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 #include <asm/byteorder.h> 30 #else 31 #include <endian.h> 32 #include <sys/ioctl.h> 33 #endif 34 35 #include <stdlib.h> 36 #include <time.h> 37 38 /* 39 * protocol version 40 */ 41 42 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 43 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 44 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 45 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 46 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 47 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 48 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 49 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 50 51 /**************************************************************************** 52 * * 53 * Digital audio interface * 54 * * 55 ****************************************************************************/ 56 57 struct snd_aes_iec958 { 58 unsigned char status[24]; /* AES/IEC958 channel status bits */ 59 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 60 unsigned char pad; /* nothing */ 61 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 62 }; 63 64 /**************************************************************************** 65 * * 66 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 67 * * 68 ****************************************************************************/ 69 70 struct snd_cea_861_aud_if { 71 unsigned char db1_ct_cc; /* coding type and channel count */ 72 unsigned char db2_sf_ss; /* sample frequency and size */ 73 unsigned char db3; /* not used, all zeros */ 74 unsigned char db4_ca; /* channel allocation code */ 75 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 76 }; 77 78 /**************************************************************************** 79 * * 80 * Section for driver hardware dependent interface - /dev/snd/hw? * 81 * * 82 ****************************************************************************/ 83 84 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 85 86 enum { 87 SNDRV_HWDEP_IFACE_OPL2 = 0, 88 SNDRV_HWDEP_IFACE_OPL3, 89 SNDRV_HWDEP_IFACE_OPL4, 90 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 91 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 92 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 93 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 94 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 95 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 96 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 97 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 98 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 99 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 100 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 101 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 102 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 103 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 104 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 105 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 106 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 107 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 108 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 109 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 110 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 111 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 112 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 113 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 114 115 /* Don't forget to change the following: */ 116 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE 117 }; 118 119 struct snd_hwdep_info { 120 unsigned int device; /* WR: device number */ 121 int card; /* R: card number */ 122 unsigned char id[64]; /* ID (user selectable) */ 123 unsigned char name[80]; /* hwdep name */ 124 int iface; /* hwdep interface */ 125 unsigned char reserved[64]; /* reserved for future */ 126 }; 127 128 /* generic DSP loader */ 129 struct snd_hwdep_dsp_status { 130 unsigned int version; /* R: driver-specific version */ 131 unsigned char id[32]; /* R: driver-specific ID string */ 132 unsigned int num_dsps; /* R: number of DSP images to transfer */ 133 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 134 unsigned int chip_ready; /* R: 1 = initialization finished */ 135 unsigned char reserved[16]; /* reserved for future use */ 136 }; 137 138 struct snd_hwdep_dsp_image { 139 unsigned int index; /* W: DSP index */ 140 unsigned char name[64]; /* W: ID (e.g. file name) */ 141 unsigned char *image; /* W: binary image */ 142 size_t length; /* W: size of image in bytes */ 143 unsigned long driver_data; /* W: driver-specific data */ 144 }; 145 146 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 147 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 148 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 149 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 150 151 /***************************************************************************** 152 * * 153 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 154 * * 155 *****************************************************************************/ 156 157 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15) 158 159 typedef unsigned long snd_pcm_uframes_t; 160 typedef signed long snd_pcm_sframes_t; 161 162 enum { 163 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 164 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 165 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 166 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 167 /* Don't forget to change the following: */ 168 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 169 }; 170 171 enum { 172 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 173 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 174 /* Don't forget to change the following: */ 175 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 176 }; 177 178 enum { 179 SNDRV_PCM_STREAM_PLAYBACK = 0, 180 SNDRV_PCM_STREAM_CAPTURE, 181 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 182 }; 183 184 typedef int __bitwise snd_pcm_access_t; 185 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */ 186 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */ 187 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */ 188 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */ 189 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */ 190 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 191 192 typedef int __bitwise snd_pcm_format_t; 193 #define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0) 194 #define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1) 195 #define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2) 196 #define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3) 197 #define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4) 198 #define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5) 199 #define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */ 200 #define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */ 201 #define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */ 202 #define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */ 203 #define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10) 204 #define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11) 205 #define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12) 206 #define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13) 207 #define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 208 #define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 209 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 210 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 211 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 212 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 213 #define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20) 214 #define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21) 215 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22) 216 #define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23) 217 #define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24) 218 #define SNDRV_PCM_FORMAT_S20_LE ((snd_pcm_format_t) 25) /* in four bytes, LSB justified */ 219 #define SNDRV_PCM_FORMAT_S20_BE ((snd_pcm_format_t) 26) /* in four bytes, LSB justified */ 220 #define SNDRV_PCM_FORMAT_U20_LE ((snd_pcm_format_t) 27) /* in four bytes, LSB justified */ 221 #define SNDRV_PCM_FORMAT_U20_BE ((snd_pcm_format_t) 28) /* in four bytes, LSB justified */ 222 /* gap in the numbering for a future standard linear format */ 223 #define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31) 224 #define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */ 225 #define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */ 226 #define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */ 227 #define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */ 228 #define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */ 229 #define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */ 230 #define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */ 231 #define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */ 232 #define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */ 233 #define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */ 234 #define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */ 235 #define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */ 236 #define SNDRV_PCM_FORMAT_G723_24 ((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 237 #define SNDRV_PCM_FORMAT_G723_24_1B ((snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 238 #define SNDRV_PCM_FORMAT_G723_40 ((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 239 #define SNDRV_PCM_FORMAT_G723_40_1B ((snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 240 #define SNDRV_PCM_FORMAT_DSD_U8 ((snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 241 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 242 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 243 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 244 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 245 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 246 #define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8 247 248 #ifdef SNDRV_LITTLE_ENDIAN 249 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 250 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 251 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 252 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 253 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 254 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 255 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 256 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 257 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 258 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE 259 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE 260 #endif 261 #ifdef SNDRV_BIG_ENDIAN 262 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 263 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 264 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 265 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 266 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 267 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 268 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 269 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 270 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 271 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE 272 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE 273 #endif 274 275 typedef int __bitwise snd_pcm_subformat_t; 276 #define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0) 277 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 278 279 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 280 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 281 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 282 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 283 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 284 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 285 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 286 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 287 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 288 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 289 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 290 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 291 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 292 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 293 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 294 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 295 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 296 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 297 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 298 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 299 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 300 #define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */ 301 302 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 303 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 304 305 #if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__ 306 #define __SND_STRUCT_TIME64 307 #endif 308 309 typedef int __bitwise snd_pcm_state_t; 310 #define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */ 311 #define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */ 312 #define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */ 313 #define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */ 314 #define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */ 315 #define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */ 316 #define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */ 317 #define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */ 318 #define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */ 319 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 320 321 enum { 322 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 323 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000, 324 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000, 325 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000, 326 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000, 327 #ifdef __SND_STRUCT_TIME64 328 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW, 329 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW, 330 #else 331 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD, 332 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD, 333 #endif 334 }; 335 336 union snd_pcm_sync_id { 337 unsigned char id[16]; 338 unsigned short id16[8]; 339 unsigned int id32[4]; 340 }; 341 342 struct snd_pcm_info { 343 unsigned int device; /* RO/WR (control): device number */ 344 unsigned int subdevice; /* RO/WR (control): subdevice number */ 345 int stream; /* RO/WR (control): stream direction */ 346 int card; /* R: card number */ 347 unsigned char id[64]; /* ID (user selectable) */ 348 unsigned char name[80]; /* name of this device */ 349 unsigned char subname[32]; /* subdevice name */ 350 int dev_class; /* SNDRV_PCM_CLASS_* */ 351 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 352 unsigned int subdevices_count; 353 unsigned int subdevices_avail; 354 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 355 unsigned char reserved[64]; /* reserved for future... */ 356 }; 357 358 typedef int snd_pcm_hw_param_t; 359 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 360 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 361 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 362 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 363 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 364 365 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 366 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 367 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 368 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 369 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 370 * interrupts in us 371 */ 372 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 373 * interrupts 374 */ 375 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 376 * interrupts 377 */ 378 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 379 * buffer 380 */ 381 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 382 * in us 383 */ 384 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 385 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 386 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 387 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 388 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 389 390 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 391 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 392 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 393 394 struct snd_interval { 395 unsigned int min, max; 396 unsigned int openmin:1, 397 openmax:1, 398 integer:1, 399 empty:1; 400 }; 401 402 #define SNDRV_MASK_MAX 256 403 404 struct snd_mask { 405 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 406 }; 407 408 struct snd_pcm_hw_params { 409 unsigned int flags; 410 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 411 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 412 struct snd_mask mres[5]; /* reserved masks */ 413 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 414 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 415 struct snd_interval ires[9]; /* reserved intervals */ 416 unsigned int rmask; /* W: requested masks */ 417 unsigned int cmask; /* R: changed masks */ 418 unsigned int info; /* R: Info flags for returned setup */ 419 unsigned int msbits; /* R: used most significant bits */ 420 unsigned int rate_num; /* R: rate numerator */ 421 unsigned int rate_den; /* R: rate denominator */ 422 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 423 unsigned char reserved[64]; /* reserved for future */ 424 }; 425 426 enum { 427 SNDRV_PCM_TSTAMP_NONE = 0, 428 SNDRV_PCM_TSTAMP_ENABLE, 429 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 430 }; 431 432 struct snd_pcm_sw_params { 433 int tstamp_mode; /* timestamp mode */ 434 unsigned int period_step; 435 unsigned int sleep_min; /* min ticks to sleep */ 436 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 437 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 438 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 439 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 440 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 441 snd_pcm_uframes_t silence_size; /* silence block size */ 442 snd_pcm_uframes_t boundary; /* pointers wrap point */ 443 unsigned int proto; /* protocol version */ 444 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 445 unsigned char reserved[56]; /* reserved for future */ 446 }; 447 448 struct snd_pcm_channel_info { 449 unsigned int channel; 450 __kernel_off_t offset; /* mmap offset */ 451 unsigned int first; /* offset to first sample in bits */ 452 unsigned int step; /* samples distance in bits */ 453 }; 454 455 enum { 456 /* 457 * first definition for backwards compatibility only, 458 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 459 */ 460 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 461 462 /* timestamp definitions */ 463 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 464 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 465 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 466 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 467 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 468 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 469 }; 470 471 /* explicit padding avoids incompatibility between i386 and x86-64 */ 472 typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad; 473 474 struct snd_pcm_status { 475 snd_pcm_state_t state; /* stream state */ 476 __time_pad pad1; /* align to timespec */ 477 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 478 struct timespec tstamp; /* reference timestamp */ 479 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 480 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 481 snd_pcm_sframes_t delay; /* current delay in frames */ 482 snd_pcm_uframes_t avail; /* number of frames available */ 483 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 484 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 485 snd_pcm_state_t suspended_state; /* suspended stream state */ 486 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 487 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 488 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 489 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 490 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 491 }; 492 493 /* 494 * For mmap operations, we need the 64-bit layout, both for compat mode, 495 * and for y2038 compatibility. For 64-bit applications, the two definitions 496 * are identical, so we keep the traditional version. 497 */ 498 #ifdef __SND_STRUCT_TIME64 499 #define __snd_pcm_mmap_status64 snd_pcm_mmap_status 500 #define __snd_pcm_mmap_control64 snd_pcm_mmap_control 501 #define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr 502 #define __snd_timespec64 timespec 503 struct __snd_timespec { 504 __s32 tv_sec; 505 __s32 tv_nsec; 506 }; 507 #else 508 #define __snd_pcm_mmap_status snd_pcm_mmap_status 509 #define __snd_pcm_mmap_control snd_pcm_mmap_control 510 #define __snd_pcm_sync_ptr snd_pcm_sync_ptr 511 #define __snd_timespec timespec 512 struct __snd_timespec64 { 513 __s64 tv_sec; 514 __s64 tv_nsec; 515 }; 516 517 #endif 518 519 struct __snd_pcm_mmap_status { 520 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 521 int pad1; /* Needed for 64 bit alignment */ 522 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 523 struct __snd_timespec tstamp; /* Timestamp */ 524 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 525 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */ 526 }; 527 528 struct __snd_pcm_mmap_control { 529 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 530 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 531 }; 532 533 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 534 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 535 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 536 537 struct __snd_pcm_sync_ptr { 538 unsigned int flags; 539 union { 540 struct __snd_pcm_mmap_status status; 541 unsigned char reserved[64]; 542 } s; 543 union { 544 struct __snd_pcm_mmap_control control; 545 unsigned char reserved[64]; 546 } c; 547 }; 548 549 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) 550 typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 551 typedef char __pad_after_uframe[0]; 552 #endif 553 554 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) 555 typedef char __pad_before_uframe[0]; 556 typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 557 #endif 558 559 struct __snd_pcm_mmap_status64 { 560 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 561 __u32 pad1; /* Needed for 64 bit alignment */ 562 __pad_before_uframe __pad1; 563 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 564 __pad_after_uframe __pad2; 565 struct __snd_timespec64 tstamp; /* Timestamp */ 566 snd_pcm_state_t suspended_state;/* RO: suspended stream state */ 567 __u32 pad3; /* Needed for 64 bit alignment */ 568 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */ 569 }; 570 571 struct __snd_pcm_mmap_control64 { 572 __pad_before_uframe __pad1; 573 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 574 __pad_before_uframe __pad2; 575 576 __pad_before_uframe __pad3; 577 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 578 __pad_after_uframe __pad4; 579 }; 580 581 struct __snd_pcm_sync_ptr64 { 582 __u32 flags; 583 __u32 pad1; 584 union { 585 struct __snd_pcm_mmap_status64 status; 586 unsigned char reserved[64]; 587 } s; 588 union { 589 struct __snd_pcm_mmap_control64 control; 590 unsigned char reserved[64]; 591 } c; 592 }; 593 594 struct snd_xferi { 595 snd_pcm_sframes_t result; 596 void *buf; 597 snd_pcm_uframes_t frames; 598 }; 599 600 struct snd_xfern { 601 snd_pcm_sframes_t result; 602 void * *bufs; 603 snd_pcm_uframes_t frames; 604 }; 605 606 enum { 607 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 608 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 609 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 610 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 611 }; 612 613 /* channel positions */ 614 enum { 615 SNDRV_CHMAP_UNKNOWN = 0, 616 SNDRV_CHMAP_NA, /* N/A, silent */ 617 SNDRV_CHMAP_MONO, /* mono stream */ 618 /* this follows the alsa-lib mixer channel value + 3 */ 619 SNDRV_CHMAP_FL, /* front left */ 620 SNDRV_CHMAP_FR, /* front right */ 621 SNDRV_CHMAP_RL, /* rear left */ 622 SNDRV_CHMAP_RR, /* rear right */ 623 SNDRV_CHMAP_FC, /* front center */ 624 SNDRV_CHMAP_LFE, /* LFE */ 625 SNDRV_CHMAP_SL, /* side left */ 626 SNDRV_CHMAP_SR, /* side right */ 627 SNDRV_CHMAP_RC, /* rear center */ 628 /* new definitions */ 629 SNDRV_CHMAP_FLC, /* front left center */ 630 SNDRV_CHMAP_FRC, /* front right center */ 631 SNDRV_CHMAP_RLC, /* rear left center */ 632 SNDRV_CHMAP_RRC, /* rear right center */ 633 SNDRV_CHMAP_FLW, /* front left wide */ 634 SNDRV_CHMAP_FRW, /* front right wide */ 635 SNDRV_CHMAP_FLH, /* front left high */ 636 SNDRV_CHMAP_FCH, /* front center high */ 637 SNDRV_CHMAP_FRH, /* front right high */ 638 SNDRV_CHMAP_TC, /* top center */ 639 SNDRV_CHMAP_TFL, /* top front left */ 640 SNDRV_CHMAP_TFR, /* top front right */ 641 SNDRV_CHMAP_TFC, /* top front center */ 642 SNDRV_CHMAP_TRL, /* top rear left */ 643 SNDRV_CHMAP_TRR, /* top rear right */ 644 SNDRV_CHMAP_TRC, /* top rear center */ 645 /* new definitions for UAC2 */ 646 SNDRV_CHMAP_TFLC, /* top front left center */ 647 SNDRV_CHMAP_TFRC, /* top front right center */ 648 SNDRV_CHMAP_TSL, /* top side left */ 649 SNDRV_CHMAP_TSR, /* top side right */ 650 SNDRV_CHMAP_LLFE, /* left LFE */ 651 SNDRV_CHMAP_RLFE, /* right LFE */ 652 SNDRV_CHMAP_BC, /* bottom center */ 653 SNDRV_CHMAP_BLC, /* bottom left center */ 654 SNDRV_CHMAP_BRC, /* bottom right center */ 655 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 656 }; 657 658 #define SNDRV_CHMAP_POSITION_MASK 0xffff 659 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 660 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 661 662 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 663 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 664 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 665 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 666 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 667 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 668 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 669 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 670 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 671 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 672 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 673 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 674 #define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr) 675 #define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64) 676 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 677 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 678 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 679 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 680 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 681 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 682 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 683 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 684 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 685 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 686 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 687 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 688 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 689 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 690 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 691 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 692 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 693 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 694 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 695 696 /***************************************************************************** 697 * * 698 * MIDI v1.0 interface * 699 * * 700 *****************************************************************************/ 701 702 /* 703 * Raw MIDI section - /dev/snd/midi?? 704 */ 705 706 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2) 707 708 enum { 709 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 710 SNDRV_RAWMIDI_STREAM_INPUT, 711 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 712 }; 713 714 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 715 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 716 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 717 718 struct snd_rawmidi_info { 719 unsigned int device; /* RO/WR (control): device number */ 720 unsigned int subdevice; /* RO/WR (control): subdevice number */ 721 int stream; /* WR: stream */ 722 int card; /* R: card number */ 723 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 724 unsigned char id[64]; /* ID (user selectable) */ 725 unsigned char name[80]; /* name of device */ 726 unsigned char subname[32]; /* name of active or selected subdevice */ 727 unsigned int subdevices_count; 728 unsigned int subdevices_avail; 729 unsigned char reserved[64]; /* reserved for future use */ 730 }; 731 732 #define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0) 733 #define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0 734 #define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0) 735 #define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0) 736 #define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3) 737 #define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3 738 #define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3) 739 #define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3) 740 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3) 741 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3) 742 743 #define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16 744 745 struct snd_rawmidi_framing_tstamp { 746 /* For now, frame_type is always 0. Midi 2.0 is expected to add new 747 * types here. Applications are expected to skip unknown frame types. 748 */ 749 __u8 frame_type; 750 __u8 length; /* number of valid bytes in data field */ 751 __u8 reserved[2]; 752 __u32 tv_nsec; /* nanoseconds */ 753 __u64 tv_sec; /* seconds */ 754 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH]; 755 } __attribute__((packed)); 756 757 struct snd_rawmidi_params { 758 int stream; 759 size_t buffer_size; /* queue size in bytes */ 760 size_t avail_min; /* minimum avail bytes for wakeup */ 761 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 762 unsigned int mode; /* For input data only, frame incoming data */ 763 unsigned char reserved[12]; /* reserved for future use */ 764 }; 765 766 struct snd_rawmidi_status { 767 int stream; 768 __time_pad pad1; 769 struct timespec tstamp; /* Timestamp */ 770 size_t avail; /* available bytes */ 771 size_t xruns; /* count of overruns since last status (in bytes) */ 772 unsigned char reserved[16]; /* reserved for future use */ 773 }; 774 775 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 776 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 777 #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) 778 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 779 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 780 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 781 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 782 783 /* 784 * Timer section - /dev/snd/timer 785 */ 786 787 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 788 789 enum { 790 SNDRV_TIMER_CLASS_NONE = -1, 791 SNDRV_TIMER_CLASS_SLAVE = 0, 792 SNDRV_TIMER_CLASS_GLOBAL, 793 SNDRV_TIMER_CLASS_CARD, 794 SNDRV_TIMER_CLASS_PCM, 795 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 796 }; 797 798 /* slave timer classes */ 799 enum { 800 SNDRV_TIMER_SCLASS_NONE = 0, 801 SNDRV_TIMER_SCLASS_APPLICATION, 802 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 803 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 804 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 805 }; 806 807 /* global timers (device member) */ 808 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 809 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 810 #define SNDRV_TIMER_GLOBAL_HPET 2 811 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 812 813 /* info flags */ 814 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 815 816 struct snd_timer_id { 817 int dev_class; 818 int dev_sclass; 819 int card; 820 int device; 821 int subdevice; 822 }; 823 824 struct snd_timer_ginfo { 825 struct snd_timer_id tid; /* requested timer ID */ 826 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 827 int card; /* card number */ 828 unsigned char id[64]; /* timer identification */ 829 unsigned char name[80]; /* timer name */ 830 unsigned long reserved0; /* reserved for future use */ 831 unsigned long resolution; /* average period resolution in ns */ 832 unsigned long resolution_min; /* minimal period resolution in ns */ 833 unsigned long resolution_max; /* maximal period resolution in ns */ 834 unsigned int clients; /* active timer clients */ 835 unsigned char reserved[32]; 836 }; 837 838 struct snd_timer_gparams { 839 struct snd_timer_id tid; /* requested timer ID */ 840 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 841 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 842 unsigned char reserved[32]; 843 }; 844 845 struct snd_timer_gstatus { 846 struct snd_timer_id tid; /* requested timer ID */ 847 unsigned long resolution; /* current period resolution in ns */ 848 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 849 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 850 unsigned char reserved[32]; 851 }; 852 853 struct snd_timer_select { 854 struct snd_timer_id id; /* bind to timer ID */ 855 unsigned char reserved[32]; /* reserved */ 856 }; 857 858 struct snd_timer_info { 859 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 860 int card; /* card number */ 861 unsigned char id[64]; /* timer identificator */ 862 unsigned char name[80]; /* timer name */ 863 unsigned long reserved0; /* reserved for future use */ 864 unsigned long resolution; /* average period resolution in ns */ 865 unsigned char reserved[64]; /* reserved */ 866 }; 867 868 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 869 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 870 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 871 872 struct snd_timer_params { 873 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */ 874 unsigned int ticks; /* requested resolution in ticks */ 875 unsigned int queue_size; /* total size of queue (32-1024) */ 876 unsigned int reserved0; /* reserved, was: failure locations */ 877 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 878 unsigned char reserved[60]; /* reserved */ 879 }; 880 881 struct snd_timer_status { 882 struct timespec tstamp; /* Timestamp - last update */ 883 unsigned int resolution; /* current period resolution in ns */ 884 unsigned int lost; /* counter of master tick lost */ 885 unsigned int overrun; /* count of read queue overruns */ 886 unsigned int queue; /* used queue size */ 887 unsigned char reserved[64]; /* reserved */ 888 }; 889 890 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 891 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 892 #define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int) 893 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 894 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 895 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 896 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 897 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 898 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 899 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 900 /* The following four ioctls are changed since 1.0.9 due to confliction */ 901 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 902 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 903 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 904 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 905 #define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int) 906 907 #if __BITS_PER_LONG == 64 908 #define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD 909 #else 910 #define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \ 911 SNDRV_TIMER_IOCTL_TREAD_OLD : \ 912 SNDRV_TIMER_IOCTL_TREAD64) 913 #endif 914 915 struct snd_timer_read { 916 unsigned int resolution; 917 unsigned int ticks; 918 }; 919 920 enum { 921 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 922 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 923 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 924 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 925 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 926 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 927 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 928 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 929 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 930 /* master timer events for slave timer instances */ 931 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 932 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 933 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 934 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 935 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 936 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 937 }; 938 939 struct snd_timer_tread { 940 int event; 941 __time_pad pad1; 942 struct timespec tstamp; 943 unsigned int val; 944 __time_pad pad2; 945 }; 946 947 /**************************************************************************** 948 * * 949 * Section for driver control interface - /dev/snd/control? * 950 * * 951 ****************************************************************************/ 952 953 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8) 954 955 struct snd_ctl_card_info { 956 int card; /* card number */ 957 int pad; /* reserved for future (was type) */ 958 unsigned char id[16]; /* ID of card (user selectable) */ 959 unsigned char driver[16]; /* Driver name */ 960 unsigned char name[32]; /* Short name of soundcard */ 961 unsigned char longname[80]; /* name + info text about soundcard */ 962 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 963 unsigned char mixername[80]; /* visual mixer identification */ 964 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 965 }; 966 967 typedef int __bitwise snd_ctl_elem_type_t; 968 #define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */ 969 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */ 970 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */ 971 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */ 972 #define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */ 973 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 974 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 975 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 976 977 typedef int __bitwise snd_ctl_elem_iface_t; 978 #define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */ 979 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 980 #define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 981 #define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */ 982 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */ 983 #define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */ 984 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */ 985 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 986 987 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 988 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 989 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 990 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 991 /* (1 << 3) is unused. */ 992 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 993 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 994 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 995 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 996 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 997 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 998 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 999 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 1000 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 1001 /* bits 30 and 31 are obsoleted (for indirect access) */ 1002 1003 /* for further details see the ACPI and PCI power management specification */ 1004 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 1005 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 1006 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 1007 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 1008 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 1009 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 1010 1011 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 1012 1013 struct snd_ctl_elem_id { 1014 unsigned int numid; /* numeric identifier, zero = invalid */ 1015 snd_ctl_elem_iface_t iface; /* interface identifier */ 1016 unsigned int device; /* device/client number */ 1017 unsigned int subdevice; /* subdevice (substream) number */ 1018 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 1019 unsigned int index; /* index of item */ 1020 }; 1021 1022 struct snd_ctl_elem_list { 1023 unsigned int offset; /* W: first element ID to get */ 1024 unsigned int space; /* W: count of element IDs to get */ 1025 unsigned int used; /* R: count of element IDs set */ 1026 unsigned int count; /* R: count of all elements */ 1027 struct snd_ctl_elem_id *pids; /* R: IDs */ 1028 unsigned char reserved[50]; 1029 }; 1030 1031 struct snd_ctl_elem_info { 1032 struct snd_ctl_elem_id id; /* W: element ID */ 1033 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 1034 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 1035 unsigned int count; /* count of values */ 1036 __kernel_pid_t owner; /* owner's PID of this control */ 1037 union { 1038 struct { 1039 long min; /* R: minimum value */ 1040 long max; /* R: maximum value */ 1041 long step; /* R: step (0 variable) */ 1042 } integer; 1043 struct { 1044 long long min; /* R: minimum value */ 1045 long long max; /* R: maximum value */ 1046 long long step; /* R: step (0 variable) */ 1047 } integer64; 1048 struct { 1049 unsigned int items; /* R: number of items */ 1050 unsigned int item; /* W: item number */ 1051 char name[64]; /* R: value name */ 1052 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 1053 unsigned int names_length; 1054 } enumerated; 1055 unsigned char reserved[128]; 1056 } value; 1057 unsigned char reserved[64]; 1058 }; 1059 1060 struct snd_ctl_elem_value { 1061 struct snd_ctl_elem_id id; /* W: element ID */ 1062 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 1063 union { 1064 union { 1065 long value[128]; 1066 long *value_ptr; /* obsoleted */ 1067 } integer; 1068 union { 1069 long long value[64]; 1070 long long *value_ptr; /* obsoleted */ 1071 } integer64; 1072 union { 1073 unsigned int item[128]; 1074 unsigned int *item_ptr; /* obsoleted */ 1075 } enumerated; 1076 union { 1077 unsigned char data[512]; 1078 unsigned char *data_ptr; /* obsoleted */ 1079 } bytes; 1080 struct snd_aes_iec958 iec958; 1081 } value; /* RO */ 1082 unsigned char reserved[128]; 1083 }; 1084 1085 struct snd_ctl_tlv { 1086 unsigned int numid; /* control element numeric identification */ 1087 unsigned int length; /* in bytes aligned to 4 */ 1088 unsigned int tlv[0]; /* first TLV */ 1089 }; 1090 1091 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 1092 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 1093 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 1094 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 1095 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 1096 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 1097 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 1098 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 1099 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 1100 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 1101 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 1102 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 1103 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 1104 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 1105 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 1106 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 1107 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 1108 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 1109 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 1110 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 1111 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 1112 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 1113 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 1114 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 1115 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 1116 1117 /* 1118 * Read interface. 1119 */ 1120 1121 enum sndrv_ctl_event_type { 1122 SNDRV_CTL_EVENT_ELEM = 0, 1123 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 1124 }; 1125 1126 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 1127 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 1128 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 1129 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1130 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1131 1132 struct snd_ctl_event { 1133 int type; /* event type - SNDRV_CTL_EVENT_* */ 1134 union { 1135 struct { 1136 unsigned int mask; 1137 struct snd_ctl_elem_id id; 1138 } elem; 1139 unsigned char data8[60]; 1140 } data; 1141 }; 1142 1143 /* 1144 * Control names 1145 */ 1146 1147 #define SNDRV_CTL_NAME_NONE "" 1148 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1149 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1150 1151 #define SNDRV_CTL_NAME_IEC958_NONE "" 1152 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1153 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1154 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1155 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1156 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1157 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1158 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1159 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1160 1161 #endif /* __SOUND_ASOUND_H */