1 | /*
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2 | LUFA Library
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3 | Copyright (C) Dean Camera, 2021.
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4 |
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5 | dean [at] fourwalledcubicle [dot] com
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6 | www.lufa-lib.org
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7 | */
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8 |
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9 | /*
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10 | Copyright 2021 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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11 |
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12 | Permission to use, copy, modify, distribute, and sell this
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13 | software and its documentation for any purpose is hereby granted
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14 | without fee, provided that the above copyright notice appear in
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15 | all copies and that both that the copyright notice and this
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16 | permission notice and warranty disclaimer appear in supporting
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17 | documentation, and that the name of the author not be used in
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18 | advertising or publicity pertaining to distribution of the
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19 | software without specific, written prior permission.
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20 |
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21 | The author disclaims all warranties with regard to this
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22 | software, including all implied warranties of merchantability
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23 | and fitness. In no event shall the author be liable for any
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24 | special, indirect or consequential damages or any damages
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25 | whatsoever resulting from loss of use, data or profits, whether
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26 | in an action of contract, negligence or other tortious action,
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27 | arising out of or in connection with the use or performance of
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28 | this software.
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29 | */
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30 |
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31 | ; Trampolines to actual API implementations if the target address is outside the
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32 | ; range of a rjmp instruction (can happen with large bootloader sections)
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33 | .section .apitable_trampolines, "ax"
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34 | .global BootloaderAPI_Trampolines
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35 | BootloaderAPI_Trampolines:
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36 |
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37 | BootloaderAPI_ErasePage_Trampoline:
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38 | jmp BootloaderAPI_ErasePage
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39 | BootloaderAPI_WritePage_Trampoline:
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40 | jmp BootloaderAPI_WritePage
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41 | BootloaderAPI_FillWord_Trampoline:
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42 | jmp BootloaderAPI_FillWord
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43 | BootloaderAPI_ReadSignature_Trampoline:
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44 | jmp BootloaderAPI_ReadSignature
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45 | BootloaderAPI_ReadFuse_Trampoline:
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46 | jmp BootloaderAPI_ReadFuse
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47 | BootloaderAPI_ReadLock_Trampoline:
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48 | jmp BootloaderAPI_ReadLock
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49 | BootloaderAPI_WriteLock_Trampoline:
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50 | jmp BootloaderAPI_WriteLock
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51 | BootloaderAPI_UNUSED1:
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52 | ret
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53 | BootloaderAPI_UNUSED2:
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54 | ret
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55 | BootloaderAPI_UNUSED3:
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56 | ret
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57 | BootloaderAPI_UNUSED4:
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58 | ret
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59 | BootloaderAPI_UNUSED5:
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60 | ret
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61 |
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62 |
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63 |
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64 | ; API function jump table
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65 | .section .apitable_jumptable, "ax"
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66 | .global BootloaderAPI_JumpTable
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67 | BootloaderAPI_JumpTable:
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68 |
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69 | rjmp BootloaderAPI_ErasePage_Trampoline
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70 | rjmp BootloaderAPI_WritePage_Trampoline
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71 | rjmp BootloaderAPI_FillWord_Trampoline
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72 | rjmp BootloaderAPI_ReadSignature_Trampoline
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73 | rjmp BootloaderAPI_ReadFuse_Trampoline
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74 | rjmp BootloaderAPI_ReadLock_Trampoline
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75 | rjmp BootloaderAPI_WriteLock_Trampoline
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76 | rjmp BootloaderAPI_UNUSED1 ; UNUSED ENTRY 1
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77 | rjmp BootloaderAPI_UNUSED2 ; UNUSED ENTRY 2
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78 | rjmp BootloaderAPI_UNUSED3 ; UNUSED ENTRY 3
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79 | rjmp BootloaderAPI_UNUSED4 ; UNUSED ENTRY 4
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80 | rjmp BootloaderAPI_UNUSED5 ; UNUSED ENTRY 5
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81 |
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82 |
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83 |
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84 | ; Bootloader table signatures and information
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85 | .section .apitable_signatures, "ax"
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86 | .global BootloaderAPI_Signatures
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87 | BootloaderAPI_Signatures:
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88 |
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89 | .long BOOT_START_ADDR ; Start address of the bootloader
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90 | .word 0xDF10 ; Signature for the DFU class bootloader, V1
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91 | .word 0xDCFB ; Signature for a LUFA class bootloader
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