| 1 | #ifndef __SOUND_HWDEP_H
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| 2 | #define __SOUND_HWDEP_H
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| 3 |
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| 4 | /*
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| 5 | * Hardware dependent layer
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| 6 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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| 7 | *
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| 8 | *
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| 9 | * This program is free software; you can redistribute it and/or modify
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| 10 | * it under the terms of the GNU General Public License as published by
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| 11 | * the Free Software Foundation; either version 2 of the License, or
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| 12 | * (at your option) any later version.
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| 13 | *
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| 14 | * This program is distributed in the hope that it will be useful,
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | * GNU General Public License for more details.
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| 18 | *
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| 19 | * You should have received a copy of the GNU General Public License
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| 20 | * along with this program; if not, write to the Free Software
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| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 22 | *
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| 23 | */
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| 24 |
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| 25 | #include <sound/asound.h>
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| 26 | #include <linux/poll.h>
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| 27 |
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| 28 | struct snd_hwdep;
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| 29 |
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| 30 | struct snd_hwdep_ops {
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| 31 | long long (*llseek) (struct snd_hwdep *hw, struct file * file, long long offset, int orig);
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| 32 | long (*read) (struct snd_hwdep *hw, char __user *buf, long count, loff_t *offset);
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| 33 | long (*write) (struct snd_hwdep *hw, const char __user *buf, long count, loff_t *offset);
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| 34 | int (*open) (struct snd_hwdep * hw, struct file * file);
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| 35 | int (*release) (struct snd_hwdep *hw, struct file * file);
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| 36 | unsigned int (*poll) (struct snd_hwdep *hw, struct file * file, poll_table * wait);
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| 37 | int (*ioctl) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
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| 38 | int (*ioctl_compat) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
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| 39 | int (*mmap) (struct snd_hwdep *hw, struct file * file, struct vm_area_struct * vma);
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| 40 | int (*dsp_status) (struct snd_hwdep *hw, struct snd_hwdep_dsp_status *status);
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| 41 | int (*dsp_load) (struct snd_hwdep *hw, struct snd_hwdep_dsp_image *image);
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| 42 | };
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| 43 |
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| 44 | struct snd_hwdep {
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| 45 | struct snd_card *card;
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| 46 | int device;
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| 47 | char id[32];
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| 48 | char name[80];
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| 49 | int iface;
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| 50 |
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| 51 | #ifdef CONFIG_SND_OSSEMUL
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| 52 | char oss_dev[32];
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| 53 | int oss_type;
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| 54 | int ossreg;
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| 55 | #endif
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| 56 |
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| 57 | struct snd_hwdep_ops ops;
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| 58 | wait_queue_head_t open_wait;
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| 59 | void *private_data;
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| 60 | void (*private_free) (struct snd_hwdep *hwdep);
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| 61 |
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| 62 | struct semaphore open_mutex;
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| 63 | int used;
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| 64 | unsigned int dsp_loaded;
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| 65 | unsigned int exclusive: 1;
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| 66 | };
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| 67 |
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| 68 | extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
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| 69 | struct snd_hwdep **rhwdep);
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| 70 |
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| 71 | #endif /* __SOUND_HWDEP_H */
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