FROMLIST: input: Add KEY_CAMERA_FOCUS event in HID

Our HID device need KEY_CAMERA_FOCUS event to control camera, but this
event is non-existent in current HID driver.
So we add this event in hid-input.c

Bug: 263846073
Link: https://lore.kernel.org/linux-input/Y+4YcnbPwWAnhrPt@kroah.com/
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: fengqi <fengqi@xiaomi.com>
Change-Id: I500881ea8b6b4e31099f2120e2c492f2793bf086

drivers/hid/hid-input.c

@@ -1119,6 +1119,16 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 			return;
 		}
 		goto unknown;
+	case HID_UP_CAMERA:
+		switch (usage->hid & HID_USAGE) {
+		case 0x020:
+			map_key_clear(KEY_CAMERA_FOCUS);	break;
+		case 0x021:
+			map_key_clear(KEY_CAMERA);		break;
+		default:
+			goto ignore;
+		}
+		break;
 
 	case HID_UP_HPVENDOR:	/* Reported on a Dutch layout HP5308 */
 		set_bit(EV_REP, input->evbit);

include/linux/hid.h

@@ -156,6 +156,7 @@ struct hid_item {
 #define HID_UP_DIGITIZER	0x000d0000
 #define HID_UP_PID		0x000f0000
 #define HID_UP_BATTERY		0x00850000
+#define HID_UP_CAMERA 		0x00900000
 #define HID_UP_HPVENDOR         0xff7f0000
 #define HID_UP_HPVENDOR2        0xff010000
 #define HID_UP_MSVENDOR		0xff000000