Commit Graph

1439 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab 19bdd0d661 media: lgdt330x: provide DVBv5 Carrier S/N measurements
Change the logic at the driver to provide CNR stats via
DVBv5 API.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:11:25 -04:00
Mauro Carvalho Chehab 53d41728f2 media: lgdt330x: move *read_status functions
In preparation to implement DVBv5 stats on this driver, move
the *read_status functions to happen after SNR and signal
strength routines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:10:57 -04:00
Mauro Carvalho Chehab 1334a7dc5f media: lgdt330x: constify several register init arrays
There are several register init arrays there that can be
constified.

The change reduced a little bit the amount of initialized
data:

   text	   data	    bss	    dec	    hex	filename
   6372	    360	      4	   6736	   1a50	old/drivers/media/dvb-frontends/lgdt330x.o
   6500	    264	      4	   6768	   1a70	new/drivers/media/dvb-frontends/lgdt330x.o

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:10:28 -04:00
Mauro Carvalho Chehab db9c1007bc media: lgdt330x: do some cleanups at status logic
Simplify a few ifs there.

While here, add debug messages for the 8-vsb and qam log status
flags.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:09:54 -04:00
Mauro Carvalho Chehab 23ba635d45 media: lgdt330x: convert it to the new I2C binding way
Convert the driver to allow its usage with the new I2C
binding way.

Please notice that this patch doesn't convert the
callers to bind to it using the new way.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:09:26 -04:00
Mauro Carvalho Chehab ff093612b0 media: lgdt330x: print info when device gets probed
It is useful to know if the driver load succeded. So,
add a printk info there.

While here, improve the .init debug printed message.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:06:48 -04:00
Mauro Carvalho Chehab 6752c79719 media: lgdt330x: use pr_foo() macros
Cleanup the usecases of dprintk() by using pr_fmt() and replace
printk by pr_foo().

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:06:12 -04:00
Mauro Carvalho Chehab 467845a1a8 media: lgdt330x: fix coding style issues
As we're about to convert this driver to use the new i2c
binding way, let's first solve most coding style issues,
in order to avoid mixing coding style changes with code
changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:05:38 -04:00
Mauro Carvalho Chehab 7129d31484 media: lgdt330x: use kernel-doc instead of inlined comments
Change the lgdt330x_config documentation to use kernel-doc
style.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:03:38 -04:00
Daniel Scheller cea6d2392f media: dvb-frontends/stv0910: fix CNR reporting in read_snr()
The CNR value determined in read_snr() is reported via the wrong variable.
It uses FE_SCALE_DECIBEL, which implies the value to be reported in svalue
instead of uvalue. Fix this accordingly.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:25:21 -04:00
Daniel Scheller e2c53c8d0b media: dvb-frontends/stv0910: add init values for TSINSDELM/L
The TSINSDEL registers were lacking initialisation in the stv0910 demod
driver. Initialise them (both demods) in the probe() function.

Picked up from the upstream dddvb-0.9.33 release.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 10:24:51 -04:00
Mauro Carvalho Chehab 89d6e45c8a media: sp887x: fix a warning
drivers/media/dvb-frontends/sp887x.c:179 sp887x_initial_setup() error: memcpy() '&buf[2]' too small (30 vs 16384)

This is actually a false alarm, but reverting the check order
makes not only for humans to review the code, but also cleans
the warning.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-23 06:54:32 -04:00
Antti Palosaari 83d6b7c327 media: af9013: add pid filter support
af9013 demod has pid filter. Add support for it.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:11:54 -04:00
Antti Palosaari 12c6b22fbf media: af9013: remove all legacy media attach releated stuff
No one is binding that driver through media attach so remove it and
all related dead code.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:11:19 -04:00
Antti Palosaari 22e59e7204 media: af9013: add i2c mux adapter for tuner bus
Add muxed i2c adapter for demod tuner i2c bus gate control.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:09:50 -04:00
Antti Palosaari 3b536127f5 media: af9013: convert inittabs suitable for regmap_update_bits
Convert inttabs to format (reg, mask, val) which are suitable
parameters to pass directly for regmap_update_bits.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:08:59 -04:00
Antti Palosaari b911fc89e1 media: af9013: wrap dvbv3 statistics via dvbv5
Driver has calculated dvbv5 statistics, so use those as a base for
legacy dvbv3 statistics. Wrap and convert needed values to dvbv3,
remove old dvbv3 statistic implementations.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:06:47 -04:00
Antti Palosaari 233f3ef71c media: af9013: dvbv5 ber and per
Implement dvbv5 ber and per.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:05:48 -04:00
Antti Palosaari f3bb7e22b1 media: af9013: dvbv5 cnr
Implement dvbv5 cnr.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:05:13 -04:00
Antti Palosaari 943a720f5c media: af9013: dvbv5 signal strength
Implement dvbv5 signal strength estimate. We know tuner dependent
-80dBm and -50dBm agc values, construct line equation and use it to
map agc value to signal strength estimate.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:04:43 -04:00
Antti Palosaari 7903fbe3a6 media: af9013: change lock detection slightly
Whilst rewritten largely, the basic logic remains same with one
exception: do not return immediately on success case. We are going to
add statistics that function and cannot return too early.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-21 14:03:57 -04:00
Daniel Scheller a31b86b176 media: dvb-frontends/Kconfig: move the SP2 driver to the CI section
The CIMaX SP2 driver is a EN50221 CI controller I2C driver similar to the
cxd2099 driver. Move it's Kconfig block into the newly introduced CI
subsection.

Cc: Olli Salonen <olli.salonen@iki.fi>
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-08 06:06:50 -05:00
Daniel Scheller d158490ae5 media: dvb-frontends/cxd2099: Kconfig additions
The cxd2099 driver makes use of the Regmap I2C kernel API, thus add
"select REGMAP_I2C" to it's Kconfig block. Also, make it default "m" if
!MEDIA_SUBDRV_AUTOSELECT, just like every other dvb-frontend driver.
And, while at it, remove the hyphens around the help tag.

Cc: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-08 06:06:50 -05:00
Mauro Carvalho Chehab fce61d1dfd media: si2168: fix a comment about firmware version
There's a comment there at s82168 that it is wrong.

With firmware 4.0.11, sleep/resume works well without
need of download it every time. But firmware 4.0.19
needs to be downloaded again after sleep.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-08 06:06:49 -05:00
Mauro Carvalho Chehab 8239bac18a media: cxd2880: remove unused vars
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c: In function ‘cxd2880_set_ber_per_period_t’:
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c:677:34: warning: variable ‘c’ set but not used [-Wunused-but-set-variable]
  struct dtv_frontend_properties *c;
                                  ^
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c: In function ‘cxd2880_set_ber_per_period_t2’:
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c:790:34: warning: variable ‘c’ set but not used [-Wunused-but-set-variable]
  struct dtv_frontend_properties *c;
                                  ^
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c: In function ‘cxd2880_get_frontend’:
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c:1799:23: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable]
  struct cxd2880_priv *priv = NULL;
                       ^~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 05:12:59 -05:00
Mauro Carvalho Chehab 9ca4897be5 media: cxd2880: don't return unitialized values
drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.c:59 cxd2880_io_spi_read_reg() error: uninitialized symbol 'ret'.
drivers/media/dvb-frontends/cxd2880/cxd2880_devio_spi.c:111 cxd2880_io_spi_write_reg() error: uninitialized symbol 'ret'.
drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd.c:2985 cxd2880_tnrdmd_set_cfg() error: uninitialized symbol 'ret'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 05:09:30 -05:00
Mauro Carvalho Chehab e61591875b media: cxd2880: Makefile: remove an include
It is not needed anymore to include the dvb-core directory,
as all the public headers that used to be there was moved
to include/media.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 05:03:03 -05:00
Yasunari Takiguchi 9dbaad428d media: cxd2880: Add all Makefile, Kconfig files and Update MAINTAINERS file for the driver
This is the Makefile, Kconfig files of driver
and MAINTAINERS file update about the driver
for the Sony CXD2880 DVB-T2/T tuner + demodulator.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 05:02:57 -05:00
Mauro Carvalho Chehab 7cbc3013f6 media: cxd2880: Fix location of DVB headers
Fix a trivial conflict, where the location of DVB headers
got moved.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 05:02:37 -05:00
Yasunari Takiguchi 55e13167c9 media: cxd2880: Add DVB-T2 monitor functions
Provide monitor functions (DVB-T2)
for the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:43:32 -05:00
Yasunari Takiguchi 9e049346f6 media: cxd2880: Add DVB-T2 control functions for the driver
Provide definitions, interfaces and functions needed for DVB-T2
of the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:43:00 -05:00
Yasunari Takiguchi cc438de9df media: cxd2880: Add DVB-T monitor functions
Provide monitor functions (DVB-T)
for the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:42:32 -05:00
Yasunari Takiguchi 90dc9aa75b media: cxd2880: Add DVB-T control functions the driver
Provide definitions, interfaces and functions needed for DVB-T
of the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:42:09 -05:00
Yasunari Takiguchi 9593810cd4 media: cxd2880: Add top level of the driver
This provides the main dvb frontend operation functions
for the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:41:43 -05:00
Yasunari Takiguchi aff18712be media: cxd2880: Add integration layer for the driver
These functions monitor the driver and watch for task completion.
This is part of the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:41:21 -05:00
Yasunari Takiguchi e5835488c2 media: cxd2880: Add tuner part of the driver
This part of the driver has the main routines to handle
the tuner and demodulator functionality.  The tnrdmd_mon.* files
have monitor functions for the driver.
This is part of the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:40:59 -05:00
Yasunari Takiguchi 4e67e6cb06 media: cxd2880: Add spi device IO routines
Add functions for initializing, reading and writing to the SPI
device for the Sony CXD2880 DVB-T2/T tuner + demodulator.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:40:13 -05:00
Yasunari Takiguchi 1a3ef038d0 media: cxd2880: Add common files for the driver
These are common files for the driver for the
Sony CXD2880 DVB-T2/T tuner + demodulator.
These contains helper functions for the driver.

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 04:39:42 -05:00
Brad Love f6618cc8b4 media: lgdt3306a: remove symbol count mismatch fix
This symbol mismatch is handled by NULL'ing out the release
callback if the driver is loaded as an i2c device.

This patch reverts:
- commit 94448e21cf ("media: lgdt3306a: Fix a double kfree on i2c
  device remove")
- commit 835d66173a ("media: lgdt3306a: Fix module count mismatch
  on usb unplug")

The symbol count mismatch is handled by:
- commit 5b3a8e9069 ("media: lgdt3306a: Set fe ops.release to
  NULL if probed")

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-07 03:58:48 -05:00
Daniel Scheller 7bb02ee380 media: dvb-frontends/cxd2099: remove remainders from old attach way
As all drivers using the cxd2099 are converted to handle attach/detach
the generic I2C client way, the static inline cxd2099_attach isn't
required anymore. Thus cleanup cxd2099.h from the remainders, the adr
struct member also isn't used anymore.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 12:15:59 -05:00
Brad Love 1844f49861 media: si2168: change ts bus control logic
Move the ts bus control function moved higher, enabling it
after configuring frontend and removeing ts_bus_ctrl callback.

While here, also add an error checking and re-add a comment
that were removed by commit 445877742c ("media: si2168:
Add ts bus coontrol, turn off bus on sleep").

[mchehab@s-opensource.com: I ended by applying the first version,
 instead of the right one. So, this patch contains the diff and
 the v2 changelog instead]

Fixes: 445877742c ("media: si2168: Add ts bus coontrol, turn off bus on sleep")

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 09:12:32 -05:00
Daniel Scheller da2cf18ff8 media: dvb-frontends/stv0910: rework and fix DiSEqC send
Rework both DiSEqC send functions (send_master_cmd() and send_burst()) to
utilise the new SET_REG() and SET_FIELD() macros. Esp. due to SET_FIELD(),
this makes sure that not all bits (with unrelated purposes) are always
rewritten, but only those needed for sending DiSEqC commands. In
send_burst(), this makes sure that DISEQC_MODE isn't changed from 3 to 2
inbetween when sending SEC_MINI_A. Also, change both functions to write
DISEQC_MODE first before setting DIS_PRECHARGE. This makes diseqc control
work more reliable for "fullblown" DiSEqC strings in VDR's diseqc.conf in
combination with certain multiswitches.

Fixes: 448461af0e ("media: dvb-frontends/stv0910: implement diseqc_send_burst")

Reported-by: Helmut Auer <post@helmutauer.de>
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Helmut Auer <post@helmutauer.de>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Tested-by: Dietmar Spingler <d_spingler@freenet.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 08:58:34 -05:00
Daniel Scheller 15f757bb5a media: cxd2099: move driver out of staging into dvb-frontends
According to the TODO file, this driver only landed in staging because of
the way device nodes and data transfers are handled. Besides that this way
(use of secX devices) has become sort of standard to date (ie. VDR
supports this literally since ages via the ddci plugin, TVHeadend received
this functionality lately, and minisatip being currently worked on
regarding this), most importantly this I2C client only driver isn't even
responsible for setting up device nodes, not for handling data
transfer and so on, but only serves as interface for the dvb_ca_en50221
subsystem, just like every other DVB card out in the wild, with hard-wired
or such flexible CA interfaces. And, it would even work with cards having
the cxd2099 controller hard-wired.

Also, this driver received quite some love and even is a proper I2C client
driver by now. So, as this driver acts as a EN50221 frontend device, move
it to dvb-frontends. There is no need to keep it buried in staging.

This commit also updates all affected Kconfig and Makefile's, and adds
MEDIA_AUTOSELECT depends to ddbridge and ngene.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 08:50:18 -05:00
Wolfram Sang e2ce49468a media: v4l: dvb-frontends: stb0899: fix comparison to bitshift when dealing with a mask
Due to a typo, the mask was destroyed by a comparison instead of a bit
shift.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 08:30:10 -05:00
Corentin Labbe 948aaf788f media: drx-j remove bsp_i2c.h
bsp_i2c.h is unused since commit ffe7c4f921 ("[media] drx-j: Get rid of drx39xyj/bsp_tuner.h")
Remove it from tree.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 08:21:03 -05:00
Brad Love d4c779bc91 media: si2168: Add spectrum inversion property
Some tuners produce inverted spectrum, but the si2168 is not
currently set up to accept it. This adds an optional parameter
to set the frontend up to receive inverted spectrum.

Parameter is optional and only boards who enable inversion
will utilize this.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 07:40:14 -05:00
Brad Love 3061df060f media: si2168: Announce frontend creation failure
The driver outputs on success, but is silent on failure. Give
one message that probe failed.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 07:26:11 -05:00
Brad Love e7f4d7516a media: lgdt3306a: Announce successful creation
The driver is near silent, this adds a simple announcement at the
end of probe after the chip has been detected and upgrades a debug
message to error if probe has failed.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 07:25:55 -05:00
Brad Love 445877742c media: si2168: Add ts bus coontrol, turn off bus on sleep
Includes a function to set TS MODE property os si2168. The function
either disables the TS output bus, or sets mode to config option.

When going to sleep the TS bus is turned off, this makes the driver
compatible with multiple frontend usage.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 07:25:31 -05:00
Xiongfeng Wang b312598dd4 media: dibx000_common: use strlcpy() instead of strncpy()
gcc-8 reports

drivers/media/dvb-frontends/dibx000_common.c: In function
'i2c_adapter_init':
./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified
bound 48 equals destination size [-Wstringop-truncation]

We need to use strlcpy() to make sure the dest string is
nul-terminated.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 06:05:53 -05:00
Mauro Carvalho Chehab ad05ff091f media: s5h14*.h: fix typos for CONTINUOUS
There is a typo at the several s5h14*.h headers: continuous were
spelled incorrectly.

Fix it with this script:

for i in $(git grep -l S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK); do
	sed s,S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,g -i $i
done
for i in $(git grep -l -i continous drivers/media); do sed s,CONTINOUS,CONTINUOUS,g -i $i; done

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 05:15:02 -05:00
Brad Love 94448e21cf media: lgdt3306a: Fix a double kfree on i2c device remove
Both lgdt33606a_release and lgdt3306a_remove kfree state, but _release is
called first, then _remove operates on states members before kfree'ing it.
This can lead to random oops/GPF/etc on USB disconnect.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 04:40:02 -05:00
Brad Love 835d66173a media: lgdt3306a: Fix module count mismatch on usb unplug
When used as an i2c device there is a module usage count mismatch on
removal, preventing the driver from being used thereafter. dvb_attach
increments the usage count so it is properly balanced on removal.

On disconnect of Hauppauge SoloHD/DualHD before:

lsmod | grep lgdt3306a
lgdt3306a              28672  -1
i2c_mux                16384  1 lgdt3306a

On disconnect of Hauppauge SoloHD/DualHD after:

lsmod | grep lgdt3306a
lgdt3306a              28672  0
i2c_mux                16384  1 lgdt3306a

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 04:39:30 -05:00
Brad Love 4966c0c5c6 media: lgdt3306a: Add QAM AUTO support
As configured currently, modulation in the driver is set to auto detect,
no matter what the user sets modulation to. This leads to both QAM64
and QAM256 having the same effect. QAM AUTO is explicitly added here for
compatibility with scanning software who can use AUTO instead of doing
essentially the same scan twice.
Also included is a module option to enforce a specific QAM modulation if
desired. The true modulation is read before calculating the snr.
Changes are backwards compatible with current behaviour.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 04:37:30 -05:00
Brad Love 4c7c3f9b1a media: lgdt3306a: QAM streaming improvement
Add some register updates required for stable viewing
on Cablevision in NY. Does not adversely affect other providers.

Changes since v1:
- Change upper case hex to lower case.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 04:35:51 -05:00
Brad Love 5b3a8e9069 media: lgdt3306a: Set fe ops.release to NULL if probed
If release is part of frontend ops then it is called in the
course of dvb_frontend_detach. The process also decrements
the module usage count. The problem is if the lgdt3306a
driver is reached via i2c_new_device, then when it is
eventually destroyed remove is called, which further
decrements the module usage count to negative. After this
occurs the driver is in a bad state and no longer works.
Also fixed by NULLing out the release callback is a double
kfree of state, which introduces arbitrary oopses/GPF.
This problem is only currently reachable via the em28xx driver.

On disconnect of Hauppauge SoloHD before:

lsmod | grep lgdt3306a
lgdt3306a              28672  -1
i2c_mux                16384  1 lgdt3306a

On disconnect of Hauppauge SoloHD after:

lsmod | grep lgdt3306a
lgdt3306a              28672  0
i2c_mux                16384  1 lgdt3306a

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 04:35:28 -05:00
Dan Gopstein 7aa92c4229 media: ABS macro parameter parenthesization
Replace usages of the locally defined ABS() macro with calls to the
canonical abs() from kernel.h and remove the old definitions of ABS()

This change was originally motivated by two local definitions of the
ABS (absolute value) macro that fail to parenthesize their parameter
properly. This can lead to a bad expansion for low-precedence
expression arguments.

For example: ABS(1-2) currently expands to ((1-2) < 0 ? (-1-2) : (1-2))
which evaluates to -3. But the correct expansion would be
((1-2) < 0 ? -(1-2) : (1-2)) which evaluates to 1.

Signed-off-by: Dan Gopstein <dgopstein@nyu.edu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 04:08:17 -05:00
Daniel Scheller 62474660fb media: dvb-frontend/mxl5xx: add support for physical layer scrambling
The MaxLinear MxL5xx has support for physical layer scrambling, which was
recently added to the DVB core via the new scrambling_sequence_index
property. Add required bits to the mxl5xx driver.

Picked up from dddvb master, commit 5c032058b9ba ("add support for PLS")
by Ralph Metzler <rjkm@metzlerbros.de>, adapted to the different naming
of the pls property (pls vs. scrambling_sequence_index).

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-05 14:58:30 -05:00
Mauro Carvalho Chehab 76bf7087fb Merge commit 'v4.16-rc4~0' into patchwork
* commit 'v4.16-rc4~0': (900 commits)
  Linux 4.16-rc4
  memremap: fix softlockup reports at teardown
  libnvdimm: re-enable deep flush for pmem devices via fsync()
  MAINTAINERS: take over Kconfig maintainership
  vfio: disable filesystem-dax page pinning
  kconfig: fix line number in recursive inclusion error message
  Coccinelle: memdup: Fix typo in warning messages
  i2c: octeon: Prevent error message on bus error
  parisc: Reduce irq overhead when run in qemu
  parisc: Use cr16 interval timers unconditionally on qemu
  parisc: Check if secondary CPUs want own PDC calls
  parisc: Hide virtual kernel memory layout
  parisc: Fix ordering of cache and TLB flushes
  kconfig: Update ncurses package names for menuconfig
  kbuild/kallsyms: trivial typo fix
  kbuild: test --build-id linker flag by ld-option instead of cc-ldoption
  kbuild: drop superfluous GCC_PLUGINS_CFLAGS assignment
  kconfig: Don't leak choice names during parsing
  sh: fix build error for empty CONFIG_BUILTIN_DTB_SOURCE
  kconfig: set SYMBOL_AUTO to the symbol marked with defconfig_list
  ...
2018-03-05 07:39:06 -05:00
Gustavo A. R. Silva 91e0c0c1b0 media: dvb-frontends: ves1820: use 64-bit arithmetic instead of 32-bit
Add suffix ULL to constant 10 in order to give the compiler complete
information about the proper arithmetic to use. Notice that this
constant is used in a context that expects an expression of type
u64 (64 bits, unsigned).

The expression fpxin = state->config->xin * 10 is currently being
evaluated using 32-bit arithmetic.

Addresses-Coverity-ID: 200604 ("Unintentional integer overflow")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:07:38 -05:00
Gustavo A. R. Silva 1ae207fa7b media: rtl2832: use 64-bit arithmetic instead of 32-bit in rtl2832_set_frontend
Add suffix ULL to constant 7 in order to give the compiler complete
information about the proper arithmetic to use. Notice that this
constant is used in a context that expects an expression of type
u64 (64 bits, unsigned).

The expression dev->pdata->clk * 7 is currently being evaluated
using 32-bit arithmetic.

Addresses-Coverity-ID: 1271223 ("Unintentional integer overflow")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:07:13 -05:00
Mauro Carvalho Chehab b9c97c67fd media: m88ds3103: don't call a non-initalized function
If m88d3103 chip ID is not recognized, the device is not initialized.

However, it returns from probe without any error, causing this OOPS:

[    7.689289] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[    7.689297] pgd = 7b0bd7a7
[    7.689302] [00000000] *pgd=00000000
[    7.689318] Internal error: Oops: 80000005 [#1] SMP ARM
[    7.689322] Modules linked in: dvb_usb_dvbsky(+) m88ds3103 dvb_usb_v2 dvb_core videobuf2_vmalloc videobuf2_memops videobuf2_core crc32_arm_ce videodev media
[    7.689358] CPU: 3 PID: 197 Comm: systemd-udevd Not tainted 4.15.0-mcc+ #23
[    7.689361] Hardware name: BCM2835
[    7.689367] PC is at 0x0
[    7.689382] LR is at m88ds3103_attach+0x194/0x1d0 [m88ds3103]
[    7.689386] pc : [<00000000>]    lr : [<bf0ae1ec>]    psr: 60000013
[    7.689391] sp : ed8e5c20  ip : ed8c1e00  fp : ed8945c0
[    7.689395] r10: ed894000  r9 : ed894378  r8 : eda736c0
[    7.689400] r7 : ed894070  r6 : ed8e5c44  r5 : bf0bb040  r4 : eda77600
[    7.689405] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : eda77600
[    7.689412] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    7.689417] Control: 10c5383d  Table: 2d8e806a  DAC: 00000051
[    7.689423] Process systemd-udevd (pid: 197, stack limit = 0xe9dbfb63)
[    7.689428] Stack: (0xed8e5c20 to 0xed8e6000)
[    7.689439] 5c20: ed853a80 eda73640 ed894000 ed8942c0 ed853a80 bf0b9e98 ed894070 bf0b9f10
[    7.689449] 5c40: 00000000 00000000 bf08c17c c08dfc50 00000000 00000000 00000000 00000000
[    7.689459] 5c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    7.689468] 5c80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    7.689479] 5ca0: 00000000 00000000 ed8945c0 ed8942c0 ed894000 ed894830 bf0b9e98 00000000
[    7.689490] 5cc0: ed894378 bf0a3cb4 bf0bc3b0 0000533b ed920540 00000000 00000034 bf0a6434
[    7.689500] 5ce0: ee952070 ed826600 bf0a7038 bf0a2dd8 00000001 bf0a6768 bf0a2f90 ed8943c0
[    7.689511] 5d00: 00000000 c08eca68 ed826620 ed826620 00000000 ee952070 bf0bc034 ee952000
[    7.689521] 5d20: ed826600 bf0bb080 ffffffed c0aa9e9c c0aa9dac ed826620 c16edf6c c168c2c8
[    7.689531] 5d40: c16edf70 00000000 bf0bc034 0000000d 00000000 c08e268c bf0bb080 ed826600
[    7.689541] 5d60: bf0bc034 ed826654 ed826620 bf0bc034 c164c8bc 00000000 00000001 00000000
[    7.689553] 5d80: 00000028 c08e2948 00000000 bf0bc034 c08e2848 c08e0778 ee9f0a58 ed88bab4
[    7.689563] 5da0: bf0bc034 ed90ba80 c168c1f0 c08e1934 bf0bb3bc c17045ac bf0bc034 c164c8bc
[    7.689574] 5dc0: bf0bc034 bf0bb3bc ed91f564 c08e34ec bf0bc000 c164c8bc bf0bc034 c0aa8dc4
[    7.689584] 5de0: ffffe000 00000000 bf0bf000 ed91f600 ed91f564 c03021e4 00000001 00000000
[    7.689595] 5e00: c166e040 8040003f ed853a80 bf0bc448 00000000 c1678174 ed853a80 f0f22000
[    7.689605] 5e20: f0f21fff 8040003f 014000c0 ed91e700 ed91e700 c16d8e68 00000001 ed91e6c0
[    7.689615] 5e40: bf0bc400 00000001 bf0bc400 ed91f564 00000001 00000000 00000028 c03c9a24
[    7.689625] 5e60: 00000001 c03c8c94 ed8e5f50 ed8e5f50 00000001 bf0bc400 ed91f540 c03c8cb0
[    7.689637] 5e80: bf0bc40c 00007fff bf0bc400 c03c60b0 00000000 bf0bc448 00000028 c0e09684
[    7.689647] 5ea0: 00000002 bf0bc530 c1234bf8 bf0bc5dc bf0bc514 c10ebbe8 ffffe000 bf000000
[    7.689657] 5ec0: 00011538 00000000 ed8e5f48 00000000 00000000 00000000 00000000 00000000
[    7.689666] 5ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    7.689676] 5f00: 00000000 00000000 7fffffff 00000000 00000013 b6e55a18 0000017b c0309104
[    7.689686] 5f20: ed8e4000 00000000 00510af0 c03c9430 7fffffff 00000000 00000003 00000000
[    7.689697] 5f40: 00000000 f0f0f000 00011538 00000000 f0f107b0 f0f0f000 00011538 f0f1fdb8
[    7.689707] 5f60: f0f1fbe8 f0f1b974 00004000 000041e0 bf0bc3d0 00000001 00000000 000024c4
[    7.689717] 5f80: 0000002d 0000002e 00000019 00000000 00000010 00000000 16894000 00000000
[    7.689727] 5fa0: 00000000 c0308f20 16894000 00000000 00000013 b6e55a18 00000000 b6e5652c
[    7.689737] 5fc0: 16894000 00000000 00000000 0000017b 00020000 00508110 00000000 00510af0
[    7.689748] 5fe0: bef68948 bef68938 b6e4d3d0 b6d32590 60000010 00000013 00000000 00000000
[    7.689790] [<bf0ae1ec>] (m88ds3103_attach [m88ds3103]) from [<bf0b9f10>] (dvbsky_s960c_attach+0x78/0x280 [dvb_usb_dvbsky])
[    7.689821] [<bf0b9f10>] (dvbsky_s960c_attach [dvb_usb_dvbsky]) from [<bf0a3cb4>] (dvb_usbv2_probe+0xa3c/0x1024 [dvb_usb_v2])
[    7.689849] [<bf0a3cb4>] (dvb_usbv2_probe [dvb_usb_v2]) from [<c0aa9e9c>] (usb_probe_interface+0xf0/0x2a8)
[    7.689869] [<c0aa9e9c>] (usb_probe_interface) from [<c08e268c>] (driver_probe_device+0x2f8/0x4b4)
[    7.689881] [<c08e268c>] (driver_probe_device) from [<c08e2948>] (__driver_attach+0x100/0x11c)
[    7.689895] [<c08e2948>] (__driver_attach) from [<c08e0778>] (bus_for_each_dev+0x4c/0x9c)
[    7.689909] [<c08e0778>] (bus_for_each_dev) from [<c08e1934>] (bus_add_driver+0x1c0/0x264)
[    7.689919] [<c08e1934>] (bus_add_driver) from [<c08e34ec>] (driver_register+0x78/0xf4)
[    7.689931] [<c08e34ec>] (driver_register) from [<c0aa8dc4>] (usb_register_driver+0x70/0x134)
[    7.689946] [<c0aa8dc4>] (usb_register_driver) from [<c03021e4>] (do_one_initcall+0x44/0x168)
[    7.689963] [<c03021e4>] (do_one_initcall) from [<c03c9a24>] (do_init_module+0x64/0x1f4)
[    7.689979] [<c03c9a24>] (do_init_module) from [<c03c8cb0>] (load_module+0x20a0/0x25c8)
[    7.689993] [<c03c8cb0>] (load_module) from [<c03c9430>] (SyS_finit_module+0xb4/0xec)
[    7.690007] [<c03c9430>] (SyS_finit_module) from [<c0308f20>] (ret_fast_syscall+0x0/0x54)
[    7.690018] Code: bad PC value

This may happen on normal circumstances, if, for some reason, the demod
hangs and start returning an invalid chip ID:

[   10.394395] m88ds3103 3-0068: Unknown device. Chip_id=00

So, change the logic to cause probe to fail with -ENODEV, preventing
the OOPS.

Detected while testing DVB MMAP patches on Raspberry Pi 3 with
DVBSky S960CI.

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:22:32 -05:00
Mauro Carvalho Chehab 81742be14b media: ts2020: avoid integer overflows on 32 bit machines
Before this patch, when compiled for arm32, the signal strength
were reported as:

Lock   (0x1f) Signal= 4294908.66dBm C/N= 12.79dB

Because of a 32 bit integer overflow. After it, it is properly
reported as:

	Lock   (0x1f) Signal= -58.64dBm C/N= 12.79dB

Cc: stable@vger.kernel.org
Fixes: 0f91c9d6ba ("[media] TS2020: Calculate tuner gain correctly")
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-29 07:46:46 -05:00
Mauro Carvalho Chehab 6e6a8b5a38 media: replace all <spaces><tab> occurrences
There are a lot of places where sequences of space/tabs are
found. Get rid of all spaces before tabs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:15:05 -05:00
Mauro Carvalho Chehab 4a3fad709b media: fix usage of whitespaces and on indentation
On several places, whitespaces are being used for indentation,
or even at the end of the line.

Fix them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:12:01 -05:00
Daniel Scheller 6392bc2e6c media: dvb-frontends/stv0910: cleanup init_search_param() and enable PLS
Cleanup the mess in init_search_param() by utilising the new register
access macros and functions. And while at it, move the ISI and PLS setup
into separate functions, and pass the new scrambling_sequence_index (aka.
physical layer scrambling) value to set_pls.

Picked up from the dddvb upstream, adapted to the different naming of the
pls property (pls vs. scrambling_sequence_index).

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 04:48:50 -05:00
Daniel Scheller bdd7682b16 media: dvb-frontends/stv0910: field and register access helpers
Add a write_field() function that acts as helper to update specific bits
specified in the field defines (FSTV0910_*) in stv0910_regs.h, which was
recently updated to carry the missing offset values. With that, add the
SET_FIELD(), SET_REG() and GET_REG() macros that wrap the write_field(),
write_reg() and read_reg() functions to allow for making all demod
access code cleaner.

The write_field() function is annotated with __maybe_unused temporarily
to silence eventual compile warnings.

Picked up from the dddvb upstream, with the macro names made uppercase
so they are distinguishable as such.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 04:48:07 -05:00
Daniel Scheller 8042e98c38 media: dvb-frontends/stv0910: cleanup I2C access functions
write_reg() and i2c_write_reg16() only act as a proxy to i2c_write(), which
isn't called from anywhere else throughout the driver. Clean this up by
moving the message setup and the i2c_transfer() into write_reg() so it
becomes the only I2C write function. While touching those parts, fix the
error codes from EREMOTEIO to EIO.

The I2C cleanup is picked from the upstream dddvb.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 04:46:59 -05:00
Daniel Scheller 4b596bd70a media: dvb-frontends/stv0910: deduplicate writes in enable_puncture_rate()
For all code rates, the same write is performed, only with a differing
value. Clean this up by putting that value into a variable instead and
perform the write at the end with that value.

Picked up from the dddvb upstream.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 04:45:45 -05:00
Mauro Carvalho Chehab fada193559 media: move dvb kAPI headers to include/media
Except for DVB, all media kAPI headers are at include/media.

Move the headers to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 13:16:01 -05:00
Nick Desaulniers 7369bbf262 media: dvb-frontends: remove extraneous parens
Fixes 2 warnings from Clang about extra parentheses in a conditional,
that might have been meant as assignment.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 08:08:47 -05:00
Athanasios Oikonomou 93314453a9 media: stv090x: add physical layer scrambling support
This commit uses the new property scrambling_sequence_index
to control PLS.
By default we are using the gold sequence 0 and only gold sequences
expected on the new property.

Please note that all services use PLS, just most with the default
sequence 0 and many demods only support gold 0.

Signed-off-by: Athanasios Oikonomou <athoik@gmail.com>
Acked-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-19 07:12:59 -05:00
Arnd Bergmann 3cd890dbe2 media: dvb-frontends: fix i2c access helpers for KASAN
A typical code fragment was copied across many dvb-frontend drivers and
causes large stack frames when built with with CONFIG_KASAN on gcc-5/6/7:

drivers/media/dvb-frontends/cxd2841er.c:3225:1: error: the frame size of 3992 bytes is larger than 3072 bytes [-Werror=frame-larger-than=]
drivers/media/dvb-frontends/cxd2841er.c:3404:1: error: the frame size of 3136 bytes is larger than 3072 bytes [-Werror=frame-larger-than=]
drivers/media/dvb-frontends/stv0367.c:3143:1: error: the frame size of 4016 bytes is larger than 3072 bytes [-Werror=frame-larger-than=]
drivers/media/dvb-frontends/stv090x.c:3430:1: error: the frame size of 5312 bytes is larger than 3072 bytes [-Werror=frame-larger-than=]
drivers/media/dvb-frontends/stv090x.c:4248:1: error: the frame size of 4872 bytes is larger than 3072 bytes [-Werror=frame-larger-than=]

gcc-8 now solves this by consolidating the stack slots for the argument
variables, but on older compilers we can get the same behavior by taking
the pointer of a local variable rather than the inline function argument.

Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715

Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-15 11:53:50 -05:00
Ron Economos 380a6c8645 media: [RESEND] media: dvb-frontends: Add delay to Si2168 restart
On faster CPUs a delay is required after the resume command and the restart command. Without the delay, the restart command often returns -EREMOTEIO and the Si2168 does not restart.

Note that this patch fixes the same issue as https://patchwork.linuxtv.org/patch/44304/, but I believe my udelay() fix addresses the actual problem.

Signed-off-by: Ron Economos <w6rz@comcast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 12:22:23 -05:00
Daniel Scheller 22f584c5c6 media: dvb-frontends/stv0910: remove unneeded dvb_math.h include
Since nothing from dvb_math.h is used, remove the unneeded include.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:37:58 -05:00
Daniel Scheller 5dd70f5a6a media: dvb-frontends/stv0910: remove unneeded symbol rate inquiry
tracking_optimization() doesn't make use of the symbol rate reported by
the demodulator, so remove the unneeded inquiry and the now unneeded
variable.

Reported-by: Richard Scobie <rascobie@slingshot.co.nz>
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:37:34 -05:00
Daniel Scheller 0b885ded9c media: dvb-frontends/stv0910: read symbolrate in get_frontend()
Utilise get_cur_symbol_rate() in get_frontend() to update the
dtv_frontend_properties with the current symbol rate as reported by the
demodulator.

Reported-by: Richard Scobie <rascobie@slingshot.co.nz>
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:37:07 -05:00
Daniel Scheller 471dd695dc media: dvb-frontends/stv0910: remove unneeded check/call to get_if_freq
The result (if any) isn't used anywhere besides being assigned to a local
variable (and the only current companion stv6111 doesn't even implement
get_if_frequency()), thus remove the ptr check and the call, and also
remove the now unused iffreq variable.

Reported-by: Richard Scobie <rascobie@slingshot.co.nz>
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:36:31 -05:00
Daniel Scheller fd7849d7d8 media: dvb-frontends/stv6111: handle gate_ctrl errors
When a parent (demod) driver encounters and signals a problem with
gate_ctrl(), don't blindly continue poking the I2C bus.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:35:55 -05:00
Daniel Scheller aea16005f4 media: dvb-frontends/stv0910: WARN_ON() on consecutive mutex_unlock()
Stack dump when gate_ctrl() is called in a way that consecutive unlocks
happen. This is a clear indication that other drivers interfacing with
the stv0910 driver don't do things properly or don't check for failures,
so dump stack so that those drivers can be identified and fixed.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:35:10 -05:00
Daniel Scheller 1cba4ae011 media: frontends/stv0910: add field offsets to field defines
Each field (FSTV0910_XX) is declared as reg/off/unused/sign/mask. Add
the missing offset value to the defines.

Picked up from dddvb master, commit 8a1f27c3d22c ("add field offset to
field defines") by Ralph Metzler <rjkm@metzlerbros.de>, adapted to
match the comment style in the mainline driver.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:34:33 -05:00
Colin Ian King 2ddc125de8 media: dvb_frontend: remove redundant status self assignment
The assignment status to itself is redundant and can be removed.
Detected with Coccinelle.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:18:39 -05:00
Colin Ian King 82ba8132de media: dvb-frontends/stv0367: remove redundant self assignment of temporary
The self assignment of temporary is redundant and can be removed.
Detected using coccinelle.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:04:20 -05:00
Colin Ian King 50170325b8 media: stb0899: remove redundant self assignment of k_indirect
The self assignment of k_indirect is redundant and can be removed.
Detected using coccinelle.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-13 08:02:25 -05:00
Joe Perches c6a69269eb media: dibx000_common: Fix line continuation format
Line continuations with excess spacing causes unexpected output.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 07:53:57 -05:00
Matthias Schwarzott e9c7d19a38 media: si2165: Add DVBv3 wrapper for ber statistics
Add read_ber function that reads from property cache to support DVBv3.
The implementation is inspired by the cx24120 driver.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:52:59 -05:00
Matthias Schwarzott 2e687a6d3d media: si2165: add DVBv3 wrapper for C/N statistics
Add read_snr function that reads from property cache to support DVBv3.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:52:58 -05:00
Matthias Schwarzott 964b372740 media: si2165: add DVBv5 BER statistics
Add support for BER statistics.
Configure a measurement period of 30000 packets.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:52:58 -05:00
Matthias Schwarzott c0675d0b2a media: si2165: add DVBv5 C/N statistics for DVB-C
Add C/N statistics in dB to read_status (DVBv5).

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:52:57 -05:00
Matthias Schwarzott 1e5fde1bc2 media: si2165: improve read_status
Use check_signal register for DVB-T additionally.
For DVB-C use ps_lock additionally.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:52:57 -05:00
Matthias Schwarzott 548b1f9490 media: si2165: Use constellation from property cache instead of hardcoded QAM256
Use constellation from property cache instead of always setting it to
QAM256.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:36:10 -05:00
Matthias Schwarzott f4d9051892 media: si2165: Write const value for lock timeout
The lock timeout should not depend on the bandwidth.
It should be either constant or depend on xtal frequency.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:35:36 -05:00
Matthias Schwarzott ec278f879a media: si2165: move ts parallel mode setting to the ts init code
The TS parallel mode setting should be where all other TS settings are written.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:34:46 -05:00
Matthias Schwarzott 814f86c9e2 media: si2165: define register macros
Convert register numbers to macros.

Correctness verified by comparing the disassembly before and after.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:34:06 -05:00
Matthias Schwarzott 7dbbb4bf1e media: si2165: Make checkpatch happy
Fix almost all of checkpatch --strict warnings.

The remaining warnings are about:
* macro REG16 (should be enclosed in parentheses)
* macro REG16 (Macro argument reuse)

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:33:18 -05:00
Matthias Schwarzott 1b54da77f3 media: si2165: Convert debug printk to dev_dbg
Removed module parameter debug and the conditions based on it.
Now it can be configured via dynamic debug.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:31:57 -05:00
Matthias Schwarzott 77f887cdcd media: si2165: Remove redundant KBUILD_MODNAME from dev_* logging
Remove redundant repeated module name from messages.

Before:
  si2165 8-0064: si2165: fw load finished

After:
  si2165 8-0064: fw load finished

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:31:24 -05:00
Mauro Carvalho Chehab f161544d9d media: drxd_hard: better handle I2C errors
As warned by smatch:
	drivers/media/dvb-frontends/drxd_hard.c:989 HI_Command() error: uninitialized symbol 'waitCmd'.
	drivers/media/dvb-frontends/drxd_hard.c:1306 SC_WaitForReady() error: uninitialized symbol 'curCmd'.
	drivers/media/dvb-frontends/drxd_hard.c:1322 SC_SendCommand() error: uninitialized symbol 'errCode'.
	drivers/media/dvb-frontends/drxd_hard.c:1339 SC_ProcStartCommand() error: uninitialized symbol 'scExec'.

The error handling on several places are somewhat flawed, as
they don't check if Read16() returns an error.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:13:39 -05:00
Mauro Carvalho Chehab 07ade2d0f6 media: cxd2841er: ensure that status will always be available
The loop with read status use a dynamic timeout value, calculated
from symbol rate. It should run the loop at least one time for
the status to be handled after the loop.

While this should, in practice, happen every time, it doesn't
hurt to change the logic to make it explicit.

This solves a smatch warning:
	drivers/media/dvb-frontends/cxd2841er.c:3350 cxd2841er_set_frontend_s() error: uninitialized symbol 'status'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:57 -05:00
Mauro Carvalho Chehab 74a6799ca9 media: m88rs2000: handle the case where tuner doesn't have get_frequency
If the tuner doesn't have get_frequency() callback, the current
code will place a random value as the frequency offset. That
doesn't seem right! The better is to just assume that, on such
case, the tuner was able to set the exact frequency that was
requested.

Fixes a smatch warning:
	drivers/media/dvb-frontends/m88rs2000.c:639 m88rs2000_set_frontend() error: uninitialized symbol 'tuner_freq'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:56 -05:00
Mauro Carvalho Chehab f303810cf1 media: mb86a16: avoid division by zero
As warned by smatch:
	drivers/media/dvb-frontends/mb86a16.c:1690 mb86a16_read_ber() error: uninitialized symbol 'timer'.
	drivers/media/dvb-frontends/mb86a16.c:1706 mb86a16_read_ber() error: uninitialized symbol 'timer'.

There is a potential risk of doing a division by zero if
timer is not handled well. Enforce it by setting a bit mask
for the values used to select the timer.

It should be noticed that I don't have mb86a16 datasheet. So,
the bitmask was guessed based on the existing checks for
the field. At worse case scenario, it will just show a
badly calculated bit error rate, but it won't crash.

While here, optimize the logic to prevent uneeded tests.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:54 -05:00
Mauro Carvalho Chehab 15e3145a70 media: mb86a16: be more resilient if I2C fails on sync
If the I2C read fails while check for sync, there's no point
on doing adjusting the tuner due to a random value that might
be at VIRM var. So, set VIRM to zero, as that makes the caller
for check_sync() to return an error.

Fix those smatch warnings:
	drivers/media/dvb-frontends/mb86a16.c:1460 mb86a16_set_fe() error: uninitialized symbol 'VIRM'.
	drivers/media/dvb-frontends/mb86a16.c:1461 mb86a16_set_fe() error: uninitialized symbol 'VIRM'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:53 -05:00
Mauro Carvalho Chehab 452c644694 media: drxj: better handle errors
as reported by smatch:
	drivers/media/dvb-frontends/drx39xyj/drxj.c:2157 drxj_dap_atomic_read_write_block() error: uninitialized symbol 'word'.

The driver doesn't check if a read error occurred. Add such
check.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:53 -05:00
Mauro Carvalho Chehab ab0625f021 media: stv090x: Only print tuner lock if get_status is available
The current code doesn't report tuner lock properly if the
tuner get_status callback is not available, as reported by
smatch:
	drivers/media/dvb-frontends/stv090x.c:2220 stv090x_get_coldlock() error: uninitialized symbol 'reg'.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:52 -05:00
Daniel Scheller 9cc6544718 media: stv0910: read and update mod_cod in read_status()
Add missing state->modcod update from upstream driver which needs to be
done when manage_matype_info() sets is_vcm on certain S2 transponders.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:48 -05:00
Mauro Carvalho Chehab 2919d12de5 media: mxl5xx: fix tuning logic
The tuning logic is broken with regards to status report:
it relies on a previously-cached value that may not be valid
if re-tuned.

Change the logic to always read the status.

Acked-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 13:04:33 -05:00
Jérémy Lefaure e40d14a897 media: use ARRAY_SIZE
Using the ARRAY_SIZE macro improves the readability of the code. Also,
it is not always useful to use a variable to store this constant
calculated at compile time.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
 (sizeof(E)@p /sizeof(*E))
|
 (sizeof(E)@p /sizeof(E[...]))
|
 (sizeof(E)@p /sizeof(T))
)

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-08 10:11:00 -05:00
Mauro Carvalho Chehab be9b53c837 media: dvb-frontends: complete kernel-doc markups
For the dvb-frontends that are now part of the documentation,
complete the kernel-doc markups, in order for them to be
properly used at the driver's kAPI documentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-30 04:19:05 -05:00
Mauro Carvalho Chehab b95b0c98f5 media: dvb_frontends: fix kernel-doc macros
Now, the Kernel checks for kernel_doc format issues.
Weird enough, it didn't get any of those troubles. Shssst!

Well, let's fix it, as a preventive way to avoid having
hundreds of new warnings on some next Linux version.

Tested by adding all files under dvb-frontends that have
"/**" on them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-30 04:19:04 -05:00
Mauro Carvalho Chehab cba862dc73 media: drivers: remove "/**" from non-kernel-doc comments
Several comments are wrongly tagged as kernel-doc, causing
those warnings:

  drivers/media/rc/st_rc.c:98: warning: No description found for parameter 'irq'
  drivers/media/rc/st_rc.c:98: warning: No description found for parameter 'data'
  drivers/media/pci/solo6x10/solo6x10-enc.c:183: warning: No description found for parameter 'solo_dev'
  drivers/media/pci/solo6x10/solo6x10-enc.c:183: warning: No description found for parameter 'ch'
  drivers/media/pci/solo6x10/solo6x10-enc.c:183: warning: No description found for parameter 'qp'
  drivers/media/usb/pwc/pwc-dec23.c:652: warning: Cannot understand  *
   on line 652 - I thought it was a doc line
  drivers/media/usb/dvb-usb/cinergyT2-fe.c:40: warning: No description found for parameter 'op'
  drivers/media/usb/dvb-usb/friio-fe.c:301: warning: Cannot understand  * (reg, val) commad list to initialize this module.
   on line 301 - I thought it was a doc line
  drivers/media/rc/streamzap.c:201: warning: No description found for parameter 'urb'
  drivers/media/rc/streamzap.c:333: warning: No description found for parameter 'intf'
  drivers/media/rc/streamzap.c:333: warning: No description found for parameter 'id'
  drivers/media/rc/streamzap.c:464: warning: No description found for parameter 'interface'
  drivers/media/i2c/ov5647.c:432: warning: Cannot understand  * @short Subdev core operations registration
   on line 432 - I thought it was a doc line
  drivers/media/usb/dvb-usb/friio.c:35: warning: No description found for parameter 'd'
  drivers/media/usb/dvb-usb/friio.c:35: warning: No description found for parameter 'addr'
  drivers/media/usb/dvb-usb/friio.c:35: warning: No description found for parameter 'wbuf'
  drivers/media/usb/dvb-usb/friio.c:35: warning: No description found for parameter 'wlen'
  drivers/media/usb/dvb-usb/friio.c:35: warning: No description found for parameter 'rbuf'
  drivers/media/usb/dvb-usb/friio.c:35: warning: No description found for parameter 'rlen'
  drivers/media/platform/vim2m.c:350: warning: No description found for parameter 'priv'
  drivers/media/dvb-frontends/tua6100.c:34: warning: cannot understand function prototype: 'struct tua6100_priv '
  drivers/media/platform/sti/hva/hva-h264.c:140: warning: cannot understand function prototype: 'struct hva_h264_stereo_video_sei '
  drivers/media/platform/sti/hva/hva-h264.c:150: warning: Cannot understand  * @frame_width: width in pixels of the buffer containing the input frame
   on line 150 - I thought it was a doc line
  drivers/media/platform/sti/hva/hva-h264.c:356: warning: Cannot understand  * @ slice_size: slice size
   on line 356 - I thought it was a doc line
  drivers/media/platform/sti/hva/hva-h264.c:369: warning: Cannot understand  * @ bitstream_size: bitstream size
   on line 369 - I thought it was a doc line
  drivers/media/platform/sti/hva/hva-h264.c:395: warning: Cannot understand  * @seq_info:  sequence information buffer
   on line 395 - I thought it was a doc line
  drivers/media/dvb-frontends/sp887x.c:137: warning: No description found for parameter 'fe'
  drivers/media/dvb-frontends/sp887x.c:137: warning: No description found for parameter 'fw'
  drivers/media/dvb-frontends/sp887x.c:287: warning: No description found for parameter 'n'
  drivers/media/dvb-frontends/sp887x.c:287: warning: No description found for parameter 'd'
  drivers/media/dvb-frontends/sp887x.c:287: warning: No description found for parameter 'quotient_i'
  drivers/media/dvb-frontends/sp887x.c:287: warning: No description found for parameter 'quotient_f'
  drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c:83: warning: cannot understand function prototype: 'struct ttusb '
  drivers/media/platform/sh_veu.c:277: warning: No description found for parameter 'priv'
  drivers/media/dvb-frontends/zl10036.c:33: warning: cannot understand function prototype: 'int zl10036_debug; '
  drivers/media/dvb-frontends/zl10036.c:179: warning: No description found for parameter 'state'
  drivers/media/dvb-frontends/zl10036.c:179: warning: No description found for parameter 'frequency'
  drivers/media/platform/rcar_fdp1.c:1139: warning: No description found for parameter 'priv'
  drivers/media/platform/ti-vpe/vpe.c:933: warning: No description found for parameter 'priv'
  drivers/media/usb/gspca/ov519.c:36: warning: No description found for parameter 'fmt'
  drivers/media/usb/dvb-usb/dib0700_devices.c:3367: warning: No description found for parameter 'adap'

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-30 04:19:03 -05:00
Mauro Carvalho Chehab 4521af7811 media: ix2505v: get rid of /** comments
As warned:

  drivers/media/dvb-frontends/ix2505v.c:24: warning: cannot understand function prototype: 'int ix2505v_debug; '
  drivers/media/dvb-frontends/ix2505v.c:59: warning: No description found for parameter 'state'
  drivers/media/dvb-frontends/ix2505v.c:128: warning: No description found for parameter 'fe'

None of the comments there are kernel-doc. So, remove them with:

	perl -pi -e 's,\/\*\*,/*,g' drivers/media/dvb-frontends/ix2505v.c

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-30 04:18:57 -05:00
Mauro Carvalho Chehab 34eb9751ea media: drxj and drxk: don't produce kernel-doc warnings
Those drivers use a different notation for comments. While
it is not worth converting to kernel-doc, removing it is also
not an option.

So, just replace /** by /* and be happy :-)

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-27 10:35:32 -05:00
Linus Torvalds 5d352e69c6 media updates for v4.15-rc1
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Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Documentation for digital TV (both kAPI and uAPI) are now in sync
   with the implementation (except for legacy/deprecated ioctls). This
   is a major step, as there were always a gap there

 - New sensor driver: imx274

 - New cec driver: cec-gpio

 - New platform driver for rockship rga and tegra CEC

 - New RC driver: tango-ir

 - Several cleanups at atomisp driver

 - Core improvements for RC, CEC, V4L2 async probing support and DVB

 - Lots of drivers cleanup, fixes and improvements.

* tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (332 commits)
  dvb_frontend: don't use-after-free the frontend struct
  media: dib0700: fix invalid dvb_detach argument
  media: v4l2-ctrls: Don't validate BITMASK twice
  media: s5p-mfc: fix lockdep warning
  media: dvb-core: always call invoke_release() in fe_free()
  media: usb: dvb-usb-v2: dvb_usb_core: remove redundant code in dvb_usb_fe_sleep
  media: au0828: make const array addr_list static
  media: cx88: make const arrays default_addr_list and pvr2000_addr_list static
  media: drxd: make const array fastIncrDecLUT static
  media: usb: fix spelling mistake: "synchronuously" -> "synchronously"
  media: ddbridge: fix build warnings
  media: av7110: avoid 2038 overflow in debug print
  media: Don't do DMA on stack for firmware upload in the AS102 driver
  media: v4l: async: fix unregister for implicitly registered sub-device notifiers
  media: v4l: async: fix return of unitialized variable ret
  media: imx274: fix missing return assignment from call to imx274_mode_regs
  media: camss-vfe: always initialize reg at vfe_set_xbar_cfg()
  media: atomisp: make function calls cleaner
  media: atomisp: get rid of storage_class.h
  media: atomisp: get rid of wrong stddef.h include
  ...
2017-11-15 20:30:12 -08:00
Colin Ian King eaa8c79ead media: drxd: make const array fastIncrDecLUT static
Don't populate array fastIncrDecLUT on the stack but instead make it
static. Makes the object code smaller by over 360 bytes:

   text	   data	    bss	    dec	    hex	filename
  32680	    944	     64	  33688	   8398	drxd_hard.o

   text	   data	    bss	    dec	    hex	filename
  32223	   1040	     64	  33327	   822f	drxd_hard.o

(gcc version 7.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-07 04:00:31 -05:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Mauro Carvalho Chehab 8f8a19fcc1 media: dvb_frontend: get rid of get_property() callback
Only lg2160 implement gets_property, but there's no need for that,
as no other driver calls this callback, as get_frontend() does the
same, and set_frontend() also calls lg2160 get_frontend().

So, get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11 12:51:36 -04:00
Mauro Carvalho Chehab 282996925b media: stv6110: get rid of a srate dead code
The stv6110 has a weird code that checks if get_property
and set_property ioctls are defined. If they're, it initializes
a "srate" var from properties cache. Otherwise, it sets to
15MBaud, with won't make any sense.

Thankfully, it seems that someone else discovered the issue in
the past, as "srate" is currently not used anywhere!

So, get rid of that really weird dead code logic.

Reported-by: Honza Petrous <jpetrous@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11 12:49:20 -04:00
Mauro Carvalho Chehab 473e4b4c1c media: stv0288: get rid of set_property boilerplate
This driver doesn't implement support for set_property(). Yet,
it implements a boilerplate for it. Get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11 12:48:39 -04:00
Hans Verkuil 561b29e4ec media: fix media Kconfig help syntax issues
The help text should be indented by at least two spaces after the
'help' separator. This is both good practice and the media_build system
for building media drivers makes this assumption.

I went through all Kconfigs under drivers/media and fixed any bad help
sections. This makes it conform to the common practice and should fix
problems with 'make menuconfig' when using media_build. This is due to
a "WARNING" message that media_build can insert in the Kconfig and that
assumes the help text is indented by at least two spaces. If not, then the
Kconfig becomes invalid and 'make menuconfig' fails.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Thomas Kaiser <linux-dvb@kaiser-linux.li>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 14:59:24 -04:00
Thomas Meyer 1f679ff6c7 media: lgdt3306a: Use ARRAY_SIZE macro
Use ARRAY_SIZE macro, rather than explicitly coding some variant of it
yourself.
Found with: find -type f -name "*.c" -o -name "*.h" | xargs perl -p -i -e
's/\bsizeof\s*\(\s*(\w+)\s*\)\s*\ /\s*sizeof\s*\(\s*\1\s*\[\s*0\s*\]\s*\)
/ARRAY_SIZE(\1)/g' and manual check/verification.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 08:29:08 -04:00
Daniel Scheller f71c43060a media: dvb-frontends/mxl5xx: declare LIST_HEAD(mxllist) static
Fixes one sparse warning:
  mxl5xx.c:46:1: warning: symbol 'mxllist' was not declared. Should it be static?

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 08:28:46 -04:00
Markus Elfring 9722e5696c media: dvb-frontends: delete jump targets
* Return directly after a call of the function "kzalloc" failed
  at the beginning.

* Move a bit of exception handling code into an if branch.

* Delete jump targets which became unnecessary with this refactoring.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
2017-09-23 08:23:59 -04:00
Markus Elfring af28c99628 media: drivers: Adjust checks for null pointers
The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
2017-09-23 08:20:57 -04:00
Markus Elfring 2d3da59ff1 media: drivers: improve a size determination
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

[mchehab@s-opensoure.com: merge similar patches into one]

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
2017-09-23 08:20:57 -04:00
Markus Elfring d303b7c5b2 media: drivers: delete unnecessary variable initialisations
The variables will be set to an appropriate value before usage.
Thus omit the explicit initialisation at the beginning.

[mchehab@s-opensource.com: fold similar patches into one]

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
2017-09-23 08:20:01 -04:00
Markus Elfring c38e8657a4 media: drivers: delete error messages for failed memory allocation
Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

[mchehab@s-opensource.com: fold several similar patches into one]

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 08:19:55 -04:00
Sean Young b475670715 media: dvb: i2c transfers over usb cannot be done from stack
Since commit 29d2fef8be ("usb: catch attempts to submit urbs
with a vmalloc'd transfer buffer"), the AverMedia AverTV DVB-T
USB 2.0 (a800) fails to probe.

Cc: stable@vger.kernel.org
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 07:21:33 -04:00
Olli Salonen 2fb0e047f9 media: mn88473: reset stream ID reg if no PLP given
If the PLP given is NO_STREAM_ID_FILTER (~0u) don't try to set that into the PLP register. Set PLP to 0 instead.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 18:06:52 -04:00
Olli Salonen 07d45a42fa media: mn88472: reset stream ID reg if no PLP given
If the PLP given is NO_STREAM_ID_FILTER (~0u) don't try to set that into the PLP register. Set PLP to 0 instead.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 18:06:34 -04:00
Dan Carpenter 47bdf7c6d6 media: dib8000: remove some bogus dead code
This function is broken.  It sets the wrong front_end to NULL.  But it's
not used, so let's just delete it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 08:47:00 -04:00
Dan Carpenter 5af478341f media: dib9000: delete some unused broken code
The dib9000_remove_slave_frontend() function isn't used.

I was reviewing it because my static checker claims it writes one
element beyond the end of the array.  That's a false positive.  What it
actually does is, if there are two or more front ends, then it prints a
debug message to say that it removed the first one, stored in
state->fe[1], and then it "removes" (scare quotes on purpose) the second
one, stored in state->fe[2].  Deleting a front end from the middle is
not really supported and breaks code like dib9000_release() which
assumes the first NULL front end marks the end of the list.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 08:46:42 -04:00
Gustavo A. R. Silva 87c0148671 media: dib0090: fix duplicated code for different branches
Refactor code in order to avoid identical code for different branches.

This issue was detected with the help of Coccinelle.

Addresses-Coverity-ID: 1226795

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 07:51:30 -04:00
Daniel Scheller c67215263e media: dvb-frontends/stv0367: remove QAM_AUTO from ddb_fe_ops
Since the cab_* codepath doesn't recognize QAM_AUTO, don't announce that
it is supported when it really isn't. Fixes ie. w_scan from
unconditionally using QAM_AUTO on DVB-C scans.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 07:01:03 -04:00
Daniel Scheller e5d9ce4dde media: dvb-frontends/stv0910: change minsymrate to 100Ksyms/s
The demodulator supports symbol rates as low as 100Ksyms/s - the demod
setup in start() already handles such low symbol rates and reviewers
of stv0910 equipped cards even found and tested transponders with
SRs in that range. So, announce this in the fe_ops.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Cc: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 06:42:53 -04:00
Daniel Scheller 6b852620fa media: dvb-frontends/stv0910: release lock on gate_ctrl() failure
Whenever write_reg() fails to open/close the demod's I2C gate, release the
lock to avoid deadlocking situations. If I2c gate open failed, there's no
need to hold a lock, and if close fails, the mutex_unlock() at the end of
the function is never reached, leaving the mutex_lock in locked state,
which in turn will cause potential for deadlocks. Thus, release the lock
on failure.

While we're touching gate_ctrl(), add some explanation about the need for
locking and the shared I2C bus/gate.

Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-27 06:35:13 -04:00
Jemma Denson 214824156c media: isl6421: add checks for current overflow
This Kaffeine's BZ:
	https://bugs.kde.org/show_bug.cgi?id=374693

affects SkyStar S2 PCI DVB-S/S2 rev 3.3 device. It could be due to
a Kernel bug.

While checking the Isil 6421, comparing with its manual, available at:

	http://www.intersil.com/content/dam/Intersil/documents/isl6/isl6421a.pdf

It was noticed that, if the output load is highly capacitive, a different approach
is recomended when energizing the LNBf.

Also, it is possible to detect if a current overload is happening, by checking an
special flag.

Add support for it.

Tested on Skystar S2. Changes respect override_or option so should still work fine
on cx88 based cards which disable dynamic current limit.

Changes since v1:
v2 - fixed incorrect checking of i2c return values
v3 - fix if logic to check if dcl needs re-enabling
   - respect override_or values which aim to disable dcl
   - only do long sleep on overload if dcl enabled
   - add short sleep before re-enabling dcl
   - only check overload and potentially return EINVAL if device is on
v4 - revert v3 sleep logic changes to remove tuning delays

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jemma Denson <jdenson@gmail.com>
2017-08-20 10:20:30 -04:00
Daniel Scheller 7112b490af media: stv6111: return NULL instead of plain integer
Fixes:
  stv6111.c:665:24: warning: Using plain integer as NULL pointer

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:15:39 -04:00
Daniel Scheller c16ad5de39 media: stv0910: declare global list_head stvlist static
Cleans up smatch warning:
symbol 'stvlist' was not declared. Should it be static?

Patch originally submitted by Colin Ian King <colin.king@canonical.com>,
remainder after the merge of all other stv0910 fixes.

Cc: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:15:34 -04:00
Daniel Scheller 381a28be48 media: dvb-frontends/cxd2841er: update moddesc wrt new chip support
Since the driver now recognizes and supports more chip variants, reflect
this fact in the module description accordingly.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:43:43 -04:00
Daniel Scheller 0758ecdbd8 media: dvb-frontends/stv0910: fix mask for scramblingcode setup
The scrambling code has 4 bits. Fix the mask accordingly.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:29:54 -04:00
Daniel Scheller f0e72c29fd media: dvb-frontends/stv0910: fix FE_HAS_LOCK check order in tune()
It should first read the status and then check if FE has lock.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:29:10 -04:00
Daniel Scheller 3c4e04153f media: dvb-frontends: MaxLinear MxL5xx DVB-S/S2 tuner-demodulator driver
This adds the frontend driver for the MaxLinear MxL5xx family of tuner-
demodulators, as used on Digital Devices MaxS4/8 four/eight-tuner cards.

The driver was picked from the dddvb vendor driver package and - judging
solely from the diff - has undergone a 100% rework:

 - Silly #define's used to pass multiple values to functions were
   expanded. This resulted in macro/register names not being usable
   anymore for such occurences, but makes the code WAY more read-,
   understand- and maintainable.
 - CamelCase was changed to kernel_case
 - All typedef were removed
 - Overall code style was fixed, besides >80char lines in _defs.h and
   _regs.h, checkpatch is happy.
 - Also, signal stat acquisition was made to comply with the DVB API
   ways to do these things.

Permission to reuse and mainline the driver code was formally granted by
Ralph Metzler <rjkm@metzlerbros.de>.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:25:09 -04:00
Daniel Scheller 20e671dff9 media: dvb-frontends/stv{0910,6111}: constify tables
Mark lookup tables and fe_ops things const so the compiler can put them
into .rodata.

While at it, improve name and identifier strings (moddesc, fe_ops).

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:20:57 -04:00
Daniel Scheller 85e36b47ea media: dvb-frontends/stv6111: cosmetics: comments fixup, misc
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:20:28 -04:00
Daniel Scheller 2af07a49dd media: dvb-frontends/stv6111: coding style cleanup
Fix up all remainders reported by checkpatch-strict.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:20:04 -04:00
Daniel Scheller 4f979d5cf0 media: dvb-frontends/stv0910: cosmetics: fixup comments, misc
Fix up block comment style, whitespaces, c++ style comments et al.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:19:37 -04:00
Daniel Scheller ddb6a90dcd media: dvb-frontends/stv0910: further coding style cleanup
Fixes up all remainders reported by "checkpatch.pl --strict"

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:14:09 -04:00
Daniel Scheller 448461af0e media: dvb-frontends/stv0910: implement diseqc_send_burst
This implements the diseqc_send_burst frontend op to support sending
mini-DISEQC bursts. Picked up from dddvb's driver package where this
specific block was disabled via #if 0/#endif, but is still working
according to feedback from upstream, so add it.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:13:19 -04:00
Daniel Scheller 399196ed06 media: dvb-frontends/stv0910: fix STR assignment, remove unneeded var
According to the documentation, FE_SCALE_DECIBEL values should be assigned
to .svalue and not .uvalue, so let's do this. While at it, remove the
unneeded strength var from read_signal_strength().

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 07:11:06 -04:00
Gustavo A. R. Silva 488e27ad81 media: dvb-frontends: mb86a16: remove useless variables in signal_det()
Remove useless variables wait_t and wait_sym and code related.

Also, fix some coding style issues.

Addresses-Coverity-ID: 1226947

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 16:29:11 -04:00
Daniel Scheller d105d08344 media: dvb-frontends/stv0367: improve QAM fe_status
While cab_state->state gives a quite accurate indication of the demod
signal status, it might be incorrect if cab_algo() wasn't able to
determine the exact status, with cab_algo() being the only place where
this status was updated from, and it is only called upon tuning to new
parameters passed to set_frontend(). Thus, the status will be wrong
until the demod is retuned. With the cab_signal_type parsing in
read_status(), this results in unusual fe_states like FE_HAS_SIGNAL |
FE_HAS_CARRIER | FE_HAS_LOCK, which, while userspace applications check
for FE_HAS_LOCK and work fine, leads to missing CNR or UCB stats.

Fix this by re-reading CAB_FSM_STATUS and updating cab_state->state() in
read_status(). While at it, refactor the fsm/qamfeclock and the
fsm->signaltype parsing into separate functions to make things cleaner
and deduplicate code. Also, assume full QAM FEC lock equals full
FE_STATUS.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 15:16:48 -04:00
Colin Ian King 6e4e4447d4 media: dib0090: make const array dib0090_tuning_table_cband_7090e_aci static
Don't populate array dib0090_tuning_table_cband_7090e_aci on the stack but
instead make it static. Makes the object code smaller by over 180 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  40052	   7320	    192	  47564	   b9cc dib0090.o

After:
   text	   data	    bss	    dec	    hex	filename
  39780	   7408	    192	  47380	   b914	dib0090.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 15:08:12 -04:00
Colin Ian King 679cfbb158 media: drxj: make several const arrays static
Don't populate const arrays on the stack but instead make them static.
Makes the object code smaller by over 1800 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  94100	   9160	      0	 103260	  1935c	drxj.o

After:
   text	   data	    bss	    dec	    hex	filename
  91044	  10400	      0	 101444	  18c44	drxj.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 15:07:50 -04:00
Colin Ian King 7f0337086e media: drxd: make const arrays slowIncrDecLUT and fastIncrDecLUT static
Don't populate arrays slowIncrDecLUT and fastIncrDecLUT on the stack but
instead make them static. Makes the object code smaller by over 100 bytes:

   text	   data	    bss	    dec	    hex	filename
  27776	    832	     64	  28672	   7000	drxd_hard.o

   text	   data	    bss	    dec	    hex	filename
  27530	    976	     64	  28570	   6f9a	drxd_hard.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 15:07:28 -04:00
Daniel Scheller bd2355b8ef media: dvb-frontends/cxd2841er: do sleep on delivery system change
Discovered using w_scan when scanning DVB-T/T2: When w_scan goes from -T
to -T2, it does so without stopping the frontend using .sleep. Due to
this, the demod operation mode isn't re-setup, but as it still is in
STATE_ACTIVE_TC, PLP and T2 Profile are set up, but only retune_active()
is called, leaving the demod in T mode, thus not operable on any T2
frequency.

Fix this by putting the demod to sleep if priv->system isn't equal to
p->delsys. To properly accomplish this, sleep_tc() is split into
sleep_tc() and shutdown_tc(), where sleep_tc() will only perform the
sleep operation, while shutdown_tc() additionally performs the full
demod shutdown (to keep the behaviour when the .sleep FE_OP is called).

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 15:06:45 -04:00
Colin Ian King 3802c1bc2c media: dvb-frontends/cxd2841er: make several arrays static
Don't populate arrays on the stack but make them static.  Makes
the object code smaller:

Before:
   text	   data	    bss	    dec	    hex	filename
  89299	  21704	     64	 111067	  1b1db	cxd2841er.o

After:
   text	   data	    bss	    dec	    hex	filename
  85823	  23432	     64	 109319	  1ab07	cxd2841er.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 15:03:07 -04:00
Gustavo A. R. Silva 6ac8b81ec9 media: cx24123: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:58:27 -04:00
Gustavo A. R. Silva c51df136e5 media: zd1301_demod: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:58:10 -04:00
Gustavo A. R. Silva 28e83542cd media: dib8000: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:57:52 -04:00
Gustavo A. R. Silva 053aa4a833 media: s5h1420: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:57:35 -04:00
Gustavo A. R. Silva a76f094a47 media: dib7000p: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:57:19 -04:00
Gustavo A. R. Silva 19779f4052 media: dib9000: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:53:16 -04:00
Daniel Scheller 3658ea39f9 media: dvb-frontends/stv0367: DDB frontend status inquiry fixup
Return 0 instead of -EINVAL in get_frontend if no demod mode is active.
This fixes ie. dvb-fe-tool getting confused and assuming a DVBv3 FE on idle
frontends when the FE has been put to sleep using sleep().

Also, in read_status(), don't immediately return when no demod is active,
so the remaining code has a chance to clear the signal statistics.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:06:56 -04:00
Daniel Scheller 44173fda45 media: dvb-frontends: add ST STV6111 DVB-S/S2 tuner frontend driver
This adds a frontend driver for the ST STV6111 DVB-S/S2 tuners. Like the
stv0910 demod frontend driver, this driver originates from the Digital
Devices' dddvb vendor driver package as of version 0.9.29, and was cleaned
up aswell. No functionality had to be removed though. Any camel case has
been converted to kernel_case, fixup patch has been proposed upstream.

Permission to reuse and mainline the driver code was formally granted by
Ralph Metzler <rjkm@metzlerbros.de>.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 13:04:25 -04:00
Daniel Scheller 2f4675c003 media: dvb-frontends/stv0910: Add missing set_frontend fe-op
This was missing from the frontend_ops.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 13:00:09 -04:00
Daniel Scheller 19bb3b718f media: dvb-frontends/stv0910: Add demod-only signal strength reporting
Original code at least has some signed/unsigned issues, resulting in
values like 32dBm. Implement signal strength readout to work without
asking the attached tuner, and use a lookup table instead of log calc.
Values reported appear plausible, gathered from feedback from several
testers.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 12:59:50 -04:00
Daniel Scheller ea71c62bde media: dvb-frontends/stv0910: add multistream (ISI) and PLS capabilities
Implements stream_id filter and scrambling code setup in start() and also
sets FE_CAN_MULTISTREAM in frontend_ops. This enables the driver to
properly receive and handle multistream transponders, functionality has
been reported working fine by testers with access to such streams, in
conjunction with VDR on the userspace side.

The code snippet originates from the original vendor's dddvb driver
package and has been made working properly with the current in-kernel
DVB core API.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 12:59:03 -04:00
Daniel Scheller 13c8148962 media: dvb-frontends/stv0910: Fix possible buffer overflow
Fixes smatch error:

  drivers/media/dvb-frontends/stv0910.c:715 dvbs2_nbch() error: buffer overflow 'nbch[fectype]' 2 <= 28

Also, fixes the nbch array table by adding the DUMMY_PLF element at the top
to match the enums (table element order was off by one before).

Patch sent upstream aswell.

Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 12:57:59 -04:00
Daniel Scheller cd21b33494 media: dvb-frontends: add ST STV0910 DVB-S/S2 demodulator frontend driver
This adds a multi frontend driver for the ST STV0910 DVB-S/S2 demodulator
frontends. The driver code originates from the Digital Devices' dddvb
vendor driver package as of version 0.9.29, and has been cleaned up from
core API usage which isn't supported yet in the kernel, and additionally
all obvious style issues have been resolved. All camel case and allcaps
have been converted to kernel_case and lowercase. Patches have been sent
to the vendor package maintainers to fix this aswell. Signal statistics
acquisition has been refactored to comply with standards.

Permission to reuse and mainline the driver code was formally granted by
Ralph Metzler <rjkm@metzlerbros.de>.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <r.scobie@clear.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 12:57:11 -04:00
Mauro Carvalho Chehab 430e29d9c0 media: dvb-frontends/stv0367: Improve DVB-C/T frontend status
The stv0367 driver provide a lot of status on its state machine.
Change the logic to provide more information about frontend locking
status. Also, while any detailed status isn't available, provide a more
complete FE_STATUS for DVB-T.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
2017-06-25 10:48:45 -03:00
Daniel Scheller 006fe8ee88 media: dvb-frontends/stv0367: DVB-C signal strength statistics
Provide QAM/DVB-C signal strength in decibel scale. Values returned from
stv0367cab_get_rf_lvl() are good but need to be multiplied as they're in
1dBm precision.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-25 09:10:44 -03:00
Daniel Scheller 87b4671074 media: dvb-frontends/stv0367: update UCB readout condition logic
Since the other statistics are read when fe_status conditions are TRUE,
change the ucblocks readout logic to match this aswell.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-25 09:10:06 -03:00
Mauro Carvalho Chehab f5a1ba833d media: stv0367: prevent division by zero
While there's a test at the SNR calculus to avoid division by
zero, it will still follow the path that would do the division.
So, add a missing break there.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-25 09:07:45 -03:00
Daniel Scheller d394ad12c2 media: dvb-frontends/stv0367: SNR DVBv5 statistics for DVB-C and T
Add signal-to-noise-ratio as provided by the demodulator in decibel scale.
QAM/DVB-C needs some intlog calculation to have usable dB values, OFDM/
DVB-T values from the demod look alright already and are provided as-is.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-25 09:06:32 -03:00
Daniel Scheller 8982735f8d media: dvb-frontends/cxd2841er: require STATE_ACTIVE_* for agc readout
When the demod driver puts the demod into sleep or shutdown state and it's
status is then polled e.g. via "dvb-fe-tool -m", i2c errors are printed
to the kernel log. If the last delsys was DVB-T/T2:

  cxd2841er: i2c wr failed=-5 addr=6c reg=00 len=1
  cxd2841er: i2c rd failed=-5 addr=6c reg=26

and if it was DVB-C:

  cxd2841er: i2c wr failed=-5 addr=6c reg=00 len=1
  cxd2841er: i2c rd failed=-5 addr=6c reg=49

This happens when read_status unconditionally calls into the
read_signal_strength() function which triggers the read_agc_gain_*()
functions, where these registered are polled.

This isn't a critical thing since when the demod is active again, no more
such errors are logged, however this might make users suspecting defects.

Fix this by requiring STATE_ACTIVE_* in priv->state. If it isn't in any
active state, additionally set the strength scale to NOT_AVAILABLE.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-25 09:05:26 -03:00
Daniel Scheller b138afda3c media: dvb-frontends/stv0367: split SNR determination into functions
The read_snr() functions currently do some magic to return relative scale
values when called. Split out register readouts into separate functions
so the functionality can be reused in some other way.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 17:42:47 -03:00
Daniel Scheller 4043eb2325 media: dvb-frontends/stv0367: initial DDB DVBv5 stats, implement ucblocks
This adds the basics to stv0367ddb_read_status() to be able to properly
provide signal statistics in DVBv5 format. Also adds UCB readout and
provides those values. Also, don't return -EINVAL in ddb_read_status()
if active_demod_state indicates no delivery system.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 17:42:18 -03:00
Daniel Scheller e1bdf02488 media: dvb-frontends/lnbh25: improve kernellog output
Use dev_dbg() in conjunction with the %*ph format macro to print the vmon
status debug, thus hiding continuous hexdumping from default log levels.
Also, change the attach success log line from error to info severity.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 17:05:19 -03:00
Martin Kepplinger e1d00cddfb media: dvb-frontends: drx39xyj: remove obsolete sign extend macros
DRX_S9TOS16 and DRX_S24TODRXFREQ are simply not used. Furthermore,
sign_extend32() should be used for sign extension. (Also, the comment
describing DRX_S24TODRXFREQ was wrong). So remove these macros.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 16:01:32 -03:00
Mauro Carvalho Chehab 1250a85b1b media: Replace initalized ->initialized
While committing a change on em28xx, I got a warning of a
typo there. So, fix it on em28xx and on two other media drivers
with the same typo.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 15:46:24 -03:00
Daniel Scheller f9c1e254e1 media: dvb-frontends/stv0367: deduplicate DDB dvb_frontend_ops caps
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 10:47:18 -03:00
Antti Palosaari cdd19b526f [media] af9013: refactor power control
Move power-up and power-down functionality to init/sleep ops and
get rid of old function.

Fixes and simplifies power-up functionality slightly.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:35:08 -03:00
Antti Palosaari 96700d248e [media] af9013: refactor firmware download routine
Refactor firmware download routine.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:28:37 -03:00
Antti Palosaari b2c9523775 [media] af9013: remove unneeded register writes
Removed register writes are already chip defaults, are not required,
are set later or belong to AF9015 USB interface.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:25:40 -03:00
Antti Palosaari eaa455f023 [media] af9013: add configurable TS output pin
On serial TS mode output pin could be selected from D0 or D7.
Add configuration option to for it.

Rename TS mode config option prefix from AF9013_TS_ to AF9013_TS_MODE_.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:24:54 -03:00
Antti Palosaari d029799b2f [media] af9013: add dvbv5 cnr
Add support for DVBv5 CNR.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:23:14 -03:00
Antti Palosaari bf69e07262 [media] af9013: fix error handling
Use typical (return 0/goto err/return err) error handling everywhere.
Add missing error handling where missing.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:22:50 -03:00
Antti Palosaari f458a1bc67 [media] af9013: convert to regmap api
Use regmap for register access. Own low level i2c read and write
routines for regmap is still needed because chip uses single command
byte in addition to typical i2c register access.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:22:11 -03:00
Antti Palosaari cbb2a2999c [media] af9013: fix logging
We can simplify logging as we now have a proper i2c client
to pass for kernel dev_* logging functions.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:18:51 -03:00
Antti Palosaari 903b0e58d8 [media] af9013: use kernel 64-bit division
Replace own binary division with 64-bit multiply and division.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:17:15 -03:00
Antti Palosaari 82d1ce3eba [media] af9013: add i2c client bindings
Add kernel i2c driver bindings.
That allows dev_* logging, regmap and more.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:15:58 -03:00
Antti Palosaari a4e2b6fe0e [media] af9013: move config values directly under driver state
It shorten, as typed chars, access to config values as there is one
pointer less. Also, when config/platform data is passed to driver there
could be some values that are not relevant to store state as such or
not needed to store at all.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:13:14 -03:00
Gustavo A. R. Silva 88c0530f65 [media] af9013: add check on af9013_wr_regs() return value
Check return value from call to af9013_wr_regs(), so in case of
error print debug message and return.

Addresses-Coverity-ID: 1227035

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 10:07:37 -03:00
Daniel Scheller df61f828d4 [media] dvb-frontends/cxd2841er: improved snr reporting
On DVB-T/T2 at least, SNR might be reported as >2500dB, which not only is
just wrong but also ridiculous, so fix this by improving the conversion
of the register value.

The INTLOG10X100 function/macro and the way the values are converted were
both taken from DD's cxd2843 driver.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:56:51 -03:00
Daniel Scheller bf51bbb044 [media] dvb-frontends/cxd2841er: more configurable TSBITS
Bits 3 and 4 of the TSCONFIG register are important for certain hardware
constellations, in that they need to be zeroed. Add a configuration flag
to toggle this.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:56:11 -03:00
Daniel Scheller 14fd86290d [media] dvb-frontends/cxd2841er: configurable IFAGCNEG
Adds a flag to enable or disable the IFAGCNEG bit in cxd2841er_init_tc().

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:55:41 -03:00
Daniel Scheller e3943aa6d8 [media] dvb-frontends/cxd2841er: make lock wait in set_fe_tc() optional
Don't wait for FE_HAS_LOCK in set_frontend_tc() and thus don't hammer the
lock status register with inquiries when CXD2841ER_NO_WAIT_LOCK is set
in the configuration, which also unneccessarily blocks applications until
a TS LOCK has been acquired. Rather, API and applications will check for
a TS LOCK by utilising the tune fe_op, read_status and get_frontend ops,
which is sufficient.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:55:07 -03:00
Daniel Scheller 763f857e40 [media] dvb-frontends/cxd2841er: optionally tune earlier in set_frontend()
When AUTO_IFHZ is set and the tuner is supposed to provide proper IF speed
values, it should be possible to have the tuner setup take place before
the demod is configured, else the demod might be configured with either
wrong (old), or even no values at all, which obviously will cause issues.
To set this behaviour in the most flexible way, this is done with a
separate flag instead of making this depend on AUTO_IFHZ.

It should be evaluated if tuning shouldn't take place earlier in all cases
and hardware constellations.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:54:17 -03:00
Daniel Scheller 7afe510ab2 [media] dvb-frontends/cxd2841er: make ASCOT use optional
The Sony CXD28xx demods may have other tuner types attached to them (e.g.
NXP TDA18212), so don't mandatorily configure and enable the ASCOT
functionality, but make this conditional by a config flag.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:50:06 -03:00
Daniel Scheller 03ab1bd5c2 [media] dvb-frontends/cxd2841er: TS_SERIAL config flag
Some constellations work/need a serial TS transport mode. This adds a flag
that will toggle set up of such mode.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:46:53 -03:00