apps/plugin.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Björn Stenberg
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #ifndef _PLUGIN_H_
  20 #define _PLUGIN_H_
  21
  22 /* instruct simulator code to not redefine any symbols when compiling plugins.
  23    (the PLUGIN macro is defined in apps/plugins/Makefile) */
  24 #ifdef PLUGIN
  25 #define NO_REDEFINES_PLEASE
  26 #endif
  27
  28 #ifndef MEM
  29 #define MEM 2
  30 #endif
  31
  32 #include <stdbool.h>
  33 #include <sys/types.h>
  34 #include <stdarg.h>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include "config.h"
  38 #include "system.h"
  39 #include "dir.h"
  40 #include "kernel.h"
  41 #include "thread.h"
  42 #include "button.h"
  43 #include "action.h"
  44 #include "usb.h"
  45 #include "font.h"
  46 #include "lcd.h"
  47 #include "id3.h"
  48 #include "sound.h"
  49 #include "mpeg.h"
  50 #include "audio.h"
  51 #include "mp3_playback.h"
  52 #include "talk.h"
  53 #ifdef RB_PROFILE
  54 #include "profile.h"
  55 #endif
  56 #include "misc.h"
  57 #if (CONFIG_CODEC == SWCODEC)
  58 #include "dsp.h"
  59 #include "codecs.h"
  60 #include "playback.h"
  61 #include "metadata.h"
  62 #ifdef HAVE_RECORDING
  63 #include "recording.h"
  64 #endif
  65 #else
  66 #include "mas.h"
  67 #endif /* CONFIG_CODEC == SWCODEC */
  68 #include "settings.h"
  69 #include "timer.h"
  70 #include "playlist.h"
  71 #ifdef HAVE_LCD_BITMAP
  72 #include "scrollbar.h"
  73 #endif
  74 #include "statusbar.h"
  75 #include "menu.h"
  76 #include "rbunicode.h"
  77 #include "list.h"
  78 #include "tree.h"
  79 #include "color_picker.h"
  80
  81 #ifdef HAVE_REMOTE_LCD
  82 #include "lcd-remote.h"
  83 #endif
  84
  85 #ifdef PLUGIN
  86
  87 #if defined(DEBUG) || defined(SIMULATOR)
  88 #undef DEBUGF
  89 #define DEBUGF  rb->debugf
  90 #undef LDEBUGF
  91 #define LDEBUGF rb->debugf
  92 #else
  93 #define DEBUGF(...)
  94 #define LDEBUGF(...)
  95 #endif
  96
  97 #ifdef ROCKBOX_HAS_LOGF
  98 #undef LOGF
  99 #define LOGF rb->logf
 100 #else
 101 #define LOGF(...)
 102 #endif
 103
 104 #endif
 105
 106 #ifdef SIMULATOR
 107 #define PREFIX(_x_) sim_ ## _x_
 108 #else
 109 #define PREFIX(_x_) _x_
 110 #endif
 111
 112 #define PLUGIN_MAGIC 0x526F634B /* RocK */
 113
 114 /* increase this every time the api struct changes */
 115 #define PLUGIN_API_VERSION 73
 116
 117 /* update this to latest version if a change to the api struct breaks
 118    backwards compatibility (and please take the opportunity to sort in any
 119    new function which are "waiting" at the end of the function table) */
 120 #define PLUGIN_MIN_API_VERSION 73
 121
 122 /* plugin return codes */
 123 enum plugin_status {
 124     PLUGIN_OK = 0,
 125     PLUGIN_USB_CONNECTED,
 126     PLUGIN_ERROR = -1,
 127 };
 128
 129 /* NOTE: To support backwards compatibility, only add new functions at
 130          the end of the structure.  Every time you add a new function,
 131          remember to increase PLUGIN_API_VERSION.  If you make changes to the
 132          existing APIs then also update PLUGIN_MIN_API_VERSION to current
 133          version
 134  */
 135 struct plugin_api {
 136
 137     /* lcd */
 138     void (*lcd_set_contrast)(int x);
 139     void (*lcd_update)(void);
 140     void (*lcd_clear_display)(void);
 141     void (*lcd_setmargins)(int x, int y);
 142     int  (*lcd_getstringsize)(const unsigned char *str, int *w, int *h);
 143     void (*lcd_putsxy)(int x, int y, const unsigned char *string);
 144     void (*lcd_puts)(int x, int y, const unsigned char *string);
 145     void (*lcd_puts_scroll)(int x, int y, const unsigned char* string);
 146     void (*lcd_stop_scroll)(void);
 147 #ifdef HAVE_LCD_CHARCELLS
 148     void (*lcd_define_pattern)(unsigned long ucs, const char *pattern);
 149     unsigned long (*lcd_get_locked_pattern)(void);
 150     void (*lcd_unlock_pattern)(unsigned long ucs);
 151     void (*lcd_putc)(int x, int y, unsigned long ucs);
 152     void (*lcd_put_cursor)(int x, int y, unsigned long ucs);
 153     void (*lcd_remove_cursor)(void);
 154     void (*lcd_icon)(int icon, bool enable);
 155     void (*lcd_double_height)(bool on);
 156 #else
 157     void (*lcd_set_drawmode)(int mode);
 158     int  (*lcd_get_drawmode)(void);
 159     void (*lcd_setfont)(int font);
 160     void (*lcd_drawpixel)(int x, int y);
 161     void (*lcd_drawline)(int x1, int y1, int x2, int y2);
 162     void (*lcd_hline)(int x1, int x2, int y);
 163     void (*lcd_vline)(int x, int y1, int y2);
 164     void (*lcd_drawrect)(int x, int y, int width, int height);
 165     void (*lcd_fillrect)(int x, int y, int width, int height);
 166     void (*lcd_mono_bitmap_part)(const unsigned char *src, int src_x, int src_y,
 167                                  int stride, int x, int y, int width, int height);
 168     void (*lcd_mono_bitmap)(const unsigned char *src, int x, int y,
 169                             int width, int height);
 170 #if LCD_DEPTH > 1
 171     void     (*lcd_set_foreground)(unsigned foreground);
 172     unsigned (*lcd_get_foreground)(void);
 173     void     (*lcd_set_background)(unsigned foreground);
 174     unsigned (*lcd_get_background)(void);
 175     void (*lcd_bitmap_part)(const fb_data *src, int src_x, int src_y,
 176                             int stride, int x, int y, int width, int height);
 177     void (*lcd_bitmap)(const fb_data *src, int x, int y, int width,
 178                        int height);
 179     fb_data* (*lcd_get_backdrop)(void);
 180     void (*lcd_set_backdrop)(fb_data* backdrop);
 181 #endif
 182 #if LCD_DEPTH == 16
 183     void (*lcd_bitmap_transparent_part)(const fb_data *src,
 184             int src_x, int src_y, int stride,
 185             int x, int y, int width, int height);
 186     void (*lcd_bitmap_transparent)(const fb_data *src, int x, int y,
 187             int width, int height);
 188 #endif
 189     unsigned short *(*bidi_l2v)( const unsigned char *str, int orientation );
 190     const unsigned char *(*font_get_bits)( struct font *pf, unsigned short char_code );
 191     struct font* (*font_load)(const char *path);
 192     void (*lcd_puts_style)(int x, int y, const unsigned char *str, int style);
 193     void (*lcd_puts_scroll_style)(int x, int y, const unsigned char* string,
 194                                   int style);
 195     fb_data* lcd_framebuffer;
 196     void (*lcd_blit) (const fb_data* data, int x, int by, int width,
 197                       int bheight, int stride);
 198     void (*lcd_update_rect)(int x, int y, int width, int height);
 199     void (*gui_scrollbar_draw)(struct screen * screen, int x, int y,
 200                                int width, int height, int items,
 201                                int min_shown, int max_shown,
 202                                unsigned flags);
 203     struct font* (*font_get)(int font);
 204     int  (*font_getstringsize)(const unsigned char *str, int *w, int *h,
 205                                int fontnumber);
 206     int (*font_get_width)(struct font* pf, unsigned short char_code);
 207     void (*screen_clear_area)(struct screen * display, int xstart, int ystart,
 208                               int width, int height);
 209 #endif
 210     void (*backlight_on)(void);
 211     void (*backlight_off)(void);
 212     void (*backlight_set_timeout)(int index);
 213 #if CONFIG_CHARGING
 214     void (*backlight_set_timeout_plugged)(int index);
 215 #endif
 216     void (*splash)(int ticks, const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
 217
 218 #ifdef HAVE_REMOTE_LCD
 219     /* remote lcd */
 220     void (*lcd_remote_set_contrast)(int x);
 221     void (*lcd_remote_clear_display)(void);
 222     void (*lcd_remote_puts)(int x, int y, const unsigned char *string);
 223     void (*lcd_remote_lcd_puts_scroll)(int x, int y, const unsigned char* string);
 224     void (*lcd_remote_lcd_stop_scroll)(void);
 225     void (*lcd_remote_set_drawmode)(int mode);
 226     int  (*lcd_remote_get_drawmode)(void);
 227     void (*lcd_remote_setfont)(int font);
 228     int  (*lcd_remote_getstringsize)(const unsigned char *str, int *w, int *h);
 229     void (*lcd_remote_drawpixel)(int x, int y);
 230     void (*lcd_remote_drawline)(int x1, int y1, int x2, int y2);
 231     void (*lcd_remote_hline)(int x1, int x2, int y);
 232     void (*lcd_remote_vline)(int x, int y1, int y2);
 233     void (*lcd_remote_drawrect)(int x, int y, int nx, int ny);
 234     void (*lcd_remote_fillrect)(int x, int y, int nx, int ny);
 235     void (*lcd_remote_mono_bitmap_part)(const unsigned char *src, int src_x,
 236                                         int src_y, int stride, int x, int y,
 237                                         int width, int height);
 238     void (*lcd_remote_mono_bitmap)(const unsigned char *src, int x, int y,
 239                                    int width, int height);
 240     void (*lcd_remote_putsxy)(int x, int y, const unsigned char *string);
 241     void (*lcd_remote_puts_style)(int x, int y, const unsigned char *str, int style);
 242     void (*lcd_remote_puts_scroll_style)(int x, int y, const unsigned char* string,
 243                                          int style);
 244     fb_remote_data* lcd_remote_framebuffer;
 245     void (*lcd_remote_update)(void);
 246     void (*lcd_remote_update_rect)(int x, int y, int width, int height);
 247
 248     void (*remote_backlight_on)(void);
 249     void (*remote_backlight_off)(void);
 250 #endif
 251     struct screen* screens[NB_SCREENS];
 252 #if defined(HAVE_REMOTE_LCD) && (LCD_REMOTE_DEPTH > 1)
 253     void     (*lcd_remote_set_foreground)(unsigned foreground);
 254     unsigned (*lcd_remote_get_foreground)(void);
 255     void     (*lcd_remote_set_background)(unsigned background);
 256     unsigned (*lcd_remote_get_background)(void);
 257     void (*lcd_remote_bitmap_part)(const fb_remote_data *src, int src_x, int src_y,
 258                                    int stride, int x, int y, int width, int height);
 259     void (*lcd_remote_bitmap)(const fb_remote_data *src, int x, int y, int width,
 260                               int height);
 261 #endif
 262 #if defined(HAVE_LCD_COLOR) && !defined(SIMULATOR)
 263     void (*lcd_yuv_blit)(unsigned char * const src[3],
 264                          int src_x, int src_y, int stride,
 265                          int x, int y, int width, int height);
 266 #endif
 267
 268     /* list */
 269     void (*gui_synclist_init)(struct gui_synclist * lists,
 270             list_get_name callback_get_item_name,void * data,
 271             bool scroll_all,int selected_size);
 272     void (*gui_synclist_set_nb_items)(struct gui_synclist * lists, int nb_items);
 273     void (*gui_synclist_set_icon_callback)(struct gui_synclist * lists, list_get_icon icon_callback);
 274     int (*gui_synclist_get_nb_items)(struct gui_synclist * lists);
 275     int  (*gui_synclist_get_sel_pos)(struct gui_synclist * lists);
 276     void (*gui_synclist_draw)(struct gui_synclist * lists);
 277     void (*gui_synclist_select_item)(struct gui_synclist * lists,
 278     int item_number);
 279     void (*gui_synclist_add_item)(struct gui_synclist * lists);
 280     void (*gui_synclist_del_item)(struct gui_synclist * lists);
 281     void (*gui_synclist_limit_scroll)(struct gui_synclist * lists, bool scroll);
 282     void (*gui_synclist_flash)(struct gui_synclist * lists);
 283     unsigned (*gui_synclist_do_button)(struct gui_synclist * lists,
 284                                          unsigned button,enum list_wrap wrap);
 285     void (*gui_synclist_set_title)(struct gui_synclist *lists, char* title, int icon);
 286
 287     /* button */
 288     long (*button_get)(bool block);
 289     long (*button_get_w_tmo)(int ticks);
 290     int (*button_status)(void);
 291     void (*button_clear_queue)(void);
 292 #ifdef HAS_BUTTON_HOLD
 293     bool (*button_hold)(void);
 294 #endif
 295
 296     /* file */
 297     int (*PREFIX(open))(const char* pathname, int flags);
 298     int (*close)(int fd);
 299     ssize_t (*PREFIX(read))(int fd, void* buf, size_t count);
 300     off_t (*PREFIX(lseek))(int fd, off_t offset, int whence);
 301     int (*PREFIX(creat))(const char *pathname);
 302     ssize_t (*PREFIX(write))(int fd, const void* buf, size_t count);
 303     int (*PREFIX(remove))(const char* pathname);
 304     int (*PREFIX(rename))(const char* path, const char* newname);
 305     int (*PREFIX(ftruncate))(int fd, off_t length);
 306     off_t (*PREFIX(filesize))(int fd);
 307     int (*fdprintf)(int fd, const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
 308     int (*read_line)(int fd, char* buffer, int buffer_size);
 309     bool (*settings_parseline)(char* line, char** name, char** value);
 310 #ifndef SIMULATOR
 311     void (*ata_sleep)(void);
 312     bool (*ata_disk_is_active)(void);
 313 #endif
 314     void (*ata_spindown)(int seconds);
 315     void (*reload_directory)(void);
 316     char *(*create_numbered_filename)(char *buffer, const char *path,
 317                                       const char *prefix, const char *suffix,
 318                                       int numberlen IF_CNFN_NUM_(, int *num));
 319
 320     /* dir */
 321     DIR* (*opendir)(const char* name);
 322     int (*closedir)(DIR* dir);
 323     struct dirent* (*readdir)(DIR* dir);
 324     int (*mkdir)(const char *name);
 325     int (*rmdir)(const char *name);
 326
 327     /* kernel/ system */
 328     void (*PREFIX(sleep))(int ticks);
 329     void (*yield)(void);
 330 #ifdef HAVE_PRIORITY_SCHEDULING
 331     void (*priority_yield)(void);
 332 #endif
 333     volatile long* current_tick;
 334     long (*default_event_handler)(long event);
 335     long (*default_event_handler_ex)(long event, void (*callback)(void *), void *parameter);
 336     struct thread_entry* threads;
 337     struct thread_entry* (*create_thread)(void (*function)(void), void* stack,
 338                                           int stack_size, const char *name
 339                                           IF_PRIO(, int priority)
 340                                           IF_COP(, unsigned int core, bool fallback));
 341     void (*remove_thread)(struct thread_entry *thread);
 342     void (*reset_poweroff_timer)(void);
 343 #ifndef SIMULATOR
 344     int (*system_memory_guard)(int newmode);
 345     long *cpu_frequency;
 346 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 347 #ifdef CPU_BOOST_LOGGING
 348     void (*cpu_boost_)(bool on_off,char*location,int line);
 349 #else
 350     void (*cpu_boost)(bool on_off);
 351 #endif
 352 #endif
 353 #endif
 354     bool (*timer_register)(int reg_prio, void (*unregister_callback)(void),
 355                            long cycles, int int_prio,
 356                            void (*timer_callback)(void));
 357     void (*timer_unregister)(void);
 358     bool (*timer_set_period)(long count);
 359
 360     void (*queue_init)(struct event_queue *q, bool register_queue);
 361     void (*queue_delete)(struct event_queue *q);
 362     void (*queue_post)(struct event_queue *q, long id, intptr_t data);
 363     void (*queue_wait_w_tmo)(struct event_queue *q, struct event *ev,
 364             int ticks);
 365     void (*usb_acknowledge)(long id);
 366 #ifdef RB_PROFILE
 367     void (*profile_thread)(void);
 368     void (*profstop)(void);
 369     void (*profile_func_enter)(void *this_fn, void *call_site);
 370     void (*profile_func_exit)(void *this_fn, void *call_site);
 371 #endif
 372
 373 #ifdef SIMULATOR
 374     /* special simulator hooks */
 375 #if defined(HAVE_LCD_BITMAP) && LCD_DEPTH < 8
 376     void (*sim_lcd_ex_init)(int shades, unsigned long (*getpixel)(int, int));
 377     void (*sim_lcd_ex_update_rect)(int x, int y, int width, int height);
 378 #endif
 379 #endif
 380
 381     /* strings and memory */
 382     int (*snprintf)(char *buf, size_t size, const char *fmt, ...)
 383                     ATTRIBUTE_PRINTF(3, 4);
 384     int (*vsnprintf)(char *buf, int size, const char *fmt, va_list ap);
 385     char* (*strcpy)(char *dst, const char *src);
 386     char* (*strncpy)(char *dst, const char *src, size_t length);
 387     size_t (*strlen)(const char *str);
 388     char * (*strrchr)(const char *s, int c);
 389     int (*strcmp)(const char *, const char *);
 390     int (*strncmp)(const char *, const char *, size_t);
 391     int (*strcasecmp)(const char *, const char *);
 392     int (*strncasecmp)(const char *s1, const char *s2, size_t n);
 393     void* (*memset)(void *dst, int c, size_t length);
 394     void* (*memcpy)(void *out, const void *in, size_t n);
 395     void* (*memmove)(void *out, const void *in, size_t n);
 396     const unsigned char *_ctype_;
 397     int (*atoi)(const char *str);
 398     char *(*strchr)(const char *s, int c);
 399     char *(*strcat)(char *s1, const char *s2);
 400     void *(*memchr)(const void *s1, int c, size_t n);
 401     int (*memcmp)(const void *s1, const void *s2, size_t n);
 402     char *(*strcasestr) (const char* phaystack, const char* pneedle);
 403     char* (*strtok_r)(char *ptr, const char *sep, char **end);
 404     /* unicode stuff */
 405     const unsigned char* (*utf8decode)(const unsigned char *utf8, unsigned short *ucs);
 406     unsigned char* (*iso_decode)(const unsigned char *iso, unsigned char *utf8, int cp, int count);
 407     unsigned char* (*utf16LEdecode)(const unsigned char *utf16, unsigned char *utf8, int count);
 408     unsigned char* (*utf16BEdecode)(const unsigned char *utf16, unsigned char *utf8, int count);
 409     unsigned char* (*utf8encode)(unsigned long ucs, unsigned char *utf8);
 410     unsigned long (*utf8length)(const unsigned char *utf8);
 411     int (*utf8seek)(const unsigned char* utf8, int offset);
 412
 413     /* sound */
 414 #if CONFIG_CODEC == SWCODEC
 415     int (*sound_default)(int setting);
 416 #endif
 417     void (*sound_set)(int setting, int value);
 418     int (*sound_min)(int setting);
 419     int (*sound_max)(int setting);
 420 #ifndef SIMULATOR
 421     void (*mp3_play_data)(const unsigned char* start, int size, void (*get_more)(unsigned char** start, size_t* size));
 422     void (*mp3_play_pause)(bool play);
 423     void (*mp3_play_stop)(void);
 424     bool (*mp3_is_playing)(void);
 425 #if CONFIG_CODEC != SWCODEC
 426     void (*bitswap)(unsigned char *data, int length);
 427 #endif
 428 #endif /* !SIMULATOR */
 429 #if CONFIG_CODEC == SWCODEC
 430     const unsigned long *audio_master_sampr_list;
 431     const unsigned long *hw_freq_sampr;
 432     void (*pcm_apply_settings)(void);
 433     void (*pcm_play_data)(pcm_more_callback_type get_more,
 434             unsigned char* start, size_t size);
 435     void (*pcm_play_stop)(void);
 436     void (*pcm_set_frequency)(unsigned int frequency);
 437     bool (*pcm_is_playing)(void);
 438     bool (*pcm_is_paused)(void);
 439     void (*pcm_play_pause)(bool play);
 440     size_t (*pcm_get_bytes_waiting)(void);
 441     void (*pcm_calculate_peaks)(int *left, int *right);
 442 #ifdef HAVE_RECORDING
 443     const unsigned long *rec_freq_sampr;
 444     void (*pcm_init_recording)(void);
 445     void (*pcm_close_recording)(void);
 446     void (*pcm_record_data)(pcm_more_callback_type2 more_ready,
 447                             void *start, size_t size);
 448     void (*pcm_record_more)(void *start, size_t size);
 449     void (*pcm_stop_recording)(void);
 450     void (*pcm_calculate_rec_peaks)(int *left, int *right);
 451     void (*audio_set_recording_gain)(int left, int right, int type);
 452 #endif /* HAVE_RECORDING */
 453 #if INPUT_SRC_CAPS != 0
 454     void (*audio_set_output_source)(int monitor);
 455     void (*audio_set_input_source)(int source, unsigned flags);
 456 #endif
 457 #endif /* CONFIG_CODEC == SWCODC */
 458
 459     /* playback control */
 460     int (*playlist_amount)(void);
 461     int (*playlist_resume)(void);
 462     int (*playlist_start)(int start_index, int offset);
 463     void (*PREFIX(audio_play))(long offset);
 464     void (*audio_stop)(void);
 465     void (*audio_pause)(void);
 466     void (*audio_resume)(void);
 467     void (*audio_next)(void);
 468     void (*audio_prev)(void);
 469     void (*audio_ff_rewind)(long newtime);
 470     struct mp3entry* (*audio_next_track)(void);
 471     int (*audio_status)(void);
 472     bool (*audio_has_changed_track)(void);
 473     struct mp3entry* (*audio_current_track)(void);
 474     void (*audio_flush_and_reload_tracks)(void);
 475     int (*audio_get_file_pos)(void);
 476 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 477     unsigned long (*mpeg_get_last_header)(void);
 478 #endif
 479 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) || \
 480     (CONFIG_CODEC == SWCODEC)
 481     void (*sound_set_pitch)(int pitch);
 482 #endif
 483
 484     /* MAS communication */
 485 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 486     int (*mas_readmem)(int bank, int addr, unsigned long* dest, int len);
 487     int (*mas_writemem)(int bank, int addr, const unsigned long* src, int len);
 488     int (*mas_readreg)(int reg);
 489     int (*mas_writereg)(int reg, unsigned int val);
 490 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 491     int (*mas_codec_writereg)(int reg, unsigned int val);
 492     int (*mas_codec_readreg)(int reg);
 493     void (*i2c_begin)(void);
 494     void (*i2c_end)(void);
 495     int  (*i2c_write)(int address, unsigned char* buf, int count );
 496 #endif
 497 #endif
 498
 499     /* menu */
 500     int (*do_menu)(const struct menu_item_ex *menu, int *start_selected);
 501
 502     /* scroll bar */
 503     struct gui_syncstatusbar *statusbars;
 504     void (*gui_syncstatusbar_draw)(struct gui_syncstatusbar * bars, bool force_redraw);
 505
 506     /* options */
 507     const struct settings_list* (*find_setting)(void* variable, int *id);
 508     bool (*option_screen)(struct settings_list *setting,
 509                           bool use_temp_var, unsigned char* option_title);
 510     bool (*set_option)(const char* string, void* variable,
 511                        enum optiontype type, const struct opt_items* options,
 512                        int numoptions, void (*function)(int));
 513     bool (*set_bool_options)(const char* string, bool* variable,
 514                              const char* yes_str, int yes_voice,
 515                              const char* no_str, int no_voice,
 516                              void (*function)(bool));
 517     bool (*set_int)(const unsigned char* string, const char* unit, int voice_unit,
 518                     int* variable, void (*function)(int), int step, int min,
 519                     int max, void (*formatter)(char*, size_t, int, const char*) );
 520     bool (*set_bool)(const char* string, bool* variable );
 521
 522 #ifdef HAVE_LCD_COLOR
 523     bool (*set_color)(struct screen *display, char *title, unsigned *color,
 524                    unsigned banned_color);
 525 #endif
 526     /* action handling */
 527     int (*get_custom_action)(int context,int timeout,
 528                           const struct button_mapping* (*get_context_map)(int));
 529     int (*get_action)(int context, int timeout);
 530     bool (*action_userabort)(int timeout);
 531
 532     /* power */
 533     int (*battery_level)(void);
 534     bool (*battery_level_safe)(void);
 535     int (*battery_time)(void);
 536 #ifndef SIMULATOR
 537     unsigned int (*battery_voltage)(void);
 538 #endif
 539 #if CONFIG_CHARGING
 540     bool (*charger_inserted)(void);
 541 # if CONFIG_CHARGING == CHARGING_MONITOR
 542     bool (*charging_state)(void);
 543 # endif
 544 #endif
 545 #ifdef HAVE_USB_POWER
 546     bool (*usb_powered)(void);
 547 #endif
 548
 549     /* misc */
 550     void (*srand)(unsigned int seed);
 551     int  (*rand)(void);
 552     void (*qsort)(void *base, size_t nmemb, size_t size,
 553                   int(*compar)(const void *, const void *));
 554     int (*kbd_input)(char* buffer, int buflen);
 555     struct tm* (*get_time)(void);
 556     int  (*set_time)(const struct tm *tm);
 557 #if CONFIG_RTC
 558     time_t (*mktime)(struct tm *t);
 559 #endif
 560     void* (*plugin_get_buffer)(size_t *buffer_size);
 561     void* (*plugin_get_audio_buffer)(size_t *buffer_size);
 562     void (*plugin_tsr)(bool (*exit_callback)(bool reenter));
 563     char* (*plugin_get_current_filename)(void);
 564 #ifdef IRAM_STEAL
 565     void (*plugin_iram_init)(char *iramstart, char *iramcopy, size_t iram_size,
 566                              char *iedata, size_t iedata_size);
 567 #endif
 568 #if defined(DEBUG) || defined(SIMULATOR)
 569     void (*debugf)(const char *fmt, ...) ATTRIBUTE_PRINTF(1, 2);
 570 #endif
 571 #ifdef ROCKBOX_HAS_LOGF
 572     void (*logf)(const char *fmt, ...) ATTRIBUTE_PRINTF(1, 2);
 573 #endif
 574     struct user_settings* global_settings;
 575     struct system_status *global_status;
 576     bool (*mp3info)(struct mp3entry *entry, const char *filename, bool v1first);
 577     int (*count_mp3_frames)(int fd, int startpos, int filesize,
 578                             void (*progressfunc)(int));
 579     int (*create_xing_header)(int fd, long startpos, long filesize,
 580             unsigned char *buf, unsigned long num_frames,
 581             unsigned long rec_time, unsigned long header_template,
 582             void (*progressfunc)(int), bool generate_toc);
 583     unsigned long (*find_next_frame)(int fd, long *offset,
 584             long max_offset, unsigned long last_header);
 585
 586 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 587     unsigned short (*peak_meter_scale_value)(unsigned short val,
 588                                              int meterwidth);
 589     void (*peak_meter_set_use_dbfs)(bool use);
 590     bool (*peak_meter_get_use_dbfs)(void);
 591 #endif
 592 #ifdef HAVE_LCD_BITMAP
 593     int (*read_bmp_file)(char* filename, struct bitmap *bm, int maxsize,
 594                          int format);
 595     void (*screen_dump_set_hook)(void (*hook)(int fh));
 596 #endif
 597     int (*show_logo)(void);
 598     struct tree_context* (*tree_get_context)(void);
 599     void (*set_current_file)(char* path);
 600     void (*set_dirfilter)(int l_dirfilter);
 601
 602 #ifdef HAVE_WHEEL_POSITION
 603     int (*wheel_status)(void);
 604     void (*wheel_send_events)(bool send);
 605 #endif
 606
 607 #ifdef IRIVER_H100_SERIES
 608     /* Routines for the iriver_flash -plugin. */
 609     bool (*detect_original_firmware)(void);
 610     bool (*detect_flashed_ramimage)(void);
 611     bool (*detect_flashed_romimage)(void);
 612 #endif
 613     /* new stuff at the end, sort into place next time
 614        the API gets incompatible */
 615
 616 #if (CONFIG_CODEC == SWCODEC)
 617     void (*spinlock_init)(struct mutex *m);
 618     void (*spinlock_lock)(struct mutex *m);
 619     void (*spinlock_unlock)(struct mutex *m);
 620
 621     int (*codec_load_file)(const char* codec, struct codec_api *api);
 622     const char *(*get_codec_filename)(int cod_spec);
 623     bool (*get_metadata)(struct mp3entry* id3, int fd, const char* trackname,
 624                          bool v1first);
 625 #endif
 626     void (*led)(bool on);
 627 };
 628
 629 /* plugin header */
 630 struct plugin_header {
 631     unsigned long magic;
 632     unsigned short target_id;
 633     unsigned short api_version;
 634     unsigned char *load_addr;
 635     unsigned char *end_addr;
 636     enum plugin_status(*entry_point)(struct plugin_api*, void*);
 637 };
 638
 639 #ifdef PLUGIN
 640 #ifndef SIMULATOR
 641 extern unsigned char plugin_start_addr[];
 642 extern unsigned char plugin_end_addr[];
 643 #define PLUGIN_HEADER \
 644         const struct plugin_header __header \
 645         __attribute__ ((section (".header")))= { \
 646         PLUGIN_MAGIC, TARGET_ID, PLUGIN_API_VERSION, \
 647         plugin_start_addr, plugin_end_addr, plugin_start };
 648 #else /* SIMULATOR */
 649 #define PLUGIN_HEADER \
 650         const struct plugin_header __header = { \
 651         PLUGIN_MAGIC, TARGET_ID, PLUGIN_API_VERSION, \
 652         NULL, NULL, plugin_start };
 653 #endif /* SIMULATOR */
 654
 655 #ifdef USE_IRAM
 656 /* Declare IRAM variables */
 657 #define PLUGIN_IRAM_DECLARE \
 658     extern char iramcopy[]; \
 659     extern char iramstart[]; \
 660     extern char iramend[]; \
 661     extern char iedata[]; \
 662     extern char iend[];
 663 /* Initialize IRAM */
 664 #define PLUGIN_IRAM_INIT(api) \
 665     (api)->plugin_iram_init(iramstart, iramcopy, iramend-iramstart, \
 666                             iedata, iend-iedata);
 667 #else
 668 #define PLUGIN_IRAM_DECLARE
 669 #define PLUGIN_IRAM_INIT(api)
 670 #endif /* USE_IRAM */
 671 #endif /* PLUGIN */
 672
 673 int plugin_load(const char* plugin, void* parameter);
 674 void* plugin_get_buffer(size_t *buffer_size);
 675 void* plugin_get_audio_buffer(size_t *buffer_size);
 676 #ifdef IRAM_STEAL
 677 void plugin_iram_init(char *iramstart, char *iramcopy, size_t iram_size,
 678                       char *iedata, size_t iedata_size);
 679 #endif
 680
 681 /* plugin_tsr,
 682     callback returns true to allow the new plugin to load,
 683     reenter means the currently running plugin is being reloaded */
 684 void plugin_tsr(bool (*exit_callback)(bool reenter));
 685
 686 /* defined by the plugin */
 687 enum plugin_status plugin_start(struct plugin_api* rockbox, void* parameter)
 688     NO_PROF_ATTR;
 689
 690 /* Use this macro in plugins where gcc tries to optimize by calling
 691  * these functions directly */
 692 #define MEM_FUNCTION_WRAPPERS(api) \
 693         void *memcpy(void *dest, const void *src, size_t n) \
 694         { \
 695             return (api)->memcpy(dest, src, n); \
 696         } \
 697         void *memset(void *dest, int c, size_t n) \
 698         { \
 699             return (api)->memset(dest, c, n); \
 700         } \
 701         void *memmove(void *dest, const void *src, size_t n) \
 702         { \
 703             return (api)->memmove(dest, src, n); \
 704         } \
 705         int memcmp(const void *s1, const void *s2, size_t n) \
 706         { \
 707             return (api)->memcmp(s1, s2, n); \
 708         }
 709
 710 #endif