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d6e6b9218c
It seems that many webcams have buggy firmware and don't expose the mic capture volume with the proper resolution. We have workarounds in mixer.c, but judging from the numbers, those can be better managed as global quirk flags. Link: https://patch.msgid.link/20241105120220.5740-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
227 lines
7.2 KiB
C
227 lines
7.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __USBAUDIO_H
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#define __USBAUDIO_H
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/*
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* (Tentative) USB Audio Driver for ALSA
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*
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* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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*/
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/* handling of USB vendor/product ID pairs as 32-bit numbers */
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#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product))
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#define USB_ID_VENDOR(id) ((id) >> 16)
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#define USB_ID_PRODUCT(id) ((u16)(id))
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/*
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*
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*/
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struct media_device;
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struct media_intf_devnode;
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#define MAX_CARD_INTERFACES 16
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/*
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* Structure holding assosiation between Audio Control Interface
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* and given Streaming or Midi Interface.
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*/
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struct snd_intf_to_ctrl {
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u8 interface;
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struct usb_host_interface *ctrl_intf;
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};
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struct snd_usb_audio {
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int index;
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struct usb_device *dev;
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struct snd_card *card;
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struct usb_interface *intf[MAX_CARD_INTERFACES];
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u32 usb_id;
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uint16_t quirk_type;
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struct mutex mutex;
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unsigned int system_suspend;
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atomic_t active;
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atomic_t shutdown;
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atomic_t usage_count;
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wait_queue_head_t shutdown_wait;
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unsigned int quirk_flags;
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unsigned int need_delayed_register:1; /* warn for delayed registration */
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int num_interfaces;
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int last_iface;
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int num_suspended_intf;
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int sample_rate_read_error;
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int badd_profile; /* UAC3 BADD profile */
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struct list_head pcm_list; /* list of pcm streams */
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struct list_head ep_list; /* list of audio-related endpoints */
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struct list_head iface_ref_list; /* list of interface refcounts */
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struct list_head clock_ref_list; /* list of clock refcounts */
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int pcm_devs;
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unsigned int num_rawmidis; /* number of created rawmidi devices */
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struct list_head midi_list; /* list of midi interfaces */
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struct list_head midi_v2_list; /* list of MIDI 2 interfaces */
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struct list_head mixer_list; /* list of mixer interfaces */
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int setup; /* from the 'device_setup' module param */
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bool generic_implicit_fb; /* from the 'implicit_fb' module param */
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bool autoclock; /* from the 'autoclock' module param */
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bool lowlatency; /* from the 'lowlatency' module param */
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struct usb_host_interface *ctrl_intf; /* the audio control interface */
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struct media_device *media_dev;
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struct media_intf_devnode *ctl_intf_media_devnode;
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unsigned int num_intf_to_ctrl;
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struct snd_intf_to_ctrl intf_to_ctrl[MAX_CARD_INTERFACES];
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};
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#define USB_AUDIO_IFACE_UNUSED ((void *)-1L)
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#define usb_audio_err(chip, fmt, args...) \
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dev_err(&(chip)->dev->dev, fmt, ##args)
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#define usb_audio_err_ratelimited(chip, fmt, args...) \
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dev_err_ratelimited(&(chip)->dev->dev, fmt, ##args)
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#define usb_audio_warn(chip, fmt, args...) \
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dev_warn(&(chip)->dev->dev, fmt, ##args)
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#define usb_audio_info(chip, fmt, args...) \
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dev_info(&(chip)->dev->dev, fmt, ##args)
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#define usb_audio_dbg(chip, fmt, args...) \
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dev_dbg(&(chip)->dev->dev, fmt, ##args)
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/*
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* Information about devices with broken descriptors
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*/
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/* special values for .ifnum */
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#define QUIRK_NODEV_INTERFACE -3 /* return -ENODEV */
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#define QUIRK_NO_INTERFACE -2
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#define QUIRK_ANY_INTERFACE -1
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enum quirk_type {
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QUIRK_IGNORE_INTERFACE,
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QUIRK_COMPOSITE,
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QUIRK_AUTODETECT,
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QUIRK_MIDI_STANDARD_INTERFACE,
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QUIRK_MIDI_FIXED_ENDPOINT,
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QUIRK_MIDI_YAMAHA,
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QUIRK_MIDI_ROLAND,
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QUIRK_MIDI_MIDIMAN,
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QUIRK_MIDI_NOVATION,
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QUIRK_MIDI_RAW_BYTES,
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QUIRK_MIDI_EMAGIC,
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QUIRK_MIDI_CME,
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QUIRK_MIDI_AKAI,
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QUIRK_MIDI_US122L,
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QUIRK_MIDI_FTDI,
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QUIRK_MIDI_CH345,
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QUIRK_AUDIO_STANDARD_INTERFACE,
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QUIRK_AUDIO_FIXED_ENDPOINT,
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QUIRK_AUDIO_EDIROL_UAXX,
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QUIRK_AUDIO_STANDARD_MIXER,
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QUIRK_TYPE_COUNT
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};
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struct snd_usb_audio_quirk {
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const char *vendor_name;
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const char *product_name;
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int16_t ifnum;
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uint16_t type;
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const void *data;
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};
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#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
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#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
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#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
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int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
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void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
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extern bool snd_usb_use_vmalloc;
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extern bool snd_usb_skip_validation;
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/*
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* Driver behavior quirk flags, stored in chip->quirk_flags
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*
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* QUIRK_FLAG_GET_SAMPLE_RATE:
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* Skip reading sample rate for devices, as some devices behave inconsistently
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* or return error
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* QUIRK_FLAG_SHARE_MEDIA_DEVICE:
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* Create Media Controller API entries
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* QUIRK_FLAG_ALIGN_TRANSFER:
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* Allow alignment on audio sub-slot (channel samples) rather than on audio
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* slots (audio frames)
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* QUIRK_TX_LENGTH:
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* Add length specifier to transfers
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* QUIRK_FLAG_PLAYBACK_FIRST:
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* Start playback stream at first even in implement feedback mode
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* QUIRK_FLAG_SKIP_CLOCK_SELECTOR:
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* Skip clock selector setup; the device may reset to invalid state
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* QUIRK_FLAG_IGNORE_CLOCK_SOURCE:
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* Ignore errors from clock source search; i.e. hardcoded clock
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* QUIRK_FLAG_ITF_USB_DSD_DAC:
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* Indicates the device is for ITF-USB DSD based DACs that need a vendor cmd
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* to switch between PCM and native DSD mode
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* QUIRK_FLAG_CTL_MSG_DELAY:
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* Add a delay of 20ms at each control message handling
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* QUIRK_FLAG_CTL_MSG_DELAY_1M:
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* Add a delay of 1-2ms at each control message handling
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* QUIRK_FLAG_CTL_MSG_DELAY_5M:
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* Add a delay of 5-6ms at each control message handling
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* QUIRK_FLAG_IFACE_DELAY:
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* Add a delay of 50ms at each interface setup
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* QUIRK_FLAG_VALIDATE_RATES:
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* Perform sample rate validations at probe
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* QUIRK_FLAG_DISABLE_AUTOSUSPEND:
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* Disable runtime PM autosuspend
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* QUIRK_FLAG_IGNORE_CTL_ERROR:
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* Ignore errors for mixer access
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* QUIRK_FLAG_DSD_RAW:
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* Support generic DSD raw U32_BE format
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* QUIRK_FLAG_SET_IFACE_FIRST:
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* Set up the interface at first like UAC1
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* QUIRK_FLAG_GENERIC_IMPLICIT_FB
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* Apply the generic implicit feedback sync mode (same as implicit_fb=1 option)
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* QUIRK_FLAG_SKIP_IMPLICIT_FB
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* Don't apply implicit feedback sync mode
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* QUIRK_FLAG_IFACE_SKIP_CLOSE
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* Don't closed interface during setting sample rate
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* QUIRK_FLAG_FORCE_IFACE_RESET
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* Force an interface reset whenever stopping & restarting a stream
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* (e.g. after xrun)
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* QUIRK_FLAG_FIXED_RATE
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* Do not set PCM rate (frequency) when only one rate is available
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* for the given endpoint.
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* QUIRK_FLAG_MIC_RES_16 and QUIRK_FLAG_MIC_RES_384
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* Set the fixed resolution for Mic Capture Volume (mostly for webcams)
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*/
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#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0)
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#define QUIRK_FLAG_SHARE_MEDIA_DEVICE (1U << 1)
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#define QUIRK_FLAG_ALIGN_TRANSFER (1U << 2)
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#define QUIRK_FLAG_TX_LENGTH (1U << 3)
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#define QUIRK_FLAG_PLAYBACK_FIRST (1U << 4)
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#define QUIRK_FLAG_SKIP_CLOCK_SELECTOR (1U << 5)
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#define QUIRK_FLAG_IGNORE_CLOCK_SOURCE (1U << 6)
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#define QUIRK_FLAG_ITF_USB_DSD_DAC (1U << 7)
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#define QUIRK_FLAG_CTL_MSG_DELAY (1U << 8)
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#define QUIRK_FLAG_CTL_MSG_DELAY_1M (1U << 9)
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#define QUIRK_FLAG_CTL_MSG_DELAY_5M (1U << 10)
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#define QUIRK_FLAG_IFACE_DELAY (1U << 11)
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#define QUIRK_FLAG_VALIDATE_RATES (1U << 12)
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#define QUIRK_FLAG_DISABLE_AUTOSUSPEND (1U << 13)
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#define QUIRK_FLAG_IGNORE_CTL_ERROR (1U << 14)
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#define QUIRK_FLAG_DSD_RAW (1U << 15)
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#define QUIRK_FLAG_SET_IFACE_FIRST (1U << 16)
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#define QUIRK_FLAG_GENERIC_IMPLICIT_FB (1U << 17)
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#define QUIRK_FLAG_SKIP_IMPLICIT_FB (1U << 18)
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#define QUIRK_FLAG_IFACE_SKIP_CLOSE (1U << 19)
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#define QUIRK_FLAG_FORCE_IFACE_RESET (1U << 20)
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#define QUIRK_FLAG_FIXED_RATE (1U << 21)
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#define QUIRK_FLAG_MIC_RES_16 (1U << 22)
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#define QUIRK_FLAG_MIC_RES_384 (1U << 23)
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#endif /* __USBAUDIO_H */
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