bootloader/iriver_h1x0.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Linus Nielsen Feltzing
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include "inttypes.h"
  26 #include "string.h"
  27 #include "cpu.h"
  28 #include "system.h"
  29 #include "lcd.h"
  30 #include "lcd-remote.h"
  31 #include "scroll_engine.h"
  32 #include "kernel.h"
  33 #include "thread.h"
  34 #include "storage.h"
  35 #include "usb.h"
  36 #include "disk.h"
  37 #include "font.h"
  38 #include "adc.h"
  39 #include "backlight.h"
  40 #include "backlight-target.h"
  41 #include "button.h"
  42 #include "panic.h"
  43 #include "power.h"
  44 #include "powermgmt.h"
  45 #include "file.h"
  46 #include "eeprom_settings.h"
  47 #include "rbunicode.h"
  48 #include "common.h"
  49
  50 #include <stdarg.h>
  51
  52 /* Maximum allowed firmware image size. 10MB is more than enough */
  53 #define MAX_LOADSIZE (10*1024*1024)
  54
  55 #define DRAM_START 0x31000000
  56
  57 #ifdef HAVE_EEPROM_SETTINGS
  58 static bool recovery_mode = false;
  59 #endif
  60
  61 char version[] = APPSVERSION;
  62
  63 /* Reset the cookie for the crt0 crash check */
  64 inline void __reset_cookie(void)
  65 {
  66     asm(" move.l #0,%d0");
  67     asm(" move.l %d0,0x10017ffc");
  68 }
  69
  70 void start_iriver_fw(void)
  71 {
  72     asm(" move.w #0x2700,%sr");
  73     __reset_cookie();
  74     asm(" movec.l %d0,%vbr");
  75     asm(" move.l 0,%sp");
  76     asm(" lea.l 8,%a0");
  77     asm(" jmp (%a0)");
  78 }
  79
  80 void start_firmware(void)
  81 {
  82     asm(" move.w #0x2700,%sr");
  83     __reset_cookie();
  84     asm(" move.l %0,%%d0" :: "i"(DRAM_START));
  85     asm(" movec.l %d0,%vbr");
  86     asm(" move.l %0,%%sp" :: "m"(*(int *)DRAM_START));
  87     asm(" move.l %0,%%a0" :: "m"(*(int *)(DRAM_START+4)));
  88     asm(" jmp (%a0)");
  89 }
  90
  91 #ifdef IRIVER_H100_SERIES
  92 void start_flashed_romimage(void)
  93 {
  94     uint8_t *src = (uint8_t *)FLASH_ROMIMAGE_ENTRY;
  95     int *reset_vector;
  96
  97     if (!detect_flashed_romimage())
  98         return ;
  99
 100     reset_vector = (int *)(&src[sizeof(struct flash_header)+4]);
 101
 102     asm(" move.w #0x2700,%sr");
 103     __reset_cookie();
 104
 105     asm(" move.l %0,%%d0" :: "i"(DRAM_START));
 106     asm(" movec.l %d0,%vbr");
 107     asm(" move.l %0,%%sp" :: "m"(reset_vector[0]));
 108     asm(" move.l %0,%%a0" :: "m"(reset_vector[1]));
 109     asm(" jmp (%a0)");
 110
 111     /* Failure */
 112     power_off();
 113 }
 114
 115 void start_flashed_ramimage(void)
 116 {
 117     struct flash_header hdr;
 118     unsigned char *buf = (unsigned char *)DRAM_START;
 119     uint8_t *src = (uint8_t *)FLASH_RAMIMAGE_ENTRY;
 120
 121     if (!detect_flashed_ramimage())
 122          return;
 123
 124     /* Load firmware from flash */
 125     cpu_boost(true);
 126     memcpy(&hdr, src, sizeof(struct flash_header));
 127     src += sizeof(struct flash_header);
 128     memcpy(buf, src, hdr.length);
 129     cpu_boost(false);
 130
 131     start_firmware();
 132
 133     /* Failure */
 134     power_off();
 135 }
 136 #endif /* IRIVER_H100_SERIES */
 137
 138 void shutdown(void)
 139 {
 140     printf("Shutting down...");
 141 #ifdef HAVE_EEPROM_SETTINGS
 142     /* Reset the rockbox crash check. */
 143     firmware_settings.bl_version = 0;
 144     eeprom_settings_store();
 145 #endif
 146
 147     /* We need to gracefully spin down the disk to prevent clicks. */
 148     if (ide_powered())
 149     {
 150         /* Make sure ATA has been initialized. */
 151         storage_init();
 152
 153         /* And put the disk into sleep immediately. */
 154         storage_sleepnow();
 155     }
 156
 157     sleep(HZ*2);
 158
 159     /* Backlight OFF */
 160     _backlight_off();
 161 #ifdef HAVE_REMOTE_LCD
 162     _remote_backlight_off();
 163 #endif
 164
 165     __reset_cookie();
 166     power_off();
 167 }
 168
 169 /* Print the battery voltage (and a warning message). */
 170 void check_battery(void)
 171 {
 172     int battery_voltage, batt_int, batt_frac;
 173
 174     battery_voltage = battery_adc_voltage();
 175     batt_int = battery_voltage / 1000;
 176     batt_frac = (battery_voltage % 1000) / 10;
 177
 178     printf("Batt: %d.%02dV", batt_int, batt_frac);
 179
 180     if (battery_voltage <= 310)
 181     {
 182         printf("WARNING! BATTERY LOW!!");
 183         sleep(HZ*2);
 184     }
 185 }
 186
 187 #ifdef HAVE_EEPROM_SETTINGS
 188 void initialize_eeprom(void)
 189 {
 190     if (detect_original_firmware())
 191         return ;
 192
 193     if (!eeprom_settings_init())
 194     {
 195         recovery_mode = true;
 196         return ;
 197     }
 198
 199     /* If bootloader version has not been reset, disk might
 200      * not be intact. */
 201     if (firmware_settings.bl_version || !firmware_settings.disk_clean)
 202     {
 203         firmware_settings.disk_clean = false;
 204         recovery_mode = true;
 205     }
 206
 207     firmware_settings.bl_version = EEPROM_SETTINGS_BL_MINVER;
 208     eeprom_settings_store();
 209 }
 210
 211 void try_flashboot(void)
 212 {
 213     if (!firmware_settings.initialized)
 214         return ;
 215
 216    switch (firmware_settings.bootmethod)
 217     {
 218         case BOOT_DISK:
 219             return;
 220
 221         case BOOT_ROM:
 222             start_flashed_romimage();
 223             recovery_mode = true;
 224             break;
 225
 226         case BOOT_RAM:
 227             start_flashed_ramimage();
 228             recovery_mode = true;
 229             break;
 230
 231         default:
 232             recovery_mode = true;
 233             return;
 234     }
 235 }
 236
 237 static const char *options[] = {
 238     "Boot from disk",
 239     "Boot RAM image",
 240     "Boot ROM image",
 241     "Shutdown"
 242 };
 243
 244 #define FAILSAFE_OPTIONS 4
 245 #define TIMEOUT (15*HZ)
 246 void failsafe_menu(void)
 247 {
 248     long start_tick = current_tick;
 249     int option = 3;
 250     int button;
 251     int defopt = -1;
 252     char buf[32];
 253     int i;
 254     extern int line;
 255
 256     reset_screen();
 257     printf("Bootloader %s", version);
 258     check_battery();
 259     printf("=========================");
 260     line += FAILSAFE_OPTIONS;
 261     printf("");
 262     printf("  [NAVI] to confirm.");
 263     printf("  [REC] to set as default.");
 264     printf("");
 265
 266     if (firmware_settings.initialized)
 267     {
 268         defopt = firmware_settings.bootmethod;
 269         if (defopt < 0 || defopt >= FAILSAFE_OPTIONS)
 270             defopt = option;
 271     }
 272
 273     while (current_tick - start_tick < TIMEOUT)
 274     {
 275         /* Draw the menu. */
 276         line = 3;
 277         for (i = 0; i < FAILSAFE_OPTIONS; i++)
 278         {
 279             char *def = "[DEF]";
 280             char *arrow = "->";
 281
 282             if (i != defopt)
 283                 def = "";
 284             if (i != option)
 285                 arrow = "  ";
 286
 287             printf("%s %s %s", arrow, options[i], def);
 288         }
 289
 290         snprintf(buf, sizeof(buf), "Time left: %ds",
 291                  (TIMEOUT - (current_tick - start_tick)) / HZ);
 292         lcd_puts(0, 10, buf);
 293         lcd_update();
 294         button = button_get_w_tmo(HZ);
 295
 296         if (button == BUTTON_NONE || button & SYS_EVENT)
 297             continue ;
 298
 299         start_tick = current_tick;
 300
 301         /* Ignore the ON/PLAY -button because it can cause trouble
 302            with the RTC alarm mod. */
 303         switch (button & ~(BUTTON_ON))
 304         {
 305             case BUTTON_UP:
 306             case BUTTON_RC_REW:
 307                 if (option > 0)
 308                     option--;
 309                 break ;
 310
 311             case BUTTON_DOWN:
 312             case BUTTON_RC_FF:
 313                 if (option < FAILSAFE_OPTIONS-1)
 314                     option++;
 315                 break ;
 316
 317             case BUTTON_SELECT:
 318             case BUTTON_RC_ON:
 319                 goto execute;
 320
 321             case BUTTON_REC:
 322             case BUTTON_RC_REC:
 323                 if (firmware_settings.initialized)
 324                 {
 325                     firmware_settings.bootmethod = option;
 326                     eeprom_settings_store();
 327                     defopt = option;
 328                 }
 329                 break ;
 330         }
 331     }
 332
 333     execute:
 334
 335     lcd_puts(0, 10, "Executing command...");
 336     lcd_update();
 337     sleep(HZ);
 338     reset_screen();
 339
 340     switch (option)
 341     {
 342         case BOOT_DISK:
 343             return ;
 344
 345         case BOOT_RAM:
 346             start_flashed_ramimage();
 347             printf("Image not found");
 348             break;
 349
 350         case BOOT_ROM:
 351             start_flashed_romimage();
 352             printf("Image not found");
 353             break;
 354     }
 355
 356     shutdown();
 357 }
 358 #endif
 359
 360 /* get rid of a nasty humming sound during boot
 361  -> RESET signal */
 362 inline static void __uda1380_reset_hi(void)
 363 {
 364 #ifdef HAVE_UDA1380
 365     or_l(1<<29, &GPIO_OUT);
 366     or_l(1<<29, &GPIO_ENABLE);
 367     or_l(1<<29, &GPIO_FUNCTION);
 368 #endif
 369 }
 370
 371 inline static void __uda1380_reset_lo(void)
 372 {
 373 #ifdef HAVE_UDA1380
 374     and_l(~(1<<29), &GPIO_OUT);
 375 #endif
 376 }
 377
 378 void main(void)
 379 {
 380     int i;
 381     int rc;
 382     bool rc_on_button = false;
 383     bool on_button = false;
 384     bool rec_button = false;
 385     bool hold_status = false;
 386     int data;
 387     extern int line;        /* From common.c */
 388     extern int remote_line; /* From common.c */
 389
 390     /* We want to read the buttons as early as possible, before the user
 391        releases the ON button */
 392
 393     /* Set GPIO33, GPIO37, GPIO38  and GPIO52 as general purpose inputs
 394        (The ON and Hold buttons on the main unit and the remote) */
 395     or_l(0x00100062, &GPIO1_FUNCTION);
 396     and_l(~0x00100062, &GPIO1_ENABLE);
 397
 398     data = GPIO1_READ;
 399     if ((data & 0x20) == 0)
 400         on_button = true;
 401
 402     if ((data & 0x40) == 0)
 403         rc_on_button = true;
 404
 405     /* Set the default state of the hard drive power to OFF */
 406     ide_power_enable(false);
 407
 408     power_init();
 409
 410     /* Turn off if neither ON button is pressed */
 411     if (!(on_button || rc_on_button))
 412     {
 413         __reset_cookie();
 414         power_off();
 415     }
 416
 417     __uda1380_reset_hi();
 418
 419     /* Start with the main backlight OFF. */
 420     _backlight_init();
 421     _backlight_off();
 422
 423     /* Remote backlight ON */
 424 #ifdef HAVE_REMOTE_LCD
 425     _remote_backlight_on();
 426 #endif
 427
 428     system_init();
 429     kernel_init();
 430
 431     __uda1380_reset_lo();
 432
 433 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 434     /* Set up waitstates for the peripherals */
 435     set_cpu_frequency(0); /* PLL off */
 436 #ifdef CPU_COLDFIRE
 437     coldfire_set_pllcr_audio_bits(DEFAULT_PLLCR_AUDIO_BITS);
 438 #endif
 439 #endif
 440     enable_irq();
 441
 442 #ifdef HAVE_EEPROM_SETTINGS
 443     initialize_eeprom();
 444 #endif
 445
 446     usb_init();
 447     /* A small delay after usb_init is necessary to read the I/O port correctly
 448        (if ports are read _immediately_ after the init). */
 449     /* sleep(1); */
 450
 451     adc_init();
 452     button_init();
 453
 454     /* Only check remote hold status if remote power button was actually used. */
 455     if (rc_on_button)
 456     {
 457         lcd_remote_init();
 458
 459         /* Allow the button driver to check the buttons */
 460         sleep(HZ/50);
 461
 462         if (remote_button_hold())
 463             hold_status = true;
 464     }
 465
 466     /* Check main hold switch status too. */
 467     if (on_button && button_hold())
 468     {
 469         hold_status = true;
 470     }
 471
 472     /* Power on the hard drive early, to speed up the loading. */
 473     if (!hold_status
 474 # ifdef HAVE_EEPROM_SETTINGS
 475         && !recovery_mode
 476 # endif
 477         )
 478     {
 479         ide_power_enable(true);
 480     }
 481
 482 # ifdef HAVE_EEPROM_SETTINGS
 483     if (!hold_status && (usb_detect() != USB_INSERTED) && !recovery_mode)
 484         try_flashboot();
 485 # endif
 486
 487     backlight_init();
 488
 489
 490     lcd_init();
 491
 492     if (!rc_on_button)
 493         lcd_remote_init();
 494
 495     /* Bootloader uses simplified backlight thread, so we need to enable
 496        remote display here. */
 497     if (remote_detect())
 498         lcd_remote_on();
 499
 500     font_init();
 501
 502     lcd_setfont(FONT_SYSFIXED);
 503
 504     printf("Rockbox boot loader");
 505     printf("Version %s", version);
 506
 507     /* No need to wait here more because lcd_init and others already do that. */
 508     // sleep(HZ/50); /* Allow the button driver to check the buttons */
 509     rec_button = ((button_status() & BUTTON_REC) == BUTTON_REC)
 510         || ((button_status() & BUTTON_RC_REC) == BUTTON_RC_REC);
 511
 512     check_battery();
 513
 514     /* Don't start if the Hold button is active on the device you
 515        are starting with */
 516     if ((usb_detect() != USB_INSERTED) && (hold_status
 517 #ifdef HAVE_EEPROM_SETTINGS
 518                           || recovery_mode
 519 #endif
 520                           ))
 521     {
 522         if (detect_original_firmware())
 523         {
 524             printf("Hold switch on");
 525             shutdown();
 526         }
 527
 528 #ifdef HAVE_EEPROM_SETTINGS
 529         failsafe_menu();
 530 #endif
 531     }
 532
 533     /* Holding REC while starting runs the original firmware */
 534     if (detect_original_firmware() && rec_button)
 535     {
 536         printf("Starting original firmware...");
 537         start_iriver_fw();
 538     }
 539
 540     /* A hack to enter USB mode without using the USB thread */
 541     if(usb_detect() == USB_INSERTED)
 542     {
 543         const char msg[] = "Bootloader USB mode";
 544         int w, h;
 545         font_getstringsize(msg, &w, &h, FONT_SYSFIXED);
 546         reset_screen();
 547         lcd_putsxy((LCD_WIDTH-w)/2, (LCD_HEIGHT-h)/2, msg);
 548         lcd_update();
 549
 550 #ifdef HAVE_REMOTE_LCD
 551         lcd_remote_puts(0, 3, msg);
 552         lcd_remote_update();
 553 #endif
 554
 555 #ifdef HAVE_EEPROM_SETTINGS
 556         if (firmware_settings.initialized)
 557         {
 558             firmware_settings.disk_clean = false;
 559             eeprom_settings_store();
 560         }
 561 #endif
 562         ide_power_enable(true);
 563         storage_enable(false);
 564         sleep(HZ/20);
 565         usb_enable(true);
 566         cpu_idle_mode(true);
 567         while (usb_detect() == USB_INSERTED)
 568         {
 569             /* Print the battery status. */
 570             line = 0;
 571             remote_line = 0;
 572             check_battery();
 573
 574             storage_spin(); /* Prevent the drive from spinning down */
 575             sleep(HZ);
 576
 577             /* Backlight OFF */
 578             _backlight_off();
 579         }
 580
 581         cpu_idle_mode(false);
 582         usb_enable(false);
 583
 584         reset_screen();
 585         lcd_update();
 586     }
 587
 588     rc = storage_init();
 589     if(rc)
 590     {
 591         reset_screen();
 592         printf("ATA error: %d", rc);
 593         printf("Insert USB cable and press");
 594         printf("a button");
 595         while(!(button_get(true) & BUTTON_REL));
 596     }
 597
 598
 599     disk_init();
 600
 601     rc = disk_mount_all();
 602     if (rc<=0)
 603     {
 604         reset_screen();
 605         printf("No partition found");
 606         while(button_get(true) != SYS_USB_CONNECTED) {};
 607     }
 608
 609     printf("Loading firmware");
 610     i = load_firmware((unsigned char *)DRAM_START, BOOTFILE, MAX_LOADSIZE);
 611     if(i < 0)
 612         printf("Error: %s", strerror(i));
 613
 614     if (i == EOK)
 615         start_firmware();
 616
 617     if (!detect_original_firmware())
 618     {
 619         printf("No firmware found on disk");
 620         sleep(HZ*2);
 621         shutdown();
 622     }
 623     else {
 624         sleep(HZ*2);
 625         start_iriver_fw();
 626     }
 627 }
 628
 629 /* These functions are present in the firmware library, but we reimplement
 630    them here because the originals do a lot more than we want */
 631 void screen_dump(void)
 632 {
 633 }
 634
 635 int usb_screen(void)
 636 {
 637    return 0;
 638 }
 639
 640 unsigned short *bidi_l2v(const unsigned char *str, int orientation)
 641 {
 642     static unsigned short utf16_buf[SCROLL_LINE_SIZE];
 643     unsigned short *target;
 644     (void)orientation;
 645
 646     target = utf16_buf;
 647
 648     while (*str)
 649         str = utf8decode(str, target++);
 650     *target = 0;
 651     return utf16_buf;
 652 }