97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
/* $NetBSD: sii_ds.c,v 1.2 1996/10/13 16:59:15 christos Exp $ */
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/*
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* Copyright 1996 The Board of Trustees of The Leland Stanford
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* Junior University. All Rights Reserved.
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*
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* Permission to use, copy, modify, and distribute this
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* software and its documentation for any purpose and without
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* fee is hereby granted, provided that the above copyright
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* notice appear in all copies. Stanford University
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* makes no representations about the suitability of this
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* software for any purpose. It is provided "as is" without
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* express or implied warranty.
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*
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* this driver contributed by Jonathan Stone
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/device.h>
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#include <sys/tty.h>
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#include <machine/autoconf.h>
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#include <pmax/dev/device.h> /* XXX old pmax SCSI drivers */
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#include <pmax/dev/siireg.h>
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#include <pmax/dev/siivar.h>
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#include <pmax/pmax/kn01.h> /* kn01 (ds3100) address constants */
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extern struct cfdriver mainbus_cd; /* XXX */
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/*
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* Autoconfig definition of driver front-end
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*/
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int sii_ds_match __P((struct device * parent, void *cfdata, void *aux));
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void sii_ds_attach __P((struct device *parent, struct device *self, void *aux));
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extern struct cfattach sii_ds_ca;
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struct cfattach sii_ds_ca = {
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sizeof(struct siisoftc), sii_ds_match, sii_ds_attach
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};
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/* define a safe address in the SCSI buffer for doing status & message DMA */
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#define SII_BUF_ADDR (MACH_PHYS_TO_UNCACHED(KN01_SYS_SII_B_START) \
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+ SII_MAX_DMA_XFER_LENGTH * 14)
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/*
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* Match driver on Decstation (2100, 3100, 5100) based on name and probe.
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*/
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int
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sii_ds_match(parent, match, aux)
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struct device *parent;
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void *match;
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void *aux;
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{
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struct confargs *ca = aux;
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register void * siiaddr;
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if (strcmp(ca->ca_name, "sii") != 0 &&
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strncmp(ca->ca_name, "PMAZ-AA ", 8) != 0) /*XXX*/
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return (0);
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/* XXX check for bad address, untested */
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siiaddr = (void *)ca->ca_addr;
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if (siiaddr != (void *)MACH_PHYS_TO_UNCACHED(KN01_SYS_SII)) {
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printf("(siimatch: bad addr %x, substituting %x\n",
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ca->ca_addr, MACH_PHYS_TO_UNCACHED(KN01_SYS_SII));
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siiaddr = (void *)MACH_PHYS_TO_UNCACHED(KN01_SYS_SII);
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}
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if (badaddr(siiaddr, 4))
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return (0);
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return (1);
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}
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void
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sii_ds_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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register struct confargs *ca = aux;
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register struct siisoftc *sc = (struct siisoftc *) self;
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sc->sc_regs = (SIIRegs *)MACH_PHYS_TO_UNCACHED(ca->ca_addr);
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/* set up scsi buffer. XXX Why statically allocated? */
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sc->sc_buf = (void*)(MACH_PHYS_TO_UNCACHED(KN01_SYS_SII_B_START));
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siiattach(sc);
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/* tie pseudo-slot to device */
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BUS_INTR_ESTABLISH(ca, siiintr, sc);
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printf("\n");
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}
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