backport/backport-include/linux/thermal.h

   1 #ifndef __BACKPORT_LINUX_THERMAL_H
   2 #define __BACKPORT_LINUX_THERMAL_H
   3 #include_next <linux/thermal.h>
   4 #include <linux/version.h>
   5
   6 #if LINUX_VERSION_IS_LESS(3,8,0)
   7 #include <linux/errno.h>
   8
   9 struct thermal_bind_params {
  10         struct thermal_cooling_device *cdev;
  11         int weight;
  12         int trip_mask;
  13         int (*match)(struct thermal_zone_device *tz,
  14                      struct thermal_cooling_device *cdev);
  15 };
  16
  17 struct thermal_zone_params {
  18         int num_tbps;
  19         struct thermal_bind_params *tbp;
  20 };
  21
  22 static inline struct thermal_zone_device *
  23 backport_thermal_zone_device_register(const char *type, int trips, int mask,
  24                                       void *devdata,
  25                                       struct thermal_zone_device_ops *ops,
  26                                       const struct thermal_zone_params *tzp,
  27                                       int passive_delay, int polling_delay)
  28 {
  29         return ERR_PTR(-EOPNOTSUPP);
  30 }
  31 #define thermal_zone_device_register backport_thermal_zone_device_register
  32
  33 static inline void thermal_notify_framework(struct thermal_zone_device *tz,
  34         int trip)
  35 { }
  36 #else /* < 3.8.0 */
  37
  38 #if LINUX_VERSION_IS_LESS(3,10,0)
  39 #define thermal_notify_framework notify_thermal_framework
  40 #endif /* LINUX_VERSION_IS_LESS(3,10,0) */
  41
  42 #if LINUX_VERSION_IS_LESS(4,3,0)
  43
  44 typedef struct thermal_zone_device_ops old_thermal_zone_device_ops_t;
  45
  46 /* also add a way to call the old register and unregister functions */
  47 static inline struct thermal_zone_device *old_thermal_zone_device_register(
  48         const char *type, int trips, int mask, void *devdata,
  49         old_thermal_zone_device_ops_t *_ops,
  50         const struct thermal_zone_params *_tzp,
  51         int passive_delay, int polling_delay)
  52 {
  53         struct thermal_zone_device_ops *ops =
  54                 (struct thermal_zone_device_ops *) _ops;
  55
  56         /* cast the const away */
  57         struct thermal_zone_params *tzp =
  58                 (struct thermal_zone_params *)_tzp;
  59
  60         return thermal_zone_device_register(type, trips, mask, devdata,
  61                                             ops, tzp, passive_delay,
  62                                             polling_delay);
  63 }
  64
  65 static inline
  66 void old_thermal_zone_device_unregister(struct thermal_zone_device *dev)
  67 {
  68         thermal_zone_device_unregister(dev);
  69 }
  70
  71 struct backport_thermal_zone_device_ops {
  72         int (*bind) (struct thermal_zone_device *,
  73                      struct thermal_cooling_device *);
  74         int (*unbind) (struct thermal_zone_device *,
  75                        struct thermal_cooling_device *);
  76         int (*get_temp) (struct thermal_zone_device *, int *);
  77         int (*get_mode) (struct thermal_zone_device *,
  78                          enum thermal_device_mode *);
  79         int (*set_mode) (struct thermal_zone_device *,
  80                 enum thermal_device_mode);
  81         int (*get_trip_type) (struct thermal_zone_device *, int,
  82                 enum thermal_trip_type *);
  83         int (*get_trip_temp) (struct thermal_zone_device *, int, int *);
  84         int (*set_trip_temp) (struct thermal_zone_device *, int, int);
  85         int (*get_trip_hyst) (struct thermal_zone_device *, int, int *);
  86         int (*set_trip_hyst) (struct thermal_zone_device *, int, int);
  87         int (*get_crit_temp) (struct thermal_zone_device *, int *);
  88         int (*set_emul_temp) (struct thermal_zone_device *, int);
  89         int (*get_trend) (struct thermal_zone_device *, int,
  90                           enum thermal_trend *);
  91         int (*notify) (struct thermal_zone_device *, int,
  92                        enum thermal_trip_type);
  93 };
  94 #define thermal_zone_device_ops LINUX_BACKPORT(thermal_zone_device_ops)
  95
  96 #undef thermal_zone_device_register
  97 struct thermal_zone_device *backport_thermal_zone_device_register(
  98         const char *type, int trips, int mask, void *devdata,
  99         struct thermal_zone_device_ops *ops,
 100         const struct thermal_zone_params *tzp,
 101         int passive_delay, int polling_delay);
 102
 103 #define thermal_zone_device_register \
 104         LINUX_BACKPORT(thermal_zone_device_register)
 105
 106 #undef thermal_zone_device_unregister
 107 void backport_thermal_zone_device_unregister(struct thermal_zone_device *);
 108 #define thermal_zone_device_unregister                  \
 109         LINUX_BACKPORT(thermal_zone_device_unregister)
 110
 111 #endif /* LINUX_VERSION_IS_LESS(4,3,0) */
 112 #endif /* ! < 3.8.0 */
 113
 114 #endif /* __BACKPORT_LINUX_THERMAL_H */