/*FUNCTION*----------------------------------------------------------------
*
* Function Name : DriveShutdown
* Returned Value : SUCCESS or ERROR
* - SUCCESS
* - ERROR_DDI_LDL_LDRIVE_INVALID_DRIVE_NUMBER
* - ERROR_DDI_LDL_LDRIVE_NOT_INITIALIZED
* - Other errors from shutdown API
* Comments :
* DriveFlush and if allowed shutdown the logical data drive.
*
*END*--------------------------------------------------------------------*/
RtStatus_t DriveShutdown
(
/* [IN] Unique drive tag */
DriveTag_t tag
)
{ /* Body */
/* Flush the drive before shutting down. */
RtStatus_t RetValue = DriveFlush(tag);
if (RetValue != SUCCESS)
{
return RetValue;
} /* Endif */
/* Look up the drive by tag and perform sanity checks. */
LogicalDrive * drive = DriveGetDriveFromTag(tag);
if (!drive)
{
return ERROR_DDI_LDL_LDRIVE_INVALID_DRIVE_NUMBER;
}
else if (!drive->isInitialized() )
{
return ERROR_DDI_LDL_LDRIVE_NOT_INITIALIZED;
} /* Endif */
/* Invoke the API. */
return drive->shutdown();
} /* Endbody */
void _reentrant USBInsertionMonitorTask(void)
{
USHORT usStatus;
BOOL bInserted = FALSE;
WORD i,j;
WORD iWaitCount;
// Check for USB disconnect
while(1)
{
usb_device_get_status(USB_STATUS_CONNECTION,&usStatus);
switch(usStatus)
{
case USB_CONNECTED:
bInserted=TRUE;
break;
default:
if(bInserted)//if we've been inserted, and now we're not, lets shut down
{
// #ifdef DEVICE_3410 // 3410 still has power when removed from usb.
#ifdef CHKDSK
UsbMscCheckDiskAll();
#endif
// #endif
// TODO - put this back in later if needed
// Clear the display
// ClearDisplay();
// We need to immediately pull Write Protect low to protect the NANDs and
// to reset the Renesas part (same line).
HW_GPFLASH_CSR1R.B.WP0 = 0;
// We need to clean up any media transactions that may be hanging
// As best we can :)
// stmp4770 and stmp4795, Remove drive flush on USB disconnect for NAND devices.
// Drive flush still necessary for MMC media, to properly close multi-writes
// that may be pending between SCSI commands.
for(i=0;i<g_wUsbMscNumDevices;i++)
{
for(j=0;j<UsbMscDevice[i].wNumLunsSupported;j++)
{
if(UsbMscDevice[i].Lun[j].bMediaIsRemovable == TRUE)
{
DriveFlush(UsbMscDevice[i].Lun[j].wFileSystemDriveNumber);
}
}
}
//Do not leave. Wait for 5V to be removed.
//Monitor D+/- and reset if it returns.
HW_USBCSR.B.PLUGGEDIN_EN = 1;
iWaitCount = 0;
//ensure 5V Disconnect IRQ is enabled
SysSetIrqLevel(HW_SR_IM_L2_SETMASK);
while(HW_USBCSR.B.VBUSSENSE)
{
//if USB is plugged-in. Break loop and reset to return to USBMSC.
if(HW_USBCSR.B.PLUGGEDIN)
{
break;
}
//wait a bit
SysWait(200);
if(iWaitCount > 10)
{
break; // if we waited a couple secs, time to break
}
else
{
iWaitCount++; //increment wait count
}
}
SysWait(200);
// Shut down
SystemShutdown();
// Reset the device
SystemReset();
}
}
SysWait(USB_WATCH_CALL_BACK_DELAY);
}
}
