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 #ifndef _UAPI__SOUND_ASOUND_H 9 #define _UAPI__SOUND_ASOUND_H 10 11 #if defined(__KERNEL__) || defined(__linux__) 12 #include <linux/types.h> 13 #include <asm/byteorder.h> 14 #else 15 #include <endian.h> 16 #include <sys/ioctl.h> 17 #endif 18 19 #ifndef __KERNEL__ 20 #include <stdlib.h> 21 #include <time.h> 22 #endif 23 24 /* 25 * protocol version 26 */ 27 28 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 29 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 30 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 31 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 32 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 33 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 34 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 35 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 36 37 /**************************************************************************** 38 * * 39 * Digital audio interface * 40 * * 41 ****************************************************************************/ 42 43 #define AES_IEC958_STATUS_SIZE 24 44 45 struct snd_aes_iec958 { 46 unsigned char status[AES_IEC958_STATUS_SIZE]; /* AES/IEC958 channel status bits */ 47 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 48 unsigned char pad; /* nothing */ 49 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 50 }; 51 52 /**************************************************************************** 53 * * 54 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 55 * * 56 ****************************************************************************/ 57 58 struct snd_cea_861_aud_if { 59 unsigned char db1_ct_cc; /* coding type and channel count */ 60 unsigned char db2_sf_ss; /* sample frequency and size */ 61 unsigned char db3; /* not used, all zeros */ 62 unsigned char db4_ca; /* channel allocation code */ 63 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 64 }; 65 66 /**************************************************************************** 67 * * 68 * Section for driver hardware dependent interface - /dev/snd/hw? * 69 * * 70 ****************************************************************************/ 71 72 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 73 74 enum { 75 SNDRV_HWDEP_IFACE_OPL2 = 0, 76 SNDRV_HWDEP_IFACE_OPL3, 77 SNDRV_HWDEP_IFACE_OPL4, 78 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 79 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 80 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 81 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 82 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 83 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 84 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 85 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 86 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 87 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 88 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 89 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 90 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 91 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 92 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 93 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 94 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 95 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 96 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 97 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 98 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 99 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 100 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 101 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 102 103 /* Don't forget to change the following: */ 104 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE 105 }; 106 107 struct snd_hwdep_info { 108 unsigned int device; /* WR: device number */ 109 int card; /* R: card number */ 110 unsigned char id[64]; /* ID (user selectable) */ 111 unsigned char name[80]; /* hwdep name */ 112 int iface; /* hwdep interface */ 113 unsigned char reserved[64]; /* reserved for future */ 114 }; 115 116 /* generic DSP loader */ 117 struct snd_hwdep_dsp_status { 118 unsigned int version; /* R: driver-specific version */ 119 unsigned char id[32]; /* R: driver-specific ID string */ 120 unsigned int num_dsps; /* R: number of DSP images to transfer */ 121 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 122 unsigned int chip_ready; /* R: 1 = initialization finished */ 123 unsigned char reserved[16]; /* reserved for future use */ 124 }; 125 126 struct snd_hwdep_dsp_image { 127 unsigned int index; /* W: DSP index */ 128 unsigned char name[64]; /* W: ID (e.g. file name) */ 129 unsigned char __user *image; /* W: binary image */ 130 size_t length; /* W: size of image in bytes */ 131 unsigned long driver_data; /* W: driver-specific data */ 132 }; 133 134 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 135 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 136 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 137 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 138 139 /***************************************************************************** 140 * * 141 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 142 * * 143 *****************************************************************************/ 144 145 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15) 146 147 typedef unsigned long snd_pcm_uframes_t; 148 typedef signed long snd_pcm_sframes_t; 149 150 enum { 151 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 152 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 153 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 154 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 155 /* Don't forget to change the following: */ 156 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 157 }; 158 159 enum { 160 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 161 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 162 /* Don't forget to change the following: */ 163 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 164 }; 165 166 enum { 167 SNDRV_PCM_STREAM_PLAYBACK = 0, 168 SNDRV_PCM_STREAM_CAPTURE, 169 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 170 }; 171 172 typedef int __bitwise snd_pcm_access_t; 173 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */ 174 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */ 175 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */ 176 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */ 177 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */ 178 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 179 180 typedef int __bitwise snd_pcm_format_t; 181 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0) 182 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1) 183 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2) 184 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3) 185 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4) 186 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5) 187 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */ 188 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */ 189 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */ 190 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */ 191 /* 192 * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the 193 * available bit count in most significant bit. It's for the case of so-called 'left-justified' or 194 * `right-padding` sample which has less width than 32 bit. 195 */ 196 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10) 197 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11) 198 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12) 199 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13) 200 #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 */ 201 #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 */ 202 #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 */ 203 #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 */ 204 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 205 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 206 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20) 207 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21) 208 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22) 209 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23) 210 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24) 211 #define SNDRV_PCM_FORMAT_S20_LE ((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */ 212 #define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */ 213 #define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */ 214 #define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */ 215 /* gap in the numbering for a future standard linear format */ 216 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31) 217 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */ 218 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */ 219 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */ 220 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */ 221 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */ 222 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */ 223 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */ 224 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */ 225 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */ 226 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */ 227 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */ 228 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */ 229 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 230 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 231 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 232 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 233 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 234 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 235 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 236 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 237 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 238 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 239 #define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8 240 241 #ifdef SNDRV_LITTLE_ENDIAN 242 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 243 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 244 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 245 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 246 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 247 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 248 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 249 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 250 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 251 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE 252 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE 253 #endif 254 #ifdef SNDRV_BIG_ENDIAN 255 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 256 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 257 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 258 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 259 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 260 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 261 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 262 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 263 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 264 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE 265 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE 266 #endif 267 268 typedef int __bitwise snd_pcm_subformat_t; 269 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0) 270 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 271 272 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 273 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 274 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 275 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 276 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 277 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 278 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 279 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 280 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 281 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 282 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 283 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 284 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 285 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 286 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 287 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 288 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 289 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 290 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 291 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 292 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 293 #define SNDRV_PCM_INFO_EXPLICIT_SYNC 0x10000000 /* needs explicit sync of pointers and data */ 294 #define SNDRV_PCM_INFO_NO_REWINDS 0x20000000 /* hardware can only support monotonic changes of appl_ptr */ 295 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 296 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 297 298 #if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__ 299 #define __SND_STRUCT_TIME64 300 #endif 301 302 typedef int __bitwise snd_pcm_state_t; 303 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */ 304 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */ 305 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */ 306 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */ 307 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */ 308 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */ 309 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */ 310 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */ 311 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */ 312 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 313 314 enum { 315 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 316 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000, 317 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000, 318 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000, 319 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000, 320 #ifdef __SND_STRUCT_TIME64 321 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW, 322 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW, 323 #else 324 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD, 325 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD, 326 #endif 327 }; 328 329 union snd_pcm_sync_id { 330 unsigned char id[16]; 331 unsigned short id16[8]; 332 unsigned int id32[4]; 333 }; 334 335 struct snd_pcm_info { 336 unsigned int device; /* RO/WR (control): device number */ 337 unsigned int subdevice; /* RO/WR (control): subdevice number */ 338 int stream; /* RO/WR (control): stream direction */ 339 int card; /* R: card number */ 340 unsigned char id[64]; /* ID (user selectable) */ 341 unsigned char name[80]; /* name of this device */ 342 unsigned char subname[32]; /* subdevice name */ 343 int dev_class; /* SNDRV_PCM_CLASS_* */ 344 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 345 unsigned int subdevices_count; 346 unsigned int subdevices_avail; 347 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 348 unsigned char reserved[64]; /* reserved for future... */ 349 }; 350 351 typedef int snd_pcm_hw_param_t; 352 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 353 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 354 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 355 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 356 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 357 358 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 359 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 360 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 361 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 362 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 363 * interrupts in us 364 */ 365 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 366 * interrupts 367 */ 368 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 369 * interrupts 370 */ 371 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 372 * buffer 373 */ 374 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 375 * in us 376 */ 377 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 378 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 379 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 380 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 381 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 382 383 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 384 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 385 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 386 387 struct snd_interval { 388 unsigned int min, max; 389 unsigned int openmin:1, 390 openmax:1, 391 integer:1, 392 empty:1; 393 }; 394 395 #define SNDRV_MASK_MAX 256 396 397 struct snd_mask { 398 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 399 }; 400 401 struct snd_pcm_hw_params { 402 unsigned int flags; 403 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 404 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 405 struct snd_mask mres[5]; /* reserved masks */ 406 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 407 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 408 struct snd_interval ires[9]; /* reserved intervals */ 409 unsigned int rmask; /* W: requested masks */ 410 unsigned int cmask; /* R: changed masks */ 411 unsigned int info; /* R: Info flags for returned setup */ 412 unsigned int msbits; /* R: used most significant bits */ 413 unsigned int rate_num; /* R: rate numerator */ 414 unsigned int rate_den; /* R: rate denominator */ 415 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 416 unsigned char reserved[64]; /* reserved for future */ 417 }; 418 419 enum { 420 SNDRV_PCM_TSTAMP_NONE = 0, 421 SNDRV_PCM_TSTAMP_ENABLE, 422 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 423 }; 424 425 struct snd_pcm_sw_params { 426 int tstamp_mode; /* timestamp mode */ 427 unsigned int period_step; 428 unsigned int sleep_min; /* min ticks to sleep */ 429 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 430 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 431 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 432 /* 433 * The following two thresholds alleviate playback buffer underruns; when 434 * hw_avail drops below the threshold, the respective action is triggered: 435 */ 436 snd_pcm_uframes_t stop_threshold; /* - stop playback */ 437 snd_pcm_uframes_t silence_threshold; /* - pre-fill buffer with silence */ 438 snd_pcm_uframes_t silence_size; /* max size of silence pre-fill; when >= boundary, 439 * fill played area with silence immediately */ 440 snd_pcm_uframes_t boundary; /* pointers wrap point */ 441 unsigned int proto; /* protocol version */ 442 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 443 unsigned char reserved[56]; /* reserved for future */ 444 }; 445 446 struct snd_pcm_channel_info { 447 unsigned int channel; 448 __kernel_off_t offset; /* mmap offset */ 449 unsigned int first; /* offset to first sample in bits */ 450 unsigned int step; /* samples distance in bits */ 451 }; 452 453 enum { 454 /* 455 * first definition for backwards compatibility only, 456 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 457 */ 458 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 459 460 /* timestamp definitions */ 461 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 462 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 463 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 464 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 465 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 466 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 467 }; 468 469 #ifndef __KERNEL__ 470 /* explicit padding avoids incompatibility between i386 and x86-64 */ 471 typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad; 472 473 struct snd_pcm_status { 474 snd_pcm_state_t state; /* stream state */ 475 __time_pad pad1; /* align to timespec */ 476 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 477 struct timespec tstamp; /* reference timestamp */ 478 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 479 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 480 snd_pcm_sframes_t delay; /* current delay in frames */ 481 snd_pcm_uframes_t avail; /* number of frames available */ 482 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 483 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 484 snd_pcm_state_t suspended_state; /* suspended stream state */ 485 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 486 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 487 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 488 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 489 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 490 }; 491 #endif 492 493 /* 494 * For mmap operations, we need the 64-bit layout, both for compat mode, 495 * and for y2038 compatibility. For 64-bit applications, the two definitions 496 * are identical, so we keep the traditional version. 497 */ 498 #ifdef __SND_STRUCT_TIME64 499 #define __snd_pcm_mmap_status64 snd_pcm_mmap_status 500 #define __snd_pcm_mmap_control64 snd_pcm_mmap_control 501 #define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr 502 #ifdef __KERNEL__ 503 #define __snd_timespec64 __kernel_timespec 504 #else 505 #define __snd_timespec64 timespec 506 #endif 507 struct __snd_timespec { 508 __s32 tv_sec; 509 __s32 tv_nsec; 510 }; 511 #else 512 #define __snd_pcm_mmap_status snd_pcm_mmap_status 513 #define __snd_pcm_mmap_control snd_pcm_mmap_control 514 #define __snd_pcm_sync_ptr snd_pcm_sync_ptr 515 #define __snd_timespec timespec 516 struct __snd_timespec64 { 517 __s64 tv_sec; 518 __s64 tv_nsec; 519 }; 520 521 #endif 522 523 struct __snd_pcm_mmap_status { 524 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 525 int pad1; /* Needed for 64 bit alignment */ 526 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 527 struct __snd_timespec tstamp; /* Timestamp */ 528 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 529 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */ 530 }; 531 532 struct __snd_pcm_mmap_control { 533 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 534 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 535 }; 536 537 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 538 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 539 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 540 541 struct __snd_pcm_sync_ptr { 542 unsigned int flags; 543 union { 544 struct __snd_pcm_mmap_status status; 545 unsigned char reserved[64]; 546 } s; 547 union { 548 struct __snd_pcm_mmap_control control; 549 unsigned char reserved[64]; 550 } c; 551 }; 552 553 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) 554 typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 555 typedef char __pad_after_uframe[0]; 556 #endif 557 558 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) 559 typedef char __pad_before_uframe[0]; 560 typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 561 #endif 562 563 struct __snd_pcm_mmap_status64 { 564 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 565 __u32 pad1; /* Needed for 64 bit alignment */ 566 __pad_before_uframe __pad1; 567 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 568 __pad_after_uframe __pad2; 569 struct __snd_timespec64 tstamp; /* Timestamp */ 570 snd_pcm_state_t suspended_state;/* RO: suspended stream state */ 571 __u32 pad3; /* Needed for 64 bit alignment */ 572 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */ 573 }; 574 575 struct __snd_pcm_mmap_control64 { 576 __pad_before_uframe __pad1; 577 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 578 __pad_before_uframe __pad2; // This should be __pad_after_uframe, but binary 579 // backwards compatibility constraints prevent a fix. 580 581 __pad_before_uframe __pad3; 582 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 583 __pad_after_uframe __pad4; 584 }; 585 586 struct __snd_pcm_sync_ptr64 { 587 __u32 flags; 588 __u32 pad1; 589 union { 590 struct __snd_pcm_mmap_status64 status; 591 unsigned char reserved[64]; 592 } s; 593 union { 594 struct __snd_pcm_mmap_control64 control; 595 unsigned char reserved[64]; 596 } c; 597 }; 598 599 struct snd_xferi { 600 snd_pcm_sframes_t result; 601 void __user *buf; 602 snd_pcm_uframes_t frames; 603 }; 604 605 struct snd_xfern { 606 snd_pcm_sframes_t result; 607 void __user * __user *bufs; 608 snd_pcm_uframes_t frames; 609 }; 610 611 enum { 612 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 613 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 614 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 615 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 616 }; 617 618 /* channel positions */ 619 enum { 620 SNDRV_CHMAP_UNKNOWN = 0, 621 SNDRV_CHMAP_NA, /* N/A, silent */ 622 SNDRV_CHMAP_MONO, /* mono stream */ 623 /* this follows the alsa-lib mixer channel value + 3 */ 624 SNDRV_CHMAP_FL, /* front left */ 625 SNDRV_CHMAP_FR, /* front right */ 626 SNDRV_CHMAP_RL, /* rear left */ 627 SNDRV_CHMAP_RR, /* rear right */ 628 SNDRV_CHMAP_FC, /* front center */ 629 SNDRV_CHMAP_LFE, /* LFE */ 630 SNDRV_CHMAP_SL, /* side left */ 631 SNDRV_CHMAP_SR, /* side right */ 632 SNDRV_CHMAP_RC, /* rear center */ 633 /* new definitions */ 634 SNDRV_CHMAP_FLC, /* front left center */ 635 SNDRV_CHMAP_FRC, /* front right center */ 636 SNDRV_CHMAP_RLC, /* rear left center */ 637 SNDRV_CHMAP_RRC, /* rear right center */ 638 SNDRV_CHMAP_FLW, /* front left wide */ 639 SNDRV_CHMAP_FRW, /* front right wide */ 640 SNDRV_CHMAP_FLH, /* front left high */ 641 SNDRV_CHMAP_FCH, /* front center high */ 642 SNDRV_CHMAP_FRH, /* front right high */ 643 SNDRV_CHMAP_TC, /* top center */ 644 SNDRV_CHMAP_TFL, /* top front left */ 645 SNDRV_CHMAP_TFR, /* top front right */ 646 SNDRV_CHMAP_TFC, /* top front center */ 647 SNDRV_CHMAP_TRL, /* top rear left */ 648 SNDRV_CHMAP_TRR, /* top rear right */ 649 SNDRV_CHMAP_TRC, /* top rear center */ 650 /* new definitions for UAC2 */ 651 SNDRV_CHMAP_TFLC, /* top front left center */ 652 SNDRV_CHMAP_TFRC, /* top front right center */ 653 SNDRV_CHMAP_TSL, /* top side left */ 654 SNDRV_CHMAP_TSR, /* top side right */ 655 SNDRV_CHMAP_LLFE, /* left LFE */ 656 SNDRV_CHMAP_RLFE, /* right LFE */ 657 SNDRV_CHMAP_BC, /* bottom center */ 658 SNDRV_CHMAP_BLC, /* bottom left center */ 659 SNDRV_CHMAP_BRC, /* bottom right center */ 660 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 661 }; 662 663 #define SNDRV_CHMAP_POSITION_MASK 0xffff 664 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 665 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 666 667 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 668 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 669 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 670 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 671 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 672 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 673 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 674 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 675 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 676 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 677 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 678 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 679 #define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr) 680 #define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64) 681 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 682 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 683 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 684 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 685 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 686 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 687 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 688 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 689 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 690 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 691 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 692 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 693 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 694 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 695 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 696 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 697 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 698 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 699 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 700 701 /***************************************************************************** 702 * * 703 * MIDI v1.0 interface * 704 * * 705 *****************************************************************************/ 706 707 /* 708 * Raw MIDI section - /dev/snd/midi?? 709 */ 710 711 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 2) 712 713 enum { 714 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 715 SNDRV_RAWMIDI_STREAM_INPUT, 716 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 717 }; 718 719 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 720 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 721 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 722 723 struct snd_rawmidi_info { 724 unsigned int device; /* RO/WR (control): device number */ 725 unsigned int subdevice; /* RO/WR (control): subdevice number */ 726 int stream; /* WR: stream */ 727 int card; /* R: card number */ 728 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 729 unsigned char id[64]; /* ID (user selectable) */ 730 unsigned char name[80]; /* name of device */ 731 unsigned char subname[32]; /* name of active or selected subdevice */ 732 unsigned int subdevices_count; 733 unsigned int subdevices_avail; 734 unsigned char reserved[64]; /* reserved for future use */ 735 }; 736 737 #define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0) 738 #define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0 739 #define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0) 740 #define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0) 741 #define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3) 742 #define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3 743 #define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3) 744 #define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3) 745 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3) 746 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3) 747 748 #define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16 749 750 struct snd_rawmidi_framing_tstamp { 751 /* For now, frame_type is always 0. Midi 2.0 is expected to add new 752 * types here. Applications are expected to skip unknown frame types. 753 */ 754 __u8 frame_type; 755 __u8 length; /* number of valid bytes in data field */ 756 __u8 reserved[2]; 757 __u32 tv_nsec; /* nanoseconds */ 758 __u64 tv_sec; /* seconds */ 759 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH]; 760 } __packed; 761 762 struct snd_rawmidi_params { 763 int stream; 764 size_t buffer_size; /* queue size in bytes */ 765 size_t avail_min; /* minimum avail bytes for wakeup */ 766 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 767 unsigned int mode; /* For input data only, frame incoming data */ 768 unsigned char reserved[12]; /* reserved for future use */ 769 }; 770 771 #ifndef __KERNEL__ 772 struct snd_rawmidi_status { 773 int stream; 774 __time_pad pad1; 775 struct timespec tstamp; /* Timestamp */ 776 size_t avail; /* available bytes */ 777 size_t xruns; /* count of overruns since last status (in bytes) */ 778 unsigned char reserved[16]; /* reserved for future use */ 779 }; 780 #endif 781 782 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 783 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 784 #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) 785 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 786 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 787 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 788 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 789 790 /* 791 * Timer section - /dev/snd/timer 792 */ 793 794 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 795 796 enum { 797 SNDRV_TIMER_CLASS_NONE = -1, 798 SNDRV_TIMER_CLASS_SLAVE = 0, 799 SNDRV_TIMER_CLASS_GLOBAL, 800 SNDRV_TIMER_CLASS_CARD, 801 SNDRV_TIMER_CLASS_PCM, 802 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 803 }; 804 805 /* slave timer classes */ 806 enum { 807 SNDRV_TIMER_SCLASS_NONE = 0, 808 SNDRV_TIMER_SCLASS_APPLICATION, 809 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 810 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 811 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 812 }; 813 814 /* global timers (device member) */ 815 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 816 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 817 #define SNDRV_TIMER_GLOBAL_HPET 2 818 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 819 820 /* info flags */ 821 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 822 823 struct snd_timer_id { 824 int dev_class; 825 int dev_sclass; 826 int card; 827 int device; 828 int subdevice; 829 }; 830 831 struct snd_timer_ginfo { 832 struct snd_timer_id tid; /* requested timer ID */ 833 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 834 int card; /* card number */ 835 unsigned char id[64]; /* timer identification */ 836 unsigned char name[80]; /* timer name */ 837 unsigned long reserved0; /* reserved for future use */ 838 unsigned long resolution; /* average period resolution in ns */ 839 unsigned long resolution_min; /* minimal period resolution in ns */ 840 unsigned long resolution_max; /* maximal period resolution in ns */ 841 unsigned int clients; /* active timer clients */ 842 unsigned char reserved[32]; 843 }; 844 845 struct snd_timer_gparams { 846 struct snd_timer_id tid; /* requested timer ID */ 847 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 848 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 849 unsigned char reserved[32]; 850 }; 851 852 struct snd_timer_gstatus { 853 struct snd_timer_id tid; /* requested timer ID */ 854 unsigned long resolution; /* current period resolution in ns */ 855 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 856 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 857 unsigned char reserved[32]; 858 }; 859 860 struct snd_timer_select { 861 struct snd_timer_id id; /* bind to timer ID */ 862 unsigned char reserved[32]; /* reserved */ 863 }; 864 865 struct snd_timer_info { 866 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 867 int card; /* card number */ 868 unsigned char id[64]; /* timer identificator */ 869 unsigned char name[80]; /* timer name */ 870 unsigned long reserved0; /* reserved for future use */ 871 unsigned long resolution; /* average period resolution in ns */ 872 unsigned char reserved[64]; /* reserved */ 873 }; 874 875 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 876 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 877 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 878 879 struct snd_timer_params { 880 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */ 881 unsigned int ticks; /* requested resolution in ticks */ 882 unsigned int queue_size; /* total size of queue (32-1024) */ 883 unsigned int reserved0; /* reserved, was: failure locations */ 884 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 885 unsigned char reserved[60]; /* reserved */ 886 }; 887 888 #ifndef __KERNEL__ 889 struct snd_timer_status { 890 struct timespec tstamp; /* Timestamp - last update */ 891 unsigned int resolution; /* current period resolution in ns */ 892 unsigned int lost; /* counter of master tick lost */ 893 unsigned int overrun; /* count of read queue overruns */ 894 unsigned int queue; /* used queue size */ 895 unsigned char reserved[64]; /* reserved */ 896 }; 897 #endif 898 899 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 900 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 901 #define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int) 902 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 903 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 904 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 905 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 906 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 907 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 908 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 909 /* The following four ioctls are changed since 1.0.9 due to confliction */ 910 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 911 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 912 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 913 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 914 #define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int) 915 916 #if __BITS_PER_LONG == 64 917 #define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD 918 #else 919 #define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \ 920 SNDRV_TIMER_IOCTL_TREAD_OLD : \ 921 SNDRV_TIMER_IOCTL_TREAD64) 922 #endif 923 924 struct snd_timer_read { 925 unsigned int resolution; 926 unsigned int ticks; 927 }; 928 929 enum { 930 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 931 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 932 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 933 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 934 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 935 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 936 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 937 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 938 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 939 /* master timer events for slave timer instances */ 940 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 941 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 942 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 943 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 944 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 945 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 946 }; 947 948 #ifndef __KERNEL__ 949 struct snd_timer_tread { 950 int event; 951 __time_pad pad1; 952 struct timespec tstamp; 953 unsigned int val; 954 __time_pad pad2; 955 }; 956 #endif 957 958 /**************************************************************************** 959 * * 960 * Section for driver control interface - /dev/snd/control? * 961 * * 962 ****************************************************************************/ 963 964 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8) 965 966 struct snd_ctl_card_info { 967 int card; /* card number */ 968 int pad; /* reserved for future (was type) */ 969 unsigned char id[16]; /* ID of card (user selectable) */ 970 unsigned char driver[16]; /* Driver name */ 971 unsigned char name[32]; /* Short name of soundcard */ 972 unsigned char longname[80]; /* name + info text about soundcard */ 973 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 974 unsigned char mixername[80]; /* visual mixer identification */ 975 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 976 }; 977 978 typedef int __bitwise snd_ctl_elem_type_t; 979 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ 980 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ 981 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ 982 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */ 983 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */ 984 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 985 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 986 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 987 988 typedef int __bitwise snd_ctl_elem_iface_t; 989 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ 990 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 991 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 992 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */ 993 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */ 994 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */ 995 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6) /* sequencer client */ 996 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 997 998 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 999 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 1000 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 1001 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 1002 /* (1 << 3) is unused. */ 1003 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 1004 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 1005 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 1006 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 1007 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 1008 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 1009 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 1010 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 1011 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 1012 /* bits 30 and 31 are obsoleted (for indirect access) */ 1013 1014 /* for further details see the ACPI and PCI power management specification */ 1015 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 1016 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 1017 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 1018 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 1019 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 1020 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 1021 1022 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 1023 1024 struct snd_ctl_elem_id { 1025 unsigned int numid; /* numeric identifier, zero = invalid */ 1026 snd_ctl_elem_iface_t iface; /* interface identifier */ 1027 unsigned int device; /* device/client number */ 1028 unsigned int subdevice; /* subdevice (substream) number */ 1029 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 1030 unsigned int index; /* index of item */ 1031 }; 1032 1033 struct snd_ctl_elem_list { 1034 unsigned int offset; /* W: first element ID to get */ 1035 unsigned int space; /* W: count of element IDs to get */ 1036 unsigned int used; /* R: count of element IDs set */ 1037 unsigned int count; /* R: count of all elements */ 1038 struct snd_ctl_elem_id __user *pids; /* R: IDs */ 1039 unsigned char reserved[50]; 1040 }; 1041 1042 struct snd_ctl_elem_info { 1043 struct snd_ctl_elem_id id; /* W: element ID */ 1044 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 1045 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 1046 unsigned int count; /* count of values */ 1047 __kernel_pid_t owner; /* owner's PID of this control */ 1048 union { 1049 struct { 1050 long min; /* R: minimum value */ 1051 long max; /* R: maximum value */ 1052 long step; /* R: step (0 variable) */ 1053 } integer; 1054 struct { 1055 long long min; /* R: minimum value */ 1056 long long max; /* R: maximum value */ 1057 long long step; /* R: step (0 variable) */ 1058 } integer64; 1059 struct { 1060 unsigned int items; /* R: number of items */ 1061 unsigned int item; /* W: item number */ 1062 char name[64]; /* R: value name */ 1063 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 1064 unsigned int names_length; 1065 } enumerated; 1066 unsigned char reserved[128]; 1067 } value; 1068 unsigned char reserved[64]; 1069 }; 1070 1071 struct snd_ctl_elem_value { 1072 struct snd_ctl_elem_id id; /* W: element ID */ 1073 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 1074 union { 1075 union { 1076 long value[128]; 1077 long *value_ptr; /* obsoleted */ 1078 } integer; 1079 union { 1080 long long value[64]; 1081 long long *value_ptr; /* obsoleted */ 1082 } integer64; 1083 union { 1084 unsigned int item[128]; 1085 unsigned int *item_ptr; /* obsoleted */ 1086 } enumerated; 1087 union { 1088 unsigned char data[512]; 1089 unsigned char *data_ptr; /* obsoleted */ 1090 } bytes; 1091 struct snd_aes_iec958 iec958; 1092 } value; /* RO */ 1093 unsigned char reserved[128]; 1094 }; 1095 1096 struct snd_ctl_tlv { 1097 unsigned int numid; /* control element numeric identification */ 1098 unsigned int length; /* in bytes aligned to 4 */ 1099 unsigned int tlv[]; /* first TLV */ 1100 }; 1101 1102 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 1103 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 1104 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 1105 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 1106 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 1107 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 1108 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 1109 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 1110 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 1111 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 1112 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 1113 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 1114 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 1115 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 1116 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 1117 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 1118 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 1119 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 1120 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 1121 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 1122 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 1123 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 1124 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 1125 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 1126 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 1127 1128 /* 1129 * Read interface. 1130 */ 1131 1132 enum sndrv_ctl_event_type { 1133 SNDRV_CTL_EVENT_ELEM = 0, 1134 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 1135 }; 1136 1137 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 1138 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 1139 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 1140 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1141 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1142 1143 struct snd_ctl_event { 1144 int type; /* event type - SNDRV_CTL_EVENT_* */ 1145 union { 1146 struct { 1147 unsigned int mask; 1148 struct snd_ctl_elem_id id; 1149 } elem; 1150 unsigned char data8[60]; 1151 } data; 1152 }; 1153 1154 /* 1155 * Control names 1156 */ 1157 1158 #define SNDRV_CTL_NAME_NONE "" 1159 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1160 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1161 1162 #define SNDRV_CTL_NAME_IEC958_NONE "" 1163 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1164 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1165 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1166 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1167 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1168 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1169 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1170 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1171 1172 #endif /* _UAPI__SOUND_ASOUND_H */ 1173