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Message-ID: <20191006191416.1130515-1-nfraprado@protonmail.com>
Date: Sun, 06 Oct 2019 19:14:58 +0000
From: Nícolas F. R. A. Prado
<nfraprado@...tonmail.com>
To: linux-media@...r.kernel.org
Cc: Helen Koike <helen.koike@...labora.com>,
Shuah Khan <skhan@...uxfoundation.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans Verkuil <hverkuil@...all.nl>,
linux-kernel@...r.kernel.org, lkcamp@...ts.libreplanetbr.org
Subject: [PATCH] media: vimc: Make capture devices and subdevices use different link_validates
Instead of validating the links to capture devices and subdevices with
the same function, use the default v4l function for links between
subdevices and only use a different function for validating between
capture device and subdevice.
This change should also ease future work to associate multiple mbus
codes for the same pixelformat in vimc_pix_map.
These changes were tested with
v4l2-compliance SHA: 3f806630e2ecbcebe31872b865c5c4b42f111a99, 64 bits
and passed all tests:
Grand Total for vimc device /dev/media0: 451, Succeeded: 451, Failed: 0, Warnings: 0
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...tonmail.com>
---
drivers/media/platform/vimc/vimc-capture.c | 78 +++++++++++++++-
drivers/media/platform/vimc/vimc-common.c | 103 ++++-----------------
drivers/media/platform/vimc/vimc-common.h | 3 +
3 files changed, 96 insertions(+), 88 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index 602f80323031..924b99f82123 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -321,8 +321,84 @@ static const struct vb2_ops vimc_cap_qops = {
.wait_finish = vb2_ops_wait_finish,
};
+int vimc_cap_link_validate(struct media_link *link)
+{
+ struct v4l2_pix_format source_fmt, sink_fmt;
+ int ret;
+
+ ret = vimc_get_pix_format(link->source, &source_fmt);
+ if (ret)
+ return ret;
+
+ ret = vimc_get_pix_format(link->sink, &sink_fmt);
+ if (ret)
+ return ret;
+
+ pr_info("vimc link validate: "
+ "%s:src:%dx%d (0x%x, %d, %d, %d, %d) "
+ "%s:snk:%dx%d (0x%x, %d, %d, %d, %d)\n",
+ /* src */
+ link->source->entity->name,
+ source_fmt.width, source_fmt.height,
+ source_fmt.pixelformat, source_fmt.colorspace,
+ source_fmt.quantization, source_fmt.xfer_func,
+ source_fmt.ycbcr_enc,
+ /* sink */
+ link->sink->entity->name,
+ sink_fmt.width, sink_fmt.height,
+ sink_fmt.pixelformat, sink_fmt.colorspace,
+ sink_fmt.quantization, sink_fmt.xfer_func,
+ sink_fmt.ycbcr_enc);
+
+ /* The width, height and pixelformat must match. */
+ if (source_fmt.width != sink_fmt.width
+ || source_fmt.height != sink_fmt.height
+ || source_fmt.pixelformat != sink_fmt.pixelformat)
+ return -EPIPE;
+
+ /*
+ * The field order must match, or the sink field order must be NONE
+ * to support interlaced hardware connected to bridges that support
+ * progressive formats only.
+ */
+ if (source_fmt.field != sink_fmt.field &&
+ sink_fmt.field != V4L2_FIELD_NONE)
+ return -EPIPE;
+
+ /*
+ * If colorspace is DEFAULT, then assume all the colorimetry is also
+ * DEFAULT, return 0 to skip comparing the other colorimetry parameters
+ */
+ if (source_fmt.colorspace == V4L2_COLORSPACE_DEFAULT
+ || sink_fmt.colorspace == V4L2_COLORSPACE_DEFAULT)
+ return 0;
+
+ /* Colorspace must match. */
+ if (source_fmt.colorspace != sink_fmt.colorspace)
+ return -EPIPE;
+
+ /* Colorimetry must match if they are not set to DEFAULT */
+ if (source_fmt.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT
+ && sink_fmt.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT
+ && source_fmt.ycbcr_enc != sink_fmt.ycbcr_enc)
+ return -EPIPE;
+
+ if (source_fmt.quantization != V4L2_QUANTIZATION_DEFAULT
+ && sink_fmt.quantization != V4L2_QUANTIZATION_DEFAULT
+ && source_fmt.quantization != sink_fmt.quantization)
+ return -EPIPE;
+
+ if (source_fmt.xfer_func != V4L2_XFER_FUNC_DEFAULT
+ && sink_fmt.xfer_func != V4L2_XFER_FUNC_DEFAULT
+ && source_fmt.xfer_func != sink_fmt.xfer_func)
+ return -EPIPE;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(vimc_cap_link_validate);
+
static const struct media_entity_operations vimc_cap_mops = {
- .link_validate = vimc_link_validate,
+ .link_validate = vimc_cap_link_validate,
};
static void vimc_cap_release(struct video_device *vdev)
diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c
index a3120f4f7a90..fe91d67811e5 100644
--- a/drivers/media/platform/vimc/vimc-common.c
+++ b/drivers/media/platform/vimc/vimc-common.c
@@ -247,35 +247,40 @@ int vimc_pipeline_s_stream(struct media_entity *ent, int enable)
}
EXPORT_SYMBOL_GPL(vimc_pipeline_s_stream);
-static int vimc_get_mbus_format(struct media_pad *pad,
- struct v4l2_subdev_format *fmt)
+int vimc_get_pix_format(struct media_pad *pad,
+ struct v4l2_pix_format *fmt)
{
if (is_media_entity_v4l2_subdev(pad->entity)) {
struct v4l2_subdev *sd =
media_entity_to_v4l2_subdev(pad->entity);
+ struct v4l2_subdev_format sd_fmt;
+ const struct vimc_pix_map *pix_map;
int ret;
- fmt->which = V4L2_SUBDEV_FORMAT_ACTIVE;
- fmt->pad = pad->index;
+ sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ sd_fmt.pad = pad->index;
+
+ ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_fmt);
- ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, fmt);
if (ret)
return ret;
+ v4l2_fill_pix_format(fmt, &sd_fmt.format);
+
+ pix_map = vimc_pix_map_by_code(sd_fmt.format.code);
+ fmt->pixelformat = pix_map->pixelformat;
+
} else if (is_media_entity_v4l2_video_device(pad->entity)) {
struct video_device *vdev = container_of(pad->entity,
struct video_device,
entity);
struct vimc_ent_device *ved = video_get_drvdata(vdev);
- const struct vimc_pix_map *vpix;
- struct v4l2_pix_format vdev_fmt;
if (!ved->vdev_get_format)
return -ENOIOCTLCMD;
- ved->vdev_get_format(ved, &vdev_fmt);
- vpix = vimc_pix_map_by_pixelformat(vdev_fmt.pixelformat);
- v4l2_fill_mbus_format(&fmt->format, &vdev_fmt, vpix->code);
+ ved->vdev_get_format(ved, fmt);
+
} else {
return -EINVAL;
}
@@ -283,84 +288,8 @@ static int vimc_get_mbus_format(struct media_pad *pad,
return 0;
}
-int vimc_link_validate(struct media_link *link)
-{
- struct v4l2_subdev_format source_fmt, sink_fmt;
- int ret;
-
- ret = vimc_get_mbus_format(link->source, &source_fmt);
- if (ret)
- return ret;
-
- ret = vimc_get_mbus_format(link->sink, &sink_fmt);
- if (ret)
- return ret;
-
- pr_info("vimc link validate: "
- "%s:src:%dx%d (0x%x, %d, %d, %d, %d) "
- "%s:snk:%dx%d (0x%x, %d, %d, %d, %d)\n",
- /* src */
- link->source->entity->name,
- source_fmt.format.width, source_fmt.format.height,
- source_fmt.format.code, source_fmt.format.colorspace,
- source_fmt.format.quantization, source_fmt.format.xfer_func,
- source_fmt.format.ycbcr_enc,
- /* sink */
- link->sink->entity->name,
- sink_fmt.format.width, sink_fmt.format.height,
- sink_fmt.format.code, sink_fmt.format.colorspace,
- sink_fmt.format.quantization, sink_fmt.format.xfer_func,
- sink_fmt.format.ycbcr_enc);
-
- /* The width, height and code must match. */
- if (source_fmt.format.width != sink_fmt.format.width
- || source_fmt.format.height != sink_fmt.format.height
- || source_fmt.format.code != sink_fmt.format.code)
- return -EPIPE;
-
- /*
- * The field order must match, or the sink field order must be NONE
- * to support interlaced hardware connected to bridges that support
- * progressive formats only.
- */
- if (source_fmt.format.field != sink_fmt.format.field &&
- sink_fmt.format.field != V4L2_FIELD_NONE)
- return -EPIPE;
-
- /*
- * If colorspace is DEFAULT, then assume all the colorimetry is also
- * DEFAULT, return 0 to skip comparing the other colorimetry parameters
- */
- if (source_fmt.format.colorspace == V4L2_COLORSPACE_DEFAULT
- || sink_fmt.format.colorspace == V4L2_COLORSPACE_DEFAULT)
- return 0;
-
- /* Colorspace must match. */
- if (source_fmt.format.colorspace != sink_fmt.format.colorspace)
- return -EPIPE;
-
- /* Colorimetry must match if they are not set to DEFAULT */
- if (source_fmt.format.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT
- && sink_fmt.format.ycbcr_enc != V4L2_YCBCR_ENC_DEFAULT
- && source_fmt.format.ycbcr_enc != sink_fmt.format.ycbcr_enc)
- return -EPIPE;
-
- if (source_fmt.format.quantization != V4L2_QUANTIZATION_DEFAULT
- && sink_fmt.format.quantization != V4L2_QUANTIZATION_DEFAULT
- && source_fmt.format.quantization != sink_fmt.format.quantization)
- return -EPIPE;
-
- if (source_fmt.format.xfer_func != V4L2_XFER_FUNC_DEFAULT
- && sink_fmt.format.xfer_func != V4L2_XFER_FUNC_DEFAULT
- && source_fmt.format.xfer_func != sink_fmt.format.xfer_func)
- return -EPIPE;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(vimc_link_validate);
-
static const struct media_entity_operations vimc_ent_sd_mops = {
- .link_validate = vimc_link_validate,
+ .link_validate = v4l2_subdev_link_validate,
};
int vimc_ent_sd_register(struct vimc_ent_device *ved,
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h
index 698db7c07645..8a4310430292 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -263,6 +263,9 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved,
void vimc_ent_sd_unregister(struct vimc_ent_device *ved,
struct v4l2_subdev *sd);
+
+int vimc_get_pix_format(struct media_pad *pad, struct v4l2_pix_format *fmt);
+
/**
* vimc_link_validate - validates a media link
*
--
2.23.0
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