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 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 97 98 /* Don't forget to change the following: */ 99 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM 100 }; 101 102 struct snd_hwdep_info { 103 unsigned int device; /* WR: device number */ 104 int card; /* R: card number */ 105 unsigned char id[64]; /* ID (user selectable) */ 106 unsigned char name[80]; /* hwdep name */ 107 int iface; /* hwdep interface */ 108 unsigned char reserved[64]; /* reserved for future */ 109 }; 110 111 /* generic DSP loader */ 112 struct snd_hwdep_dsp_status { 113 unsigned int version; /* R: driver-specific version */ 114 unsigned char id[32]; /* R: driver-specific ID string */ 115 unsigned int num_dsps; /* R: number of DSP images to transfer */ 116 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 117 unsigned int chip_ready; /* R: 1 = initialization finished */ 118 unsigned char reserved[16]; /* reserved for future use */ 119 }; 120 121 struct snd_hwdep_dsp_image { 122 unsigned int index; /* W: DSP index */ 123 unsigned char name[64]; /* W: ID (e.g. file name) */ 124 unsigned char __user *image; /* W: binary image */ 125 size_t length; /* W: size of image in bytes */ 126 unsigned long driver_data; /* W: driver-specific data */ 127 }; 128 129 enum { 130 SNDRV_HWDEP_IOCTL_PVERSION = _IOR ('H', 0x00, int), 131 SNDRV_HWDEP_IOCTL_INFO = _IOR ('H', 0x01, struct snd_hwdep_info), 132 SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct snd_hwdep_dsp_status), 133 SNDRV_HWDEP_IOCTL_DSP_LOAD = _IOW('H', 0x03, struct snd_hwdep_dsp_image) 134 }; 135 136 /***************************************************************************** 137 * * 138 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 139 * * 140 *****************************************************************************/ 141 142 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) 143 144 typedef unsigned long snd_pcm_uframes_t; 145 typedef signed long snd_pcm_sframes_t; 146 147 enum { 148 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 149 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 150 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 151 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 152 /* Don't forget to change the following: */ 153 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 154 }; 155 156 enum { 157 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 158 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 159 /* Don't forget to change the following: */ 160 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 161 }; 162 163 enum { 164 SNDRV_PCM_STREAM_PLAYBACK = 0, 165 SNDRV_PCM_STREAM_CAPTURE, 166 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 167 }; 168 169 typedef int __bitwise snd_pcm_access_t; 170 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 171 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 172 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 173 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 174 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 175 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 176 177 typedef int __bitwise snd_pcm_format_t; 178 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 179 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 180 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 181 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 182 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 183 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 184 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 185 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 186 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 187 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 188 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 189 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 190 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 191 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 192 #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 */ 193 #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 */ 194 #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 */ 195 #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 */ 196 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 197 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 198 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 199 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 200 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 201 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 202 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 203 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 204 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 205 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 206 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 207 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 208 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 209 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 210 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 211 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 212 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 213 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 214 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 215 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 216 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_U18_3BE 217 218 #ifdef SNDRV_LITTLE_ENDIAN 219 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 220 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 221 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 222 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 223 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 224 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 225 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 226 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 227 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 228 #endif 229 #ifdef SNDRV_BIG_ENDIAN 230 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 231 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 232 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 233 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 234 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 235 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 236 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 237 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 238 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 239 #endif 240 241 typedef int __bitwise snd_pcm_subformat_t; 242 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 243 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 244 245 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 246 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 247 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 248 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 249 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 250 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 251 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 252 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 253 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 254 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 255 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 256 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 257 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 258 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 259 260 typedef int __bitwise snd_pcm_state_t; 261 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 262 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 263 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 264 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 265 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 266 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 267 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 268 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 269 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 270 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 271 272 enum { 273 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 274 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 275 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 276 }; 277 278 union snd_pcm_sync_id { 279 unsigned char id[16]; 280 unsigned short id16[8]; 281 unsigned int id32[4]; 282 }; 283 284 struct snd_pcm_info { 285 unsigned int device; /* RO/WR (control): device number */ 286 unsigned int subdevice; /* RO/WR (control): subdevice number */ 287 int stream; /* RO/WR (control): stream direction */ 288 int card; /* R: card number */ 289 unsigned char id[64]; /* ID (user selectable) */ 290 unsigned char name[80]; /* name of this device */ 291 unsigned char subname[32]; /* subdevice name */ 292 int dev_class; /* SNDRV_PCM_CLASS_* */ 293 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 294 unsigned int subdevices_count; 295 unsigned int subdevices_avail; 296 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 297 unsigned char reserved[64]; /* reserved for future... */ 298 }; 299 300 typedef int __bitwise snd_pcm_hw_param_t; 301 #define SNDRV_PCM_HW_PARAM_ACCESS ((__force snd_pcm_hw_param_t) 0) /* Access type */ 302 #define SNDRV_PCM_HW_PARAM_FORMAT ((__force snd_pcm_hw_param_t) 1) /* Format */ 303 #define SNDRV_PCM_HW_PARAM_SUBFORMAT ((__force snd_pcm_hw_param_t) 2) /* Subformat */ 304 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 305 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 306 307 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS ((__force snd_pcm_hw_param_t) 8) /* Bits per sample */ 308 #define SNDRV_PCM_HW_PARAM_FRAME_BITS ((__force snd_pcm_hw_param_t) 9) /* Bits per frame */ 309 #define SNDRV_PCM_HW_PARAM_CHANNELS ((__force snd_pcm_hw_param_t) 10) /* Channels */ 310 #define SNDRV_PCM_HW_PARAM_RATE ((__force snd_pcm_hw_param_t) 11) /* Approx rate */ 311 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME ((__force snd_pcm_hw_param_t) 12) /* Approx distance between interrupts in us */ 312 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE ((__force snd_pcm_hw_param_t) 13) /* Approx frames between interrupts */ 313 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES ((__force snd_pcm_hw_param_t) 14) /* Approx bytes between interrupts */ 314 #define SNDRV_PCM_HW_PARAM_PERIODS ((__force snd_pcm_hw_param_t) 15) /* Approx interrupts per buffer */ 315 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME ((__force snd_pcm_hw_param_t) 16) /* Approx duration of buffer in us */ 316 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE ((__force snd_pcm_hw_param_t) 17) /* Size of buffer in frames */ 317 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES ((__force snd_pcm_hw_param_t) 18) /* Size of buffer in bytes */ 318 #define SNDRV_PCM_HW_PARAM_TICK_TIME ((__force snd_pcm_hw_param_t) 19) /* Approx tick duration in us */ 319 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 320 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 321 322 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 323 324 struct snd_interval { 325 unsigned int min, max; 326 unsigned int openmin:1, 327 openmax:1, 328 integer:1, 329 empty:1; 330 }; 331 332 #define SNDRV_MASK_MAX 256 333 334 struct snd_mask { 335 u_int32_t bits[(SNDRV_MASK_MAX+31)/32]; 336 }; 337 338 struct snd_pcm_hw_params { 339 unsigned int flags; 340 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 341 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 342 struct snd_mask mres[5]; /* reserved masks */ 343 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 344 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 345 struct snd_interval ires[9]; /* reserved intervals */ 346 unsigned int rmask; /* W: requested masks */ 347 unsigned int cmask; /* R: changed masks */ 348 unsigned int info; /* R: Info flags for returned setup */ 349 unsigned int msbits; /* R: used most significant bits */ 350 unsigned int rate_num; /* R: rate numerator */ 351 unsigned int rate_den; /* R: rate denominator */ 352 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 353 unsigned char reserved[64]; /* reserved for future */ 354 }; 355 356 enum { 357 SNDRV_PCM_TSTAMP_NONE = 0, 358 SNDRV_PCM_TSTAMP_ENABLE, 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; /* obsolete: 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_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 440 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 441 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, 442 }; 443 444 enum { 445 SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int), 446 SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info), 447 SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int), 448 SNDRV_PCM_IOCTL_TTSTAMP = _IOW('A', 0x03, int), 449 SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params), 450 SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params), 451 SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12), 452 SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params), 453 SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct snd_pcm_status), 454 SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, snd_pcm_sframes_t), 455 SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22), 456 SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct snd_pcm_sync_ptr), 457 SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct snd_pcm_channel_info), 458 SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40), 459 SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41), 460 SNDRV_PCM_IOCTL_START = _IO('A', 0x42), 461 SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43), 462 SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44), 463 SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int), 464 SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t), 465 SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47), 466 SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48), 467 SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t), 468 SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi), 469 SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi), 470 SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct snd_xfern), 471 SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct snd_xfern), 472 SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int), 473 SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61), 474 }; 475 476 /* Trick to make alsa-lib/acinclude.m4 happy */ 477 #define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND 478 479 /***************************************************************************** 480 * * 481 * MIDI v1.0 interface * 482 * * 483 *****************************************************************************/ 484 485 /* 486 * Raw MIDI section - /dev/snd/midi?? 487 */ 488 489 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 490 491 enum { 492 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 493 SNDRV_RAWMIDI_STREAM_INPUT, 494 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 495 }; 496 497 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 498 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 499 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 500 501 struct snd_rawmidi_info { 502 unsigned int device; /* RO/WR (control): device number */ 503 unsigned int subdevice; /* RO/WR (control): subdevice number */ 504 int stream; /* WR: stream */ 505 int card; /* R: card number */ 506 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 507 unsigned char id[64]; /* ID (user selectable) */ 508 unsigned char name[80]; /* name of device */ 509 unsigned char subname[32]; /* name of active or selected subdevice */ 510 unsigned int subdevices_count; 511 unsigned int subdevices_avail; 512 unsigned char reserved[64]; /* reserved for future use */ 513 }; 514 515 struct snd_rawmidi_params { 516 int stream; 517 size_t buffer_size; /* queue size in bytes */ 518 size_t avail_min; /* minimum avail bytes for wakeup */ 519 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 520 unsigned char reserved[16]; /* reserved for future use */ 521 }; 522 523 struct snd_rawmidi_status { 524 int stream; 525 struct timespec tstamp; /* Timestamp */ 526 size_t avail; /* available bytes */ 527 size_t xruns; /* count of overruns since last status (in bytes) */ 528 unsigned char reserved[16]; /* reserved for future use */ 529 }; 530 531 enum { 532 SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int), 533 SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct snd_rawmidi_info), 534 SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct snd_rawmidi_params), 535 SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct snd_rawmidi_status), 536 SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int), 537 SNDRV_RAWMIDI_IOCTL_DRAIN = _IOW('W', 0x31, int), 538 }; 539 540 /* 541 * Timer section - /dev/snd/timer 542 */ 543 544 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 545 546 enum { 547 SNDRV_TIMER_CLASS_NONE = -1, 548 SNDRV_TIMER_CLASS_SLAVE = 0, 549 SNDRV_TIMER_CLASS_GLOBAL, 550 SNDRV_TIMER_CLASS_CARD, 551 SNDRV_TIMER_CLASS_PCM, 552 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 553 }; 554 555 /* slave timer classes */ 556 enum { 557 SNDRV_TIMER_SCLASS_NONE = 0, 558 SNDRV_TIMER_SCLASS_APPLICATION, 559 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 560 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 561 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 562 }; 563 564 /* global timers (device member) */ 565 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 566 #define SNDRV_TIMER_GLOBAL_RTC 1 567 #define SNDRV_TIMER_GLOBAL_HPET 2 568 569 /* info flags */ 570 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 571 572 struct snd_timer_id { 573 int dev_class; 574 int dev_sclass; 575 int card; 576 int device; 577 int subdevice; 578 }; 579 580 struct snd_timer_ginfo { 581 struct snd_timer_id tid; /* requested timer ID */ 582 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 583 int card; /* card number */ 584 unsigned char id[64]; /* timer identification */ 585 unsigned char name[80]; /* timer name */ 586 unsigned long reserved0; /* reserved for future use */ 587 unsigned long resolution; /* average period resolution in ns */ 588 unsigned long resolution_min; /* minimal period resolution in ns */ 589 unsigned long resolution_max; /* maximal period resolution in ns */ 590 unsigned int clients; /* active timer clients */ 591 unsigned char reserved[32]; 592 }; 593 594 struct snd_timer_gparams { 595 struct snd_timer_id tid; /* requested timer ID */ 596 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 597 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 598 unsigned char reserved[32]; 599 }; 600 601 struct snd_timer_gstatus { 602 struct snd_timer_id tid; /* requested timer ID */ 603 unsigned long resolution; /* current period resolution in ns */ 604 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 605 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 606 unsigned char reserved[32]; 607 }; 608 609 struct snd_timer_select { 610 struct snd_timer_id id; /* bind to timer ID */ 611 unsigned char reserved[32]; /* reserved */ 612 }; 613 614 struct snd_timer_info { 615 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 616 int card; /* card number */ 617 unsigned char id[64]; /* timer identificator */ 618 unsigned char name[80]; /* timer name */ 619 unsigned long reserved0; /* reserved for future use */ 620 unsigned long resolution; /* average period resolution in ns */ 621 unsigned char reserved[64]; /* reserved */ 622 }; 623 624 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 625 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 626 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 627 628 struct snd_timer_params { 629 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 630 unsigned int ticks; /* requested resolution in ticks */ 631 unsigned int queue_size; /* total size of queue (32-1024) */ 632 unsigned int reserved0; /* reserved, was: failure locations */ 633 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 634 unsigned char reserved[60]; /* reserved */ 635 }; 636 637 struct snd_timer_status { 638 struct timespec tstamp; /* Timestamp - last update */ 639 unsigned int resolution; /* current period resolution in ns */ 640 unsigned int lost; /* counter of master tick lost */ 641 unsigned int overrun; /* count of read queue overruns */ 642 unsigned int queue; /* used queue size */ 643 unsigned char reserved[64]; /* reserved */ 644 }; 645 646 enum { 647 SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int), 648 SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct snd_timer_id), 649 SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int), 650 SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct snd_timer_ginfo), 651 SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct snd_timer_gparams), 652 SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct snd_timer_gstatus), 653 SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct snd_timer_select), 654 SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct snd_timer_info), 655 SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct snd_timer_params), 656 SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct snd_timer_status), 657 /* The following four ioctls are changed since 1.0.9 due to confliction */ 658 SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0), 659 SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1), 660 SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2), 661 SNDRV_TIMER_IOCTL_PAUSE = _IO('T', 0xa3), 662 }; 663 664 struct snd_timer_read { 665 unsigned int resolution; 666 unsigned int ticks; 667 }; 668 669 enum { 670 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 671 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 672 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 673 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 674 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 675 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 676 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 677 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 678 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 679 /* master timer events for slave timer instances */ 680 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 681 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 682 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 683 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 684 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 685 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 686 }; 687 688 struct snd_timer_tread { 689 int event; 690 struct timespec tstamp; 691 unsigned int val; 692 }; 693 694 /**************************************************************************** 695 * * 696 * Section for driver control interface - /dev/snd/control? * 697 * * 698 ****************************************************************************/ 699 700 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) 701 702 struct snd_ctl_card_info { 703 int card; /* card number */ 704 int pad; /* reserved for future (was type) */ 705 unsigned char id[16]; /* ID of card (user selectable) */ 706 unsigned char driver[16]; /* Driver name */ 707 unsigned char name[32]; /* Short name of soundcard */ 708 unsigned char longname[80]; /* name + info text about soundcard */ 709 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 710 unsigned char mixername[80]; /* visual mixer identification */ 711 unsigned char components[80]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 712 unsigned char reserved[48]; /* reserved for future */ 713 }; 714 715 typedef int __bitwise snd_ctl_elem_type_t; 716 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 717 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 718 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 719 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 720 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 721 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 722 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 723 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 724 725 typedef int __bitwise snd_ctl_elem_iface_t; 726 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 727 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 728 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 729 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 730 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 731 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 732 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 733 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 734 735 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 736 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 737 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 738 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 739 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 740 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 741 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 742 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 743 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 744 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 745 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 746 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 747 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 748 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 749 /* bits 30 and 31 are obsoleted (for indirect access) */ 750 751 /* for further details see the ACPI and PCI power management specification */ 752 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 753 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 754 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 755 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 756 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 757 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 758 759 struct snd_ctl_elem_id { 760 unsigned int numid; /* numeric identifier, zero = invalid */ 761 snd_ctl_elem_iface_t iface; /* interface identifier */ 762 unsigned int device; /* device/client number */ 763 unsigned int subdevice; /* subdevice (substream) number */ 764 unsigned char name[44]; /* ASCII name of item */ 765 unsigned int index; /* index of item */ 766 }; 767 768 struct snd_ctl_elem_list { 769 unsigned int offset; /* W: first element ID to get */ 770 unsigned int space; /* W: count of element IDs to get */ 771 unsigned int used; /* R: count of element IDs set */ 772 unsigned int count; /* R: count of all elements */ 773 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 774 unsigned char reserved[50]; 775 }; 776 777 struct snd_ctl_elem_info { 778 struct snd_ctl_elem_id id; /* W: element ID */ 779 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 780 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 781 unsigned int count; /* count of values */ 782 pid_t owner; /* owner's PID of this control */ 783 union { 784 struct { 785 long min; /* R: minimum value */ 786 long max; /* R: maximum value */ 787 long step; /* R: step (0 variable) */ 788 } integer; 789 struct { 790 long long min; /* R: minimum value */ 791 long long max; /* R: maximum value */ 792 long long step; /* R: step (0 variable) */ 793 } integer64; 794 struct { 795 unsigned int items; /* R: number of items */ 796 unsigned int item; /* W: item number */ 797 char name[64]; /* R: value name */ 798 } enumerated; 799 unsigned char reserved[128]; 800 } value; 801 union { 802 unsigned short d[4]; /* dimensions */ 803 unsigned short *d_ptr; /* indirect - obsoleted */ 804 } dimen; 805 unsigned char reserved[64-4*sizeof(unsigned short)]; 806 }; 807 808 struct snd_ctl_elem_value { 809 struct snd_ctl_elem_id id; /* W: element ID */ 810 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 811 union { 812 union { 813 long value[128]; 814 long *value_ptr; /* obsoleted */ 815 } integer; 816 union { 817 long long value[64]; 818 long long *value_ptr; /* obsoleted */ 819 } integer64; 820 union { 821 unsigned int item[128]; 822 unsigned int *item_ptr; /* obsoleted */ 823 } enumerated; 824 union { 825 unsigned char data[512]; 826 unsigned char *data_ptr; /* obsoleted */ 827 } bytes; 828 struct snd_aes_iec958 iec958; 829 } value; /* RO */ 830 struct timespec tstamp; 831 unsigned char reserved[128-sizeof(struct timespec)]; 832 }; 833 834 struct snd_ctl_tlv { 835 unsigned int numid; /* control element numeric identification */ 836 unsigned int length; /* in bytes aligned to 4 */ 837 unsigned int tlv[0]; /* first TLV */ 838 }; 839 840 enum { 841 SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int), 842 SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct snd_ctl_card_info), 843 SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct snd_ctl_elem_list), 844 SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct snd_ctl_elem_info), 845 SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct snd_ctl_elem_value), 846 SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct snd_ctl_elem_value), 847 SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct snd_ctl_elem_id), 848 SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct snd_ctl_elem_id), 849 SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int), 850 SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct snd_ctl_elem_info), 851 SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct snd_ctl_elem_info), 852 SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct snd_ctl_elem_id), 853 SNDRV_CTL_IOCTL_TLV_READ = _IOWR('U', 0x1a, struct snd_ctl_tlv), 854 SNDRV_CTL_IOCTL_TLV_WRITE = _IOWR('U', 0x1b, struct snd_ctl_tlv), 855 SNDRV_CTL_IOCTL_TLV_COMMAND = _IOWR('U', 0x1c, struct snd_ctl_tlv), 856 SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int), 857 SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct snd_hwdep_info), 858 SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int), 859 SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct snd_pcm_info), 860 SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int), 861 SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int), 862 SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct snd_rawmidi_info), 863 SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int), 864 SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int), 865 SNDRV_CTL_IOCTL_POWER_STATE = _IOR('U', 0xd1, int), 866 }; 867 868 /* 869 * Read interface. 870 */ 871 872 enum sndrv_ctl_event_type { 873 SNDRV_CTL_EVENT_ELEM = 0, 874 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 875 }; 876 877 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 878 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 879 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 880 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 881 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 882 883 struct snd_ctl_event { 884 int type; /* event type - SNDRV_CTL_EVENT_* */ 885 union { 886 struct { 887 unsigned int mask; 888 struct snd_ctl_elem_id id; 889 } elem; 890 unsigned char data8[60]; 891 } data; 892 }; 893 894 /* 895 * Control names 896 */ 897 898 #define SNDRV_CTL_NAME_NONE "" 899 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 900 #define SNDRV_CTL_NAME_CAPTURE "Capture " 901 902 #define SNDRV_CTL_NAME_IEC958_NONE "" 903 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 904 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 905 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 906 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 907 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 908 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 909 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 910 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 911 912 /* 913 * 914 */ 915 916 struct snd_xferv { 917 const struct iovec *vector; 918 unsigned long count; 919 }; 920 921 enum { 922 SNDRV_IOCTL_READV = _IOW('K', 0x00, struct snd_xferv), 923 SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct snd_xferv), 924 }; 925 926 #endif /* __SOUND_ASOUND_H */ 927