Date: Sat, 12 Jun 1999 23:38:40 +0300 (EEST) From: Juha Nurmela <junki@qn-lpr2-98.quicknet.inet.fi> To: just matt <matt@dqc.org> Cc: freebsd-multimedia@freebsd.org Subject: Re: No sound with fxtv Message-ID: <Pine.BSF.4.05.9906122315110.18106-100000@pena.oh5nxo.ampr.org> In-Reply-To: <Pine.BSO.4.10.9906121258530.2578-100000@dqc.org>
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On Sat, 12 Jun 1999, just matt wrote: > surprise me. I'll take a look at the data sheet, though I can't say I've > worked on this bt848 driver whatsoever, so it probably won't make a whole > lot of sense. Also, I tried including a kernel config options options > BKTR_NO_MSP_RESET and did a soft boot after initializing the windoze > driver with no luck, so that is out. Although the adverts say "no radio", nothing prevents one to configure the audio-chip and pll for radio reception. In fact, two near mono channels can be listened concurrently ! There are nice "example telegrams" somewhere in the end of the spec, adding appropriate writes to msp_autodetect() at the end of the driver should be straightforward. Conveniently the 'autodetect' command is just the same between 34xxD and 34xxG. Looks like it is not enough. I'd start by adding a msp_write(bktr, 0x10, 0x0030, ???) into the MODUS, with appropriate bits to give precedence for US broadcasts, there's a table in the spec; and another to FM-PRESCALE, setting it to the max. Note that modus must be written before auto-detect command. NICAM reception here had a similar quirk, it was receiving okay, but the level was so low it was totally unaudible. 7Fh into NICAM-PRESCALE did the trick. Juha To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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