Add API support signature to the CDC and DFU class bootloaders, so that the application can detect the bootloader's API support.

Bootloaders/CDC/BootloaderAPI.c

@@ -71,4 +71,3 @@ void BootloaderAPI_WriteLock(const uint8_t LockBits)
 {
 	boot_lock_bits_set_safe(LockBits);
 }
-

Bootloaders/CDC/BootloaderAPITable.S

@@ -32,12 +32,17 @@
 .section .apitable, "ax"
 .org 0
 
+; API function jump table
 .global BootloaderAPI_JumpTable
 BootloaderAPI_JumpTable:
-	jmp BootloaderAPI_ErasePage
+	rjmp BootloaderAPI_ErasePage
-	jmp BootloaderAPI_WritePage
+	rjmp BootloaderAPI_WritePage
-	jmp BootloaderAPI_FillWord
+	rjmp BootloaderAPI_FillWord
-	jmp BootloaderAPI_ReadSignature
+	rjmp BootloaderAPI_ReadSignature
-	jmp BootloaderAPI_ReadFuse
+	rjmp BootloaderAPI_ReadFuse
-	jmp BootloaderAPI_ReadLock
+	rjmp BootloaderAPI_ReadLock
-	jmp BootloaderAPI_WriteLock
+	rjmp BootloaderAPI_WriteLock
+
+; Bootloader table signature
+.org 30
+	.word 0xDCFB

Bootloaders/CDC/BootloaderCDC.txt

@@ -103,8 +103,15 @@
  *  uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address)                = BOOTLOADER_API_START(4);
  *  uint8_t (*BootloaderAPI_ReadLock)(void)                            = BOOTLOADER_API_START(5);
  *  void    (*BootloaderAPI_WriteLock)(uint8_t LockBits)               = BOOTLOADER_API_START(6);
+ *
+ *  #define BOOTLOADER_SIG_START               (FLASHEND - 32)
+ *  #define BOOTLOADER_SIGNATURE               0xDCFB
  *  \endcode
  *
+ *  Bootloaders reporting a device release revision number of 1.00 or greater are bootloader API enabled. From the application
+ *  the API support of the bootloader can be detected by reading the FLASH memory bytes located at address \c BOOTLOADER_SIG_START
+ *  and comparing them to the value \c BOOTLOADER_SIGNATURE.
+ *
  *  \section Sec_Options Project Options
  *
  *  The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.

Bootloaders/CDC/Descriptors.c

@@ -55,7 +55,7 @@ const USB_Descriptor_Device_t DeviceDescriptor =
 
 	.VendorID               = 0x03EB,
 	.ProductID              = 0x204A,
-	.ReleaseNumber          = VERSION_BCD(00.01),
+	.ReleaseNumber          = VERSION_BCD(01.00),
 
 	.ManufacturerStrIndex   = NO_DESCRIPTOR,
 	.ProductStrIndex        = 0x01,

Bootloaders/DFU/BootloaderAPITable.S

@@ -32,12 +32,17 @@
 .section .apitable, "ax"
 .org 0
 
+; API function jump table
 .global BootloaderAPI_JumpTable
 BootloaderAPI_JumpTable:
-	jmp BootloaderAPI_ErasePage
+	rjmp BootloaderAPI_ErasePage
-	jmp BootloaderAPI_WritePage
+	rjmp BootloaderAPI_WritePage
-	jmp BootloaderAPI_FillWord
+	rjmp BootloaderAPI_FillWord
-	jmp BootloaderAPI_ReadSignature
+	rjmp BootloaderAPI_ReadSignature
-	jmp BootloaderAPI_ReadFuse
+	rjmp BootloaderAPI_ReadFuse
-	jmp BootloaderAPI_ReadLock
+	rjmp BootloaderAPI_ReadLock
-	jmp BootloaderAPI_WriteLock
+	rjmp BootloaderAPI_WriteLock
+
+; Bootloader table signature
+.org 30
+	.word 0xDCFB

Bootloaders/DFU/BootloaderDFU.txt

@@ -108,8 +108,14 @@
  *  uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address)                = BOOTLOADER_API_START(4);
  *  uint8_t (*BootloaderAPI_ReadLock)(void)                            = BOOTLOADER_API_START(5);
  *  void    (*BootloaderAPI_WriteLock)(uint8_t LockBits)               = BOOTLOADER_API_START(6);
+ *
+ *  #define BOOTLOADER_SIG_START               (FLASHEND - 32)
+ *  #define BOOTLOADER_SIGNATURE               0xDCFB
  *  \endcode
  *
+ *  From the application the API support of the bootloader can be detected by reading the FLASH memory bytes located at address
+ *  \c BOOTLOADER_SIG_START and comparing them to the value \c BOOTLOADER_SIGNATURE.
+ *
  *  \section Sec_Options Project Options
  *
  *  The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.

LUFA/DoxygenPages/ChangeLog.txt

@@ -31,6 +31,7 @@
   *   - Altered the Mass Storage Host class driver so that SCSI data STALLs from the attached device can be recovered from automatically without
   *     having to reset the Mass Storage interface
   *   - USB_CONFIG_ATTR_BUSPOWERED constant renamed to USB_CONFIG_ATTR_RESERVED, as this was misnamed (thanks to NXP Semiconductors)
+  *   - Reordered board name definition indexes so that a mispelled BOARD compile option will default to BOARD_USER rather than BOARD_USBKEY
   *  - Library Applications:
   *   - Altered the Mass Storage Host LowLevel demo so that SCSI data STALLs from the attached device can be recovered from automatically without
   *     having to reset the Mass Storage interface