1 /* $FreeBSD: head/sys/dev/ral/rt2560.c 195618 2009-07-11 15:02:45Z rpaulo $ */
4 * Copyright (c) 2005, 2006
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/rt2560.c 195618 2009-07-11 15:02:45Z rpaulo $
24 * Ralink Technology RT2560 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>
45 #include <net/if_arp.h>
46 #include <net/ethernet.h>
47 #include <net/if_dl.h>
48 #include <net/if_media.h>
49 #include <net/if_types.h>
50 #include <net/ifq_var.h>
52 #include <netproto/802_11/ieee80211_var.h>
53 #include <netproto/802_11/ieee80211_radiotap.h>
54 #include <netproto/802_11/ieee80211_regdomain.h>
55 #include <netproto/802_11/ieee80211_ratectl.h>
57 #include <netinet/in.h>
58 #include <netinet/in_systm.h>
59 #include <netinet/in_var.h>
60 #include <netinet/ip.h>
61 #include <netinet/if_ether.h>
63 #include <dev/netif/ral/rt2560reg.h>
64 #include <dev/netif/ral/rt2560var.h>
66 #define RT2560_RSSI(sc, rssi) \
67 ((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \
68 ((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0)
72 #define DPRINTF(sc, fmt, ...) do { \
73 if (sc->sc_debug > 0) \
74 kprintf(fmt, __VA_ARGS__); \
76 #define DPRINTFN(sc, n, fmt, ...) do { \
77 if (sc->sc_debug >= (n)) \
78 kprintf(fmt, __VA_ARGS__); \
81 #define DPRINTF(sc, fmt, ...)
82 #define DPRINTFN(sc, n, fmt, ...)
85 static struct ieee80211vap *rt2560_vap_create(struct ieee80211com *,
86 const char name[IFNAMSIZ], int unit, int opmode,
87 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
88 const uint8_t mac[IEEE80211_ADDR_LEN]);
89 static void rt2560_vap_delete(struct ieee80211vap *);
90 static void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int,
92 static int rt2560_alloc_tx_ring(struct rt2560_softc *,
93 struct rt2560_tx_ring *, int);
94 static void rt2560_reset_tx_ring(struct rt2560_softc *,
95 struct rt2560_tx_ring *);
96 static void rt2560_free_tx_ring(struct rt2560_softc *,
97 struct rt2560_tx_ring *);
98 static int rt2560_alloc_rx_ring(struct rt2560_softc *,
99 struct rt2560_rx_ring *, int);
100 static void rt2560_reset_rx_ring(struct rt2560_softc *,
101 struct rt2560_rx_ring *);
102 static void rt2560_free_rx_ring(struct rt2560_softc *,
103 struct rt2560_rx_ring *);
104 static int rt2560_newstate(struct ieee80211vap *,
105 enum ieee80211_state, int);
106 static uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
107 static void rt2560_encryption_intr(struct rt2560_softc *);
108 static void rt2560_tx_intr(struct rt2560_softc *);
109 static void rt2560_prio_intr(struct rt2560_softc *);
110 static void rt2560_decryption_intr(struct rt2560_softc *);
111 static void rt2560_rx_intr(struct rt2560_softc *);
112 static void rt2560_beacon_update(struct ieee80211vap *, int item);
113 static void rt2560_beacon_expire(struct rt2560_softc *);
114 static void rt2560_wakeup_expire(struct rt2560_softc *);
115 static void rt2560_scan_start(struct ieee80211com *);
116 static void rt2560_scan_end(struct ieee80211com *);
117 static void rt2560_set_channel(struct ieee80211com *);
118 static void rt2560_setup_tx_desc(struct rt2560_softc *,
119 struct rt2560_tx_desc *, uint32_t, int, int, int,
121 static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
122 struct ieee80211_node *);
123 static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
124 struct ieee80211_node *);
125 static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
126 struct ieee80211_node *);
127 static void rt2560_start_locked(struct ifnet *);
128 static void rt2560_start(struct ifnet *);
129 static void rt2560_watchdog_callout(void *);
130 static int rt2560_ioctl(struct ifnet *, u_long, caddr_t,
132 static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
134 static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
135 static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
137 static void rt2560_set_chan(struct rt2560_softc *,
138 struct ieee80211_channel *);
140 static void rt2560_disable_rf_tune(struct rt2560_softc *);
142 static void rt2560_enable_tsf_sync(struct rt2560_softc *);
143 static void rt2560_enable_tsf(struct rt2560_softc *);
144 static void rt2560_update_plcp(struct rt2560_softc *);
145 static void rt2560_update_slot(struct ifnet *);
146 static void rt2560_set_basicrates(struct rt2560_softc *);
147 static void rt2560_update_led(struct rt2560_softc *, int, int);
148 static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
149 static void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
150 static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
151 static void rt2560_update_promisc(struct ifnet *);
152 static const char *rt2560_get_rf(int);
153 static void rt2560_read_config(struct rt2560_softc *);
154 static int rt2560_bbp_init(struct rt2560_softc *);
155 static void rt2560_set_txantenna(struct rt2560_softc *, int);
156 static void rt2560_set_rxantenna(struct rt2560_softc *, int);
157 static void rt2560_init_locked(struct rt2560_softc *);
158 static void rt2560_init(void *);
159 static void rt2560_stop_locked(struct rt2560_softc *);
160 static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
161 const struct ieee80211_bpf_params *);
163 static const struct {
166 } rt2560_def_mac[] = {
170 static const struct {
173 } rt2560_def_bbp[] = {
177 static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
178 static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
179 static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
180 static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
181 static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
182 static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
183 static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
184 static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
186 static const struct {
189 } rt2560_rf5222[] = {
194 rt2560_attach(device_t dev, int id)
196 struct rt2560_softc *sc = device_get_softc(dev);
197 struct ieee80211com *ic;
201 uint8_t macaddr[IEEE80211_ADDR_LEN];
202 struct sysctl_ctx_list *ctx;
203 struct sysctl_oid *tree;
207 callout_init(&sc->watchdog_ch);
209 /* retrieve RT2560 rev. no */
210 sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
212 /* retrieve RF rev. no and various other things from EEPROM */
213 rt2560_read_config(sc);
215 device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
216 sc->asic_rev, rt2560_get_rf(sc->rf_rev));
219 * Allocate Tx and Rx rings.
221 error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
223 device_printf(sc->sc_dev, "could not allocate Tx ring\n");
227 error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
229 device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
233 error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
235 device_printf(sc->sc_dev, "could not allocate Prio ring\n");
239 error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
241 device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
245 error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
247 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
251 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
253 device_printf(sc->sc_dev, "can not if_alloc()\n");
258 /* retrieve MAC address */
259 rt2560_get_macaddr(sc, macaddr);
262 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
263 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
264 ifp->if_init = rt2560_init;
265 ifp->if_ioctl = rt2560_ioctl;
266 ifp->if_start = rt2560_start;
267 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
268 ifq_set_ready(&ifp->if_snd);
271 ic->ic_opmode = IEEE80211_M_STA;
272 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
274 /* set device capabilities */
276 IEEE80211_C_STA /* station mode */
277 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
278 | IEEE80211_C_HOSTAP /* hostap mode */
279 | IEEE80211_C_MONITOR /* monitor mode */
280 | IEEE80211_C_AHDEMO /* adhoc demo mode */
281 | IEEE80211_C_WDS /* 4-address traffic works */
282 | IEEE80211_C_MBSS /* mesh point link mode */
283 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
284 | IEEE80211_C_SHSLOT /* short slot time supported */
285 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
286 | IEEE80211_C_BGSCAN /* capable of bg scanning */
288 | IEEE80211_C_TXFRAG /* handle tx frags */
293 setbit(&bands, IEEE80211_MODE_11B);
294 setbit(&bands, IEEE80211_MODE_11G);
295 if (sc->rf_rev == RT2560_RF_5222)
296 setbit(&bands, IEEE80211_MODE_11A);
297 ieee80211_init_channels(ic, NULL, &bands);
299 ieee80211_ifattach(ic, macaddr);
300 ic->ic_raw_xmit = rt2560_raw_xmit;
301 ic->ic_updateslot = rt2560_update_slot;
302 ic->ic_update_promisc = rt2560_update_promisc;
303 ic->ic_scan_start = rt2560_scan_start;
304 ic->ic_scan_end = rt2560_scan_end;
305 ic->ic_set_channel = rt2560_set_channel;
307 ic->ic_vap_create = rt2560_vap_create;
308 ic->ic_vap_delete = rt2560_vap_delete;
310 ieee80211_radiotap_attach(ic,
311 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
312 RT2560_TX_RADIOTAP_PRESENT,
313 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
314 RT2560_RX_RADIOTAP_PRESENT);
317 * Add a few sysctl knobs.
319 ctx = &sc->sc_sysctl_ctx;
320 sysctl_ctx_init(ctx);
321 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
323 device_get_nameunit(sc->sc_dev),
326 device_printf(sc->sc_dev, "can't add sysctl node\n");
331 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
332 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
334 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
335 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
337 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
338 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
341 ieee80211_announce(ic);
345 fail6: rt2560_free_rx_ring(sc, &sc->rxq);
346 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
347 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
348 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
349 fail2: rt2560_free_tx_ring(sc, &sc->txq);
356 rt2560_detach(void *xsc)
358 struct rt2560_softc *sc = xsc;
359 struct ifnet *ifp = sc->sc_ifp;
360 struct ieee80211com *ic = ifp->if_l2com;
364 ieee80211_ifdetach(ic);
366 rt2560_free_tx_ring(sc, &sc->txq);
367 rt2560_free_tx_ring(sc, &sc->atimq);
368 rt2560_free_tx_ring(sc, &sc->prioq);
369 rt2560_free_tx_ring(sc, &sc->bcnq);
370 rt2560_free_rx_ring(sc, &sc->rxq);
377 static struct ieee80211vap *
378 rt2560_vap_create(struct ieee80211com *ic,
379 const char name[IFNAMSIZ], int unit, int opmode, int flags,
380 const uint8_t bssid[IEEE80211_ADDR_LEN],
381 const uint8_t mac[IEEE80211_ADDR_LEN])
383 struct ifnet *ifp = ic->ic_ifp;
384 struct rt2560_vap *rvp;
385 struct ieee80211vap *vap;
388 case IEEE80211_M_STA:
389 case IEEE80211_M_IBSS:
390 case IEEE80211_M_AHDEMO:
391 case IEEE80211_M_MONITOR:
392 case IEEE80211_M_HOSTAP:
393 case IEEE80211_M_MBSS:
395 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
396 if_printf(ifp, "only 1 vap supported\n");
399 if (opmode == IEEE80211_M_STA)
400 flags |= IEEE80211_CLONE_NOBEACONS;
402 case IEEE80211_M_WDS:
403 if (TAILQ_EMPTY(&ic->ic_vaps) ||
404 ic->ic_opmode != IEEE80211_M_HOSTAP) {
405 if_printf(ifp, "wds only supported in ap mode\n");
409 * Silently remove any request for a unique
410 * bssid; WDS vap's always share the local
413 flags &= ~IEEE80211_CLONE_BSSID;
416 if_printf(ifp, "unknown opmode %d\n", opmode);
419 rvp = (struct rt2560_vap *) kmalloc(sizeof(struct rt2560_vap),
420 M_80211_VAP, M_INTWAIT | M_ZERO);
424 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
426 /* override state transition machine */
427 rvp->ral_newstate = vap->iv_newstate;
428 vap->iv_newstate = rt2560_newstate;
429 vap->iv_update_beacon = rt2560_beacon_update;
431 ieee80211_ratectl_init(vap);
433 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
434 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
435 ic->ic_opmode = opmode;
440 rt2560_vap_delete(struct ieee80211vap *vap)
442 struct rt2560_vap *rvp = RT2560_VAP(vap);
444 ieee80211_ratectl_deinit(vap);
445 ieee80211_vap_detach(vap);
446 kfree(rvp, M_80211_VAP);
450 rt2560_resume(void *xsc)
452 struct rt2560_softc *sc = xsc;
453 struct ifnet *ifp = sc->sc_ifp;
455 if (ifp->if_flags & IFF_UP)
460 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
465 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
467 *(bus_addr_t *)arg = segs[0].ds_addr;
471 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
478 ring->cur = ring->next = 0;
479 ring->cur_encrypt = ring->next_encrypt = 0;
481 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
482 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
483 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
484 0, &ring->desc_dmat);
486 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
490 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
491 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
493 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
497 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
498 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
501 device_printf(sc->sc_dev, "could not load desc DMA map\n");
505 ring->data = kmalloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
507 if (ring->data == NULL) {
508 device_printf(sc->sc_dev, "could not allocate soft data\n");
513 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
514 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
515 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, &ring->data_dmat);
517 device_printf(sc->sc_dev, "could not create data DMA tag\n");
521 for (i = 0; i < count; i++) {
522 error = bus_dmamap_create(ring->data_dmat, 0,
525 device_printf(sc->sc_dev, "could not create DMA map\n");
532 fail: rt2560_free_tx_ring(sc, ring);
537 rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
539 struct rt2560_tx_desc *desc;
540 struct rt2560_tx_data *data;
543 for (i = 0; i < ring->count; i++) {
544 desc = &ring->desc[i];
545 data = &ring->data[i];
547 if (data->m != NULL) {
548 bus_dmamap_sync(ring->data_dmat, data->map,
549 BUS_DMASYNC_POSTWRITE);
550 bus_dmamap_unload(ring->data_dmat, data->map);
555 if (data->ni != NULL) {
556 ieee80211_free_node(data->ni);
563 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
566 ring->cur = ring->next = 0;
567 ring->cur_encrypt = ring->next_encrypt = 0;
571 rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
573 struct rt2560_tx_data *data;
576 if (ring->desc != NULL) {
577 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
578 BUS_DMASYNC_POSTWRITE);
579 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
580 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
583 if (ring->desc_dmat != NULL)
584 bus_dma_tag_destroy(ring->desc_dmat);
586 if (ring->data != NULL) {
587 for (i = 0; i < ring->count; i++) {
588 data = &ring->data[i];
590 if (data->m != NULL) {
591 bus_dmamap_sync(ring->data_dmat, data->map,
592 BUS_DMASYNC_POSTWRITE);
593 bus_dmamap_unload(ring->data_dmat, data->map);
597 if (data->ni != NULL)
598 ieee80211_free_node(data->ni);
600 if (data->map != NULL)
601 bus_dmamap_destroy(ring->data_dmat, data->map);
604 kfree(ring->data, M_DEVBUF);
607 if (ring->data_dmat != NULL)
608 bus_dma_tag_destroy(ring->data_dmat);
612 rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
615 struct rt2560_rx_desc *desc;
616 struct rt2560_rx_data *data;
621 ring->cur = ring->next = 0;
622 ring->cur_decrypt = 0;
624 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
625 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
626 count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
627 0, &ring->desc_dmat);
629 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
633 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
634 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
636 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
640 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
641 count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
644 device_printf(sc->sc_dev, "could not load desc DMA map\n");
648 ring->data = kmalloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
650 if (ring->data == NULL) {
651 device_printf(sc->sc_dev, "could not allocate soft data\n");
657 * Pre-allocate Rx buffers and populate Rx ring.
659 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
660 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
661 1, MCLBYTES, 0, &ring->data_dmat);
663 device_printf(sc->sc_dev, "could not create data DMA tag\n");
667 for (i = 0; i < count; i++) {
668 desc = &sc->rxq.desc[i];
669 data = &sc->rxq.data[i];
671 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
673 device_printf(sc->sc_dev, "could not create DMA map\n");
677 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
678 if (data->m == NULL) {
679 device_printf(sc->sc_dev,
680 "could not allocate rx mbuf\n");
685 error = bus_dmamap_load(ring->data_dmat, data->map,
686 mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
689 device_printf(sc->sc_dev,
690 "could not load rx buf DMA map");
694 desc->flags = htole32(RT2560_RX_BUSY);
695 desc->physaddr = htole32(physaddr);
698 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
702 fail: rt2560_free_rx_ring(sc, ring);
707 rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
711 for (i = 0; i < ring->count; i++) {
712 ring->desc[i].flags = htole32(RT2560_RX_BUSY);
713 ring->data[i].drop = 0;
716 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
718 ring->cur = ring->next = 0;
719 ring->cur_decrypt = 0;
723 rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
725 struct rt2560_rx_data *data;
728 if (ring->desc != NULL) {
729 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
730 BUS_DMASYNC_POSTWRITE);
731 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
732 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
735 if (ring->desc_dmat != NULL)
736 bus_dma_tag_destroy(ring->desc_dmat);
738 if (ring->data != NULL) {
739 for (i = 0; i < ring->count; i++) {
740 data = &ring->data[i];
742 if (data->m != NULL) {
743 bus_dmamap_sync(ring->data_dmat, data->map,
744 BUS_DMASYNC_POSTREAD);
745 bus_dmamap_unload(ring->data_dmat, data->map);
749 if (data->map != NULL)
750 bus_dmamap_destroy(ring->data_dmat, data->map);
753 kfree(ring->data, M_DEVBUF);
756 if (ring->data_dmat != NULL)
757 bus_dma_tag_destroy(ring->data_dmat);
761 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
763 struct rt2560_vap *rvp = RT2560_VAP(vap);
764 struct ifnet *ifp = vap->iv_ic->ic_ifp;
765 struct rt2560_softc *sc = ifp->if_softc;
768 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
769 /* abort TSF synchronization */
770 RAL_WRITE(sc, RT2560_CSR14, 0);
772 /* turn association led off */
773 rt2560_update_led(sc, 0, 0);
776 error = rvp->ral_newstate(vap, nstate, arg);
778 if (error == 0 && nstate == IEEE80211_S_RUN) {
779 struct ieee80211_node *ni = vap->iv_bss;
782 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
783 rt2560_update_plcp(sc);
784 rt2560_set_basicrates(sc);
785 rt2560_set_bssid(sc, ni->ni_bssid);
788 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
789 vap->iv_opmode == IEEE80211_M_IBSS ||
790 vap->iv_opmode == IEEE80211_M_MBSS) {
791 m = ieee80211_beacon_alloc(ni, &rvp->ral_bo);
793 if_printf(ifp, "could not allocate beacon\n");
796 ieee80211_ref_node(ni);
797 error = rt2560_tx_bcn(sc, m, ni);
802 /* turn assocation led on */
803 rt2560_update_led(sc, 1, 0);
805 if (vap->iv_opmode != IEEE80211_M_MONITOR)
806 rt2560_enable_tsf_sync(sc);
808 rt2560_enable_tsf(sc);
814 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
818 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
824 /* clock C once before the first command */
825 RT2560_EEPROM_CTL(sc, 0);
827 RT2560_EEPROM_CTL(sc, RT2560_S);
828 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
829 RT2560_EEPROM_CTL(sc, RT2560_S);
831 /* write start bit (1) */
832 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
833 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
835 /* write READ opcode (10) */
836 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
837 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
838 RT2560_EEPROM_CTL(sc, RT2560_S);
839 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
841 /* write address (A5-A0 or A7-A0) */
842 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
843 for (; n >= 0; n--) {
844 RT2560_EEPROM_CTL(sc, RT2560_S |
845 (((addr >> n) & 1) << RT2560_SHIFT_D));
846 RT2560_EEPROM_CTL(sc, RT2560_S |
847 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
850 RT2560_EEPROM_CTL(sc, RT2560_S);
852 /* read data Q15-Q0 */
854 for (n = 15; n >= 0; n--) {
855 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
856 tmp = RAL_READ(sc, RT2560_CSR21);
857 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
858 RT2560_EEPROM_CTL(sc, RT2560_S);
861 RT2560_EEPROM_CTL(sc, 0);
863 /* clear Chip Select and clock C */
864 RT2560_EEPROM_CTL(sc, RT2560_S);
865 RT2560_EEPROM_CTL(sc, 0);
866 RT2560_EEPROM_CTL(sc, RT2560_C);
872 * Some frames were processed by the hardware cipher engine and are ready for
876 rt2560_encryption_intr(struct rt2560_softc *sc)
878 struct rt2560_tx_desc *desc;
881 /* retrieve last descriptor index processed by cipher engine */
882 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
883 hw /= RT2560_TX_DESC_SIZE;
885 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
886 BUS_DMASYNC_POSTREAD);
888 while (sc->txq.next_encrypt != hw) {
889 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
890 kprintf("hw encrypt %d, cur_encrypt %d\n", hw,
891 sc->txq.cur_encrypt);
895 desc = &sc->txq.desc[sc->txq.next_encrypt];
897 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
898 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
901 /* for TKIP, swap eiv field to fix a bug in ASIC */
902 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
903 RT2560_TX_CIPHER_TKIP)
904 desc->eiv = bswap32(desc->eiv);
906 /* mark the frame ready for transmission */
907 desc->flags |= htole32(RT2560_TX_VALID);
908 desc->flags |= htole32(RT2560_TX_BUSY);
910 DPRINTFN(sc, 15, "encryption done idx=%u\n",
911 sc->txq.next_encrypt);
913 sc->txq.next_encrypt =
914 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
917 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
918 BUS_DMASYNC_PREWRITE);
921 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
925 rt2560_tx_intr(struct rt2560_softc *sc)
927 struct ifnet *ifp = sc->sc_ifp;
928 struct rt2560_tx_desc *desc;
929 struct rt2560_tx_data *data;
933 struct ieee80211vap *vap;
934 struct ieee80211_node *ni;
936 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
937 BUS_DMASYNC_POSTREAD);
940 desc = &sc->txq.desc[sc->txq.next];
941 data = &sc->txq.data[sc->txq.next];
943 flags = le32toh(desc->flags);
944 if ((flags & RT2560_TX_BUSY) ||
945 (flags & RT2560_TX_CIPHER_BUSY) ||
946 !(flags & RT2560_TX_VALID))
953 switch (flags & RT2560_TX_RESULT_MASK) {
954 case RT2560_TX_SUCCESS:
957 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
958 if (data->rix != IEEE80211_FIXED_RATE_NONE)
959 ieee80211_ratectl_tx_complete(vap, ni,
960 IEEE80211_RATECTL_TX_SUCCESS,
965 case RT2560_TX_SUCCESS_RETRY:
966 retrycnt = RT2560_TX_RETRYCNT(flags);
968 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
970 if (data->rix != IEEE80211_FIXED_RATE_NONE)
971 ieee80211_ratectl_tx_complete(vap, ni,
972 IEEE80211_RATECTL_TX_SUCCESS,
977 case RT2560_TX_FAIL_RETRY:
978 retrycnt = RT2560_TX_RETRYCNT(flags);
980 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
982 if (data->rix != IEEE80211_FIXED_RATE_NONE)
983 ieee80211_ratectl_tx_complete(vap, ni,
984 IEEE80211_RATECTL_TX_FAILURE,
989 case RT2560_TX_FAIL_INVALID:
990 case RT2560_TX_FAIL_OTHER:
992 device_printf(sc->sc_dev, "sending data frame failed "
997 bus_dmamap_sync(sc->txq.data_dmat, data->map,
998 BUS_DMASYNC_POSTWRITE);
999 bus_dmamap_unload(sc->txq.data_dmat, data->map);
1002 ieee80211_free_node(data->ni);
1006 /* descriptor is no longer valid */
1007 desc->flags &= ~htole32(RT2560_TX_VALID);
1009 DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
1012 sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
1015 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1016 BUS_DMASYNC_PREWRITE);
1018 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1019 sc->sc_tx_timer = 0;
1021 if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) {
1022 sc->sc_flags &= ~RT2560_F_DATA_OACTIVE;
1024 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1025 ifq_clr_oactive(&ifp->if_snd);
1026 rt2560_start_locked(ifp);
1031 rt2560_prio_intr(struct rt2560_softc *sc)
1033 struct ifnet *ifp = sc->sc_ifp;
1034 struct rt2560_tx_desc *desc;
1035 struct rt2560_tx_data *data;
1036 struct ieee80211_node *ni;
1040 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1041 BUS_DMASYNC_POSTREAD);
1044 desc = &sc->prioq.desc[sc->prioq.next];
1045 data = &sc->prioq.data[sc->prioq.next];
1047 flags = le32toh(desc->flags);
1048 if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
1051 switch (flags & RT2560_TX_RESULT_MASK) {
1052 case RT2560_TX_SUCCESS:
1053 DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
1056 case RT2560_TX_SUCCESS_RETRY:
1057 DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
1058 (flags >> 5) & 0x7);
1061 case RT2560_TX_FAIL_RETRY:
1062 DPRINTFN(sc, 9, "%s\n",
1063 "sending mgt frame failed (too much retries)");
1066 case RT2560_TX_FAIL_INVALID:
1067 case RT2560_TX_FAIL_OTHER:
1069 device_printf(sc->sc_dev, "sending mgt frame failed "
1074 bus_dmamap_sync(sc->prioq.data_dmat, data->map,
1075 BUS_DMASYNC_POSTWRITE);
1076 bus_dmamap_unload(sc->prioq.data_dmat, data->map);
1083 /* descriptor is no longer valid */
1084 desc->flags &= ~htole32(RT2560_TX_VALID);
1086 DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
1089 sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
1091 if (m->m_flags & M_TXCB)
1092 ieee80211_process_callback(ni, m,
1093 (flags & RT2560_TX_RESULT_MASK) &~
1094 (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
1096 ieee80211_free_node(ni);
1099 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1100 BUS_DMASYNC_PREWRITE);
1102 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1103 sc->sc_tx_timer = 0;
1105 if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) {
1106 sc->sc_flags &= ~RT2560_F_PRIO_OACTIVE;
1108 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1109 ifq_clr_oactive(&ifp->if_snd);
1110 rt2560_start_locked(ifp);
1115 * Some frames were processed by the hardware cipher engine and are ready for
1116 * handoff to the IEEE802.11 layer.
1119 rt2560_decryption_intr(struct rt2560_softc *sc)
1121 struct ifnet *ifp = sc->sc_ifp;
1122 struct ieee80211com *ic = ifp->if_l2com;
1123 struct rt2560_rx_desc *desc;
1124 struct rt2560_rx_data *data;
1125 bus_addr_t physaddr;
1126 struct ieee80211_frame *wh;
1127 struct ieee80211_node *ni;
1128 struct mbuf *mnew, *m;
1132 /* retrieve last decriptor index processed by cipher engine */
1133 hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
1134 hw /= RT2560_RX_DESC_SIZE;
1136 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1137 BUS_DMASYNC_POSTREAD);
1139 for (; sc->rxq.cur_decrypt != hw;) {
1140 desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
1141 data = &sc->rxq.data[sc->rxq.cur_decrypt];
1143 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1144 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1152 if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
1153 (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) {
1159 * Try to allocate a new mbuf for this ring element and load it
1160 * before processing the current mbuf. If the ring element
1161 * cannot be loaded, drop the received packet and reuse the old
1162 * mbuf. In the unlikely case that the old mbuf can't be
1163 * reloaded either, explicitly panic.
1165 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1171 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1172 BUS_DMASYNC_POSTREAD);
1173 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1175 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1176 mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
1181 /* try to reload the old mbuf */
1182 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1183 mtod(data->m, void *), MCLBYTES,
1184 rt2560_dma_map_addr, &physaddr, 0);
1186 /* very unlikely that it will fail... */
1187 panic("%s: could not load old rx mbuf",
1188 device_get_name(sc->sc_dev));
1195 * New mbuf successfully loaded, update Rx ring and continue
1200 desc->physaddr = htole32(physaddr);
1203 m->m_pkthdr.rcvif = ifp;
1204 m->m_pkthdr.len = m->m_len =
1205 (le32toh(desc->flags) >> 16) & 0xfff;
1207 rssi = RT2560_RSSI(sc, desc->rssi);
1208 nf = RT2560_NOISE_FLOOR;
1209 if (ieee80211_radiotap_active(ic)) {
1210 struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
1211 uint32_t tsf_lo, tsf_hi;
1213 /* get timestamp (low and high 32 bits) */
1214 tsf_hi = RAL_READ(sc, RT2560_CSR17);
1215 tsf_lo = RAL_READ(sc, RT2560_CSR16);
1218 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1220 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1221 (desc->flags & htole32(RT2560_RX_OFDM)) ?
1222 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1223 tap->wr_antenna = sc->rx_ant;
1224 tap->wr_antsignal = nf + rssi;
1225 tap->wr_antnoise = nf;
1228 sc->sc_flags |= RT2560_F_INPUT_RUNNING;
1229 wh = mtod(m, struct ieee80211_frame *);
1230 ni = ieee80211_find_rxnode(ic,
1231 (struct ieee80211_frame_min *)wh);
1233 (void) ieee80211_input(ni, m, rssi, nf);
1234 ieee80211_free_node(ni);
1236 (void) ieee80211_input_all(ic, m, rssi, nf);
1238 sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
1239 skip: desc->flags = htole32(RT2560_RX_BUSY);
1241 DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
1243 sc->rxq.cur_decrypt =
1244 (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
1247 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1248 BUS_DMASYNC_PREWRITE);
1252 * Some frames were received. Pass them to the hardware cipher engine before
1253 * sending them to the 802.11 layer.
1256 rt2560_rx_intr(struct rt2560_softc *sc)
1258 struct rt2560_rx_desc *desc;
1259 struct rt2560_rx_data *data;
1261 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1262 BUS_DMASYNC_POSTREAD);
1265 desc = &sc->rxq.desc[sc->rxq.cur];
1266 data = &sc->rxq.data[sc->rxq.cur];
1268 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1269 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1274 if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
1275 (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
1277 * This should not happen since we did not request
1278 * to receive those frames when we filled RXCSR0.
1280 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1281 le32toh(desc->flags));
1285 if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
1286 DPRINTFN(sc, 5, "%s\n", "bad length");
1290 /* mark the frame for decryption */
1291 desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
1293 DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
1295 sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
1298 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1299 BUS_DMASYNC_PREWRITE);
1302 RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
1306 rt2560_beacon_update(struct ieee80211vap *vap, int item)
1308 struct rt2560_vap *rvp = RT2560_VAP(vap);
1309 struct ieee80211_beacon_offsets *bo = &rvp->ral_bo;
1311 setbit(bo->bo_flags, item);
1315 * This function is called periodically in IBSS mode when a new beacon must be
1319 rt2560_beacon_expire(struct rt2560_softc *sc)
1321 struct ifnet *ifp = sc->sc_ifp;
1322 struct ieee80211com *ic = ifp->if_l2com;
1323 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1324 struct rt2560_vap *rvp = RT2560_VAP(vap);
1325 struct rt2560_tx_data *data;
1327 if (ic->ic_opmode != IEEE80211_M_IBSS &&
1328 ic->ic_opmode != IEEE80211_M_HOSTAP &&
1329 ic->ic_opmode != IEEE80211_M_MBSS)
1332 data = &sc->bcnq.data[sc->bcnq.next];
1334 * Don't send beacon if bsschan isn't set
1336 if (data->ni == NULL)
1339 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1340 bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
1342 /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
1343 ieee80211_beacon_update(data->ni, &rvp->ral_bo, data->m, 1);
1345 rt2560_tx_bcn(sc, data->m, data->ni);
1347 DPRINTFN(sc, 15, "%s", "beacon expired\n");
1349 sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
1354 rt2560_wakeup_expire(struct rt2560_softc *sc)
1356 DPRINTFN(sc, 2, "%s", "wakeup expired\n");
1360 rt2560_intr(void *arg)
1362 struct rt2560_softc *sc = arg;
1363 struct ifnet *ifp = sc->sc_ifp;
1366 /* disable interrupts */
1367 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
1369 /* don't re-enable interrupts if we're shutting down */
1370 if (!(ifp->if_flags & IFF_RUNNING)) {
1374 r = RAL_READ(sc, RT2560_CSR7);
1375 RAL_WRITE(sc, RT2560_CSR7, r);
1377 if (r & RT2560_BEACON_EXPIRE)
1378 rt2560_beacon_expire(sc);
1380 if (r & RT2560_WAKEUP_EXPIRE)
1381 rt2560_wakeup_expire(sc);
1383 if (r & RT2560_ENCRYPTION_DONE)
1384 rt2560_encryption_intr(sc);
1386 if (r & RT2560_TX_DONE)
1389 if (r & RT2560_PRIO_DONE)
1390 rt2560_prio_intr(sc);
1392 if (r & RT2560_DECRYPTION_DONE)
1393 rt2560_decryption_intr(sc);
1395 if (r & RT2560_RX_DONE) {
1397 rt2560_encryption_intr(sc);
1400 /* re-enable interrupts */
1401 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
1404 #define RAL_SIFS 10 /* us */
1406 #define RT2560_TXRX_TURNAROUND 10 /* us */
1409 rt2560_plcp_signal(int rate)
1412 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1413 case 12: return 0xb;
1414 case 18: return 0xf;
1415 case 24: return 0xa;
1416 case 36: return 0xe;
1417 case 48: return 0x9;
1418 case 72: return 0xd;
1419 case 96: return 0x8;
1420 case 108: return 0xc;
1422 /* CCK rates (NB: not IEEE std, device-specific) */
1425 case 11: return 0x2;
1426 case 22: return 0x3;
1428 return 0xff; /* XXX unsupported/unknown rate */
1432 rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
1433 uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
1435 struct ifnet *ifp = sc->sc_ifp;
1436 struct ieee80211com *ic = ifp->if_l2com;
1437 uint16_t plcp_length;
1440 desc->flags = htole32(flags);
1441 desc->flags |= htole32(len << 16);
1443 desc->physaddr = htole32(physaddr);
1444 desc->wme = htole16(
1446 RT2560_LOGCWMIN(3) |
1447 RT2560_LOGCWMAX(8));
1449 /* setup PLCP fields */
1450 desc->plcp_signal = rt2560_plcp_signal(rate);
1451 desc->plcp_service = 4;
1453 len += IEEE80211_CRC_LEN;
1454 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1455 desc->flags |= htole32(RT2560_TX_OFDM);
1457 plcp_length = len & 0xfff;
1458 desc->plcp_length_hi = plcp_length >> 6;
1459 desc->plcp_length_lo = plcp_length & 0x3f;
1461 plcp_length = (16 * len + rate - 1) / rate;
1463 remainder = (16 * len) % 22;
1464 if (remainder != 0 && remainder < 7)
1465 desc->plcp_service |= RT2560_PLCP_LENGEXT;
1467 desc->plcp_length_hi = plcp_length >> 8;
1468 desc->plcp_length_lo = plcp_length & 0xff;
1470 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1471 desc->plcp_signal |= 0x08;
1475 desc->flags |= htole32(RT2560_TX_VALID);
1476 desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
1477 : htole32(RT2560_TX_BUSY);
1481 rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
1482 struct ieee80211_node *ni)
1484 struct ieee80211vap *vap = ni->ni_vap;
1485 struct rt2560_tx_desc *desc;
1486 struct rt2560_tx_data *data;
1487 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1488 int nsegs, rate, error;
1490 desc = &sc->bcnq.desc[sc->bcnq.cur];
1491 data = &sc->bcnq.data[sc->bcnq.cur];
1493 /* XXX maybe a separate beacon rate? */
1494 rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
1496 error = bus_dmamap_load_mbuf_segment(sc->bcnq.data_dmat, data->map, m0,
1497 segs, 1, &nsegs, BUS_DMA_NOWAIT);
1499 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1505 if (ieee80211_radiotap_active_vap(vap)) {
1506 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1509 tap->wt_rate = rate;
1510 tap->wt_antenna = sc->tx_ant;
1512 ieee80211_radiotap_tx(vap, m0);
1518 rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
1519 RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr);
1521 DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
1522 m0->m_pkthdr.len, sc->bcnq.cur, rate);
1524 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1525 bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
1526 BUS_DMASYNC_PREWRITE);
1528 sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
1534 rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
1535 struct ieee80211_node *ni)
1537 struct ieee80211vap *vap = ni->ni_vap;
1538 struct ieee80211com *ic = ni->ni_ic;
1539 struct rt2560_tx_desc *desc;
1540 struct rt2560_tx_data *data;
1541 struct ieee80211_frame *wh;
1542 struct ieee80211_key *k;
1543 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1546 int nsegs, rate, error;
1548 desc = &sc->prioq.desc[sc->prioq.cur];
1549 data = &sc->prioq.data[sc->prioq.cur];
1551 rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
1553 wh = mtod(m0, struct ieee80211_frame *);
1555 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1556 k = ieee80211_crypto_encap(ni, m0);
1563 error = bus_dmamap_load_mbuf_segment(sc->prioq.data_dmat, data->map, m0,
1564 segs, 1, &nsegs, 0);
1566 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1572 if (ieee80211_radiotap_active_vap(vap)) {
1573 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1576 tap->wt_rate = rate;
1577 tap->wt_antenna = sc->tx_ant;
1579 ieee80211_radiotap_tx(vap, m0);
1584 /* management frames are not taken into account for amrr */
1585 data->rix = IEEE80211_FIXED_RATE_NONE;
1587 wh = mtod(m0, struct ieee80211_frame *);
1589 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1590 flags |= RT2560_TX_ACK;
1592 dur = ieee80211_ack_duration(ic->ic_rt,
1593 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1594 *(uint16_t *)wh->i_dur = htole16(dur);
1596 /* tell hardware to add timestamp for probe responses */
1597 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1598 IEEE80211_FC0_TYPE_MGT &&
1599 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1600 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1601 flags |= RT2560_TX_TIMESTAMP;
1604 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
1607 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1608 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1609 BUS_DMASYNC_PREWRITE);
1611 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1612 m0->m_pkthdr.len, sc->prioq.cur, rate);
1616 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1617 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1623 rt2560_sendprot(struct rt2560_softc *sc,
1624 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1626 struct ieee80211com *ic = ni->ni_ic;
1627 const struct ieee80211_frame *wh;
1628 struct rt2560_tx_desc *desc;
1629 struct rt2560_tx_data *data;
1631 int protrate, ackrate, pktlen, flags, isshort, error;
1633 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1636 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1637 ("protection %d", prot));
1639 wh = mtod(m, const struct ieee80211_frame *);
1640 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1642 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1643 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1645 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1646 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1647 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1648 flags = RT2560_TX_MORE_FRAG;
1649 if (prot == IEEE80211_PROT_RTSCTS) {
1650 /* NB: CTS is the same size as an ACK */
1651 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1652 flags |= RT2560_TX_ACK;
1653 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1655 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1657 if (mprot == NULL) {
1658 /* XXX stat + msg */
1662 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1663 data = &sc->txq.data[sc->txq.cur_encrypt];
1665 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map,
1666 mprot, segs, 1, &nsegs, 0);
1668 device_printf(sc->sc_dev,
1669 "could not map mbuf (error %d)\n", error);
1675 data->ni = ieee80211_ref_node(ni);
1676 /* ctl frames are not taken into account for amrr */
1677 data->rix = IEEE80211_FIXED_RATE_NONE;
1679 rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
1682 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1683 BUS_DMASYNC_PREWRITE);
1686 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1692 rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
1693 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
1695 struct ieee80211vap *vap = ni->ni_vap;
1696 struct ieee80211com *ic = ni->ni_ic;
1697 struct rt2560_tx_desc *desc;
1698 struct rt2560_tx_data *data;
1699 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1701 int nsegs, rate, error;
1703 desc = &sc->prioq.desc[sc->prioq.cur];
1704 data = &sc->prioq.data[sc->prioq.cur];
1706 rate = params->ibp_rate0;
1707 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1708 /* XXX fall back to mcast/mgmt rate? */
1714 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1715 flags |= RT2560_TX_ACK;
1716 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1717 error = rt2560_sendprot(sc, m0, ni,
1718 params->ibp_flags & IEEE80211_BPF_RTS ?
1719 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1725 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1728 error = bus_dmamap_load_mbuf_segment(sc->prioq.data_dmat, data->map, m0,
1729 segs, 1, &nsegs, 0);
1731 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1737 if (ieee80211_radiotap_active_vap(vap)) {
1738 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1741 tap->wt_rate = rate;
1742 tap->wt_antenna = sc->tx_ant;
1744 ieee80211_radiotap_tx(ni->ni_vap, m0);
1750 /* XXX need to setup descriptor ourself */
1751 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
1752 rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
1755 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1756 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1757 BUS_DMASYNC_PREWRITE);
1759 DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n",
1760 m0->m_pkthdr.len, sc->prioq.cur, rate);
1764 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1765 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1771 rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
1772 struct ieee80211_node *ni)
1774 struct ieee80211vap *vap = ni->ni_vap;
1775 struct ieee80211com *ic = ni->ni_ic;
1776 struct rt2560_tx_desc *desc;
1777 struct rt2560_tx_data *data;
1778 struct ieee80211_frame *wh;
1779 const struct ieee80211_txparam *tp;
1780 struct ieee80211_key *k;
1782 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1785 int nsegs, rate, error;
1787 wh = mtod(m0, struct ieee80211_frame *);
1789 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1790 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1791 rate = tp->mcastrate;
1792 } else if (m0->m_flags & M_EAPOL) {
1793 rate = tp->mgmtrate;
1794 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1795 rate = tp->ucastrate;
1797 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1798 rate = ni->ni_txrate;
1801 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1802 k = ieee80211_crypto_encap(ni, m0);
1808 /* packet header may have moved, reset our local pointer */
1809 wh = mtod(m0, struct ieee80211_frame *);
1813 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1814 int prot = IEEE80211_PROT_NONE;
1815 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1816 prot = IEEE80211_PROT_RTSCTS;
1817 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1818 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1819 prot = ic->ic_protmode;
1820 if (prot != IEEE80211_PROT_NONE) {
1821 error = rt2560_sendprot(sc, m0, ni, prot, rate);
1826 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1830 data = &sc->txq.data[sc->txq.cur_encrypt];
1831 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1833 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map, m0,
1834 segs, 1, &nsegs, 0);
1835 if (error != 0 && error != EFBIG) {
1836 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1842 mnew = m_defrag(m0, MB_DONTWAIT);
1844 device_printf(sc->sc_dev,
1845 "could not defragment mbuf\n");
1851 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map,
1852 m0, segs, 1, &nsegs, 0);
1854 device_printf(sc->sc_dev,
1855 "could not map mbuf (error %d)\n", error);
1860 /* packet header may have moved, reset our local pointer */
1861 wh = mtod(m0, struct ieee80211_frame *);
1864 if (ieee80211_radiotap_active_vap(vap)) {
1865 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1868 tap->wt_rate = rate;
1869 tap->wt_antenna = sc->tx_ant;
1871 ieee80211_radiotap_tx(vap, m0);
1877 /* remember link conditions for rate adaptation algorithm */
1878 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1879 data->rix = ni->ni_txrate;
1880 /* XXX probably need last rssi value and not avg */
1881 data->rssi = ic->ic_node_getrssi(ni);
1883 data->rix = IEEE80211_FIXED_RATE_NONE;
1885 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1886 flags |= RT2560_TX_ACK;
1888 dur = ieee80211_ack_duration(ic->ic_rt,
1889 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1890 *(uint16_t *)wh->i_dur = htole16(dur);
1893 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
1896 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1897 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1898 BUS_DMASYNC_PREWRITE);
1900 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1901 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
1905 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1906 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
1912 rt2560_start_locked(struct ifnet *ifp)
1914 struct rt2560_softc *sc = ifp->if_softc;
1916 struct ieee80211_node *ni;
1919 m = ifq_dequeue(&ifp->if_snd, NULL);
1922 if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
1923 ifq_prepend(&ifp->if_snd, m);
1924 ifq_set_oactive(&ifp->if_snd);
1925 sc->sc_flags |= RT2560_F_DATA_OACTIVE;
1928 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1929 if (rt2560_tx_data(sc, m, ni) != 0) {
1930 ieee80211_free_node(ni);
1935 sc->sc_tx_timer = 5;
1940 rt2560_start(struct ifnet *ifp)
1942 rt2560_start_locked(ifp);
1946 rt2560_watchdog_callout(void *arg)
1948 struct rt2560_softc *sc = arg;
1949 struct ifnet *ifp = sc->sc_ifp;
1951 KASSERT(ifp->if_flags & IFF_RUNNING, ("not running"));
1953 if (sc->sc_invalid) /* card ejected */
1956 rt2560_encryption_intr(sc);
1959 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1960 if_printf(ifp, "device timeout\n");
1961 rt2560_init_locked(sc);
1963 /* NB: callout is reset in rt2560_init() */
1966 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog_callout, sc);
1970 rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
1972 struct rt2560_softc *sc = ifp->if_softc;
1973 struct ieee80211com *ic = ifp->if_l2com;
1974 struct ifreq *ifr = (struct ifreq *) data;
1975 int error = 0, startall = 0;
1979 if (ifp->if_flags & IFF_UP) {
1980 if ((ifp->if_flags & IFF_RUNNING) == 0) {
1981 rt2560_init_locked(sc);
1984 rt2560_update_promisc(ifp);
1986 if (ifp->if_flags & IFF_RUNNING)
1987 rt2560_stop_locked(sc);
1990 ieee80211_start_all(ic);
1993 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1996 error = ether_ioctl(ifp, cmd, data);
2006 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
2011 for (ntries = 0; ntries < 100; ntries++) {
2012 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2016 if (ntries == 100) {
2017 device_printf(sc->sc_dev, "could not write to BBP\n");
2021 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
2022 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
2024 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
2028 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
2033 for (ntries = 0; ntries < 100; ntries++) {
2034 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2038 if (ntries == 100) {
2039 device_printf(sc->sc_dev, "could not read from BBP\n");
2043 val = RT2560_BBP_BUSY | reg << 8;
2044 RAL_WRITE(sc, RT2560_BBPCSR, val);
2046 for (ntries = 0; ntries < 100; ntries++) {
2047 val = RAL_READ(sc, RT2560_BBPCSR);
2048 if (!(val & RT2560_BBP_BUSY))
2053 device_printf(sc->sc_dev, "could not read from BBP\n");
2058 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2063 for (ntries = 0; ntries < 100; ntries++) {
2064 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2068 if (ntries == 100) {
2069 device_printf(sc->sc_dev, "could not write to RF\n");
2073 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2075 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2077 /* remember last written value in sc */
2078 sc->rf_regs[reg] = val;
2080 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2084 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2086 struct ifnet *ifp = sc->sc_ifp;
2087 struct ieee80211com *ic = ifp->if_l2com;
2091 chan = ieee80211_chan2ieee(ic, c);
2092 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2094 if (IEEE80211_IS_CHAN_2GHZ(c))
2095 power = min(sc->txpow[chan - 1], 31);
2099 /* adjust txpower using ifconfig settings */
2100 power -= (100 - ic->ic_txpowlimit) / 8;
2102 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2104 switch (sc->rf_rev) {
2105 case RT2560_RF_2522:
2106 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2107 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2108 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2111 case RT2560_RF_2523:
2112 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2113 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2114 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2115 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2118 case RT2560_RF_2524:
2119 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2120 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2121 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2122 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2125 case RT2560_RF_2525:
2126 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2127 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2128 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2129 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2131 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2132 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2133 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2134 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2137 case RT2560_RF_2525E:
2138 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2139 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2140 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2141 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2144 case RT2560_RF_2526:
2145 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2146 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2147 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2149 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2150 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2151 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2155 case RT2560_RF_5222:
2156 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2158 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2159 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2160 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2161 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2164 kprintf("unknown ral rev=%d\n", sc->rf_rev);
2168 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2169 /* set Japan filter bit for channel 14 */
2170 tmp = rt2560_bbp_read(sc, 70);
2172 tmp &= ~RT2560_JAPAN_FILTER;
2174 tmp |= RT2560_JAPAN_FILTER;
2176 rt2560_bbp_write(sc, 70, tmp);
2178 /* clear CRC errors */
2179 RAL_READ(sc, RT2560_CNT0);
2184 rt2560_set_channel(struct ieee80211com *ic)
2186 struct ifnet *ifp = ic->ic_ifp;
2187 struct rt2560_softc *sc = ifp->if_softc;
2189 rt2560_set_chan(sc, ic->ic_curchan);
2195 * Disable RF auto-tuning.
2198 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2202 if (sc->rf_rev != RT2560_RF_2523) {
2203 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2204 rt2560_rf_write(sc, RAL_RF1, tmp);
2207 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2208 rt2560_rf_write(sc, RAL_RF3, tmp);
2210 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2215 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2219 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2221 struct ifnet *ifp = sc->sc_ifp;
2222 struct ieee80211com *ic = ifp->if_l2com;
2223 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2224 uint16_t logcwmin, preload;
2227 /* first, disable TSF synchronization */
2228 RAL_WRITE(sc, RT2560_CSR14, 0);
2230 tmp = 16 * vap->iv_bss->ni_intval;
2231 RAL_WRITE(sc, RT2560_CSR12, tmp);
2233 RAL_WRITE(sc, RT2560_CSR13, 0);
2236 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2237 tmp = logcwmin << 16 | preload;
2238 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2240 /* finally, enable TSF synchronization */
2241 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2242 if (ic->ic_opmode == IEEE80211_M_STA)
2243 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2245 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2246 RT2560_ENABLE_BEACON_GENERATOR;
2247 RAL_WRITE(sc, RT2560_CSR14, tmp);
2249 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2253 rt2560_enable_tsf(struct rt2560_softc *sc)
2255 RAL_WRITE(sc, RT2560_CSR14, 0);
2256 RAL_WRITE(sc, RT2560_CSR14,
2257 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
2261 rt2560_update_plcp(struct rt2560_softc *sc)
2263 struct ifnet *ifp = sc->sc_ifp;
2264 struct ieee80211com *ic = ifp->if_l2com;
2266 /* no short preamble for 1Mbps */
2267 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2269 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2270 /* values taken from the reference driver */
2271 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2272 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2273 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2275 /* same values as above or'ed 0x8 */
2276 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2277 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2278 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2281 DPRINTF(sc, "updating PLCP for %s preamble\n",
2282 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2286 * This function can be called by ieee80211_set_shortslottime(). Refer to
2287 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2290 rt2560_update_slot(struct ifnet *ifp)
2292 struct rt2560_softc *sc = ifp->if_softc;
2293 struct ieee80211com *ic = ifp->if_l2com;
2295 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2298 #ifndef FORCE_SLOTTIME
2299 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
2302 * Setting slot time according to "short slot time" capability
2303 * in beacon/probe_resp seems to cause problem to acknowledge
2304 * certain AP's data frames transimitted at CCK/DS rates: the
2305 * problematic AP keeps retransmitting data frames, probably
2306 * because MAC level acks are not received by hardware.
2307 * So we cheat a little bit here by claiming we are capable of
2308 * "short slot time" but setting hardware slot time to the normal
2309 * slot time. ral(4) does not seem to have trouble to receive
2310 * frames transmitted using short slot time even if hardware
2311 * slot time is set to normal slot time. If we didn't use this
2312 * trick, we would have to claim that short slot time is not
2313 * supported; this would give relative poor RX performance
2314 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2320 /* update the MAC slot boundaries */
2321 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2322 tx_pifs = tx_sifs + slottime;
2323 tx_difs = tx_sifs + 2 * slottime;
2324 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2326 tmp = RAL_READ(sc, RT2560_CSR11);
2327 tmp = (tmp & ~0x1f00) | slottime << 8;
2328 RAL_WRITE(sc, RT2560_CSR11, tmp);
2330 tmp = tx_pifs << 16 | tx_sifs;
2331 RAL_WRITE(sc, RT2560_CSR18, tmp);
2333 tmp = eifs << 16 | tx_difs;
2334 RAL_WRITE(sc, RT2560_CSR19, tmp);
2336 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2340 rt2560_set_basicrates(struct rt2560_softc *sc)
2342 struct ifnet *ifp = sc->sc_ifp;
2343 struct ieee80211com *ic = ifp->if_l2com;
2345 /* update basic rate set */
2346 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2347 /* 11b basic rates: 1, 2Mbps */
2348 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x3);
2349 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) {
2350 /* 11a basic rates: 6, 12, 24Mbps */
2351 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x150);
2353 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
2354 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x15f);
2359 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2363 /* set ON period to 70ms and OFF period to 30ms */
2364 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2365 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2369 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2373 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2374 RAL_WRITE(sc, RT2560_CSR5, tmp);
2376 tmp = bssid[4] | bssid[5] << 8;
2377 RAL_WRITE(sc, RT2560_CSR6, tmp);
2379 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":");
2383 rt2560_set_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2387 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2388 RAL_WRITE(sc, RT2560_CSR3, tmp);
2390 tmp = addr[4] | addr[5] << 8;
2391 RAL_WRITE(sc, RT2560_CSR4, tmp);
2393 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":");
2397 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2401 tmp = RAL_READ(sc, RT2560_CSR3);
2402 addr[0] = tmp & 0xff;
2403 addr[1] = (tmp >> 8) & 0xff;
2404 addr[2] = (tmp >> 16) & 0xff;
2405 addr[3] = (tmp >> 24);
2407 tmp = RAL_READ(sc, RT2560_CSR4);
2408 addr[4] = tmp & 0xff;
2409 addr[5] = (tmp >> 8) & 0xff;
2413 rt2560_update_promisc(struct ifnet *ifp)
2415 struct rt2560_softc *sc = ifp->if_softc;
2418 tmp = RAL_READ(sc, RT2560_RXCSR0);
2420 tmp &= ~RT2560_DROP_NOT_TO_ME;
2421 if (!(ifp->if_flags & IFF_PROMISC))
2422 tmp |= RT2560_DROP_NOT_TO_ME;
2424 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2426 DPRINTF(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
2427 "entering" : "leaving");
2431 rt2560_get_rf(int rev)
2434 case RT2560_RF_2522: return "RT2522";
2435 case RT2560_RF_2523: return "RT2523";
2436 case RT2560_RF_2524: return "RT2524";
2437 case RT2560_RF_2525: return "RT2525";
2438 case RT2560_RF_2525E: return "RT2525e";
2439 case RT2560_RF_2526: return "RT2526";
2440 case RT2560_RF_5222: return "RT5222";
2441 default: return "unknown";
2446 rt2560_read_config(struct rt2560_softc *sc)
2451 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2452 sc->rf_rev = (val >> 11) & 0x7;
2453 sc->hw_radio = (val >> 10) & 0x1;
2454 sc->led_mode = (val >> 6) & 0x7;
2455 sc->rx_ant = (val >> 4) & 0x3;
2456 sc->tx_ant = (val >> 2) & 0x3;
2457 sc->nb_ant = val & 0x3;
2459 /* read default values for BBP registers */
2460 for (i = 0; i < 16; i++) {
2461 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2462 if (val == 0 || val == 0xffff)
2465 sc->bbp_prom[i].reg = val >> 8;
2466 sc->bbp_prom[i].val = val & 0xff;
2469 /* read Tx power for all b/g channels */
2470 for (i = 0; i < 14 / 2; i++) {
2471 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2472 sc->txpow[i * 2] = val & 0xff;
2473 sc->txpow[i * 2 + 1] = val >> 8;
2475 for (i = 0; i < 14; ++i) {
2476 if (sc->txpow[i] > 31)
2480 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2481 if ((val & 0xff) == 0xff)
2482 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2484 sc->rssi_corr = val & 0xff;
2485 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2486 sc->rssi_corr, val);
2491 rt2560_scan_start(struct ieee80211com *ic)
2493 struct ifnet *ifp = ic->ic_ifp;
2494 struct rt2560_softc *sc = ifp->if_softc;
2496 /* abort TSF synchronization */
2497 RAL_WRITE(sc, RT2560_CSR14, 0);
2498 rt2560_set_bssid(sc, ifp->if_broadcastaddr);
2502 rt2560_scan_end(struct ieee80211com *ic)
2504 struct ifnet *ifp = ic->ic_ifp;
2505 struct rt2560_softc *sc = ifp->if_softc;
2506 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2508 rt2560_enable_tsf_sync(sc);
2509 /* XXX keep local copy */
2510 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2514 rt2560_bbp_init(struct rt2560_softc *sc)
2516 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2519 /* wait for BBP to be ready */
2520 for (ntries = 0; ntries < 100; ntries++) {
2521 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2525 if (ntries == 100) {
2526 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2530 /* initialize BBP registers to default values */
2531 for (i = 0; i < N(rt2560_def_bbp); i++) {
2532 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2533 rt2560_def_bbp[i].val);
2536 /* initialize BBP registers to values stored in EEPROM */
2537 for (i = 0; i < 16; i++) {
2538 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2540 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2542 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2549 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2554 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2556 tx |= RT2560_BBP_ANTA;
2557 else if (antenna == 2)
2558 tx |= RT2560_BBP_ANTB;
2560 tx |= RT2560_BBP_DIVERSITY;
2562 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2563 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2564 sc->rf_rev == RT2560_RF_5222)
2565 tx |= RT2560_BBP_FLIPIQ;
2567 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2569 /* update values for CCK and OFDM in BBPCSR1 */
2570 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2571 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2572 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2576 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2580 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2582 rx |= RT2560_BBP_ANTA;
2583 else if (antenna == 2)
2584 rx |= RT2560_BBP_ANTB;
2586 rx |= RT2560_BBP_DIVERSITY;
2588 /* need to force no I/Q flip for RF 2525e and 2526 */
2589 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2590 rx &= ~RT2560_BBP_FLIPIQ;
2592 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2596 rt2560_init_locked(struct rt2560_softc *sc)
2598 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2599 struct ifnet *ifp = sc->sc_ifp;
2600 struct ieee80211com *ic = ifp->if_l2com;
2604 rt2560_stop_locked(sc);
2606 /* setup tx rings */
2607 tmp = RT2560_PRIO_RING_COUNT << 24 |
2608 RT2560_ATIM_RING_COUNT << 16 |
2609 RT2560_TX_RING_COUNT << 8 |
2610 RT2560_TX_DESC_SIZE;
2612 /* rings must be initialized in this exact order */
2613 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2614 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2615 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2616 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2617 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2620 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2622 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2623 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2625 /* initialize MAC registers to default values */
2626 for (i = 0; i < N(rt2560_def_mac); i++)
2627 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2629 rt2560_set_macaddr(sc, IF_LLADDR(ifp));
2631 /* set basic rate set (will be updated later) */
2632 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2634 rt2560_update_slot(ifp);
2635 rt2560_update_plcp(sc);
2636 rt2560_update_led(sc, 0, 0);
2638 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2639 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2641 if (rt2560_bbp_init(sc) != 0) {
2646 rt2560_set_txantenna(sc, sc->tx_ant);
2647 rt2560_set_rxantenna(sc, sc->rx_ant);
2649 /* set default BSS channel */
2650 rt2560_set_chan(sc, ic->ic_curchan);
2653 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2654 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2655 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2656 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2657 ic->ic_opmode != IEEE80211_M_MBSS)
2658 tmp |= RT2560_DROP_TODS;
2659 if (!(ifp->if_flags & IFF_PROMISC))
2660 tmp |= RT2560_DROP_NOT_TO_ME;
2662 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2664 /* clear old FCS and Rx FIFO errors */
2665 RAL_READ(sc, RT2560_CNT0);
2666 RAL_READ(sc, RT2560_CNT4);
2668 /* clear any pending interrupts */
2669 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2671 /* enable interrupts */
2672 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2674 ifq_clr_oactive(&ifp->if_snd);
2675 ifp->if_flags |= IFF_RUNNING;
2677 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog_callout, sc);
2682 rt2560_init(void *priv)
2684 struct rt2560_softc *sc = priv;
2685 struct ifnet *ifp = sc->sc_ifp;
2686 struct ieee80211com *ic = ifp->if_l2com;
2688 rt2560_init_locked(sc);
2690 if (ifp->if_flags & IFF_RUNNING)
2691 ieee80211_start_all(ic); /* start all vap's */
2695 rt2560_stop_locked(struct rt2560_softc *sc)
2697 struct ifnet *ifp = sc->sc_ifp;
2698 volatile int *flags = &sc->sc_flags;
2700 while (*flags & RT2560_F_INPUT_RUNNING)
2701 zsleep(sc, &wlan_global_serializer, 0, "ralrunning", hz/10);
2703 callout_stop(&sc->watchdog_ch);
2704 sc->sc_tx_timer = 0;
2706 if (ifp->if_flags & IFF_RUNNING) {
2707 ifp->if_flags &= ~IFF_RUNNING;
2708 ifq_clr_oactive(&ifp->if_snd);
2711 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2714 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2716 /* reset ASIC (imply reset BBP) */
2717 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2718 RAL_WRITE(sc, RT2560_CSR1, 0);
2720 /* disable interrupts */
2721 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2723 /* reset Tx and Rx rings */
2724 rt2560_reset_tx_ring(sc, &sc->txq);
2725 rt2560_reset_tx_ring(sc, &sc->atimq);
2726 rt2560_reset_tx_ring(sc, &sc->prioq);
2727 rt2560_reset_tx_ring(sc, &sc->bcnq);
2728 rt2560_reset_rx_ring(sc, &sc->rxq);
2730 sc->sc_flags &= ~(RT2560_F_PRIO_OACTIVE | RT2560_F_DATA_OACTIVE);
2734 rt2560_stop(void *arg)
2736 struct rt2560_softc *sc = arg;
2738 rt2560_stop_locked(sc);
2742 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2743 const struct ieee80211_bpf_params *params)
2745 struct ieee80211com *ic = ni->ni_ic;
2746 struct ifnet *ifp = ic->ic_ifp;
2747 struct rt2560_softc *sc = ifp->if_softc;
2749 /* prevent management frames from being sent if we're not ready */
2750 if (!(ifp->if_flags & IFF_RUNNING)) {
2752 ieee80211_free_node(ni);
2755 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2756 ifq_set_oactive(&ifp->if_snd);
2757 sc->sc_flags |= RT2560_F_PRIO_OACTIVE;
2759 ieee80211_free_node(ni);
2760 return ENOBUFS; /* XXX */
2765 if (params == NULL) {
2767 * Legacy path; interpret frame contents to decide
2768 * precisely how to send the frame.
2770 if (rt2560_tx_mgt(sc, m, ni) != 0)
2774 * Caller supplied explicit parameters to use in
2775 * sending the frame.
2777 if (rt2560_tx_raw(sc, m, ni, params))
2780 sc->sc_tx_timer = 5;
2785 ieee80211_free_node(ni);
2786 return EIO; /* XXX */