diff options
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_drm.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_drv.c | 4 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_entity.c | 124 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_entity.h | 8 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_pipe.c | 6 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_video.c | 18 |
6 files changed, 134 insertions, 28 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c index 1f88d8473b71..9d235e830f5a 100644 --- a/drivers/media/platform/vsp1/vsp1_drm.c +++ b/drivers/media/platform/vsp1/vsp1_drm.c @@ -496,7 +496,7 @@ void vsp1_du_atomic_flush(struct device *dev) } } - vsp1_entity_route_setup(entity, dl); + vsp1_entity_route_setup(entity, pipe, dl); if (entity->ops->configure) { entity->ops->configure(entity, pipe, dl, diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c index 8d1e61b353bb..83a6669a6328 100644 --- a/drivers/media/platform/vsp1/vsp1_drv.c +++ b/drivers/media/platform/vsp1/vsp1_drv.c @@ -105,7 +105,9 @@ static int vsp1_create_sink_links(struct vsp1_device *vsp1, if (source->type == sink->type) continue; - if (source->type == VSP1_ENTITY_LIF || + if (source->type == VSP1_ENTITY_HGO || + source->type == VSP1_ENTITY_HGT || + source->type == VSP1_ENTITY_LIF || source->type == VSP1_ENTITY_WPF) continue; diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c index 12eca5660d6e..88a2aae182ba 100644 --- a/drivers/media/platform/vsp1/vsp1_entity.c +++ b/drivers/media/platform/vsp1/vsp1_entity.c @@ -21,6 +21,8 @@ #include "vsp1.h" #include "vsp1_dl.h" #include "vsp1_entity.h" +#include "vsp1_pipe.h" +#include "vsp1_rwpf.h" static inline struct vsp1_entity * media_entity_to_vsp1_entity(struct media_entity *entity) @@ -28,11 +30,14 @@ media_entity_to_vsp1_entity(struct media_entity *entity) return container_of(entity, struct vsp1_entity, subdev.entity); } -void vsp1_entity_route_setup(struct vsp1_entity *source, +void vsp1_entity_route_setup(struct vsp1_entity *entity, + struct vsp1_pipeline *pipe, struct vsp1_dl_list *dl) { + struct vsp1_entity *source; struct vsp1_entity *sink; + source = entity; if (source->route->reg == 0) return; @@ -283,25 +288,32 @@ done: * Media Operations */ -int vsp1_entity_link_setup(struct media_entity *entity, - const struct media_pad *local, - const struct media_pad *remote, u32 flags) +static int vsp1_entity_link_setup_source(const struct media_pad *source_pad, + const struct media_pad *sink_pad, + u32 flags) { struct vsp1_entity *source; - if (!(local->flags & MEDIA_PAD_FL_SOURCE)) - return 0; - - source = media_entity_to_vsp1_entity(local->entity); + source = media_entity_to_vsp1_entity(source_pad->entity); if (!source->route) return 0; if (flags & MEDIA_LNK_FL_ENABLED) { - if (source->sink) - return -EBUSY; - source->sink = remote->entity; - source->sink_pad = remote->index; + struct vsp1_entity *sink + = media_entity_to_vsp1_entity(sink_pad->entity); + + /* + * Fan-out is limited to one for the normal data path plus + * optional HGO and HGT. We ignore the HGO and HGT here. + */ + if (sink->type != VSP1_ENTITY_HGO && + sink->type != VSP1_ENTITY_HGT) { + if (source->sink) + return -EBUSY; + source->sink = sink_pad->entity; + source->sink_pad = sink_pad->index; + } } else { source->sink = NULL; source->sink_pad = 0; @@ -310,6 +322,85 @@ int vsp1_entity_link_setup(struct media_entity *entity, return 0; } +static int vsp1_entity_link_setup_sink(const struct media_pad *source_pad, + const struct media_pad *sink_pad, + u32 flags) +{ + struct vsp1_entity *sink; + + sink = media_entity_to_vsp1_entity(sink_pad->entity); + + if (flags & MEDIA_LNK_FL_ENABLED) { + /* Fan-in is limited to one. */ + if (sink->sources[sink_pad->index]) + return -EBUSY; + + sink->sources[sink_pad->index] = source_pad->entity; + } else { + sink->sources[sink_pad->index] = NULL; + } + + return 0; +} + +int vsp1_entity_link_setup(struct media_entity *entity, + const struct media_pad *local, + const struct media_pad *remote, u32 flags) +{ + if (local->flags & MEDIA_PAD_FL_SOURCE) + return vsp1_entity_link_setup_source(local, remote, flags); + else + return vsp1_entity_link_setup_sink(remote, local, flags); +} + +/** + * vsp1_entity_remote_pad - Find the pad at the remote end of a link + * @pad: Pad at the local end of the link + * + * Search for a remote pad connected to the given pad by iterating over all + * links originating or terminating at that pad until an enabled link is found. + * + * Our link setup implementation guarantees that the output fan-out will not be + * higher than one for the data pipelines, except for the links to the HGO and + * HGT that can be enabled in addition to a regular data link. When traversing + * outgoing links this function ignores HGO and HGT entities and should thus be + * used in place of the generic media_entity_remote_pad() function to traverse + * data pipelines. + * + * Return a pointer to the pad at the remote end of the first found enabled + * link, or NULL if no enabled link has been found. + */ +struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad) +{ + struct media_link *link; + + list_for_each_entry(link, &pad->entity->links, list) { + struct vsp1_entity *entity; + + if (!(link->flags & MEDIA_LNK_FL_ENABLED)) + continue; + + /* If we're the sink the source will never be an HGO or HGT. */ + if (link->sink == pad) + return link->source; + + if (link->source != pad) + continue; + + /* If the sink isn't a subdevice it can't be an HGO or HGT. */ + if (!is_media_entity_v4l2_subdev(link->sink->entity)) + return link->sink; + + entity = media_entity_to_vsp1_entity(link->sink->entity); + if (entity->type != VSP1_ENTITY_HGO && + entity->type != VSP1_ENTITY_HGT) + return link->sink; + } + + return NULL; + +} + /* ----------------------------------------------------------------------------- * Initialization */ @@ -388,7 +479,14 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity, for (i = 0; i < num_pads - 1; ++i) entity->pads[i].flags = MEDIA_PAD_FL_SINK; - entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE; + entity->sources = devm_kcalloc(vsp1->dev, max(num_pads - 1, 1U), + sizeof(*entity->sources), GFP_KERNEL); + if (entity->sources == NULL) + return -ENOMEM; + + /* Single-pad entities only have a sink. */ + entity->pads[num_pads - 1].flags = num_pads > 1 ? MEDIA_PAD_FL_SOURCE + : MEDIA_PAD_FL_SINK; /* Initialize the media entity. */ ret = media_entity_pads_init(&entity->subdev.entity, num_pads, diff --git a/drivers/media/platform/vsp1/vsp1_entity.h b/drivers/media/platform/vsp1/vsp1_entity.h index 901146f807b9..c169a060b6d2 100644 --- a/drivers/media/platform/vsp1/vsp1_entity.h +++ b/drivers/media/platform/vsp1/vsp1_entity.h @@ -25,6 +25,8 @@ struct vsp1_pipeline; enum vsp1_entity_type { VSP1_ENTITY_BRU, VSP1_ENTITY_CLU, + VSP1_ENTITY_HGO, + VSP1_ENTITY_HGT, VSP1_ENTITY_HSI, VSP1_ENTITY_HST, VSP1_ENTITY_LIF, @@ -102,6 +104,7 @@ struct vsp1_entity { struct media_pad *pads; unsigned int source_pad; + struct media_entity **sources; struct media_entity *sink; unsigned int sink_pad; @@ -142,9 +145,12 @@ vsp1_entity_get_pad_selection(struct vsp1_entity *entity, int vsp1_entity_init_cfg(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg); -void vsp1_entity_route_setup(struct vsp1_entity *source, +void vsp1_entity_route_setup(struct vsp1_entity *entity, + struct vsp1_pipeline *pipe, struct vsp1_dl_list *dl); +struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad); + int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt); diff --git a/drivers/media/platform/vsp1/vsp1_pipe.c b/drivers/media/platform/vsp1/vsp1_pipe.c index 35364f594e19..b5a765cbfc86 100644 --- a/drivers/media/platform/vsp1/vsp1_pipe.c +++ b/drivers/media/platform/vsp1/vsp1_pipe.c @@ -252,6 +252,7 @@ bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe) int vsp1_pipeline_stop(struct vsp1_pipeline *pipe) { + struct vsp1_device *vsp1 = pipe->output->entity.vsp1; struct vsp1_entity *entity; unsigned long flags; int ret; @@ -261,8 +262,7 @@ int vsp1_pipeline_stop(struct vsp1_pipeline *pipe) * When using display lists in continuous frame mode the only * way to stop the pipeline is to reset the hardware. */ - ret = vsp1_reset_wpf(pipe->output->entity.vsp1, - pipe->output->entity.index); + ret = vsp1_reset_wpf(vsp1, pipe->output->entity.index); if (ret == 0) { spin_lock_irqsave(&pipe->irqlock, flags); pipe->state = VSP1_PIPELINE_STOPPED; @@ -282,7 +282,7 @@ int vsp1_pipeline_stop(struct vsp1_pipeline *pipe) list_for_each_entry(entity, &pipe->entities, list_pipe) { if (entity->route && entity->route->reg) - vsp1_write(entity->vsp1, entity->route->reg, + vsp1_write(vsp1, entity->route->reg, VI6_DPR_NODE_UNUSED); } diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c index 795a3ca9ca03..86c33994468b 100644 --- a/drivers/media/platform/vsp1/vsp1_video.c +++ b/drivers/media/platform/vsp1/vsp1_video.c @@ -486,7 +486,12 @@ static int vsp1_video_pipeline_build_branch(struct vsp1_pipeline *pipe, if (ret < 0) return ret; - pad = media_entity_remote_pad(&input->entity.pads[RWPF_PAD_SOURCE]); + /* + * The main data path doesn't include the HGO or HGT, use + * vsp1_entity_remote_pad() to traverse the graph. + */ + + pad = vsp1_entity_remote_pad(&input->entity.pads[RWPF_PAD_SOURCE]); while (1) { if (pad == NULL) { @@ -539,14 +544,9 @@ static int vsp1_video_pipeline_build_branch(struct vsp1_pipeline *pipe, : &input->entity; } - /* - * Follow the source link. The link setup operations ensure - * that the output fan-out can't be more than one, there is thus - * no need to verify here that only a single source link is - * activated. - */ + /* Follow the source link, ignoring any HGO or HGT. */ pad = &entity->pads[entity->source_pad]; - pad = media_entity_remote_pad(pad); + pad = vsp1_entity_remote_pad(pad); } /* The last entity must be the output WPF. */ @@ -800,7 +800,7 @@ static int vsp1_video_setup_pipeline(struct vsp1_pipeline *pipe) } list_for_each_entry(entity, &pipe->entities, list_pipe) { - vsp1_entity_route_setup(entity, pipe->dl); + vsp1_entity_route_setup(entity, pipe, pipe->dl); if (entity->ops->configure) entity->ops->configure(entity, pipe, pipe->dl, |