power.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __USBAUDIO_POWER_H
 3#define __USBAUDIO_POWER_H
 4
 5struct snd_usb_power_domain {
 6	int pd_id;              /* UAC3 Power Domain ID */
 7	int pd_d1d0_rec;        /* D1 to D0 recovery time */
 8	int pd_d2d0_rec;        /* D2 to D0 recovery time */
 9	struct usb_host_interface *ctrl_iface; /* Control interface */
10};
11
12enum {
13	UAC3_PD_STATE_D0,
14	UAC3_PD_STATE_D1,
15	UAC3_PD_STATE_D2,
16};
17
18int snd_usb_power_domain_set(struct snd_usb_audio *chip,
19			     struct snd_usb_power_domain *pd,
20			     unsigned char state);
21struct snd_usb_power_domain *
22snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
23			  unsigned char id);
24
25int snd_usb_autoresume(struct snd_usb_audio *chip);
26void snd_usb_autosuspend(struct snd_usb_audio *chip);
27
28#endif /* __USBAUDIO_POWER_H */