[v2,3/4] via-camera: implement the control framework.
Commit Message
And added a missing kfree to clean up the via_camera struct.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
---
drivers/media/platform/via-camera.c | 60 ++++++++---------------------------
1 file changed, 14 insertions(+), 46 deletions(-)
@@ -18,6 +18,7 @@
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-ctrls.h>
#include <media/ov7670.h>
#include <media/videobuf-dma-sg.h>
#include <linux/delay.h>
@@ -63,6 +64,7 @@ enum viacam_opstate { S_IDLE = 0, S_RUNNING = 1 };
struct via_camera {
struct v4l2_device v4l2_dev;
+ struct v4l2_ctrl_handler ctrl_handler;
struct video_device vdev;
struct v4l2_subdev *sensor;
struct platform_device *platdev;
@@ -818,47 +820,6 @@ static int viacam_g_chip_ident(struct file *file, void *priv,
}
/*
- * Control ops are passed through to the sensor.
- */
-static int viacam_queryctrl(struct file *filp, void *priv,
- struct v4l2_queryctrl *qc)
-{
- struct via_camera *cam = priv;
- int ret;
-
- mutex_lock(&cam->lock);
- ret = sensor_call(cam, core, queryctrl, qc);
- mutex_unlock(&cam->lock);
- return ret;
-}
-
-
-static int viacam_g_ctrl(struct file *filp, void *priv,
- struct v4l2_control *ctrl)
-{
- struct via_camera *cam = priv;
- int ret;
-
- mutex_lock(&cam->lock);
- ret = sensor_call(cam, core, g_ctrl, ctrl);
- mutex_unlock(&cam->lock);
- return ret;
-}
-
-
-static int viacam_s_ctrl(struct file *filp, void *priv,
- struct v4l2_control *ctrl)
-{
- struct via_camera *cam = priv;
- int ret;
-
- mutex_lock(&cam->lock);
- ret = sensor_call(cam, core, s_ctrl, ctrl);
- mutex_unlock(&cam->lock);
- return ret;
-}
-
-/*
* Only one input.
*/
static int viacam_enum_input(struct file *filp, void *priv,
@@ -1214,9 +1175,6 @@ static int viacam_enum_frameintervals(struct file *filp, void *priv,
static const struct v4l2_ioctl_ops viacam_ioctl_ops = {
.vidioc_g_chip_ident = viacam_g_chip_ident,
- .vidioc_queryctrl = viacam_queryctrl,
- .vidioc_g_ctrl = viacam_g_ctrl,
- .vidioc_s_ctrl = viacam_s_ctrl,
.vidioc_enum_input = viacam_enum_input,
.vidioc_g_input = viacam_g_input,
.vidioc_s_input = viacam_s_input,
@@ -1418,8 +1376,12 @@ static __devinit int viacam_probe(struct platform_device *pdev)
ret = v4l2_device_register(&pdev->dev, &cam->v4l2_dev);
if (ret) {
dev_err(&pdev->dev, "Unable to register v4l2 device\n");
- return ret;
+ goto out_free;
}
+ ret = v4l2_ctrl_handler_init(&cam->ctrl_handler, 10);
+ if (ret)
+ goto out_unregister;
+ cam->v4l2_dev.ctrl_handler = &cam->ctrl_handler;
/*
* Convince the system that we can do DMA.
*/
@@ -1436,7 +1398,7 @@ static __devinit int viacam_probe(struct platform_device *pdev)
*/
ret = via_sensor_power_setup(cam);
if (ret)
- goto out_unregister;
+ goto out_ctrl_hdl_free;
via_sensor_power_up(cam);
/*
@@ -1485,8 +1447,12 @@ out_irq:
free_irq(viadev->pdev->irq, cam);
out_power_down:
via_sensor_power_release(cam);
+out_ctrl_hdl_free:
+ v4l2_ctrl_handler_free(&cam->ctrl_handler);
out_unregister:
v4l2_device_unregister(&cam->v4l2_dev);
+out_free:
+ kfree(cam);
return ret;
}
@@ -1499,6 +1465,8 @@ static __devexit int viacam_remove(struct platform_device *pdev)
v4l2_device_unregister(&cam->v4l2_dev);
free_irq(viadev->pdev->irq, cam);
via_sensor_power_release(cam);
+ v4l2_ctrl_handler_free(&cam->ctrl_handler);
+ kfree(cam);
via_cam_info = NULL;
return 0;
}