[media] uvcvideo: Blacklist more controls for Hercules Dualpix Exchange

The Hercules Dualpix Exchange (06f8:3005) camera expose an absolute zoom
that is not implemented. Blacklist it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c
index a350fad..bce29fd 100644 (file)
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -1499,26 +1499,46 @@ end:
 static void
 uvc_ctrl_prune_entity(struct uvc_device *dev, struct uvc_entity *entity)
 {
-       static const struct {
+       struct uvc_ctrl_blacklist {
                struct usb_device_id id;
                u8 index;
-       } blacklist[] = {
+       };
+
+       static const struct uvc_ctrl_blacklist processing_blacklist[] = {
                { { USB_DEVICE(0x13d3, 0x509b) }, 9 }, /* Gain */
                { { USB_DEVICE(0x1c4f, 0x3000) }, 6 }, /* WB Temperature */
                { { USB_DEVICE(0x5986, 0x0241) }, 2 }, /* Hue */
        };
+       static const struct uvc_ctrl_blacklist camera_blacklist[] = {
+               { { USB_DEVICE(0x06f8, 0x3005) }, 9 }, /* Zoom, Absolute */
+       };
 
-       u8 *controls;
+       const struct uvc_ctrl_blacklist *blacklist;
        unsigned int size;
+       unsigned int count;
        unsigned int i;
+       u8 *controls;
 
-       if (UVC_ENTITY_TYPE(entity) != UVC_VC_PROCESSING_UNIT)
-               return;
+       switch (UVC_ENTITY_TYPE(entity)) {
+       case UVC_VC_PROCESSING_UNIT:
+               blacklist = processing_blacklist;
+               count = ARRAY_SIZE(processing_blacklist);
+               controls = entity->processing.bmControls;
+               size = entity->processing.bControlSize;
+               break;
+
+       case UVC_ITT_CAMERA:
+               blacklist = camera_blacklist;
+               count = ARRAY_SIZE(camera_blacklist);
+               controls = entity->camera.bmControls;
+               size = entity->camera.bControlSize;
+               break;
 
-       controls = entity->processing.bmControls;
-       size = entity->processing.bControlSize;
+       default:
+               return;
+       }
 
-       for (i = 0; i < ARRAY_SIZE(blacklist); ++i) {
+       for (i = 0; i < count; ++i) {
                if (!usb_match_one_id(dev->intf, &blacklist[i].id))
                        continue;