power.h 807 B

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