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_phy.h>
56 #include <net80211/ieee80211_radiotap.h>
57 #include <net80211/ieee80211_regdomain.h>
58 #include <net80211/ieee80211_amrr.h>
60 #include <netinet/in.h>
61 #include <netinet/in_systm.h>
62 #include <netinet/in_var.h>
63 #include <netinet/ip.h>
64 #include <netinet/if_ether.h>
66 #include <dev/ral/rt2560reg.h>
67 #include <dev/ral/rt2560var.h>
69 #define RT2560_RSSI(sc, rssi) \
70 ((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \
71 ((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0)
75 #define DPRINTF(sc, fmt, ...) do { \
76 if (sc->sc_debug > 0) \
77 printf(fmt, __VA_ARGS__); \
79 #define DPRINTFN(sc, n, fmt, ...) do { \
80 if (sc->sc_debug >= (n)) \
81 printf(fmt, __VA_ARGS__); \
84 #define DPRINTF(sc, fmt, ...)
85 #define DPRINTFN(sc, n, fmt, ...)
88 static struct ieee80211vap *rt2560_vap_create(struct ieee80211com *,
89 const char name[IFNAMSIZ], int unit, int opmode,
90 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
91 const uint8_t mac[IEEE80211_ADDR_LEN]);
92 static void rt2560_vap_delete(struct ieee80211vap *);
93 static void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int,
95 static int rt2560_alloc_tx_ring(struct rt2560_softc *,
96 struct rt2560_tx_ring *, int);
97 static void rt2560_reset_tx_ring(struct rt2560_softc *,
98 struct rt2560_tx_ring *);
99 static void rt2560_free_tx_ring(struct rt2560_softc *,
100 struct rt2560_tx_ring *);
101 static int rt2560_alloc_rx_ring(struct rt2560_softc *,
102 struct rt2560_rx_ring *, int);
103 static void rt2560_reset_rx_ring(struct rt2560_softc *,
104 struct rt2560_rx_ring *);
105 static void rt2560_free_rx_ring(struct rt2560_softc *,
106 struct rt2560_rx_ring *);
107 static struct ieee80211_node *rt2560_node_alloc(struct ieee80211vap *,
108 const uint8_t [IEEE80211_ADDR_LEN]);
109 static void rt2560_newassoc(struct ieee80211_node *, int);
110 static int rt2560_newstate(struct ieee80211vap *,
111 enum ieee80211_state, int);
112 static uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
113 static void rt2560_encryption_intr(struct rt2560_softc *);
114 static void rt2560_tx_intr(struct rt2560_softc *);
115 static void rt2560_prio_intr(struct rt2560_softc *);
116 static void rt2560_decryption_intr(struct rt2560_softc *);
117 static void rt2560_rx_intr(struct rt2560_softc *);
118 static void rt2560_beacon_update(struct ieee80211vap *, int item);
119 static void rt2560_beacon_expire(struct rt2560_softc *);
120 static void rt2560_wakeup_expire(struct rt2560_softc *);
121 static void rt2560_scan_start(struct ieee80211com *);
122 static void rt2560_scan_end(struct ieee80211com *);
123 static void rt2560_set_channel(struct ieee80211com *);
124 static void rt2560_setup_tx_desc(struct rt2560_softc *,
125 struct rt2560_tx_desc *, uint32_t, int, int, int,
127 static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
128 struct ieee80211_node *);
129 static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
130 struct ieee80211_node *);
131 static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
132 struct ieee80211_node *);
133 static void rt2560_start_locked(struct ifnet *);
134 static void rt2560_start(struct ifnet *);
135 static void rt2560_watchdog(void *);
136 static int rt2560_ioctl(struct ifnet *, u_long, caddr_t);
137 static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
139 static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
140 static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
142 static void rt2560_set_chan(struct rt2560_softc *,
143 struct ieee80211_channel *);
145 static void rt2560_disable_rf_tune(struct rt2560_softc *);
147 static void rt2560_enable_tsf_sync(struct rt2560_softc *);
148 static void rt2560_update_plcp(struct rt2560_softc *);
149 static void rt2560_update_slot(struct ifnet *);
150 static void rt2560_set_basicrates(struct rt2560_softc *);
151 static void rt2560_update_led(struct rt2560_softc *, int, int);
152 static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
153 static void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
154 static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
155 static void rt2560_update_promisc(struct ifnet *);
156 static const char *rt2560_get_rf(int);
157 static void rt2560_read_config(struct rt2560_softc *);
158 static int rt2560_bbp_init(struct rt2560_softc *);
159 static void rt2560_set_txantenna(struct rt2560_softc *, int);
160 static void rt2560_set_rxantenna(struct rt2560_softc *, int);
161 static void rt2560_init_locked(struct rt2560_softc *);
162 static void rt2560_init(void *);
163 static void rt2560_stop_locked(struct rt2560_softc *);
164 static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
165 const struct ieee80211_bpf_params *);
167 static const struct {
170 } rt2560_def_mac[] = {
174 static const struct {
177 } rt2560_def_bbp[] = {
181 static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
182 static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
183 static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
184 static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
185 static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
186 static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
187 static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
188 static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
190 static const struct {
193 } rt2560_rf5222[] = {
198 rt2560_attach(device_t dev, int id)
200 struct rt2560_softc *sc = device_get_softc(dev);
201 struct ieee80211com *ic;
208 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
209 MTX_DEF | MTX_RECURSE);
211 callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
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, ic->ic_myaddr);
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 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
273 IFQ_SET_READY(&ifp->if_snd);
276 ic->ic_opmode = IEEE80211_M_STA;
277 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
279 /* set device capabilities */
281 IEEE80211_C_STA /* station mode */
282 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
283 | IEEE80211_C_HOSTAP /* hostap mode */
284 | IEEE80211_C_MONITOR /* monitor mode */
285 | IEEE80211_C_AHDEMO /* adhoc demo mode */
286 | IEEE80211_C_WDS /* 4-address traffic works */
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);
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_node_alloc = rt2560_node_alloc;
309 ic->ic_scan_start = rt2560_scan_start;
310 ic->ic_scan_end = rt2560_scan_end;
311 ic->ic_set_channel = rt2560_set_channel;
313 ic->ic_vap_create = rt2560_vap_create;
314 ic->ic_vap_delete = rt2560_vap_delete;
316 bpfattach(ifp, DLT_IEEE802_11_RADIO,
317 sizeof (struct ieee80211_frame) + sizeof (sc->sc_txtap));
319 sc->sc_rxtap_len = sizeof sc->sc_rxtap;
320 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len);
321 sc->sc_rxtap.wr_ihdr.it_present = htole32(RT2560_RX_RADIOTAP_PRESENT);
323 sc->sc_txtap_len = sizeof sc->sc_txtap;
324 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len);
325 sc->sc_txtap.wt_ihdr.it_present = htole32(RT2560_TX_RADIOTAP_PRESENT);
328 * Add a few sysctl knobs.
331 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
332 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
333 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
335 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
336 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
337 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
339 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
340 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
341 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
344 ieee80211_announce(ic);
348 fail6: rt2560_free_rx_ring(sc, &sc->rxq);
349 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
350 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
351 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
352 fail2: rt2560_free_tx_ring(sc, &sc->txq);
353 fail1: mtx_destroy(&sc->sc_mtx);
359 rt2560_detach(void *xsc)
361 struct rt2560_softc *sc = xsc;
362 struct ifnet *ifp = sc->sc_ifp;
363 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 mtx_destroy(&sc->sc_mtx);
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 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
400 if_printf(ifp, "only 1 vap supported\n");
403 if (opmode == IEEE80211_M_STA)
404 flags |= IEEE80211_CLONE_NOBEACONS;
406 case IEEE80211_M_WDS:
407 if (TAILQ_EMPTY(&ic->ic_vaps) ||
408 ic->ic_opmode != IEEE80211_M_HOSTAP) {
409 if_printf(ifp, "wds only supported in ap mode\n");
413 * Silently remove any request for a unique
414 * bssid; WDS vap's always share the local
417 flags &= ~IEEE80211_CLONE_BSSID;
420 if_printf(ifp, "unknown opmode %d\n", opmode);
423 rvp = (struct rt2560_vap *) malloc(sizeof(struct rt2560_vap),
424 M_80211_VAP, M_NOWAIT | M_ZERO);
428 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
430 /* override state transition machine */
431 rvp->ral_newstate = vap->iv_newstate;
432 vap->iv_newstate = rt2560_newstate;
433 vap->iv_update_beacon = rt2560_beacon_update;
435 ieee80211_amrr_init(&rvp->amrr, vap,
436 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
437 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD,
441 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
442 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
443 ic->ic_opmode = opmode;
448 rt2560_vap_delete(struct ieee80211vap *vap)
450 struct rt2560_vap *rvp = RT2560_VAP(vap);
452 ieee80211_amrr_cleanup(&rvp->amrr);
453 ieee80211_vap_detach(vap);
454 free(rvp, M_80211_VAP);
458 rt2560_resume(void *xsc)
460 struct rt2560_softc *sc = xsc;
461 struct ifnet *ifp = sc->sc_ifp;
463 if (ifp->if_flags & IFF_UP)
468 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
473 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
475 *(bus_addr_t *)arg = segs[0].ds_addr;
479 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
486 ring->cur = ring->next = 0;
487 ring->cur_encrypt = ring->next_encrypt = 0;
489 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
490 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
491 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
492 0, NULL, NULL, &ring->desc_dmat);
494 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
498 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
499 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
501 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
505 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
506 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
509 device_printf(sc->sc_dev, "could not load desc DMA map\n");
513 ring->data = malloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
515 if (ring->data == NULL) {
516 device_printf(sc->sc_dev, "could not allocate soft data\n");
521 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
522 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
523 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, NULL, NULL,
526 device_printf(sc->sc_dev, "could not create data DMA tag\n");
530 for (i = 0; i < count; i++) {
531 error = bus_dmamap_create(ring->data_dmat, 0,
534 device_printf(sc->sc_dev, "could not create DMA map\n");
541 fail: rt2560_free_tx_ring(sc, ring);
546 rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
548 struct rt2560_tx_desc *desc;
549 struct rt2560_tx_data *data;
552 for (i = 0; i < ring->count; i++) {
553 desc = &ring->desc[i];
554 data = &ring->data[i];
556 if (data->m != NULL) {
557 bus_dmamap_sync(ring->data_dmat, data->map,
558 BUS_DMASYNC_POSTWRITE);
559 bus_dmamap_unload(ring->data_dmat, data->map);
564 if (data->ni != NULL) {
565 ieee80211_free_node(data->ni);
572 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
575 ring->cur = ring->next = 0;
576 ring->cur_encrypt = ring->next_encrypt = 0;
580 rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
582 struct rt2560_tx_data *data;
585 if (ring->desc != NULL) {
586 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
587 BUS_DMASYNC_POSTWRITE);
588 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
589 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
592 if (ring->desc_dmat != NULL)
593 bus_dma_tag_destroy(ring->desc_dmat);
595 if (ring->data != NULL) {
596 for (i = 0; i < ring->count; i++) {
597 data = &ring->data[i];
599 if (data->m != NULL) {
600 bus_dmamap_sync(ring->data_dmat, data->map,
601 BUS_DMASYNC_POSTWRITE);
602 bus_dmamap_unload(ring->data_dmat, data->map);
606 if (data->ni != NULL)
607 ieee80211_free_node(data->ni);
609 if (data->map != NULL)
610 bus_dmamap_destroy(ring->data_dmat, data->map);
613 free(ring->data, M_DEVBUF);
616 if (ring->data_dmat != NULL)
617 bus_dma_tag_destroy(ring->data_dmat);
621 rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
624 struct rt2560_rx_desc *desc;
625 struct rt2560_rx_data *data;
630 ring->cur = ring->next = 0;
631 ring->cur_decrypt = 0;
633 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
634 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
635 count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
636 0, NULL, NULL, &ring->desc_dmat);
638 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
642 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
643 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
645 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
649 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
650 count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
653 device_printf(sc->sc_dev, "could not load desc DMA map\n");
657 ring->data = malloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
659 if (ring->data == NULL) {
660 device_printf(sc->sc_dev, "could not allocate soft data\n");
666 * Pre-allocate Rx buffers and populate Rx ring.
668 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
669 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
670 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
672 device_printf(sc->sc_dev, "could not create data DMA tag\n");
676 for (i = 0; i < count; i++) {
677 desc = &sc->rxq.desc[i];
678 data = &sc->rxq.data[i];
680 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
682 device_printf(sc->sc_dev, "could not create DMA map\n");
686 data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
687 if (data->m == NULL) {
688 device_printf(sc->sc_dev,
689 "could not allocate rx mbuf\n");
694 error = bus_dmamap_load(ring->data_dmat, data->map,
695 mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
698 device_printf(sc->sc_dev,
699 "could not load rx buf DMA map");
703 desc->flags = htole32(RT2560_RX_BUSY);
704 desc->physaddr = htole32(physaddr);
707 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
711 fail: rt2560_free_rx_ring(sc, ring);
716 rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
720 for (i = 0; i < ring->count; i++) {
721 ring->desc[i].flags = htole32(RT2560_RX_BUSY);
722 ring->data[i].drop = 0;
725 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
727 ring->cur = ring->next = 0;
728 ring->cur_decrypt = 0;
732 rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
734 struct rt2560_rx_data *data;
737 if (ring->desc != NULL) {
738 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
739 BUS_DMASYNC_POSTWRITE);
740 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
741 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
744 if (ring->desc_dmat != NULL)
745 bus_dma_tag_destroy(ring->desc_dmat);
747 if (ring->data != NULL) {
748 for (i = 0; i < ring->count; i++) {
749 data = &ring->data[i];
751 if (data->m != NULL) {
752 bus_dmamap_sync(ring->data_dmat, data->map,
753 BUS_DMASYNC_POSTREAD);
754 bus_dmamap_unload(ring->data_dmat, data->map);
758 if (data->map != NULL)
759 bus_dmamap_destroy(ring->data_dmat, data->map);
762 free(ring->data, M_DEVBUF);
765 if (ring->data_dmat != NULL)
766 bus_dma_tag_destroy(ring->data_dmat);
769 static struct ieee80211_node *
770 rt2560_node_alloc(struct ieee80211vap *vap,
771 const uint8_t mac[IEEE80211_ADDR_LEN])
773 struct rt2560_node *rn;
775 rn = malloc(sizeof (struct rt2560_node), M_80211_NODE,
778 return (rn != NULL) ? &rn->ni : NULL;
782 rt2560_newassoc(struct ieee80211_node *ni, int isnew)
784 struct ieee80211vap *vap = ni->ni_vap;
786 ieee80211_amrr_node_init(&RT2560_VAP(vap)->amrr,
787 &RT2560_NODE(ni)->amrr, ni);
791 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
793 struct rt2560_vap *rvp = RT2560_VAP(vap);
794 struct ifnet *ifp = vap->iv_ic->ic_ifp;
795 struct rt2560_softc *sc = ifp->if_softc;
798 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
799 /* abort TSF synchronization */
800 RAL_WRITE(sc, RT2560_CSR14, 0);
802 /* turn association led off */
803 rt2560_update_led(sc, 0, 0);
806 error = rvp->ral_newstate(vap, nstate, arg);
808 if (error == 0 && nstate == IEEE80211_S_RUN) {
809 struct ieee80211_node *ni = vap->iv_bss;
812 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
813 rt2560_update_plcp(sc);
814 rt2560_set_basicrates(sc);
815 rt2560_set_bssid(sc, ni->ni_bssid);
818 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
819 vap->iv_opmode == IEEE80211_M_IBSS) {
820 m = ieee80211_beacon_alloc(ni, &rvp->ral_bo);
822 if_printf(ifp, "could not allocate beacon\n");
825 ieee80211_ref_node(ni);
826 error = rt2560_tx_bcn(sc, m, ni);
831 /* turn assocation led on */
832 rt2560_update_led(sc, 1, 0);
834 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
835 if (vap->iv_opmode == IEEE80211_M_STA) {
836 /* fake a join to init the tx rate */
837 rt2560_newassoc(ni, 1);
839 rt2560_enable_tsf_sync(sc);
846 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
850 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
856 /* clock C once before the first command */
857 RT2560_EEPROM_CTL(sc, 0);
859 RT2560_EEPROM_CTL(sc, RT2560_S);
860 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
861 RT2560_EEPROM_CTL(sc, RT2560_S);
863 /* write start bit (1) */
864 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
865 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
867 /* write READ opcode (10) */
868 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
869 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
870 RT2560_EEPROM_CTL(sc, RT2560_S);
871 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
873 /* write address (A5-A0 or A7-A0) */
874 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
875 for (; n >= 0; n--) {
876 RT2560_EEPROM_CTL(sc, RT2560_S |
877 (((addr >> n) & 1) << RT2560_SHIFT_D));
878 RT2560_EEPROM_CTL(sc, RT2560_S |
879 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
882 RT2560_EEPROM_CTL(sc, RT2560_S);
884 /* read data Q15-Q0 */
886 for (n = 15; n >= 0; n--) {
887 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
888 tmp = RAL_READ(sc, RT2560_CSR21);
889 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
890 RT2560_EEPROM_CTL(sc, RT2560_S);
893 RT2560_EEPROM_CTL(sc, 0);
895 /* clear Chip Select and clock C */
896 RT2560_EEPROM_CTL(sc, RT2560_S);
897 RT2560_EEPROM_CTL(sc, 0);
898 RT2560_EEPROM_CTL(sc, RT2560_C);
904 * Some frames were processed by the hardware cipher engine and are ready for
908 rt2560_encryption_intr(struct rt2560_softc *sc)
910 struct rt2560_tx_desc *desc;
913 /* retrieve last descriptor index processed by cipher engine */
914 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
915 hw /= RT2560_TX_DESC_SIZE;
917 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
918 BUS_DMASYNC_POSTREAD);
920 while (sc->txq.next_encrypt != hw) {
921 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
922 printf("hw encrypt %d, cur_encrypt %d\n", hw,
923 sc->txq.cur_encrypt);
927 desc = &sc->txq.desc[sc->txq.next_encrypt];
929 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
930 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
933 /* for TKIP, swap eiv field to fix a bug in ASIC */
934 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
935 RT2560_TX_CIPHER_TKIP)
936 desc->eiv = bswap32(desc->eiv);
938 /* mark the frame ready for transmission */
939 desc->flags |= htole32(RT2560_TX_VALID);
940 desc->flags |= htole32(RT2560_TX_BUSY);
942 DPRINTFN(sc, 15, "encryption done idx=%u\n",
943 sc->txq.next_encrypt);
945 sc->txq.next_encrypt =
946 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
949 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
950 BUS_DMASYNC_PREWRITE);
953 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
957 rt2560_tx_intr(struct rt2560_softc *sc)
959 struct ifnet *ifp = sc->sc_ifp;
960 struct rt2560_tx_desc *desc;
961 struct rt2560_tx_data *data;
962 struct rt2560_node *rn;
967 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
968 BUS_DMASYNC_POSTREAD);
971 desc = &sc->txq.desc[sc->txq.next];
972 data = &sc->txq.data[sc->txq.next];
974 flags = le32toh(desc->flags);
975 if ((flags & RT2560_TX_BUSY) ||
976 (flags & RT2560_TX_CIPHER_BUSY) ||
977 !(flags & RT2560_TX_VALID))
980 rn = (struct rt2560_node *)data->ni;
983 switch (flags & RT2560_TX_RESULT_MASK) {
984 case RT2560_TX_SUCCESS:
985 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
986 if (data->rix != IEEE80211_FIXED_RATE_NONE)
987 ieee80211_amrr_tx_complete(&rn->amrr,
988 IEEE80211_AMRR_SUCCESS, 0);
992 case RT2560_TX_SUCCESS_RETRY:
993 retrycnt = RT2560_TX_RETRYCNT(flags);
995 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
997 if (data->rix != IEEE80211_FIXED_RATE_NONE)
998 ieee80211_amrr_tx_complete(&rn->amrr,
999 IEEE80211_AMRR_SUCCESS, retrycnt);
1003 case RT2560_TX_FAIL_RETRY:
1004 retrycnt = RT2560_TX_RETRYCNT(flags);
1006 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
1008 if (data->rix != IEEE80211_FIXED_RATE_NONE)
1009 ieee80211_amrr_tx_complete(&rn->amrr,
1010 IEEE80211_AMRR_FAILURE, retrycnt);
1014 case RT2560_TX_FAIL_INVALID:
1015 case RT2560_TX_FAIL_OTHER:
1017 device_printf(sc->sc_dev, "sending data frame failed "
1022 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1023 BUS_DMASYNC_POSTWRITE);
1024 bus_dmamap_unload(sc->txq.data_dmat, data->map);
1027 ieee80211_free_node(data->ni);
1030 /* descriptor is no longer valid */
1031 desc->flags &= ~htole32(RT2560_TX_VALID);
1033 DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
1036 sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
1039 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1040 BUS_DMASYNC_PREWRITE);
1042 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1043 sc->sc_tx_timer = 0;
1045 if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) {
1046 sc->sc_flags &= ~RT2560_F_DATA_OACTIVE;
1048 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1049 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1050 rt2560_start_locked(ifp);
1055 rt2560_prio_intr(struct rt2560_softc *sc)
1057 struct ifnet *ifp = sc->sc_ifp;
1058 struct rt2560_tx_desc *desc;
1059 struct rt2560_tx_data *data;
1060 struct ieee80211_node *ni;
1064 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1065 BUS_DMASYNC_POSTREAD);
1068 desc = &sc->prioq.desc[sc->prioq.next];
1069 data = &sc->prioq.data[sc->prioq.next];
1071 flags = le32toh(desc->flags);
1072 if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
1075 switch (flags & RT2560_TX_RESULT_MASK) {
1076 case RT2560_TX_SUCCESS:
1077 DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
1080 case RT2560_TX_SUCCESS_RETRY:
1081 DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
1082 (flags >> 5) & 0x7);
1085 case RT2560_TX_FAIL_RETRY:
1086 DPRINTFN(sc, 9, "%s\n",
1087 "sending mgt frame failed (too much retries)");
1090 case RT2560_TX_FAIL_INVALID:
1091 case RT2560_TX_FAIL_OTHER:
1093 device_printf(sc->sc_dev, "sending mgt frame failed "
1098 bus_dmamap_sync(sc->prioq.data_dmat, data->map,
1099 BUS_DMASYNC_POSTWRITE);
1100 bus_dmamap_unload(sc->prioq.data_dmat, data->map);
1107 /* descriptor is no longer valid */
1108 desc->flags &= ~htole32(RT2560_TX_VALID);
1110 DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
1113 sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
1115 if (m->m_flags & M_TXCB)
1116 ieee80211_process_callback(ni, m,
1117 (flags & RT2560_TX_RESULT_MASK) &~
1118 (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
1120 ieee80211_free_node(ni);
1123 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1124 BUS_DMASYNC_PREWRITE);
1126 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1127 sc->sc_tx_timer = 0;
1129 if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) {
1130 sc->sc_flags &= ~RT2560_F_PRIO_OACTIVE;
1132 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1133 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1134 rt2560_start_locked(ifp);
1139 * Some frames were processed by the hardware cipher engine and are ready for
1140 * handoff to the IEEE802.11 layer.
1143 rt2560_decryption_intr(struct rt2560_softc *sc)
1145 struct ifnet *ifp = sc->sc_ifp;
1146 struct ieee80211com *ic = ifp->if_l2com;
1147 struct rt2560_rx_desc *desc;
1148 struct rt2560_rx_data *data;
1149 bus_addr_t physaddr;
1150 struct ieee80211_frame *wh;
1151 struct ieee80211_node *ni;
1152 struct mbuf *mnew, *m;
1155 /* retrieve last decriptor index processed by cipher engine */
1156 hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
1157 hw /= RT2560_RX_DESC_SIZE;
1159 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1160 BUS_DMASYNC_POSTREAD);
1162 for (; sc->rxq.cur_decrypt != hw;) {
1163 desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
1164 data = &sc->rxq.data[sc->rxq.cur_decrypt];
1166 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1167 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1175 if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
1176 (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) {
1182 * Try to allocate a new mbuf for this ring element and load it
1183 * before processing the current mbuf. If the ring element
1184 * cannot be loaded, drop the received packet and reuse the old
1185 * mbuf. In the unlikely case that the old mbuf can't be
1186 * reloaded either, explicitly panic.
1188 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
1194 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1195 BUS_DMASYNC_POSTREAD);
1196 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1198 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1199 mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
1204 /* try to reload the old mbuf */
1205 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1206 mtod(data->m, void *), MCLBYTES,
1207 rt2560_dma_map_addr, &physaddr, 0);
1209 /* very unlikely that it will fail... */
1210 panic("%s: could not load old rx mbuf",
1211 device_get_name(sc->sc_dev));
1218 * New mbuf successfully loaded, update Rx ring and continue
1223 desc->physaddr = htole32(physaddr);
1226 m->m_pkthdr.rcvif = ifp;
1227 m->m_pkthdr.len = m->m_len =
1228 (le32toh(desc->flags) >> 16) & 0xfff;
1230 if (bpf_peers_present(ifp->if_bpf)) {
1231 struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
1232 uint32_t tsf_lo, tsf_hi;
1234 /* get timestamp (low and high 32 bits) */
1235 tsf_hi = RAL_READ(sc, RT2560_CSR17);
1236 tsf_lo = RAL_READ(sc, RT2560_CSR16);
1239 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1241 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1242 (desc->flags & htole32(RT2560_RX_OFDM)) ?
1243 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1244 tap->wr_antenna = sc->rx_ant;
1245 tap->wr_antsignal = RT2560_RSSI(sc, desc->rssi);
1247 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m);
1250 sc->sc_flags |= RT2560_F_INPUT_RUNNING;
1252 wh = mtod(m, struct ieee80211_frame *);
1253 ni = ieee80211_find_rxnode(ic,
1254 (struct ieee80211_frame_min *)wh);
1256 (void) ieee80211_input(ni, m,
1257 RT2560_RSSI(sc, desc->rssi), RT2560_NOISE_FLOOR, 0);
1258 ieee80211_free_node(ni);
1260 (void) ieee80211_input_all(ic, m,
1261 RT2560_RSSI(sc, desc->rssi), RT2560_NOISE_FLOOR, 0);
1264 sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
1265 skip: desc->flags = htole32(RT2560_RX_BUSY);
1267 DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
1269 sc->rxq.cur_decrypt =
1270 (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
1273 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1274 BUS_DMASYNC_PREWRITE);
1278 * Some frames were received. Pass them to the hardware cipher engine before
1279 * sending them to the 802.11 layer.
1282 rt2560_rx_intr(struct rt2560_softc *sc)
1284 struct rt2560_rx_desc *desc;
1285 struct rt2560_rx_data *data;
1287 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1288 BUS_DMASYNC_POSTREAD);
1291 desc = &sc->rxq.desc[sc->rxq.cur];
1292 data = &sc->rxq.data[sc->rxq.cur];
1294 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1295 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1300 if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
1301 (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
1303 * This should not happen since we did not request
1304 * to receive those frames when we filled RXCSR0.
1306 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1307 le32toh(desc->flags));
1311 if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
1312 DPRINTFN(sc, 5, "%s\n", "bad length");
1316 /* mark the frame for decryption */
1317 desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
1319 DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
1321 sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
1324 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1325 BUS_DMASYNC_PREWRITE);
1328 RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
1332 rt2560_beacon_update(struct ieee80211vap *vap, int item)
1334 struct rt2560_vap *rvp = RT2560_VAP(vap);
1335 struct ieee80211_beacon_offsets *bo = &rvp->ral_bo;
1337 setbit(bo->bo_flags, item);
1341 * This function is called periodically in IBSS mode when a new beacon must be
1345 rt2560_beacon_expire(struct rt2560_softc *sc)
1347 struct ifnet *ifp = sc->sc_ifp;
1348 struct ieee80211com *ic = ifp->if_l2com;
1349 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1350 struct rt2560_vap *rvp = RT2560_VAP(vap);
1351 struct rt2560_tx_data *data;
1353 if (ic->ic_opmode != IEEE80211_M_IBSS &&
1354 ic->ic_opmode != IEEE80211_M_HOSTAP)
1357 data = &sc->bcnq.data[sc->bcnq.next];
1359 * Don't send beacon if bsschan isn't set
1361 if (data->ni == NULL)
1364 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1365 bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
1367 /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
1368 ieee80211_beacon_update(data->ni, &rvp->ral_bo, data->m, 1);
1370 rt2560_tx_bcn(sc, data->m, data->ni);
1372 DPRINTFN(sc, 15, "%s", "beacon expired\n");
1374 sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
1379 rt2560_wakeup_expire(struct rt2560_softc *sc)
1381 DPRINTFN(sc, 2, "%s", "wakeup expired\n");
1385 rt2560_intr(void *arg)
1387 struct rt2560_softc *sc = arg;
1388 struct ifnet *ifp = sc->sc_ifp;
1393 /* disable interrupts */
1394 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
1396 /* don't re-enable interrupts if we're shutting down */
1397 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1402 r = RAL_READ(sc, RT2560_CSR7);
1403 RAL_WRITE(sc, RT2560_CSR7, r);
1405 if (r & RT2560_BEACON_EXPIRE)
1406 rt2560_beacon_expire(sc);
1408 if (r & RT2560_WAKEUP_EXPIRE)
1409 rt2560_wakeup_expire(sc);
1411 if (r & RT2560_ENCRYPTION_DONE)
1412 rt2560_encryption_intr(sc);
1414 if (r & RT2560_TX_DONE)
1417 if (r & RT2560_PRIO_DONE)
1418 rt2560_prio_intr(sc);
1420 if (r & RT2560_DECRYPTION_DONE)
1421 rt2560_decryption_intr(sc);
1423 if (r & RT2560_RX_DONE) {
1425 rt2560_encryption_intr(sc);
1428 /* re-enable interrupts */
1429 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
1434 #define RAL_SIFS 10 /* us */
1436 #define RT2560_TXRX_TURNAROUND 10 /* us */
1439 rt2560_plcp_signal(int rate)
1442 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1443 case 12: return 0xb;
1444 case 18: return 0xf;
1445 case 24: return 0xa;
1446 case 36: return 0xe;
1447 case 48: return 0x9;
1448 case 72: return 0xd;
1449 case 96: return 0x8;
1450 case 108: return 0xc;
1452 /* CCK rates (NB: not IEEE std, device-specific) */
1455 case 11: return 0x2;
1456 case 22: return 0x3;
1458 return 0xff; /* XXX unsupported/unknown rate */
1462 rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
1463 uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
1465 struct ifnet *ifp = sc->sc_ifp;
1466 struct ieee80211com *ic = ifp->if_l2com;
1467 uint16_t plcp_length;
1470 desc->flags = htole32(flags);
1471 desc->flags |= htole32(len << 16);
1473 desc->physaddr = htole32(physaddr);
1474 desc->wme = htole16(
1476 RT2560_LOGCWMIN(3) |
1477 RT2560_LOGCWMAX(8));
1479 /* setup PLCP fields */
1480 desc->plcp_signal = rt2560_plcp_signal(rate);
1481 desc->plcp_service = 4;
1483 len += IEEE80211_CRC_LEN;
1484 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) {
1485 desc->flags |= htole32(RT2560_TX_OFDM);
1487 plcp_length = len & 0xfff;
1488 desc->plcp_length_hi = plcp_length >> 6;
1489 desc->plcp_length_lo = plcp_length & 0x3f;
1491 plcp_length = (16 * len + rate - 1) / rate;
1493 remainder = (16 * len) % 22;
1494 if (remainder != 0 && remainder < 7)
1495 desc->plcp_service |= RT2560_PLCP_LENGEXT;
1497 desc->plcp_length_hi = plcp_length >> 8;
1498 desc->plcp_length_lo = plcp_length & 0xff;
1500 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1501 desc->plcp_signal |= 0x08;
1505 desc->flags |= htole32(RT2560_TX_VALID);
1506 desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
1507 : htole32(RT2560_TX_BUSY);
1511 rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
1512 struct ieee80211_node *ni)
1514 struct ieee80211vap *vap = ni->ni_vap;
1515 struct ieee80211com *ic = ni->ni_ic;
1516 struct ifnet *ifp = sc->sc_ifp;
1517 struct rt2560_tx_desc *desc;
1518 struct rt2560_tx_data *data;
1519 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1520 int nsegs, rate, error;
1522 desc = &sc->bcnq.desc[sc->bcnq.cur];
1523 data = &sc->bcnq.data[sc->bcnq.cur];
1525 /* XXX maybe a separate beacon rate? */
1526 rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
1528 error = bus_dmamap_load_mbuf_sg(sc->bcnq.data_dmat, data->map, m0,
1529 segs, &nsegs, BUS_DMA_NOWAIT);
1531 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1537 if (bpf_peers_present(ifp->if_bpf)) {
1538 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1541 tap->wt_rate = rate;
1542 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1543 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1544 tap->wt_antenna = sc->tx_ant;
1546 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
1552 rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
1553 RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr);
1555 DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
1556 m0->m_pkthdr.len, sc->bcnq.cur, rate);
1558 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1559 bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
1560 BUS_DMASYNC_PREWRITE);
1562 sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
1568 rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
1569 struct ieee80211_node *ni)
1571 struct ieee80211vap *vap = ni->ni_vap;
1572 struct ieee80211com *ic = ni->ni_ic;
1573 struct ifnet *ifp = sc->sc_ifp;
1574 struct rt2560_tx_desc *desc;
1575 struct rt2560_tx_data *data;
1576 struct ieee80211_frame *wh;
1577 struct ieee80211_key *k;
1578 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1581 int nsegs, rate, error;
1583 desc = &sc->prioq.desc[sc->prioq.cur];
1584 data = &sc->prioq.data[sc->prioq.cur];
1586 rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
1588 wh = mtod(m0, struct ieee80211_frame *);
1590 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1591 k = ieee80211_crypto_encap(ni, m0);
1598 error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
1601 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1607 if (bpf_peers_present(ifp->if_bpf)) {
1608 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1611 tap->wt_rate = rate;
1612 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1613 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1614 tap->wt_antenna = sc->tx_ant;
1616 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
1621 /* management frames are not taken into account for amrr */
1622 data->rix = IEEE80211_FIXED_RATE_NONE;
1624 wh = mtod(m0, struct ieee80211_frame *);
1626 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1627 flags |= RT2560_TX_ACK;
1629 dur = ieee80211_ack_duration(sc->sc_rates,
1630 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1631 *(uint16_t *)wh->i_dur = htole16(dur);
1633 /* tell hardware to add timestamp for probe responses */
1634 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1635 IEEE80211_FC0_TYPE_MGT &&
1636 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1637 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1638 flags |= RT2560_TX_TIMESTAMP;
1641 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
1644 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1645 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1646 BUS_DMASYNC_PREWRITE);
1648 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1649 m0->m_pkthdr.len, sc->prioq.cur, rate);
1653 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1654 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1660 rt2560_sendprot(struct rt2560_softc *sc,
1661 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1663 struct ieee80211com *ic = ni->ni_ic;
1664 const struct ieee80211_frame *wh;
1665 struct rt2560_tx_desc *desc;
1666 struct rt2560_tx_data *data;
1668 int protrate, ackrate, pktlen, flags, isshort, error;
1670 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1673 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1674 ("protection %d", prot));
1676 wh = mtod(m, const struct ieee80211_frame *);
1677 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1679 protrate = ieee80211_ctl_rate(sc->sc_rates, rate);
1680 ackrate = ieee80211_ack_rate(sc->sc_rates, rate);
1682 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1683 dur = ieee80211_compute_duration(sc->sc_rates, pktlen, rate, isshort)
1684 + ieee80211_ack_duration(sc->sc_rates, rate, isshort);
1685 flags = RT2560_TX_MORE_FRAG;
1686 if (prot == IEEE80211_PROT_RTSCTS) {
1687 /* NB: CTS is the same size as an ACK */
1688 dur += ieee80211_ack_duration(sc->sc_rates, rate, isshort);
1689 flags |= RT2560_TX_ACK;
1690 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1692 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1694 if (mprot == NULL) {
1695 /* XXX stat + msg */
1699 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1700 data = &sc->txq.data[sc->txq.cur_encrypt];
1702 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1703 mprot, segs, &nsegs, 0);
1705 device_printf(sc->sc_dev,
1706 "could not map mbuf (error %d)\n", error);
1712 data->ni = ieee80211_ref_node(ni);
1713 /* ctl frames are not taken into account for amrr */
1714 data->rix = IEEE80211_FIXED_RATE_NONE;
1716 rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
1719 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1720 BUS_DMASYNC_PREWRITE);
1723 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1729 rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
1730 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
1732 struct ifnet *ifp = sc->sc_ifp;
1733 struct ieee80211com *ic = ifp->if_l2com;
1734 struct rt2560_tx_desc *desc;
1735 struct rt2560_tx_data *data;
1736 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1738 int nsegs, rate, error;
1740 desc = &sc->prioq.desc[sc->prioq.cur];
1741 data = &sc->prioq.data[sc->prioq.cur];
1743 rate = params->ibp_rate0 & IEEE80211_RATE_VAL;
1746 /* XXX fall back to mcast/mgmt rate? */
1752 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1753 flags |= RT2560_TX_ACK;
1754 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1755 error = rt2560_sendprot(sc, m0, ni,
1756 params->ibp_flags & IEEE80211_BPF_RTS ?
1757 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1763 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1766 error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
1769 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1775 if (bpf_peers_present(ifp->if_bpf)) {
1776 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1779 tap->wt_rate = rate;
1780 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
1781 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
1782 tap->wt_antenna = sc->tx_ant;
1784 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
1790 /* XXX need to setup descriptor ourself */
1791 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
1792 rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
1795 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1796 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1797 BUS_DMASYNC_PREWRITE);
1799 DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n",
1800 m0->m_pkthdr.len, sc->prioq.cur, rate);
1804 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1805 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1811 rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
1812 struct ieee80211_node *ni)
1814 struct ieee80211vap *vap = ni->ni_vap;
1815 struct ieee80211com *ic = ni->ni_ic;
1816 struct ifnet *ifp = sc->sc_ifp;
1817 struct rt2560_tx_desc *desc;
1818 struct rt2560_tx_data *data;
1819 struct ieee80211_frame *wh;
1820 const struct ieee80211_txparam *tp;
1821 struct ieee80211_key *k;
1823 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1826 int nsegs, rate, error;
1828 wh = mtod(m0, struct ieee80211_frame *);
1830 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1831 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1832 rate = tp->mcastrate;
1833 } else if (m0->m_flags & M_EAPOL) {
1834 rate = tp->mgmtrate;
1835 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1836 rate = tp->ucastrate;
1838 (void) ieee80211_amrr_choose(ni, &RT2560_NODE(ni)->amrr);
1839 rate = ni->ni_txrate;
1842 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1843 k = ieee80211_crypto_encap(ni, m0);
1849 /* packet header may have moved, reset our local pointer */
1850 wh = mtod(m0, struct ieee80211_frame *);
1854 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1855 int prot = IEEE80211_PROT_NONE;
1856 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1857 prot = IEEE80211_PROT_RTSCTS;
1858 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1859 ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM)
1860 prot = ic->ic_protmode;
1861 if (prot != IEEE80211_PROT_NONE) {
1862 error = rt2560_sendprot(sc, m0, ni, prot, rate);
1867 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1871 data = &sc->txq.data[sc->txq.cur_encrypt];
1872 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1874 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, m0,
1876 if (error != 0 && error != EFBIG) {
1877 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1883 mnew = m_defrag(m0, M_DONTWAIT);
1885 device_printf(sc->sc_dev,
1886 "could not defragment mbuf\n");
1892 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1893 m0, segs, &nsegs, 0);
1895 device_printf(sc->sc_dev,
1896 "could not map mbuf (error %d)\n", error);
1901 /* packet header may have moved, reset our local pointer */
1902 wh = mtod(m0, struct ieee80211_frame *);
1905 if (bpf_peers_present(ifp->if_bpf)) {
1906 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1909 tap->wt_rate = rate;
1910 tap->wt_antenna = sc->tx_ant;
1912 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0);
1918 /* remember link conditions for rate adaptation algorithm */
1919 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1920 data->rix = ni->ni_txrate;
1921 /* XXX probably need last rssi value and not avg */
1922 data->rssi = ic->ic_node_getrssi(ni);
1924 data->rix = IEEE80211_FIXED_RATE_NONE;
1926 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1927 flags |= RT2560_TX_ACK;
1929 dur = ieee80211_ack_duration(sc->sc_rates,
1930 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1931 *(uint16_t *)wh->i_dur = htole16(dur);
1934 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
1937 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1938 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1939 BUS_DMASYNC_PREWRITE);
1941 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1942 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
1946 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1947 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
1953 rt2560_start_locked(struct ifnet *ifp)
1955 struct rt2560_softc *sc = ifp->if_softc;
1957 struct ieee80211_node *ni;
1959 RAL_LOCK_ASSERT(sc);
1962 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1965 if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
1966 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1967 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1968 sc->sc_flags |= RT2560_F_DATA_OACTIVE;
1972 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1973 m = ieee80211_encap(ni, m);
1975 ieee80211_free_node(ni);
1980 if (rt2560_tx_data(sc, m, ni) != 0) {
1981 ieee80211_free_node(ni);
1986 sc->sc_tx_timer = 5;
1991 rt2560_start(struct ifnet *ifp)
1993 struct rt2560_softc *sc = ifp->if_softc;
1996 rt2560_start_locked(ifp);
2001 rt2560_watchdog(void *arg)
2003 struct rt2560_softc *sc = arg;
2004 struct ifnet *ifp = sc->sc_ifp;
2006 RAL_LOCK_ASSERT(sc);
2008 KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running"));
2010 if (sc->sc_invalid) /* card ejected */
2013 rt2560_encryption_intr(sc);
2016 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
2017 if_printf(ifp, "device timeout\n");
2018 rt2560_init_locked(sc);
2020 /* NB: callout is reset in rt2560_init() */
2023 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
2027 rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
2029 struct rt2560_softc *sc = ifp->if_softc;
2030 struct ieee80211com *ic = ifp->if_l2com;
2031 struct ifreq *ifr = (struct ifreq *) data;
2032 int error = 0, startall = 0;
2037 if (ifp->if_flags & IFF_UP) {
2038 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2039 rt2560_init_locked(sc);
2042 rt2560_update_promisc(ifp);
2044 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2045 rt2560_stop_locked(sc);
2049 ieee80211_start_all(ic);
2052 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
2055 error = ether_ioctl(ifp, cmd, data);
2065 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
2070 for (ntries = 0; ntries < 100; ntries++) {
2071 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2075 if (ntries == 100) {
2076 device_printf(sc->sc_dev, "could not write to BBP\n");
2080 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
2081 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
2083 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
2087 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
2092 for (ntries = 0; ntries < 100; ntries++) {
2093 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2097 if (ntries == 100) {
2098 device_printf(sc->sc_dev, "could not read from BBP\n");
2102 val = RT2560_BBP_BUSY | reg << 8;
2103 RAL_WRITE(sc, RT2560_BBPCSR, val);
2105 for (ntries = 0; ntries < 100; ntries++) {
2106 val = RAL_READ(sc, RT2560_BBPCSR);
2107 if (!(val & RT2560_BBP_BUSY))
2112 device_printf(sc->sc_dev, "could not read from BBP\n");
2117 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2122 for (ntries = 0; ntries < 100; ntries++) {
2123 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2127 if (ntries == 100) {
2128 device_printf(sc->sc_dev, "could not write to RF\n");
2132 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2134 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2136 /* remember last written value in sc */
2137 sc->rf_regs[reg] = val;
2139 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2143 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2145 struct ifnet *ifp = sc->sc_ifp;
2146 struct ieee80211com *ic = ifp->if_l2com;
2150 chan = ieee80211_chan2ieee(ic, c);
2151 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2153 sc->sc_rates = ieee80211_get_ratetable(c);
2155 if (IEEE80211_IS_CHAN_2GHZ(c))
2156 power = min(sc->txpow[chan - 1], 31);
2160 /* adjust txpower using ifconfig settings */
2161 power -= (100 - ic->ic_txpowlimit) / 8;
2163 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2165 switch (sc->rf_rev) {
2166 case RT2560_RF_2522:
2167 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2168 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2169 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2172 case RT2560_RF_2523:
2173 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2174 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2175 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2176 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2179 case RT2560_RF_2524:
2180 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2181 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2182 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2183 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2186 case RT2560_RF_2525:
2187 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2188 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2189 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2190 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2192 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2193 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2194 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2195 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2198 case RT2560_RF_2525E:
2199 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2200 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2201 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2202 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2205 case RT2560_RF_2526:
2206 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2207 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2208 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2210 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2211 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2212 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2216 case RT2560_RF_5222:
2217 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2219 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2220 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2221 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2222 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2225 printf("unknown ral rev=%d\n", sc->rf_rev);
2229 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2230 /* set Japan filter bit for channel 14 */
2231 tmp = rt2560_bbp_read(sc, 70);
2233 tmp &= ~RT2560_JAPAN_FILTER;
2235 tmp |= RT2560_JAPAN_FILTER;
2237 rt2560_bbp_write(sc, 70, tmp);
2239 /* clear CRC errors */
2240 RAL_READ(sc, RT2560_CNT0);
2245 rt2560_set_channel(struct ieee80211com *ic)
2247 struct ifnet *ifp = ic->ic_ifp;
2248 struct rt2560_softc *sc = ifp->if_softc;
2251 rt2560_set_chan(sc, ic->ic_curchan);
2253 sc->sc_txtap.wt_chan_freq = htole16(ic->ic_curchan->ic_freq);
2254 sc->sc_txtap.wt_chan_flags = htole16(ic->ic_curchan->ic_flags);
2255 sc->sc_rxtap.wr_chan_freq = htole16(ic->ic_curchan->ic_freq);
2256 sc->sc_rxtap.wr_chan_flags = htole16(ic->ic_curchan->ic_flags);
2263 * Disable RF auto-tuning.
2266 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2270 if (sc->rf_rev != RT2560_RF_2523) {
2271 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2272 rt2560_rf_write(sc, RAL_RF1, tmp);
2275 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2276 rt2560_rf_write(sc, RAL_RF3, tmp);
2278 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2283 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2287 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2289 struct ifnet *ifp = sc->sc_ifp;
2290 struct ieee80211com *ic = ifp->if_l2com;
2291 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2292 uint16_t logcwmin, preload;
2295 /* first, disable TSF synchronization */
2296 RAL_WRITE(sc, RT2560_CSR14, 0);
2298 tmp = 16 * vap->iv_bss->ni_intval;
2299 RAL_WRITE(sc, RT2560_CSR12, tmp);
2301 RAL_WRITE(sc, RT2560_CSR13, 0);
2304 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2305 tmp = logcwmin << 16 | preload;
2306 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2308 /* finally, enable TSF synchronization */
2309 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2310 if (ic->ic_opmode == IEEE80211_M_STA)
2311 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2313 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2314 RT2560_ENABLE_BEACON_GENERATOR;
2315 RAL_WRITE(sc, RT2560_CSR14, tmp);
2317 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2321 rt2560_update_plcp(struct rt2560_softc *sc)
2323 struct ifnet *ifp = sc->sc_ifp;
2324 struct ieee80211com *ic = ifp->if_l2com;
2326 /* no short preamble for 1Mbps */
2327 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2329 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2330 /* values taken from the reference driver */
2331 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2332 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2333 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2335 /* same values as above or'ed 0x8 */
2336 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2337 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2338 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2341 DPRINTF(sc, "updating PLCP for %s preamble\n",
2342 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2346 * This function can be called by ieee80211_set_shortslottime(). Refer to
2347 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2350 rt2560_update_slot(struct ifnet *ifp)
2352 struct rt2560_softc *sc = ifp->if_softc;
2353 struct ieee80211com *ic = ifp->if_l2com;
2355 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2358 #ifndef FORCE_SLOTTIME
2359 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
2362 * Setting slot time according to "short slot time" capability
2363 * in beacon/probe_resp seems to cause problem to acknowledge
2364 * certain AP's data frames transimitted at CCK/DS rates: the
2365 * problematic AP keeps retransmitting data frames, probably
2366 * because MAC level acks are not received by hardware.
2367 * So we cheat a little bit here by claiming we are capable of
2368 * "short slot time" but setting hardware slot time to the normal
2369 * slot time. ral(4) does not seem to have trouble to receive
2370 * frames transmitted using short slot time even if hardware
2371 * slot time is set to normal slot time. If we didn't use this
2372 * trick, we would have to claim that short slot time is not
2373 * supported; this would give relative poor RX performance
2374 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2380 /* update the MAC slot boundaries */
2381 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2382 tx_pifs = tx_sifs + slottime;
2383 tx_difs = tx_sifs + 2 * slottime;
2384 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2386 tmp = RAL_READ(sc, RT2560_CSR11);
2387 tmp = (tmp & ~0x1f00) | slottime << 8;
2388 RAL_WRITE(sc, RT2560_CSR11, tmp);
2390 tmp = tx_pifs << 16 | tx_sifs;
2391 RAL_WRITE(sc, RT2560_CSR18, tmp);
2393 tmp = eifs << 16 | tx_difs;
2394 RAL_WRITE(sc, RT2560_CSR19, tmp);
2396 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2400 rt2560_set_basicrates(struct rt2560_softc *sc)
2402 struct ifnet *ifp = sc->sc_ifp;
2403 struct ieee80211com *ic = ifp->if_l2com;
2405 /* update basic rate set */
2406 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2407 /* 11b basic rates: 1, 2Mbps */
2408 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x3);
2409 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) {
2410 /* 11a basic rates: 6, 12, 24Mbps */
2411 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x150);
2413 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
2414 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x15f);
2419 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2423 /* set ON period to 70ms and OFF period to 30ms */
2424 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2425 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2429 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2433 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2434 RAL_WRITE(sc, RT2560_CSR5, tmp);
2436 tmp = bssid[4] | bssid[5] << 8;
2437 RAL_WRITE(sc, RT2560_CSR6, tmp);
2439 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":");
2443 rt2560_set_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2447 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2448 RAL_WRITE(sc, RT2560_CSR3, tmp);
2450 tmp = addr[4] | addr[5] << 8;
2451 RAL_WRITE(sc, RT2560_CSR4, tmp);
2453 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":");
2457 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2461 tmp = RAL_READ(sc, RT2560_CSR3);
2462 addr[0] = tmp & 0xff;
2463 addr[1] = (tmp >> 8) & 0xff;
2464 addr[2] = (tmp >> 16) & 0xff;
2465 addr[3] = (tmp >> 24);
2467 tmp = RAL_READ(sc, RT2560_CSR4);
2468 addr[4] = tmp & 0xff;
2469 addr[5] = (tmp >> 8) & 0xff;
2473 rt2560_update_promisc(struct ifnet *ifp)
2475 struct rt2560_softc *sc = ifp->if_softc;
2478 tmp = RAL_READ(sc, RT2560_RXCSR0);
2480 tmp &= ~RT2560_DROP_NOT_TO_ME;
2481 if (!(ifp->if_flags & IFF_PROMISC))
2482 tmp |= RT2560_DROP_NOT_TO_ME;
2484 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2486 DPRINTF(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
2487 "entering" : "leaving");
2491 rt2560_get_rf(int rev)
2494 case RT2560_RF_2522: return "RT2522";
2495 case RT2560_RF_2523: return "RT2523";
2496 case RT2560_RF_2524: return "RT2524";
2497 case RT2560_RF_2525: return "RT2525";
2498 case RT2560_RF_2525E: return "RT2525e";
2499 case RT2560_RF_2526: return "RT2526";
2500 case RT2560_RF_5222: return "RT5222";
2501 default: return "unknown";
2506 rt2560_read_config(struct rt2560_softc *sc)
2511 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2512 sc->rf_rev = (val >> 11) & 0x7;
2513 sc->hw_radio = (val >> 10) & 0x1;
2514 sc->led_mode = (val >> 6) & 0x7;
2515 sc->rx_ant = (val >> 4) & 0x3;
2516 sc->tx_ant = (val >> 2) & 0x3;
2517 sc->nb_ant = val & 0x3;
2519 /* read default values for BBP registers */
2520 for (i = 0; i < 16; i++) {
2521 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2522 if (val == 0 || val == 0xffff)
2525 sc->bbp_prom[i].reg = val >> 8;
2526 sc->bbp_prom[i].val = val & 0xff;
2529 /* read Tx power for all b/g channels */
2530 for (i = 0; i < 14 / 2; i++) {
2531 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2532 sc->txpow[i * 2] = val & 0xff;
2533 sc->txpow[i * 2 + 1] = val >> 8;
2535 for (i = 0; i < 14; ++i) {
2536 if (sc->txpow[i] > 31)
2540 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2541 if ((val & 0xff) == 0xff)
2542 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2544 sc->rssi_corr = val & 0xff;
2545 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2546 sc->rssi_corr, val);
2551 rt2560_scan_start(struct ieee80211com *ic)
2553 struct ifnet *ifp = ic->ic_ifp;
2554 struct rt2560_softc *sc = ifp->if_softc;
2556 /* abort TSF synchronization */
2557 RAL_WRITE(sc, RT2560_CSR14, 0);
2558 rt2560_set_bssid(sc, ifp->if_broadcastaddr);
2562 rt2560_scan_end(struct ieee80211com *ic)
2564 struct ifnet *ifp = ic->ic_ifp;
2565 struct rt2560_softc *sc = ifp->if_softc;
2566 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2568 rt2560_enable_tsf_sync(sc);
2569 /* XXX keep local copy */
2570 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2574 rt2560_bbp_init(struct rt2560_softc *sc)
2576 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2579 /* wait for BBP to be ready */
2580 for (ntries = 0; ntries < 100; ntries++) {
2581 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2585 if (ntries == 100) {
2586 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2590 /* initialize BBP registers to default values */
2591 for (i = 0; i < N(rt2560_def_bbp); i++) {
2592 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2593 rt2560_def_bbp[i].val);
2596 /* initialize BBP registers to values stored in EEPROM */
2597 for (i = 0; i < 16; i++) {
2598 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2600 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2602 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2609 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2614 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2616 tx |= RT2560_BBP_ANTA;
2617 else if (antenna == 2)
2618 tx |= RT2560_BBP_ANTB;
2620 tx |= RT2560_BBP_DIVERSITY;
2622 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2623 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2624 sc->rf_rev == RT2560_RF_5222)
2625 tx |= RT2560_BBP_FLIPIQ;
2627 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2629 /* update values for CCK and OFDM in BBPCSR1 */
2630 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2631 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2632 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2636 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2640 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2642 rx |= RT2560_BBP_ANTA;
2643 else if (antenna == 2)
2644 rx |= RT2560_BBP_ANTB;
2646 rx |= RT2560_BBP_DIVERSITY;
2648 /* need to force no I/Q flip for RF 2525e and 2526 */
2649 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2650 rx &= ~RT2560_BBP_FLIPIQ;
2652 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2656 rt2560_init_locked(struct rt2560_softc *sc)
2658 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2659 struct ifnet *ifp = sc->sc_ifp;
2660 struct ieee80211com *ic = ifp->if_l2com;
2664 RAL_LOCK_ASSERT(sc);
2666 rt2560_stop_locked(sc);
2668 /* setup tx rings */
2669 tmp = RT2560_PRIO_RING_COUNT << 24 |
2670 RT2560_ATIM_RING_COUNT << 16 |
2671 RT2560_TX_RING_COUNT << 8 |
2672 RT2560_TX_DESC_SIZE;
2674 /* rings must be initialized in this exact order */
2675 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2676 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2677 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2678 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2679 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2682 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2684 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2685 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2687 /* initialize MAC registers to default values */
2688 for (i = 0; i < N(rt2560_def_mac); i++)
2689 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2691 IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
2692 rt2560_set_macaddr(sc, ic->ic_myaddr);
2694 /* set basic rate set (will be updated later) */
2695 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2697 rt2560_update_slot(ifp);
2698 rt2560_update_plcp(sc);
2699 rt2560_update_led(sc, 0, 0);
2701 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2702 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2704 if (rt2560_bbp_init(sc) != 0) {
2710 rt2560_set_txantenna(sc, sc->tx_ant);
2711 rt2560_set_rxantenna(sc, sc->rx_ant);
2713 /* set default BSS channel */
2714 rt2560_set_chan(sc, ic->ic_curchan);
2717 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2718 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2719 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2720 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2721 tmp |= RT2560_DROP_TODS;
2722 if (!(ifp->if_flags & IFF_PROMISC))
2723 tmp |= RT2560_DROP_NOT_TO_ME;
2725 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2727 /* clear old FCS and Rx FIFO errors */
2728 RAL_READ(sc, RT2560_CNT0);
2729 RAL_READ(sc, RT2560_CNT4);
2731 /* clear any pending interrupts */
2732 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2734 /* enable interrupts */
2735 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2737 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2738 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2740 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
2745 rt2560_init(void *priv)
2747 struct rt2560_softc *sc = priv;
2748 struct ifnet *ifp = sc->sc_ifp;
2749 struct ieee80211com *ic = ifp->if_l2com;
2752 rt2560_init_locked(sc);
2755 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2756 ieee80211_start_all(ic); /* start all vap's */
2760 rt2560_stop_locked(struct rt2560_softc *sc)
2762 struct ifnet *ifp = sc->sc_ifp;
2763 volatile int *flags = &sc->sc_flags;
2765 RAL_LOCK_ASSERT(sc);
2767 while (*flags & RT2560_F_INPUT_RUNNING)
2768 msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10);
2770 callout_stop(&sc->watchdog_ch);
2771 sc->sc_tx_timer = 0;
2773 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2774 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2777 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2780 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2782 /* reset ASIC (imply reset BBP) */
2783 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2784 RAL_WRITE(sc, RT2560_CSR1, 0);
2786 /* disable interrupts */
2787 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2789 /* reset Tx and Rx rings */
2790 rt2560_reset_tx_ring(sc, &sc->txq);
2791 rt2560_reset_tx_ring(sc, &sc->atimq);
2792 rt2560_reset_tx_ring(sc, &sc->prioq);
2793 rt2560_reset_tx_ring(sc, &sc->bcnq);
2794 rt2560_reset_rx_ring(sc, &sc->rxq);
2796 sc->sc_flags &= ~(RT2560_F_PRIO_OACTIVE | RT2560_F_DATA_OACTIVE);
2800 rt2560_stop(void *arg)
2802 struct rt2560_softc *sc = arg;
2805 rt2560_stop_locked(sc);
2810 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2811 const struct ieee80211_bpf_params *params)
2813 struct ieee80211com *ic = ni->ni_ic;
2814 struct ifnet *ifp = ic->ic_ifp;
2815 struct rt2560_softc *sc = ifp->if_softc;
2819 /* prevent management frames from being sent if we're not ready */
2820 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2823 ieee80211_free_node(ni);
2826 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2827 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2828 sc->sc_flags |= RT2560_F_PRIO_OACTIVE;
2831 ieee80211_free_node(ni);
2832 return ENOBUFS; /* XXX */
2837 if (params == NULL) {
2839 * Legacy path; interpret frame contents to decide
2840 * precisely how to send the frame.
2842 if (rt2560_tx_mgt(sc, m, ni) != 0)
2846 * Caller supplied explicit parameters to use in
2847 * sending the frame.
2849 if (rt2560_tx_raw(sc, m, ni, params))
2852 sc->sc_tx_timer = 5;
2859 ieee80211_free_node(ni);
2861 return EIO; /* XXX */