mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-13 18:17:39 -04:00
aaa9a2ccee
First this removes most of the conditionals for the CPP as they are always true for the targets that use the bootloader source. Second this moves some global variable references around to reduce some redundancy in the h1x0 bootloader source. All of this is done to make it easier to compare the two bootloaders as they are very heavily related to each other. Change-Id: I7eb4a3106fb9fce6059797310d9e053a3d3ecf63
637 lines
15 KiB
C
637 lines
15 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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 "inttypes.h"
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#include "string.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 "lcd-remote.h"
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#include "scroll_engine.h"
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#include "../kernel-internal.h"
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#include "storage.h"
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#include "file_internal.h"
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#include "usb.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 "backlight-target.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 "powermgmt.h"
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#include "file.h"
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#include "eeprom_settings.h"
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#include "rbunicode.h"
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#include "common.h"
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#include "rb-loader.h"
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#include "loader_strerror.h"
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#include "version.h"
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#include <stdarg.h>
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/* Maximum allowed firmware image size. 10MB is more than enough */
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#define MAX_LOADSIZE (10*1024*1024)
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#define DRAM_START 0x31000000
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/* From common.c */
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extern int line;
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extern int remote_line;
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#ifdef HAVE_EEPROM_SETTINGS
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static bool recovery_mode = false;
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#endif
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/* Reset the cookie for the crt0 crash check */
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inline void __reset_cookie(void)
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{
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asm(" move.l #0,%d0");
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asm(" move.l %d0,0x10017ffc");
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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_cookie();
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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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void start_firmware(void)
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{
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asm(" move.w #0x2700,%sr");
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__reset_cookie();
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asm(" move.l %0,%%d0" :: "i"(DRAM_START));
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asm(" movec.l %d0,%vbr");
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asm(" move.l %0,%%sp" :: "m"(*(int *)DRAM_START));
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asm(" move.l %0,%%a0" :: "m"(*(int *)(DRAM_START+4)));
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asm(" jmp (%a0)");
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}
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void start_flashed_romimage(void)
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{
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uint8_t *src = (uint8_t *)FLASH_ROMIMAGE_ENTRY;
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int *reset_vector;
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if (!detect_flashed_romimage())
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return ;
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reset_vector = (int *)(&src[sizeof(struct flash_header)+4]);
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asm(" move.w #0x2700,%sr");
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__reset_cookie();
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asm(" move.l %0,%%d0" :: "i"(DRAM_START));
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asm(" movec.l %d0,%vbr");
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asm(" move.l %0,%%sp" :: "m"(reset_vector[0]));
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asm(" move.l %0,%%a0" :: "m"(reset_vector[1]));
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asm(" jmp (%a0)");
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/* Failure */
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power_off();
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}
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void start_flashed_ramimage(void)
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{
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struct flash_header hdr;
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unsigned char *buf = (unsigned char *)DRAM_START;
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uint8_t *src = (uint8_t *)FLASH_RAMIMAGE_ENTRY;
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if (!detect_flashed_ramimage())
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return;
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/* Load firmware from flash */
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cpu_boost(true);
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memcpy(&hdr, src, sizeof(struct flash_header));
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src += sizeof(struct flash_header);
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memcpy(buf, src, hdr.length);
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cpu_boost(false);
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start_firmware();
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/* Failure */
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power_off();
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}
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void shutdown(void)
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{
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printf("Shutting down...");
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#ifdef HAVE_EEPROM_SETTINGS
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/* Reset the rockbox crash check. */
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firmware_settings.bl_version = 0;
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eeprom_settings_store();
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#endif
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/* We need to gracefully spin down the disk to prevent clicks. */
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if (ide_powered())
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{
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/* Make sure ATA has been initialized. */
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storage_init();
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/* And put the disk into sleep immediately. */
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storage_sleepnow();
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}
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sleep(HZ*2);
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/* Backlight OFF */
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backlight_hw_off();
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remote_backlight_hw_off();
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__reset_cookie();
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power_off();
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}
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/* Print the battery voltage (and a warning message). */
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void check_battery(void)
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{
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int battery_voltage, batt_int, batt_frac;
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battery_voltage = _battery_voltage();
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batt_int = battery_voltage / 1000;
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batt_frac = (battery_voltage % 1000) / 10;
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printf("Batt: %d.%02dV", batt_int, batt_frac);
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if (battery_voltage <= 310)
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{
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printf("WARNING! BATTERY LOW!!");
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sleep(HZ*2);
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}
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}
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#ifdef HAVE_EEPROM_SETTINGS
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void initialize_eeprom(void)
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{
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if (detect_original_firmware())
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return ;
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if (!eeprom_settings_init())
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{
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recovery_mode = true;
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return ;
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}
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/* If bootloader version has not been reset, disk might
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* not be intact. */
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if (firmware_settings.bl_version || !firmware_settings.disk_clean)
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{
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firmware_settings.disk_clean = false;
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recovery_mode = true;
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}
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firmware_settings.bl_version = EEPROM_SETTINGS_BL_MINVER;
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eeprom_settings_store();
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}
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void try_flashboot(void)
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{
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if (!firmware_settings.initialized)
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return ;
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switch (firmware_settings.bootmethod)
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{
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case BOOT_DISK:
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return;
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case BOOT_ROM:
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start_flashed_romimage();
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recovery_mode = true;
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break;
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case BOOT_RAM:
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start_flashed_ramimage();
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recovery_mode = true;
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break;
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default:
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recovery_mode = true;
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return;
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}
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}
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static const char *options[] = {
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"Boot from disk",
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"Boot RAM image",
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"Boot ROM image",
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"Shutdown"
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};
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#define FAILSAFE_OPTIONS 4
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#define TIMEOUT (15*HZ)
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void failsafe_menu(void)
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{
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long start_tick = current_tick;
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int option = 3;
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int button;
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int defopt = -1;
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char buf[32];
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int i;
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reset_screen();
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printf("Bootloader %s", rbversion);
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check_battery();
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printf("=========================");
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line += FAILSAFE_OPTIONS;
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printf("");
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printf(" [NAVI] to confirm.");
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printf(" [REC] to set as default.");
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printf("");
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if (firmware_settings.initialized)
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{
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defopt = firmware_settings.bootmethod;
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if (defopt < 0 || defopt >= FAILSAFE_OPTIONS)
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defopt = option;
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}
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while (current_tick - start_tick < TIMEOUT)
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{
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/* Draw the menu. */
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line = 3;
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for (i = 0; i < FAILSAFE_OPTIONS; i++)
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{
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char *def = "[DEF]";
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char *arrow = "->";
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if (i != defopt)
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def = "";
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if (i != option)
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arrow = " ";
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printf("%s %s %s", arrow, options[i], def);
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}
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snprintf(buf, sizeof(buf), "Time left: %lds",
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(TIMEOUT - (current_tick - start_tick)) / HZ);
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lcd_puts(0, 10, buf);
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lcd_update();
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button = button_get_w_tmo(HZ);
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if (button == BUTTON_NONE || button & SYS_EVENT)
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continue ;
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start_tick = current_tick;
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/* Ignore the ON/PLAY -button because it can cause trouble
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with the RTC alarm mod. */
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switch (button & ~(BUTTON_ON))
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{
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case BUTTON_UP:
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case BUTTON_RC_REW:
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if (option > 0)
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option--;
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break ;
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case BUTTON_DOWN:
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case BUTTON_RC_FF:
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if (option < FAILSAFE_OPTIONS-1)
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option++;
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break ;
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case BUTTON_SELECT:
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case BUTTON_RC_ON:
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goto execute;
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case BUTTON_REC:
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case BUTTON_RC_REC:
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if (firmware_settings.initialized)
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{
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firmware_settings.bootmethod = option;
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eeprom_settings_store();
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defopt = option;
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}
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break ;
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}
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}
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execute:
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lcd_puts(0, 10, "Executing command...");
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lcd_update();
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sleep(HZ);
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reset_screen();
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switch (option)
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{
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case BOOT_DISK:
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return ;
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case BOOT_RAM:
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start_flashed_ramimage();
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printf("Image not found");
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break;
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case BOOT_ROM:
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start_flashed_romimage();
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printf("Image not found");
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break;
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}
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shutdown();
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}
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#endif
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/* get rid of a nasty humming sound during boot
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-> RESET signal */
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inline static void __uda1380_reset_hi(void)
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{
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or_l(1<<29, &GPIO_OUT);
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or_l(1<<29, &GPIO_ENABLE);
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or_l(1<<29, &GPIO_FUNCTION);
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}
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inline static void __uda1380_reset_lo(void)
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{
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and_l(~(1<<29), &GPIO_OUT);
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}
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void main(void)
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{
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int i;
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int rc;
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bool rc_on_button = false;
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bool on_button = false;
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bool rec_button = false;
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bool hold_status = false;
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int data;
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/* We want to read the buttons as early as possible, before the user
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releases the ON button */
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/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs
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(The ON and Hold buttons on the main unit and the remote) */
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or_l(0x00100062, &GPIO1_FUNCTION);
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and_l(~0x00100062, &GPIO1_ENABLE);
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data = GPIO1_READ;
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if ((data & 0x20) == 0)
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on_button = true;
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if ((data & 0x40) == 0)
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rc_on_button = true;
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/* Set the default state of the hard drive power to OFF */
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ide_power_enable(false);
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power_init();
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/* Turn off if neither ON button is pressed */
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if (!(on_button || rc_on_button))
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{
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__reset_cookie();
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power_off();
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}
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__uda1380_reset_hi();
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/* Start with the main backlight OFF. */
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backlight_hw_init();
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backlight_hw_off();
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/* Remote backlight ON */
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remote_backlight_hw_on();
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system_init();
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kernel_init();
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__uda1380_reset_lo();
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/* Set up waitstates for the peripherals */
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set_cpu_frequency(0); /* PLL off */
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coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
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enable_irq();
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#ifdef HAVE_EEPROM_SETTINGS
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initialize_eeprom();
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#endif
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usb_init();
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/* A small delay after usb_init is necessary to read the I/O port correctly
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(if ports are read _immediately_ after the init). */
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/* sleep(1); */
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adc_init();
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button_init();
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/* Only check remote hold status if remote power button was actually used. */
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if (rc_on_button)
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{
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lcd_remote_init();
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/* Allow the button driver to check the buttons */
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sleep(HZ/50);
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if (remote_button_hold())
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hold_status = true;
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}
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/* Check main hold switch status too. */
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if (on_button && button_hold())
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{
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hold_status = true;
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}
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/* Power on the hard drive early, to speed up the loading. */
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if (!hold_status
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# ifdef HAVE_EEPROM_SETTINGS
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&& !recovery_mode
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# endif
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)
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{
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ide_power_enable(true);
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}
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# ifdef HAVE_EEPROM_SETTINGS
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if (!hold_status && (usb_detect() != USB_INSERTED) && !recovery_mode)
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try_flashboot();
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# endif
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lcd_init();
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if (!rc_on_button)
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lcd_remote_init();
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backlight_init(); /* BUGFIX backlight_init MUST BE AFTER lcd_init */
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/* Bootloader uses simplified backlight thread, so we need to enable
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remote display here. */
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if (remote_detect())
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lcd_remote_on();
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font_init();
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lcd_setfont(FONT_SYSFIXED);
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printf("Rockbox boot loader");
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printf("Version %s", rbversion);
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/* No need to wait here more because lcd_init and others already do that. */
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// sleep(HZ/50); /* Allow the button driver to check the buttons */
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rec_button = ((button_status() & BUTTON_REC) == BUTTON_REC)
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|| ((button_status() & BUTTON_RC_REC) == BUTTON_RC_REC);
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check_battery();
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/* Don't start if the Hold button is active on the device you
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are starting with */
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if ((usb_detect() != USB_INSERTED) && (hold_status
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#ifdef HAVE_EEPROM_SETTINGS
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|| recovery_mode
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#endif
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))
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{
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if (detect_original_firmware())
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{
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printf("Hold switch on");
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shutdown();
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}
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#ifdef HAVE_EEPROM_SETTINGS
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failsafe_menu();
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#endif
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}
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/* Holding REC while starting runs the original firmware */
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if (detect_original_firmware() && rec_button)
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{
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printf("Starting original firmware...");
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start_iriver_fw();
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}
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/* A hack to enter USB mode without using the USB thread */
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if(usb_detect() == USB_INSERTED)
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{
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const char msg[] = "Bootloader USB mode";
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int w, h;
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font_getstringsize(msg, &w, &h, FONT_SYSFIXED);
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reset_screen();
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lcd_putsxy((LCD_WIDTH-w)/2, (LCD_HEIGHT-h)/2, msg);
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lcd_update();
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lcd_remote_puts(0, 3, msg);
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lcd_remote_update();
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#ifdef HAVE_EEPROM_SETTINGS
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if (firmware_settings.initialized)
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{
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firmware_settings.disk_clean = false;
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eeprom_settings_store();
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}
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#endif
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ide_power_enable(true);
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storage_enable(false);
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sleep(HZ/20);
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usb_enable(true);
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cpu_idle_mode(true);
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while (usb_detect() == USB_INSERTED)
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{
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/* Print the battery status. */
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line = 0;
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remote_line = 0;
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check_battery();
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storage_spin(); /* Prevent the drive from spinning down */
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sleep(HZ);
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/* Backlight OFF */
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backlight_hw_off();
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}
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cpu_idle_mode(false);
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usb_enable(false);
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reset_screen();
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lcd_update();
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}
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rc = storage_init();
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if(rc)
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{
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reset_screen();
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printf("ATA error: %d", rc);
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printf("Insert USB cable and press");
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printf("a button");
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while(!(button_get(true) & BUTTON_REL));
|
|
}
|
|
|
|
|
|
filesystem_init();
|
|
|
|
rc = disk_mount_all();
|
|
if (rc<=0)
|
|
{
|
|
reset_screen();
|
|
printf("No partition found");
|
|
while(button_get(true) != SYS_USB_CONNECTED) {};
|
|
}
|
|
|
|
printf("Loading firmware");
|
|
i = load_firmware((unsigned char *)DRAM_START, BOOTFILE, MAX_LOADSIZE);
|
|
if(i <= EFILE_EMPTY)
|
|
printf("Error: %s", loader_strerror(i));
|
|
|
|
if (i > 0)
|
|
start_firmware();
|
|
|
|
if (!detect_original_firmware())
|
|
{
|
|
printf("No firmware found on disk");
|
|
sleep(HZ*2);
|
|
shutdown();
|
|
}
|
|
else {
|
|
sleep(HZ*2);
|
|
start_iriver_fw();
|
|
}
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
}
|
|
|
|
int usb_screen(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
unsigned short *bidi_l2v(const unsigned char *str, int orientation)
|
|
{
|
|
static unsigned short utf16_buf[SCROLL_LINE_SIZE];
|
|
unsigned short *target;
|
|
(void)orientation;
|
|
|
|
target = utf16_buf;
|
|
|
|
while (*str)
|
|
str = utf8decode(str, target++);
|
|
*target = 0;
|
|
return utf16_buf;
|
|
}
|