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