HID: uclogic: Add battery quirk

Some UGEE v2 tablets have a wireless version with an internal battery
and their firmware is able to report their battery level.

However, there was not found a field on their descriptor indicating
whether the tablet has battery or not, making it mandatory to classify
such devices through the UCLOGIC_BATTERY_QUIRK quirk.

Tested-by: Mia Kanashi <[email protected]>
Tested-by: Andreas Grosse <[email protected]>
Signed-off-by: José Expósito <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

Author: JoseExposito

drivers/hid/hid-uclogic-params.c

@@ -1222,6 +1222,11 @@ static int uclogic_params_ugee_v2_init_frame_mouse(struct uclogic_params *p)
  */
 static bool uclogic_params_ugee_v2_has_battery(struct hid_device *hdev)
 {
+	struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	if (drvdata->quirks & UCLOGIC_BATTERY_QUIRK)
+		return true;
+
 	/* The XP-PEN Deco LW vendor, product and version are identical to the
 	 * Deco L. The only difference reported by their firmware is the product
 	 * name. Add a quirk to support battery reporting on the wireless

drivers/hid/hid-uclogic-params.h

@@ -20,6 +20,7 @@
 #include <linux/hid.h>
 
 #define UCLOGIC_MOUSE_FRAME_QUIRK	BIT(0)
+#define UCLOGIC_BATTERY_QUIRK		BIT(1)
 
 /* Types of pen in-range reporting */
 enum uclogic_params_pen_inrange {