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/* Copyright 2021
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "uart.h"
#include "quantum.h"
static SerialConfig serialConfig = {SERIAL_DEFAULT_BITRATE, SD1_CR1, SD1_CR2, SD1_CR3};
void uart_init(uint32_t baud) {
static bool is_initialised = false;
if (!is_initialised) {
is_initialised = true;
serialConfig.speed = baud;
#if defined(USE_GPIOV1)
palSetLineMode(SD1_TX_PIN, PAL_MODE_ALTERNATE_OPENDRAIN);
palSetLineMode(SD1_RX_PIN, PAL_MODE_ALTERNATE_OPENDRAIN);
#else
palSetLineMode(SD1_TX_PIN, PAL_MODE_ALTERNATE(SD1_TX_PAL_MODE) | PAL_MODE_OUTPUT_OPENDRAIN);
palSetLineMode(SD1_RX_PIN, PAL_MODE_ALTERNATE(SD1_RX_PAL_MODE) | PAL_MODE_OUTPUT_OPENDRAIN);
#endif
sdStart(&SERIAL_DRIVER, &serialConfig);
}
}
void uart_putchar(uint8_t c) { sdPut(&SERIAL_DRIVER, c); }
uint8_t uart_getchar(void) {
msg_t res = sdGet(&SERIAL_DRIVER);
return (uint8_t)res;
}
bool uart_available(void) { return !sdGetWouldBlock(&SERIAL_DRIVER); }
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