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