Yes, I got all that info from the Marion people. While it is good in some places, it lacks in others. I guess that is the way it is. If anyone would like, I can post information somewhere (just tell me).
As for DMA, no the card doesn't use it. The card has local memory (24 of 32 bits implemented) where the samples are stored. It has room for a bunch of samples seperate for each channel (for both input and output). And so it goes. I will look into the other documents for clues. Thanks for pointers, etc... Tom Watson --- Martin Langer <[EMAIL PROTECTED]> wrote: > On Sun, Mar 23, 2003 at 04:05:30PM +0100, PIETER PALMERS wrote: > > The best starting point is gathering info. Without good info, > developement isn't > > easy. But you seem to be lucky, because I found the following on > the website of > > Marian (www.marian.de): > > "Developers of drivers can obtain all information on the hardware > architecture > > of our cards, which is necessary for developing drivers for such > operating > > systems that are not supplied." > > > > I'd say getting this info is the first step. > > > > Next I'd recommend you to read the "Writing an alsa driver" > document by Takashi > > Iwai. It can be found on the ASLA website. You could try and find > an existing > > ALSA driver of a card that resembles your cards architecure. Might > be usefull > > when reading the tutorial. After finishing the tutorial, you'll > know what to do. > > > > btw: are you sure the card doesn't support DMA? The PLX 9052 > supports DMA, and I > > can't imagine Marian not using it. > > Doesn't use DMA?! Maybe this card runs in the same way like the rme > cards > (rme32, rme96, rme9652, hdsp): In this case you copy data from/to the > card and > set a startbit on the register. After that you get an interrupt. You > can > read that details in the RME Digi96 document, which you can found on > ftp.alsa-project.org. Those cards were alsa using a Xilinx FPGA and I > think > that they are in some way related to your Marian/Sek'd. (BTW: RME > Digi32 was > also sold by Sek'd!). I don't know the details about the pdplus > driver, but > maybe it's also interesting for you, because it can be related in > some manner. > > The first step of writing a driver should be the pci detection > without any > driver functionality (study that manual "Writing an alsa driver" > therefore > or look at other pci driver code). And if you can modprobe/rmmod an > empty > module you can start implementing some functionality to it. > > > martin ===== -- Tom Watson [EMAIL PROTECTED] __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
