void* main(void) { char filename[MAX_PATH]; int i; int btn; int rc; int num_partitions; struct partinfo* pinfo; #if !(CONFIG_STORAGE & STORAGE_SD) char buf[256]; unsigned short* identify_info; #endif int usb = USB_EXTRACTED; chksum_crc32gentab (); system_init(); kernel_init(); #ifdef HAVE_BOOTLOADER_USB_MODE /* loader must service interrupts */ enable_interrupt(IRQ_FIQ_STATUS); #endif lcd_init(); font_init(); show_logo(); adc_init(); #ifdef HAVE_BOOTLOADER_USB_MODE button_init_device(); #else button_init(); #endif #if defined(SANSA_E200) || defined(PHILIPS_SA9200) i2c_init(); _backlight_on(); #endif if (button_hold()) { verbose = true; lcd_clear_display(); printf("Hold switch on"); printf("Shutting down..."); sleep(HZ); power_off(); } btn = button_read_device(); /* Enable bootloader messages if any button is pressed */ #ifdef HAVE_BOOTLOADER_USB_MODE lcd_clear_display(); if (btn) verbose = true; #else if (btn) { lcd_clear_display(); verbose = true; } #endif lcd_setfont(FONT_SYSFIXED); printf("Rockbox boot loader"); printf("Version: " RBVERSION); printf(MODEL_NAME); i=storage_init(); #if !(CONFIG_STORAGE & STORAGE_SD) if (i==0) { identify_info=ata_get_identify(); /* Show model */ for (i=0; i < 20; i++) { ((unsigned short*)buf)[i]=htobe16(identify_info[i+27]); } buf[40]=0; for (i=39; i && buf[i]==' '; i--) { buf[i]=0; } printf(buf); } else { error(EATA, i, true); } #endif disk_init(IF_MV(0)); num_partitions = disk_mount_all(); if (num_partitions<=0) { error(EDISK,num_partitions, true); } /* Just list the first 2 partitions since we don't have any devices yet that have more than that */ for(i=0; i<NUM_PARTITIONS; i++) { pinfo = disk_partinfo(i); printf("Partition %d: 0x%02x %ld MB", i, pinfo->type, pinfo->size / 2048); } /* Now that storage is initialized, check for USB connection */ if ((btn & BOOTLOADER_BOOT_OF) == 0) { usb_pin_init(); usb = handle_usb(HZ*2); if (usb == USB_INSERTED) btn |= BOOTLOADER_BOOT_OF; } /* Try loading Rockbox, if that fails, fall back to the OF */ if((btn & BOOTLOADER_BOOT_OF) == 0) { printf("Loading Rockbox..."); snprintf(filename,sizeof(filename), BOOTDIR "/%s", BOOTFILE); rc = load_mi4(loadbuffer, filename, MAX_LOADSIZE); if (rc <= EFILE_EMPTY) { bool old_verbose = verbose; verbose = true; printf("Can't load " BOOTFILE ": "); printf(loader_strerror(rc)); verbose = old_verbose; btn |= BOOTLOADER_BOOT_OF; sleep(5*HZ); } else goto main_exit; } if(btn & BOOTLOADER_BOOT_OF) { /* Load original mi4 firmware in to a memory buffer called loadbuffer. The rest of the loading is done in crt0.S. 1) First try reading from the hidden partition (on Sansa only). 2) Next try a decrypted mi4 file in /System/OF.mi4 3) Finally, try a raw firmware binary in /System/OF.bin. It should be a mi4 firmware decrypted and header stripped using mi4code. */ printf("Loading original firmware..."); #if (CONFIG_STORAGE & STORAGE_SD) /* First try a (hidden) firmware partition */ printf("Trying firmware partition"); pinfo = disk_partinfo(1); if(pinfo->type == PARTITION_TYPE_OS2_HIDDEN_C_DRIVE) { rc = load_mi4_part(loadbuffer, pinfo, MAX_LOADSIZE, usb == USB_INSERTED); if (rc <= EFILE_EMPTY) { printf("Can't load from partition"); printf(loader_strerror(rc)); } else { goto main_exit; } } else { printf("No hidden partition found."); } #endif #if defined(PHILIPS_HDD1630) || defined(PHILIPS_HDD6330) || defined(PHILIPS_SA9200) printf("Trying /System/OF.ebn"); rc=load_mi4(loadbuffer, "/System/OF.ebn", MAX_LOADSIZE); if (rc <= EFILE_EMPTY) { printf("Can't load /System/OF.ebn"); printf(loader_strerror(rc)); } else { goto main_exit; } #endif printf("Trying /System/OF.mi4"); rc=load_mi4(loadbuffer, "/System/OF.mi4", MAX_LOADSIZE); if (rc <= EFILE_EMPTY) { printf("Can't load /System/OF.mi4"); printf(loader_strerror(rc)); } else { #if defined(SAMSUNG_YH925) lcd_reset(); #endif goto main_exit; } printf("Trying /System/OF.bin"); rc=load_raw_firmware(loadbuffer, "/System/OF.bin", MAX_LOADSIZE); if (rc <= EFILE_EMPTY) { printf("Can't load /System/OF.bin"); printf(loader_strerror(rc)); } else { #if defined(SAMSUNG_YH925) lcd_reset(); #endif goto main_exit; } error(0, 0, true); } main_exit: #ifdef HAVE_BOOTLOADER_USB_MODE storage_close(); system_prepare_fw_start(); #endif return (void*)loadbuffer; }
void* main(void) { char buf[256]; int i; int btn; int rc; bool haveramos; bool button_was_held; struct partinfo* pinfo; unsigned short* identify_info; /* Check the button hold status as soon as possible - to give the user maximum chance to turn it off in order to reset the settings in rockbox. */ button_was_held = button_hold(); system_init(); kernel_init(); #ifndef HAVE_BACKLIGHT_INVERSION backlight_init(); /* Turns on the backlight */ #endif lcd_init(); font_init(); #ifdef HAVE_LCD_COLOR lcd_set_foreground(LCD_WHITE); lcd_set_background(LCD_BLACK); lcd_clear_display(); #endif #if 0 /* ADC and button drivers are not yet implemented */ adc_init(); button_init(); #endif btn=key_pressed(); /* Enable bootloader messages */ if (btn==BUTTON_RIGHT) verbose = true; lcd_setfont(FONT_SYSFIXED); printf("Rockbox boot loader"); printf("Version: " RBVERSION); printf("IPOD version: 0x%08x", IPOD_HW_REVISION); i=ata_init(); if (i==0) { identify_info=ata_get_identify(); /* Show model */ for (i=0; i < 20; i++) { ((unsigned short*)buf)[i]=htobe16(identify_info[i+27]); } buf[40]=0; for (i=39; i && buf[i]==' '; i--) { buf[i]=0; } printf(buf); } else { printf("ATA: %d", i); } disk_init(); rc = disk_mount_all(); if (rc<=0) { printf("No partition found"); fatal_error(); } pinfo = disk_partinfo(1); printf("Partition 1: 0x%02x %ld sectors", pinfo->type, pinfo->size); if (button_was_held || (btn==BUTTON_MENU)) { /* If either the hold switch was on, or the Menu button was held, then try the Apple firmware */ printf("Loading original firmware..."); /* First try an apple_os.ipod file on the FAT32 partition (either in .rockbox or the root) */ rc=load_firmware(loadbuffer, "apple_os.ipod", MAX_LOADSIZE); if (rc > 0) { printf("apple_os.ipod loaded."); return (void*)DRAM_START; } else if (rc == EFILE_NOT_FOUND) { /* If apple_os.ipod doesn't exist, then check if there is an Apple firmware image in RAM */ haveramos = (memcmp((void*)(DRAM_START+0x20),"portalplayer",12)==0); if (haveramos) { /* We have a copy of the retailos in RAM, lets just run it. */ return (void*)DRAM_START; } } else { printf("Error!"); printf("Can't load apple_os.ipod:"); printf(loader_strerror(rc)); } /* Everything failed - just loop forever */ printf("No RetailOS detected"); } else if (btn==BUTTON_PLAY) { printf("Loading Linux..."); rc=load_raw_firmware(loadbuffer, "/linux.bin", MAX_LOADSIZE); if (rc <= EFILE_EMPTY) { printf("Error!"); printf("Can't load linux.bin:"); printf(loader_strerror(rc)); } else { return (void*)DRAM_START; } } else { printf("Loading Rockbox..."); rc=load_firmware(loadbuffer, BOOTFILE, MAX_LOADSIZE); if (rc > 0) { printf("Rockbox loaded."); return (void*)DRAM_START; } else if (rc == EFILE_NOT_FOUND) { /* if rockbox.ipod doesn't exist, then check if there is a Rockbox image in RAM */ haveramos = (memcmp((void*)(DRAM_START+0x20),"Rockbox\1",8)==0); if (haveramos) { /* We have a copy of Rockbox in RAM, lets just run it. */ return (void*)DRAM_START; } } printf("Error!"); printf("Can't load " BOOTFILE ": "); printf(loader_strerror(rc)); } /* If we get to here, then we haven't been able to load any firmware */ fatal_error(); /* We never get here, but keep gcc happy */ return (void*)0; }