103 lines
3.3 KiB
ArmAsm
103 lines
3.3 KiB
ArmAsm
|
/*
|
||
|
|
LUFA Library
|
||
|
|
Copyright (C) Dean Camera, 2019.
|
||
|
|
|
||
|
|
dean [at] fourwalledcubicle [dot] com
|
||
|
|
www.lufa-lib.org
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
Copyright 2019 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if AUX_BOOT_SECTION_SIZE > 0
|
||
|
|
#warning Using a AUX bootloader section in addition to the defined bootloader space (see documentation).
|
||
|
|
|
||
|
|
; Trampoline to jump over the AUX bootloader section to the start of the bootloader,
|
||
|
|
; on devices where an AUX bootloader section is used.
|
||
|
|
.section .boot_aux_trampoline, "ax"
|
||
|
|
.global Boot_AUX_Trampoline
|
||
|
|
Boot_AUX_Trampoline:
|
||
|
|
jmp BOOT_START_ADDR
|
||
|
|
#endif
|
||
|
|
|
||
|
|
; 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 0xDF30 ; Signature for the MS class bootloader, V1
|
||
|
|
.word 0xDCFB ; Signature for a LUFA class bootloader
|