From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
To: linux-media@vger.kernel.org, laurent.pinchart@ideasonboard.com
Cc: dafna.hirschfeld@collabora.com, helen.koike@collabora.com,
ezequiel@collabora.com, hverkuil@xs4all.nl, kernel@collabora.com,
dafna3@gmail.com, sakari.ailus@linux.intel.com,
linux-rockchip@lists.infradead.org, mchehab@kernel.org,
tfiga@chromium.org, skhan@linuxfoundation.org,
niklas.soderlund@ragnatech.se--annotate
Subject: [PATCH v4 5/5] media: vimc: use v4l2_pipeline_stream_{enable,disable} helpers
Date: Fri, 22 May 2020 09:55:22 +0200 [thread overview]
Message-ID: <20200522075522.6190-6-dafna.hirschfeld@collabora.com> (raw)
In-Reply-To: <20200522075522.6190-1-dafna.hirschfeld@collabora.com>
From: Helen Koike <helen.koike@collabora.com>
Use v4l2_pipeline_stream_{enable,disable} to call .s_stream() subdevice
callbacks through the pipeline.
Tested streaming works with:
media-ctl -d /dev/media0 -V '"Sensor A":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d /dev/media0 -V '"Debayer A":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d /dev/media0 -V '"Sensor B":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d /dev/media0 -V '"Debayer B":0[fmt:SBGGR8_1X8/640x480]'
media-ctl -d /dev/media0 -V '"Scaler":0[fmt:RGB888_1X24/640x480]'
media-ctl -d /dev/media0 -V '"Scaler":0[crop:(100,50)/400x150]'
media-ctl -d /dev/media0 -V '"Scaler":1[fmt:RGB888_1X24/1920x1440]'
v4l2-ctl -d /dev/video2 -v width=1200,height=450
v4l2-ctl -d /dev/video0 -v pixelformat=BA81
v4l2-ctl -d /dev/video1 -v pixelformat=BA81
v4l2-ctl --stream-mmap --stream-count=10 -d /dev/video2 --stream-to=/tmp/test.raw
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
---
.../media/test-drivers/vimc/vimc-capture.c | 31 ++++++++----
.../media/test-drivers/vimc/vimc-streamer.c | 49 ++-----------------
2 files changed, 26 insertions(+), 54 deletions(-)
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
index c63496b17b9a..36ba664db092 100644
--- a/drivers/media/test-drivers/vimc/vimc-capture.c
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -245,21 +245,27 @@ static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
vcap->sequence = 0;
- /* Start the media pipeline */
ret = media_pipeline_start(entity, &vcap->stream.pipe);
- if (ret) {
- vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
- return ret;
- }
+ if (ret)
+ goto err_return_all_buffers;
+
+ ret = v4l2_pipeline_stream_enable(&vcap->vdev);
+ if (ret)
+ goto err_stop_media_pipe;
ret = vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 1);
- if (ret) {
- media_pipeline_stop(entity);
- vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
- return ret;
- }
+ if (ret)
+ goto err_stop_stream;
return 0;
+
+err_stop_stream:
+ v4l2_pipeline_stream_disable(&vcap->vdev);
+err_stop_media_pipe:
+ media_pipeline_stop(entity);
+err_return_all_buffers:
+ vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
+ return ret;
}
/*
@@ -269,9 +275,14 @@ static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
static void vimc_cap_stop_streaming(struct vb2_queue *vq)
{
struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
+ int ret;
vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 0);
+ ret = v4l2_pipeline_stream_disable(&vcap->vdev);
+ if (ret)
+ dev_err(vcap->ved.dev, "stream disable failed: %d\n", ret);
+
/* Stop the media pipeline */
media_pipeline_stop(&vcap->vdev.entity);
diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.c b/drivers/media/test-drivers/vimc/vimc-streamer.c
index 65feb3c596db..c0085f4695c2 100644
--- a/drivers/media/test-drivers/vimc/vimc-streamer.c
+++ b/drivers/media/test-drivers/vimc/vimc-streamer.c
@@ -36,33 +36,6 @@ static struct media_entity *vimc_get_source_entity(struct media_entity *ent)
return NULL;
}
-/**
- * vimc_streamer_pipeline_terminate - Disable stream in all ved in stream
- *
- * @stream: the pointer to the stream structure with the pipeline to be
- * disabled.
- *
- * Calls s_stream to disable the stream in each entity of the pipeline
- *
- */
-static void vimc_streamer_pipeline_terminate(struct vimc_stream *stream)
-{
- struct vimc_ent_device *ved;
- struct v4l2_subdev *sd;
-
- while (stream->pipe_size) {
- stream->pipe_size--;
- ved = stream->ved_pipeline[stream->pipe_size];
- stream->ved_pipeline[stream->pipe_size] = NULL;
-
- if (!is_media_entity_v4l2_subdev(ved->ent))
- continue;
-
- sd = media_entity_to_v4l2_subdev(ved->ent);
- v4l2_subdev_call(sd, video, s_stream, 0);
- }
-}
-
/**
* vimc_streamer_pipeline_init - Initializes the stream structure
*
@@ -82,27 +55,15 @@ static int vimc_streamer_pipeline_init(struct vimc_stream *stream,
struct media_entity *entity;
struct video_device *vdev;
struct v4l2_subdev *sd;
- int ret = 0;
stream->pipe_size = 0;
while (stream->pipe_size < VIMC_STREAMER_PIPELINE_MAX_SIZE) {
if (!ved) {
- vimc_streamer_pipeline_terminate(stream);
+ stream->pipe_size = 0;
return -EINVAL;
}
stream->ved_pipeline[stream->pipe_size++] = ved;
- if (is_media_entity_v4l2_subdev(ved->ent)) {
- sd = media_entity_to_v4l2_subdev(ved->ent);
- ret = v4l2_subdev_call(sd, video, s_stream, 1);
- if (ret && ret != -ENOIOCTLCMD) {
- dev_err(ved->dev, "subdev_call error %s\n",
- ved->ent->name);
- vimc_streamer_pipeline_terminate(stream);
- return ret;
- }
- }
-
entity = vimc_get_source_entity(ved->ent);
/* Check if the end of the pipeline was reached */
if (!entity) {
@@ -111,7 +72,7 @@ static int vimc_streamer_pipeline_init(struct vimc_stream *stream,
dev_err(ved->dev,
"first entity in the pipe '%s' is not a source\n",
ved->ent->name);
- vimc_streamer_pipeline_terminate(stream);
+ stream->pipe_size = 0;
return -EPIPE;
}
return 0;
@@ -129,7 +90,7 @@ static int vimc_streamer_pipeline_init(struct vimc_stream *stream,
}
}
- vimc_streamer_pipeline_terminate(stream);
+ stream->pipe_size = 0;
return -EINVAL;
}
@@ -210,7 +171,7 @@ int vimc_streamer_s_stream(struct vimc_stream *stream,
if (IS_ERR(stream->kthread)) {
ret = PTR_ERR(stream->kthread);
dev_err(ved->dev, "kthread_run failed with %d\n", ret);
- vimc_streamer_pipeline_terminate(stream);
+ stream->pipe_size = 0;
stream->kthread = NULL;
return ret;
}
@@ -231,7 +192,7 @@ int vimc_streamer_s_stream(struct vimc_stream *stream,
stream->kthread = NULL;
- vimc_streamer_pipeline_terminate(stream);
+ stream->pipe_size = 0;
}
return 0;
--
2.17.1
next prev parent reply other threads:[~2020-05-22 7:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 7:55 [PATCH v4 0/5] media: add v4l2_pipeline_stream_{enable,disable} Dafna Hirschfeld
2020-05-22 7:55 ` [PATCH v4 1/5] media: mc-entity.c: add media_graph_walk_next_stream() Dafna Hirschfeld
2020-05-22 7:55 ` [PATCH v4 2/5] media: v4l2-common: add helper functions to call s_stream() callbacks Dafna Hirschfeld
2020-05-25 9:23 ` Sakari Ailus
2020-05-25 9:42 ` Dafna Hirschfeld
2020-05-25 10:03 ` Sakari Ailus
2020-05-25 10:45 ` Dafna Hirschfeld
2020-06-22 9:20 ` Sakari Ailus
2020-06-22 9:00 ` Hans Verkuil
2020-06-22 14:07 ` Dafna Hirschfeld
2020-05-22 7:55 ` [PATCH v4 3/5] media: staging: rkisp1: validate links before powering and streaming Dafna Hirschfeld
2020-06-10 17:00 ` Tomasz Figa
2020-05-22 7:55 ` [PATCH v4 4/5] media: staging: rkisp1: cap: use v4l2_pipeline_stream_{enable,disable} helpers Dafna Hirschfeld
2020-06-10 17:03 ` Tomasz Figa
2020-06-10 17:22 ` Dafna Hirschfeld
2020-06-10 17:28 ` Tomasz Figa
2020-05-22 7:55 ` Dafna Hirschfeld [this message]
2020-05-22 9:06 ` [PATCH v4 0/5] media: add v4l2_pipeline_stream_{enable,disable} Helen Koike
2020-05-26 16:11 ` Tomasz Figa
2020-05-26 18:57 ` Laurent Pinchart
2020-05-28 16:21 ` Dafna Hirschfeld
2020-05-29 13:26 ` Tomasz Figa
2020-05-29 13:27 ` Tomasz Figa
2020-05-29 13:49 ` Helen Koike
2020-05-29 14:48 ` Tomasz Figa
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