diff options
author | Helen Fornazier <helen.koike@collabora.com> | 2017-06-19 14:00:13 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-23 09:03:37 -0300 |
commit | bf5fb95c261de259e912e49973c66347a0a5b3d3 (patch) | |
tree | aa82d288682f0c3b58ab9ae938e96c67ababb387 /drivers | |
parent | c149543ef46e3dcc80280a4cc9fbcd05294d3c58 (diff) |
[media] vimc: common: Add vimc_pipeline_s_stream helper
Move the vimc_cap_pipeline_s_stream from the vimc-cap.c to vimc-common.c
as this core will be reused by other subdevices to activate the stream
in their directly connected nodes
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/media/platform/vimc/vimc-capture.c | 29 | ||||
-rw-r--r-- | drivers/media/platform/vimc/vimc-common.c | 32 | ||||
-rw-r--r-- | drivers/media/platform/vimc/vimc-common.h | 11 |
3 files changed, 45 insertions, 27 deletions
diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c index 9adb06d7e13d..93f6a0916329 100644 --- a/drivers/media/platform/vimc/vimc-capture.c +++ b/drivers/media/platform/vimc/vimc-capture.c @@ -132,31 +132,6 @@ static void vimc_cap_return_all_buffers(struct vimc_cap_device *vcap, spin_unlock(&vcap->qlock); } -static int vimc_cap_pipeline_s_stream(struct vimc_cap_device *vcap, int enable) -{ - struct v4l2_subdev *sd; - struct media_pad *pad; - int ret; - - /* Start the stream in the subdevice direct connected */ - pad = media_entity_remote_pad(&vcap->vdev.entity.pads[0]); - - /* - * if it is a raw node from vimc-core, there is nothing to activate - * TODO: remove this when there are no more raw nodes in the - * core and return error instead - */ - if (pad->entity->obj_type == MEDIA_ENTITY_TYPE_BASE) - return 0; - - sd = media_entity_to_v4l2_subdev(pad->entity); - ret = v4l2_subdev_call(sd, video, s_stream, enable); - if (ret && ret != -ENOIOCTLCMD) - return ret; - - return 0; -} - static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count) { struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); @@ -173,7 +148,7 @@ static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count) } /* Enable streaming from the pipe */ - ret = vimc_cap_pipeline_s_stream(vcap, 1); + ret = vimc_pipeline_s_stream(&vcap->vdev.entity, 1); if (ret) { media_pipeline_stop(entity); vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED); @@ -192,7 +167,7 @@ static void vimc_cap_stop_streaming(struct vb2_queue *vq) struct vimc_cap_device *vcap = vb2_get_drv_priv(vq); /* Disable streaming from the pipe */ - vimc_cap_pipeline_s_stream(vcap, 0); + vimc_pipeline_s_stream(&vcap->vdev.entity, 0); /* Stop the media pipeline */ media_pipeline_stop(&vcap->vdev.entity); diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c index 3afbabd739a5..f809a9d756b9 100644 --- a/drivers/media/platform/vimc/vimc-common.c +++ b/drivers/media/platform/vimc/vimc-common.c @@ -220,6 +220,38 @@ struct media_pad *vimc_pads_init(u16 num_pads, const unsigned long *pads_flag) return pads; } +int vimc_pipeline_s_stream(struct media_entity *ent, int enable) +{ + struct v4l2_subdev *sd; + struct media_pad *pad; + unsigned int i; + int ret; + + for (i = 0; i < ent->num_pads; i++) { + if (ent->pads[i].flags & MEDIA_PAD_FL_SOURCE) + continue; + + /* Start the stream in the subdevice direct connected */ + pad = media_entity_remote_pad(&ent->pads[i]); + + /* + * if this is a raw node from vimc-core, then there is + * nothing to activate + * TODO: remove this when there are no more raw nodes in the + * core and return error instead + */ + if (pad->entity->obj_type == MEDIA_ENTITY_TYPE_BASE) + continue; + + sd = media_entity_to_v4l2_subdev(pad->entity); + ret = v4l2_subdev_call(sd, video, s_stream, enable); + if (ret && ret != -ENOIOCTLCMD) + return ret; + } + + return 0; +} + static const struct media_entity_operations vimc_ent_sd_mops = { .link_validate = v4l2_subdev_link_validate, }; diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h index 9ec361c8d7e4..73e7e9479956 100644 --- a/drivers/media/platform/vimc/vimc-common.h +++ b/drivers/media/platform/vimc/vimc-common.h @@ -97,6 +97,17 @@ static inline void vimc_pads_cleanup(struct media_pad *pads) } /** + * vimc_pipeline_s_stream - start stream through the pipeline + * + * @ent: the pointer to struct media_entity for the node + * @enable: 1 to start the stream and 0 to stop + * + * Helper function to call the s_stream of the subdevices connected + * in all the sink pads of the entity + */ +int vimc_pipeline_s_stream(struct media_entity *ent, int enable); + +/** * vimc_pix_map_by_code - get vimc_pix_map struct by media bus code * * @code: media bus format code defined by MEDIA_BUS_FMT_* macros |