diff options
Diffstat (limited to 'drivers/media/video/soc_camera_platform.c')
| -rw-r--r-- | drivers/media/video/soc_camera_platform.c | 115 |
1 files changed, 50 insertions, 65 deletions
diff --git a/drivers/media/video/soc_camera_platform.c b/drivers/media/video/soc_camera_platform.c index d84c134..8168cf4 100644 --- a/drivers/media/video/soc_camera_platform.c +++ b/drivers/media/video/soc_camera_platform.c @@ -16,11 +16,12 @@ #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 v4l2_subdev subdev; struct soc_camera_data_format format; }; @@ -31,36 +32,10 @@ soc_camera_platform_get_info(struct soc_camera_device *icd) return pdev->dev.platform_data; } -static int soc_camera_platform_init(struct soc_camera_device *icd) +static int soc_camera_platform_s_stream(struct v4l2_subdev *sd, int enable) { - struct soc_camera_link *icl = to_soc_camera_link(icd); - - if (icl->power) - icl->power(dev_get_drvdata(&icd->dev), 1); - - return 0; -} - -static int soc_camera_platform_release(struct soc_camera_device *icd) -{ - struct soc_camera_link *icl = to_soc_camera_link(icd); - - if (icl->power) - icl->power(dev_get_drvdata(&icd->dev), 0); - - return 0; -} - -static int soc_camera_platform_start_capture(struct soc_camera_device *icd) -{ - struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd); - return p->set_capture(p, 1); -} - -static int soc_camera_platform_stop_capture(struct soc_camera_device *icd) -{ - 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, @@ -82,16 +57,10 @@ static int soc_camera_platform_set_crop(struct soc_camera_device *icd, 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; @@ -99,12 +68,11 @@ static int soc_camera_platform_try_fmt(struct soc_camera_device *icd, return 0; } -static int soc_camera_platform_video_probe(struct soc_camera_device *icd, - struct platform_device *pdev) +static void soc_camera_platform_video_probe(struct soc_camera_device *icd, + struct platform_device *pdev) { struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev); struct soc_camera_platform_info *p = pdev->dev.platform_data; - int ret; priv->format.name = p->format_name; priv->format.depth = p->format_depth; @@ -113,28 +81,29 @@ static int soc_camera_platform_video_probe(struct soc_camera_device *icd, icd->formats = &priv->format; icd->num_formats = 1; - - /* ..._video_start() does dev_set_drvdata(&icd->dev, &pdev->dev) */ - ret = soc_camera_video_start(icd, &pdev->dev); - soc_camera_video_stop(icd); - return ret; } +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, - .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 = pdev->dev.platform_data; struct soc_camera_device *icd; @@ -143,35 +112,48 @@ static int soc_camera_platform_probe(struct platform_device *pdev) 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; - platform_set_drvdata(pdev, priv); - icd = to_soc_camera_dev(p->dev); - if (!icd) - goto enoicd; - icd->ops = &soc_camera_platform_ops; + platform_set_drvdata(pdev, priv); dev_set_drvdata(&icd->dev, &pdev->dev); + icd->width_min = 0; icd->width_max = p->format.width; icd->height_min = 0; icd->height_max = p->format.height; icd->y_skip_top = 0; + icd->ops = &soc_camera_platform_ops; - ret = soc_camera_platform_video_probe(icd, pdev); - if (ret) { - icd->ops = NULL; - kfree(priv); - } + ici = to_soc_camera_host(icd->dev.parent); + + soc_camera_platform_video_probe(icd, pdev); + + 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) + goto evdrs; return ret; -enoicd: +evdrs: + icd->ops = NULL; + platform_set_drvdata(pdev, NULL); kfree(priv); - return -EINVAL; + return ret; } static int soc_camera_platform_remove(struct platform_device *pdev) @@ -180,7 +162,9 @@ static int soc_camera_platform_remove(struct platform_device *pdev) struct soc_camera_platform_info *p = pdev->dev.platform_data; struct soc_camera_device *icd = to_soc_camera_dev(p->dev); + v4l2_device_unregister_subdev(&priv->subdev); icd->ops = NULL; + platform_set_drvdata(pdev, NULL); kfree(priv); return 0; } @@ -188,6 +172,7 @@ static int soc_camera_platform_remove(struct platform_device *pdev) 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, |