Sync the MI LANCE code ( le(4) ) with NetBSD, except for the following:

- the am7990_get() - now lance_get() - is unchanged.
- the interrupt acknowledge logic is unchanged, and will disable interrupts,
  then acknowledge all interrupt conditions.

Add ILACC (79900) support (from NetBSD).

Both LANCE (am7990.c) and ILACC (am79900.c) code share as much common code
(lance.c) as possible. This affects all le(4) attachments, but the changes
are mostly mechanical, to split am7990-specific parts from lance-agnostic
parts.

Compile tested on all affected platforms. Tested on alpha, hp300, luna88k,
mvme88k, sparc, sparc64 and vax.

1 files changed, 611 insertions, 0 deletions

diff --git a/sys/dev/ic/am79900.c b/sys/dev/ic/am79900.c
new file mode 100644
index 00000000000..5541f187cda
--- /dev/null
+++ b/sys/dev/ic/am79900.c
@@ -0,0 +1,611 @@
+/*	$OpenBSD: am79900.c,v 1.1 2013/09/24 20:10:55 miod Exp $	*/
+/*	$NetBSD: am79900.c,v 1.23 2012/02/02 19:43:02 tls Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell and Rick Macklem.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)if_le.c	8.2 (Berkeley) 11/16/93
+ */
+
+/*-
+ * Copyright (c) 1998
+ *	Matthias Drochner.  All rights reserved.
+ * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell and Rick Macklem.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)if_le.c	8.2 (Berkeley) 11/16/93
+ */
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/syslog.h>
+#include <sys/socket.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/ioctl.h>
+#include <sys/errno.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#endif
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+
+#include <dev/ic/lancereg.h>
+#include <dev/ic/lancevar.h>
+#include <dev/ic/am79900reg.h>
+#include <dev/ic/am79900var.h>
+
+void	am79900_meminit(struct lance_softc *);
+void	am79900_start(struct ifnet *);
+
+void	am79900_rint(struct lance_softc *);
+void	am79900_tint(struct lance_softc *);
+
+#ifdef LEDEBUG
+void	am79900_recv_print(struct lance_softc *, int);
+void	am79900_xmit_print(struct lance_softc *, int);
+#endif
+
+void
+am79900_config(struct am79900_softc *sc)
+{
+	int mem, i;
+
+	sc->lsc.sc_meminit = am79900_meminit;
+	sc->lsc.sc_start = am79900_start;
+
+	lance_config(&sc->lsc);
+
+	mem = 0;
+	sc->lsc.sc_initaddr = mem;
+	mem += sizeof(struct leinit);
+	sc->lsc.sc_rmdaddr = mem;
+	mem += sizeof(struct lermd) * sc->lsc.sc_nrbuf;
+	sc->lsc.sc_tmdaddr = mem;
+	mem += sizeof(struct letmd) * sc->lsc.sc_ntbuf;
+	for (i = 0; i < sc->lsc.sc_nrbuf; i++, mem += LEBLEN)
+		sc->lsc.sc_rbufaddr[i] = mem;
+	for (i = 0; i < sc->lsc.sc_ntbuf; i++, mem += LEBLEN)
+		sc->lsc.sc_tbufaddr[i] = mem;
+
+	if (mem > sc->lsc.sc_memsize)
+		panic("%s: memsize", sc->lsc.sc_dev.dv_xname);
+}
+
+/*
+ * Set up the initialization block and the descriptor rings.
+ */
+void
+am79900_meminit(struct lance_softc *sc)
+{
+	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
+	u_long a;
+	int bix;
+	struct leinit init;
+	struct lermd rmd;
+	struct letmd tmd;
+	uint8_t *myaddr;
+
+	if (ifp->if_flags & IFF_PROMISC)
+		init.init_mode = LE_MODE_NORMAL | LE_MODE_PROM;
+	else
+		init.init_mode = LE_MODE_NORMAL;
+	if (sc->sc_initmodemedia == 1)
+		init.init_mode |= LE_MODE_PSEL0;
+
+	init.init_mode |= ((ffs(sc->sc_ntbuf) - 1) << 28) |
+	    ((ffs(sc->sc_nrbuf) - 1) << 20);
+
+	/*
+	 * Update our private copy of the Ethernet address.
+	 * We NEED the copy so we can ensure its alignment!
+	 */
+	memcpy(sc->sc_enaddr, sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN);
+	myaddr = sc->sc_enaddr;
+
+	init.init_padr[0] = myaddr[0] | (myaddr[1] << 8) |
+	    (myaddr[2] << 16) | (myaddr[3] << 24);
+	init.init_padr[1] = myaddr[4] | (myaddr[5] << 8);
+	lance_setladrf(&sc->sc_arpcom, init.init_ladrf);
+
+	sc->sc_last_rd = 0;
+	sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0;
+
+	a = sc->sc_addr + LE_RMDADDR(sc, 0);
+	init.init_rdra = a;
+
+	a = sc->sc_addr + LE_TMDADDR(sc, 0);
+	init.init_tdra = a;
+
+	(*sc->sc_copytodesc)(sc, &init, LE_INITADDR(sc), sizeof(init));
+
+	/*
+	 * Set up receive ring descriptors.
+	 */
+	for (bix = 0; bix < sc->sc_nrbuf; bix++) {
+		a = sc->sc_addr + LE_RBUFADDR(sc, bix);
+		rmd.rmd0 = a;
+		rmd.rmd1 = LE_R1_OWN | LE_R1_ONES | (-LEBLEN & 0xfff);
+		rmd.rmd2 = 0;
+		rmd.rmd3 = 0;
+		(*sc->sc_copytodesc)(sc, &rmd, LE_RMDADDR(sc, bix),
+		    sizeof(rmd));
+	}
+
+	/*
+	 * Set up transmit ring descriptors.
+	 */
+	for (bix = 0; bix < sc->sc_ntbuf; bix++) {
+		a = sc->sc_addr + LE_TBUFADDR(sc, bix);
+		tmd.tmd0 = a;
+		tmd.tmd1 = LE_T1_ONES;
+		tmd.tmd2 = 0;
+		tmd.tmd3 = 0;
+		(*sc->sc_copytodesc)(sc, &tmd, LE_TMDADDR(sc, bix),
+		    sizeof(tmd));
+	}
+}
+
+void
+am79900_rint(struct lance_softc *sc)
+{
+	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
+	int bix;
+	int rp;
+	struct lermd rmd;
+
+	bix = sc->sc_last_rd;
+
+	/* Process all buffers with valid data. */
+	for (;;) {
+		rp = LE_RMDADDR(sc, bix);
+		(*sc->sc_copyfromdesc)(sc, &rmd, rp, sizeof(rmd));
+
+		if (rmd.rmd1 & LE_R1_OWN)
+			break;
+
+		if (rmd.rmd1 & LE_R1_ERR) {
+			if (rmd.rmd1 & LE_R1_ENP) {
+#ifdef LEDEBUG
+				if ((rmd.rmd1 & LE_R1_OFLO) == 0) {
+					if (rmd.rmd1 & LE_R1_FRAM)
+						printf("%s: framing error\n",
+						    sc->sc_dev.dv_xname);
+					if (rmd.rmd1 & LE_R1_CRC)
+						printf("%s: crc mismatch\n",
+						    sc->sc_dev.dv_xname);
+				}
+#endif
+			} else {
+				if (rmd.rmd1 & LE_R1_OFLO)
+					printf("%s: overflow\n",
+					    sc->sc_dev.dv_xname);
+			}
+			if (rmd.rmd1 & LE_R1_BUFF)
+				printf("%s: receive buffer error\n",
+				    sc->sc_dev.dv_xname);
+			ifp->if_ierrors++;
+		} else if ((rmd.rmd1 & (LE_R1_STP | LE_R1_ENP)) !=
+		    (LE_R1_STP | LE_R1_ENP)) {
+			printf("%s: dropping chained buffer\n",
+			    sc->sc_dev.dv_xname);
+			ifp->if_ierrors++;
+		} else {
+#ifdef LEDEBUG
+			if (sc->sc_debug > 1)
+				am79900_recv_print(sc, sc->sc_last_rd);
+#endif
+			lance_read(sc, LE_RBUFADDR(sc, bix),
+			    (rmd.rmd2  & 0xfff) - 4);
+		}
+
+		rmd.rmd1 = LE_R1_OWN | LE_R1_ONES | (-LEBLEN & 0xfff);
+		rmd.rmd2 = 0;
+		rmd.rmd3 = 0;
+		(*sc->sc_copytodesc)(sc, &rmd, rp, sizeof(rmd));
+
+#ifdef LEDEBUG
+		if (sc->sc_debug)
+			printf("sc->sc_last_rd = %x, rmd: "
+			       "adr %08x, flags/blen %08x\n",
+				sc->sc_last_rd,
+				rmd.rmd0, rmd.rmd1);
+#endif
+
+		if (++bix == sc->sc_nrbuf)
+			bix = 0;
+	}
+
+	sc->sc_last_rd = bix;
+}
+
+void
+am79900_tint(struct lance_softc *sc)
+{
+	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
+	int bix;
+	struct letmd tmd;
+
+	bix = sc->sc_first_td;
+
+	for (;;) {
+		if (sc->sc_no_td <= 0)
+			break;
+
+		(*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, bix),
+		    sizeof(tmd));
+
+#ifdef LEDEBUG
+		if (sc->sc_debug)
+			printf("trans tmd: "
+			    "adr %08x, flags/blen %08x\n",
+			    tmd.tmd0, tmd.tmd1);
+#endif
+
+		if (tmd.tmd1 & LE_T1_OWN)
+			break;
+
+		ifp->if_flags &= ~IFF_OACTIVE;
+
+		if (tmd.tmd1 & LE_T1_ERR) {
+			if (tmd.tmd2 & LE_T2_BUFF)
+				printf("%s: transmit buffer error\n",
+				    sc->sc_dev.dv_xname);
+			else if (tmd.tmd2 & LE_T2_UFLO)
+				printf("%s: underflow\n", sc->sc_dev.dv_xname);
+			if (tmd.tmd2 & (LE_T2_BUFF | LE_T2_UFLO)) {
+				lance_reset(sc);
+				return;
+			}
+			if (tmd.tmd2 & LE_T2_LCAR) {
+				sc->sc_havecarrier = 0;
+				if (sc->sc_nocarrier)
+					(*sc->sc_nocarrier)(sc);
+				else
+					printf("%s: lost carrier\n",
+					    sc->sc_dev.dv_xname);
+			}
+			if (tmd.tmd2 & LE_T2_LCOL)
+				ifp->if_collisions++;
+			if (tmd.tmd2 & LE_T2_RTRY) {
+#ifdef LEDEBUG
+				printf("%s: excessive collisions\n",
+				    sc->sc_dev.dv_xname);
+#endif
+				ifp->if_collisions += 16;
+			}
+			ifp->if_oerrors++;
+		} else {
+			if (tmd.tmd1 & LE_T1_ONE)
+				ifp->if_collisions++;
+			else if (tmd.tmd1 & LE_T1_MORE)
+				/* Real number is unknown. */
+				ifp->if_collisions += 2;
+			ifp->if_opackets++;
+		}
+
+		if (++bix == sc->sc_ntbuf)
+			bix = 0;
+
+		--sc->sc_no_td;
+	}
+
+	sc->sc_first_td = bix;
+
+	am79900_start(ifp);
+
+	if (sc->sc_no_td == 0)
+		ifp->if_timer = 0;
+}
+
+/*
+ * Controller interrupt.
+ */
+int
+am79900_intr(void *arg)
+{
+	struct lance_softc *sc = arg;
+	struct ifnet *ifp = &sc->sc_arpcom.ac_if;
+	uint16_t isr;
+
+	isr = (*sc->sc_rdcsr)(sc, LE_CSR0) | sc->sc_saved_csr0;
+	sc->sc_saved_csr0 = 0;
+#if defined(LEDEBUG) && LEDEBUG > 1
+	if (sc->sc_debug)
+		printf("%s: am79900_intr entering with isr=%04x\n",
+		    sc->sc_dev.dv_xname, isr);
+#endif
+	if ((isr & LE_C0_INTR) == 0)
+		return (0);
+
+	(*sc->sc_wrcsr)(sc, LE_CSR0,
+	    isr & (LE_C0_INEA | LE_C0_BABL | LE_C0_MISS | LE_C0_MERR |
+		   LE_C0_RINT | LE_C0_TINT | LE_C0_IDON));
+	if (isr & LE_C0_ERR) {
+		if (isr & LE_C0_BABL) {
+#ifdef LEDEBUG
+			printf("%s: babble\n", sc->sc_dev.dv_xname);
+#endif
+			ifp->if_oerrors++;
+		}
+#if 0
+		if (isr & LE_C0_CERR) {
+			printf("%s: collision error\n",
+			    sc->sc_dev.dv_xname);
+			ifp->if_collisions++;
+		}
+#endif
+		if (isr & LE_C0_MISS) {
+#ifdef LEDEBUG
+			printf("%s: missed packet\n", sc->sc_dev.dv_xname);
+#endif
+			ifp->if_ierrors++;
+		}
+		if (isr & LE_C0_MERR) {
+			printf("%s: memory error\n", sc->sc_dev.dv_xname);
+			lance_reset(sc);
+			return (1);
+		}
+	}
+
+	if ((isr & LE_C0_RXON) == 0) {
+		printf("%s: receiver disabled\n", sc->sc_dev.dv_xname);
+		ifp->if_ierrors++;
+		lance_reset(sc);
+		return (1);
+	}
+	if ((isr & LE_C0_TXON) == 0) {
+		printf("%s: transmitter disabled\n", sc->sc_dev.dv_xname);
+		ifp->if_oerrors++;
+		lance_reset(sc);
+		return (1);
+	}
+
+	/*
+	 * Pretend we have carrier; if we don't this will be cleared
+	 * shortly.
+	 */
+	sc->sc_havecarrier = 1;
+
+	if (isr & LE_C0_RINT)
+		am79900_rint(sc);
+	if (isr & LE_C0_TINT)
+		am79900_tint(sc);
+
+	return (1);
+}
+
+/*
+ * Setup output on interface.
+ * Get another datagram to send off of the interface queue, and map it to the
+ * interface before starting the output.
+ * Called only at splnet or interrupt level.
+ */
+void
+am79900_start(struct ifnet *ifp)
+{
+	struct lance_softc *sc = ifp->if_softc;
+	int bix;
+	struct mbuf *m;
+	struct letmd tmd;
+	int rp;
+	int len;
+
+	if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
+		return;
+
+	bix = sc->sc_last_td;
+
+	for (;;) {
+		rp = LE_TMDADDR(sc, bix);
+		(*sc->sc_copyfromdesc)(sc, &tmd, rp, sizeof(tmd));
+
+		if (tmd.tmd1 & LE_T1_OWN) {
+			ifp->if_flags |= IFF_OACTIVE;
+			printf("missing buffer, no_td = %d, last_td = %d\n",
+			    sc->sc_no_td, sc->sc_last_td);
+		}
+
+		IFQ_DEQUEUE(&ifp->if_snd, m);
+		if (m == 0)
+			break;
+
+#if NBPFILTER > 0
+		/*
+		 * If BPF is listening on this interface, let it see the packet
+		 * before we commit it to the wire.
+		 */
+		if (ifp->if_bpf)
+			bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT);
+#endif
+
+		/*
+		 * Copy the mbuf chain into the transmit buffer.
+		 */
+		len = lance_put(sc, LE_TBUFADDR(sc, bix), m);
+
+#ifdef LEDEBUG
+		if (len > ETHERMTU + sizeof(struct ether_header))
+			printf("packet length %d\n", len);
+#endif
+
+		ifp->if_timer = 5;
+
+		/*
+		 * Init transmit registers, and set transmit start flag.
+		 */
+		tmd.tmd1 = LE_T1_OWN | LE_T1_STP | LE_T1_ENP | LE_T1_ONES |
+		    (-len & 0xfff);
+		tmd.tmd2 = 0;
+		tmd.tmd3 = 0;
+
+		(*sc->sc_copytodesc)(sc, &tmd, rp, sizeof(tmd));
+
+#ifdef LEDEBUG
+		if (sc->sc_debug > 1)
+			am79900_xmit_print(sc, sc->sc_last_td);
+#endif
+
+		(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_TDMD);
+
+		if (++bix == sc->sc_ntbuf)
+			bix = 0;
+
+		if (++sc->sc_no_td == sc->sc_ntbuf) {
+			ifp->if_flags |= IFF_OACTIVE;
+			break;
+		}
+
+	}
+
+	sc->sc_last_td = bix;
+}
+
+#ifdef LEDEBUG
+void
+am79900_recv_print(struct lance_softc *sc, int no)
+{
+	struct lermd rmd;
+	uint16_t len;
+	struct ether_header eh;
+
+	(*sc->sc_copyfromdesc)(sc, &rmd, LE_RMDADDR(sc, no), sizeof(rmd));
+	len = (rmd.rmd2  & 0xfff) - 4;
+	printf("%s: receive buffer %d, len = %d\n",
+	    sc->sc_dev.dv_xname, no, len);
+	printf("%s: status %04x\n", sc->sc_dev.dv_xname,
+	    (*sc->sc_rdcsr)(sc, LE_CSR0));
+	printf("%s: adr %08x, flags/blen %08x\n",
+	    sc->sc_dev.dv_xname, rmd.rmd0, rmd.rmd1);
+	if (len >= sizeof(eh)) {
+		(*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh));
+		printf("%s: dst %s", sc->sc_dev.dv_xname,
+			ether_sprintf(eh.ether_dhost));
+		printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost),
+			ntohs(eh.ether_type));
+	}
+}
+
+void
+am79900_xmit_print(struct lance_softc *sc, int no)
+{
+	struct letmd tmd;
+	uint16_t len;
+	struct ether_header eh;
+
+	(*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, no), sizeof(tmd));
+	len = -(tmd.tmd1 & 0xfff);
+	printf("%s: transmit buffer %d, len = %d\n",
+	    sc->sc_dev.dv_xname, no, len);
+	printf("%s: status %04x\n", sc->sc_dev.dv_xname,
+	    (*sc->sc_rdcsr)(sc, LE_CSR0));
+	printf("%s: adr %08x, flags/blen %08x\n",
+	    sc->sc_dev.dv_xname, tmd.tmd0, tmd.tmd1);
+	if (len >= sizeof(eh)) {
+		(*sc->sc_copyfrombuf)(sc, &eh, LE_TBUFADDR(sc, no), sizeof(eh));
+		printf("%s: dst %s", sc->sc_dev.dv_xname,
+			ether_sprintf(eh.ether_dhost));
+		printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost),
+		    ntohs(eh.ether_type));
+	}
+}
+#endif /* LEDEBUG */