fsl_spdif_edma.h

/*
 * Copyright (c) 2016, Freescale Semiconductor, Inc.
 * Copyright 2017-2020 NXP
 * All rights reserved.
 *
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
#ifndef _FSL_SPDIF_EDMA_H_
#define _FSL_SPDIF_EDMA_H_
 
#include "fsl_spdif.h"
#include "fsl_edma.h"
 
/*******************************************************************************
 * Definitions
 ******************************************************************************/
 
#define FSL_SPDIF_EDMA_DRIVER_VERSION (MAKE_VERSION(2, 0, 5)) 
 
typedef struct _spdif_edma_handle spdif_edma_handle_t;
 
typedef void (*spdif_edma_callback_t)(SPDIF_Type *base, spdif_edma_handle_t *handle, status_t status, void *userData);
 
typedef struct _spdif_edma_transfer
{
    uint8_t *leftData;  
    uint8_t *rightData; 
    size_t dataSize;    
} spdif_edma_transfer_t;
 
struct _spdif_edma_handle
{
    edma_handle_t *dmaLeftHandle;                    
    edma_handle_t *dmaRightHandle;                   
    uint8_t nbytes;                                  
    uint8_t count;                                   
    uint32_t state;                                  
    spdif_edma_callback_t callback;                  
    void *userData;                                  
    edma_tcd_t leftTcd[SPDIF_XFER_QUEUE_SIZE + 1U];  
    edma_tcd_t rightTcd[SPDIF_XFER_QUEUE_SIZE + 1U]; 
    spdif_edma_transfer_t spdifQueue[SPDIF_XFER_QUEUE_SIZE]; 
    size_t transferSize[SPDIF_XFER_QUEUE_SIZE]; 
    volatile uint8_t queueUser;                 
    volatile uint8_t queueDriver;               
};
 
/*******************************************************************************
 * APIs
 ******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif
 
void SPDIF_TransferTxCreateHandleEDMA(SPDIF_Type *base,
                                      spdif_edma_handle_t *handle,
                                      spdif_edma_callback_t callback,
                                      void *userData,
                                      edma_handle_t *dmaLeftHandle,
                                      edma_handle_t *dmaRightHandle);
 
void SPDIF_TransferRxCreateHandleEDMA(SPDIF_Type *base,
                                      spdif_edma_handle_t *handle,
                                      spdif_edma_callback_t callback,
                                      void *userData,
                                      edma_handle_t *dmaLeftHandle,
                                      edma_handle_t *dmaRightHandle);
 
status_t SPDIF_TransferSendEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, spdif_edma_transfer_t *xfer);
 
status_t SPDIF_TransferReceiveEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, spdif_edma_transfer_t *xfer);
 
void SPDIF_TransferAbortSendEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle);
 
void SPDIF_TransferAbortReceiveEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle);
 
status_t SPDIF_TransferGetSendCountEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, size_t *count);
 
status_t SPDIF_TransferGetReceiveCountEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, size_t *count);
 
#if defined(__cplusplus)
}
#endif
 
#endif