There is now new tuner types which are not handled on that switch-case.
Print error if unknown tuner type is meet.

drivers/media/tuners/tuner-xc2028.c: In function ‘generic_set_freq’:
drivers/media/tuners/tuner-xc2028.c:1037:2: warning: enumeration value ‘V4L2_TUNER_ADC’ not handled in switch [-Wswitch]
  switch (new_type) {
  ^
drivers/media/tuners/tuner-xc2028.c:1037:2: warning: enumeration value ‘V4L2_TUNER_RF’ not handled in switch [-Wswitch]

Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Some previous patch introduced this bug:

/devel/v4l/patchwork/Documentation/DocBook/controls.xml:2262: parser error : attributes construct error
	      <row id=""v4l2-mpeg-video-hor-search-range">
	                ^
/devel/v4l/patchwork/Documentation/DocBook/controls.xml:2262: parser error : Couldn't find end of Start Tag row line 2262
	      <row id=""v4l2-mpeg-video-hor-search-range">
	                ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add SDR to V3.15 revlist, and add the credits to Antti.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add SDR device type to v4l2-framework.txt document.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Let it be experimental still as all SDR drivers are in staging.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Document V4L2 SDR interface.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Update documentation to reflect 1 Hz frequency step flag.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Modulator ioctls could be enabled mistakenly for non-radio devices.
Currently those ioctls are only valid for radio. Fix it.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

VIDIOC_QUERYCAP IOCTL is used to query device capabilities. Add new
capability flag to inform given device supports SDR capture.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Enable stream format (FMT) IOCTLs for SDR use. These are used for negotiate
used data stream format.

Reorganise some some IOCTL selection logic.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Use own format ops for SDR data:
vidioc_enum_fmt_sdr_cap
vidioc_g_fmt_sdr_cap
vidioc_s_fmt_sdr_cap
vidioc_try_fmt_sdr_cap
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add new V4L2 stream format definition, V4L2_BUF_TYPE_SDR_CAPTURE,
for SDR receiver.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add V4L2_TUNER_CAP_1HZ for 1 Hz resolution.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Define tuner types V4L2_TUNER_ADC and V4L2_TUNER_RF for SDR usage.

ADC is used for setting sampling rate (sampling frequency) to SDR
device.

Another tuner type, named as V4L2_TUNER_RF, is possible RF tuner.
Is is used to down-convert RF frequency to range ADC could sample.
Having RF tuner is optional, whilst in practice it is almost always
there.

Also add checks to VIDIOC_G_FREQUENCY, VIDIOC_S_FREQUENCY and
VIDIOC_ENUM_FREQ_BANDS only allow these two tuner types when device
type is SDR (VFL_TYPE_SDR). For VIDIOC_G_FREQUENCY we do not check
tuner type, instead override type with V4L2_TUNER_ADC in every
case (requested by Hans in order to keep functionality in line with
existing tuners and existing API does not specify it).

Prohibit VIDIOC_S_HW_FREQ_SEEK explicitly when device type is SDR,
as device cannot do hardware seek without a hardware demodulator.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add new V4L device type VFL_TYPE_SDR for Software Defined Radio.
It is registered as /dev/swradio0 (/dev/sdr0 was already reserved).
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add new video4linux device named /dev/swradio for Software Defined
Radio use. V4L device minor numbers are allocated dynamically
nowadays, but there is still configuration option for old fixed style.
Add note to mention that configuration option too.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This device has a led at bit 7 of GPIO reg. 0x80 to indicate
when a DVB capture is happening.

Add support for it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Some devices have a LED to indicate when DVB capture started.
Add support for it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This device is close to Kworld UB435-Q, but it uses a different
tuner. Add support for it.

Tested with both 8VSB and 256QAM modulations.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

tda18272 is programmed just like tda18212, but it also
supports ClearQAM and ATSC.

Add support for them. Tested with a Kworld UB435-Q on both
8VSB and 256QAM modes.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Some boards got added there. Update the cardlist to reflect the
current status.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Some new boards got added. Update the cardlist.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Currently, there's just one device using this frontend: PCTV 80e,
and it works on serial mode.

Change the default here to serial mode. If we add more devices,
then this option should be set via config structure.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The cfg_mpeg_output has more fields than what it is initialized
when the code is called. Be sure to initialize everything before
use, in order to avoid random behaviors.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Just like the windows driver, disable OOB after setting the driver
version.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

DJH_DEBUG only code path in drxbsp_i2c_write_read() dereferences
w_dev_addr and subsequently w_dev_addr->user_data->i2c which results
in failure during boot. This patch fixes the null pointer derefence
bug as well as the following compile errors:

  LD      arch/x86/built-in.o
  CC      drivers/media/dvb-frontends/drx39xyj/drxj.o
drivers/media/dvb-frontends/drx39xyj/drxj.c: In function ‘drxbsp_i2c_write_read’:
drivers/media/dvb-frontends/drx39xyj/drxj.c:1558:25: error: redeclaration of ‘state’ with no linkage
  struct drx39xxj_state *state = w_dev_addr->user_data;
                         ^
drivers/media/dvb-frontends/drx39xyj/drxj.c:1512:25: note: previous declaration of ‘state’ was here
  struct drx39xxj_state *state;
                         ^
drivers/media/dvb-frontends/drx39xyj/drxj.c:1558:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
  struct drx39xxj_state *state = w_dev_addr->user_data;
  ^
drivers/media/dvb-frontends/drx39xyj/drxj.c:1560:17: error: redeclaration of ‘msg’ with no linkage
  struct i2c_msg msg[2] = {
                 ^
drivers/media/dvb-frontends/drx39xyj/drxj.c:1513:17: note: previous declaration of ‘msg’ was here
  struct i2c_msg msg[2];
                 ^
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drxbsp_i2c_write_read() has return that prevents DJH_DEBUG code to run.
Remove it.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drxj.c fails to compile with the following errors when DJH_DEBUG
is defined.

drivers/media/dvb-frontends/drx39xyj/drxj.c:1567:2: error: implicit declaration of function ‘pr_dbg’ [-Werror=implicit-function-declaration]
  pr_dbg("drx3933 i2c operation addr=%x i2c=%p, wc=%x rc=%x\n",
  ^
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Mimic what windows driver does here: it writes 0x07 to
SIO_CC_SOFT_RST__A, instead of just 0x03.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

As drxj_close puts the device in powerdown, we need to power it up
properly at drxj_open.

This is the behavior noticed at the Windows driver.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

There are no other I2C masters here. Also, the Windows driver uses
this mode (and both drxd and drxk Kernel drivers). So, switch
to it.

That helps to compare the logs between the Linux driver and the
Windows one.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Instead of just disabling the LNA every time, allow to control it from
userspace.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

On several places, the I2C functions are just wrappers to others.

Get rid of it.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This struct contains the first abstraction layer for the I2C
access routines. Get rid of it.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This file contains an abstract layer for the I2C transfer
functions. Get rid of it, merging it at drxj. This will allow
to remove another abstraction layer there, making the code
easier to read, and removing the functions that just return
-EIO.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Reorder functions and data at drx_dap_fasi.c, in order to avoid
having function prototypes.

This is in preparation to merge this code inside drxj, removing
some duplicated bits there, and getting rid of yet another
abstraction layer.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This is not used anywere. Get rid of it.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

QAM/256 currently doesn't work, as the code is only called if
channel->mirror is DRX_MIRROR_AUTO, but a prevous if prevents
this condition to happen.

While here, returns -EINVAL to not supported QAM modes and
simplify the code, reducing the number of indents.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Those struct data aren't used anymore. Get rid of them.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Checking if a time is after another one can have issues, as
times are generally u32 wide.

Use the proper macros for that at scu_command().

It should be noticed that other places also use jiffies
calculus on an improper way. This should be fixed too,
but the logic there is more complex. So, let's do it in
separate patches.
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>