hermann pitton a écrit :
> Hi,
>
> Am Donnerstag, den 18.09.2008, 18:22 +0200 schrieb wk:
>> Frederic CAND wrote:
>>> Dear all,
>>>
>>> has anyone got analog FM radio working with an Hauppauge HVR 1300 ?
>>> If yes please tell me how ! I got only noise from /dev/dsp* ... :(
>>> This is an issue I've had for some time now ...
>>> I tried option radio=63 on cx88xx module but it did not change anything
>>> (except writing cx88[0]: TV tuner type 63, Radio tuner type 63 in dmesg
>>> instead of radio tuner type -1 ...)
>>>
>>> Is radio support just not implemented ?
>>>
>>>
>> Load cx88_blackbird and open /dev/radioX.
>> I haven't tried radio up to now, but i would expect that only radio *or*
>> dvb works, but not both at the same time. Most probably radio is also
>> not feed trough the mpeg encoder.
>>
>
> a fixme still sticks on radio of the HVR1300.
>
> .audioroute = 2,
> },{
> .type = CX88_VMUX_SVIDEO,
> .vmux = 2,
> .gpio0 = 0xe780,
> .audioroute = 2,
> }},
> /* fixme: Add radio support */
> .mpeg = CX88_MPEG_DVB | CX88_MPEG_BLACKBIRD,
> .radio = {
> .type = CX88_RADIO,
> .gpio0 = 0xe780,
> },
> },
>
> Guess audio routing and switching is not clear yet.
>
> The FMD1216ME supports radio over tda9887 and tda7040.
>
> On the FM1216ME and FM1236 MK3 we can take the stereo indication bit
> from the PLL chip and switch the tda9887 into FM stereo mode
> accordingly. Reading this status information also enables auto scanning
> for radio broadcasts for the applications. (v4l2 aware like kradio
> should be preferred)
>
> This bit does not work on the hybrid FMD1216ME MK3 and you have to
> create a station list manually once, but then stereo radio is fine.
>
> On the later FMD1216MEX, which can also be on that board, Steve
> mentioned once that the radio might be slightly different.
>
> That one is currently treated like the FMD1216ME, but would need its own
> separate tuner type entry in that case.
>
> We also found hints in tuner specs provided by Steve for ivtv, IIRC,
> that an AFC narrowing down looping can be used to take this as kind of
> signal strength detection on the tda9887 alternatively for the stereo
> bit on the pll. Hartmut was aware of it too, but who likes to work on
> analog radio these days ...
I do. As we embedd these cards on our servers we'd like to add this
feature to our products (analog to digital streaming servers).
Anyway, this is a feature of the card which is lacking under Linux so
the question of who is interested in analog radio is not a good
question. The question of why not going as far as possible when
supporting a card is a good question.
So yes I am not afraid of saying I'm interested in analgo radio :)
>
> It is not implemented yet, if it should be related.
>
> Cheers,
> Hermann
>
>
>
Ok so if I get it right, what you're saying is that stereo radio isn't
working on HVR 1300 with FMD1216MEX but mono radio is working ? If yes
I'd like to know how ... shouldn't I just set frequency to /dev/radio,
then get it from /dev/dsp ??? This for me isn't working and providing
only noise.
Now if you tell me this is just not implemented yet, then how could I
help you to implement it ? If it's not scheduled to be implemented one
day then I might be able to work on it at my office (maybe not me
directly but one of my coworkers).
Btw I tried on my KNC TV Station DVR (FM1216ME MK3, saa7134, saa6752hs)
with no success : if I tune to an analog TV station through /dev/video,
I will get sound from /dev/dsp. Then I tune to a radio through
/dev/radio ... but I still get the TV sound from /dev/dsp ...
--
CAND Frederic
Product Manager
ANEVIA
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