1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __USBAUDIO_POWER_H
3 #define __USBAUDIO_POWER_H
4
5 struct 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
12 enum {
13 UAC3_PD_STATE_D0,
14 UAC3_PD_STATE_D1,
15 UAC3_PD_STATE_D2,
16 };
17
18 int snd_usb_power_domain_set(struct snd_usb_audio *chip,
19 struct snd_usb_power_domain *pd,
20 unsigned char state);
21 struct snd_usb_power_domain *
22 snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
23 unsigned char id);
24
25 int snd_usb_autoresume(struct snd_usb_audio *chip);
26 void snd_usb_autosuspend(struct snd_usb_audio *chip);
27
28 #endif /* __USBAUDIO_POWER_H */
29
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