2005-04-17 00:20:36 +02:00
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#ifndef __SOUND_CORE_H
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#define __SOUND_CORE_H
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/*
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* Main header file for the ALSA driver
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* Copyright (c) 1994-2001 by Jaroslav Kysela <perex@suse.cz>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/sched.h> /* wake_up() */
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2006-01-16 16:29:08 +01:00
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#include <linux/mutex.h> /* struct mutex */
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2005-04-17 00:20:36 +02:00
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#include <linux/rwsem.h> /* struct rw_semaphore */
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#include <linux/pm.h> /* pm_message_t */
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/* forward declarations */
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#ifdef CONFIG_PCI
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struct pci_dev;
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#endif
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#ifdef CONFIG_SBUS
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struct sbus_dev;
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#endif
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/* device allocation stuff */
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#define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000
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2005-11-17 13:51:18 +01:00
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typedef int __bitwise snd_device_type_t;
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#define SNDRV_DEV_TOPLEVEL ((__force snd_device_type_t) 0)
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#define SNDRV_DEV_CONTROL ((__force snd_device_type_t) 1)
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#define SNDRV_DEV_LOWLEVEL_PRE ((__force snd_device_type_t) 2)
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#define SNDRV_DEV_LOWLEVEL_NORMAL ((__force snd_device_type_t) 0x1000)
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#define SNDRV_DEV_PCM ((__force snd_device_type_t) 0x1001)
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#define SNDRV_DEV_RAWMIDI ((__force snd_device_type_t) 0x1002)
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#define SNDRV_DEV_TIMER ((__force snd_device_type_t) 0x1003)
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#define SNDRV_DEV_SEQUENCER ((__force snd_device_type_t) 0x1004)
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#define SNDRV_DEV_HWDEP ((__force snd_device_type_t) 0x1005)
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#define SNDRV_DEV_INFO ((__force snd_device_type_t) 0x1006)
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#define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007)
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#define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008)
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#define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000)
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typedef int __bitwise snd_device_state_t;
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#define SNDRV_DEV_BUILD ((__force snd_device_state_t) 0)
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#define SNDRV_DEV_REGISTERED ((__force snd_device_state_t) 1)
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#define SNDRV_DEV_DISCONNECTED ((__force snd_device_state_t) 2)
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typedef int __bitwise snd_device_cmd_t;
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#define SNDRV_DEV_CMD_PRE ((__force snd_device_cmd_t) 0)
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#define SNDRV_DEV_CMD_NORMAL ((__force snd_device_cmd_t) 1)
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#define SNDRV_DEV_CMD_POST ((__force snd_device_cmd_t) 2)
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struct snd_device;
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struct snd_device_ops {
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int (*dev_free)(struct snd_device *dev);
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int (*dev_register)(struct snd_device *dev);
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int (*dev_disconnect)(struct snd_device *dev);
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};
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struct snd_device {
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struct list_head list; /* list of registered devices */
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struct snd_card *card; /* card which holds this device */
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snd_device_state_t state; /* state of the device */
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snd_device_type_t type; /* device type */
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void *device_data; /* device structure */
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2005-11-17 13:51:18 +01:00
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struct snd_device_ops *ops; /* operations */
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};
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2005-11-17 13:51:18 +01:00
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#define snd_device(n) list_entry(n, struct snd_device, list)
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2005-04-17 00:20:36 +02:00
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/* monitor files for graceful shutdown (hotplug) */
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struct snd_monitor_file {
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struct file *file;
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struct snd_monitor_file *next;
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};
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2005-06-29 19:31:06 +02:00
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struct snd_shutdown_f_ops; /* define it later in init.c */
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2005-04-17 00:20:36 +02:00
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/* main structure for soundcard */
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2005-11-17 13:51:18 +01:00
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struct snd_card {
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int number; /* number of soundcard (index to
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snd_cards) */
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char id[16]; /* id string of this card */
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char driver[16]; /* driver name */
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char shortname[32]; /* short name of this soundcard */
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char longname[80]; /* name of this soundcard */
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char mixername[80]; /* mixer name */
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char components[80]; /* card components delimited with
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space */
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2005-04-17 00:20:36 +02:00
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struct module *module; /* top-level module */
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void *private_data; /* private data for soundcard */
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void (*private_free) (struct snd_card *card); /* callback for freeing of
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private data */
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2005-04-17 00:20:36 +02:00
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struct list_head devices; /* devices */
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unsigned int last_numid; /* last used numeric ID */
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struct rw_semaphore controls_rwsem; /* controls list lock */
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rwlock_t ctl_files_rwlock; /* ctl_files list lock */
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int controls_count; /* count of all controls */
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int user_ctl_count; /* count of all user controls */
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struct list_head controls; /* all controls for this card */
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struct list_head ctl_files; /* active control files */
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2005-11-17 13:51:18 +01:00
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struct snd_info_entry *proc_root; /* root for soundcard specific files */
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struct snd_info_entry *proc_id; /* the card id */
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struct proc_dir_entry *proc_root_link; /* number link to real id */
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struct snd_monitor_file *files; /* all files associated to this card */
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2005-06-29 19:31:06 +02:00
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struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown
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state */
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2005-04-17 00:20:36 +02:00
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spinlock_t files_lock; /* lock the files for this card */
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int shutdown; /* this card is going down */
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2006-06-23 14:38:23 +02:00
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int free_on_last_close; /* free in context of file_release */
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2005-04-17 00:20:36 +02:00
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wait_queue_head_t shutdown_sleep;
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struct device *dev;
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#ifdef CONFIG_PM
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unsigned int power_state; /* power state */
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2006-01-16 16:29:08 +01:00
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struct mutex power_lock; /* power lock */
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2005-04-17 00:20:36 +02:00
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wait_queue_head_t power_sleep;
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#endif
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#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
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struct snd_mixer_oss *mixer_oss;
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int mixer_oss_change_count;
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#endif
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};
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#ifdef CONFIG_PM
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static inline void snd_power_lock(struct snd_card *card)
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{
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mutex_lock(&card->power_lock);
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}
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2005-11-17 13:51:18 +01:00
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static inline void snd_power_unlock(struct snd_card *card)
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{
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mutex_unlock(&card->power_lock);
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}
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static inline unsigned int snd_power_get_state(struct snd_card *card)
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{
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return card->power_state;
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}
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2005-11-17 13:51:18 +01:00
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static inline void snd_power_change_state(struct snd_card *card, unsigned int state)
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{
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card->power_state = state;
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wake_up(&card->power_sleep);
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}
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/* init.c */
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2006-03-27 12:38:07 +02:00
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int snd_power_wait(struct snd_card *card, unsigned int power_state);
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2005-06-29 19:31:06 +02:00
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2005-04-17 00:20:36 +02:00
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#else /* ! CONFIG_PM */
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#define snd_power_lock(card) do { (void)(card); } while (0)
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#define snd_power_unlock(card) do { (void)(card); } while (0)
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2006-04-02 23:37:36 +02:00
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static inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; }
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#define snd_power_get_state(card) SNDRV_CTL_POWER_D0
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#define snd_power_change_state(card, state) do { (void)(card); } while (0)
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#endif /* CONFIG_PM */
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2005-11-17 13:51:18 +01:00
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struct snd_minor {
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2005-11-20 14:03:48 +01:00
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int type; /* SNDRV_DEVICE_TYPE_XXX */
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int card; /* card number */
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int device; /* device number */
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2006-03-28 11:56:41 +02:00
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const struct file_operations *f_ops; /* file operations */
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void *private_data; /* private data for f_ops->open */
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};
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/* sound.c */
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2005-10-24 17:05:03 +02:00
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extern int snd_major;
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extern int snd_ecards_limit;
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void snd_request_card(int card);
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2005-11-20 14:03:48 +01:00
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int snd_register_device(int type, struct snd_card *card, int dev,
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const struct file_operations *f_ops, void *private_data,
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const char *name);
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int snd_unregister_device(int type, struct snd_card *card, int dev);
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void *snd_lookup_minor_data(unsigned int minor, int type);
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#ifdef CONFIG_SND_OSSEMUL
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int snd_register_oss_device(int type, struct snd_card *card, int dev,
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2006-03-28 11:56:41 +02:00
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const struct file_operations *f_ops, void *private_data,
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const char *name);
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2005-11-17 13:51:18 +01:00
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int snd_unregister_oss_device(int type, struct snd_card *card, int dev);
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void *snd_lookup_oss_minor_data(unsigned int minor, int type);
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#endif
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int snd_minor_info_init(void);
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int snd_minor_info_done(void);
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/* sound_oss.c */
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#ifdef CONFIG_SND_OSSEMUL
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int snd_minor_info_oss_init(void);
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int snd_minor_info_oss_done(void);
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#else
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#define snd_minor_info_oss_init() /*NOP*/
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#define snd_minor_info_oss_done() /*NOP*/
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#endif
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/* memory.c */
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int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
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int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);
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/* init.c */
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2005-11-17 13:51:18 +01:00
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extern struct snd_card *snd_cards[SNDRV_CARDS];
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int snd_card_locked(int card);
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#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
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#define SND_MIXER_OSS_NOTIFY_REGISTER 0
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#define SND_MIXER_OSS_NOTIFY_DISCONNECT 1
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#define SND_MIXER_OSS_NOTIFY_FREE 2
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extern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd);
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#endif
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2005-11-17 13:51:18 +01:00
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struct snd_card *snd_card_new(int idx, const char *id,
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struct module *module, int extra_size);
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int snd_card_disconnect(struct snd_card *card);
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int snd_card_free(struct snd_card *card);
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int snd_card_free_when_closed(struct snd_card *card);
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int snd_card_register(struct snd_card *card);
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int snd_card_info_init(void);
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int snd_card_info_done(void);
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2005-11-17 13:51:18 +01:00
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int snd_component_add(struct snd_card *card, const char *component);
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int snd_card_file_add(struct snd_card *card, struct file *file);
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int snd_card_file_remove(struct snd_card *card, struct file *file);
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2005-04-17 00:20:36 +02:00
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#ifndef snd_card_set_dev
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#define snd_card_set_dev(card,devptr) ((card)->dev = (devptr))
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#endif
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/* device.c */
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2005-11-17 13:51:18 +01:00
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int snd_device_new(struct snd_card *card, snd_device_type_t type,
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void *device_data, struct snd_device_ops *ops);
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int snd_device_register(struct snd_card *card, void *device_data);
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int snd_device_register_all(struct snd_card *card);
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int snd_device_disconnect(struct snd_card *card, void *device_data);
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int snd_device_disconnect_all(struct snd_card *card);
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int snd_device_free(struct snd_card *card, void *device_data);
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int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd);
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2005-04-17 00:20:36 +02:00
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/* isadma.c */
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2005-08-23 23:45:06 +02:00
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#ifdef CONFIG_ISA_DMA_API
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2005-04-17 00:20:36 +02:00
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#define DMA_MODE_NO_ENABLE 0x0100
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void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode);
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void snd_dma_disable(unsigned long dma);
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unsigned int snd_dma_pointer(unsigned long dma, unsigned int size);
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#endif
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/* misc.c */
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2005-10-11 17:28:58 +02:00
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struct resource;
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2005-10-10 11:56:31 +02:00
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void release_and_free_resource(struct resource *res);
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2005-04-17 00:20:36 +02:00
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#ifdef CONFIG_SND_VERBOSE_PRINTK
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void snd_verbose_printk(const char *file, int line, const char *format, ...)
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__attribute__ ((format (printf, 3, 4)));
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#endif
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#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
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void snd_verbose_printd(const char *file, int line, const char *format, ...)
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__attribute__ ((format (printf, 3, 4)));
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#endif
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/* --- */
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#ifdef CONFIG_SND_VERBOSE_PRINTK
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/**
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* snd_printk - printk wrapper
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* @fmt: format string
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*
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* Works like print() but prints the file and the line of the caller
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* when configured with CONFIG_SND_VERBOSE_PRINTK.
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*/
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#define snd_printk(fmt, args...) \
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snd_verbose_printk(__FILE__, __LINE__, fmt ,##args)
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#else
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#define snd_printk(fmt, args...) \
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printk(fmt ,##args)
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#endif
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#ifdef CONFIG_SND_DEBUG
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#define __ASTRING__(x) #x
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#ifdef CONFIG_SND_VERBOSE_PRINTK
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/**
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* snd_printd - debug printk
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2006-01-10 05:53:55 +01:00
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* @fmt: format string
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2005-04-17 00:20:36 +02:00
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*
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* Compiled only when Works like snd_printk() for debugging purpose.
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* Ignored when CONFIG_SND_DEBUG is not set.
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*/
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#define snd_printd(fmt, args...) \
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snd_verbose_printd(__FILE__, __LINE__, fmt ,##args)
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#else
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#define snd_printd(fmt, args...) \
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printk(fmt ,##args)
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#endif
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/**
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2005-06-29 19:31:06 +02:00
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* snd_assert - run-time assertion macro
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2005-04-17 00:20:36 +02:00
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* @expr: expression
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*
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* This macro checks the expression in run-time and invokes the commands
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* given in the rest arguments if the assertion is failed.
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* When CONFIG_SND_DEBUG is not set, the expression is executed but
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* not checked.
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*/
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2005-10-10 11:46:31 +02:00
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#define snd_assert(expr, args...) do { \
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if (unlikely(!(expr))) { \
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snd_printk(KERN_ERR "BUG? (%s)\n", __ASTRING__(expr)); \
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dump_stack(); \
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args; \
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} \
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2005-04-17 00:20:36 +02:00
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} while (0)
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2005-10-10 11:46:31 +02:00
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#define snd_BUG() do { \
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snd_printk(KERN_ERR "BUG?\n"); \
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dump_stack(); \
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2005-04-17 00:20:36 +02:00
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} while (0)
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#else /* !CONFIG_SND_DEBUG */
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#define snd_printd(fmt, args...) /* nothing */
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#define snd_assert(expr, args...) (void)(expr)
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2005-10-10 11:46:31 +02:00
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#define snd_BUG() /* nothing */
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2005-04-17 00:20:36 +02:00
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#endif /* CONFIG_SND_DEBUG */
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#ifdef CONFIG_SND_DEBUG_DETECT
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/**
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* snd_printdd - debug printk
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* @format: format string
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*
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* Compiled only when Works like snd_printk() for debugging purpose.
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* Ignored when CONFIG_SND_DEBUG_DETECT is not set.
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*/
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#define snd_printdd(format, args...) snd_printk(format, ##args)
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#else
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#define snd_printdd(format, args...) /* nothing */
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#endif
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#define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */
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/* for easier backward-porting */
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#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
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#ifndef gameport_set_dev_parent
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#define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev))
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#define gameport_set_port_data(gp,r) ((gp)->port_data = (r))
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#define gameport_get_port_data(gp) (gp)->port_data
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#endif
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#endif
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2005-11-17 13:51:18 +01:00
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#include "typedefs.h"
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2005-04-17 00:20:36 +02:00
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#endif /* __SOUND_CORE_H */
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