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  * 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
  20 #ifndef _EVENTS_H
  21 #define _EVENTS_H
  22
  23 #include <stdbool.h>
  24
  25 /**
  26  * High byte = Event class definition
  27  * Low byte  = Event ID
  28  */
  29
  30 #define EVENT_CLASS_DISK       0x0100
  31 #define EVENT_CLASS_PLAYBACK   0x0200
  32 #define EVENT_CLASS_BUFFERING  0x0400
  33
  34 /**
  35  * Because same playback events are used in mpeg.c and playback.c, define
  36  * them here to prevent cluttering and ifdefs.
  37  */
  38 enum {
  39     PLAYBACK_EVENT_TRACK_BUFFER = (EVENT_CLASS_PLAYBACK|1),
  40     PLAYBACK_EVENT_TRACK_FINISH,
  41     PLAYBACK_EVENT_TRACK_CHANGE,
  42 };
  43
  44
  45 bool add_event(unsigned short id, bool oneshot, void (*handler));
  46 void remove_event(unsigned short id, void (*handler));
  47 void send_event(unsigned short id, void *data);
  48
  49 #endif
  50