Trueskew wrote: > I should've let you all know, I'm more of a 2.4 person than a 2.6 person. > So I read what I could on 2.6 difference with 2.4, and it looked like my > easiest choice was to modify the bestcomm code to export a couple tables and > its API functions. I found that kallsyms has almost all of the functions I > needed to resolve (with 'T' next to them), but they were still not working. > I added EXPORT_MODULE(TaskBDReset) and similar declarations in the bestcomm > api code, but that still didn't do the trick for me. So what is the trick? > I think I'm on the right track, I can insmod a module that my driver needs, > see kallsyms get updated, and access the functions directly in my driver. I > hope I'm close to doing something similar with the bestcomm functions, can > anyone offer me some advice on what else I need to do? > > Thanks. Please, check Sylvain's patchset (http://www.246tNt.com/mpc52xx/) _before_ you will do anithing. If be more shortly - Freescale's BestcommAPI _deprecated_ and will _not_ included to 2.6.xxx.
-- Regards Andrey Volkov > > ________________________________ > > From: Trueskew [mailto:trueskew at gmail.com] > Sent: Friday, June 16, 2006 9:47 PM > To: 'linuxppc-embedded at ozlabs.org' > Subject: Using bestcomm in an external module (MPC5200B to be exact) > > > I'm writing a driver for a TI codec attached to the MPC5200B PSC3 codec > lines on a Lite5200b. It's an external module, and I'd like to use Bestcomm > with it. I've already tried a bunch of horrible things to get it to work. > I could say it's close, but by close I mean the FEC still runs, my stuff > doesn't. > > 1. Can the Bestcomm I/F be used by an external module, or is the module > required to be built in if built-in drivers use Bestcomm? TasksInitAPI (no > so bad) and TasksLoadImage (yeah, bad) aren't really supposed to be called > more than once from what I've read, and the kernel loads them for ethernet > and ATA (no disk in my system if that matters). > > 2. If it can be used by an external module, how would I do it? I've tried > compiling the source into my module and replicating the initialization the > kernel does in addition to my own stuff. It's not too bad, though I don't > get any interrupts yet. > > The LTIB from Freescale includes AIC23 and AC97 drivers that use Bestcomm. > I built my kernel with them set as modules, and they had the same unresolved > problems that my driver has on insmod, so I'm pessimistic. If someone could > put me out of my misery one way or another, I'd appreciate it. > > Thanks. > Sal > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded >
