csl_mmcsd_ataIf.h File Reference

Functional layer API header file for MMCSD ATA file system interface. More...

#include "ata.h"
#include "csl_types.h"

Go to the source code of this file.

Data Structures
struct	AtaMMCState
	Structure to hold the media ATA state values specific to MMCSD. More...
Defines
#define	CSL_MMCSD_PAGE_SIZE   (512u)
#define	USE_ATA_NO_SWAP   (TRUE)
Typedefs
typedef struct AtaMMCState	AtaMMCState
	Structure to hold the media ATA state values specific to MMCSD.
Functions
AtaError	MMC_readWriteControl (AtaSector phySector, void *pAtaMediaState, AtaUint16 *pWord, int byteSwap)
AtaError	MMC_initState (AtaState *pDrive)
AtaError	MMC_issueReadCommand (AtaSector phySector, void *pAtaMediaState, AtaUint16 sectorCount)
AtaError	MMC_readNextWord (void *pAtaMediaState, AtaUint16 *pWord)
AtaError	MMC_readNextWord1 (void *pAtaMediaState, AtaUint16 *pWord, AtaUint16 word_delta)
AtaError	MMC_readNextNWords (void *pAtaMediaState, AtaUint16 *pData, AtaUint16 words)
AtaError	MMC_writeSector (AtaSector phySector, void *pAtaMediaState, AtaUint16 *pWord, int byteSwap)
AtaError	MMC_readNSectors (void *pAtaMediaState, AtaUint16 *pReadBuf, AtaSector startSector, AtaUint16 sectorCount)
AtaError	MMC_writeNSectors (void *pAtaMediaState, AtaUint16 *pWriteBuf, AtaSector startSector, AtaUint16 sectorCount)
AtaError	MMC_read_CID (void *pAtaMediaState, unsigned int *pBuf)
AtaError	MMC_read_CSD (void *pAtaMediaState, unsigned int *pBuf)
AtaError	MMC_writeSectorFlush (void *pAtaMediaState)
int	MMC_commandReadyStatusCheck (void *pAtaMediaState)
AtaError	MMC_dataReadyStatusCheck (void *pAtaMediaState)
AtaError	MMC_busyStatusCheck (void *pAtaMediaState)
AtaUint16	MMC_getSerialID (void *pAtaMediaState, AtaSerialID *pSerID)
AtaUint16	MMC_file_system_format (void *pAtaMediaState)
AtaError	MMC_reset (void *pAtaMediaState)
AtaUint16	MMC_get_time (void)
AtaUint16	MMC_get_mod_time (void)
AtaUint16	MMC_get_date (void)
AtaUint16	MMC_get_mod_date (void)
AtaError	MMC_flushFat (void *pAtaMediaState)
static AtaError	getAtaErrorNo (CSL_Status result)

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Detailed Description

Functional layer API header file for MMCSD ATA file system interface.

Path: \(CSLPATH)\ inc

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Function Documentation

AtaError MMC_readWriteControl	(	AtaSector	phySector,
		void *	pAtaMediaState,
		AtaUint16 *	pWord,
		int	last_sector
	)

===========================================================================
MMC_readWriteControl //KR041110

Description
This function is used to cache and write data to the media. This function can write 1 to 4 sectors each sector containing 512 bytes

Arguments

            phySector         Sector number from which data needs to be read
            pAtaMediaState    ATA media state structure
            pWord             Write data buffer
            last_sector       Flag to flush cache
     

Return Value AtaError

• ATA_ERROR_NONE - Returned for success
• ATA_ERROR_INVALID_PARAM - Returned for Invalid input parameters
• ATA_ERROR_TIMEOUT - Time out Error Occurred
• ATA_ERROR_UNSUPPORTED - MMC/SD hardware is not supported

Pre Condition
MMC_initState API should be called successfully.

Post Condition
Writes Data to MMC/SD card

Modifies
MMCSD Sector data

Example

 			#define CSL_MMCSD_BUF_SIZE (256u)

			AtaMMCState    ataMediaState;
			AtaState       ataState;
			AtaState       *pAtaState;
			AtaError       ataErr;
			AtaSector      phySector;
			AtaUint16      writeBuf[CSL_MMCSD_BUF_SIZE];

			pAtaState = &ataState;

			phySector = 0;
			ataState->pAtaMediaState = &ataMediaState;

			ataErr = MMC_initState(&ataState);

            ataErr = pAtaState->AtaWriteSector(phySector,
                                               ataState->pAtaMediaState,
                                               writeBuf, FALSE);

     

===========================================================================

References CSL_MMCSD_PAGE_SIZE, MMC_writeNSectors(), and MMC_writeSector().

Referenced by MMC_initState().