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 #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_SB_RC 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, 8) 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 305 306 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS ((__force snd_pcm_hw_param_t) 8) /* Bits per sample */ 307 #define SNDRV_PCM_HW_PARAM_FRAME_BITS ((__force snd_pcm_hw_param_t) 9) /* Bits per frame */ 308 #define SNDRV_PCM_HW_PARAM_CHANNELS ((__force snd_pcm_hw_param_t) 10) /* Channels */ 309 #define SNDRV_PCM_HW_PARAM_RATE ((__force snd_pcm_hw_param_t) 11) /* Approx rate */ 310 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME ((__force snd_pcm_hw_param_t) 12) /* Approx distance between interrupts in us */ 311 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE ((__force snd_pcm_hw_param_t) 13) /* Approx frames between interrupts */ 312 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES ((__force snd_pcm_hw_param_t) 14) /* Approx bytes between interrupts */ 313 #define SNDRV_PCM_HW_PARAM_PERIODS ((__force snd_pcm_hw_param_t) 15) /* Approx interrupts per buffer */ 314 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME ((__force snd_pcm_hw_param_t) 16) /* Approx duration of buffer in us */ 315 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE ((__force snd_pcm_hw_param_t) 17) /* Size of buffer in frames */ 316 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES ((__force snd_pcm_hw_param_t) 18) /* Size of buffer in bytes */ 317 #define SNDRV_PCM_HW_PARAM_TICK_TIME ((__force snd_pcm_hw_param_t) 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 */ 322 323 struct snd_interval { 324 unsigned int min, max; 325 unsigned int openmin:1, 326 openmax:1, 327 integer:1, 328 empty:1; 329 }; 330 331 #define SNDRV_MASK_MAX 256 332 333 struct snd_mask { 334 u_int32_t bits[(SNDRV_MASK_MAX+31)/32]; 335 }; 336 337 struct snd_pcm_hw_params { 338 unsigned int flags; 339 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 340 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 341 struct snd_mask mres[5]; /* reserved masks */ 342 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 343 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 344 struct snd_interval ires[9]; /* reserved intervals */ 345 unsigned int rmask; /* W: requested masks */ 346 unsigned int cmask; /* R: changed masks */ 347 unsigned int info; /* R: Info flags for returned setup */ 348 unsigned int msbits; /* R: used most significant bits */ 349 unsigned int rate_num; /* R: rate numerator */ 350 unsigned int rate_den; /* R: rate denominator */ 351 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 352 unsigned char reserved[64]; /* reserved for future */ 353 }; 354 355 enum { 356 SNDRV_PCM_TSTAMP_NONE = 0, 357 SNDRV_PCM_TSTAMP_MMAP, 358 SNDRV_PCM_TSTAMP_ENABLE = SNDRV_PCM_TSTAMP_MMAP, 359 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 360 }; 361 362 struct snd_pcm_sw_params { 363 int tstamp_mode; /* timestamp mode */ 364 unsigned int period_step; 365 unsigned int sleep_min; /* min ticks to sleep */ 366 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 367 snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */ 368 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 369 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 370 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 371 snd_pcm_uframes_t silence_size; /* silence block size */ 372 snd_pcm_uframes_t boundary; /* pointers wrap point */ 373 unsigned char reserved[64]; /* reserved for future */ 374 }; 375 376 struct snd_pcm_channel_info { 377 unsigned int channel; 378 off_t offset; /* mmap offset */ 379 unsigned int first; /* offset to first sample in bits */ 380 unsigned int step; /* samples distance in bits */ 381 }; 382 383 struct snd_pcm_status { 384 snd_pcm_state_t state; /* stream state */ 385 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 386 struct timespec tstamp; /* reference timestamp */ 387 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 388 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 389 snd_pcm_sframes_t delay; /* current delay in frames */ 390 snd_pcm_uframes_t avail; /* number of frames available */ 391 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 392 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 393 snd_pcm_state_t suspended_state; /* suspended stream state */ 394 unsigned char reserved[60]; /* must be filled with zero */ 395 }; 396 397 struct snd_pcm_mmap_status { 398 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 399 int pad1; /* Needed for 64 bit alignment */ 400 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 401 struct timespec tstamp; /* Timestamp */ 402 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 403 }; 404 405 struct snd_pcm_mmap_control { 406 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 407 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 408 }; 409 410 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 411 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 412 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 413 414 struct snd_pcm_sync_ptr { 415 unsigned int flags; 416 union { 417 struct snd_pcm_mmap_status status; 418 unsigned char reserved[64]; 419 } s; 420 union { 421 struct snd_pcm_mmap_control control; 422 unsigned char reserved[64]; 423 } c; 424 }; 425 426 struct snd_xferi { 427 snd_pcm_sframes_t result; 428 void __user *buf; 429 snd_pcm_uframes_t frames; 430 }; 431 432 struct snd_xfern { 433 snd_pcm_sframes_t result; 434 void __user * __user *bufs; 435 snd_pcm_uframes_t frames; 436 }; 437 438 enum { 439 SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int), 440 SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info), 441 SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int), 442 SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params), 443 SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params), 444 SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12), 445 SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params), 446 SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct snd_pcm_status), 447 SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, snd_pcm_sframes_t), 448 SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22), 449 SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct snd_pcm_sync_ptr), 450 SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct snd_pcm_channel_info), 451 SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40), 452 SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41), 453 SNDRV_PCM_IOCTL_START = _IO('A', 0x42), 454 SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43), 455 SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44), 456 SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int), 457 SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t), 458 SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47), 459 SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48), 460 SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t), 461 SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi), 462 SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi), 463 SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct snd_xfern), 464 SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct snd_xfern), 465 SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int), 466 SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61), 467 }; 468 469 /* Trick to make alsa-lib/acinclude.m4 happy */ 470 #define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND 471 472 /***************************************************************************** 473 * * 474 * MIDI v1.0 interface * 475 * * 476 *****************************************************************************/ 477 478 /* 479 * Raw MIDI section - /dev/snd/midi?? 480 */ 481 482 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 483 484 enum { 485 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 486 SNDRV_RAWMIDI_STREAM_INPUT, 487 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 488 }; 489 490 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 491 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 492 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 493 494 struct snd_rawmidi_info { 495 unsigned int device; /* RO/WR (control): device number */ 496 unsigned int subdevice; /* RO/WR (control): subdevice number */ 497 int stream; /* WR: stream */ 498 int card; /* R: card number */ 499 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 500 unsigned char id[64]; /* ID (user selectable) */ 501 unsigned char name[80]; /* name of device */ 502 unsigned char subname[32]; /* name of active or selected subdevice */ 503 unsigned int subdevices_count; 504 unsigned int subdevices_avail; 505 unsigned char reserved[64]; /* reserved for future use */ 506 }; 507 508 struct snd_rawmidi_params { 509 int stream; 510 size_t buffer_size; /* queue size in bytes */ 511 size_t avail_min; /* minimum avail bytes for wakeup */ 512 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 513 unsigned char reserved[16]; /* reserved for future use */ 514 }; 515 516 struct snd_rawmidi_status { 517 int stream; 518 struct timespec tstamp; /* Timestamp */ 519 size_t avail; /* available bytes */ 520 size_t xruns; /* count of overruns since last status (in bytes) */ 521 unsigned char reserved[16]; /* reserved for future use */ 522 }; 523 524 enum { 525 SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int), 526 SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct snd_rawmidi_info), 527 SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct snd_rawmidi_params), 528 SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct snd_rawmidi_status), 529 SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int), 530 SNDRV_RAWMIDI_IOCTL_DRAIN = _IOW('W', 0x31, int), 531 }; 532 533 /* 534 * Timer section - /dev/snd/timer 535 */ 536 537 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 538 539 enum { 540 SNDRV_TIMER_CLASS_NONE = -1, 541 SNDRV_TIMER_CLASS_SLAVE = 0, 542 SNDRV_TIMER_CLASS_GLOBAL, 543 SNDRV_TIMER_CLASS_CARD, 544 SNDRV_TIMER_CLASS_PCM, 545 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 546 }; 547 548 /* slave timer classes */ 549 enum { 550 SNDRV_TIMER_SCLASS_NONE = 0, 551 SNDRV_TIMER_SCLASS_APPLICATION, 552 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 553 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 554 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 555 }; 556 557 /* global timers (device member) */ 558 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 559 #define SNDRV_TIMER_GLOBAL_RTC 1 560 #define SNDRV_TIMER_GLOBAL_HPET 2 561 562 /* info flags */ 563 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 564 565 struct snd_timer_id { 566 int dev_class; 567 int dev_sclass; 568 int card; 569 int device; 570 int subdevice; 571 }; 572 573 struct snd_timer_ginfo { 574 struct snd_timer_id tid; /* requested timer ID */ 575 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 576 int card; /* card number */ 577 unsigned char id[64]; /* timer identification */ 578 unsigned char name[80]; /* timer name */ 579 unsigned long reserved0; /* reserved for future use */ 580 unsigned long resolution; /* average period resolution in ns */ 581 unsigned long resolution_min; /* minimal period resolution in ns */ 582 unsigned long resolution_max; /* maximal period resolution in ns */ 583 unsigned int clients; /* active timer clients */ 584 unsigned char reserved[32]; 585 }; 586 587 struct snd_timer_gparams { 588 struct snd_timer_id tid; /* requested timer ID */ 589 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 590 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 591 unsigned char reserved[32]; 592 }; 593 594 struct snd_timer_gstatus { 595 struct snd_timer_id tid; /* requested timer ID */ 596 unsigned long resolution; /* current period resolution in ns */ 597 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 598 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 599 unsigned char reserved[32]; 600 }; 601 602 struct snd_timer_select { 603 struct snd_timer_id id; /* bind to timer ID */ 604 unsigned char reserved[32]; /* reserved */ 605 }; 606 607 struct snd_timer_info { 608 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 609 int card; /* card number */ 610 unsigned char id[64]; /* timer identificator */ 611 unsigned char name[80]; /* timer name */ 612 unsigned long reserved0; /* reserved for future use */ 613 unsigned long resolution; /* average period resolution in ns */ 614 unsigned char reserved[64]; /* reserved */ 615 }; 616 617 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 618 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 619 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 620 621 struct snd_timer_params { 622 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 623 unsigned int ticks; /* requested resolution in ticks */ 624 unsigned int queue_size; /* total size of queue (32-1024) */ 625 unsigned int reserved0; /* reserved, was: failure locations */ 626 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 627 unsigned char reserved[60]; /* reserved */ 628 }; 629 630 struct snd_timer_status { 631 struct timespec tstamp; /* Timestamp - last update */ 632 unsigned int resolution; /* current period resolution in ns */ 633 unsigned int lost; /* counter of master tick lost */ 634 unsigned int overrun; /* count of read queue overruns */ 635 unsigned int queue; /* used queue size */ 636 unsigned char reserved[64]; /* reserved */ 637 }; 638 639 enum { 640 SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int), 641 SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct snd_timer_id), 642 SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int), 643 SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct snd_timer_ginfo), 644 SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct snd_timer_gparams), 645 SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct snd_timer_gstatus), 646 SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct snd_timer_select), 647 SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct snd_timer_info), 648 SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct snd_timer_params), 649 SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct snd_timer_status), 650 /* The following four ioctls are changed since 1.0.9 due to confliction */ 651 SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0), 652 SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1), 653 SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2), 654 SNDRV_TIMER_IOCTL_PAUSE = _IO('T', 0xa3), 655 }; 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, 4) 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[80]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 705 unsigned char reserved[48]; /* reserved for future */ 706 }; 707 708 typedef int __bitwise snd_ctl_elem_type_t; 709 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 710 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 711 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 712 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 713 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 714 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 715 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 716 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 717 718 typedef int __bitwise snd_ctl_elem_iface_t; 719 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 720 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 721 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 722 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 723 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 724 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 725 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 726 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 727 728 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 729 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 730 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 731 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 732 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 733 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 734 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 735 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 736 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 737 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 738 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 739 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 740 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 741 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 742 #define SNDRV_CTL_ELEM_ACCESS_DINDIRECT (1<<30) /* indirect access for matrix dimensions in the info structure */ 743 #define SNDRV_CTL_ELEM_ACCESS_INDIRECT (1<<31) /* indirect access for element value in the value structure */ 744 745 /* for further details see the ACPI and PCI power management specification */ 746 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 747 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 748 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 749 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 750 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 751 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 752 753 struct snd_ctl_elem_id { 754 unsigned int numid; /* numeric identifier, zero = invalid */ 755 snd_ctl_elem_iface_t iface; /* interface identifier */ 756 unsigned int device; /* device/client number */ 757 unsigned int subdevice; /* subdevice (substream) number */ 758 unsigned char name[44]; /* ASCII name of item */ 759 unsigned int index; /* index of item */ 760 }; 761 762 struct snd_ctl_elem_list { 763 unsigned int offset; /* W: first element ID to get */ 764 unsigned int space; /* W: count of element IDs to get */ 765 unsigned int used; /* R: count of element IDs set */ 766 unsigned int count; /* R: count of all elements */ 767 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 768 unsigned char reserved[50]; 769 }; 770 771 struct snd_ctl_elem_info { 772 struct snd_ctl_elem_id id; /* W: element ID */ 773 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 774 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 775 unsigned int count; /* count of values */ 776 pid_t owner; /* owner's PID of this control */ 777 union { 778 struct { 779 long min; /* R: minimum value */ 780 long max; /* R: maximum value */ 781 long step; /* R: step (0 variable) */ 782 } integer; 783 struct { 784 long long min; /* R: minimum value */ 785 long long max; /* R: maximum value */ 786 long long step; /* R: step (0 variable) */ 787 } integer64; 788 struct { 789 unsigned int items; /* R: number of items */ 790 unsigned int item; /* W: item number */ 791 char name[64]; /* R: value name */ 792 } enumerated; 793 unsigned char reserved[128]; 794 } value; 795 union { 796 unsigned short d[4]; /* dimensions */ 797 unsigned short *d_ptr; /* indirect */ 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: use indirect pointer (xxx_ptr member) */ 805 union { 806 union { 807 long value[128]; 808 long *value_ptr; 809 } integer; 810 union { 811 long long value[64]; 812 long long *value_ptr; 813 } integer64; 814 union { 815 unsigned int item[128]; 816 unsigned int *item_ptr; 817 } enumerated; 818 union { 819 unsigned char data[512]; 820 unsigned char *data_ptr; 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 enum { 835 SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int), 836 SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct snd_ctl_card_info), 837 SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct snd_ctl_elem_list), 838 SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct snd_ctl_elem_info), 839 SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct snd_ctl_elem_value), 840 SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct snd_ctl_elem_value), 841 SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct snd_ctl_elem_id), 842 SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct snd_ctl_elem_id), 843 SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int), 844 SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct snd_ctl_elem_info), 845 SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct snd_ctl_elem_info), 846 SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct snd_ctl_elem_id), 847 SNDRV_CTL_IOCTL_TLV_READ = _IOWR('U', 0x1a, struct snd_ctl_tlv), 848 SNDRV_CTL_IOCTL_TLV_WRITE = _IOWR('U', 0x1b, struct snd_ctl_tlv), 849 SNDRV_CTL_IOCTL_TLV_COMMAND = _IOWR('U', 0x1c, struct snd_ctl_tlv), 850 SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int), 851 SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct snd_hwdep_info), 852 SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int), 853 SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct snd_pcm_info), 854 SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int), 855 SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int), 856 SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct snd_rawmidi_info), 857 SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int), 858 SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int), 859 SNDRV_CTL_IOCTL_POWER_STATE = _IOR('U', 0xd1, int), 860 }; 861 862 /* 863 * Read interface. 864 */ 865 866 enum sndrv_ctl_event_type { 867 SNDRV_CTL_EVENT_ELEM = 0, 868 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 869 }; 870 871 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 872 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 873 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 874 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 875 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 876 877 struct snd_ctl_event { 878 int type; /* event type - SNDRV_CTL_EVENT_* */ 879 union { 880 struct { 881 unsigned int mask; 882 struct snd_ctl_elem_id id; 883 } elem; 884 unsigned char data8[60]; 885 } data; 886 }; 887 888 /* 889 * Control names 890 */ 891 892 #define SNDRV_CTL_NAME_NONE "" 893 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 894 #define SNDRV_CTL_NAME_CAPTURE "Capture " 895 896 #define SNDRV_CTL_NAME_IEC958_NONE "" 897 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 898 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 899 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 900 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 901 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 902 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 903 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 904 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 905 906 /* 907 * 908 */ 909 910 struct snd_xferv { 911 const struct iovec *vector; 912 unsigned long count; 913 }; 914 915 enum { 916 SNDRV_IOCTL_READV = _IOW('K', 0x00, struct snd_xferv), 917 SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct snd_xferv), 918 }; 919 920 #endif /* __SOUND_ASOUND_H */ 921
