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