blob: 043876348fa1b02dbcf782638b6062cabd28f928 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __SOUND_HWDEP_H
2#define __SOUND_HWDEP_H
3
4/*
5 * Hardware dependent layer
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#include <sound/asound.h>
26#include <linux/poll.h>
27
28typedef enum sndrv_hwdep_iface snd_hwdep_iface_t;
29typedef struct sndrv_hwdep_info snd_hwdep_info_t;
30typedef struct sndrv_hwdep_dsp_status snd_hwdep_dsp_status_t;
31typedef struct sndrv_hwdep_dsp_image snd_hwdep_dsp_image_t;
32
33typedef struct _snd_hwdep_ops {
34 long long (*llseek) (snd_hwdep_t *hw, struct file * file, long long offset, int orig);
35 long (*read) (snd_hwdep_t * hw, char __user *buf, long count, loff_t *offset);
36 long (*write) (snd_hwdep_t * hw, const char __user *buf, long count, loff_t *offset);
37 int (*open) (snd_hwdep_t * hw, struct file * file);
38 int (*release) (snd_hwdep_t * hw, struct file * file);
39 unsigned int (*poll) (snd_hwdep_t * hw, struct file * file, poll_table * wait);
40 int (*ioctl) (snd_hwdep_t * hw, struct file * file, unsigned int cmd, unsigned long arg);
41 int (*ioctl_compat) (snd_hwdep_t * hw, struct file * file, unsigned int cmd, unsigned long arg);
42 int (*mmap) (snd_hwdep_t * hw, struct file * file, struct vm_area_struct * vma);
43 int (*dsp_status) (snd_hwdep_t * hw, snd_hwdep_dsp_status_t * status);
44 int (*dsp_load) (snd_hwdep_t * hw, snd_hwdep_dsp_image_t * image);
45} snd_hwdep_ops_t;
46
47struct _snd_hwdep {
48 snd_card_t *card;
49 int device;
50 char id[32];
51 char name[80];
52 int iface;
53
54#ifdef CONFIG_SND_OSSEMUL
55 char oss_dev[32];
56 int oss_type;
57 int ossreg;
58#endif
59
60 snd_hwdep_ops_t ops;
61 wait_queue_head_t open_wait;
62 void *private_data;
63 void (*private_free) (snd_hwdep_t *hwdep);
64
65 struct semaphore open_mutex;
66 int used;
67 unsigned int dsp_loaded;
68 unsigned int exclusive: 1;
69};
70
71extern int snd_hwdep_new(snd_card_t * card, char *id, int device, snd_hwdep_t ** rhwdep);
72
73#endif /* __SOUND_HWDEP_H */