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 97 /* Don't forget to change the following: */ 98 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_HDA 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 enum { 129 SNDRV_HWDEP_IOCTL_PVERSION = _IOR ('H', 0x00, int), 130 SNDRV_HWDEP_IOCTL_INFO = _IOR ('H', 0x01, struct snd_hwdep_info), 131 SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct snd_hwdep_dsp_status), 132 SNDRV_HWDEP_IOCTL_DSP_LOAD = _IOW('H', 0x03, struct snd_hwdep_dsp_image) 133 }; 134 135 /***************************************************************************** 136 * * 137 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 138 * * 139 *****************************************************************************/ 140 141 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) 142 143 typedef unsigned long snd_pcm_uframes_t; 144 typedef signed long snd_pcm_sframes_t; 145 146 enum { 147 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 148 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 149 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 150 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 151 /* Don't forget to change the following: */ 152 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 153 }; 154 155 enum { 156 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 157 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 158 /* Don't forget to change the following: */ 159 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 160 }; 161 162 enum { 163 SNDRV_PCM_STREAM_PLAYBACK = 0, 164 SNDRV_PCM_STREAM_CAPTURE, 165 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 166 }; 167 168 typedef int __bitwise snd_pcm_access_t; 169 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 170 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 171 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 172 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 173 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 174 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 175 176 typedef int __bitwise snd_pcm_format_t; 177 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 178 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 179 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 180 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 181 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 182 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 183 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 184 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 185 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 186 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 187 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 188 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 189 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 190 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 191 #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 */ 192 #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 */ 193 #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 */ 194 #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 */ 195 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 196 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 197 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 198 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 199 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 200 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 201 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 202 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 203 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 204 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 205 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 206 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 207 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 208 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 209 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 210 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 211 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 212 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 213 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 214 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 215 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_U18_3BE 216 217 #ifdef SNDRV_LITTLE_ENDIAN 218 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 219 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 220 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 221 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 222 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 223 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 224 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 225 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 226 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 227 #endif 228 #ifdef SNDRV_BIG_ENDIAN 229 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 230 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 231 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 232 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 233 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 234 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 235 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 236 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 237 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 238 #endif 239 240 typedef int __bitwise snd_pcm_subformat_t; 241 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 242 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 243 244 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 245 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 246 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 247 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 248 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 249 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 250 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 251 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 252 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 253 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 254 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 255 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 256 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 257 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 258 259 typedef int __bitwise snd_pcm_state_t; 260 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 261 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 262 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 263 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 264 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 265 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 266 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 267 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 268 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 269 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 270 271 enum { 272 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 273 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 274 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 275 }; 276 277 union snd_pcm_sync_id { 278 unsigned char id[16]; 279 unsigned short id16[8]; 280 unsigned int id32[4]; 281 }; 282 283 struct snd_pcm_info { 284 unsigned int device; /* RO/WR (control): device number */ 285 unsigned int subdevice; /* RO/WR (control): subdevice number */ 286 int stream; /* RO/WR (control): stream direction */ 287 int card; /* R: card number */ 288 unsigned char id[64]; /* ID (user selectable) */ 289 unsigned char name[80]; /* name of this device */ 290 unsigned char subname[32]; /* subdevice name */ 291 int dev_class; /* SNDRV_PCM_CLASS_* */ 292 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 293 unsigned int subdevices_count; 294 unsigned int subdevices_avail; 295 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 296 unsigned char reserved[64]; /* reserved for future... */ 297 }; 298 299 typedef int __bitwise snd_pcm_hw_param_t; 300 #define SNDRV_PCM_HW_PARAM_ACCESS ((__force snd_pcm_hw_param_t) 0) /* Access type */ 301 #define SNDRV_PCM_HW_PARAM_FORMAT ((__force snd_pcm_hw_param_t) 1) /* Format */ 302 #define SNDRV_PCM_HW_PARAM_SUBFORMAT ((__force snd_pcm_hw_param_t) 2) /* Subformat */ 303 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 304 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 305 #define SNDRV_PCM_HW_PARAM_MASK_INDEX(var) \ 306 ((__force int)(var) - (__force int)SNDRV_PCM_HW_PARAM_FIRST_MASK) 307 308 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS ((__force snd_pcm_hw_param_t) 8) /* Bits per sample */ 309 #define SNDRV_PCM_HW_PARAM_FRAME_BITS ((__force snd_pcm_hw_param_t) 9) /* Bits per frame */ 310 #define SNDRV_PCM_HW_PARAM_CHANNELS ((__force snd_pcm_hw_param_t) 10) /* Channels */ 311 #define SNDRV_PCM_HW_PARAM_RATE ((__force snd_pcm_hw_param_t) 11) /* Approx rate */ 312 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME ((__force snd_pcm_hw_param_t) 12) /* Approx distance between interrupts in us */ 313 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE ((__force snd_pcm_hw_param_t) 13) /* Approx frames between interrupts */ 314 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES ((__force snd_pcm_hw_param_t) 14) /* Approx bytes between interrupts */ 315 #define SNDRV_PCM_HW_PARAM_PERIODS ((__force snd_pcm_hw_param_t) 15) /* Approx interrupts per buffer */ 316 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME ((__force snd_pcm_hw_param_t) 16) /* Approx duration of buffer in us */ 317 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE ((__force snd_pcm_hw_param_t) 17) /* Size of buffer in frames */ 318 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES ((__force snd_pcm_hw_param_t) 18) /* Size of buffer in bytes */ 319 #define SNDRV_PCM_HW_PARAM_TICK_TIME ((__force snd_pcm_hw_param_t) 19) /* Approx tick duration in us */ 320 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 321 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 322 #define SNDRV_PCM_HW_PARAM_INTERVAL_INDEX(var) \ 323 ((__force int)(var) - (__force int)SNDRV_PCM_HW_PARAM_FIRST_INTERVAL) 324 325 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 326 327 struct snd_interval { 328 unsigned int min, max; 329 unsigned int openmin:1, 330 openmax:1, 331 integer:1, 332 empty:1; 333 }; 334 335 #define SNDRV_MASK_MAX 256 336 337 struct snd_mask { 338 u_int32_t bits[(SNDRV_MASK_MAX+31)/32]; 339 }; 340 341 struct snd_pcm_hw_params { 342 unsigned int flags; 343 struct snd_mask masks[ 344 SNDRV_PCM_HW_PARAM_MASK_INDEX(SNDRV_PCM_HW_PARAM_LAST_MASK) + 1]; 345 struct snd_mask mres[5]; /* reserved masks */ 346 struct snd_interval intervals[ 347 SNDRV_PCM_HW_PARAM_INTERVAL_INDEX(SNDRV_PCM_HW_PARAM_LAST_INTERVAL) + 1]; 348 struct snd_interval ires[9]; /* reserved intervals */ 349 unsigned int rmask; /* W: requested masks */ 350 unsigned int cmask; /* R: changed masks */ 351 unsigned int info; /* R: Info flags for returned setup */ 352 unsigned int msbits; /* R: used most significant bits */ 353 unsigned int rate_num; /* R: rate numerator */ 354 unsigned int rate_den; /* R: rate denominator */ 355 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 356 unsigned char reserved[64]; /* reserved for future */ 357 }; 358 359 enum { 360 SNDRV_PCM_TSTAMP_NONE = 0, 361 SNDRV_PCM_TSTAMP_ENABLE, 362 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 363 }; 364 365 struct snd_pcm_sw_params { 366 int tstamp_mode; /* timestamp mode */ 367 unsigned int period_step; 368 unsigned int sleep_min; /* min ticks to sleep */ 369 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 370 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 371 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 372 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 373 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 374 snd_pcm_uframes_t silence_size; /* silence block size */ 375 snd_pcm_uframes_t boundary; /* pointers wrap point */ 376 unsigned char reserved[64]; /* reserved for future */ 377 }; 378 379 struct snd_pcm_channel_info { 380 unsigned int channel; 381 off_t offset; /* mmap offset */ 382 unsigned int first; /* offset to first sample in bits */ 383 unsigned int step; /* samples distance in bits */ 384 }; 385 386 struct snd_pcm_status { 387 snd_pcm_state_t state; /* stream state */ 388 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 389 struct timespec tstamp; /* reference timestamp */ 390 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 391 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 392 snd_pcm_sframes_t delay; /* current delay in frames */ 393 snd_pcm_uframes_t avail; /* number of frames available */ 394 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 395 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 396 snd_pcm_state_t suspended_state; /* suspended stream state */ 397 unsigned char reserved[60]; /* must be filled with zero */ 398 }; 399 400 struct snd_pcm_mmap_status { 401 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 402 int pad1; /* Needed for 64 bit alignment */ 403 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 404 struct timespec tstamp; /* Timestamp */ 405 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 406 }; 407 408 struct snd_pcm_mmap_control { 409 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 410 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 411 }; 412 413 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 414 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 415 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 416 417 struct snd_pcm_sync_ptr { 418 unsigned int flags; 419 union { 420 struct snd_pcm_mmap_status status; 421 unsigned char reserved[64]; 422 } s; 423 union { 424 struct snd_pcm_mmap_control control; 425 unsigned char reserved[64]; 426 } c; 427 }; 428 429 struct snd_xferi { 430 snd_pcm_sframes_t result; 431 void __user *buf; 432 snd_pcm_uframes_t frames; 433 }; 434 435 struct snd_xfern { 436 snd_pcm_sframes_t result; 437 void __user * __user *bufs; 438 snd_pcm_uframes_t frames; 439 }; 440 441 enum { 442 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 443 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 444 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, 445 }; 446 447 enum { 448 SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int), 449 SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info), 450 SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int), 451 SNDRV_PCM_IOCTL_TTSTAMP = _IOW('A', 0x03, int), 452 SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params), 453 SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params), 454 SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12), 455 SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params), 456 SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct snd_pcm_status), 457 SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, snd_pcm_sframes_t), 458 SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22), 459 SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct snd_pcm_sync_ptr), 460 SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct snd_pcm_channel_info), 461 SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40), 462 SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41), 463 SNDRV_PCM_IOCTL_START = _IO('A', 0x42), 464 SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43), 465 SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44), 466 SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int), 467 SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t), 468 SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47), 469 SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48), 470 SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t), 471 SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi), 472 SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi), 473 SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct snd_xfern), 474 SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct snd_xfern), 475 SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int), 476 SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61), 477 }; 478 479 /* Trick to make alsa-lib/acinclude.m4 happy */ 480 #define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND 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 enum { 535 SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int), 536 SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct snd_rawmidi_info), 537 SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct snd_rawmidi_params), 538 SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct snd_rawmidi_status), 539 SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int), 540 SNDRV_RAWMIDI_IOCTL_DRAIN = _IOW('W', 0x31, int), 541 }; 542 543 /* 544 * Timer section - /dev/snd/timer 545 */ 546 547 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 548 549 enum { 550 SNDRV_TIMER_CLASS_NONE = -1, 551 SNDRV_TIMER_CLASS_SLAVE = 0, 552 SNDRV_TIMER_CLASS_GLOBAL, 553 SNDRV_TIMER_CLASS_CARD, 554 SNDRV_TIMER_CLASS_PCM, 555 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 556 }; 557 558 /* slave timer classes */ 559 enum { 560 SNDRV_TIMER_SCLASS_NONE = 0, 561 SNDRV_TIMER_SCLASS_APPLICATION, 562 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 563 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 564 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 565 }; 566 567 /* global timers (device member) */ 568 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 569 #define SNDRV_TIMER_GLOBAL_RTC 1 570 #define SNDRV_TIMER_GLOBAL_HPET 2 571 572 /* info flags */ 573 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 574 575 struct snd_timer_id { 576 int dev_class; 577 int dev_sclass; 578 int card; 579 int device; 580 int subdevice; 581 }; 582 583 struct snd_timer_ginfo { 584 struct snd_timer_id tid; /* requested timer ID */ 585 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 586 int card; /* card number */ 587 unsigned char id[64]; /* timer identification */ 588 unsigned char name[80]; /* timer name */ 589 unsigned long reserved0; /* reserved for future use */ 590 unsigned long resolution; /* average period resolution in ns */ 591 unsigned long resolution_min; /* minimal period resolution in ns */ 592 unsigned long resolution_max; /* maximal period resolution in ns */ 593 unsigned int clients; /* active timer clients */ 594 unsigned char reserved[32]; 595 }; 596 597 struct snd_timer_gparams { 598 struct snd_timer_id tid; /* requested timer ID */ 599 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 600 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 601 unsigned char reserved[32]; 602 }; 603 604 struct snd_timer_gstatus { 605 struct snd_timer_id tid; /* requested timer ID */ 606 unsigned long resolution; /* current period resolution in ns */ 607 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 608 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 609 unsigned char reserved[32]; 610 }; 611 612 struct snd_timer_select { 613 struct snd_timer_id id; /* bind to timer ID */ 614 unsigned char reserved[32]; /* reserved */ 615 }; 616 617 struct snd_timer_info { 618 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 619 int card; /* card number */ 620 unsigned char id[64]; /* timer identificator */ 621 unsigned char name[80]; /* timer name */ 622 unsigned long reserved0; /* reserved for future use */ 623 unsigned long resolution; /* average period resolution in ns */ 624 unsigned char reserved[64]; /* reserved */ 625 }; 626 627 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 628 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 629 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 630 631 struct snd_timer_params { 632 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 633 unsigned int ticks; /* requested resolution in ticks */ 634 unsigned int queue_size; /* total size of queue (32-1024) */ 635 unsigned int reserved0; /* reserved, was: failure locations */ 636 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 637 unsigned char reserved[60]; /* reserved */ 638 }; 639 640 struct snd_timer_status { 641 struct timespec tstamp; /* Timestamp - last update */ 642 unsigned int resolution; /* current period resolution in ns */ 643 unsigned int lost; /* counter of master tick lost */ 644 unsigned int overrun; /* count of read queue overruns */ 645 unsigned int queue; /* used queue size */ 646 unsigned char reserved[64]; /* reserved */ 647 }; 648 649 enum { 650 SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int), 651 SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct snd_timer_id), 652 SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int), 653 SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct snd_timer_ginfo), 654 SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct snd_timer_gparams), 655 SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct snd_timer_gstatus), 656 SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct snd_timer_select), 657 SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct snd_timer_info), 658 SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct snd_timer_params), 659 SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct snd_timer_status), 660 /* The following four ioctls are changed since 1.0.9 due to confliction */ 661 SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0), 662 SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1), 663 SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2), 664 SNDRV_TIMER_IOCTL_PAUSE = _IO('T', 0xa3), 665 }; 666 667 struct snd_timer_read { 668 unsigned int resolution; 669 unsigned int ticks; 670 }; 671 672 enum { 673 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 674 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 675 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 676 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 677 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 678 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 679 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 680 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 681 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 682 /* master timer events for slave timer instances */ 683 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 684 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 685 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 686 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 687 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 688 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 689 }; 690 691 struct snd_timer_tread { 692 int event; 693 struct timespec tstamp; 694 unsigned int val; 695 }; 696 697 /**************************************************************************** 698 * * 699 * Section for driver control interface - /dev/snd/control? * 700 * * 701 ****************************************************************************/ 702 703 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 704 705 struct snd_ctl_card_info { 706 int card; /* card number */ 707 int pad; /* reserved for future (was type) */ 708 unsigned char id[16]; /* ID of card (user selectable) */ 709 unsigned char driver[16]; /* Driver name */ 710 unsigned char name[32]; /* Short name of soundcard */ 711 unsigned char longname[80]; /* name + info text about soundcard */ 712 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 713 unsigned char mixername[80]; /* visual mixer identification */ 714 unsigned char components[80]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 715 unsigned char reserved[48]; /* reserved for future */ 716 }; 717 718 typedef int __bitwise snd_ctl_elem_type_t; 719 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 720 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 721 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 722 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 723 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 724 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 725 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 726 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 727 728 typedef int __bitwise snd_ctl_elem_iface_t; 729 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 730 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 731 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 732 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 733 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 734 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 735 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 736 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 737 738 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 739 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 740 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 741 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 742 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 743 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 744 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 745 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 746 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 747 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 748 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 749 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 750 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 751 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 752 /* bits 30 and 31 are obsoleted (for indirect access) */ 753 754 /* for further details see the ACPI and PCI power management specification */ 755 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 756 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 757 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 758 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 759 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 760 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 761 762 struct snd_ctl_elem_id { 763 unsigned int numid; /* numeric identifier, zero = invalid */ 764 snd_ctl_elem_iface_t iface; /* interface identifier */ 765 unsigned int device; /* device/client number */ 766 unsigned int subdevice; /* subdevice (substream) number */ 767 unsigned char name[44]; /* ASCII name of item */ 768 unsigned int index; /* index of item */ 769 }; 770 771 struct snd_ctl_elem_list { 772 unsigned int offset; /* W: first element ID to get */ 773 unsigned int space; /* W: count of element IDs to get */ 774 unsigned int used; /* R: count of element IDs set */ 775 unsigned int count; /* R: count of all elements */ 776 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 777 unsigned char reserved[50]; 778 }; 779 780 struct snd_ctl_elem_info { 781 struct snd_ctl_elem_id id; /* W: element ID */ 782 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 783 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 784 unsigned int count; /* count of values */ 785 pid_t owner; /* owner's PID of this control */ 786 union { 787 struct { 788 long min; /* R: minimum value */ 789 long max; /* R: maximum value */ 790 long step; /* R: step (0 variable) */ 791 } integer; 792 struct { 793 long long min; /* R: minimum value */ 794 long long max; /* R: maximum value */ 795 long long step; /* R: step (0 variable) */ 796 } integer64; 797 struct { 798 unsigned int items; /* R: number of items */ 799 unsigned int item; /* W: item number */ 800 char name[64]; /* R: value name */ 801 } enumerated; 802 unsigned char reserved[128]; 803 } value; 804 union { 805 unsigned short d[4]; /* dimensions */ 806 unsigned short *d_ptr; /* indirect - obsoleted */ 807 } dimen; 808 unsigned char reserved[64-4*sizeof(unsigned short)]; 809 }; 810 811 struct snd_ctl_elem_value { 812 struct snd_ctl_elem_id id; /* W: element ID */ 813 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 814 union { 815 union { 816 long value[128]; 817 long *value_ptr; /* obsoleted */ 818 } integer; 819 union { 820 long long value[64]; 821 long long *value_ptr; /* obsoleted */ 822 } integer64; 823 union { 824 unsigned int item[128]; 825 unsigned int *item_ptr; /* obsoleted */ 826 } enumerated; 827 union { 828 unsigned char data[512]; 829 unsigned char *data_ptr; /* obsoleted */ 830 } bytes; 831 struct snd_aes_iec958 iec958; 832 } value; /* RO */ 833 struct timespec tstamp; 834 unsigned char reserved[128-sizeof(struct timespec)]; 835 }; 836 837 struct snd_ctl_tlv { 838 unsigned int numid; /* control element numeric identification */ 839 unsigned int length; /* in bytes aligned to 4 */ 840 unsigned int tlv[0]; /* first TLV */ 841 }; 842 843 enum { 844 SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int), 845 SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct snd_ctl_card_info), 846 SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct snd_ctl_elem_list), 847 SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct snd_ctl_elem_info), 848 SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct snd_ctl_elem_value), 849 SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct snd_ctl_elem_value), 850 SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct snd_ctl_elem_id), 851 SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct snd_ctl_elem_id), 852 SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int), 853 SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct snd_ctl_elem_info), 854 SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct snd_ctl_elem_info), 855 SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct snd_ctl_elem_id), 856 SNDRV_CTL_IOCTL_TLV_READ = _IOWR('U', 0x1a, struct snd_ctl_tlv), 857 SNDRV_CTL_IOCTL_TLV_WRITE = _IOWR('U', 0x1b, struct snd_ctl_tlv), 858 SNDRV_CTL_IOCTL_TLV_COMMAND = _IOWR('U', 0x1c, struct snd_ctl_tlv), 859 SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int), 860 SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct snd_hwdep_info), 861 SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int), 862 SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct snd_pcm_info), 863 SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int), 864 SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int), 865 SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct snd_rawmidi_info), 866 SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int), 867 SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int), 868 SNDRV_CTL_IOCTL_POWER_STATE = _IOR('U', 0xd1, int), 869 }; 870 871 /* 872 * Read interface. 873 */ 874 875 enum sndrv_ctl_event_type { 876 SNDRV_CTL_EVENT_ELEM = 0, 877 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 878 }; 879 880 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 881 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 882 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 883 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 884 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 885 886 struct snd_ctl_event { 887 int type; /* event type - SNDRV_CTL_EVENT_* */ 888 union { 889 struct { 890 unsigned int mask; 891 struct snd_ctl_elem_id id; 892 } elem; 893 unsigned char data8[60]; 894 } data; 895 }; 896 897 /* 898 * Control names 899 */ 900 901 #define SNDRV_CTL_NAME_NONE "" 902 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 903 #define SNDRV_CTL_NAME_CAPTURE "Capture " 904 905 #define SNDRV_CTL_NAME_IEC958_NONE "" 906 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 907 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 908 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 909 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 910 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 911 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 912 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 913 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 914 915 /* 916 * 917 */ 918 919 struct snd_xferv { 920 const struct iovec *vector; 921 unsigned long count; 922 }; 923 924 enum { 925 SNDRV_IOCTL_READV = _IOW('K', 0x00, struct snd_xferv), 926 SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct snd_xferv), 927 }; 928 929 #endif /* __SOUND_ASOUND_H */ 930