This patch makes the queue lock taken in v4l2_m2m_poll interruptible.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Define jpeg_dqt as static.
Signed-off-by: NAnthony DeStefano <adx@fastmail.fm>
Signed-off-by: NIsmael Luceno <ismael.luceno@corp.bluecherry.net>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

During the media summit meeting in Edinburgh it was decided to move this
driver to staging as the first step to removing it altogether.

Most webcams covered by this driver are now supported by gspca. Nobody has the
hardware or is willing to convert the remaining devices to gspca.

This driver needs a major overhaul to have it conform to the latest frameworks
and compliancy tests.

Without hardware, however, this is next to impossible. Given the fact that
this driver seems to be pretty much unused (it has been removed from Fedora
several versions ago and nobody complained about that), we decided to drop
this driver.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Cc: Luca Risolia <luca.risolia@studio.unibo.it>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The CX18_ALSA_DBGFLG_WARN is cut and pasted twice and we can delete the
second instance.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This minor patch fixes all WARNING:SPACING style warnings in rtl2832_sdr.c

The new version of the file pleases checkpatch.pl when run with "--ignore LONG_LINE".
Signed-off-by: NOvidiu Toader <ovi@phas.ubc.ca>
Acked-by: NAntti Palosaari <crope@iki.fi>
Reviewed-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

A check for CONFIG_DM644X_VIDEO_PORT_ENABLE was added in v2.6.32. The
related Kconfig symbol was never added so this check has always
evaluated to false. Remove that check.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

rtl2832_sdr.c: fixup checkpatch issues about long lines

Aligned stuff under the ( for this version.
Signed-off-by: NAnthony DeStefano <adx@fastmail.fm>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Error handling code in poseidon_probe() misses usb_put_intf()
and usb_put_dev().

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

know -> known
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

kerneltrap.org no longer works, update to a working reference
Signed-off-by: NPranith Kumar <bobby.prani@gmail.com>
Acked-by: NAlexey Klimov <klimov.linux@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

There is a risk that the variable will be used without being initialized.

This was largely found by using a static code analysis program called cppcheck.
Signed-off-by: NRickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch remove variables that are initialized with a constant,
are never updated, and are only used as parameter of return.
Return the constant instead of using a variable.

Verified by compilation only.

The coccinelle script that find and fixes this issue is:
// <smpl>
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
    when strict
return
- ret
+ C
;
// </smpl>
Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch remove variables that are initialized with a constant,
are never updated, and are only used as parameter of return.
Return the constant instead of using a variable.

Verified by compilation only.

The coccinelle script that find and fixes this issue is:
// <smpl>
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
    when strict
return
- ret
+ C
;
// </smpl>
Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add support for the MSI Digivox Trio device.
Signed-off-by: NP. van Gaans <w3ird_n3rd@gmx.net>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This issue was reported by coccicheck using the semantic patch
at scripts/coccinelle/api/memdup.cocci
Signed-off-by: NBenoit Taine <benoit.taine@lip6.fr>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add static to tda m_* variables in the header. They don't need to be global.
With some cleanup they could probably even be marked const.

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=68191Reported-by: NChristian Schneider <christian@ch-sc.de>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch adds driver for sunxi IR controller.
It is based on Alexsey Shestacov's work based on the original driver
supplied by Allwinner.
Signed-off-by: NAlexander Bersenev <bay@hackerdom.ru>
Signed-off-by: NAlexsey Shestacov <wingrime@linux-sunxi.org>
[hdegoede@redhat.com: Changed compatible to sun4i-a10-ir]
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch adds documentation for Device-Tree bindings for sunxi IR
controller.
Signed-off-by: NAlexander Bersenev <bay@hackerdom.ru>
Signed-off-by: NAlexsey Shestacov <wingrime@linux-sunxi.org>
[hdegoede@redhat.com: Changed compatible to sun4i-a10-ir]
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add support for the depth stream at 10bpp, for now use a 'depth_mode'
command line parameter to switch between video and depth mode.
Signed-off-by: NAlexander Sosna <alexander@xxor.de>
Signed-off-by: NAntonio Ospite <ao2@ao2.it>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Currently gspca selects the first ISOC input endpoint as the input
transfer endpoint, however some devices can provide streams on endpoints
different then the first one, so some subdrivers (e.g. gspca_kinect) may
want to select a specific endpoint to use as a transfer endpoint.

Add an xfer_ep field to struct gspca_dev, and change alt_xfer() so that
it accepts a parameter which represents a specific endpoint address to
look for.

If a subdriver wants to specify a value for gspca_dev->xfer_ep it can do
that in its sd_config() callback.
Signed-off-by: NAntonio Ospite <ao2@ao2.it>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Fix stream curruption on high bitrate (>60mbit).
Signed-off-by: NEvgeny Plehov <EvgenyPlehov@ukr.net>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

While this device doesn't have a scaler (or have it disabled),
the screen dimentions are a function of the standard. Ok, right
now, only 480 lines standards are implemented, although it
supports other ones. Yet, let's calculate the size, to make
easier to add more standards latter.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

It seems that there's a bug at au0828 hardware/firmware
related to alternate setting: when the device is already at
alt 5, a further call causes the URBs to receive -ESHUTDOWN.

I found two different encarnations of this issue:

1) at qv4l2, it fails the second time we try to open the
video screen;
2) at xawtv, when audio underrun occurs, with is very
frequent, at least on my test machine.

The fix is simple: just check if alt=5 before calling
set_usb_interface().

Cc: stable@vger.kernel.org
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

There are several issues on the current code:
	1) msleep(1) is actually equivalent to msleep(10);
	2) au8522_video_set() will set reg 0xa4 to the
	   proper value for SIF, CVBS or S-Video. No need
	   to force it to CVBS;
	3) Let's not hardcode 0x9d for CBS on audio_set.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

setup_decoder_defaults() doesn't really care about the input
port. All it needs to know is if the input port is s-video or
not.

As the caller function already knows that, just pass a boolean
instead.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Let's set the the audio routing also at stream start. With this change,
we don't risk enabling the analog demux while not streaming, reducing
the risk of interfering with a DVB demux that might be happening.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The same demod is used on both analog and digital mode. We should
not let the commands for analog mode to happen while the device
is in digital mode. So, monitor it via streamon.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The input mode is used not only inside the setup_decoder_defaults()
but also at au8522_*_mode routines.

So, move it one level up. As an advantage, we can now group the
function that sets the input into just one.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The analog part of au0828 is missing the tuner Kconfig dependency.
That makes the device to not work while in analog mode.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Add the basic GPLv2+ license notice to the copyright headers at the top
of all the source files in the img-ir driver.
Reported-by: NDavid Härdeman <david@hardeman.nu>
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The sh_mobile_ceu_camera and sh_mobile_csi2 drivers are only useful on
SuperH and shmobile unless build testing.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch change MACH_MX27 dependency to SOC_IMX27 for MX2 camera
driver, since MACH_MX27 symbol is scheduled for removal.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

That driver hasn't been really maintained for a long time. It doesn't
compile in any way, it includes non-existent headers, has no users,
and marked as "BROKEN" more than year. Due to these factors, mx1_camera
is now removed from the tree.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The R-Car Video Input driver is only useful on shmobile unless build
testing.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The platform data is a single word, so simply copy
it into the device's private data structure than
keeping a copy of the pointer.

This will make changing to device-tree binding
easier as it is one allocation instead of two.
Signed-off-by: NBen Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

devm_kzalloc() allocations are freed when the device is unbound. But if a
certain path fails and the allocated memory cannot be used anyway it is
better to free it explicitly immediately. This patch does exactly this if
asynchronous group probing in scan_async_group() fails after memory has
been allocated.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Calibrate the signal strength to dB.

For this callibration, I used adapter 0 (antenna 1), connected
via a normal cable to a DTF-2111 generator.

The same cabling and RF generator connected to adapter 1
(antenna 2) has a difference of +3dBm (signal was stronger
there).

Yet, changing the RF for a difference of, let's say, 6dB
reflected on a 6dB difference at the measured signal, with
is good.

So, the signal strengh can indeed be used to measure the
antenna gain, if the antenna is repositioned. It is
not precise to measure the absolute dBm value, however.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Adds DVBv5 stats support. For now, just mimic whatever dib8000
does, as they're very similar, with regards to statistics.

However, dib7000p_get_time_us() likely require some
adjustments, as I didn't actually reviewed the formula
for it to work with DVB-T. Still, better than nothing,
as latter patches can improve it.

This patch also doesn't show the signal strength in dB
yet. The code is already there, but it requires to be
callibrated.

A latter patch will do the calibration.

It seems that this patch is also a bug fix: Before this
patch, the frontend were not tuning with some userspace
tools. I suspect that dib7000p firmware or hardware
internally expects that the statistics to be collected,
in order for it to work. With this patch, the DVB core
will always retrive statistics, even if userspace doesn't
request. So, it makes the device work on all tested apps.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Exporting multiple symbols don't work as it causes compilation
breakages, due to the way dvb_attach() works.

The bug happens when:
        CONFIG_DVB_DIB8000=m
	CONFIG_DVB_USB_DIB0700=y

As a bonus, dib8000 won't be loaded anymore if the device uses
a different frontend, reducing the memory footprint.

Tested with both Pixelview PV-D231 and MyGica S870.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>