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- #ifndef __SOUND_CORE_H
- #define __SOUND_CORE_H
-
- /*
- * Main header file for the ALSA driver
- * Copyright (c) 1994-2001 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 <linux/sched.h> /* wake_up() */
- #include <asm/semaphore.h> /* struct semaphore */
- #include <linux/rwsem.h> /* struct rw_semaphore */
- #include <linux/workqueue.h> /* struct workqueue_struct */
- #include <linux/pm.h> /* pm_message_t */
-
- /* Typedef's */
- typedef struct sndrv_interval snd_interval_t;
- typedef enum sndrv_card_type snd_card_type;
- typedef struct sndrv_xferi snd_xferi_t;
- typedef struct sndrv_xfern snd_xfern_t;
- typedef struct sndrv_xferv snd_xferv_t;
-
- /* forward declarations */
- #ifdef CONFIG_PCI
- struct pci_dev;
- #endif
- #ifdef CONFIG_SBUS
- struct sbus_dev;
- #endif
-
- /* device allocation stuff */
-
- #define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000
-
- typedef enum {
- SNDRV_DEV_TOPLEVEL = (0*SNDRV_DEV_TYPE_RANGE_SIZE),
- SNDRV_DEV_CONTROL,
- SNDRV_DEV_LOWLEVEL_PRE,
- SNDRV_DEV_LOWLEVEL_NORMAL = (1*SNDRV_DEV_TYPE_RANGE_SIZE),
- SNDRV_DEV_PCM,
- SNDRV_DEV_RAWMIDI,
- SNDRV_DEV_TIMER,
- SNDRV_DEV_SEQUENCER,
- SNDRV_DEV_HWDEP,
- SNDRV_DEV_INFO,
- SNDRV_DEV_BUS,
- SNDRV_DEV_CODEC,
- SNDRV_DEV_LOWLEVEL = (2*SNDRV_DEV_TYPE_RANGE_SIZE)
- } snd_device_type_t;
-
- typedef enum {
- SNDRV_DEV_BUILD,
- SNDRV_DEV_REGISTERED,
- SNDRV_DEV_DISCONNECTED
- } snd_device_state_t;
-
- typedef enum {
- SNDRV_DEV_CMD_PRE = 0,
- SNDRV_DEV_CMD_NORMAL = 1,
- SNDRV_DEV_CMD_POST = 2
- } snd_device_cmd_t;
-
- typedef struct _snd_card snd_card_t;
- typedef struct _snd_device snd_device_t;
-
- typedef int (snd_dev_free_t)(snd_device_t *device);
- typedef int (snd_dev_register_t)(snd_device_t *device);
- typedef int (snd_dev_disconnect_t)(snd_device_t *device);
- typedef int (snd_dev_unregister_t)(snd_device_t *device);
-
- typedef struct {
- snd_dev_free_t *dev_free;
- snd_dev_register_t *dev_register;
- snd_dev_disconnect_t *dev_disconnect;
- snd_dev_unregister_t *dev_unregister;
- } snd_device_ops_t;
-
- struct _snd_device {
- struct list_head list; /* list of registered devices */
- snd_card_t *card; /* card which holds this device */
- snd_device_state_t state; /* state of the device */
- snd_device_type_t type; /* device type */
- void *device_data; /* device structure */
- snd_device_ops_t *ops; /* operations */
- };
-
- #define snd_device(n) list_entry(n, snd_device_t, list)
-
- /* various typedefs */
-
- typedef struct snd_info_entry snd_info_entry_t;
- typedef struct _snd_pcm snd_pcm_t;
- typedef struct _snd_pcm_str snd_pcm_str_t;
- typedef struct _snd_pcm_substream snd_pcm_substream_t;
- typedef struct _snd_mixer snd_kmixer_t;
- typedef struct _snd_rawmidi snd_rawmidi_t;
- typedef struct _snd_ctl_file snd_ctl_file_t;
- typedef struct _snd_kcontrol snd_kcontrol_t;
- typedef struct _snd_timer snd_timer_t;
- typedef struct _snd_timer_instance snd_timer_instance_t;
- typedef struct _snd_hwdep snd_hwdep_t;
- #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
- typedef struct _snd_oss_mixer snd_mixer_oss_t;
- #endif
-
- /* monitor files for graceful shutdown (hotplug) */
-
- struct snd_monitor_file {
- struct file *file;
- struct snd_monitor_file *next;
- };
-
- struct snd_shutdown_f_ops; /* define it later in init.c */
-
- /* main structure for soundcard */
-
- struct _snd_card {
- int number; /* number of soundcard (index to
- snd_cards) */
-
- char id[16]; /* id string of this card */
- char driver[16]; /* driver name */
- char shortname[32]; /* short name of this soundcard */
- char longname[80]; /* name of this soundcard */
- char mixername[80]; /* mixer name */
- char components[80]; /* card components delimited with
- space */
- struct module *module; /* top-level module */
-
- void *private_data; /* private data for soundcard */
- void (*private_free) (snd_card_t *card); /* callback for freeing of
- private data */
- struct list_head devices; /* devices */
-
- unsigned int last_numid; /* last used numeric ID */
- struct rw_semaphore controls_rwsem; /* controls list lock */
- rwlock_t ctl_files_rwlock; /* ctl_files list lock */
- int controls_count; /* count of all controls */
- int user_ctl_count; /* count of all user controls */
- struct list_head controls; /* all controls for this card */
- struct list_head ctl_files; /* active control files */
-
- snd_info_entry_t *proc_root; /* root for soundcard specific files */
- snd_info_entry_t *proc_id; /* the card id */
- struct proc_dir_entry *proc_root_link; /* number link to real id */
-
- struct snd_monitor_file *files; /* all files associated to this card */
- struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown
- state */
- spinlock_t files_lock; /* lock the files for this card */
- int shutdown; /* this card is going down */
- wait_queue_head_t shutdown_sleep;
- struct work_struct free_workq; /* for free in workqueue */
- struct device *dev;
- #ifdef CONFIG_SND_GENERIC_DRIVER
- struct snd_generic_device *generic_dev;
- #endif
-
- #ifdef CONFIG_PM
- int (*pm_suspend)(snd_card_t *card, pm_message_t state);
- int (*pm_resume)(snd_card_t *card);
- void *pm_private_data;
- unsigned int power_state; /* power state */
- struct semaphore power_lock; /* power lock */
- wait_queue_head_t power_sleep;
- #endif
-
- #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
- snd_mixer_oss_t *mixer_oss;
- int mixer_oss_change_count;
- #endif
- };
-
- #ifdef CONFIG_PM
- static inline void snd_power_lock(snd_card_t *card)
- {
- down(&card->power_lock);
- }
-
- static inline void snd_power_unlock(snd_card_t *card)
- {
- up(&card->power_lock);
- }
-
- static inline unsigned int snd_power_get_state(snd_card_t *card)
- {
- return card->power_state;
- }
-
- static inline void snd_power_change_state(snd_card_t *card, unsigned int state)
- {
- card->power_state = state;
- wake_up(&card->power_sleep);
- }
-
- /* init.c */
- int snd_power_wait(snd_card_t *card, unsigned int power_state, struct file *file);
-
- int snd_card_set_pm_callback(snd_card_t *card,
- int (*suspend)(snd_card_t *, pm_message_t),
- int (*resume)(snd_card_t *),
- void *private_data);
- int snd_card_set_generic_pm_callback(snd_card_t *card,
- int (*suspend)(snd_card_t *, pm_message_t),
- int (*resume)(snd_card_t *),
- void *private_data);
- #define snd_card_set_isa_pm_callback(card,suspend,resume,data) \
- snd_card_set_generic_pm_callback(card, suspend, resume, data)
- struct pci_dev;
- int snd_card_pci_suspend(struct pci_dev *dev, pm_message_t state);
- int snd_card_pci_resume(struct pci_dev *dev);
- #define SND_PCI_PM_CALLBACKS \
- .suspend = snd_card_pci_suspend, .resume = snd_card_pci_resume
-
- #else /* ! CONFIG_PM */
-
- #define snd_power_lock(card) do { (void)(card); } while (0)
- #define snd_power_unlock(card) do { (void)(card); } while (0)
- static inline int snd_power_wait(snd_card_t *card, unsigned int state, struct file *file) { return 0; }
- #define snd_power_get_state(card) SNDRV_CTL_POWER_D0
- #define snd_power_change_state(card, state) do { (void)(card); } while (0)
- #define snd_card_set_pm_callback(card,suspend,resume,data)
- #define snd_card_set_generic_pm_callback(card,suspend,resume,data)
- #define snd_card_set_isa_pm_callback(card,suspend,resume,data)
- #define SND_PCI_PM_CALLBACKS
-
- #endif /* CONFIG_PM */
-
- struct _snd_minor {
- struct list_head list; /* list of all minors per card */
- int number; /* minor number */
- int device; /* device number */
- const char *comment; /* for /proc/asound/devices */
- struct file_operations *f_ops; /* file operations */
- char name[0]; /* device name (keep at the end of
- structure) */
- };
-
- typedef struct _snd_minor snd_minor_t;
-
- /* sound.c */
-
- extern int snd_major;
- extern int snd_ecards_limit;
-
- void snd_request_card(int card);
-
- int snd_register_device(int type, snd_card_t *card, int dev, snd_minor_t *reg, const char *name);
- int snd_unregister_device(int type, snd_card_t *card, int dev);
-
- #ifdef CONFIG_SND_OSSEMUL
- int snd_register_oss_device(int type, snd_card_t *card, int dev, snd_minor_t *reg, const char *name);
- int snd_unregister_oss_device(int type, snd_card_t *card, int dev);
- #endif
-
- int snd_minor_info_init(void);
- int snd_minor_info_done(void);
-
- /* sound_oss.c */
-
- #ifdef CONFIG_SND_OSSEMUL
- int snd_minor_info_oss_init(void);
- int snd_minor_info_oss_done(void);
- int snd_oss_init_module(void);
- #else
- #define snd_minor_info_oss_init() /*NOP*/
- #define snd_minor_info_oss_done() /*NOP*/
- #define snd_oss_init_module() 0
- #endif
-
- /* memory.c */
-
- int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
- int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);
-
- /* init.c */
-
- extern unsigned int snd_cards_lock;
- extern snd_card_t *snd_cards[SNDRV_CARDS];
- extern rwlock_t snd_card_rwlock;
- #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
- #define SND_MIXER_OSS_NOTIFY_REGISTER 0
- #define SND_MIXER_OSS_NOTIFY_DISCONNECT 1
- #define SND_MIXER_OSS_NOTIFY_FREE 2
- extern int (*snd_mixer_oss_notify_callback)(snd_card_t *card, int cmd);
- #endif
-
- snd_card_t *snd_card_new(int idx, const char *id,
- struct module *module, int extra_size);
- int snd_card_disconnect(snd_card_t *card);
- int snd_card_free(snd_card_t *card);
- int snd_card_free_in_thread(snd_card_t *card);
- int snd_card_register(snd_card_t *card);
- int snd_card_info_init(void);
- int snd_card_info_done(void);
- int snd_component_add(snd_card_t *card, const char *component);
- int snd_card_file_add(snd_card_t *card, struct file *file);
- int snd_card_file_remove(snd_card_t *card, struct file *file);
-
- #ifndef snd_card_set_dev
- #define snd_card_set_dev(card,devptr) ((card)->dev = (devptr))
- #endif
- /* register a generic device (for ISA, etc) */
- int snd_card_set_generic_dev(snd_card_t *card);
-
- /* device.c */
-
- int snd_device_new(snd_card_t *card, snd_device_type_t type,
- void *device_data, snd_device_ops_t *ops);
- int snd_device_register(snd_card_t *card, void *device_data);
- int snd_device_register_all(snd_card_t *card);
- int snd_device_disconnect(snd_card_t *card, void *device_data);
- int snd_device_disconnect_all(snd_card_t *card);
- int snd_device_free(snd_card_t *card, void *device_data);
- int snd_device_free_all(snd_card_t *card, snd_device_cmd_t cmd);
-
- /* isadma.c */
-
- #ifdef CONFIG_ISA_DMA_API
- #define DMA_MODE_NO_ENABLE 0x0100
-
- void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode);
- void snd_dma_disable(unsigned long dma);
- unsigned int snd_dma_pointer(unsigned long dma, unsigned int size);
- #endif
-
- /* misc.c */
- struct resource;
- void release_and_free_resource(struct resource *res);
-
- #ifdef CONFIG_SND_VERBOSE_PRINTK
- void snd_verbose_printk(const char *file, int line, const char *format, ...)
- __attribute__ ((format (printf, 3, 4)));
- #endif
- #if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
- void snd_verbose_printd(const char *file, int line, const char *format, ...)
- __attribute__ ((format (printf, 3, 4)));
- #endif
-
- /* --- */
-
- #ifdef CONFIG_SND_VERBOSE_PRINTK
- /**
- * snd_printk - printk wrapper
- * @fmt: format string
- *
- * Works like print() but prints the file and the line of the caller
- * when configured with CONFIG_SND_VERBOSE_PRINTK.
- */
- #define snd_printk(fmt, args...) \
- snd_verbose_printk(__FILE__, __LINE__, fmt ,##args)
- #else
- #define snd_printk(fmt, args...) \
- printk(fmt ,##args)
- #endif
-
- #ifdef CONFIG_SND_DEBUG
-
- #define __ASTRING__(x) #x
-
- #ifdef CONFIG_SND_VERBOSE_PRINTK
- /**
- * snd_printd - debug printk
- * @format: format string
- *
- * Compiled only when Works like snd_printk() for debugging purpose.
- * Ignored when CONFIG_SND_DEBUG is not set.
- */
- #define snd_printd(fmt, args...) \
- snd_verbose_printd(__FILE__, __LINE__, fmt ,##args)
- #else
- #define snd_printd(fmt, args...) \
- printk(fmt ,##args)
- #endif
- /**
- * snd_assert - run-time assertion macro
- * @expr: expression
- * @args...: the action
- *
- * This macro checks the expression in run-time and invokes the commands
- * given in the rest arguments if the assertion is failed.
- * When CONFIG_SND_DEBUG is not set, the expression is executed but
- * not checked.
- */
- #define snd_assert(expr, args...) do { \
- if (unlikely(!(expr))) { \
- snd_printk(KERN_ERR "BUG? (%s)\n", __ASTRING__(expr)); \
- dump_stack(); \
- args; \
- } \
- } while (0)
-
- #define snd_BUG() do { \
- snd_printk(KERN_ERR "BUG?\n"); \
- dump_stack(); \
- } while (0)
-
- #else /* !CONFIG_SND_DEBUG */
-
- #define snd_printd(fmt, args...) /* nothing */
- #define snd_assert(expr, args...) (void)(expr)
- #define snd_BUG() /* nothing */
-
- #endif /* CONFIG_SND_DEBUG */
-
- #ifdef CONFIG_SND_DEBUG_DETECT
- /**
- * snd_printdd - debug printk
- * @format: format string
- *
- * Compiled only when Works like snd_printk() for debugging purpose.
- * Ignored when CONFIG_SND_DEBUG_DETECT is not set.
- */
- #define snd_printdd(format, args...) snd_printk(format, ##args)
- #else
- #define snd_printdd(format, args...) /* nothing */
- #endif
-
-
- #define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */
-
- /* for easier backward-porting */
- #if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
- #ifndef gameport_set_dev_parent
- #define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev))
- #define gameport_set_port_data(gp,r) ((gp)->port_data = (r))
- #define gameport_get_port_data(gp) (gp)->port_data
- #endif
- #endif
-
- #endif /* __SOUND_CORE_H */
-