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Added User Application APIs to the CDC and DFU class bootloaders.

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This commit is contained in:
Dean Camera 2011-10-11 06:20:18 +00:00
parent beb069b9b8
commit 1a4a26271e
19 changed files with 436 additions and 9 deletions
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74
Bootloaders/CDC/BootloaderAPI.c Normal file
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@ -0,0 +1,74 @@
/*
LUFA Library
Copyright (C) Dean Camera, 2011.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2011 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.
*/
/** \file
*
* Bootloader user application API functions.
*/
#include "BootloaderAPI.h"
void BootloaderAPI_ErasePage(uint32_t Address)
{
boot_page_erase_safe(Address);
boot_rww_enable();
}
void BootloaderAPI_WritePage(uint32_t Address)
{
boot_page_write_safe(Address);
boot_rww_enable();
}
void BootloaderAPI_FillWord(uint32_t Address, uint16_t Word)
{
boot_page_fill_safe(Address, Word);
}
uint8_t BootloaderAPI_ReadSignature(uint16_t Address)
{
return boot_signature_byte_get(Address);
}
uint8_t BootloaderAPI_ReadFuse(uint16_t Address)
{
return boot_lock_fuse_bits_get(Address);
}
uint8_t BootloaderAPI_ReadLock(void)
{
return boot_lock_fuse_bits_get(GET_LOCK_BITS);
}
void BootloaderAPI_WriteLock(uint8_t LockBits)
{
boot_lock_bits_set_safe(LockBits);
}

59
Bootloaders/CDC/BootloaderAPI.h Normal file
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@ -0,0 +1,59 @@
/*
LUFA Library
Copyright (C) Dean Camera, 2011.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2011 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.
*/
/** \file
*
* Header file for BootloaderAPI.c.
*/
#ifndef _BOOTLOADER_API_H_
#define _BOOTLOADER_API_H_
/* Includes: */
#include <avr/io.h>
#include <avr/boot.h>
#include <stdbool.h>
#include <LUFA/Common/Common.h>
/* External Variables: */
extern uint8_t* BootloaderAPI_JumpTable;
/* Function Prototypes: */
void BootloaderAPI_ErasePage(uint32_t Address);
void BootloaderAPI_WritePage(uint32_t Address);
void BootloaderAPI_FillWord(uint32_t Address, uint16_t Word);
uint8_t BootloaderAPI_ReadSignature(uint16_t Address);
uint8_t BootloaderAPI_ReadFuse(uint16_t Address);
uint8_t BootloaderAPI_ReadLock(void);
void BootloaderAPI_WriteLock(uint8_t LockBits);
#endif

43
Bootloaders/CDC/BootloaderAPITable.S Normal file
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@ -0,0 +1,43 @@
/*
LUFA Library
Copyright (C) Dean Camera, 2011.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2011 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.
*/
; Bootloader API Jump Table
.section .apitable, "ax"
.org 0
.global BootloaderAPI_JumpTable
BootloaderAPI_JumpTable:
jmp BootloaderAPI_ErasePage
jmp BootloaderAPI_WritePage
jmp BootloaderAPI_FillWord
jmp BootloaderAPI_ReadSignature
jmp BootloaderAPI_ReadFuse
jmp BootloaderAPI_ReadLock
jmp BootloaderAPI_WriteLock

4
Bootloaders/CDC/BootloaderCDC.c
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@ -63,6 +63,10 @@ static bool RunBootloader = true;
*/
int main(void)
{
/* Force a reference to the API jump table to prevent the linker from discarding it */
uint8_t* volatile Dummy = BootloaderAPI_JumpTable;
(void)Dummy;
/* Setup hardware required for the bootloader */
SetupHardware();

1
Bootloaders/CDC/BootloaderCDC.h
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@ -46,6 +46,7 @@
#include <stdbool.h>
#include "Descriptors.h"
#include "BootloaderAPI.h"
#include <LUFA/Drivers/USB/USB.h>
#include <LUFA/Drivers/Board/LEDs.h>

19
Bootloaders/CDC/BootloaderCDC.txt
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@ -86,6 +86,25 @@
*
* Refer to the AVRDude project documentation for additional usage instructions.
*
* \section Sec_API User Application API
*
* Several user application functions for FLASH and other special memory area manipulations are exposed by the bootloader,
* allowing the user application to call into the bootloader at runtime to read and write FLASH data.
*
* By default, the bootloader API jump table is located 32 bytes from the end of the device's FLASH memory, and follows the
* following layout:
*
* \code
* #define BOOTLOADER_API_START(Index) (void*)(((FLASHEND - 32) + (2 * Index)) / 2)
* void (*BootloaderAPI_ErasePage)(uint32_t Address) = BOOTLOADER_API_START(0);
* void (*BootloaderAPI_WritePage)(uint32_t Address) = BOOTLOADER_API_START(1);
* void (*BootloaderAPI_FillWord)(uint32_t Address, uint16_t Word) = BOOTLOADER_API_START(2);
* uint8_t (*BootloaderAPI_ReadSignature)(uint16_t Address) = BOOTLOADER_API_START(3);
* uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address) = BOOTLOADER_API_START(4);
* uint8_t (*BootloaderAPI_ReadLock)(void) = BOOTLOADER_API_START(5);
* void (*BootloaderAPI_WriteLock)(uint8_t LockBits) = BOOTLOADER_API_START(6);
* \endcode
*
* \section Sec_Options Project Options
*
* The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.

6
Bootloaders/CDC/makefile
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@ -97,6 +97,7 @@ F_USB = $(F_CPU)
FLASH_SIZE_KB = 128
BOOT_SECTION_SIZE_KB = 4
BOOT_START = 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
BOOT_API_TABLESTART = 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - 32)" | bc)
# Output format. (can be srec, ihex, binary)
@ -142,6 +143,7 @@ include $(LUFA_PATH)/LUFA/makefile
# List C source files here. (C dependencies are automatically generated.)
SRC = $(TARGET).c \
BootloaderAPI.c \
Descriptors.c \
$(LUFA_SRC_USB) \
@ -157,7 +159,7 @@ CPPSRC =
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =
ASRC = BootloaderAPITable.S
# Optimization level, can be [0, 1, 2, 3, s].
@ -338,7 +340,7 @@ EXTMEMOPTS =
# -Map: create map file
# --cref: add cross reference to map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START)
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START) -Wl,--section-start=.apitable=$(BOOT_API_TABLESTART)
LDFLAGS += -Wl,--relax
LDFLAGS += -Wl,--gc-sections
LDFLAGS += $(EXTMEMOPTS)