circuitpython/ports/teensy/teensy_hal.c

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#include <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/stream.h"
#include "py/mphal.h"
#include "usb.h"
#include "uart.h"
#include "Arduino.h"
mp_uint_t mp_hal_ticks_ms(void) {
return millis();
}
void mp_hal_delay_ms(mp_uint_t ms) {
delay(ms);
}
void mp_hal_set_interrupt_char(int c) {
// The teensy 3.1 usb stack doesn't currently have the notion of generating
// an exception when a certain character is received. That just means that
// you can't press Control-C and get your python script to stop.
}
uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags) {
uintptr_t ret = 0;
if (poll_flags & MP_STREAM_POLL_RD) {
if (usb_vcp_rx_num()) {
ret |= MP_STREAM_POLL_RD;
}
if (MP_STATE_PORT(pyb_stdio_uart) != NULL && uart_rx_any(MP_STATE_PORT(pyb_stdio_uart))) {
ret |= MP_STREAM_POLL_RD;
}
}
return ret;
}
int mp_hal_stdin_rx_chr(void) {
for (;;) {
byte c;
if (usb_vcp_recv_byte(&c) != 0) {
return c;
} else 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));
}
__WFI();
}
}
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) {
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
uart_tx_strn(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn(str, len);
}
}
void mp_hal_stdout_tx_strn_cooked(const char *str, size_t len) {
// send stdout to UART and USB CDC VCP
if (MP_STATE_PORT(pyb_stdio_uart) != NULL) {
void uart_tx_strn_cooked(pyb_uart_obj_t *uart_obj, const char *str, uint len);
uart_tx_strn_cooked(MP_STATE_PORT(pyb_stdio_uart), str, len);
}
if (usb_vcp_is_enabled()) {
usb_vcp_send_strn_cooked(str, len);
}
}
void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio) {
}
void extint_register_pin(const void *pin, uint32_t mode, int hard_irq, mp_obj_t callback_obj) {
mp_raise_NotImplementedError(NULL);
}
MP_REGISTER_ROOT_POINTER(struct _pyb_uart_obj_t *pyb_stdio_uart);