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