/* SPDX-License-Identifier: GPL-2.0-or-later */
|
#ifndef __SOUND_HWDEP_H
|
#define __SOUND_HWDEP_H
|
|
/*
|
* Hardware dependent layer
|
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
|
*/
|
|
#include <sound/asound.h>
|
#include <linux/poll.h>
|
#include <linux/android_kabi.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);
|
__poll_t (*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);
|
|
ANDROID_KABI_RESERVE(1);
|
};
|
|
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;
|
|
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 */
|
|
ANDROID_KABI_RESERVE(1);
|
};
|
|
extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
|
struct snd_hwdep **rhwdep);
|
|
#endif /* __SOUND_HWDEP_H */
|
