HID: 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.

Signed-off-by: fengqi <fengqi@xiaomi.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 7fc967964dd8167de925c977e2207b8cb82b4603..fbf5db9a0d677455be5ebd8dd63cbe4039526f5e 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1261,6 +1261,16 @@ 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);

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 1ea8c7a3570b2880aeb353d9707ad4f9a7df1ca4..bff9f459db368cb5efca0ced03cc9d91b1702b59 100644 (file)
--- a/include/linux/hid.h
+++ b/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