Re: saa7134 Sabrent TVFM. Changes to radio?

[Asher Glaun <asher@glaun.com>]

SOLVED
Thanks Hermann, I'm not sure if the tuner is different but changing the
card works ...

to play TV
rmmod saa7134_alsa 
rmmod saa7134
modprobe saa7134 card=42 tuner=68   (gives me all 100 channels, audio)

to play radio
rmmod saa7134_alsa 
rmmod saa7134
modprobe saa7134 card=67 radio_nr=0   (radio works beatifully
through /dev/radio0)

I've created 2 launchers on my gnome desktop which run the commands
above and then launch 'radio' or 'tvtime' depending on what I want. 

I works, I'm happy.

Asher.






On Tue, 2008-11-11 at 02:26 +0100, hermann pitton wrote:
> Hi Asher,
> 
> Am Montag, den 10.11.2008, 17:45 -0400 schrieb Asher Glaun:
> > Everything but radio works, i.e. all inputs, TV tuner, audio etc. Command line
> > client “radio” and “gnomeradio” both show signal strength and audio is FM
> > static hiss so I’m sure I’m receiving a signal but cannot tune the card.
> > Changing the frequency in the clients does nothing.
> > 
> > I load modprobe saa7134 card=42 tuner=68 radio_nr=0. This creates /dev/radio0
> > which is where I point “radio” and “gnomeradio”.  Wrote a script to cycle
> > through all the tuners, still the same static. Dual boot machine and radio
> > works flawlessly in MS Vista.
> > 
> > I contacted to Michael Rodríguez-Torrent, an original developer of
> > saa7134-cards.c and he says that the radio was the first thing he got working
> > and that since everything else works he might suspect some changes that are
> > causing problems.  He writes ..
> > 
> > “Your best shot might be a post to the mailing list asking what could have
> > changed with regards to the handling of radios in the module and how the board
> > definition can be updated to reflect that.”
> 
> you most likely have a different tuner on the board.
> 
> On old tin can tuners are only five known different tuner APIs to get
> them into radio mode.
> 
> >From tuner-simple.c.
> 
> static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
> {
> 	struct tuner_simple_priv *priv = fe->tuner_priv;
> 
> 	switch (priv->type) {
> 	case TUNER_TENA_9533_DI:
> 	case TUNER_YMEC_TVF_5533MF:
> 		tuner_dbg("This tuner doesn't have FM. "
> 			  "Most cards have a TEA5767 for FM\n");
> 		return 0;
> 	case TUNER_PHILIPS_FM1216ME_MK3:
> 	case TUNER_PHILIPS_FM1236_MK3:
> 	case TUNER_PHILIPS_FMD1216ME_MK3:
> 	case TUNER_PHILIPS_FMD1216MEX_MK3:
> 	case TUNER_LG_NTSC_TAPE:
> 	case TUNER_PHILIPS_FM1256_IH3:
> 	case TUNER_TCL_MF02GIP_5N:
> 		buffer[3] = 0x19;
> 		break;
> 	case TUNER_TNF_5335MF:
> 		buffer[3] = 0x11;
> 		break;
> 	case TUNER_LG_PAL_FM:
> 		buffer[3] = 0xa5;
> 		break;
> 	case TUNER_THOMSON_DTT761X:
> 		buffer[3] = 0x39;
> 		break;
> 	case TUNER_MICROTUNE_4049FM5:
> 	default:
> 		buffer[3] = 0xa4;
> 		break;
> 	}
> 
> 	return 0;
> }
> 
> And from Documentation/bttv/Tuners.
> 
> 1) Tuner Programming
> ====================
> There are some flavors of Tuner programming APIs.
> These differ mainly by the bandswitch byte.
> 
>     L= LG_API       (VHF_LO=0x01, VHF_HI=0x02, UHF=0x08, radio=0x04)
>     P= PHILIPS_API  (VHF_LO=0xA0, VHF_HI=0x90, UHF=0x30, radio=0x04)
>     T= TEMIC_API    (VHF_LO=0x02, VHF_HI=0x04, UHF=0x01)
>     A= ALPS_API     (VHF_LO=0x14, VHF_HI=0x12, UHF=0x11)
>     M= PHILIPS_MK3  (VHF_LO=0x01, VHF_HI=0x02, UHF=0x04, radio=0x19)
> 
> 
> If the default tuner=17 with old Philips API doesn't work for TV and
> radio, most common for new types is tuner=69 TUNER_TNF_5335MF and
> similar with TI PLLs.
> 
> The Philips MK3 API you currently use expects a tda9887 analog IF
> demodulator with radio support. If that chip exists, it would show up as
> detected in "dmesg" on loading the driver.
> 
> Do you mean you have tested already on tuner=69 too for radio and you
> have TV reception with the UHF=0x04 MK3 switch in that ranges?
> 
> Tuner=68 is very unlikely.
> 
> So, what kind of tuner/components do you have not covered by the
> above ;)
> 
> Cheers,
> Hermann
> 
> 
> 
> 
> 
> 

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