CHJ/user/MCU/lhl_dma.c

#include "../main/SystemInclude.h" 

/* <20><><EFBFBD><EFBFBD>DMAMUX<55><58>DMA<4D><41>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
void DMA_DMAMUX_CFG(DMA_CHANNEL_t channel,DMAMUX_REQ_SRC_t source)
{
 		DMAMUX_InitTypeDef DMAMUX_InitStructure;    

    DMAMUX_InitStructure.DMA_Channel = channel;
    DMAMUX_InitStructure.Request_Source = source;
    DMAMUX_InitStructure.Periodic_Trigger = DISABLE;
    DMAMUX_InitStructure.Cmd = ENABLE;
    LHL_DMAMUX_Init(&DMAMUX_InitStructure); 
}






	
/**------------------------------------------------------------------------
  * @brief <EFBFBD>жϻص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD>
  * @note   
	* @param   
  * @example:  
**/ 
static dma_callbacks_t dma_callbacks[4] = {NULL};

void DMA_register_irq_callback(DMA_CHANNEL_t dmachannel, dma_half_irq_callback_t dma_half_irq_callback ,dma_major_irq_callback_t dma_major_irq_callback)
{
	dma_callbacks[dmachannel].half_callback  = dma_half_irq_callback;
	dma_callbacks[dmachannel].major_callback = dma_major_irq_callback;
    switch (dmachannel) { //<2F><>ȡ EXTI <20>߶<EFBFBD>Ӧ<EFBFBD><D3A6> IRQ <20><>
        case DMA_CHANNEL_0:  NVIC_EnableIRQ(DMA1_CH0_IRQn); break;
        case DMA_CHANNEL_1: NVIC_EnableIRQ(DMA1_CH1_IRQn);  break;
        case DMA_CHANNEL_2:
        case DMA_CHANNEL_3:
             NVIC_EnableIRQ(DMA1_CH2_CH3_IRQn);   break;
        default: break;		// <20><>֧<EFBFBD>ֵ<EFBFBD>ͨ<EFBFBD><CDA8>
    }
}



void DMA1_CH0_IRQHandler(void)
{
	if(LHL_DMA_GetPending(DMA_CHANNEL_0) == DMA_IT_HALF) {
			if(dma_callbacks[DMA_CHANNEL_0].half_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_0].half_callback();
			}
	} else if(LHL_DMA_GetPending(DMA_CHANNEL_0) == DMA_IT_MAJOR) {
			if(dma_callbacks[DMA_CHANNEL_0].major_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_0].major_callback();
			}
	}
	LHL_DMA_ClearPending(DMA_CHANNEL_0);
}



void DMA1_CH1_IRQHandler(void)//
{
	if(LHL_DMA_GetPending(DMA_CHANNEL_1) == DMA_IT_HALF) {
			if(dma_callbacks[DMA_CHANNEL_1].half_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_1].half_callback();
			}
	} else if(LHL_DMA_GetPending(DMA_CHANNEL_1) == DMA_IT_MAJOR) {
			if(dma_callbacks[DMA_CHANNEL_1].major_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_1].major_callback();
			}
	}
	LHL_DMA_ClearPending(DMA_CHANNEL_1);
}


void DMA1_CH2_3_IRQHandler(void)
{
	if(LHL_DMA_GetPending(DMA_CHANNEL_2) == DMA_IT_HALF) {
			if(dma_callbacks[DMA_CHANNEL_2].half_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_2].half_callback();
			}
	} else if(LHL_DMA_GetPending(DMA_CHANNEL_2) == DMA_IT_MAJOR) {
			if(dma_callbacks[DMA_CHANNEL_2].major_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_2].major_callback();
			}
	}
	if(LHL_DMA_GetPending(DMA_CHANNEL_3) == DMA_IT_HALF) {
			if(dma_callbacks[DMA_CHANNEL_3].half_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_3].half_callback();
			}
	} else if(LHL_DMA_GetPending(DMA_CHANNEL_3) == DMA_IT_MAJOR) {
			if(dma_callbacks[DMA_CHANNEL_3].major_callback != NULL) {
					dma_callbacks[DMA_CHANNEL_3].major_callback();
			}
	}
	LHL_DMA_ClearPending(DMA_CHANNEL_2);
	LHL_DMA_ClearPending(DMA_CHANNEL_3);	
}