+static int wlan_led_unknown_state(struct asus_wmi *asus)
+{
+ u32 result;
+
+ asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
+
+ return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
+}
+
+static int wlan_led_presence(struct asus_wmi *asus)
+{
+ u32 result;
+
+ asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
+
+ return result & ASUS_WMI_DSTS_PRESENCE_BIT;
+}
+
+static void wlan_led_update(struct work_struct *work)
+{
+ int ctrl_param;
+ struct asus_wmi *asus;
+
+ asus = container_of(work, struct asus_wmi, wlan_led_work);
+
+ ctrl_param = asus->wlan_led_wk;
+ asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
+}
+
+static void wlan_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct asus_wmi *asus;
+
+ asus = container_of(led_cdev, struct asus_wmi, wlan_led);
+
+ asus->wlan_led_wk = !!value;
+ queue_work(asus->led_workqueue, &asus->wlan_led_work);
+}
+
+static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
+{
+ struct asus_wmi *asus;
+ u32 result;
+
+ asus = container_of(led_cdev, struct asus_wmi, wlan_led);
+ asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
+
+ return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
+}
+