NetBSD-5.0.2/sys/arch/vax/if/if_le.c
/* $NetBSD: if_le.c,v 1.33 2008/04/28 20:23:39 martin Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* 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.
*
* 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.
*
* 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.
*/
/*-
* 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. 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
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.33 2008/04/28 20:23:39 martin Exp $");
#include "opt_inet.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <uvm/uvm_extern.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#include <machine/cpu.h>
#include <machine/nexus.h>
#include <machine/scb.h>
#include <machine/mainbus.h>
#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include "ioconf.h"
#define LE_VEC 0xd4 /* Interrupt vector on 3300/3400 */
#define LE_CSR 0x20084400
#define LE_ROM 0x20084200
#define LE_RAM 0x20120000
struct le_softc {
struct am7990_softc sc_am7990; /* Must be first */
struct evcnt sc_intrcnt;
volatile uint16_t *sc_rap;
volatile uint16_t *sc_rdp;
};
static int le_mainbus_match(device_t, cfdata_t, void *);
static void le_mainbus_attach(device_t, device_t, void *);
static void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
static uint16_t lerdcsr(struct lance_softc *, uint16_t);
static void lance_copytobuf_gap2(struct lance_softc *, void *, int, int);
static void lance_copyfrombuf_gap2(struct lance_softc *, void *, int, int);
static void lance_zerobuf_gap2(struct lance_softc *, int, int);
CFATTACH_DECL_NEW(le_mainbus, sizeof(struct le_softc),
le_mainbus_match, le_mainbus_attach, NULL, NULL);
void
lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val)
{
struct le_softc * const sc = (void *)ls;
*sc->sc_rap = port;
*sc->sc_rdp = val;
}
uint16_t
lerdcsr(struct lance_softc *ls, uint16_t port)
{
struct le_softc * const sc = (void *)ls;
*sc->sc_rap = port;
return *sc->sc_rdp;
}
int
le_mainbus_match(device_t parent, cfdata_t cf, void *aux)
{
struct mainbus_attach_args * const ma = aux;
int found;
vaddr_t va;
if (strcmp("lance", ma->ma_type))
return 0;
va = vax_map_physmem(LE_CSR, 1);
found = (badaddr((void *)va, 2) == 0);
vax_unmap_physmem(va, 1);
return found;
}
void
le_mainbus_attach(device_t parent, device_t self, void *aux)
{
struct le_softc * const sc = device_private(self);
int *lance_addr;
int i, vec, br;
sc->sc_am7990.lsc.sc_dev = self;
sc->sc_rdp = (uint16_t *)vax_map_physmem(LE_CSR, 1);
sc->sc_rap = sc->sc_rdp + 2;
/*
* 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);
evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
device_xname(self), "intr");
aprint_normal(": vec %o ipl %x\n%s", vec, br, device_xname(self));
/*
* MD functions.
*/
sc->sc_am7990.lsc.sc_rdcsr = lerdcsr;
sc->sc_am7990.lsc.sc_wrcsr = lewrcsr;
sc->sc_am7990.lsc.sc_nocarrier = NULL;
sc->sc_am7990.lsc.sc_mem =
(void *)uvm_km_alloc(kernel_map, (128 * 1024), 0, UVM_KMF_VAONLY);
if (sc->sc_am7990.lsc.sc_mem == 0)
return;
ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, LE_RAM,
(128 * 1024) >> VAX_PGSHIFT);
sc->sc_am7990.lsc.sc_addr = 0;
sc->sc_am7990.lsc.sc_memsize = (64 * 1024);
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;
/*
* Get the ethernet address out of rom
*/
lance_addr = (int *)vax_map_physmem(LE_ROM, 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);
bcopy(device_xname(self), sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname,
IFNAMSIZ);
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.
*/
void
lance_copytobuf_gap2(struct lance_softc *sc, void *fromv, int boff, int len)
{
volatile void *buf = sc->sc_mem;
char *from = fromv;
volatile uint16_t *bptr;
if (boff & 0x1) {
/* handle unaligned first byte */
bptr = ((volatile uint16_t *)buf) + (boff - 1);
*bptr = (*from++ << 8) | (*bptr & 0xff);
bptr += 2;
len--;
} else
bptr = ((volatile uint16_t *)buf) + boff;
while (len > 1) {
*bptr = (from[1] << 8) | (from[0] & 0xff);
bptr += 2;
from += 2;
len -= 2;
}
if (len == 1)
*bptr = (uint16_t)*from;
}
void
lance_copyfrombuf_gap2(struct lance_softc *sc, void *tov, int boff, int len)
{
volatile void *buf = sc->sc_mem;
char *to = tov;
volatile uint16_t *bptr;
uint16_t tmp;
if (boff & 0x1) {
/* handle unaligned first byte */
bptr = ((volatile uint16_t *)buf) + (boff - 1);
*to++ = (*bptr >> 8) & 0xff;
bptr += 2;
len--;
} else
bptr = ((volatile uint16_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(struct lance_softc *sc, int boff, int len)
{
volatile void *buf = sc->sc_mem;
volatile uint16_t *bptr;
if ((unsigned int)boff & 0x1) {
bptr = ((volatile uint16_t *)buf) + (boff - 1);
*bptr &= 0xff;
bptr += 2;
len--;
} else
bptr = ((volatile uint16_t *)buf) + boff;
while (len > 0) {
*bptr = 0;
bptr += 2;
len -= 2;
}
}