1 files changed, 100 insertions, 34 deletions

diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 91b34812cd84..fe82022478e7 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -29,6 +29,32 @@
 #include <linux/device.h>
 #include <linux/workqueue.h>
 
+#define THERMAL_TRIPS_NONE      -1
+#define THERMAL_MAX_TRIPS       12
+#define THERMAL_NAME_LENGTH     20
+
+/* No upper/lower limit requirement */
+#define THERMAL_NO_LIMIT        -1UL
+
+/* Unit conversion macros */
+#define KELVIN_TO_CELSIUS(t)    (long)(((long)t-2732 >= 0) ?    \
+                                ((long)t-2732+5)/10 : ((long)t-2732-5)/10)
+#define CELSIUS_TO_KELVIN(t)    ((t)*10+2732)
+
+/* Adding event notification support elements */
+#define THERMAL_GENL_FAMILY_NAME                "thermal_event"
+#define THERMAL_GENL_VERSION                    0x01
+#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_group"
+
+/* Default Thermal Governor */
+#if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
+#define DEFAULT_THERMAL_GOVERNOR       "step_wise"
+#elif defined(CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE)
+#define DEFAULT_THERMAL_GOVERNOR       "fair_share"
+#elif defined(CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE)
+#define DEFAULT_THERMAL_GOVERNOR       "user_space"
+#endif
+
 struct thermal_zone_device;
 struct thermal_cooling_device;
 
@@ -50,6 +76,30 @@ enum thermal_trend {
         THERMAL_TREND_DROPPING, /* temperature is dropping */
 };
 
+/* Events supported by Thermal Netlink */
+enum events {
+        THERMAL_AUX0,
+        THERMAL_AUX1,
+        THERMAL_CRITICAL,
+        THERMAL_DEV_FAULT,
+};
+
+/* attributes of thermal_genl_family */
+enum {
+        THERMAL_GENL_ATTR_UNSPEC,
+        THERMAL_GENL_ATTR_EVENT,
+        __THERMAL_GENL_ATTR_MAX,
+};
+#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
+
+/* commands supported by the thermal_genl_family */
+enum {
+        THERMAL_GENL_CMD_UNSPEC,
+        THERMAL_GENL_CMD_EVENT,
+        __THERMAL_GENL_CMD_MAX,
+};
+#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
+
 struct thermal_zone_device_ops {
         int (*bind) (struct thermal_zone_device *,
                      struct thermal_cooling_device *);
@@ -83,11 +133,6 @@ struct thermal_cooling_device_ops {
         int (*set_cur_state) (struct thermal_cooling_device *, unsigned long);
 };
 
-#define THERMAL_NO_LIMIT -1UL /* no upper/lower limit requirement */
-
-#define THERMAL_TRIPS_NONE -1
-#define THERMAL_MAX_TRIPS 12
-#define THERMAL_NAME_LENGTH 20
 struct thermal_cooling_device {
         int id;
         char type[THERMAL_NAME_LENGTH];
@@ -100,10 +145,6 @@ struct thermal_cooling_device {
         struct list_head node;
 };
 
-#define KELVIN_TO_CELSIUS(t)    (long)(((long)t-2732 >= 0) ?    \
-                                ((long)t-2732+5)/10 : ((long)t-2732-5)/10)
-#define CELSIUS_TO_KELVIN(t)    ((t)*10+2732)
-
 struct thermal_attr {
         struct device_attribute attr;
         char name[THERMAL_NAME_LENGTH];
@@ -125,46 +166,61 @@ struct thermal_zone_device {
         int passive;
         unsigned int forced_passive;
         const struct thermal_zone_device_ops *ops;
+        const struct thermal_zone_params *tzp;
+        struct thermal_governor *governor;
         struct list_head thermal_instances;
         struct idr idr;
         struct mutex lock; /* protect thermal_instances list */
         struct list_head node;
         struct delayed_work poll_queue;
 };
-/* Adding event notification support elements */
-#define THERMAL_GENL_FAMILY_NAME                "thermal_event"
-#define THERMAL_GENL_VERSION                    0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME           "thermal_mc_group"
 
-enum events {
-        THERMAL_AUX0,
-        THERMAL_AUX1,
-        THERMAL_CRITICAL,
-        THERMAL_DEV_FAULT,
+/* Structure that holds thermal governor information */
+struct thermal_governor {
+        char name[THERMAL_NAME_LENGTH];
+        int (*throttle)(struct thermal_zone_device *tz, int trip);
+        struct list_head        governor_list;
+        struct module           *owner;
 };
 
-struct thermal_genl_event {
-        u32 orig;
-        enum events event;
+/* Structure that holds binding parameters for a zone */
+struct thermal_bind_params {
+        struct thermal_cooling_device *cdev;
+
+        /*
+         * This is a measure of 'how effectively these devices can
+         * cool 'this' thermal zone. The shall be determined by platform
+         * characterization. This is on a 'percentage' scale.
+         * See Documentation/thermal/sysfs-api.txt for more information.
+         */
+        int weight;
+
+        /*
+         * This is a bit mask that gives the binding relation between this
+         * thermal zone and cdev, for a particular trip point.
+         * See Documentation/thermal/sysfs-api.txt for more information.
+         */
+        int trip_mask;
+        int (*match) (struct thermal_zone_device *tz,
+                        struct thermal_cooling_device *cdev);
 };
-/* attributes of thermal_genl_family */
-enum {
-        THERMAL_GENL_ATTR_UNSPEC,
-        THERMAL_GENL_ATTR_EVENT,
-        __THERMAL_GENL_ATTR_MAX,
+
+/* Structure to define Thermal Zone parameters */
+struct thermal_zone_params {
+        char governor_name[THERMAL_NAME_LENGTH];
+        int num_tbps;   /* Number of tbp entries */
+        struct thermal_bind_params *tbp;
 };
-#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
 
-/* commands supported by the thermal_genl_family */
-enum {
-        THERMAL_GENL_CMD_UNSPEC,
-        THERMAL_GENL_CMD_EVENT,
-        __THERMAL_GENL_CMD_MAX,
+struct thermal_genl_event {
+        u32 orig;
+        enum events event;
 };
-#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
 
+/* Function declarations */
 struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
-                void *, const struct thermal_zone_device_ops *, int, int);
+                void *, const struct thermal_zone_device_ops *,
+                const struct thermal_zone_params *, int, int);
 void thermal_zone_device_unregister(struct thermal_zone_device *);
 
 int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
@@ -173,10 +229,20 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
 int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
                                        struct thermal_cooling_device *);
 void thermal_zone_device_update(struct thermal_zone_device *);
+
 struct thermal_cooling_device *thermal_cooling_device_register(char *, void *,
                 const struct thermal_cooling_device_ops *);
 void thermal_cooling_device_unregister(struct thermal_cooling_device *);
 
+int get_tz_trend(struct thermal_zone_device *, int);
+struct thermal_instance *get_thermal_instance(struct thermal_zone_device *,
+                struct thermal_cooling_device *, int);
+void thermal_cdev_update(struct thermal_cooling_device *);
+void notify_thermal_framework(struct thermal_zone_device *, int);
+
+int thermal_register_governor(struct thermal_governor *);
+void thermal_unregister_governor(struct thermal_governor *);
+
 #ifdef CONFIG_NET
 extern int thermal_generate_netlink_event(u32 orig, enum events event);
 #else