1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * Advanced Linux Sound Architecture - ALSA - Driver 4 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>, 5 * Abramo Bagnara <abramo@alsa-project.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #ifndef __SOUND_ASOUND_H 25 #define __SOUND_ASOUND_H 26 27 #if defined(__KERNEL__) || defined(__linux__) 28 #include <linux/types.h> 29 #else 30 #include <sys/ioctl.h> 31 #endif 32 33 #include <stdlib.h> 34 #include <time.h> 35 36 /* 37 * protocol version 38 */ 39 40 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 41 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 42 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 43 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 44 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 45 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 46 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 47 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 48 49 /**************************************************************************** 50 * * 51 * Digital audio interface * 52 * * 53 ****************************************************************************/ 54 55 struct snd_aes_iec958 { 56 unsigned char status[24]; /* AES/IEC958 channel status bits */ 57 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 58 unsigned char pad; /* nothing */ 59 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 60 }; 61 62 /**************************************************************************** 63 * * 64 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 65 * * 66 ****************************************************************************/ 67 68 struct snd_cea_861_aud_if { 69 unsigned char db1_ct_cc; /* coding type and channel count */ 70 unsigned char db2_sf_ss; /* sample frequency and size */ 71 unsigned char db3; /* not used, all zeros */ 72 unsigned char db4_ca; /* channel allocation code */ 73 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 74 }; 75 76 /**************************************************************************** 77 * * 78 * Section for driver hardware dependent interface - /dev/snd/hw? * 79 * * 80 ****************************************************************************/ 81 82 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 83 84 enum { 85 SNDRV_HWDEP_IFACE_OPL2 = 0, 86 SNDRV_HWDEP_IFACE_OPL3, 87 SNDRV_HWDEP_IFACE_OPL4, 88 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 89 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 90 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 91 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 92 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 93 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 94 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 95 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 96 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 97 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 98 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 99 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 100 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 101 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 102 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 103 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 104 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 105 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 106 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 107 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 108 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 109 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 110 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 111 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 112 SNDRV_HWDEP_IFACE_AUDIO_BE, /* Backend Audio Control */ 113 SNDRV_HWDEP_IFACE_AUDIO_CODEC, /* codec Audio Control */ 114 115 /* Don't forget to change the following: */ 116 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_AUDIO_CODEC 117 }; 118 119 #define SNDRV_HWDEP_IFACE_AUDIO_BE SNDRV_HWDEP_IFACE_AUDIO_BE 120 #define SNDRV_HWDEP_IFACE_AUDIO_CODEC SNDRV_HWDEP_IFACE_AUDIO_CODEC 121 122 struct snd_hwdep_info { 123 unsigned int device; /* WR: device number */ 124 int card; /* R: card number */ 125 unsigned char id[64]; /* ID (user selectable) */ 126 unsigned char name[80]; /* hwdep name */ 127 int iface; /* hwdep interface */ 128 unsigned char reserved[64]; /* reserved for future */ 129 }; 130 131 /* generic DSP loader */ 132 struct snd_hwdep_dsp_status { 133 unsigned int version; /* R: driver-specific version */ 134 unsigned char id[32]; /* R: driver-specific ID string */ 135 unsigned int num_dsps; /* R: number of DSP images to transfer */ 136 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 137 unsigned int chip_ready; /* R: 1 = initialization finished */ 138 unsigned char reserved[16]; /* reserved for future use */ 139 }; 140 141 struct snd_hwdep_dsp_image { 142 unsigned int index; /* W: DSP index */ 143 unsigned char name[64]; /* W: ID (e.g. file name) */ 144 unsigned char *image; /* W: binary image */ 145 size_t length; /* W: size of image in bytes */ 146 unsigned long driver_data; /* W: driver-specific data */ 147 }; 148 149 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 150 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 151 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 152 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 153 154 /***************************************************************************** 155 * * 156 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 157 * * 158 *****************************************************************************/ 159 160 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 14) 161 162 typedef unsigned long snd_pcm_uframes_t; 163 typedef signed long snd_pcm_sframes_t; 164 165 enum { 166 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 167 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 168 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 169 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 170 /* Don't forget to change the following: */ 171 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 172 }; 173 174 enum { 175 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 176 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 177 /* Don't forget to change the following: */ 178 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 179 }; 180 181 enum { 182 SNDRV_PCM_STREAM_PLAYBACK = 0, 183 SNDRV_PCM_STREAM_CAPTURE, 184 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 185 }; 186 187 typedef int __bitwise snd_pcm_access_t; 188 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */ 189 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */ 190 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */ 191 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */ 192 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */ 193 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 194 195 typedef int __bitwise snd_pcm_format_t; 196 #define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0) 197 #define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1) 198 #define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2) 199 #define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3) 200 #define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4) 201 #define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5) 202 #define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */ 203 #define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */ 204 #define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */ 205 #define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */ 206 #define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10) 207 #define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11) 208 #define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12) 209 #define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13) 210 #define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 211 #define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 212 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 213 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 214 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 215 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 216 #define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20) 217 #define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21) 218 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22) 219 #define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23) 220 #define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24) 221 #define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31) 222 #define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */ 223 #define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */ 224 #define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */ 225 #define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */ 226 #define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */ 227 #define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */ 228 #define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */ 229 #define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */ 230 #define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */ 231 #define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */ 232 #define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */ 233 #define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */ 234 #define SNDRV_PCM_FORMAT_G723_24 ((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 235 #define SNDRV_PCM_FORMAT_G723_24_1B ((snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 236 #define SNDRV_PCM_FORMAT_G723_40 ((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 237 #define SNDRV_PCM_FORMAT_G723_40_1B ((snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 238 #define SNDRV_PCM_FORMAT_DSD_U8 ((snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 239 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 240 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 241 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 242 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 243 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 244 245 #ifdef SNDRV_LITTLE_ENDIAN 246 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 247 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 248 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 249 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 250 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 251 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 252 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 253 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 254 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 255 #endif 256 #ifdef SNDRV_BIG_ENDIAN 257 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 258 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 259 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 260 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 261 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 262 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 263 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 264 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 265 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 266 #endif 267 268 typedef int __bitwise snd_pcm_subformat_t; 269 #define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0) 270 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 271 272 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 273 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 274 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 275 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 276 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 277 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 278 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 279 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 280 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 281 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 282 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 283 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 284 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 285 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 286 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 287 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 288 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 289 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 290 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 291 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 292 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 293 294 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 295 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 296 297 298 299 typedef int __bitwise snd_pcm_state_t; 300 #define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */ 301 #define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */ 302 #define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */ 303 #define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */ 304 #define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */ 305 #define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */ 306 #define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */ 307 #define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */ 308 #define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */ 309 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 310 311 enum { 312 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 313 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 314 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 315 }; 316 317 union snd_pcm_sync_id { 318 unsigned char id[16]; 319 unsigned short id16[8]; 320 unsigned int id32[4]; 321 }; 322 323 struct snd_pcm_info { 324 unsigned int device; /* RO/WR (control): device number */ 325 unsigned int subdevice; /* RO/WR (control): subdevice number */ 326 int stream; /* RO/WR (control): stream direction */ 327 int card; /* R: card number */ 328 unsigned char id[64]; /* ID (user selectable) */ 329 unsigned char name[80]; /* name of this device */ 330 unsigned char subname[32]; /* subdevice name */ 331 int dev_class; /* SNDRV_PCM_CLASS_* */ 332 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 333 unsigned int subdevices_count; 334 unsigned int subdevices_avail; 335 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 336 unsigned char reserved[64]; /* reserved for future... */ 337 }; 338 339 typedef int snd_pcm_hw_param_t; 340 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 341 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 342 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 343 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 344 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 345 346 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 347 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 348 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 349 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 350 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 351 * interrupts in us 352 */ 353 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 354 * interrupts 355 */ 356 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 357 * interrupts 358 */ 359 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 360 * buffer 361 */ 362 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 363 * in us 364 */ 365 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 366 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 367 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 368 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 369 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 370 371 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 372 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 373 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 374 375 struct snd_interval { 376 unsigned int min, max; 377 unsigned int openmin:1, 378 openmax:1, 379 integer:1, 380 empty:1; 381 }; 382 383 #define SNDRV_MASK_MAX 256 384 385 struct snd_mask { 386 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 387 }; 388 389 struct snd_pcm_hw_params { 390 unsigned int flags; 391 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 392 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 393 struct snd_mask mres[5]; /* reserved masks */ 394 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 395 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 396 struct snd_interval ires[9]; /* reserved intervals */ 397 unsigned int rmask; /* W: requested masks */ 398 unsigned int cmask; /* R: changed masks */ 399 unsigned int info; /* R: Info flags for returned setup */ 400 unsigned int msbits; /* R: used most significant bits */ 401 unsigned int rate_num; /* R: rate numerator */ 402 unsigned int rate_den; /* R: rate denominator */ 403 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 404 unsigned char reserved[64]; /* reserved for future */ 405 }; 406 407 enum { 408 SNDRV_PCM_TSTAMP_NONE = 0, 409 SNDRV_PCM_TSTAMP_ENABLE, 410 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 411 }; 412 413 struct snd_pcm_sw_params { 414 int tstamp_mode; /* timestamp mode */ 415 unsigned int period_step; 416 unsigned int sleep_min; /* min ticks to sleep */ 417 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 418 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 419 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 420 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 421 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 422 snd_pcm_uframes_t silence_size; /* silence block size */ 423 snd_pcm_uframes_t boundary; /* pointers wrap point */ 424 unsigned int proto; /* protocol version */ 425 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 426 unsigned char reserved[56]; /* reserved for future */ 427 }; 428 429 struct snd_pcm_channel_info { 430 unsigned int channel; 431 __kernel_off_t offset; /* mmap offset */ 432 unsigned int first; /* offset to first sample in bits */ 433 unsigned int step; /* samples distance in bits */ 434 }; 435 436 enum { 437 /* 438 * first definition for backwards compatibility only, 439 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 440 */ 441 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 442 443 /* timestamp definitions */ 444 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 445 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 446 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 447 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 448 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 449 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 450 }; 451 452 struct snd_pcm_status { 453 snd_pcm_state_t state; /* stream state */ 454 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 455 struct timespec tstamp; /* reference timestamp */ 456 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 457 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 458 snd_pcm_sframes_t delay; /* current delay in frames */ 459 snd_pcm_uframes_t avail; /* number of frames available */ 460 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 461 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 462 snd_pcm_state_t suspended_state; /* suspended stream state */ 463 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 464 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 465 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 466 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 467 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 468 }; 469 470 struct snd_pcm_mmap_status { 471 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 472 int pad1; /* Needed for 64 bit alignment */ 473 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 474 struct timespec tstamp; /* Timestamp */ 475 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 476 struct timespec audio_tstamp; /* from sample counter or wall clock */ 477 }; 478 479 struct snd_pcm_mmap_control { 480 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 481 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 482 }; 483 484 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 485 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 486 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 487 488 struct snd_pcm_sync_ptr { 489 unsigned int flags; 490 union { 491 struct snd_pcm_mmap_status status; 492 unsigned char reserved[64]; 493 } s; 494 union { 495 struct snd_pcm_mmap_control control; 496 unsigned char reserved[64]; 497 } c; 498 }; 499 500 struct snd_xferi { 501 snd_pcm_sframes_t result; 502 void *buf; 503 snd_pcm_uframes_t frames; 504 }; 505 506 struct snd_xfern { 507 snd_pcm_sframes_t result; 508 void * *bufs; 509 snd_pcm_uframes_t frames; 510 }; 511 512 enum { 513 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 514 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 515 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 516 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 517 }; 518 519 /* channel positions */ 520 enum { 521 SNDRV_CHMAP_UNKNOWN = 0, 522 SNDRV_CHMAP_NA, /* N/A, silent */ 523 SNDRV_CHMAP_MONO, /* mono stream */ 524 /* this follows the alsa-lib mixer channel value + 3 */ 525 SNDRV_CHMAP_FL, /* front left */ 526 SNDRV_CHMAP_FR, /* front right */ 527 SNDRV_CHMAP_RL, /* rear left */ 528 SNDRV_CHMAP_RR, /* rear right */ 529 SNDRV_CHMAP_FC, /* front center */ 530 SNDRV_CHMAP_LFE, /* LFE */ 531 SNDRV_CHMAP_SL, /* side left */ 532 SNDRV_CHMAP_SR, /* side right */ 533 SNDRV_CHMAP_RC, /* rear center */ 534 /* new definitions */ 535 SNDRV_CHMAP_FLC, /* front left center */ 536 SNDRV_CHMAP_FRC, /* front right center */ 537 SNDRV_CHMAP_RLC, /* rear left center */ 538 SNDRV_CHMAP_RRC, /* rear right center */ 539 SNDRV_CHMAP_FLW, /* front left wide */ 540 SNDRV_CHMAP_FRW, /* front right wide */ 541 SNDRV_CHMAP_FLH, /* front left high */ 542 SNDRV_CHMAP_FCH, /* front center high */ 543 SNDRV_CHMAP_FRH, /* front right high */ 544 SNDRV_CHMAP_TC, /* top center */ 545 SNDRV_CHMAP_TFL, /* top front left */ 546 SNDRV_CHMAP_TFR, /* top front right */ 547 SNDRV_CHMAP_TFC, /* top front center */ 548 SNDRV_CHMAP_TRL, /* top rear left */ 549 SNDRV_CHMAP_TRR, /* top rear right */ 550 SNDRV_CHMAP_TRC, /* top rear center */ 551 /* new definitions for UAC2 */ 552 SNDRV_CHMAP_TFLC, /* top front left center */ 553 SNDRV_CHMAP_TFRC, /* top front right center */ 554 SNDRV_CHMAP_TSL, /* top side left */ 555 SNDRV_CHMAP_TSR, /* top side right */ 556 SNDRV_CHMAP_LLFE, /* left LFE */ 557 SNDRV_CHMAP_RLFE, /* right LFE */ 558 SNDRV_CHMAP_BC, /* bottom center */ 559 SNDRV_CHMAP_BLC, /* bottom left center */ 560 SNDRV_CHMAP_BRC, /* bottom right center */ 561 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 562 }; 563 564 #define SNDRV_CHMAP_POSITION_MASK 0xffff 565 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 566 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 567 568 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 569 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 570 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 571 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 572 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 573 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 574 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 575 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 576 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 577 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 578 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 579 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 580 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 581 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 582 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 583 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 584 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 585 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 586 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 587 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 588 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 589 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 590 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 591 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 592 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 593 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 594 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 595 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 596 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 597 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 598 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 599 600 /***************************************************************************** 601 * * 602 * MIDI v1.0 interface * 603 * * 604 *****************************************************************************/ 605 606 /* 607 * Raw MIDI section - /dev/snd/midi?? 608 */ 609 610 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 611 612 enum { 613 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 614 SNDRV_RAWMIDI_STREAM_INPUT, 615 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 616 }; 617 618 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 619 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 620 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 621 622 struct snd_rawmidi_info { 623 unsigned int device; /* RO/WR (control): device number */ 624 unsigned int subdevice; /* RO/WR (control): subdevice number */ 625 int stream; /* WR: stream */ 626 int card; /* R: card number */ 627 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 628 unsigned char id[64]; /* ID (user selectable) */ 629 unsigned char name[80]; /* name of device */ 630 unsigned char subname[32]; /* name of active or selected subdevice */ 631 unsigned int subdevices_count; 632 unsigned int subdevices_avail; 633 unsigned char reserved[64]; /* reserved for future use */ 634 }; 635 636 struct snd_rawmidi_params { 637 int stream; 638 size_t buffer_size; /* queue size in bytes */ 639 size_t avail_min; /* minimum avail bytes for wakeup */ 640 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 641 unsigned char reserved[16]; /* reserved for future use */ 642 }; 643 644 struct snd_rawmidi_status { 645 int stream; 646 struct timespec tstamp; /* Timestamp */ 647 size_t avail; /* available bytes */ 648 size_t xruns; /* count of overruns since last status (in bytes) */ 649 unsigned char reserved[16]; /* reserved for future use */ 650 }; 651 652 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 653 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 654 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 655 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 656 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 657 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 658 659 /* 660 * Timer section - /dev/snd/timer 661 */ 662 663 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 664 665 enum { 666 SNDRV_TIMER_CLASS_NONE = -1, 667 SNDRV_TIMER_CLASS_SLAVE = 0, 668 SNDRV_TIMER_CLASS_GLOBAL, 669 SNDRV_TIMER_CLASS_CARD, 670 SNDRV_TIMER_CLASS_PCM, 671 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 672 }; 673 674 /* slave timer classes */ 675 enum { 676 SNDRV_TIMER_SCLASS_NONE = 0, 677 SNDRV_TIMER_SCLASS_APPLICATION, 678 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 679 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 680 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 681 }; 682 683 /* global timers (device member) */ 684 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 685 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 686 #define SNDRV_TIMER_GLOBAL_HPET 2 687 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 688 689 /* info flags */ 690 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 691 692 struct snd_timer_id { 693 int dev_class; 694 int dev_sclass; 695 int card; 696 int device; 697 int subdevice; 698 }; 699 700 struct snd_timer_ginfo { 701 struct snd_timer_id tid; /* requested timer ID */ 702 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 703 int card; /* card number */ 704 unsigned char id[64]; /* timer identification */ 705 unsigned char name[80]; /* timer name */ 706 unsigned long reserved0; /* reserved for future use */ 707 unsigned long resolution; /* average period resolution in ns */ 708 unsigned long resolution_min; /* minimal period resolution in ns */ 709 unsigned long resolution_max; /* maximal period resolution in ns */ 710 unsigned int clients; /* active timer clients */ 711 unsigned char reserved[32]; 712 }; 713 714 struct snd_timer_gparams { 715 struct snd_timer_id tid; /* requested timer ID */ 716 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 717 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 718 unsigned char reserved[32]; 719 }; 720 721 struct snd_timer_gstatus { 722 struct snd_timer_id tid; /* requested timer ID */ 723 unsigned long resolution; /* current period resolution in ns */ 724 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 725 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 726 unsigned char reserved[32]; 727 }; 728 729 struct snd_timer_select { 730 struct snd_timer_id id; /* bind to timer ID */ 731 unsigned char reserved[32]; /* reserved */ 732 }; 733 734 struct snd_timer_info { 735 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 736 int card; /* card number */ 737 unsigned char id[64]; /* timer identificator */ 738 unsigned char name[80]; /* timer name */ 739 unsigned long reserved0; /* reserved for future use */ 740 unsigned long resolution; /* average period resolution in ns */ 741 unsigned char reserved[64]; /* reserved */ 742 }; 743 744 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 745 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 746 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 747 748 struct snd_timer_params { 749 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 750 unsigned int ticks; /* requested resolution in ticks */ 751 unsigned int queue_size; /* total size of queue (32-1024) */ 752 unsigned int reserved0; /* reserved, was: failure locations */ 753 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 754 unsigned char reserved[60]; /* reserved */ 755 }; 756 757 struct snd_timer_status { 758 struct timespec tstamp; /* Timestamp - last update */ 759 unsigned int resolution; /* current period resolution in ns */ 760 unsigned int lost; /* counter of master tick lost */ 761 unsigned int overrun; /* count of read queue overruns */ 762 unsigned int queue; /* used queue size */ 763 unsigned char reserved[64]; /* reserved */ 764 }; 765 766 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 767 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 768 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) 769 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 770 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 771 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 772 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 773 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 774 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 775 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 776 /* The following four ioctls are changed since 1.0.9 due to confliction */ 777 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 778 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 779 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 780 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 781 782 struct snd_timer_read { 783 unsigned int resolution; 784 unsigned int ticks; 785 }; 786 787 enum { 788 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 789 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 790 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 791 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 792 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 793 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 794 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 795 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 796 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 797 /* master timer events for slave timer instances */ 798 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 799 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 800 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 801 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 802 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 803 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 804 }; 805 806 struct snd_timer_tread { 807 int event; 808 struct timespec tstamp; 809 unsigned int val; 810 }; 811 812 /**************************************************************************** 813 * * 814 * Section for driver control interface - /dev/snd/control? * 815 * * 816 ****************************************************************************/ 817 818 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 819 820 struct snd_ctl_card_info { 821 int card; /* card number */ 822 int pad; /* reserved for future (was type) */ 823 unsigned char id[16]; /* ID of card (user selectable) */ 824 unsigned char driver[16]; /* Driver name */ 825 unsigned char name[32]; /* Short name of soundcard */ 826 unsigned char longname[80]; /* name + info text about soundcard */ 827 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 828 unsigned char mixername[80]; /* visual mixer identification */ 829 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 830 }; 831 832 typedef int __bitwise snd_ctl_elem_type_t; 833 #define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */ 834 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */ 835 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */ 836 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */ 837 #define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */ 838 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 839 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 840 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 841 842 typedef int __bitwise snd_ctl_elem_iface_t; 843 #define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */ 844 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 845 #define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 846 #define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */ 847 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */ 848 #define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */ 849 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */ 850 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 851 852 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 853 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 854 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 855 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 856 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 857 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 858 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 859 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 860 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 861 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 862 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 863 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 864 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 865 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 866 /* bits 30 and 31 are obsoleted (for indirect access) */ 867 868 /* for further details see the ACPI and PCI power management specification */ 869 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 870 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 871 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 872 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 873 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 874 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 875 876 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 877 878 struct snd_ctl_elem_id { 879 unsigned int numid; /* numeric identifier, zero = invalid */ 880 snd_ctl_elem_iface_t iface; /* interface identifier */ 881 unsigned int device; /* device/client number */ 882 unsigned int subdevice; /* subdevice (substream) number */ 883 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 884 unsigned int index; /* index of item */ 885 }; 886 887 struct snd_ctl_elem_list { 888 unsigned int offset; /* W: first element ID to get */ 889 unsigned int space; /* W: count of element IDs to get */ 890 unsigned int used; /* R: count of element IDs set */ 891 unsigned int count; /* R: count of all elements */ 892 struct snd_ctl_elem_id *pids; /* R: IDs */ 893 unsigned char reserved[50]; 894 }; 895 896 struct snd_ctl_elem_info { 897 struct snd_ctl_elem_id id; /* W: element ID */ 898 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 899 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 900 unsigned int count; /* count of values */ 901 __kernel_pid_t owner; /* owner's PID of this control */ 902 union { 903 struct { 904 long min; /* R: minimum value */ 905 long max; /* R: maximum value */ 906 long step; /* R: step (0 variable) */ 907 } integer; 908 struct { 909 long long min; /* R: minimum value */ 910 long long max; /* R: maximum value */ 911 long long step; /* R: step (0 variable) */ 912 } integer64; 913 struct { 914 unsigned int items; /* R: number of items */ 915 unsigned int item; /* W: item number */ 916 char name[64]; /* R: value name */ 917 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 918 unsigned int names_length; 919 } enumerated; 920 unsigned char reserved[128]; 921 } value; 922 union { 923 unsigned short d[4]; /* dimensions */ 924 unsigned short *d_ptr; /* indirect - obsoleted */ 925 } dimen; 926 unsigned char reserved[64-4*sizeof(unsigned short)]; 927 }; 928 929 struct snd_ctl_elem_value { 930 struct snd_ctl_elem_id id; /* W: element ID */ 931 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 932 union { 933 union { 934 long value[128]; 935 long *value_ptr; /* obsoleted */ 936 } integer; 937 union { 938 long long value[64]; 939 long long *value_ptr; /* obsoleted */ 940 } integer64; 941 union { 942 unsigned int item[128]; 943 unsigned int *item_ptr; /* obsoleted */ 944 } enumerated; 945 union { 946 unsigned char data[512]; 947 unsigned char *data_ptr; /* obsoleted */ 948 } bytes; 949 struct snd_aes_iec958 iec958; 950 } value; /* RO */ 951 struct timespec tstamp; 952 unsigned char reserved[128-sizeof(struct timespec)]; 953 }; 954 955 struct snd_ctl_tlv { 956 unsigned int numid; /* control element numeric identification */ 957 unsigned int length; /* in bytes aligned to 4 */ 958 unsigned int tlv[0]; /* first TLV */ 959 }; 960 961 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 962 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 963 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 964 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 965 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 966 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 967 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 968 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 969 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 970 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 971 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 972 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 973 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 974 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 975 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 976 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 977 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 978 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 979 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 980 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 981 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 982 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 983 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 984 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 985 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 986 987 /* 988 * Read interface. 989 */ 990 991 enum sndrv_ctl_event_type { 992 SNDRV_CTL_EVENT_ELEM = 0, 993 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 994 }; 995 996 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 997 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 998 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 999 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1000 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1001 1002 struct snd_ctl_event { 1003 int type; /* event type - SNDRV_CTL_EVENT_* */ 1004 union { 1005 struct { 1006 unsigned int mask; 1007 struct snd_ctl_elem_id id; 1008 } elem; 1009 unsigned char data8[60]; 1010 } data; 1011 }; 1012 1013 /* 1014 * Control names 1015 */ 1016 1017 #define SNDRV_CTL_NAME_NONE "" 1018 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1019 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1020 1021 #define SNDRV_CTL_NAME_IEC958_NONE "" 1022 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1023 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1024 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1025 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1026 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1027 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1028 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1029 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1030 1031 #endif /* __SOUND_ASOUND_H */ 1032