[media] pvrusb2: implement VIDIOC_QUERYSTD

Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 17 insertions, 0 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index e98d3821279..5a6f24d1246 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2993,6 +2993,13 @@ static void pvr2_subdev_set_control(struct pvr2_hdw *hdw, int id,
                 pvr2_subdev_set_control(hdw, id, #lab, (hdw)->lab##_val); \
         }
 
+int pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw, v4l2_std_id *std)
+{
+        v4l2_device_call_all(&hdw->v4l2_dev, 0,
+                             video, querystd, std);
+        return 0;
+}
+
 /* Execute whatever commands are required to update the state of all the
    sub-devices so that they match our current control values. */
 static void pvr2_subdev_update(struct pvr2_hdw *hdw)
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
index d7753ae9ff4..66546580b17 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h
@@ -214,6 +214,9 @@ struct pvr2_stream *pvr2_hdw_get_video_stream(struct pvr2_hdw *);
 int pvr2_hdw_get_stdenum_value(struct pvr2_hdw *hdw,struct v4l2_standard *std,
                                unsigned int idx);
 
+/* Get the detected video standard */
+int pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw, v4l2_std_id *std);
+
 /* Enable / disable retrieval of CPU firmware or prom contents.  This must
    be enabled before pvr2_hdw_cpufw_get() will function.  Note that doing
    this may prevent the device from running (and leaving this mode may
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
index e27f8ab7696..0d029da07e6 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
@@ -227,6 +227,13 @@ static long pvr2_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                 break;
         }
 
+        case VIDIOC_QUERYSTD:
+        {
+                v4l2_std_id *std = arg;
+                ret = pvr2_hdw_get_detected_std(hdw, std);
+                break;
+        }
+
         case VIDIOC_G_STD:
         {
                 int val = 0;