struct pm_ops {
suspend_disk_method_t pm_disk_mode;
+ int (*valid)(suspend_state_t state);
int (*prepare)(suspend_state_t state);
int (*enter)(suspend_state_t state);
int (*finish)(suspend_state_t state);
struct dev_pm_info {
pm_message_t power_state;
+ unsigned can_wakeup:1;
#ifdef CONFIG_PM
+ unsigned should_wakeup:1;
pm_message_t prev_state;
void * saved_state;
- atomic_t pm_users;
struct device * pm_parent;
struct list_head entry;
#endif
#ifdef CONFIG_PM
extern int device_suspend(pm_message_t state);
-#else
+
+#define device_set_wakeup_enable(dev,val) \
+ ((dev)->power.should_wakeup = !!(val))
+#define device_may_wakeup(dev) \
+ (device_can_wakeup(dev) && (dev)->power.should_wakeup)
+
+extern int dpm_runtime_suspend(struct device *, pm_message_t);
+extern void dpm_runtime_resume(struct device *);
+
+#else /* !CONFIG_PM */
+
static inline int device_suspend(pm_message_t state)
{
return 0;
}
+
+#define device_set_wakeup_enable(dev,val) do{}while(0)
+#define device_may_wakeup(dev) (0)
+
+static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state)
+{
+ return 0;
+}
+
+static inline void dpm_runtime_resume(struct device * dev)
+{
+
+}
+
#endif
+/* changes to device_may_wakeup take effect on the next pm state change.
+ * by default, devices should wakeup if they can.
+ */
+#define device_can_wakeup(dev) \
+ ((dev)->power.can_wakeup)
+#define device_init_wakeup(dev,val) \
+ do { \
+ device_can_wakeup(dev) = !!(val); \
+ device_set_wakeup_enable(dev,val); \
+ } while(0)
+
#endif /* __KERNEL__ */
#endif /* _LINUX_PM_H */