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 */ 77