dac_dma.h

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/* Copyright (c) 2015, Atmel Corporation                                        */
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#ifndef _DAC_DMA_
#define _DAC_DMA_

/*----------------------------------------------------------------------------
 *        Headers
 *----------------------------------------------------------------------------*/
#include "chip.h"

#include <stdint.h>
#include <assert.h>


#ifdef __cplusplus
extern "C" {
#endif


/*----------------------------------------------------------------------------
 *        Types
 *----------------------------------------------------------------------------*/

typedef void (*DacCallback)(uint8_t, void *);

typedef struct {
    uint8_t *pTxBuff;
    uint16_t TxSize;
    uint16_t loopback;
    uint8_t dacChannel;
    DacCallback callback;
    void *pArgument;
} DacCmd;


typedef struct {
    Dacc *pDacHw;
    DacCmd *pCurrentCommand;
    sXdmad *pXdmad;
    uint8_t dacId;
    volatile int8_t semaphore;
} DacDma;


/*------------------------------------------------------------------------------
 *         Definitions
 *------------------------------------------------------------------------------*/
#define DAC_OK          0
#define DAC_ERROR       1
#define DAC_ERROR_LOCK  2

#define DACC_CHANNEL_0 0
#define DACC_CHANNEL_1 1

/*------------------------------------------------------------------------------
 *         Exported functions
 *------------------------------------------------------------------------------*/
extern uint32_t Dac_ConfigureDma(DacDma *pDacd ,
                                  Dacc *pDacHw ,
                                  uint8_t DacId,
                                  sXdmad *pXdmad);
extern uint32_t Dac_SendData(DacDma *pDacd, DacCmd *pCommand);


/*------------------------------------------------------------------------------
 *         Macros function of register access
 *------------------------------------------------------------------------------*/
#define DACC_SoftReset(pDACC)                 ((pDACC)->DACC_CR = DACC_CR_SWRST)
#define DACC_CfgModeReg(pDACC, mode)          { (pDACC)->DACC_MR = (mode); }
#define DACC_GetModeReg(pDACC)                ((pDACC)->DACC_MR)
#define DACC_CfgTrigger(pDACC, mode)          { (pDACC)->DACC_TRIGR = (mode); }

#define DACC_EnableChannel(pDACC, channel)    {(pDACC)->DACC_CHER = (1 << (channel));}
#define DACC_DisableChannel(pDACC, channel)   {(pDACC)->DACC_CHDR = (1 << (channel));}

#define DACC_EnableIt(pDACC, mode)            {(pDACC)->DACC_IER = (mode);}
#define DACC_DisableIt(pDACC, mode)           {(pDACC)->DACC_IDR = (mode);}
#define DACC_GetStatus(pDACC)                 ((pDACC)->DACC_ISR)
#define DACC_GetChannelStatus(pDACC)          ((pDACC)->DACC_CHSR)
#define DACC_GetInterruptMaskStatus(pDACC)    ((pDACC)->DACC_IMR)


#ifdef __cplusplus
}
#endif

#endif /* #ifndef _DAC_DMA_ */