[media] ov9740: convert to the control framework
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.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/ov9740.c b/drivers/media/video/ov9740.c
index 5920f60..3dd910d 100644
--- a/drivers/media/video/ov9740.c
+++ b/drivers/media/video/ov9740.c
@@ -18,6 +18,7 @@
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-ctrls.h>
#define to_ov9740(sd) container_of(sd, struct ov9740_priv, subdev)
@@ -194,6 +195,7 @@
struct ov9740_priv {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
int ident;
u16 model;
@@ -394,27 +396,6 @@
V4L2_MBUS_FMT_YUYV8_2X8,
};
-static const struct v4l2_queryctrl ov9740_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Vertically",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- },
- {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontally",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- },
-};
-
/* read a register */
static int ov9740_reg_read(struct i2c_client *client, u16 reg, u8 *val)
{
@@ -771,36 +752,18 @@
return 0;
}
-/* Get status of additional camera capabilities */
-static int ov9740_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct ov9740_priv *priv = to_ov9740(sd);
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- ctrl->value = priv->flag_vflip;
- break;
- case V4L2_CID_HFLIP:
- ctrl->value = priv->flag_hflip;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
/* Set status of additional camera capabilities */
-static int ov9740_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int ov9740_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct ov9740_priv *priv = to_ov9740(sd);
+ struct ov9740_priv *priv =
+ container_of(ctrl->handler, struct ov9740_priv, hdl);
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- priv->flag_vflip = ctrl->value;
+ priv->flag_vflip = ctrl->val;
break;
case V4L2_CID_HFLIP:
- priv->flag_hflip = ctrl->value;
+ priv->flag_hflip = ctrl->val;
break;
default:
return -EINVAL;
@@ -925,11 +888,6 @@
return ret;
}
-static struct soc_camera_ops ov9740_ops = {
- .controls = ov9740_controls,
- .num_controls = ARRAY_SIZE(ov9740_controls),
-};
-
/* Request bus settings on camera side */
static int ov9740_g_mbus_config(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg)
@@ -958,8 +916,6 @@
};
static struct v4l2_subdev_core_ops ov9740_core_ops = {
- .g_ctrl = ov9740_g_ctrl,
- .s_ctrl = ov9740_s_ctrl,
.g_chip_ident = ov9740_g_chip_ident,
.s_power = ov9740_s_power,
#ifdef CONFIG_VIDEO_ADV_DEBUG
@@ -973,6 +929,10 @@
.video = &ov9740_video_ops,
};
+static const struct v4l2_ctrl_ops ov9740_ctrl_ops = {
+ .s_ctrl = ov9740_s_ctrl,
+};
+
/*
* i2c_driver function
*/
@@ -980,7 +940,7 @@
const struct i2c_device_id *did)
{
struct ov9740_priv *priv;
- struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct soc_camera_link *icl;
int ret;
@@ -1002,12 +962,24 @@
}
v4l2_i2c_subdev_init(&priv->subdev, client, &ov9740_subdev_ops);
+ v4l2_ctrl_handler_init(&priv->hdl, 13);
+ v4l2_ctrl_new_std(&priv->hdl, &ov9740_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&priv->hdl, &ov9740_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ priv->subdev.ctrl_handler = &priv->hdl;
+ if (priv->hdl.error) {
+ int err = priv->hdl.error;
- icd->ops = &ov9740_ops;
+ kfree(priv);
+ return err;
+ }
ret = ov9740_video_probe(icd, client);
+ if (!ret)
+ ret = v4l2_ctrl_handler_setup(&priv->hdl);
if (ret < 0) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&priv->hdl);
kfree(priv);
}
@@ -1018,8 +990,9 @@
{
struct ov9740_priv *priv = i2c_get_clientdata(client);
+ v4l2_device_unregister_subdev(&priv->subdev);
+ v4l2_ctrl_handler_free(&priv->hdl);
kfree(priv);
-
return 0;
}