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https://github.com/licsber/micropython.git
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82fe6b0526
This patch add basic building blocks for nrf9P60. It also includes a secure bootloader which forwards all possible peripherals that are user selectable to become non-secure. After configuring Flash, RAM and peripherals the secure bootloader will jump to the non-secure domain where MicroPython is placed. The minimum size of a secure boot has to be a flash block of 32Kb, hence why the linker scripts are offsetting the main application this much. The RAM offset is set to 128K, to allow for later integration of Nordic Semiconductor's BSD socket library which reserves the range 0x20010000 - 0x2001FFFF.
235 lines
6.6 KiB
C
235 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) 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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