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86a9bb5bf9
Practically seen, CONFIG_PM is almost mandatory. Let's drop the ugly ifdef lines and simplify the code. Link: https://lore.kernel.org/r/20211202084053.18201-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
28 lines
743 B
C
28 lines
743 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __USBAUDIO_POWER_H
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#define __USBAUDIO_POWER_H
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struct snd_usb_power_domain {
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int pd_id; /* UAC3 Power Domain ID */
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int pd_d1d0_rec; /* D1 to D0 recovery time */
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int pd_d2d0_rec; /* D2 to D0 recovery time */
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};
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enum {
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UAC3_PD_STATE_D0,
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UAC3_PD_STATE_D1,
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UAC3_PD_STATE_D2,
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};
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int snd_usb_power_domain_set(struct snd_usb_audio *chip,
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struct snd_usb_power_domain *pd,
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unsigned char state);
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struct snd_usb_power_domain *
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snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
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unsigned char id);
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int snd_usb_autoresume(struct snd_usb_audio *chip);
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void snd_usb_autosuspend(struct snd_usb_audio *chip);
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#endif /* __USBAUDIO_POWER_H */
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