NetBSD/sys/arch/vax/if/if_le.c

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/* $NetBSD: if_le.c,v 1.20 2000/06/29 07:14:17 mrg Exp $ */
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/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
* Simulation Facility, NASA Ames Research Center.
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*
* 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.
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* 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.
*/
/*-
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* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell and Rick Macklem.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)if_le.c 8.2 (Berkeley) 11/16/93
*/
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#include "opt_inet.h"
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#include "bpfilter.h"
#include <sys/param.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <sys/reboot.h>
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#include <uvm/uvm_extern.h>
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#include <net/if.h>
#include <net/if_ether.h>
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#include <net/if_media.h>
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#if INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
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#endif
#include <machine/cpu.h>
#include <machine/nexus.h>
#include <machine/scb.h>
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#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
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#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include "ioconf.h"
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#define LEVEC 0xd4 /* Interrupt vector on 3300/3400 */
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struct le_softc {
struct am7990_softc sc_am7990; /* Must be first */
struct evcnt sc_intrcnt;
volatile u_short *sc_rap;
volatile u_short *sc_rdp;
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};
int le_ibus_match __P((struct device *, struct cfdata *, void *));
void le_ibus_attach __P((struct device *, struct device *, void *));
void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
void lance_copytobuf_gap2 __P((struct lance_softc *, void *, int, int));
void lance_copyfrombuf_gap2 __P((struct lance_softc *, void *, int, int));
void lance_zerobuf_gap2 __P((struct lance_softc *, int, int));
struct cfattach le_ibus_ca = {
sizeof(struct le_softc), le_ibus_match, le_ibus_attach
};
void
lewrcsr(ls, port, val)
struct lance_softc *ls;
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u_int16_t port, val;
{
struct le_softc *sc = (void *)ls;
*sc->sc_rap = port;
*sc->sc_rdp = val;
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}
u_int16_t
lerdcsr(ls, port)
struct lance_softc *ls;
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u_int16_t port;
{
struct le_softc *sc = (void *)ls;
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*sc->sc_rap = port;
return *sc->sc_rdp;
}
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int
le_ibus_match(parent, cf, aux)
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struct device *parent;
struct cfdata *cf;
void *aux;
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{
struct bp_conf *bp = aux;
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if (strcmp("lance", bp->type))
return 0;
return 1;
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}
void
le_ibus_attach(parent, self, aux)
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struct device *parent, *self;
void *aux;
{
struct le_softc *sc = (void *)self;
int *lance_addr;
int i, vec, br;
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sc->sc_rdp = (short *)vax_map_physmem(0x20084400, 1);
sc->sc_rap = sc->sc_rdp + 2;
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/*
* Set interrupt vector, by forcing an interrupt.
*/
scb_vecref(0, 0); /* Clear vector ref */
*sc->sc_rap = LE_CSR0;
*sc->sc_rdp = LE_C0_STOP;
DELAY(100);
*sc->sc_rdp = LE_C0_INIT|LE_C0_INEA;
DELAY(100000);
i = scb_vecref(&vec, &br);
if (i == 0 || vec == 0)
return;
scb_vecalloc(vec, (void (*)(void *))am7990_intr, sc,
SCB_ISTACK, &sc->sc_intrcnt);
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evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
self->dv_xname, "intr");
printf(": vec %o ipl %x\n%s", vec, br, self->dv_xname);
/*
* MD functions.
*/
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sc->sc_am7990.lsc.sc_rdcsr = lerdcsr;
sc->sc_am7990.lsc.sc_wrcsr = lewrcsr;
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sc->sc_am7990.lsc.sc_nocarrier = NULL;
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sc->sc_am7990.lsc.sc_mem =
(void *)uvm_km_valloc(kernel_map, (128 * 1024));
if (sc->sc_am7990.lsc.sc_mem == 0)
return;
ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, 0x20120000,
(128 * 1024) >> VAX_PGSHIFT);
sc->sc_am7990.lsc.sc_addr = 0;
sc->sc_am7990.lsc.sc_memsize = (64 * 1024);
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sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_gap2;
sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_gap2;
sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_gap2;
sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_gap2;
sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_gap2;
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/*
* Get the ethernet address out of rom
*/
lance_addr = (int *)vax_map_physmem(0x20084200, 1);
for (i = 0; i < 6; i++)
sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i];
vax_unmap_physmem((vaddr_t)lance_addr, 1);
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bcopy(self->dv_xname, sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname,
IFNAMSIZ);
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am7990_config(&sc->sc_am7990);
}
/*
* gap2: two bytes of data followed by two bytes of pad.
*
* Buffers must be 4-byte aligned. The code doesn't worry about
* doing an extra byte.
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*/
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void
lance_copytobuf_gap2(sc, fromv, boff, len)
struct lance_softc *sc;
void *fromv;
int boff;
register int len;
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{
volatile caddr_t buf = sc->sc_mem;
register caddr_t from = fromv;
register volatile u_int16_t *bptr;
if (boff & 0x1) {
/* handle unaligned first byte */
bptr = ((volatile u_int16_t *)buf) + (boff - 1);
*bptr = (*from++ << 8) | (*bptr & 0xff);
bptr += 2;
len--;
} else
bptr = ((volatile u_int16_t *)buf) + boff;
while (len > 1) {
*bptr = (from[1] << 8) | (from[0] & 0xff);
bptr += 2;
from += 2;
len -= 2;
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}
if (len == 1)
*bptr = (u_int16_t)*from;
}
void
lance_copyfrombuf_gap2(sc, tov, boff, len)
struct lance_softc *sc;
void *tov;
int boff, len;
{
volatile caddr_t buf = sc->sc_mem;
register caddr_t to = tov;
register volatile u_int16_t *bptr;
register u_int16_t tmp;
if (boff & 0x1) {
/* handle unaligned first byte */
bptr = ((volatile u_int16_t *)buf) + (boff - 1);
*to++ = (*bptr >> 8) & 0xff;
bptr += 2;
len--;
} else
bptr = ((volatile u_int16_t *)buf) + boff;
while (len > 1) {
tmp = *bptr;
*to++ = tmp & 0xff;
*to++ = (tmp >> 8) & 0xff;
bptr += 2;
len -= 2;
}
if (len == 1)
*to = *bptr & 0xff;
}
void
lance_zerobuf_gap2(sc, boff, len)
struct lance_softc *sc;
int boff, len;
{
volatile caddr_t buf = sc->sc_mem;
register volatile u_int16_t *bptr;
if ((unsigned)boff & 0x1) {
bptr = ((volatile u_int16_t *)buf) + (boff - 1);
*bptr &= 0xff;
bptr += 2;
len--;
} else
bptr = ((volatile u_int16_t *)buf) + boff;
while (len > 0) {
*bptr = 0;
bptr += 2;
len -= 2;
}
}