[linux-dvb] Re: [PATCH] Skystar2 pid filters reorganization

[Wolfgang Thiel <w-thiel@gmx.net>]

On Thu, Nov 27, 2003 at 03:56:53PM +0100, Niklas Peinecke wrote:
> ...
> The six hw-filters we're talking about are all "in a line" on the board, 
> so it should be possible to set them with some very small calculations 
> in a single routine.
>
That's easily done: I did it yesterday, but read below.

> ...


I've not tried your patch yet, but I see one problem at a first glance:
perhaps, close_whole_bandwidth() shouldn't be done as it is done now?
It might have been opened, because the software filters need it, then
comes a program opening and closing pid 0x2000: the software filters
will stop to work then, if I'm not mistaken. Perhaps, we need a counter
how often 0x2000 was requested, and only remove it when the counter is 1.


I'm still struggling at another point:
Only three of the old 6 hw filters at 0x300-0x30b are working:
those where the high word is set; setting the low word doesn't seem
to work: if you set an address to 0x00001fff, then a read will return
0x00000000 :-(( Any idea, anyone?

Another question: can somebody explain to me why driver_initialize() is
doing:
        pid_set_group_pid(adapter, 0);
        pid_set_group_mask(adapter, 0x1FE0);
This starts a filter for pids 00-1f, and can never be stopped? (Well,
it can be replaced in open_whole_bandwidth() ?).
Why is it doing this? These are the SI pids, but not every software is
actually needing them.

Wolfgang



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