Add driver for TV Mixer on Samsung platforms from S5P family.
Mixer is responsible for merging images from three layers and
passing result to the output.

Drivers are using:
- v4l2 framework
- videobuf2
- runtime PM
Signed-off-by: NTomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add drivers for Standard Definition output (SDO) on Samsung platforms
from S5P family. The driver provides control over streaming analog TV
via Composite connector.

Driver is using:
- v4l2 framework
- runtime PM
Signed-off-by: NTomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add drivers for HDMI outputs on Samsung platforms from S5P family.

Drivers are using:
- v4l2 framework
- runtime PM
Signed-off-by: NTomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The cx88 driver would force core->input to always be zero when doing the
the request_acquire().  While it wasn't actually changing the input register
in the hardware, the driver makes decision based on the current input.  In
particular, it decides whether to do things like enabling the comb filter
when on a composite input but disabling it on s-video.  So for example, on
the HVR-1300, using the s-video input with the MPEG encoder would end up with
the video decoder core configured as though the input type were composite.

In short, the driver state did not match the hardware state.

This patch does two things:

1.  It forces the input to zero only if actually switching to DVB mode.  This
prevents the input from changing when the blackbird driver opens the device.

2.  Keep track of what the input was set to when switching to DVB, and reset
it back when done.  This eliminates a condition where for example the user
had the analog side of the board set to capture on the s-video input, then
he used DVB for a bit, then the analog input would unexpectedly be set to
the tuner input.

This work was sponsored by Anevia S.A.
Signed-off-by: NDevin Heitmueller <dheitmueller@kernellabs.com>
Cc: Florent Audebert <florent.audebert@anevia.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Multi Format Codec 5.1 is a hardware video coding acceleration
module found in the S5PV210 and Exynos4 Samsung SoCs. It is
capable of handling a range of video codecs and this driver
provides a V4L2 interface for video decoding and encoding.
Signed-off-by: NKamil Debski <k.debski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Cc: Jeongtae Park <jtp.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Clear the cx231xx_devused variable and free dev in the error handling code,
as done in the error handling code nearby.

The semantic match that finds this problem is as follows:

// <smpl>
@r@
identifier x;
@@

kfree(x)

@@
identifier r.x;
expression E1!=0,E2,E3,E4;
statement S;
@@

(
if (<+...x...+>) S
|
if (...) { ... when != kfree(x)
               when != if (...) { ... kfree(x); ... }
               when != x = E3
* return E1;
}
... when != x = E2
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Free the recently allocated qcam in each case.

The semantic match that finds this problem is as follows:

// <smpl>
@r@
identifier x;
@@

kfree(x)

@@
identifier r.x;
expression E1!=0,E2,E3,E4;
statement S;
@@

(
if (<+...x...+>) S
|
if (...) { ... when != kfree(x)
               when != if (...) { ... kfree(x); ... }
               when != x = E3
* return E1;
}
... when != x = E2
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch, based on code by Mirek Slugen, implements support for the
Leadtek WinFast PxDVR3200 H card with XC4000 tuner (107d:6f39).
Signed-off-by: NIstvan Varga <istvan_v@mailbox.hu>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Make sure that the 'static' keywork is at the beginning of declaration
for drivers/media/video/omap/omap_vout.c

This gets rid of warnings like
when building with -Wold-style-declaration (and/or -Wextra which also
enables it).
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Delete a couple of leftover fields whose time has passed.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The Marvell camera core can support all three videobuf2 buffer modes, which
is slick, but it also requires that all three modes be built and present,
even though only one is likely to be used.  This patch allows the supported
modes to be selected at configuration time, reducing the footprint of the
driver.  Prior to this patch, the MMP camera driver looked like this:

mmp_camera             19092  0
videobuf2_core         15542  1 mmp_camera
videobuf2_dma_sg        3173  1 mmp_camera
videobuf2_dma_contig     2188  1 mmp_camera
videobuf2_vmalloc       1718  1 mmp_camera
videobuf2_memops        2100  3 videobuf2_dma_sg,videobuf2_dma_contig,videobuf2_vmalloc

Afterward, instead, with scatter/gather only configured:

mmp_camera             16021  0
videobuf2_core         15542  1 mmp_camera
videobuf2_dma_sg        3173  1 mmp_camera
videobuf2_memops        2100  1 videobuf2_dma_sg

The total goes from 43,813 bytes to 36,836.

The emphasis has been on simplicity and minimal #ifdef use rather than on
squeezing out every possible byte of code.  For configuration, the driver
simply looks at which videobuf2 modes have been configured in and supports
them all; it's simplistic but should be good enough.

The cafe driver is set to support vmalloc and dma-contig; mmp supports only
dma-sg, since that's the only mode that really makes sense to use.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

If registration does not work, we don't want to leave the sensor powered on.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Somewhere along the way the code stopped actually paying any attention to
them, and I doubt anybody has ever made use of them.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This code shows signs of having been mucked with over the last five years
or so; things were kind of mixed up.  This patch reorders functions into a
more rational organization which, with luck, will facilitate making the
buffer modes selectable at configuration time.  Code movement only: no
functional changes here.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This structure got passed over in the videobuf2 conversion; it has no
reason to exist now.
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Based on the work of John Newbigin, Davor Emard and others who contributed
on the mailing lists.

The previous 'support' for this card was a partial merge of John's changes
that, as far as I can tell, never actually got the thing working (no DVB-T,
analog tuner not initialised).

Initialise the analog tuner properly and hook up the DVB tuner and demodulator.

DVB-T and analog now work (though I can't tune every DVB channel, but I think
there's an issue with the aerial and signal boosters here that is causing
me problems).
Signed-off-by: NCarlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use a name convention for the firmware file that matches on the
current firmware namespacing. Also, add it to the firmware
download script.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

On em28xx, tda18271C2 is accessible when the i2c port
is not touched. Touching on it breaks the driver.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

All I2C logs we got for em28xx does that. With Terratec H5, at
400MHz speed, it seems that this is required, to avoid having
troubles at the I2C bus.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The microcode firmware provided on Terratec H5 seems to be
different. Add a parameter to allow specifying a different
firmware per-device.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Not working yet. There are some fixes at the DRX-K that are needed
for it to work.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add support for the codec controls to the v4l2 control framework.

[mchehab@redhat.com: Fix merge conflicts and removed some hunks that were
 adding blank lines without a good reason]
Signed-off-by: NKamil Debski <k.debski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch adds the driver for the adp1653 LED flash controller. This
controller supports a high power led in flash and torch modes and an
indicator light, sometimes also called privacy light.

The adp1653 is used on the Nokia N900.
Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NTuukka Toivonen <tuukkat76@gmail.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NDavid Cohen <dacohen@gmail.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add a control class and a set of controls to support LED and Xenon flash
devices. An example of such a device is the adp1653.
Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix sleep-in-atomic-context bug in vivi:

Jun 28 18:14:39 tschai kernel: [   80.970478] BUG: sleeping function called from invalid context at kernel/mutex.c:271
Jun 28 18:14:39 tschai kernel: [   80.970483] in_atomic(): 0, irqs_disabled(): 1, pid: 2854, name: vivi-000
Jun 28 18:14:39 tschai kernel: [   80.970485] INFO: lockdep is turned off.
Jun 28 18:14:39 tschai kernel: [   80.970486] irq event stamp: 0
Jun 28 18:14:39 tschai kernel: [   80.970487] hardirqs last  enabled at (0): [<          (null)>]           (null)
Jun 28 18:14:39 tschai kernel: [   80.970490] hardirqs last disabled at (0): [<ffffffff8109a90b>] copy_process+0x61b/0x1440
Jun 28 18:14:39 tschai kernel: [   80.970495] softirqs last  enabled at (0): [<ffffffff8109a90b>] copy_process+0x61b/0x1440
Jun 28 18:14:39 tschai kernel: [   80.970498] softirqs last disabled at (0): [<          (null)>]           (null)
Jun 28 18:14:39 tschai kernel: [   80.970502] Pid: 2854, comm: vivi-000 Tainted: P            3.0.0-rc1-tschai #372
Jun 28 18:14:39 tschai kernel: [   80.970504] Call Trace:
Jun 28 18:14:39 tschai kernel: [   80.970509]  [<ffffffff81089be3>] __might_sleep+0xf3/0x130
Jun 28 18:14:39 tschai kernel: [   80.970512]  [<ffffffff8176967f>] mutex_lock_nested+0x2f/0x60
Jun 28 18:14:39 tschai kernel: [   80.970517]  [<ffffffffa0acee3e>] vivi_fillbuff+0x20e/0x3f0 [vivi]
Jun 28 18:14:39 tschai kernel: [   80.970520]  [<ffffffff81407004>] ? do_raw_spin_lock+0x54/0x150
Jun 28 18:14:39 tschai kernel: [   80.970524]  [<ffffffff8104ef5e>] ? read_tsc+0xe/0x20
Jun 28 18:14:39 tschai kernel: [   80.970528]  [<ffffffff810c9d87>] ? getnstimeofday+0x57/0xe0
Jun 28 18:14:39 tschai kernel: [   80.970531]  [<ffffffffa0acf1b1>] vivi_thread+0x191/0x2f0 [vivi]
Jun 28 18:14:39 tschai kernel: [   80.970534]  [<ffffffff81093aa0>] ? try_to_wake_up+0x2d0/0x2d0
Jun 28 18:14:39 tschai kernel: [   80.970537]  [<ffffffffa0acf020>] ? vivi_fillbuff+0x3f0/0x3f0 [vivi]
Jun 28 18:14:39 tschai kernel: [   80.970541]  [<ffffffff810bff46>] kthread+0xb6/0xc0
Jun 28 18:14:39 tschai kernel: [   80.970544]  [<ffffffff817743e4>] kernel_thread_helper+0x4/0x10
Jun 28 18:14:39 tschai kernel: [   80.970547]  [<ffffffff8176b4d4>] ? retint_restore_args+0x13/0x13
Jun 28 18:14:39 tschai kernel: [   80.970550]  [<ffffffff810bfe90>] ? __init_kthread_worker+0x70/0x70
Jun 28 18:14:39 tschai kernel: [   80.970552]  [<ffffffff817743e0>] ? gs_change+0x13/0x13

This bug was introduced in 2.6.39.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

By default no control events are sent to the application that caused the
control value or flags change (i.e. the control(s) passed to VIDIOC_S_CTRL
or VIDIOC_S_EXT_CTRLS). But if a change in one control causes a change in
another control that was not part of the control(s) in VIDIOC_S_CTRL or
S_EXT_CTRLS, then the application should be notified.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The new values were never copied to userspace due to this copy and paste
error. This was introduced during the rewrite of this part of the code in
commit 3219f8a362640b7e4b7e2187b1094c4e46d85aa0.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove unused pwc-ioctl.h (the copy in include/media is used everywhere)
Remove almost empty pwc-uncompress.h, move single define to pwc.h
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This makes the API for this:
1) v4l2 spec compliant
2) match that of the UVC Logitech QuickCam Sphere models

For now this operates in parellel to the sysfs interface for this, but the
intend is to deprecate the sysfs interface and remove it.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Also remove all the converting from native range to 0-65535 and back
that was going on. This is no longer needed now that we no longer support
v4l1.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Allow multiple opens of the /dev/video node so that control panel apps
can be open to-gether with streaming apps.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Doing a bunch of initialization every time /dev/video is opened, and thus
for example when the udev rules probe for capabilities makes no sense,
do it at driver load, resp. stream start instead.

This is a preparation patch for allowing multiple opens of the /dev/video
node.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

  as vcinterface must be set before calling pwc_camera_power()
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>