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/* $OpenBSD: if_sn_obio.c,v 1.23 2006/03/23 04:17:23 brad Exp $ */
/* $NetBSD: if_sn_obio.c,v 1.9 1997/04/22 20:56:15 scottr 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 <uvm/uvm_extern.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/viareg.h>
#include <mac68k/dev/obiovar.h>
#include <mac68k/dev/if_snreg.h>
#include <mac68k/dev/if_snvar.h>
#define SONIC_REG_BASE 0x50F0A000
#define SONIC_PROM_BASE 0x50F08000
static int sn_obio_match(struct device *, void *, void *);
static void sn_obio_attach(struct device *, struct device *, void *);
static int sn_obio_getaddr(struct sn_softc *, u_int8_t *);
static int sn_obio_getaddr_kludge(struct sn_softc *, u_int8_t *);
struct cfattach sn_obio_ca = {
sizeof(struct sn_softc), sn_obio_match, sn_obio_attach
};
static int
sn_obio_match(struct device *parent, void *cf, void *aux)
{
struct obio_attach_args *oa = (struct obio_attach_args *)aux;
bus_space_handle_t bsh;
int found = 0;
if (!mac68k_machine.sonic)
return 0;
if (bus_space_map(oa->oa_tag,
SONIC_REG_BASE, SN_REGSIZE, 0, &bsh))
return 0;
if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 4))
found = 1;
bus_space_unmap(oa->oa_tag, bsh, SN_REGSIZE);
return found;
}
/*
* Install interface into kernel networking data structures
*/
static void
sn_obio_attach(struct device *parent, struct device *self, void *aux)
{
struct obio_attach_args *oa = (struct obio_attach_args *)aux;
struct sn_softc *sc = (void *)self;
u_int8_t myaddr[ETHER_ADDR_LEN];
int i;
sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
sc->snr_dcr2 = 0;
sc->slotno = 9;
switch (current_mac_model->machineid) {
case MACH_MACC610:
case MACH_MACC650:
case MACH_MACQ610:
case MACH_MACQ650:
case MACH_MACQ700:
case MACH_MACQ800:
case MACH_MACQ900:
case MACH_MACQ950:
sc->snr_dcr |= DCR_EXBUS;
sc->bitmode = 1;
break;
case MACH_MACLC575:
case MACH_MACP580:
case MACH_MACQ630:
break;
case MACH_MACPB500:
sc->snr_dcr |= DCR_SYNC | DCR_LBR;
sc->bitmode = 0; /* 16 bit interface */
break;
default:
printf(": unsupported machine type\n");
return;
}
sc->sc_regt = oa->oa_tag;
if (bus_space_map(sc->sc_regt,
SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) {
printf(": failed to map space for SONIC regs.\n");
return;
}
/* 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);
}
/*
* Kind of kludge this. Comm-slot cards do not really
* have a visible type, as far as I can tell at this time,
* so assume that MacOS had it properly configured and use
* that configuration.
*/
switch (current_mac_model->machineid) {
case MACH_MACLC575:
case MACH_MACP580:
case MACH_MACQ630:
NIC_PUT(sc, SNR_CR, CR_RST); wbflush();
i = NIC_GET(sc, SNR_DCR);
sc->snr_dcr |= (i & 0xfff0);
sc->bitmode = (i & DCR_DW) ? 1 : 0;
break;
default:
break;
}
if (sn_obio_getaddr(sc, myaddr) &&
sn_obio_getaddr_kludge(sc, myaddr)) { /* XXX kludge for PB */
printf(": failed to get MAC address.\n");
bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
return;
}
printf(": integrated ethernet adapter, ");
/* snsetup returns 1 if something fails */
if (snsetup(sc, myaddr)) {
bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
return;
}
if (mac68k_machine.aux_interrupts)
intr_establish(snintr, sc, 3, sc->sc_dev.dv_xname);
else
add_nubus_intr(sc->slotno, snintr, sc, sc->sc_dev.dv_xname);
}
static int
sn_obio_getaddr(struct sn_softc *sc, u_int8_t *lladdr)
{
bus_space_handle_t bsh;
if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, PAGE_SIZE, 0, &bsh)) {
printf(": failed to map space to read SONIC address.\n%s",
sc->sc_dev.dv_xname);
return (-1);
}
if (!mac68k_bus_space_probe(sc->sc_regt, bsh, 0, 1)) {
bus_space_unmap(sc->sc_regt, bsh, PAGE_SIZE);
return (-1);
}
sn_get_enaddr(sc->sc_regt, bsh, 0, lladdr);
bus_space_unmap(sc->sc_regt, bsh, PAGE_SIZE);
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(struct sn_softc *sc, u_int8_t *lladdr)
{
int i, ors = 0;
/* Shut down NIC */
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;
lladdr[5] = i >> 8;
lladdr[4] = i;
i = NIC_GET(sc, SNR_CAP1);
wbflush();
ors |= i;
lladdr[3] = i >> 8;
lladdr[2] = i;
i = NIC_GET(sc, SNR_CAP0);
wbflush();
ors |= i;
lladdr[1] = i >> 8;
lladdr[0] = i;
NIC_PUT(sc, SNR_CR, 0);
wbflush();
if (ors == 0)
return (-1);
return (0);
}
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