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 _UAPI__SOUND_ASOUND_H 25 #define _UAPI__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 #ifndef __KERNEL__ 36 #include <stdlib.h> 37 #include <time.h> 38 #endif 39 40 /* 41 * protocol version 42 */ 43 44 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 45 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 46 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 47 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 48 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 49 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 50 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 51 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 52 53 /**************************************************************************** 54 * * 55 * Digital audio interface * 56 * * 57 ****************************************************************************/ 58 59 struct snd_aes_iec958 { 60 unsigned char status[24]; /* AES/IEC958 channel status bits */ 61 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 62 unsigned char pad; /* nothing */ 63 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 64 }; 65 66 /**************************************************************************** 67 * * 68 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 69 * * 70 ****************************************************************************/ 71 72 struct snd_cea_861_aud_if { 73 unsigned char db1_ct_cc; /* coding type and channel count */ 74 unsigned char db2_sf_ss; /* sample frequency and size */ 75 unsigned char db3; /* not used, all zeros */ 76 unsigned char db4_ca; /* channel allocation code */ 77 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 78 }; 79 80 /**************************************************************************** 81 * * 82 * Section for driver hardware dependent interface - /dev/snd/hw? * 83 * * 84 ****************************************************************************/ 85 86 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 87 88 enum { 89 SNDRV_HWDEP_IFACE_OPL2 = 0, 90 SNDRV_HWDEP_IFACE_OPL3, 91 SNDRV_HWDEP_IFACE_OPL4, 92 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 93 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 94 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 95 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 96 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 97 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 98 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 99 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 100 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 101 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 102 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 103 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 104 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 105 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 106 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 107 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 108 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 109 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 110 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 111 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 112 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 113 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 114 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 115 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 116 117 /* Don't forget to change the following: */ 118 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE 119 }; 120 121 struct snd_hwdep_info { 122 unsigned int device; /* WR: device number */ 123 int card; /* R: card number */ 124 unsigned char id[64]; /* ID (user selectable) */ 125 unsigned char name[80]; /* hwdep name */ 126 int iface; /* hwdep interface */ 127 unsigned char reserved[64]; /* reserved for future */ 128 }; 129 130 /* generic DSP loader */ 131 struct snd_hwdep_dsp_status { 132 unsigned int version; /* R: driver-specific version */ 133 unsigned char id[32]; /* R: driver-specific ID string */ 134 unsigned int num_dsps; /* R: number of DSP images to transfer */ 135 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 136 unsigned int chip_ready; /* R: 1 = initialization finished */ 137 unsigned char reserved[16]; /* reserved for future use */ 138 }; 139 140 struct snd_hwdep_dsp_image { 141 unsigned int index; /* W: DSP index */ 142 unsigned char name[64]; /* W: ID (e.g. file name) */ 143 unsigned char __user *image; /* W: binary image */ 144 size_t length; /* W: size of image in bytes */ 145 unsigned long driver_data; /* W: driver-specific data */ 146 }; 147 148 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 149 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 150 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 151 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 152 153 /***************************************************************************** 154 * * 155 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 156 * * 157 *****************************************************************************/ 158 159 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15) 160 161 typedef unsigned long snd_pcm_uframes_t; 162 typedef signed long snd_pcm_sframes_t; 163 164 enum { 165 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 166 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 167 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 168 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 169 /* Don't forget to change the following: */ 170 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 171 }; 172 173 enum { 174 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 175 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 176 /* Don't forget to change the following: */ 177 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 178 }; 179 180 enum { 181 SNDRV_PCM_STREAM_PLAYBACK = 0, 182 SNDRV_PCM_STREAM_CAPTURE, 183 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 184 }; 185 186 typedef int __bitwise snd_pcm_access_t; 187 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 188 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 189 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 190 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 191 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 192 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 193 194 typedef int __bitwise snd_pcm_format_t; 195 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 196 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 197 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 198 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 199 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 200 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 201 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 202 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 203 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 204 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 205 /* 206 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the 207 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or 208 * `right-padding` sample which has less width than 32 bit. 209 */ 210 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 211 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 212 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 213 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 214 #define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 215 #define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 216 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 217 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 218 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 219 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 220 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 221 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 222 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 223 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 224 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 225 #define SNDRV_PCM_FORMAT_S20_LE ((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */ 226 #define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */ 227 #define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */ 228 #define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */ 229 /* gap in the numbering for a future standard linear format */ 230 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 231 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 232 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 233 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 234 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 235 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 236 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 237 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 238 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 239 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 240 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 241 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 242 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 243 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 244 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 245 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 246 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 247 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 248 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 249 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 250 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 251 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 252 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 253 #define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8 254 255 #ifdef SNDRV_LITTLE_ENDIAN 256 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 257 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 258 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 259 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 260 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 261 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 262 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 263 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 264 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 265 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE 266 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE 267 #endif 268 #ifdef SNDRV_BIG_ENDIAN 269 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 270 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 271 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 272 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 273 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 274 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 275 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 276 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 277 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 278 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE 279 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE 280 #endif 281 282 typedef int __bitwise snd_pcm_subformat_t; 283 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 284 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 285 286 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 287 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 288 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 289 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 290 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 291 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 292 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 293 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 294 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 295 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 296 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 297 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 298 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 299 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 300 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 301 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 302 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 303 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 304 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 305 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 306 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 307 #define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */ 308 309 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 310 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 311 312 #if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__ 313 #define __SND_STRUCT_TIME64 314 #endif 315 316 typedef int __bitwise snd_pcm_state_t; 317 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 318 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 319 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 320 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 321 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 322 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 323 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 324 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 325 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 326 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 327 328 enum { 329 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 330 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000, 331 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000, 332 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000, 333 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000, 334 #ifdef __SND_STRUCT_TIME64 335 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW, 336 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW, 337 #else 338 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD, 339 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD, 340 #endif 341 }; 342 343 union snd_pcm_sync_id { 344 unsigned char id[16]; 345 unsigned short id16[8]; 346 unsigned int id32[4]; 347 }; 348 349 struct snd_pcm_info { 350 unsigned int device; /* RO/WR (control): device number */ 351 unsigned int subdevice; /* RO/WR (control): subdevice number */ 352 int stream; /* RO/WR (control): stream direction */ 353 int card; /* R: card number */ 354 unsigned char id[64]; /* ID (user selectable) */ 355 unsigned char name[80]; /* name of this device */ 356 unsigned char subname[32]; /* subdevice name */ 357 int dev_class; /* SNDRV_PCM_CLASS_* */ 358 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 359 unsigned int subdevices_count; 360 unsigned int subdevices_avail; 361 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 362 unsigned char reserved[64]; /* reserved for future... */ 363 }; 364 365 typedef int snd_pcm_hw_param_t; 366 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 367 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 368 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 369 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 370 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 371 372 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 373 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 374 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 375 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 376 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 377 * interrupts in us 378 */ 379 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 380 * interrupts 381 */ 382 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 383 * interrupts 384 */ 385 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 386 * buffer 387 */ 388 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 389 * in us 390 */ 391 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 392 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 393 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 394 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 395 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 396 397 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 398 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 399 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 400 401 struct snd_interval { 402 unsigned int min, max; 403 unsigned int openmin:1, 404 openmax:1, 405 integer:1, 406 empty:1; 407 }; 408 409 #define SNDRV_MASK_MAX 256 410 411 struct snd_mask { 412 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 413 }; 414 415 struct snd_pcm_hw_params { 416 unsigned int flags; 417 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 418 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 419 struct snd_mask mres[5]; /* reserved masks */ 420 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 421 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 422 struct snd_interval ires[9]; /* reserved intervals */ 423 unsigned int rmask; /* W: requested masks */ 424 unsigned int cmask; /* R: changed masks */ 425 unsigned int info; /* R: Info flags for returned setup */ 426 unsigned int msbits; /* R: used most significant bits */ 427 unsigned int rate_num; /* R: rate numerator */ 428 unsigned int rate_den; /* R: rate denominator */ 429 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 430 unsigned char reserved[64]; /* reserved for future */ 431 }; 432 433 enum { 434 SNDRV_PCM_TSTAMP_NONE = 0, 435 SNDRV_PCM_TSTAMP_ENABLE, 436 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 437 }; 438 439 struct snd_pcm_sw_params { 440 int tstamp_mode; /* timestamp mode */ 441 unsigned int period_step; 442 unsigned int sleep_min; /* min ticks to sleep */ 443 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 444 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 445 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 446 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 447 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 448 snd_pcm_uframes_t silence_size; /* silence block size */ 449 snd_pcm_uframes_t boundary; /* pointers wrap point */ 450 unsigned int proto; /* protocol version */ 451 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 452 unsigned char reserved[56]; /* reserved for future */ 453 }; 454 455 struct snd_pcm_channel_info { 456 unsigned int channel; 457 __kernel_off_t offset; /* mmap offset */ 458 unsigned int first; /* offset to first sample in bits */ 459 unsigned int step; /* samples distance in bits */ 460 }; 461 462 enum { 463 /* 464 * first definition for backwards compatibility only, 465 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 466 */ 467 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 468 469 /* timestamp definitions */ 470 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 471 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 472 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 473 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 474 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 475 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 476 }; 477 478 #ifndef __KERNEL__ 479 /* explicit padding avoids incompatibility between i386 and x86-64 */ 480 typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad; 481 482 struct snd_pcm_status { 483 snd_pcm_state_t state; /* stream state */ 484 __time_pad pad1; /* align to timespec */ 485 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 486 struct timespec tstamp; /* reference timestamp */ 487 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 488 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 489 snd_pcm_sframes_t delay; /* current delay in frames */ 490 snd_pcm_uframes_t avail; /* number of frames available */ 491 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 492 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 493 snd_pcm_state_t suspended_state; /* suspended stream state */ 494 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 495 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 496 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 497 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 498 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 499 }; 500 #endif 501 502 /* 503 * For mmap operations, we need the 64-bit layout, both for compat mode, 504 * and for y2038 compatibility. For 64-bit applications, the two definitions 505 * are identical, so we keep the traditional version. 506 */ 507 #ifdef __SND_STRUCT_TIME64 508 #define __snd_pcm_mmap_status64 snd_pcm_mmap_status 509 #define __snd_pcm_mmap_control64 snd_pcm_mmap_control 510 #define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr 511 #ifdef __KERNEL__ 512 #define __snd_timespec64 __kernel_timespec 513 #else 514 #define __snd_timespec64 timespec 515 #endif 516 struct __snd_timespec { 517 __s32 tv_sec; 518 __s32 tv_nsec; 519 }; 520 #else 521 #define __snd_pcm_mmap_status snd_pcm_mmap_status 522 #define __snd_pcm_mmap_control snd_pcm_mmap_control 523 #define __snd_pcm_sync_ptr snd_pcm_sync_ptr 524 #define __snd_timespec timespec 525 struct __snd_timespec64 { 526 __s64 tv_sec; 527 __s64 tv_nsec; 528 }; 529 530 #endif 531 532 struct __snd_pcm_mmap_status { 533 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 534 int pad1; /* Needed for 64 bit alignment */ 535 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 536 struct __snd_timespec tstamp; /* Timestamp */ 537 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 538 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */ 539 }; 540 541 struct __snd_pcm_mmap_control { 542 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 543 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 544 }; 545 546 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 547 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 548 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 549 550 struct __snd_pcm_sync_ptr { 551 unsigned int flags; 552 union { 553 struct __snd_pcm_mmap_status status; 554 unsigned char reserved[64]; 555 } s; 556 union { 557 struct __snd_pcm_mmap_control control; 558 unsigned char reserved[64]; 559 } c; 560 }; 561 562 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) 563 typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 564 typedef char __pad_after_uframe[0]; 565 #endif 566 567 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) 568 typedef char __pad_before_uframe[0]; 569 typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 570 #endif 571 572 struct __snd_pcm_mmap_status64 { 573 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 574 __u32 pad1; /* Needed for 64 bit alignment */ 575 __pad_before_uframe __pad1; 576 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 577 __pad_after_uframe __pad2; 578 struct __snd_timespec64 tstamp; /* Timestamp */ 579 snd_pcm_state_t suspended_state;/* RO: suspended stream state */ 580 __u32 pad3; /* Needed for 64 bit alignment */ 581 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */ 582 }; 583 584 struct __snd_pcm_mmap_control64 { 585 __pad_before_uframe __pad1; 586 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 587 __pad_before_uframe __pad2; 588 589 __pad_before_uframe __pad3; 590 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 591 __pad_after_uframe __pad4; 592 }; 593 594 struct __snd_pcm_sync_ptr64 { 595 __u32 flags; 596 __u32 pad1; 597 union { 598 struct __snd_pcm_mmap_status64 status; 599 unsigned char reserved[64]; 600 } s; 601 union { 602 struct __snd_pcm_mmap_control64 control; 603 unsigned char reserved[64]; 604 } c; 605 }; 606 607 struct snd_xferi { 608 snd_pcm_sframes_t result; 609 void __user *buf; 610 snd_pcm_uframes_t frames; 611 }; 612 613 struct snd_xfern { 614 snd_pcm_sframes_t result; 615 void __user * __user *bufs; 616 snd_pcm_uframes_t frames; 617 }; 618 619 enum { 620 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 621 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 622 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 623 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 624 }; 625 626 /* channel positions */ 627 enum { 628 SNDRV_CHMAP_UNKNOWN = 0, 629 SNDRV_CHMAP_NA, /* N/A, silent */ 630 SNDRV_CHMAP_MONO, /* mono stream */ 631 /* this follows the alsa-lib mixer channel value + 3 */ 632 SNDRV_CHMAP_FL, /* front left */ 633 SNDRV_CHMAP_FR, /* front right */ 634 SNDRV_CHMAP_RL, /* rear left */ 635 SNDRV_CHMAP_RR, /* rear right */ 636 SNDRV_CHMAP_FC, /* front center */ 637 SNDRV_CHMAP_LFE, /* LFE */ 638 SNDRV_CHMAP_SL, /* side left */ 639 SNDRV_CHMAP_SR, /* side right */ 640 SNDRV_CHMAP_RC, /* rear center */ 641 /* new definitions */ 642 SNDRV_CHMAP_FLC, /* front left center */ 643 SNDRV_CHMAP_FRC, /* front right center */ 644 SNDRV_CHMAP_RLC, /* rear left center */ 645 SNDRV_CHMAP_RRC, /* rear right center */ 646 SNDRV_CHMAP_FLW, /* front left wide */ 647 SNDRV_CHMAP_FRW, /* front right wide */ 648 SNDRV_CHMAP_FLH, /* front left high */ 649 SNDRV_CHMAP_FCH, /* front center high */ 650 SNDRV_CHMAP_FRH, /* front right high */ 651 SNDRV_CHMAP_TC, /* top center */ 652 SNDRV_CHMAP_TFL, /* top front left */ 653 SNDRV_CHMAP_TFR, /* top front right */ 654 SNDRV_CHMAP_TFC, /* top front center */ 655 SNDRV_CHMAP_TRL, /* top rear left */ 656 SNDRV_CHMAP_TRR, /* top rear right */ 657 SNDRV_CHMAP_TRC, /* top rear center */ 658 /* new definitions for UAC2 */ 659 SNDRV_CHMAP_TFLC, /* top front left center */ 660 SNDRV_CHMAP_TFRC, /* top front right center */ 661 SNDRV_CHMAP_TSL, /* top side left */ 662 SNDRV_CHMAP_TSR, /* top side right */ 663 SNDRV_CHMAP_LLFE, /* left LFE */ 664 SNDRV_CHMAP_RLFE, /* right LFE */ 665 SNDRV_CHMAP_BC, /* bottom center */ 666 SNDRV_CHMAP_BLC, /* bottom left center */ 667 SNDRV_CHMAP_BRC, /* bottom right center */ 668 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 669 }; 670 671 #define SNDRV_CHMAP_POSITION_MASK 0xffff 672 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 673 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 674 675 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 676 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 677 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 678 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 679 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 680 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 681 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 682 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 683 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 684 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 685 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 686 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 687 #define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr) 688 #define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64) 689 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 690 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 691 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 692 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 693 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 694 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 695 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 696 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 697 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 698 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 699 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 700 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 701 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 702 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 703 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 704 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 705 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 706 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 707 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 708 709 /***************************************************************************** 710 * * 711 * MIDI v1.0 interface * 712 * * 713 *****************************************************************************/ 714 715 /* 716 * Raw MIDI section - /dev/snd/midi?? 717 */ 718 719 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2) 720 721 enum { 722 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 723 SNDRV_RAWMIDI_STREAM_INPUT, 724 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 725 }; 726 727 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 728 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 729 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 730 731 struct snd_rawmidi_info { 732 unsigned int device; /* RO/WR (control): device number */ 733 unsigned int subdevice; /* RO/WR (control): subdevice number */ 734 int stream; /* WR: stream */ 735 int card; /* R: card number */ 736 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 737 unsigned char id[64]; /* ID (user selectable) */ 738 unsigned char name[80]; /* name of device */ 739 unsigned char subname[32]; /* name of active or selected subdevice */ 740 unsigned int subdevices_count; 741 unsigned int subdevices_avail; 742 unsigned char reserved[64]; /* reserved for future use */ 743 }; 744 745 #define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0) 746 #define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0 747 #define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0) 748 #define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0) 749 #define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3) 750 #define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3 751 #define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3) 752 #define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3) 753 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3) 754 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3) 755 756 #define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16 757 758 struct snd_rawmidi_framing_tstamp { 759 /* For now, frame_type is always 0. Midi 2.0 is expected to add new 760 * types here. Applications are expected to skip unknown frame types. 761 */ 762 __u8 frame_type; 763 __u8 length; /* number of valid bytes in data field */ 764 __u8 reserved[2]; 765 __u32 tv_nsec; /* nanoseconds */ 766 __u64 tv_sec; /* seconds */ 767 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH]; 768 } __packed; 769 770 struct snd_rawmidi_params { 771 int stream; 772 size_t buffer_size; /* queue size in bytes */ 773 size_t avail_min; /* minimum avail bytes for wakeup */ 774 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 775 unsigned int mode; /* For input data only, frame incoming data */ 776 unsigned char reserved[12]; /* reserved for future use */ 777 }; 778 779 #ifndef __KERNEL__ 780 struct snd_rawmidi_status { 781 int stream; 782 __time_pad pad1; 783 struct timespec tstamp; /* Timestamp */ 784 size_t avail; /* available bytes */ 785 size_t xruns; /* count of overruns since last status (in bytes) */ 786 unsigned char reserved[16]; /* reserved for future use */ 787 }; 788 #endif 789 790 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 791 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 792 #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) 793 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 794 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 795 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 796 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 797 798 /* 799 * Timer section - /dev/snd/timer 800 */ 801 802 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 803 804 enum { 805 SNDRV_TIMER_CLASS_NONE = -1, 806 SNDRV_TIMER_CLASS_SLAVE = 0, 807 SNDRV_TIMER_CLASS_GLOBAL, 808 SNDRV_TIMER_CLASS_CARD, 809 SNDRV_TIMER_CLASS_PCM, 810 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 811 }; 812 813 /* slave timer classes */ 814 enum { 815 SNDRV_TIMER_SCLASS_NONE = 0, 816 SNDRV_TIMER_SCLASS_APPLICATION, 817 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 818 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 819 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 820 }; 821 822 /* global timers (device member) */ 823 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 824 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 825 #define SNDRV_TIMER_GLOBAL_HPET 2 826 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 827 828 /* info flags */ 829 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 830 831 struct snd_timer_id { 832 int dev_class; 833 int dev_sclass; 834 int card; 835 int device; 836 int subdevice; 837 }; 838 839 struct snd_timer_ginfo { 840 struct snd_timer_id tid; /* requested timer ID */ 841 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 842 int card; /* card number */ 843 unsigned char id[64]; /* timer identification */ 844 unsigned char name[80]; /* timer name */ 845 unsigned long reserved0; /* reserved for future use */ 846 unsigned long resolution; /* average period resolution in ns */ 847 unsigned long resolution_min; /* minimal period resolution in ns */ 848 unsigned long resolution_max; /* maximal period resolution in ns */ 849 unsigned int clients; /* active timer clients */ 850 unsigned char reserved[32]; 851 }; 852 853 struct snd_timer_gparams { 854 struct snd_timer_id tid; /* requested timer ID */ 855 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 856 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 857 unsigned char reserved[32]; 858 }; 859 860 struct snd_timer_gstatus { 861 struct snd_timer_id tid; /* requested timer ID */ 862 unsigned long resolution; /* current period resolution in ns */ 863 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 864 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 865 unsigned char reserved[32]; 866 }; 867 868 struct snd_timer_select { 869 struct snd_timer_id id; /* bind to timer ID */ 870 unsigned char reserved[32]; /* reserved */ 871 }; 872 873 struct snd_timer_info { 874 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 875 int card; /* card number */ 876 unsigned char id[64]; /* timer identificator */ 877 unsigned char name[80]; /* timer name */ 878 unsigned long reserved0; /* reserved for future use */ 879 unsigned long resolution; /* average period resolution in ns */ 880 unsigned char reserved[64]; /* reserved */ 881 }; 882 883 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 884 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 885 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 886 887 struct snd_timer_params { 888 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */ 889 unsigned int ticks; /* requested resolution in ticks */ 890 unsigned int queue_size; /* total size of queue (32-1024) */ 891 unsigned int reserved0; /* reserved, was: failure locations */ 892 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 893 unsigned char reserved[60]; /* reserved */ 894 }; 895 896 #ifndef __KERNEL__ 897 struct snd_timer_status { 898 struct timespec tstamp; /* Timestamp - last update */ 899 unsigned int resolution; /* current period resolution in ns */ 900 unsigned int lost; /* counter of master tick lost */ 901 unsigned int overrun; /* count of read queue overruns */ 902 unsigned int queue; /* used queue size */ 903 unsigned char reserved[64]; /* reserved */ 904 }; 905 #endif 906 907 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 908 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 909 #define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int) 910 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 911 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 912 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 913 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 914 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 915 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 916 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 917 /* The following four ioctls are changed since 1.0.9 due to confliction */ 918 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 919 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 920 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 921 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 922 #define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int) 923 924 #if __BITS_PER_LONG == 64 925 #define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD 926 #else 927 #define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \ 928 SNDRV_TIMER_IOCTL_TREAD_OLD : \ 929 SNDRV_TIMER_IOCTL_TREAD64) 930 #endif 931 932 struct snd_timer_read { 933 unsigned int resolution; 934 unsigned int ticks; 935 }; 936 937 enum { 938 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 939 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 940 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 941 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 942 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 943 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 944 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 945 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 946 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 947 /* master timer events for slave timer instances */ 948 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 949 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 950 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 951 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 952 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 953 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 954 }; 955 956 #ifndef __KERNEL__ 957 struct snd_timer_tread { 958 int event; 959 __time_pad pad1; 960 struct timespec tstamp; 961 unsigned int val; 962 __time_pad pad2; 963 }; 964 #endif 965 966 /**************************************************************************** 967 * * 968 * Section for driver control interface - /dev/snd/control? * 969 * * 970 ****************************************************************************/ 971 972 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8) 973 974 struct snd_ctl_card_info { 975 int card; /* card number */ 976 int pad; /* reserved for future (was type) */ 977 unsigned char id[16]; /* ID of card (user selectable) */ 978 unsigned char driver[16]; /* Driver name */ 979 unsigned char name[32]; /* Short name of soundcard */ 980 unsigned char longname[80]; /* name + info text about soundcard */ 981 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 982 unsigned char mixername[80]; /* visual mixer identification */ 983 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 984 }; 985 986 typedef int __bitwise snd_ctl_elem_type_t; 987 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 988 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 989 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 990 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 991 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 992 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 993 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 994 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 995 996 typedef int __bitwise snd_ctl_elem_iface_t; 997 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 998 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 999 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 1000 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 1001 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 1002 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 1003 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 1004 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 1005 1006 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 1007 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 1008 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 1009 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 1010 /* (1 << 3) is unused. */ 1011 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 1012 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 1013 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 1014 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 1015 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 1016 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 1017 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 1018 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 1019 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 1020 /* bits 30 and 31 are obsoleted (for indirect access) */ 1021 1022 /* for further details see the ACPI and PCI power management specification */ 1023 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 1024 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 1025 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 1026 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 1027 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 1028 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 1029 1030 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 1031 1032 struct snd_ctl_elem_id { 1033 unsigned int numid; /* numeric identifier, zero = invalid */ 1034 snd_ctl_elem_iface_t iface; /* interface identifier */ 1035 unsigned int device; /* device/client number */ 1036 unsigned int subdevice; /* subdevice (substream) number */ 1037 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 1038 unsigned int index; /* index of item */ 1039 }; 1040 1041 struct snd_ctl_elem_list { 1042 unsigned int offset; /* W: first element ID to get */ 1043 unsigned int space; /* W: count of element IDs to get */ 1044 unsigned int used; /* R: count of element IDs set */ 1045 unsigned int count; /* R: count of all elements */ 1046 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 1047 unsigned char reserved[50]; 1048 }; 1049 1050 struct snd_ctl_elem_info { 1051 struct snd_ctl_elem_id id; /* W: element ID */ 1052 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 1053 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 1054 unsigned int count; /* count of values */ 1055 __kernel_pid_t owner; /* owner's PID of this control */ 1056 union { 1057 struct { 1058 long min; /* R: minimum value */ 1059 long max; /* R: maximum value */ 1060 long step; /* R: step (0 variable) */ 1061 } integer; 1062 struct { 1063 long long min; /* R: minimum value */ 1064 long long max; /* R: maximum value */ 1065 long long step; /* R: step (0 variable) */ 1066 } integer64; 1067 struct { 1068 unsigned int items; /* R: number of items */ 1069 unsigned int item; /* W: item number */ 1070 char name[64]; /* R: value name */ 1071 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 1072 unsigned int names_length; 1073 } enumerated; 1074 unsigned char reserved[128]; 1075 } value; 1076 unsigned char reserved[64]; 1077 }; 1078 1079 struct snd_ctl_elem_value { 1080 struct snd_ctl_elem_id id; /* W: element ID */ 1081 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 1082 union { 1083 union { 1084 long value[128]; 1085 long *value_ptr; /* obsoleted */ 1086 } integer; 1087 union { 1088 long long value[64]; 1089 long long *value_ptr; /* obsoleted */ 1090 } integer64; 1091 union { 1092 unsigned int item[128]; 1093 unsigned int *item_ptr; /* obsoleted */ 1094 } enumerated; 1095 union { 1096 unsigned char data[512]; 1097 unsigned char *data_ptr; /* obsoleted */ 1098 } bytes; 1099 struct snd_aes_iec958 iec958; 1100 } value; /* RO */ 1101 unsigned char reserved[128]; 1102 }; 1103 1104 struct snd_ctl_tlv { 1105 unsigned int numid; /* control element numeric identification */ 1106 unsigned int length; /* in bytes aligned to 4 */ 1107 unsigned int tlv[0]; /* first TLV */ 1108 }; 1109 1110 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 1111 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 1112 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 1113 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 1114 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 1115 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 1116 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 1117 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 1118 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 1119 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 1120 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 1121 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 1122 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 1123 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 1124 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 1125 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 1126 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 1127 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 1128 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 1129 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 1130 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 1131 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 1132 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 1133 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 1134 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 1135 1136 /* 1137 * Read interface. 1138 */ 1139 1140 enum sndrv_ctl_event_type { 1141 SNDRV_CTL_EVENT_ELEM = 0, 1142 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 1143 }; 1144 1145 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 1146 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 1147 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 1148 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1149 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1150 1151 struct snd_ctl_event { 1152 int type; /* event type - SNDRV_CTL_EVENT_* */ 1153 union { 1154 struct { 1155 unsigned int mask; 1156 struct snd_ctl_elem_id id; 1157 } elem; 1158 unsigned char data8[60]; 1159 } data; 1160 }; 1161 1162 /* 1163 * Control names 1164 */ 1165 1166 #define SNDRV_CTL_NAME_NONE "" 1167 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1168 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1169 1170 #define SNDRV_CTL_NAME_IEC958_NONE "" 1171 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1172 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1173 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1174 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1175 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1176 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1177 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1178 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1179 1180 #endif /* _UAPI__SOUND_ASOUND_H */ 1181