/**
* @brief Mass Storage class driver callback function
* @return Nothing
* @note The reception of SCSI commands from the host, which must be processed
*/
bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t *const MSInterfaceInfo)
{
bool CommandSuccess;
CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
return CommandSuccess;
}
/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
*
* \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced
*/
bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
{
bool CommandSuccess;
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
LEDs_SetAllLEDs(LEDMASK_USB_READY);
return CommandSuccess;
}
/** Task to manage the Mass Storage interface, reading in Command Block Wrappers from the host, processing the SCSI commands they
* contain, and returning Command Status Wrappers back to the host to indicate the success or failure of the last issued command.
*/
void MassStorage_Task(void)
{
/* Device must be connected and configured for the task to run */
if (USB_DeviceState != DEVICE_STATE_Configured)
return;
/* Process sent command block from the host if one has been sent */
if (ReadInCommandBlock())
{
/* Indicate busy */
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
/* Check direction of command, select Data IN endpoint if data is from the device */
if (CommandBlock.Flags & COMMAND_DIRECTION_DATA_IN)
Endpoint_SelectEndpoint(MASS_STORAGE_IN_EPNUM);
/* Decode the received SCSI command, set returned status code */
CommandStatus.Status = SCSI_DecodeSCSICommand() ? Command_Pass : Command_Fail;
/* Load in the CBW tag into the CSW to link them together */
CommandStatus.Tag = CommandBlock.Tag;
/* Load in the data residue counter into the CSW */
CommandStatus.DataTransferResidue = CommandBlock.DataTransferLength;
/* Stall the selected data pipe if command failed (if data is still to be transferred) */
if ((CommandStatus.Status == Command_Fail) && (CommandStatus.DataTransferResidue))
Endpoint_StallTransaction();
/* Return command status block to the host */
ReturnCommandStatus();
/* Indicate ready */
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/* Check if a Mass Storage Reset occurred */
if (IsMassStoreReset)
{
/* Reset the data endpoint banks */
Endpoint_ResetFIFO(MASS_STORAGE_OUT_EPNUM);
Endpoint_ResetFIFO(MASS_STORAGE_IN_EPNUM);
Endpoint_SelectEndpoint(MASS_STORAGE_OUT_EPNUM);
Endpoint_ClearStall();
Endpoint_ResetDataToggle();
Endpoint_SelectEndpoint(MASS_STORAGE_IN_EPNUM);
Endpoint_ClearStall();
Endpoint_ResetDataToggle();
/* Clear the abort transfer flag */
IsMassStoreReset = false;
}
}
bool CALLBACK_MS_Device_SCSICommandReceived(
USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
{
bool CommandSuccess;
LEDs_ChangeLEDs(LEDS_ALL_LEDS, 0);
CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
LEDs_ChangeLEDs(LEDS_ALL_LEDS, Main_activeLED);
return CommandSuccess;
}
/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
*
* \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced
*/
bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
{
bool CommandSuccess;
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
LEDs_SetAllLEDs(LEDMASK_USB_READY);
/* Signal that a command was processed, must not exit bootloader yet */
TicksSinceLastCommand = 0;
return CommandSuccess;
}
