/*
* pm_wakeup.h - Power management wakeup interface
*
* Copyright (C) 2008 Alan Stern
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LINUX_PM_WAKEUP_H
#define _LINUX_PM_WAKEUP_H
#ifndef _DEVICE_H_
# error "please don't include this file directly"
#endif
#ifdef CONFIG_PM
/* changes to device_may_wakeup take effect on the next pm state change.
* by default, devices should wakeup if they can.
*/
static inline void device_init_wakeup(struct device *dev, int val)
{
dev->power.can_wakeup = dev->power.should_wakeup = !!val;
}
static inline void device_set_wakeup_capable(struct device *dev, int val)
{
dev->power.can_wakeup = !!val;
}
static inline int device_can_wakeup(struct device *dev)
{
return dev->power.can_wakeup;
}
static inline void device_set_wakeup_enable(struct device *dev, int val)
{
dev->power.should_wakeup = !!val;
}
static inline int device_may_wakeup(struct device *dev)
{
return dev->power.can_wakeup && dev->power.should_wakeup;
}
#else /* !CONFIG_PM */
/* For some reason the next two routines work even without CONFIG_PM */
static inline void device_init_wakeup(struct device *dev, int val)
{
dev->power.can_wakeup = !!val;
}
static inline void device_set_wakeup_capable(struct device *dev, int val) { }
static inline int device_can_wakeup(struct device *dev)
{
return dev->power.can_wakeup;
}
#define device_set_wakeup_enable(dev, val) do {} while (0)
#define device_may_wakeup(dev) 0
#endif /* !CONFIG_PM */
#endif /* _LINUX_PM_WAKEUP_H */
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