src/main/drivers/serial_uart.h - master - Sangak/inav

src/main/drivers/serial_uart.h
85 строк3 KB
bkleiner
at32: add uart pinswap
02 сен 2024, 13:41
02 сен 2024, 13:41b5da18f
/*
 * 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

#define UART_AF(uart, af) CONCAT3(GPIO_AF, af, _ ## uart)

// 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
#define UART7_RX_BUFFER_SIZE    256
#define UART7_TX_BUFFER_SIZE    256
#define UART8_RX_BUFFER_SIZE    256
#define UART8_TX_BUFFER_SIZE    256

typedef enum {
    UARTDEV_1 = 0,
    UARTDEV_2 = 1,
    UARTDEV_3 = 2,
    UARTDEV_4 = 3,
    UARTDEV_5 = 4,
    UARTDEV_6 = 5,
    UARTDEV_7 = 6,
    UARTDEV_8 = 7,
    UARTDEV_MAX
} UARTDevice_e;

typedef struct {
    serialPort_t port;

    #if defined(AT32F43x) 
        usart_type  *USARTx;
    #else
        #ifdef USE_HAL_DRIVER
            UART_HandleTypeDef Handle;
        #endif 
        USART_TypeDef *USARTx;
    #endif
  
} uartPort_t;

void uartGetPortPins(UARTDevice_e device, serialPortPins_t * pins);
void uartClearIdleFlag(uartPort_t *s);
void uartConfigurePinSwap(uartPort_t *uartPort);
#if defined(AT32F43x) 
serialPort_t *uartOpen(usart_type *USARTx, serialReceiveCallbackPtr rxCallback, void *rxCallbackData, uint32_t baudRate, portMode_t mode, portOptions_t options);
#else
serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr rxCallback, void *rxCallbackData, uint32_t baudRate, portMode_t mode, portOptions_t options);
#endif
// 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);