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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __SOUND_HWDEP_H
2#define __SOUND_HWDEP_H
3
4/*
5 * Hardware dependent layer
Jaroslav Kyselac1017a42007-10-15 09:50:19 +02006 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 *
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#include <sound/asound.h>
26#include <linux/poll.h>
27
Takashi Iwaid9a98de2005-11-17 13:58:21 +010028struct snd_hwdep;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
Takashi Iwaid9a98de2005-11-17 13:58:21 +010030struct snd_hwdep_ops {
31 long long (*llseek) (struct snd_hwdep *hw, struct file * file, long long offset, int orig);
32 long (*read) (struct snd_hwdep *hw, char __user *buf, long count, loff_t *offset);
33 long (*write) (struct snd_hwdep *hw, const char __user *buf, long count, loff_t *offset);
34 int (*open) (struct snd_hwdep * hw, struct file * file);
35 int (*release) (struct snd_hwdep *hw, struct file * file);
36 unsigned int (*poll) (struct snd_hwdep *hw, struct file * file, poll_table * wait);
37 int (*ioctl) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
38 int (*ioctl_compat) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
39 int (*mmap) (struct snd_hwdep *hw, struct file * file, struct vm_area_struct * vma);
40 int (*dsp_status) (struct snd_hwdep *hw, struct snd_hwdep_dsp_status *status);
41 int (*dsp_load) (struct snd_hwdep *hw, struct snd_hwdep_dsp_image *image);
42};
Linus Torvalds1da177e2005-04-16 15:20:36 -070043
Takashi Iwaid9a98de2005-11-17 13:58:21 +010044struct snd_hwdep {
45 struct snd_card *card;
Clemens Ladischf87135f2005-11-20 14:06:59 +010046 struct list_head list;
Linus Torvalds1da177e2005-04-16 15:20:36 -070047 int device;
48 char id[32];
49 char name[80];
50 int iface;
51
52#ifdef CONFIG_SND_OSSEMUL
53 char oss_dev[32];
54 int oss_type;
55 int ossreg;
56#endif
57
Takashi Iwaid9a98de2005-11-17 13:58:21 +010058 struct snd_hwdep_ops ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 wait_queue_head_t open_wait;
60 void *private_data;
Takashi Iwaid9a98de2005-11-17 13:58:21 +010061 void (*private_free) (struct snd_hwdep *hwdep);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Ingo Molnar1a60d4c2006-01-16 16:29:08 +010063 struct mutex open_mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 int used;
65 unsigned int dsp_loaded;
66 unsigned int exclusive: 1;
67};
68
Takashi Iwaid9a98de2005-11-17 13:58:21 +010069extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
70 struct snd_hwdep **rhwdep);
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72#endif /* __SOUND_HWDEP_H */