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>

PT1 and PT2 do not have net functions.
Signed-off-by: NAkihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Current default value of "nr_tables" option corresponds to the DMA
buffer of about 10 to 48 seconds long, which is obviously too much.
Signed-off-by: NAkihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch adds a data integrity check using the sequence counter and
error flags added by the bridge chip.
Signed-off-by: NAkihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The driver started a kthread to poll the DMA buffers soon after probing,
which relsuleted in 1000/sec sleeps and wakeups of the thread doing nothing
useful until someone started feeding.
This patch changes the creation and destruction of the kthread depending on the number of users.
Signed-off-by: NAkihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

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

Support for m88rs2000 module.

The driver also attempts to overcome occasional lock problems.

Call backs are now used for read_status, signal level and SNR.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
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>

These were in the original lme2510 device driver.

Removing them significantly speeds up the driver.

All tuners tested.
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>

This patch add CI support to az6007 driver.
Signed-off-by: NJose Alberto Reguero <jareguero@telefonica.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove delays added for STV0288 frontend.

This patch significantly speeds up channel change and scan.

It requires patch 10161-STV0288 increase delay between carrier search.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
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>

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

Besides sticks with the usb id 14AA:0160, there exists also some
with 14AA:0161 - this is the output in /var/log/messages:

usb 1-1: new high-speed USB device number 2 using ehci_hcd
usb 1-1: New USB device found, idVendor=14aa, idProduct=0161
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: Freecom DVB-T
usb 1-1: Manufacturer: Freecom DVB-T
usb 1-1: SerialNumber: 00000000000036742

The patch is based on the code at
http://git.linuxtv.org/anttip/media_tree.git/shortlog/refs/heads/realtekSigned-off-by: NPaolo Pantò <munix9@googlemail.com>
Acked-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

In the get_frontend function, an internal copy of the dtv_frontend_properties
struct (which is never initialized) is copied over the frontend property cache
data structure, resetting everything to 0.
In particular, the delivery system is reset to 0 (which is an invalid value)
so the driver stops working as soon as a DVBv3 application calls the
get_frontend function, giving this error:

dvb_frontend_ioctl_legacy: doesn't know how to handle a DVBv3 call to delivery
system 0

This patch eliminates the unused internal copy of the dtv_frontend_properties
struct, and gives a proper implementation of the get_frontend function.

The original author of the patch is Panagiotis Malakoudis, who also tested
this new version on Ubuntu 11.10 with the latest media_build tree installed.
The original patch has been used on MIPS set-top-boxes for over one year,
but it was never posted on the linux-media list.
I ported the code to the current media_build tree (converting it to use the
dtv_frontend_properties struct) and added basic support for ISDB-T (untested).
Signed-off-by: NPanagiotis Malakoudis <malakudi@gmail.com>
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
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>

Allow PID 8192 to turn PID filter off in USB high speed.

The PID number is still written to the PID index and will only
turn on again if that index is set to 0.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Some virtual I2C commands are missed along some PID filtering
commands resulting complete stall of driver.

Since dvb-usb cannot handle the -EAGAIN error and commands
generally should not be missed mutex_lock is used instead.
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>

There are two issues on the default delivery system setting for smsusb:

	1) instead of filling the delivery system for the per-client
	   frontend.ops, it were changing the global structure;

	2) The client->frontend.ops copy were keeping the previous value
	   of the template. So, the first time the device was inserted,
	   it was using the wrong value.
Reported-by: NEddi De Pieri <eddi@depieri.net>
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>

* some style issues
* remove rtl2832u device IDs
* move USB IDs to correct place
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>

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>

It is almost perfect now!
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>

Do not return error for demod attach in case of mxl5005s tuner.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

For now it supports only Realtek RTL2831U chip.
RTL2831U is integrated DVB USB interface and DVB-T demod.
DVB-T demod integrated to RTL2831U is Realtek RTL2830.
Supported tuners are QT1010, MT2060 and MXL5005S.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
[mchehab@redhat.com: fix a small typo]
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>