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/*
* pm.h - Power management interface
*
* Copyright (C) 2000 Andrew Henroid
*
* 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_H
#define _LINUX_PM_H
#include <linux/list.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/timer.h>
#include <linux/completion.h>
extern void (*pm_idle)(void);
extern void (*pm_power_off)(void);
extern void (*pm_power_off_prepare)(void);
struct device;
#ifdef CONFIG_PM
extern const char power_group_name[];
#else
#define power_group_name NULL
#endif
typedef struct pm_message {
int event;
} pm_message_t;
struct dev_pm_ops {
int (*prepare)(struct device *dev);
void (*complete)(struct device *dev);
int (*suspend)(struct device *dev);
int (*resume)(struct device *dev);
int (*freeze)(struct device *dev);
int (*thaw)(struct device *dev);
int (*poweroff)(struct device *dev);
int (*restore)(struct device *dev);
int (*suspend_late)(struct device *dev);
int (*resume_early)(struct device *dev);
int (*freeze_late)(struct device *dev);
int (*thaw_early)(struct device *dev);
int (*poweroff_late)(struct device *dev);
int (*restore_early)(struct device *dev);
int (*suspend_noirq)(struct device *dev);
int (*resume_noirq)(struct device *dev);
int (*freeze_noirq)(struct device *dev);
int (*thaw_noirq)(struct device *dev);
int (*poweroff_noirq)(struct device *dev);
int (*restore_noirq)(struct device *dev);
int (*runtime_suspend)(struct device *dev);
int (*runtime_resume)(struct device *dev);
int (*runtime_idle)(struct device *dev);
};
#ifdef CONFIG_PM_SLEEP
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
.suspend = suspend_fn, \
.resume = resume_fn, \
.freeze = suspend_fn, \
.thaw = resume_fn, \
.poweroff = suspend_fn, \
.restore = resume_fn,
#else
#define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
#endif
#ifdef CONFIG_PM_RUNTIME
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
.runtime_suspend = suspend_fn, \
.runtime_resume = resume_fn, \
.runtime_idle = idle_fn,
#else
#define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn)
#endif
#define SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
const struct dev_pm_ops name = { \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
}
#define UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
const struct dev_pm_ops name = { \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
}
#define PM_EVENT_INVALID (-1)
#define PM_EVENT_ON 0x0000
#define PM_EVENT_FREEZE 0x0001
#define PM_EVENT_SUSPEND 0x0002
#define PM_EVENT_HIBERNATE 0x0004
#define PM_EVENT_QUIESCE 0x0008
#define PM_EVENT_RESUME 0x0010
#define PM_EVENT_THAW 0x0020
#define PM_EVENT_RESTORE 0x0040
#define PM_EVENT_RECOVER 0x0080
#define PM_EVENT_USER 0x0100
#define PM_EVENT_REMOTE 0x0200
#define PM_EVENT_AUTO 0x0400
#define PM_EVENT_SLEEP (PM_EVENT_SUSPEND | PM_EVENT_HIBERNATE)
#define PM_EVENT_USER_SUSPEND (PM_EVENT_USER | PM_EVENT_SUSPEND)
#define PM_EVENT_USER_RESUME (PM_EVENT_USER | PM_EVENT_RESUME)
#define PM_EVENT_REMOTE_RESUME (PM_EVENT_REMOTE | PM_EVENT_RESUME)
#define PM_EVENT_AUTO_SUSPEND (PM_EVENT_AUTO | PM_EVENT_SUSPEND)
#define PM_EVENT_AUTO_RESUME (PM_EVENT_AUTO | PM_EVENT_RESUME)
#define PMSG_INVALID ((struct pm_message){ .event = PM_EVENT_INVALID, })
#define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, })
#define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, })
#define PMSG_QUIESCE ((struct pm_message){ .event = PM_EVENT_QUIESCE, })
#define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, })
#define PMSG_HIBERNATE ((struct pm_message){ .event = PM_EVENT_HIBERNATE, })
#define PMSG_RESUME ((struct pm_message){ .event = PM_EVENT_RESUME, })
#define PMSG_THAW ((struct pm_message){ .event = PM_EVENT_THAW, })
#define PMSG_RESTORE ((struct pm_message){ .event = PM_EVENT_RESTORE, })
#define PMSG_RECOVER ((struct pm_message){ .event = PM_EVENT_RECOVER, })
#define PMSG_USER_SUSPEND ((struct pm_message) \
{ .event = PM_EVENT_USER_SUSPEND, })
#define PMSG_USER_RESUME ((struct pm_message) \
{ .event = PM_EVENT_USER_RESUME, })
#define PMSG_REMOTE_RESUME ((struct pm_message) \
{ .event = PM_EVENT_REMOTE_RESUME, })
#define PMSG_AUTO_SUSPEND ((struct pm_message) \
{ .event = PM_EVENT_AUTO_SUSPEND, })
#define PMSG_AUTO_RESUME ((struct pm_message) \
{ .event = PM_EVENT_AUTO_RESUME, })
#define PMSG_IS_AUTO(msg) (((msg).event & PM_EVENT_AUTO) != 0)
enum rpm_status {
RPM_ACTIVE = 0,
RPM_RESUMING,
RPM_SUSPENDED,
RPM_SUSPENDING,
};
enum rpm_request {
RPM_REQ_NONE = 0,
RPM_REQ_IDLE,
RPM_REQ_SUSPEND,
RPM_REQ_AUTOSUSPEND,
RPM_REQ_RESUME,
};
struct wakeup_source;
struct pm_domain_data {
struct list_head list_node;
struct device *dev;
};
struct pm_subsys_data {
spinlock_t lock;
unsigned int refcount;
#ifdef CONFIG_PM_CLK
struct list_head clock_list;
#endif
#ifdef CONFIG_PM_GENERIC_DOMAINS
struct pm_domain_data *domain_data;
#endif
};
struct dev_pm_info {
pm_message_t power_state;
unsigned int can_wakeup:1;
unsigned int async_suspend:1;
bool is_prepared:1;
bool is_suspended:1;
bool ignore_children:1;
spinlock_t lock;
#ifdef CONFIG_PM_SLEEP
struct list_head entry;
struct completion completion;
struct wakeup_source *wakeup;
bool wakeup_path:1;
#else
unsigned int should_wakeup:1;
#endif
#ifdef CONFIG_PM_RUNTIME
struct timer_list suspend_timer;
unsigned long timer_expires;
struct work_struct work;
wait_queue_head_t wait_queue;
atomic_t usage_count;
atomic_t child_count;
unsigned int disable_depth:3;
unsigned int idle_notification:1;
unsigned int request_pending:1;
unsigned int deferred_resume:1;
unsigned int run_wake:1;
unsigned int runtime_auto:1;
unsigned int no_callbacks:1;
unsigned int irq_safe:1;
unsigned int use_autosuspend:1;
unsigned int timer_autosuspends:1;
enum rpm_request request;
enum rpm_status runtime_status;
int runtime_error;
int autosuspend_delay;
unsigned long last_busy;
unsigned long active_jiffies;
unsigned long suspended_jiffies;
unsigned long accounting_timestamp;
ktime_t suspend_time;
s64 max_time_suspended_ns;
struct dev_pm_qos_request *pq_req;
#if defined(CONFIG_USB_EHCI_MSM_HSIC)
unsigned int htc_hsic_dbg_enable:1;
#endif
#endif
struct pm_subsys_data *subsys_data;
struct pm_qos_constraints *constraints;
};
extern void update_pm_runtime_accounting(struct device *dev);
extern int dev_pm_get_subsys_data(struct device *dev);
extern int dev_pm_put_subsys_data(struct device *dev);
struct dev_pm_domain {
struct dev_pm_ops ops;
};
#define PM_EVENT_PRETHAW PM_EVENT_QUIESCE
#ifdef CONFIG_PM_SLEEP
extern void device_pm_lock(void);
extern void dpm_resume_start(pm_message_t state);
extern void dpm_resume_end(pm_message_t state);
extern void dpm_resume(pm_message_t state);
extern void dpm_complete(pm_message_t state);
extern void device_pm_unlock(void);
extern int dpm_suspend_end(pm_message_t state);
extern int dpm_suspend_start(pm_message_t state);
extern int dpm_suspend(pm_message_t state);
extern int dpm_prepare(pm_message_t state);
extern void __suspend_report_result(const char *function, void *fn, int ret);
#define suspend_report_result(fn, ret) \
do { \
__suspend_report_result(__func__, fn, ret); \
} while (0)
extern int device_pm_wait_for_dev(struct device *sub, struct device *dev);
extern int pm_generic_prepare(struct device *dev);
extern int pm_generic_suspend_late(struct device *dev);
extern int pm_generic_suspend_noirq(struct device *dev);
extern int pm_generic_suspend(struct device *dev);
extern int pm_generic_resume_early(struct device *dev);
extern int pm_generic_resume_noirq(struct device *dev);
extern int pm_generic_resume(struct device *dev);
extern int pm_generic_freeze_noirq(struct device *dev);
extern int pm_generic_freeze_late(struct device *dev);
extern int pm_generic_freeze(struct device *dev);
extern int pm_generic_thaw_noirq(struct device *dev);
extern int pm_generic_thaw_early(struct device *dev);
extern int pm_generic_thaw(struct device *dev);
extern int pm_generic_restore_noirq(struct device *dev);
extern int pm_generic_restore_early(struct device *dev);
extern int pm_generic_restore(struct device *dev);
extern int pm_generic_poweroff_noirq(struct device *dev);
extern int pm_generic_poweroff_late(struct device *dev);
extern int pm_generic_poweroff(struct device *dev);
extern void pm_generic_complete(struct device *dev);
#else
#define device_pm_lock() do {} while (0)
#define device_pm_unlock() do {} while (0)
static inline int dpm_suspend_start(pm_message_t state)
{
return 0;
}
#define suspend_report_result(fn, ret) do {} while (0)
static inline int device_pm_wait_for_dev(struct device *a, struct device *b)
{
return 0;
}
#define pm_generic_prepare NULL
#define pm_generic_suspend NULL
#define pm_generic_resume NULL
#define pm_generic_freeze NULL
#define pm_generic_thaw NULL
#define pm_generic_restore NULL
#define pm_generic_poweroff NULL
#define pm_generic_complete NULL
#endif
enum dpm_order {
DPM_ORDER_NONE,
DPM_ORDER_DEV_AFTER_PARENT,
DPM_ORDER_PARENT_BEFORE_DEV,
DPM_ORDER_DEV_LAST,
};
#endif
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