[media] v4l: vsp1: Make the userspace API optional

The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will
be controlled entirely by the rcar-du-drm driver through the KMS API. To
support that use case make the userspace V4L2 API optional.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Laurent Pinchart 2015-07-28 16:16:05 -03:00 committed by Mauro Carvalho Chehab
parent c618b185fd
commit f2ed459db7
5 changed files with 38 additions and 23 deletions

View File

@ -50,6 +50,7 @@ struct vsp1_platform_data {
unsigned int uds_count;
unsigned int wpf_count;
unsigned int num_bru_inputs;
bool uapi;
};
struct vsp1_device {

View File

@ -143,6 +143,9 @@ static int vsp1_create_links(struct vsp1_device *vsp1)
return ret;
}
if (!vsp1->pdata.uapi)
return 0;
for (i = 0; i < vsp1->pdata.rpf_count; ++i) {
struct vsp1_rwpf *rpf = vsp1->rpf[i];
@ -267,7 +270,6 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
}
for (i = 0; i < vsp1->pdata.rpf_count; ++i) {
struct vsp1_video *video;
struct vsp1_rwpf *rpf;
rpf = vsp1_rpf_create(vsp1, i);
@ -279,13 +281,16 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
vsp1->rpf[i] = rpf;
list_add_tail(&rpf->entity.list_dev, &vsp1->entities);
video = vsp1_video_create(vsp1, rpf);
if (IS_ERR(video)) {
ret = PTR_ERR(video);
goto done;
}
if (vsp1->pdata.uapi) {
struct vsp1_video *video = vsp1_video_create(vsp1, rpf);
list_add_tail(&video->list, &vsp1->videos);
if (IS_ERR(video)) {
ret = PTR_ERR(video);
goto done;
}
list_add_tail(&video->list, &vsp1->videos);
}
}
if (vsp1->pdata.features & VSP1_HAS_SRU) {
@ -312,7 +317,6 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
}
for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
struct vsp1_video *video;
struct vsp1_rwpf *wpf;
wpf = vsp1_wpf_create(vsp1, i);
@ -324,14 +328,17 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
vsp1->wpf[i] = wpf;
list_add_tail(&wpf->entity.list_dev, &vsp1->entities);
video = vsp1_video_create(vsp1, wpf);
if (IS_ERR(video)) {
ret = PTR_ERR(video);
goto done;
}
if (vsp1->pdata.uapi) {
struct vsp1_video *video = vsp1_video_create(vsp1, wpf);
list_add_tail(&video->list, &vsp1->videos);
wpf->entity.sink = &video->video.entity;
if (IS_ERR(video)) {
ret = PTR_ERR(video);
goto done;
}
list_add_tail(&video->list, &vsp1->videos);
wpf->entity.sink = &video->video.entity;
}
}
/* Register all subdevs. */
@ -347,9 +354,11 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
if (ret < 0)
goto done;
ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
if (ret < 0)
goto done;
if (vsp1->pdata.uapi) {
ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
if (ret < 0)
goto done;
}
ret = media_device_register(mdev);
@ -545,6 +554,7 @@ static int vsp1_parse_dt(struct vsp1_device *vsp1)
pdata->features |= VSP1_HAS_BRU;
pdata->num_bru_inputs = 4;
pdata->uapi = true;
return 0;
}

View File

@ -45,7 +45,7 @@ int vsp1_entity_set_streaming(struct vsp1_entity *entity, bool streaming)
if (!streaming)
return 0;
if (!entity->subdev.ctrl_handler)
if (!entity->vsp1->pdata.uapi || !entity->subdev.ctrl_handler)
return 0;
ret = v4l2_ctrl_handler_setup(entity->subdev.ctrl_handler);

View File

@ -151,11 +151,13 @@ static int sru_s_stream(struct v4l2_subdev *subdev, int enable)
/* Take the control handler lock to ensure that the CTRL0 value won't be
* changed behind our back by a set control operation.
*/
mutex_lock(sru->ctrls.lock);
if (sru->entity.vsp1->pdata.uapi)
mutex_lock(sru->ctrls.lock);
ctrl0 |= vsp1_sru_read(sru, VI6_SRU_CTRL0)
& (VI6_SRU_CTRL0_PARAM0_MASK | VI6_SRU_CTRL0_PARAM1_MASK);
vsp1_sru_write(sru, VI6_SRU_CTRL0, ctrl0);
mutex_unlock(sru->ctrls.lock);
if (sru->entity.vsp1->pdata.uapi)
mutex_unlock(sru->ctrls.lock);
vsp1_sru_write(sru, VI6_SRU_CTRL1, VI6_SRU_CTRL1_PARAM5);

View File

@ -151,10 +151,12 @@ static int wpf_s_stream(struct v4l2_subdev *subdev, int enable)
/* Take the control handler lock to ensure that the PDV value won't be
* changed behind our back by a set control operation.
*/
mutex_lock(wpf->ctrls.lock);
if (vsp1->pdata.uapi)
mutex_lock(wpf->ctrls.lock);
outfmt |= vsp1_wpf_read(wpf, VI6_WPF_OUTFMT) & VI6_WPF_OUTFMT_PDV_MASK;
vsp1_wpf_write(wpf, VI6_WPF_OUTFMT, outfmt);
mutex_unlock(wpf->ctrls.lock);
if (vsp1->pdata.uapi)
mutex_unlock(wpf->ctrls.lock);
vsp1_write(vsp1, VI6_DPR_WPF_FPORCH(wpf->entity.index),
VI6_DPR_WPF_FPORCH_FP_WPFN);