AtaError ATA_cd(AtaFile *pAtaFile)
{
if (pAtaFile==NULL) return(ATA_ERROR_INVALID_PARAM); // KR042610
/* AtaState *pAtaDrive = pAtaFile->pDrive;*//*SUSMIT_BUGFIX-Directory Browsing BUgfix*/
if(pAtaFile->StartCluster)
{
/*SUSMIT_BUGFIX-Directory Browsing BUgfix*/
/* pAtaFile->CurrentDirSector =
pAtaDrive->FirstDataSector +
(AtaSector)((AtaSector)(pAtaFile->StartCluster-2) * (AtaSector)pAtaDrive->LogSectorsPerCluster);*/
pAtaFile->CurrentDirSectorTag = 0xFFFFFFFF; // Mistral: It was: -1L;
pAtaFile->CurrentDirEntry = 0;
}
else
{
/*SUSMIT_BUGFIX-Directory Browsing BUgfix*/
/* pAtaFile->CurrentDirSector = pAtaDrive->RootDirSector;*/
return ATA_cdRoot(pAtaFile);
}
/*SUSMIT_BUGFIX-Directory Browsing BUgfix*/
/* pAtaFile->CurrentDirCluster = pAtaFile->StartCluster;*/
pAtaFile->StartDirCluster = pAtaFile->StartCluster;
return(ATA_ERROR_NONE);
}
AtaError ATA_fileInit(AtaState *pAtaDrive, AtaFile *pAtaFile)
{
AtaError kk = ATA_ERROR_NONE;
pAtaFile->pDrive = pAtaDrive;
if ((pAtaDrive==NULL)||(pAtaFile==NULL)) return(ATA_ERROR_INVALID_PARAM); //KR042110
start_FAT_cluster=ATA_FIRST_CLUSTER; //KR012210
kk = ATA_cdRoot(pAtaFile);
if(kk) return(kk);
/* return(AtaFindFirst(pAtaFile)); */ /*This is not a bug fix, this is a workaround so that ATA_fileInit doesn't return error for a formatted MMC - Susmit*/
kk=ATA_findFirst(pAtaFile);
if((kk==ATA_ERROR_NONE)||(kk==ATA_ERROR_FILE_NOT_FOUND)) return(ATA_ERROR_NONE);
else return(kk);
}
AtaError mmcConfigFs(char *fileName) {
Uint16 index;
AtaError ata_error;
unsigned int diskType;
ata_error = ATA_ERROR_NONE;
for (index = 0; index < CSL_MMCSD_ATA_BUF_SIZE; index++) {
gMmcWriteBuf[index] = 0x4142;
AtaWrBuf[index] = 0x4344;
gMmcReadBuf[index] = 0x0;
}
/* Call init function initialize ATA state structure */
gpstrAtaDrive->AtaInitAtaMediaState = (AtaError (*)(void *)) MMC_initState;
gpstrAtaMMCState->hMmcSd = mmcsdHandle;
gpstrAtaDrive->pAtaMediaState = gpstrAtaMMCState;
gpstrAtaDrive->AtaInitAtaMediaState(gpstrAtaDrive);
/* Set the temp write buffer */
gpstrAtaDrive->_AtaWriteBuffer = AtaWrBuf;
diskType = CSL_MMCSD_ATAFS_DISKTYPE;
/* Call ATA_systemInit() to intialize some values whcih are
used by chk_mmc() function */
ata_error = ATA_systemInit(gpstrAtaDrive, diskType);
chk_mmc(gpstrAtaDrive, &diskType);
if (diskType != CSL_MMCSD_ATAFS_DISKTYPE) {
ata_error = ATA_systemInit(gpstrAtaDrive, diskType);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_systemInit Failed\n");
printf("Format the SD card\n");
return (ata_error);
}
}
printf("\nATA File System Initialization successful\n");
/* Find the first file available */
ata_error = ATA_fileInit(gpstrAtaDrive, pAtaFile);
if (ata_error) {
printf("ATA_fileInit error (0x%x)\n", ata_error);
return (ata_error);
}
ata_error = ATA_setLongDirectoryName(pAtaFile, fileName);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_setLongDirectoryName Failed\n");
return (ata_error);
}
ata_error = ATA_createDirectoryLong(pAtaFile, fileName);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_createDirectoryLong Failed\n");
return (ata_error);
}
ata_error = ATA_cdRoot(pAtaFile);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_cdRoot Failed\n");
return (ata_error);
}
do {
ata_error = ATA_findNext(pAtaFile);
if (ata_error != ATA_ERROR_NONE) {
printf("Cannot find created directory\n");
return (ata_error);
}
ata_error = ATA_getLongName(pAtaFile, ataFileName, 0, 10);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_getLongName failed\n");
return (ata_error);
}
} while (strcmp(ataFileName, fileName) != 0);
ata_error = ATA_cd(pAtaFile);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_cdRoot Failed\n");
return (ata_error);
}
/* Set the file name */
ATA_setFileName(pAtaFile, fileName, "txt");
ata_error = ATA_create(pAtaFile);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_create Failed\n");
return (ata_error);
} else {
printf("\nFile Creation on SD card is Successful\n");
}
/* Write data to the file */
ata_error = ATA_write(pAtaFile, gMmcWriteBuf, CSL_MMCSD_ATA_BUF_SIZE);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_write Failed\n");
return (ata_error);
} else {
printf("\nWriting Data to the file on SD card successful\n");
}
/* Reset the file pointer to the beginning */
ATA_seek(pAtaFile, 0);
/* Read the data from the file in little endian mode */
ata_error = ATA_readLittleEndian(pAtaFile, gMmcReadBuf,
CSL_MMCSD_ATA_BUF_SIZE);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_readLittleEndian Failed\n");
return (ata_error);
} else {
printf("\nReading Data from the file on SD card successful\n");
}
/* Close the file */
ata_error = ATA_close(pAtaFile);
if (ata_error != ATA_ERROR_NONE) {
printf("ATA_close Failed\n");
return (ata_error);
}
/* Compare the data read and data written */
for (index = 0; index < CSL_MMCSD_ATA_BUF_SIZE; index++) {
if (gMmcWriteBuf[index] != gMmcReadBuf[index]) {
ata_error = 1;
printf("\nMMCSD Read and Write Buffers do not Match\n");
break;
}
}
if (ata_error == 0) {
printf("\nMMCSD Read and Write Buffers Match\n");
}
return (ata_error);
}
