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Refactored bootloader jumping. Added USBaspLoader support.

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This commit is contained in:
tmk
2011-09-22 16:56:36 +09:00
parent e67c988824
commit e65575d4a5
10 changed files with 107 additions and 17 deletions
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22
bootloader.c Normal file
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@@ -0,0 +1,22 @@
/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "bootloader.h"
void bootloader_jump(void) __attribute__ ((weak));
void bootloader_jump(void) {}

25
bootloader.h Normal file
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@@ -0,0 +1,25 @@
/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef BOOTLOADER_H
#define BOOTLOADER_H
/* give code for your bootloader to come up if needed */
void bootloader_jump(void);
#endif

9
command.c
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@@ -25,10 +25,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "timer.h"
#include "layer.h"
#include "matrix.h"
#include "bootloader.h"
#include "command.h"
#ifdef HOST_PJRC
# include "jump_bootloader.h"
# include "usb_keyboard.h"
# ifdef EXTRAKEY_ENABLE
# include "usb_extra.h"
@@ -78,13 +78,12 @@ static uint8_t command_common(void)
help();
break;
case KB_B:
#ifdef HOST_PJRC
host_clear_keyboard_report();
host_send_keyboard_report();
print("jump to bootloader...\n");
print("jump to bootloader... ");
_delay_ms(1000);
jump_bootloader(); // not return
#endif
bootloader_jump(); // not return
print("not supported.\n");
break;
case KB_D:
debug_enable = !debug_enable;

1
common.mk
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@@ -4,6 +4,7 @@ SRC += host.c \
layer.c \
timer.c \
print.c \
bootloader.c \
util.c

2
pjrc.mk
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@@ -4,7 +4,7 @@ SRC += pjrc.c \
usb_keyboard.c \
usb_debug.c \
usb.c \
jump_bootloader.c
bootloader_teensy.c
# Search Path

3
pjrc/jump_bootloader.c → pjrc/bootloader_teensy.c
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@@ -2,8 +2,9 @@
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "bootloader.h"
void jump_bootloader(void) {
void bootloader_jump(void) {
cli();
// disable watchdog, if enabled
// disable all peripherals

7
pjrc/jump_bootloader.h
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@@ -1,7 +0,0 @@
/* See http://www.pjrc.com/teensy/jump_to_bootloader.html */
#ifndef JUMP_BOOTLOADER_H
#define JUMP_BOOTLOADER_H 1
void jump_bootloader(void);
#endif

4
pjrc/main.c
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@@ -31,7 +31,7 @@
#include "print.h"
#include "debug.h"
#include "util.h"
#include "jump_bootloader.h"
#include "bootloader.h"
#ifdef PS2_MOUSE_ENABLE
# include "ps2_mouse.h"
#endif
@@ -86,7 +86,7 @@ int main(void)
if (matrix_key_count() >= 4) {
print("jump to bootloader...\n");
_delay_ms(1000);
jump_bootloader(); // not return
bootloader_jump(); // not return
}

4
vusb.mk
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@@ -3,7 +3,9 @@ OPT_DEFS += -DHOST_VUSB
SRC += vusb.c \
usbdrv.c \
usbdrvasm.S \
oddebug.c
oddebug.c \
bootloader_usbasp.c \
ifdef NO_UART
SRC += sendchar_null.c

47
vusb/bootloader_usbasp.c Normal file
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@@ -0,0 +1,47 @@
/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include "bootloader.h"
void bootloader_jump(void) {
cli();
// This makes custom USBasploader come up.
MCUSR = 0;
// ATmega168PA
// initialize ports
PORTB = 0; PORTC= 0; PORTD = 0;
DDRB = 0; DDRC= 0; DDRD = 0;
// disable interrupts
EIMSK = 0; EECR = 0; SPCR = 0;
ACSR = 0; SPMCSR = 0; WDTCSR = 0; PCICR = 0;
TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0;
ADCSRA = 0; TWCR = 0; UCSR0B = 0;
// Boot Loader Section Start Address:
// BOOTSZ Size Address
// (lock bit) (word) (word) (byte)
// '11' 128 0x1F80 0x3F00
// '10' 256 0x1F00 0x3E00
// '01' 512 0x1E00 0x3C00
// '00' 1024 0x1C00 0x3800
asm volatile("jmp 0x3800");
}