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authorDean Camera <dean@fourwalledcubicle.com>2012-04-14 10:09:45 +0000
committerDean Camera <dean@fourwalledcubicle.com>2012-04-14 10:09:45 +0000
commite8570c4a37e41117e3fd1e989e0b41f1e9608f3c (patch)
tree8aab63b2dd5fa938f7507c2938ca4be5f046b43b /Bootloaders/CDC/BootloaderAPITable.S
parenta19dc3d20cd5c80adb80b1bd6f5126075911f411 (diff)
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Fixed CDC and DFU bootloaders failing to compile when the bootloader section size is 8KB or more (thanks to Georg Glock).
Diffstat (limited to 'Bootloaders/CDC/BootloaderAPITable.S')
-rw-r--r--Bootloaders/CDC/BootloaderAPITable.S48
1 files changed, 34 insertions, 14 deletions
diff --git a/Bootloaders/CDC/BootloaderAPITable.S b/Bootloaders/CDC/BootloaderAPITable.S
index 50b7a5d38..fc1e2e99f 100644
--- a/Bootloaders/CDC/BootloaderAPITable.S
+++ b/Bootloaders/CDC/BootloaderAPITable.S
@@ -31,25 +31,45 @@
; Bootloader API Jump Table
.section .apitable, "ax"
-; API function jump table
+; Trampolines to actual API implementations if the target address is outside the
+; range of a rjmp instruction (can happen with large bootloader sections)
.org 0
+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_UNUSED:
+ ret
+
+; API function jump table
+.org (96 - 32)
.global BootloaderAPI_JumpTable
BootloaderAPI_JumpTable:
- rjmp BootloaderAPI_ErasePage
- rjmp BootloaderAPI_WritePage
- rjmp BootloaderAPI_FillWord
- rjmp BootloaderAPI_ReadSignature
- rjmp BootloaderAPI_ReadFuse
- rjmp BootloaderAPI_ReadLock
- rjmp BootloaderAPI_WriteLock
- nop ; UNUSED ENTRY
- nop ; UNUSED ENTRY
- nop ; UNUSED ENTRY
- nop ; UNUSED ENTRY
- ret
+ 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_UNUSED ; UNUSED ENTRY
+ rjmp BootloaderAPU_UNUSED ; UNUSED ENTRY
+ rjmp BootloaderAPU_UNUSED ; UNUSED ENTRY
+ rjmp BootloaderAPU_UNUSED ; UNUSED ENTRY
+ rjmp BootloaderAPU_UNUSED ; UNUSED ENTRY
; Bootloader table signatures and information
-.org (32 - 8)
+.org (96 - 8)
BootloaderAPI_Signatures:
.global BootloaderAPI_Signatures
.long BOOT_START_ADDR ; Start address of the bootloader