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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@perex.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 IS_ENABLED(CONFIG_SND_MIXER_OSS) | |
26 | ||
27 | #define SNDRV_OSS_MAX_MIXERS 32 | |
28 | ||
29 | struct snd_mixer_oss_file; | |
30 | ||
31 | struct snd_mixer_oss_slot { | |
32 | int number; | |
33 | unsigned int stereo: 1; | |
34 | int (*get_volume)(struct snd_mixer_oss_file *fmixer, | |
35 | struct snd_mixer_oss_slot *chn, | |
36 | int *left, int *right); | |
37 | int (*put_volume)(struct snd_mixer_oss_file *fmixer, | |
38 | struct snd_mixer_oss_slot *chn, | |
39 | int left, int right); | |
40 | int (*get_recsrc)(struct snd_mixer_oss_file *fmixer, | |
41 | struct snd_mixer_oss_slot *chn, | |
42 | int *active); | |
43 | int (*put_recsrc)(struct snd_mixer_oss_file *fmixer, | |
44 | struct snd_mixer_oss_slot *chn, | |
45 | int active); | |
46 | unsigned long private_value; | |
47 | void *private_data; | |
48 | void (*private_free)(struct snd_mixer_oss_slot *slot); | |
49 | int volume[2]; | |
50 | }; | |
51 | ||
52 | struct snd_mixer_oss { | |
53 | struct snd_card *card; | |
54 | char id[16]; | |
55 | char name[32]; | |
56 | struct snd_mixer_oss_slot slots[SNDRV_OSS_MAX_MIXERS]; /* OSS mixer slots */ | |
57 | unsigned int mask_recsrc; /* exclusive recsrc mask */ | |
58 | int (*get_recsrc)(struct snd_mixer_oss_file *fmixer, | |
59 | unsigned int *active_index); | |
60 | int (*put_recsrc)(struct snd_mixer_oss_file *fmixer, | |
61 | unsigned int active_index); | |
62 | void *private_data_recsrc; | |
63 | void (*private_free_recsrc)(struct snd_mixer_oss *mixer); | |
64 | struct mutex reg_mutex; | |
65 | struct snd_info_entry *proc_entry; | |
66 | int oss_dev_alloc; | |
67 | /* --- */ | |
68 | int oss_recsrc; | |
69 | }; | |
70 | ||
71 | struct snd_mixer_oss_file { | |
72 | struct snd_card *card; | |
73 | struct snd_mixer_oss *mixer; | |
74 | }; | |
75 | ||
76 | int snd_mixer_oss_ioctl_card(struct snd_card *card, | |
77 | unsigned int cmd, unsigned long arg); | |
78 | ||
79 | #endif /* CONFIG_SND_MIXER_OSS */ | |
80 | ||
81 | #endif /* __SOUND_MIXER_OSS_H */ |