On Sunday 15 September 2013 22:35:20 Andreas Mohr wrote: > Hi, > > On Sun, Sep 15, 2013 at 10:25:45PM +0200, Ondrej Zary wrote: > > On Sunday 15 September 2013 20:49:02 Andreas Mohr wrote: > > BTW. I've got an AZT3328 card and it works fine with your driver. Thanks > > for it. > > What!?!? I didn't quite expect any kernel dev to have that one, too ;)
Don't remember where I got it from but it looked nice so I bought it :) > (got several commits sitting here and waiting for submission though) > > > I'm thinking about doing some reverse-engineering of thunderbird-based > > sound cards (VLSI Thunderbird - Aztech PCI 368-DSP, Thunderbird Avenger - > > Philips Acoustic/Seismic/Rhythmic Edge). > > Oh, nice. I've got the Aztech PCI 368-DSP, too (that was somewhat > obligatory due to having written another Aztech card driver...). > > And yeah, the PCI 368 (etc.) series does seem to be some rather heavy > support hole indeed, IIRC (especially as it's more modern PCI-based and not > ISA). Got it on eBay but the Philips Edge cards are not that uncommon - they were sold here (in Slovakia) too, IIRC. I have Seismic Edge PSC705 (but bought it used). > > > So perhaps ES938 has (perhaps since it might more or less conform to > > > certain standards specs?) another control for PCM output switch as well > > > which would need implementing or simply isn't set properly? > > > (to clarify, we're talking about a switch which would cause output > > > signal to be grabbed pre or post the 3D manipulation block) > > > > The good thing is that there's a datasheet available for ES938 - e.g. at > > http://www.datasheetarchive.com/ES938-datasheet.html > > > > The 3D switch works but the level doesn't. Maybe I should use only the 3 > > specific level values from the datasheet and not a variable scale. Or > > just remove the level control completely as Windows driver does (there's > > only a 3D switch). > > Hmm. Perhaps they removed it "Since It Does Not Work"? ;-P Maybe. The value is configured in the INF file and never changed. > Thanks for hinting at the TLV control dB values thingy! Didn't know that > such thing existed, thus azt3328 does not have it (yet?). It's a nice thing, especially for cards that can go above 0 dB. You then know that the sound can be distorted when you set e.g. PCM volume too high. > > > Perhaps we could have a more verbose message here? > > > That ES938 surely must have some human-readable characteristics... > > > (hmm, what about "ES938 3D audio effects processor found!"?) > > > ((or "Detected ...")) > > > > Yes, that's wrong - it's only for testing purposes. There should probably > > be no message at all as the es18xx driver itself does not display > > anything if everything is OK. > > ...or that, yeah. > > > > Perhaps that check is not specific enough, i.e. it might be useful > > > to figure out a more precise check? > > > > snd_es938_read_reg() checks that the returned data match the format used > > by ES938. Maybe we can reread all the register values back after writing > > to be sure. > > Is there any chip ID/version register to be identified? No, there are only 8 registers, all(? - haven't tested) R/W. -- Ondrej Zary -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/