fsl_flexio_uart_dma.h

/*
 * Copyright (c) 2015, Freescale Semiconductor, Inc.
 * Copyright 2016-2020 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
#ifndef _FSL_FLEXIO_UART_DMA_H_
#define _FSL_FLEXIO_UART_DMA_H_
 
#include "fsl_flexio_uart.h"
#include "fsl_dma.h"

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

#define FSL_FLEXIO_UART_DMA_DRIVER_VERSION (MAKE_VERSION(2, 4, 0))
 
/* Forward declaration of the handle typedef. */
typedef struct _flexio_uart_dma_handle flexio_uart_dma_handle_t;

typedef void (*flexio_uart_dma_transfer_callback_t)(FLEXIO_UART_Type *base,
                                                    flexio_uart_dma_handle_t *handle,
                                                    status_t status,
                                                    void *userData);

struct _flexio_uart_dma_handle
{
    flexio_uart_dma_transfer_callback_t callback; 
    void *userData;                               
 
    size_t txDataSizeAll; 
    size_t rxDataSizeAll; 
 
    dma_handle_t *txDmaHandle; 
    dma_handle_t *rxDmaHandle; 
 
    volatile uint8_t txState; 
    volatile uint8_t rxState; 
};
 
/*******************************************************************************
 * API
 ******************************************************************************/
 
#if defined(__cplusplus)
extern "C" {
#endif


status_t FLEXIO_UART_TransferCreateHandleDMA(FLEXIO_UART_Type *base,
                                             flexio_uart_dma_handle_t *handle,
                                             flexio_uart_dma_transfer_callback_t callback,
                                             void *userData,
                                             dma_handle_t *txDmaHandle,
                                             dma_handle_t *rxDmaHandle);

status_t FLEXIO_UART_TransferSendDMA(FLEXIO_UART_Type *base,
                                     flexio_uart_dma_handle_t *handle,
                                     flexio_uart_transfer_t *xfer);

status_t FLEXIO_UART_TransferReceiveDMA(FLEXIO_UART_Type *base,
                                        flexio_uart_dma_handle_t *handle,
                                        flexio_uart_transfer_t *xfer);

void FLEXIO_UART_TransferAbortSendDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle);

void FLEXIO_UART_TransferAbortReceiveDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle);

status_t FLEXIO_UART_TransferGetSendCountDMA(FLEXIO_UART_Type *base, flexio_uart_dma_handle_t *handle, size_t *count);

status_t FLEXIO_UART_TransferGetReceiveCountDMA(FLEXIO_UART_Type *base,
                                                flexio_uart_dma_handle_t *handle,
                                                size_t *count);

 
#if defined(__cplusplus)
}
#endif

 
#endif /* _FSL_UART_DMA_H_ */