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