media: pvrusb2: Convert queryctrl to query_ext_ctrl

JIRA: https://issues.redhat.com/browse/RHEL-78934

commit 8b5ebc6
Author: Ricardo Ribalda <ribalda@chromium.org>
Date: Sun, 23 Feb 2025 18:58:05 +0000

  The driver was missing support for query_ext_ctrl. Instead of adding a
  new callback for it, replace the current implementation of queryctrl and
  let the ioctl framework emulate the old function.

  Most of the fields are identical, so the change is pretty simple.

  Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
  Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
  Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Signed-off-by: Desnes Nunes <desnesn@redhat.com>

Author: Desnes Nunes

drivers/media/usb/pvrusb2/pvrusb2-v4l2.c

@@ -497,8 +497,8 @@ static int pvr2_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
 	return pvr2_hdw_set_streaming(hdw, 0);
 }
 
-static int pvr2_queryctrl(struct file *file, void *priv,
-		struct v4l2_queryctrl *vc)
+static int pvr2_query_ext_ctrl(struct file *file, void *priv,
+			       struct v4l2_query_ext_ctrl *vc)
 {
 	struct pvr2_v4l2_fh *fh = file->private_data;
 	struct pvr2_hdw *hdw = fh->channel.mc_head->hdw;
@@ -521,13 +521,16 @@ static int pvr2_queryctrl(struct file *file, void *priv,
 	}
 
 	pvr2_trace(PVR2_TRACE_V4LIOCTL,
-			"QUERYCTRL id=0x%x mapping name=%s (%s)",
+			"QUERYEXTCTRL id=0x%x mapping name=%s (%s)",
 			vc->id, pvr2_ctrl_get_name(cptr),
 			pvr2_ctrl_get_desc(cptr));
 	strscpy(vc->name, pvr2_ctrl_get_desc(cptr), sizeof(vc->name));
 	vc->flags = pvr2_ctrl_get_v4lflags(cptr);
 	pvr2_ctrl_get_def(cptr, &val);
 	vc->default_value = val;
+	vc->nr_of_dims = 0;
+	vc->elems = 1;
+	vc->elem_size = 4;
 	switch (pvr2_ctrl_get_type(cptr)) {
 	case pvr2_ctl_enum:
 		vc->type = V4L2_CTRL_TYPE_MENU;
@@ -549,7 +552,7 @@ static int pvr2_queryctrl(struct file *file, void *priv,
 		break;
 	default:
 		pvr2_trace(PVR2_TRACE_V4LIOCTL,
-				"QUERYCTRL id=0x%x name=%s not mappable",
+				"QUERYEXTCTRL id=0x%x name=%s not mappable",
 				vc->id, pvr2_ctrl_get_name(cptr));
 		return -EINVAL;
 	}
@@ -812,7 +815,7 @@ static const struct v4l2_ioctl_ops pvr2_ioctl_ops = {
 	.vidioc_try_fmt_vid_cap		    = pvr2_try_fmt_vid_cap,
 	.vidioc_streamon		    = pvr2_streamon,
 	.vidioc_streamoff		    = pvr2_streamoff,
-	.vidioc_queryctrl		    = pvr2_queryctrl,
+	.vidioc_query_ext_ctrl		    = pvr2_query_ext_ctrl,
 	.vidioc_querymenu		    = pvr2_querymenu,
 	.vidioc_g_ctrl			    = pvr2_g_ctrl,
 	.vidioc_s_ctrl			    = pvr2_s_ctrl,