[linux-dvb] KNC1 DVB-S CI?

P. van Gaans w3ird_n3rd at gmx.net
Sat Jul 7 21:49:01 CEST 2007

P. van Gaans wrote:
> e9hack wrote:
>> P. van Gaans wrote:
>>> Some more news. I'm now looking at dvb_ca_en50221.c and I'm pretty sure
>>> the solution is in here and not in budget-av.c. Somewhere around line
>>> 270 is a thing that loops in a while and breaks after timeout. I removed
>>> the break (so it keeps looping). Now I see the following when I insert a
>>> CAM:
>>> [   71.764000] budget-av: cam inserted A
>>> [   82.144000] dvb_ca adaptor 0: PC card did not respond :(
>>> So at least there's no more infinite loop with ejected-inserted-ejected
>>> and so on. But it doesn't work either. It reaches 
>>> DVB_CA_SLOTSTATE_WAITREADY and times out there. From there it should 
>>> automatically change state, but it doesn't. Now I'm getting a little 
>>> stuck, because I don't really know what it's doing and what piece really 
>>> gets stuck.
>>> I also removed the timeout from slotstate_waitready, now I don't get 
>>> errors anymore, but it (of course) doesn't work. And I broke the ability 
>>> to eject the CAM, I'm guessing it's stuck in a loop after I ejected and 
>>> re-inserted the CAM.
>> It seems, there is a little bug within the debi functions. If a debi error occurs, SPCI_DEBI_S is not reset within PSR.
>> In this case, saa7146_wait_for_debi_done returns always ETIMEDOUT. Ttpci_budget_debiread/write doesn't upload a debi
>> command anymore. For testing, you can remove the first 'return result;' statement in both functions.
>> - Hartmut
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> I just booted my computer into Windows so I could at least watch TV 
> tonight. Guess not, the Windows software responds like there is no CAM 
> inserted at all.
> Please don't tell me I completely killed the card just by removing some 
> timeouts! I didn't know my hardware could be at risk :( . I wonder if 
> it's really dead :( .
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Things take a whole new turn. Apparently something went wrong with the 
cable to the CI daughterboard, after re-connecting it the card worked 
again in Windows. Now for Linux, with once again the normal v4l-dvb (not 
my modified version):

[  253.420000] budget-av: cam inserted B
[  256.384000] dvb_ca adapter 0: DVB CAM detected and initialised 

Ok! Kaffeine says:

DvbCam::probe(): LLCI slot found on /dev/dvb/adapter0/ca0
DvbCam::probe(): CA module present on /dev/dvb/adapter0/ca0

But... No picture (and no, no sound either). No error visible. I'm now 
100% sure the hardware is OK since it works on Windows now. And the 
messages in Linux make you think it should work here as well. But no 


P. van Gaans

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