From 30b46fad5764b54ab4d47e9c4024f8030e1bf1a7 Mon Sep 17 00:00:00 2001 From: Ryan Date: Wed, 27 Jan 2021 17:42:49 +1100 Subject: UART driver refactor (#11637) --- drivers/chibios/uart.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 drivers/chibios/uart.c (limited to 'drivers/chibios/uart.c') diff --git a/drivers/chibios/uart.c b/drivers/chibios/uart.c new file mode 100644 index 0000000000..6e94899b9d --- /dev/null +++ b/drivers/chibios/uart.c @@ -0,0 +1,59 @@ +/* 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 . + */ + +#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_STM32_ALTERNATE_OPENDRAIN); + palSetLineMode(SD1_RX_PIN, PAL_MODE_STM32_ALTERNATE_OPENDRAIN); +#else + palSetLineMode(SD1_TX_PIN, PAL_MODE_ALTERNATE(SD1_TX_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN); + palSetLineMode(SD1_RX_PIN, PAL_MODE_ALTERNATE(SD1_RX_PAL_MODE) | PAL_STM32_OTYPE_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); +} -- cgit v1.2.3