Hi, At Thu, 6 Jun 2002 11:03:19 +1200, Eliot Blennerhassett wrote: > > (It may be possible to release the host side code, but never the DSP code > on the cards.) it doesn't matter so much, as long as we have an enough working dsp binary code and know its usage.
> I think it would be much better if we had an ALSA driver. yep :)) > I'd like some idea how hard it would be to write an ALSA driver either as a > compatibility layer on top of our existing driver, or from the ground up. I > realise that this is rather a broad question, so please consider this an > invitation to enter discussion, rather than a request for you to go off and > do a lot of work for me. if we have a driver on alsa, then we'd like to integrate it as a "real" alsa one. porting a driver on a wrapper is of course possible but it will bring more difficulty for the maintainence POV. > Oh - what do you think of the cards' feature set? looks good. > Some distinctive things about our cards (not all have all features) - they > have on board DSP. Code is downloaded by the driver. - they have a lot of > on board buffer memory (hundreds of K at least) - on board DSP handles > decompression/compression - mixing - samplerate conversion or multiple > outputs at different rates - analog and digital audio I/O, balanced drivers should the dsp code be loaded statically or dynamically? we can give also a hwdep device to access (load/change) dsp codes independently like on emu10k1 driver. another technical question is the mmap support. if the chip has its own onboard memory, it's likely unaccessible via mmap - this would be a disadvantage. it's not a big problem if the transfer is enough fast, though. ciao, Takashi _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas - http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
