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 "config.h"
  24 #include "misc.h"
  25 #include "lcd.h"
  26 #include "file.h"
  27 #ifdef __PCTOOL__
  28 #include <stdint.h>
  29 #include <stdarg.h>
  30 #include <stdio.h>
  31 #ifdef WPSEDITOR
  32 #include "string.h"
  33 #endif
  34 #else
  35 #include "sprintf.h"
  36 #include "appevents.h"
  37 #include "lang.h"
  38 #include "string.h"
  39 #include "dir.h"
  40 #include "lcd-remote.h"
  41 #include "errno.h"
  42 #include "system.h"
  43 #include "timefuncs.h"
  44 #include "screens.h"
  45 #include "talk.h"
  46 #include "mpeg.h"
  47 #include "audio.h"
  48 #include "mp3_playback.h"
  49 #include "settings.h"
  50 #include "storage.h"
  51 #include "ata_idle_notify.h"
  52 #include "kernel.h"
  53 #include "power.h"
  54 #include "powermgmt.h"
  55 #include "backlight.h"
  56 #include "version.h"
  57 #include "font.h"
  58 #include "splash.h"
  59 #include "tagcache.h"
  60 #include "scrobbler.h"
  61 #include "sound.h"
  62 #include "playlist.h"
  63 #include "yesno.h"
  64 #include "viewport.h"
  65
  66 #ifdef IPOD_ACCESSORY_PROTOCOL
  67 #include "iap.h"
  68 #endif
  69
  70 #if (CONFIG_STORAGE & STORAGE_MMC)
  71 #include "ata_mmc.h"
  72 #endif
  73 #include "tree.h"
  74 #include "eeprom_settings.h"
  75 #if defined(HAVE_RECORDING) && !defined(__PCTOOL__)
  76 #include "recording.h"
  77 #endif
  78 #if defined(HAVE_LCD_BITMAP) && !defined(__PCTOOL__)
  79 #include "bmp.h"
  80 #include "icons.h"
  81 #endif /* End HAVE_LCD_BITMAP */
  82 #include "gui/gwps-common.h"
  83 #include "bookmark.h"
  84
  85 #include "playback.h"
  86
  87 #ifdef BOOTFILE
  88 #if !defined(USB_NONE) && !defined(USB_IPODSTYLE)
  89 #include "rolo.h"
  90 #include "yesno.h"
  91 #endif
  92 #endif
  93
  94 /* Format a large-range value for output, using the appropriate unit so that
  95  * the displayed value is in the range 1 <= display < 1000 (1024 for "binary"
  96  * units) if possible, and 3 significant digits are shown. If a buffer is
  97  * given, the result is snprintf()'d into that buffer, otherwise the result is
  98  * voiced.*/
  99 char *output_dyn_value(char *buf, int buf_size, int value,
 100                        const unsigned char **units, bool bin_scale)
 101 {
 102     int scale = bin_scale ? 1024 : 1000;
 103     int fraction = 0;
 104     int unit_no = 0;
 105     char tbuf[5];
 106
 107     while (value >= scale)
 108     {
 109         fraction = value % scale;
 110         value /= scale;
 111         unit_no++;
 112     }
 113     if (bin_scale)
 114         fraction = fraction * 1000 / 1024;
 115
 116     if (value >= 100 || !unit_no)
 117         tbuf[0] = '\0';
 118     else if (value >= 10)
 119         snprintf(tbuf, sizeof(tbuf), "%01d", fraction / 100);
 120     else
 121         snprintf(tbuf, sizeof(tbuf), "%02d", fraction / 10);
 122
 123     if (buf)
 124     {
 125         if (strlen(tbuf))
 126             snprintf(buf, buf_size, "%d%s%s%s", value, str(LANG_POINT),
 127                      tbuf, P2STR(units[unit_no]));
 128         else
 129             snprintf(buf, buf_size, "%d%s", value, P2STR(units[unit_no]));
 130     }
 131     else
 132     {
 133         talk_fractional(tbuf, value, P2ID(units[unit_no]));
 134     }
 135     return buf;
 136 }
 137
 138 /* Create a filename with a number part in a way that the number is 1
 139  * higher than the highest numbered file matching the same pattern.
 140  * It is allowed that buffer and path point to the same memory location,
 141  * saving a strcpy(). Path must always be given without trailing slash.
 142  * "num" can point to an int specifying the number to use or NULL or a value
 143  * less than zero to number automatically. The final number used will also
 144  * be returned in *num. If *num is >= 0 then *num will be incremented by
 145  * one. */
 146 char *create_numbered_filename(char *buffer, const char *path,
 147                                const char *prefix, const char *suffix,
 148                                int numberlen IF_CNFN_NUM_(, int *num))
 149 {
 150     DIR *dir;
 151     struct dirent *entry;
 152     int max_num;
 153     int pathlen;
 154     int prefixlen = strlen(prefix);
 155     char fmtstring[12];
 156
 157     if (buffer != path)
 158         strncpy(buffer, path, MAX_PATH);
 159
 160     pathlen = strlen(buffer);
 161
 162 #ifdef IF_CNFN_NUM
 163     if (num && *num >= 0)
 164     {
 165         /* number specified */
 166         max_num = *num;
 167     }
 168     else
 169 #endif
 170     {
 171         /* automatic numbering */
 172         max_num = 0;
 173
 174     dir = opendir(pathlen ? buffer : "/");
 175     if (!dir)
 176         return NULL;
 177
 178     while ((entry = readdir(dir)))
 179     {
 180         int curr_num;
 181
 182         if (strncasecmp((char *)entry->d_name, prefix, prefixlen)
 183             || strcasecmp((char *)entry->d_name + prefixlen + numberlen, suffix))
 184             continue;
 185
 186         curr_num = atoi((char *)entry->d_name + prefixlen);
 187         if (curr_num > max_num)
 188             max_num = curr_num;
 189     }
 190
 191     closedir(dir);
 192     }
 193
 194     max_num++;
 195
 196     snprintf(fmtstring, sizeof(fmtstring), "/%%s%%0%dd%%s", numberlen);
 197     snprintf(buffer + pathlen, MAX_PATH - pathlen, fmtstring, prefix,
 198              max_num, suffix);
 199
 200 #ifdef IF_CNFN_NUM
 201     if (num)
 202         *num = max_num;
 203 #endif
 204
 205     return buffer;
 206 }
 207
 208
 209 #if CONFIG_RTC
 210 /* Create a filename with a date+time part.
 211    It is allowed that buffer and path point to the same memory location,
 212    saving a strcpy(). Path must always be given without trailing slash.
 213    unique_time as true makes the function wait until the current time has
 214    changed. */
 215 char *create_datetime_filename(char *buffer, const char *path,
 216                                const char *prefix, const char *suffix,
 217                                bool unique_time)
 218 {
 219     struct tm *tm = get_time();
 220     static struct tm last_tm;
 221     int pathlen;
 222
 223     while (unique_time && !memcmp(get_time(), &last_tm, sizeof (struct tm)))
 224         sleep(HZ/10);
 225
 226     last_tm = *tm;
 227
 228     if (buffer != path)
 229         strncpy(buffer, path, MAX_PATH);
 230
 231     pathlen = strlen(buffer);
 232     snprintf(buffer + pathlen, MAX_PATH - pathlen,
 233              "/%s%02d%02d%02d-%02d%02d%02d%s", prefix,
 234              tm->tm_year % 100, tm->tm_mon + 1, tm->tm_mday,
 235              tm->tm_hour, tm->tm_min, tm->tm_sec, suffix);
 236
 237     return buffer;
 238 }
 239 #endif /* CONFIG_RTC */
 240
 241 /* Ask the user if they really want to erase the current dynamic playlist
 242  * returns true if the playlist should be replaced */
 243 bool warn_on_pl_erase(void)
 244 {
 245     if (global_settings.warnon_erase_dynplaylist &&
 246         !global_settings.party_mode &&
 247         playlist_modified(NULL))
 248     {
 249         static const char *lines[] =
 250             {ID2P(LANG_WARN_ERASEDYNPLAYLIST_PROMPT)};
 251         static const struct text_message message={lines, 1};
 252
 253         return (gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES);
 254     }
 255     else
 256         return true;
 257 }
 258
 259 /* Read (up to) a line of text from fd into buffer and return number of bytes
 260  * read (which may be larger than the number of bytes stored in buffer). If
 261  * an error occurs, -1 is returned (and buffer contains whatever could be
 262  * read). A line is terminated by a LF char. Neither LF nor CR chars are
 263  * stored in buffer.
 264  */
 265 int read_line(int fd, char* buffer, int buffer_size)
 266 {
 267     int count = 0;
 268     int num_read = 0;
 269
 270     errno = 0;
 271
 272     while (count < buffer_size)
 273     {
 274         unsigned char c;
 275
 276         if (1 != read(fd, &c, 1))
 277             break;
 278
 279         num_read++;
 280
 281         if ( c == '\n' )
 282             break;
 283
 284         if ( c == '\r' )
 285             continue;
 286
 287         buffer[count++] = c;
 288     }
 289
 290     buffer[MIN(count, buffer_size - 1)] = 0;
 291
 292     return errno ? -1 : num_read;
 293 }
 294
 295 /* Performance optimized version of the previous function. */
 296 int fast_readline(int fd, char *buf, int buf_size, void *parameters,
 297                   int (*callback)(int n, const char *buf, void *parameters))
 298 {
 299     char *p, *next;
 300     int rc, pos = 0;
 301     int count = 0;
 302
 303     while ( 1 )
 304     {
 305         next = NULL;
 306
 307         rc = read(fd, &buf[pos], buf_size - pos - 1);
 308         if (rc >= 0)
 309             buf[pos+rc] = '\0';
 310
 311         if ( (p = strchr(buf, '\r')) != NULL)
 312         {
 313             *p = '\0';
 314             next = ++p;
 315         }
 316         else
 317             p = buf;
 318
 319         if ( (p = strchr(p, '\n')) != NULL)
 320         {
 321             *p = '\0';
 322             next = ++p;
 323         }
 324
 325         rc = callback(count, buf, parameters);
 326         if (rc < 0)
 327             return rc;
 328
 329         count++;
 330         if (next)
 331         {
 332             pos = buf_size - ((long)next - (long)buf) - 1;
 333             memmove(buf, next, pos);
 334         }
 335         else
 336             break ;
 337     }
 338
 339     return 0;
 340 }
 341
 342 #ifdef HAVE_LCD_BITMAP
 343
 344 #if LCD_DEPTH == 16
 345 #define BMP_COMPRESSION 3 /* BI_BITFIELDS */
 346 #define BMP_NUMCOLORS 3
 347 #else
 348 #define BMP_COMPRESSION 0 /* BI_RGB */
 349 #if LCD_DEPTH <= 8
 350 #define BMP_NUMCOLORS (1 << LCD_DEPTH)
 351 #else
 352 #define BMP_NUMCOLORS 0
 353 #endif
 354 #endif
 355
 356 #if LCD_DEPTH == 1
 357 #define BMP_BPP 1
 358 #define BMP_LINESIZE ((LCD_WIDTH/8 + 3) & ~3)
 359 #elif LCD_DEPTH <= 4
 360 #define BMP_BPP 4
 361 #define BMP_LINESIZE ((LCD_WIDTH/2 + 3) & ~3)
 362 #elif LCD_DEPTH <= 8
 363 #define BMP_BPP 8
 364 #define BMP_LINESIZE ((LCD_WIDTH + 3) & ~3)
 365 #elif LCD_DEPTH <= 16
 366 #define BMP_BPP 16
 367 #define BMP_LINESIZE ((LCD_WIDTH*2 + 3) & ~3)
 368 #else
 369 #define BMP_BPP 24
 370 #define BMP_LINESIZE ((LCD_WIDTH*3 + 3) & ~3)
 371 #endif
 372
 373 #define BMP_HEADERSIZE (54 + 4 * BMP_NUMCOLORS)
 374 #define BMP_DATASIZE   (BMP_LINESIZE * LCD_HEIGHT)
 375 #define BMP_TOTALSIZE  (BMP_HEADERSIZE + BMP_DATASIZE)
 376
 377 #define LE16_CONST(x) (x)&0xff, ((x)>>8)&0xff
 378 #define LE32_CONST(x) (x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff
 379
 380 static const unsigned char bmpheader[] =
 381 {
 382     0x42, 0x4d,                 /* 'BM' */
 383     LE32_CONST(BMP_TOTALSIZE),  /* Total file size */
 384     0x00, 0x00, 0x00, 0x00,     /* Reserved */
 385     LE32_CONST(BMP_HEADERSIZE), /* Offset to start of pixel data */
 386
 387     0x28, 0x00, 0x00, 0x00,     /* Size of (2nd) header */
 388     LE32_CONST(LCD_WIDTH),      /* Width in pixels */
 389     LE32_CONST(LCD_HEIGHT),     /* Height in pixels */
 390     0x01, 0x00,                 /* Number of planes (always 1) */
 391     LE16_CONST(BMP_BPP),        /* Bits per pixel 1/4/8/16/24 */
 392     LE32_CONST(BMP_COMPRESSION),/* Compression mode */
 393     LE32_CONST(BMP_DATASIZE),   /* Size of bitmap data */
 394     0xc4, 0x0e, 0x00, 0x00,     /* Horizontal resolution (pixels/meter) */
 395     0xc4, 0x0e, 0x00, 0x00,     /* Vertical resolution (pixels/meter) */
 396     LE32_CONST(BMP_NUMCOLORS),  /* Number of used colours */
 397     LE32_CONST(BMP_NUMCOLORS),  /* Number of important colours */
 398
 399 #if LCD_DEPTH == 1
 400 #ifdef MROBE_100
 401     2, 2, 94,  0x00,            /* Colour #0 */
 402     3, 6, 241, 0x00             /* Colour #1 */
 403 #else
 404     0x90, 0xee, 0x90, 0x00,     /* Colour #0 */
 405     0x00, 0x00, 0x00, 0x00      /* Colour #1 */
 406 #endif
 407 #elif LCD_DEPTH == 2
 408     0xe6, 0xd8, 0xad, 0x00,     /* Colour #0 */
 409     0x99, 0x90, 0x73, 0x00,     /* Colour #1 */
 410     0x4c, 0x48, 0x39, 0x00,     /* Colour #2 */
 411     0x00, 0x00, 0x00, 0x00      /* Colour #3 */
 412 #elif LCD_DEPTH == 16
 413     0x00, 0xf8, 0x00, 0x00,     /* red bitfield mask */
 414     0xe0, 0x07, 0x00, 0x00,     /* green bitfield mask */
 415     0x1f, 0x00, 0x00, 0x00      /* blue bitfield mask */
 416 #endif
 417 };
 418
 419 static void (*screen_dump_hook)(int fh) = NULL;
 420
 421 void screen_dump(void)
 422 {
 423     int fh;
 424     char filename[MAX_PATH];
 425     int bx, by;
 426 #if LCD_DEPTH == 1
 427     static unsigned char line_block[8][BMP_LINESIZE];
 428 #elif LCD_DEPTH == 2
 429 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING
 430     static unsigned char line_block[BMP_LINESIZE];
 431 #elif LCD_PIXELFORMAT == VERTICAL_PACKING
 432     static unsigned char line_block[4][BMP_LINESIZE];
 433 #elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
 434     static unsigned char line_block[8][BMP_LINESIZE];
 435 #endif
 436 #elif LCD_DEPTH == 16
 437     static unsigned short line_block[BMP_LINESIZE/2];
 438 #endif
 439
 440 #if CONFIG_RTC
 441     create_datetime_filename(filename, "", "dump ", ".bmp", false);
 442 #else
 443     create_numbered_filename(filename, "", "dump_", ".bmp", 4
 444                              IF_CNFN_NUM_(, NULL));
 445 #endif
 446
 447     fh = creat(filename);
 448     if (fh < 0)
 449         return;
 450
 451     if (screen_dump_hook)
 452     {
 453         screen_dump_hook(fh);
 454     }
 455     else
 456     {
 457         write(fh, bmpheader, sizeof(bmpheader));
 458
 459         /* BMP image goes bottom up */
 460 #if LCD_DEPTH == 1
 461         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 462         {
 463             unsigned char *src = &lcd_framebuffer[by][0];
 464             unsigned char *dst = &line_block[0][0];
 465
 466             memset(line_block, 0, sizeof(line_block));
 467             for (bx = LCD_WIDTH/8; bx > 0; bx--)
 468             {
 469                 unsigned dst_mask = 0x80;
 470                 int ix;
 471
 472                 for (ix = 8; ix > 0; ix--)
 473                 {
 474                     unsigned char *dst_blk = dst;
 475                     unsigned src_byte = *src++;
 476                     int iy;
 477
 478                     for (iy = 8; iy > 0; iy--)
 479                     {
 480                         if (src_byte & 0x80)
 481                             *dst_blk |= dst_mask;
 482                         src_byte <<= 1;
 483                         dst_blk += BMP_LINESIZE;
 484                     }
 485                     dst_mask >>= 1;
 486                 }
 487                 dst++;
 488             }
 489
 490             write(fh, line_block, sizeof(line_block));
 491         }
 492 #elif LCD_DEPTH == 2
 493 #if LCD_PIXELFORMAT == HORIZONTAL_PACKING
 494         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 495         {
 496             unsigned char *src = &lcd_framebuffer[by][0];
 497             unsigned char *dst = line_block;
 498
 499             memset(line_block, 0, sizeof(line_block));
 500             for (bx = LCD_FBWIDTH; bx > 0; bx--)
 501             {
 502                 unsigned src_byte = *src++;
 503
 504                 *dst++ = ((src_byte >> 2) & 0x30) | ((src_byte >> 4) & 0x03);
 505                 *dst++ = ((src_byte << 2) & 0x30) | (src_byte & 0x03);
 506             }
 507
 508             write(fh, line_block, sizeof(line_block));
 509         }
 510 #elif LCD_PIXELFORMAT == VERTICAL_PACKING
 511         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 512         {
 513             unsigned char *src = &lcd_framebuffer[by][0];
 514             unsigned char *dst = &line_block[3][0];
 515
 516             memset(line_block, 0, sizeof(line_block));
 517             for (bx = LCD_WIDTH/2; bx > 0; bx--)
 518             {
 519                 unsigned char *dst_blk = dst++;
 520                 unsigned src_byte0 = *src++ << 4;
 521                 unsigned src_byte1 = *src++;
 522                 int iy;
 523
 524                 for (iy = 4; iy > 0; iy--)
 525                 {
 526                     *dst_blk = (src_byte0 & 0x30) | (src_byte1 & 0x03);
 527                     src_byte0 >>= 2;
 528                     src_byte1 >>= 2;
 529                     dst_blk -= BMP_LINESIZE;
 530                 }
 531             }
 532
 533             write(fh, line_block, sizeof(line_block));
 534         }
 535 #elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
 536         for (by = LCD_FBHEIGHT - 1; by >= 0; by--)
 537         {
 538             const fb_data *src = &lcd_framebuffer[by][0];
 539             unsigned char *dst = &line_block[7][0];
 540
 541             memset(line_block, 0, sizeof(line_block));
 542             for (bx = LCD_WIDTH/2; bx > 0; bx--)
 543             {
 544                 unsigned char *dst_blk = dst++;
 545                 unsigned src_data0 = *src++ << 4;
 546                 unsigned src_data1 = *src++;
 547                 int iy;
 548
 549                 for (iy = 8; iy > 0; iy--)
 550                 {
 551                     *dst_blk = (src_data0 & 0x10) | (src_data1 & 0x01)
 552                              | ((src_data0 & 0x1000) | (src_data1 & 0x0100)) >> 7;
 553                     src_data0 >>= 1;
 554                     src_data1 >>= 1;
 555                     dst_blk -= BMP_LINESIZE;
 556                 }
 557             }
 558
 559             write(fh, line_block, sizeof(line_block));
 560         }
 561 #endif
 562 #elif LCD_DEPTH == 16
 563         for (by = LCD_HEIGHT - 1; by >= 0; by--)
 564         {
 565             unsigned short *src = &lcd_framebuffer[by][0];
 566             unsigned short *dst = line_block;
 567
 568             memset(line_block, 0, sizeof(line_block));
 569             for (bx = LCD_WIDTH; bx > 0; bx--)
 570             {
 571 #if (LCD_PIXELFORMAT == RGB565SWAPPED)
 572                 /* iPod LCD data is big endian although the CPU is not */
 573                 *dst++ = htobe16(*src++);
 574 #else
 575                 *dst++ = htole16(*src++);
 576 #endif
 577             }
 578
 579             write(fh, line_block, sizeof(line_block));
 580         }
 581 #endif /* LCD_DEPTH */
 582     }
 583
 584     close(fh);
 585 }
 586
 587 void screen_dump_set_hook(void (*hook)(int fh))
 588 {
 589     screen_dump_hook = hook;
 590 }
 591
 592 #endif /* HAVE_LCD_BITMAP */
 593
 594 /* parse a line from a configuration file. the line format is:
 595
 596    name: value
 597
 598    Any whitespace before setting name or value (after ':') is ignored.
 599    A # as first non-whitespace character discards the whole line.
 600    Function sets pointers to null-terminated setting name and value.
 601    Returns false if no valid config entry was found.
 602 */
 603
 604 bool settings_parseline(char* line, char** name, char** value)
 605 {
 606     char* ptr;
 607
 608     while ( isspace(*line) )
 609         line++;
 610
 611     if ( *line == '#' )
 612         return false;
 613
 614     ptr = strchr(line, ':');
 615     if ( !ptr )
 616         return false;
 617
 618     *name = line;
 619     *ptr = 0;
 620     ptr++;
 621     while (isspace(*ptr))
 622         ptr++;
 623     *value = ptr;
 624     return true;
 625 }
 626
 627 static void system_flush(void)
 628 {
 629     scrobbler_shutdown();
 630     playlist_shutdown();
 631     tree_flush();
 632     call_storage_idle_notifys(true); /*doesnt work on usb and shutdown from ata thread */
 633 }
 634
 635 static void system_restore(void)
 636 {
 637     tree_restore();
 638     scrobbler_init();
 639 }
 640
 641 static bool clean_shutdown(void (*callback)(void *), void *parameter)
 642 {
 643 #ifdef SIMULATOR
 644     (void)callback;
 645     (void)parameter;
 646     bookmark_autobookmark();
 647     call_storage_idle_notifys(true);
 648     exit(0);
 649 #else
 650     long msg_id = -1;
 651     int i;
 652
 653     scrobbler_poweroff();
 654
 655 #if CONFIG_CHARGING && !defined(HAVE_POWEROFF_WHILE_CHARGING)
 656     if(!charger_inserted())
 657 #endif
 658     {
 659         bool batt_safe = battery_level_safe();
 660         int audio_stat = audio_status();
 661
 662         FOR_NB_SCREENS(i)
 663             screens[i].clear_display();
 664
 665         if (batt_safe)
 666         {
 667 #ifdef HAVE_TAGCACHE
 668             if (!tagcache_prepare_shutdown())
 669             {
 670                 cancel_shutdown();
 671                 splash(HZ, ID2P(LANG_TAGCACHE_BUSY));
 672                 return false;
 673             }
 674 #endif
 675             if (battery_level() > 10)
 676                 splash(0, str(LANG_SHUTTINGDOWN));
 677             else
 678             {
 679                 msg_id = LANG_WARNING_BATTERY_LOW;
 680                 splashf(0, "%s %s", str(LANG_WARNING_BATTERY_LOW),
 681                                     str(LANG_SHUTTINGDOWN));
 682             }
 683         }
 684         else
 685         {
 686             msg_id = LANG_WARNING_BATTERY_EMPTY;
 687             splashf(0, "%s %s", str(LANG_WARNING_BATTERY_EMPTY),
 688                                 str(LANG_SHUTTINGDOWN));
 689         }
 690
 691         if (global_settings.fade_on_stop
 692             && (audio_stat & AUDIO_STATUS_PLAY))
 693         {
 694             fade(false, false);
 695         }
 696
 697         if (batt_safe) /* do not save on critical battery */
 698         {
 699 #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC
 700             if (audio_stat & AUDIO_STATUS_RECORD)
 701             {
 702                 rec_command(RECORDING_CMD_STOP);
 703                 /* wait for stop to complete */
 704                 while (audio_status() & AUDIO_STATUS_RECORD)
 705                     sleep(1);
 706             }
 707 #endif
 708             bookmark_autobookmark();
 709
 710             /* audio_stop_recording == audio_stop for HWCODEC */
 711             audio_stop();
 712
 713             if (callback != NULL)
 714                 callback(parameter);
 715
 716 #if CONFIG_CODEC != SWCODEC
 717             /* wait for audio_stop or audio_stop_recording to complete */
 718             while (audio_status())
 719                 sleep(1);
 720 #endif
 721
 722 #if defined(HAVE_RECORDING) && CONFIG_CODEC == SWCODEC
 723             audio_close_recording();
 724 #endif
 725
 726             if(global_settings.talk_menu)
 727             {
 728                 bool enqueue = false;
 729                 if(msg_id != -1)
 730                 {
 731                     talk_id(msg_id, enqueue);
 732                     enqueue = true;
 733                 }
 734                 talk_id(LANG_SHUTTINGDOWN, enqueue);
 735 #if CONFIG_CODEC == SWCODEC
 736                 voice_wait();
 737 #endif
 738             }
 739
 740             system_flush();
 741 #ifdef HAVE_EEPROM_SETTINGS
 742             if (firmware_settings.initialized)
 743             {
 744                 firmware_settings.disk_clean = true;
 745                 firmware_settings.bl_version = 0;
 746                 eeprom_settings_store();
 747             }
 748 #endif
 749         }
 750 #ifdef HAVE_DIRCACHE
 751         else
 752             dircache_disable();
 753 #endif
 754
 755         shutdown_hw();
 756     }
 757 #endif
 758     return false;
 759 }
 760
 761 bool list_stop_handler(void)
 762 {
 763     bool ret = false;
 764
 765     /* Stop the music if it is playing */
 766     if(audio_status())
 767     {
 768         if (!global_settings.party_mode)
 769         {
 770             if (global_settings.fade_on_stop)
 771                 fade(false, false);
 772             bookmark_autobookmark();
 773             audio_stop();
 774             ret = true;  /* bookmarking can make a refresh necessary */
 775         }
 776     }
 777 #if CONFIG_CHARGING
 778 #if (CONFIG_KEYPAD == RECORDER_PAD) && !defined(HAVE_SW_POWEROFF)
 779     else
 780     {
 781         if (charger_inserted())
 782             charging_splash();
 783         else
 784             shutdown_screen(); /* won't return if shutdown actually happens */
 785
 786         ret = true;  /* screen is dirty, caller needs to refresh */
 787     }
 788 #endif
 789 #ifndef HAVE_POWEROFF_WHILE_CHARGING
 790     {
 791         static long last_off = 0;
 792
 793         if (TIME_BEFORE(current_tick, last_off + HZ/2))
 794         {
 795             if (charger_inserted())
 796             {
 797                 charging_splash();
 798                 ret = true;  /* screen is dirty, caller needs to refresh */
 799             }
 800         }
 801         last_off = current_tick;
 802     }
 803 #endif
 804 #endif /* CONFIG_CHARGING */
 805     return ret;
 806 }
 807
 808 #if CONFIG_CHARGING
 809 static bool waiting_to_resume_play = false;
 810 static long play_resume_tick;
 811
 812 static void car_adapter_mode_processing(bool inserted)
 813 {
 814     if (global_settings.car_adapter_mode)
 815     {
 816         if(inserted)
 817         {
 818             /*
 819              * Just got plugged in, delay & resume if we were playing
 820              */
 821             if (audio_status() & AUDIO_STATUS_PAUSE)
 822             {
 823                 /* delay resume a bit while the engine is cranking */
 824                 play_resume_tick = current_tick + HZ*5;
 825                 waiting_to_resume_play = true;
 826             }
 827         }
 828         else
 829         {
 830             /*
 831              * Just got unplugged, pause if playing
 832              */
 833             if ((audio_status() & AUDIO_STATUS_PLAY) &&
 834                 !(audio_status() & AUDIO_STATUS_PAUSE))
 835             {
 836                 if (global_settings.fade_on_stop)
 837                     fade(false, false);
 838                 else
 839                     audio_pause();
 840             }
 841             waiting_to_resume_play = false;
 842         }
 843     }
 844 }
 845
 846 static void car_adapter_tick(void)
 847 {
 848     if (waiting_to_resume_play)
 849     {
 850         if (TIME_AFTER(current_tick, play_resume_tick))
 851         {
 852             if (audio_status() & AUDIO_STATUS_PAUSE)
 853             {
 854                 queue_broadcast(SYS_CAR_ADAPTER_RESUME, 0);
 855             }
 856             waiting_to_resume_play = false;
 857         }
 858     }
 859 }
 860
 861 void car_adapter_mode_init(void)
 862 {
 863     tick_add_task(car_adapter_tick);
 864 }
 865 #endif
 866
 867 #ifdef HAVE_HEADPHONE_DETECTION
 868 static void unplug_change(bool inserted)
 869 {
 870     static bool headphone_caused_pause = false;
 871
 872     if (global_settings.unplug_mode)
 873     {
 874         int audio_stat = audio_status();
 875         if (inserted)
 876         {
 877             if ((audio_stat & AUDIO_STATUS_PLAY) &&
 878                     headphone_caused_pause &&
 879                     global_settings.unplug_mode > 1 )
 880                 audio_resume();
 881             backlight_on();
 882             headphone_caused_pause = false;
 883         } else {
 884             if ((audio_stat & AUDIO_STATUS_PLAY) &&
 885                     !(audio_stat & AUDIO_STATUS_PAUSE))
 886             {
 887                 headphone_caused_pause = true;
 888                 audio_pause();
 889
 890                 if (global_settings.unplug_rw)
 891                 {
 892                     if (audio_current_track()->elapsed >
 893                             (unsigned long)(global_settings.unplug_rw*1000))
 894                         audio_ff_rewind(audio_current_track()->elapsed -
 895                                 (global_settings.unplug_rw*1000));
 896                     else
 897                         audio_ff_rewind(0);
 898                 }
 899             }
 900         }
 901     }
 902 }
 903 #endif
 904
 905 long default_event_handler_ex(long event, void (*callback)(void *), void *parameter)
 906 {
 907     switch(event)
 908     {
 909         case SYS_BATTERY_UPDATE:
 910             if(global_settings.talk_battery_level)
 911             {
 912                 talk_ids(true, VOICE_PAUSE, VOICE_PAUSE,
 913                          LANG_BATTERY_TIME,
 914                          TALK_ID(battery_level(), UNIT_PERCENT),
 915                          VOICE_PAUSE);
 916                 talk_force_enqueue_next();
 917             }
 918             break;
 919         case SYS_USB_CONNECTED:
 920             if (callback != NULL)
 921                 callback(parameter);
 922 #if (CONFIG_STORAGE & STORAGE_MMC)
 923             if (!mmc_touched() ||
 924                 (mmc_remove_request() == SYS_HOTSWAP_EXTRACTED))
 925 #endif
 926             {
 927                 system_flush();
 928 #ifdef BOOTFILE
 929 #if !defined(USB_NONE) && !defined(USB_IPODSTYLE)
 930                 check_bootfile(false); /* gets initial size */
 931 #endif
 932 #endif
 933                 usb_screen();
 934 #ifdef BOOTFILE
 935 #if !defined(USB_NONE) && !defined(USB_IPODSTYLE)
 936                 check_bootfile(true);
 937 #endif
 938 #endif
 939                 system_restore();
 940             }
 941             return SYS_USB_CONNECTED;
 942         case SYS_POWEROFF:
 943             if (!clean_shutdown(callback, parameter))
 944                 return SYS_POWEROFF;
 945             break;
 946 #if CONFIG_CHARGING
 947         case SYS_CHARGER_CONNECTED:
 948             car_adapter_mode_processing(true);
 949             return SYS_CHARGER_CONNECTED;
 950
 951         case SYS_CHARGER_DISCONNECTED:
 952             car_adapter_mode_processing(false);
 953             return SYS_CHARGER_DISCONNECTED;
 954
 955         case SYS_CAR_ADAPTER_RESUME:
 956             audio_resume();
 957             return SYS_CAR_ADAPTER_RESUME;
 958 #endif
 959 #ifdef HAVE_HEADPHONE_DETECTION
 960         case SYS_PHONE_PLUGGED:
 961             unplug_change(true);
 962             return SYS_PHONE_PLUGGED;
 963
 964         case SYS_PHONE_UNPLUGGED:
 965             unplug_change(false);
 966             return SYS_PHONE_UNPLUGGED;
 967 #endif
 968 #ifdef IPOD_ACCESSORY_PROTOCOL
 969         case SYS_IAP_PERIODIC:
 970             iap_periodic();
 971             return SYS_IAP_PERIODIC;
 972         case SYS_IAP_HANDLEPKT:
 973             iap_handlepkt();
 974             return SYS_IAP_HANDLEPKT;
 975 #endif
 976     }
 977     return 0;
 978 }
 979
 980 long default_event_handler(long event)
 981 {
 982     return default_event_handler_ex(event, NULL, NULL);
 983 }
 984
 985 int show_logo( void )
 986 {
 987 #ifdef HAVE_LCD_BITMAP
 988     char version[32];
 989     int font_h, font_w;
 990
 991     snprintf(version, sizeof(version), "Ver. %s", appsversion);
 992
 993     lcd_clear_display();
 994 #ifdef SANSA_CLIP   /* display the logo in the blue area of the screen */
 995     lcd_setfont(FONT_SYSFIXED);
 996     lcd_getstringsize((unsigned char *)"A", &font_w, &font_h);
 997     lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2),
 998                0, (unsigned char *)version);
 999     lcd_bitmap(rockboxlogo, 0, 16, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
1000 #else
1001     lcd_bitmap(rockboxlogo, 0, 10, BMPWIDTH_rockboxlogo, BMPHEIGHT_rockboxlogo);
1002     lcd_setfont(FONT_SYSFIXED);
1003     lcd_getstringsize((unsigned char *)"A", &font_w, &font_h);
1004     lcd_putsxy((LCD_WIDTH/2) - ((strlen(version)*font_w)/2),
1005                LCD_HEIGHT-font_h, (unsigned char *)version);
1006 #endif
1007     lcd_setfont(FONT_UI);
1008
1009 #else
1010     char *rockbox = "  ROCKbox!";
1011
1012     lcd_clear_display();
1013     lcd_double_height(true);
1014     lcd_puts(0, 0, rockbox);
1015     lcd_puts_scroll(0, 1, appsversion);
1016 #endif
1017     lcd_update();
1018
1019 #ifdef HAVE_REMOTE_LCD
1020     lcd_remote_clear_display();
1021     lcd_remote_bitmap(remote_rockboxlogo, 0, 10, BMPWIDTH_remote_rockboxlogo,
1022                       BMPHEIGHT_remote_rockboxlogo);
1023     lcd_remote_setfont(FONT_SYSFIXED);
1024     lcd_remote_getstringsize((unsigned char *)"A", &font_w, &font_h);
1025     lcd_remote_putsxy((LCD_REMOTE_WIDTH/2) - ((strlen(version)*font_w)/2),
1026                        LCD_REMOTE_HEIGHT-font_h, (unsigned char *)version);
1027     lcd_remote_setfont(FONT_UI);
1028     lcd_remote_update();
1029 #endif
1030
1031     return 0;
1032 }
1033
1034 #if CONFIG_CODEC == SWCODEC
1035 int get_replaygain_mode(bool have_track_gain, bool have_album_gain)
1036 {
1037     int type;
1038
1039     bool track = ((global_settings.replaygain_type == REPLAYGAIN_TRACK)
1040         || ((global_settings.replaygain_type == REPLAYGAIN_SHUFFLE)
1041             && global_settings.playlist_shuffle));
1042
1043     type = (!track && have_album_gain) ? REPLAYGAIN_ALBUM
1044         : have_track_gain ? REPLAYGAIN_TRACK : -1;
1045
1046     return type;
1047 }
1048 #endif
1049
1050 #ifdef BOOTFILE
1051 #if !defined(USB_NONE) && !defined(USB_IPODSTYLE)
1052 /*
1053     memorize/compare details about the BOOTFILE
1054     we don't use dircache because it may not be up to date after
1055     USB disconnect (scanning in the background)
1056 */
1057 void check_bootfile(bool do_rolo)
1058 {
1059     static unsigned short wrtdate = 0;
1060     static unsigned short wrttime = 0;
1061     DIR* dir = NULL;
1062     struct dirent* entry = NULL;
1063
1064     /* 1. open BOOTDIR and find the BOOTFILE dir entry */
1065     dir = opendir(BOOTDIR);
1066
1067     if(!dir) return; /* do we want an error splash? */
1068
1069     /* loop all files in BOOTDIR */
1070     while(0 != (entry = readdir(dir)))
1071     {
1072         if(!strcasecmp(entry->d_name, BOOTFILE))
1073         {
1074             /* found the bootfile */
1075             if(wrtdate && do_rolo)
1076             {
1077                 if((entry->wrtdate != wrtdate) ||
1078                    (entry->wrttime != wrttime))
1079                 {
1080                     static const char *lines[] = { ID2P(LANG_BOOT_CHANGED),
1081                                                    ID2P(LANG_REBOOT_NOW) };
1082                     static const struct text_message message={ lines, 2 };
1083                     button_clear_queue(); /* Empty the keyboard buffer */
1084                     if(gui_syncyesno_run(&message, NULL, NULL) == YESNO_YES)
1085                     rolo_load(BOOTDIR "/" BOOTFILE);
1086                 }
1087             }
1088             wrtdate = entry->wrtdate;
1089             wrttime = entry->wrttime;
1090         }
1091     }
1092     closedir(dir);
1093 }
1094 #endif
1095 #endif
1096
1097 /* check range, set volume and save settings */
1098 void setvol(void)
1099 {
1100     const int min_vol = sound_min(SOUND_VOLUME);
1101     const int max_vol = sound_max(SOUND_VOLUME);
1102     if (global_settings.volume < min_vol)
1103         global_settings.volume = min_vol;
1104     if (global_settings.volume > max_vol)
1105         global_settings.volume = max_vol;
1106     sound_set_volume(global_settings.volume);
1107     settings_save();
1108 }
1109
1110 char* strrsplt(char* str, int c)
1111 {
1112     char* s = strrchr(str, c);
1113
1114     if (s != NULL)
1115     {
1116         *s++ = '\0';
1117     }
1118     else
1119     {
1120         s = str;
1121     }
1122
1123     return s;
1124 }
1125
1126 /* Test file existence, using dircache of possible */
1127 bool file_exists(const char *file)
1128 {
1129     int fd;
1130
1131     if (!file || strlen(file) <= 0)
1132         return false;
1133
1134 #ifdef HAVE_DIRCACHE
1135     if (dircache_is_enabled())
1136         return (dircache_get_entry_ptr(file) != NULL);
1137 #endif
1138
1139     fd = open(file, O_RDONLY);
1140     if (fd < 0)
1141         return false;
1142     close(fd);
1143     return true;
1144 }
1145
1146 bool dir_exists(const char *path)
1147 {
1148     DIR* d = opendir(path);
1149     if (!d)
1150         return false;
1151     closedir(d);
1152     return true;
1153 }
1154
1155 /*
1156  * removes the extension of filename (if it doesn't start with a .)
1157  * puts the result in buffer
1158  */
1159 char *strip_extension(char* buffer, int buffer_size, const char *filename)
1160 {
1161     char *dot = strrchr(filename, '.');
1162     int len;
1163
1164     if (buffer_size <= 0)
1165     {
1166         return NULL;
1167     }
1168
1169     buffer_size--;  /* Make room for end nil */
1170
1171     if (dot != 0 && filename[0] != '.')
1172     {
1173         len = dot - filename;
1174         len = MIN(len, buffer_size);
1175         strncpy(buffer, filename, len);
1176     }
1177     else
1178     {
1179         len = buffer_size;
1180         strncpy(buffer, filename, buffer_size);
1181     }
1182
1183     buffer[len] = 0;
1184
1185     return buffer;
1186 }
1187 #endif /* !defined(__PCTOOL__) */
1188
1189 /* Format time into buf.
1190  *
1191  * buf      - buffer to format to.
1192  * buf_size - size of buffer.
1193  * t        - time to format, in milliseconds.
1194  */
1195 void format_time(char* buf, int buf_size, long t)
1196 {
1197     if ( t < 3600000 )
1198     {
1199       snprintf(buf, buf_size, "%d:%02d",
1200                (int) (t / 60000), (int) (t % 60000 / 1000));
1201     }
1202     else
1203     {
1204       snprintf(buf, buf_size, "%d:%02d:%02d",
1205                (int) (t / 3600000), (int) (t % 3600000 / 60000),
1206                (int) (t % 60000 / 1000));
1207     }
1208 }
1209
1210
1211 /** Open a UTF-8 file and set file descriptor to first byte after BOM.
1212  *  If no BOM is present this behaves like open().
1213  *  If the file is opened for writing and O_TRUNC is set, write a BOM to
1214  *  the opened file and leave the file pointer set after the BOM.
1215  */
1216 #define BOM "\xef\xbb\xbf"
1217 #define BOM_SIZE 3
1218
1219 int open_utf8(const char* pathname, int flags)
1220 {
1221     int fd;
1222     unsigned char bom[BOM_SIZE];
1223
1224     fd = open(pathname, flags);
1225     if(fd < 0)
1226         return fd;
1227
1228     if(flags & (O_TRUNC | O_WRONLY))
1229     {
1230         write(fd, BOM, BOM_SIZE);
1231     }
1232     else
1233     {
1234         read(fd, bom, BOM_SIZE);
1235         /* check for BOM */
1236         if(memcmp(bom, BOM, BOM_SIZE))
1237             lseek(fd, 0, SEEK_SET);
1238     }
1239     return fd;
1240 }
1241
1242
1243 #ifdef HAVE_LCD_COLOR
1244 /*
1245  * Helper function to convert a string of 6 hex digits to a native colour
1246  */
1247
1248 static int hex2dec(int c)
1249 {
1250    return  (((c) >= '0' && ((c) <= '9')) ? (c) - '0' :
1251                                            (toupper(c)) - 'A' + 10);
1252 }
1253
1254 int hex_to_rgb(const char* hex, int* color)
1255 {
1256     int red, green, blue;
1257     int i = 0;
1258
1259     while ((i < 6) && (isxdigit(hex[i])))
1260         i++;
1261
1262     if (i < 6)
1263         return -1;
1264
1265     red = (hex2dec(hex[0]) << 4) | hex2dec(hex[1]);
1266     green = (hex2dec(hex[2]) << 4) | hex2dec(hex[3]);
1267     blue = (hex2dec(hex[4]) << 4) | hex2dec(hex[5]);
1268
1269     *color = LCD_RGBPACK(red,green,blue);
1270
1271     return 0;
1272 }
1273 #endif /* HAVE_LCD_COLOR */
1274
1275 #ifdef HAVE_LCD_BITMAP
1276 /* A simplified scanf - used (at time of writing) by wps parsing functions.
1277
1278    fmt - char array specifying the format of each list option.  Valid values
1279          are:  d - int
1280                s - string (sets pointer to string, without copying)
1281                c - hex colour (RGB888 - e.g. ff00ff)
1282                g - greyscale "colour" (0-3)
1283    set_vals - if not NULL 1 is set in the bitplace if the item was read OK
1284                 0 if not read.
1285                 first item is LSB, (max 32 items! )
1286                 Stops parseing if an item is invalid unless the item == '-'
1287    sep - list separator (e.g. ',' or '|')
1288    str  - string to parse, must be terminated by 0 or sep
1289    ... - pointers to store the parsed values
1290
1291    return value - pointer to char after parsed data, 0 if there was an error.
1292
1293 */
1294
1295 /* '0'-'3' are ASCII 0x30 to 0x33 */
1296 #define is0123(x) (((x) & 0xfc) == 0x30)
1297
1298 const char* parse_list(const char *fmt, uint32_t *set_vals,
1299                        const char sep, const char* str, ...)
1300 {
1301     va_list ap;
1302     const char* p = str, *f = fmt;
1303     const char** s;
1304     int* d;
1305     bool set;
1306     int i=0;
1307
1308     va_start(ap, str);
1309     if (set_vals)
1310         *set_vals = 0;
1311     while (*fmt)
1312     {
1313         /* Check for separator, if we're not at the start */
1314         if (f != fmt)
1315         {
1316             if (*p != sep)
1317                 goto err;
1318             p++;
1319         }
1320         set = false;
1321         switch (*fmt++)
1322         {
1323             case 's': /* string - return a pointer to it (not a copy) */
1324                 s = va_arg(ap, const char **);
1325
1326                 *s = p;
1327                 while (*p && *p != sep)
1328                    p++;
1329                 set = (s[0][0]!='-') && (s[0][1]!=sep) ;
1330                 break;
1331
1332             case 'd': /* int */
1333                 d = va_arg(ap, int*);
1334                 if (!isdigit(*p))
1335                 {
1336                     if (!set_vals || *p != '-')
1337                         goto err;
1338                     while (*p && *p != sep)
1339                         p++;
1340                 }
1341                 else
1342                 {
1343                    *d = *p++ - '0';
1344                     while (isdigit(*p))
1345                        *d = (*d * 10) + (*p++ - '0');
1346                     set = true;
1347                 }
1348
1349                 break;
1350
1351 #ifdef HAVE_LCD_COLOR
1352             case 'c': /* colour (rrggbb - e.g. f3c1a8) */
1353                 d = va_arg(ap, int*);
1354
1355                 if (hex_to_rgb(p, d) < 0)
1356                 {
1357                     if (!set_vals || *p != '-')
1358                         goto err;
1359                     while (*p && *p != sep)
1360                         p++;
1361                 }
1362                 else
1363                 {
1364                     p += 6;
1365                     set = true;
1366                 }
1367
1368                 break;
1369 #endif
1370
1371 #if LCD_DEPTH == 2 || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 2)
1372             case 'g': /* greyscale colour (0-3) */
1373                 d = va_arg(ap, int*);
1374
1375                 if (is0123(*p))
1376                 {
1377                     *d = *p++ - '0';
1378                     set = true;
1379                 }
1380                 else if (!set_vals || *p != '-')
1381                     goto err;
1382                 else
1383                 {
1384                     while (*p && *p != sep)
1385                         p++;
1386                 }
1387
1388                 break;
1389 #endif
1390
1391             default:  /* Unknown format type */
1392                 goto err;
1393                 break;
1394         }
1395         if (set_vals && set)
1396             *set_vals |= (1<<i);
1397         i++;
1398     }
1399
1400     va_end(ap);
1401     return p;
1402
1403 err:
1404     va_end(ap);
1405     return 0;
1406 }
1407 #endif