[linux-dvb] PATCH: New driver for Zarlink ZL10313 based Compro S350/S300

Jan D. Louw jd.louw at mweb.co.za
Mon Jan 14 20:37:19 CET 2008


> * "Jan D. Louw" <jd.louw at mweb.co.za> wrote:
>> On Sunday 30 December 2007 11:36:12 Tino Reichardt wrote:
>> > * "Jan D. Louw" <jd.louw at mweb.co.za> wrote:
>> > > Hi List,
>> > >
>> > > Attached is a new driver for the Zarlink ZL10313/ZL10039 based Compro
>> > > S350/S300 budget DVB-S cards. Everything except 2 way diseqc should work.
>> >
>> > I will test it on my Avermedia DVB-S Pro, which is ZL10313/ZL10036
>> > based.
>> >
>> > Is it a good idea to rename the the driver to zl1031x.c / zl1003x.c ?
>> >
>> > zl1031x.c: zl100312/zl100313/intel6313
>> > zl1003x.c: zl10036/zl10037/zl10038/zl10039 tuner
>> >
>> > Thanks for the driver, I will try it out ;)
>> 
>> Many have suggested the possibility of combining the vp310,mt312,zl313 and 
>> intel 6313 demodulators into a single driver. Now that the 313 is working 
>> this will be easier.
>> 
>> Unfortunately the zl10036 tuner register map differs from the zl10039 tuner, 
>> so this driver will definitely not work for you. However, writing s zl10036 
>> driver would be trivial, as a full datasheet is available.
> 
> Hello again,
> 
> I have updated my old zl10036 patch, which is located @
> http://www.mcmilk.de/projects/dvb-card/patches/
> 
> It uses the whole patch from "Jan D. Louw" and adds support for the
> zarlink zl10036/38 tuners. But there is some bug in zl1003x_set_params()
> function ... so It doesn't get tuned.
> 
> There is also a file called "everything.log.txt" - this is some test
> tuning to german channels.
> 
> Jan D. Louw, have you an idea, what is wrong in that function ?
> 
> -- 
> regards, TR

Hi Tino,

I had a quick look at the zl10036 datasheet and I can't see anything 
obviously wrong. The formulas look OK. There is one wrong assignment:

if (!priv->has_loopthrough) buf[0] |= 0x01;

and some wrong comments:

         buf[6] = 0xd3;   /*  6: from datasheet */
         buf[7] = 0x40;   /*  7: from datasheet */

but this shouldn't cause it not to work. I suspect this is some obscure 
writing order bug. The zl10038 datasheet does provide more info on 
registers 8-10 which might prove useful.






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