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  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include <stdlib.h>
  20 #include <ctype.h>
  21 #include "lang.h"
  22 #include "string.h"
  23 #include "config.h"
  24 #include "file.h"
  25 #include "dir.h"
  26 #include "lcd.h"
  27 #include "lcd-remote.h"
  28 #include "sprintf.h"
  29 #include "errno.h"
  30 #include "system.h"
  31 #include "timefuncs.h"
  32 #include "screens.h"
  33 #include "talk.h"
  34 #include "mpeg.h"
  35 #include "audio.h"
  36 #include "mp3_playback.h"
  37 #include "settings.h"
  38 #include "ata.h"
  39 #include "ata_idle_notify.h"
  40 #include "kernel.h"
  41 #include "power.h"
  42 #include "powermgmt.h"
  43 #include "backlight.h"
  44 #include "atoi.h"
  45 #include "version.h"
  46 #include "font.h"
  47 #include "splash.h"
  48 #include "tagcache.h"
  49 #include "scrobbler.h"
  50 #ifdef HAVE_MMC
  51 #include "ata_mmc.h"
  52 #endif
  53 #include "tree.h"
  54 #include "eeprom_settings.h"
  55
  56 #ifdef HAVE_LCD_BITMAP
  57 #include "bmp.h"
  58 #include "icons.h"
  59 #endif /* End HAVE_LCD_BITMAP */
  60 #include "gui/gwps-common.h"
  61
  62 #include "misc.h"
  63
  64 /* Format a large-range value for output, using the appropriate unit so that
  65  * the displayed value is in the range 1 <= display < 1000 (1024 for "binary"
  66  * units) if possible, and 3 significant digits are shown. If a buffer is
  67  * given, the result is snprintf()'d into that buffer, otherwise the result is
  68  * voiced.*/
  69 char *output_dyn_value(char *buf, int buf_size, int value,
  70                        const unsigned char **units, bool bin_scale)
  71 {
  72     int scale = bin_scale ? 1024 : 1000;
  73     int fraction = 0;
  74     int unit_no = 0;
  75     int i;
  76     char tbuf[5];
  77
  78     while (value >= scale)
  79     {
  80         fraction = value % scale;
  81         value /= scale;
  82         unit_no++;
  83     }
  84     if (bin_scale)
  85         fraction = fraction * 1000 / 1024;
  86
  87     if (value >= 100 || !unit_no)
  88         tbuf[0] = '\0';
  89     else if (value >= 10)
  90         snprintf(tbuf, sizeof(tbuf), "%01d", fraction / 100);
  91     else
  92         snprintf(tbuf, sizeof(tbuf), "%02d", fraction / 10);
  93
  94     if (buf)
  95     {
  96         if (strlen(tbuf))
  97             snprintf(buf, buf_size, "%d%s%s%s", value, str(LANG_POINT),
  98                      tbuf, P2STR(units[unit_no]));
  99         else
 100             snprintf(buf, buf_size, "%d%s", value, P2STR(units[unit_no]));
 101     }
 102     else
 103     {
 104         /* strip trailing zeros from the fraction */
 105         for (i = strlen(tbuf) - 1; (i >= 0) && (tbuf[i] == '0'); i--)
 106             tbuf[i] = '\0';
 107
 108         talk_number(value, true);
 109         if (tbuf[0] != 0)
 110         {
 111             talk_id(LANG_POINT, true);
 112             talk_spell(tbuf, true);
 113         }
 114         talk_id(P2ID(units[unit_no]), true);
 115     }
 116     return buf;
 117 }
 118
 119 /* Create a filename with a number part in a way that the number is 1
 120  * higher than the highest numbered file matching the same pattern.
 121  * It is allowed that buffer and path point to the same memory location,
 122  * saving a strcpy(). Path must always be given without trailing slash.
 123  * "num" can point to an int specifying the number to use or NULL or a value
 124  * less than zero to number automatically. The final number used will also
 125  * be returned in *num. If *num is >= 0 then *num will be incremented by
 126  * one. */
 127 char *create_numbered_filename(char *buffer, const char *path,
 128                                const char *prefix, const char *suffix,
 129                                int numberlen IF_CNFN_NUM_(, int *num))
 130 {
 131     DIR *dir;
 132     struct dirent *entry;
 133     int max_num;
 134     int pathlen;
 135     int prefixlen = strlen(prefix);
 136     char fmtstring[12];
 137
 138     if (buffer != path)
 139         strncpy(buffer, path, MAX_PATH);
 140
 141     pathlen = strlen(buffer);
 142
 143 #ifdef IF_CNFN_NUM
 144     if (num && *num >= 0)
 145     {
 146         /* number specified */
 147         max_num = *num;
 148     }
 149     else
 150 #endif
 151     {
 152         /* automatic numbering */
 153         max_num = 0;
 154
 155     dir = opendir(pathlen ? buffer : "/");
 156     if (!dir)
 157         return NULL;
 158
 159     while ((entry = readdir(dir)))
 160     {
 161         int curr_num;
 162
 163         if (strncasecmp((char *)entry->d_name, prefix, prefixlen)
 164             || strcasecmp((char *)entry->d_name + prefixlen + numberlen, suffix))
 165             continue;
 166
 167         curr_num = atoi((char *)entry->d_name + prefixlen);
 168         if (curr_num > max_num)
 169             max_num = curr_num;
 170     }
 171
 172     closedir(dir);
 173     }
 174
 175     max_num++;
 176
 177     snprintf(fmtstring, sizeof(fmtstring), "/%%s%%0%dd%%s", numberlen);
 178     snprintf(buffer + pathlen, MAX_PATH - pathlen, fmtstring, prefix,
 179              max_num, suffix);
 180
 181 #ifdef IF_CNFN_NUM
 182     if (num)
 183         *num = max_num;
 184 #endif
 185
 186     return buffer;
 187 }
 188
 189 #ifdef CONFIG_RTC
 190 /* Create a filename with a date+time part.
 191    It is allowed that buffer and path point to the same memory location,
 192    saving a strcpy(). Path must always be given without trailing slash.
 193    unique_time as true makes the function wait until the current time has
 194    changed. */
 195 char *create_datetime_filename(char *buffer, const char *path,
 196                                const char *prefix, const char *suffix,
 197                                bool unique_time)
 198 {
 199     struct tm *tm = get_time();
 200     static struct tm last_tm;
 201     int pathlen;
 202
 203     while (unique_time && !memcmp(get_time(), &last_tm, sizeof (struct tm)))
 204         sleep(HZ/10);
 205
 206     last_tm = *tm;
 207
 208     if (buffer != path)
 209         strncpy(buffer, path, MAX_PATH);
 210
 211     pathlen = strlen(buffer);
 212     snprintf(buffer + pathlen, MAX_PATH - pathlen,
 213              "/%s%02d%02d%02d-%02d%02d%02d%s", prefix,
 214              tm->tm_year % 100, tm->tm_mon + 1, tm->tm_mday,
 215              tm->tm_hour, tm->tm_min, tm->tm_sec, suffix);
 216
 217     return buffer;
 218 }
 219 #endif /* CONFIG_RTC */
 220
 221 /* Read (up to) a line of text from fd into buffer and return number of bytes
 222  * read (which may be larger than the number of bytes stored in buffer). If
 223  * an error occurs, -1 is returned (and buffer contains whatever could be
 224  * read). A line is terminated by a LF char. Neither LF nor CR chars are
 225  * stored in buffer.
 226  */
 227 int read_line(int fd, char* buffer, int buffer_size)
 228 {
 229     int count = 0;
 230     int num_read = 0;
 231
 232     errno = 0;
 233
 234     while (count < buffer_size)
 235     {
 236         unsigned char c;
 237
 238         if (1 != read(fd, &c, 1))
 239             break;
 240
 241         num_read++;
 242
 243         if ( c == '\n' )
 244             break;
 245
 246         if ( c == '\r' )
 247             continue;
 248
 249         buffer[count++] = c;
 250     }
 251
 252     buffer[MIN(count, buffer_size - 1)] = 0;
 253
 254     return errno ? -1 : num_read;
 255 }
 256
 257 /* Performance optimized version of the previous function. */
 258 int fast_readline(int fd, char *buf, int buf_size, void *parameters,
 259                   int (*callback)(int n, const char *buf, void *parameters))
 260 {
 261     char *p, *next;
 262     int rc, pos = 0;
 263     int count = 0;
 264
 265     while ( 1 )
 266     {
 267         next = NULL;
 268
 269         rc = read(fd, &buf[pos], buf_size - pos - 1);
 270         if (rc >= 0)
 271             buf[pos+rc] = '\0';
 272
 273         if ( (p = strchr(buf, '\r')) != NULL)
 274         {
 275             *p = '\0';
 276             next = ++p;
 277         }
 278         else
 279             p = buf;
 280
 281         if ( (p = strchr(p, '\n')) != NULL)
 282         {
 283             *p = '\0';
 284             next = ++p;
 285         }
 286
 287         rc = callback(count, buf, parameters);
 288         if (rc < 0)
 289             return rc;
 290
 291         count++;
 292         if (next)
 293         {
 294             pos = buf_size - ((long)next - (long)buf) - 1;
 295             memmove(buf, next, pos);
 296         }
 297         else
 298             break ;
 299     }
 300
 301     return 0;
 302 }
 303
 304 #ifdef HAVE_LCD_BITMAP
 305
 306 #if LCD_DEPTH == 16
 307 #define BMP_COMPRESSION 3 /* BI_BITFIELDS */
 308 #define BMP_NUMCOLORS 3
 309 #else
 310 #define BMP_COMPRESSION 0 /* BI_RGB */
 311 #if LCD_DEPTH <= 8
 312 #define BMP_NUMCOLORS (1 << LCD_DEPTH)
 313 #else
 314 #define BMP_NUMCOLORS 0
 315 #endif
 316 #endif
 317
 318 #if LCD_DEPTH == 1
 319 #define BMP_BPP 1
 320 #define BMP_LINESIZE ((LCD_WIDTH/8 + 3) & ~3)
 321 #elif LCD_DEPTH <= 4
 322 #define BMP_BPP 4
 323 #define BMP_LINESIZE ((LCD_WIDTH/2 + 3) & ~3)
 324 #elif LCD_DEPTH <= 8
 325 #define BMP_BPP 8
 326 #define BMP_LINESIZE ((LCD_WIDTH + 3) & ~3)
 327 #elif LCD_DEPTH <= 16
 328 #define BMP_BPP 16
 329 #define BMP_LINESIZE ((LCD_WIDTH*2 + 3) & ~3)
 330 #else
 331 #define BMP_BPP 24
 332 #define BMP_LINESIZE ((LCD_WIDTH*3 + 3) & ~3)
 333 #endif
 334
 335 #define BMP_HEADERSIZE (54 + 4 * BMP_NUMCOLORS)
 336 #define BMP_DATASIZE   (BMP_LINESIZE * LCD_HEIGHT)
 337 #define BMP_TOTALSIZE  (BMP_HEADERSIZE + BMP_DATASIZE)
 338
 339 #define LE16_CONST(x) (x)&0xff, ((x)>>8)&0xff
 340 #define LE32_CONST(x) (x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff
 341
 342 static const unsigned char bmpheader[] =
 343 {
 344     0x42, 0x4d,                 /* 'BM' */
 345     LE32_CONST(BMP_TOTALSIZE),  /* Total file size */
 346     0x00, 0x00, 0x00, 0x00,     /* Reserved */
 347     LE32_CONST(BMP_HEADERSIZE), /* Offset to start of pixel data */
 348
 349     0x28, 0x00, 0x00, 0x00,     /* Size of (2nd) header */
 350     LE32_CONST(LCD_WIDTH),      /* Width in pixels */
 351     LE32_CONST(LCD_HEIGHT),     /* Height in pixels */
 352     0x01, 0x00,                 /* Number of planes (always 1) */
 353     LE16_CONST(BMP_BPP),        /* Bits per pixel 1/4/8/16/24 */
 354     LE32_CONST(BMP_COMPRESSION),/* Compression mode */
 355     LE32_CONST(BMP_DATASIZE),   /* Size of bitmap data */
 356     0xc4, 0x0e, 0x00, 0x00,     /* Horizontal resolution (pixels/meter) */
 357     0xc4, 0x0e, 0x00, 0x00,     /* Vertical resolution (pixels/meter) */
 358     LE32_CONST(BMP_NUMCOLORS),  /* Number of used colours */
 359     LE32_CONST(BMP_NUMCOLORS),  /* Number of important colours */
 360
 361 #if LCD_DEPTH == 1
 362     0x90, 0xee, 0x90, 0x00,     /* Colour #0 */
 363     0x00, 0x00, 0x00, 0x00      /* Colour #1 */
 364 #elif LCD_DEPTH == 2
 365     0xe6, 0xd8, 0xad, 0x00,     /* Colour #0 */
 366     0x99, 0x90, 0x73, 0x00,     /* Colour #1 */
 367     0x4c, 0x48, 0x39, 0x00,     /* Colour #2 */
 368     0x00, 0x00, 0x00, 0x00      /* Colour #3 */
 369 #elif LCD_DEPTH == 16
 370     0x00, 0xf8, 0x00, 0x00,     /* red bitfield mask */
 371     0xe0, 0x07, 0x00, 0x00,     /* green bitfield mask */
 372     0x1f, 0x00, 0x00, 0x00      /* blue bitfield mask */
 373 #endif
 374 };
 375
 376 static void (*screen_dump_hook)(int fh) = NULL;
 377
 378 void screen_dump(void)
 379 {
 380     int fh;
 381     char filename[MAX_PATH];
 382     int bx, by;
 383 #if LCD_DEPTH == 1
 384     static unsigned char line_block[8][BMP_LINESIZE];
 385 #elif LCD_DEPTH == 2
 386 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING
 387     static unsigned char line_block[BMP_LINESIZE];
 388 #else
 389     static unsigned char line_block[4][BMP_LINESIZE];
 390 #endif
 391 #elif LCD_DEPTH == 16
 392     static unsigned short line_block[BMP_LINESIZE/2];
 393 #endif
 394
 395 #ifdef CONFIG_RTC
 396     create_datetime_filename(filename, "", "dump ", ".bmp", false);
 397 #else
 398     create_numbered_filename(filename, "", "dump_", ".bmp", 4
 399                              IF_CNFN_NUM_(, NULL));
 400 #endif
 401
 402     fh = creat(filename, O_WRONLY);
 403     if (fh < 0)
 404         return;
 405
 406     if (screen_dump_hook)
 407     {
 408         screen_dump_hook(fh);
 409     }
 410     else
 411     {
 412         write(fh, bmpheader, sizeof(bmpheader));
 413
 414         /* BMP image goes bottom up */
 415 #if LCD_DEPTH == 1
 416         for (by = LCD_HEIGHT/8 - 1; by >= 0; by--)
 417         {
 418             unsigned char *src = &lcd_framebuffer[by][0];
 419             unsigned char *dst = &line_block[0][0];
 420
 421             memset(line_block, 0, sizeof(line_block));
 422             for (bx = LCD_WIDTH/8; bx > 0; bx--)
 423             {
 424                 unsigned dst_mask = 0x80;
 425                 int ix;
 426
 427                 for (ix = 8; ix > 0; ix--)
 428                 {
 429                     unsigned char *dst_blk = dst;
 430                     unsigned src_byte = *src++;
 431                     int iy;
 432
 433                     for (iy = 8; iy > 0; iy--)
 434                     {
 435                         if (src_byte & 0x80)
 436                             *dst_blk |= dst_mask;
 437                         src_byte <<= 1;
 438                         dst_blk += BMP_LINESIZE;
 439                     }
 440                     dst_mask >>= 1;
 441                 }
 442                 dst++;
 443             }
 444
 445             write(fh, line_block, sizeof(line_block));
 446         }
 447 #elif LCD_DEPTH == 2
 448 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING
 449         for (by = LCD_HEIGHT - 1; by >= 0; by--)
 450         {
 451             unsigned char *src = &lcd_framebuffer[by][0];
 452             unsigned char *dst = line_block;
 453
 454             memset(line_block, 0, sizeof(line_block));
 455             for (bx = (LCD_WIDTH+3)/4; bx > 0; bx--)
 456             {
 457                 unsigned src_byte = *src++;
 458
 459                 *dst++ = ((src_byte >> 2) & 0x30) | ((src_byte >> 4) & 0x03);
 460                 *dst++ = ((src_byte << 2) & 0x30) | (src_byte & 0x03);
 461             }
 462
 463             write(fh, line_block, sizeof(line_block));
 464         }
 465 #else /* VERTICAL_PACKING */
 466         for (by = LCD_HEIGHT/4 - 1; by >= 0; by--)
 467         {
 468             unsigned char *src = &lcd_framebuffer[by][0];
 469             unsigned char *dst = &line_block[3][0];
 470
 471             memset(line_block, 0, sizeof(line_block));
 472             for (bx = LCD_WIDTH/2; bx > 0; bx--)
 473             {
 474                 unsigned char *dst_blk = dst++;
 475                 unsigned src_byte0 = *src++;
 476                 unsigned src_byte1 = *src++;
 477                 int iy;
 478
 479                 for (iy = 4; iy > 0; iy--)
 480                 {
 481                     *dst_blk = ((src_byte0 & 3) << 4) | (src_byte1 & 3);
 482                     src_byte0 >>= 2;
 483                     src_byte1 >>= 2;
 484                     dst_blk -= BMP_LINESIZE;
 485                 }
 486             }
 487
 488             write(fh, line_block, sizeof(line_block));
 489         }
 490 #endif
 491 #elif LCD_DEPTH == 16
 492         for (by = LCD_HEIGHT - 1; by >= 0; by--)
 493         {
 494             unsigned short *src = &lcd_framebuffer[by][0];
 495             unsigned short *dst = line_block;
 496
 497             memset(line_block, 0, sizeof(line_block));
 498             for (bx = LCD_WIDTH; bx > 0; bx--)
 499             {
 500 #if (LCD_PIXELFORMAT == RGB565SWAPPED)
 501                 /* iPod LCD data is big endian although the CPU is not */
 502                 *dst++ = htobe16(*src++);
 503 #else
 504                 *dst++ = htole16(*src++);
 505 #endif
 506             }
 507
 508             write(fh, line_block, sizeof(line_block));
 509         }
 510 #endif /* LCD_DEPTH */
 511     }
 512
 513     close(fh);
 514 }
 515
 516 void screen_dump_set_hook(void (*hook)(int fh))
 517 {
 518     screen_dump_hook = hook;
 519 }
 520
 521 #endif /* HAVE_LCD_BITMAP */
 522
 523 /* parse a line from a configuration file. the line format is:
 524
 525    name: value
 526
 527    Any whitespace before setting name or value (after ':') is ignored.
 528    A # as first non-whitespace character discards the whole line.
 529    Function sets pointers to null-terminated setting name and value.
 530    Returns false if no valid config entry was found.
 531 */
 532
 533 bool settings_parseline(char* line, char** name, char** value)
 534 {
 535     char* ptr;
 536
 537     while ( isspace(*line) )
 538         line++;
 539
 540     if ( *line == '#' )
 541         return false;
 542
 543     ptr = strchr(line, ':');
 544     if ( !ptr )
 545         return false;
 546
 547     *name = line;
 548     *ptr = 0;
 549     ptr++;
 550     while (isspace(*ptr))
 551         ptr++;
 552     *value = ptr;
 553     return true;
 554 }
 555
 556 static void system_flush(void)
 557 {
 558     call_ata_idle_notifys(false); /*doesnt work on usb and shutdown from ata thread */
 559     tree_flush();
 560 }
 561
 562 static void system_restore(void)
 563 {
 564     tree_restore();
 565 }
 566
 567 static bool clean_shutdown(void (*callback)(void *), void *parameter)
 568 {
 569 #ifdef SIMULATOR
 570     (void)callback;
 571     (void)parameter;
 572     call_ata_idle_notifys(false);
 573     exit(0);
 574 #else
 575     int i;
 576
 577 #if defined(CONFIG_CHARGING) && !defined(HAVE_POWEROFF_WHILE_CHARGING)
 578     if(!charger_inserted())
 579 #endif
 580     {
 581         FOR_NB_SCREENS(i)
 582             screens[i].clear_display();
 583 #ifdef X5_BACKLIGHT_SHUTDOWN
 584         x5_backlight_shutdown();
 585 #endif
 586         if (!battery_level_safe())
 587             gui_syncsplash(3*HZ, true, "%s %s",
 588                            str(LANG_WARNING_BATTERY_EMPTY),
 589                            str(LANG_SHUTTINGDOWN));
 590         else if (battery_level_critical())
 591             gui_syncsplash(3*HZ, true, "%s %s",
 592                            str(LANG_WARNING_BATTERY_LOW),
 593                            str(LANG_SHUTTINGDOWN));
 594         else {
 595 #ifdef HAVE_TAGCACHE
 596             if (!tagcache_prepare_shutdown())
 597             {
 598                 cancel_shutdown();
 599                 gui_syncsplash(HZ, true, str(LANG_TAGCACHE_BUSY));
 600                 return false;
 601             }
 602 #endif
 603             gui_syncsplash(0, true, str(LANG_SHUTTINGDOWN));
 604         }
 605
 606         if (global_settings.fade_on_stop
 607             && (audio_status() & AUDIO_STATUS_PLAY))
 608         {
 609             fade(0);
 610         }
 611
 612         audio_stop();
 613         while (audio_status())
 614             sleep(1);
 615
 616         if (callback != NULL)
 617             callback(parameter);
 618
 619         if (!battery_level_critical()) /* do not save on critical battery */
 620             system_flush();
 621 #ifdef HAVE_EEPROM_SETTINGS
 622         if (firmware_settings.initialized)
 623         {
 624             firmware_settings.disk_clean = true;
 625             firmware_settings.bl_version = 0;
 626             eeprom_settings_store();
 627         }
 628 #endif
 629         shutdown_hw();
 630     }
 631 #endif
 632     return false;
 633 }
 634
 635 #ifdef CONFIG_CHARGING
 636 static bool waiting_to_resume_play = false;
 637 static long play_resume_tick;
 638
 639 static void car_adapter_mode_processing(bool inserted)
 640 {
 641     if (global_settings.car_adapter_mode)
 642     {
 643         if(inserted)
 644         {
 645             /*
 646              * Just got plugged in, delay & resume if we were playing
 647              */
 648             if (audio_status() & AUDIO_STATUS_PAUSE)
 649             {
 650                 /* delay resume a bit while the engine is cranking */
 651                 play_resume_tick = current_tick + HZ*5;
 652                 waiting_to_resume_play = true;
 653             }
 654         }
 655         else
 656         {
 657             /*
 658              * Just got unplugged, pause if playing
 659              */
 660             if ((audio_status() & AUDIO_STATUS_PLAY) &&
 661                 !(audio_status() & AUDIO_STATUS_PAUSE))
 662             {
 663                 audio_pause();
 664             }
 665         }
 666     }
 667 }
 668
 669 static void car_adapter_tick(void)
 670 {
 671     if (waiting_to_resume_play)
 672     {
 673         if (TIME_AFTER(current_tick, play_resume_tick))
 674         {
 675             if (audio_status() & AUDIO_STATUS_PAUSE)
 676             {
 677                 audio_resume();
 678             }
 679             waiting_to_resume_play = false;
 680         }
 681     }
 682 }
 683
 684 void car_adapter_mode_init(void)
 685 {
 686     tick_add_task(car_adapter_tick);
 687 }
 688 #endif
 689
 690 #ifdef HAVE_HEADPHONE_DETECTION
 691 void unplug_change(bool inserted)
 692 {
 693     if (global_settings.unplug_mode)
 694     {
 695         if (inserted)
 696         {
 697             if ( global_settings.unplug_mode > 1 )
 698                 audio_resume();
 699             backlight_on();
 700         } else {
 701             audio_pause();
 702
 703             if (global_settings.unplug_rw)
 704             {
 705                 if ( audio_current_track()->elapsed >
 706                 (unsigned long)(global_settings.unplug_rw*1000))
 707                     audio_ff_rewind(audio_current_track()->elapsed -
 708                     (global_settings.unplug_rw*1000));
 709                 else
 710                     audio_ff_rewind(0);
 711             }
 712         }
 713     }
 714 }
 715 #endif
 716
 717 long default_event_handler_ex(long event, void (*callback)(void *), void *parameter)
 718 {
 719     switch(event)
 720     {
 721         case SYS_USB_CONNECTED:
 722             if (callback != NULL)
 723                 callback(parameter);
 724 #ifdef HAVE_MMC
 725             if (!mmc_touched() || (mmc_remove_request() == SYS_MMC_EXTRACTED))
 726 #endif
 727             {
 728                 scrobbler_flush_cache();
 729                 system_flush();
 730                 usb_screen();
 731                 system_restore();
 732             }
 733             return SYS_USB_CONNECTED;
 734         case SYS_POWEROFF:
 735             if (!clean_shutdown(callback, parameter))
 736                 return SYS_POWEROFF;
 737             break;
 738 #ifdef CONFIG_CHARGING
 739         case SYS_CHARGER_CONNECTED:
 740             car_adapter_mode_processing(true);
 741             return SYS_CHARGER_CONNECTED;
 742
 743         case SYS_CHARGER_DISCONNECTED:
 744             car_adapter_mode_processing(false);
 745             return SYS_CHARGER_DISCONNECTED;
 746 #endif
 747 #ifdef HAVE_HEADPHONE_DETECTION
 748         case SYS_PHONE_PLUGGED:
 749             unplug_change(true);
 750             return SYS_PHONE_PLUGGED;
 751
 752         case SYS_PHONE_UNPLUGGED:
 753             unplug_change(false);
 754             return SYS_PHONE_UNPLUGGED;
 755 #endif
 756     }
 757     return 0;
 758 }
 759
 760 long default_event_handler(long event)
 761 {
 762     return default_event_handler_ex(event, NULL, NULL);
 763 }
 764
 765 int show_logo( void )
 766 {
 767 #ifdef HAVE_LCD_BITMAP
 768     char version[32];
 769     int font_h, font_w;
 770
 771     lcd_clear_display();
 772     lcd_bitmap(rockboxlogo, 0, 10, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
 773
 774 #ifdef HAVE_REMOTE_LCD
 775     lcd_remote_clear_display();
 776     lcd_remote_bitmap(remote_rockboxlogo, 0, 10, BMPWIDTH_remote_rockboxlogo,
 777                       BMPHEIGHT_remote_rockboxlogo);
 778 #endif
 779
 780     snprintf(version, sizeof(version), "Ver. %s", appsversion);
 781     lcd_setfont(FONT_SYSFIXED);
 782     lcd_getstringsize((unsigned char *)"A", &font_w, &font_h);
 783     lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2),
 784                LCD_HEIGHT-font_h, (unsigned char *)version);
 785     lcd_update();
 786
 787 #ifdef HAVE_REMOTE_LCD
 788     lcd_remote_setfont(FONT_SYSFIXED);
 789     lcd_remote_getstringsize((unsigned char *)"A", &font_w, &font_h);
 790     lcd_remote_putsxy((LCD_REMOTE_WIDTH/2) - ((strlen(version)*font_w)/2),
 791                LCD_REMOTE_HEIGHT-font_h, (unsigned char *)version);
 792     lcd_remote_update();
 793 #endif
 794
 795 #else
 796     char *rockbox = "  ROCKbox!";
 797     lcd_clear_display();
 798     lcd_double_height(true);
 799     lcd_puts(0, 0, rockbox);
 800     lcd_puts(0, 1, appsversion);
 801 #endif
 802
 803     return 0;
 804 }
 805
 806 #if CONFIG_CODEC == SWCODEC
 807 int get_replaygain_mode(bool have_track_gain, bool have_album_gain)
 808 {
 809     int type;
 810
 811     bool track = ((global_settings.replaygain_type == REPLAYGAIN_TRACK)
 812         || ((global_settings.replaygain_type == REPLAYGAIN_SHUFFLE)
 813             && global_settings.playlist_shuffle));
 814
 815     type = (!track && have_album_gain) ? REPLAYGAIN_ALBUM
 816         : have_track_gain ? REPLAYGAIN_TRACK : -1;
 817
 818     return type;
 819 }
 820 #endif