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Message-ID: <20191030003209.1997739-1-nfraprado@protonmail.com>
Date: Wed, 30 Oct 2019 00:33:18 +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 v3] 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>
---
Changes in v3:
- Rebase patch on current media tree
- Make vimc_get_pix_format() static
Changes in v2:
- Remove blank lines
- Rename vimc_cap_link_validate to vimc_vdev_link_validate and move it back to
vimc-common.c
- Fix style issue on vimc_get_pix_format header
- Remove vimc_get_pix_format declaration from vimc-common.h
drivers/media/platform/vimc/vimc-capture.c | 2 +-
drivers/media/platform/vimc/vimc-common.c | 85 +++++++++++-----------
drivers/media/platform/vimc/vimc-common.h | 4 +-
3 files changed, 46 insertions(+), 45 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index a5d79fb25dff..76c015898cfd 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -322,7 +322,7 @@ static const struct vb2_ops vimc_cap_qops = {
};
static const struct media_entity_operations vimc_cap_mops = {
- .link_validate = vimc_link_validate,
+ .link_validate = vimc_vdev_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 2a0c40e9ae88..eb1cac0c01d6 100644
--- a/drivers/media/platform/vimc/vimc-common.c
+++ b/drivers/media/platform/vimc/vimc-common.c
@@ -194,35 +194,36 @@ const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat)
return NULL;
}
-static int vimc_get_mbus_format(struct media_pad *pad,
- struct v4l2_subdev_format *fmt)
+static 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, fmt);
+ ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_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;
}
@@ -230,16 +231,16 @@ static int vimc_get_mbus_format(struct media_pad *pad,
return 0;
}
-int vimc_link_validate(struct media_link *link)
+int vimc_vdev_link_validate(struct media_link *link)
{
- struct v4l2_subdev_format source_fmt, sink_fmt;
+ struct v4l2_pix_format source_fmt, sink_fmt;
int ret;
- ret = vimc_get_mbus_format(link->source, &source_fmt);
+ ret = vimc_get_pix_format(link->source, &source_fmt);
if (ret)
return ret;
- ret = vimc_get_mbus_format(link->sink, &sink_fmt);
+ ret = vimc_get_pix_format(link->sink, &sink_fmt);
if (ret)
return ret;
@@ -248,21 +249,21 @@ int vimc_link_validate(struct media_link *link)
"%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,
+ 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.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)
+ 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;
/*
@@ -270,43 +271,43 @@ int vimc_link_validate(struct media_link *link)
* 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)
+ 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.format.colorspace == V4L2_COLORSPACE_DEFAULT
- || sink_fmt.format.colorspace == V4L2_COLORSPACE_DEFAULT)
+ if (source_fmt.colorspace == V4L2_COLORSPACE_DEFAULT
+ || sink_fmt.colorspace == V4L2_COLORSPACE_DEFAULT)
return 0;
/* Colorspace must match. */
- if (source_fmt.format.colorspace != sink_fmt.format.colorspace)
+ if (source_fmt.colorspace != sink_fmt.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)
+ 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.format.quantization != V4L2_QUANTIZATION_DEFAULT
- && sink_fmt.format.quantization != V4L2_QUANTIZATION_DEFAULT
- && source_fmt.format.quantization != sink_fmt.format.quantization)
+ if (source_fmt.quantization != V4L2_QUANTIZATION_DEFAULT
+ && sink_fmt.quantization != V4L2_QUANTIZATION_DEFAULT
+ && source_fmt.quantization != sink_fmt.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)
+ 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;
}
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 c75401a36312..bf729fcde6a9 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -206,12 +206,12 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved,
const struct v4l2_subdev_ops *sd_ops);
/**
- * vimc_link_validate - validates a media link
+ * vimc_vdev_link_validate - validates a media link
*
* @link: pointer to &struct media_link
*
* This function calls validates if a media link is valid for streaming.
*/
-int vimc_link_validate(struct media_link *link);
+int vimc_vdev_link_validate(struct media_link *link);
#endif
--
2.23.0
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