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NetBSD/sys/arch/sparc64/dev/if_le.c

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/* $NetBSD: if_le.c,v 1.6 1998/08/27 11:43:14 mrg 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 and 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.
* 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.
*/
/*-
* Copyright (c) 1996
* The President and Fellows of Harvard College. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell and Rick Macklem.
*
* 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 Aaron Brown and
* Harvard University.
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)if_le.c 8.2 (Berkeley) 11/16/93
*/
#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/autoconf.h>
#include <machine/cpu.h>
#include <dev/sbus/sbusvar.h>
#include <sparc64/dev/dmareg.h>
#include <sparc64/dev/dmavar.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>
#include <sparc64/dev/if_lereg.h>
#include <sparc64/dev/if_levar.h>
int lematch_byname __P((struct device *, struct cfdata *, void *));
int lematch_obio __P((struct device *, struct cfdata *, void *));
void leattach_sbus __P((struct device *, struct device *, void *));
void leattach_ledma __P((struct device *, struct device *, void *));
void leattach_lebuffer __P((struct device *, struct device *, void *));
void leattach_obio __P((struct device *, struct device *, void *));
void leattach __P((struct le_softc *, int));
#if 0
#if defined(SUN4M) /* XXX */
int myleintr __P((void *));
int ledmaintr __P((struct dma_softc *));
int
myleintr(arg)
void *arg;
{
register struct le_softc *lesc = arg;
static int dodrain=0;
if (lesc->sc_dma->sc_regs->csr & D_ERR_PEND) {
dodrain = 1;
return ledmaintr(lesc->sc_dma);
}
if (dodrain) { /* XXX - is this necessary with D_DSBL_WRINVAL on? */
#define E_DRAIN 0x400 /* XXX: fix dmareg.h */
int i = 10;
while (i-- > 0 && (lesc->sc_dma->sc_regs->csr & D_DRAINING))
delay(1);
}
return (am7990_intr(arg));
}
#endif
#endif
#if defined(SUN4M)
/*
* Media types supported by the Sun4m.
*/
int lemediasun4m[] = {
IFM_ETHER|IFM_10_T,
IFM_ETHER|IFM_10_5,
IFM_ETHER|IFM_AUTO,
};
#define NLEMEDIASUN4M (sizeof(lemediasun4m) / sizeof(lemediasun4m[0]))
void lesetutp __P((struct lance_softc *));
void lesetaui __P((struct lance_softc *));
int lemediachange __P((struct lance_softc *));
void lemediastatus __P((struct lance_softc *, struct ifmediareq *));
#endif /* SUN4M */
/* Four attachments for this device */
struct cfattach le_sbus_ca = {
sizeof(struct le_softc), lematch_byname, leattach_sbus
};
struct cfattach le_ca = {
sizeof(struct le_softc), lematch_byname, leattach_ledma
};
#if 0
struct cfattach le_lebuffer_ca = {
sizeof(struct le_softc), lematch_byname, leattach_lebuffer
};
#endif
struct cfattach le_obio_ca = {
sizeof(struct le_softc), lematch_obio, leattach_obio
};
extern struct cfdriver le_cd;
#if defined(_KERNEL) && !defined(_LKM)
#include "opt_ddb.h"
#endif
#ifdef DDB
#define integrate
#define hide
#else
#define integrate static __inline
#define hide static
#endif
hide void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
hide u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
hide void lehwreset __P((struct lance_softc *));
hide void lehwinit __P((struct lance_softc *));
hide void lenocarrier __P((struct lance_softc *));
hide void
lewrcsr(sc, port, val)
struct lance_softc *sc;
u_int16_t port, val;
{
register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
#if defined(SUN4M)
volatile u_int16_t discard;
#endif
ler1->ler1_rap = port;
ler1->ler1_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)
discard = ler1->ler1_rdp;
#endif
}
hide u_int16_t
lerdcsr(sc, port)
struct lance_softc *sc;
u_int16_t port;
{
register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
u_int16_t val;
ler1->ler1_rap = port;
val = ler1->ler1_rdp;
return (val);
}
#if defined(SUN4M)
void
lesetutp(sc)
struct lance_softc *sc;
{
struct le_softc *lesc = (struct le_softc *)sc;
lesc->sc_dma->sc_regs->csr |= DE_AUI_TP;
delay(20000); /* must not touch le for 20ms */
}
void
lesetaui(sc)
struct lance_softc *sc;
{
struct le_softc *lesc = (struct le_softc *)sc;
lesc->sc_dma->sc_regs->csr &= ~DE_AUI_TP;
delay(20000); /* must not touch le for 20ms */
}
int
lemediachange(sc)
struct lance_softc *sc;
{
struct ifmedia *ifm = &sc->sc_media;
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
return (EINVAL);
/*
* Switch to the selected media. If autoselect is
* set, we don't really have to do anything. We'll
* switch to the other media when we detect loss of
* carrier.
*/
switch (IFM_SUBTYPE(ifm->ifm_media)) {
case IFM_10_T:
lesetutp(sc);
break;
case IFM_10_5:
lesetaui(sc);
break;
case IFM_AUTO:
break;
default:
return (EINVAL);
}
return (0);
}
void
lemediastatus(sc, ifmr)
struct lance_softc *sc;
struct ifmediareq *ifmr;
{
struct le_softc *lesc = (struct le_softc *)sc;
if (lesc->sc_dma == NULL)
return;
/*
* Notify the world which media we're currently using.
*/
if (lesc->sc_dma->sc_regs->csr & DE_AUI_TP)
ifmr->ifm_active = IFM_ETHER|IFM_10_T;
else
ifmr->ifm_active = IFM_ETHER|IFM_10_5;
}
#endif /* SUN4M */
hide void
lehwreset(sc)
struct lance_softc *sc;
{
#if defined(SUN4M)
struct le_softc *lesc = (struct le_softc *)sc;
/*
* Reset DMA channel.
*/
if (CPU_ISSUN4M && lesc->sc_dma) {
DMA_RESET(lesc->sc_dma);
lesc->sc_dma->sc_regs->en_bar = lesc->sc_laddr & 0xff000000;
DMA_ENINTR(lesc->sc_dma);
#define D_DSBL_WRINVAL D_DSBL_SCSI_DRN /* XXX: fix dmareg.h */
/* Disable E-cache invalidates on chip writes */
lesc->sc_dma->sc_regs->csr |= D_DSBL_WRINVAL;
}
#endif
}
hide void
lehwinit(sc)
struct lance_softc *sc;
{
#if defined(SUN4M)
struct le_softc *lesc = (struct le_softc *)sc;
/*
* Make sure we're using the currently-enabled media type.
* XXX Actually, this is probably unnecessary, now.
*/
if (CPU_ISSUN4M && lesc->sc_dma) {
switch (IFM_SUBTYPE(sc->sc_media.ifm_cur->ifm_media)) {
case IFM_10_T:
lesetutp(sc);
break;
case IFM_10_5:
lesetaui(sc);
break;
}
}
#endif
}
hide void
lenocarrier(sc)
struct lance_softc *sc;
{
#if defined(SUN4M)
struct le_softc *lesc = (struct le_softc *)sc;
if (CPU_ISSUN4M && lesc->sc_dma) {
/*
* Check if the user has requested a certain cable type, and
* if so, honor that request.
*/
printf("%s: lost carrier on ", sc->sc_dev.dv_xname);
if (lesc->sc_dma->sc_regs->csr & DE_AUI_TP) {
printf("UTP port");
switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
case IFM_10_5:
case IFM_AUTO:
printf(", switching to AUI port");
lesetaui(sc);
}
} else {
printf("AUI port");
switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
case IFM_10_T:
case IFM_AUTO:
printf(", switching to UTP port");
lesetutp(sc);
}
}
printf("\n");
} else
#endif
printf("%s: lost carrier\n", sc->sc_dev.dv_xname);
}
int
lematch_byname(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);
}
int
lematch_obio(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
union obio_attach_args *uoba = aux;
struct obio4_attach_args *oba;
if (uoba->uoba_isobio4 == 0)
return (0);
oba = &uoba->uoba_oba4;
return (bus_space_probe(oba->oba_bustag, 0, oba->oba_paddr,
2, /* probe size */
0, /* offset */
0, /* flags */
NULL, NULL));
}
#define SAME_LANCE(bp, sa) \
((bp->val[0] == sa->sa_slot && bp->val[1] == sa->sa_offset) || \
(bp->val[0] == -1 && bp->val[1] == sc->sc_dev.dv_unit))
void
leattach_sbus(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 sbusdev *sd;
bus_space_handle_t bh;
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,
sizeof(struct lereg1),
BUS_SPACE_MAP_LINEAR,
0, &bh) != 0) {
printf("%s @ sbus: cannot map registers\n", self->dv_xname);
return;
}
lesc->sc_r1 = (struct lereg1 *)bh;
/*
* Look for an "unallocated" lebuffer and pair it with
* this `le' device on the assumption that we're on
* a pre-historic ROM that doesn't establish le<=>lebuffer
* parent-child relationships.
*/
for (sd = ((struct sbus_softc *)parent)->sc_sbdev; sd != NULL;
sd = sd->sd_bchain) {
struct lebuf_softc *lebuf = (struct lebuf_softc *)sd->sd_dev;
if (strncmp("lebuffer", sd->sd_dev->dv_xname, 8) != 0)
continue;
if (lebuf->attached != 0)
continue;
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 = getpropint(sa->sa_node,
"busmaster-regval",
LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON);
break;
}
lesc->sc_sd.sd_reset = (void *)lance_reset;
sbus_establish(&lesc->sc_sd, &sc->sc_dev);
if (sa->sa_bp != NULL && strcmp(sa->sa_bp->name, le_cd.cd_name) == 0 &&
SAME_LANCE(sa->sa_bp, sa))
sa->sa_bp->dev = &sc->sc_dev;
leattach(lesc, sa->sa_pri);
}
void
leattach_ledma(parent, self, aux)
struct device *parent, *self;
void *aux;
{
#if defined(SUN4M)
struct sbus_attach_args *sa = aux;
struct le_softc *lesc = (struct le_softc *)self;
struct lance_softc *sc = &lesc->sc_am7990.lsc;
bus_space_handle_t bh;
bus_dma_segment_t seg;
int rseg, error;
/* Establish link to `ledma' device */
lesc->sc_dma = (struct dma_softc *)parent;
lesc->sc_dma->sc_le = lesc;
lesc->sc_bustag = sa->sa_bustag;
lesc->sc_dmatag = sa->sa_dmatag;
/* Map device registers */
if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset,
sizeof(struct lereg1),
BUS_SPACE_MAP_LINEAR,
0, &bh) != 0) {
printf("%s @ ledma: cannot map registers\n", self->dv_xname);
return;
}
lesc->sc_r1 = (struct lereg1 *)bh;
/* Allocate buffer memory */
sc->sc_memsize = MEMSIZE;
error = bus_dmamem_alloc(lesc->sc_dmatag, MEMSIZE, NBPG, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT);
if (error) {
printf("leattach_ledma: DMA buffer alloc error %d\n", error);
return;
}
error = bus_dmamem_map(lesc->sc_dmatag, &seg, rseg, MEMSIZE,
(caddr_t *)&sc->sc_mem,
BUS_DMA_NOWAIT|BUS_DMA_COHERENT|BUS_DMA_WRITE|BUS_DMA_CACHE);
if (error) {
printf("%s @ ledma: DMA buffer map error %d\n",
self->dv_xname, error);
return;
}
#if defined (SUN4M)
if ((seg.ds_addr & 0xffffff) >=
(seg.ds_addr & 0xffffff) + MEMSIZE)
panic("leattach_ledma: Lance buffer crosses 16MB boundary");
#endif
sc->sc_addr = seg.ds_addr & 0xffffff;
sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
lesc->sc_laddr = seg.ds_addr;
/* Assume SBus is grandparent */
lesc->sc_sd.sd_reset = (void *)lance_reset;
sbus_establish(&lesc->sc_sd, parent);
if (sa->sa_bp != NULL && strcmp(sa->sa_bp->name, le_cd.cd_name) == 0 &&
SAME_LANCE(sa->sa_bp, sa))
sa->sa_bp->dev = &sc->sc_dev;
sc->sc_mediachange = lemediachange;
sc->sc_mediastatus = lemediastatus;
sc->sc_supmedia = lemediasun4m;
sc->sc_nsupmedia = NLEMEDIASUN4M;
sc->sc_defaultmedia = IFM_ETHER|IFM_AUTO;
leattach(lesc, sa->sa_pri);
#endif
}
#if 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;
bus_space_handle_t bh;
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,
sizeof(struct lereg1),
BUS_SPACE_MAP_LINEAR,
0, &bh)) {
printf("%s @ lebuffer: cannot map registers\n", self->dv_xname);
return;
}
lesc->sc_r1 = (struct lereg1 *)bh;
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 = 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);
if (sa->sa_bp != NULL && strcmp(sa->sa_bp->name, le_cd.cd_name) == 0 &&
SAME_LANCE(sa->sa_bp, sa))
sa->sa_bp->dev = &sc->sc_dev;
leattach(lesc, sa->sa_pri);
}
#endif
void
leattach_obio(parent, self, aux)
struct device *parent, *self;
void *aux;
{
union obio_attach_args *uoba = aux;
struct obio4_attach_args *oba = &uoba->uoba_oba4;
struct le_softc *lesc = (struct le_softc *)self;
struct lance_softc *sc = &lesc->sc_am7990.lsc;
bus_space_handle_t bh;
lesc->sc_bustag = oba->oba_bustag;
lesc->sc_dmatag = oba->oba_dmatag;
if (obio_bus_map(oba->oba_bustag, oba->oba_paddr,
0, sizeof(struct lereg1),
0, 0,
&bh) != 0) {
printf("leattach_obio: cannot map registers\n");
return;
}
lesc->sc_r1 = (struct lereg1 *)bh;
if (oba->oba_bp != NULL &&
strcmp(oba->oba_bp->name, le_cd.cd_name) == 0 &&
sc->sc_dev.dv_unit == oba->oba_bp->val[1])
oba->oba_bp->dev = &sc->sc_dev;
/* Install interrupt */
leattach(lesc, oba->oba_pri);
}
void
leattach(lesc, pri)
struct le_softc *lesc;
int pri;
{
struct lance_softc *sc = &lesc->sc_am7990.lsc;
/* XXX the following declarations should be elsewhere */
extern void myetheraddr __P((u_char *));
if (sc->sc_mem == 0) {
bus_dma_segment_t seg;
int rseg, error;
error = bus_dmamem_alloc(lesc->sc_dmatag, MEMSIZE, NBPG, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT);
if (error) {
printf("if_le: DMA buffer alloc error %d\n", error);
return;
}
error = bus_dmamem_map(lesc->sc_dmatag, &seg, rseg, MEMSIZE,
(caddr_t *)&sc->sc_mem,
BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
if (error) {
printf("if_le: DMA buffer map error %d\n", error);
return;
}
sc->sc_addr = seg.ds_addr & 0xffffff;
#if defined (SUN4M)
if ((sc->sc_addr & 0xffffff) >=
(sc->sc_addr & 0xffffff) + MEMSIZE)
panic("if_le: Lance buffer crosses 16MB boundary");
#endif
sc->sc_memsize = MEMSIZE;
sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
}
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;
sc->sc_hwinit = lehwinit;
sc->sc_nocarrier = lenocarrier;
sc->sc_hwreset = lehwreset;
am7990_config(&lesc->sc_am7990);
(void)bus_intr_establish(lesc->sc_bustag, pri, 0, am7990_intr, sc);
/* now initialize DMA */
lehwreset(sc);
}
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