209 lines
9.0 KiB
C
209 lines
9.0 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016, Freescale Semiconductor, Inc.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
* are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* o Redistributions of source code must retain the above copyright notice, this list
|
||
|
|
* of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* o Redistributions in binary form must reproduce the above copyright notice, this
|
||
|
|
* list of conditions and the following disclaimer in the documentation and/or
|
||
|
|
* other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
|
||
|
|
* contributors may be used to endorse or promote products derived from this
|
||
|
|
* software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
|
||
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
||
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
#ifndef _FSL_SPDIF_EDMA_H_
|
||
|
|
#define _FSL_SPDIF_EDMA_H_
|
||
|
|
|
||
|
|
#include "fsl_spdif.h"
|
||
|
|
#include "fsl_edma.h"
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @addtogroup spdif_edma
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* Definitions
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
typedef struct _spdif_edma_handle spdif_edma_handle_t;
|
||
|
|
|
||
|
|
/*! @brief SPDIF eDMA transfer callback function for finish and error */
|
||
|
|
typedef void (*spdif_edma_callback_t)(SPDIF_Type *base, spdif_edma_handle_t *handle, status_t status, void *userData);
|
||
|
|
|
||
|
|
/*! @brief SPDIF transfer structure */
|
||
|
|
typedef struct _spdif_edma_transfer
|
||
|
|
{
|
||
|
|
uint8_t *leftData; /*!< Data start address to transfer. */
|
||
|
|
uint8_t *rightData; /*!< Data start address to transfer. */
|
||
|
|
size_t dataSize; /*!< Transfer size. */
|
||
|
|
} spdif_edma_transfer_t;
|
||
|
|
|
||
|
|
/*! @brief SPDIF DMA transfer handle, users should not touch the content of the handle.*/
|
||
|
|
struct _spdif_edma_handle
|
||
|
|
{
|
||
|
|
edma_handle_t *dmaLeftHandle; /*!< DMA handler for SPDIF left channel */
|
||
|
|
edma_handle_t *dmaRightHandle; /*!< DMA handler for SPDIF right channel */
|
||
|
|
uint8_t nbytes; /*!< eDMA minor byte transfer count initially configured. */
|
||
|
|
uint8_t count; /*!< The transfer data count in a DMA request */
|
||
|
|
uint32_t state; /*!< Internal state for SPDIF eDMA transfer */
|
||
|
|
spdif_edma_callback_t callback; /*!< Callback for users while transfer finish or error occurs */
|
||
|
|
void *userData; /*!< User callback parameter */
|
||
|
|
edma_tcd_t leftTcd[SPDIF_XFER_QUEUE_SIZE + 1U]; /*!< TCD pool for eDMA transfer. */
|
||
|
|
edma_tcd_t rightTcd[SPDIF_XFER_QUEUE_SIZE + 1U]; /*!< TCD pool for eDMA transfer. */
|
||
|
|
spdif_edma_transfer_t spdifQueue[SPDIF_XFER_QUEUE_SIZE]; /*!< Transfer queue storing queued transfer. */
|
||
|
|
size_t transferSize[SPDIF_XFER_QUEUE_SIZE]; /*!< Data bytes need to transfer, left and right are the same, so use
|
||
|
|
one */
|
||
|
|
volatile uint8_t queueUser; /*!< Index for user to queue transfer. */
|
||
|
|
volatile uint8_t queueDriver; /*!< Index for driver to get the transfer data and size */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* APIs
|
||
|
|
******************************************************************************/
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @name eDMA Transactional
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Initializes the SPDIF eDMA handle.
|
||
|
|
*
|
||
|
|
* This function initializes the SPDIF master DMA handle, which can be used for other SPDIF master transactional APIs.
|
||
|
|
* Usually, for a specified SPDIF instance, call this API once to get the initialized handle.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer.
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
* @param base SPDIF peripheral base address.
|
||
|
|
* @param callback Pointer to user callback function.
|
||
|
|
* @param userData User parameter passed to the callback function.
|
||
|
|
* @param dmaLeftHandle eDMA handle pointer for left channel, this handle shall be static allocated by users.
|
||
|
|
* @param dmaRightHandle eDMA handle pointer for right channel, this handle shall be static allocated by users.
|
||
|
|
*/
|
||
|
|
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);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Initializes the SPDIF Rx eDMA handle.
|
||
|
|
*
|
||
|
|
* This function initializes the SPDIF slave DMA handle, which can be used for other SPDIF master transactional APIs.
|
||
|
|
* Usually, for a specified SPDIF instance, call this API once to get the initialized handle.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer.
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
* @param base SPDIF peripheral base address.
|
||
|
|
* @param callback Pointer to user callback function.
|
||
|
|
* @param userData User parameter passed to the callback function.
|
||
|
|
* @param dmaLeftHandle eDMA handle pointer for left channel, this handle shall be static allocated by users.
|
||
|
|
* @param dmaRightHandle eDMA handle pointer for right channel, this handle shall be static allocated by users.
|
||
|
|
*/
|
||
|
|
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);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Performs a non-blocking SPDIF transfer using DMA.
|
||
|
|
*
|
||
|
|
* @note This interface returns immediately after the transfer initiates. Call
|
||
|
|
* SPDIF_GetTransferStatus to poll the transfer status and check whether the SPDIF transfer is finished.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer.
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
* @param xfer Pointer to the DMA transfer structure.
|
||
|
|
* @retval kStatus_Success Start a SPDIF eDMA send successfully.
|
||
|
|
* @retval kStatus_InvalidArgument The input argument is invalid.
|
||
|
|
* @retval kStatus_TxBusy SPDIF is busy sending data.
|
||
|
|
*/
|
||
|
|
status_t SPDIF_TransferSendEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, spdif_edma_transfer_t *xfer);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Performs a non-blocking SPDIF receive using eDMA.
|
||
|
|
*
|
||
|
|
* @note This interface returns immediately after the transfer initiates. Call
|
||
|
|
* the SPDIF_GetReceiveRemainingBytes to poll the transfer status and check whether the SPDIF transfer is finished.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
* @param xfer Pointer to DMA transfer structure.
|
||
|
|
* @retval kStatus_Success Start a SPDIF eDMA receive successfully.
|
||
|
|
* @retval kStatus_InvalidArgument The input argument is invalid.
|
||
|
|
* @retval kStatus_RxBusy SPDIF is busy receiving data.
|
||
|
|
*/
|
||
|
|
status_t SPDIF_TransferReceiveEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, spdif_edma_transfer_t *xfer);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Aborts a SPDIF transfer using eDMA.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer.
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
*/
|
||
|
|
void SPDIF_TransferAbortSendEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Aborts a SPDIF receive using eDMA.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
*/
|
||
|
|
void SPDIF_TransferAbortReceiveEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gets byte count sent by SPDIF.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer.
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
* @param count Bytes count sent by SPDIF.
|
||
|
|
* @retval kStatus_Success Succeed get the transfer count.
|
||
|
|
* @retval kStatus_NoTransferInProgress There is no non-blocking transaction in progress.
|
||
|
|
*/
|
||
|
|
status_t SPDIF_TransferGetSendCountEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, size_t *count);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @brief Gets byte count received by SPDIF.
|
||
|
|
*
|
||
|
|
* @param base SPDIF base pointer
|
||
|
|
* @param handle SPDIF eDMA handle pointer.
|
||
|
|
* @param count Bytes count received by SPDIF.
|
||
|
|
* @retval kStatus_Success Succeed get the transfer count.
|
||
|
|
* @retval kStatus_NoTransferInProgress There is no non-blocking transaction in progress.
|
||
|
|
*/
|
||
|
|
status_t SPDIF_TransferGetReceiveCountEDMA(SPDIF_Type *base, spdif_edma_handle_t *handle, size_t *count);
|
||
|
|
|
||
|
|
/*! @} */
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
#endif
|