mirror of
https://github.com/micropython/micropython.git
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195 lines
6.6 KiB
C
195 lines
6.6 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2024 OpenMV LLC.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/ringbuf.h"
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#include "shared/runtime/interrupt_char.h"
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#include "irq.h"
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#include "system_tick.h"
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#include ALIF_CMSIS_H
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#define MICROPY_BEGIN_ATOMIC_SECTION() disable_irq()
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#define MICROPY_END_ATOMIC_SECTION(state) enable_irq(state)
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// For regular code that wants to prevent "background tasks" from running.
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// These background tasks (LWIP, Bluetooth) run in PENDSV context.
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#define MICROPY_PY_PENDSV_ENTER uint32_t atomic_state = raise_irq_pri(IRQ_PRI_PENDSV);
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#define MICROPY_PY_PENDSV_REENTER atomic_state = raise_irq_pri(IRQ_PRI_PENDSV);
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#define MICROPY_PY_PENDSV_EXIT restore_irq_pri(atomic_state);
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// Port level Wait-for-Event macro
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//
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// Do not use this macro directly, include py/runtime.h and
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// call mp_event_wait_indefinite() or mp_event_wait_ms(timeout)
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#define MICROPY_INTERNAL_WFE(TIMEOUT_MS) \
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do { \
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if ((TIMEOUT_MS) < 0) { \
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__WFE(); \
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} else { \
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system_tick_wfe_with_timeout_us(TIMEOUT_MS * 1000); \
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} \
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} while (0)
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// TODO requires mods to py/emitglue.c for this to be picked up
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#define MP_HAL_CLEAN_DCACHE(addr, size) \
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(SCB_CleanDCache_by_Addr((uint32_t *)((uint32_t)addr & ~0x1f), \
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((uint32_t)((uint8_t *)addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
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#define mp_hal_quiet_timing_enter() raise_irq_pri(IRQ_PRI_QUIET_TIMING)
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#define mp_hal_quiet_timing_exit(irq_state) restore_irq_pri(irq_state)
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#define mp_hal_delay_us_fast mp_hal_delay_us
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extern ringbuf_t stdin_ringbuf;
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/******************************************************************************/
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// C-level pin HAL
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#include "py/obj.h"
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#include "gpio.h"
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#include "pinconf.h"
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#define MP_HAL_PIN_FMT "%q"
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#define MP_HAL_PIN_MODE_INPUT (0)
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#define MP_HAL_PIN_MODE_OUTPUT (1)
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#define MP_HAL_PIN_MODE_OPEN_DRAIN (2)
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#define MP_HAL_PIN_MODE_ALT (3)
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#define MP_HAL_PIN_PULL_NONE (0)
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#define MP_HAL_PIN_PULL_UP (1)
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#define MP_HAL_PIN_PULL_DOWN (2)
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#define MP_HAL_PIN_DRIVE_2MA (PADCTRL_OUTPUT_DRIVE_STRENGTH_2MA)
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#define MP_HAL_PIN_DRIVE_4MA (PADCTRL_OUTPUT_DRIVE_STRENGTH_4MA)
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#define MP_HAL_PIN_DRIVE_8MA (PADCTRL_OUTPUT_DRIVE_STRENGTH_8MA)
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#define MP_HAL_PIN_DRIVE_12MA (PADCTRL_OUTPUT_DRIVE_STRENGTH_12MA)
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#define MP_HAL_PIN_SPEED_LOW (0)
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#define MP_HAL_PIN_SPEED_HIGH (PADCTRL_SLEW_RATE_FAST)
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#define mp_hal_pin_obj_t const machine_pin_obj_t *
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enum {
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MP_HAL_PIN_ALT_NONE = 0,
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MP_HAL_PIN_ALT_ANA,
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MP_HAL_PIN_ALT_AUDIO,
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MP_HAL_PIN_ALT_CAM,
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MP_HAL_PIN_ALT_CDC,
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MP_HAL_PIN_ALT_CMP,
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MP_HAL_PIN_ALT_ETH,
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MP_HAL_PIN_ALT_FAULT,
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MP_HAL_PIN_ALT_HFXO,
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MP_HAL_PIN_ALT_I2C,
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MP_HAL_PIN_ALT_I2S,
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MP_HAL_PIN_ALT_I3C,
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MP_HAL_PIN_ALT_JTAG,
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MP_HAL_PIN_ALT_LPCAM,
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MP_HAL_PIN_ALT_LPI2C,
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MP_HAL_PIN_ALT_LPI2S,
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MP_HAL_PIN_ALT_LPPDM,
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MP_HAL_PIN_ALT_LPSPI,
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MP_HAL_PIN_ALT_LPTMR,
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MP_HAL_PIN_ALT_LPUART,
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MP_HAL_PIN_ALT_OSPI,
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MP_HAL_PIN_ALT_PDM,
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MP_HAL_PIN_ALT_QEC,
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MP_HAL_PIN_ALT_SD,
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MP_HAL_PIN_ALT_SPI,
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MP_HAL_PIN_ALT_UART,
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MP_HAL_PIN_ALT_UT,
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};
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typedef struct _machine_pin_obj_t {
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mp_obj_base_t base;
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GPIO_Type *gpio;
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uint8_t port;
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uint8_t pin;
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uint8_t adc12_periph : 2;
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uint8_t adc12_channel : 3;
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qstr name;
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const uint8_t alt[8];
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} machine_pin_obj_t;
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mp_hal_pin_obj_t mp_hal_get_pin_obj(mp_obj_t pin_in);
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static inline qstr mp_hal_pin_name(mp_hal_pin_obj_t pin) {
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return pin->name;
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}
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static inline void mp_hal_pin_input(mp_hal_pin_obj_t pin) {
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uint8_t alt_func = PINMUX_ALTERNATE_FUNCTION_0;
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uint8_t pad_ctrl = PADCTRL_READ_ENABLE;
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pinconf_set(pin->port, pin->pin, alt_func, pad_ctrl);
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gpio_set_direction_input(pin->gpio, pin->pin);
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}
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static inline void mp_hal_pin_output(mp_hal_pin_obj_t pin) {
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uint8_t alt_func = PINMUX_ALTERNATE_FUNCTION_0;
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uint8_t pad_ctrl = PADCTRL_READ_ENABLE;
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pinconf_set(pin->port, pin->pin, alt_func, pad_ctrl);
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gpio_set_direction_output(pin->gpio, pin->pin);
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}
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static inline void mp_hal_pin_open_drain(mp_hal_pin_obj_t pin) {
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uint8_t alt_func = PINMUX_ALTERNATE_FUNCTION_0;
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uint8_t pad_ctrl = PADCTRL_DRIVER_OPEN_DRAIN | PADCTRL_READ_ENABLE;
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pinconf_set(pin->port, pin->pin, alt_func, pad_ctrl);
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gpio_set_direction_output(pin->gpio, pin->pin);
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}
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static inline void mp_hal_pin_low(mp_hal_pin_obj_t pin) {
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gpio_set_value_low(pin->gpio, pin->pin);
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}
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static inline void mp_hal_pin_high(mp_hal_pin_obj_t pin) {
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gpio_set_value_high(pin->gpio, pin->pin);
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}
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static inline int mp_hal_pin_read(mp_hal_pin_obj_t pin) {
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return gpio_get_value(pin->gpio, pin->pin);
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}
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static inline void mp_hal_pin_write(mp_hal_pin_obj_t pin, int v) {
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if (v) {
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mp_hal_pin_high(pin);
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} else {
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mp_hal_pin_low(pin);
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}
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}
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static inline void mp_hal_pin_od_low(mp_hal_pin_obj_t pin) {
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mp_hal_pin_low(pin);
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}
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static inline void mp_hal_pin_od_high(mp_hal_pin_obj_t pin) {
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mp_hal_pin_high(pin);
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}
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static inline void mp_hal_wake_main_task_from_isr(void) {
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// Defined for tinyusb support, nothing needs to be done here.
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}
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void mp_hal_pin_config(const machine_pin_obj_t *pin, uint32_t mode,
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uint32_t pull, uint32_t speed, uint32_t drive, uint32_t alt, bool ren);
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// Include all the pin definitions.
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#include "genhdr/pins_board.h"
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