Commit Graph

21 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab 2ebe0bb30f media: v4l: fix broken video4linux docs locations
There are several places pointing to old documentation files:

  Documentation/video4linux/API.html
  Documentation/video4linux/bttv/
  Documentation/video4linux/cx2341x/fw-encoder-api.txt
  Documentation/video4linux/m5602.txt
  Documentation/video4linux/v4l2-framework.txt
  Documentation/video4linux/videobuf
  Documentation/video4linux/Zoran

Make them point to the new location where available, removing
otherwise.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Hans Verkuil 1f5965c4df media: gspca: convert to vb2
The gspca core has its own buffere implementation. Use the
core VB 2 instead.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28 15:57:17 -04:00
Joe Perches 37d5efb019 media: gspca: Convert PDEBUG to gspca_dbg
Use a more typical logging style.

The current macro hides the gspca_dev argument so add it to the
macro uses instead.

Miscellanea:

o Add missing '\n' terminations to formats
o Realign arguments to open parenthesis
o Remove commented out uses of PDEBUG

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-08 10:10:15 -05:00
Joe Perches 52173c5f3f media: gspca: Convert PERR to gspca_err
Use a more typical kernel logging style.

The current macro hides the gspca_dev argument so add it to the
macro uses instead.

Miscellanea:

o Add missing '\n' terminations to formats
o Realign arguments to open parenthesis

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-08 10:08:50 -05:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Pan Bian 13174c388a [media] m5602_s5k83a: check return value of kthread_create
Function kthread_create() returns an ERR_PTR on error. However, in
function s5k83a_start(), its return value is used without validation.
This may result in a bad memory access bug. This patch fixes the bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06 07:28:36 -03:00
Mauro Carvalho Chehab 1ddc9f75a4 [media] gspca: don't break long lines
Due to the 80-cols restrictions, and latter due to checkpatch
warnings, several strings were broken into multiple lines. This
is not considered a good practice anymore, as it makes harder
to grep for strings at the source code.

As we're right now fixing other drivers due to KERN_CONT, we need
to be able to identify what printk strings don't end with a "\n".
It is a way easier to detect those if we don't break long lines.

So, join those continuation lines.

The patch was generated via the script below, and manually
adjusted if needed.

</script>
use Text::Tabs;
while (<>) {
	if ($next ne "") {
		$c=$_;
		if ($c =~ /^\s+\"(.*)/) {
			$c2=$1;
			$next =~ s/\"\n$//;
			$n = expand($next);
			$funpos = index($n, '(');
			$pos = index($c2, '",');
			if ($funpos && $pos > 0) {
				$s1 = substr $c2, 0, $pos + 2;
				$s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2;
				$s2 =~ s/^\s+//;

				$s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne "");

				print unexpand("$next$s1\n");
				print unexpand("$s2\n") if ($s2 ne "");
			} else {
				print "$next$c2\n";
			}
			$next="";
			next;
		} else {
			print $next;
		}
		$next="";
	} else {
		if (m/\"$/) {
			if (!m/\\n\"$/) {
				$next=$_;
				next;
			}
		}
	}
	print $_;
}
</script>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 09:41:37 -02:00
Mauro Carvalho Chehab 123818ee8c m5602_ov7660: move skeletons to the .c file
The header file has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:37:43 -03:00
Mauro Carvalho Chehab 804c7812ef m5602_po1030: move skeletons to the .c file
The header file has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:36:43 -03:00
Mauro Carvalho Chehab 1ab9e60001 m5602_s5k83a: move skeletons to the .c file
The header file has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:35:43 -03:00
Mauro Carvalho Chehab 14ccffa3c1 m5602_ov9650: move skeletons to the .c file
The header file has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:35:35 -03:00
Mauro Carvalho Chehab 349e4dc59a m5602_mt9m111: move skeletons to the .c file
The header file has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:35:24 -03:00
Mauro Carvalho Chehab 0eed95b249 m5602_s5k4aa: move skeletons to the .c file
The mc5602_s5k4aa.h has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:35:21 -03:00
Mauro Carvalho Chehab 511ebc093c m5602_core: move skeletons to the .c file
The mc5602_brigde.h is included at m5602 submodules. This
causes Gcc 6.1 to complain:

drivers/media/usb/gspca/m5602/m5602_bridge.h:124:28: warning: 'sensor_urb_skeleton' defined but not used [-Wunused-const-variable=]
 static const unsigned char sensor_urb_skeleton[] = {
                            ^~~~~~~~~~~~~~~~~~~
drivers/media/usb/gspca/m5602/m5602_bridge.h:119:28: warning: 'bridge_urb_skeleton' defined but not used [-Wunused-const-variable=]
 static const unsigned char bridge_urb_skeleton[] = {
                           ^~~~~~~~~~~~~~~~~~~

Let's shut up gcc 6.1 warnings by moving those data structures
to the core, as they're used only there.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-24 09:35:15 -03:00
Nicholas Mc Guire 63f2f41752 [media] gscpa_m5602: use msecs_to_jiffies for conversions
API compliance scanning with coccinelle flagged:
./drivers/media/usb/gspca/m5602/m5602_s5k83a.c:180:9-25:
	 WARNING: timeout (100) seems HZ dependent

Numeric constants passed to schedule_timeout() make the effective
timeout HZ dependent which makes little sense in a polling loop for
the cameras rotation state.
Fixed up by converting the constant to jiffies with msecs_to_jiffies()

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:26:06 -03:00
Ondrej Zary 1966bc2a48 [media] gspca: store current mode instead of individual parameters
Store complete current mode (struct v4l2_pix_format) in struct gspca_dev
instead of separate pixfmt, width and height parameters.
This is a preparation for variable resolution support.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-09-26 07:19:09 -03:00
Mauro Carvalho Chehab 9dc033f1ea [media] m5602_ov7660: return error at ov7660_init()
It used to be a code that returns arror at ov7660_init.
However, this was removed by changeset c84e412f:

@@ -231,33 +116,40 @@ int ov7660_init(struct sd *sd)
        if (dump_sensor)
                ov7660_dump_registers(sd);

-   err = ov7660_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
-   if (err < 0)
-           return err;
+ return 0;
+}

-   err = ov7660_set_auto_white_balance(&sd->gspca_dev,
-           sensor_settings[AUTO_WHITE_BALANCE_IDX]);
-   if (err < 0)
-           return err;

As complained by gcc:
	drivers/media/usb/gspca/m5602/m5602_ov7660.c: In function 'ov7660_init':
	drivers/media/usb/gspca/m5602/m5602_ov7660.c:99:9: warning: variable 'err' set but not used [-Wunused-but-set-variable]

It should be noticed that the original error code was crappy, as it wasn't
returning any error if sensor init fails.

Fix it by returning an error if the sensor can't be initialized.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-22 09:46:48 -03:00
Theodore Kilgore c93396e135 [media] gspca: Remove gspca-specific debug magic
Instead use v4l2_dbg and v4l2_err. Note that the PDEBUG macro is kept to
make this patch-set less invasive, but it is simply a wrapper around
v4l2_dbg now. Most of the other changes are there to make the dev parameter
for the v4l2_xxx macros available everywhere we do logging.

Signed-off-by: Theodore Kilgore <kilgota@auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-05 15:13:48 -03:00
Hans de Goede c84e412f6f [media] gscpa_m5602: Convert to the control framework
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-05 15:10:27 -03:00
Gregor Jasny 6842593536 [media] Add Fujitsu Siemens Amilo Pi 2530 to gspca upside down table
I've got an webcam upside down report for the following system:
     System Information
             Manufacturer: FUJITSU SIEMENS
             Product Name: AMILO Pi 2530
             Version:
             Serial Number:
             UUID: <removed>
             Wake-up Type: Power Switch
             SKU Number: Not Specified
             Family: Not Specified
     Base Board Information
             Manufacturer: FUJITSU SIEMENS
             Product Name: F42
             Version: 00030D0000000001
             Serial Number: <removed>
Currently an entry in the gspca/m5602 quirk table is missing.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Acked-by: Erik Andrén <erik.andren@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-28 16:48:28 -02:00
Mauro Carvalho Chehab 0c0d06cac6 [media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15 16:25:07 -03:00