96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/* $NetBSD: sii_ds.c,v 1.5 1998/01/12 20:12:36 thorpej 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 */
|
|
|
|
/*
|
|
* Autoconfig definition of driver front-end
|
|
*/
|
|
int sii_ds_match __P((struct device* parent, struct cfdata *match,
|
|
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 (MIPS_PHYS_TO_KSEG1(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;
|
|
struct cfdata *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 *)MIPS_PHYS_TO_KSEG1(KN01_SYS_SII)) {
|
|
printf("(siimatch: bad addr %x, substituting %x\n",
|
|
ca->ca_addr, MIPS_PHYS_TO_KSEG1(KN01_SYS_SII));
|
|
siiaddr = (void *)MIPS_PHYS_TO_KSEG1(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 *)MIPS_PHYS_TO_KSEG1(ca->ca_addr);
|
|
|
|
/* set up scsi buffer. XXX Why statically allocated? */
|
|
sc->sc_buf = (void*)(MIPS_PHYS_TO_KSEG1(KN01_SYS_SII_B_START));
|
|
|
|
siiattach(sc);
|
|
|
|
/* tie pseudo-slot to device */
|
|
BUS_INTR_ESTABLISH(ca, siiintr, sc);
|
|
printf("\n");
|
|
}
|