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https://github.com/micropython/micropython.git
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19075695da
Consolidate CDC, UART and NUS stdio interfaces into the one handler. Allows any/all of them to be enabled separately. Updates UART REPL to use similar define to other platforms: `MICROPY_HW_ENABLE_UART_REPL`. USB now uses the shared/tinyusb CDC implementation. Signed-off-by: Andrew Leech <andrew@alelec.net>
147 lines
4.5 KiB
C
147 lines
4.5 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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* Copyright (c) 2019 Glenn Ruben Bakke
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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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* This file is part of the TinyUSB stack.
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*/
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#include "py/mphal.h"
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#if MICROPY_HW_ENABLE_USBDEV && MICROPY_HW_USB_CDC
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#include "nrfx.h"
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#include "nrfx_power.h"
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#include "nrfx_uart.h"
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#include "py/ringbuf.h"
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#include "py/stream.h"
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#include "py/runtime.h"
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#include "shared/runtime/interrupt_char.h"
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#include "shared/tinyusb/mp_usbd.h"
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#include "shared/tinyusb/mp_usbd_cdc.h"
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#include "extmod/misc.h"
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#include <hal/nrf_ficr.h>
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#ifdef BLUETOOTH_SD
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#include "nrf_sdm.h"
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#include "nrf_soc.h"
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#include "ble_drv.h"
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#endif
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extern void tusb_hal_nrf_power_event(uint32_t event);
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static void board_init(void) {
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// Config clock source.
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#ifndef BLUETOOTH_SD
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NRF_CLOCK->LFCLKSRC = (uint32_t)((CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos) & CLOCK_LFCLKSRC_SRC_Msk);
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NRF_CLOCK->TASKS_LFCLKSTART = 1UL;
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#endif
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// Priorities 0, 1, 4 (nRF52) are reserved for SoftDevice
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// 2 is highest for application
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NRFX_IRQ_PRIORITY_SET(USBD_IRQn, 2);
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// USB power may already be ready at this time -> no event generated
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// We need to invoke the handler based on the status initially
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uint32_t usb_reg;
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#ifdef BLUETOOTH_SD
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uint8_t sd_en = false;
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sd_softdevice_is_enabled(&sd_en);
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if (sd_en) {
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sd_power_usbdetected_enable(true);
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sd_power_usbpwrrdy_enable(true);
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sd_power_usbremoved_enable(true);
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sd_power_usbregstatus_get(&usb_reg);
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} else
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#endif
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{
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// Power module init
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const nrfx_power_config_t pwr_cfg = { 0 };
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nrfx_power_init(&pwr_cfg);
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// Register tusb function as USB power handler
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const nrfx_power_usbevt_config_t config = { .handler = (nrfx_power_usb_event_handler_t) tusb_hal_nrf_power_event };
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nrfx_power_usbevt_init(&config);
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nrfx_power_usbevt_enable();
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usb_reg = NRF_POWER->USBREGSTATUS;
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}
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if (usb_reg & POWER_USBREGSTATUS_VBUSDETECT_Msk) {
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tusb_hal_nrf_power_event(NRFX_POWER_USB_EVT_DETECTED);
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}
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#ifndef BLUETOOTH_SD
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if (usb_reg & POWER_USBREGSTATUS_OUTPUTRDY_Msk) {
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tusb_hal_nrf_power_event(NRFX_POWER_USB_EVT_READY);
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}
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#endif
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}
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void mp_usbd_port_get_serial_number(char *serial_buf) {
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uint32_t deviceid[2];
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deviceid[0] = nrf_ficr_deviceid_get(NRF_FICR, 0);
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deviceid[1] = nrf_ficr_deviceid_get(NRF_FICR, 1);
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MP_STATIC_ASSERT(sizeof(deviceid) * 2 <= MICROPY_HW_USB_DESC_STR_MAX);
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mp_usbd_hex_str(serial_buf, (uint8_t *)deviceid, sizeof(deviceid));
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}
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int usb_cdc_init(void)
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{
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static bool initialized = false;
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if (!initialized) {
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#if BLUETOOTH_SD
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// Initialize the clock and BLE stack.
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ble_drv_stack_enable();
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#endif
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board_init();
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initialized = true;
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}
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mp_usbd_init();
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return 0;
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}
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#ifdef BLUETOOTH_SD
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// process SOC event from SD
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void usb_cdc_sd_event_handler(uint32_t soc_evt) {
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/*------------- usb power event handler -------------*/
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int32_t usbevt = (soc_evt == NRF_EVT_POWER_USB_DETECTED ) ? NRFX_POWER_USB_EVT_DETECTED:
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(soc_evt == NRF_EVT_POWER_USB_POWER_READY) ? NRFX_POWER_USB_EVT_READY :
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(soc_evt == NRF_EVT_POWER_USB_REMOVED ) ? NRFX_POWER_USB_EVT_REMOVED : -1;
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if (usbevt >= 0) {
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tusb_hal_nrf_power_event(usbevt);
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}
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}
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#endif
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void USBD_IRQHandler(void) {
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tud_int_handler(0);
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}
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#endif // MICROPY_HW_USB_CDC
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