/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __USBAUDIO_H #define __USBAUDIO_H /* * (Tentative) USB Audio Driver for ALSA * * Copyright (c) 2002 by Takashi Iwai <[email protected]> */ /* handling of USB vendor/product ID pairs as 32-bit numbers */ #define USB_ID(vendor, product) … #define USB_ID_VENDOR(id) … #define USB_ID_PRODUCT(id) … /* * */ struct media_device; struct media_intf_devnode; #define MAX_CARD_INTERFACES … struct snd_usb_audio { … }; #define USB_AUDIO_IFACE_UNUSED … #define usb_audio_err(chip, fmt, args...) … #define usb_audio_err_ratelimited(chip, fmt, args...) … #define usb_audio_warn(chip, fmt, args...) … #define usb_audio_info(chip, fmt, args...) … #define usb_audio_dbg(chip, fmt, args...) … /* * Information about devices with broken descriptors */ /* special values for .ifnum */ #define QUIRK_NODEV_INTERFACE … #define QUIRK_NO_INTERFACE … #define QUIRK_ANY_INTERFACE … enum quirk_type { … }; struct snd_usb_audio_quirk { … }; #define combine_word(s) … #define combine_triple(s) … #define combine_quad(s) … int snd_usb_lock_shutdown(struct snd_usb_audio *chip); void snd_usb_unlock_shutdown(struct snd_usb_audio *chip); extern bool snd_usb_use_vmalloc; extern bool snd_usb_skip_validation; /* * Driver behavior quirk flags, stored in chip->quirk_flags * * QUIRK_FLAG_GET_SAMPLE_RATE: * Skip reading sample rate for devices, as some devices behave inconsistently * or return error * QUIRK_FLAG_SHARE_MEDIA_DEVICE: * Create Media Controller API entries * QUIRK_FLAG_ALIGN_TRANSFER: * Allow alignment on audio sub-slot (channel samples) rather than on audio * slots (audio frames) * QUIRK_TX_LENGTH: * Add length specifier to transfers * QUIRK_FLAG_PLAYBACK_FIRST: * Start playback stream at first even in implement feedback mode * QUIRK_FLAG_SKIP_CLOCK_SELECTOR: * Skip clock selector setup; the device may reset to invalid state * QUIRK_FLAG_IGNORE_CLOCK_SOURCE: * Ignore errors from clock source search; i.e. hardcoded clock * QUIRK_FLAG_ITF_USB_DSD_DAC: * Indicates the device is for ITF-USB DSD based DACs that need a vendor cmd * to switch between PCM and native DSD mode * QUIRK_FLAG_CTL_MSG_DELAY: * Add a delay of 20ms at each control message handling * QUIRK_FLAG_CTL_MSG_DELAY_1M: * Add a delay of 1-2ms at each control message handling * QUIRK_FLAG_CTL_MSG_DELAY_5M: * Add a delay of 5-6ms at each control message handling * QUIRK_FLAG_IFACE_DELAY: * Add a delay of 50ms at each interface setup * QUIRK_FLAG_VALIDATE_RATES: * Perform sample rate validations at probe * QUIRK_FLAG_DISABLE_AUTOSUSPEND: * Disable runtime PM autosuspend * QUIRK_FLAG_IGNORE_CTL_ERROR: * Ignore errors for mixer access * QUIRK_FLAG_DSD_RAW: * Support generic DSD raw U32_BE format * QUIRK_FLAG_SET_IFACE_FIRST: * Set up the interface at first like UAC1 * QUIRK_FLAG_GENERIC_IMPLICIT_FB * Apply the generic implicit feedback sync mode (same as implicit_fb=1 option) * QUIRK_FLAG_SKIP_IMPLICIT_FB * Don't apply implicit feedback sync mode * QUIRK_FLAG_IFACE_SKIP_CLOSE * Don't closed interface during setting sample rate * QUIRK_FLAG_FORCE_IFACE_RESET * Force an interface reset whenever stopping & restarting a stream * (e.g. after xrun) * QUIRK_FLAG_FIXED_RATE * Do not set PCM rate (frequency) when only one rate is available * for the given endpoint. */ #define QUIRK_FLAG_GET_SAMPLE_RATE … #define QUIRK_FLAG_SHARE_MEDIA_DEVICE … #define QUIRK_FLAG_ALIGN_TRANSFER … #define QUIRK_FLAG_TX_LENGTH … #define QUIRK_FLAG_PLAYBACK_FIRST … #define QUIRK_FLAG_SKIP_CLOCK_SELECTOR … #define QUIRK_FLAG_IGNORE_CLOCK_SOURCE … #define QUIRK_FLAG_ITF_USB_DSD_DAC … #define QUIRK_FLAG_CTL_MSG_DELAY … #define QUIRK_FLAG_CTL_MSG_DELAY_1M … #define QUIRK_FLAG_CTL_MSG_DELAY_5M … #define QUIRK_FLAG_IFACE_DELAY … #define QUIRK_FLAG_VALIDATE_RATES … #define QUIRK_FLAG_DISABLE_AUTOSUSPEND … #define QUIRK_FLAG_IGNORE_CTL_ERROR … #define QUIRK_FLAG_DSD_RAW … #define QUIRK_FLAG_SET_IFACE_FIRST … #define QUIRK_FLAG_GENERIC_IMPLICIT_FB … #define QUIRK_FLAG_SKIP_IMPLICIT_FB … #define QUIRK_FLAG_IFACE_SKIP_CLOSE … #define QUIRK_FLAG_FORCE_IFACE_RESET … #define QUIRK_FLAG_FIXED_RATE … #endif /* __USBAUDIO_H */
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