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