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 __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 snd_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 { 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 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 96 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 97 98 /* Don't forget to change the following: */ 99 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM 100 }; 101 102 struct snd_hwdep_info { 103 unsigned int device; /* WR: device number */ 104 int card; /* R: card number */ 105 unsigned char id[64]; /* ID (user selectable) */ 106 unsigned char name[80]; /* hwdep name */ 107 int iface; /* hwdep interface */ 108 unsigned char reserved[64]; /* reserved for future */ 109 }; 110 111 /* generic DSP loader */ 112 struct snd_hwdep_dsp_status { 113 unsigned int version; /* R: driver-specific version */ 114 unsigned char id[32]; /* R: driver-specific ID string */ 115 unsigned int num_dsps; /* R: number of DSP images to transfer */ 116 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 117 unsigned int chip_ready; /* R: 1 = initialization finished */ 118 unsigned char reserved[16]; /* reserved for future use */ 119 }; 120 121 struct snd_hwdep_dsp_image { 122 unsigned int index; /* W: DSP index */ 123 unsigned char name[64]; /* W: ID (e.g. file name) */ 124 unsigned char __user *image; /* W: binary image */ 125 size_t length; /* W: size of image in bytes */ 126 unsigned long driver_data; /* W: driver-specific data */ 127 }; 128 129 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 130 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 131 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 132 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 133 134 /***************************************************************************** 135 * * 136 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 137 * * 138 *****************************************************************************/ 139 140 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) 141 142 typedef unsigned long snd_pcm_uframes_t; 143 typedef signed long snd_pcm_sframes_t; 144 145 enum { 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 { 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 { 162 SNDRV_PCM_STREAM_PLAYBACK = 0, 163 SNDRV_PCM_STREAM_CAPTURE, 164 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 165 }; 166 167 typedef int __bitwise snd_pcm_access_t; 168 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 169 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 170 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 171 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 172 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 173 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 174 175 typedef int __bitwise snd_pcm_format_t; 176 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 177 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 178 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 179 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 180 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 181 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 182 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 183 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 184 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 185 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 186 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 187 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 188 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 189 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 190 #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 */ 191 #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 */ 192 #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 */ 193 #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 */ 194 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 195 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 196 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 197 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 198 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 199 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 200 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 201 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 202 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 203 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 204 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 205 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 206 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 207 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 208 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 209 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 210 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 211 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 212 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 213 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 214 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_U18_3BE 215 216 #ifdef SNDRV_LITTLE_ENDIAN 217 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 218 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 219 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 220 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 221 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 222 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 223 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 224 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 225 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 226 #endif 227 #ifdef SNDRV_BIG_ENDIAN 228 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 229 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 230 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 231 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 232 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 233 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 234 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 235 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 236 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 237 #endif 238 239 typedef int __bitwise snd_pcm_subformat_t; 240 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 241 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 242 243 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 244 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 245 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 246 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 247 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 248 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 249 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 250 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 251 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 252 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 253 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 254 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 255 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 256 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 257 258 typedef int __bitwise snd_pcm_state_t; 259 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 260 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 261 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 262 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 263 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 264 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 265 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 266 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 267 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 268 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 269 270 enum { 271 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 272 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 273 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 274 }; 275 276 union snd_pcm_sync_id { 277 unsigned char id[16]; 278 unsigned short id16[8]; 279 unsigned int id32[4]; 280 }; 281 282 struct snd_pcm_info { 283 unsigned int device; /* RO/WR (control): device number */ 284 unsigned int subdevice; /* RO/WR (control): subdevice number */ 285 int stream; /* RO/WR (control): stream direction */ 286 int card; /* R: card number */ 287 unsigned char id[64]; /* ID (user selectable) */ 288 unsigned char name[80]; /* name of this device */ 289 unsigned char subname[32]; /* subdevice name */ 290 int dev_class; /* SNDRV_PCM_CLASS_* */ 291 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 292 unsigned int subdevices_count; 293 unsigned int subdevices_avail; 294 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 295 unsigned char reserved[64]; /* reserved for future... */ 296 }; 297 298 typedef int snd_pcm_hw_param_t; 299 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 300 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 301 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 302 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 303 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 304 305 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 306 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 307 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 308 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 309 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 310 * interrupts in us 311 */ 312 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 313 * interrupts 314 */ 315 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 316 * interrupts 317 */ 318 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 319 * buffer 320 */ 321 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 322 * in us 323 */ 324 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 325 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 326 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 327 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 328 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 329 330 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 331 332 struct snd_interval { 333 unsigned int min, max; 334 unsigned int openmin:1, 335 openmax:1, 336 integer:1, 337 empty:1; 338 }; 339 340 #define SNDRV_MASK_MAX 256 341 342 struct snd_mask { 343 u_int32_t bits[(SNDRV_MASK_MAX+31)/32]; 344 }; 345 346 struct snd_pcm_hw_params { 347 unsigned int flags; 348 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 349 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 350 struct snd_mask mres[5]; /* reserved masks */ 351 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 352 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 353 struct snd_interval ires[9]; /* reserved intervals */ 354 unsigned int rmask; /* W: requested masks */ 355 unsigned int cmask; /* R: changed masks */ 356 unsigned int info; /* R: Info flags for returned setup */ 357 unsigned int msbits; /* R: used most significant bits */ 358 unsigned int rate_num; /* R: rate numerator */ 359 unsigned int rate_den; /* R: rate denominator */ 360 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 361 unsigned char reserved[64]; /* reserved for future */ 362 }; 363 364 enum { 365 SNDRV_PCM_TSTAMP_NONE = 0, 366 SNDRV_PCM_TSTAMP_ENABLE, 367 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 368 }; 369 370 struct snd_pcm_sw_params { 371 int tstamp_mode; /* timestamp mode */ 372 unsigned int period_step; 373 unsigned int sleep_min; /* min ticks to sleep */ 374 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 375 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 376 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 377 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 378 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 379 snd_pcm_uframes_t silence_size; /* silence block size */ 380 snd_pcm_uframes_t boundary; /* pointers wrap point */ 381 unsigned char reserved[64]; /* reserved for future */ 382 }; 383 384 struct snd_pcm_channel_info { 385 unsigned int channel; 386 off_t offset; /* mmap offset */ 387 unsigned int first; /* offset to first sample in bits */ 388 unsigned int step; /* samples distance in bits */ 389 }; 390 391 struct snd_pcm_status { 392 snd_pcm_state_t state; /* stream state */ 393 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 394 struct timespec tstamp; /* reference timestamp */ 395 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 396 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 397 snd_pcm_sframes_t delay; /* current delay in frames */ 398 snd_pcm_uframes_t avail; /* number of frames available */ 399 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 400 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 401 snd_pcm_state_t suspended_state; /* suspended stream state */ 402 unsigned char reserved[60]; /* must be filled with zero */ 403 }; 404 405 struct snd_pcm_mmap_status { 406 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 407 int pad1; /* Needed for 64 bit alignment */ 408 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 409 struct timespec tstamp; /* Timestamp */ 410 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 411 }; 412 413 struct snd_pcm_mmap_control { 414 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 415 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 416 }; 417 418 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 419 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 420 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 421 422 struct snd_pcm_sync_ptr { 423 unsigned int flags; 424 union { 425 struct snd_pcm_mmap_status status; 426 unsigned char reserved[64]; 427 } s; 428 union { 429 struct snd_pcm_mmap_control control; 430 unsigned char reserved[64]; 431 } c; 432 }; 433 434 struct snd_xferi { 435 snd_pcm_sframes_t result; 436 void __user *buf; 437 snd_pcm_uframes_t frames; 438 }; 439 440 struct snd_xfern { 441 snd_pcm_sframes_t result; 442 void __user * __user *bufs; 443 snd_pcm_uframes_t frames; 444 }; 445 446 enum { 447 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 448 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 449 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, 450 }; 451 452 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 453 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 454 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 455 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 456 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 457 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 458 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 459 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 460 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 461 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 462 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 463 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 464 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 465 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 466 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 467 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 468 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 469 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 470 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 471 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 472 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 473 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 474 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 475 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 476 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 477 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 478 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 479 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 480 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 481 482 /***************************************************************************** 483 * * 484 * MIDI v1.0 interface * 485 * * 486 *****************************************************************************/ 487 488 /* 489 * Raw MIDI section - /dev/snd/midi?? 490 */ 491 492 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 493 494 enum { 495 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 496 SNDRV_RAWMIDI_STREAM_INPUT, 497 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 498 }; 499 500 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 501 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 502 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 503 504 struct snd_rawmidi_info { 505 unsigned int device; /* RO/WR (control): device number */ 506 unsigned int subdevice; /* RO/WR (control): subdevice number */ 507 int stream; /* WR: stream */ 508 int card; /* R: card number */ 509 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 510 unsigned char id[64]; /* ID (user selectable) */ 511 unsigned char name[80]; /* name of device */ 512 unsigned char subname[32]; /* name of active or selected subdevice */ 513 unsigned int subdevices_count; 514 unsigned int subdevices_avail; 515 unsigned char reserved[64]; /* reserved for future use */ 516 }; 517 518 struct snd_rawmidi_params { 519 int stream; 520 size_t buffer_size; /* queue size in bytes */ 521 size_t avail_min; /* minimum avail bytes for wakeup */ 522 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 523 unsigned char reserved[16]; /* reserved for future use */ 524 }; 525 526 struct snd_rawmidi_status { 527 int stream; 528 struct timespec tstamp; /* Timestamp */ 529 size_t avail; /* available bytes */ 530 size_t xruns; /* count of overruns since last status (in bytes) */ 531 unsigned char reserved[16]; /* reserved for future use */ 532 }; 533 534 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 535 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 536 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 537 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 538 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 539 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 540 541 /* 542 * Timer section - /dev/snd/timer 543 */ 544 545 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 546 547 enum { 548 SNDRV_TIMER_CLASS_NONE = -1, 549 SNDRV_TIMER_CLASS_SLAVE = 0, 550 SNDRV_TIMER_CLASS_GLOBAL, 551 SNDRV_TIMER_CLASS_CARD, 552 SNDRV_TIMER_CLASS_PCM, 553 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 554 }; 555 556 /* slave timer classes */ 557 enum { 558 SNDRV_TIMER_SCLASS_NONE = 0, 559 SNDRV_TIMER_SCLASS_APPLICATION, 560 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 561 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 562 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 563 }; 564 565 /* global timers (device member) */ 566 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 567 #define SNDRV_TIMER_GLOBAL_RTC 1 568 #define SNDRV_TIMER_GLOBAL_HPET 2 569 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 570 571 /* info flags */ 572 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 573 574 struct snd_timer_id { 575 int dev_class; 576 int dev_sclass; 577 int card; 578 int device; 579 int subdevice; 580 }; 581 582 struct snd_timer_ginfo { 583 struct snd_timer_id tid; /* requested timer ID */ 584 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 585 int card; /* card number */ 586 unsigned char id[64]; /* timer identification */ 587 unsigned char name[80]; /* timer name */ 588 unsigned long reserved0; /* reserved for future use */ 589 unsigned long resolution; /* average period resolution in ns */ 590 unsigned long resolution_min; /* minimal period resolution in ns */ 591 unsigned long resolution_max; /* maximal period resolution in ns */ 592 unsigned int clients; /* active timer clients */ 593 unsigned char reserved[32]; 594 }; 595 596 struct snd_timer_gparams { 597 struct snd_timer_id tid; /* requested timer ID */ 598 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 599 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 600 unsigned char reserved[32]; 601 }; 602 603 struct snd_timer_gstatus { 604 struct snd_timer_id tid; /* requested timer ID */ 605 unsigned long resolution; /* current period resolution in ns */ 606 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 607 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 608 unsigned char reserved[32]; 609 }; 610 611 struct snd_timer_select { 612 struct snd_timer_id id; /* bind to timer ID */ 613 unsigned char reserved[32]; /* reserved */ 614 }; 615 616 struct snd_timer_info { 617 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 618 int card; /* card number */ 619 unsigned char id[64]; /* timer identificator */ 620 unsigned char name[80]; /* timer name */ 621 unsigned long reserved0; /* reserved for future use */ 622 unsigned long resolution; /* average period resolution in ns */ 623 unsigned char reserved[64]; /* reserved */ 624 }; 625 626 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 627 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 628 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 629 630 struct snd_timer_params { 631 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 632 unsigned int ticks; /* requested resolution in ticks */ 633 unsigned int queue_size; /* total size of queue (32-1024) */ 634 unsigned int reserved0; /* reserved, was: failure locations */ 635 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 636 unsigned char reserved[60]; /* reserved */ 637 }; 638 639 struct snd_timer_status { 640 struct timespec tstamp; /* Timestamp - last update */ 641 unsigned int resolution; /* current period resolution in ns */ 642 unsigned int lost; /* counter of master tick lost */ 643 unsigned int overrun; /* count of read queue overruns */ 644 unsigned int queue; /* used queue size */ 645 unsigned char reserved[64]; /* reserved */ 646 }; 647 648 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 649 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 650 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) 651 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 652 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 653 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 654 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 655 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 656 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 657 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 658 /* The following four ioctls are changed since 1.0.9 due to confliction */ 659 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 660 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 661 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 662 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 663 664 struct snd_timer_read { 665 unsigned int resolution; 666 unsigned int ticks; 667 }; 668 669 enum { 670 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 671 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 672 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 673 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 674 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 675 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 676 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 677 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 678 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 679 /* master timer events for slave timer instances */ 680 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 681 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 682 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 683 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 684 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 685 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 686 }; 687 688 struct snd_timer_tread { 689 int event; 690 struct timespec tstamp; 691 unsigned int val; 692 }; 693 694 /**************************************************************************** 695 * * 696 * Section for driver control interface - /dev/snd/control? * 697 * * 698 ****************************************************************************/ 699 700 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 701 702 struct snd_ctl_card_info { 703 int card; /* card number */ 704 int pad; /* reserved for future (was type) */ 705 unsigned char id[16]; /* ID of card (user selectable) */ 706 unsigned char driver[16]; /* Driver name */ 707 unsigned char name[32]; /* Short name of soundcard */ 708 unsigned char longname[80]; /* name + info text about soundcard */ 709 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 710 unsigned char mixername[80]; /* visual mixer identification */ 711 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 712 }; 713 714 typedef int __bitwise snd_ctl_elem_type_t; 715 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 716 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 717 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 718 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 719 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 720 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 721 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 722 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 723 724 typedef int __bitwise snd_ctl_elem_iface_t; 725 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 726 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 727 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 728 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 729 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 730 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 731 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 732 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 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<<3) /* when was control changed */ 739 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 740 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 741 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 742 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 743 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 744 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 745 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 746 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 747 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 748 /* bits 30 and 31 are obsoleted (for indirect access) */ 749 750 /* for further details see the ACPI and PCI power management specification */ 751 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 752 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 753 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 754 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 755 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 756 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 757 758 struct snd_ctl_elem_id { 759 unsigned int numid; /* numeric identifier, zero = invalid */ 760 snd_ctl_elem_iface_t iface; /* interface identifier */ 761 unsigned int device; /* device/client number */ 762 unsigned int subdevice; /* subdevice (substream) number */ 763 unsigned char name[44]; /* ASCII name of item */ 764 unsigned int index; /* index of item */ 765 }; 766 767 struct snd_ctl_elem_list { 768 unsigned int offset; /* W: first element ID to get */ 769 unsigned int space; /* W: count of element IDs to get */ 770 unsigned int used; /* R: count of element IDs set */ 771 unsigned int count; /* R: count of all elements */ 772 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 773 unsigned char reserved[50]; 774 }; 775 776 struct snd_ctl_elem_info { 777 struct snd_ctl_elem_id id; /* W: element ID */ 778 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 779 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 780 unsigned int count; /* count of values */ 781 pid_t owner; /* owner's PID of this control */ 782 union { 783 struct { 784 long min; /* R: minimum value */ 785 long max; /* R: maximum value */ 786 long step; /* R: step (0 variable) */ 787 } integer; 788 struct { 789 long long min; /* R: minimum value */ 790 long long max; /* R: maximum value */ 791 long long step; /* R: step (0 variable) */ 792 } integer64; 793 struct { 794 unsigned int items; /* R: number of items */ 795 unsigned int item; /* W: item number */ 796 char name[64]; /* R: value name */ 797 } enumerated; 798 unsigned char reserved[128]; 799 } value; 800 union { 801 unsigned short d[4]; /* dimensions */ 802 unsigned short *d_ptr; /* indirect - obsoleted */ 803 } dimen; 804 unsigned char reserved[64-4*sizeof(unsigned short)]; 805 }; 806 807 struct snd_ctl_elem_value { 808 struct snd_ctl_elem_id id; /* W: element ID */ 809 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 810 union { 811 union { 812 long value[128]; 813 long *value_ptr; /* obsoleted */ 814 } integer; 815 union { 816 long long value[64]; 817 long long *value_ptr; /* obsoleted */ 818 } integer64; 819 union { 820 unsigned int item[128]; 821 unsigned int *item_ptr; /* obsoleted */ 822 } enumerated; 823 union { 824 unsigned char data[512]; 825 unsigned char *data_ptr; /* obsoleted */ 826 } bytes; 827 struct snd_aes_iec958 iec958; 828 } value; /* RO */ 829 struct timespec tstamp; 830 unsigned char reserved[128-sizeof(struct timespec)]; 831 }; 832 833 struct snd_ctl_tlv { 834 unsigned int numid; /* control element numeric identification */ 835 unsigned int length; /* in bytes aligned to 4 */ 836 unsigned int tlv[0]; /* first TLV */ 837 }; 838 839 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 840 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 841 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 842 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 843 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 844 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 845 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 846 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 847 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 848 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 849 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 850 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 851 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 852 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 853 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 854 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 855 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 856 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 857 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 858 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 859 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 860 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 861 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 862 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 863 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 864 865 /* 866 * Read interface. 867 */ 868 869 enum sndrv_ctl_event_type { 870 SNDRV_CTL_EVENT_ELEM = 0, 871 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 872 }; 873 874 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 875 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 876 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 877 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 878 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 879 880 struct snd_ctl_event { 881 int type; /* event type - SNDRV_CTL_EVENT_* */ 882 union { 883 struct { 884 unsigned int mask; 885 struct snd_ctl_elem_id id; 886 } elem; 887 unsigned char data8[60]; 888 } data; 889 }; 890 891 /* 892 * Control names 893 */ 894 895 #define SNDRV_CTL_NAME_NONE "" 896 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 897 #define SNDRV_CTL_NAME_CAPTURE "Capture " 898 899 #define SNDRV_CTL_NAME_IEC958_NONE "" 900 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 901 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 902 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 903 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 904 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 905 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 906 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 907 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 908 909 #endif /* __SOUND_ASOUND_H */ 910