| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2008 by Rafaël Carré |
| * |
| * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing |
| * and the ipodlinux bootloader by Daniel Palffy and Bernard Leach |
| * |
| * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| |
| #include <stdio.h> |
| #include <system.h> |
| #include <inttypes.h> |
| #include "config.h" |
| #include "gcc_extensions.h" |
| #include "lcd.h" |
| #ifdef USE_ROCKBOX_USB |
| #include "usb.h" |
| #include "sysfont.h" |
| #endif /* USE_ROCKBOX_USB */ |
| #include "backlight.h" |
| #include "button-target.h" |
| #include "common.h" |
| #include "storage.h" |
| #include "disk.h" |
| #include "panic.h" |
| #include "power.h" |
| |
| int show_logo(void); |
| |
| #ifdef USE_ROCKBOX_USB |
| static void usb_mode(void) |
| { |
| if(usb_detect() != USB_INSERTED) |
| { |
| static const char msg[] = "Plug USB cable"; |
| reset_screen(); |
| lcd_putsxy( (LCD_WIDTH - (SYSFONT_WIDTH * sizeof(msg))) / 2, |
| (LCD_HEIGHT - SYSFONT_HEIGHT) / 2, msg); |
| lcd_update(); |
| |
| /* wait until USB is plugged */ |
| while(usb_detect() != USB_INSERTED) ; |
| } |
| |
| static const char msg[] = "Bootloader USB mode"; |
| reset_screen(); |
| lcd_putsxy( (LCD_WIDTH - (SYSFONT_WIDTH * sizeof(msg))) / 2, |
| (LCD_HEIGHT - SYSFONT_HEIGHT) / 2, msg); |
| lcd_update(); |
| |
| while(usb_detect() == USB_INSERTED) |
| sleep(HZ); |
| |
| reset_screen(); |
| lcd_update(); |
| } |
| #endif /* USE_ROCKBOX_USB */ |
| |
| void main(void) NORETURN_ATTR; |
| void main(void) |
| { |
| unsigned char* loadbuffer; |
| int buffer_size; |
| void(*kernel_entry)(void); |
| int ret; |
| |
| system_init(); |
| kernel_init(); |
| |
| enable_irq(); |
| |
| lcd_init(); |
| show_logo(); |
| |
| backlight_init(); |
| |
| button_init_device(); |
| int btn = button_read_device(); |
| |
| #if !defined(SANSA_FUZE) && !defined(SANSA_CLIP) && !defined(SANSA_CLIPV2) \ |
| && !defined(SANSA_CLIPPLUS) |
| if (button_hold()) |
| { |
| verbose = true; |
| lcd_clear_display(); |
| printf("Hold switch on"); |
| printf("Shutting down..."); |
| sleep(HZ); |
| power_off(); |
| } |
| #endif |
| |
| /* Enable bootloader messages if any button is pressed */ |
| if (btn) |
| { |
| lcd_clear_display(); |
| verbose = true; |
| } |
| |
| ret = storage_init(); |
| if(ret < 0) |
| error(EATA, ret, true); |
| |
| #ifdef USE_ROCKBOX_USB |
| usb_init(); |
| usb_start_monitoring(); |
| |
| /* Enter USB mode if USB is plugged and SELECT button is pressed */ |
| if(btn & BUTTON_SELECT && usb_detect() == USB_INSERTED) |
| usb_mode(); |
| #endif /* USE_ROCKBOX_USB */ |
| |
| while(!disk_init(IF_MV(0))) |
| #ifdef USE_ROCKBOX_USB |
| usb_mode(); |
| #else |
| panicf("disk_init failed!"); |
| #endif |
| |
| while((ret = disk_mount_all()) <= 0) |
| { |
| #ifdef USE_ROCKBOX_USB |
| error(EDISK, ret, false); |
| usb_mode(); |
| #else |
| error(EDISK, ret, true); |
| #endif |
| } |
| |
| printf("Loading firmware"); |
| |
| loadbuffer = (unsigned char*)DRAM_ORIG; /* DRAM */ |
| buffer_size = (int)(loadbuffer + (DRAM_SIZE) - TTB_SIZE); |
| |
| while((ret = load_firmware(loadbuffer, BOOTFILE, buffer_size)) < 0) |
| { |
| #ifdef USE_ROCKBOX_USB |
| error(EBOOTFILE, ret, false); |
| usb_mode(); |
| #else |
| error(EBOOTFILE, ret, true); |
| #endif |
| } |
| |
| kernel_entry = (void*) loadbuffer; |
| cpucache_invalidate(); |
| printf("Executing"); |
| kernel_entry(); |
| printf("ERR: Failed to boot"); |
| |
| /* never returns */ |
| while(1) ; |
| } |