diff options
| -rw-r--r-- | drivers/media/video/soc_camera.c | 94 | ||||
| -rw-r--r-- | include/media/soc_camera.h | 2 |
2 files changed, 21 insertions, 75 deletions
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index ac23916552db..b56f4b78273d 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -512,6 +512,7 @@ static int soc_camera_open(struct file *file) if (ret < 0) goto einitvb; } + v4l2_ctrl_handler_setup(&icd->ctrl_handler); } file->private_data = icd; @@ -781,78 +782,6 @@ static int soc_camera_streamoff(struct file *file, void *priv, return 0; } -static int soc_camera_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qc) -{ - struct soc_camera_device *icd = file->private_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - int i; - - WARN_ON(priv != file->private_data); - - if (!qc->id) - return -EINVAL; - - /* First check host controls */ - for (i = 0; i < ici->ops->num_controls; i++) - if (qc->id == ici->ops->controls[i].id) { - memcpy(qc, &(ici->ops->controls[i]), - sizeof(*qc)); - return 0; - } - - if (!icd->ops) - return -EINVAL; - - /* Then device controls */ - for (i = 0; i < icd->ops->num_controls; i++) - if (qc->id == icd->ops->controls[i].id) { - memcpy(qc, &(icd->ops->controls[i]), - sizeof(*qc)); - return 0; - } - - return -EINVAL; -} - -static int soc_camera_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct soc_camera_device *icd = file->private_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct v4l2_subdev *sd = soc_camera_to_subdev(icd); - int ret; - - WARN_ON(priv != file->private_data); - - if (ici->ops->get_ctrl) { - ret = ici->ops->get_ctrl(icd, ctrl); - if (ret != -ENOIOCTLCMD) - return ret; - } - - return v4l2_subdev_call(sd, core, g_ctrl, ctrl); -} - -static int soc_camera_s_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct soc_camera_device *icd = file->private_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct v4l2_subdev *sd = soc_camera_to_subdev(icd); - int ret; - - WARN_ON(priv != file->private_data); - - if (ici->ops->set_ctrl) { - ret = ici->ops->set_ctrl(icd, ctrl); - if (ret != -ENOIOCTLCMD) - return ret; - } - - return v4l2_subdev_call(sd, core, s_ctrl, ctrl); -} - static int soc_camera_cropcap(struct file *file, void *fh, struct v4l2_cropcap *a) { @@ -1055,6 +984,17 @@ static int soc_camera_probe(struct soc_camera_device *icd) dev_info(icd->pdev, "Probing %s\n", dev_name(icd->pdev)); + /* + * Currently the subdev with the largest number of controls (13) is + * ov6550. So let's pick 16 as a hint for the control handler. Note + * that this is a hint only: too large and you waste some memory, too + * small and there is a (very) small performance hit when looking up + * controls in the internal hash. + */ + ret = v4l2_ctrl_handler_init(&icd->ctrl_handler, 16); + if (ret < 0) + return ret; + ret = regulator_bulk_get(icd->pdev, icl->num_regulators, icl->regulators); if (ret < 0) @@ -1108,6 +1048,9 @@ static int soc_camera_probe(struct soc_camera_device *icd) sd = soc_camera_to_subdev(icd); sd->grp_id = (long)icd; + if (v4l2_ctrl_add_handler(&icd->ctrl_handler, sd->ctrl_handler)) + goto ectrl; + /* At this point client .probe() should have run already */ ret = soc_camera_init_user_formats(icd); if (ret < 0) @@ -1146,6 +1089,7 @@ evidstart: mutex_unlock(&icd->video_lock); soc_camera_free_user_formats(icd); eiufmt: +ectrl: if (icl->board_info) { soc_camera_free_i2c(icd); } else { @@ -1162,6 +1106,7 @@ eadd: epower: regulator_bulk_free(icl->num_regulators, icl->regulators); ereg: + v4l2_ctrl_handler_free(&icd->ctrl_handler); return ret; } @@ -1176,6 +1121,7 @@ static int soc_camera_remove(struct soc_camera_device *icd) BUG_ON(!icd->parent); + v4l2_ctrl_handler_free(&icd->ctrl_handler); if (vdev) { video_unregister_device(vdev); icd->vdev = NULL; @@ -1381,9 +1327,6 @@ static const struct v4l2_ioctl_ops soc_camera_ioctl_ops = { .vidioc_dqbuf = soc_camera_dqbuf, .vidioc_streamon = soc_camera_streamon, .vidioc_streamoff = soc_camera_streamoff, - .vidioc_queryctrl = soc_camera_queryctrl, - .vidioc_g_ctrl = soc_camera_g_ctrl, - .vidioc_s_ctrl = soc_camera_s_ctrl, .vidioc_cropcap = soc_camera_cropcap, .vidioc_g_crop = soc_camera_g_crop, .vidioc_s_crop = soc_camera_s_crop, @@ -1412,6 +1355,7 @@ static int video_dev_create(struct soc_camera_device *icd) vdev->ioctl_ops = &soc_camera_ioctl_ops; vdev->release = video_device_release; vdev->tvnorms = V4L2_STD_UNKNOWN; + vdev->ctrl_handler = &icd->ctrl_handler; vdev->lock = &icd->video_lock; icd->vdev = vdev; diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 1864e2242d45..2e15e17130da 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -19,6 +19,7 @@ #include <linux/videodev2.h> #include <media/videobuf-core.h> #include <media/videobuf2-core.h> +#include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> struct file; @@ -40,6 +41,7 @@ struct soc_camera_device { struct soc_camera_sense *sense; /* See comment in struct definition */ struct soc_camera_ops *ops; struct video_device *vdev; + struct v4l2_ctrl_handler ctrl_handler; const struct soc_camera_format_xlate *current_fmt; struct soc_camera_format_xlate *user_formats; int num_user_formats; |