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Add Full-duplex serial driver for ARM boards (#9842)

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Stefan Kerkmann 2021-05-27 05:37:54 +02:00 • committed by GitHub
parent a78964c918
commit d9610120de
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4 changed files with 506 additions and 56 deletions
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69
drivers/chibios/serial_usart.c
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@ -1,13 +1,20 @@
#include "quantum.h"
#include "serial.h"
#include "print.h"
/* Copyright 2021 QMK
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <ch.h>
#include <hal.h>
#ifndef USART_CR1_M0
# define USART_CR1_M0 USART_CR1_M // some platforms (f1xx) dont have this so
#endif
#include "serial_usart.h"
#ifndef USE_GPIOV1
// The default PAL alternate modes are used to signal that the pins are used for USART
@ -20,50 +27,10 @@
# define SERIAL_USART_DRIVER SD1
#endif
#ifndef SERIAL_USART_CR1
# define SERIAL_USART_CR1 (USART_CR1_PCE | USART_CR1_PS | USART_CR1_M0) // parity enable, odd parity, 9 bit length
#endif
#ifndef SERIAL_USART_CR2
# define SERIAL_USART_CR2 (USART_CR2_STOP_1) // 2 stop bits
#endif
#ifndef SERIAL_USART_CR3
# define SERIAL_USART_CR3 0
#endif
#ifdef SOFT_SERIAL_PIN
# define SERIAL_USART_TX_PIN SOFT_SERIAL_PIN
#endif
#ifndef SELECT_SOFT_SERIAL_SPEED
# define SELECT_SOFT_SERIAL_SPEED 1
#endif
#ifdef SERIAL_USART_SPEED
// Allow advanced users to directly set SERIAL_USART_SPEED
#elif SELECT_SOFT_SERIAL_SPEED == 0
# define SERIAL_USART_SPEED 460800
#elif SELECT_SOFT_SERIAL_SPEED == 1
# define SERIAL_USART_SPEED 230400
#elif SELECT_SOFT_SERIAL_SPEED == 2
# define SERIAL_USART_SPEED 115200
#elif SELECT_SOFT_SERIAL_SPEED == 3
# define SERIAL_USART_SPEED 57600
#elif SELECT_SOFT_SERIAL_SPEED == 4
# define SERIAL_USART_SPEED 38400
#elif SELECT_SOFT_SERIAL_SPEED == 5
# define SERIAL_USART_SPEED 19200
#else
# error invalid SELECT_SOFT_SERIAL_SPEED value
#endif
#ifndef SERIAL_USART_TIMEOUT
# define SERIAL_USART_TIMEOUT 100
#endif
#define HANDSHAKE_MAGIC 7
static inline msg_t sdWriteHalfDuplex(SerialDriver* driver, uint8_t* data, uint8_t size) {
msg_t ret = sdWrite(driver, data, size);
@ -123,6 +90,10 @@ __attribute__((weak)) void usart_init(void) {
#else
palSetLineMode(SERIAL_USART_TX_PIN, PAL_MODE_ALTERNATE(SERIAL_USART_TX_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
#endif
#if defined(USART_REMAP)
USART_REMAP;
#endif
}
void usart_master_init(void) {