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};
10
11enum {
12	UAC3_PD_STATE_D0,
13	UAC3_PD_STATE_D1,
14	UAC3_PD_STATE_D2,
15};
16
17int snd_usb_power_domain_set(struct snd_usb_audio *chip,
18			     struct snd_usb_power_domain *pd,
19			     unsigned char state);
20struct snd_usb_power_domain *
21snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
22			  unsigned char id);
23
24#ifdef CONFIG_PM
25int snd_usb_autoresume(struct snd_usb_audio *chip);
26void snd_usb_autosuspend(struct snd_usb_audio *chip);
27#else
28static inline int snd_usb_autoresume(struct snd_usb_audio *chip)
29{
30	return 0;
31}
32static inline void snd_usb_autosuspend(struct snd_usb_audio *chip)
33{
34}
35#endif
36
37#endif /* __USBAUDIO_POWER_H */

 
 1#ifndef __USBAUDIO_POWER_H
 2#define __USBAUDIO_POWER_H
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 3
 4#ifdef CONFIG_PM
 5int snd_usb_autoresume(struct snd_usb_audio *chip);
 6void snd_usb_autosuspend(struct snd_usb_audio *chip);
 7#else
 8static inline int snd_usb_autoresume(struct snd_usb_audio *chip)
 9{
10	return 0;
11}
12static inline void snd_usb_autosuspend(struct snd_usb_audio *chip)
13{
14}
15#endif
16
17#endif /* __USBAUDIO_POWER_H */