| /* |
| * Advanced Linux Sound Architecture - ALSA - Driver |
| * Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>, |
| * Abramo Bagnara <abramo@alsa-project.org> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #ifndef __SOUND_ASOUND_H |
| #define __SOUND_ASOUND_H |
| |
| #include <linux/types.h> |
| |
| |
| /* |
| * protocol version |
| */ |
| |
| #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor)) |
| #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff) |
| #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff) |
| #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff) |
| #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \ |
| (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \ |
| (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \ |
| SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion))) |
| |
| /**************************************************************************** |
| * * |
| * Digital audio interface * |
| * * |
| ****************************************************************************/ |
| |
| struct snd_aes_iec958 { |
| unsigned char status[24]; /* AES/IEC958 channel status bits */ |
| unsigned char subcode[147]; /* AES/IEC958 subcode bits */ |
| unsigned char pad; /* nothing */ |
| unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */ |
| }; |
| |
| /**************************************************************************** |
| * * |
| * Section for driver hardware dependent interface - /dev/snd/hw? * |
| * * |
| ****************************************************************************/ |
| |
| #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1) |
| |
| enum { |
| SNDRV_HWDEP_IFACE_OPL2 = 0, |
| SNDRV_HWDEP_IFACE_OPL3, |
| SNDRV_HWDEP_IFACE_OPL4, |
| SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */ |
| SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */ |
| SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */ |
| SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */ |
| SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */ |
| SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */ |
| SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ |
| SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ |
| SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ |
| SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */ |
| SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */ |
| SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */ |
| SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */ |
| SNDRV_HWDEP_IFACE_HDA, /* HD-audio */ |
| SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */ |
| |
| /* Don't forget to change the following: */ |
| SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM |
| }; |
| |
| struct snd_hwdep_info { |
| unsigned int device; /* WR: device number */ |
| int card; /* R: card number */ |
| unsigned char id[64]; /* ID (user selectable) */ |
| unsigned char name[80]; /* hwdep name */ |
| int iface; /* hwdep interface */ |
| unsigned char reserved[64]; /* reserved for future */ |
| }; |
| |
| /* generic DSP loader */ |
| struct snd_hwdep_dsp_status { |
| unsigned int version; /* R: driver-specific version */ |
| unsigned char id[32]; /* R: driver-specific ID string */ |
| unsigned int num_dsps; /* R: number of DSP images to transfer */ |
| unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */ |
| unsigned int chip_ready; /* R: 1 = initialization finished */ |
| unsigned char reserved[16]; /* reserved for future use */ |
| }; |
| |
| struct snd_hwdep_dsp_image { |
| unsigned int index; /* W: DSP index */ |
| unsigned char name[64]; /* W: ID (e.g. file name) */ |
| unsigned char *image; /* W: binary image */ |
| size_t length; /* W: size of image in bytes */ |
| unsigned long driver_data; /* W: driver-specific data */ |
| }; |
| |
| #define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int) |
| #define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info) |
| #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status) |
| #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image) |
| |
| /***************************************************************************** |
| * * |
| * Digital Audio (PCM) interface - /dev/snd/pcm?? * |
| * * |
| *****************************************************************************/ |
| |
| #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9) |
| |
| typedef unsigned long snd_pcm_uframes_t; |
| typedef signed long snd_pcm_sframes_t; |
| |
| enum { |
| SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */ |
| SNDRV_PCM_CLASS_MULTI, /* multichannel device */ |
| SNDRV_PCM_CLASS_MODEM, /* software modem class */ |
| SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */ |
| /* Don't forget to change the following: */ |
| SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER, |
| }; |
| |
| enum { |
| SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */ |
| SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */ |
| /* Don't forget to change the following: */ |
| SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX, |
| }; |
| |
| enum { |
| SNDRV_PCM_STREAM_PLAYBACK = 0, |
| SNDRV_PCM_STREAM_CAPTURE, |
| SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE, |
| }; |
| |
| typedef int __bitwise snd_pcm_access_t; |
| #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((snd_pcm_access_t) 0) /* interleaved mmap */ |
| #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((snd_pcm_access_t) 1) /* noninterleaved mmap */ |
| #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((snd_pcm_access_t) 2) /* complex mmap */ |
| #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((snd_pcm_access_t) 3) /* readi/writei */ |
| #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((snd_pcm_access_t) 4) /* readn/writen */ |
| #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED |
| |
| typedef int __bitwise snd_pcm_format_t; |
| #define SNDRV_PCM_FORMAT_S8 ((snd_pcm_format_t) 0) |
| #define SNDRV_PCM_FORMAT_U8 ((snd_pcm_format_t) 1) |
| #define SNDRV_PCM_FORMAT_S16_LE ((snd_pcm_format_t) 2) |
| #define SNDRV_PCM_FORMAT_S16_BE ((snd_pcm_format_t) 3) |
| #define SNDRV_PCM_FORMAT_U16_LE ((snd_pcm_format_t) 4) |
| #define SNDRV_PCM_FORMAT_U16_BE ((snd_pcm_format_t) 5) |
| #define SNDRV_PCM_FORMAT_S24_LE ((snd_pcm_format_t) 6) /* low three bytes */ |
| #define SNDRV_PCM_FORMAT_S24_BE ((snd_pcm_format_t) 7) /* low three bytes */ |
| #define SNDRV_PCM_FORMAT_U24_LE ((snd_pcm_format_t) 8) /* low three bytes */ |
| #define SNDRV_PCM_FORMAT_U24_BE ((snd_pcm_format_t) 9) /* low three bytes */ |
| #define SNDRV_PCM_FORMAT_S32_LE ((snd_pcm_format_t) 10) |
| #define SNDRV_PCM_FORMAT_S32_BE ((snd_pcm_format_t) 11) |
| #define SNDRV_PCM_FORMAT_U32_LE ((snd_pcm_format_t) 12) |
| #define SNDRV_PCM_FORMAT_U32_BE ((snd_pcm_format_t) 13) |
| #define SNDRV_PCM_FORMAT_FLOAT_LE ((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ |
| #define SNDRV_PCM_FORMAT_FLOAT_BE ((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */ |
| #define SNDRV_PCM_FORMAT_FLOAT64_LE ((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ |
| #define SNDRV_PCM_FORMAT_FLOAT64_BE ((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */ |
| #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */ |
| #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */ |
| #define SNDRV_PCM_FORMAT_MU_LAW ((snd_pcm_format_t) 20) |
| #define SNDRV_PCM_FORMAT_A_LAW ((snd_pcm_format_t) 21) |
| #define SNDRV_PCM_FORMAT_IMA_ADPCM ((snd_pcm_format_t) 22) |
| #define SNDRV_PCM_FORMAT_MPEG ((snd_pcm_format_t) 23) |
| #define SNDRV_PCM_FORMAT_GSM ((snd_pcm_format_t) 24) |
| #define SNDRV_PCM_FORMAT_SPECIAL ((snd_pcm_format_t) 31) |
| #define SNDRV_PCM_FORMAT_S24_3LE ((snd_pcm_format_t) 32) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_S24_3BE ((snd_pcm_format_t) 33) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_U24_3LE ((snd_pcm_format_t) 34) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_U24_3BE ((snd_pcm_format_t) 35) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_S20_3LE ((snd_pcm_format_t) 36) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_S20_3BE ((snd_pcm_format_t) 37) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_U20_3LE ((snd_pcm_format_t) 38) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_U20_3BE ((snd_pcm_format_t) 39) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_S18_3LE ((snd_pcm_format_t) 40) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_S18_3BE ((snd_pcm_format_t) 41) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_U18_3LE ((snd_pcm_format_t) 42) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_U18_3BE ((snd_pcm_format_t) 43) /* in three bytes */ |
| #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_U18_3BE |
| |
| #ifdef SNDRV_LITTLE_ENDIAN |
| #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE |
| #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE |
| #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE |
| #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE |
| #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE |
| #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE |
| #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE |
| #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE |
| #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE |
| #endif |
| #ifdef SNDRV_BIG_ENDIAN |
| #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE |
| #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE |
| #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE |
| #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE |
| #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE |
| #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE |
| #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE |
| #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE |
| #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE |
| #endif |
| |
| typedef int __bitwise snd_pcm_subformat_t; |
| #define SNDRV_PCM_SUBFORMAT_STD ((snd_pcm_subformat_t) 0) |
| #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD |
| |
| #define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */ |
| #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */ |
| #define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */ |
| #define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */ |
| #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */ |
| #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */ |
| #define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */ |
| #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */ |
| #define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */ |
| #define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */ |
| #define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */ |
| #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */ |
| #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */ |
| #define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */ |
| #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000 /* internal kernel flag - FIFO size is in frames */ |
| |
| typedef int __bitwise snd_pcm_state_t; |
| #define SNDRV_PCM_STATE_OPEN ((snd_pcm_state_t) 0) /* stream is open */ |
| #define SNDRV_PCM_STATE_SETUP ((snd_pcm_state_t) 1) /* stream has a setup */ |
| #define SNDRV_PCM_STATE_PREPARED ((snd_pcm_state_t) 2) /* stream is ready to start */ |
| #define SNDRV_PCM_STATE_RUNNING ((snd_pcm_state_t) 3) /* stream is running */ |
| #define SNDRV_PCM_STATE_XRUN ((snd_pcm_state_t) 4) /* stream reached an xrun */ |
| #define SNDRV_PCM_STATE_DRAINING ((snd_pcm_state_t) 5) /* stream is draining */ |
| #define SNDRV_PCM_STATE_PAUSED ((snd_pcm_state_t) 6) /* stream is paused */ |
| #define SNDRV_PCM_STATE_SUSPENDED ((snd_pcm_state_t) 7) /* hardware is suspended */ |
| #define SNDRV_PCM_STATE_DISCONNECTED ((snd_pcm_state_t) 8) /* hardware is disconnected */ |
| #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED |
| |
| enum { |
| SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000, |
| SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000, |
| SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000, |
| }; |
| |
| union snd_pcm_sync_id { |
| unsigned char id[16]; |
| unsigned short id16[8]; |
| unsigned int id32[4]; |
| }; |
| |
| struct snd_pcm_info { |
| unsigned int device; /* RO/WR (control): device number */ |
| unsigned int subdevice; /* RO/WR (control): subdevice number */ |
| int stream; /* RO/WR (control): stream direction */ |
| int card; /* R: card number */ |
| unsigned char id[64]; /* ID (user selectable) */ |
| unsigned char name[80]; /* name of this device */ |
| unsigned char subname[32]; /* subdevice name */ |
| int dev_class; /* SNDRV_PCM_CLASS_* */ |
| int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */ |
| unsigned int subdevices_count; |
| unsigned int subdevices_avail; |
| union snd_pcm_sync_id sync; /* hardware synchronization ID */ |
| unsigned char reserved[64]; /* reserved for future... */ |
| }; |
| |
| typedef int snd_pcm_hw_param_t; |
| #define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */ |
| #define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */ |
| #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */ |
| #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS |
| #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT |
| |
| #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */ |
| #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */ |
| #define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */ |
| #define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */ |
| #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between |
| * interrupts in us |
| */ |
| #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between |
| * interrupts |
| */ |
| #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between |
| * interrupts |
| */ |
| #define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per |
| * buffer |
| */ |
| #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer |
| * in us |
| */ |
| #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */ |
| #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */ |
| #define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */ |
| #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS |
| #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME |
| |
| #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */ |
| |
| struct snd_interval { |
| unsigned int min, max; |
| unsigned int openmin:1, |
| openmax:1, |
| integer:1, |
| empty:1; |
| }; |
| |
| #define SNDRV_MASK_MAX 256 |
| |
| struct snd_mask { |
| __u32 bits[(SNDRV_MASK_MAX+31)/32]; |
| }; |
| |
| struct snd_pcm_hw_params { |
| unsigned int flags; |
| struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - |
| SNDRV_PCM_HW_PARAM_FIRST_MASK + 1]; |
| struct snd_mask mres[5]; /* reserved masks */ |
| struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - |
| SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1]; |
| struct snd_interval ires[9]; /* reserved intervals */ |
| unsigned int rmask; /* W: requested masks */ |
| unsigned int cmask; /* R: changed masks */ |
| unsigned int info; /* R: Info flags for returned setup */ |
| unsigned int msbits; /* R: used most significant bits */ |
| unsigned int rate_num; /* R: rate numerator */ |
| unsigned int rate_den; /* R: rate denominator */ |
| snd_pcm_uframes_t fifo_size; /* R: chip FIFO size in frames */ |
| unsigned char reserved[64]; /* reserved for future */ |
| }; |
| |
| enum { |
| SNDRV_PCM_TSTAMP_NONE = 0, |
| SNDRV_PCM_TSTAMP_ENABLE, |
| SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE, |
| }; |
| |
| struct snd_pcm_sw_params { |
| int tstamp_mode; /* timestamp mode */ |
| unsigned int period_step; |
| unsigned int sleep_min; /* min ticks to sleep */ |
| snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */ |
| snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */ |
| snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */ |
| snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */ |
| snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */ |
| snd_pcm_uframes_t silence_size; /* silence block size */ |
| snd_pcm_uframes_t boundary; /* pointers wrap point */ |
| unsigned char reserved[64]; /* reserved for future */ |
| }; |
| |
| struct snd_pcm_channel_info { |
| unsigned int channel; |
| __kernel_off_t offset; /* mmap offset */ |
| unsigned int first; /* offset to first sample in bits */ |
| unsigned int step; /* samples distance in bits */ |
| }; |
| |
| struct snd_pcm_status { |
| snd_pcm_state_t state; /* stream state */ |
| struct timespec trigger_tstamp; /* time when stream was started/stopped/paused */ |
| struct timespec tstamp; /* reference timestamp */ |
| snd_pcm_uframes_t appl_ptr; /* appl ptr */ |
| snd_pcm_uframes_t hw_ptr; /* hw ptr */ |
| snd_pcm_sframes_t delay; /* current delay in frames */ |
| snd_pcm_uframes_t avail; /* number of frames available */ |
| snd_pcm_uframes_t avail_max; /* max frames available on hw since last status */ |
| snd_pcm_uframes_t overrange; /* count of ADC (capture) overrange detections from last status */ |
| snd_pcm_state_t suspended_state; /* suspended stream state */ |
| unsigned char reserved[60]; /* must be filled with zero */ |
| }; |
| |
| struct snd_pcm_mmap_status { |
| snd_pcm_state_t state; /* RO: state - SNDRV_PCM_STATE_XXXX */ |
| int pad1; /* Needed for 64 bit alignment */ |
| snd_pcm_uframes_t hw_ptr; /* RO: hw ptr (0...boundary-1) */ |
| struct timespec tstamp; /* Timestamp */ |
| snd_pcm_state_t suspended_state; /* RO: suspended stream state */ |
| }; |
| |
| struct snd_pcm_mmap_control { |
| snd_pcm_uframes_t appl_ptr; /* RW: appl ptr (0...boundary-1) */ |
| snd_pcm_uframes_t avail_min; /* RW: min available frames for wakeup */ |
| }; |
| |
| #define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0) /* execute hwsync */ |
| #define SNDRV_PCM_SYNC_PTR_APPL (1<<1) /* get appl_ptr from driver (r/w op) */ |
| #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2) /* get avail_min from driver */ |
| |
| struct snd_pcm_sync_ptr { |
| unsigned int flags; |
| union { |
| struct snd_pcm_mmap_status status; |
| unsigned char reserved[64]; |
| } s; |
| union { |
| struct snd_pcm_mmap_control control; |
| unsigned char reserved[64]; |
| } c; |
| }; |
| |
| struct snd_xferi { |
| snd_pcm_sframes_t result; |
| void *buf; |
| snd_pcm_uframes_t frames; |
| }; |
| |
| struct snd_xfern { |
| snd_pcm_sframes_t result; |
| void * *bufs; |
| snd_pcm_uframes_t frames; |
| }; |
| |
| enum { |
| SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0, /* gettimeofday equivalent */ |
| SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, /* posix_clock_monotonic equivalent */ |
| SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC, |
| }; |
| |
| #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int) |
| #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info) |
| #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int) |
| #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int) |
| #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params) |
| #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params) |
| #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) |
| #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params) |
| #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status) |
| #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t) |
| #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22) |
| #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr) |
| #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info) |
| #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40) |
| #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41) |
| #define SNDRV_PCM_IOCTL_START _IO('A', 0x42) |
| #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43) |
| #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44) |
| #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int) |
| #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t) |
| #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47) |
| #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48) |
| #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t) |
| #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi) |
| #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi) |
| #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) |
| #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern) |
| #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int) |
| #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61) |
| |
| /***************************************************************************** |
| * * |
| * MIDI v1.0 interface * |
| * * |
| *****************************************************************************/ |
| |
| /* |
| * Raw MIDI section - /dev/snd/midi?? |
| */ |
| |
| #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0) |
| |
| enum { |
| SNDRV_RAWMIDI_STREAM_OUTPUT = 0, |
| SNDRV_RAWMIDI_STREAM_INPUT, |
| SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT, |
| }; |
| |
| #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001 |
| #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002 |
| #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004 |
| |
| struct snd_rawmidi_info { |
| unsigned int device; /* RO/WR (control): device number */ |
| unsigned int subdevice; /* RO/WR (control): subdevice number */ |
| int stream; /* WR: stream */ |
| int card; /* R: card number */ |
| unsigned int flags; /* SNDRV_RAWMIDI_INFO_XXXX */ |
| unsigned char id[64]; /* ID (user selectable) */ |
| unsigned char name[80]; /* name of device */ |
| unsigned char subname[32]; /* name of active or selected subdevice */ |
| unsigned int subdevices_count; |
| unsigned int subdevices_avail; |
| unsigned char reserved[64]; /* reserved for future use */ |
| }; |
| |
| struct snd_rawmidi_params { |
| int stream; |
| size_t buffer_size; /* queue size in bytes */ |
| size_t avail_min; /* minimum avail bytes for wakeup */ |
| unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */ |
| unsigned char reserved[16]; /* reserved for future use */ |
| }; |
| |
| struct snd_rawmidi_status { |
| int stream; |
| struct timespec tstamp; /* Timestamp */ |
| size_t avail; /* available bytes */ |
| size_t xruns; /* count of overruns since last status (in bytes) */ |
| unsigned char reserved[16]; /* reserved for future use */ |
| }; |
| |
| #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int) |
| #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info) |
| #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params) |
| #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status) |
| #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int) |
| #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int) |
| |
| /* |
| * Timer section - /dev/snd/timer |
| */ |
| |
| #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 5) |
| |
| enum { |
| SNDRV_TIMER_CLASS_NONE = -1, |
| SNDRV_TIMER_CLASS_SLAVE = 0, |
| SNDRV_TIMER_CLASS_GLOBAL, |
| SNDRV_TIMER_CLASS_CARD, |
| SNDRV_TIMER_CLASS_PCM, |
| SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM, |
| }; |
| |
| /* slave timer classes */ |
| enum { |
| SNDRV_TIMER_SCLASS_NONE = 0, |
| SNDRV_TIMER_SCLASS_APPLICATION, |
| SNDRV_TIMER_SCLASS_SEQUENCER, /* alias */ |
| SNDRV_TIMER_SCLASS_OSS_SEQUENCER, /* alias */ |
| SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER, |
| }; |
| |
| /* global timers (device member) */ |
| #define SNDRV_TIMER_GLOBAL_SYSTEM 0 |
| #define SNDRV_TIMER_GLOBAL_RTC 1 |
| #define SNDRV_TIMER_GLOBAL_HPET 2 |
| #define SNDRV_TIMER_GLOBAL_HRTIMER 3 |
| |
| /* info flags */ |
| #define SNDRV_TIMER_FLG_SLAVE (1<<0) /* cannot be controlled */ |
| |
| struct snd_timer_id { |
| int dev_class; |
| int dev_sclass; |
| int card; |
| int device; |
| int subdevice; |
| }; |
| |
| struct snd_timer_ginfo { |
| struct snd_timer_id tid; /* requested timer ID */ |
| unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ |
| int card; /* card number */ |
| unsigned char id[64]; /* timer identification */ |
| unsigned char name[80]; /* timer name */ |
| unsigned long reserved0; /* reserved for future use */ |
| unsigned long resolution; /* average period resolution in ns */ |
| unsigned long resolution_min; /* minimal period resolution in ns */ |
| unsigned long resolution_max; /* maximal period resolution in ns */ |
| unsigned int clients; /* active timer clients */ |
| unsigned char reserved[32]; |
| }; |
| |
| struct snd_timer_gparams { |
| struct snd_timer_id tid; /* requested timer ID */ |
| unsigned long period_num; /* requested precise period duration (in seconds) - numerator */ |
| unsigned long period_den; /* requested precise period duration (in seconds) - denominator */ |
| unsigned char reserved[32]; |
| }; |
| |
| struct snd_timer_gstatus { |
| struct snd_timer_id tid; /* requested timer ID */ |
| unsigned long resolution; /* current period resolution in ns */ |
| unsigned long resolution_num; /* precise current period resolution (in seconds) - numerator */ |
| unsigned long resolution_den; /* precise current period resolution (in seconds) - denominator */ |
| unsigned char reserved[32]; |
| }; |
| |
| struct snd_timer_select { |
| struct snd_timer_id id; /* bind to timer ID */ |
| unsigned char reserved[32]; /* reserved */ |
| }; |
| |
| struct snd_timer_info { |
| unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */ |
| int card; /* card number */ |
| unsigned char id[64]; /* timer identificator */ |
| unsigned char name[80]; /* timer name */ |
| unsigned long reserved0; /* reserved for future use */ |
| unsigned long resolution; /* average period resolution in ns */ |
| unsigned char reserved[64]; /* reserved */ |
| }; |
| |
| #define SNDRV_TIMER_PSFLG_AUTO (1<<0) /* auto start, otherwise one-shot */ |
| #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1) /* exclusive use, precise start/stop/pause/continue */ |
| #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2) /* write early event to the poll queue */ |
| |
| struct snd_timer_params { |
| unsigned int flags; /* flags - SNDRV_MIXER_PSFLG_* */ |
| unsigned int ticks; /* requested resolution in ticks */ |
| unsigned int queue_size; /* total size of queue (32-1024) */ |
| unsigned int reserved0; /* reserved, was: failure locations */ |
| unsigned int filter; /* event filter (bitmask of SNDRV_TIMER_EVENT_*) */ |
| unsigned char reserved[60]; /* reserved */ |
| }; |
| |
| struct snd_timer_status { |
| struct timespec tstamp; /* Timestamp - last update */ |
| unsigned int resolution; /* current period resolution in ns */ |
| unsigned int lost; /* counter of master tick lost */ |
| unsigned int overrun; /* count of read queue overruns */ |
| unsigned int queue; /* used queue size */ |
| unsigned char reserved[64]; /* reserved */ |
| }; |
| |
| #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) |
| #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id) |
| #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int) |
| #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo) |
| #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams) |
| #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus) |
| #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select) |
| #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info) |
| #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params) |
| #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status) |
| /* The following four ioctls are changed since 1.0.9 due to confliction */ |
| #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0) |
| #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1) |
| #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2) |
| #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3) |
| |
| struct snd_timer_read { |
| unsigned int resolution; |
| unsigned int ticks; |
| }; |
| |
| enum { |
| SNDRV_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */ |
| SNDRV_TIMER_EVENT_TICK, /* val = ticks */ |
| SNDRV_TIMER_EVENT_START, /* val = resolution in ns */ |
| SNDRV_TIMER_EVENT_STOP, /* val = 0 */ |
| SNDRV_TIMER_EVENT_CONTINUE, /* val = resolution in ns */ |
| SNDRV_TIMER_EVENT_PAUSE, /* val = 0 */ |
| SNDRV_TIMER_EVENT_EARLY, /* val = 0, early event */ |
| SNDRV_TIMER_EVENT_SUSPEND, /* val = 0 */ |
| SNDRV_TIMER_EVENT_RESUME, /* val = resolution in ns */ |
| /* master timer events for slave timer instances */ |
| SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10, |
| SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10, |
| SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10, |
| SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10, |
| SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10, |
| SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10, |
| }; |
| |
| struct snd_timer_tread { |
| int event; |
| struct timespec tstamp; |
| unsigned int val; |
| }; |
| |
| /**************************************************************************** |
| * * |
| * Section for driver control interface - /dev/snd/control? * |
| * * |
| ****************************************************************************/ |
| |
| #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6) |
| |
| struct snd_ctl_card_info { |
| int card; /* card number */ |
| int pad; /* reserved for future (was type) */ |
| unsigned char id[16]; /* ID of card (user selectable) */ |
| unsigned char driver[16]; /* Driver name */ |
| unsigned char name[32]; /* Short name of soundcard */ |
| unsigned char longname[80]; /* name + info text about soundcard */ |
| unsigned char reserved_[16]; /* reserved for future (was ID of mixer) */ |
| unsigned char mixername[80]; /* visual mixer identification */ |
| unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ |
| }; |
| |
| typedef int __bitwise snd_ctl_elem_type_t; |
| #define SNDRV_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) 0) /* invalid */ |
| #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) 1) /* boolean type */ |
| #define SNDRV_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) 2) /* integer type */ |
| #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) 3) /* enumerated type */ |
| #define SNDRV_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) 4) /* byte array */ |
| #define SNDRV_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */ |
| #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((snd_ctl_elem_type_t) 6) /* 64-bit integer type */ |
| #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 |
| |
| typedef int __bitwise snd_ctl_elem_iface_t; |
| #define SNDRV_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) 0) /* global control */ |
| #define SNDRV_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) 1) /* hardware dependent device */ |
| #define SNDRV_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) 2) /* virtual mixer device */ |
| #define SNDRV_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) 3) /* PCM device */ |
| #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) 4) /* RawMidi device */ |
| #define SNDRV_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) 5) /* timer device */ |
| #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) 6) /* sequencer client */ |
| #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER |
| |
| #define SNDRV_CTL_ELEM_ACCESS_READ (1<<0) |
| #define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1) |
| #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE) |
| #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2) /* control value may be changed without a notification */ |
| #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3) /* when was control changed */ |
| #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4) /* TLV read is possible */ |
| #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5) /* TLV write is possible */ |
| #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) |
| #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */ |
| #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */ |
| #define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */ |
| #define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */ |
| #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */ |
| #define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */ |
| /* bits 30 and 31 are obsoleted (for indirect access) */ |
| |
| /* for further details see the ACPI and PCI power management specification */ |
| #define SNDRV_CTL_POWER_D0 0x0000 /* full On */ |
| #define SNDRV_CTL_POWER_D1 0x0100 /* partial On */ |
| #define SNDRV_CTL_POWER_D2 0x0200 /* partial On */ |
| #define SNDRV_CTL_POWER_D3 0x0300 /* Off */ |
| #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */ |
| #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */ |
| |
| struct snd_ctl_elem_id { |
| unsigned int numid; /* numeric identifier, zero = invalid */ |
| snd_ctl_elem_iface_t iface; /* interface identifier */ |
| unsigned int device; /* device/client number */ |
| unsigned int subdevice; /* subdevice (substream) number */ |
| unsigned char name[44]; /* ASCII name of item */ |
| unsigned int index; /* index of item */ |
| }; |
| |
| struct snd_ctl_elem_list { |
| unsigned int offset; /* W: first element ID to get */ |
| unsigned int space; /* W: count of element IDs to get */ |
| unsigned int used; /* R: count of element IDs set */ |
| unsigned int count; /* R: count of all elements */ |
| struct snd_ctl_elem_id *pids; /* R: IDs */ |
| unsigned char reserved[50]; |
| }; |
| |
| struct snd_ctl_elem_info { |
| struct snd_ctl_elem_id id; /* W: element ID */ |
| snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */ |
| unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */ |
| unsigned int count; /* count of values */ |
| __kernel_pid_t owner; /* owner's PID of this control */ |
| union { |
| struct { |
| long min; /* R: minimum value */ |
| long max; /* R: maximum value */ |
| long step; /* R: step (0 variable) */ |
| } integer; |
| struct { |
| long long min; /* R: minimum value */ |
| long long max; /* R: maximum value */ |
| long long step; /* R: step (0 variable) */ |
| } integer64; |
| struct { |
| unsigned int items; /* R: number of items */ |
| unsigned int item; /* W: item number */ |
| char name[64]; /* R: value name */ |
| } enumerated; |
| unsigned char reserved[128]; |
| } value; |
| union { |
| unsigned short d[4]; /* dimensions */ |
| unsigned short *d_ptr; /* indirect - obsoleted */ |
| } dimen; |
| unsigned char reserved[64-4*sizeof(unsigned short)]; |
| }; |
| |
| struct snd_ctl_elem_value { |
| struct snd_ctl_elem_id id; /* W: element ID */ |
| unsigned int indirect: 1; /* W: indirect access - obsoleted */ |
| union { |
| union { |
| long value[128]; |
| long *value_ptr; /* obsoleted */ |
| } integer; |
| union { |
| long long value[64]; |
| long long *value_ptr; /* obsoleted */ |
| } integer64; |
| union { |
| unsigned int item[128]; |
| unsigned int *item_ptr; /* obsoleted */ |
| } enumerated; |
| union { |
| unsigned char data[512]; |
| unsigned char *data_ptr; /* obsoleted */ |
| } bytes; |
| struct snd_aes_iec958 iec958; |
| } value; /* RO */ |
| struct timespec tstamp; |
| unsigned char reserved[128-sizeof(struct timespec)]; |
| }; |
| |
| struct snd_ctl_tlv { |
| unsigned int numid; /* control element numeric identification */ |
| unsigned int length; /* in bytes aligned to 4 */ |
| unsigned int tlv[0]; /* first TLV */ |
| }; |
| |
| #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int) |
| #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info) |
| #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list) |
| #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info) |
| #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value) |
| #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value) |
| #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id) |
| #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id) |
| #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int) |
| #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info) |
| #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info) |
| #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id) |
| #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv) |
| #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv) |
| #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv) |
| #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int) |
| #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info) |
| #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int) |
| #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info) |
| #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int) |
| #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int) |
| #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info) |
| #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int) |
| #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int) |
| #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int) |
| |
| /* |
| * Read interface. |
| */ |
| |
| enum sndrv_ctl_event_type { |
| SNDRV_CTL_EVENT_ELEM = 0, |
| SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM, |
| }; |
| |
| #define SNDRV_CTL_EVENT_MASK_VALUE (1<<0) /* element value was changed */ |
| #define SNDRV_CTL_EVENT_MASK_INFO (1<<1) /* element info was changed */ |
| #define SNDRV_CTL_EVENT_MASK_ADD (1<<2) /* element was added */ |
| #define SNDRV_CTL_EVENT_MASK_TLV (1<<3) /* element TLV tree was changed */ |
| #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U) /* element was removed */ |
| |
| struct snd_ctl_event { |
| int type; /* event type - SNDRV_CTL_EVENT_* */ |
| union { |
| struct { |
| unsigned int mask; |
| struct snd_ctl_elem_id id; |
| } elem; |
| unsigned char data8[60]; |
| } data; |
| }; |
| |
| /* |
| * Control names |
| */ |
| |
| #define SNDRV_CTL_NAME_NONE "" |
| #define SNDRV_CTL_NAME_PLAYBACK "Playback " |
| #define SNDRV_CTL_NAME_CAPTURE "Capture " |
| |
| #define SNDRV_CTL_NAME_IEC958_NONE "" |
| #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch" |
| #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume" |
| #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default" |
| #define SNDRV_CTL_NAME_IEC958_MASK "Mask" |
| #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask" |
| #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask" |
| #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream" |
| #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what |
| |
| #endif /* __SOUND_ASOUND_H */ |