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