fsl_flexspi_edma.h

/*
 * Copyright (c) 2016, Freescale Semiconductor, Inc.
 * Copyright 2016-2020 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef _FSL_FLEXSPI_EDMA_H_
#define _FSL_FLEXSPI_EDMA_H_
 
#include "fsl_flexspi.h"
#if defined(FSL_FEATURE_SOC_DMAMUX_COUNT) && FSL_FEATURE_SOC_DMAMUX_COUNT
#include "fsl_dmamux.h"
#endif
#include "fsl_edma.h"
 
/*******************************************************************************
 * Definitions
 ******************************************************************************/
 
#define FSL_FLEXSPI_EDMA_DRIVER_VERSION (MAKE_VERSION(2, 3, 2))
typedef struct _flexspi_edma_handle flexspi_edma_handle_t;
 
typedef void (*flexspi_edma_callback_t)(FLEXSPI_Type *base,
                                        flexspi_edma_handle_t *handle,
                                        status_t status,
                                        void *userData);
 
typedef enum _flexspi_edma_ntransfer_size
{
    kFLEXPSI_EDMAnSize1Bytes  = 0x1U,  
    kFLEXPSI_EDMAnSize2Bytes  = 0x2U,  
    kFLEXPSI_EDMAnSize4Bytes  = 0x4U,  
    kFLEXPSI_EDMAnSize8Bytes  = 0x8U,  
    kFLEXPSI_EDMAnSize32Bytes = 0x20U, 
} flexspi_edma_transfer_nsize_t;
 
struct _flexspi_edma_handle
{
    edma_handle_t *txDmaHandle;                 
    edma_handle_t *rxDmaHandle;                 
    size_t transferSize;                        
    flexspi_edma_transfer_nsize_t nsize;        
    uint8_t nbytes;                             
    uint8_t count;                              
    uint32_t state;                             
    flexspi_edma_callback_t completionCallback; 
    void *userData;                             
};
 
/*******************************************************************************
 * APIs
 ******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif
 
void FLEXSPI_TransferCreateHandleEDMA(FLEXSPI_Type *base,
                                      flexspi_edma_handle_t *handle,
                                      flexspi_edma_callback_t callback,
                                      void *userData,
                                      edma_handle_t *txDmaHandle,
                                      edma_handle_t *rxDmaHandle);
 
void FLEXSPI_TransferUpdateSizeEDMA(FLEXSPI_Type *base,
                                    flexspi_edma_handle_t *handle,
                                    flexspi_edma_transfer_nsize_t nsize);
 
status_t FLEXSPI_TransferEDMA(FLEXSPI_Type *base, flexspi_edma_handle_t *handle, flexspi_transfer_t *xfer);
 
void FLEXSPI_TransferAbortEDMA(FLEXSPI_Type *base, flexspi_edma_handle_t *handle);
 
status_t FLEXSPI_TransferGetTransferCountEDMA(FLEXSPI_Type *base, flexspi_edma_handle_t *handle, size_t *count);
 
/* @} */
 
#if defined(__cplusplus)
}
#endif
 
/* @} */
 
#endif /* _FSL_FLEXSPI_EDMA_H_ */