This patch adds V4L2 HVA (Hardware Video Accelerator) video encoder
driver for STMicroelectronics SoC. It uses the V4L2 mem2mem framework.
This patch only contains the core parts of the driver:
- the V4L2 interface with the userland (hva-v4l2.c)
- the hardware services (hva-hw.c)
- the memory management utilities (hva-mem.c)
This patch doesn't include the support of specific codec (e.g. H.264)
video encoding: this support is part of subsequent patches.
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Signed-off-by: Jean-Christophe Trotin <jean-christophe.trotin@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There is a warning there, because it was pointing to a different
name. Fix it.
While here, use struct &foo, instead of &struct foo.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Document vb2_ops_wait_prepare() and vb2_ops_wait_finish(),
in order to fix those two warnings:
Documentation/media/kapi/v4l2-dev.rst:166: WARNING: c:func reference target not found: vb2_ops_wait_prepare
Documentation/media/kapi/v4l2-dev.rst:166: WARNING: c:func reference target not found: vb2_ops_wait_finish
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are a few issues at the documentation: fields not documented,
bad cross refrences, etc.
Fix them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several functions documented at the C file. Move
them to the header, as this is the one used to build the
media books.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several small issues with the documentation. Fix them,
in order to avoid producing warnings.
While here, also make checkpatch.pl happy.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several functions that were documented at the .c
file. As we only include the headers, we need to move them to
there, in order to have documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The v4l2_m2m_dev is opaque: its meaning is only known by
v4l2-mem2mem.c. Ignore it on nitpick mode.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The kernel-doc C parser doesn't like opaque structures. So,
document it on another way.
This should get rid of this warning:
./include/media/v4l2-mem2mem.h:62: error: Cannot parse struct or union!
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Several routines are somewhat documented at v4l2-mem2mem.c
file. Move what's there to the header file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fix this warning:
Documentation/media/kapi/mc-core.rst:97: WARNING: c:func reference target not found: media_devnode_release
The media_device_release() is a function internal to media-devnode.c,
and not exported elsewhere. So, we can't cross-reference it here.
Make it explicit at the documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
One reference there is still using :ref:. Fix it, to solve this
warning:
Documentation/media/uapi/mediactl/media-ioc-g-topology.rst:236: WARNING: undefined label: media-v2-intf-devnode (if the link has no caption the label must precede a section header)
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The struct v4l2_mpeg_vbi_ITV0 is identical to struct v4l2_mpeg_vbi_itv0,
except by its size, and it is documented at the same place at the
book.
Fix cross reference for it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several broken references there, due to the conversion to
C domain. Fix them using this shell script and manually adjust what's
broken:
# funcs is a file with the broken functions/references
for i in $(cat funcs|sort|uniq|perl -ne 'print "$1\n" if (m/(\S+)$/)'); do
i=${i//-/_}
echo $i
j=${i//_/-}
for k in $(git grep -l "_$j:" Documentation/); do
sed s,\_$j\:,"c\:type\:\: $i", <$k >a && mv a $k
done
for k in $(git grep -l "$j" Documentation/media/*.exceptions); do
sed s,$j,":c\:type\:\`$i\`", <$k >a && mv a $k
done
for k in $(git grep -l "$j" Documentation/); do
sed "s,:ref:\`$i <$j>\`,:c:type:\`$i\`," <$k >a && mv a $k
sed "s,:ref:\`$j\`,:c:type:\`$i\`," <$k >a && mv a $k
sed -E "s,:ref:\`(.*)<$j>\`,:c:type:\`\1<$i>\`," <$k >a && mv a $k
done
for k in $(git grep -l "<$j>" include/media); do
sed -E "s,:ref:\`(.*)<$j>\`,enum \&$i," <$k >a && mv a $k
done
done
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Several structs were renamed or removed during V4L2 development.
Don't try to cross-reference the legacy ones.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Use C cross-references to mention the V4L2 API calls on all
places it occurs inside this file.
While here, also mark constants as such.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fix those warnings:
Documentation/media/uapi/cec/cec-ioc-dqevent.rst:124: WARNING: c:func reference target not found: clock_gettime(2)
By replacing it with the right function name, using this shell script:
for i in `find Documentation/media -type f`; do sed 's,clock_gettime(2),clock_gettime,' <$i >a && mv a $i; done
Please notice that this will make the nitpick mode to shut up
complaining about that, becasue clock_gettime is on its exclude list,
but the cross reference will be undefined until someone documents
this function at the core documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The :c:type: references point to the structure name, and not to
struct foo.
Fixed via this shell script:
for i in `find Documentation/media -type f`; do perl -ne 'if (s/\:c\:type\:\`struct\s*(\S+)\`/struct :c:type:`$1`/) { s/struct\s+struct/struct/; s/(struct\s+\:c\:type\:\`\S+\`)\s+structure/$1/; } print $_' <$i >a && mv a $i; done
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Instead of using c:type:`struct foo <foo>`, use:
struct c:type:`foo`
This patch was generated via this shell script:
for i in `find Documentation/media -type f`; do perl -ne 'if (m/\:c\:type\:\`struct\s+(\S+)\s*\<(\S+)\>\`/) { $s=$1; $r=$2; if ($s eq $r) { s/\:c\:type\:\`struct\s+(\S+)\s*\<(\S+)\>\`/struct :c:type:`$2`/; s/struct\s+struct/struct/; s/(struct\s+\:c\:type\:\`\S+\`)\s+structure/$1/; }} print $_' <$i >a && mv a $i; done
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Trivially fix those broken references, by copying the structs
fron the header, just like other API documentation at the
DVB side.
This doesn't have the level of quality used at the V4L2 side
of the API, but, as this documents a deprecated API, used
only by av7110 driver, it doesn't make much sense to invest
time making it better.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Several links are broken, as they were using the typedef
name, instead of using the corresponding structs. Fix them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Add documentation for struct ca_slot_info and for the two
sets of define used by it, according with what's there at the
ca.h header.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are no descriptions at ca.h header for this struct.
Yet, as we want to get rid of the warnings, let's add a
boilerplate, with just the struct types and fields.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that we moved away from the :ref: type of references,
we need to update the exceptions lists.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are two warnings that are due to functions that has long
gone:
Documentation/media/kapi/v4l2-subdev.rst:417: WARNING: c:func reference target not found: v4l2_i2c_new_subdev_cfg
Documentation/media/kapi/v4l2-subdev.rst:436: WARNING: c:func reference target not found: v4l2_i2c_new_probed_subdev
Update the documentation to remove those.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that scripts/kernel-doc was fixed to parse the typedef
argument used here, let it produce documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Fix some minor issues at the documentation tags on this file,
adding cross-references where needed, and fixing some broken
ones.
While here, fix a few spaces before tabs to make Checkpatch happier.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The "struct" were inside the reference, causing it to break.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several undocumented functions here; document them.
While here, make checkpatch.pl happy.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Change the parse-headers.pl and the corresponding files to use
the C domain for enum references.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The prepare_ext_ctrls() function is actually internal to the
v4l2-ctrls.c implementation, so it doesn't have a declaration
for the kAPI header to reference it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The V4L version 1 structures had long gone from the Linux Kernel.
It doesn't make sense to use cross-references for them, as they
won't be found.
So, get rid of them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
instead of declaring the uAPI structs using usual refs, e. g.:
.. _foo-struct:
Use the C domain way:
.. c:type:: foo_struct
This way, the kAPI documentation can use cross-references to
point to the uAPI symbols.
That solves about ~100 undefined warnings like:
WARNING: c:type reference target not found: foo_struct
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
