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 #define AES_IEC958_STATUS_SIZE 24 60 61 struct snd_aes_iec958 { 62 unsigned char status[AES_IEC958_STATUS_SIZE]; /* AES/IEC958 channel status bits */ 63 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 64 unsigned char pad; /* nothing */ 65 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 66 }; 67 68 /**************************************************************************** 69 * * 70 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 71 * * 72 ****************************************************************************/ 73 74 struct snd_cea_861_aud_if { 75 unsigned char db1_ct_cc; /* coding type and channel count */ 76 unsigned char db2_sf_ss; /* sample frequency and size */ 77 unsigned char db3; /* not used, all zeros */ 78 unsigned char db4_ca; /* channel allocation code */ 79 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 80 }; 81 82 /**************************************************************************** 83 * * 84 * Section for driver hardware dependent interface - /dev/snd/hw? * 85 * * 86 ****************************************************************************/ 87 88 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 89 90 enum { 91 SNDRV_HWDEP_IFACE_OPL2 = 0, 92 SNDRV_HWDEP_IFACE_OPL3, 93 SNDRV_HWDEP_IFACE_OPL4, 94 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 95 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 96 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 97 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 98 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 99 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 100 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 101 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 102 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 103 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 104 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 105 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 106 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 107 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 108 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 109 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 110 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 111 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 112 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 113 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 114 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 115 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 116 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 117 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 118 119 /* Don't forget to change the following: */ 120 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE 121 }; 122 123 struct snd_hwdep_info { 124 unsigned int device; /* WR: device number */ 125 int card; /* R: card number */ 126 unsigned char id[64]; /* ID (user selectable) */ 127 unsigned char name[80]; /* hwdep name */ 128 int iface; /* hwdep interface */ 129 unsigned char reserved[64]; /* reserved for future */ 130 }; 131 132 /* generic DSP loader */ 133 struct snd_hwdep_dsp_status { 134 unsigned int version; /* R: driver-specific version */ 135 unsigned char id[32]; /* R: driver-specific ID string */ 136 unsigned int num_dsps; /* R: number of DSP images to transfer */ 137 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 138 unsigned int chip_ready; /* R: 1 = initialization finished */ 139 unsigned char reserved[16]; /* reserved for future use */ 140 }; 141 142 struct snd_hwdep_dsp_image { 143 unsigned int index; /* W: DSP index */ 144 unsigned char name[64]; /* W: ID (e.g. file name) */ 145 unsigned char __user *image; /* W: binary image */ 146 size_t length; /* W: size of image in bytes */ 147 unsigned long driver_data; /* W: driver-specific data */ 148 }; 149 150 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 151 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 152 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 153 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 154 155 /***************************************************************************** 156 * * 157 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 158 * * 159 *****************************************************************************/ 160 161 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15) 162 163 typedef unsigned long snd_pcm_uframes_t; 164 typedef signed long snd_pcm_sframes_t; 165 166 enum { 167 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 168 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 169 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 170 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 171 /* Don't forget to change the following: */ 172 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 173 }; 174 175 enum { 176 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 177 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 178 /* Don't forget to change the following: */ 179 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 180 }; 181 182 enum { 183 SNDRV_PCM_STREAM_PLAYBACK = 0, 184 SNDRV_PCM_STREAM_CAPTURE, 185 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 186 }; 187 188 typedef int __bitwise snd_pcm_access_t; 189 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 190 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 191 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 192 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 193 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 194 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 195 196 typedef int __bitwise snd_pcm_format_t; 197 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 198 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 199 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 200 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 201 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 202 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 203 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 204 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 205 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 206 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 207 /* 208 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the 209 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or 210 * `right-padding` sample which has less width than 32 bit. 211 */ 212 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 213 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 214 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 215 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 216 #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 */ 217 #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 */ 218 #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 */ 219 #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 */ 220 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 221 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 222 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 223 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 224 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 225 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 226 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 227 #define SNDRV_PCM_FORMAT_S20_LE ((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */ 228 #define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */ 229 #define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */ 230 #define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */ 231 /* gap in the numbering for a future standard linear format */ 232 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 233 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 234 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 235 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 236 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 237 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 238 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 239 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 240 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 241 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 242 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 243 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 244 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 245 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 246 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 247 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 248 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 249 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 250 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 251 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 252 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 253 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 254 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 255 #define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8 256 257 #ifdef SNDRV_LITTLE_ENDIAN 258 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 259 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 260 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 261 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 262 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 263 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 264 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 265 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 266 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 267 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE 268 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE 269 #endif 270 #ifdef SNDRV_BIG_ENDIAN 271 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 272 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 273 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 274 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 275 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 276 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 277 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 278 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 279 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 280 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE 281 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE 282 #endif 283 284 typedef int __bitwise snd_pcm_subformat_t; 285 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 286 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 287 288 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 289 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 290 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 291 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 292 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 293 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 294 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 295 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 296 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 297 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 298 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 299 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 300 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 301 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 302 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 303 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 304 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 305 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 306 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 307 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 308 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 309 #define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */ 310 #define SNDRV_PCM_INFO_NO_REWINDS 0x20000000 /* hardware can only support monotonic changes of appl_ptr */ 311 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 312 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 313 314 #if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__ 315 #define __SND_STRUCT_TIME64 316 #endif 317 318 typedef int __bitwise snd_pcm_state_t; 319 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 320 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 321 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 322 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 323 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 324 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 325 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 326 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 327 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 328 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 329 330 enum { 331 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 332 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000, 333 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000, 334 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000, 335 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000, 336 #ifdef __SND_STRUCT_TIME64 337 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW, 338 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW, 339 #else 340 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD, 341 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD, 342 #endif 343 }; 344 345 union snd_pcm_sync_id { 346 unsigned char id[16]; 347 unsigned short id16[8]; 348 unsigned int id32[4]; 349 }; 350 351 struct snd_pcm_info { 352 unsigned int device; /* RO/WR (control): device number */ 353 unsigned int subdevice; /* RO/WR (control): subdevice number */ 354 int stream; /* RO/WR (control): stream direction */ 355 int card; /* R: card number */ 356 unsigned char id[64]; /* ID (user selectable) */ 357 unsigned char name[80]; /* name of this device */ 358 unsigned char subname[32]; /* subdevice name */ 359 int dev_class; /* SNDRV_PCM_CLASS_* */ 360 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 361 unsigned int subdevices_count; 362 unsigned int subdevices_avail; 363 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 364 unsigned char reserved[64]; /* reserved for future... */ 365 }; 366 367 typedef int snd_pcm_hw_param_t; 368 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 369 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 370 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 371 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 372 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 373 374 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 375 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 376 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 377 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 378 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 379 * interrupts in us 380 */ 381 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 382 * interrupts 383 */ 384 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 385 * interrupts 386 */ 387 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 388 * buffer 389 */ 390 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 391 * in us 392 */ 393 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 394 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 395 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 396 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 397 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 398 399 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 400 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 401 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 402 403 struct snd_interval { 404 unsigned int min, max; 405 unsigned int openmin:1, 406 openmax:1, 407 integer:1, 408 empty:1; 409 }; 410 411 #define SNDRV_MASK_MAX 256 412 413 struct snd_mask { 414 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 415 }; 416 417 struct snd_pcm_hw_params { 418 unsigned int flags; 419 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 420 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 421 struct snd_mask mres[5]; /* reserved masks */ 422 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 423 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 424 struct snd_interval ires[9]; /* reserved intervals */ 425 unsigned int rmask; /* W: requested masks */ 426 unsigned int cmask; /* R: changed masks */ 427 unsigned int info; /* R: Info flags for returned setup */ 428 unsigned int msbits; /* R: used most significant bits */ 429 unsigned int rate_num; /* R: rate numerator */ 430 unsigned int rate_den; /* R: rate denominator */ 431 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 432 unsigned char reserved[64]; /* reserved for future */ 433 }; 434 435 enum { 436 SNDRV_PCM_TSTAMP_NONE = 0, 437 SNDRV_PCM_TSTAMP_ENABLE, 438 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 439 }; 440 441 struct snd_pcm_sw_params { 442 int tstamp_mode; /* timestamp mode */ 443 unsigned int period_step; 444 unsigned int sleep_min; /* min ticks to sleep */ 445 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 446 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 447 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 448 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 449 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 450 snd_pcm_uframes_t silence_size; /* silence block size */ 451 snd_pcm_uframes_t boundary; /* pointers wrap point */ 452 unsigned int proto; /* protocol version */ 453 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 454 unsigned char reserved[56]; /* reserved for future */ 455 }; 456 457 struct snd_pcm_channel_info { 458 unsigned int channel; 459 __kernel_off_t offset; /* mmap offset */ 460 unsigned int first; /* offset to first sample in bits */ 461 unsigned int step; /* samples distance in bits */ 462 }; 463 464 enum { 465 /* 466 * first definition for backwards compatibility only, 467 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 468 */ 469 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 470 471 /* timestamp definitions */ 472 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 473 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 474 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 475 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 476 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 477 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 478 }; 479 480 #ifndef __KERNEL__ 481 /* explicit padding avoids incompatibility between i386 and x86-64 */ 482 typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad; 483 484 struct snd_pcm_status { 485 snd_pcm_state_t state; /* stream state */ 486 __time_pad pad1; /* align to timespec */ 487 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 488 struct timespec tstamp; /* reference timestamp */ 489 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 490 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 491 snd_pcm_sframes_t delay; /* current delay in frames */ 492 snd_pcm_uframes_t avail; /* number of frames available */ 493 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 494 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 495 snd_pcm_state_t suspended_state; /* suspended stream state */ 496 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 497 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 498 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 499 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 500 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 501 }; 502 #endif 503 504 /* 505 * For mmap operations, we need the 64-bit layout, both for compat mode, 506 * and for y2038 compatibility. For 64-bit applications, the two definitions 507 * are identical, so we keep the traditional version. 508 */ 509 #ifdef __SND_STRUCT_TIME64 510 #define __snd_pcm_mmap_status64 snd_pcm_mmap_status 511 #define __snd_pcm_mmap_control64 snd_pcm_mmap_control 512 #define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr 513 #ifdef __KERNEL__ 514 #define __snd_timespec64 __kernel_timespec 515 #else 516 #define __snd_timespec64 timespec 517 #endif 518 struct __snd_timespec { 519 __s32 tv_sec; 520 __s32 tv_nsec; 521 }; 522 #else 523 #define __snd_pcm_mmap_status snd_pcm_mmap_status 524 #define __snd_pcm_mmap_control snd_pcm_mmap_control 525 #define __snd_pcm_sync_ptr snd_pcm_sync_ptr 526 #define __snd_timespec timespec 527 struct __snd_timespec64 { 528 __s64 tv_sec; 529 __s64 tv_nsec; 530 }; 531 532 #endif 533 534 struct __snd_pcm_mmap_status { 535 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 536 int pad1; /* Needed for 64 bit alignment */ 537 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 538 struct __snd_timespec tstamp; /* Timestamp */ 539 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 540 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */ 541 }; 542 543 struct __snd_pcm_mmap_control { 544 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 545 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 546 }; 547 548 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 549 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 550 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 551 552 struct __snd_pcm_sync_ptr { 553 unsigned int flags; 554 union { 555 struct __snd_pcm_mmap_status status; 556 unsigned char reserved[64]; 557 } s; 558 union { 559 struct __snd_pcm_mmap_control control; 560 unsigned char reserved[64]; 561 } c; 562 }; 563 564 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) 565 typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 566 typedef char __pad_after_uframe[0]; 567 #endif 568 569 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) 570 typedef char __pad_before_uframe[0]; 571 typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 572 #endif 573 574 struct __snd_pcm_mmap_status64 { 575 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 576 __u32 pad1; /* Needed for 64 bit alignment */ 577 __pad_before_uframe __pad1; 578 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 579 __pad_after_uframe __pad2; 580 struct __snd_timespec64 tstamp; /* Timestamp */ 581 snd_pcm_state_t suspended_state;/* RO: suspended stream state */ 582 __u32 pad3; /* Needed for 64 bit alignment */ 583 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */ 584 }; 585 586 struct __snd_pcm_mmap_control64 { 587 __pad_before_uframe __pad1; 588 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 589 __pad_before_uframe __pad2; 590 591 __pad_before_uframe __pad3; 592 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 593 __pad_after_uframe __pad4; 594 }; 595 596 struct __snd_pcm_sync_ptr64 { 597 __u32 flags; 598 __u32 pad1; 599 union { 600 struct __snd_pcm_mmap_status64 status; 601 unsigned char reserved[64]; 602 } s; 603 union { 604 struct __snd_pcm_mmap_control64 control; 605 unsigned char reserved[64]; 606 } c; 607 }; 608 609 struct snd_xferi { 610 snd_pcm_sframes_t result; 611 void __user *buf; 612 snd_pcm_uframes_t frames; 613 }; 614 615 struct snd_xfern { 616 snd_pcm_sframes_t result; 617 void __user * __user *bufs; 618 snd_pcm_uframes_t frames; 619 }; 620 621 enum { 622 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 623 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 624 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 625 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 626 }; 627 628 /* channel positions */ 629 enum { 630 SNDRV_CHMAP_UNKNOWN = 0, 631 SNDRV_CHMAP_NA, /* N/A, silent */ 632 SNDRV_CHMAP_MONO, /* mono stream */ 633 /* this follows the alsa-lib mixer channel value + 3 */ 634 SNDRV_CHMAP_FL, /* front left */ 635 SNDRV_CHMAP_FR, /* front right */ 636 SNDRV_CHMAP_RL, /* rear left */ 637 SNDRV_CHMAP_RR, /* rear right */ 638 SNDRV_CHMAP_FC, /* front center */ 639 SNDRV_CHMAP_LFE, /* LFE */ 640 SNDRV_CHMAP_SL, /* side left */ 641 SNDRV_CHMAP_SR, /* side right */ 642 SNDRV_CHMAP_RC, /* rear center */ 643 /* new definitions */ 644 SNDRV_CHMAP_FLC, /* front left center */ 645 SNDRV_CHMAP_FRC, /* front right center */ 646 SNDRV_CHMAP_RLC, /* rear left center */ 647 SNDRV_CHMAP_RRC, /* rear right center */ 648 SNDRV_CHMAP_FLW, /* front left wide */ 649 SNDRV_CHMAP_FRW, /* front right wide */ 650 SNDRV_CHMAP_FLH, /* front left high */ 651 SNDRV_CHMAP_FCH, /* front center high */ 652 SNDRV_CHMAP_FRH, /* front right high */ 653 SNDRV_CHMAP_TC, /* top center */ 654 SNDRV_CHMAP_TFL, /* top front left */ 655 SNDRV_CHMAP_TFR, /* top front right */ 656 SNDRV_CHMAP_TFC, /* top front center */ 657 SNDRV_CHMAP_TRL, /* top rear left */ 658 SNDRV_CHMAP_TRR, /* top rear right */ 659 SNDRV_CHMAP_TRC, /* top rear center */ 660 /* new definitions for UAC2 */ 661 SNDRV_CHMAP_TFLC, /* top front left center */ 662 SNDRV_CHMAP_TFRC, /* top front right center */ 663 SNDRV_CHMAP_TSL, /* top side left */ 664 SNDRV_CHMAP_TSR, /* top side right */ 665 SNDRV_CHMAP_LLFE, /* left LFE */ 666 SNDRV_CHMAP_RLFE, /* right LFE */ 667 SNDRV_CHMAP_BC, /* bottom center */ 668 SNDRV_CHMAP_BLC, /* bottom left center */ 669 SNDRV_CHMAP_BRC, /* bottom right center */ 670 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 671 }; 672 673 #define SNDRV_CHMAP_POSITION_MASK 0xffff 674 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 675 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 676 677 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 678 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 679 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 680 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 681 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 682 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 683 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 684 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 685 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 686 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 687 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 688 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 689 #define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr) 690 #define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64) 691 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 692 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 693 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 694 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 695 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 696 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 697 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 698 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 699 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 700 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 701 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 702 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 703 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 704 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 705 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 706 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 707 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 708 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 709 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 710 711 /***************************************************************************** 712 * * 713 * MIDI v1.0 interface * 714 * * 715 *****************************************************************************/ 716 717 /* 718 * Raw MIDI section - /dev/snd/midi?? 719 */ 720 721 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2) 722 723 enum { 724 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 725 SNDRV_RAWMIDI_STREAM_INPUT, 726 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 727 }; 728 729 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 730 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 731 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 732 733 struct snd_rawmidi_info { 734 unsigned int device; /* RO/WR (control): device number */ 735 unsigned int subdevice; /* RO/WR (control): subdevice number */ 736 int stream; /* WR: stream */ 737 int card; /* R: card number */ 738 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 739 unsigned char id[64]; /* ID (user selectable) */ 740 unsigned char name[80]; /* name of device */ 741 unsigned char subname[32]; /* name of active or selected subdevice */ 742 unsigned int subdevices_count; 743 unsigned int subdevices_avail; 744 unsigned char reserved[64]; /* reserved for future use */ 745 }; 746 747 #define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0) 748 #define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0 749 #define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0) 750 #define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0) 751 #define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3) 752 #define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3 753 #define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3) 754 #define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3) 755 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3) 756 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3) 757 758 #define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16 759 760 struct snd_rawmidi_framing_tstamp { 761 /* For now, frame_type is always 0. Midi 2.0 is expected to add new 762 * types here. Applications are expected to skip unknown frame types. 763 */ 764 __u8 frame_type; 765 __u8 length; /* number of valid bytes in data field */ 766 __u8 reserved[2]; 767 __u32 tv_nsec; /* nanoseconds */ 768 __u64 tv_sec; /* seconds */ 769 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH]; 770 } __packed; 771 772 struct snd_rawmidi_params { 773 int stream; 774 size_t buffer_size; /* queue size in bytes */ 775 size_t avail_min; /* minimum avail bytes for wakeup */ 776 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 777 unsigned int mode; /* For input data only, frame incoming data */ 778 unsigned char reserved[12]; /* reserved for future use */ 779 }; 780 781 #ifndef __KERNEL__ 782 struct snd_rawmidi_status { 783 int stream; 784 __time_pad pad1; 785 struct timespec tstamp; /* Timestamp */ 786 size_t avail; /* available bytes */ 787 size_t xruns; /* count of overruns since last status (in bytes) */ 788 unsigned char reserved[16]; /* reserved for future use */ 789 }; 790 #endif 791 792 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 793 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 794 #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) 795 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 796 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 797 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 798 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 799 800 /* 801 * Timer section - /dev/snd/timer 802 */ 803 804 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 805 806 enum { 807 SNDRV_TIMER_CLASS_NONE = -1, 808 SNDRV_TIMER_CLASS_SLAVE = 0, 809 SNDRV_TIMER_CLASS_GLOBAL, 810 SNDRV_TIMER_CLASS_CARD, 811 SNDRV_TIMER_CLASS_PCM, 812 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 813 }; 814 815 /* slave timer classes */ 816 enum { 817 SNDRV_TIMER_SCLASS_NONE = 0, 818 SNDRV_TIMER_SCLASS_APPLICATION, 819 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 820 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 821 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 822 }; 823 824 /* global timers (device member) */ 825 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 826 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 827 #define SNDRV_TIMER_GLOBAL_HPET 2 828 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 829 830 /* info flags */ 831 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 832 833 struct snd_timer_id { 834 int dev_class; 835 int dev_sclass; 836 int card; 837 int device; 838 int subdevice; 839 }; 840 841 struct snd_timer_ginfo { 842 struct snd_timer_id tid; /* requested timer ID */ 843 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 844 int card; /* card number */ 845 unsigned char id[64]; /* timer identification */ 846 unsigned char name[80]; /* timer name */ 847 unsigned long reserved0; /* reserved for future use */ 848 unsigned long resolution; /* average period resolution in ns */ 849 unsigned long resolution_min; /* minimal period resolution in ns */ 850 unsigned long resolution_max; /* maximal period resolution in ns */ 851 unsigned int clients; /* active timer clients */ 852 unsigned char reserved[32]; 853 }; 854 855 struct snd_timer_gparams { 856 struct snd_timer_id tid; /* requested timer ID */ 857 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 858 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 859 unsigned char reserved[32]; 860 }; 861 862 struct snd_timer_gstatus { 863 struct snd_timer_id tid; /* requested timer ID */ 864 unsigned long resolution; /* current period resolution in ns */ 865 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 866 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 867 unsigned char reserved[32]; 868 }; 869 870 struct snd_timer_select { 871 struct snd_timer_id id; /* bind to timer ID */ 872 unsigned char reserved[32]; /* reserved */ 873 }; 874 875 struct snd_timer_info { 876 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 877 int card; /* card number */ 878 unsigned char id[64]; /* timer identificator */ 879 unsigned char name[80]; /* timer name */ 880 unsigned long reserved0; /* reserved for future use */ 881 unsigned long resolution; /* average period resolution in ns */ 882 unsigned char reserved[64]; /* reserved */ 883 }; 884 885 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 886 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 887 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 888 889 struct snd_timer_params { 890 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */ 891 unsigned int ticks; /* requested resolution in ticks */ 892 unsigned int queue_size; /* total size of queue (32-1024) */ 893 unsigned int reserved0; /* reserved, was: failure locations */ 894 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 895 unsigned char reserved[60]; /* reserved */ 896 }; 897 898 #ifndef __KERNEL__ 899 struct snd_timer_status { 900 struct timespec tstamp; /* Timestamp - last update */ 901 unsigned int resolution; /* current period resolution in ns */ 902 unsigned int lost; /* counter of master tick lost */ 903 unsigned int overrun; /* count of read queue overruns */ 904 unsigned int queue; /* used queue size */ 905 unsigned char reserved[64]; /* reserved */ 906 }; 907 #endif 908 909 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 910 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 911 #define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int) 912 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 913 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 914 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 915 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 916 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 917 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 918 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 919 /* The following four ioctls are changed since 1.0.9 due to confliction */ 920 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 921 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 922 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 923 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 924 #define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int) 925 926 #if __BITS_PER_LONG == 64 927 #define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD 928 #else 929 #define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \ 930 SNDRV_TIMER_IOCTL_TREAD_OLD : \ 931 SNDRV_TIMER_IOCTL_TREAD64) 932 #endif 933 934 struct snd_timer_read { 935 unsigned int resolution; 936 unsigned int ticks; 937 }; 938 939 enum { 940 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 941 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 942 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 943 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 944 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 945 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 946 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 947 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 948 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 949 /* master timer events for slave timer instances */ 950 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 951 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 952 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 953 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 954 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 955 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 956 }; 957 958 #ifndef __KERNEL__ 959 struct snd_timer_tread { 960 int event; 961 __time_pad pad1; 962 struct timespec tstamp; 963 unsigned int val; 964 __time_pad pad2; 965 }; 966 #endif 967 968 /**************************************************************************** 969 * * 970 * Section for driver control interface - /dev/snd/control? * 971 * * 972 ****************************************************************************/ 973 974 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8) 975 976 struct snd_ctl_card_info { 977 int card; /* card number */ 978 int pad; /* reserved for future (was type) */ 979 unsigned char id[16]; /* ID of card (user selectable) */ 980 unsigned char driver[16]; /* Driver name */ 981 unsigned char name[32]; /* Short name of soundcard */ 982 unsigned char longname[80]; /* name + info text about soundcard */ 983 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 984 unsigned char mixername[80]; /* visual mixer identification */ 985 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 986 }; 987 988 typedef int __bitwise snd_ctl_elem_type_t; 989 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 990 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 991 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 992 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 993 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 994 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 995 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 996 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 997 998 typedef int __bitwise snd_ctl_elem_iface_t; 999 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 1000 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 1001 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 1002 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 1003 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 1004 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 1005 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 1006 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 1007 1008 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 1009 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 1010 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 1011 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 1012 /* (1 << 3) is unused. */ 1013 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 1014 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 1015 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 1016 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 1017 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 1018 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 1019 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 1020 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 1021 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 1022 /* bits 30 and 31 are obsoleted (for indirect access) */ 1023 1024 /* for further details see the ACPI and PCI power management specification */ 1025 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 1026 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 1027 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 1028 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 1029 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 1030 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 1031 1032 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 1033 1034 struct snd_ctl_elem_id { 1035 unsigned int numid; /* numeric identifier, zero = invalid */ 1036 snd_ctl_elem_iface_t iface; /* interface identifier */ 1037 unsigned int device; /* device/client number */ 1038 unsigned int subdevice; /* subdevice (substream) number */ 1039 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 1040 unsigned int index; /* index of item */ 1041 }; 1042 1043 struct snd_ctl_elem_list { 1044 unsigned int offset; /* W: first element ID to get */ 1045 unsigned int space; /* W: count of element IDs to get */ 1046 unsigned int used; /* R: count of element IDs set */ 1047 unsigned int count; /* R: count of all elements */ 1048 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 1049 unsigned char reserved[50]; 1050 }; 1051 1052 struct snd_ctl_elem_info { 1053 struct snd_ctl_elem_id id; /* W: element ID */ 1054 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 1055 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 1056 unsigned int count; /* count of values */ 1057 __kernel_pid_t owner; /* owner's PID of this control */ 1058 union { 1059 struct { 1060 long min; /* R: minimum value */ 1061 long max; /* R: maximum value */ 1062 long step; /* R: step (0 variable) */ 1063 } integer; 1064 struct { 1065 long long min; /* R: minimum value */ 1066 long long max; /* R: maximum value */ 1067 long long step; /* R: step (0 variable) */ 1068 } integer64; 1069 struct { 1070 unsigned int items; /* R: number of items */ 1071 unsigned int item; /* W: item number */ 1072 char name[64]; /* R: value name */ 1073 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 1074 unsigned int names_length; 1075 } enumerated; 1076 unsigned char reserved[128]; 1077 } value; 1078 unsigned char reserved[64]; 1079 }; 1080 1081 struct snd_ctl_elem_value { 1082 struct snd_ctl_elem_id id; /* W: element ID */ 1083 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 1084 union { 1085 union { 1086 long value[128]; 1087 long *value_ptr; /* obsoleted */ 1088 } integer; 1089 union { 1090 long long value[64]; 1091 long long *value_ptr; /* obsoleted */ 1092 } integer64; 1093 union { 1094 unsigned int item[128]; 1095 unsigned int *item_ptr; /* obsoleted */ 1096 } enumerated; 1097 union { 1098 unsigned char data[512]; 1099 unsigned char *data_ptr; /* obsoleted */ 1100 } bytes; 1101 struct snd_aes_iec958 iec958; 1102 } value; /* RO */ 1103 unsigned char reserved[128]; 1104 }; 1105 1106 struct snd_ctl_tlv { 1107 unsigned int numid; /* control element numeric identification */ 1108 unsigned int length; /* in bytes aligned to 4 */ 1109 unsigned int tlv[]; /* first TLV */ 1110 }; 1111 1112 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 1113 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 1114 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 1115 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 1116 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 1117 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 1118 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 1119 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 1120 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 1121 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 1122 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 1123 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 1124 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 1125 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 1126 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 1127 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 1128 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 1129 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 1130 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 1131 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 1132 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 1133 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 1134 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 1135 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 1136 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 1137 1138 /* 1139 * Read interface. 1140 */ 1141 1142 enum sndrv_ctl_event_type { 1143 SNDRV_CTL_EVENT_ELEM = 0, 1144 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 1145 }; 1146 1147 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 1148 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 1149 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 1150 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1151 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1152 1153 struct snd_ctl_event { 1154 int type; /* event type - SNDRV_CTL_EVENT_* */ 1155 union { 1156 struct { 1157 unsigned int mask; 1158 struct snd_ctl_elem_id id; 1159 } elem; 1160 unsigned char data8[60]; 1161 } data; 1162 }; 1163 1164 /* 1165 * Control names 1166 */ 1167 1168 #define SNDRV_CTL_NAME_NONE "" 1169 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1170 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1171 1172 #define SNDRV_CTL_NAME_IEC958_NONE "" 1173 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1174 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1175 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1176 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1177 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1178 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1179 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1180 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1181 1182 #endif /* _UAPI__SOUND_ASOUND_H */ 1183