V4L/DVB (13469): Davinci VPFE Capture: Add support for Control ioctls

Added support for Control IOCTL,
        - s_ctrl
        - g_ctrl
        - queryctrl

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
index 1c3bde7fcd5e..12a1b3d7132d 100644
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ b/drivers/media/video/davinci/vpfe_capture.c
@@ -1413,6 +1413,41 @@ static int vpfe_dqbuf(struct file *file, void *priv,
                                       buf, file->f_flags & O_NONBLOCK);
 }
 
+static int vpfe_queryctrl(struct file *file, void *priv,
+                struct v4l2_queryctrl *qctrl)
+{
+        struct vpfe_device *vpfe_dev = video_drvdata(file);
+        struct vpfe_subdev_info *sdinfo;
+
+        sdinfo = vpfe_dev->current_subdev;
+
+        return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
+                                         core, queryctrl, qctrl);
+
+}
+
+static int vpfe_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl)
+{
+        struct vpfe_device *vpfe_dev = video_drvdata(file);
+        struct vpfe_subdev_info *sdinfo;
+
+        sdinfo = vpfe_dev->current_subdev;
+
+        return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
+                                         core, g_ctrl, ctrl);
+}
+
+static int vpfe_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl)
+{
+        struct vpfe_device *vpfe_dev = video_drvdata(file);
+        struct vpfe_subdev_info *sdinfo;
+
+        sdinfo = vpfe_dev->current_subdev;
+
+        return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
+                                         core, s_ctrl, ctrl);
+}
+
 /*
  * vpfe_calculate_offsets : This function calculates buffers offset
  * for top and bottom field
@@ -1710,6 +1745,9 @@ static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
         .vidioc_querystd         = vpfe_querystd,
         .vidioc_s_std            = vpfe_s_std,
         .vidioc_g_std            = vpfe_g_std,
+        .vidioc_queryctrl        = vpfe_queryctrl,
+        .vidioc_g_ctrl           = vpfe_g_ctrl,
+        .vidioc_s_ctrl           = vpfe_s_ctrl,
         .vidioc_reqbufs          = vpfe_reqbufs,
         .vidioc_querybuf         = vpfe_querybuf,
         .vidioc_qbuf             = vpfe_qbuf,