arch/arm/plat-feroceon/mv_hal/spi/mvSpi.h

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#ifndef __INCmvSpihH
#define __INCmvSpihH

#ifdef __cplusplus
extern "C" {
#endif

#include "mvCommon.h"
#include "ctrlEnv/mvCtrlEnvSpec.h"
#include "mvSysSpiConfig.h"

typedef struct {
	MV_U16		ctrlModel;
	MV_U32		tclk;
} MV_SPI_HAL_DATA;

#if (MV_SPI_VERSION > 1)

typedef struct {
	MV_BOOL		clockPolLow;
	enum {
		SPI_CLK_HALF_CYC,
		SPI_CLK_BEGIN_CYC
	}		clockPhase;
	MV_BOOL		txMsbFirst;
	MV_BOOL		rxMsbFirst;
} MV_SPI_IF_PARAMS;


typedef struct {
	MV_U8	tcsh;
	MV_U8	tmisoSample;
	MV_U8	tcsSetup;
	MV_U8	tcsHold;
} MV_SPI_TIMING_PARAMS;

#endif

typedef struct {
	/* Does this device support 16 bits access */
	MV_BOOL	en16Bit;
	/* should we assert / disassert CS for each byte we read / write */
	MV_BOOL	byteCsAsrt;
	MV_U32	baudRate;
} MV_SPI_TYPE_INFO;

typedef enum {
	SPI_TYPE_FLASH = 0,
	SPI_TYPE_SLIC
} MV_SPI_TYPE;


/* Function Prototypes */
/* Init */
MV_STATUS mvSpiInit(MV_U8 spiId, MV_U32 serialBaudRate, MV_SPI_HAL_DATA *halData);
MV_STATUS mvSpi8bitDataTxRx(MV_U8 spiId, MV_U8 txData, MV_U8 *pRxData);
MV_STATUS mvSpi16bitDataTxRx(MV_U8 spiId, MV_U16 txData, MV_U16 *pRxData);

/* Set the Frequency of the Spi clock */
MV_STATUS   mvSpiBaudRateSet(MV_U8 spiId, MV_U32 serialBaudRate);

/* Assert the SPI chip select */
MV_VOID     mvSpiCsAssert(MV_U8 spiId);

/* De-assert the SPI chip select */
MV_VOID     mvSpiCsDeassert(MV_U8 spiId);

/* Simultanuous Read and write */
MV_STATUS	mvSpiReadWrite(MV_U8 spiId, MV_U8 *pRxBuff, MV_U8* pTxBuff, MV_U32 buffSize);

/* serialize a buffer on the TX line - Rx is ignored */
MV_STATUS	mvSpiWrite(MV_U8 spiId, MV_U8 *pTxBuff, MV_U32 buffSize);

/* read from the RX line by writing dummy values to the TX line */
MV_STATUS	mvSpiRead(MV_U8 spiId, MV_U8 *pRxBuff, MV_U32 buffSize);

/* Set SPI parameters before any transaction is issued */
MV_STATUS mvSpiParamsSet(MV_U8 spiId, MV_U8 csId, MV_SPI_TYPE type);

#if (MV_SPI_VERSION > 1)

MV_STATUS mvSpiCsSet(MV_U8 spiId, MV_U8 csId);
MV_STATUS mvSpiIfConfigSet(MV_U8 spiId, MV_SPI_IF_PARAMS *ifParams);
MV_STATUS mvSpiTimingParamsSet(MV_U8 spiId, MV_SPI_TIMING_PARAMS *tmngParams);

#endif

#ifdef __cplusplus
}
#endif

#endif /* __INCmvSpihH */