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/* $OpenBSD: if_hme_sbus.c,v 1.17 2022/03/13 13:34:54 mpi Exp $ */
/* $NetBSD: if_hme_sbus.c,v 1.6 2001/02/28 14:52:48 mrg Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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.
*/
/*
* SBus front-end device driver for the HME ethernet device.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>
#include <dev/sbus/sbusvar.h>
#include <dev/ic/hmevar.h>
#include <dev/ofw/openfirm.h>
struct hmesbus_softc {
struct hme_softc hsc_hme; /* HME device */
};
int hmematch_sbus(struct device *, void *, void *);
void hmeattach_sbus(struct device *, struct device *, void *);
const struct cfattach hme_sbus_ca = {
sizeof(struct hmesbus_softc), hmematch_sbus, hmeattach_sbus
};
int
hmematch_sbus(struct device *parent, void *vcf, void *aux)
{
struct cfdata *cf = vcf;
struct sbus_attach_args *sa = aux;
return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 ||
strcmp("SUNW,qfe", sa->sa_name) == 0 ||
strcmp("SUNW,hme", sa->sa_name) == 0);
}
void
hmeattach_sbus(struct device *parent, struct device *self, void *aux)
{
struct sbus_attach_args *sa = aux;
struct hmesbus_softc *hsc = (void *)self;
struct hme_softc *sc = &hsc->hsc_hme;
u_int32_t burst, sbusburst;
/* XXX the following declaration should be elsewhere */
extern void myetheraddr(u_char *);
/* Pass on the bus tags */
sc->sc_bustag = sa->sa_bustag;
sc->sc_dmatag = sa->sa_dmatag;
if (sa->sa_nintr < 1) {
printf(": no interrupt\n");
return;
}
if (sa->sa_nreg < 5) {
printf(": only %d register sets\n", sa->sa_nreg);
return;
}
/*
* Map five register banks:
*
* bank 0: HME SEB registers
* bank 1: HME ETX registers
* bank 2: HME ERX registers
* bank 3: HME MAC registers
* bank 4: HME MIF registers
*
*/
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
(bus_addr_t)sa->sa_reg[0].sbr_offset,
(bus_size_t)sa->sa_reg[0].sbr_size, 0, 0, &sc->sc_seb) != 0) {
printf(": can't map registers\n");
return;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[1].sbr_slot,
(bus_addr_t)sa->sa_reg[1].sbr_offset,
(bus_size_t)sa->sa_reg[1].sbr_size, 0, 0, &sc->sc_etx) != 0) {
printf(": can't map registers\n");
return;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[2].sbr_slot,
(bus_addr_t)sa->sa_reg[2].sbr_offset,
(bus_size_t)sa->sa_reg[2].sbr_size, 0, 0, &sc->sc_erx) != 0) {
printf(": can't map registers\n");
return;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[3].sbr_slot,
(bus_addr_t)sa->sa_reg[3].sbr_offset,
(bus_size_t)sa->sa_reg[3].sbr_size, 0, 0, &sc->sc_mac) != 0) {
printf(": can't map registers\n");
return;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[4].sbr_slot,
(bus_addr_t)sa->sa_reg[4].sbr_offset,
(bus_size_t)sa->sa_reg[4].sbr_size, 0, 0, &sc->sc_mif) != 0) {
printf(": can't map registers\n");
return;
}
if (OF_getprop(sa->sa_node, "local-mac-address",
sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
myetheraddr(sc->sc_arpcom.ac_enaddr);
/*
* Get transfer burst size from PROM and pass it on
* to the back-end driver.
*/
sbusburst = ((struct sbus_softc *)parent)->sc_burst;
if (sbusburst == 0)
sbusburst = SBUS_BURST_32 - 1; /* 1->16 */
burst = getpropint(sa->sa_node, "burst-sizes", -1);
if (burst == -1)
/* take SBus burst sizes */
burst = sbusburst;
/* Clamp at parent's burst sizes */
burst &= sbusburst;
/* Translate into plain numerical format */
if ((burst & SBUS_BURST_64))
sc->sc_burst = 64;
else if ((burst & SBUS_BURST_32))
sc->sc_burst = 32;
else if ((burst & SBUS_BURST_16))
sc->sc_burst = 16;
else
sc->sc_burst = 0;
sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */
/* Establish interrupt handler */
bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0, hme_intr,
sc, self->dv_xname);
hme_config(sc);
}
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