On Tue, 2002-09-17 at 11:49, Jaroslav Kysela wrote: > On 16 Sep 2002, Martin Soto wrote: > > Is it possible to load DSP programs to the EMU10K1 chip? The alsa-tools > > package contains a modified as10k1 that allows you to assemble such > > programs, but there's no information about how to upload them to the > > processor. > > The work has not been finished at all. The changes in assembler are > incomplete and the user space linker/loader program is missing at all.
Thanks for the answer. I actually discovered part of it yesterday after I wrote my original mail, by looking directly at the driver code. I'm actually interested in writing a patch loader/manager, and as far as I can see, the driver interface is already there. I haven't tested it thoroughly though, so I'm not sure it is completely operational. But it looks good. And, by the way, I have a question regarding it. In the hardware dependant ioctl interface to the EMU10K1 there are two ioctls, SNDRV_EMU10K1_IOCTL_CODE_PEEK and SNDRV_EMU10K1_IOCTL_CODE_POKE, that allow you to read the DSP code and to actually upload new code. Part of what SNDRV_EMU10K1_IOCTL_CODE_POKE does is defining new (mixer) controls and eventually deleting those that are not needed any more. However, I didn't find a way to know which current mixer controls are *actually* associated to general purpose registers in the FX8010. Of course, I could read the code in emufx.c and determine it from there, but that would make my code very sensible to changes in the driver. I just though of using the mixer/control interface in alsalib to find all controls, and try to delete them with CODE_POKE, hoping that the driver will only delete those that are connected to GPRs, but that looks too much like a hack. Is there a more elegant way to handle that? Cheers, M. S. ----------------------------------------------------------------- Martin Soto AG Software Engineering Universitaet Kaiserslautern Tel: +49 (631) 205-3449 Kaiserslautern, Germany E-mail: [EMAIL PROTECTED] ----------------------------------------------------------------- ------------------------------------------------------- Sponsored by: AMD - Your access to the experts on Hammer Technology! Open Source & Linux Developers, register now for the AMD Developer Symposium. Code: EX8664 http://www.developwithamd.com/developerlab _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
