If the vidioc_default implementation doesn't support the ioctl, then drivers
must return -ENOTTY instead of -EINVAL.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Both radio-keene and dsbr100 did one v4l2_device_get too many. Thus the refcount
never became 0 and that causes a memory leak.

Also updated the V4L2 framework documentation accordingly.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

buf[] is a 4 character array.  Perhaps this was some debugging code from
back in the day?
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The output of "make versioncheck" told us that the file
drivers/media/dvb/ddbridge/ddbridge-code.c has a incorrect include of
version.h:

linux/drivers/media/dvb/ddbridge/ddbridge-core.c: 34 linux/version.h not
needed.

After take a look in the code, we can agree to remove it.

Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <linux-media@vger.kernel.org>
Signed-off-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The output of "make versioncheck" told us that:

drivers/media/radio/radio-keene.c: 31 linux/version.h not needed.

After take a look in the code, we can agree to remove it.

Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <linux-media@vger.kernel.org>
Signed-off-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The output of "make versioncheck" told us that:

drivers/media/video/adp1653.c: 37 linux/version.h not needed.

After we take a look at the code, we can afree to remove it.

Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <linux-media@vger.kernel.org>
Signed-off-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

As reported by Marcos:
> The output of "make versioncheck" told us that:
>
> drivers/staging/media/easycap/easycap_ioctl.c: 2442: need linux/version.h

Now that drivers/media/video/v4l2-ioctl.c fills cap->version:
	case VIDIOC_QUERYCAP:
	{
		struct v4l2_capability *cap = (struct v4l2_capability *)arg;

		if (!ops->vidioc_querycap)
			break;

		cap->version = LINUX_VERSION_CODE;

V4L2 drivers that use video_ioctl2() shouldn't initialize it anymore.
Reported-by: NMarcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

As reported by Marcos:

On 04-18-2012 01:30, Marcos Paulo de Souza wrote:
> The output of "make versioncheck" told us that:
>
> drivers/media/video/tlg2300/pd-video.c: 1669: need linux/version.h
>
> If we take a look at the code, we can see that this file uses the macro
> KERNEL_VERSION.

The V4L2 core now fills it automatically, so drivers shouldn't touch on
cap->version anymore.

Reported by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Reported working here:
http://ubuntuforums.org/archive/index.php/t-1510188.html
http://ubuntuforums.org/archive/index.php/t-1756828.html
https://sites.google.com/site/slackwarestuff/home/elgato-eyetvSigned-off-by: NGianluca Gennari <gennarone@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NTim Gardner <tim.gardner@canonical.com>
Cc: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove duplicate code and comment, probably due to a patch applied twice.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This function is only called from within au8522_common.c - mark it static.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

au8522_dig.o and au8522_decoder.o function independentantly
of each other, each for a different hardware function using
a different software subsystem api, each with its own set
of subsystem module dependencies.

Since these drivers do not depend on each other, and it is
in fact possible to build hardware designs using one function
and not the other, lets split this module into two, allowing
system integrators to enable the hardware without dragging in
undesired dependencies.
Signed-off-by: NMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

We can tell from the eeprom whether we have a xc5000a or xc5000c.
Attach the correct tuner based on this information.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Rather than loading firmware specific for the xtal frequency, just use
the standard firmware and set the xtal frequency after firmware upload.
Signed-off-by: NMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

`clipcount' is from userspace and thus needs validation.  Otherwise,
a large `clipcount' could overflow the vmalloc() size, leading to
out-of-bounds access.

| setup_window()
| zoran_s_fmt_vid_overlay()
| __video_do_ioctl()
| video_ioctl2()

Use 2048 as the maximum `clipcount'.  Also change the corresponding
parameter type to `unsigned int'.
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

release_firmware() tests for NULL pointers on its own - there's no
reason to do an explicit check before calling the function.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

A large cs->count from userspace may overflow the allocation size,
leading to memory corruption.  try_set_ext_ctrls() can be reached
from subdev_do_ioctl() or __video_do_ioctl().

Use kmalloc_array() to avoid the overflow.
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

A large cs->count from userspace may overflow the allocation size,
leading to memory corruption.  v4l2_g_ext_ctrls() can be reached
from subdev_do_ioctl() or __video_do_ioctl().

Use kmalloc_array() to avoid the overflow.
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The default_value for the Bt878 V4L2_CID_CONTRAST control is currently
set to 32768. Internally this gets translated to an analog input
circuit gain of 1.19. However, the default gain should be 1.0. This
patch alters the default value to 27648 which corresponds to a gain of
1.0. It also alters the probe routine so that the correct value is
written on board initialisation.

[mchehab@redhat.com: behavior confirmed via Fusion 878a datasheet]
Signed-off-by: NAlan McIvor <alan.mcivor@reveal.co.nz>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add support for another Medion X10 remote. This was apparently
originally used with the Medion Digitainer box, but is now sold
separately without any Digitainer labeling.

A peculiarity of this remote is a scrollwheel in place of up/down
buttons. Each direction is mapped to 8 different scancodes, each
corresponding to 1..8 notches, allowing multiple notches to the same
direction to be transmitted in a single scancode. The driver transforms
the multi-notch scancodes to multiple events of the single-notch
scancode.
(0x70..0x77 = 1..8 notches down, 0x78..0x7f = 1..8 notches up)

Since the scrollwheel scancodes are the same that are used for mouse on
some other X10 (ati_remote) remotes, the driver will now check whether
the active keymap has a keycode defined for the single-notch scancode
when a mouse/scrollwheel scancode (0x70..0x7f) is received. If set,
scrollwheel is assumed, otherwise mouse is assumed.

This remote ships with a different receiver than the already supported
Medion X10 remote, but they share the same USB ID. The only difference
in the USB descriptors is that the Digitainer receiver has the Remote
Wakeup bit set in bmAttributes of the Configuration Descriptor.
Therefore that is used to select the default keymap.

Thanks to Stephan Raue from OpenELEC (www.openelec.tv) for providing me
both a Medion X10 Digitainer remote+receiver and an already supported
Medion X10 remote+receiver. Thanks to Martin Beyss for providing some
useful information about the remote (including the "Digitainer" name).
This patch has been tested by both of them and myself.
Signed-off-by: NAnssi Hannula <anssi.hannula@iki.fi>
Tested-by: NStephan Raue <stephan@openelec.tv>
Tested-by: NMartin Beyss <Martin.Beyss@rwth-aachen.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Currently the ati_remote default keymap is selected directly based on
the USB device id.

Add support for instead specifying a function returning the default
keymap, allowing more complex selection logic to be added when needed.

This will be used for Medion X10 remotes in a following commit.
Signed-off-by: NAnssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

As long as there is no other non-const variable marked __initdata in the
same compilation unit it doesn't hurt. If there were one however
compilation would fail with

	error: $variablename causes a section type conflict

because a section containing const variables is marked read only and so
cannot contain non-const variables.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomasz Stanislawski <t.stanislaws@samsung.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-media@vger.kernel.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch contains code change only to remove redundant
code to set priv->crop_rect.width/height in probe function.
Signed-off-by: NLiu Ying <Ying.Liu@freescale.com>
Acked-by: NChris Lalancette <clalancette@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
[mchehab@redhat.com: Changed the default to follow the em28xx selection]
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This functions are no longer used from another file,
so they should be declared as static.
Also is it necessary to move some of them before they
are used, since they are no longer header-declared.
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This function is only used in em28xx-input.c so it
makes no sense to have it anywhere but in em28xx-input.c.
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Moving this helps isolating em28xx_input and will help
converting it into a separate module.
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Those functions will be needed by em28xx-input module, to be
added on the next patches.
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

dev->ctl_input() is always set before a call to video_mux(),
but then video_mux() sets it again with the same value.
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add PnP support to radio-gemtek for AOpen FX-3D/Pro Radio card
(AD1816 + Gemtek radio).
Signed-off-by: NOndrej Zary <linux@rainbow-software.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add PnP support to the new ISA radio framework.
Signed-off-by: NOndrej Zary <linux@rainbow-software.org>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Get rid of several unused parameters in struct em28xx_usb_isoc_ctl.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Stop the URBs in em28xx_stop_streaming(), so that em28xx_irq_callback()
cannot be called after the streaming has stopped.

This should eliminate the crashes reported by Antti Palosaari and the warnings
reported by Andy Furniss.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NKonstantin Khlebnikov <khlebnikov@openvz.org>
Cc: linux-media@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: "Arve Hjønnevåg" <arve@android.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

copy_in_user() already checks for write permission, so we don't need to
do it here.  This was added in 1a5e4c86 "[media] uvcvideo: Implement
compat_ioctl32 for custom ioctls".
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch removes BUG_ON in ir_raw_event_thread which IMO is a
over-kill, and this kills the ir_raw_event_thread too. With a bit of
additional logic in this patch, we nomore need to kill this thread.
Other disadvantage of having a BUG-ON is,
wake_up_process(dev->raw->thread) called on dead thread via
ir_raw_event_handle will result in total lockup in SMP system.

Advantage of this patch is ir-raw event thread is left in a usable state
even if the fifo does not have enough bytes.

This patch sets the thread into TASK_INTERRUPTIBLE if raw-fifo has less
then sizeof(struct ir_raw_event) bytes.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>