Merge tag 'ieee802154-for-davem-2021-04-07' of git://git.kernel.org/pub/scm/linux...
[linux-2.6-microblaze.git] / sound / usb / power.h
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 };
10
11 enum {
12         UAC3_PD_STATE_D0,
13         UAC3_PD_STATE_D1,
14         UAC3_PD_STATE_D2,
15 };
16
17 int snd_usb_power_domain_set(struct snd_usb_audio *chip,
18                              struct snd_usb_power_domain *pd,
19                              unsigned char state);
20 struct snd_usb_power_domain *
21 snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
22                           unsigned char id);
23
24 #ifdef CONFIG_PM
25 int snd_usb_autoresume(struct snd_usb_audio *chip);
26 void snd_usb_autosuspend(struct snd_usb_audio *chip);
27 #else
28 static inline int snd_usb_autoresume(struct snd_usb_audio *chip)
29 {
30         return 0;
31 }
32 static inline void snd_usb_autosuspend(struct snd_usb_audio *chip)
33 {
34 }
35 #endif
36
37 #endif /* __USBAUDIO_POWER_H */