1/* 2 * Advanced Linux Sound Architecture - ALSA - Driver 3 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>, 4 * Abramo Bagnara <abramo@alsa-project.org> 5 * 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22 23#ifndef _UAPI__SOUND_ASOUND_H 24#define _UAPI__SOUND_ASOUND_H 25 26#include <linux/types.h> 27 28 29/* 30 * protocol version 31 */ 32 33#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 34#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 35#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 36#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 37#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 38 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 39 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 40 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 41 42/**************************************************************************** 43 * * 44 * Digital audio interface * 45 * * 46 ****************************************************************************/ 47 48struct snd_aes_iec958 { 49 unsigned char status[24]; /* AES/IEC958 channel status bits */ 50 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 51 unsigned char pad; /* nothing */ 52 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 53}; 54 55/**************************************************************************** 56 * * 57 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 58 * * 59 ****************************************************************************/ 60 61struct snd_cea_861_aud_if { 62 unsigned char db1_ct_cc; /* coding type and channel count */ 63 unsigned char db2_sf_ss; /* sample frequency and size */ 64 unsigned char db3; /* not used, all zeros */ 65 unsigned char db4_ca; /* channel allocation code */ 66 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 67}; 68 69/**************************************************************************** 70 * * 71 * Section for driver hardware dependent interface - /dev/snd/hw? * 72 * * 73 ****************************************************************************/ 74 75#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 76 77enum { 78 SNDRV_HWDEP_IFACE_OPL2 = 0, 79 SNDRV_HWDEP_IFACE_OPL3, 80 SNDRV_HWDEP_IFACE_OPL4, 81 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 82 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 83 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 84 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 85 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 86 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 87 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 88 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 89 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 90 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 91 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 92 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 93 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 94 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 95 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 96 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 97 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 98 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 99 100 /* Don't forget to change the following: */ 101 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_BEBOB 102}; 103 104struct snd_hwdep_info { 105 unsigned int device; /* WR: device number */ 106 int card; /* R: card number */ 107 unsigned char id[64]; /* ID (user selectable) */ 108 unsigned char name[80]; /* hwdep name */ 109 int iface; /* hwdep interface */ 110 unsigned char reserved[64]; /* reserved for future */ 111}; 112 113/* generic DSP loader */ 114struct snd_hwdep_dsp_status { 115 unsigned int version; /* R: driver-specific version */ 116 unsigned char id[32]; /* R: driver-specific ID string */ 117 unsigned int num_dsps; /* R: number of DSP images to transfer */ 118 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 119 unsigned int chip_ready; /* R: 1 = initialization finished */ 120 unsigned char reserved[16]; /* reserved for future use */ 121}; 122 123struct snd_hwdep_dsp_image { 124 unsigned int index; /* W: DSP index */ 125 unsigned char name[64]; /* W: ID (e.g. file name) */ 126 unsigned char __user *image; /* W: binary image */ 127 size_t length; /* W: size of image in bytes */ 128 unsigned long driver_data; /* W: driver-specific data */ 129}; 130 131#define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 132#define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 133#define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 134#define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 135 136/***************************************************************************** 137 * * 138 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 139 * * 140 *****************************************************************************/ 141 142#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 12) 143 144typedef unsigned long snd_pcm_uframes_t; 145typedef signed long snd_pcm_sframes_t; 146 147enum { 148 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 149 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 150 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 151 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 152 /* Don't forget to change the following: */ 153 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 154}; 155 156enum { 157 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 158 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 159 /* Don't forget to change the following: */ 160 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 161}; 162 163enum { 164 SNDRV_PCM_STREAM_PLAYBACK = 0, 165 SNDRV_PCM_STREAM_CAPTURE, 166 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 167}; 168 169typedef int __bitwise snd_pcm_access_t; 170#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 171#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 172#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 173#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 174#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 175#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 176 177typedef int __bitwise snd_pcm_format_t; 178#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 179#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 180#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 181#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 182#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 183#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 184#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 185#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 186#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 187#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 188#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 189#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 190#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 191#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 192#define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 193#define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 194#define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 195#define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 196#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 197#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 198#define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 199#define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 200#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 201#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 202#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 203#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 204#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 205#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 206#define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 207#define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 208#define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 209#define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 210#define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 211#define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 212#define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 213#define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 214#define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 215#define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 216#define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 217#define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 218#define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 219#define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 220#define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 221#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 222#define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 223#define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 224#define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 225#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 226 227#ifdef SNDRV_LITTLE_ENDIAN 228#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 229#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 230#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 231#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 232#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 233#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 234#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 235#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 236#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 237#endif 238#ifdef SNDRV_BIG_ENDIAN 239#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 240#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 241#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 242#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 243#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 244#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 245#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 246#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 247#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 248#endif 249 250typedef int __bitwise snd_pcm_subformat_t; 251#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 252#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 253 254#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 255#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 256#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 257#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 258#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 259#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 260#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 261#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 262#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 263#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 264#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 265#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 266#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 267#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 268#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 269#define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* has audio wall clock for audio/system time sync */ 270#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 271 272typedef int __bitwise snd_pcm_state_t; 273#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 274#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 275#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 276#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 277#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 278#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 279#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 280#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 281#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 282#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 283 284enum { 285 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 286 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 287 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 288}; 289 290union snd_pcm_sync_id { 291 unsigned char id[16]; 292 unsigned short id16[8]; 293 unsigned int id32[4]; 294}; 295 296struct snd_pcm_info { 297 unsigned int device; /* RO/WR (control): device number */ 298 unsigned int subdevice; /* RO/WR (control): subdevice number */ 299 int stream; /* RO/WR (control): stream direction */ 300 int card; /* R: card number */ 301 unsigned char id[64]; /* ID (user selectable) */ 302 unsigned char name[80]; /* name of this device */ 303 unsigned char subname[32]; /* subdevice name */ 304 int dev_class; /* SNDRV_PCM_CLASS_* */ 305 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 306 unsigned int subdevices_count; 307 unsigned int subdevices_avail; 308 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 309 unsigned char reserved[64]; /* reserved for future... */ 310}; 311 312typedef int snd_pcm_hw_param_t; 313#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 314#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 315#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 316#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 317#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 318 319#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 320#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 321#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 322#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 323#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 324 * interrupts in us 325 */ 326#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 327 * interrupts 328 */ 329#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 330 * interrupts 331 */ 332#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 333 * buffer 334 */ 335#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 336 * in us 337 */ 338#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 339#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 340#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 341#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 342#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 343 344#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 345#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 346#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 347 348struct snd_interval { 349 unsigned int min, max; 350 unsigned int openmin:1, 351 openmax:1, 352 integer:1, 353 empty:1; 354}; 355 356#define SNDRV_MASK_MAX 256 357 358struct snd_mask { 359 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 360}; 361 362struct snd_pcm_hw_params { 363 unsigned int flags; 364 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 365 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 366 struct snd_mask mres[5]; /* reserved masks */ 367 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 368 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 369 struct snd_interval ires[9]; /* reserved intervals */ 370 unsigned int rmask; /* W: requested masks */ 371 unsigned int cmask; /* R: changed masks */ 372 unsigned int info; /* R: Info flags for returned setup */ 373 unsigned int msbits; /* R: used most significant bits */ 374 unsigned int rate_num; /* R: rate numerator */ 375 unsigned int rate_den; /* R: rate denominator */ 376 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 377 unsigned char reserved[64]; /* reserved for future */ 378}; 379 380enum { 381 SNDRV_PCM_TSTAMP_NONE = 0, 382 SNDRV_PCM_TSTAMP_ENABLE, 383 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 384}; 385 386struct snd_pcm_sw_params { 387 int tstamp_mode; /* timestamp mode */ 388 unsigned int period_step; 389 unsigned int sleep_min; /* min ticks to sleep */ 390 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 391 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 392 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 393 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 394 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 395 snd_pcm_uframes_t silence_size; /* silence block size */ 396 snd_pcm_uframes_t boundary; /* pointers wrap point */ 397 unsigned int proto; /* protocol version */ 398 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 399 unsigned char reserved[56]; /* reserved for future */ 400}; 401 402struct snd_pcm_channel_info { 403 unsigned int channel; 404 __kernel_off_t offset; /* mmap offset */ 405 unsigned int first; /* offset to first sample in bits */ 406 unsigned int step; /* samples distance in bits */ 407}; 408 409struct snd_pcm_status { 410 snd_pcm_state_t state; /* stream state */ 411 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 412 struct timespec tstamp; /* reference timestamp */ 413 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 414 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 415 snd_pcm_sframes_t delay; /* current delay in frames */ 416 snd_pcm_uframes_t avail; /* number of frames available */ 417 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 418 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 419 snd_pcm_state_t suspended_state; /* suspended stream state */ 420 __u32 reserved_alignment; /* must be filled with zero */ 421 struct timespec audio_tstamp; /* from sample counter or wall clock */ 422 unsigned char reserved[56-sizeof(struct timespec)]; /* must be filled with zero */ 423}; 424 425struct snd_pcm_mmap_status { 426 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 427 int pad1; /* Needed for 64 bit alignment */ 428 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 429 struct timespec tstamp; /* Timestamp */ 430 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 431 struct timespec audio_tstamp; /* from sample counter or wall clock */ 432}; 433 434struct snd_pcm_mmap_control { 435 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 436 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 437}; 438 439#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 440#define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 441#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 442 443struct snd_pcm_sync_ptr { 444 unsigned int flags; 445 union { 446 struct snd_pcm_mmap_status status; 447 unsigned char reserved[64]; 448 } s; 449 union { 450 struct snd_pcm_mmap_control control; 451 unsigned char reserved[64]; 452 } c; 453}; 454 455struct snd_xferi { 456 snd_pcm_sframes_t result; 457 void __user *buf; 458 snd_pcm_uframes_t frames; 459}; 460 461struct snd_xfern { 462 snd_pcm_sframes_t result; 463 void __user * __user *bufs; 464 snd_pcm_uframes_t frames; 465}; 466 467enum { 468 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 469 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 470 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 471 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 472}; 473 474/* channel positions */ 475enum { 476 SNDRV_CHMAP_UNKNOWN = 0, 477 SNDRV_CHMAP_NA, /* N/A, silent */ 478 SNDRV_CHMAP_MONO, /* mono stream */ 479 /* this follows the alsa-lib mixer channel value + 3 */ 480 SNDRV_CHMAP_FL, /* front left */ 481 SNDRV_CHMAP_FR, /* front right */ 482 SNDRV_CHMAP_RL, /* rear left */ 483 SNDRV_CHMAP_RR, /* rear right */ 484 SNDRV_CHMAP_FC, /* front center */ 485 SNDRV_CHMAP_LFE, /* LFE */ 486 SNDRV_CHMAP_SL, /* side left */ 487 SNDRV_CHMAP_SR, /* side right */ 488 SNDRV_CHMAP_RC, /* rear center */ 489 /* new definitions */ 490 SNDRV_CHMAP_FLC, /* front left center */ 491 SNDRV_CHMAP_FRC, /* front right center */ 492 SNDRV_CHMAP_RLC, /* rear left center */ 493 SNDRV_CHMAP_RRC, /* rear right center */ 494 SNDRV_CHMAP_FLW, /* front left wide */ 495 SNDRV_CHMAP_FRW, /* front right wide */ 496 SNDRV_CHMAP_FLH, /* front left high */ 497 SNDRV_CHMAP_FCH, /* front center high */ 498 SNDRV_CHMAP_FRH, /* front right high */ 499 SNDRV_CHMAP_TC, /* top center */ 500 SNDRV_CHMAP_TFL, /* top front left */ 501 SNDRV_CHMAP_TFR, /* top front right */ 502 SNDRV_CHMAP_TFC, /* top front center */ 503 SNDRV_CHMAP_TRL, /* top rear left */ 504 SNDRV_CHMAP_TRR, /* top rear right */ 505 SNDRV_CHMAP_TRC, /* top rear center */ 506 /* new definitions for UAC2 */ 507 SNDRV_CHMAP_TFLC, /* top front left center */ 508 SNDRV_CHMAP_TFRC, /* top front right center */ 509 SNDRV_CHMAP_TSL, /* top side left */ 510 SNDRV_CHMAP_TSR, /* top side right */ 511 SNDRV_CHMAP_LLFE, /* left LFE */ 512 SNDRV_CHMAP_RLFE, /* right LFE */ 513 SNDRV_CHMAP_BC, /* bottom center */ 514 SNDRV_CHMAP_BLC, /* bottom left center */ 515 SNDRV_CHMAP_BRC, /* bottom right center */ 516 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 517}; 518 519#define SNDRV_CHMAP_POSITION_MASK 0xffff 520#define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 521#define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 522 523#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 524#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 525#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 526#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 527#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 528#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 529#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 530#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 531#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 532#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 533#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 534#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 535#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 536#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 537#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 538#define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 539#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 540#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 541#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 542#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 543#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 544#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 545#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 546#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 547#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 548#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 549#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 550#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 551#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 552 553/***************************************************************************** 554 * * 555 * MIDI v1.0 interface * 556 * * 557 *****************************************************************************/ 558 559/* 560 * Raw MIDI section - /dev/snd/midi?? 561 */ 562 563#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 564 565enum { 566 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 567 SNDRV_RAWMIDI_STREAM_INPUT, 568 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 569}; 570 571#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 572#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 573#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 574 575struct snd_rawmidi_info { 576 unsigned int device; /* RO/WR (control): device number */ 577 unsigned int subdevice; /* RO/WR (control): subdevice number */ 578 int stream; /* WR: stream */ 579 int card; /* R: card number */ 580 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 581 unsigned char id[64]; /* ID (user selectable) */ 582 unsigned char name[80]; /* name of device */ 583 unsigned char subname[32]; /* name of active or selected subdevice */ 584 unsigned int subdevices_count; 585 unsigned int subdevices_avail; 586 unsigned char reserved[64]; /* reserved for future use */ 587}; 588 589struct snd_rawmidi_params { 590 int stream; 591 size_t buffer_size; /* queue size in bytes */ 592 size_t avail_min; /* minimum avail bytes for wakeup */ 593 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 594 unsigned char reserved[16]; /* reserved for future use */ 595}; 596 597struct snd_rawmidi_status { 598 int stream; 599 struct timespec tstamp; /* Timestamp */ 600 size_t avail; /* available bytes */ 601 size_t xruns; /* count of overruns since last status (in bytes) */ 602 unsigned char reserved[16]; /* reserved for future use */ 603}; 604 605#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 606#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 607#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 608#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 609#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 610#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 611 612/* 613 * Timer section - /dev/snd/timer 614 */ 615 616#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 617 618enum { 619 SNDRV_TIMER_CLASS_NONE = -1, 620 SNDRV_TIMER_CLASS_SLAVE = 0, 621 SNDRV_TIMER_CLASS_GLOBAL, 622 SNDRV_TIMER_CLASS_CARD, 623 SNDRV_TIMER_CLASS_PCM, 624 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 625}; 626 627/* slave timer classes */ 628enum { 629 SNDRV_TIMER_SCLASS_NONE = 0, 630 SNDRV_TIMER_SCLASS_APPLICATION, 631 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 632 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 633 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 634}; 635 636/* global timers (device member) */ 637#define SNDRV_TIMER_GLOBAL_SYSTEM 0 638#define SNDRV_TIMER_GLOBAL_RTC 1 639#define SNDRV_TIMER_GLOBAL_HPET 2 640#define SNDRV_TIMER_GLOBAL_HRTIMER 3 641 642/* info flags */ 643#define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 644 645struct snd_timer_id { 646 int dev_class; 647 int dev_sclass; 648 int card; 649 int device; 650 int subdevice; 651}; 652 653struct snd_timer_ginfo { 654 struct snd_timer_id tid; /* requested timer ID */ 655 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 656 int card; /* card number */ 657 unsigned char id[64]; /* timer identification */ 658 unsigned char name[80]; /* timer name */ 659 unsigned long reserved0; /* reserved for future use */ 660 unsigned long resolution; /* average period resolution in ns */ 661 unsigned long resolution_min; /* minimal period resolution in ns */ 662 unsigned long resolution_max; /* maximal period resolution in ns */ 663 unsigned int clients; /* active timer clients */ 664 unsigned char reserved[32]; 665}; 666 667struct snd_timer_gparams { 668 struct snd_timer_id tid; /* requested timer ID */ 669 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 670 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 671 unsigned char reserved[32]; 672}; 673 674struct snd_timer_gstatus { 675 struct snd_timer_id tid; /* requested timer ID */ 676 unsigned long resolution; /* current period resolution in ns */ 677 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 678 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 679 unsigned char reserved[32]; 680}; 681 682struct snd_timer_select { 683 struct snd_timer_id id; /* bind to timer ID */ 684 unsigned char reserved[32]; /* reserved */ 685}; 686 687struct snd_timer_info { 688 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 689 int card; /* card number */ 690 unsigned char id[64]; /* timer identificator */ 691 unsigned char name[80]; /* timer name */ 692 unsigned long reserved0; /* reserved for future use */ 693 unsigned long resolution; /* average period resolution in ns */ 694 unsigned char reserved[64]; /* reserved */ 695}; 696 697#define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 698#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 699#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 700 701struct snd_timer_params { 702 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 703 unsigned int ticks; /* requested resolution in ticks */ 704 unsigned int queue_size; /* total size of queue (32-1024) */ 705 unsigned int reserved0; /* reserved, was: failure locations */ 706 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 707 unsigned char reserved[60]; /* reserved */ 708}; 709 710struct snd_timer_status { 711 struct timespec tstamp; /* Timestamp - last update */ 712 unsigned int resolution; /* current period resolution in ns */ 713 unsigned int lost; /* counter of master tick lost */ 714 unsigned int overrun; /* count of read queue overruns */ 715 unsigned int queue; /* used queue size */ 716 unsigned char reserved[64]; /* reserved */ 717}; 718 719#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 720#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 721#define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) 722#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 723#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 724#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 725#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 726#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 727#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 728#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 729/* The following four ioctls are changed since 1.0.9 due to confliction */ 730#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 731#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 732#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 733#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 734 735struct snd_timer_read { 736 unsigned int resolution; 737 unsigned int ticks; 738}; 739 740enum { 741 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 742 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 743 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 744 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 745 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 746 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 747 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 748 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 749 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 750 /* master timer events for slave timer instances */ 751 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 752 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 753 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 754 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 755 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 756 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 757}; 758 759struct snd_timer_tread { 760 int event; 761 struct timespec tstamp; 762 unsigned int val; 763}; 764 765/**************************************************************************** 766 * * 767 * Section for driver control interface - /dev/snd/control? * 768 * * 769 ****************************************************************************/ 770 771#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 772 773struct snd_ctl_card_info { 774 int card; /* card number */ 775 int pad; /* reserved for future (was type) */ 776 unsigned char id[16]; /* ID of card (user selectable) */ 777 unsigned char driver[16]; /* Driver name */ 778 unsigned char name[32]; /* Short name of soundcard */ 779 unsigned char longname[80]; /* name + info text about soundcard */ 780 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 781 unsigned char mixername[80]; /* visual mixer identification */ 782 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 783}; 784 785typedef int __bitwise snd_ctl_elem_type_t; 786#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 787#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 788#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 789#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 790#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 791#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 792#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 793#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 794 795typedef int __bitwise snd_ctl_elem_iface_t; 796#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 797#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 798#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 799#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 800#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 801#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 802#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 803#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 804 805#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 806#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 807#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 808#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 809#define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 810#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 811#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 812#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 813#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 814#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 815#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 816#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 817#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 818#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 819/* bits 30 and 31 are obsoleted (for indirect access) */ 820 821/* for further details see the ACPI and PCI power management specification */ 822#define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 823#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 824#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 825#define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 826#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 827#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 828 829#define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 830 831struct snd_ctl_elem_id { 832 unsigned int numid; /* numeric identifier, zero = invalid */ 833 snd_ctl_elem_iface_t iface; /* interface identifier */ 834 unsigned int device; /* device/client number */ 835 unsigned int subdevice; /* subdevice (substream) number */ 836 unsigned char name[44]; /* ASCII name of item */ 837 unsigned int index; /* index of item */ 838}; 839 840struct snd_ctl_elem_list { 841 unsigned int offset; /* W: first element ID to get */ 842 unsigned int space; /* W: count of element IDs to get */ 843 unsigned int used; /* R: count of element IDs set */ 844 unsigned int count; /* R: count of all elements */ 845 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 846 unsigned char reserved[50]; 847}; 848 849struct snd_ctl_elem_info { 850 struct snd_ctl_elem_id id; /* W: element ID */ 851 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 852 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 853 unsigned int count; /* count of values */ 854 __kernel_pid_t owner; /* owner's PID of this control */ 855 union { 856 struct { 857 long min; /* R: minimum value */ 858 long max; /* R: maximum value */ 859 long step; /* R: step (0 variable) */ 860 } integer; 861 struct { 862 long long min; /* R: minimum value */ 863 long long max; /* R: maximum value */ 864 long long step; /* R: step (0 variable) */ 865 } integer64; 866 struct { 867 unsigned int items; /* R: number of items */ 868 unsigned int item; /* W: item number */ 869 char name[64]; /* R: value name */ 870 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 871 unsigned int names_length; 872 } enumerated; 873 unsigned char reserved[128]; 874 } value; 875 union { 876 unsigned short d[4]; /* dimensions */ 877 unsigned short *d_ptr; /* indirect - obsoleted */ 878 } dimen; 879 unsigned char reserved[64-4*sizeof(unsigned short)]; 880}; 881 882struct snd_ctl_elem_value { 883 struct snd_ctl_elem_id id; /* W: element ID */ 884 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 885 union { 886 union { 887 long value[128]; 888 long *value_ptr; /* obsoleted */ 889 } integer; 890 union { 891 long long value[64]; 892 long long *value_ptr; /* obsoleted */ 893 } integer64; 894 union { 895 unsigned int item[128]; 896 unsigned int *item_ptr; /* obsoleted */ 897 } enumerated; 898 union { 899 unsigned char data[512]; 900 unsigned char *data_ptr; /* obsoleted */ 901 } bytes; 902 struct snd_aes_iec958 iec958; 903 } value; /* RO */ 904 struct timespec tstamp; 905 unsigned char reserved[128-sizeof(struct timespec)]; 906}; 907 908struct snd_ctl_tlv { 909 unsigned int numid; /* control element numeric identification */ 910 unsigned int length; /* in bytes aligned to 4 */ 911 unsigned int tlv[0]; /* first TLV */ 912}; 913 914#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 915#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 916#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 917#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 918#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 919#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 920#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 921#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 922#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 923#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 924#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 925#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 926#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 927#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 928#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 929#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 930#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 931#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 932#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 933#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 934#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 935#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 936#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 937#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 938#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 939 940/* 941 * Read interface. 942 */ 943 944enum sndrv_ctl_event_type { 945 SNDRV_CTL_EVENT_ELEM = 0, 946 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 947}; 948 949#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 950#define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 951#define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 952#define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 953#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 954 955struct snd_ctl_event { 956 int type; /* event type - SNDRV_CTL_EVENT_* */ 957 union { 958 struct { 959 unsigned int mask; 960 struct snd_ctl_elem_id id; 961 } elem; 962 unsigned char data8[60]; 963 } data; 964}; 965 966/* 967 * Control names 968 */ 969 970#define SNDRV_CTL_NAME_NONE "" 971#define SNDRV_CTL_NAME_PLAYBACK "Playback " 972#define SNDRV_CTL_NAME_CAPTURE "Capture " 973 974#define SNDRV_CTL_NAME_IEC958_NONE "" 975#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 976#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 977#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 978#define SNDRV_CTL_NAME_IEC958_MASK "Mask" 979#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 980#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 981#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 982#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 983 984#endif /* _UAPI__SOUND_ASOUND_H */ 985