The following patch provides wider carrier search.

As with existing code search starts at MSB aligned. The boundary
is widened to start at -9.  In order to save time, if no carrier is
detected at the start it advances to the next alignment until carrier
is found.

The stv0288 will detect a DVB-S2 carrier on all steps , a
time out of 11 steps is introduced to drop out of the loop.

In stv0288_set_symbol carrier and timing loops are restored to
default values (inittab) before setting the symbol rate on each tune. A
slight drift was noticed with full scan in the higher IF frequencies of
each band.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Register 42 bits 2,3,6 and 7 should be set to 0.
 This gives difficult locking on some channels and may be compensated
 for by other methods.

This affects any driver using the stv0288 frontend on the default
or earda inittab.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

status now returns
 FE_HAS_CARRIER
 FE_HAS_SIGNAL
 FE_HAS_VITERBI
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Fixed problem with DiSEqC communication. The message was wrongly modulated,
so the DiSEqC switch was not work.

This patch fixes DiSEqC messages, simple tone burst and tone on/off.
I verified it with osciloscope against the DiSEqC documentation.

Interface: PCI DVB-S TV tuner TeVii S420
Kernel: 2.6.32-24-generic (UBUNTU 10.4)
Signed-off-by: NJosef Pavlik <josef@pavlik.it>
Tested-by: NMalcolm Priestley <tvboxspy@gmail.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

bit 3(LK) indicates that the Vstatus is locked.
Currently using bit 7(CF) which is usually present, results in early
aborted search in FEC_AUTO and missing channels.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Making static data const avoids allocation of additional r/w memory and
reduces initialisation time.  It also provides some additional opportunities
for compiler optimisations.
Signed-off-by: NLawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch changes most frontend drivers to allocate their state structure via
kzalloc and not kmalloc. This is done to properly initialize the
embedded "struct dvb_frontend frontend" field, that they all have.

The visible effect of this struct being uninitalized is, that the member "id"
that is used to set the name of kernel thread is totally random.

Some board drivers (for example cx88-dvb) set this "id" via
videobuf_dvb_alloc_frontend but most do not.

So I at least get random id values for saa7134, flexcop and ttpci based cards.
It looks like this in dmesg:
DVB: registering adapter 1 frontend -10551321 (ST STV0299 DVB-S)

The related kernel thread then also gets a strange name
like "kdvb-ad-1-fe--1".

Cc: Michael Krufky <mkrufky@linuxtv.org>
Cc: Steven Toth <stoth@linuxtv.org>
Cc: Timothy Lee <timothy.lee@siriushk.com>
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: NMatthias Schwarzott <zzam@gentoo.org>
Acked-by: NAndreas Oberritter <obi@linuxtv.org>
Signed-off-by: NDouglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Allow custom inittab for ST STV0288 demodulator,
as it is needed for DvbWorld USB card.
Signed-off-by: NIgor M. Liplianin <liplianin@me.by>
Signed-off-by: NSteven Toth <stoth@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add support for ST STV0288 demodulator and cards with it,
such as TeVii S420.
Patch is co-authored with Georg Acher <acher@baycom.de>
Signed-off-by: NGeorg Acher <acher@baycom.de>
Signed-off-by: NIgor M. Liplianin <liplianin@me.by>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>