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 $
25 * Ralink Technology RT2560 chipset driver
26 * http://www.ralinktech.com/
29 #include <sys/param.h>
30 #include <sys/sysctl.h>
31 #include <sys/sockio.h>
33 #include <sys/kernel.h>
34 #include <sys/socket.h>
35 #include <sys/systm.h>
36 #include <sys/malloc.h>
38 #include <sys/mutex.h>
39 #include <sys/module.h>
41 #include <sys/endian.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/rt2560reg.h>
65 #include <dev/netif/ral/rt2560var.h>
67 #define RT2560_RSSI(sc, rssi) \
68 ((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \
69 ((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0)
73 #define DPRINTF(sc, fmt, ...) do { \
74 if (sc->sc_debug > 0) \
75 kprintf(fmt, __VA_ARGS__); \
77 #define DPRINTFN(sc, n, fmt, ...) do { \
78 if (sc->sc_debug >= (n)) \
79 kprintf(fmt, __VA_ARGS__); \
82 #define DPRINTF(sc, fmt, ...)
83 #define DPRINTFN(sc, n, fmt, ...)
86 static struct ieee80211vap *rt2560_vap_create(struct ieee80211com *,
87 const char name[IFNAMSIZ], int unit, int opmode,
88 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
89 const uint8_t mac[IEEE80211_ADDR_LEN]);
90 static void rt2560_vap_delete(struct ieee80211vap *);
91 static void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int,
93 static int rt2560_alloc_tx_ring(struct rt2560_softc *,
94 struct rt2560_tx_ring *, int);
95 static void rt2560_reset_tx_ring(struct rt2560_softc *,
96 struct rt2560_tx_ring *);
97 static void rt2560_free_tx_ring(struct rt2560_softc *,
98 struct rt2560_tx_ring *);
99 static int rt2560_alloc_rx_ring(struct rt2560_softc *,
100 struct rt2560_rx_ring *, int);
101 static void rt2560_reset_rx_ring(struct rt2560_softc *,
102 struct rt2560_rx_ring *);
103 static void rt2560_free_rx_ring(struct rt2560_softc *,
104 struct rt2560_rx_ring *);
105 static int rt2560_newstate(struct ieee80211vap *,
106 enum ieee80211_state, int);
107 static uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
108 static void rt2560_encryption_intr(struct rt2560_softc *);
109 static void rt2560_tx_intr(struct rt2560_softc *);
110 static void rt2560_prio_intr(struct rt2560_softc *);
111 static void rt2560_decryption_intr(struct rt2560_softc *);
112 static void rt2560_rx_intr(struct rt2560_softc *);
113 static void rt2560_beacon_update(struct ieee80211vap *, int item);
114 static void rt2560_beacon_expire(struct rt2560_softc *);
115 static void rt2560_wakeup_expire(struct rt2560_softc *);
116 static void rt2560_scan_start(struct ieee80211com *);
117 static void rt2560_scan_end(struct ieee80211com *);
118 static void rt2560_set_channel(struct ieee80211com *);
119 static void rt2560_setup_tx_desc(struct rt2560_softc *,
120 struct rt2560_tx_desc *, uint32_t, int, int, int,
122 static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
123 struct ieee80211_node *);
124 static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
125 struct ieee80211_node *);
126 static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
127 struct ieee80211_node *);
128 static void rt2560_start_locked(struct ifnet *);
129 static void rt2560_start(struct ifnet *);
130 static void rt2560_watchdog(void *);
131 static int rt2560_ioctl(struct ifnet *, u_long, caddr_t,
133 static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
135 static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
136 static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
138 static void rt2560_set_chan(struct rt2560_softc *,
139 struct ieee80211_channel *);
141 static void rt2560_disable_rf_tune(struct rt2560_softc *);
143 static void rt2560_enable_tsf_sync(struct rt2560_softc *);
144 static void rt2560_enable_tsf(struct rt2560_softc *);
145 static void rt2560_update_plcp(struct rt2560_softc *);
146 static void rt2560_update_slot(struct ifnet *);
147 static void rt2560_set_basicrates(struct rt2560_softc *);
148 static void rt2560_update_led(struct rt2560_softc *, int, int);
149 static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
150 static void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
151 static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
152 static void rt2560_update_promisc(struct ifnet *);
153 static const char *rt2560_get_rf(int);
154 static void rt2560_read_config(struct rt2560_softc *);
155 static int rt2560_bbp_init(struct rt2560_softc *);
156 static void rt2560_set_txantenna(struct rt2560_softc *, int);
157 static void rt2560_set_rxantenna(struct rt2560_softc *, int);
158 static void rt2560_init_locked(struct rt2560_softc *);
159 static void rt2560_init(void *);
160 static void rt2560_stop_locked(struct rt2560_softc *);
161 static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
162 const struct ieee80211_bpf_params *);
164 static const struct {
167 } rt2560_def_mac[] = {
171 static const struct {
174 } rt2560_def_bbp[] = {
178 static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
179 static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
180 static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
181 static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
182 static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
183 static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
184 static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
185 static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
187 static const struct {
190 } rt2560_rf5222[] = {
195 rt2560_attach(device_t dev, int id)
197 struct rt2560_softc *sc = device_get_softc(dev);
198 struct ieee80211com *ic;
202 uint8_t macaddr[IEEE80211_ADDR_LEN];
203 struct sysctl_ctx_list *ctx;
204 struct sysctl_oid *tree;
208 lockinit(&sc->sc_lock, __DECONST(char *, device_get_nameunit(dev)),
211 callout_init(&sc->watchdog_ch);
213 /* retrieve RT2560 rev. no */
214 sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
216 /* retrieve RF rev. no and various other things from EEPROM */
217 rt2560_read_config(sc);
219 device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
220 sc->asic_rev, rt2560_get_rf(sc->rf_rev));
223 * Allocate Tx and Rx rings.
225 error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
227 device_printf(sc->sc_dev, "could not allocate Tx ring\n");
231 error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
233 device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
237 error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
239 device_printf(sc->sc_dev, "could not allocate Prio ring\n");
243 error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
245 device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
249 error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
251 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
255 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
257 device_printf(sc->sc_dev, "can not if_alloc()\n");
262 /* retrieve MAC address */
263 rt2560_get_macaddr(sc, macaddr);
266 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
267 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
268 ifp->if_init = rt2560_init;
269 ifp->if_ioctl = rt2560_ioctl;
270 ifp->if_start = rt2560_start;
271 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
272 ifq_set_ready(&ifp->if_snd);
275 ic->ic_opmode = IEEE80211_M_STA;
276 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
278 /* set device capabilities */
280 IEEE80211_C_STA /* station mode */
281 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
282 | IEEE80211_C_HOSTAP /* hostap mode */
283 | IEEE80211_C_MONITOR /* monitor mode */
284 | IEEE80211_C_AHDEMO /* adhoc demo mode */
285 | IEEE80211_C_WDS /* 4-address traffic works */
286 | IEEE80211_C_MBSS /* mesh point link mode */
287 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
288 | IEEE80211_C_SHSLOT /* short slot time supported */
289 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
290 | IEEE80211_C_BGSCAN /* capable of bg scanning */
292 | IEEE80211_C_TXFRAG /* handle tx frags */
297 setbit(&bands, IEEE80211_MODE_11B);
298 setbit(&bands, IEEE80211_MODE_11G);
299 if (sc->rf_rev == RT2560_RF_5222)
300 setbit(&bands, IEEE80211_MODE_11A);
301 ieee80211_init_channels(ic, NULL, &bands);
303 ieee80211_ifattach(ic, macaddr);
304 ic->ic_raw_xmit = rt2560_raw_xmit;
305 ic->ic_updateslot = rt2560_update_slot;
306 ic->ic_update_promisc = rt2560_update_promisc;
307 ic->ic_scan_start = rt2560_scan_start;
308 ic->ic_scan_end = rt2560_scan_end;
309 ic->ic_set_channel = rt2560_set_channel;
311 ic->ic_vap_create = rt2560_vap_create;
312 ic->ic_vap_delete = rt2560_vap_delete;
314 ieee80211_radiotap_attach(ic,
315 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
316 RT2560_TX_RADIOTAP_PRESENT,
317 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
318 RT2560_RX_RADIOTAP_PRESENT);
321 * Add a few sysctl knobs.
323 ctx = &sc->sc_sysctl_ctx;
324 sysctl_ctx_init(ctx);
325 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw),
327 device_get_nameunit(sc->sc_dev),
330 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");
338 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
339 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
341 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
342 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
345 ieee80211_announce(ic);
349 fail6: rt2560_free_rx_ring(sc, &sc->rxq);
350 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
351 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
352 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
353 fail2: rt2560_free_tx_ring(sc, &sc->txq);
354 fail1: lockuninit(&sc->sc_lock);
360 rt2560_detach(void *xsc)
362 struct rt2560_softc *sc = xsc;
363 struct ifnet *ifp = sc->sc_ifp;
364 struct ieee80211com *ic = ifp->if_l2com;
368 ieee80211_ifdetach(ic);
370 rt2560_free_tx_ring(sc, &sc->txq);
371 rt2560_free_tx_ring(sc, &sc->atimq);
372 rt2560_free_tx_ring(sc, &sc->prioq);
373 rt2560_free_tx_ring(sc, &sc->bcnq);
374 rt2560_free_rx_ring(sc, &sc->rxq);
378 lockuninit(&sc->sc_lock);
383 static struct ieee80211vap *
384 rt2560_vap_create(struct ieee80211com *ic,
385 const char name[IFNAMSIZ], int unit, int opmode, int flags,
386 const uint8_t bssid[IEEE80211_ADDR_LEN],
387 const uint8_t mac[IEEE80211_ADDR_LEN])
389 struct ifnet *ifp = ic->ic_ifp;
390 struct rt2560_vap *rvp;
391 struct ieee80211vap *vap;
394 case IEEE80211_M_STA:
395 case IEEE80211_M_IBSS:
396 case IEEE80211_M_AHDEMO:
397 case IEEE80211_M_MONITOR:
398 case IEEE80211_M_HOSTAP:
399 case IEEE80211_M_MBSS:
401 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
402 if_printf(ifp, "only 1 vap supported\n");
405 if (opmode == IEEE80211_M_STA)
406 flags |= IEEE80211_CLONE_NOBEACONS;
408 case IEEE80211_M_WDS:
409 if (TAILQ_EMPTY(&ic->ic_vaps) ||
410 ic->ic_opmode != IEEE80211_M_HOSTAP) {
411 if_printf(ifp, "wds only supported in ap mode\n");
415 * Silently remove any request for a unique
416 * bssid; WDS vap's always share the local
419 flags &= ~IEEE80211_CLONE_BSSID;
422 if_printf(ifp, "unknown opmode %d\n", opmode);
425 rvp = (struct rt2560_vap *) kmalloc(sizeof(struct rt2560_vap),
426 M_80211_VAP, M_INTWAIT | M_ZERO);
430 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
432 /* override state transition machine */
433 rvp->ral_newstate = vap->iv_newstate;
434 vap->iv_newstate = rt2560_newstate;
435 vap->iv_update_beacon = rt2560_beacon_update;
437 ieee80211_ratectl_init(vap);
439 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
440 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
441 ic->ic_opmode = opmode;
446 rt2560_vap_delete(struct ieee80211vap *vap)
448 struct rt2560_vap *rvp = RT2560_VAP(vap);
450 ieee80211_ratectl_deinit(vap);
451 ieee80211_vap_detach(vap);
452 kfree(rvp, M_80211_VAP);
456 rt2560_resume(void *xsc)
458 struct rt2560_softc *sc = xsc;
459 struct ifnet *ifp = sc->sc_ifp;
461 if (ifp->if_flags & IFF_UP)
466 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
471 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
473 *(bus_addr_t *)arg = segs[0].ds_addr;
477 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
484 ring->cur = ring->next = 0;
485 ring->cur_encrypt = ring->next_encrypt = 0;
487 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
488 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
489 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
490 0, &ring->desc_dmat);
492 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
496 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
497 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
499 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
503 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
504 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
507 device_printf(sc->sc_dev, "could not load desc DMA map\n");
511 ring->data = kmalloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
513 if (ring->data == NULL) {
514 device_printf(sc->sc_dev, "could not allocate soft data\n");
519 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
520 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
521 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, &ring->data_dmat);
523 device_printf(sc->sc_dev, "could not create data DMA tag\n");
527 for (i = 0; i < count; i++) {
528 error = bus_dmamap_create(ring->data_dmat, 0,
531 device_printf(sc->sc_dev, "could not create DMA map\n");
538 fail: rt2560_free_tx_ring(sc, ring);
543 rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
545 struct rt2560_tx_desc *desc;
546 struct rt2560_tx_data *data;
549 for (i = 0; i < ring->count; i++) {
550 desc = &ring->desc[i];
551 data = &ring->data[i];
553 if (data->m != NULL) {
554 bus_dmamap_sync(ring->data_dmat, data->map,
555 BUS_DMASYNC_POSTWRITE);
556 bus_dmamap_unload(ring->data_dmat, data->map);
561 if (data->ni != NULL) {
562 ieee80211_free_node(data->ni);
569 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
572 ring->cur = ring->next = 0;
573 ring->cur_encrypt = ring->next_encrypt = 0;
577 rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
579 struct rt2560_tx_data *data;
582 if (ring->desc != NULL) {
583 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
584 BUS_DMASYNC_POSTWRITE);
585 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
586 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
589 if (ring->desc_dmat != NULL)
590 bus_dma_tag_destroy(ring->desc_dmat);
592 if (ring->data != NULL) {
593 for (i = 0; i < ring->count; i++) {
594 data = &ring->data[i];
596 if (data->m != NULL) {
597 bus_dmamap_sync(ring->data_dmat, data->map,
598 BUS_DMASYNC_POSTWRITE);
599 bus_dmamap_unload(ring->data_dmat, data->map);
603 if (data->ni != NULL)
604 ieee80211_free_node(data->ni);
606 if (data->map != NULL)
607 bus_dmamap_destroy(ring->data_dmat, data->map);
610 kfree(ring->data, M_DEVBUF);
613 if (ring->data_dmat != NULL)
614 bus_dma_tag_destroy(ring->data_dmat);
618 rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
621 struct rt2560_rx_desc *desc;
622 struct rt2560_rx_data *data;
627 ring->cur = ring->next = 0;
628 ring->cur_decrypt = 0;
630 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
631 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
632 count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
633 0, &ring->desc_dmat);
635 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
639 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
640 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
642 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
646 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
647 count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
650 device_printf(sc->sc_dev, "could not load desc DMA map\n");
654 ring->data = kmalloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
656 if (ring->data == NULL) {
657 device_printf(sc->sc_dev, "could not allocate soft data\n");
663 * Pre-allocate Rx buffers and populate Rx ring.
665 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
666 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
667 1, MCLBYTES, 0, &ring->data_dmat);
669 device_printf(sc->sc_dev, "could not create data DMA tag\n");
673 for (i = 0; i < count; i++) {
674 desc = &sc->rxq.desc[i];
675 data = &sc->rxq.data[i];
677 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
679 device_printf(sc->sc_dev, "could not create DMA map\n");
683 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
684 if (data->m == NULL) {
685 device_printf(sc->sc_dev,
686 "could not allocate rx mbuf\n");
691 error = bus_dmamap_load(ring->data_dmat, data->map,
692 mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
695 device_printf(sc->sc_dev,
696 "could not load rx buf DMA map");
700 desc->flags = htole32(RT2560_RX_BUSY);
701 desc->physaddr = htole32(physaddr);
704 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
708 fail: rt2560_free_rx_ring(sc, ring);
713 rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
717 for (i = 0; i < ring->count; i++) {
718 ring->desc[i].flags = htole32(RT2560_RX_BUSY);
719 ring->data[i].drop = 0;
722 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
724 ring->cur = ring->next = 0;
725 ring->cur_decrypt = 0;
729 rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
731 struct rt2560_rx_data *data;
734 if (ring->desc != NULL) {
735 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
736 BUS_DMASYNC_POSTWRITE);
737 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
738 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
741 if (ring->desc_dmat != NULL)
742 bus_dma_tag_destroy(ring->desc_dmat);
744 if (ring->data != NULL) {
745 for (i = 0; i < ring->count; i++) {
746 data = &ring->data[i];
748 if (data->m != NULL) {
749 bus_dmamap_sync(ring->data_dmat, data->map,
750 BUS_DMASYNC_POSTREAD);
751 bus_dmamap_unload(ring->data_dmat, data->map);
755 if (data->map != NULL)
756 bus_dmamap_destroy(ring->data_dmat, data->map);
759 kfree(ring->data, M_DEVBUF);
762 if (ring->data_dmat != NULL)
763 bus_dma_tag_destroy(ring->data_dmat);
767 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
769 struct rt2560_vap *rvp = RT2560_VAP(vap);
770 struct ifnet *ifp = vap->iv_ic->ic_ifp;
771 struct rt2560_softc *sc = ifp->if_softc;
774 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
775 /* abort TSF synchronization */
776 RAL_WRITE(sc, RT2560_CSR14, 0);
778 /* turn association led off */
779 rt2560_update_led(sc, 0, 0);
782 error = rvp->ral_newstate(vap, nstate, arg);
784 if (error == 0 && nstate == IEEE80211_S_RUN) {
785 struct ieee80211_node *ni = vap->iv_bss;
788 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
789 rt2560_update_plcp(sc);
790 rt2560_set_basicrates(sc);
791 rt2560_set_bssid(sc, ni->ni_bssid);
794 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
795 vap->iv_opmode == IEEE80211_M_IBSS ||
796 vap->iv_opmode == IEEE80211_M_MBSS) {
797 m = ieee80211_beacon_alloc(ni, &rvp->ral_bo);
799 if_printf(ifp, "could not allocate beacon\n");
802 ieee80211_ref_node(ni);
803 error = rt2560_tx_bcn(sc, m, ni);
808 /* turn assocation led on */
809 rt2560_update_led(sc, 1, 0);
811 if (vap->iv_opmode != IEEE80211_M_MONITOR)
812 rt2560_enable_tsf_sync(sc);
814 rt2560_enable_tsf(sc);
820 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
824 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
830 /* clock C once before the first command */
831 RT2560_EEPROM_CTL(sc, 0);
833 RT2560_EEPROM_CTL(sc, RT2560_S);
834 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
835 RT2560_EEPROM_CTL(sc, RT2560_S);
837 /* write start bit (1) */
838 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
839 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
841 /* write READ opcode (10) */
842 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
843 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
844 RT2560_EEPROM_CTL(sc, RT2560_S);
845 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
847 /* write address (A5-A0 or A7-A0) */
848 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
849 for (; n >= 0; n--) {
850 RT2560_EEPROM_CTL(sc, RT2560_S |
851 (((addr >> n) & 1) << RT2560_SHIFT_D));
852 RT2560_EEPROM_CTL(sc, RT2560_S |
853 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
856 RT2560_EEPROM_CTL(sc, RT2560_S);
858 /* read data Q15-Q0 */
860 for (n = 15; n >= 0; n--) {
861 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
862 tmp = RAL_READ(sc, RT2560_CSR21);
863 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
864 RT2560_EEPROM_CTL(sc, RT2560_S);
867 RT2560_EEPROM_CTL(sc, 0);
869 /* clear Chip Select and clock C */
870 RT2560_EEPROM_CTL(sc, RT2560_S);
871 RT2560_EEPROM_CTL(sc, 0);
872 RT2560_EEPROM_CTL(sc, RT2560_C);
878 * Some frames were processed by the hardware cipher engine and are ready for
882 rt2560_encryption_intr(struct rt2560_softc *sc)
884 struct rt2560_tx_desc *desc;
887 /* retrieve last descriptor index processed by cipher engine */
888 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
889 hw /= RT2560_TX_DESC_SIZE;
891 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
892 BUS_DMASYNC_POSTREAD);
894 while (sc->txq.next_encrypt != hw) {
895 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
896 kprintf("hw encrypt %d, cur_encrypt %d\n", hw,
897 sc->txq.cur_encrypt);
901 desc = &sc->txq.desc[sc->txq.next_encrypt];
903 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
904 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
907 /* for TKIP, swap eiv field to fix a bug in ASIC */
908 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
909 RT2560_TX_CIPHER_TKIP)
910 desc->eiv = bswap32(desc->eiv);
912 /* mark the frame ready for transmission */
913 desc->flags |= htole32(RT2560_TX_VALID);
914 desc->flags |= htole32(RT2560_TX_BUSY);
916 DPRINTFN(sc, 15, "encryption done idx=%u\n",
917 sc->txq.next_encrypt);
919 sc->txq.next_encrypt =
920 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
923 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
924 BUS_DMASYNC_PREWRITE);
927 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
931 rt2560_tx_intr(struct rt2560_softc *sc)
933 struct ifnet *ifp = sc->sc_ifp;
934 struct rt2560_tx_desc *desc;
935 struct rt2560_tx_data *data;
939 struct ieee80211vap *vap;
940 struct ieee80211_node *ni;
942 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
943 BUS_DMASYNC_POSTREAD);
946 desc = &sc->txq.desc[sc->txq.next];
947 data = &sc->txq.data[sc->txq.next];
949 flags = le32toh(desc->flags);
950 if ((flags & RT2560_TX_BUSY) ||
951 (flags & RT2560_TX_CIPHER_BUSY) ||
952 !(flags & RT2560_TX_VALID))
959 switch (flags & RT2560_TX_RESULT_MASK) {
960 case RT2560_TX_SUCCESS:
963 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
964 if (data->rix != IEEE80211_FIXED_RATE_NONE)
965 ieee80211_ratectl_tx_complete(vap, ni,
966 IEEE80211_RATECTL_TX_SUCCESS,
971 case RT2560_TX_SUCCESS_RETRY:
972 retrycnt = RT2560_TX_RETRYCNT(flags);
974 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
976 if (data->rix != IEEE80211_FIXED_RATE_NONE)
977 ieee80211_ratectl_tx_complete(vap, ni,
978 IEEE80211_RATECTL_TX_SUCCESS,
983 case RT2560_TX_FAIL_RETRY:
984 retrycnt = RT2560_TX_RETRYCNT(flags);
986 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
988 if (data->rix != IEEE80211_FIXED_RATE_NONE)
989 ieee80211_ratectl_tx_complete(vap, ni,
990 IEEE80211_RATECTL_TX_FAILURE,
995 case RT2560_TX_FAIL_INVALID:
996 case RT2560_TX_FAIL_OTHER:
998 device_printf(sc->sc_dev, "sending data frame failed "
1003 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1004 BUS_DMASYNC_POSTWRITE);
1005 bus_dmamap_unload(sc->txq.data_dmat, data->map);
1008 ieee80211_free_node(data->ni);
1012 /* descriptor is no longer valid */
1013 desc->flags &= ~htole32(RT2560_TX_VALID);
1015 DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
1018 sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
1021 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1022 BUS_DMASYNC_PREWRITE);
1024 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1025 sc->sc_tx_timer = 0;
1027 if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) {
1028 sc->sc_flags &= ~RT2560_F_DATA_OACTIVE;
1030 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1031 ifp->if_flags &= ~IFF_OACTIVE;
1032 rt2560_start_locked(ifp);
1037 rt2560_prio_intr(struct rt2560_softc *sc)
1039 struct ifnet *ifp = sc->sc_ifp;
1040 struct rt2560_tx_desc *desc;
1041 struct rt2560_tx_data *data;
1042 struct ieee80211_node *ni;
1046 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1047 BUS_DMASYNC_POSTREAD);
1050 desc = &sc->prioq.desc[sc->prioq.next];
1051 data = &sc->prioq.data[sc->prioq.next];
1053 flags = le32toh(desc->flags);
1054 if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
1057 switch (flags & RT2560_TX_RESULT_MASK) {
1058 case RT2560_TX_SUCCESS:
1059 DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
1062 case RT2560_TX_SUCCESS_RETRY:
1063 DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
1064 (flags >> 5) & 0x7);
1067 case RT2560_TX_FAIL_RETRY:
1068 DPRINTFN(sc, 9, "%s\n",
1069 "sending mgt frame failed (too much retries)");
1072 case RT2560_TX_FAIL_INVALID:
1073 case RT2560_TX_FAIL_OTHER:
1075 device_printf(sc->sc_dev, "sending mgt frame failed "
1080 bus_dmamap_sync(sc->prioq.data_dmat, data->map,
1081 BUS_DMASYNC_POSTWRITE);
1082 bus_dmamap_unload(sc->prioq.data_dmat, data->map);
1089 /* descriptor is no longer valid */
1090 desc->flags &= ~htole32(RT2560_TX_VALID);
1092 DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
1095 sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
1097 if (m->m_flags & M_TXCB)
1098 ieee80211_process_callback(ni, m,
1099 (flags & RT2560_TX_RESULT_MASK) &~
1100 (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
1102 ieee80211_free_node(ni);
1105 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1106 BUS_DMASYNC_PREWRITE);
1108 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1109 sc->sc_tx_timer = 0;
1111 if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) {
1112 sc->sc_flags &= ~RT2560_F_PRIO_OACTIVE;
1114 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1115 ifp->if_flags &= ~IFF_OACTIVE;
1116 rt2560_start_locked(ifp);
1121 * Some frames were processed by the hardware cipher engine and are ready for
1122 * handoff to the IEEE802.11 layer.
1125 rt2560_decryption_intr(struct rt2560_softc *sc)
1127 struct ifnet *ifp = sc->sc_ifp;
1128 struct ieee80211com *ic = ifp->if_l2com;
1129 struct rt2560_rx_desc *desc;
1130 struct rt2560_rx_data *data;
1131 bus_addr_t physaddr;
1132 struct ieee80211_frame *wh;
1133 struct ieee80211_node *ni;
1134 struct mbuf *mnew, *m;
1138 /* retrieve last decriptor index processed by cipher engine */
1139 hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
1140 hw /= RT2560_RX_DESC_SIZE;
1142 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1143 BUS_DMASYNC_POSTREAD);
1145 for (; sc->rxq.cur_decrypt != hw;) {
1146 desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
1147 data = &sc->rxq.data[sc->rxq.cur_decrypt];
1149 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1150 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1158 if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
1159 (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) {
1165 * Try to allocate a new mbuf for this ring element and load it
1166 * before processing the current mbuf. If the ring element
1167 * cannot be loaded, drop the received packet and reuse the old
1168 * mbuf. In the unlikely case that the old mbuf can't be
1169 * reloaded either, explicitly panic.
1171 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1177 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1178 BUS_DMASYNC_POSTREAD);
1179 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1181 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1182 mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
1187 /* try to reload the old mbuf */
1188 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1189 mtod(data->m, void *), MCLBYTES,
1190 rt2560_dma_map_addr, &physaddr, 0);
1192 /* very unlikely that it will fail... */
1193 panic("%s: could not load old rx mbuf",
1194 device_get_name(sc->sc_dev));
1201 * New mbuf successfully loaded, update Rx ring and continue
1206 desc->physaddr = htole32(physaddr);
1209 m->m_pkthdr.rcvif = ifp;
1210 m->m_pkthdr.len = m->m_len =
1211 (le32toh(desc->flags) >> 16) & 0xfff;
1213 rssi = RT2560_RSSI(sc, desc->rssi);
1214 nf = RT2560_NOISE_FLOOR;
1215 if (ieee80211_radiotap_active(ic)) {
1216 struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
1217 uint32_t tsf_lo, tsf_hi;
1219 /* get timestamp (low and high 32 bits) */
1220 tsf_hi = RAL_READ(sc, RT2560_CSR17);
1221 tsf_lo = RAL_READ(sc, RT2560_CSR16);
1224 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1226 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1227 (desc->flags & htole32(RT2560_RX_OFDM)) ?
1228 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1229 tap->wr_antenna = sc->rx_ant;
1230 tap->wr_antsignal = nf + rssi;
1231 tap->wr_antnoise = nf;
1234 sc->sc_flags |= RT2560_F_INPUT_RUNNING;
1236 wh = mtod(m, struct ieee80211_frame *);
1237 ni = ieee80211_find_rxnode(ic,
1238 (struct ieee80211_frame_min *)wh);
1240 (void) ieee80211_input(ni, m, rssi, nf);
1241 ieee80211_free_node(ni);
1243 (void) ieee80211_input_all(ic, m, rssi, nf);
1246 sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
1247 skip: desc->flags = htole32(RT2560_RX_BUSY);
1249 DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
1251 sc->rxq.cur_decrypt =
1252 (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
1255 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1256 BUS_DMASYNC_PREWRITE);
1260 * Some frames were received. Pass them to the hardware cipher engine before
1261 * sending them to the 802.11 layer.
1264 rt2560_rx_intr(struct rt2560_softc *sc)
1266 struct rt2560_rx_desc *desc;
1267 struct rt2560_rx_data *data;
1269 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1270 BUS_DMASYNC_POSTREAD);
1273 desc = &sc->rxq.desc[sc->rxq.cur];
1274 data = &sc->rxq.data[sc->rxq.cur];
1276 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1277 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1282 if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
1283 (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
1285 * This should not happen since we did not request
1286 * to receive those frames when we filled RXCSR0.
1288 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1289 le32toh(desc->flags));
1293 if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
1294 DPRINTFN(sc, 5, "%s\n", "bad length");
1298 /* mark the frame for decryption */
1299 desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
1301 DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
1303 sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
1306 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1307 BUS_DMASYNC_PREWRITE);
1310 RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
1314 rt2560_beacon_update(struct ieee80211vap *vap, int item)
1316 struct rt2560_vap *rvp = RT2560_VAP(vap);
1317 struct ieee80211_beacon_offsets *bo = &rvp->ral_bo;
1319 setbit(bo->bo_flags, item);
1323 * This function is called periodically in IBSS mode when a new beacon must be
1327 rt2560_beacon_expire(struct rt2560_softc *sc)
1329 struct ifnet *ifp = sc->sc_ifp;
1330 struct ieee80211com *ic = ifp->if_l2com;
1331 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1332 struct rt2560_vap *rvp = RT2560_VAP(vap);
1333 struct rt2560_tx_data *data;
1335 if (ic->ic_opmode != IEEE80211_M_IBSS &&
1336 ic->ic_opmode != IEEE80211_M_HOSTAP &&
1337 ic->ic_opmode != IEEE80211_M_MBSS)
1340 data = &sc->bcnq.data[sc->bcnq.next];
1342 * Don't send beacon if bsschan isn't set
1344 if (data->ni == NULL)
1347 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1348 bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
1350 /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
1351 ieee80211_beacon_update(data->ni, &rvp->ral_bo, data->m, 1);
1353 rt2560_tx_bcn(sc, data->m, data->ni);
1355 DPRINTFN(sc, 15, "%s", "beacon expired\n");
1357 sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
1362 rt2560_wakeup_expire(struct rt2560_softc *sc)
1364 DPRINTFN(sc, 2, "%s", "wakeup expired\n");
1368 rt2560_intr(void *arg)
1370 struct rt2560_softc *sc = arg;
1371 struct ifnet *ifp = sc->sc_ifp;
1376 /* disable interrupts */
1377 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
1379 /* don't re-enable interrupts if we're shutting down */
1380 if (!(ifp->if_flags & IFF_RUNNING)) {
1385 r = RAL_READ(sc, RT2560_CSR7);
1386 RAL_WRITE(sc, RT2560_CSR7, r);
1388 if (r & RT2560_BEACON_EXPIRE)
1389 rt2560_beacon_expire(sc);
1391 if (r & RT2560_WAKEUP_EXPIRE)
1392 rt2560_wakeup_expire(sc);
1394 if (r & RT2560_ENCRYPTION_DONE)
1395 rt2560_encryption_intr(sc);
1397 if (r & RT2560_TX_DONE)
1400 if (r & RT2560_PRIO_DONE)
1401 rt2560_prio_intr(sc);
1403 if (r & RT2560_DECRYPTION_DONE)
1404 rt2560_decryption_intr(sc);
1406 if (r & RT2560_RX_DONE) {
1408 rt2560_encryption_intr(sc);
1411 /* re-enable interrupts */
1412 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
1417 #define RAL_SIFS 10 /* us */
1419 #define RT2560_TXRX_TURNAROUND 10 /* us */
1422 rt2560_plcp_signal(int rate)
1425 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1426 case 12: return 0xb;
1427 case 18: return 0xf;
1428 case 24: return 0xa;
1429 case 36: return 0xe;
1430 case 48: return 0x9;
1431 case 72: return 0xd;
1432 case 96: return 0x8;
1433 case 108: return 0xc;
1435 /* CCK rates (NB: not IEEE std, device-specific) */
1438 case 11: return 0x2;
1439 case 22: return 0x3;
1441 return 0xff; /* XXX unsupported/unknown rate */
1445 rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
1446 uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
1448 struct ifnet *ifp = sc->sc_ifp;
1449 struct ieee80211com *ic = ifp->if_l2com;
1450 uint16_t plcp_length;
1453 desc->flags = htole32(flags);
1454 desc->flags |= htole32(len << 16);
1456 desc->physaddr = htole32(physaddr);
1457 desc->wme = htole16(
1459 RT2560_LOGCWMIN(3) |
1460 RT2560_LOGCWMAX(8));
1462 /* setup PLCP fields */
1463 desc->plcp_signal = rt2560_plcp_signal(rate);
1464 desc->plcp_service = 4;
1466 len += IEEE80211_CRC_LEN;
1467 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1468 desc->flags |= htole32(RT2560_TX_OFDM);
1470 plcp_length = len & 0xfff;
1471 desc->plcp_length_hi = plcp_length >> 6;
1472 desc->plcp_length_lo = plcp_length & 0x3f;
1474 plcp_length = (16 * len + rate - 1) / rate;
1476 remainder = (16 * len) % 22;
1477 if (remainder != 0 && remainder < 7)
1478 desc->plcp_service |= RT2560_PLCP_LENGEXT;
1480 desc->plcp_length_hi = plcp_length >> 8;
1481 desc->plcp_length_lo = plcp_length & 0xff;
1483 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1484 desc->plcp_signal |= 0x08;
1488 desc->flags |= htole32(RT2560_TX_VALID);
1489 desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
1490 : htole32(RT2560_TX_BUSY);
1494 rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
1495 struct ieee80211_node *ni)
1497 struct ieee80211vap *vap = ni->ni_vap;
1498 struct rt2560_tx_desc *desc;
1499 struct rt2560_tx_data *data;
1500 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1501 int nsegs, rate, error;
1503 desc = &sc->bcnq.desc[sc->bcnq.cur];
1504 data = &sc->bcnq.data[sc->bcnq.cur];
1506 /* XXX maybe a separate beacon rate? */
1507 rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
1509 error = bus_dmamap_load_mbuf_segment(sc->bcnq.data_dmat, data->map, m0,
1510 segs, 1, &nsegs, BUS_DMA_NOWAIT);
1512 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1518 if (ieee80211_radiotap_active_vap(vap)) {
1519 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1522 tap->wt_rate = rate;
1523 tap->wt_antenna = sc->tx_ant;
1525 ieee80211_radiotap_tx(vap, m0);
1531 rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
1532 RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr);
1534 DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
1535 m0->m_pkthdr.len, sc->bcnq.cur, rate);
1537 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1538 bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
1539 BUS_DMASYNC_PREWRITE);
1541 sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
1547 rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
1548 struct ieee80211_node *ni)
1550 struct ieee80211vap *vap = ni->ni_vap;
1551 struct ieee80211com *ic = ni->ni_ic;
1552 struct rt2560_tx_desc *desc;
1553 struct rt2560_tx_data *data;
1554 struct ieee80211_frame *wh;
1555 struct ieee80211_key *k;
1556 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1559 int nsegs, rate, error;
1561 desc = &sc->prioq.desc[sc->prioq.cur];
1562 data = &sc->prioq.data[sc->prioq.cur];
1564 rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
1566 wh = mtod(m0, struct ieee80211_frame *);
1568 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1569 k = ieee80211_crypto_encap(ni, m0);
1576 error = bus_dmamap_load_mbuf_segment(sc->prioq.data_dmat, data->map, m0,
1577 segs, 1, &nsegs, 0);
1579 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1585 if (ieee80211_radiotap_active_vap(vap)) {
1586 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1589 tap->wt_rate = rate;
1590 tap->wt_antenna = sc->tx_ant;
1592 ieee80211_radiotap_tx(vap, m0);
1597 /* management frames are not taken into account for amrr */
1598 data->rix = IEEE80211_FIXED_RATE_NONE;
1600 wh = mtod(m0, struct ieee80211_frame *);
1602 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1603 flags |= RT2560_TX_ACK;
1605 dur = ieee80211_ack_duration(ic->ic_rt,
1606 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1607 *(uint16_t *)wh->i_dur = htole16(dur);
1609 /* tell hardware to add timestamp for probe responses */
1610 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1611 IEEE80211_FC0_TYPE_MGT &&
1612 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1613 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1614 flags |= RT2560_TX_TIMESTAMP;
1617 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
1620 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1621 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1622 BUS_DMASYNC_PREWRITE);
1624 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1625 m0->m_pkthdr.len, sc->prioq.cur, rate);
1629 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1630 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1636 rt2560_sendprot(struct rt2560_softc *sc,
1637 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1639 struct ieee80211com *ic = ni->ni_ic;
1640 const struct ieee80211_frame *wh;
1641 struct rt2560_tx_desc *desc;
1642 struct rt2560_tx_data *data;
1644 int protrate, ackrate, pktlen, flags, isshort, error;
1646 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1649 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1650 ("protection %d", prot));
1652 wh = mtod(m, const struct ieee80211_frame *);
1653 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1655 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1656 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1658 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1659 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1660 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1661 flags = RT2560_TX_MORE_FRAG;
1662 if (prot == IEEE80211_PROT_RTSCTS) {
1663 /* NB: CTS is the same size as an ACK */
1664 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1665 flags |= RT2560_TX_ACK;
1666 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1668 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1670 if (mprot == NULL) {
1671 /* XXX stat + msg */
1675 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1676 data = &sc->txq.data[sc->txq.cur_encrypt];
1678 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map,
1679 mprot, segs, 1, &nsegs, 0);
1681 device_printf(sc->sc_dev,
1682 "could not map mbuf (error %d)\n", error);
1688 data->ni = ieee80211_ref_node(ni);
1689 /* ctl frames are not taken into account for amrr */
1690 data->rix = IEEE80211_FIXED_RATE_NONE;
1692 rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
1695 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1696 BUS_DMASYNC_PREWRITE);
1699 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1705 rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
1706 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
1708 struct ieee80211vap *vap = ni->ni_vap;
1709 struct ieee80211com *ic = ni->ni_ic;
1710 struct rt2560_tx_desc *desc;
1711 struct rt2560_tx_data *data;
1712 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1714 int nsegs, rate, error;
1716 desc = &sc->prioq.desc[sc->prioq.cur];
1717 data = &sc->prioq.data[sc->prioq.cur];
1719 rate = params->ibp_rate0;
1720 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1721 /* XXX fall back to mcast/mgmt rate? */
1727 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1728 flags |= RT2560_TX_ACK;
1729 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1730 error = rt2560_sendprot(sc, m0, ni,
1731 params->ibp_flags & IEEE80211_BPF_RTS ?
1732 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1738 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1741 error = bus_dmamap_load_mbuf_segment(sc->prioq.data_dmat, data->map, m0,
1742 segs, 1, &nsegs, 0);
1744 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1750 if (ieee80211_radiotap_active_vap(vap)) {
1751 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1754 tap->wt_rate = rate;
1755 tap->wt_antenna = sc->tx_ant;
1757 ieee80211_radiotap_tx(ni->ni_vap, m0);
1763 /* XXX need to setup descriptor ourself */
1764 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
1765 rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
1768 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1769 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1770 BUS_DMASYNC_PREWRITE);
1772 DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n",
1773 m0->m_pkthdr.len, sc->prioq.cur, rate);
1777 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1778 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1784 rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
1785 struct ieee80211_node *ni)
1787 struct ieee80211vap *vap = ni->ni_vap;
1788 struct ieee80211com *ic = ni->ni_ic;
1789 struct rt2560_tx_desc *desc;
1790 struct rt2560_tx_data *data;
1791 struct ieee80211_frame *wh;
1792 const struct ieee80211_txparam *tp;
1793 struct ieee80211_key *k;
1795 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1798 int nsegs, rate, error;
1800 wh = mtod(m0, struct ieee80211_frame *);
1802 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1803 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1804 rate = tp->mcastrate;
1805 } else if (m0->m_flags & M_EAPOL) {
1806 rate = tp->mgmtrate;
1807 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1808 rate = tp->ucastrate;
1810 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1811 rate = ni->ni_txrate;
1814 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1815 k = ieee80211_crypto_encap(ni, m0);
1821 /* packet header may have moved, reset our local pointer */
1822 wh = mtod(m0, struct ieee80211_frame *);
1826 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1827 int prot = IEEE80211_PROT_NONE;
1828 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1829 prot = IEEE80211_PROT_RTSCTS;
1830 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1831 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1832 prot = ic->ic_protmode;
1833 if (prot != IEEE80211_PROT_NONE) {
1834 error = rt2560_sendprot(sc, m0, ni, prot, rate);
1839 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1843 data = &sc->txq.data[sc->txq.cur_encrypt];
1844 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1846 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map, m0,
1847 segs, 1, &nsegs, 0);
1848 if (error != 0 && error != EFBIG) {
1849 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1855 mnew = m_defrag(m0, MB_DONTWAIT);
1857 device_printf(sc->sc_dev,
1858 "could not defragment mbuf\n");
1864 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map,
1865 m0, segs, 1, &nsegs, 0);
1867 device_printf(sc->sc_dev,
1868 "could not map mbuf (error %d)\n", error);
1873 /* packet header may have moved, reset our local pointer */
1874 wh = mtod(m0, struct ieee80211_frame *);
1877 if (ieee80211_radiotap_active_vap(vap)) {
1878 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1881 tap->wt_rate = rate;
1882 tap->wt_antenna = sc->tx_ant;
1884 ieee80211_radiotap_tx(vap, m0);
1890 /* remember link conditions for rate adaptation algorithm */
1891 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1892 data->rix = ni->ni_txrate;
1893 /* XXX probably need last rssi value and not avg */
1894 data->rssi = ic->ic_node_getrssi(ni);
1896 data->rix = IEEE80211_FIXED_RATE_NONE;
1898 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1899 flags |= RT2560_TX_ACK;
1901 dur = ieee80211_ack_duration(ic->ic_rt,
1902 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1903 *(uint16_t *)wh->i_dur = htole16(dur);
1906 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
1909 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1910 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1911 BUS_DMASYNC_PREWRITE);
1913 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1914 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
1918 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1919 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
1925 rt2560_start_locked(struct ifnet *ifp)
1927 struct rt2560_softc *sc = ifp->if_softc;
1929 struct ieee80211_node *ni;
1934 IF_DEQUEUE(&ifp->if_snd, m);
1937 if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
1938 IF_PREPEND(&ifp->if_snd, m);
1939 ifp->if_flags |= IFF_OACTIVE;
1940 sc->sc_flags |= RT2560_F_DATA_OACTIVE;
1943 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1944 if (rt2560_tx_data(sc, m, ni) != 0) {
1945 ieee80211_free_node(ni);
1950 sc->sc_tx_timer = 5;
1955 rt2560_start(struct ifnet *ifp)
1958 rt2560_start_locked(ifp);
1963 rt2560_watchdog(void *arg)
1965 struct rt2560_softc *sc = arg;
1966 struct ifnet *ifp = sc->sc_ifp;
1970 KASSERT(ifp->if_flags & IFF_RUNNING, ("not running"));
1972 if (sc->sc_invalid) /* card ejected */
1975 rt2560_encryption_intr(sc);
1978 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1979 if_printf(ifp, "device timeout\n");
1980 rt2560_init_locked(sc);
1982 /* NB: callout is reset in rt2560_init() */
1985 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
1990 rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
1992 struct rt2560_softc *sc = ifp->if_softc;
1993 struct ieee80211com *ic = ifp->if_l2com;
1994 struct ifreq *ifr = (struct ifreq *) data;
1995 int error = 0, startall = 0;
2000 if (ifp->if_flags & IFF_UP) {
2001 if ((ifp->if_flags & IFF_RUNNING) == 0) {
2002 rt2560_init_locked(sc);
2005 rt2560_update_promisc(ifp);
2007 if (ifp->if_flags & IFF_RUNNING)
2008 rt2560_stop_locked(sc);
2012 ieee80211_start_all(ic);
2015 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2018 error = ether_ioctl(ifp, cmd, data);
2028 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
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 write to BBP\n");
2043 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
2044 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
2046 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
2050 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
2055 for (ntries = 0; ntries < 100; ntries++) {
2056 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2060 if (ntries == 100) {
2061 device_printf(sc->sc_dev, "could not read from BBP\n");
2065 val = RT2560_BBP_BUSY | reg << 8;
2066 RAL_WRITE(sc, RT2560_BBPCSR, val);
2068 for (ntries = 0; ntries < 100; ntries++) {
2069 val = RAL_READ(sc, RT2560_BBPCSR);
2070 if (!(val & RT2560_BBP_BUSY))
2075 device_printf(sc->sc_dev, "could not read from BBP\n");
2080 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2085 for (ntries = 0; ntries < 100; ntries++) {
2086 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2090 if (ntries == 100) {
2091 device_printf(sc->sc_dev, "could not write to RF\n");
2095 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2097 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2099 /* remember last written value in sc */
2100 sc->rf_regs[reg] = val;
2102 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2106 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2108 struct ifnet *ifp = sc->sc_ifp;
2109 struct ieee80211com *ic = ifp->if_l2com;
2113 chan = ieee80211_chan2ieee(ic, c);
2114 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2116 if (IEEE80211_IS_CHAN_2GHZ(c))
2117 power = min(sc->txpow[chan - 1], 31);
2121 /* adjust txpower using ifconfig settings */
2122 power -= (100 - ic->ic_txpowlimit) / 8;
2124 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2126 switch (sc->rf_rev) {
2127 case RT2560_RF_2522:
2128 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2129 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2130 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2133 case RT2560_RF_2523:
2134 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2135 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2136 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2137 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2140 case RT2560_RF_2524:
2141 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2142 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2143 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2144 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2147 case RT2560_RF_2525:
2148 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2149 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2150 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2151 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2153 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2154 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2155 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2156 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2159 case RT2560_RF_2525E:
2160 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2161 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2162 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2163 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2166 case RT2560_RF_2526:
2167 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2168 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2169 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2171 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2172 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2173 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2177 case RT2560_RF_5222:
2178 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2180 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2181 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2182 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2183 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2186 kprintf("unknown ral rev=%d\n", sc->rf_rev);
2190 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2191 /* set Japan filter bit for channel 14 */
2192 tmp = rt2560_bbp_read(sc, 70);
2194 tmp &= ~RT2560_JAPAN_FILTER;
2196 tmp |= RT2560_JAPAN_FILTER;
2198 rt2560_bbp_write(sc, 70, tmp);
2200 /* clear CRC errors */
2201 RAL_READ(sc, RT2560_CNT0);
2206 rt2560_set_channel(struct ieee80211com *ic)
2208 struct ifnet *ifp = ic->ic_ifp;
2209 struct rt2560_softc *sc = ifp->if_softc;
2212 rt2560_set_chan(sc, ic->ic_curchan);
2219 * Disable RF auto-tuning.
2222 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2226 if (sc->rf_rev != RT2560_RF_2523) {
2227 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2228 rt2560_rf_write(sc, RAL_RF1, tmp);
2231 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2232 rt2560_rf_write(sc, RAL_RF3, tmp);
2234 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2239 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2243 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2245 struct ifnet *ifp = sc->sc_ifp;
2246 struct ieee80211com *ic = ifp->if_l2com;
2247 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2248 uint16_t logcwmin, preload;
2251 /* first, disable TSF synchronization */
2252 RAL_WRITE(sc, RT2560_CSR14, 0);
2254 tmp = 16 * vap->iv_bss->ni_intval;
2255 RAL_WRITE(sc, RT2560_CSR12, tmp);
2257 RAL_WRITE(sc, RT2560_CSR13, 0);
2260 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2261 tmp = logcwmin << 16 | preload;
2262 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2264 /* finally, enable TSF synchronization */
2265 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2266 if (ic->ic_opmode == IEEE80211_M_STA)
2267 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2269 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2270 RT2560_ENABLE_BEACON_GENERATOR;
2271 RAL_WRITE(sc, RT2560_CSR14, tmp);
2273 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2277 rt2560_enable_tsf(struct rt2560_softc *sc)
2279 RAL_WRITE(sc, RT2560_CSR14, 0);
2280 RAL_WRITE(sc, RT2560_CSR14,
2281 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
2285 rt2560_update_plcp(struct rt2560_softc *sc)
2287 struct ifnet *ifp = sc->sc_ifp;
2288 struct ieee80211com *ic = ifp->if_l2com;
2290 /* no short preamble for 1Mbps */
2291 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2293 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2294 /* values taken from the reference driver */
2295 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2296 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2297 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2299 /* same values as above or'ed 0x8 */
2300 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2301 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2302 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2305 DPRINTF(sc, "updating PLCP for %s preamble\n",
2306 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2310 * This function can be called by ieee80211_set_shortslottime(). Refer to
2311 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2314 rt2560_update_slot(struct ifnet *ifp)
2316 struct rt2560_softc *sc = ifp->if_softc;
2317 struct ieee80211com *ic = ifp->if_l2com;
2319 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2322 #ifndef FORCE_SLOTTIME
2323 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
2326 * Setting slot time according to "short slot time" capability
2327 * in beacon/probe_resp seems to cause problem to acknowledge
2328 * certain AP's data frames transimitted at CCK/DS rates: the
2329 * problematic AP keeps retransmitting data frames, probably
2330 * because MAC level acks are not received by hardware.
2331 * So we cheat a little bit here by claiming we are capable of
2332 * "short slot time" but setting hardware slot time to the normal
2333 * slot time. ral(4) does not seem to have trouble to receive
2334 * frames transmitted using short slot time even if hardware
2335 * slot time is set to normal slot time. If we didn't use this
2336 * trick, we would have to claim that short slot time is not
2337 * supported; this would give relative poor RX performance
2338 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2344 /* update the MAC slot boundaries */
2345 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2346 tx_pifs = tx_sifs + slottime;
2347 tx_difs = tx_sifs + 2 * slottime;
2348 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2350 tmp = RAL_READ(sc, RT2560_CSR11);
2351 tmp = (tmp & ~0x1f00) | slottime << 8;
2352 RAL_WRITE(sc, RT2560_CSR11, tmp);
2354 tmp = tx_pifs << 16 | tx_sifs;
2355 RAL_WRITE(sc, RT2560_CSR18, tmp);
2357 tmp = eifs << 16 | tx_difs;
2358 RAL_WRITE(sc, RT2560_CSR19, tmp);
2360 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2364 rt2560_set_basicrates(struct rt2560_softc *sc)
2366 struct ifnet *ifp = sc->sc_ifp;
2367 struct ieee80211com *ic = ifp->if_l2com;
2369 /* update basic rate set */
2370 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2371 /* 11b basic rates: 1, 2Mbps */
2372 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x3);
2373 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) {
2374 /* 11a basic rates: 6, 12, 24Mbps */
2375 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x150);
2377 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
2378 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x15f);
2383 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2387 /* set ON period to 70ms and OFF period to 30ms */
2388 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2389 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2393 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2397 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2398 RAL_WRITE(sc, RT2560_CSR5, tmp);
2400 tmp = bssid[4] | bssid[5] << 8;
2401 RAL_WRITE(sc, RT2560_CSR6, tmp);
2403 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":");
2407 rt2560_set_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2411 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2412 RAL_WRITE(sc, RT2560_CSR3, tmp);
2414 tmp = addr[4] | addr[5] << 8;
2415 RAL_WRITE(sc, RT2560_CSR4, tmp);
2417 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":");
2421 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2425 tmp = RAL_READ(sc, RT2560_CSR3);
2426 addr[0] = tmp & 0xff;
2427 addr[1] = (tmp >> 8) & 0xff;
2428 addr[2] = (tmp >> 16) & 0xff;
2429 addr[3] = (tmp >> 24);
2431 tmp = RAL_READ(sc, RT2560_CSR4);
2432 addr[4] = tmp & 0xff;
2433 addr[5] = (tmp >> 8) & 0xff;
2437 rt2560_update_promisc(struct ifnet *ifp)
2439 struct rt2560_softc *sc = ifp->if_softc;
2442 tmp = RAL_READ(sc, RT2560_RXCSR0);
2444 tmp &= ~RT2560_DROP_NOT_TO_ME;
2445 if (!(ifp->if_flags & IFF_PROMISC))
2446 tmp |= RT2560_DROP_NOT_TO_ME;
2448 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2450 DPRINTF(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
2451 "entering" : "leaving");
2455 rt2560_get_rf(int rev)
2458 case RT2560_RF_2522: return "RT2522";
2459 case RT2560_RF_2523: return "RT2523";
2460 case RT2560_RF_2524: return "RT2524";
2461 case RT2560_RF_2525: return "RT2525";
2462 case RT2560_RF_2525E: return "RT2525e";
2463 case RT2560_RF_2526: return "RT2526";
2464 case RT2560_RF_5222: return "RT5222";
2465 default: return "unknown";
2470 rt2560_read_config(struct rt2560_softc *sc)
2475 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2476 sc->rf_rev = (val >> 11) & 0x7;
2477 sc->hw_radio = (val >> 10) & 0x1;
2478 sc->led_mode = (val >> 6) & 0x7;
2479 sc->rx_ant = (val >> 4) & 0x3;
2480 sc->tx_ant = (val >> 2) & 0x3;
2481 sc->nb_ant = val & 0x3;
2483 /* read default values for BBP registers */
2484 for (i = 0; i < 16; i++) {
2485 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2486 if (val == 0 || val == 0xffff)
2489 sc->bbp_prom[i].reg = val >> 8;
2490 sc->bbp_prom[i].val = val & 0xff;
2493 /* read Tx power for all b/g channels */
2494 for (i = 0; i < 14 / 2; i++) {
2495 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2496 sc->txpow[i * 2] = val & 0xff;
2497 sc->txpow[i * 2 + 1] = val >> 8;
2499 for (i = 0; i < 14; ++i) {
2500 if (sc->txpow[i] > 31)
2504 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2505 if ((val & 0xff) == 0xff)
2506 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2508 sc->rssi_corr = val & 0xff;
2509 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2510 sc->rssi_corr, val);
2515 rt2560_scan_start(struct ieee80211com *ic)
2517 struct ifnet *ifp = ic->ic_ifp;
2518 struct rt2560_softc *sc = ifp->if_softc;
2520 /* abort TSF synchronization */
2521 RAL_WRITE(sc, RT2560_CSR14, 0);
2522 rt2560_set_bssid(sc, ifp->if_broadcastaddr);
2526 rt2560_scan_end(struct ieee80211com *ic)
2528 struct ifnet *ifp = ic->ic_ifp;
2529 struct rt2560_softc *sc = ifp->if_softc;
2530 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2532 rt2560_enable_tsf_sync(sc);
2533 /* XXX keep local copy */
2534 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2538 rt2560_bbp_init(struct rt2560_softc *sc)
2540 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2543 /* wait for BBP to be ready */
2544 for (ntries = 0; ntries < 100; ntries++) {
2545 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2549 if (ntries == 100) {
2550 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2554 /* initialize BBP registers to default values */
2555 for (i = 0; i < N(rt2560_def_bbp); i++) {
2556 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2557 rt2560_def_bbp[i].val);
2560 /* initialize BBP registers to values stored in EEPROM */
2561 for (i = 0; i < 16; i++) {
2562 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2564 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2566 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2573 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2578 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2580 tx |= RT2560_BBP_ANTA;
2581 else if (antenna == 2)
2582 tx |= RT2560_BBP_ANTB;
2584 tx |= RT2560_BBP_DIVERSITY;
2586 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2587 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2588 sc->rf_rev == RT2560_RF_5222)
2589 tx |= RT2560_BBP_FLIPIQ;
2591 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2593 /* update values for CCK and OFDM in BBPCSR1 */
2594 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2595 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2596 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2600 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2604 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2606 rx |= RT2560_BBP_ANTA;
2607 else if (antenna == 2)
2608 rx |= RT2560_BBP_ANTB;
2610 rx |= RT2560_BBP_DIVERSITY;
2612 /* need to force no I/Q flip for RF 2525e and 2526 */
2613 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2614 rx &= ~RT2560_BBP_FLIPIQ;
2616 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2620 rt2560_init_locked(struct rt2560_softc *sc)
2622 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2623 struct ifnet *ifp = sc->sc_ifp;
2624 struct ieee80211com *ic = ifp->if_l2com;
2630 rt2560_stop_locked(sc);
2632 /* setup tx rings */
2633 tmp = RT2560_PRIO_RING_COUNT << 24 |
2634 RT2560_ATIM_RING_COUNT << 16 |
2635 RT2560_TX_RING_COUNT << 8 |
2636 RT2560_TX_DESC_SIZE;
2638 /* rings must be initialized in this exact order */
2639 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2640 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2641 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2642 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2643 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2646 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2648 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2649 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2651 /* initialize MAC registers to default values */
2652 for (i = 0; i < N(rt2560_def_mac); i++)
2653 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2655 rt2560_set_macaddr(sc, IF_LLADDR(ifp));
2657 /* set basic rate set (will be updated later) */
2658 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2660 rt2560_update_slot(ifp);
2661 rt2560_update_plcp(sc);
2662 rt2560_update_led(sc, 0, 0);
2664 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2665 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2667 if (rt2560_bbp_init(sc) != 0) {
2673 rt2560_set_txantenna(sc, sc->tx_ant);
2674 rt2560_set_rxantenna(sc, sc->rx_ant);
2676 /* set default BSS channel */
2677 rt2560_set_chan(sc, ic->ic_curchan);
2680 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2681 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2682 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2683 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2684 ic->ic_opmode != IEEE80211_M_MBSS)
2685 tmp |= RT2560_DROP_TODS;
2686 if (!(ifp->if_flags & IFF_PROMISC))
2687 tmp |= RT2560_DROP_NOT_TO_ME;
2689 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2691 /* clear old FCS and Rx FIFO errors */
2692 RAL_READ(sc, RT2560_CNT0);
2693 RAL_READ(sc, RT2560_CNT4);
2695 /* clear any pending interrupts */
2696 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2698 /* enable interrupts */
2699 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2701 ifp->if_flags &= ~IFF_OACTIVE;
2702 ifp->if_flags |= IFF_RUNNING;
2704 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
2709 rt2560_init(void *priv)
2711 struct rt2560_softc *sc = priv;
2712 struct ifnet *ifp = sc->sc_ifp;
2713 struct ieee80211com *ic = ifp->if_l2com;
2716 rt2560_init_locked(sc);
2719 if (ifp->if_flags & IFF_RUNNING)
2720 ieee80211_start_all(ic); /* start all vap's */
2724 rt2560_stop_locked(struct rt2560_softc *sc)
2726 struct ifnet *ifp = sc->sc_ifp;
2727 volatile int *flags = &sc->sc_flags;
2731 while (*flags & RT2560_F_INPUT_RUNNING)
2732 lksleep(sc, &sc->sc_lock, 0, "ralrunning", hz/10);
2734 callout_stop(&sc->watchdog_ch);
2735 sc->sc_tx_timer = 0;
2737 if (ifp->if_flags & IFF_RUNNING) {
2738 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
2741 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2744 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2746 /* reset ASIC (imply reset BBP) */
2747 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2748 RAL_WRITE(sc, RT2560_CSR1, 0);
2750 /* disable interrupts */
2751 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2753 /* reset Tx and Rx rings */
2754 rt2560_reset_tx_ring(sc, &sc->txq);
2755 rt2560_reset_tx_ring(sc, &sc->atimq);
2756 rt2560_reset_tx_ring(sc, &sc->prioq);
2757 rt2560_reset_tx_ring(sc, &sc->bcnq);
2758 rt2560_reset_rx_ring(sc, &sc->rxq);
2760 sc->sc_flags &= ~(RT2560_F_PRIO_OACTIVE | RT2560_F_DATA_OACTIVE);
2764 rt2560_stop(void *arg)
2766 struct rt2560_softc *sc = arg;
2769 rt2560_stop_locked(sc);
2774 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2775 const struct ieee80211_bpf_params *params)
2777 struct ieee80211com *ic = ni->ni_ic;
2778 struct ifnet *ifp = ic->ic_ifp;
2779 struct rt2560_softc *sc = ifp->if_softc;
2783 /* prevent management frames from being sent if we're not ready */
2784 if (!(ifp->if_flags & IFF_RUNNING)) {
2787 ieee80211_free_node(ni);
2790 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2791 ifp->if_flags |= IFF_OACTIVE;
2792 sc->sc_flags |= RT2560_F_PRIO_OACTIVE;
2795 ieee80211_free_node(ni);
2796 return ENOBUFS; /* XXX */
2801 if (params == NULL) {
2803 * Legacy path; interpret frame contents to decide
2804 * precisely how to send the frame.
2806 if (rt2560_tx_mgt(sc, m, ni) != 0)
2810 * Caller supplied explicit parameters to use in
2811 * sending the frame.
2813 if (rt2560_tx_raw(sc, m, ni, params))
2816 sc->sc_tx_timer = 5;
2823 ieee80211_free_node(ni);
2825 return EIO; /* XXX */