84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
#ifndef __SOUND_HWDEP_H
|
|
#define __SOUND_HWDEP_H
|
|
|
|
/*
|
|
* Hardware dependent layer
|
|
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
|
|
*
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <sound/asound.h>
|
|
#include <linux/poll.h>
|
|
|
|
struct snd_hwdep;
|
|
|
|
/* hwdep file ops; all ops can be NULL */
|
|
struct snd_hwdep_ops {
|
|
long long (*llseek)(struct snd_hwdep *hw, struct file *file,
|
|
long long offset, int orig);
|
|
long (*read)(struct snd_hwdep *hw, char __user *buf,
|
|
long count, loff_t *offset);
|
|
long (*write)(struct snd_hwdep *hw, const char __user *buf,
|
|
long count, loff_t *offset);
|
|
int (*open)(struct snd_hwdep *hw, struct file * file);
|
|
int (*release)(struct snd_hwdep *hw, struct file * file);
|
|
unsigned int (*poll)(struct snd_hwdep *hw, struct file *file,
|
|
poll_table *wait);
|
|
int (*ioctl)(struct snd_hwdep *hw, struct file *file,
|
|
unsigned int cmd, unsigned long arg);
|
|
int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file,
|
|
unsigned int cmd, unsigned long arg);
|
|
int (*mmap)(struct snd_hwdep *hw, struct file *file,
|
|
struct vm_area_struct *vma);
|
|
int (*dsp_status)(struct snd_hwdep *hw,
|
|
struct snd_hwdep_dsp_status *status);
|
|
int (*dsp_load)(struct snd_hwdep *hw,
|
|
struct snd_hwdep_dsp_image *image);
|
|
};
|
|
|
|
struct snd_hwdep {
|
|
struct snd_card *card;
|
|
struct list_head list;
|
|
int device;
|
|
char id[32];
|
|
char name[80];
|
|
int iface;
|
|
|
|
#ifdef CONFIG_SND_OSSEMUL
|
|
int oss_type;
|
|
int ossreg;
|
|
#endif
|
|
|
|
struct snd_hwdep_ops ops;
|
|
wait_queue_head_t open_wait;
|
|
void *private_data;
|
|
void (*private_free) (struct snd_hwdep *hwdep);
|
|
struct device *dev;
|
|
const struct attribute_group **groups;
|
|
|
|
struct mutex open_mutex;
|
|
int used; /* reference counter */
|
|
unsigned int dsp_loaded; /* bit fields of loaded dsp indices */
|
|
unsigned int exclusive:1; /* exclusive access mode */
|
|
};
|
|
|
|
extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
|
|
struct snd_hwdep **rhwdep);
|
|
|
|
#endif /* __SOUND_HWDEP_H */
|