1 /* 2 * Advanced Linux Sound Architecture - ALSA - Driver 3 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@suse.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 __SOUND_ASOUND_H 24 #define __SOUND_ASOUND_H 25 26 #ifdef __KERNEL__ 27 #include <linux/ioctl.h> 28 #include <linux/types.h> 29 #include <linux/time.h> 30 #include <asm/byteorder.h> 31 32 #ifdef __LITTLE_ENDIAN 33 #define SNDRV_LITTLE_ENDIAN 34 #else 35 #ifdef __BIG_ENDIAN 36 #define SNDRV_BIG_ENDIAN 37 #else 38 #error "Unsupported endian..." 39 #endif 40 #endif 41 42 #endif /* __KERNEL__ **/ 43 44 /* 45 * protocol version 46 */ 47 48 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 49 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 50 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 51 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 52 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 53 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 54 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 55 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 56 57 /**************************************************************************** 58 * * 59 * Digital audio interface * 60 * * 61 ****************************************************************************/ 62 63 struct sndrv_aes_iec958 { 64 unsigned char status[24]; /* AES/IEC958 channel status bits */ 65 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 66 unsigned char pad; /* nothing */ 67 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 68 }; 69 70 /**************************************************************************** 71 * * 72 * Section for driver hardware dependent interface - /dev/snd/hw? * 73 * * 74 ****************************************************************************/ 75 76 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 77 78 enum sndrv_hwdep_iface { 79 SNDRV_HWDEP_IFACE_OPL2 = 0, 80 SNDRV_HWDEP_IFACE_OPL3, 81 SNDRV_HWDEP_IFACE_OPL4, 82 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 83 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 84 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 85 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 86 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 87 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 88 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 89 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 90 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 91 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 92 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 93 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 94 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 95 96 /* Don't forget to change the following: */ 97 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_SB_RC 98 }; 99 100 struct sndrv_hwdep_info { 101 unsigned int device; /* WR: device number */ 102 int card; /* R: card number */ 103 unsigned char id[64]; /* ID (user selectable) */ 104 unsigned char name[80]; /* hwdep name */ 105 enum sndrv_hwdep_iface iface; /* hwdep interface */ 106 unsigned char reserved[64]; /* reserved for future */ 107 }; 108 109 /* generic DSP loader */ 110 struct sndrv_hwdep_dsp_status { 111 unsigned int version; /* R: driver-specific version */ 112 unsigned char id[32]; /* R: driver-specific ID string */ 113 unsigned int num_dsps; /* R: number of DSP images to transfer */ 114 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 115 unsigned int chip_ready; /* R: 1 = initialization finished */ 116 unsigned char reserved[16]; /* reserved for future use */ 117 }; 118 119 struct sndrv_hwdep_dsp_image { 120 unsigned int index; /* W: DSP index */ 121 unsigned char name[64]; /* W: ID (e.g. file name) */ 122 unsigned char __user *image; /* W: binary image */ 123 size_t length; /* W: size of image in bytes */ 124 unsigned long driver_data; /* W: driver-specific data */ 125 }; 126 127 enum { 128 SNDRV_HWDEP_IOCTL_PVERSION = _IOR ('H', 0x00, int), 129 SNDRV_HWDEP_IOCTL_INFO = _IOR ('H', 0x01, struct sndrv_hwdep_info), 130 SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct sndrv_hwdep_dsp_status), 131 SNDRV_HWDEP_IOCTL_DSP_LOAD = _IOW('H', 0x03, struct sndrv_hwdep_dsp_image) 132 }; 133 134 /***************************************************************************** 135 * * 136 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 137 * * 138 *****************************************************************************/ 139 140 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 141 142 typedef unsigned long sndrv_pcm_uframes_t; 143 typedef long sndrv_pcm_sframes_t; 144 145 enum sndrv_pcm_class { 146 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 147 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 148 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 149 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 150 /* Don't forget to change the following: */ 151 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 152 }; 153 154 enum sndrv_pcm_subclass { 155 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 156 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 157 /* Don't forget to change the following: */ 158 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 159 }; 160 161 enum sndrv_pcm_stream { 162 SNDRV_PCM_STREAM_PLAYBACK = 0, 163 SNDRV_PCM_STREAM_CAPTURE, 164 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 165 }; 166 167 enum sndrv_pcm_access { 168 SNDRV_PCM_ACCESS_MMAP_INTERLEAVED = 0, /* interleaved mmap */ 169 SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED, /* noninterleaved mmap */ 170 SNDRV_PCM_ACCESS_MMAP_COMPLEX, /* complex mmap */ 171 SNDRV_PCM_ACCESS_RW_INTERLEAVED, /* readi/writei */ 172 SNDRV_PCM_ACCESS_RW_NONINTERLEAVED, /* readn/writen */ 173 SNDRV_PCM_ACCESS_LAST = SNDRV_PCM_ACCESS_RW_NONINTERLEAVED, 174 }; 175 176 enum sndrv_pcm_format { 177 SNDRV_PCM_FORMAT_S8 = 0, 178 SNDRV_PCM_FORMAT_U8, 179 SNDRV_PCM_FORMAT_S16_LE, 180 SNDRV_PCM_FORMAT_S16_BE, 181 SNDRV_PCM_FORMAT_U16_LE, 182 SNDRV_PCM_FORMAT_U16_BE, 183 SNDRV_PCM_FORMAT_S24_LE, /* low three bytes */ 184 SNDRV_PCM_FORMAT_S24_BE, /* low three bytes */ 185 SNDRV_PCM_FORMAT_U24_LE, /* low three bytes */ 186 SNDRV_PCM_FORMAT_U24_BE, /* low three bytes */ 187 SNDRV_PCM_FORMAT_S32_LE, 188 SNDRV_PCM_FORMAT_S32_BE, 189 SNDRV_PCM_FORMAT_U32_LE, 190 SNDRV_PCM_FORMAT_U32_BE, 191 SNDRV_PCM_FORMAT_FLOAT_LE, /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 192 SNDRV_PCM_FORMAT_FLOAT_BE, /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 193 SNDRV_PCM_FORMAT_FLOAT64_LE, /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 194 SNDRV_PCM_FORMAT_FLOAT64_BE, /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 195 SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE, /* IEC-958 subframe, Little Endian */ 196 SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE, /* IEC-958 subframe, Big Endian */ 197 SNDRV_PCM_FORMAT_MU_LAW, 198 SNDRV_PCM_FORMAT_A_LAW, 199 SNDRV_PCM_FORMAT_IMA_ADPCM, 200 SNDRV_PCM_FORMAT_MPEG, 201 SNDRV_PCM_FORMAT_GSM, 202 SNDRV_PCM_FORMAT_SPECIAL = 31, 203 SNDRV_PCM_FORMAT_S24_3LE = 32, /* in three bytes */ 204 SNDRV_PCM_FORMAT_S24_3BE, /* in three bytes */ 205 SNDRV_PCM_FORMAT_U24_3LE, /* in three bytes */ 206 SNDRV_PCM_FORMAT_U24_3BE, /* in three bytes */ 207 SNDRV_PCM_FORMAT_S20_3LE, /* in three bytes */ 208 SNDRV_PCM_FORMAT_S20_3BE, /* in three bytes */ 209 SNDRV_PCM_FORMAT_U20_3LE, /* in three bytes */ 210 SNDRV_PCM_FORMAT_U20_3BE, /* in three bytes */ 211 SNDRV_PCM_FORMAT_S18_3LE, /* in three bytes */ 212 SNDRV_PCM_FORMAT_S18_3BE, /* in three bytes */ 213 SNDRV_PCM_FORMAT_U18_3LE, /* in three bytes */ 214 SNDRV_PCM_FORMAT_U18_3BE, /* in three bytes */ 215 SNDRV_PCM_FORMAT_LAST = SNDRV_PCM_FORMAT_U18_3BE, 216 217 #ifdef SNDRV_LITTLE_ENDIAN 218 SNDRV_PCM_FORMAT_S16 = SNDRV_PCM_FORMAT_S16_LE, 219 SNDRV_PCM_FORMAT_U16 = SNDRV_PCM_FORMAT_U16_LE, 220 SNDRV_PCM_FORMAT_S24 = SNDRV_PCM_FORMAT_S24_LE, 221 SNDRV_PCM_FORMAT_U24 = SNDRV_PCM_FORMAT_U24_LE, 222 SNDRV_PCM_FORMAT_S32 = SNDRV_PCM_FORMAT_S32_LE, 223 SNDRV_PCM_FORMAT_U32 = SNDRV_PCM_FORMAT_U32_LE, 224 SNDRV_PCM_FORMAT_FLOAT = SNDRV_PCM_FORMAT_FLOAT_LE, 225 SNDRV_PCM_FORMAT_FLOAT64 = SNDRV_PCM_FORMAT_FLOAT64_LE, 226 SNDRV_PCM_FORMAT_IEC958_SUBFRAME = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE, 227 #endif 228 #ifdef SNDRV_BIG_ENDIAN 229 SNDRV_PCM_FORMAT_S16 = SNDRV_PCM_FORMAT_S16_BE, 230 SNDRV_PCM_FORMAT_U16 = SNDRV_PCM_FORMAT_U16_BE, 231 SNDRV_PCM_FORMAT_S24 = SNDRV_PCM_FORMAT_S24_BE, 232 SNDRV_PCM_FORMAT_U24 = SNDRV_PCM_FORMAT_U24_BE, 233 SNDRV_PCM_FORMAT_S32 = SNDRV_PCM_FORMAT_S32_BE, 234 SNDRV_PCM_FORMAT_U32 = SNDRV_PCM_FORMAT_U32_BE, 235 SNDRV_PCM_FORMAT_FLOAT = SNDRV_PCM_FORMAT_FLOAT_BE, 236 SNDRV_PCM_FORMAT_FLOAT64 = SNDRV_PCM_FORMAT_FLOAT64_BE, 237 SNDRV_PCM_FORMAT_IEC958_SUBFRAME = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE, 238 #endif 239 }; 240 241 enum sndrv_pcm_subformat { 242 SNDRV_PCM_SUBFORMAT_STD = 0, 243 SNDRV_PCM_SUBFORMAT_LAST = SNDRV_PCM_SUBFORMAT_STD, 244 }; 245 246 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 247 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 248 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 249 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 250 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 251 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 252 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 253 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 254 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 255 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 256 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 257 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 258 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 259 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 260 261 enum sndrv_pcm_state { 262 SNDRV_PCM_STATE_OPEN = 0, /* stream is open */ 263 SNDRV_PCM_STATE_SETUP, /* stream has a setup */ 264 SNDRV_PCM_STATE_PREPARED, /* stream is ready to start */ 265 SNDRV_PCM_STATE_RUNNING, /* stream is running */ 266 SNDRV_PCM_STATE_XRUN, /* stream reached an xrun */ 267 SNDRV_PCM_STATE_DRAINING, /* stream is draining */ 268 SNDRV_PCM_STATE_PAUSED, /* stream is paused */ 269 SNDRV_PCM_STATE_SUSPENDED, /* hardware is suspended */ 270 SNDRV_PCM_STATE_DISCONNECTED, /* hardware is disconnected */ 271 SNDRV_PCM_STATE_LAST = SNDRV_PCM_STATE_DISCONNECTED, 272 }; 273 274 enum { 275 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 276 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 277 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 278 }; 279 280 union sndrv_pcm_sync_id { 281 unsigned char id[16]; 282 unsigned short id16[8]; 283 unsigned int id32[4]; 284 }; 285 286 struct sndrv_pcm_info { 287 unsigned int device; /* RO/WR (control): device number */ 288 unsigned int subdevice; /* RO/WR (control): subdevice number */ 289 enum sndrv_pcm_stream stream; /* RO/WR (control): stream number */ 290 int card; /* R: card number */ 291 unsigned char id[64]; /* ID (user selectable) */ 292 unsigned char name[80]; /* name of this device */ 293 unsigned char subname[32]; /* subdevice name */ 294 enum sndrv_pcm_class dev_class; /* SNDRV_PCM_CLASS_* */ 295 enum sndrv_pcm_subclass dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 296 unsigned int subdevices_count; 297 unsigned int subdevices_avail; 298 union sndrv_pcm_sync_id sync; /* hardware synchronization ID */ 299 unsigned char reserved[64]; /* reserved for future... */ 300 }; 301 302 enum sndrv_pcm_hw_param { 303 SNDRV_PCM_HW_PARAM_ACCESS = 0, /* Access type */ 304 SNDRV_PCM_HW_PARAM_FIRST_MASK = SNDRV_PCM_HW_PARAM_ACCESS, 305 SNDRV_PCM_HW_PARAM_FORMAT, /* Format */ 306 SNDRV_PCM_HW_PARAM_SUBFORMAT, /* Subformat */ 307 SNDRV_PCM_HW_PARAM_LAST_MASK = SNDRV_PCM_HW_PARAM_SUBFORMAT, 308 309 SNDRV_PCM_HW_PARAM_SAMPLE_BITS = 8, /* Bits per sample */ 310 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL = SNDRV_PCM_HW_PARAM_SAMPLE_BITS, 311 SNDRV_PCM_HW_PARAM_FRAME_BITS, /* Bits per frame */ 312 SNDRV_PCM_HW_PARAM_CHANNELS, /* Channels */ 313 SNDRV_PCM_HW_PARAM_RATE, /* Approx rate */ 314 SNDRV_PCM_HW_PARAM_PERIOD_TIME, /* Approx distance between interrupts 315 in us */ 316 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, /* Approx frames between interrupts */ 317 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, /* Approx bytes between interrupts */ 318 SNDRV_PCM_HW_PARAM_PERIODS, /* Approx interrupts per buffer */ 319 SNDRV_PCM_HW_PARAM_BUFFER_TIME, /* Approx duration of buffer in us */ 320 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, /* Size of buffer in frames */ 321 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, /* Size of buffer in bytes */ 322 SNDRV_PCM_HW_PARAM_TICK_TIME, /* Approx tick duration in us */ 323 SNDRV_PCM_HW_PARAM_LAST_INTERVAL = SNDRV_PCM_HW_PARAM_TICK_TIME 324 }; 325 326 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 327 328 struct sndrv_interval { 329 unsigned int min, max; 330 unsigned int openmin:1, 331 openmax:1, 332 integer:1, 333 empty:1; 334 }; 335 336 #define SNDRV_MASK_MAX 256 337 338 struct sndrv_mask { 339 u_int32_t bits[(SNDRV_MASK_MAX+31)/32]; 340 }; 341 342 struct sndrv_pcm_hw_params { 343 unsigned int flags; 344 struct sndrv_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 345 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 346 struct sndrv_mask mres[5]; /* reserved masks */ 347 struct sndrv_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 348 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 349 struct sndrv_interval ires[9]; /* reserved intervals */ 350 unsigned int rmask; /* W: requested masks */ 351 unsigned int cmask; /* R: changed masks */ 352 unsigned int info; /* R: Info flags for returned setup */ 353 unsigned int msbits; /* R: used most significant bits */ 354 unsigned int rate_num; /* R: rate numerator */ 355 unsigned int rate_den; /* R: rate denominator */ 356 sndrv_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 357 unsigned char reserved[64]; /* reserved for future */ 358 }; 359 360 enum sndrv_pcm_tstamp { 361 SNDRV_PCM_TSTAMP_NONE = 0, 362 SNDRV_PCM_TSTAMP_MMAP, 363 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_MMAP, 364 }; 365 366 struct sndrv_pcm_sw_params { 367 enum sndrv_pcm_tstamp tstamp_mode; /* timestamp mode */ 368 unsigned int period_step; 369 unsigned int sleep_min; /* min ticks to sleep */ 370 sndrv_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 371 sndrv_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */ 372 sndrv_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 373 sndrv_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 374 sndrv_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 375 sndrv_pcm_uframes_t silence_size; /* silence block size */ 376 sndrv_pcm_uframes_t boundary; /* pointers wrap point */ 377 unsigned char reserved[64]; /* reserved for future */ 378 }; 379 380 struct sndrv_pcm_channel_info { 381 unsigned int channel; 382 off_t offset; /* mmap offset */ 383 unsigned int first; /* offset to first sample in bits */ 384 unsigned int step; /* samples distance in bits */ 385 }; 386 387 struct sndrv_pcm_status { 388 enum sndrv_pcm_state state; /* stream state */ 389 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 390 struct timespec tstamp; /* reference timestamp */ 391 sndrv_pcm_uframes_t appl_ptr; /* appl ptr */ 392 sndrv_pcm_uframes_t hw_ptr; /* hw ptr */ 393 sndrv_pcm_sframes_t delay; /* current delay in frames */ 394 sndrv_pcm_uframes_t avail; /* number of frames available */ 395 sndrv_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 396 sndrv_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 397 enum sndrv_pcm_state suspended_state; /* suspended stream state */ 398 unsigned char reserved[60]; /* must be filled with zero */ 399 }; 400 401 struct sndrv_pcm_mmap_status { 402 enum sndrv_pcm_state state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 403 int pad1; /* Needed for 64 bit alignment */ 404 sndrv_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 405 struct timespec tstamp; /* Timestamp */ 406 enum sndrv_pcm_state suspended_state; /* RO: suspended stream state */ 407 }; 408 409 struct sndrv_pcm_mmap_control { 410 sndrv_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 411 sndrv_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 412 }; 413 414 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 415 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 416 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 417 418 struct sndrv_pcm_sync_ptr { 419 unsigned int flags; 420 union { 421 struct sndrv_pcm_mmap_status status; 422 unsigned char reserved[64]; 423 } s; 424 union { 425 struct sndrv_pcm_mmap_control control; 426 unsigned char reserved[64]; 427 } c; 428 }; 429 430 struct sndrv_xferi { 431 sndrv_pcm_sframes_t result; 432 void __user *buf; 433 sndrv_pcm_uframes_t frames; 434 }; 435 436 struct sndrv_xfern { 437 sndrv_pcm_sframes_t result; 438 void __user * __user *bufs; 439 sndrv_pcm_uframes_t frames; 440 }; 441 442 enum { 443 SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int), 444 SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct sndrv_pcm_info), 445 SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int), 446 SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct sndrv_pcm_hw_params), 447 SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct sndrv_pcm_hw_params), 448 SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12), 449 SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct sndrv_pcm_sw_params), 450 SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct sndrv_pcm_status), 451 SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, sndrv_pcm_sframes_t), 452 SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22), 453 SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct sndrv_pcm_sync_ptr), 454 SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct sndrv_pcm_channel_info), 455 SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40), 456 SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41), 457 SNDRV_PCM_IOCTL_START = _IO('A', 0x42), 458 SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43), 459 SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44), 460 SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int), 461 SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, sndrv_pcm_uframes_t), 462 SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47), 463 SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48), 464 SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, sndrv_pcm_uframes_t), 465 SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct sndrv_xferi), 466 SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct sndrv_xferi), 467 SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct sndrv_xfern), 468 SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct sndrv_xfern), 469 SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int), 470 SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61), 471 }; 472 473 /* Trick to make alsa-lib/acinclude.m4 happy */ 474 #define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND 475 476 /***************************************************************************** 477 * * 478 * MIDI v1.0 interface * 479 * * 480 *****************************************************************************/ 481 482 /* 483 * Raw MIDI section - /dev/snd/midi?? 484 */ 485 486 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 487 488 enum sndrv_rawmidi_stream { 489 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 490 SNDRV_RAWMIDI_STREAM_INPUT, 491 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 492 }; 493 494 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 495 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 496 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 497 498 struct sndrv_rawmidi_info { 499 unsigned int device; /* RO/WR (control): device number */ 500 unsigned int subdevice; /* RO/WR (control): subdevice number */ 501 enum sndrv_rawmidi_stream stream; /* WR: stream */ 502 int card; /* R: card number */ 503 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 504 unsigned char id[64]; /* ID (user selectable) */ 505 unsigned char name[80]; /* name of device */ 506 unsigned char subname[32]; /* name of active or selected subdevice */ 507 unsigned int subdevices_count; 508 unsigned int subdevices_avail; 509 unsigned char reserved[64]; /* reserved for future use */ 510 }; 511 512 struct sndrv_rawmidi_params { 513 enum sndrv_rawmidi_stream stream; 514 size_t buffer_size; /* queue size in bytes */ 515 size_t avail_min; /* minimum avail bytes for wakeup */ 516 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 517 unsigned char reserved[16]; /* reserved for future use */ 518 }; 519 520 struct sndrv_rawmidi_status { 521 enum sndrv_rawmidi_stream stream; 522 struct timespec tstamp; /* Timestamp */ 523 size_t avail; /* available bytes */ 524 size_t xruns; /* count of overruns since last status (in bytes) */ 525 unsigned char reserved[16]; /* reserved for future use */ 526 }; 527 528 enum { 529 SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int), 530 SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct sndrv_rawmidi_info), 531 SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct sndrv_rawmidi_params), 532 SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct sndrv_rawmidi_status), 533 SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int), 534 SNDRV_RAWMIDI_IOCTL_DRAIN = _IOW('W', 0x31, int), 535 }; 536 537 /* 538 * Timer section - /dev/snd/timer 539 */ 540 541 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 542 543 enum sndrv_timer_class { 544 SNDRV_TIMER_CLASS_NONE = -1, 545 SNDRV_TIMER_CLASS_SLAVE = 0, 546 SNDRV_TIMER_CLASS_GLOBAL, 547 SNDRV_TIMER_CLASS_CARD, 548 SNDRV_TIMER_CLASS_PCM, 549 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 550 }; 551 552 /* slave timer classes */ 553 enum sndrv_timer_slave_class { 554 SNDRV_TIMER_SCLASS_NONE = 0, 555 SNDRV_TIMER_SCLASS_APPLICATION, 556 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 557 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 558 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 559 }; 560 561 /* global timers (device member) */ 562 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 563 #define SNDRV_TIMER_GLOBAL_RTC 1 564 #define SNDRV_TIMER_GLOBAL_HPET 2 565 566 /* info flags */ 567 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 568 569 struct sndrv_timer_id { 570 enum sndrv_timer_class dev_class; 571 enum sndrv_timer_slave_class dev_sclass; 572 int card; 573 int device; 574 int subdevice; 575 }; 576 577 struct sndrv_timer_ginfo { 578 struct sndrv_timer_id tid; /* requested timer ID */ 579 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 580 int card; /* card number */ 581 unsigned char id[64]; /* timer identification */ 582 unsigned char name[80]; /* timer name */ 583 unsigned long reserved0; /* reserved for future use */ 584 unsigned long resolution; /* average period resolution in ns */ 585 unsigned long resolution_min; /* minimal period resolution in ns */ 586 unsigned long resolution_max; /* maximal period resolution in ns */ 587 unsigned int clients; /* active timer clients */ 588 unsigned char reserved[32]; 589 }; 590 591 struct sndrv_timer_gparams { 592 struct sndrv_timer_id tid; /* requested timer ID */ 593 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 594 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 595 unsigned char reserved[32]; 596 }; 597 598 struct sndrv_timer_gstatus { 599 struct sndrv_timer_id tid; /* requested timer ID */ 600 unsigned long resolution; /* current period resolution in ns */ 601 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 602 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 603 unsigned char reserved[32]; 604 }; 605 606 struct sndrv_timer_select { 607 struct sndrv_timer_id id; /* bind to timer ID */ 608 unsigned char reserved[32]; /* reserved */ 609 }; 610 611 struct sndrv_timer_info { 612 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 613 int card; /* card number */ 614 unsigned char id[64]; /* timer identificator */ 615 unsigned char name[80]; /* timer name */ 616 unsigned long reserved0; /* reserved for future use */ 617 unsigned long resolution; /* average period resolution in ns */ 618 unsigned char reserved[64]; /* reserved */ 619 }; 620 621 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 622 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 623 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 624 625 struct sndrv_timer_params { 626 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 627 unsigned int ticks; /* requested resolution in ticks */ 628 unsigned int queue_size; /* total size of queue (32-1024) */ 629 unsigned int reserved0; /* reserved, was: failure locations */ 630 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 631 unsigned char reserved[60]; /* reserved */ 632 }; 633 634 struct sndrv_timer_status { 635 struct timespec tstamp; /* Timestamp - last update */ 636 unsigned int resolution; /* current period resolution in ns */ 637 unsigned int lost; /* counter of master tick lost */ 638 unsigned int overrun; /* count of read queue overruns */ 639 unsigned int queue; /* used queue size */ 640 unsigned char reserved[64]; /* reserved */ 641 }; 642 643 enum { 644 SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int), 645 SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct sndrv_timer_id), 646 SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int), 647 SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct sndrv_timer_ginfo), 648 SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct sndrv_timer_gparams), 649 SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct sndrv_timer_gstatus), 650 SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct sndrv_timer_select), 651 SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct sndrv_timer_info), 652 SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct sndrv_timer_params), 653 SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct sndrv_timer_status), 654 /* The following four ioctls are changed since 1.0.9 due to confliction */ 655 SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0), 656 SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1), 657 SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2), 658 SNDRV_TIMER_IOCTL_PAUSE = _IO('T', 0xa3), 659 }; 660 661 struct sndrv_timer_read { 662 unsigned int resolution; 663 unsigned int ticks; 664 }; 665 666 enum sndrv_timer_event { 667 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 668 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 669 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 670 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 671 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 672 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 673 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 674 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 675 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 676 /* master timer events for slave timer instances */ 677 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 678 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 679 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 680 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 681 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 682 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 683 }; 684 685 struct sndrv_timer_tread { 686 enum sndrv_timer_event event; 687 struct timespec tstamp; 688 unsigned int val; 689 }; 690 691 /**************************************************************************** 692 * * 693 * Section for driver control interface - /dev/snd/control? * 694 * * 695 ****************************************************************************/ 696 697 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 3) 698 699 struct sndrv_ctl_card_info { 700 int card; /* card number */ 701 int pad; /* reserved for future (was type) */ 702 unsigned char id[16]; /* ID of card (user selectable) */ 703 unsigned char driver[16]; /* Driver name */ 704 unsigned char name[32]; /* Short name of soundcard */ 705 unsigned char longname[80]; /* name + info text about soundcard */ 706 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 707 unsigned char mixername[80]; /* visual mixer identification */ 708 unsigned char components[80]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 709 unsigned char reserved[48]; /* reserved for future */ 710 }; 711 712 enum sndrv_ctl_elem_type { 713 SNDRV_CTL_ELEM_TYPE_NONE = 0, /* invalid */ 714 SNDRV_CTL_ELEM_TYPE_BOOLEAN, /* boolean type */ 715 SNDRV_CTL_ELEM_TYPE_INTEGER, /* integer type */ 716 SNDRV_CTL_ELEM_TYPE_ENUMERATED, /* enumerated type */ 717 SNDRV_CTL_ELEM_TYPE_BYTES, /* byte array */ 718 SNDRV_CTL_ELEM_TYPE_IEC958, /* IEC958 (S/PDIF) setup */ 719 SNDRV_CTL_ELEM_TYPE_INTEGER64, /* 64-bit integer type */ 720 SNDRV_CTL_ELEM_TYPE_LAST = SNDRV_CTL_ELEM_TYPE_INTEGER64, 721 }; 722 723 enum sndrv_ctl_elem_iface { 724 SNDRV_CTL_ELEM_IFACE_CARD = 0, /* global control */ 725 SNDRV_CTL_ELEM_IFACE_HWDEP, /* hardware dependent device */ 726 SNDRV_CTL_ELEM_IFACE_MIXER, /* virtual mixer device */ 727 SNDRV_CTL_ELEM_IFACE_PCM, /* PCM device */ 728 SNDRV_CTL_ELEM_IFACE_RAWMIDI, /* RawMidi device */ 729 SNDRV_CTL_ELEM_IFACE_TIMER, /* timer device */ 730 SNDRV_CTL_ELEM_IFACE_SEQUENCER, /* sequencer client */ 731 SNDRV_CTL_ELEM_IFACE_LAST = SNDRV_CTL_ELEM_IFACE_SEQUENCER, 732 }; 733 734 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 735 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 736 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 737 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 738 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<2) /* when was control changed */ 739 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 740 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 741 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 742 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 743 #define SNDRV_CTL_ELEM_ACCESS_DINDIRECT (1<<30) /* indirect access for matrix dimensions in the info structure */ 744 #define SNDRV_CTL_ELEM_ACCESS_INDIRECT (1<<31) /* indirect access for element value in the value structure */ 745 746 /* for further details see the ACPI and PCI power management specification */ 747 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 748 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 749 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 750 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 751 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 752 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 753 754 struct sndrv_ctl_elem_id { 755 unsigned int numid; /* numeric identifier, zero = invalid */ 756 enum sndrv_ctl_elem_iface iface; /* interface identifier */ 757 unsigned int device; /* device/client number */ 758 unsigned int subdevice; /* subdevice (substream) number */ 759 unsigned char name[44]; /* ASCII name of item */ 760 unsigned int index; /* index of item */ 761 }; 762 763 struct sndrv_ctl_elem_list { 764 unsigned int offset; /* W: first element ID to get */ 765 unsigned int space; /* W: count of element IDs to get */ 766 unsigned int used; /* R: count of element IDs set */ 767 unsigned int count; /* R: count of all elements */ 768 struct sndrv_ctl_elem_id __user *pids; /* R: IDs */ 769 unsigned char reserved[50]; 770 }; 771 772 struct sndrv_ctl_elem_info { 773 struct sndrv_ctl_elem_id id; /* W: element ID */ 774 enum sndrv_ctl_elem_type type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 775 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 776 unsigned int count; /* count of values */ 777 pid_t owner; /* owner's PID of this control */ 778 union { 779 struct { 780 long min; /* R: minimum value */ 781 long max; /* R: maximum value */ 782 long step; /* R: step (0 variable) */ 783 } integer; 784 struct { 785 long long min; /* R: minimum value */ 786 long long max; /* R: maximum value */ 787 long long step; /* R: step (0 variable) */ 788 } integer64; 789 struct { 790 unsigned int items; /* R: number of items */ 791 unsigned int item; /* W: item number */ 792 char name[64]; /* R: value name */ 793 } enumerated; 794 unsigned char reserved[128]; 795 } value; 796 union { 797 unsigned short d[4]; /* dimensions */ 798 unsigned short *d_ptr; /* indirect */ 799 } dimen; 800 unsigned char reserved[64-4*sizeof(unsigned short)]; 801 }; 802 803 struct sndrv_ctl_elem_value { 804 struct sndrv_ctl_elem_id id; /* W: element ID */ 805 unsigned int indirect: 1; /* W: use indirect pointer (xxx_ptr member) */ 806 union { 807 union { 808 long value[128]; 809 long *value_ptr; 810 } integer; 811 union { 812 long long value[64]; 813 long long *value_ptr; 814 } integer64; 815 union { 816 unsigned int item[128]; 817 unsigned int *item_ptr; 818 } enumerated; 819 union { 820 unsigned char data[512]; 821 unsigned char *data_ptr; 822 } bytes; 823 struct sndrv_aes_iec958 iec958; 824 } value; /* RO */ 825 struct timespec tstamp; 826 unsigned char reserved[128-sizeof(struct timespec)]; 827 }; 828 829 enum { 830 SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int), 831 SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct sndrv_ctl_card_info), 832 SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct sndrv_ctl_elem_list), 833 SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct sndrv_ctl_elem_info), 834 SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct sndrv_ctl_elem_value), 835 SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct sndrv_ctl_elem_value), 836 SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct sndrv_ctl_elem_id), 837 SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct sndrv_ctl_elem_id), 838 SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int), 839 SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct sndrv_ctl_elem_info), 840 SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct sndrv_ctl_elem_info), 841 SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct sndrv_ctl_elem_id), 842 SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int), 843 SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct sndrv_hwdep_info), 844 SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int), 845 SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct sndrv_pcm_info), 846 SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int), 847 SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int), 848 SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct sndrv_rawmidi_info), 849 SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int), 850 SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int), 851 SNDRV_CTL_IOCTL_POWER_STATE = _IOR('U', 0xd1, int), 852 }; 853 854 /* 855 * Read interface. 856 */ 857 858 enum sndrv_ctl_event_type { 859 SNDRV_CTL_EVENT_ELEM = 0, 860 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 861 }; 862 863 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 864 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 865 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 866 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 867 868 struct sndrv_ctl_event { 869 enum sndrv_ctl_event_type type; /* event type - SNDRV_CTL_EVENT_* */ 870 union { 871 struct { 872 unsigned int mask; 873 struct sndrv_ctl_elem_id id; 874 } elem; 875 unsigned char data8[60]; 876 } data; 877 }; 878 879 /* 880 * Control names 881 */ 882 883 #define SNDRV_CTL_NAME_NONE "" 884 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 885 #define SNDRV_CTL_NAME_CAPTURE "Capture " 886 887 #define SNDRV_CTL_NAME_IEC958_NONE "" 888 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 889 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 890 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 891 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 892 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 893 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 894 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 895 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 896 897 /* 898 * 899 */ 900 901 struct sndrv_xferv { 902 const struct iovec *vector; 903 unsigned long count; 904 }; 905 906 enum { 907 SNDRV_IOCTL_READV = _IOW('K', 0x00, struct sndrv_xferv), 908 SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct sndrv_xferv), 909 }; 910 911 #endif /* __SOUND_ASOUND_H */ 912