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.
20 #include <sys/cdefs.h>
21 __FBSDID("$FreeBSD$");
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>
42 #include <machine/bus.h>
43 #include <machine/resource.h>
48 #include <net/if_arp.h>
49 #include <net/ethernet.h>
50 #include <net/if_dl.h>
51 #include <net/if_media.h>
52 #include <net/if_types.h>
54 #include <net80211/ieee80211_var.h>
55 #include <net80211/ieee80211_radiotap.h>
56 #include <net80211/ieee80211_regdomain.h>
57 #include <net80211/ieee80211_ratectl.h>
59 #include <netinet/in.h>
60 #include <netinet/in_systm.h>
61 #include <netinet/in_var.h>
62 #include <netinet/ip.h>
63 #include <netinet/if_ether.h>
65 #include <dev/ral/rt2560reg.h>
66 #include <dev/ral/rt2560var.h>
68 #define RT2560_RSSI(sc, rssi) \
69 ((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \
70 ((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0)
74 #define DPRINTF(sc, fmt, ...) do { \
75 if (sc->sc_debug > 0) \
76 printf(fmt, __VA_ARGS__); \
78 #define DPRINTFN(sc, n, fmt, ...) do { \
79 if (sc->sc_debug >= (n)) \
80 printf(fmt, __VA_ARGS__); \
83 #define DPRINTF(sc, fmt, ...)
84 #define DPRINTFN(sc, n, fmt, ...)
87 static struct ieee80211vap *rt2560_vap_create(struct ieee80211com *,
88 const char name[IFNAMSIZ], int unit, int opmode,
89 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
90 const uint8_t mac[IEEE80211_ADDR_LEN]);
91 static void rt2560_vap_delete(struct ieee80211vap *);
92 static void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int,
94 static int rt2560_alloc_tx_ring(struct rt2560_softc *,
95 struct rt2560_tx_ring *, int);
96 static void rt2560_reset_tx_ring(struct rt2560_softc *,
97 struct rt2560_tx_ring *);
98 static void rt2560_free_tx_ring(struct rt2560_softc *,
99 struct rt2560_tx_ring *);
100 static int rt2560_alloc_rx_ring(struct rt2560_softc *,
101 struct rt2560_rx_ring *, int);
102 static void rt2560_reset_rx_ring(struct rt2560_softc *,
103 struct rt2560_rx_ring *);
104 static void rt2560_free_rx_ring(struct rt2560_softc *,
105 struct rt2560_rx_ring *);
106 static void rt2560_newassoc(struct ieee80211_node *, int);
107 static int rt2560_newstate(struct ieee80211vap *,
108 enum ieee80211_state, int);
109 static uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
110 static void rt2560_encryption_intr(struct rt2560_softc *);
111 static void rt2560_tx_intr(struct rt2560_softc *);
112 static void rt2560_prio_intr(struct rt2560_softc *);
113 static void rt2560_decryption_intr(struct rt2560_softc *);
114 static void rt2560_rx_intr(struct rt2560_softc *);
115 static void rt2560_beacon_update(struct ieee80211vap *, int item);
116 static void rt2560_beacon_expire(struct rt2560_softc *);
117 static void rt2560_wakeup_expire(struct rt2560_softc *);
118 static void rt2560_scan_start(struct ieee80211com *);
119 static void rt2560_scan_end(struct ieee80211com *);
120 static void rt2560_set_channel(struct ieee80211com *);
121 static void rt2560_setup_tx_desc(struct rt2560_softc *,
122 struct rt2560_tx_desc *, uint32_t, int, int, int,
124 static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
125 struct ieee80211_node *);
126 static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
127 struct ieee80211_node *);
128 static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
129 struct ieee80211_node *);
130 static void rt2560_start_locked(struct ifnet *);
131 static void rt2560_start(struct ifnet *);
132 static void rt2560_watchdog(void *);
133 static int rt2560_ioctl(struct ifnet *, u_long, caddr_t);
134 static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
136 static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
137 static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
139 static void rt2560_set_chan(struct rt2560_softc *,
140 struct ieee80211_channel *);
142 static void rt2560_disable_rf_tune(struct rt2560_softc *);
144 static void rt2560_enable_tsf_sync(struct rt2560_softc *);
145 static void rt2560_enable_tsf(struct rt2560_softc *);
146 static void rt2560_update_plcp(struct rt2560_softc *);
147 static void rt2560_update_slot(struct ifnet *);
148 static void rt2560_set_basicrates(struct rt2560_softc *);
149 static void rt2560_update_led(struct rt2560_softc *, int, int);
150 static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
151 static void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
152 static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
153 static void rt2560_update_promisc(struct ifnet *);
154 static const char *rt2560_get_rf(int);
155 static void rt2560_read_config(struct rt2560_softc *);
156 static int rt2560_bbp_init(struct rt2560_softc *);
157 static void rt2560_set_txantenna(struct rt2560_softc *, int);
158 static void rt2560_set_rxantenna(struct rt2560_softc *, int);
159 static void rt2560_init_locked(struct rt2560_softc *);
160 static void rt2560_init(void *);
161 static void rt2560_stop_locked(struct rt2560_softc *);
162 static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
163 const struct ieee80211_bpf_params *);
165 static const struct {
168 } rt2560_def_mac[] = {
172 static const struct {
175 } rt2560_def_bbp[] = {
179 static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
180 static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
181 static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
182 static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
183 static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
184 static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
185 static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
186 static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
188 static const struct {
191 } rt2560_rf5222[] = {
196 rt2560_attach(device_t dev, int id)
198 struct rt2560_softc *sc = device_get_softc(dev);
199 struct ieee80211com *ic;
203 uint8_t macaddr[IEEE80211_ADDR_LEN];
207 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
208 MTX_DEF | MTX_RECURSE);
210 callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
212 /* retrieve RT2560 rev. no */
213 sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
215 /* retrieve RF rev. no and various other things from EEPROM */
216 rt2560_read_config(sc);
218 device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
219 sc->asic_rev, rt2560_get_rf(sc->rf_rev));
222 * Allocate Tx and Rx rings.
224 error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
226 device_printf(sc->sc_dev, "could not allocate Tx ring\n");
230 error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
232 device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
236 error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
238 device_printf(sc->sc_dev, "could not allocate Prio ring\n");
242 error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
244 device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
248 error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
250 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
254 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
256 device_printf(sc->sc_dev, "can not if_alloc()\n");
261 /* retrieve MAC address */
262 rt2560_get_macaddr(sc, macaddr);
265 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
266 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
267 ifp->if_init = rt2560_init;
268 ifp->if_ioctl = rt2560_ioctl;
269 ifp->if_start = rt2560_start;
270 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
271 ifp->if_snd.ifq_drv_maxlen = 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_newassoc = rt2560_newassoc;
305 ic->ic_raw_xmit = rt2560_raw_xmit;
306 ic->ic_updateslot = rt2560_update_slot;
307 ic->ic_update_promisc = rt2560_update_promisc;
308 ic->ic_scan_start = rt2560_scan_start;
309 ic->ic_scan_end = rt2560_scan_end;
310 ic->ic_set_channel = rt2560_set_channel;
312 ic->ic_vap_create = rt2560_vap_create;
313 ic->ic_vap_delete = rt2560_vap_delete;
315 ieee80211_radiotap_attach(ic,
316 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
317 RT2560_TX_RADIOTAP_PRESENT,
318 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
319 RT2560_RX_RADIOTAP_PRESENT);
322 * Add a few sysctl knobs.
325 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
326 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
327 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
329 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
330 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
331 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
333 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
334 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
335 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
338 ieee80211_announce(ic);
342 fail6: rt2560_free_rx_ring(sc, &sc->rxq);
343 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
344 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
345 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
346 fail2: rt2560_free_tx_ring(sc, &sc->txq);
347 fail1: mtx_destroy(&sc->sc_mtx);
353 rt2560_detach(void *xsc)
355 struct rt2560_softc *sc = xsc;
356 struct ifnet *ifp = sc->sc_ifp;
357 struct ieee80211com *ic = ifp->if_l2com;
361 ieee80211_ifdetach(ic);
363 rt2560_free_tx_ring(sc, &sc->txq);
364 rt2560_free_tx_ring(sc, &sc->atimq);
365 rt2560_free_tx_ring(sc, &sc->prioq);
366 rt2560_free_tx_ring(sc, &sc->bcnq);
367 rt2560_free_rx_ring(sc, &sc->rxq);
371 mtx_destroy(&sc->sc_mtx);
376 static struct ieee80211vap *
377 rt2560_vap_create(struct ieee80211com *ic,
378 const char name[IFNAMSIZ], int unit, int opmode, int flags,
379 const uint8_t bssid[IEEE80211_ADDR_LEN],
380 const uint8_t mac[IEEE80211_ADDR_LEN])
382 struct ifnet *ifp = ic->ic_ifp;
383 struct rt2560_vap *rvp;
384 struct ieee80211vap *vap;
387 case IEEE80211_M_STA:
388 case IEEE80211_M_IBSS:
389 case IEEE80211_M_AHDEMO:
390 case IEEE80211_M_MONITOR:
391 case IEEE80211_M_HOSTAP:
392 case IEEE80211_M_MBSS:
394 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
395 if_printf(ifp, "only 1 vap supported\n");
398 if (opmode == IEEE80211_M_STA)
399 flags |= IEEE80211_CLONE_NOBEACONS;
401 case IEEE80211_M_WDS:
402 if (TAILQ_EMPTY(&ic->ic_vaps) ||
403 ic->ic_opmode != IEEE80211_M_HOSTAP) {
404 if_printf(ifp, "wds only supported in ap mode\n");
408 * Silently remove any request for a unique
409 * bssid; WDS vap's always share the local
412 flags &= ~IEEE80211_CLONE_BSSID;
415 if_printf(ifp, "unknown opmode %d\n", opmode);
418 rvp = (struct rt2560_vap *) malloc(sizeof(struct rt2560_vap),
419 M_80211_VAP, M_NOWAIT | M_ZERO);
423 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
425 /* override state transition machine */
426 rvp->ral_newstate = vap->iv_newstate;
427 vap->iv_newstate = rt2560_newstate;
428 vap->iv_update_beacon = rt2560_beacon_update;
430 ieee80211_ratectl_init(vap);
432 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
433 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
434 ic->ic_opmode = opmode;
439 rt2560_vap_delete(struct ieee80211vap *vap)
441 struct rt2560_vap *rvp = RT2560_VAP(vap);
443 ieee80211_ratectl_deinit(vap);
444 ieee80211_vap_detach(vap);
445 free(rvp, M_80211_VAP);
449 rt2560_resume(void *xsc)
451 struct rt2560_softc *sc = xsc;
452 struct ifnet *ifp = sc->sc_ifp;
454 if (ifp->if_flags & IFF_UP)
459 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
464 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
466 *(bus_addr_t *)arg = segs[0].ds_addr;
470 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
477 ring->cur = ring->next = 0;
478 ring->cur_encrypt = ring->next_encrypt = 0;
480 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
481 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
482 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
483 0, NULL, NULL, &ring->desc_dmat);
485 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
489 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
490 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
492 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
496 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
497 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
500 device_printf(sc->sc_dev, "could not load desc DMA map\n");
504 ring->data = malloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
506 if (ring->data == NULL) {
507 device_printf(sc->sc_dev, "could not allocate soft data\n");
512 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
513 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
514 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, NULL, NULL,
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 free(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(bus_get_dma_tag(sc->sc_dev), 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, NULL, NULL, &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 = malloc(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(bus_get_dma_tag(sc->sc_dev), 1, 0,
660 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
661 1, MCLBYTES, 0, NULL, NULL, &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(M_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 free(ring->data, M_DEVBUF);
756 if (ring->data_dmat != NULL)
757 bus_dma_tag_destroy(ring->data_dmat);
761 rt2560_newassoc(struct ieee80211_node *ni, int isnew)
764 ieee80211_ratectl_node_init(ni);
768 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
770 struct rt2560_vap *rvp = RT2560_VAP(vap);
771 struct ifnet *ifp = vap->iv_ic->ic_ifp;
772 struct rt2560_softc *sc = ifp->if_softc;
775 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
776 /* abort TSF synchronization */
777 RAL_WRITE(sc, RT2560_CSR14, 0);
779 /* turn association led off */
780 rt2560_update_led(sc, 0, 0);
783 error = rvp->ral_newstate(vap, nstate, arg);
785 if (error == 0 && nstate == IEEE80211_S_RUN) {
786 struct ieee80211_node *ni = vap->iv_bss;
789 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
790 rt2560_update_plcp(sc);
791 rt2560_set_basicrates(sc);
792 rt2560_set_bssid(sc, ni->ni_bssid);
795 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
796 vap->iv_opmode == IEEE80211_M_IBSS ||
797 vap->iv_opmode == IEEE80211_M_MBSS) {
798 m = ieee80211_beacon_alloc(ni, &rvp->ral_bo);
800 if_printf(ifp, "could not allocate beacon\n");
803 ieee80211_ref_node(ni);
804 error = rt2560_tx_bcn(sc, m, ni);
809 /* turn assocation led on */
810 rt2560_update_led(sc, 1, 0);
812 if (vap->iv_opmode != IEEE80211_M_MONITOR)
813 rt2560_enable_tsf_sync(sc);
815 rt2560_enable_tsf(sc);
821 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
825 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
831 /* clock C once before the first command */
832 RT2560_EEPROM_CTL(sc, 0);
834 RT2560_EEPROM_CTL(sc, RT2560_S);
835 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
836 RT2560_EEPROM_CTL(sc, RT2560_S);
838 /* write start bit (1) */
839 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
840 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
842 /* write READ opcode (10) */
843 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
844 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
845 RT2560_EEPROM_CTL(sc, RT2560_S);
846 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
848 /* write address (A5-A0 or A7-A0) */
849 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
850 for (; n >= 0; n--) {
851 RT2560_EEPROM_CTL(sc, RT2560_S |
852 (((addr >> n) & 1) << RT2560_SHIFT_D));
853 RT2560_EEPROM_CTL(sc, RT2560_S |
854 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
857 RT2560_EEPROM_CTL(sc, RT2560_S);
859 /* read data Q15-Q0 */
861 for (n = 15; n >= 0; n--) {
862 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
863 tmp = RAL_READ(sc, RT2560_CSR21);
864 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
865 RT2560_EEPROM_CTL(sc, RT2560_S);
868 RT2560_EEPROM_CTL(sc, 0);
870 /* clear Chip Select and clock C */
871 RT2560_EEPROM_CTL(sc, RT2560_S);
872 RT2560_EEPROM_CTL(sc, 0);
873 RT2560_EEPROM_CTL(sc, RT2560_C);
879 * Some frames were processed by the hardware cipher engine and are ready for
883 rt2560_encryption_intr(struct rt2560_softc *sc)
885 struct rt2560_tx_desc *desc;
888 /* retrieve last descriptor index processed by cipher engine */
889 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
890 hw /= RT2560_TX_DESC_SIZE;
892 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
893 BUS_DMASYNC_POSTREAD);
895 while (sc->txq.next_encrypt != hw) {
896 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
897 printf("hw encrypt %d, cur_encrypt %d\n", hw,
898 sc->txq.cur_encrypt);
902 desc = &sc->txq.desc[sc->txq.next_encrypt];
904 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
905 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
908 /* for TKIP, swap eiv field to fix a bug in ASIC */
909 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
910 RT2560_TX_CIPHER_TKIP)
911 desc->eiv = bswap32(desc->eiv);
913 /* mark the frame ready for transmission */
914 desc->flags |= htole32(RT2560_TX_VALID);
915 desc->flags |= htole32(RT2560_TX_BUSY);
917 DPRINTFN(sc, 15, "encryption done idx=%u\n",
918 sc->txq.next_encrypt);
920 sc->txq.next_encrypt =
921 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
924 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
925 BUS_DMASYNC_PREWRITE);
928 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
932 rt2560_tx_intr(struct rt2560_softc *sc)
934 struct ifnet *ifp = sc->sc_ifp;
935 struct rt2560_tx_desc *desc;
936 struct rt2560_tx_data *data;
940 struct ieee80211vap *vap;
941 struct ieee80211_node *ni;
943 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
944 BUS_DMASYNC_POSTREAD);
947 desc = &sc->txq.desc[sc->txq.next];
948 data = &sc->txq.data[sc->txq.next];
950 flags = le32toh(desc->flags);
951 if ((flags & RT2560_TX_BUSY) ||
952 (flags & RT2560_TX_CIPHER_BUSY) ||
953 !(flags & RT2560_TX_VALID))
960 switch (flags & RT2560_TX_RESULT_MASK) {
961 case RT2560_TX_SUCCESS:
964 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
965 if (data->rix != IEEE80211_FIXED_RATE_NONE)
966 ieee80211_ratectl_tx_complete(vap, ni,
967 IEEE80211_RATECTL_TX_SUCCESS,
972 case RT2560_TX_SUCCESS_RETRY:
973 retrycnt = RT2560_TX_RETRYCNT(flags);
975 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
977 if (data->rix != IEEE80211_FIXED_RATE_NONE)
978 ieee80211_ratectl_tx_complete(vap, ni,
979 IEEE80211_RATECTL_TX_SUCCESS,
984 case RT2560_TX_FAIL_RETRY:
985 retrycnt = RT2560_TX_RETRYCNT(flags);
987 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
989 if (data->rix != IEEE80211_FIXED_RATE_NONE)
990 ieee80211_ratectl_tx_complete(vap, ni,
991 IEEE80211_RATECTL_TX_FAILURE,
996 case RT2560_TX_FAIL_INVALID:
997 case RT2560_TX_FAIL_OTHER:
999 device_printf(sc->sc_dev, "sending data frame failed "
1004 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1005 BUS_DMASYNC_POSTWRITE);
1006 bus_dmamap_unload(sc->txq.data_dmat, data->map);
1009 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_drv_flags &= ~IFF_DRV_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_drv_flags &= ~IFF_DRV_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(M_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_drv_flags & IFF_DRV_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_sg(sc->bcnq.data_dmat, data->map, m0,
1510 segs, &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_sg(sc->prioq.data_dmat, data->map, m0,
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_sg(sc->txq.data_dmat, data->map,
1679 mprot, segs, &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_sg(sc->prioq.data_dmat, data->map, m0,
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_sg(sc->txq.data_dmat, data->map, m0,
1848 if (error != 0 && error != EFBIG) {
1849 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1855 mnew = m_defrag(m0, M_DONTWAIT);
1857 device_printf(sc->sc_dev,
1858 "could not defragment mbuf\n");
1864 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1865 m0, segs, &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;
1931 RAL_LOCK_ASSERT(sc);
1934 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1937 if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
1938 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1939 ifp->if_drv_flags |= IFF_DRV_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)
1957 struct rt2560_softc *sc = ifp->if_softc;
1960 rt2560_start_locked(ifp);
1965 rt2560_watchdog(void *arg)
1967 struct rt2560_softc *sc = arg;
1968 struct ifnet *ifp = sc->sc_ifp;
1970 RAL_LOCK_ASSERT(sc);
1972 KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running"));
1974 if (sc->sc_invalid) /* card ejected */
1977 rt2560_encryption_intr(sc);
1980 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1981 if_printf(ifp, "device timeout\n");
1982 rt2560_init_locked(sc);
1984 /* NB: callout is reset in rt2560_init() */
1987 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
1991 rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1993 struct rt2560_softc *sc = ifp->if_softc;
1994 struct ieee80211com *ic = ifp->if_l2com;
1995 struct ifreq *ifr = (struct ifreq *) data;
1996 int error = 0, startall = 0;
2001 if (ifp->if_flags & IFF_UP) {
2002 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2003 rt2560_init_locked(sc);
2006 rt2560_update_promisc(ifp);
2008 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2009 rt2560_stop_locked(sc);
2013 ieee80211_start_all(ic);
2016 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2019 error = ether_ioctl(ifp, cmd, data);
2029 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
2034 for (ntries = 0; ntries < 100; ntries++) {
2035 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2039 if (ntries == 100) {
2040 device_printf(sc->sc_dev, "could not write to BBP\n");
2044 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
2045 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
2047 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
2051 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
2056 for (ntries = 0; ntries < 100; ntries++) {
2057 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2061 if (ntries == 100) {
2062 device_printf(sc->sc_dev, "could not read from BBP\n");
2066 val = RT2560_BBP_BUSY | reg << 8;
2067 RAL_WRITE(sc, RT2560_BBPCSR, val);
2069 for (ntries = 0; ntries < 100; ntries++) {
2070 val = RAL_READ(sc, RT2560_BBPCSR);
2071 if (!(val & RT2560_BBP_BUSY))
2076 device_printf(sc->sc_dev, "could not read from BBP\n");
2081 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2086 for (ntries = 0; ntries < 100; ntries++) {
2087 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2091 if (ntries == 100) {
2092 device_printf(sc->sc_dev, "could not write to RF\n");
2096 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2098 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2100 /* remember last written value in sc */
2101 sc->rf_regs[reg] = val;
2103 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2107 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2109 struct ifnet *ifp = sc->sc_ifp;
2110 struct ieee80211com *ic = ifp->if_l2com;
2114 chan = ieee80211_chan2ieee(ic, c);
2115 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2117 if (IEEE80211_IS_CHAN_2GHZ(c))
2118 power = min(sc->txpow[chan - 1], 31);
2122 /* adjust txpower using ifconfig settings */
2123 power -= (100 - ic->ic_txpowlimit) / 8;
2125 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2127 switch (sc->rf_rev) {
2128 case RT2560_RF_2522:
2129 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2130 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2131 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2134 case RT2560_RF_2523:
2135 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2136 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2137 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2138 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2141 case RT2560_RF_2524:
2142 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2143 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2144 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2145 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2148 case RT2560_RF_2525:
2149 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2150 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2151 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2152 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2154 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2155 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2156 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2157 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2160 case RT2560_RF_2525E:
2161 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2162 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2163 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2164 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2167 case RT2560_RF_2526:
2168 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2169 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2170 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2172 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2173 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2174 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2178 case RT2560_RF_5222:
2179 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2181 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2182 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2183 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2184 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2187 printf("unknown ral rev=%d\n", sc->rf_rev);
2191 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2192 /* set Japan filter bit for channel 14 */
2193 tmp = rt2560_bbp_read(sc, 70);
2195 tmp &= ~RT2560_JAPAN_FILTER;
2197 tmp |= RT2560_JAPAN_FILTER;
2199 rt2560_bbp_write(sc, 70, tmp);
2201 /* clear CRC errors */
2202 RAL_READ(sc, RT2560_CNT0);
2207 rt2560_set_channel(struct ieee80211com *ic)
2209 struct ifnet *ifp = ic->ic_ifp;
2210 struct rt2560_softc *sc = ifp->if_softc;
2213 rt2560_set_chan(sc, ic->ic_curchan);
2220 * Disable RF auto-tuning.
2223 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2227 if (sc->rf_rev != RT2560_RF_2523) {
2228 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2229 rt2560_rf_write(sc, RAL_RF1, tmp);
2232 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2233 rt2560_rf_write(sc, RAL_RF3, tmp);
2235 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2240 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2244 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2246 struct ifnet *ifp = sc->sc_ifp;
2247 struct ieee80211com *ic = ifp->if_l2com;
2248 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2249 uint16_t logcwmin, preload;
2252 /* first, disable TSF synchronization */
2253 RAL_WRITE(sc, RT2560_CSR14, 0);
2255 tmp = 16 * vap->iv_bss->ni_intval;
2256 RAL_WRITE(sc, RT2560_CSR12, tmp);
2258 RAL_WRITE(sc, RT2560_CSR13, 0);
2261 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2262 tmp = logcwmin << 16 | preload;
2263 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2265 /* finally, enable TSF synchronization */
2266 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2267 if (ic->ic_opmode == IEEE80211_M_STA)
2268 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2270 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2271 RT2560_ENABLE_BEACON_GENERATOR;
2272 RAL_WRITE(sc, RT2560_CSR14, tmp);
2274 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2278 rt2560_enable_tsf(struct rt2560_softc *sc)
2280 RAL_WRITE(sc, RT2560_CSR14, 0);
2281 RAL_WRITE(sc, RT2560_CSR14,
2282 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
2286 rt2560_update_plcp(struct rt2560_softc *sc)
2288 struct ifnet *ifp = sc->sc_ifp;
2289 struct ieee80211com *ic = ifp->if_l2com;
2291 /* no short preamble for 1Mbps */
2292 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2294 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2295 /* values taken from the reference driver */
2296 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2297 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2298 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2300 /* same values as above or'ed 0x8 */
2301 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2302 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2303 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2306 DPRINTF(sc, "updating PLCP for %s preamble\n",
2307 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2311 * This function can be called by ieee80211_set_shortslottime(). Refer to
2312 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2315 rt2560_update_slot(struct ifnet *ifp)
2317 struct rt2560_softc *sc = ifp->if_softc;
2318 struct ieee80211com *ic = ifp->if_l2com;
2320 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2323 #ifndef FORCE_SLOTTIME
2324 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
2327 * Setting slot time according to "short slot time" capability
2328 * in beacon/probe_resp seems to cause problem to acknowledge
2329 * certain AP's data frames transimitted at CCK/DS rates: the
2330 * problematic AP keeps retransmitting data frames, probably
2331 * because MAC level acks are not received by hardware.
2332 * So we cheat a little bit here by claiming we are capable of
2333 * "short slot time" but setting hardware slot time to the normal
2334 * slot time. ral(4) does not seem to have trouble to receive
2335 * frames transmitted using short slot time even if hardware
2336 * slot time is set to normal slot time. If we didn't use this
2337 * trick, we would have to claim that short slot time is not
2338 * supported; this would give relative poor RX performance
2339 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2345 /* update the MAC slot boundaries */
2346 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2347 tx_pifs = tx_sifs + slottime;
2348 tx_difs = tx_sifs + 2 * slottime;
2349 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2351 tmp = RAL_READ(sc, RT2560_CSR11);
2352 tmp = (tmp & ~0x1f00) | slottime << 8;
2353 RAL_WRITE(sc, RT2560_CSR11, tmp);
2355 tmp = tx_pifs << 16 | tx_sifs;
2356 RAL_WRITE(sc, RT2560_CSR18, tmp);
2358 tmp = eifs << 16 | tx_difs;
2359 RAL_WRITE(sc, RT2560_CSR19, tmp);
2361 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2365 rt2560_set_basicrates(struct rt2560_softc *sc)
2367 struct ifnet *ifp = sc->sc_ifp;
2368 struct ieee80211com *ic = ifp->if_l2com;
2370 /* update basic rate set */
2371 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2372 /* 11b basic rates: 1, 2Mbps */
2373 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x3);
2374 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) {
2375 /* 11a basic rates: 6, 12, 24Mbps */
2376 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x150);
2378 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
2379 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x15f);
2384 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2388 /* set ON period to 70ms and OFF period to 30ms */
2389 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2390 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2394 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2398 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2399 RAL_WRITE(sc, RT2560_CSR5, tmp);
2401 tmp = bssid[4] | bssid[5] << 8;
2402 RAL_WRITE(sc, RT2560_CSR6, tmp);
2404 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":");
2408 rt2560_set_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2412 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2413 RAL_WRITE(sc, RT2560_CSR3, tmp);
2415 tmp = addr[4] | addr[5] << 8;
2416 RAL_WRITE(sc, RT2560_CSR4, tmp);
2418 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":");
2422 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2426 tmp = RAL_READ(sc, RT2560_CSR3);
2427 addr[0] = tmp & 0xff;
2428 addr[1] = (tmp >> 8) & 0xff;
2429 addr[2] = (tmp >> 16) & 0xff;
2430 addr[3] = (tmp >> 24);
2432 tmp = RAL_READ(sc, RT2560_CSR4);
2433 addr[4] = tmp & 0xff;
2434 addr[5] = (tmp >> 8) & 0xff;
2438 rt2560_update_promisc(struct ifnet *ifp)
2440 struct rt2560_softc *sc = ifp->if_softc;
2443 tmp = RAL_READ(sc, RT2560_RXCSR0);
2445 tmp &= ~RT2560_DROP_NOT_TO_ME;
2446 if (!(ifp->if_flags & IFF_PROMISC))
2447 tmp |= RT2560_DROP_NOT_TO_ME;
2449 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2451 DPRINTF(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
2452 "entering" : "leaving");
2456 rt2560_get_rf(int rev)
2459 case RT2560_RF_2522: return "RT2522";
2460 case RT2560_RF_2523: return "RT2523";
2461 case RT2560_RF_2524: return "RT2524";
2462 case RT2560_RF_2525: return "RT2525";
2463 case RT2560_RF_2525E: return "RT2525e";
2464 case RT2560_RF_2526: return "RT2526";
2465 case RT2560_RF_5222: return "RT5222";
2466 default: return "unknown";
2471 rt2560_read_config(struct rt2560_softc *sc)
2476 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2477 sc->rf_rev = (val >> 11) & 0x7;
2478 sc->hw_radio = (val >> 10) & 0x1;
2479 sc->led_mode = (val >> 6) & 0x7;
2480 sc->rx_ant = (val >> 4) & 0x3;
2481 sc->tx_ant = (val >> 2) & 0x3;
2482 sc->nb_ant = val & 0x3;
2484 /* read default values for BBP registers */
2485 for (i = 0; i < 16; i++) {
2486 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2487 if (val == 0 || val == 0xffff)
2490 sc->bbp_prom[i].reg = val >> 8;
2491 sc->bbp_prom[i].val = val & 0xff;
2494 /* read Tx power for all b/g channels */
2495 for (i = 0; i < 14 / 2; i++) {
2496 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2497 sc->txpow[i * 2] = val & 0xff;
2498 sc->txpow[i * 2 + 1] = val >> 8;
2500 for (i = 0; i < 14; ++i) {
2501 if (sc->txpow[i] > 31)
2505 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2506 if ((val & 0xff) == 0xff)
2507 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2509 sc->rssi_corr = val & 0xff;
2510 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2511 sc->rssi_corr, val);
2516 rt2560_scan_start(struct ieee80211com *ic)
2518 struct ifnet *ifp = ic->ic_ifp;
2519 struct rt2560_softc *sc = ifp->if_softc;
2521 /* abort TSF synchronization */
2522 RAL_WRITE(sc, RT2560_CSR14, 0);
2523 rt2560_set_bssid(sc, ifp->if_broadcastaddr);
2527 rt2560_scan_end(struct ieee80211com *ic)
2529 struct ifnet *ifp = ic->ic_ifp;
2530 struct rt2560_softc *sc = ifp->if_softc;
2531 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2533 rt2560_enable_tsf_sync(sc);
2534 /* XXX keep local copy */
2535 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2539 rt2560_bbp_init(struct rt2560_softc *sc)
2541 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2544 /* wait for BBP to be ready */
2545 for (ntries = 0; ntries < 100; ntries++) {
2546 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2550 if (ntries == 100) {
2551 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2555 /* initialize BBP registers to default values */
2556 for (i = 0; i < N(rt2560_def_bbp); i++) {
2557 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2558 rt2560_def_bbp[i].val);
2561 /* initialize BBP registers to values stored in EEPROM */
2562 for (i = 0; i < 16; i++) {
2563 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2565 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2567 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2574 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2579 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2581 tx |= RT2560_BBP_ANTA;
2582 else if (antenna == 2)
2583 tx |= RT2560_BBP_ANTB;
2585 tx |= RT2560_BBP_DIVERSITY;
2587 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2588 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2589 sc->rf_rev == RT2560_RF_5222)
2590 tx |= RT2560_BBP_FLIPIQ;
2592 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2594 /* update values for CCK and OFDM in BBPCSR1 */
2595 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2596 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2597 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2601 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2605 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2607 rx |= RT2560_BBP_ANTA;
2608 else if (antenna == 2)
2609 rx |= RT2560_BBP_ANTB;
2611 rx |= RT2560_BBP_DIVERSITY;
2613 /* need to force no I/Q flip for RF 2525e and 2526 */
2614 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2615 rx &= ~RT2560_BBP_FLIPIQ;
2617 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2621 rt2560_init_locked(struct rt2560_softc *sc)
2623 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2624 struct ifnet *ifp = sc->sc_ifp;
2625 struct ieee80211com *ic = ifp->if_l2com;
2629 RAL_LOCK_ASSERT(sc);
2631 rt2560_stop_locked(sc);
2633 /* setup tx rings */
2634 tmp = RT2560_PRIO_RING_COUNT << 24 |
2635 RT2560_ATIM_RING_COUNT << 16 |
2636 RT2560_TX_RING_COUNT << 8 |
2637 RT2560_TX_DESC_SIZE;
2639 /* rings must be initialized in this exact order */
2640 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2641 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2642 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2643 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2644 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2647 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2649 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2650 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2652 /* initialize MAC registers to default values */
2653 for (i = 0; i < N(rt2560_def_mac); i++)
2654 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2656 rt2560_set_macaddr(sc, IF_LLADDR(ifp));
2658 /* set basic rate set (will be updated later) */
2659 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2661 rt2560_update_slot(ifp);
2662 rt2560_update_plcp(sc);
2663 rt2560_update_led(sc, 0, 0);
2665 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2666 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2668 if (rt2560_bbp_init(sc) != 0) {
2674 rt2560_set_txantenna(sc, sc->tx_ant);
2675 rt2560_set_rxantenna(sc, sc->rx_ant);
2677 /* set default BSS channel */
2678 rt2560_set_chan(sc, ic->ic_curchan);
2681 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2682 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2683 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2684 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2685 ic->ic_opmode != IEEE80211_M_MBSS)
2686 tmp |= RT2560_DROP_TODS;
2687 if (!(ifp->if_flags & IFF_PROMISC))
2688 tmp |= RT2560_DROP_NOT_TO_ME;
2690 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2692 /* clear old FCS and Rx FIFO errors */
2693 RAL_READ(sc, RT2560_CNT0);
2694 RAL_READ(sc, RT2560_CNT4);
2696 /* clear any pending interrupts */
2697 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2699 /* enable interrupts */
2700 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2702 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2703 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2705 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
2710 rt2560_init(void *priv)
2712 struct rt2560_softc *sc = priv;
2713 struct ifnet *ifp = sc->sc_ifp;
2714 struct ieee80211com *ic = ifp->if_l2com;
2717 rt2560_init_locked(sc);
2720 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2721 ieee80211_start_all(ic); /* start all vap's */
2725 rt2560_stop_locked(struct rt2560_softc *sc)
2727 struct ifnet *ifp = sc->sc_ifp;
2728 volatile int *flags = &sc->sc_flags;
2730 RAL_LOCK_ASSERT(sc);
2732 while (*flags & RT2560_F_INPUT_RUNNING)
2733 msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10);
2735 callout_stop(&sc->watchdog_ch);
2736 sc->sc_tx_timer = 0;
2738 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2739 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2742 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2745 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2747 /* reset ASIC (imply reset BBP) */
2748 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2749 RAL_WRITE(sc, RT2560_CSR1, 0);
2751 /* disable interrupts */
2752 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2754 /* reset Tx and Rx rings */
2755 rt2560_reset_tx_ring(sc, &sc->txq);
2756 rt2560_reset_tx_ring(sc, &sc->atimq);
2757 rt2560_reset_tx_ring(sc, &sc->prioq);
2758 rt2560_reset_tx_ring(sc, &sc->bcnq);
2759 rt2560_reset_rx_ring(sc, &sc->rxq);
2761 sc->sc_flags &= ~(RT2560_F_PRIO_OACTIVE | RT2560_F_DATA_OACTIVE);
2765 rt2560_stop(void *arg)
2767 struct rt2560_softc *sc = arg;
2770 rt2560_stop_locked(sc);
2775 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2776 const struct ieee80211_bpf_params *params)
2778 struct ieee80211com *ic = ni->ni_ic;
2779 struct ifnet *ifp = ic->ic_ifp;
2780 struct rt2560_softc *sc = ifp->if_softc;
2784 /* prevent management frames from being sent if we're not ready */
2785 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2788 ieee80211_free_node(ni);
2791 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2792 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2793 sc->sc_flags |= RT2560_F_PRIO_OACTIVE;
2796 ieee80211_free_node(ni);
2797 return ENOBUFS; /* XXX */
2802 if (params == NULL) {
2804 * Legacy path; interpret frame contents to decide
2805 * precisely how to send the frame.
2807 if (rt2560_tx_mgt(sc, m, ni) != 0)
2811 * Caller supplied explicit parameters to use in
2812 * sending the frame.
2814 if (rt2560_tx_raw(sc, m, ni, params))
2817 sc->sc_tx_timer = 5;
2824 ieee80211_free_node(ni);
2826 return EIO; /* XXX */