Some video decoders such as tvp5150 provide separate
video fields (V4L2_FIELD_SEQ_TB/BT). This driver uses
dmaengine to convert this format to V4L2_FIELD_INTERLACED_TB/BT
(weaving) or V4L2_FIELD_NONE (line doubling) so that the
image can be displayed or processed.

Of course there will be combing effect in the image but this
can be accepted for some low quality applications.

Currently only YUV420 and YUYV formats are supported but
it can be extended later.
Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Support the codadx6 that is included in
the i.MX27 SoC.
Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Coda is a range of video codecs from Chips&Media that
support H.264, H.263, MPEG4 and other video standards.

Currently only support for the codadx6 included in the
i.MX27 SoC is added. H.264 and MPEG4 video encoding
are the only supported capabilities by now.

[mchehab@redhat.com: Add missing include linux/of.h]
Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com>
Reviewed-by: Philipp Zabel<p.zabel@pengutronix.de>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

i.MX27 SoC include a codadx6 codec that is able to encode
and decode H.264, H.263 and MPEG4.
Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

While this header were meant to be used just by dvb-usb driver, it
is now being used also by dvb-usb-v2 and cx231xx. So, move it to a
better place.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

1)
AF9015 remote controller query will fail rarely due to register
access failures and dvb_usb_v2 will stop rc polling when error
returned. Add logic to allow errors until two consecutive errors
occurs.

2)
Remote controller key map was not loaded in case of key map was set as
a device property. Fix it.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Move to own directory.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

It failed to register device when remote keymap was not set.
Fix it to register device even keymap is NULL. In that case
just skip remote registration.

Driver should set RC_MAP_EMPTY to enable remote in case of
there is remote receiver but default keymap is unknown.
Reported-by: Npierigno <pierigno@gmail.com>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

It works no longer as it was designed since we can change streaming
configuration during device operation.

Maybe it should be performed conditionally on cases when streaming
endpoint is changed. Anyhow, let it out now and add later if needed.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Check that adapter exists before trying to remove it.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Pass frontend instead of adapter as some drivers need to make
decisions based frontend.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Cc: Patrick Boettcher <patrick.boettcher@desy.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

It was left from the legacy remote controller we do not support.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Comment briefly all used structures and variables.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Naming, small code changes, debug writings, etc.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

It is nice to have this debug, but as it generates very huge amount
of traffic, better to make it conditional. Use define macro to disable
it as I did not find out how to use dynamic debugs to dump variable
length buffers like that.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Merge files dvb_usb_init.c and dvb_usb_dvb.c to dvb_usb_core.c.
It is still under 1000 lines of code after all the optimization
so put it one file.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

We can live easily without it so remove it, make code and binary
few bytes smaller.

>From struct dvb_usb_device variable int num_adapters_initialized.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Merge get_firmware_name() to identify_state().

It is wise to resolve firmware name in that routine as it does
decision wether or not to load firmware at all. It is one very
rarely needed callback less.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Piggypag TS type callback to USB stream callback and change
callback name slightly to fit better.
Both of those are rather rare callback and has a relation. Transport
Stream, TS, is input stream and USB stream is output stream of
DVB USB bridge.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

We dont need that pointer as we can use container_of() macro thus
remove it.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

We can live without it easily.

Also USB data stream complete callback checks for feedcount
seems to be quite redundant so remove those also.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

There was synchronization problem when streaming was stopped.
Frontend was ran down before stream which causes problems.
Use mutex to synchronization. Now it looks like that:
LOCK
start frontend
UNLOCK
LOCK
start streaming
[...]
stop streaming
UNLOCK
LOCK
stop frontend
UNLOCK
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Initial / default USB stream configuration is now set always as a
dvb_usb_device_properties. Dynamic configuration is done top of
that if callback .get_usb_stream_config() exists. Default values
are set when callback is called so callback needs only change
values that are different than default.

In addition of that define two macros DVB_USB_STREAM_BULK() and
DVB_USB_STREAM_ISOC() for filling struct usb_data_stream_properties
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>