4fd30baf02
and warning/error cleanup.
199 lines
5.7 KiB
C
199 lines
5.7 KiB
C
/* $NetBSD: sebuf.c,v 1.5 1999/04/09 04:26:27 gwr Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Gordon W. Ross.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Sun3/E SCSI/Ethernet board. This is a VME board with some memory,
|
|
* an Intel Ether, and an NCR5380 SCSI with a cheap DMA engine.
|
|
* Note that the SCSI DMA engine can ONLY access the memory on
|
|
* the SE board, NOT the main memory, because it can not master
|
|
* VME transfers.
|
|
*
|
|
* This driver ("sebuf") is the parent of two child drivers:
|
|
* se: yet another variant of NCR 5380 SCSI H/W
|
|
* ie: yet anotehr variant of Intel 82586 Ethernet
|
|
*
|
|
* The job of this parent is to map the memory and partition it for
|
|
* the two children. This driver has no device nodes.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/device.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/tty.h>
|
|
|
|
#include <vm/vm.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/cpu.h>
|
|
|
|
#include "sereg.h"
|
|
#include "sevar.h"
|
|
|
|
#define offsetof(type, member) ((size_t)(&((type *)0)->member))
|
|
|
|
struct sebuf_softc {
|
|
struct device sc_dev; /* base device (required) */
|
|
struct sebuf_regs *sc_regs;
|
|
};
|
|
|
|
/*
|
|
* Autoconfig attachment
|
|
*/
|
|
|
|
static int sebuf_match __P((struct device *, struct cfdata *, void *));
|
|
static void sebuf_attach __P((struct device *, struct device *, void *));
|
|
static int sebuf_print __P((void *, const char *));
|
|
|
|
struct cfattach sebuf_ca = {
|
|
sizeof(struct sebuf_softc), sebuf_match, sebuf_attach
|
|
};
|
|
|
|
static int
|
|
sebuf_match(parent, cf, args)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *args;
|
|
{
|
|
struct confargs *ca = args;
|
|
struct se_regs *sreg;
|
|
struct ie_regs *ereg;
|
|
int pa, x;
|
|
|
|
if (ca->ca_paddr == -1)
|
|
return (0);
|
|
|
|
/* Is it there at all? */
|
|
pa = ca->ca_paddr;
|
|
x = bus_peek(ca->ca_bustype, pa, 2);
|
|
if (x == -1)
|
|
return (0);
|
|
|
|
/* Look at the CSR for the SCSI part. */
|
|
pa = ca->ca_paddr + offsetof(struct sebuf_regs, se_scsi_regs);
|
|
sreg = bus_tmapin(ca->ca_bustype, pa);
|
|
/* Write some bits that are wired to zero. */
|
|
sreg->se_csr = 0xFFF3;
|
|
x = peek_word((caddr_t)(&sreg->se_csr));
|
|
bus_tmapout(sreg);
|
|
if ((x == -1) || (x & 0xFCF0)) {
|
|
#ifdef DEBUG
|
|
printf("sebuf_match: SCSI csr=0x%x\n", x);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
/* Look at the CSR for the Ethernet part. */
|
|
pa = ca->ca_paddr + offsetof(struct sebuf_regs, se_eth_regs);
|
|
ereg = bus_tmapin(ca->ca_bustype, pa);
|
|
/* Write some bits that are wired to zero. */
|
|
ereg->ie_csr = 0x0FFF;
|
|
x = peek_word((caddr_t)(&ereg->ie_csr));
|
|
bus_tmapout(ereg);
|
|
if ((x == -1) || (x & 0xFFF)) {
|
|
#ifdef DEBUG
|
|
printf("sebuf_match: Ether csr=0x%x\n", x);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
/* Default interrupt priority always splbio==2 */
|
|
if (ca->ca_intpri == -1)
|
|
ca->ca_intpri = 2;
|
|
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
sebuf_attach(parent, self, args)
|
|
struct device *parent, *self;
|
|
void *args;
|
|
{
|
|
struct sebuf_softc *sc = (struct sebuf_softc *)self;
|
|
struct confargs *ca = args;
|
|
struct sebuf_attach_args aa;
|
|
struct sebuf_regs *regs;
|
|
|
|
printf("\n");
|
|
|
|
if (ca->ca_intpri != 2)
|
|
panic("sebuf: bad level");
|
|
|
|
/* Map in the whole board. */
|
|
regs = (struct sebuf_regs *)
|
|
bus_mapin(ca->ca_bustype, ca->ca_paddr,
|
|
sizeof(struct sebuf_regs));
|
|
if (regs == NULL)
|
|
panic("sebuf_attach");
|
|
sc->sc_regs = regs;
|
|
|
|
/* Attach the SCSI child. */
|
|
aa.ca = *ca; /* structure copy */
|
|
aa.ca.ca_paddr = 0; /* prevent misuse */
|
|
aa.name = "se";
|
|
aa.buf = ®s->se_scsi_buf[0];
|
|
aa.blen = SE_NCRBUFSIZE;
|
|
aa.regs = ®s->se_scsi_regs;
|
|
(void) config_found(self, (void *) &aa, sebuf_print);
|
|
|
|
/* Attach the Ethernet child. */
|
|
aa.ca.ca_intpri++;
|
|
aa.ca.ca_intvec++;
|
|
aa.name = "ie";
|
|
aa.buf = ®s->se_eth_buf[0];
|
|
aa.blen = SE_IEBUFSIZE;
|
|
aa.regs = ®s->se_eth_regs;
|
|
(void) config_found(self, (void *) &aa, sebuf_print);
|
|
}
|
|
|
|
static int
|
|
sebuf_print(aux, name)
|
|
void *aux;
|
|
const char *name;
|
|
{
|
|
|
|
if (name != NULL)
|
|
printf("%s: ", name);
|
|
|
|
return UNCONF;
|
|
}
|