firmware/export/events.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 by Miika Pekkarinen
  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
  22 #ifndef _EVENTS_H
  23 #define _EVENTS_H
  24
  25 #include <stdbool.h>
  26
  27 /**
  28  * High byte = Event class definition
  29  * Low byte  = Event ID
  30  */
  31
  32 #define EVENT_CLASS_DISK       0x0100
  33 #define EVENT_CLASS_PLAYBACK   0x0200
  34 #define EVENT_CLASS_BUFFERING  0x0400
  35 #define EVENT_CLASS_GUI        0x0800
  36
  37 /**
  38  * Because same playback events are used in mpeg.c and playback.c, define
  39  * them here to prevent cluttering and ifdefs.
  40  */
  41 enum {
  42     PLAYBACK_EVENT_TRACK_BUFFER = (EVENT_CLASS_PLAYBACK|1),
  43     PLAYBACK_EVENT_TRACK_FINISH,
  44     PLAYBACK_EVENT_TRACK_CHANGE,
  45 };
  46
  47
  48 bool add_event(unsigned short id, bool oneshot, void (*handler));
  49 void remove_event(unsigned short id, void (*handler));
  50 void send_event(unsigned short id, void *data);
  51
  52 #endif
  53