DVB-C (CT-3650) with UnityMedia CI Module not working

[Timo Schäfer]

Am 26.06.2012 19:46, schrieb Juergen Lock:
> On Tue, Jun 26, 2012 at 07:25:31PM +0200, Juergen Lock wrote:
>> In article <201206261804.05819.hselasky at c2i.net> you write:
>>> On Tuesday 26 June 2012 17:54:28 Timo Schäfer wrote:
>>>> Am 26.06.2012 17:47, schrieb Timo Schäfer:
>>>>> Am 26.06.2012 17:37, schrieb Hans Petter Selasky:
>>>>>> On Monday 25 June 2012 17:48:05 Timo Schäfer wrote:
>>>>>>> ./adapter0/ca0
>>>>>> Can you use the device shown above?
>>>>>>
>>>>>> --HPS
>>>>> how? vdr is not talking to it / does not detect it.
>>>>>
>>>>> under linux vdr looks at the attached ci module and inserted smartcard
>>>>> to unscramble
>>>>> the channel if needed.
>>>>>
>>>>> with my freebsd setup vdr does not detect the ci module and cannot use
>>>>> the smartcard
>>>>> to open the scrambled channels.
>>>>>
>>>>> crw-rw----  1 webcamd  webcamd    0,  97 Jun 26 17:40 ca0
>>>>>
>>>>> has the needed rights, but i guess its not used/detected.
>>>> Ah there is something in /var/log/messages:
>>>>
>>>> Jun 26 14:00:20 barney vdr: [680406016] ERROR: can't get info of CAM
>>>> slot 0 on device 0: Invalid argument
>>>> Jun 26 14:00:28 barney last message repeated 15 times
>>> Hi,
>>>
>>>> does not look good but that seems to be the problem.
>>> Maybe it is a known IOCTL issue. Some IOCTL needs to be fixed before they can
>>> be used, because the RW flags are not correct.
>>>
>>> Try figuring out what IOCTL this is with ktrace or something like that. Or
>>> simply grep in the code for that error message. Then see if the RW flags are
>>> correct.
>> Bingo! :)  At least CA_GET_SLOT_INFO needs to be _IOWR not _IOR.
>> Try this patch in ports/multimedia/v4l_compat/files/patch-dvb-ca.h:
>>
>> --- dvb/ca.h.orig
>> +++ dvb/ca.h
>> @@ -80,7 +80,13 @@ typedef struct ca_pid {
>>   
>>   #define CA_RESET          _IO('o', 128)
>>   #define CA_GET_CAP        _IOR('o', 129, ca_caps_t)
>> +
>> +/* At least CA_GET_SLOT_INFO needs to be _IOWR not _IOR.
>> + * This is wrong on Linux too but there the driver doesn't care.
>> + *
>>   #define CA_GET_SLOT_INFO  _IOR('o', 130, ca_slot_info_t)
>> + */
>> +#define CA_GET_SLOT_INFO  _IOWR('o', 130, ca_slot_info_t)
>>   #define CA_GET_DESCR_INFO _IOR('o', 131, ca_descr_info_t)
>>   #define CA_GET_MSG        _IOR('o', 132, ca_msg_t)
>>   #define CA_SEND_MSG       _IOW('o', 133, ca_msg_t)
>>
>> .and a very similar one in
>> ports/multimedia/webcamd/files/patch-media_tree-include-linux-dvb-ca.h:
>>
>> --- media_tree/include/linux/dvb/ca.h.orig
>> +++ media_tree/include/linux/dvb/ca.h
>> @@ -80,7 +80,13 @@ typedef struct ca_pid {
>>   
>>   #define CA_RESET          _IO('o', 128)
>>   #define CA_GET_CAP        _IOR('o', 129, ca_caps_t)
>> +
>> +/* At least CA_GET_SLOT_INFO needs to be _IOWR not _IOR.
>> + * This is wrong on Linux too but there the driver doesn't care.
>> + *
>>   #define CA_GET_SLOT_INFO  _IOR('o', 130, ca_slot_info_t)
>> + */
>> +#define CA_GET_SLOT_INFO  _IOWR('o', 130, ca_slot_info_t)
>>   #define CA_GET_DESCR_INFO _IOR('o', 131, ca_descr_info_t)
>>   #define CA_GET_MSG        _IOR('o', 132, ca_msg_t)
>>   #define CA_SEND_MSG       _IOW('o', 133, ca_msg_t)
>>
>>   and then rebuild these two and multimedia/vdr too.
>>
>>   Good luck, :)
>> 	Juergen
>>
>> PS: The submitter of the WebcamCompat wiki TT S2-3650 entry told me
>> he tested the CI too, I wonder what he tested...  (Or maybe the old
>> vdr version ignored the error?)
> And seems CA_GET_MSG needs to be _IOWR too, tho vdr doesn't use it
> so the two patches should still be enough for testing.
>
> 	Juergen
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YES!

Thank you Hans Petter and Jürgen,

after applying the patches:

un 26 20:22:23 barney vdr: [680397824] CAM 1: module present
Jun 26 20:22:25 barney vdr: [680397824] CAM 1: module ready
Jun 26 20:22:28 barney vdr: [680397824] CAM 1: AlphaCrypt, 01, 4A20, 4A20
Jun 26 20:22:29 barney vdr: [680403968] CAM 1: assigned to device 1
Jun 26 20:22:33 barney vdr: [680403968] CAM 1: unassigned
Jun 26 20:22:37 barney vdr: [680403968] CAM 1: assigned to device 1

CAM works now and unscrambles the crypted channels my smartcard enables to.

Timo