circuitpython/ports/renesas-ra/mphalport.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Damien P. George
* Copyright (c) 2021,2022 Renesas Electronics Corporation
*
* 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 <string.h>
#include "py/runtime.h"
#include "py/stream.h"
#include "py/mperrno.h"
#include "py/mphal.h"
#include "extmod/misc.h"
#include "uart.h"
// this table converts from HAL_StatusTypeDef to POSIX errno
const byte mp_hal_status_to_errno_table[4] = {
[HAL_OK] = 0,
[HAL_ERROR] = MP_EIO,
[HAL_BUSY] = MP_EBUSY,
[HAL_TIMEOUT] = MP_ETIMEDOUT,
};
NORETURN void mp_hal_raise(HAL_StatusTypeDef status) {
mp_raise_OSError(mp_hal_status_to_errno_table[status]);
}
MP_WEAK uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
uintptr_t ret = 0;
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
mp_obj_t pyb_stdio_uart = MP_OBJ_FROM_PTR(MP_STATE_PORT(pyb_stdio_uart));
int errcode;
const mp_stream_p_t *stream_p = mp_get_stream(pyb_stdio_uart);
ret = stream_p->ioctl(pyb_stdio_uart, MP_STREAM_POLL, poll_flags, &errcode);
}
return ret | mp_uos_dupterm_poll(poll_flags);
}
#if MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE
void flash_cache_commit(void);
#endif
MP_WEAK int mp_hal_stdin_rx_chr(void) {
for (;;) {
#if MICROPY_HW_ENABLE_INTERNAL_FLASH_STORAGE
flash_cache_commit();
#endif
if (MP_STATE_PORT(pyb_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(pyb_stdio_uart))) {
return uart_rx_char(MP_STATE_PORT(pyb_stdio_uart));
}
int dupterm_c = mp_uos_dupterm_rx_chr();
if (dupterm_c >= 0) {
return dupterm_c;
}
MICROPY_EVENT_POLL_HOOK
}
}
MP_WEAK void mp_hal_stdout_tx_strn(const char *str, size_t len) {
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
mp_uos_dupterm_tx_strn(str, len);
}
void mp_hal_ticks_cpu_enable(void) {
}
void mp_hal_pin_config(mp_hal_pin_obj_t pin_obj, uint32_t mode, uint32_t pull, uint32_t drive, uint32_t alt) {
ra_gpio_config(pin_obj->pin, mode, pull, drive, alt);
}
/*******************************************************************************/
// MAC address
// Generate a random locally administered MAC address (LAA)
void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]) {
uint8_t *id = (uint8_t *)MP_HAL_UNIQUE_ID_ADDRESS;
buf[0] = 0x02; // LAA range
buf[1] = (id[11] << 4) | (id[10] & 0xf);
buf[2] = (id[9] << 4) | (id[8] & 0xf);
buf[3] = (id[7] << 4) | (id[6] & 0xf);
buf[4] = id[2];
buf[5] = (id[0] << 2) | idx;
}
// A board can override this if needed
MP_WEAK void mp_hal_get_mac(int idx, uint8_t buf[6]) {
mp_hal_generate_laa_mac(idx, buf);
}
void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest) {
static const char hexchr[16] = "0123456789ABCDEF";
uint8_t mac[6];
mp_hal_get_mac(idx, mac);
for (; chr_len; ++chr_off, --chr_len) {
*dest++ = hexchr[mac[chr_off >> 1] >> (4 * (1 - (chr_off & 1))) & 0xf];
}
}