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 #include <linux/types.h> 27 28 #ifdef __KERNEL__ 29 #include <linux/ioctl.h> 30 #include <linux/time.h> 31 #include <asm/byteorder.h> 32 33 #ifdef __LITTLE_ENDIAN 34 #define SNDRV_LITTLE_ENDIAN 35 #else 36 #ifdef __BIG_ENDIAN 37 #define SNDRV_BIG_ENDIAN 38 #else 39 #error "Unsupported endian..." 40 #endif 41 #endif 42 43 #endif /* __KERNEL__ **/ 44 45 /* 46 * protocol version 47 */ 48 49 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 50 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 51 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 52 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 53 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 54 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 55 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 56 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 57 58 /**************************************************************************** 59 * * 60 * Digital audio interface * 61 * * 62 ****************************************************************************/ 63 64 struct snd_aes_iec958 { 65 unsigned char status[24]; /* AES/IEC958 channel status bits */ 66 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 67 unsigned char pad; /* nothing */ 68 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 69 }; 70 71 /**************************************************************************** 72 * * 73 * Section for driver hardware dependent interface - /dev/snd/hw? * 74 * * 75 ****************************************************************************/ 76 77 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 78 79 enum { 80 SNDRV_HWDEP_IFACE_OPL2 = 0, 81 SNDRV_HWDEP_IFACE_OPL3, 82 SNDRV_HWDEP_IFACE_OPL4, 83 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 84 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 85 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 86 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 87 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 88 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 89 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 90 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 91 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 92 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 93 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 94 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 95 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 96 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 97 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 98 99 /* Don't forget to change the following: */ 100 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM 101 }; 102 103 struct snd_hwdep_info { 104 unsigned int device; /* WR: device number */ 105 int card; /* R: card number */ 106 unsigned char id[64]; /* ID (user selectable) */ 107 unsigned char name[80]; /* hwdep name */ 108 int iface; /* hwdep interface */ 109 unsigned char reserved[64]; /* reserved for future */ 110 }; 111 112 /* generic DSP loader */ 113 struct snd_hwdep_dsp_status { 114 unsigned int version; /* R: driver-specific version */ 115 unsigned char id[32]; /* R: driver-specific ID string */ 116 unsigned int num_dsps; /* R: number of DSP images to transfer */ 117 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 118 unsigned int chip_ready; /* R: 1 = initialization finished */ 119 unsigned char reserved[16]; /* reserved for future use */ 120 }; 121 122 struct snd_hwdep_dsp_image { 123 unsigned int index; /* W: DSP index */ 124 unsigned char name[64]; /* W: ID (e.g. file name) */ 125 unsigned char __user *image; /* W: binary image */ 126 size_t length; /* W: size of image in bytes */ 127 unsigned long driver_data; /* W: driver-specific data */ 128 }; 129 130 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 131 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 132 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 133 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 134 135 /***************************************************************************** 136 * * 137 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 138 * * 139 *****************************************************************************/ 140 141 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 10) 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_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 216 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 217 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 218 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 219 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_G723_40_1B 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_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 264 265 typedef int __bitwise snd_pcm_state_t; 266 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 267 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 268 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 269 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 270 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 271 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 272 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 273 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 274 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 275 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 276 277 enum { 278 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 279 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 280 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 281 }; 282 283 union snd_pcm_sync_id { 284 unsigned char id[16]; 285 unsigned short id16[8]; 286 unsigned int id32[4]; 287 }; 288 289 struct snd_pcm_info { 290 unsigned int device; /* RO/WR (control): device number */ 291 unsigned int subdevice; /* RO/WR (control): subdevice number */ 292 int stream; /* RO/WR (control): stream direction */ 293 int card; /* R: card number */ 294 unsigned char id[64]; /* ID (user selectable) */ 295 unsigned char name[80]; /* name of this device */ 296 unsigned char subname[32]; /* subdevice name */ 297 int dev_class; /* SNDRV_PCM_CLASS_* */ 298 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 299 unsigned int subdevices_count; 300 unsigned int subdevices_avail; 301 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 302 unsigned char reserved[64]; /* reserved for future... */ 303 }; 304 305 typedef int snd_pcm_hw_param_t; 306 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 307 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 308 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 309 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 310 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 311 312 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 313 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 314 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 315 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 316 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 317 * interrupts in us 318 */ 319 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 320 * interrupts 321 */ 322 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 323 * interrupts 324 */ 325 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 326 * buffer 327 */ 328 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 329 * in us 330 */ 331 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 332 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 333 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 334 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 335 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 336 337 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 338 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 339 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 340 341 struct snd_interval { 342 unsigned int min, max; 343 unsigned int openmin:1, 344 openmax:1, 345 integer:1, 346 empty:1; 347 }; 348 349 #define SNDRV_MASK_MAX 256 350 351 struct snd_mask { 352 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 353 }; 354 355 struct snd_pcm_hw_params { 356 unsigned int flags; 357 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 358 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 359 struct snd_mask mres[5]; /* reserved masks */ 360 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 361 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 362 struct snd_interval ires[9]; /* reserved intervals */ 363 unsigned int rmask; /* W: requested masks */ 364 unsigned int cmask; /* R: changed masks */ 365 unsigned int info; /* R: Info flags for returned setup */ 366 unsigned int msbits; /* R: used most significant bits */ 367 unsigned int rate_num; /* R: rate numerator */ 368 unsigned int rate_den; /* R: rate denominator */ 369 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 370 unsigned char reserved[64]; /* reserved for future */ 371 }; 372 373 enum { 374 SNDRV_PCM_TSTAMP_NONE = 0, 375 SNDRV_PCM_TSTAMP_ENABLE, 376 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 377 }; 378 379 struct snd_pcm_sw_params { 380 int tstamp_mode; /* timestamp mode */ 381 unsigned int period_step; 382 unsigned int sleep_min; /* min ticks to sleep */ 383 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 384 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 385 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 386 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 387 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 388 snd_pcm_uframes_t silence_size; /* silence block size */ 389 snd_pcm_uframes_t boundary; /* pointers wrap point */ 390 unsigned char reserved[64]; /* reserved for future */ 391 }; 392 393 struct snd_pcm_channel_info { 394 unsigned int channel; 395 __kernel_off_t offset; /* mmap offset */ 396 unsigned int first; /* offset to first sample in bits */ 397 unsigned int step; /* samples distance in bits */ 398 }; 399 400 struct snd_pcm_status { 401 snd_pcm_state_t state; /* stream state */ 402 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 403 struct timespec tstamp; /* reference timestamp */ 404 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 405 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 406 snd_pcm_sframes_t delay; /* current delay in frames */ 407 snd_pcm_uframes_t avail; /* number of frames available */ 408 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 409 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 410 snd_pcm_state_t suspended_state; /* suspended stream state */ 411 unsigned char reserved[60]; /* must be filled with zero */ 412 }; 413 414 struct snd_pcm_mmap_status { 415 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 416 int pad1; /* Needed for 64 bit alignment */ 417 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 418 struct timespec tstamp; /* Timestamp */ 419 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 420 }; 421 422 struct snd_pcm_mmap_control { 423 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 424 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 425 }; 426 427 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 428 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 429 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 430 431 struct snd_pcm_sync_ptr { 432 unsigned int flags; 433 union { 434 struct snd_pcm_mmap_status status; 435 unsigned char reserved[64]; 436 } s; 437 union { 438 struct snd_pcm_mmap_control control; 439 unsigned char reserved[64]; 440 } c; 441 }; 442 443 struct snd_xferi { 444 snd_pcm_sframes_t result; 445 void __user *buf; 446 snd_pcm_uframes_t frames; 447 }; 448 449 struct snd_xfern { 450 snd_pcm_sframes_t result; 451 void __user * __user *bufs; 452 snd_pcm_uframes_t frames; 453 }; 454 455 enum { 456 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 457 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 458 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, 459 }; 460 461 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 462 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 463 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 464 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 465 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 466 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 467 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 468 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 469 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 470 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 471 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 472 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 473 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 474 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 475 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 476 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 477 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 478 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 479 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 480 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 481 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 482 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 483 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 484 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 485 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 486 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 487 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 488 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 489 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 490 491 /***************************************************************************** 492 * * 493 * MIDI v1.0 interface * 494 * * 495 *****************************************************************************/ 496 497 /* 498 * Raw MIDI section - /dev/snd/midi?? 499 */ 500 501 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 502 503 enum { 504 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 505 SNDRV_RAWMIDI_STREAM_INPUT, 506 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 507 }; 508 509 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 510 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 511 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 512 513 struct snd_rawmidi_info { 514 unsigned int device; /* RO/WR (control): device number */ 515 unsigned int subdevice; /* RO/WR (control): subdevice number */ 516 int stream; /* WR: stream */ 517 int card; /* R: card number */ 518 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 519 unsigned char id[64]; /* ID (user selectable) */ 520 unsigned char name[80]; /* name of device */ 521 unsigned char subname[32]; /* name of active or selected subdevice */ 522 unsigned int subdevices_count; 523 unsigned int subdevices_avail; 524 unsigned char reserved[64]; /* reserved for future use */ 525 }; 526 527 struct snd_rawmidi_params { 528 int stream; 529 size_t buffer_size; /* queue size in bytes */ 530 size_t avail_min; /* minimum avail bytes for wakeup */ 531 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 532 unsigned char reserved[16]; /* reserved for future use */ 533 }; 534 535 struct snd_rawmidi_status { 536 int stream; 537 struct timespec tstamp; /* Timestamp */ 538 size_t avail; /* available bytes */ 539 size_t xruns; /* count of overruns since last status (in bytes) */ 540 unsigned char reserved[16]; /* reserved for future use */ 541 }; 542 543 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 544 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 545 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 546 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 547 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 548 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 549 550 /* 551 * Timer section - /dev/snd/timer 552 */ 553 554 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 555 556 enum { 557 SNDRV_TIMER_CLASS_NONE = -1, 558 SNDRV_TIMER_CLASS_SLAVE = 0, 559 SNDRV_TIMER_CLASS_GLOBAL, 560 SNDRV_TIMER_CLASS_CARD, 561 SNDRV_TIMER_CLASS_PCM, 562 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 563 }; 564 565 /* slave timer classes */ 566 enum { 567 SNDRV_TIMER_SCLASS_NONE = 0, 568 SNDRV_TIMER_SCLASS_APPLICATION, 569 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 570 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 571 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 572 }; 573 574 /* global timers (device member) */ 575 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 576 #define SNDRV_TIMER_GLOBAL_RTC 1 577 #define SNDRV_TIMER_GLOBAL_HPET 2 578 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 579 580 /* info flags */ 581 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 582 583 struct snd_timer_id { 584 int dev_class; 585 int dev_sclass; 586 int card; 587 int device; 588 int subdevice; 589 }; 590 591 struct snd_timer_ginfo { 592 struct snd_timer_id tid; /* requested timer ID */ 593 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 594 int card; /* card number */ 595 unsigned char id[64]; /* timer identification */ 596 unsigned char name[80]; /* timer name */ 597 unsigned long reserved0; /* reserved for future use */ 598 unsigned long resolution; /* average period resolution in ns */ 599 unsigned long resolution_min; /* minimal period resolution in ns */ 600 unsigned long resolution_max; /* maximal period resolution in ns */ 601 unsigned int clients; /* active timer clients */ 602 unsigned char reserved[32]; 603 }; 604 605 struct snd_timer_gparams { 606 struct snd_timer_id tid; /* requested timer ID */ 607 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 608 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 609 unsigned char reserved[32]; 610 }; 611 612 struct snd_timer_gstatus { 613 struct snd_timer_id tid; /* requested timer ID */ 614 unsigned long resolution; /* current period resolution in ns */ 615 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 616 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 617 unsigned char reserved[32]; 618 }; 619 620 struct snd_timer_select { 621 struct snd_timer_id id; /* bind to timer ID */ 622 unsigned char reserved[32]; /* reserved */ 623 }; 624 625 struct snd_timer_info { 626 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 627 int card; /* card number */ 628 unsigned char id[64]; /* timer identificator */ 629 unsigned char name[80]; /* timer name */ 630 unsigned long reserved0; /* reserved for future use */ 631 unsigned long resolution; /* average period resolution in ns */ 632 unsigned char reserved[64]; /* reserved */ 633 }; 634 635 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 636 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 637 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 638 639 struct snd_timer_params { 640 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 641 unsigned int ticks; /* requested resolution in ticks */ 642 unsigned int queue_size; /* total size of queue (32-1024) */ 643 unsigned int reserved0; /* reserved, was: failure locations */ 644 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 645 unsigned char reserved[60]; /* reserved */ 646 }; 647 648 struct snd_timer_status { 649 struct timespec tstamp; /* Timestamp - last update */ 650 unsigned int resolution; /* current period resolution in ns */ 651 unsigned int lost; /* counter of master tick lost */ 652 unsigned int overrun; /* count of read queue overruns */ 653 unsigned int queue; /* used queue size */ 654 unsigned char reserved[64]; /* reserved */ 655 }; 656 657 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 658 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 659 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) 660 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 661 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 662 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 663 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 664 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 665 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 666 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 667 /* The following four ioctls are changed since 1.0.9 due to confliction */ 668 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 669 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 670 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 671 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 672 673 struct snd_timer_read { 674 unsigned int resolution; 675 unsigned int ticks; 676 }; 677 678 enum { 679 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 680 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 681 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 682 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 683 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 684 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 685 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 686 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 687 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 688 /* master timer events for slave timer instances */ 689 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 690 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 691 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 692 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 693 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 694 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 695 }; 696 697 struct snd_timer_tread { 698 int event; 699 struct timespec tstamp; 700 unsigned int val; 701 }; 702 703 /**************************************************************************** 704 * * 705 * Section for driver control interface - /dev/snd/control? * 706 * * 707 ****************************************************************************/ 708 709 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 710 711 struct snd_ctl_card_info { 712 int card; /* card number */ 713 int pad; /* reserved for future (was type) */ 714 unsigned char id[16]; /* ID of card (user selectable) */ 715 unsigned char driver[16]; /* Driver name */ 716 unsigned char name[32]; /* Short name of soundcard */ 717 unsigned char longname[80]; /* name + info text about soundcard */ 718 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 719 unsigned char mixername[80]; /* visual mixer identification */ 720 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 721 }; 722 723 typedef int __bitwise snd_ctl_elem_type_t; 724 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 725 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 726 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 727 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 728 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 729 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 730 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 731 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 732 733 typedef int __bitwise snd_ctl_elem_iface_t; 734 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 735 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 736 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 737 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 738 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 739 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 740 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 741 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 742 743 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 744 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 745 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 746 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 747 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 748 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 749 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 750 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 751 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 752 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 753 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 754 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 755 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 756 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 757 /* bits 30 and 31 are obsoleted (for indirect access) */ 758 759 /* for further details see the ACPI and PCI power management specification */ 760 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 761 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 762 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 763 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 764 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 765 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 766 767 struct snd_ctl_elem_id { 768 unsigned int numid; /* numeric identifier, zero = invalid */ 769 snd_ctl_elem_iface_t iface; /* interface identifier */ 770 unsigned int device; /* device/client number */ 771 unsigned int subdevice; /* subdevice (substream) number */ 772 unsigned char name[44]; /* ASCII name of item */ 773 unsigned int index; /* index of item */ 774 }; 775 776 struct snd_ctl_elem_list { 777 unsigned int offset; /* W: first element ID to get */ 778 unsigned int space; /* W: count of element IDs to get */ 779 unsigned int used; /* R: count of element IDs set */ 780 unsigned int count; /* R: count of all elements */ 781 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 782 unsigned char reserved[50]; 783 }; 784 785 struct snd_ctl_elem_info { 786 struct snd_ctl_elem_id id; /* W: element ID */ 787 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 788 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 789 unsigned int count; /* count of values */ 790 __kernel_pid_t owner; /* owner's PID of this control */ 791 union { 792 struct { 793 long min; /* R: minimum value */ 794 long max; /* R: maximum value */ 795 long step; /* R: step (0 variable) */ 796 } integer; 797 struct { 798 long long min; /* R: minimum value */ 799 long long max; /* R: maximum value */ 800 long long step; /* R: step (0 variable) */ 801 } integer64; 802 struct { 803 unsigned int items; /* R: number of items */ 804 unsigned int item; /* W: item number */ 805 char name[64]; /* R: value name */ 806 } enumerated; 807 unsigned char reserved[128]; 808 } value; 809 union { 810 unsigned short d[4]; /* dimensions */ 811 unsigned short *d_ptr; /* indirect - obsoleted */ 812 } dimen; 813 unsigned char reserved[64-4*sizeof(unsigned short)]; 814 }; 815 816 struct snd_ctl_elem_value { 817 struct snd_ctl_elem_id id; /* W: element ID */ 818 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 819 union { 820 union { 821 long value[128]; 822 long *value_ptr; /* obsoleted */ 823 } integer; 824 union { 825 long long value[64]; 826 long long *value_ptr; /* obsoleted */ 827 } integer64; 828 union { 829 unsigned int item[128]; 830 unsigned int *item_ptr; /* obsoleted */ 831 } enumerated; 832 union { 833 unsigned char data[512]; 834 unsigned char *data_ptr; /* obsoleted */ 835 } bytes; 836 struct snd_aes_iec958 iec958; 837 } value; /* RO */ 838 struct timespec tstamp; 839 unsigned char reserved[128-sizeof(struct timespec)]; 840 }; 841 842 struct snd_ctl_tlv { 843 unsigned int numid; /* control element numeric identification */ 844 unsigned int length; /* in bytes aligned to 4 */ 845 unsigned int tlv[0]; /* first TLV */ 846 }; 847 848 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 849 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 850 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 851 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 852 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 853 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 854 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 855 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 856 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 857 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 858 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 859 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 860 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 861 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 862 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 863 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 864 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 865 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 866 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 867 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 868 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 869 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 870 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 871 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 872 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 873 874 /* 875 * Read interface. 876 */ 877 878 enum sndrv_ctl_event_type { 879 SNDRV_CTL_EVENT_ELEM = 0, 880 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 881 }; 882 883 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 884 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 885 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 886 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 887 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 888 889 struct snd_ctl_event { 890 int type; /* event type - SNDRV_CTL_EVENT_* */ 891 union { 892 struct { 893 unsigned int mask; 894 struct snd_ctl_elem_id id; 895 } elem; 896 unsigned char data8[60]; 897 } data; 898 }; 899 900 /* 901 * Control names 902 */ 903 904 #define SNDRV_CTL_NAME_NONE "" 905 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 906 #define SNDRV_CTL_NAME_CAPTURE "Capture " 907 908 #define SNDRV_CTL_NAME_IEC958_NONE "" 909 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 910 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 911 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 912 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 913 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 914 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 915 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 916 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 917 918 #endif /* __SOUND_ASOUND_H */ 919