Split wi(4) into bus-dependent and bus-independent bits similar to

an(4) -- no real code changes at this point.
Rename if_wavelan_ieee.h to if_wi_ieee.h while I'm at it and
create an if_wivar.h similar to NetBSD.
PCI adaptors exist that are not true PCMCIA controllers so
wi(4) @ PCI is possible (though the code is not working yet ;-).

1 files changed, 1442 insertions, 0 deletions

diff --git a/sys/dev/ic/if_wi.c b/sys/dev/ic/if_wi.c
new file mode 100644
index 00000000000..5f71bda0099
--- /dev/null
+++ b/sys/dev/ic/if_wi.c
@@ -0,0 +1,1442 @@
+/*	$OpenBSD: if_wi.c,v 1.1 2001/05/15 02:40:35 millert Exp $	*/
+
+/*
+ * Copyright (c) 1997, 1998, 1999
+ *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
+ *
+ * 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 Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
+ * 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.
+ *
+ *	From: if_wi.c,v 1.7 1999/07/04 14:40:22 wpaul Exp $
+ */
+
+/*
+ * Lucent WaveLAN/IEEE 802.11 driver for OpenBSD.
+ *
+ * Originally written by Bill Paul <wpaul@ctr.columbia.edu>
+ * Electrical Engineering Department
+ * Columbia University, New York City
+ */
+
+/*
+ * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
+ * from Lucent. Unlike the older cards, the new ones are programmed
+ * entirely via a firmware-driven controller called the Hermes.
+ * Unfortunately, Lucent will not release the Hermes programming manual
+ * without an NDA (if at all). What they do release is an API library
+ * called the HCF (Hardware Control Functions) which is supposed to
+ * do the device-specific operations of a device driver for you. The
+ * publically available version of the HCF library (the 'HCF Light') is
+ * a) extremely gross, b) lacks certain features, particularly support
+ * for 802.11 frames, and c) is contaminated by the GNU Public License.
+ *
+ * This driver does not use the HCF or HCF Light at all. Instead, it
+ * programs the Hermes controller directly, using information gleaned
+ * from the HCF Light code and corresponding documentation.
+ */
+
+#define WI_HERMES_AUTOINC_WAR	/* Work around data write autoinc bug. */
+#define WI_HERMES_STATS_WAR	/* Work around stats counter bug. */
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sockio.h>
+#include <sys/mbuf.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/socket.h>
+#include <sys/device.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/ip.h>
+#include <netinet/if_ether.h>
+#endif
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+
+#include <machine/bus.h>
+
+#include <dev/ic/if_wireg.h>
+#include <dev/ic/if_wi_ieee.h>
+#include <dev/ic/if_wivar.h>
+
+#define BPF_MTAP(if,mbuf) bpf_mtap((if)->if_bpf, (mbuf))
+#define BPFATTACH(if_bpf,if,dlt,sz)
+#define STATIC
+
+#ifdef WIDEBUG
+
+u_int32_t	widebug = WIDEBUG;
+
+#define WID_INTR	0x01
+#define WID_START	0x02
+#define WID_IOCTL	0x04
+#define WID_INIT	0x08
+#define WID_STOP	0x10
+#define WID_RESET	0x20
+
+#define DPRINTF(mask,args) if (widebug & (mask)) printf args;
+
+#else	/* !WIDEBUG */
+#define DPRINTF(mask,args)
+#endif	/* WIDEBUG */
+
+#if !defined(lint) && !defined(__OpenBSD__)
+static const char rcsid[] =
+	"$OpenBSD: if_wi.c,v 1.1 2001/05/15 02:40:35 millert Exp $";
+#endif	/* lint */
+
+#ifdef foo
+static u_int8_t	wi_mcast_addr[6] = { 0x01, 0x60, 0x1D, 0x00, 0x01, 0x00 };
+#endif
+
+STATIC void wi_reset		__P((struct wi_softc *));
+STATIC int wi_ioctl		__P((struct ifnet *, u_long, caddr_t));
+STATIC void wi_start		__P((struct ifnet *));
+STATIC void wi_watchdog		__P((struct ifnet *));
+STATIC void wi_shutdown		__P((void *));
+STATIC void wi_rxeof		__P((struct wi_softc *));
+STATIC void wi_txeof		__P((struct wi_softc *, int));
+STATIC void wi_update_stats	__P((struct wi_softc *));
+STATIC void wi_setmulti		__P((struct wi_softc *));
+
+STATIC int wi_cmd		__P((struct wi_softc *, int, int));
+STATIC int wi_read_record	__P((struct wi_softc *, struct wi_ltv_gen *));
+STATIC int wi_write_record	__P((struct wi_softc *, struct wi_ltv_gen *));
+STATIC int wi_read_data		__P((struct wi_softc *, int,
+					int, caddr_t, int));
+STATIC int wi_write_data	__P((struct wi_softc *, int,
+					int, caddr_t, int));
+STATIC int wi_seek		__P((struct wi_softc *, int, int, int));
+STATIC int wi_alloc_nicmem	__P((struct wi_softc *, int, int *));
+STATIC void wi_inquire		__P((void *));
+STATIC void wi_setdef		__P((struct wi_softc *, struct wi_req *));
+STATIC int wi_mgmt_xmit		__P((struct wi_softc *, caddr_t, int));
+
+int	wi_intr			__P((void *));
+int	wi_attach		__P((struct wi_softc *));
+void	wi_init			__P((void *));
+void	wi_stop			__P((struct wi_softc *));
+
+/* Autoconfig definition of driver back-end */
+struct cfdriver wi_cd = {
+	NULL, "wi", DV_IFNET
+};
+
+int
+wi_attach(sc)
+	struct wi_softc *sc;
+{
+	struct wi_ltv_macaddr	mac;
+	struct wi_ltv_gen	gen;
+	struct ifnet		*ifp;
+
+	sc->wi_gone = 0;
+
+	/* Make sure interrupts are disabled. */
+	CSR_WRITE_2(sc, WI_INT_EN, 0);
+	CSR_WRITE_2(sc, WI_EVENT_ACK, 0xffff);
+
+	wi_reset(sc);
+
+	/* Read the station address. */
+	mac.wi_type = WI_RID_MAC_NODE;
+	mac.wi_len = 4;
+	wi_read_record(sc, (struct wi_ltv_gen *)&mac);
+	bcopy((char *)&mac.wi_mac_addr, (char *)&sc->arpcom.ac_enaddr,
+	    ETHER_ADDR_LEN);
+
+	printf(": %saddress %s", sc->sc_prism2? "Prism II, " : "",
+	    ether_sprintf(sc->arpcom.ac_enaddr));
+
+	ifp = &sc->arpcom.ac_if;
+	bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
+	ifp->if_softc = sc;
+	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
+	ifp->if_ioctl = wi_ioctl;
+	ifp->if_start = wi_start;
+	ifp->if_watchdog = wi_watchdog;
+	ifp->if_baudrate = 10000000;
+	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+
+	bzero(sc->wi_node_name, sizeof(sc->wi_node_name));
+	bcopy(WI_DEFAULT_NODENAME, sc->wi_node_name,
+	    sizeof(WI_DEFAULT_NODENAME) - 1);
+
+	bzero(sc->wi_net_name, sizeof(sc->wi_net_name));
+	bcopy(WI_DEFAULT_NETNAME, sc->wi_net_name,
+	    sizeof(WI_DEFAULT_NETNAME) - 1);
+
+	bzero(sc->wi_ibss_name, sizeof(sc->wi_ibss_name));
+	bcopy(WI_DEFAULT_IBSS, sc->wi_ibss_name,
+	    sizeof(WI_DEFAULT_IBSS) - 1);
+
+	sc->wi_portnum = WI_DEFAULT_PORT;
+	sc->wi_ptype = WI_PORTTYPE_BSS;
+	sc->wi_ap_density = WI_DEFAULT_AP_DENSITY;
+	sc->wi_rts_thresh = WI_DEFAULT_RTS_THRESH;
+	sc->wi_tx_rate = WI_DEFAULT_TX_RATE;
+	sc->wi_max_data_len = WI_DEFAULT_DATALEN;
+	sc->wi_create_ibss = WI_DEFAULT_CREATE_IBSS;
+	sc->wi_pm_enabled = WI_DEFAULT_PM_ENABLED;
+	sc->wi_max_sleep = WI_DEFAULT_MAX_SLEEP;
+
+	/*
+	 * Read the default channel from the NIC. This may vary
+	 * depending on the country where the NIC was purchased, so
+	 * we can't hard-code a default and expect it to work for
+	 * everyone.
+	 */
+	gen.wi_type = WI_RID_OWN_CHNL;
+	gen.wi_len = 2;
+	wi_read_record(sc, &gen);
+	sc->wi_channel = gen.wi_val;
+
+	/*
+	 * Find out if we support WEP on this card.
+	 */
+	gen.wi_type = WI_RID_WEP_AVAIL;
+	gen.wi_len = 2;
+	wi_read_record(sc, &gen);
+	sc->wi_has_wep = gen.wi_val;
+	timeout_set(&sc->sc_timo, wi_inquire, sc);
+
+	bzero((char *)&sc->wi_stats, sizeof(sc->wi_stats));
+
+	/*
+	 * Call MI attach routines.
+	 */
+	if_attach(ifp);
+	ether_ifattach(ifp);
+	printf("\n");
+
+#if NBPFILTER > 0
+	BPFATTACH(&sc->arpcom.ac_if.if_bpf, ifp, DLT_EN10MB,
+	    sizeof(struct ether_header));
+#endif
+
+	shutdownhook_establish(wi_shutdown, sc);
+
+	wi_init(sc);
+	wi_stop(sc);
+
+	return (0);
+}
+
+int
+wi_intr(vsc)
+	void			*vsc;
+{
+	struct wi_softc		*sc = vsc;
+	struct ifnet		*ifp;
+	u_int16_t		status;
+
+	DPRINTF(WID_INTR, ("wi_intr: sc %p\n", sc));
+
+	ifp = &sc->arpcom.ac_if;
+
+	if (!(ifp->if_flags & IFF_UP)) {
+		CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
+		CSR_WRITE_2(sc, WI_INT_EN, 0);
+		return (0);
+	}
+
+	/* Disable interrupts. */
+	CSR_WRITE_2(sc, WI_INT_EN, 0);
+
+	status = CSR_READ_2(sc, WI_EVENT_STAT);
+	CSR_WRITE_2(sc, WI_EVENT_ACK, ~WI_INTRS);
+
+	if (status & WI_EV_RX) {
+		wi_rxeof(sc);
+		CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
+	}
+
+	if (status & WI_EV_TX) {
+		wi_txeof(sc, status);
+		CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX);
+	}
+
+	if (status & WI_EV_ALLOC) {
+		int			id;
+		id = CSR_READ_2(sc, WI_ALLOC_FID);
+		CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
+		if (id == sc->wi_tx_data_id)
+			wi_txeof(sc, status);
+	}
+
+	if (status & WI_EV_INFO) {
+		wi_update_stats(sc);
+		CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
+	}
+
+	if (status & WI_EV_TX_EXC) {
+		wi_txeof(sc, status);
+		CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
+	}
+
+	if (status & WI_EV_INFO_DROP) {
+		CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO_DROP);
+	}
+
+	/* Re-enable interrupts. */
+	CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
+
+	if (ifp->if_snd.ifq_head != NULL)
+		wi_start(ifp);
+
+	return (1);
+}
+
+STATIC void
+wi_rxeof(sc)
+	struct wi_softc		*sc;
+{
+	struct ifnet		*ifp;
+	struct ether_header	*eh;
+	struct wi_frame		rx_frame;
+	struct mbuf		*m;
+	int			id;
+
+	ifp = &sc->arpcom.ac_if;
+
+	id = CSR_READ_2(sc, WI_RX_FID);
+
+	/* First read in the frame header */
+	if (wi_read_data(sc, id, 0, (caddr_t)&rx_frame, sizeof(rx_frame))) {
+		ifp->if_ierrors++;
+		return;
+	}
+
+	if (rx_frame.wi_status & WI_STAT_ERRSTAT) {
+		ifp->if_ierrors++;
+		return;
+	}
+
+	MGETHDR(m, M_DONTWAIT, MT_DATA);
+	if (m == NULL) {
+		ifp->if_ierrors++;
+		return;
+	}
+	MCLGET(m, M_DONTWAIT);
+	if (!(m->m_flags & M_EXT)) {
+		m_freem(m);
+		ifp->if_ierrors++;
+		return;
+	}
+
+	eh = mtod(m, struct ether_header *);
+	m->m_pkthdr.rcvif = ifp;
+
+	if (rx_frame.wi_status == WI_STAT_1042 ||
+	    rx_frame.wi_status == WI_STAT_TUNNEL ||
+	    rx_frame.wi_status == WI_STAT_WMP_MSG) {
+		if((rx_frame.wi_dat_len + WI_SNAPHDR_LEN) > MCLBYTES) {
+			printf(WI_PRT_FMT ": oversized packet received "
+			    "(wi_dat_len=%d, wi_status=0x%x)\n",
+			    WI_PRT_ARG(sc), rx_frame.wi_dat_len,
+			    rx_frame.wi_status);
+			m_freem(m);
+			ifp->if_ierrors++;
+			return;
+		}
+		m->m_pkthdr.len = m->m_len =
+		    rx_frame.wi_dat_len + WI_SNAPHDR_LEN;
+
+		bcopy((char *)&rx_frame.wi_addr1,
+		    (char *)&eh->ether_dhost, ETHER_ADDR_LEN);
+		bcopy((char *)&rx_frame.wi_addr2,
+		    (char *)&eh->ether_shost, ETHER_ADDR_LEN);
+		bcopy((char *)&rx_frame.wi_type,
+		    (char *)&eh->ether_type, sizeof(u_int16_t));
+
+		if (wi_read_data(sc, id, WI_802_11_OFFSET,
+		    mtod(m, caddr_t) + sizeof(struct ether_header),
+		    m->m_len + 2)) {
+			m_freem(m);
+			ifp->if_ierrors++;
+			return;
+		}
+	} else {
+		if((rx_frame.wi_dat_len +
+		    sizeof(struct ether_header)) > MCLBYTES) {
+			printf(WI_PRT_FMT ": oversized packet received "
+			    "(wi_dat_len=%d, wi_status=0x%x)\n",
+			    WI_PRT_ARG(sc), rx_frame.wi_dat_len,
+			    rx_frame.wi_status);
+			m_freem(m);
+			ifp->if_ierrors++;
+			return;
+		}
+		m->m_pkthdr.len = m->m_len =
+		    rx_frame.wi_dat_len + sizeof(struct ether_header);
+
+		if (wi_read_data(sc, id, WI_802_3_OFFSET,
+		    mtod(m, caddr_t), m->m_len + 2)) {
+			m_freem(m);
+			ifp->if_ierrors++;
+			return;
+		}
+	}
+
+	ifp->if_ipackets++;
+
+#if NBPFILTER > 0
+	/* Handle BPF listeners. */
+	if (ifp->if_bpf)
+		BPF_MTAP(ifp, m);
+#endif
+
+	/* Receive packet. */
+	m_adj(m, sizeof(struct ether_header));
+	ether_input(ifp, eh, m);
+
+	return;
+}
+
+STATIC void
+wi_txeof(sc, status)
+	struct wi_softc		*sc;
+	int			status;
+{
+	struct ifnet		*ifp;
+
+	ifp = &sc->arpcom.ac_if;
+
+	ifp->if_timer = 0;
+	ifp->if_flags &= ~IFF_OACTIVE;
+
+	if (status & WI_EV_TX_EXC)
+		ifp->if_oerrors++;
+	else
+		ifp->if_opackets++;
+
+	return;
+}
+
+void
+wi_inquire(xsc)
+	void			*xsc;
+{
+	struct wi_softc		*sc;
+	struct ifnet		*ifp;
+	int s, rv;
+
+	sc = xsc;
+	ifp = &sc->arpcom.ac_if;
+
+	timeout_add(&sc->sc_timo, hz * 60);
+
+	/* Don't do this while we're transmitting */
+	if (ifp->if_flags & IFF_OACTIVE)
+		return;
+
+	s = splnet();
+	rv = wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_COUNTERS);
+	splx(s);
+	if (rv)
+		printf(WI_PRT_FMT ": wi_cmd failed with %d\n", WI_PRT_ARG(sc),
+		    rv);
+
+	return;
+}
+
+void
+wi_update_stats(sc)
+	struct wi_softc		*sc;
+{
+	struct wi_ltv_gen	gen;
+	u_int16_t		id;
+	struct ifnet		*ifp;
+	u_int32_t		*ptr;
+	int			i;
+	u_int16_t		t;
+
+	ifp = &sc->arpcom.ac_if;
+
+	id = CSR_READ_2(sc, WI_INFO_FID);
+
+	wi_read_data(sc, id, 0, (char *)&gen, 4);
+
+	if (gen.wi_type != WI_INFO_COUNTERS ||
+	    gen.wi_len > (sizeof(sc->wi_stats) / 4) + 1)
+		return;
+
+	ptr = (u_int32_t *)&sc->wi_stats;
+
+	for (i = 0; i < gen.wi_len - 1; i++) {
+		t = CSR_READ_2(sc, WI_DATA1);
+#ifdef WI_HERMES_STATS_WAR
+		if (t > 0xF000)
+			t = ~t & 0xFFFF;
+#endif
+		ptr[i] += t;
+	}
+
+	ifp->if_collisions = sc->wi_stats.wi_tx_single_retries +
+	    sc->wi_stats.wi_tx_multi_retries +
+	    sc->wi_stats.wi_tx_retry_limit;
+
+	return;
+}
+
+STATIC int
+wi_cmd(sc, cmd, val)
+	struct wi_softc		*sc;
+	int			cmd;
+	int			val;
+{
+	int			i, s = 0;
+
+	CSR_WRITE_2(sc, WI_PARAM0, val);
+	CSR_WRITE_2(sc, WI_COMMAND, cmd);
+
+	for (i = WI_TIMEOUT; i--; DELAY(1)) {
+		/*
+		 * Wait for 'command complete' bit to be
+		 * set in the event status register.
+		 */
+		s = CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD;
+		if (s) {
+			/* Ack the event and read result code. */
+			s = CSR_READ_2(sc, WI_STATUS);
+			CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
+#ifdef foo
+			if ((s & WI_CMD_CODE_MASK) != (cmd & WI_CMD_CODE_MASK))
+				return(EIO);
+#endif
+			if (s & WI_STAT_CMD_RESULT)
+				return(EIO);
+			break;
+		}
+	}
+
+	if (i < 0)
+		return(ETIMEDOUT);
+
+	return(0);
+}
+
+STATIC void
+wi_reset(sc)
+	struct wi_softc		*sc;
+{
+	DPRINTF(WID_RESET, ("wi_reset: sc %p\n", sc));
+
+	if (wi_cmd(sc, WI_CMD_INI, 0))
+		printf(WI_PRT_FMT ": init failed\n", WI_PRT_ARG(sc));
+	CSR_WRITE_2(sc, WI_INT_EN, 0);
+	CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
+
+	/* Calibrate timer. */
+	WI_SETVAL(WI_RID_TICK_TIME, 8);
+
+	return;
+}
+
+/*
+ * Read an LTV record from the NIC.
+ */
+STATIC int
+wi_read_record(sc, ltv)
+	struct wi_softc		*sc;
+	struct wi_ltv_gen	*ltv;
+{
+	u_int16_t		*ptr;
+	int			i, len, code;
+	struct wi_ltv_gen	*oltv, p2ltv;
+
+	if (sc->sc_prism2) {
+		oltv = ltv;
+		switch (ltv->wi_type) {
+		case WI_RID_ENCRYPTION:
+			p2ltv.wi_type = WI_RID_P2_ENCRYPTION;
+			p2ltv.wi_len = 2;
+			ltv = &p2ltv;
+			break;
+		case WI_RID_TX_CRYPT_KEY:
+			p2ltv.wi_type = WI_RID_P2_TX_CRYPT_KEY;
+			p2ltv.wi_len = 2;
+			ltv = &p2ltv;
+			break;
+		}
+	}
+
+	/* Tell the NIC to enter record read mode. */
+	if (wi_cmd(sc, WI_CMD_ACCESS|WI_ACCESS_READ, ltv->wi_type))
+		return(EIO);
+
+	/* Seek to the record. */
+	if (wi_seek(sc, ltv->wi_type, 0, WI_BAP1))
+		return(EIO);
+
+	/*
+	 * Read the length and record type and make sure they
+	 * match what we expect (this verifies that we have enough
+	 * room to hold all of the returned data).
+	 */
+	len = CSR_READ_2(sc, WI_DATA1);
+	if (len > ltv->wi_len)
+		return(ENOSPC);
+	code = CSR_READ_2(sc, WI_DATA1);
+	if (code != ltv->wi_type)
+		return(EIO);
+
+	ltv->wi_len = len;
+	ltv->wi_type = code;
+
+	/* Now read the data. */
+	ptr = &ltv->wi_val;
+	for (i = 0; i < ltv->wi_len - 1; i++)
+		ptr[i] = CSR_READ_2(sc, WI_DATA1);
+
+	if (sc->sc_prism2) {
+		switch (oltv->wi_type) {
+		case WI_RID_TX_RATE:
+		case WI_RID_CUR_TX_RATE:
+			switch (ltv->wi_val) {
+			case 1: oltv->wi_val = 1; break;
+			case 2: oltv->wi_val = 2; break;
+			case 3:	oltv->wi_val = 6; break;
+			case 4: oltv->wi_val = 5; break;
+			case 7: oltv->wi_val = 7; break;
+			case 8: oltv->wi_val = 11; break;
+			case 15: oltv->wi_val = 3; break;
+			default: oltv->wi_val = 0x100 + ltv->wi_val; break;
+			}
+			break;
+		case WI_RID_ENCRYPTION:
+			oltv->wi_len = 2;
+			if (ltv->wi_val & 0x01)
+				oltv->wi_val = 1;
+			else
+				oltv->wi_val = 0;
+			break;
+		case WI_RID_TX_CRYPT_KEY:
+			oltv->wi_len = 2;
+			oltv->wi_val = ltv->wi_val;
+			break;
+		}
+	}
+
+	return(0);
+}
+
+/*
+ * Same as read, except we inject data instead of reading it.
+ */
+STATIC int
+wi_write_record(sc, ltv)
+	struct wi_softc		*sc;
+	struct wi_ltv_gen	*ltv;
+{
+	u_int16_t		*ptr;
+	int			i;
+	struct wi_ltv_gen	p2ltv;
+
+	if (sc->sc_prism2) {
+		switch (ltv->wi_type) {
+		case WI_RID_TX_RATE:
+			switch (ltv->wi_val) {
+			case 1: p2ltv.wi_val = 1; break;
+			case 2: p2ltv.wi_val = 2; break;
+			case 3:	p2ltv.wi_val = 15; break;
+			case 5: p2ltv.wi_val = 4; break;
+			case 6: p2ltv.wi_val = 3; break;
+			case 7: p2ltv.wi_val = 7; break;
+			case 11: p2ltv.wi_val = 8; break;
+			default: return EINVAL;
+			}
+			ltv = &p2ltv;
+			break;
+		case WI_RID_ENCRYPTION:
+			p2ltv.wi_type = WI_RID_P2_ENCRYPTION;
+			p2ltv.wi_len = 2;
+			if (ltv->wi_val & 0x01)
+				p2ltv.wi_val = 0x03;
+			else
+				p2ltv.wi_val = 0x90;
+			ltv = &p2ltv;
+			break;
+		case WI_RID_TX_CRYPT_KEY:
+			p2ltv.wi_type = WI_RID_P2_TX_CRYPT_KEY;
+			p2ltv.wi_len = 2;
+			p2ltv.wi_val = ltv->wi_val;
+			ltv = &p2ltv;
+			break;
+		case WI_RID_DEFLT_CRYPT_KEYS: {
+				int error;
+				struct wi_ltv_str ws;
+				struct wi_ltv_keys *wk = (struct wi_ltv_keys *)ltv;
+				for (i = 0; i < 4; i++) {
+					ws.wi_len = 4;
+					ws.wi_type = WI_RID_P2_CRYPT_KEY0 + i;
+					bcopy(&wk->wi_keys[i].wi_keydat,
+					    ws.wi_str, 5);
+					ws.wi_str[5] = '\0';
+					error = wi_write_record(sc,
+					    (struct wi_ltv_gen *)&ws);
+					if (error)
+						return (error);
+				}
+			}
+			return (0);
+		}
+	}
+
+	if (wi_seek(sc, ltv->wi_type, 0, WI_BAP1))
+		return(EIO);
+
+	CSR_WRITE_2(sc, WI_DATA1, ltv->wi_len);
+	CSR_WRITE_2(sc, WI_DATA1, ltv->wi_type);
+
+	ptr = &ltv->wi_val;
+	for (i = 0; i < ltv->wi_len - 1; i++)
+		CSR_WRITE_2(sc, WI_DATA1, ptr[i]);
+
+	if (wi_cmd(sc, WI_CMD_ACCESS|WI_ACCESS_WRITE, ltv->wi_type))
+		return(EIO);
+
+	return(0);
+}
+
+STATIC int
+wi_seek(sc, id, off, chan)
+	struct wi_softc		*sc;
+	int			id, off, chan;
+{
+	int			i;
+	int			selreg, offreg;
+
+	switch (chan) {
+	case WI_BAP0:
+		selreg = WI_SEL0;
+		offreg = WI_OFF0;
+		break;
+	case WI_BAP1:
+		selreg = WI_SEL1;
+		offreg = WI_OFF1;
+		break;
+	default:
+		printf(WI_PRT_FMT ": invalid data path: %x\n", WI_PRT_ARG(sc),
+		    chan);
+		return(EIO);
+	}
+
+	CSR_WRITE_2(sc, selreg, id);
+	CSR_WRITE_2(sc, offreg, off);
+
+	for (i = WI_TIMEOUT; i--; DELAY(1))
+		if (!(CSR_READ_2(sc, offreg) & (WI_OFF_BUSY|WI_OFF_ERR)))
+			break;
+
+	if (i < 0)
+		return(ETIMEDOUT);
+
+	return(0);
+}
+
+STATIC int
+wi_read_data(sc, id, off, buf, len)
+	struct wi_softc		*sc;
+	int			id, off;
+	caddr_t			buf;
+	int			len;
+{
+	int			i;
+	u_int16_t		*ptr;
+
+	if (wi_seek(sc, id, off, WI_BAP1))
+		return(EIO);
+
+	ptr = (u_int16_t *)buf;
+	for (i = 0; i < len / 2; i++)
+		ptr[i] = CSR_READ_2(sc, WI_DATA1);
+
+	return(0);
+}
+
+/*
+ * According to the comments in the HCF Light code, there is a bug in
+ * the Hermes (or possibly in certain Hermes firmware revisions) where
+ * the chip's internal autoincrement counter gets thrown off during
+ * data writes: the autoincrement is missed, causing one data word to
+ * be overwritten and subsequent words to be written to the wrong memory
+ * locations. The end result is that we could end up transmitting bogus
+ * frames without realizing it. The workaround for this is to write a
+ * couple of extra guard words after the end of the transfer, then
+ * attempt to read then back. If we fail to locate the guard words where
+ * we expect them, we preform the transfer over again.
+ */
+STATIC int
+wi_write_data(sc, id, off, buf, len)
+	struct wi_softc		*sc;
+	int			id, off;
+	caddr_t			buf;
+	int			len;
+{
+	int			i;
+	u_int16_t		*ptr;
+
+#ifdef WI_HERMES_AUTOINC_WAR
+again:
+#endif
+
+	if (wi_seek(sc, id, off, WI_BAP0))
+		return(EIO);
+
+	ptr = (u_int16_t *)buf;
+	for (i = 0; i < (len / 2); i++)
+		CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
+
+#ifdef WI_HERMES_AUTOINC_WAR
+	CSR_WRITE_2(sc, WI_DATA0, 0x1234);
+	CSR_WRITE_2(sc, WI_DATA0, 0x5678);
+
+	if (wi_seek(sc, id, off + len, WI_BAP0))
+		return(EIO);
+
+	if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
+	    CSR_READ_2(sc, WI_DATA0) != 0x5678)
+		goto again;
+#endif
+
+	return(0);
+}
+
+/*
+ * Allocate a region of memory inside the NIC and zero
+ * it out.
+ */
+STATIC int
+wi_alloc_nicmem(sc, len, id)
+	struct wi_softc		*sc;
+	int			len;
+	int			*id;
+{
+	int			i;
+
+	if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len)) {
+		printf(WI_PRT_FMT ": failed to allocate %d bytes on NIC\n",
+		    WI_PRT_ARG(sc), len);
+		return(ENOMEM);
+	}
+
+	for (i = WI_TIMEOUT; i--; DELAY(1)) {
+		if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
+			break;
+	}
+
+	if (i < 0)
+		return(ETIMEDOUT);
+
+	CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
+	*id = CSR_READ_2(sc, WI_ALLOC_FID);
+
+	if (wi_seek(sc, *id, 0, WI_BAP0))
+		return(EIO);
+
+	for (i = 0; i < len / 2; i++)
+		CSR_WRITE_2(sc, WI_DATA0, 0);
+
+	return(0);
+}
+
+STATIC void
+wi_setmulti(sc)
+	struct wi_softc		*sc;
+{
+	struct ifnet		*ifp;
+	int			i = 0;
+	struct wi_ltv_mcast	mcast;
+	struct ether_multistep	step;
+	struct ether_multi	*enm;
+
+	ifp = &sc->arpcom.ac_if;
+
+	bzero((char *)&mcast, sizeof(mcast));
+
+	mcast.wi_type = WI_RID_MCAST;
+	mcast.wi_len = ((ETHER_ADDR_LEN / 2) * 16) + 1;
+
+	if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
+		wi_write_record(sc, (struct wi_ltv_gen *)&mcast);
+		return;
+	}
+
+	ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
+	while (enm != NULL) {
+		if (i >= 16) {
+			bzero((char *)&mcast, sizeof(mcast));
+			break;
+		}
+
+		/* Punt on ranges. */
+		if (bcmp(enm->enm_addrlo, enm->enm_addrhi,
+		    sizeof(enm->enm_addrlo)) != 0)
+			break;
+		bcopy(enm->enm_addrlo, (char *)&mcast.wi_mcast[i],
+		    ETHER_ADDR_LEN);
+		i++;
+		ETHER_NEXT_MULTI(step, enm);
+	}
+
+	mcast.wi_len = (i * 3) + 1;
+	wi_write_record(sc, (struct wi_ltv_gen *)&mcast);
+
+	return;
+}
+
+STATIC void
+wi_setdef(sc, wreq)
+	struct wi_softc		*sc;
+	struct wi_req		*wreq;
+{
+	struct sockaddr_dl	*sdl;
+	struct ifaddr		*ifa;
+	struct ifnet		*ifp;
+	extern struct ifaddr	**ifnet_addrs;
+
+	ifp = &sc->arpcom.ac_if;
+
+	switch(wreq->wi_type) {
+	case WI_RID_MAC_NODE:
+		ifa = ifnet_addrs[ifp->if_index];
+		sdl = (struct sockaddr_dl *)ifa->ifa_addr;
+		bcopy((char *)&wreq->wi_val, LLADDR(sdl), ETHER_ADDR_LEN);
+		bcopy((char *)&wreq->wi_val, (char *)&sc->arpcom.ac_enaddr,
+		    ETHER_ADDR_LEN);
+		break;
+	case WI_RID_PORTTYPE:
+		sc->wi_ptype = wreq->wi_val[0];
+		break;
+	case WI_RID_TX_RATE:
+		sc->wi_tx_rate = wreq->wi_val[0];
+		break;
+	case WI_RID_MAX_DATALEN:
+		sc->wi_max_data_len = wreq->wi_val[0];
+		break;
+	case WI_RID_RTS_THRESH:
+		sc->wi_rts_thresh = wreq->wi_val[0];
+		break;
+	case WI_RID_SYSTEM_SCALE:
+		sc->wi_ap_density = wreq->wi_val[0];
+		break;
+	case WI_RID_CREATE_IBSS:
+		sc->wi_create_ibss = wreq->wi_val[0];
+		break;
+	case WI_RID_OWN_CHNL:
+		sc->wi_channel = wreq->wi_val[0];
+		break;
+	case WI_RID_NODENAME:
+		bzero(sc->wi_node_name, sizeof(sc->wi_node_name));
+		bcopy((char *)&wreq->wi_val[1], sc->wi_node_name, 30);
+		break;
+	case WI_RID_DESIRED_SSID:
+		bzero(sc->wi_net_name, sizeof(sc->wi_net_name));
+		bcopy((char *)&wreq->wi_val[1], sc->wi_net_name, 30);
+		break;
+	case WI_RID_OWN_SSID:
+		bzero(sc->wi_ibss_name, sizeof(sc->wi_ibss_name));
+		bcopy((char *)&wreq->wi_val[1], sc->wi_ibss_name, 30);
+		break;
+	case WI_RID_PM_ENABLED:
+		sc->wi_pm_enabled = wreq->wi_val[0];
+		break;
+	case WI_RID_MAX_SLEEP:
+		sc->wi_max_sleep = wreq->wi_val[0];
+		break;
+	case WI_RID_ENCRYPTION:
+		sc->wi_use_wep = wreq->wi_val[0];
+		break;
+	case WI_RID_TX_CRYPT_KEY:
+		sc->wi_tx_key = wreq->wi_val[0];
+		break;
+	case WI_RID_DEFLT_CRYPT_KEYS:
+		bcopy((char *)wreq, (char *)&sc->wi_keys,
+		    sizeof(struct wi_ltv_keys));
+		break;
+	default:
+		break;
+	}
+
+	/* Reinitialize WaveLAN. */
+	wi_init(sc);
+
+	return;
+}
+
+STATIC int
+wi_ioctl(ifp, command, data)
+	struct ifnet		*ifp;
+	u_long			command;
+	caddr_t			data;
+{
+	int			s, error = 0;
+	struct wi_softc		*sc;
+	struct wi_req		wreq;
+	struct ifreq		*ifr;
+	struct proc		*p = curproc;
+	struct ifaddr		*ifa = (struct ifaddr *)data;
+
+	s = splimp();
+
+	sc = ifp->if_softc;
+	ifr = (struct ifreq *)data;
+
+	if (sc->wi_gone) {
+		splx(s);
+		return(ENODEV);
+	}
+
+	DPRINTF (WID_IOCTL, ("wi_ioctl: command %lu data %p\n",
+	    command, data));
+
+	if ((error = ether_ioctl(ifp, &sc->arpcom, command, data)) > 0) {
+		splx(s);
+		return error;
+	}
+
+	switch(command) {
+	case SIOCSIFADDR:
+		ifp->if_flags |= IFF_UP;
+		switch (ifa->ifa_addr->sa_family) {
+#ifdef INET
+		case AF_INET:
+			wi_init(sc);
+			arp_ifinit(&sc->arpcom, ifa);
+			break;
+#endif	/* INET */
+		default:
+			wi_init(sc);
+			break;
+		}
+		break;
+
+	case SIOCSIFMTU:
+		if (ifr->ifr_mtu > ETHERMTU || ifr->ifr_mtu < ETHERMIN) {
+			error = EINVAL;
+		} else if (ifp->if_mtu != ifr->ifr_mtu) {
+			ifp->if_mtu = ifr->ifr_mtu;
+		}
+		break;
+
+	case SIOCSIFFLAGS:
+		if (ifp->if_flags & IFF_UP) {
+			if (ifp->if_flags & IFF_RUNNING &&
+			    ifp->if_flags & IFF_PROMISC &&
+			    !(sc->wi_if_flags & IFF_PROMISC)) {
+				WI_SETVAL(WI_RID_PROMISC, 1);
+			} else if (ifp->if_flags & IFF_RUNNING &&
+			    !(ifp->if_flags & IFF_PROMISC) &&
+			    sc->wi_if_flags & IFF_PROMISC) {
+				WI_SETVAL(WI_RID_PROMISC, 0);
+			}
+			wi_init(sc);
+		} else {
+			if (ifp->if_flags & IFF_RUNNING) {
+				wi_stop(sc);
+			}
+		}
+		sc->wi_if_flags = ifp->if_flags;
+		error = 0;
+		break;
+	case SIOCADDMULTI:
+	case SIOCDELMULTI:
+		/* Update our multicast list. */
+		error = (command == SIOCADDMULTI) ?
+		    ether_addmulti(ifr, &sc->arpcom) :
+		    ether_delmulti(ifr, &sc->arpcom);
+		if (error == ENETRESET) {
+			/*
+			 * Multicast list has changed; set the hardware filter
+			 * accordingly.
+			 */
+			wi_setmulti(sc);
+			error = 0;
+		}
+		break;
+	case SIOCGWAVELAN:
+		error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
+		if (error)
+			break;
+		if (wreq.wi_type == WI_RID_IFACE_STATS) {
+			bcopy((char *)&sc->wi_stats, (char *)&wreq.wi_val,
+			    sizeof(sc->wi_stats));
+			wreq.wi_len = (sizeof(sc->wi_stats) / 2) + 1;
+		} else if (wreq.wi_type == WI_RID_DEFLT_CRYPT_KEYS) {
+			/* For non-root user, return all-zeroes keys */
+			if (suser(p->p_ucred, &p->p_acflag))
+				bzero((char *)&wreq,
+					sizeof(struct wi_ltv_keys));
+			else
+				bcopy((char *)&sc->wi_keys, (char *)&wreq,
+					sizeof(struct wi_ltv_keys));
+		} else {
+			if (wi_read_record(sc, (struct wi_ltv_gen *)&wreq)) {
+				error = EINVAL;
+				break;
+			}
+		}
+		error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
+		break;
+	case SIOCSWAVELAN:
+		error = suser(p->p_ucred, &p->p_acflag);
+		if (error)
+			break;
+		error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
+		if (error)
+			break;
+		if (wreq.wi_type == WI_RID_IFACE_STATS) {
+			error = EINVAL;
+			break;
+		} else if (wreq.wi_type == WI_RID_MGMT_XMIT) {
+			error = wi_mgmt_xmit(sc, (caddr_t)&wreq.wi_val,
+			    wreq.wi_len);
+		} else {
+			error = wi_write_record(sc, (struct wi_ltv_gen *)&wreq);
+			if (!error)
+				wi_setdef(sc, &wreq);
+		}
+		break;
+	default:
+		error = EINVAL;
+		break;
+	}
+
+	splx(s);
+
+	return(error);
+}
+
+STATIC void
+wi_init(xsc)
+	void			*xsc;
+{
+	struct wi_softc		*sc = xsc;
+	struct ifnet		*ifp = &sc->arpcom.ac_if;
+	int			s;
+	struct wi_ltv_macaddr	mac;
+	int			id = 0;
+
+	if (sc->wi_gone)
+		return;
+
+	DPRINTF(WID_INIT, ("wi_init: sc %p\n", sc));
+
+	s = splimp();
+
+	if (ifp->if_flags & IFF_RUNNING)
+		wi_stop(sc);
+
+	wi_reset(sc);
+
+	/* Program max data length. */
+	WI_SETVAL(WI_RID_MAX_DATALEN, sc->wi_max_data_len);
+
+	/* Enable/disable IBSS creation. */
+	WI_SETVAL(WI_RID_CREATE_IBSS, sc->wi_create_ibss);
+
+	/* Set the port type. */
+	WI_SETVAL(WI_RID_PORTTYPE, sc->wi_ptype);
+
+	/* Program the RTS/CTS threshold. */
+	WI_SETVAL(WI_RID_RTS_THRESH, sc->wi_rts_thresh);
+
+	/* Program the TX rate */
+	WI_SETVAL(WI_RID_TX_RATE, sc->wi_tx_rate);
+
+	/* Access point density */
+	WI_SETVAL(WI_RID_SYSTEM_SCALE, sc->wi_ap_density);
+
+	/* Power Management Enabled */
+	WI_SETVAL(WI_RID_PM_ENABLED, sc->wi_pm_enabled);
+
+	/* Power Managment Max Sleep */
+	WI_SETVAL(WI_RID_MAX_SLEEP, sc->wi_max_sleep);
+
+	/* Specify the IBSS name */
+	WI_SETSTR(WI_RID_OWN_SSID, sc->wi_ibss_name);
+
+	/* Specify the network name */
+	WI_SETSTR(WI_RID_DESIRED_SSID, sc->wi_net_name);
+
+	/* Specify the frequency to use */
+	WI_SETVAL(WI_RID_OWN_CHNL, sc->wi_channel);
+
+	/* Program the nodename. */
+	WI_SETSTR(WI_RID_NODENAME, sc->wi_node_name);
+
+	/* Set our MAC address. */
+	mac.wi_len = 4;
+	mac.wi_type = WI_RID_MAC_NODE;
+	bcopy((char *)&sc->arpcom.ac_enaddr,
+	   (char *)&mac.wi_mac_addr, ETHER_ADDR_LEN);
+	wi_write_record(sc, (struct wi_ltv_gen *)&mac);
+
+	/* Configure WEP. */
+	if (sc->wi_has_wep) {
+		WI_SETVAL(WI_RID_ENCRYPTION, sc->wi_use_wep);
+		WI_SETVAL(WI_RID_TX_CRYPT_KEY, sc->wi_tx_key);
+		sc->wi_keys.wi_len = (sizeof(struct wi_ltv_keys) / 2) + 1;
+		sc->wi_keys.wi_type = WI_RID_DEFLT_CRYPT_KEYS;
+		wi_write_record(sc, (struct wi_ltv_gen *)&sc->wi_keys);
+	}
+
+	/* Initialize promisc mode. */
+	if (ifp->if_flags & IFF_PROMISC) {
+		WI_SETVAL(WI_RID_PROMISC, 1);
+	} else {
+		WI_SETVAL(WI_RID_PROMISC, 0);
+	}
+
+	/* Set multicast filter. */
+	wi_setmulti(sc);
+
+	/* Enable desired port */
+	wi_cmd(sc, WI_CMD_ENABLE|sc->wi_portnum, 0);
+
+	if (wi_alloc_nicmem(sc, 1518 + sizeof(struct wi_frame) + 8, &id))
+		printf(WI_PRT_FMT ": tx buffer allocation failed\n",
+		    WI_PRT_ARG(sc));
+	sc->wi_tx_data_id = id;
+
+	if (wi_alloc_nicmem(sc, 1518 + sizeof(struct wi_frame) + 8, &id))
+		printf(WI_PRT_FMT ": mgmt. buffer allocation failed\n",
+		    WI_PRT_ARG(sc));
+	sc->wi_tx_mgmt_id = id;
+
+	/* enable interrupts */
+	CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
+
+	splx(s);
+
+	ifp->if_flags |= IFF_RUNNING;
+	ifp->if_flags &= ~IFF_OACTIVE;
+
+	timeout_add(&sc->sc_timo, hz * 60);
+
+	return;
+}
+
+STATIC void
+wi_start(ifp)
+	struct ifnet		*ifp;
+{
+	struct wi_softc		*sc;
+	struct mbuf		*m0;
+	struct wi_frame		tx_frame;
+	struct ether_header	*eh;
+	int			id;
+
+	sc = ifp->if_softc;
+
+	DPRINTF(WID_START, ("wi_start: ifp %p sc %p\n", ifp, sc));
+
+	if (sc->wi_gone)
+		return;
+
+	if (ifp->if_flags & IFF_OACTIVE)
+		return;
+
+	IF_DEQUEUE(&ifp->if_snd, m0);
+	if (m0 == NULL)
+		return;
+
+	bzero((char *)&tx_frame, sizeof(tx_frame));
+	id = sc->wi_tx_data_id;
+	eh = mtod(m0, struct ether_header *);
+
+	/*
+	 * Use RFC1042 encoding for IP and ARP datagrams,
+	 * 802.3 for anything else.
+	 */
+	if (ntohs(eh->ether_type) == ETHERTYPE_IP ||
+	    ntohs(eh->ether_type) == ETHERTYPE_ARP ||
+	    ntohs(eh->ether_type) == ETHERTYPE_REVARP ||
+	    ntohs(eh->ether_type) == ETHERTYPE_IPV6) {
+		bcopy((char *)&eh->ether_dhost,
+		    (char *)&tx_frame.wi_addr1, ETHER_ADDR_LEN);
+		bcopy((char *)&eh->ether_shost,
+		    (char *)&tx_frame.wi_addr2, ETHER_ADDR_LEN);
+		bcopy((char *)&eh->ether_dhost,
+		    (char *)&tx_frame.wi_dst_addr, ETHER_ADDR_LEN);
+		bcopy((char *)&eh->ether_shost,
+		    (char *)&tx_frame.wi_src_addr, ETHER_ADDR_LEN);
+
+		tx_frame.wi_dat_len = m0->m_pkthdr.len - WI_SNAPHDR_LEN;
+		tx_frame.wi_frame_ctl = WI_FTYPE_DATA;
+		tx_frame.wi_dat[0] = htons(WI_SNAP_WORD0);
+		tx_frame.wi_dat[1] = htons(WI_SNAP_WORD1);
+		tx_frame.wi_len = htons(m0->m_pkthdr.len - WI_SNAPHDR_LEN);
+		tx_frame.wi_type = eh->ether_type;
+
+		m_copydata(m0, sizeof(struct ether_header),
+		    m0->m_pkthdr.len - sizeof(struct ether_header),
+		    (caddr_t)&sc->wi_txbuf);
+
+		wi_write_data(sc, id, 0, (caddr_t)&tx_frame,
+		    sizeof(struct wi_frame));
+		wi_write_data(sc, id, WI_802_11_OFFSET, (caddr_t)&sc->wi_txbuf,
+		    (m0->m_pkthdr.len - sizeof(struct ether_header)) + 2);
+	} else {
+		tx_frame.wi_dat_len = m0->m_pkthdr.len;
+
+		m_copydata(m0, 0, m0->m_pkthdr.len, (caddr_t)&sc->wi_txbuf);
+
+		wi_write_data(sc, id, 0, (caddr_t)&tx_frame,
+		    sizeof(struct wi_frame));
+		wi_write_data(sc, id, WI_802_3_OFFSET, (caddr_t)&sc->wi_txbuf,
+		    m0->m_pkthdr.len + 2);
+	}
+
+#if NBPFILTER > 0
+	/*
+	 * If there's a BPF listner, bounce a copy of
+	 * this frame to him.
+	 */
+	if (ifp->if_bpf)
+		BPF_MTAP(ifp, m0);
+#endif
+
+	m_freem(m0);
+
+	if (wi_cmd(sc, WI_CMD_TX|WI_RECLAIM, id))
+		printf(WI_PRT_FMT ": xmit failed\n", WI_PRT_ARG(sc));
+
+	ifp->if_flags |= IFF_OACTIVE;
+
+	/*
+	 * Set a timeout in case the chip goes out to lunch.
+	 */
+	ifp->if_timer = 5;
+
+	return;
+}
+
+STATIC int
+wi_mgmt_xmit(sc, data, len)
+	struct wi_softc		*sc;
+	caddr_t			data;
+	int			len;
+{
+	struct wi_frame		tx_frame;
+	int			id;
+	struct wi_80211_hdr	*hdr;
+	caddr_t			dptr;
+
+	if (sc->wi_gone)
+		return(ENODEV);
+
+	hdr = (struct wi_80211_hdr *)data;
+	dptr = data + sizeof(struct wi_80211_hdr);
+
+	bzero((char *)&tx_frame, sizeof(tx_frame));
+	id = sc->wi_tx_mgmt_id;
+
+	bcopy((char *)hdr, (char *)&tx_frame.wi_frame_ctl,
+	   sizeof(struct wi_80211_hdr));
+
+	tx_frame.wi_dat_len = len - WI_SNAPHDR_LEN;
+	tx_frame.wi_len = htons(len - WI_SNAPHDR_LEN);
+
+	wi_write_data(sc, id, 0, (caddr_t)&tx_frame, sizeof(struct wi_frame));
+	wi_write_data(sc, id, WI_802_11_OFFSET_RAW, dptr,
+	    (len - sizeof(struct wi_80211_hdr)) + 2);
+
+	if (wi_cmd(sc, WI_CMD_TX|WI_RECLAIM, id)) {
+		printf(WI_PRT_FMT ": xmit failed\n", WI_PRT_ARG(sc));
+		return(EIO);
+	}
+
+	return(0);
+}
+
+STATIC void
+wi_stop(sc)
+	struct wi_softc		*sc;
+{
+	struct ifnet		*ifp;
+
+	if (sc->wi_gone)
+		return;
+
+	DPRINTF(WID_STOP, ("wi_stop: sc %p\n", sc));
+
+	ifp = &sc->arpcom.ac_if;
+
+	CSR_WRITE_2(sc, WI_INT_EN, 0);
+	wi_cmd(sc, WI_CMD_DISABLE|sc->wi_portnum, 0);
+
+	timeout_del(&sc->sc_timo);
+
+	ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE);
+
+	return;
+}
+
+STATIC void
+wi_watchdog(ifp)
+	struct ifnet		*ifp;
+{
+	struct wi_softc		*sc;
+
+	sc = ifp->if_softc;
+
+	printf(WI_PRT_FMT ": device timeout\n", WI_PRT_ARG(sc));
+
+	wi_init(sc);
+
+	ifp->if_oerrors++;
+
+	return;
+}
+
+STATIC void
+wi_shutdown(arg)
+	void			*arg;
+{
+	struct wi_softc		*sc;
+
+	sc = arg;
+	wi_stop(sc);
+
+	return;
+}