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src/lufa-LUFA-170418/Bootloaders/DFU/BootloaderAPITable.S 2.93 KB
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  /*
               LUFA Library
       Copyright (C) Dean Camera, 2017.
  
    dean [at] fourwalledcubicle [dot] com
             www.lufa-lib.org
  */
  
  /*
    Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  
    Permission to use, copy, modify, distribute, and sell this
    software and its documentation for any purpose is hereby granted
    without fee, provided that the above copyright notice appear in
    all copies and that both that the copyright notice and this
    permission notice and warranty disclaimer appear in supporting
    documentation, and that the name of the author not be used in
    advertising or publicity pertaining to distribution of the
    software without specific, written prior permission.
  
    The author disclaims all warranties with regard to this
    software, including all implied warranties of merchantability
    and fitness.  In no event shall the author be liable for any
    special, indirect or consequential damages or any damages
    whatsoever resulting from loss of use, data or profits, whether
    in an action of contract, negligence or other tortious action,
    arising out of or in connection with the use or performance of
    this software.
  */
  
  ; Trampolines to actual API implementations if the target address is outside the
  ; range of a rjmp instruction (can happen with large bootloader sections)
  .section .apitable_trampolines, "ax"
  .global BootloaderAPI_Trampolines
  BootloaderAPI_Trampolines:
  
  	BootloaderAPI_ErasePage_Trampoline:
  		jmp BootloaderAPI_ErasePage
  	BootloaderAPI_WritePage_Trampoline:
  		jmp BootloaderAPI_WritePage
  	BootloaderAPI_FillWord_Trampoline:
  		jmp BootloaderAPI_FillWord
  	BootloaderAPI_ReadSignature_Trampoline:
  		jmp BootloaderAPI_ReadSignature
  	BootloaderAPI_ReadFuse_Trampoline:
  		jmp BootloaderAPI_ReadFuse
  	BootloaderAPI_ReadLock_Trampoline:
  		jmp BootloaderAPI_ReadLock
  	BootloaderAPI_WriteLock_Trampoline:
  		jmp BootloaderAPI_WriteLock
  	BootloaderAPI_UNUSED1:
  		ret
  	BootloaderAPI_UNUSED2:
  		ret
  	BootloaderAPI_UNUSED3:
  		ret
  	BootloaderAPI_UNUSED4:
  		ret
  	BootloaderAPI_UNUSED5:
  		ret
  
  
  
  ; API function jump table
  .section .apitable_jumptable, "ax"
  .global BootloaderAPI_JumpTable
  BootloaderAPI_JumpTable:
  
  	rjmp BootloaderAPI_ErasePage_Trampoline
  	rjmp BootloaderAPI_WritePage_Trampoline
  	rjmp BootloaderAPI_FillWord_Trampoline
  	rjmp BootloaderAPI_ReadSignature_Trampoline
  	rjmp BootloaderAPI_ReadFuse_Trampoline
  	rjmp BootloaderAPI_ReadLock_Trampoline
  	rjmp BootloaderAPI_WriteLock_Trampoline
  	rjmp BootloaderAPI_UNUSED1 ; UNUSED ENTRY 1
  	rjmp BootloaderAPI_UNUSED2 ; UNUSED ENTRY 2
  	rjmp BootloaderAPI_UNUSED3 ; UNUSED ENTRY 3
  	rjmp BootloaderAPI_UNUSED4 ; UNUSED ENTRY 4
  	rjmp BootloaderAPI_UNUSED5 ; UNUSED ENTRY 5
  
  
  
  ; Bootloader table signatures and information
  .section .apitable_signatures, "ax"
  .global BootloaderAPI_Signatures
  BootloaderAPI_Signatures:
  
  	.long BOOT_START_ADDR ; Start address of the bootloader
  	.word 0xDF10 ; Signature for the DFU class bootloader, V1
  	.word 0xDCFB ; Signature for a LUFA class bootloader