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Both CA and decoders are optional. Also, the presence or
absence has nothing to do on being a PCI card or not.
Nowadays, most hardware leaves the decoders to either the
GPU or to some ISP inside the SoC, instead of implementing
it inside the Digital TV part of the device.
So, change the wording to reflect the hardware changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The references there are only for DVB. Add missing references for
ATSC and ISDB standards.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
On several places at the introduction, a digital TV board and its
kernel support is called as DVB. The reason is simple: by the
time the document was written, there were no other digital TV
standards :-)
Modernize the specs by referring to them as Digital TV.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Recently added FE_NONE to the enum fe_status, so update the
documentation accordingly.
[mchehab@s-opensource.com: change description to actually
reflect what FE_NONE means: no lock of any kind]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Do some minor editorial changes to make this chapter visually
better, and the example a little bit clearer.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The description of the DVBv5 API was written a long time ago,
where the API was still new, and there were not apps using it.
Now that the API is stable and used by new applications, clarify
that DVBv3 calls should not be used and why.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The ATSC 3.0 uses MPEG Media Transport, with is not currently
supported. Yet, we'll need to implement it sooner or later.
So, mention about it at the specs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The description of what SEC means fits well as a footnote.
That makes the need of saying that SEC is only for Satellite
when it was mentioned, as the footnote already says that.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The introduction for the frontend chapter is not quite
correct:
- it tells that it supports only three types of
delivery systems, in opposite to three *groups*;
- It adds ISDB-C to the list of supported systems,
but, this is not true.
Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The device numbering for DVB uses "M" and "N" as vars for the
number of the device, but sometimes this is printed using normal
font instead of verbatim.
While here, remove an extra space after quotation marks.
This is a minor cleanup with no changes at the text.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Debian's ImageMagick is currently unable to decode those
images. Use scour to simplify the SVG, and provide only
one font type, in order to make it more palatable.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Since 2015, the documentation for FE_DISEQC_SEND_BURST, FE_SET_TONE
and FE_SET_VOLTAGE are incorrectly saying that the enums are passed
by reference. They aren't: they're passed by value.
Fix the documentation to reflect reality.
Fixes: 81959d996a ("[media] DocBook: better document FE_DISEQC_SEND_BURST ioctl")
Fixes: d6b6d346e5 ("[media] DocBook: better document FE_SET_VOLTAGE ioctl")
Fixes: 6dc59e7a19 ("[media] DocBook: better document FE_SET_TONE ioctl")
Reported-by: Thierry Lelegard <thierry.lelegard@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that we have an extension to handle images, use it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fix typos and add the following to the scripts/spelling.txt:
an union||a union
Link: http://lkml.kernel.org/r/1481573103-11329-5-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The PDF files that contain media images were actually generated
offline from their SVG or PNG source files.
Sphinx can handle PNG sources automatially. So, let's just
drop their PDF counterparts.
For SVG, however, Sphinx doesn't produce the right tags to
use the TexLive SVG support. Also, the SVG support is done via
shell execution, with is not nice.
So, while we don't have any support for SVG inside Sphinx
core or as an extension, move the logic to build them to Makefile,
producing the PDF images on runtime.
NOTE: due to the way Sphinx works, the PDF images should be
generated inside the Kernel source tree, as otherwise Sphinx
won't find it, not obeying what's specified by "O=" makefile
parameter.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
SVG images are nicer, as they can easily be scaled. Also, they're
written in text, with makes easier to work.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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>
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>
Name all ioctl references and make them match the ioctls that
are documented. That will improve the cross-reference index,
as it will have all ioctls and syscalls there.
While here, improve the documentation, marking the deprecated
ioctls, and making the non-deprecated ones more like the rest
of the media book.
Also, add a notice for ioctls that still require documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Now that we have an override for the c domain that will do
the right thing for the Kernel, stop abusing on the cpp
domain.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Add position hints for some tables, in order for them to be
shown properly on LaTeX output.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
LaTeX doesn't handle too well auto-width on tables, and ReST
markup requires an special tag to give it the needed hints.
As we're using A4 paper, we have 17cm of useful spaces. As
most media tables have widths, let's use it to generate the
needed via the following perl script:
my ($line_size, $table_header, $has_cols) = (17.5, 0, 0);
my $out;
my $header = "";
my @widths = ();
sub round { $_[0] > 0 ? int($_[0] + .5) : -int(-$_[0] + .5) }
while (<>) {
if (!$table_header) {
$has_cols = 1 if (m/..\s+tabularcolumns::/);
if (m/..\s+flat-table::/) {
$table_header = 1;
$header = $_;
next;
}
$out .= $_;
next;
}
$header .= $_;
@widths = split(/ /, $1) if (m/:widths:\s+(.*)/);
if (m/^\n$/) {
if (!$has_cols && @widths) {
my ($tot, $t, $i) = (0, 0, 0);
foreach my $v(@widths) { $tot += $v; };
$out .= ".. tabularcolumns:: |";
for ($i = 0; $i < scalar @widths - 1; $i++) {
my $v = $widths[$i];
my $w = round(10 * ($v * $line_size) / $tot) / 10;
$out .= sprintf "p{%.1fcm}|", $w;
$t += $w;
}
my $w = $line_size - $t;
$out .= sprintf "p{%.1fcm}|\n\n", $w;
}
$out .= $header;
$table_header = 0;
$has_cols = 0;
$header = "";
@widths = ();
}
}
print $out;
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Change multi-line note tags to be more symetric, e. g. not starting
the text together witht the tag.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The uAPI book has 5 parts, but they lost numeration after
conversion to rst. Manually number those parts, and make
the main index with 1 depth, to only show the parts and
the annexes.
At each part, use :maxwidth: 5, in order to show a more
complete index.
While here, fix the cross-references between different
books.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This patch touches on places where it shouldn't: image
files and code examples. Also, it doesn't fix all array
occurrences.
So, let's revert it.
This reverts commit ffbab694ed.
Those characters are used for citations. Better to escape, to
avoid them to be misinterpreted.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several notes and warning mesages in the middle of
the media docbook. Use the ReST tags for that, as it makes
them visually better and hightlights them.
While here, modify a few ones to make them clearer.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
There are several notes for this DTV property. Some are
outdated, so take some care of it, making it updated.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Unfortunately, captions are new on Sphinx for c blocks: it was
added only on version 1.3. Also, it were already bad enough
not being able to auto-numerate them.
So, let's give up and use, instead, titles before the examples.
Not much is lost, and, as a side track, we don't need to
numerate them anymore.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The name of the subsystem is "media", and not "linux_tv". Also,
as we plan to add other stuff there in the future, let's
rename also the media uAPI book to media_uapi, to make it
clearer.
No functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
