/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2007 by Linus Nielsen Feltzing * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "config.h" #include #include #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 "ata.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 /* 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. */ ata_init(); /* And put the disk into sleep immediately. */ ata_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); set_irq_level(0); 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 = ata_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 rockbox.iaudio:"); 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) { }