drashna/qmk_firmware
1
0
Fork 0
Code Activity Actions

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

Browse source
This commit is contained in:
Stefan Kerkmann 2021-05-27 05:37:54 +02:00 • committed by GitHub
parent a78964c918
commit d9610120de
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 506 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

78
drivers/chibios/serial_usart.h Normal file
View file

@ -0,0 +1,78 @@
/* 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/>.
*/
#pragma once
#include "quantum.h"
#include "serial.h"
#include "printf.h"
#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
#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
#if defined(USART1_REMAP)
# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART1_REMAP); } while(0)
#elif defined(USART2_REMAP)
# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART2_REMAP); } while(0)
#elif defined(USART3_PARTIALREMAP)
# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_PARTIALREMAP); } while(0)
#elif defined(USART3_FULLREMAP)
# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_FULLREMAP); } while(0)
#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