return vb2_prepare_buf(&icd->vb2_vidq, b);
}
-/* Always entered with .video_lock held */
+/* Always entered with .host_lock held */
static int soc_camera_init_user_formats(struct soc_camera_device *icd)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return ret;
}
-/* Always entered with .video_lock held */
+/* Always entered with .host_lock held */
static void soc_camera_free_user_formats(struct soc_camera_device *icd)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
ici = to_soc_camera_host(icd->parent);
mutex_unlock(&list_lock);
- if (mutex_lock_interruptible(&icd->video_lock))
+ if (mutex_lock_interruptible(&ici->host_lock))
return -ERESTARTSYS;
if (!try_module_get(ici->ops->owner)) {
dev_err(icd->pdev, "Couldn't lock capture bus driver.\n");
if (icl->reset)
icl->reset(icd->pdev);
- mutex_lock(&ici->host_lock);
ret = ici->ops->add(icd);
- mutex_unlock(&ici->host_lock);
if (ret < 0) {
dev_err(icd->pdev, "Couldn't activate the camera: %d\n", ret);
goto eiciadd;
* Try to configure with default parameters. Notice: this is the
* very first open, so, we cannot race against other calls,
* apart from someone else calling open() simultaneously, but
- * .video_lock is protecting us against it.
+ * .host_lock is protecting us against it.
*/
ret = soc_camera_set_fmt(icd, &f);
if (ret < 0)
}
v4l2_ctrl_handler_setup(&icd->ctrl_handler);
}
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
file->private_data = icd;
dev_dbg(icd->pdev, "camera device open\n");
return 0;
/*
- * First four errors are entered with the .video_lock held
+ * First four errors are entered with the .host_lock held
* and use_count == 1
*/
einitvb:
eresume:
__soc_camera_power_off(icd);
epower:
- mutex_lock(&ici->host_lock);
ici->ops->remove(icd);
- mutex_unlock(&ici->host_lock);
eiciadd:
icd->use_count--;
module_put(ici->ops->owner);
emodule:
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
return ret;
}
struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- mutex_lock(&icd->video_lock);
+ mutex_lock(&ici->host_lock);
icd->use_count--;
if (!icd->use_count) {
pm_runtime_suspend(&icd->vdev->dev);
if (ici->ops->init_videobuf2)
vb2_queue_release(&icd->vb2_vidq);
- mutex_lock(&ici->host_lock);
ici->ops->remove(icd);
- mutex_unlock(&ici->host_lock);
__soc_camera_power_off(icd);
}
if (icd->streamer == file)
icd->streamer = NULL;
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
module_put(ici->ops->owner);
if (icd->streamer != file)
return -EBUSY;
- if (mutex_lock_interruptible(&icd->video_lock))
+ if (mutex_lock_interruptible(&ici->host_lock))
return -ERESTARTSYS;
if (ici->ops->init_videobuf)
err = videobuf_mmap_mapper(&icd->vb_vidq, vma);
else
err = vb2_mmap(&icd->vb2_vidq, vma);
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
dev_dbg(icd->pdev, "vma start=0x%08lx, size=%ld, ret=%d\n",
(unsigned long)vma->vm_start,
if (icd->streamer != file)
return POLLERR;
- mutex_lock(&icd->video_lock);
+ mutex_lock(&ici->host_lock);
if (ici->ops->init_videobuf && list_empty(&icd->vb_vidq.stream))
dev_err(icd->pdev, "Trying to poll with no queued buffers!\n");
else
res = ici->ops->poll(file, pt);
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
return res;
}
void soc_camera_lock(struct vb2_queue *vq)
{
struct soc_camera_device *icd = vb2_get_drv_priv(vq);
- mutex_lock(&icd->video_lock);
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+ mutex_lock(&ici->host_lock);
}
EXPORT_SYMBOL(soc_camera_lock);
void soc_camera_unlock(struct vb2_queue *vq)
{
struct soc_camera_device *icd = vb2_get_drv_priv(vq);
- mutex_unlock(&icd->video_lock);
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+ mutex_unlock(&ici->host_lock);
}
EXPORT_SYMBOL(soc_camera_unlock);
* itself is protected against concurrent open() calls, but we also have
* to protect our data.
*/
- mutex_lock(&icd->video_lock);
+ mutex_lock(&ici->host_lock);
ret = soc_camera_video_start(icd);
if (ret < 0)
icd->field = mf.field;
}
- mutex_lock(&ici->host_lock);
ici->ops->remove(icd);
- mutex_unlock(&ici->host_lock);
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
return 0;
evidstart:
- mutex_unlock(&icd->video_lock);
+ mutex_unlock(&ici->host_lock);
soc_camera_free_user_formats(icd);
eiufmt:
ectrl:
icd->devnum = num;
icd->use_count = 0;
icd->host_priv = NULL;
- mutex_init(&icd->video_lock);
list_add_tail(&icd->list, &devices);
vdev->release = video_device_release;
vdev->tvnorms = V4L2_STD_UNKNOWN;
vdev->ctrl_handler = &icd->ctrl_handler;
- vdev->lock = &icd->video_lock;
+ vdev->lock = &ici->host_lock;
icd->vdev = vdev;
}
/*
- * Called from soc_camera_probe() above (with .video_lock held???)
+ * Called from soc_camera_probe() above with .host_lock held
*/
static int soc_camera_video_start(struct soc_camera_device *icd)
{
projects / linux-beck.git / commitdiff