Fix up the incomplete Webserver project so that it integrates with the uIP stack...

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Host / CDC.c

diff --git a/LUFA/Drivers/USB/Class/Host/CDC.c b/LUFA/Drivers/USB/Class/Host/CDC.c
index 20fa659..7f5bcb9 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/CDC.c
+++ b/LUFA/Drivers/USB/Class/Host/CDC.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
@@ -374,6 +374,48 @@ uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
        return ReceivedByte;\r
 }\r
 \r
+uint8_t CDC_Host_Flush(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)\r
+{\r
+       if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))\r
+         return PIPE_READYWAIT_DeviceDisconnected;\r
+         \r
+       uint8_t ErrorCode;\r
+\r
+       if (CDCInterfaceInfo->State.BidirectionalDataEndpoints)\r
+       {\r
+               Pipe_SelectPipe(CDCInterfaceInfo->Config.DataINPipeNumber);\r
+               Pipe_SetPipeToken(PIPE_TOKEN_OUT);\r
+       }\r
+       else\r
+       {\r
+               Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);    \r
+       }\r
+       \r
+       Pipe_Unfreeze();\r
+       \r
+       if (!(Pipe_BytesInPipe()))\r
+         return PIPE_READYWAIT_NoError;\r
+\r
+       bool BankFull = !(Pipe_IsReadWriteAllowed());\r
+\r
+       Pipe_ClearOUT();\r
+\r
+       if (BankFull)\r
+       {\r
+               if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)\r
+                 return ErrorCode;\r
+\r
+               Pipe_ClearOUT();\r
+       }\r
+\r
+       Pipe_Freeze();\r
+\r
+       if (CDCInterfaceInfo->State.BidirectionalDataEndpoints)\r
+         Pipe_SetPipeToken(PIPE_TOKEN_IN);\r
+       \r
+       return PIPE_READYWAIT_NoError;\r
+}\r
+\r
 void CDC_Host_CreateStream(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, FILE* Stream)\r
 {\r
        *Stream = (FILE)FDEV_SETUP_STREAM(CDC_Host_putchar, CDC_Host_getchar, _FDEV_SETUP_RW);\r
@@ -403,6 +445,9 @@ static int CDC_Host_getchar_Blocking(FILE* Stream)
 {\r
        while (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))))\r
        {\r
+               if (USB_HostState == HOST_STATE_Unattached)\r
+                 return _FDEV_EOF;\r
+\r
                CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));\r
                USB_USBTask();\r
        }\r