[linux-dvb] STB6100, STB0899 programming information?

thomas schorpp t.schorpp at gmx.de
Tue Aug 29 14:07:37 CEST 2006


Wolfgang Wegner wrote:
> On Tue, Aug 29, 2006 at 10:26:06AM +0200, thomas schorpp wrote:
> 
>>Jason Filos wrote:
>>
>>>It CAN be, infact STB0899 has 242 registers ...
>>
>>registers or adress space? are you sure?
> 
> 
> AFAIR it has around 150 registers, many of them 16 or 32 Bit in size.

i see.

> 
> 
>>>But there is already a DVB driver for the STB0899, how come there is no
>>>information available to build the DVBS2, I dont really understand what the
>>>problem is here.
>>
>>hardware specific adaption, it seems.
> 
> 
> In DVB-S mode, only few of the registers are used. It is basically like
> in older STV0299, you set the registers and wait until the demod is
> locked. In DVB-S2 mode, you have to build several loops in software,
> together with the bigger amount of registers (and much more complicated
> addressing scheme) it makes things a bit less easy.

cool. will surely require multithreading and/or complex interrupt-handling and possibly complex math, 
all within a kernel-mode driver on cpus overloaded with h.264 software decoding...

my best wishes.

> 
> Regards,
> Wolfgang
> 
> 

y
tom



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