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