include/sound/mixer_oss.h

   1 #ifndef __SOUND_MIXER_OSS_H
   2 #define __SOUND_MIXER_OSS_H
   3
   4 /*
   5  *  OSS MIXER API
   6  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   7  *
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  *
  23  */
  24
  25 #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
  26
  27 typedef struct _snd_oss_mixer_slot snd_mixer_oss_slot_t;
  28 typedef struct _snd_oss_file snd_mixer_oss_file_t;
  29
  30 typedef int (*snd_mixer_oss_get_volume_t)(snd_mixer_oss_file_t *fmixer, snd_mixer_oss_slot_t *chn, int *left, int *right);
  31 typedef int (*snd_mixer_oss_put_volume_t)(snd_mixer_oss_file_t *fmixer, snd_mixer_oss_slot_t *chn, int left, int right);
  32 typedef int (*snd_mixer_oss_get_recsrc_t)(snd_mixer_oss_file_t *fmixer, snd_mixer_oss_slot_t *chn, int *active);
  33 typedef int (*snd_mixer_oss_put_recsrc_t)(snd_mixer_oss_file_t *fmixer, snd_mixer_oss_slot_t *chn, int active);
  34 typedef int (*snd_mixer_oss_get_recsrce_t)(snd_mixer_oss_file_t *fmixer, unsigned int *active_index);
  35 typedef int (*snd_mixer_oss_put_recsrce_t)(snd_mixer_oss_file_t *fmixer, unsigned int active_index);
  36
  37 #define SNDRV_OSS_MAX_MIXERS    32
  38
  39 struct _snd_oss_mixer_slot {
  40         int number;
  41         unsigned int stereo: 1;
  42         snd_mixer_oss_get_volume_t get_volume;
  43         snd_mixer_oss_put_volume_t put_volume;
  44         snd_mixer_oss_get_recsrc_t get_recsrc;
  45         snd_mixer_oss_put_recsrc_t put_recsrc;
  46         unsigned long private_value;
  47         void *private_data;
  48         void (*private_free)(snd_mixer_oss_slot_t *slot);
  49         int volume[2];
  50 };
  51
  52 struct _snd_oss_mixer {
  53         snd_card_t *card;
  54         char id[16];
  55         char name[32];
  56         snd_mixer_oss_slot_t slots[SNDRV_OSS_MAX_MIXERS]; /* OSS mixer slots */
  57         unsigned int mask_recsrc;               /* exclusive recsrc mask */
  58         snd_mixer_oss_get_recsrce_t get_recsrc;
  59         snd_mixer_oss_put_recsrce_t put_recsrc;
  60         void *private_data_recsrc;
  61         void (*private_free_recsrc)(snd_mixer_oss_t *mixer);
  62         struct semaphore reg_mutex;
  63         snd_info_entry_t *proc_entry;
  64         int oss_dev_alloc;
  65         /* --- */
  66         int oss_recsrc;
  67 };
  68
  69 struct _snd_oss_file {
  70         snd_card_t *card;
  71         snd_mixer_oss_t *mixer;
  72 };
  73
  74 #endif /* CONFIG_SND_MIXER_OSS */
  75
  76 #endif /* __SOUND_MIXER_OSS_H */