Driver for Ralink Technology RT2500 wireless adapters.

3 files changed, 2757 insertions, 0 deletions

diff --git a/sys/dev/ic/ral.c b/sys/dev/ic/ral.c
new file mode 100644
index 00000000000..49e05980d98
--- /dev/null
+++ b/sys/dev/ic/ral.c
@@ -0,0 +1,2296 @@
+/*	$OpenBSD: ral.c,v 1.1 2005/02/15 20:51:20 damien Exp $  */
+
+/*-
+ * Copyright (c) 2005
+ *	Damien Bergamini <damien.bergamini@free.fr>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*-
+ * Ralink Technology RT2500 chipset driver
+ * http://www.ralinktech.com/
+ *
+ * The chipset includes a RT2525 Radio Transceiver and a RT2560 MAC/BBP.
+ */
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/timeout.h>
+#include <sys/conf.h>
+
+#include <machine/bus.h>
+#include <machine/endian.h>
+#include <machine/intr.h>
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/if_ether.h>
+#include <netinet/ip.h>
+
+#include <net80211/ieee80211_var.h>
+#include <net80211/ieee80211_rssadapt.h>
+#include <net80211/ieee80211_radiotap.h>
+
+#include <dev/ic/ralreg.h>
+#include <dev/ic/ralvar.h>
+
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcidevs.h>
+
+#define RAL_DEBUG
+
+#ifdef RAL_DEBUG
+#define DPRINTF(x)	if (ral_debug > 0) printf x
+#define DPRINTFN(n, x)	if (ral_debug >= (n)) printf x
+int ral_debug = 14;
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n, x)
+#endif
+
+static const struct ieee80211_rateset ral_rateset_11a =
+	{ 8, { 12, 18, 24, 36, 48, 72, 96, 108 } };
+
+static const struct ieee80211_rateset ral_rateset_11b =
+	{ 4, { 2, 4, 11, 22 } };
+
+static const struct ieee80211_rateset ral_rateset_11g =
+	{ 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } };
+
+int	ral_alloc_tx_ring(struct ral_softc *, struct ral_tx_ring *, int);
+void	ral_reset_tx_ring(struct ral_softc *, struct ral_tx_ring *);
+void	ral_free_tx_ring(struct ral_softc *, struct ral_tx_ring *);
+int	ral_alloc_rx_ring(struct ral_softc *, struct ral_rx_ring *, int);
+void	ral_reset_rx_ring(struct ral_softc *, struct ral_rx_ring *);
+void	ral_free_rx_ring(struct ral_softc *, struct ral_rx_ring *);
+int	ral_media_change(struct ifnet *);
+void	ral_next_scan(void *);
+void	ral_rssadapt_updatestats(void *);
+int	ral_newstate(struct ieee80211com *, enum ieee80211_state, int);
+uint16_t	ral_eeprom_read(struct ral_softc *, uint8_t);
+void	ral_encryption_intr(struct ral_softc *);
+void	ral_tx_intr(struct ral_softc *);
+void	ral_prio_intr(struct ral_softc *);
+void	ral_decryption_intr(struct ral_softc *);
+void	ral_rx_intr(struct ral_softc *);
+void	ral_beacon_expire(struct ral_softc *);
+void	ral_wakeup_expire(struct ral_softc *);
+uint8_t	ral_plcp_signal(int);
+#if 0
+int	ral_tx_bcn(struct ral_softc *, struct mbuf *, struct ieee80211_node *);
+#endif
+int	ral_tx_mgt(struct ral_softc *, struct mbuf *, struct ieee80211_node *);
+int	ral_tx_data(struct ral_softc *, struct mbuf *, struct ieee80211_node *);
+void	ral_start(struct ifnet *);
+void	ral_watchdog(struct ifnet *);
+int	ral_ioctl(struct ifnet *, u_long, caddr_t);
+void	ral_bbp_write(struct ral_softc *, uint8_t, uint8_t);
+uint8_t	ral_bbp_read(struct ral_softc *, uint8_t);
+void	ral_rf_write(struct ral_softc *, uint8_t, uint32_t);
+void	ral_set_chan(struct ral_softc *, struct ieee80211_channel *);
+void	ral_disable_rf_tune(struct ral_softc *);
+void	ral_enable_tsf_sync(struct ral_softc *);
+void	ral_update_plcp(struct ral_softc *);
+void	ral_update_led(struct ral_softc *, int, int);
+void	ral_set_bssid(struct ral_softc *, uint8_t *);
+void	ral_set_macaddr(struct ral_softc *, uint8_t *);
+int	ral_read_eeprom(struct ral_softc *);
+int	ral_bbp_init(struct ral_softc *);
+int	ral_init(struct ifnet *);
+void	ral_stop(struct ifnet *, int);
+
+/*
+ * Default values for MAC registers; values taken from the reference driver.
+ */
+static const struct {
+	uint32_t	reg;
+	uint32_t	val;
+} ral_def_mac[] = {
+	{ RAL_PSCSR0,    0x00020002 },
+	{ RAL_PSCSR1,    0x00000002 },
+	{ RAL_PSCSR2,    0x00020002 },
+	{ RAL_PSCSR3,    0x00000002 },
+	{ RAL_TIMECSR,   0x00003f21 },
+	{ RAL_CSR9,      0x00000780 },
+	{ RAL_CSR11,     0x07041483 },
+	{ RAL_CSR18,     0x00140000 },
+	{ RAL_CSR19,     0x016C0028 },
+	{ RAL_CNT3,      0x00000000 },
+	{ RAL_TXCSR1,    0x07614562 },
+	{ RAL_TXCSR8,    0x8c8d8b8a },
+	{ RAL_ARTCSR0,   0x7038140a },
+	{ RAL_ARTCSR1,   0x1d21252d },
+	{ RAL_ARTCSR2,   0x1919191d },
+	{ RAL_RXCSR0,    0xffffffff },
+	{ RAL_RXCSR3,    0xb3aab3af },
+	{ RAL_PCICSR,    0x000003b8 },
+	{ RAL_PWRCSR0,   0x3f3b3100 },
+	{ RAL_GPIOCSR,   0x0000ff00 },
+	{ RAL_TESTCSR,   0x000000f0 },
+	{ RAL_PWRCSR1,   0x000001ff },
+	{ RAL_MACCSR0,   0x00213223 },
+	{ RAL_MACCSR1,   0x00235518 },
+	{ RAL_MACCSR2,   0x00000040 },
+	{ RAL_RALINKCSR, 0x9a009a11 },
+	{ RAL_CSR7,      0xffffffff },
+	{ RAL_BBPCSR1,   0x82188200 },
+	{ RAL_TXACKCSR0, 0x00000020 },
+	{ RAL_SECCSR3,   0x0000e78f }
+};
+
+/*
+ * Default values for BBP registers; values taken from the reference driver.
+ */
+static const struct {
+	uint8_t	reg;
+	uint8_t	val;
+} ral_def_bbp[] = {
+	{  3, 0x02 },
+	{  4, 0x19 },
+	{ 14, 0x1c },
+	{ 15, 0x30 },
+	{ 16, 0xac },
+	{ 17, 0x48 },
+	{ 18, 0x18 },
+	{ 19, 0xff },
+	{ 20, 0x1e },
+	{ 21, 0x08 },
+	{ 22, 0x08 },
+	{ 23, 0x08 },
+	{ 24, 0x70 },
+	{ 25, 0x40 },
+	{ 26, 0x08 },
+	{ 27, 0x23 },
+	{ 30, 0x10 },
+	{ 31, 0x2b },
+	{ 32, 0xb9 },
+	{ 34, 0x12 },
+	{ 35, 0x50 },
+	{ 39, 0xc4 },
+	{ 40, 0x02 },
+	{ 41, 0x60 },
+	{ 53, 0x10 },
+	{ 54, 0x18 },
+	{ 56, 0x08 },
+	{ 57, 0x10 },
+	{ 58, 0x08 },
+	{ 61, 0x6d },
+	{ 62, 0x10 }
+};
+
+/*
+ * Default values for RF register R2 indexed by channel numbers; values taken
+ * from the reference driver.
+ */
+static const uint32_t ral_rf2522_r2[] = {
+	0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814,
+	0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e
+};
+
+static const uint32_t ral_rf2523_r2[] = {
+	0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
+	0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
+};
+
+static const uint32_t ral_rf2524_r2[] = {
+	0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d,
+	0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346
+};
+
+static const uint32_t ral_rf2525_r2[] = {
+	0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d,
+	0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346
+};
+
+static const uint32_t ral_rf2525_hi_r2[] = {
+	0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345,
+	0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e
+};
+
+static const uint32_t ral_rf2525e_r2[] = {
+	0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463,
+	0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b
+};
+
+/*
+ * For dual-band RF, RF registers R1 and R4 also depend on channel number;
+ * values taken from the reference driver.
+ */
+static const struct {
+	uint8_t		chan;
+	uint32_t	r1;
+	uint32_t	r2;
+	uint32_t	r4;
+} ral_rf5222[] = {
+	/* channels on the 2.4GHz band */
+	{   1, 0x08808, 0x0044d, 0x00282 },
+	{   2, 0x08808, 0x0044e, 0x00282 },
+	{   3, 0x08808, 0x0044f, 0x00282 },
+	{   4, 0x08808, 0x00460, 0x00282 },
+	{   5, 0x08808, 0x00461, 0x00282 },
+	{   6, 0x08808, 0x00462, 0x00282 },
+	{   7, 0x08808, 0x00463, 0x00282 },
+	{   8, 0x08808, 0x00464, 0x00282 },
+	{   9, 0x08808, 0x00465, 0x00282 },
+	{  10, 0x08808, 0x00466, 0x00282 },
+	{  11, 0x08808, 0x00467, 0x00282 },
+	{  12, 0x08808, 0x00468, 0x00282 },
+	{  13, 0x08808, 0x00469, 0x00282 },
+	{  14, 0x08808, 0x0046b, 0x00286 },
+
+	/* channels on the 5.2GHz band */
+	{  36, 0x08804, 0x06225, 0x00287 },
+	{  40, 0x08804, 0x06226, 0x00287 },
+	{  44, 0x08804, 0x06227, 0x00287 },
+	{  48, 0x08804, 0x06228, 0x00287 },
+	{  52, 0x08804, 0x06229, 0x00287 },
+	{  56, 0x08804, 0x0622a, 0x00287 },
+	{  60, 0x08804, 0x0622b, 0x00287 },
+	{  64, 0x08804, 0x0622c, 0x00287 },
+
+	{ 100, 0x08804, 0x02200, 0x00283 },
+	{ 104, 0x08804, 0x02201, 0x00283 },
+	{ 108, 0x08804, 0x02202, 0x00283 },
+	{ 112, 0x08804, 0x02203, 0x00283 },
+	{ 116, 0x08804, 0x02204, 0x00283 },
+	{ 120, 0x08804, 0x02205, 0x00283 },
+	{ 124, 0x08804, 0x02206, 0x00283 },
+	{ 128, 0x08804, 0x02207, 0x00283 },
+	{ 132, 0x08804, 0x02208, 0x00283 },
+	{ 136, 0x08804, 0x02209, 0x00283 },
+	{ 140, 0x08804, 0x0220a, 0x00283 },
+
+	{ 149, 0x08808, 0x02429, 0x00281 },
+	{ 153, 0x08808, 0x0242b, 0x00281 },
+	{ 157, 0x08808, 0x0242d, 0x00281 },
+	{ 161, 0x08808, 0x0242f, 0x00281 }
+};
+
+int
+ral_attach(struct ral_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	uint32_t val;
+	int i;
+
+	timeout_set(&sc->scan_ch, ral_next_scan, sc);
+	timeout_set(&sc->rssadapt_ch, ral_rssadapt_updatestats, sc);
+
+	/* retrieve RT2560 revision */
+	sc->asic_rev = RAL_READ(sc, RAL_CSR0);
+
+	if (ral_read_eeprom(sc) != 0) {
+		printf(": could not read EEPROM\n");
+		goto fail;
+	}
+
+	/*
+	 * Allocate Tx and Rx rings.
+	 */
+	if (ral_alloc_tx_ring(sc, &sc->txq, RAL_TX_RING_COUNT) != 0) {
+		printf(": could not allocate Tx ring\n");
+		goto fail;
+	}
+
+	if (ral_alloc_tx_ring(sc, &sc->atimq, RAL_ATIM_RING_COUNT) != 0) {
+		printf(": could not allocate ATIM ring\n");
+		goto fail;
+	}
+
+	if (ral_alloc_tx_ring(sc, &sc->prioq, RAL_PRIO_RING_COUNT) != 0) {
+		printf(": could not allocate Prio ring\n");
+		goto fail;
+	}
+
+	if (ral_alloc_tx_ring(sc, &sc->bcnq, RAL_BEACON_RING_COUNT) != 0) {
+		printf(": could not allocate Beacon ring\n");
+		goto fail;
+	}
+
+	if (ral_alloc_rx_ring(sc, &sc->rxq, RAL_RX_RING_COUNT) != 0) {
+		printf(": could not allocate Rx ring\n");
+		goto fail;
+	}
+
+	ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
+	ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
+	ic->ic_state = IEEE80211_S_INIT;
+
+	/* set device capabilities */
+	ic->ic_caps = IEEE80211_C_MONITOR | IEEE80211_C_IBSS |
+	    IEEE80211_C_SHPREAMBLE | IEEE80211_C_PMGT | IEEE80211_C_TXPMGT |
+	    IEEE80211_C_WEP;
+
+	/* read MAC address */
+	val = RAL_READ(sc, RAL_CSR3);
+	ic->ic_myaddr[0] = val & 0xff;
+	ic->ic_myaddr[1] = (val >>  8) & 0xff;
+	ic->ic_myaddr[2] = (val >> 16) & 0xff;
+	ic->ic_myaddr[3] = (val >> 24) & 0xff;
+	val = RAL_READ(sc, RAL_CSR4);
+	ic->ic_myaddr[4] = val & 0xff;
+	ic->ic_myaddr[5] = (val >> 8) & 0xff;
+
+	printf(", address %s\n", ether_sprintf(ic->ic_myaddr));
+
+	if (sc->rf_rev == RAL_RF_5222) {
+		/* set supported .11a rates */
+		ic->ic_sup_rates[IEEE80211_MODE_11A] = ral_rateset_11a;
+
+		/* set supported .11a channels */
+		for (i = 36; i <= 64; i += 4) {
+			ic->ic_channels[i].ic_freq =
+			    ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
+			ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
+		}
+		for (i = 100; i <= 140; i += 4) {
+			ic->ic_channels[i].ic_freq =
+			    ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
+			ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
+		}
+		for (i = 149; i <= 161; i += 4) {
+			ic->ic_channels[i].ic_freq =
+			    ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ);
+			ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A;
+		}
+	}
+
+	/* set supported .11b and .11g rates */
+	ic->ic_sup_rates[IEEE80211_MODE_11B] = ral_rateset_11b;
+	ic->ic_sup_rates[IEEE80211_MODE_11G] = ral_rateset_11g;
+
+	/* set supported .11b and .11g channels (1 through 14) */
+	for (i = 1; i <= 11; i++) {
+		ic->ic_channels[i].ic_freq =
+		    ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ);
+		ic->ic_channels[i].ic_flags =
+		    IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM |
+		    IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
+	}
+
+	/* IBSS channel undefined for now */
+	ic->ic_ibss_chan = &ic->ic_channels[0];
+
+	ifp->if_softc = sc;
+	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
+	ifp->if_init = ral_init;
+	ifp->if_ioctl = ral_ioctl;
+	ifp->if_start = ral_start;
+	ifp->if_watchdog = ral_watchdog;
+	IFQ_SET_READY(&ifp->if_snd);
+	memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ);
+
+	if_attach(ifp);
+	ieee80211_ifattach(ifp);
+	/* override state transition machine */
+	sc->sc_newstate = ic->ic_newstate;
+	ic->ic_newstate = ral_newstate;
+	ieee80211_media_init(ifp, ral_media_change, ieee80211_media_status);
+
+#if NBPFILTER > 0
+	bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO,
+	    sizeof (struct ieee80211_frame) + 64);
+
+	sc->sc_rxtap_len = sizeof sc->sc_rxtapu;
+	sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
+	sc->sc_rxtap.wr_ihdr.it_present = htole32(RAL_RX_RADIOTAP_PRESENT);
+
+	sc->sc_txtap_len = sizeof sc->sc_txtapu;
+	sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
+	sc->sc_txtap.wt_ihdr.it_present = htole32(RAL_TX_RADIOTAP_PRESENT);
+#endif
+
+	return 0;
+
+fail:	/*ral_detach(sc);*/
+	return ENXIO;
+}
+
+int
+ral_detach(struct ral_softc *sc)
+{
+	struct ifnet *ifp = &sc->sc_ic.ic_if;
+
+	timeout_del(&sc->scan_ch);
+	timeout_del(&sc->rssadapt_ch);
+
+#if NBPFILTER > 0
+	bpfdetach(ifp);
+#endif
+	ieee80211_ifdetach(ifp);
+	if_detach(ifp);
+
+	ral_free_tx_ring(sc, &sc->txq);
+	ral_free_tx_ring(sc, &sc->prioq);
+	ral_free_tx_ring(sc, &sc->atimq);
+	ral_free_tx_ring(sc, &sc->bcnq);
+	ral_free_rx_ring(sc, &sc->rxq);
+
+	return 0;
+}
+
+int
+ral_alloc_tx_ring(struct ral_softc *sc, struct ral_tx_ring *ring, int count)
+{
+	int i, nsegs, error;
+
+	ring->count = count;
+	ring->queued = 0;
+	ring->cur = ring->next = 0;
+	ring->cur_encrypt = ring->next_encrypt = 0;
+
+	error = bus_dmamap_create(sc->sc_dmat, count * RAL_TX_DESC_SIZE, 1,
+	    count * RAL_TX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map);
+	if (error != 0) {
+		printf("%s: could not create desc DMA map\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	error = bus_dmamem_alloc(sc->sc_dmat, count * RAL_TX_DESC_SIZE,
+	    PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not allocate DMA memory\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs,
+	    count * RAL_TX_DESC_SIZE, (caddr_t *)&ring->desc, BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not map desc DMA memory\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	error = bus_dmamap_load(sc->sc_dmat, ring->map, ring->desc,
+	    count * RAL_TX_DESC_SIZE, NULL, BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not load desc DMA map\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	memset(ring->desc, 0, count * RAL_TX_DESC_SIZE);
+	ring->physaddr = ring->map->dm_segs->ds_addr;
+
+	ring->data = malloc(count * sizeof (struct ral_tx_data), M_DEVBUF,
+	    M_NOWAIT);
+	if (ring->data == NULL) {
+		printf("%s: could not allocate soft data\n",
+		    sc->sc_dev.dv_xname);
+		error = ENOMEM;
+		goto fail;
+	}
+
+	for (i = 0; i < count; i++) {
+		error = bus_dmamap_create(sc->sc_dmat, MCLBYTES,
+		    RAL_MAX_SCATTER, MCLBYTES, 0, BUS_DMA_NOWAIT,
+		    &ring->data[i].map);
+		if (error != 0) {
+			printf("%s: could not create DMA map\n",
+			    sc->sc_dev.dv_xname);
+			goto fail;
+		}
+	}
+
+	return 0;
+
+fail:	ral_free_tx_ring(sc, ring);
+	return error;
+}
+
+void
+ral_reset_tx_ring(struct ral_softc *sc, struct ral_tx_ring *ring)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ral_tx_desc *desc;
+	struct ral_tx_data *data;
+	int i;
+
+	for (i = 0; i < ring->count; i++) {
+		desc = &ring->desc[i];
+		data = &ring->data[i];
+
+		if (data->m != NULL) {
+			bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+			    data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
+			bus_dmamap_unload(sc->sc_dmat, data->map);
+			m_freem(data->m);
+			data->m = NULL;
+		}
+
+		if (data->ni != NULL && data->ni != ic->ic_bss) {
+			ieee80211_free_node(ic, data->ni);
+			data->ni = NULL;
+		}
+
+		desc->flags = 0;
+	}
+
+	bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize,
+	    BUS_DMASYNC_PREWRITE);
+
+	ring->queued = 0;
+	ring->cur = ring->next = 0;
+	ring->cur_encrypt = ring->next_encrypt = 0;
+}
+
+void
+ral_free_tx_ring(struct ral_softc *sc, struct ral_tx_ring *ring)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ral_tx_data *data;
+	int i;
+
+	if (ring->desc != NULL) {
+		bus_dmamap_sync(sc->sc_dmat, ring->map, 0,
+		    ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(sc->sc_dmat, ring->map);
+		bus_dmamem_free(sc->sc_dmat, &ring->seg, 1);
+	}
+
+	if (ring->data != NULL) {
+		for (i = 0; i < ring->count; i++) {
+			data = &ring->data[i];
+
+			if (data->m != NULL) {
+				bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+				    data->map->dm_mapsize,
+				    BUS_DMASYNC_POSTWRITE);
+				bus_dmamap_unload(sc->sc_dmat, data->map);
+				m_freem(data->m);
+			}
+
+			if (data->ni != NULL && data->ni != ic->ic_bss)
+				ieee80211_free_node(ic, data->ni);
+
+			if (data->map != NULL)
+				bus_dmamap_destroy(sc->sc_dmat, data->map);
+		}
+		free(ring->data, M_DEVBUF);
+	}
+}
+
+int
+ral_alloc_rx_ring(struct ral_softc *sc, struct ral_rx_ring *ring, int count)
+{
+	struct ral_rx_desc *desc;
+	struct ral_rx_data *data;
+	int i, nsegs, error;
+
+	ring->count = count;
+	ring->cur = ring->next = 0;
+	ring->cur_decrypt = 0;
+
+	error = bus_dmamap_create(sc->sc_dmat, count * RAL_RX_DESC_SIZE, 1,
+	    count * RAL_RX_DESC_SIZE, 0, BUS_DMA_NOWAIT, &ring->map);
+	if (error != 0) {
+		printf("%s: could not create desc DMA map\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	error = bus_dmamem_alloc(sc->sc_dmat, count * RAL_RX_DESC_SIZE,
+	    PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not allocate DMA memory\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs,
+	    count * RAL_RX_DESC_SIZE, (caddr_t *)&ring->desc, BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not map desc DMA memory\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	error = bus_dmamap_load(sc->sc_dmat, ring->map, ring->desc,
+	    count * RAL_RX_DESC_SIZE, NULL, BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not load desc DMA map\n",
+		    sc->sc_dev.dv_xname);
+		goto fail;
+	}
+
+	memset(ring->desc, 0, count * RAL_RX_DESC_SIZE);
+	ring->physaddr = ring->map->dm_segs->ds_addr;
+
+	ring->data = malloc(count * sizeof (struct ral_rx_data), M_DEVBUF,
+	    M_NOWAIT);
+	if (ring->data == NULL) {
+		printf("%s: could not allocate soft data\n",
+		    sc->sc_dev.dv_xname);
+		error = ENOMEM;
+		goto fail;
+	}
+
+	/*
+	 * Pre-allocate Rx buffers and populate Rx ring
+	 */
+	for (i = 0; i < count; i++) {
+		desc = &sc->rxq.desc[i];
+		data = &sc->rxq.data[i];
+
+		error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES,
+		    0, BUS_DMA_NOWAIT, &data->map);
+		if (error != 0) {
+			printf("%s: could not create DMA map\n",
+			    sc->sc_dev.dv_xname);
+			goto fail;
+		}
+
+		MGETHDR(data->m, M_DONTWAIT, MT_DATA);
+		if (data->m == NULL) {
+			printf("%s: could not allocate rx mbuf\n",
+			    sc->sc_dev.dv_xname);
+			error = ENOMEM;
+			goto fail;
+		}
+
+		MCLGET(data->m, M_DONTWAIT);
+		if (!(data->m->m_flags & M_EXT)) {
+			m_freem(data->m);
+			printf("%s: could not allocate rx mbuf cluster\n",
+			    sc->sc_dev.dv_xname);
+			error = ENOMEM;
+			goto fail;
+		}
+
+		error = bus_dmamap_load(sc->sc_dmat, data->map,
+		    mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT);
+		if (error != 0) {
+			printf("%s: could not load rx buf DMA map",
+			    sc->sc_dev.dv_xname);
+			goto fail;
+		}
+
+		desc->flags = htole32(RAL_RX_BUSY);
+		desc->physaddr = htole32(data->map->dm_segs->ds_addr);
+	}
+
+	bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize,
+	    BUS_DMASYNC_PREWRITE);
+
+	return 0;
+
+fail:	ral_free_rx_ring(sc, ring);
+	return error;
+}
+
+void
+ral_reset_rx_ring(struct ral_softc *sc, struct ral_rx_ring *ring)
+{
+	int i;
+
+	for (i = 0; i < ring->count; i++) {
+		ring->desc[i].flags = htole32(RAL_RX_BUSY);
+		ring->data[i].drop = 0;
+	}
+
+	bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize,
+	    BUS_DMASYNC_PREWRITE);
+
+	ring->cur = ring->next = 0;
+	ring->cur_decrypt = 0;
+}
+
+void
+ral_free_rx_ring(struct ral_softc *sc, struct ral_rx_ring *ring)
+{
+	struct ral_rx_data *data;
+	int i;
+
+	if (ring->desc != NULL) {
+		bus_dmamap_sync(sc->sc_dmat, ring->map, 0,
+		    ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(sc->sc_dmat, ring->map);
+		bus_dmamem_free(sc->sc_dmat, &ring->seg, 1);
+	}
+
+	if (ring->data != NULL) {
+		for (i = 0; i < ring->count; i++) {
+			data = &ring->data[i];
+
+			if (data->m != NULL) {
+				bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+				    data->map->dm_mapsize,
+				    BUS_DMASYNC_POSTREAD);
+				bus_dmamap_unload(sc->sc_dmat, data->map);
+				m_freem(data->m);
+			}
+
+			if (data->map != NULL)
+				bus_dmamap_destroy(sc->sc_dmat, data->map);
+		}
+		free(ring->data, M_DEVBUF);
+	}
+}
+
+int
+ral_media_change(struct ifnet *ifp)
+{
+	int error;
+
+	error = ieee80211_media_change(ifp);
+	if (error != ENETRESET)
+		return error;
+
+	if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
+		ral_init(ifp);
+
+	return 0;
+}
+
+/*
+ * This function is called periodically (every 200ms) during scanning to
+ * switch from one channel to another.
+ */
+void
+ral_next_scan(void *arg)
+{
+	struct ral_softc *sc = arg;
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+
+	if (ic->ic_state == IEEE80211_S_SCAN)
+		ieee80211_next_scan(ifp);
+}
+
+/*
+ * This function is called periodically (every 100ms) in RUN state to update
+ * the rate adaptation statistics.
+ */
+void
+ral_rssadapt_updatestats(void *arg)
+{
+	struct ral_softc *sc = arg;
+
+	ieee80211_rssadapt_updatestats(&sc->rssadapt);
+
+	timeout_add(&sc->rssadapt_ch, hz / 10);
+}
+
+int
+ral_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
+{
+	struct ral_softc *sc = ic->ic_if.if_softc;
+        enum ieee80211_state ostate;
+
+	ostate = ic->ic_state;
+	timeout_del(&sc->scan_ch);
+
+	switch (nstate) {
+	case IEEE80211_S_INIT:
+		timeout_del(&sc->rssadapt_ch);
+
+		switch (ostate) {
+		case IEEE80211_S_RUN:
+			/* abort TSF synchronization */
+			RAL_WRITE(sc, RAL_CSR14, 0);
+
+			/* turn activity led off */
+			if (sc->led_mode != RAL_LED_MODE_SINGLE)
+				ral_update_led(sc, 0, 0);
+
+			sc->sc_newstate(ic, nstate, arg);
+			break;
+
+		default:
+			sc->sc_newstate(ic, nstate, arg);
+		}
+		break;
+
+	case IEEE80211_S_SCAN:
+		ral_set_chan(sc, ic->ic_bss->ni_chan);
+		timeout_add(&sc->scan_ch, hz / 5);
+		sc->sc_newstate(ic, nstate, arg);
+		break;
+
+	case IEEE80211_S_AUTH:
+		ral_set_chan(sc, ic->ic_bss->ni_chan);
+		sc->sc_newstate(ic, nstate, arg);
+		break;
+
+	case IEEE80211_S_ASSOC:
+		sc->sc_newstate(ic, nstate, arg);
+		break;
+
+	case IEEE80211_S_RUN:
+		ral_set_bssid(sc, ic->ic_bss->ni_bssid);
+
+		ral_enable_tsf_sync(sc);
+
+		if (sc->led_mode != RAL_LED_MODE_SINGLE)
+			ral_update_led(sc, 1, 0);
+
+		timeout_add(&sc->rssadapt_ch, hz / 10);
+
+		sc->sc_newstate(ic, nstate, arg);
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
+ * 93C66).
+ */
+uint16_t
+ral_eeprom_read(struct ral_softc *sc, uint8_t addr)
+{
+	uint32_t tmp;
+	uint16_t val;
+	int n;
+
+	/* Clock C once before the first command */
+	RAL_EEPROM_CTL(sc, 0);
+
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_C);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S);
+
+	/* Write start bit (1) */
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D | RAL_EEPROM_C);
+
+	/* Write READ opcode (10) */
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_D | RAL_EEPROM_C);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_C);
+
+	/* Write address (A5-A0 or A7-A0) */
+	n = (RAL_READ(sc, RAL_CSR21) & RAL_CSR21_93C46) ? 5 : 7;
+	for (; n >= 0; n--) {
+		RAL_EEPROM_CTL(sc, RAL_EEPROM_S |
+		    (((addr >> n) & 1) << RAL_EEPROM_SHIFT_D));
+		RAL_EEPROM_CTL(sc, RAL_EEPROM_S |
+		    (((addr >> n) & 1) << RAL_EEPROM_SHIFT_D) | RAL_EEPROM_C);
+	}
+
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S);
+
+	/* Read data Q15-Q0 */
+	val = 0;
+	for (n = 15; n >= 0; n--) {
+		RAL_EEPROM_CTL(sc, RAL_EEPROM_S | RAL_EEPROM_C);
+		tmp = RAL_READ(sc, RAL_CSR21);
+		val |= ((tmp & RAL_EEPROM_Q) >> RAL_EEPROM_SHIFT_Q) << n;
+		RAL_EEPROM_CTL(sc, RAL_EEPROM_S);
+	}
+
+	RAL_EEPROM_CTL(sc, 0);
+
+	/* Clear Chip Select and clock C */
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_S);
+	RAL_EEPROM_CTL(sc, 0);
+	RAL_EEPROM_CTL(sc, RAL_EEPROM_C);
+
+	return letoh16(val);
+}
+
+/*
+ * Some frames have been processed by the hardware cipher engine and are ready
+ * for transmission.
+ */
+void
+ral_encryption_intr(struct ral_softc *sc)
+{
+	struct ral_tx_desc *desc;
+	int hw;
+
+	/* retrieve last descriptor index processed by cipher engine */
+	hw = (RAL_READ(sc, RAL_SECCSR1) - sc->txq.physaddr) / RAL_TX_DESC_SIZE;
+
+	for (; sc->txq.next_encrypt != hw;) {
+		desc = &sc->txq.desc[sc->txq.next_encrypt];
+
+		bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
+		    sc->txq.next_encrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_POSTREAD);
+
+		if ((letoh32(desc->flags) & RAL_TX_BUSY) ||
+		    (letoh32(desc->flags) & RAL_TX_CIPHER_BUSY))
+			break;
+
+		/* for TKIP, swap eiv field to fix a bug in ASIC */
+		if ((letoh32(desc->flags) & RAL_TX_CIPHER_MASK) ==
+		    RAL_TX_CIPHER_TKIP)
+			desc->eiv = swap32(desc->eiv);
+
+		/* mark the frame ready for transmission */
+		desc->flags |= htole32(RAL_TX_BUSY | RAL_TX_VALID);
+
+		bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
+		    sc->txq.next_encrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_PREWRITE);
+
+		DPRINTFN(5, ("encryption done idx=%u\n", sc->txq.next_encrypt));
+
+		sc->txq.next_encrypt =
+		    (sc->txq.next_encrypt + 1) % RAL_TX_RING_COUNT;
+	}
+
+	/* kick Tx */
+	RAL_WRITE(sc, RAL_TXCSR0, RAL_TXCSR0_KICK_TX);
+}
+
+void
+ral_tx_intr(struct ral_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	struct ral_tx_desc *desc;
+	struct ral_tx_data *data;
+
+	for (;;) {
+		desc = &sc->txq.desc[sc->txq.next];
+		data = &sc->txq.data[sc->txq.next];
+
+		bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
+		    sc->txq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_POSTREAD);
+
+		if ((letoh32(desc->flags) & RAL_TX_BUSY) ||
+		    (letoh32(desc->flags) & RAL_TX_CIPHER_BUSY) ||
+		    !(letoh32(desc->flags) & RAL_TX_VALID))
+			break;
+
+		switch (letoh32(desc->flags) & RAL_TX_RESULT_MASK) {
+		case RAL_TX_SUCCESS:
+			DPRINTFN(10, ("data frame sent successfully\n"));
+			ieee80211_rssadapt_raise_rate(ic, &sc->rssadapt,
+			    &data->id);
+			break;
+
+		case RAL_TX_SUCCESS_RETRY:
+			DPRINTFN(2, ("data frame sent after %u retries\n",
+			    (letoh32(desc->flags) >> 5) & 0x7));
+			ieee80211_rssadapt_lower_rate(ic, data->ni,
+			    &sc->rssadapt, &data->id);
+			break;
+
+		case RAL_TX_FAIL_RETRY:
+			DPRINTFN(2, ("sending data frame failed (too much "
+			    "retries)\n"));
+			ieee80211_rssadapt_lower_rate(ic, data->ni,
+			    &sc->rssadapt, &data->id);
+			break;
+
+		case RAL_TX_FAIL_INVALID:
+		case RAL_TX_FAIL_OTHER:
+		default:
+			printf("%s: sending data frame failed 0x%08x\n",
+			    sc->sc_dev.dv_xname, letoh32(desc->flags));
+		}
+
+		bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+		    data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(sc->sc_dmat, data->map);
+		m_freem(data->m);
+		data->m = NULL;
+		if (data->ni == ic->ic_bss)
+			ieee80211_unref_node(&data->ni);
+		else
+			ieee80211_free_node(ic, data->ni);
+		data->ni = NULL;
+
+		/* descriptor is no longer valid */
+		desc->flags &= ~htole32(RAL_TX_VALID);
+
+		bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
+		    sc->txq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_PREWRITE);
+
+		DPRINTFN(5, ("tx done idx=%u\n", sc->txq.next));
+
+		sc->txq.queued--;
+		sc->txq.next = (sc->txq.next + 1) % RAL_TX_RING_COUNT;
+	}
+
+	sc->sc_tx_timer = 0;
+	ifp->if_flags &= ~IFF_OACTIVE;
+	ral_start(ifp);
+}
+
+void
+ral_prio_intr(struct ral_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	struct ral_tx_desc *desc;
+	struct ral_tx_data *data;
+
+	for (;;) {
+		desc = &sc->prioq.desc[sc->prioq.next];
+		data = &sc->prioq.data[sc->prioq.next];
+
+		bus_dmamap_sync(sc->sc_dmat, sc->prioq.map,
+		    sc->prioq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_POSTREAD);
+
+		if ((letoh32(desc->flags) & RAL_TX_BUSY) ||
+		    !(letoh32(desc->flags) & RAL_TX_VALID))
+			break;
+
+		switch (letoh32(desc->flags) & RAL_TX_RESULT_MASK) {
+		case RAL_TX_SUCCESS:
+			DPRINTFN(10, ("mgt frame sent successfully\n"));
+			break;
+
+		case RAL_TX_SUCCESS_RETRY:
+			DPRINTFN(10, ("mgt frame sent after %u retries\n",
+			    (letoh32(desc->flags) >> 5) & 0x7));
+			break;
+
+		case RAL_TX_FAIL_RETRY:
+			DPRINTFN(10, ("sending mgt frame failed (too much "
+			    "retries)\n"));
+			break;
+
+		case RAL_TX_FAIL_INVALID:
+		case RAL_TX_FAIL_OTHER:
+		default:
+			printf("%s: sending mgt frame failed 0x%08x\n",
+			    sc->sc_dev.dv_xname, letoh32(desc->flags));
+		}
+
+		bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+		    data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
+		bus_dmamap_unload(sc->sc_dmat, data->map);
+		m_freem(data->m);
+		data->m = NULL;
+		if (data->ni == ic->ic_bss)
+			ieee80211_unref_node(&data->ni);
+		else
+			ieee80211_free_node(ic, data->ni);
+		data->ni = NULL;
+
+		/* descriptor is no longer valid */
+		desc->flags &= ~htole32(RAL_TX_VALID);
+
+		bus_dmamap_sync(sc->sc_dmat, sc->prioq.map,
+		    sc->prioq.next * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_PREWRITE);
+
+		DPRINTFN(5, ("prio done idx=%u\n", sc->prioq.next));
+
+		sc->prioq.queued--;
+		sc->prioq.next = (sc->prioq.next + 1) % RAL_PRIO_RING_COUNT;
+	}
+
+	sc->sc_tx_timer = 0;
+	ifp->if_flags &= ~IFF_OACTIVE;
+	ral_start(ifp);
+}
+
+/*
+ * Some frames were processed by the hardware cipher engine and are ready for
+ * transmission to the IEEE802.11 layer.
+ */
+void
+ral_decryption_intr(struct ral_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	struct ral_rx_desc *desc;
+	struct ral_rx_data *data;
+	struct ieee80211_frame *wh;
+	struct ieee80211_node *ni;
+	struct mbuf *m;
+	int hw, error;
+
+	/* retrieve last decriptor index processed by cipher engine */
+	hw = (RAL_READ(sc, RAL_SECCSR0) - sc->rxq.physaddr) / RAL_RX_DESC_SIZE;
+
+	for (; sc->rxq.cur_decrypt != hw;) {
+		desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
+		data = &sc->rxq.data[sc->rxq.cur_decrypt];
+
+		bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
+		    sc->rxq.cur_decrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_POSTREAD);
+
+		if ((letoh32(desc->flags) & RAL_RX_BUSY) ||
+		    (letoh32(desc->flags) & RAL_RX_CIPHER_BUSY))
+			break;
+
+		if (data->drop)
+			goto skip;
+
+		if ((letoh32(desc->flags) & RAL_RX_CIPHER_MASK) != 0 &&
+		    (letoh32(desc->flags) & RAL_RX_ICV_ERROR))
+			goto skip;
+
+		bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+		    data->map->dm_mapsize, BUS_DMASYNC_POSTREAD);
+		bus_dmamap_unload(sc->sc_dmat, data->map);
+
+		/* get timestamp (high and low 32 bits) */
+		RAL_READ(sc, RAL_CSR17);
+		RAL_READ(sc, RAL_CSR16);
+
+		/* finalize mbuf */
+		m = data->m;
+		m->m_pkthdr.rcvif = ifp;
+		m->m_pkthdr.len = m->m_len =
+		    (letoh32(desc->flags) >> 16) & 0xfff;
+
+		wh = mtod(m, struct ieee80211_frame *);
+		ni = ieee80211_find_rxnode(ic, wh);
+
+		/* send the frame to the 802.11 layer */
+		ieee80211_input(ifp, m, ni, desc->rssi, 0);
+
+		/* give rssi to the rate adatation algorithm */
+		ieee80211_rssadapt_input(ic, ni, &sc->rssadapt, desc->rssi);
+
+		MGETHDR(data->m, M_DONTWAIT, MT_DATA);
+		if (data->m == NULL) {
+			printf("%s: could not allocate rx mbuf\n",
+			    sc->sc_dev.dv_xname);
+			break;
+		}
+
+		MCLGET(data->m, M_DONTWAIT);
+		if (!(data->m->m_flags & M_EXT)) {
+			printf("%s: could not allocate rx mbuf cluster\n",
+			    sc->sc_dev.dv_xname);
+			m_freem(data->m);
+			data->m = NULL;
+			break;
+		}
+
+		error = bus_dmamap_load(sc->sc_dmat, data->map,
+		    mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT);
+		if (error != 0) {
+			printf("%s: could not load rx buf DMA map\n",
+			    sc->sc_dev.dv_xname);
+			m_freem(data->m);
+			data->m = NULL;
+			break;
+		}
+
+		desc->physaddr = htole32(data->map->dm_segs->ds_addr);
+skip:		desc->flags = htole32(RAL_RX_BUSY);
+
+		bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
+		    sc->rxq.cur_decrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+		    BUS_DMASYNC_PREWRITE);
+
+		DPRINTFN(15, ("decryption done idx=%u\n", sc->rxq.cur_decrypt));
+
+		sc->rxq.cur_decrypt =
+		    (sc->rxq.cur_decrypt + 1) % RAL_RX_RING_COUNT;
+	}
+}
+
+/*
+ * Some frames were received. Pass them to the hardware cipher engine before
+ * sending them to the 802.11 layer.
+ */
+void
+ral_rx_intr(struct ral_softc *sc)
+{
+	struct ral_rx_desc *desc;
+	struct ral_rx_data *data;
+
+	for (;;) {
+		desc = &sc->rxq.desc[sc->rxq.cur];
+		data = &sc->rxq.data[sc->rxq.cur];
+
+		bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
+		    sc->rxq.cur * RAL_RX_DESC_SIZE, RAL_RX_DESC_SIZE,
+		    BUS_DMASYNC_POSTREAD);
+
+		if ((letoh32(desc->flags) & RAL_RX_BUSY) ||
+		    (letoh32(desc->flags) & RAL_RX_CIPHER_BUSY))
+			break;
+
+		data->drop = 0;
+
+		if ((letoh32(desc->flags) & RAL_RX_PHY_ERROR) ||
+		    (letoh32(desc->flags) & RAL_RX_CRC_ERROR)) {
+			/*
+			 * this should not happen since we did not request
+			 * to receive those frames when we filled RXCSR0
+			 */
+			DPRINTFN(5, ("PHY or CRC error flags 0x%08x\n",
+			    letoh32(desc->flags)));
+			data->drop = 1;
+		}
+
+		if (((letoh32(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
+			DPRINTFN(5, ("bad length\n"));
+			data->drop = 1;
+		}
+
+		/* mark the frame for decryption */
+		desc->flags |= htole32(RAL_RX_CIPHER_BUSY);
+
+		bus_dmamap_sync(sc->sc_dmat, sc->rxq.map,
+		    sc->rxq.cur * RAL_RX_DESC_SIZE, RAL_RX_DESC_SIZE,
+		    BUS_DMASYNC_PREWRITE);
+
+		DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur));
+
+		sc->rxq.cur = (sc->rxq.cur + 1) % RAL_RX_RING_COUNT;
+	}
+
+	/* kick decrypt */
+	RAL_WRITE(sc, RAL_SECCSR0, RAL_SECCSR0_KICK);
+}
+
+/*
+ * This function is called periodically in IBSS mode when a new beacon must be
+ * sent out.
+ */
+void
+ral_beacon_expire(struct ral_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ral_tx_data *data;
+
+	if (ic->ic_opmode != IEEE80211_M_IBSS)
+		return;
+
+	data = &sc->bcnq.data[sc->bcnq.next];
+
+	bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
+	    BUS_DMASYNC_POSTWRITE);
+	bus_dmamap_unload(sc->sc_dmat, data->map);
+#if 0
+	ieee80211_beacon_update(ic, data->ni, &sc->sc_bo, data->m, 1);
+	ral_tx_bcn(sc, data->m, data->ni);
+#endif
+	DPRINTFN(15, ("beacon expired\n"));
+
+	sc->bcnq.next = (sc->bcnq.next + 1) % RAL_BEACON_RING_COUNT;
+}
+
+void
+ral_wakeup_expire(struct ral_softc *sc)
+{
+	DPRINTFN(10, ("wakeup expired\n"));
+}
+
+int
+ral_intr(void *arg)
+{
+	struct ral_softc *sc = arg;
+	uint32_t r;
+
+	/* disable interrupts */
+	RAL_WRITE(sc, RAL_CSR8, 0xffffffff);
+
+	r = RAL_READ(sc, RAL_CSR7);
+	RAL_WRITE(sc, RAL_CSR7, r);
+
+	if (r & RAL_CSR7_BEACON_EXPIRE)
+		ral_beacon_expire(sc);
+
+	if (r & RAL_CSR7_WAKEUP_EXPIRE)
+		ral_wakeup_expire(sc);
+
+	if (r & RAL_CSR7_ENCRYPTION_DONE)
+		ral_encryption_intr(sc);
+
+	if (r & RAL_CSR7_TX_DONE)
+		ral_tx_intr(sc);
+
+	if (r & RAL_CSR7_PRIO_DONE)
+		ral_prio_intr(sc);
+
+	if (r & RAL_CSR7_DECRYPTION_DONE)
+		ral_decryption_intr(sc);
+
+	if (r & RAL_CSR7_RX_DONE)
+		ral_rx_intr(sc);
+
+	/* re-enable interrupts */
+	RAL_WRITE(sc, RAL_CSR8, RAL_CSR8_MASK);
+	
+	return 1;
+}
+
+uint8_t
+ral_plcp_signal(int rate)
+{
+	switch (rate) {
+	/* CCK rates (returned values are device-dependent) */
+	case 2:		return 0x0;
+	case 4:		return 0x1;
+	case 11:	return 0x2;
+	case 22:	return 0x3;
+
+	/* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
+	case 12:	return 0xb;
+	case 18:	return 0xf;
+	case 24:	return 0xa;
+	case 36:	return 0xe;
+	case 48:	return 0x9;
+	case 72:	return 0xd;
+	case 96:	return 0x8;
+	case 108:	return 0xc;
+
+	/* unsupported rates (should not get there) */
+	default:	return 0xff;
+	}
+}
+
+#if 0
+#define RAL_RATE_IS_OFDM(rate) (((rate) % 3) == 0)
+#else
+/* quickly determine if a rate is CCK or OFDM */
+#define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22)
+#endif
+
+#if 0
+int
+ral_tx_bcn(struct ral_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ral_tx_desc *desc;
+	struct ral_tx_data *data;
+	struct ieee80211_frame *wh;
+	struct ieee80211_duration d0, dn;
+	int npkt, error;
+
+	desc = &sc->bcnq.desc[sc->bcnq.cur];
+	data = &sc->bcnq.data[sc->bcnq.cur];
+
+	wh = mtod(m0, struct ieee80211_frame *);
+
+	/* XXX beacons are always sent at 2Mbps */
+	error = ieee80211_compute_duration(wh, m0->m_pkthdr.len, ic->ic_flags,
+	    ic->ic_fragthreshold, 4, &d0, &dn, &npkt,
+	    ifp->if_flags & IFF_DEBUG);
+	if (error != 0) {
+		printf("%s: could not compute duration\n", sc->sc_dev.dv_xname);
+		m_freem(m0);
+		return error;
+	}
+
+	error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
+	    BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not map mbuf (error %d)\n",
+		    sc->sc_dev.dv_xname, error);
+		m_freem(m0);
+		return error;
+	}
+
+	data->m = m0;
+	data->ni = ni;
+
+	desc->physaddr = htole32(data->map->dm_segs->ds_addr);
+
+	desc->flags = htole32(RAL_TX_VALID | RAL_TX_BUSY |
+	    RAL_TX_INSERT_TIMESTAMP | RAL_TX_IFS_NEW_BACKOFF);
+	desc->flags |= htole32(m0->m_pkthdr.len) << 16;
+
+	desc->wme = htole32(
+	    8 << RAL_WME_CWMAX_BITS_SHIFT |
+	    3 << RAL_WME_CWMIN_BITS_SHIFT |
+	    2 << RAL_WME_AIFSN_BITS_SHIFT);
+
+	desc->plcp_length = htole16(d0.d_plcp_len);
+	desc->plcp_service = 4;
+	desc->plcp_signal = ral_plcp_signal(4);
+	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+		desc->plcp_signal |= 0x8;
+
+	bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
+	    BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(sc->sc_dmat, sc->bcnq.map,
+	    sc->bcnq.cur * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+	    BUS_DMASYNC_PREWRITE);
+
+	sc->bcnq.cur = (sc->bcnq.cur + 1) % RAL_BEACON_RING_COUNT;
+
+	return 0;
+}
+#endif
+
+int
+ral_tx_mgt(struct ral_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	struct ral_tx_desc *desc;
+	struct ral_tx_data *data;
+	struct ieee80211_frame *wh;
+	struct ieee80211_duration d0, dn;
+	int npkt, error;
+
+	desc = &sc->prioq.desc[sc->prioq.cur];
+	data = &sc->prioq.data[sc->prioq.cur];
+
+	wh = mtod(m0, struct ieee80211_frame *);
+
+	/* XXX management frames are always sent at 2Mbps */
+	error = ieee80211_compute_duration(wh, m0->m_pkthdr.len, ic->ic_flags,
+	    ic->ic_fragthreshold, 4, &d0, &dn, &npkt,
+	    ifp->if_flags & IFF_DEBUG);
+	if (error != 0) {
+		printf("%s: could not compute duration\n", sc->sc_dev.dv_xname);
+		m_freem(m0);
+		return error;
+	}
+
+	error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
+	    BUS_DMA_NOWAIT);
+	if (error != 0) {
+		printf("%s: could not map mbuf (error %d)\n",
+		    sc->sc_dev.dv_xname, error);
+		m_freem(m0);
+		return error;
+	}
+
+	data->m = m0;
+	data->ni = ni;
+
+	desc->physaddr = htole32(data->map->dm_segs->ds_addr);
+
+	desc->flags = htole32(RAL_TX_VALID | RAL_TX_BUSY);
+	desc->flags |= htole32(m0->m_pkthdr.len) << 16;
+
+	if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
+		desc->flags |= htole32(RAL_TX_NEED_ACK);
+
+		*(uint16_t *)wh->i_dur = htole16(d0.d_data_dur);
+
+		if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
+		    IEEE80211_FC0_SUBTYPE_PROBE_RESP)
+			desc->flags |= htole32(RAL_TX_INSERT_TIMESTAMP);
+	}
+
+	desc->wme = htole32(
+	    8 << RAL_WME_CWMAX_BITS_SHIFT |
+	    3 << RAL_WME_CWMIN_BITS_SHIFT |
+	    2 << RAL_WME_AIFSN_BITS_SHIFT);
+
+	desc->plcp_length = htole16(d0.d_plcp_len);
+	desc->plcp_service = 4;
+	desc->plcp_signal = ral_plcp_signal(4);
+	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+		desc->plcp_signal |= 0x8;
+
+	bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
+	    BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(sc->sc_dmat, sc->prioq.map,
+	    sc->prioq.cur * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+	    BUS_DMASYNC_PREWRITE);
+
+	DPRINTFN(10, ("sending mgt frame len=%u idx=%u duration=%u plcp=%u\n",
+	    m0->m_pkthdr.len, sc->prioq.cur, d0.d_data_dur, d0.d_plcp_len));
+
+	/* kick prio */
+	sc->prioq.queued++;
+	sc->prioq.cur = (sc->prioq.cur + 1) % RAL_PRIO_RING_COUNT;
+	RAL_WRITE(sc, RAL_TXCSR0, RAL_TXCSR0_KICK_PRIO);
+
+	return 0;
+}
+
+int
+ral_tx_data(struct ral_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct ifnet *ifp = &ic->ic_if;
+	struct ral_tx_desc *desc;
+	struct ral_tx_data *data;
+	struct ieee80211_frame *wh;
+	struct ieee80211_frame_rts *rts;
+	struct ieee80211_duration d0, dn;
+	struct mbuf *m, *mnew;
+	int npkt, error;
+
+	wh = mtod(m0, struct ieee80211_frame *);
+
+	ni->ni_txrate = ieee80211_rssadapt_choose(&sc->rssadapt, &ni->ni_rates,
+	    wh, m0->m_pkthdr.len, ic->ic_fixed_rate, NULL, 0);
+
+	error = ieee80211_compute_duration(wh, m0->m_pkthdr.len, ic->ic_flags,
+	    ic->ic_fragthreshold, ni->ni_rates.rs_rates[ni->ni_txrate], &d0,
+	    &dn, &npkt, ifp->if_flags & IFF_DEBUG);
+	if (error != 0) {
+		printf("%s: could not compute duration\n", sc->sc_dev.dv_xname);
+		m_freem(m0);
+		return error;
+	}
+
+	if (m0->m_pkthdr.len > ic->ic_rtsthreshold) {
+		desc = &sc->txq.desc[sc->txq.cur_encrypt];
+		data = &sc->txq.data[sc->txq.cur_encrypt];
+
+		/* switch to long retry */
+		/* switch to frame gap SIFS */
+
+		MGETHDR(m, M_DONTWAIT, MT_DATA);
+		if (m == NULL) {
+			printf("%s: could not allocate RTS/CTS frame\n",
+			    sc->sc_dev.dv_xname);
+			return ENOMEM;
+		}
+
+		rts = mtod(m, struct ieee80211_frame_rts *);
+		rts->i_fc[0] = IEEE80211_FC0_TYPE_CTL |
+		    IEEE80211_FC0_SUBTYPE_RTS;
+		*(uint16_t *)rts->i_dur = htole16(d0.d_rts_dur);
+		memcpy(rts->i_ra, wh->i_addr1, IEEE80211_ADDR_LEN);
+		memcpy(rts->i_ta, wh->i_addr2, IEEE80211_ADDR_LEN);
+
+		error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m,
+		    BUS_DMA_NOWAIT);
+		if (error != 0) {
+			printf("%s: could not map mbuf (error %d)\n",
+			    sc->sc_dev.dv_xname, error);
+			m_freem(m);
+			m_freem(m0);
+			return error;
+		}
+
+		data->m = m;
+		data->ni = ni;
+
+		bus_dmamap_sync(sc->sc_dmat, data->map, 0,
+		    data->map->dm_mapsize, BUS_DMASYNC_PREWRITE);
+
+		desc->flags = htole32(RAL_TX_VALID | RAL_TX_BUSY);
+
+		desc->physaddr = htole32(data->map->dm_segs->ds_addr);
+
+		sc->txq.queued++;
+		sc->txq.cur_encrypt =
+		    (sc->txq.cur_encrypt + 1) % RAL_TX_RING_COUNT;
+	}
+
+	data = &sc->txq.data[sc->txq.cur_encrypt];
+	desc = &sc->txq.desc[sc->txq.cur_encrypt];
+
+	error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
+	    BUS_DMA_NOWAIT);
+	if (error != 0 && error != EFBIG) {
+		printf("%s: could not map mbuf (error %d)\n",
+		    sc->sc_dev.dv_xname, error);
+		m_freem(m0);
+		return error;
+	}
+	if (error != 0) {
+		/* too many fragments, linearize */
+
+		MGETHDR(mnew, M_DONTWAIT, MT_DATA);
+		if (mnew == NULL) {
+			m_freem(m0);
+			return ENOMEM;
+		}
+
+		M_DUP_PKTHDR(mnew, m0);
+		MCLGET(mnew, M_DONTWAIT);
+		if (!(mnew->m_flags & M_EXT)) {
+			m_freem(m0);
+			m_freem(mnew);
+			return ENOMEM;
+		}
+
+		m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, caddr_t));
+		m_freem(m0);
+		mnew->m_len = mnew->m_pkthdr.len;
+		m0 = mnew;
+
+		error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0,
+		    BUS_DMA_NOWAIT);
+		if (error != 0) {
+			printf("%s: could not map mbuf (error %d)\n",
+			    sc->sc_dev.dv_xname, error);
+			m_freem(m0);
+			return error;
+		}
+	}
+
+	data->m = m0;
+	data->ni = ni;
+
+	/* remember link conditions for rate adaptation algorithm */
+	data->id.id_len = m0->m_pkthdr.len;
+	data->id.id_rateidx = ni->ni_txrate;
+	data->id.id_node = ni;
+	data->id.id_rssi = ni->ni_rssi;
+
+	desc->physaddr = htole32(data->map->dm_segs->ds_addr);
+
+	desc->flags = htole32(RAL_TX_CIPHER_BUSY);
+	desc->flags |= htole32(m0->m_pkthdr.len) << 16;
+
+	if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
+		desc->flags |= htole32(RAL_TX_NEED_ACK);
+
+		*(uint16_t *)wh->i_dur = htole16(d0.d_data_dur);
+	}
+
+	desc->wme = htole32(
+	    8 << RAL_WME_CWMAX_BITS_SHIFT |
+	    3 << RAL_WME_CWMIN_BITS_SHIFT |
+	    2 << RAL_WME_AIFSN_BITS_SHIFT);
+
+	desc->plcp_length = htole16(d0.d_plcp_len);
+	desc->plcp_service = 4;
+	if (d0.d_residue != 0)
+		desc->plcp_service |= RAL_PLCP_LENGEXT;
+	desc->plcp_signal =
+	    ral_plcp_signal(ni->ni_rates.rs_rates[ni->ni_txrate]);
+	if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
+		desc->plcp_signal |= 0x8;
+
+	bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize,
+	    BUS_DMASYNC_PREWRITE);
+	bus_dmamap_sync(sc->sc_dmat, sc->txq.map,
+	    sc->txq.cur_encrypt * RAL_TX_DESC_SIZE, RAL_TX_DESC_SIZE,
+	    BUS_DMASYNC_PREWRITE);
+
+	DPRINTFN(10, ("sending data frame len=%u idx=%u phys=%x plcp=%u "
+	    "residue=%u\n", m0->m_pkthdr.len, sc->txq.cur_encrypt,
+	    d0.d_data_dur, d0.d_plcp_len, d0.d_residue));
+
+	/* kick encrypt */
+	sc->txq.queued++;
+	sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RAL_TX_RING_COUNT;
+	RAL_WRITE(sc, RAL_SECCSR1, RAL_SECCSR1_KICK);
+
+	return 0;
+}
+
+void
+ral_start(struct ifnet *ifp)
+{
+	struct ral_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	struct mbuf *m0;
+	struct ieee80211_node *ni;
+
+	for (;;) {
+		IF_POLL(&ic->ic_mgtq, m0);
+		if (m0 != NULL) {
+			if (sc->prioq.queued >= RAL_PRIO_RING_COUNT) {
+				ifp->if_flags |= IFF_OACTIVE;
+				break;
+			}
+			IF_DEQUEUE(&ic->ic_mgtq, m0);
+
+			ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
+			m0->m_pkthdr.rcvif = NULL;
+#if NBPFILTER > 0
+			if (ic->ic_rawbpf != NULL)
+				bpf_mtap(ic->ic_rawbpf, m0);
+#endif
+			if (ral_tx_mgt(sc, m0, ni) != 0)
+				break;
+
+		} else {
+			if (ic->ic_state != IEEE80211_S_RUN)
+				break;
+			IFQ_DEQUEUE(&ifp->if_snd, m0);
+			if (m0 == NULL)
+				break;
+			if (sc->txq.queued >= RAL_TX_RING_COUNT) {
+				IF_PREPEND(&ifp->if_snd, m0);
+				ifp->if_flags |= IFF_OACTIVE;
+				break;
+			}
+#if NBPFILTER > 0
+			if (ifp->if_bpf != NULL)
+				bpf_mtap(ifp->if_bpf, m0);
+#endif
+			m0 = ieee80211_encap(ifp, m0, &ni);
+			if (m0 == NULL)
+				continue;
+#if NBPFILTER > 0
+			if (ic->ic_rawbpf != NULL)
+				bpf_mtap(ic->ic_rawbpf, m0);
+#endif
+			if (ral_tx_data(sc, m0, ni) != 0) {
+				if (ni != NULL && ni != ic->ic_bss)
+					ieee80211_free_node(ic, ni);
+				break;
+			}
+		}
+
+		sc->sc_tx_timer = 5;
+		ifp->if_timer = 1;
+	}
+}
+
+void
+ral_watchdog(struct ifnet *ifp)
+{
+	struct ral_softc *sc = ifp->if_softc;
+
+	ifp->if_timer = 0;
+
+	if (sc->sc_tx_timer > 0) {
+		if (--sc->sc_tx_timer == 0) {
+			printf("%s: device timeout\n", sc->sc_dev.dv_xname);
+			return;
+		}
+		ifp->if_timer = 1;
+	}
+
+	ieee80211_watchdog(ifp);
+}
+
+int
+ral_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+	int s, error = 0;
+
+	s = splnet();
+	
+	switch (cmd) {
+	case SIOCSIFFLAGS:
+		if (ifp->if_flags & IFF_UP) {
+			if (!(ifp->if_flags & IFF_RUNNING))
+				ral_init(ifp);
+		} else {
+			if (ifp->if_flags & IFF_RUNNING)
+				ral_stop(ifp, 1);
+		}
+		break;
+
+	default:
+		error = ieee80211_ioctl(ifp, cmd, data);
+	}
+
+	if (error == ENETRESET && cmd != SIOCADDMULTI) {
+		if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
+		    (IFF_UP | IFF_RUNNING))
+			ral_init(ifp);
+		error = 0;
+	}
+
+	splx(s);
+
+	return error;
+}
+
+void
+ral_bbp_write(struct ral_softc *sc, uint8_t reg, uint8_t val)
+{
+	uint32_t tmp;
+	int ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RAL_BBPCSR) & RAL_BBP_BUSY))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		printf("%s: could not write to BBP\n", sc->sc_dev.dv_xname);
+		return;
+	}
+
+	tmp = RAL_BBP_WRITE | RAL_BBP_BUSY | reg << 8 | val;
+	RAL_WRITE(sc, RAL_BBPCSR, tmp);
+
+	DPRINTFN(15, ("BBP R%u <- 0x%02x\n", reg, val));
+}
+
+uint8_t
+ral_bbp_read(struct ral_softc *sc, uint8_t reg)
+{
+	uint32_t val;
+	int ntries;
+
+	val = RAL_BBP_BUSY | reg << 8;
+	RAL_WRITE(sc, RAL_BBPCSR, val);
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		val = RAL_READ(sc, RAL_BBPCSR);
+		if (!(val & RAL_BBP_BUSY))
+			return val & 0xff;
+		DELAY(1);
+	}
+
+	printf("%s: could not read from BBP\n", sc->sc_dev.dv_xname);
+	return 0;
+}
+
+void
+ral_rf_write(struct ral_softc *sc, uint8_t reg, uint32_t val)
+{
+	uint32_t tmp;
+	int ntries;
+
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (!(RAL_READ(sc, RAL_RFCSR) & RAL_RF_BUSY))
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		printf("%s: could not write to RF\n", sc->sc_dev.dv_xname);
+		return;
+	}
+
+	tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xfffff) << 2 | (reg & 0x3);
+	RAL_WRITE(sc, RAL_RFCSR, tmp);
+
+	/* remember last written value in sc */
+	sc->rf_regs[reg] = val;
+
+	DPRINTFN(15, ("RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff));
+}
+
+void
+ral_set_chan(struct ral_softc *sc, struct ieee80211_channel *c)
+{
+#define N(a)	(sizeof (a) / sizeof ((a)[0]))
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint8_t power, tmp;
+	u_int i, chan;
+
+	chan = ieee80211_chan2ieee(ic, c);
+	if (chan == 0 || chan == IEEE80211_CHAN_ANY)
+		return;
+
+	if (IEEE80211_IS_CHAN_2GHZ(c))
+		power = min(sc->txpow[chan - 1], 31);
+	else
+		power = 31;
+
+	switch (sc->rf_rev) {
+	case RAL_RF_2522:
+		ral_rf_write(sc, RAL_RF1, 0x00814);
+		ral_rf_write(sc, RAL_RF2, ral_rf2522_r2[chan - 1]);
+		ral_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
+		break;
+
+	case RAL_RF_2523:
+		ral_rf_write(sc, RAL_RF1, 0x08804);
+		ral_rf_write(sc, RAL_RF2, ral_rf2523_r2[chan - 1]);
+		ral_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
+		ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
+		break;
+
+	case RAL_RF_2524:
+		ral_rf_write(sc, RAL_RF1, 0x0c808);
+		ral_rf_write(sc, RAL_RF2, ral_rf2524_r2[chan - 1]);
+		ral_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
+		ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
+		break;
+
+	case RAL_RF_2525:
+		ral_rf_write(sc, RAL_RF1, 0x08808);
+		ral_rf_write(sc, RAL_RF2, ral_rf2525_hi_r2[chan - 1]);
+		ral_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
+		ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
+
+		ral_rf_write(sc, RAL_RF1, 0x08808);
+		ral_rf_write(sc, RAL_RF2, ral_rf2525_r2[chan - 1]);
+		ral_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
+		ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
+		break;
+
+	case RAL_RF_2525E:
+		ral_rf_write(sc, RAL_RF1, 0x08808);
+		ral_rf_write(sc, RAL_RF2, ral_rf2525e_r2[chan - 1]);
+		ral_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
+		ral_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
+		break;
+
+	/* dual-band RF */
+	case RAL_RF_5222:
+		for (i = 0; i < N(ral_rf5222); i++)
+			if (ral_rf5222[i].chan == chan)
+				break;
+
+		if (i < N(ral_rf5222)) {
+			ral_rf_write(sc, RAL_RF1, ral_rf5222[i].r1);
+			ral_rf_write(sc, RAL_RF2, ral_rf5222[i].r2);
+			ral_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
+			ral_rf_write(sc, RAL_RF4, ral_rf5222[i].r4);
+		}
+		break;
+	}
+
+	if (sc->sc_ic.ic_state != IEEE80211_S_SCAN) {
+		/* set Japan filter bit for channel 14 */
+		tmp = ral_bbp_read(sc, 70);
+
+		tmp &= ~RAL_JAPAN_FILTER;
+		if (chan == 14)
+			tmp |= RAL_JAPAN_FILTER;
+
+		ral_bbp_write(sc, 70, tmp);
+
+		DELAY(1000); /* RF needs a 1ms delay here */
+		ral_disable_rf_tune(sc);
+
+		/* clear CRC errors */
+		RAL_READ(sc, RAL_CNT0);
+	}
+#undef N
+}
+
+/*
+ * Disable RF auto-tuning.
+ */
+void
+ral_disable_rf_tune(struct ral_softc *sc)
+{
+	uint32_t tmp;
+
+	if (sc->rf_rev != RAL_RF_2523) {
+		tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
+		ral_rf_write(sc, RAL_RF1, tmp);
+	}
+
+	tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
+	ral_rf_write(sc, RAL_RF3, tmp);
+}
+
+/* cf IEEE80211-1999 pp123 */
+void
+ral_enable_tsf_sync(struct ral_softc *sc)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint32_t tmp;
+
+	/* first, disable TSF synchronization */
+	RAL_WRITE(sc, RAL_CSR14, 0);
+
+	/* set beacon interval and CfpMaxDuration in 1/16TU */
+	tmp = 16 * ic->ic_bss->ni_intval;
+	RAL_WRITE(sc, RAL_CSR12, tmp);
+
+/* voir ni->ni_timoff ou on doit trouver le cfp et le atim */
+
+	/* set CFP Period to 0 */
+	RAL_WRITE(sc, RAL_CSR13, 0);
+
+	/* set bcncsr1 (CWMin + preload) */
+	tmp = 5 << 16 | (IEEE80211_DUR_DS_LONG_PREAMBLE + 240);
+	RAL_WRITE(sc, RAL_BCNCSR1, tmp);
+
+	if (ic->ic_opmode == IEEE80211_M_IBSS)
+		RAL_WRITE(sc, RAL_CSR14, RAL_CSR14_TSF_SYNC_IBSS |
+		    RAL_CSR14_TSF_AUTOCOUNT | RAL_CSR14_BCN_RELOAD |
+		    RAL_CSR14_GENERATE_BEACON);
+	else
+		RAL_WRITE(sc, RAL_CSR14, RAL_CSR14_TSF_SYNC_BSS |
+		    RAL_CSR14_TSF_AUTOCOUNT | RAL_CSR14_BCN_RELOAD);
+}
+
+void
+ral_update_plcp(struct ral_softc *sc)
+{
+	/* no short preamble for 1Mbps */
+	RAL_WRITE(sc, RAL_ARCSR2, 0x00700400);
+
+	if (!(sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE)) {
+		/* values taken from the reference driver */
+		RAL_WRITE(sc, RAL_ARCSR3, 0x00380401);
+		RAL_WRITE(sc, RAL_ARCSR4, 0x00150402);
+		RAL_WRITE(sc, RAL_ARCSR5, 0x000b8403);
+	} else {
+		/* same values as above or'ed 0x8 */
+		RAL_WRITE(sc, RAL_ARCSR3, 0x00380409);
+		RAL_WRITE(sc, RAL_ARCSR4, 0x0015040a);
+		RAL_WRITE(sc, RAL_ARCSR5, 0x000b840b);
+	}
+}
+
+void
+ral_update_led(struct ral_softc *sc, int led1, int led2)
+{
+	uint32_t tmp;
+
+	/* set ON period to 70ms and OFF period to 30ms */
+	tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
+	RAL_WRITE(sc, RAL_LEDCSR, tmp);
+}
+
+void
+ral_set_bssid(struct ral_softc *sc, uint8_t *bssid)
+{
+	uint32_t tmp;
+
+	tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
+	RAL_WRITE(sc, RAL_CSR5, tmp);
+
+	tmp = bssid[4] | bssid[5] << 8;
+	RAL_WRITE(sc, RAL_CSR6, tmp);
+
+	DPRINTFN(10, ("setting BSSID to %s\n", ether_sprintf(bssid)));
+}
+
+void
+ral_set_macaddr(struct ral_softc *sc, uint8_t *addr)
+{
+	uint32_t tmp;
+
+	tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
+	RAL_WRITE(sc, RAL_CSR3, tmp);
+
+	tmp = addr[4] | addr[5] << 8;
+	RAL_WRITE(sc, RAL_CSR4, tmp);
+
+	DPRINTFN(10, ("setting MAC address to %s\n", ether_sprintf(addr)));
+}
+
+int
+ral_read_eeprom(struct ral_softc *sc)
+{
+	uint16_t val;
+	const char *rf;
+	int i;
+
+	val = ral_eeprom_read(sc, RAL_EEPROM_VERSION);
+	sc->eeprom_rev = val >> 8;
+
+	if (sc->eeprom_rev != 1) {
+		printf("%s: unknown EEPROM rev. 0x%x\n", sc->sc_dev.dv_xname,
+		    sc->eeprom_rev);
+		return EIO;
+	}
+
+	val = ral_eeprom_read(sc, RAL_EEPROM_ANTENNA);
+	sc->rf_rev = (val >> 11) & 0x1f;
+	sc->led_mode = (val >> 6) & 0x7;
+	sc->hw_radio = (val >> 10) & 0x1;
+	sc->rx_ant = (val >> 4) & 0x3;
+	sc->tx_ant = (val >> 2) & 0x3;
+	sc->nb_ant = val & 0x3;
+/*	DPRINTFN(10, ("RF rev. 0x%02x, Tx Ant %u, Rx Ant %u, Nb Ant %u, "
+	    "Led Mode %u, HW radio %s\n",
+	    sc->rf_rev, sc->tx_ant, sc->rx_ant, sc->nb_ant, sc->led_mode,
+	    sc->hw_radio ? "yes" : "no"));*/
+
+	switch (sc->rf_rev) {
+	case RAL_RF_2522:  rf = "RT2522";  break;
+	case RAL_RF_2523:  rf = "RT2523";  break;
+	case RAL_RF_2524:  rf = "RT2524";  break;
+	case RAL_RF_2525:  rf = "RT2525";  break;
+	case RAL_RF_2525E: rf = "RT2525e"; break;
+	case RAL_RF_5222:  rf = "RT5222";  break;
+	default:	   rf = "unknown";
+	}
+
+	printf("%s: MAC/BBP RT2560 (rev 0x%02x), RF %s\n", sc->sc_dev.dv_xname,
+	    sc->asic_rev, rf);
+
+	val = ral_eeprom_read(sc, RAL_EEPROM_CONFIG);
+	if (val == 0xffff)
+		val = 0;
+
+	sc->bbp_tune = !((val >> 1) & 0x1);
+
+	/* read default values for BBP registers */
+	for (i = 0; i < 16; i++) {
+		val = ral_eeprom_read(sc, RAL_EEPROM_BBP_BASE + i);
+		sc->bbp_prom[i].reg = val >> 8;
+		sc->bbp_prom[i].val = val & 0xff;
+	}
+
+	/* read Tx power for all b/g channels */
+	for (i = 0; i < 14 / 2; i++) {
+		val = ral_eeprom_read(sc, RAL_EEPROM_TXPOWER_BASE + i);
+		sc->txpow[i * 2] = val >> 8;
+		sc->txpow[i * 2 + 1] = val & 0xff;
+	}
+
+	return 0;
+}
+
+int
+ral_bbp_init(struct ral_softc *sc)
+{
+#define N(a)	(sizeof (a) / sizeof ((a)[0]))
+	int i, ntries;
+
+	/* wait for BBP to be ready */
+	for (ntries = 0; ntries < 100; ntries++) {
+		if (ral_bbp_read(sc, RAL_BBP_VERSION) != 0)
+			break;
+		DELAY(1);
+	}
+	if (ntries == 100) {
+		printf("%s: timeout waiting for BBP\n", sc->sc_dev.dv_xname);
+		return EIO;
+	}
+
+	/* initialize BBP registers to default values */
+	for (i = 0; i < N(ral_def_bbp); i++)
+		ral_bbp_write(sc, ral_def_bbp[i].reg, ral_def_bbp[i].val);
+
+	/* initialize BBP registers to values stored in EEPROM */
+	for (i = 0; i < 16; i++) {
+		if (sc->bbp_prom[i].reg == 0xff)
+			continue;
+		ral_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
+	}
+
+	return 0;
+#undef N
+}
+
+int
+ral_init(struct ifnet *ifp)
+{
+#define N(a)	(sizeof (a) / sizeof ((a)[0]))
+	struct ral_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint32_t tmp;
+	int i;
+
+	/* for CardBus, power on the socket */
+	if (sc->sc_enable != NULL)
+		(*sc->sc_enable)(sc);
+
+	ral_stop(ifp, 0);
+
+	/* setup tx rings */
+	tmp = RAL_PRIO_RING_COUNT << 24 |
+	      RAL_ATIM_RING_COUNT << 16 |
+	      RAL_TX_RING_COUNT   <<  8 |
+	      RAL_TX_DESC_SIZE;
+	RAL_WRITE(sc, RAL_TXCSR2, tmp);
+	RAL_WRITE(sc, RAL_TXCSR3, sc->txq.physaddr);
+	RAL_WRITE(sc, RAL_TXCSR4, sc->atimq.physaddr);
+	RAL_WRITE(sc, RAL_TXCSR5, sc->prioq.physaddr);
+	RAL_WRITE(sc, RAL_TXCSR6, sc->bcnq.physaddr);
+
+	/* setup rx ring */
+	tmp = RAL_RX_RING_COUNT << 8 | RAL_RX_DESC_SIZE;
+	RAL_WRITE(sc, RAL_RXCSR1, tmp);
+	RAL_WRITE(sc, RAL_RXCSR2, sc->rxq.physaddr);
+
+	/* initialize MAC registers to default values */
+	for (i = 0; i < N(ral_def_mac); i++)
+		RAL_WRITE(sc, ral_def_mac[i].reg, ral_def_mac[i].val);
+
+	/* set basic rates mask */
+	RAL_WRITE(sc, RAL_ARCSR1, 0x15f);
+
+	IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl));
+	ral_set_macaddr(sc, ic->ic_myaddr);
+
+	ral_update_plcp(sc);
+	ral_update_led(sc, 0, 0);
+
+	/* set soft reset and host ready */
+	RAL_WRITE(sc, RAL_CSR1, RAL_CSR1_SOFT_RESET);
+	RAL_WRITE(sc, RAL_CSR1, RAL_CSR1_HOST_READY);
+
+	if (ral_bbp_init(sc) != 0) {
+		ral_stop(ifp, 1);
+		return 1;
+	}
+
+	/* set default BSS channel */
+	ic->ic_bss->ni_chan = &ic->ic_channels[1];
+	ral_set_chan(sc, ic->ic_bss->ni_chan);
+
+	/* kick Rx */
+	if (ic->ic_opmode != IEEE80211_M_MONITOR)
+		RAL_WRITE(sc, RAL_RXCSR0,
+		    RAL_RXCSR0_DROP_CRC | RAL_RXCSR0_DROP_PHY |
+		    RAL_RXCSR0_DROP_CTL | RAL_RXCSR0_DROP_NOT_TO_ME |
+		    RAL_RXCSR0_DROP_TODS | RAL_RXCSR0_DROP_BAD_VERSION);
+	else
+		RAL_WRITE(sc, RAL_RXCSR0, 0);
+
+	/* clear old FCS and Rx FIFO errors */
+	RAL_READ(sc, RAL_CNT0);
+	RAL_READ(sc, RAL_CNT4);
+
+	/* clear any pending interrupts */
+	RAL_WRITE(sc, RAL_CSR7, 0xffffffff);
+
+	/* enable interrupts */
+	RAL_WRITE(sc, RAL_CSR8, RAL_CSR8_MASK);
+
+	ifp->if_flags &= ~IFF_OACTIVE;
+	ifp->if_flags |= IFF_RUNNING;
+
+	if (ic->ic_opmode != IEEE80211_M_MONITOR)
+		ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
+
+	return 0;
+#undef N
+}
+
+void
+ral_stop(struct ifnet *ifp, int disable)
+{
+	struct ral_softc *sc = ifp->if_softc;
+	struct ieee80211com *ic = &sc->sc_ic;
+
+	ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
+
+	/* abort Tx */
+	RAL_WRITE(sc, RAL_TXCSR0, RAL_TXCSR0_ABORT);
+
+	/* disable Rx */
+	RAL_WRITE(sc, RAL_RXCSR0, RAL_RXCSR0_DISABLE);
+
+	/* reset ASIC (and thus, BBP) */
+	RAL_WRITE(sc, RAL_CSR1, RAL_CSR1_SOFT_RESET);
+	RAL_WRITE(sc, RAL_CSR1, 0);
+
+	/* disable interrupts */
+	RAL_WRITE(sc, RAL_CSR8, 0xffffffff);
+
+	/* reset Tx and Rx rings */
+	ral_reset_tx_ring(sc, &sc->txq);
+	ral_reset_tx_ring(sc, &sc->prioq);
+	ral_reset_tx_ring(sc, &sc->atimq);
+	ral_reset_tx_ring(sc, &sc->bcnq);
+	ral_reset_rx_ring(sc, &sc->rxq);
+
+	/* for CardBus, power down the socket */
+	if (disable && sc->sc_disable != NULL)
+		(*sc->sc_disable)(sc);
+
+	sc->sc_tx_timer = 0;
+	ifp->if_timer = 0;
+	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
+}
+
+struct cfdriver ral_cd = {
+        0, "ral", DV_IFNET
+};
diff --git a/sys/dev/ic/ralreg.h b/sys/dev/ic/ralreg.h
new file mode 100644
index 00000000000..739d4a28a46
--- /dev/null
+++ b/sys/dev/ic/ralreg.h
@@ -0,0 +1,308 @@
+/*	$OpenBSD: ralreg.h,v 1.1 2005/02/15 20:51:21 damien Exp $  */
+
+/*-
+ * Copyright (c) 2005
+ *	Damien Bergamini <damien.bergamini@free.fr>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define RAL_TX_RING_COUNT	48
+#define RAL_ATIM_RING_COUNT	4
+#define RAL_PRIO_RING_COUNT	16
+#define RAL_BEACON_RING_COUNT	1
+#define RAL_RX_RING_COUNT	32
+
+#define RAL_TX_DESC_SIZE	(sizeof (struct ral_tx_desc))
+#define RAL_RX_DESC_SIZE	(sizeof (struct ral_rx_desc))
+
+#define RAL_MAX_SCATTER	1
+
+#define RAL_CSR0	0x0000
+#define RAL_CSR1	0x0004
+#define RAL_CSR2	0x0008
+#define RAL_CSR3	0x000c
+#define RAL_CSR4	0x0010
+#define RAL_CSR5	0x0014
+#define RAL_CSR6	0x0018
+#define RAL_CSR7	0x001c
+#define RAL_CSR8	0x0020
+#define RAL_CSR9	0x0024
+#define RAL_CSR11	0x002c
+#define RAL_CSR12	0x0030
+#define RAL_CSR13	0x0034
+#define RAL_CSR14	0x0038
+#define RAL_CSR15	0x003c
+#define RAL_CSR16	0x0040
+#define RAL_CSR17	0x0044
+#define RAL_CSR18	0x0048
+#define RAL_CSR19	0x004c
+#define RAL_CSR20	0x0050
+#define RAL_CSR21	0x0054
+#define RAL_CSR22	0x0058
+
+#define RAL_SECCSR0	0x0028
+#define RAL_SECCSR1	0x0158
+#define RAL_SECCSR3	0x00fc
+
+#define RAL_TXCSR0	0x0060
+#define RAL_TXCSR1	0x0064
+#define RAL_TXCSR2	0x0068
+#define RAL_TXCSR3	0x006c
+#define RAL_TXCSR4	0x0070
+#define RAL_TXCSR5	0x0074
+#define RAL_TXCSR6	0x0078
+#define RAL_TXCSR7	0x007c
+#define RAL_TXCSR8	0x0098
+#define RAL_TXCSR9	0x0094
+
+#define RAL_RXCSR0	0x0080
+#define RAL_RXCSR1	0x0084
+#define RAL_RXCSR2	0x0088
+#define RAL_RXCSR3	0x0090
+#define RAL_ARCSR1	0x009c
+
+#define RAL_PCICSR	0x008c
+
+#define RAL_CNT0	0x00a0
+#define RAL_CNT1	0x00ac
+#define RAL_CNT2	0x00b0
+#define RAL_CNT3	0x00b8
+#define RAL_CNT4	0x00bc
+#define RAL_CNT5	0x00c0
+
+#define RAL_PWRCSR0	0x00c4
+#define RAL_PSCSR0	0x00c8
+#define RAL_PSCSR1	0x00cc
+#define RAL_PSCSR2	0x00d0
+#define RAL_PSCSR3	0x00d4
+#define RAL_PWRCSR1	0x00d8
+#define RAL_TIMECSR	0x00dc
+#define RAL_MACCSR0	0x00e0
+#define RAL_MACCSR1	0x00e4
+#define RAL_RALINKCSR	0x00e8
+#define RAL_BCNCSR	0x00ec
+
+#define RAL_BBPCSR	0x00f0
+#define RAL_RFCSR	0x00f4
+#define RAL_LEDCSR	0x00f8
+
+#define RAL_TXACKCSR0	0x0110
+#define RAL_ACKCNT0	0x0114
+#define RAL_ACKCNT1	0x0118
+
+#define RAL_GPIOCSR	0x0120
+#define RAL_FIFOCSR0	0x0128
+#define RAL_FIFOCSR1	0x012C
+#define RAL_BCNCSR1	0x0130
+#define RAL_MACCSR2	0x0134
+#define RAL_TESTCSR	0x0138
+
+#define RAL_ARCSR2	0x013c
+#define RAL_ARCSR3	0x0140
+#define RAL_ARCSR4	0x0144
+#define RAL_ARCSR5	0x0148
+
+#define RAL_ARTCSR0	0x014c
+#define RAL_ARTCSR1	0x0150
+#define RAL_ARTCSR2	0x0154
+#define RAL_SECCSR1	0x0158
+#define RAL_BBPCSR1	0x015c
+
+
+#define RAL_CSR1_SOFT_RESET	(1 << 0)
+#define RAL_CSR1_HOST_READY	(1 << 2)
+
+#define RAL_CSR21_93C46		(1 << 5)
+
+#define RAL_TXCSR0_KICK_TX	(1 << 0)
+#define RAL_TXCSR0_KICK_ATIM	(1 << 1)
+#define RAL_TXCSR0_KICK_PRIO	(1 << 2)
+#define RAL_TXCSR0_ABORT	(1 << 3)
+
+#define RAL_RXCSR0_DISABLE		(1 << 0)
+#define RAL_RXCSR0_DROP_CRC		(1 << 1)
+#define RAL_RXCSR0_DROP_PHY		(1 << 2)
+#define RAL_RXCSR0_DROP_CTL		(1 << 3)
+#define RAL_RXCSR0_DROP_NOT_TO_ME	(1 << 4)
+#define RAL_RXCSR0_DROP_TODS		(1 << 5)
+#define RAL_RXCSR0_DROP_BAD_VERSION	(1 << 6)
+
+#define RAL_SECCSR0_KICK	(1 << 0)
+
+#define RAL_SECCSR1_KICK	(1 << 0)
+
+/* possible flags for register CSR7 */
+#define RAL_CSR7_BEACON_EXPIRE		0x00000001
+#define RAL_CSR7_WAKEUP_EXPIRE		0x00000002
+#define RAL_CSR7_ATIM_EXPIRE		0x00000004
+#define RAL_CSR7_TX_DONE		0x00000008
+#define RAL_CSR7_ATIM_DONE		0x00000010
+#define RAL_CSR7_PRIO_DONE		0x00000020
+#define RAL_CSR7_RX_DONE		0x00000040
+#define RAL_CSR7_DECRYPTION_DONE	0x00000080
+#define RAL_CSR7_ENCRYPTION_DONE	0x00000100
+
+#define RAL_CSR8_MASK							\
+	(~(RAL_CSR7_BEACON_EXPIRE | RAL_CSR7_WAKEUP_EXPIRE |		\
+	   RAL_CSR7_TX_DONE | RAL_CSR7_PRIO_DONE | RAL_CSR7_RX_DONE |	\
+	   RAL_CSR7_DECRYPTION_DONE | RAL_CSR7_ENCRYPTION_DONE))
+
+#define RAL_CSR14_TSF_AUTOCOUNT		(1 << 0)
+#define RAL_CSR14_TSF_SYNC_BSS		(1 << 1)
+#define RAL_CSR14_TSF_SYNC_IBSS		(2 << 1)
+#define RAL_CSR14_BCN_RELOAD		(1 << 3)
+#define RAL_CSR14_GENERATE_BEACON	(1 << 6)
+#define RAL_CSR14_PRELOAD_SHIFT		16
+
+/* Tx descriptor */
+struct ral_tx_desc {
+	uint32_t	flags;
+#define RAL_TX_BUSY		(1 << 0)
+#define RAL_TX_VALID		(1 << 1)
+
+#define RAL_TX_RESULT_MASK	0x0000001c
+#define RAL_TX_SUCCESS		(0 << 2)
+#define RAL_TX_SUCCESS_RETRY	(1 << 2)
+#define RAL_TX_FAIL_RETRY	(2 << 2)
+#define RAL_TX_FAIL_INVALID	(3 << 2)
+#define RAL_TX_FAIL_OTHER	(4 << 2)
+
+#define RAL_TX_NOT_LAST		(1 << 8)
+#define RAL_TX_NEED_ACK		(1 << 9)
+#define RAL_TX_INSERT_TIMESTAMP	(1 << 10)
+#define RAL_TX_OFDM		(1 << 11)
+#define RAL_TX_CIPHER_BUSY	(1 << 12)
+
+#define RAL_TX_IFS_MASK		0x00006000
+#define RAL_TX_IFS_BACKOFF	(0 << 13)
+#define RAL_TX_IFS_SIFS		(1 << 13)
+#define RAL_TX_IFS_NEW_BACKOFF	(2 << 13)
+#define RAL_TX_IFS_NONE		(3 << 13)
+
+#define RAL_TX_CIPHER_MASK	0xe0000000
+#define RAL_TX_CIPHER_NONE	(0 << 29)
+#define RAL_TX_CIPHER_WEP40	(1 << 29)
+#define RAL_TX_CIPHER_WEP104	(2 << 29)
+#define RAL_TX_CIPHER_TKIP	(3 << 29)
+#define RAL_TX_CIPHER_AES	(4 << 29)
+
+	uint32_t	physaddr;
+	uint32_t	wme;
+#define RAL_WME_CWMAX_BITS_SHIFT	12
+#define RAL_WME_CWMIN_BITS_SHIFT	8
+#define RAL_WME_AIFSN_BITS_SHIFT	6
+
+	uint8_t		plcp_signal;
+	uint8_t		plcp_service;
+#define RAL_PLCP_LENGEXT	0x80
+
+	uint16_t	plcp_length;
+	uint32_t	iv;
+	uint32_t	eiv;
+	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint32_t	reserved[2];
+} __packed;
+
+/* Rx descriptor */
+struct ral_rx_desc {
+	uint32_t	flags;
+#define RAL_RX_BUSY		(1 << 0)
+#define RAL_RX_CRC_ERROR	(1 << 5)
+#define RAL_RX_PHY_ERROR	(1 << 7)
+#define RAL_RX_CIPHER_BUSY	(1 << 8)
+#define RAL_RX_ICV_ERROR	(1 << 9)
+
+#define RAL_RX_CIPHER_MASK	0xe0000000
+#define RAL_RX_CIPHER_NONE	(0 << 29)
+#define RAL_RX_CIPHER_WEP40	(1 << 29)
+#define RAL_RX_CIPHER_WEP104	(2 << 29)
+#define RAL_RX_CIPHER_TKIP	(3 << 29)
+#define RAL_RX_CIPHER_AES	(4 << 29)
+
+	uint32_t	physaddr;
+	uint8_t		rate;
+	uint8_t		rssi;
+	uint8_t		ta[IEEE80211_ADDR_LEN];
+	uint32_t	iv;
+	uint32_t	eiv;
+	uint8_t		key[IEEE80211_KEYBUF_SIZE];
+	uint32_t	reserved[2];
+} __packed;
+
+
+#define RAL_RF1	0
+#define RAL_RF2	2
+#define RAL_RF3	1
+#define RAL_RF4	3
+
+#define RAL_RF1_AUTOTUNE	0x08000
+#define RAL_RF3_AUTOTUNE	0x00040
+
+#define RAL_BBP_BUSY	(1 << 15)
+#define RAL_BBP_WRITE	(1 << 16)
+#define RAL_RF_BUSY	(1 << 31)
+#define RAL_RF_20BIT	(20 << 24)
+
+#define RAL_RF_2522	0x00
+#define RAL_RF_2523	0x01
+#define RAL_RF_2524	0x02
+#define RAL_RF_2525	0x03
+#define RAL_RF_2525E	0x04
+/* dual-band RF */
+#define RAL_RF_5222	0x10
+
+#define RAL_BBP_VERSION	0
+
+#define RAL_LED_MODE_DEFAULT		0
+#define RAL_LED_MODE_TXRX_ACTIVITY	1
+#define RAL_LED_MODE_SINGLE		2
+#define RAL_LED_MODE_ASUS		3
+
+#define RAL_JAPAN_FILTER	0x8
+
+#define RAL_EEPROM_ANTENNA	16
+#define RAL_EEPROM_CONFIG	17
+#define RAL_EEPROM_COUNTRY	18
+#define RAL_EEPROM_BBP_BASE	19
+#define RAL_EEPROM_TXPOWER_BASE	35
+#define RAL_EEPROM_TSSI_BASE	42
+#define RAL_EEPROM_RSSITODBM	62
+#define RAL_EEPROM_VERSION	63
+
+#define RAL_EEPROM_DELAY	1	/* minimum hold time (microsecond) */
+
+#define RAL_EEPROM_C	(1 << 1)	/* Serial Clock */
+#define RAL_EEPROM_S	(1 << 2)	/* Chip Select */
+#define RAL_EEPROM_D	(1 << 3)	/* Serial data input */
+#define RAL_EEPROM_Q	(1 << 4)	/* Serial data output */
+
+#define RAL_EEPROM_SHIFT_D	3
+#define RAL_EEPROM_SHIFT_Q	4
+
+/*
+ * control and status registers access macros
+ */
+#define RAL_READ(sc, reg)						\
+	bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg))
+
+#define RAL_WRITE(sc, reg, val)						\
+	bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val))
+
+/*
+ * EEPROM access macro
+ */
+#define RAL_EEPROM_CTL(sc, val) do {					\
+	RAL_WRITE((sc), RAL_CSR21, (val));				\
+	DELAY(RAL_EEPROM_DELAY);					\
+} while (/* CONSTCOND */0)
diff --git a/sys/dev/ic/ralvar.h b/sys/dev/ic/ralvar.h
new file mode 100644
index 00000000000..9499e4c0d59
--- /dev/null
+++ b/sys/dev/ic/ralvar.h
@@ -0,0 +1,153 @@
+/*	$OpenBSD: ralvar.h,v 1.1 2005/02/15 20:51:21 damien Exp $  */
+
+/*-
+ * Copyright (c) 2005
+ *	Damien Bergamini <damien.bergamini@free.fr>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct ral_rx_radiotap_header {
+	struct ieee80211_radiotap_header wr_ihdr;
+	uint8_t		wr_flags;
+	uint16_t	wr_chan_freq;
+	uint16_t	wr_chan_flags;
+	uint8_t		wr_antsignal;
+};
+
+#define RAL_RX_RADIOTAP_PRESENT						\
+	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
+	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
+	 (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL))
+
+struct ral_tx_radiotap_header {
+	struct ieee80211_radiotap_header wt_ihdr;
+	uint8_t		wt_flags;
+	uint16_t	wt_chan_freq;
+	uint16_t	wt_chan_flags;
+};
+
+#define RAL_TX_RADIOTAP_PRESENT						\
+	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
+	 (1 << IEEE80211_RADIOTAP_CHANNEL))
+
+struct ral_tx_data {
+	bus_dmamap_t			map;
+	struct mbuf			*m;
+	struct ieee80211_node		*ni;
+	struct ieee80211_rssdesc	id;
+};
+
+struct ral_tx_ring {
+	bus_dmamap_t		map;
+	bus_dma_segment_t	seg;
+	bus_addr_t		physaddr;
+	struct ral_tx_desc	*desc;
+	struct ral_tx_data	*data;
+	int			count;
+	int			queued;
+	int			cur;
+	int			next;
+	int			cur_encrypt;
+	int			next_encrypt;
+};
+
+struct ral_rx_data {
+	bus_dmamap_t	map;
+	struct mbuf	*m;
+	int		drop;
+};
+
+struct ral_rx_ring {
+	bus_dmamap_t		map;
+	bus_dma_segment_t	seg;
+	bus_addr_t		physaddr;
+	struct ral_rx_desc	*desc;
+	struct ral_rx_data	*data;
+	int			count;
+	int			cur;
+	int			next;
+	int			cur_decrypt;
+};
+
+struct ral_softc {
+	struct device			sc_dev;
+
+	struct ieee80211com		sc_ic;
+	int				(*sc_newstate)(struct ieee80211com *,
+					    enum ieee80211_state, int);
+
+	int				(*sc_enable)(struct ral_softc *);
+	void				(*sc_disable)(struct ral_softc *);
+	void				(*sc_power)(struct ral_softc *, int);
+
+	bus_dma_tag_t			sc_dmat;
+        bus_space_tag_t			sc_st;
+        bus_space_handle_t		sc_sh;
+
+	struct ieee80211_rssadapt	rssadapt;
+
+	struct timeout			scan_ch;
+	struct timeout			rssadapt_ch;
+
+	int				sc_tx_timer;
+
+	uint32_t			asic_rev;
+	uint32_t			eeprom_rev;
+	uint8_t				rf_rev;
+
+	struct ral_tx_ring		txq;
+	struct ral_tx_ring		prioq;
+	struct ral_tx_ring		atimq;
+	struct ral_tx_ring		bcnq;
+	struct ral_rx_ring		rxq;
+
+	uint32_t			rf_regs[4];
+	uint8_t				txpow[14];
+
+	struct {
+		uint8_t		reg;
+		uint8_t		val;	
+	}				bbp_prom[16];
+
+	int				led_mode;
+	int				hw_radio;
+	int				rx_ant;
+	int				tx_ant;
+	int				nb_ant;
+	int				bbp_tune;
+	
+
+#if NBPFILTER > 0
+	caddr_t				sc_drvbpf;
+
+	union {
+		struct ral_rx_radiotap_header th;
+		uint8_t	pad[64];
+	}				sc_rxtapu;
+#define sc_rxtap	sc_rxtapu.th
+	int				sc_rxtap_len;
+
+	union {
+		struct ral_tx_radiotap_header th;
+		uint8_t	pad[64];
+	}				sc_txtapu;
+#define sc_txtap	sc_txtapu.th
+	int				sc_txtap_len;
+#endif
+};
+
+int	ral_attach(struct ral_softc *);
+int	ral_detach(struct ral_softc *);
+int	ral_intr(void *);
+int	ral_activate(struct device *, enum devact);