Complete USB XMEGA interrupt control subsystem code in the core USB driver.

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Device / MassStorage.c

diff --git a/LUFA/Drivers/USB/Class/Device/MassStorage.c b/LUFA/Drivers/USB/Class/Device/MassStorage.c
index 3ee10d6..4f1542a 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/MassStorage.c
+++ b/LUFA/Drivers/USB/Class/Device/MassStorage.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -29,15 +29,14 @@
 */
 
 #define  __INCLUDE_FROM_USB_DRIVER
-#include "../../HighLevel/USBMode.h"
+#include "../../Core/USBMode.h"
+
 #if defined(USB_CAN_BE_DEVICE)
 
 #define  __INCLUDE_FROM_MS_DRIVER
 #define  __INCLUDE_FROM_MASSSTORAGE_DEVICE_C
 #include "MassStorage.h"
 
-static volatile bool* CallbackIsResetSource;
-
 void MS_Device_ProcessControlRequest(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        if (!(Endpoint_IsSETUPReceived()))
@@ -62,7 +61,7 @@ void MS_Device_ProcessControlRequest(USB_ClassInfo_MS_Device_t* const MSInterfac
                        if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
                        {
                                Endpoint_ClearSETUP();
-                               Endpoint_Write_Byte(MSInterfaceInfo->Config.TotalLUNs - 1);
+                               Endpoint_Write_8(MSInterfaceInfo->Config.TotalLUNs - 1);
                                Endpoint_ClearIN();
                                Endpoint_ClearStatusStage();
                        }
@@ -125,17 +124,15 @@ void MS_Device_USBTask(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
                        if (MSInterfaceInfo->State.CommandBlock.Flags & MS_COMMAND_DIR_DATA_IN)
                          Endpoint_SelectEndpoint(MSInterfaceInfo->Config.DataINEndpointNumber);
 
-                       MSInterfaceInfo->State.CommandStatus.Status = CALLBACK_MS_Device_SCSICommandReceived(MSInterfaceInfo) ?
-                                                                      MS_SCSI_COMMAND_Pass : MS_SCSI_COMMAND_Fail;
-                       MSInterfaceInfo->State.CommandStatus.Signature           = MS_CSW_SIGNATURE;
+                       bool SCSICommandResult = CALLBACK_MS_Device_SCSICommandReceived(MSInterfaceInfo);
+
+                       MSInterfaceInfo->State.CommandStatus.Status              = (SCSICommandResult) ? MS_SCSI_COMMAND_Pass : MS_SCSI_COMMAND_Fail;
+                       MSInterfaceInfo->State.CommandStatus.Signature           = CPU_TO_LE32(MS_CSW_SIGNATURE);
                        MSInterfaceInfo->State.CommandStatus.Tag                 = MSInterfaceInfo->State.CommandBlock.Tag;
                        MSInterfaceInfo->State.CommandStatus.DataTransferResidue = MSInterfaceInfo->State.CommandBlock.DataTransferLength;
 
-                       if ((MSInterfaceInfo->State.CommandStatus.Status == MS_SCSI_COMMAND_Fail) &&
-                           (MSInterfaceInfo->State.CommandStatus.DataTransferResidue))
-                       {
-                               Endpoint_StallTransaction();
-                       }
+                       if (!(SCSICommandResult) && (le32_to_cpu(MSInterfaceInfo->State.CommandStatus.DataTransferResidue)))
+                         Endpoint_StallTransaction();
 
                        MS_Device_ReturnCommandStatus(MSInterfaceInfo);
                }
@@ -143,8 +140,8 @@ void MS_Device_USBTask(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 
        if (MSInterfaceInfo->State.IsMassStoreReset)
        {
-               Endpoint_ResetFIFO(MSInterfaceInfo->Config.DataOUTEndpointNumber);
-               Endpoint_ResetFIFO(MSInterfaceInfo->Config.DataINEndpointNumber);
+               Endpoint_ResetEndpoint(MSInterfaceInfo->Config.DataOUTEndpointNumber);
+               Endpoint_ResetEndpoint(MSInterfaceInfo->Config.DataINEndpointNumber);
 
                Endpoint_SelectEndpoint(MSInterfaceInfo->Config.DataOUTEndpointNumber);
                Endpoint_ClearStall();
@@ -159,17 +156,24 @@ void MS_Device_USBTask(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 
 static bool MS_Device_ReadInCommandBlock(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
-       Endpoint_SelectEndpoint(MSInterfaceInfo->Config.DataOUTEndpointNumber);
+       uint16_t BytesProcessed;
 
-       CallbackIsResetSource = &MSInterfaceInfo->State.IsMassStoreReset;
-       if (Endpoint_Read_Stream_LE(&MSInterfaceInfo->State.CommandBlock,
-                                   (sizeof(MS_CommandBlockWrapper_t) - 16),
-                                   StreamCallback_MS_Device_AbortOnMassStoreReset))
+       Endpoint_SelectEndpoint(MSInterfaceInfo->Config.DataOUTEndpointNumber);
+       
+       BytesProcessed = 0;
+       while (Endpoint_Read_Stream_LE(&MSInterfaceInfo->State.CommandBlock,
+                                      (sizeof(MS_CommandBlockWrapper_t) - 16), &BytesProcessed) ==
+                                      ENDPOINT_RWSTREAM_IncompleteTransfer)
        {
-               return false;
+               #if !defined(INTERRUPT_CONTROL_ENDPOINT)
+               USB_USBTask();
+               #endif
+
+               if (MSInterfaceInfo->State.IsMassStoreReset)
+                 return false;
        }
 
-       if ((MSInterfaceInfo->State.CommandBlock.Signature         != MS_CBW_SIGNATURE)                  ||
+       if ((MSInterfaceInfo->State.CommandBlock.Signature         != CPU_TO_LE32(MS_CBW_SIGNATURE))     ||
            (MSInterfaceInfo->State.CommandBlock.LUN               >= MSInterfaceInfo->Config.TotalLUNs) ||
                (MSInterfaceInfo->State.CommandBlock.Flags              & 0x1F)                              ||
                (MSInterfaceInfo->State.CommandBlock.SCSICommandLength == 0)                                 ||
@@ -182,12 +186,17 @@ static bool MS_Device_ReadInCommandBlock(USB_ClassInfo_MS_Device_t* const MSInte
                return false;
        }
 
-       CallbackIsResetSource = &MSInterfaceInfo->State.IsMassStoreReset;
-       if (Endpoint_Read_Stream_LE(&MSInterfaceInfo->State.CommandBlock.SCSICommandData,
-                                   MSInterfaceInfo->State.CommandBlock.SCSICommandLength,
-                                   StreamCallback_MS_Device_AbortOnMassStoreReset))
+       BytesProcessed = 0;
+       while (Endpoint_Read_Stream_LE(&MSInterfaceInfo->State.CommandBlock.SCSICommandData,
+                                       MSInterfaceInfo->State.CommandBlock.SCSICommandLength, &BytesProcessed) ==
+                                       ENDPOINT_RWSTREAM_IncompleteTransfer)
        {
-               return false;
+               #if !defined(INTERRUPT_CONTROL_ENDPOINT)
+               USB_USBTask();
+               #endif
+
+               if (MSInterfaceInfo->State.IsMassStoreReset)
+                 return false;
        }
 
        Endpoint_ClearOUT();
@@ -221,27 +230,20 @@ static void MS_Device_ReturnCommandStatus(USB_ClassInfo_MS_Device_t* const MSInt
                  return;
        }
 
-       CallbackIsResetSource = &MSInterfaceInfo->State.IsMassStoreReset;
-       if (Endpoint_Write_Stream_LE(&MSInterfaceInfo->State.CommandStatus, sizeof(MS_CommandStatusWrapper_t),
-                                    StreamCallback_MS_Device_AbortOnMassStoreReset))
+       uint16_t BytesProcessed = 0;
+       while (Endpoint_Write_Stream_LE(&MSInterfaceInfo->State.CommandStatus,
+                                       sizeof(MS_CommandStatusWrapper_t), &BytesProcessed) ==
+                                       ENDPOINT_RWSTREAM_IncompleteTransfer)
        {
-               return;
-       }
+               #if !defined(INTERRUPT_CONTROL_ENDPOINT)
+               USB_USBTask();
+               #endif
 
+               if (MSInterfaceInfo->State.IsMassStoreReset)
+                 return;
+       }
+       
        Endpoint_ClearIN();
 }
 
-static uint8_t StreamCallback_MS_Device_AbortOnMassStoreReset(void)
-{
-       #if !defined(INTERRUPT_CONTROL_ENDPOINT)
-       USB_USBTask();
-       #endif
-
-       if (*CallbackIsResetSource)
-         return STREAMCALLBACK_Abort;
-       else
-         return STREAMCALLBACK_Continue;
-}
-
 #endif
-