Make SPI and USART peripheral dispatch driver headers in preparation for a set of...

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / Pipe.c

diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.c b/LUFA/Drivers/USB/LowLevel/Pipe.c
index fd8f81b..78c82e8 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/Pipe.c
+++ b/LUFA/Drivers/USB/LowLevel/Pipe.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
@@ -28,11 +28,12 @@
   this software.\r
 */\r
 \r
+#define  __INCLUDE_FROM_USB_DRIVER\r
 #include "../HighLevel/USBMode.h"\r
 \r
 #if defined(USB_CAN_BE_HOST)\r
 \r
-#define  INCLUDE_FROM_PIPE_C\r
+#define  __INCLUDE_FROM_PIPE_C\r
 #include "Pipe.h"\r
 \r
 uint8_t USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;\r
@@ -78,8 +79,15 @@ bool Pipe_IsEndpointBound(const uint8_t EndpointAddress)
        {\r
                Pipe_SelectPipe(PNum);\r
                \r
-               if (Pipe_IsConfigured() && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK)))\r
-                 return true;\r
+               uint8_t PipeToken = Pipe_GetPipeToken();\r
+\r
+               if (PipeToken != PIPE_TOKEN_SETUP)\r
+                 PipeToken = (PipeToken == ((EndpointAddress & PIPE_EPDIR_MASK) ? PIPE_TOKEN_IN : PIPE_TOKEN_OUT));\r
+               \r
+               if (Pipe_IsConfigured() && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK)) && PipeToken)\r
+               {               \r
+                       return true;\r
+               }\r
        }\r
        \r
        Pipe_SelectPipe(PrevPipeNumber);\r
@@ -199,6 +207,9 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
        return PIPE_RWSTREAM_NoError;\r
 }\r
 \r
+/* The following abuses the C preprocessor in order to copy-past common code with slight alterations,\r
+ * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */\r
+\r
 #define  TEMPLATE_FUNC_NAME                        Pipe_Write_Stream_LE\r
 #define  TEMPLATE_BUFFER_TYPE                      const void*\r
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_OUT\r
@@ -227,7 +238,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
 #define  TEMPLATE_BUFFER_TYPE                      const void*\r
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_OUT\r
 #define  TEMPLATE_CLEAR_PIPE()                     Pipe_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            Length - 1\r
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Pipe_Write_Byte(*((uint8_t*)BufferPtr--))\r
 #include "Template/Template_Pipe_RW.c"\r
 \r
@@ -235,7 +246,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
 #define  TEMPLATE_BUFFER_TYPE                      const void*\r
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_OUT\r
 #define  TEMPLATE_CLEAR_PIPE()                     Pipe_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            Length - 1\r
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Pipe_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr--))\r
 #include "Template/Template_Pipe_RW.c"\r
 \r
@@ -243,7 +254,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
 #define  TEMPLATE_BUFFER_TYPE                      const void*\r
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_OUT\r
 #define  TEMPLATE_CLEAR_PIPE()                     Pipe_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            Length - 1\r
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Pipe_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr--))\r
 #include "Template/Template_Pipe_RW.c"\r
 \r
@@ -267,7 +278,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
 #define  TEMPLATE_BUFFER_TYPE                      void*\r
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_IN\r
 #define  TEMPLATE_CLEAR_PIPE()                     Pipe_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            Length - 1\r
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr--) = Pipe_Read_Byte()\r
 #include "Template/Template_Pipe_RW.c"\r
 \r
@@ -275,7 +286,7 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
 #define  TEMPLATE_BUFFER_TYPE                      void*\r
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_IN\r
 #define  TEMPLATE_CLEAR_PIPE()                     Pipe_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            Length - 1\r
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr--, Pipe_Read_Byte())\r
 #include "Template/Template_Pipe_RW.c"\r
 \r