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media: mc: convert pipeline funcs to take media_pad 

Now that the pipeline is stored into pads instead of entities, we can
change the relevant functions to take pads instead of entities.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Tomi Valkeinen 2022-08-31 16:13:39 +02:00 committed by Mauro Carvalho Chehab
parent 5b4f9a7275
commit 9e3576a1ae
7 changed files with 52 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
drivers/media/mc/mc-entity.c
View File

@ -700,29 +700,21 @@ done:
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 @@ error:
}
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);

6
drivers/media/platform/samsung/s3c-camif/camif-capture.c
View File

@ -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;
}

8
drivers/media/usb/au0828/au0828-core.c
View File

@ -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);

12
drivers/media/v4l2-core/v4l2-dev.c
View File

@ -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);

8
drivers/staging/media/imx/imx-media-utils.c
View File

@ -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:

34
include/media/media-entity.h
View File

@ -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

4
include/media/v4l2-dev.h
View File

@ -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