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include/sound/pcm.h
37.2 KB
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#ifndef __SOUND_PCM_H #define __SOUND_PCM_H /* * Digital Audio (PCM) abstract layer |
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
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* 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> |
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#include <sound/minors.h> |
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#include <linux/poll.h> |
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#include <linux/mm.h> |
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#include <linux/bitops.h> |
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#include <linux/pm_qos.h> |
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#define snd_pcm_substream_chip(substream) ((substream)->private_data) #define snd_pcm_chip(pcm) ((pcm)->private_data) |
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#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) #include "pcm_oss.h" #endif /* * Hardware (lowlevel) section */ |
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struct snd_pcm_hardware { |
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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 */ |
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}; |
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struct snd_pcm_substream; |
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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, |
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unsigned int cmd, void *arg); |
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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, |
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void __user *buf, snd_pcm_uframes_t count); |
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int (*silence)(struct snd_pcm_substream *substream, int channel, |
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snd_pcm_uframes_t pos, snd_pcm_uframes_t count); |
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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); }; |
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/* * */ |
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#if defined(CONFIG_SND_DYNAMIC_MINORS) #define SNDRV_PCM_DEVICES (SNDRV_OS_MINORS-2) #else #define SNDRV_PCM_DEVICES 8 #endif |
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#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 |
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#define SNDRV_PCM_IOCTL1_FIFO_SIZE 4 |
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#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) |
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#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) |
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#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 |
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struct snd_pcm_file { struct snd_pcm_substream *substream; |
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int no_compat_mmap; |
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}; |
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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); |
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struct snd_pcm_hw_rule { |
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unsigned int cond; snd_pcm_hw_rule_func_t func; int var; int deps[4]; void *private; }; |
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struct snd_pcm_hw_constraints { struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - |
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SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; |
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struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - |
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SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; unsigned int rules_num; unsigned int rules_all; |
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struct snd_pcm_hw_rule *rules; }; |
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static inline struct snd_mask *constrs_mask(struct snd_pcm_hw_constraints *constrs, snd_pcm_hw_param_t var) |
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{ return &constrs->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; } |
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static inline struct snd_interval *constrs_interval(struct snd_pcm_hw_constraints *constrs, snd_pcm_hw_param_t var) |
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{ return &constrs->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; } |
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struct snd_ratnum { |
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unsigned int num; unsigned int den_min, den_max, den_step; |
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}; |
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struct snd_ratden { |
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unsigned int num_min, num_max, num_step; unsigned int den; |
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}; |
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struct snd_pcm_hw_constraint_ratnums { |
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int nrats; |
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struct snd_ratnum *rats; }; |
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struct snd_pcm_hw_constraint_ratdens { |
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int nrats; |
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struct snd_ratden *rats; }; |
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struct snd_pcm_hw_constraint_list { |
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unsigned int count; unsigned int *list; unsigned int mask; |
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}; |
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struct snd_pcm_hwptr_log; |
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struct snd_pcm_runtime { |
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/* -- Status -- */ |
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struct snd_pcm_substream *trigger_master; |
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struct timespec trigger_tstamp; /* trigger timestamp */ |
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int overrange; snd_pcm_uframes_t avail_max; snd_pcm_uframes_t hw_ptr_base; /* Position at buffer restart */ |
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snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */ |
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unsigned long hw_ptr_jiffies; /* Time when hw_ptr is updated */ |
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unsigned long hw_ptr_buffer_jiffies; /* buffer time in jiffies */ |
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snd_pcm_sframes_t delay; /* extra delay; typically FIFO size */ |
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/* -- 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 */ |
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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; |
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unsigned int no_period_wakeup: 1; |
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/* -- SW params -- */ |
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int tstamp_mode; /* mmap timestamp is updated */ |
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unsigned int period_step; |
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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 */ |
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union snd_pcm_sync_id sync; /* hardware synchronization ID */ |
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/* -- mmap -- */ |
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struct snd_pcm_mmap_status *status; struct snd_pcm_mmap_control *control; |
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/* -- locking / scheduling -- */ |
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snd_pcm_uframes_t twake; /* do transfer (!poll) wakeup if non-zero */ |
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wait_queue_head_t sleep; /* poll sleep */ wait_queue_head_t tsleep; /* transfer sleep */ |
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struct fasync_struct *fasync; /* -- private section -- */ void *private_data; |
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void (*private_free)(struct snd_pcm_runtime *runtime); |
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/* -- hardware description -- */ |
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struct snd_pcm_hardware hw; struct snd_pcm_hw_constraints hw_constraints; |
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/* -- interrupt callbacks -- */ |
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void (*transfer_ack_begin)(struct snd_pcm_substream *substream); void (*transfer_ack_end)(struct snd_pcm_substream *substream); |
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/* -- timer -- */ unsigned int timer_resolution; /* timer resolution */ |
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int tstamp_type; /* timestamp type */ |
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/* -- 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 -- */ |
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struct snd_pcm_oss_runtime oss; |
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#endif |
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#ifdef CONFIG_SND_PCM_XRUN_DEBUG struct snd_pcm_hwptr_log *hwptr_log; #endif |
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}; |
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struct snd_pcm_group { /* keep linked substreams */ |
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spinlock_t lock; struct list_head substreams; int count; |
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}; |
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struct pid; |
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struct snd_pcm_substream { struct snd_pcm *pcm; struct snd_pcm_str *pstr; |
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void *private_data; /* copied from pcm->private_data */ int number; char name[32]; /* substream name */ int stream; /* stream (direction) */ |
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struct pm_qos_request latency_pm_qos_req; /* pm_qos request */ |
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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 -- */ |
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struct snd_pcm_ops *ops; |
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/* -- runtime information -- */ |
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struct snd_pcm_runtime *runtime; |
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/* -- timer section -- */ |
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373 |
struct snd_timer *timer; /* timer */ |
1da177e4c Linux-2.6.12-rc2 |
374 |
unsigned timer_running: 1; /* time is running */ |
1da177e4c Linux-2.6.12-rc2 |
375 |
/* -- next substream -- */ |
877211f5e [ALSA] Remove xxx... |
376 |
struct snd_pcm_substream *next; |
1da177e4c Linux-2.6.12-rc2 |
377 378 |
/* -- linked substreams -- */ struct list_head link_list; /* linked list member */ |
877211f5e [ALSA] Remove xxx... |
379 380 |
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 */ |
1da177e4c Linux-2.6.12-rc2 |
381 |
/* -- assigned files -- */ |
1576274d3 [ALSA] Fix Oops o... |
382 |
void *file; |
0df63e44c [ALSA] Add O_APPE... |
383 |
int ref_count; |
9c323fcbc [ALSA] Fix mmap_c... |
384 |
atomic_t mmap_count; |
0df63e44c [ALSA] Add O_APPE... |
385 |
unsigned int f_flags; |
3bf75f9b9 [ALSA] Clean up P... |
386 |
void (*pcm_release)(struct snd_pcm_substream *); |
e7373b702 sound: pcm: recor... |
387 |
struct pid *pid; |
1da177e4c Linux-2.6.12-rc2 |
388 389 |
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) /* -- OSS things -- */ |
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390 |
struct snd_pcm_oss_substream oss; |
1da177e4c Linux-2.6.12-rc2 |
391 |
#endif |
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392 |
#ifdef CONFIG_SND_VERBOSE_PROCFS |
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393 394 395 396 397 398 |
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; |
c7132aeb7 [ALSA] pcm core: ... |
399 |
struct snd_info_entry *proc_prealloc_max_entry; |
b7d90a356 [ALSA] Fix Oops a... |
400 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
401 |
/* misc flags */ |
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402 |
unsigned int hw_opened: 1; |
1da177e4c Linux-2.6.12-rc2 |
403 |
}; |
0df63e44c [ALSA] Add O_APPE... |
404 |
#define SUBSTREAM_BUSY(substream) ((substream)->ref_count > 0) |
1da177e4c Linux-2.6.12-rc2 |
405 |
|
877211f5e [ALSA] Remove xxx... |
406 |
struct snd_pcm_str { |
1da177e4c Linux-2.6.12-rc2 |
407 |
int stream; /* stream (direction) */ |
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408 |
struct snd_pcm *pcm; |
1da177e4c Linux-2.6.12-rc2 |
409 410 411 |
/* -- substreams -- */ unsigned int substream_count; unsigned int substream_opened; |
877211f5e [ALSA] Remove xxx... |
412 |
struct snd_pcm_substream *substream; |
1da177e4c Linux-2.6.12-rc2 |
413 414 |
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) /* -- OSS things -- */ |
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415 |
struct snd_pcm_oss_stream oss; |
1da177e4c Linux-2.6.12-rc2 |
416 |
#endif |
b7d90a356 [ALSA] Fix Oops a... |
417 |
#ifdef CONFIG_SND_VERBOSE_PROCFS |
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418 419 |
struct snd_info_entry *proc_root; struct snd_info_entry *proc_info_entry; |
b7d90a356 [ALSA] Fix Oops a... |
420 |
#ifdef CONFIG_SND_PCM_XRUN_DEBUG |
1da177e4c Linux-2.6.12-rc2 |
421 |
unsigned int xrun_debug; /* 0 = disabled, 1 = verbose, 2 = stacktrace */ |
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422 |
struct snd_info_entry *proc_xrun_debug_entry; |
1da177e4c Linux-2.6.12-rc2 |
423 |
#endif |
b7d90a356 [ALSA] Fix Oops a... |
424 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
425 |
}; |
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426 427 |
struct snd_pcm { struct snd_card *card; |
f87135f56 [ALSA] dynamic mi... |
428 |
struct list_head list; |
f90c06a2b ALSA: Fix limit o... |
429 |
int device; /* device number */ |
1da177e4c Linux-2.6.12-rc2 |
430 431 432 433 434 |
unsigned int info_flags; unsigned short dev_class; unsigned short dev_subclass; char id[64]; char name[80]; |
877211f5e [ALSA] Remove xxx... |
435 |
struct snd_pcm_str streams[2]; |
1a60d4c5a [ALSA] semaphore ... |
436 |
struct mutex open_mutex; |
1da177e4c Linux-2.6.12-rc2 |
437 438 |
wait_queue_head_t open_wait; void *private_data; |
877211f5e [ALSA] Remove xxx... |
439 |
void (*private_free) (struct snd_pcm *pcm); |
c78085fcd [ALSA] alsa core:... |
440 |
struct device *dev; /* actual hw device this belongs to */ |
1da177e4c Linux-2.6.12-rc2 |
441 |
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) |
877211f5e [ALSA] Remove xxx... |
442 |
struct snd_pcm_oss oss; |
1da177e4c Linux-2.6.12-rc2 |
443 444 |
#endif }; |
877211f5e [ALSA] Remove xxx... |
445 446 447 448 |
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); |
1da177e4c Linux-2.6.12-rc2 |
449 |
struct list_head list; |
877211f5e [ALSA] Remove xxx... |
450 |
}; |
1da177e4c Linux-2.6.12-rc2 |
451 452 453 454 |
/* * Registering */ |
540473208 [PATCH] mark stru... |
455 |
extern const struct file_operations snd_pcm_f_ops[2]; |
1da177e4c Linux-2.6.12-rc2 |
456 |
|
e61616530 ALSA: snd_pcm_new... |
457 |
int snd_pcm_new(struct snd_card *card, const char *id, int device, |
1da177e4c Linux-2.6.12-rc2 |
458 |
int playback_count, int capture_count, |
877211f5e [ALSA] Remove xxx... |
459 460 |
struct snd_pcm **rpcm); int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count); |
1da177e4c Linux-2.6.12-rc2 |
461 |
|
877211f5e [ALSA] Remove xxx... |
462 |
int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree); |
1da177e4c Linux-2.6.12-rc2 |
463 464 465 466 467 468 |
/* * Native I/O */ extern rwlock_t snd_pcm_link_rwlock; |
877211f5e [ALSA] Remove xxx... |
469 470 471 472 473 |
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); |
877211f5e [ALSA] Remove xxx... |
474 |
int snd_pcm_start(struct snd_pcm_substream *substream); |
fea952e5c ALSA: core: spars... |
475 |
int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t status); |
877211f5e [ALSA] Remove xxx... |
476 |
int snd_pcm_drain_done(struct snd_pcm_substream *substream); |
1da177e4c Linux-2.6.12-rc2 |
477 |
#ifdef CONFIG_PM |
877211f5e [ALSA] Remove xxx... |
478 479 |
int snd_pcm_suspend(struct snd_pcm_substream *substream); int snd_pcm_suspend_all(struct snd_pcm *pcm); |
1da177e4c Linux-2.6.12-rc2 |
480 |
#endif |
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481 |
int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg); |
3bf75f9b9 [ALSA] Clean up P... |
482 483 |
int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct file *file, struct snd_pcm_substream **rsubstream); |
877211f5e [ALSA] Remove xxx... |
484 |
void snd_pcm_release_substream(struct snd_pcm_substream *substream); |
3bf75f9b9 [ALSA] Clean up P... |
485 486 487 |
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); |
1da177e4c Linux-2.6.12-rc2 |
488 |
void snd_pcm_vma_notify_data(void *client, void *data); |
877211f5e [ALSA] Remove xxx... |
489 |
int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area); |
1da177e4c Linux-2.6.12-rc2 |
490 |
|
acb03d440 ALSA: Make snd_pc... |
491 492 493 494 495 496 497 498 499 500 501 |
#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 |
1da177e4c Linux-2.6.12-rc2 |
502 503 504 |
/* * PCM library */ |
877211f5e [ALSA] Remove xxx... |
505 |
static inline int snd_pcm_stream_linked(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
506 507 508 |
{ return substream->group != &substream->self_group; } |
877211f5e [ALSA] Remove xxx... |
509 |
static inline void snd_pcm_stream_lock(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
510 511 512 513 |
{ read_lock(&snd_pcm_link_rwlock); spin_lock(&substream->self_group.lock); } |
877211f5e [ALSA] Remove xxx... |
514 |
static inline void snd_pcm_stream_unlock(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
515 516 517 518 |
{ spin_unlock(&substream->self_group.lock); read_unlock(&snd_pcm_link_rwlock); } |
877211f5e [ALSA] Remove xxx... |
519 |
static inline void snd_pcm_stream_lock_irq(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
520 521 522 523 |
{ read_lock_irq(&snd_pcm_link_rwlock); spin_lock(&substream->self_group.lock); } |
877211f5e [ALSA] Remove xxx... |
524 |
static inline void snd_pcm_stream_unlock_irq(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 |
{ 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) |
ef991b95a [ALSA] Add snd_pc... |
541 542 |
#define snd_pcm_group_for_each_entry(s, substream) \ list_for_each_entry(s, &substream->group->substreams, link_list) |
1da177e4c Linux-2.6.12-rc2 |
543 |
|
877211f5e [ALSA] Remove xxx... |
544 |
static inline int snd_pcm_running(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
545 546 547 548 549 |
{ return (substream->runtime->status->state == SNDRV_PCM_STATE_RUNNING || (substream->runtime->status->state == SNDRV_PCM_STATE_DRAINING && substream->stream == SNDRV_PCM_STREAM_PLAYBACK)); } |
877211f5e [ALSA] Remove xxx... |
550 |
static inline ssize_t bytes_to_samples(struct snd_pcm_runtime *runtime, ssize_t size) |
1da177e4c Linux-2.6.12-rc2 |
551 552 553 |
{ return size * 8 / runtime->sample_bits; } |
877211f5e [ALSA] Remove xxx... |
554 |
static inline snd_pcm_sframes_t bytes_to_frames(struct snd_pcm_runtime *runtime, ssize_t size) |
1da177e4c Linux-2.6.12-rc2 |
555 556 557 |
{ return size * 8 / runtime->frame_bits; } |
877211f5e [ALSA] Remove xxx... |
558 |
static inline ssize_t samples_to_bytes(struct snd_pcm_runtime *runtime, ssize_t size) |
1da177e4c Linux-2.6.12-rc2 |
559 560 561 |
{ return size * runtime->sample_bits / 8; } |
877211f5e [ALSA] Remove xxx... |
562 |
static inline ssize_t frames_to_bytes(struct snd_pcm_runtime *runtime, snd_pcm_sframes_t size) |
1da177e4c Linux-2.6.12-rc2 |
563 564 565 |
{ return size * runtime->frame_bits / 8; } |
877211f5e [ALSA] Remove xxx... |
566 |
static inline int frame_aligned(struct snd_pcm_runtime *runtime, ssize_t bytes) |
1da177e4c Linux-2.6.12-rc2 |
567 568 569 |
{ return bytes % runtime->byte_align == 0; } |
877211f5e [ALSA] Remove xxx... |
570 |
static inline size_t snd_pcm_lib_buffer_bytes(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
571 |
{ |
877211f5e [ALSA] Remove xxx... |
572 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
573 574 |
return frames_to_bytes(runtime, runtime->buffer_size); } |
877211f5e [ALSA] Remove xxx... |
575 |
static inline size_t snd_pcm_lib_period_bytes(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
576 |
{ |
877211f5e [ALSA] Remove xxx... |
577 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
578 579 580 581 582 583 |
return frames_to_bytes(runtime, runtime->period_size); } /* * result is: 0 ... (boundary - 1) */ |
877211f5e [ALSA] Remove xxx... |
584 |
static inline snd_pcm_uframes_t snd_pcm_playback_avail(struct snd_pcm_runtime *runtime) |
1da177e4c Linux-2.6.12-rc2 |
585 586 587 588 589 590 591 592 593 594 595 596 |
{ 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) */ |
877211f5e [ALSA] Remove xxx... |
597 |
static inline snd_pcm_uframes_t snd_pcm_capture_avail(struct snd_pcm_runtime *runtime) |
1da177e4c Linux-2.6.12-rc2 |
598 599 600 601 602 603 |
{ snd_pcm_sframes_t avail = runtime->status->hw_ptr - runtime->control->appl_ptr; if (avail < 0) avail += runtime->boundary; return avail; } |
877211f5e [ALSA] Remove xxx... |
604 |
static inline snd_pcm_sframes_t snd_pcm_playback_hw_avail(struct snd_pcm_runtime *runtime) |
1da177e4c Linux-2.6.12-rc2 |
605 606 607 |
{ return runtime->buffer_size - snd_pcm_playback_avail(runtime); } |
877211f5e [ALSA] Remove xxx... |
608 |
static inline snd_pcm_sframes_t snd_pcm_capture_hw_avail(struct snd_pcm_runtime *runtime) |
1da177e4c Linux-2.6.12-rc2 |
609 610 611 612 613 614 615 616 617 618 619 620 |
{ 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. */ |
877211f5e [ALSA] Remove xxx... |
621 |
static inline int snd_pcm_playback_ready(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
622 |
{ |
877211f5e [ALSA] Remove xxx... |
623 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
624 625 626 627 628 629 630 631 632 633 634 |
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. */ |
877211f5e [ALSA] Remove xxx... |
635 |
static inline int snd_pcm_capture_ready(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
636 |
{ |
877211f5e [ALSA] Remove xxx... |
637 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
638 639 640 641 642 643 644 645 646 647 648 649 |
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. */ |
877211f5e [ALSA] Remove xxx... |
650 |
static inline int snd_pcm_playback_data(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
651 |
{ |
877211f5e [ALSA] Remove xxx... |
652 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
653 654 655 656 657 658 659 660 661 662 663 664 665 666 |
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. */ |
877211f5e [ALSA] Remove xxx... |
667 |
static inline int snd_pcm_playback_empty(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
668 |
{ |
877211f5e [ALSA] Remove xxx... |
669 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
670 671 672 673 674 675 676 677 678 679 680 |
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. */ |
877211f5e [ALSA] Remove xxx... |
681 |
static inline int snd_pcm_capture_empty(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
682 |
{ |
877211f5e [ALSA] Remove xxx... |
683 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
684 685 |
return snd_pcm_capture_avail(runtime) == 0; } |
877211f5e [ALSA] Remove xxx... |
686 687 |
static inline void snd_pcm_trigger_done(struct snd_pcm_substream *substream, struct snd_pcm_substream *master) |
1da177e4c Linux-2.6.12-rc2 |
688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 |
{ 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; } |
877211f5e [ALSA] Remove xxx... |
703 |
static inline struct snd_mask *hw_param_mask(struct snd_pcm_hw_params *params, |
1da177e4c Linux-2.6.12-rc2 |
704 705 706 707 |
snd_pcm_hw_param_t var) { return ¶ms->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; } |
877211f5e [ALSA] Remove xxx... |
708 |
static inline struct snd_interval *hw_param_interval(struct snd_pcm_hw_params *params, |
1da177e4c Linux-2.6.12-rc2 |
709 710 711 712 |
snd_pcm_hw_param_t var) { return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; } |
877211f5e [ALSA] Remove xxx... |
713 |
static inline const struct snd_mask *hw_param_mask_c(const struct snd_pcm_hw_params *params, |
1da177e4c Linux-2.6.12-rc2 |
714 715 |
snd_pcm_hw_param_t var) { |
b9f09a485 [ALSA] Fix 'disca... |
716 |
return ¶ms->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; |
1da177e4c Linux-2.6.12-rc2 |
717 |
} |
877211f5e [ALSA] Remove xxx... |
718 |
static inline const struct snd_interval *hw_param_interval_c(const struct snd_pcm_hw_params *params, |
1da177e4c Linux-2.6.12-rc2 |
719 720 |
snd_pcm_hw_param_t var) { |
b9f09a485 [ALSA] Fix 'disca... |
721 |
return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; |
1da177e4c Linux-2.6.12-rc2 |
722 |
} |
b51beb756 ALSA: Make pcm.h ... |
723 724 725 726 727 728 729 730 731 732 733 734 |
#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) |
1da177e4c Linux-2.6.12-rc2 |
735 |
|
877211f5e [ALSA] Remove xxx... |
736 737 738 739 740 741 742 743 744 745 |
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, unsigned int *list, unsigned int mask); int snd_interval_ratnum(struct snd_interval *i, unsigned int rats_count, struct snd_ratnum *rats, |
1da177e4c Linux-2.6.12-rc2 |
746 |
unsigned int *nump, unsigned int *denp); |
877211f5e [ALSA] Remove xxx... |
747 748 |
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); |
877211f5e [ALSA] Remove xxx... |
749 |
int snd_pcm_hw_params_choose(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params); |
1da177e4c Linux-2.6.12-rc2 |
750 |
|
877211f5e [ALSA] Remove xxx... |
751 |
int snd_pcm_hw_refine(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params); |
1da177e4c Linux-2.6.12-rc2 |
752 |
|
877211f5e [ALSA] Remove xxx... |
753 754 |
int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream); int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream); |
1da177e4c Linux-2.6.12-rc2 |
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|
877211f5e [ALSA] Remove xxx... |
756 |
int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, |
1da177e4c Linux-2.6.12-rc2 |
757 |
u_int32_t mask); |
877211f5e [ALSA] Remove xxx... |
758 |
int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, |
1da177e4c Linux-2.6.12-rc2 |
759 |
u_int64_t mask); |
877211f5e [ALSA] Remove xxx... |
760 |
int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var, |
1da177e4c Linux-2.6.12-rc2 |
761 |
unsigned int min, unsigned int max); |
877211f5e [ALSA] Remove xxx... |
762 763 |
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, |
1da177e4c Linux-2.6.12-rc2 |
764 765 |
unsigned int cond, snd_pcm_hw_param_t var, |
877211f5e [ALSA] Remove xxx... |
766 767 |
struct snd_pcm_hw_constraint_list *l); int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime, |
1da177e4c Linux-2.6.12-rc2 |
768 769 |
unsigned int cond, snd_pcm_hw_param_t var, |
877211f5e [ALSA] Remove xxx... |
770 771 |
struct snd_pcm_hw_constraint_ratnums *r); int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime, |
1da177e4c Linux-2.6.12-rc2 |
772 773 |
unsigned int cond, snd_pcm_hw_param_t var, |
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774 775 |
struct snd_pcm_hw_constraint_ratdens *r); int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime, |
1da177e4c Linux-2.6.12-rc2 |
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unsigned int cond, unsigned int width, unsigned int msbits); |
877211f5e [ALSA] Remove xxx... |
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int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime, |
1da177e4c Linux-2.6.12-rc2 |
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unsigned int cond, snd_pcm_hw_param_t var, unsigned long step); |
877211f5e [ALSA] Remove xxx... |
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int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime, |
1da177e4c Linux-2.6.12-rc2 |
784 785 |
unsigned int cond, snd_pcm_hw_param_t var); |
d5b702a64 ALSA: pcm: add sn... |
786 787 |
int snd_pcm_hw_rule_noresample(struct snd_pcm_runtime *runtime, unsigned int base_rate); |
877211f5e [ALSA] Remove xxx... |
788 |
int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, |
1da177e4c Linux-2.6.12-rc2 |
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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); |
1b44c28dc [ALSA] Another fi... |
799 800 |
#if 0 /* just for DocBook */ /** |
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* 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. */ |
8cdfd2519 [ALSA] Remove sup... |
807 |
int snd_pcm_format_cpu_endian(snd_pcm_format_t format); |
1b44c28dc [ALSA] Another fi... |
808 |
#endif /* DocBook */ |
9502dcad6 [ALSA] Export mis... |
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#ifdef SNDRV_LITTLE_ENDIAN |
9d01a82e4 [PATCH] DocBook: ... |
810 |
#define snd_pcm_format_cpu_endian(format) snd_pcm_format_little_endian(format) |
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811 |
#else |
9d01a82e4 [PATCH] DocBook: ... |
812 |
#define snd_pcm_format_cpu_endian(format) snd_pcm_format_big_endian(format) |
9502dcad6 [ALSA] Export mis... |
813 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
814 815 |
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 */ |
9502dcad6 [ALSA] Export mis... |
816 |
ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples); |
1da177e4c Linux-2.6.12-rc2 |
817 818 819 |
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); |
1da177e4c Linux-2.6.12-rc2 |
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|
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821 822 823 824 |
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, |
1da177e4c Linux-2.6.12-rc2 |
825 |
unsigned int cmd, void *arg); |
1250932e4 ALSA: pcm_lib - o... |
826 827 |
int snd_pcm_update_state(struct snd_pcm_substream *substream, struct snd_pcm_runtime *runtime); |
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828 829 830 831 832 833 |
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); |
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834 835 |
void snd_pcm_period_elapsed(struct snd_pcm_substream *substream); snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
836 837 |
const void __user *buf, snd_pcm_uframes_t frames); |
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838 |
snd_pcm_sframes_t snd_pcm_lib_read(struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
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void __user *buf, snd_pcm_uframes_t frames); |
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840 |
snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
841 |
void __user **bufs, snd_pcm_uframes_t frames); |
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842 |
snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
843 |
void __user **bufs, snd_pcm_uframes_t frames); |
7653d5576 [ALSA] pcm: merge... |
844 |
extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates; |
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int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime); |
918f3a0e8 [ALSA] pcm: add s... |
846 |
unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate); |
1da177e4c Linux-2.6.12-rc2 |
847 |
|
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848 |
static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
849 850 |
struct snd_dma_buffer *bufp) { |
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struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
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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 */ |
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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); |
1da177e4c Linux-2.6.12-rc2 |
871 |
|
b751eef1f [ALSA] Use posix ... |
872 873 874 875 876 877 878 879 |
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); } |
1da177e4c Linux-2.6.12-rc2 |
880 881 882 |
/* * Memory */ |
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883 884 885 |
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, |
1da177e4c Linux-2.6.12-rc2 |
886 887 |
int type, struct device *data, size_t size, size_t max); |
877211f5e [ALSA] Remove xxx... |
888 |
int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm, |
1da177e4c Linux-2.6.12-rc2 |
889 890 |
int type, void *data, size_t size, size_t max); |
877211f5e [ALSA] Remove xxx... |
891 892 |
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); |
1da177e4c Linux-2.6.12-rc2 |
893 |
|
681b84e17 sound: pcm: add v... |
894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 |
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) |
cc6a8acde ALSA: Fix SG-buff... |
931 |
#ifdef CONFIG_SND_DMA_SGBUF |
77a23f269 ALSA: Clean up SG... |
932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 |
/* * 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); |
51e9f2e66 ALSA: Allocate la... |
954 955 |
unsigned int snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream, unsigned int ofs, unsigned int size); |
1da177e4c Linux-2.6.12-rc2 |
956 |
|
cc6a8acde ALSA: Fix SG-buff... |
957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 |
#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 */ |
1da177e4c Linux-2.6.12-rc2 |
978 979 980 |
/* handle mmap counter - PCM mmap callback should handle this counter properly */ static inline void snd_pcm_mmap_data_open(struct vm_area_struct *area) { |
877211f5e [ALSA] Remove xxx... |
981 |
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data; |
9c323fcbc [ALSA] Fix mmap_c... |
982 |
atomic_inc(&substream->mmap_count); |
1da177e4c Linux-2.6.12-rc2 |
983 984 985 986 |
} static inline void snd_pcm_mmap_data_close(struct vm_area_struct *area) { |
877211f5e [ALSA] Remove xxx... |
987 |
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data; |
9c323fcbc [ALSA] Fix mmap_c... |
988 |
atomic_dec(&substream->mmap_count); |
1da177e4c Linux-2.6.12-rc2 |
989 |
} |
18a2b9623 ALSA: pcm - Expor... |
990 991 |
int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *area); |
1da177e4c Linux-2.6.12-rc2 |
992 993 994 |
/* 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 |
877211f5e [ALSA] Remove xxx... |
995 |
int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_struct *area); |
1da177e4c Linux-2.6.12-rc2 |
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#else #define SNDRV_PCM_INFO_MMAP_IOMEM 0 #define snd_pcm_lib_mmap_iomem NULL #endif |
3674f19da ALSA: vmalloc buf... |
1000 |
#define snd_pcm_lib_mmap_vmalloc NULL |
c32d977b8 ALSA: pcm - Call ... |
1001 |
|
1da177e4c Linux-2.6.12-rc2 |
1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 |
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)) |
7eaa943c8 ALSA: Kill snd_as... |
1015 |
#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime) |
6e5265ec3 ALSA: Re-export s... |
1016 |
const char *snd_pcm_format_name(snd_pcm_format_t format); |
1da177e4c Linux-2.6.12-rc2 |
1017 |
#endif /* __SOUND_PCM_H */ |