mirror of
https://github.com/betaflight/betaflight.git
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86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*
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* This file is part of Cleanflight and Betaflight.
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*
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* Cleanflight and Betaflight are free software. You can redistribute
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* this software and/or modify this software under the terms of the
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* GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* Cleanflight and Betaflight are distributed in the hope that they
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the 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 software.
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*
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "drivers/dma.h" // For dmaResource_t
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// Since serial ports can be used for any function these buffer sizes should be equal
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// The two largest things that need to be sent are: 1, MSP responses, 2, UBLOX SVINFO packet.
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// Size must be a power of two due to various optimizations which use 'and' instead of 'mod'
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// Various serial routines return the buffer occupied size as uint8_t which would need to be extended in order to
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// increase size further.
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typedef enum {
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UARTDEV_1 = 0,
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UARTDEV_2 = 1,
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UARTDEV_3 = 2,
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UARTDEV_4 = 3,
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UARTDEV_5 = 4,
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UARTDEV_6 = 5,
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UARTDEV_7 = 6,
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UARTDEV_8 = 7,
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UARTDEV_9 = 8,
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UARTDEV_10 = 9,
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LPUARTDEV_1 = 10,
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MAX_UARTDEV = LPUARTDEV_1,
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} UARTDevice_e;
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typedef struct uartPort_s {
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serialPort_t port;
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#ifdef USE_DMA
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#ifdef USE_HAL_DRIVER
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DMA_HandleTypeDef rxDMAHandle;
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DMA_HandleTypeDef txDMAHandle;
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#endif
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dmaResource_t *rxDMAResource;
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dmaResource_t *txDMAResource;
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uint32_t rxDMAChannel;
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uint32_t txDMAChannel;
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#if defined(USE_ATBSP_DRIVER)
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uint32_t rxDMAMuxId;
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uint32_t txDMAMuxId;
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#endif
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uint32_t rxDMAIrq;
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uint32_t txDMAIrq;
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uint32_t rxDMAPos;
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uint32_t txDMAPeripheralBaseAddr;
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uint32_t rxDMAPeripheralBaseAddr;
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#endif // USE_DMA
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#ifdef USE_HAL_DRIVER
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// All USARTs can also be used as UART, and we use them only as UART.
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UART_HandleTypeDef Handle;
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#endif
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USART_TypeDef *USARTx;
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bool txDMAEmpty;
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bool (* checkUsartTxOutput)(struct uartPort_s *s);
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} uartPort_t;
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void uartPinConfigure(const serialPinConfig_t *pSerialPinConfig);
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serialPort_t *uartOpen(UARTDevice_e device, serialReceiveCallbackPtr rxCallback, void *rxCallbackData, uint32_t baudRate, portMode_e mode, portOptions_e options);
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