2a3856f613
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5825 a1c6a512-1295-4272-9138-f99709370657
225 lines
4.6 KiB
C
225 lines
4.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 by Linus Nielsen Feltzing
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include "cpu.h"
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#include "system.h"
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#include "lcd.h"
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#include "kernel.h"
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#include "thread.h"
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#include "ata.h"
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#include "disk.h"
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#include "font.h"
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#include "adc.h"
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#include "backlight.h"
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#include "button.h"
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#include "panic.h"
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#include "power.h"
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#include "file.h"
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int line = 0;
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int usb_screen(void)
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{
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return 0;
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}
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void start_iriver_fw(void)
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{
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asm(" move.w #0x2700,%sr");
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/* Reset the cookie for the crt0 crash check */
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asm(" move.l #0,%d0");
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asm(" move.l %d0,0x10017ffc");
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asm(" movec.l %d0,%vbr");
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asm(" move.l 0,%sp");
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asm(" lea.l 8,%a0");
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asm(" jmp (%a0)");
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}
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int load_firmware(void)
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{
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int fd;
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int rc;
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int len;
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unsigned long chksum;
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unsigned long sum;
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int i;
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unsigned char *buf = (unsigned char *)0x30000000;
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char str[80];
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fd = open("/rockbox.iriver", O_RDONLY);
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if(fd < 0)
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return -1;
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len = lseek(fd, 0, SEEK_END) - 8;
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snprintf(str, 80, "Length: %x", len);
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lcd_puts(0, line++, str);
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lcd_update();
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lseek(fd, FIRMWARE_OFFSET_FILE_CRC, SEEK_SET);
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rc = read(fd, &chksum, 4);
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if(rc < 4)
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return -2;
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snprintf(str, 80, "Checksum: %x", chksum);
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lcd_puts(0, line++, str);
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lcd_update();
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lseek(fd, FIRMWARE_OFFSET_FILE_DATA, SEEK_SET);
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rc = read(fd, buf, len);
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if(rc < len)
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return -4;
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close(fd);
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sum = 0;
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for(i = 0;i < len;i++) {
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sum += buf[i];
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}
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snprintf(str, 80, "Sum: %x", sum);
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lcd_puts(0, line++, str);
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lcd_update();
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if(sum != chksum)
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return -5;
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return 0;
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}
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void start_firmware(void)
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{
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asm(" move.w #0x2700,%sr");
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/* Reset the cookie for the crt0 crash check */
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asm(" move.l #0,%d0");
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asm(" move.l %d0,0x10017ffc");
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asm(" move.l #0x30000000,%d0");
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asm(" movec.l %d0,%vbr");
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asm(" move.l 0x30000000,%sp");
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asm(" move.l 0x30000004,%a0");
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asm(" jmp (%a0)");
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}
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int main(void)
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{
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int i;
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int rc;
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int button;
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char buf[256];
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power_init();
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system_init();
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kernel_init();
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backlight_init();
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set_irq_level(0);
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lcd_init();
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font_init();
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adc_init();
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button_init();
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lcd_setfont(FONT_SYSFIXED);
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sleep(HZ/10); /* Allow the button driver to check the buttons */
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if(button_status() & BUTTON_REC) {
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lcd_puts(0, 8, "Starting original firmware...");
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lcd_update();
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sleep(HZ);
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start_iriver_fw();
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}
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rc = ata_init();
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if(rc)
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{
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#ifdef HAVE_LCD_BITMAP
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char str[32];
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lcd_clear_display();
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snprintf(str, 31, "ATA error: %d", rc);
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lcd_puts(0, 1, str);
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lcd_puts(0, 3, "Press ON to debug");
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lcd_update();
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while(!(button_get(true) & BUTTON_REL));
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#endif
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panicf("ata: %d", rc);
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}
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disk_init();
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rc = disk_mount_all();
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if (rc<=0)
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{
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lcd_clear_display();
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lcd_puts(0, 0, "No partition");
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lcd_puts(0, 1, "found.");
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while(button_get(true) != SYS_USB_CONNECTED) {};
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}
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lcd_puts(0, line++, "Loading firmware");
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lcd_update();
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i = load_firmware();
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snprintf(buf, 256, "Result: %d", i);
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lcd_puts(0, line++, buf);
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lcd_update();
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if(i == 0)
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start_firmware();
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while(1) {
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button = button_get_w_tmo(HZ/2);
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if(button)
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{
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if(button == (BUTTON_OFF | BUTTON_REPEAT))
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power_off();
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}
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}
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}
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/* These functions are present in the firmware library, but we reimplement
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them here because the originals do a lot more than we want */
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void reset_poweroff_timer(void)
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{
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}
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void screen_dump(void)
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{
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}
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int dbg_ports(void)
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{
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return 0;
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}
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void mpeg_stop(void)
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{
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}
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void usb_acknowledge(void)
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{
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}
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void usb_wait_for_disconnect(void)
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{
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}
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