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/* $OpenBSD: if_sm_isa.c,v 1.15 2021/03/07 06:17:03 jsg Exp $ */
/* $NetBSD: if_sm_isa.c,v 1.4 1998/07/05 06:49:14 jonathan Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* 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.
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/selinfo.h>
#include <sys/timeout.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <machine/intr.h>
#include <machine/bus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/ic/smc91cxxreg.h>
#include <dev/ic/smc91cxxvar.h>
#include <dev/isa/isavar.h>
int sm_isa_match(struct device *, void *, void *);
void sm_isa_attach(struct device *, struct device *, void *);
struct sm_isa_softc {
struct smc91cxx_softc sc_smc; /* real "smc" softc */
/* ISA-specific goo. */
void *sc_ih; /* interrupt cookie */
};
struct cfattach sm_isa_ca = {
sizeof(struct sm_isa_softc), sm_isa_match, sm_isa_attach
};
int
sm_isa_match(struct device *parent, void *match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
u_int16_t tmp;
int rv = 0;
extern const char *smc91cxx_idstrs[];
/* Disallow wildcarded values. */
if (ia->ia_irq == -1)
return (0);
if (ia->ia_iobase == -1)
return (0);
/* Map i/o space. */
if (bus_space_map(iot, ia->ia_iobase, SMC_IOSIZE, 0, &ioh))
return (0);
/* Check that high byte of BANK_SELECT is what we expect. */
tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
goto out;
/*
* Switch to bank 0 and perform the test again.
* XXX INVASIVE!
*/
bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0);
tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W);
if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE)
goto out;
/*
* Switch to bank 1 and check the base address register.
* XXX INVASIVE!
*/
bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1);
tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W);
if (ia->ia_iobase != ((tmp >> 3) & 0x3e0))
goto out;
/*
* Check for a recognized chip id.
* XXX INVASIVE!
*/
bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3);
tmp = bus_space_read_2(iot, ioh, REVISION_REG_W);
if (smc91cxx_idstrs[RR_ID(tmp)] == NULL)
goto out;
/*
* Assume we have an SMC91Cxx.
*/
ia->ia_iosize = SMC_IOSIZE;
rv = 1;
out:
bus_space_unmap(iot, ioh, SMC_IOSIZE);
return (rv);
}
void
sm_isa_attach(struct device *parent, struct device *self, void *aux)
{
struct sm_isa_softc *isc = (struct sm_isa_softc *)self;
struct smc91cxx_softc *sc = &isc->sc_smc;
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
printf("\n");
/* Map i/o space. */
if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh))
panic("sm_isa_attach: can't map i/o space");
sc->sc_bst = iot;
sc->sc_bsh = ioh;
/* should always be enabled */
sc->sc_enabled = 1;
/* XXX Should get Ethernet address from EEPROM!! */
/* Perform generic initialization. */
smc91cxx_attach(sc, NULL);
/* Establish the interrupt handler. */
isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_NET, smc91cxx_intr, sc, sc->sc_dev.dv_xname);
if (isc->sc_ih == NULL)
printf("%s: couldn't establish interrupt handler\n",
sc->sc_dev.dv_xname);
}
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