apps/misc.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Daniel Stenberg
  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 <stdlib.h>
  22 #include <ctype.h>
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <errno.h>
  26 #include "string-extra.h"
  27 #include "config.h"
  28 #include "misc.h"
  29 #include "system.h"
  30 #include "lcd.h"
  31 #include "file.h"
  32 #include "filefuncs.h"
  33 #ifndef __PCTOOL__
  34 #include "lang.h"
  35 #include "dir.h"
  36 #include "lcd-remote.h"
  37 #include "system.h"
  38 #include "timefuncs.h"
  39 #include "screens.h"
  40 #include "usb_screen.h"
  41 #include "talk.h"
  42 #include "audio.h"
  43 #include "mp3_playback.h"
  44 #include "settings.h"
  45 #include "storage.h"
  46 #include "ata_idle_notify.h"
  47 #include "kernel.h"
  48 #include "power.h"
  49 #include "powermgmt.h"
  50 #include "backlight.h"
  51 #include "version.h"
  52 #include "font.h"
  53 #include "splash.h"
  54 #include "tagcache.h"
  55 #include "scrobbler.h"
  56 #include "sound.h"
  57 #include "playlist.h"
  58 #include "yesno.h"
  59 #include "viewport.h"
  60
  61 #include "debug.h"
  62
  63 #if CONFIG_TUNER
  64 #include "radio.h"
  65 #endif
  66
  67 #ifdef IPOD_ACCESSORY_PROTOCOL
  68 #include "iap.h"
  69 #endif
  70
  71 #if (CONFIG_STORAGE & STORAGE_MMC)
  72 #include "ata_mmc.h"
  73 #endif
  74 #include "tree.h"
  75 #include "eeprom_settings.h"
  76 #if defined(HAVE_RECORDING) && !defined(__PCTOOL__)
  77 #include "recording.h"
  78 #endif
  79 #if defined(HAVE_LCD_BITMAP) && !defined(__PCTOOL__)
  80 #include "bmp.h"
  81 #include "icons.h"
  82 #endif /* End HAVE_LCD_BITMAP */
  83 #include "bookmark.h"
  84 #include "wps.h"
  85 #include "playback.h"
  86 #if CONFIG_CODEC == SWCODEC
  87 #include "voice_thread.h"
  88 #endif
  89
  90 #ifdef BOOTFILE
  91 #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF) \
  92         || defined(HAVE_HOTSWAP_STORAGE_AS_MAIN)
  93 #include "rolo.h"
  94 #endif
  95 #endif
  96
  97 /* units used with output_dyn_value */
  98 const unsigned char * const byte_units[] =
  99 {
 100     ID2P(LANG_BYTE),
 101     ID2P(LANG_KILOBYTE),
 102     ID2P(LANG_MEGABYTE),
 103     ID2P(LANG_GIGABYTE)
 104 };
 105
 106 const unsigned char * const * const kbyte_units = &byte_units[1];
 107
 108 /* Format a large-range value for output, using the appropriate unit so that
 109  * the displayed value is in the range 1 <= display < 1000 (1024 for "binary"
 110  * units) if possible, and 3 significant digits are shown. If a buffer is
 111  * given, the result is snprintf()'d into that buffer, otherwise the result is
 112  * voiced.*/
 113 char *output_dyn_value(char *buf, int buf_size, int value,
 114                        const unsigned char * const *units, bool bin_scale)
 115 {
 116     int scale = bin_scale ? 1024 : 1000;
 117     int fraction = 0;
 118     int unit_no = 0;
 119     char tbuf[5];
 120
 121     while (value >= scale)
 122     {
 123         fraction = value % scale;
 124         value /= scale;
 125         unit_no++;
 126     }
 127     if (bin_scale)
 128         fraction = fraction * 1000 / 1024;
 129
 130     if (value >= 100 || !unit_no)
 131         tbuf[0] = '\0';
 132     else if (value >= 10)
 133         snprintf(tbuf, sizeof(tbuf), "%01d", fraction / 100);
 134     else
 135         snprintf(tbuf, sizeof(tbuf), "%02d", fraction / 10);
 136
 137     if (buf)
 138     {
 139         if (*tbuf)
 140             snprintf(buf, buf_size, "%d%s%s%s", value, str(LANG_POINT),
 141                      tbuf, P2STR(units[unit_no]));
 142         else
 143             snprintf(buf, buf_size, "%d%s", value, P2STR(units[unit_no]));
 144     }
 145     else
 146     {
 147         talk_fractional(tbuf, value, P2ID(units[unit_no]));
 148     }
 149     return buf;
 150 }
 151
 152 /* Ask the user if they really want to erase the current dynamic playlist
 153  * returns true if the playlist should be replaced */
 154 bool warn_on_pl_erase(void)
 155 {
 156     if (global_settings.warnon_erase_dynplaylist &&
 157         !global_settings.party_mode &&
 158         playlist_modified(NULL))
 159     {
 160         static const char *lines[] =
 161             {ID2P(LANG_WARN_ERASEDYNPLAYLIST_PROMPT)};
 162         static const struct text_message message={lines, 1};
 163
 164         return (gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES);
 165     }
 166     else
 167         return true;
 168 }
 169
 170
 171 /* Performance optimized version of the read_line() (see below) function. */
 172 int fast_readline(int fd, char *buf, int buf_size, void *parameters,
 173                   int (*callback)(int n, const char *buf, void *parameters))
 174 {
 175     char *p, *next;
 176     int rc, pos = 0;
 177     int count = 0;
 178
 179     while ( 1 )
 180     {
 181         next = NULL;
 182
 183         rc = read(fd, &buf[pos], buf_size - pos - 1);
 184         if (rc >= 0)
 185             buf[pos+rc] = '\0';
 186
 187         if ( (p = strchr(buf, '\r')) != NULL)
 188         {
 189             *p = '\0';
 190             next = ++p;
 191         }
 192         else
 193             p = buf;
 194
 195         if ( (p = strchr(p, '\n')) != NULL)
 196         {
 197             *p = '\0';
 198             next = ++p;
 199         }
 200
 201         rc = callback(count, buf, parameters);
 202         if (rc < 0)
 203             return rc;
 204
 205         count++;
 206         if (next)
 207         {
 208             pos = buf_size - ((long)next - (long)buf) - 1;
 209             memmove(buf, next, pos);
 210         }
 211         else
 212             break ;
 213     }
 214
 215     return 0;
 216 }
 217
 218 /* parse a line from a configuration file. the line format is:
 219
 220    name: value
 221
 222    Any whitespace before setting name or value (after ':') is ignored.
 223    A # as first non-whitespace character discards the whole line.
 224    Function sets pointers to null-terminated setting name and value.
 225    Returns false if no valid config entry was found.
 226 */
 227
 228 bool settings_parseline(char* line, char** name, char** value)
 229 {
 230     char* ptr;
 231
 232     line = skip_whitespace(line);
 233
 234     if ( *line == '#' )
 235         return false;
 236
 237     ptr = strchr(line, ':');
 238     if ( !ptr )
 239         return false;
 240
 241     *name = line;
 242     *ptr = 0;
 243     ptr++;
 244     ptr = skip_whitespace(ptr);
 245     *value = ptr;
 246     return true;
 247 }
 248
 249 static void system_flush(void)
 250 {
 251     scrobbler_shutdown();
 252     playlist_shutdown();
 253     tree_flush();
 254     call_storage_idle_notifys(true); /*doesnt work on usb and shutdown from ata thread */
 255 }
 256
 257 static void system_restore(void)
 258 {
 259     tree_restore();
 260     scrobbler_init();
 261 }
 262
 263 static bool clean_shutdown(void (*callback)(void *), void *parameter)
 264 {
 265     long msg_id = -1;
 266     int i;
 267
 268     scrobbler_poweroff();
 269
 270 #if CONFIG_CHARGING && !defined(HAVE_POWEROFF_WHILE_CHARGING)
 271     if(!charger_inserted())
 272 #endif
 273     {
 274         bool batt_safe = battery_level_safe();
 275         int audio_stat = audio_status();
 276
 277         FOR_NB_SCREENS(i)
 278         {
 279             screens[i].clear_display();
 280             screens[i].update();
 281         }
 282
 283         if (batt_safe)
 284         {
 285 #ifdef HAVE_TAGCACHE
 286             if (!tagcache_prepare_shutdown())
 287             {
 288                 cancel_shutdown();
 289                 splash(HZ, ID2P(LANG_TAGCACHE_BUSY));
 290                 return false;
 291             }
 292 #endif
 293             if (battery_level() > 10)
 294                 splash(0, str(LANG_SHUTTINGDOWN));
 295             else
 296             {
 297                 msg_id = LANG_WARNING_BATTERY_LOW;
 298                 splashf(0, "%s %s", str(LANG_WARNING_BATTERY_LOW),
 299                                     str(LANG_SHUTTINGDOWN));
 300             }
 301         }
 302         else
 303         {
 304             msg_id = LANG_WARNING_BATTERY_EMPTY;
 305             splashf(0, "%s %s", str(LANG_WARNING_BATTERY_EMPTY),
 306                                 str(LANG_SHUTTINGDOWN));
 307         }
 308
 309         if (global_settings.fade_on_stop
 310             && (audio_stat & AUDIO_STATUS_PLAY))
 311         {
 312             fade(false, false);
 313         }
 314
 315         if (batt_safe) /* do not save on critical battery */
 316         {
 317 #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC
 318             if (audio_stat & AUDIO_STATUS_RECORD)
 319             {
 320                 rec_command(RECORDING_CMD_STOP);
 321                 /* wait for stop to complete */
 322                 while (audio_status() & AUDIO_STATUS_RECORD)
 323                     sleep(1);
 324             }
 325 #endif
 326             bookmark_autobookmark(false);
 327
 328             /* audio_stop_recording == audio_stop for HWCODEC */
 329             audio_stop();
 330
 331             if (callback != NULL)
 332                 callback(parameter);
 333
 334 #if CONFIG_CODEC != SWCODEC
 335             /* wait for audio_stop or audio_stop_recording to complete */
 336             while (audio_status())
 337                 sleep(1);
 338 #endif
 339
 340 #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC
 341             audio_close_recording();
 342 #endif
 343
 344             if(global_settings.talk_menu)
 345             {
 346                 bool enqueue = false;
 347                 if(msg_id != -1)
 348                 {
 349                     talk_id(msg_id, enqueue);
 350                     enqueue = true;
 351                 }
 352                 talk_id(LANG_SHUTTINGDOWN, enqueue);
 353 #if CONFIG_CODEC == SWCODEC
 354                 voice_wait();
 355 #endif
 356             }
 357
 358             system_flush();
 359 #ifdef HAVE_EEPROM_SETTINGS
 360             if (firmware_settings.initialized)
 361             {
 362                 firmware_settings.disk_clean = true;
 363                 firmware_settings.bl_version = 0;
 364                 eeprom_settings_store();
 365             }
 366 #endif
 367         }
 368 #ifdef HAVE_DIRCACHE
 369         else
 370             dircache_disable();
 371 #endif
 372
 373         shutdown_hw();
 374     }
 375     return false;
 376 }
 377
 378 bool list_stop_handler(void)
 379 {
 380     bool ret = false;
 381
 382 #if CONFIG_TUNER
 383     radio_stop();
 384 #endif
 385
 386     /* Stop the music if it is playing */
 387     if(audio_status())
 388     {
 389         if (!global_settings.party_mode)
 390         {
 391             if (global_settings.fade_on_stop)
 392                 fade(false, false);
 393             bookmark_autobookmark(true);
 394             audio_stop();
 395             ret = true;  /* bookmarking can make a refresh necessary */
 396         }
 397     }
 398 #if CONFIG_CHARGING
 399 #if (CONFIG_KEYPAD == RECORDER_PAD) && !defined(HAVE_SW_POWEROFF)
 400     else
 401     {
 402         if (charger_inserted())
 403             charging_splash();
 404         else
 405             shutdown_screen(); /* won't return if shutdown actually happens */
 406
 407         ret = true;  /* screen is dirty, caller needs to refresh */
 408     }
 409 #endif
 410 #ifndef HAVE_POWEROFF_WHILE_CHARGING
 411     {
 412         static long last_off = 0;
 413
 414         if (TIME_BEFORE(current_tick, last_off + HZ/2))
 415         {
 416             if (charger_inserted())
 417             {
 418                 charging_splash();
 419                 ret = true;  /* screen is dirty, caller needs to refresh */
 420             }
 421         }
 422         last_off = current_tick;
 423     }
 424 #endif
 425 #endif /* CONFIG_CHARGING */
 426     return ret;
 427 }
 428
 429 #if CONFIG_CHARGING
 430 static bool waiting_to_resume_play = false;
 431 static long play_resume_tick;
 432
 433 static void car_adapter_mode_processing(bool inserted)
 434 {
 435     if (global_settings.car_adapter_mode)
 436     {
 437         if(inserted)
 438         {
 439             /*
 440              * Just got plugged in, delay & resume if we were playing
 441              */
 442             if (audio_status() & AUDIO_STATUS_PAUSE)
 443             {
 444                 /* delay resume a bit while the engine is cranking */
 445                 play_resume_tick = current_tick + HZ*5;
 446                 waiting_to_resume_play = true;
 447             }
 448         }
 449         else
 450         {
 451             /*
 452              * Just got unplugged, pause if playing
 453              */
 454             if ((audio_status() & AUDIO_STATUS_PLAY) &&
 455                 !(audio_status() & AUDIO_STATUS_PAUSE))
 456             {
 457                 if (global_settings.fade_on_stop)
 458                     fade(false, false);
 459                 else
 460                     audio_pause();
 461             }
 462             waiting_to_resume_play = false;
 463         }
 464     }
 465 }
 466
 467 static void car_adapter_tick(void)
 468 {
 469     if (waiting_to_resume_play)
 470     {
 471         if (TIME_AFTER(current_tick, play_resume_tick))
 472         {
 473             if (audio_status() & AUDIO_STATUS_PAUSE)
 474             {
 475                 queue_broadcast(SYS_CAR_ADAPTER_RESUME, 0);
 476             }
 477             waiting_to_resume_play = false;
 478         }
 479     }
 480 }
 481
 482 void car_adapter_mode_init(void)
 483 {
 484     tick_add_task(car_adapter_tick);
 485 }
 486 #endif
 487
 488 #ifdef HAVE_HEADPHONE_DETECTION
 489 static void unplug_change(bool inserted)
 490 {
 491     static bool headphone_caused_pause = false;
 492
 493     if (global_settings.unplug_mode)
 494     {
 495         int audio_stat = audio_status();
 496         if (inserted)
 497         {
 498             if ((audio_stat & AUDIO_STATUS_PLAY) &&
 499                     headphone_caused_pause &&
 500                     global_settings.unplug_mode > 1 )
 501                 audio_resume();
 502             backlight_on();
 503             headphone_caused_pause = false;
 504         } else {
 505             if ((audio_stat & AUDIO_STATUS_PLAY) &&
 506                     !(audio_stat & AUDIO_STATUS_PAUSE))
 507             {
 508                 headphone_caused_pause = true;
 509                 audio_pause();
 510
 511                 if (global_settings.unplug_rw)
 512                 {
 513 #if (CONFIG_CODEC == SWCODEC)
 514                     audio_pre_ff_rewind();
 515 #endif
 516                     if (audio_current_track()->elapsed >
 517                             (unsigned long)(global_settings.unplug_rw*1000))
 518                         audio_ff_rewind(audio_current_track()->elapsed -
 519                                 (global_settings.unplug_rw*1000));
 520                     else
 521                         audio_ff_rewind(0);
 522                 }
 523             }
 524         }
 525     }
 526 }
 527 #endif
 528
 529 long default_event_handler_ex(long event, void (*callback)(void *), void *parameter)
 530 {
 531 #if CONFIG_PLATFORM & (PLATFORM_ANDROID|PLATFORM_MAEMO)
 532     static bool resume = false;
 533 #endif
 534
 535     switch(event)
 536     {
 537         case SYS_BATTERY_UPDATE:
 538             if(global_settings.talk_battery_level)
 539             {
 540                 talk_ids(true, VOICE_PAUSE, VOICE_PAUSE,
 541                          LANG_BATTERY_TIME,
 542                          TALK_ID(battery_level(), UNIT_PERCENT),
 543                          VOICE_PAUSE);
 544                 talk_force_enqueue_next();
 545             }
 546             break;
 547         case SYS_USB_CONNECTED:
 548             if (callback != NULL)
 549                 callback(parameter);
 550 #if (CONFIG_STORAGE & STORAGE_MMC)
 551             if (!mmc_touched() ||
 552                 (mmc_remove_request() == SYS_HOTSWAP_EXTRACTED))
 553 #endif
 554             {
 555                 system_flush();
 556 #ifdef BOOTFILE
 557 #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF)
 558                 check_bootfile(false); /* gets initial size */
 559 #endif
 560 #endif
 561                 gui_usb_screen_run(false);
 562 #ifdef BOOTFILE
 563 #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF)
 564                 check_bootfile(true);
 565 #endif
 566 #endif
 567                 system_restore();
 568             }
 569             return SYS_USB_CONNECTED;
 570
 571         case SYS_POWEROFF:
 572             if (!clean_shutdown(callback, parameter))
 573                 return SYS_POWEROFF;
 574             break;
 575 #if CONFIG_CHARGING
 576         case SYS_CHARGER_CONNECTED:
 577             car_adapter_mode_processing(true);
 578             return SYS_CHARGER_CONNECTED;
 579
 580         case SYS_CHARGER_DISCONNECTED:
 581             car_adapter_mode_processing(false);
 582             /*reset rockbox battery runtime*/
 583             global_status.runtime = 0;
 584             return SYS_CHARGER_DISCONNECTED;
 585
 586         case SYS_CAR_ADAPTER_RESUME:
 587             audio_resume();
 588             return SYS_CAR_ADAPTER_RESUME;
 589 #endif
 590 #ifdef HAVE_HOTSWAP_STORAGE_AS_MAIN
 591         case SYS_FS_CHANGED:
 592         {
 593             /* simple sanity: assume rockbox is on the first hotswappable
 594              * driver, abort out if that one isn't inserted */
 595             int i;
 596             for (i = 0; i < NUM_DRIVES; i++)
 597             {
 598                 if (storage_removable(i) && !storage_present(i))
 599                     return SYS_FS_CHANGED;
 600             }
 601             system_flush();
 602             check_bootfile(true); /* state gotten in main.c:init() */
 603             system_restore();
 604         }
 605             return SYS_FS_CHANGED;
 606 #endif
 607 #ifdef HAVE_HEADPHONE_DETECTION
 608         case SYS_PHONE_PLUGGED:
 609             unplug_change(true);
 610             return SYS_PHONE_PLUGGED;
 611
 612         case SYS_PHONE_UNPLUGGED:
 613             unplug_change(false);
 614             return SYS_PHONE_UNPLUGGED;
 615 #endif
 616 #ifdef IPOD_ACCESSORY_PROTOCOL
 617         case SYS_IAP_PERIODIC:
 618             iap_periodic();
 619             return SYS_IAP_PERIODIC;
 620         case SYS_IAP_HANDLEPKT:
 621             iap_handlepkt();
 622             return SYS_IAP_HANDLEPKT;
 623 #endif
 624 #if CONFIG_PLATFORM & (PLATFORM_ANDROID|PLATFORM_MAEMO)
 625         /* stop playback if we receive a call */
 626         case SYS_CALL_INCOMING:
 627             resume = audio_status() == AUDIO_STATUS_PLAY;
 628             list_stop_handler();
 629             return SYS_CALL_INCOMING;
 630         /* resume playback if needed */
 631         case SYS_CALL_HUNG_UP:
 632             if (resume && playlist_resume() != -1)
 633             {
 634                 playlist_start(global_status.resume_index,
 635                                global_status.resume_offset);
 636             }
 637             resume = false;
 638             return SYS_CALL_HUNG_UP;
 639 #endif
 640 #if (CONFIG_PLATFORM & PLATFORM_HOSTED) && defined(PLATFORM_HAS_VOLUME_CHANGE)
 641         case SYS_VOLUME_CHANGED:
 642         {
 643             static bool firstvolume = true;
 644             int volume = hosted_get_volume();
 645             DEBUGF("SYS_VOLUME_CHANGED: %d\n", volume);
 646             if (global_settings.volume != volume) {
 647                 global_settings.volume = volume;
 648                 if (firstvolume) {
 649                     setvol();
 650                     firstvolume = false;
 651                 }
 652             }
 653             return 0;
 654         }
 655 #endif
 656 #ifdef HAVE_MULTIMEDIA_KEYS
 657         /* multimedia keys on keyboards, headsets */
 658         case BUTTON_MULTIMEDIA_PLAYPAUSE:
 659         {
 660             int status = audio_status();
 661             if (status & AUDIO_STATUS_PLAY)
 662             {
 663                 if (status & AUDIO_STATUS_PAUSE)
 664                     audio_resume();
 665                 else
 666                     audio_pause();
 667             }
 668             else
 669                 if (playlist_resume() != -1)
 670                 {
 671                     playlist_start(global_status.resume_index,
 672                                    global_status.resume_offset);
 673                 }
 674             return event;
 675         }
 676         case BUTTON_MULTIMEDIA_NEXT:
 677             audio_next();
 678             return event;
 679         case BUTTON_MULTIMEDIA_PREV:
 680             audio_prev();
 681             return event;
 682         case BUTTON_MULTIMEDIA_STOP:
 683             list_stop_handler();
 684             return event;
 685         case BUTTON_MULTIMEDIA_REW:
 686         case BUTTON_MULTIMEDIA_FFWD:
 687             /* not supported yet, needs to be done in the WPS */
 688             return 0;
 689 #endif
 690     }
 691     return 0;
 692 }
 693
 694 long default_event_handler(long event)
 695 {
 696     return default_event_handler_ex(event, NULL, NULL);
 697 }
 698
 699 int show_logo( void )
 700 {
 701 #ifdef HAVE_LCD_BITMAP
 702     char version[32];
 703     int font_h, font_w;
 704
 705     snprintf(version, sizeof(version), "Ver. %s", rbversion);
 706
 707     lcd_clear_display();
 708 #if defined(SANSA_CLIP) || defined(SANSA_CLIPV2) || defined(SANSA_CLIPPLUS)
 709     /* display the logo in the blue area of the screen */
 710     lcd_setfont(FONT_SYSFIXED);
 711     lcd_getstringsize((unsigned char *)"A", &font_w, &font_h);
 712     lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2),
 713                0, (unsigned char *)version);
 714     lcd_bitmap(rockboxlogo, 0, 16, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
 715 #else
 716     lcd_bitmap(rockboxlogo, 0, 10, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
 717     lcd_setfont(FONT_SYSFIXED);
 718     lcd_getstringsize((unsigned char *)"A", &font_w, &font_h);
 719     lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2),
 720                LCD_HEIGHT-font_h, (unsigned char *)version);
 721 #endif
 722     lcd_setfont(FONT_UI);
 723
 724 #else
 725     char *rockbox = "  ROCKbox!";
 726
 727     lcd_clear_display();
 728     lcd_double_height(true);
 729     lcd_puts(0, 0, rockbox);
 730     lcd_puts_scroll(0, 1, rbversion);
 731 #endif
 732     lcd_update();
 733
 734 #ifdef HAVE_REMOTE_LCD
 735     lcd_remote_clear_display();
 736     lcd_remote_bitmap(remote_rockboxlogo, 0, 10, BMPWIDTH_remote_rockboxlogo,
 737                       BMPHEIGHT_remote_rockboxlogo);
 738     lcd_remote_setfont(FONT_SYSFIXED);
 739     lcd_remote_getstringsize((unsigned char *)"A", &font_w, &font_h);
 740     lcd_remote_putsxy((LCD_REMOTE_WIDTH/2) - ((strlen(version)*font_w)/2),
 741                        LCD_REMOTE_HEIGHT-font_h, (unsigned char *)version);
 742     lcd_remote_setfont(FONT_UI);
 743     lcd_remote_update();
 744 #endif
 745
 746     return 0;
 747 }
 748
 749 #ifdef BOOTFILE
 750 #if !defined(USB_NONE) && !defined(USB_HANDLED_BY_OF) || defined(HAVE_HOTSWAP_STORAGE_AS_MAIN)
 751 /*
 752     memorize/compare details about the BOOTFILE
 753     we don't use dircache because it may not be up to date after
 754     USB disconnect (scanning in the background)
 755 */
 756 void check_bootfile(bool do_rolo)
 757 {
 758     static unsigned short wrtdate = 0;
 759     static unsigned short wrttime = 0;
 760     DIR* dir = NULL;
 761     struct dirent* entry = NULL;
 762
 763     /* 1. open BOOTDIR and find the BOOTFILE dir entry */
 764     dir = opendir(BOOTDIR);
 765
 766     if(!dir) return; /* do we want an error splash? */
 767
 768     /* loop all files in BOOTDIR */
 769     while(0 != (entry = readdir(dir)))
 770     {
 771         if(!strcasecmp(entry->d_name, BOOTFILE))
 772         {
 773             struct dirinfo info = dir_get_info(dir, entry);
 774             /* found the bootfile */
 775             if(wrtdate && do_rolo)
 776             {
 777                 if((info.wrtdate != wrtdate) ||
 778                    (info.wrttime != wrttime))
 779                 {
 780                     static const char *lines[] = { ID2P(LANG_BOOT_CHANGED),
 781                                                    ID2P(LANG_REBOOT_NOW) };
 782                     static const struct text_message message={ lines, 2 };
 783                     button_clear_queue(); /* Empty the keyboard buffer */
 784                     if(gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES)
 785                         rolo_load(BOOTDIR "/" BOOTFILE);
 786                 }
 787             }
 788             wrtdate = info.wrtdate;
 789             wrttime = info.wrttime;
 790         }
 791     }
 792     closedir(dir);
 793 }
 794 #endif
 795 #endif
 796
 797 /* check range, set volume and save settings */
 798 void setvol(void)
 799 {
 800     const int min_vol = sound_min(SOUND_VOLUME);
 801     const int max_vol = sound_max(SOUND_VOLUME);
 802     if (global_settings.volume < min_vol)
 803         global_settings.volume = min_vol;
 804     if (global_settings.volume > max_vol)
 805         global_settings.volume = max_vol;
 806     sound_set_volume(global_settings.volume);
 807     global_status.last_volume_change = current_tick;
 808     settings_save();
 809 }
 810
 811 char* strrsplt(char* str, int c)
 812 {
 813     char* s = strrchr(str, c);
 814
 815     if (s != NULL)
 816     {
 817         *s++ = '\0';
 818     }
 819     else
 820     {
 821         s = str;
 822     }
 823
 824     return s;
 825 }
 826
 827 /*
 828  * removes the extension of filename (if it doesn't start with a .)
 829  * puts the result in buffer
 830  */
 831 char *strip_extension(char* buffer, int buffer_size, const char *filename)
 832 {
 833     char *dot = strrchr(filename, '.');
 834     int len;
 835
 836     if (buffer_size <= 0)
 837     {
 838         return NULL;
 839     }
 840
 841     buffer_size--;  /* Make room for end nil */
 842
 843     if (dot != 0 && filename[0] != '.')
 844     {
 845         len = dot - filename;
 846         len = MIN(len, buffer_size);
 847     }
 848     else
 849     {
 850         len = buffer_size;
 851     }
 852
 853     strlcpy(buffer, filename, len + 1);
 854
 855     return buffer;
 856 }
 857 #endif /* !defined(__PCTOOL__) */
 858
 859 /* Read (up to) a line of text from fd into buffer and return number of bytes
 860  * read (which may be larger than the number of bytes stored in buffer). If
 861  * an error occurs, -1 is returned (and buffer contains whatever could be
 862  * read). A line is terminated by a LF char. Neither LF nor CR chars are
 863  * stored in buffer.
 864  */
 865 int read_line(int fd, char* buffer, int buffer_size)
 866 {
 867     int count = 0;
 868     int num_read = 0;
 869
 870     errno = 0;
 871
 872     while (count < buffer_size)
 873     {
 874         unsigned char c;
 875
 876         if (1 != read(fd, &c, 1))
 877             break;
 878
 879         num_read++;
 880
 881         if ( c == '\n' )
 882             break;
 883
 884         if ( c == '\r' )
 885             continue;
 886
 887         buffer[count++] = c;
 888     }
 889
 890     buffer[MIN(count, buffer_size - 1)] = 0;
 891
 892     return errno ? -1 : num_read;
 893 }
 894
 895
 896 char* skip_whitespace(char* const str)
 897 {
 898     char *s = str;
 899
 900     while (isspace(*s))
 901         s++;
 902
 903     return s;
 904 }
 905
 906 /* Format time into buf.
 907  *
 908  * buf      - buffer to format to.
 909  * buf_size - size of buffer.
 910  * t        - time to format, in milliseconds.
 911  */
 912 void format_time(char* buf, int buf_size, long t)
 913 {
 914     int const time = abs(t / 1000);
 915     int const hours = time / 3600;
 916     int const minutes = time / 60 - hours * 60;
 917     int const seconds = time % 60;
 918     const char * const sign = &"-"[t < 0 ? 0 : 1];
 919
 920     if ( hours == 0 )
 921     {
 922         snprintf(buf, buf_size, "%s%d:%02d", sign, minutes, seconds);
 923     }
 924     else
 925     {
 926         snprintf(buf, buf_size, "%s%d:%02d:%02d", sign, hours, minutes,
 927                  seconds);
 928     }
 929 }
 930
 931
 932 /** Open a UTF-8 file and set file descriptor to first byte after BOM.
 933  *  If no BOM is present this behaves like open().
 934  *  If the file is opened for writing and O_TRUNC is set, write a BOM to
 935  *  the opened file and leave the file pointer set after the BOM.
 936  */
 937 #define BOM "\xef\xbb\xbf"
 938 #define BOM_SIZE 3
 939
 940 int open_utf8(const char* pathname, int flags)
 941 {
 942     int fd;
 943     unsigned char bom[BOM_SIZE];
 944
 945     fd = open(pathname, flags, 0666);
 946     if(fd < 0)
 947         return fd;
 948
 949     if(flags & (O_TRUNC | O_WRONLY))
 950     {
 951         write(fd, BOM, BOM_SIZE);
 952     }
 953     else
 954     {
 955         read(fd, bom, BOM_SIZE);
 956         /* check for BOM */
 957         if(memcmp(bom, BOM, BOM_SIZE))
 958             lseek(fd, 0, SEEK_SET);
 959     }
 960     return fd;
 961 }
 962
 963
 964 #ifdef HAVE_LCD_COLOR
 965 /*
 966  * Helper function to convert a string of 6 hex digits to a native colour
 967  */
 968
 969 static int hex2dec(int c)
 970 {
 971     return  (((c) >= '0' && ((c) <= '9')) ? (c) - '0' :
 972                                             (toupper(c)) - 'A' + 10);
 973 }
 974
 975 int hex_to_rgb(const char* hex, int* color)
 976 {
 977     int red, green, blue;
 978     int i = 0;
 979
 980     while ((i < 6) && (isxdigit(hex[i])))
 981         i++;
 982
 983     if (i < 6)
 984         return -1;
 985
 986     red = (hex2dec(hex[0]) << 4) | hex2dec(hex[1]);
 987     green = (hex2dec(hex[2]) << 4) | hex2dec(hex[3]);
 988     blue = (hex2dec(hex[4]) << 4) | hex2dec(hex[5]);
 989
 990     *color = LCD_RGBPACK(red,green,blue);
 991
 992     return 0;
 993 }
 994 #endif /* HAVE_LCD_COLOR */
 995
 996 #ifdef HAVE_LCD_BITMAP
 997 /* '0'-'3' are ASCII 0x30 to 0x33 */
 998 #define is0123(x) (((x) & 0xfc) == 0x30)
 999 #if !defined(__PCTOOL__) || defined(CHECKWPS)
1000 bool parse_color(enum screen_type screen, char *text, int *value)
1001 {
1002     (void)text; (void)value; /* silence warnings on mono bitmap */
1003     (void)screen;
1004
1005 #ifdef HAVE_LCD_COLOR
1006     if (screens[screen].depth > 2)
1007     {
1008         if (hex_to_rgb(text, value) < 0)
1009             return false;
1010         else
1011             return true;
1012     }
1013 #endif
1014
1015 #if LCD_DEPTH == 2 || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 2)
1016     if (screens[screen].depth == 2)
1017     {
1018         if (text[1] != '\0' || !is0123(*text))
1019             return false;
1020         *value = *text - '0';
1021         return true;
1022     }
1023 #endif
1024     return false;
1025 }
1026 #endif /* !defined(__PCTOOL__) || defined(CHECKWPS) */
1027
1028 /* only used in USB HID and set_time screen */
1029 #if defined(USB_ENABLE_HID) || (CONFIG_RTC != 0)
1030 int clamp_value_wrap(int value, int max, int min)
1031 {
1032     if (value > max)
1033         return min;
1034     if (value < min)
1035         return max;
1036     return value;
1037 }
1038 #endif
1039 #endif