forked from forks/qmk_firmware
61fa6949fb
* onekey: stm32f3_disco: add usart pins and activate peripheral Signed-off-by: Stefan Kerkmann <karlk90@pm.me> * chibios: uart: change SD1 prefix to UART Signed-off-by: Stefan Kerkmann <karlk90@pm.me> * chibios: uart: add SIO driver and RP2040 compatibility Signed-off-by: Stefan Kerkmann <karlk90@pm.me> Co-authored-by: Sergey Vlasov <sigprof@gmail.com> * Update platforms/chibios/drivers/uart.h Co-authored-by: Joel Challis <git@zvecr.com> --------- Signed-off-by: Stefan Kerkmann <karlk90@pm.me> Co-authored-by: Sergey Vlasov <sigprof@gmail.com> Co-authored-by: Joel Challis <git@zvecr.com>
201 lines
4.2 KiB
C
201 lines
4.2 KiB
C
// Copyright 2024 Stefan Kerkmann
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// Copyright 2021 QMK
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// Copyright 2024 Stefan Kerkmann
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <hal.h>
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#include "gpio.h"
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#include "chibios_config.h"
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// ======== DEPRECATED DEFINES - DO NOT USE ========
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#ifdef SERIAL_DRIVER
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# define UART_DRIVER SERIAL_DRIVER
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#endif
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#ifdef SD1_TX_PIN
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# define UART_TX_PIN SD1_TX_PIN
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#endif
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#ifdef SD1_RX_PIN
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# define UART_RX_PIN SD1_RX_PIN
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#endif
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#ifdef SD1_CTS_PIN
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# define UART_CTS_PIN SD1_CTS_PIN
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#endif
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#ifdef SD1_RTS_PIN
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# define UART_RTS_PIN SD1_RTS_PIN
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#endif
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#ifdef SD1_TX_PAL_MODE
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# define UART_TX_PAL_MODE SD1_TX_PAL_MODE
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#endif
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#ifdef SD1_RX_PAL_MODE
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# define UART_RX_PAL_MODE SD1_RX_PAL_MODE
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#endif
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#ifdef SD1_CTS_PAL_MODE
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# define UART_RTS_PAL_MODE SD1_CTS_PAL_MODE
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#endif
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#ifdef SD1_RTS_PAL_MODE
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# define UART_TX_PAL_MODE SD1_RTS_PAL_MODE
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#endif
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#ifdef SD1_CR1
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# define UART_CR1 SD1_CR1
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#endif
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#ifdef SD1_CR2
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# define UART_CR2 SD1_CR2
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#endif
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#ifdef SD1_CR3
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# define UART_CR3 SD1_CR3
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#endif
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#ifdef SD1_WRDLEN
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# define UART_WRDLEN SD1_WRDLEN
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#endif
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#ifdef SD1_STPBIT
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# define UART_STPBIT SD1_STPBIT
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#endif
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#ifdef SD1_PARITY
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# define UART_PARITY SD1_PARITY
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#endif
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#ifdef SD1_ATFLCT
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# define UART_ATFLCT SD1_ATFLCT
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#endif
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// ========
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#ifndef UART_DRIVER
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# if (HAL_USE_SERIAL == TRUE)
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# define UART_DRIVER SD1
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# elif (HAL_USE_SIO == TRUE)
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# define UART_DRIVER SIOD1
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# endif
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#endif
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#ifndef UART_TX_PIN
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# define UART_TX_PIN A9
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#endif
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#ifndef UART_RX_PIN
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# define UART_RX_PIN A10
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#endif
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#ifndef UART_CTS_PIN
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# define UART_CTS_PIN A11
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#endif
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#ifndef UART_RTS_PIN
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# define UART_RTS_PIN A12
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#endif
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#ifdef USE_GPIOV1
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# ifndef UART_TX_PAL_MODE
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# define UART_TX_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL
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# endif
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# ifndef UART_RX_PAL_MODE
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# define UART_RX_PAL_MODE PAL_MODE_INPUT
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# endif
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# ifndef UART_CTS_PAL_MODE
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# define UART_CTS_PAL_MODE PAL_MODE_INPUT
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# endif
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# ifndef UART_RTS_PAL_MODE
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# define UART_RTS_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL
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# endif
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#else
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# ifndef UART_TX_PAL_MODE
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# define UART_TX_PAL_MODE 7
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# endif
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# ifndef UART_RX_PAL_MODE
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# define UART_RX_PAL_MODE 7
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# endif
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# ifndef UART_CTS_PAL_MODE
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# define UART_CTS_PAL_MODE 7
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# endif
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# ifndef UART_RTS_PAL_MODE
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# define UART_RTS_PAL_MODE 7
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# endif
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#endif
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#ifndef UART_CR1
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# define UART_CR1 0
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#endif
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#ifndef UART_CR2
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# define UART_CR2 0
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#endif
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#ifndef UART_CR3
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# define UART_CR3 0
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#endif
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#ifndef UART_WRDLEN
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# define UART_WRDLEN 3
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#endif
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#ifndef UART_STPBIT
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# define UART_STPBIT 0
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#endif
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#ifndef UART_PARITY
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# define UART_PARITY 0
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#endif
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#ifndef UART_ATFLCT
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# define UART_ATFLCT 0
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#endif
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/**
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* @brief Initialize the UART driver. This function must be called only once,
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* before any of the below functions can be called.
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*
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* @param baud The baud rate to transmit and receive at. This may depend on the
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* device you are communicating with. Common values are 1200, 2400, 4800, 9600,
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* 19200, 38400, 57600, and 115200.
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*/
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void uart_init(uint32_t baud);
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/**
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* @brief Transmit a single byte.
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*
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* @param data The byte to transmit.
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*/
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void uart_write(uint8_t data);
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/**
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* @brief Receive a single byte.
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*
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* @return uint8_t The byte read from the receive buffer. This function will
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* block if the buffer is empty (ie. no data to read).
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*/
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uint8_t uart_read(void);
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/**
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* @brief Transmit multiple bytes.
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*
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* @param data A pointer to the data to write from.
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* @param length The number of bytes to write. Take care not to overrun the
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* length of `data`.
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*/
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void uart_transmit(const uint8_t *data, uint16_t length);
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/**
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* @brief Receive multiple bytes.
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*
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* @param data A pointer to the buffer to read into.
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* @param length The number of bytes to read. Take care not to overrun the
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* length of `data`.
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*/
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void uart_receive(uint8_t *data, uint16_t length);
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/**
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* @brief Return whether the receive buffer contains data. Call this function
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* to determine if `uart_read()` will return data immediately.
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*
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* @return true If there is data available to read.
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* @return false If there is no data available to read.
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*/
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bool uart_available(void);
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