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_var.h>
49 #include <net/if_arp.h>
50 #include <net/ethernet.h>
51 #include <net/if_dl.h>
52 #include <net/if_media.h>
53 #include <net/if_types.h>
55 #include <net80211/ieee80211_var.h>
56 #include <net80211/ieee80211_radiotap.h>
57 #include <net80211/ieee80211_regdomain.h>
58 #include <net80211/ieee80211_ratectl.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 [IFNAMSIZ], int, enum ieee80211_opmode,
90 int, const uint8_t [IEEE80211_ADDR_LEN],
91 const uint8_t [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 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_getradiocaps(struct ieee80211com *, int, int *,
121 struct ieee80211_channel[]);
122 static void rt2560_set_channel(struct ieee80211com *);
123 static void rt2560_setup_tx_desc(struct rt2560_softc *,
124 struct rt2560_tx_desc *, uint32_t, int, int, int,
126 static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
127 struct ieee80211_node *);
128 static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
129 struct ieee80211_node *);
130 static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
131 struct ieee80211_node *);
132 static int rt2560_transmit(struct ieee80211com *, struct mbuf *);
133 static void rt2560_start(struct rt2560_softc *);
134 static void rt2560_watchdog(void *);
135 static void rt2560_parent(struct ieee80211com *);
136 static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
138 static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
139 static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
141 static void rt2560_set_chan(struct rt2560_softc *,
142 struct ieee80211_channel *);
144 static void rt2560_disable_rf_tune(struct rt2560_softc *);
146 static void rt2560_enable_tsf_sync(struct rt2560_softc *);
147 static void rt2560_enable_tsf(struct rt2560_softc *);
148 static void rt2560_update_plcp(struct rt2560_softc *);
149 static void rt2560_update_slot(struct ieee80211com *);
150 static void rt2560_set_basicrates(struct rt2560_softc *,
151 const struct ieee80211_rateset *);
152 static void rt2560_update_led(struct rt2560_softc *, int, int);
153 static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
154 static void rt2560_set_macaddr(struct rt2560_softc *,
156 static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
157 static void rt2560_update_promisc(struct ieee80211com *);
158 static const char *rt2560_get_rf(int);
159 static void rt2560_read_config(struct rt2560_softc *);
160 static int rt2560_bbp_init(struct rt2560_softc *);
161 static void rt2560_set_txantenna(struct rt2560_softc *, int);
162 static void rt2560_set_rxantenna(struct rt2560_softc *, int);
163 static void rt2560_init_locked(struct rt2560_softc *);
164 static void rt2560_init(void *);
165 static void rt2560_stop_locked(struct rt2560_softc *);
166 static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
167 const struct ieee80211_bpf_params *);
169 static const struct {
172 } rt2560_def_mac[] = {
176 static const struct {
179 } rt2560_def_bbp[] = {
183 static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
184 static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
185 static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
186 static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
187 static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
188 static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
189 static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
190 static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
192 static const uint8_t rt2560_chan_5ghz[] =
193 { 36, 40, 44, 48, 52, 56, 60, 64,
194 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
195 149, 153, 157, 161 };
197 static const struct {
200 } rt2560_rf5222[] = {
205 rt2560_attach(device_t dev, int id)
207 struct rt2560_softc *sc = device_get_softc(dev);
208 struct ieee80211com *ic = &sc->sc_ic;
213 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
214 MTX_DEF | MTX_RECURSE);
216 callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
217 mbufq_init(&sc->sc_snd, ifqmaxlen);
219 /* retrieve RT2560 rev. no */
220 sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
222 /* retrieve RF rev. no and various other things from EEPROM */
223 rt2560_read_config(sc);
225 device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
226 sc->asic_rev, rt2560_get_rf(sc->rf_rev));
229 * Allocate Tx and Rx rings.
231 error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
233 device_printf(sc->sc_dev, "could not allocate Tx ring\n");
237 error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
239 device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
243 error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
245 device_printf(sc->sc_dev, "could not allocate Prio ring\n");
249 error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
251 device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
255 error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
257 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
261 /* retrieve MAC address */
262 rt2560_get_macaddr(sc, ic->ic_macaddr);
265 ic->ic_name = device_get_nameunit(dev);
266 ic->ic_opmode = IEEE80211_M_STA;
267 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
269 /* set device capabilities */
271 IEEE80211_C_STA /* station mode */
272 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
273 | IEEE80211_C_HOSTAP /* hostap mode */
274 | IEEE80211_C_MONITOR /* monitor mode */
275 | IEEE80211_C_AHDEMO /* adhoc demo mode */
276 | IEEE80211_C_WDS /* 4-address traffic works */
277 | IEEE80211_C_MBSS /* mesh point link mode */
278 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
279 | IEEE80211_C_SHSLOT /* short slot time supported */
280 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
281 | IEEE80211_C_BGSCAN /* capable of bg scanning */
283 | IEEE80211_C_TXFRAG /* handle tx frags */
287 rt2560_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
290 ieee80211_ifattach(ic);
291 ic->ic_raw_xmit = rt2560_raw_xmit;
292 ic->ic_updateslot = rt2560_update_slot;
293 ic->ic_update_promisc = rt2560_update_promisc;
294 ic->ic_scan_start = rt2560_scan_start;
295 ic->ic_scan_end = rt2560_scan_end;
296 ic->ic_getradiocaps = rt2560_getradiocaps;
297 ic->ic_set_channel = rt2560_set_channel;
299 ic->ic_vap_create = rt2560_vap_create;
300 ic->ic_vap_delete = rt2560_vap_delete;
301 ic->ic_parent = rt2560_parent;
302 ic->ic_transmit = rt2560_transmit;
304 ieee80211_radiotap_attach(ic,
305 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
306 RT2560_TX_RADIOTAP_PRESENT,
307 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
308 RT2560_RX_RADIOTAP_PRESENT);
311 * Add a few sysctl knobs.
314 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
315 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
316 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
318 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
319 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
320 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
322 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
323 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
324 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
327 ieee80211_announce(ic);
331 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
332 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
333 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
334 fail2: rt2560_free_tx_ring(sc, &sc->txq);
335 fail1: mtx_destroy(&sc->sc_mtx);
341 rt2560_detach(void *xsc)
343 struct rt2560_softc *sc = xsc;
344 struct ieee80211com *ic = &sc->sc_ic;
348 ieee80211_ifdetach(ic);
349 mbufq_drain(&sc->sc_snd);
351 rt2560_free_tx_ring(sc, &sc->txq);
352 rt2560_free_tx_ring(sc, &sc->atimq);
353 rt2560_free_tx_ring(sc, &sc->prioq);
354 rt2560_free_tx_ring(sc, &sc->bcnq);
355 rt2560_free_rx_ring(sc, &sc->rxq);
357 mtx_destroy(&sc->sc_mtx);
362 static struct ieee80211vap *
363 rt2560_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
364 enum ieee80211_opmode opmode, int flags,
365 const uint8_t bssid[IEEE80211_ADDR_LEN],
366 const uint8_t mac[IEEE80211_ADDR_LEN])
368 struct rt2560_softc *sc = ic->ic_softc;
369 struct rt2560_vap *rvp;
370 struct ieee80211vap *vap;
373 case IEEE80211_M_STA:
374 case IEEE80211_M_IBSS:
375 case IEEE80211_M_AHDEMO:
376 case IEEE80211_M_MONITOR:
377 case IEEE80211_M_HOSTAP:
378 case IEEE80211_M_MBSS:
380 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
381 device_printf(sc->sc_dev, "only 1 vap supported\n");
384 if (opmode == IEEE80211_M_STA)
385 flags |= IEEE80211_CLONE_NOBEACONS;
387 case IEEE80211_M_WDS:
388 if (TAILQ_EMPTY(&ic->ic_vaps) ||
389 ic->ic_opmode != IEEE80211_M_HOSTAP) {
390 device_printf(sc->sc_dev,
391 "wds only supported in ap mode\n");
395 * Silently remove any request for a unique
396 * bssid; WDS vap's always share the local
399 flags &= ~IEEE80211_CLONE_BSSID;
402 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
405 rvp = malloc(sizeof(struct rt2560_vap), M_80211_VAP, M_WAITOK | M_ZERO);
407 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
409 /* override state transition machine */
410 rvp->ral_newstate = vap->iv_newstate;
411 vap->iv_newstate = rt2560_newstate;
412 vap->iv_update_beacon = rt2560_beacon_update;
414 ieee80211_ratectl_init(vap);
416 ieee80211_vap_attach(vap, ieee80211_media_change,
417 ieee80211_media_status, mac);
418 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
419 ic->ic_opmode = opmode;
424 rt2560_vap_delete(struct ieee80211vap *vap)
426 struct rt2560_vap *rvp = RT2560_VAP(vap);
428 ieee80211_ratectl_deinit(vap);
429 ieee80211_vap_detach(vap);
430 free(rvp, M_80211_VAP);
434 rt2560_resume(void *xsc)
436 struct rt2560_softc *sc = xsc;
438 if (sc->sc_ic.ic_nrunning > 0)
443 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
448 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
450 *(bus_addr_t *)arg = segs[0].ds_addr;
454 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
461 ring->cur = ring->next = 0;
462 ring->cur_encrypt = ring->next_encrypt = 0;
464 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
465 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
466 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
467 0, NULL, NULL, &ring->desc_dmat);
469 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
473 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
474 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
476 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
480 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
481 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
484 device_printf(sc->sc_dev, "could not load desc DMA map\n");
488 ring->data = malloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
490 if (ring->data == NULL) {
491 device_printf(sc->sc_dev, "could not allocate soft data\n");
496 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
497 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
498 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, NULL, NULL,
501 device_printf(sc->sc_dev, "could not create data DMA tag\n");
505 for (i = 0; i < count; i++) {
506 error = bus_dmamap_create(ring->data_dmat, 0,
509 device_printf(sc->sc_dev, "could not create DMA map\n");
516 fail: rt2560_free_tx_ring(sc, ring);
521 rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
523 struct rt2560_tx_desc *desc;
524 struct rt2560_tx_data *data;
527 for (i = 0; i < ring->count; i++) {
528 desc = &ring->desc[i];
529 data = &ring->data[i];
531 if (data->m != NULL) {
532 bus_dmamap_sync(ring->data_dmat, data->map,
533 BUS_DMASYNC_POSTWRITE);
534 bus_dmamap_unload(ring->data_dmat, data->map);
539 if (data->ni != NULL) {
540 ieee80211_free_node(data->ni);
547 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
550 ring->cur = ring->next = 0;
551 ring->cur_encrypt = ring->next_encrypt = 0;
555 rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
557 struct rt2560_tx_data *data;
560 if (ring->desc != NULL) {
561 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
562 BUS_DMASYNC_POSTWRITE);
563 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
564 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
567 if (ring->desc_dmat != NULL)
568 bus_dma_tag_destroy(ring->desc_dmat);
570 if (ring->data != NULL) {
571 for (i = 0; i < ring->count; i++) {
572 data = &ring->data[i];
574 if (data->m != NULL) {
575 bus_dmamap_sync(ring->data_dmat, data->map,
576 BUS_DMASYNC_POSTWRITE);
577 bus_dmamap_unload(ring->data_dmat, data->map);
581 if (data->ni != NULL)
582 ieee80211_free_node(data->ni);
584 if (data->map != NULL)
585 bus_dmamap_destroy(ring->data_dmat, data->map);
588 free(ring->data, M_DEVBUF);
591 if (ring->data_dmat != NULL)
592 bus_dma_tag_destroy(ring->data_dmat);
596 rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
599 struct rt2560_rx_desc *desc;
600 struct rt2560_rx_data *data;
605 ring->cur = ring->next = 0;
606 ring->cur_decrypt = 0;
608 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
609 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
610 count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
611 0, NULL, NULL, &ring->desc_dmat);
613 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
617 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
618 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
620 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
624 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
625 count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
628 device_printf(sc->sc_dev, "could not load desc DMA map\n");
632 ring->data = malloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
634 if (ring->data == NULL) {
635 device_printf(sc->sc_dev, "could not allocate soft data\n");
641 * Pre-allocate Rx buffers and populate Rx ring.
643 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
644 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
645 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
647 device_printf(sc->sc_dev, "could not create data DMA tag\n");
651 for (i = 0; i < count; i++) {
652 desc = &sc->rxq.desc[i];
653 data = &sc->rxq.data[i];
655 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
657 device_printf(sc->sc_dev, "could not create DMA map\n");
661 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
662 if (data->m == NULL) {
663 device_printf(sc->sc_dev,
664 "could not allocate rx mbuf\n");
669 error = bus_dmamap_load(ring->data_dmat, data->map,
670 mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
673 device_printf(sc->sc_dev,
674 "could not load rx buf DMA map");
678 desc->flags = htole32(RT2560_RX_BUSY);
679 desc->physaddr = htole32(physaddr);
682 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
686 fail: rt2560_free_rx_ring(sc, ring);
691 rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
695 for (i = 0; i < ring->count; i++) {
696 ring->desc[i].flags = htole32(RT2560_RX_BUSY);
697 ring->data[i].drop = 0;
700 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
702 ring->cur = ring->next = 0;
703 ring->cur_decrypt = 0;
707 rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
709 struct rt2560_rx_data *data;
712 if (ring->desc != NULL) {
713 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
714 BUS_DMASYNC_POSTWRITE);
715 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
716 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
719 if (ring->desc_dmat != NULL)
720 bus_dma_tag_destroy(ring->desc_dmat);
722 if (ring->data != NULL) {
723 for (i = 0; i < ring->count; i++) {
724 data = &ring->data[i];
726 if (data->m != NULL) {
727 bus_dmamap_sync(ring->data_dmat, data->map,
728 BUS_DMASYNC_POSTREAD);
729 bus_dmamap_unload(ring->data_dmat, data->map);
733 if (data->map != NULL)
734 bus_dmamap_destroy(ring->data_dmat, data->map);
737 free(ring->data, M_DEVBUF);
740 if (ring->data_dmat != NULL)
741 bus_dma_tag_destroy(ring->data_dmat);
745 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
747 struct rt2560_vap *rvp = RT2560_VAP(vap);
748 struct rt2560_softc *sc = vap->iv_ic->ic_softc;
751 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
752 /* abort TSF synchronization */
753 RAL_WRITE(sc, RT2560_CSR14, 0);
755 /* turn association led off */
756 rt2560_update_led(sc, 0, 0);
759 error = rvp->ral_newstate(vap, nstate, arg);
761 if (error == 0 && nstate == IEEE80211_S_RUN) {
762 struct ieee80211_node *ni = vap->iv_bss;
765 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
766 rt2560_update_plcp(sc);
767 rt2560_set_basicrates(sc, &ni->ni_rates);
768 rt2560_set_bssid(sc, ni->ni_bssid);
771 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
772 vap->iv_opmode == IEEE80211_M_IBSS ||
773 vap->iv_opmode == IEEE80211_M_MBSS) {
774 m = ieee80211_beacon_alloc(ni);
776 device_printf(sc->sc_dev,
777 "could not allocate beacon\n");
780 ieee80211_ref_node(ni);
781 error = rt2560_tx_bcn(sc, m, ni);
786 /* turn association led on */
787 rt2560_update_led(sc, 1, 0);
789 if (vap->iv_opmode != IEEE80211_M_MONITOR)
790 rt2560_enable_tsf_sync(sc);
792 rt2560_enable_tsf(sc);
798 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
802 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
808 /* clock C once before the first command */
809 RT2560_EEPROM_CTL(sc, 0);
811 RT2560_EEPROM_CTL(sc, RT2560_S);
812 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
813 RT2560_EEPROM_CTL(sc, RT2560_S);
815 /* write start bit (1) */
816 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
817 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
819 /* write READ opcode (10) */
820 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
821 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
822 RT2560_EEPROM_CTL(sc, RT2560_S);
823 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
825 /* write address (A5-A0 or A7-A0) */
826 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
827 for (; n >= 0; n--) {
828 RT2560_EEPROM_CTL(sc, RT2560_S |
829 (((addr >> n) & 1) << RT2560_SHIFT_D));
830 RT2560_EEPROM_CTL(sc, RT2560_S |
831 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
834 RT2560_EEPROM_CTL(sc, RT2560_S);
836 /* read data Q15-Q0 */
838 for (n = 15; n >= 0; n--) {
839 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
840 tmp = RAL_READ(sc, RT2560_CSR21);
841 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
842 RT2560_EEPROM_CTL(sc, RT2560_S);
845 RT2560_EEPROM_CTL(sc, 0);
847 /* clear Chip Select and clock C */
848 RT2560_EEPROM_CTL(sc, RT2560_S);
849 RT2560_EEPROM_CTL(sc, 0);
850 RT2560_EEPROM_CTL(sc, RT2560_C);
856 * Some frames were processed by the hardware cipher engine and are ready for
860 rt2560_encryption_intr(struct rt2560_softc *sc)
862 struct rt2560_tx_desc *desc;
865 /* retrieve last descriptor index processed by cipher engine */
866 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
867 hw /= RT2560_TX_DESC_SIZE;
869 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
870 BUS_DMASYNC_POSTREAD);
872 while (sc->txq.next_encrypt != hw) {
873 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
874 printf("hw encrypt %d, cur_encrypt %d\n", hw,
875 sc->txq.cur_encrypt);
879 desc = &sc->txq.desc[sc->txq.next_encrypt];
881 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
882 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
885 /* for TKIP, swap eiv field to fix a bug in ASIC */
886 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
887 RT2560_TX_CIPHER_TKIP)
888 desc->eiv = bswap32(desc->eiv);
890 /* mark the frame ready for transmission */
891 desc->flags |= htole32(RT2560_TX_VALID);
892 desc->flags |= htole32(RT2560_TX_BUSY);
894 DPRINTFN(sc, 15, "encryption done idx=%u\n",
895 sc->txq.next_encrypt);
897 sc->txq.next_encrypt =
898 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
901 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
902 BUS_DMASYNC_PREWRITE);
905 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
909 rt2560_tx_intr(struct rt2560_softc *sc)
911 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs;
912 struct rt2560_tx_desc *desc;
913 struct rt2560_tx_data *data;
915 struct ieee80211_node *ni;
919 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
920 BUS_DMASYNC_POSTREAD);
922 txs->flags = IEEE80211_RATECTL_STATUS_LONG_RETRY;
924 desc = &sc->txq.desc[sc->txq.next];
925 data = &sc->txq.data[sc->txq.next];
927 flags = le32toh(desc->flags);
928 if ((flags & RT2560_TX_BUSY) ||
929 (flags & RT2560_TX_CIPHER_BUSY) ||
930 !(flags & RT2560_TX_VALID))
936 switch (flags & RT2560_TX_RESULT_MASK) {
937 case RT2560_TX_SUCCESS:
938 txs->status = IEEE80211_RATECTL_TX_SUCCESS;
939 txs->long_retries = 0;
941 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
942 if (data->rix != IEEE80211_FIXED_RATE_NONE)
943 ieee80211_ratectl_tx_complete(ni, txs);
947 case RT2560_TX_SUCCESS_RETRY:
948 txs->status = IEEE80211_RATECTL_TX_SUCCESS;
949 txs->long_retries = RT2560_TX_RETRYCNT(flags);
951 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
953 if (data->rix != IEEE80211_FIXED_RATE_NONE)
954 ieee80211_ratectl_tx_complete(ni, txs);
958 case RT2560_TX_FAIL_RETRY:
959 txs->status = IEEE80211_RATECTL_TX_FAIL_LONG;
960 txs->long_retries = RT2560_TX_RETRYCNT(flags);
962 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
964 if (data->rix != IEEE80211_FIXED_RATE_NONE)
965 ieee80211_ratectl_tx_complete(ni, txs);
969 case RT2560_TX_FAIL_INVALID:
970 case RT2560_TX_FAIL_OTHER:
972 device_printf(sc->sc_dev, "sending data frame failed "
977 bus_dmamap_sync(sc->txq.data_dmat, data->map,
978 BUS_DMASYNC_POSTWRITE);
979 bus_dmamap_unload(sc->txq.data_dmat, data->map);
981 ieee80211_tx_complete(ni, m, status);
985 /* descriptor is no longer valid */
986 desc->flags &= ~htole32(RT2560_TX_VALID);
988 DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
991 sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
994 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
995 BUS_DMASYNC_PREWRITE);
997 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1000 if (sc->txq.queued < RT2560_TX_RING_COUNT - 1)
1005 rt2560_prio_intr(struct rt2560_softc *sc)
1007 struct rt2560_tx_desc *desc;
1008 struct rt2560_tx_data *data;
1009 struct ieee80211_node *ni;
1013 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1014 BUS_DMASYNC_POSTREAD);
1017 desc = &sc->prioq.desc[sc->prioq.next];
1018 data = &sc->prioq.data[sc->prioq.next];
1020 flags = le32toh(desc->flags);
1021 if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
1024 switch (flags & RT2560_TX_RESULT_MASK) {
1025 case RT2560_TX_SUCCESS:
1026 DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
1029 case RT2560_TX_SUCCESS_RETRY:
1030 DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
1031 (flags >> 5) & 0x7);
1034 case RT2560_TX_FAIL_RETRY:
1035 DPRINTFN(sc, 9, "%s\n",
1036 "sending mgt frame failed (too much retries)");
1039 case RT2560_TX_FAIL_INVALID:
1040 case RT2560_TX_FAIL_OTHER:
1042 device_printf(sc->sc_dev, "sending mgt frame failed "
1047 bus_dmamap_sync(sc->prioq.data_dmat, data->map,
1048 BUS_DMASYNC_POSTWRITE);
1049 bus_dmamap_unload(sc->prioq.data_dmat, data->map);
1056 /* descriptor is no longer valid */
1057 desc->flags &= ~htole32(RT2560_TX_VALID);
1059 DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
1062 sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
1064 if (m->m_flags & M_TXCB)
1065 ieee80211_process_callback(ni, m,
1066 (flags & RT2560_TX_RESULT_MASK) &~
1067 (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
1069 ieee80211_free_node(ni);
1072 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1073 BUS_DMASYNC_PREWRITE);
1075 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1076 sc->sc_tx_timer = 0;
1078 if (sc->prioq.queued < RT2560_PRIO_RING_COUNT)
1083 * Some frames were processed by the hardware cipher engine and are ready for
1084 * handoff to the IEEE802.11 layer.
1087 rt2560_decryption_intr(struct rt2560_softc *sc)
1089 struct ieee80211com *ic = &sc->sc_ic;
1090 struct rt2560_rx_desc *desc;
1091 struct rt2560_rx_data *data;
1092 bus_addr_t physaddr;
1093 struct ieee80211_frame *wh;
1094 struct ieee80211_node *ni;
1095 struct mbuf *mnew, *m;
1099 /* retrieve last descriptor index processed by cipher engine */
1100 hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
1101 hw /= RT2560_RX_DESC_SIZE;
1103 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1104 BUS_DMASYNC_POSTREAD);
1106 for (; sc->rxq.cur_decrypt != hw;) {
1107 desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
1108 data = &sc->rxq.data[sc->rxq.cur_decrypt];
1110 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1111 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1115 counter_u64_add(ic->ic_ierrors, 1);
1119 if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
1120 (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) {
1121 counter_u64_add(ic->ic_ierrors, 1);
1126 * Try to allocate a new mbuf for this ring element and load it
1127 * before processing the current mbuf. If the ring element
1128 * cannot be loaded, drop the received packet and reuse the old
1129 * mbuf. In the unlikely case that the old mbuf can't be
1130 * reloaded either, explicitly panic.
1132 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1134 counter_u64_add(ic->ic_ierrors, 1);
1138 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1139 BUS_DMASYNC_POSTREAD);
1140 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1142 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1143 mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
1148 /* try to reload the old mbuf */
1149 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1150 mtod(data->m, void *), MCLBYTES,
1151 rt2560_dma_map_addr, &physaddr, 0);
1153 /* very unlikely that it will fail... */
1154 panic("%s: could not load old rx mbuf",
1155 device_get_name(sc->sc_dev));
1157 counter_u64_add(ic->ic_ierrors, 1);
1162 * New mbuf successfully loaded, update Rx ring and continue
1167 desc->physaddr = htole32(physaddr);
1170 m->m_pkthdr.len = m->m_len =
1171 (le32toh(desc->flags) >> 16) & 0xfff;
1173 rssi = RT2560_RSSI(sc, desc->rssi);
1174 nf = RT2560_NOISE_FLOOR;
1175 if (ieee80211_radiotap_active(ic)) {
1176 struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
1177 uint32_t tsf_lo, tsf_hi;
1179 /* get timestamp (low and high 32 bits) */
1180 tsf_hi = RAL_READ(sc, RT2560_CSR17);
1181 tsf_lo = RAL_READ(sc, RT2560_CSR16);
1184 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1186 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1187 (desc->flags & htole32(RT2560_RX_OFDM)) ?
1188 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1189 tap->wr_antenna = sc->rx_ant;
1190 tap->wr_antsignal = nf + rssi;
1191 tap->wr_antnoise = nf;
1194 sc->sc_flags |= RT2560_F_INPUT_RUNNING;
1196 wh = mtod(m, struct ieee80211_frame *);
1197 ni = ieee80211_find_rxnode(ic,
1198 (struct ieee80211_frame_min *)wh);
1200 (void) ieee80211_input(ni, m, rssi, nf);
1201 ieee80211_free_node(ni);
1203 (void) ieee80211_input_all(ic, m, rssi, nf);
1206 sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
1207 skip: desc->flags = htole32(RT2560_RX_BUSY);
1209 DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
1211 sc->rxq.cur_decrypt =
1212 (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
1215 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1216 BUS_DMASYNC_PREWRITE);
1220 * Some frames were received. Pass them to the hardware cipher engine before
1221 * sending them to the 802.11 layer.
1224 rt2560_rx_intr(struct rt2560_softc *sc)
1226 struct rt2560_rx_desc *desc;
1227 struct rt2560_rx_data *data;
1229 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1230 BUS_DMASYNC_POSTREAD);
1233 desc = &sc->rxq.desc[sc->rxq.cur];
1234 data = &sc->rxq.data[sc->rxq.cur];
1236 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1237 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1242 if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
1243 (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
1245 * This should not happen since we did not request
1246 * to receive those frames when we filled RXCSR0.
1248 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1249 le32toh(desc->flags));
1253 if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
1254 DPRINTFN(sc, 5, "%s\n", "bad length");
1258 /* mark the frame for decryption */
1259 desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
1261 DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
1263 sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
1266 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1267 BUS_DMASYNC_PREWRITE);
1270 RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
1274 rt2560_beacon_update(struct ieee80211vap *vap, int item)
1276 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
1278 setbit(bo->bo_flags, item);
1282 * This function is called periodically in IBSS mode when a new beacon must be
1286 rt2560_beacon_expire(struct rt2560_softc *sc)
1288 struct ieee80211com *ic = &sc->sc_ic;
1289 struct rt2560_tx_data *data;
1291 if (ic->ic_opmode != IEEE80211_M_IBSS &&
1292 ic->ic_opmode != IEEE80211_M_HOSTAP &&
1293 ic->ic_opmode != IEEE80211_M_MBSS)
1296 data = &sc->bcnq.data[sc->bcnq.next];
1298 * Don't send beacon if bsschan isn't set
1300 if (data->ni == NULL)
1303 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1304 bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
1306 /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
1307 ieee80211_beacon_update(data->ni, data->m, 1);
1309 rt2560_tx_bcn(sc, data->m, data->ni);
1311 DPRINTFN(sc, 15, "%s", "beacon expired\n");
1313 sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
1318 rt2560_wakeup_expire(struct rt2560_softc *sc)
1320 DPRINTFN(sc, 2, "%s", "wakeup expired\n");
1324 rt2560_intr(void *arg)
1326 struct rt2560_softc *sc = arg;
1331 /* disable interrupts */
1332 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
1334 /* don't re-enable interrupts if we're shutting down */
1335 if (!(sc->sc_flags & RT2560_F_RUNNING)) {
1340 r = RAL_READ(sc, RT2560_CSR7);
1341 RAL_WRITE(sc, RT2560_CSR7, r);
1343 if (r & RT2560_BEACON_EXPIRE)
1344 rt2560_beacon_expire(sc);
1346 if (r & RT2560_WAKEUP_EXPIRE)
1347 rt2560_wakeup_expire(sc);
1349 if (r & RT2560_ENCRYPTION_DONE)
1350 rt2560_encryption_intr(sc);
1352 if (r & RT2560_TX_DONE)
1355 if (r & RT2560_PRIO_DONE)
1356 rt2560_prio_intr(sc);
1358 if (r & RT2560_DECRYPTION_DONE)
1359 rt2560_decryption_intr(sc);
1361 if (r & RT2560_RX_DONE) {
1363 rt2560_encryption_intr(sc);
1366 /* re-enable interrupts */
1367 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
1372 #define RAL_SIFS 10 /* us */
1374 #define RT2560_TXRX_TURNAROUND 10 /* us */
1377 rt2560_plcp_signal(int rate)
1380 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1381 case 12: return 0xb;
1382 case 18: return 0xf;
1383 case 24: return 0xa;
1384 case 36: return 0xe;
1385 case 48: return 0x9;
1386 case 72: return 0xd;
1387 case 96: return 0x8;
1388 case 108: return 0xc;
1390 /* CCK rates (NB: not IEEE std, device-specific) */
1393 case 11: return 0x2;
1394 case 22: return 0x3;
1396 return 0xff; /* XXX unsupported/unknown rate */
1400 rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
1401 uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
1403 struct ieee80211com *ic = &sc->sc_ic;
1404 uint16_t plcp_length;
1407 desc->flags = htole32(flags);
1408 desc->flags |= htole32(len << 16);
1410 desc->physaddr = htole32(physaddr);
1411 desc->wme = htole16(
1413 RT2560_LOGCWMIN(3) |
1414 RT2560_LOGCWMAX(8));
1416 /* setup PLCP fields */
1417 desc->plcp_signal = rt2560_plcp_signal(rate);
1418 desc->plcp_service = 4;
1420 len += IEEE80211_CRC_LEN;
1421 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1422 desc->flags |= htole32(RT2560_TX_OFDM);
1424 plcp_length = len & 0xfff;
1425 desc->plcp_length_hi = plcp_length >> 6;
1426 desc->plcp_length_lo = plcp_length & 0x3f;
1428 plcp_length = howmany(16 * len, rate);
1430 remainder = (16 * len) % 22;
1431 if (remainder != 0 && remainder < 7)
1432 desc->plcp_service |= RT2560_PLCP_LENGEXT;
1434 desc->plcp_length_hi = plcp_length >> 8;
1435 desc->plcp_length_lo = plcp_length & 0xff;
1437 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1438 desc->plcp_signal |= 0x08;
1442 desc->flags |= htole32(RT2560_TX_VALID);
1443 desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
1444 : htole32(RT2560_TX_BUSY);
1448 rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
1449 struct ieee80211_node *ni)
1451 struct ieee80211vap *vap = ni->ni_vap;
1452 struct rt2560_tx_desc *desc;
1453 struct rt2560_tx_data *data;
1454 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1455 int nsegs, rate, error;
1457 desc = &sc->bcnq.desc[sc->bcnq.cur];
1458 data = &sc->bcnq.data[sc->bcnq.cur];
1460 /* XXX maybe a separate beacon rate? */
1461 rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
1463 error = bus_dmamap_load_mbuf_sg(sc->bcnq.data_dmat, data->map, m0,
1464 segs, &nsegs, BUS_DMA_NOWAIT);
1466 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1472 if (ieee80211_radiotap_active_vap(vap)) {
1473 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1476 tap->wt_rate = rate;
1477 tap->wt_antenna = sc->tx_ant;
1479 ieee80211_radiotap_tx(vap, m0);
1485 rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
1486 RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr);
1488 DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
1489 m0->m_pkthdr.len, sc->bcnq.cur, rate);
1491 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1492 bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
1493 BUS_DMASYNC_PREWRITE);
1495 sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
1501 rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
1502 struct ieee80211_node *ni)
1504 struct ieee80211vap *vap = ni->ni_vap;
1505 struct ieee80211com *ic = ni->ni_ic;
1506 struct rt2560_tx_desc *desc;
1507 struct rt2560_tx_data *data;
1508 struct ieee80211_frame *wh;
1509 struct ieee80211_key *k;
1510 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1513 int nsegs, rate, error;
1515 desc = &sc->prioq.desc[sc->prioq.cur];
1516 data = &sc->prioq.data[sc->prioq.cur];
1518 rate = ni->ni_txparms->mgmtrate;
1520 wh = mtod(m0, struct ieee80211_frame *);
1522 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1523 k = ieee80211_crypto_encap(ni, m0);
1530 error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
1533 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1539 if (ieee80211_radiotap_active_vap(vap)) {
1540 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1543 tap->wt_rate = rate;
1544 tap->wt_antenna = sc->tx_ant;
1546 ieee80211_radiotap_tx(vap, m0);
1551 /* management frames are not taken into account for amrr */
1552 data->rix = IEEE80211_FIXED_RATE_NONE;
1554 wh = mtod(m0, struct ieee80211_frame *);
1556 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1557 flags |= RT2560_TX_ACK;
1559 dur = ieee80211_ack_duration(ic->ic_rt,
1560 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1561 *(uint16_t *)wh->i_dur = htole16(dur);
1563 /* tell hardware to add timestamp for probe responses */
1564 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1565 IEEE80211_FC0_TYPE_MGT &&
1566 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1567 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1568 flags |= RT2560_TX_TIMESTAMP;
1571 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
1574 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1575 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1576 BUS_DMASYNC_PREWRITE);
1578 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1579 m0->m_pkthdr.len, sc->prioq.cur, rate);
1583 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1584 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1590 rt2560_sendprot(struct rt2560_softc *sc,
1591 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1593 struct ieee80211com *ic = ni->ni_ic;
1594 struct rt2560_tx_desc *desc;
1595 struct rt2560_tx_data *data;
1597 int protrate, flags, error;
1598 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1601 mprot = ieee80211_alloc_prot(ni, m, rate, prot);
1602 if (mprot == NULL) {
1603 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
1604 device_printf(sc->sc_dev,
1605 "could not allocate mbuf for protection mode %d\n", prot);
1609 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1610 data = &sc->txq.data[sc->txq.cur_encrypt];
1612 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1613 mprot, segs, &nsegs, 0);
1615 device_printf(sc->sc_dev,
1616 "could not map mbuf (error %d)\n", error);
1622 data->ni = ieee80211_ref_node(ni);
1623 /* ctl frames are not taken into account for amrr */
1624 data->rix = IEEE80211_FIXED_RATE_NONE;
1626 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1627 flags = RT2560_TX_MORE_FRAG;
1628 if (prot == IEEE80211_PROT_RTSCTS)
1629 flags |= RT2560_TX_ACK;
1631 rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
1634 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1635 BUS_DMASYNC_PREWRITE);
1638 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1644 rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
1645 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
1647 struct ieee80211vap *vap = ni->ni_vap;
1648 struct ieee80211com *ic = ni->ni_ic;
1649 struct rt2560_tx_desc *desc;
1650 struct rt2560_tx_data *data;
1651 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1653 int nsegs, rate, error;
1655 desc = &sc->prioq.desc[sc->prioq.cur];
1656 data = &sc->prioq.data[sc->prioq.cur];
1658 rate = params->ibp_rate0;
1659 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1660 /* XXX fall back to mcast/mgmt rate? */
1666 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1667 flags |= RT2560_TX_ACK;
1668 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1669 error = rt2560_sendprot(sc, m0, ni,
1670 params->ibp_flags & IEEE80211_BPF_RTS ?
1671 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1677 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1680 error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
1683 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1689 if (ieee80211_radiotap_active_vap(vap)) {
1690 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1693 tap->wt_rate = rate;
1694 tap->wt_antenna = sc->tx_ant;
1696 ieee80211_radiotap_tx(ni->ni_vap, m0);
1702 /* XXX need to setup descriptor ourself */
1703 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
1704 rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
1707 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1708 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1709 BUS_DMASYNC_PREWRITE);
1711 DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n",
1712 m0->m_pkthdr.len, sc->prioq.cur, rate);
1716 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1717 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1723 rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
1724 struct ieee80211_node *ni)
1726 struct ieee80211vap *vap = ni->ni_vap;
1727 struct ieee80211com *ic = ni->ni_ic;
1728 struct rt2560_tx_desc *desc;
1729 struct rt2560_tx_data *data;
1730 struct ieee80211_frame *wh;
1731 const struct ieee80211_txparam *tp = ni->ni_txparms;
1732 struct ieee80211_key *k;
1734 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1737 int nsegs, rate, error;
1739 wh = mtod(m0, struct ieee80211_frame *);
1741 if (m0->m_flags & M_EAPOL) {
1742 rate = tp->mgmtrate;
1743 } else if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1744 rate = tp->mcastrate;
1745 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1746 rate = tp->ucastrate;
1748 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1749 rate = ni->ni_txrate;
1752 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1753 k = ieee80211_crypto_encap(ni, m0);
1759 /* packet header may have moved, reset our local pointer */
1760 wh = mtod(m0, struct ieee80211_frame *);
1764 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1765 int prot = IEEE80211_PROT_NONE;
1766 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1767 prot = IEEE80211_PROT_RTSCTS;
1768 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1769 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1770 prot = ic->ic_protmode;
1771 if (prot != IEEE80211_PROT_NONE) {
1772 error = rt2560_sendprot(sc, m0, ni, prot, rate);
1777 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1781 data = &sc->txq.data[sc->txq.cur_encrypt];
1782 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1784 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, m0,
1786 if (error != 0 && error != EFBIG) {
1787 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1793 mnew = m_defrag(m0, M_NOWAIT);
1795 device_printf(sc->sc_dev,
1796 "could not defragment mbuf\n");
1802 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1803 m0, segs, &nsegs, 0);
1805 device_printf(sc->sc_dev,
1806 "could not map mbuf (error %d)\n", error);
1811 /* packet header may have moved, reset our local pointer */
1812 wh = mtod(m0, struct ieee80211_frame *);
1815 if (ieee80211_radiotap_active_vap(vap)) {
1816 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1819 tap->wt_rate = rate;
1820 tap->wt_antenna = sc->tx_ant;
1822 ieee80211_radiotap_tx(vap, m0);
1828 /* remember link conditions for rate adaptation algorithm */
1829 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1830 data->rix = ni->ni_txrate;
1831 /* XXX probably need last rssi value and not avg */
1832 data->rssi = ic->ic_node_getrssi(ni);
1834 data->rix = IEEE80211_FIXED_RATE_NONE;
1836 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1837 flags |= RT2560_TX_ACK;
1839 dur = ieee80211_ack_duration(ic->ic_rt,
1840 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1841 *(uint16_t *)wh->i_dur = htole16(dur);
1844 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
1847 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1848 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1849 BUS_DMASYNC_PREWRITE);
1851 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1852 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
1856 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1857 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
1863 rt2560_transmit(struct ieee80211com *ic, struct mbuf *m)
1865 struct rt2560_softc *sc = ic->ic_softc;
1869 if ((sc->sc_flags & RT2560_F_RUNNING) == 0) {
1873 error = mbufq_enqueue(&sc->sc_snd, m);
1885 rt2560_start(struct rt2560_softc *sc)
1887 struct ieee80211_node *ni;
1890 RAL_LOCK_ASSERT(sc);
1892 while (sc->txq.queued < RT2560_TX_RING_COUNT - 1 &&
1893 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1894 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1895 if (rt2560_tx_data(sc, m, ni) != 0) {
1896 if_inc_counter(ni->ni_vap->iv_ifp,
1897 IFCOUNTER_OERRORS, 1);
1898 ieee80211_free_node(ni);
1901 sc->sc_tx_timer = 5;
1906 rt2560_watchdog(void *arg)
1908 struct rt2560_softc *sc = arg;
1910 RAL_LOCK_ASSERT(sc);
1912 KASSERT(sc->sc_flags & RT2560_F_RUNNING, ("not running"));
1914 if (sc->sc_invalid) /* card ejected */
1917 rt2560_encryption_intr(sc);
1920 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1921 device_printf(sc->sc_dev, "device timeout\n");
1922 rt2560_init_locked(sc);
1923 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1924 /* NB: callout is reset in rt2560_init() */
1927 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
1931 rt2560_parent(struct ieee80211com *ic)
1933 struct rt2560_softc *sc = ic->ic_softc;
1937 if (ic->ic_nrunning > 0) {
1938 if ((sc->sc_flags & RT2560_F_RUNNING) == 0) {
1939 rt2560_init_locked(sc);
1942 rt2560_update_promisc(ic);
1943 } else if (sc->sc_flags & RT2560_F_RUNNING)
1944 rt2560_stop_locked(sc);
1947 ieee80211_start_all(ic);
1951 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
1956 for (ntries = 0; ntries < 100; ntries++) {
1957 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
1961 if (ntries == 100) {
1962 device_printf(sc->sc_dev, "could not write to BBP\n");
1966 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
1967 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
1969 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
1973 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
1978 for (ntries = 0; ntries < 100; ntries++) {
1979 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
1983 if (ntries == 100) {
1984 device_printf(sc->sc_dev, "could not read from BBP\n");
1988 val = RT2560_BBP_BUSY | reg << 8;
1989 RAL_WRITE(sc, RT2560_BBPCSR, val);
1991 for (ntries = 0; ntries < 100; ntries++) {
1992 val = RAL_READ(sc, RT2560_BBPCSR);
1993 if (!(val & RT2560_BBP_BUSY))
1998 device_printf(sc->sc_dev, "could not read from BBP\n");
2003 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2008 for (ntries = 0; ntries < 100; ntries++) {
2009 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2013 if (ntries == 100) {
2014 device_printf(sc->sc_dev, "could not write to RF\n");
2018 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2020 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2022 /* remember last written value in sc */
2023 sc->rf_regs[reg] = val;
2025 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2029 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2031 struct ieee80211com *ic = &sc->sc_ic;
2035 chan = ieee80211_chan2ieee(ic, c);
2036 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2038 if (IEEE80211_IS_CHAN_2GHZ(c))
2039 power = min(sc->txpow[chan - 1], 31);
2043 /* adjust txpower using ifconfig settings */
2044 power -= (100 - ic->ic_txpowlimit) / 8;
2046 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2048 switch (sc->rf_rev) {
2049 case RT2560_RF_2522:
2050 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2051 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2052 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2055 case RT2560_RF_2523:
2056 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2057 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2058 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2059 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2062 case RT2560_RF_2524:
2063 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2064 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2065 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2066 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2069 case RT2560_RF_2525:
2070 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2071 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2072 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2073 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2075 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2076 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2077 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2078 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2081 case RT2560_RF_2525E:
2082 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2083 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2084 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2085 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2088 case RT2560_RF_2526:
2089 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2090 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2091 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2093 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2094 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2095 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2099 case RT2560_RF_5222:
2100 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2102 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2103 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2104 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2105 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2108 printf("unknown ral rev=%d\n", sc->rf_rev);
2112 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2113 /* set Japan filter bit for channel 14 */
2114 tmp = rt2560_bbp_read(sc, 70);
2116 tmp &= ~RT2560_JAPAN_FILTER;
2118 tmp |= RT2560_JAPAN_FILTER;
2120 rt2560_bbp_write(sc, 70, tmp);
2122 /* clear CRC errors */
2123 RAL_READ(sc, RT2560_CNT0);
2128 rt2560_getradiocaps(struct ieee80211com *ic,
2129 int maxchans, int *nchans, struct ieee80211_channel chans[])
2131 struct rt2560_softc *sc = ic->ic_softc;
2132 uint8_t bands[IEEE80211_MODE_BYTES];
2134 memset(bands, 0, sizeof(bands));
2135 setbit(bands, IEEE80211_MODE_11B);
2136 setbit(bands, IEEE80211_MODE_11G);
2137 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
2139 if (sc->rf_rev == RT2560_RF_5222) {
2140 setbit(bands, IEEE80211_MODE_11A);
2141 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
2142 rt2560_chan_5ghz, nitems(rt2560_chan_5ghz), bands, 0);
2147 rt2560_set_channel(struct ieee80211com *ic)
2149 struct rt2560_softc *sc = ic->ic_softc;
2152 rt2560_set_chan(sc, ic->ic_curchan);
2159 * Disable RF auto-tuning.
2162 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2166 if (sc->rf_rev != RT2560_RF_2523) {
2167 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2168 rt2560_rf_write(sc, RAL_RF1, tmp);
2171 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2172 rt2560_rf_write(sc, RAL_RF3, tmp);
2174 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2179 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2183 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2185 struct ieee80211com *ic = &sc->sc_ic;
2186 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2187 uint16_t logcwmin, preload;
2190 /* first, disable TSF synchronization */
2191 RAL_WRITE(sc, RT2560_CSR14, 0);
2193 tmp = 16 * vap->iv_bss->ni_intval;
2194 RAL_WRITE(sc, RT2560_CSR12, tmp);
2196 RAL_WRITE(sc, RT2560_CSR13, 0);
2199 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2200 tmp = logcwmin << 16 | preload;
2201 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2203 /* finally, enable TSF synchronization */
2204 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2205 if (ic->ic_opmode == IEEE80211_M_STA)
2206 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2208 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2209 RT2560_ENABLE_BEACON_GENERATOR;
2210 RAL_WRITE(sc, RT2560_CSR14, tmp);
2212 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2216 rt2560_enable_tsf(struct rt2560_softc *sc)
2218 RAL_WRITE(sc, RT2560_CSR14, 0);
2219 RAL_WRITE(sc, RT2560_CSR14,
2220 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
2224 rt2560_update_plcp(struct rt2560_softc *sc)
2226 struct ieee80211com *ic = &sc->sc_ic;
2228 /* no short preamble for 1Mbps */
2229 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2231 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2232 /* values taken from the reference driver */
2233 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2234 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2235 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2237 /* same values as above or'ed 0x8 */
2238 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2239 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2240 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2243 DPRINTF(sc, "updating PLCP for %s preamble\n",
2244 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2248 * This function can be called by ieee80211_set_shortslottime(). Refer to
2249 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2252 rt2560_update_slot(struct ieee80211com *ic)
2254 struct rt2560_softc *sc = ic->ic_softc;
2256 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2259 #ifndef FORCE_SLOTTIME
2260 slottime = IEEE80211_GET_SLOTTIME(ic);
2263 * Setting slot time according to "short slot time" capability
2264 * in beacon/probe_resp seems to cause problem to acknowledge
2265 * certain AP's data frames transimitted at CCK/DS rates: the
2266 * problematic AP keeps retransmitting data frames, probably
2267 * because MAC level acks are not received by hardware.
2268 * So we cheat a little bit here by claiming we are capable of
2269 * "short slot time" but setting hardware slot time to the normal
2270 * slot time. ral(4) does not seem to have trouble to receive
2271 * frames transmitted using short slot time even if hardware
2272 * slot time is set to normal slot time. If we didn't use this
2273 * trick, we would have to claim that short slot time is not
2274 * supported; this would give relative poor RX performance
2275 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2278 slottime = IEEE80211_DUR_SLOT;
2281 /* update the MAC slot boundaries */
2282 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2283 tx_pifs = tx_sifs + slottime;
2284 tx_difs = IEEE80211_DUR_DIFS(tx_sifs, slottime);
2285 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2287 tmp = RAL_READ(sc, RT2560_CSR11);
2288 tmp = (tmp & ~0x1f00) | slottime << 8;
2289 RAL_WRITE(sc, RT2560_CSR11, tmp);
2291 tmp = tx_pifs << 16 | tx_sifs;
2292 RAL_WRITE(sc, RT2560_CSR18, tmp);
2294 tmp = eifs << 16 | tx_difs;
2295 RAL_WRITE(sc, RT2560_CSR19, tmp);
2297 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2301 rt2560_set_basicrates(struct rt2560_softc *sc,
2302 const struct ieee80211_rateset *rs)
2304 struct ieee80211com *ic = &sc->sc_ic;
2309 for (i = 0; i < rs->rs_nrates; i++) {
2310 rate = rs->rs_rates[i];
2312 if (!(rate & IEEE80211_RATE_BASIC))
2315 mask |= 1 << ieee80211_legacy_rate_lookup(ic->ic_rt,
2316 IEEE80211_RV(rate));
2319 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, mask);
2321 DPRINTF(sc, "Setting basic rate mask to 0x%x\n", mask);
2325 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2329 /* set ON period to 70ms and OFF period to 30ms */
2330 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2331 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2335 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2339 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2340 RAL_WRITE(sc, RT2560_CSR5, tmp);
2342 tmp = bssid[4] | bssid[5] << 8;
2343 RAL_WRITE(sc, RT2560_CSR6, tmp);
2345 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":");
2349 rt2560_set_macaddr(struct rt2560_softc *sc, const uint8_t *addr)
2353 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2354 RAL_WRITE(sc, RT2560_CSR3, tmp);
2356 tmp = addr[4] | addr[5] << 8;
2357 RAL_WRITE(sc, RT2560_CSR4, tmp);
2359 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":");
2363 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2367 tmp = RAL_READ(sc, RT2560_CSR3);
2368 addr[0] = tmp & 0xff;
2369 addr[1] = (tmp >> 8) & 0xff;
2370 addr[2] = (tmp >> 16) & 0xff;
2371 addr[3] = (tmp >> 24);
2373 tmp = RAL_READ(sc, RT2560_CSR4);
2374 addr[4] = tmp & 0xff;
2375 addr[5] = (tmp >> 8) & 0xff;
2379 rt2560_update_promisc(struct ieee80211com *ic)
2381 struct rt2560_softc *sc = ic->ic_softc;
2384 tmp = RAL_READ(sc, RT2560_RXCSR0);
2386 tmp &= ~RT2560_DROP_NOT_TO_ME;
2387 if (ic->ic_promisc == 0)
2388 tmp |= RT2560_DROP_NOT_TO_ME;
2390 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2392 DPRINTF(sc, "%s promiscuous mode\n",
2393 (ic->ic_promisc > 0) ? "entering" : "leaving");
2397 rt2560_get_rf(int rev)
2400 case RT2560_RF_2522: return "RT2522";
2401 case RT2560_RF_2523: return "RT2523";
2402 case RT2560_RF_2524: return "RT2524";
2403 case RT2560_RF_2525: return "RT2525";
2404 case RT2560_RF_2525E: return "RT2525e";
2405 case RT2560_RF_2526: return "RT2526";
2406 case RT2560_RF_5222: return "RT5222";
2407 default: return "unknown";
2412 rt2560_read_config(struct rt2560_softc *sc)
2417 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2418 sc->rf_rev = (val >> 11) & 0x7;
2419 sc->hw_radio = (val >> 10) & 0x1;
2420 sc->led_mode = (val >> 6) & 0x7;
2421 sc->rx_ant = (val >> 4) & 0x3;
2422 sc->tx_ant = (val >> 2) & 0x3;
2423 sc->nb_ant = val & 0x3;
2425 /* read default values for BBP registers */
2426 for (i = 0; i < 16; i++) {
2427 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2428 if (val == 0 || val == 0xffff)
2431 sc->bbp_prom[i].reg = val >> 8;
2432 sc->bbp_prom[i].val = val & 0xff;
2435 /* read Tx power for all b/g channels */
2436 for (i = 0; i < 14 / 2; i++) {
2437 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2438 sc->txpow[i * 2] = val & 0xff;
2439 sc->txpow[i * 2 + 1] = val >> 8;
2441 for (i = 0; i < 14; ++i) {
2442 if (sc->txpow[i] > 31)
2446 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2447 if ((val & 0xff) == 0xff)
2448 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2450 sc->rssi_corr = val & 0xff;
2451 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2452 sc->rssi_corr, val);
2457 rt2560_scan_start(struct ieee80211com *ic)
2459 struct rt2560_softc *sc = ic->ic_softc;
2461 /* abort TSF synchronization */
2462 RAL_WRITE(sc, RT2560_CSR14, 0);
2463 rt2560_set_bssid(sc, ieee80211broadcastaddr);
2467 rt2560_scan_end(struct ieee80211com *ic)
2469 struct rt2560_softc *sc = ic->ic_softc;
2470 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2472 rt2560_enable_tsf_sync(sc);
2473 /* XXX keep local copy */
2474 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2478 rt2560_bbp_init(struct rt2560_softc *sc)
2482 /* wait for BBP to be ready */
2483 for (ntries = 0; ntries < 100; ntries++) {
2484 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2488 if (ntries == 100) {
2489 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2493 /* initialize BBP registers to default values */
2494 for (i = 0; i < nitems(rt2560_def_bbp); i++) {
2495 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2496 rt2560_def_bbp[i].val);
2499 /* initialize BBP registers to values stored in EEPROM */
2500 for (i = 0; i < 16; i++) {
2501 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2503 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2505 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2511 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2516 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2518 tx |= RT2560_BBP_ANTA;
2519 else if (antenna == 2)
2520 tx |= RT2560_BBP_ANTB;
2522 tx |= RT2560_BBP_DIVERSITY;
2524 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2525 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2526 sc->rf_rev == RT2560_RF_5222)
2527 tx |= RT2560_BBP_FLIPIQ;
2529 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2531 /* update values for CCK and OFDM in BBPCSR1 */
2532 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2533 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2534 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2538 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2542 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2544 rx |= RT2560_BBP_ANTA;
2545 else if (antenna == 2)
2546 rx |= RT2560_BBP_ANTB;
2548 rx |= RT2560_BBP_DIVERSITY;
2550 /* need to force no I/Q flip for RF 2525e and 2526 */
2551 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2552 rx &= ~RT2560_BBP_FLIPIQ;
2554 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2558 rt2560_init_locked(struct rt2560_softc *sc)
2560 struct ieee80211com *ic = &sc->sc_ic;
2561 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2565 RAL_LOCK_ASSERT(sc);
2567 rt2560_stop_locked(sc);
2569 /* setup tx rings */
2570 tmp = RT2560_PRIO_RING_COUNT << 24 |
2571 RT2560_ATIM_RING_COUNT << 16 |
2572 RT2560_TX_RING_COUNT << 8 |
2573 RT2560_TX_DESC_SIZE;
2575 /* rings must be initialized in this exact order */
2576 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2577 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2578 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2579 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2580 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2583 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2585 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2586 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2588 /* initialize MAC registers to default values */
2589 for (i = 0; i < nitems(rt2560_def_mac); i++)
2590 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2592 rt2560_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2594 /* set basic rate set (will be updated later) */
2595 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2597 rt2560_update_slot(ic);
2598 rt2560_update_plcp(sc);
2599 rt2560_update_led(sc, 0, 0);
2601 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2602 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2604 if (rt2560_bbp_init(sc) != 0) {
2605 rt2560_stop_locked(sc);
2609 rt2560_set_txantenna(sc, sc->tx_ant);
2610 rt2560_set_rxantenna(sc, sc->rx_ant);
2612 /* set default BSS channel */
2613 rt2560_set_chan(sc, ic->ic_curchan);
2616 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2617 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2618 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2619 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2620 ic->ic_opmode != IEEE80211_M_MBSS)
2621 tmp |= RT2560_DROP_TODS;
2622 if (ic->ic_promisc == 0)
2623 tmp |= RT2560_DROP_NOT_TO_ME;
2625 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2627 /* clear old FCS and Rx FIFO errors */
2628 RAL_READ(sc, RT2560_CNT0);
2629 RAL_READ(sc, RT2560_CNT4);
2631 /* clear any pending interrupts */
2632 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2634 /* enable interrupts */
2635 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2637 sc->sc_flags |= RT2560_F_RUNNING;
2639 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
2643 rt2560_init(void *priv)
2645 struct rt2560_softc *sc = priv;
2646 struct ieee80211com *ic = &sc->sc_ic;
2649 rt2560_init_locked(sc);
2652 if (sc->sc_flags & RT2560_F_RUNNING)
2653 ieee80211_start_all(ic); /* start all vap's */
2657 rt2560_stop_locked(struct rt2560_softc *sc)
2659 volatile int *flags = &sc->sc_flags;
2661 RAL_LOCK_ASSERT(sc);
2663 while (*flags & RT2560_F_INPUT_RUNNING)
2664 msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10);
2666 callout_stop(&sc->watchdog_ch);
2667 sc->sc_tx_timer = 0;
2669 if (sc->sc_flags & RT2560_F_RUNNING) {
2670 sc->sc_flags &= ~RT2560_F_RUNNING;
2673 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2676 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2678 /* reset ASIC (imply reset BBP) */
2679 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2680 RAL_WRITE(sc, RT2560_CSR1, 0);
2682 /* disable interrupts */
2683 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2685 /* reset Tx and Rx rings */
2686 rt2560_reset_tx_ring(sc, &sc->txq);
2687 rt2560_reset_tx_ring(sc, &sc->atimq);
2688 rt2560_reset_tx_ring(sc, &sc->prioq);
2689 rt2560_reset_tx_ring(sc, &sc->bcnq);
2690 rt2560_reset_rx_ring(sc, &sc->rxq);
2695 rt2560_stop(void *arg)
2697 struct rt2560_softc *sc = arg;
2700 rt2560_stop_locked(sc);
2705 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2706 const struct ieee80211_bpf_params *params)
2708 struct ieee80211com *ic = ni->ni_ic;
2709 struct rt2560_softc *sc = ic->ic_softc;
2713 /* prevent management frames from being sent if we're not ready */
2714 if (!(sc->sc_flags & RT2560_F_RUNNING)) {
2719 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2722 return ENOBUFS; /* XXX */
2725 if (params == NULL) {
2727 * Legacy path; interpret frame contents to decide
2728 * precisely how to send the frame.
2730 if (rt2560_tx_mgt(sc, m, ni) != 0)
2734 * Caller supplied explicit parameters to use in
2735 * sending the frame.
2737 if (rt2560_tx_raw(sc, m, ni, params))
2740 sc->sc_tx_timer = 5;
2747 return EIO; /* XXX */