Date: Thu, 1 Jun 1995 08:27:05 -0500 From: Jim Lowe <james@allmalt.cs.uwm.edu> To: current@FreeBSD.ORG, sysseh@devetir.qld.gov.au Subject: Re: PAS16 broken when using a 16bit DMA channel Message-ID: <199506011327.IAA21322@allmalt.cs.uwm.edu>
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> When configuring a 16bit DMA channel for the PAS (which it should be able to > use) attempting to send sound down /dev/dsp causes a crash with a trashed > screen, even without having X running. It goes OK (after a fashion I guess) > when you use an 8bit channel. I'm following Jim Lowe's instructions for > setting up a full dupex audio connection (which *almost* works - I think my > machine is too slow). I have run a PAS-16 card with a 16bit DMA channel. I havn't tried it recently since I have been working with gus & gus-max cards. Since you didn't supply a kernel configuration, do you have the following configured? controller snd0 device pas0 as isa? port 0x388 irq 10 drq 6 vector pasintr device sb0 at isa? port 0x220 irq 5 drq 1 vector sbintr device opl0 at isa? port 0x388 conflicts # with pas0 options EXCLUDE_SBPRO options "SBC_IRQ=5" # Must match irq on sb0 line. #options PAS_SYMPHONY # If you have a symphony chip set, pas0. #options BROKEN_BUS_CLOCK# If you have OPTI chips set, pas0. deivce pca0 at isa? PORT IO_TIMER1 tty This was the configuration I used the last time. The sb chip on the pas card can't do 16 bit DMA -- it is the old original chip. If I get a chance today, I will drop my pas card in my machine and make sure it works with this configuration. If you are still having troubles let me know and maybe I can figure something out for you. -Jim
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