Date: Thu, 20 Apr 1995 12:43:25 -0500 From: L Jonas Olsson <ljo@amcell2.accumed.com> To: fenner@parc.xerox.com Cc: rgrimes@gndrsh.aac.dev.com, freebsd-hardware@FreeBSD.org, ljo@po.CWRU.Edu Subject: Re: PCI plug-n-play on Intel Premiere Baby II? Message-ID: <199504201743.MAA00831@amcell2.accumed.com> In-Reply-To: <199504191823.LAA02984@gndrsh.aac.dev.com> (rgrimes@gndrsh.aac.dev.com)
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The Intel Premiere II (aka Plato) uses shared ISA interrupts if you don't mark enough ISA interrupts as available (vs "used by ISA card") in the plug and play subportion of the BIOS setup. I've used three PCI cards all at different IRQs on this board. (video, frame grabber, and NCR810). I'm more worried about the things Rod have said about multiple bus masters. I plan to use this board with NCR810 and an Imaging Technology bus-mastering PCI frame grabber. Jonas PS I've succesfully used the BitFlow Raptor PCI frame grabber under FreeBSD. This was all in user mode using /dev/io to read some PCI BIOS variables (memory address and IRQ line) and /dev/mem to mmap the registers and memory (8MB region). This is shared memory access and the read speed is ~15.5MB/s on 90MHz Plato.
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