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#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;

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

        char oss_dev[32];

        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 mutex open_mutex;

        int used;

        unsigned int dsp_loaded;

        unsigned int exclusive: 1;

};

extern int snd_hwdep_new(struct snd_card *card, char *id, int device,

                         struct snd_hwdep **rhwdep);

#endif /* __SOUND_HWDEP_H */