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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __USBAUDIO_POWER_H
- #define __USBAUDIO_POWER_H
- struct snd_usb_power_domain {
- int pd_id; /* UAC3 Power Domain ID */
- int pd_d1d0_rec; /* D1 to D0 recovery time */
- int pd_d2d0_rec; /* D2 to D0 recovery time */
- };
- enum {
- UAC3_PD_STATE_D0,
- UAC3_PD_STATE_D1,
- UAC3_PD_STATE_D2,
- };
- int snd_usb_power_domain_set(struct snd_usb_audio *chip,
- struct snd_usb_power_domain *pd,
- unsigned char state);
- struct snd_usb_power_domain *
- snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
- unsigned char id);
- #ifdef CONFIG_PM
- int snd_usb_autoresume(struct snd_usb_audio *chip);
- void snd_usb_autosuspend(struct snd_usb_audio *chip);
- #else
- static inline int snd_usb_autoresume(struct snd_usb_audio *chip)
- {
- return 0;
- }
- static inline void snd_usb_autosuspend(struct snd_usb_audio *chip)
- {
- }
- #endif
- #endif /* __USBAUDIO_POWER_H */
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