Minor correction to MagStripe demo to fix build problems.

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / DevChapter9.c

diff --git a/LUFA/Drivers/USB/LowLevel/DevChapter9.c b/LUFA/Drivers/USB/LowLevel/DevChapter9.c
index 829bd13..feaabce 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/DevChapter9.c
+++ b/LUFA/Drivers/USB/LowLevel/DevChapter9.c
@@ -179,6 +179,58 @@ static void USB_Device_GetDescriptor(void)
        void*    DescriptorPointer;\r
        uint16_t DescriptorSize;\r
        \r
+       #if !defined(NO_INTERNAL_SERIAL) && (defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR))\r
+       if (USB_ControlRequest.wValue == ((DTYPE_String << 8) | USE_INTERNAL_SERIAL))\r
+       {\r
+               struct\r
+               {\r
+                       USB_Descriptor_Header_t Header;\r
+                       int16_t                 UnicodeString[12];\r
+               } SignatureDescriptor;\r
+\r
+               #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)\r
+                       SignatureDescriptor.Header.Size            = sizeof(SignatureDescriptor);\r
+                       SignatureDescriptor.Header.Type            = DTYPE_String;\r
+               #else\r
+                       SignatureDescriptor.Header.bLength         = sizeof(SignatureDescriptor);\r
+                       SignatureDescriptor.Header.bDescriptorType = DTYPE_String;\r
+               #endif\r
+               \r
+               uint8_t  SigReadAddress  = 0x0E;                \r
+               bool     OddRead         = false;\r
+\r
+               for (uint8_t SerialCharNum = 0; SerialCharNum < 12; SerialCharNum++)\r
+               {\r
+                       uint8_t SerialByte = boot_signature_byte_get(SigReadAddress);\r
+                       \r
+                       if (OddRead)\r
+                       {\r
+                               SerialByte >>= 4;\r
+                               SigReadAddress++;\r
+                       }\r
+                       else\r
+                       {\r
+                               SerialByte &= 0x0F;\r
+                       }\r
+                       \r
+                       OddRead = !(OddRead);\r
+\r
+                       if (SerialByte < 0x0A)\r
+                         SerialByte += '0';\r
+                       else\r
+                         SerialByte += ('A' - 0x0A);\r
+\r
+                       SignatureDescriptor.UnicodeString[SerialCharNum] = SerialByte;\r
+               }\r
+               \r
+               Endpoint_ClearSETUP();\r
+               Endpoint_Write_Control_Stream_LE(&SignatureDescriptor, sizeof(SignatureDescriptor));\r
+               Endpoint_ClearOUT();\r
+\r
+               return;\r
+       }\r
+       #endif\r
+       \r
        if ((DescriptorSize = CALLBACK_USB_GetDescriptor(USB_ControlRequest.wValue, USB_ControlRequest.wIndex,\r
                                                         &DescriptorPointer)) == NO_DESCRIPTOR)\r
        {\r
@@ -186,7 +238,7 @@ static void USB_Device_GetDescriptor(void)
        }\r
        \r
        Endpoint_ClearSETUP();\r
-       \r
+\r
        #if defined(USE_RAM_DESCRIPTORS)\r
        Endpoint_Write_Control_Stream_LE(DescriptorPointer, DescriptorSize);\r
        #else\r