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22#ifndef _LINUX_PM_WAKEUP_H
23#define _LINUX_PM_WAKEUP_H
24
25#ifndef _DEVICE_H_
26# error "please don't include this file directly"
27#endif
28
29#include <linux/types.h>
30
31struct wake_irq;
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54struct wakeup_source {
55 const char *name;
56 struct list_head entry;
57 spinlock_t lock;
58 struct wake_irq *wakeirq;
59 struct timer_list timer;
60 unsigned long timer_expires;
61 ktime_t total_time;
62 ktime_t max_time;
63 ktime_t last_time;
64 ktime_t start_prevent_time;
65 ktime_t prevent_sleep_time;
66 unsigned long event_count;
67 unsigned long active_count;
68 unsigned long relax_count;
69 unsigned long expire_count;
70 unsigned long wakeup_count;
71 bool active:1;
72 bool autosleep_enabled:1;
73};
74
75#ifdef CONFIG_PM_SLEEP
76
77
78
79
80
81static inline bool device_can_wakeup(struct device *dev)
82{
83 return dev->power.can_wakeup;
84}
85
86static inline bool device_may_wakeup(struct device *dev)
87{
88 return dev->power.can_wakeup && !!dev->power.wakeup;
89}
90
91static inline void device_set_wakeup_path(struct device *dev)
92{
93 dev->power.wakeup_path = true;
94}
95
96
97extern void wakeup_source_prepare(struct wakeup_source *ws, const char *name);
98extern struct wakeup_source *wakeup_source_create(const char *name);
99extern void wakeup_source_drop(struct wakeup_source *ws);
100extern void wakeup_source_destroy(struct wakeup_source *ws);
101extern void wakeup_source_add(struct wakeup_source *ws);
102extern void wakeup_source_remove(struct wakeup_source *ws);
103extern struct wakeup_source *wakeup_source_register(const char *name);
104extern void wakeup_source_unregister(struct wakeup_source *ws);
105extern int device_wakeup_enable(struct device *dev);
106extern int device_wakeup_disable(struct device *dev);
107extern void device_set_wakeup_capable(struct device *dev, bool capable);
108extern int device_init_wakeup(struct device *dev, bool val);
109extern int device_set_wakeup_enable(struct device *dev, bool enable);
110extern void __pm_stay_awake(struct wakeup_source *ws);
111extern void pm_stay_awake(struct device *dev);
112extern void __pm_relax(struct wakeup_source *ws);
113extern void pm_relax(struct device *dev);
114extern void pm_wakeup_ws_event(struct wakeup_source *ws, unsigned int msec, bool hard);
115extern void pm_wakeup_dev_event(struct device *dev, unsigned int msec, bool hard);
116
117#else
118
119static inline void device_set_wakeup_capable(struct device *dev, bool capable)
120{
121 dev->power.can_wakeup = capable;
122}
123
124static inline bool device_can_wakeup(struct device *dev)
125{
126 return dev->power.can_wakeup;
127}
128
129static inline void wakeup_source_prepare(struct wakeup_source *ws,
130 const char *name) {}
131
132static inline struct wakeup_source *wakeup_source_create(const char *name)
133{
134 return NULL;
135}
136
137static inline void wakeup_source_drop(struct wakeup_source *ws) {}
138
139static inline void wakeup_source_destroy(struct wakeup_source *ws) {}
140
141static inline void wakeup_source_add(struct wakeup_source *ws) {}
142
143static inline void wakeup_source_remove(struct wakeup_source *ws) {}
144
145static inline struct wakeup_source *wakeup_source_register(const char *name)
146{
147 return NULL;
148}
149
150static inline void wakeup_source_unregister(struct wakeup_source *ws) {}
151
152static inline int device_wakeup_enable(struct device *dev)
153{
154 dev->power.should_wakeup = true;
155 return 0;
156}
157
158static inline int device_wakeup_disable(struct device *dev)
159{
160 dev->power.should_wakeup = false;
161 return 0;
162}
163
164static inline int device_set_wakeup_enable(struct device *dev, bool enable)
165{
166 dev->power.should_wakeup = enable;
167 return 0;
168}
169
170static inline int device_init_wakeup(struct device *dev, bool val)
171{
172 device_set_wakeup_capable(dev, val);
173 device_set_wakeup_enable(dev, val);
174 return 0;
175}
176
177static inline bool device_may_wakeup(struct device *dev)
178{
179 return dev->power.can_wakeup && dev->power.should_wakeup;
180}
181
182static inline void device_set_wakeup_path(struct device *dev) {}
183
184static inline void __pm_stay_awake(struct wakeup_source *ws) {}
185
186static inline void pm_stay_awake(struct device *dev) {}
187
188static inline void __pm_relax(struct wakeup_source *ws) {}
189
190static inline void pm_relax(struct device *dev) {}
191
192static inline void pm_wakeup_ws_event(struct wakeup_source *ws,
193 unsigned int msec, bool hard) {}
194
195static inline void pm_wakeup_dev_event(struct device *dev, unsigned int msec,
196 bool hard) {}
197
198#endif
199
200static inline void wakeup_source_init(struct wakeup_source *ws,
201 const char *name)
202{
203 wakeup_source_prepare(ws, name);
204 wakeup_source_add(ws);
205}
206
207static inline void wakeup_source_trash(struct wakeup_source *ws)
208{
209 wakeup_source_remove(ws);
210 wakeup_source_drop(ws);
211}
212
213static inline void __pm_wakeup_event(struct wakeup_source *ws, unsigned int msec)
214{
215 return pm_wakeup_ws_event(ws, msec, false);
216}
217
218static inline void pm_wakeup_event(struct device *dev, unsigned int msec)
219{
220 return pm_wakeup_dev_event(dev, msec, false);
221}
222
223static inline void pm_wakeup_hard_event(struct device *dev)
224{
225 return pm_wakeup_dev_event(dev, 0, true);
226}
227
228#endif
229