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 #ifdef BOOTFILE
  65 #ifndef USB_IPODSTYLE
  66 #include "textarea.h"
  67 #include "rolo.h"
  68 #include "yesno.h"
  69 #endif
  70 #endif
  71
  72 /* Format a large-range value for output, using the appropriate unit so that
  73  * the displayed value is in the range 1 <= display < 1000 (1024 for "binary"
  74  * units) if possible, and 3 significant digits are shown. If a buffer is
  75  * given, the result is snprintf()'d into that buffer, otherwise the result is
  76  * voiced.*/
  77 char *output_dyn_value(char *buf, int buf_size, int value,
  78                        const unsigned char **units, bool bin_scale)
  79 {
  80     int scale = bin_scale ? 1024 : 1000;
  81     int fraction = 0;
  82     int unit_no = 0;
  83     int i;
  84     char tbuf[5];
  85
  86     while (value >= scale)
  87     {
  88         fraction = value % scale;
  89         value /= scale;
  90         unit_no++;
  91     }
  92     if (bin_scale)
  93         fraction = fraction * 1000 / 1024;
  94
  95     if (value >= 100 || !unit_no)
  96         tbuf[0] = '\0';
  97     else if (value >= 10)
  98         snprintf(tbuf, sizeof(tbuf), "%01d", fraction / 100);
  99     else
 100         snprintf(tbuf, sizeof(tbuf), "%02d", fraction / 10);
 101
 102     if (buf)
 103     {
 104         if (strlen(tbuf))
 105             snprintf(buf, buf_size, "%d%s%s%s", value, str(LANG_POINT),
 106                      tbuf, P2STR(units[unit_no]));
 107         else
 108             snprintf(buf, buf_size, "%d%s", value, P2STR(units[unit_no]));
 109     }
 110     else
 111     {
 112         /* strip trailing zeros from the fraction */
 113         for (i = strlen(tbuf) - 1; (i >= 0) && (tbuf[i] == '0'); i--)
 114             tbuf[i] = '\0';
 115
 116         talk_number(value, true);
 117         if (tbuf[0] != 0)
 118         {
 119             talk_id(LANG_POINT, true);
 120             talk_spell(tbuf, true);
 121         }
 122         talk_id(P2ID(units[unit_no]), true);
 123     }
 124     return buf;
 125 }
 126
 127 /* Create a filename with a number part in a way that the number is 1
 128  * higher than the highest numbered file matching the same pattern.
 129  * It is allowed that buffer and path point to the same memory location,
 130  * saving a strcpy(). Path must always be given without trailing slash.
 131  * "num" can point to an int specifying the number to use or NULL or a value
 132  * less than zero to number automatically. The final number used will also
 133  * be returned in *num. If *num is >= 0 then *num will be incremented by
 134  * one. */
 135 char *create_numbered_filename(char *buffer, const char *path,
 136                                const char *prefix, const char *suffix,
 137                                int numberlen IF_CNFN_NUM_(, int *num))
 138 {
 139     DIR *dir;
 140     struct dirent *entry;
 141     int max_num;
 142     int pathlen;
 143     int prefixlen = strlen(prefix);
 144     char fmtstring[12];
 145
 146     if (buffer != path)
 147         strncpy(buffer, path, MAX_PATH);
 148
 149     pathlen = strlen(buffer);
 150
 151 #ifdef IF_CNFN_NUM
 152     if (num && *num >= 0)
 153     {
 154         /* number specified */
 155         max_num = *num;
 156     }
 157     else
 158 #endif
 159     {
 160         /* automatic numbering */
 161         max_num = 0;
 162
 163     dir = opendir(pathlen ? buffer : "/");
 164     if (!dir)
 165         return NULL;
 166
 167     while ((entry = readdir(dir)))
 168     {
 169         int curr_num;
 170
 171         if (strncasecmp((char *)entry->d_name, prefix, prefixlen)
 172             || strcasecmp((char *)entry->d_name + prefixlen + numberlen, suffix))
 173             continue;
 174
 175         curr_num = atoi((char *)entry->d_name + prefixlen);
 176         if (curr_num > max_num)
 177             max_num = curr_num;
 178     }
 179
 180     closedir(dir);
 181     }
 182
 183     max_num++;
 184
 185     snprintf(fmtstring, sizeof(fmtstring), "/%%s%%0%dd%%s", numberlen);
 186     snprintf(buffer + pathlen, MAX_PATH - pathlen, fmtstring, prefix,
 187              max_num, suffix);
 188
 189 #ifdef IF_CNFN_NUM
 190     if (num)
 191         *num = max_num;
 192 #endif
 193
 194     return buffer;
 195 }
 196
 197 /* Format time into buf.
 198  *
 199  * buf      - buffer to format to.
 200  * buf_size - size of buffer.
 201  * t        - time to format, in milliseconds.
 202  */
 203 void format_time(char* buf, int buf_size, long t)
 204 {
 205     if ( t < 3600000 )
 206     {
 207       snprintf(buf, buf_size, "%d:%02d",
 208                (int) (t / 60000), (int) (t % 60000 / 1000));
 209     }
 210     else
 211     {
 212       snprintf(buf, buf_size, "%d:%02d:%02d",
 213                (int) (t / 3600000), (int) (t % 3600000 / 60000),
 214                (int) (t % 60000 / 1000));
 215     }
 216 }
 217
 218 #if CONFIG_RTC
 219 /* Create a filename with a date+time part.
 220    It is allowed that buffer and path point to the same memory location,
 221    saving a strcpy(). Path must always be given without trailing slash.
 222    unique_time as true makes the function wait until the current time has
 223    changed. */
 224 char *create_datetime_filename(char *buffer, const char *path,
 225                                const char *prefix, const char *suffix,
 226                                bool unique_time)
 227 {
 228     struct tm *tm = get_time();
 229     static struct tm last_tm;
 230     int pathlen;
 231
 232     while (unique_time && !memcmp(get_time(), &last_tm, sizeof (struct tm)))
 233         sleep(HZ/10);
 234
 235     last_tm = *tm;
 236
 237     if (buffer != path)
 238         strncpy(buffer, path, MAX_PATH);
 239
 240     pathlen = strlen(buffer);
 241     snprintf(buffer + pathlen, MAX_PATH - pathlen,
 242              "/%s%02d%02d%02d-%02d%02d%02d%s", prefix,
 243              tm->tm_year % 100, tm->tm_mon + 1, tm->tm_mday,
 244              tm->tm_hour, tm->tm_min, tm->tm_sec, suffix);
 245
 246     return buffer;
 247 }
 248 #endif /* CONFIG_RTC */
 249
 250 /* Read (up to) a line of text from fd into buffer and return number of bytes
 251  * read (which may be larger than the number of bytes stored in buffer). If
 252  * an error occurs, -1 is returned (and buffer contains whatever could be
 253  * read). A line is terminated by a LF char. Neither LF nor CR chars are
 254  * stored in buffer.
 255  */
 256 int read_line(int fd, char* buffer, int buffer_size)
 257 {
 258     int count = 0;
 259     int num_read = 0;
 260
 261     errno = 0;
 262
 263     while (count < buffer_size)
 264     {
 265         unsigned char c;
 266
 267         if (1 != read(fd, &c, 1))
 268             break;
 269
 270         num_read++;
 271
 272         if ( c == '\n' )
 273             break;
 274
 275         if ( c == '\r' )
 276             continue;
 277
 278         buffer[count++] = c;
 279     }
 280
 281     buffer[MIN(count, buffer_size - 1)] = 0;
 282
 283     return errno ? -1 : num_read;
 284 }
 285
 286 /* Performance optimized version of the previous function. */
 287 int fast_readline(int fd, char *buf, int buf_size, void *parameters,
 288                   int (*callback)(int n, const char *buf, void *parameters))
 289 {
 290     char *p, *next;
 291     int rc, pos = 0;
 292     int count = 0;
 293
 294     while ( 1 )
 295     {
 296         next = NULL;
 297
 298         rc = read(fd, &buf[pos], buf_size - pos - 1);
 299         if (rc >= 0)
 300             buf[pos+rc] = '\0';
 301
 302         if ( (p = strchr(buf, '\r')) != NULL)
 303         {
 304             *p = '\0';
 305             next = ++p;
 306         }
 307         else
 308             p = buf;
 309
 310         if ( (p = strchr(p, '\n')) != NULL)
 311         {
 312             *p = '\0';
 313             next = ++p;
 314         }
 315
 316         rc = callback(count, buf, parameters);
 317         if (rc < 0)
 318             return rc;
 319
 320         count++;
 321         if (next)
 322         {
 323             pos = buf_size - ((long)next - (long)buf) - 1;
 324             memmove(buf, next, pos);
 325         }
 326         else
 327             break ;
 328     }
 329
 330     return 0;
 331 }
 332
 333 #ifdef HAVE_LCD_BITMAP
 334
 335 #if LCD_DEPTH == 16
 336 #define BMP_COMPRESSION 3 /* BI_BITFIELDS */
 337 #define BMP_NUMCOLORS 3
 338 #else
 339 #define BMP_COMPRESSION 0 /* BI_RGB */
 340 #if LCD_DEPTH <= 8
 341 #define BMP_NUMCOLORS (1 << LCD_DEPTH)
 342 #else
 343 #define BMP_NUMCOLORS 0
 344 #endif
 345 #endif
 346
 347 #if LCD_DEPTH == 1
 348 #define BMP_BPP 1
 349 #define BMP_LINESIZE ((LCD_WIDTH/8 + 3) & ~3)
 350 #elif LCD_DEPTH <= 4
 351 #define BMP_BPP 4
 352 #define BMP_LINESIZE ((LCD_WIDTH/2 + 3) & ~3)
 353 #elif LCD_DEPTH <= 8
 354 #define BMP_BPP 8
 355 #define BMP_LINESIZE ((LCD_WIDTH + 3) & ~3)
 356 #elif LCD_DEPTH <= 16
 357 #define BMP_BPP 16
 358 #define BMP_LINESIZE ((LCD_WIDTH*2 + 3) & ~3)
 359 #else
 360 #define BMP_BPP 24
 361 #define BMP_LINESIZE ((LCD_WIDTH*3 + 3) & ~3)
 362 #endif
 363
 364 #define BMP_HEADERSIZE (54 + 4 * BMP_NUMCOLORS)
 365 #define BMP_DATASIZE   (BMP_LINESIZE * LCD_HEIGHT)
 366 #define BMP_TOTALSIZE  (BMP_HEADERSIZE + BMP_DATASIZE)
 367
 368 #define LE16_CONST(x) (x)&0xff, ((x)>>8)&0xff
 369 #define LE32_CONST(x) (x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff
 370
 371 static const unsigned char bmpheader[] =
 372 {
 373     0x42, 0x4d,                 /* 'BM' */
 374     LE32_CONST(BMP_TOTALSIZE),  /* Total file size */
 375     0x00, 0x00, 0x00, 0x00,     /* Reserved */
 376     LE32_CONST(BMP_HEADERSIZE), /* Offset to start of pixel data */
 377
 378     0x28, 0x00, 0x00, 0x00,     /* Size of (2nd) header */
 379     LE32_CONST(LCD_WIDTH),      /* Width in pixels */
 380     LE32_CONST(LCD_HEIGHT),     /* Height in pixels */
 381     0x01, 0x00,                 /* Number of planes (always 1) */
 382     LE16_CONST(BMP_BPP),        /* Bits per pixel 1/4/8/16/24 */
 383     LE32_CONST(BMP_COMPRESSION),/* Compression mode */
 384     LE32_CONST(BMP_DATASIZE),   /* Size of bitmap data */
 385     0xc4, 0x0e, 0x00, 0x00,     /* Horizontal resolution (pixels/meter) */
 386     0xc4, 0x0e, 0x00, 0x00,     /* Vertical resolution (pixels/meter) */
 387     LE32_CONST(BMP_NUMCOLORS),  /* Number of used colours */
 388     LE32_CONST(BMP_NUMCOLORS),  /* Number of important colours */
 389
 390 #if LCD_DEPTH == 1
 391     0x90, 0xee, 0x90, 0x00,     /* Colour #0 */
 392     0x00, 0x00, 0x00, 0x00      /* Colour #1 */
 393 #elif LCD_DEPTH == 2
 394     0xe6, 0xd8, 0xad, 0x00,     /* Colour #0 */
 395     0x99, 0x90, 0x73, 0x00,     /* Colour #1 */
 396     0x4c, 0x48, 0x39, 0x00,     /* Colour #2 */
 397     0x00, 0x00, 0x00, 0x00      /* Colour #3 */
 398 #elif LCD_DEPTH == 16
 399     0x00, 0xf8, 0x00, 0x00,     /* red bitfield mask */
 400     0xe0, 0x07, 0x00, 0x00,     /* green bitfield mask */
 401     0x1f, 0x00, 0x00, 0x00      /* blue bitfield mask */
 402 #endif
 403 };
 404
 405 static void (*screen_dump_hook)(int fh) = NULL;
 406
 407 void screen_dump(void)
 408 {
 409     int fh;
 410     char filename[MAX_PATH];
 411     int bx, by;
 412 #if LCD_DEPTH == 1
 413     static unsigned char line_block[8][BMP_LINESIZE];
 414 #elif LCD_DEPTH == 2
 415 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING
 416     static unsigned char line_block[BMP_LINESIZE];
 417 #else
 418     static unsigned char line_block[4][BMP_LINESIZE];
 419 #endif
 420 #elif LCD_DEPTH == 16
 421     static unsigned short line_block[BMP_LINESIZE/2];
 422 #endif
 423
 424 #if CONFIG_RTC
 425     create_datetime_filename(filename, "", "dump ", ".bmp", false);
 426 #else
 427     create_numbered_filename(filename, "", "dump_", ".bmp", 4
 428                              IF_CNFN_NUM_(, NULL));
 429 #endif
 430
 431     fh = creat(filename);
 432     if (fh < 0)
 433         return;
 434
 435     if (screen_dump_hook)
 436     {
 437         screen_dump_hook(fh);
 438     }
 439     else
 440     {
 441         write(fh, bmpheader, sizeof(bmpheader));
 442
 443         /* BMP image goes bottom up */
 444 #if LCD_DEPTH == 1
 445         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 446         {
 447             unsigned char *src = &lcd_framebuffer[by][0];
 448             unsigned char *dst = &line_block[0][0];
 449
 450             memset(line_block, 0, sizeof(line_block));
 451             for (bx = LCD_WIDTH/8; bx > 0; bx--)
 452             {
 453                 unsigned dst_mask = 0x80;
 454                 int ix;
 455
 456                 for (ix = 8; ix > 0; ix--)
 457                 {
 458                     unsigned char *dst_blk = dst;
 459                     unsigned src_byte = *src++;
 460                     int iy;
 461
 462                     for (iy = 8; iy > 0; iy--)
 463                     {
 464                         if (src_byte & 0x80)
 465                             *dst_blk |= dst_mask;
 466                         src_byte <<= 1;
 467                         dst_blk += BMP_LINESIZE;
 468                     }
 469                     dst_mask >>= 1;
 470                 }
 471                 dst++;
 472             }
 473
 474             write(fh, line_block, sizeof(line_block));
 475         }
 476 #elif LCD_DEPTH == 2
 477 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING
 478         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 479         {
 480             unsigned char *src = &lcd_framebuffer[by][0];
 481             unsigned char *dst = line_block;
 482
 483             memset(line_block, 0, sizeof(line_block));
 484             for (bx = LCD_FBWIDTH; bx > 0; bx--)
 485             {
 486                 unsigned src_byte = *src++;
 487
 488                 *dst++ = ((src_byte >> 2) & 0x30) | ((src_byte >> 4) & 0x03);
 489                 *dst++ = ((src_byte << 2) & 0x30) | (src_byte & 0x03);
 490             }
 491
 492             write(fh, line_block, sizeof(line_block));
 493         }
 494 #else /* VERTICAL_PACKING */
 495         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 496         {
 497             unsigned char *src = &lcd_framebuffer[by][0];
 498             unsigned char *dst = &line_block[3][0];
 499
 500             memset(line_block, 0, sizeof(line_block));
 501             for (bx = LCD_WIDTH/2; bx > 0; bx--)
 502             {
 503                 unsigned char *dst_blk = dst++;
 504                 unsigned src_byte0 = *src++;
 505                 unsigned src_byte1 = *src++;
 506                 int iy;
 507
 508                 for (iy = 4; iy > 0; iy--)
 509                 {
 510                     *dst_blk = ((src_byte0 & 3) << 4) | (src_byte1 & 3);
 511                     src_byte0 >>= 2;
 512                     src_byte1 >>= 2;
 513                     dst_blk -= BMP_LINESIZE;
 514                 }
 515             }
 516
 517             write(fh, line_block, sizeof(line_block));
 518         }
 519 #endif
 520 #elif LCD_DEPTH == 16
 521         for (by = LCD_HEIGHT - 1; by >= 0; by--)
 522         {
 523             unsigned short *src = &lcd_framebuffer[by][0];
 524             unsigned short *dst = line_block;
 525
 526             memset(line_block, 0, sizeof(line_block));
 527             for (bx = LCD_WIDTH; bx > 0; bx--)
 528             {
 529 #if (LCD_PIXELFORMAT == RGB565SWAPPED)
 530                 /* iPod LCD data is big endian although the CPU is not */
 531                 *dst++ = htobe16(*src++);
 532 #else
 533                 *dst++ = htole16(*src++);
 534 #endif
 535             }
 536
 537             write(fh, line_block, sizeof(line_block));
 538         }
 539 #endif /* LCD_DEPTH */
 540     }
 541
 542     close(fh);
 543 }
 544
 545 void screen_dump_set_hook(void (*hook)(int fh))
 546 {
 547     screen_dump_hook = hook;
 548 }
 549
 550 #endif /* HAVE_LCD_BITMAP */
 551
 552 /* parse a line from a configuration file. the line format is:
 553
 554    name: value
 555
 556    Any whitespace before setting name or value (after ':') is ignored.
 557    A # as first non-whitespace character discards the whole line.
 558    Function sets pointers to null-terminated setting name and value.
 559    Returns false if no valid config entry was found.
 560 */
 561
 562 bool settings_parseline(char* line, char** name, char** value)
 563 {
 564     char* ptr;
 565
 566     while ( isspace(*line) )
 567         line++;
 568
 569     if ( *line == '#' )
 570         return false;
 571
 572     ptr = strchr(line, ':');
 573     if ( !ptr )
 574         return false;
 575
 576     *name = line;
 577     *ptr = 0;
 578     ptr++;
 579     while (isspace(*ptr))
 580         ptr++;
 581     *value = ptr;
 582     return true;
 583 }
 584
 585 static void system_flush(void)
 586 {
 587     tree_flush();
 588     call_ata_idle_notifys(true); /*doesnt work on usb and shutdown from ata thread */
 589 }
 590
 591 static void system_restore(void)
 592 {
 593     tree_restore();
 594 }
 595
 596 static bool clean_shutdown(void (*callback)(void *), void *parameter)
 597 {
 598 #ifdef SIMULATOR
 599     (void)callback;
 600     (void)parameter;
 601     call_ata_idle_notifys(true);
 602     exit(0);
 603 #else
 604     int i;
 605
 606 #if CONFIG_CHARGING && !defined(HAVE_POWEROFF_WHILE_CHARGING)
 607     if(!charger_inserted())
 608 #endif
 609     {
 610         bool batt_crit = battery_level_critical();
 611         int audio_stat = audio_status();
 612
 613         FOR_NB_SCREENS(i)
 614             screens[i].clear_display();
 615 #ifdef X5_BACKLIGHT_SHUTDOWN
 616         x5_backlight_shutdown();
 617 #endif
 618         if (!battery_level_safe())
 619             gui_syncsplash(3*HZ, "%s %s",
 620                            str(LANG_WARNING_BATTERY_EMPTY),
 621                            str(LANG_SHUTTINGDOWN));
 622         else if (battery_level_critical())
 623             gui_syncsplash(3*HZ, "%s %s",
 624                            str(LANG_WARNING_BATTERY_LOW),
 625                            str(LANG_SHUTTINGDOWN));
 626         else {
 627 #ifdef HAVE_TAGCACHE
 628             if (!tagcache_prepare_shutdown())
 629             {
 630                 cancel_shutdown();
 631                 gui_syncsplash(HZ, str(LANG_TAGCACHE_BUSY));
 632                 return false;
 633             }
 634 #endif
 635             gui_syncsplash(0, str(LANG_SHUTTINGDOWN));
 636         }
 637
 638         if (global_settings.fade_on_stop
 639             && (audio_stat & AUDIO_STATUS_PLAY))
 640         {
 641             fade(0);
 642         }
 643
 644 #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC
 645         if (!batt_crit && (audio_stat & AUDIO_STATUS_RECORD))
 646         {
 647             audio_stop_recording();
 648             while(audio_status() & AUDIO_STATUS_RECORD)
 649                 sleep(1);
 650         }
 651
 652         audio_close_recording();
 653 #endif
 654         /* audio_stop_recording == audio_stop for HWCODEC */
 655
 656         audio_stop();
 657         while (audio_status())
 658             sleep(1);
 659
 660         if (callback != NULL)
 661             callback(parameter);
 662
 663         if (!batt_crit) /* do not save on critical battery */
 664             system_flush();
 665 #ifdef HAVE_EEPROM_SETTINGS
 666         if (firmware_settings.initialized)
 667         {
 668             firmware_settings.disk_clean = true;
 669             firmware_settings.bl_version = 0;
 670             eeprom_settings_store();
 671         }
 672 #endif
 673         shutdown_hw();
 674     }
 675 #endif
 676     return false;
 677 }
 678
 679 #if CONFIG_CHARGING
 680 static bool waiting_to_resume_play = false;
 681 static long play_resume_tick;
 682
 683 static void car_adapter_mode_processing(bool inserted)
 684 {
 685     if (global_settings.car_adapter_mode)
 686     {
 687         if(inserted)
 688         {
 689             /*
 690              * Just got plugged in, delay & resume if we were playing
 691              */
 692             if (audio_status() & AUDIO_STATUS_PAUSE)
 693             {
 694                 /* delay resume a bit while the engine is cranking */
 695                 play_resume_tick = current_tick + HZ*5;
 696                 waiting_to_resume_play = true;
 697             }
 698         }
 699         else
 700         {
 701             /*
 702              * Just got unplugged, pause if playing
 703              */
 704             if ((audio_status() & AUDIO_STATUS_PLAY) &&
 705                 !(audio_status() & AUDIO_STATUS_PAUSE))
 706             {
 707                 if (global_settings.fade_on_stop)
 708                     fade(0);
 709                 else
 710                     audio_pause();
 711             }
 712         }
 713     }
 714 }
 715
 716 static void car_adapter_tick(void)
 717 {
 718     if (waiting_to_resume_play)
 719     {
 720         if (TIME_AFTER(current_tick, play_resume_tick))
 721         {
 722             if (audio_status() & AUDIO_STATUS_PAUSE)
 723             {
 724                 audio_resume();
 725             }
 726             waiting_to_resume_play = false;
 727         }
 728     }
 729 }
 730
 731 void car_adapter_mode_init(void)
 732 {
 733     tick_add_task(car_adapter_tick);
 734 }
 735 #endif
 736
 737 #ifdef HAVE_HEADPHONE_DETECTION
 738 static void unplug_change(bool inserted)
 739 {
 740     if (global_settings.unplug_mode)
 741     {
 742         if (inserted)
 743         {
 744             if ( global_settings.unplug_mode > 1 )
 745                 audio_resume();
 746             backlight_on();
 747         } else {
 748             audio_pause();
 749
 750             if (global_settings.unplug_rw)
 751             {
 752                 if ( audio_current_track()->elapsed >
 753                 (unsigned long)(global_settings.unplug_rw*1000))
 754                     audio_ff_rewind(audio_current_track()->elapsed -
 755                     (global_settings.unplug_rw*1000));
 756                 else
 757                     audio_ff_rewind(0);
 758             }
 759         }
 760     }
 761 }
 762 #endif
 763
 764 long default_event_handler_ex(long event, void (*callback)(void *), void *parameter)
 765 {
 766     switch(event)
 767     {
 768         case SYS_USB_CONNECTED:
 769             if (callback != NULL)
 770                 callback(parameter);
 771 #ifdef HAVE_MMC
 772             if (!mmc_touched() || (mmc_remove_request() == SYS_MMC_EXTRACTED))
 773 #endif
 774             {
 775                 scrobbler_flush_cache();
 776                 system_flush();
 777 #ifdef BOOTFILE
 778 #ifndef USB_IPODSTYLE
 779                 check_bootfile(false); /* gets initial size */
 780 #endif
 781 #endif
 782                 usb_screen();
 783 #ifdef BOOTFILE
 784 #ifndef USB_IPODSTYLE
 785                 check_bootfile(true);
 786 #endif
 787 #endif
 788                 system_restore();
 789             }
 790             return SYS_USB_CONNECTED;
 791         case SYS_POWEROFF:
 792             if (!clean_shutdown(callback, parameter))
 793                 return SYS_POWEROFF;
 794             break;
 795 #if CONFIG_CHARGING
 796         case SYS_CHARGER_CONNECTED:
 797             car_adapter_mode_processing(true);
 798             return SYS_CHARGER_CONNECTED;
 799
 800         case SYS_CHARGER_DISCONNECTED:
 801             car_adapter_mode_processing(false);
 802             return SYS_CHARGER_DISCONNECTED;
 803 #endif
 804 #ifdef HAVE_HEADPHONE_DETECTION
 805         case SYS_PHONE_PLUGGED:
 806             unplug_change(true);
 807             return SYS_PHONE_PLUGGED;
 808
 809         case SYS_PHONE_UNPLUGGED:
 810             unplug_change(false);
 811             return SYS_PHONE_UNPLUGGED;
 812 #endif
 813     }
 814     return 0;
 815 }
 816
 817 long default_event_handler(long event)
 818 {
 819     return default_event_handler_ex(event, NULL, NULL);
 820 }
 821
 822 int show_logo( void )
 823 {
 824 #ifdef HAVE_LCD_BITMAP
 825     char version[32];
 826     int font_h, font_w;
 827
 828     lcd_clear_display();
 829     lcd_bitmap(rockboxlogo, 0, 10, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
 830
 831 #ifdef HAVE_REMOTE_LCD
 832     lcd_remote_clear_display();
 833     lcd_remote_bitmap(remote_rockboxlogo, 0, 10, BMPWIDTH_remote_rockboxlogo,
 834                       BMPHEIGHT_remote_rockboxlogo);
 835 #endif
 836
 837     snprintf(version, sizeof(version), "Ver. %s", appsversion);
 838     lcd_setfont(FONT_SYSFIXED);
 839     lcd_getstringsize((unsigned char *)"A", &font_w, &font_h);
 840     lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2),
 841                LCD_HEIGHT-font_h, (unsigned char *)version);
 842     lcd_update();
 843
 844 #ifdef HAVE_REMOTE_LCD
 845     lcd_remote_setfont(FONT_SYSFIXED);
 846     lcd_remote_getstringsize((unsigned char *)"A", &font_w, &font_h);
 847     lcd_remote_putsxy((LCD_REMOTE_WIDTH/2) - ((strlen(version)*font_w)/2),
 848                LCD_REMOTE_HEIGHT-font_h, (unsigned char *)version);
 849     lcd_remote_update();
 850 #endif
 851
 852 #else
 853     char *rockbox = "  ROCKbox!";
 854     lcd_clear_display();
 855     lcd_double_height(true);
 856     lcd_puts(0, 0, rockbox);
 857     lcd_puts_scroll(0, 1, appsversion);
 858 #endif
 859
 860     return 0;
 861 }
 862
 863 #if CONFIG_CODEC == SWCODEC
 864 int get_replaygain_mode(bool have_track_gain, bool have_album_gain)
 865 {
 866     int type;
 867
 868     bool track = ((global_settings.replaygain_type == REPLAYGAIN_TRACK)
 869         || ((global_settings.replaygain_type == REPLAYGAIN_SHUFFLE)
 870             && global_settings.playlist_shuffle));
 871
 872     type = (!track && have_album_gain) ? REPLAYGAIN_ALBUM
 873         : have_track_gain ? REPLAYGAIN_TRACK : -1;
 874
 875     return type;
 876 }
 877 #endif
 878
 879 #ifdef BOOTFILE
 880 #ifndef USB_IPODSTYLE
 881 /*
 882     memorize/compare details about the BOOTFILE
 883     we don't use dircache because it may not be up to date after
 884     USB disconnect (scanning in the background)
 885 */
 886 void check_bootfile(bool do_rolo)
 887 {
 888     static int wrtdate = 0;
 889     static int wrttime = 0;
 890     DIR* dir = NULL;
 891     struct dirent* entry = NULL;
 892
 893     /* 1. open BOOTDIR and find the BOOTFILE dir entry */
 894     dir = opendir(BOOTDIR);
 895
 896     if(!dir) return; /* do we want an error splash? */
 897
 898     /* loop all files in BOOTDIR */
 899     while(0 != (entry = readdir(dir)))
 900     {
 901         if(!strcasecmp(entry->d_name, BOOTFILE))
 902         {
 903             /* found the bootfile */
 904             if(wrtdate && do_rolo)
 905             {
 906                 if((entry->wrtdate != wrtdate) ||
 907                    (entry->wrttime != wrttime))
 908                 {
 909                     char *lines[] = { str(LANG_BOOT_CHANGED),
 910                                       str(LANG_REBOOT_NOW) };
 911                     struct text_message message={ lines, 2 };
 912                     button_clear_queue(); /* Empty the keyboard buffer */
 913                     if(gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES)
 914                     rolo_load(BOOTDIR "/" BOOTFILE);
 915                 }
 916             }
 917             wrtdate = entry->wrtdate;
 918             wrttime = entry->wrttime;
 919         }
 920     }
 921     closedir(dir);
 922 }
 923 #endif
 924 #endif