| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2007 by Linus Nielsen Feltzing |
| * |
| * 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 "config.h" |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include "inttypes.h" |
| #include "string.h" |
| #include "cpu.h" |
| #include "system.h" |
| #include "lcd.h" |
| #include "lcd-remote.h" |
| #include "kernel.h" |
| #include "thread.h" |
| #include "storage.h" |
| #include "usb.h" |
| #include "disk.h" |
| #include "font.h" |
| #include "adc.h" |
| #include "backlight.h" |
| #include "backlight-target.h" |
| #include "button.h" |
| #include "panic.h" |
| #include "power.h" |
| #include "powermgmt.h" |
| #include "file.h" |
| |
| #include "pcf50606.h" |
| #include "common.h" |
| |
| #include <stdarg.h> |
| |
| /* Maximum allowed firmware image size. 10MB is more than enough */ |
| #define MAX_LOADSIZE (10*1024*1024) |
| |
| #define DRAM_START 0x31000000 |
| |
| int usb_screen(void) |
| { |
| return 0; |
| } |
| |
| char version[] = APPSVERSION; |
| |
| /* Reset the cookie for the crt0 crash check */ |
| inline void __reset_cookie(void) |
| { |
| asm(" move.l #0,%d0"); |
| asm(" move.l %d0,0x10017ffc"); |
| } |
| |
| void start_firmware(void) |
| { |
| adc_close(); |
| asm(" move.w #0x2700,%sr"); |
| __reset_cookie(); |
| asm(" move.l %0,%%d0" :: "i"(DRAM_START)); |
| asm(" movec.l %d0,%vbr"); |
| asm(" move.l %0,%%sp" :: "m"(*(int *)DRAM_START)); |
| asm(" move.l %0,%%a0" :: "m"(*(int *)(DRAM_START+4))); |
| asm(" jmp (%a0)"); |
| } |
| |
| void shutdown(void) |
| { |
| printf("Shutting down..."); |
| |
| /* We need to gracefully spin down the disk to prevent clicks. */ |
| if (ide_powered()) |
| { |
| /* Make sure ATA has been initialized. */ |
| storage_init(); |
| |
| /* And put the disk into sleep immediately. */ |
| storage_sleepnow(); |
| } |
| |
| sleep(HZ*2); |
| |
| /* Backlight OFF */ |
| _backlight_off(); |
| #ifdef HAVE_REMOTE_LCD |
| _remote_backlight_off(); |
| #endif |
| |
| __reset_cookie(); |
| power_off(); |
| } |
| |
| /* Print the battery voltage (and a warning message). */ |
| void check_battery(void) |
| { |
| int battery_voltage, batt_int, batt_frac; |
| |
| battery_voltage = battery_adc_voltage(); |
| batt_int = battery_voltage / 1000; |
| batt_frac = (battery_voltage % 1000) / 10; |
| |
| printf("Batt: %d.%02dV", batt_int, batt_frac); |
| |
| if (battery_voltage <= 3500) |
| { |
| printf("WARNING! BATTERY LOW!!"); |
| sleep(HZ*2); |
| } |
| } |
| |
| void main(void) |
| { |
| int i; |
| int rc; |
| bool rc_on_button = false; |
| bool on_button = false; |
| |
| /* We want to read the buttons as early as possible, before the user |
| releases the ON button */ |
| |
| #ifdef IAUDIO_M3 |
| or_l(0x80000000, &GPIO_FUNCTION); /* remote Play button */ |
| and_l(~0x80000000, &GPIO_ENABLE); |
| or_l(0x00000202, &GPIO1_FUNCTION); /* main Hold & Play */ |
| |
| if ((GPIO1_READ & 0x000000002) == 0) |
| on_button = true; |
| |
| if ((GPIO_READ & 0x80000000) == 0) |
| rc_on_button = true; |
| #elif defined(IAUDIO_M5) || defined(IAUDIO_X5) |
| int data; |
| |
| or_l(0x0e000000, &GPIO_FUNCTION); /* main Hold & Power, remote Play */ |
| and_l(~0x0e000000, &GPIO_ENABLE); |
| |
| data = GPIO_READ; |
| |
| if ((data & 0x04000000) == 0) |
| on_button = true; |
| |
| if ((data & 0x02000000) == 0) |
| rc_on_button = true; |
| #endif |
| |
| power_init(); |
| |
| system_init(); |
| kernel_init(); |
| |
| set_cpu_frequency(CPUFREQ_NORMAL); |
| coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS); |
| |
| enable_irq(); |
| lcd_init(); |
| #ifdef HAVE_REMOTE_LCD |
| lcd_remote_init(); |
| #endif |
| backlight_init(); |
| font_init(); |
| adc_init(); |
| button_init(); |
| |
| if ((!on_button || button_hold()) |
| && (!rc_on_button || remote_button_hold()) |
| && !charger_inserted()) |
| { |
| /* No need to check for USB connection here, as USB is handled |
| * in the cowon loader. */ |
| if (on_button || rc_on_button) |
| printf("Hold switch on"); |
| shutdown(); |
| } |
| |
| printf("Rockbox boot loader"); |
| printf("Version %s", version); |
| |
| check_battery(); |
| |
| rc = storage_init(); |
| if(rc) |
| { |
| printf("ATA error: %d", rc); |
| sleep(HZ*5); |
| power_off(); |
| } |
| |
| disk_init(); |
| |
| rc = disk_mount_all(); |
| if (rc<=0) |
| { |
| printf("No partition found"); |
| sleep(HZ*5); |
| power_off(); |
| } |
| |
| printf("Loading firmware"); |
| i = load_firmware((unsigned char *)DRAM_START, BOOTFILE, MAX_LOADSIZE); |
| printf("Result: %s", strerror(i)); |
| |
| if (i < EOK) { |
| printf("Error!"); |
| printf("Can't load " BOOTFILE ": "); |
| printf(strerror(rc)); |
| sleep(HZ*3); |
| power_off(); |
| } else { |
| start_firmware(); |
| } |
| } |
| |
| /* These functions are present in the firmware library, but we reimplement |
| them here because the originals do a lot more than we want */ |
| void screen_dump(void) |
| { |
| } |