netfilter: xtables: move extension arguments into compound structure (1/6)
[safe/jmp/linux-2.6] / include / linux / leds.h
index 494bed7..d41ccb5 100644 (file)
 #define __LINUX_LEDS_H_INCLUDED
 
 #include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/rwsem.h>
 
 struct device;
-struct class_device;
 /*
  * LED Core
  */
@@ -34,16 +35,24 @@ struct led_classdev {
 #define LED_SUSPENDED          (1 << 0)
 
        /* Set LED brightness level */
+       /* Must not sleep, use a workqueue if needed */
        void            (*brightness_set)(struct led_classdev *led_cdev,
                                          enum led_brightness brightness);
+       /* Get LED brightness level */
+       enum led_brightness (*brightness_get)(struct led_classdev *led_cdev);
 
-       struct class_device     *class_dev;
+       /* Activate hardware accelerated blink */
+       int             (*blink_set)(struct led_classdev *led_cdev,
+                                    unsigned long *delay_on,
+                                    unsigned long *delay_off);
+
+       struct device           *dev;
        struct list_head         node;                  /* LED Device list */
-       char                    *default_trigger;       /* Trigger to use */
+       const char              *default_trigger;       /* Trigger to use */
 
 #ifdef CONFIG_LEDS_TRIGGERS
        /* Protects the trigger data below */
-       rwlock_t                 trigger_lock;
+       struct rw_semaphore      trigger_lock;
 
        struct led_trigger      *trigger;
        struct list_head         trig_list;
@@ -53,7 +62,7 @@ struct led_classdev {
 
 extern int led_classdev_register(struct device *parent,
                                 struct led_classdev *led_cdev);
-extern void led_classdev_unregister(struct led_classdev *led_cdev);
+extern void led_classdev_unregister(struct led_classdev *lcd);
 extern void led_classdev_suspend(struct led_classdev *led_cdev);
 extern void led_classdev_resume(struct led_classdev *led_cdev);
 
@@ -109,4 +118,35 @@ extern void ledtrig_ide_activity(void);
 #define ledtrig_ide_activity() do {} while(0)
 #endif
 
+/*
+ * Generic LED platform data for describing LED names and default triggers.
+ */
+struct led_info {
+       const char      *name;
+       char            *default_trigger;
+       int             flags;
+};
+
+struct led_platform_data {
+       int             num_leds;
+       struct led_info *leds;
+};
+
+/* For the leds-gpio driver */
+struct gpio_led {
+       const char *name;
+       char *default_trigger;
+       unsigned        gpio;
+       u8              active_low;
+};
+
+struct gpio_led_platform_data {
+       int             num_leds;
+       struct gpio_led *leds;
+       int             (*gpio_blink_set)(unsigned gpio,
+                                       unsigned long *delay_on,
+                                       unsigned long *delay_off);
+};
+
+
 #endif         /* __LINUX_LEDS_H_INCLUDED */