cx18: Have CX23418 release buffers at end of capture.  The CX23418 reuses task
handles so we need to have it release the buffers associated with a task handle
at the end of a capture.  If we don't, buffer ids used for one type of stream
in the driver (MPEG, TS, PCM), could be used for another type of stream by the
CX23418, if a previously used handle is assigned to a different type of stream.
The driver would drop valid buffers when this happened.
Signed-off-by: NAndy Walls <awalls@radix.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

cx18: Fix cx18_find_handle() and add error checking.  cx18_find_handle() did
not find a good task handle and would use the invalid task handle under common
conditions.  Added a define for the invalid task handle and added error checking
as well.
Signed-off-by: NAndy Walls <awalls@radix.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

cx18: Convert cx18_queue buffers member to atomic_t.  This allows safe
concurrent access to check if a queue has data without having to acquire the
queue spinlock.
Signed-off-by: NAndy Walls <awalls@radix.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

cx18: Remove redundant struct cx18_queue length member. It can be trivially
computed from queue->buffers * stream->buf_size, if ever really needed.
Signed-off-by: NAndy Walls <awalls@radix.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

cx18: get rid of ununsed buffers stolen field.  It's an unused holdover
from ivtv.
Signed-off-by: NAndy Walls <awalls@radix.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

When a suspended device has been reset instead of being resumed, USB core
calls the reset_resume method if available instead of unbinding and rebinding
the device.

This patch implements reset_resume by reusing the current resume
implementation and simplifies the resume method by skipping the controls
restore stage. Resuming from autosuspend should be faster.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix for reloading firmware when removing and reloading driver
Handshaking for firmware loading and changing modes.
Removes the restriction of one user per channel at a time.
JPEG capture mode added.
Signed-off-by: NDean Anderson <dean@sensoray.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Better check the video_device pointer before using it.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The return vaule of the probe function should return -ENOMEM instead
of -EBUSY if video_device_alloc() fails.
Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

___swab32 is an internal detail of the implementation.
Acked-by: NMike Isely <isely@pobox.com>
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Count the users and do not use video_exclusive_open() anymore.
Signed-off-by: NAntoine Jacquet <royale@zerezo.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove the Big Kernel Lock from zr364xx driver after pushdown.
Now using an internal locking mecanism on open().
Signed-off-by: NAntoine Jacquet <royale@zerezo.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.

An extract of the semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

@depends on haskernel@
expression n,d;
@@

(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)

@depends on haskernel@
expression n,d;
@@

- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)

@depends on haskernel@
expression n,d;
@@

- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This driver is for VERY old i2c-over-parallel port teletext receiver
boxes. Rather then spending effort on converting this driver to V4L2,
and since it is extremely unlikely that anyone still uses one of these
devices, it was decided to drop it (after discussing this as well with
the original author, Phil Blundell).
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NPhil Blundell <philb@gnu.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Old driver for the dpc7146 demonstration board that is no longer
relevant. The last time this was tested on actual hardware was
probably around 2002. Since this is a driver for a demonstration
board the decision was made (after discussing this with the original
author, Michael Hunold) to remove it rather than spending a
lot of effort continually updating this driver to stay in sync
with the latest internal V4L2 or I2C API.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMichael Hunold <hunold@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Make .power and .reset callbacks per camera instead of per host, also move
their invocation to camera drivers.

.arch/arm/mach-pxa/include/mach/camera.h    |    2 -
Signed-off-by: NStefan Herbrechtsmeier <hbmeier@hni.uni-paderborn.de>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix a typo in Kconfig, simplify error checking, further minor cleanup.
Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NGuennadi Liakhovetski <g.iakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

i2c_smbus_write_word_data() returns 0 or a negative error, hence no need to
check for "> 0".
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Adds support for Micron MT9M111 camera chip, with basic
features :
 - view rectangle configurable
 - some output formats (bayer8, bayer10, rgb565, rgb555, ycbycr)
 - autoexposure
 - only highpower mode context used (ie. context B)

 create mode 100644 drivers/media/video/mt9m111.c
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/saa7134/saa7134-core.c:366: warning:
'saa7134_buffer_requeue' defined but not used
Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

If you can select AAC as audio encoder, then you should also be
able to set the bitrate. Add this missing control.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Code reduction. Tuner callback now assumes that tsport is passed as the void arg.
Signed-off-by: NSteven Toth <stoth@hauppauge.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

From Chris Pascoe <c.pascoe@itee.uq.edu.au>
Support IR remote on FusionHDTV DVB-T Dual Express
Signed-off-by: NSteven Toth <stoth@hauppauge.com>
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add support for the DViCO FusionHDTV DVB-T Dual Express card, based on
work by Chris Pascoe and Stephen Backway.
Signed-off-by: NSteven Toth <stoth@hauppauge.com>
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The Hauppauge HVR1400 and HVR1500 can now use the common cx23885 tuner
callback.
Signed-off-by: NSteven Toth <stoth@hauppauge.com>
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Tuners currently hook different things to the private pointer in their
callback function. Longer term we should make that private pointer
consistent, but for now separate out the guts of the cx23885 tuner callback
so we can reuse it.
Signed-off-by: NSteven Toth <stoth@hauppauge.com>
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

- add PCI dependency for btcx
- fix compile errors (doesn't like ';' at the end of a #if 0)
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The PMT table for AC3 audio is different.
Thanks to Dmitry Belimov for providing the table data.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Cleaned up the saa6752hs i2c driver.
Add AC-3 support.
Add VIDIOC_CHIP_IDENT support.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

v4l2_ctrl_query_menu_valid_items() makes it easy to handle control menus
that have a lot of invalid 'holes'. For example, many MPEG encoders only
support a limited subset of audio bitrates. In that case a driver can
specify an array listing the set of valid bitrates and pass that to
this function.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add function that returns the control name. Allows this to be used in
places where the normal v4l2_ctrl_query_fill() function cannot be
used (e.g. uvc).
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Some models of the saa6752hs support AC-3. Extend the API with the
necessary controls for AC-3.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Adds Advanced Audio Coding (AAC) and MPEG-4 Advanced Video Coding
(AVC/H.264) as audio/video codecs to the extended controls API.
Updates cx2341x driver to the new values.
Signed-off-by: NJanne Grunau <j@jannau.net>
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Thanks to Sistema Fenix (http://www.sistemafenix.com.br/) and CDI Brasil
(www.cdibrasil.com.br/) for sponsoring this development.
Signed-off-by: NGilberto <gilberto@sistemafenix.com.br>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Removes duplicated #include <v4l2-ioctl.h>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

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