[PATCH 10/18] media controller: use macros to check for V4L2 subdev entities

Mauro Carvalho Chehab
2015-05-08T01:12:56Z

Instead of relying on media subtype, use the new macros to detect
if an entity is a subdev or an A/V DMA entity.

Please note that most drivers assume that there's just AV_DMA or
V4L2 subdevs. This is not true anymore, as we've added MC support
for DVB, and there are plans to add support for ALSA and FB/DRM
too.

Ok, on the current pipelines supported by those drivers, just V4L
stuff are there, but, assuming that some day a pipeline that also
works with other subsystems will ever added, it is better to add
explicit checks for the AV_DMA stuff.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/platform/exynos4-is/common.c b/drivers/media/platform/exynos4-is/common.c
index 0eb34ecb8ee4..1f1b9a56e24e 100644
--- a/drivers/media/platform/exynos4-is/common.c
+++ b/drivers/media/platform/exynos4-is/common.c
@@ -22,8 +22,7 @@ struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity)
while (pad->flags & MEDIA_PAD_FL_SINK) {
/* source pad */
pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

sd = media_entity_to_v4l2_subdev(pad->entity);
diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c
index cfebf292e15a..545286813414 100644
--- a/drivers/media/platform/exynos4-is/fimc-capture.c
+++ b/drivers/media/platform/exynos4-is/fimc-capture.c
@@ -1141,8 +1141,7 @@ static int fimc_pipeline_validate(struct fimc_dev *fimc)
}
}

- if (src_pad == NULL ||
- media_entity_type(src_pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(src_pad->entity))
break;

/* Don't call FIMC subdev operation to avoid nested locking */
@@ -1397,7 +1396,7 @@ static int fimc_link_setup(struct media_entity *entity,
struct fimc_vid_cap *vc = &fimc->vid_cap;
struct v4l2_subdev *sensor;

- if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(remote->entity))
return -EINVAL;

if (WARN_ON(fimc == NULL))
diff --git a/drivers/media/platform/exynos4-is/fimc-isp-video.c b/drivers/media/platform/exynos4-is/fimc-isp-video.c
index 76b6b4d14616..014d0bad657d 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c
@@ -467,8 +467,7 @@ static int isp_video_pipeline_validate(struct fimc_isp *isp)

/* Retrieve format at the source pad */
pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

sd = media_entity_to_v4l2_subdev(pad->entity);
diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
index ca6261a86a5f..4fb53a28eaaa 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite.c
@@ -814,8 +814,7 @@ static int fimc_pipeline_validate(struct fimc_lite *fimc)
}
/* Retrieve format at the source pad */
pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

sd = media_entity_to_v4l2_subdev(pad->entity);
@@ -988,7 +987,6 @@ static int fimc_lite_link_setup(struct media_entity *entity,
{
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
- unsigned int remote_ent_type = media_entity_type(remote->entity);
int ret = 0;

if (WARN_ON(fimc == NULL))
@@ -1000,7 +998,7 @@ static int fimc_lite_link_setup(struct media_entity *entity,

switch (local->index) {
case FLITE_SD_PAD_SINK:
- if (remote_ent_type != MEDIA_ENT_T_V4L2_SUBDEV) {
+ if (!is_media_entity_v4l2_subdev(remote->entity)) {
ret = -EINVAL;
break;
}
@@ -1018,7 +1016,7 @@ static int fimc_lite_link_setup(struct media_entity *entity,
case FLITE_SD_PAD_SOURCE_DMA:
if (!(flags & MEDIA_LNK_FL_ENABLED))
atomic_set(&fimc->out_path, FIMC_IO_NONE);
- else if (remote_ent_type == MEDIA_ENT_T_DEVNODE)
+ else if (is_media_av_dma(remote->entity))
atomic_set(&fimc->out_path, FIMC_IO_DMA);
else
ret = -EINVAL;
@@ -1027,7 +1025,7 @@ static int fimc_lite_link_setup(struct media_entity *entity,
case FLITE_SD_PAD_SOURCE_ISP:
if (!(flags & MEDIA_LNK_FL_ENABLED))
atomic_set(&fimc->out_path, FIMC_IO_NONE);
- else if (remote_ent_type == MEDIA_ENT_T_V4L2_SUBDEV)
+ else if (is_media_entity_v4l2_subdev(remote->entity)))
atomic_set(&fimc->out_path, FIMC_IO_ISP);
else
ret = -EINVAL;
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index f315ef946cd4..e2eba223a544 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -88,8 +88,7 @@ static void fimc_pipeline_prepare(struct fimc_pipeline *p,
break;
}

- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;
sd = media_entity_to_v4l2_subdev(pad->entity);

@@ -1062,7 +1061,7 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
media_entity_graph_walk_start(&graph, entity);

while ((entity = media_entity_graph_walk_next(&graph))) {
- if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+ if (!is_media_entity_av_dma(entity))
continue;

ret = __fimc_md_modify_pipeline(entity, enable);
@@ -1076,7 +1075,7 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
media_entity_graph_walk_start(&graph, entity_err);

while ((entity_err = media_entity_graph_walk_next(&graph))) {
- if (media_entity_type(entity_err) != MEDIA_ENT_T_DEVNODE)
+ if (!is_media_entity_av_dma(entity_err))
continue;

__fimc_md_modify_pipeline(entity_err, !enable);
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 18d0a871747f..a194d575573b 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -693,7 +693,7 @@ static int isp_pipeline_pm_use_count(struct media_entity *entity)
media_entity_graph_walk_start(&graph, entity);

while ((entity = media_entity_graph_walk_next(&graph))) {
- if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+ if (is_media_entity_av_dma(entity))
use += entity->use_count;
}

@@ -716,7 +716,7 @@ static int isp_pipeline_pm_power_one(struct media_entity *entity, int change)
struct v4l2_subdev *subdev;
int ret;

- subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV
+ subdev = is_media_entity_v4l2_subdev(entity))
? media_entity_to_v4l2_subdev(entity) : NULL;

if (entity->use_count == 0 && change > 0 && subdev != NULL) {
@@ -756,7 +756,7 @@ static int isp_pipeline_pm_power(struct media_entity *entity, int change)
media_entity_graph_walk_start(&graph, entity);

while (!ret && (entity = media_entity_graph_walk_next(&graph)))
- if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+ if (is_media_entity_v4l2_subdev(entity))
ret = isp_pipeline_pm_power_one(entity, change);

if (!ret)
@@ -766,7 +766,7 @@ static int isp_pipeline_pm_power(struct media_entity *entity, int change)

while ((first = media_entity_graph_walk_next(&graph))
&& first != entity)
- if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE)
+ if (is_media_entity_v4l2_subdev(first))
isp_pipeline_pm_power_one(first, -change);

return ret;
@@ -899,8 +899,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
break;

pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

entity = pad->entity;
@@ -989,8 +988,7 @@ static int isp_pipeline_disable(struct isp_pipeline *pipe)
break;

pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

entity = pad->entity;
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index d285af18df7f..8ff034c42d9c 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -210,8 +210,7 @@ isp_video_remote_subdev(struct isp_video *video, u32 *pad)

remote = media_entity_remote_pad(&video->pad);

- if (remote == NULL ||
- media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(remote->entity))
return NULL;

if (pad)
@@ -243,7 +242,7 @@ static int isp_video_get_graph_data(struct isp_video *video,
if (entity == &video->video.entity)
continue;

- if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+ if (!is_media_entity_av_dma(entity))
continue;

__video = to_isp_video(media_entity_to_video_device(entity));
@@ -916,7 +915,7 @@ static int isp_video_check_external_subdevs(struct isp_video *video,
return -EINVAL;
}

- if (media_entity_type(source) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(source->entity))
return 0;

pipe->external = media_entity_to_v4l2_subdev(source);
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
index 76e6289a5612..cc11ab37862e 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -837,7 +837,7 @@ static int camif_pipeline_validate(struct camif_dev *camif)

/* Retrieve format at the sensor subdev source pad */
pad = media_entity_remote_pad(&camif->pads[0]);
- if (!pad || media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
return -EPIPE;

src_fmt.pad = pad->index;
diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c
index d91f19a9e1c1..172eaaaf46c8 100644
--- a/drivers/media/platform/vsp1/vsp1_video.c
+++ b/drivers/media/platform/vsp1/vsp1_video.c
@@ -160,8 +160,7 @@ vsp1_video_remote_subdev(struct media_pad *local, u32 *pad)
struct media_pad *remote;

remote = media_entity_remote_pad(local);
- if (remote == NULL ||
- media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(remote->entity))
return NULL;

if (pad)
@@ -326,7 +325,7 @@ static int vsp1_pipeline_validate_branch(struct vsp1_pipeline *pipe,
return -EPIPE;

/* We've reached a video node, that shouldn't have happened. */
- if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
return -EPIPE;

entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
@@ -423,7 +422,7 @@ static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
struct vsp1_rwpf *rwpf;
struct vsp1_entity *e;

- if (media_entity_type(entity) != MEDIA_ENT_T_V4L2_SUBDEV) {
+ if (is_media_entity_av_dma(entity)) {
pipe->num_video++;
continue;
}
@@ -680,7 +679,7 @@ void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
pad = media_entity_remote_pad(&input->pads[RWPF_PAD_SOURCE]);

while (pad) {
- if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c
index 7fa0cc0f08f0..00a440313cb4 100644
--- a/drivers/media/platform/xilinx/xilinx-dma.c
+++ b/drivers/media/platform/xilinx/xilinx-dma.c
@@ -49,8 +49,7 @@ xvip_dma_remote_subdev(struct media_pad *local, u32 *pad)
struct media_pad *remote;

remote = media_entity_remote_pad(local);
- if (remote == NULL ||
- media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(remote->entity))
return NULL;

if (pad)
@@ -113,8 +112,7 @@ static int xvip_pipeline_start_stop(struct xvip_pipeline *pipe, bool start)
break;

pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

entity = pad->entity;
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 9f8fc8330b3e..66c6d9fd2033 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -526,7 +526,7 @@ static int
v4l2_subdev_link_validate_get_format(struct media_pad *pad,
struct v4l2_subdev_format *fmt)
{
- if (media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV) {
+ if (is_media_entity_v4l2_subdev(pad->entity)) {
struct v4l2_subdev *sd =
media_entity_to_v4l2_subdev(pad->entity);

diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index 06d48d5eb0a0..429bec44d1a3 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -151,7 +151,7 @@ static void vpfe_prepare_pipeline(struct vpfe_video_device *video)
while ((entity = media_entity_graph_walk_next(&graph))) {
if (entity == &video->video_dev.entity)
continue;
- if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+ if ((!is_media_entity_av_dma(remote->entity))
continue;
far_end = to_vpfe_video(media_entity_to_video_device(entity));
if (far_end->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
@@ -296,7 +296,7 @@ static int vpfe_pipeline_enable(struct vpfe_pipeline *pipe)
media_entity_graph_walk_start(&graph, entity);
while ((entity = media_entity_graph_walk_next(&graph))) {

- if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+ if !is_media_entity_v4l2_subdev(entity))
continue;
subdev = media_entity_to_v4l2_subdev(entity);
ret = v4l2_subdev_call(subdev, video, s_stream, 1);
@@ -337,7 +337,7 @@ static int vpfe_pipeline_disable(struct vpfe_pipeline *pipe)

while ((entity = media_entity_graph_walk_next(&graph))) {

- if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+ if (!is_media_entity_v4l2_subdev(entity))
continue;
subdev = media_entity_to_v4l2_subdev(entity);
ret = v4l2_subdev_call(subdev, video, s_stream, 0);
diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index e0ad5e520e2d..a9632facfb66 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -396,7 +396,7 @@ static int iss_pipeline_pm_use_count(struct media_entity *entity)
media_entity_graph_walk_start(&graph, entity);

while ((entity = media_entity_graph_walk_next(&graph))) {
- if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+ if (is_media_entity_av_dma(entity))
use += entity->use_count;
}

@@ -418,7 +418,7 @@ static int iss_pipeline_pm_power_one(struct media_entity *entity, int change)
{
struct v4l2_subdev *subdev;

- subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV
+ subdev = is_media_entity_v4l2_subdev(entity))
? media_entity_to_v4l2_subdev(entity) : NULL;

if (entity->use_count == 0 && change > 0 && subdev != NULL) {
@@ -460,7 +460,7 @@ static int iss_pipeline_pm_power(struct media_entity *entity, int change)
media_entity_graph_walk_start(&graph, entity);

while (!ret && (entity = media_entity_graph_walk_next(&graph)))
- if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+ if (is_media_entity_v4l2_subdev(entity))
ret = iss_pipeline_pm_power_one(entity, change);

if (!ret)
@@ -470,7 +470,7 @@ static int iss_pipeline_pm_power(struct media_entity *entity, int change)

while ((first = media_entity_graph_walk_next(&graph))
&& first != entity)
- if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE)
+ if (is_media_entity_v4l2_subdev(first))
iss_pipeline_pm_power_one(first, -change);

return ret;
@@ -589,8 +589,7 @@ static int iss_pipeline_disable(struct iss_pipeline *pipe,
break;

pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if !is_media_entity_v4l2_subdev(pad->entity))
break;

entity = pad->entity;
@@ -657,8 +656,7 @@ static int iss_pipeline_enable(struct iss_pipeline *pipe,
break;

pad = media_entity_remote_pad(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if (!is_media_entity_v4l2_subdev(pad->entity))
break;

entity = pad->entity;
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c
index 85c54fedddda..019fcff7217c 100644
--- a/drivers/staging/media/omap4iss/iss_video.c
+++ b/drivers/staging/media/omap4iss/iss_video.c
@@ -191,8 +191,7 @@ iss_video_remote_subdev(struct iss_video *video, u32 *pad)

remote = media_entity_remote_pad(&video->pad);

- if (remote == NULL ||
- media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ if ((!is_media_entity_v4l2_subdev(remote->entity))
return NULL;

if (pad)
@@ -217,7 +216,7 @@ iss_video_far_end(struct iss_video *video)
if (entity == &video->video.entity)
continue;

- if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+ if (!is_media_entity_av_dma(entity))
continue;

far_end = to_iss_video(media_entity_to_video_device(entity));
--
2.1.0