EXPORT_SYMBOL_GPL(imx_media_add_video_device);
/*
- * Search upstream/downstream for a subdevice in the current pipeline
- * with given grp_id, starting from start_entity. Returns the subdev's
- * source/sink pad that it was reached from. If grp_id is zero, just
- * returns the nearest source/sink pad to start_entity. Must be called
- * with mdev->graph_mutex held.
+ * Search upstream/downstream for a subdevice or video device pad in the
+ * current pipeline, starting from start_entity. Returns the device's
+ * source/sink pad that it was reached from. Must be called with
+ * mdev->graph_mutex held.
+ *
+ * If grp_id != 0, finds a subdevice's pad of given grp_id.
+ * Else If buftype != 0, finds a video device's pad of given buffer type.
+ * Else, returns the nearest source/sink pad to start_entity.
*/
-static struct media_pad *
-find_pipeline_pad(struct imx_media_dev *imxmd,
- struct media_entity *start_entity,
- u32 grp_id, bool upstream)
+struct media_pad *
+imx_media_pipeline_pad(struct media_entity *start_entity, u32 grp_id,
+ enum v4l2_buf_type buftype, bool upstream)
{
struct media_entity *me = start_entity;
struct media_pad *pad = NULL;
+ struct video_device *vfd;
struct v4l2_subdev *sd;
int i;
continue;
pad = media_entity_remote_pad(spad);
- if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
+ if (!pad)
continue;
- if (grp_id != 0) {
- sd = media_entity_to_v4l2_subdev(pad->entity);
- if (sd->grp_id & grp_id)
- return pad;
+ if (grp_id) {
+ if (is_media_entity_v4l2_subdev(pad->entity)) {
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+ if (sd->grp_id & grp_id)
+ return pad;
+ }
+
+ return imx_media_pipeline_pad(pad->entity, grp_id,
+ buftype, upstream);
+ } else if (buftype) {
+ if (is_media_entity_v4l2_video_device(pad->entity)) {
+ vfd = media_entity_to_video_device(pad->entity);
+ if (buftype == vfd->queue->type)
+ return pad;
+ }
- return find_pipeline_pad(imxmd, pad->entity,
- grp_id, upstream);
+ return imx_media_pipeline_pad(pad->entity, grp_id,
+ buftype, upstream);
} else {
return pad;
}
return NULL;
}
+EXPORT_SYMBOL_GPL(imx_media_pipeline_pad);
/*
- * Search upstream for a subdev in the current pipeline with
- * given grp_id. Must be called with mdev->graph_mutex held.
+ * Search upstream/downstream for a subdev or video device in the current
+ * pipeline. Must be called with mdev->graph_mutex held.
*/
-static struct v4l2_subdev *
-find_upstream_subdev(struct imx_media_dev *imxmd,
- struct media_entity *start_entity,
- u32 grp_id)
+static struct media_entity *
+find_pipeline_entity(struct media_entity *start, u32 grp_id,
+ enum v4l2_buf_type buftype, bool upstream)
{
+ struct media_pad *pad = NULL;
+ struct video_device *vfd;
struct v4l2_subdev *sd;
- struct media_pad *pad;
- if (is_media_entity_v4l2_subdev(start_entity)) {
- sd = media_entity_to_v4l2_subdev(start_entity);
+ if (grp_id && is_media_entity_v4l2_subdev(start)) {
+ sd = media_entity_to_v4l2_subdev(start);
if (sd->grp_id & grp_id)
- return sd;
+ return &sd->entity;
+ } else if (buftype && is_media_entity_v4l2_video_device(start)) {
+ vfd = media_entity_to_video_device(pad->entity);
+ if (buftype == vfd->queue->type)
+ return &vfd->entity;
}
- pad = find_pipeline_pad(imxmd, start_entity, grp_id, true);
+ pad = imx_media_pipeline_pad(start, grp_id, buftype, upstream);
- return pad ? media_entity_to_v4l2_subdev(pad->entity) : NULL;
+ return pad ? pad->entity : NULL;
}
/*
* start entity in the current pipeline.
* Must be called with mdev->graph_mutex held.
*/
-int imx_media_find_mipi_csi2_channel(struct imx_media_dev *imxmd,
- struct media_entity *start_entity)
+int imx_media_pipeline_csi2_channel(struct media_entity *start_entity)
{
struct media_pad *pad;
int ret = -EPIPE;
- pad = find_pipeline_pad(imxmd, start_entity, IMX_MEDIA_GRP_ID_CSI2,
- true);
- if (pad) {
+ pad = imx_media_pipeline_pad(start_entity, IMX_MEDIA_GRP_ID_CSI2,
+ 0, true);
+ if (pad)
ret = pad->index - 1;
- dev_dbg(imxmd->md.dev, "found vc%d from %s\n",
- ret, start_entity->name);
- }
return ret;
}
-EXPORT_SYMBOL_GPL(imx_media_find_mipi_csi2_channel);
+EXPORT_SYMBOL_GPL(imx_media_pipeline_csi2_channel);
/*
- * Find a source pad reached upstream from the given start entity in
- * the current pipeline. Must be called with mdev->graph_mutex held.
+ * Find a subdev reached upstream from the given start entity in
+ * the current pipeline.
+ * Must be called with mdev->graph_mutex held.
*/
-struct media_pad *
-imx_media_find_upstream_pad(struct imx_media_dev *imxmd,
- struct media_entity *start_entity,
- u32 grp_id)
+struct v4l2_subdev *
+imx_media_pipeline_subdev(struct media_entity *start_entity, u32 grp_id,
+ bool upstream)
{
- struct media_pad *pad;
+ struct media_entity *me;
- pad = find_pipeline_pad(imxmd, start_entity, grp_id, true);
- if (!pad)
+ me = find_pipeline_entity(start_entity, grp_id, 0, upstream);
+ if (!me)
return ERR_PTR(-ENODEV);
- return pad;
+ return media_entity_to_v4l2_subdev(me);
}
-EXPORT_SYMBOL_GPL(imx_media_find_upstream_pad);
+EXPORT_SYMBOL_GPL(imx_media_pipeline_subdev);
/*
* Find a subdev reached upstream from the given start entity in
* the current pipeline.
* Must be called with mdev->graph_mutex held.
*/
-struct v4l2_subdev *
-imx_media_find_upstream_subdev(struct imx_media_dev *imxmd,
- struct media_entity *start_entity,
- u32 grp_id)
+struct video_device *
+imx_media_pipeline_video_device(struct media_entity *start_entity,
+ enum v4l2_buf_type buftype, bool upstream)
{
- struct v4l2_subdev *sd;
+ struct media_entity *me;
- sd = find_upstream_subdev(imxmd, start_entity, grp_id);
- if (!sd)
+ me = find_pipeline_entity(start_entity, 0, buftype, upstream);
+ if (!me)
return ERR_PTR(-ENODEV);
- return sd;
+ return media_entity_to_video_device(me);
}
-EXPORT_SYMBOL_GPL(imx_media_find_upstream_subdev);
+EXPORT_SYMBOL_GPL(imx_media_pipeline_video_device);
/*
* Turn current pipeline streaming on/off starting from entity.
const char *devname);
void imx_media_add_video_device(struct imx_media_dev *imxmd,
struct imx_media_video_dev *vdev);
-int imx_media_find_mipi_csi2_channel(struct imx_media_dev *imxmd,
- struct media_entity *start_entity);
+int imx_media_pipeline_csi2_channel(struct media_entity *start_entity);
struct media_pad *
-imx_media_find_upstream_pad(struct imx_media_dev *imxmd,
- struct media_entity *start_entity,
- u32 grp_id);
+imx_media_pipeline_pad(struct media_entity *start_entity, u32 grp_id,
+ enum v4l2_buf_type buftype, bool upstream);
struct v4l2_subdev *
-imx_media_find_upstream_subdev(struct imx_media_dev *imxmd,
- struct media_entity *start_entity,
- u32 grp_id);
+imx_media_pipeline_subdev(struct media_entity *start_entity, u32 grp_id,
+ bool upstream);
+struct video_device *
+imx_media_pipeline_video_device(struct media_entity *start_entity,
+ enum v4l2_buf_type buftype, bool upstream);
struct imx_media_dma_buf {
void *virt;
struct device_node *csi_np);
/* imx-media-vdic.c */
-struct v4l2_subdev *imx_media_vdic_register(struct imx_media_dev *imxmd,
+struct v4l2_subdev *imx_media_vdic_register(struct v4l2_device *v4l2_dev,
struct device *ipu_dev,
struct ipu_soc *ipu,
u32 grp_id);
int imx_media_vdic_unregister(struct v4l2_subdev *sd);
/* imx-ic-common.c */
-struct v4l2_subdev *imx_media_ic_register(struct imx_media_dev *imxmd,
+struct v4l2_subdev *imx_media_ic_register(struct v4l2_device *v4l2_dev,
struct device *ipu_dev,
struct ipu_soc *ipu,
u32 grp_id);
projects / platform / kernel / linux-rpi.git / commitdiff