Re: DM1105: could not attach frontend 195d:1105

[Hendrik Skarpeid <skarp@online.no>]

Igor M. Liplianin skrev:
> On 2 марта 2010, "Igor M. Liplianin" <liplianin@me.by> wrote:
>   
>> Igor M. Liplianin skrev:
>>     
>>> On 23 февраля 2010 15:12:05 Nameer Kazzaz wrote:
>>>       
>>>> Sounds cool, let me know if I can help you with anything.
>>>>
>>>> Thanks
>>>> Nameer
>>>>
>>>> Hendrik Skarpeid wrote:
>>>>         
>>>>> No luck here either, still working on it.
>>>>> My plan is to solder som wires on strategic points on the board and
>>>>> debug i2c and other activity with an oscilloscope. Will probably start
>>>>> next week.
>>>>>
>>>>> Nameer Kazzaz wrote:
>>>>>           
>>>>>> Hey Igor,
>>>>>> I'm getting the same error:
>>>>>> dm1105 0000:04:0b.0: could not attach frontend
>>>>>>
>>>>>> Did you get your one to work.
>>>>>>
>>>>>> Thanks
>>>>>> Nameer
>>>>>>
>>>>>> Igor M. Liplianin wrote:
>>>>>>             
>>>>>>> On 18 февраля 2010, liplianin@me.by wrote:
>>>>>>>               
>>>>>>>> I also got the unbranded dm1105 card. I tried the four possible i2c
>>>>>>>> addresses, just i case. Noen worked of course. Then I traced the i2c
>>>>>>>> pins on the tuner to pins 100 and 101 on the DM1105.
>>>>>>>> These are GPIO pins, so bit-banging i2c on these pins seems to be
>>>>>>>> the solution.
>>>>>>>>
>>>>>>>> scl = p101 = gpio14
>>>>>>>> sda = p100 = gpio13
>>>>>>>>                 
>>>>>>> Here is the patch to test. Use option card=4.
>>>>>>>     modprobe dm1105 card=4
>>>>>>>               
>>> I didn't test patch in real hardware.
>>> But I can connect GPIO14 and GPIO13 to SCL and SDA in any dm1105 card and
>>> test whether it works. Then I will ask you to test also.
>>>
>>>
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>>>
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>>>       
>> Think I solved it.
>> The dm1105_getsda and dm1105_getscl functions need to mask out the other
>> GPIO bits.
>> I hacked the code to return 1 if corresponding GPIO set, and 0 if not
>> set. That did the trick. Now the frontend registers and /dev/dvb is
>> populated. :)
>> Haven't done any tuning yet.
>>     
>
> Do you cut connections between dm1105 i2c pins and the 
> gpio pins you make earlier?
>
>   
Success!

[ 4354.673688] dm1105 0000:03:01.0: PCI INT A -> GSI 19 (level, low) -> 
IRQ 19
[ 4354.673806] DVB: registering new adapter (dm1105)
[ 4354.921866] dm1105 0000:03:01.0: MAC 00:00:00:00:00:00
[ 4355.533170] DVB: registering adapter 0 frontend 0 (SL SI21XX DVB-S)...
[ 4355.533327] input: DVB on-card IR receiver as 
/devices/pci0000:00/0000:00:1e.0/0000:03:01.0/input/input7
[ 4355.533377] Creating IR device irrcv0