/*
   *  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

  #include <linux/types.h>

  #ifdef CONFIG_PM

  /* Changes to device_may_wakeup take effect on the next pm state change.
   *
   * By default, most devices should leave wakeup disabled.  The exceptions
   * are devices that everyone expects to be wakeup sources: keyboards,
   * power buttons, possibly network interfaces, etc.

   */

  static inline void device_init_wakeup(struct device *dev, bool val)

  {

  	dev->power.can_wakeup = dev->power.should_wakeup = val;

  }

  static inline void device_set_wakeup_capable(struct device *dev, bool capable)

  {

  	dev->power.can_wakeup = capable;

  }

  static inline bool device_can_wakeup(struct device *dev)

  {
  	return dev->power.can_wakeup;
  }

  static inline void device_set_wakeup_enable(struct device *dev, bool enable)

  {

  	dev->power.should_wakeup = enable;

  }

  static inline bool device_may_wakeup(struct device *dev)

  {

  	return dev->power.can_wakeup && dev->power.should_wakeup;

  }
  
  #else /* !CONFIG_PM */

  /* For some reason the following routines work even without CONFIG_PM */

  static inline void device_init_wakeup(struct device *dev, bool val)

  {

  	dev->power.can_wakeup = val;

  }

  static inline void device_set_wakeup_capable(struct device *dev, bool capable)
  {

  	dev->power.can_wakeup = capable;

  }

  static inline bool device_can_wakeup(struct device *dev)

  {
  	return dev->power.can_wakeup;
  }

  static inline void device_set_wakeup_enable(struct device *dev, bool enable)
  {
  }
  
  static inline bool device_may_wakeup(struct device *dev)
  {
  	return false;
  }

  #endif /* !CONFIG_PM */
  
  #endif /* _LINUX_PM_WAKEUP_H */