/* $OpenBSD: if_le.c,v 1.29 2007/05/29 09:54:09 sobrado Exp $ */
/* $NetBSD: if_le.c,v 1.50 1997/09/09 20:54:48 pk Exp $ */
/*-
* Copyright (c) 1997 Jason R. Thorpe. All rights reserved.
* Copyright (c) 1996
* The President and Fellows of Harvard College. All rights reserved.
* Copyright (c) 1995 Charles M. Hannum. 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 for the NetBSD Project
* by Jason R. Thorpe.
* 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_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <sparc/dev/sbusvar.h>
#include <sparc/dev/dmareg.h>
#include <sparc/dev/dmavar.h>
#include <sparc/dev/lebuffervar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include <sparc/dev/if_lereg.h>
#include <sparc/dev/if_levar.h>
#ifdef solbourne
#include <sparc/sparc/asm.h>
#include <machine/idt.h>
#include <machine/kap.h>
#endif
int lematch(struct device *, void *, void *);
void leattach(struct device *, struct device *, void *);
/*
* ifmedia interfaces
*/
int lemediachange(struct ifnet *);
void lemediastatus(struct ifnet *, struct ifmediareq *);
#if defined(SUN4M)
/*
* media change methods (only for sun4m)
*/
void lesetutp(struct am7990_softc *);
void lesetaui(struct am7990_softc *);
#endif /* SUN4M */
#if defined(SUN4M) /* XXX */
int myleintr(void *);
int ledmaintr(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? */
int i = 10;
while (i-- > 0 && (lesc->sc_dma->sc_regs->csr & D_DRAINING))
delay(1);
}
return (am7990_intr(arg));
}
#endif
struct cfattach le_ca = {
sizeof(struct le_softc), lematch, leattach
};
hide void lewrcsr(struct am7990_softc *, u_int16_t, u_int16_t);
hide u_int16_t lerdcsr(struct am7990_softc *, u_int16_t);
hide void lehwreset(struct am7990_softc *);
hide void lehwinit(struct am7990_softc *);
#if defined(SUN4M)
hide void lenocarrier(struct am7990_softc *);
#endif
#if defined(solbourne)
hide void kap_copytobuf(struct am7990_softc *, void *, int, int);
hide void kap_copyfrombuf(struct am7990_softc *, void *, int, int);
#endif
hide void
lewrcsr(sc, port, val)
struct am7990_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 am7990_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 am7990_softc *sc;
{
struct le_softc *lesc = (struct le_softc *)sc;
u_int32_t csr;
int tries = 5;
while (--tries) {
csr = lesc->sc_dma->sc_regs->csr;
csr |= E_TP_AUI;
lesc->sc_dma->sc_regs->csr = csr;
delay(20000); /* must not touch le for 20ms */
if (lesc->sc_dma->sc_regs->csr & E_TP_AUI)
return;
}
}
void
lesetaui(sc)
struct am7990_softc *sc;
{
struct le_softc *lesc = (struct le_softc *)sc;
u_int32_t csr;
int tries = 5;
while (--tries) {
csr = lesc->sc_dma->sc_regs->csr;
csr &= ~E_TP_AUI;
lesc->sc_dma->sc_regs->csr = csr;
delay(20000); /* must not touch le for 20ms */
if ((lesc->sc_dma->sc_regs->csr & E_TP_AUI) == 0)
return;
}
}
#endif
int
lemediachange(ifp)
struct ifnet *ifp;
{
struct am7990_softc *sc = ifp->if_softc;
struct ifmedia *ifm = &sc->sc_ifmedia;
#if defined(SUN4M)
struct le_softc *lesc = (struct le_softc *)sc;
#endif
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)) {
#if defined(SUN4M)
case IFM_10_T:
if (CPU_ISSUN4M && lesc->sc_dma)
lesetutp(sc);
else
return (EOPNOTSUPP);
break;
case IFM_AUTO:
if (CPU_ISSUN4M && lesc->sc_dma)
return (0);
else
return (EOPNOTSUPP);
break;
#endif
case IFM_10_5:
#if defined(SUN4M)
if (CPU_ISSUN4M && lesc->sc_dma)
lesetaui(sc);
#else
return (0);
#endif
break;
default:
return (EINVAL);
}
return (0);
}
void
lemediastatus(ifp, ifmr)
struct ifnet *ifp;
struct ifmediareq *ifmr;
{
#if defined(SUN4M)
struct am7990_softc *sc = ifp->if_softc;
struct le_softc *lesc = (struct le_softc *)sc;
if (lesc->sc_dma == NULL) {
if (lesc->sc_lebufchild)
ifmr->ifm_active = IFM_ETHER | IFM_10_T;
else
ifmr->ifm_active = IFM_ETHER | IFM_10_5;
return;
}
if (CPU_ISSUN4M) {
/*
* Notify the world which media we're currently using.
*/
if (lesc->sc_dma->sc_regs->csr & E_TP_AUI)
ifmr->ifm_active = IFM_ETHER | IFM_10_T;
else
ifmr->ifm_active = IFM_ETHER | IFM_10_5;
}
else
ifmr->ifm_active = IFM_ETHER | IFM_10_5;
#else
ifmr->ifm_active = IFM_ETHER | IFM_10_5;
#endif
}
hide void
lehwreset(sc)
struct am7990_softc *sc;
{
#if defined(SUN4M)
struct le_softc *lesc = (struct le_softc *)sc;
/*
* Reset DMA channel.
*/
if (CPU_ISSUN4M && lesc->sc_dma) {
u_int32_t aui;
aui = lesc->sc_dma->sc_regs->csr & E_TP_AUI;
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 | aui;
delay(20000); /* must not touch le for 20ms */
}
#endif
}
hide void
lehwinit(sc)
struct am7990_softc *sc;
{
#if defined(SUN4M)
struct le_softc *lesc = (struct le_softc *)sc;
if (CPU_ISSUN4M && lesc->sc_dma) {
switch (IFM_SUBTYPE(sc->sc_ifmedia.ifm_cur->ifm_media)) {
case IFM_10_T:
lesetutp(sc);
break;
case IFM_10_5:
lesetaui(sc);
break;
case IFM_AUTO:
lesetutp(sc);
break;
default: /* XXX shouldn't happen */
lesetutp(sc);
break;
}
}
#endif
}
#if defined(SUN4M)
hide void
lenocarrier(sc)
struct am7990_softc *sc;
{
struct le_softc *lesc = (struct le_softc *)sc;
if (lesc->sc_dma) {
/*
* Check if the user has requested a certain cable type, and
* if so, honor that request.
*/
if (lesc->sc_dma->sc_regs->csr & E_TP_AUI) {
switch (IFM_SUBTYPE(sc->sc_ifmedia.ifm_media)) {
case IFM_10_5:
case IFM_AUTO:
printf("%s: lost carrier on UTP port"
", switching to AUI port\n",
sc->sc_dev.dv_xname);
lesetaui(sc);
}
} else {
switch (IFM_SUBTYPE(sc->sc_ifmedia.ifm_media)) {
case IFM_10_T:
case IFM_AUTO:
printf("%s: lost carrier on AUI port"
", switching to UTP port\n",
sc->sc_dev.dv_xname);
lesetutp(sc);
}
}
}
}
#endif
int
lematch(parent, vcf, aux)
struct device *parent;
void *vcf, *aux;
{
struct cfdata *cf = vcf;
struct confargs *ca = aux;
register struct romaux *ra = &ca->ca_ra;
if (strcmp(cf->cf_driver->cd_name, ra->ra_name))
return (0);
#if defined(solbourne)
if (CPU_ISKAP) {
return (ca->ca_bustype == BUS_OBIO);
}
#endif
#if defined(SUN4C) || defined(SUN4M)
if (ca->ca_bustype == BUS_SBUS) {
if (!sbus_testdma((struct sbus_softc *)parent, ca))
return (0);
return (1);
}
#endif
return (probeget(ra->ra_vaddr, 2) != -1);
}
void
leattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct le_softc *lesc = (struct le_softc *)self;
struct am7990_softc *sc = &lesc->sc_am7990;
struct confargs *ca = aux;
int pri;
struct bootpath *bp;
#if defined(SUN4C) || defined(SUN4M)
int sbuschild = strncmp(parent->dv_xname, "sbus", 4) == 0;
int lebufchild = strncmp(parent->dv_xname, "lebuffer", 8) == 0;
int dmachild = strncmp(parent->dv_xname, "ledma", 5) == 0;
struct lebuf_softc *lebuf;
#endif
/* XXX the following declarations should be elsewhere */
extern void myetheraddr(u_char *);
if (ca->ca_ra.ra_nintr != 1) {
printf(": expected 1 interrupt, got %d\n", ca->ca_ra.ra_nintr);
return;
}
pri = ca->ca_ra.ra_intr[0].int_pri;
printf(" pri %d", pri);
sc->sc_hasifmedia = 1;
#if defined(SUN4C) || defined(SUN4M)
lesc->sc_lebufchild = lebufchild;
#endif
lesc->sc_r1 = (struct lereg1 *)
mapiodev(ca->ca_ra.ra_reg, 0, sizeof(struct lereg1));
#if defined(SUN4C) || defined(SUN4M)
lebuf = NULL;
if (lebufchild) {
lebuf = (struct lebuf_softc *)parent;
} else if (sbuschild) {
extern struct cfdriver lebuffer_cd;
struct lebuf_softc *lebufsc;
int i;
for (i = 0; i < lebuffer_cd.cd_ndevs; i++) {
lebufsc = (struct lebuf_softc *)lebuffer_cd.cd_devs[i];
if (lebufsc == NULL || lebufsc->attached != 0)
continue;
lebuf = lebufsc;
break;
}
}
if (lebuf != NULL) {
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(ca->ca_ra.ra_node,
"busmaster-regval",
LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON);
} else
#endif
{
u_long laddr;
#if defined(solbourne)
if (CPU_ISKAP && ca->ca_bustype == BUS_OBIO) {
/*
* Use the fixed buffer allocated in pmap_bootstrap().
* for now, until I get the iCU translation to work...
*/
extern vaddr_t lance_va;
laddr = PTW1_TO_PHYS(lance_va);
sc->sc_mem = (void *)PHYS_TO_PTW2(laddr);
/* disable ICU translations for ethernet */
sta(ICU_TER, ASI_PHYS_IO,
lda(ICU_TER, ASI_PHYS_IO) & ~TER_ETHERNET);
/* stash the high 15 bits of the physical address */
sta(SE_BASE + 0x18, ASI_PHYS_IO,
laddr & 0xfffe0000);
} /* else */
#endif /* solbourne */
#if defined(SUN4) || defined(SUN4C) || defined(SUN4M)
#if defined(SUN4C) || defined(SUN4M)
if (sbuschild && CPU_ISSUN4M)
laddr = (u_long)dvma_malloc_space(MEMSIZE,
&sc->sc_mem, M_NOWAIT, M_SPACE_D24);
else
#endif
laddr = (u_long)dvma_malloc(MEMSIZE,
&sc->sc_mem, M_NOWAIT);
#endif /* SUN4 || SUN4C || SUN4M */
#if defined (SUN4M)
if ((laddr & 0xffffff) >= (laddr & 0xffffff) + MEMSIZE)
panic("if_le: Lance buffer crosses 16MB boundary");
#endif
#if defined(solbourne)
if (CPU_ISKAP && ca->ca_bustype == BUS_OBIO)
sc->sc_addr = laddr & 0x01ffff;
else
#endif
sc->sc_addr = laddr & 0xffffff;
sc->sc_memsize = MEMSIZE;
#if defined(solbourne)
if (CPU_ISKAP && ca->ca_bustype == BUS_OBIO)
sc->sc_conf3 = LE_C3_BSWP;
else
#endif
sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
#if defined(SUN4C) || defined(SUN4M)
if (dmachild) {
lesc->sc_dma = (struct dma_softc *)parent;
lesc->sc_dma->sc_le = lesc;
lesc->sc_laddr = laddr;
}
#endif
}
bp = ca->ca_ra.ra_bp;
switch (ca->ca_bustype) {
#if defined(SUN4C) || defined(SUN4M)
#define SAME_LANCE(bp, ca) \
((bp->val[0] == ca->ca_slot && bp->val[1] == ca->ca_offset) || \
(bp->val[0] == -1 && bp->val[1] == sc->sc_dev.dv_unit))
case BUS_SBUS:
if (bp != NULL && strcmp(bp->name, le_cd.cd_name) == 0 &&
SAME_LANCE(bp, ca))
bp->dev = &sc->sc_dev;
break;
#endif /* SUN4C || SUN4M */
default:
if (bp != NULL && strcmp(bp->name, le_cd.cd_name) == 0 &&
sc->sc_dev.dv_unit == bp->val[1])
bp->dev = &sc->sc_dev;
break;
}
myetheraddr(sc->sc_arpcom.ac_enaddr);
sc->sc_copytodesc = am7990_copytobuf_contig;
sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
sc->sc_copytobuf = am7990_copytobuf_contig;
sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
sc->sc_zerobuf = am7990_zerobuf_contig;
sc->sc_rdcsr = lerdcsr;
sc->sc_wrcsr = lewrcsr;
sc->sc_hwinit = lehwinit;
#if defined(SUN4M)
if (CPU_ISSUN4M)
sc->sc_nocarrier = lenocarrier;
#endif
sc->sc_hwreset = lehwreset;
ifmedia_init(&sc->sc_ifmedia, 0, lemediachange, lemediastatus);
#if defined(SUN4C) || defined(SUN4M)
if (lebufchild) {
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
ifmedia_set(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T);
} else
#endif
#if defined(SUN4M)
if (CPU_ISSUN4M && lesc->sc_dma) {
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_5, 0, NULL);
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
ifmedia_set(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO);
} else
#endif
{
ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_5, 0, NULL);
ifmedia_set(&sc->sc_ifmedia, IFM_ETHER | IFM_10_5);
}
am7990_config(sc);
#if defined(solbourne)
if (CPU_ISKAP && ca->ca_bustype == BUS_OBIO) {
sc->sc_copytodesc = kap_copytobuf;
sc->sc_copyfromdesc = kap_copyfrombuf;
sc->sc_initaddr = 1 << 23 | (sc->sc_initaddr & 0x01ffff);
sc->sc_rmdaddr = 1 << 23 | (sc->sc_rmdaddr & 0x01ffff);
sc->sc_tmdaddr = 1 << 23 | (sc->sc_tmdaddr & 0x01ffff);
}
#endif
lesc->sc_ih.ih_fun = am7990_intr;
#if defined(SUN4M) /*XXX*/
if (CPU_ISSUN4M && lesc->sc_dma)
lesc->sc_ih.ih_fun = myleintr;
#endif
lesc->sc_ih.ih_arg = sc;
intr_establish(pri, &lesc->sc_ih, IPL_NET, self->dv_xname);
/* now initialize DMA */
lehwreset(sc);
}
#if defined(solbourne)
hide void
kap_copytobuf(struct am7990_softc *sc, void *to, int boff, int len)
{
return (am7990_copytobuf_contig(sc, to, boff & ~(1 << 23), len));
}
hide void
kap_copyfrombuf(struct am7990_softc *sc, void *from, int boff, int len)
{
return (am7990_copyfrombuf_contig(sc, from, boff & ~(1 << 23), len));
}
#endif
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