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