[media] V4L: soc-camera: add enum-frame-size ioctl
add vidioc_enum_framesizes implementation, follow default_g_parm()
and g_mbus_fmt() method
Signed-off-by: Qing Xu <qingx@marvell.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index a66811b..a7820a5 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -191,6 +191,15 @@
return v4l2_subdev_call(sd, core, s_std, *a);
}
+static int soc_camera_enum_fsizes(struct file *file, void *fh,
+ struct v4l2_frmsizeenum *fsize)
+{
+ struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+
+ return ici->ops->enum_fsizes(icd, fsize);
+}
+
static int soc_camera_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
@@ -1175,6 +1184,31 @@
return v4l2_subdev_call(sd, video, s_parm, parm);
}
+static int default_enum_fsizes(struct soc_camera_device *icd,
+ struct v4l2_frmsizeenum *fsize)
+{
+ int ret;
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ const struct soc_camera_format_xlate *xlate;
+ __u32 pixfmt = fsize->pixel_format;
+ struct v4l2_frmsizeenum fsize_mbus = *fsize;
+
+ xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
+ if (!xlate)
+ return -EINVAL;
+ /* map xlate-code to pixel_format, sensor only handle xlate-code*/
+ fsize_mbus.pixel_format = xlate->code;
+
+ ret = v4l2_subdev_call(sd, video, enum_mbus_fsizes, &fsize_mbus);
+ if (ret < 0)
+ return ret;
+
+ *fsize = fsize_mbus;
+ fsize->pixel_format = pixfmt;
+
+ return 0;
+}
+
static void soc_camera_device_init(struct device *dev, void *pdata)
{
dev->platform_data = pdata;
@@ -1210,6 +1244,8 @@
ici->ops->set_parm = default_s_parm;
if (!ici->ops->get_parm)
ici->ops->get_parm = default_g_parm;
+ if (!ici->ops->enum_fsizes)
+ ici->ops->enum_fsizes = default_enum_fsizes;
mutex_lock(&list_lock);
list_for_each_entry(ix, &hosts, list) {
@@ -1317,6 +1353,7 @@
.vidioc_g_input = soc_camera_g_input,
.vidioc_s_input = soc_camera_s_input,
.vidioc_s_std = soc_camera_s_std,
+ .vidioc_enum_framesizes = soc_camera_enum_fsizes,
.vidioc_reqbufs = soc_camera_reqbufs,
.vidioc_try_fmt_vid_cap = soc_camera_try_fmt_vid_cap,
.vidioc_querybuf = soc_camera_querybuf,