mirror of
https://github.com/edk2-porting/linux-next.git
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bbaf5e9733
Added the hrtimer backend for ALSA timer interface. It can be used for the sequencer timer source. Signed-off-by: Takashi Iwai <tiwai@suse.de>
937 lines
39 KiB
C
937 lines
39 KiB
C
/*
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* Advanced Linux Sound Architecture - ALSA - Driver
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* Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
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* Abramo Bagnara <abramo@alsa-project.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __SOUND_ASOUND_H
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#define __SOUND_ASOUND_H
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#ifdef __KERNEL__
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#include <linux/time.h>
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#include <asm/byteorder.h>
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#ifdef __LITTLE_ENDIAN
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#define SNDRV_LITTLE_ENDIAN
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#else
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#ifdef __BIG_ENDIAN
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#define SNDRV_BIG_ENDIAN
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#else
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#error "Unsupported endian..."
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#endif
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#endif
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#endif /* __KERNEL__ **/
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/*
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* protocol version
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*/
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#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
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#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
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#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
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#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
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#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
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(SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
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(SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
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SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
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/****************************************************************************
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* *
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* Digital audio interface *
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* *
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****************************************************************************/
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struct snd_aes_iec958 {
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unsigned char status[24]; /* AES/IEC958 channel status bits */
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unsigned char subcode[147]; /* AES/IEC958 subcode bits */
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unsigned char pad; /* nothing */
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unsigned char dig_subframe[4]; /* AES/IEC958 subframe bits */
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};
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/****************************************************************************
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* *
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* Section for driver hardware dependent interface - /dev/snd/hw? *
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* *
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****************************************************************************/
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#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
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enum {
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SNDRV_HWDEP_IFACE_OPL2 = 0,
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SNDRV_HWDEP_IFACE_OPL3,
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SNDRV_HWDEP_IFACE_OPL4,
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SNDRV_HWDEP_IFACE_SB16CSP, /* Creative Signal Processor */
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SNDRV_HWDEP_IFACE_EMU10K1, /* FX8010 processor in EMU10K1 chip */
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SNDRV_HWDEP_IFACE_YSS225, /* Yamaha FX processor */
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SNDRV_HWDEP_IFACE_ICS2115, /* Wavetable synth */
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SNDRV_HWDEP_IFACE_SSCAPE, /* Ensoniq SoundScape ISA card (MC68EC000) */
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SNDRV_HWDEP_IFACE_VX, /* Digigram VX cards */
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SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */
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SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */
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SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
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SNDRV_HWDEP_IFACE_BLUETOOTH, /* Bluetooth audio */
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SNDRV_HWDEP_IFACE_USX2Y_PCM, /* Tascam US122, US224 & US428 rawusb pcm */
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SNDRV_HWDEP_IFACE_PCXHR, /* Digigram PCXHR */
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SNDRV_HWDEP_IFACE_SB_RC, /* SB Extigy/Audigy2NX remote control */
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SNDRV_HWDEP_IFACE_HDA, /* HD-audio */
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SNDRV_HWDEP_IFACE_USB_STREAM, /* direct access to usb stream */
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/* Don't forget to change the following: */
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SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM
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};
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struct snd_hwdep_info {
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unsigned int device; /* WR: device number */
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int card; /* R: card number */
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unsigned char id[64]; /* ID (user selectable) */
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unsigned char name[80]; /* hwdep name */
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int iface; /* hwdep interface */
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unsigned char reserved[64]; /* reserved for future */
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};
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/* generic DSP loader */
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struct snd_hwdep_dsp_status {
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unsigned int version; /* R: driver-specific version */
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unsigned char id[32]; /* R: driver-specific ID string */
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unsigned int num_dsps; /* R: number of DSP images to transfer */
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unsigned int dsp_loaded; /* R: bit flags indicating the loaded DSPs */
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unsigned int chip_ready; /* R: 1 = initialization finished */
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unsigned char reserved[16]; /* reserved for future use */
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};
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struct snd_hwdep_dsp_image {
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unsigned int index; /* W: DSP index */
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unsigned char name[64]; /* W: ID (e.g. file name) */
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unsigned char __user *image; /* W: binary image */
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size_t length; /* W: size of image in bytes */
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unsigned long driver_data; /* W: driver-specific data */
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};
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enum {
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SNDRV_HWDEP_IOCTL_PVERSION = _IOR ('H', 0x00, int),
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SNDRV_HWDEP_IOCTL_INFO = _IOR ('H', 0x01, struct snd_hwdep_info),
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SNDRV_HWDEP_IOCTL_DSP_STATUS = _IOR('H', 0x02, struct snd_hwdep_dsp_status),
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SNDRV_HWDEP_IOCTL_DSP_LOAD = _IOW('H', 0x03, struct snd_hwdep_dsp_image)
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};
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/*****************************************************************************
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* *
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* Digital Audio (PCM) interface - /dev/snd/pcm?? *
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* *
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*****************************************************************************/
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#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 9)
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typedef unsigned long snd_pcm_uframes_t;
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typedef signed long snd_pcm_sframes_t;
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enum {
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SNDRV_PCM_CLASS_GENERIC = 0, /* standard mono or stereo device */
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SNDRV_PCM_CLASS_MULTI, /* multichannel device */
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SNDRV_PCM_CLASS_MODEM, /* software modem class */
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SNDRV_PCM_CLASS_DIGITIZER, /* digitizer class */
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/* Don't forget to change the following: */
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SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
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};
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enum {
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SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
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SNDRV_PCM_SUBCLASS_MULTI_MIX, /* multichannel subdevices are mixed together */
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/* Don't forget to change the following: */
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SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
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};
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enum {
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SNDRV_PCM_STREAM_PLAYBACK = 0,
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SNDRV_PCM_STREAM_CAPTURE,
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SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
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};
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typedef int __bitwise snd_pcm_access_t;
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#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0) /* interleaved mmap */
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#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1) /* noninterleaved mmap */
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#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2) /* complex mmap */
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#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3) /* readi/writei */
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#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4) /* readn/writen */
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#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
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typedef int __bitwise snd_pcm_format_t;
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#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
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#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
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#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
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#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
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#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
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#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
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#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6) /* low three bytes */
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#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7) /* low three bytes */
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#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8) /* low three bytes */
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#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9) /* low three bytes */
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#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
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#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
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#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
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#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
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#define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
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#define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
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#define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
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#define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
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#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
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#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
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#define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
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#define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
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#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
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#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
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#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
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#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
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#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */
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#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */
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#define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34) /* in three bytes */
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#define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35) /* in three bytes */
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#define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36) /* in three bytes */
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#define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37) /* in three bytes */
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#define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38) /* in three bytes */
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#define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39) /* in three bytes */
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#define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40) /* in three bytes */
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#define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41) /* in three bytes */
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#define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42) /* in three bytes */
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#define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43) /* in three bytes */
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#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_U18_3BE
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#ifdef SNDRV_LITTLE_ENDIAN
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#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
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#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
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#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
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#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
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#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
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#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
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#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
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#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
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#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
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#endif
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#ifdef SNDRV_BIG_ENDIAN
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#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
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#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
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#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
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#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
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#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
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#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
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#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
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#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
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#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
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#endif
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typedef int __bitwise snd_pcm_subformat_t;
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#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
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#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
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#define SNDRV_PCM_INFO_MMAP 0x00000001 /* hardware supports mmap */
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#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002 /* period data are valid during transfer */
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#define SNDRV_PCM_INFO_DOUBLE 0x00000004 /* Double buffering needed for PCM start/stop */
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#define SNDRV_PCM_INFO_BATCH 0x00000010 /* double buffering */
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#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100 /* channels are interleaved */
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#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200 /* channels are not interleaved */
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#define SNDRV_PCM_INFO_COMPLEX 0x00000400 /* complex frame organization (mmap only) */
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#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000 /* hardware transfer block of samples */
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#define SNDRV_PCM_INFO_OVERRANGE 0x00020000 /* hardware supports ADC (capture) overrange detection */
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#define SNDRV_PCM_INFO_RESUME 0x00040000 /* hardware supports stream resume after suspend */
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#define SNDRV_PCM_INFO_PAUSE 0x00080000 /* pause ioctl is supported */
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#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000 /* only half duplex */
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#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000 /* playback and capture stream are somewhat correlated */
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#define SNDRV_PCM_INFO_SYNC_START 0x00400000 /* pcm support some kind of sync go */
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typedef int __bitwise snd_pcm_state_t;
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#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0) /* stream is open */
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#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1) /* stream has a setup */
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#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2) /* stream is ready to start */
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#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3) /* stream is running */
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#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4) /* stream reached an xrun */
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#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5) /* stream is draining */
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#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6) /* stream is paused */
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#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7) /* hardware is suspended */
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#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8) /* hardware is disconnected */
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#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
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enum {
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SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
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SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
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SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
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};
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union snd_pcm_sync_id {
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unsigned char id[16];
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unsigned short id16[8];
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unsigned int id32[4];
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};
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struct snd_pcm_info {
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unsigned int device; /* RO/WR (control): device number */
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unsigned int subdevice; /* RO/WR (control): subdevice number */
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int stream; /* RO/WR (control): stream direction */
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int card; /* R: card number */
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unsigned char id[64]; /* ID (user selectable) */
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unsigned char name[80]; /* name of this device */
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unsigned char subname[32]; /* subdevice name */
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int dev_class; /* SNDRV_PCM_CLASS_* */
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int dev_subclass; /* SNDRV_PCM_SUBCLASS_* */
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unsigned int subdevices_count;
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unsigned int subdevices_avail;
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union snd_pcm_sync_id sync; /* hardware synchronization ID */
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unsigned char reserved[64]; /* reserved for future... */
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};
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typedef int snd_pcm_hw_param_t;
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#define SNDRV_PCM_HW_PARAM_ACCESS 0 /* Access type */
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#define SNDRV_PCM_HW_PARAM_FORMAT 1 /* Format */
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#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2 /* Subformat */
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#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
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#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
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#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8 /* Bits per sample */
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#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9 /* Bits per frame */
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#define SNDRV_PCM_HW_PARAM_CHANNELS 10 /* Channels */
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#define SNDRV_PCM_HW_PARAM_RATE 11 /* Approx rate */
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#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12 /* Approx distance between
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* interrupts in us
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*/
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#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13 /* Approx frames between
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* interrupts
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*/
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#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14 /* Approx bytes between
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* interrupts
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*/
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#define SNDRV_PCM_HW_PARAM_PERIODS 15 /* Approx interrupts per
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* buffer
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*/
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#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16 /* Approx duration of buffer
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* in us
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*/
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#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17 /* Size of buffer in frames */
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#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18 /* Size of buffer in bytes */
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#define SNDRV_PCM_HW_PARAM_TICK_TIME 19 /* Approx tick duration in us */
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#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
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#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
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#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
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struct snd_interval {
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unsigned int min, max;
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unsigned int openmin:1,
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openmax:1,
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integer:1,
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empty:1;
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};
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#define SNDRV_MASK_MAX 256
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struct snd_mask {
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u_int32_t bits[(SNDRV_MASK_MAX+31)/32];
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};
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struct snd_pcm_hw_params {
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unsigned int flags;
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struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
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SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
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struct snd_mask mres[5]; /* reserved masks */
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struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
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SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
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struct snd_interval ires[9]; /* reserved intervals */
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unsigned int rmask; /* W: requested masks */
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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;
|
|
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 __user *buf;
|
|
snd_pcm_uframes_t frames;
|
|
};
|
|
|
|
struct snd_xfern {
|
|
snd_pcm_sframes_t result;
|
|
void __user * __user *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,
|
|
};
|
|
|
|
enum {
|
|
SNDRV_PCM_IOCTL_PVERSION = _IOR('A', 0x00, int),
|
|
SNDRV_PCM_IOCTL_INFO = _IOR('A', 0x01, struct snd_pcm_info),
|
|
SNDRV_PCM_IOCTL_TSTAMP = _IOW('A', 0x02, int),
|
|
SNDRV_PCM_IOCTL_TTSTAMP = _IOW('A', 0x03, int),
|
|
SNDRV_PCM_IOCTL_HW_REFINE = _IOWR('A', 0x10, struct snd_pcm_hw_params),
|
|
SNDRV_PCM_IOCTL_HW_PARAMS = _IOWR('A', 0x11, struct snd_pcm_hw_params),
|
|
SNDRV_PCM_IOCTL_HW_FREE = _IO('A', 0x12),
|
|
SNDRV_PCM_IOCTL_SW_PARAMS = _IOWR('A', 0x13, struct snd_pcm_sw_params),
|
|
SNDRV_PCM_IOCTL_STATUS = _IOR('A', 0x20, struct snd_pcm_status),
|
|
SNDRV_PCM_IOCTL_DELAY = _IOR('A', 0x21, snd_pcm_sframes_t),
|
|
SNDRV_PCM_IOCTL_HWSYNC = _IO('A', 0x22),
|
|
SNDRV_PCM_IOCTL_SYNC_PTR = _IOWR('A', 0x23, struct snd_pcm_sync_ptr),
|
|
SNDRV_PCM_IOCTL_CHANNEL_INFO = _IOR('A', 0x32, struct snd_pcm_channel_info),
|
|
SNDRV_PCM_IOCTL_PREPARE = _IO('A', 0x40),
|
|
SNDRV_PCM_IOCTL_RESET = _IO('A', 0x41),
|
|
SNDRV_PCM_IOCTL_START = _IO('A', 0x42),
|
|
SNDRV_PCM_IOCTL_DROP = _IO('A', 0x43),
|
|
SNDRV_PCM_IOCTL_DRAIN = _IO('A', 0x44),
|
|
SNDRV_PCM_IOCTL_PAUSE = _IOW('A', 0x45, int),
|
|
SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t),
|
|
SNDRV_PCM_IOCTL_RESUME = _IO('A', 0x47),
|
|
SNDRV_PCM_IOCTL_XRUN = _IO('A', 0x48),
|
|
SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t),
|
|
SNDRV_PCM_IOCTL_WRITEI_FRAMES = _IOW('A', 0x50, struct snd_xferi),
|
|
SNDRV_PCM_IOCTL_READI_FRAMES = _IOR('A', 0x51, struct snd_xferi),
|
|
SNDRV_PCM_IOCTL_WRITEN_FRAMES = _IOW('A', 0x52, struct snd_xfern),
|
|
SNDRV_PCM_IOCTL_READN_FRAMES = _IOR('A', 0x53, struct snd_xfern),
|
|
SNDRV_PCM_IOCTL_LINK = _IOW('A', 0x60, int),
|
|
SNDRV_PCM_IOCTL_UNLINK = _IO('A', 0x61),
|
|
};
|
|
|
|
/* Trick to make alsa-lib/acinclude.m4 happy */
|
|
#define SNDRV_PCM_IOCTL_REWIND SNDRV_PCM_IOCTL_REWIND
|
|
|
|
/*****************************************************************************
|
|
* *
|
|
* 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 */
|
|
};
|
|
|
|
enum {
|
|
SNDRV_RAWMIDI_IOCTL_PVERSION = _IOR('W', 0x00, int),
|
|
SNDRV_RAWMIDI_IOCTL_INFO = _IOR('W', 0x01, struct snd_rawmidi_info),
|
|
SNDRV_RAWMIDI_IOCTL_PARAMS = _IOWR('W', 0x10, struct snd_rawmidi_params),
|
|
SNDRV_RAWMIDI_IOCTL_STATUS = _IOWR('W', 0x20, struct snd_rawmidi_status),
|
|
SNDRV_RAWMIDI_IOCTL_DROP = _IOW('W', 0x30, int),
|
|
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 */
|
|
};
|
|
|
|
enum {
|
|
SNDRV_TIMER_IOCTL_PVERSION = _IOR('T', 0x00, int),
|
|
SNDRV_TIMER_IOCTL_NEXT_DEVICE = _IOWR('T', 0x01, struct snd_timer_id),
|
|
SNDRV_TIMER_IOCTL_TREAD = _IOW('T', 0x02, int),
|
|
SNDRV_TIMER_IOCTL_GINFO = _IOWR('T', 0x03, struct snd_timer_ginfo),
|
|
SNDRV_TIMER_IOCTL_GPARAMS = _IOW('T', 0x04, struct snd_timer_gparams),
|
|
SNDRV_TIMER_IOCTL_GSTATUS = _IOWR('T', 0x05, struct snd_timer_gstatus),
|
|
SNDRV_TIMER_IOCTL_SELECT = _IOW('T', 0x10, struct snd_timer_select),
|
|
SNDRV_TIMER_IOCTL_INFO = _IOR('T', 0x11, struct snd_timer_info),
|
|
SNDRV_TIMER_IOCTL_PARAMS = _IOW('T', 0x12, struct snd_timer_params),
|
|
SNDRV_TIMER_IOCTL_STATUS = _IOR('T', 0x14, struct snd_timer_status),
|
|
/* The following four ioctls are changed since 1.0.9 due to confliction */
|
|
SNDRV_TIMER_IOCTL_START = _IO('T', 0xa0),
|
|
SNDRV_TIMER_IOCTL_STOP = _IO('T', 0xa1),
|
|
SNDRV_TIMER_IOCTL_CONTINUE = _IO('T', 0xa2),
|
|
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 ((__force snd_ctl_elem_type_t) 0) /* invalid */
|
|
#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */
|
|
#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */
|
|
#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3) /* enumerated type */
|
|
#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4) /* byte array */
|
|
#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
|
|
#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force 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 ((__force snd_ctl_elem_iface_t) 0) /* global control */
|
|
#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */
|
|
#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */
|
|
#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3) /* PCM device */
|
|
#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4) /* RawMidi device */
|
|
#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5) /* timer device */
|
|
#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force 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 */
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#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
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#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6) /* TLV command is possible */
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#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8) /* control does actually nothing, but may be updated */
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#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9) /* write lock */
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#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10) /* write lock owner */
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#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28) /* kernel use a TLV callback */
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#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29) /* user space element */
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/* bits 30 and 31 are obsoleted (for indirect access) */
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/* for further details see the ACPI and PCI power management specification */
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#define SNDRV_CTL_POWER_D0 0x0000 /* full On */
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#define SNDRV_CTL_POWER_D1 0x0100 /* partial On */
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#define SNDRV_CTL_POWER_D2 0x0200 /* partial On */
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#define SNDRV_CTL_POWER_D3 0x0300 /* Off */
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#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000) /* Off, with power */
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#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001) /* Off, without power */
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struct snd_ctl_elem_id {
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unsigned int numid; /* numeric identifier, zero = invalid */
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snd_ctl_elem_iface_t iface; /* interface identifier */
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unsigned int device; /* device/client number */
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unsigned int subdevice; /* subdevice (substream) number */
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unsigned char name[44]; /* ASCII name of item */
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unsigned int index; /* index of item */
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};
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struct snd_ctl_elem_list {
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unsigned int offset; /* W: first element ID to get */
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unsigned int space; /* W: count of element IDs to get */
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unsigned int used; /* R: count of element IDs set */
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unsigned int count; /* R: count of all elements */
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struct snd_ctl_elem_id __user *pids; /* R: IDs */
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unsigned char reserved[50];
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};
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|
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struct snd_ctl_elem_info {
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struct snd_ctl_elem_id id; /* W: element ID */
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snd_ctl_elem_type_t type; /* R: value type - SNDRV_CTL_ELEM_TYPE_* */
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unsigned int access; /* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
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unsigned int count; /* count of values */
|
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pid_t owner; /* owner's PID of this control */
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union {
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|
struct {
|
|
long min; /* R: minimum value */
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|
long max; /* R: maximum value */
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long step; /* R: step (0 variable) */
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|
} integer;
|
|
struct {
|
|
long long min; /* R: minimum value */
|
|
long long max; /* R: maximum value */
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|
long long step; /* R: step (0 variable) */
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} integer64;
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|
struct {
|
|
unsigned int items; /* R: number of items */
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|
unsigned int item; /* W: item number */
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|
char name[64]; /* R: value name */
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} enumerated;
|
|
unsigned char reserved[128];
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|
} value;
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|
union {
|
|
unsigned short d[4]; /* dimensions */
|
|
unsigned short *d_ptr; /* indirect - obsoleted */
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} dimen;
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|
unsigned char reserved[64-4*sizeof(unsigned short)];
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};
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|
|
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struct snd_ctl_elem_value {
|
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struct snd_ctl_elem_id id; /* W: element ID */
|
|
unsigned int indirect: 1; /* W: indirect access - obsoleted */
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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 */
|
|
};
|
|
|
|
enum {
|
|
SNDRV_CTL_IOCTL_PVERSION = _IOR('U', 0x00, int),
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SNDRV_CTL_IOCTL_CARD_INFO = _IOR('U', 0x01, struct snd_ctl_card_info),
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SNDRV_CTL_IOCTL_ELEM_LIST = _IOWR('U', 0x10, struct snd_ctl_elem_list),
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SNDRV_CTL_IOCTL_ELEM_INFO = _IOWR('U', 0x11, struct snd_ctl_elem_info),
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SNDRV_CTL_IOCTL_ELEM_READ = _IOWR('U', 0x12, struct snd_ctl_elem_value),
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SNDRV_CTL_IOCTL_ELEM_WRITE = _IOWR('U', 0x13, struct snd_ctl_elem_value),
|
|
SNDRV_CTL_IOCTL_ELEM_LOCK = _IOW('U', 0x14, struct snd_ctl_elem_id),
|
|
SNDRV_CTL_IOCTL_ELEM_UNLOCK = _IOW('U', 0x15, struct snd_ctl_elem_id),
|
|
SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS = _IOWR('U', 0x16, int),
|
|
SNDRV_CTL_IOCTL_ELEM_ADD = _IOWR('U', 0x17, struct snd_ctl_elem_info),
|
|
SNDRV_CTL_IOCTL_ELEM_REPLACE = _IOWR('U', 0x18, struct snd_ctl_elem_info),
|
|
SNDRV_CTL_IOCTL_ELEM_REMOVE = _IOWR('U', 0x19, struct snd_ctl_elem_id),
|
|
SNDRV_CTL_IOCTL_TLV_READ = _IOWR('U', 0x1a, struct snd_ctl_tlv),
|
|
SNDRV_CTL_IOCTL_TLV_WRITE = _IOWR('U', 0x1b, struct snd_ctl_tlv),
|
|
SNDRV_CTL_IOCTL_TLV_COMMAND = _IOWR('U', 0x1c, struct snd_ctl_tlv),
|
|
SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE = _IOWR('U', 0x20, int),
|
|
SNDRV_CTL_IOCTL_HWDEP_INFO = _IOR('U', 0x21, struct snd_hwdep_info),
|
|
SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE = _IOR('U', 0x30, int),
|
|
SNDRV_CTL_IOCTL_PCM_INFO = _IOWR('U', 0x31, struct snd_pcm_info),
|
|
SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE = _IOW('U', 0x32, int),
|
|
SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE = _IOWR('U', 0x40, int),
|
|
SNDRV_CTL_IOCTL_RAWMIDI_INFO = _IOWR('U', 0x41, struct snd_rawmidi_info),
|
|
SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE = _IOW('U', 0x42, int),
|
|
SNDRV_CTL_IOCTL_POWER = _IOWR('U', 0xd0, int),
|
|
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
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
struct snd_xferv {
|
|
const struct iovec *vector;
|
|
unsigned long count;
|
|
};
|
|
|
|
enum {
|
|
SNDRV_IOCTL_READV = _IOW('K', 0x00, struct snd_xferv),
|
|
SNDRV_IOCTL_WRITEV = _IOW('K', 0x01, struct snd_xferv),
|
|
};
|
|
|
|
#endif /* __SOUND_ASOUND_H */
|