103 lines
3.4 KiB
ArmAsm
103 lines
3.4 KiB
ArmAsm
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2017.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#if AUX_BOOT_SECTION_SIZE > 0
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#warning Using a AUX bootloader section in addition to the defined bootloader space (see documentation).
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; Trampoline to jump over the AUX bootloader section to the start of the bootloader,
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; on devices where an AUX bootloader section is used.
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.section .boot_aux_trampoline, "ax"
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.global Boot_AUX_Trampoline
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Boot_AUX_Trampoline:
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jmp BOOT_START_ADDR
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#endif
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; Trampolines to actual API implementations if the target address is outside the
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; range of a rjmp instruction (can happen with large bootloader sections)
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.section .apitable_trampolines, "ax"
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.global BootloaderAPI_Trampolines
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BootloaderAPI_Trampolines:
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BootloaderAPI_ErasePage_Trampoline:
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jmp BootloaderAPI_ErasePage
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BootloaderAPI_WritePage_Trampoline:
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jmp BootloaderAPI_WritePage
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BootloaderAPI_FillWord_Trampoline:
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jmp BootloaderAPI_FillWord
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BootloaderAPI_ReadSignature_Trampoline:
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jmp BootloaderAPI_ReadSignature
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BootloaderAPI_ReadFuse_Trampoline:
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jmp BootloaderAPI_ReadFuse
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BootloaderAPI_ReadLock_Trampoline:
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jmp BootloaderAPI_ReadLock
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BootloaderAPI_WriteLock_Trampoline:
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jmp BootloaderAPI_WriteLock
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BootloaderAPI_UNUSED1:
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ret
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BootloaderAPI_UNUSED2:
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ret
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BootloaderAPI_UNUSED3:
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ret
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BootloaderAPI_UNUSED4:
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ret
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BootloaderAPI_UNUSED5:
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ret
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; API function jump table
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.section .apitable_jumptable, "ax"
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.global BootloaderAPI_JumpTable
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BootloaderAPI_JumpTable:
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rjmp BootloaderAPI_ErasePage_Trampoline
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rjmp BootloaderAPI_WritePage_Trampoline
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rjmp BootloaderAPI_FillWord_Trampoline
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rjmp BootloaderAPI_ReadSignature_Trampoline
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rjmp BootloaderAPI_ReadFuse_Trampoline
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rjmp BootloaderAPI_ReadLock_Trampoline
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rjmp BootloaderAPI_WriteLock_Trampoline
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rjmp BootloaderAPI_UNUSED1 ; UNUSED ENTRY 1
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rjmp BootloaderAPI_UNUSED2 ; UNUSED ENTRY 2
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rjmp BootloaderAPI_UNUSED3 ; UNUSED ENTRY 3
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rjmp BootloaderAPI_UNUSED4 ; UNUSED ENTRY 4
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rjmp BootloaderAPI_UNUSED5 ; UNUSED ENTRY 5
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; Bootloader table signatures and information
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.section .apitable_signatures, "ax"
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.global BootloaderAPI_Signatures
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BootloaderAPI_Signatures:
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.long BOOT_START_ADDR ; Start address of the bootloader
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.word 0xDF30 ; Signature for the MS class bootloader, V1
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.word 0xDCFB ; Signature for a LUFA class bootloader
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