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_2ghz[] =
193 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
195 static const uint8_t rt2560_chan_5ghz[] =
196 { 36, 40, 44, 48, 52, 56, 60, 64,
197 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
198 149, 153, 157, 161 };
200 static const struct {
203 } rt2560_rf5222[] = {
208 rt2560_attach(device_t dev, int id)
210 struct rt2560_softc *sc = device_get_softc(dev);
211 struct ieee80211com *ic = &sc->sc_ic;
216 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
217 MTX_DEF | MTX_RECURSE);
219 callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0);
220 mbufq_init(&sc->sc_snd, ifqmaxlen);
222 /* retrieve RT2560 rev. no */
223 sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
225 /* retrieve RF rev. no and various other things from EEPROM */
226 rt2560_read_config(sc);
228 device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
229 sc->asic_rev, rt2560_get_rf(sc->rf_rev));
232 * Allocate Tx and Rx rings.
234 error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
236 device_printf(sc->sc_dev, "could not allocate Tx ring\n");
240 error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
242 device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
246 error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
248 device_printf(sc->sc_dev, "could not allocate Prio ring\n");
252 error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
254 device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
258 error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
260 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
264 /* retrieve MAC address */
265 rt2560_get_macaddr(sc, ic->ic_macaddr);
268 ic->ic_name = device_get_nameunit(dev);
269 ic->ic_opmode = IEEE80211_M_STA;
270 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
272 /* set device capabilities */
274 IEEE80211_C_STA /* station mode */
275 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
276 | IEEE80211_C_HOSTAP /* hostap mode */
277 | IEEE80211_C_MONITOR /* monitor mode */
278 | IEEE80211_C_AHDEMO /* adhoc demo mode */
279 | IEEE80211_C_WDS /* 4-address traffic works */
280 | IEEE80211_C_MBSS /* mesh point link mode */
281 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
282 | IEEE80211_C_SHSLOT /* short slot time supported */
283 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
284 | IEEE80211_C_BGSCAN /* capable of bg scanning */
286 | IEEE80211_C_TXFRAG /* handle tx frags */
290 rt2560_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
293 ieee80211_ifattach(ic);
294 ic->ic_raw_xmit = rt2560_raw_xmit;
295 ic->ic_updateslot = rt2560_update_slot;
296 ic->ic_update_promisc = rt2560_update_promisc;
297 ic->ic_scan_start = rt2560_scan_start;
298 ic->ic_scan_end = rt2560_scan_end;
299 ic->ic_getradiocaps = rt2560_getradiocaps;
300 ic->ic_set_channel = rt2560_set_channel;
302 ic->ic_vap_create = rt2560_vap_create;
303 ic->ic_vap_delete = rt2560_vap_delete;
304 ic->ic_parent = rt2560_parent;
305 ic->ic_transmit = rt2560_transmit;
307 ieee80211_radiotap_attach(ic,
308 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
309 RT2560_TX_RADIOTAP_PRESENT,
310 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
311 RT2560_RX_RADIOTAP_PRESENT);
314 * Add a few sysctl knobs.
317 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
318 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
319 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
321 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
322 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
323 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
325 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
326 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
327 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
330 ieee80211_announce(ic);
334 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
335 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
336 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
337 fail2: rt2560_free_tx_ring(sc, &sc->txq);
338 fail1: mtx_destroy(&sc->sc_mtx);
344 rt2560_detach(void *xsc)
346 struct rt2560_softc *sc = xsc;
347 struct ieee80211com *ic = &sc->sc_ic;
351 ieee80211_ifdetach(ic);
352 mbufq_drain(&sc->sc_snd);
354 rt2560_free_tx_ring(sc, &sc->txq);
355 rt2560_free_tx_ring(sc, &sc->atimq);
356 rt2560_free_tx_ring(sc, &sc->prioq);
357 rt2560_free_tx_ring(sc, &sc->bcnq);
358 rt2560_free_rx_ring(sc, &sc->rxq);
360 mtx_destroy(&sc->sc_mtx);
365 static struct ieee80211vap *
366 rt2560_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
367 enum ieee80211_opmode opmode, int flags,
368 const uint8_t bssid[IEEE80211_ADDR_LEN],
369 const uint8_t mac[IEEE80211_ADDR_LEN])
371 struct rt2560_softc *sc = ic->ic_softc;
372 struct rt2560_vap *rvp;
373 struct ieee80211vap *vap;
376 case IEEE80211_M_STA:
377 case IEEE80211_M_IBSS:
378 case IEEE80211_M_AHDEMO:
379 case IEEE80211_M_MONITOR:
380 case IEEE80211_M_HOSTAP:
381 case IEEE80211_M_MBSS:
383 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
384 device_printf(sc->sc_dev, "only 1 vap supported\n");
387 if (opmode == IEEE80211_M_STA)
388 flags |= IEEE80211_CLONE_NOBEACONS;
390 case IEEE80211_M_WDS:
391 if (TAILQ_EMPTY(&ic->ic_vaps) ||
392 ic->ic_opmode != IEEE80211_M_HOSTAP) {
393 device_printf(sc->sc_dev,
394 "wds only supported in ap mode\n");
398 * Silently remove any request for a unique
399 * bssid; WDS vap's always share the local
402 flags &= ~IEEE80211_CLONE_BSSID;
405 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode);
408 rvp = malloc(sizeof(struct rt2560_vap), M_80211_VAP, M_WAITOK | M_ZERO);
410 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
412 /* override state transition machine */
413 rvp->ral_newstate = vap->iv_newstate;
414 vap->iv_newstate = rt2560_newstate;
415 vap->iv_update_beacon = rt2560_beacon_update;
417 ieee80211_ratectl_init(vap);
419 ieee80211_vap_attach(vap, ieee80211_media_change,
420 ieee80211_media_status, mac);
421 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
422 ic->ic_opmode = opmode;
427 rt2560_vap_delete(struct ieee80211vap *vap)
429 struct rt2560_vap *rvp = RT2560_VAP(vap);
431 ieee80211_ratectl_deinit(vap);
432 ieee80211_vap_detach(vap);
433 free(rvp, M_80211_VAP);
437 rt2560_resume(void *xsc)
439 struct rt2560_softc *sc = xsc;
441 if (sc->sc_ic.ic_nrunning > 0)
446 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
451 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
453 *(bus_addr_t *)arg = segs[0].ds_addr;
457 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
464 ring->cur = ring->next = 0;
465 ring->cur_encrypt = ring->next_encrypt = 0;
467 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
468 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
469 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
470 0, NULL, NULL, &ring->desc_dmat);
472 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
476 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
477 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
479 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
483 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
484 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
487 device_printf(sc->sc_dev, "could not load desc DMA map\n");
491 ring->data = malloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
493 if (ring->data == NULL) {
494 device_printf(sc->sc_dev, "could not allocate soft data\n");
499 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
500 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
501 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, NULL, NULL,
504 device_printf(sc->sc_dev, "could not create data DMA tag\n");
508 for (i = 0; i < count; i++) {
509 error = bus_dmamap_create(ring->data_dmat, 0,
512 device_printf(sc->sc_dev, "could not create DMA map\n");
519 fail: rt2560_free_tx_ring(sc, ring);
524 rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
526 struct rt2560_tx_desc *desc;
527 struct rt2560_tx_data *data;
530 for (i = 0; i < ring->count; i++) {
531 desc = &ring->desc[i];
532 data = &ring->data[i];
534 if (data->m != NULL) {
535 bus_dmamap_sync(ring->data_dmat, data->map,
536 BUS_DMASYNC_POSTWRITE);
537 bus_dmamap_unload(ring->data_dmat, data->map);
542 if (data->ni != NULL) {
543 ieee80211_free_node(data->ni);
550 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
553 ring->cur = ring->next = 0;
554 ring->cur_encrypt = ring->next_encrypt = 0;
558 rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
560 struct rt2560_tx_data *data;
563 if (ring->desc != NULL) {
564 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
565 BUS_DMASYNC_POSTWRITE);
566 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
567 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
570 if (ring->desc_dmat != NULL)
571 bus_dma_tag_destroy(ring->desc_dmat);
573 if (ring->data != NULL) {
574 for (i = 0; i < ring->count; i++) {
575 data = &ring->data[i];
577 if (data->m != NULL) {
578 bus_dmamap_sync(ring->data_dmat, data->map,
579 BUS_DMASYNC_POSTWRITE);
580 bus_dmamap_unload(ring->data_dmat, data->map);
584 if (data->ni != NULL)
585 ieee80211_free_node(data->ni);
587 if (data->map != NULL)
588 bus_dmamap_destroy(ring->data_dmat, data->map);
591 free(ring->data, M_DEVBUF);
594 if (ring->data_dmat != NULL)
595 bus_dma_tag_destroy(ring->data_dmat);
599 rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
602 struct rt2560_rx_desc *desc;
603 struct rt2560_rx_data *data;
608 ring->cur = ring->next = 0;
609 ring->cur_decrypt = 0;
611 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0,
612 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
613 count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
614 0, NULL, NULL, &ring->desc_dmat);
616 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
620 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
621 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
623 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
627 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
628 count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
631 device_printf(sc->sc_dev, "could not load desc DMA map\n");
635 ring->data = malloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
637 if (ring->data == NULL) {
638 device_printf(sc->sc_dev, "could not allocate soft data\n");
644 * Pre-allocate Rx buffers and populate Rx ring.
646 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
647 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
648 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
650 device_printf(sc->sc_dev, "could not create data DMA tag\n");
654 for (i = 0; i < count; i++) {
655 desc = &sc->rxq.desc[i];
656 data = &sc->rxq.data[i];
658 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
660 device_printf(sc->sc_dev, "could not create DMA map\n");
664 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
665 if (data->m == NULL) {
666 device_printf(sc->sc_dev,
667 "could not allocate rx mbuf\n");
672 error = bus_dmamap_load(ring->data_dmat, data->map,
673 mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
676 device_printf(sc->sc_dev,
677 "could not load rx buf DMA map");
681 desc->flags = htole32(RT2560_RX_BUSY);
682 desc->physaddr = htole32(physaddr);
685 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
689 fail: rt2560_free_rx_ring(sc, ring);
694 rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
698 for (i = 0; i < ring->count; i++) {
699 ring->desc[i].flags = htole32(RT2560_RX_BUSY);
700 ring->data[i].drop = 0;
703 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
705 ring->cur = ring->next = 0;
706 ring->cur_decrypt = 0;
710 rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
712 struct rt2560_rx_data *data;
715 if (ring->desc != NULL) {
716 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
717 BUS_DMASYNC_POSTWRITE);
718 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
719 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
722 if (ring->desc_dmat != NULL)
723 bus_dma_tag_destroy(ring->desc_dmat);
725 if (ring->data != NULL) {
726 for (i = 0; i < ring->count; i++) {
727 data = &ring->data[i];
729 if (data->m != NULL) {
730 bus_dmamap_sync(ring->data_dmat, data->map,
731 BUS_DMASYNC_POSTREAD);
732 bus_dmamap_unload(ring->data_dmat, data->map);
736 if (data->map != NULL)
737 bus_dmamap_destroy(ring->data_dmat, data->map);
740 free(ring->data, M_DEVBUF);
743 if (ring->data_dmat != NULL)
744 bus_dma_tag_destroy(ring->data_dmat);
748 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
750 struct rt2560_vap *rvp = RT2560_VAP(vap);
751 struct rt2560_softc *sc = vap->iv_ic->ic_softc;
754 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
755 /* abort TSF synchronization */
756 RAL_WRITE(sc, RT2560_CSR14, 0);
758 /* turn association led off */
759 rt2560_update_led(sc, 0, 0);
762 error = rvp->ral_newstate(vap, nstate, arg);
764 if (error == 0 && nstate == IEEE80211_S_RUN) {
765 struct ieee80211_node *ni = vap->iv_bss;
768 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
769 rt2560_update_plcp(sc);
770 rt2560_set_basicrates(sc, &ni->ni_rates);
771 rt2560_set_bssid(sc, ni->ni_bssid);
774 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
775 vap->iv_opmode == IEEE80211_M_IBSS ||
776 vap->iv_opmode == IEEE80211_M_MBSS) {
777 m = ieee80211_beacon_alloc(ni);
779 device_printf(sc->sc_dev,
780 "could not allocate beacon\n");
783 ieee80211_ref_node(ni);
784 error = rt2560_tx_bcn(sc, m, ni);
789 /* turn association led on */
790 rt2560_update_led(sc, 1, 0);
792 if (vap->iv_opmode != IEEE80211_M_MONITOR)
793 rt2560_enable_tsf_sync(sc);
795 rt2560_enable_tsf(sc);
801 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
805 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
811 /* clock C once before the first command */
812 RT2560_EEPROM_CTL(sc, 0);
814 RT2560_EEPROM_CTL(sc, RT2560_S);
815 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
816 RT2560_EEPROM_CTL(sc, RT2560_S);
818 /* write start bit (1) */
819 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
820 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
822 /* write READ opcode (10) */
823 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
824 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
825 RT2560_EEPROM_CTL(sc, RT2560_S);
826 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
828 /* write address (A5-A0 or A7-A0) */
829 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
830 for (; n >= 0; n--) {
831 RT2560_EEPROM_CTL(sc, RT2560_S |
832 (((addr >> n) & 1) << RT2560_SHIFT_D));
833 RT2560_EEPROM_CTL(sc, RT2560_S |
834 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
837 RT2560_EEPROM_CTL(sc, RT2560_S);
839 /* read data Q15-Q0 */
841 for (n = 15; n >= 0; n--) {
842 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
843 tmp = RAL_READ(sc, RT2560_CSR21);
844 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
845 RT2560_EEPROM_CTL(sc, RT2560_S);
848 RT2560_EEPROM_CTL(sc, 0);
850 /* clear Chip Select and clock C */
851 RT2560_EEPROM_CTL(sc, RT2560_S);
852 RT2560_EEPROM_CTL(sc, 0);
853 RT2560_EEPROM_CTL(sc, RT2560_C);
859 * Some frames were processed by the hardware cipher engine and are ready for
863 rt2560_encryption_intr(struct rt2560_softc *sc)
865 struct rt2560_tx_desc *desc;
868 /* retrieve last descriptor index processed by cipher engine */
869 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
870 hw /= RT2560_TX_DESC_SIZE;
872 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
873 BUS_DMASYNC_POSTREAD);
875 while (sc->txq.next_encrypt != hw) {
876 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
877 printf("hw encrypt %d, cur_encrypt %d\n", hw,
878 sc->txq.cur_encrypt);
882 desc = &sc->txq.desc[sc->txq.next_encrypt];
884 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
885 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
888 /* for TKIP, swap eiv field to fix a bug in ASIC */
889 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
890 RT2560_TX_CIPHER_TKIP)
891 desc->eiv = bswap32(desc->eiv);
893 /* mark the frame ready for transmission */
894 desc->flags |= htole32(RT2560_TX_VALID);
895 desc->flags |= htole32(RT2560_TX_BUSY);
897 DPRINTFN(sc, 15, "encryption done idx=%u\n",
898 sc->txq.next_encrypt);
900 sc->txq.next_encrypt =
901 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
904 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
905 BUS_DMASYNC_PREWRITE);
908 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
912 rt2560_tx_intr(struct rt2560_softc *sc)
914 struct ieee80211_ratectl_tx_status *txs = &sc->sc_txs;
915 struct rt2560_tx_desc *desc;
916 struct rt2560_tx_data *data;
918 struct ieee80211_node *ni;
922 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
923 BUS_DMASYNC_POSTREAD);
925 txs->flags = IEEE80211_RATECTL_STATUS_LONG_RETRY;
927 desc = &sc->txq.desc[sc->txq.next];
928 data = &sc->txq.data[sc->txq.next];
930 flags = le32toh(desc->flags);
931 if ((flags & RT2560_TX_BUSY) ||
932 (flags & RT2560_TX_CIPHER_BUSY) ||
933 !(flags & RT2560_TX_VALID))
939 switch (flags & RT2560_TX_RESULT_MASK) {
940 case RT2560_TX_SUCCESS:
941 txs->status = IEEE80211_RATECTL_TX_SUCCESS;
942 txs->long_retries = 0;
944 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
945 if (data->rix != IEEE80211_FIXED_RATE_NONE)
946 ieee80211_ratectl_tx_complete(ni, txs);
950 case RT2560_TX_SUCCESS_RETRY:
951 txs->status = IEEE80211_RATECTL_TX_SUCCESS;
952 txs->long_retries = RT2560_TX_RETRYCNT(flags);
954 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
956 if (data->rix != IEEE80211_FIXED_RATE_NONE)
957 ieee80211_ratectl_tx_complete(ni, txs);
961 case RT2560_TX_FAIL_RETRY:
962 txs->status = IEEE80211_RATECTL_TX_FAIL_LONG;
963 txs->long_retries = RT2560_TX_RETRYCNT(flags);
965 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
967 if (data->rix != IEEE80211_FIXED_RATE_NONE)
968 ieee80211_ratectl_tx_complete(ni, txs);
972 case RT2560_TX_FAIL_INVALID:
973 case RT2560_TX_FAIL_OTHER:
975 device_printf(sc->sc_dev, "sending data frame failed "
980 bus_dmamap_sync(sc->txq.data_dmat, data->map,
981 BUS_DMASYNC_POSTWRITE);
982 bus_dmamap_unload(sc->txq.data_dmat, data->map);
984 ieee80211_tx_complete(ni, m, status);
988 /* descriptor is no longer valid */
989 desc->flags &= ~htole32(RT2560_TX_VALID);
991 DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
994 sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
997 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
998 BUS_DMASYNC_PREWRITE);
1000 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1001 sc->sc_tx_timer = 0;
1003 if (sc->txq.queued < RT2560_TX_RING_COUNT - 1)
1008 rt2560_prio_intr(struct rt2560_softc *sc)
1010 struct rt2560_tx_desc *desc;
1011 struct rt2560_tx_data *data;
1012 struct ieee80211_node *ni;
1016 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1017 BUS_DMASYNC_POSTREAD);
1020 desc = &sc->prioq.desc[sc->prioq.next];
1021 data = &sc->prioq.data[sc->prioq.next];
1023 flags = le32toh(desc->flags);
1024 if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
1027 switch (flags & RT2560_TX_RESULT_MASK) {
1028 case RT2560_TX_SUCCESS:
1029 DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
1032 case RT2560_TX_SUCCESS_RETRY:
1033 DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
1034 (flags >> 5) & 0x7);
1037 case RT2560_TX_FAIL_RETRY:
1038 DPRINTFN(sc, 9, "%s\n",
1039 "sending mgt frame failed (too much retries)");
1042 case RT2560_TX_FAIL_INVALID:
1043 case RT2560_TX_FAIL_OTHER:
1045 device_printf(sc->sc_dev, "sending mgt frame failed "
1050 bus_dmamap_sync(sc->prioq.data_dmat, data->map,
1051 BUS_DMASYNC_POSTWRITE);
1052 bus_dmamap_unload(sc->prioq.data_dmat, data->map);
1059 /* descriptor is no longer valid */
1060 desc->flags &= ~htole32(RT2560_TX_VALID);
1062 DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
1065 sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
1067 if (m->m_flags & M_TXCB)
1068 ieee80211_process_callback(ni, m,
1069 (flags & RT2560_TX_RESULT_MASK) &~
1070 (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
1072 ieee80211_free_node(ni);
1075 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1076 BUS_DMASYNC_PREWRITE);
1078 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1079 sc->sc_tx_timer = 0;
1081 if (sc->prioq.queued < RT2560_PRIO_RING_COUNT)
1086 * Some frames were processed by the hardware cipher engine and are ready for
1087 * handoff to the IEEE802.11 layer.
1090 rt2560_decryption_intr(struct rt2560_softc *sc)
1092 struct ieee80211com *ic = &sc->sc_ic;
1093 struct rt2560_rx_desc *desc;
1094 struct rt2560_rx_data *data;
1095 bus_addr_t physaddr;
1096 struct ieee80211_frame *wh;
1097 struct ieee80211_node *ni;
1098 struct mbuf *mnew, *m;
1102 /* retrieve last descriptor index processed by cipher engine */
1103 hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
1104 hw /= RT2560_RX_DESC_SIZE;
1106 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1107 BUS_DMASYNC_POSTREAD);
1109 for (; sc->rxq.cur_decrypt != hw;) {
1110 desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
1111 data = &sc->rxq.data[sc->rxq.cur_decrypt];
1113 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1114 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1118 counter_u64_add(ic->ic_ierrors, 1);
1122 if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
1123 (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) {
1124 counter_u64_add(ic->ic_ierrors, 1);
1129 * Try to allocate a new mbuf for this ring element and load it
1130 * before processing the current mbuf. If the ring element
1131 * cannot be loaded, drop the received packet and reuse the old
1132 * mbuf. In the unlikely case that the old mbuf can't be
1133 * reloaded either, explicitly panic.
1135 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1137 counter_u64_add(ic->ic_ierrors, 1);
1141 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1142 BUS_DMASYNC_POSTREAD);
1143 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1145 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1146 mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
1151 /* try to reload the old mbuf */
1152 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1153 mtod(data->m, void *), MCLBYTES,
1154 rt2560_dma_map_addr, &physaddr, 0);
1156 /* very unlikely that it will fail... */
1157 panic("%s: could not load old rx mbuf",
1158 device_get_name(sc->sc_dev));
1160 counter_u64_add(ic->ic_ierrors, 1);
1165 * New mbuf successfully loaded, update Rx ring and continue
1170 desc->physaddr = htole32(physaddr);
1173 m->m_pkthdr.len = m->m_len =
1174 (le32toh(desc->flags) >> 16) & 0xfff;
1176 rssi = RT2560_RSSI(sc, desc->rssi);
1177 nf = RT2560_NOISE_FLOOR;
1178 if (ieee80211_radiotap_active(ic)) {
1179 struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
1180 uint32_t tsf_lo, tsf_hi;
1182 /* get timestamp (low and high 32 bits) */
1183 tsf_hi = RAL_READ(sc, RT2560_CSR17);
1184 tsf_lo = RAL_READ(sc, RT2560_CSR16);
1187 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1189 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1190 (desc->flags & htole32(RT2560_RX_OFDM)) ?
1191 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1192 tap->wr_antenna = sc->rx_ant;
1193 tap->wr_antsignal = nf + rssi;
1194 tap->wr_antnoise = nf;
1197 sc->sc_flags |= RT2560_F_INPUT_RUNNING;
1199 wh = mtod(m, struct ieee80211_frame *);
1200 ni = ieee80211_find_rxnode(ic,
1201 (struct ieee80211_frame_min *)wh);
1203 (void) ieee80211_input(ni, m, rssi, nf);
1204 ieee80211_free_node(ni);
1206 (void) ieee80211_input_all(ic, m, rssi, nf);
1209 sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
1210 skip: desc->flags = htole32(RT2560_RX_BUSY);
1212 DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
1214 sc->rxq.cur_decrypt =
1215 (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
1218 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1219 BUS_DMASYNC_PREWRITE);
1223 * Some frames were received. Pass them to the hardware cipher engine before
1224 * sending them to the 802.11 layer.
1227 rt2560_rx_intr(struct rt2560_softc *sc)
1229 struct rt2560_rx_desc *desc;
1230 struct rt2560_rx_data *data;
1232 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1233 BUS_DMASYNC_POSTREAD);
1236 desc = &sc->rxq.desc[sc->rxq.cur];
1237 data = &sc->rxq.data[sc->rxq.cur];
1239 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1240 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1245 if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
1246 (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
1248 * This should not happen since we did not request
1249 * to receive those frames when we filled RXCSR0.
1251 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1252 le32toh(desc->flags));
1256 if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
1257 DPRINTFN(sc, 5, "%s\n", "bad length");
1261 /* mark the frame for decryption */
1262 desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
1264 DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
1266 sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
1269 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1270 BUS_DMASYNC_PREWRITE);
1273 RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
1277 rt2560_beacon_update(struct ieee80211vap *vap, int item)
1279 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
1281 setbit(bo->bo_flags, item);
1285 * This function is called periodically in IBSS mode when a new beacon must be
1289 rt2560_beacon_expire(struct rt2560_softc *sc)
1291 struct ieee80211com *ic = &sc->sc_ic;
1292 struct rt2560_tx_data *data;
1294 if (ic->ic_opmode != IEEE80211_M_IBSS &&
1295 ic->ic_opmode != IEEE80211_M_HOSTAP &&
1296 ic->ic_opmode != IEEE80211_M_MBSS)
1299 data = &sc->bcnq.data[sc->bcnq.next];
1301 * Don't send beacon if bsschan isn't set
1303 if (data->ni == NULL)
1306 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1307 bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
1309 /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
1310 ieee80211_beacon_update(data->ni, data->m, 1);
1312 rt2560_tx_bcn(sc, data->m, data->ni);
1314 DPRINTFN(sc, 15, "%s", "beacon expired\n");
1316 sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
1321 rt2560_wakeup_expire(struct rt2560_softc *sc)
1323 DPRINTFN(sc, 2, "%s", "wakeup expired\n");
1327 rt2560_intr(void *arg)
1329 struct rt2560_softc *sc = arg;
1334 /* disable interrupts */
1335 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
1337 /* don't re-enable interrupts if we're shutting down */
1338 if (!(sc->sc_flags & RT2560_F_RUNNING)) {
1343 r = RAL_READ(sc, RT2560_CSR7);
1344 RAL_WRITE(sc, RT2560_CSR7, r);
1346 if (r & RT2560_BEACON_EXPIRE)
1347 rt2560_beacon_expire(sc);
1349 if (r & RT2560_WAKEUP_EXPIRE)
1350 rt2560_wakeup_expire(sc);
1352 if (r & RT2560_ENCRYPTION_DONE)
1353 rt2560_encryption_intr(sc);
1355 if (r & RT2560_TX_DONE)
1358 if (r & RT2560_PRIO_DONE)
1359 rt2560_prio_intr(sc);
1361 if (r & RT2560_DECRYPTION_DONE)
1362 rt2560_decryption_intr(sc);
1364 if (r & RT2560_RX_DONE) {
1366 rt2560_encryption_intr(sc);
1369 /* re-enable interrupts */
1370 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
1375 #define RAL_SIFS 10 /* us */
1377 #define RT2560_TXRX_TURNAROUND 10 /* us */
1380 rt2560_plcp_signal(int rate)
1383 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1384 case 12: return 0xb;
1385 case 18: return 0xf;
1386 case 24: return 0xa;
1387 case 36: return 0xe;
1388 case 48: return 0x9;
1389 case 72: return 0xd;
1390 case 96: return 0x8;
1391 case 108: return 0xc;
1393 /* CCK rates (NB: not IEEE std, device-specific) */
1396 case 11: return 0x2;
1397 case 22: return 0x3;
1399 return 0xff; /* XXX unsupported/unknown rate */
1403 rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
1404 uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
1406 struct ieee80211com *ic = &sc->sc_ic;
1407 uint16_t plcp_length;
1410 desc->flags = htole32(flags);
1411 desc->flags |= htole32(len << 16);
1413 desc->physaddr = htole32(physaddr);
1414 desc->wme = htole16(
1416 RT2560_LOGCWMIN(3) |
1417 RT2560_LOGCWMAX(8));
1419 /* setup PLCP fields */
1420 desc->plcp_signal = rt2560_plcp_signal(rate);
1421 desc->plcp_service = 4;
1423 len += IEEE80211_CRC_LEN;
1424 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1425 desc->flags |= htole32(RT2560_TX_OFDM);
1427 plcp_length = len & 0xfff;
1428 desc->plcp_length_hi = plcp_length >> 6;
1429 desc->plcp_length_lo = plcp_length & 0x3f;
1431 plcp_length = howmany(16 * len, rate);
1433 remainder = (16 * len) % 22;
1434 if (remainder != 0 && remainder < 7)
1435 desc->plcp_service |= RT2560_PLCP_LENGEXT;
1437 desc->plcp_length_hi = plcp_length >> 8;
1438 desc->plcp_length_lo = plcp_length & 0xff;
1440 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1441 desc->plcp_signal |= 0x08;
1445 desc->flags |= htole32(RT2560_TX_VALID);
1446 desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
1447 : htole32(RT2560_TX_BUSY);
1451 rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
1452 struct ieee80211_node *ni)
1454 struct ieee80211vap *vap = ni->ni_vap;
1455 struct rt2560_tx_desc *desc;
1456 struct rt2560_tx_data *data;
1457 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1458 int nsegs, rate, error;
1460 desc = &sc->bcnq.desc[sc->bcnq.cur];
1461 data = &sc->bcnq.data[sc->bcnq.cur];
1463 /* XXX maybe a separate beacon rate? */
1464 rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
1466 error = bus_dmamap_load_mbuf_sg(sc->bcnq.data_dmat, data->map, m0,
1467 segs, &nsegs, BUS_DMA_NOWAIT);
1469 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1475 if (ieee80211_radiotap_active_vap(vap)) {
1476 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1479 tap->wt_rate = rate;
1480 tap->wt_antenna = sc->tx_ant;
1482 ieee80211_radiotap_tx(vap, m0);
1488 rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
1489 RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr);
1491 DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
1492 m0->m_pkthdr.len, sc->bcnq.cur, rate);
1494 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1495 bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
1496 BUS_DMASYNC_PREWRITE);
1498 sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
1504 rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
1505 struct ieee80211_node *ni)
1507 struct ieee80211vap *vap = ni->ni_vap;
1508 struct ieee80211com *ic = ni->ni_ic;
1509 struct rt2560_tx_desc *desc;
1510 struct rt2560_tx_data *data;
1511 struct ieee80211_frame *wh;
1512 struct ieee80211_key *k;
1513 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1516 int nsegs, rate, error;
1518 desc = &sc->prioq.desc[sc->prioq.cur];
1519 data = &sc->prioq.data[sc->prioq.cur];
1521 rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
1523 wh = mtod(m0, struct ieee80211_frame *);
1525 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1526 k = ieee80211_crypto_encap(ni, m0);
1533 error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
1536 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1542 if (ieee80211_radiotap_active_vap(vap)) {
1543 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1546 tap->wt_rate = rate;
1547 tap->wt_antenna = sc->tx_ant;
1549 ieee80211_radiotap_tx(vap, m0);
1554 /* management frames are not taken into account for amrr */
1555 data->rix = IEEE80211_FIXED_RATE_NONE;
1557 wh = mtod(m0, struct ieee80211_frame *);
1559 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1560 flags |= RT2560_TX_ACK;
1562 dur = ieee80211_ack_duration(ic->ic_rt,
1563 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1564 *(uint16_t *)wh->i_dur = htole16(dur);
1566 /* tell hardware to add timestamp for probe responses */
1567 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1568 IEEE80211_FC0_TYPE_MGT &&
1569 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1570 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1571 flags |= RT2560_TX_TIMESTAMP;
1574 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
1577 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1578 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1579 BUS_DMASYNC_PREWRITE);
1581 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1582 m0->m_pkthdr.len, sc->prioq.cur, rate);
1586 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1587 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1593 rt2560_sendprot(struct rt2560_softc *sc,
1594 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1596 struct ieee80211com *ic = ni->ni_ic;
1597 const struct ieee80211_frame *wh;
1598 struct rt2560_tx_desc *desc;
1599 struct rt2560_tx_data *data;
1601 int protrate, ackrate, pktlen, flags, isshort, error;
1603 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1606 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1607 ("protection %d", prot));
1609 wh = mtod(m, const struct ieee80211_frame *);
1610 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1612 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1613 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1615 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1616 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1617 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1618 flags = RT2560_TX_MORE_FRAG;
1619 if (prot == IEEE80211_PROT_RTSCTS) {
1620 /* NB: CTS is the same size as an ACK */
1621 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1622 flags |= RT2560_TX_ACK;
1623 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1625 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1627 if (mprot == NULL) {
1628 /* XXX stat + msg */
1632 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1633 data = &sc->txq.data[sc->txq.cur_encrypt];
1635 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1636 mprot, segs, &nsegs, 0);
1638 device_printf(sc->sc_dev,
1639 "could not map mbuf (error %d)\n", error);
1645 data->ni = ieee80211_ref_node(ni);
1646 /* ctl frames are not taken into account for amrr */
1647 data->rix = IEEE80211_FIXED_RATE_NONE;
1649 rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
1652 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1653 BUS_DMASYNC_PREWRITE);
1656 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1662 rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
1663 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
1665 struct ieee80211vap *vap = ni->ni_vap;
1666 struct ieee80211com *ic = ni->ni_ic;
1667 struct rt2560_tx_desc *desc;
1668 struct rt2560_tx_data *data;
1669 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1671 int nsegs, rate, error;
1673 desc = &sc->prioq.desc[sc->prioq.cur];
1674 data = &sc->prioq.data[sc->prioq.cur];
1676 rate = params->ibp_rate0;
1677 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1678 /* XXX fall back to mcast/mgmt rate? */
1684 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1685 flags |= RT2560_TX_ACK;
1686 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1687 error = rt2560_sendprot(sc, m0, ni,
1688 params->ibp_flags & IEEE80211_BPF_RTS ?
1689 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1695 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1698 error = bus_dmamap_load_mbuf_sg(sc->prioq.data_dmat, data->map, m0,
1701 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1707 if (ieee80211_radiotap_active_vap(vap)) {
1708 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1711 tap->wt_rate = rate;
1712 tap->wt_antenna = sc->tx_ant;
1714 ieee80211_radiotap_tx(ni->ni_vap, m0);
1720 /* XXX need to setup descriptor ourself */
1721 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
1722 rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
1725 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1726 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1727 BUS_DMASYNC_PREWRITE);
1729 DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n",
1730 m0->m_pkthdr.len, sc->prioq.cur, rate);
1734 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1735 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1741 rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
1742 struct ieee80211_node *ni)
1744 struct ieee80211vap *vap = ni->ni_vap;
1745 struct ieee80211com *ic = ni->ni_ic;
1746 struct rt2560_tx_desc *desc;
1747 struct rt2560_tx_data *data;
1748 struct ieee80211_frame *wh;
1749 const struct ieee80211_txparam *tp;
1750 struct ieee80211_key *k;
1752 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1755 int nsegs, rate, error;
1757 wh = mtod(m0, struct ieee80211_frame *);
1759 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1760 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1761 rate = tp->mcastrate;
1762 } else if (m0->m_flags & M_EAPOL) {
1763 rate = tp->mgmtrate;
1764 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1765 rate = tp->ucastrate;
1767 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1768 rate = ni->ni_txrate;
1771 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1772 k = ieee80211_crypto_encap(ni, m0);
1778 /* packet header may have moved, reset our local pointer */
1779 wh = mtod(m0, struct ieee80211_frame *);
1783 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1784 int prot = IEEE80211_PROT_NONE;
1785 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1786 prot = IEEE80211_PROT_RTSCTS;
1787 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1788 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1789 prot = ic->ic_protmode;
1790 if (prot != IEEE80211_PROT_NONE) {
1791 error = rt2560_sendprot(sc, m0, ni, prot, rate);
1796 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1800 data = &sc->txq.data[sc->txq.cur_encrypt];
1801 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1803 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map, m0,
1805 if (error != 0 && error != EFBIG) {
1806 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1812 mnew = m_defrag(m0, M_NOWAIT);
1814 device_printf(sc->sc_dev,
1815 "could not defragment mbuf\n");
1821 error = bus_dmamap_load_mbuf_sg(sc->txq.data_dmat, data->map,
1822 m0, segs, &nsegs, 0);
1824 device_printf(sc->sc_dev,
1825 "could not map mbuf (error %d)\n", error);
1830 /* packet header may have moved, reset our local pointer */
1831 wh = mtod(m0, struct ieee80211_frame *);
1834 if (ieee80211_radiotap_active_vap(vap)) {
1835 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1838 tap->wt_rate = rate;
1839 tap->wt_antenna = sc->tx_ant;
1841 ieee80211_radiotap_tx(vap, m0);
1847 /* remember link conditions for rate adaptation algorithm */
1848 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1849 data->rix = ni->ni_txrate;
1850 /* XXX probably need last rssi value and not avg */
1851 data->rssi = ic->ic_node_getrssi(ni);
1853 data->rix = IEEE80211_FIXED_RATE_NONE;
1855 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1856 flags |= RT2560_TX_ACK;
1858 dur = ieee80211_ack_duration(ic->ic_rt,
1859 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1860 *(uint16_t *)wh->i_dur = htole16(dur);
1863 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
1866 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1867 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1868 BUS_DMASYNC_PREWRITE);
1870 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1871 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
1875 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1876 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
1882 rt2560_transmit(struct ieee80211com *ic, struct mbuf *m)
1884 struct rt2560_softc *sc = ic->ic_softc;
1888 if ((sc->sc_flags & RT2560_F_RUNNING) == 0) {
1892 error = mbufq_enqueue(&sc->sc_snd, m);
1904 rt2560_start(struct rt2560_softc *sc)
1906 struct ieee80211_node *ni;
1909 RAL_LOCK_ASSERT(sc);
1911 while (sc->txq.queued < RT2560_TX_RING_COUNT - 1 &&
1912 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1913 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1914 if (rt2560_tx_data(sc, m, ni) != 0) {
1915 if_inc_counter(ni->ni_vap->iv_ifp,
1916 IFCOUNTER_OERRORS, 1);
1917 ieee80211_free_node(ni);
1920 sc->sc_tx_timer = 5;
1925 rt2560_watchdog(void *arg)
1927 struct rt2560_softc *sc = arg;
1929 RAL_LOCK_ASSERT(sc);
1931 KASSERT(sc->sc_flags & RT2560_F_RUNNING, ("not running"));
1933 if (sc->sc_invalid) /* card ejected */
1936 rt2560_encryption_intr(sc);
1939 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1940 device_printf(sc->sc_dev, "device timeout\n");
1941 rt2560_init_locked(sc);
1942 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1943 /* NB: callout is reset in rt2560_init() */
1946 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
1950 rt2560_parent(struct ieee80211com *ic)
1952 struct rt2560_softc *sc = ic->ic_softc;
1956 if (ic->ic_nrunning > 0) {
1957 if ((sc->sc_flags & RT2560_F_RUNNING) == 0) {
1958 rt2560_init_locked(sc);
1961 rt2560_update_promisc(ic);
1962 } else if (sc->sc_flags & RT2560_F_RUNNING)
1963 rt2560_stop_locked(sc);
1966 ieee80211_start_all(ic);
1970 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
1975 for (ntries = 0; ntries < 100; ntries++) {
1976 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
1980 if (ntries == 100) {
1981 device_printf(sc->sc_dev, "could not write to BBP\n");
1985 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
1986 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
1988 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
1992 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
1997 for (ntries = 0; ntries < 100; ntries++) {
1998 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2002 if (ntries == 100) {
2003 device_printf(sc->sc_dev, "could not read from BBP\n");
2007 val = RT2560_BBP_BUSY | reg << 8;
2008 RAL_WRITE(sc, RT2560_BBPCSR, val);
2010 for (ntries = 0; ntries < 100; ntries++) {
2011 val = RAL_READ(sc, RT2560_BBPCSR);
2012 if (!(val & RT2560_BBP_BUSY))
2017 device_printf(sc->sc_dev, "could not read from BBP\n");
2022 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2027 for (ntries = 0; ntries < 100; ntries++) {
2028 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2032 if (ntries == 100) {
2033 device_printf(sc->sc_dev, "could not write to RF\n");
2037 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2039 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2041 /* remember last written value in sc */
2042 sc->rf_regs[reg] = val;
2044 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2048 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2050 struct ieee80211com *ic = &sc->sc_ic;
2054 chan = ieee80211_chan2ieee(ic, c);
2055 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2057 if (IEEE80211_IS_CHAN_2GHZ(c))
2058 power = min(sc->txpow[chan - 1], 31);
2062 /* adjust txpower using ifconfig settings */
2063 power -= (100 - ic->ic_txpowlimit) / 8;
2065 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2067 switch (sc->rf_rev) {
2068 case RT2560_RF_2522:
2069 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2070 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2071 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2074 case RT2560_RF_2523:
2075 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2076 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2077 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2078 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2081 case RT2560_RF_2524:
2082 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2083 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2084 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2085 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2088 case RT2560_RF_2525:
2089 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2090 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2091 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2092 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2094 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2095 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2096 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2097 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2100 case RT2560_RF_2525E:
2101 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2102 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2103 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2104 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2107 case RT2560_RF_2526:
2108 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2109 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2110 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2112 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2113 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2114 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2118 case RT2560_RF_5222:
2119 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2121 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2122 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2123 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2124 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2127 printf("unknown ral rev=%d\n", sc->rf_rev);
2131 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2132 /* set Japan filter bit for channel 14 */
2133 tmp = rt2560_bbp_read(sc, 70);
2135 tmp &= ~RT2560_JAPAN_FILTER;
2137 tmp |= RT2560_JAPAN_FILTER;
2139 rt2560_bbp_write(sc, 70, tmp);
2141 /* clear CRC errors */
2142 RAL_READ(sc, RT2560_CNT0);
2147 rt2560_getradiocaps(struct ieee80211com *ic,
2148 int maxchans, int *nchans, struct ieee80211_channel chans[])
2150 struct rt2560_softc *sc = ic->ic_softc;
2151 uint8_t bands[IEEE80211_MODE_BYTES];
2153 memset(bands, 0, sizeof(bands));
2154 setbit(bands, IEEE80211_MODE_11B);
2155 setbit(bands, IEEE80211_MODE_11G);
2156 ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
2157 rt2560_chan_2ghz, nitems(rt2560_chan_2ghz), bands, 0);
2159 if (sc->rf_rev == RT2560_RF_5222) {
2160 setbit(bands, IEEE80211_MODE_11A);
2161 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
2162 rt2560_chan_5ghz, nitems(rt2560_chan_5ghz), bands, 0);
2167 rt2560_set_channel(struct ieee80211com *ic)
2169 struct rt2560_softc *sc = ic->ic_softc;
2172 rt2560_set_chan(sc, ic->ic_curchan);
2179 * Disable RF auto-tuning.
2182 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2186 if (sc->rf_rev != RT2560_RF_2523) {
2187 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2188 rt2560_rf_write(sc, RAL_RF1, tmp);
2191 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2192 rt2560_rf_write(sc, RAL_RF3, tmp);
2194 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2199 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2203 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2205 struct ieee80211com *ic = &sc->sc_ic;
2206 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2207 uint16_t logcwmin, preload;
2210 /* first, disable TSF synchronization */
2211 RAL_WRITE(sc, RT2560_CSR14, 0);
2213 tmp = 16 * vap->iv_bss->ni_intval;
2214 RAL_WRITE(sc, RT2560_CSR12, tmp);
2216 RAL_WRITE(sc, RT2560_CSR13, 0);
2219 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2220 tmp = logcwmin << 16 | preload;
2221 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2223 /* finally, enable TSF synchronization */
2224 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2225 if (ic->ic_opmode == IEEE80211_M_STA)
2226 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2228 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2229 RT2560_ENABLE_BEACON_GENERATOR;
2230 RAL_WRITE(sc, RT2560_CSR14, tmp);
2232 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2236 rt2560_enable_tsf(struct rt2560_softc *sc)
2238 RAL_WRITE(sc, RT2560_CSR14, 0);
2239 RAL_WRITE(sc, RT2560_CSR14,
2240 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
2244 rt2560_update_plcp(struct rt2560_softc *sc)
2246 struct ieee80211com *ic = &sc->sc_ic;
2248 /* no short preamble for 1Mbps */
2249 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2251 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2252 /* values taken from the reference driver */
2253 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2254 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2255 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2257 /* same values as above or'ed 0x8 */
2258 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2259 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2260 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2263 DPRINTF(sc, "updating PLCP for %s preamble\n",
2264 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2268 * This function can be called by ieee80211_set_shortslottime(). Refer to
2269 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2272 rt2560_update_slot(struct ieee80211com *ic)
2274 struct rt2560_softc *sc = ic->ic_softc;
2276 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2279 #ifndef FORCE_SLOTTIME
2280 slottime = IEEE80211_GET_SLOTTIME(ic);
2283 * Setting slot time according to "short slot time" capability
2284 * in beacon/probe_resp seems to cause problem to acknowledge
2285 * certain AP's data frames transimitted at CCK/DS rates: the
2286 * problematic AP keeps retransmitting data frames, probably
2287 * because MAC level acks are not received by hardware.
2288 * So we cheat a little bit here by claiming we are capable of
2289 * "short slot time" but setting hardware slot time to the normal
2290 * slot time. ral(4) does not seem to have trouble to receive
2291 * frames transmitted using short slot time even if hardware
2292 * slot time is set to normal slot time. If we didn't use this
2293 * trick, we would have to claim that short slot time is not
2294 * supported; this would give relative poor RX performance
2295 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2298 slottime = IEEE80211_DUR_SLOT;
2301 /* update the MAC slot boundaries */
2302 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2303 tx_pifs = tx_sifs + slottime;
2304 tx_difs = IEEE80211_DUR_DIFS(tx_sifs, slottime);
2305 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2307 tmp = RAL_READ(sc, RT2560_CSR11);
2308 tmp = (tmp & ~0x1f00) | slottime << 8;
2309 RAL_WRITE(sc, RT2560_CSR11, tmp);
2311 tmp = tx_pifs << 16 | tx_sifs;
2312 RAL_WRITE(sc, RT2560_CSR18, tmp);
2314 tmp = eifs << 16 | tx_difs;
2315 RAL_WRITE(sc, RT2560_CSR19, tmp);
2317 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2321 rt2560_set_basicrates(struct rt2560_softc *sc,
2322 const struct ieee80211_rateset *rs)
2324 struct ieee80211com *ic = &sc->sc_ic;
2329 for (i = 0; i < rs->rs_nrates; i++) {
2330 rate = rs->rs_rates[i];
2332 if (!(rate & IEEE80211_RATE_BASIC))
2335 mask |= 1 << ieee80211_legacy_rate_lookup(ic->ic_rt,
2336 IEEE80211_RV(rate));
2339 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, mask);
2341 DPRINTF(sc, "Setting basic rate mask to 0x%x\n", mask);
2345 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2349 /* set ON period to 70ms and OFF period to 30ms */
2350 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2351 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2355 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2359 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2360 RAL_WRITE(sc, RT2560_CSR5, tmp);
2362 tmp = bssid[4] | bssid[5] << 8;
2363 RAL_WRITE(sc, RT2560_CSR6, tmp);
2365 DPRINTF(sc, "setting BSSID to %6D\n", bssid, ":");
2369 rt2560_set_macaddr(struct rt2560_softc *sc, const uint8_t *addr)
2373 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2374 RAL_WRITE(sc, RT2560_CSR3, tmp);
2376 tmp = addr[4] | addr[5] << 8;
2377 RAL_WRITE(sc, RT2560_CSR4, tmp);
2379 DPRINTF(sc, "setting MAC address to %6D\n", addr, ":");
2383 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2387 tmp = RAL_READ(sc, RT2560_CSR3);
2388 addr[0] = tmp & 0xff;
2389 addr[1] = (tmp >> 8) & 0xff;
2390 addr[2] = (tmp >> 16) & 0xff;
2391 addr[3] = (tmp >> 24);
2393 tmp = RAL_READ(sc, RT2560_CSR4);
2394 addr[4] = tmp & 0xff;
2395 addr[5] = (tmp >> 8) & 0xff;
2399 rt2560_update_promisc(struct ieee80211com *ic)
2401 struct rt2560_softc *sc = ic->ic_softc;
2404 tmp = RAL_READ(sc, RT2560_RXCSR0);
2406 tmp &= ~RT2560_DROP_NOT_TO_ME;
2407 if (ic->ic_promisc == 0)
2408 tmp |= RT2560_DROP_NOT_TO_ME;
2410 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2412 DPRINTF(sc, "%s promiscuous mode\n",
2413 (ic->ic_promisc > 0) ? "entering" : "leaving");
2417 rt2560_get_rf(int rev)
2420 case RT2560_RF_2522: return "RT2522";
2421 case RT2560_RF_2523: return "RT2523";
2422 case RT2560_RF_2524: return "RT2524";
2423 case RT2560_RF_2525: return "RT2525";
2424 case RT2560_RF_2525E: return "RT2525e";
2425 case RT2560_RF_2526: return "RT2526";
2426 case RT2560_RF_5222: return "RT5222";
2427 default: return "unknown";
2432 rt2560_read_config(struct rt2560_softc *sc)
2437 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2438 sc->rf_rev = (val >> 11) & 0x7;
2439 sc->hw_radio = (val >> 10) & 0x1;
2440 sc->led_mode = (val >> 6) & 0x7;
2441 sc->rx_ant = (val >> 4) & 0x3;
2442 sc->tx_ant = (val >> 2) & 0x3;
2443 sc->nb_ant = val & 0x3;
2445 /* read default values for BBP registers */
2446 for (i = 0; i < 16; i++) {
2447 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2448 if (val == 0 || val == 0xffff)
2451 sc->bbp_prom[i].reg = val >> 8;
2452 sc->bbp_prom[i].val = val & 0xff;
2455 /* read Tx power for all b/g channels */
2456 for (i = 0; i < 14 / 2; i++) {
2457 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2458 sc->txpow[i * 2] = val & 0xff;
2459 sc->txpow[i * 2 + 1] = val >> 8;
2461 for (i = 0; i < 14; ++i) {
2462 if (sc->txpow[i] > 31)
2466 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2467 if ((val & 0xff) == 0xff)
2468 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2470 sc->rssi_corr = val & 0xff;
2471 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2472 sc->rssi_corr, val);
2477 rt2560_scan_start(struct ieee80211com *ic)
2479 struct rt2560_softc *sc = ic->ic_softc;
2481 /* abort TSF synchronization */
2482 RAL_WRITE(sc, RT2560_CSR14, 0);
2483 rt2560_set_bssid(sc, ieee80211broadcastaddr);
2487 rt2560_scan_end(struct ieee80211com *ic)
2489 struct rt2560_softc *sc = ic->ic_softc;
2490 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2492 rt2560_enable_tsf_sync(sc);
2493 /* XXX keep local copy */
2494 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2498 rt2560_bbp_init(struct rt2560_softc *sc)
2502 /* wait for BBP to be ready */
2503 for (ntries = 0; ntries < 100; ntries++) {
2504 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2508 if (ntries == 100) {
2509 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2513 /* initialize BBP registers to default values */
2514 for (i = 0; i < nitems(rt2560_def_bbp); i++) {
2515 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2516 rt2560_def_bbp[i].val);
2519 /* initialize BBP registers to values stored in EEPROM */
2520 for (i = 0; i < 16; i++) {
2521 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2523 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2525 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2531 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2536 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2538 tx |= RT2560_BBP_ANTA;
2539 else if (antenna == 2)
2540 tx |= RT2560_BBP_ANTB;
2542 tx |= RT2560_BBP_DIVERSITY;
2544 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2545 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2546 sc->rf_rev == RT2560_RF_5222)
2547 tx |= RT2560_BBP_FLIPIQ;
2549 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2551 /* update values for CCK and OFDM in BBPCSR1 */
2552 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2553 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2554 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2558 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2562 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2564 rx |= RT2560_BBP_ANTA;
2565 else if (antenna == 2)
2566 rx |= RT2560_BBP_ANTB;
2568 rx |= RT2560_BBP_DIVERSITY;
2570 /* need to force no I/Q flip for RF 2525e and 2526 */
2571 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2572 rx &= ~RT2560_BBP_FLIPIQ;
2574 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2578 rt2560_init_locked(struct rt2560_softc *sc)
2580 struct ieee80211com *ic = &sc->sc_ic;
2581 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2585 RAL_LOCK_ASSERT(sc);
2587 rt2560_stop_locked(sc);
2589 /* setup tx rings */
2590 tmp = RT2560_PRIO_RING_COUNT << 24 |
2591 RT2560_ATIM_RING_COUNT << 16 |
2592 RT2560_TX_RING_COUNT << 8 |
2593 RT2560_TX_DESC_SIZE;
2595 /* rings must be initialized in this exact order */
2596 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2597 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2598 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2599 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2600 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2603 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2605 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2606 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2608 /* initialize MAC registers to default values */
2609 for (i = 0; i < nitems(rt2560_def_mac); i++)
2610 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2612 rt2560_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2614 /* set basic rate set (will be updated later) */
2615 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2617 rt2560_update_slot(ic);
2618 rt2560_update_plcp(sc);
2619 rt2560_update_led(sc, 0, 0);
2621 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2622 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2624 if (rt2560_bbp_init(sc) != 0) {
2625 rt2560_stop_locked(sc);
2629 rt2560_set_txantenna(sc, sc->tx_ant);
2630 rt2560_set_rxantenna(sc, sc->rx_ant);
2632 /* set default BSS channel */
2633 rt2560_set_chan(sc, ic->ic_curchan);
2636 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2637 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2638 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2639 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2640 ic->ic_opmode != IEEE80211_M_MBSS)
2641 tmp |= RT2560_DROP_TODS;
2642 if (ic->ic_promisc == 0)
2643 tmp |= RT2560_DROP_NOT_TO_ME;
2645 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2647 /* clear old FCS and Rx FIFO errors */
2648 RAL_READ(sc, RT2560_CNT0);
2649 RAL_READ(sc, RT2560_CNT4);
2651 /* clear any pending interrupts */
2652 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2654 /* enable interrupts */
2655 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2657 sc->sc_flags |= RT2560_F_RUNNING;
2659 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog, sc);
2663 rt2560_init(void *priv)
2665 struct rt2560_softc *sc = priv;
2666 struct ieee80211com *ic = &sc->sc_ic;
2669 rt2560_init_locked(sc);
2672 if (sc->sc_flags & RT2560_F_RUNNING)
2673 ieee80211_start_all(ic); /* start all vap's */
2677 rt2560_stop_locked(struct rt2560_softc *sc)
2679 volatile int *flags = &sc->sc_flags;
2681 RAL_LOCK_ASSERT(sc);
2683 while (*flags & RT2560_F_INPUT_RUNNING)
2684 msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10);
2686 callout_stop(&sc->watchdog_ch);
2687 sc->sc_tx_timer = 0;
2689 if (sc->sc_flags & RT2560_F_RUNNING) {
2690 sc->sc_flags &= ~RT2560_F_RUNNING;
2693 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2696 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2698 /* reset ASIC (imply reset BBP) */
2699 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2700 RAL_WRITE(sc, RT2560_CSR1, 0);
2702 /* disable interrupts */
2703 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2705 /* reset Tx and Rx rings */
2706 rt2560_reset_tx_ring(sc, &sc->txq);
2707 rt2560_reset_tx_ring(sc, &sc->atimq);
2708 rt2560_reset_tx_ring(sc, &sc->prioq);
2709 rt2560_reset_tx_ring(sc, &sc->bcnq);
2710 rt2560_reset_rx_ring(sc, &sc->rxq);
2715 rt2560_stop(void *arg)
2717 struct rt2560_softc *sc = arg;
2720 rt2560_stop_locked(sc);
2725 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2726 const struct ieee80211_bpf_params *params)
2728 struct ieee80211com *ic = ni->ni_ic;
2729 struct rt2560_softc *sc = ic->ic_softc;
2733 /* prevent management frames from being sent if we're not ready */
2734 if (!(sc->sc_flags & RT2560_F_RUNNING)) {
2739 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2742 return ENOBUFS; /* XXX */
2745 if (params == NULL) {
2747 * Legacy path; interpret frame contents to decide
2748 * precisely how to send the frame.
2750 if (rt2560_tx_mgt(sc, m, ni) != 0)
2754 * Caller supplied explicit parameters to use in
2755 * sending the frame.
2757 if (rt2560_tx_raw(sc, m, ni, params))
2760 sc->sc_tx_timer = 5;
2767 return EIO; /* XXX */