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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Add a AUTO_IFHZ flag and a function that will read IF speed values from any
attached tuner if the tuner supports this and if AUTO_IFHZ is enabled, and
else the passed default value (which probably matches Sony ASCOT tuners)
will be passed back. The returned value is then used to calculate the iffeq
which the demod will be programmed with.
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>
Some cards/bridges wrap i2c_gate_ctrl handling with a mutex_lock(). This is
e.g. done in ddbridge to protect against concurrent tuner access with
regards to the dual tuner HW, where concurrent tuner reconfiguration can
result in tuning fails or bad reception quality. When the tuner driver
additionally tries to open the I2C gate (which e.g. the tda18212 driver
does) when the demod already did this, this will lead to a deadlock. This
makes the calls to i2c_gatectrl from the demod driver optional when the
flag is set, leaving this to the tuner driver. For readability reasons and
to not have the check duplicated multiple times, the setup is factored
into cxd2841er_tuner_set().
This commit also updates the netup card driver (which seems to be the only
consumer of the cxd2841er as of now).
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>
Throughout the patch series some configuration flags will be added to the
demod driver. This patch prepares this by adding the flags var to
struct cxd2841er_config, which will serve as a bitmask to toggle various
options and behaviour in the 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>
The way the MAKE_IFFREQ_CONFIG macros are written make it impossible to
pass regular integers for iffreq calculation, since this will cause "SSE
register return with SSE disabled" compile errors. This changes the
calculation into C functions which also might help when debugging. Also,
expand all passed frequencies from MHz to Hz scale.
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>
Those demods are programmed in the same way as the CXD2841ER/54ER and can
be handled by this driver. Support added in a way matching the existing
code, supported delivery systems are set according to what each demod
supports.
Updates the type string setting used for printing the "attaching..." log
line aswell.
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>
Do unfreeze_regs() directly when accessing the demod registers is done,
and don't have multiple unfreeze's on different conditions, which even
can get prone to errors.
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>
Doing the I2C read operation with two calls to i2c_transfer() causes the
exclusive I2C bus lock of the underlying adapter to be released. While this
isn't an issue if only one demodulator is attached to the bus, having two
or even more causes troubles in that concurrent accesses to the different
demods will cause all kinds of issues due to wrong data being returned on
read operations (for example, the TS config register will be set wrong).
This changes the read_regs() function to do the operation in one go (by
calling i2c_transfer with the whole msg list instead of one by one) to not
loose the I2C bus lock, fixing all sorts of random runtime failures.
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>
This moves the I2C debug dump into the preceding dev_dbg() call by
utilising the %*ph format macro and removes the call to
print_hex_debug_bytes().
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>
This - in conjunction with the previous changes - makes it possible to use
the STV0367 DVB-C/T demodulator driver with Digital Devices hardware having
this demodulator soldered on them (namely CineCTv6 bridges and some earlier
DuoFlex CT addon modules).
The changes do the following:
- add a third *_attach function which will make use of a third frontend_ops
struct which announces both -C and -T support (the same as with DD's own
driver stv0367dd). This is necessary to support both delivery systems
on one FE without having to do large conversions to VB2 or the need to
select either -C or -T mode via modparams and the like. Additionally,
the frontend_ops point to new "glue" functions which will then call into
the existing functionality depending on the active delivery system/demod
state (all used functionality works almost OOTB).
- Demod initialisation has been ported from stv0367dd. DD's driver always
does a full init of both OFDM and QAM cores, with some additional things.
The active delivery system is remembered and upon switch, the Demod will
be reconfigured to work in OFDM or QAM mode (that's what the ddb_setup_XX
functions are used for). Note that in QAM mode, the DD demods work with
an IC speed of 58Mhz. It's not very good to perform full reinits upon
Demod mode changes since in very rare occasions this can lead to the I2C
interface or the whole Demod to crash, requiring a powercycle, thus the
flag to perform full reinit is set to disabled.
- A little enum is added for named identifiers of the current Demod state.
Initialisation code/register writes originate from stv0367dd. Permission
to reuse 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>
Digital Devices uses defaults tables in their stv0367dd demod driver
variant which differ in a few registers, at least enough that no stable
operation can be provided with the tables already present in the driver
(init succeeds and DVB reception works but at least when the driver is
reloaded using rmmod/modprobe, the demod goes into a crashed state in a
way it doesn't react on any I2C command anymore, while even more
side-effects may occur), so there's a good reason to better have another
set of defaults.
Defaults originating from the stv0367dd driver. Permission to reuse them
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>
The values used for comparing symbol rates and the resulting conditional
reg writes seem wrong (rates multiplied by ten), so fix those values.
While this doesn't seem to influence operation, it should be fixed anyway.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
In some configurations (due to different PIN config, wiring or so), the
QAM FECLock might be signalled using a different register than
F367CAB_QAMFEC_LOCK (e.g. F367CAB_DESCR_SYNCSTATE on Digital Devices hw),
so make that register selectable.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Currently, if_khz is set and provided using the configuration var in
struct stv0367_config. However, in some constellations, the value might be
different for differing channel bandwidths or even -T and -C operation.
When e.g. used in conjunction with TDA18212 tuners, the tuner frontend
might be aware of the different freqs. This factors if_khz retrieval in a
function, which checks a new flag if an automatic retrieval attempt should
be made, and if the tuner provides it, use it whenever needed.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Every time dvb_frontend_ops.set_frontend() is called, an almost full reinit
of the demodulator will be performed. While this might cause a slight delay
when switching channels due to all involved tables being rewritten, it can
even be dangerous in certain causes in that the demod may lock up and
requires to be powercycled (this can happen on Digital Devices hardware).
So this adds a flag if it should be done, and to not change behaviour with
existing card support, it'll be enabled in all cases.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This moves the PLL SETUP code from stv0367ter_init() into a dedicated
function, and also make it possible to configure 58Mhz IC speed at
27MHz Xtal (used on STV0367-based DDB cards/modules in QAM mode).
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Move the *ter and *cab st_register tables into a separate header file and
additionally organize them via a multidimensional array, allowing to add
more tables with differing init values, and also prepare for a base init
table which should contain general setup values. Also add a state var to
store the table triplet to be used.
Also fixes three minor style problems reported by checkpatch.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Change defaults table writing so tables can be of dynamic length without
having to keep track of their lengths by adding and evaluating an end
marker (reg 0x0000), also move table writing to a dedicated function to
remove code duplication. Additionally mark st_register tables const since
they're used read-only.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The CPAMP log lines generated in stv0367_ter_check_cpamp() are printed
everytime tuning succeeds or fails, quite cluttering the normal kernel log.
Use dprintk() instead of printk(KERN_ERR...) so that if the information is
needed, it'll be printed when the stv_debug modparam is enabled.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Some hardware and bridges (namely ddbridge) require that tuner access is
limited to one concurrent access and wrap i2c gate control with a
mutex_lock when attaching frontends. According to vendor information, this
is required as concurrent tuner reconfiguration can interfere each other
and at worst cause tuning fails or bad reception quality.
If the demod driver does gate_ctrl before setting up tuner parameters, and
the tuner does another I2C enable, it will deadlock forever when gate_ctrl
is wrapped into the mutex_lock. This adds a flag and a conditional before
triggering gate_ctrl in the demodulator driver.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
