circuitpython/esp8266/esp_mphal.c

100 lines
2.6 KiB
C
Raw Normal View History

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Damien P. George
*
* 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 <stdio.h>
#include "ets_sys.h"
#include "etshal.h"
#include "uart.h"
#include "esp_mphal.h"
extern void ets_wdt_disable(void);
extern void wdt_feed(void);
extern void ets_delay_us();
void mp_hal_init(void) {
ets_wdt_disable(); // it's a pain while developing
uart_init(UART_BIT_RATE_115200, UART_BIT_RATE_115200);
}
void mp_hal_feed_watchdog(void) {
//ets_wdt_disable(); // it's a pain while developing
//WRITE_PERI_REG(0x60000914, 0x73);
//wdt_feed(); // might also work
}
void mp_hal_udelay(uint32_t us) {
ets_delay_us(us);
}
int mp_hal_stdin_rx_chr(void) {
for (;;) {
int c = uart0_rx();
if (c != -1) {
return c;
}
mp_hal_udelay(1);
mp_hal_feed_watchdog();
}
}
void mp_hal_stdout_tx_str(const char *str) {
while (*str) {
uart_tx_one_char(UART0, *str++);
}
}
void mp_hal_stdout_tx_strn(const char *str, uint32_t len) {
while (len--) {
uart_tx_one_char(UART0, *str++);
}
}
void mp_hal_stdout_tx_strn_cooked(const char *str, uint32_t len) {
while (len--) {
if (*str == '\n') {
uart_tx_one_char(UART0, '\r');
}
uart_tx_one_char(UART0, *str++);
}
}
uint32_t HAL_GetTick(void) {
// TODO
return 0;
}
void HAL_Delay(uint32_t Delay) {
mp_hal_udelay(Delay * 1000);
}
void mp_hal_set_interrupt_char(int c) {
// TODO
}
uint32_t mp_hal_get_cpu_freq(void) {
return ets_get_cpu_frequency();
}