1 /* $FreeBSD: head/sys/dev/ral/rt2661.c 195618 2009-07-11 15:02:45Z rpaulo $ */
5 * Damien Bergamini <damien.bergamini@free.fr>
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 * $FreeBSD: head/sys/dev/ral/rt2661.c 195618 2009-07-11 15:02:45Z rpaulo $
24 * Ralink Technology RT2561, RT2561S and RT2661 chipset driver
25 * http://www.ralinktech.com/
28 #include <sys/param.h>
29 #include <sys/sysctl.h>
30 #include <sys/sockio.h>
32 #include <sys/kernel.h>
33 #include <sys/socket.h>
34 #include <sys/systm.h>
35 #include <sys/malloc.h>
37 #include <sys/mutex.h>
38 #include <sys/module.h>
40 #include <sys/endian.h>
41 #include <sys/firmware.h>
46 #include <net/if_arp.h>
47 #include <net/ethernet.h>
48 #include <net/if_dl.h>
49 #include <net/if_media.h>
50 #include <net/if_types.h>
51 #include <net/ifq_var.h>
53 #include <netproto/802_11/ieee80211_var.h>
54 #include <netproto/802_11/ieee80211_radiotap.h>
55 #include <netproto/802_11/ieee80211_regdomain.h>
56 #include <netproto/802_11/ieee80211_ratectl.h>
58 #include <netinet/in.h>
59 #include <netinet/in_systm.h>
60 #include <netinet/in_var.h>
61 #include <netinet/ip.h>
62 #include <netinet/if_ether.h>
64 #include <dev/netif/ral/rt2661reg.h>
65 #include <dev/netif/ral/rt2661var.h>
69 #define DPRINTF(sc, fmt, ...) do { \
70 if (sc->sc_debug > 0) \
71 kprintf(fmt, __VA_ARGS__); \
73 #define DPRINTFN(sc, n, fmt, ...) do { \
74 if (sc->sc_debug >= (n)) \
75 kprintf(fmt, __VA_ARGS__); \
78 #define DPRINTF(sc, fmt, ...)
79 #define DPRINTFN(sc, n, fmt, ...)
82 static struct ieee80211vap *rt2661_vap_create(struct ieee80211com *,
83 const char name[IFNAMSIZ], int unit, int opmode,
84 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
85 const uint8_t mac[IEEE80211_ADDR_LEN]);
86 static void rt2661_vap_delete(struct ieee80211vap *);
87 static void rt2661_dma_map_addr(void *, bus_dma_segment_t *, int,
89 static int rt2661_alloc_tx_ring(struct rt2661_softc *,
90 struct rt2661_tx_ring *, int);
91 static void rt2661_reset_tx_ring(struct rt2661_softc *,
92 struct rt2661_tx_ring *);
93 static void rt2661_free_tx_ring(struct rt2661_softc *,
94 struct rt2661_tx_ring *);
95 static int rt2661_alloc_rx_ring(struct rt2661_softc *,
96 struct rt2661_rx_ring *, int);
97 static void rt2661_reset_rx_ring(struct rt2661_softc *,
98 struct rt2661_rx_ring *);
99 static void rt2661_free_rx_ring(struct rt2661_softc *,
100 struct rt2661_rx_ring *);
101 static void rt2661_newassoc(struct ieee80211_node *, int);
102 static int rt2661_newstate(struct ieee80211vap *,
103 enum ieee80211_state, int);
104 static uint16_t rt2661_eeprom_read(struct rt2661_softc *, uint8_t);
105 static void rt2661_rx_intr(struct rt2661_softc *);
106 static void rt2661_tx_intr(struct rt2661_softc *);
107 static void rt2661_tx_dma_intr(struct rt2661_softc *,
108 struct rt2661_tx_ring *);
109 static void rt2661_mcu_beacon_expire(struct rt2661_softc *);
110 static void rt2661_mcu_wakeup(struct rt2661_softc *);
111 static void rt2661_mcu_cmd_intr(struct rt2661_softc *);
112 static void rt2661_scan_start(struct ieee80211com *);
113 static void rt2661_scan_end(struct ieee80211com *);
114 static void rt2661_set_channel(struct ieee80211com *);
115 static void rt2661_setup_tx_desc(struct rt2661_softc *,
116 struct rt2661_tx_desc *, uint32_t, uint16_t, int,
117 int, const bus_dma_segment_t *, int, int);
118 static int rt2661_tx_data(struct rt2661_softc *, struct mbuf *,
119 struct ieee80211_node *, int);
120 static int rt2661_tx_mgt(struct rt2661_softc *, struct mbuf *,
121 struct ieee80211_node *);
122 static void rt2661_start_locked(struct ifnet *);
123 static void rt2661_start(struct ifnet *);
124 static int rt2661_raw_xmit(struct ieee80211_node *, struct mbuf *,
125 const struct ieee80211_bpf_params *);
126 static void rt2661_watchdog_callout(void *);
127 static int rt2661_ioctl(struct ifnet *, u_long, caddr_t,
129 static void rt2661_bbp_write(struct rt2661_softc *, uint8_t,
131 static uint8_t rt2661_bbp_read(struct rt2661_softc *, uint8_t);
132 static void rt2661_rf_write(struct rt2661_softc *, uint8_t,
134 static int rt2661_tx_cmd(struct rt2661_softc *, uint8_t,
136 static void rt2661_select_antenna(struct rt2661_softc *);
137 static void rt2661_enable_mrr(struct rt2661_softc *);
138 static void rt2661_set_txpreamble(struct rt2661_softc *);
139 static void rt2661_set_basicrates(struct rt2661_softc *,
140 const struct ieee80211_rateset *);
141 static void rt2661_select_band(struct rt2661_softc *,
142 struct ieee80211_channel *);
143 static void rt2661_set_chan(struct rt2661_softc *,
144 struct ieee80211_channel *);
145 static void rt2661_set_bssid(struct rt2661_softc *,
147 static void rt2661_set_macaddr(struct rt2661_softc *,
149 static void rt2661_update_promisc(struct ifnet *);
150 static int rt2661_wme_update(struct ieee80211com *) __unused;
151 static void rt2661_update_slot(struct ifnet *);
152 static const char *rt2661_get_rf(int);
153 static void rt2661_read_eeprom(struct rt2661_softc *,
154 uint8_t macaddr[IEEE80211_ADDR_LEN]);
155 static int rt2661_bbp_init(struct rt2661_softc *);
156 static void rt2661_init_locked(struct rt2661_softc *);
157 static void rt2661_init(void *);
158 static void rt2661_stop_locked(struct rt2661_softc *);
159 static void rt2661_stop(void *);
160 static int rt2661_load_microcode(struct rt2661_softc *);
162 static void rt2661_rx_tune(struct rt2661_softc *);
163 static void rt2661_radar_start(struct rt2661_softc *);
164 static int rt2661_radar_stop(struct rt2661_softc *);
166 static int rt2661_prepare_beacon(struct rt2661_softc *,
167 struct ieee80211vap *);
168 static void rt2661_enable_tsf_sync(struct rt2661_softc *);
169 static void rt2661_enable_tsf(struct rt2661_softc *);
170 static int rt2661_get_rssi(struct rt2661_softc *, uint8_t);
172 static const struct {
175 } rt2661_def_mac[] = {
179 static const struct {
182 } rt2661_def_bbp[] = {
186 static const struct rfprog {
188 uint32_t r1, r2, r3, r4;
189 } rt2661_rf5225_1[] = {
191 }, rt2661_rf5225_2[] = {
196 rt2661_attach(device_t dev, int id)
198 struct rt2661_softc *sc = device_get_softc(dev);
199 struct ieee80211com *ic;
202 int error, ac, ntries;
204 uint8_t macaddr[IEEE80211_ADDR_LEN];
205 struct sysctl_ctx_list *ctx;
206 struct sysctl_oid *tree;
211 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
213 device_printf(sc->sc_dev, "can not if_alloc()\n");
218 callout_init(&sc->watchdog_ch);
220 /* wait for NIC to initialize */
221 for (ntries = 0; ntries < 1000; ntries++) {
222 if ((val = RAL_READ(sc, RT2661_MAC_CSR0)) != 0)
226 if (ntries == 1000) {
227 device_printf(sc->sc_dev,
228 "timeout waiting for NIC to initialize\n");
233 /* retrieve RF rev. no and various other things from EEPROM */
234 rt2661_read_eeprom(sc, macaddr);
236 device_printf(dev, "MAC/BBP RT%X, RF %s\n", val,
237 rt2661_get_rf(sc->rf_rev));
240 * Allocate Tx and Rx rings.
242 for (ac = 0; ac < 4; ac++) {
243 error = rt2661_alloc_tx_ring(sc, &sc->txq[ac],
244 RT2661_TX_RING_COUNT);
246 device_printf(sc->sc_dev,
247 "could not allocate Tx ring %d\n", ac);
252 error = rt2661_alloc_tx_ring(sc, &sc->mgtq, RT2661_MGT_RING_COUNT);
254 device_printf(sc->sc_dev, "could not allocate Mgt ring\n");
258 error = rt2661_alloc_rx_ring(sc, &sc->rxq, RT2661_RX_RING_COUNT);
260 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
265 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
266 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
267 ifp->if_init = rt2661_init;
268 ifp->if_ioctl = rt2661_ioctl;
269 ifp->if_start = rt2661_start;
270 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
271 ifq_set_ready(&ifp->if_snd);
274 ic->ic_opmode = IEEE80211_M_STA;
275 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
277 /* set device capabilities */
279 IEEE80211_C_STA /* station mode */
280 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
281 | IEEE80211_C_HOSTAP /* hostap mode */
282 | IEEE80211_C_MONITOR /* monitor mode */
283 | IEEE80211_C_AHDEMO /* adhoc demo mode */
284 | IEEE80211_C_WDS /* 4-address traffic works */
285 | IEEE80211_C_MBSS /* mesh point link mode */
286 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
287 | IEEE80211_C_SHSLOT /* short slot time supported */
288 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
289 | IEEE80211_C_BGSCAN /* capable of bg scanning */
291 | IEEE80211_C_TXFRAG /* handle tx frags */
292 | IEEE80211_C_WME /* 802.11e */
297 setbit(&bands, IEEE80211_MODE_11B);
298 setbit(&bands, IEEE80211_MODE_11G);
299 if (sc->rf_rev == RT2661_RF_5225 || sc->rf_rev == RT2661_RF_5325)
300 setbit(&bands, IEEE80211_MODE_11A);
301 ieee80211_init_channels(ic, NULL, &bands);
303 ieee80211_ifattach(ic, macaddr);
304 ic->ic_newassoc = rt2661_newassoc;
306 ic->ic_wme.wme_update = rt2661_wme_update;
308 ic->ic_scan_start = rt2661_scan_start;
309 ic->ic_scan_end = rt2661_scan_end;
310 ic->ic_set_channel = rt2661_set_channel;
311 ic->ic_updateslot = rt2661_update_slot;
312 ic->ic_update_promisc = rt2661_update_promisc;
313 ic->ic_raw_xmit = rt2661_raw_xmit;
315 ic->ic_vap_create = rt2661_vap_create;
316 ic->ic_vap_delete = rt2661_vap_delete;
318 ieee80211_radiotap_attach(ic,
319 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
320 RT2661_TX_RADIOTAP_PRESENT,
321 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
322 RT2661_RX_RADIOTAP_PRESENT);
324 ctx = &sc->sc_sysctl_ctx;
325 sysctl_ctx_init(ctx);
326 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
328 device_get_nameunit(sc->sc_dev),
331 device_printf(sc->sc_dev, "can't add sysctl node\n");
335 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
336 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
339 ieee80211_announce(ic);
343 fail3: rt2661_free_tx_ring(sc, &sc->mgtq);
344 fail2: while (--ac >= 0)
345 rt2661_free_tx_ring(sc, &sc->txq[ac]);
352 rt2661_detach(void *xsc)
354 struct rt2661_softc *sc = xsc;
355 struct ifnet *ifp = sc->sc_ifp;
356 struct ieee80211com *ic = ifp->if_l2com;
358 rt2661_stop_locked(sc);
360 ieee80211_ifdetach(ic);
362 rt2661_free_tx_ring(sc, &sc->txq[0]);
363 rt2661_free_tx_ring(sc, &sc->txq[1]);
364 rt2661_free_tx_ring(sc, &sc->txq[2]);
365 rt2661_free_tx_ring(sc, &sc->txq[3]);
366 rt2661_free_tx_ring(sc, &sc->mgtq);
367 rt2661_free_rx_ring(sc, &sc->rxq);
374 static struct ieee80211vap *
375 rt2661_vap_create(struct ieee80211com *ic,
376 const char name[IFNAMSIZ], int unit, int opmode, int flags,
377 const uint8_t bssid[IEEE80211_ADDR_LEN],
378 const uint8_t mac[IEEE80211_ADDR_LEN])
380 struct ifnet *ifp = ic->ic_ifp;
381 struct rt2661_vap *rvp;
382 struct ieee80211vap *vap;
385 case IEEE80211_M_STA:
386 case IEEE80211_M_IBSS:
387 case IEEE80211_M_AHDEMO:
388 case IEEE80211_M_MONITOR:
389 case IEEE80211_M_HOSTAP:
390 case IEEE80211_M_MBSS:
392 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
393 if_printf(ifp, "only 1 vap supported\n");
396 if (opmode == IEEE80211_M_STA)
397 flags |= IEEE80211_CLONE_NOBEACONS;
399 case IEEE80211_M_WDS:
400 if (TAILQ_EMPTY(&ic->ic_vaps) ||
401 ic->ic_opmode != IEEE80211_M_HOSTAP) {
402 if_printf(ifp, "wds only supported in ap mode\n");
406 * Silently remove any request for a unique
407 * bssid; WDS vap's always share the local
410 flags &= ~IEEE80211_CLONE_BSSID;
413 if_printf(ifp, "unknown opmode %d\n", opmode);
416 rvp = (struct rt2661_vap *) kmalloc(sizeof(struct rt2661_vap),
417 M_80211_VAP, M_INTWAIT | M_ZERO);
421 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
423 /* override state transition machine */
424 rvp->ral_newstate = vap->iv_newstate;
425 vap->iv_newstate = rt2661_newstate;
427 vap->iv_update_beacon = rt2661_beacon_update;
430 ieee80211_ratectl_init(vap);
432 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
433 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
434 ic->ic_opmode = opmode;
439 rt2661_vap_delete(struct ieee80211vap *vap)
441 struct rt2661_vap *rvp = RT2661_VAP(vap);
443 ieee80211_ratectl_deinit(vap);
444 ieee80211_vap_detach(vap);
445 kfree(rvp, M_80211_VAP);
449 rt2661_shutdown(void *xsc)
451 struct rt2661_softc *sc = xsc;
457 rt2661_suspend(void *xsc)
459 struct rt2661_softc *sc = xsc;
465 rt2661_resume(void *xsc)
467 struct rt2661_softc *sc = xsc;
468 struct ifnet *ifp = sc->sc_ifp;
470 if (ifp->if_flags & IFF_UP)
475 rt2661_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
480 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
482 *(bus_addr_t *)arg = segs[0].ds_addr;
486 rt2661_alloc_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring,
493 ring->cur = ring->next = ring->stat = 0;
495 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
496 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
497 count * RT2661_TX_DESC_SIZE, 1, count * RT2661_TX_DESC_SIZE,
498 0, &ring->desc_dmat);
500 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
504 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
505 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
507 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
511 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
512 count * RT2661_TX_DESC_SIZE, rt2661_dma_map_addr, &ring->physaddr,
515 device_printf(sc->sc_dev, "could not load desc DMA map\n");
519 ring->data = kmalloc(count * sizeof (struct rt2661_tx_data), M_DEVBUF,
521 if (ring->data == NULL) {
522 device_printf(sc->sc_dev, "could not allocate soft data\n");
527 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
528 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
529 RT2661_MAX_SCATTER, MCLBYTES, 0, &ring->data_dmat);
531 device_printf(sc->sc_dev, "could not create data DMA tag\n");
535 for (i = 0; i < count; i++) {
536 error = bus_dmamap_create(ring->data_dmat, 0,
539 device_printf(sc->sc_dev, "could not create DMA map\n");
546 fail: rt2661_free_tx_ring(sc, ring);
551 rt2661_reset_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring)
553 struct rt2661_tx_desc *desc;
554 struct rt2661_tx_data *data;
557 for (i = 0; i < ring->count; i++) {
558 desc = &ring->desc[i];
559 data = &ring->data[i];
561 if (data->m != NULL) {
562 bus_dmamap_sync(ring->data_dmat, data->map,
563 BUS_DMASYNC_POSTWRITE);
564 bus_dmamap_unload(ring->data_dmat, data->map);
569 if (data->ni != NULL) {
570 ieee80211_free_node(data->ni);
577 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
580 ring->cur = ring->next = ring->stat = 0;
584 rt2661_free_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring)
586 struct rt2661_tx_data *data;
589 if (ring->desc != NULL) {
590 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
591 BUS_DMASYNC_POSTWRITE);
592 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
593 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
596 if (ring->desc_dmat != NULL)
597 bus_dma_tag_destroy(ring->desc_dmat);
599 if (ring->data != NULL) {
600 for (i = 0; i < ring->count; i++) {
601 data = &ring->data[i];
603 if (data->m != NULL) {
604 bus_dmamap_sync(ring->data_dmat, data->map,
605 BUS_DMASYNC_POSTWRITE);
606 bus_dmamap_unload(ring->data_dmat, data->map);
610 if (data->ni != NULL)
611 ieee80211_free_node(data->ni);
613 if (data->map != NULL)
614 bus_dmamap_destroy(ring->data_dmat, data->map);
617 kfree(ring->data, M_DEVBUF);
620 if (ring->data_dmat != NULL)
621 bus_dma_tag_destroy(ring->data_dmat);
625 rt2661_alloc_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring,
628 struct rt2661_rx_desc *desc;
629 struct rt2661_rx_data *data;
634 ring->cur = ring->next = 0;
636 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
637 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
638 count * RT2661_RX_DESC_SIZE, 1, count * RT2661_RX_DESC_SIZE,
639 0, &ring->desc_dmat);
641 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
645 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
646 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
648 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
652 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
653 count * RT2661_RX_DESC_SIZE, rt2661_dma_map_addr, &ring->physaddr,
656 device_printf(sc->sc_dev, "could not load desc DMA map\n");
660 ring->data = kmalloc(count * sizeof (struct rt2661_rx_data), M_DEVBUF,
662 if (ring->data == NULL) {
663 device_printf(sc->sc_dev, "could not allocate soft data\n");
669 * Pre-allocate Rx buffers and populate Rx ring.
671 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
672 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
673 1, MCLBYTES, 0, &ring->data_dmat);
675 device_printf(sc->sc_dev, "could not create data DMA tag\n");
679 for (i = 0; i < count; i++) {
680 desc = &sc->rxq.desc[i];
681 data = &sc->rxq.data[i];
683 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
685 device_printf(sc->sc_dev, "could not create DMA map\n");
689 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
690 if (data->m == NULL) {
691 device_printf(sc->sc_dev,
692 "could not allocate rx mbuf\n");
697 error = bus_dmamap_load(ring->data_dmat, data->map,
698 mtod(data->m, void *), MCLBYTES, rt2661_dma_map_addr,
701 device_printf(sc->sc_dev,
702 "could not load rx buf DMA map");
706 desc->flags = htole32(RT2661_RX_BUSY);
707 desc->physaddr = htole32(physaddr);
710 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
714 fail: rt2661_free_rx_ring(sc, ring);
719 rt2661_reset_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring)
723 for (i = 0; i < ring->count; i++)
724 ring->desc[i].flags = htole32(RT2661_RX_BUSY);
726 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
728 ring->cur = ring->next = 0;
732 rt2661_free_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring)
734 struct rt2661_rx_data *data;
737 if (ring->desc != NULL) {
738 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
739 BUS_DMASYNC_POSTWRITE);
740 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
741 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
744 if (ring->desc_dmat != NULL)
745 bus_dma_tag_destroy(ring->desc_dmat);
747 if (ring->data != NULL) {
748 for (i = 0; i < ring->count; i++) {
749 data = &ring->data[i];
751 if (data->m != NULL) {
752 bus_dmamap_sync(ring->data_dmat, data->map,
753 BUS_DMASYNC_POSTREAD);
754 bus_dmamap_unload(ring->data_dmat, data->map);
758 if (data->map != NULL)
759 bus_dmamap_destroy(ring->data_dmat, data->map);
762 kfree(ring->data, M_DEVBUF);
765 if (ring->data_dmat != NULL)
766 bus_dma_tag_destroy(ring->data_dmat);
770 rt2661_newassoc(struct ieee80211_node *ni, int isnew)
772 ieee80211_ratectl_node_deinit(ni);
773 ieee80211_ratectl_node_init(ni);
777 rt2661_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
779 struct rt2661_vap *rvp = RT2661_VAP(vap);
780 struct ieee80211com *ic = vap->iv_ic;
781 struct rt2661_softc *sc = ic->ic_ifp->if_softc;
784 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
787 /* abort TSF synchronization */
788 tmp = RAL_READ(sc, RT2661_TXRX_CSR9);
789 RAL_WRITE(sc, RT2661_TXRX_CSR9, tmp & ~0x00ffffff);
792 error = rvp->ral_newstate(vap, nstate, arg);
794 if (error == 0 && nstate == IEEE80211_S_RUN) {
795 struct ieee80211_node *ni = vap->iv_bss;
797 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
798 rt2661_enable_mrr(sc);
799 rt2661_set_txpreamble(sc);
800 rt2661_set_basicrates(sc, &ni->ni_rates);
801 rt2661_set_bssid(sc, ni->ni_bssid);
804 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
805 vap->iv_opmode == IEEE80211_M_IBSS ||
806 vap->iv_opmode == IEEE80211_M_MBSS) {
807 error = rt2661_prepare_beacon(sc, vap);
811 if (vap->iv_opmode != IEEE80211_M_MONITOR)
812 rt2661_enable_tsf_sync(sc);
814 rt2661_enable_tsf(sc);
820 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
824 rt2661_eeprom_read(struct rt2661_softc *sc, uint8_t addr)
830 /* clock C once before the first command */
831 RT2661_EEPROM_CTL(sc, 0);
833 RT2661_EEPROM_CTL(sc, RT2661_S);
834 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_C);
835 RT2661_EEPROM_CTL(sc, RT2661_S);
837 /* write start bit (1) */
838 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D);
839 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D | RT2661_C);
841 /* write READ opcode (10) */
842 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D);
843 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D | RT2661_C);
844 RT2661_EEPROM_CTL(sc, RT2661_S);
845 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_C);
847 /* write address (A5-A0 or A7-A0) */
848 n = (RAL_READ(sc, RT2661_E2PROM_CSR) & RT2661_93C46) ? 5 : 7;
849 for (; n >= 0; n--) {
850 RT2661_EEPROM_CTL(sc, RT2661_S |
851 (((addr >> n) & 1) << RT2661_SHIFT_D));
852 RT2661_EEPROM_CTL(sc, RT2661_S |
853 (((addr >> n) & 1) << RT2661_SHIFT_D) | RT2661_C);
856 RT2661_EEPROM_CTL(sc, RT2661_S);
858 /* read data Q15-Q0 */
860 for (n = 15; n >= 0; n--) {
861 RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_C);
862 tmp = RAL_READ(sc, RT2661_E2PROM_CSR);
863 val |= ((tmp & RT2661_Q) >> RT2661_SHIFT_Q) << n;
864 RT2661_EEPROM_CTL(sc, RT2661_S);
867 RT2661_EEPROM_CTL(sc, 0);
869 /* clear Chip Select and clock C */
870 RT2661_EEPROM_CTL(sc, RT2661_S);
871 RT2661_EEPROM_CTL(sc, 0);
872 RT2661_EEPROM_CTL(sc, RT2661_C);
878 rt2661_tx_intr(struct rt2661_softc *sc)
880 struct ifnet *ifp = sc->sc_ifp;
881 struct rt2661_tx_ring *txq;
882 struct rt2661_tx_data *data;
885 struct ieee80211vap *vap;
888 struct ieee80211_node *ni;
891 val = RAL_READ(sc, RT2661_STA_CSR4);
892 if (!(val & RT2661_TX_STAT_VALID))
895 /* retrieve the queue in which this frame was sent */
896 qid = RT2661_TX_QID(val);
897 txq = (qid <= 3) ? &sc->txq[qid] : &sc->mgtq;
899 /* retrieve rate control algorithm context */
900 data = &txq->data[txq->stat];
907 /* if no frame has been sent, ignore */
913 switch (RT2661_TX_RESULT(val)) {
914 case RT2661_TX_SUCCESS:
915 retrycnt = RT2661_TX_RETRYCNT(val);
917 DPRINTFN(sc, 10, "data frame sent successfully after "
918 "%d retries\n", retrycnt);
919 if (data->rix != IEEE80211_FIXED_RATE_NONE)
920 ieee80211_ratectl_tx_complete(vap, ni,
921 IEEE80211_RATECTL_TX_SUCCESS,
926 case RT2661_TX_RETRY_FAIL:
927 retrycnt = RT2661_TX_RETRYCNT(val);
929 DPRINTFN(sc, 9, "%s\n",
930 "sending data frame failed (too much retries)");
931 if (data->rix != IEEE80211_FIXED_RATE_NONE)
932 ieee80211_ratectl_tx_complete(vap, ni,
933 IEEE80211_RATECTL_TX_FAILURE,
940 device_printf(sc->sc_dev,
941 "sending data frame failed 0x%08x\n", val);
945 DPRINTFN(sc, 15, "tx done q=%d idx=%u\n", qid, txq->stat);
948 if (++txq->stat >= txq->count) /* faster than % count */
951 if (m->m_flags & M_TXCB)
952 ieee80211_process_callback(ni, m,
953 RT2661_TX_RESULT(val) != RT2661_TX_SUCCESS);
955 ieee80211_free_node(ni);
959 ifp->if_flags &= ~IFF_OACTIVE;
961 rt2661_start_locked(ifp);
965 rt2661_tx_dma_intr(struct rt2661_softc *sc, struct rt2661_tx_ring *txq)
967 struct rt2661_tx_desc *desc;
968 struct rt2661_tx_data *data;
970 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_POSTREAD);
973 desc = &txq->desc[txq->next];
974 data = &txq->data[txq->next];
976 if ((le32toh(desc->flags) & RT2661_TX_BUSY) ||
977 !(le32toh(desc->flags) & RT2661_TX_VALID))
980 bus_dmamap_sync(txq->data_dmat, data->map,
981 BUS_DMASYNC_POSTWRITE);
982 bus_dmamap_unload(txq->data_dmat, data->map);
984 /* descriptor is no longer valid */
985 desc->flags &= ~htole32(RT2661_TX_VALID);
987 DPRINTFN(sc, 15, "tx dma done q=%p idx=%u\n", txq, txq->next);
989 if (++txq->next >= txq->count) /* faster than % count */
993 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
997 rt2661_rx_intr(struct rt2661_softc *sc)
999 struct ifnet *ifp = sc->sc_ifp;
1000 struct ieee80211com *ic = ifp->if_l2com;
1001 struct rt2661_rx_desc *desc;
1002 struct rt2661_rx_data *data;
1003 bus_addr_t physaddr;
1004 struct ieee80211_frame *wh;
1005 struct ieee80211_node *ni;
1006 struct mbuf *mnew, *m;
1009 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1010 BUS_DMASYNC_POSTREAD);
1015 desc = &sc->rxq.desc[sc->rxq.cur];
1016 data = &sc->rxq.data[sc->rxq.cur];
1018 if (le32toh(desc->flags) & RT2661_RX_BUSY)
1021 if ((le32toh(desc->flags) & RT2661_RX_PHY_ERROR) ||
1022 (le32toh(desc->flags) & RT2661_RX_CRC_ERROR)) {
1024 * This should not happen since we did not request
1025 * to receive those frames when we filled TXRX_CSR0.
1027 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1028 le32toh(desc->flags));
1033 if ((le32toh(desc->flags) & RT2661_RX_CIPHER_MASK) != 0) {
1039 * Try to allocate a new mbuf for this ring element and load it
1040 * before processing the current mbuf. If the ring element
1041 * cannot be loaded, drop the received packet and reuse the old
1042 * mbuf. In the unlikely case that the old mbuf can't be
1043 * reloaded either, explicitly panic.
1045 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1051 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1052 BUS_DMASYNC_POSTREAD);
1053 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1055 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1056 mtod(mnew, void *), MCLBYTES, rt2661_dma_map_addr,
1061 /* try to reload the old mbuf */
1062 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1063 mtod(data->m, void *), MCLBYTES,
1064 rt2661_dma_map_addr, &physaddr, 0);
1066 /* very unlikely that it will fail... */
1067 panic("%s: could not load old rx mbuf",
1068 device_get_name(sc->sc_dev));
1075 * New mbuf successfully loaded, update Rx ring and continue
1080 desc->physaddr = htole32(physaddr);
1083 m->m_pkthdr.rcvif = ifp;
1084 m->m_pkthdr.len = m->m_len =
1085 (le32toh(desc->flags) >> 16) & 0xfff;
1087 rssi = rt2661_get_rssi(sc, desc->rssi);
1088 /* Error happened during RSSI conversion. */
1090 rssi = -30; /* XXX ignored by net80211 */
1091 nf = RT2661_NOISE_FLOOR;
1093 if (ieee80211_radiotap_active(ic)) {
1094 struct rt2661_rx_radiotap_header *tap = &sc->sc_rxtap;
1095 uint32_t tsf_lo, tsf_hi;
1097 /* get timestamp (low and high 32 bits) */
1098 tsf_hi = RAL_READ(sc, RT2661_TXRX_CSR13);
1099 tsf_lo = RAL_READ(sc, RT2661_TXRX_CSR12);
1102 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1104 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1105 (desc->flags & htole32(RT2661_RX_OFDM)) ?
1106 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1107 tap->wr_antsignal = nf + rssi;
1108 tap->wr_antnoise = nf;
1110 sc->sc_flags |= RAL_INPUT_RUNNING;
1111 wh = mtod(m, struct ieee80211_frame *);
1113 /* send the frame to the 802.11 layer */
1114 ni = ieee80211_find_rxnode(ic,
1115 (struct ieee80211_frame_min *)wh);
1117 (void) ieee80211_input(ni, m, rssi, nf);
1118 ieee80211_free_node(ni);
1120 (void) ieee80211_input_all(ic, m, rssi, nf);
1122 sc->sc_flags &= ~RAL_INPUT_RUNNING;
1124 skip: desc->flags |= htole32(RT2661_RX_BUSY);
1126 DPRINTFN(sc, 15, "rx intr idx=%u\n", sc->rxq.cur);
1128 sc->rxq.cur = (sc->rxq.cur + 1) % RT2661_RX_RING_COUNT;
1131 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1132 BUS_DMASYNC_PREWRITE);
1137 rt2661_mcu_beacon_expire(struct rt2661_softc *sc)
1143 rt2661_mcu_wakeup(struct rt2661_softc *sc)
1145 RAL_WRITE(sc, RT2661_MAC_CSR11, 5 << 16);
1147 RAL_WRITE(sc, RT2661_SOFT_RESET_CSR, 0x7);
1148 RAL_WRITE(sc, RT2661_IO_CNTL_CSR, 0x18);
1149 RAL_WRITE(sc, RT2661_PCI_USEC_CSR, 0x20);
1151 /* send wakeup command to MCU */
1152 rt2661_tx_cmd(sc, RT2661_MCU_CMD_WAKEUP, 0);
1156 rt2661_mcu_cmd_intr(struct rt2661_softc *sc)
1158 RAL_READ(sc, RT2661_M2H_CMD_DONE_CSR);
1159 RAL_WRITE(sc, RT2661_M2H_CMD_DONE_CSR, 0xffffffff);
1163 rt2661_intr(void *arg)
1165 struct rt2661_softc *sc = arg;
1166 struct ifnet *ifp = sc->sc_ifp;
1169 /* disable MAC and MCU interrupts */
1170 RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0xffffff7f);
1171 RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0xffffffff);
1173 /* don't re-enable interrupts if we're shutting down */
1174 if (!(ifp->if_flags & IFF_RUNNING)) {
1178 r1 = RAL_READ(sc, RT2661_INT_SOURCE_CSR);
1179 RAL_WRITE(sc, RT2661_INT_SOURCE_CSR, r1);
1181 r2 = RAL_READ(sc, RT2661_MCU_INT_SOURCE_CSR);
1182 RAL_WRITE(sc, RT2661_MCU_INT_SOURCE_CSR, r2);
1184 if (r1 & RT2661_MGT_DONE)
1185 rt2661_tx_dma_intr(sc, &sc->mgtq);
1187 if (r1 & RT2661_RX_DONE)
1190 if (r1 & RT2661_TX0_DMA_DONE)
1191 rt2661_tx_dma_intr(sc, &sc->txq[0]);
1193 if (r1 & RT2661_TX1_DMA_DONE)
1194 rt2661_tx_dma_intr(sc, &sc->txq[1]);
1196 if (r1 & RT2661_TX2_DMA_DONE)
1197 rt2661_tx_dma_intr(sc, &sc->txq[2]);
1199 if (r1 & RT2661_TX3_DMA_DONE)
1200 rt2661_tx_dma_intr(sc, &sc->txq[3]);
1202 if (r1 & RT2661_TX_DONE)
1205 if (r2 & RT2661_MCU_CMD_DONE)
1206 rt2661_mcu_cmd_intr(sc);
1208 if (r2 & RT2661_MCU_BEACON_EXPIRE)
1209 rt2661_mcu_beacon_expire(sc);
1211 if (r2 & RT2661_MCU_WAKEUP)
1212 rt2661_mcu_wakeup(sc);
1214 /* re-enable MAC and MCU interrupts */
1215 RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0x0000ff10);
1216 RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0);
1221 rt2661_plcp_signal(int rate)
1224 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1225 case 12: return 0xb;
1226 case 18: return 0xf;
1227 case 24: return 0xa;
1228 case 36: return 0xe;
1229 case 48: return 0x9;
1230 case 72: return 0xd;
1231 case 96: return 0x8;
1232 case 108: return 0xc;
1234 /* CCK rates (NB: not IEEE std, device-specific) */
1237 case 11: return 0x2;
1238 case 22: return 0x3;
1240 return 0xff; /* XXX unsupported/unknown rate */
1244 rt2661_setup_tx_desc(struct rt2661_softc *sc, struct rt2661_tx_desc *desc,
1245 uint32_t flags, uint16_t xflags, int len, int rate,
1246 const bus_dma_segment_t *segs, int nsegs, int ac)
1248 struct ifnet *ifp = sc->sc_ifp;
1249 struct ieee80211com *ic = ifp->if_l2com;
1250 uint16_t plcp_length;
1253 desc->flags = htole32(flags);
1254 desc->flags |= htole32(len << 16);
1255 desc->flags |= htole32(RT2661_TX_BUSY | RT2661_TX_VALID);
1257 desc->xflags = htole16(xflags);
1258 desc->xflags |= htole16(nsegs << 13);
1260 desc->wme = htole16(
1263 RT2661_LOGCWMIN(4) |
1264 RT2661_LOGCWMAX(10));
1267 * Remember in which queue this frame was sent. This field is driver
1268 * private data only. It will be made available by the NIC in STA_CSR4
1273 /* setup PLCP fields */
1274 desc->plcp_signal = rt2661_plcp_signal(rate);
1275 desc->plcp_service = 4;
1277 len += IEEE80211_CRC_LEN;
1278 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1279 desc->flags |= htole32(RT2661_TX_OFDM);
1281 plcp_length = len & 0xfff;
1282 desc->plcp_length_hi = plcp_length >> 6;
1283 desc->plcp_length_lo = plcp_length & 0x3f;
1285 plcp_length = (16 * len + rate - 1) / rate;
1287 remainder = (16 * len) % 22;
1288 if (remainder != 0 && remainder < 7)
1289 desc->plcp_service |= RT2661_PLCP_LENGEXT;
1291 desc->plcp_length_hi = plcp_length >> 8;
1292 desc->plcp_length_lo = plcp_length & 0xff;
1294 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1295 desc->plcp_signal |= 0x08;
1298 /* RT2x61 supports scatter with up to 5 segments */
1299 for (i = 0; i < nsegs; i++) {
1300 desc->addr[i] = htole32(segs[i].ds_addr);
1301 desc->len [i] = htole16(segs[i].ds_len);
1306 rt2661_tx_mgt(struct rt2661_softc *sc, struct mbuf *m0,
1307 struct ieee80211_node *ni)
1309 struct ieee80211vap *vap = ni->ni_vap;
1310 struct ieee80211com *ic = ni->ni_ic;
1311 struct rt2661_tx_desc *desc;
1312 struct rt2661_tx_data *data;
1313 struct ieee80211_frame *wh;
1314 struct ieee80211_key *k;
1315 bus_dma_segment_t segs[RT2661_MAX_SCATTER];
1317 uint32_t flags = 0; /* XXX HWSEQ */
1318 int nsegs, rate, error;
1320 desc = &sc->mgtq.desc[sc->mgtq.cur];
1321 data = &sc->mgtq.data[sc->mgtq.cur];
1323 rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
1325 wh = mtod(m0, struct ieee80211_frame *);
1327 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1328 k = ieee80211_crypto_encap(ni, m0);
1335 error = bus_dmamap_load_mbuf_segment(sc->mgtq.data_dmat, data->map, m0,
1336 segs, 1, &nsegs, BUS_DMA_NOWAIT);
1338 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1344 if (ieee80211_radiotap_active_vap(vap)) {
1345 struct rt2661_tx_radiotap_header *tap = &sc->sc_txtap;
1348 tap->wt_rate = rate;
1350 ieee80211_radiotap_tx(vap, m0);
1355 /* management frames are not taken into account for amrr */
1356 data->rix = IEEE80211_FIXED_RATE_NONE;
1358 wh = mtod(m0, struct ieee80211_frame *);
1360 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1361 flags |= RT2661_TX_NEED_ACK;
1363 dur = ieee80211_ack_duration(ic->ic_rt,
1364 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1365 *(uint16_t *)wh->i_dur = htole16(dur);
1367 /* tell hardware to add timestamp in probe responses */
1369 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1370 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1371 flags |= RT2661_TX_TIMESTAMP;
1374 rt2661_setup_tx_desc(sc, desc, flags, 0 /* XXX HWSEQ */,
1375 m0->m_pkthdr.len, rate, segs, nsegs, RT2661_QID_MGT);
1377 bus_dmamap_sync(sc->mgtq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1378 bus_dmamap_sync(sc->mgtq.desc_dmat, sc->mgtq.desc_map,
1379 BUS_DMASYNC_PREWRITE);
1381 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1382 m0->m_pkthdr.len, sc->mgtq.cur, rate);
1386 sc->mgtq.cur = (sc->mgtq.cur + 1) % RT2661_MGT_RING_COUNT;
1387 RAL_WRITE(sc, RT2661_TX_CNTL_CSR, RT2661_KICK_MGT);
1393 rt2661_sendprot(struct rt2661_softc *sc, int ac,
1394 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1396 struct ieee80211com *ic = ni->ni_ic;
1397 struct rt2661_tx_ring *txq = &sc->txq[ac];
1398 const struct ieee80211_frame *wh;
1399 struct rt2661_tx_desc *desc;
1400 struct rt2661_tx_data *data;
1402 int protrate, ackrate, pktlen, flags, isshort, error;
1404 bus_dma_segment_t segs[RT2661_MAX_SCATTER];
1407 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1408 ("protection %d", prot));
1410 wh = mtod(m, const struct ieee80211_frame *);
1411 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1413 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1414 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1416 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1417 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1418 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1419 flags = RT2661_TX_MORE_FRAG;
1420 if (prot == IEEE80211_PROT_RTSCTS) {
1421 /* NB: CTS is the same size as an ACK */
1422 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1423 flags |= RT2661_TX_NEED_ACK;
1424 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1426 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1428 if (mprot == NULL) {
1429 /* XXX stat + msg */
1433 data = &txq->data[txq->cur];
1434 desc = &txq->desc[txq->cur];
1436 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map, mprot, segs,
1437 1, &nsegs, BUS_DMA_NOWAIT);
1439 device_printf(sc->sc_dev,
1440 "could not map mbuf (error %d)\n", error);
1446 data->ni = ieee80211_ref_node(ni);
1447 /* ctl frames are not taken into account for amrr */
1448 data->rix = IEEE80211_FIXED_RATE_NONE;
1450 rt2661_setup_tx_desc(sc, desc, flags, 0, mprot->m_pkthdr.len,
1451 protrate, segs, 1, ac);
1453 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1454 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
1457 txq->cur = (txq->cur + 1) % RT2661_TX_RING_COUNT;
1463 rt2661_tx_data(struct rt2661_softc *sc, struct mbuf *m0,
1464 struct ieee80211_node *ni, int ac)
1466 struct ieee80211vap *vap = ni->ni_vap;
1467 struct ifnet *ifp = sc->sc_ifp;
1468 struct ieee80211com *ic = ifp->if_l2com;
1469 struct rt2661_tx_ring *txq = &sc->txq[ac];
1470 struct rt2661_tx_desc *desc;
1471 struct rt2661_tx_data *data;
1472 struct ieee80211_frame *wh;
1473 const struct ieee80211_txparam *tp;
1474 struct ieee80211_key *k;
1475 const struct chanAccParams *cap;
1477 bus_dma_segment_t segs[RT2661_MAX_SCATTER];
1480 int error, nsegs, rate, noack = 0;
1482 wh = mtod(m0, struct ieee80211_frame *);
1484 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1485 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1486 rate = tp->mcastrate;
1487 } else if (m0->m_flags & M_EAPOL) {
1488 rate = tp->mgmtrate;
1489 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1490 rate = tp->ucastrate;
1492 ieee80211_ratectl_rate(ni, NULL, 0);
1493 rate = ni->ni_txrate;
1495 rate &= IEEE80211_RATE_VAL;
1497 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) {
1498 cap = &ic->ic_wme.wme_chanParams;
1499 noack = cap->cap_wmeParams[ac].wmep_noackPolicy;
1502 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1503 k = ieee80211_crypto_encap(ni, m0);
1509 /* packet header may have moved, reset our local pointer */
1510 wh = mtod(m0, struct ieee80211_frame *);
1514 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1515 int prot = IEEE80211_PROT_NONE;
1516 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1517 prot = IEEE80211_PROT_RTSCTS;
1518 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1519 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1520 prot = ic->ic_protmode;
1521 if (prot != IEEE80211_PROT_NONE) {
1522 error = rt2661_sendprot(sc, ac, m0, ni, prot, rate);
1527 flags |= RT2661_TX_LONG_RETRY | RT2661_TX_IFS;
1531 data = &txq->data[txq->cur];
1532 desc = &txq->desc[txq->cur];
1534 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map, m0, segs,
1535 1, &nsegs, BUS_DMA_NOWAIT);
1536 if (error != 0 && error != EFBIG) {
1537 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1543 mnew = m_defrag(m0, MB_DONTWAIT);
1545 device_printf(sc->sc_dev,
1546 "could not defragment mbuf\n");
1552 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map, m0,
1553 segs, 1, &nsegs, BUS_DMA_NOWAIT);
1555 device_printf(sc->sc_dev,
1556 "could not map mbuf (error %d)\n", error);
1561 /* packet header have moved, reset our local pointer */
1562 wh = mtod(m0, struct ieee80211_frame *);
1565 if (ieee80211_radiotap_active_vap(vap)) {
1566 struct rt2661_tx_radiotap_header *tap = &sc->sc_txtap;
1569 tap->wt_rate = rate;
1571 ieee80211_radiotap_tx(vap, m0);
1577 /* remember link conditions for rate adaptation algorithm */
1578 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1579 data->rix = ni->ni_txrate;
1580 /* XXX probably need last rssi value and not avg */
1581 data->rssi = ic->ic_node_getrssi(ni);
1583 data->rix = IEEE80211_FIXED_RATE_NONE;
1585 if (!noack && !IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1586 flags |= RT2661_TX_NEED_ACK;
1588 dur = ieee80211_ack_duration(ic->ic_rt,
1589 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1590 *(uint16_t *)wh->i_dur = htole16(dur);
1593 rt2661_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate, segs,
1596 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1597 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE);
1599 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1600 m0->m_pkthdr.len, txq->cur, rate);
1604 txq->cur = (txq->cur + 1) % RT2661_TX_RING_COUNT;
1605 RAL_WRITE(sc, RT2661_TX_CNTL_CSR, 1 << ac);
1611 rt2661_start_locked(struct ifnet *ifp)
1613 struct rt2661_softc *sc = ifp->if_softc;
1615 struct ieee80211_node *ni;
1618 /* prevent management frames from being sent if we're not ready */
1619 if (!(ifp->if_flags & IFF_RUNNING) || sc->sc_invalid)
1623 IF_DEQUEUE(&ifp->if_snd, m);
1627 ac = M_WME_GETAC(m);
1628 if (sc->txq[ac].queued >= RT2661_TX_RING_COUNT - 1) {
1629 /* there is no place left in this ring */
1630 IF_PREPEND(&ifp->if_snd, m);
1631 ifp->if_flags |= IFF_OACTIVE;
1634 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1635 if (rt2661_tx_data(sc, m, ni, ac) != 0) {
1636 ieee80211_free_node(ni);
1641 sc->sc_tx_timer = 5;
1646 rt2661_start(struct ifnet *ifp)
1648 rt2661_start_locked(ifp);
1652 rt2661_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
1653 const struct ieee80211_bpf_params *params)
1655 struct ieee80211com *ic = ni->ni_ic;
1656 struct ifnet *ifp = ic->ic_ifp;
1657 struct rt2661_softc *sc = ifp->if_softc;
1659 /* prevent management frames from being sent if we're not ready */
1660 if (!(ifp->if_flags & IFF_RUNNING)) {
1662 ieee80211_free_node(ni);
1665 if (sc->mgtq.queued >= RT2661_MGT_RING_COUNT) {
1666 ifp->if_flags |= IFF_OACTIVE;
1668 ieee80211_free_node(ni);
1669 return ENOBUFS; /* XXX */
1675 * Legacy path; interpret frame contents to decide
1676 * precisely how to send the frame.
1679 if (rt2661_tx_mgt(sc, m, ni) != 0)
1681 sc->sc_tx_timer = 5;
1686 ieee80211_free_node(ni);
1687 return EIO; /* XXX */
1691 rt2661_watchdog_callout(void *arg)
1693 struct rt2661_softc *sc = (struct rt2661_softc *)arg;
1694 struct ifnet *ifp = sc->sc_ifp;
1696 KASSERT(ifp->if_flags & IFF_RUNNING, ("not running"));
1698 if (sc->sc_invalid) /* card ejected */
1701 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1702 if_printf(ifp, "device timeout\n");
1703 rt2661_init_locked(sc);
1705 /* NB: callout is reset in rt2661_init() */
1708 callout_reset(&sc->watchdog_ch, hz, rt2661_watchdog_callout, sc);
1713 rt2661_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
1715 struct rt2661_softc *sc = ifp->if_softc;
1716 struct ieee80211com *ic = ifp->if_l2com;
1717 struct ifreq *ifr = (struct ifreq *) data;
1718 int error = 0, startall = 0;
1722 if (ifp->if_flags & IFF_UP) {
1723 if ((ifp->if_flags & IFF_RUNNING) == 0) {
1724 rt2661_init_locked(sc);
1727 rt2661_update_promisc(ifp);
1729 if (ifp->if_flags & IFF_RUNNING)
1730 rt2661_stop_locked(sc);
1733 ieee80211_start_all(ic);
1736 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1739 error = ether_ioctl(ifp, cmd, data);
1749 rt2661_bbp_write(struct rt2661_softc *sc, uint8_t reg, uint8_t val)
1754 for (ntries = 0; ntries < 100; ntries++) {
1755 if (!(RAL_READ(sc, RT2661_PHY_CSR3) & RT2661_BBP_BUSY))
1759 if (ntries == 100) {
1760 device_printf(sc->sc_dev, "could not write to BBP\n");
1764 tmp = RT2661_BBP_BUSY | (reg & 0x7f) << 8 | val;
1765 RAL_WRITE(sc, RT2661_PHY_CSR3, tmp);
1767 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
1771 rt2661_bbp_read(struct rt2661_softc *sc, uint8_t reg)
1776 for (ntries = 0; ntries < 100; ntries++) {
1777 if (!(RAL_READ(sc, RT2661_PHY_CSR3) & RT2661_BBP_BUSY))
1781 if (ntries == 100) {
1782 device_printf(sc->sc_dev, "could not read from BBP\n");
1786 val = RT2661_BBP_BUSY | RT2661_BBP_READ | reg << 8;
1787 RAL_WRITE(sc, RT2661_PHY_CSR3, val);
1789 for (ntries = 0; ntries < 100; ntries++) {
1790 val = RAL_READ(sc, RT2661_PHY_CSR3);
1791 if (!(val & RT2661_BBP_BUSY))
1796 device_printf(sc->sc_dev, "could not read from BBP\n");
1801 rt2661_rf_write(struct rt2661_softc *sc, uint8_t reg, uint32_t val)
1806 for (ntries = 0; ntries < 100; ntries++) {
1807 if (!(RAL_READ(sc, RT2661_PHY_CSR4) & RT2661_RF_BUSY))
1811 if (ntries == 100) {
1812 device_printf(sc->sc_dev, "could not write to RF\n");
1816 tmp = RT2661_RF_BUSY | RT2661_RF_21BIT | (val & 0x1fffff) << 2 |
1818 RAL_WRITE(sc, RT2661_PHY_CSR4, tmp);
1820 /* remember last written value in sc */
1821 sc->rf_regs[reg] = val;
1823 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0x1fffff);
1827 rt2661_tx_cmd(struct rt2661_softc *sc, uint8_t cmd, uint16_t arg)
1829 if (RAL_READ(sc, RT2661_H2M_MAILBOX_CSR) & RT2661_H2M_BUSY)
1830 return EIO; /* there is already a command pending */
1832 RAL_WRITE(sc, RT2661_H2M_MAILBOX_CSR,
1833 RT2661_H2M_BUSY | RT2661_TOKEN_NO_INTR << 16 | arg);
1835 RAL_WRITE(sc, RT2661_HOST_CMD_CSR, RT2661_KICK_CMD | cmd);
1841 rt2661_select_antenna(struct rt2661_softc *sc)
1843 uint8_t bbp4, bbp77;
1846 bbp4 = rt2661_bbp_read(sc, 4);
1847 bbp77 = rt2661_bbp_read(sc, 77);
1851 /* make sure Rx is disabled before switching antenna */
1852 tmp = RAL_READ(sc, RT2661_TXRX_CSR0);
1853 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp | RT2661_DISABLE_RX);
1855 rt2661_bbp_write(sc, 4, bbp4);
1856 rt2661_bbp_write(sc, 77, bbp77);
1858 /* restore Rx filter */
1859 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp);
1863 * Enable multi-rate retries for frames sent at OFDM rates.
1864 * In 802.11b/g mode, allow fallback to CCK rates.
1867 rt2661_enable_mrr(struct rt2661_softc *sc)
1869 struct ifnet *ifp = sc->sc_ifp;
1870 struct ieee80211com *ic = ifp->if_l2com;
1873 tmp = RAL_READ(sc, RT2661_TXRX_CSR4);
1875 tmp &= ~RT2661_MRR_CCK_FALLBACK;
1876 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
1877 tmp |= RT2661_MRR_CCK_FALLBACK;
1878 tmp |= RT2661_MRR_ENABLED;
1880 RAL_WRITE(sc, RT2661_TXRX_CSR4, tmp);
1884 rt2661_set_txpreamble(struct rt2661_softc *sc)
1886 struct ifnet *ifp = sc->sc_ifp;
1887 struct ieee80211com *ic = ifp->if_l2com;
1890 tmp = RAL_READ(sc, RT2661_TXRX_CSR4);
1892 tmp &= ~RT2661_SHORT_PREAMBLE;
1893 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1894 tmp |= RT2661_SHORT_PREAMBLE;
1896 RAL_WRITE(sc, RT2661_TXRX_CSR4, tmp);
1900 rt2661_set_basicrates(struct rt2661_softc *sc,
1901 const struct ieee80211_rateset *rs)
1903 #define RV(r) ((r) & IEEE80211_RATE_VAL)
1904 struct ifnet *ifp = sc->sc_ifp;
1905 struct ieee80211com *ic = ifp->if_l2com;
1910 for (i = 0; i < rs->rs_nrates; i++) {
1911 rate = rs->rs_rates[i];
1913 if (!(rate & IEEE80211_RATE_BASIC))
1917 * Find h/w rate index. We know it exists because the rate
1918 * set has already been negotiated.
1920 for (j = 0; ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates[j] != RV(rate); j++);
1925 RAL_WRITE(sc, RT2661_TXRX_CSR5, mask);
1927 DPRINTF(sc, "Setting basic rate mask to 0x%x\n", mask);
1932 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1936 rt2661_select_band(struct rt2661_softc *sc, struct ieee80211_channel *c)
1938 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1941 /* update all BBP registers that depend on the band */
1942 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1943 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1944 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1945 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1946 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1948 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1949 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1950 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1953 rt2661_bbp_write(sc, 17, bbp17);
1954 rt2661_bbp_write(sc, 96, bbp96);
1955 rt2661_bbp_write(sc, 104, bbp104);
1957 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1958 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1959 rt2661_bbp_write(sc, 75, 0x80);
1960 rt2661_bbp_write(sc, 86, 0x80);
1961 rt2661_bbp_write(sc, 88, 0x80);
1964 rt2661_bbp_write(sc, 35, bbp35);
1965 rt2661_bbp_write(sc, 97, bbp97);
1966 rt2661_bbp_write(sc, 98, bbp98);
1968 tmp = RAL_READ(sc, RT2661_PHY_CSR0);
1969 tmp &= ~(RT2661_PA_PE_2GHZ | RT2661_PA_PE_5GHZ);
1970 if (IEEE80211_IS_CHAN_2GHZ(c))
1971 tmp |= RT2661_PA_PE_2GHZ;
1973 tmp |= RT2661_PA_PE_5GHZ;
1974 RAL_WRITE(sc, RT2661_PHY_CSR0, tmp);
1978 rt2661_set_chan(struct rt2661_softc *sc, struct ieee80211_channel *c)
1980 struct ifnet *ifp = sc->sc_ifp;
1981 struct ieee80211com *ic = ifp->if_l2com;
1982 const struct rfprog *rfprog;
1983 uint8_t bbp3, bbp94 = RT2661_BBPR94_DEFAULT;
1987 chan = ieee80211_chan2ieee(ic, c);
1988 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
1990 /* select the appropriate RF settings based on what EEPROM says */
1991 rfprog = (sc->rfprog == 0) ? rt2661_rf5225_1 : rt2661_rf5225_2;
1993 /* find the settings for this channel (we know it exists) */
1994 for (i = 0; rfprog[i].chan != chan; i++);
1996 power = sc->txpow[i];
2000 } else if (power > 31) {
2001 bbp94 += power - 31;
2006 * If we are switching from the 2GHz band to the 5GHz band or
2007 * vice-versa, BBP registers need to be reprogrammed.
2009 if (c->ic_flags != sc->sc_curchan->ic_flags) {
2010 rt2661_select_band(sc, c);
2011 rt2661_select_antenna(sc);
2015 rt2661_rf_write(sc, RAL_RF1, rfprog[i].r1);
2016 rt2661_rf_write(sc, RAL_RF2, rfprog[i].r2);
2017 rt2661_rf_write(sc, RAL_RF3, rfprog[i].r3 | power << 7);
2018 rt2661_rf_write(sc, RAL_RF4, rfprog[i].r4 | sc->rffreq << 10);
2022 rt2661_rf_write(sc, RAL_RF1, rfprog[i].r1);
2023 rt2661_rf_write(sc, RAL_RF2, rfprog[i].r2);
2024 rt2661_rf_write(sc, RAL_RF3, rfprog[i].r3 | power << 7 | 1);
2025 rt2661_rf_write(sc, RAL_RF4, rfprog[i].r4 | sc->rffreq << 10);
2029 rt2661_rf_write(sc, RAL_RF1, rfprog[i].r1);
2030 rt2661_rf_write(sc, RAL_RF2, rfprog[i].r2);
2031 rt2661_rf_write(sc, RAL_RF3, rfprog[i].r3 | power << 7);
2032 rt2661_rf_write(sc, RAL_RF4, rfprog[i].r4 | sc->rffreq << 10);
2034 /* enable smart mode for MIMO-capable RFs */
2035 bbp3 = rt2661_bbp_read(sc, 3);
2037 bbp3 &= ~RT2661_SMART_MODE;
2038 if (sc->rf_rev == RT2661_RF_5325 || sc->rf_rev == RT2661_RF_2529)
2039 bbp3 |= RT2661_SMART_MODE;
2041 rt2661_bbp_write(sc, 3, bbp3);
2043 if (bbp94 != RT2661_BBPR94_DEFAULT)
2044 rt2661_bbp_write(sc, 94, bbp94);
2046 /* 5GHz radio needs a 1ms delay here */
2047 if (IEEE80211_IS_CHAN_5GHZ(c))
2052 rt2661_set_bssid(struct rt2661_softc *sc, const uint8_t *bssid)
2056 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2057 RAL_WRITE(sc, RT2661_MAC_CSR4, tmp);
2059 tmp = bssid[4] | bssid[5] << 8 | RT2661_ONE_BSSID << 16;
2060 RAL_WRITE(sc, RT2661_MAC_CSR5, tmp);
2064 rt2661_set_macaddr(struct rt2661_softc *sc, const uint8_t *addr)
2068 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2069 RAL_WRITE(sc, RT2661_MAC_CSR2, tmp);
2071 tmp = addr[4] | addr[5] << 8;
2072 RAL_WRITE(sc, RT2661_MAC_CSR3, tmp);
2076 rt2661_update_promisc(struct ifnet *ifp)
2078 struct rt2661_softc *sc = ifp->if_softc;
2081 tmp = RAL_READ(sc, RT2661_TXRX_CSR0);
2083 tmp &= ~RT2661_DROP_NOT_TO_ME;
2084 if (!(ifp->if_flags & IFF_PROMISC))
2085 tmp |= RT2661_DROP_NOT_TO_ME;
2087 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp);
2089 DPRINTF(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
2090 "entering" : "leaving");
2094 * Update QoS (802.11e) settings for each h/w Tx ring.
2097 rt2661_wme_update(struct ieee80211com *ic)
2099 struct rt2661_softc *sc = ic->ic_ifp->if_softc;
2100 const struct wmeParams *wmep;
2102 wmep = ic->ic_wme.wme_chanParams.cap_wmeParams;
2104 /* XXX: not sure about shifts. */
2105 /* XXX: the reference driver plays with AC_VI settings too. */
2108 RAL_WRITE(sc, RT2661_AC_TXOP_CSR0,
2109 wmep[WME_AC_BE].wmep_txopLimit << 16 |
2110 wmep[WME_AC_BK].wmep_txopLimit);
2111 RAL_WRITE(sc, RT2661_AC_TXOP_CSR1,
2112 wmep[WME_AC_VI].wmep_txopLimit << 16 |
2113 wmep[WME_AC_VO].wmep_txopLimit);
2116 RAL_WRITE(sc, RT2661_CWMIN_CSR,
2117 wmep[WME_AC_BE].wmep_logcwmin << 12 |
2118 wmep[WME_AC_BK].wmep_logcwmin << 8 |
2119 wmep[WME_AC_VI].wmep_logcwmin << 4 |
2120 wmep[WME_AC_VO].wmep_logcwmin);
2123 RAL_WRITE(sc, RT2661_CWMAX_CSR,
2124 wmep[WME_AC_BE].wmep_logcwmax << 12 |
2125 wmep[WME_AC_BK].wmep_logcwmax << 8 |
2126 wmep[WME_AC_VI].wmep_logcwmax << 4 |
2127 wmep[WME_AC_VO].wmep_logcwmax);
2130 RAL_WRITE(sc, RT2661_AIFSN_CSR,
2131 wmep[WME_AC_BE].wmep_aifsn << 12 |
2132 wmep[WME_AC_BK].wmep_aifsn << 8 |
2133 wmep[WME_AC_VI].wmep_aifsn << 4 |
2134 wmep[WME_AC_VO].wmep_aifsn);
2140 rt2661_update_slot(struct ifnet *ifp)
2142 struct rt2661_softc *sc = ifp->if_softc;
2143 struct ieee80211com *ic = ifp->if_l2com;
2147 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
2149 tmp = RAL_READ(sc, RT2661_MAC_CSR9);
2150 tmp = (tmp & ~0xff) | slottime;
2151 RAL_WRITE(sc, RT2661_MAC_CSR9, tmp);
2155 rt2661_get_rf(int rev)
2158 case RT2661_RF_5225: return "RT5225";
2159 case RT2661_RF_5325: return "RT5325 (MIMO XR)";
2160 case RT2661_RF_2527: return "RT2527";
2161 case RT2661_RF_2529: return "RT2529 (MIMO XR)";
2162 default: return "unknown";
2167 rt2661_read_eeprom(struct rt2661_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN])
2172 /* read MAC address */
2173 val = rt2661_eeprom_read(sc, RT2661_EEPROM_MAC01);
2174 macaddr[0] = val & 0xff;
2175 macaddr[1] = val >> 8;
2177 val = rt2661_eeprom_read(sc, RT2661_EEPROM_MAC23);
2178 macaddr[2] = val & 0xff;
2179 macaddr[3] = val >> 8;
2181 val = rt2661_eeprom_read(sc, RT2661_EEPROM_MAC45);
2182 macaddr[4] = val & 0xff;
2183 macaddr[5] = val >> 8;
2185 val = rt2661_eeprom_read(sc, RT2661_EEPROM_ANTENNA);
2186 /* XXX: test if different from 0xffff? */
2187 sc->rf_rev = (val >> 11) & 0x1f;
2188 sc->hw_radio = (val >> 10) & 0x1;
2189 sc->rx_ant = (val >> 4) & 0x3;
2190 sc->tx_ant = (val >> 2) & 0x3;
2191 sc->nb_ant = val & 0x3;
2193 DPRINTF(sc, "RF revision=%d\n", sc->rf_rev);
2195 val = rt2661_eeprom_read(sc, RT2661_EEPROM_CONFIG2);
2196 sc->ext_5ghz_lna = (val >> 6) & 0x1;
2197 sc->ext_2ghz_lna = (val >> 4) & 0x1;
2199 DPRINTF(sc, "External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2200 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2202 val = rt2661_eeprom_read(sc, RT2661_EEPROM_RSSI_2GHZ_OFFSET);
2203 if ((val & 0xff) != 0xff)
2204 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
2206 /* Only [-10, 10] is valid */
2207 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2208 sc->rssi_2ghz_corr = 0;
2210 val = rt2661_eeprom_read(sc, RT2661_EEPROM_RSSI_5GHZ_OFFSET);
2211 if ((val & 0xff) != 0xff)
2212 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
2214 /* Only [-10, 10] is valid */
2215 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2216 sc->rssi_5ghz_corr = 0;
2218 /* adjust RSSI correction for external low-noise amplifier */
2219 if (sc->ext_2ghz_lna)
2220 sc->rssi_2ghz_corr -= 14;
2221 if (sc->ext_5ghz_lna)
2222 sc->rssi_5ghz_corr -= 14;
2224 DPRINTF(sc, "RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2225 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2227 val = rt2661_eeprom_read(sc, RT2661_EEPROM_FREQ_OFFSET);
2228 if ((val >> 8) != 0xff)
2229 sc->rfprog = (val >> 8) & 0x3;
2230 if ((val & 0xff) != 0xff)
2231 sc->rffreq = val & 0xff;
2233 DPRINTF(sc, "RF prog=%d\nRF freq=%d\n", sc->rfprog, sc->rffreq);
2235 /* read Tx power for all a/b/g channels */
2236 for (i = 0; i < 19; i++) {
2237 val = rt2661_eeprom_read(sc, RT2661_EEPROM_TXPOWER + i);
2238 sc->txpow[i * 2] = (int8_t)(val >> 8); /* signed */
2239 DPRINTF(sc, "Channel=%d Tx power=%d\n",
2240 rt2661_rf5225_1[i * 2].chan, sc->txpow[i * 2]);
2241 sc->txpow[i * 2 + 1] = (int8_t)(val & 0xff); /* signed */
2242 DPRINTF(sc, "Channel=%d Tx power=%d\n",
2243 rt2661_rf5225_1[i * 2 + 1].chan, sc->txpow[i * 2 + 1]);
2246 /* read vendor-specific BBP values */
2247 for (i = 0; i < 16; i++) {
2248 val = rt2661_eeprom_read(sc, RT2661_EEPROM_BBP_BASE + i);
2249 if (val == 0 || val == 0xffff)
2250 continue; /* skip invalid entries */
2251 sc->bbp_prom[i].reg = val >> 8;
2252 sc->bbp_prom[i].val = val & 0xff;
2253 DPRINTF(sc, "BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2254 sc->bbp_prom[i].val);
2259 rt2661_bbp_init(struct rt2661_softc *sc)
2261 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2265 /* wait for BBP to be ready */
2266 for (ntries = 0; ntries < 100; ntries++) {
2267 val = rt2661_bbp_read(sc, 0);
2268 if (val != 0 && val != 0xff)
2272 if (ntries == 100) {
2273 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2277 /* initialize BBP registers to default values */
2278 for (i = 0; i < N(rt2661_def_bbp); i++) {
2279 rt2661_bbp_write(sc, rt2661_def_bbp[i].reg,
2280 rt2661_def_bbp[i].val);
2283 /* write vendor-specific BBP values (from EEPROM) */
2284 for (i = 0; i < 16; i++) {
2285 if (sc->bbp_prom[i].reg == 0)
2287 rt2661_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2295 rt2661_init_locked(struct rt2661_softc *sc)
2297 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2298 struct ifnet *ifp = sc->sc_ifp;
2299 struct ieee80211com *ic = ifp->if_l2com;
2300 uint32_t tmp, sta[3];
2301 int i, error, ntries;
2303 if ((sc->sc_flags & RAL_FW_LOADED) == 0) {
2304 error = rt2661_load_microcode(sc);
2307 "%s: could not load 8051 microcode, error %d\n",
2311 sc->sc_flags |= RAL_FW_LOADED;
2314 rt2661_stop_locked(sc);
2316 /* initialize Tx rings */
2317 RAL_WRITE(sc, RT2661_AC1_BASE_CSR, sc->txq[1].physaddr);
2318 RAL_WRITE(sc, RT2661_AC0_BASE_CSR, sc->txq[0].physaddr);
2319 RAL_WRITE(sc, RT2661_AC2_BASE_CSR, sc->txq[2].physaddr);
2320 RAL_WRITE(sc, RT2661_AC3_BASE_CSR, sc->txq[3].physaddr);
2322 /* initialize Mgt ring */
2323 RAL_WRITE(sc, RT2661_MGT_BASE_CSR, sc->mgtq.physaddr);
2325 /* initialize Rx ring */
2326 RAL_WRITE(sc, RT2661_RX_BASE_CSR, sc->rxq.physaddr);
2328 /* initialize Tx rings sizes */
2329 RAL_WRITE(sc, RT2661_TX_RING_CSR0,
2330 RT2661_TX_RING_COUNT << 24 |
2331 RT2661_TX_RING_COUNT << 16 |
2332 RT2661_TX_RING_COUNT << 8 |
2333 RT2661_TX_RING_COUNT);
2335 RAL_WRITE(sc, RT2661_TX_RING_CSR1,
2336 RT2661_TX_DESC_WSIZE << 16 |
2337 RT2661_TX_RING_COUNT << 8 | /* XXX: HCCA ring unused */
2338 RT2661_MGT_RING_COUNT);
2340 /* initialize Rx rings */
2341 RAL_WRITE(sc, RT2661_RX_RING_CSR,
2342 RT2661_RX_DESC_BACK << 16 |
2343 RT2661_RX_DESC_WSIZE << 8 |
2344 RT2661_RX_RING_COUNT);
2346 /* XXX: some magic here */
2347 RAL_WRITE(sc, RT2661_TX_DMA_DST_CSR, 0xaa);
2349 /* load base addresses of all 5 Tx rings (4 data + 1 mgt) */
2350 RAL_WRITE(sc, RT2661_LOAD_TX_RING_CSR, 0x1f);
2352 /* load base address of Rx ring */
2353 RAL_WRITE(sc, RT2661_RX_CNTL_CSR, 2);
2355 /* initialize MAC registers to default values */
2356 for (i = 0; i < N(rt2661_def_mac); i++)
2357 RAL_WRITE(sc, rt2661_def_mac[i].reg, rt2661_def_mac[i].val);
2359 rt2661_set_macaddr(sc, IF_LLADDR(ifp));
2361 /* set host ready */
2362 RAL_WRITE(sc, RT2661_MAC_CSR1, 3);
2363 RAL_WRITE(sc, RT2661_MAC_CSR1, 0);
2365 /* wait for BBP/RF to wakeup */
2366 for (ntries = 0; ntries < 1000; ntries++) {
2367 if (RAL_READ(sc, RT2661_MAC_CSR12) & 8)
2371 if (ntries == 1000) {
2372 kprintf("timeout waiting for BBP/RF to wakeup\n");
2373 rt2661_stop_locked(sc);
2377 if (rt2661_bbp_init(sc) != 0) {
2378 rt2661_stop_locked(sc);
2382 /* select default channel */
2383 sc->sc_curchan = ic->ic_curchan;
2384 rt2661_select_band(sc, sc->sc_curchan);
2385 rt2661_select_antenna(sc);
2386 rt2661_set_chan(sc, sc->sc_curchan);
2388 /* update Rx filter */
2389 tmp = RAL_READ(sc, RT2661_TXRX_CSR0) & 0xffff;
2391 tmp |= RT2661_DROP_PHY_ERROR | RT2661_DROP_CRC_ERROR;
2392 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2393 tmp |= RT2661_DROP_CTL | RT2661_DROP_VER_ERROR |
2395 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2396 ic->ic_opmode != IEEE80211_M_MBSS)
2397 tmp |= RT2661_DROP_TODS;
2398 if (!(ifp->if_flags & IFF_PROMISC))
2399 tmp |= RT2661_DROP_NOT_TO_ME;
2402 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp);
2404 /* clear STA registers */
2405 RAL_READ_REGION_4(sc, RT2661_STA_CSR0, sta, N(sta));
2407 /* initialize ASIC */
2408 RAL_WRITE(sc, RT2661_MAC_CSR1, 4);
2410 /* clear any pending interrupt */
2411 RAL_WRITE(sc, RT2661_INT_SOURCE_CSR, 0xffffffff);
2413 /* enable interrupts */
2414 RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0x0000ff10);
2415 RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0);
2418 RAL_WRITE(sc, RT2661_RX_CNTL_CSR, 1);
2420 ifp->if_flags &= ~IFF_OACTIVE;
2421 ifp->if_flags |= IFF_RUNNING;
2423 callout_reset(&sc->watchdog_ch, hz, rt2661_watchdog_callout, sc);
2428 rt2661_init(void *priv)
2430 struct rt2661_softc *sc = priv;
2431 struct ifnet *ifp = sc->sc_ifp;
2432 struct ieee80211com *ic = ifp->if_l2com;
2434 rt2661_init_locked(sc);
2436 if (ifp->if_flags & IFF_RUNNING)
2437 ieee80211_start_all(ic); /* start all vap's */
2441 rt2661_stop_locked(struct rt2661_softc *sc)
2443 struct ifnet *ifp = sc->sc_ifp;
2445 volatile int *flags = &sc->sc_flags;
2447 while (*flags & RAL_INPUT_RUNNING)
2448 zsleep(sc, &wlan_global_serializer, 0, "ralrunning", hz/10);
2450 callout_stop(&sc->watchdog_ch);
2451 sc->sc_tx_timer = 0;
2453 if (ifp->if_flags & IFF_RUNNING) {
2454 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
2456 /* abort Tx (for all 5 Tx rings) */
2457 RAL_WRITE(sc, RT2661_TX_CNTL_CSR, 0x1f << 16);
2459 /* disable Rx (value remains after reset!) */
2460 tmp = RAL_READ(sc, RT2661_TXRX_CSR0);
2461 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp | RT2661_DISABLE_RX);
2464 RAL_WRITE(sc, RT2661_MAC_CSR1, 3);
2465 RAL_WRITE(sc, RT2661_MAC_CSR1, 0);
2467 /* disable interrupts */
2468 RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0xffffffff);
2469 RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0xffffffff);
2471 /* clear any pending interrupt */
2472 RAL_WRITE(sc, RT2661_INT_SOURCE_CSR, 0xffffffff);
2473 RAL_WRITE(sc, RT2661_MCU_INT_SOURCE_CSR, 0xffffffff);
2475 /* reset Tx and Rx rings */
2476 rt2661_reset_tx_ring(sc, &sc->txq[0]);
2477 rt2661_reset_tx_ring(sc, &sc->txq[1]);
2478 rt2661_reset_tx_ring(sc, &sc->txq[2]);
2479 rt2661_reset_tx_ring(sc, &sc->txq[3]);
2480 rt2661_reset_tx_ring(sc, &sc->mgtq);
2481 rt2661_reset_rx_ring(sc, &sc->rxq);
2486 rt2661_stop(void *priv)
2488 struct rt2661_softc *sc = priv;
2490 rt2661_stop_locked(sc);
2494 rt2661_load_microcode(struct rt2661_softc *sc)
2496 struct ifnet *ifp = sc->sc_ifp;
2497 const struct firmware *fp;
2498 const char *imagename;
2501 switch (sc->sc_id) {
2502 case 0x0301: imagename = "rt2561sfw"; break;
2503 case 0x0302: imagename = "rt2561fw"; break;
2504 case 0x0401: imagename = "rt2661fw"; break;
2506 if_printf(ifp, "%s: unexpected pci device id 0x%x, "
2507 "don't know how to retrieve firmware\n",
2508 __func__, sc->sc_id);
2511 fp = firmware_get(imagename);
2513 if_printf(ifp, "%s: unable to retrieve firmware image %s\n",
2514 __func__, imagename);
2519 * Load 8051 microcode into NIC.
2522 RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, RT2661_MCU_RESET);
2524 /* cancel any pending Host to MCU command */
2525 RAL_WRITE(sc, RT2661_H2M_MAILBOX_CSR, 0);
2526 RAL_WRITE(sc, RT2661_M2H_CMD_DONE_CSR, 0xffffffff);
2527 RAL_WRITE(sc, RT2661_HOST_CMD_CSR, 0);
2529 /* write 8051's microcode */
2530 RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, RT2661_MCU_RESET | RT2661_MCU_SEL);
2531 RAL_WRITE_REGION_1(sc, RT2661_MCU_CODE_BASE, fp->data, fp->datasize);
2532 RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, RT2661_MCU_RESET);
2534 /* kick 8051's ass */
2535 RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, 0);
2537 /* wait for 8051 to initialize */
2538 for (ntries = 0; ntries < 500; ntries++) {
2539 if (RAL_READ(sc, RT2661_MCU_CNTL_CSR) & RT2661_MCU_READY)
2543 if (ntries == 500) {
2544 if_printf(ifp, "%s: timeout waiting for MCU to initialize\n",
2550 firmware_put(fp, FIRMWARE_UNLOAD);
2556 * Dynamically tune Rx sensitivity (BBP register 17) based on average RSSI and
2557 * false CCA count. This function is called periodically (every seconds) when
2558 * in the RUN state. Values taken from the reference driver.
2561 rt2661_rx_tune(struct rt2661_softc *sc)
2568 * Tuning range depends on operating band and on the presence of an
2569 * external low-noise amplifier.
2572 if (IEEE80211_IS_CHAN_5GHZ(sc->sc_curchan))
2574 if ((IEEE80211_IS_CHAN_2GHZ(sc->sc_curchan) && sc->ext_2ghz_lna) ||
2575 (IEEE80211_IS_CHAN_5GHZ(sc->sc_curchan) && sc->ext_5ghz_lna))
2579 /* retrieve false CCA count since last call (clear on read) */
2580 cca = RAL_READ(sc, RT2661_STA_CSR1) & 0xffff;
2584 } else if (dbm >= -58) {
2586 } else if (dbm >= -66) {
2588 } else if (dbm >= -74) {
2591 /* RSSI < -74dBm, tune using false CCA count */
2593 bbp17 = sc->bbp17; /* current value */
2595 hi -= 2 * (-74 - dbm);
2602 } else if (cca > 512) {
2605 } else if (cca < 100) {
2611 if (bbp17 != sc->bbp17) {
2612 rt2661_bbp_write(sc, 17, bbp17);
2618 * Enter/Leave radar detection mode.
2619 * This is for 802.11h additional regulatory domains.
2622 rt2661_radar_start(struct rt2661_softc *sc)
2627 tmp = RAL_READ(sc, RT2661_TXRX_CSR0);
2628 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp | RT2661_DISABLE_RX);
2630 rt2661_bbp_write(sc, 82, 0x20);
2631 rt2661_bbp_write(sc, 83, 0x00);
2632 rt2661_bbp_write(sc, 84, 0x40);
2634 /* save current BBP registers values */
2635 sc->bbp18 = rt2661_bbp_read(sc, 18);
2636 sc->bbp21 = rt2661_bbp_read(sc, 21);
2637 sc->bbp22 = rt2661_bbp_read(sc, 22);
2638 sc->bbp16 = rt2661_bbp_read(sc, 16);
2639 sc->bbp17 = rt2661_bbp_read(sc, 17);
2640 sc->bbp64 = rt2661_bbp_read(sc, 64);
2642 rt2661_bbp_write(sc, 18, 0xff);
2643 rt2661_bbp_write(sc, 21, 0x3f);
2644 rt2661_bbp_write(sc, 22, 0x3f);
2645 rt2661_bbp_write(sc, 16, 0xbd);
2646 rt2661_bbp_write(sc, 17, sc->ext_5ghz_lna ? 0x44 : 0x34);
2647 rt2661_bbp_write(sc, 64, 0x21);
2649 /* restore Rx filter */
2650 RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp);
2654 rt2661_radar_stop(struct rt2661_softc *sc)
2658 /* read radar detection result */
2659 bbp66 = rt2661_bbp_read(sc, 66);
2661 /* restore BBP registers values */
2662 rt2661_bbp_write(sc, 16, sc->bbp16);
2663 rt2661_bbp_write(sc, 17, sc->bbp17);
2664 rt2661_bbp_write(sc, 18, sc->bbp18);
2665 rt2661_bbp_write(sc, 21, sc->bbp21);
2666 rt2661_bbp_write(sc, 22, sc->bbp22);
2667 rt2661_bbp_write(sc, 64, sc->bbp64);
2674 rt2661_prepare_beacon(struct rt2661_softc *sc, struct ieee80211vap *vap)
2676 struct ieee80211com *ic = vap->iv_ic;
2677 struct ieee80211_beacon_offsets bo;
2678 struct rt2661_tx_desc desc;
2682 m0 = ieee80211_beacon_alloc(vap->iv_bss, &bo);
2684 device_printf(sc->sc_dev, "could not allocate beacon frame\n");
2688 /* send beacons at the lowest available rate */
2689 rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan) ? 12 : 2;
2691 rt2661_setup_tx_desc(sc, &desc, RT2661_TX_TIMESTAMP, RT2661_TX_HWSEQ,
2692 m0->m_pkthdr.len, rate, NULL, 0, RT2661_QID_MGT);
2694 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2695 RAL_WRITE_REGION_1(sc, RT2661_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2697 /* copy beacon header and payload into NIC memory */
2698 RAL_WRITE_REGION_1(sc, RT2661_HW_BEACON_BASE0 + 24,
2699 mtod(m0, uint8_t *), m0->m_pkthdr.len);
2707 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2708 * and HostAP operating modes.
2711 rt2661_enable_tsf_sync(struct rt2661_softc *sc)
2713 struct ifnet *ifp = sc->sc_ifp;
2714 struct ieee80211com *ic = ifp->if_l2com;
2715 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2718 if (vap->iv_opmode != IEEE80211_M_STA) {
2720 * Change default 16ms TBTT adjustment to 8ms.
2721 * Must be done before enabling beacon generation.
2723 RAL_WRITE(sc, RT2661_TXRX_CSR10, 1 << 12 | 8);
2726 tmp = RAL_READ(sc, RT2661_TXRX_CSR9) & 0xff000000;
2728 /* set beacon interval (in 1/16ms unit) */
2729 tmp |= vap->iv_bss->ni_intval * 16;
2731 tmp |= RT2661_TSF_TICKING | RT2661_ENABLE_TBTT;
2732 if (vap->iv_opmode == IEEE80211_M_STA)
2733 tmp |= RT2661_TSF_MODE(1);
2735 tmp |= RT2661_TSF_MODE(2) | RT2661_GENERATE_BEACON;
2737 RAL_WRITE(sc, RT2661_TXRX_CSR9, tmp);
2741 rt2661_enable_tsf(struct rt2661_softc *sc)
2743 RAL_WRITE(sc, RT2661_TXRX_CSR9,
2744 (RAL_READ(sc, RT2661_TXRX_CSR9) & 0xff000000)
2745 | RT2661_TSF_TICKING | RT2661_TSF_MODE(2));
2749 * Retrieve the "Received Signal Strength Indicator" from the raw values
2750 * contained in Rx descriptors. The computation depends on which band the
2751 * frame was received. Correction values taken from the reference driver.
2754 rt2661_get_rssi(struct rt2661_softc *sc, uint8_t raw)
2758 lna = (raw >> 5) & 0x3;
2763 * No mapping available.
2765 * NB: Since RSSI is relative to noise floor, -1 is
2766 * adequate for caller to know error happened.
2771 rssi = (2 * agc) - RT2661_NOISE_FLOOR;
2773 if (IEEE80211_IS_CHAN_2GHZ(sc->sc_curchan)) {
2774 rssi += sc->rssi_2ghz_corr;
2783 rssi += sc->rssi_5ghz_corr;
2796 rt2661_scan_start(struct ieee80211com *ic)
2798 struct ifnet *ifp = ic->ic_ifp;
2799 struct rt2661_softc *sc = ifp->if_softc;
2802 /* abort TSF synchronization */
2803 tmp = RAL_READ(sc, RT2661_TXRX_CSR9);
2804 RAL_WRITE(sc, RT2661_TXRX_CSR9, tmp & ~0xffffff);
2805 rt2661_set_bssid(sc, ifp->if_broadcastaddr);
2809 rt2661_scan_end(struct ieee80211com *ic)
2811 struct ifnet *ifp = ic->ic_ifp;
2812 struct rt2661_softc *sc = ifp->if_softc;
2813 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2815 rt2661_enable_tsf_sync(sc);
2816 /* XXX keep local copy */
2817 rt2661_set_bssid(sc, vap->iv_bss->ni_bssid);
2821 rt2661_set_channel(struct ieee80211com *ic)
2823 struct ifnet *ifp = ic->ic_ifp;
2824 struct rt2661_softc *sc = ifp->if_softc;
2826 rt2661_set_chan(sc, ic->ic_curchan);