protocol/lufa/LUFA-git/Bootloaders/Printer/BootloaderAPITable.S

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2014.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2014  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaims all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 ; Trampolines to actual API implementations if the target address is outside the
  32 ; range of a rjmp instruction (can happen with large bootloader sections)
  33 .section .apitable_trampolines, "ax"
  34 .global BootloaderAPI_Trampolines
  35 BootloaderAPI_Trampolines:
  36
  37         BootloaderAPI_ErasePage_Trampoline:
  38                 jmp BootloaderAPI_ErasePage
  39         BootloaderAPI_WritePage_Trampoline:
  40                 jmp BootloaderAPI_WritePage
  41         BootloaderAPI_FillWord_Trampoline:
  42                 jmp BootloaderAPI_FillWord
  43         BootloaderAPI_ReadSignature_Trampoline:
  44                 jmp BootloaderAPI_ReadSignature
  45         BootloaderAPI_ReadFuse_Trampoline:
  46                 jmp BootloaderAPI_ReadFuse
  47         BootloaderAPI_ReadLock_Trampoline:
  48                 jmp BootloaderAPI_ReadLock
  49         BootloaderAPI_WriteLock_Trampoline:
  50                 jmp BootloaderAPI_WriteLock
  51         BootloaderAPI_UNUSED1:
  52                 ret
  53         BootloaderAPI_UNUSED2:
  54                 ret
  55         BootloaderAPI_UNUSED3:
  56                 ret
  57         BootloaderAPI_UNUSED4:
  58                 ret
  59         BootloaderAPI_UNUSED5:
  60                 ret
  61
  62
  63
  64 ; API function jump table
  65 .section .apitable_jumptable, "ax"
  66 .global BootloaderAPI_JumpTable
  67 BootloaderAPI_JumpTable:
  68
  69         rjmp BootloaderAPI_ErasePage_Trampoline
  70         rjmp BootloaderAPI_WritePage_Trampoline
  71         rjmp BootloaderAPI_FillWord_Trampoline
  72         rjmp BootloaderAPI_ReadSignature_Trampoline
  73         rjmp BootloaderAPI_ReadFuse_Trampoline
  74         rjmp BootloaderAPI_ReadLock_Trampoline
  75         rjmp BootloaderAPI_WriteLock_Trampoline
  76         rjmp BootloaderAPI_UNUSED1 ; UNUSED ENTRY 1
  77         rjmp BootloaderAPI_UNUSED2 ; UNUSED ENTRY 2
  78         rjmp BootloaderAPI_UNUSED3 ; UNUSED ENTRY 3
  79         rjmp BootloaderAPI_UNUSED4 ; UNUSED ENTRY 4
  80         rjmp BootloaderAPI_UNUSED5 ; UNUSED ENTRY 5
  81
  82
  83
  84 ; Bootloader table signatures and information
  85 .section .apitable_signatures, "ax"
  86 .global BootloaderAPI_Signatures
  87 BootloaderAPI_Signatures:
  88
  89         .long BOOT_START_ADDR ; Start address of the bootloader
  90         .word 0xDF20 ; Signature for the Printer class bootloader
  91         .word 0xDCFB ; Signature for a LUFA class bootloader