diff options
Diffstat (limited to 'include/sound/hwdep.h')
| -rw-r--r-- | include/sound/hwdep.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h new file mode 100644 index 000000000000..043876348fa1 --- /dev/null +++ b/include/sound/hwdep.h @@ -0,0 +1,73 @@ +#ifndef __SOUND_HWDEP_H +#define __SOUND_HWDEP_H + +/* + * Hardware dependent layer + * Copyright (c) by Jaroslav Kysela <perex@suse.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> + +typedef enum sndrv_hwdep_iface snd_hwdep_iface_t; +typedef struct sndrv_hwdep_info snd_hwdep_info_t; +typedef struct sndrv_hwdep_dsp_status snd_hwdep_dsp_status_t; +typedef struct sndrv_hwdep_dsp_image snd_hwdep_dsp_image_t; + +typedef struct _snd_hwdep_ops { + long long (*llseek) (snd_hwdep_t *hw, struct file * file, long long offset, int orig); + long (*read) (snd_hwdep_t * hw, char __user *buf, long count, loff_t *offset); + long (*write) (snd_hwdep_t * hw, const char __user *buf, long count, loff_t *offset); + int (*open) (snd_hwdep_t * hw, struct file * file); + int (*release) (snd_hwdep_t * hw, struct file * file); + unsigned int (*poll) (snd_hwdep_t * hw, struct file * file, poll_table * wait); + int (*ioctl) (snd_hwdep_t * hw, struct file * file, unsigned int cmd, unsigned long arg); + int (*ioctl_compat) (snd_hwdep_t * hw, struct file * file, unsigned int cmd, unsigned long arg); + int (*mmap) (snd_hwdep_t * hw, struct file * file, struct vm_area_struct * vma); + int (*dsp_status) (snd_hwdep_t * hw, snd_hwdep_dsp_status_t * status); + int (*dsp_load) (snd_hwdep_t * hw, snd_hwdep_dsp_image_t * image); +} snd_hwdep_ops_t; + +struct _snd_hwdep { + snd_card_t *card; + int device; + char id[32]; + char name[80]; + int iface; + +#ifdef CONFIG_SND_OSSEMUL + char oss_dev[32]; + int oss_type; + int ossreg; +#endif + + snd_hwdep_ops_t ops; + wait_queue_head_t open_wait; + void *private_data; + void (*private_free) (snd_hwdep_t *hwdep); + + struct semaphore open_mutex; + int used; + unsigned int dsp_loaded; + unsigned int exclusive: 1; +}; + +extern int snd_hwdep_new(snd_card_t * card, char *id, int device, snd_hwdep_t ** rhwdep); + +#endif /* __SOUND_HWDEP_H */ |