/*
* ======== USBMSCHFatFsTiva_diskRead ========
* This function reads sector(s) from the disk drive
*
* @param drv Drive Number
*
* @param buf Pointer to a buffer to which data is written
*
* @param sector Sector number to read from
*
* @param count Number of sectors to be read
*/
DRESULT USBMSCHFatFsTiva_diskRead(BYTE drv, BYTE *buf,
DWORD sector, BYTE count)
{
unsigned int key;
uint32_t driveRead;
USBMSCHFatFsTiva_Object *object = USBMSCHFatFs_config->object;
Log_print2(Diags_USER1, "USBMSCHFatFs: diskRead: Sector %d, Count %d",
sector, count);
if (object->state != USBMSCHFatFsTiva_CONNECTED) {
Log_print0(Diags_USER1, "USBMSCHFatFs: diskRead: not initialized");
return (RES_NOTRDY);
}
/* READ BLOCK */
key = GateMutex_enter(GateMutex_handle(&(object->gateUSBLibAccess)));
driveRead = USBHMSCBlockRead(object->MSCInstance, sector, buf, count);
GateMutex_leave(GateMutex_handle(&(object->gateUSBLibAccess)), key);
if (driveRead == 0) {
Log_print0(Diags_USER2, "USBMSCHFatFs: diskRead: OK");
return (RES_OK);
}
else {
Log_print0(Diags_USER2, "USBMSCHFatFs: diskRead: ERROR");
return (RES_ERROR);
}
}
//*****************************************************************************
//
// Read a sector from the USB mass storage device.
//
// \param ui32Sector is the sector to read from the connected USB mass storage
// device (memory stick)
// \param pui8Buf is a pointer to the buffer where the sector data should be
// stored
//
// This is the application-specific implementation of a function to read
// sectors from a storage device, in this case a USB mass storage device.
// This function is called from the \e simple_fs.c file when it needs to read
// data from the storage device.
//
// \return Non-zero if data was read from the device, 0 if no data was read.
//
//*****************************************************************************
uint32_t
SimpleFsReadMediaSector(uint_fast32_t ui32Sector, uint8_t *pui8Buf)
{
//
// Return the requested sector from the connected USB mass storage
// device.
//
return(USBHMSCBlockRead(g_psMSCInstance, ui32Sector, pui8Buf, 1));
}
//*****************************************************************************
//
// Read a sector from the USB mass storage device.
//
// \param ulSector is the sector to read from the connected USB mass storage
// device (memory stick)
// \param pucBuf is a pointer to the buffer where the sector data should be
// stored
//
// This is the application-specific implementation of a function to read
// sectors from a storage device, in this case a USB mass storage device.
// This function is called from the \e simple_fs.c file when it needs to read
// data from the storage device.
//
// \return Non-zero if data was read from the device, 0 if no data was read.
//
//*****************************************************************************
unsigned long
SimpleFsReadMediaSector(unsigned long ulSector, unsigned char *pucBuf)
{
//
// Return the requested sector from the connected USB mass storage
// device.
//
return(USBHMSCBlockRead(g_ulMSCInstance, ulSector, pucBuf, 1));
}
