FF_T_SINT32 FF_BlockWrite(FF_IOMAN *pIoman, FF_T_UINT32 ulSectorLBA, FF_T_UINT32 ulNumSectors, void *pBuffer, FF_T_BOOL aSemLocked) {
FF_T_SINT32 slRetVal = 0;
if(pIoman->pPartition->TotalSectors) {
if((ulSectorLBA + ulNumSectors) > (pIoman->pPartition->TotalSectors + pIoman->pPartition->BeginLBA)) {
return (FF_ERR_IOMAN_OUT_OF_BOUNDS_WRITE | FF_BLOCKWRITE);
}
}
if(pIoman->pBlkDevice->fnpWriteBlocks) do { // Make sure we don't execute a NULL.
#ifdef FF_BLKDEV_USES_SEM
if (!aSemLocked || pIoman->pSemaphore != pIoman->pBlkDevSemaphore)
FF_PendSemaphore(pIoman->pBlkDevSemaphore);
#endif
slRetVal = pIoman->pBlkDevice->fnpWriteBlocks(pBuffer, ulSectorLBA, ulNumSectors, pIoman->pBlkDevice->pParam);
#ifdef FF_BLKDEV_USES_SEM
if (!aSemLocked || pIoman->pSemaphore != pIoman->pBlkDevSemaphore)
FF_ReleaseSemaphore(pIoman->pBlkDevSemaphore);
#endif
if(!FF_isERR(slRetVal) && FF_GETERROR(slRetVal) != FF_ERR_DRIVER_BUSY) {
break;
}
FF_Sleep(FF_DRIVER_BUSY_SLEEP);
} while (FF_TRUE);
return slRetVal;
}
/**
* @public
* @brief Returns a pointer to a string relating to a FullFAT error code.
*
* @param iErrorCode The error code.
*
* @return Pointer to a string describing the error.
*
**/
const FF_T_INT8 *FF_GetErrMessage(FF_ERROR iErrorCode) {
FF_T_UINT32 stCount = ARRAY_SIZE(gcpFullFATErrorTable);
while (stCount--){
if (((FF_T_UINT) gcpFullFATErrorTable[stCount].ucErrorCode) == FF_GETERROR(iErrorCode)) {
return gcpFullFATErrorTable[stCount].strErrorString;
}
}
return gcpFullFATErrorTable[0].strErrorString;
}
FF_T_SINT32 FF_BlockRead(FF_IOMAN *pIoman, FF_T_UINT32 ulSectorLBA, FF_T_UINT32 ulNumSectors, void *pBuffer) {
FF_T_SINT32 slRetVal = 0;
if(pIoman->pPartition->TotalSectors) {
if((ulSectorLBA + ulNumSectors) > (pIoman->pPartition->TotalSectors + pIoman->pPartition->BeginLBA)) {
return -(FF_ERR_IOMAN_OUT_OF_BOUNDS_READ | FF_BLOCKREAD);
}
}
if(pIoman->pBlkDevice->fnpReadBlocks) { // Make sure we don't execute a NULL.
#ifdef FF_BLKDEV_USES_SEM
FF_PendSemaphore(pIoman->pBlkDevSemaphore);
#endif
slRetVal = pIoman->pBlkDevice->fnpReadBlocks(pBuffer, ulSectorLBA, ulNumSectors, pIoman->pBlkDevice->pParam);
#ifdef FF_BLKDEV_USES_SEM
FF_ReleaseSemaphore(pIoman->pBlkDevSemaphore);
#endif
if(FF_GETERROR(slRetVal) == FF_ERR_DRIVER_BUSY) {
FF_Sleep(FF_DRIVER_BUSY_SLEEP);
}
} while(FF_GETERROR(slRetVal) == FF_ERR_DRIVER_BUSY);
return slRetVal;
}
