run(4), a driver for Ralink RT2700U/RT2800U/RT3000U USB 802.11agn devices.

the driver supports legacy 802.11abg modes only (no 802.11n yet.)
WPA works, with hardware encryption/decryption.

committed over an RT2800U (RT2870+RT2820).
enabled on i386 and amd64 GENERIC only for now.

thanks to Paul Lin at Ralink for letting us ship the firmware under an
appropriate license.

"man page looks ok" jmc@
"you should commit it" jsg@, ok deraadt@

3 files changed, 3183 insertions, 1 deletions

diff --git a/sys/dev/usb/files.usb b/sys/dev/usb/files.usb
index 9c51dcc824d..6e6518785c4 100644
--- a/sys/dev/usb/files.usb
+++ b/sys/dev/usb/files.usb
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.usb,v 1.79 2008/12/09 06:31:15 deraadt Exp $
+#	$OpenBSD: files.usb,v 1.80 2009/01/03 18:39:33 damien Exp $
 #	$NetBSD: files.usb,v 1.16 2000/02/14 20:29:54 augustss Exp $
 #
 # Config file and device description for machine-independent USB code.
@@ -292,6 +292,11 @@ device	rum: ether, ifnet, ifmedia, wlan, firmload
 attach	rum at uhub
 file	dev/usb/if_rum.c		rum
 
+# Ralink Technology RT2700U/RT2800U/RT3000U
+device	run: ether, ifnet, ifmedia, wlan, firmload
+attach	run at uhub
+file	dev/usb/if_run.c		run
+
 # Zydas ZD1211
 device	zyd: ether, ifnet, ifmedia, wlan, firmload
 attach	zyd at uhub
diff --git a/sys/dev/usb/if_run.c b/sys/dev/usb/if_run.c
new file mode 100644
index 00000000000..b1bde58f079
--- /dev/null
+++ b/sys/dev/usb/if_run.c
@@ -0,0 +1,2970 @@
+/*	$OpenBSD: if_run.c,v 1.1 2009/01/03 18:39:33 damien Exp $	*/
+
+/*-
+ * Copyright (c) 2008,2009 Damien Bergamini <damien.bergamini@free.fr>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*-
+ * Ralink Technology RT2700U/RT2800U/RT3000U chipset driver.
+ * http://www.ralinktech.com/
+ */
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/timeout.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+#include <machine/endian.h>
+#include <machine/intr.h>
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/if_ether.h>
+#include <netinet/ip.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_amrr.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usbdevs.h>
+
+#include <dev/ic/rt2860reg.h>		/* shared with ral(4) */
+#include <dev/usb/if_runvar.h>
+
+#include <dev/rndvar.h>
+
+#ifdef USB_DEBUG
+#define RUN_DEBUG
+#endif
+
+#define RUN_DEBUG
+
+#ifdef RUN_DEBUG
+#define DPRINTF(x)	do { if (run_debug) printf x; } while (0)
+#define DPRINTFN(n, x)	do { if (run_debug >= (n)) printf x; } while (0)
+int run_debug = 0;
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n, x)
+#endif
+
+/*
+ * PLEASE keep this list sorted as is; this is to ease the sync with the
+ * Ralink Linux driver.  If you want to add new entries, add them at the
+ * end of the list.
+ */
+#define USB_ID(v, p)	{ USB_VENDOR_##v, USB_PRODUCT_##v##_##p }
+static const struct usb_devno run_devs[] = {
+	/* Entries from the Ralink Linux driver. */
+	/* AUTOMATICALLY GENERATED, DO NOT EDIT BY HAND. */
+	USB_ID(RALINK,			RT2770),
+	USB_ID(RALINK,			RT2870),
+	USB_ID(RALINK,			RT3070),
+	USB_ID(RALINK,			RT3071),
+	USB_ID(RALINK,			RT3072),
+	USB_ID(ASUS,			RT2870_1),
+	USB_ID(ASUS,			RT2870_2),
+	USB_ID(ASUS,			RT2870_3),
+	USB_ID(SITECOMEU,		RT2870_1),
+	USB_ID(SITECOMEU,		RT2870_2),
+	USB_ID(SITECOMEU,		RT2870_3),
+	USB_ID(SITECOMEU,		RT3070),
+	USB_ID(SITECOMEU,		RT2870_4),
+	USB_ID(SITECOMEU,		RT2770),
+	USB_ID(CONCEPTRONIC2,		RT2870_1),
+	USB_ID(CONCEPTRONIC2,		RT2870_6),
+	USB_ID(PLANEX2,			RT2870),
+	USB_ID(PLANEX2,			RT3070),
+	USB_ID(DLINK2,			RT2870_1),
+	USB_ID(DLINK2,			RT2870_2),
+	USB_ID(DLINK,			RT2870),
+	USB_ID(DLINK,			RT3072),
+	USB_ID(CONCEPTRONIC2,		RT2870_2),
+	USB_ID(CONCEPTRONIC2,		RT2870_8),
+	USB_ID(BELKIN,			RT2870_1),
+	USB_ID(CONCEPTRONIC2,		RT2870_3),
+	USB_ID(CONCEPTRONIC2,		RT2870_5),
+	USB_ID(COREGA,			RT2870_1),
+	USB_ID(COREGA,			RT2870_2),
+	USB_ID(COREGA,			RT2870_3),
+	USB_ID(AMIT,			RT2870_1),
+	USB_ID(GIGABYTE,		RT2870_1),
+	USB_ID(GIGABYTE,		GNWB32L),
+	USB_ID(SPARKLAN,		RT2870_1),
+	USB_ID(ACCTON,			RT2870_1),
+	USB_ID(ACCTON,			RT2870_4),
+	USB_ID(ACCTON,			RT2870_5),
+	USB_ID(ACCTON,			RT2770),
+	USB_ID(ACCTON,			RT2870_3),
+	USB_ID(ACCTON,			RT3070),
+	USB_ID(ZCOM,			RT2870_1),
+	USB_ID(ZYXEL,			RT2870_1),
+	USB_ID(ZCOM,			RT2870_2),
+	USB_ID(SENAO,			RT2870_1),
+	USB_ID(SENAO,			RT2870_2),
+	USB_ID(SENAO,			RT3070),
+	USB_ID(PHILIPS,			RT2870),
+	USB_ID(CONCEPTRONIC2,		RT2870_4),
+	USB_ID(AZUREWAVE,		RT2870_1),
+	USB_ID(AZUREWAVE,		RT3070),
+	USB_ID(ACCTON,			RT2870_2),
+	USB_ID(AMIT2,			RT2870),
+	USB_ID(HAWKING,			RT2870_1),
+	USB_ID(HAWKING,			RT2870_2),
+	USB_ID(CYBERTAN,		RT2870),
+	USB_ID(UMEDIA,			RT2870_1),
+	USB_ID(BELKIN,			RT2870_2),
+	USB_ID(ABOCOM2,			RT2870_1),
+	USB_ID(CONCEPTRONIC2,		RT2870_7),
+	USB_ID(SAMSUNG2,		RT2870_1),
+	USB_ID(ABOCOM,			RT3070),
+	USB_ID(ABOCOM,			RT3071),
+	USB_ID(ABOCOM,			RT3072),
+	USB_ID(EDIMAX,			RT2870_1),
+	USB_ID(ZINWELL,			RT2870_1),
+	USB_ID(ZINWELL,			RT2870_2),
+	USB_ID(QUANTA,			RT3070),
+	USB_ID(LOGITEC,			RT2870_1),
+	USB_ID(LOGITEC,			RT2870_2),
+	USB_ID(LOGITEC,			RT2870_3),
+	USB_ID(AIRTIES,			RT3070)
+
+	/* Entries not in the Ralink Linux driver. */
+};
+
+int		run_match(struct device *, void *, void *);
+void		run_attach(struct device *, struct device *, void *);
+int		run_detach(struct device *, int);
+int		run_alloc_rx_ring(struct run_softc *);
+void		run_free_rx_ring(struct run_softc *);
+int		run_alloc_tx_ring(struct run_softc *, int);
+void		run_free_tx_ring(struct run_softc *, int);
+int		run_load_microcode(struct run_softc *);
+int		run_reset(struct run_softc *);
+int		run_read(struct run_softc *, uint16_t, uint32_t *);
+int		run_read_region_1(struct run_softc *, uint16_t, uint8_t *,
+		    int);
+int		run_write_2(struct run_softc *, uint16_t, uint16_t);
+int		run_write(struct run_softc *, uint16_t, uint32_t);
+int		run_write_region_1(struct run_softc *, uint16_t,
+		    const uint8_t *, int);
+int		run_set_region_4(struct run_softc *, uint16_t, uint32_t, int);
+int		run_efuse_read_2(struct run_softc *, uint16_t, uint16_t *);
+int		run_eeprom_read_2(struct run_softc *, uint16_t, uint16_t *);
+int		run_rt2870_rf_write(struct run_softc *, uint8_t, uint32_t);
+int		run_rt3070_rf_read(struct run_softc *, uint8_t, uint8_t *);
+int		run_rt3070_rf_write(struct run_softc *, uint8_t, uint8_t);
+int		run_bbp_read(struct run_softc *, uint8_t, uint8_t *);
+int		run_bbp_write(struct run_softc *, uint8_t, uint8_t);
+int		run_mcu_cmd(struct run_softc *, uint8_t, uint16_t);
+const char *	run_get_rf(int);
+int		run_read_eeprom(struct run_softc *);
+struct		ieee80211_node *run_node_alloc(struct ieee80211com *);
+int		run_media_change(struct ifnet *);
+void		run_next_scan(void *);
+void		run_task(void *);
+void		run_do_async(struct run_softc *, void (*)(struct run_softc *,
+		    void *), void *, int);
+int		run_newstate(struct ieee80211com *, enum ieee80211_state, int);
+void		run_newstate_cb(struct run_softc *, void *);
+void		run_updateedca(struct ieee80211com *);
+void		run_updateedca_cb(struct run_softc *, void *);
+int		run_set_key(struct ieee80211com *, struct ieee80211_node *,
+		    struct ieee80211_key *);
+void		run_set_key_cb(struct run_softc *, void *);
+void		run_delete_key(struct ieee80211com *, struct ieee80211_node *,
+		    struct ieee80211_key *);
+void		run_delete_key_cb(struct run_softc *, void *);
+void		run_calibrate_to(void *);
+void		run_calibrate_cb(struct run_softc *, void *);
+void		run_newassoc(struct ieee80211com *, struct ieee80211_node *,
+		    int);
+void		run_rx_frame(struct run_softc *, uint8_t *, int);
+void		run_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
+void		run_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
+int		run_tx(struct run_softc *, struct mbuf *,
+		    struct ieee80211_node *);
+void		run_start(struct ifnet *);
+void		run_watchdog(struct ifnet *);
+int		run_ioctl(struct ifnet *, u_long, caddr_t);
+void		run_select_chan_group(struct run_softc *, int);
+void		run_rt2870_set_chan(struct run_softc *, u_int);
+void		run_rt3070_set_chan(struct run_softc *, u_int);
+int		run_set_chan(struct run_softc *, struct ieee80211_channel *);
+void		run_enable_tsf_sync(struct run_softc *);
+void		run_enable_mrr(struct run_softc *);
+void		run_set_txpreamble(struct run_softc *);
+void		run_set_basicrates(struct run_softc *);
+void		run_set_leds(struct run_softc *, uint16_t);
+void		run_set_bssid(struct run_softc *, const uint8_t *);
+void		run_set_macaddr(struct run_softc *, const uint8_t *);
+void		run_updateslot(struct ieee80211com *);
+void		run_updateslot_cb(struct run_softc *, void *);
+#if NBPFILTER > 0
+int8_t		run_rssi2dbm(struct run_softc *, uint8_t, uint8_t);
+#endif
+int		run_bbp_init(struct run_softc *);
+int		run_rt3070_rf_init(struct run_softc *);
+int		run_rt3070_filter_calib(struct run_softc *, uint8_t, uint8_t,
+		    uint8_t *);
+int		run_txrx_enable(struct run_softc *);
+int		run_init(struct ifnet *);
+void		run_stop(struct ifnet *, int);
+
+struct cfdriver run_cd = {
+	NULL, "run", DV_IFNET
+};
+
+const struct cfattach run_ca = {
+	sizeof (struct run_softc), run_match, run_attach, run_detach
+};
+
+static const struct {
+	uint32_t	reg;
+	uint32_t	val;
+} rt2870_def_mac[] = {
+	RT2870_DEF_MAC
+};
+
+static const struct {
+	uint8_t	reg;
+	uint8_t	val;
+} rt2860_def_bbp[] = {
+	RT2860_DEF_BBP
+};
+
+static const struct rfprog {
+	uint8_t		chan;
+	uint32_t	r1, r2, r3, r4;
+} rt2860_rf2850[] = {
+	RT2860_RF2850
+};
+
+struct {
+	uint8_t	n, r, k;
+} run_rf3020_freqs[] = {
+	RT3070_RF3020
+};
+
+static const struct {
+	uint8_t	reg;
+	uint8_t	val;
+} rt3070_def_rf[] = {
+	RT3070_DEF_RF
+};
+
+int
+run_match(struct device *parent, void *match, void *aux)
+{
+	struct usb_attach_arg *uaa = aux;
+
+	if (uaa->iface != NULL)
+		return UMATCH_NONE;
+
+	return (usb_lookup(run_devs, uaa->vendor, uaa->product) != NULL) ?
+	    UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
+}
+
+void
+run_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct run_softc *sc = (struct run_softc *)self;
+	struct usb_attach_arg *uaa = aux;
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	usb_interface_descriptor_t *id;
+	usb_endpoint_descriptor_t *ed;
+	int i, nrx, ntx, ntries, error;
+
+	sc->sc_udev = uaa->device;
+
+	if (usbd_set_config_no(sc->sc_udev, 1, 0) != 0) {
+		printf("%s: could not set configuration no\n",
+		    sc->sc_dev.dv_xname);
+		return;
+	}
+
+	/* get the first interface handle */
+	error = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface);
+	if (error != 0) {
+		printf("%s: could not get interface handle\n",
+		    sc->sc_dev.dv_xname);
+		return;
+	}
+
+	/*
+	 * Find all bulk endpoints.  There are 7 bulk endpoints: 1 for RX
+	 * and 6 for TX (4 EDCAs + HCCA + Prio).
+	 */
+	nrx = ntx = 0;
+	id = usbd_get_interface_descriptor(sc->sc_iface);
+	for (i = 0; i < id->bNumEndpoints; i++) {
+		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
+		if (ed == NULL || UE_GET_XFERTYPE(ed->bmAttributes) != UE_BULK)
+			continue;
+
+		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN) {
+			sc->rxq.pipe_no = ed->bEndpointAddress;
+			nrx++;
+		} else if (ntx < 6) {
+			sc->txq[ntx].pipe_no = ed->bEndpointAddress;
+			sc->txq[ntx].pktsize =
+			    UE_GET_SIZE(UGETW(ed->wMaxPacketSize));
+			ntx++;
+		}
+	}
+	/* make sure we've got them all */
+	if (nrx < 1 || ntx < 6) {
+		printf("%s: missing endpoint\n", sc->sc_dev.dv_xname);
+		return;
+	}
+
+	usb_init_task(&sc->sc_task, run_task, sc);
+	timeout_set(&sc->scan_to, run_next_scan, sc);
+	timeout_set(&sc->calib_to, run_calibrate_to, sc);
+
+	sc->amrr.amrr_min_success_threshold =  1;
+	sc->amrr.amrr_max_success_threshold = 10;
+
+	/* wait for the chip to settle */
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (run_read(sc, RT2860_ASIC_VER_ID, &sc->mac_rev) != 0)
+			return;
+		if (sc->mac_rev != 0 && sc->mac_rev != 0xffffffff)
+			break;
+		DELAY(10);
+	}
+	if (ntries == 100) {
+		printf("%s: timeout waiting for NIC to initialize\n",
+		    sc->sc_dev.dv_xname);
+		return;
+	}
+
+	/* retrieve RF rev. no and various other things from EEPROM */
+	run_read_eeprom(sc);
+
+	printf("%s: MAC/BBP RT%04X (rev 0x%04X), RF %s (MIMO %dT%dR), "
+	    "address %s\n", sc->sc_dev.dv_xname, sc->mac_rev >> 16,
+	    sc->mac_rev & 0xffff, run_get_rf(sc->rf_rev), sc->ntxchains,
+	    sc->nrxchains, ether_sprintf(ic->ic_myaddr));
+
+	ic->ic_phytype = IEEE80211_T_OFDM;	/* not only, but not used */
+	ic->ic_opmode = IEEE80211_M_STA;	/* default to BSS mode */
+	ic->ic_state = IEEE80211_S_INIT;
+
+	/* set device capabilities */
+	ic->ic_caps =
+	    IEEE80211_C_MONITOR |	/* monitor mode supported */
+	    IEEE80211_C_SHPREAMBLE |	/* short preamble supported */
+	    IEEE80211_C_SHSLOT |	/* short slot time supported */
+	    IEEE80211_C_WEP |		/* WEP */
+	    IEEE80211_C_RSN;		/* WPA/RSN */
+
+	if (sc->rf_rev == RT2860_RF_2750 || sc->rf_rev == RT2860_RF_2850) {
+		/* set supported .11a rates */
+		ic->ic_sup_rates[IEEE80211_MODE_11A] =
+		    ieee80211_std_rateset_11a;
+
+		/* set supported .11a channels */
+		for (i = 14; i < nitems(rt2860_rf2850); i++) {
+			uint8_t chan = rt2860_rf2850[i].chan;
+			ic->ic_channels[chan].ic_freq =
+			    ieee80211_ieee2mhz(chan, IEEE80211_CHAN_5GHZ);
+			ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_A;
+		}
+	}
+
+	/* set supported .11b and .11g rates */
+	ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b;
+	ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g;
+
+	/* set supported .11b and .11g channels (1 through 14) */
+	for (i = 1; i <= 14; i++) {
+		ic->ic_channels[i].ic_freq =
+		    ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
+		ic->ic_channels[i].ic_flags =
+		    IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
+		    IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
+	}
+
+	ifp->if_softc = sc;
+	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
+	ifp->if_init = run_init;
+	ifp->if_ioctl = run_ioctl;
+	ifp->if_start = run_start;
+	ifp->if_watchdog = run_watchdog;
+	IFQ_SET_READY(&ifp->if_snd);
+	memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
+
+	if_attach(ifp);
+	ieee80211_ifattach(ifp);
+	ic->ic_node_alloc = run_node_alloc;
+	ic->ic_newassoc = run_newassoc;
+	ic->ic_updateslot = run_updateslot;
+	ic->ic_updateedca = run_updateedca;
+	ic->ic_set_key = run_set_key;
+	ic->ic_delete_key = run_delete_key;
+	/* override state transition machine */
+	sc->sc_newstate = ic->ic_newstate;
+	ic->ic_newstate = run_newstate;
+	ieee80211_media_init(ifp, run_media_change, ieee80211_media_status);
+
+#if NBPFILTER > 0
+	bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO,
+	    sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN);
+
+	sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
+	sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
+	sc->sc_rxtap.wr_ihdr.it_present = htole32(RUN_RX_RADIOTAP_PRESENT);
+
+	sc->sc_txtap_len = sizeof sc->sc_txtapu;
+	sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
+	sc->sc_txtap.wt_ihdr.it_present = htole32(RUN_TX_RADIOTAP_PRESENT);
+#endif
+
+	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, &sc->sc_dev);
+}
+
+int
+run_detach(struct device *self, int flags)
+{
+	struct run_softc *sc = (struct run_softc *)self;
+	struct ifnet *ifp = &sc->sc_ic.ic_if;
+	int qid, s;
+
+	s = splnet();
+
+	/* wait for all queued asynchronous commands to complete */
+	while (sc->cmdq.queued > 0)
+		tsleep(&sc->cmdq, 0, "cmdq", 0);
+
+	usb_rem_task(sc->sc_udev, &sc->sc_task);
+	timeout_del(&sc->scan_to);
+	timeout_del(&sc->calib_to);
+
+	if (ifp->if_flags != 0) {	/* if_attach() has been called */
+		ieee80211_ifdetach(ifp);
+		if_detach(ifp);
+	}
+
+	for (qid = 0; qid < 6; qid++)
+		run_free_tx_ring(sc, qid);
+	run_free_rx_ring(sc);
+
+	splx(s);
+
+	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, &sc->sc_dev);
+
+	return 0;
+}
+
+int
+run_alloc_rx_ring(struct run_softc *sc)
+{
+	struct run_rx_ring *rxq = &sc->rxq;
+	int i, error;
+
+	error = usbd_open_pipe(sc->sc_iface, rxq->pipe_no, 0, &rxq->pipeh);
+	if (error != 0)
+		goto fail;
+
+	for (i = 0; i < RUN_RX_RING_COUNT; i++) {
+		struct run_rx_data *data = &rxq->data[i];
+
+		data->sc = sc;	/* backpointer for callbacks */
+
+		data->xfer = usbd_alloc_xfer(sc->sc_udev);
+		if (data->xfer == NULL) {
+			error = ENOMEM;
+			goto fail;
+		}
+		data->buf = usbd_alloc_buffer(data->xfer, RUN_MAX_RXSZ);
+		if (data->buf == NULL) {
+			error = ENOMEM;
+			goto fail;
+		}
+	}
+	if (error != 0)
+fail:		run_free_rx_ring(sc);
+	return error;
+}
+
+void
+run_free_rx_ring(struct run_softc *sc)
+{
+	struct run_rx_ring *rxq = &sc->rxq;
+	int i;
+
+	if (rxq->pipeh != NULL) {
+		usbd_abort_pipe(rxq->pipeh);
+		usbd_close_pipe(rxq->pipeh);
+		rxq->pipeh = NULL;
+	}
+	for (i = 0; i < RUN_RX_RING_COUNT; i++) {
+		if (rxq->data[i].xfer != NULL)
+			usbd_free_xfer(rxq->data[i].xfer);
+		rxq->data[i].xfer = NULL;
+	}
+}
+
+int
+run_alloc_tx_ring(struct run_softc *sc, int qid)
+{
+	struct run_tx_ring *txq = &sc->txq[qid];
+	int i, error;
+
+	txq->cur = txq->queued = 0;
+
+	error = usbd_open_pipe(sc->sc_iface, txq->pipe_no, 0, &txq->pipeh);
+	if (error != 0)
+		goto fail;
+
+	for (i = 0; i < RUN_TX_RING_COUNT; i++) {
+		struct run_tx_data *data = &txq->data[i];
+
+		data->sc = sc;	/* backpointer for callbacks */
+		data->qid = qid;
+
+		data->xfer = usbd_alloc_xfer(sc->sc_udev);
+		if (data->xfer == NULL) {
+			error = ENOMEM;
+			goto fail;
+		}
+		data->buf = usbd_alloc_buffer(data->xfer, RUN_MAX_TXSZ);
+		if (data->buf == NULL) {
+			error = ENOMEM;
+			goto fail;
+		}
+		/* zeroize the TXD + TXWI part */
+		memset(data->buf, 0, sizeof (struct rt2870_txd) +
+		    sizeof (struct rt2860_txwi));
+	}
+	if (error != 0)
+fail:		run_free_tx_ring(sc, qid);
+	return error;
+}
+
+void
+run_free_tx_ring(struct run_softc *sc, int qid)
+{
+	struct run_tx_ring *txq = &sc->txq[qid];
+	int i;
+
+	if (txq->pipeh != NULL) {
+		usbd_abort_pipe(txq->pipeh);
+		usbd_close_pipe(txq->pipeh);
+		txq->pipeh = NULL;
+	}
+	for (i = 0; i < RUN_TX_RING_COUNT; i++) {
+		if (txq->data[i].xfer != NULL)
+			usbd_free_xfer(txq->data[i].xfer);
+		txq->data[i].xfer = NULL;
+	}
+}
+
+int
+run_load_microcode(struct run_softc *sc)
+{
+	usb_device_request_t req;
+	u_char *ucode, *base;
+	size_t size;
+	uint32_t tmp;
+	int ntries, error;
+
+	if ((error = loadfirmware("run-rt2870", &ucode, &size)) != 0) {
+		printf("%s: failed loadfirmware of file %s (error %d)\n",
+		    sc->sc_dev.dv_xname, "run-rt2870", error);
+		return error;
+	}
+	if (size != 8192) {
+		printf("%s: invalid firmware size (should be 8KB)\n",
+		    sc->sc_dev.dv_xname);
+		free(ucode, M_DEVBUF);
+		return EINVAL;
+	}
+
+	base = ucode;
+	/* RT3071/RT3072 use a different firmware */
+	if ((sc->mac_rev >> 16) != 0x2860 &&
+	    (sc->mac_rev >> 16) != 0x2872 &&
+	    (sc->mac_rev >> 16) != 0x3070)
+		base += 4096;
+
+	run_read(sc, RT2860_ASIC_VER_ID, &tmp);
+	/* write microcode image */
+	run_write_region_1(sc, RT2870_FW_BASE, base, 4096);
+	free(ucode, M_DEVBUF);
+	run_write(sc, RT2860_H2M_MAILBOX_CID, 0xffffffff);
+	run_write(sc, RT2860_H2M_MAILBOX_STATUS, 0xffffffff);
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = RT2870_RESET;
+	USETW(req.wValue, 8);
+	USETW(req.wIndex, 0);
+	USETW(req.wLength, 0);
+	if ((error = usbd_do_request(sc->sc_udev, &req, NULL)) != 0)
+		return error;
+
+	usbd_delay_ms(sc->sc_udev, 10);
+	run_write(sc, RT2860_H2M_MAILBOX, 0);
+	if ((error = run_mcu_cmd(sc, RT2860_MCU_CMD_BOOT, 0)) != 0)
+		return error;
+
+	/* wait until microcontroller is ready */
+	for (ntries = 0; ntries < 1000; ntries++) {
+		if ((error = run_read(sc, RT2860_SYS_CTRL, &tmp)) != 0)
+			return error;
+		if (tmp & RT2860_MCU_READY)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 1000) {
+		printf("%s: timeout waiting for MCU to initialize\n",
+		    sc->sc_dev.dv_xname);
+		return ETIMEDOUT;
+	}
+	DPRINTF(("microcode successfully loaded after %d tries\n", ntries));
+	return 0;
+}
+
+int
+run_reset(struct run_softc *sc)
+{
+	usb_device_request_t req;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = RT2870_RESET;
+	USETW(req.wValue, 1);
+	USETW(req.wIndex, 0);
+	USETW(req.wLength, 0);
+	return usbd_do_request(sc->sc_udev, &req, NULL);
+}
+
+int
+run_read(struct run_softc *sc, uint16_t reg, uint32_t *val)
+{
+	uint32_t tmp;
+	int error;
+
+	error = run_read_region_1(sc, reg, (uint8_t *)&tmp, sizeof tmp);
+	if (error == 0)
+		*val = letoh32(tmp);
+	else
+		*val = 0xffffffff;
+	return error;
+}
+
+int
+run_read_region_1(struct run_softc *sc, uint16_t reg, uint8_t *buf, int len)
+{
+	usb_device_request_t req;
+
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = RT2870_READ_REGION_1;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, len);
+	return usbd_do_request(sc->sc_udev, &req, buf);
+}
+
+int
+run_write_2(struct run_softc *sc, uint16_t reg, uint16_t val)
+{
+	usb_device_request_t req;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = RT2870_WRITE_2;
+	USETW(req.wValue, val);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, 0);
+	return usbd_do_request(sc->sc_udev, &req, NULL);
+}
+
+int
+run_write(struct run_softc *sc, uint16_t reg, uint32_t val)
+{
+	int error;
+
+	if ((error = run_write_2(sc, reg, val & 0xffff)) == 0)
+		error = run_write_2(sc, reg + 2, val >> 16);
+	return error;
+}
+
+int
+run_write_region_1(struct run_softc *sc, uint16_t reg, const uint8_t *buf,
+    int len)
+{
+#if 1
+	int i, error = 0;
+	/*
+	 * NB: the WRITE_REGION_1 command is not stable on RT2860.
+	 * We thus issue multiple WRITE_2 commands instead.
+	 */
+	KASSERT((len & 1) == 0);
+	for (i = 0; i < len && error == 0; i += 2)
+		error = run_write_2(sc, reg + i, buf[i] | buf[i + 1] << 8);
+	return error;
+#else
+	usb_device_request_t req;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = RT2870_WRITE_REGION_1;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, reg);
+	USETW(req.wLength, len);
+	return usbd_do_request(sc->sc_udev, &req, buf);
+#endif
+}
+
+int
+run_set_region_4(struct run_softc *sc, uint16_t reg, uint32_t val, int len)
+{
+	int i, error = 0;
+
+	KASSERT((len & 3) == 0);
+	for (i = 0; i < len && error == 0; i += 4)
+		error = run_write(sc, reg + i, val);
+	return error;
+}
+
+/* Read 16-bit from eFUSE ROM (RT3070 only.) */
+int
+run_efuse_read_2(struct run_softc *sc, uint16_t addr, uint16_t *val)
+{
+	uint32_t tmp;
+	uint16_t reg;
+	int error, ntries;
+
+	if ((error = run_read(sc, RT3070_EFUSE_CTRL, &tmp)) != 0)
+		return error;
+
+	addr *= 2;
+	tmp &= ~RT3070_EFSROM_MODE_MASK;
+	tmp |= (addr & 0xf) << RT3070_EFSROM_AIN_SHIFT | RT3070_EFSROM_KICK;
+	run_write(sc, RT3070_EFUSE_CTRL, tmp);
+	for (ntries = 0; ntries < 100; ntries++) {
+		if ((error = run_read(sc, RT3070_EFUSE_CTRL, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT3070_EFSROM_KICK))
+			break;
+		DELAY(2);
+	}
+	if (ntries == 100)
+		return ETIMEDOUT;
+
+	if ((tmp & RT3070_EFUSE_AOUT_MASK) == RT3070_EFUSE_AOUT_MASK) {
+		*val = 0xffff;	/* address not found */
+		return 0;
+	}
+	reg = RT3070_EFUSE_DATA3 - (addr & 0xc);
+	if ((error = run_read(sc, reg, &tmp)) != 0)
+		return error;
+
+	*val = tmp >> (8 * (addr & 0x3));
+	return 0;
+}
+
+int
+run_eeprom_read_2(struct run_softc *sc, uint16_t addr, uint16_t *val)
+{
+	usb_device_request_t req;
+	uint16_t tmp;
+	int error;
+
+	addr *= 2;
+	req.bmRequestType = UT_READ_VENDOR_DEVICE;
+	req.bRequest = RT2870_EEPROM_READ;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, addr);
+	USETW(req.wLength, sizeof tmp);
+	error = usbd_do_request(sc->sc_udev, &req, &tmp);
+	if (error == 0)
+		*val = letoh16(tmp);
+	else
+		*val = 0xffff;
+	return error;
+}
+
+static __inline int
+run_srom_read(struct run_softc *sc, uint16_t addr, uint16_t *val)
+{
+	/* either eFUSE ROM or EEPROM */
+	return sc->sc_srom_read(sc, addr, val);
+}
+
+int
+run_rt2870_rf_write(struct run_softc *sc, uint8_t reg, uint32_t val)
+{
+	uint32_t tmp;
+	int error, ntries;
+
+	for (ntries = 0; ntries < 10; ntries++) {
+		if ((error = run_read(sc, RT2860_RF_CSR_CFG0, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT2860_RF_REG_CTRL))
+			break;
+	}
+	if (ntries == 10)
+		return ETIMEDOUT;
+
+	/* RF registers are 24-bit on the RT2860 */
+	tmp = RT2860_RF_REG_CTRL | 24 << RT2860_RF_REG_WIDTH_SHIFT |
+	    (val & 0x3fffff) << 2 | (reg & 3);
+	return run_write(sc, RT2860_RF_CSR_CFG0, tmp);
+}
+
+int
+run_rt3070_rf_read(struct run_softc *sc, uint8_t reg, uint8_t *val)
+{
+	uint32_t tmp;
+	int error, ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if ((error = run_read(sc, RT3070_RF_CSR_CFG, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT3070_RF_KICK))
+			break;
+	}
+	if (ntries == 100)
+		return ETIMEDOUT;
+
+	tmp = RT3070_RF_KICK | reg << 8;
+	if ((error = run_write(sc, RT3070_RF_CSR_CFG, tmp)) != 0)
+		return error;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if ((error = run_read(sc, RT3070_RF_CSR_CFG, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT3070_RF_KICK))
+			break;
+	}
+	if (ntries == 100)
+		return ETIMEDOUT;
+
+	*val = tmp & 0xff;
+	return 0;
+}
+
+int
+run_rt3070_rf_write(struct run_softc *sc, uint8_t reg, uint8_t val)
+{
+	uint32_t tmp;
+	int error, ntries;
+
+	for (ntries = 0; ntries < 10; ntries++) {
+		if ((error = run_read(sc, RT3070_RF_CSR_CFG, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT3070_RF_KICK))
+			break;
+	}
+	if (ntries == 10)
+		return ETIMEDOUT;
+
+	tmp |= RT3070_RF_WRITE | RT3070_RF_KICK | reg << 8 | val;
+	return run_write(sc, RT3070_RF_CSR_CFG, tmp);
+}
+
+int
+run_bbp_read(struct run_softc *sc, uint8_t reg, uint8_t *val)
+{
+	uint32_t tmp;
+	int ntries, error;
+
+	for (ntries = 0; ntries < 10; ntries++) {
+		if ((error = run_read(sc, RT2860_BBP_CSR_CFG, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT2860_BBP_CSR_KICK))
+			break;
+	}
+	if (ntries == 10)
+		return ETIMEDOUT;
+
+	tmp = RT2860_BBP_CSR_READ | RT2860_BBP_CSR_KICK | reg << 8;
+	if ((error = run_write(sc, RT2860_BBP_CSR_CFG, tmp)) != 0)
+		return error;
+
+	for (ntries = 0; ntries < 10; ntries++) {
+		if ((error = run_read(sc, RT2860_BBP_CSR_CFG, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT2860_BBP_CSR_KICK))
+			break;
+	}
+	if (ntries == 10)
+		return ETIMEDOUT;
+
+	*val = tmp & 0xff;
+	return 0;
+}
+
+int
+run_bbp_write(struct run_softc *sc, uint8_t reg, uint8_t val)
+{
+	uint32_t tmp;
+	int ntries, error;
+
+	for (ntries = 0; ntries < 10; ntries++) {
+		if ((error = run_read(sc, RT2860_BBP_CSR_CFG, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT2860_BBP_CSR_KICK))
+			break;
+	}
+	if (ntries == 10)
+		return ETIMEDOUT;
+
+	tmp = RT2860_BBP_CSR_KICK | reg << 8 | val;
+	return run_write(sc, RT2860_BBP_CSR_CFG, tmp);
+}
+
+/*
+ * Send a command to the 8051 microcontroller unit.
+ */
+int
+run_mcu_cmd(struct run_softc *sc, uint8_t cmd, uint16_t arg)
+{
+	uint32_t tmp;
+	int error, ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if ((error = run_read(sc, RT2860_H2M_MAILBOX, &tmp)) != 0)
+			return error;
+		if (!(tmp & RT2860_H2M_BUSY))
+			break;
+	}
+	if (ntries == 100)
+		return ETIMEDOUT;
+
+	tmp |= RT2860_H2M_BUSY | RT2860_TOKEN_NO_INTR << 16 | arg;
+	if ((error = run_write(sc, RT2860_H2M_MAILBOX, tmp)) == 0)
+		error = run_write(sc, RT2860_HOST_CMD, cmd);
+	return error;
+}
+
+/*
+ * Add `delta' (signed) to each 4-bit sub-word of a 32-bit word.
+ * Used to adjust per-rate Tx power registers.
+ */
+static __inline uint32_t
+b4inc(uint32_t b32, int8_t delta)
+{
+	int8_t i, b4;
+
+	for (i = 0; i < 8; i++) {
+		b4 = b32 & 0xf;
+		b4 += delta;
+		if (b4 < 0)
+			b4 = 0;
+		else if (b4 > 0xf)
+			b4 = 0xf;
+		b32 = b32 >> 4 | b4 << 28;
+	}
+	return b32;
+}
+
+const char *
+run_get_rf(int rev)
+{
+	switch (rev) {
+	case RT2860_RF_2820:	return "RT2820";
+	case RT2860_RF_2850:	return "RT2850";
+	case RT2860_RF_2720:	return "RT2720";
+	case RT2860_RF_2750:	return "RT2750";
+	case RT3070_RF_3020:	return "RT3020";
+	case RT3070_RF_2020:	return "RT2020";
+	case RT3070_RF_3021:	return "RT3021";
+	case RT3070_RF_3022:	return "RT3022";
+	}
+	return "unknown";
+}
+
+int
+run_read_eeprom(struct run_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	int8_t delta_2ghz, delta_5ghz;
+	uint32_t tmp;
+	uint16_t val;
+	int ridx, ant, i;
+
+	/* check whether the ROM is eFUSE ROM or EEPROM */
+	sc->sc_srom_read = run_eeprom_read_2;
+	if ((sc->mac_rev & 0xfff00000) >= 0x30700000) {
+		run_read(sc, RT3070_EFUSE_CTRL, &tmp);
+		if (tmp & RT3070_SEL_EFUSE)
+			sc->sc_srom_read = run_efuse_read_2;
+	}
+
+	/* read SROM version */
+	run_srom_read(sc, RT2860_EEPROM_VERSION, &val);
+	DPRINTF(("EEPROM rev=%d, FAE=%d\n", val & 0xff, val >> 8));
+
+	/* read MAC address */
+	run_srom_read(sc, RT2860_EEPROM_MAC01, &val);
+	ic->ic_myaddr[0] = val & 0xff;
+	ic->ic_myaddr[1] = val >> 8;
+	run_srom_read(sc, RT2860_EEPROM_MAC23, &val);
+	ic->ic_myaddr[2] = val & 0xff;
+	ic->ic_myaddr[3] = val >> 8;
+	run_srom_read(sc, RT2860_EEPROM_MAC45, &val);
+	ic->ic_myaddr[4] = val & 0xff;
+	ic->ic_myaddr[5] = val >> 8;
+
+	/* read default BBP settings */
+	for (i = 0; i < 8; i++) {
+		run_srom_read(sc, RT2860_EEPROM_BBP_BASE + i, &val);
+		sc->bbp[i].val = val & 0xff;
+		sc->bbp[i].reg = val >> 8;
+		DPRINTF(("BBP%d=0x%02x\n", sc->bbp[i].reg, sc->bbp[i].val));
+	}
+
+	/* read RF frequency offset from EEPROM */
+	run_srom_read(sc, RT2860_EEPROM_FREQ_LEDS, &val);
+	sc->freq = ((val & 0xff) != 0xff) ? val & 0xff : 0;
+	DPRINTF(("EEPROM freq offset %d\n", sc->freq & 0xff));
+
+	if ((sc->leds = val >> 8) != 0xff) {
+		/* read LEDs operating mode */
+		run_srom_read(sc, RT2860_EEPROM_LED1, &sc->led[0]);
+		run_srom_read(sc, RT2860_EEPROM_LED2, &sc->led[1]);
+		run_srom_read(sc, RT2860_EEPROM_LED3, &sc->led[2]);
+	} else {
+		/* broken EEPROM, use default settings */
+		sc->leds = 0x01;
+		sc->led[0] = 0x5555;
+		sc->led[1] = 0x2221;
+		sc->led[2] = 0xa9f8;
+	}
+	DPRINTF(("EEPROM LED mode=0x%02x, LEDs=0x%04x/0x%04x/0x%04x\n",
+	    sc->leds, sc->led[0], sc->led[1], sc->led[2]));
+
+	/* read RF information */
+	run_srom_read(sc, RT2860_EEPROM_ANTENNA, &val);
+	if (val == 0xffff) {
+		/* broken EEPROM, default to RF2870 1T2R */
+		DPRINTF(("invalid EEPROM antenna info, using default\n"));
+		sc->rf_rev = RT2860_RF_2820;
+		sc->ntxchains = 1;
+		sc->nrxchains = 2;
+	} else {
+		sc->rf_rev = (val >> 8) & 0xf;
+		sc->ntxchains = (val >> 4) & 0xf;
+		sc->nrxchains = val & 0xf;
+	}
+	DPRINTF(("EEPROM RF rev=0x%02x chains=%dT%dR\n",
+	    sc->rf_rev, sc->ntxchains, sc->nrxchains));
+
+	/* check if RF supports automatic Tx access gain control */
+	run_srom_read(sc, RT2860_EEPROM_CONFIG, &val);
+	DPRINTF(("EEPROM CFG 0x%04x\n", val));
+	if ((val & 0xff) != 0xff) {
+		sc->ext_5ghz_lna = (val >> 3) & 1;
+		sc->ext_2ghz_lna = (val >> 2) & 1;
+		sc->calib_2ghz = sc->calib_5ghz = (val >> 1) & 1;
+	}
+
+	/* read power settings for 2GHz channels */
+	for (i = 0; i < 14; i += 2) {
+		run_srom_read(sc, RT2860_EEPROM_PWR2GHZ_BASE1 + i / 2, &val);
+		sc->txpow1[i + 0] = (int8_t)(val & 0xff);
+		sc->txpow1[i + 1] = (int8_t)(val >> 8);
+
+		run_srom_read(sc, RT2860_EEPROM_PWR2GHZ_BASE2 + i / 2, &val);
+		sc->txpow2[i + 0] = (int8_t)(val & 0xff);
+		sc->txpow2[i + 1] = (int8_t)(val >> 8);
+	}
+	/* fix broken Tx power entries */
+	for (i = 0; i < 14; i++) {
+		if (sc->txpow1[i] < 0 || sc->txpow1[i] > 31)
+			sc->txpow1[i] = 5;
+		if (sc->txpow2[i] < 0 || sc->txpow2[i] > 31)
+			sc->txpow2[i] = 5;
+		DPRINTF(("chan %d: power1=%d, power2=%d\n",
+		    rt2860_rf2850[i].chan, sc->txpow1[i], sc->txpow2[i]));
+	}
+	/* read power settings for 5GHz channels */
+	for (i = 0; i < 36; i += 2) {
+		run_srom_read(sc, RT2860_EEPROM_PWR5GHZ_BASE1 + i / 2, &val);
+		sc->txpow1[i + 14] = (int8_t)(val & 0xff);
+		sc->txpow1[i + 15] = (int8_t)(val >> 8);
+
+		run_srom_read(sc, RT2860_EEPROM_PWR5GHZ_BASE2 + i / 2, &val);
+		sc->txpow2[i + 14] = (int8_t)(val & 0xff);
+		sc->txpow2[i + 15] = (int8_t)(val >> 8);
+	}
+	/* fix broken Tx power entries */
+	for (i = 0; i < 36; i++) {
+		if (sc->txpow1[14 + i] < -7 || sc->txpow1[14 + i] > 15)
+			sc->txpow1[14 + i] = 5;
+		if (sc->txpow2[14 + i] < -7 || sc->txpow2[14 + i] > 15)
+			sc->txpow2[14 + i] = 5;
+		DPRINTF(("chan %d: power1=%d, power2=%d\n",
+		    rt2860_rf2850[14 + i].chan, sc->txpow1[14 + i],
+		    sc->txpow2[14 + i]));
+	}
+
+	/* read Tx power compensation for each Tx rate */
+	run_srom_read(sc, RT2860_EEPROM_DELTAPWR, &val);
+	delta_2ghz = delta_5ghz = 0;
+	if ((val & 0xff) != 0xff && (val & 0x80)) {
+		delta_2ghz = val & 0xf;
+		if (!(val & 0x40))	/* negative number */
+			delta_2ghz = -delta_2ghz;
+	}
+	val >>= 8;
+	if ((val & 0xff) != 0xff && (val & 0x80)) {
+		delta_5ghz = val & 0xf;
+		if (!(val & 0x40))	/* negative number */
+			delta_5ghz = -delta_5ghz;
+	}
+	DPRINTF(("power compensation=%d (2GHz), %d (5GHz)\n",
+	    delta_2ghz, delta_5ghz));
+
+	for (ridx = 0; ridx < 5; ridx++) {
+		uint32_t reg;
+
+		run_srom_read(sc, RT2860_EEPROM_RPWR + ridx, &val);
+		reg = (uint32_t)val << 16;
+		run_srom_read(sc, RT2860_EEPROM_RPWR + ridx + 1, &val);
+		reg |= val;
+
+		sc->txpow20mhz[ridx] = reg;
+		sc->txpow40mhz_2ghz[ridx] = b4inc(reg, delta_2ghz);
+		sc->txpow40mhz_5ghz[ridx] = b4inc(reg, delta_5ghz);
+
+		DPRINTF(("ridx %d: power 20MHz=0x%08x, 40MHz/2GHz=0x%08x, "
+		    "40MHz/5GHz=0x%08x\n", ridx, sc->txpow20mhz[ridx],
+		    sc->txpow40mhz_2ghz[ridx], sc->txpow40mhz_5ghz[ridx]));
+	}
+
+
+	/* read RSSI offsets and LNA gains from EEPROM */
+	run_srom_read(sc, RT2860_EEPROM_RSSI1_2GHZ, &val);
+	sc->rssi_2ghz[0] = val & 0xff;	/* Ant A */
+	sc->rssi_2ghz[1] = val >> 8;	/* Ant B */
+	run_srom_read(sc, RT2860_EEPROM_RSSI2_2GHZ, &val);
+	sc->rssi_2ghz[2] = val & 0xff;	/* Ant C */
+	sc->lna[2] = val >> 8;		/* channel group 2 */
+
+	run_srom_read(sc, RT2860_EEPROM_RSSI1_5GHZ, &val);
+	sc->rssi_5ghz[0] = val & 0xff;	/* Ant A */
+	sc->rssi_5ghz[1] = val >> 8;	/* Ant B */
+	run_srom_read(sc, RT2860_EEPROM_RSSI2_5GHZ, &val);
+	sc->rssi_5ghz[2] = val & 0xff;	/* Ant C */
+	sc->lna[3] = val >> 8;		/* channel group 3 */
+
+	run_srom_read(sc, RT2860_EEPROM_LNA, &val);
+	sc->lna[0] = val & 0xff;	/* channel group 0 */
+	sc->lna[1] = val >> 8;		/* channel group 1 */
+
+	/* fix broken 5GHz LNA entries */
+	if (sc->lna[2] == 0 || sc->lna[2] == 0xff) {
+		DPRINTF(("invalid LNA for channel group %d\n", 2));
+		sc->lna[2] = sc->lna[1];
+	}
+	if (sc->lna[3] == 0 || sc->lna[3] == 0xff) {
+		DPRINTF(("invalid LNA for channel group %d\n", 3));
+		sc->lna[3] = sc->lna[1];
+	}
+
+	/* fix broken RSSI offset entries */
+	for (ant = 0; ant < 3; ant++) {
+		if (sc->rssi_2ghz[ant] < -10 || sc->rssi_2ghz[ant] > 10) {
+			DPRINTF(("invalid RSSI%d offset: %d (2GHz)\n",
+			    ant + 1, sc->rssi_2ghz[ant]));
+			sc->rssi_2ghz[ant] = 0;
+		}
+		if (sc->rssi_5ghz[ant] < -10 || sc->rssi_5ghz[ant] > 10) {
+			DPRINTF(("invalid RSSI%d offset: %d (5GHz)\n",
+			    ant + 1, sc->rssi_5ghz[ant]));
+			sc->rssi_5ghz[ant] = 0;
+		}
+	}
+	return 0;
+}
+
+struct ieee80211_node *
+run_node_alloc(struct ieee80211com *ic)
+{
+	return malloc(sizeof (struct run_node), M_DEVBUF, M_NOWAIT | M_ZERO);
+}
+
+int
+run_media_change(struct ifnet *ifp)
+{
+	struct run_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint8_t rate, ridx;
+	int error;
+
+	error = ieee80211_media_change(ifp);
+	if (error != ENETRESET)
+		return error;
+
+	if (ic->ic_fixed_rate != -1) {
+		rate = ic->ic_sup_rates[ic->ic_curmode].
+		    rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL;
+		for (ridx = 0; ridx <= RT2860_RIDX_MAX; ridx++)
+			if (rt2860_rates[ridx].rate == rate)
+				break;
+		sc->fixed_ridx = ridx;
+	}
+
+	if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
+		run_init(ifp);
+
+	return 0;
+}
+
+void
+run_next_scan(void *arg)
+{
+	struct run_softc *sc = arg;
+
+	if (sc->sc_ic.ic_state == IEEE80211_S_SCAN)
+		ieee80211_next_scan(&sc->sc_ic.ic_if);
+}
+
+void
+run_task(void *arg)
+{
+	struct run_softc *sc = arg;
+	struct run_host_cmd_ring *ring = &sc->cmdq;
+	struct run_host_cmd *cmd;
+	int s;
+
+	/* process host commands */
+	s = splusb();
+	while (ring->next != ring->cur) {
+		cmd = &ring->cmd[ring->next];
+		/* callback */
+		splx(s);
+		cmd->cb(sc, cmd->data);
+		s = splusb();
+		ring->queued--;
+		ring->next = (ring->next + 1) % RUN_HOST_CMD_RING_COUNT;
+	}
+	wakeup(ring);
+	splx(s);
+}
+
+void
+run_do_async(struct run_softc *sc, void (*cb)(struct run_softc *, void *),
+    void *arg, int len)
+{
+	struct run_host_cmd_ring *ring = &sc->cmdq;
+	struct run_host_cmd *cmd;
+	int s;
+
+	s = splusb();
+	cmd = &ring->cmd[ring->cur];
+	cmd->cb = cb;
+	KASSERT(len <= sizeof (cmd->data));
+	memcpy(cmd->data, arg, len);
+	ring->cur = (ring->cur + 1) % RUN_HOST_CMD_RING_COUNT;
+
+	/* if there is no pending command already, schedule a task */
+	if (++ring->queued == 1)
+		usb_add_task(sc->sc_udev, &sc->sc_task);
+	splx(s);
+}
+
+int
+run_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
+{
+	struct run_softc *sc = ic->ic_softc;
+	struct run_cmd_newstate cmd;
+
+	/* do it in a process context */
+	cmd.state = nstate;
+	cmd.arg = arg;
+	run_do_async(sc, run_newstate_cb, &cmd, sizeof cmd);
+	return 0;
+}
+
+void
+run_newstate_cb(struct run_softc *sc, void *arg)
+{
+	struct run_cmd_newstate *cmd = arg;
+	struct ieee80211com *ic = &sc->sc_ic;
+	enum ieee80211_state ostate;
+	struct ieee80211_node *ni;
+	uint32_t tmp, sta[3];
+	uint8_t wcid;
+	int s;
+
+	s = splnet();
+	ostate = ic->ic_state;
+
+	if (ostate == IEEE80211_S_RUN) {
+		/* turn link LED off */
+		run_set_leds(sc, RT2860_LED_RADIO);
+	}
+
+	switch (cmd->state) {
+	case IEEE80211_S_INIT:
+		if (ostate == IEEE80211_S_RUN) {
+			/* abort TSF synchronization */
+			run_read(sc, RT2860_BCN_TIME_CFG, &tmp);
+			run_write(sc, RT2860_BCN_TIME_CFG,
+			    tmp & ~(RT2860_BCN_TX_EN | RT2860_TSF_TIMER_EN |
+			    RT2860_TBTT_TIMER_EN));
+		}
+		break;
+
+	case IEEE80211_S_SCAN:
+		run_set_chan(sc, ic->ic_bss->ni_chan);
+		timeout_add_msec(&sc->scan_to, 200);
+		break;
+
+	case IEEE80211_S_AUTH:
+	case IEEE80211_S_ASSOC:
+		run_set_chan(sc, ic->ic_bss->ni_chan);
+		break;
+
+	case IEEE80211_S_RUN:
+		run_set_chan(sc, ic->ic_bss->ni_chan);
+
+		ni = ic->ic_bss;
+
+		if (ic->ic_opmode != IEEE80211_M_MONITOR) {
+			run_updateslot(ic);
+			run_enable_mrr(sc);
+			run_set_txpreamble(sc);
+			run_set_basicrates(sc);
+			run_set_bssid(sc, ni->ni_bssid);
+		}
+		if (ic->ic_opmode == IEEE80211_M_STA) {
+			/* add BSS entry to the WCID table */
+			wcid = RUN_AID2WCID(ni->ni_associd);
+			run_write_region_1(sc, RT2860_WCID_ENTRY(wcid),
+			    ni->ni_macaddr, IEEE80211_ADDR_LEN);
+
+			/* fake a join to init the tx rate */
+			run_newassoc(ic, ni, 1);
+		}
+		if (ic->ic_opmode != IEEE80211_M_MONITOR) {
+			run_enable_tsf_sync(sc);
+
+			/* clear statistic registers used by AMRR */
+			run_read_region_1(sc, RT2860_TX_STA_CNT0,
+			    (uint8_t *)sta, sizeof sta);
+			/* start calibration timer */
+			timeout_add_sec(&sc->calib_to, 1);
+		}
+
+		/* turn link LED on */
+		run_set_leds(sc, RT2860_LED_RADIO |
+		    (IEEE80211_IS_CHAN_2GHZ(ic->ic_bss->ni_chan) ?
+		     RT2860_LED_LINK_2GHZ : RT2860_LED_LINK_5GHZ));
+		break;
+	}
+	(void)sc->sc_newstate(ic, cmd->state, cmd->arg);
+	splx(s);
+}
+
+void
+run_updateedca(struct ieee80211com *ic)
+{
+	/* do it in a process context */
+	run_do_async(ic->ic_softc, run_updateedca_cb, NULL, 0);
+}
+
+/* ARGSUSED */
+void
+run_updateedca_cb(struct run_softc *sc, void *arg)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	int s, aci;
+
+	s = splnet();
+	/* update MAC TX configuration registers */
+	for (aci = 0; aci < EDCA_NUM_AC; aci++) {
+		run_write(sc, RT2860_EDCA_AC_CFG(aci),
+		    ic->ic_edca_ac[aci].ac_ecwmax << 16 |
+		    ic->ic_edca_ac[aci].ac_ecwmin << 12 |
+		    ic->ic_edca_ac[aci].ac_aifsn  <<  8 |
+		    ic->ic_edca_ac[aci].ac_txoplimit);
+	}
+
+	/* update SCH/DMA registers too */
+	run_write(sc, RT2860_WMM_AIFSN_CFG,
+	    ic->ic_edca_ac[EDCA_AC_VO].ac_aifsn  << 12 |
+	    ic->ic_edca_ac[EDCA_AC_VI].ac_aifsn  <<  8 |
+	    ic->ic_edca_ac[EDCA_AC_BK].ac_aifsn  <<  4 |
+	    ic->ic_edca_ac[EDCA_AC_BE].ac_aifsn);
+	run_write(sc, RT2860_WMM_CWMIN_CFG,
+	    ic->ic_edca_ac[EDCA_AC_VO].ac_ecwmin << 12 |
+	    ic->ic_edca_ac[EDCA_AC_VI].ac_ecwmin <<  8 |
+	    ic->ic_edca_ac[EDCA_AC_BK].ac_ecwmin <<  4 |
+	    ic->ic_edca_ac[EDCA_AC_BE].ac_ecwmin);
+	run_write(sc, RT2860_WMM_CWMAX_CFG,
+	    ic->ic_edca_ac[EDCA_AC_VO].ac_ecwmax << 12 |
+	    ic->ic_edca_ac[EDCA_AC_VI].ac_ecwmax <<  8 |
+	    ic->ic_edca_ac[EDCA_AC_BK].ac_ecwmax <<  4 |
+	    ic->ic_edca_ac[EDCA_AC_BE].ac_ecwmax);
+	run_write(sc, RT2860_WMM_TXOP0_CFG,
+	    ic->ic_edca_ac[EDCA_AC_BK].ac_txoplimit << 16 |
+	    ic->ic_edca_ac[EDCA_AC_BE].ac_txoplimit);
+	run_write(sc, RT2860_WMM_TXOP1_CFG,
+	    ic->ic_edca_ac[EDCA_AC_VO].ac_txoplimit << 16 |
+	    ic->ic_edca_ac[EDCA_AC_VI].ac_txoplimit);
+	splx(s);
+}
+
+int
+run_set_key(struct ieee80211com *ic, struct ieee80211_node *ni,
+    struct ieee80211_key *k)
+{
+	struct run_softc *sc = ic->ic_softc;
+	struct run_cmd_key cmd;
+
+	/* do it in a process context */
+	cmd.key = *k;
+	cmd.associd = ni->ni_associd;
+	run_do_async(sc, run_set_key_cb, &cmd, sizeof cmd);
+	return 0;
+}
+
+void
+run_set_key_cb(struct run_softc *sc, void *arg)
+{
+	struct run_cmd_key *cmd = arg;
+	struct ieee80211_key *k = &cmd->key;
+	uint32_t attr;
+	uint16_t base;
+	uint8_t mode, wcid, iv[8];
+
+	/* map net80211 cipher to RT2860 security mode */
+	switch (k->k_cipher) {
+	case IEEE80211_CIPHER_WEP40:
+		mode = RT2860_MODE_WEP40;
+		break;
+	case IEEE80211_CIPHER_WEP104:
+		mode = RT2860_MODE_WEP104;
+		break;
+	case IEEE80211_CIPHER_TKIP:
+		mode = RT2860_MODE_TKIP;
+		break;
+	case IEEE80211_CIPHER_CCMP:
+		mode = RT2860_MODE_AES_CCMP;
+		break;
+	default:
+		return;
+	}
+
+	if (k->k_flags & IEEE80211_KEY_GROUP) {
+		wcid = 0;	/* NB: update WCID0 for group keys */
+		base = RT2860_SKEY(0, k->k_id);
+	} else {
+		wcid = RUN_AID2WCID(cmd->associd);
+		base = RT2860_PKEY(wcid);
+	}
+
+	if (k->k_cipher == IEEE80211_CIPHER_TKIP) {
+		run_write_region_1(sc, base, k->k_key, 16);
+		run_write_region_1(sc, base + 16, &k->k_key[24], 8);
+		run_write_region_1(sc, base + 24, &k->k_key[16], 8);
+	} else
+		run_write_region_1(sc, base, k->k_key, k->k_len);
+
+	if (!(k->k_flags & IEEE80211_KEY_GROUP) ||
+	    (k->k_flags & IEEE80211_KEY_TX)) {
+		/* set initial packet number in IV+EIV */
+		if (k->k_cipher == IEEE80211_CIPHER_WEP40 ||
+		    k->k_cipher == IEEE80211_CIPHER_WEP104) {
+			uint32_t val = arc4random();
+			/* skip weak IVs from Fluhrer/Mantin/Shamir */
+			if (val >= 0x03ff00 && (val & 0xf8ff00) == 0x00ff00)
+				val += 0x000100;
+			iv[0] = val;
+			iv[1] = val >> 8;
+			iv[2] = val >> 16;
+			iv[3] = k->k_id << 6;
+			iv[4] = iv[5] = iv[6] = iv[7] = 0;
+		} else {
+			if (k->k_cipher == IEEE80211_CIPHER_TKIP) {
+				iv[0] = k->k_tsc >> 8;
+				iv[1] = (iv[0] | 0x20) & 0x7f;
+				iv[2] = k->k_tsc;
+			} else /* CCMP */ {
+				iv[0] = k->k_tsc;
+				iv[1] = k->k_tsc >> 8;
+				iv[2] = 0;
+			}
+			iv[3] = k->k_id << 6 | IEEE80211_WEP_EXTIV;
+			iv[4] = k->k_tsc >> 16;
+			iv[5] = k->k_tsc >> 24;
+			iv[6] = k->k_tsc >> 32;
+			iv[7] = k->k_tsc >> 40;
+		}
+		run_write_region_1(sc, RT2860_IVEIV(wcid), iv, 8);
+	}
+
+	if (k->k_flags & IEEE80211_KEY_GROUP) {
+		/* install group key */
+		run_read(sc, RT2860_SKEY_MODE_0_7, &attr);
+		attr &= ~(0xf << (k->k_id * 4));
+		attr |= mode << (k->k_id * 4);
+		run_write(sc, RT2860_SKEY_MODE_0_7, attr);
+	} else {
+		/* install pairwise key */
+		run_read(sc, RT2860_WCID_ATTR(wcid), &attr);
+		attr = (attr & ~0xf) | (mode << 1) | RT2860_RX_PKEY_EN;
+		run_write(sc, RT2860_WCID_ATTR(wcid), attr);
+	}
+}
+
+void
+run_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni,
+    struct ieee80211_key *k)
+{
+	struct run_softc *sc = ic->ic_softc;
+	struct run_cmd_key cmd;
+
+	if (ic->ic_state != IEEE80211_S_RUN)
+		return;	/* nothing to do */
+
+	/* do it in a process context */
+	cmd.key = *k;
+	cmd.associd = ni->ni_associd;
+	run_do_async(sc, run_delete_key_cb, &cmd, sizeof cmd);
+}
+
+void
+run_delete_key_cb(struct run_softc *sc, void *arg)
+{
+	struct run_cmd_key *cmd = arg;
+	struct ieee80211_key *k = &cmd->key;
+	uint32_t attr;
+	uint8_t wcid;
+
+	if (k->k_flags & IEEE80211_KEY_GROUP) {
+		/* remove group key */
+		run_read(sc, RT2860_SKEY_MODE_0_7, &attr);
+		attr &= ~(0xf << (k->k_id * 4));
+		run_write(sc, RT2860_SKEY_MODE_0_7, attr);
+
+	} else {
+		/* remove pairwise key */
+		wcid = RUN_AID2WCID(cmd->associd);
+		run_read(sc, RT2860_WCID_ATTR(wcid), &attr);
+		attr &= ~0xf;
+		run_write(sc, RT2860_WCID_ATTR(wcid), attr);
+	}
+}
+
+void
+run_calibrate_to(void *arg)
+{
+	/* do it in a process context */
+	run_do_async(arg, run_calibrate_cb, NULL, 0);
+	/* next timeout will be rescheduled in the calibration task */
+}
+
+/* ARGSUSED */
+void
+run_calibrate_cb(struct run_softc *sc, void *arg)
+{
+	struct ifnet *ifp = &sc->sc_ic.ic_if;
+	uint32_t sta[3];
+	int s, error;
+
+	/* read statistic counters (clear on read) and update AMRR state */
+	error = run_read_region_1(sc, RT2860_TX_STA_CNT0, (uint8_t *)sta,
+	    sizeof sta);
+	if (error != 0)
+		goto skip;
+
+	DPRINTF(("retrycnt=%d txcnt=%d failcnt=%d\n",
+	    letoh32(sta[1]) >> 16, letoh32(sta[1]) & 0xffff,
+	    letoh32(sta[0]) & 0xffff));
+
+	s = splnet();
+	/* count failed TX as errors */
+	ifp->if_oerrors += letoh32(sta[0]) & 0xffff;
+
+	sc->amn.amn_retrycnt =
+	    (letoh32(sta[0]) & 0xffff) +	/* failed TX count */
+	    (letoh32(sta[1]) >> 16);		/* TX retransmission count */
+
+	sc->amn.amn_txcnt =
+	    sc->amn.amn_retrycnt +
+	    (letoh32(sta[1]) & 0xffff);		/* successful TX count */
+
+	ieee80211_amrr_choose(&sc->amrr, sc->sc_ic.ic_bss, &sc->amn);
+	splx(s);
+
+skip:	timeout_add_sec(&sc->calib_to, 1);
+}
+
+void
+run_newassoc(struct ieee80211com *ic, struct ieee80211_node *ni, int isnew)
+{
+	struct run_softc *sc = ic->ic_softc;
+	struct run_node *rn = (void *)ni;
+	struct ieee80211_rateset *rs = &ni->ni_rates;
+	uint8_t rate;
+	int ridx, i, j;
+
+	DPRINTF(("new assoc isnew=%d addr=%s\n",
+	    isnew, ether_sprintf(ni->ni_macaddr)));
+
+	ieee80211_amrr_node_init(&sc->amrr, &sc->amn);
+	/* start at lowest available bit-rate, AMRR will raise */
+	ni->ni_txrate = 0;
+
+	for (i = 0; i < rs->rs_nrates; i++) {
+		rate = rs->rs_rates[i] & IEEE80211_RATE_VAL;
+		/* convert 802.11 rate to hardware rate index */
+		for (ridx = 0; ridx <= RT2860_RIDX_MAX; ridx++)
+			if (rt2860_rates[ridx].rate == rate)
+				break;
+		rn->ridx[i] = ridx;
+		/* determine rate of control response frames */
+		for (j = i; j >= 0; j--) {
+			if ((rs->rs_rates[j] & IEEE80211_RATE_BASIC) &&
+			    rt2860_rates[rn->ridx[i]].phy ==
+			    rt2860_rates[rn->ridx[j]].phy)
+				break;
+		}
+		if (j >= 0) {
+			rn->ctl_ridx[i] = rn->ridx[j];
+		} else {
+			/* no basic rate found, use mandatory one */
+			rn->ctl_ridx[i] = rt2860_rates[ridx].ctl_ridx;
+		}
+		DPRINTF(("rate=0x%02x ridx=%d ctl_ridx=%d\n",
+		    rs->rs_rates[i], rn->ridx[i], rn->ctl_ridx[i]));
+	}
+}
+
+/*
+ * Return the Rx chain with the highest RSSI for a given frame.
+ */
+static __inline uint8_t
+run_maxrssi_chain(struct run_softc *sc, const struct rt2860_rxwi *rxwi)
+{
+	uint8_t rxchain = 0;
+
+	if (sc->nrxchains > 1) {
+		if (rxwi->rssi[1] > rxwi->rssi[rxchain])
+			rxchain = 1;
+		if (sc->nrxchains > 2)
+			if (rxwi->rssi[2] > rxwi->rssi[rxchain])
+				rxchain = 2;
+	}
+	return rxchain;
+}
+
+void
+run_rx_frame(struct run_softc *sc, uint8_t *buf, int dmalen)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	struct ieee80211_frame *wh;
+	struct ieee80211_rxinfo rxi;
+	struct ieee80211_node *ni;
+	struct rt2870_rxd *rxd;
+	struct rt2860_rxwi *rxwi;
+	struct mbuf *m;
+	uint32_t flags;
+	uint16_t len, phy;
+	uint8_t ant, rssi;
+	int s;
+
+	rxwi = (struct rt2860_rxwi *)buf;
+	len = letoh16(rxwi->len) & 0xfff;
+	if (__predict_false(len > dmalen)) {
+		DPRINTF(("bad RXWI length %u > %u\n", len, dmalen));
+		return;
+	}
+	/* Rx descriptor is located at the end */
+	rxd = (struct rt2870_rxd *)(buf + dmalen);
+	flags = letoh32(rxd->flags);
+
+	if (__predict_false(flags & (RT2860_RX_CRCERR | RT2860_RX_ICVERR))) {
+		ifp->if_ierrors++;
+		return;
+	}
+
+	if (__predict_false((flags & RT2860_RX_MICERR))) {
+		/* report MIC failures to net80211 for TKIP */
+		ic->ic_stats.is_rx_locmicfail++;
+		ieee80211_michael_mic_failure(ic, 0/* XXX */);
+		ifp->if_ierrors++;
+		return;
+	}
+
+	wh = (struct ieee80211_frame *)(rxwi + 1);
+	rxi.rxi_flags = 0;
+	if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
+		wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
+		rxi.rxi_flags |= IEEE80211_RXI_HWDEC;
+	}
+
+	if (rxd->flags & RT2860_RX_L2PAD) {
+		u_int hdrlen = ieee80211_get_hdrlen(wh);
+		ovbcopy(wh, (caddr_t)wh + 2, hdrlen);
+		wh = (struct ieee80211_frame *)((caddr_t)wh + 2);
+	}
+
+	/* could use m_devget buf net80211 wants contig mgmt frames */
+	MGETHDR(m, M_DONTWAIT, MT_DATA);
+	if (__predict_false(m == NULL)) {
+		ifp->if_ierrors++;
+		return;
+	}
+	if (len > MHLEN) {
+		MCLGET(m, M_DONTWAIT);
+		if (__predict_false(!(m->m_flags & M_EXT))) {
+			ifp->if_ierrors++;
+			m_freem(m);
+			return;
+		}
+	}
+	/* finalize mbuf */
+	m->m_pkthdr.rcvif = ifp;
+	memcpy(mtod(m, caddr_t), wh, len);
+	m->m_pkthdr.len = m->m_len = len;
+
+	ant = run_maxrssi_chain(sc, rxwi);
+	rssi = rxwi->rssi[ant];
+
+#if NBPFILTER > 0
+	if (__predict_false(sc->sc_drvbpf != NULL)) {
+		struct run_rx_radiotap_header *tap = &sc->sc_rxtap;
+		struct mbuf mb;
+
+		tap->wr_flags = 0;
+		tap->wr_chan_freq = htole16(ic->ic_ibss_chan->ic_freq);
+		tap->wr_chan_flags = htole16(ic->ic_ibss_chan->ic_flags);
+		tap->wr_antsignal = rssi;
+		tap->wr_antenna = ant;
+		tap->wr_dbm_antsignal = run_rssi2dbm(sc, rssi, ant);
+		tap->wr_rate = 2;	/* in case it can't be found below */
+		phy = letoh16(rxwi->phy);
+		switch (phy & RT2860_PHY_MODE) {
+		case RT2860_PHY_CCK:
+			switch ((phy & RT2860_PHY_MCS) & ~RT2860_PHY_SHPRE) {
+			case 0:	tap->wr_rate =   2; break;
+			case 1:	tap->wr_rate =   4; break;
+			case 2:	tap->wr_rate =  11; break;
+			case 3:	tap->wr_rate =  22; break;
+			}
+			if (phy & RT2860_PHY_SHPRE)
+				tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+			break;
+		case RT2860_PHY_OFDM:
+			switch (phy & RT2860_PHY_MCS) {
+			case 0:	tap->wr_rate =  12; break;
+			case 1:	tap->wr_rate =  18; break;
+			case 2:	tap->wr_rate =  24; break;
+			case 3:	tap->wr_rate =  36; break;
+			case 4:	tap->wr_rate =  48; break;
+			case 5:	tap->wr_rate =  72; break;
+			case 6:	tap->wr_rate =  96; break;
+			case 7:	tap->wr_rate = 108; break;
+			}
+			break;
+		}
+		mb.m_data = (caddr_t)tap;
+		mb.m_len = sc->sc_rxtap_len;
+		mb.m_next = m;
+		mb.m_nextpkt = NULL;
+		mb.m_type = 0;
+		mb.m_flags = 0;
+		bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN);
+	}
+#endif
+
+	s = splnet();
+	ni = ieee80211_find_rxnode(ic, wh);
+	rxi.rxi_rssi = rssi;
+	rxi.rxi_tstamp = 0;	/* unused */
+	ieee80211_input(ifp, m, ni, &rxi);
+
+	/* node is no longer needed */
+	ieee80211_release_node(ic, ni);
+	splx(s);
+}
+
+void
+run_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct run_rx_data *data = priv;
+	struct run_softc *sc = data->sc;
+	uint8_t *buf;
+	uint32_t dmalen;
+	int xferlen;
+
+	if (__predict_false(status != USBD_NORMAL_COMPLETION)) {
+		DPRINTF(("RX status=%d\n", status));
+		if (status == USBD_STALLED)
+			usbd_clear_endpoint_stall_async(sc->rxq.pipeh);
+		if (status != USBD_CANCELLED)
+			goto skip;
+		return;
+	}
+	usbd_get_xfer_status(xfer, NULL, NULL, &xferlen, NULL);
+
+	if (__predict_false(xferlen < sizeof (uint32_t) +
+	    sizeof (struct rt2860_rxwi) + sizeof (struct rt2870_rxd))) {
+		DPRINTF(("xfer too short %d\n", xferlen));
+		goto skip;
+	}
+
+	/* HW can aggregate multiple 802.11 frames in a single USB xfer */
+	/* NB: can't happen yet because we disable USB RX aggregation */
+	buf = data->buf;
+	while (xferlen > 8) {
+		dmalen = letoh32(*(uint32_t *)buf) & 0xffff;
+
+		if (__predict_false(dmalen == 0 || (dmalen & 3) != 0)) {
+			DPRINTF(("bad DMA length %u (%x)\n", dmalen));
+			break;
+		}
+		if (__predict_false(dmalen + 8 > xferlen)) {
+			DPRINTF(("bad DMA length %u > %d\n",
+			    dmalen + 8, xferlen));
+			break;
+		}
+		run_rx_frame(sc, buf + sizeof (uint32_t), dmalen);
+		buf += dmalen + 8;
+		xferlen -= dmalen + 8;
+	}
+
+skip:	/* setup a new transfer */
+	usbd_setup_xfer(xfer, sc->rxq.pipeh, data, data->buf, RUN_MAX_RXSZ,
+	    USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, run_rxeof);
+	(void)usbd_transfer(data->xfer);
+}
+
+void
+run_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct run_tx_data *data = priv;
+	struct run_softc *sc = data->sc;
+	struct run_tx_ring *txq = &sc->txq[data->qid];
+	struct ifnet *ifp = &sc->sc_ic.ic_if;
+	int s;
+
+	if (__predict_false(status != USBD_NORMAL_COMPLETION)) {
+		DPRINTF(("TX status=%d\n", status));
+		if (status == USBD_STALLED)
+			usbd_clear_endpoint_stall_async(txq->pipeh);
+		ifp->if_oerrors++;
+		return;
+	}
+
+	s = splnet();
+	sc->sc_tx_timer = 0;
+	ifp->if_opackets++;
+	if (--txq->queued < RUN_TX_RING_COUNT) {
+		sc->qfullmsk &= ~(1 << data->qid);
+		ifp->if_flags &= ~IFF_OACTIVE;
+		run_start(ifp);
+	}
+	splx(s);
+}
+
+int
+run_tx(struct run_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct run_node *rn = (void *)ni;
+	struct ieee80211_frame *wh;
+	struct run_tx_ring *ring;
+	struct run_tx_data *data;
+	struct rt2870_txd *txd;
+	struct rt2860_txwi *txwi;
+	u_int hdrlen;
+	uint16_t qos, dur;
+	uint8_t type, mcs, tid, qid;
+	int error, hasqos, ridx, ctl_ridx, xferlen;
+
+	wh = mtod(m, struct ieee80211_frame *);
+	hdrlen = ieee80211_get_hdrlen(wh);
+	type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
+
+	if ((hasqos = ieee80211_has_qos(wh))) {
+		qos = ieee80211_get_qos(wh);
+		tid = qos & IEEE80211_QOS_TID;
+		qid = ieee80211_up_to_ac(ic, tid);
+	} else {
+		tid = 0;
+		qid = EDCA_AC_BE;
+	}
+	ring = &sc->txq[qid];
+	data = &ring->data[ring->cur];
+
+	/* pickup a rate index */
+	if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
+	    type != IEEE80211_FC0_TYPE_DATA) {
+		ridx = (ic->ic_curmode == IEEE80211_MODE_11A) ?
+		    RT2860_RIDX_OFDM6 : RT2860_RIDX_CCK1;
+		ctl_ridx = rt2860_rates[ridx].ctl_ridx;
+	} else if (ic->ic_fixed_rate != -1) {
+		ridx = sc->fixed_ridx;
+		ctl_ridx = rt2860_rates[ridx].ctl_ridx;
+	} else {
+		ridx = rn->ridx[ni->ni_txrate];
+		ctl_ridx = rn->ctl_ridx[ni->ni_txrate];
+	}
+
+	/* get MCS code from rate index */
+	mcs = rt2860_rates[ridx].mcs;
+
+#if NBPFILTER > 0
+	if (__predict_false(sc->sc_drvbpf != NULL)) {
+		struct run_tx_radiotap_header *tap = &sc->sc_txtap;
+		struct mbuf mb;
+
+		tap->wt_flags = 0;
+		tap->wt_rate = rt2860_rates[ridx].rate;
+		tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq);
+		tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags);
+		tap->wt_hwqueue = qid;
+		if (mcs & RT2860_PHY_SHPRE)
+			tap->wt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+		mb.m_data = (caddr_t)tap;
+		mb.m_len = sc->sc_txtap_len;
+		mb.m_next = m;
+		mb.m_nextpkt = NULL;
+		mb.m_type = 0;
+		mb.m_flags = 0;
+		bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT);
+	}
+#endif
+
+	xferlen = sizeof (*txwi) + m->m_pkthdr.len;
+	/* roundup to 32-bit alignment */
+	xferlen = (xferlen + 3) & ~3;
+
+	txd = (struct rt2870_txd *)data->buf;
+	txd->flags = RT2860_TX_QSEL_EDCA;
+	txd->len = htole16(xferlen);
+
+	/* setup TX Wireless Information */
+	txwi = (struct rt2860_txwi *)(txd + 1);
+	txwi->flags = 0;
+	txwi->xflags = 0;
+	txwi->wcid = (type == IEEE80211_FC0_TYPE_DATA) ?
+	    RUN_AID2WCID(ni->ni_associd) : 0xff;
+	txwi->len = htole16(m->m_pkthdr.len);
+	if (rt2860_rates[ridx].phy == IEEE80211_T_DS) {
+		txwi->phy = htole16(RT2860_PHY_CCK);
+		if (ridx != RT2860_RIDX_CCK1 &&
+		    (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
+			mcs |= RT2860_PHY_SHPRE;
+	} else
+		txwi->phy = htole16(RT2860_PHY_OFDM);
+	txwi->phy |= htole16(mcs);
+
+	txwi->txop = RT2860_TX_TXOP_BACKOFF;
+
+	if (!IEEE80211_IS_MULTICAST(wh->i_addr1) &&
+	    (!hasqos || (qos & IEEE80211_QOS_ACK_POLICY_MASK) >>
+	     IEEE80211_QOS_ACK_POLICY_SHIFT !=
+	     IEEE80211_QOS_ACK_POLICY_NOACK)) {
+		txwi->xflags |= RT2860_TX_ACK;
+		if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+			dur = rt2860_rates[ctl_ridx].sp_ack_dur;
+		else
+			dur = rt2860_rates[ctl_ridx].lp_ack_dur;
+		*(uint16_t *)wh->i_dur = htole16(dur + sc->sifs);
+	}
+
+	m_copydata(m, 0, m->m_pkthdr.len, (caddr_t)(txwi + 1));
+	m_freem(m);
+	ieee80211_release_node(ic, ni);
+
+	xferlen += sizeof (*txd) + 4;
+	if ((xferlen % ring->pktsize) == 0)
+		xferlen += 4;
+
+	usbd_setup_xfer(data->xfer, ring->pipeh, data, data->buf, xferlen,
+	    USBD_FORCE_SHORT_XFER | USBD_NO_COPY, RUN_TX_TIMEOUT, run_txeof);
+	error = usbd_transfer(data->xfer);
+	if (__predict_false(error != USBD_IN_PROGRESS && error != 0))
+		return error;
+
+	ring->cur = (ring->cur + 1) % RUN_TX_RING_COUNT;
+	if (++ring->queued >= RUN_TX_RING_COUNT)
+		sc->qfullmsk |= 1 << qid;
+
+	return 0;
+}
+
+void
+run_start(struct ifnet *ifp)
+{
+	struct run_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ieee80211_node *ni;
+	struct mbuf *m;
+
+	if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
+		return;
+
+	for (;;) {
+		if (sc->qfullmsk != 0) {
+			ifp->if_flags |= IFF_OACTIVE;
+			break;
+		}
+		/* send pending management frames first */
+		IF_DEQUEUE(&ic->ic_mgtq, m);
+		if (m != NULL) {
+			ni = (void *)m->m_pkthdr.rcvif;
+			goto sendit;
+		}
+		if (ic->ic_state != IEEE80211_S_RUN)
+			break;
+
+		/* encapsulate and send data frames */
+		IFQ_DEQUEUE(&ifp->if_snd, m);
+		if (m == NULL)
+			break;
+#if NBPFILTER > 0
+		if (ifp->if_bpf != NULL)
+			bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT);
+#endif
+		if ((m = ieee80211_encap(ifp, m, &ni)) == NULL)
+			continue;
+sendit:
+#if NBPFILTER > 0
+		if (ic->ic_rawbpf != NULL)
+			bpf_mtap(ic->ic_rawbpf, m, BPF_DIRECTION_OUT);
+#endif
+		if (run_tx(sc, m, ni) != 0) {
+			ieee80211_release_node(ic, ni);
+			ifp->if_oerrors++;
+			continue;
+		}
+
+		sc->sc_tx_timer = 5;
+		ifp->if_timer = 1;
+	}
+}
+
+void
+run_watchdog(struct ifnet *ifp)
+{
+	struct run_softc *sc = ifp->if_softc;
+
+	ifp->if_timer = 0;
+
+	if (sc->sc_tx_timer > 0) {
+		if (--sc->sc_tx_timer == 0) {
+			printf("%s: device timeout\n", sc->sc_dev.dv_xname);
+			/* run_init(ifp); XXX needs a process context! */
+			ifp->if_oerrors++;
+			return;
+		}
+		ifp->if_timer = 1;
+	}
+
+	ieee80211_watchdog(ifp);
+}
+
+int
+run_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+	struct run_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifaddr *ifa;
+	struct ifreq *ifr;
+	int s, error = 0;
+
+	s = splnet();
+
+	switch (cmd) {
+	case SIOCSIFADDR:
+		ifa = (struct ifaddr *)data;
+		ifp->if_flags |= IFF_UP;
+#ifdef INET
+		if (ifa->ifa_addr->sa_family == AF_INET)
+			arp_ifinit(&ic->ic_ac, ifa);
+#endif
+		/* FALLTHROUGH */
+	case SIOCSIFFLAGS:
+		if (ifp->if_flags & IFF_UP) {
+			if (!(ifp->if_flags & IFF_RUNNING))
+				run_init(ifp);
+		} else {
+			if (ifp->if_flags & IFF_RUNNING)
+				run_stop(ifp, 1);
+		}
+		break;
+
+	case SIOCADDMULTI:
+	case SIOCDELMULTI:
+		ifr = (struct ifreq *)data;
+		error = (cmd == SIOCADDMULTI) ?
+		    ether_addmulti(ifr, &ic->ic_ac) :
+		    ether_delmulti(ifr, &ic->ic_ac);
+
+		if (error == ENETRESET)
+			error = 0;
+		break;
+
+	case SIOCS80211CHANNEL:
+		/*
+		 * This allows for fast channel switching in monitor mode
+		 * (used by kismet). In IBSS mode, we must explicitly reset
+		 * the interface to generate a new beacon frame.
+		 */
+		error = ieee80211_ioctl(ifp, cmd, data);
+		if (error == ENETRESET &&
+		    ic->ic_opmode == IEEE80211_M_MONITOR) {
+			if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
+			    (IFF_UP | IFF_RUNNING))
+				run_set_chan(sc, ic->ic_ibss_chan);
+			error = 0;
+		}
+		break;
+
+	default:
+		error = ieee80211_ioctl(ifp, cmd, data);
+	}
+
+	if (error == ENETRESET) {
+		if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
+		    (IFF_UP | IFF_RUNNING))
+			run_init(ifp);
+		error = 0;
+	}
+
+	splx(s);
+
+	return error;
+}
+
+void
+run_select_chan_group(struct run_softc *sc, int group)
+{
+	uint32_t tmp;
+
+	run_bbp_write(sc, 62, 0x37 - sc->lna[group]);
+	run_bbp_write(sc, 63, 0x37 - sc->lna[group]);
+	run_bbp_write(sc, 64, 0x37 - sc->lna[group]);
+	run_bbp_write(sc, 86, 0x00);
+
+	if (group == 0) {
+		if (sc->ext_2ghz_lna) {
+			run_bbp_write(sc, 82, 0x62);
+			run_bbp_write(sc, 75, 0x46);
+		} else {
+			run_bbp_write(sc, 82, 0x84);
+			run_bbp_write(sc, 75, 0x50);
+		}
+	} else {
+		if (sc->ext_5ghz_lna) {
+			run_bbp_write(sc, 82, 0xf2);
+			run_bbp_write(sc, 75, 0x46);
+		} else {
+			run_bbp_write(sc, 82, 0xf2);
+			run_bbp_write(sc, 75, 0x50);
+		}
+	}
+
+	run_read(sc, RT2860_TX_BAND_CFG, &tmp);
+	tmp &= ~(RT2860_5G_BAND_SEL_N | RT2860_5G_BAND_SEL_P);
+	tmp |= (group == 0) ? RT2860_5G_BAND_SEL_N : RT2860_5G_BAND_SEL_P;
+	run_write(sc, RT2860_TX_BAND_CFG, tmp);
+
+	/* enable appropriate Power Amplifiers and Low Noise Amplifiers */
+	tmp = RT2860_RFTR_EN | RT2860_TRSW_EN;
+	if (group == 0) {	/* 2GHz */
+		tmp |= RT2860_PA_PE_G0_EN | RT2860_LNA_PE_G0_EN;
+		if (sc->ntxchains > 1)
+			tmp |= RT2860_PA_PE_G1_EN;
+		if (sc->nrxchains > 1)
+			tmp |= RT2860_LNA_PE_G1_EN;
+	} else {		/* 5GHz */
+		tmp |= RT2860_PA_PE_A0_EN | RT2860_LNA_PE_A0_EN;
+		if (sc->ntxchains > 1)
+			tmp |= RT2860_PA_PE_A1_EN;
+		if (sc->nrxchains > 1)
+			tmp |= RT2860_LNA_PE_A1_EN;
+	}
+	run_write(sc, RT2860_TX_PIN_CFG, tmp);
+
+	/* set initial AGC value */
+	if (group == 0)
+		run_bbp_write(sc, 66, 0x2e + sc->lna[0]);
+	else
+		run_bbp_write(sc, 66, 0x32 + (sc->lna[group] * 5) / 3);
+}
+
+void
+run_rt2870_set_chan(struct run_softc *sc, u_int chan)
+{
+	const struct rfprog *rfprog = rt2860_rf2850;
+	uint32_t r2, r3, r4;
+	int8_t txpow1, txpow2;
+	int i;
+
+	/* find the settings for this channel (we know it exists) */
+	for (i = 0; rfprog[i].chan != chan; i++);
+
+	r2 = rfprog[i].r2;
+	if (sc->ntxchains == 1)
+		r2 |= 1 << 12;		/* 1T: disable Tx chain 2 */
+	if (sc->nrxchains == 1)
+		r2 |= 1 << 15 | 1 << 4;	/* 1R: disable Rx chains 2 & 3 */
+	else if (sc->nrxchains == 2)
+		r2 |= 1 << 4;		/* 2R: disable Rx chain 3 */
+
+	/* use Tx power values from EEPROM */
+	txpow1 = sc->txpow1[i];
+	txpow2 = sc->txpow2[i];
+	if (chan > 14) {
+		if (txpow1 >= 0)
+			txpow1 = txpow1 << 1;
+		else
+			txpow1 = (7 + txpow1) << 1 | 1;
+		if (txpow2 >= 0)
+			txpow2 = txpow2 << 1;
+		else
+			txpow2 = (7 + txpow2) << 1 | 1;
+	}
+	r3 = rfprog[i].r3 | txpow1 << 7;
+	r4 = rfprog[i].r4 | sc->freq << 13 | txpow2 << 4;
+
+	run_rt2870_rf_write(sc, RT2860_RF1, rfprog[i].r1);
+	run_rt2870_rf_write(sc, RT2860_RF2, r2);
+	run_rt2870_rf_write(sc, RT2860_RF3, r3);
+	run_rt2870_rf_write(sc, RT2860_RF4, r4);
+
+	DELAY(200);
+
+	run_rt2870_rf_write(sc, RT2860_RF1, rfprog[i].r1);
+	run_rt2870_rf_write(sc, RT2860_RF2, r2);
+	run_rt2870_rf_write(sc, RT2860_RF3, r3 | 1);
+	run_rt2870_rf_write(sc, RT2860_RF4, r4);
+
+	DELAY(200);
+
+	run_rt2870_rf_write(sc, RT2860_RF1, rfprog[i].r1);
+	run_rt2870_rf_write(sc, RT2860_RF2, r2);
+	run_rt2870_rf_write(sc, RT2860_RF3, r3);
+	run_rt2870_rf_write(sc, RT2860_RF4, r4);
+}
+
+void
+run_rt3070_set_chan(struct run_softc *sc, u_int chan)
+{
+	int8_t txpow;
+	uint8_t tmp;
+
+	/* use Tx power values from EEPROM */
+	txpow = sc->txpow1[chan - 1];
+
+	run_rt3070_rf_write(sc, 2, run_rf3020_freqs[chan - 1].n);
+	run_rt3070_rf_write(sc, 3, run_rf3020_freqs[chan - 1].k);
+	run_rt3070_rf_read(sc, 6, &tmp);
+	tmp = (tmp & ~0x03) | run_rf3020_freqs[chan - 1].r;
+	run_rt3070_rf_write(sc, 6, tmp);
+
+	/* set Tx power */
+	run_rt3070_rf_read(sc, 12, &tmp);
+	tmp = (tmp & ~0x1f) | txpow;
+	run_rt3070_rf_write(sc, 12, tmp);
+
+	/* set RF offset */
+	run_rt3070_rf_read(sc, 23, &tmp);
+	tmp = (tmp & ~0x7f) | sc->freq;
+	run_rt3070_rf_write(sc, 23, tmp);
+
+	/* program RF filter */
+	run_rt3070_rf_write(sc, 24, sc->rf24_20mhz);
+
+	/* enable RF tuning */
+	run_rt3070_rf_read(sc, 7, &tmp);
+	tmp |= 1;
+	run_rt3070_rf_write(sc, 7, tmp);
+}
+
+int
+run_set_chan(struct run_softc *sc, struct ieee80211_channel *c)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	u_int chan, group;
+
+	chan = ieee80211_chan2ieee(ic, c);
+	if (chan == 0 || chan == IEEE80211_CHAN_ANY)
+		return EINVAL;
+
+	if ((sc->mac_rev >> 16) == 0x3070)
+		run_rt3070_set_chan(sc, chan);
+	else
+		run_rt2870_set_chan(sc, chan);
+
+	/* 802.11a uses a 16 microseconds short interframe space */
+	sc->sifs = IEEE80211_IS_CHAN_5GHZ(c) ? 16 : 10;
+
+	/* determine channel group */
+	if (chan <= 14)
+		group = 0;
+	else if (chan <= 64)
+		group = 1;
+	else if (chan <= 128)
+		group = 2;
+	else
+		group = 3;
+
+	/* XXX necessary only when group has changed! */
+	run_select_chan_group(sc, group);
+
+	DELAY(1000);
+	return 0;
+}
+
+void
+run_enable_tsf_sync(struct run_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint32_t tmp;
+
+	run_read(sc, RT2860_BCN_TIME_CFG, &tmp);
+	tmp &= ~0x1fffff;
+	tmp |= ic->ic_bss->ni_intval * 16;
+	tmp |= RT2860_TSF_TIMER_EN | RT2860_TBTT_TIMER_EN;
+	/* local TSF is always updated with remote TSF on beacon reception */
+	tmp |= 1 << RT2860_TSF_SYNC_MODE_SHIFT;
+	run_write(sc, RT2860_BCN_TIME_CFG, tmp);
+}
+
+void
+run_enable_mrr(struct run_softc *sc)
+{
+#define CCK(mcs)	(mcs)
+#define OFDM(mcs)	(1 << 3 | (mcs))
+	run_write(sc, RT2860_LG_FBK_CFG0,
+	    OFDM(6) << 28 |	/* 54->48 */
+	    OFDM(5) << 24 |	/* 48->36 */
+	    OFDM(4) << 20 |	/* 36->24 */
+	    OFDM(3) << 16 |	/* 24->18 */
+	    OFDM(2) << 12 |	/* 18->12 */
+	    OFDM(1) <<  8 |	/* 12-> 9 */
+	    OFDM(0) <<  4 |	/*  9-> 6 */
+	    OFDM(0));		/*  6-> 6 */
+
+	run_write(sc, RT2860_LG_FBK_CFG1,
+	    CCK(2) << 12 |	/* 11->5.5 */
+	    CCK(1) <<  8 |	/* 5.5-> 2 */
+	    CCK(0) <<  4 |	/*   2-> 1 */
+	    CCK(0));		/*   1-> 1 */
+#undef OFDM
+#undef CCK
+}
+
+void
+run_set_txpreamble(struct run_softc *sc)
+{
+	uint32_t tmp;
+
+	run_read(sc, RT2860_AUTO_RSP_CFG, &tmp);
+	if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)
+		tmp |= RT2860_CCK_SHORT_EN;
+	else
+		tmp &= ~RT2860_CCK_SHORT_EN;
+	run_write(sc, RT2860_AUTO_RSP_CFG, tmp);
+}
+
+void
+run_set_basicrates(struct run_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+
+	/* set basic rates mask */
+	if (ic->ic_curmode == IEEE80211_MODE_11B)
+		run_write(sc, RT2860_LEGACY_BASIC_RATE, 0x003);
+	else if (ic->ic_curmode == IEEE80211_MODE_11A)
+		run_write(sc, RT2860_LEGACY_BASIC_RATE, 0x150);
+	else	/* 11g */
+		run_write(sc, RT2860_LEGACY_BASIC_RATE, 0x15f);
+}
+
+void
+run_set_leds(struct run_softc *sc, uint16_t which)
+{
+	(void)run_mcu_cmd(sc, RT2860_MCU_CMD_LEDS,
+	    which | (sc->leds & 0x7f));
+}
+
+void
+run_set_bssid(struct run_softc *sc, const uint8_t *bssid)
+{
+	run_write(sc, RT2860_MAC_BSSID_DW0,
+	    bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
+	run_write(sc, RT2860_MAC_BSSID_DW1,
+	    bssid[4] | bssid[5] << 8);
+}
+
+void
+run_set_macaddr(struct run_softc *sc, const uint8_t *addr)
+{
+	run_write(sc, RT2860_MAC_ADDR_DW0,
+	    addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
+	run_write(sc, RT2860_MAC_ADDR_DW1,
+	    addr[4] | addr[5] << 8);
+}
+
+void
+run_updateslot(struct ieee80211com *ic)
+{
+	/* do it in a process context */
+	run_do_async(ic->ic_softc, run_updateslot_cb, NULL, 0);
+}
+
+/* ARGSUSED */
+void
+run_updateslot_cb(struct run_softc *sc, void *arg)
+{
+	uint32_t tmp;
+
+	run_read(sc, RT2860_BKOFF_SLOT_CFG, &tmp);
+	tmp &= ~0xff;
+	tmp |= (sc->sc_ic.ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
+	run_write(sc, RT2860_BKOFF_SLOT_CFG, tmp);
+}
+
+#if NBPFILTER > 0
+int8_t
+run_rssi2dbm(struct run_softc *sc, uint8_t rssi, uint8_t rxchain)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ieee80211_channel *c = ic->ic_ibss_chan;
+	int delta;
+
+	if (IEEE80211_IS_CHAN_5GHZ(c)) {
+		u_int chan = ieee80211_chan2ieee(ic, c);
+		delta = sc->rssi_5ghz[rxchain];
+
+		/* determine channel group */
+		if (chan <= 64)
+			delta -= sc->lna[1];
+		else if (chan <= 128)
+			delta -= sc->lna[2];
+		else
+			delta -= sc->lna[3];
+	} else
+		delta = sc->rssi_2ghz[rxchain] - sc->lna[0];
+
+	return -12 - delta - rssi;
+}
+#endif
+
+int
+run_bbp_init(struct run_softc *sc)
+{
+	int i, error, ntries;
+	uint8_t bbp0;
+
+	/* wait for BBP to wake up */
+	for (ntries = 0; ntries < 20; ntries++) {
+		if ((error = run_bbp_read(sc, 0, &bbp0)) != 0)
+			return error;
+		if (bbp0 != 0 && bbp0 != 0xff)
+			break;
+	}
+	if (ntries == 20)
+		return ETIMEDOUT;
+
+	/* initialize BBP registers to default values */
+	for (i = 0; i < nitems(rt2860_def_bbp); i++) {
+		run_bbp_write(sc, rt2860_def_bbp[i].reg,
+		    rt2860_def_bbp[i].val);
+	}
+
+	/* fix BBP84 for RT2860E */
+	if ((sc->mac_rev & 0xffff) != 0x0101)
+		run_bbp_write(sc,  84, 0x19);
+
+	if ((sc->mac_rev >> 16) >= 0x3070) {
+		run_bbp_write(sc,  70, 0x0a);
+		run_bbp_write(sc,  84, 0x99);
+		run_bbp_write(sc, 105, 0x05);
+	} else if (sc->mac_rev == 0x28600100) {
+		run_bbp_write(sc,  69, 0x16);
+		run_bbp_write(sc,  73, 0x12);
+	}
+	return 0;
+}
+
+int
+run_rt3070_rf_init(struct run_softc *sc)
+{
+	uint32_t tmp;
+	uint8_t rf6, rf30;
+	uint8_t bbp4;
+	int i;
+
+	/* toggle RF R30 bit 7 */
+	run_rt3070_rf_read(sc, 30, &rf30);
+	run_rt3070_rf_write(sc, 30, rf30 | 0x80);
+	DELAY(1000);
+	run_rt3070_rf_write(sc, 30, rf30 & ~0x80);
+
+	/* initialize RF registers to default value */
+	for (i = 0; i < nitems(rt3070_def_rf); i++) {
+		run_rt3070_rf_write(sc, rt3070_def_rf[i].reg,
+		    rt3070_def_rf[i].val);
+	}
+	if ((sc->mac_rev >> 16) == 0x3070) {
+		/* change voltage from 1.2V to 1.35V for RT3070 */
+		run_read(sc, RT3070_LDO_CFG0, &tmp);
+		tmp = (tmp & ~0x0f000000) | 0x0d000000;
+		run_write(sc, RT3070_LDO_CFG0, tmp);
+
+	} else if ((sc->mac_rev >> 16) == 0x3071) {
+		run_rt3070_rf_read(sc, 6, &rf6);
+		run_rt3070_rf_write(sc, 6, rf6 | 0x40);
+		run_rt3070_rf_write(sc, 31, 0x14);
+
+		run_read(sc, RT3070_LDO_CFG0, &tmp);
+		tmp &= ~0x1f000000;
+		if ((sc->mac_rev & 0xffff) < 0x0211)
+			tmp |= 0x0d000000;
+		else
+			tmp |= 0x01000000;
+		run_write(sc, RT3070_LDO_CFG0, tmp);
+
+		/* patch LNA_PE_G1 */
+		run_read(sc, RT3070_GPIO_SWITCH, &tmp);
+		run_write(sc, RT3070_GPIO_SWITCH, tmp & ~0x20);
+	}
+
+	/* calibrate filter for 20MHz bandwidth */
+	sc->rf24_20mhz = 0x1f;	/* default value */
+	run_rt3070_filter_calib(sc, 0x07, 0x16, &sc->rf24_20mhz);
+
+	/* select 40MHz bandwidth */
+	run_bbp_read(sc, 4, &bbp4);
+	run_bbp_write(sc, 4, (bbp4 & ~0x08) | 0x10);
+
+	/* calibrate filter for 40MHz bandwidth */
+	sc->rf24_40mhz = 0x2f;	/* default value */
+	run_rt3070_filter_calib(sc, 0x27, 0x19, &sc->rf24_40mhz);
+
+	/* go back to 20MHz bandwidth */
+	run_bbp_read(sc, 4, &bbp4);
+	run_bbp_write(sc, 4, bbp4 & ~0x18);
+
+	if ((sc->mac_rev & 0xffff) < 0x0211)
+		run_rt3070_rf_write(sc, 27, 0x03);
+
+	run_read(sc, RT3070_OPT_14, &tmp);
+	run_write(sc, RT3070_OPT_14, tmp | 1);
+
+#ifdef notyet
+	if ((sc->mac_rev >> 16) == 0x3071)
+		;
+#endif
+	return 0;
+}
+
+int
+run_rt3070_filter_calib(struct run_softc *sc, uint8_t init, uint8_t target,
+    uint8_t *val)
+{
+	uint8_t rf22, rf24;
+	uint8_t bbp55_pb, bbp55_sb, delta;
+	int ntries;
+
+	/* program filter */
+	rf24 = init;	/* initial filter value */
+	run_rt3070_rf_write(sc, 24, rf24);
+
+	/* enable baseband loopback mode */
+	run_rt3070_rf_read(sc, 22, &rf22);
+	run_rt3070_rf_write(sc, 22, rf22 | 1);
+
+	/* set power and frequency of passband test tone */
+	run_bbp_write(sc, 24, 0x00);
+	for (ntries = 0; ntries < 100; ntries++) {
+		/* transmit test tone */
+		run_bbp_write(sc, 25, 0x90);
+		DELAY(1000);
+		/* read received power */
+		run_bbp_read(sc, 55, &bbp55_pb);
+		if (bbp55_pb != 0)
+			break;
+	}
+	if (ntries == 100)
+		return ETIMEDOUT;
+
+	/* set power and frequency of stopband test tone */
+	run_bbp_write(sc, 24, 0x06);
+	for (ntries = 0; ntries < 100; ntries++) {
+		/* transmit test tone */
+		run_bbp_write(sc, 25, 0x90);
+		DELAY(1000);
+		/* read received power */
+		run_bbp_read(sc, 55, &bbp55_sb);
+
+		delta = bbp55_pb - bbp55_sb;
+		if (delta < target)
+			rf24++;
+		else if (delta == target)
+			rf24++;
+		else
+			break;
+
+		/* reprogram filter */
+		run_rt3070_rf_write(sc, 24, rf24);
+	}
+	if (ntries < 100) {
+		*val = rf24;
+		run_rt3070_rf_write(sc, 24, rf24);
+	}
+
+	/* restore initial state */
+	run_bbp_write(sc, 24, 0x00);
+
+	/* disable baseband loopback mode */
+	run_rt3070_rf_read(sc, 22, &rf22);
+	run_rt3070_rf_write(sc, 22, rf22 & ~1);
+
+	return 0;
+}
+
+int
+run_txrx_enable(struct run_softc *sc)
+{
+	uint32_t tmp;
+	int error, ntries;
+
+	run_write(sc, RT2860_MAC_SYS_CTRL, RT2860_MAC_TX_EN);
+	for (ntries = 0; ntries < 200; ntries++) {
+		if ((error = run_read(sc, RT2860_WPDMA_GLO_CFG, &tmp)) != 0)
+			return error;
+		if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 200)
+		return ETIMEDOUT;
+
+	DELAY(50);
+
+	tmp |= RT2860_RX_DMA_EN | RT2860_TX_DMA_EN | RT2860_TX_WB_DDONE;
+	run_write(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	tmp = RT2860_USB_TX_EN | RT2860_USB_RX_EN;
+#ifdef notyet
+	/* enable bulk aggregation */
+	tmp |= RT2860_USB_RX_AGG_EN | 0x80 << RT2860_USB_RX_AGG_TO_SHIFT |
+	    ((RUN_MAX_RXSZ / 1024) - 3) << RT2860_USB_RX_AGG_LMT_SHIFT;
+#endif
+	run_write(sc, RT2860_USB_DMA_CFG, tmp);
+
+	/* set Rx filter */
+	tmp = RT2860_DROP_CRC_ERR | RT2860_DROP_PHY_ERR;
+	if (sc->sc_ic.ic_opmode != IEEE80211_M_MONITOR) {
+		tmp |= RT2860_DROP_UC_NOME | RT2860_DROP_DUPL |
+		    RT2860_DROP_CTS | RT2860_DROP_BA | RT2860_DROP_ACK |
+		    RT2860_DROP_VER_ERR | RT2860_DROP_CTRL_RSV |
+		    RT2860_DROP_CFACK | RT2860_DROP_CFEND;
+		if (sc->sc_ic.ic_opmode == IEEE80211_M_STA)
+			tmp |= RT2860_DROP_RTS | RT2860_DROP_PSPOLL;
+	}
+	run_write(sc, RT2860_RX_FILTR_CFG, tmp);
+
+	run_write(sc, RT2860_MAC_SYS_CTRL,
+	    RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
+
+	return 0;
+}
+
+int
+run_init(struct ifnet *ifp)
+{
+	struct run_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint32_t tmp;
+	uint8_t bbp1, bbp3;
+	int i, error, qid, wcid, ridx, ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if ((error = run_read(sc, RT2860_ASIC_VER_ID, &tmp)) != 0)
+			return error;
+		if (tmp != 0 && tmp != 0xffffffff)
+			break;
+		DELAY(10);
+	}
+	if (ntries == 100) {
+		error = ETIMEDOUT;
+		goto fail;
+	}
+
+	if ((error = run_load_microcode(sc)) != 0) {
+		printf("%s: could not load 8051 microcode\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	/* init host command ring */
+	sc->cmdq.cur = sc->cmdq.next = sc->cmdq.queued = 0;
+
+	/* init Tx rings (4 EDCAs + HCCA + Prio) */
+	for (qid = 0; qid < 6; qid++) {
+		if ((error = run_alloc_tx_ring(sc, qid)) != 0)
+			goto fail;
+	}
+	/* init Rx ring */
+	if ((error = run_alloc_rx_ring(sc)) != 0)
+		goto fail;
+
+	IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl));
+	run_set_macaddr(sc, ic->ic_myaddr);
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		run_read(sc, RT2860_WPDMA_GLO_CFG, &tmp);
+		if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 100) {
+		printf("%s: timeout waiting for DMA engine\n",
+		    sc->sc_dev.dv_xname);
+		error = ETIMEDOUT;
+		goto fail;
+	}
+	tmp &= 0xff0;
+	tmp |= RT2860_TX_WB_DDONE;
+	run_write(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	/* turn off PME_OEN to solve high-current issue */
+	run_read(sc, RT2860_SYS_CTRL, &tmp);
+	run_write(sc, RT2860_SYS_CTRL, tmp & ~RT2860_PME_OEN);
+
+	run_write(sc, RT2860_MAC_SYS_CTRL,
+	    RT2860_BBP_HRST | RT2860_MAC_SRST);
+	run_write(sc, RT2860_USB_DMA_CFG, 0);
+
+	if ((error = run_reset(sc)) != 0) {
+		printf("%s: could not reset chipset\n", sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	run_write(sc, RT2860_MAC_SYS_CTRL, 0);
+
+	/* init Tx power for all Tx rates (from EEPROM) */
+	for (ridx = 0; ridx < 5; ridx++) {
+		if (sc->txpow20mhz[ridx] == 0xffffffff)
+			continue;
+		run_write(sc, RT2860_TX_PWR_CFG(ridx), sc->txpow20mhz[ridx]);
+	}
+
+	for (i = 0; i < nitems(rt2870_def_mac); i++)
+		run_write(sc, rt2870_def_mac[i].reg, rt2870_def_mac[i].val);
+	run_write(sc, RT2860_WMM_AIFSN_CFG, 0x00002273);
+	run_write(sc, RT2860_WMM_CWMIN_CFG, 0x00002344);
+	run_write(sc, RT2860_WMM_CWMAX_CFG, 0x000034aa);
+
+	if ((sc->mac_rev >> 16) >= 0x3070) {
+		/* set delay of PA_PE assertion to 1us (unit of 0.25us) */
+		run_write(sc, RT2860_TX_SW_CFG0,
+		    4 << RT2860_DLY_PAPE_EN_SHIFT);
+		run_write(sc, RT2860_TX_SW_CFG1, 0);
+		run_write(sc, RT2860_TX_SW_CFG2, 0);
+	}
+
+	/* wait while MAC is busy */
+	for (ntries = 0; ntries < 100; ntries++) {
+		run_read(sc, RT2860_MAC_STATUS_REG, &tmp);
+		if (!(tmp & (RT2860_RX_STATUS_BUSY | RT2860_TX_STATUS_BUSY)))
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 100) {
+		error = ETIMEDOUT;
+		goto fail;
+	}
+
+	/* clear Host to MCU mailbox */
+	run_write(sc, RT2860_H2M_BBPAGENT, 0);
+	run_write(sc, RT2860_H2M_MAILBOX, 0);
+	DELAY(1000);
+
+	if ((error = run_bbp_init(sc)) != 0) {
+		printf("%s: could not initialize BBP\n", sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	run_read(sc, RT2860_BCN_TIME_CFG, &tmp);
+	tmp &= ~(RT2860_BCN_TX_EN | RT2860_TSF_TIMER_EN |
+	    RT2860_TBTT_TIMER_EN);
+	run_write(sc, RT2860_BCN_TIME_CFG, tmp);
+
+	/* clear RX WCID search table */
+	for (wcid = 0; wcid <= RT2870_WCID_MAX; wcid++) {
+		/* etherbroadcast followed by BA session mask */
+		static const uint8_t entry[] =
+		    { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00 };
+		run_write_region_1(sc, RT2860_WCID_ENTRY(wcid),
+		    entry, sizeof entry);
+	}
+	/* clear WCID attribute table */
+	run_set_region_4(sc, RT2860_WCID_ATTR(0), 1, 8 * 32);
+	/* clear shared key mode */
+	run_set_region_4(sc, RT2860_SKEY_MODE_0_7, 0, 4);
+
+	run_read(sc, RT2860_US_CYC_CNT, &tmp);
+	tmp = (tmp & ~0xff) | 0x1e;
+	run_write(sc, RT2860_US_CYC_CNT, tmp);
+
+	if ((sc->mac_rev & 0xffff) != 0x0101)
+		run_write(sc, RT2860_TXOP_CTRL_CFG, 0x0000583f);
+
+	run_write(sc, RT2860_WMM_TXOP0_CFG, 0);
+	run_write(sc, RT2860_WMM_TXOP1_CFG, 48 << 16 | 96);
+
+	/* write vendor-specific BBP values (from EEPROM) */
+	for (i = 0; i < 8; i++) {
+		if (sc->bbp[i].reg == 0 || sc->bbp[i].reg == 0xff)
+			continue;
+		run_bbp_write(sc, sc->bbp[i].reg, sc->bbp[i].val);
+	}
+
+	/* send LEDs operating mode to microcontroller */
+	(void)run_mcu_cmd(sc, RT2860_MCU_CMD_LED1, sc->led[0]);
+	(void)run_mcu_cmd(sc, RT2860_MCU_CMD_LED2, sc->led[1]);
+	(void)run_mcu_cmd(sc, RT2860_MCU_CMD_LED3, sc->led[2]);
+
+	/* disable non-existing Rx chains */
+	run_bbp_read(sc, 3, &bbp3);
+	bbp3 &= ~(1 << 3 | 1 << 4);
+	if (sc->nrxchains == 2)
+		bbp3 |= 1 << 3;
+	else if (sc->nrxchains == 3)
+		bbp3 |= 1 << 4;
+	run_bbp_write(sc, 3, bbp3);
+
+	/* disable non-existing Tx chains */
+	run_bbp_read(sc, 1, &bbp1);
+	if (sc->ntxchains == 1)
+		bbp1 &= ~(1 << 3 | 1 << 4);
+	run_bbp_write(sc, 1, bbp1);
+
+	if ((sc->mac_rev >> 16) >= 0x3070)
+		run_rt3070_rf_init(sc);
+
+	/* select default channel */
+	ic->ic_bss->ni_chan = ic->ic_ibss_chan;
+	run_set_chan(sc, ic->ic_ibss_chan);
+
+	/* turn radio LED on */
+	run_set_leds(sc, RT2860_LED_RADIO);
+
+	if (ic->ic_flags & IEEE80211_F_WEPON) {
+		/* install WEP keys */
+		for (i = 0; i < IEEE80211_WEP_NKID; i++)
+			(void)run_set_key(ic, NULL, &ic->ic_nw_keys[i]);
+	}
+
+	for (i = 0; i < RUN_RX_RING_COUNT; i++) {
+		struct run_rx_data *data = &sc->rxq.data[i];
+
+		usbd_setup_xfer(data->xfer, sc->rxq.pipeh, data, data->buf,
+		    RUN_MAX_RXSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY,
+		    USBD_NO_TIMEOUT, run_rxeof);
+		error = usbd_transfer(data->xfer);
+		if (error != 0 && error != USBD_IN_PROGRESS)
+			goto fail;
+	}
+
+	if ((error = run_txrx_enable(sc)) != 0)
+		return error;
+
+	ifp->if_flags &= ~IFF_OACTIVE;
+	ifp->if_flags |= IFF_RUNNING;
+
+	if (ic->ic_opmode == IEEE80211_M_MONITOR)
+		ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
+	else
+		ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
+
+	if (error != 0)
+fail:		run_stop(ifp, 1);
+	return error;
+}
+
+void
+run_stop(struct ifnet *ifp, int disable)
+{
+	struct run_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint32_t tmp;
+	int s, qid;
+
+	if (ifp->if_flags & IFF_RUNNING)
+		run_set_leds(sc, 0);	/* turn all LEDs off */
+
+	sc->sc_tx_timer = 0;
+	ifp->if_timer = 0;
+	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
+
+	timeout_del(&sc->scan_to);
+	timeout_del(&sc->calib_to);
+
+	s = splusb();
+	ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
+	/* wait for all queued asynchronous commands to complete */
+	while (sc->cmdq.queued > 0)
+		tsleep(&sc->cmdq, 0, "cmdq", 0);
+	splx(s);
+
+	/* disable Tx/Rx */
+	run_read(sc, RT2860_MAC_SYS_CTRL, &tmp);
+	tmp &= ~(RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
+	run_write(sc, RT2860_MAC_SYS_CTRL, tmp);
+
+	run_write(sc, RT2860_USB_DMA_CFG, 0);
+
+	/* reset adapter */
+	run_write(sc, RT2860_MAC_SYS_CTRL, RT2860_BBP_HRST | RT2860_MAC_SRST);
+	run_write(sc, RT2860_MAC_SYS_CTRL, 0);
+
+	/* reset Tx and Rx rings */
+	sc->qfullmsk = 0;
+	for (qid = 0; qid < 6; qid++)
+		run_free_tx_ring(sc, qid);
+	run_free_rx_ring(sc);
+}
diff --git a/sys/dev/usb/if_runvar.h b/sys/dev/usb/if_runvar.h
new file mode 100644
index 00000000000..55832542b4e
--- /dev/null
+++ b/sys/dev/usb/if_runvar.h
@@ -0,0 +1,207 @@
+/*	$OpenBSD: if_runvar.h,v 1.1 2009/01/03 18:39:33 damien Exp $	*/
+
+/*-
+ * Copyright (c) 2008,2009 Damien Bergamini <damien.bergamini@free.fr>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define RUN_MAX_RXSZ			\
+	4096
+#if 0
+	(sizeof (uint32_t) +		\
+	 sizeof (struct rt2860_rxwi) +	\
+	 sizeof (uint16_t) +		\
+	 MCLBYTES +			\
+	 sizeof (struct rt2870_rxd))
+#endif
+/* NB: "11" is the maximum number of padding bytes needed for Tx */
+#define RUN_MAX_TXSZ			\
+	(sizeof (struct rt2870_txd) +	\
+	 sizeof (struct rt2860_rxwi) +	\
+	 MCLBYTES + 11)
+
+#define RUN_TX_TIMEOUT	5000	/* ms */
+
+#define RUN_RX_RING_COUNT	1
+#define RUN_TX_RING_COUNT	8
+
+#define RT2870_WCID_MAX		253
+#define RUN_AID2WCID(aid)	((aid) & 0xff)
+
+struct run_rx_radiotap_header {
+	struct ieee80211_radiotap_header wr_ihdr;
+	uint8_t		wr_flags;
+	uint8_t		wr_rate;
+	uint16_t	wr_chan_freq;
+	uint16_t	wr_chan_flags;
+	uint8_t		wr_dbm_antsignal;
+	uint8_t		wr_antenna;
+	uint8_t		wr_antsignal;
+} __packed;
+
+#define RUN_RX_RADIOTAP_PRESENT				\
+	(1 << IEEE80211_RADIOTAP_FLAGS |		\
+	 1 << IEEE80211_RADIOTAP_RATE |			\
+	 1 << IEEE80211_RADIOTAP_CHANNEL |		\
+	 1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL |	\
+	 1 << IEEE80211_RADIOTAP_ANTENNA |		\
+	 1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL)
+
+struct run_tx_radiotap_header {
+	struct ieee80211_radiotap_header wt_ihdr;
+	uint8_t		wt_flags;
+	uint8_t		wt_rate;
+	uint16_t	wt_chan_freq;
+	uint16_t	wt_chan_flags;
+	uint8_t		wt_hwqueue;
+} __packed;
+
+#define RUN_TX_RADIOTAP_PRESENT				\
+	(1 << IEEE80211_RADIOTAP_FLAGS |		\
+	 1 << IEEE80211_RADIOTAP_RATE |			\
+	 1 << IEEE80211_RADIOTAP_CHANNEL |		\
+	 1 << IEEE80211_RADIOTAP_HWQUEUE)
+
+struct run_softc;
+
+struct run_tx_data {
+	struct run_softc	*sc;
+	usbd_xfer_handle	xfer;
+	uint8_t			*buf;
+	uint8_t			qid;
+};
+
+struct run_rx_data {
+	struct run_softc	*sc;
+	usbd_xfer_handle	xfer;
+	uint8_t			*buf;
+};
+
+struct run_tx_ring {
+	struct run_tx_data	data[RUN_TX_RING_COUNT];
+	usbd_pipe_handle	pipeh;
+	int			cur;
+	int			queued;
+	uint16_t		pktsize;
+	uint8_t			pipe_no;
+};
+
+struct run_rx_ring {
+	struct run_rx_data	data[RUN_RX_RING_COUNT];
+	usbd_pipe_handle	pipeh;
+	uint8_t			pipe_no;
+};
+
+struct run_host_cmd {
+	void	(*cb)(struct run_softc *, void *);
+	uint8_t	data[256];
+};
+
+struct run_cmd_newstate {
+	enum ieee80211_state	state;
+	int			arg;
+};
+
+struct run_cmd_key {
+	struct ieee80211_key	key;
+	uint16_t		associd;
+};
+
+#define RUN_HOST_CMD_RING_COUNT	32
+struct run_host_cmd_ring {
+	struct run_host_cmd	cmd[RUN_HOST_CMD_RING_COUNT];
+	int			cur;
+	int			next;
+	int			queued;
+};
+
+struct run_node {
+	struct ieee80211_node	ni;
+	uint8_t			ridx[IEEE80211_RATE_MAXSIZE];
+	uint8_t			ctl_ridx[IEEE80211_RATE_MAXSIZE];
+};
+
+struct run_softc {
+	struct device			sc_dev;
+	struct ieee80211com		sc_ic;
+	int				(*sc_newstate)(struct ieee80211com *,
+					    enum ieee80211_state, int);
+	int				(*sc_srom_read)(struct run_softc *,
+					    uint16_t, uint16_t *);
+
+	usbd_device_handle		sc_udev;
+	usbd_interface_handle		sc_iface;
+
+	uint32_t			mac_rev;
+	uint8_t				rf_rev;
+	uint8_t				freq;
+	uint8_t				ntxchains;
+	uint8_t				nrxchains;
+	int				fixed_ridx;
+
+	uint8_t				rf24_20mhz;
+	uint8_t				rf24_40mhz;
+	uint8_t				ext_2ghz_lna;
+	uint8_t				ext_5ghz_lna;
+	uint8_t				calib_2ghz;
+	uint8_t				calib_5ghz;
+	int8_t				txpow1[50];
+	int8_t				txpow2[50];
+	int8_t				rssi_2ghz[3];
+	int8_t				rssi_5ghz[3];
+	uint8_t				lna[4];
+
+	struct {
+		uint8_t	reg;
+		uint8_t	val;
+	}				bbp[8];
+	uint8_t				leds;
+	uint16_t			led[3];
+	uint32_t			txpow20mhz[5];
+	uint32_t			txpow40mhz_2ghz[5];
+	uint32_t			txpow40mhz_5ghz[5];
+
+	struct usb_task			sc_task;
+
+	struct ieee80211_amrr		amrr;
+	struct ieee80211_amrr_node	amn;
+
+	struct timeout			scan_to;
+	struct timeout			calib_to;
+
+	struct run_rx_ring		rxq;
+	struct run_tx_ring		txq[6];
+	struct run_host_cmd_ring	cmdq;
+	uint8_t				qfullmsk;
+	int				sifs;
+	int				sc_tx_timer;
+
+#if NBPFILTER > 0
+	caddr_t				sc_drvbpf;
+
+	union {
+		struct run_rx_radiotap_header th;
+		uint8_t	pad[64];
+	}				sc_rxtapu;
+#define sc_rxtap	sc_rxtapu.th
+	int				sc_rxtap_len;
+
+	union {
+		struct run_tx_radiotap_header th;
+		uint8_t	pad[64];
+	}				sc_txtapu;
+#define sc_txtap	sc_txtapu.th
+	int				sc_txtap_len;
+#endif
+};