228 lines
6.5 KiB
C
228 lines
6.5 KiB
C
/* $NetBSD: if_le_lebuffer.c,v 1.11 2002/03/20 20:39:15 eeh Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
|
|
* Simulation Facility, NASA Ames Research Center; 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 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 <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: if_le_lebuffer.c,v 1.11 2002/03/20 20:39:15 eeh Exp $");
|
|
|
|
#include "opt_inet.h"
|
|
#include "bpfilter.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/device.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_ether.h>
|
|
#include <net/if_media.h>
|
|
|
|
#ifdef INET
|
|
#include <netinet/in.h>
|
|
#include <netinet/if_inarp.h>
|
|
#endif
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
#include <machine/autoconf.h>
|
|
|
|
#include <dev/sbus/sbusvar.h>
|
|
#include <dev/sbus/lebuffervar.h>
|
|
|
|
#include <dev/ic/lancereg.h>
|
|
#include <dev/ic/lancevar.h>
|
|
#include <dev/ic/am7990reg.h>
|
|
#include <dev/ic/am7990var.h>
|
|
|
|
/*
|
|
* LANCE registers.
|
|
*/
|
|
#define LEREG1_RDP 0 /* Register Data port */
|
|
#define LEREG1_RAP 2 /* Register Address port */
|
|
|
|
struct le_softc {
|
|
struct am7990_softc sc_am7990; /* glue to MI code */
|
|
struct sbusdev sc_sd; /* sbus device */
|
|
bus_space_tag_t sc_bustag;
|
|
bus_dma_tag_t sc_dmatag;
|
|
bus_space_handle_t sc_reg; /* LANCE registers */
|
|
};
|
|
|
|
|
|
int lematch_lebuffer __P((struct device *, struct cfdata *, void *));
|
|
void leattach_lebuffer __P((struct device *, struct device *, void *));
|
|
|
|
/*
|
|
* Media types supported.
|
|
*/
|
|
static int lemedia[] = {
|
|
IFM_ETHER|IFM_10_T,
|
|
};
|
|
#define NLEMEDIA (sizeof(lemedia) / sizeof(lemedia[0]))
|
|
|
|
struct cfattach le_lebuffer_ca = {
|
|
sizeof(struct le_softc), lematch_lebuffer, leattach_lebuffer
|
|
};
|
|
|
|
extern struct cfdriver le_cd;
|
|
|
|
#if defined(_KERNEL_OPT)
|
|
#include "opt_ddb.h"
|
|
#endif
|
|
|
|
#ifdef DDB
|
|
#define integrate
|
|
#define hide
|
|
#else
|
|
#define integrate static __inline
|
|
#define hide static
|
|
#endif
|
|
|
|
static void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
|
|
static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
|
|
|
|
static void
|
|
lewrcsr(sc, port, val)
|
|
struct lance_softc *sc;
|
|
u_int16_t port, val;
|
|
{
|
|
struct le_softc *lesc = (struct le_softc *)sc;
|
|
|
|
bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
|
|
bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val);
|
|
|
|
#if defined(SUN4M)
|
|
/*
|
|
* We need to flush the Sbus->Mbus write buffers. This can most
|
|
* easily be accomplished by reading back the register that we
|
|
* just wrote (thanks to Chris Torek for this solution).
|
|
*/
|
|
if (CPU_ISSUN4M) {
|
|
volatile u_int16_t discard;
|
|
discard = bus_space_read_2(lesc->sc_bustag, lesc->sc_reg,
|
|
LEREG1_RDP);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static u_int16_t
|
|
lerdcsr(sc, port)
|
|
struct lance_softc *sc;
|
|
u_int16_t port;
|
|
{
|
|
struct le_softc *lesc = (struct le_softc *)sc;
|
|
|
|
bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
|
|
return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP));
|
|
}
|
|
|
|
int
|
|
lematch_lebuffer(parent, cf, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *aux;
|
|
{
|
|
struct sbus_attach_args *sa = aux;
|
|
|
|
return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0);
|
|
}
|
|
|
|
|
|
void
|
|
leattach_lebuffer(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct sbus_attach_args *sa = aux;
|
|
struct le_softc *lesc = (struct le_softc *)self;
|
|
struct lance_softc *sc = &lesc->sc_am7990.lsc;
|
|
struct lebuf_softc *lebuf = (struct lebuf_softc *)parent;
|
|
/* XXX the following declarations should be elsewhere */
|
|
extern void myetheraddr __P((u_char *));
|
|
|
|
lesc->sc_bustag = sa->sa_bustag;
|
|
lesc->sc_dmatag = sa->sa_dmatag;
|
|
|
|
if (sbus_bus_map(sa->sa_bustag,
|
|
sa->sa_slot,
|
|
sa->sa_offset,
|
|
sa->sa_size,
|
|
0, &lesc->sc_reg)) {
|
|
printf("%s @ lebuffer: cannot map registers\n", self->dv_xname);
|
|
return;
|
|
}
|
|
|
|
sc->sc_mem = lebuf->sc_buffer;
|
|
sc->sc_memsize = lebuf->sc_bufsiz;
|
|
sc->sc_addr = 0; /* Lance view is offset by buffer location */
|
|
lebuf->attached = 1;
|
|
|
|
/* That old black magic... */
|
|
sc->sc_conf3 = PROM_getpropint(sa->sa_node, "busmaster-regval",
|
|
LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON);
|
|
|
|
/* Assume SBus is grandparent */
|
|
lesc->sc_sd.sd_reset = (void *)lance_reset;
|
|
sbus_establish(&lesc->sc_sd, parent);
|
|
|
|
sc->sc_supmedia = lemedia;
|
|
sc->sc_nsupmedia = NLEMEDIA;
|
|
sc->sc_defaultmedia = lemedia[0];
|
|
|
|
myetheraddr(sc->sc_enaddr);
|
|
|
|
sc->sc_copytodesc = lance_copytobuf_contig;
|
|
sc->sc_copyfromdesc = lance_copyfrombuf_contig;
|
|
sc->sc_copytobuf = lance_copytobuf_contig;
|
|
sc->sc_copyfrombuf = lance_copyfrombuf_contig;
|
|
sc->sc_zerobuf = lance_zerobuf_contig;
|
|
|
|
sc->sc_rdcsr = lerdcsr;
|
|
sc->sc_wrcsr = lewrcsr;
|
|
|
|
am7990_config(&lesc->sc_am7990);
|
|
|
|
/* Establish interrupt handler */
|
|
if (sa->sa_nintr != 0)
|
|
(void)bus_intr_establish(lesc->sc_bustag, sa->sa_pri,
|
|
IPL_NET, 0, am7990_intr, sc);
|
|
}
|