#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-subdev.h>
#include <media/soc_camera.h>
#include <media/soc_camera_platform.h>
struct soc_camera_platform_priv {
- struct soc_camera_platform_info *info;
- struct soc_camera_device icd;
+ struct v4l2_subdev subdev;
struct soc_camera_data_format format;
};
-static struct soc_camera_platform_info *
-soc_camera_platform_get_info(struct soc_camera_device *icd)
+static struct soc_camera_platform_priv *get_priv(struct platform_device *pdev)
{
- struct soc_camera_platform_priv *priv;
- priv = container_of(icd, struct soc_camera_platform_priv, icd);
- return priv->info;
-}
-
-static int soc_camera_platform_init(struct soc_camera_device *icd)
-{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
-
- if (p->power)
- p->power(1);
-
- return 0;
-}
-
-static int soc_camera_platform_release(struct soc_camera_device *icd)
-{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
-
- if (p->power)
- p->power(0);
-
- return 0;
+ struct v4l2_subdev *subdev = platform_get_drvdata(pdev);
+ return container_of(subdev, struct soc_camera_platform_priv, subdev);
}
-static int soc_camera_platform_start_capture(struct soc_camera_device *icd)
+static struct soc_camera_platform_info *get_info(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
- return p->set_capture(p, 1);
+ struct platform_device *pdev = to_platform_device(to_soc_camera_control(icd));
+ return pdev->dev.platform_data;
}
-static int soc_camera_platform_stop_capture(struct soc_camera_device *icd)
+static int soc_camera_platform_s_stream(struct v4l2_subdev *sd, int enable)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
- return p->set_capture(p, 0);
+ struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
+ return p->set_capture(p, enable);
}
static int soc_camera_platform_set_bus_param(struct soc_camera_device *icd,
static unsigned long
soc_camera_platform_query_bus_param(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct soc_camera_platform_info *p = get_info(icd);
return p->bus_param;
}
-static int soc_camera_platform_set_crop(struct soc_camera_device *icd,
- struct v4l2_rect *rect)
-{
- return 0;
-}
-
-static int soc_camera_platform_set_fmt(struct soc_camera_device *icd,
+static int soc_camera_platform_try_fmt(struct v4l2_subdev *sd,
struct v4l2_format *f)
{
- return 0;
-}
-
-static int soc_camera_platform_try_fmt(struct soc_camera_device *icd,
- struct v4l2_format *f)
-{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
struct v4l2_pix_format *pix = &f->fmt.pix;
pix->width = p->format.width;
return 0;
}
-static int soc_camera_platform_video_probe(struct soc_camera_device *icd)
+static void soc_camera_platform_video_probe(struct soc_camera_device *icd,
+ struct platform_device *pdev)
{
- struct soc_camera_platform_priv *priv;
- priv = container_of(icd, struct soc_camera_platform_priv, icd);
+ struct soc_camera_platform_priv *priv = get_priv(pdev);
+ struct soc_camera_platform_info *p = pdev->dev.platform_data;
- priv->format.name = priv->info->format_name;
- priv->format.depth = priv->info->format_depth;
- priv->format.fourcc = priv->info->format.pixelformat;
- priv->format.colorspace = priv->info->format.colorspace;
+ priv->format.name = p->format_name;
+ priv->format.depth = p->format_depth;
+ priv->format.fourcc = p->format.pixelformat;
+ priv->format.colorspace = p->format.colorspace;
icd->formats = &priv->format;
icd->num_formats = 1;
-
- return soc_camera_video_start(icd);
}
-static void soc_camera_platform_video_remove(struct soc_camera_device *icd)
-{
- soc_camera_video_stop(icd);
-}
+static struct v4l2_subdev_core_ops platform_subdev_core_ops;
+
+static struct v4l2_subdev_video_ops platform_subdev_video_ops = {
+ .s_stream = soc_camera_platform_s_stream,
+ .try_fmt = soc_camera_platform_try_fmt,
+};
+
+static struct v4l2_subdev_ops platform_subdev_ops = {
+ .core = &platform_subdev_core_ops,
+ .video = &platform_subdev_video_ops,
+};
static struct soc_camera_ops soc_camera_platform_ops = {
- .owner = THIS_MODULE,
- .probe = soc_camera_platform_video_probe,
- .remove = soc_camera_platform_video_remove,
- .init = soc_camera_platform_init,
- .release = soc_camera_platform_release,
- .start_capture = soc_camera_platform_start_capture,
- .stop_capture = soc_camera_platform_stop_capture,
- .set_crop = soc_camera_platform_set_crop,
- .set_fmt = soc_camera_platform_set_fmt,
- .try_fmt = soc_camera_platform_try_fmt,
.set_bus_param = soc_camera_platform_set_bus_param,
.query_bus_param = soc_camera_platform_query_bus_param,
};
static int soc_camera_platform_probe(struct platform_device *pdev)
{
+ struct soc_camera_host *ici;
struct soc_camera_platform_priv *priv;
- struct soc_camera_platform_info *p;
+ struct soc_camera_platform_info *p = pdev->dev.platform_data;
struct soc_camera_device *icd;
int ret;
- p = pdev->dev.platform_data;
if (!p)
return -EINVAL;
+ if (!p->dev) {
+ dev_err(&pdev->dev,
+ "Platform has not set soc_camera_device pointer!\n");
+ return -EINVAL;
+ }
+
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- priv->info = p;
- platform_set_drvdata(pdev, priv);
+ icd = to_soc_camera_dev(p->dev);
+
+ /* soc-camera convention: control's drvdata points to the subdev */
+ platform_set_drvdata(pdev, &priv->subdev);
+ /* Set the control device reference */
+ dev_set_drvdata(&icd->dev, &pdev->dev);
+
+ icd->width_min = 0;
+ icd->rect_max.width = p->format.width;
+ icd->height_min = 0;
+ icd->rect_max.height = p->format.height;
+ icd->y_skip_top = 0;
+ icd->ops = &soc_camera_platform_ops;
+
+ ici = to_soc_camera_host(icd->dev.parent);
- icd = &priv->icd;
- icd->ops = &soc_camera_platform_ops;
- icd->control = &pdev->dev;
- icd->width_min = 0;
- icd->width_max = priv->info->format.width;
- icd->height_min = 0;
- icd->height_max = priv->info->format.height;
- icd->y_skip_top = 0;
- icd->iface = priv->info->iface;
+ soc_camera_platform_video_probe(icd, pdev);
- ret = soc_camera_device_register(icd);
+ v4l2_subdev_init(&priv->subdev, &platform_subdev_ops);
+ v4l2_set_subdevdata(&priv->subdev, p);
+ priv->subdev.grp_id = (__u32)icd;
+ strncpy(priv->subdev.name, dev_name(&pdev->dev), V4L2_SUBDEV_NAME_SIZE);
+
+ ret = v4l2_device_register_subdev(&ici->v4l2_dev, &priv->subdev);
if (ret)
- kfree(priv);
+ goto evdrs;
+
+ return ret;
+evdrs:
+ icd->ops = NULL;
+ platform_set_drvdata(pdev, NULL);
+ kfree(priv);
return ret;
}
static int soc_camera_platform_remove(struct platform_device *pdev)
{
- struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev);
+ struct soc_camera_platform_priv *priv = get_priv(pdev);
+ struct soc_camera_platform_info *p = pdev->dev.platform_data;
+ struct soc_camera_device *icd = to_soc_camera_dev(p->dev);
- soc_camera_device_unregister(&priv->icd);
+ v4l2_device_unregister_subdev(&priv->subdev);
+ icd->ops = NULL;
+ platform_set_drvdata(pdev, NULL);
kfree(priv);
return 0;
}
static struct platform_driver soc_camera_platform_driver = {
.driver = {
.name = "soc_camera_platform",
+ .owner = THIS_MODULE,
},
.probe = soc_camera_platform_probe,
.remove = soc_camera_platform_remove,
MODULE_DESCRIPTION("SoC Camera Platform driver");
MODULE_AUTHOR("Magnus Damm");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:soc_camera_platform");
projects / mirror_ubuntu-artful-kernel.git / blobdiff