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NetBSD/sys/dev/ic/tulip.c

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/* $NetBSD: tulip.c,v 1.61 2000/04/07 18:58:15 thorpej Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000 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.
* 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.
*/
/*
* Device driver for the Digital Semiconductor ``Tulip'' (21x4x)
* Ethernet controller family, and a variety of clone chips.
*/
#include "opt_inet.h"
#include "opt_ns.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <machine/endian.h>
#include <vm/vm.h> /* for PAGE_SIZE */
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mii/mii_bitbang.h>
#include <dev/ic/tulipreg.h>
#include <dev/ic/tulipvar.h>
const char *tlp_chip_names[] = TULIP_CHIP_NAMES;
const struct tulip_txthresh_tab tlp_10_txthresh_tab[] =
TLP_TXTHRESH_TAB_10;
const struct tulip_txthresh_tab tlp_10_100_txthresh_tab[] =
TLP_TXTHRESH_TAB_10_100;
const struct tulip_txthresh_tab tlp_winb_txthresh_tab[] =
TLP_TXTHRESH_TAB_WINB;
void tlp_start __P((struct ifnet *));
void tlp_watchdog __P((struct ifnet *));
int tlp_ioctl __P((struct ifnet *, u_long, caddr_t));
void tlp_shutdown __P((void *));
void tlp_reset __P((struct tulip_softc *));
int tlp_init __P((struct tulip_softc *));
void tlp_rxdrain __P((struct tulip_softc *));
void tlp_stop __P((struct tulip_softc *, int));
int tlp_add_rxbuf __P((struct tulip_softc *, int));
void tlp_idle __P((struct tulip_softc *, u_int32_t));
void tlp_srom_idle __P((struct tulip_softc *));
int tlp_srom_size __P((struct tulip_softc *));
int tlp_enable __P((struct tulip_softc *));
void tlp_disable __P((struct tulip_softc *));
void tlp_power __P((int, void *));
void tlp_filter_setup __P((struct tulip_softc *));
void tlp_winb_filter_setup __P((struct tulip_softc *));
void tlp_al981_filter_setup __P((struct tulip_softc *));
void tlp_rxintr __P((struct tulip_softc *));
void tlp_txintr __P((struct tulip_softc *));
void tlp_mii_tick __P((void *));
void tlp_mii_statchg __P((struct device *));
void tlp_winb_mii_statchg __P((struct device *));
void tlp_mii_getmedia __P((struct tulip_softc *, struct ifmediareq *));
int tlp_mii_setmedia __P((struct tulip_softc *));
int tlp_bitbang_mii_readreg __P((struct device *, int, int));
void tlp_bitbang_mii_writereg __P((struct device *, int, int, int));
int tlp_pnic_mii_readreg __P((struct device *, int, int));
void tlp_pnic_mii_writereg __P((struct device *, int, int, int));
int tlp_al981_mii_readreg __P((struct device *, int, int));
void tlp_al981_mii_writereg __P((struct device *, int, int, int));
void tlp_2114x_preinit __P((struct tulip_softc *));
void tlp_2114x_mii_preinit __P((struct tulip_softc *));
void tlp_pnic_preinit __P((struct tulip_softc *));
void tlp_21140_reset __P((struct tulip_softc *));
void tlp_21142_reset __P((struct tulip_softc *));
void tlp_pmac_reset __P((struct tulip_softc *));
u_int32_t tlp_crc32 __P((const u_int8_t *, size_t));
#define tlp_mchash(addr, sz) (tlp_crc32((addr), ETHER_ADDR_LEN) & ((sz) - 1))
/*
* MII bit-bang glue.
*/
u_int32_t tlp_sio_mii_bitbang_read __P((struct device *));
void tlp_sio_mii_bitbang_write __P((struct device *, u_int32_t));
const struct mii_bitbang_ops tlp_sio_mii_bitbang_ops = {
tlp_sio_mii_bitbang_read,
tlp_sio_mii_bitbang_write,
{
MIIROM_MDO, /* MII_BIT_MDO */
MIIROM_MDI, /* MII_BIT_MDI */
MIIROM_MDC, /* MII_BIT_MDC */
0, /* MII_BIT_DIR_HOST_PHY */
MIIROM_MIIDIR, /* MII_BIT_DIR_PHY_HOST */
}
};
#ifdef TLP_DEBUG
#define DPRINTF(sc, x) if ((sc)->sc_ethercom.ec_if.if_flags & IFF_DEBUG) \
printf x
#else
#define DPRINTF(sc, x) /* nothing */
#endif
#ifdef TLP_STATS
void tlp_print_stats __P((struct tulip_softc *));
#endif
/*
* Can be used to debug the SROM-related things, including contents.
* Initialized so that it's patchable.
*/
int tlp_srom_debug = 0;
/*
* tlp_attach:
*
* Attach a Tulip interface to the system.
*/
void
tlp_attach(sc, enaddr)
struct tulip_softc *sc;
const u_int8_t *enaddr;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
int i, error;
callout_init(&sc->sc_nway_callout);
callout_init(&sc->sc_tick_callout);
/*
* NOTE: WE EXPECT THE FRONT-END TO INITIALIZE sc_regshift!
*/
/*
* Setup the transmit threshold table.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_DE425:
case TULIP_CHIP_21040:
case TULIP_CHIP_21041:
sc->sc_txth = tlp_10_txthresh_tab;
break;
default:
sc->sc_txth = tlp_10_100_txthresh_tab;
break;
}
/*
* Setup the filter setup function.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_WB89C840F:
sc->sc_filter_setup = tlp_winb_filter_setup;
break;
case TULIP_CHIP_AL981:
sc->sc_filter_setup = tlp_al981_filter_setup;
break;
default:
sc->sc_filter_setup = tlp_filter_setup;
break;
}
/*
* Set up the media status change function.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_WB89C840F:
sc->sc_statchg = tlp_winb_mii_statchg;
break;
default:
/*
* We may override this if we have special media
* handling requirements (e.g. flipping GPIO pins).
*
* The pure-MII statchg function covers the basics.
*/
sc->sc_statchg = tlp_mii_statchg;
break;
}
/*
* Set up various chip-specific quirks.
*
* Note that wherever we can, we use the "ring" option for
* transmit and receive descriptors. This is because some
* clone chips apparently have problems when using chaining,
* although some *only* support chaining.
*
* What we do is always program the "next" pointer, and then
* conditionally set the TDCTL_CH and TDCTL_ER bits in the
* appropriate places.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_21140:
case TULIP_CHIP_21140A:
case TULIP_CHIP_21142:
case TULIP_CHIP_21143:
case TULIP_CHIP_82C115: /* 21143-like */
case TULIP_CHIP_MX98713: /* 21140-like */
case TULIP_CHIP_MX98713A: /* 21143-like */
case TULIP_CHIP_MX98715: /* 21143-like */
case TULIP_CHIP_MX98715A: /* 21143-like */
case TULIP_CHIP_MX98725: /* 21143-like */
/*
* Run these chips in ring mode.
*/
sc->sc_tdctl_ch = 0;
sc->sc_tdctl_er = TDCTL_ER;
sc->sc_preinit = tlp_2114x_preinit;
break;
case TULIP_CHIP_82C168:
case TULIP_CHIP_82C169:
/*
* Run these chips in ring mode.
*/
sc->sc_tdctl_ch = 0;
sc->sc_tdctl_er = TDCTL_ER;
sc->sc_preinit = tlp_pnic_preinit;
/*
* These chips seem to have busted DMA engines; just put them
* in Store-and-Forward mode from the get-go.
*/
sc->sc_txthresh = TXTH_SF;
break;
case TULIP_CHIP_WB89C840F:
/*
* Run this chip in chained mode.
*/
sc->sc_tdctl_ch = TDCTL_CH;
sc->sc_tdctl_er = 0;
sc->sc_flags |= TULIPF_IC_FS;
break;
default:
/*
* Default to running in ring mode.
*/
sc->sc_tdctl_ch = 0;
sc->sc_tdctl_er = TDCTL_ER;
}
/*
* Set up the MII bit-bang operations.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_WB89C840F: /* XXX direction bit different? */
sc->sc_bitbang_ops = &tlp_sio_mii_bitbang_ops;
break;
default:
sc->sc_bitbang_ops = &tlp_sio_mii_bitbang_ops;
}
SIMPLEQ_INIT(&sc->sc_txfreeq);
SIMPLEQ_INIT(&sc->sc_txdirtyq);
/*
* Allocate the control data structures, and create and load the
* DMA map for it.
*/
if ((error = bus_dmamem_alloc(sc->sc_dmat,
sizeof(struct tulip_control_data), PAGE_SIZE, 0, &sc->sc_cdseg,
1, &sc->sc_cdnseg, 0)) != 0) {
printf("%s: unable to allocate control data, error = %d\n",
sc->sc_dev.dv_xname, error);
goto fail_0;
}
if ((error = bus_dmamem_map(sc->sc_dmat, &sc->sc_cdseg, sc->sc_cdnseg,
sizeof(struct tulip_control_data), (caddr_t *)&sc->sc_control_data,
BUS_DMA_COHERENT)) != 0) {
printf("%s: unable to map control data, error = %d\n",
sc->sc_dev.dv_xname, error);
goto fail_1;
}
if ((error = bus_dmamap_create(sc->sc_dmat,
sizeof(struct tulip_control_data), 1,
sizeof(struct tulip_control_data), 0, 0, &sc->sc_cddmamap)) != 0) {
printf("%s: unable to create control data DMA map, "
"error = %d\n", sc->sc_dev.dv_xname, error);
goto fail_2;
}
if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_cddmamap,
sc->sc_control_data, sizeof(struct tulip_control_data), NULL,
0)) != 0) {
printf("%s: unable to load control data DMA map, error = %d\n",
sc->sc_dev.dv_xname, error);
goto fail_3;
}
/*
* Create the transmit buffer DMA maps.
*
* Note that on the Xircom clone, transmit buffers must be
* 4-byte aligned. We're almost guaranteed to have to copy
* the packet in that case, so we just limit ourselves to
* one segment.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_X3201_3:
sc->sc_ntxsegs = 1;
break;
default:
sc->sc_ntxsegs = TULIP_NTXSEGS;
}
for (i = 0; i < TULIP_TXQUEUELEN; i++) {
if ((error = bus_dmamap_create(sc->sc_dmat, MCLBYTES,
sc->sc_ntxsegs, MCLBYTES, 0, 0,
&sc->sc_txsoft[i].txs_dmamap)) != 0) {
printf("%s: unable to create tx DMA map %d, "
"error = %d\n", sc->sc_dev.dv_xname, i, error);
goto fail_4;
}
}
/*
* Create the recieve buffer DMA maps.
*/
for (i = 0; i < TULIP_NRXDESC; i++) {
if ((error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1,
MCLBYTES, 0, 0, &sc->sc_rxsoft[i].rxs_dmamap)) != 0) {
printf("%s: unable to create rx DMA map %d, "
"error = %d\n", sc->sc_dev.dv_xname, i, error);
goto fail_5;
}
sc->sc_rxsoft[i].rxs_mbuf = NULL;
}
/*
* From this point forward, the attachment cannot fail. A failure
* before this point releases all resources that may have been
* allocated.
*/
sc->sc_flags |= TULIPF_ATTACHED;
/*
* Reset the chip to a known state.
*/
tlp_reset(sc);
/* Announce ourselves. */
printf("%s: %s%sEthernet address %s\n", sc->sc_dev.dv_xname,
sc->sc_name[0] != '\0' ? sc->sc_name : "",
sc->sc_name[0] != '\0' ? ", " : "",
ether_sprintf(enaddr));
/*
* Initialize our media structures. This may probe the MII, if
* present.
*/
(*sc->sc_mediasw->tmsw_init)(sc);
strcpy(ifp->if_xname, sc->sc_dev.dv_xname);
ifp->if_softc = sc;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = tlp_ioctl;
ifp->if_start = tlp_start;
ifp->if_watchdog = tlp_watchdog;
/*
* Attach the interface.
*/
if_attach(ifp);
ether_ifattach(ifp, enaddr);
#if NBPFILTER > 0
bpfattach(&sc->sc_ethercom.ec_if.if_bpf, ifp, DLT_EN10MB,
sizeof(struct ether_header));
#endif
/*
* Make sure the interface is shutdown during reboot.
*/
sc->sc_sdhook = shutdownhook_establish(tlp_shutdown, sc);
if (sc->sc_sdhook == NULL)
printf("%s: WARNING: unable to establish shutdown hook\n",
sc->sc_dev.dv_xname);
/*
* Add a suspend hook to make sure we come back up after a
* resume.
*/
sc->sc_powerhook = powerhook_establish(tlp_power, sc);
if (sc->sc_powerhook == NULL)
printf("%s: WARNING: unable to establish power hook\n",
sc->sc_dev.dv_xname);
return;
/*
* Free any resources we've allocated during the failed attach
* attempt. Do this in reverse order and fall through.
*/
fail_5:
for (i = 0; i < TULIP_NRXDESC; i++) {
if (sc->sc_rxsoft[i].rxs_dmamap != NULL)
bus_dmamap_destroy(sc->sc_dmat,
sc->sc_rxsoft[i].rxs_dmamap);
}
fail_4:
for (i = 0; i < TULIP_TXQUEUELEN; i++) {
if (sc->sc_txsoft[i].txs_dmamap != NULL)
bus_dmamap_destroy(sc->sc_dmat,
sc->sc_txsoft[i].txs_dmamap);
}
bus_dmamap_unload(sc->sc_dmat, sc->sc_cddmamap);
fail_3:
bus_dmamap_destroy(sc->sc_dmat, sc->sc_cddmamap);
fail_2:
bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->sc_control_data,
sizeof(struct tulip_control_data));
fail_1:
bus_dmamem_free(sc->sc_dmat, &sc->sc_cdseg, sc->sc_cdnseg);
fail_0:
return;
}
/*
* tlp_activate:
*
* Handle device activation/deactivation requests.
*/
int
tlp_activate(self, act)
struct device *self;
enum devact act;
{
struct tulip_softc *sc = (void *) self;
int s, error = 0;
s = splnet();
switch (act) {
case DVACT_ACTIVATE:
error = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
if (sc->sc_flags & TULIPF_HAS_MII)
mii_activate(&sc->sc_mii, act, MII_PHY_ANY,
MII_OFFSET_ANY);
if_deactivate(&sc->sc_ethercom.ec_if);
break;
}
splx(s);
return (error);
}
/*
* tlp_detach:
*
* Detach a Tulip interface.
*/
int
tlp_detach(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct tulip_rxsoft *rxs;
struct tulip_txsoft *txs;
int i;
/*
* Suceed now if there isn't any work to do.
*/
if ((sc->sc_flags & TULIPF_ATTACHED) == 0)
return (0);
/* Unhook our tick handler. */
if (sc->sc_tick)
callout_stop(&sc->sc_tick_callout);
if (sc->sc_flags & TULIPF_HAS_MII) {
/* Detach all PHYs */
mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
}
/* Delete all remaining media. */
ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY);
#if NBPFILTER > 0
bpfdetach(ifp);
#endif
ether_ifdetach(ifp);
if_detach(ifp);
for (i = 0; i < TULIP_NRXDESC; i++) {
rxs = &sc->sc_rxsoft[i];
if (rxs->rxs_mbuf != NULL) {
bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap);
m_freem(rxs->rxs_mbuf);
rxs->rxs_mbuf = NULL;
}
bus_dmamap_destroy(sc->sc_dmat, rxs->rxs_dmamap);
}
for (i = 0; i < TULIP_TXQUEUELEN; i++) {
txs = &sc->sc_txsoft[i];
if (txs->txs_mbuf != NULL) {
bus_dmamap_unload(sc->sc_dmat, txs->txs_dmamap);
m_freem(txs->txs_mbuf);
txs->txs_mbuf = NULL;
}
bus_dmamap_destroy(sc->sc_dmat, txs->txs_dmamap);
}
bus_dmamap_unload(sc->sc_dmat, sc->sc_cddmamap);
bus_dmamap_destroy(sc->sc_dmat, sc->sc_cddmamap);
bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->sc_control_data,
sizeof(struct tulip_control_data));
bus_dmamem_free(sc->sc_dmat, &sc->sc_cdseg, sc->sc_cdnseg);
shutdownhook_disestablish(sc->sc_sdhook);
powerhook_disestablish(sc->sc_powerhook);
if (sc->sc_srom)
free(sc->sc_srom, M_DEVBUF);
return (0);
}
/*
* tlp_shutdown:
*
* Make sure the interface is stopped at reboot time.
*/
void
tlp_shutdown(arg)
void *arg;
{
struct tulip_softc *sc = arg;
tlp_stop(sc, 1);
}
/*
* tlp_start: [ifnet interface function]
*
* Start packet transmission on the interface.
*/
void
tlp_start(ifp)
struct ifnet *ifp;
{
struct tulip_softc *sc = ifp->if_softc;
struct mbuf *m0, *m;
struct tulip_txsoft *txs, *last_txs;
bus_dmamap_t dmamap;
int error, firsttx, nexttx, lasttx, ofree, seg;
DPRINTF(sc, ("%s: tlp_start: sc_flags 0x%08x, if_flags 0x%08x\n",
sc->sc_dev.dv_xname, sc->sc_flags, ifp->if_flags));
/*
* If we want a filter setup, it means no more descriptors were
* available for the setup routine. Let it get a chance to wedge
* itself into the ring.
*/
if (sc->sc_flags & TULIPF_WANT_SETUP)
ifp->if_flags |= IFF_OACTIVE;
if ((ifp->if_flags & (IFF_RUNNING|IFF_OACTIVE)) != IFF_RUNNING)
return;
/*
* Remember the previous number of free descriptors and
* the first descriptor we'll use.
*/
ofree = sc->sc_txfree;
firsttx = sc->sc_txnext;
DPRINTF(sc, ("%s: tlp_start: txfree %d, txnext %d\n",
sc->sc_dev.dv_xname, ofree, firsttx));
/*
* Loop through the send queue, setting up transmit descriptors
* until we drain the queue, or use up all available transmit
* descriptors.
*/
while ((txs = SIMPLEQ_FIRST(&sc->sc_txfreeq)) != NULL &&
sc->sc_txfree != 0) {
/*
* Grab a packet off the queue.
*/
IF_DEQUEUE(&ifp->if_snd, m0);
if (m0 == NULL)
break;
dmamap = txs->txs_dmamap;
/*
* Load the DMA map. If this fails, the packet either
* didn't fit in the alloted number of segments, or we were
* short on resources. In this case, we'll copy and try
* again.
*
* Note that if we're only allowed 1 Tx segment, we
* have an alignment restriction. Do this test before
* attempting to load the DMA map, because it's more
* likely we'll trip the alignment test than the
* more-than-one-segment test.
*/
if ((sc->sc_ntxsegs == 1 && (mtod(m0, bus_addr_t) & 3) != 0) ||
bus_dmamap_load_mbuf(sc->sc_dmat, dmamap, m0,
BUS_DMA_NOWAIT) != 0) {
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL) {
printf("%s: unable to allocate Tx mbuf\n",
sc->sc_dev.dv_xname);
IF_PREPEND(&ifp->if_snd, m0);
break;
}
if (m0->m_pkthdr.len > MHLEN) {
MCLGET(m, M_DONTWAIT);
if ((m->m_flags & M_EXT) == 0) {
printf("%s: unable to allocate Tx "
"cluster\n", sc->sc_dev.dv_xname);
m_freem(m);
IF_PREPEND(&ifp->if_snd, m0);
break;
}
}
m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m, caddr_t));
m->m_pkthdr.len = m->m_len = m0->m_pkthdr.len;
m_freem(m0);
m0 = m;
error = bus_dmamap_load_mbuf(sc->sc_dmat, dmamap,
m0, BUS_DMA_NOWAIT);
if (error) {
printf("%s: unable to load Tx buffer, "
"error = %d\n", sc->sc_dev.dv_xname, error);
IF_PREPEND(&ifp->if_snd, m0);
break;
}
}
/*
* Ensure we have enough descriptors free to describe
* the packet.
*/
if (dmamap->dm_nsegs > sc->sc_txfree) {
/*
* Not enough free descriptors to transmit this
* packet. We haven't committed to anything yet,
* so just unload the DMA map, put the packet
* back on the queue, and punt. Notify the upper
* layer that there are no more slots left.
*
* XXX We could allocate an mbuf and copy, but
* XXX it is worth it?
*/
ifp->if_flags |= IFF_OACTIVE;
bus_dmamap_unload(sc->sc_dmat, dmamap);
IF_PREPEND(&ifp->if_snd, m0);
break;
}
/*
* WE ARE NOW COMMITTED TO TRANSMITTING THE PACKET.
*/
/* Sync the DMA map. */
bus_dmamap_sync(sc->sc_dmat, dmamap, 0, dmamap->dm_mapsize,
BUS_DMASYNC_PREWRITE);
/*
* Initialize the transmit descriptors.
*/
for (nexttx = sc->sc_txnext, seg = 0;
seg < dmamap->dm_nsegs;
seg++, nexttx = TULIP_NEXTTX(nexttx)) {
/*
* If this is the first descriptor we're
* enqueueing, don't set the OWN bit just
* yet. That could cause a race condition.
* We'll do it below.
*/
sc->sc_txdescs[nexttx].td_status =
(nexttx == firsttx) ? 0 : htole32(TDSTAT_OWN);
sc->sc_txdescs[nexttx].td_bufaddr1 =
htole32(dmamap->dm_segs[seg].ds_addr);
sc->sc_txdescs[nexttx].td_ctl =
htole32((dmamap->dm_segs[seg].ds_len <<
TDCTL_SIZE1_SHIFT) | sc->sc_tdctl_ch |
(nexttx == (TULIP_NTXDESC - 1) ?
sc->sc_tdctl_er : 0));
lasttx = nexttx;
}
/* Set `first segment' and `last segment' appropriately. */
sc->sc_txdescs[sc->sc_txnext].td_ctl |= htole32(TDCTL_Tx_FS);
sc->sc_txdescs[lasttx].td_ctl |= htole32(TDCTL_Tx_LS);
#ifdef TLP_DEBUG
if (ifp->if_flags & IFF_DEBUG) {
printf(" txsoft %p trainsmit chain:\n", txs);
for (seg = sc->sc_txnext;; seg = TULIP_NEXTTX(seg)) {
printf(" descriptor %d:\n", seg);
printf(" td_status: 0x%08x\n",
le32toh(sc->sc_txdescs[seg].td_status));
printf(" td_ctl: 0x%08x\n",
le32toh(sc->sc_txdescs[seg].td_ctl));
printf(" td_bufaddr1: 0x%08x\n",
le32toh(sc->sc_txdescs[seg].td_bufaddr1));
printf(" td_bufaddr2: 0x%08x\n",
le32toh(sc->sc_txdescs[seg].td_bufaddr2));
if (seg == lasttx)
break;
}
}
#endif
/* Sync the descriptors we're using. */
TULIP_CDTXSYNC(sc, sc->sc_txnext, dmamap->dm_nsegs,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
/*
* Store a pointer to the packet so we can free it later,
* and remember what txdirty will be once the packet is
* done.
*/
txs->txs_mbuf = m0;
txs->txs_firstdesc = sc->sc_txnext;
txs->txs_lastdesc = lasttx;
txs->txs_ndescs = dmamap->dm_nsegs;
/* Advance the tx pointer. */
sc->sc_txfree -= dmamap->dm_nsegs;
sc->sc_txnext = nexttx;
SIMPLEQ_REMOVE_HEAD(&sc->sc_txfreeq, txs, txs_q);
SIMPLEQ_INSERT_TAIL(&sc->sc_txdirtyq, txs, txs_q);
last_txs = txs;
#if NBPFILTER > 0
/*
* Pass the packet to any BPF listeners.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m0);
#endif /* NBPFILTER > 0 */
}
if (txs == NULL || sc->sc_txfree == 0) {
/* No more slots left; notify upper layer. */
ifp->if_flags |= IFF_OACTIVE;
}
if (sc->sc_txfree != ofree) {
DPRINTF(sc, ("%s: packets enqueued, IC on %d, OWN on %d\n",
sc->sc_dev.dv_xname, lasttx, firsttx));
/*
* Cause a transmit interrupt to happen on the
* last packet we enqueued.
*/
sc->sc_txdescs[lasttx].td_ctl |= htole32(TDCTL_Tx_IC);
TULIP_CDTXSYNC(sc, lasttx, 1,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
/*
* Some clone chips want IC on the *first* segment in
* the packet. Appease them.
*/
if ((sc->sc_flags & TULIPF_IC_FS) != 0 &&
last_txs->txs_firstdesc != lasttx) {
sc->sc_txdescs[last_txs->txs_firstdesc].td_ctl |=
htole32(TDCTL_Tx_IC);
TULIP_CDTXSYNC(sc, last_txs->txs_firstdesc, 1,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
}
/*
* The entire packet chain is set up. Give the
* first descriptor to the chip now.
*/
sc->sc_txdescs[firsttx].td_status |= htole32(TDSTAT_OWN);
TULIP_CDTXSYNC(sc, firsttx, 1,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
/* Wake up the transmitter. */
/* XXX USE AUTOPOLLING? */
TULIP_WRITE(sc, CSR_TXPOLL, TXPOLL_TPD);
/* Set a watchdog timer in case the chip flakes out. */
ifp->if_timer = 5;
}
}
/*
* tlp_watchdog: [ifnet interface function]
*
* Watchdog timer handler.
*/
void
tlp_watchdog(ifp)
struct ifnet *ifp;
{
struct tulip_softc *sc = ifp->if_softc;
int doing_setup, doing_transmit;
doing_setup = (sc->sc_flags & TULIPF_DOING_SETUP);
doing_transmit = (SIMPLEQ_FIRST(&sc->sc_txdirtyq) != NULL);
if (doing_setup && doing_transmit) {
printf("%s: filter setup and transmit timeout\n",
sc->sc_dev.dv_xname);
ifp->if_oerrors++;
} else if (doing_transmit) {
printf("%s: transmit timeout\n", sc->sc_dev.dv_xname);
ifp->if_oerrors++;
} else if (doing_setup)
printf("%s: filter setup timeout\n", sc->sc_dev.dv_xname);
else
printf("%s: spurious watchdog timeout\n", sc->sc_dev.dv_xname);
(void) tlp_init(sc);
/* Try to get more packets going. */
tlp_start(ifp);
}
/*
* tlp_ioctl: [ifnet interface function]
*
* Handle control requests from the operator.
*/
int
tlp_ioctl(ifp, cmd, data)
struct ifnet *ifp;
u_long cmd;
caddr_t data;
{
struct tulip_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
int s, error = 0;
s = splnet();
switch (cmd) {
case SIOCSIFADDR:
if ((error = tlp_enable(sc)) != 0)
break;
ifp->if_flags |= IFF_UP;
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
if ((error = tlp_init(sc)) != 0)
break;
arp_ifinit(ifp, ifa);
break;
#endif /* INET */
#ifdef NS
case AF_NS:
{
struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
if (ns_nullhost(*ina))
ina->x_host = *(union ns_host *)
LLADDR(ifp->if_sadl);
else
bcopy(ina->x_host.c_host, LLADDR(ifp->if_sadl),
ifp->if_addrlen);
/* Set new address. */
error = tlp_init(sc);
break;
}
#endif /* NS */
default:
error = tlp_init(sc);
break;
}
break;
case SIOCSIFMTU:
if (ifr->ifr_mtu > ETHERMTU)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCSIFFLAGS:
#ifdef TLP_STATS
if (ifp->if_flags & IFF_DEBUG)
tlp_print_stats(sc);
#endif
if ((ifp->if_flags & IFF_UP) == 0 &&
(ifp->if_flags & IFF_RUNNING) != 0) {
/*
* If interface is marked down and it is running, then
* stop it.
*/
tlp_stop(sc, 1);
tlp_disable(sc);
} else if ((ifp->if_flags & IFF_UP) != 0 &&
(ifp->if_flags & IFF_RUNNING) == 0) {
/*
* If interfase it marked up and it is stopped, then
* start it.
*/
if ((error = tlp_enable(sc)) != 0)
break;
error = tlp_init(sc);
} else if ((ifp->if_flags & IFF_UP) != 0) {
/*
* Reset the interface to pick up changes in any other
* flags that affect the hardware state.
*/
if ((error = tlp_enable(sc)) != 0)
break;
error = tlp_init(sc);
}
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
error = (cmd == SIOCADDMULTI) ?
ether_addmulti(ifr, &sc->sc_ethercom) :
ether_delmulti(ifr, &sc->sc_ethercom);
if (TULIP_IS_ENABLED(sc) && error == ENETRESET) {
/*
* Multicast list has changed. Set the filter
* accordingly.
*/
(*sc->sc_filter_setup)(sc);
error = 0;
}
break;
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd);
break;
default:
error = EINVAL;
break;
}
/* Try to get more packets going. */
if (TULIP_IS_ENABLED(sc))
tlp_start(ifp);
splx(s);
return (error);
}
/*
* tlp_intr:
*
* Interrupt service routine.
*/
int
tlp_intr(arg)
void *arg;
{
struct tulip_softc *sc = arg;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
u_int32_t status, rxstatus, txstatus;
int handled = 0, txthresh;
DPRINTF(sc, ("%s: tlp_intr\n", sc->sc_dev.dv_xname));
#ifdef DEBUG
if (TULIP_IS_ENABLED(sc) == 0)
panic("%s: tlp_intr: not enabled\n", sc->sc_dev.dv_xname);
#endif
/*
* If the interface isn't running, the interrupt couldn't
* possibly have come from us.
*/
if ((ifp->if_flags & IFF_RUNNING) == 0 ||
(sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
return (0);
for (;;) {
status = TULIP_READ(sc, CSR_STATUS);
if (status)
TULIP_WRITE(sc, CSR_STATUS, status);
if ((status & sc->sc_inten) == 0)
break;
handled = 1;
rxstatus = status & sc->sc_rxint_mask;
txstatus = status & sc->sc_txint_mask;
if (rxstatus) {
/* Grab new any new packets. */
tlp_rxintr(sc);
if (rxstatus & STATUS_RWT)
printf("%s: receive watchdog timeout\n",
sc->sc_dev.dv_xname);
if (rxstatus & STATUS_RU) {
printf("%s: receive ring overrun\n",
sc->sc_dev.dv_xname);
/* Get the receive process going again. */
tlp_idle(sc, OPMODE_SR);
TULIP_WRITE(sc, CSR_RXLIST,
TULIP_CDRXADDR(sc, sc->sc_rxptr));
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
TULIP_WRITE(sc, CSR_RXPOLL, RXPOLL_RPD);
break;
}
}
if (txstatus) {
/* Sweep up transmit descriptors. */
tlp_txintr(sc);
if (txstatus & STATUS_TJT)
printf("%s: transmit jabber timeout\n",
sc->sc_dev.dv_xname);
if (txstatus & STATUS_UNF) {
/*
* Increase our transmit threshold if
* another is available.
*/
txthresh = sc->sc_txthresh + 1;
if (sc->sc_txth[txthresh].txth_name != NULL) {
/* Idle the transmit process. */
tlp_idle(sc, OPMODE_ST);
sc->sc_txthresh = txthresh;
sc->sc_opmode &= ~(OPMODE_TR|OPMODE_SF);
sc->sc_opmode |=
sc->sc_txth[txthresh].txth_opmode;
printf("%s: transmit underrun; new "
"threshold: %s\n",
sc->sc_dev.dv_xname,
sc->sc_txth[txthresh].txth_name);
/*
* Set the new threshold and restart
* the transmit process.
*/
TULIP_WRITE(sc, CSR_OPMODE,
sc->sc_opmode);
}
/*
* XXX Log every Nth underrun from
* XXX now on?
*/
}
}
if (status & (STATUS_TPS|STATUS_RPS)) {
if (status & STATUS_TPS)
printf("%s: transmit process stopped\n",
sc->sc_dev.dv_xname);
if (status & STATUS_RPS)
printf("%s: receive process stopped\n",
sc->sc_dev.dv_xname);
(void) tlp_init(sc);
break;
}
if (status & STATUS_SE) {
const char *str;
switch (status & STATUS_EB) {
case STATUS_EB_PARITY:
str = "parity error";
break;
case STATUS_EB_MABT:
str = "master abort";
break;
case STATUS_EB_TABT:
str = "target abort";
break;
default:
str = "unknown error";
break;
}
printf("%s: fatal system error: %s\n",
sc->sc_dev.dv_xname, str);
(void) tlp_init(sc);
break;
}
/*
* Not handled:
*
* Transmit buffer unavailable -- normal
* condition, nothing to do, really.
*
* General purpose timer experied -- we don't
* use the general purpose timer.
*
* Early receive interrupt -- not available on
* all chips, we just use RI. We also only
* use single-segment receive DMA, so this
* is mostly useless.
*/
}
/* Try to get more packets going. */
tlp_start(ifp);
return (handled);
}
/*
* tlp_rxintr:
*
* Helper; handle receive interrupts.
*/
void
tlp_rxintr(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct ether_header *eh;
struct tulip_rxsoft *rxs;
struct mbuf *m;
u_int32_t rxstat;
int i, len;
for (i = sc->sc_rxptr;; i = TULIP_NEXTRX(i)) {
rxs = &sc->sc_rxsoft[i];
TULIP_CDRXSYNC(sc, i,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
rxstat = le32toh(sc->sc_rxdescs[i].td_status);
if (rxstat & TDSTAT_OWN) {
/*
* We have processed all of the receive buffers.
*/
break;
}
/*
* Make sure the packet fit in one buffer. This should
* always be the case. But the Lite-On PNIC, rev 33
* has an awful receive engine bug, which may require
* a very icky work-around.
*/
if ((rxstat & (TDSTAT_Rx_FS|TDSTAT_Rx_LS)) !=
(TDSTAT_Rx_FS|TDSTAT_Rx_LS)) {
printf("%s: incoming packet spilled, resetting\n",
sc->sc_dev.dv_xname);
(void) tlp_init(sc);
return;
}
/*
* If any collisions were seen on the wire, count one.
*/
if (rxstat & TDSTAT_Rx_CS)
ifp->if_collisions++;
/*
* If an error occured, update stats, clear the status
* word, and leave the packet buffer in place. It will
* simply be reused the next time the ring comes around.
*/
if (rxstat & TDSTAT_ES) {
#define PRINTERR(bit, str) \
if (rxstat & (bit)) \
printf("%s: receive error: %s\n", \
sc->sc_dev.dv_xname, str)
ifp->if_ierrors++;
PRINTERR(TDSTAT_Rx_DE, "descriptor error");
PRINTERR(TDSTAT_Rx_RF, "runt frame");
PRINTERR(TDSTAT_Rx_TL, "frame too long");
PRINTERR(TDSTAT_Rx_RE, "MII error");
PRINTERR(TDSTAT_Rx_DB, "dribbling bit");
PRINTERR(TDSTAT_Rx_CE, "CRC error");
#undef PRINTERR
TULIP_INIT_RXDESC(sc, i);
continue;
}
bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0,
rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_POSTREAD);
/*
* No errors; receive the packet. Note the Tulip
* includes the CRC with every packet; trim it.
*/
len = TDSTAT_Rx_LENGTH(rxstat) - ETHER_CRC_LEN;
#ifdef __NO_STRICT_ALIGNMENT
/*
* Allocate a new mbuf cluster. If that fails, we are
* out of memory, and must drop the packet and recycle
* the buffer that's already attached to this descriptor.
*/
m = rxs->rxs_mbuf;
if (tlp_add_rxbuf(sc, i) != 0) {
ifp->if_ierrors++;
TULIP_INIT_RXDESC(sc, i);
bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0,
rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
continue;
}
#else
/*
* The Tulip's receive buffers must be 4-byte aligned.
* But this means that the data after the Ethernet header
* is misaligned. We must allocate a new buffer and
* copy the data, shifted forward 2 bytes.
*/
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL) {
dropit:
ifp->if_ierrors++;
TULIP_INIT_RXDESC(sc, i);
bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0,
rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
continue;
}
if (len > (MHLEN - 2)) {
MCLGET(m, M_DONTWAIT);
if ((m->m_flags & M_EXT) == 0) {
m_freem(m);
goto dropit;
}
}
m->m_data += 2;
/*
* Note that we use clusters for incoming frames, so the
* buffer is virtually contiguous.
*/
memcpy(mtod(m, caddr_t), mtod(rxs->rxs_mbuf, caddr_t), len);
/* Allow the receive descriptor to continue using its mbuf. */
TULIP_INIT_RXDESC(sc, i);
bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0,
rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
#endif /* __NO_STRICT_ALIGNMENT */
ifp->if_ipackets++;
eh = mtod(m, struct ether_header *);
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = m->m_len = len;
#if NBPFILTER > 0
/*
* Pass this up to any BPF listeners, but only
* pass it up the stack if its for us.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif /* NPBFILTER > 0 */
/*
* This test is outside the NBPFILTER block because
* on the 21140 we have to use Hash-Only mode due to
* a bug in the filter logic.
*/
if ((ifp->if_flags & IFF_PROMISC) != 0 ||
sc->sc_filtmode == TDCTL_Tx_FT_HASHONLY) {
if (memcmp(LLADDR(ifp->if_sadl), eh->ether_dhost,
ETHER_ADDR_LEN) != 0 &&
ETHER_IS_MULTICAST(eh->ether_dhost) == 0) {
m_freem(m);
continue;
}
}
/* Pass it on. */
(*ifp->if_input)(ifp, m);
}
/* Update the recieve pointer. */
sc->sc_rxptr = i;
}
/*
* tlp_txintr:
*
* Helper; handle transmit interrupts.
*/
void
tlp_txintr(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct tulip_txsoft *txs;
u_int32_t txstat;
DPRINTF(sc, ("%s: tlp_txintr: sc_flags 0x%08x\n",
sc->sc_dev.dv_xname, sc->sc_flags));
ifp->if_flags &= ~IFF_OACTIVE;
/*
* Go through our Tx list and free mbufs for those
* frames that have been transmitted.
*/
while ((txs = SIMPLEQ_FIRST(&sc->sc_txdirtyq)) != NULL) {
TULIP_CDTXSYNC(sc, txs->txs_lastdesc,
txs->txs_ndescs,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
#ifdef TLP_DEBUG
if (ifp->if_flags & IFF_DEBUG) {
int i;
printf(" txsoft %p trainsmit chain:\n", txs);
for (i = txs->txs_firstdesc;; i = TULIP_NEXTTX(i)) {
printf(" descriptor %d:\n", i);
printf(" td_status: 0x%08x\n",
le32toh(sc->sc_txdescs[i].td_status));
printf(" td_ctl: 0x%08x\n",
le32toh(sc->sc_txdescs[i].td_ctl));
printf(" td_bufaddr1: 0x%08x\n",
le32toh(sc->sc_txdescs[i].td_bufaddr1));
printf(" td_bufaddr2: 0x%08x\n",
le32toh(sc->sc_txdescs[i].td_bufaddr2));
if (i == txs->txs_lastdesc)
break;
}
}
#endif
txstat = le32toh(sc->sc_txdescs[txs->txs_lastdesc].td_status);
if (txstat & TDSTAT_OWN)
break;
SIMPLEQ_REMOVE_HEAD(&sc->sc_txdirtyq, txs, txs_q);
sc->sc_txfree += txs->txs_ndescs;
if (txs->txs_mbuf == NULL) {
/*
* If we didn't have an mbuf, it was the setup
* packet.
*/
#ifdef DIAGNOSTIC
if ((sc->sc_flags & TULIPF_DOING_SETUP) == 0)
panic("tlp_txintr: null mbuf, not doing setup");
#endif
TULIP_CDSPSYNC(sc, BUS_DMASYNC_POSTWRITE);
sc->sc_flags &= ~TULIPF_DOING_SETUP;
SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);
continue;
}
bus_dmamap_sync(sc->sc_dmat, txs->txs_dmamap,
0, txs->txs_dmamap->dm_mapsize,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->sc_dmat, txs->txs_dmamap);
m_freem(txs->txs_mbuf);
txs->txs_mbuf = NULL;
SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);
/*
* Check for errors and collisions.
*/
#ifdef TLP_STATS
if (txstat & TDSTAT_Tx_UF)
sc->sc_stats.ts_tx_uf++;
if (txstat & TDSTAT_Tx_TO)
sc->sc_stats.ts_tx_to++;
if (txstat & TDSTAT_Tx_EC)
sc->sc_stats.ts_tx_ec++;
if (txstat & TDSTAT_Tx_LC)
sc->sc_stats.ts_tx_lc++;
#endif
if (txstat & (TDSTAT_Tx_UF|TDSTAT_Tx_TO))
ifp->if_oerrors++;
if (txstat & TDSTAT_Tx_EC)
ifp->if_collisions += 16;
else
ifp->if_collisions += TDSTAT_Tx_COLLISIONS(txstat);
if (txstat & TDSTAT_Tx_LC)
ifp->if_collisions++;
ifp->if_opackets++;
}
/*
* If there are no more pending transmissions, cancel the watchdog
* timer.
*/
if (txs == NULL && (sc->sc_flags & TULIPF_DOING_SETUP) == 0)
ifp->if_timer = 0;
/*
* If we have a receive filter setup pending, do it now.
*/
if (sc->sc_flags & TULIPF_WANT_SETUP)
(*sc->sc_filter_setup)(sc);
}
#ifdef TLP_STATS
void
tlp_print_stats(sc)
struct tulip_softc *sc;
{
printf("%s: tx_uf %lu, tx_to %lu, tx_ec %lu, tx_lc %lu\n",
sc->sc_dev.dv_xname,
sc->sc_stats.ts_tx_uf, sc->sc_stats.ts_tx_to,
sc->sc_stats.ts_tx_ec, sc->sc_stats.ts_tx_lc);
}
#endif
/*
* tlp_reset:
*
* Perform a soft reset on the Tulip.
*/
void
tlp_reset(sc)
struct tulip_softc *sc;
{
int i;
TULIP_WRITE(sc, CSR_BUSMODE, BUSMODE_SWR);
/*
* Xircom clone doesn't bring itself out of reset automatically.
* Instead, we have to wait at least 50 PCI cycles, and then
* clear SWR.
*/
if (sc->sc_chip == TULIP_CHIP_X3201_3) {
delay(10);
TULIP_WRITE(sc, CSR_BUSMODE, 0);
}
for (i = 0; i < 1000; i++) {
/*
* Wait at least 50 PCI cycles for the reset to
* complete before peeking at the Tulip again.
* 10 uSec is a bit longer than 50 PCI cycles
* (at 33MHz), but it doesn't hurt have the extra
* wait.
*/
delay(10);
if (TULIP_ISSET(sc, CSR_BUSMODE, BUSMODE_SWR) == 0)
break;
}
if (TULIP_ISSET(sc, CSR_BUSMODE, BUSMODE_SWR))
printf("%s: reset failed to complete\n", sc->sc_dev.dv_xname);
delay(1000);
/*
* If the board has any GPIO reset sequences to issue, do them now.
*/
if (sc->sc_reset != NULL)
(*sc->sc_reset)(sc);
}
/*
* tlp_init:
*
* Initialize the interface. Must be called at splnet().
*/
int
tlp_init(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct tulip_txsoft *txs;
struct tulip_rxsoft *rxs;
int i, error = 0;
/*
* Cancel any pending I/O.
*/
tlp_stop(sc, 0);
/*
* Initialize `opmode' to 0, and call the pre-init routine, if
* any. This is required because the 2114x and some of the
* clones require that the media-related bits in `opmode' be
* set before performing a soft-reset in order to get internal
* chip pathways are correct. Yay!
*/
sc->sc_opmode = 0;
if (sc->sc_preinit != NULL)
(*sc->sc_preinit)(sc);
/*
* Reset the Tulip to a known state.
*/
tlp_reset(sc);
/*
* Initialize the BUSMODE register.
*/
sc->sc_busmode = BUSMODE_BAR;
switch (sc->sc_chip) {
case TULIP_CHIP_21140:
case TULIP_CHIP_21140A:
case TULIP_CHIP_21142:
case TULIP_CHIP_21143:
case TULIP_CHIP_82C115:
case TULIP_CHIP_MX98725:
/*
* If we're allowed to do so, use Memory Read Line
* and Memory Read Multiple.
*
* XXX Should we use Memory Write and Invalidate?
*/
if (sc->sc_flags & TULIPF_MRL)
sc->sc_busmode |= BUSMODE_RLE;
if (sc->sc_flags & TULIPF_MRM)
sc->sc_busmode |= BUSMODE_RME;
#if 0
if (sc->sc_flags & TULIPF_MWI)
sc->sc_busmode |= BUSMODE_WLE;
#endif
default:
/* Nothing. */
}
switch (sc->sc_cacheline) {
default:
/*
* Note: We must *always* set these bits; a cache
* alignment of 0 is RESERVED.
*/
case 8:
sc->sc_busmode |= BUSMODE_CAL_8LW;
break;
case 16:
sc->sc_busmode |= BUSMODE_CAL_16LW;
break;
case 32:
sc->sc_busmode |= BUSMODE_CAL_32LW;
break;
}
switch (sc->sc_chip) {
case TULIP_CHIP_82C168:
case TULIP_CHIP_82C169:
sc->sc_busmode |= BUSMODE_PBL_16LW | BUSMODE_PNIC_MBO;
break;
default:
sc->sc_busmode |= BUSMODE_PBL_DEFAULT;
break;
}
#if BYTE_ORDER == BIG_ENDIAN
/*
* Can't use BUSMODE_BLE or BUSMODE_DBO; not all chips
* support them, and even on ones that do, it doesn't
* always work.
*/
#endif
TULIP_WRITE(sc, CSR_BUSMODE, sc->sc_busmode);
/*
* Initialize the OPMODE register. We don't write it until
* we're ready to begin the transmit and receive processes.
*
* Media-related OPMODE bits are set in the media callbacks
* for each specific chip/board.
*/
sc->sc_opmode |= OPMODE_SR | OPMODE_ST |
sc->sc_txth[sc->sc_txthresh].txth_opmode;
/*
* Magical mystery initialization on the Macronix chips.
* The MX98713 uses its own magic value, the rest share
* a common one.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_MX98713:
TULIP_WRITE(sc, CSR_PMAC_TOR, PMAC_TOR_98713);
break;
case TULIP_CHIP_MX98713A:
case TULIP_CHIP_MX98715:
case TULIP_CHIP_MX98715A:
case TULIP_CHIP_MX98725:
TULIP_WRITE(sc, CSR_PMAC_TOR, PMAC_TOR_98715);
break;
default:
/* Nothing. */
}
/*
* Initialize the transmit descriptor ring.
*/
memset(sc->sc_txdescs, 0, sizeof(sc->sc_txdescs));
for (i = 0; i < TULIP_NTXDESC; i++) {
sc->sc_txdescs[i].td_ctl = htole32(sc->sc_tdctl_ch);
sc->sc_txdescs[i].td_bufaddr2 =
htole32(TULIP_CDTXADDR(sc, TULIP_NEXTTX(i)));
}
sc->sc_txdescs[TULIP_NTXDESC - 1].td_ctl |= htole32(sc->sc_tdctl_er);
TULIP_CDTXSYNC(sc, 0, TULIP_NTXDESC,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
sc->sc_txfree = TULIP_NTXDESC;
sc->sc_txnext = 0;
/*
* Initialize the transmit job descriptors.
*/
SIMPLEQ_INIT(&sc->sc_txfreeq);
SIMPLEQ_INIT(&sc->sc_txdirtyq);
for (i = 0; i < TULIP_TXQUEUELEN; i++) {
txs = &sc->sc_txsoft[i];
txs->txs_mbuf = NULL;
SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);
}
/*
* Initialize the receive descriptor and receive job
* descriptor rings.
*/
for (i = 0; i < TULIP_NRXDESC; i++) {
rxs = &sc->sc_rxsoft[i];
if (rxs->rxs_mbuf == NULL) {
if ((error = tlp_add_rxbuf(sc, i)) != 0) {
printf("%s: unable to allocate or map rx "
"buffer %d, error = %d\n",
sc->sc_dev.dv_xname, i, error);
/*
* XXX Should attempt to run with fewer receive
* XXX buffers instead of just failing.
*/
tlp_rxdrain(sc);
goto out;
}
}
}
sc->sc_rxptr = 0;
/*
* Initialize the interrupt mask and enable interrupts.
*/
/* normal interrupts */
sc->sc_inten = STATUS_TI | STATUS_TU | STATUS_RI | STATUS_NIS;
/* abnormal interrupts */
sc->sc_inten |= STATUS_TPS | STATUS_TJT | STATUS_UNF |
STATUS_RU | STATUS_RPS | STATUS_RWT | STATUS_SE | STATUS_AIS;
sc->sc_rxint_mask = STATUS_RI|STATUS_RU|STATUS_RWT;
sc->sc_txint_mask = STATUS_TI|STATUS_UNF|STATUS_TJT;
switch (sc->sc_chip) {
case TULIP_CHIP_WB89C840F:
/*
* Clear bits that we don't want that happen to
* overlap or don't exist.
*/
sc->sc_inten &= ~(STATUS_WINB_REI|STATUS_RWT);
break;
default:
/* Nothing. */
}
sc->sc_rxint_mask &= sc->sc_inten;
sc->sc_txint_mask &= sc->sc_inten;
TULIP_WRITE(sc, CSR_INTEN, sc->sc_inten);
TULIP_WRITE(sc, CSR_STATUS, 0xffffffff);
/*
* Give the transmit and receive rings to the Tulip.
*/
TULIP_WRITE(sc, CSR_TXLIST, TULIP_CDTXADDR(sc, sc->sc_txnext));
TULIP_WRITE(sc, CSR_RXLIST, TULIP_CDRXADDR(sc, sc->sc_rxptr));
/*
* On chips that do this differently, set the station address.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_WB89C840F:
{
/* XXX Do this with stream writes? */
bus_addr_t cpa = TULIP_CSR_OFFSET(sc, CSR_WINB_CPA0);
for (i = 0; i < ETHER_ADDR_LEN; i++) {
bus_space_write_1(sc->sc_st, sc->sc_sh,
cpa + i, LLADDR(ifp->if_sadl)[i]);
}
break;
}
case TULIP_CHIP_AL981:
{
u_int32_t reg;
u_int8_t *enaddr = LLADDR(ifp->if_sadl);
reg = enaddr[0] |
(enaddr[1] << 8) |
(enaddr[2] << 16) |
(enaddr[3] << 24);
bus_space_write_4(sc->sc_st, sc->sc_sh, CSR_ADM_PAR0, reg);
reg = enaddr[4] |
(enaddr[5] << 8);
bus_space_write_4(sc->sc_st, sc->sc_sh, CSR_ADM_PAR1, reg);
}
default:
/* Nothing. */
}
/*
* Set the receive filter. This will start the transmit and
* receive processes.
*/
(*sc->sc_filter_setup)(sc);
/*
* Set the current media.
*/
(void) (*sc->sc_mediasw->tmsw_set)(sc);
/*
* Start the receive process.
*/
TULIP_WRITE(sc, CSR_RXPOLL, RXPOLL_RPD);
if (sc->sc_tick != NULL) {
/* Start the one second clock. */
callout_reset(&sc->sc_tick_callout, hz, sc->sc_tick, sc);
}
/*
* Note that the interface is now running.
*/
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
out:
if (error)
printf("%s: interface not running\n", sc->sc_dev.dv_xname);
return (error);
}
/*
* tlp_enable:
*
* Enable the Tulip chip.
*/
int
tlp_enable(sc)
struct tulip_softc *sc;
{
if (TULIP_IS_ENABLED(sc) == 0 && sc->sc_enable != NULL) {
if ((*sc->sc_enable)(sc) != 0) {
printf("%s: device enable failed\n",
sc->sc_dev.dv_xname);
return (EIO);
}
sc->sc_flags |= TULIPF_ENABLED;
}
return (0);
}
/*
* tlp_disable:
*
* Disable the Tulip chip.
*/
void
tlp_disable(sc)
struct tulip_softc *sc;
{
if (TULIP_IS_ENABLED(sc) && sc->sc_disable != NULL) {
(*sc->sc_disable)(sc);
sc->sc_flags &= ~TULIPF_ENABLED;
}
}
/*
* tlp_power:
*
* Power management (suspend/resume) hook.
*/
void
tlp_power(why, arg)
int why;
void *arg;
{
struct tulip_softc *sc = arg;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
int s;
s = splnet();
if (why != PWR_RESUME) {
tlp_stop(sc, 0);
if (sc->sc_power != NULL)
(*sc->sc_power)(sc, why);
} else if (ifp->if_flags & IFF_UP) {
if (sc->sc_power != NULL)
(*sc->sc_power)(sc, why);
tlp_init(sc);
}
splx(s);
}
/*
* tlp_rxdrain:
*
* Drain the receive queue.
*/
void
tlp_rxdrain(sc)
struct tulip_softc *sc;
{
struct tulip_rxsoft *rxs;
int i;
for (i = 0; i < TULIP_NRXDESC; i++) {
rxs = &sc->sc_rxsoft[i];
if (rxs->rxs_mbuf != NULL) {
bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap);
m_freem(rxs->rxs_mbuf);
rxs->rxs_mbuf = NULL;
}
}
}
/*
* tlp_stop:
*
* Stop transmission on the interface.
*/
void
tlp_stop(sc, drain)
struct tulip_softc *sc;
int drain;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct tulip_txsoft *txs;
if (sc->sc_tick != NULL) {
/* Stop the one second clock. */
callout_stop(&sc->sc_tick_callout);
}
if (sc->sc_flags & TULIPF_HAS_MII) {
/* Down the MII. */
mii_down(&sc->sc_mii);
}
/* Disable interrupts. */
TULIP_WRITE(sc, CSR_INTEN, 0);
/* Stop the transmit and receive processes. */
TULIP_WRITE(sc, CSR_OPMODE, 0);
TULIP_WRITE(sc, CSR_RXLIST, 0);
TULIP_WRITE(sc, CSR_TXLIST, 0);
/*
* Release any queued transmit buffers.
*/
while ((txs = SIMPLEQ_FIRST(&sc->sc_txdirtyq)) != NULL) {
SIMPLEQ_REMOVE_HEAD(&sc->sc_txdirtyq, txs, txs_q);
if (txs->txs_mbuf != NULL) {
bus_dmamap_unload(sc->sc_dmat, txs->txs_dmamap);
m_freem(txs->txs_mbuf);
txs->txs_mbuf = NULL;
}
SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);
}
if (drain) {
/*
* Release the receive buffers.
*/
tlp_rxdrain(sc);
}
sc->sc_flags &= ~(TULIPF_WANT_SETUP|TULIPF_DOING_SETUP);
/*
* Mark the interface down and cancel the watchdog timer.
*/
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
ifp->if_timer = 0;
}
#define SROM_EMIT(sc, x) \
do { \
TULIP_WRITE((sc), CSR_MIIROM, (x)); \
delay(2); \
} while (0)
/*
* tlp_srom_idle:
*
* Put the SROM in idle state.
*/
void
tlp_srom_idle(sc)
struct tulip_softc *sc;
{
u_int32_t miirom;
int i;
miirom = MIIROM_SR;
SROM_EMIT(sc, miirom);
miirom |= MIIROM_RD;
SROM_EMIT(sc, miirom);
miirom |= MIIROM_SROMCS;
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
/* Strobe the clock 32 times. */
for (i = 0; i < 32; i++) {
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
}
SROM_EMIT(sc, miirom);
miirom &= ~MIIROM_SROMCS;
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, 0);
}
/*
* tlp_srom_size:
*
* Determine the number of address bits in the SROM.
*/
int
tlp_srom_size(sc)
struct tulip_softc *sc;
{
u_int32_t miirom;
int x;
/* Select the SROM. */
miirom = MIIROM_SR;
SROM_EMIT(sc, miirom);
miirom |= MIIROM_RD;
SROM_EMIT(sc, miirom);
/* Send CHIP SELECT for one clock tick. */
miirom |= MIIROM_SROMCS;
SROM_EMIT(sc, miirom);
/* Shift in the READ opcode. */
for (x = 3; x > 0; x--) {
if (TULIP_SROM_OPC_READ & (1 << (x - 1)))
miirom |= MIIROM_SROMDI;
else
miirom &= ~MIIROM_SROMDI;
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
SROM_EMIT(sc, miirom);
}
/* Shift in address and look for dummy 0 bit. */
for (x = 1; x <= 12; x++) {
miirom &= ~MIIROM_SROMDI;
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
if (!TULIP_ISSET(sc, CSR_MIIROM, MIIROM_SROMDO))
break;
SROM_EMIT(sc, miirom);
}
/* Clear CHIP SELECT. */
miirom &= ~MIIROM_SROMCS;
SROM_EMIT(sc, miirom);
/* Deselect the SROM. */
SROM_EMIT(sc, 0);
if (x < 4 || x > 12) {
printf("%s: broken MicroWire interface detected; "
"setting SROM size to 1Kb\n", sc->sc_dev.dv_xname);
return (6);
} else {
if (tlp_srom_debug)
printf("%s: SROM size is 2^%d*16 bits (%d bytes)\n",
sc->sc_dev.dv_xname, x, (1 << (x + 4)) >> 3);
return (x);
}
}
/*
* tlp_read_srom:
*
* Read the Tulip SROM.
*/
int
tlp_read_srom(sc)
struct tulip_softc *sc;
{
int size;
u_int32_t miirom;
u_int16_t datain;
int i, x;
tlp_srom_idle(sc);
sc->sc_srom_addrbits = tlp_srom_size(sc);
if (sc->sc_srom_addrbits == 0)
return (0);
size = TULIP_ROM_SIZE(sc->sc_srom_addrbits);
sc->sc_srom = malloc(size, M_DEVBUF, M_NOWAIT);
/* Select the SROM. */
miirom = MIIROM_SR;
SROM_EMIT(sc, miirom);
miirom |= MIIROM_RD;
SROM_EMIT(sc, miirom);
for (i = 0; i < size; i += 2) {
/* Send CHIP SELECT for one clock tick. */
miirom |= MIIROM_SROMCS;
SROM_EMIT(sc, miirom);
/* Shift in the READ opcode. */
for (x = 3; x > 0; x--) {
if (TULIP_SROM_OPC_READ & (1 << (x - 1)))
miirom |= MIIROM_SROMDI;
else
miirom &= ~MIIROM_SROMDI;
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
SROM_EMIT(sc, miirom);
}
/* Shift in address. */
for (x = sc->sc_srom_addrbits; x > 0; x--) {
if (i & (1 << x))
miirom |= MIIROM_SROMDI;
else
miirom &= ~MIIROM_SROMDI;
SROM_EMIT(sc, miirom);
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
SROM_EMIT(sc, miirom);
}
/* Shift out data. */
miirom &= ~MIIROM_SROMDI;
datain = 0;
for (x = 16; x > 0; x--) {
SROM_EMIT(sc, miirom|MIIROM_SROMSK);
if (TULIP_ISSET(sc, CSR_MIIROM, MIIROM_SROMDO))
datain |= (1 << (x - 1));
SROM_EMIT(sc, miirom);
}
sc->sc_srom[i] = datain & 0xff;
sc->sc_srom[i + 1] = datain >> 8;
/* Clear CHIP SELECT. */
miirom &= ~MIIROM_SROMCS;
SROM_EMIT(sc, miirom);
}
/* Deselect the SROM. */
SROM_EMIT(sc, 0);
/* ...and idle it. */
tlp_srom_idle(sc);
if (tlp_srom_debug) {
printf("SROM CONTENTS:");
for (i = 0; i < size; i++) {
if ((i % 8) == 0)
printf("\n\t");
printf("0x%02x ", sc->sc_srom[i]);
}
printf("\n");
}
return (1);
}
#undef SROM_EMIT
/*
* tlp_add_rxbuf:
*
* Add a receive buffer to the indicated descriptor.
*/
int
tlp_add_rxbuf(sc, idx)
struct tulip_softc *sc;
int idx;
{
struct tulip_rxsoft *rxs = &sc->sc_rxsoft[idx];
struct mbuf *m;
int error;
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL)
return (ENOBUFS);
MCLGET(m, M_DONTWAIT);
if ((m->m_flags & M_EXT) == 0) {
m_freem(m);
return (ENOBUFS);
}
if (rxs->rxs_mbuf != NULL)
bus_dmamap_unload(sc->sc_dmat, rxs->rxs_dmamap);
rxs->rxs_mbuf = m;
error = bus_dmamap_load(sc->sc_dmat, rxs->rxs_dmamap,
m->m_ext.ext_buf, m->m_ext.ext_size, NULL, BUS_DMA_NOWAIT);
if (error) {
printf("%s: can't load rx DMA map %d, error = %d\n",
sc->sc_dev.dv_xname, idx, error);
panic("tlp_add_rxbuf"); /* XXX */
}
bus_dmamap_sync(sc->sc_dmat, rxs->rxs_dmamap, 0,
rxs->rxs_dmamap->dm_mapsize, BUS_DMASYNC_PREREAD);
TULIP_INIT_RXDESC(sc, idx);
return (0);
}
/*
* tlp_crc32:
*
* Compute the 32-bit CRC of the provided buffer.
*/
u_int32_t
tlp_crc32(buf, len)
const u_int8_t *buf;
size_t len;
{
static const u_int32_t crctab[] = {
0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac,
0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c,
0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c
};
u_int32_t crc;
int i;
crc = 0xffffffff;
for (i = 0; i < len; i++) {
crc ^= buf[i];
crc = (crc >> 4) ^ crctab[crc & 0xf];
crc = (crc >> 4) ^ crctab[crc & 0xf];
}
return (crc);
}
/*
* tlp_srom_crcok:
*
* Check the CRC of the Tulip SROM.
*/
int
tlp_srom_crcok(romdata)
const u_int8_t *romdata;
{
u_int32_t crc;
crc = tlp_crc32(romdata, TULIP_ROM_CRC32_CHECKSUM);
crc = (crc & 0xffff) ^ 0xffff;
if (crc == TULIP_ROM_GETW(romdata, TULIP_ROM_CRC32_CHECKSUM))
return (1);
/*
* Try an alternate checksum.
*/
crc = tlp_crc32(romdata, TULIP_ROM_CRC32_CHECKSUM1);
crc = (crc & 0xffff) ^ 0xffff;
if (crc == TULIP_ROM_GETW(romdata, TULIP_ROM_CRC32_CHECKSUM1))
return (1);
return (0);
}
/*
* tlp_isv_srom:
*
* Check to see if the SROM is in the new standardized format.
*/
int
tlp_isv_srom(romdata)
const u_int8_t *romdata;
{
int i;
u_int16_t cksum;
if (tlp_srom_crcok(romdata)) {
/*
* SROM CRC checks out; must be in the new format.
*/
return (1);
}
cksum = TULIP_ROM_GETW(romdata, TULIP_ROM_CRC32_CHECKSUM);
if (cksum == 0xffff || cksum == 0) {
/*
* No checksum present. Check the SROM ID; 18 bytes of 0
* followed by 1 (version) followed by the number of
* adapters which use this SROM (should be non-zero).
*/
for (i = 0; i < TULIP_ROM_SROM_FORMAT_VERION; i++) {
if (romdata[i] != 0)
return (0);
}
if (romdata[TULIP_ROM_SROM_FORMAT_VERION] != 1)
return (0);
if (romdata[TULIP_ROM_CHIP_COUNT] == 0)
return (0);
return (1);
}
return (0);
}
/*
* tlp_isv_srom_enaddr:
*
* Get the Ethernet address from an ISV SROM.
*/
int
tlp_isv_srom_enaddr(sc, enaddr)
struct tulip_softc *sc;
u_int8_t *enaddr;
{
int i, devcnt;
if (tlp_isv_srom(sc->sc_srom) == 0)
return (0);
devcnt = sc->sc_srom[TULIP_ROM_CHIP_COUNT];
for (i = 0; i < devcnt; i++) {
if (sc->sc_srom[TULIP_ROM_CHIP_COUNT] == 1)
break;
if (sc->sc_srom[TULIP_ROM_CHIPn_DEVICE_NUMBER(i)] ==
sc->sc_devno)
break;
}
if (i == devcnt)
return (0);
memcpy(enaddr, &sc->sc_srom[TULIP_ROM_IEEE_NETWORK_ADDRESS],
ETHER_ADDR_LEN);
enaddr[5] += i;
return (1);
}
/*
* tlp_parse_old_srom:
*
* Parse old-format SROMs.
*
* This routine is largely lifted from Matt Thomas's `de' driver.
*/
int
tlp_parse_old_srom(sc, enaddr)
struct tulip_softc *sc;
u_int8_t *enaddr;
{
static const u_int8_t testpat[] =
{ 0xff, 0, 0x55, 0xaa, 0xff, 0, 0x55, 0xaa };
int i;
u_int32_t cksum;
if (memcmp(&sc->sc_srom[0], &sc->sc_srom[16], 8) != 0) {
/*
* Some vendors (e.g. ZNYX) don't use the standard
* DEC Address ROM format, but rather just have an
* Ethernet address in the first 6 bytes, maybe a
* 2 byte checksum, and then all 0xff's.
*
* On the other hand, Cobalt Networks interfaces
* simply have the address in the first six bytes
* with the rest zeroed out.
*/
for (i = 8; i < 32; i++) {
if (sc->sc_srom[i] != 0xff &&
sc->sc_srom[i] != 0)
return (0);
}
/*
* Sanity check the Ethernet address:
*
* - Make sure it's not multicast or locally
* assigned
* - Make sure it has a non-0 OUI
*/
if (sc->sc_srom[0] & 3)
return (0);
if (sc->sc_srom[0] == 0 && sc->sc_srom[1] == 0 &&
sc->sc_srom[2] == 0)
return (0);
memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN);
return (1);
}
/*
* Standard DEC Address ROM test.
*/
if (memcmp(&sc->sc_srom[24], testpat, 8) != 0)
return (0);
for (i = 0; i < 8; i++) {
if (sc->sc_srom[i] != sc->sc_srom[15 - i])
return (0);
}
memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN);
cksum = *(u_int16_t *) &enaddr[0];
cksum <<= 1;
if (cksum > 0xffff)
cksum -= 0xffff;
cksum += *(u_int16_t *) &enaddr[2];
if (cksum > 0xffff)
cksum -= 0xffff;
cksum <<= 1;
if (cksum > 0xffff)
cksum -= 0xffff;
cksum += *(u_int16_t *) &enaddr[4];
if (cksum >= 0xffff)
cksum -= 0xffff;
if (cksum != *(u_int16_t *) &sc->sc_srom[6])
return (0);
return (1);
}
/*
* tlp_filter_setup:
*
* Set the Tulip's receive filter.
*/
void
tlp_filter_setup(sc)
struct tulip_softc *sc;
{
struct ethercom *ec = &sc->sc_ethercom;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct ether_multi *enm;
struct ether_multistep step;
__volatile u_int32_t *sp;
struct tulip_txsoft *txs;
u_int8_t enaddr[ETHER_ADDR_LEN];
u_int32_t hash, hashsize;
int cnt;
DPRINTF(sc, ("%s: tlp_filter_setup: sc_flags 0x%08x\n",
sc->sc_dev.dv_xname, sc->sc_flags));
memcpy(enaddr, LLADDR(ifp->if_sadl), ETHER_ADDR_LEN);
/*
* If there are transmissions pending, wait until they have
* completed.
*/
if (SIMPLEQ_FIRST(&sc->sc_txdirtyq) != NULL ||
(sc->sc_flags & TULIPF_DOING_SETUP) != 0) {
sc->sc_flags |= TULIPF_WANT_SETUP;
DPRINTF(sc, ("%s: tlp_filter_setup: deferring\n",
sc->sc_dev.dv_xname));
return;
}
sc->sc_flags &= ~TULIPF_WANT_SETUP;
switch (sc->sc_chip) {
case TULIP_CHIP_82C115:
hashsize = TULIP_PNICII_HASHSIZE;
break;
default:
hashsize = TULIP_MCHASHSIZE;
}
/*
* If we're running, idle the transmit and receive engines. If
* we're NOT running, we're being called from tlp_init(), and our
* writing OPMODE will start the transmit and receive processes
* in motion.
*/
if (ifp->if_flags & IFF_RUNNING) {
/*
* Actually, some chips seem to need a really hard
* kick in the head for this to work. The genuine
* DEC chips can just be idled, but some of the
* clones seem to REALLY want a reset here. Doing
* the reset will end up here again, but with
* IFF_RUNNING cleared.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_82C168:
case TULIP_CHIP_82C169:
tlp_init(sc);
return;
default:
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
}
}
sc->sc_opmode &= ~(OPMODE_PR|OPMODE_PM);
if (ifp->if_flags & IFF_PROMISC) {
sc->sc_opmode |= OPMODE_PR;
goto allmulti;
}
/*
* Try Perfect filtering first.
*/
sc->sc_filtmode = TDCTL_Tx_FT_PERFECT;
sp = TULIP_CDSP(sc);
memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN);
cnt = 0;
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) {
/*
* We must listen to a range of multicast addresses.
* For now, just accept all multicasts, rather than
* trying to set only those filter bits needed to match
* the range. (At this time, the only use of address
* ranges is for IP multicast routing, for which the
* range is big enough to require all bits set.)
*/
goto allmulti;
}
if (cnt == (TULIP_MAXADDRS - 2)) {
/*
* We already have our multicast limit (still need
* our station address and broadcast). Go to
* Hash-Perfect mode.
*/
goto hashperfect;
}
cnt++;
*sp++ = TULIP_SP_FIELD(enm->enm_addrlo, 0);
*sp++ = TULIP_SP_FIELD(enm->enm_addrlo, 1);
*sp++ = TULIP_SP_FIELD(enm->enm_addrlo, 2);
ETHER_NEXT_MULTI(step, enm);
}
if (ifp->if_flags & IFF_BROADCAST) {
/* ...and the broadcast address. */
cnt++;
*sp++ = TULIP_SP_FIELD_C(0xffff);
*sp++ = TULIP_SP_FIELD_C(0xffff);
*sp++ = TULIP_SP_FIELD_C(0xffff);
}
/* Pad the rest with our station address. */
for (; cnt < TULIP_MAXADDRS; cnt++) {
*sp++ = TULIP_SP_FIELD(enaddr, 0);
*sp++ = TULIP_SP_FIELD(enaddr, 1);
*sp++ = TULIP_SP_FIELD(enaddr, 2);
}
ifp->if_flags &= ~IFF_ALLMULTI;
goto setit;
hashperfect:
/*
* Try Hash-Perfect mode.
*/
/*
* Some 21140 chips have broken Hash-Perfect modes. On these
* chips, we simply use Hash-Only mode, and put our station
* address into the filter.
*/
if (sc->sc_chip == TULIP_CHIP_21140)
sc->sc_filtmode = TDCTL_Tx_FT_HASHONLY;
else
sc->sc_filtmode = TDCTL_Tx_FT_HASH;
sp = TULIP_CDSP(sc);
memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN);
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) {
/*
* We must listen to a range of multicast addresses.
* For now, just accept all multicasts, rather than
* trying to set only those filter bits needed to match
* the range. (At this time, the only use of address
* ranges is for IP multicast routing, for which the
* range is big enough to require all bits set.)
*/
goto allmulti;
}
hash = tlp_mchash(enm->enm_addrlo, hashsize);
sp[hash >> 4] |= htole32(1 << (hash & 0xf));
ETHER_NEXT_MULTI(step, enm);
}
if (ifp->if_flags & IFF_BROADCAST) {
/* ...and the broadcast address. */
hash = tlp_mchash(etherbroadcastaddr, hashsize);
sp[hash >> 4] |= htole32(1 << (hash & 0xf));
}
if (sc->sc_filtmode == TDCTL_Tx_FT_HASHONLY) {
/* ...and our station address. */
hash = tlp_mchash(enaddr, hashsize);
sp[hash >> 4] |= htole32(1 << (hash & 0xf));
} else {
/*
* Hash-Perfect mode; put our station address after
* the hash table.
*/
sp[39] = TULIP_SP_FIELD(enaddr, 0);
sp[40] = TULIP_SP_FIELD(enaddr, 1);
sp[41] = TULIP_SP_FIELD(enaddr, 2);
}
ifp->if_flags &= ~IFF_ALLMULTI;
goto setit;
allmulti:
/*
* Use Perfect filter mode. First address is the broadcast address,
* and pad the rest with our station address. We'll set Pass-all-
* multicast in OPMODE below.
*/
sc->sc_filtmode = TDCTL_Tx_FT_PERFECT;
sp = TULIP_CDSP(sc);
memset(TULIP_CDSP(sc), 0, TULIP_SETUP_PACKET_LEN);
cnt = 0;
if (ifp->if_flags & IFF_BROADCAST) {
cnt++;
*sp++ = TULIP_SP_FIELD_C(0xffff);
*sp++ = TULIP_SP_FIELD_C(0xffff);
*sp++ = TULIP_SP_FIELD_C(0xffff);
}
for (; cnt < TULIP_MAXADDRS; cnt++) {
*sp++ = TULIP_SP_FIELD(enaddr, 0);
*sp++ = TULIP_SP_FIELD(enaddr, 1);
*sp++ = TULIP_SP_FIELD(enaddr, 2);
}
ifp->if_flags |= IFF_ALLMULTI;
setit:
if (ifp->if_flags & IFF_ALLMULTI)
sc->sc_opmode |= OPMODE_PM;
/* Sync the setup packet buffer. */
TULIP_CDSPSYNC(sc, BUS_DMASYNC_PREWRITE);
/*
* Fill in the setup packet descriptor.
*/
txs = SIMPLEQ_FIRST(&sc->sc_txfreeq);
txs->txs_firstdesc = sc->sc_txnext;
txs->txs_lastdesc = sc->sc_txnext;
txs->txs_ndescs = 1;
txs->txs_mbuf = NULL;
sc->sc_txdescs[sc->sc_txnext].td_bufaddr1 =
htole32(TULIP_CDSPADDR(sc));
sc->sc_txdescs[sc->sc_txnext].td_ctl =
htole32((TULIP_SETUP_PACKET_LEN << TDCTL_SIZE1_SHIFT) |
sc->sc_filtmode | TDCTL_Tx_SET | TDCTL_Tx_FS |
TDCTL_Tx_LS | TDCTL_Tx_IC | sc->sc_tdctl_ch |
(sc->sc_txnext == (TULIP_NTXDESC - 1) ? sc->sc_tdctl_er : 0));
sc->sc_txdescs[sc->sc_txnext].td_status = htole32(TDSTAT_OWN);
TULIP_CDTXSYNC(sc, sc->sc_txnext, txs->txs_ndescs,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
/* Advance the tx pointer. */
sc->sc_txfree -= 1;
sc->sc_txnext = TULIP_NEXTTX(sc->sc_txnext);
SIMPLEQ_REMOVE_HEAD(&sc->sc_txfreeq, txs, txs_q);
SIMPLEQ_INSERT_TAIL(&sc->sc_txdirtyq, txs, txs_q);
/*
* Set the OPMODE register. This will also resume the
* transmit transmit process we idled above.
*/
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
sc->sc_flags |= TULIPF_DOING_SETUP;
/*
* Kick the transmitter; this will cause the Tulip to
* read the setup descriptor.
*/
/* XXX USE AUTOPOLLING? */
TULIP_WRITE(sc, CSR_TXPOLL, TXPOLL_TPD);
/* Set up a watchdog timer in case the chip flakes out. */
ifp->if_timer = 5;
DPRINTF(sc, ("%s: tlp_filter_setup: returning\n", sc->sc_dev.dv_xname));
}
/*
* tlp_winb_filter_setup:
*
* Set the Winbond 89C840F's receive filter.
*/
void
tlp_winb_filter_setup(sc)
struct tulip_softc *sc;
{
struct ethercom *ec = &sc->sc_ethercom;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct ether_multi *enm;
struct ether_multistep step;
u_int32_t hash, mchash[2];
DPRINTF(sc, ("%s: tlp_winb_filter_setup: sc_flags 0x%08x\n",
sc->sc_dev.dv_xname, sc->sc_flags));
sc->sc_opmode &= ~(OPMODE_WINB_APP|OPMODE_WINB_AMP|OPMODE_WINB_ABP);
if (ifp->if_flags & IFF_MULTICAST)
sc->sc_opmode |= OPMODE_WINB_AMP;
if (ifp->if_flags & IFF_BROADCAST)
sc->sc_opmode |= OPMODE_WINB_ABP;
if (ifp->if_flags & IFF_PROMISC) {
sc->sc_opmode |= OPMODE_WINB_APP;
goto allmulti;
}
mchash[0] = mchash[1] = 0;
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) {
/*
* We must listen to a range of multicast addresses.
* For now, just accept all multicasts, rather than
* trying to set only those filter bits needed to match
* the range. (At this time, the only use of address
* ranges is for IP multicast routing, for which the
* range is big enough to require all bits set.)
*/
goto allmulti;
}
/*
* According to the FreeBSD `wb' driver, yes, you
* really do invert the hash.
*/
hash = (~(tlp_crc32(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26))
& 0x3f;
mchash[hash >> 5] |= 1 << (hash & 0x1f);
ETHER_NEXT_MULTI(step, enm);
}
ifp->if_flags &= ~IFF_ALLMULTI;
goto setit;
allmulti:
ifp->if_flags |= IFF_ALLMULTI;
mchash[0] = mchash[1] = 0xffffffff;
setit:
TULIP_WRITE(sc, CSR_WINB_CMA0, mchash[0]);
TULIP_WRITE(sc, CSR_WINB_CMA1, mchash[1]);
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
DPRINTF(sc, ("%s: tlp_winb_filter_setup: returning\n",
sc->sc_dev.dv_xname));
}
/*
* tlp_al981_filter_setup:
*
* Set the ADMtek AL981's receive filter.
*/
void
tlp_al981_filter_setup(sc)
struct tulip_softc *sc;
{
struct ethercom *ec = &sc->sc_ethercom;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct ether_multi *enm;
struct ether_multistep step;
u_int32_t hash, mchash[2];
DPRINTF(sc, ("%s: tlp_al981_filter_setup: sc_flags 0x%08x\n",
sc->sc_dev.dv_xname, sc->sc_flags));
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
sc->sc_opmode &= ~(OPMODE_PR|OPMODE_PM);
if (ifp->if_flags & IFF_PROMISC) {
sc->sc_opmode |= OPMODE_PR;
goto allmulti;
}
mchash[0] = mchash[1] = 0;
ETHER_FIRST_MULTI(step, ec, enm);
while (enm != NULL) {
if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) {
/*
* We must listen to a range of multicast addresses.
* For now, just accept all multicasts, rather than
* trying to set only those filter bits needed to match
* the range. (At this time, the only use of address
* ranges is for IP multicast routing, for which the
* range is big enough to require all bits set.)
*/
goto allmulti;
}
hash = (tlp_crc32(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26)
& 0x3f;
mchash[hash >> 5] |= 1 << (hash & 0x1f);
ETHER_NEXT_MULTI(step, enm);
}
ifp->if_flags &= ~IFF_ALLMULTI;
goto setit;
allmulti:
ifp->if_flags |= IFF_ALLMULTI;
mchash[0] = mchash[1] = 0xffffffff;
setit:
TULIP_WRITE(sc, CSR_ADM_MAR0, mchash[0]);
TULIP_WRITE(sc, CSR_ADM_MAR1, mchash[1]);
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
DPRINTF(sc, ("%s: tlp_al981_filter_setup: returning\n",
sc->sc_dev.dv_xname));
}
/*
* tlp_idle:
*
* Cause the transmit and/or receive processes to go idle.
*/
void
tlp_idle(sc, bits)
struct tulip_softc *sc;
u_int32_t bits;
{
static const char *tx_state_names[] = {
"STOPPED",
"RUNNING - FETCH",
"RUNNING - WAIT",
"RUNNING - READING",
"-- RESERVED --",
"RUNNING - SETUP",
"SUSPENDED",
"RUNNING - CLOSE",
};
static const char *rx_state_names[] = {
"STOPPED",
"RUNNING - FETCH",
"RUNNING - CHECK",
"RUNNING - WAIT",
"SUSPENDED",
"RUNNING - CLOSE",
"RUNNING - FLUSH",
"RUNNING - QUEUE",
};
u_int32_t csr, ackmask = 0;
int i;
if (bits & OPMODE_ST)
ackmask |= STATUS_TPS;
if (bits & OPMODE_SR)
ackmask |= STATUS_RPS;
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode & ~bits);
for (i = 0; i < 1000; i++) {
if (TULIP_ISSET(sc, CSR_STATUS, ackmask) == ackmask)
break;
delay(10);
}
csr = TULIP_READ(sc, CSR_STATUS);
if ((csr & ackmask) != ackmask) {
if ((bits & OPMODE_ST) != 0 && (csr & STATUS_TPS) == 0 &&
(csr & STATUS_TS) != STATUS_TS_STOPPED)
printf("%s: transmit process failed to idle: "
"state %s\n", sc->sc_dev.dv_xname,
tx_state_names[(csr & STATUS_TS) >> 20]);
if ((bits & OPMODE_SR) != 0 && (csr & STATUS_RPS) == 0 &&
(csr & STATUS_RS) != STATUS_RS_STOPPED)
printf("%s: receive process failed to idle: "
"state %s\n", sc->sc_dev.dv_xname,
rx_state_names[(csr & STATUS_RS) >> 17]);
}
TULIP_WRITE(sc, CSR_STATUS, ackmask);
}
/*****************************************************************************
* Generic media support functions.
*****************************************************************************/
/*
* tlp_mediastatus: [ifmedia interface function]
*
* Query the current media.
*/
void
tlp_mediastatus(ifp, ifmr)
struct ifnet *ifp;
struct ifmediareq *ifmr;
{
struct tulip_softc *sc = ifp->if_softc;
if (TULIP_IS_ENABLED(sc) == 0) {
ifmr->ifm_active = IFM_ETHER | IFM_NONE;
ifmr->ifm_status = 0;
return;
}
(*sc->sc_mediasw->tmsw_get)(sc, ifmr);
}
/*
* tlp_mediachange: [ifmedia interface function]
*
* Update the current media.
*/
int
tlp_mediachange(ifp)
struct ifnet *ifp;
{
struct tulip_softc *sc = ifp->if_softc;
return ((*sc->sc_mediasw->tmsw_set)(sc));
}
/*****************************************************************************
* Support functions for MII-attached media.
*****************************************************************************/
/*
* tlp_mii_tick:
*
* One second timer, used to tick the MII.
*/
void
tlp_mii_tick(arg)
void *arg;
{
struct tulip_softc *sc = arg;
int s;
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
return;
s = splnet();
mii_tick(&sc->sc_mii);
splx(s);
callout_reset(&sc->sc_tick_callout, hz, sc->sc_tick, sc);
}
/*
* tlp_mii_statchg: [mii interface function]
*
* Callback from PHY when media changes.
*/
void
tlp_mii_statchg(self)
struct device *self;
{
struct tulip_softc *sc = (struct tulip_softc *)self;
/* Idle the transmit and receive processes. */
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
sc->sc_opmode &= ~(OPMODE_TTM|OPMODE_FD|OPMODE_HBD);
if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_10_T)
sc->sc_opmode |= OPMODE_TTM;
else
sc->sc_opmode |= OPMODE_HBD;
if (sc->sc_mii.mii_media_active & IFM_FDX)
sc->sc_opmode |= OPMODE_FD|OPMODE_HBD;
/*
* Write new OPMODE bits. This also restarts the transmit
* and receive processes.
*/
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
}
/*
* tlp_winb_mii_statchg: [mii interface function]
*
* Callback from PHY when media changes. This version is
* for the Winbond 89C840F, which has different OPMODE bits.
*/
void
tlp_winb_mii_statchg(self)
struct device *self;
{
struct tulip_softc *sc = (struct tulip_softc *)self;
/* Idle the transmit and receive processes. */
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
sc->sc_opmode &= ~(OPMODE_WINB_FES|OPMODE_FD);
if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_100_TX)
sc->sc_opmode |= OPMODE_WINB_FES;
if (sc->sc_mii.mii_media_active & IFM_FDX)
sc->sc_opmode |= OPMODE_FD;
/*
* Write new OPMODE bits. This also restarts the transmit
* and receive processes.
*/
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
}
/*
* tlp_mii_getmedia:
*
* Callback from ifmedia to request current media status.
*/
void
tlp_mii_getmedia(sc, ifmr)
struct tulip_softc *sc;
struct ifmediareq *ifmr;
{
mii_pollstat(&sc->sc_mii);
ifmr->ifm_status = sc->sc_mii.mii_media_status;
ifmr->ifm_active = sc->sc_mii.mii_media_active;
}
/*
* tlp_mii_setmedia:
*
* Callback from ifmedia to request new media setting.
*/
int
tlp_mii_setmedia(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
if (ifp->if_flags & IFF_UP) {
switch (sc->sc_chip) {
case TULIP_CHIP_21142:
case TULIP_CHIP_21143:
/* Disable the internal Nway engine. */
TULIP_WRITE(sc, CSR_SIATXRX, 0);
break;
default:
/* Nothing. */
}
mii_mediachg(&sc->sc_mii);
}
return (0);
}
/*
* tlp_bitbang_mii_readreg:
*
* Read a PHY register via bit-bang'ing the MII.
*/
int
tlp_bitbang_mii_readreg(self, phy, reg)
struct device *self;
int phy, reg;
{
struct tulip_softc *sc = (void *) self;
return (mii_bitbang_readreg(self, sc->sc_bitbang_ops, phy, reg));
}
/*
* tlp_bitbang_mii_writereg:
*
* Write a PHY register via bit-bang'ing the MII.
*/
void
tlp_bitbang_mii_writereg(self, phy, reg, val)
struct device *self;
int phy, reg, val;
{
struct tulip_softc *sc = (void *) self;
mii_bitbang_writereg(self, sc->sc_bitbang_ops, phy, reg, val);
}
/*
* tlp_sio_mii_bitbang_read:
*
* Read the MII serial port for the MII bit-bang module.
*/
u_int32_t
tlp_sio_mii_bitbang_read(self)
struct device *self;
{
struct tulip_softc *sc = (void *) self;
return (TULIP_READ(sc, CSR_MIIROM));
}
/*
* tlp_sio_mii_bitbang_write:
*
* Write the MII serial port for the MII bit-bang module.
*/
void
tlp_sio_mii_bitbang_write(self, val)
struct device *self;
u_int32_t val;
{
struct tulip_softc *sc = (void *) self;
TULIP_WRITE(sc, CSR_MIIROM, val);
}
/*
* tlp_pnic_mii_readreg:
*
* Read a PHY register on the Lite-On PNIC.
*/
int
tlp_pnic_mii_readreg(self, phy, reg)
struct device *self;
int phy, reg;
{
struct tulip_softc *sc = (void *) self;
u_int32_t val;
int i;
TULIP_WRITE(sc, CSR_PNIC_MII,
PNIC_MII_MBO | PNIC_MII_RESERVED |
PNIC_MII_READ | (phy << PNIC_MII_PHYSHIFT) |
(reg << PNIC_MII_REGSHIFT));
for (i = 0; i < 1000; i++) {
delay(10);
val = TULIP_READ(sc, CSR_PNIC_MII);
if ((val & PNIC_MII_BUSY) == 0) {
if ((val & PNIC_MII_DATA) == PNIC_MII_DATA)
return (0);
else
return (val & PNIC_MII_DATA);
}
}
printf("%s: MII read timed out\n", sc->sc_dev.dv_xname);
return (0);
}
/*
* tlp_pnic_mii_writereg:
*
* Write a PHY register on the Lite-On PNIC.
*/
void
tlp_pnic_mii_writereg(self, phy, reg, val)
struct device *self;
int phy, reg, val;
{
struct tulip_softc *sc = (void *) self;
int i;
TULIP_WRITE(sc, CSR_PNIC_MII,
PNIC_MII_MBO | PNIC_MII_RESERVED |
PNIC_MII_WRITE | (phy << PNIC_MII_PHYSHIFT) |
(reg << PNIC_MII_REGSHIFT) | val);
for (i = 0; i < 1000; i++) {
delay(10);
if (TULIP_ISSET(sc, CSR_PNIC_MII, PNIC_MII_BUSY) == 0)
return;
}
printf("%s: MII write timed out\n", sc->sc_dev.dv_xname);
}
const bus_addr_t tlp_al981_phy_regmap[] = {
CSR_ADM_BMCR,
CSR_ADM_BMSR,
CSR_ADM_PHYIDR1,
CSR_ADM_PHYIDR2,
CSR_ADM_ANAR,
CSR_ADM_ANLPAR,
CSR_ADM_ANER,
CSR_ADM_XMC,
CSR_ADM_XCIIS,
CSR_ADM_XIE,
CSR_ADM_100CTR,
};
const int tlp_al981_phy_regmap_size = sizeof(tlp_al981_phy_regmap) /
sizeof(tlp_al981_phy_regmap[0]);
/*
* tlp_al981_mii_readreg:
*
* Read a PHY register on the ADMtek AL981.
*/
int
tlp_al981_mii_readreg(self, phy, reg)
struct device *self;
int phy, reg;
{
struct tulip_softc *sc = (struct tulip_softc *)self;
/* AL981 only has an internal PHY. */
if (phy != 0)
return (0);
if (reg >= tlp_al981_phy_regmap_size)
return (0);
return (bus_space_read_4(sc->sc_st, sc->sc_sh,
tlp_al981_phy_regmap[reg]) & 0xffff);
}
/*
* tlp_al981_mii_writereg:
*
* Write a PHY register on the ADMtek AL981.
*/
void
tlp_al981_mii_writereg(self, phy, reg, val)
struct device *self;
int phy, reg, val;
{
struct tulip_softc *sc = (struct tulip_softc *)self;
/* AL981 only has an internal PHY. */
if (phy != 0)
return;
if (reg >= tlp_al981_phy_regmap_size)
return;
bus_space_write_4(sc->sc_st, sc->sc_sh,
tlp_al981_phy_regmap[reg], val);
}
/*****************************************************************************
* Chip-specific pre-init and reset functions.
*****************************************************************************/
/*
* tlp_2114x_preinit:
*
* Pre-init function shared by DECchip 21140, 21140A, 21142, and 21143.
*/
void
tlp_2114x_preinit(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur;
struct tulip_21x4x_media *tm = ife->ifm_aux;
/*
* Whether or not we're in MII or SIA/SYM mode, the media info
* contains the appropriate OPMODE bits.
*
* Note that if we have no media info, we are are doing
* non-MII `auto'.
*
* Also, we always set the Must-Be-One bit.
*/
if (tm == NULL) {
#ifdef DIAGNOSTIC
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
panic("tlp_2114x_preinit: not IFM_AUTO");
if (sc->sc_nway_active == NULL)
panic("tlp_2114x_preinit: nway_active NULL");
#endif
tm = sc->sc_nway_active->ifm_aux;
}
sc->sc_opmode |= OPMODE_MBO | tm->tm_opmode;
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
}
/*
* tlp_2114x_mii_preinit:
*
* Pre-init function shared by DECchip 21140, 21140A, 21142, and 21143.
* This version is used by boards which only have MII and don't have
* an ISV SROM.
*/
void
tlp_2114x_mii_preinit(sc)
struct tulip_softc *sc;
{
/*
* Always set the Must-Be-One bit, and Port Select (to select MII).
* We'll never be called during a media change.
*/
sc->sc_opmode |= OPMODE_MBO|OPMODE_PS;
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
}
/*
* tlp_pnic_preinit:
*
* Pre-init function for the Lite-On 82c168 and 82c169.
*/
void
tlp_pnic_preinit(sc)
struct tulip_softc *sc;
{
if (sc->sc_flags & TULIPF_HAS_MII) {
/*
* MII case: just set the port-select bit; we will never
* be called during a media change.
*/
sc->sc_opmode |= OPMODE_PS;
} else {
/*
* ENDEC/PCS/Nway mode; enable the Tx backoff counter.
*/
sc->sc_opmode |= OPMODE_PNIC_TBEN;
}
}
/*
* tlp_21140_reset:
*
* Issue a reset sequence on the 21140 via the GPIO facility.
*/
void
tlp_21140_reset(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur;
struct tulip_21x4x_media *tm = ife->ifm_aux;
int i;
/* First, set the direction on the GPIO pins. */
TULIP_WRITE(sc, CSR_GPP, GPP_GPC|sc->sc_gp_dir);
/* Now, issue the reset sequence. */
for (i = 0; i < tm->tm_reset_length; i++) {
delay(10);
TULIP_WRITE(sc, CSR_GPP, sc->sc_srom[tm->tm_reset_offset + i]);
}
/* Now, issue the selection sequence. */
for (i = 0; i < tm->tm_gp_length; i++) {
delay(10);
TULIP_WRITE(sc, CSR_GPP, sc->sc_srom[tm->tm_gp_offset + i]);
}
/* If there were no sequences, just lower the pins. */
if (tm->tm_reset_length == 0 && tm->tm_gp_length == 0)
TULIP_WRITE(sc, CSR_GPP, 0);
}
/*
* tlp_21142_reset:
*
* Issue a reset sequence on the 21142 via the GPIO facility.
*/
void
tlp_21142_reset(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur;
struct tulip_21x4x_media *tm = ife->ifm_aux;
const u_int8_t *ncp;
int i;
ncp = &sc->sc_srom[tm->tm_reset_offset];
for (i = 0; i < tm->tm_reset_length; i++, ncp += 2) {
delay(10);
TULIP_WRITE(sc, CSR_SIAGEN,
TULIP_ROM_GETW(ncp, 0) << 16);
}
ncp = &sc->sc_srom[tm->tm_gp_offset];
for (i = 0; i < tm->tm_gp_length; i++, ncp += 2) {
delay(10);
TULIP_WRITE(sc, CSR_SIAGEN,
TULIP_ROM_GETW(ncp, 0) << 16);
}
/* If there were no sequences, just lower the pins. */
if (tm->tm_reset_length == 0 && tm->tm_gp_length == 0) {
delay(10);
TULIP_WRITE(sc, CSR_SIAGEN, 0);
}
}
/*
* tlp_pmac_reset:
*
* Reset routine for Macronix chips.
*/
void
tlp_pmac_reset(sc)
struct tulip_softc *sc;
{
switch (sc->sc_chip) {
case TULIP_CHIP_82C115:
case TULIP_CHIP_MX98715:
case TULIP_CHIP_MX98715A:
case TULIP_CHIP_MX98725:
/*
* Set the LED operating mode. This information is located
* in the EEPROM at byte offset 0x77, per the MX98715A and
* MX98725 application notes.
*/
TULIP_WRITE(sc, CSR_MIIROM, sc->sc_srom[0x77] << 24);
break;
default:
/* Nothing. */
}
}
/*****************************************************************************
* Chip/board-specific media switches. The ones here are ones that
* are potentially common to multiple front-ends.
*****************************************************************************/
/*
* This table is a common place for all sorts of media information,
* keyed off of the SROM media code for that media.
*
* Note that we explicitly configure the 21142/21143 to always advertise
* NWay capabilities when using the UTP port.
* XXX Actually, we don't yet.
*/
const struct tulip_srom_to_ifmedia tulip_srom_to_ifmedia_table[] = {
{ TULIP_ROM_MB_MEDIA_TP, IFM_10_T, 0,
"10baseT",
0,
{ SIACONN_21040_10BASET,
SIATXRX_21040_10BASET,
SIAGEN_21040_10BASET },
{ SIACONN_21041_10BASET,
SIATXRX_21041_10BASET,
SIAGEN_21041_10BASET },
{ SIACONN_21142_10BASET,
SIATXRX_21142_10BASET,
SIAGEN_21142_10BASET } },
{ TULIP_ROM_MB_MEDIA_BNC, IFM_10_2, 0,
"10base2",
0,
{ 0,
0,
0 },
{ SIACONN_21041_BNC,
SIATXRX_21041_BNC,
SIAGEN_21041_BNC },
{ SIACONN_21142_BNC,
SIATXRX_21142_BNC,
SIAGEN_21142_BNC } },
{ TULIP_ROM_MB_MEDIA_AUI, IFM_10_5, 0,
"10base5",
0,
{ SIACONN_21040_AUI,
SIATXRX_21040_AUI,
SIAGEN_21040_AUI },
{ SIACONN_21041_AUI,
SIATXRX_21041_AUI,
SIAGEN_21041_AUI },
{ SIACONN_21142_AUI,
SIATXRX_21142_AUI,
SIAGEN_21142_AUI } },
{ TULIP_ROM_MB_MEDIA_100TX, IFM_100_TX, 0,
"100baseTX",
OPMODE_PS|OPMODE_PCS|OPMODE_SCR|OPMODE_HBD,
{ 0,
0,
0 },
{ 0,
0,
0 },
{ 0,
0,
SIAGEN_ABM } },
{ TULIP_ROM_MB_MEDIA_TP_FDX, IFM_10_T, IFM_FDX,
"10baseT-FDX",
OPMODE_FD|OPMODE_HBD,
{ SIACONN_21040_10BASET_FDX,
SIATXRX_21040_10BASET_FDX,
SIAGEN_21040_10BASET_FDX },
{ SIACONN_21041_10BASET_FDX,
SIATXRX_21041_10BASET_FDX,
SIAGEN_21041_10BASET_FDX },
{ SIACONN_21142_10BASET_FDX,
SIATXRX_21142_10BASET_FDX,
SIAGEN_21142_10BASET_FDX } },
{ TULIP_ROM_MB_MEDIA_100TX_FDX, IFM_100_TX, IFM_FDX,
"100baseTX-FDX",
OPMODE_PS|OPMODE_PCS|OPMODE_SCR|OPMODE_FD|OPMODE_HBD,
{ 0,
0,
0 },
{ 0,
0,
0 },
{ 0,
0,
SIAGEN_ABM } },
{ TULIP_ROM_MB_MEDIA_100T4, IFM_100_T4, 0,
"100baseT4",
OPMODE_PS|OPMODE_PCS|OPMODE_SCR|OPMODE_HBD,
{ 0,
0,
0 },
{ 0,
0,
0 },
{ 0,
0,
SIAGEN_ABM } },
{ TULIP_ROM_MB_MEDIA_100FX, IFM_100_FX, 0,
"100baseFX",
OPMODE_PS|OPMODE_PCS|OPMODE_HBD,
{ 0,
0,
0 },
{ 0,
0,
0 },
{ 0,
0,
SIAGEN_ABM } },
{ TULIP_ROM_MB_MEDIA_100FX_FDX, IFM_100_FX, IFM_FDX,
"100baseFX-FDX",
OPMODE_PS|OPMODE_PCS|OPMODE_FD|OPMODE_HBD,
{ 0,
0,
0 },
{ 0,
0,
0 },
{ 0,
0,
SIAGEN_ABM } },
{ 0, 0, 0,
NULL,
0,
{ 0,
0,
0 },
{ 0,
0,
0 },
{ 0,
0,
0 } },
};
const struct tulip_srom_to_ifmedia *tlp_srom_to_ifmedia __P((u_int8_t));
void tlp_srom_media_info __P((struct tulip_softc *,
const struct tulip_srom_to_ifmedia *, struct tulip_21x4x_media *));
void tlp_add_srom_media __P((struct tulip_softc *, int,
void (*)(struct tulip_softc *, struct ifmediareq *),
int (*)(struct tulip_softc *), const u_int8_t *, int));
void tlp_print_media __P((struct tulip_softc *));
void tlp_nway_activate __P((struct tulip_softc *, int));
void tlp_get_minst __P((struct tulip_softc *));
const struct tulip_srom_to_ifmedia *
tlp_srom_to_ifmedia(sm)
u_int8_t sm;
{
const struct tulip_srom_to_ifmedia *tsti;
for (tsti = tulip_srom_to_ifmedia_table;
tsti->tsti_name != NULL; tsti++) {
if (tsti->tsti_srom == sm)
return (tsti);
}
return (NULL);
}
void
tlp_srom_media_info(sc, tsti, tm)
struct tulip_softc *sc;
const struct tulip_srom_to_ifmedia *tsti;
struct tulip_21x4x_media *tm;
{
tm->tm_name = tsti->tsti_name;
tm->tm_opmode = tsti->tsti_opmode;
switch (sc->sc_chip) {
case TULIP_CHIP_DE425:
case TULIP_CHIP_21040:
tm->tm_sia = tsti->tsti_21040; /* struct assignment */
break;
case TULIP_CHIP_21041:
tm->tm_sia = tsti->tsti_21041; /* struct assignment */
break;
case TULIP_CHIP_21142:
case TULIP_CHIP_21143:
case TULIP_CHIP_82C115:
case TULIP_CHIP_MX98715:
case TULIP_CHIP_MX98715A:
case TULIP_CHIP_MX98725:
tm->tm_sia = tsti->tsti_21142; /* struct assignment */
break;
default:
/* Nothing. */
}
}
void
tlp_add_srom_media(sc, type, get, set, list, cnt)
struct tulip_softc *sc;
int type;
void (*get) __P((struct tulip_softc *, struct ifmediareq *));
int (*set) __P((struct tulip_softc *));
const u_int8_t *list;
int cnt;
{
struct tulip_21x4x_media *tm;
const struct tulip_srom_to_ifmedia *tsti;
int i;
for (i = 0; i < cnt; i++) {
tsti = tlp_srom_to_ifmedia(list[i]);
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tlp_srom_media_info(sc, tsti, tm);
tm->tm_type = type;
tm->tm_get = get;
tm->tm_set = set;
ifmedia_add(&sc->sc_mii.mii_media,
IFM_MAKEWORD(IFM_ETHER, tsti->tsti_subtype,
tsti->tsti_options, sc->sc_tlp_minst), 0, tm);
}
}
void
tlp_print_media(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife;
struct tulip_21x4x_media *tm;
const char *sep = "";
#define PRINT(s) printf("%s%s", sep, s); sep = ", "
printf("%s: ", sc->sc_dev.dv_xname);
for (ife = TAILQ_FIRST(&sc->sc_mii.mii_media.ifm_list);
ife != NULL; ife = TAILQ_NEXT(ife, ifm_list)) {
tm = ife->ifm_aux;
if (tm == NULL) {
#ifdef DIAGNOSTIC
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
panic("tlp_print_media");
#endif
PRINT("auto");
} else if (tm->tm_type != TULIP_ROM_MB_21140_MII &&
tm->tm_type != TULIP_ROM_MB_21142_MII) {
PRINT(tm->tm_name);
}
}
printf("\n");
#undef PRINT
}
void
tlp_nway_activate(sc, media)
struct tulip_softc *sc;
int media;
{
struct ifmedia_entry *ife;
ife = ifmedia_match(&sc->sc_mii.mii_media, media, 0);
#ifdef DIAGNOSTIC
if (ife == NULL)
panic("tlp_nway_activate");
#endif
sc->sc_nway_active = ife;
}
void
tlp_get_minst(sc)
struct tulip_softc *sc;
{
if ((sc->sc_media_seen &
~((1 << TULIP_ROM_MB_21140_MII) |
(1 << TULIP_ROM_MB_21142_MII))) == 0) {
/*
* We have not yet seen any SIA/SYM media (but are
* about to; that's why we're called!), so assign
* the current media instance to be the `internal media'
* instance, and advance it so any MII media gets a
* fresh one (used to selecting/isolating a PHY).
*/
sc->sc_tlp_minst = sc->sc_mii.mii_instance++;
}
}
/*
* SIA Utility functions.
*/
void tlp_sia_update_link __P((struct tulip_softc *));
void tlp_sia_get __P((struct tulip_softc *, struct ifmediareq *));
int tlp_sia_set __P((struct tulip_softc *));
void tlp_sia_fixup __P((struct tulip_softc *));
void
tlp_sia_update_link(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife;
struct tulip_21x4x_media *tm;
u_int32_t siastat;
ife = TULIP_CURRENT_MEDIA(sc);
tm = ife->ifm_aux;
sc->sc_flags &= ~(TULIPF_LINK_UP|TULIPF_LINK_VALID);
siastat = TULIP_READ(sc, CSR_SIASTAT);
/*
* Note that when we do SIA link tests, we are assuming that
* the chip is really in the mode that the current media setting
* reflects. If we're not, then the link tests will not be
* accurate!
*/
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_10_T:
sc->sc_flags |= TULIPF_LINK_VALID;
if ((siastat & SIASTAT_LS10) == 0)
sc->sc_flags |= TULIPF_LINK_UP;
break;
case IFM_100_TX:
case IFM_100_T4:
sc->sc_flags |= TULIPF_LINK_VALID;
if ((siastat & SIASTAT_LS100) == 0)
sc->sc_flags |= TULIPF_LINK_UP;
break;
}
switch (sc->sc_chip) {
case TULIP_CHIP_21142:
case TULIP_CHIP_21143:
/*
* On these chips, we can tell more information about
* AUI/BNC. Note that the AUI/BNC selection is made
* in a different register; for our purpose, it's all
* AUI.
*/
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_10_2:
case IFM_10_5:
sc->sc_flags |= TULIPF_LINK_VALID;
if (siastat & SIASTAT_ARA) {
TULIP_WRITE(sc, CSR_SIASTAT, SIASTAT_ARA);
sc->sc_flags |= TULIPF_LINK_UP;
}
break;
default:
/*
* If we're SYM media and can detect the link
* via the GPIO facility, prefer that status
* over LS100.
*/
if (tm->tm_type == TULIP_ROM_MB_21143_SYM &&
tm->tm_actmask != 0) {
sc->sc_flags = (sc->sc_flags &
~TULIPF_LINK_UP) | TULIPF_LINK_VALID;
if (TULIP_ISSET(sc, CSR_SIAGEN,
tm->tm_actmask) == tm->tm_actdata)
sc->sc_flags |= TULIPF_LINK_UP;
}
}
break;
default:
/* Nothing. */
}
}
void
tlp_sia_get(sc, ifmr)
struct tulip_softc *sc;
struct ifmediareq *ifmr;
{
struct ifmedia_entry *ife;
ifmr->ifm_status = 0;
tlp_sia_update_link(sc);
ife = TULIP_CURRENT_MEDIA(sc);
if (sc->sc_flags & TULIPF_LINK_VALID)
ifmr->ifm_status |= IFM_AVALID;
if (sc->sc_flags & TULIPF_LINK_UP)
ifmr->ifm_status |= IFM_ACTIVE;
ifmr->ifm_active = ife->ifm_media;
}
void
tlp_sia_fixup(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife;
struct tulip_21x4x_media *tm;
u_int32_t siaconn, siatxrx, siagen;
switch (sc->sc_chip) {
case TULIP_CHIP_82C115:
case TULIP_CHIP_MX98713A:
case TULIP_CHIP_MX98715:
case TULIP_CHIP_MX98715A:
case TULIP_CHIP_MX98725:
siaconn = PMAC_SIACONN_MASK;
siatxrx = PMAC_SIATXRX_MASK;
siagen = PMAC_SIAGEN_MASK;
break;
default:
/* No fixups required on any other chips. */
return;
}
for (ife = TAILQ_FIRST(&sc->sc_mii.mii_media.ifm_list);
ife != NULL; ife = TAILQ_NEXT(ife, ifm_list)) {
tm = ife->ifm_aux;
if (tm == NULL)
continue;
tm->tm_siaconn &= siaconn;
tm->tm_siatxrx &= siatxrx;
tm->tm_siagen &= siagen;
}
}
int
tlp_sia_set(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife;
struct tulip_21x4x_media *tm;
ife = TULIP_CURRENT_MEDIA(sc);
tm = ife->ifm_aux;
/*
* XXX This appears to be necessary on a bunch of the clone chips.
*/
delay(20000);
/*
* Idle the chip.
*/
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
/*
* Program the SIA. It's important to write in this order,
* resetting the SIA first.
*/
TULIP_WRITE(sc, CSR_SIACONN, 0); /* SRL bit clear */
delay(1000);
TULIP_WRITE(sc, CSR_SIATXRX, tm->tm_siatxrx);
switch (sc->sc_chip) {
case TULIP_CHIP_21142:
case TULIP_CHIP_21143:
TULIP_WRITE(sc, CSR_SIAGEN, tm->tm_siagen | tm->tm_gpctl);
TULIP_WRITE(sc, CSR_SIAGEN, tm->tm_siagen | tm->tm_gpdata);
break;
default:
TULIP_WRITE(sc, CSR_SIAGEN, tm->tm_siagen);
}
TULIP_WRITE(sc, CSR_SIACONN, tm->tm_siaconn);
/*
* Set the OPMODE bits for this media and write OPMODE.
* This will resume the transmit and receive processes.
*/
sc->sc_opmode = (sc->sc_opmode & ~OPMODE_MEDIA_BITS) | tm->tm_opmode;
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
return (0);
}
/*
* 21140 GPIO utility functions.
*/
void tlp_21140_gpio_update_link __P((struct tulip_softc *));
void tlp_21140_gpio_get __P((struct tulip_softc *sc,
struct ifmediareq *ifmr));
int tlp_21140_gpio_set __P((struct tulip_softc *sc));
void
tlp_21140_gpio_update_link(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife;
struct tulip_21x4x_media *tm;
ife = TULIP_CURRENT_MEDIA(sc);
tm = ife->ifm_aux;
sc->sc_flags &= ~(TULIPF_LINK_UP|TULIPF_LINK_VALID);
if (tm->tm_actmask != 0) {
sc->sc_flags |= TULIPF_LINK_VALID;
if (TULIP_ISSET(sc, CSR_GPP, tm->tm_actmask) ==
tm->tm_actdata)
sc->sc_flags |= TULIPF_LINK_UP;
}
}
void
tlp_21140_gpio_get(sc, ifmr)
struct tulip_softc *sc;
struct ifmediareq *ifmr;
{
struct ifmedia_entry *ife;
ifmr->ifm_status = 0;
tlp_21140_gpio_update_link(sc);
ife = TULIP_CURRENT_MEDIA(sc);
if (sc->sc_flags & TULIPF_LINK_VALID)
ifmr->ifm_status |= IFM_AVALID;
if (sc->sc_flags & TULIPF_LINK_UP)
ifmr->ifm_status |= IFM_ACTIVE;
ifmr->ifm_active = ife->ifm_media;
}
int
tlp_21140_gpio_set(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife;
struct tulip_21x4x_media *tm;
ife = TULIP_CURRENT_MEDIA(sc);
tm = ife->ifm_aux;
/*
* Idle the chip.
*/
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
/*
* Set the GPIO pins for this media, to flip any
* relays, etc.
*/
TULIP_WRITE(sc, CSR_GPP, GPP_GPC|sc->sc_gp_dir);
delay(10);
TULIP_WRITE(sc, CSR_GPP, tm->tm_gpdata);
/*
* Set the OPMODE bits for this media and write OPMODE.
* This will resume the transmit and receive processes.
*/
sc->sc_opmode = (sc->sc_opmode & ~OPMODE_MEDIA_BITS) | tm->tm_opmode;
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
return (0);
}
/*
* 21040 and 21041 media switches.
*/
void tlp_21040_tmsw_init __P((struct tulip_softc *));
void tlp_21040_tp_tmsw_init __P((struct tulip_softc *));
void tlp_21040_auibnc_tmsw_init __P((struct tulip_softc *));
void tlp_21041_tmsw_init __P((struct tulip_softc *));
const struct tulip_mediasw tlp_21040_mediasw = {
tlp_21040_tmsw_init, tlp_sia_get, tlp_sia_set
};
const struct tulip_mediasw tlp_21040_tp_mediasw = {
tlp_21040_tp_tmsw_init, tlp_sia_get, tlp_sia_set
};
const struct tulip_mediasw tlp_21040_auibnc_mediasw = {
tlp_21040_auibnc_tmsw_init, tlp_sia_get, tlp_sia_set
};
const struct tulip_mediasw tlp_21041_mediasw = {
tlp_21041_tmsw_init, tlp_sia_get, tlp_sia_set
};
void
tlp_21040_tmsw_init(sc)
struct tulip_softc *sc;
{
static const u_int8_t media[] = {
TULIP_ROM_MB_MEDIA_TP,
TULIP_ROM_MB_MEDIA_TP_FDX,
TULIP_ROM_MB_MEDIA_AUI,
};
struct tulip_21x4x_media *tm;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
tlp_add_srom_media(sc, 0, NULL, NULL, media, 3);
/*
* No SROM type for External SIA.
*/
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tm->tm_name = "manual";
tm->tm_opmode = 0;
tm->tm_siaconn = SIACONN_21040_EXTSIA;
tm->tm_siatxrx = SIATXRX_21040_EXTSIA;
tm->tm_siagen = SIAGEN_21040_EXTSIA;
ifmedia_add(&sc->sc_mii.mii_media,
IFM_MAKEWORD(IFM_ETHER, IFM_MANUAL, 0, sc->sc_tlp_minst), 0, tm);
/*
* XXX Autosense not yet supported.
*/
/* XXX This should be auto-sense. */
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T);
tlp_print_media(sc);
}
void
tlp_21040_tp_tmsw_init(sc)
struct tulip_softc *sc;
{
static const u_int8_t media[] = {
TULIP_ROM_MB_MEDIA_TP,
TULIP_ROM_MB_MEDIA_TP_FDX,
};
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
tlp_add_srom_media(sc, 0, NULL, NULL, media, 2);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T);
tlp_print_media(sc);
}
void
tlp_21040_auibnc_tmsw_init(sc)
struct tulip_softc *sc;
{
static const u_int8_t media[] = {
TULIP_ROM_MB_MEDIA_AUI,
};
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
tlp_add_srom_media(sc, 0, NULL, NULL, media, 1);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_5);
tlp_print_media(sc);
}
void
tlp_21041_tmsw_init(sc)
struct tulip_softc *sc;
{
static const u_int8_t media[] = {
TULIP_ROM_MB_MEDIA_TP,
TULIP_ROM_MB_MEDIA_TP_FDX,
TULIP_ROM_MB_MEDIA_BNC,
TULIP_ROM_MB_MEDIA_AUI,
};
int i, defmedia, devcnt, leaf_offset, mb_offset, m_cnt;
const struct tulip_srom_to_ifmedia *tsti;
struct tulip_21x4x_media *tm;
u_int16_t romdef;
u_int8_t mb;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
if (tlp_isv_srom(sc->sc_srom) == 0) {
not_isv_srom:
/*
* If we have a board without the standard 21041 SROM format,
* we just assume all media are present and try and pick a
* reasonable default.
*/
tlp_add_srom_media(sc, 0, NULL, NULL, media, 4);
/*
* XXX Autosense not yet supported.
*/
/* XXX This should be auto-sense. */
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T);
tlp_print_media(sc);
return;
}
devcnt = sc->sc_srom[TULIP_ROM_CHIP_COUNT];
for (i = 0; i < devcnt; i++) {
if (sc->sc_srom[TULIP_ROM_CHIP_COUNT] == 1)
break;
if (sc->sc_srom[TULIP_ROM_CHIPn_DEVICE_NUMBER(i)] ==
sc->sc_devno)
break;
}
if (i == devcnt)
goto not_isv_srom;
leaf_offset = TULIP_ROM_GETW(sc->sc_srom,
TULIP_ROM_CHIPn_INFO_LEAF_OFFSET(i));
mb_offset = leaf_offset + TULIP_ROM_IL_MEDIAn_BLOCK_BASE;
m_cnt = sc->sc_srom[leaf_offset + TULIP_ROM_IL_MEDIA_COUNT];
for (; m_cnt != 0;
m_cnt--, mb_offset += TULIP_ROM_MB_SIZE(mb)) {
mb = sc->sc_srom[mb_offset];
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
switch (mb & TULIP_ROM_MB_MEDIA_CODE) {
case TULIP_ROM_MB_MEDIA_TP_FDX:
case TULIP_ROM_MB_MEDIA_TP:
case TULIP_ROM_MB_MEDIA_BNC:
case TULIP_ROM_MB_MEDIA_AUI:
tsti = tlp_srom_to_ifmedia(mb &
TULIP_ROM_MB_MEDIA_CODE);
tlp_srom_media_info(sc, tsti, tm);
/*
* Override our default SIA settings if the
* SROM contains its own.
*/
if (mb & TULIP_ROM_MB_EXT) {
tm->tm_siaconn = TULIP_ROM_GETW(sc->sc_srom,
mb_offset + TULIP_ROM_MB_CSR13);
tm->tm_siatxrx = TULIP_ROM_GETW(sc->sc_srom,
mb_offset + TULIP_ROM_MB_CSR14);
tm->tm_siagen = TULIP_ROM_GETW(sc->sc_srom,
mb_offset + TULIP_ROM_MB_CSR15);
}
ifmedia_add(&sc->sc_mii.mii_media,
IFM_MAKEWORD(IFM_ETHER, tsti->tsti_subtype,
tsti->tsti_options, sc->sc_tlp_minst), 0, tm);
break;
default:
printf("%s: unknown media code 0x%02x\n",
sc->sc_dev.dv_xname,
mb & TULIP_ROM_MB_MEDIA_CODE);
free(tm, M_DEVBUF);
}
}
/*
* XXX Autosense not yet supported.
*/
romdef = TULIP_ROM_GETW(sc->sc_srom, leaf_offset +
TULIP_ROM_IL_SELECT_CONN_TYPE);
switch (romdef) {
case SELECT_CONN_TYPE_TP:
case SELECT_CONN_TYPE_TP_AUTONEG:
case SELECT_CONN_TYPE_TP_NOLINKPASS:
defmedia = IFM_ETHER|IFM_10_T;
break;
case SELECT_CONN_TYPE_TP_FDX:
defmedia = IFM_ETHER|IFM_10_T|IFM_FDX;
break;
case SELECT_CONN_TYPE_BNC:
defmedia = IFM_ETHER|IFM_10_2;
break;
case SELECT_CONN_TYPE_AUI:
defmedia = IFM_ETHER|IFM_10_5;
break;
#if 0 /* XXX */
case SELECT_CONN_TYPE_ASENSE:
case SELECT_CONN_TYPE_ASENSE_AUTONEG:
defmedia = IFM_ETHER|IFM_AUTO;
break;
#endif
default:
defmedia = 0;
}
if (defmedia == 0) {
/*
* XXX We should default to auto-sense.
*/
defmedia = IFM_ETHER|IFM_10_T;
}
ifmedia_set(&sc->sc_mii.mii_media, defmedia);
tlp_print_media(sc);
}
/*
* DECchip 2114x ISV media switch.
*/
void tlp_2114x_isv_tmsw_init __P((struct tulip_softc *));
void tlp_2114x_isv_tmsw_get __P((struct tulip_softc *, struct ifmediareq *));
int tlp_2114x_isv_tmsw_set __P((struct tulip_softc *));
const struct tulip_mediasw tlp_2114x_isv_mediasw = {
tlp_2114x_isv_tmsw_init, tlp_2114x_isv_tmsw_get, tlp_2114x_isv_tmsw_set
};
void
tlp_2114x_isv_tmsw_init(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct ifmedia_entry *ife;
struct mii_softc *phy;
struct tulip_21x4x_media *tm;
const struct tulip_srom_to_ifmedia *tsti;
int i, devcnt, leaf_offset, m_cnt, type, length;
int defmedia, miidef;
u_int16_t word;
u_int8_t *cp, *ncp;
defmedia = miidef = 0;
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = tlp_bitbang_mii_readreg;
sc->sc_mii.mii_writereg = tlp_bitbang_mii_writereg;
sc->sc_mii.mii_statchg = sc->sc_statchg;
/*
* Ignore `instance'; we may get a mixture of SIA and MII
* media, and `instance' is used to isolate or select the
* PHY on the MII as appropriate. Note that duplicate media
* are disallowed, so ignoring `instance' is safe.
*/
ifmedia_init(&sc->sc_mii.mii_media, IFM_IMASK, tlp_mediachange,
tlp_mediastatus);
devcnt = sc->sc_srom[TULIP_ROM_CHIP_COUNT];
for (i = 0; i < devcnt; i++) {
if (sc->sc_srom[TULIP_ROM_CHIP_COUNT] == 1)
break;
if (sc->sc_srom[TULIP_ROM_CHIPn_DEVICE_NUMBER(i)] ==
sc->sc_devno)
break;
}
if (i == devcnt) {
printf("%s: unable to locate info leaf in SROM\n",
sc->sc_dev.dv_xname);
return;
}
leaf_offset = TULIP_ROM_GETW(sc->sc_srom,
TULIP_ROM_CHIPn_INFO_LEAF_OFFSET(i));
/* XXX SELECT CONN TYPE */
cp = &sc->sc_srom[leaf_offset + TULIP_ROM_IL_MEDIA_COUNT];
/*
* On some chips, the first thing in the Info Leaf is the
* GPIO pin direction data.
*/
switch (sc->sc_chip) {
case TULIP_CHIP_21140:
case TULIP_CHIP_21140A:
case TULIP_CHIP_MX98713:
case TULIP_CHIP_AX88140:
case TULIP_CHIP_AX88141:
sc->sc_gp_dir = *cp++;
break;
default:
/* Nothing. */
}
/* Get the media count. */
m_cnt = *cp++;
for (; m_cnt != 0; cp = ncp, m_cnt--) {
/*
* Determine the type and length of this media block.
*/
if ((*cp & 0x80) == 0) {
length = 4;
type = TULIP_ROM_MB_21140_GPR;
} else {
length = (*cp++ & 0x7f) - 1;
type = *cp++ & 0x3f;
}
/* Compute the start of the next block. */
ncp = cp + length;
/* Now, parse the block. */
switch (type) {
case TULIP_ROM_MB_21140_GPR:
tlp_get_minst(sc);
sc->sc_media_seen |= 1 << TULIP_ROM_MB_21140_GPR;
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tm->tm_type = TULIP_ROM_MB_21140_GPR;
tm->tm_get = tlp_21140_gpio_get;
tm->tm_set = tlp_21140_gpio_set;
/* First is the media type code. */
tsti = tlp_srom_to_ifmedia(cp[0] &
TULIP_ROM_MB_MEDIA_CODE);
if (tsti == NULL) {
/* Invalid media code. */
free(tm, M_DEVBUF);
break;
}
/* Get defaults. */
tlp_srom_media_info(sc, tsti, tm);
/* Next is any GPIO info for this media. */
tm->tm_gpdata = cp[1];
/*
* Next is a word containing OPMODE information
* and info on how to detect if this media is
* active.
*/
word = TULIP_ROM_GETW(cp, 2);
tm->tm_opmode = TULIP_ROM_MB_OPMODE(word);
if ((word & TULIP_ROM_MB_NOINDICATOR) == 0) {
tm->tm_actmask =
TULIP_ROM_MB_BITPOS(word);
tm->tm_actdata =
(word & TULIP_ROM_MB_POLARITY) ?
0 : tm->tm_actmask;
}
ifmedia_add(&sc->sc_mii.mii_media,
IFM_MAKEWORD(IFM_ETHER, tsti->tsti_subtype,
tsti->tsti_options, sc->sc_tlp_minst), 0, tm);
break;
case TULIP_ROM_MB_21140_MII:
sc->sc_media_seen |= 1 << TULIP_ROM_MB_21140_MII;
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tm->tm_type = TULIP_ROM_MB_21140_MII;
tm->tm_get = tlp_mii_getmedia;
tm->tm_set = tlp_mii_setmedia;
tm->tm_opmode = OPMODE_PS;
if (sc->sc_reset == NULL)
sc->sc_reset = tlp_21140_reset;
/* First is the PHY number. */
tm->tm_phyno = *cp++;
/* Next is the MII select sequence length and offset. */
tm->tm_gp_length = *cp++;
tm->tm_gp_offset = cp - &sc->sc_srom[0];
cp += tm->tm_gp_length;
/* Next is the MII reset sequence length and offset. */
tm->tm_reset_length = *cp++;
tm->tm_reset_offset = cp - &sc->sc_srom[0];
cp += tm->tm_reset_length;
/*
* The following items are left in the media block
* that we don't particularly care about:
*
* capabilities W
* advertisement W
* full duplex W
* tx threshold W
*
* These appear to be bits in the PHY registers,
* which our MII code handles on its own.
*/
/*
* Before we probe the MII bus, we need to reset
* it and issue the selection sequence.
*/
/* Set the direction of the pins... */
TULIP_WRITE(sc, CSR_GPP, GPP_GPC|sc->sc_gp_dir);
for (i = 0; i < tm->tm_reset_length; i++) {
delay(10);
TULIP_WRITE(sc, CSR_GPP,
sc->sc_srom[tm->tm_reset_offset + i]);
}
for (i = 0; i < tm->tm_gp_length; i++) {
delay(10);
TULIP_WRITE(sc, CSR_GPP,
sc->sc_srom[tm->tm_gp_offset + i]);
}
/* If there were no sequences, just lower the pins. */
if (tm->tm_reset_length == 0 && tm->tm_gp_length == 0) {
delay(10);
TULIP_WRITE(sc, CSR_GPP, 0);
}
/*
* Now, probe the MII for the PHY. Note, we know
* the location of the PHY on the bus, but we don't
* particularly care; the MII code just likes to
* search the whole thing anyhow.
*/
mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff,
MII_PHY_ANY, tm->tm_phyno, 0);
/*
* Now, search for the PHY we hopefully just
* configured. If it's not configured into the
* kernel, we lose. The PHY's default media always
* takes priority.
*/
for (phy = LIST_FIRST(&sc->sc_mii.mii_phys);
phy != NULL;
phy = LIST_NEXT(phy, mii_list))
if (phy->mii_offset == tm->tm_phyno)
break;
if (phy == NULL) {
printf("%s: unable to configure MII\n",
sc->sc_dev.dv_xname);
break;
}
sc->sc_flags |= TULIPF_HAS_MII;
sc->sc_tick = tlp_mii_tick;
miidef = IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0,
phy->mii_inst);
/*
* Okay, now that we've found the PHY and the MII
* layer has added all of the media associated
* with that PHY, we need to traverse the media
* list, and add our `tm' to each entry's `aux'
* pointer.
*
* We do this by looking for media with our
* PHY's `instance'.
*/
for (ife = TAILQ_FIRST(&sc->sc_mii.mii_media.ifm_list);
ife != NULL;
ife = TAILQ_NEXT(ife, ifm_list)) {
if (IFM_INST(ife->ifm_media) != phy->mii_inst)
continue;
ife->ifm_aux = tm;
}
break;
case TULIP_ROM_MB_21142_SIA:
tlp_get_minst(sc);
sc->sc_media_seen |= 1 << TULIP_ROM_MB_21142_SIA;
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tm->tm_type = TULIP_ROM_MB_21142_SIA;
tm->tm_get = tlp_sia_get;
tm->tm_set = tlp_sia_set;
/* First is the media type code. */
tsti = tlp_srom_to_ifmedia(cp[0] &
TULIP_ROM_MB_MEDIA_CODE);
if (tsti == NULL) {
/* Invalid media code. */
free(tm, M_DEVBUF);
break;
}
/* Get defaults. */
tlp_srom_media_info(sc, tsti, tm);
/*
* Override our default SIA settings if the
* SROM contains its own.
*/
if (cp[0] & 0x40) {
tm->tm_siaconn = TULIP_ROM_GETW(cp, 1);
tm->tm_siatxrx = TULIP_ROM_GETW(cp, 3);
tm->tm_siagen = TULIP_ROM_GETW(cp, 5);
cp += 7;
} else
cp++;
/* Next is GPIO control/data. */
tm->tm_gpctl = TULIP_ROM_GETW(cp, 0);
tm->tm_gpdata = TULIP_ROM_GETW(cp, 2);
ifmedia_add(&sc->sc_mii.mii_media,
IFM_MAKEWORD(IFM_ETHER, tsti->tsti_subtype,
tsti->tsti_options, sc->sc_tlp_minst), 0, tm);
break;
case TULIP_ROM_MB_21142_MII:
sc->sc_media_seen |= 1 << TULIP_ROM_MB_21142_MII;
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tm->tm_type = TULIP_ROM_MB_21142_MII;
tm->tm_get = tlp_mii_getmedia;
tm->tm_set = tlp_mii_setmedia;
tm->tm_opmode = OPMODE_PS;
if (sc->sc_reset == NULL)
sc->sc_reset = tlp_21142_reset;
/* First is the PHY number. */
tm->tm_phyno = *cp++;
/* Next is the MII select sequence length and offset. */
tm->tm_gp_length = *cp++;
tm->tm_gp_offset = cp - &sc->sc_srom[0];
cp += tm->tm_gp_length * 2;
/* Next is the MII reset sequence length and offset. */
tm->tm_reset_length = *cp++;
tm->tm_reset_offset = cp - &sc->sc_srom[0];
cp += tm->tm_reset_length * 2;
/*
* The following items are left in the media block
* that we don't particularly care about:
*
* capabilities W
* advertisement W
* full duplex W
* tx threshold W
* MII interrupt W
*
* These appear to be bits in the PHY registers,
* which our MII code handles on its own.
*/
/*
* Before we probe the MII bus, we need to reset
* it and issue the selection sequence.
*/
ncp = &sc->sc_srom[tm->tm_reset_offset];
for (i = 0; i < tm->tm_reset_length; i++, ncp += 2) {
delay(10);
TULIP_WRITE(sc, CSR_SIAGEN,
TULIP_ROM_GETW(ncp, 0) << 16);
}
ncp = &sc->sc_srom[tm->tm_gp_offset];
for (i = 0; i < tm->tm_gp_length; i++, ncp += 2) {
delay(10);
TULIP_WRITE(sc, CSR_SIAGEN,
TULIP_ROM_GETW(ncp, 0) << 16);
}
/* If there were no sequences, just lower the pins. */
if (tm->tm_reset_length == 0 && tm->tm_gp_length == 0) {
delay(10);
TULIP_WRITE(sc, CSR_SIAGEN, 0);
}
/*
* Now, probe the MII for the PHY. Note, we know
* the location of the PHY on the bus, but we don't
* particularly care; the MII code just likes to
* search the whole thing anyhow.
*/
mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff,
MII_PHY_ANY, tm->tm_phyno, 0);
/*
* Now, search for the PHY we hopefully just
* configured. If it's not configured into the
* kernel, we lose. The PHY's default media always
* takes priority.
*/
for (phy = LIST_FIRST(&sc->sc_mii.mii_phys);
phy != NULL;
phy = LIST_NEXT(phy, mii_list))
if (phy->mii_offset == tm->tm_phyno)
break;
if (phy == NULL) {
printf("%s: unable to configure MII\n",
sc->sc_dev.dv_xname);
break;
}
sc->sc_flags |= TULIPF_HAS_MII;
sc->sc_tick = tlp_mii_tick;
miidef = IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0,
phy->mii_inst);
/*
* Okay, now that we've found the PHY and the MII
* layer has added all of the media associated
* with that PHY, we need to traverse the media
* list, and add our `tm' to each entry's `aux'
* pointer.
*
* We do this by looking for media with our
* PHY's `instance'.
*/
for (ife = TAILQ_FIRST(&sc->sc_mii.mii_media.ifm_list);
ife != NULL;
ife = TAILQ_NEXT(ife, ifm_list)) {
if (IFM_INST(ife->ifm_media) != phy->mii_inst)
continue;
ife->ifm_aux = tm;
}
break;
case TULIP_ROM_MB_21143_SYM:
tlp_get_minst(sc);
sc->sc_media_seen |= 1 << TULIP_ROM_MB_21143_SYM;
tm = malloc(sizeof(*tm), M_DEVBUF, M_WAITOK);
memset(tm, 0, sizeof(*tm));
tm->tm_type = TULIP_ROM_MB_21143_SYM;
tm->tm_get = tlp_sia_get;
tm->tm_set = tlp_sia_set;
/* First is the media type code. */
tsti = tlp_srom_to_ifmedia(cp[0] &
TULIP_ROM_MB_MEDIA_CODE);
if (tsti == NULL) {
/* Invalid media code. */
free(tm, M_DEVBUF);
break;
}
/* Get defaults. */
tlp_srom_media_info(sc, tsti, tm);
/* Next is GPIO control/data. */
tm->tm_gpctl = TULIP_ROM_GETW(cp, 1);
tm->tm_gpdata = TULIP_ROM_GETW(cp, 3);
/*
* Next is a word containing OPMODE information
* and info on how to detect if this media is
* active.
*/
word = TULIP_ROM_GETW(cp, 5);
tm->tm_opmode = TULIP_ROM_MB_OPMODE(word);
if ((word & TULIP_ROM_MB_NOINDICATOR) == 0) {
tm->tm_actmask =
TULIP_ROM_MB_BITPOS(word);
tm->tm_actdata =
(word & TULIP_ROM_MB_POLARITY) ?
0 : tm->tm_actmask;
}
ifmedia_add(&sc->sc_mii.mii_media,
IFM_MAKEWORD(IFM_ETHER, tsti->tsti_subtype,
tsti->tsti_options, sc->sc_tlp_minst), 0, tm);
break;
case TULIP_ROM_MB_21143_RESET:
printf("%s: 21143 reset block\n", sc->sc_dev.dv_xname);
break;
default:
printf("%s: unknown ISV media block type 0x%02x\n",
sc->sc_dev.dv_xname, type);
}
}
/*
* Deal with the case where no media is configured.
*/
if (TAILQ_FIRST(&sc->sc_mii.mii_media.ifm_list) == NULL) {
printf("%s: no media found!\n", sc->sc_dev.dv_xname);
ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
return;
}
/*
* Pick the default media.
*/
if (miidef != 0)
defmedia = miidef;
else {
/*
* XXX Pick a better default. Should come from SROM
* XXX on 21140[A], and should be "auto" on 21142,
* XXX 21143, and Macronix chips.
*/
defmedia = IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0);
}
ifmedia_set(&sc->sc_mii.mii_media, defmedia);
/*
* Display any non-MII media we've located.
*/
if (sc->sc_media_seen &
~((1 << TULIP_ROM_MB_21140_MII) | (1 << TULIP_ROM_MB_21142_MII)))
tlp_print_media(sc);
tlp_sia_fixup(sc);
}
void
tlp_2114x_isv_tmsw_get(sc, ifmr)
struct tulip_softc *sc;
struct ifmediareq *ifmr;
{
struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur;
struct tulip_21x4x_media *tm = ife->ifm_aux;
/*
* We might be polling a non-MII autosense; check for that.
*/
if (tm == NULL) {
#ifdef DIAGNOSTIC
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
panic("tlp_2114x_isv_tmsw_get");
#endif
tm = sc->sc_nway_active->ifm_aux;
}
(*tm->tm_get)(sc, ifmr);
}
int
tlp_2114x_isv_tmsw_set(sc)
struct tulip_softc *sc;
{
struct ifmedia_entry *ife = sc->sc_mii.mii_media.ifm_cur;
struct tulip_21x4x_media *tm = ife->ifm_aux;
/*
* We might be setting a non-MII autosense; check for that.
*/
if (tm == NULL) {
#ifdef DIAGNOSTIC
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
panic("tlp_2114x_isv_tmsw_set");
#endif
/* XXX XXX XXX */
}
/*
* Check to see if we need to reset the chip, and do it. The
* reset path will get the OPMODE register right the next
* time through.
*/
if (TULIP_MEDIA_NEEDSRESET(sc, tm->tm_opmode))
return (tlp_init(sc));
return ((*tm->tm_set)(sc));
}
/*
* MII-on-SIO media switch. Handles only MII attached to the SIO.
*/
void tlp_sio_mii_tmsw_init __P((struct tulip_softc *));
const struct tulip_mediasw tlp_sio_mii_mediasw = {
tlp_sio_mii_tmsw_init, tlp_mii_getmedia, tlp_mii_setmedia
};
void
tlp_sio_mii_tmsw_init(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
/*
* We don't attach any media info structures to the ifmedia
* entries, so if we're using a pre-init function that needs
* that info, override it to one that doesn't.
*/
if (sc->sc_preinit == tlp_2114x_preinit)
sc->sc_preinit = tlp_2114x_mii_preinit;
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = tlp_bitbang_mii_readreg;
sc->sc_mii.mii_writereg = tlp_bitbang_mii_writereg;
sc->sc_mii.mii_statchg = sc->sc_statchg;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
MII_OFFSET_ANY, 0);
if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
} else {
sc->sc_flags |= TULIPF_HAS_MII;
sc->sc_tick = tlp_mii_tick;
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
}
}
/*
* Lite-On PNIC media switch. Must handle MII or internal NWAY.
*/
void tlp_pnic_tmsw_init __P((struct tulip_softc *));
void tlp_pnic_tmsw_get __P((struct tulip_softc *, struct ifmediareq *));
int tlp_pnic_tmsw_set __P((struct tulip_softc *));
const struct tulip_mediasw tlp_pnic_mediasw = {
tlp_pnic_tmsw_init, tlp_pnic_tmsw_get, tlp_pnic_tmsw_set
};
void tlp_pnic_nway_statchg __P((struct device *));
void tlp_pnic_nway_tick __P((void *));
int tlp_pnic_nway_service __P((struct tulip_softc *, int));
void tlp_pnic_nway_reset __P((struct tulip_softc *));
int tlp_pnic_nway_auto __P((struct tulip_softc *, int));
void tlp_pnic_nway_auto_timeout __P((void *));
void tlp_pnic_nway_status __P((struct tulip_softc *));
void tlp_pnic_nway_acomp __P((struct tulip_softc *));
void
tlp_pnic_tmsw_init(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
const char *sep = "";
#define ADD(m, c) ifmedia_add(&sc->sc_mii.mii_media, (m), (c), NULL)
#define PRINT(s) printf("%s%s", sep, s); sep = ", "
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = tlp_pnic_mii_readreg;
sc->sc_mii.mii_writereg = tlp_pnic_mii_writereg;
sc->sc_mii.mii_statchg = sc->sc_statchg;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
MII_OFFSET_ANY, 0);
if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
/* XXX What about AUI/BNC support? */
printf("%s: ", sc->sc_dev.dv_xname);
tlp_pnic_nway_reset(sc);
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0),
PNIC_NWAY_TW|PNIC_NWAY_CAP10T);
PRINT("10baseT");
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, 0),
PNIC_NWAY_TW|PNIC_NWAY_FD|PNIC_NWAY_CAP10TFDX);
PRINT("10baseT-FDX");
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, 0),
PNIC_NWAY_TW|PNIC_NWAY_100|PNIC_NWAY_CAP100TX);
PRINT("100baseTX");
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, 0),
PNIC_NWAY_TW|PNIC_NWAY_100|PNIC_NWAY_FD|
PNIC_NWAY_CAP100TXFDX);
PRINT("100baseTX-FDX");
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0),
PNIC_NWAY_TW|PNIC_NWAY_RN|PNIC_NWAY_NW|
PNIC_NWAY_CAP10T|PNIC_NWAY_CAP10TFDX|
PNIC_NWAY_CAP100TXFDX|PNIC_NWAY_CAP100TX);
PRINT("auto");
printf("\n");
sc->sc_statchg = tlp_pnic_nway_statchg;
sc->sc_tick = tlp_pnic_nway_tick;
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
} else {
sc->sc_flags |= TULIPF_HAS_MII;
sc->sc_tick = tlp_mii_tick;
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
}
#undef ADD
#undef PRINT
}
void
tlp_pnic_tmsw_get(sc, ifmr)
struct tulip_softc *sc;
struct ifmediareq *ifmr;
{
struct mii_data *mii = &sc->sc_mii;
if (sc->sc_flags & TULIPF_HAS_MII)
tlp_mii_getmedia(sc, ifmr);
else {
mii->mii_media_status = 0;
mii->mii_media_active = IFM_NONE;
tlp_pnic_nway_service(sc, MII_POLLSTAT);
ifmr->ifm_status = sc->sc_mii.mii_media_status;
ifmr->ifm_active = sc->sc_mii.mii_media_active;
}
}
int
tlp_pnic_tmsw_set(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
struct mii_data *mii = &sc->sc_mii;
if (sc->sc_flags & TULIPF_HAS_MII) {
/*
* Make sure the built-in Tx jabber timer is disabled.
*/
TULIP_WRITE(sc, CSR_PNIC_ENDEC, PNIC_ENDEC_JDIS);
return (tlp_mii_setmedia(sc));
}
if (ifp->if_flags & IFF_UP) {
mii->mii_media_status = 0;
mii->mii_media_active = IFM_NONE;
return (tlp_pnic_nway_service(sc, MII_MEDIACHG));
}
return (0);
}
void
tlp_pnic_nway_statchg(self)
struct device *self;
{
struct tulip_softc *sc = (struct tulip_softc *)self;
/* Idle the transmit and receive processes. */
tlp_idle(sc, OPMODE_ST|OPMODE_SR);
sc->sc_opmode &= ~(OPMODE_TTM|OPMODE_FD|OPMODE_PS|OPMODE_PCS|
OPMODE_SCR|OPMODE_HBD);
if (IFM_SUBTYPE(sc->sc_mii.mii_media_active) == IFM_10_T) {
sc->sc_opmode |= OPMODE_TTM;
TULIP_WRITE(sc, CSR_GPP,
GPP_PNIC_OUT(GPP_PNIC_PIN_SPEED_RLY, 0) |
GPP_PNIC_OUT(GPP_PNIC_PIN_100M_LPKB, 1));
} else {
sc->sc_opmode |= OPMODE_PS|OPMODE_PCS|OPMODE_SCR|OPMODE_HBD;
TULIP_WRITE(sc, CSR_GPP,
GPP_PNIC_OUT(GPP_PNIC_PIN_SPEED_RLY, 1) |
GPP_PNIC_OUT(GPP_PNIC_PIN_100M_LPKB, 1));
}
if (sc->sc_mii.mii_media_active & IFM_FDX)
sc->sc_opmode |= OPMODE_FD|OPMODE_HBD;
/*
* Write new OPMODE bits. This also restarts the transmit
* and receive processes.
*/
TULIP_WRITE(sc, CSR_OPMODE, sc->sc_opmode);
}
void
tlp_pnic_nway_tick(arg)
void *arg;
{
struct tulip_softc *sc = arg;
int s;
if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0)
return;
s = splnet();
tlp_pnic_nway_service(sc, MII_TICK);
splx(s);
callout_reset(&sc->sc_tick_callout, hz, tlp_pnic_nway_tick, sc);
}
/*
* Support for the Lite-On PNIC internal NWay block. This is constructed
* somewhat like a PHY driver for simplicity.
*/
int
tlp_pnic_nway_service(sc, cmd)
struct tulip_softc *sc;
int cmd;
{
struct mii_data *mii = &sc->sc_mii;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
return (0);
switch (cmd) {
case MII_POLLSTAT:
/* Nothing special to do here. */
break;
case MII_MEDIACHG:
switch (IFM_SUBTYPE(ife->ifm_media)) {
case IFM_AUTO:
(void) tlp_pnic_nway_auto(sc, 1);
break;
case IFM_100_T4:
/*
* XXX Not supported as a manual setting right now.
*/
return (EINVAL);
default:
/*
* NWAY register data is stored in the ifmedia entry.
*/
TULIP_WRITE(sc, CSR_PNIC_NWAY, ife->ifm_data);
}
break;
case MII_TICK:
/*
* Only used for autonegotiation.
*/
if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
return (0);
/*
* Check to see if we have link. If we do, we don't
* need to restart the autonegotiation process.
*/
if (sc->sc_flags & TULIPF_LINK_UP)
return (0);
/*
* Only retry autonegotiation every 5 seconds.
*/
if (++sc->sc_nway_ticks != 5)
return (0);
sc->sc_nway_ticks = 0;
tlp_pnic_nway_reset(sc);
if (tlp_pnic_nway_auto(sc, 0) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
tlp_pnic_nway_status(sc);
/* Callback if something changed. */
if ((sc->sc_nway_active == NULL ||
sc->sc_nway_active->ifm_media != mii->mii_media_active) ||
cmd == MII_MEDIACHG) {
(*sc->sc_statchg)(&sc->sc_dev);
tlp_nway_activate(sc, mii->mii_media_active);
}
return (0);
}
void
tlp_pnic_nway_reset(sc)
struct tulip_softc *sc;
{
TULIP_WRITE(sc, CSR_PNIC_NWAY, PNIC_NWAY_RS);
delay(100);
TULIP_WRITE(sc, CSR_PNIC_NWAY, 0);
}
int
tlp_pnic_nway_auto(sc, waitfor)
struct tulip_softc *sc;
int waitfor;
{
struct mii_data *mii = &sc->sc_mii;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
u_int32_t reg;
int i;
if ((sc->sc_flags & TULIPF_DOINGAUTO) == 0)
TULIP_WRITE(sc, CSR_PNIC_NWAY, ife->ifm_data);
if (waitfor) {
/* Wait 500ms for it to complete. */
for (i = 0; i < 500; i++) {
reg = TULIP_READ(sc, CSR_PNIC_NWAY);
if (reg & PNIC_NWAY_LPAR_MASK) {
tlp_pnic_nway_acomp(sc);
return (0);
}
delay(1000);
}
#if 0
if ((reg & PNIC_NWAY_LPAR_MASK) == 0)
printf("%s: autonegotiation failed to complete\n",
sc->sc_dev.dv_xname);
#endif
/*
* Don't need to worry about clearing DOINGAUTO.
* If that's set, a timeout is pending, and it will
* clear the flag.
*/
return (EIO);
}
/*
* Just let it finish asynchronously. This is for the benefit of
* the tick handler driving autonegotiation. Don't want 500ms
* delays all the time while the system is running!
*/
if ((sc->sc_flags & TULIPF_DOINGAUTO) == 0) {
sc->sc_flags |= TULIPF_DOINGAUTO;
callout_reset(&sc->sc_nway_callout, hz >> 1,
tlp_pnic_nway_auto_timeout, sc);
}
return (EJUSTRETURN);
}
void
tlp_pnic_nway_auto_timeout(arg)
void *arg;
{
struct tulip_softc *sc = arg;
u_int32_t reg;
int s;
s = splnet();
sc->sc_flags &= ~TULIPF_DOINGAUTO;
reg = TULIP_READ(sc, CSR_PNIC_NWAY);
#if 0
if ((reg & PNIC_NWAY_LPAR_MASK) == 0)
printf("%s: autonegotiation failed to complete\n",
sc->sc_dev.dv_xname);
#endif
tlp_pnic_nway_acomp(sc);
/* Update the media status. */
(void) tlp_pnic_nway_service(sc, MII_POLLSTAT);
splx(s);
}
void
tlp_pnic_nway_status(sc)
struct tulip_softc *sc;
{
struct mii_data *mii = &sc->sc_mii;
u_int32_t reg;
mii->mii_media_status = IFM_AVALID;
mii->mii_media_active = IFM_ETHER;
reg = TULIP_READ(sc, CSR_PNIC_NWAY);
if (sc->sc_flags & TULIPF_LINK_UP)
mii->mii_media_status |= IFM_ACTIVE;
if (reg & PNIC_NWAY_NW) {
if ((reg & PNIC_NWAY_LPAR_MASK) == 0) {
/* Erg, still trying, I guess... */
mii->mii_media_active |= IFM_NONE;
return;
}
#if 0
if (reg & PNIC_NWAY_LPAR100T4)
mii->mii_media_active |= IFM_100_T4;
else
#endif
if (reg & PNIC_NWAY_LPAR100TXFDX)
mii->mii_media_active |= IFM_100_TX|IFM_FDX;
else if (reg & PNIC_NWAY_LPAR100TX)
mii->mii_media_active |= IFM_100_TX;
else if (reg & PNIC_NWAY_LPAR10TFDX)
mii->mii_media_active |= IFM_10_T|IFM_FDX;
else if (reg & PNIC_NWAY_LPAR10T)
mii->mii_media_active |= IFM_10_T;
else
mii->mii_media_active |= IFM_NONE;
} else {
if (reg & PNIC_NWAY_100)
mii->mii_media_active |= IFM_100_TX;
else
mii->mii_media_active |= IFM_10_T;
if (reg & PNIC_NWAY_FD)
mii->mii_media_active |= IFM_FDX;
}
}
void
tlp_pnic_nway_acomp(sc)
struct tulip_softc *sc;
{
u_int32_t reg;
reg = TULIP_READ(sc, CSR_PNIC_NWAY);
reg &= ~(PNIC_NWAY_FD|PNIC_NWAY_100|PNIC_NWAY_RN);
if (reg & (PNIC_NWAY_LPAR100TXFDX|PNIC_NWAY_LPAR100TX))
reg |= PNIC_NWAY_100;
if (reg & (PNIC_NWAY_LPAR10TFDX|PNIC_NWAY_LPAR100TXFDX))
reg |= PNIC_NWAY_FD;
TULIP_WRITE(sc, CSR_PNIC_NWAY, reg);
}
/*
* Macronix PMAC and Lite-On PNIC-II media switch:
*
* MX98713 and MX98713A 21140-like MII or GPIO media.
*
* MX98713A 21143-like MII or SIA/SYM media.
*
* MX98715, MX98715A, MX98725, 21143-like SIA/SYM media.
* 82C115
*
* So, what we do here is fake MII-on-SIO or ISV media info, and
* use the ISV media switch get/set functions to handle the rest.
*/
void tlp_pmac_tmsw_init __P((struct tulip_softc *));
const struct tulip_mediasw tlp_pmac_mediasw = {
tlp_pmac_tmsw_init, tlp_2114x_isv_tmsw_get, tlp_2114x_isv_tmsw_set
};
const struct tulip_mediasw tlp_pmac_mii_mediasw = {
tlp_pmac_tmsw_init, tlp_mii_getmedia, tlp_mii_setmedia
};
void
tlp_pmac_tmsw_init(sc)
struct tulip_softc *sc;
{
static const u_int8_t media[] = {
TULIP_ROM_MB_MEDIA_TP,
TULIP_ROM_MB_MEDIA_TP_FDX,
TULIP_ROM_MB_MEDIA_100TX,
TULIP_ROM_MB_MEDIA_100TX_FDX,
};
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = tlp_bitbang_mii_readreg;
sc->sc_mii.mii_writereg = tlp_bitbang_mii_writereg;
sc->sc_mii.mii_statchg = sc->sc_statchg;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
if (sc->sc_chip == TULIP_CHIP_MX98713 ||
sc->sc_chip == TULIP_CHIP_MX98713A) {
mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff,
MII_PHY_ANY, MII_OFFSET_ANY, 0);
if (LIST_FIRST(&sc->sc_mii.mii_phys) != NULL) {
sc->sc_flags |= TULIPF_HAS_MII;
sc->sc_tick = tlp_mii_tick;
sc->sc_preinit = tlp_2114x_mii_preinit;
sc->sc_mediasw = &tlp_pmac_mii_mediasw;
ifmedia_set(&sc->sc_mii.mii_media,
IFM_ETHER|IFM_AUTO);
return;
}
}
switch (sc->sc_chip) {
case TULIP_CHIP_MX98713:
tlp_add_srom_media(sc, TULIP_ROM_MB_21140_GPR,
tlp_21140_gpio_get, tlp_21140_gpio_set, media, 4);
/*
* XXX Should implement auto-sense for this someday,
* XXX when we do the same for the 21140.
*/
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T);
break;
default:
tlp_add_srom_media(sc, TULIP_ROM_MB_21142_SIA,
tlp_sia_get, tlp_sia_set, media, 2);
tlp_add_srom_media(sc, TULIP_ROM_MB_21143_SYM,
tlp_sia_get, tlp_sia_set, media + 2, 2);
/*
* XXX Autonegotiation not yet supported.
*/
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_10_T);
break;
}
tlp_print_media(sc);
tlp_sia_fixup(sc);
/* Set the LED modes. */
tlp_pmac_reset(sc);
sc->sc_reset = tlp_pmac_reset;
}
/*
* ADMtek AL981 media switch. Only has internal PHY.
*/
void tlp_al981_tmsw_init __P((struct tulip_softc *));
const struct tulip_mediasw tlp_al981_mediasw = {
tlp_al981_tmsw_init, tlp_mii_getmedia, tlp_mii_setmedia
};
void
tlp_al981_tmsw_init(sc)
struct tulip_softc *sc;
{
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
sc->sc_mii.mii_ifp = ifp;
sc->sc_mii.mii_readreg = tlp_al981_mii_readreg;
sc->sc_mii.mii_writereg = tlp_al981_mii_writereg;
sc->sc_mii.mii_statchg = sc->sc_statchg;
ifmedia_init(&sc->sc_mii.mii_media, 0, tlp_mediachange,
tlp_mediastatus);
mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
MII_OFFSET_ANY, 0);
if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
} else {
sc->sc_flags |= TULIPF_HAS_MII;
sc->sc_tick = tlp_mii_tick;
ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
}
}
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