Add Full-duplex serial driver for ARM boards (#9842)
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4 changed files with 506 additions and 56 deletions
78
drivers/chibios/serial_usart.h
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78
drivers/chibios/serial_usart.h
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/* Copyright 2021 QMK
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "quantum.h"
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#include "serial.h"
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#include "printf.h"
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#include <ch.h>
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#include <hal.h>
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#ifndef USART_CR1_M0
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# define USART_CR1_M0 USART_CR1_M // some platforms (f1xx) dont have this so
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#endif
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#ifndef SERIAL_USART_CR1
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# define SERIAL_USART_CR1 (USART_CR1_PCE | USART_CR1_PS | USART_CR1_M0) // parity enable, odd parity, 9 bit length
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#endif
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#ifndef SERIAL_USART_CR2
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# define SERIAL_USART_CR2 (USART_CR2_STOP_1) // 2 stop bits
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#endif
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#ifndef SERIAL_USART_CR3
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# define SERIAL_USART_CR3 0
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#endif
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#if defined(USART1_REMAP)
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# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART1_REMAP); } while(0)
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#elif defined(USART2_REMAP)
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# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART2_REMAP); } while(0)
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#elif defined(USART3_PARTIALREMAP)
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# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_PARTIALREMAP); } while(0)
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#elif defined(USART3_FULLREMAP)
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# define USART_REMAP do { (AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_FULLREMAP); } while(0)
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#endif
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#ifndef SELECT_SOFT_SERIAL_SPEED
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# define SELECT_SOFT_SERIAL_SPEED 1
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#endif
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#ifdef SERIAL_USART_SPEED
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// Allow advanced users to directly set SERIAL_USART_SPEED
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#elif SELECT_SOFT_SERIAL_SPEED == 0
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# define SERIAL_USART_SPEED 460800
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#elif SELECT_SOFT_SERIAL_SPEED == 1
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# define SERIAL_USART_SPEED 230400
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#elif SELECT_SOFT_SERIAL_SPEED == 2
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# define SERIAL_USART_SPEED 115200
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#elif SELECT_SOFT_SERIAL_SPEED == 3
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# define SERIAL_USART_SPEED 57600
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#elif SELECT_SOFT_SERIAL_SPEED == 4
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# define SERIAL_USART_SPEED 38400
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#elif SELECT_SOFT_SERIAL_SPEED == 5
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# define SERIAL_USART_SPEED 19200
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#else
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# error invalid SELECT_SOFT_SERIAL_SPEED value
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#endif
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#ifndef SERIAL_USART_TIMEOUT
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# define SERIAL_USART_TIMEOUT 100
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#endif
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#define HANDSHAKE_MAGIC 7
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