144 lines
5.0 KiB
C
144 lines
5.0 KiB
C
#include "bsp_spi.h"
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#include "memory.h"
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#include "stdlib.h"
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/* 所有的spi instance保存于此,用于callback时判断中断来源*/
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static SPIInstance *spi_instance[SPI_DEVICE_CNT] = {NULL};
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static uint8_t idx = 0; // 配合中断以及初始化
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/**
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* @brief 当SPI接收完成,将会调用此回调函数,可以进行协议解析或其他必须的数据处理等
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*
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* @param hspi spi handle
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*/
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void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
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{
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for (size_t i = 0; i < idx; i++)
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{
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if (spi_instance[i]->spi_handle == hspi && spi_instance[i]->callback)
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{
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// 拉高片选(关闭传输),调用解析回调函数
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HAL_GPIO_WritePin(spi_instance[i]->GPIO_cs, spi_instance[i]->cs_pin, GPIO_PIN_SET);
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spi_instance[i]->callback(spi_instance[i]);
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break;
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}
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}
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}
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/**
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* @brief 和RxCpltCallback共用解析即可,这里只是形式上封装一下,不用重复写
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*
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* @param hspi spi handle
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*/
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void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi)
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{
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HAL_SPI_RxCpltCallback(hspi);
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}
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SPIInstance *SPIRegister(SPI_Init_Config_s *conf)
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{
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spi_instance[idx] = (SPIInstance *)malloc(sizeof(SPIInstance));
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spi_instance[idx]->callback = conf->callback;
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spi_instance[idx]->spi_work_mode = conf->spi_work_mode;
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spi_instance[idx]->spi_handle = conf->spi_handle;
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return spi_instance[idx++];
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}
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void SPITransmit(SPIInstance *spi_ins, uint8_t *ptr_data, uint8_t len)
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{
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// 拉低片选,开始传输
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_RESET);
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switch (spi_ins->spi_work_mode)
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{
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case SPI_DMA_MODE:
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HAL_SPI_Transmit_DMA(spi_ins->spi_handle, ptr_data, len);
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break;
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case SPI_IT_MODE:
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HAL_SPI_Transmit_IT(spi_ins->spi_handle, ptr_data, len);
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break;
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case SPI_BLOCK_MODE:
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HAL_SPI_Transmit(spi_ins->spi_handle, ptr_data, len, 10);
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// 阻塞模式不会调用回调函数,传输完成后直接拉高片选结束
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_SET);
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break;
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default:
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while (1)
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; // error mode! 请查看是否正确设置模式，或出现指针越界导致模式被异常修改的情况
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break;
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}
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}
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void SPIRecv(SPIInstance *spi_ins, uint8_t *ptr_data, uint8_t len)
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{
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// 拉低片选,开始传输
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_RESET);
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switch (spi_ins->spi_work_mode)
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{
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case SPI_DMA_MODE:
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HAL_SPI_Receive_DMA(spi_ins->spi_handle, ptr_data, len);
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break;
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case SPI_IT_MODE:
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HAL_SPI_Receive_IT(spi_ins->spi_handle, ptr_data, len);
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break;
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case SPI_BLOCK_MODE:
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HAL_SPI_Receive(spi_ins->spi_handle, ptr_data, len, 10);
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// 阻塞模式不会调用回调函数,传输完成后直接拉高片选结束
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_SET);
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break;
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default:
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while (1)
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; // error mode! 请查看是否正确设置模式，或出现指针越界导致模式被异常修改的情况
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break;
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}
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}
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void SPITransRecv(SPIInstance *spi_ins, uint8_t *ptr_data_rx, uint8_t *ptr_data_tx, uint8_t len)
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{
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// 拉低片选,开始传输
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_RESET);
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switch (spi_ins->spi_work_mode)
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{
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case SPI_DMA_MODE:
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HAL_SPI_TransmitReceive_DMA(spi_ins->spi_handle, ptr_data_tx, ptr_data_rx, len);
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break;
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case SPI_IT_MODE:
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HAL_SPI_TransmitReceive_IT(spi_ins->spi_handle, ptr_data_tx, ptr_data_rx, len);
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break;
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case SPI_BLOCK_MODE:
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HAL_SPI_TransmitReceive(spi_ins->spi_handle, ptr_data_tx, ptr_data_rx, len, 10);
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// 阻塞模式不会调用回调函数,传输完成后直接拉高片选结束
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_SET);
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break;
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default:
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while (1)
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; // error mode! 请查看是否正确设置模式，或出现指针越界导致模式被异常修改的情况
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break;
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}
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}
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void SPISetMode(SPIInstance *spi_ins, SPI_TXRX_MODE_e spi_mode)
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{
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if (spi_ins->spi_work_mode != spi_mode)
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{
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switch (spi_ins->spi_work_mode)
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{
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case SPI_IT_MODE:
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case SPI_DMA_MODE:
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// IT和DMA处理相同,都是先终止传输,防止传输未完成直接切换导致spi死机
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HAL_SPI_Abort_IT(spi_ins->spi_handle);
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_SET); // 关闭后拉高片选
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break;
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case SPI_BLOCK_MODE:
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// 阻塞模式仍然有可能在多线程的情况下出现传输到一半切换,因此先终止
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HAL_SPI_Abort(spi_ins->spi_handle);
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HAL_GPIO_WritePin(spi_ins->GPIO_cs, spi_ins->cs_pin, GPIO_PIN_SET); // 关闭后拉高片选
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break;
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default:
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while (1)
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; // error mode! 请查看是否正确设置模式，或出现指针越界导致模式被异常修改的情况
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break;
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}
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spi_ins->spi_work_mode = spi_mode;
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}
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}
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