Rename PDIProtocol.c/.h to XPROGProtocol.c/.h as it will now handle both TPI and...

[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..897c50b 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/Pipe.c
+++ b/LUFA/Drivers/USB/LowLevel/Pipe.c
@@ -199,6 +199,9 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
        return PIPE_RWSTREAM_NoError;\r
 }\r
 \r
        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
 #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 +230,7 @@ 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_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
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Pipe_Write_Byte(*((uint8_t*)BufferPtr--))\r
 #include "Template/Template_Pipe_RW.c"\r
 \r


@@ -235,7 +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_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
 #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 +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_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
 #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 +270,7 @@ 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_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
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr--) = Pipe_Read_Byte()\r
 #include "Template/Template_Pipe_RW.c"\r
 \r


@@ -275,7 +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_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
 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr--, Pipe_Read_Byte())\r
 #include "Template/Template_Pipe_RW.c"\r
 \r