Add support for Ralink RT2800/RT3000 chipsets.

Thanks to ray@, Sevan and Sergey Dyatko for feedback and testing!

Obtained from:	OpenBSD
MFC after:	3 weeks

1 files changed, 4103 insertions, 0 deletions

diff --git a/sys/dev/ral/rt2860.c b/sys/dev/ral/rt2860.c
new file mode 100644
index 0000000..4a5aa25
--- /dev/null
+++ b/sys/dev/ral/rt2860.c
@@ -0,0 +1,4103 @@
+/*-
+ * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
+ * Copyright (c) 2012 Bernhard Schmidt <bschmidt@FreeBSD.org>
+ *
+ * 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.
+ *
+ * $OpenBSD: rt2860.c,v 1.65 2010/10/23 14:24:54 damien Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*-
+ * Ralink Technology RT2860/RT3090/RT3390/RT3562 chipset driver
+ * http://www.ralinktech.com/
+ */
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/sockio.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/endian.h>
+#include <sys/firmware.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/ethernet.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_radiotap.h>
+#include <net80211/ieee80211_regdomain.h>
+#include <net80211/ieee80211_ratectl.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/ip.h>
+#include <netinet/if_ether.h>
+
+#include <dev/ral/rt2860reg.h>
+#include <dev/ral/rt2860var.h>
+
+#define RAL_DEBUG
+#ifdef RAL_DEBUG
+#define DPRINTF(x)	do { if (sc->sc_debug > 0) printf x; } while (0)
+#define DPRINTFN(n, x)	do { if (sc->sc_debug >= (n)) printf x; } while (0)
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n, x)
+#endif
+
+static struct ieee80211vap *rt2860_vap_create(struct ieee80211com *,
+			    const char [IFNAMSIZ], int, enum ieee80211_opmode,
+			    int, const uint8_t [IEEE80211_ADDR_LEN],
+			    const uint8_t [IEEE80211_ADDR_LEN]);
+static void	rt2860_vap_delete(struct ieee80211vap *);
+static void	rt2860_dma_map_addr(void *, bus_dma_segment_t *, int, int);
+static int	rt2860_alloc_tx_ring(struct rt2860_softc *,
+		    struct rt2860_tx_ring *);
+static void	rt2860_reset_tx_ring(struct rt2860_softc *,
+		    struct rt2860_tx_ring *);
+static void	rt2860_free_tx_ring(struct rt2860_softc *,
+		    struct rt2860_tx_ring *);
+static int	rt2860_alloc_tx_pool(struct rt2860_softc *);
+static void	rt2860_free_tx_pool(struct rt2860_softc *);
+static int	rt2860_alloc_rx_ring(struct rt2860_softc *,
+		    struct rt2860_rx_ring *);
+static void	rt2860_reset_rx_ring(struct rt2860_softc *,
+		    struct rt2860_rx_ring *);
+static void	rt2860_free_rx_ring(struct rt2860_softc *,
+		    struct rt2860_rx_ring *);
+static void	rt2860_updatestats(struct rt2860_softc *);
+static void	rt2860_newassoc(struct ieee80211_node *, int);
+static void	rt2860_node_free(struct ieee80211_node *);
+#ifdef IEEE80211_HT
+static int	rt2860_ampdu_rx_start(struct ieee80211com *,
+		    struct ieee80211_node *, uint8_t);
+static void	rt2860_ampdu_rx_stop(struct ieee80211com *,
+		    struct ieee80211_node *, uint8_t);
+#endif
+static int	rt2860_newstate(struct ieee80211vap *, enum ieee80211_state,
+		    int);
+static uint16_t	rt3090_efuse_read_2(struct rt2860_softc *, uint16_t);
+static uint16_t	rt2860_eeprom_read_2(struct rt2860_softc *, uint16_t);
+static void	rt2860_intr_coherent(struct rt2860_softc *);
+static void	rt2860_drain_stats_fifo(struct rt2860_softc *);
+static void	rt2860_tx_intr(struct rt2860_softc *, int);
+static void	rt2860_rx_intr(struct rt2860_softc *);
+static void	rt2860_tbtt_intr(struct rt2860_softc *);
+static void	rt2860_gp_intr(struct rt2860_softc *);
+static int	rt2860_tx(struct rt2860_softc *, struct mbuf *,
+		    struct ieee80211_node *);
+static int	rt2860_raw_xmit(struct ieee80211_node *, struct mbuf *,
+		    const struct ieee80211_bpf_params *);
+static int	rt2860_tx_raw(struct rt2860_softc *, struct mbuf *,
+		    struct ieee80211_node *,
+		    const struct ieee80211_bpf_params *params);
+static void	rt2860_start(struct ifnet *);
+static void	rt2860_start_locked(struct ifnet *);
+static void	rt2860_watchdog(void *);
+static int	rt2860_ioctl(struct ifnet *, u_long, caddr_t);
+static void	rt2860_mcu_bbp_write(struct rt2860_softc *, uint8_t, uint8_t);
+static uint8_t	rt2860_mcu_bbp_read(struct rt2860_softc *, uint8_t);
+static void	rt2860_rf_write(struct rt2860_softc *, uint8_t, uint32_t);
+static uint8_t	rt3090_rf_read(struct rt2860_softc *, uint8_t);
+static void	rt3090_rf_write(struct rt2860_softc *, uint8_t, uint8_t);
+static int	rt2860_mcu_cmd(struct rt2860_softc *, uint8_t, uint16_t, int);
+static void	rt2860_enable_mrr(struct rt2860_softc *);
+static void	rt2860_set_txpreamble(struct rt2860_softc *);
+static void	rt2860_set_basicrates(struct rt2860_softc *,
+		    const struct ieee80211_rateset *);
+static void	rt2860_scan_start(struct ieee80211com *);
+static void	rt2860_scan_end(struct ieee80211com *);
+static void	rt2860_set_channel(struct ieee80211com *);
+static void	rt2860_select_chan_group(struct rt2860_softc *, int);
+static void	rt2860_set_chan(struct rt2860_softc *, u_int);
+static void	rt3090_set_chan(struct rt2860_softc *, u_int);
+static int	rt3090_rf_init(struct rt2860_softc *);
+static void	rt3090_rf_wakeup(struct rt2860_softc *);
+static int	rt3090_filter_calib(struct rt2860_softc *, uint8_t, uint8_t,
+		    uint8_t *);
+static void	rt3090_rf_setup(struct rt2860_softc *);
+static void	rt2860_set_leds(struct rt2860_softc *, uint16_t);
+static void	rt2860_set_gp_timer(struct rt2860_softc *, int);
+static void	rt2860_set_bssid(struct rt2860_softc *, const uint8_t *);
+static void	rt2860_set_macaddr(struct rt2860_softc *, const uint8_t *);
+static void	rt2860_update_promisc(struct ifnet *);
+static void	rt2860_updateslot(struct ifnet *);
+static void	rt2860_updateprot(struct ifnet *);
+static int	rt2860_updateedca(struct ieee80211com *);
+#ifdef HW_CRYPTO
+static int	rt2860_set_key(struct ieee80211com *, struct ieee80211_node *,
+		    struct ieee80211_key *);
+static void	rt2860_delete_key(struct ieee80211com *,
+		    struct ieee80211_node *, struct ieee80211_key *);
+#endif
+static int8_t	rt2860_rssi2dbm(struct rt2860_softc *, uint8_t, uint8_t);
+static const char *rt2860_get_rf(uint8_t);
+static int	rt2860_read_eeprom(struct rt2860_softc *,
+		    uint8_t macaddr[IEEE80211_ADDR_LEN]);
+static int	rt2860_bbp_init(struct rt2860_softc *);
+static int	rt2860_txrx_enable(struct rt2860_softc *);
+static void	rt2860_init(void *);
+static void	rt2860_init_locked(struct rt2860_softc *);
+static void	rt2860_stop(void *);
+static void	rt2860_stop_locked(struct rt2860_softc *);
+static int	rt2860_load_microcode(struct rt2860_softc *);
+#ifdef NOT_YET
+static void	rt2860_calib(struct rt2860_softc *);
+#endif
+static void	rt3090_set_rx_antenna(struct rt2860_softc *, int);
+static void	rt2860_switch_chan(struct rt2860_softc *,
+		    struct ieee80211_channel *);
+static int	rt2860_setup_beacon(struct rt2860_softc *,
+		    struct ieee80211vap *);
+static void	rt2860_enable_tsf_sync(struct rt2860_softc *);
+
+static const struct {
+	uint32_t	reg;
+	uint32_t	val;
+} rt2860_def_mac[] = {
+	RT2860_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;
+} rt3090_freqs[] = {
+	RT3070_RF3052
+};
+
+static const struct {
+	uint8_t	reg;
+	uint8_t	val;
+}  rt3090_def_rf[] = {
+	RT3070_DEF_RF
+};
+
+int
+rt2860_attach(device_t dev, int id)
+{
+	struct rt2860_softc *sc = device_get_softc(dev);
+	struct ieee80211com *ic;
+	struct ifnet *ifp;
+	uint32_t tmp;
+	int error, ntries, qid;
+	uint8_t bands;
+	uint8_t macaddr[IEEE80211_ADDR_LEN];
+
+	sc->sc_dev = dev;
+	sc->sc_debug = 0;
+
+	ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
+	if (ifp == NULL) {
+		device_printf(sc->sc_dev, "can not if_alloc()\n");
+		return ENOMEM;
+	}
+	ic = ifp->if_l2com;
+
+	mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
+	    MTX_DEF | MTX_RECURSE);
+
+	callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
+
+	/* wait for NIC to initialize */
+	for (ntries = 0; ntries < 100; ntries++) {
+		tmp = RAL_READ(sc, RT2860_ASIC_VER_ID);
+		if (tmp != 0 && tmp != 0xffffffff)
+			break;
+		DELAY(10);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev,
+		    "timeout waiting for NIC to initialize\n");
+		error = EIO;
+		goto fail1;
+	}
+	sc->mac_ver = tmp >> 16;
+	sc->mac_rev = tmp & 0xffff;
+
+	if (sc->mac_ver != 0x2860 &&
+	    (id == 0x0681 || id == 0x0781 || id == 0x1059))
+		sc->sc_flags |= RT2860_ADVANCED_PS;
+
+	/* retrieve RF rev. no and various other things from EEPROM */
+	rt2860_read_eeprom(sc, macaddr);
+	if (bootverbose) {
+		device_printf(sc->sc_dev, "MAC/BBP RT%X (rev 0x%04X), "
+		    "RF %s (MIMO %dT%dR), address %6D\n",
+		    sc->mac_ver, sc->mac_rev, rt2860_get_rf(sc->rf_rev),
+		    sc->ntxchains, sc->nrxchains, macaddr, ":");
+	}
+
+	/*
+	 * Allocate Tx (4 EDCAs + HCCA + Mgt) and Rx rings.
+	 */
+	for (qid = 0; qid < 6; qid++) {
+		if ((error = rt2860_alloc_tx_ring(sc, &sc->txq[qid])) != 0) {
+			device_printf(sc->sc_dev,
+			    "could not allocate Tx ring %d\n", qid);
+			goto fail2;
+		}
+	}
+
+	if ((error = rt2860_alloc_rx_ring(sc, &sc->rxq)) != 0) {
+		device_printf(sc->sc_dev, "could not allocate Rx ring\n");
+		goto fail2;
+	}
+
+	if ((error = rt2860_alloc_tx_pool(sc)) != 0) {
+		device_printf(sc->sc_dev, "could not allocate Tx pool\n");
+		goto fail3;
+	}
+
+	/* mgmt ring is broken on RT2860C, use EDCA AC VO ring instead */
+	sc->mgtqid = (sc->mac_ver == 0x2860 && sc->mac_rev == 0x0100) ?
+	    WME_AC_VO : 5;
+
+	ifp->if_softc = sc;
+	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
+	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
+	ifp->if_init = rt2860_init;
+	ifp->if_ioctl = rt2860_ioctl;
+	ifp->if_start = rt2860_start;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
+	IFQ_SET_READY(&ifp->if_snd);
+
+	ic->ic_ifp = ifp;
+	ic->ic_opmode = IEEE80211_M_STA;
+	ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
+
+	/* set device capabilities */
+	ic->ic_caps =
+		  IEEE80211_C_STA		/* station mode */
+		| IEEE80211_C_IBSS		/* ibss, nee adhoc, mode */
+		| IEEE80211_C_HOSTAP		/* hostap mode */
+		| IEEE80211_C_MONITOR		/* monitor mode */
+		| IEEE80211_C_AHDEMO		/* adhoc demo mode */
+		| IEEE80211_C_WDS		/* 4-address traffic works */
+		| IEEE80211_C_MBSS		/* mesh point link mode */
+		| IEEE80211_C_SHPREAMBLE	/* short preamble supported */
+		| IEEE80211_C_SHSLOT		/* short slot time supported */
+		| IEEE80211_C_WPA		/* capable of WPA1+WPA2 */
+#if 0
+		| IEEE80211_C_BGSCAN		/* capable of bg scanning */
+#endif
+		| IEEE80211_C_WME		/* 802.11e */
+		;
+
+	bands = 0;
+	setbit(&bands, IEEE80211_MODE_11B);
+	setbit(&bands, IEEE80211_MODE_11G);
+	if (sc->rf_rev == RT2860_RF_2750 || sc->rf_rev == RT2860_RF_2850)
+		setbit(&bands, IEEE80211_MODE_11A);
+	ieee80211_init_channels(ic, NULL, &bands);
+
+	ieee80211_ifattach(ic, macaddr);
+
+	ic->ic_wme.wme_update = rt2860_updateedca;
+	ic->ic_scan_start = rt2860_scan_start;
+	ic->ic_scan_end = rt2860_scan_end;
+	ic->ic_set_channel = rt2860_set_channel;
+	ic->ic_updateslot = rt2860_updateslot;
+	ic->ic_update_promisc = rt2860_update_promisc;
+	ic->ic_raw_xmit = rt2860_raw_xmit;
+	sc->sc_node_free = ic->ic_node_free;
+	ic->ic_node_free = rt2860_node_free;
+	ic->ic_newassoc = rt2860_newassoc;
+
+	ic->ic_vap_create = rt2860_vap_create;
+	ic->ic_vap_delete = rt2860_vap_delete;
+
+	ieee80211_radiotap_attach(ic,
+	    &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
+		RT2860_TX_RADIOTAP_PRESENT,
+	    &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
+		RT2860_RX_RADIOTAP_PRESENT);
+
+#ifdef RAL_DEBUG
+	SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
+	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
+	    "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
+#endif
+	if (bootverbose)
+		ieee80211_announce(ic);
+
+	return 0;
+
+fail3:	rt2860_free_rx_ring(sc, &sc->rxq);
+fail2:	while (--qid >= 0)
+		rt2860_free_tx_ring(sc, &sc->txq[qid]);
+fail1:	mtx_destroy(&sc->sc_mtx);
+	if_free(ifp);
+	return error;
+}
+
+int
+rt2860_detach(void *xsc)
+{
+	struct rt2860_softc *sc = xsc;
+	struct ifnet *ifp =  sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	int qid;
+
+	RAL_LOCK(sc);
+	rt2860_stop_locked(sc);
+	RAL_UNLOCK(sc);
+
+	ieee80211_ifdetach(ic);
+
+	for (qid = 0; qid < 6; qid++)
+		rt2860_free_tx_ring(sc, &sc->txq[qid]);
+	rt2860_free_rx_ring(sc, &sc->rxq);
+	rt2860_free_tx_pool(sc);
+
+	if_free(ifp);
+
+	mtx_destroy(&sc->sc_mtx);
+
+	return 0;
+}
+
+void
+rt2860_shutdown(void *xsc)
+{
+	struct rt2860_softc *sc = xsc;
+
+	rt2860_stop(sc);
+}
+
+void
+rt2860_suspend(void *xsc)
+{
+	struct rt2860_softc *sc = xsc;
+
+	rt2860_stop(sc);
+}
+
+void
+rt2860_resume(void *xsc)
+{
+	struct rt2860_softc *sc = xsc;
+	struct ifnet *ifp = sc->sc_ifp;
+
+	if (ifp->if_flags & IFF_UP)
+		rt2860_init(sc);
+}
+
+static struct ieee80211vap *
+rt2860_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
+    enum ieee80211_opmode opmode, int flags,
+    const uint8_t bssid[IEEE80211_ADDR_LEN],
+    const uint8_t mac[IEEE80211_ADDR_LEN])
+{
+	struct ifnet *ifp = ic->ic_ifp;
+	struct rt2860_vap *rvp;
+	struct ieee80211vap *vap;
+
+	switch (opmode) {
+	case IEEE80211_M_STA:
+	case IEEE80211_M_IBSS:
+	case IEEE80211_M_AHDEMO:
+	case IEEE80211_M_MONITOR:
+	case IEEE80211_M_HOSTAP:
+	case IEEE80211_M_MBSS:
+		/* XXXRP: TBD */
+		if (!TAILQ_EMPTY(&ic->ic_vaps)) {
+			if_printf(ifp, "only 1 vap supported\n");
+			return NULL;
+		}
+		if (opmode == IEEE80211_M_STA)
+			flags |= IEEE80211_CLONE_NOBEACONS;
+		break;
+	case IEEE80211_M_WDS:
+		if (TAILQ_EMPTY(&ic->ic_vaps) ||
+		    ic->ic_opmode != IEEE80211_M_HOSTAP) {
+			if_printf(ifp, "wds only supported in ap mode\n");
+			return NULL;
+		}
+		/*
+		 * Silently remove any request for a unique
+		 * bssid; WDS vap's always share the local
+		 * mac address.
+		 */
+		flags &= ~IEEE80211_CLONE_BSSID;
+		break;
+	default:
+		if_printf(ifp, "unknown opmode %d\n", opmode);
+		return NULL;
+	}
+	rvp = malloc(sizeof(struct rt2860_vap), M_80211_VAP, M_NOWAIT | M_ZERO);
+	if (rvp == NULL)
+		return NULL;
+	vap = &rvp->ral_vap;
+	ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
+
+	/* override state transition machine */
+	rvp->ral_newstate = vap->iv_newstate;
+	vap->iv_newstate = rt2860_newstate;
+#if 0
+	vap->iv_update_beacon = rt2860_beacon_update;
+#endif
+
+	/* HW supports up to 255 STAs (0-254) in HostAP and IBSS modes */
+	vap->iv_max_aid = min(IEEE80211_AID_MAX, RT2860_WCID_MAX);
+
+	ieee80211_ratectl_init(vap);
+	/* complete setup */
+	ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
+	if (TAILQ_FIRST(&ic->ic_vaps) == vap)
+		ic->ic_opmode = opmode;
+	return vap;
+}
+
+static void
+rt2860_vap_delete(struct ieee80211vap *vap)
+{
+	struct rt2860_vap *rvp = RT2860_VAP(vap);
+
+	ieee80211_ratectl_deinit(vap);
+	ieee80211_vap_detach(vap);
+	free(rvp, M_80211_VAP);
+}
+
+static void
+rt2860_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
+{
+	if (error != 0)
+		return;
+
+	KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
+
+	*(bus_addr_t *)arg = segs[0].ds_addr;
+}
+
+
+static int
+rt2860_alloc_tx_ring(struct rt2860_softc *sc, struct rt2860_tx_ring *ring)
+{
+	int size, error;
+
+	size = RT2860_TX_RING_COUNT * sizeof (struct rt2860_txd);
+
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 16, 0,
+	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
+	    size, 1, size, 0, NULL, NULL, &ring->desc_dmat);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not create desc DMA map\n");
+		goto fail;
+	}
+
+	error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->txd,
+	    BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not allocate DMA memory\n");
+		goto fail;
+	}
+
+	error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->txd,
+	    size, rt2860_dma_map_addr, &ring->paddr, 0);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not load desc DMA map\n");
+		goto fail;
+	}
+
+	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
+
+	return 0;
+
+fail:	rt2860_free_tx_ring(sc, ring);
+	return error;
+}
+
+void
+rt2860_reset_tx_ring(struct rt2860_softc *sc, struct rt2860_tx_ring *ring)
+{
+	struct rt2860_tx_data *data;
+	int i;
+
+	for (i = 0; i < RT2860_TX_RING_COUNT; i++) {
+		if ((data = ring->data[i]) == NULL)
+			continue;	/* nothing mapped in this slot */
+
+		if (data->m != NULL) {
+			bus_dmamap_sync(sc->txwi_dmat, data->map,
+			    BUS_DMASYNC_POSTWRITE);
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			m_freem(data->m);
+			data->m = NULL;
+		}
+		if (data->ni != NULL) {
+			ieee80211_free_node(data->ni);
+			data->ni = NULL;
+		}
+
+		SLIST_INSERT_HEAD(&sc->data_pool, data, next);
+		ring->data[i] = NULL;
+	}
+
+	ring->queued = 0;
+	ring->cur = ring->next = 0;
+}
+
+void
+rt2860_free_tx_ring(struct rt2860_softc *sc, struct rt2860_tx_ring *ring)
+{
+	struct rt2860_tx_data *data;
+	int i;
+
+	if (ring->txd != NULL) {
+		bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
+		    BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
+		bus_dmamem_free(ring->desc_dmat, ring->txd, ring->desc_map);
+	}
+	if (ring->desc_dmat != NULL)
+		bus_dma_tag_destroy(ring->desc_dmat);
+
+	for (i = 0; i < RT2860_TX_RING_COUNT; i++) {
+		if ((data = ring->data[i]) == NULL)
+			continue;	/* nothing mapped in this slot */
+
+		if (data->m != NULL) {
+			bus_dmamap_sync(sc->txwi_dmat, data->map,
+			    BUS_DMASYNC_POSTWRITE);
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			m_freem(data->m);
+		}
+		if (data->ni != NULL)
+			ieee80211_free_node(data->ni);
+
+		SLIST_INSERT_HEAD(&sc->data_pool, data, next);
+	}
+}
+
+/*
+ * Allocate a pool of TX Wireless Information blocks.
+ */
+int
+rt2860_alloc_tx_pool(struct rt2860_softc *sc)
+{
+	caddr_t vaddr;
+	bus_addr_t paddr;
+	int i, size, error;
+
+	size = RT2860_TX_POOL_COUNT * RT2860_TXWI_DMASZ;
+
+	/* init data_pool early in case of failure.. */
+	SLIST_INIT(&sc->data_pool);
+
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
+	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
+	    size, 1, size, 0, NULL, NULL, &sc->txwi_dmat);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not create txwi DMA tag\n");
+		goto fail;
+	}
+
+	error = bus_dmamem_alloc(sc->txwi_dmat, (void **)&sc->txwi_vaddr,
+	    BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->txwi_map);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not allocate DMA memory\n");
+		goto fail;
+	}
+
+	error = bus_dmamap_load(sc->txwi_dmat, sc->txwi_map,
+	    sc->txwi_vaddr, size, rt2860_dma_map_addr, &paddr, 0);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not load txwi DMA map\n");
+		goto fail;
+	}
+
+	bus_dmamap_sync(sc->txwi_dmat, sc->txwi_map, BUS_DMASYNC_PREWRITE);
+
+	vaddr = sc->txwi_vaddr;
+	for (i = 0; i < RT2860_TX_POOL_COUNT; i++) {
+		struct rt2860_tx_data *data = &sc->data[i];
+
+		error = bus_dmamap_create(sc->txwi_dmat, 0, &data->map);
+		if (error != 0) {
+			device_printf(sc->sc_dev, "could not create DMA map\n");
+			goto fail;
+		}
+		data->txwi = (struct rt2860_txwi *)vaddr;
+		data->paddr = paddr;
+		vaddr += RT2860_TXWI_DMASZ;
+		paddr += RT2860_TXWI_DMASZ;
+
+		SLIST_INSERT_HEAD(&sc->data_pool, data, next);
+	}
+
+	return 0;
+
+fail:	rt2860_free_tx_pool(sc);
+	return error;
+}
+
+void
+rt2860_free_tx_pool(struct rt2860_softc *sc)
+{
+	if (sc->txwi_vaddr != NULL) {
+		bus_dmamap_sync(sc->txwi_dmat, sc->txwi_map,
+		    BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(sc->txwi_dmat, sc->txwi_map);
+		bus_dmamem_free(sc->txwi_dmat, sc->txwi_vaddr, sc->txwi_map);
+	}
+	if (sc->txwi_dmat != NULL)
+		bus_dma_tag_destroy(sc->txwi_dmat);
+
+	while (!SLIST_EMPTY(&sc->data_pool)) {
+		struct rt2860_tx_data *data;
+		data = SLIST_FIRST(&sc->data_pool);
+		bus_dmamap_destroy(sc->txwi_dmat, data->map);
+		SLIST_REMOVE_HEAD(&sc->data_pool, next);
+	}
+}
+
+int
+rt2860_alloc_rx_ring(struct rt2860_softc *sc, struct rt2860_rx_ring *ring)
+{
+	bus_addr_t physaddr;
+	int i, size, error;
+
+	size = RT2860_RX_RING_COUNT * sizeof (struct rt2860_rxd);
+
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 16, 0,
+	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
+	    size, 1, size, 0, NULL, NULL, &ring->desc_dmat);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not create desc DMA tag\n");
+		goto fail;
+	}
+
+	error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->rxd,
+	    BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not allocate DMA memory\n");
+		goto fail;
+	}
+
+	error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->rxd,
+	    size, rt2860_dma_map_addr, &ring->paddr, 0);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not load desc DMA map\n");
+		goto fail;
+	}
+
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
+	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
+	    1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not create data DMA tag\n");
+		goto fail;
+	}
+
+	for (i = 0; i < RT2860_RX_RING_COUNT; i++) {
+		struct rt2860_rx_data *data = &ring->data[i];
+		struct rt2860_rxd *rxd = &ring->rxd[i];
+
+		error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
+		if (error != 0) {
+			device_printf(sc->sc_dev, "could not create DMA map\n");
+			goto fail;
+		}
+
+		data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
+		if (data->m == NULL) {
+			device_printf(sc->sc_dev,
+			    "could not allocate rx mbuf\n");
+			error = ENOMEM;
+			goto fail;
+		}
+
+		error = bus_dmamap_load(ring->data_dmat, data->map,
+		    mtod(data->m, void *), MCLBYTES, rt2860_dma_map_addr,
+		    &physaddr, 0);
+		if (error != 0) {
+			device_printf(sc->sc_dev,
+			    "could not load rx buf DMA map");
+			goto fail;
+		}
+
+		rxd->sdp0 = htole32(physaddr);
+		rxd->sdl0 = htole16(MCLBYTES);
+	}
+
+	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
+
+	return 0;
+
+fail:	rt2860_free_rx_ring(sc, ring);
+	return error;
+}
+
+void
+rt2860_reset_rx_ring(struct rt2860_softc *sc, struct rt2860_rx_ring *ring)
+{
+	int i;
+
+	for (i = 0; i < RT2860_RX_RING_COUNT; i++)
+		ring->rxd[i].sdl0 &= ~htole16(RT2860_RX_DDONE);
+
+	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
+
+	ring->cur = 0;
+}
+
+void
+rt2860_free_rx_ring(struct rt2860_softc *sc, struct rt2860_rx_ring *ring)
+{
+	int i;
+
+	if (ring->rxd != NULL) {
+		bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
+		    BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
+		bus_dmamem_free(ring->desc_dmat, ring->rxd, ring->desc_map);
+	}
+	if (ring->desc_dmat != NULL)
+		bus_dma_tag_destroy(ring->desc_dmat);
+
+	for (i = 0; i < RT2860_RX_RING_COUNT; i++) {
+		struct rt2860_rx_data *data = &ring->data[i];
+
+		if (data->m != NULL) {
+			bus_dmamap_sync(ring->data_dmat, data->map,
+			    BUS_DMASYNC_POSTREAD);
+			bus_dmamap_unload(ring->data_dmat, data->map);
+			m_freem(data->m);
+		}
+		if (data->map != NULL)
+			bus_dmamap_destroy(ring->data_dmat, data->map);
+	}
+	if (ring->data_dmat != NULL)
+		bus_dma_tag_destroy(ring->data_dmat);
+}
+
+static void
+rt2860_updatestats(struct rt2860_softc *sc)
+{
+	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
+
+	/*
+	 * In IBSS or HostAP modes (when the hardware sends beacons), the
+	 * MAC can run into a livelock and start sending CTS-to-self frames
+	 * like crazy if protection is enabled.  Fortunately, we can detect
+	 * when such a situation occurs and reset the MAC.
+	 */
+	if (ic->ic_curmode != IEEE80211_M_STA) {
+		/* check if we're in a livelock situation.. */
+		uint32_t tmp = RAL_READ(sc, RT2860_DEBUG);
+		if ((tmp & (1 << 29)) && (tmp & (1 << 7 | 1 << 5))) {
+			/* ..and reset MAC/BBP for a while.. */
+			DPRINTF(("CTS-to-self livelock detected\n"));
+			RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, RT2860_MAC_SRST);
+			RAL_BARRIER_WRITE(sc);
+			DELAY(1);
+			RAL_WRITE(sc, RT2860_MAC_SYS_CTRL,
+			    RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
+		}
+	}
+}
+
+static void
+rt2860_newassoc(struct ieee80211_node *ni, int isnew)
+{
+	struct ieee80211com *ic = ni->ni_ic;
+	struct rt2860_softc *sc = ic->ic_ifp->if_softc;
+	uint8_t wcid;
+
+	wcid = IEEE80211_AID(ni->ni_associd);
+	if (isnew && ni->ni_associd != 0) {
+		sc->wcid2ni[wcid] = ni;
+
+		/* init WCID table entry */
+		RAL_WRITE_REGION_1(sc, RT2860_WCID_ENTRY(wcid),
+		    ni->ni_macaddr, IEEE80211_ADDR_LEN);
+	}
+	DPRINTF(("new assoc isnew=%d addr=%s WCID=%d\n",
+	    isnew, ether_sprintf(ni->ni_macaddr), wcid));
+}
+
+static void
+rt2860_node_free(struct ieee80211_node *ni)
+{
+	struct ieee80211com *ic = ni->ni_ic;
+	struct rt2860_softc *sc = ic->ic_ifp->if_softc;
+	uint8_t wcid;
+
+	if (ni->ni_associd != 0) {
+		wcid = IEEE80211_AID(ni->ni_associd);
+
+		/* clear Rx WCID search table entry */
+		RAL_SET_REGION_4(sc, RT2860_WCID_ENTRY(wcid), 0, 2);
+	}
+	sc->sc_node_free(ni);
+}
+
+#ifdef IEEE80211_HT
+static int
+rt2860_ampdu_rx_start(struct ieee80211com *ic, struct ieee80211_node *ni,
+    uint8_t tid)
+{
+	struct rt2860_softc *sc = ic->ic_softc;
+	uint8_t wcid = ((struct rt2860_node *)ni)->wcid;
+	uint32_t tmp;
+
+	/* update BA session mask */
+	tmp = RAL_READ(sc, RT2860_WCID_ENTRY(wcid) + 4);
+	tmp |= (1 << tid) << 16;
+	RAL_WRITE(sc, RT2860_WCID_ENTRY(wcid) + 4, tmp);
+	return 0;
+}
+
+static void
+rt2860_ampdu_rx_stop(struct ieee80211com *ic, struct ieee80211_node *ni,
+    uint8_t tid)
+{
+	struct rt2860_softc *sc = ic->ic_softc;
+	uint8_t wcid = ((struct rt2860_node *)ni)->wcid;
+	uint32_t tmp;
+
+	/* update BA session mask */
+	tmp = RAL_READ(sc, RT2860_WCID_ENTRY(wcid) + 4);
+	tmp &= ~((1 << tid) << 16);
+	RAL_WRITE(sc, RT2860_WCID_ENTRY(wcid) + 4, tmp);
+}
+#endif
+
+int
+rt2860_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
+{
+	struct rt2860_vap *rvp = RT2860_VAP(vap);
+	struct ieee80211com *ic = vap->iv_ic;
+	struct rt2860_softc *sc = ic->ic_ifp->if_softc;
+	uint32_t tmp;
+	int error;
+
+	if (vap->iv_state == IEEE80211_S_RUN) {
+		/* turn link LED off */
+		rt2860_set_leds(sc, RT2860_LED_RADIO);
+	}
+
+	if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
+		/* abort TSF synchronization */
+		tmp = RAL_READ(sc, RT2860_BCN_TIME_CFG);
+		RAL_WRITE(sc, RT2860_BCN_TIME_CFG,
+		    tmp & ~(RT2860_BCN_TX_EN | RT2860_TSF_TIMER_EN |
+		    RT2860_TBTT_TIMER_EN));
+	}
+
+	rt2860_set_gp_timer(sc, 0);
+
+	error = rvp->ral_newstate(vap, nstate, arg);
+	if (error != 0)
+		return (error);
+
+	if (nstate == IEEE80211_S_RUN) {
+		struct ieee80211_node *ni = vap->iv_bss;
+
+		if (ic->ic_opmode != IEEE80211_M_MONITOR) {
+			rt2860_enable_mrr(sc);
+			rt2860_set_txpreamble(sc);
+			rt2860_set_basicrates(sc, &ni->ni_rates);
+			rt2860_set_bssid(sc, ni->ni_bssid);
+		}
+
+		if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
+		    vap->iv_opmode == IEEE80211_M_IBSS ||
+		    vap->iv_opmode == IEEE80211_M_MBSS) {
+			error = rt2860_setup_beacon(sc, vap);
+			if (error != 0)
+				return error;
+		}
+
+		if (ic->ic_opmode != IEEE80211_M_MONITOR) {
+			rt2860_enable_tsf_sync(sc);
+			rt2860_set_gp_timer(sc, 500);
+		}
+
+		/* turn link LED on */
+		rt2860_set_leds(sc, RT2860_LED_RADIO |
+		    (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan) ?
+		     RT2860_LED_LINK_2GHZ : RT2860_LED_LINK_5GHZ));
+	}
+	return error;
+}
+
+/* Read 16-bit from eFUSE ROM (>=RT3071 only.) */
+static uint16_t
+rt3090_efuse_read_2(struct rt2860_softc *sc, uint16_t addr)
+{
+	uint32_t tmp;
+	uint16_t reg;
+	int ntries;
+
+	addr *= 2;
+	/*-
+	 * Read one 16-byte block into registers EFUSE_DATA[0-3]:
+	 * DATA0: F E D C
+	 * DATA1: B A 9 8
+	 * DATA2: 7 6 5 4
+	 * DATA3: 3 2 1 0
+	 */
+	tmp = RAL_READ(sc, RT3070_EFUSE_CTRL);
+	tmp &= ~(RT3070_EFSROM_MODE_MASK | RT3070_EFSROM_AIN_MASK);
+	tmp |= (addr & ~0xf) << RT3070_EFSROM_AIN_SHIFT | RT3070_EFSROM_KICK;
+	RAL_WRITE(sc, RT3070_EFUSE_CTRL, tmp);
+	for (ntries = 0; ntries < 500; ntries++) {
+		tmp = RAL_READ(sc, RT3070_EFUSE_CTRL);
+		if (!(tmp & RT3070_EFSROM_KICK))
+			break;
+		DELAY(2);
+	}
+	if (ntries == 500)
+		return 0xffff;
+
+	if ((tmp & RT3070_EFUSE_AOUT_MASK) == RT3070_EFUSE_AOUT_MASK)
+		return 0xffff;	/* address not found */
+
+	/* determine to which 32-bit register our 16-bit word belongs */
+	reg = RT3070_EFUSE_DATA3 - (addr & 0xc);
+	tmp = RAL_READ(sc, reg);
+
+	return (addr & 2) ? tmp >> 16 : tmp & 0xffff;
+}
+
+/*
+ * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46,
+ * 93C66 or 93C86).
+ */
+static uint16_t
+rt2860_eeprom_read_2(struct rt2860_softc *sc, uint16_t addr)
+{
+	uint32_t tmp;
+	uint16_t val;
+	int n;
+
+	/* clock C once before the first command */
+	RT2860_EEPROM_CTL(sc, 0);
+
+	RT2860_EEPROM_CTL(sc, RT2860_S);
+	RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_C);
+	RT2860_EEPROM_CTL(sc, RT2860_S);
+
+	/* write start bit (1) */
+	RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D);
+	RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D | RT2860_C);
+
+	/* write READ opcode (10) */
+	RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D);
+	RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_D | RT2860_C);
+	RT2860_EEPROM_CTL(sc, RT2860_S);
+	RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_C);
+
+	/* write address (A5-A0 or A7-A0) */
+	n = ((RAL_READ(sc, RT2860_PCI_EECTRL) & 0x30) == 0) ? 5 : 7;
+	for (; n >= 0; n--) {
+		RT2860_EEPROM_CTL(sc, RT2860_S |
+		    (((addr >> n) & 1) << RT2860_SHIFT_D));
+		RT2860_EEPROM_CTL(sc, RT2860_S |
+		    (((addr >> n) & 1) << RT2860_SHIFT_D) | RT2860_C);
+	}
+
+	RT2860_EEPROM_CTL(sc, RT2860_S);
+
+	/* read data Q15-Q0 */
+	val = 0;
+	for (n = 15; n >= 0; n--) {
+		RT2860_EEPROM_CTL(sc, RT2860_S | RT2860_C);
+		tmp = RAL_READ(sc, RT2860_PCI_EECTRL);
+		val |= ((tmp & RT2860_Q) >> RT2860_SHIFT_Q) << n;
+		RT2860_EEPROM_CTL(sc, RT2860_S);
+	}
+
+	RT2860_EEPROM_CTL(sc, 0);
+
+	/* clear Chip Select and clock C */
+	RT2860_EEPROM_CTL(sc, RT2860_S);
+	RT2860_EEPROM_CTL(sc, 0);
+	RT2860_EEPROM_CTL(sc, RT2860_C);
+
+	return val;
+}
+
+static __inline uint16_t
+rt2860_srom_read(struct rt2860_softc *sc, uint8_t addr)
+{
+	/* either eFUSE ROM or EEPROM */
+	return sc->sc_srom_read(sc, addr);
+}
+
+static void
+rt2860_intr_coherent(struct rt2860_softc *sc)
+{
+	uint32_t tmp;
+
+	/* DMA finds data coherent event when checking the DDONE bit */
+
+	DPRINTF(("Tx/Rx Coherent interrupt\n"));
+
+	/* restart DMA engine */
+	tmp = RAL_READ(sc, RT2860_WPDMA_GLO_CFG);
+	tmp &= ~(RT2860_TX_WB_DDONE | RT2860_RX_DMA_EN | RT2860_TX_DMA_EN);
+	RAL_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	(void)rt2860_txrx_enable(sc);
+}
+
+static void
+rt2860_drain_stats_fifo(struct rt2860_softc *sc)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211_node *ni;
+	uint32_t stat;
+	int retrycnt;
+	uint8_t wcid, mcs, pid;
+
+	/* drain Tx status FIFO (maxsize = 16) */
+	while ((stat = RAL_READ(sc, RT2860_TX_STAT_FIFO)) & RT2860_TXQ_VLD) {
+		DPRINTFN(4, ("tx stat 0x%08x\n", stat));
+
+		wcid = (stat >> RT2860_TXQ_WCID_SHIFT) & 0xff;
+		ni = sc->wcid2ni[wcid];
+
+		/* if no ACK was requested, no feedback is available */
+		if (!(stat & RT2860_TXQ_ACKREQ) || wcid == 0xff || ni == NULL)
+			continue;
+
+		/* update per-STA AMRR stats */
+		if (stat & RT2860_TXQ_OK) {
+			/*
+			 * Check if there were retries, ie if the Tx success
+			 * rate is different from the requested rate.  Note
+			 * that it works only because we do not allow rate
+			 * fallback from OFDM to CCK.
+			 */
+			mcs = (stat >> RT2860_TXQ_MCS_SHIFT) & 0x7f;
+			pid = (stat >> RT2860_TXQ_PID_SHIFT) & 0xf;
+			if (mcs + 1 != pid)
+				retrycnt = 1;
+			else
+				retrycnt = 0;
+			ieee80211_ratectl_tx_complete(ni->ni_vap, ni,
+			    IEEE80211_RATECTL_TX_SUCCESS, &retrycnt, NULL);
+		} else {
+			ieee80211_ratectl_tx_complete(ni->ni_vap, ni,
+			    IEEE80211_RATECTL_TX_FAILURE, &retrycnt, NULL);
+			ifp->if_oerrors++;
+		}
+	}
+}
+
+static void
+rt2860_tx_intr(struct rt2860_softc *sc, int qid)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct rt2860_tx_ring *ring = &sc->txq[qid];
+	uint32_t hw;
+
+	rt2860_drain_stats_fifo(sc);
+
+	hw = RAL_READ(sc, RT2860_TX_DTX_IDX(qid));
+	while (ring->next != hw) {
+		struct rt2860_tx_data *data = ring->data[ring->next];
+
+		if (data != NULL) {
+			bus_dmamap_sync(sc->txwi_dmat, data->map,
+			    BUS_DMASYNC_POSTWRITE);
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			if (data->m->m_flags & M_TXCB) {
+				ieee80211_process_callback(data->ni, data->m,
+				    0);
+			}
+			m_freem(data->m);
+			ieee80211_free_node(data->ni);
+			data->m = NULL;
+			data->ni = NULL;
+
+			SLIST_INSERT_HEAD(&sc->data_pool, data, next);
+			ring->data[ring->next] = NULL;
+
+			ifp->if_opackets++;
+		}
+		ring->queued--;
+		ring->next = (ring->next + 1) % RT2860_TX_RING_COUNT;
+	}
+
+	sc->sc_tx_timer = 0;
+	if (ring->queued < RT2860_TX_RING_COUNT)
+		sc->qfullmsk &= ~(1 << qid);
+	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+	rt2860_start_locked(ifp);
+}
+
+/*
+ * Return the Rx chain with the highest RSSI for a given frame.
+ */
+static __inline uint8_t
+rt2860_maxrssi_chain(struct rt2860_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;
+}
+
+static void
+rt2860_rx_intr(struct rt2860_softc *sc)
+{
+	struct rt2860_rx_radiotap_header *tap;
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	struct ieee80211_frame *wh;
+	struct ieee80211_node *ni;
+	struct mbuf *m, *m1;
+	bus_addr_t physaddr;
+	uint32_t hw;
+	uint16_t phy;
+	uint8_t ant;
+	int8_t rssi, nf;
+	int error;
+
+	hw = RAL_READ(sc, RT2860_FS_DRX_IDX) & 0xfff;
+	while (sc->rxq.cur != hw) {
+		struct rt2860_rx_data *data = &sc->rxq.data[sc->rxq.cur];
+		struct rt2860_rxd *rxd = &sc->rxq.rxd[sc->rxq.cur];
+		struct rt2860_rxwi *rxwi;
+
+		bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
+		    BUS_DMASYNC_POSTREAD);
+
+		if (__predict_false(!(rxd->sdl0 & htole16(RT2860_RX_DDONE)))) {
+			DPRINTF(("RXD DDONE bit not set!\n"));
+			break;	/* should not happen */
+		}
+
+		if (__predict_false(rxd->flags &
+		    htole32(RT2860_RX_CRCERR | RT2860_RX_ICVERR))) {
+			ifp->if_ierrors++;
+			goto skip;
+		}
+
+#ifdef HW_CRYPTO
+		if (__predict_false(rxd->flags & htole32(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++;
+			goto skip;
+		}
+#endif
+
+		m1 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
+		if (__predict_false(m1 == NULL)) {
+			ifp->if_ierrors++;
+			goto skip;
+		}
+
+		bus_dmamap_sync(sc->rxq.data_dmat, data->map,
+		    BUS_DMASYNC_POSTREAD);
+		bus_dmamap_unload(sc->rxq.data_dmat, data->map);
+
+		error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
+		    mtod(m1, void *), MCLBYTES, rt2860_dma_map_addr,
+		    &physaddr, 0);
+		if (__predict_false(error != 0)) {
+			m_freem(m1);
+
+			/* try to reload the old mbuf */
+			error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
+			    mtod(data->m, void *), MCLBYTES,
+			    rt2860_dma_map_addr, &physaddr, 0);
+			if (__predict_false(error != 0)) {
+				panic("%s: could not load old rx mbuf",
+				    device_get_name(sc->sc_dev));
+			}
+			/* physical address may have changed */
+			rxd->sdp0 = htole32(physaddr);
+			ifp->if_ierrors++;
+			goto skip;
+		}
+
+		/*
+		 * New mbuf successfully loaded, update Rx ring and continue
+		 * processing.
+		 */
+		m = data->m;
+		data->m = m1;
+		rxd->sdp0 = htole32(physaddr);
+
+		rxwi = mtod(m, struct rt2860_rxwi *);
+
+		/* finalize mbuf */
+		m->m_pkthdr.rcvif = ifp;
+		m->m_data = (caddr_t)(rxwi + 1);
+		m->m_pkthdr.len = m->m_len = le16toh(rxwi->len) & 0xfff;
+
+		wh = mtod(m, struct ieee80211_frame *);
+#ifdef HW_CRYPTO
+		if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
+			/* frame is decrypted by hardware */
+			wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
+		}
+#endif
+
+		/* HW may insert 2 padding bytes after 802.11 header */
+		if (rxd->flags & htole32(RT2860_RX_L2PAD)) {
+			u_int hdrlen = ieee80211_hdrsize(wh);
+			ovbcopy(wh, (caddr_t)wh + 2, hdrlen);
+			m->m_data += 2;
+			wh = mtod(m, struct ieee80211_frame *);
+		}
+
+		ant = rt2860_maxrssi_chain(sc, rxwi);
+		rssi = rt2860_rssi2dbm(sc, rxwi->rssi[ant], ant);
+		nf = RT2860_NOISE_FLOOR;
+
+		if (ieee80211_radiotap_active(ic)) {
+			tap = &sc->sc_rxtap;
+			tap->wr_flags = 0;
+			tap->wr_antenna = ant;
+			tap->wr_antsignal = nf + rssi;
+			tap->wr_antnoise = nf;
+			/* in case it can't be found below */
+			tap->wr_rate = 2;
+			phy = le16toh(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;
+			}
+		}
+
+		RAL_UNLOCK(sc);
+		wh = mtod(m, struct ieee80211_frame *);
+
+		/* send the frame to the 802.11 layer */
+		ni = ieee80211_find_rxnode(ic,
+		    (struct ieee80211_frame_min *)wh);
+		if (ni != NULL) {
+			(void)ieee80211_input(ni, m, rssi - nf, nf);
+			ieee80211_free_node(ni);
+		} else
+			(void)ieee80211_input_all(ic, m, rssi - nf, nf);
+
+		RAL_LOCK(sc);
+
+skip:		rxd->sdl0 &= ~htole16(RT2860_RX_DDONE);
+
+		bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
+		    BUS_DMASYNC_PREWRITE);
+
+		sc->rxq.cur = (sc->rxq.cur + 1) % RT2860_RX_RING_COUNT;
+	}
+
+	/* tell HW what we have processed */
+	RAL_WRITE(sc, RT2860_RX_CALC_IDX,
+	    (sc->rxq.cur - 1) % RT2860_RX_RING_COUNT);
+}
+
+static void
+rt2860_tbtt_intr(struct rt2860_softc *sc)
+{
+#if 0
+	struct ieee80211com *ic = &sc->sc_ic;
+
+#ifndef IEEE80211_STA_ONLY
+	if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
+		/* one less beacon until next DTIM */
+		if (ic->ic_dtim_count == 0)
+			ic->ic_dtim_count = ic->ic_dtim_period - 1;
+		else
+			ic->ic_dtim_count--;
+
+		/* update dynamic parts of beacon */
+		rt2860_setup_beacon(sc);
+
+		/* flush buffered multicast frames */
+		if (ic->ic_dtim_count == 0)
+			ieee80211_notify_dtim(ic);
+	}
+#endif
+	/* check if protection mode has changed */
+	if ((sc->sc_ic_flags ^ ic->ic_flags) & IEEE80211_F_USEPROT) {
+		rt2860_updateprot(ic);
+		sc->sc_ic_flags = ic->ic_flags;
+	}
+#endif
+}
+
+static void
+rt2860_gp_intr(struct rt2860_softc *sc)
+{
+	struct ieee80211com *ic = sc->sc_ifp->if_l2com;
+	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
+
+	DPRINTFN(2, ("GP timeout state=%d\n", vap->iv_state));
+
+	if (vap->iv_state == IEEE80211_S_RUN)
+		rt2860_updatestats(sc);
+}
+
+void
+rt2860_intr(void *arg)
+{
+	struct rt2860_softc *sc = arg;
+	uint32_t r;
+
+	RAL_LOCK(sc);
+
+	r = RAL_READ(sc, RT2860_INT_STATUS);
+	if (__predict_false(r == 0xffffffff)) {
+		RAL_UNLOCK(sc);
+		return;	/* device likely went away */
+	}
+	if (r == 0) {
+		RAL_UNLOCK(sc);
+		return;	/* not for us */
+	}
+
+	/* acknowledge interrupts */
+	RAL_WRITE(sc, RT2860_INT_STATUS, r);
+
+	if (r & RT2860_TX_RX_COHERENT)
+		rt2860_intr_coherent(sc);
+
+	if (r & RT2860_MAC_INT_2)	/* TX status */
+		rt2860_drain_stats_fifo(sc);
+
+	if (r & RT2860_TX_DONE_INT5)
+		rt2860_tx_intr(sc, 5);
+
+	if (r & RT2860_RX_DONE_INT)
+		rt2860_rx_intr(sc);
+
+	if (r & RT2860_TX_DONE_INT4)
+		rt2860_tx_intr(sc, 4);
+
+	if (r & RT2860_TX_DONE_INT3)
+		rt2860_tx_intr(sc, 3);
+
+	if (r & RT2860_TX_DONE_INT2)
+		rt2860_tx_intr(sc, 2);
+
+	if (r & RT2860_TX_DONE_INT1)
+		rt2860_tx_intr(sc, 1);
+
+	if (r & RT2860_TX_DONE_INT0)
+		rt2860_tx_intr(sc, 0);
+
+	if (r & RT2860_MAC_INT_0)	/* TBTT */
+		rt2860_tbtt_intr(sc);
+
+	if (r & RT2860_MAC_INT_3)	/* Auto wakeup */
+		/* TBD wakeup */;
+
+	if (r & RT2860_MAC_INT_4)	/* GP timer */
+		rt2860_gp_intr(sc);
+
+	RAL_UNLOCK(sc);
+}
+
+static int
+rt2860_tx(struct rt2860_softc *sc, struct mbuf *m, struct ieee80211_node *ni)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	struct ieee80211vap *vap = ni->ni_vap;
+	struct rt2860_tx_ring *ring;
+	struct rt2860_tx_data *data;
+	struct rt2860_txd *txd;
+	struct rt2860_txwi *txwi;
+	struct ieee80211_frame *wh;
+	const struct ieee80211_txparam *tp;
+	struct ieee80211_key *k;
+	struct mbuf *m1;
+	bus_dma_segment_t segs[RT2860_MAX_SCATTER];
+	bus_dma_segment_t *seg;
+	u_int hdrlen;
+	uint16_t qos, dur;
+	uint8_t type, qsel, mcs, pid, tid, qid;
+	int i, nsegs, ntxds, pad, rate, ridx, error;
+
+	/* the data pool contains at least one element, pick the first */
+	data = SLIST_FIRST(&sc->data_pool);
+
+	wh = mtod(m, struct ieee80211_frame *);
+
+	if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
+		k = ieee80211_crypto_encap(ni, m);
+		if (k == NULL) {
+			m_freem(m);
+			return ENOBUFS;
+		}
+
+		/* packet header may have moved, reset our local pointer */
+		wh = mtod(m, struct ieee80211_frame *);
+	}
+
+	hdrlen = ieee80211_anyhdrsize(wh);
+	type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
+
+	tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
+	if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
+		rate = tp->mcastrate;
+	} else if (m->m_flags & M_EAPOL) {
+		rate = tp->mgmtrate;
+	} else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
+		rate = tp->ucastrate;
+	} else {
+		(void) ieee80211_ratectl_rate(ni, NULL, 0);
+		rate = ni->ni_txrate;
+	}
+	rate &= IEEE80211_RATE_VAL;
+
+	qid = M_WME_GETAC(m);
+	if (IEEE80211_QOS_HAS_SEQ(wh)) {
+		qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
+		tid = qos & IEEE80211_QOS_TID;
+	} else {
+		qos = 0;
+		tid = 0;
+	}
+	ring = &sc->txq[qid];
+	ridx = ic->ic_rt->rateCodeToIndex[rate];
+
+	/* get MCS code from rate index */
+	mcs = rt2860_rates[ridx].mcs;
+
+	/* setup TX Wireless Information */
+	txwi = data->txwi;
+	txwi->flags = 0;
+	/* let HW generate seq numbers for non-QoS frames */
+	txwi->xflags = qos ? 0 : RT2860_TX_NSEQ;
+	if (type == IEEE80211_FC0_TYPE_DATA)
+		txwi->wcid = IEEE80211_AID(ni->ni_associd);
+	else
+		txwi->wcid = 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);
+
+	/*
+	 * We store the MCS code into the driver-private PacketID field.
+	 * The PacketID is latched into TX_STAT_FIFO when Tx completes so
+	 * that we know at which initial rate the frame was transmitted.
+	 * We add 1 to the MCS code because setting the PacketID field to
+	 * 0 means that we don't want feedback in TX_STAT_FIFO.
+	 */
+	pid = (mcs + 1) & 0xf;
+	txwi->len |= htole16(pid << RT2860_TX_PID_SHIFT);
+
+	/* check if RTS/CTS or CTS-to-self protection is required */
+	if (!IEEE80211_IS_MULTICAST(wh->i_addr1) &&
+	    (m->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold ||
+	     ((ic->ic_flags & IEEE80211_F_USEPROT) &&
+	      rt2860_rates[ridx].phy == IEEE80211_T_OFDM)))
+		txwi->txop = RT2860_TX_TXOP_HT;
+	else
+		txwi->txop = RT2860_TX_TXOP_BACKOFF;
+
+	if (!IEEE80211_IS_MULTICAST(wh->i_addr1) &&
+	    (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
+	     IEEE80211_QOS_ACKPOLICY_NOACK)) {
+		txwi->xflags |= RT2860_TX_ACK;
+
+		if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+			dur = rt2860_rates[ridx].sp_ack_dur;
+		else
+			dur = rt2860_rates[ridx].lp_ack_dur;
+		*(uint16_t *)wh->i_dur = htole16(dur);
+	}
+	/* ask MAC to insert timestamp into probe responses */
+	if ((wh->i_fc[0] &
+	     (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
+	     (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
+	    /* NOTE: beacons do not pass through tx_data() */
+		txwi->flags |= RT2860_TX_TS;
+
+	if (ieee80211_radiotap_active_vap(vap)) {
+		struct rt2860_tx_radiotap_header *tap = &sc->sc_txtap;
+
+		tap->wt_flags = 0;
+		tap->wt_rate = rate;
+		if (mcs & RT2860_PHY_SHPRE)
+			tap->wt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+		ieee80211_radiotap_tx(vap, m);
+	}
+
+	pad = (hdrlen + 3) & ~3;
+
+	/* copy and trim 802.11 header */
+	memcpy(txwi + 1, wh, hdrlen);
+	m_adj(m, hdrlen);
+
+	error = bus_dmamap_load_mbuf_sg(sc->txwi_dmat, data->map, m, segs,
+	    &nsegs, 0);
+	if (__predict_false(error != 0 && error != EFBIG)) {
+		device_printf(sc->sc_dev, "can't map mbuf (error %d)\n",
+		    error);
+		m_freem(m);
+		return error;
+	}
+	if (__predict_true(error == 0)) {
+		/* determine how many TXDs are required */
+		ntxds = 1 + (nsegs / 2);
+
+		if (ring->queued + ntxds >= RT2860_TX_RING_COUNT) {
+			/* not enough free TXDs, force mbuf defrag */
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			error = EFBIG;
+		}
+	}
+	if (__predict_false(error != 0)) {
+		m1 = m_defrag(m, M_DONTWAIT);
+		if (m1 == NULL) {
+			device_printf(sc->sc_dev,
+			    "could not defragment mbuf\n");
+			m_freem(m);
+			return ENOBUFS;
+		}
+		m = m1;
+
+		error = bus_dmamap_load_mbuf_sg(sc->txwi_dmat, data->map, m,
+		    segs, &nsegs, 0);
+		if (__predict_false(error != 0)) {
+			device_printf(sc->sc_dev, "can't map mbuf (error %d)\n",
+			    error);
+			m_freem(m);
+			return error;
+		}
+
+		/* determine how many TXDs are now required */
+		ntxds = 1 + (nsegs / 2);
+
+		if (ring->queued + ntxds >= RT2860_TX_RING_COUNT) {
+			/* this is a hopeless case, drop the mbuf! */
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			m_freem(m);
+			return ENOBUFS;
+		}
+	}
+
+	qsel = (qid < WME_NUM_AC) ? RT2860_TX_QSEL_EDCA : RT2860_TX_QSEL_MGMT;
+
+	/* first segment is TXWI + 802.11 header */
+	txd = &ring->txd[ring->cur];
+	txd->sdp0 = htole32(data->paddr);
+	txd->sdl0 = htole16(sizeof (struct rt2860_txwi) + pad);
+	txd->flags = qsel;
+
+	/* setup payload segments */
+	seg = &segs[0];
+	for (i = nsegs; i >= 2; i -= 2) {
+		txd->sdp1 = htole32(seg->ds_addr);
+		txd->sdl1 = htole16(seg->ds_len);
+		seg++;
+		ring->cur = (ring->cur + 1) % RT2860_TX_RING_COUNT;
+		/* grab a new Tx descriptor */
+		txd = &ring->txd[ring->cur];
+		txd->sdp0 = htole32(seg->ds_addr);
+		txd->sdl0 = htole16(seg->ds_len);
+		txd->flags = qsel;
+		seg++;
+	}
+	/* finalize last segment */
+	if (i > 0) {
+		txd->sdp1 = htole32(seg->ds_addr);
+		txd->sdl1 = htole16(seg->ds_len | RT2860_TX_LS1);
+	} else {
+		txd->sdl0 |= htole16(RT2860_TX_LS0);
+		txd->sdl1 = 0;
+	}
+
+	/* remove from the free pool and link it into the SW Tx slot */
+	SLIST_REMOVE_HEAD(&sc->data_pool, next);
+	data->m = m;
+	data->ni = ni;
+	ring->data[ring->cur] = data;
+
+	bus_dmamap_sync(sc->txwi_dmat, sc->txwi_map, BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(sc->txwi_dmat, data->map, BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
+
+	DPRINTFN(4, ("sending frame qid=%d wcid=%d nsegs=%d ridx=%d\n",
+	    qid, txwi->wcid, nsegs, ridx));
+
+	ring->cur = (ring->cur + 1) % RT2860_TX_RING_COUNT;
+	ring->queued += ntxds;
+	if (ring->queued >= RT2860_TX_RING_COUNT)
+		sc->qfullmsk |= 1 << qid;
+
+	/* kick Tx */
+	RAL_WRITE(sc, RT2860_TX_CTX_IDX(qid), ring->cur);
+
+	return 0;
+}
+
+static int
+rt2860_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
+    const struct ieee80211_bpf_params *params)
+{
+	struct ieee80211com *ic = ni->ni_ic;
+	struct ifnet *ifp = ic->ic_ifp;
+	struct rt2860_softc *sc = ifp->if_softc;
+	int error;
+
+	RAL_LOCK(sc);
+
+	/* prevent management frames from being sent if we're not ready */
+	if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
+		RAL_UNLOCK(sc);
+		m_freem(m);
+		ieee80211_free_node(ni);
+		return ENETDOWN;
+	}
+	if (params == NULL) {
+		/*
+		 * Legacy path; interpret frame contents to decide
+		 * precisely how to send the frame.
+		 */
+		error = rt2860_tx(sc, m, ni);
+	} else {
+		/*
+		 * Caller supplied explicit parameters to use in
+		 * sending the frame.
+		 */
+		error = rt2860_tx_raw(sc, m, ni, params);
+	}
+	if (error != 0) {
+		/* NB: m is reclaimed on tx failure */
+		ieee80211_free_node(ni);
+		ifp->if_oerrors++;
+	}
+	sc->sc_tx_timer = 5;
+	RAL_UNLOCK(sc);
+	return error;
+}
+
+static int
+rt2860_tx_raw(struct rt2860_softc *sc, struct mbuf *m,
+    struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	struct ieee80211vap *vap = ni->ni_vap;
+	struct rt2860_tx_ring *ring;
+	struct rt2860_tx_data *data;
+	struct rt2860_txd *txd;
+	struct rt2860_txwi *txwi;
+	struct ieee80211_frame *wh;
+	struct mbuf *m1;
+	bus_dma_segment_t segs[RT2860_MAX_SCATTER];
+	bus_dma_segment_t *seg;
+	u_int hdrlen;
+	uint16_t dur;
+	uint8_t type, qsel, mcs, pid, tid, qid;
+	int i, nsegs, ntxds, pad, rate, ridx, error;
+
+	/* the data pool contains at least one element, pick the first */
+	data = SLIST_FIRST(&sc->data_pool);
+
+	wh = mtod(m, struct ieee80211_frame *);
+	hdrlen = ieee80211_hdrsize(wh);
+	type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
+
+	/* Choose a TX rate index. */
+	rate = params->ibp_rate0;
+	ridx = ic->ic_rt->rateCodeToIndex[rate];
+	if (ridx == (uint8_t)-1) {
+		/* XXX fall back to mcast/mgmt rate? */
+		m_freem(m);
+		return EINVAL;
+	}
+
+	qid = params->ibp_pri & 3;
+	tid = 0;
+	ring = &sc->txq[qid];
+
+	/* get MCS code from rate index */
+	mcs = rt2860_rates[ridx].mcs;
+
+	/* setup TX Wireless Information */
+	txwi = data->txwi;
+	txwi->flags = 0;
+	/* let HW generate seq numbers for non-QoS frames */
+	txwi->xflags = params->ibp_pri & 3 ? 0 : RT2860_TX_NSEQ;
+	txwi->wcid = 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);
+
+	/*
+	 * We store the MCS code into the driver-private PacketID field.
+	 * The PacketID is latched into TX_STAT_FIFO when Tx completes so
+	 * that we know at which initial rate the frame was transmitted.
+	 * We add 1 to the MCS code because setting the PacketID field to
+	 * 0 means that we don't want feedback in TX_STAT_FIFO.
+	 */
+	pid = (mcs + 1) & 0xf;
+	txwi->len |= htole16(pid << RT2860_TX_PID_SHIFT);
+
+	/* check if RTS/CTS or CTS-to-self protection is required */
+	if (params->ibp_flags & IEEE80211_BPF_RTS ||
+	    params->ibp_flags & IEEE80211_BPF_CTS)
+		txwi->txop = RT2860_TX_TXOP_HT;
+	else
+		txwi->txop = RT2860_TX_TXOP_BACKOFF;
+	if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) {
+		txwi->xflags |= RT2860_TX_ACK;
+
+		if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+			dur = rt2860_rates[ridx].sp_ack_dur;
+		else
+			dur = rt2860_rates[ridx].lp_ack_dur;
+		*(uint16_t *)wh->i_dur = htole16(dur);
+	}
+	/* ask MAC to insert timestamp into probe responses */
+	if ((wh->i_fc[0] &
+	     (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
+	     (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
+	    /* NOTE: beacons do not pass through tx_data() */
+		txwi->flags |= RT2860_TX_TS;
+
+	if (ieee80211_radiotap_active_vap(vap)) {
+		struct rt2860_tx_radiotap_header *tap = &sc->sc_txtap;
+
+		tap->wt_flags = 0;
+		tap->wt_rate = rate;
+		if (mcs & RT2860_PHY_SHPRE)
+			tap->wt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+		ieee80211_radiotap_tx(vap, m);
+	}
+
+	pad = (hdrlen + 3) & ~3;
+
+	/* copy and trim 802.11 header */
+	memcpy(txwi + 1, wh, hdrlen);
+	m_adj(m, hdrlen);
+
+	error = bus_dmamap_load_mbuf_sg(sc->txwi_dmat, data->map, m, segs,
+	    &nsegs, 0);
+	if (__predict_false(error != 0 && error != EFBIG)) {
+		device_printf(sc->sc_dev, "can't map mbuf (error %d)\n",
+		    error);
+		m_freem(m);
+		return error;
+	}
+	if (__predict_true(error == 0)) {
+		/* determine how many TXDs are required */
+		ntxds = 1 + (nsegs / 2);
+
+		if (ring->queued + ntxds >= RT2860_TX_RING_COUNT) {
+			/* not enough free TXDs, force mbuf defrag */
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			error = EFBIG;
+		}
+	}
+	if (__predict_false(error != 0)) {
+		m1 = m_defrag(m, M_DONTWAIT);
+		if (m1 == NULL) {
+			device_printf(sc->sc_dev,
+			    "could not defragment mbuf\n");
+			m_freem(m);
+			return ENOBUFS;
+		}
+		m = m1;
+
+		error = bus_dmamap_load_mbuf_sg(sc->txwi_dmat, data->map, m,
+		    segs, &nsegs, 0);
+		if (__predict_false(error != 0)) {
+			device_printf(sc->sc_dev, "can't map mbuf (error %d)\n",
+			    error);
+			m_freem(m);
+			return error;
+		}
+
+		/* determine how many TXDs are now required */
+		ntxds = 1 + (nsegs / 2);
+
+		if (ring->queued + ntxds >= RT2860_TX_RING_COUNT) {
+			/* this is a hopeless case, drop the mbuf! */
+			bus_dmamap_unload(sc->txwi_dmat, data->map);
+			m_freem(m);
+			return ENOBUFS;
+		}
+	}
+
+	qsel = (qid < WME_NUM_AC) ? RT2860_TX_QSEL_EDCA : RT2860_TX_QSEL_MGMT;
+
+	/* first segment is TXWI + 802.11 header */
+	txd = &ring->txd[ring->cur];
+	txd->sdp0 = htole32(data->paddr);
+	txd->sdl0 = htole16(sizeof (struct rt2860_txwi) + pad);
+	txd->flags = qsel;
+
+	/* setup payload segments */
+	seg = &segs[0];
+	for (i = nsegs; i >= 2; i -= 2) {
+		txd->sdp1 = htole32(seg->ds_addr);
+		txd->sdl1 = htole16(seg->ds_len);
+		seg++;
+		ring->cur = (ring->cur + 1) % RT2860_TX_RING_COUNT;
+		/* grab a new Tx descriptor */
+		txd = &ring->txd[ring->cur];
+		txd->sdp0 = htole32(seg->ds_addr);
+		txd->sdl0 = htole16(seg->ds_len);
+		txd->flags = qsel;
+		seg++;
+	}
+	/* finalize last segment */
+	if (i > 0) {
+		txd->sdp1 = htole32(seg->ds_addr);
+		txd->sdl1 = htole16(seg->ds_len | RT2860_TX_LS1);
+	} else {
+		txd->sdl0 |= htole16(RT2860_TX_LS0);
+		txd->sdl1 = 0;
+	}
+
+	/* remove from the free pool and link it into the SW Tx slot */
+	SLIST_REMOVE_HEAD(&sc->data_pool, next);
+	data->m = m;
+	data->ni = ni;
+	ring->data[ring->cur] = data;
+
+	bus_dmamap_sync(sc->txwi_dmat, sc->txwi_map, BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(sc->txwi_dmat, data->map, BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
+
+	DPRINTFN(4, ("sending frame qid=%d wcid=%d nsegs=%d ridx=%d\n",
+	    qid, txwi->wcid, nsegs, ridx));
+
+	ring->cur = (ring->cur + 1) % RT2860_TX_RING_COUNT;
+	ring->queued += ntxds;
+	if (ring->queued >= RT2860_TX_RING_COUNT)
+		sc->qfullmsk |= 1 << qid;
+
+	/* kick Tx */
+	RAL_WRITE(sc, RT2860_TX_CTX_IDX(qid), ring->cur);
+
+	return 0;
+}
+
+static void
+rt2860_start(struct ifnet *ifp)
+{
+	struct rt2860_softc *sc = ifp->if_softc;
+
+	RAL_LOCK(sc);
+	rt2860_start_locked(ifp);
+	RAL_UNLOCK(sc);
+}
+
+static void
+rt2860_start_locked(struct ifnet *ifp)
+{
+	struct rt2860_softc *sc = ifp->if_softc;
+	struct ieee80211_node *ni;
+	struct mbuf *m;
+
+	RAL_LOCK_ASSERT(sc);
+
+	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
+	    (ifp->if_drv_flags & IFF_DRV_OACTIVE))
+		return;
+
+	for (;;) {
+		if (SLIST_EMPTY(&sc->data_pool) || sc->qfullmsk != 0) {
+			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+			break;
+		}
+		IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
+		if (m == NULL)
+			break;
+		ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
+		if (rt2860_tx(sc, m, ni) != 0) {
+			ieee80211_free_node(ni);
+			ifp->if_oerrors++;
+			continue;
+		}
+		sc->sc_tx_timer = 5;
+	}
+}
+
+static void
+rt2860_watchdog(void *arg)
+{
+	struct rt2860_softc *sc = arg;
+	struct ifnet *ifp = sc->sc_ifp;
+
+	RAL_LOCK_ASSERT(sc);
+
+	KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running"));
+
+	if (sc->sc_invalid)		/* card ejected */
+		return;
+
+	if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
+		if_printf(ifp, "device timeout\n");
+		rt2860_stop_locked(sc);
+		rt2860_init_locked(sc);
+		ifp->if_oerrors++;
+		return;
+	}
+	callout_reset(&sc->watchdog_ch, hz, rt2860_watchdog, sc);
+}
+
+static int
+rt2860_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+	struct rt2860_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = ifp->if_l2com;
+	struct ifreq *ifr = (struct ifreq *)data;
+	int error = 0, startall = 0;
+
+	switch (cmd) {
+	case SIOCSIFFLAGS:
+		RAL_LOCK(sc);
+		if (ifp->if_flags & IFF_UP) {
+			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
+				rt2860_init_locked(sc);
+				startall = 1;
+			} else
+				rt2860_update_promisc(ifp);
+		} else {
+			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+				rt2860_stop_locked(sc);
+		}
+		RAL_UNLOCK(sc);
+		if (startall)
+			ieee80211_start_all(ic);
+		break;
+	case SIOCGIFMEDIA:
+		error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
+		break;
+	case SIOCSIFADDR:
+		error = ether_ioctl(ifp, cmd, data);
+		break;
+	default:
+		error = EINVAL;
+		break;
+	}
+	return error;
+}
+
+/*
+ * Reading and writing from/to the BBP is different from RT2560 and RT2661.
+ * We access the BBP through the 8051 microcontroller unit which means that
+ * the microcode must be loaded first.
+ */
+void
+rt2860_mcu_bbp_write(struct rt2860_softc *sc, uint8_t reg, uint8_t val)
+{
+	int ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RT2860_H2M_BBPAGENT) & RT2860_BBP_CSR_KICK))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev,
+		    "could not write to BBP through MCU\n");
+		return;
+	}
+
+	RAL_WRITE(sc, RT2860_H2M_BBPAGENT, RT2860_BBP_RW_PARALLEL |
+	    RT2860_BBP_CSR_KICK | reg << 8 | val);
+	RAL_BARRIER_WRITE(sc);
+
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_BBP, 0, 0);
+	DELAY(1000);
+}
+
+uint8_t
+rt2860_mcu_bbp_read(struct rt2860_softc *sc, uint8_t reg)
+{
+	uint32_t val;
+	int ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RT2860_H2M_BBPAGENT) & RT2860_BBP_CSR_KICK))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev,
+		    "could not read from BBP through MCU\n");
+		return 0;
+	}
+
+	RAL_WRITE(sc, RT2860_H2M_BBPAGENT, RT2860_BBP_RW_PARALLEL |
+	    RT2860_BBP_CSR_KICK | RT2860_BBP_CSR_READ | reg << 8);
+	RAL_BARRIER_WRITE(sc);
+
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_BBP, 0, 0);
+	DELAY(1000);
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		val = RAL_READ(sc, RT2860_H2M_BBPAGENT);
+		if (!(val & RT2860_BBP_CSR_KICK))
+			return val & 0xff;
+		DELAY(1);
+	}
+	device_printf(sc->sc_dev, "could not read from BBP through MCU\n");
+
+	return 0;
+}
+
+/*
+ * Write to one of the 4 programmable 24-bit RF registers.
+ */
+static void
+rt2860_rf_write(struct rt2860_softc *sc, uint8_t reg, uint32_t val)
+{
+	uint32_t tmp;
+	int ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RT2860_RF_CSR_CFG0) & RT2860_RF_REG_CTRL))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev, "could not write to RF\n");
+		return;
+	}
+
+	/* RF registers are 24-bit on the RT2860 */
+	tmp = RT2860_RF_REG_CTRL | 24 << RT2860_RF_REG_WIDTH_SHIFT |
+	    (val & 0x3fffff) << 2 | (reg & 3);
+	RAL_WRITE(sc, RT2860_RF_CSR_CFG0, tmp);
+}
+
+static uint8_t
+rt3090_rf_read(struct rt2860_softc *sc, uint8_t reg)
+{
+	uint32_t tmp;
+	int ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RT3070_RF_CSR_CFG) & RT3070_RF_KICK))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev, "could not read RF register\n");
+		return 0xff;
+	}
+	tmp = RT3070_RF_KICK | reg << 8;
+	RAL_WRITE(sc, RT3070_RF_CSR_CFG, tmp);
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		tmp = RAL_READ(sc, RT3070_RF_CSR_CFG);
+		if (!(tmp & RT3070_RF_KICK))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev, "could not read RF register\n");
+		return 0xff;
+	}
+	return tmp & 0xff;
+}
+
+void
+rt3090_rf_write(struct rt2860_softc *sc, uint8_t reg, uint8_t val)
+{
+	uint32_t tmp;
+	int ntries;
+
+	for (ntries = 0; ntries < 10; ntries++) {
+		if (!(RAL_READ(sc, RT3070_RF_CSR_CFG) & RT3070_RF_KICK))
+			break;
+		DELAY(10);
+	}
+	if (ntries == 10) {
+		device_printf(sc->sc_dev, "could not write to RF\n");
+		return;
+	}
+
+	tmp = RT3070_RF_WRITE | RT3070_RF_KICK | reg << 8 | val;
+	RAL_WRITE(sc, RT3070_RF_CSR_CFG, tmp);
+}
+
+/*
+ * Send a command to the 8051 microcontroller unit.
+ */
+int
+rt2860_mcu_cmd(struct rt2860_softc *sc, uint8_t cmd, uint16_t arg, int wait)
+{
+	int slot, ntries;
+	uint32_t tmp;
+	uint8_t cid;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RT2860_H2M_MAILBOX) & RT2860_H2M_BUSY))
+			break;
+		DELAY(2);
+	}
+	if (ntries == 100)
+		return EIO;
+
+	cid = wait ? cmd : RT2860_TOKEN_NO_INTR;
+	RAL_WRITE(sc, RT2860_H2M_MAILBOX, RT2860_H2M_BUSY | cid << 16 | arg);
+	RAL_BARRIER_WRITE(sc);
+	RAL_WRITE(sc, RT2860_HOST_CMD, cmd);
+
+	if (!wait)
+		return 0;
+	/* wait for the command to complete */
+	for (ntries = 0; ntries < 200; ntries++) {
+		tmp = RAL_READ(sc, RT2860_H2M_MAILBOX_CID);
+		/* find the command slot */
+		for (slot = 0; slot < 4; slot++, tmp >>= 8)
+			if ((tmp & 0xff) == cid)
+				break;
+		if (slot < 4)
+			break;
+		DELAY(100);
+	}
+	if (ntries == 200) {
+		/* clear command and status */
+		RAL_WRITE(sc, RT2860_H2M_MAILBOX_STATUS, 0xffffffff);
+		RAL_WRITE(sc, RT2860_H2M_MAILBOX_CID, 0xffffffff);
+		return ETIMEDOUT;
+	}
+	/* get command status (1 means success) */
+	tmp = RAL_READ(sc, RT2860_H2M_MAILBOX_STATUS);
+	tmp = (tmp >> (slot * 8)) & 0xff;
+	DPRINTF(("MCU command=0x%02x slot=%d status=0x%02x\n",
+	    cmd, slot, tmp));
+	/* clear command and status */
+	RAL_WRITE(sc, RT2860_H2M_MAILBOX_STATUS, 0xffffffff);
+	RAL_WRITE(sc, RT2860_H2M_MAILBOX_CID, 0xffffffff);
+	return (tmp == 1) ? 0 : EIO;
+}
+
+static void
+rt2860_enable_mrr(struct rt2860_softc *sc)
+{
+#define CCK(mcs)	(mcs)
+#define OFDM(mcs)	(1 << 3 | (mcs))
+	RAL_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 */
+
+	RAL_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
+}
+
+static void
+rt2860_set_txpreamble(struct rt2860_softc *sc)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	uint32_t tmp;
+
+	tmp = RAL_READ(sc, RT2860_AUTO_RSP_CFG);
+	tmp &= ~RT2860_CCK_SHORT_EN;
+	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+		tmp |= RT2860_CCK_SHORT_EN;
+	RAL_WRITE(sc, RT2860_AUTO_RSP_CFG, tmp);
+}
+
+void
+rt2860_set_basicrates(struct rt2860_softc *sc,
+    const struct ieee80211_rateset *rs)
+{
+#define RV(r)	((r) & IEEE80211_RATE_VAL)
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	uint32_t mask = 0;
+	uint8_t rate;
+	int i;
+
+	for (i = 0; i < rs->rs_nrates; i++) {
+		rate = rs->rs_rates[i];
+
+		if (!(rate & IEEE80211_RATE_BASIC))
+			continue;
+
+		mask |= 1 << ic->ic_rt->rateCodeToIndex[RV(rate)];
+	}
+
+	RAL_WRITE(sc, RT2860_LEGACY_BASIC_RATE, mask);
+#undef RV
+}
+
+static void
+rt2860_scan_start(struct ieee80211com *ic)
+{
+	struct ifnet *ifp = ic->ic_ifp;
+	struct rt2860_softc *sc = ifp->if_softc;
+	uint32_t tmp;
+
+	tmp = RAL_READ(sc, RT2860_BCN_TIME_CFG);
+	RAL_WRITE(sc, RT2860_BCN_TIME_CFG,
+	    tmp & ~(RT2860_BCN_TX_EN | RT2860_TSF_TIMER_EN |
+	    RT2860_TBTT_TIMER_EN));
+	rt2860_set_gp_timer(sc, 0);
+}
+
+static void
+rt2860_scan_end(struct ieee80211com *ic)
+{
+	struct ifnet *ifp = ic->ic_ifp;
+	struct rt2860_softc *sc = ifp->if_softc;
+	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
+
+	if (vap->iv_state == IEEE80211_S_RUN) {
+		rt2860_enable_tsf_sync(sc);
+		rt2860_set_gp_timer(sc, 500);
+	}
+}
+
+static void
+rt2860_set_channel(struct ieee80211com *ic)
+{
+	struct ifnet *ifp = ic->ic_ifp;
+	struct rt2860_softc *sc = ifp->if_softc;
+
+	RAL_LOCK(sc);
+	rt2860_switch_chan(sc, ic->ic_curchan);
+	RAL_UNLOCK(sc);
+}
+
+static void
+rt2860_select_chan_group(struct rt2860_softc *sc, int group)
+{
+	uint32_t tmp;
+	uint8_t agc;
+
+	rt2860_mcu_bbp_write(sc, 62, 0x37 - sc->lna[group]);
+	rt2860_mcu_bbp_write(sc, 63, 0x37 - sc->lna[group]);
+	rt2860_mcu_bbp_write(sc, 64, 0x37 - sc->lna[group]);
+	rt2860_mcu_bbp_write(sc, 86, 0x00);
+
+	if (group == 0) {
+		if (sc->ext_2ghz_lna) {
+			rt2860_mcu_bbp_write(sc, 82, 0x62);
+			rt2860_mcu_bbp_write(sc, 75, 0x46);
+		} else {
+			rt2860_mcu_bbp_write(sc, 82, 0x84);
+			rt2860_mcu_bbp_write(sc, 75, 0x50);
+		}
+	} else {
+		if (sc->ext_5ghz_lna) {
+			rt2860_mcu_bbp_write(sc, 82, 0xf2);
+			rt2860_mcu_bbp_write(sc, 75, 0x46);
+		} else {
+			rt2860_mcu_bbp_write(sc, 82, 0xf2);
+			rt2860_mcu_bbp_write(sc, 75, 0x50);
+		}
+	}
+
+	tmp = RAL_READ(sc, RT2860_TX_BAND_CFG);
+	tmp &= ~(RT2860_5G_BAND_SEL_N | RT2860_5G_BAND_SEL_P);
+	tmp |= (group == 0) ? RT2860_5G_BAND_SEL_N : RT2860_5G_BAND_SEL_P;
+	RAL_WRITE(sc, RT2860_TX_BAND_CFG, tmp);
+
+	/* enable appropriate Power Amplifiers and Low Noise Amplifiers */
+	tmp = RT2860_RFTR_EN | RT2860_TRSW_EN | RT2860_LNA_PE0_EN;
+	if (sc->nrxchains > 1)
+		tmp |= RT2860_LNA_PE1_EN;
+	if (sc->mac_ver == 0x3593 && sc->nrxchains > 2)
+		tmp |= RT3593_LNA_PE2_EN;
+	if (group == 0) {	/* 2GHz */
+		tmp |= RT2860_PA_PE_G0_EN;
+		if (sc->ntxchains > 1)
+			tmp |= RT2860_PA_PE_G1_EN;
+		if (sc->mac_ver == 0x3593 && sc->ntxchains > 2)
+			tmp |= RT3593_PA_PE_G2_EN;
+	} else {		/* 5GHz */
+		tmp |= RT2860_PA_PE_A0_EN;
+		if (sc->ntxchains > 1)
+			tmp |= RT2860_PA_PE_A1_EN;
+		if (sc->mac_ver == 0x3593 && sc->ntxchains > 2)
+			tmp |= RT3593_PA_PE_A2_EN;
+	}
+	RAL_WRITE(sc, RT2860_TX_PIN_CFG, tmp);
+
+	if (sc->mac_ver == 0x3593) {
+		tmp = RAL_READ(sc, RT2860_GPIO_CTRL);
+		if (sc->sc_flags & RT2860_PCIE) {
+			tmp &= ~0x01010000;
+			if (group == 0)
+				tmp |= 0x00010000;
+		} else {
+			tmp &= ~0x00008080;
+			if (group == 0)
+				tmp |= 0x00000080;
+		}
+		tmp = (tmp & ~0x00001000) | 0x00000010;
+		RAL_WRITE(sc, RT2860_GPIO_CTRL, tmp);
+	}
+
+	/* set initial AGC value */
+	if (group == 0) {	/* 2GHz band */
+		if (sc->mac_ver >= 0x3071)
+			agc = 0x1c + sc->lna[0] * 2;
+		else
+			agc = 0x2e + sc->lna[0];
+	} else {		/* 5GHz band */
+		agc = 0x32 + (sc->lna[group] * 5) / 3;
+	}
+	rt2860_mcu_bbp_write(sc, 66, agc);
+
+	DELAY(1000);
+}
+
+static void
+rt2860_set_chan(struct rt2860_softc *sc, u_int chan)
+{
+	const struct rfprog *rfprog = rt2860_rf2850;
+	uint32_t r2, r3, r4;
+	int8_t txpow1, txpow2;
+	u_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 | 1;
+		else
+			txpow1 = (7 + txpow1) << 1;
+		if (txpow2 >= 0)
+			txpow2 = txpow2 << 1 | 1;
+		else
+			txpow2 = (7 + txpow2) << 1;
+	}
+	r3 = rfprog[i].r3 | txpow1 << 7;
+	r4 = rfprog[i].r4 | sc->freq << 13 | txpow2 << 4;
+
+	rt2860_rf_write(sc, RT2860_RF1, rfprog[i].r1);
+	rt2860_rf_write(sc, RT2860_RF2, r2);
+	rt2860_rf_write(sc, RT2860_RF3, r3);
+	rt2860_rf_write(sc, RT2860_RF4, r4);
+
+	DELAY(200);
+
+	rt2860_rf_write(sc, RT2860_RF1, rfprog[i].r1);
+	rt2860_rf_write(sc, RT2860_RF2, r2);
+	rt2860_rf_write(sc, RT2860_RF3, r3 | 1);
+	rt2860_rf_write(sc, RT2860_RF4, r4);
+
+	DELAY(200);
+
+	rt2860_rf_write(sc, RT2860_RF1, rfprog[i].r1);
+	rt2860_rf_write(sc, RT2860_RF2, r2);
+	rt2860_rf_write(sc, RT2860_RF3, r3);
+	rt2860_rf_write(sc, RT2860_RF4, r4);
+}
+
+static void
+rt3090_set_chan(struct rt2860_softc *sc, u_int chan)
+{
+	int8_t txpow1, txpow2;
+	uint8_t rf;
+	int i;
+
+	/* RT3090 is 2GHz only */
+	KASSERT(chan >= 1 && chan <= 14, ("chan %d not support", chan));
+
+	/* find the settings for this channel (we know it exists) */
+	for (i = 0; rt2860_rf2850[i].chan != chan; i++);
+
+	/* use Tx power values from EEPROM */
+	txpow1 = sc->txpow1[i];
+	txpow2 = sc->txpow2[i];
+
+	rt3090_rf_write(sc, 2, rt3090_freqs[i].n);
+	rf = rt3090_rf_read(sc, 3);
+	rf = (rf & ~0x0f) | rt3090_freqs[i].k;
+	rt3090_rf_write(sc, 3, rf);
+	rf = rt3090_rf_read(sc, 6);
+	rf = (rf & ~0x03) | rt3090_freqs[i].r;
+	rt3090_rf_write(sc, 6, rf);
+
+	/* set Tx0 power */
+	rf = rt3090_rf_read(sc, 12);
+	rf = (rf & ~0x1f) | txpow1;
+	rt3090_rf_write(sc, 12, rf);
+
+	/* set Tx1 power */
+	rf = rt3090_rf_read(sc, 13);
+	rf = (rf & ~0x1f) | txpow2;
+	rt3090_rf_write(sc, 13, rf);
+
+	rf = rt3090_rf_read(sc, 1);
+	rf &= ~0xfc;
+	if (sc->ntxchains == 1)
+		rf |= RT3070_TX1_PD | RT3070_TX2_PD;
+	else if (sc->ntxchains == 2)
+		rf |= RT3070_TX2_PD;
+	if (sc->nrxchains == 1)
+		rf |= RT3070_RX1_PD | RT3070_RX2_PD;
+	else if (sc->nrxchains == 2)
+		rf |= RT3070_RX2_PD;
+	rt3090_rf_write(sc, 1, rf);
+
+	/* set RF offset */
+	rf = rt3090_rf_read(sc, 23);
+	rf = (rf & ~0x7f) | sc->freq;
+	rt3090_rf_write(sc, 23, rf);
+
+	/* program RF filter */
+	rf = rt3090_rf_read(sc, 24);	/* Tx */
+	rf = (rf & ~0x3f) | sc->rf24_20mhz;
+	rt3090_rf_write(sc, 24, rf);
+	rf = rt3090_rf_read(sc, 31);	/* Rx */
+	rf = (rf & ~0x3f) | sc->rf24_20mhz;
+	rt3090_rf_write(sc, 31, rf);
+
+	/* enable RF tuning */
+	rf = rt3090_rf_read(sc, 7);
+	rt3090_rf_write(sc, 7, rf | RT3070_TUNE);
+}
+
+static int
+rt3090_rf_init(struct rt2860_softc *sc)
+{
+#define N(a)	(sizeof (a) / sizeof ((a)[0]))
+	uint32_t tmp;
+	uint8_t rf, bbp;
+	int i;
+
+	rf = rt3090_rf_read(sc, 30);
+	/* toggle RF R30 bit 7 */
+	rt3090_rf_write(sc, 30, rf | 0x80);
+	DELAY(1000);
+	rt3090_rf_write(sc, 30, rf & ~0x80);
+
+	tmp = RAL_READ(sc, RT3070_LDO_CFG0);
+	tmp &= ~0x1f000000;
+	if (sc->patch_dac && sc->mac_rev < 0x0211)
+		tmp |= 0x0d000000;	/* 1.35V */
+	else
+		tmp |= 0x01000000;	/* 1.2V */
+	RAL_WRITE(sc, RT3070_LDO_CFG0, tmp);
+
+	/* patch LNA_PE_G1 */
+	tmp = RAL_READ(sc, RT3070_GPIO_SWITCH);
+	RAL_WRITE(sc, RT3070_GPIO_SWITCH, tmp & ~0x20);
+
+	/* initialize RF registers to default value */
+	for (i = 0; i < N(rt3090_def_rf); i++) {
+		rt3090_rf_write(sc, rt3090_def_rf[i].reg,
+		    rt3090_def_rf[i].val);
+	}
+
+	/* select 20MHz bandwidth */
+	rt3090_rf_write(sc, 31, 0x14);
+
+	rf = rt3090_rf_read(sc, 6);
+	rt3090_rf_write(sc, 6, rf | 0x40);
+
+	if (sc->mac_ver != 0x3593) {
+		/* calibrate filter for 20MHz bandwidth */
+		sc->rf24_20mhz = 0x1f;	/* default value */
+		rt3090_filter_calib(sc, 0x07, 0x16, &sc->rf24_20mhz);
+
+		/* select 40MHz bandwidth */
+		bbp = rt2860_mcu_bbp_read(sc, 4);
+		rt2860_mcu_bbp_write(sc, 4, (bbp & ~0x08) | 0x10);
+		rf = rt3090_rf_read(sc, 31);
+		rt3090_rf_write(sc, 31, rf | 0x20);
+
+		/* calibrate filter for 40MHz bandwidth */
+		sc->rf24_40mhz = 0x2f;	/* default value */
+		rt3090_filter_calib(sc, 0x27, 0x19, &sc->rf24_40mhz);
+
+		/* go back to 20MHz bandwidth */
+		bbp = rt2860_mcu_bbp_read(sc, 4);
+		rt2860_mcu_bbp_write(sc, 4, bbp & ~0x18);
+	}
+	if (sc->mac_rev < 0x0211)
+		rt3090_rf_write(sc, 27, 0x03);
+
+	tmp = RAL_READ(sc, RT3070_OPT_14);
+	RAL_WRITE(sc, RT3070_OPT_14, tmp | 1);
+
+	if (sc->rf_rev == RT3070_RF_3020)
+		rt3090_set_rx_antenna(sc, 0);
+
+	bbp = rt2860_mcu_bbp_read(sc, 138);
+	if (sc->mac_ver == 0x3593) {
+		if (sc->ntxchains == 1)
+			bbp |= 0x60;	/* turn off DAC1 and DAC2 */
+		else if (sc->ntxchains == 2)
+			bbp |= 0x40;	/* turn off DAC2 */
+		if (sc->nrxchains == 1)
+			bbp &= ~0x06;	/* turn off ADC1 and ADC2 */
+		else if (sc->nrxchains == 2)
+			bbp &= ~0x04;	/* turn off ADC2 */
+	} else {
+		if (sc->ntxchains == 1)
+			bbp |= 0x20;	/* turn off DAC1 */
+		if (sc->nrxchains == 1)
+			bbp &= ~0x02;	/* turn off ADC1 */
+	}
+	rt2860_mcu_bbp_write(sc, 138, bbp);
+
+	rf = rt3090_rf_read(sc, 1);
+	rf &= ~(RT3070_RX0_PD | RT3070_TX0_PD);
+	rf |= RT3070_RF_BLOCK | RT3070_RX1_PD | RT3070_TX1_PD;
+	rt3090_rf_write(sc, 1, rf);
+
+	rf = rt3090_rf_read(sc, 15);
+	rt3090_rf_write(sc, 15, rf & ~RT3070_TX_LO2);
+
+	rf = rt3090_rf_read(sc, 17);
+	rf &= ~RT3070_TX_LO1;
+	if (sc->mac_rev >= 0x0211 && !sc->ext_2ghz_lna)
+		rf |= 0x20;	/* fix for long range Rx issue */
+	if (sc->txmixgain_2ghz >= 2)
+		rf = (rf & ~0x7) | sc->txmixgain_2ghz;
+	rt3090_rf_write(sc, 17, rf);
+
+	rf = rt3090_rf_read(sc, 20);
+	rt3090_rf_write(sc, 20, rf & ~RT3070_RX_LO1);
+
+	rf = rt3090_rf_read(sc, 21);
+	rt3090_rf_write(sc, 21, rf & ~RT3070_RX_LO2);
+
+	return 0;
+#undef N
+}
+
+void
+rt3090_rf_wakeup(struct rt2860_softc *sc)
+{
+	uint32_t tmp;
+	uint8_t rf;
+
+	if (sc->mac_ver == 0x3593) {
+		/* enable VCO */
+		rf = rt3090_rf_read(sc, 1);
+		rt3090_rf_write(sc, 1, rf | RT3593_VCO);
+
+		/* initiate VCO calibration */
+		rf = rt3090_rf_read(sc, 3);
+		rt3090_rf_write(sc, 3, rf | RT3593_VCOCAL);
+
+		/* enable VCO bias current control */
+		rf = rt3090_rf_read(sc, 6);
+		rt3090_rf_write(sc, 6, rf | RT3593_VCO_IC);
+
+		/* initiate res calibration */
+		rf = rt3090_rf_read(sc, 2);
+		rt3090_rf_write(sc, 2, rf | RT3593_RESCAL);
+
+		/* set reference current control to 0.33 mA */
+		rf = rt3090_rf_read(sc, 22);
+		rf &= ~RT3593_CP_IC_MASK;
+		rf |= 1 << RT3593_CP_IC_SHIFT;
+		rt3090_rf_write(sc, 22, rf);
+
+		/* enable RX CTB */
+		rf = rt3090_rf_read(sc, 46);
+		rt3090_rf_write(sc, 46, rf | RT3593_RX_CTB);
+
+		rf = rt3090_rf_read(sc, 20);
+		rf &= ~(RT3593_LDO_RF_VC_MASK | RT3593_LDO_PLL_VC_MASK);
+		rt3090_rf_write(sc, 20, rf);
+	} else {
+		/* enable RF block */
+		rf = rt3090_rf_read(sc, 1);
+		rt3090_rf_write(sc, 1, rf | RT3070_RF_BLOCK);
+
+		/* enable VCO bias current control */
+		rf = rt3090_rf_read(sc, 7);
+		rt3090_rf_write(sc, 7, rf | 0x30);
+
+		rf = rt3090_rf_read(sc, 9);
+		rt3090_rf_write(sc, 9, rf | 0x0e);
+
+		/* enable RX CTB */
+		rf = rt3090_rf_read(sc, 21);
+		rt3090_rf_write(sc, 21, rf | RT3070_RX_CTB);
+
+		/* fix Tx to Rx IQ glitch by raising RF voltage */
+		rf = rt3090_rf_read(sc, 27);
+		rf &= ~0x77;
+		if (sc->mac_rev < 0x0211)
+			rf |= 0x03;
+		rt3090_rf_write(sc, 27, rf);
+	}
+	if (sc->patch_dac && sc->mac_rev < 0x0211) {
+		tmp = RAL_READ(sc, RT3070_LDO_CFG0);
+		tmp = (tmp & ~0x1f000000) | 0x0d000000;
+		RAL_WRITE(sc, RT3070_LDO_CFG0, tmp);
+	}
+}
+
+int
+rt3090_filter_calib(struct rt2860_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 = rt3090_rf_read(sc, 24);
+	rf24 = (rf24 & 0xc0) | init;	/* initial filter value */
+	rt3090_rf_write(sc, 24, rf24);
+
+	/* enable baseband loopback mode */
+	rf22 = rt3090_rf_read(sc, 22);
+	rt3090_rf_write(sc, 22, rf22 | RT3070_BB_LOOPBACK);
+
+	/* set power and frequency of passband test tone */
+	rt2860_mcu_bbp_write(sc, 24, 0x00);
+	for (ntries = 0; ntries < 100; ntries++) {
+		/* transmit test tone */
+		rt2860_mcu_bbp_write(sc, 25, 0x90);
+		DELAY(1000);
+		/* read received power */
+		bbp55_pb = rt2860_mcu_bbp_read(sc, 55);
+		if (bbp55_pb != 0)
+			break;
+	}
+	if (ntries == 100)
+		return ETIMEDOUT;
+
+	/* set power and frequency of stopband test tone */
+	rt2860_mcu_bbp_write(sc, 24, 0x06);
+	for (ntries = 0; ntries < 100; ntries++) {
+		/* transmit test tone */
+		rt2860_mcu_bbp_write(sc, 25, 0x90);
+		DELAY(1000);
+		/* read received power */
+		bbp55_sb = rt2860_mcu_bbp_read(sc, 55);
+
+		delta = bbp55_pb - bbp55_sb;
+		if (delta > target)
+			break;
+
+		/* reprogram filter */
+		rf24++;
+		rt3090_rf_write(sc, 24, rf24);
+	}
+	if (ntries < 100) {
+		if (rf24 != init)
+			rf24--;	/* backtrack */
+		*val = rf24;
+		rt3090_rf_write(sc, 24, rf24);
+	}
+
+	/* restore initial state */
+	rt2860_mcu_bbp_write(sc, 24, 0x00);
+
+	/* disable baseband loopback mode */
+	rf22 = rt3090_rf_read(sc, 22);
+	rt3090_rf_write(sc, 22, rf22 & ~RT3070_BB_LOOPBACK);
+
+	return 0;
+}
+
+static void
+rt3090_rf_setup(struct rt2860_softc *sc)
+{
+	uint8_t bbp;
+	int i;
+
+	if (sc->mac_rev >= 0x0211) {
+		/* enable DC filter */
+		rt2860_mcu_bbp_write(sc, 103, 0xc0);
+
+		/* improve power consumption */
+		bbp = rt2860_mcu_bbp_read(sc, 31);
+		rt2860_mcu_bbp_write(sc, 31, bbp & ~0x03);
+	}
+
+	RAL_WRITE(sc, RT2860_TX_SW_CFG1, 0);
+	if (sc->mac_rev < 0x0211) {
+		RAL_WRITE(sc, RT2860_TX_SW_CFG2,
+		    sc->patch_dac ? 0x2c : 0x0f);
+	} else
+		RAL_WRITE(sc, RT2860_TX_SW_CFG2, 0);
+
+	/* initialize RF registers from ROM */
+	for (i = 0; i < 10; i++) {
+		if (sc->rf[i].reg == 0 || sc->rf[i].reg == 0xff)
+			continue;
+		rt3090_rf_write(sc, sc->rf[i].reg, sc->rf[i].val);
+	}
+}
+
+static void
+rt2860_set_leds(struct rt2860_softc *sc, uint16_t which)
+{
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LEDS,
+	    which | (sc->leds & 0x7f), 0);
+}
+
+/*
+ * Hardware has a general-purpose programmable timer interrupt that can
+ * periodically raise MAC_INT_4.
+ */
+static void
+rt2860_set_gp_timer(struct rt2860_softc *sc, int ms)
+{
+	uint32_t tmp;
+
+	/* disable GP timer before reprogramming it */
+	tmp = RAL_READ(sc, RT2860_INT_TIMER_EN);
+	RAL_WRITE(sc, RT2860_INT_TIMER_EN, tmp & ~RT2860_GP_TIMER_EN);
+
+	if (ms == 0)
+		return;
+
+	tmp = RAL_READ(sc, RT2860_INT_TIMER_CFG);
+	ms *= 16;	/* Unit: 64us */
+	tmp = (tmp & 0xffff) | ms << RT2860_GP_TIMER_SHIFT;
+	RAL_WRITE(sc, RT2860_INT_TIMER_CFG, tmp);
+
+	/* enable GP timer */
+	tmp = RAL_READ(sc, RT2860_INT_TIMER_EN);
+	RAL_WRITE(sc, RT2860_INT_TIMER_EN, tmp | RT2860_GP_TIMER_EN);
+}
+
+static void
+rt2860_set_bssid(struct rt2860_softc *sc, const uint8_t *bssid)
+{
+	RAL_WRITE(sc, RT2860_MAC_BSSID_DW0,
+	    bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
+	RAL_WRITE(sc, RT2860_MAC_BSSID_DW1,
+	    bssid[4] | bssid[5] << 8);
+}
+
+static void
+rt2860_set_macaddr(struct rt2860_softc *sc, const uint8_t *addr)
+{
+	RAL_WRITE(sc, RT2860_MAC_ADDR_DW0,
+	    addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
+	RAL_WRITE(sc, RT2860_MAC_ADDR_DW1,
+	    addr[4] | addr[5] << 8 | 0xff << 16);
+}
+
+static void
+rt2860_updateslot(struct ifnet *ifp)
+{
+	struct rt2860_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = ifp->if_l2com;
+	uint32_t tmp;
+
+	tmp = RAL_READ(sc, RT2860_BKOFF_SLOT_CFG);
+	tmp &= ~0xff;
+	tmp |= (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
+	RAL_WRITE(sc, RT2860_BKOFF_SLOT_CFG, tmp);
+}
+
+static void
+rt2860_updateprot(struct ifnet *ifp)
+{
+	struct rt2860_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = ifp->if_l2com;
+	uint32_t tmp;
+
+	tmp = RT2860_RTSTH_EN | RT2860_PROT_NAV_SHORT | RT2860_TXOP_ALLOW_ALL;
+	/* setup protection frame rate (MCS code) */
+	tmp |= IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ?
+	    rt2860_rates[RT2860_RIDX_OFDM6].mcs :
+	    rt2860_rates[RT2860_RIDX_CCK11].mcs;
+
+	/* CCK frames don't require protection */
+	RAL_WRITE(sc, RT2860_CCK_PROT_CFG, tmp);
+
+	if (ic->ic_flags & IEEE80211_F_USEPROT) {
+		if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
+			tmp |= RT2860_PROT_CTRL_RTS_CTS;
+		else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
+			tmp |= RT2860_PROT_CTRL_CTS;
+	}
+	RAL_WRITE(sc, RT2860_OFDM_PROT_CFG, tmp);
+}
+
+static void
+rt2860_update_promisc(struct ifnet *ifp)
+{
+	struct rt2860_softc *sc = ifp->if_softc;
+	uint32_t tmp;
+
+	tmp = RAL_READ(sc, RT2860_RX_FILTR_CFG);
+	tmp &= ~RT2860_DROP_NOT_MYBSS;
+	if (!(ifp->if_flags & IFF_PROMISC))
+		tmp |= RT2860_DROP_NOT_MYBSS;
+	RAL_WRITE(sc, RT2860_RX_FILTR_CFG, tmp);
+}
+
+static int
+rt2860_updateedca(struct ieee80211com *ic)
+{
+	struct rt2860_softc *sc = ic->ic_ifp->if_softc;
+	const struct wmeParams *wmep;
+	int aci;
+
+	wmep = ic->ic_wme.wme_chanParams.cap_wmeParams;
+
+	/* update MAC TX configuration registers */
+	for (aci = 0; aci < WME_NUM_AC; aci++) {
+		RAL_WRITE(sc, RT2860_EDCA_AC_CFG(aci),
+		    wmep[aci].wmep_logcwmax << 16 |
+		    wmep[aci].wmep_logcwmin << 12 |
+		    wmep[aci].wmep_aifsn  <<  8 |
+		    wmep[aci].wmep_txopLimit);
+	}
+
+	/* update SCH/DMA registers too */
+	RAL_WRITE(sc, RT2860_WMM_AIFSN_CFG,
+	    wmep[WME_AC_VO].wmep_aifsn  << 12 |
+	    wmep[WME_AC_VI].wmep_aifsn  <<  8 |
+	    wmep[WME_AC_BK].wmep_aifsn  <<  4 |
+	    wmep[WME_AC_BE].wmep_aifsn);
+	RAL_WRITE(sc, RT2860_WMM_CWMIN_CFG,
+	    wmep[WME_AC_VO].wmep_logcwmin << 12 |
+	    wmep[WME_AC_VI].wmep_logcwmin <<  8 |
+	    wmep[WME_AC_BK].wmep_logcwmin <<  4 |
+	    wmep[WME_AC_BE].wmep_logcwmin);
+	RAL_WRITE(sc, RT2860_WMM_CWMAX_CFG,
+	    wmep[WME_AC_VO].wmep_logcwmax << 12 |
+	    wmep[WME_AC_VI].wmep_logcwmax <<  8 |
+	    wmep[WME_AC_BK].wmep_logcwmax <<  4 |
+	    wmep[WME_AC_BE].wmep_logcwmax);
+	RAL_WRITE(sc, RT2860_WMM_TXOP0_CFG,
+	    wmep[WME_AC_BK].wmep_txopLimit << 16 |
+	    wmep[WME_AC_BE].wmep_txopLimit);
+	RAL_WRITE(sc, RT2860_WMM_TXOP1_CFG,
+	    wmep[WME_AC_VO].wmep_txopLimit << 16 |
+	    wmep[WME_AC_VI].wmep_txopLimit);
+
+	return 0;
+}
+
+#ifdef HW_CRYPTO
+static int
+rt2860_set_key(struct ieee80211com *ic, struct ieee80211_node *ni,
+    struct ieee80211_key *k)
+{
+	struct rt2860_softc *sc = ic->ic_softc;
+	bus_size_t base;
+	uint32_t attr;
+	uint8_t mode, wcid, iv[8];
+
+	/* defer setting of WEP keys until interface is brought up */
+	if ((ic->ic_if.if_flags & (IFF_UP | IFF_RUNNING)) !=
+	    (IFF_UP | IFF_RUNNING))
+		return 0;
+
+	/* 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 EINVAL;
+	}
+
+	if (k->k_flags & IEEE80211_KEY_GROUP) {
+		wcid = 0;	/* NB: update WCID0 for group keys */
+		base = RT2860_SKEY(0, k->k_id);
+	} else {
+		wcid = ((struct rt2860_node *)ni)->wcid;
+		base = RT2860_PKEY(wcid);
+	}
+
+	if (k->k_cipher == IEEE80211_CIPHER_TKIP) {
+		RAL_WRITE_REGION_1(sc, base, k->k_key, 16);
+#ifndef IEEE80211_STA_ONLY
+		if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
+			RAL_WRITE_REGION_1(sc, base + 16, &k->k_key[16], 8);
+			RAL_WRITE_REGION_1(sc, base + 24, &k->k_key[24], 8);
+		} else
+#endif
+		{
+			RAL_WRITE_REGION_1(sc, base + 16, &k->k_key[24], 8);
+			RAL_WRITE_REGION_1(sc, base + 24, &k->k_key[16], 8);
+		}
+	} else
+		RAL_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;
+		}
+		RAL_WRITE_REGION_1(sc, RT2860_IVEIV(wcid), iv, 8);
+	}
+
+	if (k->k_flags & IEEE80211_KEY_GROUP) {
+		/* install group key */
+		attr = RAL_READ(sc, RT2860_SKEY_MODE_0_7);
+		attr &= ~(0xf << (k->k_id * 4));
+		attr |= mode << (k->k_id * 4);
+		RAL_WRITE(sc, RT2860_SKEY_MODE_0_7, attr);
+	} else {
+		/* install pairwise key */
+		attr = RAL_READ(sc, RT2860_WCID_ATTR(wcid));
+		attr = (attr & ~0xf) | (mode << 1) | RT2860_RX_PKEY_EN;
+		RAL_WRITE(sc, RT2860_WCID_ATTR(wcid), attr);
+	}
+	return 0;
+}
+
+static void
+rt2860_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni,
+    struct ieee80211_key *k)
+{
+	struct rt2860_softc *sc = ic->ic_softc;
+	uint32_t attr;
+	uint8_t wcid;
+
+	if (k->k_flags & IEEE80211_KEY_GROUP) {
+		/* remove group key */
+		attr = RAL_READ(sc, RT2860_SKEY_MODE_0_7);
+		attr &= ~(0xf << (k->k_id * 4));
+		RAL_WRITE(sc, RT2860_SKEY_MODE_0_7, attr);
+
+	} else {
+		/* remove pairwise key */
+		wcid = ((struct rt2860_node *)ni)->wcid;
+		attr = RAL_READ(sc, RT2860_WCID_ATTR(wcid));
+		attr &= ~0xf;
+		RAL_WRITE(sc, RT2860_WCID_ATTR(wcid), attr);
+	}
+}
+#endif
+
+static int8_t
+rt2860_rssi2dbm(struct rt2860_softc *sc, uint8_t rssi, uint8_t rxchain)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	struct ieee80211_channel *c = ic->ic_curchan;
+	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;
+}
+
+/*
+ * 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;
+}
+
+static const char *
+rt2860_get_rf(uint8_t 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";
+	case RT3070_RF_3052:	return "RT3052";
+	case RT3070_RF_3320:	return "RT3320";
+	case RT3070_RF_3053:	return "RT3053";
+	default:		return "unknown";
+	}
+}
+
+static int
+rt2860_read_eeprom(struct rt2860_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
+{
+	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 = rt2860_eeprom_read_2;
+	if (sc->mac_ver >= 0x3071) {
+		tmp = RAL_READ(sc, RT3070_EFUSE_CTRL);
+		DPRINTF(("EFUSE_CTRL=0x%08x\n", tmp));
+		if (tmp & RT3070_SEL_EFUSE)
+			sc->sc_srom_read = rt3090_efuse_read_2;
+	}
+
+	/* read EEPROM version */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_VERSION);
+	DPRINTF(("EEPROM rev=%d, FAE=%d\n", val & 0xff, val >> 8));
+
+	/* read MAC address */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_MAC01);
+	macaddr[0] = val & 0xff;
+	macaddr[1] = val >> 8;
+	val = rt2860_srom_read(sc, RT2860_EEPROM_MAC23);
+	macaddr[2] = val & 0xff;
+	macaddr[3] = val >> 8;
+	val = rt2860_srom_read(sc, RT2860_EEPROM_MAC45);
+	macaddr[4] = val & 0xff;
+	macaddr[5] = val >> 8;
+
+	/* read country code */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_COUNTRY);
+	DPRINTF(("EEPROM region code=0x%04x\n", val));
+
+	/* read vendor BBP settings */
+	for (i = 0; i < 8; i++) {
+		val = rt2860_srom_read(sc, RT2860_EEPROM_BBP_BASE + i);
+		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));
+	}
+	if (sc->mac_ver >= 0x3071) {
+		/* read vendor RF settings */
+		for (i = 0; i < 10; i++) {
+			val = rt2860_srom_read(sc, RT3071_EEPROM_RF_BASE + i);
+			sc->rf[i].val = val & 0xff;
+			sc->rf[i].reg = val >> 8;
+			DPRINTF(("RF%d=0x%02x\n", sc->rf[i].reg,
+			    sc->rf[i].val));
+		}
+	}
+
+	/* read RF frequency offset from EEPROM */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_FREQ_LEDS);
+	sc->freq = ((val & 0xff) != 0xff) ? val & 0xff : 0;
+	DPRINTF(("EEPROM freq offset %d\n", sc->freq & 0xff));
+	if ((val >> 8) != 0xff) {
+		/* read LEDs operating mode */
+		sc->leds = val >> 8;
+		sc->led[0] = rt2860_srom_read(sc, RT2860_EEPROM_LED1);
+		sc->led[1] = rt2860_srom_read(sc, RT2860_EEPROM_LED2);
+		sc->led[2] = rt2860_srom_read(sc, RT2860_EEPROM_LED3);
+	} 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 */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_ANTENNA);
+	if (val == 0xffff) {
+		DPRINTF(("invalid EEPROM antenna info, using default\n"));
+		if (sc->mac_ver == 0x3593) {
+			/* default to RF3053 3T3R */
+			sc->rf_rev = RT3070_RF_3053;
+			sc->ntxchains = 3;
+			sc->nrxchains = 3;
+		} else if (sc->mac_ver >= 0x3071) {
+			/* default to RF3020 1T1R */
+			sc->rf_rev = RT3070_RF_3020;
+			sc->ntxchains = 1;
+			sc->nrxchains = 1;
+		} else {
+			/* default to RF2820 1T2R */
+			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 */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_CONFIG);
+	DPRINTF(("EEPROM CFG 0x%04x\n", val));
+	/* check if driver should patch the DAC issue */
+	if ((val >> 8) != 0xff)
+		sc->patch_dac = (val >> 15) & 1;
+	if ((val & 0xff) != 0xff) {
+		sc->ext_5ghz_lna = (val >> 3) & 1;
+		sc->ext_2ghz_lna = (val >> 2) & 1;
+		/* check if RF supports automatic Tx access gain control */
+		sc->calib_2ghz = sc->calib_5ghz = 0; /* XXX (val >> 1) & 1 */;
+		/* check if we have a hardware radio switch */
+		sc->rfswitch = val & 1;
+	}
+	if (sc->sc_flags & RT2860_ADVANCED_PS) {
+		/* read PCIe power save level */
+		val = rt2860_srom_read(sc, RT2860_EEPROM_PCIE_PSLEVEL);
+		if ((val & 0xff) != 0xff) {
+			sc->pslevel = val & 0x3;
+			val = rt2860_srom_read(sc, RT2860_EEPROM_REV);
+			if ((val & 0xff80) != 0x9280)
+				sc->pslevel = MIN(sc->pslevel, 1);
+			DPRINTF(("EEPROM PCIe PS Level=%d\n", sc->pslevel));
+		}
+	}
+
+	/* read power settings for 2GHz channels */
+	for (i = 0; i < 14; i += 2) {
+		val = rt2860_srom_read(sc,
+		    RT2860_EEPROM_PWR2GHZ_BASE1 + i / 2);
+		sc->txpow1[i + 0] = (int8_t)(val & 0xff);
+		sc->txpow1[i + 1] = (int8_t)(val >> 8);
+
+		val = rt2860_srom_read(sc,
+		    RT2860_EEPROM_PWR2GHZ_BASE2 + i / 2);
+		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 < 40; i += 2) {
+		val = rt2860_srom_read(sc,
+		    RT2860_EEPROM_PWR5GHZ_BASE1 + i / 2);
+		sc->txpow1[i + 14] = (int8_t)(val & 0xff);
+		sc->txpow1[i + 15] = (int8_t)(val >> 8);
+
+		val = rt2860_srom_read(sc,
+		    RT2860_EEPROM_PWR5GHZ_BASE2 + i / 2);
+		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 < 40; 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 */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_DELTAPWR);
+	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;
+
+		val = rt2860_srom_read(sc, RT2860_EEPROM_RPWR + ridx * 2);
+		reg = val;
+		val = rt2860_srom_read(sc, RT2860_EEPROM_RPWR + ridx * 2 + 1);
+		reg |= (uint32_t)val << 16;
+
+		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 factory-calibrated samples for temperature compensation */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI1_2GHZ);
+	sc->tssi_2ghz[0] = val & 0xff;	/* [-4] */
+	sc->tssi_2ghz[1] = val >> 8;	/* [-3] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI2_2GHZ);
+	sc->tssi_2ghz[2] = val & 0xff;	/* [-2] */
+	sc->tssi_2ghz[3] = val >> 8;	/* [-1] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI3_2GHZ);
+	sc->tssi_2ghz[4] = val & 0xff;	/* [+0] */
+	sc->tssi_2ghz[5] = val >> 8;	/* [+1] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI4_2GHZ);
+	sc->tssi_2ghz[6] = val & 0xff;	/* [+2] */
+	sc->tssi_2ghz[7] = val >> 8;	/* [+3] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI5_2GHZ);
+	sc->tssi_2ghz[8] = val & 0xff;	/* [+4] */
+	sc->step_2ghz = val >> 8;
+	DPRINTF(("TSSI 2GHz: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x "
+	    "0x%02x 0x%02x step=%d\n", sc->tssi_2ghz[0], sc->tssi_2ghz[1],
+	    sc->tssi_2ghz[2], sc->tssi_2ghz[3], sc->tssi_2ghz[4],
+	    sc->tssi_2ghz[5], sc->tssi_2ghz[6], sc->tssi_2ghz[7],
+	    sc->tssi_2ghz[8], sc->step_2ghz));
+	/* check that ref value is correct, otherwise disable calibration */
+	if (sc->tssi_2ghz[4] == 0xff)
+		sc->calib_2ghz = 0;
+
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI1_5GHZ);
+	sc->tssi_5ghz[0] = val & 0xff;	/* [-4] */
+	sc->tssi_5ghz[1] = val >> 8;	/* [-3] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI2_5GHZ);
+	sc->tssi_5ghz[2] = val & 0xff;	/* [-2] */
+	sc->tssi_5ghz[3] = val >> 8;	/* [-1] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI3_5GHZ);
+	sc->tssi_5ghz[4] = val & 0xff;	/* [+0] */
+	sc->tssi_5ghz[5] = val >> 8;	/* [+1] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI4_5GHZ);
+	sc->tssi_5ghz[6] = val & 0xff;	/* [+2] */
+	sc->tssi_5ghz[7] = val >> 8;	/* [+3] */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_TSSI5_5GHZ);
+	sc->tssi_5ghz[8] = val & 0xff;	/* [+4] */
+	sc->step_5ghz = val >> 8;
+	DPRINTF(("TSSI 5GHz: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x "
+	    "0x%02x 0x%02x step=%d\n", sc->tssi_5ghz[0], sc->tssi_5ghz[1],
+	    sc->tssi_5ghz[2], sc->tssi_5ghz[3], sc->tssi_5ghz[4],
+	    sc->tssi_5ghz[5], sc->tssi_5ghz[6], sc->tssi_5ghz[7],
+	    sc->tssi_5ghz[8], sc->step_5ghz));
+	/* check that ref value is correct, otherwise disable calibration */
+	if (sc->tssi_5ghz[4] == 0xff)
+		sc->calib_5ghz = 0;
+
+	/* read RSSI offsets and LNA gains from EEPROM */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_RSSI1_2GHZ);
+	sc->rssi_2ghz[0] = val & 0xff;	/* Ant A */
+	sc->rssi_2ghz[1] = val >> 8;	/* Ant B */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_RSSI2_2GHZ);
+	if (sc->mac_ver >= 0x3071) {
+		/*
+		 * On RT3090 chips (limited to 2 Rx chains), this ROM
+		 * field contains the Tx mixer gain for the 2GHz band.
+		 */
+		if ((val & 0xff) != 0xff)
+			sc->txmixgain_2ghz = val & 0x7;
+		DPRINTF(("tx mixer gain=%u (2GHz)\n", sc->txmixgain_2ghz));
+	} else
+		sc->rssi_2ghz[2] = val & 0xff;	/* Ant C */
+	sc->lna[2] = val >> 8;		/* channel group 2 */
+
+	val = rt2860_srom_read(sc, RT2860_EEPROM_RSSI1_5GHZ);
+	sc->rssi_5ghz[0] = val & 0xff;	/* Ant A */
+	sc->rssi_5ghz[1] = val >> 8;	/* Ant B */
+	val = rt2860_srom_read(sc, RT2860_EEPROM_RSSI2_5GHZ);
+	sc->rssi_5ghz[2] = val & 0xff;	/* Ant C */
+	sc->lna[3] = val >> 8;		/* channel group 3 */
+
+	val = rt2860_srom_read(sc, RT2860_EEPROM_LNA);
+	if (sc->mac_ver >= 0x3071)
+		sc->lna[0] = RT3090_DEF_LNA;
+	else				/* channel group 0 */
+		sc->lna[0] = val & 0xff;
+	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;
+}
+
+int
+rt2860_bbp_init(struct rt2860_softc *sc)
+{
+#define N(a)	(sizeof (a) / sizeof ((a)[0]))
+	int i, ntries;
+
+	/* wait for BBP to wake up */
+	for (ntries = 0; ntries < 20; ntries++) {
+		uint8_t bbp0 = rt2860_mcu_bbp_read(sc, 0);
+		if (bbp0 != 0 && bbp0 != 0xff)
+			break;
+	}
+	if (ntries == 20) {
+		device_printf(sc->sc_dev,
+		    "timeout waiting for BBP to wake up\n");
+		return ETIMEDOUT;
+	}
+
+	/* initialize BBP registers to default values */
+	for (i = 0; i < N(rt2860_def_bbp); i++) {
+		rt2860_mcu_bbp_write(sc, rt2860_def_bbp[i].reg,
+		    rt2860_def_bbp[i].val);
+	}
+
+	/* fix BBP84 for RT2860E */
+	if (sc->mac_ver == 0x2860 && sc->mac_rev != 0x0101)
+		rt2860_mcu_bbp_write(sc, 84, 0x19);
+
+	if (sc->mac_ver >= 0x3071) {
+		rt2860_mcu_bbp_write(sc, 79, 0x13);
+		rt2860_mcu_bbp_write(sc, 80, 0x05);
+		rt2860_mcu_bbp_write(sc, 81, 0x33);
+	} else if (sc->mac_ver == 0x2860 && sc->mac_rev == 0x0100) {
+		rt2860_mcu_bbp_write(sc, 69, 0x16);
+		rt2860_mcu_bbp_write(sc, 73, 0x12);
+	}
+
+	return 0;
+#undef N
+}
+
+static int
+rt2860_txrx_enable(struct rt2860_softc *sc)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	uint32_t tmp;
+	int ntries;
+
+	/* enable Tx/Rx DMA engine */
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, RT2860_MAC_TX_EN);
+	RAL_BARRIER_READ_WRITE(sc);
+	for (ntries = 0; ntries < 200; ntries++) {
+		tmp = RAL_READ(sc, RT2860_WPDMA_GLO_CFG);
+		if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 200) {
+		device_printf(sc->sc_dev, "timeout waiting for DMA engine\n");
+		return ETIMEDOUT;
+	}
+
+	DELAY(50);
+
+	tmp |= RT2860_RX_DMA_EN | RT2860_TX_DMA_EN |
+	    RT2860_WPDMA_BT_SIZE64 << RT2860_WPDMA_BT_SIZE_SHIFT;
+	RAL_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	/* set Rx filter */
+	tmp = RT2860_DROP_CRC_ERR | RT2860_DROP_PHY_ERR;
+	if (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 (ic->ic_opmode == IEEE80211_M_STA)
+			tmp |= RT2860_DROP_RTS | RT2860_DROP_PSPOLL;
+	}
+	RAL_WRITE(sc, RT2860_RX_FILTR_CFG, tmp);
+
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL,
+	    RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
+
+	return 0;
+}
+
+static void
+rt2860_init(void *arg)
+{
+	struct rt2860_softc *sc = arg;
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+
+	RAL_LOCK(sc);
+	rt2860_init_locked(sc);
+	RAL_UNLOCK(sc);
+
+	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+		ieee80211_start_all(ic);
+}
+
+static void
+rt2860_init_locked(struct rt2860_softc *sc)
+{
+#define N(a)	(sizeof (a) / sizeof ((a)[0]))
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	uint32_t tmp;
+	uint8_t bbp1, bbp3;
+	int i, qid, ridx, ntries, error;
+
+	RAL_LOCK_ASSERT(sc);
+
+	if (sc->rfswitch) {
+		/* hardware has a radio switch on GPIO pin 2 */
+		if (!(RAL_READ(sc, RT2860_GPIO_CTRL) & (1 << 2))) {
+			device_printf(sc->sc_dev,
+			    "radio is disabled by hardware switch\n");
+#ifdef notyet
+			rt2860_stop_locked(sc);
+			return;
+#endif
+		}
+	}
+	RAL_WRITE(sc, RT2860_PWR_PIN_CFG, RT2860_IO_RA_PE);
+
+	/* disable DMA */
+	tmp = RAL_READ(sc, RT2860_WPDMA_GLO_CFG);
+	tmp &= 0xff0;
+	RAL_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	/* PBF hardware reset */
+	RAL_WRITE(sc, RT2860_SYS_CTRL, 0xe1f);
+	RAL_BARRIER_WRITE(sc);
+	RAL_WRITE(sc, RT2860_SYS_CTRL, 0xe00);
+
+	if ((error = rt2860_load_microcode(sc)) != 0) {
+		device_printf(sc->sc_dev, "could not load 8051 microcode\n");
+		rt2860_stop_locked(sc);
+		return;
+	}
+
+	rt2860_set_macaddr(sc, IF_LLADDR(ifp));
+
+	/* init Tx power for all Tx rates (from EEPROM) */
+	for (ridx = 0; ridx < 5; ridx++) {
+		if (sc->txpow20mhz[ridx] == 0xffffffff)
+			continue;
+		RAL_WRITE(sc, RT2860_TX_PWR_CFG(ridx), sc->txpow20mhz[ridx]);
+	}
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		tmp = RAL_READ(sc, RT2860_WPDMA_GLO_CFG);
+		if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev, "timeout waiting for DMA engine\n");
+		rt2860_stop_locked(sc);
+		return;
+	}
+	tmp &= 0xff0;
+	RAL_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	/* reset Rx ring and all 6 Tx rings */
+	RAL_WRITE(sc, RT2860_WPDMA_RST_IDX, 0x1003f);
+
+	/* PBF hardware reset */
+	RAL_WRITE(sc, RT2860_SYS_CTRL, 0xe1f);
+	RAL_BARRIER_WRITE(sc);
+	RAL_WRITE(sc, RT2860_SYS_CTRL, 0xe00);
+
+	RAL_WRITE(sc, RT2860_PWR_PIN_CFG, RT2860_IO_RA_PE | RT2860_IO_RF_PE);
+
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, RT2860_BBP_HRST | RT2860_MAC_SRST);
+	RAL_BARRIER_WRITE(sc);
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, 0);
+
+	for (i = 0; i < N(rt2860_def_mac); i++)
+		RAL_WRITE(sc, rt2860_def_mac[i].reg, rt2860_def_mac[i].val);
+	if (sc->mac_ver >= 0x3071) {
+		/* set delay of PA_PE assertion to 1us (unit of 0.25us) */
+		RAL_WRITE(sc, RT2860_TX_SW_CFG0,
+		    4 << RT2860_DLY_PAPE_EN_SHIFT);
+	}
+
+	if (!(RAL_READ(sc, RT2860_PCI_CFG) & RT2860_PCI_CFG_PCI)) {
+		sc->sc_flags |= RT2860_PCIE;
+		/* PCIe has different clock cycle count than PCI */
+		tmp = RAL_READ(sc, RT2860_US_CYC_CNT);
+		tmp = (tmp & ~0xff) | 0x7d;
+		RAL_WRITE(sc, RT2860_US_CYC_CNT, tmp);
+	}
+
+	/* wait while MAC is busy */
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RT2860_MAC_STATUS_REG) &
+		    (RT2860_RX_STATUS_BUSY | RT2860_TX_STATUS_BUSY)))
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev, "timeout waiting for MAC\n");
+		rt2860_stop_locked(sc);
+		return;
+	}
+
+	/* clear Host to MCU mailbox */
+	RAL_WRITE(sc, RT2860_H2M_BBPAGENT, 0);
+	RAL_WRITE(sc, RT2860_H2M_MAILBOX, 0);
+
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_RFRESET, 0, 0);
+	DELAY(1000);
+
+	if ((error = rt2860_bbp_init(sc)) != 0) {
+		rt2860_stop_locked(sc);
+		return;
+	}
+
+	/* clear RX WCID search table */
+	RAL_SET_REGION_4(sc, RT2860_WCID_ENTRY(0), 0, 512);
+	/* clear pairwise key table */
+	RAL_SET_REGION_4(sc, RT2860_PKEY(0), 0, 2048);
+	/* clear IV/EIV table */
+	RAL_SET_REGION_4(sc, RT2860_IVEIV(0), 0, 512);
+	/* clear WCID attribute table */
+	RAL_SET_REGION_4(sc, RT2860_WCID_ATTR(0), 0, 256);
+	/* clear shared key table */
+	RAL_SET_REGION_4(sc, RT2860_SKEY(0, 0), 0, 8 * 32);
+	/* clear shared key mode */
+	RAL_SET_REGION_4(sc, RT2860_SKEY_MODE_0_7, 0, 4);
+
+	/* init Tx rings (4 EDCAs + HCCA + Mgt) */
+	for (qid = 0; qid < 6; qid++) {
+		RAL_WRITE(sc, RT2860_TX_BASE_PTR(qid), sc->txq[qid].paddr);
+		RAL_WRITE(sc, RT2860_TX_MAX_CNT(qid), RT2860_TX_RING_COUNT);
+		RAL_WRITE(sc, RT2860_TX_CTX_IDX(qid), 0);
+	}
+
+	/* init Rx ring */
+	RAL_WRITE(sc, RT2860_RX_BASE_PTR, sc->rxq.paddr);
+	RAL_WRITE(sc, RT2860_RX_MAX_CNT, RT2860_RX_RING_COUNT);
+	RAL_WRITE(sc, RT2860_RX_CALC_IDX, RT2860_RX_RING_COUNT - 1);
+
+	/* setup maximum buffer sizes */
+	RAL_WRITE(sc, RT2860_MAX_LEN_CFG, 1 << 12 |
+	    (MCLBYTES - sizeof (struct rt2860_rxwi) - 2));
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		tmp = RAL_READ(sc, RT2860_WPDMA_GLO_CFG);
+		if ((tmp & (RT2860_TX_DMA_BUSY | RT2860_RX_DMA_BUSY)) == 0)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 100) {
+		device_printf(sc->sc_dev, "timeout waiting for DMA engine\n");
+		rt2860_stop_locked(sc);
+		return;
+	}
+	tmp &= 0xff0;
+	RAL_WRITE(sc, RT2860_WPDMA_GLO_CFG, tmp);
+
+	/* disable interrupts mitigation */
+	RAL_WRITE(sc, RT2860_DELAY_INT_CFG, 0);
+
+	/* 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;
+		rt2860_mcu_bbp_write(sc, sc->bbp[i].reg, sc->bbp[i].val);
+	}
+
+	/* select Main antenna for 1T1R devices */
+	if (sc->rf_rev == RT3070_RF_2020 ||
+	    sc->rf_rev == RT3070_RF_3020 ||
+	    sc->rf_rev == RT3070_RF_3320)
+		rt3090_set_rx_antenna(sc, 0);
+
+	/* send LEDs operating mode to microcontroller */
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LED1, sc->led[0], 0);
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LED2, sc->led[1], 0);
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_LED3, sc->led[2], 0);
+
+	if (sc->mac_ver >= 0x3071)
+		rt3090_rf_init(sc);
+
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_SLEEP, 0x02ff, 1);
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_WAKEUP, 0, 1);
+
+	if (sc->mac_ver >= 0x3071)
+		rt3090_rf_wakeup(sc);
+
+	/* disable non-existing Rx chains */
+	bbp3 = rt2860_mcu_bbp_read(sc, 3);
+	bbp3 &= ~(1 << 3 | 1 << 4);
+	if (sc->nrxchains == 2)
+		bbp3 |= 1 << 3;
+	else if (sc->nrxchains == 3)
+		bbp3 |= 1 << 4;
+	rt2860_mcu_bbp_write(sc, 3, bbp3);
+
+	/* disable non-existing Tx chains */
+	bbp1 = rt2860_mcu_bbp_read(sc, 1);
+	if (sc->ntxchains == 1)
+		bbp1 = (bbp1 & ~(1 << 3 | 1 << 4));
+	else if (sc->mac_ver == 0x3593 && sc->ntxchains == 2)
+		bbp1 = (bbp1 & ~(1 << 4)) | 1 << 3;
+	else if (sc->mac_ver == 0x3593 && sc->ntxchains == 3)
+		bbp1 = (bbp1 & ~(1 << 3)) | 1 << 4;
+	rt2860_mcu_bbp_write(sc, 1, bbp1);
+
+	if (sc->mac_ver >= 0x3071)
+		rt3090_rf_setup(sc);
+
+	/* select default channel */
+	rt2860_switch_chan(sc, ic->ic_curchan);
+
+	/* reset RF from MCU */
+	rt2860_mcu_cmd(sc, RT2860_MCU_CMD_RFRESET, 0, 0);
+
+	/* set RTS threshold */
+	tmp = RAL_READ(sc, RT2860_TX_RTS_CFG);
+	tmp &= ~0xffff00;
+	tmp |= IEEE80211_RTS_DEFAULT << 8;
+	RAL_WRITE(sc, RT2860_TX_RTS_CFG, tmp);
+
+	/* setup initial protection mode */
+	rt2860_updateprot(ifp);
+
+	/* turn radio LED on */
+	rt2860_set_leds(sc, RT2860_LED_RADIO);
+
+	/* enable Tx/Rx DMA engine */
+	if ((error = rt2860_txrx_enable(sc)) != 0) {
+		rt2860_stop_locked(sc);
+		return;
+	}
+
+	/* clear pending interrupts */
+	RAL_WRITE(sc, RT2860_INT_STATUS, 0xffffffff);
+	/* enable interrupts */
+	RAL_WRITE(sc, RT2860_INT_MASK, 0x3fffc);
+
+	if (sc->sc_flags & RT2860_ADVANCED_PS)
+		rt2860_mcu_cmd(sc, RT2860_MCU_CMD_PSLEVEL, sc->pslevel, 0);
+
+	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+	ifp->if_drv_flags |= IFF_DRV_RUNNING;
+
+	callout_reset(&sc->watchdog_ch, hz, rt2860_watchdog, sc);
+#undef N
+}
+
+static void
+rt2860_stop(void *arg)
+{
+	struct rt2860_softc *sc = arg;
+
+	RAL_LOCK(sc);
+	rt2860_stop_locked(sc);
+	RAL_UNLOCK(sc);
+}
+
+static void
+rt2860_stop_locked(struct rt2860_softc *sc)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	uint32_t tmp;
+	int qid;
+
+	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+		rt2860_set_leds(sc, 0);	/* turn all LEDs off */
+
+	callout_stop(&sc->watchdog_ch);
+	sc->sc_tx_timer = 0;
+	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
+
+	/* disable interrupts */
+	RAL_WRITE(sc, RT2860_INT_MASK, 0);
+
+	/* disable GP timer */
+	rt2860_set_gp_timer(sc, 0);
+
+	/* disable Rx */
+	tmp = RAL_READ(sc, RT2860_MAC_SYS_CTRL);
+	tmp &= ~(RT2860_MAC_RX_EN | RT2860_MAC_TX_EN);
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, tmp);
+
+	/* reset adapter */
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, RT2860_BBP_HRST | RT2860_MAC_SRST);
+	RAL_BARRIER_WRITE(sc);
+	RAL_WRITE(sc, RT2860_MAC_SYS_CTRL, 0);
+
+	/* reset Tx and Rx rings (and reclaim TXWIs) */
+	sc->qfullmsk = 0;
+	for (qid = 0; qid < 6; qid++)
+		rt2860_reset_tx_ring(sc, &sc->txq[qid]);
+	rt2860_reset_rx_ring(sc, &sc->rxq);
+}
+
+int
+rt2860_load_microcode(struct rt2860_softc *sc)
+{
+	const struct firmware *fp;
+	int ntries, error;
+
+	RAL_LOCK_ASSERT(sc);
+
+	RAL_UNLOCK(sc);
+	fp = firmware_get("rt2860fw");
+	RAL_LOCK(sc);
+	if (fp == NULL) {
+		device_printf(sc->sc_dev,
+		    "unable to receive rt2860fw firmware image\n");
+		return EINVAL;
+	}
+
+	/* set "host program ram write selection" bit */
+	RAL_WRITE(sc, RT2860_SYS_CTRL, RT2860_HST_PM_SEL);
+	/* write microcode image */
+	RAL_WRITE_REGION_1(sc, RT2860_FW_BASE, fp->data, fp->datasize);
+	/* kick microcontroller unit */
+	RAL_WRITE(sc, RT2860_SYS_CTRL, 0);
+	RAL_BARRIER_WRITE(sc);
+	RAL_WRITE(sc, RT2860_SYS_CTRL, RT2860_MCU_RESET);
+
+	RAL_WRITE(sc, RT2860_H2M_BBPAGENT, 0);
+	RAL_WRITE(sc, RT2860_H2M_MAILBOX, 0);
+
+	/* wait until microcontroller is ready */
+	RAL_BARRIER_READ_WRITE(sc);
+	for (ntries = 0; ntries < 1000; ntries++) {
+		if (RAL_READ(sc, RT2860_SYS_CTRL) & RT2860_MCU_READY)
+			break;
+		DELAY(1000);
+	}
+	if (ntries == 1000) {
+		device_printf(sc->sc_dev,
+		    "timeout waiting for MCU to initialize\n");
+		error = ETIMEDOUT;
+	} else
+		error = 0;
+
+	firmware_put(fp, FIRMWARE_UNLOAD);
+	return error;
+}
+
+/*
+ * This function is called periodically to adjust Tx power based on
+ * temperature variation.
+ */
+#ifdef NOT_YET
+static void
+rt2860_calib(struct rt2860_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	const uint8_t *tssi;
+	uint8_t step, bbp49;
+	int8_t ridx, d;
+
+	/* read current temperature */
+	bbp49 = rt2860_mcu_bbp_read(sc, 49);
+
+	if (IEEE80211_IS_CHAN_2GHZ(ic->ic_bss->ni_chan)) {
+		tssi = &sc->tssi_2ghz[4];
+		step = sc->step_2ghz;
+	} else {
+		tssi = &sc->tssi_5ghz[4];
+		step = sc->step_5ghz;
+	}
+
+	if (bbp49 < tssi[0]) {		/* lower than reference */
+		/* use higher Tx power than default */
+		for (d = 0; d > -4 && bbp49 <= tssi[d - 1]; d--);
+	} else if (bbp49 > tssi[0]) {	/* greater than reference */
+		/* use lower Tx power than default */
+		for (d = 0; d < +4 && bbp49 >= tssi[d + 1]; d++);
+	} else {
+		/* use default Tx power */
+		d = 0;
+	}
+	d *= step;
+
+	DPRINTF(("BBP49=0x%02x, adjusting Tx power by %d\n", bbp49, d));
+
+	/* write adjusted Tx power values for each Tx rate */
+	for (ridx = 0; ridx < 5; ridx++) {
+		if (sc->txpow20mhz[ridx] == 0xffffffff)
+			continue;
+		RAL_WRITE(sc, RT2860_TX_PWR_CFG(ridx),
+		    b4inc(sc->txpow20mhz[ridx], d));
+	}
+}
+#endif
+
+static void
+rt3090_set_rx_antenna(struct rt2860_softc *sc, int aux)
+{
+	uint32_t tmp;
+
+	if (aux) {
+		tmp = RAL_READ(sc, RT2860_PCI_EECTRL);
+		RAL_WRITE(sc, RT2860_PCI_EECTRL, tmp & ~RT2860_C);
+		tmp = RAL_READ(sc, RT2860_GPIO_CTRL);
+		RAL_WRITE(sc, RT2860_GPIO_CTRL, (tmp & ~0x0808) | 0x08);
+	} else {
+		tmp = RAL_READ(sc, RT2860_PCI_EECTRL);
+		RAL_WRITE(sc, RT2860_PCI_EECTRL, tmp | RT2860_C);
+		tmp = RAL_READ(sc, RT2860_GPIO_CTRL);
+		RAL_WRITE(sc, RT2860_GPIO_CTRL, tmp & ~0x0808);
+	}
+}
+
+static void
+rt2860_switch_chan(struct rt2860_softc *sc, struct ieee80211_channel *c)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	u_int chan, group;
+
+	chan = ieee80211_chan2ieee(ic, c);
+	if (chan == 0 || chan == IEEE80211_CHAN_ANY)
+		return;
+
+	if (sc->mac_ver >= 0x3071)
+		rt3090_set_chan(sc, chan);
+	else
+		rt2860_set_chan(sc, chan);
+
+	/* 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! */
+	rt2860_select_chan_group(sc, group);
+
+	DELAY(1000);
+}
+
+static int
+rt2860_setup_beacon(struct rt2860_softc *sc, struct ieee80211vap *vap)
+{
+	struct ieee80211com *ic = vap->iv_ic;
+	struct ieee80211_beacon_offsets bo;
+	struct rt2860_txwi txwi;
+	struct mbuf *m;
+	int ridx;
+
+	if ((m = ieee80211_beacon_alloc(vap->iv_bss, &bo)) == NULL)
+		return ENOBUFS;
+
+	memset(&txwi, 0, sizeof txwi);
+	txwi.wcid = 0xff;
+	txwi.len = htole16(m->m_pkthdr.len);
+	/* send beacons at the lowest available rate */
+	ridx = IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan) ?
+	    RT2860_RIDX_OFDM6 : RT2860_RIDX_CCK1;
+	txwi.phy = htole16(rt2860_rates[ridx].mcs);
+	if (rt2860_rates[ridx].phy == IEEE80211_T_OFDM)
+		txwi.phy |= htole16(RT2860_PHY_OFDM);
+	txwi.txop = RT2860_TX_TXOP_HT;
+	txwi.flags = RT2860_TX_TS;
+	txwi.xflags = RT2860_TX_NSEQ;
+
+	RAL_WRITE_REGION_1(sc, RT2860_BCN_BASE(0),
+	    (uint8_t *)&txwi, sizeof txwi);
+	RAL_WRITE_REGION_1(sc, RT2860_BCN_BASE(0) + sizeof txwi,
+	    mtod(m, uint8_t *), m->m_pkthdr.len);
+
+	m_freem(m);
+
+	return 0;
+}
+
+static void
+rt2860_enable_tsf_sync(struct rt2860_softc *sc)
+{
+	struct ifnet *ifp = sc->sc_ifp;
+	struct ieee80211com *ic = ifp->if_l2com;
+	struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
+	uint32_t tmp;
+
+	tmp = RAL_READ(sc, RT2860_BCN_TIME_CFG);
+
+	tmp &= ~0x1fffff;
+	tmp |= vap->iv_bss->ni_intval * 16;
+	tmp |= RT2860_TSF_TIMER_EN | RT2860_TBTT_TIMER_EN;
+	if (vap->iv_opmode == IEEE80211_M_STA) {
+		/*
+		 * Local TSF is always updated with remote TSF on beacon
+		 * reception.
+		 */
+		tmp |= 1 << RT2860_TSF_SYNC_MODE_SHIFT;
+	}
+	else if (vap->iv_opmode == IEEE80211_M_IBSS ||
+	    vap->iv_opmode == IEEE80211_M_MBSS) {
+		tmp |= RT2860_BCN_TX_EN;
+		/*
+		 * Local TSF is updated with remote TSF on beacon reception
+		 * only if the remote TSF is greater than local TSF.
+		 */
+		tmp |= 2 << RT2860_TSF_SYNC_MODE_SHIFT;
+	} else if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
+		tmp |= RT2860_BCN_TX_EN;
+		/* SYNC with nobody */
+		tmp |= 3 << RT2860_TSF_SYNC_MODE_SHIFT;
+	}
+
+	RAL_WRITE(sc, RT2860_BCN_TIME_CFG, tmp);
+}