fsl_lpuart_dma.h

/*
 * Copyright (c) 2015, Freescale Semiconductor, Inc.
 * Copyright 2016-2022 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
#ifndef _FSL_LPUART_DMA_H_
#define _FSL_LPUART_DMA_H_
 
#include "fsl_lpuart.h"
#include "fsl_dma.h"
 
/*******************************************************************************
 * Definitions
 ******************************************************************************/
 
#define FSL_LPUART_DMA_DRIVER_VERSION (MAKE_VERSION(2, 6, 0))
/* Forward declaration of the handle typedef. */
typedef struct _lpuart_dma_handle lpuart_dma_handle_t;
 
typedef void (*lpuart_dma_transfer_callback_t)(LPUART_Type *base,
                                               lpuart_dma_handle_t *handle,
                                               status_t status,
                                               void *userData);
 
struct _lpuart_dma_handle
{
    lpuart_dma_transfer_callback_t callback; 
    void *userData;                          
    size_t rxDataSizeAll;                    
    size_t txDataSizeAll;                    
    dma_handle_t *txDmaHandle; 
    dma_handle_t *rxDmaHandle; 
    volatile uint8_t txState; 
    volatile uint8_t rxState; 
};
 
/*******************************************************************************
 * API
 ******************************************************************************/
 
#if defined(__cplusplus)
extern "C" {
#endif
 
void LPUART_TransferCreateHandleDMA(LPUART_Type *base,
                                    lpuart_dma_handle_t *handle,
                                    lpuart_dma_transfer_callback_t callback,
                                    void *userData,
                                    dma_handle_t *txDmaHandle,
                                    dma_handle_t *rxDmaHandle);
 
status_t LPUART_TransferSendDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, lpuart_transfer_t *xfer);
 
status_t LPUART_TransferReceiveDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, lpuart_transfer_t *xfer);
 
void LPUART_TransferAbortSendDMA(LPUART_Type *base, lpuart_dma_handle_t *handle);
 
void LPUART_TransferAbortReceiveDMA(LPUART_Type *base, lpuart_dma_handle_t *handle);
 
status_t LPUART_TransferGetSendCountDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, uint32_t *count);
 
status_t LPUART_TransferGetReceiveCountDMA(LPUART_Type *base, lpuart_dma_handle_t *handle, uint32_t *count);
 
void LPUART_TransferDMAHandleIRQ(LPUART_Type *base, void *lpuartDmaHandle);
 
#if defined(__cplusplus)
}
#endif
 
#endif /* _FSL_LPUART_DMA_H_ */