diff options
Diffstat (limited to 'sound/usb/power.h')
| -rw-r--r-- | sound/usb/power.h | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/sound/usb/power.h b/sound/usb/power.h index 48ee51dcb71e..1fa92ad0ca92 100644 --- a/sound/usb/power.h +++ b/sound/usb/power.h @@ -1,17 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __USBAUDIO_POWER_H #define __USBAUDIO_POWER_H -#ifdef CONFIG_PM +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 */ + struct usb_host_interface *ctrl_iface; /* Control interface */ +}; + +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); + 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 */ |