK || osmount_find_by_device(device)) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+
+    // create a new object
+    os_fs_mount_t *self = m_new_obj(os_fs_mount_t);
+    self->device = device;
+    self->path = path;
+    self->pathlen = pathlen;
+    self->vol = os_num_mounted_devices + 1;     // '/flash' is volume 0
+
+    if (device == (mp_obj_t)&pybsd_obj) {
+        // need to make it different to NULL, otherwise it's read only by default
+        self->writeblocks[0] = mp_const_none;
+        self->sync[0] = MP_OBJ_NULL;    // no need to sync the SD card
+        self->count[0] = MP_OBJ_NULL;
+    } else {
+        // load block protocol methods
+        mp_load_method(device, MP_QSTR_readblocks, self->readblocks);
+        mp_load_method_maybe(device, MP_QSTR_writeblocks, self->writeblocks);
+        mp_load_method_maybe(device, MP_QSTR_sync, self->sync);
+        mp_load_method(device, MP_QSTR_count, self->count);
+    }
+
+    // Read-only device indicated by writeblocks[0] == MP_OBJ_NULL.
+    // User can specify read-only device by:
+    //  1. readonly=True keyword argument
+    //  2. nonexistent writeblocks method (then writeblocks[0] == MP_OBJ_NULL already)
+    if (readonly) {
+        self->writeblocks[0] = MP_OBJ_NULL;
+    }
+
+    // we need to add it before doing the actual mount, so that the volume can be found
+    mp_obj_list_append(&MP_STATE_PORT(mount_obj_list), self);
+
+    // actually mount it
+    if (f_mount(&self->fatfs, self->path, 1) != FR_OK) {
+        // remove it and raise
+        mp_obj_list_remove(&MP_STATE_PORT(mount_obj_list), self);
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
+    }
+
+    // mount succeeded, increment the count
+    os_num_mounted_devices++;
+}
+
+STATIC void unmount (const char *path) {
+    if (FR_OK != f_mount (NULL, path, 1)) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
+    }
+
+    // remove from the list after the actual unmount
+    os_fs_mount_t *mount_obj;
+    if ((mount_obj = osmount_find_by_path(path))) {
+        mp_obj_list_remove(&MP_STATE_PORT(mount_obj_list), mount_obj);
+        os_num_mounted_devices--;
+    } else {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
 }
 
 /******************************************************************************/
@@ -117,25 +251,20 @@ STATIC mp_obj_t os_chdir(mp_obj_t path_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_chdir_obj, os_chdir);
 
-/// \function getcwd()
-/// Get the current directory.
 STATIC mp_obj_t os_getcwd(void) {
     char buf[MICROPY_ALLOC_PATH_MAX + 1];
     FRESULT res = f_getcwd(buf, sizeof buf);
-
     if (res != FR_OK) {
         nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(fresult_to_errno_table[res])));
     }
-
     return mp_obj_new_str(buf, strlen(buf), false);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_0(os_getcwd_obj, os_getcwd);
 
-/// \function listdir([dir])
-/// With no argument, list the current directory.  Otherwise list the given directory.
 STATIC mp_obj_t os_listdir(mp_uint_t n_args, const mp_obj_t *args) {
     bool is_str_type = true;
     const char *path;
+    mp_obj_t dir_list = mp_obj_new_list(0, NULL);
 
     if (n_args == 1) {
         if (mp_obj_get_type(args[0]) == &mp_type_bytes) {
@@ -146,64 +275,51 @@ STATIC mp_obj_t os_listdir(mp_uint_t n_args, const mp_obj_t *args) {
         path = "";
     }
 
-    // "hack" to list root directory
+    // "hack" to list the root directory
     if (path[0] == '/' && path[1] == '\0') {
-        mp_obj_t dir_list = mp_obj_new_list(0, NULL);
-        mp_obj_list_append(dir_list, MP_OBJ_NEW_QSTR(MP_QSTR_flash));
-        if (sd_in_root()) {
-            mp_obj_list_append(dir_list, MP_OBJ_NEW_QSTR(MP_QSTR_sd));
+        // add 'flash' to the list
+        append_dir_item (dir_list, "flash", is_str_type);
+        for (mp_uint_t i = 0; i < MP_STATE_PORT(mount_obj_list).len; i++) {
+            os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[i]));
+            append_dir_item (dir_list, &mount_obj->path[1], is_str_type);
         }
-        return dir_list;
-    }
+    } else {
+        FRESULT res;
+        DIR dir;
+        FILINFO fno;
+    #if _USE_LFN
+        char lfn_buf[_MAX_LFN + 1];
+        fno.lfname = lfn_buf;
+        fno.lfsize = sizeof(lfn_buf);
+    #endif
 
-    FRESULT res;
-    DIR dir;
-    FILINFO fno;
-#if _USE_LFN
-    char lfn_buf[_MAX_LFN + 1];
-    fno.lfname = lfn_buf;
-    fno.lfsize = sizeof(lfn_buf);
-#endif
-
-    res = f_opendir(&dir, path);                       /* Open the directory */
-    if (res != FR_OK) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
-    }
-
-    mp_obj_t dir_list = mp_obj_new_list(0, NULL);
-
-    for (;;) {
-        res = f_readdir(&dir, &fno);                   /* Read a directory item */
-        if (res != FR_OK || fno.fname[0] == 0) break;  /* Break on error or end of dir */
-        if (fno.fname[0] == '.' && fno.fname[1] == 0) continue;             /* Ignore . entry */
-        if (fno.fname[0] == '.' && fno.fname[1] == '.' && fno.fname[2] == 0) continue;             /* Ignore .. entry */
-
-#if _USE_LFN
-        char *fn = *fno.lfname ? fno.lfname : fno.fname;
-#else
-        char *fn = fno.fname;
-#endif
-
-        // make a string object for this entry
-        mp_obj_t entry_o;
-        if (is_str_type) {
-            entry_o = mp_obj_new_str(fn, strlen(fn), false);
-        } else {
-            entry_o = mp_obj_new_bytes((const byte*)fn, strlen(fn));
+        res = f_opendir(&dir, path);                       /* Open the directory */
+        if (res != FR_OK) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
         }
 
-        // add the entry to the list
-        mp_obj_list_append(dir_list, entry_o);
-    }
+        for ( ; ; ) {
+            res = f_readdir(&dir, &fno);                   /* Read a directory item */
+            if (res != FR_OK || fno.fname[0] == 0) break;  /* Break on error or end of dir */
+            if (fno.fname[0] == '.' && fno.fname[1] == 0) continue;             /* Ignore . entry */
+            if (fno.fname[0] == '.' && fno.fname[1] == '.' && fno.fname[2] == 0) continue;             /* Ignore .. entry */
 
-    f_closedir(&dir);
+        #if _USE_LFN
+            char *fn = *fno.lfname ? fno.lfname : fno.fname;
+        #else
+            char *fn = fno.fname;
+        #endif
+
+            // add the entry to the list
+            append_dir_item (dir_list, fn, is_str_type);
+        }
+        f_closedir(&dir);
+    }
 
     return dir_list;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(os_listdir_obj, 0, 1, os_listdir);
 
-/// \function mkdir(path)
-/// Create a new directory.
 STATIC mp_obj_t os_mkdir(mp_obj_t path_o) {
     const char *path = mp_obj_str_get_str(path_o);
     FRESULT res = f_mkdir(path);
@@ -219,8 +335,19 @@ STATIC mp_obj_t os_mkdir(mp_obj_t path_o) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_mkdir_obj, os_mkdir);
 
-/// \function remove(path)
-/// Remove a file or a directory
+STATIC mp_obj_t os_rename(mp_obj_t path_in, mp_obj_t path_out) {
+    const char *old_path = mp_obj_str_get_str(path_in);
+    const char *new_path = mp_obj_str_get_str(path_out);
+    FRESULT res = f_rename(old_path, new_path);
+    switch (res) {
+        case FR_OK:
+            return mp_const_none;
+        default:
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(os_rename_obj, os_rename);
+
 STATIC mp_obj_t os_remove(mp_obj_t path_o) {
     const char *path = mp_obj_str_get_str(path_o);
     FRESULT res = f_unlink(path);
@@ -233,49 +360,33 @@ STATIC mp_obj_t os_remove(mp_obj_t path_o) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_remove_obj, os_remove);
 
-// Checks for path equality, ignoring trailing slashes:
-//   path_equal(/, /) -> true
-//   path_equal(/flash//, /flash) -> true
-// second argument must be in canonical form (meaning no trailing slash, unless it's just /)
-STATIC bool path_equal(const char *path, const char *path_canonical) {
-    for (; *path_canonical != '\0' && *path == *path_canonical; ++path, ++path_canonical) {
-    }
-    if (*path_canonical != '\0') {
-        return false;
-    }
-    for (; *path == '/'; ++path) {
-    }
-    return *path == '\0';
-}
-
-/// \function stat(path)
-/// Get the status of a file or directory.
 STATIC mp_obj_t os_stat(mp_obj_t path_in) {
     const char *path = mp_obj_str_get_str(path_in);
-
-    FRESULT res;
+    bool isbuilt_in = false;
     FILINFO fno;
+    FRESULT res;
 #if _USE_LFN
     fno.lfname = NULL;
     fno.lfsize = 0;
 #endif
 
-    if (path_equal(path, "/") || path_equal(path, "/flash") || path_equal(path, "/sd")) {
+    // check on the user mounted devices
+    for (mp_uint_t i = 0; i < MP_STATE_PORT(mount_obj_list).len; i++) {
+        os_fs_mount_t *mount_obj = ((os_fs_mount_t *)(MP_STATE_PORT(mount_obj_list).items[i]));
+        if (path_equal(path, mount_obj->path)) {
+            isbuilt_in = true;
+            break;
+        }
+    }
+
+    if (path_equal(path, "/") || path_equal(path, "/flash") || isbuilt_in) {
         // stat built-in directory
-        if (path[1] == 's' && !sd_in_root()) {
-            // no /sd directory
-            res = FR_NO_PATH;
-            goto error;
-        }
-	fno.fsize = 0;
-	fno.fdate = 0;
-	fno.ftime = 0;
-	fno.fattrib = AM_DIR;
-    } else {
-        res = f_stat(path, &fno);
-        if (res != FR_OK) {
-            goto error;
-        }
+        fno.fsize = 0;
+        fno.fdate = 0;
+        fno.ftime = 0;
+        fno.fattrib = AM_DIR;
+    } else if ((res = f_stat(path, &fno)) != FR_OK) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(fresult_to_errno_table[res])));
     }
 
     mp_obj_tuple_t *t = mp_obj_new_tuple(10, NULL);
@@ -303,26 +414,16 @@ STATIC mp_obj_t os_stat(mp_obj_t path_in) {
     t->items[7] = mp_obj_new_int(seconds);   // st_atime
     t->items[8] = t->items[7];               // st_mtime
     t->items[9] = t->items[7];               // st_ctime
-
     return t;
-
-error:
-    nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(fresult_to_errno_table[res])));
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_stat_obj, os_stat);
 
-/// \function sync()
-/// Sync all filesystems.
 STATIC mp_obj_t os_sync(void) {
     sflash_disk_flush();
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_0(os_sync_obj, os_sync);
 
-#if MICROPY_HW_ENABLE_RNG
-/// \function urandom(n)
-/// Return a bytes object with n random bytes, generated by the hardware
-/// random number generator.
 STATIC mp_obj_t os_urandom(mp_obj_t num) {
     mp_int_t n = mp_obj_get_int(num);
     vstr_t vstr;
@@ -333,18 +434,107 @@ STATIC mp_obj_t os_urandom(mp_obj_t num) {
     return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_urandom_obj, os_urandom);
-#endif
 
-/// \function mkdisk('path')
-/// Formats the selected drive, useful when the filesystem has been damaged beyond repair
-STATIC mp_obj_t os_mkdisk(mp_obj_t path_o) {
+STATIC mp_obj_t os_mount(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    static const mp_arg_t mount_args[] = {
+        { MP_QSTR_readonly,     MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
+    };
+
+    // parse args
+    mp_obj_t device = pos_args[0];
+    mp_obj_t mount_point = pos_args[1];
+    mp_arg_val_t args[MP_ARRAY_SIZE(mount_args)];
+    mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(mount_args), mount_args, args);
+
+    // get the mount point
+    mp_uint_t pathlen;
+    const char *path_in = mp_obj_str_get_data(mount_point, &pathlen);
+    if (pathlen == 0) {
+        goto invalid_args;
+    }
+
+    char *path = m_new(char, pathlen + 1);
+    memcpy(path, path_in, pathlen);
+    path[pathlen] = '\0';
+
+    // "remove" any extra slahes at the end
+    while (path[(pathlen - 1)] == '/') {
+        path[--pathlen] = '\0';
+    }
+
+    // is the mount point valid?
+    if (pathlen < 2 || path[0] !='/' || strchr(&path[1], '/')) {
+        goto invalid_args;
+    }
+
+    // now mount it
+    mount(device, path, pathlen, args[0].u_bool);
+
+    return mp_const_none;
+
+invalid_args:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_value_invalid_arguments));
+}
+MP_DEFINE_CONST_FUN_OBJ_KW(os_mount_obj, 2, os_mount);
+
+STATIC mp_obj_t os_unmount(mp_obj_t path_o) {
     const char *path = mp_obj_str_get_str(path_o);
-    if (FR_OK != f_mkfs(path, 1, 0)) {
+
+    // '/flash' cannot be unmounted, also not the current working directory
+    if (path_equal(path, "/flash")) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+
+    // now unmount it
+    unmount (path);
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_unmount_obj, os_unmount);
+
+STATIC mp_obj_t os_mkfs(mp_obj_t device) {
+    const char *path = "/__mkfs__mnt__";
+    bool unmt = false;
+    FRESULT res;
+
+    if (MP_OBJ_IS_STR_OR_BYTES(device)) {
+        path = mp_obj_str_get_str(device);
+        // otherwise the relative path check will pass...
+        if (path[0] != '/') {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_value_invalid_arguments));
+        }
+    } else {
+        // mount it and unmount it briefly
+        unmt = true;
+        mount(device, path, strlen(path), false);
+    }
+
+    byte sfd = 0;
+    if (!memcmp(path, "/flash", strlen("/flash"))) {
+        sfd = 1;
+    } else {
+        os_fs_mount_t *mount_obj;
+        if ((mount_obj = osmount_find_by_path(path))) {
+            if (mount_obj->device != (mp_obj_t)&pybsd_obj &&
+                mp_obj_get_int(mp_call_method_n_kw(0, 0, mount_obj->count)) < 2048) {
+                sfd = 1;
+            }
+        }
+    }
+
+    // now format the device
+    res = f_mkfs(path, sfd, 0);
+
+    if (unmt) {
+        unmount (path);
+    }
+
+    if (res != FR_OK) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
     }
     return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_mkdisk_obj, os_mkdisk);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(os_mkfs_obj, os_mkfs);
 
 STATIC const mp_map_elem_t os_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR___name__),        MP_OBJ_NEW_QSTR(MP_QSTR_uos) },
@@ -354,15 +544,16 @@ STATIC const mp_map_elem_t os_module_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_getcwd),          (mp_obj_t)&os_getcwd_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_listdir),         (mp_obj_t)&os_listdir_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_mkdir),           (mp_obj_t)&os_mkdir_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_rename),          (mp_obj_t)&os_rename_obj},
     { MP_OBJ_NEW_QSTR(MP_QSTR_remove),          (mp_obj_t)&os_remove_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_rmdir),           (mp_obj_t)&os_remove_obj },  // rmdir aliases to remove
+    { MP_OBJ_NEW_QSTR(MP_QSTR_rmdir),           (mp_obj_t)&os_remove_obj },     // rmdir aliases to remove
     { MP_OBJ_NEW_QSTR(MP_QSTR_stat),            (mp_obj_t)&os_stat_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_unlink),          (mp_obj_t)&os_remove_obj },  // unlink aliases to remove
+    { MP_OBJ_NEW_QSTR(MP_QSTR_unlink),          (mp_obj_t)&os_remove_obj },     // unlink aliases to remove
     { MP_OBJ_NEW_QSTR(MP_QSTR_sync),            (mp_obj_t)&os_sync_obj },
-#if MICROPY_HW_ENABLE_RNG
     { MP_OBJ_NEW_QSTR(MP_QSTR_urandom),         (mp_obj_t)&os_urandom_obj },
-#endif
-    { MP_OBJ_NEW_QSTR(MP_QSTR_mkdisk),          (mp_obj_t)&os_mkdisk_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_mount),           (mp_obj_t)&os_mount_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_unmount),         (mp_obj_t)&os_unmount_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_mkfs),            (mp_obj_t)&os_mkfs_obj },
 
     /// \constant sep - separation character used in paths
     { MP_OBJ_NEW_QSTR(MP_QSTR_sep),             MP_OBJ_NEW_QSTR(MP_QSTR__slash_) },

cc3200/mods/moduos.h

@@ -28,5 +28,20 @@
 #ifndef MODUOS_H_
 #define MODUOS_H_
 
+typedef struct _os_fs_mount_t {
+    mp_obj_t device;
+    const char *path;
+    mp_uint_t pathlen;
+    mp_obj_t readblocks[4];
+    mp_obj_t writeblocks[4];
+    mp_obj_t sync[2];
+    mp_obj_t count[2];
+    FATFS fatfs;
+    uint8_t vol;
+} os_fs_mount_t;
+
+void moduos_init0 (void);
+os_fs_mount_t *osmount_find_by_path (const char *path);
+os_fs_mount_t *osmount_find_by_volume (uint8_t vol);
 
 #endif // MODUOS_H_

cc3200/mods/modusocket.c

@@ -29,67 +29,141 @@
 #include <string.h>
 
 #include "simplelink.h"
-#include "py/mpstate.h"
+#include "py/mpconfig.h"
 #include MICROPY_HAL_H
+#include "py/obj.h"
+#include "py/objstr.h"
 #include "py/runtime.h"
+#include "py/stream.h"
 #include "netutils.h"
 #include "modnetwork.h"
+#include "modwlan.h"
+#include "modusocket.h"
 #include "mpexception.h"
 
+/******************************************************************************
+ DEFINE PRIVATE CONSTANTS
+ ******************************************************************************/
+#define MOD_NETWORK_MAX_SOCKETS                 10
+
+/******************************************************************************
+ DEFINE PRIVATE TYPES
+ ******************************************************************************/
+typedef struct {
+    int16_t sd;
+    bool    user;
+} modusocket_sock_t;
+
+/******************************************************************************
+ DEFINE PRIVATE DATA
+ ******************************************************************************/
+STATIC const mp_obj_type_t socket_type;
+STATIC OsiLockObj_t modusocket_LockObj;
+STATIC modusocket_sock_t modusocket_sockets[MOD_NETWORK_MAX_SOCKETS] = {{.sd = -1}, {.sd = -1}, {.sd = -1}, {.sd = -1}, {.sd = -1},
+                                                                        {.sd = -1}, {.sd = -1}, {.sd = -1}, {.sd = -1}, {.sd = -1}};
+
+/******************************************************************************
+ DEFINE PUBLIC FUNCTIONS
+ ******************************************************************************/
+__attribute__ ((section (".boot")))
+void modusocket_pre_init (void) {
+    // create the wlan lock
+    ASSERT(OSI_OK == sl_LockObjCreate(&modusocket_LockObj, "SockLock"));
+    sl_LockObjUnlock (&modusocket_LockObj);
+}
+
+void modusocket_socket_add (int16_t sd, bool user) {
+    sl_LockObjLock (&modusocket_LockObj, SL_OS_WAIT_FOREVER);
+    for (int i = 0; i < MOD_NETWORK_MAX_SOCKETS; i++) {
+        if (modusocket_sockets[i].sd < 0) {
+            modusocket_sockets[i].sd = sd;
+            modusocket_sockets[i].user = user;
+            break;
+        }
+    }
+    sl_LockObjUnlock (&modusocket_LockObj);
+}
+
+void modusocket_socket_delete (int16_t sd) {
+    sl_LockObjLock (&modusocket_LockObj, SL_OS_WAIT_FOREVER);
+    for (int i = 0; i < MOD_NETWORK_MAX_SOCKETS; i++) {
+        if (modusocket_sockets[i].sd == sd) {
+            modusocket_sockets[i].sd = -1;
+            break;
+        }
+    }
+    sl_LockObjUnlock (&modusocket_LockObj);
+}
+
+void modusocket_enter_sleep (void) {
+    fd_set socketset;
+    int16_t maxfd = 0;
+
+    for (int i = 0; i < MOD_NETWORK_MAX_SOCKETS; i++) {
+        int16_t sd;
+        if ((sd = modusocket_sockets[i].sd) >= 0) {
+            FD_SET(sd, &socketset);
+            maxfd = (maxfd > sd) ? maxfd : sd;
+        }
+    }
+
+    // wait for any of the sockets to become ready...
+    sl_Select(maxfd + 1, &socketset, NULL, NULL, NULL);
+}
+
+void modusocket_close_all_user_sockets (void) {
+    sl_LockObjLock (&modusocket_LockObj, SL_OS_WAIT_FOREVER);
+    for (int i = 0; i < MOD_NETWORK_MAX_SOCKETS; i++) {
+        if (modusocket_sockets[i].sd >= 0 && modusocket_sockets[i].user) {
+            sl_Close(modusocket_sockets[i].sd);
+            modusocket_sockets[i].sd = -1;
+        }
+    }
+    sl_LockObjUnlock (&modusocket_LockObj);
+}
+
 /******************************************************************************/
 // socket class
 
-STATIC const mp_obj_type_t socket_type;
-
-STATIC void socket_select_nic(mod_network_socket_obj_t *self) {
-    // select a nic
-    self->nic = mod_network_find_nic();
-    self->nic_type = (mod_network_nic_type_t*)mp_obj_get_type(self->nic);
-
-    // call the nic to open the socket
-    int _errno;
-    if (self->nic_type->socket(self, &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
-    }
-}
-
 // constructor socket(family=AF_INET, type=SOCK_STREAM, proto=IPPROTO_TCP, fileno=None)
 STATIC mp_obj_t socket_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
     mp_arg_check_num(n_args, n_kw, 0, 4, false);
 
-    // create socket object (not bound to any NIC yet)
+    // create socket object
     mod_network_socket_obj_t *s = m_new_obj_with_finaliser(mod_network_socket_obj_t);
     s->base.type = (mp_obj_t)&socket_type;
-    s->nic = MP_OBJ_NULL;
-    s->nic_type = NULL;
-    s->u_param.domain = AF_INET;
-    s->u_param.type = SOCK_STREAM;
-    s->u_param.proto = IPPROTO_TCP;
-    s->u_param.fileno = -1;
-    if (n_args >= 1) {
-        s->u_param.domain = mp_obj_get_int(args[0]);
-        if (n_args >= 2) {
-            s->u_param.type = mp_obj_get_int(args[1]);
-            if (n_args >= 3) {
-                s->u_param.proto = mp_obj_get_int(args[2]);
-                if (n_args == 4) {
-                    s->u_param.fileno = mp_obj_get_int(args[3]);
+    s->sock_base.u_param.domain = AF_INET;
+    s->sock_base.u_param.type = SOCK_STREAM;
+    s->sock_base.u_param.proto = IPPROTO_TCP;
+    s->sock_base.u_param.fileno = -1;
+    s->sock_base.has_timeout = false;
+    s->sock_base.cert_req = false;
+
+    if (n_args > 0) {
+        s->sock_base.u_param.domain = mp_obj_get_int(args[0]);
+        if (n_args > 1) {
+            s->sock_base.u_param.type = mp_obj_get_int(args[1]);
+            if (n_args > 2) {
+                s->sock_base.u_param.proto = mp_obj_get_int(args[2]);
+                if (n_args > 3) {
+                    s->sock_base.u_param.fileno = mp_obj_get_int(args[3]);
                 }
             }
         }
     }
 
-    socket_select_nic(s);
-
+    // create the socket
+    int _errno;
+    if (wlan_socket_socket(s, &_errno) != 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
+    }
     return s;
 }
 
 // method socket.close()
 STATIC mp_obj_t socket_close(mp_obj_t self_in) {
     mod_network_socket_obj_t *self = self_in;
-    if (self->nic != MP_OBJ_NULL) {
-        self->nic_type->close(self);
-    }
+    wlan_socket_close(self);
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_close_obj, socket_close);
@@ -104,10 +178,9 @@ STATIC mp_obj_t socket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
 
     // call the NIC to bind the socket
     int _errno;
-    if (self->nic_type->bind(self, ip, port, &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    if (wlan_socket_bind(self, ip, port, &_errno) != 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
-
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_bind_obj, socket_bind);
@@ -116,16 +189,10 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_bind_obj, socket_bind);
 STATIC mp_obj_t socket_listen(mp_obj_t self_in, mp_obj_t backlog) {
     mod_network_socket_obj_t *self = self_in;
 
-    if (self->nic == MP_OBJ_NULL) {
-        // not connected
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
-    }
-
     int _errno;
-    if (self->nic_type->listen(self, mp_obj_get_int(backlog), &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    if (wlan_socket_listen(self, mp_obj_get_int(backlog), &_errno) != 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
-
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_listen_obj, socket_listen);
@@ -135,29 +202,25 @@ STATIC mp_obj_t socket_accept(mp_obj_t self_in) {
     mod_network_socket_obj_t *self = self_in;
 
     // create new socket object
-    // starts with empty NIC so that finaliser doesn't run close() method if accept() fails
     mod_network_socket_obj_t *socket2 = m_new_obj_with_finaliser(mod_network_socket_obj_t);
-    socket2->base.type = (mp_obj_t)&socket_type;
-    socket2->nic = MP_OBJ_NULL;
-    socket2->nic_type = NULL;
+    // the new socket inherits all properties from its parent
+    memcpy (socket2, self, sizeof(mod_network_socket_obj_t));
 
-    // accept incoming connection
+    // accept the incoming connection
     uint8_t ip[MOD_NETWORK_IPV4ADDR_BUF_SIZE];
     mp_uint_t port;
     int _errno;
-    if (self->nic_type->accept(self, socket2, ip, &port, &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    if (wlan_socket_accept(self, socket2, ip, &port, &_errno) != 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
 
-    // new socket has valid state, so set the NIC to the same as parent
-    socket2->nic = self->nic;
-    socket2->nic_type = self->nic_type;
+    // add the socket to the list
+    modusocket_socket_add(socket2->sock_base.sd, true);
 
     // make the return value
     mp_obj_tuple_t *client = mp_obj_new_tuple(2, NULL);
     client->items[0] = socket2;
     client->items[1] = netutils_format_inet_addr(ip, port, NETUTILS_LITTLE);
-
     return client;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_accept_obj, socket_accept);
@@ -170,12 +233,14 @@ STATIC mp_obj_t socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
     uint8_t ip[MOD_NETWORK_IPV4ADDR_BUF_SIZE];
     mp_uint_t port = netutils_parse_inet_addr(addr_in, ip, NETUTILS_LITTLE);
 
-    // call the NIC to connect the socket
+    // connect the socket
     int _errno;
-    if (self->nic_type->connect(self, ip, port, &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    if (wlan_socket_connect(self, ip, port, &_errno) != 0) {
+        if (!self->sock_base.cert_req && _errno == SL_ESECSNOVERIFY) {
+            return mp_const_none;
+        }
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
-
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_connect_obj, socket_connect);
@@ -183,16 +248,12 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_connect_obj, socket_connect);
 // method socket.send(bytes)
 STATIC mp_obj_t socket_send(mp_obj_t self_in, mp_obj_t buf_in) {
     mod_network_socket_obj_t *self = self_in;
-    if (self->nic == MP_OBJ_NULL) {
-        // not connected
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EBADF)));
-    }
     mp_buffer_info_t bufinfo;
     mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_READ);
     int _errno;
-    mp_uint_t ret = self->nic_type->send(self, bufinfo.buf, bufinfo.len, &_errno);
-    if (ret == -1) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    mp_int_t ret = wlan_socket_send(self, bufinfo.buf, bufinfo.len, &_errno);
+    if (ret < 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
     return mp_obj_new_int_from_uint(ret);
 }
@@ -201,17 +262,16 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_send_obj, socket_send);
 // method socket.recv(bufsize)
 STATIC mp_obj_t socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
     mod_network_socket_obj_t *self = self_in;
-    if (self->nic == MP_OBJ_NULL) {
-        // not connected
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
-    }
     mp_int_t len = mp_obj_get_int(len_in);
     vstr_t vstr;
     vstr_init_len(&vstr, len);
     int _errno;
-    mp_uint_t ret = self->nic_type->recv(self, (byte*)vstr.buf, len, &_errno);
-    if (ret == -1) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    mp_int_t ret = wlan_socket_recv(self, (byte*)vstr.buf, len, &_errno);
+    if (ret < 0) {
+        if (_errno == EAGAIN && self->sock_base.has_timeout) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_TimeoutError, "timed out"));
+        }
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
     if (ret == 0) {
         return mp_const_empty_bytes;
@@ -234,13 +294,12 @@ STATIC mp_obj_t socket_sendto(mp_obj_t self_in, mp_obj_t data_in, mp_obj_t addr_
     uint8_t ip[MOD_NETWORK_IPV4ADDR_BUF_SIZE];
     mp_uint_t port = netutils_parse_inet_addr(addr_in, ip, NETUTILS_LITTLE);
 
-    // call the NIC to sendto
+    // call the nic to sendto
     int _errno;
-    mp_int_t ret = self->nic_type->sendto(self, bufinfo.buf, bufinfo.len, ip, port, &_errno);
-    if (ret == -1) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    mp_int_t ret = wlan_socket_sendto(self, bufinfo.buf, bufinfo.len, ip, port, &_errno);
+    if (ret < 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
-
     return mp_obj_new_int(ret);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_3(socket_sendto_obj, socket_sendto);
@@ -248,18 +307,17 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_3(socket_sendto_obj, socket_sendto);
 // method socket.recvfrom(bufsize)
 STATIC mp_obj_t socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
     mod_network_socket_obj_t *self = self_in;
-    if (self->nic == MP_OBJ_NULL) {
-        // not connected
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
-    }
     vstr_t vstr;
     vstr_init_len(&vstr, mp_obj_get_int(len_in));
     byte ip[4];
     mp_uint_t port;
     int _errno;
-    mp_int_t ret = self->nic_type->recvfrom(self, (byte*)vstr.buf, vstr.len, ip, &port, &_errno);
-    if (ret == -1) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    mp_int_t ret = wlan_socket_recvfrom(self, (byte*)vstr.buf, vstr.len, ip, &port, &_errno);
+    if (ret < 0) {
+        if (_errno == EAGAIN && self->sock_base.has_timeout) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_TimeoutError, "timed out"));
+        }
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
     mp_obj_t tuple[2];
     if (ret == 0) {
@@ -296,10 +354,9 @@ STATIC mp_obj_t socket_setsockopt(mp_uint_t n_args, const mp_obj_t *args) {
     }
 
     int _errno;
-    if (self->nic_type->setsockopt(self, level, opt, optval, optlen, &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    if (wlan_socket_setsockopt(self, level, opt, optval, optlen, &_errno) != 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
-
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_setsockopt_obj, 4, 4, socket_setsockopt);
@@ -310,19 +367,15 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_setsockopt_obj, 4, 4, socket_s
 // otherwise, timeout is in seconds
 STATIC mp_obj_t socket_settimeout(mp_obj_t self_in, mp_obj_t timeout_in) {
     mod_network_socket_obj_t *self = self_in;
-    if (self->nic == MP_OBJ_NULL) {
-        // not connected
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
-    }
     mp_uint_t timeout;
     if (timeout_in == mp_const_none) {
         timeout = -1;
     } else {
-        timeout = 1000 * mp_obj_get_int(timeout_in);
+        timeout = mp_obj_get_int(timeout_in);
     }
     int _errno;
-    if (self->nic_type->settimeout(self, timeout, &_errno) != 0) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+    if (wlan_socket_settimeout(self, timeout, &_errno) != 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-_errno)));
     }
     return mp_const_none;
 }
@@ -339,29 +392,68 @@ STATIC mp_obj_t socket_setblocking(mp_obj_t self_in, mp_obj_t blocking) {
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_setblocking_obj, socket_setblocking);
 
 STATIC const mp_map_elem_t socket_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR___del__), (mp_obj_t)&socket_close_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&socket_close_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_bind), (mp_obj_t)&socket_bind_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_listen), (mp_obj_t)&socket_listen_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_accept), (mp_obj_t)&socket_accept_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_connect), (mp_obj_t)&socket_connect_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_send), (mp_obj_t)&socket_send_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_recv), (mp_obj_t)&socket_recv_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_sendto), (mp_obj_t)&socket_sendto_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_recvfrom), (mp_obj_t)&socket_recvfrom_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_setsockopt), (mp_obj_t)&socket_setsockopt_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_settimeout), (mp_obj_t)&socket_settimeout_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_setblocking), (mp_obj_t)&socket_setblocking_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR___del__),         (mp_obj_t)&socket_close_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_close),           (mp_obj_t)&socket_close_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_bind),            (mp_obj_t)&socket_bind_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_listen),          (mp_obj_t)&socket_listen_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_accept),          (mp_obj_t)&socket_accept_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_connect),         (mp_obj_t)&socket_connect_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_send),            (mp_obj_t)&socket_send_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sendall),         (mp_obj_t)&socket_send_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_recv),            (mp_obj_t)&socket_recv_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sendto),          (mp_obj_t)&socket_sendto_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_recvfrom),        (mp_obj_t)&socket_recvfrom_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_setsockopt),      (mp_obj_t)&socket_setsockopt_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_settimeout),      (mp_obj_t)&socket_settimeout_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_setblocking),     (mp_obj_t)&socket_setblocking_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_makefile),        (mp_obj_t)&mp_identity_obj },
+
+    // stream methods
+    { MP_OBJ_NEW_QSTR(MP_QSTR_read),            (mp_obj_t)&mp_stream_read_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readall),         (mp_obj_t)&mp_stream_readall_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readinto),        (mp_obj_t)&mp_stream_readinto_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readline),        (mp_obj_t)&mp_stream_unbuffered_readline_obj},
+    { MP_OBJ_NEW_QSTR(MP_QSTR_write),           (mp_obj_t)&mp_stream_write_obj },
 };
 
-STATIC MP_DEFINE_CONST_DICT(socket_locals_dict, socket_locals_dict_table);
+MP_DEFINE_CONST_DICT(socket_locals_dict, socket_locals_dict_table);
 
-mp_uint_t socket_ioctl(mp_obj_t self_in, mp_uint_t request, mp_uint_t arg, int *errcode) {
+STATIC mp_uint_t socket_read(mp_obj_t self_in, void *buf, mp_uint_t size, int *errcode) {
     mod_network_socket_obj_t *self = self_in;
-    return self->nic_type->ioctl(self, request, arg, errcode);
+    mp_int_t ret = wlan_socket_recv(self, buf, size, errcode);
+    if (ret < 0) {
+        // we need to ignore the socket closed error here because a readall() or read() without params
+        // only returns when the socket is closed by the other end
+        if (*errcode != SL_ESECCLOSED) {
+            ret = MP_STREAM_ERROR;
+            // needed to convert simplelink's negative error codes to POSIX
+            (*errcode) *= -1;
+        } else {
+            ret = 0;
+        }
+    }
+    return ret;
 }
 
-STATIC const mp_stream_p_t socket_stream_p = {
+STATIC mp_uint_t socket_write(mp_obj_t self_in, const void *buf, mp_uint_t size, int *errcode) {
+    mod_network_socket_obj_t *self = self_in;
+    mp_int_t ret = wlan_socket_send(self, buf, size, errcode);
+    if (ret < 0) {
+        ret = MP_STREAM_ERROR;
+        // needed to convert simplelink's negative error codes to POSIX
+        (*errcode) *= -1;
+    }
+    return ret;
+}
+
+STATIC mp_uint_t socket_ioctl(mp_obj_t self_in, mp_uint_t request, mp_uint_t arg, int *errcode) {
+    mod_network_socket_obj_t *self = self_in;
+    return wlan_socket_ioctl(self, request, arg, errcode);
+}
+
+const mp_stream_p_t socket_stream_p = {
+    .read = socket_read,
+    .write = socket_write,
     .ioctl = socket_ioctl,
     .is_text = false,
 };
@@ -384,28 +476,19 @@ STATIC mp_obj_t mod_usocket_getaddrinfo(mp_obj_t host_in, mp_obj_t port_in) {
     const char *host = mp_obj_str_get_data(host_in, &hlen);
     mp_int_t port = mp_obj_get_int(port_in);
 
-    // find a NIC that can do a name lookup
-    for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) {
-        mp_obj_t nic = MP_STATE_PORT(mod_network_nic_list).items[i];
-        mod_network_nic_type_t *nic_type = (mod_network_nic_type_t*)mp_obj_get_type(nic);
-        if (nic_type->gethostbyname != NULL) {
-            // Only IPv4 is supported
-            uint8_t out_ip[MOD_NETWORK_IPV4ADDR_BUF_SIZE];
-            int32_t result = nic_type->gethostbyname(nic, host, hlen, out_ip, AF_INET);
-            if (result != 0) {
-                nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(result)));
-            }
-            mp_obj_tuple_t *tuple = mp_obj_new_tuple(5, NULL);
-            tuple->items[0] = MP_OBJ_NEW_SMALL_INT(AF_INET);
-            tuple->items[1] = MP_OBJ_NEW_SMALL_INT(SOCK_STREAM);
-            tuple->items[2] = MP_OBJ_NEW_SMALL_INT(0);
-            tuple->items[3] = MP_OBJ_NEW_QSTR(MP_QSTR_);
-            tuple->items[4] = netutils_format_inet_addr(out_ip, port, NETUTILS_LITTLE);
-            return mp_obj_new_list(1, (mp_obj_t*)&tuple);
-        }
+    // ipv4 only
+    uint8_t out_ip[MOD_NETWORK_IPV4ADDR_BUF_SIZE];
+    int32_t result = wlan_gethostbyname(host, hlen, out_ip, AF_INET);
+    if (result < 0) {
+        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(-result)));
     }
-
-    nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    mp_obj_tuple_t *tuple = mp_obj_new_tuple(5, NULL);
+    tuple->items[0] = MP_OBJ_NEW_SMALL_INT(AF_INET);
+    tuple->items[1] = MP_OBJ_NEW_SMALL_INT(SOCK_STREAM);
+    tuple->items[2] = MP_OBJ_NEW_SMALL_INT(0);
+    tuple->items[3] = MP_OBJ_NEW_QSTR(MP_QSTR_);
+    tuple->items[4] = netutils_format_inet_addr(out_ip, port, NETUTILS_LITTLE);
+    return mp_obj_new_list(1, (mp_obj_t*)&tuple);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_usocket_getaddrinfo_obj, mod_usocket_getaddrinfo);
 
@@ -415,6 +498,10 @@ STATIC const mp_map_elem_t mp_module_usocket_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_socket),          (mp_obj_t)&socket_type },
     { MP_OBJ_NEW_QSTR(MP_QSTR_getaddrinfo),     (mp_obj_t)&mod_usocket_getaddrinfo_obj },
 
+    // class exceptions
+    { MP_OBJ_NEW_QSTR(MP_QSTR_error),           (mp_obj_t)&mp_type_OSError },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_timeout),         (mp_obj_t)&mp_type_TimeoutError },
+
     // class constants
     { MP_OBJ_NEW_QSTR(MP_QSTR_AF_INET),         MP_OBJ_NEW_SMALL_INT(AF_INET) },
     { MP_OBJ_NEW_QSTR(MP_QSTR_AF_INET6),        MP_OBJ_NEW_SMALL_INT(AF_INET6) },

cc3200/mods/modusocket.h

@@ -3,7 +3,6 @@
  *
  * The MIT License (MIT)
  *
- * Copyright (c) 2013, 2014 Damien P. George
  * Copyright (c) 2015 Daniel Campora
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -25,27 +24,16 @@
  * THE SOFTWARE.
  */
 
-#define WIPY_SD
+#ifndef MODUSOCKET_H_
+#define MODUSOCKET_H_
 
-#define MICROPY_HW_BOARD_NAME                       "WiPy-SD"
-#define MICROPY_HW_MCU_NAME                         "CC3200"
+extern const mp_obj_dict_t socket_locals_dict;
+extern const mp_stream_p_t socket_stream_p;
 
-#define MICROPY_HW_HAS_SDCARD                       (1)
-#define MICROPY_HW_ENABLE_RNG                       (1)
-#define MICROPY_HW_ENABLE_RTC                       (1)
+extern void modusocket_pre_init (void);
+extern void modusocket_socket_add (int16_t sd, bool user);
+extern void modusocket_socket_delete (int16_t sd);
+extern void modusocket_enter_sleep (void);
+extern void modusocket_close_all_user_sockets (void);
 
-#define MICROPY_STDIO_UART                          PYB_UART_0
-#define MICROPY_STDIO_UART_BAUD                     115200
-#define MICROPY_STDIO_UART_RX_BUF_SIZE              128
-
-#define MICROPY_SYS_LED_PRCM                        PRCM_GPIOA3
-#define MICROPY_SAFE_BOOT_PRCM                      PRCM_GPIOA3
-#define MICROPY_SYS_LED_PORT                        GPIOA3_BASE
-#define MICROPY_SAFE_BOOT_PORT                      GPIOA3_BASE
-#define MICROPY_SYS_LED_GPIO                        pin_GPIO25
-#define MICROPY_SYS_LED_PIN_NUM                     PIN_21      // GPIO25   (SOP2)
-#define MICROPY_SAFE_BOOT_PIN_NUM                   PIN_18      // GPIO28
-#define MICROPY_SYS_LED_PORT_PIN                    GPIO_PIN_1
-#define MICROPY_SAFE_BOOT_PORT_PIN                  GPIO_PIN_4
-
-#define MICROPY_PORT_SFLASH_BLOCK_COUNT             96
+#endif /* MODUSOCKET_H_ */

cc3200/mods/modussl.c

@@ -0,0 +1,155 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <std.h>
+
+#include "simplelink.h"
+#include "py/mpconfig.h"
+#include MICROPY_HAL_H
+#include "py/obj.h"
+#include "py/objstr.h"
+#include "py/runtime.h"
+#include "modnetwork.h"
+#include "modusocket.h"
+#include "mpexception.h"
+
+/******************************************************************************
+ DEFINE CONSTANTS
+ ******************************************************************************/
+#define SSL_CERT_NONE                          (0)
+#define SSL_CERT_OPTIONAL                      (1)
+#define SSL_CERT_REQUIRED                      (2)
+
+/******************************************************************************
+ DEFINE TYPES
+ ******************************************************************************/
+typedef struct _mp_obj_ssl_socket_t {
+    mp_obj_base_t base;
+    mod_network_socket_base_t sock_base;
+    mp_obj_t o_sock;
+} mp_obj_ssl_socket_t;
+
+/******************************************************************************
+ DECLARE PRIVATE DATA
+ ******************************************************************************/
+STATIC const mp_obj_type_t ssl_socket_type;
+
+/******************************************************************************/
+// Micro Python bindings; SSL class
+
+// ssl socket inherits from normal socket, so we take its
+// locals and stream methods
+STATIC const mp_obj_type_t ssl_socket_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_ussl,
+    .getiter = NULL,
+    .iternext = NULL,
+    .stream_p = &socket_stream_p,
+    .locals_dict = (mp_obj_t)&socket_locals_dict,
+};
+
+STATIC mp_obj_t mod_ssl_wrap_socket(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t allowed_args[] = {
+        { MP_QSTR_sock,             MP_ARG_REQUIRED | MP_ARG_OBJ,  },
+        { MP_QSTR_keyfile,          MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_obj = mp_const_none} },
+        { MP_QSTR_certfile,         MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_obj = mp_const_none} },
+        { MP_QSTR_server_side,      MP_ARG_KW_ONLY  | MP_ARG_BOOL, {.u_bool = false} },
+        { MP_QSTR_cert_reqs,        MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = SSL_CERT_NONE} },
+        { MP_QSTR_ca_certs,         MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_obj = mp_const_none} },
+    };
+
+    // parse arguments
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    // chech if ca validation is required
+    if (args[4].u_int != SSL_CERT_NONE && args[5].u_obj == mp_const_none) {
+        goto arg_error;
+    }
+
+    // retrieve the file paths (with an 6 byte offset because to strip the '/flash' prefix)
+    const char *keyfile  = (args[1].u_obj == mp_const_none) ? NULL : &(mp_obj_str_get_str(args[1].u_obj)[6]);
+    const char *certfile = (args[2].u_obj == mp_const_none) ? NULL : &(mp_obj_str_get_str(args[2].u_obj)[6]);
+    const char *cafile   = (args[5].u_obj == mp_const_none || args[4].u_int != SSL_CERT_REQUIRED) ?
+                           NULL : &(mp_obj_str_get_str(args[5].u_obj)[6]);
+
+    // server side requires both certfile and keyfile
+    if (args[3].u_bool && (!keyfile || !certfile)) {
+        goto arg_error;
+    }
+
+    _i16 sd = ((mod_network_socket_obj_t *)args[0].u_obj)->sock_base.sd;
+    _i16 _errno;
+    if (keyfile && (_errno = sl_SetSockOpt(sd, SL_SOL_SOCKET, SL_SO_SECURE_FILES_PRIVATE_KEY_FILE_NAME, keyfile, strlen(keyfile))) < 0) {
+        goto socket_error;
+    }
+    if (certfile && (_errno = sl_SetSockOpt(sd, SL_SOL_SOCKET, SL_SO_SECURE_FILES_CERTIFICATE_FILE_NAME, certfile, strlen(certfile))) < 0) {
+        goto socket_error;
+    }
+    if (cafile && (_errno = sl_SetSockOpt(sd, SL_SOL_SOCKET, SL_SO_SECURE_FILES_CA_FILE_NAME, cafile, strlen(cafile))) < 0) {
+        goto socket_error;
+    }
+
+    // create the ssl socket
+    mp_obj_ssl_socket_t *ssl_sock = m_new_obj(mp_obj_ssl_socket_t);
+    // ssl socket inherits all properties from the original socket
+    memcpy (&ssl_sock->sock_base, &((mod_network_socket_obj_t *)args[0].u_obj)->sock_base, sizeof(mod_network_socket_base_t));
+    ssl_sock->base.type = &ssl_socket_type;
+    ssl_sock->sock_base.cert_req = (args[4].u_int == SSL_CERT_REQUIRED) ? true : false;
+    ssl_sock->o_sock = args[0].u_obj;
+
+    return ssl_sock;
+
+socket_error:
+    nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
+
+arg_error:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(mod_ssl_wrap_socket_obj, 1, mod_ssl_wrap_socket);
+
+STATIC const mp_map_elem_t mp_module_ussl_globals_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__),            MP_OBJ_NEW_QSTR(MP_QSTR_ussl) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_wrap_socket),         (mp_obj_t)&mod_ssl_wrap_socket_obj },
+
+    // class exceptions
+    { MP_OBJ_NEW_QSTR(MP_QSTR_SSLError),            (mp_obj_t)&mp_type_OSError },
+
+    // class constants
+    { MP_OBJ_NEW_QSTR(MP_QSTR_CERT_NONE),           MP_OBJ_NEW_SMALL_INT(SSL_CERT_NONE) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_CERT_OPTIONAL),       MP_OBJ_NEW_SMALL_INT(SSL_CERT_OPTIONAL) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_CERT_REQUIRED),       MP_OBJ_NEW_SMALL_INT(SSL_CERT_REQUIRED) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(mp_module_ussl_globals, mp_module_ussl_globals_table);
+
+const mp_obj_module_t mp_module_ussl = {
+    .base = { &mp_type_module },
+    .name = MP_QSTR_ussl,
+    .globals = (mp_obj_dict_t*)&mp_module_ussl_globals,
+};
+

cc3200/mods/modutime.c

@@ -38,14 +38,20 @@
 #include "inc/hw_memmap.h"
 #include "rom_map.h"
 #include "prcm.h"
+#include "systick.h"
 #include "pybrtc.h"
+#include "mpsystick.h"
 #include "mpexception.h"
+#include "utils.h"
 
 /// \module time - time related functions
 ///
 /// The `time` module provides functions for getting the current time and date,
 /// and for sleeping.
 
+/******************************************************************************/
+// Micro Python bindings
+
 /// \function localtime([secs])
 /// Convert a time expressed in seconds since Jan 1, 2000 into an 8-tuple which
 /// contains: (year, month, mday, hour, minute, second, weekday, yearday)
@@ -73,11 +79,11 @@ STATIC mp_obj_t time_localtime(mp_uint_t n_args, const mp_obj_t *args) {
                 mp_obj_new_int(tm.tm_year),
                 mp_obj_new_int(tm.tm_mon),
                 mp_obj_new_int(tm.tm_mday),
-                mp_obj_new_int(tm.tm_wday),
                 mp_obj_new_int(tm.tm_hour),
                 mp_obj_new_int(tm.tm_min),
                 mp_obj_new_int(tm.tm_sec),
-                mp_obj_new_int(mseconds)
+                mp_obj_new_int(tm.tm_wday),
+                mp_obj_new_int(tm.tm_yday)
         };
         return mp_obj_new_tuple(8, tuple);
     } else {
@@ -99,13 +105,7 @@ STATIC mp_obj_t time_localtime(mp_uint_t n_args, const mp_obj_t *args) {
 }
 MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(time_localtime_obj, 0, 1, time_localtime);
 
-
-/// \function mktime()
-/// This is inverse function of localtime. It's argument is a full 8-tuple
-/// which expresses a time as per localtime. It returns an integer which is
-/// the number of seconds since Jan 1, 2000.
 STATIC mp_obj_t time_mktime(mp_obj_t tuple) {
-
     mp_uint_t len;
     mp_obj_t *elem;
 
@@ -116,41 +116,90 @@ STATIC mp_obj_t time_mktime(mp_obj_t tuple) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_num_type_invalid_arguments));
     }
 
-    return mp_obj_new_int_from_uint(timeutils_mktime(mp_obj_get_int(elem[0]),
-            mp_obj_get_int(elem[1]), mp_obj_get_int(elem[2]), mp_obj_get_int(elem[3]),
-            mp_obj_get_int(elem[4]), mp_obj_get_int(elem[5])));
-
+    return mp_obj_new_int_from_uint(timeutils_mktime(mp_obj_get_int(elem[0]), mp_obj_get_int(elem[1]), mp_obj_get_int(elem[2]),
+                                                     mp_obj_get_int(elem[3]), mp_obj_get_int(elem[4]), mp_obj_get_int(elem[5])));
 }
 MP_DEFINE_CONST_FUN_OBJ_1(time_mktime_obj, time_mktime);
 
+STATIC mp_obj_t time_time(void) {
+    return mp_obj_new_int(pyb_rtc_get_seconds());
+}
+MP_DEFINE_CONST_FUN_OBJ_0(time_time_obj, time_time);
 
-/// \function sleep(milliseconds)
-/// Sleep for the given number of milliseconds.
-STATIC mp_obj_t time_sleep(mp_obj_t milliseconds_o) {
-    HAL_Delay(mp_obj_get_int(milliseconds_o));
+STATIC mp_obj_t time_sleep(mp_obj_t seconds_o) {
+    int32_t sleep_s = mp_obj_get_int(seconds_o);
+    if (sleep_s > 0) {
+        HAL_Delay(sleep_s * 1000);
+    }
     return mp_const_none;
 }
 MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_obj, time_sleep);
 
-/// \function time()
-/// Returns the number of seconds, as an integer, since 1/1/2000.
-STATIC mp_obj_t time_time(void) {
-    uint32_t seconds;
-    uint16_t mseconds;
-
-    // get the seconds and the milliseconds from the RTC
-    MAP_PRCMRTCGet(&seconds, &mseconds);
-    return mp_obj_new_int(seconds);
+STATIC mp_obj_t time_sleep_ms (mp_obj_t ms_in) {
+    mp_int_t ms = mp_obj_get_int(ms_in);
+    if (ms > 0) {
+        HAL_Delay(ms);
+    }
+    return mp_const_none;
 }
-MP_DEFINE_CONST_FUN_OBJ_0(time_time_obj, time_time);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_ms_obj, time_sleep_ms);
+
+STATIC mp_obj_t time_sleep_us (mp_obj_t usec_in) {
+    mp_int_t usec = mp_obj_get_int(usec_in);
+    if (usec > 0) {
+        UtilsDelay(UTILS_DELAY_US_TO_COUNT(usec));
+    }
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_us_obj, time_sleep_us);
+
+STATIC mp_obj_t time_ticks_ms(void) {
+    // We want to "cast" the 32 bit unsigned into a small-int.  This means
+    // copying the MSB down 1 bit (extending the sign down), which is
+    // equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
+    return MP_OBJ_NEW_SMALL_INT(HAL_GetTick());
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_ms_obj, time_ticks_ms);
+
+STATIC mp_obj_t time_ticks_us(void) {
+    // We want to "cast" the 32 bit unsigned into a small-int.  This means
+    // copying the MSB down 1 bit (extending the sign down), which is
+    // equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
+    return MP_OBJ_NEW_SMALL_INT(sys_tick_get_microseconds());
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_us_obj, time_ticks_us);
+
+STATIC mp_obj_t time_ticks_cpu(void) {
+    // We want to "cast" the 32 bit unsigned into a small-int.  This means
+    // copying the MSB down 1 bit (extending the sign down), which is
+    // equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
+    return MP_OBJ_NEW_SMALL_INT(SysTickValueGet());
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_cpu_obj, time_ticks_cpu);
+
+STATIC mp_obj_t time_ticks_diff(mp_obj_t t0, mp_obj_t t1) {
+    // We want to "cast" the 32 bit unsigned into a small-int.  This means
+    // copying the MSB down 1 bit (extending the sign down), which is
+    // equivalent to just using the MP_OBJ_NEW_SMALL_INT macro.
+    uint32_t start = mp_obj_get_int(t0);
+    uint32_t end = mp_obj_get_int(t1);
+    return MP_OBJ_NEW_SMALL_INT((end > start) ? (end - start) : (start - end));
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(time_ticks_diff_obj, time_ticks_diff);
 
 STATIC const mp_map_elem_t time_module_globals_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_utime) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__),        MP_OBJ_NEW_QSTR(MP_QSTR_utime) },
 
-    { MP_OBJ_NEW_QSTR(MP_QSTR_localtime), (mp_obj_t)&time_localtime_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_mktime), (mp_obj_t)&time_mktime_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep), (mp_obj_t)&time_sleep_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_time), (mp_obj_t)&time_time_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_localtime),       (mp_obj_t)&time_localtime_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_mktime),          (mp_obj_t)&time_mktime_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_time),            (mp_obj_t)&time_time_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep),           (mp_obj_t)&time_sleep_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_ms),        (mp_obj_t)&time_sleep_ms_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_us),        (mp_obj_t)&time_sleep_us_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_ms),        (mp_obj_t)&time_ticks_ms_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_us),        (mp_obj_t)&time_ticks_us_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_cpu),       (mp_obj_t)&time_ticks_cpu_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_diff),      (mp_obj_t)&time_ticks_diff_obj },
 };
 
 STATIC MP_DEFINE_CONST_DICT(time_module_globals, time_module_globals_table);

cc3200/mods/modwlan.h

@@ -43,7 +43,7 @@ typedef enum {
     MODWLAN_ERROR_INVALID_PARAMS = -1,
     MODWLAN_ERROR_TIMEOUT = -2,
     MODWLAN_ERROR_UNKNOWN = -3,
-}modwlan_Status_t;
+} modwlan_Status_t;
 
 /******************************************************************************
  DECLARE PUBLIC DATA
@@ -54,13 +54,30 @@ extern _SlLockObj_t wlan_LockObj;
  DECLARE PUBLIC FUNCTIONS
  ******************************************************************************/
 extern void wlan_pre_init (void);
-extern modwlan_Status_t wlan_sl_enable (SlWlanMode_t mode, const char *ssid, uint8_t ssid_len, uint8_t sec,
-                                        const char *key, uint8_t key_len, uint8_t channel);
+extern void wlan_sl_enable (int8_t mode, const char *ssid, uint8_t ssid_len, uint8_t sec,
+                            const char *key, uint8_t key_len, uint8_t channel, bool append_mac);
 extern void wlan_first_start (void);
 extern void wlan_update(void);
 extern void wlan_stop (uint32_t timeout);
 extern void wlan_start (void);
 extern void wlan_get_mac (uint8_t *macAddress);
 extern void wlan_get_ip (uint32_t *ip);
+extern bool wlan_is_connected (void);
+extern void wlan_set_current_time (uint32_t seconds_since_2000);
+
+extern int wlan_gethostbyname(const char *name, mp_uint_t len, uint8_t *out_ip, uint8_t family);
+extern int wlan_socket_socket(mod_network_socket_obj_t *s, int *_errno);
+extern void wlan_socket_close(mod_network_socket_obj_t *s);
+extern int wlan_socket_bind(mod_network_socket_obj_t *s, byte *ip, mp_uint_t port, int *_errno);
+extern int wlan_socket_listen(mod_network_socket_obj_t *s, mp_int_t backlog, int *_errno);
+extern int wlan_socket_accept(mod_network_socket_obj_t *s, mod_network_socket_obj_t *s2, byte *ip, mp_uint_t *port, int *_errno);
+extern int wlan_socket_connect(mod_network_socket_obj_t *s, byte *ip, mp_uint_t port, int *_errno);
+extern int wlan_socket_send(mod_network_socket_obj_t *s, const byte *buf, mp_uint_t len, int *_errno);
+extern int wlan_socket_recv(mod_network_socket_obj_t *s, byte *buf, mp_uint_t len, int *_errno);
+extern int wlan_socket_sendto( mod_network_socket_obj_t *s, const byte *buf, mp_uint_t len, byte *ip, mp_uint_t port, int *_errno);
+extern int wlan_socket_recvfrom(mod_network_socket_obj_t *s, byte *buf, mp_uint_t len, byte *ip, mp_uint_t *port, int *_errno);
+extern int wlan_socket_setsockopt(mod_network_socket_obj_t *s, mp_uint_t level, mp_uint_t opt, const void *optval, mp_uint_t optlen, int *_errno);
+extern int wlan_socket_settimeout(mod_network_socket_obj_t *s, mp_uint_t timeout_s, int *_errno);
+extern int wlan_socket_ioctl (mod_network_socket_obj_t *s, mp_uint_t request, mp_uint_t arg, int *_errno);
 
 #endif /* MODWLAN_H_ */

cc3200/mods/pybadc.c

@@ -52,19 +52,6 @@
 #include "mpexception.h"
 
 
-/// \moduleref pyb
-/// \class ADC - analog to digital conversion: read analog values on a pin
-///
-/// Usage:
-///
-///     adc = pyb.ADC(channel)                # create an adc object on the given channel (0 to 3)
-///                                             this automatically configures the pin associated to
-///                                             that analog channel.
-///     adc.read()                            # read channel value
-///
-///     The sample rate is fixed to 62.5KHz and the resolution to 12 bits.
-
-
 /******************************************************************************
  DECLARE CONSTANTS
  ******************************************************************************/
@@ -75,129 +62,177 @@
  ******************************************************************************/
 typedef struct {
     mp_obj_base_t base;
-    byte channel;
-    byte num;
+    bool enabled;
 } pyb_adc_obj_t;
 
+typedef struct {
+    mp_obj_base_t base;
+    pin_obj_t *pin;
+    byte channel;
+    byte id;
+    bool enabled;
+} pyb_adc_channel_obj_t;
+
+
+/******************************************************************************
+ DECLARE PRIVATE DATA
+ ******************************************************************************/
+STATIC pyb_adc_channel_obj_t pyb_adc_channel_obj[PYB_ADC_NUM_CHANNELS] = { {.pin = &pin_GP2, .channel = ADC_CH_0, .id = 0, .enabled = false},
+                                                                           {.pin = &pin_GP3, .channel = ADC_CH_1, .id = 1, .enabled = false},
+                                                                           {.pin = &pin_GP4, .channel = ADC_CH_2, .id = 2, .enabled = false},
+                                                                           {.pin = &pin_GP5, .channel = ADC_CH_3, .id = 3, .enabled = false} };
+STATIC pyb_adc_obj_t pyb_adc_obj = {.enabled = false};
+
+STATIC const mp_obj_type_t pyb_adc_channel_type;
+
+/******************************************************************************
+ DECLARE PRIVATE FUNCTIONS
+ ******************************************************************************/
+STATIC mp_obj_t adc_channel_deinit(mp_obj_t self_in);
+
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
  ******************************************************************************/
-STATIC void pybadc_init (pyb_adc_obj_t *self) {
-    // enable the ADC channel
-    MAP_ADCChannelEnable(ADC_BASE, self->channel);
+STATIC void pyb_adc_init (pyb_adc_obj_t *self) {
     // enable and configure the timer
     MAP_ADCTimerConfig(ADC_BASE, (1 << 17) - 1);
     MAP_ADCTimerEnable(ADC_BASE);
     // enable the ADC peripheral
     MAP_ADCEnable(ADC_BASE);
+    self->enabled = true;
 }
 
-/******************************************************************************
- DECLARE PRIVATE DATA
- ******************************************************************************/
-STATIC pyb_adc_obj_t pyb_adc_obj[PYB_ADC_NUM_CHANNELS];
+STATIC void pyb_adc_check_init(void) {
+    // not initialized
+    if (!pyb_adc_obj.enabled) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+}
+
+STATIC void pyb_adc_channel_init (pyb_adc_channel_obj_t *self) {
+    // the ADC block must be enabled first
+    pyb_adc_check_init();
+    // configure the pin in analog mode
+    pin_config (self->pin, -1, PIN_TYPE_ANALOG, PIN_TYPE_STD, -1, PIN_STRENGTH_2MA);
+    // enable the ADC channel
+    MAP_ADCChannelEnable(ADC_BASE, self->channel);
+    self->enabled = true;
+}
+
+STATIC void pyb_adc_deinit_all_channels (void) {
+    for (int i = 0; i < PYB_ADC_NUM_CHANNELS; i++) {
+        adc_channel_deinit(&pyb_adc_channel_obj[i]);
+    }
+}
 
 /******************************************************************************/
 /* Micro Python bindings : adc object                                         */
 
 STATIC void adc_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
     pyb_adc_obj_t *self = self_in;
-    mp_printf(print, "<ADC, channel=%u>", self->num);
+    if (self->enabled) {
+        mp_printf(print, "ADC(0, bits=12)");
+    } else {
+        mp_printf(print, "ADC(0)");
+    }
 }
 
-/// \classmethod \constructor(channel)
-/// Create an ADC object associated with the given channel.
-/// This allows you to then read analog values on that pin.
-STATIC mp_obj_t adc_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
-    // check number of arguments
-    mp_arg_check_num(n_args, n_kw, 1, 1, false);
+STATIC const mp_arg_t pyb_adc_init_args[] = {
+    { MP_QSTR_id,                          MP_ARG_INT, {.u_int = 0} },
+    { MP_QSTR_bits,       MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 12} },
+};
+STATIC mp_obj_t adc_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // parse args
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_adc_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_adc_init_args, args);
 
-    // the first argument is the channel number
-    uint num = mp_obj_get_int(args[0]);
-    const pin_obj_t *pin;
-    uint channel;
-    switch (num) {
-    case 0:
-        channel = ADC_CH_0;
-        pin = &pin_GPIO2;
-        break;
-    case 1:
-        channel = ADC_CH_1;
-        pin = &pin_GPIO3;
-        break;
-    case 2:
-        channel = ADC_CH_2;
-        pin = &pin_GPIO4;
-        break;
-    case 3:
-        channel = ADC_CH_3;
-        pin = &pin_GPIO5;
-        break;
-    default:
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
-        break;
+    // check the peripheral id
+    if (args[0].u_int != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
     }
 
-    // disable the callback before re-configuring
-    pyb_adc_obj_t *self = &pyb_adc_obj[channel];
+    // check the number of bits
+    if (args[1].u_int != 12) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+
+    // setup the object
+    pyb_adc_obj_t *self = &pyb_adc_obj;
     self->base.type = &pyb_adc_type;
-    self->channel = channel;
-    self->num = num;
-
-    // configure the pin in analog mode
-    pin_config ((pin_obj_t *)pin, PIN_MODE_0, GPIO_DIR_MODE_IN, PYBPIN_ANALOG_TYPE, PIN_STRENGTH_2MA);
-
-    // initialize it
-    pybadc_init (self);
-
-    // register it with the sleep module
-    pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pybadc_init);
 
+    // initialize and register with the sleep module
+    pyb_adc_init(self);
+    pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pyb_adc_init);
     return self;
 }
 
-/// \method read()
-/// Read the value on the analog pin and return it.  The returned value
-/// will be between 0 and 4095.
-STATIC mp_obj_t adc_read(mp_obj_t self_in) {
-    pyb_adc_obj_t *self = self_in;
-    uint32_t sample;
-
-    // wait until a new value is available
-    while (!MAP_ADCFIFOLvlGet(ADC_BASE, self->channel));
-    // read the sample
-    sample = MAP_ADCFIFORead(ADC_BASE, self->channel);
-    // the 12 bit sampled value is stored in bits [13:2]
-    return MP_OBJ_NEW_SMALL_INT((sample & 0x3FFF) >> 2);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_read_obj, adc_read);
-
-/// \method enable()
-/// Enable the adc channel
-STATIC mp_obj_t adc_enable(mp_obj_t self_in) {
-    pyb_adc_obj_t *self = self_in;
-
-    pybadc_init(self);
+STATIC mp_obj_t adc_init(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_adc_init_args) - 1];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &pyb_adc_init_args[1], args);
+    // check the number of bits
+    if (args[0].u_int != 12) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+    pyb_adc_init(pos_args[0]);
     return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_enable_obj, adc_enable);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(adc_init_obj, 1, adc_init);
 
-/// \method disable()
-/// Disable the adc channel
-STATIC mp_obj_t adc_disable(mp_obj_t self_in) {
+STATIC mp_obj_t adc_deinit(mp_obj_t self_in) {
     pyb_adc_obj_t *self = self_in;
-
-    MAP_ADCChannelDisable(ADC_BASE, self->channel);
+    // first deinit all channels
+    pyb_adc_deinit_all_channels();
+    MAP_ADCDisable(ADC_BASE);
+    self->enabled = false;
     // unregister it with the sleep module
     pybsleep_remove ((const mp_obj_t)self);
     return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_disable_obj, adc_disable);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_deinit_obj, adc_deinit);
+
+STATIC mp_obj_t adc_channel(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t pyb_adc_channel_args[] = {
+        { MP_QSTR_id,                          MP_ARG_OBJ, {.u_obj = mp_const_none} },
+        { MP_QSTR_pin,        MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+    };
+
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_adc_channel_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), pyb_adc_channel_args, args);
+
+    uint ch_id;
+    if (args[0].u_obj != mp_const_none) {
+        ch_id = mp_obj_get_int(args[0].u_obj);
+        if (ch_id >= PYB_ADC_NUM_CHANNELS) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_os_resource_not_avaliable));
+        }
+        else if (args[1].u_obj != mp_const_none) {
+            uint pin_ch_id = pin_find_peripheral_type (args[1].u_obj, PIN_FN_ADC, 0);
+            if (ch_id != pin_ch_id) {
+                nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+            }
+        }
+    } else {
+        ch_id = pin_find_peripheral_type (args[1].u_obj, PIN_FN_ADC, 0);
+    }
+
+    // setup the object
+    pyb_adc_channel_obj_t *self = &pyb_adc_channel_obj[ch_id];
+    self->base.type = &pyb_adc_channel_type;
+    pyb_adc_channel_init (self);
+    // register it with the sleep module
+    pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pyb_adc_channel_init);
+    return self;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(adc_channel_obj, 1, adc_channel);
 
 STATIC const mp_map_elem_t adc_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR_read),                (mp_obj_t)&adc_read_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_enable),              (mp_obj_t)&adc_enable_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_disable),             (mp_obj_t)&adc_disable_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_init),                (mp_obj_t)&adc_init_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),              (mp_obj_t)&adc_deinit_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_channel),             (mp_obj_t)&adc_channel_obj },
 };
 
 STATIC MP_DEFINE_CONST_DICT(adc_locals_dict, adc_locals_dict_table);
@@ -210,3 +245,69 @@ const mp_obj_type_t pyb_adc_type = {
     .locals_dict = (mp_obj_t)&adc_locals_dict,
 };
 
+STATIC void adc_channel_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
+    pyb_adc_channel_obj_t *self = self_in;
+    if (self->enabled) {
+        mp_printf(print, "ADCChannel(%u, pin=%q)", self->id, self->pin->name);
+    } else {
+        mp_printf(print, "ADCChannel(%u)", self->id);
+    }
+}
+
+STATIC mp_obj_t adc_channel_init(mp_obj_t self_in) {
+    pyb_adc_channel_obj_t *self = self_in;
+    // re-enable it
+    pyb_adc_channel_init(self);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_channel_init_obj, adc_channel_init);
+
+STATIC mp_obj_t adc_channel_deinit(mp_obj_t self_in) {
+    pyb_adc_channel_obj_t *self = self_in;
+
+    MAP_ADCChannelDisable(ADC_BASE, self->channel);
+    // unregister it with the sleep module
+    pybsleep_remove ((const mp_obj_t)self);
+    self->enabled = false;
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_channel_deinit_obj, adc_channel_deinit);
+
+STATIC mp_obj_t adc_channel_value(mp_obj_t self_in) {
+    pyb_adc_channel_obj_t *self = self_in;
+    uint32_t value;
+
+    // the channel must be enabled
+    if (!self->enabled) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+
+    // wait until a new value is available
+    while (!MAP_ADCFIFOLvlGet(ADC_BASE, self->channel));
+    // read the sample
+    value = MAP_ADCFIFORead(ADC_BASE, self->channel);
+    // the 12 bit sampled value is stored in bits [13:2]
+    return MP_OBJ_NEW_SMALL_INT((value & 0x3FFF) >> 2);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(adc_channel_value_obj, adc_channel_value);
+
+STATIC mp_obj_t adc_channel_call(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    mp_arg_check_num(n_args, n_kw, 0, 0, false);
+    return adc_channel_value (self_in);
+}
+
+STATIC const mp_map_elem_t adc_channel_locals_dict_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR_init),                (mp_obj_t)&adc_channel_init_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),              (mp_obj_t)&adc_channel_deinit_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_value),               (mp_obj_t)&adc_channel_value_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(adc_channel_locals_dict, adc_channel_locals_dict_table);
+
+STATIC const mp_obj_type_t pyb_adc_channel_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_ADCChannel,
+    .print = adc_channel_print,
+    .call = adc_channel_call,
+    .locals_dict = (mp_obj_t)&adc_channel_locals_dict,
+};

cc3200/mods/pybi2c.c

@@ -44,51 +44,11 @@
 #include "mpexception.h"
 #include "pybsleep.h"
 #include "utils.h"
+#include "pybpin.h"
+#include "pins.h"
 
 /// \moduleref pyb
 /// \class I2C - a two-wire serial protocol
-///
-/// I2C is a two-wire protocol for communicating between devices.  At the physical
-/// level it consists of 2 wires: SCL and SDA, the clock and data lines respectively.
-///
-/// I2C objects are created attached to a specific bus.  They can be initialised
-/// when created, or initialised later on:
-///
-///     from pyb import I2C
-///
-///     i2c = I2C()                          # create
-///     i2c = I2C(50000)                     # create and init with a 50KHz baudrate
-///     i2c.init(100000)                     # init with a 100KHz baudrate
-///     i2c.deinit()                         # turn off the peripheral
-///
-/// Printing the i2c object gives you information about its configuration.
-///
-/// Basic methods for slave are send and recv:
-///
-///     i2c.send('abc')      # send 3 bytes
-///     i2c.send(0x42)       # send a single byte, given by the number
-///     data = i2c.recv(3)   # receive 3 bytes
-///
-/// To receive inplace, first create a bytearray:
-///
-///     data = bytearray(3)  # create a buffer
-///     i2c.recv(data)       # receive 3 bytes, writing them into data
-///
-/// A master must specify the recipient's address:
-///
-///     i2c.init(100000)
-///     i2c.send('123', 0x42)        # send 3 bytes to slave with address 0x42
-///     i2c.send(b'456', addr=0x42)  # keyword for address
-///
-/// Master also has other methods:
-///
-///     i2c.is_ready(0x42)              # check if slave 0x42 is ready
-///     i2c.scan()                      # scan for slaves on the bus, returning
-///                                     #   a list of valid addresses
-///     i2c.mem_read(3, 0x42, 2)        # read 3 bytes from memory of slave 0x42,
-///                                     #   starting at address 2 in the slave
-///     i2c.mem_write('abc', 0x42, 2)   # write 3 bytes to memory of slave 0x42,
-///                                     #   starting at address 2 in the slave
 
 typedef struct _pyb_i2c_obj_t {
     mp_obj_base_t base;
@@ -98,6 +58,8 @@ typedef struct _pyb_i2c_obj_t {
 /******************************************************************************
  DEFINE CONSTANTS
  ******************************************************************************/
+#define PYBI2C_MASTER                          (0)
+
 #define PYBI2C_MIN_BAUD_RATE_HZ                (50000)
 #define PYBI2C_MAX_BAUD_RATE_HZ                (400000)
 
@@ -117,6 +79,8 @@ typedef struct _pyb_i2c_obj_t {
  ******************************************************************************/
 STATIC pyb_i2c_obj_t pyb_i2c_obj = {.baudrate = 0};
 
+STATIC const mp_obj_t pyb_i2c_def_pin[2] = {&pin_GP13, &pin_GP23};
+
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/
@@ -173,9 +137,60 @@ STATIC bool pyb_i2c_transaction(uint cmd) {
     return true;
 }
 
-STATIC bool pyb_i2c_write(byte devAddr, byte *data, uint len, bool stop) {
+STATIC void pyb_i2c_check_init(pyb_i2c_obj_t *self) {
+    // not initialized
+    if (!self->baudrate) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+}
+
+STATIC bool pyb_i2c_scan_device(byte devAddr) {
     // Set I2C codec slave address
-    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, devAddr, false);
+    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, devAddr, true);
+    // Initiate the transfer.
+    RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_SINGLE_RECEIVE));
+    // Since this is a hack, send the stop bit anyway
+    MAP_I2CMasterControl(I2CA0_BASE, I2C_MASTER_CMD_BURST_SEND_ERROR_STOP);
+    return true;
+}
+
+STATIC bool pyb_i2c_mem_addr_write (byte addr, byte *mem_addr, uint mem_addr_len) {
+    // Set I2C codec slave address
+    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, addr, false);
+    // Write the first byte to the controller.
+    MAP_I2CMasterDataPut(I2CA0_BASE, *mem_addr++);
+    // Initiate the transfer.
+    RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_SEND_START));
+
+    // Loop until the completion of transfer or error
+    while (--mem_addr_len) {
+        // Write the next byte of data
+        MAP_I2CMasterDataPut(I2CA0_BASE, *mem_addr++);
+        // Transact over I2C to send the next byte
+        RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_SEND_CONT));
+    }
+    return true;
+}
+
+STATIC bool pyb_i2c_mem_write (byte addr, byte *mem_addr, uint mem_addr_len, byte *data, uint data_len) {
+    if (pyb_i2c_mem_addr_write (addr, mem_addr, mem_addr_len)) {
+        // Loop until the completion of transfer or error
+        while (data_len--) {
+            // Write the next byte of data
+            MAP_I2CMasterDataPut(I2CA0_BASE, *data++);
+            // Transact over I2C to send the byte
+            RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_SEND_CONT));
+        }
+        // send the stop bit
+        RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_SEND_STOP));
+        return true;
+    }
+    return false;
+}
+
+STATIC bool pyb_i2c_write(byte addr, byte *data, uint len, bool stop) {
+    // Set I2C codec slave address
+    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, addr, false);
     // Write the first byte to the controller.
     MAP_I2CMasterDataPut(I2CA0_BASE, *data++);
     // Initiate the transfer.
@@ -189,34 +204,20 @@ STATIC bool pyb_i2c_write(byte devAddr, byte *data, uint len, bool stop) {
         RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_SEND_CONT));
     }
 
-    // If a stop bit is to be sent, send it.
+    // If a stop bit is to be sent, do it.
     if (stop) {
         RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_SEND_STOP));
     }
-
     return true;
 }
 
-STATIC bool pyb_i2c_read(byte devAddr, byte *data, uint len) {
-    uint cmd;
-
+STATIC bool pyb_i2c_read(byte addr, byte *data, uint len) {
+    // Initiate a burst or single receive sequence
+    uint cmd = --len > 0 ? I2C_MASTER_CMD_BURST_RECEIVE_START : I2C_MASTER_CMD_SINGLE_RECEIVE;
     // Set I2C codec slave address
-    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, devAddr, true);
-
-    // Check if its a single receive or burst receive
-    if (len > 1) {
-        // Initiate a burst receive sequence
-        cmd = I2C_MASTER_CMD_BURST_RECEIVE_START;
-    }
-    else {
-        // Configure for a single receive
-        cmd = I2C_MASTER_CMD_SINGLE_RECEIVE;
-    }
-
+    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, addr, true);
     // Initiate the transfer.
     RET_IF_ERR(pyb_i2c_transaction(cmd));
-    // Decrement the count
-    len--;
     // Loop until the completion of reception or error
     while (len) {
         // Receive the byte over I2C
@@ -224,8 +225,7 @@ STATIC bool pyb_i2c_read(byte devAddr, byte *data, uint len) {
         if (--len) {
             // Continue with reception
             RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_RECEIVE_CONT));
-        }
-        else {
+        } else {
             // Complete the last reception
             RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_BURST_RECEIVE_FINISH));
         }
@@ -233,34 +233,77 @@ STATIC bool pyb_i2c_read(byte devAddr, byte *data, uint len) {
 
     // Receive the last byte over I2C
     *data = MAP_I2CMasterDataGet(I2CA0_BASE);
-
     return true;
 }
 
-STATIC bool pyb_i2c_scan_device(byte devAddr) {
-    // Set I2C codec slave address
-    MAP_I2CMasterSlaveAddrSet(I2CA0_BASE, devAddr, true);
-    // Initiate the transfer.
-    RET_IF_ERR(pyb_i2c_transaction(I2C_MASTER_CMD_SINGLE_RECEIVE));
-    // Since this is a hack, send the stop bit anyway
-    MAP_I2CMasterControl(I2CA0_BASE, I2C_MASTER_CMD_BURST_SEND_ERROR_STOP);
+STATIC void pyb_i2c_read_into (mp_arg_val_t *args, vstr_t *vstr) {
+    pyb_i2c_check_init(&pyb_i2c_obj);
+    // get the buffer to receive into
+    pyb_buf_get_for_recv(args[1].u_obj, vstr);
 
-    return true;
+    // receive the data
+    if (!pyb_i2c_read(args[0].u_int, (byte *)vstr->buf, vstr->len)) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
+    }
+}
+
+STATIC void pyb_i2c_readmem_into (mp_arg_val_t *args, vstr_t *vstr) {
+    pyb_i2c_check_init(&pyb_i2c_obj);
+    // get the buffer to receive into
+    pyb_buf_get_for_recv(args[2].u_obj, vstr);
+
+    // get the addresses
+    mp_uint_t i2c_addr = args[0].u_int;
+    mp_uint_t mem_addr = args[1].u_int;
+    // determine the width of mem_addr (1 or 2 bytes)
+    mp_uint_t mem_addr_size = args[3].u_int >> 3;
+
+    // write the register address to be read from
+    if (pyb_i2c_mem_addr_write (i2c_addr, (byte *)&mem_addr, mem_addr_size)) {
+        // Read the specified length of data
+        if (!pyb_i2c_read (i2c_addr, (byte *)vstr->buf, vstr->len)) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
+        }
+    }
 }
 
 /******************************************************************************/
 /* Micro Python bindings                                                      */
 /******************************************************************************/
-
-/// \method init(100000)
-///
-/// Initialise the I2C bus as a master with the given baudrate.
-///
-STATIC mp_obj_t pyb_i2c_init_helper(pyb_i2c_obj_t *self_in, mp_obj_t baudrate) {
+STATIC void pyb_i2c_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
     pyb_i2c_obj_t *self = self_in;
+    if (self->baudrate > 0) {
+        mp_printf(print, "I2C(0, I2C.MASTER, baudrate=%u)", self->baudrate);
+    } else {
+        mp_print_str(print, "I2C(0)");
+    }
+}
+
+STATIC mp_obj_t pyb_i2c_init_helper(pyb_i2c_obj_t *self, const mp_arg_val_t *args) {
+    // verify that mode is master
+    if (args[0].u_int != PYBI2C_MASTER) {
+        goto invalid_args;
+    }
 
     // make sure the baudrate is between the valid range
-    self->baudrate = MIN(MAX(mp_obj_get_int(baudrate), PYBI2C_MIN_BAUD_RATE_HZ), PYBI2C_MAX_BAUD_RATE_HZ);
+    self->baudrate = MIN(MAX(args[1].u_int, PYBI2C_MIN_BAUD_RATE_HZ), PYBI2C_MAX_BAUD_RATE_HZ);
+
+    // assign the pins
+    mp_obj_t pins_o = args[2].u_obj;
+    if (pins_o != mp_const_none) {
+        mp_obj_t *pins;
+        mp_uint_t n_pins = 2;
+        if (pins_o == MP_OBJ_NULL) {
+            // use the default pins
+            pins = (mp_obj_t *)pyb_i2c_def_pin;
+        } else {
+            mp_obj_get_array(pins_o, &n_pins, &pins);
+            if (n_pins != 2) {
+                goto invalid_args;
+            }
+        }
+        pin_assign_pins_af (pins, n_pins, PIN_TYPE_STD_PU, PIN_FN_I2C, 0);
+    }
 
     // init the I2C bus
     i2c_init(self);
@@ -269,48 +312,47 @@ STATIC mp_obj_t pyb_i2c_init_helper(pyb_i2c_obj_t *self_in, mp_obj_t baudrate) {
     pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)i2c_init);
 
     return mp_const_none;
+
+invalid_args:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
 }
 
-/// \classmethod \constructor(bus, ...)
-///
-/// Construct an I2C object on the given bus.  `bus` can only be 0.
-/// With no additional parameters, the I2C object is created but not
-/// initialised (it has the settings from the last initialisation of
-/// the bus, if any).  If extra arguments are given, the bus is initialised.
-/// See `init` for parameters of initialisation.
-STATIC mp_obj_t pyb_i2c_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
-    // check arguments
-    mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
+STATIC const mp_arg_t pyb_i2c_init_args[] = {
+    { MP_QSTR_id,                          MP_ARG_INT, {.u_int = 0} },
+    { MP_QSTR_mode,                        MP_ARG_INT, {.u_int = PYBI2C_MASTER} },
+    { MP_QSTR_baudrate, MP_ARG_KW_ONLY   | MP_ARG_INT, {.u_int = 100000} },
+    { MP_QSTR_pins,     MP_ARG_KW_ONLY   | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+};
+STATIC mp_obj_t pyb_i2c_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // parse args
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_i2c_init_args, args);
+
+    // check the peripheral id
+    if (args[0].u_int != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
 
     // setup the object
     pyb_i2c_obj_t *self = &pyb_i2c_obj;
     self->base.type = &pyb_i2c_type;
 
-    if (n_args > 0) {
-        // start the peripheral
-        pyb_i2c_init_helper(self, *args);
-    }
+    // start the peripheral
+    pyb_i2c_init_helper(self, &args[1]);
 
     return (mp_obj_t)self;
 }
 
-STATIC void pyb_i2c_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
-    pyb_i2c_obj_t *self = self_in;
-    if (self->baudrate > 0) {
-        mp_printf(print, "<I2C0, I2C.MASTER, baudrate=%u>)", self->baudrate);
-    }
-    else {
-        mp_print_str(print, "<I2C0>");
-    }
+STATIC mp_obj_t pyb_i2c_init(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_init_args) - 1];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &pyb_i2c_init_args[1], args);
+    return pyb_i2c_init_helper(pos_args[0], args);
 }
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_init_obj, 1, pyb_i2c_init);
 
-STATIC mp_obj_t pyb_i2c_init(mp_obj_t self_in, mp_obj_t baudrate) {
-    return pyb_i2c_init_helper(self_in, baudrate);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_i2c_init_obj, pyb_i2c_init);
-
-/// \method deinit()
-/// Turn off the I2C bus.
 STATIC mp_obj_t pyb_i2c_deinit(mp_obj_t self_in) {
     // disable the peripheral
     MAP_I2CMasterDisable(I2CA0_BASE);
@@ -323,23 +365,8 @@ STATIC mp_obj_t pyb_i2c_deinit(mp_obj_t self_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_i2c_deinit_obj, pyb_i2c_deinit);
 
-/// \method is_ready(addr)
-/// Check if an I2C device responds to the given address.  Only valid when in master mode.
-STATIC mp_obj_t pyb_i2c_is_ready(mp_obj_t self_in, mp_obj_t i2c_addr_o) {
-    mp_uint_t i2c_addr = mp_obj_get_int(i2c_addr_o);
-    for (int i = 0; i < 7; i++) {
-        if (pyb_i2c_scan_device(i2c_addr)) {
-            return mp_const_true;
-        }
-    }
-    return mp_const_false;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_i2c_is_ready_obj, pyb_i2c_is_ready);
-
-/// \method scan()
-/// Scan all I2C addresses from 0x01 to 0x7f and return a list of those that respond.
-/// Only valid when in master mode.
 STATIC mp_obj_t pyb_i2c_scan(mp_obj_t self_in) {
+    pyb_i2c_check_init(&pyb_i2c_obj);
     mp_obj_t list = mp_obj_new_list(0, NULL);
     for (uint addr = 1; addr <= 127; addr++) {
         for (int i = 0; i < 7; i++) {
@@ -349,186 +376,153 @@ STATIC mp_obj_t pyb_i2c_scan(mp_obj_t self_in) {
             }
         }
     }
-
     return list;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_i2c_scan_obj, pyb_i2c_scan);
 
-/// \method send(send, addr=0x00)
-/// Send data on the bus:
-///
-///   - `send` is the data to send (an integer to send, or a buffer object)
-///   - `addr` is the address to send to (only required in master mode)
-/// Return value: `None`.
-STATIC const mp_arg_t pyb_i2c_send_args[] = {
-    { MP_QSTR_send,    MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
-    { MP_QSTR_addr,                      MP_ARG_INT, {.u_int = 0} },
-};
-#define PYB_I2C_SEND_NUM_ARGS MP_ARRAY_SIZE(pyb_i2c_send_args)
+STATIC mp_obj_t pyb_i2c_readfrom(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t pyb_i2c_readfrom_args[] = {
+        { MP_QSTR_addr,    MP_ARG_REQUIRED | MP_ARG_INT, },
+        { MP_QSTR_nbytes,  MP_ARG_REQUIRED | MP_ARG_OBJ, },
+    };
 
-STATIC mp_obj_t pyb_i2c_send(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
     // parse args
-    mp_arg_val_t vals[PYB_I2C_SEND_NUM_ARGS];
-    mp_arg_parse_all(n_args - 1, args + 1, kw_args, PYB_I2C_SEND_NUM_ARGS, pyb_i2c_send_args, vals);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_readfrom_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), pyb_i2c_readfrom_args, args);
+
+    vstr_t vstr;
+    pyb_i2c_read_into(args, &vstr);
+
+    // return the received data
+    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_readfrom_obj, 3, pyb_i2c_readfrom);
+
+STATIC mp_obj_t pyb_i2c_readfrom_into(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t pyb_i2c_readfrom_into_args[] = {
+        { MP_QSTR_addr,    MP_ARG_REQUIRED | MP_ARG_INT, },
+        { MP_QSTR_buf,     MP_ARG_REQUIRED | MP_ARG_OBJ, },
+    };
+
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_readfrom_into_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), pyb_i2c_readfrom_into_args, args);
+
+    vstr_t vstr;
+    pyb_i2c_read_into(args, &vstr);
+
+    // return the number of bytes received
+    return mp_obj_new_int(vstr.len);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_readfrom_into_obj, 3, pyb_i2c_readfrom_into);
+
+STATIC mp_obj_t pyb_i2c_writeto(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t pyb_i2c_writeto_args[] = {
+        { MP_QSTR_addr,    MP_ARG_REQUIRED | MP_ARG_INT,  },
+        { MP_QSTR_buf,     MP_ARG_REQUIRED | MP_ARG_OBJ,  },
+        { MP_QSTR_stop,    MP_ARG_KW_ONLY  | MP_ARG_BOOL, {.u_bool = true} },
+    };
+
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_writeto_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), pyb_i2c_writeto_args, args);
+
+    pyb_i2c_check_init(&pyb_i2c_obj);
 
     // get the buffer to send from
     mp_buffer_info_t bufinfo;
     uint8_t data[1];
-    pyb_buf_get_for_send(vals[0].u_obj, &bufinfo, data);
+    pyb_buf_get_for_send(args[1].u_obj, &bufinfo, data);
 
     // send the data
-    if (!pyb_i2c_write(vals[1].u_int, bufinfo.buf, bufinfo.len, true)) {
+    if (!pyb_i2c_write(args[0].u_int, bufinfo.buf, bufinfo.len, args[2].u_bool)) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
     }
 
-    return mp_const_none;
+    // return the number of bytes written
+    return mp_obj_new_int(bufinfo.len);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_send_obj, 1, pyb_i2c_send);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_writeto_obj, 3, pyb_i2c_writeto);
 
-/// \method recv(recv, addr=0x00)
-///
-/// Receive data on the bus:
-///
-///   - `recv` can be an integer, which is the number of bytes to receive,
-///     or a mutable buffer, which will be filled with received bytes
-///   - `addr` is the address to receive from (only required in master mode)
-///
-/// Return value: if `recv` is an integer then a new buffer of the bytes received,
-/// otherwise the same buffer that was passed in to `recv`.
-STATIC const mp_arg_t pyb_i2c_recv_args[] = {
-    { MP_QSTR_recv,    MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
-    { MP_QSTR_addr,                      MP_ARG_INT, {.u_int = 0} },
-};
-#define PYB_I2C_RECV_NUM_ARGS MP_ARRAY_SIZE(pyb_i2c_recv_args)
+STATIC mp_obj_t pyb_i2c_readfrom_mem(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t pyb_i2c_readfrom_mem_args[] = {
+        { MP_QSTR_addr,     MP_ARG_REQUIRED  | MP_ARG_INT, },
+        { MP_QSTR_memaddr,  MP_ARG_REQUIRED  | MP_ARG_INT, },
+        { MP_QSTR_nbytes,   MP_ARG_REQUIRED  | MP_ARG_OBJ, },
+        { MP_QSTR_addrsize, MP_ARG_KW_ONLY   | MP_ARG_INT, {.u_int = 8} },
+    };
 
-STATIC mp_obj_t pyb_i2c_recv(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
     // parse args
-    mp_arg_val_t vals[PYB_I2C_RECV_NUM_ARGS];
-    mp_arg_parse_all(n_args - 1, args + 1, kw_args, PYB_I2C_RECV_NUM_ARGS, pyb_i2c_recv_args, vals);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_readfrom_mem_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), pyb_i2c_readfrom_mem_args, args);
 
-    // get the buffer to receive into
     vstr_t vstr;
-    mp_obj_t o_ret = pyb_buf_get_for_recv(vals[0].u_obj, &vstr);
-
-    // receive the data
-    if (!pyb_i2c_read(vals[1].u_int, (byte *)vstr.buf, vstr.len)) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
-    }
-
-    // return the received data
-    if (o_ret != MP_OBJ_NULL) {
-        return o_ret;
-    }
-    else {
-        return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
-    }
+    pyb_i2c_readmem_into (args, &vstr);
+    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_recv_obj, 1, pyb_i2c_recv);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_readfrom_mem_obj, 4, pyb_i2c_readfrom_mem);
 
-/// \method mem_read(data, addr, memaddr, addr_size=8)
-///
-/// Read from the memory of an I2C device:
-///
-///   - `data` can be an integer or a buffer to read into
-///   - `addr` is the I2C device address
-///   - `memaddr` is the memory location within the I2C device
-///   - `addr_size` selects the width of memaddr: 8 or 16 bits
-///
-/// Returns the read data.
-/// This is only valid in master mode.
-STATIC const mp_arg_t pyb_i2c_mem_read_args[] = {
-    { MP_QSTR_data,      MP_ARG_REQUIRED  | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
-    { MP_QSTR_addr,      MP_ARG_REQUIRED  | MP_ARG_INT, {.u_int = 0} },
-    { MP_QSTR_memaddr,   MP_ARG_REQUIRED  | MP_ARG_INT, {.u_int = 0} },
-    { MP_QSTR_addr_size, MP_ARG_KW_ONLY   | MP_ARG_INT, {.u_int = 8} },
+STATIC const mp_arg_t pyb_i2c_readfrom_mem_into_args[] = {
+    { MP_QSTR_addr,     MP_ARG_REQUIRED  | MP_ARG_INT, },
+    { MP_QSTR_memaddr,  MP_ARG_REQUIRED  | MP_ARG_INT, },
+    { MP_QSTR_buf,      MP_ARG_REQUIRED  | MP_ARG_OBJ, },
+    { MP_QSTR_addrsize, MP_ARG_KW_ONLY   | MP_ARG_INT, {.u_int = 8} },
 };
-#define PYB_I2C_MEM_READ_NUM_ARGS MP_ARRAY_SIZE(pyb_i2c_mem_read_args)
 
-STATIC mp_obj_t pyb_i2c_mem_read(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
+STATIC mp_obj_t pyb_i2c_readfrom_mem_into(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     // parse args
-    mp_arg_val_t vals[PYB_I2C_MEM_READ_NUM_ARGS];
-    mp_arg_parse_all(n_args - 1, args + 1, kw_args, PYB_I2C_MEM_READ_NUM_ARGS, pyb_i2c_mem_read_args, vals);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_readfrom_mem_into_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), pyb_i2c_readfrom_mem_into_args, args);
 
     // get the buffer to read into
     vstr_t vstr;
-    mp_obj_t o_ret = pyb_buf_get_for_recv(vals[0].u_obj, &vstr);
-
-    // get the addresses
-    mp_uint_t i2c_addr = vals[1].u_int;
-    mp_uint_t mem_addr = vals[2].u_int;
-    // determine the width of mem_addr (1 or 2 bytes)
-    mp_uint_t mem_addr_size = vals[3].u_int >> 3;
-
-    // Write the register address to be read from.
-    if (pyb_i2c_write (i2c_addr, (byte *)&mem_addr, mem_addr_size, false)) {
-        // Read the specified length of data
-        if (pyb_i2c_read (i2c_addr, (byte *)vstr.buf, vstr.len)) {
-            // return the read data
-            if (o_ret != MP_OBJ_NULL) {
-                return o_ret;
-            } else {
-                return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
-            }
-        }
-    }
-
-    nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
-
-    return mp_const_none;
+    pyb_i2c_readmem_into (args, &vstr);
+    return mp_obj_new_int(vstr.len);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_mem_read_obj, 1, pyb_i2c_mem_read);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_readfrom_mem_into_obj, 4, pyb_i2c_readfrom_mem_into);
 
-/// \method mem_write(data, addr, memaddr, addr_size=8)
-///
-/// Write to the memory of an I2C device:
-///
-///   - `data` can be an integer or a buffer to write from
-///   - `addr` is the I2C device address
-///   - `memaddr` is the memory location within the I2C device
-///   - `addr_size` selects the width of memaddr: 8 or 16 bits
-///
-/// Returns `None`.
-/// This is only valid in master mode.
-STATIC mp_obj_t pyb_i2c_mem_write(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
-    // parse args (same as mem_read)
-    mp_arg_val_t vals[PYB_I2C_MEM_READ_NUM_ARGS];
-    mp_arg_parse_all(n_args - 1, args + 1, kw_args, PYB_I2C_MEM_READ_NUM_ARGS, pyb_i2c_mem_read_args, vals);
+STATIC mp_obj_t pyb_i2c_writeto_mem(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_i2c_readfrom_mem_into_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(pyb_i2c_readfrom_mem_into_args), pyb_i2c_readfrom_mem_into_args, args);
+
+    pyb_i2c_check_init(&pyb_i2c_obj);
 
     // get the buffer to write from
     mp_buffer_info_t bufinfo;
     uint8_t data[1];
-    pyb_buf_get_for_send(vals[0].u_obj, &bufinfo, data);
+    pyb_buf_get_for_send(args[2].u_obj, &bufinfo, data);
 
     // get the addresses
-    mp_uint_t i2c_addr = vals[1].u_int;
-    mp_uint_t mem_addr = vals[2].u_int;
+    mp_uint_t i2c_addr = args[0].u_int;
+    mp_uint_t mem_addr = args[1].u_int;
     // determine the width of mem_addr (1 or 2 bytes)
-    mp_uint_t mem_addr_size = vals[3].u_int >> 3;
+    mp_uint_t mem_addr_size = args[3].u_int >> 3;
 
-    // Write the register address to write to.
-    if (pyb_i2c_write (i2c_addr, (byte *)&mem_addr, mem_addr_size, false)) {
-        // Write the specified length of data
-        if (pyb_i2c_write (i2c_addr, bufinfo.buf, bufinfo.len, true)) {
-            return mp_const_none;
-        }
+    // write the register address to write to.
+    if (pyb_i2c_mem_write (i2c_addr, (byte *)&mem_addr, mem_addr_size, bufinfo.buf, bufinfo.len)) {
+        // return the number of bytes written
+        return mp_obj_new_int(bufinfo.len);
     }
 
     nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
-
-    return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_mem_write_obj, 1, pyb_i2c_mem_write);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_i2c_writeto_mem_obj, 4, pyb_i2c_writeto_mem);
 
 STATIC const mp_map_elem_t pyb_i2c_locals_dict_table[] = {
     // instance methods
-    { MP_OBJ_NEW_QSTR(MP_QSTR_init),            (mp_obj_t)&pyb_i2c_init_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),          (mp_obj_t)&pyb_i2c_deinit_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_is_ready),        (mp_obj_t)&pyb_i2c_is_ready_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_scan),            (mp_obj_t)&pyb_i2c_scan_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_send),            (mp_obj_t)&pyb_i2c_send_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_recv),            (mp_obj_t)&pyb_i2c_recv_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_mem_read),        (mp_obj_t)&pyb_i2c_mem_read_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_mem_write),       (mp_obj_t)&pyb_i2c_mem_write_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_init),                (mp_obj_t)&pyb_i2c_init_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),              (mp_obj_t)&pyb_i2c_deinit_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_scan),                (mp_obj_t)&pyb_i2c_scan_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readfrom),            (mp_obj_t)&pyb_i2c_readfrom_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readfrom_into),       (mp_obj_t)&pyb_i2c_readfrom_into_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_writeto),             (mp_obj_t)&pyb_i2c_writeto_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readfrom_mem),        (mp_obj_t)&pyb_i2c_readfrom_mem_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readfrom_mem_into),   (mp_obj_t)&pyb_i2c_readfrom_mem_into_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_writeto_mem),         (mp_obj_t)&pyb_i2c_writeto_mem_obj },
+
+    // class constants
+    { MP_OBJ_NEW_QSTR(MP_QSTR_MASTER),              MP_OBJ_NEW_SMALL_INT(PYBI2C_MASTER) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(pyb_i2c_locals_dict, pyb_i2c_locals_dict_table);

cc3200/mods/pybpin.c

@@ -55,52 +55,29 @@
 /// \moduleref pyb
 /// \class Pin - control I/O pins
 ///
-/// A pin is the basic object to control I/O pins.  It has methods to set
-/// the mode of the pin (input or output) and methods to get and set the
-/// digital logic level.  For analog control of a pin, see the ADC class.
-///
-/// Usage Model:
-///
-///     g = pyb.Pin('GPIO9', af=0, mode=pyb.Pin.IN, type=pyb.Pin.STD, strength=pyb.Pin.S2MA)
-///
-/// \Interrupts:
-//// You can also configure the Pin to generate interrupts
-///
-/// Example callback:
-///
-///     def pincb(pin):
-///         print(pin.get_config().name)
-///
-///     extint = pyb.Pin('GPIO10', 0, pyb.Pin.INT_RISING, pyb.GPIO.STD_PD, pyb.S2MA)
-///     extint.callback (intmode=pyb.Pin.INT_RISING, handler=pincb)
-///     # the callback can be triggered manually
-///     extint.callback()()
-///     # to disable the callback
-///     extint.callback().disable()
-///
-/// Now every time a falling edge is seen on the gpio pin, the callback will be
-/// called. Caution: mechanical pushbuttons have "bounce" and pushing or
-/// releasing a switch will often generate multiple edges.
-/// See: http://www.eng.utah.edu/~cs5780/debouncing.pdf for a detailed
-/// explanation, along with various techniques for debouncing.
-///
-/// All pin objects go through the pin mapper to come up with one of the
-/// gpio pins.
-///
-/// There is also a C API, so that drivers which require Pin interrupts
-/// can also use this code. See pybextint.h for the available functions.
 /******************************************************************************
 DECLARE PRIVATE FUNCTIONS
 ******************************************************************************/
+STATIC pin_obj_t *pin_find_named_pin(const mp_obj_dict_t *named_pins, mp_obj_t name);
+STATIC pin_obj_t *pin_find_pin_by_port_bit (const mp_obj_dict_t *named_pins, uint port, uint bit);
+STATIC int8_t pin_obj_find_af (const pin_obj_t* pin, uint8_t fn, uint8_t unit, uint8_t type);
+STATIC int8_t pin_find_af_index (const pin_obj_t* pin, uint8_t fn, uint8_t unit, uint8_t type);
+STATIC void pin_free_af_from_pins (uint8_t fn, uint8_t unit, uint8_t type);
+STATIC void pin_deassign (pin_obj_t* pin);
+STATIC void pin_obj_configure (const pin_obj_t *self);
+STATIC void pin_get_hibernate_pin_and_idx (const pin_obj_t *self, uint *wake_pin, uint *idx);
+STATIC void pin_extint_enable (mp_obj_t self_in);
+STATIC void pin_extint_disable (mp_obj_t self_in);
+STATIC void pin_extint_register(pin_obj_t *self, uint32_t intmode, uint32_t priority);
+STATIC void pin_validate_mode (uint mode);
+STATIC void pin_validate_pull (uint pull);
+STATIC void pin_validate_drive (uint strength);
+STATIC void pin_validate_af(const pin_obj_t* pin, int8_t idx, uint8_t *fn, uint8_t *unit, uint8_t *type);
 STATIC void GPIOA0IntHandler (void);
 STATIC void GPIOA1IntHandler (void);
 STATIC void GPIOA2IntHandler (void);
 STATIC void GPIOA3IntHandler (void);
 STATIC void EXTI_Handler(uint port);
-STATIC void pin_obj_configure (const pin_obj_t *self);
-STATIC void pin_get_hibernate_pin_and_idx (const pin_obj_t *self, uint *wake_pin, uint *idx);
-STATIC void pin_extint_enable (mp_obj_t self_in);
-STATIC void pin_extint_disable (mp_obj_t self_in);
 
 /******************************************************************************
 DEFINE CONSTANTS
@@ -108,6 +85,9 @@ DEFINE CONSTANTS
 #define PYBPIN_NUM_WAKE_PINS            (6)
 #define PYBPIN_WAKES_NOT                (-1)
 
+#define GPIO_DIR_MODE_ALT               0x00000002  // Pin is NOT controlled by the PGIO module
+#define GPIO_DIR_MODE_ALT_OD            0x00000003  // Pin is NOT controlled by the PGIO module and is in open drain mode
+
 /******************************************************************************
 DEFINE TYPES
 ******************************************************************************/
@@ -133,11 +113,16 @@ STATIC pybpin_wake_pin_t pybpin_wake_pin[PYBPIN_NUM_WAKE_PINS] =
  DEFINE PUBLIC FUNCTIONS
  ******************************************************************************/
 void pin_init0(void) {
-    // assign GPIO10 and GPIO11 to the GPIO peripheral (the default is I2C), so that the I2C bus can
-    // be assigned safely to any other pins (as recomended by the SDK release notes). Make them
-    // inputs with pull-downs enabled to ensure they are not floating during LDPS and hibernate.
-    pin_config ((pin_obj_t *)&pin_GPIO10, PIN_MODE_0, GPIO_DIR_MODE_IN, PIN_TYPE_STD_PD, PIN_STRENGTH_2MA);
-    pin_config ((pin_obj_t *)&pin_GPIO11, PIN_MODE_0, GPIO_DIR_MODE_IN, PIN_TYPE_STD_PD, PIN_STRENGTH_2MA);
+// this initalization also reconfigures the JTAG/SWD pins
+#ifndef DEBUG
+    // assign all pins to the GPIO module so that peripherals can be connected to any
+    // pins without conflicts after a soft reset
+    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
+    for (uint i = 0; i < named_map->used - 1; i++) {
+        pin_obj_t * pin = (pin_obj_t *)named_map->table[i].value;
+        pin_deassign (pin);
+    }
+#endif
 }
 
 // C API used to convert a user-supplied pin name into an ordinal pin number.
@@ -151,7 +136,7 @@ pin_obj_t *pin_find(mp_obj_t user_obj) {
     }
 
     // otherwise see if the pin name matches a cpu pin
-    pin_obj = pin_find_named_pin(&pin_cpu_pins_locals_dict, user_obj);
+    pin_obj = pin_find_named_pin(&pin_board_pins_locals_dict, user_obj);
     if (pin_obj) {
         return pin_obj;
     }
@@ -159,63 +144,129 @@ pin_obj_t *pin_find(mp_obj_t user_obj) {
     nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
 }
 
-void pin_verify_af (uint af) {
-    if (af > PIN_MODE_15) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+void pin_config (pin_obj_t *self, int af, uint mode, uint pull, int value, uint strength) {
+    self->mode = mode, self->pull = pull, self->strength = strength;
+    // if af is -1, then we want to keep it as it is
+    if (af != -1) {
+        self->af = af;
+    }
+
+    // if value is -1, then we want to keep it as it is
+    if (value != -1) {
+        self->value = value;
     }
-}
 
-void pin_config (pin_obj_t *self, uint af, uint mode, uint type, uint strength) {
-    // configure the pin in analog mode
-    self->af = af, self->mode = mode, self->type = type, self->strength = strength;
-    pin_obj_configure ((const pin_obj_t *)self);
     // mark the pin as used
-    self->isused = true;
+    self->used = true;
+    pin_obj_configure ((const pin_obj_t *)self);
+
     // register it with the sleep module
     pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pin_obj_configure);
 }
 
-void pin_extint_register(pin_obj_t *self, uint32_t intmode, uint32_t priority) {
-    void *handler;
-    uint32_t intnum;
-
-    // configure the interrupt type
-    MAP_GPIOIntTypeSet(self->port, self->bit, intmode);
-    switch (self->port) {
-    case GPIOA0_BASE:
-        handler = GPIOA0IntHandler;
-        intnum = INT_GPIOA0;
-        break;
-    case GPIOA1_BASE:
-        handler = GPIOA1IntHandler;
-        intnum = INT_GPIOA1;
-        break;
-    case GPIOA2_BASE:
-        handler = GPIOA2IntHandler;
-        intnum = INT_GPIOA2;
-        break;
-    case GPIOA3_BASE:
-    default:
-        handler = GPIOA3IntHandler;
-        intnum = INT_GPIOA3;
-        break;
+void pin_assign_pins_af (mp_obj_t *pins, uint32_t n_pins, uint32_t pull, uint32_t fn, uint32_t unit) {
+    for (int i = 0; i < n_pins; i++) {
+        pin_free_af_from_pins(fn, unit, i);
+        if (pins[i] != mp_const_none) {
+            pin_obj_t *pin = pin_find(pins[i]);
+            pin_config (pin, pin_find_af_index(pin, fn, unit, i), 0, pull, -1, PIN_STRENGTH_2MA);
+        }
     }
-    MAP_GPIOIntRegister(self->port, handler);
-    // set the interrupt to the lowest priority, to make sure that
-    // no other ISRs will be preemted by this one
-    MAP_IntPrioritySet(intnum, priority);
+}
+
+uint8_t pin_find_peripheral_unit (const mp_obj_t pin, uint8_t fn, uint8_t type) {
+    pin_obj_t *pin_o = pin_find(pin);
+    for (int i = 0; i < pin_o->num_afs; i++) {
+        if (pin_o->af_list[i].fn == fn && pin_o->af_list[i].type == type) {
+            return pin_o->af_list[i].unit;
+        }
+    }
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+
+uint8_t pin_find_peripheral_type (const mp_obj_t pin, uint8_t fn, uint8_t unit) {
+    pin_obj_t *pin_o = pin_find(pin);
+    for (int i = 0; i < pin_o->num_afs; i++) {
+        if (pin_o->af_list[i].fn == fn && pin_o->af_list[i].unit == unit) {
+            return pin_o->af_list[i].type;
+        }
+    }
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
 }
 
 /******************************************************************************
 DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/
+STATIC pin_obj_t *pin_find_named_pin(const mp_obj_dict_t *named_pins, mp_obj_t name) {
+    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
+    mp_map_elem_t *named_elem = mp_map_lookup(named_map, name, MP_MAP_LOOKUP);
+    if (named_elem != NULL && named_elem->value != NULL) {
+        return named_elem->value;
+    }
+    return NULL;
+}
+
+STATIC pin_obj_t *pin_find_pin_by_port_bit (const mp_obj_dict_t *named_pins, uint port, uint bit) {
+    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)named_pins);
+    for (uint i = 0; i < named_map->used; i++) {
+        if ((((pin_obj_t *)named_map->table[i].value)->port == port) &&
+                (((pin_obj_t *)named_map->table[i].value)->bit == bit)) {
+            return named_map->table[i].value;
+        }
+    }
+    return NULL;
+}
+
+STATIC int8_t pin_obj_find_af (const pin_obj_t* pin, uint8_t fn, uint8_t unit, uint8_t type) {
+    for (int i = 0; i < pin->num_afs; i++) {
+        if (pin->af_list[i].fn == fn && pin->af_list[i].unit == unit && pin->af_list[i].type == type) {
+            return pin->af_list[i].idx;
+        }
+    }
+    return -1;
+}
+
+STATIC int8_t pin_find_af_index (const pin_obj_t* pin, uint8_t fn, uint8_t unit, uint8_t type) {
+    int8_t af = pin_obj_find_af(pin, fn, unit, type);
+    if (af < 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+    return af;
+}
+
+STATIC void pin_free_af_from_pins (uint8_t fn, uint8_t unit, uint8_t type) {
+    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
+    for (uint i = 0; i < named_map->used - 1; i++) {
+        pin_obj_t * pin = (pin_obj_t *)named_map->table[i].value;
+        // af is different than GPIO
+        if (pin->af > PIN_MODE_0) {
+            // check if the pin supports the target af
+            int af = pin_obj_find_af(pin, fn, unit, type);
+            if (af > 0 && af == pin->af) {
+                // the pin is assigned to the target af, de-assign it
+                pin_deassign (pin);
+            }
+        }
+    }
+}
+
+STATIC void pin_deassign (pin_obj_t* pin) {
+    pin_config (pin, PIN_MODE_0, GPIO_DIR_MODE_IN, PIN_TYPE_STD, -1, PIN_STRENGTH_4MA);
+    pin->used = false;
+}
+
 STATIC void pin_obj_configure (const pin_obj_t *self) {
-    // Skip all this if the pin is to be used in analog mode
-    if (self->type != PYBPIN_ANALOG_TYPE) {
-        // verify the alternate function
-        pin_verify_af (self->af);
-        // PIN_MODE_0 means it stays as a pin, else, another peripheral will take control of it
-        if (self->af == PIN_MODE_0) {
+    uint32_t type;
+    if (self->mode == PIN_TYPE_ANALOG) {
+        type = PIN_TYPE_ANALOG;
+    } else {
+        type = self->pull;
+        uint32_t direction = self->mode;
+        if (direction == PIN_TYPE_OD || direction == GPIO_DIR_MODE_ALT_OD) {
+            direction = GPIO_DIR_MODE_OUT;
+            type |= PIN_TYPE_OD;
+        }
+        if (self->mode != GPIO_DIR_MODE_ALT && self->mode != GPIO_DIR_MODE_ALT_OD) {
             // enable the peripheral clock for the GPIO port of this pin
             switch (self->port) {
             case PORT_A0:
@@ -233,39 +284,47 @@ STATIC void pin_obj_configure (const pin_obj_t *self) {
             default:
                 break;
             }
+
+            // set the pin value
+            if (self->value) {
+                MAP_GPIOPinWrite(self->port, self->bit, self->bit);
+            } else {
+                MAP_GPIOPinWrite(self->port, self->bit, 0);
+            }
+
             // configure the direction
-            MAP_GPIODirModeSet(self->port, self->bit, self->mode);
+            MAP_GPIODirModeSet(self->port, self->bit, direction);
         }
-        // now set the alternate function, strenght and type
+        // now set the alternate function
         MAP_PinModeSet (self->pin_num, self->af);
     }
-    MAP_PinConfigSet(self->pin_num, self->strength, self->type);
+    MAP_PinConfigSet(self->pin_num, self->strength, type);
 }
 
 STATIC void pin_get_hibernate_pin_and_idx (const pin_obj_t *self, uint *hib_pin, uint *idx) {
     // pin_num is actually : (package_pin - 1)
     switch (self->pin_num) {
-    case 56:    // GPIO2
+    case 56:    // GP2
         *hib_pin = PRCM_HIB_GPIO2;
         *idx = 0;
         break;
-    case 58:    // GPIO4
+    case 58:    // GP4
         *hib_pin = PRCM_HIB_GPIO4;
         *idx = 1;
         break;
-    case 3:     // GPIO13
+    case 3:     // GP13
         *hib_pin = PRCM_HIB_GPIO13;
         *idx = 2;
         break;
-    case 7:     // GPIO17
+    case 7:     // GP17
         *hib_pin = PRCM_HIB_GPIO17;
         *idx = 3;
         break;
-    case 1:     // GPIO11
+    case 1:     // GP11
         *hib_pin = PRCM_HIB_GPIO11;
         *idx = 4;
         break;
-    case 16:    // GPIO24
+    case 16:    // GP24
         *hib_pin = PRCM_HIB_GPIO24;
         *idx = 5;
         break;
@@ -326,36 +385,110 @@ STATIC void pin_extint_disable (mp_obj_t self_in) {
     MAP_GPIOIntDisable(self->port, self->bit);
 }
 
+STATIC void pin_extint_register(pin_obj_t *self, uint32_t intmode, uint32_t priority) {
+    void *handler;
+    uint32_t intnum;
+
+    // configure the interrupt type
+    MAP_GPIOIntTypeSet(self->port, self->bit, intmode);
+    switch (self->port) {
+    case GPIOA0_BASE:
+        handler = GPIOA0IntHandler;
+        intnum = INT_GPIOA0;
+        break;
+    case GPIOA1_BASE:
+        handler = GPIOA1IntHandler;
+        intnum = INT_GPIOA1;
+        break;
+    case GPIOA2_BASE:
+        handler = GPIOA2IntHandler;
+        intnum = INT_GPIOA2;
+        break;
+    case GPIOA3_BASE:
+    default:
+        handler = GPIOA3IntHandler;
+        intnum = INT_GPIOA3;
+        break;
+    }
+    MAP_GPIOIntRegister(self->port, handler);
+    // set the interrupt to the lowest priority, to make sure that
+    // no other ISRs will be preemted by this one
+    MAP_IntPrioritySet(intnum, priority);
+}
+
+STATIC void pin_validate_mode (uint mode) {
+    if (mode != GPIO_DIR_MODE_IN && mode != GPIO_DIR_MODE_OUT && mode != PIN_TYPE_OD &&
+        mode != GPIO_DIR_MODE_ALT && mode != GPIO_DIR_MODE_ALT_OD) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+}
+STATIC void pin_validate_pull (uint pull) {
+    if (pull != PIN_TYPE_STD && pull != PIN_TYPE_STD_PU && pull != PIN_TYPE_STD_PD) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+}
+
+STATIC void pin_validate_drive(uint strength) {
+    if (strength != PIN_STRENGTH_2MA && strength != PIN_STRENGTH_4MA && strength != PIN_STRENGTH_6MA) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+}
+
+STATIC void pin_validate_af(const pin_obj_t* pin, int8_t idx, uint8_t *fn, uint8_t *unit, uint8_t *type) {
+    for (int i = 0; i < pin->num_afs; i++) {
+        if (pin->af_list[i].idx == idx) {
+            *fn = pin->af_list[i].fn;
+            *unit = pin->af_list[i].unit;
+            *type = pin->af_list[i].type;
+            return;
+        }
+    }
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+
+STATIC void GPIOA0IntHandler (void) {
+    EXTI_Handler(GPIOA0_BASE);
+}
+
+STATIC void GPIOA1IntHandler (void) {
+    EXTI_Handler(GPIOA1_BASE);
+}
+
+STATIC void GPIOA2IntHandler (void) {
+    EXTI_Handler(GPIOA2_BASE);
+}
+
+STATIC void GPIOA3IntHandler (void) {
+    EXTI_Handler(GPIOA3_BASE);
+}
+
+// common interrupt handler
+STATIC void EXTI_Handler(uint port) {
+    uint32_t bits = MAP_GPIOIntStatus(port, true);
+    MAP_GPIOIntClear(port, bits);
+
+    // might be that we have more than one Pin interrupt pending
+    // therefore we must loop through all of the 8 possible bits
+    for (int i = 0; i < 8; i++) {
+        uint32_t bit = (1 << i);
+        if (bit & bits) {
+            pin_obj_t *self = (pin_obj_t *)pin_find_pin_by_port_bit(&pin_board_pins_locals_dict, port, bit);
+            mp_obj_t _callback = mpcallback_find(self);
+            mpcallback_handler(_callback);
+        }
+    }
+}
+
+
 /******************************************************************************/
 // Micro Python bindings
 
-/// \method init(mode, pull=Pin.PULL_NONE, af=-1)
-/// Initialise the pin:
-///
-///   - `af` can be in range 0-15, please check the CC3200 datasheet
-///     for the details on the AFs availables on each pin (af=0, keeps it as a gpio pin).
-///   - `mode` can be one of:
-///     - `Pin.IN`     - configure the pin for input;
-///     - `Pin.OUT`    - configure the pin for output;
-///   - `type` can be one of:
-///     - `Pin.STD`    - standard without pull-up or pull-down;
-///     - `Pin.STD_PU` - standard with pull-up resistor;
-///     - `Pin.STD_PD` - standard with pull-down resistor.
-///     - `Pin.OD`     - standard without pull up or pull down;
-///     - `Pin.OD_PU`  - open drain with pull-up resistor;
-///     - `Pin.OD_PD`  - open drain with pull-down resistor.
-///     - `Pin.ANALOG` - configured in analog (adc) mode
-///   - `strength` can be one of:
-///     - `Pin.S2MA`    - 2ma drive strength;
-///     - `Pin.S4MA`    - 4ma drive strength;
-///     - `Pin.S6MA`    - 6ma drive strength;
-///
-/// Returns: `None`.
 STATIC const mp_arg_t pin_init_args[] = {
-    { MP_QSTR_af,       MP_ARG_REQUIRED | MP_ARG_INT  },
-    { MP_QSTR_mode,                       MP_ARG_INT, {.u_int = GPIO_DIR_MODE_OUT} },
-    { MP_QSTR_type,                       MP_ARG_INT, {.u_int = PIN_TYPE_STD} },
-    { MP_QSTR_strength,                   MP_ARG_INT, {.u_int = PIN_STRENGTH_4MA} },
+    { MP_QSTR_mode,     MP_ARG_REQUIRED |  MP_ARG_INT  },
+    { MP_QSTR_pull,                        MP_ARG_OBJ, {.u_obj = mp_const_none} },
+    { MP_QSTR_value,    MP_ARG_KW_ONLY  |  MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+    { MP_QSTR_drive,    MP_ARG_KW_ONLY  |  MP_ARG_INT, {.u_int = PIN_STRENGTH_4MA} },
+    { MP_QSTR_alt,      MP_ARG_KW_ONLY  |  MP_ARG_INT, {.u_int = -1} },
 };
 #define pin_INIT_NUM_ARGS MP_ARRAY_SIZE(pin_init_args)
 
@@ -364,93 +497,112 @@ STATIC mp_obj_t pin_obj_init_helper(pin_obj_t *self, mp_uint_t n_args, const mp_
     mp_arg_val_t args[pin_INIT_NUM_ARGS];
     mp_arg_parse_all(n_args, pos_args, kw_args, pin_INIT_NUM_ARGS, pin_init_args, args);
 
-    // get the af
-    uint af = args[0].u_int;
-    if (af < PIN_MODE_0 || af > PIN_MODE_15) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
-    }
     // get the io mode
-    uint mode = args[1].u_int;
-    // checking the mode only makes sense if af == GPIO
-    if (af == PIN_MODE_0) {
-        if (mode != GPIO_DIR_MODE_IN && mode != GPIO_DIR_MODE_OUT) {
-            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    uint mode = args[0].u_int;
+    pin_validate_mode(mode);
+
+    // get the pull type
+    uint pull;
+    if (args[1].u_obj == mp_const_none) {
+        pull = PIN_TYPE_STD;
+    } else {
+        pull = mp_obj_get_int(args[1].u_obj);
+        pin_validate_pull (pull);
+    }
+
+    // get the value
+    int value = -1;
+    if (args[2].u_obj != MP_OBJ_NULL) {
+        if (mp_obj_is_true(args[2].u_obj)) {
+            value = 1;
+        } else {
+            value = 0;
         }
     }
-    // get the type
-    uint type = args[2].u_int;
-    if (type != PIN_TYPE_STD && type != PIN_TYPE_STD_PU && type != PIN_TYPE_STD_PD &&
-            type != PIN_TYPE_OD && type != PIN_TYPE_OD_PU && type != PIN_TYPE_OD_PD) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
-    }
+
     // get the strenght
     uint strength = args[3].u_int;
-    if (strength != PIN_STRENGTH_2MA && strength != PIN_STRENGTH_4MA && strength != PIN_STRENGTH_6MA) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    pin_validate_drive(strength);
+
+    // get the alternate function
+    int af = args[4].u_int;
+    if (mode != GPIO_DIR_MODE_ALT && mode != GPIO_DIR_MODE_ALT_OD) {
+        if (af == -1) {
+            af = 0;
+        } else {
+            goto invalid_args;
+        }
+    } else if (af < -1 || af > 15) {
+        goto invalid_args;
     }
 
-    // configure the pin as requested
-    pin_config (self, af, mode, type, strength);
+    // check for a valid af and then free it from any other pins
+    if (af > PIN_MODE_0) {
+        uint8_t fn, unit, type;
+        pin_validate_af (self, af, &fn, &unit, &type);
+        pin_free_af_from_pins(fn, unit, type);
+    }
+    pin_config (self, af, mode, pull, value, strength);
 
     return mp_const_none;
+
+invalid_args:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
 }
 
-/// \method print()
-/// Return a string describing the pin object.
 STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
     pin_obj_t *self = self_in;
-    uint32_t af = self->af;
-    uint32_t type = self->type;
-    uint32_t strength = self->strength;
+    uint32_t pull = self->pull;
+    uint32_t drive = self->strength;
 
     // pin name
-    mp_printf(print, "<Pin.cpu.%q, af=%u", self->name, af);
+    mp_printf(print, "Pin('%q'", self->name);
 
     // pin mode
-    if (af == PIN_MODE_0) {
-        // IO mode
-        qstr mode_qst;
-        uint32_t mode = self->mode;
-        if (mode == GPIO_DIR_MODE_IN) {
-            mode_qst = MP_QSTR_IN;
+    qstr mode_qst;
+    uint32_t mode = self->mode;
+    if (mode == GPIO_DIR_MODE_IN) {
+        mode_qst = MP_QSTR_IN;
+    } else if (mode == GPIO_DIR_MODE_OUT) {
+        mode_qst = MP_QSTR_OUT;
+    } else if (mode == GPIO_DIR_MODE_ALT) {
+        mode_qst = MP_QSTR_ALT;
+    } else if (mode == GPIO_DIR_MODE_ALT_OD) {
+        mode_qst = MP_QSTR_ALT_OPEN_DRAIN;
+    } else {
+        mode_qst = MP_QSTR_OPEN_DRAIN;
+    }
+    mp_printf(print, ", mode=Pin.%q", mode_qst);
+
+    // pin pull
+    qstr pull_qst;
+    if (pull == PIN_TYPE_STD) {
+        mp_printf(print, ", pull=%q", MP_QSTR_None);
+    } else {
+        if (pull == PIN_TYPE_STD_PU) {
+            pull_qst = MP_QSTR_PULL_UP;
         } else {
-            mode_qst = MP_QSTR_OUT;
+            pull_qst = MP_QSTR_PULL_DOWN;
         }
-        mp_printf(print, ", mode=Pin.%q", mode_qst);
+        mp_printf(print, ", pull=Pin.%q", pull_qst);
     }
 
-    // pin type
-    qstr type_qst;
-    if (type == PIN_TYPE_STD) {
-        type_qst = MP_QSTR_STD;
-    } else if (type == PIN_TYPE_STD_PU) {
-        type_qst = MP_QSTR_STD_PU;
-    } else if (type == PIN_TYPE_STD_PD) {
-        type_qst = MP_QSTR_STD_PD;
-    } else if (type == PIN_TYPE_OD) {
-        type_qst = MP_QSTR_OD;
-    } else if (type == PIN_TYPE_OD_PU) {
-        type_qst = MP_QSTR_OD_PU;
+    // pin drive
+    qstr drv_qst;
+    if (drive == PIN_STRENGTH_2MA) {
+        drv_qst = MP_QSTR_LOW_POWER;
+    } else if (drive == PIN_STRENGTH_4MA) {
+        drv_qst = MP_QSTR_MED_POWER;
     } else {
-        type_qst = MP_QSTR_OD_PD;
+        drv_qst = MP_QSTR_HIGH_POWER;
     }
-    mp_printf(print, ", type=Pin.%q", type_qst);
+    mp_printf(print, ", drive=Pin.%q", drv_qst);
 
-    // pin strength
-    qstr str_qst;
-    if (strength == PIN_STRENGTH_2MA) {
-        str_qst = MP_QSTR_S2MA;
-    } else if (strength == PIN_STRENGTH_4MA) {
-        str_qst = MP_QSTR_S4MA;
-    } else {
-        str_qst = MP_QSTR_S6MA;
-    }
-    mp_printf(print, ", strength=Pin.%q>", str_qst);
+    // pin af
+    int alt = (self->af == 0) ? -1 : self->af;
+    mp_printf(print, ", alt=%d)", alt);
 }
 
-/// \classmethod \constructor(id, ...)
-/// Create a new Pin object associated with the id.  If additional arguments are given,
-/// they are used to initialise the pin.  See `init`.
 STATIC mp_obj_t pin_make_new(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
     mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
 
@@ -472,13 +624,6 @@ STATIC mp_obj_t pin_obj_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *k
 }
 MP_DEFINE_CONST_FUN_OBJ_KW(pin_init_obj, 1, pin_obj_init);
 
-/// \method value([value])
-/// Get or set the digital logic level of the pin:
-///
-///   - With no arguments, return 0 or 1 depending on the logic level of the pin.
-///   - With `value` given, set the logic level of the pin.  `value` can be
-///   anything that converts to a boolean.  If it converts to `True`, the pin
-///   is set high, otherwise it is set low.
 STATIC mp_obj_t pin_value(mp_uint_t n_args, const mp_obj_t *args) {
     pin_obj_t *self = args[0];
     if (n_args == 1) {
@@ -487,8 +632,10 @@ STATIC mp_obj_t pin_value(mp_uint_t n_args, const mp_obj_t *args) {
     } else {
         // set the pin value
         if (mp_obj_is_true(args[1])) {
+            self->value = 1;
             MAP_GPIOPinWrite(self->port, self->bit, self->bit);
         } else {
+            self->value = 0;
             MAP_GPIOPinWrite(self->port, self->bit, 0);
         }
         return mp_const_none;
@@ -496,26 +643,6 @@ STATIC mp_obj_t pin_value(mp_uint_t n_args, const mp_obj_t *args) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_value_obj, 1, 2, pin_value);
 
-/// \method low()
-/// Set the pin to a low logic level.
-STATIC mp_obj_t pin_low(mp_obj_t self_in) {
-    pin_obj_t *self = self_in;
-    MAP_GPIOPinWrite(self->port, self->bit, 0);
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_low_obj, pin_low);
-
-/// \method high()
-/// Set the pin to a high logic level.
-STATIC mp_obj_t pin_high(mp_obj_t self_in) {
-    pin_obj_t *self = self_in;
-    MAP_GPIOPinWrite(self->port, self->bit, self->bit);
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_high_obj, pin_high);
-
-/// \method toggle()
-/// Toggles the value of the pin
 STATIC mp_obj_t pin_toggle(mp_obj_t self_in) {
     pin_obj_t *self = self_in;
     MAP_GPIOPinWrite(self->port, self->bit, ~MAP_GPIOPinRead(self->port, self->bit));
@@ -523,29 +650,82 @@ STATIC mp_obj_t pin_toggle(mp_obj_t self_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_toggle_obj, pin_toggle);
 
-/// \method get_config()
-/// Returns a named tupple with the current configuration of the gpio pin
-STATIC mp_obj_t pin_get_config(mp_obj_t self_in) {
-    STATIC const qstr pin_config_fields[] = {
-        MP_QSTR_name, MP_QSTR_af, MP_QSTR_mode,
-        MP_QSTR_type, MP_QSTR_strength
-    };
-
+STATIC mp_obj_t pin_id(mp_obj_t self_in) {
     pin_obj_t *self = self_in;
-    mp_obj_t pin_config[5];
-    pin_config[0] = MP_OBJ_NEW_QSTR(self->name);
-    pin_config[1] = mp_obj_new_int(self->af);
-    pin_config[2] = mp_obj_new_int(self->mode);
-    pin_config[3] = mp_obj_new_int(self->type);
-    pin_config[4] = mp_obj_new_int(self->strength);
-
-    return mp_obj_new_attrtuple(pin_config_fields, 5, pin_config);
+    return MP_OBJ_NEW_QSTR(self->name);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_get_config_obj, pin_get_config);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_id_obj, pin_id);
+
+STATIC mp_obj_t pin_mode(mp_uint_t n_args, const mp_obj_t *args) {
+    pin_obj_t *self = args[0];
+    if (n_args == 1) {
+        return mp_obj_new_int(self->mode);
+    } else {
+        uint32_t mode = mp_obj_get_int(args[1]);
+        pin_validate_mode (mode);
+        self->mode = mode;
+        pin_obj_configure(self);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_mode_obj, 1, 2, pin_mode);
+
+STATIC mp_obj_t pin_pull(mp_uint_t n_args, const mp_obj_t *args) {
+    pin_obj_t *self = args[0];
+    if (n_args == 1) {
+        if (self->pull == PIN_TYPE_STD) {
+            return mp_const_none;
+        }
+        return mp_obj_new_int(self->pull);
+    } else {
+        uint32_t pull;
+        if (args[1] == mp_const_none) {
+            pull = PIN_TYPE_STD;
+        } else {
+            pull = mp_obj_get_int(args[1]);
+            pin_validate_pull (pull);
+        }
+        self->pull = pull;
+        pin_obj_configure(self);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_pull_obj, 1, 2, pin_pull);
+
+STATIC mp_obj_t pin_drive(mp_uint_t n_args, const mp_obj_t *args) {
+    pin_obj_t *self = args[0];
+    if (n_args == 1) {
+        return mp_obj_new_int(self->strength);
+    } else {
+        uint32_t strength = mp_obj_get_int(args[1]);
+        pin_validate_drive (strength);
+        self->strength = strength;
+        pin_obj_configure(self);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_drive_obj, 1, 2, pin_drive);
+
+STATIC mp_obj_t pin_call(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    mp_arg_check_num(n_args, n_kw, 0, 1, false);
+    mp_obj_t _args[2] = {self_in, *args};
+    return pin_value (n_args + 1, _args);
+}
+
+STATIC mp_obj_t pin_alt_list(mp_obj_t self_in) {
+    pin_obj_t *self = self_in;
+    mp_obj_t af[2];
+    mp_obj_t afs = mp_obj_new_list(0, NULL);
+
+    for (int i = 0; i < self->num_afs; i++) {
+        af[0] = MP_OBJ_NEW_QSTR(self->af_list[i].name);
+        af[1] = mp_obj_new_int(self->af_list[i].idx);
+        mp_obj_list_append(afs, mp_obj_new_tuple(MP_ARRAY_SIZE(af), af));
+    }
+    return afs;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pin_alt_list_obj, pin_alt_list);
 
-/// \method callback(method, intmode, priority, pwrmode)
-/// Creates a callback object associated to a pin
-/// min num of arguments is 1 (intmode)
 STATIC mp_obj_t pin_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     mp_arg_val_t args[mpcallback_INIT_NUM_ARGS];
     mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, mpcallback_INIT_NUM_ARGS, mpcallback_init_args, args);
@@ -553,14 +733,17 @@ STATIC mp_obj_t pin_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map
     pin_obj_t *self = pos_args[0];
     // check if any parameters were passed
     mp_obj_t _callback = mpcallback_find(self);
-    if (kw_args->used > 0 || !_callback) {
+    if (kw_args->used > 0) {
         // convert the priority to the correct value
         uint priority = mpcallback_translate_priority (args[2].u_int);
         // verify the interrupt mode
         uint intmode = args[0].u_int;
-        if (intmode != GPIO_FALLING_EDGE && intmode != GPIO_RISING_EDGE && intmode != GPIO_BOTH_EDGES &&
-            intmode != GPIO_LOW_LEVEL && intmode != GPIO_HIGH_LEVEL) {
-            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+        if (intmode == (GPIO_FALLING_EDGE | GPIO_RISING_EDGE)) {
+            intmode = GPIO_BOTH_EDGES;
+        }
+        else if (intmode != GPIO_FALLING_EDGE && intmode != GPIO_RISING_EDGE &&
+                 intmode != GPIO_LOW_LEVEL && intmode != GPIO_HIGH_LEVEL) {
+            goto invalid_args;
         }
 
         uint pwrmode = args[4].u_int;
@@ -657,13 +840,15 @@ STATIC mp_obj_t pin_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map
         }
 
         // all checks have passed, now we can create the callback
-        _callback = mpcallback_new (self, args[1].u_obj, &pin_cb_methods);
+        _callback = mpcallback_new (self, args[1].u_obj, &pin_cb_methods, true);
         if (pwrmode & PYB_PWR_MODE_LPDS) {
             pybsleep_set_gpio_lpds_callback (_callback);
         }
 
         // enable the interrupt just before leaving
         pin_extint_enable(self);
+    } else if (!_callback) {
+        _callback = mpcallback_new (self, mp_const_none, &pin_cb_methods, false);
     }
     return _callback;
 
@@ -676,46 +861,32 @@ STATIC const mp_map_elem_t pin_locals_dict_table[] = {
     // instance methods
     { MP_OBJ_NEW_QSTR(MP_QSTR_init),                    (mp_obj_t)&pin_init_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_value),                   (mp_obj_t)&pin_value_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_low),                     (mp_obj_t)&pin_low_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_high),                    (mp_obj_t)&pin_high_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_toggle),                  (mp_obj_t)&pin_toggle_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_get_config),              (mp_obj_t)&pin_get_config_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_id),                      (mp_obj_t)&pin_id_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_mode),                    (mp_obj_t)&pin_mode_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_pull),                    (mp_obj_t)&pin_pull_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_drive),                   (mp_obj_t)&pin_drive_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_alt_list),                (mp_obj_t)&pin_alt_list_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_callback),                (mp_obj_t)&pin_callback_obj },
 
+    // class attributes
+    { MP_OBJ_NEW_QSTR(MP_QSTR_board),                   (mp_obj_t)&pin_board_pins_obj_type },
+
     // class constants
-    /// \constant IN                                    - set the pin to input mode
-    /// \constant OUT                                   - set the pin to output mode
-    /// \constant STD                                   - set the pin to standard mode without pull-up or pull-down
-    /// \constant STD_PU                                - set the pin to standard mode with pull-up
-    /// \constant STD_PD                                - set the pin to standard mode with pull-down
-    /// \constant OD                                    - set the pin to open drain mode without pull-up or pull-down
-    /// \constant OD_PU                                 - set the pin to open drain mode with pull-up
-    /// \constant OD_PD                                 - set the pin to open drain mode with pull-down
-    /// \constant IRQ_RISING                            - interrupt on a rising edge
-    /// \constant IRQ_FALLING                           - interrupt on a falling edge
-    /// \constant IRQ_RISING_FALLING                    - interrupt on a rising or falling edge
-    /// \constant IRQ_LOW_LEVEL                         - interrupt on a low level
-    /// \constant IRQ_HIGH_LEVEL                        - interrupt on a high level
-    /// \constant 2MA                                   - set the drive strength to 2ma
-    /// \constant 4MA                                   - set the drive strength to 4ma
-    /// \constant 6MA                                   - set the drive strength to 6ma
     { MP_OBJ_NEW_QSTR(MP_QSTR_IN),                      MP_OBJ_NEW_SMALL_INT(GPIO_DIR_MODE_IN) },
     { MP_OBJ_NEW_QSTR(MP_QSTR_OUT),                     MP_OBJ_NEW_SMALL_INT(GPIO_DIR_MODE_OUT) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_STD),                     MP_OBJ_NEW_SMALL_INT(PIN_TYPE_STD) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_STD_PU),                  MP_OBJ_NEW_SMALL_INT(PIN_TYPE_STD_PU) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_STD_PD),                  MP_OBJ_NEW_SMALL_INT(PIN_TYPE_STD_PD) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_OD),                      MP_OBJ_NEW_SMALL_INT(PIN_TYPE_OD) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_OD_PU),                   MP_OBJ_NEW_SMALL_INT(PIN_TYPE_OD_PU) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_OD_PD),                   MP_OBJ_NEW_SMALL_INT(PIN_TYPE_OD_PD) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_INT_FALLING),             MP_OBJ_NEW_SMALL_INT(GPIO_FALLING_EDGE) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_INT_RISING),              MP_OBJ_NEW_SMALL_INT(GPIO_RISING_EDGE) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_INT_RISING_FALLING),      MP_OBJ_NEW_SMALL_INT(GPIO_BOTH_EDGES) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_INT_LOW_LEVEL),           MP_OBJ_NEW_SMALL_INT(GPIO_LOW_LEVEL) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_INT_HIGH_LEVEL),          MP_OBJ_NEW_SMALL_INT(GPIO_HIGH_LEVEL) },
-
-    { MP_OBJ_NEW_QSTR(MP_QSTR_S2MA),                    MP_OBJ_NEW_SMALL_INT(PIN_STRENGTH_2MA) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_S4MA),                    MP_OBJ_NEW_SMALL_INT(PIN_STRENGTH_4MA) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_S6MA),                    MP_OBJ_NEW_SMALL_INT(PIN_STRENGTH_6MA) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_OPEN_DRAIN),              MP_OBJ_NEW_SMALL_INT(PIN_TYPE_OD) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ALT),                     MP_OBJ_NEW_SMALL_INT(GPIO_DIR_MODE_ALT) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ALT_OPEN_DRAIN),          MP_OBJ_NEW_SMALL_INT(GPIO_DIR_MODE_ALT_OD) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_PULL_UP),                 MP_OBJ_NEW_SMALL_INT(PIN_TYPE_STD_PU) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_PULL_DOWN),               MP_OBJ_NEW_SMALL_INT(PIN_TYPE_STD_PD) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_LOW_POWER),               MP_OBJ_NEW_SMALL_INT(PIN_STRENGTH_2MA) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_MED_POWER),               MP_OBJ_NEW_SMALL_INT(PIN_STRENGTH_4MA) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_HIGH_POWER),              MP_OBJ_NEW_SMALL_INT(PIN_STRENGTH_6MA) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_IRQ_FALLING),             MP_OBJ_NEW_SMALL_INT(GPIO_FALLING_EDGE) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_IRQ_RISING),              MP_OBJ_NEW_SMALL_INT(GPIO_RISING_EDGE) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_IRQ_LOW_LEVEL),           MP_OBJ_NEW_SMALL_INT(GPIO_LOW_LEVEL) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_IRQ_HIGH_LEVEL),          MP_OBJ_NEW_SMALL_INT(GPIO_HIGH_LEVEL) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(pin_locals_dict, pin_locals_dict_table);
@@ -725,6 +896,7 @@ const mp_obj_type_t pin_type = {
     .name = MP_QSTR_Pin,
     .print = pin_print,
     .make_new = pin_make_new,
+    .call = pin_call,
     .locals_dict = (mp_obj_t)&pin_locals_dict,
 };
 
@@ -734,29 +906,15 @@ STATIC const mp_cb_methods_t pin_cb_methods = {
     .disable = pin_extint_disable,
 };
 
-STATIC void GPIOA0IntHandler (void) {
-    EXTI_Handler(GPIOA0_BASE);
+STATIC void pin_named_pins_obj_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
+    pin_named_pins_obj_t *self = self_in;
+    mp_printf(print, "<Pin.%q>", self->name);
 }
 
-STATIC void GPIOA1IntHandler (void) {
-    EXTI_Handler(GPIOA1_BASE);
-}
-
-STATIC void GPIOA2IntHandler (void) {
-    EXTI_Handler(GPIOA2_BASE);
-}
-
-STATIC void GPIOA3IntHandler (void) {
-    EXTI_Handler(GPIOA3_BASE);
-}
-
-// common interrupt handler
-STATIC void EXTI_Handler(uint port) {
-    uint32_t bit = MAP_GPIOIntStatus(port, true);
-    MAP_GPIOIntClear(port, bit);
-
-    pin_obj_t *self = (pin_obj_t *)pin_find_pin_by_port_bit(&pin_cpu_pins_locals_dict, port, bit);
-    mp_obj_t _callback = mpcallback_find(self);
-    mpcallback_handler(_callback);
-}
+const mp_obj_type_t pin_board_pins_obj_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_board,
+    .print = pin_named_pins_obj_print,
+    .locals_dict = (mp_obj_t)&pin_board_pins_locals_dict,
+};
 

cc3200/mods/pybpin.h

@@ -28,26 +28,91 @@
 #ifndef PYBPIN_H_
 #define PYBPIN_H_
 
-#define PYBPIN_ANALOG_TYPE          0xFF
+enum {
+    PORT_A0 = GPIOA0_BASE,
+    PORT_A1 = GPIOA1_BASE,
+    PORT_A2 = GPIOA2_BASE,
+    PORT_A3 = GPIOA3_BASE,
+};
 
 enum {
-  PORT_A0 = GPIOA0_BASE,
-  PORT_A1 = GPIOA1_BASE,
-  PORT_A2 = GPIOA2_BASE,
-  PORT_A3 = GPIOA3_BASE
+    PIN_FN_UART = 0,
+    PIN_FN_SPI,
+    PIN_FN_I2S,
+    PIN_FN_I2C,
+    PIN_FN_TIM,
+    PIN_FN_SD,
+    PIN_FN_ADC,
 };
 
+enum {
+    PIN_TYPE_UART_TX = 0,
+    PIN_TYPE_UART_RX,
+    PIN_TYPE_UART_RTS,
+    PIN_TYPE_UART_CTS,
+};
+
+enum {
+    PIN_TYPE_SPI_CLK = 0,
+    PIN_TYPE_SPI_MOSI,
+    PIN_TYPE_SPI_MISO,
+    PIN_TYPE_SPI_CS0,
+};
+
+enum {
+    PIN_TYPE_I2S_CLK = 0,
+    PIN_TYPE_I2S_FS,
+    PIN_TYPE_I2S_DAT0,
+    PIN_TYPE_I2S_DAT1,
+};
+
+enum {
+    PIN_TYPE_I2C_SDA = 0,
+    PIN_TYPE_I2C_SCL,
+};
+
+enum {
+    PIN_TYPE_TIM_PWM0 = 0,
+    PIN_TYPE_TIM_PWM1,
+    PIN_TYPE_TIM_CC0,
+    PIN_TYPE_TIM_CC1,
+};
+
+enum {
+    PIN_TYPE_SD_CLK = 0,
+    PIN_TYPE_SD_CMD,
+    PIN_TYPE_SD_DAT0,
+};
+
+enum {
+    PIN_TYPE_ADC_CH0 = 0,
+    PIN_TYPE_ADC_CH1,
+    PIN_TYPE_ADC_CH2,
+    PIN_TYPE_ADC_CH3,
+};
+
+typedef struct {
+  qstr name;
+  int8_t  idx;
+  uint8_t fn;
+  uint8_t unit;
+  uint8_t type;
+} pin_af_t;
+
 typedef struct {
     const mp_obj_base_t base;
     const qstr          name;
     const uint32_t      port;
-    uint16_t            type;
+    const pin_af_t      *af_list;
+    uint16_t            pull;
     const uint8_t       bit;
     const uint8_t       pin_num;
-    uint8_t             af;
+    int8_t              af;
     uint8_t             strength;
-    uint8_t             mode;
-    bool                isused;
+    uint8_t             mode;        // this is now a combination of type and mode
+    uint8_t             num_afs: 6;  // up to 63 AFs
+    uint8_t             value  : 1;
+    uint8_t             used   : 1;
 } pin_obj_t;
 
 extern const mp_obj_type_t pin_type;
@@ -63,18 +128,14 @@ typedef struct {
     const pin_named_pin_t *named_pins;
 } pin_named_pins_obj_t;
 
-extern const mp_obj_type_t pin_cpu_pins_obj_type;
-extern const mp_obj_dict_t pin_cpu_pins_locals_dict;
+extern const mp_obj_type_t pin_board_pins_obj_type;
+extern const mp_obj_dict_t pin_board_pins_locals_dict;
 
 void pin_init0(void);
-void pin_verify_af (uint af);
-void pin_config(pin_obj_t *self, uint af, uint mode, uint type, uint strength);
-void pin_extint_register(pin_obj_t *self, uint32_t intmode, uint32_t priority);
+void pin_config(pin_obj_t *self, int af, uint mode, uint type, int value, uint strength);
 pin_obj_t *pin_find(mp_obj_t user_obj);
-pin_obj_t *pin_find_named_pin(const mp_obj_dict_t *named_pins, mp_obj_t name);
-pin_obj_t *pin_find_pin_by_port_bit (const mp_obj_dict_t *named_pins, uint port, uint bit);
-uint32_t pin_get_mode(const pin_obj_t *self);
-uint32_t pin_get_type(const pin_obj_t *self);
-uint32_t pin_get_strenght(const pin_obj_t *self);
+void pin_assign_pins_af (mp_obj_t *pins, uint32_t n_pins, uint32_t pull, uint32_t fn, uint32_t unit);
+uint8_t pin_find_peripheral_unit (const mp_obj_t pin, uint8_t fn, uint8_t type);
+uint8_t pin_find_peripheral_type (const mp_obj_t pin, uint8_t fn, uint8_t unit);
 
 #endif  // PYBPIN_H_

cc3200/mods/pybrtc.c

@@ -25,7 +25,7 @@
  * THE SOFTWARE.
  */
 
-#include <stdio.h>
+#include <std.h>
 
 #include "py/mpconfig.h"
 #include MICROPY_HAL_H
@@ -40,77 +40,89 @@
 #include "pybsleep.h"
 #include "mpcallback.h"
 #include "timeutils.h"
+#include "simplelink.h"
+#include "modnetwork.h"
+#include "modwlan.h"
+#include "mpexception.h"
 
 /// \moduleref pyb
 /// \class RTC - real time clock
-///
-/// The RTC is and independent clock that keeps track of the date
-/// and time.
-///
-/// Example usage:
-///
-///     rtc = pyb.RTC()
-///     rtc.datetime((2014, 5, 1, 4, 13, 0, 0, 0))
-///     print(rtc.datetime())
-
-/******************************************************************************
- DECLARE CONSTANTS
- ******************************************************************************/
-#define PYBRTC_CLOCK_FREQUENCY_HZ                   32768
-#define PYBRTC_MIN_INTERVAL_VALUE                   25
 
 /******************************************************************************
  DEFINE TYPES
  ******************************************************************************/
-typedef struct {
+typedef struct _pyb_rtc_obj_t {
+    mp_obj_base_t base;
     byte prwmode;
-} pybrtc_data_t;
+    bool alarmset;
+    bool repeat;
+} pyb_rtc_obj_t;
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-STATIC pybrtc_data_t pybrtc_data;
 STATIC const mp_cb_methods_t pybrtc_cb_methods;
+STATIC pyb_rtc_obj_t pyb_rtc_obj = {.prwmode = 0, .alarmset = false, .repeat = false};
+
+/******************************************************************************
+ DECLARE PRIVATE FUNCTIONS
+ ******************************************************************************/
+STATIC uint32_t pyb_rtc_reset (mp_obj_t self_in);
+STATIC void pyb_rtc_callback_enable (mp_obj_t self_in);
+STATIC void pyb_rtc_callback_disable (mp_obj_t self_in);
+STATIC mp_obj_t pyb_rtc_datetime(mp_obj_t self, const mp_obj_t datetime);
 
 /******************************************************************************
  DECLARE PUBLIC FUNCTIONS
  ******************************************************************************/
 __attribute__ ((section (".boot")))
-void pybrtc_init(void) {
+void pyb_rtc_pre_init(void) {
     // if the RTC was previously set, leave it alone
     if (MAP_PRCMSysResetCauseGet() == PRCM_POWER_ON) {
-        // fresh reset; configure the RTC Calendar
-        // set the date to 1st Jan 2015
-        // set the time to 00:00:00
-        uint32_t seconds = timeutils_seconds_since_2000(2015, 1, 1, 0, 0, 0);
-
         // Mark the RTC in use first
         MAP_PRCMRTCInUseSet();
-
-        // Now set the RTC calendar seconds
-        MAP_PRCMRTCSet(seconds, 0);
+        // reset the time and date
+        pyb_rtc_reset((mp_obj_t)&pyb_rtc_obj);
     }
 }
 
+uint32_t pyb_rtc_get_seconds (void) {
+    uint32_t seconds;
+    uint16_t mseconds;
+    MAP_PRCMRTCGet(&seconds, &mseconds);
+    return seconds;
+}
+
 /******************************************************************************
  DECLARE PRIVATE FUNCTIONS
  ******************************************************************************/
+STATIC uint32_t pyb_rtc_reset (mp_obj_t self_in) {
+    // fresh reset; configure the RTC Calendar
+    // set the date to 1st Jan 2015
+    // set the time to 00:00:00
+    uint32_t seconds = timeutils_seconds_since_2000(2015, 1, 1, 0, 0, 0);
+    // Now set the RTC calendar seconds
+    MAP_PRCMRTCSet(seconds, 0);
+    return seconds;
+}
+
 STATIC void pyb_rtc_callback_enable (mp_obj_t self_in) {
+    pyb_rtc_obj_t *self = self_in;
     // check the wake from param
-    if (pybrtc_data.prwmode & PYB_PWR_MODE_ACTIVE) {
+    if (self->prwmode & PYB_PWR_MODE_ACTIVE) {
         // enable the slow clock interrupt
         MAP_PRCMIntEnable(PRCM_INT_SLOW_CLK_CTR);
-    }
-    else {
+    } else {
         // just in case it was already enabled before
         MAP_PRCMIntDisable(PRCM_INT_SLOW_CLK_CTR);
     }
-    pybsleep_configure_timer_wakeup (pybrtc_data.prwmode);
+    pybsleep_configure_timer_wakeup (self->prwmode);
 }
 
 STATIC void pyb_rtc_callback_disable (mp_obj_t self_in) {
+    pyb_rtc_obj_t *self = self_in;
     // check the wake from param
-    if (pybrtc_data.prwmode & PYB_PWR_MODE_ACTIVE) {
+    if (self->prwmode & PYB_PWR_MODE_ACTIVE) {
         // disable the slow clock interrupt
         MAP_PRCMIntDisable(PRCM_INT_SLOW_CLK_CTR);
     }
@@ -120,79 +132,224 @@ STATIC void pyb_rtc_callback_disable (mp_obj_t self_in) {
     (void)MAP_PRCMIntStatus();
 }
 
+STATIC uint pyb_rtc_datetime_s_us(const mp_obj_t datetime, uint32_t *seconds) {
+    timeutils_struct_time_t tm;
+    uint32_t useconds;
+
+    // set date and time
+    mp_obj_t *items;
+    uint len;
+    mp_obj_get_array(datetime, &len, &items);
+
+    // verify the tuple
+    if (len < 3 || len > 8) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    }
+
+    tm.tm_year = mp_obj_get_int(items[0]);
+    tm.tm_mon = mp_obj_get_int(items[1]);
+    tm.tm_mday = mp_obj_get_int(items[2]);
+    if (len < 7) {
+        useconds = 0;
+    } else {
+        useconds = mp_obj_get_int(items[6]);
+    }
+    if (len < 6) {
+        tm.tm_sec = 0;
+    } else {
+        tm.tm_sec = mp_obj_get_int(items[5]);
+    }
+    if (len < 5) {
+        tm.tm_min = 0;
+    } else {
+        tm.tm_min = mp_obj_get_int(items[4]);
+    }
+    if (len < 4) {
+        tm.tm_hour = 0;
+    } else {
+        tm.tm_hour = mp_obj_get_int(items[3]);
+    }
+    *seconds = timeutils_seconds_since_2000(tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+    return useconds;
+}
+
+/// The 8-tuple has the same format as CPython's datetime object:
+///
+///     (year, month, day, hours, minutes, seconds, milliseconds, tzinfo=None)
+///
+STATIC mp_obj_t pyb_rtc_datetime(mp_obj_t self, const mp_obj_t datetime) {
+    uint32_t seconds;
+    uint32_t useconds;
+
+    if (datetime != MP_OBJ_NULL) {
+        useconds = pyb_rtc_datetime_s_us(datetime, &seconds);
+        MAP_PRCMRTCSet(seconds, RTC_U16MS_CYCLES(useconds / 1000));
+    } else {
+        seconds = pyb_rtc_reset(self);
+    }
+
+    // set WLAN time and date, this is needed to verify certificates
+    wlan_set_current_time(seconds);
+    return mp_const_none;
+}
+
 /******************************************************************************/
 // Micro Python bindings
 
-/// \method datetime([datetimetuple])
-/// Get or set the date and time of the RTC.
-///
-/// With no arguments, this method returns an 8-tuple with the current
-/// date and time. With 1 argument (being an 8-tuple) it sets the date
-/// and time.
-///
-/// The 8-tuple has the following format:
-///
-///     (year, month, day, weekday, hours, minutes, seconds, milliseconds)
-///
-/// `weekday` is 0-6 for Monday through Sunday.
-///
-mp_obj_t pyb_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) {
+STATIC const mp_arg_t pyb_rtc_init_args[] = {
+    { MP_QSTR_id,                             MP_ARG_INT, {.u_int = 0} },
+    { MP_QSTR_datetime,                       MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+};
+STATIC mp_obj_t pyb_rtc_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // parse args
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_rtc_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_rtc_init_args, args);
+
+    // check the peripheral id
+    if (args[0].u_int != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
+
+    // setup the object
+    pyb_rtc_obj_t *self = &pyb_rtc_obj;
+    self->base.type = &pyb_rtc_type;
+
+    // set the time and date
+    pyb_rtc_datetime((mp_obj_t)&pyb_rtc_obj, args[1].u_obj);
+
+    // return constant object
+    return (mp_obj_t)&pyb_rtc_obj;
+}
+
+STATIC mp_obj_t pyb_rtc_init (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_rtc_init_args) - 1];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &pyb_rtc_init_args[1], args);
+    return pyb_rtc_datetime(pos_args[0], args[0].u_obj);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_rtc_init_obj, 1, pyb_rtc_init);
+
+STATIC mp_obj_t pyb_rtc_now (mp_obj_t self_in) {
     timeutils_struct_time_t tm;
     uint32_t seconds;
     uint16_t mseconds;
 
-    if (n_args == 1) {
-        // get the seconds and the milliseconds from the RTC
-        MAP_PRCMRTCGet(&seconds, &mseconds);
-        mseconds = RTC_CYCLES_U16MS(mseconds);
-        timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
+    // get the seconds and the milliseconds from the RTC
+    MAP_PRCMRTCGet(&seconds, &mseconds);
+    mseconds = RTC_CYCLES_U16MS(mseconds);
+    timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
 
-        mp_obj_t tuple[8] = {
-            mp_obj_new_int(tm.tm_year),
-            mp_obj_new_int(tm.tm_mon),
-            mp_obj_new_int(tm.tm_mday),
-            mp_obj_new_int(tm.tm_wday),
-            mp_obj_new_int(tm.tm_hour),
-            mp_obj_new_int(tm.tm_min),
-            mp_obj_new_int(tm.tm_sec),
-            mp_obj_new_int(mseconds)
-        };
-        return mp_obj_new_tuple(8, tuple);
-    } else {
-        // set date and time
-        mp_obj_t *items;
-        mp_obj_get_array_fixed_n(args[1], 8, &items);
-
-        tm.tm_year = mp_obj_get_int(items[0]);
-        tm.tm_mon = mp_obj_get_int(items[1]);
-        tm.tm_mday = mp_obj_get_int(items[2]);
-        // Skip the weekday
-        tm.tm_hour = mp_obj_get_int(items[4]);
-        tm.tm_min = mp_obj_get_int(items[5]);
-        tm.tm_sec = mp_obj_get_int(items[6]);
-        mseconds = mp_obj_get_int(items[7]);
-
-        seconds = timeutils_seconds_since_2000(tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
-        mseconds = RTC_U16MS_CYCLES(mseconds);
-        MAP_PRCMRTCSet(seconds, mseconds);
-
-        return mp_const_none;
-    }
+    mp_obj_t tuple[8] = {
+        mp_obj_new_int(tm.tm_year),
+        mp_obj_new_int(tm.tm_mon),
+        mp_obj_new_int(tm.tm_mday),
+        mp_obj_new_int(tm.tm_hour),
+        mp_obj_new_int(tm.tm_min),
+        mp_obj_new_int(tm.tm_sec),
+        mp_obj_new_int(mseconds * 1000),
+        mp_const_none
+    };
+    return mp_obj_new_tuple(8, tuple);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_rtc_datetime_obj, 1, 2, pyb_rtc_datetime);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_rtc_now_obj, pyb_rtc_now);
+
+STATIC mp_obj_t pyb_rtc_deinit (mp_obj_t self_in) {
+    pyb_rtc_reset (self_in);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_rtc_deinit_obj, pyb_rtc_deinit);
+
+STATIC mp_obj_t pyb_rtc_alarm (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    STATIC const mp_arg_t allowed_args[] = {
+        { MP_QSTR_id,                            MP_ARG_INT,  {.u_int = 0} },
+        { MP_QSTR_time,                          MP_ARG_OBJ,  {.u_obj = MP_OBJ_NULL} },
+        { MP_QSTR_repeat,     MP_ARG_KW_ONLY   | MP_ARG_BOOL, {.u_bool = false} },
+    };
+
+    // parse args
+    pyb_rtc_obj_t *self = pos_args[0];
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), allowed_args, args);
+
+    // check the alarm id
+    if (args[0].u_int != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
+
+    uint32_t a_seconds;
+    uint16_t a_mseconds;
+    if (MP_OBJ_IS_TYPE(args[1].u_obj, &mp_type_tuple)) { // datetime tuple given
+        a_mseconds = pyb_rtc_datetime_s_us (args[1].u_obj, &a_seconds) / 1000;
+    } else { // then it must be an integer or MP_OBJ_NULL
+        uint32_t c_seconds;
+        uint16_t c_mseconds;
+        if (MP_OBJ_IS_INT(args[1].u_obj)) {
+            a_seconds = 0, a_mseconds = mp_obj_get_int(args[1].u_obj);
+        } else {
+            a_seconds = 1, a_mseconds = 0;
+        }
+        // get the seconds and the milliseconds from the RTC
+        MAP_PRCMRTCGet(&c_seconds, &c_mseconds);
+        a_mseconds += RTC_CYCLES_U16MS(c_mseconds);
+        // calculate the future time
+        a_seconds += c_seconds + (a_mseconds / 1000);
+        a_mseconds -= ((a_mseconds / 1000) * 1000);
+    }
+
+    // disable the interrupt before updating anything
+    pyb_rtc_callback_disable((mp_obj_t)self);
+
+    // set the match value
+    MAP_PRCMRTCMatchSet(a_seconds, a_mseconds);
+
+    // enabled it again (according to the power mode)
+    pyb_rtc_callback_enable((mp_obj_t)self);
+
+    // set the alarmset flag and store the repeat one
+    self->alarmset = true;
+    self->repeat = args[2].u_bool;
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_rtc_alarm_obj, 1, pyb_rtc_alarm);
+
+STATIC mp_obj_t pyb_rtc_alarm_left (mp_obj_t self_in) {
+    pyb_rtc_obj_t *self = self_in;
+    uint32_t a_seconds, c_seconds;
+    uint16_t a_mseconds, c_mseconds;
+    int32_t ms_left;
+
+    // get the alarm time
+    MAP_PRCMRTCMatchGet(&a_seconds, &a_mseconds);
+    a_mseconds = RTC_CYCLES_U16MS(a_mseconds);
+    // get the current time
+    MAP_PRCMRTCGet(&c_seconds, &c_mseconds);
+    c_mseconds = RTC_CYCLES_U16MS(c_mseconds);
+    // calculate the ms left
+    ms_left = ((a_seconds * 1000) + a_mseconds) - ((c_seconds * 1000) + c_mseconds);
+    if (!self->alarmset || ms_left < 0) {
+        ms_left = 0;
+    }
+    return mp_obj_new_int(ms_left);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_rtc_alarm_left_obj, pyb_rtc_alarm_left);
 
 /// \method callback(handler, value, pwrmode)
 /// Creates a callback object associated with the real time clock
 /// min num of arguments is 1 (value). The value is the alarm time
 /// in the future, in msec
+/// FIXME
 STATIC mp_obj_t pyb_rtc_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     mp_arg_val_t args[mpcallback_INIT_NUM_ARGS];
     mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, mpcallback_INIT_NUM_ARGS, mpcallback_init_args, args);
+    pyb_rtc_obj_t *self = pos_args[0];
 
     // check if any parameters were passed
     mp_obj_t _callback = mpcallback_find((mp_obj_t)&pyb_rtc_obj);
-    if (kw_args->used > 0 || !_callback) {
-        uint32_t f_mseconds = args[3].u_int;
+    if (kw_args->used > 0) {
+        uint32_t f_mseconds = MAX(1, mp_obj_get_int(args[3].u_obj));
         uint32_t seconds;
         uint16_t mseconds;
         // get the seconds and the milliseconds from the RTC
@@ -204,17 +361,16 @@ STATIC mp_obj_t pyb_rtc_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp
         mseconds += f_mseconds - ((f_mseconds / 1000) * 1000);
 
         // disable the interrupt before updating anything
-        // (the object is not relevant here, the function already knows it)
-        pyb_rtc_callback_disable(NULL);
+        pyb_rtc_callback_disable((mp_obj_t)&pyb_rtc_obj);
 
         // set the match value
         MAP_PRCMRTCMatchSet(seconds, mseconds);
 
-        // save the match data for later
-        pybrtc_data.prwmode = args[4].u_int;
+        // save the power mode data for later
+        self->prwmode = args[4].u_int;
 
         // create the callback
-        _callback = mpcallback_new ((mp_obj_t)&pyb_rtc_obj, args[1].u_obj, &pybrtc_cb_methods);
+        _callback = mpcallback_new ((mp_obj_t)&pyb_rtc_obj, args[1].u_obj, &pybrtc_cb_methods, true);
 
         // set the lpds callback
         pybsleep_set_timer_lpds_callback(_callback);
@@ -222,22 +378,29 @@ STATIC mp_obj_t pyb_rtc_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp
         // the interrupt priority is ignored since it's already set to to highest level by the sleep module
         // to make sure that the wakeup callbacks are always called first when resuming from sleep
 
-        // enable the interrupt (the object is not relevant here, the function already knows it)
-        pyb_rtc_callback_enable(NULL);
+        // enable the interrupt
+        pyb_rtc_callback_enable((mp_obj_t)&pyb_rtc_obj);
+    } else if (!_callback) {
+        _callback = mpcallback_new ((mp_obj_t)&pyb_rtc_obj, mp_const_none, &pybrtc_cb_methods, false);
     }
     return _callback;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_rtc_callback_obj, 1, pyb_rtc_callback);
 
 STATIC const mp_map_elem_t pyb_rtc_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR_datetime), (mp_obj_t)&pyb_rtc_datetime_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_callback), (mp_obj_t)&pyb_rtc_callback_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_init),            (mp_obj_t)&pyb_rtc_init_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),          (mp_obj_t)&pyb_rtc_deinit_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_now),             (mp_obj_t)&pyb_rtc_now_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_alarm),           (mp_obj_t)&pyb_rtc_alarm_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_alarm_left),      (mp_obj_t)&pyb_rtc_alarm_left_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_callback),        (mp_obj_t)&pyb_rtc_callback_obj },
 };
 STATIC MP_DEFINE_CONST_DICT(pyb_rtc_locals_dict, pyb_rtc_locals_dict_table);
 
-STATIC const mp_obj_type_t pyb_rtc_type = {
+const mp_obj_type_t pyb_rtc_type = {
     { &mp_type_type },
     .name = MP_QSTR_RTC,
+    .make_new = pyb_rtc_make_new,
     .locals_dict = (mp_obj_t)&pyb_rtc_locals_dict,
 };
 
@@ -246,5 +409,3 @@ STATIC const mp_cb_methods_t pybrtc_cb_methods = {
     .enable = pyb_rtc_callback_enable,
     .disable = pyb_rtc_callback_disable,
 };
-
-const mp_obj_base_t pyb_rtc_obj = {&pyb_rtc_type};

cc3200/mods/pybrtc.h

@@ -31,8 +31,9 @@
 #define RTC_U16MS_CYCLES(msec)      ((msec * 1024) / 1000)
 #define RTC_CYCLES_U16MS(cycles)    ((cycles * 1000) / 1024)
 
-extern const mp_obj_base_t pyb_rtc_obj;
+extern const mp_obj_type_t pyb_rtc_type;
 
-void pybrtc_init(void);
+extern void pyb_rtc_pre_init(void);
+extern uint32_t pyb_rtc_get_seconds (void);
 
 #endif  // PYBRTC_H_

cc3200/mods/pybsd.c

@@ -37,61 +37,46 @@
 #include "prcm.h"
 #include "gpio.h"
 #include "sdhost.h"
-#include "pybpin.h"
-#include "pybsd.h"
 #include "ff.h"
 #include "diskio.h"
 #include "sd_diskio.h"
-#include "simplelink.h"
-#include "debug.h"
+#include "pybsd.h"
 #include "mpexception.h"
 #include "pybsleep.h"
+#include "pybpin.h"
+#include "pins.h"
 
-
-#if MICROPY_HW_HAS_SDCARD
-
+/******************************************************************************
+ DEFINE PRIVATE CONSTANTS
+ ******************************************************************************/
 #define PYBSD_FREQUENCY_HZ              15000000    // 15MHz
 
-typedef struct {
-    mp_obj_base_t base;
-    FATFS        *fatfs;
-    pin_obj_t    *pin_clk;
-    bool         pinsset;
-    bool         enabled;
-} pybsd_obj_t;
+/******************************************************************************
+ DECLARE PUBLIC DATA
+ ******************************************************************************/
+pybsd_obj_t pybsd_obj = {.pin_clk = MP_OBJ_NULL, .enabled = false};
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-STATIC pybsd_obj_t pybsd_obj;
+STATIC const mp_obj_t pyb_sd_def_pin[3] = {&pin_GP10, &pin_GP11, &pin_GP15};
 
 /******************************************************************************
  DECLARE PRIVATE FUNCTIONS
  ******************************************************************************/
-STATIC mp_obj_t pybsd_make_new (mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args);
-STATIC mp_obj_t pybsd_disable (mp_obj_t self_in);
-STATIC mp_obj_t pybsd_enable (mp_obj_t self_in);
-
-/******************************************************************************
- DEFINE PUBLIC FUNCTIONS
- ******************************************************************************/
-__attribute__ ((section (".boot")))
-void pybsd_init0 (void) {
-    // allocate memory for the sd file system
-    ASSERT ((pybsd_obj.fatfs = mem_Malloc(sizeof(FATFS))) != NULL);
-}
-
-void pybsd_deinit (void) {
-    pybsd_disable ((mp_obj_t)&pybsd_obj);
-}
+STATIC void pyb_sd_hw_init (pybsd_obj_t *self);
+STATIC mp_obj_t pyb_sd_make_new (mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args);
+STATIC mp_obj_t pyb_sd_deinit (mp_obj_t self_in);
 
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/
-/// Initalizes the sd card driver
-STATIC void pybsd_init (pybsd_obj_t *self) {
-    // Configure the clock pin as output only
-    MAP_PinDirModeSet(self->pin_clk->pin_num, PIN_DIR_MODE_OUT);
+/// Initalizes the sd card hardware driver
+STATIC void pyb_sd_hw_init (pybsd_obj_t *self) {
+    if (self->pin_clk) {
+        // Configure the clock pin as output only
+        MAP_PinDirModeSet(((pin_obj_t *)(self->pin_clk))->pin_num, PIN_DIR_MODE_OUT);
+    }
     // Enable SD peripheral clock
     MAP_PRCMPeripheralClkEnable(PRCM_SDHOST, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
     // Reset MMCHS
@@ -100,110 +85,99 @@ STATIC void pybsd_init (pybsd_obj_t *self) {
     MAP_SDHostInit(SDHOST_BASE);
     // Configure the card clock
     MAP_SDHostSetExpClk(SDHOST_BASE, MAP_PRCMPeripheralClockGet(PRCM_SDHOST), PYBSD_FREQUENCY_HZ);
+    // Set card rd/wr block len
+    MAP_SDHostBlockSizeSet(SDHOST_BASE, SD_SECTOR_SIZE);
+    self->enabled = true;
+}
+
+STATIC mp_obj_t pyb_sd_init_helper (pybsd_obj_t *self, const mp_arg_val_t *args) {
+    // assign the pins
+    mp_obj_t pins_o = args[0].u_obj;
+    if (pins_o != mp_const_none) {
+        mp_obj_t *pins;
+        mp_uint_t n_pins = MP_ARRAY_SIZE(pyb_sd_def_pin);
+        if (pins_o == MP_OBJ_NULL) {
+            // use the default pins
+            pins = (mp_obj_t *)pyb_sd_def_pin;
+        } else {
+            mp_obj_get_array(pins_o, &n_pins, &pins);
+            if (n_pins != MP_ARRAY_SIZE(pyb_sd_def_pin)) {
+                nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+            }
+        }
+        pin_assign_pins_af (pins, n_pins, PIN_TYPE_STD_PU, PIN_FN_SD, 0);
+        // save the pins clock
+        self->pin_clk = pin_find(pins[0]);
+    }
+
+    pyb_sd_hw_init (self);
+    if (sd_disk_init() != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
+    }
+
+    // register it with the sleep module
+    pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pyb_sd_hw_init);
+    return mp_const_none;
 }
 
 /******************************************************************************/
 // Micro Python bindings
 //
 
-/// \classmethod \constructor()
-/// Configure the pins used for the sd card.
-///   May receive 0, or 6 arguments.
-///
-/// Usage:
-///    sd = pyb.SD()
-////
-///    sd = pyb.SD(d0_pin, d0_af, clk_pin, clk_af, cmd_pin, cmd_af)
-///
-STATIC mp_obj_t pybsd_make_new (mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
-    mp_arg_check_num(n_args, n_kw, 0, 6, false);
-
-    if (n_args == 6) {
-        // save the clock pin for later use
-        pybsd_obj.pin_clk = (pin_obj_t *)pin_find(args[2]);
-
-        // configure the data pin with pull-up enabled
-        pin_config ((pin_obj_t *)pin_find(args[0]), mp_obj_get_int(args[1]), 0, PIN_TYPE_STD_PU, PIN_STRENGTH_4MA);
-        // configure the clock pin
-        pin_config (pybsd_obj.pin_clk, mp_obj_get_int(args[3]), 0, PIN_TYPE_STD, PIN_STRENGTH_4MA);
-        // configure the command pin with pull-up enabled
-        pin_config ((pin_obj_t *)pin_find(args[4]), mp_obj_get_int(args[5]), 0, PIN_TYPE_STD_PU, PIN_STRENGTH_4MA);
-
-        pybsd_obj.pinsset = true;
-        pybsd_obj.base.type = &pyb_sd_type;
-    }
-    else if (!pybsd_obj.pinsset) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_num_type_invalid_arguments));
-    }
-
-    return &pybsd_obj;
-}
-
-/// \method enable()
-/// Enables the sd card and mounts the file system
-STATIC mp_obj_t pybsd_enable (mp_obj_t self_in) {
-    pybsd_obj_t *self = self_in;
-
-    if (!self->enabled) {
-        // do the init first
-        pybsd_init (self);
-
-        // try to mount the sd card on /sd
-        if (FR_OK != f_mount(self->fatfs, "/sd", 1)) {
-            nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
-        }
-
-        mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd));
-        mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd_slash_lib));
-
-        // register it with the sleep module
-        pybsleep_add ((const mp_obj_t)&pybsd_obj, (WakeUpCB_t)pybsd_init);
-        self->enabled = true;
-    }
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pybsd_enable_obj, pybsd_enable);
-
-/// \method disable()
-/// Disables the sd card and unmounts the file system
-STATIC mp_obj_t pybsd_disable (mp_obj_t self_in) {
-    pybsd_obj_t *self = self_in;
-    if (self->enabled) {
-        self->enabled = false;
-        // unmount the sd card
-        f_mount (NULL, "/sd", 1);
-        // remove sd paths from mp_sys_path
-        mp_obj_list_remove(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd));
-        mp_obj_list_remove(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_sd_slash_lib));
-
-        // disable the peripheral
-        MAP_PRCMPeripheralClkDisable(PRCM_SDHOST, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
-
-        // de-initialze de sd card at diskio level
-        sd_disk_deinit();
-
-        // unregister it with the sleep module
-        pybsleep_remove (self);
-
-        // change the drive in case it was /sd
-        f_chdrive("/flash");
-    }
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pybsd_disable_obj, pybsd_disable);
-
-STATIC const mp_map_elem_t pybsd_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR_enable),          (mp_obj_t)&pybsd_enable_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_disable),         (mp_obj_t)&pybsd_disable_obj },
+STATIC const mp_arg_t pyb_sd_init_args[] = {
+    { MP_QSTR_id,                          MP_ARG_INT, {.u_int = 0} },
+    { MP_QSTR_pins,                        MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
 };
-STATIC MP_DEFINE_CONST_DICT(pybsd_locals_dict, pybsd_locals_dict_table);
+STATIC mp_obj_t pyb_sd_make_new (mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // parse args
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_sd_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_sd_init_args, args);
+
+    // check the peripheral id
+    if (args[0].u_int != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
+
+    // setup and initialize the object
+    mp_obj_t self = &pybsd_obj;
+    pybsd_obj.base.type = &pyb_sd_type;
+    pyb_sd_init_helper (self, &args[1]);
+    return self;
+}
+
+STATIC mp_obj_t pyb_sd_init (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_sd_init_args) - 1];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &pyb_sd_init_args[1], args);
+    return pyb_sd_init_helper(pos_args[0], args);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_sd_init_obj, 1, pyb_sd_init);
+
+STATIC mp_obj_t pyb_sd_deinit (mp_obj_t self_in) {
+    pybsd_obj_t *self = self_in;
+    // disable the peripheral
+    self->enabled = false;
+    MAP_PRCMPeripheralClkDisable(PRCM_SDHOST, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
+    // de-initialze the sd card at diskio level
+    sd_disk_deinit();
+    // unregister it from the sleep module
+    pybsleep_remove (self);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_sd_deinit_obj, pyb_sd_deinit);
+
+STATIC const mp_map_elem_t pyb_sd_locals_dict_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR_init),            (mp_obj_t)&pyb_sd_init_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),          (mp_obj_t)&pyb_sd_deinit_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(pyb_sd_locals_dict, pyb_sd_locals_dict_table);
 
 const mp_obj_type_t pyb_sd_type = {
     { &mp_type_type },
     .name = MP_QSTR_SD,
-    .make_new = pybsd_make_new,
-    .locals_dict = (mp_obj_t)&pybsd_locals_dict,
+    .make_new = pyb_sd_make_new,
+    .locals_dict = (mp_obj_t)&pyb_sd_locals_dict,
 };
-
-#endif // MICROPY_HW_HAS_SDCARD

cc3200/mods/pybsd.h

@@ -26,11 +26,19 @@
 #ifndef PYBSD_H_
 #define PYBSD_H_
 
-#if MICROPY_HW_HAS_SDCARD
+/******************************************************************************
+ DEFINE PUBLIC TYPES
+ ******************************************************************************/
+typedef struct {
+    mp_obj_base_t base;
+    mp_obj_t      pin_clk;
+    bool          enabled;
+} pybsd_obj_t;
+
+/******************************************************************************
+ DECLARE EXPORTED DATA
+ ******************************************************************************/
+extern pybsd_obj_t pybsd_obj;
 extern const mp_obj_type_t pyb_sd_type;
 
-void pybsd_init0 (void);
-void pybsd_deinit (void);
-#endif
-
 #endif // PYBSD_H_

cc3200/mods/pybsleep.c

@@ -45,6 +45,7 @@
 #include "pybsleep.h"
 #include "pybpin.h"
 #include "simplelink.h"
+#include "modnetwork.h"
 #include "modwlan.h"
 #include "osi.h"
 #include "debug.h"
@@ -52,6 +53,9 @@
 #include "mpcallback.h"
 #include "mperror.h"
 #include "sleeprestore.h"
+#include "serverstask.h"
+#include "antenna.h"
+#include "cryptohash.h"
 
 /******************************************************************************
  DECLARE PRIVATE CONSTANTS
@@ -123,7 +127,7 @@ STATIC nvic_reg_store_t    *nvic_reg_store;
 STATIC pybsleep_data_t   pybsleep_data = {NULL, NULL, NULL, 0};
 volatile arm_cm4_core_regs_t vault_arm_registers;
 STATIC pybsleep_reset_cause_t pybsleep_reset_cause = PYB_SLP_PWRON_RESET;
-STATIC pybsleep_reset_cause_t pybsleep_wake_reason = PYB_SLP_WAKED_PWRON;
+STATIC pybsleep_wake_reason_t pybsleep_wake_reason = PYB_SLP_WAKED_PWRON;
 
 /******************************************************************************
  DECLARE PRIVATE FUNCTIONS
@@ -134,7 +138,7 @@ STATIC NORETURN void pybsleep_suspend_enter (void);
 void pybsleep_suspend_exit (void);
 STATIC void pybsleep_obj_wakeup (void);
 STATIC void PRCMInterruptHandler (void);
-STATIC void pybsleep_iopark (void);
+STATIC void pybsleep_iopark (bool hibernate);
 STATIC bool setup_timer_lpds_wake (void);
 STATIC bool setup_timer_hibernate_wake (void);
 
@@ -175,7 +179,7 @@ void pybsleep_init0 (void) {
             pybsleep_reset_cause = PYB_SLP_WDT_RESET;
             break;
         case PRCM_HIB_EXIT:
-            if (PRCMWasResetBecauseOfWDT()) {
+            if (PRCMGetSpecialBit(PRCM_WDT_RESET_BIT)) {
                 pybsleep_reset_cause = PYB_SLP_WDT_RESET;
             }
             else {
@@ -208,10 +212,9 @@ void pybsleep_add (const mp_obj_t obj, WakeUpCB_t wakeup) {
     sleep_obj->base.type = &pybsleep_type;
     sleep_obj->obj = obj;
     sleep_obj->wakeup = wakeup;
-    // only add objects once
-    if (!pybsleep_find(sleep_obj)) {
-        mp_obj_list_append(&MP_STATE_PORT(pybsleep_obj_list), sleep_obj);
-    }
+    // remove it in case it was already registered
+    pybsleep_remove (obj);
+    mp_obj_list_append(&MP_STATE_PORT(pybsleep_obj_list), sleep_obj);
 }
 
 void pybsleep_remove (const mp_obj_t obj) {
@@ -337,7 +340,7 @@ STATIC NORETURN void pybsleep_suspend_enter (void) {
     mperror_heartbeat_switch_off();
 
     // park the gpio pins
-    pybsleep_iopark();
+    pybsleep_iopark(false);
 
     // store the cpu registers
     sleep_store();
@@ -395,6 +398,11 @@ void pybsleep_suspend_exit (void) {
     // ungate the clock to the shared spi bus
     MAP_PRCMPeripheralClkEnable(PRCM_SSPI, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
 
+#if MICROPY_HW_ANTENNA_DIVERSITY
+    // re-configure the antenna selection pins
+    antenna_init0();
+#endif
+
     // reinitialize simplelink's interface
     sl_IfOpen (NULL, 0);
 
@@ -404,6 +412,9 @@ void pybsleep_suspend_exit (void) {
     // reconfigure all the previously enabled interrupts
     mpcallback_wake_all();
 
+    // we need to init the crypto hash engine again
+    CRYPTOHASH_Init();
+
     // trigger a sw interrupt
     MAP_IntPendSet(INT_PRCM);
 
@@ -429,7 +440,7 @@ STATIC void PRCMInterruptHandler (void) {
             pybsleep_wake_reason = PYB_SLP_WAKED_BY_GPIO;
             break;
         case PRCM_LPDS_TIMER:
-            // disable the timer as a wake-up source
+            // disable the timer as wake-up source
             pybsleep_data.timer_wake_pwrmode &= ~PYB_PWR_MODE_LPDS;
             MAP_PRCMLPDSWakeupSourceDisable(PRCM_LPDS_TIMER);
             mpcallback_handler(pybsleep_data.timer_lpds_wake_cb);
@@ -448,31 +459,28 @@ STATIC void pybsleep_obj_wakeup (void) {
     }
 }
 
-STATIC void pybsleep_iopark (void) {
-    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_cpu_pins_locals_dict);
+STATIC void pybsleep_iopark (bool hibernate) {
+    mp_map_t *named_map = mp_obj_dict_get_map((mp_obj_t)&pin_board_pins_locals_dict);
     for (uint i = 0; i < named_map->used; i++) {
         pin_obj_t * pin = (pin_obj_t *)named_map->table[i].value;
-        // skip the sflash pins since these are shared with the network processor
         switch (pin->pin_num) {
-        case PIN_11:
-        case PIN_12:
-        case PIN_13:
-        case PIN_14:
 #ifdef DEBUG
-        // also skip the JTAG pins
+        // skip the JTAG pins
         case PIN_16:
         case PIN_17:
         case PIN_19:
         case PIN_20:
-#endif
             break;
+#endif
         default:
             // enable a weak pull-down if the pin is unused
-            if (!pin->isused) {
+            if (!pin->used) {
                 MAP_PinConfigSet(pin->pin_num, pin->strength, PIN_TYPE_STD_PD);
             }
-            // make it an input
-            MAP_PinDirModeSet(pin->pin_num, PIN_DIR_MODE_IN);
+            if (hibernate) {
+                // make it an input
+                MAP_PinDirModeSet(pin->pin_num, PIN_DIR_MODE_IN);
+            }
             break;
         }
     }
@@ -487,9 +495,25 @@ STATIC void pybsleep_iopark (void) {
     HWREG(0x4402E0F4) &= ~(0x3 << 8);
     HWREG(0x4402E0F4) |= (0x1 << 8);
 
-    // park the antenna selection pins
-    HWREG(0x4402E108) = 0x00000E61;
-    HWREG(0x4402E10C) = 0x00000E61;
+    // if the board has antenna diversity, only park the antenna
+    // selection pins when going into hibernation
+#if MICROPY_HW_ANTENNA_DIVERSITY
+    if (hibernate) {
+#endif
+        // park the antenna selection pins
+        // (tri-stated with pull down enabled)
+        HWREG(0x4402E108) = 0x00000E61;
+        HWREG(0x4402E10C) = 0x00000E61;
+#if MICROPY_HW_ANTENNA_DIVERSITY
+    } else {
+        // park the antenna selection pins
+        // (tri-stated without changing the pull up/down resistors)
+        HWREG(0x4402E108) &= ~0x000000FF;
+        HWREG(0x4402E108) |=  0x00000C61;
+        HWREG(0x4402E10C) &= ~0x000000FF;
+        HWREG(0x4402E10C) |=  0x00000C61;
+    }
+#endif
 }
 
 STATIC bool setup_timer_lpds_wake (void) {
@@ -593,6 +617,7 @@ STATIC mp_obj_t pyb_sleep_suspend (mp_obj_t self_in) {
     // do we need network wake-up?
     if (pybsleep_data.wlan_lpds_wake_cb) {
         MAP_PRCMLPDSWakeupSourceEnable (PRCM_LPDS_HOST_IRQ);
+        server_sleep_sockets();
     }
     else {
         MAP_PRCMLPDSWakeupSourceDisable (PRCM_LPDS_HOST_IRQ);
@@ -629,7 +654,7 @@ STATIC mp_obj_t pyb_sleep_hibernate (mp_obj_t self_in) {
     wlan_stop(SL_STOP_TIMEOUT);
     pybsleep_flash_powerdown();
     // must be done just before entering hibernate mode
-    pybsleep_iopark();
+    pybsleep_iopark(true);
     MAP_PRCMHibernateEnter();
     return mp_const_none;
 }

cc3200/mods/pybspi.c

@@ -43,28 +43,11 @@
 #include "pybspi.h"
 #include "mpexception.h"
 #include "pybsleep.h"
+#include "pybpin.h"
+#include "pins.h"
 
 /// \moduleref pyb
 /// \class SPI - a master-driven serial protocol
-///
-/// SPI is a serial protocol that is driven by a master.  At the physical level
-/// there are 3 lines: SCK, MOSI, MISO.
-///
-/// See usage model of I2C; SPI is very similar.  Main difference is
-/// parameters to init the SPI bus:
-///
-///     from pyb import SPI
-///     spi = SPI(2000000, bits=8, submode=0, cs=SPI.ACTIVE_LOW)
-///
-/// Only required parameter is the baudrate, in Hz. Submode may be 0-3.
-/// Bit accepts 8, 16, 32. Chip select values are ACTIVE_LOW and ACTIVE_HIGH
-///
-/// Additional method for SPI:
-///
-///     data = spi.send_recv(b'1234')        # send 4 bytes and receive 4 bytes
-///     buf = bytearray(4)
-///     spi.send_recv(b'1234', buf)          # send 4 bytes and receive 4 into buf
-///     spi.send_recv(buf, buf)              # send/recv 4 bytes from/to buf
 
 /******************************************************************************
  DEFINE TYPES
@@ -73,10 +56,8 @@ typedef struct _pyb_spi_obj_t {
     mp_obj_base_t base;
     uint baudrate;
     uint config;
-    vstr_t tx_vstr;
-    vstr_t rx_vstr;
-    uint tx_index;
-    uint rx_index;
+    byte polarity;
+    byte phase;
     byte submode;
     byte wlen;
 } pyb_spi_obj_t;
@@ -84,14 +65,15 @@ typedef struct _pyb_spi_obj_t {
 /******************************************************************************
  DEFINE CONSTANTS
  ******************************************************************************/
-#define PYBSPI_DEF_BAUDRATE                     1000000     // 1MHz
-#define PYBSPI_CS_NONE                          0xFF        // spi cs is controlled by the user
+#define PYBSPI_FIRST_BIT_MSB                    0
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
 STATIC pyb_spi_obj_t pyb_spi_obj = {.baudrate = 0};
 
+STATIC const mp_obj_t pyb_spi_def_pin[3] = {&pin_GP14, &pin_GP16, &pin_GP30};
+
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/
@@ -111,21 +93,19 @@ STATIC void pybspi_init (const pyb_spi_obj_t *self) {
 }
 
 STATIC void pybspi_tx (pyb_spi_obj_t *self, const void *data) {
-    uint32_t txdata = 0xFFFFFFFF;
-    if (data) {
-        switch (self->wlen) {
-        case 1:
-            txdata = (uint8_t)(*(char *)data);
-            break;
-        case 2:
-            txdata = (uint16_t)(*(uint16_t *)data);
-            break;
-        case 4:
-            txdata = (uint32_t)(*(uint32_t *)data);
-            break;
-        default:
-            return;
-        }
+    uint32_t txdata;
+    switch (self->wlen) {
+    case 1:
+        txdata = (uint8_t)(*(char *)data);
+        break;
+    case 2:
+        txdata = (uint16_t)(*(uint16_t *)data);
+        break;
+    case 4:
+        txdata = (uint32_t)(*(uint32_t *)data);
+        break;
+    default:
+        return;
     }
     MAP_SPIDataPut (GSPI_BASE, txdata);
 }
@@ -150,11 +130,14 @@ STATIC void pybspi_rx (pyb_spi_obj_t *self, void *data) {
     }
 }
 
-STATIC void pybspi_transfer (pyb_spi_obj_t *self, const char *txdata, char *rxdata, uint32_t len) {
+STATIC void pybspi_transfer (pyb_spi_obj_t *self, const char *txdata, char *rxdata, uint32_t len, uint32_t *txchar) {
+    if (!self->baudrate) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
     // send and receive the data
     MAP_SPICSEnable(GSPI_BASE);
-    for (int i = 0; i < len / self->wlen; i += self->wlen) {
-        pybspi_tx(self, txdata ? (const void *)&txdata[i] : NULL);
+    for (int i = 0; i < len; i += self->wlen) {
+        pybspi_tx(self, txdata ? (const void *)&txdata[i] : txchar);
         pybspi_rx(self, rxdata ? (void *)&rxdata[i] : NULL);
     }
     MAP_SPICSDisable(GSPI_BASE);
@@ -165,43 +148,22 @@ STATIC void pybspi_transfer (pyb_spi_obj_t *self, const char *txdata, char *rxda
 /******************************************************************************/
 STATIC void pyb_spi_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
     pyb_spi_obj_t *self = self_in;
-
     if (self->baudrate > 0) {
-        mp_printf(print, "<SPI0, SPI.MASTER, baudrate=%u, config=%u, submode=%u, bits=%u>",
-              self->baudrate, self->config, self->submode, (self->wlen * 8));
-    }
-    else {
-        mp_print_str(print, "<SPI0>");
+        mp_printf(print, "SPI(0, SPI.MASTER, baudrate=%u, bits=%u, polarity=%u, phase=%u, firstbit=SPI.MSB)",
+                  self->baudrate, (self->wlen * 8), self->polarity, self->phase);
+    } else {
+        mp_print_str(print, "SPI(0)");
     }
 }
 
-/// \method init(2000000, *, bits=8, submode=0, cs=SPI.ACTIVELOW)
-///
-/// Initialise the SPI bus with the given parameters:
-///
-///   - `baudrate` is the SCK clock rate.
-///   - `bits` is the transfer width size (8, 16, 32).
-///   - `submode` is the spi mode (0, 1, 2, 3).
-///   - `cs` can be ACTIVELOW, ACTIVEHIGH, or NONE
-static const mp_arg_t pybspi_init_args[] = {
-    { MP_QSTR_baudrate,     MP_ARG_REQUIRED | MP_ARG_INT,  },
-    { MP_QSTR_bits,         MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 8} },
-    { MP_QSTR_submode,      MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 0} },
-    { MP_QSTR_cs,           MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = SPI_CS_ACTIVELOW} },
-};
+STATIC mp_obj_t pyb_spi_init_helper(pyb_spi_obj_t *self, const mp_arg_val_t *args) {
+    // verify that mode is master
+    if (args[0].u_int != SPI_MODE_MASTER) {
+        goto invalid_args;
+    }
 
-STATIC mp_obj_t pyb_spi_init_helper(pyb_spi_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
-    // parse args
-    mp_arg_val_t args[MP_ARRAY_SIZE(pybspi_init_args)];
-    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(pybspi_init_args), pybspi_init_args, args);
-
-    uint submode = args[2].u_int;
-    uint cs = args[3].u_int;
     uint bits;
-
-    // save the word length for later use
-    self->wlen = args[1].u_int / 8;
-    switch (args[1].u_int) {
+    switch (args[2].u_int) {
     case 8:
         bits = SPI_WL_8;
         break;
@@ -212,22 +174,45 @@ STATIC mp_obj_t pyb_spi_init_helper(pyb_spi_obj_t *self, mp_uint_t n_args, const
         bits = SPI_WL_32;
         break;
     default:
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+        goto invalid_args;
         break;
     }
 
-    if (submode < SPI_SUB_MODE_0 || submode > SPI_SUB_MODE_3) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    uint polarity = args[3].u_int;
+    uint phase = args[4].u_int;
+    if (polarity > 1 || phase > 1) {
+        goto invalid_args;
     }
 
-    if (cs != SPI_CS_ACTIVELOW && cs != SPI_CS_ACTIVEHIGH) {
-        nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+    uint firstbit = args[5].u_int;
+    if (firstbit != PYBSPI_FIRST_BIT_MSB) {
+        goto invalid_args;
     }
 
     // build the configuration
-    self->baudrate = args[0].u_int;
-    self->config = bits | cs | SPI_SW_CTRL_CS | SPI_4PIN_MODE | SPI_TURBO_OFF;
-    self->submode = submode;
+    self->baudrate = args[1].u_int;
+    self->wlen = args[2].u_int >> 3;
+    self->config = bits | SPI_CS_ACTIVELOW | SPI_SW_CTRL_CS | SPI_4PIN_MODE | SPI_TURBO_OFF;
+    self->polarity = polarity;
+    self->phase = phase;
+    self->submode = (polarity << 1) | phase;
+
+    // assign the pins
+    mp_obj_t pins_o = args[6].u_obj;
+    if (pins_o != mp_const_none) {
+        mp_obj_t *pins;
+        mp_uint_t n_pins = 3;
+        if (pins_o == MP_OBJ_NULL) {
+            // use the default pins
+            pins = (mp_obj_t *)pyb_spi_def_pin;
+        } else {
+            mp_obj_get_array(pins_o, &n_pins, &pins);
+            if (n_pins != 3) {
+                goto invalid_args;
+            }
+        }
+        pin_assign_pins_af (pins, n_pins, PIN_TYPE_STD_PU, PIN_FN_SPI, 0);
+    }
 
     // init the bus
     pybspi_init((const pyb_spi_obj_t *)self);
@@ -236,35 +221,48 @@ STATIC mp_obj_t pyb_spi_init_helper(pyb_spi_obj_t *self, mp_uint_t n_args, const
     pybsleep_add((const mp_obj_t)self, (WakeUpCB_t)pybspi_init);
 
     return mp_const_none;
+
+invalid_args:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
 }
 
-/// \classmethod \constructor(bus, ...)
-///
-/// Construct an SPI object with the given baudrate.
-/// With no parameters, the SPI object is created but not
-/// initialised (it has the settings from the last initialisation of
-/// the bus, if any).  If extra arguments are given, the bus is initialised.
-/// See `init` for parameters of initialisation.
-///
-STATIC mp_obj_t pyb_spi_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
-    // check arguments
-    mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
+static const mp_arg_t pyb_spi_init_args[] = {
+    { MP_QSTR_id,                             MP_ARG_INT,  {.u_int = 0} },
+    { MP_QSTR_mode,                           MP_ARG_INT,  {.u_int = SPI_MODE_MASTER} },
+    { MP_QSTR_baudrate,     MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 1000000} },    // 1MHz
+    { MP_QSTR_bits,         MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 8} },
+    { MP_QSTR_polarity,     MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 0} },
+    { MP_QSTR_phase,        MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 0} },
+    { MP_QSTR_firstbit,     MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = PYBSPI_FIRST_BIT_MSB} },
+    { MP_QSTR_pins,         MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_obj = MP_OBJ_NULL} },
+};
+STATIC mp_obj_t pyb_spi_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // parse args
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_spi_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_spi_init_args, args);
 
+    // check the peripheral id
+    if (args[0].u_int != 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
+
+    // setup the object
     pyb_spi_obj_t *self = &pyb_spi_obj;
     self->base.type = &pyb_spi_type;
 
-    if (n_args > 0 || n_kw > 0) {
-        // start the peripheral
-        mp_map_t kw_args;
-        mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
-        pyb_spi_init_helper(self, n_args, args, &kw_args);
-    }
+    // start the peripheral
+    pyb_spi_init_helper(self, &args[1]);
 
     return self;
 }
 
-STATIC mp_obj_t pyb_spi_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
-    return pyb_spi_init_helper(args[0], n_args - 1, args + 1, kw_args);
+STATIC mp_obj_t pyb_spi_init(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_spi_init_args) - 1];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &pyb_spi_init_args[1], args);
+    return pyb_spi_init_helper(pos_args[0], args);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_spi_init_obj, 1, pyb_spi_init);
 
@@ -282,122 +280,112 @@ STATIC mp_obj_t pyb_spi_deinit(mp_obj_t self_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_spi_deinit_obj, pyb_spi_deinit);
 
-/// \method send(send)
-/// Send data on the bus:
-///
-/// - `send` is the data to send (a byte to send, or a buffer object).
-///
-STATIC mp_obj_t pyb_spi_send (mp_obj_t self_in, mp_obj_t send_o) {
+STATIC mp_obj_t pyb_spi_write (mp_obj_t self_in, mp_obj_t buf) {
+    // parse args
     pyb_spi_obj_t *self = self_in;
+
     // get the buffer to send from
     mp_buffer_info_t bufinfo;
     uint8_t data[1];
-    pyb_buf_get_for_send(send_o, &bufinfo, data);
+    pyb_buf_get_for_send(buf, &bufinfo, data);
 
     // just send
-    pybspi_transfer(self, (const char *)bufinfo.buf, NULL, bufinfo.len);
+    pybspi_transfer(self, (const char *)bufinfo.buf, NULL, bufinfo.len, NULL);
 
-    return mp_const_none;
+    // return the number of bytes written
+    return mp_obj_new_int(bufinfo.len);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_spi_send_obj, pyb_spi_send);
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_spi_write_obj, pyb_spi_write);
+
+STATIC mp_obj_t pyb_spi_read(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_nbytes,    MP_ARG_REQUIRED | MP_ARG_OBJ, },
+        { MP_QSTR_write,     MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = 0x00} },
+    };
+
+    // parse args
+    pyb_spi_obj_t *self = pos_args[0];
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), allowed_args, args);
 
-/// \method recv(recv)
-///
-/// Receive data on the bus:
-///
-///   - `recv` can be an integer, which is the number of bytes to receive,
-///      or a mutable buffer, which will be filled with received bytes.
-///
-/// Return: if `recv` is an integer then a new buffer of the bytes received,
-/// otherwise the same buffer that was passed in to `recv`.
-STATIC mp_obj_t pyb_spi_recv(mp_obj_t self_in, mp_obj_t recv_o) {
-    pyb_spi_obj_t *self = self_in;
     // get the buffer to receive into
     vstr_t vstr;
-    mp_obj_t o_ret = pyb_buf_get_for_recv(recv_o, &vstr);
+    pyb_buf_get_for_recv(args[0].u_obj, &vstr);
 
     // just receive
-    pybspi_transfer(self, NULL, vstr.buf, vstr.len);
+    uint32_t write = args[1].u_int;
+    pybspi_transfer(self, NULL, vstr.buf, vstr.len, &write);
 
     // return the received data
-    if (o_ret != MP_OBJ_NULL) {
-        return o_ret;
-    } else {
-        return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
-    }
+    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_spi_recv_obj, pyb_spi_recv);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_spi_read_obj, 1, pyb_spi_read);
 
-/// \method send_recv(send, recv)
-///
-/// Send and receive data on the bus at the same time:
-///
-///   - `send` is the data to send (an integer to send, or a buffer object).
-///   - `recv` is a mutable buffer which will be filled with received bytes.
-///      It can be the same as `send`, or omitted.  If omitted, a new buffer will
-///      be created.
-///
-/// Return: the buffer with the received bytes.
-STATIC mp_obj_t pyb_spi_send_recv (mp_uint_t n_args, const mp_obj_t *args) {
-    pyb_spi_obj_t *self = args[0];
+STATIC mp_obj_t pyb_spi_readinto(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_buf,       MP_ARG_REQUIRED | MP_ARG_OBJ, },
+        { MP_QSTR_write,     MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = 0x00} },
+    };
 
-    // get buffers to send from/receive to
-    mp_buffer_info_t bufinfo_send;
+    // parse args
+    pyb_spi_obj_t *self = pos_args[0];
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), allowed_args, args);
+
+    // get the buffer to receive into
+    vstr_t vstr;
+    pyb_buf_get_for_recv(args[0].u_obj, &vstr);
+
+    // just receive
+    uint32_t write = args[1].u_int;
+    pybspi_transfer(self, NULL, vstr.buf, vstr.len, &write);
+
+    // return the number of bytes received
+    return mp_obj_new_int(vstr.len);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_spi_readinto_obj, 1, pyb_spi_readinto);
+
+STATIC mp_obj_t pyb_spi_write_readinto (mp_obj_t self, mp_obj_t writebuf, mp_obj_t readbuf) {
+    // get buffers to write from/read to
+    mp_buffer_info_t bufinfo_write;
     uint8_t data_send[1];
-    mp_buffer_info_t bufinfo_recv;
-    vstr_t vstr_recv;
-    mp_obj_t o_ret;
+    mp_buffer_info_t bufinfo_read;
 
-    if (args[1] == args[2]) {
-        // same object for sending and receiving, it must be a r/w buffer
-        mp_get_buffer_raise(args[1], &bufinfo_send, MP_BUFFER_RW);
-        bufinfo_recv = bufinfo_send;
-        o_ret = args[1];
+    if (writebuf == readbuf) {
+        // same object for writing and reading, it must be a r/w buffer
+        mp_get_buffer_raise(writebuf, &bufinfo_write, MP_BUFFER_RW);
+        bufinfo_read = bufinfo_write;
     } else {
-        // get the buffer to send from
-        pyb_buf_get_for_send(args[1], &bufinfo_send, data_send);
+        // get the buffer to write from
+        pyb_buf_get_for_send(writebuf, &bufinfo_write, data_send);
 
-        // get the buffer to receive into
-        if (n_args == 2) {
-            // only the send was argument given, so create a fresh buffer of the send length
-            vstr_init_len(&vstr_recv, bufinfo_send.len);
-            bufinfo_recv.len = vstr_recv.len;
-            bufinfo_recv.buf = vstr_recv.buf;
-            o_ret = MP_OBJ_NULL;
-        }
-        else {
-            // recv argument given
-            mp_get_buffer_raise(args[2], &bufinfo_recv, MP_BUFFER_WRITE);
-            if (bufinfo_recv.len != bufinfo_send.len) {
-                nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
-            }
-            o_ret = args[2];
+        // get the read buffer
+        mp_get_buffer_raise(readbuf, &bufinfo_read, MP_BUFFER_WRITE);
+        if (bufinfo_read.len != bufinfo_write.len) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
         }
     }
 
     // send and receive
-    pybspi_transfer(self, (const char *)bufinfo_send.buf, vstr_recv.buf, bufinfo_send.len);
+    pybspi_transfer(self, (const char *)bufinfo_write.buf, bufinfo_read.buf, bufinfo_write.len, NULL);
 
-    // return the received data
-    if (o_ret != MP_OBJ_NULL) {
-        return o_ret;
-    } else {
-        return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr_recv);
-    }
+    // return the number of transferred bytes
+    return mp_obj_new_int(bufinfo_write.len);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_spi_send_recv_obj, 2, 3, pyb_spi_send_recv);
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(pyb_spi_write_readinto_obj, pyb_spi_write_readinto);
 
 STATIC const mp_map_elem_t pyb_spi_locals_dict_table[] = {
     // instance methods
     { MP_OBJ_NEW_QSTR(MP_QSTR_init),                (mp_obj_t)&pyb_spi_init_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),              (mp_obj_t)&pyb_spi_deinit_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_send),                (mp_obj_t)&pyb_spi_send_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_recv),                (mp_obj_t)&pyb_spi_recv_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_send_recv),           (mp_obj_t)&pyb_spi_send_recv_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_write),               (mp_obj_t)&pyb_spi_write_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_read),                (mp_obj_t)&pyb_spi_read_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_readinto),            (mp_obj_t)&pyb_spi_readinto_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_write_readinto),      (mp_obj_t)&pyb_spi_write_readinto_obj },
 
     // class constants
-    { MP_OBJ_NEW_QSTR(MP_QSTR_ACTIVE_LOW),          MP_OBJ_NEW_SMALL_INT(SPI_CS_ACTIVELOW) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_ACTIVE_HIGH),         MP_OBJ_NEW_SMALL_INT(SPI_CS_ACTIVEHIGH) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_MASTER),              MP_OBJ_NEW_SMALL_INT(SPI_MODE_MASTER) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_MSB),                 MP_OBJ_NEW_SMALL_INT(PYBSPI_FIRST_BIT_MSB) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(pyb_spi_locals_dict, pyb_spi_locals_dict_table);

cc3200/mods/pybtimer.c

@@ -0,0 +1,862 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "py/mpconfig.h"
+#include MICROPY_HAL_H
+#include "py/obj.h"
+#include "py/nlr.h"
+#include "py/runtime.h"
+#include "py/gc.h"
+#include "inc/hw_types.h"
+#include "inc/hw_ints.h"
+#include "inc/hw_memmap.h"
+#include "inc/hw_timer.h"
+#include "rom_map.h"
+#include "interrupt.h"
+#include "prcm.h"
+#include "timer.h"
+#include "pybtimer.h"
+#include "pybsleep.h"
+#include "mpcallback.h"
+#include "mpexception.h"
+
+
+/// \moduleref pyb
+/// \class Timer - generate periodic events, count events, and create PWM signals.
+///
+/// Each timer consists of a counter that counts up at a certain rate.  The rate
+/// at which it counts is the peripheral clock frequency (in Hz) divided by the
+/// timer prescaler.  When the counter reaches the timer period it triggers an
+/// event, and the counter resets back to zero.  By using the callback method,
+/// the timer event can call a Python function.
+///
+/// Example usage to toggle an LED at a fixed frequency:
+///
+///     tim = pyb.Timer(4)                                              # create a timer object using timer 4
+///     tim.init(mode=Timer.PERIODIC)                                   # initialize it in periodic mode
+///     tim_ch = tim.channel(Timer.A, freq=2)                           # configure channel A at a frequency of 2Hz
+///     tim_ch.callback(handler=lambda t:led.toggle())                  # toggle a LED on every cycle of the timer
+///
+/// Further examples:
+///
+///     tim1 = pyb.Timer(2, mode=Timer.EVENT_COUNT)                     # initialize it capture mode
+///     tim2 = pyb.Timer(1, mode=Timer.PWM)                             # initialize it in PWM mode
+///     tim_ch = tim1.channel(Timer.A, freq=1, polarity=Timer.POSITIVE) # start the event counter with a frequency of 1Hz and triggered by positive edges
+///     tim_ch = tim2.channel(Timer.B, freq=10000, duty_cycle=50)       # start the PWM on channel B with a 50% duty cycle
+///     tim_ch.time()                                                   # get the current time in usec (can also be set)
+///     tim_ch.freq(20)                                                 # set the frequency (can also get)
+///     tim_ch.duty_cycle(30)                                           # set the duty cycle to 30% (can also get)
+///     tim_ch.duty_cycle(30, Timer.NEGATIVE)                           # set the duty cycle to 30% and change the polarity to negative
+///     tim_ch.event_count()                                            # get the number of captured events
+///     tim_ch.event_time()                                             # get the the time of the last captured event
+///     tim_ch.period(2000000)                                          # change the period to 2 seconds
+///
+
+/******************************************************************************
+ DECLARE PRIVATE CONSTANTS
+ ******************************************************************************/
+#define PYBTIMER_NUM_TIMERS                         (4)
+#define PYBTIMER_POLARITY_POS                       (0x01)
+#define PYBTIMER_POLARITY_NEG                       (0x02)
+
+#define PYBTIMER_SRC_FREQ_HZ                        HAL_FCPU_HZ
+
+/******************************************************************************
+ DEFINE PRIVATE TYPES
+ ******************************************************************************/
+typedef struct _pyb_timer_obj_t {
+    mp_obj_base_t base;
+    uint32_t timer;
+    uint32_t config;
+    uint16_t intflags;
+    uint8_t peripheral;
+    uint8_t id;
+} pyb_timer_obj_t;
+
+typedef struct _pyb_timer_channel_obj_t {
+    mp_obj_base_t base;
+    struct _pyb_timer_obj_t *timer;
+    uint32_t frequency;
+    uint32_t period;
+    uint16_t channel;
+    uint8_t  polarity;
+    uint8_t  duty_cycle;
+} pyb_timer_channel_obj_t;
+
+/******************************************************************************
+ DEFINE PRIVATE DATA
+ ******************************************************************************/
+STATIC const mp_cb_methods_t pyb_timer_channel_cb_methods;
+STATIC pyb_timer_obj_t pyb_timer_obj[PYBTIMER_NUM_TIMERS] = {{.timer = TIMERA0_BASE, .peripheral = PRCM_TIMERA0},
+                                                             {.timer = TIMERA1_BASE, .peripheral = PRCM_TIMERA1},
+                                                             {.timer = TIMERA2_BASE, .peripheral = PRCM_TIMERA2},
+                                                             {.timer = TIMERA3_BASE, .peripheral = PRCM_TIMERA3}};
+STATIC const mp_obj_type_t pyb_timer_channel_type;
+
+/******************************************************************************
+ DECLARE PRIVATE FUNCTIONS
+ ******************************************************************************/
+STATIC mp_obj_t pyb_timer_channel_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args);
+STATIC void timer_disable (pyb_timer_obj_t *tim);
+STATIC void TIMER0AIntHandler(void);
+STATIC void TIMER0BIntHandler(void);
+STATIC void TIMER1AIntHandler(void);
+STATIC void TIMER1BIntHandler(void);
+STATIC void TIMER2AIntHandler(void);
+STATIC void TIMER2BIntHandler(void);
+STATIC void TIMER3AIntHandler(void);
+STATIC void TIMER3BIntHandler(void);
+
+/******************************************************************************
+ DEFINE PUBLIC FUNCTIONS
+ ******************************************************************************/
+void timer_init0 (void) {
+    mp_obj_list_init(&MP_STATE_PORT(pyb_timer_channel_obj_list), 0);
+}
+
+void pyb_timer_channel_callback_enable (mp_obj_t self_in) {
+    pyb_timer_channel_obj_t *self = self_in;
+    MAP_TimerIntClear(self->timer->timer, self->timer->intflags & self->channel);
+    MAP_TimerIntEnable(self->timer->timer, self->timer->intflags & self->channel);
+}
+
+void pyb_timer_channel_callback_disable (mp_obj_t self_in) {
+    pyb_timer_channel_obj_t *self = self_in;
+    MAP_TimerIntDisable(self->timer->timer, self->timer->intflags & self->channel);
+}
+
+pyb_timer_channel_obj_t *pyb_timer_channel_find (uint32_t timer, uint16_t channel_n) {
+    for (mp_uint_t i = 0; i < MP_STATE_PORT(pyb_timer_channel_obj_list).len; i++) {
+        pyb_timer_channel_obj_t *ch = ((pyb_timer_channel_obj_t *)(MP_STATE_PORT(pyb_timer_channel_obj_list).items[i]));
+        // any 32-bit timer must be matched by any of its 16-bit versions
+        if (ch->timer->timer == timer && ((ch->channel & TIMER_A) == channel_n || (ch->channel & TIMER_B) == channel_n)) {
+            return ch;
+        }
+    }
+    return MP_OBJ_NULL;
+}
+
+void pyb_timer_channel_remove (pyb_timer_channel_obj_t *ch) {
+    pyb_timer_channel_obj_t *channel;
+    if ((channel = pyb_timer_channel_find(ch->timer->timer, ch->channel))) {
+        mp_obj_list_remove(&MP_STATE_PORT(pyb_timer_channel_obj_list), channel);
+    }
+}
+
+void pyb_timer_channel_add (pyb_timer_channel_obj_t *ch) {
+    // remove it in case it already exists
+    pyb_timer_channel_remove(ch);
+    mp_obj_list_append(&MP_STATE_PORT(pyb_timer_channel_obj_list), ch);
+}
+
+STATIC void timer_disable (pyb_timer_obj_t *tim) {
+    // disable all timers and it's interrupts
+    MAP_TimerDisable(tim->timer, TIMER_A | TIMER_B);
+    MAP_TimerIntDisable(tim->timer, tim->intflags);
+    MAP_TimerIntClear(tim->timer, tim->intflags);
+    MAP_PRCMPeripheralClkDisable(tim->peripheral, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
+    memset(&pyb_timer_obj[tim->id], 0, sizeof(pyb_timer_obj_t));
+}
+
+// computes prescaler period and match value so timer triggers at freq-Hz
+STATIC uint32_t compute_prescaler_period_and_match_value(pyb_timer_channel_obj_t *ch, uint32_t *period_out, uint32_t *match_out) {
+    uint32_t maxcount = (ch->channel == (TIMER_A | TIMER_B)) ? 0xFFFFFFFF : 0xFFFF;
+    uint32_t prescaler;
+    uint32_t period_c = (ch->frequency > 0) ? PYBTIMER_SRC_FREQ_HZ / ch->frequency : ((PYBTIMER_SRC_FREQ_HZ / 1000000) * ch->period);
+
+    period_c = MAX(1, period_c) - 1;
+    if (period_c == 0) {
+        goto error;
+    }
+    prescaler = period_c >> 16;
+    *period_out = period_c;
+    if (prescaler > 0xFF && maxcount == 0xFFFF) {
+        goto error;
+    }
+    // check limit values for the duty cycle
+    if (ch->duty_cycle == 0) {
+        *match_out = period_c - 1;
+    }
+    else {
+        *match_out = period_c - ((period_c * ch->duty_cycle) / 100);
+    }
+    if ((ch->timer->config & 0x0F) == TIMER_CFG_A_PWM && (*match_out > 0xFFFF)) {
+        goto error;
+    }
+    return prescaler;
+
+error:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+
+STATIC void timer_init (pyb_timer_obj_t *tim) {
+    MAP_PRCMPeripheralClkEnable(tim->peripheral, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
+    MAP_PRCMPeripheralReset(tim->peripheral);
+    MAP_TimerConfigure(tim->timer, tim->config);
+}
+
+STATIC void timer_channel_init (pyb_timer_channel_obj_t *ch) {
+    // calculate the period, the prescaler and the match value
+    uint32_t period_c;
+    uint32_t match;
+    uint32_t prescaler = compute_prescaler_period_and_match_value(ch, &period_c, &match);
+
+    // set the prescaler
+    MAP_TimerPrescaleSet(ch->timer->timer, ch->channel, (prescaler < 0xFF) ? prescaler : 0);
+
+    // set the load value
+    MAP_TimerLoadSet(ch->timer->timer, ch->channel, period_c);
+
+    // configure the pwm if we are in such mode
+    if ((ch->timer->config & 0x0F) == TIMER_CFG_A_PWM) {
+        // invert the timer output if required
+        MAP_TimerControlLevel(ch->timer->timer, ch->channel, (ch->polarity == PYBTIMER_POLARITY_NEG) ? true : false);
+        // set the match value (which is simply the duty cycle translated to ticks)
+        MAP_TimerMatchSet(ch->timer->timer, ch->channel, match);
+    }
+    // configure the event edge type if we are in such mode
+    else if ((ch->timer->config & 0x0F) == TIMER_CFG_A_CAP_COUNT || (ch->timer->config & 0x0F) == TIMER_CFG_A_CAP_TIME) {
+        uint32_t polarity = TIMER_EVENT_BOTH_EDGES;
+        if (ch->polarity == PYBTIMER_POLARITY_POS) {
+            polarity = TIMER_EVENT_POS_EDGE;
+        }
+        else if (ch->polarity == PYBTIMER_POLARITY_NEG) {
+            polarity = TIMER_EVENT_NEG_EDGE;
+        }
+        MAP_TimerControlEvent(ch->timer->timer, ch->channel, polarity);
+    }
+
+#ifdef DEBUG
+    // stall the timer when the processor is halted while debugging
+    MAP_TimerControlStall(ch->timer->timer, ch->channel, true);
+#endif
+
+    // now enable the timer channel
+    MAP_TimerEnable(ch->timer->timer, ch->channel);
+}
+
+/******************************************************************************/
+/* Micro Python bindings                                                      */
+
+STATIC void pyb_timer_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
+    pyb_timer_obj_t *tim = self_in;
+    uint32_t mode = tim->config & 0xFF;
+
+    // timer mode
+    qstr mode_qst = MP_QSTR_PWM;
+    switch(mode) {
+    case TIMER_CFG_A_ONE_SHOT:
+        mode_qst = MP_QSTR_ONE_SHOT;
+        break;
+    case TIMER_CFG_A_PERIODIC:
+        mode_qst = MP_QSTR_PERIODIC;
+        break;
+    case TIMER_CFG_A_CAP_COUNT:
+        mode_qst = MP_QSTR_EDGE_COUNT;
+        break;
+    case TIMER_CFG_A_CAP_TIME:
+        mode_qst = MP_QSTR_EDGE_TIME;
+        break;
+    default:
+        break;
+    }
+    mp_printf(print, "<Timer%u, mode=Timer.%q>", (tim->id + 1), mode_qst);
+}
+
+/// \method init(mode, *, width)
+/// Initialise the timer.  Initialisation must give the desired mode
+/// and an optional timer width
+///
+///     tim.init(mode=Timer.ONE_SHOT, width=32)        # one shot mode
+///     tim.init(mode=Timer.PERIODIC)                  # configure in free running periodic mode
+///                                                      split into two 16-bit independent timers
+///
+/// Keyword arguments:
+///
+///   - `width` - specifies the width of the timer. Default is 32 bit mode. When in 16 bit mode
+///               the timer is splitted into 2 independent channels.
+///
+STATIC mp_obj_t pyb_timer_init_helper(pyb_timer_obj_t *tim, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_mode,         MP_ARG_REQUIRED | MP_ARG_INT, },
+        { MP_QSTR_width,        MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = 16} },
+    };
+
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    // check the mode
+    uint32_t _mode = args[0].u_int;
+    if (_mode != TIMER_CFG_A_ONE_SHOT && _mode != TIMER_CFG_A_PERIODIC && _mode != TIMER_CFG_A_CAP_COUNT &&
+        _mode != TIMER_CFG_A_CAP_TIME && _mode != TIMER_CFG_A_PWM) {
+        goto error;
+    }
+
+    // check the width
+    if (args[1].u_int != 16 && args[1].u_int != 32) {
+        goto error;
+    }
+    bool is16bit = (args[1].u_int == 16);
+
+    if (!is16bit && (_mode != TIMER_CFG_A_ONE_SHOT && _mode != TIMER_CFG_A_PERIODIC)) {
+        // 32-bit mode is only available when in free running modes
+        goto error;
+    }
+    tim->config = is16bit ? ((_mode | (_mode << 8)) | TIMER_CFG_SPLIT_PAIR) : _mode;
+
+    timer_init(tim);
+    // register it with the sleep module
+    pybsleep_add ((const mp_obj_t)tim, (WakeUpCB_t)timer_init);
+
+    return mp_const_none;
+
+error:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+
+/// \classmethod \constructor(id, ...)
+/// Construct a new timer object of the given id.  If additional
+/// arguments are given, then the timer is initialised by `init(...)`.
+/// `id` can be 1 to 4
+STATIC mp_obj_t pyb_timer_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    // check arguments
+    mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
+
+    // create a new Timer object
+    int32_t timer_idx = mp_obj_get_int(args[0]) - 1;
+    if (timer_idx < 0 || timer_idx > (PYBTIMER_NUM_TIMERS - 1)) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
+
+    pyb_timer_obj_t *tim = &pyb_timer_obj[timer_idx];
+    tim->base.type = &pyb_timer_type;
+    tim->id = timer_idx;
+
+    if (n_args > 1 || n_kw > 0) {
+        // start the peripheral
+        mp_map_t kw_args;
+        mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
+        pyb_timer_init_helper(tim, n_args - 1, args + 1, &kw_args);
+    }
+    return (mp_obj_t)tim;
+}
+
+// \method init()
+/// initializes the timer
+STATIC mp_obj_t pyb_timer_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
+    return pyb_timer_init_helper(args[0], n_args - 1, args + 1, kw_args);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_timer_init_obj, 1, pyb_timer_init);
+
+// \method deinit()
+/// disables the timer
+STATIC mp_obj_t pyb_timer_deinit(mp_obj_t self_in) {
+    pyb_timer_obj_t *self = self_in;
+    timer_disable(self);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_timer_deinit_obj, pyb_timer_deinit);
+
+/// \method channel(channel, *, freq, period, polarity, duty_cycle)
+/// Initialise the timer channel. Initialization requires at least a frequency param. With no
+/// extra params given besides the channel id, the channel is returned with the previous configuration
+/// os 'None', if it hasn't been initialized before.
+///
+///     tim1.channel(Timer.A, freq=1000)  # set channel A frequency to 1KHz
+///     tim2.channel(Timer.AB, freq=10)   # both channels (because it's a 32 bit timer) combined to create a 10Hz timer
+///
+///     when initialiazing the channel of a 32-bit timer, channel ID MUST be = Timer.AB
+///
+/// Keyword arguments:
+///
+///   - `freq`       - specifies the frequency in Hz.
+///   - `period`     - specifies the period in  microseconds.
+///   - `polarity`   - in PWM specifies the polarity of the pulse. In capture mode specifies the edge to capture.
+///                    in order to capture on both negative and positive edges, make it = Timer.POSITIVE | Timer.NEGATIVE.
+///   - `duty_cycle` - sets the duty cycle value
+///
+STATIC mp_obj_t pyb_timer_channel(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_freq,                MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = 0} },
+        { MP_QSTR_period,              MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = 0} },
+        { MP_QSTR_polarity,            MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = PYBTIMER_POLARITY_POS} },
+        { MP_QSTR_duty_cycle,          MP_ARG_KW_ONLY  | MP_ARG_INT, {.u_int = 0} },
+    };
+
+    pyb_timer_obj_t *tim = pos_args[0];
+    mp_int_t channel_n = mp_obj_get_int(pos_args[1]);
+
+    // verify that the timer has been already initialized
+    if (!tim->config) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
+    }
+    if (channel_n != TIMER_A && channel_n != TIMER_B && channel_n != (TIMER_A | TIMER_B)) {
+        // invalid channel
+        goto error;
+    }
+    if (channel_n == (TIMER_A | TIMER_B) && (tim->config & TIMER_CFG_SPLIT_PAIR)) {
+        // 32-bit channel selected when the timer is in 16-bit mode
+        goto error;
+    }
+
+    // if only the channel number is given return the previously
+    // allocated channel (or None if no previous channel)
+    if (n_args == 2 && kw_args->used == 0) {
+        pyb_timer_channel_obj_t *ch;
+        if ((ch = pyb_timer_channel_find(tim->timer, channel_n))) {
+            return ch;
+        }
+        return mp_const_none;
+    }
+
+    // parse the arguments
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    // throw an exception if both frequency and period are given
+    if (args[0].u_int != 0 && args[1].u_int != 0) {
+        goto error;
+    }
+    // check that at least one of them has a valid value
+    if (args[0].u_int <= 0 && args[1].u_int <= 0) {
+        goto error;
+    }
+    // check that the polarity is not 'both' in pwm mode
+    if ((tim->config & TIMER_A) == TIMER_CFG_A_PWM && args[2].u_int == (PYBTIMER_POLARITY_POS | PYBTIMER_POLARITY_NEG)) {
+        goto error;
+    }
+
+    // allocate a new timer channel
+    pyb_timer_channel_obj_t *ch = m_new_obj(pyb_timer_channel_obj_t);
+    ch->base.type = &pyb_timer_channel_type;
+    ch->timer = tim;
+    ch->channel = channel_n;
+
+    // get the frequency the polarity and the duty cycle
+    ch->frequency = args[0].u_int;
+    ch->period = args[1].u_int;
+    ch->polarity = args[2].u_int;
+    ch->duty_cycle = MIN(100, MAX(0, args[3].u_int));
+
+    timer_channel_init(ch);
+
+    // register it with the sleep module
+    pybsleep_add ((const mp_obj_t)ch, (WakeUpCB_t)timer_channel_init);
+
+    // add the timer to the list
+    pyb_timer_channel_add(ch);
+
+    return ch;
+
+error:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_timer_channel_obj, 2, pyb_timer_channel);
+
+STATIC const mp_map_elem_t pyb_timer_locals_dict_table[] = {
+    // instance methods
+    { MP_OBJ_NEW_QSTR(MP_QSTR_init),                    (mp_obj_t)&pyb_timer_init_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),                  (mp_obj_t)&pyb_timer_deinit_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_channel),                 (mp_obj_t)&pyb_timer_channel_obj },
+
+    // class constants
+    { MP_OBJ_NEW_QSTR(MP_QSTR_A),                       MP_OBJ_NEW_SMALL_INT(TIMER_A) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_B),                       MP_OBJ_NEW_SMALL_INT(TIMER_B) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ONE_SHOT),                MP_OBJ_NEW_SMALL_INT(TIMER_CFG_A_ONE_SHOT) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_PERIODIC),                MP_OBJ_NEW_SMALL_INT(TIMER_CFG_A_PERIODIC) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_EDGE_COUNT),              MP_OBJ_NEW_SMALL_INT(TIMER_CFG_A_CAP_COUNT) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_EDGE_TIME),               MP_OBJ_NEW_SMALL_INT(TIMER_CFG_A_CAP_TIME) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_PWM),                     MP_OBJ_NEW_SMALL_INT(TIMER_CFG_A_PWM) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_POSITIVE),                MP_OBJ_NEW_SMALL_INT(PYBTIMER_POLARITY_POS) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_NEGATIVE),                MP_OBJ_NEW_SMALL_INT(PYBTIMER_POLARITY_NEG) },
+};
+STATIC MP_DEFINE_CONST_DICT(pyb_timer_locals_dict, pyb_timer_locals_dict_table);
+
+const mp_obj_type_t pyb_timer_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_Timer,
+    .print = pyb_timer_print,
+    .make_new = pyb_timer_make_new,
+    .locals_dict = (mp_obj_t)&pyb_timer_locals_dict,
+};
+
+STATIC const mp_cb_methods_t pyb_timer_channel_cb_methods = {
+    .init = pyb_timer_channel_callback,
+    .enable = pyb_timer_channel_callback_enable,
+    .disable = pyb_timer_channel_callback_disable,
+};
+
+STATIC void TIMERGenericIntHandler(uint32_t timer, uint16_t channel) {
+    pyb_timer_channel_obj_t *self;
+    uint32_t status;
+
+    if ((self = pyb_timer_channel_find(timer, channel))) {
+        status = MAP_TimerIntStatus(self->timer->timer, true) & self->channel;
+        MAP_TimerIntClear(self->timer->timer, status);
+        mp_obj_t _callback = mpcallback_find(self);
+        mpcallback_handler(_callback);
+    }
+}
+
+STATIC void TIMER0AIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA0_BASE, TIMER_A);
+}
+
+STATIC void TIMER0BIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA0_BASE, TIMER_B);
+}
+
+STATIC void TIMER1AIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA1_BASE, TIMER_A);
+}
+
+STATIC void TIMER1BIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA1_BASE, TIMER_B);
+}
+
+STATIC void TIMER2AIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA2_BASE, TIMER_A);
+}
+
+STATIC void TIMER2BIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA2_BASE, TIMER_B);
+}
+
+STATIC void TIMER3AIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA3_BASE, TIMER_A);
+}
+
+STATIC void TIMER3BIntHandler(void) {
+    TIMERGenericIntHandler(TIMERA3_BASE, TIMER_B);
+}
+
+STATIC void pyb_timer_channel_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
+    pyb_timer_channel_obj_t *ch = self_in;
+    char *ch_id = "AB";
+    // timer channel
+    if (ch->channel == TIMER_A) {
+        ch_id = "A";
+    }
+    else if (ch->channel == TIMER_B) {
+        ch_id = "B";
+    }
+
+    mp_printf(print, "<%q %s, timer=%u, %q=%u", MP_QSTR_TimerChannel,
+              ch_id, (ch->timer->id + 1), MP_QSTR_freq, ch->frequency);
+
+    uint32_t mode = ch->timer->config & 0xFF;
+    if (mode == TIMER_CFG_A_CAP_COUNT || mode == TIMER_CFG_A_CAP_TIME || mode == TIMER_CFG_A_PWM) {
+        mp_printf(print, ", %q=Timer.", MP_QSTR_polarity);
+        switch (ch->polarity) {
+            case PYBTIMER_POLARITY_POS:
+                mp_printf(print, "POSITIVE");
+                break;
+            case PYBTIMER_POLARITY_NEG:
+                mp_printf(print, "NEGATIVE");
+                break;
+            default:
+                mp_printf(print, "BOTH");
+                break;
+        }
+        if (mode == TIMER_CFG_A_PWM) {
+            mp_printf(print, ", %q=%u", MP_QSTR_duty_cycle, ch->duty_cycle);
+        }
+    }
+    mp_printf(print, ">");
+}
+
+/// \method freq([value])
+/// get or set the frequency of the timer channel
+STATIC mp_obj_t pyb_timer_channel_freq(mp_uint_t n_args, const mp_obj_t *args) {
+    pyb_timer_channel_obj_t *ch = args[0];
+    if (n_args == 1) {
+        // get
+        return mp_obj_new_int(ch->frequency);
+    } else {
+        // set
+        int32_t _frequency = mp_obj_get_int(args[1]);
+        if (_frequency <= 0) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+        }
+        ch->frequency = _frequency;
+        ch->period = 1000000 / _frequency;
+        timer_channel_init(ch);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_channel_freq_obj, 1, 2, pyb_timer_channel_freq);
+
+/// \method period([value])
+/// get or set the period of the timer channel in microseconds
+STATIC mp_obj_t pyb_timer_channel_period(mp_uint_t n_args, const mp_obj_t *args) {
+    pyb_timer_channel_obj_t *ch = args[0];
+    if (n_args == 1) {
+        // get
+        return mp_obj_new_int(ch->period);
+    } else {
+        // set
+        int32_t _period = mp_obj_get_int(args[1]);
+        if (_period <= 0) {
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+        }
+        ch->period = _period;
+        ch->frequency = 1000000 / _period;
+        timer_channel_init(ch);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_channel_period_obj, 1, 2, pyb_timer_channel_period);
+
+/// \method time([value])
+/// get or set the value of the timer channel in microseconds
+STATIC mp_obj_t pyb_timer_channel_time(mp_uint_t n_args, const mp_obj_t *args) {
+    pyb_timer_channel_obj_t *ch = args[0];
+    uint32_t value;
+    // calculate the period, the prescaler and the match value
+    uint32_t period_c;
+    uint32_t match;
+    (void)compute_prescaler_period_and_match_value(ch, &period_c, &match);
+    if (n_args == 1) {
+        // get
+        value = (ch->channel == TIMER_B) ? HWREG(ch->timer->timer + TIMER_O_TBV) : HWREG(ch->timer->timer + TIMER_O_TAV);
+        // return the current timer value in microseconds
+        // substract value to period since we are always operating in count-down mode
+        uint32_t time_t = (1000 * (period_c - value)) / period_c;
+        return mp_obj_new_int((time_t * 1000) / ch->frequency);
+    }
+    else {
+        // set
+        value = (mp_obj_get_int(args[1]) * ((ch->frequency * period_c) / 1000)) / 1000;
+        if ((value > 0xFFFF) && (ch->timer->config & TIMER_CFG_SPLIT_PAIR)) {
+            // this exceeds the maximum value of a 16-bit timer
+            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+        }
+        // write period minus value since we are always operating in count-down mode
+        TimerValueSet (ch->timer->timer, ch->channel, (period_c - value));
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_channel_time_obj, 1, 2, pyb_timer_channel_time);
+
+/// \method event_count()
+/// get the number of events triggered by the configured edge
+STATIC mp_obj_t pyb_timer_channel_event_count(mp_obj_t self_in) {
+    pyb_timer_channel_obj_t *ch = self_in;
+    return mp_obj_new_int(MAP_TimerValueGet(ch->timer->timer, ch->channel == (TIMER_A | TIMER_B) ? TIMER_A : ch->channel));
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_timer_channel_event_count_obj, pyb_timer_channel_event_count);
+
+/// \method event_time()
+/// get the time at which the last event was triggered
+STATIC mp_obj_t pyb_timer_channel_event_time(mp_obj_t self_in) {
+    pyb_timer_channel_obj_t *ch = self_in;
+    // calculate the period, the prescaler and the match value
+    uint32_t period_c;
+    uint32_t match;
+    (void)compute_prescaler_period_and_match_value(ch, &period_c, &match);
+    uint32_t value = MAP_TimerValueGet(ch->timer->timer, ch->channel == (TIMER_A | TIMER_B) ? TIMER_A : ch->channel);
+    // substract value to period since we are always operating in count-down mode
+    uint32_t time_t = (1000 * (period_c - value)) / period_c;
+    return mp_obj_new_int((time_t * 1000) / ch->frequency);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_timer_channel_event_time_obj, pyb_timer_channel_event_time);
+
+/// \method duty_cycle()
+/// get or set the duty cycle when in PWM mode
+STATIC mp_obj_t pyb_timer_channel_duty_cycle(mp_uint_t n_args, const mp_obj_t *args) {
+    pyb_timer_channel_obj_t *ch = args[0];
+    if (n_args == 1) {
+        // get
+        return mp_obj_new_int(ch->duty_cycle);
+    }
+    else {
+        // duty cycle must be converted from percentage to ticks
+        // calculate the period, the prescaler and the match value
+        uint32_t period_c;
+        uint32_t match;
+        ch->duty_cycle = MIN(100, MAX(0, mp_obj_get_int(args[1])));
+        compute_prescaler_period_and_match_value(ch, &period_c, &match);
+        if (n_args == 3) {
+            // set the new polarity if requested
+            ch->polarity = mp_obj_get_int(args[2]);
+            MAP_TimerControlLevel(ch->timer->timer, ch->channel, (ch->polarity == PYBTIMER_POLARITY_NEG) ? true : false);
+        }
+        MAP_TimerMatchSet(ch->timer->timer, ch->channel, match);
+        return mp_const_none;
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_timer_channel_duty_cycle_obj, 1, 3, pyb_timer_channel_duty_cycle);
+
+/// \method callback(handler, priority, value)
+/// create a callback object associated with the timer channel
+STATIC mp_obj_t pyb_timer_channel_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    mp_arg_val_t args[mpcallback_INIT_NUM_ARGS];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, mpcallback_INIT_NUM_ARGS, mpcallback_init_args, args);
+
+    pyb_timer_channel_obj_t *ch = pos_args[0];
+    mp_obj_t _callback = mpcallback_find(ch);
+    if (kw_args->used > 0) {
+        // convert the priority to the correct value
+        uint priority = mpcallback_translate_priority (args[2].u_int);
+
+        // validate the power mode
+        uint pwrmode = args[4].u_int;
+        if (pwrmode != PYB_PWR_MODE_ACTIVE) {
+            goto invalid_args;
+        }
+
+        uint32_t _config = (ch->channel == TIMER_B) ? ((ch->timer->config & TIMER_B) >> 8) : (ch->timer->config & TIMER_A);
+        uint32_t c_value = mp_obj_get_int(args[3].u_obj);
+
+        // validate and set the value if we are in edge count mode
+        if (_config == TIMER_CFG_A_CAP_COUNT) {
+            if (!c_value || c_value > 0xFFFF) {
+                // zero or exceeds the maximum value of a 16-bit timer
+                goto invalid_args;
+            }
+            MAP_TimerMatchSet(ch->timer->timer, ch->channel, c_value);
+        }
+
+        // disable the callback first
+        pyb_timer_channel_callback_disable(ch);
+
+        uint8_t shift = (ch->channel == TIMER_B) ? 8 : 0;
+        switch (_config) {
+        case TIMER_CFG_A_ONE_SHOT:
+        case TIMER_CFG_A_PERIODIC:
+            ch->timer->intflags |= TIMER_TIMA_TIMEOUT << shift;
+            break;
+        case TIMER_CFG_A_CAP_COUNT:
+            ch->timer->intflags |= TIMER_CAPA_MATCH << shift;
+            // set the match value and make 1 the minimum
+            MAP_TimerMatchSet(ch->timer->timer, ch->channel, MAX(1, c_value));
+            break;
+        case TIMER_CFG_A_CAP_TIME:
+            ch->timer->intflags |= TIMER_CAPA_EVENT << shift;
+            break;
+        case TIMER_CFG_A_PWM:
+            // special case for the PWM match interrupt
+            ch->timer->intflags |= ((ch->channel & TIMER_A) == TIMER_A) ? TIMER_TIMA_MATCH : TIMER_TIMB_MATCH;
+            break;
+        default:
+            break;
+        }
+        // special case for a 32-bit timer
+        if (ch->channel == (TIMER_A | TIMER_B)) {
+           ch->timer->intflags |= (ch->timer->intflags << 8);
+        }
+
+        void (*pfnHandler)(void);
+        uint32_t intregister;
+        switch (ch->timer->timer) {
+        case TIMERA0_BASE:
+            if (ch->channel == TIMER_B) {
+                pfnHandler = &TIMER0BIntHandler;
+                intregister = INT_TIMERA0B;
+            } else {
+                pfnHandler = &TIMER0AIntHandler;
+                intregister = INT_TIMERA0A;
+            }
+            break;
+        case TIMERA1_BASE:
+            if (ch->channel == TIMER_B) {
+                pfnHandler = &TIMER1BIntHandler;
+                intregister = INT_TIMERA1B;
+            } else {
+                pfnHandler = &TIMER1AIntHandler;
+                intregister = INT_TIMERA1A;
+            }
+            break;
+        case TIMERA2_BASE:
+            if (ch->channel == TIMER_B) {
+                pfnHandler = &TIMER2BIntHandler;
+                intregister = INT_TIMERA2B;
+            } else {
+                pfnHandler = &TIMER2AIntHandler;
+                intregister = INT_TIMERA2A;
+            }
+            break;
+        default:
+            if (ch->channel == TIMER_B) {
+                pfnHandler = &TIMER3BIntHandler;
+                intregister = INT_TIMERA3B;
+            } else {
+                pfnHandler = &TIMER3AIntHandler;
+                intregister = INT_TIMERA3A;
+            }
+            break;
+        }
+
+        // register the interrupt and configure the priority
+        MAP_IntPrioritySet(intregister, priority);
+        MAP_TimerIntRegister(ch->timer->timer, ch->channel, pfnHandler);
+
+        // create the callback
+        _callback = mpcallback_new (ch, args[1].u_obj, &pyb_timer_channel_cb_methods, true);
+
+        // reload the timer
+        uint32_t period_c;
+        uint32_t match;
+        compute_prescaler_period_and_match_value(ch, &period_c, &match);
+        MAP_TimerLoadSet(ch->timer->timer, ch->channel, period_c);
+
+        // enable the callback before returning
+        pyb_timer_channel_callback_enable(ch);
+    } else if (!_callback) {
+        _callback = mpcallback_new (ch, mp_const_none, &pyb_timer_channel_cb_methods, false);
+    }
+    return _callback;
+
+invalid_args:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_timer_channel_callback_obj, 1, pyb_timer_channel_callback);
+
+STATIC const mp_map_elem_t pyb_timer_channel_locals_dict_table[] = {
+    // instance methods
+    { MP_OBJ_NEW_QSTR(MP_QSTR_freq),                 (mp_obj_t)&pyb_timer_channel_freq_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_period),               (mp_obj_t)&pyb_timer_channel_period_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_time),                 (mp_obj_t)&pyb_timer_channel_time_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_event_count),          (mp_obj_t)&pyb_timer_channel_event_count_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_event_time),           (mp_obj_t)&pyb_timer_channel_event_time_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_duty_cycle),           (mp_obj_t)&pyb_timer_channel_duty_cycle_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_callback),             (mp_obj_t)&pyb_timer_channel_callback_obj },
+};
+STATIC MP_DEFINE_CONST_DICT(pyb_timer_channel_locals_dict, pyb_timer_channel_locals_dict_table);
+
+STATIC const mp_obj_type_t pyb_timer_channel_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_TimerChannel,
+    .print = pyb_timer_channel_print,
+    .locals_dict = (mp_obj_t)&pyb_timer_channel_locals_dict,
+};
+

cc3200/mods/pybtimer.h

@@ -3,6 +3,7 @@
  *
  * The MIT License (MIT)
  *
+ * Copyright (c) 2013, 2014 Damien P. George
  * Copyright (c) 2015 Daniel Campora
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -24,15 +25,13 @@
  * THE SOFTWARE.
  */
 
-#ifndef HASH_H_
-#define HASH_H_
+/******************************************************************************
+ DECLARE EXPORTED DATA
+ ******************************************************************************/
+extern const mp_obj_type_t pyb_timer_type;
 
 /******************************************************************************
  DECLARE PUBLIC FUNCTIONS
  ******************************************************************************/
-extern void HASH_Init (void);
-extern void HASH_SHAMD5Start (uint32_t algo, uint32_t blocklen);
-extern void HASH_SHAMD5Update (uint8_t *data, uint32_t datalen);
-extern void HASH_SHAMD5Read (uint8_t *hash);
+void timer_init0 (void);
 
-#endif /* HASH_H_ */

cc3200/mods/pybuart.c

@@ -51,56 +51,44 @@
 #include "mpexception.h"
 #include "py/mpstate.h"
 #include "osi.h"
+#include "utils.h"
+#include "pin.h"
+#include "pybpin.h"
+#include "pins.h"
 
 /// \moduleref pyb
 /// \class UART - duplex serial communication bus
-///
-/// UART implements the standard UART/USART duplex serial communications protocol.  At
-/// the physical level it consists of 2 lines: RX and TX.
-///
-/// UART objects can be created and initialised using:
-///
-///     from pyb import UART
-///
-///     uart = UART(0, 9600)                         # init with given baudrate
-///     uart.init(9600, bits=8, stop=1, parity=None) # init with given parameters
-///
-/// Bits can be 5, 6, 7, 8, parity can be None, 0 (even), 1 (odd). Stop can be 1 or 2.
-///
-/// A UART object acts like a stream object and reading and writing is done
-/// using the standard stream methods:
-///
-///     uart.read(10)       # read 10 characters, returns a bytes object
-///     uart.readall()      # read all available characters
-///     uart.readline()     # read a line
-///     uart.readinto(buf)  # read and store into the given buffer
-///     uart.write('abc')   # write the 3 characters
-///
-/// Individual characters can be read/written using:
-///
-///     uart.readchar()     # read 1 character and returns it as an integer
-///     uart.writechar(42)  # write 1 character
-///
-/// To check if there is anything to be read, use:
-///
-///     uart.any()          # returns True if any characters waiting
 
 /******************************************************************************
  DEFINE CONSTANTS
- ******************************************************************************/
-#define PYBUART_TX_WAIT_MS                  1
-#define PYBUART_TX_MAX_TIMEOUT_MS           5
+ *******-***********************************************************************/
+#define PYBUART_FRAME_TIME_US(baud)             ((11 * 1000000) / baud)
+#define PYBUART_2_FRAMES_TIME_US(baud)          (PYBUART_FRAME_TIME_US(baud) * 2)
+#define PYBUART_RX_TIMEOUT_US(baud)             (PYBUART_2_FRAMES_TIME_US(baud))
+
+#define PYBUART_TX_WAIT_US(baud)                ((PYBUART_FRAME_TIME_US(baud)) + 1)
+#define PYBUART_TX_MAX_TIMEOUT_MS               (5)
+
+#define PYBUART_RX_BUFFER_LEN                   (128)
+
+// interrupt triggers
+#define E_UART_TRIGGER_RX_ANY                   (0x01)
+#define E_UART_TRIGGER_RX_HALF                  (0x02)
+#define E_UART_TRIGGER_RX_FULL                  (0x04)
+#define E_UART_TRIGGER_TX_DONE                  (0x08)
 
 /******************************************************************************
  DECLARE PRIVATE FUNCTIONS
  ******************************************************************************/
 STATIC void uart_init (pyb_uart_obj_t *self);
-STATIC bool uart_rx_wait (pyb_uart_obj_t *self, uint32_t timeout);
+STATIC bool uart_rx_wait (pyb_uart_obj_t *self);
+STATIC void uart_check_init(pyb_uart_obj_t *self);
 STATIC void UARTGenericIntHandler(uint32_t uart_id);
 STATIC void UART0IntHandler(void);
 STATIC void UART1IntHandler(void);
 STATIC void uart_callback_enable (mp_obj_t self_in);
 STATIC void uart_callback_disable (mp_obj_t self_in);
+STATIC mp_obj_t pyb_uart_deinit(mp_obj_t self_in);
 
 /******************************************************************************
  DEFINE PRIVATE TYPES
@@ -113,35 +101,45 @@ struct _pyb_uart_obj_t {
     uint config;
     uint flowcontrol;
     byte *read_buf;                     // read buffer pointer
-    uint16_t timeout;                   // timeout waiting for first char
-    uint16_t timeout_char;              // timeout waiting between chars
-    uint16_t read_buf_len;              // len in chars; buf can hold len-1 chars
     volatile uint16_t read_buf_head;    // indexes first empty slot
     uint16_t read_buf_tail;             // indexes first full slot (not full if equals head)
     byte peripheral;
+    byte irq_trigger;
+    bool callback_enabled;
 };
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-STATIC pyb_uart_obj_t pyb_uart_obj[PYB_NUM_UARTS];
+STATIC pyb_uart_obj_t pyb_uart_obj[PYB_NUM_UARTS] = { {.reg = UARTA0_BASE, .baudrate = 0, .read_buf = NULL, .peripheral = PRCM_UARTA0},
+                                                      {.reg = UARTA1_BASE, .baudrate = 0, .read_buf = NULL, .peripheral = PRCM_UARTA1} };
 STATIC const mp_cb_methods_t uart_cb_methods;
 
+STATIC const mp_obj_t pyb_uart_def_pin[PYB_NUM_UARTS][2] = { {&pin_GP1, &pin_GP2}, {&pin_GP3, &pin_GP4} };
+
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
  ******************************************************************************/
 void uart_init0 (void) {
+    // save references of the UART objects, to prevent the read buffers from being trashed by the gc
+    MP_STATE_PORT(pyb_uart_objs)[0] = &pyb_uart_obj[0];
+    MP_STATE_PORT(pyb_uart_objs)[1] = &pyb_uart_obj[1];
 }
 
-bool uart_rx_any(pyb_uart_obj_t *self) {
-    return (self->read_buf_tail != self->read_buf_head || MAP_UARTCharsAvail(self->reg));
+uint32_t uart_rx_any(pyb_uart_obj_t *self) {
+    if (self->read_buf_tail != self->read_buf_head) {
+        // buffering  via irq
+        return (self->read_buf_head > self->read_buf_tail) ? self->read_buf_head - self->read_buf_tail :
+                PYBUART_RX_BUFFER_LEN - self->read_buf_tail + self->read_buf_head;
+    }
+    return MAP_UARTCharsAvail(self->reg) ? 1 : 0;
 }
 
 int uart_rx_char(pyb_uart_obj_t *self) {
     if (self->read_buf_tail != self->read_buf_head) {
-        // buffering via IRQ
+        // buffering via irq
         int data = self->read_buf[self->read_buf_tail];
-        self->read_buf_tail = (self->read_buf_tail + 1) % self->read_buf_len;
+        self->read_buf_tail = (self->read_buf_tail + 1) % PYBUART_RX_BUFFER_LEN;
         return data;
     } else {
         // no buffering
@@ -151,12 +149,11 @@ int uart_rx_char(pyb_uart_obj_t *self) {
 
 bool uart_tx_char(pyb_uart_obj_t *self, int c) {
     uint32_t timeout = 0;
-
     while (!MAP_UARTCharPutNonBlocking(self->reg, c)) {
-        if (timeout++ > (PYBUART_TX_MAX_TIMEOUT_MS / PYBUART_TX_WAIT_MS)) {
+        if (timeout++ > ((PYBUART_TX_MAX_TIMEOUT_MS * 1000) / PYBUART_TX_WAIT_US(self->baudrate))) {
             return false;
         }
-        HAL_Delay (PYBUART_TX_WAIT_MS);
+        UtilsDelay(UTILS_DELAY_US_TO_COUNT(PYBUART_TX_WAIT_US(self->baudrate)));
     }
     return true;
 }
@@ -179,30 +176,23 @@ void uart_tx_strn_cooked(pyb_uart_obj_t *self, const char *str, uint len) {
     }
 }
 
-mp_obj_t uart_callback_new (pyb_uart_obj_t *self, mp_obj_t handler, uint rxbuffer_size, mp_int_t priority) {
+mp_obj_t uart_callback_new (pyb_uart_obj_t *self, mp_obj_t handler, mp_int_t priority, byte trigger) {
     // disable the uart interrupts before updating anything
     uart_callback_disable (self);
 
     if (self->uart_id == PYB_UART_0) {
         MAP_IntPrioritySet(INT_UARTA0, priority);
         MAP_UARTIntRegister(self->reg, UART0IntHandler);
-    }
-    else {
+    } else {
         MAP_IntPrioritySet(INT_UARTA1, priority);
         MAP_UARTIntRegister(self->reg, UART1IntHandler);
     }
 
-    // check the rx buffer size
-    if (rxbuffer_size > 0) {
-        // allocate the read buffer
-        self->read_buf_len = rxbuffer_size;
-        self->read_buf = m_new(byte, rxbuffer_size);
-    }
-
     // create the callback
-    mp_obj_t _callback = mpcallback_new ((mp_obj_t)self, handler, &uart_cb_methods);
+    mp_obj_t _callback = mpcallback_new ((mp_obj_t)self, handler, &uart_cb_methods, true);
 
     // enable the interrupts now
+    self->irq_trigger = trigger;
     uart_callback_enable (self);
 
     return _callback;
@@ -213,21 +203,18 @@ mp_obj_t uart_callback_new (pyb_uart_obj_t *self, mp_obj_t handler, uint rxbuffe
  ******************************************************************************/
 // assumes init parameters have been set up correctly
 STATIC void uart_init (pyb_uart_obj_t *self) {
-    if (self->uart_id == PYB_UART_0) {
-        self->reg = UARTA0_BASE;
-        self->peripheral = PRCM_UARTA0;
-    }
-    else {
-        self->reg = UARTA1_BASE;
-        self->peripheral = PRCM_UARTA1;
-    }
-
     // Enable the peripheral clock
     MAP_PRCMPeripheralClkEnable(self->peripheral, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
 
     // Reset the uart
     MAP_PRCMPeripheralReset(self->peripheral);
 
+    // re-allocate the read buffer after resetting the uart (which automatically disables any irqs)
+    self->read_buf_head = 0;
+    self->read_buf_tail = 0;
+    self->read_buf = MP_OBJ_NULL; // free the read buffer before allocating again
+    self->read_buf = m_new(byte, PYBUART_RX_BUFFER_LEN);
+
     // Initialize the UART
     MAP_UARTConfigSetExpClk(self->reg, MAP_PRCMPeripheralClockGet(self->peripheral),
                             self->baudrate, self->config);
@@ -242,16 +229,17 @@ STATIC void uart_init (pyb_uart_obj_t *self) {
     UARTFlowControlSet(self->reg, self->flowcontrol);
 }
 
-// Waits at most timeout milliseconds for at least 1 char to become ready for
+// Waits at most timeout microseconds for at least 1 char to become ready for
 // reading (from buf or for direct reading).
 // Returns true if something available, false if not.
-STATIC bool uart_rx_wait (pyb_uart_obj_t *self, uint32_t timeout) {
+STATIC bool uart_rx_wait (pyb_uart_obj_t *self) {
+    int timeout = PYBUART_RX_TIMEOUT_US(self->baudrate);
     for ( ; ; ) {
         if (uart_rx_any(self)) {
-            return true; // have at least 1 char ready for reading
+            return true; // we have at least 1 char ready for reading
         }
         if (timeout > 0) {
-            HAL_Delay (1);
+            UtilsDelay(UTILS_DELAY_US_TO_COUNT(1));
             timeout--;
         }
         else {
@@ -263,6 +251,7 @@ STATIC bool uart_rx_wait (pyb_uart_obj_t *self, uint32_t timeout) {
 STATIC void UARTGenericIntHandler(uint32_t uart_id) {
     pyb_uart_obj_t *self;
     uint32_t status;
+    bool exec_callback = false;
 
     self = &pyb_uart_obj[uart_id];
     status = MAP_UARTIntStatus(self->reg, true);
@@ -275,8 +264,9 @@ STATIC void UARTGenericIntHandler(uint32_t uart_id) {
                 // raise an exception when interrupts are finished
                 mpexception_keyboard_nlr_jump();
             }
-            else if (self->read_buf_len != 0) {
-                uint16_t next_head = (self->read_buf_head + 1) % self->read_buf_len;
+            // there's always a read buffer available
+            else {
+                uint16_t next_head = (self->read_buf_head + 1) % PYBUART_RX_BUFFER_LEN;
                 if (next_head != self->read_buf_tail) {
                     // only store data if room in buf
                     self->read_buf[self->read_buf_head] = data;
@@ -284,9 +274,23 @@ STATIC void UARTGenericIntHandler(uint32_t uart_id) {
                 }
             }
         }
-        // call the user defined handler
-        mp_obj_t _callback = mpcallback_find(self);
-        mpcallback_handler(_callback);
+
+        if (self->irq_trigger & E_UART_TRIGGER_RX_ANY) {
+            exec_callback = true;
+        }
+
+        if (exec_callback && self->callback_enabled) {
+            // call the user defined handler
+            mp_obj_t _callback = mpcallback_find(self);
+            mpcallback_handler(_callback);
+        }
+    }
+}
+
+STATIC void uart_check_init(pyb_uart_obj_t *self) {
+    // not initialized
+    if (!self->baudrate) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
     }
 }
 
@@ -300,13 +304,17 @@ STATIC void UART1IntHandler(void) {
 
 STATIC void uart_callback_enable (mp_obj_t self_in) {
     pyb_uart_obj_t *self = self_in;
-    MAP_UARTIntClear(self->reg, UART_INT_RX | UART_INT_RT);
-    MAP_UARTIntEnable(self->reg, UART_INT_RX | UART_INT_RT);
+    // check for any of the rx interrupt types
+    if (self->irq_trigger & (E_UART_TRIGGER_RX_ANY | E_UART_TRIGGER_RX_HALF | E_UART_TRIGGER_RX_FULL)) {
+        MAP_UARTIntClear(self->reg, UART_INT_RX | UART_INT_RT);
+        MAP_UARTIntEnable(self->reg, UART_INT_RX | UART_INT_RT);
+    }
+    self->callback_enabled = true;
 }
 
 STATIC void uart_callback_disable (mp_obj_t self_in) {
     pyb_uart_obj_t *self = self_in;
-    MAP_UARTIntDisable(self->reg, UART_INT_RX | UART_INT_RT);
+    self->callback_enabled = false;
 }
 
 /******************************************************************************/
@@ -315,7 +323,7 @@ STATIC void uart_callback_disable (mp_obj_t self_in) {
 STATIC void pyb_uart_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
     pyb_uart_obj_t *self = self_in;
     if (self->baudrate > 0) {
-        mp_printf(print, "<UART%u, baudrate=%u, bits=", self->uart_id, self->baudrate);
+        mp_printf(print, "UART(%u, baudrate=%u, bits=", self->uart_id, self->baudrate);
         switch (self->config & UART_CONFIG_WLEN_MASK) {
         case UART_CONFIG_WLEN_5:
             mp_print_str(print, "5");
@@ -335,121 +343,138 @@ STATIC void pyb_uart_print(const mp_print_t *print, mp_obj_t self_in, mp_print_k
         if ((self->config & UART_CONFIG_PAR_MASK) == UART_CONFIG_PAR_NONE) {
             mp_print_str(print, ", parity=None");
         } else {
-            mp_printf(print, ", parity=%u", (self->config & UART_CONFIG_PAR_MASK) == UART_CONFIG_PAR_EVEN ? 0 : 1);
+            mp_printf(print, ", parity=UART.%q", (self->config & UART_CONFIG_PAR_MASK) == UART_CONFIG_PAR_EVEN ? MP_QSTR_EVEN : MP_QSTR_ODD);
         }
-        mp_printf(print, ", stop=%u, timeout=%u, timeout_char=%u, read_buf_len=%u>",
-              (self->config & UART_CONFIG_STOP_MASK) == UART_CONFIG_STOP_ONE ? 1 : 2,
-               self->timeout, self->timeout_char, self->read_buf_len);
+        mp_printf(print, ", stop=%u)", (self->config & UART_CONFIG_STOP_MASK) == UART_CONFIG_STOP_ONE ? 1 : 2);
     }
     else {
-        mp_printf(print, "<UART%u>", self->uart_id);
+        mp_printf(print, "UART(%u)", self->uart_id);
     }
 }
 
-/// \method init(baudrate, bits=8, parity=None, stop=1, *, timeout=1000, timeout_char=0)
-///
-/// Initialise the UART bus with the given parameters:
-///
-///   - `baudrate` is the clock rate.
-///   - `bits` is the number of bits per byte, 7, 8 or 9.
-///   - `parity` is the parity, `None`, 0 (even) or 1 (odd).
-///   - `stop` is the number of stop bits, 1 or 2.
-///   - `flowcontrol` is the flow control mode, `None`, `UART.FLOW_TX`, 
-///     `UART.FLOW_RX', 'UART.FLOW_TXRX`.
-///   - `timeout` is the timeout (in milliseconds) when waiting for the first character.
-///   - `timeout_char` is the timeout (in milliseconds) between characters.
-STATIC const mp_arg_t pyb_uart_init_args[] = {
-    { MP_QSTR_baudrate,     MP_ARG_REQUIRED | MP_ARG_INT,  },
-    { MP_QSTR_bits,         MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 8} },
-    { MP_QSTR_parity,       MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_obj = mp_const_none} },
-    { MP_QSTR_stop,         MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 1} },
-    { MP_QSTR_flow,         MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_int = UART_FLOWCONTROL_NONE} },
-    { MP_QSTR_timeout,      MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 1000} },
-    { MP_QSTR_timeout_char, MP_ARG_KW_ONLY  | MP_ARG_INT,  {.u_int = 1} },
-};
-
-STATIC mp_obj_t pyb_uart_init_helper(pyb_uart_obj_t *self, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
-    // parse args
-    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_uart_init_args)];
-    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(pyb_uart_init_args), pyb_uart_init_args, args);
-
-    // set timeouts
-    self->timeout = args[5].u_int;
-    self->timeout_char = args[6].u_int;
-
-    // no read buffer for the moment
-    self->read_buf_head = 0;
-    self->read_buf_tail = 0;
-    self->read_buf_len = 0;
-    self->read_buf = NULL;
-
+STATIC mp_obj_t pyb_uart_init_helper(pyb_uart_obj_t *self, const mp_arg_val_t *args) {
     // get the baudrate
-    self->baudrate = args[0].u_int;
+    if (args[0].u_int <= 0) {
+        goto error;
+    }
+    uint baudrate = args[0].u_int;
+    uint config;
+    switch (args[1].u_int) {
+    case 5:
+        config = UART_CONFIG_WLEN_5;
+        break;
+    case 6:
+        config = UART_CONFIG_WLEN_6;
+        break;
+    case 7:
+        config = UART_CONFIG_WLEN_7;
+        break;
+    case 8:
+        config = UART_CONFIG_WLEN_8;
+        break;
+    default:
+        goto error;
+        break;
+    }
+    // parity
+    if (args[2].u_obj == mp_const_none) {
+        config |= UART_CONFIG_PAR_NONE;
+    } else {
+        uint parity = mp_obj_get_int(args[2].u_obj);
+        if (parity != UART_CONFIG_PAR_ODD && parity != UART_CONFIG_PAR_EVEN) {
+            goto error;
+        }
+        config |= parity;
+    }
+    // stop bits
+    config |= (args[3].u_int == 1 ? UART_CONFIG_STOP_ONE : UART_CONFIG_STOP_TWO);
 
-    // set the UART configuration values
-    if (n_args > 1) {
-        switch (args[1].u_int) {
-        case 5:
-            self->config = UART_CONFIG_WLEN_5;
-            break;
-        case 6:
-            self->config = UART_CONFIG_WLEN_6;
-            break;
-        case 7:
-            self->config = UART_CONFIG_WLEN_7;
-            break;
-        case 8:
-            self->config = UART_CONFIG_WLEN_8;
-            break;
-        default:
-            nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
-            break;
-        }
-        // Parity
-        if (args[2].u_obj == mp_const_none) {
-            self->config |= UART_CONFIG_PAR_NONE;
+    // assign the pins
+    mp_obj_t pins_o = args[4].u_obj;
+    uint flowcontrol = UART_FLOWCONTROL_NONE;
+    if (pins_o != mp_const_none) {
+        mp_obj_t *pins;
+        mp_uint_t n_pins = 2;
+        if (pins_o == MP_OBJ_NULL) {
+            // use the default pins
+            pins = (mp_obj_t *)pyb_uart_def_pin[self->uart_id];
         } else {
-            self->config |= ((mp_obj_get_int(args[2].u_obj) & 1) ? UART_CONFIG_PAR_ODD : UART_CONFIG_PAR_EVEN);
+            mp_obj_get_array(pins_o, &n_pins, &pins);
+            if (n_pins != 2 && n_pins != 4) {
+                goto error;
+            }
+            if (n_pins == 4) {
+                if (pins[PIN_TYPE_UART_RTS] != mp_const_none && pins[PIN_TYPE_UART_RX] == mp_const_none) {
+                    goto error;  // RTS pin given in TX only mode
+                } else if (pins[PIN_TYPE_UART_CTS] != mp_const_none && pins[PIN_TYPE_UART_TX] == mp_const_none) {
+                    goto error;  // CTS pin given in RX only mode
+                } else {
+                    if (pins[PIN_TYPE_UART_RTS] != mp_const_none) {
+                        flowcontrol |= UART_FLOWCONTROL_RX;
+                    }
+                    if (pins[PIN_TYPE_UART_CTS] != mp_const_none) {
+                        flowcontrol |= UART_FLOWCONTROL_TX;
+                    }
+                }
+            }
         }
-        // Stop bits
-        self->config |= (args[3].u_int == 1 ? UART_CONFIG_STOP_ONE : UART_CONFIG_STOP_TWO);
-        // Flow control
-        self->flowcontrol = args[4].u_int;
-    }
-    else {
-        self->config = UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE;
-        self->flowcontrol = UART_FLOWCONTROL_NONE;
+        pin_assign_pins_af (pins, n_pins, PIN_TYPE_STD_PU, PIN_FN_UART, self->uart_id);
     }
 
+    self->baudrate = baudrate;
+    self->config = config;
+    self->flowcontrol = flowcontrol;
+
     // initialize and enable the uart
     uart_init (self);
     // register it with the sleep module
     pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)uart_init);
+    // enable the callback
+    uart_callback_new (self, mp_const_none, INT_PRIORITY_LVL_3, E_UART_TRIGGER_RX_ANY);
 
     return mp_const_none;
+
+error:
+    nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
 }
 
-/// \classmethod \constructor(bus, ...)
-///
-/// Construct a UART object on the given bus id.  `bus id` can be 0 or 1
-/// With no additional parameters, the UART object is created but not
-/// initialised (it has the settings from the last initialisation of
-/// the bus, if any).
-/// When only the baud rate is given the UART object is created and
-/// initialized with the default configuration of: 8 bit transfers,
-/// 1 stop bit, no parity and flow control disabled.
-/// See `init` for parameters of initialisation.
-/// If extra arguments are given, the bus is initialised with these arguments
-/// See `init` for parameters of initialisation.
-///
-STATIC mp_obj_t pyb_uart_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
-    // check arguments
-    mp_arg_check_num(n_args, n_kw, 1, MP_ARRAY_SIZE(pyb_uart_init_args), true);
+STATIC const mp_arg_t pyb_uart_init_args[] = {
+    { MP_QSTR_id,                             MP_ARG_OBJ,  {.u_obj = mp_const_none} },
+    { MP_QSTR_baudrate,                       MP_ARG_INT,  {.u_int = 9600} },
+    { MP_QSTR_bits,                           MP_ARG_INT,  {.u_int = 8} },
+    { MP_QSTR_parity,                         MP_ARG_OBJ,  {.u_obj = mp_const_none} },
+    { MP_QSTR_stop,                           MP_ARG_INT,  {.u_int = 1} },
+    { MP_QSTR_pins,         MP_ARG_KW_ONLY  | MP_ARG_OBJ,  {.u_obj = MP_OBJ_NULL} },
+};
+STATIC mp_obj_t pyb_uart_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // parse args
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_uart_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_uart_init_args, args);
 
     // work out the uart id
-    pyb_uart_id_t uart_id = mp_obj_get_int(args[0]);
+    uint uart_id;
+    if (args[0].u_obj == mp_const_none) {
+        if (args[5].u_obj != MP_OBJ_NULL) {
+            mp_obj_t *pins;
+            mp_uint_t n_pins = 2;
+            mp_obj_get_array(args[5].u_obj, &n_pins, &pins);
+            // check the Tx pin (or the Rx if Tx is None)
+            if (pins[0] == mp_const_none) {
+                uart_id = pin_find_peripheral_unit(pins[1], PIN_FN_UART, PIN_TYPE_UART_RX);
+            } else {
+                uart_id = pin_find_peripheral_unit(pins[0], PIN_FN_UART, PIN_TYPE_UART_TX);
+            }
+        } else {
+            // default id
+            uart_id = 0;
+        }
+    } else {
+        uart_id = mp_obj_get_int(args[0].u_obj);
+    }
 
-    if (uart_id < PYB_UART_0 || uart_id > PYB_UART_1) {
+    if (uart_id > PYB_UART_1) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
     }
 
@@ -457,30 +482,30 @@ STATIC mp_obj_t pyb_uart_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t
     pyb_uart_obj_t *self = &pyb_uart_obj[uart_id];
     self->base.type = &pyb_uart_type;
     self->uart_id = uart_id;
-    if (n_args > 1 || n_kw > 0) {
-        // start the peripheral
-        mp_map_t kw_args;
-        mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
-        pyb_uart_init_helper(self, n_args - 1, args + 1, &kw_args);
-    }
+
+    // start the peripheral
+    pyb_uart_init_helper(self, &args[1]);
 
     return self;
 }
 
-STATIC mp_obj_t pyb_uart_init(mp_uint_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
-    return pyb_uart_init_helper(args[0], n_args - 1, args + 1, kw_args);
+STATIC mp_obj_t pyb_uart_init(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    // parse args
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_uart_init_args) - 1];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &pyb_uart_init_args[1], args);
+    return pyb_uart_init_helper(pos_args[0], args);
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_uart_init_obj, 1, pyb_uart_init);
 
-/// \method deinit()
-/// Turn off the UART bus.
-mp_obj_t pyb_uart_deinit(mp_obj_t self_in) {
+STATIC mp_obj_t pyb_uart_deinit(mp_obj_t self_in) {
     pyb_uart_obj_t *self = self_in;
 
     // unregister it with the sleep module
     pybsleep_remove (self);
     // invalidate the baudrate
     self->baudrate = 0;
+    // free the read buffer
+    m_del(byte, self->read_buf, PYBUART_RX_BUFFER_LEN);
     MAP_UARTIntDisable(self->reg, UART_INT_RX | UART_INT_RT);
     MAP_UARTDisable(self->reg);
     MAP_PRCMPeripheralClkDisable(self->peripheral, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
@@ -488,82 +513,58 @@ mp_obj_t pyb_uart_deinit(mp_obj_t self_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_deinit_obj, pyb_uart_deinit);
 
-/// \method any()
-/// Return `True` if any characters waiting, else `False`.
 STATIC mp_obj_t pyb_uart_any(mp_obj_t self_in) {
     pyb_uart_obj_t *self = self_in;
-    if (uart_rx_any(self)) {
-        return mp_const_true;
-    } else {
-        return mp_const_false;
-    }
+    uart_check_init(self);
+    return mp_obj_new_int(uart_rx_any(self));
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_any_obj, pyb_uart_any);
 
-/// \method callback(handler, value, priority)
-/// Creates a callback object associated with the uart
-/// min num of arguments is 1 (value). The value is the size of the rx buffer
+STATIC mp_obj_t pyb_uart_sendbreak(mp_obj_t self_in) {
+    pyb_uart_obj_t *self = self_in;
+    uart_check_init(self);
+    // send a break signal for at least 2 complete frames
+    MAP_UARTBreakCtl(self->reg, true);
+    UtilsDelay(UTILS_DELAY_US_TO_COUNT(PYBUART_2_FRAMES_TIME_US(self->baudrate)));
+    MAP_UARTBreakCtl(self->reg, false);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_sendbreak_obj, pyb_uart_sendbreak);
+
 STATIC mp_obj_t pyb_uart_callback (mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     mp_arg_val_t args[mpcallback_INIT_NUM_ARGS];
     mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, mpcallback_INIT_NUM_ARGS, mpcallback_init_args, args);
 
     // check if any parameters were passed
     pyb_uart_obj_t *self = pos_args[0];
+    uart_check_init(self);
     mp_obj_t _callback = mpcallback_find((mp_obj_t)self);
-    if (kw_args->used > 0 || !_callback) {
+    if (kw_args->used > 0) {
 
         // convert the priority to the correct value
         uint priority = mpcallback_translate_priority (args[2].u_int);
 
         // check the power mode
-        if (PYB_PWR_MODE_ACTIVE != args[3].u_int) {
+        if (PYB_PWR_MODE_ACTIVE != args[4].u_int) {
             nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
         }
 
         // register a new callback
-        return uart_callback_new (self, args[1].u_obj, args[3].u_int, priority);
+        // FIXME triggers!!
+        return uart_callback_new (self, args[1].u_obj, mp_obj_get_int(args[3].u_obj), priority);
+    } else if (!_callback) {
+        _callback = mpcallback_new (self, mp_const_none, &uart_cb_methods, false);
     }
     return _callback;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_KW(pyb_uart_callback_obj, 1, pyb_uart_callback);
 
-/// \method writechar(char)
-/// Write a single character on the bus.  `char` is an integer to write.
-/// Return value: `None`.
-STATIC mp_obj_t pyb_uart_writechar(mp_obj_t self_in, mp_obj_t char_in) {
-    pyb_uart_obj_t *self = self_in;
-
-    // get the character to write
-    uint8_t data = mp_obj_get_int(char_in);
-
-    // send the character
-    if (!uart_tx_char(self, data)) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ETIMEDOUT)));
-    }
-
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_uart_writechar_obj, pyb_uart_writechar);
-
-/// \method readchar()
-/// Receive a single character on the bus.
-/// Return value: The character read, as an integer.  Returns -1 on timeout.
-STATIC mp_obj_t pyb_uart_readchar(mp_obj_t self_in) {
-    pyb_uart_obj_t *self = self_in;
-    if (uart_rx_wait(self, self->timeout)) {
-        return mp_obj_new_int(uart_rx_char(self));
-    } else {
-        // return -1 on timeout
-        return MP_OBJ_NEW_SMALL_INT(-1);
-    }
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_uart_readchar_obj, pyb_uart_readchar);
-
 STATIC const mp_map_elem_t pyb_uart_locals_dict_table[] = {
     // instance methods
     { MP_OBJ_NEW_QSTR(MP_QSTR_init),        (mp_obj_t)&pyb_uart_init_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_deinit),      (mp_obj_t)&pyb_uart_deinit_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_any),         (mp_obj_t)&pyb_uart_any_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sendbreak),   (mp_obj_t)&pyb_uart_sendbreak_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_callback),    (mp_obj_t)&pyb_uart_callback_obj },
 
     /// \method read([nbytes])
@@ -577,14 +578,10 @@ STATIC const mp_map_elem_t pyb_uart_locals_dict_table[] = {
     /// \method write(buf)
     { MP_OBJ_NEW_QSTR(MP_QSTR_write),       (mp_obj_t)&mp_stream_write_obj },
 
-    { MP_OBJ_NEW_QSTR(MP_QSTR_writechar),   (mp_obj_t)&pyb_uart_writechar_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_readchar),    (mp_obj_t)&pyb_uart_readchar_obj },
-
     // class constants
-    { MP_OBJ_NEW_QSTR(MP_QSTR_FLOW_NONE),   MP_OBJ_NEW_SMALL_INT(UART_FLOWCONTROL_NONE) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_FLOW_TX),     MP_OBJ_NEW_SMALL_INT(UART_FLOWCONTROL_TX) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_FLOW_RX),     MP_OBJ_NEW_SMALL_INT(UART_FLOWCONTROL_RX) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_FLOW_TXRX),   MP_OBJ_NEW_SMALL_INT(UART_FLOWCONTROL_TX | UART_FLOWCONTROL_RX) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_EVEN),        MP_OBJ_NEW_SMALL_INT(UART_CONFIG_PAR_EVEN) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ODD),         MP_OBJ_NEW_SMALL_INT(UART_CONFIG_PAR_ODD) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_RX_ANY),      MP_OBJ_NEW_SMALL_INT(E_UART_TRIGGER_RX_ANY) },
 };
 
 STATIC MP_DEFINE_CONST_DICT(pyb_uart_locals_dict, pyb_uart_locals_dict_table);
@@ -592,6 +589,7 @@ STATIC MP_DEFINE_CONST_DICT(pyb_uart_locals_dict, pyb_uart_locals_dict_table);
 STATIC mp_uint_t pyb_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, int *errcode) {
     pyb_uart_obj_t *self = self_in;
     byte *buf = buf_in;
+    uart_check_init(self);
 
     // make sure we want at least 1 char
     if (size == 0) {
@@ -599,7 +597,7 @@ STATIC mp_uint_t pyb_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, i
     }
 
     // wait for first char to become available
-    if (!uart_rx_wait(self, self->timeout)) {
+    if (!uart_rx_wait(self)) {
         // we can either return 0 to indicate EOF (then read() method returns b'')
         // or return EAGAIN error to indicate non-blocking (then read() method returns None)
         return 0;
@@ -609,7 +607,7 @@ STATIC mp_uint_t pyb_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, i
     byte *orig_buf = buf;
     for ( ; ; ) {
         *buf++ = uart_rx_char(self);
-        if (--size == 0 || !uart_rx_wait(self, self->timeout_char)) {
+        if (--size == 0 || !uart_rx_wait(self)) {
             // return number of bytes read
             return buf - orig_buf;
         }
@@ -619,10 +617,11 @@ STATIC mp_uint_t pyb_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, i
 STATIC mp_uint_t pyb_uart_write(mp_obj_t self_in, const void *buf_in, mp_uint_t size, int *errcode) {
     pyb_uart_obj_t *self = self_in;
     const char *buf = buf_in;
+    uart_check_init(self);
 
     // write the data
     if (!uart_tx_strn(self, buf, size)) {
-        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ETIMEDOUT)));
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed));
     }
     return size;
 }
@@ -630,6 +629,8 @@ STATIC mp_uint_t pyb_uart_write(mp_obj_t self_in, const void *buf_in, mp_uint_t
 STATIC mp_uint_t pyb_uart_ioctl(mp_obj_t self_in, mp_uint_t request, mp_uint_t arg, int *errcode) {
     pyb_uart_obj_t *self = self_in;
     mp_uint_t ret;
+    uart_check_init(self);
+
     if (request == MP_IOCTL_POLL) {
         mp_uint_t flags = arg;
         ret = 0;

cc3200/mods/pybuart.h

@@ -38,12 +38,11 @@ typedef struct _pyb_uart_obj_t pyb_uart_obj_t;
 extern const mp_obj_type_t pyb_uart_type;
 
 void uart_init0(void);
-mp_obj_t pyb_uart_deinit(mp_obj_t self_in);
-bool uart_rx_any(pyb_uart_obj_t *uart_obj);
+uint32_t uart_rx_any(pyb_uart_obj_t *uart_obj);
 int uart_rx_char(pyb_uart_obj_t *uart_obj);
 bool uart_tx_char(pyb_uart_obj_t *self, int c);
 bool uart_tx_strn(pyb_uart_obj_t *uart_obj, const char *str, uint len);
 void uart_tx_strn_cooked(pyb_uart_obj_t *uart_obj, const char *str, uint len);
-mp_obj_t uart_callback_new (pyb_uart_obj_t *self, mp_obj_t handler, uint rxbuffer_size, mp_int_t priority);
+mp_obj_t uart_callback_new (pyb_uart_obj_t *self, mp_obj_t handler, mp_int_t priority, byte trigger);
 
 #endif  // PYBUART_H_

cc3200/mods/pybwdt.c

@@ -53,15 +53,17 @@
  DECLARE TYPES
  ******************************************************************************/
 typedef struct {
+    mp_obj_base_t base;
     bool    servers;
+    bool    servers_sleeping;
     bool    simplelink;
     bool    running;
-}pybwdt_data_t;
+} pyb_wdt_obj_t;
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-static  pybwdt_data_t   pybwdt_data;
+STATIC pyb_wdt_obj_t pyb_wdt_obj = {.servers = false, .servers_sleeping = false, .simplelink = false, .running = false};
 
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
@@ -69,38 +71,42 @@ static  pybwdt_data_t   pybwdt_data;
 // must be called in main.c just after initializing the hal
 __attribute__ ((section (".boot")))
 void pybwdt_init0 (void) {
-    pybwdt_data.running = false;
-}
-
-void pybwdt_kick (void) {
-    // check that the servers and simplelink are running fine
-    if (pybwdt_data.servers && pybwdt_data.simplelink && pybwdt_data.running) {
-        pybwdt_data.servers = false;
-        pybwdt_data.simplelink = false;
-        MAP_WatchdogIntClear(WDT_BASE);
-    }
 }
 
 void pybwdt_srv_alive (void) {
-    pybwdt_data.servers = true;
+    pyb_wdt_obj.servers = true;
+}
+
+void pybwdt_srv_sleeping (bool state) {
+    pyb_wdt_obj.servers_sleeping = state;
 }
 
 void pybwdt_sl_alive (void) {
-    pybwdt_data.simplelink = true;
+    pyb_wdt_obj.simplelink = true;
 }
 
 /******************************************************************************/
 // Micro Python bindings
 
-/// \function wdt_enable('msec')
-/// Enabled the watchdog timer with msec timeout value
-STATIC mp_obj_t pyb_enable_wdt(mp_obj_t self, mp_obj_t msec_in) {
-    mp_int_t msec = mp_obj_get_int(msec_in);
+STATIC const mp_arg_t pyb_wdt_init_args[] = {
+    { MP_QSTR_id,                             MP_ARG_OBJ,  {.u_obj = mp_const_none} },
+    { MP_QSTR_timeout,                        MP_ARG_INT,  {.u_int = 5000} },   // 5 s
+};
+STATIC mp_obj_t pyb_wdt_make_new (mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *all_args) {
+    // check the arguments
+    mp_map_t kw_args;
+    mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
+    mp_arg_val_t args[MP_ARRAY_SIZE(pyb_wdt_init_args)];
+    mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), pyb_wdt_init_args, args);
 
-    if (msec < PYBWDT_MIN_TIMEOUT_MS) {
+    if (args[0].u_obj != mp_const_none && mp_obj_get_int(args[0].u_obj) > 0) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable));
+    }
+    uint timeout_ms = args[1].u_int;
+    if (timeout_ms < PYBWDT_MIN_TIMEOUT_MS) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
     }
-    if (pybwdt_data.running) {
+    if (pyb_wdt_obj.running) {
         nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible));
     }
 
@@ -110,40 +116,44 @@ STATIC mp_obj_t pyb_enable_wdt(mp_obj_t self, mp_obj_t msec_in) {
     // Unlock to be able to configure the registers
     MAP_WatchdogUnlock(WDT_BASE);
 
+#ifdef DEBUG
     // make the WDT stall when the debugger stops on a breakpoint
     MAP_WatchdogStallEnable (WDT_BASE);
+#endif
 
     // set the watchdog timer reload value
     // the WDT trigger a system reset after the second timeout
-    // so, divide by the 2 timeout value received
-    MAP_WatchdogReloadSet(WDT_BASE, PYBWDT_MILLISECONDS_TO_TICKS(msec / 2));
+    // so, divide by 2 the timeout value received
+    MAP_WatchdogReloadSet(WDT_BASE, PYBWDT_MILLISECONDS_TO_TICKS(timeout_ms / 2));
 
-    // start the timer. Once wdt is started, it cannot be disabled.
+    // start the timer. Once it's started, it cannot be disabled.
     MAP_WatchdogEnable(WDT_BASE);
-    pybwdt_data.running = true;
+    pyb_wdt_obj.base.type = &pyb_wdt_type;
+    pyb_wdt_obj.running = true;
 
+    return (mp_obj_t)&pyb_wdt_obj;
+}
+
+STATIC mp_obj_t pyb_wdt_feed(mp_obj_t self_in) {
+    pyb_wdt_obj_t *self = self_in;
+    if ((self->servers || self->servers_sleeping) && self->simplelink && self->running) {
+        self->servers = false;
+        self->simplelink = false;
+        MAP_WatchdogIntClear(WDT_BASE);
+    }
     return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(pyb_enable_wdt_obj, pyb_enable_wdt);
-
-/// \function wdt_kick()
-/// Kicks the watchdog timer
-STATIC mp_obj_t pyb_kick_wdt(mp_obj_t self) {
-    pybwdt_kick ();
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_kick_wdt_obj, pyb_kick_wdt);
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_wdt_feed_obj, pyb_wdt_feed);
 
 STATIC const mp_map_elem_t pybwdt_locals_dict_table[] = {
-    { MP_OBJ_NEW_QSTR(MP_QSTR_enable), (mp_obj_t)&pyb_enable_wdt_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_kick),   (mp_obj_t)&pyb_kick_wdt_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_feed),   (mp_obj_t)&pyb_wdt_feed_obj },
 };
 STATIC MP_DEFINE_CONST_DICT(pybwdt_locals_dict, pybwdt_locals_dict_table);
 
-static const mp_obj_type_t pybwdt_type = {
+const mp_obj_type_t pyb_wdt_type = {
     { &mp_type_type },
     .name = MP_QSTR_WDT,
+    .make_new = pyb_wdt_make_new,
     .locals_dict = (mp_obj_t)&pybwdt_locals_dict,
 };
 
-const mp_obj_base_t pyb_wdt_obj = {&pybwdt_type};

cc3200/mods/pybwdt.h

@@ -29,11 +29,11 @@
 
 #include "py/obj.h"
 
-extern const mp_obj_base_t pyb_wdt_obj;
+extern const mp_obj_type_t pyb_wdt_type;
 
 void pybwdt_init0 (void);
-void pybwdt_kick (void);
 void pybwdt_srv_alive (void);
+void pybwdt_srv_sleeping (bool state);
 void pybwdt_sl_alive (void);
 
 #endif /* PYBWDT_H_ */

cc3200/mpconfigport.h

@@ -48,7 +48,12 @@
 #define MICROPY_FLOAT_IMPL                          (MICROPY_FLOAT_IMPL_NONE)
 #define MICROPY_OPT_COMPUTED_GOTO                   (0)
 #define MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE    (0)
+#ifndef DEBUG // we need ram on the launchxl while debugging
+#define MICROPY_CPYTHON_COMPAT                      (1)
+#else
 #define MICROPY_CPYTHON_COMPAT                      (0)
+#endif
+#define MICROPY_QSTR_BYTES_IN_HASH                  (1)
 
 /* Enable FatFS LFNs
     0: Disable LFN feature.
@@ -61,22 +66,33 @@
 #define MICROPY_STREAMS_NON_BLOCK                   (1)
 #define MICROPY_MODULE_WEAK_LINKS                   (1)
 #define MICROPY_CAN_OVERRIDE_BUILTINS               (1)
+#define MICROPY_PY_BUILTINS_TIMEOUTERROR            (1)
+#ifndef DEBUG
 #define MICROPY_PY_BUILTINS_STR_UNICODE             (1)
-#define MICROPY_PY_BUILTINS_STR_SPLITLINES          (0)
+#define MICROPY_PY_BUILTINS_STR_SPLITLINES          (1)
 #define MICROPY_PY_BUILTINS_MEMORYVIEW              (1)
 #define MICROPY_PY_BUILTINS_FROZENSET               (1)
 #define MICROPY_PY_BUILTINS_EXECFILE                (1)
-#define MICROPY_PY_MICROPYTHON_MEM_INFO             (0)
+#define MICROPY_PY_ARRAY_SLICE_ASSIGN               (1)
+#define MICROPY_PY_COLLECTIONS_ORDEREDDICT          (1)
+#else
+#define MICROPY_PY_BUILTINS_STR_UNICODE             (0)
+#define MICROPY_PY_BUILTINS_STR_SPLITLINES          (0)
+#define MICROPY_PY_BUILTINS_MEMORYVIEW              (0)
+#define MICROPY_PY_BUILTINS_FROZENSET               (0)
+#define MICROPY_PY_BUILTINS_EXECFILE                (0)
 #define MICROPY_PY_ARRAY_SLICE_ASSIGN               (0)
 #define MICROPY_PY_COLLECTIONS_ORDEREDDICT          (0)
-#define MICROPY_PY_SYS_MAXSIZE                      (0)
+#endif
+#define MICROPY_PY_MICROPYTHON_MEM_INFO             (0)
+#define MICROPY_PY_SYS_MAXSIZE                      (1)
 #define MICROPY_PY_SYS_EXIT                         (1)
 #define MICROPY_PY_SYS_STDFILES                     (1)
 #define MICROPY_PY_CMATH                            (0)
 #define MICROPY_PY_IO                               (1)
 #define MICROPY_PY_IO_FILEIO                        (1)
-#define MICROPY_PY_UBINASCII                        (1)
-#define MICROPY_PY_UCTYPES                          (1)
+#define MICROPY_PY_UBINASCII                        (0)
+#define MICROPY_PY_UCTYPES                          (0)
 #define MICROPY_PY_UZLIB                            (0)
 #define MICROPY_PY_UJSON                            (1)
 #define MICROPY_PY_URE                              (1)
@@ -97,7 +113,6 @@ extern const struct _mp_obj_fun_builtin_t mp_builtin_open_obj;
 
 // extra built in modules to add to the list of known ones
 extern const struct _mp_obj_module_t pyb_module;
-extern const struct _mp_obj_module_t mp_module_ubinascii;
 extern const struct _mp_obj_module_t mp_module_ure;
 extern const struct _mp_obj_module_t mp_module_ujson;
 extern const struct _mp_obj_module_t mp_module_uheapq;
@@ -106,17 +121,23 @@ extern const struct _mp_obj_module_t mp_module_utime;
 extern const struct _mp_obj_module_t mp_module_uselect;
 extern const struct _mp_obj_module_t mp_module_usocket;
 extern const struct _mp_obj_module_t mp_module_network;
+extern const struct _mp_obj_module_t mp_module_uhashlib;
+extern const struct _mp_obj_module_t mp_module_ubinascii;
+extern const struct _mp_obj_module_t mp_module_ussl;
 
 #define MICROPY_PORT_BUILTIN_MODULES \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_pyb),     (mp_obj_t)&pyb_module },          \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_uos),     (mp_obj_t)&mp_module_uos },       \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_utime),   (mp_obj_t)&mp_module_utime },     \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_uselect), (mp_obj_t)&mp_module_uselect },   \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_usocket), (mp_obj_t)&mp_module_usocket },   \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_network), (mp_obj_t)&mp_module_network },   \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_pyb),         (mp_obj_t)&pyb_module },          \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_uos),         (mp_obj_t)&mp_module_uos },       \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_utime),       (mp_obj_t)&mp_module_utime },     \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_uselect),     (mp_obj_t)&mp_module_uselect },   \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_usocket),     (mp_obj_t)&mp_module_usocket },   \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_network),     (mp_obj_t)&mp_module_network },   \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_uhashlib),    (mp_obj_t)&mp_module_uhashlib },  \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ubinascii),   (mp_obj_t)&mp_module_ubinascii }, \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ussl),        (mp_obj_t)&mp_module_ussl },      \
 
 #define MICROPY_PORT_BUILTIN_MODULE_WEAK_LINKS \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_binascii),    (mp_obj_t)&mp_module_ubinascii }, \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_struct),      (mp_obj_t)&mp_module_ustruct },   \
     { MP_OBJ_NEW_QSTR(MP_QSTR_re),          (mp_obj_t)&mp_module_ure },       \
     { MP_OBJ_NEW_QSTR(MP_QSTR_json),        (mp_obj_t)&mp_module_ujson },     \
     { MP_OBJ_NEW_QSTR(MP_QSTR_heapq),       (mp_obj_t)&mp_module_uheapq },    \
@@ -124,7 +145,9 @@ extern const struct _mp_obj_module_t mp_module_network;
     { MP_OBJ_NEW_QSTR(MP_QSTR_time),        (mp_obj_t)&mp_module_utime },     \
     { MP_OBJ_NEW_QSTR(MP_QSTR_select),      (mp_obj_t)&mp_module_uselect },   \
     { MP_OBJ_NEW_QSTR(MP_QSTR_socket),      (mp_obj_t)&mp_module_usocket },   \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_struct),      (mp_obj_t)&mp_module_ustruct },   \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_hashlib),     (mp_obj_t)&mp_module_uhashlib },  \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_binascii),    (mp_obj_t)&mp_module_ubinascii }, \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ssl),         (mp_obj_t)&mp_module_ussl },      \
 
 // extra constants
 #define MICROPY_PORT_CONSTANTS \
@@ -136,9 +159,11 @@ extern const struct _mp_obj_module_t mp_module_network;
     const char *readline_hist[8];                                         \
     mp_obj_t mp_const_user_interrupt;                                     \
     mp_obj_t pyb_config_main;                                             \
-    mp_obj_list_t mod_network_nic_list;                                   \
     mp_obj_list_t pybsleep_obj_list;                                      \
     mp_obj_list_t mpcallback_obj_list;                                    \
+    mp_obj_list_t pyb_timer_channel_obj_list;                             \
+    mp_obj_list_t mount_obj_list;                                         \
+    struct _pyb_uart_obj_t *pyb_uart_objs[2];                             \
 
 
 // type definitions for the specific machine
@@ -182,6 +207,7 @@ void mp_hal_stdout_tx_strn_cooked(const char *str, uint32_t len);
 #define MICROPY_HAL_H                               "cc3200_hal.h"
 #define MICROPY_PORT_HAS_TELNET                     (1)
 #define MICROPY_PORT_HAS_FTP                        (1)
+#define MICROPY_PORT_WLAN_URN                       (0)
 #define MICROPY_PY_SYS_PLATFORM                     "WiPy"
 
 #define MICROPY_PORT_WLAN_AP_SSID                   "wipy-wlan"

cc3200/mptask.c

@@ -50,6 +50,7 @@
 #include "mperror.h"
 #include "simplelink.h"
 #include "modnetwork.h"
+#include "modusocket.h"
 #include "modwlan.h"
 #include "serverstask.h"
 #include "telnet.h"
@@ -60,10 +61,13 @@
 #include "mpexception.h"
 #include "random.h"
 #include "pybi2c.h"
-#include "pybsd.h"
 #include "pins.h"
 #include "pybsleep.h"
+#include "pybtimer.h"
 #include "mpcallback.h"
+#include "cryptohash.h"
+#include "updater.h"
+#include "moduos.h"
 
 /******************************************************************************
  DECLARE PRIVATE CONSTANTS
@@ -101,11 +105,14 @@ void TASK_Micropython (void *pvParameters) {
     // initialize the garbage collector with the top of our stack
     uint32_t sp = gc_helper_get_sp();
     gc_collect_init (sp);
-    bool safeboot = false;
-    FRESULT res;
 
+    bool safeboot = false;
     mptask_pre_init();
 
+#ifndef DEBUG
+    safeboot = PRCMGetSpecialBit(PRCM_SAFE_BOOT_BIT);
+#endif
+
 soft_reset:
 
     // GC init
@@ -121,31 +128,22 @@ soft_reset:
     mpexception_init0();
     mpcallback_init0();
     pybsleep_init0();
+    pin_init0();
     mperror_init0();
     uart_init0();
-    pin_init0();
+    timer_init0();
     readline_init0();
     mod_network_init0();
-#if MICROPY_HW_ENABLE_RNG
+    moduos_init0();
     rng_init0();
-#endif
-
-    // we are alive, so let the world know it
-    mperror_enable_heartbeat();
 
 #ifdef LAUNCHXL
-    // configure the stdio uart pins with the correct alternate functions
-    // param 3 ("mode") is DON'T CARE" for AFs others than GPIO
-    pin_config ((pin_obj_t *)&pin_GPIO1, PIN_MODE_3, 0, PIN_TYPE_STD_PU, PIN_STRENGTH_2MA);
-    pin_config ((pin_obj_t *)&pin_GPIO2, PIN_MODE_3, 0, PIN_TYPE_STD_PU, PIN_STRENGTH_2MA);
-    // instantiate the stdio uart
+    // instantiate the stdio uart on the default pins
     mp_obj_t args[2] = {
             mp_obj_new_int(MICROPY_STDIO_UART),
             mp_obj_new_int(MICROPY_STDIO_UART_BAUD),
     };
     pyb_stdio_uart = pyb_uart_type.make_new((mp_obj_t)&pyb_uart_type, MP_ARRAY_SIZE(args), 0, args);
-    // create a callback for the uart, in order to enable the rx interrupts
-    uart_callback_new (pyb_stdio_uart, mp_const_none, MICROPY_STDIO_UART_RX_BUF_SIZE, INT_PRIORITY_LVL_3);
 #else
     pyb_stdio_uart = MP_OBJ_NULL;
 #endif
@@ -160,9 +158,6 @@ soft_reset:
         else {
             // only if not comming out of hibernate or a soft reset
             mptask_enter_ap_mode();
-        #ifndef DEBUG
-            safeboot = PRCMIsSafeBootRequested();
-        #endif
         }
 
         // enable telnet and ftp
@@ -180,18 +175,14 @@ soft_reset:
     MP_STATE_PORT(pyb_config_main) = MP_OBJ_NULL;
 
     if (!safeboot) {
-        // run boot.py, if it exists
-        const char *boot_py = "boot.py";
-        res = f_stat(boot_py, NULL);
-        if (res == FR_OK) {
-            int ret = pyexec_file(boot_py);
-            if (ret & PYEXEC_FORCED_EXIT) {
-                goto soft_reset_exit;
-            }
-            if (!ret) {
-                // flash the system led
-                mperror_signal_error();
-            }
+        // run boot.py
+        int ret = pyexec_file("boot.py");
+        if (ret & PYEXEC_FORCED_EXIT) {
+            goto soft_reset_exit;
+        }
+        if (!ret) {
+            // flash the system led
+            mperror_signal_error();
         }
     }
 
@@ -210,16 +201,13 @@ soft_reset:
             } else {
                 main_py = mp_obj_str_get_str(MP_STATE_PORT(pyb_config_main));
             }
-            res = f_stat(main_py, NULL);
-            if (res == FR_OK) {
-                int ret = pyexec_file(main_py);
-                if (ret & PYEXEC_FORCED_EXIT) {
-                    goto soft_reset_exit;
-                }
-                if (!ret) {
-                    // flash the system led
-                    mperror_signal_error();
-                }
+            int ret = pyexec_file(main_py);
+            if (ret & PYEXEC_FORCED_EXIT) {
+                goto soft_reset_exit;
+            }
+            if (!ret) {
+                // flash the system led
+                mperror_signal_error();
             }
         }
     }
@@ -242,14 +230,20 @@ soft_reset_exit:
 
     // soft reset
     pybsleep_signal_soft_reset();
-
     mp_printf(&mp_plat_print, "PYB: soft reboot\n");
 
+    // disable all callbacks to avoid undefined behaviour
+    // when coming out of a soft reset
+    mpcallback_disable_all();
+
+    // flush the serial flash buffer
     sflash_disk_flush();
 
-#if MICROPY_HW_HAS_SDCARD
-    pybsd_deinit();
-#endif
+    // clean-up the user socket space
+    modusocket_close_all_user_sockets();
+
+    // wait for pending transactions to complete
+    HAL_Delay(20);
 
     goto soft_reset;
 }
@@ -259,9 +253,8 @@ soft_reset_exit:
  ******************************************************************************/
 __attribute__ ((section (".boot")))
 STATIC void mptask_pre_init (void) {
-#if MICROPY_HW_ENABLE_RTC
-    pybrtc_init();
-#endif
+    // this one only makes sense after a poweron reset
+    pyb_rtc_pre_init();
 
     // Create the simple link spawn task
     ASSERT (OSI_OK == VStartSimpleLinkSpawnTask(SIMPLELINK_SPAWN_TASK_PRIORITY));
@@ -272,12 +265,16 @@ STATIC void mptask_pre_init (void) {
     // this one allocates memory for the nvic vault
     pybsleep_pre_init();
 
-    // this one allocates mameory for the WLAN semaphore
+    // this one allocates memory for the WLAN semaphore
     wlan_pre_init();
 
-#if MICROPY_HW_HAS_SDCARD
-    pybsd_init0();
-#endif
+    // this one allocates memory for the updater semaphore
+    updater_pre_init();
+
+    // this one allocates memory for the socket semaphore
+    modusocket_pre_init();
+
+    CRYPTOHASH_Init();
 
 #ifdef DEBUG
     ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
@@ -299,7 +296,6 @@ STATIC void mptask_init_sflash_filesystem (void) {
 
     // Initialise the local flash filesystem.
     // Create it if needed, and mount in on /flash.
-    // try to mount the flash
     FRESULT res = f_mount(sflash_fatfs, "/flash", 1);
     if (res == FR_NO_FILESYSTEM) {
         // no filesystem, so create a fresh one
@@ -325,7 +321,20 @@ STATIC void mptask_init_sflash_filesystem (void) {
     // It is set to the internal flash filesystem by default.
     f_chdrive("/flash");
 
-    // Make sure we have a /flash/boot.py.  Create it if needed.
+    // create /flash/sys, /flash/lib and /flash/cert if they don't exist
+    if (FR_OK != f_chdir ("/flash/sys")) {
+        f_mkdir("/flash/sys");
+    }
+    if (FR_OK != f_chdir ("/flash/lib")) {
+        f_mkdir("/flash/lib");
+    }
+    if (FR_OK != f_chdir ("/flash/cert")) {
+        f_mkdir("/flash/cert");
+    }
+
+    f_chdir ("/flash");
+
+    // make sure we have a /flash/boot.py.  Create it if needed.
     res = f_stat("/flash/boot.py", &fno);
     if (res == FR_OK) {
         if (fno.fattrib & AM_DIR) {
@@ -347,9 +356,12 @@ STATIC void mptask_init_sflash_filesystem (void) {
 }
 
 STATIC void mptask_enter_ap_mode (void) {
-    // enable simplelink in low power mode
+    // append the mac only if it's not the first boot
+    bool append_mac = !PRCMGetSpecialBit(PRCM_FIRST_BOOT_BIT);
+
+    // enable simplelink in ap mode (use the MAC address to make the ssid unique)
     wlan_sl_enable (ROLE_AP, MICROPY_PORT_WLAN_AP_SSID, strlen(MICROPY_PORT_WLAN_AP_SSID), MICROPY_PORT_WLAN_AP_SECURITY,
-                    MICROPY_PORT_WLAN_AP_KEY, strlen(MICROPY_PORT_WLAN_AP_KEY), MICROPY_PORT_WLAN_AP_CHANNEL);
+                    MICROPY_PORT_WLAN_AP_KEY, strlen(MICROPY_PORT_WLAN_AP_KEY), MICROPY_PORT_WLAN_AP_CHANNEL, append_mac);
 }
 
 STATIC void mptask_create_main_py (void) {

cc3200/qstrdefsport.h

@@ -35,49 +35,30 @@ Q(main)
 Q(sync)
 Q(gc)
 Q(rng)
-Q(delay)
-Q(time)
-Q(open)
-Q(on)
-Q(off)
 Q(toggle)
 Q(write)
-Q(read)
-Q(readall)
-Q(readline)
 Q(input)
-Q(os)
 Q(freq)
-Q(repl_info)
+Q(unique_id)
 Q(disable_irq)
 Q(enable_irq)
-Q(millis)
-Q(micros)
-Q(elapsed_millis)
-Q(elapsed_micros)
-Q(udelay)
 Q(flush)
-Q(FileIO)
-Q(mkdisk)
-Q(enable)
-Q(disable)
-// Entries for sys.path
+Q(repl_uart)
+// entries for sys.path
 Q(/flash)
 Q(/flash/lib)
-#if MICROPY_HW_HAS_SDCARD
-Q(/sd)
-Q(/sd/lib)
-#endif
 
 // for module weak links
+Q(struct)
 Q(binascii)
 Q(re)
 Q(json)
 Q(heapq)
+Q(hashlib)
 
 // for os module
-Q(uos)
 Q(os)
+Q(uos)
 Q(sysname)
 Q(nodename)
 Q(release)
@@ -86,19 +67,25 @@ Q(machine)
 Q(uname)
 Q(/)
 Q(flash)
-#if MICROPY_HW_HAS_SDCARD
-Q(sd)
-#endif
 Q(chdir)
 Q(getcwd)
 Q(listdir)
 Q(mkdir)
+Q(rename)
 Q(remove)
 Q(rmdir)
 Q(unlink)
 Q(sep)
 Q(stat)
 Q(urandom)
+Q(mkfs)
+Q(mount)
+Q(unmount)
+Q(readonly)
+Q(readblocks)
+Q(writeblocks)
+Q(sync)
+Q(count)
 
 // for file class
 Q(seek)
@@ -106,92 +93,109 @@ Q(tell)
 
 // for Pin class
 Q(Pin)
+Q(board)
 Q(init)
 Q(value)
-Q(low)
-Q(high)
 Q(toggle)
-Q(get_config)
-Q(name)
-Q(af)
+Q(id)
 Q(mode)
-Q(type)
-Q(strength)
+Q(pull)
+Q(drive)
+Q(alt)
+Q(alt_list)
 Q(IN)
 Q(OUT)
-Q(STD)
-Q(STD_PU)
-Q(STD_PD)
-Q(OD)
-Q(OD_PU)
-Q(OD_PD)
-Q(INT_RISING)
-Q(INT_FALLING)
-Q(INT_RISING_FALLING)
-Q(INT_LOW_LEVEL)
-Q(INT_HIGH_LEVEL)
-Q(S2MA)
-Q(S4MA)
-Q(S6MA)
+Q(OPEN_DRAIN)
+Q(ALT)
+Q(ALT_OPEN_DRAIN)
+Q(PULL_UP)
+Q(PULL_DOWN)
+Q(LOW_POWER)
+Q(MED_POWER)
+Q(HIGH_POWER)
+Q(IRQ_RISING)
+Q(IRQ_FALLING)
+Q(IRQ_LOW_LEVEL)
+Q(IRQ_HIGH_LEVEL)
 
 // for UART class
 Q(UART)
+Q(init)
+Q(deinit)
+Q(any)
+Q(sendbreak)
+Q(id)
 Q(baudrate)
 Q(bits)
 Q(stop)
 Q(parity)
-Q(init)
-Q(deinit)
-Q(all)
-Q(writechar)
-Q(readchar)
-Q(readinto)
-Q(read_buf_len)
-Q(timeout)
-Q(timeout_char)
-Q(repl_uart)
-Q(flow)
-Q(FLOW_NONE)
-Q(FLOW_TX)
-Q(FLOW_RX)
-Q(FLOW_TXRX)
+Q(pins)
+Q(EVEN)
+Q(ODD)
+Q(RX_ANY)
 
 // for I2C class
 Q(I2C)
+Q(id)
+Q(mode)
+Q(baudrate)
+Q(pins)
 Q(addr)
-Q(data)
+Q(nbytes)
+Q(buf)
+Q(stop)
 Q(memaddr)
-Q(addr_size)
+Q(addrsize)
 Q(init)
 Q(deinit)
-Q(is_ready)
 Q(scan)
-Q(send)
-Q(recv)
-Q(mem_read)
-Q(mem_write)
+Q(readfrom)
+Q(readfrom_into)
+Q(writeto)
+Q(readfrom_mem)
+Q(readfrom_mem_into)
+Q(writeto_mem)
+Q(MASTER)
 
 // for ADC class
 Q(ADC)
-Q(read)
+Q(ADCChannel)
+Q(value)
+Q(init)
+Q(deinit)
+Q(channel)
+Q(id)
+Q(pin)
 
-#if MICROPY_HW_HAS_SDCARD
 // for SD class
 Q(SD)
-Q(enable)
-Q(disable)
-#endif
+Q(init)
+Q(deinit)
+Q(id)
+Q(pins)
 
 // for RTC class
 Q(RTC)
+Q(init)
+Q(alarm)
+Q(alarm_left)
+Q(now)
+Q(deinit)
 Q(datetime)
+Q(repeat)
 
 // for time class
+Q(time)
 Q(utime)
 Q(localtime)
 Q(mktime)
 Q(sleep)
-Q(time)
+Q(sleep_ms)
+Q(sleep_us)
+Q(ticks_ms)
+Q(ticks_us)
+Q(ticks_cpu)
+Q(ticks_diff)
 
 // for select class
 Q(select)
@@ -208,6 +212,7 @@ Q(getaddrinfo)
 Q(family)
 Q(type)
 Q(send)
+Q(sendall)
 Q(sendto)
 Q(recv)
 Q(recvfrom)
@@ -218,7 +223,10 @@ Q(settimeout)
 Q(setblocking)
 Q(setsockopt)
 Q(close)
+Q(makefile)
 Q(protocol)
+Q(error)
+Q(timeout)
 Q(AF_INET)
 Q(AF_INET6)
 Q(SOCK_STREAM)
@@ -229,16 +237,30 @@ Q(IPPROTO_TCP)
 Q(IPPROTO_UDP)
 Q(IPPROTO_RAW)
 
+// for ssl class
+Q(ssl)
+Q(ussl)
+Q(wrap_socket)
+Q(sock)
+Q(keyfile)
+Q(certfile)
+Q(server_side)
+Q(cert_reqs)
+Q(ca_certs)
+Q(SSLError)
+Q(CERT_NONE)
+Q(CERT_OPTIONAL)
+Q(CERT_REQUIRED)
+
 // for network class
 Q(network)
-Q(route)
-Q(start_server)
-Q(stop_server)
-Q(server_enabled)
+Q(server_running)
 Q(server_login)
+Q(server_timeout)
 
 // for WLAN class
 Q(WLAN)
+Q(iwconfig)
 Q(key)
 Q(security)
 Q(ssid)
@@ -250,30 +272,31 @@ Q(disconnect)
 Q(channel)
 Q(rssi)
 Q(ifconfig)
+Q(info)
+Q(connections)
+#if MICROPY_PORT_WLAN_URN
 Q(urn)
+#endif
 Q(mode)
-Q(config_ip)
 Q(ip)
 Q(subnet)
 Q(gateway)
 Q(dns)
 Q(mac)
+Q(antenna)
 Q(STA)
 Q(AP)
-Q(P2P)
 Q(OPEN)
 Q(WEP)
-Q(WPA_WPA2)
-Q(WPA_ENT)
-Q(WPS_PBC)
-Q(WPS_PIN)
-Q(DYNAMIC)
-Q(STATIC)
+Q(WPA)
+Q(WPA2)
+Q(INTERNAL)
+Q(EXTERNAL)
 
 // for WDT class
 Q(WDT)
-Q(enable)
-Q(kick)
+Q(feed)
+Q(timeout)
 
 // for HeartBeat class
 Q(HeartBeat)
@@ -286,10 +309,10 @@ Q(enable)
 Q(disable)
 Q(callback)
 Q(handler)
-Q(intmode)
+Q(mode)
 Q(value)
 Q(priority)
-Q(wakes)
+Q(wake_from)
 
 // for Sleep class
 Q(Sleep)
@@ -312,15 +335,62 @@ Q(RTC_WAKE)
 
 // for SPI class
 Q(SPI)
+Q(id)
+Q(mode)
 Q(baudrate)
 Q(bits)
-Q(submode)
-Q(cs)
+Q(polarity)
+Q(phase)
+Q(firstbit)
 Q(init)
 Q(deinit)
-Q(send)
-Q(recv)
-Q(send_recv)
-Q(ACTIVE_LOW)
-Q(ACTIVE_HIGH)
+Q(write)
+Q(read)
+Q(readinto)
+Q(write_readinto)
+Q(nbytes)
+Q(write)
+Q(buf)
+Q(MASTER)
+Q(MSB)
+
+// for Timer class
+Q(Timer)
+Q(TimerChannel)
+Q(init)
+Q(deinit)
+Q(freq)
+Q(period)
+Q(mode)
+Q(width)
+Q(channel)
+Q(polarity)
+Q(duty_cycle)
+Q(time)
+Q(event_count)
+Q(event_time)
+Q(A)
+Q(B)
+Q(ONE_SHOT)
+Q(PERIODIC)
+Q(EDGE_COUNT)
+Q(EDGE_TIME)
+Q(PWM)
+Q(POSITIVE)
+Q(NEGATIVE)
+
+// for uhashlib module
+Q(uhashlib)
+Q(update)
+Q(digest)
+//Q(md5)
+Q(sha1)
+Q(sha256)
+
+// for ubinascii module
+Q(ubinascii)
+Q(hexlify)
+Q(unhexlify)
+Q(a2b_base64)
+Q(b2a_base64)
 

cc3200/serverstask.c

@@ -36,28 +36,35 @@
 #include "telnet.h"
 #include "ftp.h"
 #include "pybwdt.h"
+#include "modusocket.h"
 
 
 /******************************************************************************
  DECLARE PRIVATE DEFINITIONS
  ******************************************************************************/
 
-#define SERVERS_DEF_USER            "micro"
-#define SERVERS_DEF_PASS            "python"
+#define SERVERS_DEF_USER                "micro"
+#define SERVERS_DEF_PASS                "python"
+#define SERVERS_DEF_TIMEOUT_MS          300000        // 5 minutes
+#define SERVERS_MIN_TIMEOUT_MS          5000          // 5 seconds
 
 /******************************************************************************
  DEFINE PRIVATE TYPES
  ******************************************************************************/
 typedef struct {
-    volatile bool enabled;
-    volatile bool do_disable;
-    volatile bool do_enable;
-}servers_Data_t;
+    uint32_t timeout;
+    bool enabled;
+    bool do_disable;
+    bool do_enable;
+    bool do_reset;
+} servers_data_t;
 
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-static servers_Data_t servers_data = {.enabled = false, .do_disable = false, .do_enable = false};
+static servers_data_t servers_data = {.timeout = SERVERS_DEF_TIMEOUT_MS, .enabled = false, .do_disable = false,
+                                      .do_enable = false, .do_reset = false};
+static volatile bool sleep_sockets = false;
 
 /******************************************************************************
  DECLARE PRIVATE FUNCTIONS
@@ -100,6 +107,17 @@ void TASK_Servers (void *pvParameters) {
             servers_data.do_disable = false;
             servers_data.enabled = false;
         }
+        else if (servers_data.do_reset) {
+            // resetting the servers is needed to prevent half-open sockets
+            servers_data.do_reset = false;
+            if (servers_data.enabled) {
+                telnet_reset();
+                ftp_reset();
+            }
+            // and we should also close all user sockets. We do it here
+            // for convinience and to save on code size.
+            modusocket_close_all_user_sockets();
+        }
 
         if (cycle) {
             telnet_run();
@@ -108,11 +126,19 @@ void TASK_Servers (void *pvParameters) {
             ftp_run();
         }
 
+        if (sleep_sockets) {
+            sleep_sockets = false;
+            pybwdt_srv_sleeping(true);
+            modusocket_enter_sleep();
+            pybwdt_srv_sleeping(false);
+        }
+
+        // set the alive flag for the wdt
+        pybwdt_srv_alive();
+
         // move to the next cycle
         cycle = cycle ? false : true;
         HAL_Delay(SERVERS_CYCLE_TIME_MS);
-        // set the alive flag for the wdt
-        pybwdt_srv_alive();
     }
 }
 
@@ -129,12 +155,22 @@ void servers_stop (void) {
     HAL_Delay (SERVERS_CYCLE_TIME_MS * 5);
 }
 
+void servers_reset (void) {
+    servers_data.do_reset = true;
+}
+
 bool servers_are_enabled (void) {
     return servers_data.enabled;
 }
 
+void server_sleep_sockets (void) {
+    sleep_sockets = true;
+    HAL_Delay (SERVERS_CYCLE_TIME_MS + 1);
+}
+
 void servers_close_socket (int16_t *sd) {
     if (*sd > 0) {
+        modusocket_socket_delete(*sd);
         sl_Close(*sd);
         *sd = -1;
     }
@@ -145,6 +181,18 @@ void servers_set_login (char *user, char *pass) {
     memcpy(servers_pass, pass, SERVERS_USER_PASS_LEN_MAX);
 }
 
+bool servers_set_timeout (uint32_t timeout) {
+    if (timeout < SERVERS_MIN_TIMEOUT_MS) {
+        return false;
+    }
+    servers_data.timeout = timeout;
+    return true;
+}
+
+uint32_t servers_get_timeout (void) {
+    return servers_data.timeout;
+}
+
 /******************************************************************************
  DEFINE PRIVATE FUNCTIONS
  ******************************************************************************/

cc3200/serverstask.h

@@ -31,14 +31,14 @@
  DEFINE CONSTANTS
  ******************************************************************************/
 #define SERVERS_PRIORITY                        2
-#define SERVERS_STACK_SIZE                      1072
+#define SERVERS_STACK_SIZE                      1024
 
 #define SERVERS_SSID_LEN_MAX                    16
 #define SERVERS_KEY_LEN_MAX                     16
 
 #define SERVERS_USER_PASS_LEN_MAX               16
 
-#define SERVERS_CYCLE_TIME_MS                   5
+#define SERVERS_CYCLE_TIME_MS                   2
 
 /******************************************************************************
  DEFINE TYPES
@@ -56,8 +56,12 @@ extern char servers_pass[];
 extern void TASK_Servers (void *pvParameters);
 extern void servers_start (void);
 extern void servers_stop (void);
+extern void servers_reset (void);
 extern bool servers_are_enabled (void);
 extern void servers_close_socket (int16_t *sd);
 extern void servers_set_login (char *user, char *pass);
+extern void server_sleep_sockets (void);
+extern bool servers_set_timeout (uint32_t timeout);
+extern uint32_t servers_get_timeout (void);
 
 #endif /* SERVERSTASK_H_ */

cc3200/telnet/telnet.c

@@ -31,11 +31,14 @@
 #include "py/obj.h"
 #include "telnet.h"
 #include "simplelink.h"
+#include "modnetwork.h"
 #include "modwlan.h"
+#include "modusocket.h"
 #include "debug.h"
 #include "mpexception.h"
 #include "serverstask.h"
 #include "genhdr/mpversion.h"
+#include "irq.h"
 
 /******************************************************************************
  DEFINE PRIVATE CONSTANTS
@@ -44,10 +47,9 @@
 // rxRindex and rxWindex must be uint8_t and TELNET_RX_BUFFER_SIZE == 256
 #define TELNET_RX_BUFFER_SIZE               256
 #define TELNET_MAX_CLIENTS                  1
-#define TELNET_TX_RETRIES_MAX               25
+#define TELNET_TX_RETRIES_MAX               50
 #define TELNET_WAIT_TIME_MS                 5
 #define TELNET_LOGIN_RETRIES_MAX            3
-#define TELNET_TIMEOUT_MS                   300000        // 5 minutes
 #define TELNET_CYCLE_TIME_MS                (SERVERS_CYCLE_TIME_MS * 2)
 
 /******************************************************************************
@@ -107,8 +109,8 @@ typedef struct {
  ******************************************************************************/
 static telnet_data_t telnet_data;
 static const char* telnet_welcome_msg       = "Micro Python " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME "\r\n";
-static const char* telnet_request_user      = "Login as:";
-static const char* telnet_request_password  = "Password:";
+static const char* telnet_request_user      = "Login as: ";
+static const char* telnet_request_password  = "Password: ";
 static const char* telnet_invalid_loggin    = "\r\nInvalid credentials, try again.\r\n";
 static const char* telnet_loggin_success    = "\r\nLogin succeeded!\r\nType \"help()\" for more information.\r\n";
 static const uint8_t telnet_options_user[]  = // IAC   WONT ECHO IAC   WONT SUPPRESS_GO_AHEAD IAC  WILL LINEMODE
@@ -131,7 +133,6 @@ static void telnet_process (void);
 static int telnet_process_credential (char *credential, _i16 rxLen);
 static void telnet_parse_input (uint8_t *str, int16_t *len);
 static bool telnet_send_with_retries (int16_t sd, const void *pBuf, int16_t len);
-static void telnet_reset (void);
 static void telnet_reset_buffer (void);
 
 /******************************************************************************
@@ -150,7 +151,7 @@ void telnet_run (void) {
             telnet_wait_for_enabled();
             break;
         case E_TELNET_STE_START:
-            if (telnet_create_socket()) {
+            if (wlan_is_connected() && telnet_create_socket()) {
                 telnet_data.state = E_TELNET_STE_LISTEN;
             }
             break;
@@ -236,7 +237,7 @@ void telnet_run (void) {
     }
 
     if (telnet_data.state >= E_TELNET_STE_CONNECTED) {
-        if (telnet_data.timeout++ > (TELNET_TIMEOUT_MS / TELNET_CYCLE_TIME_MS)) {
+        if (telnet_data.timeout++ > (servers_get_timeout() / TELNET_CYCLE_TIME_MS)) {
             telnet_reset();
         }
     }
@@ -292,6 +293,13 @@ void telnet_disable (void) {
     telnet_data.state = E_TELNET_STE_DISABLED;
 }
 
+void telnet_reset (void) {
+    // close the connection and start all over again
+    servers_close_socket(&telnet_data.n_sd);
+    servers_close_socket(&telnet_data.sd);
+    telnet_data.state = E_TELNET_STE_START;
+}
+
 bool telnet_is_enabled (void) {
     return telnet_data.enabled;
 }
@@ -322,21 +330,27 @@ static bool telnet_create_socket (void) {
     // Open a socket for telnet
     ASSERT ((telnet_data.sd = sl_Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) > 0);
     if (telnet_data.sd > 0) {
+        // add the socket to the network administration
+        modusocket_socket_add(telnet_data.sd, false);
+
         // Enable non-blocking mode
         nonBlockingOption.NonblockingEnabled = 1;
-        ASSERT (sl_SetSockOpt(telnet_data.sd, SOL_SOCKET, SL_SO_NONBLOCKING, &nonBlockingOption, sizeof(nonBlockingOption)) == SL_SOC_OK);
+        ASSERT ((result = sl_SetSockOpt(telnet_data.sd, SOL_SOCKET, SL_SO_NONBLOCKING, &nonBlockingOption, sizeof(nonBlockingOption))) == SL_SOC_OK);
 
         // Bind the socket to a port number
         sServerAddress.sin_family = AF_INET;
         sServerAddress.sin_addr.s_addr = INADDR_ANY;
         sServerAddress.sin_port = htons(TELNET_PORT);
 
-        ASSERT (sl_Bind(telnet_data.sd, (const SlSockAddr_t *)&sServerAddress, sizeof(sServerAddress)) == SL_SOC_OK);
+        ASSERT ((result |= sl_Bind(telnet_data.sd, (const SlSockAddr_t *)&sServerAddress, sizeof(sServerAddress))) == SL_SOC_OK);
 
         // Start listening
-        ASSERT ((result = sl_Listen (telnet_data.sd, TELNET_MAX_CLIENTS)) == SL_SOC_OK);
+        ASSERT ((result |= sl_Listen (telnet_data.sd, TELNET_MAX_CLIENTS)) == SL_SOC_OK);
 
-        return (result == SL_SOC_OK) ? true : false;
+        if (result == SL_SOC_OK) {
+            return true;
+        }
+        servers_close_socket(&telnet_data.sd);
     }
 
     return false;
@@ -352,15 +366,18 @@ static void telnet_wait_for_connection (void) {
         return;
     }
     else {
-        // close the listening socket, we don't need it anymore
-        sl_Close(telnet_data.sd);
-
         if (telnet_data.n_sd <= 0) {
             // error
             telnet_reset();
             return;
         }
 
+        // close the listening socket, we don't need it anymore
+        servers_close_socket(&telnet_data.sd);
+
+        // add the new socket to the network administration
+        modusocket_socket_add(telnet_data.n_sd, false);
+
         // client connected, so go on
         telnet_data.rxWindex = 0;
         telnet_data.rxRindex = 0;
@@ -476,8 +493,9 @@ static void telnet_parse_input (uint8_t *str, int16_t *len) {
 
 static bool telnet_send_with_retries (int16_t sd, const void *pBuf, int16_t len) {
     int32_t retries = 0;
-    // abort sending if we happen to be within interrupt context
-    if ((HAL_NVIC_INT_CTRL_REG & HAL_VECTACTIVE_MASK) == 0) {
+    uint32_t delay = TELNET_WAIT_TIME_MS;
+    // only if we are not within interrupt context and interrupts are enabled
+    if ((HAL_NVIC_INT_CTRL_REG & HAL_VECTACTIVE_MASK) == 0 && query_irq() == IRQ_STATE_ENABLED) {
         do {
             _i16 result = sl_Send(sd, pBuf, len, 0);
             if (result > 0) {
@@ -486,19 +504,13 @@ static bool telnet_send_with_retries (int16_t sd, const void *pBuf, int16_t len)
             else if (SL_EAGAIN != result) {
                 return false;
             }
-            HAL_Delay (TELNET_WAIT_TIME_MS);
+            // start with the default delay and increment it on each retry
+            HAL_Delay (delay++);
         } while (++retries <= TELNET_TX_RETRIES_MAX);
     }
     return false;
 }
 
-static void telnet_reset (void) {
-    // close the connection and start all over again
-    servers_close_socket(&telnet_data.n_sd);
-    servers_close_socket(&telnet_data.sd);
-    telnet_data.state = E_TELNET_STE_START;
-}
-
 static void telnet_reset_buffer (void) {
     // erase any characters present in the current line
     memset (telnet_data.rxBuffer, '\b', TELNET_RX_BUFFER_SIZE / 2);

cc3200/telnet/telnet.h

@@ -38,6 +38,7 @@ extern bool telnet_rx_any (void);
 extern int  telnet_rx_char (void);
 extern void telnet_enable (void);
 extern void telnet_disable (void);
+extern void telnet_reset (void);
 extern bool telnet_is_enabled (void);
 extern bool telnet_is_active (void);
 

cc3200/tools/smoke.py

@@ -0,0 +1,74 @@
+import pyb
+import os
+
+"""
+Execute it like this:
+
+python3 run-tests --target wipy --device 192.168.1.1 ../cc3200/tools/smoke.py
+"""
+
+pin_map = [23, 24, 11, 12, 13, 14, 15, 16, 17, 22, 28, 10, 9, 8, 7, 6, 30, 31, 3, 0, 4, 5]
+test_bytes = os.urandom(1024)
+
+def test_pin_read (pull):
+    # enable the pull resistor on all pins, then read the value
+    for p in pin_map:
+        pin = pyb.Pin('GP' + str(p), mode=pyb.Pin.IN, pull=pull)
+        # read the pin value
+        print(pin())
+
+def test_pin_shorts (pull):
+    if pull == pyb.Pin.PULL_UP:
+        pull_inverted = pyb.Pin.PULL_DOWN
+    else:
+        pull_inverted = pyb.Pin.PULL_UP
+    # enable all pulls of the specified type
+    for p in pin_map:
+        pin = pyb.Pin('GP' + str(p), mode=pyb.Pin.IN, pull=pull_inverted)
+    # then change the pull one pin at a time and read its value
+    i = 0
+    while i < len(pin_map):
+        pin = pyb.Pin('GP' + str(pin_map[i]), mode=pyb.Pin.IN, pull=pull)
+        pyb.Pin('GP' + str(pin_map[i - 1]), mode=pyb.Pin.IN, pull=pull_inverted)
+        i += 1
+        # read the pin value
+        print(pin())
+
+test_pin_read(pyb.Pin.PULL_UP)
+test_pin_read(pyb.Pin.PULL_DOWN)
+test_pin_shorts(pyb.Pin.PULL_UP)
+test_pin_shorts(pyb.Pin.PULL_DOWN)
+
+# create a test directory
+os.mkdir('/flash/test')
+os.chdir('/flash/test')
+print(os.getcwd())
+# create a new file
+f = open('test.txt', 'w')
+n_w = f.write(test_bytes)
+print(n_w == len(test_bytes))
+f.close()
+f = open('test.txt', 'r')
+r = bytes(f.readall(), 'ascii')
+# check that we can write and read it correctly
+print(r == test_bytes)
+f.close()
+os.remove('test.txt')
+os.chdir('..')
+os.rmdir('test')
+
+ls = os.listdir()
+print('test' not in ls)
+print(ls)
+
+# test the real time clock
+rtc = pyb.RTC()
+while rtc.now()[6] > 800:
+    pass
+
+time1 = rtc.now()
+pyb.delay(1000)
+time2 = rtc.now()
+print(time2[5] - time1[5] == 1)
+print(time2[6] - time1[6] < 5000) # microseconds
+

cc3200/tools/smoke.py.exp

@@ -0,0 +1,95 @@
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+/flash/test
+True
+True
+True
+['main.py', 'sys', 'lib', 'cert', 'boot.py']
+True
+True

cc3200/tools/uniflash.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+
+"""
+Flash the WiPy (format, update service pack and program).
+
+Example:
+
+> python uniflash.py -u "C:\ti\uniflash_3.2\uniflashCLI.bat" -c "C:\VirtualBoxShared\GitHub\wipy_uniflash.usf" -p 8 -s "C:\ti\CC31xx_CC32xx_ServicePack_1.0.0.10.0\servicepack_1.0.0.10.0.bin"
+
+or:
+
+> python uniflash.py -u "C:\ti\uniflash_3.2\uniflashCLI.bat" -c "C:\VirtualBoxShared\GitHub\launchxl_uniflash.usf" -p 8 -s "C:\ti\CC31xx_CC32xx_ServicePack_1.0.0.10.0\servicepack_1.0.0.10.0.bin"
+
+"""
+
+import sys
+import argparse
+import subprocess
+
+
+def print_exception(e):
+    print ('Exception: {}, on line {}'.format(e, sys.exc_info()[-1].tb_lineno))
+
+
+def execute(command):
+    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    cmd_log = ""
+
+    # Poll process for new output until finished
+    while True:
+        nextline = process.stdout.readline()
+        if nextline == '' and process.poll() != None:
+            break
+        sys.stdout.write(nextline)
+        sys.stdout.flush()
+        cmd_log += nextline
+
+    output = process.communicate()[0]
+    exitCode = process.returncode
+
+    if exitCode == 0:
+        return cmd_log
+    else:
+        raise ProcessException(command, exitCode, output)
+
+def main():
+    cmd_parser = argparse.ArgumentParser(description='Flash the WiPy and optionally run a small test on it.')
+    cmd_parser.add_argument('-u', '--uniflash', default=None, help='the path to the uniflash cli executable')
+    cmd_parser.add_argument('-c', '--config', default=None, help='the path to the uniflash config file')
+    cmd_parser.add_argument('-p', '--port', default=8, help='the com serial port')
+    cmd_parser.add_argument('-s', '--servicepack', default=None, help='the path to the servicepack file')
+    args = cmd_parser.parse_args()
+
+    output = ""
+    com_port = 'com=' + str(args.port)
+    servicepack_path = 'spPath=' + args.servicepack
+
+    try:
+        if args.uniflash == None or args.config == None:
+            raise ValueError('uniflash path and config path are mandatory')
+        if args.servicepack == None:
+            output += execute([args.uniflash, '-config', args.config, '-setOptions', com_port, '-operations', 'format', 'program'])
+        else:
+            output += execute([args.uniflash, '-config', args.config, '-setOptions', com_port, servicepack_path, '-operations', 'format', 'servicePackUpdate', 'program'])
+    except Exception as e:
+        print_exception(e)
+        output = ""
+    finally:
+        if "Finish Executing operation: program" in output:
+            print("======================================")
+            print("Board programmed OK")
+            print("======================================")
+            sys.exit(0)
+        else:
+            print("======================================")
+            print("ERROR: Programming failed!")
+            print("======================================")
+            sys.exit(1)
+
+if __name__ == "__main__":
+    main()

cc3200/tools/update-wipy.py

@@ -0,0 +1,189 @@
+#!/usr/bin/env python
+
+"""
+The WiPy firmware update script. Transmits the specified firmware file
+over FTP, and then resets the WiPy and optionally verifies that software
+was correctly updated.
+
+Usage:
+
+    ./update-wipy.py --file "path_to_mcuimg.bin" --verify
+
+Or:
+
+    python update-wipy.py --file "path_to_mcuimg.bin"
+"""
+
+import sys
+import argparse
+import time
+from ftplib import FTP
+from telnetlib import Telnet
+
+
+def print_exception(e):
+    print ('Exception: {}, on line {}'.format(e, sys.exc_info()[-1].tb_lineno))
+
+
+def ftp_directory_exists(ftpobj, directory_name):
+    filelist = []
+    ftpobj.retrlines('LIST',filelist.append)
+    for f in filelist:
+        if f.split()[-1] == directory_name:
+            return True
+    return False
+
+
+def transfer_file(args):
+    with FTP(args.ip, timeout=20) as ftp:
+        print ('FTP connection established')
+
+        if '230' in ftp.login(args.user, args.password):
+            print ('Login successful')
+
+            if '250' in ftp.cwd('/flash'):
+                if not ftp_directory_exists(ftp, 'sys'):
+                    print ('/flash/sys directory does not exist')
+                    if not '550' in ftp.mkd('sys'):
+                        print ('/flash/sys directory created')
+                    else:
+                        print ('Error: cannot create /flash/sys directory')
+                        return False
+                if '250' in ftp.cwd('sys'):
+                    print ("Entered '/flash/sys' directory")
+                    with open(args.file, "rb") as fwfile:
+                        print ('Firmware image found, initiating transfer...')
+                        if '226' in ftp.storbinary("STOR " + 'mcuimg.bin', fwfile, 512):
+                            print ('File transfer complete')
+                            return True
+                        else:
+                            print ('Error: file transfer failed')
+                else:
+                    print ('Error: cannot enter /flash/sys directory')
+            else:
+                print ('Error: cannot enter /flash directory')
+        else:
+            print ('Error: ftp login failed')
+
+    return False
+
+
+def reset_board(args):
+    success = False
+
+    try:
+        tn = Telnet(args.ip, timeout=5)
+        print("Connected via Telnet, trying to login now")
+
+        if b'Login as:' in tn.read_until(b"Login as:", timeout=5):
+            tn.write(bytes(args.user, 'ascii') + b"\r\n")
+
+            if b'Password:' in tn.read_until(b"Password:", timeout=5):
+                # needed because of internal implementation details of the WiPy's telnet server
+                time.sleep(0.2)
+                tn.write(bytes(args.password, 'ascii') + b"\r\n")
+
+                if b'Type "help()" for more information.' in tn.read_until(b'Type "help()" for more information.', timeout=5):
+                    print("Telnet login succeeded")
+                    tn.write(b'\r\x03\x03') # ctrl-C twice: interrupt any running program
+                    time.sleep(1)
+                    tn.write(b'\r\x02') # ctrl-B: enter friendly REPL
+                    if b'Type "help()" for more information.' in tn.read_until(b'Type "help()" for more information.', timeout=5):
+                        tn.write(b"import pyb\r\n")
+                        tn.write(b"pyb.reset()\r\n")
+                        time.sleep(1)
+                        print("Reset performed")
+                        success = True
+                    else:
+                        print("Error: cannot enter friendly REPL")
+                else:
+                    print("Error: telnet login failed")
+
+    except Exception as e:
+        print_exception(e)
+    finally:
+        try:
+            tn.close()
+        except Exception as e:
+            pass
+        return success
+
+
+def verify_update(args):
+    success = False
+    firmware_tag = ''
+
+    def find_tag (tag):
+        if tag in firmware_tag:
+            print("Verification passed")
+            return True
+        else:
+            print("Error: verification failed, the git tag doesn't match")
+            return False
+
+    try:
+        # Specify a longer time out value here because the board has just been
+        # reset and the wireless connection might not be fully established yet
+        tn = Telnet(args.ip, timeout=15)
+        print("Connected via telnet again, lets check the git tag")
+
+        firmware_tag = tn.read_until (b'with CC3200')
+        tag_file_path = args.file.rstrip('mcuimg.bin') + 'genhdr/mpversion.h'
+        
+        if args.tag is not None:
+            success = find_tag(bytes(args.tag, 'ascii'))
+        else:
+            with open(tag_file_path) as tag_file:
+                for line in tag_file:
+                    bline = bytes(line, 'ascii')
+                    if b'MICROPY_GIT_HASH' in bline:
+                        bline = bline.lstrip(b'#define MICROPY_GIT_HASH ').replace(b'"', b'').replace(b'\r', b'').replace(b'\n', b'')
+                        success = find_tag(bline)
+                        break
+
+    except Exception as e:
+        print_exception(e)
+    finally:
+        try:
+            tn.close()
+        except Exception as e:
+            pass
+        return success
+
+
+def main():
+    cmd_parser = argparse.ArgumentParser(description='Update the WiPy firmware with the specified image file')
+    cmd_parser.add_argument('-f', '--file', default=None, help='the path of the firmware file')
+    cmd_parser.add_argument('-u', '--user', default='micro', help='the username')
+    cmd_parser.add_argument('-p', '--password', default='python', help='the login password')
+    cmd_parser.add_argument('--ip', default='192.168.1.1', help='the ip address of the WiPy')
+    cmd_parser.add_argument('--verify', action='store_true', help='verify that the update succeeded')
+    cmd_parser.add_argument('-t', '--tag', default=None, help='git tag of the firmware image')
+    args = cmd_parser.parse_args()
+
+    result = 1
+
+    try:
+        if args.file is None:
+            raise ValueError('the image file path must be specified')
+        if transfer_file(args):
+            if reset_board(args):
+                if args.verify:
+                    print ('Waiting for the WiFi connection to come up again...')
+                    # this time is to allow the system's wireless network card to connect to the
+                    # WiPy again. Sometimes it might only take a couple of seconds, but let's
+                    # leave 15s to be on the safe side
+                    time.sleep(15)
+                    if verify_update(args):
+                        result = 0
+                else:
+                    result = 0
+
+    except Exception as e:
+        print_exception(e)
+    finally:
+        sys.exit(result)
+
+
+if __name__ == "__main__":
+    main()

cc3200/util/cryptohash.c

@@ -35,20 +35,19 @@
 #include "rom_map.h"
 #include "prcm.h"
 #include "shamd5.h"
-#include "hash.h"
-#include "simplelink.h"
+#include "cryptohash.h"
 
 
 /******************************************************************************
  DEFINE PUBLIC FUNCTIONS
  ******************************************************************************/
-void HASH_Init (void) {
+void CRYPTOHASH_Init (void) {
     // Enable the Data Hashing and Transform Engine
     MAP_PRCMPeripheralClkEnable(PRCM_DTHE, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
     MAP_PRCMPeripheralReset(PRCM_DTHE);
 }
 
-void HASH_SHAMD5Start (uint32_t algo, uint32_t blocklen) {
+void CRYPTOHASH_SHAMD5Start (uint32_t algo, uint32_t blocklen) {
     // wait until the context is ready
     while ((HWREG(SHAMD5_BASE + SHAMD5_O_IRQSTATUS) & SHAMD5_INT_CONTEXT_READY) == 0);
 
@@ -64,12 +63,12 @@ void HASH_SHAMD5Start (uint32_t algo, uint32_t blocklen) {
     HWREG(SHAMD5_BASE + SHAMD5_O_LENGTH) = blocklen;
 }
 
-void HASH_SHAMD5Update (uint8_t *data, uint32_t datalen) {
+void CRYPTOHASH_SHAMD5Update (uint8_t *data, uint32_t datalen) {
     // write the data
     SHAMD5DataWriteMultiple(data, datalen);
 }
 
-void HASH_SHAMD5Read (uint8_t *hash) {
+void CRYPTOHASH_SHAMD5Read (uint8_t *hash) {
     // wait for the output to be ready
     while((HWREG(SHAMD5_BASE + SHAMD5_O_IRQSTATUS) & SHAMD5_INT_OUTPUT_READY) == 0);
     // read the result

cc3200/util/cryptohash.h

@@ -0,0 +1,38 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Daniel Campora
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef CRYPTOHASH_H_
+#define CRYPTOHASH_H_
+
+/******************************************************************************
+ DECLARE PUBLIC FUNCTIONS
+ ******************************************************************************/
+extern void CRYPTOHASH_Init (void);
+extern void CRYPTOHASH_SHAMD5Start (uint32_t algo, uint32_t blocklen);
+extern void CRYPTOHASH_SHAMD5Update (uint8_t *data, uint32_t datalen);
+extern void CRYPTOHASH_SHAMD5Read (uint8_t *hash);
+
+#endif /* CRYPTOHASH_H_ */

cc3200/util/random.c

@@ -27,14 +27,15 @@
 #include <stdint.h>
 #include <stdbool.h>
 
+#include "py/obj.h"
 #include "inc/hw_types.h"
 #include "inc/hw_ints.h"
 #include "inc/hw_memmap.h"
 #include "rom_map.h"
 #include "prcm.h"
 #include "simplelink.h"
+#include "modnetwork.h"
 #include "modwlan.h"
-#include "py/obj.h"
 #include "random.h"
 #include "debug.h"
 
@@ -42,11 +43,11 @@
 /******************************************************************************
 * LOCAL TYPES
 ******************************************************************************/
-typedef union Id_t {
+typedef union _rng_id_t {
     uint32_t       id32;
     uint16_t       id16[3];
     uint8_t        id8[6];
-} Id_t;
+} rng_id_t;
 
 /******************************************************************************
 * LOCAL VARIABLES
@@ -63,29 +64,19 @@ static uint32_t lfsr (uint32_t input);
 ******************************************************************************/
 static uint32_t lfsr (uint32_t input) {
     assert( input != 0 );
-
-    /*lint -save -e501*/
     return (input >> 1) ^ (-(input & 0x01) & 0x00E10000);
-    /*lint -restore*/
 }
 
-#if MICROPY_HW_ENABLE_RNG
-/// \moduleref rng
-
-/// \function rng()
-/// Return a 24-bit hardware generated random number.
 STATIC mp_obj_t pyb_rng_get(void) {
     return mp_obj_new_int(rng_get());
 }
-
 MP_DEFINE_CONST_FUN_OBJ_0(pyb_rng_get_obj, pyb_rng_get);
-#endif
 
 /******************************************************************************
 * PUBLIC FUNCTIONS
 ******************************************************************************/
 void rng_init0 (void) {
-    Id_t juggler;
+    rng_id_t juggler;
     uint32_t seconds;
     uint16_t mseconds;
 
@@ -94,7 +85,7 @@ void rng_init0 (void) {
 
     wlan_get_mac (juggler.id8);
 
-    // Flatten the 48-bit board identification to 24 bits
+    // flatten the 48-bit board identification to 24 bits
     juggler.id16[0] ^= juggler.id16[2];
 
     juggler.id8[0]  ^= juggler.id8[3];
@@ -103,7 +94,8 @@ void rng_init0 (void) {
 
     s_seed = juggler.id32 & 0x00FFFFFF;
     s_seed += (seconds & 0x000FFFFF) + mseconds;
-    // The seed must not be zero
+
+    // the seed must not be zero
     if (s_seed == 0) {
         s_seed = 1;
     }

cc3200/util/random.h

@@ -30,8 +30,6 @@
 void rng_init0 (void);
 uint32_t rng_get (void);
 
-#if MICROPY_HW_ENABLE_RNG
-    MP_DECLARE_CONST_FUN_OBJ(pyb_rng_get_obj);
-#endif
+MP_DECLARE_CONST_FUN_OBJ(pyb_rng_get_obj);
 
 #endif // __RANDOM_H

docs/conf.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
-# Micro Python documentation build configuration file, created by
+# MicroPython documentation build configuration file, created by
 # sphinx-quickstart on Sun Sep 21 11:42:03 2014.
 #
 # This file is execfile()d with the current directory set to its
@@ -47,10 +47,10 @@ source_suffix = '.rst'
 #source_encoding = 'utf-8-sig'
 
 # The master toctree document.
-master_doc = 'index'
+#master_doc = 'index'
 
 # General information about the project.
-project = 'Micro Python'
+project = 'MicroPython'
 copyright = '2014, Damien P. George'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -60,7 +60,7 @@ copyright = '2014, Damien P. George'
 # The short X.Y version.
 version = '1.4'
 # The full version, including alpha/beta/rc tags.
-release = '1.4.3'
+release = '1.4.6'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -134,7 +134,7 @@ else:
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-#html_logo = '../logo/trans-logo.png'
+#html_logo = '../../logo/trans-logo.png'
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -213,7 +213,7 @@ latex_elements = {
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-  ('index', 'MicroPython.tex', 'Micro Python Documentation',
+  ('index', 'MicroPython.tex', 'MicroPython Documentation',
    'Damien P. George', 'manual'),
 ]
 
@@ -243,7 +243,7 @@ latex_documents = [
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('index', 'micropython', 'Micro Python Documentation',
+    ('index', 'micropython', 'MicroPython Documentation',
      ['Damien P. George'], 1),
 ]
 
@@ -257,7 +257,7 @@ man_pages = [
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-  ('index', 'MicroPython', 'Micro Python Documentation',
+  ('index', 'MicroPython', 'MicroPython Documentation',
    'Damien P. George', 'MicroPython', 'One line description of project.',
    'Miscellaneous'),
 ]
@@ -277,3 +277,29 @@ texinfo_documents = [
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {'http://docs.python.org/': None}
+
+
+# Work out the port to generate the docs for
+from collections import OrderedDict
+micropy_port = os.getenv('MICROPY_PORT') or 'pyboard'
+tags.add('port_' + micropy_port)
+ports = OrderedDict((
+    ("unix", "unix"),
+    ("pyboard", "the pyboard"),
+    ("wipy", "the WiPy"),
+    ("esp8266", "esp8266"),
+))
+
+# The members of the html_context dict are available inside topindex.html
+url_prefix = os.getenv('MICROPY_URL_PREFIX') or '/'
+html_context = {
+    'port':micropy_port,
+    'port_name':ports[micropy_port],
+    'all_ports':[(n, url_prefix + p) for p, n in ports.items()],
+}
+
+# Append the other ports' specific folders/files to the exclude pattern
+exclude_patterns.extend([port + '*' for port in ports if port != micropy_port])
+
+# Specify a custom master document based on the port name
+master_doc = micropy_port + '_' + 'index'

docs/contents.rst

@@ -1,11 +0,0 @@
-Micro Python documentation contents
-===================================
-
-.. toctree::
-
-   quickref.rst
-   general.rst
-   tutorial/index.rst
-   library/index.rst
-   hardware/index.rst
-   license.rst

docs/esp8266_contents.rst

@@ -0,0 +1,8 @@
+MicroPython documentation contents
+==================================
+
+.. toctree::
+
+    library/index.rst
+    reference/index.rst
+    license.rst

docs/esp8266_index.rst

@@ -0,0 +1,15 @@
+MicroPython documentation and references
+========================================
+
+.. toctree::
+
+    library/index.rst
+    license.rst
+    esp8266_contents.rst
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`

docs/index.rst

@@ -1,19 +0,0 @@
-Micro Python documentation and references
-=========================================
-
-.. toctree::
-
-   quickref.rst
-   general.rst
-   tutorial/index.rst
-   library/index.rst
-   hardware/index.rst
-   license.rst
-   contents.rst
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`

docs/library/esp.rst

@@ -0,0 +1,40 @@
+:mod:`esp` --- functions related to the ESP8266
+===============================================
+
+.. module:: esp
+    :synopsis: functions related to the ESP8266
+
+The ``esp`` module contains specific functions related to the ESP8266 module.
+
+
+Functions
+---------
+
+.. function:: status()
+
+    Return the current status of the wireless connection.
+
+    The possible statuses are defined as constants:
+
+        * ``STAT_IDLE`` -- no connection and no activity,
+        * ``STAT_CONNECTING`` -- connecting in progress,
+        * ``STAT_WRONG_PASSWORD`` -- failed due to incorrect password,
+        * ``STAT_NO_AP_FOUND`` -- failed because no access point replied,
+        * ``STAT_CONNECT_FAIL`` -- failed due to other problems,
+        * ``STAT_GOT_IP`` -- connection susccessful.
+
+.. function:: getaddrinfo((hostname, port, lambda))
+
+    Initiate resolving of the given hostname.
+
+    When the hostname is resolved, the provided ``lambda`` callback will be
+    called with two arguments, first being the hostname being resolved,
+    second a tuple with information about that hostname.
+
+Classes
+-------
+
+.. toctree::
+    :maxdepth: 1
+
+    esp.socket.rst

docs/library/esp.socket.rst

@@ -0,0 +1,82 @@
+class socket -- network socket
+==============================
+
+``socket`` is an object that represents a network socket. Example usage::
+
+    socket = esp.socket()
+    socket.onrecv(print)
+    socket.connect(('207.58.139.247', 80))
+    socket.send('GET /testwifi/index.html HTTP/1.0\r\n\r\n')
+
+Constructors
+------------
+
+.. class:: esp.socket()
+
+    Create and return a socket object.
+
+
+TCP Methods
+-----------
+
+.. method:: socket.connect(addr)
+
+    Connect to the adress and port specified in the ``addr`` tuple.
+
+.. method:: socket.close()
+
+    Close the connection.
+
+.. method:: socket.accept()
+
+    Accept a single connection from the connection queue.
+
+.. method:: socket.listen(backlog)
+
+    Start listening for incoming connections.
+
+    Note: Only one socket can be listening for connections at a time.
+
+.. method:: socket.bind(addr)
+
+    Bind the socket to the address and port specified by the ``addr`` tuple.
+
+.. method:: socket.send(buf)
+
+    Send the bytes from ``buf``.
+
+.. method:: socket.recv()
+
+    Receive and return bytes from the socket.
+
+
+UDP Methods
+-----------
+
+.. method:: socket.sendto(data, addr)
+
+    Placeholder for UDP support, not implemented yet.
+
+.. method:: socket.recvfrom(addr)
+
+    Placeholder for UDP support, not implemented yet.
+
+
+Callback Setter Methods
+-----------------------
+
+.. method:: onconnect(lambda)::
+
+    When connection is established, call the callback ``lambda``.
+
+.. method:: onrecv(lambda)::
+
+    When data is received, call the callback ``lambda``.
+
+.. method:: onsent(lamda)::
+
+    What data is finished sending, call the callback ``lambda``.
+
+.. method:: ondisconnect(lambda)::
+
+    Call the callback ``lambda`` when the connection is closed.

docs/library/index.rst

@@ -1,7 +1,7 @@
-Micro Python libraries
-======================
+MicroPython libraries
+=====================
 
-Functionality specific to the Micro Python implementation is available in
+Functionality specific to the MicroPython implementation is available in
 the following library.
 
 .. toctree::
@@ -12,28 +12,41 @@ the following library.
 Python standard libraries
 -------------------------
 
-The following standard Python libraries are built in to Micro Python.
+The following standard Python libraries are built in to MicroPython.
 
 For additional libraries, please download them from the `micropython-lib repository
 <https://github.com/micropython/micropython-lib>`_.
 
-.. toctree::
-   :maxdepth: 1
+.. only:: port_pyboard
 
-   cmath.rst
-   gc.rst
-   math.rst
-   os.rst
-   select.rst
-   struct.rst
-   sys.rst
-   time.rst
+    .. toctree::
+       :maxdepth: 1
+    
+       cmath.rst
+       gc.rst
+       math.rst
+       os.rst
+       select.rst
+       struct.rst
+       sys.rst
+       time.rst
+
+.. only:: port_wipy
+
+    .. toctree::
+       :maxdepth: 1
+    
+       gc.rst
+       os.rst
+       select.rst
+       sys.rst
+       time.rst
 
 Python micro-libraries
 ----------------------
 
 The following standard Python libraries have been "micro-ified" to fit in with
-the philosophy of Micro Python.  They provide the core functionality of that
+the philosophy of MicroPython.  They provide the core functionality of that
 module and are intended to be a drop-in replacement for the standard Python
 library.
 
@@ -43,25 +56,69 @@ For example, ``import json`` will first search for a file ``json.py`` or
 directory ``json`` and load that package if it is found.  If nothing is found,
 it will fallback to loading the built-in ``ujson`` module.
 
-.. toctree::
-   :maxdepth: 1
+.. only:: port_pyboard
 
-   ubinascii.rst
-   uctypes.rst
-   uhashlib.rst
-   uheapq.rst
-   ujson.rst
-   ure.rst
-   usocket.rst
-   uzlib.rst
+   .. toctree::
+      :maxdepth: 1
+    
+      ubinascii.rst
+      uctypes.rst
+      uhashlib.rst
+      uheapq.rst
+      ujson.rst
+      ure.rst
+      usocket.rst
+      uzlib.rst
 
-Libraries specific to the pyboard
----------------------------------
+.. only:: port_pyboard
 
-The following libraries are specific to the pyboard.
+   Libraries specific to the pyboard
+   ---------------------------------
+    
+   The following libraries are specific to the pyboard.
+    
+   .. toctree::
+      :maxdepth: 2
+    
+      pyb.rst
+      network.rst
 
-.. toctree::
-   :maxdepth: 2
+.. only:: port_wipy
 
-   pyb.rst
-   network.rst
+   .. toctree::
+      :maxdepth: 1
+    
+      ubinascii.rst
+      uhashlib.rst
+      uheapq.rst
+      ujson.rst
+      ure.rst
+      usocket.rst
+
+.. only:: port_wipy
+
+   Libraries specific to the WiPy
+   ---------------------------------
+
+   The following libraries are specific to the WiPy.
+
+   .. toctree::
+      :maxdepth: 2
+
+      pyb.rst
+      network.rst
+
+
+.. only:: port_esp8266
+
+   Libraries specific to the ESP8266
+   ---------------------------------
+
+   The following libraries are specific to the ESP8266.
+
+   .. toctree::
+      :maxdepth: 2
+
+      pyb.rst
+      esp.rst
+      network.rst

docs/library/micropython.rst

@@ -1,29 +1,31 @@
-:mod:`micropython` -- access and control Micro Python internals
-===============================================================
+:mod:`micropython` -- access and control MicroPython internals
+==============================================================
 
 .. module:: micropython
-   :synopsis: access and control Micro Python internals
+   :synopsis: access and control MicroPython internals
 
 Functions
 ---------
 
-.. function:: mem_info([verbose])
+.. only:: port_pyboard or port_unix
 
-   Print information about currently used memory.  If the ``verbose`` argument
-   is given then extra information is printed.
-
-   The information that is printed is implementation dependent, but currently
-   includes the amount of stack and heap used.  In verbose mode it prints out
-   the entire heap indicating which blocks are used and which are free.
-
-.. function:: qstr_info([verbose])
-
-   Print information about currently interned strings.  If the ``verbose``
-   argument is given then extra information is printed.
-
-   The information that is printed is implementation dependent, but currently
-   includes the number of interned strings and the amount of RAM they use.  In
-   verbose mode it prints out the names of all RAM-interned strings.
+    .. function:: mem_info([verbose])
+    
+       Print information about currently used memory.  If the ``verbose`` argument
+       is given then extra information is printed.
+    
+       The information that is printed is implementation dependent, but currently
+       includes the amount of stack and heap used.  In verbose mode it prints out
+       the entire heap indicating which blocks are used and which are free.
+    
+    .. function:: qstr_info([verbose])
+    
+       Print information about currently interned strings.  If the ``verbose``
+       argument is given then extra information is printed.
+    
+       The information that is printed is implementation dependent, but currently
+       includes the number of interned strings and the amount of RAM they use.  In
+       verbose mode it prints out the names of all RAM-interned strings.
 
 .. function:: alloc_emergency_exception_buf(size)