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