HID: asus: add ROG Ally N-Key ID and keycodes

A handful of buttons on the ROG Ally are not actually part of the xpad
device and are instead keyboard keys (a typical use of the MCU that asus
uses). We attach a group of F<num> key codes which aren't used much and
which the handheld community has already accepted as defaults here.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

drivers/hid/hid-asus.c

@@ -847,7 +847,10 @@ static int asus_input_mapping(struct hid_device *hdev,
 		case 0xb3: asus_map_key_clear(KEY_PROG3);	break; /* Fn+Left next aura */
 		case 0x6a: asus_map_key_clear(KEY_F13);		break; /* Screenpad toggle */
 		case 0x4b: asus_map_key_clear(KEY_F14);		break; /* Arrows/Pg-Up/Dn toggle */
-
+		case 0xa5: asus_map_key_clear(KEY_F15);		break; /* ROG Ally left back */
+		case 0xa6: asus_map_key_clear(KEY_F16);		break; /* ROG Ally QAM button */
+		case 0xa7: asus_map_key_clear(KEY_F17);		break; /* ROG Ally ROG long-press */
+		case 0xa8: asus_map_key_clear(KEY_F18);		break; /* ROG Ally ROG long-press-release */
 
 		default:
 			/* ASUS lazily declares 256 usages, ignore the rest,
@@ -1239,6 +1242,9 @@ static const struct hid_device_id asus_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 	    USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD3),
 	  QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
+	    USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY),
+	  QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 	    USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD),
 	  QUIRK_ROG_CLAYMORE_II_KEYBOARD },

drivers/hid/hid-ids.h

@@ -208,6 +208,7 @@
 #define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD	0x1866
 #define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD2	0x19b6
 #define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD3	0x1a30
+#define USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY		0x1abe
 #define USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD	0x196b
 #define USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD	0x1869