fsl_flexspi_dma.h

/*
 * Copyright 2019-2021 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef _FSL_FLEXSPI_DMA_H_
#define _FSL_FLEXSPI_DMA_H_
 
#include "fsl_flexspi.h"
#include "fsl_dma.h"

 
/*******************************************************************************
 * Definitions
 ******************************************************************************/

#define FSL_FLEXSPI_DMA_DRIVER_VERSION (MAKE_VERSION(2, 2, 1))
 
typedef struct _flexspi_dma_handle flexspi_dma_handle_t;

typedef void (*flexspi_dma_callback_t)(FLEXSPI_Type *base,
                                       flexspi_dma_handle_t *handle,
                                       status_t status,
                                       void *userData);

typedef enum _flexspi_dma_ntransfer_size
{
    kFLEXPSI_DMAnSize1Bytes = 0x1U, 
    kFLEXPSI_DMAnSize2Bytes = 0x2U, 
    kFLEXPSI_DMAnSize4Bytes = 0x4U, 
} flexspi_dma_transfer_nsize_t;

struct _flexspi_dma_handle
{
    dma_handle_t *txDmaHandle;                 
    dma_handle_t *rxDmaHandle;                 
    size_t transferSize;                       
    flexspi_dma_transfer_nsize_t nsize;        
    uint8_t nbytes;                            
    uint8_t count;                             
    uint32_t state;                            
    flexspi_dma_callback_t completionCallback; 
    void *userData;                            
};
 
/*******************************************************************************
 * APIs
 ******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif


void FLEXSPI_TransferCreateHandleDMA(FLEXSPI_Type *base,
                                     flexspi_dma_handle_t *handle,
                                     flexspi_dma_callback_t callback,
                                     void *userData,
                                     dma_handle_t *txDmaHandle,
                                     dma_handle_t *rxDmaHandle);

void FLEXSPI_TransferUpdateSizeDMA(FLEXSPI_Type *base,
                                   flexspi_dma_handle_t *handle,
                                   flexspi_dma_transfer_nsize_t nsize);

status_t FLEXSPI_TransferDMA(FLEXSPI_Type *base, flexspi_dma_handle_t *handle, flexspi_transfer_t *xfer);

void FLEXSPI_TransferAbortDMA(FLEXSPI_Type *base, flexspi_dma_handle_t *handle);

status_t FLEXSPI_TransferGetTransferCountDMA(FLEXSPI_Type *base, flexspi_dma_handle_t *handle, size_t *count);
 
/* @} */
 
#if defined(__cplusplus)
}
#endif
 
/* @} */
 
#endif /* _FSL_FLEXSPI_DMA_H_ */