diff options
Diffstat (limited to 'ANDROID_3.4.5/include/sound/pcm.h')
| -rw-r--r-- | ANDROID_3.4.5/include/sound/pcm.h | 1076 |
1 files changed, 0 insertions, 1076 deletions
diff --git a/ANDROID_3.4.5/include/sound/pcm.h b/ANDROID_3.4.5/include/sound/pcm.h deleted file mode 100644 index 0d111281..00000000 --- a/ANDROID_3.4.5/include/sound/pcm.h +++ /dev/null @@ -1,1076 +0,0 @@ -#ifndef __SOUND_PCM_H -#define __SOUND_PCM_H - -/* - * Digital Audio (PCM) abstract layer - * Copyright (c) by Jaroslav Kysela <perex@perex.cz> - * Abramo Bagnara <abramo@alsa-project.org> - * - * - * 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 <sound/memalloc.h> -#include <sound/minors.h> -#include <linux/poll.h> -#include <linux/mm.h> -#include <linux/bitops.h> -#include <linux/pm_qos.h> - -#define snd_pcm_substream_chip(substream) ((substream)->private_data) -#define snd_pcm_chip(pcm) ((pcm)->private_data) - -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) -#include "pcm_oss.h" -#endif - -/* - * Hardware (lowlevel) section - */ - -struct snd_pcm_hardware { - unsigned int info; /* SNDRV_PCM_INFO_* */ - u64 formats; /* SNDRV_PCM_FMTBIT_* */ - unsigned int rates; /* SNDRV_PCM_RATE_* */ - unsigned int rate_min; /* min rate */ - unsigned int rate_max; /* max rate */ - unsigned int channels_min; /* min channels */ - unsigned int channels_max; /* max channels */ - size_t buffer_bytes_max; /* max buffer size */ - size_t period_bytes_min; /* min period size */ - size_t period_bytes_max; /* max period size */ - unsigned int periods_min; /* min # of periods */ - unsigned int periods_max; /* max # of periods */ - size_t fifo_size; /* fifo size in bytes */ -}; - -struct snd_pcm_substream; - -struct snd_pcm_ops { - int (*open)(struct snd_pcm_substream *substream); - int (*close)(struct snd_pcm_substream *substream); - int (*ioctl)(struct snd_pcm_substream * substream, - unsigned int cmd, void *arg); - int (*hw_params)(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params); - int (*hw_free)(struct snd_pcm_substream *substream); - int (*prepare)(struct snd_pcm_substream *substream); - int (*trigger)(struct snd_pcm_substream *substream, int cmd); - snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream); - int (*copy)(struct snd_pcm_substream *substream, int channel, - snd_pcm_uframes_t pos, - void __user *buf, snd_pcm_uframes_t count); - int (*silence)(struct snd_pcm_substream *substream, int channel, - snd_pcm_uframes_t pos, snd_pcm_uframes_t count); - struct page *(*page)(struct snd_pcm_substream *substream, - unsigned long offset); - int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma); - int (*ack)(struct snd_pcm_substream *substream); -}; - -/* - * - */ - -#if defined(CONFIG_SND_DYNAMIC_MINORS) -#define SNDRV_PCM_DEVICES (SNDRV_OS_MINORS-2) -#else -#define SNDRV_PCM_DEVICES 8 -#endif - -#define SNDRV_PCM_IOCTL1_FALSE ((void *)0) -#define SNDRV_PCM_IOCTL1_TRUE ((void *)1) - -#define SNDRV_PCM_IOCTL1_RESET 0 -#define SNDRV_PCM_IOCTL1_INFO 1 -#define SNDRV_PCM_IOCTL1_CHANNEL_INFO 2 -#define SNDRV_PCM_IOCTL1_GSTATE 3 -#define SNDRV_PCM_IOCTL1_FIFO_SIZE 4 - -#define SNDRV_PCM_TRIGGER_STOP 0 -#define SNDRV_PCM_TRIGGER_START 1 -#define SNDRV_PCM_TRIGGER_PAUSE_PUSH 3 -#define SNDRV_PCM_TRIGGER_PAUSE_RELEASE 4 -#define SNDRV_PCM_TRIGGER_SUSPEND 5 -#define SNDRV_PCM_TRIGGER_RESUME 6 - -#define SNDRV_PCM_POS_XRUN ((snd_pcm_uframes_t)-1) - -/* If you change this don't forget to change rates[] table in pcm_native.c */ -#define SNDRV_PCM_RATE_5512 (1<<0) /* 5512Hz */ -#define SNDRV_PCM_RATE_8000 (1<<1) /* 8000Hz */ -#define SNDRV_PCM_RATE_11025 (1<<2) /* 11025Hz */ -#define SNDRV_PCM_RATE_16000 (1<<3) /* 16000Hz */ -#define SNDRV_PCM_RATE_22050 (1<<4) /* 22050Hz */ -#define SNDRV_PCM_RATE_32000 (1<<5) /* 32000Hz */ -#define SNDRV_PCM_RATE_44100 (1<<6) /* 44100Hz */ -#define SNDRV_PCM_RATE_48000 (1<<7) /* 48000Hz */ -#define SNDRV_PCM_RATE_64000 (1<<8) /* 64000Hz */ -#define SNDRV_PCM_RATE_88200 (1<<9) /* 88200Hz */ -#define SNDRV_PCM_RATE_96000 (1<<10) /* 96000Hz */ -#define SNDRV_PCM_RATE_176400 (1<<11) /* 176400Hz */ -#define SNDRV_PCM_RATE_192000 (1<<12) /* 192000Hz */ - -#define SNDRV_PCM_RATE_CONTINUOUS (1<<30) /* continuous range */ -#define SNDRV_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */ - -#define SNDRV_PCM_RATE_8000_44100 (SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_11025|\ - SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_22050|\ - SNDRV_PCM_RATE_32000|SNDRV_PCM_RATE_44100) -#define SNDRV_PCM_RATE_8000_48000 (SNDRV_PCM_RATE_8000_44100|SNDRV_PCM_RATE_48000) -#define SNDRV_PCM_RATE_8000_96000 (SNDRV_PCM_RATE_8000_48000|SNDRV_PCM_RATE_64000|\ - SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000) -#define SNDRV_PCM_RATE_8000_192000 (SNDRV_PCM_RATE_8000_96000|SNDRV_PCM_RATE_176400|\ - SNDRV_PCM_RATE_192000) -#define _SNDRV_PCM_FMTBIT(fmt) (1ULL << (__force int)SNDRV_PCM_FORMAT_##fmt) -#define SNDRV_PCM_FMTBIT_S8 _SNDRV_PCM_FMTBIT(S8) -#define SNDRV_PCM_FMTBIT_U8 _SNDRV_PCM_FMTBIT(U8) -#define SNDRV_PCM_FMTBIT_S16_LE _SNDRV_PCM_FMTBIT(S16_LE) -#define SNDRV_PCM_FMTBIT_S16_BE _SNDRV_PCM_FMTBIT(S16_BE) -#define SNDRV_PCM_FMTBIT_U16_LE _SNDRV_PCM_FMTBIT(U16_LE) -#define SNDRV_PCM_FMTBIT_U16_BE _SNDRV_PCM_FMTBIT(U16_BE) -#define SNDRV_PCM_FMTBIT_S24_LE _SNDRV_PCM_FMTBIT(S24_LE) -#define SNDRV_PCM_FMTBIT_S24_BE _SNDRV_PCM_FMTBIT(S24_BE) -#define SNDRV_PCM_FMTBIT_U24_LE _SNDRV_PCM_FMTBIT(U24_LE) -#define SNDRV_PCM_FMTBIT_U24_BE _SNDRV_PCM_FMTBIT(U24_BE) -#define SNDRV_PCM_FMTBIT_S32_LE _SNDRV_PCM_FMTBIT(S32_LE) -#define SNDRV_PCM_FMTBIT_S32_BE _SNDRV_PCM_FMTBIT(S32_BE) -#define SNDRV_PCM_FMTBIT_U32_LE _SNDRV_PCM_FMTBIT(U32_LE) -#define SNDRV_PCM_FMTBIT_U32_BE _SNDRV_PCM_FMTBIT(U32_BE) -#define SNDRV_PCM_FMTBIT_FLOAT_LE _SNDRV_PCM_FMTBIT(FLOAT_LE) -#define SNDRV_PCM_FMTBIT_FLOAT_BE _SNDRV_PCM_FMTBIT(FLOAT_BE) -#define SNDRV_PCM_FMTBIT_FLOAT64_LE _SNDRV_PCM_FMTBIT(FLOAT64_LE) -#define SNDRV_PCM_FMTBIT_FLOAT64_BE _SNDRV_PCM_FMTBIT(FLOAT64_BE) -#define SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE _SNDRV_PCM_FMTBIT(IEC958_SUBFRAME_LE) -#define SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE _SNDRV_PCM_FMTBIT(IEC958_SUBFRAME_BE) -#define SNDRV_PCM_FMTBIT_MU_LAW _SNDRV_PCM_FMTBIT(MU_LAW) -#define SNDRV_PCM_FMTBIT_A_LAW _SNDRV_PCM_FMTBIT(A_LAW) -#define SNDRV_PCM_FMTBIT_IMA_ADPCM _SNDRV_PCM_FMTBIT(IMA_ADPCM) -#define SNDRV_PCM_FMTBIT_MPEG _SNDRV_PCM_FMTBIT(MPEG) -#define SNDRV_PCM_FMTBIT_GSM _SNDRV_PCM_FMTBIT(GSM) -#define SNDRV_PCM_FMTBIT_SPECIAL _SNDRV_PCM_FMTBIT(SPECIAL) -#define SNDRV_PCM_FMTBIT_S24_3LE _SNDRV_PCM_FMTBIT(S24_3LE) -#define SNDRV_PCM_FMTBIT_U24_3LE _SNDRV_PCM_FMTBIT(U24_3LE) -#define SNDRV_PCM_FMTBIT_S24_3BE _SNDRV_PCM_FMTBIT(S24_3BE) -#define SNDRV_PCM_FMTBIT_U24_3BE _SNDRV_PCM_FMTBIT(U24_3BE) -#define SNDRV_PCM_FMTBIT_S20_3LE _SNDRV_PCM_FMTBIT(S20_3LE) -#define SNDRV_PCM_FMTBIT_U20_3LE _SNDRV_PCM_FMTBIT(U20_3LE) -#define SNDRV_PCM_FMTBIT_S20_3BE _SNDRV_PCM_FMTBIT(S20_3BE) -#define SNDRV_PCM_FMTBIT_U20_3BE _SNDRV_PCM_FMTBIT(U20_3BE) -#define SNDRV_PCM_FMTBIT_S18_3LE _SNDRV_PCM_FMTBIT(S18_3LE) -#define SNDRV_PCM_FMTBIT_U18_3LE _SNDRV_PCM_FMTBIT(U18_3LE) -#define SNDRV_PCM_FMTBIT_S18_3BE _SNDRV_PCM_FMTBIT(S18_3BE) -#define SNDRV_PCM_FMTBIT_U18_3BE _SNDRV_PCM_FMTBIT(U18_3BE) -#define SNDRV_PCM_FMTBIT_G723_24 _SNDRV_PCM_FMTBIT(G723_24) -#define SNDRV_PCM_FMTBIT_G723_24_1B _SNDRV_PCM_FMTBIT(G723_24_1B) -#define SNDRV_PCM_FMTBIT_G723_40 _SNDRV_PCM_FMTBIT(G723_40) -#define SNDRV_PCM_FMTBIT_G723_40_1B _SNDRV_PCM_FMTBIT(G723_40_1B) - -#ifdef SNDRV_LITTLE_ENDIAN -#define SNDRV_PCM_FMTBIT_S16 SNDRV_PCM_FMTBIT_S16_LE -#define SNDRV_PCM_FMTBIT_U16 SNDRV_PCM_FMTBIT_U16_LE -#define SNDRV_PCM_FMTBIT_S24 SNDRV_PCM_FMTBIT_S24_LE -#define SNDRV_PCM_FMTBIT_U24 SNDRV_PCM_FMTBIT_U24_LE -#define SNDRV_PCM_FMTBIT_S32 SNDRV_PCM_FMTBIT_S32_LE -#define SNDRV_PCM_FMTBIT_U32 SNDRV_PCM_FMTBIT_U32_LE -#define SNDRV_PCM_FMTBIT_FLOAT SNDRV_PCM_FMTBIT_FLOAT_LE -#define SNDRV_PCM_FMTBIT_FLOAT64 SNDRV_PCM_FMTBIT_FLOAT64_LE -#define SNDRV_PCM_FMTBIT_IEC958_SUBFRAME SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE -#endif -#ifdef SNDRV_BIG_ENDIAN -#define SNDRV_PCM_FMTBIT_S16 SNDRV_PCM_FMTBIT_S16_BE -#define SNDRV_PCM_FMTBIT_U16 SNDRV_PCM_FMTBIT_U16_BE -#define SNDRV_PCM_FMTBIT_S24 SNDRV_PCM_FMTBIT_S24_BE -#define SNDRV_PCM_FMTBIT_U24 SNDRV_PCM_FMTBIT_U24_BE -#define SNDRV_PCM_FMTBIT_S32 SNDRV_PCM_FMTBIT_S32_BE -#define SNDRV_PCM_FMTBIT_U32 SNDRV_PCM_FMTBIT_U32_BE -#define SNDRV_PCM_FMTBIT_FLOAT SNDRV_PCM_FMTBIT_FLOAT_BE -#define SNDRV_PCM_FMTBIT_FLOAT64 SNDRV_PCM_FMTBIT_FLOAT64_BE -#define SNDRV_PCM_FMTBIT_IEC958_SUBFRAME SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE -#endif - -struct snd_pcm_file { - struct snd_pcm_substream *substream; - int no_compat_mmap; -}; - -struct snd_pcm_hw_rule; -typedef int (*snd_pcm_hw_rule_func_t)(struct snd_pcm_hw_params *params, - struct snd_pcm_hw_rule *rule); - -struct snd_pcm_hw_rule { - unsigned int cond; - snd_pcm_hw_rule_func_t func; - int var; - int deps[4]; - void *private; -}; - -struct snd_pcm_hw_constraints { - struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; - struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; - unsigned int rules_num; - unsigned int rules_all; - struct snd_pcm_hw_rule *rules; -}; - -static inline struct snd_mask *constrs_mask(struct snd_pcm_hw_constraints *constrs, - snd_pcm_hw_param_t var) -{ - return &constrs->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; -} - -static inline struct snd_interval *constrs_interval(struct snd_pcm_hw_constraints *constrs, - snd_pcm_hw_param_t var) -{ - return &constrs->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; -} - -struct snd_ratnum { - unsigned int num; - unsigned int den_min, den_max, den_step; -}; - -struct snd_ratden { - unsigned int num_min, num_max, num_step; - unsigned int den; -}; - -struct snd_pcm_hw_constraint_ratnums { - int nrats; - struct snd_ratnum *rats; -}; - -struct snd_pcm_hw_constraint_ratdens { - int nrats; - struct snd_ratden *rats; -}; - -struct snd_pcm_hw_constraint_list { - unsigned int count; - const unsigned int *list; - unsigned int mask; -}; - -struct snd_pcm_hwptr_log; - -struct snd_pcm_runtime { - /* -- Status -- */ - struct snd_pcm_substream *trigger_master; - struct timespec trigger_tstamp; /* trigger timestamp */ - int overrange; - snd_pcm_uframes_t avail_max; - snd_pcm_uframes_t hw_ptr_base; /* Position at buffer restart */ - snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */ - unsigned long hw_ptr_jiffies; /* Time when hw_ptr is updated */ - unsigned long hw_ptr_buffer_jiffies; /* buffer time in jiffies */ - snd_pcm_sframes_t delay; /* extra delay; typically FIFO size */ - - /* -- HW params -- */ - snd_pcm_access_t access; /* access mode */ - snd_pcm_format_t format; /* SNDRV_PCM_FORMAT_* */ - snd_pcm_subformat_t subformat; /* subformat */ - unsigned int rate; /* rate in Hz */ - unsigned int channels; /* channels */ - snd_pcm_uframes_t period_size; /* period size */ - unsigned int periods; /* periods */ - snd_pcm_uframes_t buffer_size; /* buffer size */ - snd_pcm_uframes_t min_align; /* Min alignment for the format */ - size_t byte_align; - unsigned int frame_bits; - unsigned int sample_bits; - unsigned int info; - unsigned int rate_num; - unsigned int rate_den; - unsigned int no_period_wakeup: 1; - - /* -- SW params -- */ - int tstamp_mode; /* mmap timestamp is updated */ - unsigned int period_step; - snd_pcm_uframes_t start_threshold; - snd_pcm_uframes_t stop_threshold; - snd_pcm_uframes_t silence_threshold; /* Silence filling happens when - noise is nearest than this */ - snd_pcm_uframes_t silence_size; /* Silence filling size */ - snd_pcm_uframes_t boundary; /* pointers wrap point */ - - snd_pcm_uframes_t silence_start; /* starting pointer to silence area */ - snd_pcm_uframes_t silence_filled; /* size filled with silence */ - - union snd_pcm_sync_id sync; /* hardware synchronization ID */ - - /* -- mmap -- */ - struct snd_pcm_mmap_status *status; - struct snd_pcm_mmap_control *control; - - /* -- locking / scheduling -- */ - snd_pcm_uframes_t twake; /* do transfer (!poll) wakeup if non-zero */ - wait_queue_head_t sleep; /* poll sleep */ - wait_queue_head_t tsleep; /* transfer sleep */ - struct fasync_struct *fasync; - - /* -- private section -- */ - void *private_data; - void (*private_free)(struct snd_pcm_runtime *runtime); - - /* -- hardware description -- */ - struct snd_pcm_hardware hw; - struct snd_pcm_hw_constraints hw_constraints; - - /* -- interrupt callbacks -- */ - void (*transfer_ack_begin)(struct snd_pcm_substream *substream); - void (*transfer_ack_end)(struct snd_pcm_substream *substream); - - /* -- timer -- */ - unsigned int timer_resolution; /* timer resolution */ - int tstamp_type; /* timestamp type */ - - /* -- DMA -- */ - unsigned char *dma_area; /* DMA area */ - dma_addr_t dma_addr; /* physical bus address (not accessible from main CPU) */ - size_t dma_bytes; /* size of DMA area */ - - struct snd_dma_buffer *dma_buffer_p; /* allocated buffer */ - -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) - /* -- OSS things -- */ - struct snd_pcm_oss_runtime oss; -#endif - -#ifdef CONFIG_SND_PCM_XRUN_DEBUG - struct snd_pcm_hwptr_log *hwptr_log; -#endif -}; - -struct snd_pcm_group { /* keep linked substreams */ - spinlock_t lock; - struct list_head substreams; - int count; -}; - -struct pid; - -struct snd_pcm_substream { - struct snd_pcm *pcm; - struct snd_pcm_str *pstr; - void *private_data; /* copied from pcm->private_data */ - int number; - char name[32]; /* substream name */ - int stream; /* stream (direction) */ - struct pm_qos_request latency_pm_qos_req; /* pm_qos request */ - size_t buffer_bytes_max; /* limit ring buffer size */ - struct snd_dma_buffer dma_buffer; - unsigned int dma_buf_id; - size_t dma_max; - /* -- hardware operations -- */ - struct snd_pcm_ops *ops; - /* -- runtime information -- */ - struct snd_pcm_runtime *runtime; - /* -- timer section -- */ - struct snd_timer *timer; /* timer */ - unsigned timer_running: 1; /* time is running */ - /* -- next substream -- */ - struct snd_pcm_substream *next; - /* -- linked substreams -- */ - struct list_head link_list; /* linked list member */ - struct snd_pcm_group self_group; /* fake group for non linked substream (with substream lock inside) */ - struct snd_pcm_group *group; /* pointer to current group */ - /* -- assigned files -- */ - void *file; - int ref_count; - atomic_t mmap_count; - unsigned int f_flags; - void (*pcm_release)(struct snd_pcm_substream *); - struct pid *pid; -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) - /* -- OSS things -- */ - struct snd_pcm_oss_substream oss; -#endif -#ifdef CONFIG_SND_VERBOSE_PROCFS - struct snd_info_entry *proc_root; - struct snd_info_entry *proc_info_entry; - struct snd_info_entry *proc_hw_params_entry; - struct snd_info_entry *proc_sw_params_entry; - struct snd_info_entry *proc_status_entry; - struct snd_info_entry *proc_prealloc_entry; - struct snd_info_entry *proc_prealloc_max_entry; -#endif - /* misc flags */ - unsigned int hw_opened: 1; -}; - -#define SUBSTREAM_BUSY(substream) ((substream)->ref_count > 0) - - -struct snd_pcm_str { - int stream; /* stream (direction) */ - struct snd_pcm *pcm; - /* -- substreams -- */ - unsigned int substream_count; - unsigned int substream_opened; - struct snd_pcm_substream *substream; -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) - /* -- OSS things -- */ - struct snd_pcm_oss_stream oss; -#endif -#ifdef CONFIG_SND_VERBOSE_PROCFS - struct snd_info_entry *proc_root; - struct snd_info_entry *proc_info_entry; -#ifdef CONFIG_SND_PCM_XRUN_DEBUG - unsigned int xrun_debug; /* 0 = disabled, 1 = verbose, 2 = stacktrace */ - struct snd_info_entry *proc_xrun_debug_entry; -#endif -#endif -}; - -struct snd_pcm { - struct snd_card *card; - struct list_head list; - int device; /* device number */ - unsigned int info_flags; - unsigned short dev_class; - unsigned short dev_subclass; - char id[64]; - char name[80]; - struct snd_pcm_str streams[2]; - struct mutex open_mutex; - wait_queue_head_t open_wait; - void *private_data; - void (*private_free) (struct snd_pcm *pcm); - struct device *dev; /* actual hw device this belongs to */ - bool internal; /* pcm is for internal use only */ -#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) - struct snd_pcm_oss oss; -#endif -}; - -struct snd_pcm_notify { - int (*n_register) (struct snd_pcm * pcm); - int (*n_disconnect) (struct snd_pcm * pcm); - int (*n_unregister) (struct snd_pcm * pcm); - struct list_head list; -}; - -/* - * Registering - */ - -extern const struct file_operations snd_pcm_f_ops[2]; - -int snd_pcm_new(struct snd_card *card, const char *id, int device, - int playback_count, int capture_count, - struct snd_pcm **rpcm); -int snd_pcm_new_internal(struct snd_card *card, const char *id, int device, - int playback_count, int capture_count, - struct snd_pcm **rpcm); -int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count); - -int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree); - -/* - * Native I/O - */ - -extern rwlock_t snd_pcm_link_rwlock; - -int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info); -int snd_pcm_info_user(struct snd_pcm_substream *substream, - struct snd_pcm_info __user *info); -int snd_pcm_status(struct snd_pcm_substream *substream, - struct snd_pcm_status *status); -int snd_pcm_start(struct snd_pcm_substream *substream); -int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status); -int snd_pcm_drain_done(struct snd_pcm_substream *substream); -#ifdef CONFIG_PM -int snd_pcm_suspend(struct snd_pcm_substream *substream); -int snd_pcm_suspend_all(struct snd_pcm *pcm); -#endif -int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg); -int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct file *file, - struct snd_pcm_substream **rsubstream); -void snd_pcm_release_substream(struct snd_pcm_substream *substream); -int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, struct file *file, - struct snd_pcm_substream **rsubstream); -void snd_pcm_detach_substream(struct snd_pcm_substream *substream); -void snd_pcm_vma_notify_data(void *client, void *data); -int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area); - - -#ifdef CONFIG_SND_DEBUG -void snd_pcm_debug_name(struct snd_pcm_substream *substream, - char *name, size_t len); -#else -static inline void -snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size) -{ - *buf = 0; -} -#endif - -/* - * PCM library - */ - -static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream) -{ - return substream->group != &substream->self_group; -} - -static inline void snd_pcm_stream_lock(struct snd_pcm_substream *substream) -{ - read_lock(&snd_pcm_link_rwlock); - spin_lock(&substream->self_group.lock); -} - -static inline void snd_pcm_stream_unlock(struct snd_pcm_substream *substream) -{ - spin_unlock(&substream->self_group.lock); - read_unlock(&snd_pcm_link_rwlock); -} - -static inline void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream) -{ - read_lock_irq(&snd_pcm_link_rwlock); - spin_lock(&substream->self_group.lock); -} - -static inline void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream) -{ - spin_unlock(&substream->self_group.lock); - read_unlock_irq(&snd_pcm_link_rwlock); -} - -#define snd_pcm_stream_lock_irqsave(substream, flags) \ -do { \ - read_lock_irqsave(&snd_pcm_link_rwlock, (flags)); \ - spin_lock(&substream->self_group.lock); \ -} while (0) - -#define snd_pcm_stream_unlock_irqrestore(substream, flags) \ -do { \ - spin_unlock(&substream->self_group.lock); \ - read_unlock_irqrestore(&snd_pcm_link_rwlock, (flags)); \ -} while (0) - -#define snd_pcm_group_for_each_entry(s, substream) \ - list_for_each_entry(s, &substream->group->substreams, link_list) - -static inline int snd_pcm_running(struct snd_pcm_substream *substream) -{ - return (substream->runtime->status->state == SNDRV_PCM_STATE_RUNNING || - (substream->runtime->status->state == SNDRV_PCM_STATE_DRAINING && - substream->stream == SNDRV_PCM_STREAM_PLAYBACK)); -} - -static inline ssize_t bytes_to_samples(struct snd_pcm_runtime *runtime, ssize_t size) -{ - return size * 8 / runtime->sample_bits; -} - -static inline snd_pcm_sframes_t bytes_to_frames(struct snd_pcm_runtime *runtime, ssize_t size) -{ - return size * 8 / runtime->frame_bits; -} - -static inline ssize_t samples_to_bytes(struct snd_pcm_runtime *runtime, ssize_t size) -{ - return size * runtime->sample_bits / 8; -} - -static inline ssize_t frames_to_bytes(struct snd_pcm_runtime *runtime, snd_pcm_sframes_t size) -{ - return size * runtime->frame_bits / 8; -} - -static inline int frame_aligned(struct snd_pcm_runtime *runtime, ssize_t bytes) -{ - return bytes % runtime->byte_align == 0; -} - -static inline size_t snd_pcm_lib_buffer_bytes(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - return frames_to_bytes(runtime, runtime->buffer_size); -} - -static inline size_t snd_pcm_lib_period_bytes(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - return frames_to_bytes(runtime, runtime->period_size); -} - -/* - * result is: 0 ... (boundary - 1) - */ -static inline snd_pcm_uframes_t snd_pcm_playback_avail(struct snd_pcm_runtime *runtime) -{ - snd_pcm_sframes_t avail = runtime->status->hw_ptr + runtime->buffer_size - runtime->control->appl_ptr; - if (avail < 0) - avail += runtime->boundary; - else if ((snd_pcm_uframes_t) avail >= runtime->boundary) - avail -= runtime->boundary; - return avail; -} - -/* - * result is: 0 ... (boundary - 1) - */ -static inline snd_pcm_uframes_t snd_pcm_capture_avail(struct snd_pcm_runtime *runtime) -{ - snd_pcm_sframes_t avail = runtime->status->hw_ptr - runtime->control->appl_ptr; - if (avail < 0) - avail += runtime->boundary; - return avail; -} - -static inline snd_pcm_sframes_t snd_pcm_playback_hw_avail(struct snd_pcm_runtime *runtime) -{ - return runtime->buffer_size - snd_pcm_playback_avail(runtime); -} - -static inline snd_pcm_sframes_t snd_pcm_capture_hw_avail(struct snd_pcm_runtime *runtime) -{ - return runtime->buffer_size - snd_pcm_capture_avail(runtime); -} - -/** - * snd_pcm_playback_ready - check whether the playback buffer is available - * @substream: the pcm substream instance - * - * Checks whether enough free space is available on the playback buffer. - * - * Returns non-zero if available, or zero if not. - */ -static inline int snd_pcm_playback_ready(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - return snd_pcm_playback_avail(runtime) >= runtime->control->avail_min; -} - -/** - * snd_pcm_capture_ready - check whether the capture buffer is available - * @substream: the pcm substream instance - * - * Checks whether enough capture data is available on the capture buffer. - * - * Returns non-zero if available, or zero if not. - */ -static inline int snd_pcm_capture_ready(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - return snd_pcm_capture_avail(runtime) >= runtime->control->avail_min; -} - -/** - * snd_pcm_playback_data - check whether any data exists on the playback buffer - * @substream: the pcm substream instance - * - * Checks whether any data exists on the playback buffer. If stop_threshold - * is bigger or equal to boundary, then this function returns always non-zero. - * - * Returns non-zero if exists, or zero if not. - */ -static inline int snd_pcm_playback_data(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - - if (runtime->stop_threshold >= runtime->boundary) - return 1; - return snd_pcm_playback_avail(runtime) < runtime->buffer_size; -} - -/** - * snd_pcm_playback_empty - check whether the playback buffer is empty - * @substream: the pcm substream instance - * - * Checks whether the playback buffer is empty. - * - * Returns non-zero if empty, or zero if not. - */ -static inline int snd_pcm_playback_empty(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - return snd_pcm_playback_avail(runtime) >= runtime->buffer_size; -} - -/** - * snd_pcm_capture_empty - check whether the capture buffer is empty - * @substream: the pcm substream instance - * - * Checks whether the capture buffer is empty. - * - * Returns non-zero if empty, or zero if not. - */ -static inline int snd_pcm_capture_empty(struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - return snd_pcm_capture_avail(runtime) == 0; -} - -static inline void snd_pcm_trigger_done(struct snd_pcm_substream *substream, - struct snd_pcm_substream *master) -{ - substream->runtime->trigger_master = master; -} - -static inline int hw_is_mask(int var) -{ - return var >= SNDRV_PCM_HW_PARAM_FIRST_MASK && - var <= SNDRV_PCM_HW_PARAM_LAST_MASK; -} - -static inline int hw_is_interval(int var) -{ - return var >= SNDRV_PCM_HW_PARAM_FIRST_INTERVAL && - var <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; -} - -static inline struct snd_mask *hw_param_mask(struct snd_pcm_hw_params *params, - snd_pcm_hw_param_t var) -{ - return ¶ms->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; -} - -static inline struct snd_interval *hw_param_interval(struct snd_pcm_hw_params *params, - snd_pcm_hw_param_t var) -{ - return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; -} - -static inline const struct snd_mask *hw_param_mask_c(const struct snd_pcm_hw_params *params, - snd_pcm_hw_param_t var) -{ - return ¶ms->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; -} - -static inline const struct snd_interval *hw_param_interval_c(const struct snd_pcm_hw_params *params, - snd_pcm_hw_param_t var) -{ - return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; -} - -#define params_channels(p) \ - (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_CHANNELS)->min) -#define params_rate(p) \ - (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_RATE)->min) -#define params_period_size(p) \ - (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min) -#define params_periods(p) \ - (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_PERIODS)->min) -#define params_buffer_size(p) \ - (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_BUFFER_SIZE)->min) -#define params_buffer_bytes(p) \ - (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->min) - -int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v); -void snd_interval_mul(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c); -void snd_interval_div(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c); -void snd_interval_muldivk(const struct snd_interval *a, const struct snd_interval *b, - unsigned int k, struct snd_interval *c); -void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k, - const struct snd_interval *b, struct snd_interval *c); -int snd_interval_list(struct snd_interval *i, unsigned int count, - const unsigned int *list, unsigned int mask); -int snd_interval_ratnum(struct snd_interval *i, - unsigned int rats_count, struct snd_ratnum *rats, - unsigned int *nump, unsigned int *denp); - -void _snd_pcm_hw_params_any(struct snd_pcm_hw_params *params); -void _snd_pcm_hw_param_setempty(struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var); -int snd_pcm_hw_params_choose(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params); - -int snd_pcm_hw_refine(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params); - -int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream); -int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream); - -int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, - u_int32_t mask); -int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, - u_int64_t mask); -int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, - unsigned int min, unsigned int max); -int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var); -int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime, - unsigned int cond, - snd_pcm_hw_param_t var, - struct snd_pcm_hw_constraint_list *l); -int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime, - unsigned int cond, - snd_pcm_hw_param_t var, - struct snd_pcm_hw_constraint_ratnums *r); -int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime, - unsigned int cond, - snd_pcm_hw_param_t var, - struct snd_pcm_hw_constraint_ratdens *r); -int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime, - unsigned int cond, - unsigned int width, - unsigned int msbits); -int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime, - unsigned int cond, - snd_pcm_hw_param_t var, - unsigned long step); -int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime, - unsigned int cond, - snd_pcm_hw_param_t var); -int snd_pcm_hw_rule_noresample(struct snd_pcm_runtime *runtime, - unsigned int base_rate); -int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, - unsigned int cond, - int var, - snd_pcm_hw_rule_func_t func, void *private, - int dep, ...); - -int snd_pcm_format_signed(snd_pcm_format_t format); -int snd_pcm_format_unsigned(snd_pcm_format_t format); -int snd_pcm_format_linear(snd_pcm_format_t format); -int snd_pcm_format_little_endian(snd_pcm_format_t format); -int snd_pcm_format_big_endian(snd_pcm_format_t format); -#if 0 /* just for DocBook */ -/** - * snd_pcm_format_cpu_endian - Check the PCM format is CPU-endian - * @format: the format to check - * - * Returns 1 if the given PCM format is CPU-endian, 0 if - * opposite, or a negative error code if endian not specified. - */ -int snd_pcm_format_cpu_endian(snd_pcm_format_t format); -#endif /* DocBook */ -#ifdef SNDRV_LITTLE_ENDIAN -#define snd_pcm_format_cpu_endian(format) snd_pcm_format_little_endian(format) -#else -#define snd_pcm_format_cpu_endian(format) snd_pcm_format_big_endian(format) -#endif -int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */ -int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */ -ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples); -const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format); -int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int frames); -snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian); - -void snd_pcm_set_ops(struct snd_pcm * pcm, int direction, struct snd_pcm_ops *ops); -void snd_pcm_set_sync(struct snd_pcm_substream *substream); -int snd_pcm_lib_interleave_len(struct snd_pcm_substream *substream); -int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream, - unsigned int cmd, void *arg); -int snd_pcm_update_state(struct snd_pcm_substream *substream, - struct snd_pcm_runtime *runtime); -int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream); -int snd_pcm_playback_xrun_check(struct snd_pcm_substream *substream); -int snd_pcm_capture_xrun_check(struct snd_pcm_substream *substream); -int snd_pcm_playback_xrun_asap(struct snd_pcm_substream *substream); -int snd_pcm_capture_xrun_asap(struct snd_pcm_substream *substream); -void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_uframes_t new_hw_ptr); -void snd_pcm_period_elapsed(struct snd_pcm_substream *substream); -snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, - const void __user *buf, - snd_pcm_uframes_t frames); -snd_pcm_sframes_t snd_pcm_lib_read(struct snd_pcm_substream *substream, - void __user *buf, snd_pcm_uframes_t frames); -snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream, - void __user **bufs, snd_pcm_uframes_t frames); -snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream, - void __user **bufs, snd_pcm_uframes_t frames); - -extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates; - -int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime); -unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate); - -static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream, - struct snd_dma_buffer *bufp) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - if (bufp) { - runtime->dma_buffer_p = bufp; - runtime->dma_area = bufp->area; - runtime->dma_addr = bufp->addr; - runtime->dma_bytes = bufp->bytes; - } else { - runtime->dma_buffer_p = NULL; - runtime->dma_area = NULL; - runtime->dma_addr = 0; - runtime->dma_bytes = 0; - } -} - -/* - * Timer interface - */ - -void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream); -void snd_pcm_timer_init(struct snd_pcm_substream *substream); -void snd_pcm_timer_done(struct snd_pcm_substream *substream); - -static inline void snd_pcm_gettime(struct snd_pcm_runtime *runtime, - struct timespec *tv) -{ - if (runtime->tstamp_type == SNDRV_PCM_TSTAMP_TYPE_MONOTONIC) - do_posix_clock_monotonic_gettime(tv); - else - getnstimeofday(tv); -} - -/* - * Memory - */ - -int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream); -int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm); -int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream, - int type, struct device *data, - size_t size, size_t max); -int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm, - int type, void *data, - size_t size, size_t max); -int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size); -int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream); - -int _snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream *substream, - size_t size, gfp_t gfp_flags); -int snd_pcm_lib_free_vmalloc_buffer(struct snd_pcm_substream *substream); -struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream, - unsigned long offset); -#if 0 /* for kernel-doc */ -/** - * snd_pcm_lib_alloc_vmalloc_buffer - allocate virtual DMA buffer - * @substream: the substream to allocate the buffer to - * @size: the requested buffer size, in bytes - * - * Allocates the PCM substream buffer using vmalloc(), i.e., the memory is - * contiguous in kernel virtual space, but not in physical memory. Use this - * if the buffer is accessed by kernel code but not by device DMA. - * - * Returns 1 if the buffer was changed, 0 if not changed, or a negative error - * code. - */ -static int snd_pcm_lib_alloc_vmalloc_buffer - (struct snd_pcm_substream *substream, size_t size); -/** - * snd_pcm_lib_alloc_vmalloc_32_buffer - allocate 32-bit-addressable buffer - * @substream: the substream to allocate the buffer to - * @size: the requested buffer size, in bytes - * - * This function works like snd_pcm_lib_alloc_vmalloc_buffer(), but uses - * vmalloc_32(), i.e., the pages are allocated from 32-bit-addressable memory. - */ -static int snd_pcm_lib_alloc_vmalloc_32_buffer - (struct snd_pcm_substream *substream, size_t size); -#endif -#define snd_pcm_lib_alloc_vmalloc_buffer(subs, size) \ - _snd_pcm_lib_alloc_vmalloc_buffer \ - (subs, size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO) -#define snd_pcm_lib_alloc_vmalloc_32_buffer(subs, size) \ - _snd_pcm_lib_alloc_vmalloc_buffer \ - (subs, size, GFP_KERNEL | GFP_DMA32 | __GFP_ZERO) - -#ifdef CONFIG_SND_DMA_SGBUF -/* - * SG-buffer handling - */ -#define snd_pcm_substream_sgbuf(substream) \ - ((substream)->runtime->dma_buffer_p->private_data) - -static inline dma_addr_t -snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs) -{ - struct snd_sg_buf *sg = snd_pcm_substream_sgbuf(substream); - return snd_sgbuf_get_addr(sg, ofs); -} - -static inline void * -snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs) -{ - struct snd_sg_buf *sg = snd_pcm_substream_sgbuf(substream); - return snd_sgbuf_get_ptr(sg, ofs); -} - -struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, - unsigned long offset); -unsigned int snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream, - unsigned int ofs, unsigned int size); - -#else /* !SND_DMA_SGBUF */ -/* - * fake using a continuous buffer - */ -static inline dma_addr_t -snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs) -{ - return substream->runtime->dma_addr + ofs; -} - -static inline void * -snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs) -{ - return substream->runtime->dma_area + ofs; -} - -#define snd_pcm_sgbuf_ops_page NULL - -#define snd_pcm_sgbuf_get_chunk_size(subs, ofs, size) (size) - -#endif /* SND_DMA_SGBUF */ - -/* handle mmap counter - PCM mmap callback should handle this counter properly */ -static inline void snd_pcm_mmap_data_open(struct vm_area_struct *area) -{ - struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data; - atomic_inc(&substream->mmap_count); -} - -static inline void snd_pcm_mmap_data_close(struct vm_area_struct *area) -{ - struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data; - atomic_dec(&substream->mmap_count); -} - -int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, - struct vm_area_struct *area); -/* mmap for io-memory area */ -#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_ALPHA) -#define SNDRV_PCM_INFO_MMAP_IOMEM SNDRV_PCM_INFO_MMAP -int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_struct *area); -#else -#define SNDRV_PCM_INFO_MMAP_IOMEM 0 -#define snd_pcm_lib_mmap_iomem NULL -#endif - -#define snd_pcm_lib_mmap_vmalloc NULL - -static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max) -{ - *max = dma < 4 ? 64 * 1024 : 128 * 1024; -} - -/* - * Misc - */ - -#define SNDRV_PCM_DEFAULT_CON_SPDIF (IEC958_AES0_CON_EMPHASIS_NONE|\ - (IEC958_AES1_CON_ORIGINAL<<8)|\ - (IEC958_AES1_CON_PCM_CODER<<8)|\ - (IEC958_AES3_CON_FS_48000<<24)) - -#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime) - -const char *snd_pcm_format_name(snd_pcm_format_t format); - -#endif /* __SOUND_PCM_H */ |