include/linux/pm_legacy.h

   1 #ifndef __LINUX_PM_LEGACY_H__
   2 #define __LINUX_PM_LEGACY_H__
   3
   4 #include <linux/config.h>
   5
   6 #ifdef CONFIG_PM_LEGACY
   7
   8 extern int pm_active;
   9
  10 #define PM_IS_ACTIVE() (pm_active != 0)
  11
  12 /*
  13  * Register a device with power management
  14  */
  15 struct pm_dev __deprecated *
  16 pm_register(pm_dev_t type, unsigned long id, pm_callback callback);
  17
  18 /*
  19  * Unregister a device with power management
  20  */
  21 void __deprecated pm_unregister(struct pm_dev *dev);
  22
  23 /*
  24  * Unregister all devices with matching callback
  25  */
  26 void __deprecated pm_unregister_all(pm_callback callback);
  27
  28 /*
  29  * Send a request to all devices
  30  */
  31 int __deprecated pm_send_all(pm_request_t rqst, void *data);
  32
  33 #else /* CONFIG_PM_LEGACY */
  34
  35 #define PM_IS_ACTIVE() 0
  36
  37 static inline struct pm_dev *pm_register(pm_dev_t type,
  38                                          unsigned long id,
  39                                          pm_callback callback)
  40 {
  41         return NULL;
  42 }
  43
  44 static inline void pm_unregister(struct pm_dev *dev) {}
  45
  46 static inline void pm_unregister_all(pm_callback callback) {}
  47
  48 static inline int pm_send_all(pm_request_t rqst, void *data)
  49 {
  50         return 0;
  51 }
  52
  53 #endif /* CONFIG_PM_LEGACY */
  54
  55 #endif /* __LINUX_PM_LEGACY_H__ */
  56