1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * Advanced Linux Sound Architecture - ALSA - Driver 4 * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>, 5 * Abramo Bagnara <abramo@alsa-project.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #ifndef __SOUND_ASOUND_H 25 #define __SOUND_ASOUND_H 26 27 #if defined(__KERNEL__) || defined(__linux__) 28 #include <linux/types.h> 29 #include <asm/byteorder.h> 30 #else 31 #include <sys/endian.h> 32 #include <sys/ioctl.h> 33 #endif 34 35 #include <stdlib.h> 36 #include <time.h> 37 38 /* 39 * protocol version 40 */ 41 42 #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) 43 #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) 44 #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) 45 #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) 46 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ 47 (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ 48 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ 49 SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) 50 51 /**************************************************************************** 52 * * 53 * Digital audio interface * 54 * * 55 ****************************************************************************/ 56 57 struct snd_aes_iec958 { 58 unsigned char status[24]; /* AES/IEC958 channel status bits */ 59 unsigned char subcode[147]; /* AES/IEC958 subcode bits */ 60 unsigned char pad; /* nothing */ 61 unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ 62 }; 63 64 /**************************************************************************** 65 * * 66 * CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort * 67 * * 68 ****************************************************************************/ 69 70 struct snd_cea_861_aud_if { 71 unsigned char db1_ct_cc; /* coding type and channel count */ 72 unsigned char db2_sf_ss; /* sample frequency and size */ 73 unsigned char db3; /* not used, all zeros */ 74 unsigned char db4_ca; /* channel allocation code */ 75 unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */ 76 }; 77 78 /**************************************************************************** 79 * * 80 * Section for driver hardware dependent interface - /dev/snd/hw? * 81 * * 82 ****************************************************************************/ 83 84 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) 85 86 enum { 87 SNDRV_HWDEP_IFACE_OPL2 = 0, 88 SNDRV_HWDEP_IFACE_OPL3, 89 SNDRV_HWDEP_IFACE_OPL4, 90 SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ 91 SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ 92 SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ 93 SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ 94 SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ 95 SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ 96 SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ 97 SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ 98 SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ 99 SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ 100 SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ 101 SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ 102 SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ 103 SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ 104 SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ 105 SNDRV_HWDEP_IFACE_FW_DICE, /* TC DICE FireWire device */ 106 SNDRV_HWDEP_IFACE_FW_FIREWORKS, /* Echo Audio Fireworks based device */ 107 SNDRV_HWDEP_IFACE_FW_BEBOB, /* BridgeCo BeBoB based device */ 108 SNDRV_HWDEP_IFACE_FW_OXFW, /* Oxford OXFW970/971 based device */ 109 SNDRV_HWDEP_IFACE_FW_DIGI00X, /* Digidesign Digi 002/003 family */ 110 SNDRV_HWDEP_IFACE_FW_TASCAM, /* TASCAM FireWire series */ 111 SNDRV_HWDEP_IFACE_LINE6, /* Line6 USB processors */ 112 SNDRV_HWDEP_IFACE_FW_MOTU, /* MOTU FireWire series */ 113 SNDRV_HWDEP_IFACE_FW_FIREFACE, /* RME Fireface series */ 114 115 /* Don't forget to change the following: */ 116 SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE 117 }; 118 119 struct snd_hwdep_info { 120 unsigned int device; /* WR: device number */ 121 int card; /* R: card number */ 122 unsigned char id[64]; /* ID (user selectable) */ 123 unsigned char name[80]; /* hwdep name */ 124 int iface; /* hwdep interface */ 125 unsigned char reserved[64]; /* reserved for future */ 126 }; 127 128 /* generic DSP loader */ 129 struct snd_hwdep_dsp_status { 130 unsigned int version; /* R: driver-specific version */ 131 unsigned char id[32]; /* R: driver-specific ID string */ 132 unsigned int num_dsps; /* R: number of DSP images to transfer */ 133 unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ 134 unsigned int chip_ready; /* R: 1 = initialization finished */ 135 unsigned char reserved[16]; /* reserved for future use */ 136 }; 137 138 struct snd_hwdep_dsp_image { 139 unsigned int index; /* W: DSP index */ 140 unsigned char name[64]; /* W: ID (e.g. file name) */ 141 unsigned char *image; /* W: binary image */ 142 size_t length; /* W: size of image in bytes */ 143 unsigned long driver_data; /* W: driver-specific data */ 144 }; 145 146 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) 147 #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) 148 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) 149 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) 150 151 /***************************************************************************** 152 * * 153 * Digital Audio (PCM) interface - /dev/snd/pcm?? * 154 * * 155 *****************************************************************************/ 156 157 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15) 158 159 typedef unsigned long snd_pcm_uframes_t; 160 typedef signed long snd_pcm_sframes_t; 161 162 enum { 163 SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ 164 SNDRV_PCM_CLASS_MULTI, /* multichannel device */ 165 SNDRV_PCM_CLASS_MODEM, /* software modem class */ 166 SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ 167 /* Don't forget to change the following: */ 168 SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, 169 }; 170 171 enum { 172 SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ 173 SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ 174 /* Don't forget to change the following: */ 175 SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, 176 }; 177 178 enum { 179 SNDRV_PCM_STREAM_PLAYBACK = 0, 180 SNDRV_PCM_STREAM_CAPTURE, 181 SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, 182 }; 183 184 typedef int __bitwise snd_pcm_access_t; 185 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */ 186 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */ 187 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */ 188 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */ 189 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */ 190 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED 191 192 typedef int __bitwise snd_pcm_format_t; 193 #define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0) 194 #define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1) 195 #define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2) 196 #define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3) 197 #define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4) 198 #define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5) 199 #define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */ 200 #define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */ 201 #define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */ 202 #define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */ 203 #define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10) 204 #define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11) 205 #define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12) 206 #define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13) 207 #define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 208 #define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ 209 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 210 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ 211 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ 212 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ 213 #define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20) 214 #define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21) 215 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22) 216 #define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23) 217 #define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24) 218 #define SNDRV_PCM_FORMAT_S20_LE ((snd_pcm_format_t) 25) /* in four bytes, LSB justified */ 219 #define SNDRV_PCM_FORMAT_S20_BE ((snd_pcm_format_t) 26) /* in four bytes, LSB justified */ 220 #define SNDRV_PCM_FORMAT_U20_LE ((snd_pcm_format_t) 27) /* in four bytes, LSB justified */ 221 #define SNDRV_PCM_FORMAT_U20_BE ((snd_pcm_format_t) 28) /* in four bytes, LSB justified */ 222 /* gap in the numbering for a future standard linear format */ 223 #define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31) 224 #define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */ 225 #define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */ 226 #define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */ 227 #define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */ 228 #define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */ 229 #define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */ 230 #define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */ 231 #define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */ 232 #define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */ 233 #define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */ 234 #define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */ 235 #define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */ 236 #define SNDRV_PCM_FORMAT_G723_24 ((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */ 237 #define SNDRV_PCM_FORMAT_G723_24_1B ((snd_pcm_format_t) 45) /* 1 sample in 1 byte */ 238 #define SNDRV_PCM_FORMAT_G723_40 ((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ 239 #define SNDRV_PCM_FORMAT_G723_40_1B ((snd_pcm_format_t) 47) /* 1 sample in 1 byte */ 240 #define SNDRV_PCM_FORMAT_DSD_U8 ((snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */ 241 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */ 242 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */ 243 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */ 244 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */ 245 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE 246 #define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8 247 248 #ifdef SNDRV_LITTLE_ENDIAN 249 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE 250 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE 251 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE 252 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE 253 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE 254 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE 255 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE 256 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE 257 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE 258 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE 259 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE 260 #endif 261 #ifdef SNDRV_BIG_ENDIAN 262 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE 263 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE 264 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE 265 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE 266 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE 267 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE 268 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE 269 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE 270 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE 271 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE 272 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE 273 #endif 274 275 typedef int __bitwise snd_pcm_subformat_t; 276 #define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0) 277 #define SNDRV_PCM_SUBFORMAT_MSBITS_MAX ((snd_pcm_subformat_t) 1) 278 #define SNDRV_PCM_SUBFORMAT_MSBITS_20 ((snd_pcm_subformat_t) 2) 279 #define SNDRV_PCM_SUBFORMAT_MSBITS_24 ((snd_pcm_subformat_t) 3) 280 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_MSBITS_24 281 282 #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ 283 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ 284 #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ 285 #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ 286 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020 /* need the explicit sync of appl_ptr update */ 287 #define SNDRV_PCM_INFO_PERFECT_DRAIN 0x00000040 /* silencing at the end of stream is not required */ 288 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ 289 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ 290 #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ 291 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ 292 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ 293 #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ 294 #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ 295 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ 296 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ 297 #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ 298 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000 /* period wakeup can be disabled */ 299 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000 /* (Deprecated)has audio wall clock for audio/system time sync */ 300 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000 /* report hardware link audio time, reset on startup */ 301 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000 /* report absolute hardware link audio time, not reset on startup */ 302 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000 /* report estimated link audio time */ 303 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000 /* report synchronized audio/system time */ 304 305 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000 /* internal kernel flag - trigger in drain */ 306 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ 307 308 #if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__ 309 #define __SND_STRUCT_TIME64 310 #endif 311 312 typedef int __bitwise snd_pcm_state_t; 313 #define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */ 314 #define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */ 315 #define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */ 316 #define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */ 317 #define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */ 318 #define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */ 319 #define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */ 320 #define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */ 321 #define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */ 322 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED 323 324 enum { 325 SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, 326 SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000, 327 SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000, 328 SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000, 329 SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000, 330 #ifdef __SND_STRUCT_TIME64 331 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW, 332 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW, 333 #else 334 SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD, 335 SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD, 336 #endif 337 }; 338 339 union snd_pcm_sync_id { 340 unsigned char id[16]; 341 unsigned short id16[8]; 342 unsigned int id32[4]; 343 }; 344 345 struct snd_pcm_info { 346 unsigned int device; /* RO/WR (control): device number */ 347 unsigned int subdevice; /* RO/WR (control): subdevice number */ 348 int stream; /* RO/WR (control): stream direction */ 349 int card; /* R: card number */ 350 unsigned char id[64]; /* ID (user selectable) */ 351 unsigned char name[80]; /* name of this device */ 352 unsigned char subname[32]; /* subdevice name */ 353 int dev_class; /* SNDRV_PCM_CLASS_* */ 354 int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ 355 unsigned int subdevices_count; 356 unsigned int subdevices_avail; 357 union snd_pcm_sync_id sync; /* hardware synchronization ID */ 358 unsigned char reserved[64]; /* reserved for future... */ 359 }; 360 361 typedef int snd_pcm_hw_param_t; 362 #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ 363 #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ 364 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ 365 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS 366 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT 367 368 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ 369 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ 370 #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ 371 #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ 372 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between 373 * interrupts in us 374 */ 375 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between 376 * interrupts 377 */ 378 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between 379 * interrupts 380 */ 381 #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per 382 * buffer 383 */ 384 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer 385 * in us 386 */ 387 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ 388 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ 389 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ 390 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS 391 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME 392 393 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ 394 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1) /* export buffer */ 395 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2) /* disable period wakeups */ 396 #define SNDRV_PCM_HW_PARAMS_NO_DRAIN_SILENCE (1<<3) /* suppress the silence fill 397 * for draining 398 */ 399 400 struct snd_interval { 401 unsigned int min, max; 402 unsigned int openmin:1, 403 openmax:1, 404 integer:1, 405 empty:1; 406 }; 407 408 #define SNDRV_MASK_MAX 256 409 410 struct snd_mask { 411 __u32 bits[(SNDRV_MASK_MAX+31)/32]; 412 }; 413 414 struct snd_pcm_hw_params { 415 unsigned int flags; 416 struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 417 SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; 418 struct snd_mask mres[5]; /* reserved masks */ 419 struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - 420 SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; 421 struct snd_interval ires[9]; /* reserved intervals */ 422 unsigned int rmask; /* W: requested masks */ 423 unsigned int cmask; /* R: changed masks */ 424 unsigned int info; /* R: Info flags for returned setup */ 425 unsigned int msbits; /* R: used most significant bits */ 426 unsigned int rate_num; /* R: rate numerator */ 427 unsigned int rate_den; /* R: rate denominator */ 428 snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ 429 unsigned char reserved[64]; /* reserved for future */ 430 }; 431 432 enum { 433 SNDRV_PCM_TSTAMP_NONE = 0, 434 SNDRV_PCM_TSTAMP_ENABLE, 435 SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, 436 }; 437 438 struct snd_pcm_sw_params { 439 int tstamp_mode; /* timestamp mode */ 440 unsigned int period_step; 441 unsigned int sleep_min; /* min ticks to sleep */ 442 snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ 443 snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ 444 snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ 445 snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ 446 snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ 447 snd_pcm_uframes_t silence_size; /* silence block size */ 448 snd_pcm_uframes_t boundary; /* pointers wrap point */ 449 unsigned int proto; /* protocol version */ 450 unsigned int tstamp_type; /* timestamp type (req. proto >= 2.0.12) */ 451 unsigned char reserved[56]; /* reserved for future */ 452 }; 453 454 struct snd_pcm_channel_info { 455 unsigned int channel; 456 __kernel_off_t offset; /* mmap offset */ 457 unsigned int first; /* offset to first sample in bits */ 458 unsigned int step; /* samples distance in bits */ 459 }; 460 461 enum { 462 /* 463 * first definition for backwards compatibility only, 464 * maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else 465 */ 466 SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0, 467 468 /* timestamp definitions */ 469 SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1, /* DMA time, reported as per hw_ptr */ 470 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2, /* link time reported by sample or wallclock counter, reset on startup */ 471 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3, /* link time reported by sample or wallclock counter, not reset on startup */ 472 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4, /* link time estimated indirectly */ 473 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */ 474 SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED 475 }; 476 477 /* explicit padding avoids incompatibility between i386 and x86-64 */ 478 typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad; 479 480 struct snd_pcm_status { 481 snd_pcm_state_t state; /* stream state */ 482 __time_pad pad1; /* align to timespec */ 483 struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ 484 struct timespec tstamp; /* reference timestamp */ 485 snd_pcm_uframes_t appl_ptr; /* appl ptr */ 486 snd_pcm_uframes_t hw_ptr; /* hw ptr */ 487 snd_pcm_sframes_t delay; /* current delay in frames */ 488 snd_pcm_uframes_t avail; /* number of frames available */ 489 snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ 490 snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ 491 snd_pcm_state_t suspended_state; /* suspended stream state */ 492 __u32 audio_tstamp_data; /* needed for 64-bit alignment, used for configs/report to/from userspace */ 493 struct timespec audio_tstamp; /* sample counter, wall clock, PHC or on-demand sync'ed */ 494 struct timespec driver_tstamp; /* useful in case reference system tstamp is reported with delay */ 495 __u32 audio_tstamp_accuracy; /* in ns units, only valid if indicated in audio_tstamp_data */ 496 unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */ 497 }; 498 499 /* 500 * For mmap operations, we need the 64-bit layout, both for compat mode, 501 * and for y2038 compatibility. For 64-bit applications, the two definitions 502 * are identical, so we keep the traditional version. 503 */ 504 #ifdef __SND_STRUCT_TIME64 505 #define __snd_pcm_mmap_status64 snd_pcm_mmap_status 506 #define __snd_pcm_mmap_control64 snd_pcm_mmap_control 507 #define __snd_pcm_sync_ptr64 snd_pcm_sync_ptr 508 #define __snd_timespec64 timespec 509 struct __snd_timespec { 510 __s32 tv_sec; 511 __s32 tv_nsec; 512 }; 513 #else 514 #define __snd_pcm_mmap_status snd_pcm_mmap_status 515 #define __snd_pcm_mmap_control snd_pcm_mmap_control 516 #define __snd_pcm_sync_ptr snd_pcm_sync_ptr 517 #define __snd_timespec timespec 518 struct __snd_timespec64 { 519 __s64 tv_sec; 520 __s64 tv_nsec; 521 }; 522 523 #endif 524 525 struct __snd_pcm_mmap_status { 526 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 527 int pad1; /* Needed for 64 bit alignment */ 528 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 529 struct __snd_timespec tstamp; /* Timestamp */ 530 snd_pcm_state_t suspended_state; /* RO: suspended stream state */ 531 struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */ 532 }; 533 534 struct __snd_pcm_mmap_control { 535 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 536 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 537 }; 538 539 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ 540 #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ 541 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ 542 543 struct __snd_pcm_sync_ptr { 544 unsigned int flags; 545 union { 546 struct __snd_pcm_mmap_status status; 547 unsigned char reserved[64]; 548 } s; 549 union { 550 struct __snd_pcm_mmap_control control; 551 unsigned char reserved[64]; 552 } c; 553 }; 554 555 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN) 556 typedef char __pad_before_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 557 typedef char __pad_after_uframe[0]; 558 #endif 559 560 #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN) 561 typedef char __pad_before_uframe[0]; 562 typedef char __pad_after_uframe[sizeof(__u64) - sizeof(snd_pcm_uframes_t)]; 563 #endif 564 565 struct __snd_pcm_mmap_status64 { 566 snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ 567 __u32 pad1; /* Needed for 64 bit alignment */ 568 __pad_before_uframe __pad1; 569 snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ 570 __pad_after_uframe __pad2; 571 struct __snd_timespec64 tstamp; /* Timestamp */ 572 snd_pcm_state_t suspended_state;/* RO: suspended stream state */ 573 __u32 pad3; /* Needed for 64 bit alignment */ 574 struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */ 575 }; 576 577 struct __snd_pcm_mmap_control64 { 578 __pad_before_uframe __pad1; 579 snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ 580 __pad_before_uframe __pad2; 581 582 __pad_before_uframe __pad3; 583 snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ 584 __pad_after_uframe __pad4; 585 }; 586 587 struct __snd_pcm_sync_ptr64 { 588 __u32 flags; 589 __u32 pad1; 590 union { 591 struct __snd_pcm_mmap_status64 status; 592 unsigned char reserved[64]; 593 } s; 594 union { 595 struct __snd_pcm_mmap_control64 control; 596 unsigned char reserved[64]; 597 } c; 598 }; 599 600 struct snd_xferi { 601 snd_pcm_sframes_t result; 602 void *buf; 603 snd_pcm_uframes_t frames; 604 }; 605 606 struct snd_xfern { 607 snd_pcm_sframes_t result; 608 void * *bufs; 609 snd_pcm_uframes_t frames; 610 }; 611 612 enum { 613 SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ 614 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ 615 SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, /* monotonic_raw (no NTP) */ 616 SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW, 617 }; 618 619 /* channel positions */ 620 enum { 621 SNDRV_CHMAP_UNKNOWN = 0, 622 SNDRV_CHMAP_NA, /* N/A, silent */ 623 SNDRV_CHMAP_MONO, /* mono stream */ 624 /* this follows the alsa-lib mixer channel value + 3 */ 625 SNDRV_CHMAP_FL, /* front left */ 626 SNDRV_CHMAP_FR, /* front right */ 627 SNDRV_CHMAP_RL, /* rear left */ 628 SNDRV_CHMAP_RR, /* rear right */ 629 SNDRV_CHMAP_FC, /* front center */ 630 SNDRV_CHMAP_LFE, /* LFE */ 631 SNDRV_CHMAP_SL, /* side left */ 632 SNDRV_CHMAP_SR, /* side right */ 633 SNDRV_CHMAP_RC, /* rear center */ 634 /* new definitions */ 635 SNDRV_CHMAP_FLC, /* front left center */ 636 SNDRV_CHMAP_FRC, /* front right center */ 637 SNDRV_CHMAP_RLC, /* rear left center */ 638 SNDRV_CHMAP_RRC, /* rear right center */ 639 SNDRV_CHMAP_FLW, /* front left wide */ 640 SNDRV_CHMAP_FRW, /* front right wide */ 641 SNDRV_CHMAP_FLH, /* front left high */ 642 SNDRV_CHMAP_FCH, /* front center high */ 643 SNDRV_CHMAP_FRH, /* front right high */ 644 SNDRV_CHMAP_TC, /* top center */ 645 SNDRV_CHMAP_TFL, /* top front left */ 646 SNDRV_CHMAP_TFR, /* top front right */ 647 SNDRV_CHMAP_TFC, /* top front center */ 648 SNDRV_CHMAP_TRL, /* top rear left */ 649 SNDRV_CHMAP_TRR, /* top rear right */ 650 SNDRV_CHMAP_TRC, /* top rear center */ 651 /* new definitions for UAC2 */ 652 SNDRV_CHMAP_TFLC, /* top front left center */ 653 SNDRV_CHMAP_TFRC, /* top front right center */ 654 SNDRV_CHMAP_TSL, /* top side left */ 655 SNDRV_CHMAP_TSR, /* top side right */ 656 SNDRV_CHMAP_LLFE, /* left LFE */ 657 SNDRV_CHMAP_RLFE, /* right LFE */ 658 SNDRV_CHMAP_BC, /* bottom center */ 659 SNDRV_CHMAP_BLC, /* bottom left center */ 660 SNDRV_CHMAP_BRC, /* bottom right center */ 661 SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC, 662 }; 663 664 #define SNDRV_CHMAP_POSITION_MASK 0xffff 665 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16) 666 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16) 667 668 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) 669 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) 670 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) 671 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) 672 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int) 673 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) 674 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) 675 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) 676 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) 677 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) 678 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) 679 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) 680 #define __SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct __snd_pcm_sync_ptr) 681 #define __SNDRV_PCM_IOCTL_SYNC_PTR64 _IOWR('A', 0x23, struct __snd_pcm_sync_ptr64) 682 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) 683 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status) 684 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) 685 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) 686 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) 687 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) 688 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) 689 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) 690 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) 691 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) 692 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) 693 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) 694 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) 695 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) 696 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) 697 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) 698 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) 699 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) 700 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) 701 702 /***************************************************************************** 703 * * 704 * MIDI v1.0 interface * 705 * * 706 *****************************************************************************/ 707 708 /* 709 * Raw MIDI section - /dev/snd/midi?? 710 */ 711 712 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 4) 713 714 enum { 715 SNDRV_RAWMIDI_STREAM_OUTPUT = 0, 716 SNDRV_RAWMIDI_STREAM_INPUT, 717 SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, 718 }; 719 720 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 721 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 722 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 723 #define SNDRV_RAWMIDI_INFO_UMP 0x00000008 724 725 struct snd_rawmidi_info { 726 unsigned int device; /* RO/WR (control): device number */ 727 unsigned int subdevice; /* RO/WR (control): subdevice number */ 728 int stream; /* WR: stream */ 729 int card; /* R: card number */ 730 unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ 731 unsigned char id[64]; /* ID (user selectable) */ 732 unsigned char name[80]; /* name of device */ 733 unsigned char subname[32]; /* name of active or selected subdevice */ 734 unsigned int subdevices_count; 735 unsigned int subdevices_avail; 736 unsigned char reserved[64]; /* reserved for future use */ 737 }; 738 739 #define SNDRV_RAWMIDI_MODE_FRAMING_MASK (7<<0) 740 #define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT 0 741 #define SNDRV_RAWMIDI_MODE_FRAMING_NONE (0<<0) 742 #define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP (1<<0) 743 #define SNDRV_RAWMIDI_MODE_CLOCK_MASK (7<<3) 744 #define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT 3 745 #define SNDRV_RAWMIDI_MODE_CLOCK_NONE (0<<3) 746 #define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME (1<<3) 747 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC (2<<3) 748 #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW (3<<3) 749 750 #define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16 751 752 struct snd_rawmidi_framing_tstamp { 753 /* For now, frame_type is always 0. Midi 2.0 is expected to add new 754 * types here. Applications are expected to skip unknown frame types. 755 */ 756 __u8 frame_type; 757 __u8 length; /* number of valid bytes in data field */ 758 __u8 reserved[2]; 759 __u32 tv_nsec; /* nanoseconds */ 760 __u64 tv_sec; /* seconds */ 761 __u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH]; 762 } __packed; 763 764 struct snd_rawmidi_params { 765 int stream; 766 size_t buffer_size; /* queue size in bytes */ 767 size_t avail_min; /* minimum avail bytes for wakeup */ 768 unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ 769 unsigned int mode; /* For input data only, frame incoming data */ 770 unsigned char reserved[12]; /* reserved for future use */ 771 }; 772 773 struct snd_rawmidi_status { 774 int stream; 775 __time_pad pad1; 776 struct timespec tstamp; /* Timestamp */ 777 size_t avail; /* available bytes */ 778 size_t xruns; /* count of overruns since last status (in bytes) */ 779 unsigned char reserved[16]; /* reserved for future use */ 780 }; 781 782 /* UMP EP info flags */ 783 #define SNDRV_UMP_EP_INFO_STATIC_BLOCKS 0x01 784 785 /* UMP EP Protocol / JRTS capability bits */ 786 #define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300 787 #define SNDRV_UMP_EP_INFO_PROTO_MIDI1 0x0100 /* MIDI 1.0 */ 788 #define SNDRV_UMP_EP_INFO_PROTO_MIDI2 0x0200 /* MIDI 2.0 */ 789 #define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003 790 #define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 /* JRTS Transmit */ 791 #define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 /* JRTS Receive */ 792 793 /* UMP Endpoint information */ 794 struct snd_ump_endpoint_info { 795 int card; /* card number */ 796 int device; /* device number */ 797 unsigned int flags; /* additional info */ 798 unsigned int protocol_caps; /* protocol capabilities */ 799 unsigned int protocol; /* current protocol */ 800 unsigned int num_blocks; /* # of function blocks */ 801 unsigned short version; /* UMP major/minor version */ 802 unsigned short family_id; /* MIDI device family ID */ 803 unsigned short model_id; /* MIDI family model ID */ 804 unsigned int manufacturer_id; /* MIDI manufacturer ID */ 805 unsigned char sw_revision[4]; /* software revision */ 806 unsigned short padding; 807 unsigned char name[128]; /* endpoint name string */ 808 unsigned char product_id[128]; /* unique product id string */ 809 unsigned char reserved[32]; 810 } __packed; 811 812 /* UMP direction */ 813 #define SNDRV_UMP_DIR_INPUT 0x01 814 #define SNDRV_UMP_DIR_OUTPUT 0x02 815 #define SNDRV_UMP_DIR_BIDIRECTION 0x03 816 817 /* UMP block info flags */ 818 #define SNDRV_UMP_BLOCK_IS_MIDI1 (1U << 0) /* MIDI 1.0 port w/o restrict */ 819 #define SNDRV_UMP_BLOCK_IS_LOWSPEED (1U << 1) /* 31.25Kbps B/W MIDI1 port */ 820 821 /* UMP block user-interface hint */ 822 #define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN 0x00 823 #define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER 0x01 824 #define SNDRV_UMP_BLOCK_UI_HINT_SENDER 0x02 825 #define SNDRV_UMP_BLOCK_UI_HINT_BOTH 0x03 826 827 /* UMP groups and blocks */ 828 #define SNDRV_UMP_MAX_GROUPS 16 829 #define SNDRV_UMP_MAX_BLOCKS 32 830 831 /* UMP Block information */ 832 struct snd_ump_block_info { 833 int card; /* card number */ 834 int device; /* device number */ 835 unsigned char block_id; /* block ID (R/W) */ 836 unsigned char direction; /* UMP direction */ 837 unsigned char active; /* Activeness */ 838 unsigned char first_group; /* first group ID */ 839 unsigned char num_groups; /* number of groups */ 840 unsigned char midi_ci_version; /* MIDI-CI support version */ 841 unsigned char sysex8_streams; /* max number of sysex8 streams */ 842 unsigned char ui_hint; /* user interface hint */ 843 unsigned int flags; /* various info flags */ 844 unsigned char name[128]; /* block name string */ 845 unsigned char reserved[32]; 846 } __packed; 847 848 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) 849 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) 850 #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int) 851 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) 852 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) 853 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) 854 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) 855 /* Additional ioctls for UMP rawmidi devices */ 856 #define SNDRV_UMP_IOCTL_ENDPOINT_INFO _IOR('W', 0x40, struct snd_ump_endpoint_info) 857 #define SNDRV_UMP_IOCTL_BLOCK_INFO _IOR('W', 0x41, struct snd_ump_block_info) 858 859 /* 860 * Timer section - /dev/snd/timer 861 */ 862 863 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7) 864 865 enum { 866 SNDRV_TIMER_CLASS_NONE = -1, 867 SNDRV_TIMER_CLASS_SLAVE = 0, 868 SNDRV_TIMER_CLASS_GLOBAL, 869 SNDRV_TIMER_CLASS_CARD, 870 SNDRV_TIMER_CLASS_PCM, 871 SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, 872 }; 873 874 /* slave timer classes */ 875 enum { 876 SNDRV_TIMER_SCLASS_NONE = 0, 877 SNDRV_TIMER_SCLASS_APPLICATION, 878 SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ 879 SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ 880 SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, 881 }; 882 883 /* global timers (device member) */ 884 #define SNDRV_TIMER_GLOBAL_SYSTEM 0 885 #define SNDRV_TIMER_GLOBAL_RTC 1 /* unused */ 886 #define SNDRV_TIMER_GLOBAL_HPET 2 887 #define SNDRV_TIMER_GLOBAL_HRTIMER 3 888 889 /* info flags */ 890 #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ 891 892 struct snd_timer_id { 893 int dev_class; 894 int dev_sclass; 895 int card; 896 int device; 897 int subdevice; 898 }; 899 900 struct snd_timer_ginfo { 901 struct snd_timer_id tid; /* requested timer ID */ 902 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 903 int card; /* card number */ 904 unsigned char id[64]; /* timer identification */ 905 unsigned char name[80]; /* timer name */ 906 unsigned long reserved0; /* reserved for future use */ 907 unsigned long resolution; /* average period resolution in ns */ 908 unsigned long resolution_min; /* minimal period resolution in ns */ 909 unsigned long resolution_max; /* maximal period resolution in ns */ 910 unsigned int clients; /* active timer clients */ 911 unsigned char reserved[32]; 912 }; 913 914 struct snd_timer_gparams { 915 struct snd_timer_id tid; /* requested timer ID */ 916 unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ 917 unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ 918 unsigned char reserved[32]; 919 }; 920 921 struct snd_timer_gstatus { 922 struct snd_timer_id tid; /* requested timer ID */ 923 unsigned long resolution; /* current period resolution in ns */ 924 unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ 925 unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ 926 unsigned char reserved[32]; 927 }; 928 929 struct snd_timer_select { 930 struct snd_timer_id id; /* bind to timer ID */ 931 unsigned char reserved[32]; /* reserved */ 932 }; 933 934 struct snd_timer_info { 935 unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ 936 int card; /* card number */ 937 unsigned char id[64]; /* timer identificator */ 938 unsigned char name[80]; /* timer name */ 939 unsigned long reserved0; /* reserved for future use */ 940 unsigned long resolution; /* average period resolution in ns */ 941 unsigned char reserved[64]; /* reserved */ 942 }; 943 944 #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ 945 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ 946 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ 947 948 struct snd_timer_params { 949 unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */ 950 unsigned int ticks; /* requested resolution in ticks */ 951 unsigned int queue_size; /* total size of queue (32-1024) */ 952 unsigned int reserved0; /* reserved, was: failure locations */ 953 unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ 954 unsigned char reserved[60]; /* reserved */ 955 }; 956 957 struct snd_timer_status { 958 struct timespec tstamp; /* Timestamp - last update */ 959 unsigned int resolution; /* current period resolution in ns */ 960 unsigned int lost; /* counter of master tick lost */ 961 unsigned int overrun; /* count of read queue overruns */ 962 unsigned int queue; /* used queue size */ 963 unsigned char reserved[64]; /* reserved */ 964 }; 965 966 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) 967 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) 968 #define SNDRV_TIMER_IOCTL_TREAD_OLD _IOW('T', 0x02, int) 969 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) 970 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) 971 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) 972 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) 973 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) 974 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) 975 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) 976 /* The following four ioctls are changed since 1.0.9 due to confliction */ 977 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) 978 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) 979 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) 980 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) 981 #define SNDRV_TIMER_IOCTL_TREAD64 _IOW('T', 0xa4, int) 982 983 #if __BITS_PER_LONG == 64 984 #define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD 985 #else 986 #define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \ 987 SNDRV_TIMER_IOCTL_TREAD_OLD : \ 988 SNDRV_TIMER_IOCTL_TREAD64) 989 #endif 990 991 struct snd_timer_read { 992 unsigned int resolution; 993 unsigned int ticks; 994 }; 995 996 enum { 997 SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ 998 SNDRV_TIMER_EVENT_TICK, /* val = ticks */ 999 SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ 1000 SNDRV_TIMER_EVENT_STOP, /* val = 0 */ 1001 SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ 1002 SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ 1003 SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ 1004 SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ 1005 SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ 1006 /* master timer events for slave timer instances */ 1007 SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, 1008 SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, 1009 SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, 1010 SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, 1011 SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, 1012 SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, 1013 }; 1014 1015 struct snd_timer_tread { 1016 int event; 1017 __time_pad pad1; 1018 struct timespec tstamp; 1019 unsigned int val; 1020 __time_pad pad2; 1021 }; 1022 1023 /**************************************************************************** 1024 * * 1025 * Section for driver control interface - /dev/snd/control? * 1026 * * 1027 ****************************************************************************/ 1028 1029 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) 1030 1031 struct snd_ctl_card_info { 1032 int card; /* card number */ 1033 int pad; /* reserved for future (was type) */ 1034 unsigned char id[16]; /* ID of card (user selectable) */ 1035 unsigned char driver[16]; /* Driver name */ 1036 unsigned char name[32]; /* Short name of soundcard */ 1037 unsigned char longname[80]; /* name + info text about soundcard */ 1038 unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ 1039 unsigned char mixername[80]; /* visual mixer identification */ 1040 unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ 1041 }; 1042 1043 typedef int __bitwise snd_ctl_elem_type_t; 1044 #define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */ 1045 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */ 1046 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */ 1047 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */ 1048 #define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */ 1049 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ 1050 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */ 1051 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 1052 1053 typedef int __bitwise snd_ctl_elem_iface_t; 1054 #define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */ 1055 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */ 1056 #define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */ 1057 #define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */ 1058 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */ 1059 #define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */ 1060 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */ 1061 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER 1062 1063 #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) 1064 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) 1065 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) 1066 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ 1067 // (1 << 3) is unused. 1068 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ 1069 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ 1070 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 1071 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ 1072 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ 1073 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ 1074 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ 1075 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ 1076 #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ 1077 /* bits 30 and 31 are obsoleted (for indirect access) */ 1078 1079 /* for further details see the ACPI and PCI power management specification */ 1080 #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ 1081 #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ 1082 #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ 1083 #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ 1084 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ 1085 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ 1086 1087 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44 1088 1089 struct snd_ctl_elem_id { 1090 unsigned int numid; /* numeric identifier, zero = invalid */ 1091 snd_ctl_elem_iface_t iface; /* interface identifier */ 1092 unsigned int device; /* device/client number */ 1093 unsigned int subdevice; /* subdevice (substream) number */ 1094 unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* ASCII name of item */ 1095 unsigned int index; /* index of item */ 1096 }; 1097 1098 struct snd_ctl_elem_list { 1099 unsigned int offset; /* W: first element ID to get */ 1100 unsigned int space; /* W: count of element IDs to get */ 1101 unsigned int used; /* R: count of element IDs set */ 1102 unsigned int count; /* R: count of all elements */ 1103 struct snd_ctl_elem_id *pids; /* R: IDs */ 1104 unsigned char reserved[50]; 1105 }; 1106 1107 struct snd_ctl_elem_info { 1108 struct snd_ctl_elem_id id; /* W: element ID */ 1109 snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ 1110 unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ 1111 unsigned int count; /* count of values */ 1112 __kernel_pid_t owner; /* owner's PID of this control */ 1113 union { 1114 struct { 1115 long min; /* R: minimum value */ 1116 long max; /* R: maximum value */ 1117 long step; /* R: step (0 variable) */ 1118 } integer; 1119 struct { 1120 long long min; /* R: minimum value */ 1121 long long max; /* R: maximum value */ 1122 long long step; /* R: step (0 variable) */ 1123 } integer64; 1124 struct { 1125 unsigned int items; /* R: number of items */ 1126 unsigned int item; /* W: item number */ 1127 char name[64]; /* R: value name */ 1128 __u64 names_ptr; /* W: names list (ELEM_ADD only) */ 1129 unsigned int names_length; 1130 } enumerated; 1131 unsigned char reserved[128]; 1132 } value; 1133 unsigned char reserved[64]; 1134 }; 1135 1136 struct snd_ctl_elem_value { 1137 struct snd_ctl_elem_id id; /* W: element ID */ 1138 unsigned int indirect: 1; /* W: indirect access - obsoleted */ 1139 union { 1140 union { 1141 long value[128]; 1142 long *value_ptr; /* obsoleted */ 1143 } integer; 1144 union { 1145 long long value[64]; 1146 long long *value_ptr; /* obsoleted */ 1147 } integer64; 1148 union { 1149 unsigned int item[128]; 1150 unsigned int *item_ptr; /* obsoleted */ 1151 } enumerated; 1152 union { 1153 unsigned char data[512]; 1154 unsigned char *data_ptr; /* obsoleted */ 1155 } bytes; 1156 struct snd_aes_iec958 iec958; 1157 } value; /* RO */ 1158 unsigned char reserved[128]; 1159 }; 1160 1161 struct snd_ctl_tlv { 1162 unsigned int numid; /* control element numeric identification */ 1163 unsigned int length; /* in bytes aligned to 4 */ 1164 unsigned int tlv[0]; /* first TLV */ 1165 }; 1166 1167 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) 1168 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) 1169 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) 1170 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) 1171 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) 1172 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) 1173 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) 1174 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) 1175 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) 1176 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) 1177 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) 1178 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) 1179 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) 1180 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) 1181 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) 1182 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) 1183 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) 1184 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) 1185 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) 1186 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) 1187 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) 1188 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) 1189 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) 1190 #define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE _IOWR('U', 0x43, int) 1191 #define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info) 1192 #define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO _IOWR('U', 0x45, struct snd_ump_block_info) 1193 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) 1194 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) 1195 1196 /* 1197 * Read interface. 1198 */ 1199 1200 enum sndrv_ctl_event_type { 1201 SNDRV_CTL_EVENT_ELEM = 0, 1202 SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, 1203 }; 1204 1205 #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ 1206 #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ 1207 #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ 1208 #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ 1209 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ 1210 1211 struct snd_ctl_event { 1212 int type; /* event type - SNDRV_CTL_EVENT_* */ 1213 union { 1214 struct { 1215 unsigned int mask; 1216 struct snd_ctl_elem_id id; 1217 } elem; 1218 unsigned char data8[60]; 1219 } data; 1220 }; 1221 1222 /* 1223 * Control names 1224 */ 1225 1226 #define SNDRV_CTL_NAME_NONE "" 1227 #define SNDRV_CTL_NAME_PLAYBACK "Playback " 1228 #define SNDRV_CTL_NAME_CAPTURE "Capture " 1229 1230 #define SNDRV_CTL_NAME_IEC958_NONE "" 1231 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" 1232 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" 1233 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" 1234 #define SNDRV_CTL_NAME_IEC958_MASK "Mask" 1235 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" 1236 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" 1237 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" 1238 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what 1239 1240 #endif /* __SOUND_ASOUND_H */ 1241