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