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