mirror of
https://github.com/betaflight/betaflight.git
synced 2025-07-26 01:35:41 +03:00
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/*
|
|
* This file is part of Cleanflight.
|
|
*
|
|
* Cleanflight 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.
|
|
*
|
|
* Cleanflight 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
// Since serial ports can be used for any function these buffer sizes should be equal
|
|
// The two largest things that need to be sent are: 1, MSP responses, 2, UBLOX SVINFO packet.
|
|
|
|
// Size must be a power of two due to various optimizations which use 'and' instead of 'mod'
|
|
// Various serial routines return the buffer occupied size as uint8_t which would need to be extended in order to
|
|
// increase size further.
|
|
#define UART1_RX_BUFFER_SIZE 256
|
|
#define UART1_TX_BUFFER_SIZE 256
|
|
#define UART2_RX_BUFFER_SIZE 256
|
|
#define UART2_TX_BUFFER_SIZE 256
|
|
#define UART3_RX_BUFFER_SIZE 256
|
|
#define UART3_TX_BUFFER_SIZE 256
|
|
#define UART4_RX_BUFFER_SIZE 256
|
|
#define UART4_TX_BUFFER_SIZE 256
|
|
#define UART5_RX_BUFFER_SIZE 256
|
|
#define UART5_TX_BUFFER_SIZE 256
|
|
#define UART6_RX_BUFFER_SIZE 256
|
|
#define UART6_TX_BUFFER_SIZE 256
|
|
|
|
typedef struct {
|
|
serialPort_t port;
|
|
|
|
#ifdef STM32F4
|
|
DMA_Stream_TypeDef *rxDMAStream;
|
|
DMA_Stream_TypeDef *txDMAStream;
|
|
uint32_t rxDMAChannel;
|
|
uint32_t txDMAChannel;
|
|
#else
|
|
DMA_Channel_TypeDef *rxDMAChannel;
|
|
DMA_Channel_TypeDef *txDMAChannel;
|
|
#endif
|
|
|
|
uint32_t rxDMAIrq;
|
|
uint32_t txDMAIrq;
|
|
|
|
uint32_t rxDMAPos;
|
|
bool txDMAEmpty;
|
|
|
|
uint32_t txDMAPeripheralBaseAddr;
|
|
uint32_t rxDMAPeripheralBaseAddr;
|
|
|
|
USART_TypeDef *USARTx;
|
|
} uartPort_t;
|
|
|
|
serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr rxCallback, uint32_t baudRate, portMode_t mode, portOptions_t options);
|
|
|
|
// serialPort API
|
|
void uartWrite(serialPort_t *instance, uint8_t ch);
|
|
uint32_t uartTotalRxBytesWaiting(const serialPort_t *instance);
|
|
uint32_t uartTotalTxBytesFree(const serialPort_t *instance);
|
|
uint8_t uartRead(serialPort_t *instance);
|
|
void uartSetBaudRate(serialPort_t *s, uint32_t baudRate);
|
|
bool isUartTransmitBufferEmpty(const serialPort_t *s);
|