apps/plugin.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Björn 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 "plugin.h"
  22 #include <ctype.h>
  23 #include <string.h>
  24 #include <stdlib.h>
  25 #include "debug.h"
  26 #include "i2c.h"
  27 #include "lang.h"
  28 #include "led.h"
  29 #include "keyboard.h"
  30 #include "backlight.h"
  31 #include "sound_menu.h"
  32 #include "mp3data.h"
  33 #include "powermgmt.h"
  34 #include "splash.h"
  35 #include "logf.h"
  36 #include "option_select.h"
  37 #include "talk.h"
  38 #include "version.h"
  39 #include "storage.h"
  40 #include "pcmbuf.h"
  41 #include "errno.h"
  42 #include "diacritic.h"
  43 #include "filefuncs.h"
  44 #include "load_code.h"
  45
  46 #if CONFIG_CHARGING
  47 #include "power.h"
  48 #endif
  49
  50 #ifdef HAVE_LCD_BITMAP
  51 #include "scrollbar.h"
  52 #include "peakmeter.h"
  53 #include "bmp.h"
  54 #include "bidi.h"
  55 #endif
  56
  57 #ifdef USB_ENABLE_HID
  58 #include "usbstack/usb_hid.h"
  59 #endif
  60
  61 #if defined (SIMULATOR)
  62 #define PREFIX(_x_) sim_ ## _x_
  63 #elif defined (APPLICATION)
  64 #define PREFIX(_x_) app_ ## _x_
  65 #else
  66 #define PREFIX(_x_) _x_
  67 #endif
  68
  69 #if defined (APPLICATION)
  70 /* For symmetry reasons (we want app_ and sim_ to behave similarly), some
  71  * wrappers are needed */
  72 static int app_close(int fd)
  73 {
  74     return close(fd);
  75 }
  76
  77 static ssize_t app_read(int fd, void *buf, size_t count)
  78 {
  79     return read(fd,buf,count);
  80 }
  81
  82 static off_t app_lseek(int fd, off_t offset, int whence)
  83 {
  84     return lseek(fd,offset,whence);
  85 }
  86
  87 static ssize_t app_write(int fd, const void *buf, size_t count)
  88 {
  89     return write(fd,buf,count);
  90 }
  91
  92 static int app_ftruncate(int fd, off_t length)
  93 {
  94     return ftruncate(fd,length);
  95 }
  96 #endif
  97
  98 #if defined(HAVE_PLUGIN_CHECK_OPEN_CLOSE) && (MAX_OPEN_FILES>32)
  99 #warning "MAX_OPEN_FILES>32, disabling plugin file open/close checking"
 100 #undef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 101 #endif
 102
 103 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 104 static unsigned int open_files;
 105 #endif
 106
 107 #if (CONFIG_PLATFORM & PLATFORM_HOSTED)
 108 static unsigned char pluginbuf[PLUGIN_BUFFER_SIZE];
 109 void sim_lcd_ex_init(unsigned long (*getpixel)(int, int));
 110 void sim_lcd_ex_update_rect(int x, int y, int width, int height);
 111 #else
 112 extern unsigned char pluginbuf[];
 113 #include "bitswap.h"
 114 #endif
 115
 116 /* for actual plugins only, not for codecs */
 117 static int  plugin_size = 0;
 118 static bool (*pfn_tsr_exit)(bool reenter) = NULL; /* TSR exit callback */
 119 static char current_plugin[MAX_PATH];
 120 /* NULL if no plugin is loaded, otherwise the handle that lc_open() returned */
 121 static void *current_plugin_handle;
 122
 123 char *plugin_get_current_filename(void);
 124
 125 /* Some wrappers used to monitor open and close and detect leaks*/
 126 static int open_wrapper(const char* pathname, int flags, ...);
 127 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 128 static int close_wrapper(int fd);
 129 static int creat_wrapper(const char *pathname, mode_t mode);
 130 #endif
 131
 132 static const struct plugin_api rockbox_api = {
 133
 134     /* lcd */
 135 #ifdef HAVE_LCD_CONTRAST
 136     lcd_set_contrast,
 137 #endif
 138     lcd_update,
 139     lcd_clear_display,
 140     lcd_getstringsize,
 141     lcd_putsxy,
 142     lcd_putsxyf,
 143     lcd_puts,
 144     lcd_putsf,
 145     lcd_puts_scroll,
 146     lcd_stop_scroll,
 147 #ifdef HAVE_LCD_CHARCELLS
 148     lcd_define_pattern,
 149     lcd_get_locked_pattern,
 150     lcd_unlock_pattern,
 151     lcd_putc,
 152     lcd_put_cursor,
 153     lcd_remove_cursor,
 154     lcd_icon,
 155     lcd_double_height,
 156 #else
 157     &lcd_static_framebuffer[0][0],
 158     lcd_update_rect,
 159     lcd_set_drawmode,
 160     lcd_get_drawmode,
 161     screen_helper_setfont,
 162     lcd_drawpixel,
 163     lcd_drawline,
 164     lcd_hline,
 165     lcd_vline,
 166     lcd_drawrect,
 167     lcd_fillrect,
 168     lcd_mono_bitmap_part,
 169     lcd_mono_bitmap,
 170 #if LCD_DEPTH > 1
 171     lcd_set_foreground,
 172     lcd_get_foreground,
 173     lcd_set_background,
 174     lcd_get_background,
 175     lcd_bitmap_part,
 176     lcd_bitmap,
 177     lcd_get_backdrop,
 178     lcd_set_backdrop,
 179 #endif
 180 #if LCD_DEPTH == 16
 181     lcd_bitmap_transparent_part,
 182     lcd_bitmap_transparent,
 183 #if MEMORYSIZE > 2
 184     lcd_blit_yuv,
 185 #if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \
 186     || defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630) \
 187     || defined(SANSA_FUZE) || defined(SANSA_E200V2) || defined(SANSA_FUZEV2) \
 188     || defined(TOSHIBA_GIGABEAT_S) || defined(PHILIPS_SA9200)
 189     lcd_yuv_set_options,
 190 #endif
 191 #endif /* MEMORYSIZE > 2 */
 192 #elif (LCD_DEPTH < 4) && (CONFIG_PLATFORM & PLATFORM_NATIVE)
 193     lcd_blit_mono,
 194     lcd_blit_grey_phase,
 195 #endif /* LCD_DEPTH */
 196 #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
 197     lcd_blit_pal256,
 198     lcd_pal256_update_pal,
 199 #endif
 200     lcd_puts_style,
 201     lcd_puts_scroll_style,
 202 #ifdef HAVE_LCD_INVERT
 203     lcd_set_invert_display,
 204 #endif /* HAVE_LCD_INVERT */
 205 #if defined(HAVE_LCD_MODES)
 206     lcd_set_mode,
 207 #endif
 208 #if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
 209     &button_queue,
 210 #endif
 211     bidi_l2v,
 212 #ifdef HAVE_LCD_BITMAP
 213     is_diacritic,
 214 #endif
 215     font_get_bits,
 216     font_load,
 217     font_unload,
 218     font_get,
 219     font_getstringsize,
 220     font_get_width,
 221     screen_clear_area,
 222     gui_scrollbar_draw,
 223 #endif /* HAVE_LCD_BITMAP */
 224     get_codepage_name,
 225
 226     backlight_on,
 227     backlight_off,
 228     backlight_set_timeout,
 229 #ifdef HAVE_BACKLIGHT_BRIGHTNESS
 230     backlight_set_brightness,
 231 #endif /* HAVE_BACKLIGHT_BRIGHTNESS */
 232
 233 #if CONFIG_CHARGING
 234     backlight_set_timeout_plugged,
 235 #endif
 236     is_backlight_on,
 237     splash,
 238     splashf,
 239
 240 #ifdef HAVE_REMOTE_LCD
 241     /* remote lcd */
 242     lcd_remote_set_contrast,
 243     lcd_remote_clear_display,
 244     lcd_remote_puts,
 245     lcd_remote_puts_scroll,
 246     lcd_remote_stop_scroll,
 247     lcd_remote_set_drawmode,
 248     lcd_remote_get_drawmode,
 249     lcd_remote_setfont,
 250     lcd_remote_getstringsize,
 251     lcd_remote_drawpixel,
 252     lcd_remote_drawline,
 253     lcd_remote_hline,
 254     lcd_remote_vline,
 255     lcd_remote_drawrect,
 256     lcd_remote_fillrect,
 257     lcd_remote_mono_bitmap_part,
 258     lcd_remote_mono_bitmap,
 259     lcd_remote_putsxy,
 260     lcd_remote_puts_style,
 261     lcd_remote_puts_scroll_style,
 262     &lcd_remote_static_framebuffer[0][0],
 263     lcd_remote_update,
 264     lcd_remote_update_rect,
 265
 266     remote_backlight_on,
 267     remote_backlight_off,
 268     remote_backlight_set_timeout,
 269 #if CONFIG_CHARGING
 270     remote_backlight_set_timeout_plugged,
 271 #endif
 272 #endif /* HAVE_REMOTE_LCD */
 273 #if NB_SCREENS == 2
 274     {&screens[SCREEN_MAIN], &screens[SCREEN_REMOTE]},
 275 #else
 276     {&screens[SCREEN_MAIN]},
 277 #endif
 278 #if defined(HAVE_REMOTE_LCD) && (LCD_REMOTE_DEPTH > 1)
 279     lcd_remote_set_foreground,
 280     lcd_remote_get_foreground,
 281     lcd_remote_set_background,
 282     lcd_remote_get_background,
 283     lcd_remote_bitmap_part,
 284     lcd_remote_bitmap,
 285 #endif
 286     viewport_set_defaults,
 287 #ifdef HAVE_LCD_BITMAP
 288     viewportmanager_theme_enable,
 289     viewportmanager_theme_undo,
 290 #endif
 291
 292     /* list */
 293     gui_synclist_init,
 294     gui_synclist_set_nb_items,
 295     gui_synclist_set_icon_callback,
 296     gui_synclist_get_nb_items,
 297     gui_synclist_get_sel_pos,
 298     gui_synclist_draw,
 299     gui_synclist_select_item,
 300     gui_synclist_add_item,
 301     gui_synclist_del_item,
 302     gui_synclist_limit_scroll,
 303     gui_synclist_do_button,
 304     gui_synclist_set_title,
 305     gui_syncyesno_run,
 306     simplelist_info_init,
 307     simplelist_show_list,
 308
 309     /* button */
 310     button_get,
 311     button_get_w_tmo,
 312     button_status,
 313 #ifdef HAVE_BUTTON_DATA
 314     button_get_data,
 315     button_status_wdata,
 316 #endif
 317     button_clear_queue,
 318     button_queue_count,
 319 #ifdef HAS_BUTTON_HOLD
 320     button_hold,
 321 #endif
 322 #ifdef HAVE_TOUCHSCREEN
 323     touchscreen_set_mode,
 324     touchscreen_get_mode,
 325 #endif
 326
 327 #ifdef HAVE_BUTTON_LIGHT
 328     buttonlight_set_timeout,
 329     buttonlight_off,
 330     buttonlight_on,
 331 #ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
 332     buttonlight_set_brightness,
 333 #endif /* HAVE_BUTTONLIGHT_BRIGHTNESS */
 334 #endif /* HAVE_BUTTON_LIGHT */
 335
 336     /* file */
 337     open_utf8,
 338     (open_func)open_wrapper,
 339 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 340     close_wrapper,
 341 #else
 342     PREFIX(close),
 343 #endif
 344     (read_func)PREFIX(read),
 345     PREFIX(lseek),
 346 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 347     (creat_func)creat_wrapper,
 348 #else
 349     PREFIX(creat),
 350 #endif
 351     (write_func)PREFIX(write),
 352     PREFIX(remove),
 353     PREFIX(rename),
 354     PREFIX(ftruncate),
 355     filesize,
 356     fdprintf,
 357     read_line,
 358     settings_parseline,
 359     storage_sleep,
 360     storage_spin,
 361     storage_spindown,
 362 #if USING_STORAGE_CALLBACK
 363     register_storage_idle_func,
 364     unregister_storage_idle_func,
 365 #endif /* USING_STORAGE_CALLBACK */
 366     reload_directory,
 367     create_numbered_filename,
 368     file_exists,
 369     strip_extension,
 370     crc_32,
 371     filetype_get_attr,
 372
 373     /* dir */
 374     (opendir_func)opendir,
 375     (closedir_func)closedir,
 376     (readdir_func)readdir,
 377     mkdir,
 378     rmdir,
 379     dir_exists,
 380     dir_get_info,
 381
 382     /* browsing */
 383     browse_context_init,
 384     rockbox_browse,
 385
 386     /* kernel/ system */
 387 #if defined(CPU_ARM) && CONFIG_PLATFORM & PLATFORM_NATIVE
 388     __div0,
 389 #endif
 390     sleep,
 391     yield,
 392     &current_tick,
 393     default_event_handler,
 394     default_event_handler_ex,
 395     create_thread,
 396     thread_self,
 397     thread_exit,
 398     thread_wait,
 399 #if (CONFIG_CODEC == SWCODEC)
 400     thread_thaw,
 401 #ifdef HAVE_PRIORITY_SCHEDULING
 402     thread_set_priority,
 403 #endif
 404     mutex_init,
 405     mutex_lock,
 406     mutex_unlock,
 407 #endif
 408
 409     reset_poweroff_timer,
 410 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 411     system_memory_guard,
 412     &cpu_frequency,
 413
 414 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 415 #ifdef CPU_BOOST_LOGGING
 416     cpu_boost_,
 417 #else
 418     cpu_boost,
 419 #endif
 420 #endif /* HAVE_ADJUSTABLE_CPU_FREQ */
 421 #endif /* PLATFORM_NATIVE */
 422 #ifdef HAVE_SCHEDULER_BOOSTCTRL
 423     trigger_cpu_boost,
 424     cancel_cpu_boost,
 425 #endif
 426
 427     commit_dcache,
 428     commit_discard_dcache,
 429     commit_discard_idcache,
 430
 431     lc_open,
 432     lc_open_from_mem,
 433     lc_get_header,
 434     lc_close,
 435
 436     timer_register,
 437     timer_unregister,
 438     timer_set_period,
 439
 440     queue_init,
 441     queue_delete,
 442     queue_post,
 443     queue_wait_w_tmo,
 444 #if CONFIG_CODEC == SWCODEC
 445     queue_enable_queue_send,
 446     queue_empty,
 447     queue_wait,
 448     queue_send,
 449     queue_reply,
 450 #endif
 451     usb_acknowledge,
 452 #ifdef USB_ENABLE_HID
 453     usb_hid_send,
 454 #endif
 455 #ifdef RB_PROFILE
 456     profile_thread,
 457     profstop,
 458     __cyg_profile_func_enter,
 459     __cyg_profile_func_exit,
 460 #endif
 461     add_event,
 462     remove_event,
 463     send_event,
 464
 465 #if (CONFIG_PLATFORM & PLATFORM_HOSTED)
 466     /* special simulator hooks */
 467 #if defined(HAVE_LCD_BITMAP) && LCD_DEPTH < 8
 468     sim_lcd_ex_init,
 469     sim_lcd_ex_update_rect,
 470 #endif
 471 #endif
 472
 473     /* strings and memory */
 474     snprintf,
 475     vsnprintf,
 476     strcpy,
 477     strlcpy,
 478     strlen,
 479     strrchr,
 480     strcmp,
 481     strncmp,
 482     strcasecmp,
 483     strncasecmp,
 484     memset,
 485     memcpy,
 486     memmove,
 487 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 488     _ctype_,
 489 #endif
 490     atoi,
 491     strchr,
 492     strcat,
 493     strlcat,
 494     memchr,
 495     memcmp,
 496     strcasestr,
 497     strtok_r,
 498     /* unicode stuff */
 499     utf8decode,
 500     iso_decode,
 501     utf16LEdecode,
 502     utf16BEdecode,
 503     utf8encode,
 504     utf8length,
 505     utf8seek,
 506
 507     /* the buflib memory management library */
 508     buflib_init,
 509     buflib_available,
 510     buflib_alloc,
 511     buflib_alloc_ex,
 512     buflib_alloc_maximum,
 513     buflib_buffer_in,
 514     buflib_buffer_out,
 515     buflib_free,
 516     buflib_shrink,
 517     buflib_get_data,
 518     buflib_get_name,
 519
 520     /* sound */
 521     sound_set,
 522     sound_default,
 523     sound_min,
 524     sound_max,
 525     sound_unit,
 526     sound_val2phys,
 527 #ifdef AUDIOHW_HAVE_EQ
 528     sound_enum_hw_eq_band_setting,
 529 #endif
 530 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 531     mp3_play_data,
 532     mp3_play_pause,
 533     mp3_play_stop,
 534     mp3_is_playing,
 535 #if CONFIG_CODEC != SWCODEC
 536     bitswap,
 537 #endif
 538 #endif
 539 #if CONFIG_CODEC == SWCODEC
 540     &audio_master_sampr_list[0],
 541     &hw_freq_sampr[0],
 542     pcm_apply_settings,
 543     pcm_play_data,
 544     pcm_play_stop,
 545     pcm_set_frequency,
 546     pcm_is_playing,
 547     pcm_is_paused,
 548     pcm_play_pause,
 549     pcm_get_bytes_waiting,
 550     pcm_calculate_peaks,
 551     pcm_get_peak_buffer,
 552     pcm_play_lock,
 553     pcm_play_unlock,
 554     beep_play,
 555 #ifdef HAVE_RECORDING
 556     &rec_freq_sampr[0],
 557     pcm_init_recording,
 558     pcm_close_recording,
 559     pcm_record_data,
 560     pcm_stop_recording,
 561     pcm_calculate_rec_peaks,
 562     audio_set_recording_gain,
 563 #endif /* HAVE_RECORDING */
 564 #if INPUT_SRC_CAPS != 0
 565     audio_set_output_source,
 566     audio_set_input_source,
 567 #endif
 568     dsp_crossfeed_enable,
 569     dsp_eq_enable,
 570     dsp_dither_enable,
 571 #ifdef HAVE_PITCHCONTROL
 572     dsp_set_timestretch,
 573 #endif
 574     dsp_configure,
 575     dsp_get_config,
 576     dsp_process,
 577
 578     mixer_channel_status,
 579     mixer_channel_get_buffer,
 580     mixer_channel_calculate_peaks,
 581     mixer_channel_play_data,
 582     mixer_channel_play_pause,
 583     mixer_channel_stop,
 584     mixer_channel_set_amplitude,
 585     mixer_channel_get_bytes_waiting,
 586
 587     system_sound_play,
 588     keyclick_click,
 589 #endif /* CONFIG_CODEC == SWCODEC */
 590     /* playback control */
 591     playlist_amount,
 592     playlist_resume,
 593     playlist_start,
 594     playlist_add,
 595     playlist_sync,
 596     playlist_remove_all_tracks,
 597     playlist_create,
 598     playlist_insert_track,
 599     playlist_insert_directory,
 600     playlist_shuffle,
 601     audio_play,
 602     audio_stop,
 603     audio_pause,
 604     audio_resume,
 605     audio_next,
 606     audio_prev,
 607     audio_ff_rewind,
 608     audio_next_track,
 609     audio_status,
 610     audio_current_track,
 611     audio_flush_and_reload_tracks,
 612     audio_get_file_pos,
 613 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 614     mpeg_get_last_header,
 615 #endif
 616 #if ((CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) || \
 617      (CONFIG_CODEC == SWCODEC)) && defined (HAVE_PITCHCONTROL)
 618     sound_set_pitch,
 619 #endif
 620
 621 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 622     /* MAS communication */
 623     mas_readmem,
 624     mas_writemem,
 625     mas_readreg,
 626     mas_writereg,
 627 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 628     mas_codec_writereg,
 629     mas_codec_readreg,
 630     i2c_begin,
 631     i2c_end,
 632     i2c_write,
 633 #endif
 634 #endif /* !SIMULATOR && CONFIG_CODEC != SWCODEC */
 635
 636     /* menu */
 637     do_menu,
 638     /* statusbars */
 639     &statusbars,
 640     gui_syncstatusbar_draw,
 641
 642     /* options */
 643     get_settings_list,
 644     find_setting,
 645     option_screen,
 646     set_option,
 647     set_bool_options,
 648     set_int,
 649     set_bool,
 650 #ifdef HAVE_LCD_COLOR
 651     set_color,
 652 #endif
 653
 654     /* action handling */
 655     get_custom_action,
 656     get_action,
 657 #ifdef HAVE_TOUCHSCREEN
 658     action_get_touchscreen_press,
 659 #endif
 660     action_userabort,
 661
 662     /* power */
 663     battery_level,
 664     battery_level_safe,
 665     battery_time,
 666     battery_voltage,
 667 #if CONFIG_CHARGING
 668     charger_inserted,
 669 # if CONFIG_CHARGING >= CHARGING_MONITOR
 670     charging_state,
 671 # endif
 672 #endif
 673 #ifdef HAVE_USB_POWER
 674     usb_powered,
 675 #endif
 676
 677     /* misc */
 678 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 679     &errno,
 680 #endif
 681     srand,
 682     rand,
 683     (qsort_func)qsort,
 684     kbd_input,
 685     get_time,
 686     set_time,
 687 #if CONFIG_RTC
 688     mktime,
 689 #endif
 690     plugin_get_buffer,
 691     plugin_get_audio_buffer,
 692     plugin_tsr,
 693     plugin_get_current_filename,
 694 #if defined(DEBUG) || defined(SIMULATOR)
 695     debugf,
 696 #endif
 697 #ifdef ROCKBOX_HAS_LOGF
 698     _logf,
 699 #endif
 700     &global_settings,
 701     &global_status,
 702     talk_disable,
 703 #if CONFIG_CODEC == SWCODEC
 704     codec_thread_do_callback,
 705     codec_load_file,
 706     codec_run_proc,
 707     codec_close,
 708     get_codec_filename,
 709     find_array_ptr,
 710     remove_array_ptr,
 711     round_value_to_list32,
 712 #endif /* CONFIG_CODEC == SWCODEC */
 713     get_metadata,
 714     mp3info,
 715     count_mp3_frames,
 716     create_xing_header,
 717     find_next_frame,
 718 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 719     peak_meter_scale_value,
 720     peak_meter_set_use_dbfs,
 721     peak_meter_get_use_dbfs,
 722 #endif
 723 #ifdef HAVE_LCD_BITMAP
 724     read_bmp_file,
 725     read_bmp_fd,
 726 #ifdef HAVE_JPEG
 727     read_jpeg_file,
 728     read_jpeg_fd,
 729 #endif
 730     screen_dump_set_hook,
 731 #endif
 732     show_logo,
 733     tree_get_context,
 734     tree_get_entries,
 735     tree_get_entry_at,
 736     set_current_file,
 737     set_dirfilter,
 738
 739 #ifdef HAVE_WHEEL_POSITION
 740     wheel_status,
 741     wheel_send_events,
 742 #endif
 743
 744 #ifdef IRIVER_H100_SERIES
 745     /* Routines for the iriver_flash -plugin. */
 746     detect_original_firmware,
 747     detect_flashed_ramimage,
 748     detect_flashed_romimage,
 749 #endif
 750     led,
 751 #if (CONFIG_CODEC == SWCODEC)
 752     bufopen,
 753     bufalloc,
 754     bufclose,
 755     bufseek,
 756     bufadvance,
 757     bufread,
 758     bufgetdata,
 759     bufgettail,
 760     bufcuttail,
 761
 762     buf_handle_offset,
 763     buf_set_base_handle,
 764     buf_used,
 765 #endif
 766
 767 #ifdef HAVE_TAGCACHE
 768     tagcache_search,
 769     tagcache_search_set_uniqbuf,
 770     tagcache_search_add_filter,
 771     tagcache_get_next,
 772     tagcache_retrieve,
 773     tagcache_search_finish,
 774     tagcache_get_numeric,
 775 #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE)
 776     tagcache_fill_tags,
 777 #endif
 778 #endif
 779
 780 #ifdef HAVE_ALBUMART
 781     search_albumart_files,
 782 #endif
 783
 784 #ifdef HAVE_SEMAPHORE_OBJECTS
 785     semaphore_init,
 786     semaphore_wait,
 787     semaphore_release,
 788 #endif
 789
 790     rbversion,
 791
 792     /* new stuff at the end, sort into place next time
 793        the API gets incompatible */
 794 };
 795
 796 int plugin_load(const char* plugin, const void* parameter)
 797 {
 798     struct plugin_header *p_hdr;
 799     struct lc_header     *hdr;
 800
 801     if (current_plugin_handle && pfn_tsr_exit)
 802     {    /* if we have a resident old plugin and a callback */
 803         if (pfn_tsr_exit(!strcmp(current_plugin, plugin)) == false )
 804         {
 805             /* not allowing another plugin to load */
 806             return PLUGIN_OK;
 807         }
 808         lc_close(current_plugin_handle);
 809         current_plugin_handle = pfn_tsr_exit = NULL;
 810     }
 811
 812     splash(0, ID2P(LANG_WAIT));
 813     strcpy(current_plugin, plugin);
 814
 815     current_plugin_handle = lc_open(plugin, pluginbuf, PLUGIN_BUFFER_SIZE);
 816     if (current_plugin_handle == NULL) {
 817         splashf(HZ*2, str(LANG_PLUGIN_CANT_OPEN), plugin);
 818         return -1;
 819     }
 820
 821     p_hdr = lc_get_header(current_plugin_handle);
 822
 823     hdr = p_hdr ? &p_hdr->lc_hdr : NULL;
 824
 825
 826     if (hdr == NULL
 827         || hdr->magic != PLUGIN_MAGIC
 828         || hdr->target_id != TARGET_ID
 829 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 830         || hdr->load_addr != pluginbuf
 831         || hdr->end_addr > pluginbuf + PLUGIN_BUFFER_SIZE
 832 #endif
 833         )
 834     {
 835         lc_close(current_plugin_handle);
 836         splash(HZ*2, str(LANG_PLUGIN_WRONG_MODEL));
 837         return -1;
 838     }
 839     if (hdr->api_version > PLUGIN_API_VERSION
 840         || hdr->api_version < PLUGIN_MIN_API_VERSION)
 841     {
 842         lc_close(current_plugin_handle);
 843         splash(HZ*2, str(LANG_PLUGIN_WRONG_VERSION));
 844         return -1;
 845     }
 846 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 847     plugin_size = hdr->end_addr - pluginbuf;
 848 #else
 849     plugin_size = 0;
 850 #endif
 851
 852     *(p_hdr->api) = &rockbox_api;
 853
 854     lcd_clear_display();
 855     lcd_update();
 856
 857 #ifdef HAVE_REMOTE_LCD
 858     lcd_remote_clear_display();
 859     lcd_remote_update();
 860 #endif
 861     push_current_activity(ACTIVITY_PLUGIN);
 862     /* some plugins assume the entry cache doesn't move and save pointers to it
 863      * they should be fixed properly instead of this lock */
 864     tree_lock_cache(tree_get_context());
 865
 866     FOR_NB_SCREENS(i)
 867        viewportmanager_theme_enable(i, false, NULL);
 868
 869 #ifdef HAVE_TOUCHSCREEN
 870     touchscreen_set_mode(TOUCHSCREEN_BUTTON);
 871 #endif
 872
 873 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 874     open_files = 0;
 875 #endif
 876
 877     int rc = p_hdr->entry_point(parameter);
 878
 879     tree_unlock_cache(tree_get_context());
 880     pop_current_activity();
 881
 882     if (!pfn_tsr_exit)
 883     {   /* close handle if plugin is no tsr one */
 884         lc_close(current_plugin_handle);
 885         current_plugin_handle = NULL;
 886     }
 887
 888     /* Go back to the global setting in case the plugin changed it */
 889 #ifdef HAVE_TOUCHSCREEN
 890     touchscreen_set_mode(global_settings.touch_mode);
 891 #endif
 892
 893 #ifdef HAVE_LCD_BITMAP
 894     screen_helper_setfont(FONT_UI);
 895 #if LCD_DEPTH > 1
 896 #ifdef HAVE_LCD_COLOR
 897     lcd_set_drawinfo(DRMODE_SOLID, global_settings.fg_color,
 898                                    global_settings.bg_color);
 899 #else
 900     lcd_set_drawinfo(DRMODE_SOLID, LCD_DEFAULT_FG, LCD_DEFAULT_BG);
 901 #endif
 902 #else /* LCD_DEPTH == 1 */
 903     lcd_set_drawmode(DRMODE_SOLID);
 904 #endif /* LCD_DEPTH */
 905 #endif /* HAVE_LCD_BITMAP */
 906
 907
 908 #ifdef HAVE_REMOTE_LCD
 909 #if LCD_REMOTE_DEPTH > 1
 910     lcd_remote_set_drawinfo(DRMODE_SOLID, LCD_REMOTE_DEFAULT_FG,
 911                             LCD_REMOTE_DEFAULT_BG);
 912 #else
 913     lcd_remote_set_drawmode(DRMODE_SOLID);
 914 #endif
 915 #endif
 916
 917     lcd_clear_display();
 918 #ifdef HAVE_REMOTE_LCD
 919     lcd_remote_clear_display();
 920 #endif
 921
 922     FOR_NB_SCREENS(i)
 923         viewportmanager_theme_undo(i, true);
 924
 925 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
 926     if(open_files != 0 && !current_plugin_handle)
 927     {
 928         int fd;
 929         logf("Plugin '%s' leaks file handles", plugin);
 930
 931         static const char *lines[] =
 932             { ID2P(LANG_PLUGIN_ERROR),
 933               "#leak-file-handles" };
 934         static const struct text_message message={ lines, 2 };
 935         button_clear_queue(); /* Empty the keyboard buffer */
 936         gui_syncyesno_run(&message, NULL, NULL);
 937
 938         for(fd=0; fd < MAX_OPEN_FILES; fd++)
 939             if(open_files & (1<<fd))
 940                 close_wrapper(fd);
 941     }
 942 #endif
 943
 944     if (rc == PLUGIN_ERROR)
 945         splash(HZ*2, str(LANG_PLUGIN_ERROR));
 946
 947     return rc;
 948 }
 949
 950 /* Returns a pointer to the portion of the plugin buffer that is not already
 951    being used.  If no plugin is loaded, returns the entire plugin buffer */
 952 void* plugin_get_buffer(size_t *buffer_size)
 953 {
 954     int buffer_pos;
 955
 956     if (current_plugin_handle)
 957     {
 958         if (plugin_size >= PLUGIN_BUFFER_SIZE)
 959             return NULL;
 960
 961         *buffer_size = PLUGIN_BUFFER_SIZE-plugin_size;
 962         buffer_pos = plugin_size;
 963     }
 964     else
 965     {
 966         *buffer_size = PLUGIN_BUFFER_SIZE;
 967         buffer_pos = 0;
 968     }
 969
 970     return &pluginbuf[buffer_pos];
 971 }
 972
 973 /* Returns a pointer to the mp3 buffer.
 974    Playback gets stopped, to avoid conflicts.
 975    Talk buffer is stolen as well.
 976  */
 977 void* plugin_get_audio_buffer(size_t *buffer_size)
 978 {
 979     audio_stop();
 980     return audio_get_buffer(true, buffer_size);
 981 }
 982
 983 /* The plugin wants to stay resident after leaving its main function, e.g.
 984    runs from timer or own thread. The callback is registered to later
 985    instruct it to free its resources before a new plugin gets loaded. */
 986 void plugin_tsr(bool (*exit_callback)(bool))
 987 {
 988     pfn_tsr_exit = exit_callback; /* remember the callback for later */
 989 }
 990
 991 char *plugin_get_current_filename(void)
 992 {
 993     return current_plugin;
 994 }
 995
 996 static int open_wrapper(const char* pathname, int flags, ...)
 997 {
 998 /* we don't have an 'open' function. it's a define. and we need
 999  * the real file_open, hence PREFIX() doesn't work here */
1000     int fd;
1001 #if (CONFIG_PLATFORM & PLATFORM_HOSTED)
1002     if (flags & O_CREAT)
1003     {
1004         va_list ap;
1005         va_start(ap, flags);
1006         fd = open(pathname, flags, va_arg(ap, unsigned int));
1007         va_end(ap);
1008     }
1009     else
1010         fd = open(pathname, flags);
1011 #else
1012     fd = file_open(pathname,flags);
1013 #endif
1014
1015 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
1016     if(fd >= 0)
1017         open_files |= 1<<fd;
1018 #endif
1019     return fd;
1020 }
1021
1022 #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
1023 static int close_wrapper(int fd)
1024 {
1025     if((~open_files) & (1<<fd))
1026     {
1027         logf("double close from plugin");
1028     }
1029     if(fd >= 0)
1030         open_files &= (~(1<<fd));
1031
1032     return PREFIX(close)(fd);
1033 }
1034
1035 static int creat_wrapper(const char *pathname, mode_t mode)
1036 {
1037     (void)mode;
1038
1039     int fd = PREFIX(creat)(pathname, mode);
1040
1041     if(fd >= 0)
1042         open_files |= (1<<fd);
1043
1044     return fd;
1045 }
1046 #endif /* HAVE_PLUGIN_CHECK_OPEN_CLOSE */