circuitpython/ports/pic16bit/pic16bit_mphal.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 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 <string.h>
#include "py/stream.h"
#include "py/mphal.h"
#include "board.h"
static int interrupt_char;
void mp_hal_init(void) {
MP_STATE_PORT(keyboard_interrupt_obj) = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
}
mp_uint_t mp_hal_ticks_ms(void) {
// TODO
return 0;
}
void mp_hal_delay_ms(mp_uint_t ms) {
// tuned for fixed CPU frequency
for (int i = ms; i > 0; i--) {
for (volatile int j = 0; j < 5000; j++) {
}
}
}
void mp_hal_set_interrupt_char(int c) {
interrupt_char = c;
}
uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
uintptr_t ret = 0;
if ((poll_flags & MP_STREAM_POLL_RD) && uart_rx_any()) {
ret |= MP_STREAM_POLL_RD;
}
if (poll_flags & MP_STREAM_POLL_WR) {
ret |= MP_STREAM_POLL_WR;
}
return ret;
}
int mp_hal_stdin_rx_chr(void) {
for (;;) {
if (uart_rx_any()) {
return uart_rx_char();
}
}
}
void mp_hal_stdout_tx_str(const char *str) {
mp_hal_stdout_tx_strn(str, strlen(str));
}
void mp_hal_stdout_tx_strn(const char *str, size_t len) {
for (; len > 0; --len) {
uart_tx_char(*str++);
}
}
void mp_hal_stdout_tx_strn_cooked(const char *str, size_t len) {
for (; len > 0; --len) {
if (*str == '\n') {
uart_tx_char('\r');
}
uart_tx_char(*str++);
}
}
MP_REGISTER_ROOT_POINTER(mp_obj_t keyboard_interrupt_obj);