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qmk_firmware/Bootloaders/DFU/BootloaderAPITable.S

92 lines
2.9 KiB

;
; LUFA Library
; Copyright (C) Dean Camera, 2012.
;
; dean [at] fourwalledcubicle [dot] com
; www.lufa-lib.org
;
; Copyright 2012 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 disclaim 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
BootloaderAPU_UNUSED1:
ret
BootloaderAPU_UNUSED2:
ret
BootloaderAPU_UNUSED3:
ret
BootloaderAPU_UNUSED4:
ret
BootloaderAPU_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 BootloaderAPU_UNUSED1 ; UNUSED ENTRY 1
rjmp BootloaderAPU_UNUSED2 ; UNUSED ENTRY 2
rjmp BootloaderAPU_UNUSED3 ; UNUSED ENTRY 3
rjmp BootloaderAPU_UNUSED4 ; UNUSED ENTRY 4
rjmp BootloaderAPU_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 0xDFB1 ; Signature for the DFU class bootloader, V1
.word 0xDCFB ; Signature for a LUFA class bootloader