NetBSD/sys/dev/isa/if_fmv.c

382 lines
9.7 KiB
C

/* $NetBSD: if_fmv.c,v 1.23 1998/10/07 04:58:06 enami Exp $ */
/*
* All Rights Reserved, Copyright (C) Fujitsu Limited 1995
*
* This software may be used, modified, copied, distributed, and sold, in
* both source and binary form provided that the above copyright, these
* terms and the following disclaimer are retained. The name of the author
* and/or the contributor 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 AND THE CONTRIBUTOR ``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 OR THE CONTRIBUTOR 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.
*/
/*
* Portions copyright (C) 1993, David Greenman. This software may be used,
* modified, copied, distributed, and sold, in both source and binary form
* provided that the above copyright and these terms are retained. Under no
* circumstances is the author responsible for the proper functioning of this
* software, nor does the author assume any responsibility for damages
* incurred with its use.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/mb86960reg.h>
#include <dev/ic/mb86960var.h>
#include <dev/isa/isavar.h>
#include <dev/isa/if_fereg.h> /* XXX */
int fmv_match __P((struct device *, struct cfdata *, void *));
void fmv_attach __P((struct device *, struct device *, void *));
struct fmv_softc {
struct mb86960_softc sc_mb86960; /* real "mb86960" softc */
/* ISA-specific goo. */
void *sc_ih; /* interrupt cookie */
};
struct cfattach fmv_ca = {
sizeof(struct fmv_softc), fmv_match, fmv_attach
};
#if NetBSD <= 199712
struct cfdriver fmv_cd = {
NULL, "fmv", DV_IFNET
};
#endif
struct fe_simple_probe_struct {
u_char port; /* Offset from the base I/O address. */
u_char mask; /* Bits to be checked. */
u_char bits; /* Values to be compared against. */
};
static __inline__ int fe_simple_probe __P((bus_space_tag_t,
bus_space_handle_t, struct fe_simple_probe_struct const *));
static int fmv_find __P((bus_space_tag_t, bus_space_handle_t, int *,
int *));
static int fmv_detect __P((bus_space_tag_t, bus_space_handle_t,
u_int8_t enaddr[ETHER_ADDR_LEN]));
static int const fmv_iomap[8] = {
0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x300, 0x340
};
#define NFMV_IOMAP (sizeof (fmv_iomap) / sizeof (fmv_iomap[0]))
#define FMV_NPORTS 0x20
/*
* Hardware probe routines.
*/
/*
* Determine if the device is present.
*/
int
fmv_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
int i, iobase, irq, rv = 0;
u_int8_t myea[ETHER_ADDR_LEN];
/* Disallow wildcarded values. */
if (ia->ia_iobase == ISACF_PORT_DEFAULT)
return (0);
/*
* See if the sepcified address is valid for FMV-180 series.
*/
for (i = 0; i < NFMV_IOMAP; i++)
if (fmv_iomap[i] == ia->ia_iobase)
break;
if (i == NFMV_IOMAP) {
#ifdef FMV_DEBUG
printf("fmv_match: unknown iobase 0x%x\n", ia->ia_iobase);
#endif
return (0);
}
/* Map i/o space. */
if (bus_space_map(iot, ia->ia_iobase, FMV_NPORTS, 0, &ioh)) {
#ifdef FMV_DEBUG
printf("fmv_match: couldn't map iospace 0x%x\n",
ia->ia_iobase);
#endif
return (0);
}
if (fmv_find(iot, ioh, &iobase, &irq) == 0) {
#ifdef FMV_DEBUG
printf("fmv_match: fmv_find failed\n");
#endif
goto out;
}
if (iobase != ia->ia_iobase) {
#ifdef FMV_DEBUG
printf("fmv_match: unexpected iobase in board: 0x%x\n",
ia->ia_iobase);
#endif
goto out;
}
if (fmv_detect(iot, ioh, myea) == 0) { /* XXX necessary? */
#ifdef FMV_DEBUG
printf("fmv_match: fmv_detect failed\n");
#endif
goto out;
}
if (ia->ia_irq != ISACF_IRQ_DEFAULT) {
if (ia->ia_irq != irq) {
printf("fmv_match: irq mismatch; "
"kernel configured %d != board configured %d\n",
ia->ia_irq, irq);
goto out;
}
} else
ia->ia_irq = irq;
ia->ia_iosize = FMV_NPORTS;
ia->ia_msize = 0;
rv = 1;
out:
bus_space_unmap(iot, ioh, FMV_NPORTS);
return (rv);
}
/*
* Check for specific bits in specific registers have specific values.
*/
static __inline__ int
fe_simple_probe (iot, ioh, sp)
bus_space_tag_t iot;
bus_space_handle_t ioh;
struct fe_simple_probe_struct const *sp;
{
u_int8_t val;
struct fe_simple_probe_struct const *p;
for (p = sp; p->mask != 0; p++) {
val = bus_space_read_1(iot, ioh, p->port);
if ((val & p->mask) != p->bits) {
#ifdef FMV_DEBUG
printf("fe_simple_probe: %x & %x != %x\n",
val, p->mask, p->bits);
#endif
return (0);
}
}
return (1);
}
/*
* Hardware (vendor) specific probe routines.
*/
/*
* Probe Fujitsu FMV-180 series boards and get iobase and irq from
* board.
*/
static int
fmv_find(iot, ioh, iobase, irq)
bus_space_tag_t iot;
bus_space_handle_t ioh;
int *iobase, *irq;
{
u_int8_t config;
static int const fmv_irqmap[4] = { 3, 7, 10, 15 };
static struct fe_simple_probe_struct const probe_table[] = {
{ FE_DLCR2, 0x70, 0x00 },
{ FE_DLCR4, 0x08, 0x00 },
/* { FE_DLCR5, 0x80, 0x00 }, Doesn't work. */
{ FE_FMV0, FE_FMV0_MAGIC_MASK, FE_FMV0_MAGIC_VALUE },
{ FE_FMV1, FE_FMV1_CARDID_MASK, FE_FMV1_CARDID_ID },
{ FE_FMV3, FE_FMV3_EXTRA_MASK, FE_FMV3_EXTRA_VALUE },
#if 1
/*
* Test *vendor* part of the station address for Fujitsu.
* The test will gain reliability of probe process, but
* it rejects FMV-180 clone boards manufactured by other vendors.
* We have to turn the test off when such cards are made available.
*/
{ FE_FMV4, 0xFF, 0x00 },
{ FE_FMV5, 0xFF, 0x00 },
{ FE_FMV6, 0xFF, 0x0E },
#else
/*
* We can always verify the *first* 2 bits (in Ehternet
* bit order) are "no multicast" and "no local" even for
* unknown vendors.
*/
{ FE_FMV4, 0x03, 0x00 },
#endif
{ 0 }
};
/* Simple probe. */
if (!fe_simple_probe(iot, ioh, probe_table))
return (0);
/* Check if our I/O address matches config info on EEPROM. */
config = bus_space_read_1(iot, ioh, FE_FMV2);
*iobase = fmv_iomap[(config & FE_FMV2_ADDR) >> FE_FMV2_ADDR_SHIFT];
/*
* Determine which IRQ to be used.
*
* In this version, we always get an IRQ assignment from the
* FMV-180's configuration EEPROM, ignoring that specified in
* config file.
*/
*irq = fmv_irqmap[(config & FE_FMV2_IRQ) >> FE_FMV2_IRQ_SHIFT];
return (1);
}
/*
* Determine type and ethernet address.
*/
static int
fmv_detect(iot, ioh, enaddr)
bus_space_tag_t iot;
bus_space_handle_t ioh;
u_int8_t enaddr[ETHER_ADDR_LEN];
{
/* Get our station address from EEPROM. */
bus_space_read_region_1(iot, ioh, FE_FMV4, enaddr, ETHER_ADDR_LEN);
/* Make sure we got a valid station address. */
if ((enaddr[0] & 0x03) != 0x00 ||
(enaddr[0] == 0x00 && enaddr[1] == 0x00 && enaddr[2] == 0x00)) {
#ifdef FMV_DEBUG
printf("fmv_detect: invalid ethernet address\n");
#endif
return (0);
}
/* Determine the card type. */
switch (bus_space_read_1(iot, ioh, FE_FMV0) & FE_FMV0_MODEL) {
case FE_FMV0_MODEL_FMV181:
return (FE_TYPE_FMV181);
case FE_FMV0_MODEL_FMV182:
return (FE_TYPE_FMV182);
}
#ifdef FMV_DEBUG
printf("fmv_detect: unknown card\n");
#endif
/* Unknown card type: maybe a new model, but... */
return (0);
}
void
fmv_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct fmv_softc *isc = (struct fmv_softc *)self;
struct mb86960_softc *sc = &isc->sc_mb86960;
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
u_int8_t myea[ETHER_ADDR_LEN];
const char *typestr;
int type;
printf("\n");
/* Map i/o space. */
if (bus_space_map(iot, ia->ia_iobase, FMV_NPORTS, 0, &ioh)) {
printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
return;
}
sc->sc_bst = iot;
sc->sc_bsh = ioh;
/* Determine the card type. */
type = fmv_detect(iot, ioh, myea);
switch (type) {
case FE_TYPE_FMV181:
typestr = "FMV-181";
break;
case FE_TYPE_FMV182:
typestr = "FMV-182";
break;
default:
/* Unknown card type: maybe a new model, but... */
printf("%s: where did the card go?!\n", sc->sc_dev.dv_xname);
panic("unknown card");
}
printf("%s: %s Ethernet\n", sc->sc_dev.dv_xname, typestr);
/* This interface is always enabled. */
sc->sc_enabled = 1;
/*
* Minimum initialization of the hardware.
* We write into registers; hope I/O ports have no
* overlap with other boards.
*/
/* Initialize ASIC. */
bus_space_write_1(iot, ioh, FE_FMV3, 0);
bus_space_write_1(iot, ioh, FE_FMV10, 0);
/* Wait for a while. I'm not sure this is necessary. FIXME */
delay(200);
/*
* Do generic MB86960 attach.
*/
mb86960_attach(sc, MB86960_TYPE_86960, myea);
/* Is this really needs to be done here? XXX */
/* Turn the "master interrupt control" flag of ASIC on. */
bus_space_write_1(iot, ioh, FE_FMV3, FE_FMV3_ENABLE_FLAG);
mb86960_config(sc, NULL, 0, 0);
/* Establish the interrupt handler. */
isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_NET, mb86960_intr, sc);
if (isc->sc_ih == NULL)
printf("%s: couldn't establish interrupt handler\n",
sc->sc_dev.dv_xname);
}