kopia lustrzana https://github.com/micropython/micropython
235 wiersze
6.6 KiB
C
235 wiersze
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) 2015 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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#include <string.h>
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#include "py/mpstate.h"
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#include "py/mphal.h"
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#include "py/mperrno.h"
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#include "py/runtime.h"
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#include "py/stream.h"
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#include "uart.h"
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#include "nrfx_errors.h"
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#include "nrfx_config.h"
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// this table converts from HAL_StatusTypeDef to POSIX errno
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const byte mp_hal_status_to_errno_table[4] = {
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[HAL_OK] = 0,
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[HAL_ERROR] = MP_EIO,
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[HAL_BUSY] = MP_EBUSY,
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[HAL_TIMEOUT] = MP_ETIMEDOUT,
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};
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NORETURN void mp_hal_raise(HAL_StatusTypeDef status) {
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mp_raise_OSError(mp_hal_status_to_errno_table[status]);
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}
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#if !MICROPY_KBD_EXCEPTION
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void mp_hal_set_interrupt_char(int c) {
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}
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#endif
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#if !MICROPY_PY_BLE_NUS
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uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
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uintptr_t ret = 0;
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if ((poll_flags & MP_STREAM_POLL_RD) && MP_STATE_PORT(board_stdio_uart) != NULL
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&& uart_rx_any(MP_STATE_PORT(board_stdio_uart))) {
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ret |= MP_STREAM_POLL_RD;
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}
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return ret;
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}
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#endif
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#if !MICROPY_PY_BLE_NUS && !MICROPY_HW_USB_CDC
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int mp_hal_stdin_rx_chr(void) {
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for (;;) {
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if (MP_STATE_PORT(board_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(board_stdio_uart))) {
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return uart_rx_char(MP_STATE_PORT(board_stdio_uart));
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}
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__WFI();
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}
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return 0;
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}
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void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
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if (MP_STATE_PORT(board_stdio_uart) != NULL) {
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uart_tx_strn(MP_STATE_PORT(board_stdio_uart), str, len);
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}
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}
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void mp_hal_stdout_tx_strn_cooked(const char *str, mp_uint_t len) {
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if (MP_STATE_PORT(board_stdio_uart) != NULL) {
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uart_tx_strn_cooked(MP_STATE_PORT(board_stdio_uart), str, len);
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}
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}
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#endif
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void mp_hal_stdout_tx_str(const char *str) {
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mp_hal_stdout_tx_strn(str, strlen(str));
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}
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void mp_hal_delay_us(mp_uint_t us)
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{
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if (us == 0) {
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return;
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}
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register uint32_t delay __ASM ("r0") = us;
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__ASM volatile (
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#ifdef NRF51
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".syntax unified\n"
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#endif
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"1:\n"
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" SUBS %0, %0, #1\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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#if defined(NRF52) || defined(NRF9160_XXAA)
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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" NOP\n"
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#endif
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" BNE 1b\n"
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: "+r" (delay));
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}
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void mp_hal_delay_ms(mp_uint_t ms)
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{
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for (mp_uint_t i = 0; i < ms; i++)
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{
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mp_hal_delay_us(999);
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}
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}
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#if defined(NRFX_LOG_ENABLED) && (NRFX_LOG_ENABLED == 1)
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static const char nrfx_error_unknown[1] = "";
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static const char nrfx_error_success[] = "NRFX_SUCCESS";
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static const char nrfx_error_internal[] = "NRFX_ERROR_INTERNAL";
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static const char nrfx_error_no_mem[] = "NRFX_ERROR_NO_MEM";
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static const char nrfx_error_not_supported[] = "NRFX_ERROR_NOT_SUPPORTED";
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static const char nrfx_error_invalid_param[] = "NRFX_ERROR_INVALID_PARAM";
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static const char nrfx_error_invalid_state[] = "NRFX_ERROR_INVALID_STATE";
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static const char nrfx_error_invalid_length[] = "NRFX_ERROR_INVALID_LENGTH";
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static const char nrfx_error_timeout[] = "NRFX_ERROR_TIMEOUT";
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static const char nrfx_error_forbidden[] = "NRFX_ERROR_FORBIDDEN";
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static const char nrfx_error_null[] = "NRFX_ERROR_NULL";
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static const char nrfx_error_invalid_addr[] = "NRFX_ERROR_INVALID_ADDR";
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static const char nrfx_error_busy[] = "NRFX_ERROR_BUSY";
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static const char nrfx_error_already_initalized[] = "NRFX_ERROR_ALREADY_INITIALIZED";
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static const char * nrfx_error_strings[13] = {
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nrfx_error_success,
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nrfx_error_internal,
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nrfx_error_no_mem,
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nrfx_error_not_supported,
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nrfx_error_invalid_param,
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nrfx_error_invalid_state,
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nrfx_error_invalid_length,
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nrfx_error_timeout,
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nrfx_error_forbidden,
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nrfx_error_null,
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nrfx_error_invalid_addr,
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nrfx_error_busy,
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nrfx_error_already_initalized
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};
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static const char nrfx_drv_error_twi_err_overrun[] = "NRFX_ERROR_DRV_TWI_ERR_OVERRUN";
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static const char nrfx_drv_error_twi_err_anack[] = "NRFX_ERROR_DRV_TWI_ERR_ANACK";
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static const char nrfx_drv_error_twi_err_dnack[] = "NRFX_ERROR_DRV_TWI_ERR_DNACK";
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static const char * nrfx_drv_error_strings[3] = {
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nrfx_drv_error_twi_err_overrun,
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nrfx_drv_error_twi_err_anack,
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nrfx_drv_error_twi_err_dnack
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};
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const char * nrfx_error_code_lookup(uint32_t err_code) {
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if (err_code >= NRFX_ERROR_BASE_NUM && err_code <= NRFX_ERROR_BASE_NUM + 13) {
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return nrfx_error_strings[err_code - NRFX_ERROR_BASE_NUM];
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} else if (err_code >= NRFX_ERROR_DRIVERS_BASE_NUM && err_code <= NRFX_ERROR_DRIVERS_BASE_NUM + 3) {
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return nrfx_drv_error_strings[err_code - NRFX_ERROR_DRIVERS_BASE_NUM];
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}
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return nrfx_error_unknown;
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}
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#endif // NRFX_LOG_ENABLED
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