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/* $OpenBSD: if_sn_obio.c,v 1.12 1997/04/13 14:14:52 briggs Exp $ */
/*
* Copyright (C) 1997 Allen Briggs
* All rights reserved.
*
* 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 Allen Briggs
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <machine/bus.h>
#include <machine/macinfo.h>
#include <machine/viareg.h>
#include "obiovar.h"
#include "if_snreg.h"
#include "if_snvar.h"
#define SONIC_REG_BASE 0x50F0A000
#define SONIC_PROM_BASE 0x50F08000
static int sn_obio_match __P((struct device *, void *, void *));
static void sn_obio_attach __P((struct device *, struct device *, void *));
static int sn_obio_getaddr __P((struct sn_softc *));
static int sn_obio_getaddr_kludge __P((struct sn_softc *));
struct cfattach sn_obio_ca = {
sizeof(struct sn_softc), sn_obio_match, sn_obio_attach
};
static int
sn_obio_match(parent, vcf, aux)
struct device *parent;
void *vcf;
void *aux;
{
if (mac68k_machine.sonic)
return 1;
return 0;
}
/*
* Install interface into kernel networking data structures
*/
static void
sn_obio_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct obio_attach_args *oa = (struct obio_attach_args *) aux;
struct sn_softc *sc = (void *)self;
int i;
sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK |
DCR_RFT16 | DCR_TFT16;
sc->snr_dcr2 = 0;
switch (current_mac_model->machineid) {
case MACH_MACQ700: case MACH_MACQ900: case MACH_MACQ950:
case MACH_MACQ800: case MACH_MACQ650: case MACH_MACC650:
case MACH_MACC610: case MACH_MACQ610:
sc->snr_dcr |= DCR_EXBUS | DCR_DW32;
sc->bitmode = 1;
break;
case MACH_MACPB500:
sc->snr_dcr |= DCR_SYNC | DCR_LBR | DCR_DW16;
sc->bitmode = 0;
break;
}
sc->sc_regt = oa->oa_tag;
if (bus_space_map(sc->sc_regt, SONIC_REG_BASE, SN_REGSIZE,
0, &sc->sc_regh)) {
panic("failed to map space for SONIC regs.\n");
}
sc->slotno = 9;
/* regs are addressed as words, big-endian. */
for (i = 0; i < SN_NREGS; i++) {
sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2);
}
if (sn_obio_getaddr(sc)) {
printf("Failed to get MAC address. Trying kludge.\n");
if (sn_obio_getaddr_kludge(sc)) {
printf("Kludge failed, too. Attachment failed.\n");
bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
return;
}
}
/* snsetup returns 1 if something fails */
if (snsetup(sc)) {
bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
return;
}
add_nubus_intr(sc->slotno, snintr, (void *)sc);
}
static int
sn_obio_getaddr(sc)
struct sn_softc *sc;
{
bus_space_handle_t bsh;
if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, NBPG, 0, &bsh)) {
panic("failed to map space to read SONIC address.\n");
}
if (!bus_probe(sc->sc_regt, bsh, 0, 1)) {
bus_space_unmap(sc->sc_regt, bsh, NBPG);
return -1;
}
sn_get_enaddr(sc->sc_regt, bsh, 0, sc->sc_arpcom.ac_enaddr);
bus_space_unmap(sc->sc_regt, bsh, NBPG);
return 0;
}
/*
* Assume that the SONIC was initialized in MacOS. This should go away
* when we can properly get the MAC address on the PBs.
*/
static int
sn_obio_getaddr_kludge(sc)
struct sn_softc *sc;
{
int i, ors=0;
/* Shut down NIC */
NIC_PUT(sc, SNR_CR, CR_STP);
wbflush();
NIC_PUT(sc, SNR_CR, CR_RST);
wbflush();
NIC_PUT(sc, SNR_IMR, 0);
wbflush();
NIC_PUT(sc, SNR_ISR, ISR_ALL);
wbflush();
NIC_PUT(sc, SNR_CR, CR_RST);
wbflush();
NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */
wbflush();
i = NIC_GET(sc, SNR_CAP2);
wbflush();
ors |= i;
sc->sc_enaddr[5] = i >> 8;
sc->sc_enaddr[4] = i;
i = NIC_GET(sc, SNR_CAP1);
wbflush();
ors |= i;
sc->sc_enaddr[3] = i >> 8;
sc->sc_enaddr[2] = i;
i = NIC_GET(sc, SNR_CAP0);
wbflush();
ors |= i;
sc->sc_enaddr[1] = i >> 8;
sc->sc_enaddr[0] = i;
NIC_PUT(sc, SNR_CR, 0);
wbflush();
if (ors == 0) return -1;
return (0);
}
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