@@ -700,29 +700,21 @@ static int media_pipeline_populate(struct media_pipeline *pipe,
return ret;
}
-__must_check int __media_pipeline_start(struct media_entity *entity,
+__must_check int __media_pipeline_start(struct media_pad *pad,
struct media_pipeline *pipe)
{
- struct media_device *mdev = entity->graph_obj.mdev;
+ struct media_device *mdev = pad->entity->graph_obj.mdev;
struct media_pipeline_pad *err_ppad;
struct media_pipeline_pad *ppad;
int ret;
lockdep_assert_held(&mdev->graph_mutex);
- /*
- * media_pipeline_start(entity) only makes sense with entities that have
- * a single pad.
- */
-
- if (WARN_ON(entity->num_pads != 1))
- return -EINVAL;
-
/*
* If the entity is already part of a pipeline, that pipeline must
* be the same as the pipe given to media_pipeline_start().
*/
- if (WARN_ON(entity->pads->pipe && entity->pads->pipe != pipe))
+ if (WARN_ON(pad->pipe && pad->pipe != pipe))
return -EINVAL;
/*
@@ -739,7 +731,7 @@ __must_check int __media_pipeline_start(struct media_entity *entity,
* with media_pipeline_pad instances for each pad found during graph
* walk.
*/
- ret = media_pipeline_populate(pipe, entity->pads);
+ ret = media_pipeline_populate(pipe, pad);
if (ret)
return ret;
@@ -856,22 +848,22 @@ __must_check int __media_pipeline_start(struct media_entity *entity,
}
EXPORT_SYMBOL_GPL(__media_pipeline_start);
-__must_check int media_pipeline_start(struct media_entity *entity,
+__must_check int media_pipeline_start(struct media_pad *pad,
struct media_pipeline *pipe)
{
- struct media_device *mdev = entity->graph_obj.mdev;
+ struct media_device *mdev = pad->entity->graph_obj.mdev;
int ret;
mutex_lock(&mdev->graph_mutex);
- ret = __media_pipeline_start(entity, pipe);
+ ret = __media_pipeline_start(pad, pipe);
mutex_unlock(&mdev->graph_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(media_pipeline_start);
-void __media_pipeline_stop(struct media_entity *entity)
+void __media_pipeline_stop(struct media_pad *pad)
{
- struct media_pipeline *pipe = entity->pads->pipe;
+ struct media_pipeline *pipe = pad->pipe;
struct media_pipeline_pad *ppad;
/*
@@ -894,19 +886,19 @@ void __media_pipeline_stop(struct media_entity *entity)
}
EXPORT_SYMBOL_GPL(__media_pipeline_stop);
-void media_pipeline_stop(struct media_entity *entity)
+void media_pipeline_stop(struct media_pad *pad)
{
- struct media_device *mdev = entity->graph_obj.mdev;
+ struct media_device *mdev = pad->entity->graph_obj.mdev;
mutex_lock(&mdev->graph_mutex);
- __media_pipeline_stop(entity);
+ __media_pipeline_stop(pad);
mutex_unlock(&mdev->graph_mutex);
}
EXPORT_SYMBOL_GPL(media_pipeline_stop);
-__must_check int media_pipeline_alloc_start(struct media_entity *entity)
+__must_check int media_pipeline_alloc_start(struct media_pad *pad)
{
- struct media_device *mdev = entity->graph_obj.mdev;
+ struct media_device *mdev = pad->entity->graph_obj.mdev;
struct media_pipeline *new_pipe = NULL;
struct media_pipeline *pipe;
int ret;
@@ -917,7 +909,7 @@ __must_check int media_pipeline_alloc_start(struct media_entity *entity)
* Is the entity already part of a pipeline? If not, we need to allocate
* a pipe.
*/
- pipe = media_entity_pipeline(entity);
+ pipe = media_pad_pipeline(pad);
if (!pipe) {
new_pipe = kzalloc(sizeof(*new_pipe), GFP_KERNEL);
if (!new_pipe) {
@@ -929,7 +921,7 @@ __must_check int media_pipeline_alloc_start(struct media_entity *entity)
pipe->allocated = true;
}
- ret = __media_pipeline_start(entity, pipe);
+ ret = __media_pipeline_start(pad, pipe);
if (ret)
kfree(new_pipe);
@@ -848,13 +848,13 @@ static int s3c_camif_streamon(struct file *file, void *priv,
if (s3c_vp_active(vp))
return 0;
- ret = media_pipeline_start(sensor, camif->m_pipeline);
+ ret = media_pipeline_start(sensor->pads, camif->m_pipeline);
if (ret < 0)
return ret;
ret = camif_pipeline_validate(camif);
if (ret < 0) {
- media_pipeline_stop(sensor);
+ media_pipeline_stop(sensor->pads);
return ret;
}
@@ -878,7 +878,7 @@ static int s3c_camif_streamoff(struct file *file, void *priv,
ret = vb2_streamoff(&vp->vb_queue, type);
if (ret == 0)
- media_pipeline_stop(&camif->sensor.sd->entity);
+ media_pipeline_stop(camif->sensor.sd->entity.pads);
return ret;
}
@@ -410,7 +410,7 @@ static int au0828_enable_source(struct media_entity *entity,
goto end;
}
- ret = __media_pipeline_start(entity, pipe);
+ ret = __media_pipeline_start(entity->pads, pipe);
if (ret) {
pr_err("Start Pipeline: %s->%s Error %d\n",
source->name, entity->name, ret);
@@ -501,12 +501,12 @@ static void au0828_disable_source(struct media_entity *entity)
return;
/* stop pipeline */
- __media_pipeline_stop(dev->active_link_owner);
+ __media_pipeline_stop(dev->active_link_owner->pads);
pr_debug("Pipeline stop for %s\n",
dev->active_link_owner->name);
ret = __media_pipeline_start(
- dev->active_link_user,
+ dev->active_link_user->pads,
dev->active_link_user_pipe);
if (ret) {
pr_err("Start Pipeline: %s->%s %d\n",
@@ -532,7 +532,7 @@ static void au0828_disable_source(struct media_entity *entity)
return;
/* stop pipeline */
- __media_pipeline_stop(dev->active_link_owner);
+ __media_pipeline_stop(dev->active_link_owner->pads);
pr_debug("Pipeline stop for %s\n",
dev->active_link_owner->name);
@@ -1105,7 +1105,7 @@ __must_check int video_device_pipeline_start(struct video_device *vdev,
if (entity->num_pads != 1)
return -ENODEV;
- return media_pipeline_start(entity, pipe);
+ return media_pipeline_start(&entity->pads[0], pipe);
}
EXPORT_SYMBOL_GPL(video_device_pipeline_start);
@@ -1117,7 +1117,7 @@ __must_check int __video_device_pipeline_start(struct video_device *vdev,
if (entity->num_pads != 1)
return -ENODEV;
- return __media_pipeline_start(entity, pipe);
+ return __media_pipeline_start(&entity->pads[0], pipe);
}
EXPORT_SYMBOL_GPL(__video_device_pipeline_start);
@@ -1128,7 +1128,7 @@ void video_device_pipeline_stop(struct video_device *vdev)
if (WARN_ON(entity->num_pads != 1))
return;
- return media_pipeline_stop(entity);
+ return media_pipeline_stop(&entity->pads[0]);
}
EXPORT_SYMBOL_GPL(video_device_pipeline_stop);
@@ -1139,7 +1139,7 @@ void __video_device_pipeline_stop(struct video_device *vdev)
if (WARN_ON(entity->num_pads != 1))
return;
- return __media_pipeline_stop(entity);
+ return __media_pipeline_stop(&entity->pads[0]);
}
EXPORT_SYMBOL_GPL(__video_device_pipeline_stop);
@@ -1150,7 +1150,7 @@ __must_check int video_device_pipeline_alloc_start(struct video_device *vdev)
if (entity->num_pads != 1)
return -ENODEV;
- return media_pipeline_alloc_start(entity);
+ return media_pipeline_alloc_start(&entity->pads[0]);
}
EXPORT_SYMBOL_GPL(video_device_pipeline_alloc_start);
@@ -1161,7 +1161,7 @@ struct media_pipeline *video_device_pipeline(struct video_device *vdev)
if (WARN_ON(entity->num_pads != 1))
return NULL;
- return media_entity_pipeline(entity);
+ return media_pad_pipeline(&entity->pads[0]);
}
EXPORT_SYMBOL_GPL(video_device_pipeline);
@@ -863,16 +863,16 @@ int imx_media_pipeline_set_stream(struct imx_media_dev *imxmd,
mutex_lock(&imxmd->md.graph_mutex);
if (on) {
- ret = __media_pipeline_start(entity, &imxmd->pipe);
+ ret = __media_pipeline_start(entity->pads, &imxmd->pipe);
if (ret)
goto out;
ret = v4l2_subdev_call(sd, video, s_stream, 1);
if (ret)
- __media_pipeline_stop(entity);
+ __media_pipeline_stop(entity->pads);
} else {
v4l2_subdev_call(sd, video, s_stream, 0);
- if (media_entity_pipeline(entity))
- __media_pipeline_stop(entity);
+ if (media_pad_pipeline(entity->pads))
+ __media_pipeline_stop(entity->pads);
}
out:
@@ -1115,66 +1115,66 @@ struct media_entity *media_graph_walk_next(struct media_graph *graph);
/**
* media_pipeline_start - Mark a pipeline as streaming
- * @entity: Starting entity
- * @pipe: Media pipeline to be assigned to all entities in the pipeline.
+ * @pad: Starting pad
+ * @pipe: Media pipeline to be assigned to all pads in the pipeline.
*
- * Mark all entities connected to a given entity through enabled links, either
+ * Mark all pads connected to a given pad through enabled links, either
* directly or indirectly, as streaming. The given pipeline object is assigned
- * to every entity in the pipeline and stored in the media_entity pipe field.
+ * to every pad in the pipeline and stored in the media_pad pipe field.
*
* Calls to this function can be nested, in which case the same number of
* media_pipeline_stop() calls will be required to stop streaming. The
* pipeline pointer must be identical for all nested calls to
* media_pipeline_start().
*/
-__must_check int media_pipeline_start(struct media_entity *entity,
+__must_check int media_pipeline_start(struct media_pad *pad,
struct media_pipeline *pipe);
/**
* __media_pipeline_start - Mark a pipeline as streaming
*
- * @entity: Starting entity
- * @pipe: Media pipeline to be assigned to all entities in the pipeline.
+ * @pad: Starting pad
+ * @pipe: Media pipeline to be assigned to all pads in the pipeline.
*
* ..note:: This is the non-locking version of media_pipeline_start()
*/
-__must_check int __media_pipeline_start(struct media_entity *entity,
+__must_check int __media_pipeline_start(struct media_pad *pad,
struct media_pipeline *pipe);
/**
* media_pipeline_stop - Mark a pipeline as not streaming
- * @entity: Starting entity
+ * @pad: Starting pad
*
- * Mark all entities connected to a given entity through enabled links, either
- * directly or indirectly, as not streaming. The media_entity pipe field is
+ * Mark all pads connected to a given pads through enabled links, either
+ * directly or indirectly, as not streaming. The media_pad pipe field is
* reset to %NULL.
*
* If multiple calls to media_pipeline_start() have been made, the same
* number of calls to this function are required to mark the pipeline as not
* streaming.
*/
-void media_pipeline_stop(struct media_entity *entity);
+void media_pipeline_stop(struct media_pad *pad);
/**
* __media_pipeline_stop - Mark a pipeline as not streaming
*
- * @entity: Starting entity
+ * @pad: Starting pad
*
* .. note:: This is the non-locking version of media_pipeline_stop()
*/
-void __media_pipeline_stop(struct media_entity *entity);
+void __media_pipeline_stop(struct media_pad *pad);
/**
* media_pipeline_alloc_start - Mark a pipeline as streaming
- * @entity: Starting entity
+ * @pad: Starting pad
*
* media_pipeline_alloc_start() is similar to media_pipeline_start() but instead
* of working on a given pipeline the function will use an existing pipeline if
- * the entity is already part of a pipeline, or allocate a new pipeline.
+ * the pad is already part of a pipeline, or allocate a new pipeline.
*
* Calls to media_pipeline_alloc_start() must be matched with
* media_pipeline_stop().
*/
-__must_check int media_pipeline_alloc_start(struct media_entity *entity);
+__must_check int media_pipeline_alloc_start(struct media_pad *pad);
/**
* media_devnode_create() - creates and initializes a device node interface
@@ -548,7 +548,7 @@ static inline int video_is_registered(struct video_device *vdev)
*
* Mark all entities connected to a given video device through enabled links,
* either directly or indirectly, as streaming. The given pipeline object is
- * assigned to every entity in the pipeline and stored in the media_entity pipe
+ * assigned to every pad in the pipeline and stored in the media_pad pipe
* field.
*
* Calls to this function can be nested, in which case the same number of
@@ -582,7 +582,7 @@ __must_check int __video_device_pipeline_start(struct video_device *vdev,
* @vdev: Starting video device
*
* Mark all entities connected to a given video device through enabled links,
- * either directly or indirectly, as not streaming. The media_entity pipe field
+ * either directly or indirectly, as not streaming. The media_pad pipe field
* is reset to %NULL.
*
* If multiple calls to media_pipeline_start() have been made, the same