1 /* 2 * Advanced Linux Sound Architecture - ALSA - Driver 3 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex (at) perex.cz>, 4 * Abramo Bagnara <abramo (at) alsa-project.org> 5 * 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 * 21 */ 22 23 #ifndef __SOUND_ASOUND_H 24 #define __SOUND_ASOUND_H 25 26 #if defined(__KERNEL__) || defined(__linux__) 27 #include <linux/types.h> 28 #else 29 #include <sys/ioctl.h> 30 #endif 31 32 #include <stdlib.h> 33 34 /* 35 * protocol version 36 */ 37 38 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 39 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 40 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 41 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 42 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 43 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 44 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 45 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 46 47 /**************************************************************************** 48 * * 49 * Digital audio interface * 50 * * 51 ****************************************************************************/ 52 53 struct snd_aes_iec958 { 54 unsigned char status[24]; /* AES/IEC958 channel status bits */ 55 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 56 unsigned char pad; /* nothing */ 57 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 58 }; 59 60 /**************************************************************************** 61 * * 62 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 63 * * 64 ****************************************************************************/ 65 66 struct snd_cea_861_aud_if { 67 unsigned char db1_ct_cc; /* coding type and channel count */ 68 unsigned char db2_sf_ss; /* sample frequency and size */ 69 unsigned char db3; /* not used, all zeros */ 70 unsigned char db4_ca; /* channel allocation code */ 71 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 72 }; 73 74 /**************************************************************************** 75 * * 76 * Section for driver hardware dependent interface - /dev/snd/hw? * 77 * * 78 ****************************************************************************/ 79 80 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 81 82 enum { 83 SNDRV_HWDEP_IFACE_OPL2 = 0, 84 SNDRV_HWDEP_IFACE_OPL3, 85 SNDRV_HWDEP_IFACE_OPL4, 86 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 87 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 88 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 89 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 90 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 91 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 92 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 93 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 94 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 95 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 96 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 97 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 98 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 99 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 100 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 101 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 102 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 103 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 104 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 105 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 106 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 107 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 108 SNDRV_HWDEP_IFACE_AUDIO_BE, /* Backend Audio Control */ 109 SNDRV_HWDEP_IFACE_AUDIO_CODEC, /* codec Audio Control */ 110 111 /* Don't forget to change the following: */ 112 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_AUDIO_CODEC 113 }; 114 115 struct snd_hwdep_info { 116 unsigned int device; /* WR: device number */ 117 int card; /* R: card number */ 118 unsigned char id[64]; /* ID (user selectable) */ 119 unsigned char name[80]; /* hwdep name */ 120 int iface; /* hwdep interface */ 121 unsigned char reserved[64]; /* reserved for future */ 122 }; 123 124 /* generic DSP loader */ 125 struct snd_hwdep_dsp_status { 126 unsigned int version; /* R: driver-specific version */ 127 unsigned char id[32]; /* R: driver-specific ID string */ 128 unsigned int num_dsps; /* R: number of DSP images to transfer */ 129 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 130 unsigned int chip_ready; /* R: 1 = initialization finished */ 131 unsigned char reserved[16]; /* reserved for future use */ 132 }; 133 134 struct snd_hwdep_dsp_image { 135 unsigned int index; /* W: DSP index */ 136 unsigned char name[64]; /* W: ID (e.g. file name) */ 137 unsigned char *image; /* W: binary image */ 138 size_t length; /* W: size of image in bytes */ 139 unsigned long driver_data; /* W: driver-specific data */ 140 }; 141 142 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 143 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 144 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 145 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 146 147 /***************************************************************************** 148 * * 149 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 150 * * 151 *****************************************************************************/ 152 153 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 13) 154 155 typedef unsigned long snd_pcm_uframes_t; 156 typedef signed long snd_pcm_sframes_t; 157 158 enum { 159 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 160 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 161 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 162 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 163 /* Don't forget to change the following: */ 164 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 165 }; 166 167 enum { 168 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 169 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 170 /* Don't forget to change the following: */ 171 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 172 }; 173 174 enum { 175 SNDRV_PCM_STREAM_PLAYBACK = 0, 176 SNDRV_PCM_STREAM_CAPTURE, 177 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 178 }; 179 180 typedef int __bitwise snd_pcm_access_t; 181 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */ 182 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */ 183 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */ 184 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */ 185 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */ 186 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 187 188 typedef int __bitwise snd_pcm_format_t; 189 #define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0) 190 #define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1) 191 #define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2) 192 #define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3) 193 #define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4) 194 #define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5) 195 #define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */ 196 #define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */ 197 #define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */ 198 #define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */ 199 #define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10) 200 #define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11) 201 #define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12) 202 #define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13) 203 #define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 204 #define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 205 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 206 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 207 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 208 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 209 #define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20) 210 #define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21) 211 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22) 212 #define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23) 213 #define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24) 214 #define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31) 215 #define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */ 216 #define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */ 217 #define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */ 218 #define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */ 219 #define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */ 220 #define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */ 221 #define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */ 222 #define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */ 223 #define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */ 224 #define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */ 225 #define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */ 226 #define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */ 227 #define SNDRV_PCM_FORMAT_G723_24 ((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 228 #define SNDRV_PCM_FORMAT_G723_24_1B ((snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 229 #define SNDRV_PCM_FORMAT_G723_40 ((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 230 #define SNDRV_PCM_FORMAT_G723_40_1B ((snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 231 #define SNDRV_PCM_FORMAT_DSD_U8 ((snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 232 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 233 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 234 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 235 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 236 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 237 238 #ifdef SNDRV_LITTLE_ENDIAN 239 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 240 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 241 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 242 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 243 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 244 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 245 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 246 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 247 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 248 #endif 249 #ifdef SNDRV_BIG_ENDIAN 250 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 251 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 252 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 253 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 254 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 255 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 256 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 257 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 258 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 259 #endif 260 261 typedef int __bitwise snd_pcm_subformat_t; 262 #define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0) 263 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD 264 265 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 266 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 267 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 268 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 269 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 270 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 271 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 272 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 273 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 274 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 275 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 276 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 277 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 278 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 279 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 280 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 281 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 282 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 283 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 284 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 285 286 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 287 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 288 289 290 291 typedef int __bitwise snd_pcm_state_t; 292 #define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */ 293 #define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */ 294 #define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */ 295 #define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */ 296 #define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */ 297 #define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */ 298 #define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */ 299 #define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */ 300 #define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */ 301 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 302 303 enum { 304 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 305 SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, 306 SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, 307 }; 308 309 union snd_pcm_sync_id { 310 unsigned char id[16]; 311 unsigned short id16[8]; 312 unsigned int id32[4]; 313 }; 314 315 struct snd_pcm_info { 316 unsigned int device; /* RO/WR (control): device number */ 317 unsigned int subdevice; /* RO/WR (control): subdevice number */ 318 int stream; /* RO/WR (control): stream direction */ 319 int card; /* R: card number */ 320 unsigned char id[64]; /* ID (user selectable) */ 321 unsigned char name[80]; /* name of this device */ 322 unsigned char subname[32]; /* subdevice name */ 323 int dev_class; /* SNDRV_PCM_CLASS_* */ 324 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 325 unsigned int subdevices_count; 326 unsigned int subdevices_avail; 327 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 328 unsigned char reserved[64]; /* reserved for future... */ 329 }; 330 331 typedef int snd_pcm_hw_param_t; 332 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 333 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 334 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 335 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 336 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 337 338 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 339 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 340 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 341 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 342 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 343 * interrupts in us 344 */ 345 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 346 * interrupts 347 */ 348 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 349 * interrupts 350 */ 351 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 352 * buffer 353 */ 354 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 355 * in us 356 */ 357 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 358 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 359 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 360 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 361 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 362 363 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 364 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 365 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 366 367 struct snd_interval { 368 unsigned int min, max; 369 unsigned int openmin:1, 370 openmax:1, 371 integer:1, 372 empty:1; 373 }; 374 375 #define SNDRV_MASK_MAX 256 376 377 struct snd_mask { 378 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 379 }; 380 381 struct snd_pcm_hw_params { 382 unsigned int flags; 383 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 384 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 385 struct snd_mask mres[5]; /* reserved masks */ 386 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 387 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 388 struct snd_interval ires[9]; /* reserved intervals */ 389 unsigned int rmask; /* W: requested masks */ 390 unsigned int cmask; /* R: changed masks */ 391 unsigned int info; /* R: Info flags for returned setup */ 392 unsigned int msbits; /* R: used most significant bits */ 393 unsigned int rate_num; /* R: rate numerator */ 394 unsigned int rate_den; /* R: rate denominator */ 395 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 396 unsigned char reserved[64]; /* reserved for future */ 397 }; 398 399 enum { 400 SNDRV_PCM_TSTAMP_NONE = 0, 401 SNDRV_PCM_TSTAMP_ENABLE, 402 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 403 }; 404 405 struct snd_pcm_sw_params { 406 int tstamp_mode; /* timestamp mode */ 407 unsigned int period_step; 408 unsigned int sleep_min; /* min ticks to sleep */ 409 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 410 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 411 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 412 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 413 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 414 snd_pcm_uframes_t silence_size; /* silence block size */ 415 snd_pcm_uframes_t boundary; /* pointers wrap point */ 416 unsigned int proto; /* protocol version */ 417 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 418 unsigned char reserved[56]; /* reserved for future */ 419 }; 420 421 struct snd_pcm_channel_info { 422 unsigned int channel; 423 __kernel_off_t offset; /* mmap offset */ 424 unsigned int first; /* offset to first sample in bits */ 425 unsigned int step; /* samples distance in bits */ 426 }; 427 428 enum { 429 /* 430 * first definition for backwards compatibility only, 431 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 432 */ 433 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 434 435 /* timestamp definitions */ 436 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 437 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 438 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 439 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 440 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 441 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 442 }; 443 444 struct snd_pcm_status { 445 snd_pcm_state_t state; /* stream state */ 446 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 447 struct timespec tstamp; /* reference timestamp */ 448 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 449 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 450 snd_pcm_sframes_t delay; /* current delay in frames */ 451 snd_pcm_uframes_t avail; /* number of frames available */ 452 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 453 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 454 snd_pcm_state_t suspended_state; /* suspended stream state */ 455 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 456 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 457 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 458 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 459 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 460 }; 461 462 struct snd_pcm_mmap_status { 463 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 464 int pad1; /* Needed for 64 bit alignment */ 465 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 466 struct timespec tstamp; /* Timestamp */ 467 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 468 struct timespec audio_tstamp; /* from sample counter or wall clock */ 469 }; 470 471 struct snd_pcm_mmap_control { 472 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 473 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 474 }; 475 476 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 477 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 478 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 479 480 struct snd_pcm_sync_ptr { 481 unsigned int flags; 482 union { 483 struct snd_pcm_mmap_status status; 484 unsigned char reserved[64]; 485 } s; 486 union { 487 struct snd_pcm_mmap_control control; 488 unsigned char reserved[64]; 489 } c; 490 }; 491 492 struct snd_xferi { 493 snd_pcm_sframes_t result; 494 void *buf; 495 snd_pcm_uframes_t frames; 496 }; 497 498 struct snd_xfern { 499 snd_pcm_sframes_t result; 500 void * *bufs; 501 snd_pcm_uframes_t frames; 502 }; 503 504 enum { 505 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 506 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 507 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 508 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 509 }; 510 511 /* channel positions */ 512 enum { 513 SNDRV_CHMAP_UNKNOWN = 0, 514 SNDRV_CHMAP_NA, /* N/A, silent */ 515 SNDRV_CHMAP_MONO, /* mono stream */ 516 /* this follows the alsa-lib mixer channel value + 3 */ 517 SNDRV_CHMAP_FL, /* front left */ 518 SNDRV_CHMAP_FR, /* front right */ 519 SNDRV_CHMAP_RL, /* rear left */ 520 SNDRV_CHMAP_RR, /* rear right */ 521 SNDRV_CHMAP_FC, /* front center */ 522 SNDRV_CHMAP_LFE, /* LFE */ 523 SNDRV_CHMAP_SL, /* side left */ 524 SNDRV_CHMAP_SR, /* side right */ 525 SNDRV_CHMAP_RC, /* rear center */ 526 /* new definitions */ 527 SNDRV_CHMAP_FLC, /* front left center */ 528 SNDRV_CHMAP_FRC, /* front right center */ 529 SNDRV_CHMAP_RLC, /* rear left center */ 530 SNDRV_CHMAP_RRC, /* rear right center */ 531 SNDRV_CHMAP_FLW, /* front left wide */ 532 SNDRV_CHMAP_FRW, /* front right wide */ 533 SNDRV_CHMAP_FLH, /* front left high */ 534 SNDRV_CHMAP_FCH, /* front center high */ 535 SNDRV_CHMAP_FRH, /* front right high */ 536 SNDRV_CHMAP_TC, /* top center */ 537 SNDRV_CHMAP_TFL, /* top front left */ 538 SNDRV_CHMAP_TFR, /* top front right */ 539 SNDRV_CHMAP_TFC, /* top front center */ 540 SNDRV_CHMAP_TRL, /* top rear left */ 541 SNDRV_CHMAP_TRR, /* top rear right */ 542 SNDRV_CHMAP_TRC, /* top rear center */ 543 /* new definitions for UAC2 */ 544 SNDRV_CHMAP_TFLC, /* top front left center */ 545 SNDRV_CHMAP_TFRC, /* top front right center */ 546 SNDRV_CHMAP_TSL, /* top side left */ 547 SNDRV_CHMAP_TSR, /* top side right */ 548 SNDRV_CHMAP_LLFE, /* left LFE */ 549 SNDRV_CHMAP_RLFE, /* right LFE */ 550 SNDRV_CHMAP_BC, /* bottom center */ 551 SNDRV_CHMAP_BLC, /* bottom left center */ 552 SNDRV_CHMAP_BRC, /* bottom right center */ 553 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 554 }; 555 556 #define SNDRV_CHMAP_POSITION_MASK 0xffff 557 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 558 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 559 560 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 561 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 562 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 563 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 564 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 565 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 566 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 567 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 568 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 569 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 570 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 571 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 572 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 573 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 574 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 575 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 576 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 577 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 578 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 579 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 580 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 581 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 582 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 583 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 584 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 585 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 586 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 587 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 588 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 589 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 590 591 /***************************************************************************** 592 * * 593 * MIDI v1.0 interface * 594 * * 595 *****************************************************************************/ 596 597 /* 598 * Raw MIDI section - /dev/snd/midi?? 599 */ 600 601 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) 602 603 enum { 604 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 605 SNDRV_RAWMIDI_STREAM_INPUT, 606 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 607 }; 608 609 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 610 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 611 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 612 613 struct snd_rawmidi_info { 614 unsigned int device; /* RO/WR (control): device number */ 615 unsigned int subdevice; /* RO/WR (control): subdevice number */ 616 int stream; /* WR: stream */ 617 int card; /* R: card number */ 618 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 619 unsigned char id[64]; /* ID (user selectable) */ 620 unsigned char name[80]; /* name of device */ 621 unsigned char subname[32]; /* name of active or selected subdevice */ 622 unsigned int subdevices_count; 623 unsigned int subdevices_avail; 624 unsigned char reserved[64]; /* reserved for future use */ 625 }; 626 627 struct snd_rawmidi_params { 628 int stream; 629 size_t buffer_size; /* queue size in bytes */ 630 size_t avail_min; /* minimum avail bytes for wakeup */ 631 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 632 unsigned char reserved[16]; /* reserved for future use */ 633 }; 634 635 struct snd_rawmidi_status { 636 int stream; 637 struct timespec tstamp; /* Timestamp */ 638 size_t avail; /* available bytes */ 639 size_t xruns; /* count of overruns since last status (in bytes) */ 640 unsigned char reserved[16]; /* reserved for future use */ 641 }; 642 643 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 644 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 645 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 646 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 647 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 648 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 649 650 /* 651 * Timer section - /dev/snd/timer 652 */ 653 654 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) 655 656 enum { 657 SNDRV_TIMER_CLASS_NONE = -1, 658 SNDRV_TIMER_CLASS_SLAVE = 0, 659 SNDRV_TIMER_CLASS_GLOBAL, 660 SNDRV_TIMER_CLASS_CARD, 661 SNDRV_TIMER_CLASS_PCM, 662 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 663 }; 664 665 /* slave timer classes */ 666 enum { 667 SNDRV_TIMER_SCLASS_NONE = 0, 668 SNDRV_TIMER_SCLASS_APPLICATION, 669 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 670 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 671 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 672 }; 673 674 /* global timers (device member) */ 675 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 676 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 677 #define SNDRV_TIMER_GLOBAL_HPET 2 678 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 679 680 /* info flags */ 681 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 682 683 struct snd_timer_id { 684 int dev_class; 685 int dev_sclass; 686 int card; 687 int device; 688 int subdevice; 689 }; 690 691 struct snd_timer_ginfo { 692 struct snd_timer_id tid; /* requested timer ID */ 693 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 694 int card; /* card number */ 695 unsigned char id[64]; /* timer identification */ 696 unsigned char name[80]; /* timer name */ 697 unsigned long reserved0; /* reserved for future use */ 698 unsigned long resolution; /* average period resolution in ns */ 699 unsigned long resolution_min; /* minimal period resolution in ns */ 700 unsigned long resolution_max; /* maximal period resolution in ns */ 701 unsigned int clients; /* active timer clients */ 702 unsigned char reserved[32]; 703 }; 704 705 struct snd_timer_gparams { 706 struct snd_timer_id tid; /* requested timer ID */ 707 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 708 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 709 unsigned char reserved[32]; 710 }; 711 712 struct snd_timer_gstatus { 713 struct snd_timer_id tid; /* requested timer ID */ 714 unsigned long resolution; /* current period resolution in ns */ 715 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 716 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 717 unsigned char reserved[32]; 718 }; 719 720 struct snd_timer_select { 721 struct snd_timer_id id; /* bind to timer ID */ 722 unsigned char reserved[32]; /* reserved */ 723 }; 724 725 struct snd_timer_info { 726 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 727 int card; /* card number */ 728 unsigned char id[64]; /* timer identificator */ 729 unsigned char name[80]; /* timer name */ 730 unsigned long reserved0; /* reserved for future use */ 731 unsigned long resolution; /* average period resolution in ns */ 732 unsigned char reserved[64]; /* reserved */ 733 }; 734 735 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 736 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 737 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 738 739 struct snd_timer_params { 740 unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ 741 unsigned int ticks; /* requested resolution in ticks */ 742 unsigned int queue_size; /* total size of queue (32-1024) */ 743 unsigned int reserved0; /* reserved, was: failure locations */ 744 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 745 unsigned char reserved[60]; /* reserved */ 746 }; 747 748 struct snd_timer_status { 749 struct timespec tstamp; /* Timestamp - last update */ 750 unsigned int resolution; /* current period resolution in ns */ 751 unsigned int lost; /* counter of master tick lost */ 752 unsigned int overrun; /* count of read queue overruns */ 753 unsigned int queue; /* used queue size */ 754 unsigned char reserved[64]; /* reserved */ 755 }; 756 757 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 758 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 759 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) 760 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 761 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 762 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 763 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 764 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 765 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 766 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 767 /* The following four ioctls are changed since 1.0.9 due to confliction */ 768 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 769 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 770 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 771 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 772 773 struct snd_timer_read { 774 unsigned int resolution; 775 unsigned int ticks; 776 }; 777 778 enum { 779 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 780 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 781 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 782 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 783 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 784 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 785 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 786 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 787 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 788 /* master timer events for slave timer instances */ 789 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 790 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 791 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 792 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 793 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 794 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 795 }; 796 797 struct snd_timer_tread { 798 int event; 799 struct timespec tstamp; 800 unsigned int val; 801 }; 802 803 /**************************************************************************** 804 * * 805 * Section for driver control interface - /dev/snd/control? * 806 * * 807 ****************************************************************************/ 808 809 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 810 811 struct snd_ctl_card_info { 812 int card; /* card number */ 813 int pad; /* reserved for future (was type) */ 814 unsigned char id[16]; /* ID of card (user selectable) */ 815 unsigned char driver[16]; /* Driver name */ 816 unsigned char name[32]; /* Short name of soundcard */ 817 unsigned char longname[80]; /* name + info text about soundcard */ 818 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 819 unsigned char mixername[80]; /* visual mixer identification */ 820 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 821 }; 822 823 typedef int __bitwise snd_ctl_elem_type_t; 824 #define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */ 825 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */ 826 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */ 827 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */ 828 #define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */ 829 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 830 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 831 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 832 833 typedef int __bitwise snd_ctl_elem_iface_t; 834 #define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */ 835 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 836 #define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 837 #define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */ 838 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */ 839 #define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */ 840 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */ 841 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 842 843 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 844 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 845 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 846 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 847 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ 848 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 849 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 850 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 851 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 852 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 853 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 854 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 855 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 856 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 857 /* bits 30 and 31 are obsoleted (for indirect access) */ 858 859 /* for further details see the ACPI and PCI power management specification */ 860 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 861 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 862 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 863 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 864 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 865 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 866 867 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 868 869 struct snd_ctl_elem_id { 870 unsigned int numid; /* numeric identifier, zero = invalid */ 871 snd_ctl_elem_iface_t iface; /* interface identifier */ 872 unsigned int device; /* device/client number */ 873 unsigned int subdevice; /* subdevice (substream) number */ 874 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 875 unsigned int index; /* index of item */ 876 }; 877 878 struct snd_ctl_elem_list { 879 unsigned int offset; /* W: first element ID to get */ 880 unsigned int space; /* W: count of element IDs to get */ 881 unsigned int used; /* R: count of element IDs set */ 882 unsigned int count; /* R: count of all elements */ 883 struct snd_ctl_elem_id *pids; /* R: IDs */ 884 unsigned char reserved[50]; 885 }; 886 887 struct snd_ctl_elem_info { 888 struct snd_ctl_elem_id id; /* W: element ID */ 889 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 890 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 891 unsigned int count; /* count of values */ 892 __kernel_pid_t owner; /* owner's PID of this control */ 893 union { 894 struct { 895 long min; /* R: minimum value */ 896 long max; /* R: maximum value */ 897 long step; /* R: step (0 variable) */ 898 } integer; 899 struct { 900 long long min; /* R: minimum value */ 901 long long max; /* R: maximum value */ 902 long long step; /* R: step (0 variable) */ 903 } integer64; 904 struct { 905 unsigned int items; /* R: number of items */ 906 unsigned int item; /* W: item number */ 907 char name[64]; /* R: value name */ 908 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 909 unsigned int names_length; 910 } enumerated; 911 unsigned char reserved[128]; 912 } value; 913 union { 914 unsigned short d[4]; /* dimensions */ 915 unsigned short *d_ptr; /* indirect - obsoleted */ 916 } dimen; 917 unsigned char reserved[64-4*sizeof(unsigned short)]; 918 }; 919 920 struct snd_ctl_elem_value { 921 struct snd_ctl_elem_id id; /* W: element ID */ 922 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 923 union { 924 union { 925 long value[128]; 926 long *value_ptr; /* obsoleted */ 927 } integer; 928 union { 929 long long value[64]; 930 long long *value_ptr; /* obsoleted */ 931 } integer64; 932 union { 933 unsigned int item[128]; 934 unsigned int *item_ptr; /* obsoleted */ 935 } enumerated; 936 union { 937 unsigned char data[512]; 938 unsigned char *data_ptr; /* obsoleted */ 939 } bytes; 940 struct snd_aes_iec958 iec958; 941 } value; /* RO */ 942 struct timespec tstamp; 943 unsigned char reserved[128-sizeof(struct timespec)]; 944 }; 945 946 struct snd_ctl_tlv { 947 unsigned int numid; /* control element numeric identification */ 948 unsigned int length; /* in bytes aligned to 4 */ 949 unsigned int tlv[0]; /* first TLV */ 950 }; 951 952 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 953 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 954 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 955 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 956 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 957 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 958 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 959 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 960 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 961 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 962 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 963 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 964 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 965 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 966 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 967 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 968 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 969 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 970 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 971 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 972 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 973 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 974 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 975 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 976 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 977 978 /* 979 * Read interface. 980 */ 981 982 enum sndrv_ctl_event_type { 983 SNDRV_CTL_EVENT_ELEM = 0, 984 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 985 }; 986 987 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 988 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 989 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 990 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 991 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 992 993 struct snd_ctl_event { 994 int type; /* event type - SNDRV_CTL_EVENT_* */ 995 union { 996 struct { 997 unsigned int mask; 998 struct snd_ctl_elem_id id; 999 } elem; 1000 unsigned char data8[60]; 1001 } data; 1002 }; 1003 1004 /* 1005 * Control names 1006 */ 1007 1008 #define SNDRV_CTL_NAME_NONE "" 1009 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1010 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1011 1012 #define SNDRV_CTL_NAME_IEC958_NONE "" 1013 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1014 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1015 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1016 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1017 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1018 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1019 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1020 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1021 1022 #endif /* __SOUND_ASOUND_H */ 1023
