mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
9a3df1f7de
This patch (as1058) improves the wakeup macros in include/linux/pm.h. All but the trivial ones are converted to inline routines, which requires moving them to a separate header file since they depend on the definition of struct device. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/*
|
|
* 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 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;
|
|
}
|
|
|
|
/*
|
|
* Platform hook to activate device wakeup capability, if that's not already
|
|
* handled by enable_irq_wake() etc.
|
|
* Returns zero on success, else negative errno
|
|
*/
|
|
extern int (*platform_enable_wakeup)(struct device *dev, int is_on);
|
|
|
|
static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
|
|
{
|
|
if (platform_enable_wakeup)
|
|
return (*platform_enable_wakeup)(dev, is_on);
|
|
return 0;
|
|
}
|
|
|
|
#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 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
|
|
|
|
static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* !CONFIG_PM */
|
|
|
|
#endif /* _LINUX_PM_WAKEUP_H */
|