diff options
Diffstat (limited to 'Demos/Device/LowLevel/MassStorage/MassStorage.c')
| -rw-r--r-- | Demos/Device/LowLevel/MassStorage/MassStorage.c | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/Demos/Device/LowLevel/MassStorage/MassStorage.c b/Demos/Device/LowLevel/MassStorage/MassStorage.c index 3bf2af16c..a168061f5 100644 --- a/Demos/Device/LowLevel/MassStorage/MassStorage.c +++ b/Demos/Device/LowLevel/MassStorage/MassStorage.c @@ -1,7 +1,7 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ @@ -9,13 +9,13 @@ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in + without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this @@ -53,7 +53,7 @@ volatile bool IsMassStoreReset = false; int main(void) { SetupHardware(); - + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); sei(); @@ -89,7 +89,7 @@ void EVENT_USB_Device_Connect(void) { /* Indicate USB enumerating */ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); - + /* Reset the MSReset flag upon connection */ IsMassStoreReset = false; } @@ -117,7 +117,7 @@ void EVENT_USB_Device_ConfigurationChanged(void) MASS_STORAGE_IO_EPSIZE, ENDPOINT_BANK_SINGLE); /* Indicate endpoint configuration success or failure */ - LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); + LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); } /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific @@ -147,11 +147,11 @@ void EVENT_USB_Device_UnhandledControlRequest(void) /* Indicate to the host the number of supported LUNs (virtual disks) on the device */ Endpoint_Write_Byte(TOTAL_LUNS - 1); - - Endpoint_ClearIN(); + + Endpoint_ClearIN(); Endpoint_ClearStatusStage(); } - + break; } } @@ -176,14 +176,14 @@ void MassStorage_Task(void) Endpoint_SelectEndpoint(MASS_STORAGE_IN_EPNUM); /* Decode the received SCSI command, set returned status code */ - CommandStatus.Status = SCSI_DecodeSCSICommand() ? Command_Pass : Command_Fail; + 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(); @@ -201,7 +201,7 @@ void MassStorage_Task(void) /* 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(); @@ -223,7 +223,7 @@ static bool ReadInCommandBlock(void) { /* Select the Data Out endpoint */ Endpoint_SelectEndpoint(MASS_STORAGE_OUT_EPNUM); - + /* Abort if no command has been sent from the host */ if (!(Endpoint_IsOUTReceived())) return false; @@ -247,7 +247,7 @@ static bool ReadInCommandBlock(void) Endpoint_StallTransaction(); Endpoint_SelectEndpoint(MASS_STORAGE_IN_EPNUM); Endpoint_StallTransaction(); - + return false; } @@ -255,14 +255,14 @@ static bool ReadInCommandBlock(void) Endpoint_Read_Stream_LE(&CommandBlock.SCSICommandData, CommandBlock.SCSICommandLength, StreamCallback_AbortOnMassStoreReset); - + /* Check if the current command is being aborted by the host */ if (IsMassStoreReset) return false; /* Finalize the stream transfer to send the last packet */ Endpoint_ClearOUT(); - + return true; } @@ -292,11 +292,11 @@ static void ReturnCommandStatus(void) if (IsMassStoreReset) return; } - + /* Write the CSW to the endpoint */ Endpoint_Write_Stream_LE(&CommandStatus, sizeof(CommandStatus), StreamCallback_AbortOnMassStoreReset); - + /* Check if the current command is being aborted by the host */ if (IsMassStoreReset) return; @@ -309,11 +309,12 @@ static void ReturnCommandStatus(void) * if a Mass Storage Reset request has been issued to the control endpoint. */ uint8_t StreamCallback_AbortOnMassStoreReset(void) -{ +{ /* Abort if a Mass Storage reset command was received */ if (IsMassStoreReset) return STREAMCALLBACK_Abort; - + /* Continue with the current stream operation */ return STREAMCALLBACK_Continue; } + |