Date: Tue, 26 Jun 2012 19:46:14 +0200 From: Juergen Lock <nox@jelal.kn-bremen.de> To: Juergen Lock <nox@jelal.kn-bremen.de> Cc: freebsd-multimedia@freebsd.org Subject: Re: DVB-C (CT-3650) with UnityMedia CI Module not working Message-ID: <20120626174614.GA71689@triton8.kn-bremen.de> In-Reply-To: <201206261725.q5QHPV4r070734@triton8.kn-bremen.de> References: <4FE83768.6000909@itservice-schaefer.de> <4FE9D99F.5000005@itservice-schaefer.de> <4FE9DB34.7010806@itservice-schaefer.de> <201206261725.q5QHPV4r070734@triton8.kn-bremen.de>
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On Tue, Jun 26, 2012 at 07:25:31PM +0200, Juergen Lock wrote:
> In article <201206261804.05819.hselasky@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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