Making static data const avoids allocation of additional r/w memory and
reduces initialisation time. It also provides some additional opportunities
for compiler optimisations.
Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tuner, DVB frontend and video helper chip drivers are by default
autoselected by their respective host cards, this, however, doesn't make
much sense on SoC-based systems. Disable autoselection on EMBEDDED
systems.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/common/tuners/xc5000.c: In function ‘xc_write_reg’:
drivers/media/common/tuners/xc5000.c:298: warning: passing argument 3 of ‘xc5000_readreg’ from incompatible pointer type
drivers/media/common/tuners/xc5000.c:235: note: expected ‘u16 *’ but argument is of type ‘u8 *’
drivers/media/common/tuners/xc5000.c: At top level:
drivers/media/common/tuners/xc5000.c:223: warning: ‘xc_read_i2c_data’ defined but not used
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Resend due to a whitespace issue I created by mistake.
The below patch fixes a warning message create by gcc 4.6.0
CC [M] drivers/media/common/tuners/tuner-simple.o
drivers/media/common/tuners/tuner-simple.c: In function 'simple_set_tv_freq':
drivers/media/common/tuners/tuner-simple.c:548:20: warning: variable 'tun' set but not used
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Rework xc_write_reg function for correct read register of the xc5000.
It is very useful for tm6000.
Tested for tm6000 and for saa7134 works well.
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix error detection of failures during initialization of first instance:
Dont pass a function into the tda_fail macro. Instead, save the function
return value and pass that into the tda_fail macro.
This prevents the function from being called twice in cases of failure,
for example:
[19026.074070] tuner 4-0060: chip found @ 0xc0 (device #0)
[19026.087755] tda18271 4-0060: creating new instance
[19026.089965] Unknown device detected @ 4-0060, device not supported.
[19026.092233] Unknown device detected @ 4-0060, device not supported.
[19026.092241] tda18271_attach: [4-0060|M] error -22 on line 1275
[19026.092327] tda18271 4-0060: destroying instance
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix a regression in the firmware loading time where it went from 1080 ms to
4700 ms. This was noticed when the em28xx based HVR-950 took noticably longer
to load the driver.
Regression introduced in hg 12824. The developer added an msleep() call with
an argument based on a newly introduced xc3028_ctrl field, which is left
initialized to zero for pretty much every board that is currently supported.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
tm6000 sometimes can't read from i2c, but this is currently required for
tuner-xc2028 to work.
This patch adds an option to tuner-xc2028 to not rely on i2c reading.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Sony makes custome tuners for its GigaPocket line of ivtv based capture
cards. This adds an entry to the tuner-types list for such tuners.
Parameters are based on experiments by Eric Anderson <rico99@sbcglobal.net>.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A small mistake on the last patch broke demod s-code setup for
XC3028L (firmware 3.2 and upper). Fix it.
Thanks-to: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There's one reported regression in Australia (DTV7) and some
reported troubles with newer firmwares found on xc3028l chips.
Rework the logic to improve tuner on those cases.
Thanks-to: Robert Lowery <rglowery@exemail.com.au>
Thanks-to: Stefan Ringel <stefan.ringel@arcor.de>
Tested-by: Robert Lowery <rglowery@exemail.com.au>
CC: stable.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch drops usage of floating point variable for 32bit build
Signed-off-by: David T. L. Wong <davidtlwong@gmail.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adds support for Maxim MAX2165 silicon tuner.
It is tested on Mygica X8558Pro, which has MAX2165, ATBM8830 and CX23885
Signed-off-by: David T. L. Wong <davidtlwong@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The HVR-1600 doesn't use the standard mechanism for computing the gain when
in QAM mode, instead always forcing it to be 0x02. Provide the ability to
override the algorithm on a per-board basis.
This change results in an improvement of 0.4-0.6 dB for QAM tuning.
This work was sponsored by ONELAN Limited.
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In the changeset entitled, "tda18271: add support for the set_config method",
the initialization order was changed such that the standard map overrides
were being applied before loading the default standard map, based on the
stepping of the silicon. This changeset restores the proper order by
processing the standard map overrides both within the tda18271_set_config()
and the tda18271_attach() functions, after we read the id register of the
tuner.
Thanks to Michael Obst for his testing, helping me to identify the regression.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Michael Obst <mike.obst@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The variables are unsigned so the test `>= 0' is always true,
the `< 0' test always fails. In these cases the other part of
the test catches wrapped values.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
consolidate common code used to determine if calibration on startup is needed
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If rf_cal_on_startup is enabled in the structure passed into
tda18271_attach, and the cal module option isn't disabled, then we
should run the initialization and calibration procedures during the
tda18271_attach function call, regardless of how many instances of the
driver have been attached. If the device is already calibrated, the
driver will detect that and will only calibrate again if necessary.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If rf_cal_on_startup is enabled in the structure passed into
tda18271_set_config, and the cal module option isn't disabled,
then we should run the initialization and calibration procedures
during the tda18271_set_config function call.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add the set_config method to allow drivers to configure the
tda18271 driver options after attach.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There is already an option for sending 16 byte chunks rather that writing
39 bytes all at once during the tuner's initialization. Some i2c buses
can't send 16 bytes at once, so create an option for sending 8 byte chunks.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Xc5000 tuning attempts shouldn't return zero in the case where the firmware
did not load successfully.
Thanks to Michael Krufky for pointing out this issue.
Cc: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert tda18271_rf_tracking_filter_cal.rf_[ab][12] from int to s32.
Convert tda18271_priv.tm_rfcal from unsigned int to u8.
Cast subtractions between u32 values as s32.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use temporary variables for signed calulations between unsigned values
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This adds a forgotten module_param macro needed to set a deemphasis of 50us.
It is the standard setting for commercial FM radio broadcasts outside the US.
Signed-off-by: Henk Vergonet <Henk.Vergonet@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Remove hard-coded definition of the xc5000 FM radio input, making it a
parameter passed in when doing the attach call.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
While having tda18271 module set with debug=17 (cal & info prints) and
cal=0 (delay calibration process until first use) - I discovered that
during the calibration process, if the frequency test for 69750000
returned a bcal of 0 (see tda18721-fe.c in tda18271_powerscan func) that
the tuner wouldn't be able to pickup any of the frequencies in the range
(all the other frequencies bands returned bcal=1). I spent some time
going over the code and the NXP's tda18271 spec (ver.4 of it i think) and
adding a lot of debug prints and walking/stepping through the calibration
process. I found that when the powerscan fails to find a frequency, the
rf calibration is not run and the default value is supposed to be used in
its place (pulled from the RF_CAL_map table) - but something was getting
goofed up there.
Now, my c coding skills are very rusty, but i think root of the problem is
a signedness issue with the math operation for calculating the rf_a1 and
rf_a2 values in tda18271_rf_tracking_filters_init func, which results in
values like 20648 for rf_a1 (when it should probably have a value like 0,
or so slightly negative that it should be zero - this bad value for rf_a1
would in turn makes the approx calc within
tda18271c2_rf_tracking_filters_correction go out of whack). The simplest
solution i found was to explicitly convert the signedness of the
denominator to avoid the implicit conversion. The values placed into the
u32 rf_freq array should never exceed about 900mhz, so i think the s32 max
value shouldn't be an issue in this case.
I've tested it out a little, and even when i get a bcal=0 with the
modified code, the default calibration value gets used, rf_a1 is zero, and
the tuner seems to lock on the stream and mythtv seems to play it fine.
Signed-off-by: Seth Barry <seth@cyberseth.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Multiplication by 62500 causes an overflow in the 32 bit freq variable,
which is later divided by 1000 when using FM radio.
This patch prevents the overflow by scaling the frequency value correctly
upfront. Thanks to Henk Vergonet for spotting the problem and providing
a preliminary patch, which this changeset was based upon.
Cc: Henk Vergonet <Henk.Vergonet@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
CC: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add support for NXP TDA18271 as a standalone tuner, allowing the use of
analog demodulators other than the Philips/NXP TDA829x.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fixed one value and removed a duplicate in tda18271_cid_target[],
based on table 54 "CID_Target_map" in Rev.04 of the TDA18271HD datasheet.
Signed-off-by: Henk Vergonet <Henk.Vergonet@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Update the tda18271c2_rf_tracking_filters_correction function to include
the modified temperature compensation calculatation formula as described
in Rev.04 of the TDA18271HD datasheet.
Signed-off-by: Henk Vergonet <Henk.Vergonet@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Don't display "no agc configuration provided" unless DBG_ADV is set.
Fix comments in function, tda18271_agc. This config variable is not
for LNA configuration -- it is for external AGC configuration.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Display function parameters, idx and len, in error log.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For the case of multiple tuner instances, ensure that non-default
configuration options are saved into the driver's state.
This resolves an issue where a configuration option may not be
carried into the driver if the analog side of a hybrid driver
initializes before the digital side.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
minor cleanup: move small_i2c assignment to the state config block
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For better readability, treat the low power standby mode configuration
as an output option feature configuration, and change it to a bitmask.
If left unconfigured, all features will remain enabled, just as the
default configuration was before these changes were introduced.
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
