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130 lines
3.5 KiB
130 lines
3.5 KiB
/* 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 <[email protected]> |
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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) (((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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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 txfr_quirk:1; /* Subframe boundaries on transfers */ |
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unsigned int tx_length_quirk:1; /* Put length specifier in transfers */ |
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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 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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int pcm_devs; |
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struct list_head midi_list; /* list of midi 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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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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}; |
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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_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_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_ALIGN_TRANSFER, |
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QUIRK_AUDIO_STANDARD_MIXER, |
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QUIRK_SETUP_FMT_AFTER_RESUME, |
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QUIRK_SETUP_DISABLE_AUTOSUSPEND, |
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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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bool shares_media_device; |
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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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#endif /* __USBAUDIO_H */
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