98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
|
/*
|
||
|
|
* governor.h - internal header for devfreq governors.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2011 Samsung Electronics
|
||
|
|
* MyungJoo Ham <myungjoo.ham@samsung.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This header is for devfreq governors in drivers/devfreq/
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _GOVERNOR_H
|
||
|
|
#define _GOVERNOR_H
|
||
|
|
|
||
|
|
#include <linux/devfreq.h>
|
||
|
|
|
||
|
|
#define to_devfreq(DEV) container_of((DEV), struct devfreq, dev)
|
||
|
|
|
||
|
|
/* Devfreq events */
|
||
|
|
#define DEVFREQ_GOV_START 0x1
|
||
|
|
#define DEVFREQ_GOV_STOP 0x2
|
||
|
|
#define DEVFREQ_GOV_INTERVAL 0x3
|
||
|
|
#define DEVFREQ_GOV_SUSPEND 0x4
|
||
|
|
#define DEVFREQ_GOV_RESUME 0x5
|
||
|
|
#define DEVFREQ_GOV_WMARK 0x6
|
||
|
|
|
||
|
|
#if defined(CONFIG_PM_DEVFREQ)
|
||
|
|
|
||
|
|
/* Caution: devfreq->lock must be locked before calling update_devfreq */
|
||
|
|
extern int update_devfreq(struct devfreq *devfreq);
|
||
|
|
|
||
|
|
#else /* !CONFIG_PM_DEVFREQ */
|
||
|
|
|
||
|
|
static inline int update_devfreq(struct devfreq *devfreq)
|
||
|
|
{
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* !CONFIG_PM_DEVFREQ */
|
||
|
|
|
||
|
|
#if defined(CONFIG_PM_DEVFREQ)
|
||
|
|
|
||
|
|
extern void devfreq_monitor_start(struct devfreq *devfreq);
|
||
|
|
extern void devfreq_monitor_stop(struct devfreq *devfreq);
|
||
|
|
extern void devfreq_monitor_suspend(struct devfreq *devfreq);
|
||
|
|
extern void devfreq_monitor_resume(struct devfreq *devfreq);
|
||
|
|
extern void devfreq_interval_update(struct devfreq *devfreq,
|
||
|
|
unsigned int *delay);
|
||
|
|
|
||
|
|
extern int devfreq_add_governor(struct devfreq_governor *governor);
|
||
|
|
extern int devfreq_remove_governor(struct devfreq_governor *governor);
|
||
|
|
|
||
|
|
extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
|
||
|
|
|
||
|
|
#else /* !CONFIG_PM_DEVFREQ */
|
||
|
|
|
||
|
|
static inline void devfreq_monitor_start(struct devfreq *devfreq)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void devfreq_monitor_stop(struct devfreq *devfreq)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void devfreq_monitor_suspend(struct devfreq *devfreq)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void devfreq_monitor_resume(struct devfreq *devfreq)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void devfreq_interval_update(struct devfreq *devfreq,
|
||
|
|
unsigned int *delay)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int devfreq_add_governor(struct devfreq_governor *governor)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int devfreq_remove_governor(struct devfreq_governor *governor)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int devfreq_update_status(struct devfreq *devfreq,
|
||
|
|
unsigned long freq)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_PM_DEVFREQ */
|
||
|
|
|
||
|
|
#endif /* _GOVERNOR_H */
|