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>

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

Implement the get_frontend function.
The code is derived from the old af9033 driver by Antti Palosaari.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add basic support for the tda18218 tuner and the AVerMedia A835 devices.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Support of AVerMedia AVerTV HD Volar, with tuner MxL5007t.
Signed-off-by: NHans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This adds Fitipower fc0011 tuner support to the af9035 driver.
Signed-off-by: NMichael Buesch <m@bues.ch>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Supports currently only 12 MHz Xtals. It is better to print log
and not to attach frontend in that case.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Returns values as 0.1 dB resolution as preferred nowadays.
Actual resolution is 1 dB.
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>

stb0899: fix the limits for signal strength values

stb0899_read_signal_strength() adds an offset to the result of the table lookup.
That offset must correspond to the lowest value in the lookup table, to make sure
the result doesn't get below 0, which would mean a "very high" value since the
parameter is unsigned.
'strength' and 'snr' need to be initialized to 0 to make sure they have a
defined result in case there is no "internal->lock".
Signed-off-by: NKlaus Schmidinger <Klaus.Schmidinger@tvdr.de>
Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove incorrect SEC_MINI_B settings-TODO complete this section.

Correct break and remove return -EINVAL within set tone. It appears
there is a bug that occasionally something other than ON/OFF is
sent stalling the driver. Just continue and write back registers.

Set register b2 in setup. This is the set voltage pin which
isn't used in lmedm04 driver but it is always set to 0x1.

Correct the if statements in set_tuner_rf.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The au8522 driver programs the tuner after programming the demodulator,
but the tuner should be programmed first. This patch fixes this behavior.

EDIT: Apparantly Devin created a similar patch some time ago, but hasn't
submitted it for merge.  I never saw his patch, but I thank him anyhow
for his efforts.  In addition, Devin pointed out a flaw in my patch:

This newly generated patch takes Devin's comments into account.

Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Cc: stable@kernel.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This field is handled internally by the DVB core, with uses the
selected delivery system to fill it, when a DVBv3 call is
handled. So, drivers should not touch on it.

Cc: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Support for m88rs2000 chip used in lmedm04 driver.

Note there are still lock problems.

Slow channel change due to the large block of registers sent in set_frontend.

Version 2 differences.
Front end is completely shut down when in sleep mode. This allow user to regain
control of device.
Kaffeine scan problem solved by removing register calls from get_frontend.
Kaffeine seems to call get_frontend when updating signal data. This can happen
in the middle of a tune stalling the driver.
Change calculations to those in the DS3000 driver.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

In CDRXD(), Negative number is assigned to unsigned variable
'state->noise_cal.tdCal2.

Members of 'SNoiseCal' should be 'signed short'.
Signed-off-by: NSantosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

DibAcquireLock() is implemented as mutex_lock_interruptible()
but the driver does not handle unsuccessful locking.
As a result it may lead to unlock of an unheld mutex.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

There are several error paths, where &state->platform.risc.mem_mbx_lock
is not unlocked. The patch fixes it.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The current delay of 30uS is too short to recover any carrier.

In the lmedm04 driver delays were added to overcome carrier lock
problems. The typical delay was 30mS (2 x 15ms register write
0x2c and read 0x24).

Other drivers that use STV0288 don't appear to have any delay are
likely to have also suffered this problem.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

When reading IF_AGC_GAIN register a wrong value for the base address
register was used (STB0899_DEMOD instead of STB0899_S2DEMOD). That
lead to a wrong signal strength value on DVB-S2 transponders.
Signed-off-by: NAndreas Regel <andreas.regel@gmx.de>
Acked-by: NKlaus Schmidinger <Klaus.Schmidinger@tvdr.de>
Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

In stb0899_read_status the FE_HAS_SIGNAL flag was not set in case of a
successful carrier lock. This change fixes that.
Signed-off-by: NAndreas Regel <andreas.regel@gmx.de>
Acked-by: NKlaus Schmidinger <Klaus.Schmidinger@tvdr.de>
Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Commit b2a29b57 sets accidentally
supported delivery systems as DVB-T/T2 whilst it should be
DVB-S/S2. Due to that frontend cannot be used at all.
Reported-by: NJiří Zelenka <klacek@bubakov.net>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Cc: stable@kernel.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Commit b2a29b57 sets accidentally
supported delivery systems as DVB-T/T2 whilst it should be
DVB-S/S2. Due to that frontend cannot be used at all.
Reported-by: NJiří Zelenka <klacek@bubakov.net>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

One semi-colon is enough.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Without this we have got the warnings like following if build with "make W=1
O=/var/tmp":
  cc1: warning: drivers/media/dvb/dvb-core: No such file or directory [enabled by default]
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The error handling in lgdt3303_read_status() and lgdt330x_read_ucblocks()
doesn't work, because i2c_read_demod_bytes() returns a u8 and (err < 0)
is always false.

        err = i2c_read_demod_bytes(state, 0x58, buf, 1);
        if (err < 0)
                return err;

Change the return type of i2c_read_demod_bytes() to int.  Also change
the return value on error to -EIO to make (err < 0) work.
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The signal strength value returned is not quite correct, it decreases
when I increase the gain of my antenna, and vice versa. It also
doesn't span over the whole 0x0000-0xffff range. Compute a value which
at least increases when signal strength increases, and spans the whole
allowed range.

In practice I get 67% with my antenna fully amplified and 51% with
no amplification. This is close enough to what I get on my other
DVB-T adapter with the same antenna.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Read signal strength using VAR_P_INBAND and apply FEC preferred values.

Note this does not work on IT9137 devices even with dvb-usb-it9135-01.fw
firmware.

Config read_sl allows switch between read signal strength and signal
level.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch converts the drivers in drivers/media/* to use the
module_i2_driver() macro which makes the code smaller and a bit simpler.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Heungjun Kim <riverful.kim@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Andrew Chew <achew@nvidia.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: Johannes Obermaier <johannes.obermaier@gmail.com>
Cc: Steven Toth <stoth@kernellabs.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: NTomasz Stanislawski <t.stanislaws@samsung.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Il 29/02/2012 22:30, Geert Uytterhoeven ha scritto:
> http://kisskb.ellerman.id.au/kisskb/buildresult/5759200/ ERROR:
> "__udivdi3" [drivers/media/dvb/frontends/rtl2830.ko] undefined!
>
The following patch fixed the warning on my 32 bit system.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Hardware is not accessible when device is sleeping.
Preventing such IOCTLs when sleep should be job of DVB CORE...
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Implement I2C functionality according to real RTL2830 demod.

Do not send register page in first byte of each I2C write, instead
use logic to set page using own write when needed. Page register is
physical register 0 as generally used.
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>

Correct spelling "alocate" to "allocate" in
drivers/media/dvb/frontends/tda1004x.c
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

DVB-T also use step_size=0.
Signed-off-by: NJose Alberto Reguero <jareguero@telefonica.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Correct spelling "alocate" to "allocate" in
drivers/media/dvb/frontends/tda1004x.c
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch removes the unneeded include.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch removes the unneeded include.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix bug introduced by multi-frontend to single-frontend change.
It is safer to put DVB-T parts sleeping when auto-switching to DVB-T2
and vice versa. That was original behaviour.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fix bug introduced by multi-frontend to single-frontend change.
This parameter is no longer used after multi-frontend to single-frontend change.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>