1 /* $FreeBSD: head/sys/dev/ral/rt2560.c 195618 2009-07-11 15:02:45Z rpaulo $ */
4 * Copyright (c) 2005, 2006
5 * Damien Bergamini <damien.bergamini@free.fr>
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 * $FreeBSD: head/sys/dev/ral/rt2560.c 195618 2009-07-11 15:02:45Z rpaulo $
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>
45 #include <net/if_arp.h>
46 #include <net/ethernet.h>
47 #include <net/if_dl.h>
48 #include <net/if_media.h>
49 #include <net/if_types.h>
50 #include <net/ifq_var.h>
52 #include <netproto/802_11/ieee80211_var.h>
53 #include <netproto/802_11/ieee80211_radiotap.h>
54 #include <netproto/802_11/ieee80211_regdomain.h>
55 #include <netproto/802_11/ieee80211_ratectl.h>
57 #include <netinet/in.h>
58 #include <netinet/in_systm.h>
59 #include <netinet/in_var.h>
60 #include <netinet/ip.h>
61 #include <netinet/if_ether.h>
63 #include <dev/netif/ral/rt2560reg.h>
64 #include <dev/netif/ral/rt2560var.h>
66 #define RT2560_RSSI(sc, rssi) \
67 ((rssi) > (RT2560_NOISE_FLOOR + (sc)->rssi_corr) ? \
68 ((rssi) - RT2560_NOISE_FLOOR - (sc)->rssi_corr) : 0)
72 #define DPRINTF(sc, fmt, ...) do { \
73 if (sc->sc_debug > 0) \
74 kprintf(fmt, __VA_ARGS__); \
76 #define DPRINTFN(sc, n, fmt, ...) do { \
77 if (sc->sc_debug >= (n)) \
78 kprintf(fmt, __VA_ARGS__); \
81 #define DPRINTF(sc, fmt, ...)
82 #define DPRINTFN(sc, n, fmt, ...)
85 static struct ieee80211vap *rt2560_vap_create(struct ieee80211com *,
86 const char name[IFNAMSIZ], int unit,
87 enum ieee80211_opmode opmode,
88 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
89 const uint8_t mac[IEEE80211_ADDR_LEN]);
90 static void rt2560_vap_delete(struct ieee80211vap *);
91 static void rt2560_dma_map_addr(void *, bus_dma_segment_t *, int,
93 static int rt2560_alloc_tx_ring(struct rt2560_softc *,
94 struct rt2560_tx_ring *, int);
95 static void rt2560_reset_tx_ring(struct rt2560_softc *,
96 struct rt2560_tx_ring *);
97 static void rt2560_free_tx_ring(struct rt2560_softc *,
98 struct rt2560_tx_ring *);
99 static int rt2560_alloc_rx_ring(struct rt2560_softc *,
100 struct rt2560_rx_ring *, int);
101 static void rt2560_reset_rx_ring(struct rt2560_softc *,
102 struct rt2560_rx_ring *);
103 static void rt2560_free_rx_ring(struct rt2560_softc *,
104 struct rt2560_rx_ring *);
105 static int rt2560_newstate(struct ieee80211vap *,
106 enum ieee80211_state, int);
107 static uint16_t rt2560_eeprom_read(struct rt2560_softc *, uint8_t);
108 static void rt2560_encryption_intr(struct rt2560_softc *);
109 static void rt2560_tx_intr(struct rt2560_softc *);
110 static void rt2560_prio_intr(struct rt2560_softc *);
111 static void rt2560_decryption_intr(struct rt2560_softc *);
112 static void rt2560_rx_intr(struct rt2560_softc *);
113 static void rt2560_beacon_update(struct ieee80211vap *, int item);
114 static void rt2560_beacon_expire(struct rt2560_softc *);
115 static void rt2560_wakeup_expire(struct rt2560_softc *);
116 static void rt2560_scan_start(struct ieee80211com *);
117 static void rt2560_scan_end(struct ieee80211com *);
118 static void rt2560_set_channel(struct ieee80211com *);
119 static void rt2560_setup_tx_desc(struct rt2560_softc *,
120 struct rt2560_tx_desc *, uint32_t, int, int, int,
122 static int rt2560_tx_bcn(struct rt2560_softc *, struct mbuf *,
123 struct ieee80211_node *);
124 static int rt2560_tx_mgt(struct rt2560_softc *, struct mbuf *,
125 struct ieee80211_node *);
126 static int rt2560_tx_data(struct rt2560_softc *, struct mbuf *,
127 struct ieee80211_node *);
128 static void rt2560_start_locked(struct ifnet *);
129 static void rt2560_start(struct ifnet *, struct ifaltq_subque *);
130 static void rt2560_watchdog_callout(void *);
131 static int rt2560_ioctl(struct ifnet *, u_long, caddr_t,
133 static void rt2560_bbp_write(struct rt2560_softc *, uint8_t,
135 static uint8_t rt2560_bbp_read(struct rt2560_softc *, uint8_t);
136 static void rt2560_rf_write(struct rt2560_softc *, uint8_t,
138 static void rt2560_set_chan(struct rt2560_softc *,
139 struct ieee80211_channel *);
141 static void rt2560_disable_rf_tune(struct rt2560_softc *);
143 static void rt2560_enable_tsf_sync(struct rt2560_softc *);
144 static void rt2560_enable_tsf(struct rt2560_softc *);
145 static void rt2560_update_plcp(struct rt2560_softc *);
146 static void rt2560_update_slot(struct ieee80211com *);
147 static void rt2560_set_basicrates(struct rt2560_softc *);
148 static void rt2560_update_led(struct rt2560_softc *, int, int);
149 static void rt2560_set_bssid(struct rt2560_softc *, const uint8_t *);
150 static void rt2560_set_macaddr(struct rt2560_softc *, uint8_t *);
151 static void rt2560_get_macaddr(struct rt2560_softc *, uint8_t *);
152 static void rt2560_update_promisc(struct ieee80211com *);
153 static const char *rt2560_get_rf(int);
154 static void rt2560_read_config(struct rt2560_softc *);
155 static int rt2560_bbp_init(struct rt2560_softc *);
156 static void rt2560_set_txantenna(struct rt2560_softc *, int);
157 static void rt2560_set_rxantenna(struct rt2560_softc *, int);
158 static void rt2560_init_locked(struct rt2560_softc *);
159 static void rt2560_init(void *);
160 static void rt2560_stop_locked(struct rt2560_softc *);
161 static int rt2560_raw_xmit(struct ieee80211_node *, struct mbuf *,
162 const struct ieee80211_bpf_params *);
164 static const struct {
167 } rt2560_def_mac[] = {
171 static const struct {
174 } rt2560_def_bbp[] = {
178 static const uint32_t rt2560_rf2522_r2[] = RT2560_RF2522_R2;
179 static const uint32_t rt2560_rf2523_r2[] = RT2560_RF2523_R2;
180 static const uint32_t rt2560_rf2524_r2[] = RT2560_RF2524_R2;
181 static const uint32_t rt2560_rf2525_r2[] = RT2560_RF2525_R2;
182 static const uint32_t rt2560_rf2525_hi_r2[] = RT2560_RF2525_HI_R2;
183 static const uint32_t rt2560_rf2525e_r2[] = RT2560_RF2525E_R2;
184 static const uint32_t rt2560_rf2526_r2[] = RT2560_RF2526_R2;
185 static const uint32_t rt2560_rf2526_hi_r2[] = RT2560_RF2526_HI_R2;
187 static const struct {
190 } rt2560_rf5222[] = {
195 rt2560_attach(device_t dev, int id)
197 struct rt2560_softc *sc = device_get_softc(dev);
198 struct ieee80211com *ic;
202 uint8_t macaddr[IEEE80211_ADDR_LEN];
203 struct sysctl_ctx_list *ctx;
204 struct sysctl_oid *tree;
208 callout_init(&sc->watchdog_ch);
210 /* retrieve RT2560 rev. no */
211 sc->asic_rev = RAL_READ(sc, RT2560_CSR0);
213 /* retrieve RF rev. no and various other things from EEPROM */
214 rt2560_read_config(sc);
216 device_printf(dev, "MAC/BBP RT2560 (rev 0x%02x), RF %s\n",
217 sc->asic_rev, rt2560_get_rf(sc->rf_rev));
220 * Allocate Tx and Rx rings.
222 error = rt2560_alloc_tx_ring(sc, &sc->txq, RT2560_TX_RING_COUNT);
224 device_printf(sc->sc_dev, "could not allocate Tx ring\n");
228 error = rt2560_alloc_tx_ring(sc, &sc->atimq, RT2560_ATIM_RING_COUNT);
230 device_printf(sc->sc_dev, "could not allocate ATIM ring\n");
234 error = rt2560_alloc_tx_ring(sc, &sc->prioq, RT2560_PRIO_RING_COUNT);
236 device_printf(sc->sc_dev, "could not allocate Prio ring\n");
240 error = rt2560_alloc_tx_ring(sc, &sc->bcnq, RT2560_BEACON_RING_COUNT);
242 device_printf(sc->sc_dev, "could not allocate Beacon ring\n");
246 error = rt2560_alloc_rx_ring(sc, &sc->rxq, RT2560_RX_RING_COUNT);
248 device_printf(sc->sc_dev, "could not allocate Rx ring\n");
252 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
254 device_printf(sc->sc_dev, "can not if_alloc()\n");
259 /* retrieve MAC address */
260 rt2560_get_macaddr(sc, macaddr);
263 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
264 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
265 ifp->if_init = rt2560_init;
266 ifp->if_ioctl = rt2560_ioctl;
267 ifp->if_start = rt2560_start;
268 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
270 ifq_set_ready(&ifp->if_snd);
274 ic->ic_name = device_get_nameunit(dev);
275 ic->ic_opmode = IEEE80211_M_STA;
276 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
278 /* set device capabilities */
280 IEEE80211_C_STA /* station mode */
281 | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */
282 | IEEE80211_C_HOSTAP /* hostap mode */
283 | IEEE80211_C_MONITOR /* monitor mode */
284 | IEEE80211_C_AHDEMO /* adhoc demo mode */
285 | IEEE80211_C_WDS /* 4-address traffic works */
286 | IEEE80211_C_MBSS /* mesh point link mode */
287 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
288 | IEEE80211_C_SHSLOT /* short slot time supported */
289 | IEEE80211_C_WPA /* capable of WPA1+WPA2 */
290 | IEEE80211_C_BGSCAN /* capable of bg scanning */
292 | IEEE80211_C_TXFRAG /* handle tx frags */
297 setbit(&bands, IEEE80211_MODE_11B);
298 setbit(&bands, IEEE80211_MODE_11G);
299 if (sc->rf_rev == RT2560_RF_5222)
300 setbit(&bands, IEEE80211_MODE_11A);
301 ieee80211_init_channels(ic, NULL, &bands);
303 ieee80211_ifattach(ic, macaddr);
304 ic->ic_raw_xmit = rt2560_raw_xmit;
305 ic->ic_updateslot = rt2560_update_slot;
306 ic->ic_update_promisc = rt2560_update_promisc;
307 ic->ic_scan_start = rt2560_scan_start;
308 ic->ic_scan_end = rt2560_scan_end;
309 ic->ic_set_channel = rt2560_set_channel;
311 ic->ic_vap_create = rt2560_vap_create;
312 ic->ic_vap_delete = rt2560_vap_delete;
314 ieee80211_radiotap_attach(ic,
315 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
316 RT2560_TX_RADIOTAP_PRESENT,
317 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
318 RT2560_RX_RADIOTAP_PRESENT);
321 * Add a few sysctl knobs.
323 ctx = device_get_sysctl_ctx(sc->sc_dev);
324 tree = device_get_sysctl_tree(sc->sc_dev);
326 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
327 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs");
329 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
330 "txantenna", CTLFLAG_RW, &sc->tx_ant, 0, "tx antenna (0=auto)");
332 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
333 "rxantenna", CTLFLAG_RW, &sc->rx_ant, 0, "rx antenna (0=auto)");
336 ieee80211_announce(ic);
340 fail6: rt2560_free_rx_ring(sc, &sc->rxq);
341 fail5: rt2560_free_tx_ring(sc, &sc->bcnq);
342 fail4: rt2560_free_tx_ring(sc, &sc->prioq);
343 fail3: rt2560_free_tx_ring(sc, &sc->atimq);
344 fail2: rt2560_free_tx_ring(sc, &sc->txq);
351 rt2560_detach(void *xsc)
353 struct rt2560_softc *sc = xsc;
354 struct ifnet *ifp = sc->sc_ifp;
355 struct ieee80211com *ic = ifp->if_l2com;
359 ieee80211_ifdetach(ic);
361 rt2560_free_tx_ring(sc, &sc->txq);
362 rt2560_free_tx_ring(sc, &sc->atimq);
363 rt2560_free_tx_ring(sc, &sc->prioq);
364 rt2560_free_tx_ring(sc, &sc->bcnq);
365 rt2560_free_rx_ring(sc, &sc->rxq);
372 static struct ieee80211vap *
373 rt2560_vap_create(struct ieee80211com *ic,
374 const char name[IFNAMSIZ], int unit,
375 enum ieee80211_opmode opmode, int flags,
376 const uint8_t bssid[IEEE80211_ADDR_LEN],
377 const uint8_t mac[IEEE80211_ADDR_LEN])
379 struct ifnet *ifp = ic->ic_ifp;
380 struct rt2560_vap *rvp;
381 struct ieee80211vap *vap;
384 case IEEE80211_M_STA:
385 case IEEE80211_M_IBSS:
386 case IEEE80211_M_AHDEMO:
387 case IEEE80211_M_MONITOR:
388 case IEEE80211_M_HOSTAP:
389 case IEEE80211_M_MBSS:
391 if (!TAILQ_EMPTY(&ic->ic_vaps)) {
392 if_printf(ifp, "only 1 vap supported\n");
395 if (opmode == IEEE80211_M_STA)
396 flags |= IEEE80211_CLONE_NOBEACONS;
398 case IEEE80211_M_WDS:
399 if (TAILQ_EMPTY(&ic->ic_vaps) ||
400 ic->ic_opmode != IEEE80211_M_HOSTAP) {
401 if_printf(ifp, "wds only supported in ap mode\n");
405 * Silently remove any request for a unique
406 * bssid; WDS vap's always share the local
409 flags &= ~IEEE80211_CLONE_BSSID;
412 if_printf(ifp, "unknown opmode %d\n", opmode);
415 rvp = (struct rt2560_vap *) kmalloc(sizeof(struct rt2560_vap),
416 M_80211_VAP, M_INTWAIT | M_ZERO);
420 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
422 /* override state transition machine */
423 rvp->ral_newstate = vap->iv_newstate;
424 vap->iv_newstate = rt2560_newstate;
425 vap->iv_update_beacon = rt2560_beacon_update;
427 ieee80211_ratectl_init(vap);
429 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
430 if (TAILQ_FIRST(&ic->ic_vaps) == vap)
431 ic->ic_opmode = opmode;
436 rt2560_vap_delete(struct ieee80211vap *vap)
438 struct rt2560_vap *rvp = RT2560_VAP(vap);
440 ieee80211_ratectl_deinit(vap);
441 ieee80211_vap_detach(vap);
442 kfree(rvp, M_80211_VAP);
446 rt2560_resume(void *xsc)
448 struct rt2560_softc *sc = xsc;
449 struct ifnet *ifp = sc->sc_ifp;
451 if (ifp->if_flags & IFF_UP)
456 rt2560_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
461 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
463 *(bus_addr_t *)arg = segs[0].ds_addr;
467 rt2560_alloc_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring,
474 ring->cur = ring->next = 0;
475 ring->cur_encrypt = ring->next_encrypt = 0;
477 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
478 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
479 count * RT2560_TX_DESC_SIZE, 1, count * RT2560_TX_DESC_SIZE,
480 0, &ring->desc_dmat);
482 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
486 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
487 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
489 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
493 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
494 count * RT2560_TX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
497 device_printf(sc->sc_dev, "could not load desc DMA map\n");
501 ring->data = kmalloc(count * sizeof (struct rt2560_tx_data), M_DEVBUF,
503 if (ring->data == NULL) {
504 device_printf(sc->sc_dev, "could not allocate soft data\n");
509 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
510 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
511 MCLBYTES, RT2560_MAX_SCATTER, MCLBYTES, 0, &ring->data_dmat);
513 device_printf(sc->sc_dev, "could not create data DMA tag\n");
517 for (i = 0; i < count; i++) {
518 error = bus_dmamap_create(ring->data_dmat, 0,
521 device_printf(sc->sc_dev, "could not create DMA map\n");
528 fail: rt2560_free_tx_ring(sc, ring);
533 rt2560_reset_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
535 struct rt2560_tx_desc *desc;
536 struct rt2560_tx_data *data;
539 for (i = 0; i < ring->count; i++) {
540 desc = &ring->desc[i];
541 data = &ring->data[i];
543 if (data->m != NULL) {
544 bus_dmamap_sync(ring->data_dmat, data->map,
545 BUS_DMASYNC_POSTWRITE);
546 bus_dmamap_unload(ring->data_dmat, data->map);
551 if (data->ni != NULL) {
552 ieee80211_free_node(data->ni);
559 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
562 ring->cur = ring->next = 0;
563 ring->cur_encrypt = ring->next_encrypt = 0;
567 rt2560_free_tx_ring(struct rt2560_softc *sc, struct rt2560_tx_ring *ring)
569 struct rt2560_tx_data *data;
572 if (ring->desc != NULL) {
573 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
574 BUS_DMASYNC_POSTWRITE);
575 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
576 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
579 if (ring->desc_dmat != NULL)
580 bus_dma_tag_destroy(ring->desc_dmat);
582 if (ring->data != NULL) {
583 for (i = 0; i < ring->count; i++) {
584 data = &ring->data[i];
586 if (data->m != NULL) {
587 bus_dmamap_sync(ring->data_dmat, data->map,
588 BUS_DMASYNC_POSTWRITE);
589 bus_dmamap_unload(ring->data_dmat, data->map);
593 if (data->ni != NULL)
594 ieee80211_free_node(data->ni);
596 if (data->map != NULL)
597 bus_dmamap_destroy(ring->data_dmat, data->map);
600 kfree(ring->data, M_DEVBUF);
603 if (ring->data_dmat != NULL)
604 bus_dma_tag_destroy(ring->data_dmat);
608 rt2560_alloc_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring,
611 struct rt2560_rx_desc *desc;
612 struct rt2560_rx_data *data;
617 ring->cur = ring->next = 0;
618 ring->cur_decrypt = 0;
620 error = bus_dma_tag_create(ring->desc_dmat, 4, 0,
621 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
622 count * RT2560_RX_DESC_SIZE, 1, count * RT2560_RX_DESC_SIZE,
623 0, &ring->desc_dmat);
625 device_printf(sc->sc_dev, "could not create desc DMA tag\n");
629 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc,
630 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map);
632 device_printf(sc->sc_dev, "could not allocate DMA memory\n");
636 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc,
637 count * RT2560_RX_DESC_SIZE, rt2560_dma_map_addr, &ring->physaddr,
640 device_printf(sc->sc_dev, "could not load desc DMA map\n");
644 ring->data = kmalloc(count * sizeof (struct rt2560_rx_data), M_DEVBUF,
646 if (ring->data == NULL) {
647 device_printf(sc->sc_dev, "could not allocate soft data\n");
653 * Pre-allocate Rx buffers and populate Rx ring.
655 error = bus_dma_tag_create(ring->data_dmat, 1, 0,
656 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES,
657 1, MCLBYTES, 0, &ring->data_dmat);
659 device_printf(sc->sc_dev, "could not create data DMA tag\n");
663 for (i = 0; i < count; i++) {
664 desc = &sc->rxq.desc[i];
665 data = &sc->rxq.data[i];
667 error = bus_dmamap_create(ring->data_dmat, 0, &data->map);
669 device_printf(sc->sc_dev, "could not create DMA map\n");
673 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
674 if (data->m == NULL) {
675 device_printf(sc->sc_dev,
676 "could not allocate rx mbuf\n");
681 error = bus_dmamap_load(ring->data_dmat, data->map,
682 mtod(data->m, void *), MCLBYTES, rt2560_dma_map_addr,
685 device_printf(sc->sc_dev,
686 "could not load rx buf DMA map");
690 desc->flags = htole32(RT2560_RX_BUSY);
691 desc->physaddr = htole32(physaddr);
694 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
698 fail: rt2560_free_rx_ring(sc, ring);
703 rt2560_reset_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
707 for (i = 0; i < ring->count; i++) {
708 ring->desc[i].flags = htole32(RT2560_RX_BUSY);
709 ring->data[i].drop = 0;
712 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE);
714 ring->cur = ring->next = 0;
715 ring->cur_decrypt = 0;
719 rt2560_free_rx_ring(struct rt2560_softc *sc, struct rt2560_rx_ring *ring)
721 struct rt2560_rx_data *data;
724 if (ring->desc != NULL) {
725 bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
726 BUS_DMASYNC_POSTWRITE);
727 bus_dmamap_unload(ring->desc_dmat, ring->desc_map);
728 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map);
731 if (ring->desc_dmat != NULL)
732 bus_dma_tag_destroy(ring->desc_dmat);
734 if (ring->data != NULL) {
735 for (i = 0; i < ring->count; i++) {
736 data = &ring->data[i];
738 if (data->m != NULL) {
739 bus_dmamap_sync(ring->data_dmat, data->map,
740 BUS_DMASYNC_POSTREAD);
741 bus_dmamap_unload(ring->data_dmat, data->map);
745 if (data->map != NULL)
746 bus_dmamap_destroy(ring->data_dmat, data->map);
749 kfree(ring->data, M_DEVBUF);
752 if (ring->data_dmat != NULL)
753 bus_dma_tag_destroy(ring->data_dmat);
757 rt2560_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
759 struct rt2560_vap *rvp = RT2560_VAP(vap);
760 struct ifnet *ifp = vap->iv_ic->ic_ifp;
761 struct rt2560_softc *sc = ifp->if_softc;
764 if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) {
765 /* abort TSF synchronization */
766 RAL_WRITE(sc, RT2560_CSR14, 0);
768 /* turn association led off */
769 rt2560_update_led(sc, 0, 0);
772 error = rvp->ral_newstate(vap, nstate, arg);
774 if (error == 0 && nstate == IEEE80211_S_RUN) {
775 struct ieee80211_node *ni = vap->iv_bss;
778 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
779 rt2560_update_plcp(sc);
780 rt2560_set_basicrates(sc);
781 rt2560_set_bssid(sc, ni->ni_bssid);
784 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
785 vap->iv_opmode == IEEE80211_M_IBSS ||
786 vap->iv_opmode == IEEE80211_M_MBSS) {
787 m = ieee80211_beacon_alloc(ni, &rvp->ral_bo);
789 if_printf(ifp, "could not allocate beacon\n");
792 ieee80211_ref_node(ni);
793 error = rt2560_tx_bcn(sc, m, ni);
798 /* turn assocation led on */
799 rt2560_update_led(sc, 1, 0);
801 if (vap->iv_opmode != IEEE80211_M_MONITOR)
802 rt2560_enable_tsf_sync(sc);
804 rt2560_enable_tsf(sc);
810 * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or
814 rt2560_eeprom_read(struct rt2560_softc *sc, uint8_t addr)
820 /* clock C once before the first command */
821 RT2560_EEPROM_CTL(sc, 0);
823 RT2560_EEPROM_CTL(sc, RT2560_S);
824 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
825 RT2560_EEPROM_CTL(sc, RT2560_S);
827 /* write start bit (1) */
828 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
829 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
831 /* write READ opcode (10) */
832 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D);
833 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_D | RT2560_C);
834 RT2560_EEPROM_CTL(sc, RT2560_S);
835 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
837 /* write address (A5-A0 or A7-A0) */
838 n = (RAL_READ(sc, RT2560_CSR21) & RT2560_93C46) ? 5 : 7;
839 for (; n >= 0; n--) {
840 RT2560_EEPROM_CTL(sc, RT2560_S |
841 (((addr >> n) & 1) << RT2560_SHIFT_D));
842 RT2560_EEPROM_CTL(sc, RT2560_S |
843 (((addr >> n) & 1) << RT2560_SHIFT_D) | RT2560_C);
846 RT2560_EEPROM_CTL(sc, RT2560_S);
848 /* read data Q15-Q0 */
850 for (n = 15; n >= 0; n--) {
851 RT2560_EEPROM_CTL(sc, RT2560_S | RT2560_C);
852 tmp = RAL_READ(sc, RT2560_CSR21);
853 val |= ((tmp & RT2560_Q) >> RT2560_SHIFT_Q) << n;
854 RT2560_EEPROM_CTL(sc, RT2560_S);
857 RT2560_EEPROM_CTL(sc, 0);
859 /* clear Chip Select and clock C */
860 RT2560_EEPROM_CTL(sc, RT2560_S);
861 RT2560_EEPROM_CTL(sc, 0);
862 RT2560_EEPROM_CTL(sc, RT2560_C);
868 * Some frames were processed by the hardware cipher engine and are ready for
872 rt2560_encryption_intr(struct rt2560_softc *sc)
874 struct rt2560_tx_desc *desc;
877 /* retrieve last descriptor index processed by cipher engine */
878 hw = RAL_READ(sc, RT2560_SECCSR1) - sc->txq.physaddr;
879 hw /= RT2560_TX_DESC_SIZE;
881 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
882 BUS_DMASYNC_POSTREAD);
884 while (sc->txq.next_encrypt != hw) {
885 if (sc->txq.next_encrypt == sc->txq.cur_encrypt) {
886 kprintf("hw encrypt %d, cur_encrypt %d\n", hw,
887 sc->txq.cur_encrypt);
891 desc = &sc->txq.desc[sc->txq.next_encrypt];
893 if ((le32toh(desc->flags) & RT2560_TX_BUSY) ||
894 (le32toh(desc->flags) & RT2560_TX_CIPHER_BUSY))
897 /* for TKIP, swap eiv field to fix a bug in ASIC */
898 if ((le32toh(desc->flags) & RT2560_TX_CIPHER_MASK) ==
899 RT2560_TX_CIPHER_TKIP)
900 desc->eiv = bswap32(desc->eiv);
902 /* mark the frame ready for transmission */
903 desc->flags |= htole32(RT2560_TX_VALID);
904 desc->flags |= htole32(RT2560_TX_BUSY);
906 DPRINTFN(sc, 15, "encryption done idx=%u\n",
907 sc->txq.next_encrypt);
909 sc->txq.next_encrypt =
910 (sc->txq.next_encrypt + 1) % RT2560_TX_RING_COUNT;
913 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
914 BUS_DMASYNC_PREWRITE);
917 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_TX);
921 rt2560_tx_intr(struct rt2560_softc *sc)
923 struct ifnet *ifp = sc->sc_ifp;
924 struct rt2560_tx_desc *desc;
925 struct rt2560_tx_data *data;
929 struct ieee80211vap *vap;
930 struct ieee80211_node *ni;
932 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
933 BUS_DMASYNC_POSTREAD);
936 desc = &sc->txq.desc[sc->txq.next];
937 data = &sc->txq.data[sc->txq.next];
939 flags = le32toh(desc->flags);
940 if ((flags & RT2560_TX_BUSY) ||
941 (flags & RT2560_TX_CIPHER_BUSY) ||
942 !(flags & RT2560_TX_VALID))
949 switch (flags & RT2560_TX_RESULT_MASK) {
950 case RT2560_TX_SUCCESS:
953 DPRINTFN(sc, 10, "%s\n", "data frame sent successfully");
954 if (data->rix != IEEE80211_FIXED_RATE_NONE)
955 ieee80211_ratectl_tx_complete(vap, ni,
956 IEEE80211_RATECTL_TX_SUCCESS,
958 IFNET_STAT_INC(ifp, opackets, 1);
961 case RT2560_TX_SUCCESS_RETRY:
962 retrycnt = RT2560_TX_RETRYCNT(flags);
964 DPRINTFN(sc, 9, "data frame sent after %u retries\n",
966 if (data->rix != IEEE80211_FIXED_RATE_NONE)
967 ieee80211_ratectl_tx_complete(vap, ni,
968 IEEE80211_RATECTL_TX_SUCCESS,
970 IFNET_STAT_INC(ifp, opackets, 1);
973 case RT2560_TX_FAIL_RETRY:
974 retrycnt = RT2560_TX_RETRYCNT(flags);
976 DPRINTFN(sc, 9, "data frame failed after %d retries\n",
978 if (data->rix != IEEE80211_FIXED_RATE_NONE)
979 ieee80211_ratectl_tx_complete(vap, ni,
980 IEEE80211_RATECTL_TX_FAILURE,
982 IFNET_STAT_INC(ifp, oerrors, 1);
985 case RT2560_TX_FAIL_INVALID:
986 case RT2560_TX_FAIL_OTHER:
988 device_printf(sc->sc_dev, "sending data frame failed "
990 IFNET_STAT_INC(ifp, oerrors, 1);
993 bus_dmamap_sync(sc->txq.data_dmat, data->map,
994 BUS_DMASYNC_POSTWRITE);
995 bus_dmamap_unload(sc->txq.data_dmat, data->map);
998 ieee80211_free_node(data->ni);
1002 /* descriptor is no longer valid */
1003 desc->flags &= ~htole32(RT2560_TX_VALID);
1005 DPRINTFN(sc, 15, "tx done idx=%u\n", sc->txq.next);
1008 sc->txq.next = (sc->txq.next + 1) % RT2560_TX_RING_COUNT;
1011 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1012 BUS_DMASYNC_PREWRITE);
1014 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1015 sc->sc_tx_timer = 0;
1017 if (sc->txq.queued < RT2560_TX_RING_COUNT - 1) {
1018 sc->sc_flags &= ~RT2560_F_DATA_OACTIVE;
1020 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1021 ifq_clr_oactive(&ifp->if_snd);
1022 rt2560_start_locked(ifp);
1027 rt2560_prio_intr(struct rt2560_softc *sc)
1029 struct ifnet *ifp = sc->sc_ifp;
1030 struct rt2560_tx_desc *desc;
1031 struct rt2560_tx_data *data;
1032 struct ieee80211_node *ni;
1036 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1037 BUS_DMASYNC_POSTREAD);
1040 desc = &sc->prioq.desc[sc->prioq.next];
1041 data = &sc->prioq.data[sc->prioq.next];
1043 flags = le32toh(desc->flags);
1044 if ((flags & RT2560_TX_BUSY) || (flags & RT2560_TX_VALID) == 0)
1047 switch (flags & RT2560_TX_RESULT_MASK) {
1048 case RT2560_TX_SUCCESS:
1049 DPRINTFN(sc, 10, "%s\n", "mgt frame sent successfully");
1052 case RT2560_TX_SUCCESS_RETRY:
1053 DPRINTFN(sc, 9, "mgt frame sent after %u retries\n",
1054 (flags >> 5) & 0x7);
1057 case RT2560_TX_FAIL_RETRY:
1058 DPRINTFN(sc, 9, "%s\n",
1059 "sending mgt frame failed (too much retries)");
1062 case RT2560_TX_FAIL_INVALID:
1063 case RT2560_TX_FAIL_OTHER:
1065 device_printf(sc->sc_dev, "sending mgt frame failed "
1070 bus_dmamap_sync(sc->prioq.data_dmat, data->map,
1071 BUS_DMASYNC_POSTWRITE);
1072 bus_dmamap_unload(sc->prioq.data_dmat, data->map);
1079 /* descriptor is no longer valid */
1080 desc->flags &= ~htole32(RT2560_TX_VALID);
1082 DPRINTFN(sc, 15, "prio done idx=%u\n", sc->prioq.next);
1085 sc->prioq.next = (sc->prioq.next + 1) % RT2560_PRIO_RING_COUNT;
1087 if (m->m_flags & M_TXCB)
1088 ieee80211_process_callback(ni, m,
1089 (flags & RT2560_TX_RESULT_MASK) &~
1090 (RT2560_TX_SUCCESS | RT2560_TX_SUCCESS_RETRY));
1092 ieee80211_free_node(ni);
1095 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1096 BUS_DMASYNC_PREWRITE);
1098 if (sc->prioq.queued == 0 && sc->txq.queued == 0)
1099 sc->sc_tx_timer = 0;
1101 if (sc->prioq.queued < RT2560_PRIO_RING_COUNT) {
1102 sc->sc_flags &= ~RT2560_F_PRIO_OACTIVE;
1104 (RT2560_F_DATA_OACTIVE | RT2560_F_PRIO_OACTIVE)) == 0)
1105 ifq_clr_oactive(&ifp->if_snd);
1106 rt2560_start_locked(ifp);
1111 * Some frames were processed by the hardware cipher engine and are ready for
1112 * handoff to the IEEE802.11 layer.
1115 rt2560_decryption_intr(struct rt2560_softc *sc)
1117 struct ifnet *ifp = sc->sc_ifp;
1118 struct ieee80211com *ic = ifp->if_l2com;
1119 struct rt2560_rx_desc *desc;
1120 struct rt2560_rx_data *data;
1121 bus_addr_t physaddr;
1122 struct ieee80211_frame *wh;
1123 struct ieee80211_node *ni;
1124 struct mbuf *mnew, *m;
1128 /* retrieve last decriptor index processed by cipher engine */
1129 hw = RAL_READ(sc, RT2560_SECCSR0) - sc->rxq.physaddr;
1130 hw /= RT2560_RX_DESC_SIZE;
1132 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1133 BUS_DMASYNC_POSTREAD);
1135 for (; sc->rxq.cur_decrypt != hw;) {
1136 desc = &sc->rxq.desc[sc->rxq.cur_decrypt];
1137 data = &sc->rxq.data[sc->rxq.cur_decrypt];
1139 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1140 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1144 IFNET_STAT_INC(ifp, ierrors, 1);
1148 if ((le32toh(desc->flags) & RT2560_RX_CIPHER_MASK) != 0 &&
1149 (le32toh(desc->flags) & RT2560_RX_ICV_ERROR)) {
1150 IFNET_STAT_INC(ifp, ierrors, 1);
1155 * Try to allocate a new mbuf for this ring element and load it
1156 * before processing the current mbuf. If the ring element
1157 * cannot be loaded, drop the received packet and reuse the old
1158 * mbuf. In the unlikely case that the old mbuf can't be
1159 * reloaded either, explicitly panic.
1161 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1163 IFNET_STAT_INC(ifp, ierrors, 1);
1167 bus_dmamap_sync(sc->rxq.data_dmat, data->map,
1168 BUS_DMASYNC_POSTREAD);
1169 bus_dmamap_unload(sc->rxq.data_dmat, data->map);
1171 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1172 mtod(mnew, void *), MCLBYTES, rt2560_dma_map_addr,
1177 /* try to reload the old mbuf */
1178 error = bus_dmamap_load(sc->rxq.data_dmat, data->map,
1179 mtod(data->m, void *), MCLBYTES,
1180 rt2560_dma_map_addr, &physaddr, 0);
1182 /* very unlikely that it will fail... */
1183 panic("%s: could not load old rx mbuf",
1184 device_get_name(sc->sc_dev));
1186 IFNET_STAT_INC(ifp, ierrors, 1);
1191 * New mbuf successfully loaded, update Rx ring and continue
1196 desc->physaddr = htole32(physaddr);
1199 m->m_pkthdr.rcvif = ifp;
1200 m->m_pkthdr.len = m->m_len =
1201 (le32toh(desc->flags) >> 16) & 0xfff;
1203 rssi = RT2560_RSSI(sc, desc->rssi);
1204 nf = RT2560_NOISE_FLOOR;
1205 if (ieee80211_radiotap_active(ic)) {
1206 struct rt2560_rx_radiotap_header *tap = &sc->sc_rxtap;
1207 uint32_t tsf_lo, tsf_hi;
1209 /* get timestamp (low and high 32 bits) */
1210 tsf_hi = RAL_READ(sc, RT2560_CSR17);
1211 tsf_lo = RAL_READ(sc, RT2560_CSR16);
1214 htole64(((uint64_t)tsf_hi << 32) | tsf_lo);
1216 tap->wr_rate = ieee80211_plcp2rate(desc->rate,
1217 (desc->flags & htole32(RT2560_RX_OFDM)) ?
1218 IEEE80211_T_OFDM : IEEE80211_T_CCK);
1219 tap->wr_antenna = sc->rx_ant;
1220 tap->wr_antsignal = nf + rssi;
1221 tap->wr_antnoise = nf;
1224 sc->sc_flags |= RT2560_F_INPUT_RUNNING;
1225 wh = mtod(m, struct ieee80211_frame *);
1226 ni = ieee80211_find_rxnode(ic,
1227 (struct ieee80211_frame_min *)wh);
1229 (void) ieee80211_input(ni, m, rssi, nf);
1230 ieee80211_free_node(ni);
1232 (void) ieee80211_input_all(ic, m, rssi, nf);
1234 sc->sc_flags &= ~RT2560_F_INPUT_RUNNING;
1235 skip: desc->flags = htole32(RT2560_RX_BUSY);
1237 DPRINTFN(sc, 15, "decryption done idx=%u\n", sc->rxq.cur_decrypt);
1239 sc->rxq.cur_decrypt =
1240 (sc->rxq.cur_decrypt + 1) % RT2560_RX_RING_COUNT;
1243 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1244 BUS_DMASYNC_PREWRITE);
1248 * Some frames were received. Pass them to the hardware cipher engine before
1249 * sending them to the 802.11 layer.
1252 rt2560_rx_intr(struct rt2560_softc *sc)
1254 struct rt2560_rx_desc *desc;
1255 struct rt2560_rx_data *data;
1257 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1258 BUS_DMASYNC_POSTREAD);
1261 desc = &sc->rxq.desc[sc->rxq.cur];
1262 data = &sc->rxq.data[sc->rxq.cur];
1264 if ((le32toh(desc->flags) & RT2560_RX_BUSY) ||
1265 (le32toh(desc->flags) & RT2560_RX_CIPHER_BUSY))
1270 if ((le32toh(desc->flags) & RT2560_RX_PHY_ERROR) ||
1271 (le32toh(desc->flags) & RT2560_RX_CRC_ERROR)) {
1273 * This should not happen since we did not request
1274 * to receive those frames when we filled RXCSR0.
1276 DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n",
1277 le32toh(desc->flags));
1281 if (((le32toh(desc->flags) >> 16) & 0xfff) > MCLBYTES) {
1282 DPRINTFN(sc, 5, "%s\n", "bad length");
1286 /* mark the frame for decryption */
1287 desc->flags |= htole32(RT2560_RX_CIPHER_BUSY);
1289 DPRINTFN(sc, 15, "rx done idx=%u\n", sc->rxq.cur);
1291 sc->rxq.cur = (sc->rxq.cur + 1) % RT2560_RX_RING_COUNT;
1294 bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map,
1295 BUS_DMASYNC_PREWRITE);
1298 RAL_WRITE(sc, RT2560_SECCSR0, RT2560_KICK_DECRYPT);
1302 rt2560_beacon_update(struct ieee80211vap *vap, int item)
1304 struct rt2560_vap *rvp = RT2560_VAP(vap);
1305 struct ieee80211_beacon_offsets *bo = &rvp->ral_bo;
1307 setbit(bo->bo_flags, item);
1311 * This function is called periodically in IBSS mode when a new beacon must be
1315 rt2560_beacon_expire(struct rt2560_softc *sc)
1317 struct ifnet *ifp = sc->sc_ifp;
1318 struct ieee80211com *ic = ifp->if_l2com;
1319 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1320 struct rt2560_vap *rvp = RT2560_VAP(vap);
1321 struct rt2560_tx_data *data;
1323 if (ic->ic_opmode != IEEE80211_M_IBSS &&
1324 ic->ic_opmode != IEEE80211_M_HOSTAP &&
1325 ic->ic_opmode != IEEE80211_M_MBSS)
1328 data = &sc->bcnq.data[sc->bcnq.next];
1330 * Don't send beacon if bsschan isn't set
1332 if (data->ni == NULL)
1335 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
1336 bus_dmamap_unload(sc->bcnq.data_dmat, data->map);
1338 /* XXX 1 =>'s mcast frames which means all PS sta's will wakeup! */
1339 ieee80211_beacon_update(data->ni, &rvp->ral_bo, data->m, 1);
1341 rt2560_tx_bcn(sc, data->m, data->ni);
1343 DPRINTFN(sc, 15, "%s", "beacon expired\n");
1345 sc->bcnq.next = (sc->bcnq.next + 1) % RT2560_BEACON_RING_COUNT;
1350 rt2560_wakeup_expire(struct rt2560_softc *sc)
1352 DPRINTFN(sc, 2, "%s", "wakeup expired\n");
1356 rt2560_intr(void *arg)
1358 struct rt2560_softc *sc = arg;
1359 struct ifnet *ifp = sc->sc_ifp;
1362 /* disable interrupts */
1363 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
1365 /* don't re-enable interrupts if we're shutting down */
1366 if (!(ifp->if_flags & IFF_RUNNING)) {
1370 r = RAL_READ(sc, RT2560_CSR7);
1371 RAL_WRITE(sc, RT2560_CSR7, r);
1373 if (r & RT2560_BEACON_EXPIRE)
1374 rt2560_beacon_expire(sc);
1376 if (r & RT2560_WAKEUP_EXPIRE)
1377 rt2560_wakeup_expire(sc);
1379 if (r & RT2560_ENCRYPTION_DONE)
1380 rt2560_encryption_intr(sc);
1382 if (r & RT2560_TX_DONE)
1385 if (r & RT2560_PRIO_DONE)
1386 rt2560_prio_intr(sc);
1388 if (r & RT2560_DECRYPTION_DONE)
1389 rt2560_decryption_intr(sc);
1391 if (r & RT2560_RX_DONE) {
1393 rt2560_encryption_intr(sc);
1396 /* re-enable interrupts */
1397 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
1400 #define RAL_SIFS 10 /* us */
1402 #define RT2560_TXRX_TURNAROUND 10 /* us */
1405 rt2560_plcp_signal(int rate)
1408 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1409 case 12: return 0xb;
1410 case 18: return 0xf;
1411 case 24: return 0xa;
1412 case 36: return 0xe;
1413 case 48: return 0x9;
1414 case 72: return 0xd;
1415 case 96: return 0x8;
1416 case 108: return 0xc;
1418 /* CCK rates (NB: not IEEE std, device-specific) */
1421 case 11: return 0x2;
1422 case 22: return 0x3;
1424 return 0xff; /* XXX unsupported/unknown rate */
1428 rt2560_setup_tx_desc(struct rt2560_softc *sc, struct rt2560_tx_desc *desc,
1429 uint32_t flags, int len, int rate, int encrypt, bus_addr_t physaddr)
1431 struct ifnet *ifp = sc->sc_ifp;
1432 struct ieee80211com *ic = ifp->if_l2com;
1433 uint16_t plcp_length;
1436 desc->flags = htole32(flags);
1437 desc->flags |= htole32(len << 16);
1439 desc->physaddr = htole32(physaddr);
1440 desc->wme = htole16(
1442 RT2560_LOGCWMIN(3) |
1443 RT2560_LOGCWMAX(8));
1445 /* setup PLCP fields */
1446 desc->plcp_signal = rt2560_plcp_signal(rate);
1447 desc->plcp_service = 4;
1449 len += IEEE80211_CRC_LEN;
1450 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1451 desc->flags |= htole32(RT2560_TX_OFDM);
1453 plcp_length = len & 0xfff;
1454 desc->plcp_length_hi = plcp_length >> 6;
1455 desc->plcp_length_lo = plcp_length & 0x3f;
1457 plcp_length = (16 * len + rate - 1) / rate;
1459 remainder = (16 * len) % 22;
1460 if (remainder != 0 && remainder < 7)
1461 desc->plcp_service |= RT2560_PLCP_LENGEXT;
1463 desc->plcp_length_hi = plcp_length >> 8;
1464 desc->plcp_length_lo = plcp_length & 0xff;
1466 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1467 desc->plcp_signal |= 0x08;
1471 desc->flags |= htole32(RT2560_TX_VALID);
1472 desc->flags |= encrypt ? htole32(RT2560_TX_CIPHER_BUSY)
1473 : htole32(RT2560_TX_BUSY);
1477 rt2560_tx_bcn(struct rt2560_softc *sc, struct mbuf *m0,
1478 struct ieee80211_node *ni)
1480 struct ieee80211vap *vap = ni->ni_vap;
1481 struct rt2560_tx_desc *desc;
1482 struct rt2560_tx_data *data;
1483 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1484 int nsegs, rate, error;
1486 desc = &sc->bcnq.desc[sc->bcnq.cur];
1487 data = &sc->bcnq.data[sc->bcnq.cur];
1489 /* XXX maybe a separate beacon rate? */
1490 rate = vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)].mgmtrate;
1492 error = bus_dmamap_load_mbuf_segment(sc->bcnq.data_dmat, data->map, m0,
1493 segs, 1, &nsegs, BUS_DMA_NOWAIT);
1495 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1501 if (ieee80211_radiotap_active_vap(vap)) {
1502 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1505 tap->wt_rate = rate;
1506 tap->wt_antenna = sc->tx_ant;
1508 ieee80211_radiotap_tx(vap, m0);
1514 rt2560_setup_tx_desc(sc, desc, RT2560_TX_IFS_NEWBACKOFF |
1515 RT2560_TX_TIMESTAMP, m0->m_pkthdr.len, rate, 0, segs->ds_addr);
1517 DPRINTFN(sc, 10, "sending beacon frame len=%u idx=%u rate=%u\n",
1518 m0->m_pkthdr.len, sc->bcnq.cur, rate);
1520 bus_dmamap_sync(sc->bcnq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1521 bus_dmamap_sync(sc->bcnq.desc_dmat, sc->bcnq.desc_map,
1522 BUS_DMASYNC_PREWRITE);
1524 sc->bcnq.cur = (sc->bcnq.cur + 1) % RT2560_BEACON_RING_COUNT;
1530 rt2560_tx_mgt(struct rt2560_softc *sc, struct mbuf *m0,
1531 struct ieee80211_node *ni)
1533 struct ieee80211vap *vap = ni->ni_vap;
1534 struct ieee80211com *ic = ni->ni_ic;
1535 struct rt2560_tx_desc *desc;
1536 struct rt2560_tx_data *data;
1537 struct ieee80211_frame *wh;
1538 struct ieee80211_key *k;
1539 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1542 int nsegs, rate, error;
1544 desc = &sc->prioq.desc[sc->prioq.cur];
1545 data = &sc->prioq.data[sc->prioq.cur];
1547 rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate;
1549 wh = mtod(m0, struct ieee80211_frame *);
1551 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1552 k = ieee80211_crypto_encap(ni, m0);
1559 error = bus_dmamap_load_mbuf_segment(sc->prioq.data_dmat, data->map, m0,
1560 segs, 1, &nsegs, 0);
1562 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1568 if (ieee80211_radiotap_active_vap(vap)) {
1569 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1572 tap->wt_rate = rate;
1573 tap->wt_antenna = sc->tx_ant;
1575 ieee80211_radiotap_tx(vap, m0);
1580 /* management frames are not taken into account for amrr */
1581 data->rix = IEEE80211_FIXED_RATE_NONE;
1583 wh = mtod(m0, struct ieee80211_frame *);
1585 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1586 flags |= RT2560_TX_ACK;
1588 dur = ieee80211_ack_duration(ic->ic_rt,
1589 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1590 *(uint16_t *)wh->i_dur = htole16(dur);
1592 /* tell hardware to add timestamp for probe responses */
1593 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
1594 IEEE80211_FC0_TYPE_MGT &&
1595 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1596 IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1597 flags |= RT2560_TX_TIMESTAMP;
1600 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 0,
1603 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1604 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1605 BUS_DMASYNC_PREWRITE);
1607 DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n",
1608 m0->m_pkthdr.len, sc->prioq.cur, rate);
1612 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1613 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1619 rt2560_sendprot(struct rt2560_softc *sc,
1620 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1622 struct ieee80211com *ic = ni->ni_ic;
1623 const struct ieee80211_frame *wh;
1624 struct rt2560_tx_desc *desc;
1625 struct rt2560_tx_data *data;
1627 int protrate, pktlen, flags, isshort, error;
1629 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1632 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1633 ("protection %d", prot));
1635 wh = mtod(m, const struct ieee80211_frame *);
1636 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1638 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1639 ieee80211_ack_rate(ic->ic_rt, rate);
1641 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1642 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1643 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1644 flags = RT2560_TX_MORE_FRAG;
1645 if (prot == IEEE80211_PROT_RTSCTS) {
1646 /* NB: CTS is the same size as an ACK */
1647 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1648 flags |= RT2560_TX_ACK;
1649 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1651 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1653 if (mprot == NULL) {
1654 /* XXX stat + msg */
1658 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1659 data = &sc->txq.data[sc->txq.cur_encrypt];
1661 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map,
1662 mprot, segs, 1, &nsegs, 0);
1664 device_printf(sc->sc_dev,
1665 "could not map mbuf (error %d)\n", error);
1671 data->ni = ieee80211_ref_node(ni);
1672 /* ctl frames are not taken into account for amrr */
1673 data->rix = IEEE80211_FIXED_RATE_NONE;
1675 rt2560_setup_tx_desc(sc, desc, flags, mprot->m_pkthdr.len, protrate, 1,
1678 bus_dmamap_sync(sc->txq.data_dmat, data->map,
1679 BUS_DMASYNC_PREWRITE);
1682 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1688 rt2560_tx_raw(struct rt2560_softc *sc, struct mbuf *m0,
1689 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params)
1691 struct ieee80211vap *vap = ni->ni_vap;
1692 struct ieee80211com *ic = ni->ni_ic;
1693 struct rt2560_tx_desc *desc;
1694 struct rt2560_tx_data *data;
1695 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1697 int nsegs, rate, error;
1699 desc = &sc->prioq.desc[sc->prioq.cur];
1700 data = &sc->prioq.data[sc->prioq.cur];
1702 rate = params->ibp_rate0;
1703 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1704 /* XXX fall back to mcast/mgmt rate? */
1710 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1711 flags |= RT2560_TX_ACK;
1712 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1713 error = rt2560_sendprot(sc, m0, ni,
1714 params->ibp_flags & IEEE80211_BPF_RTS ?
1715 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1721 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1724 error = bus_dmamap_load_mbuf_segment(sc->prioq.data_dmat, data->map, m0,
1725 segs, 1, &nsegs, 0);
1727 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1733 if (ieee80211_radiotap_active_vap(vap)) {
1734 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1737 tap->wt_rate = rate;
1738 tap->wt_antenna = sc->tx_ant;
1740 ieee80211_radiotap_tx(ni->ni_vap, m0);
1746 /* XXX need to setup descriptor ourself */
1747 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len,
1748 rate, (params->ibp_flags & IEEE80211_BPF_CRYPTO) != 0,
1751 bus_dmamap_sync(sc->prioq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1752 bus_dmamap_sync(sc->prioq.desc_dmat, sc->prioq.desc_map,
1753 BUS_DMASYNC_PREWRITE);
1755 DPRINTFN(sc, 10, "sending raw frame len=%u idx=%u rate=%u\n",
1756 m0->m_pkthdr.len, sc->prioq.cur, rate);
1760 sc->prioq.cur = (sc->prioq.cur + 1) % RT2560_PRIO_RING_COUNT;
1761 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_KICK_PRIO);
1767 rt2560_tx_data(struct rt2560_softc *sc, struct mbuf *m0,
1768 struct ieee80211_node *ni)
1770 struct ieee80211vap *vap = ni->ni_vap;
1771 struct ieee80211com *ic = ni->ni_ic;
1772 struct rt2560_tx_desc *desc;
1773 struct rt2560_tx_data *data;
1774 struct ieee80211_frame *wh;
1775 const struct ieee80211_txparam *tp;
1776 struct ieee80211_key *k;
1778 bus_dma_segment_t segs[RT2560_MAX_SCATTER];
1781 int nsegs, rate, error;
1783 wh = mtod(m0, struct ieee80211_frame *);
1785 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1786 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1787 rate = tp->mcastrate;
1788 } else if (m0->m_flags & M_EAPOL) {
1789 rate = tp->mgmtrate;
1790 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1791 rate = tp->ucastrate;
1793 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1794 rate = ni->ni_txrate;
1797 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1798 k = ieee80211_crypto_encap(ni, m0);
1804 /* packet header may have moved, reset our local pointer */
1805 wh = mtod(m0, struct ieee80211_frame *);
1809 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1810 int prot = IEEE80211_PROT_NONE;
1811 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1812 prot = IEEE80211_PROT_RTSCTS;
1813 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1814 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1815 prot = ic->ic_protmode;
1816 if (prot != IEEE80211_PROT_NONE) {
1817 error = rt2560_sendprot(sc, m0, ni, prot, rate);
1822 flags |= RT2560_TX_LONG_RETRY | RT2560_TX_IFS_SIFS;
1826 data = &sc->txq.data[sc->txq.cur_encrypt];
1827 desc = &sc->txq.desc[sc->txq.cur_encrypt];
1829 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map, m0,
1830 segs, 1, &nsegs, 0);
1831 if (error != 0 && error != EFBIG) {
1832 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n",
1838 mnew = m_defrag(m0, M_NOWAIT);
1840 device_printf(sc->sc_dev,
1841 "could not defragment mbuf\n");
1847 error = bus_dmamap_load_mbuf_segment(sc->txq.data_dmat, data->map,
1848 m0, segs, 1, &nsegs, 0);
1850 device_printf(sc->sc_dev,
1851 "could not map mbuf (error %d)\n", error);
1856 /* packet header may have moved, reset our local pointer */
1857 wh = mtod(m0, struct ieee80211_frame *);
1860 if (ieee80211_radiotap_active_vap(vap)) {
1861 struct rt2560_tx_radiotap_header *tap = &sc->sc_txtap;
1864 tap->wt_rate = rate;
1865 tap->wt_antenna = sc->tx_ant;
1867 ieee80211_radiotap_tx(vap, m0);
1873 /* remember link conditions for rate adaptation algorithm */
1874 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
1875 data->rix = ni->ni_txrate;
1876 /* XXX probably need last rssi value and not avg */
1877 data->rssi = ic->ic_node_getrssi(ni);
1879 data->rix = IEEE80211_FIXED_RATE_NONE;
1881 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1882 flags |= RT2560_TX_ACK;
1884 dur = ieee80211_ack_duration(ic->ic_rt,
1885 rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1886 *(uint16_t *)wh->i_dur = htole16(dur);
1889 rt2560_setup_tx_desc(sc, desc, flags, m0->m_pkthdr.len, rate, 1,
1892 bus_dmamap_sync(sc->txq.data_dmat, data->map, BUS_DMASYNC_PREWRITE);
1893 bus_dmamap_sync(sc->txq.desc_dmat, sc->txq.desc_map,
1894 BUS_DMASYNC_PREWRITE);
1896 DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n",
1897 m0->m_pkthdr.len, sc->txq.cur_encrypt, rate);
1901 sc->txq.cur_encrypt = (sc->txq.cur_encrypt + 1) % RT2560_TX_RING_COUNT;
1902 RAL_WRITE(sc, RT2560_SECCSR1, RT2560_KICK_ENCRYPT);
1908 rt2560_start_locked(struct ifnet *ifp)
1910 struct rt2560_softc *sc = ifp->if_softc;
1912 struct ieee80211_node *ni;
1915 m = ifq_dequeue(&ifp->if_snd);
1918 if (sc->txq.queued >= RT2560_TX_RING_COUNT - 1) {
1919 ifq_prepend(&ifp->if_snd, m);
1920 ifq_set_oactive(&ifp->if_snd);
1921 sc->sc_flags |= RT2560_F_DATA_OACTIVE;
1924 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1925 if (rt2560_tx_data(sc, m, ni) != 0) {
1926 ieee80211_free_node(ni);
1927 IFNET_STAT_INC(ifp, oerrors, 1);
1931 sc->sc_tx_timer = 5;
1936 rt2560_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
1938 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
1939 rt2560_start_locked(ifp);
1943 rt2560_watchdog_callout(void *arg)
1945 struct rt2560_softc *sc = arg;
1946 struct ifnet *ifp = sc->sc_ifp;
1948 KASSERT(ifp->if_flags & IFF_RUNNING, ("not running"));
1950 if (sc->sc_invalid) /* card ejected */
1953 rt2560_encryption_intr(sc);
1956 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) {
1957 if_printf(ifp, "device timeout\n");
1958 rt2560_init_locked(sc);
1959 IFNET_STAT_INC(ifp, oerrors, 1);
1960 /* NB: callout is reset in rt2560_init() */
1963 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog_callout, sc);
1967 rt2560_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred)
1969 struct rt2560_softc *sc = ifp->if_softc;
1970 struct ieee80211com *ic = ifp->if_l2com;
1971 struct ifreq *ifr = (struct ifreq *) data;
1972 int error = 0, startall = 0;
1976 if (ifp->if_flags & IFF_UP) {
1977 if ((ifp->if_flags & IFF_RUNNING) == 0) {
1978 rt2560_init_locked(sc);
1981 rt2560_update_promisc(ic);
1983 if (ifp->if_flags & IFF_RUNNING)
1984 rt2560_stop_locked(sc);
1987 ieee80211_start_all(ic);
1990 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1993 error = ether_ioctl(ifp, cmd, data);
2003 rt2560_bbp_write(struct rt2560_softc *sc, uint8_t reg, uint8_t val)
2008 for (ntries = 0; ntries < 100; ntries++) {
2009 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2013 if (ntries == 100) {
2014 device_printf(sc->sc_dev, "could not write to BBP\n");
2018 tmp = RT2560_BBP_WRITE | RT2560_BBP_BUSY | reg << 8 | val;
2019 RAL_WRITE(sc, RT2560_BBPCSR, tmp);
2021 DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val);
2025 rt2560_bbp_read(struct rt2560_softc *sc, uint8_t reg)
2030 for (ntries = 0; ntries < 100; ntries++) {
2031 if (!(RAL_READ(sc, RT2560_BBPCSR) & RT2560_BBP_BUSY))
2035 if (ntries == 100) {
2036 device_printf(sc->sc_dev, "could not read from BBP\n");
2040 val = RT2560_BBP_BUSY | reg << 8;
2041 RAL_WRITE(sc, RT2560_BBPCSR, val);
2043 for (ntries = 0; ntries < 100; ntries++) {
2044 val = RAL_READ(sc, RT2560_BBPCSR);
2045 if (!(val & RT2560_BBP_BUSY))
2050 device_printf(sc->sc_dev, "could not read from BBP\n");
2055 rt2560_rf_write(struct rt2560_softc *sc, uint8_t reg, uint32_t val)
2060 for (ntries = 0; ntries < 100; ntries++) {
2061 if (!(RAL_READ(sc, RT2560_RFCSR) & RT2560_RF_BUSY))
2065 if (ntries == 100) {
2066 device_printf(sc->sc_dev, "could not write to RF\n");
2070 tmp = RT2560_RF_BUSY | RT2560_RF_20BIT | (val & 0xfffff) << 2 |
2072 RAL_WRITE(sc, RT2560_RFCSR, tmp);
2074 /* remember last written value in sc */
2075 sc->rf_regs[reg] = val;
2077 DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff);
2081 rt2560_set_chan(struct rt2560_softc *sc, struct ieee80211_channel *c)
2083 struct ifnet *ifp = sc->sc_ifp;
2084 struct ieee80211com *ic = ifp->if_l2com;
2088 chan = ieee80211_chan2ieee(ic, c);
2089 KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan));
2091 if (IEEE80211_IS_CHAN_2GHZ(c))
2092 power = min(sc->txpow[chan - 1], 31);
2096 /* adjust txpower using ifconfig settings */
2097 power -= (100 - ic->ic_txpowlimit) / 8;
2099 DPRINTFN(sc, 2, "setting channel to %u, txpower to %u\n", chan, power);
2101 switch (sc->rf_rev) {
2102 case RT2560_RF_2522:
2103 rt2560_rf_write(sc, RAL_RF1, 0x00814);
2104 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2522_r2[chan - 1]);
2105 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2108 case RT2560_RF_2523:
2109 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2110 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2523_r2[chan - 1]);
2111 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x38044);
2112 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2115 case RT2560_RF_2524:
2116 rt2560_rf_write(sc, RAL_RF1, 0x0c808);
2117 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2524_r2[chan - 1]);
2118 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2119 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2122 case RT2560_RF_2525:
2123 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2124 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_hi_r2[chan - 1]);
2125 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2126 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2128 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2129 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525_r2[chan - 1]);
2130 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2131 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286);
2134 case RT2560_RF_2525E:
2135 rt2560_rf_write(sc, RAL_RF1, 0x08808);
2136 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2525e_r2[chan - 1]);
2137 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2138 rt2560_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282);
2141 case RT2560_RF_2526:
2142 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_hi_r2[chan - 1]);
2143 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2144 rt2560_rf_write(sc, RAL_RF1, 0x08804);
2146 rt2560_rf_write(sc, RAL_RF2, rt2560_rf2526_r2[chan - 1]);
2147 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x18044);
2148 rt2560_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381);
2152 case RT2560_RF_5222:
2153 for (i = 0; rt2560_rf5222[i].chan != chan; i++);
2155 rt2560_rf_write(sc, RAL_RF1, rt2560_rf5222[i].r1);
2156 rt2560_rf_write(sc, RAL_RF2, rt2560_rf5222[i].r2);
2157 rt2560_rf_write(sc, RAL_RF3, power << 7 | 0x00040);
2158 rt2560_rf_write(sc, RAL_RF4, rt2560_rf5222[i].r4);
2161 kprintf("unknown ral rev=%d\n", sc->rf_rev);
2165 if ((ic->ic_flags & IEEE80211_F_SCAN) == 0) {
2166 /* set Japan filter bit for channel 14 */
2167 tmp = rt2560_bbp_read(sc, 70);
2169 tmp &= ~RT2560_JAPAN_FILTER;
2171 tmp |= RT2560_JAPAN_FILTER;
2173 rt2560_bbp_write(sc, 70, tmp);
2175 /* clear CRC errors */
2176 RAL_READ(sc, RT2560_CNT0);
2181 rt2560_set_channel(struct ieee80211com *ic)
2183 struct ifnet *ifp = ic->ic_ifp;
2184 struct rt2560_softc *sc = ifp->if_softc;
2186 rt2560_set_chan(sc, ic->ic_curchan);
2192 * Disable RF auto-tuning.
2195 rt2560_disable_rf_tune(struct rt2560_softc *sc)
2199 if (sc->rf_rev != RT2560_RF_2523) {
2200 tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE;
2201 rt2560_rf_write(sc, RAL_RF1, tmp);
2204 tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE;
2205 rt2560_rf_write(sc, RAL_RF3, tmp);
2207 DPRINTFN(sc, 2, "%s", "disabling RF autotune\n");
2212 * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF
2216 rt2560_enable_tsf_sync(struct rt2560_softc *sc)
2218 struct ifnet *ifp = sc->sc_ifp;
2219 struct ieee80211com *ic = ifp->if_l2com;
2220 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2221 uint16_t logcwmin, preload;
2224 /* first, disable TSF synchronization */
2225 RAL_WRITE(sc, RT2560_CSR14, 0);
2227 tmp = 16 * vap->iv_bss->ni_intval;
2228 RAL_WRITE(sc, RT2560_CSR12, tmp);
2230 RAL_WRITE(sc, RT2560_CSR13, 0);
2233 preload = (vap->iv_opmode == IEEE80211_M_STA) ? 384 : 1024;
2234 tmp = logcwmin << 16 | preload;
2235 RAL_WRITE(sc, RT2560_BCNOCSR, tmp);
2237 /* finally, enable TSF synchronization */
2238 tmp = RT2560_ENABLE_TSF | RT2560_ENABLE_TBCN;
2239 if (ic->ic_opmode == IEEE80211_M_STA)
2240 tmp |= RT2560_ENABLE_TSF_SYNC(1);
2242 tmp |= RT2560_ENABLE_TSF_SYNC(2) |
2243 RT2560_ENABLE_BEACON_GENERATOR;
2244 RAL_WRITE(sc, RT2560_CSR14, tmp);
2246 DPRINTF(sc, "%s", "enabling TSF synchronization\n");
2250 rt2560_enable_tsf(struct rt2560_softc *sc)
2252 RAL_WRITE(sc, RT2560_CSR14, 0);
2253 RAL_WRITE(sc, RT2560_CSR14,
2254 RT2560_ENABLE_TSF_SYNC(2) | RT2560_ENABLE_TSF);
2258 rt2560_update_plcp(struct rt2560_softc *sc)
2260 struct ifnet *ifp = sc->sc_ifp;
2261 struct ieee80211com *ic = ifp->if_l2com;
2263 /* no short preamble for 1Mbps */
2264 RAL_WRITE(sc, RT2560_PLCP1MCSR, 0x00700400);
2266 if (!(ic->ic_flags & IEEE80211_F_SHPREAMBLE)) {
2267 /* values taken from the reference driver */
2268 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380401);
2269 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x00150402);
2270 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b8403);
2272 /* same values as above or'ed 0x8 */
2273 RAL_WRITE(sc, RT2560_PLCP2MCSR, 0x00380409);
2274 RAL_WRITE(sc, RT2560_PLCP5p5MCSR, 0x0015040a);
2275 RAL_WRITE(sc, RT2560_PLCP11MCSR, 0x000b840b);
2278 DPRINTF(sc, "updating PLCP for %s preamble\n",
2279 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) ? "short" : "long");
2283 * This function can be called by ieee80211_set_shortslottime(). Refer to
2284 * IEEE Std 802.11-1999 pp. 85 to know how these values are computed.
2287 rt2560_update_slot(struct ieee80211com *ic)
2289 struct rt2560_softc *sc = ic->ic_softc;
2291 uint16_t tx_sifs, tx_pifs, tx_difs, eifs;
2294 #ifndef FORCE_SLOTTIME
2295 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
2298 * Setting slot time according to "short slot time" capability
2299 * in beacon/probe_resp seems to cause problem to acknowledge
2300 * certain AP's data frames transimitted at CCK/DS rates: the
2301 * problematic AP keeps retransmitting data frames, probably
2302 * because MAC level acks are not received by hardware.
2303 * So we cheat a little bit here by claiming we are capable of
2304 * "short slot time" but setting hardware slot time to the normal
2305 * slot time. ral(4) does not seem to have trouble to receive
2306 * frames transmitted using short slot time even if hardware
2307 * slot time is set to normal slot time. If we didn't use this
2308 * trick, we would have to claim that short slot time is not
2309 * supported; this would give relative poor RX performance
2310 * (-1Mb~-2Mb lower) and the _whole_ BSS would stop using short
2316 /* update the MAC slot boundaries */
2317 tx_sifs = RAL_SIFS - RT2560_TXRX_TURNAROUND;
2318 tx_pifs = tx_sifs + slottime;
2319 tx_difs = tx_sifs + 2 * slottime;
2320 eifs = (ic->ic_curmode == IEEE80211_MODE_11B) ? 364 : 60;
2322 tmp = RAL_READ(sc, RT2560_CSR11);
2323 tmp = (tmp & ~0x1f00) | slottime << 8;
2324 RAL_WRITE(sc, RT2560_CSR11, tmp);
2326 tmp = tx_pifs << 16 | tx_sifs;
2327 RAL_WRITE(sc, RT2560_CSR18, tmp);
2329 tmp = eifs << 16 | tx_difs;
2330 RAL_WRITE(sc, RT2560_CSR19, tmp);
2332 DPRINTF(sc, "setting slottime to %uus\n", slottime);
2336 rt2560_set_basicrates(struct rt2560_softc *sc)
2338 struct ifnet *ifp = sc->sc_ifp;
2339 struct ieee80211com *ic = ifp->if_l2com;
2341 /* update basic rate set */
2342 if (ic->ic_curmode == IEEE80211_MODE_11B) {
2343 /* 11b basic rates: 1, 2Mbps */
2344 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x3);
2345 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) {
2346 /* 11a basic rates: 6, 12, 24Mbps */
2347 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x150);
2349 /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */
2350 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x15f);
2355 rt2560_update_led(struct rt2560_softc *sc, int led1, int led2)
2359 /* set ON period to 70ms and OFF period to 30ms */
2360 tmp = led1 << 16 | led2 << 17 | 70 << 8 | 30;
2361 RAL_WRITE(sc, RT2560_LEDCSR, tmp);
2365 rt2560_set_bssid(struct rt2560_softc *sc, const uint8_t *bssid)
2368 char ethstr[ETHER_ADDRSTRLEN + 1];
2370 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
2371 RAL_WRITE(sc, RT2560_CSR5, tmp);
2373 tmp = bssid[4] | bssid[5] << 8;
2374 RAL_WRITE(sc, RT2560_CSR6, tmp);
2376 DPRINTF(sc, "setting BSSID to %s\n", kether_ntoa(bssid, ethstr));
2380 rt2560_set_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2383 char ethstr[ETHER_ADDRSTRLEN + 1];
2385 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
2386 RAL_WRITE(sc, RT2560_CSR3, tmp);
2388 tmp = addr[4] | addr[5] << 8;
2389 RAL_WRITE(sc, RT2560_CSR4, tmp);
2391 DPRINTF(sc, "setting MAC address to %s\n", kether_ntoa(addr, ethstr));
2395 rt2560_get_macaddr(struct rt2560_softc *sc, uint8_t *addr)
2399 tmp = RAL_READ(sc, RT2560_CSR3);
2400 addr[0] = tmp & 0xff;
2401 addr[1] = (tmp >> 8) & 0xff;
2402 addr[2] = (tmp >> 16) & 0xff;
2403 addr[3] = (tmp >> 24);
2405 tmp = RAL_READ(sc, RT2560_CSR4);
2406 addr[4] = tmp & 0xff;
2407 addr[5] = (tmp >> 8) & 0xff;
2411 rt2560_update_promisc(struct ieee80211com *ic)
2413 struct rt2560_softc *sc = ic->ic_softc;
2416 tmp = RAL_READ(sc, RT2560_RXCSR0);
2418 tmp &= ~RT2560_DROP_NOT_TO_ME;
2419 if (!(ic->ic_ifp->if_flags & IFF_PROMISC))
2420 tmp |= RT2560_DROP_NOT_TO_ME;
2422 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2424 DPRINTF(sc, "%s promiscuous mode\n",
2425 (ic->ic_ifp->if_flags & IFF_PROMISC) ? "entering" : "leaving");
2429 rt2560_get_rf(int rev)
2432 case RT2560_RF_2522: return "RT2522";
2433 case RT2560_RF_2523: return "RT2523";
2434 case RT2560_RF_2524: return "RT2524";
2435 case RT2560_RF_2525: return "RT2525";
2436 case RT2560_RF_2525E: return "RT2525e";
2437 case RT2560_RF_2526: return "RT2526";
2438 case RT2560_RF_5222: return "RT5222";
2439 default: return "unknown";
2444 rt2560_read_config(struct rt2560_softc *sc)
2449 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CONFIG0);
2450 sc->rf_rev = (val >> 11) & 0x7;
2451 sc->hw_radio = (val >> 10) & 0x1;
2452 sc->led_mode = (val >> 6) & 0x7;
2453 sc->rx_ant = (val >> 4) & 0x3;
2454 sc->tx_ant = (val >> 2) & 0x3;
2455 sc->nb_ant = val & 0x3;
2457 /* read default values for BBP registers */
2458 for (i = 0; i < 16; i++) {
2459 val = rt2560_eeprom_read(sc, RT2560_EEPROM_BBP_BASE + i);
2460 if (val == 0 || val == 0xffff)
2463 sc->bbp_prom[i].reg = val >> 8;
2464 sc->bbp_prom[i].val = val & 0xff;
2467 /* read Tx power for all b/g channels */
2468 for (i = 0; i < 14 / 2; i++) {
2469 val = rt2560_eeprom_read(sc, RT2560_EEPROM_TXPOWER + i);
2470 sc->txpow[i * 2] = val & 0xff;
2471 sc->txpow[i * 2 + 1] = val >> 8;
2473 for (i = 0; i < 14; ++i) {
2474 if (sc->txpow[i] > 31)
2478 val = rt2560_eeprom_read(sc, RT2560_EEPROM_CALIBRATE);
2479 if ((val & 0xff) == 0xff)
2480 sc->rssi_corr = RT2560_DEFAULT_RSSI_CORR;
2482 sc->rssi_corr = val & 0xff;
2483 DPRINTF(sc, "rssi correction %d, calibrate 0x%02x\n",
2484 sc->rssi_corr, val);
2489 rt2560_scan_start(struct ieee80211com *ic)
2491 struct ifnet *ifp = ic->ic_ifp;
2492 struct rt2560_softc *sc = ifp->if_softc;
2494 /* abort TSF synchronization */
2495 RAL_WRITE(sc, RT2560_CSR14, 0);
2496 rt2560_set_bssid(sc, ifp->if_broadcastaddr);
2500 rt2560_scan_end(struct ieee80211com *ic)
2502 struct ifnet *ifp = ic->ic_ifp;
2503 struct rt2560_softc *sc = ifp->if_softc;
2504 struct ieee80211vap *vap = ic->ic_scan->ss_vap;
2506 rt2560_enable_tsf_sync(sc);
2507 /* XXX keep local copy */
2508 rt2560_set_bssid(sc, vap->iv_bss->ni_bssid);
2512 rt2560_bbp_init(struct rt2560_softc *sc)
2514 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2517 /* wait for BBP to be ready */
2518 for (ntries = 0; ntries < 100; ntries++) {
2519 if (rt2560_bbp_read(sc, RT2560_BBP_VERSION) != 0)
2523 if (ntries == 100) {
2524 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2528 /* initialize BBP registers to default values */
2529 for (i = 0; i < N(rt2560_def_bbp); i++) {
2530 rt2560_bbp_write(sc, rt2560_def_bbp[i].reg,
2531 rt2560_def_bbp[i].val);
2534 /* initialize BBP registers to values stored in EEPROM */
2535 for (i = 0; i < 16; i++) {
2536 if (sc->bbp_prom[i].reg == 0 && sc->bbp_prom[i].val == 0)
2538 rt2560_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2540 rt2560_bbp_write(sc, 17, 0x48); /* XXX restore bbp17 */
2547 rt2560_set_txantenna(struct rt2560_softc *sc, int antenna)
2552 tx = rt2560_bbp_read(sc, RT2560_BBP_TX) & ~RT2560_BBP_ANTMASK;
2554 tx |= RT2560_BBP_ANTA;
2555 else if (antenna == 2)
2556 tx |= RT2560_BBP_ANTB;
2558 tx |= RT2560_BBP_DIVERSITY;
2560 /* need to force I/Q flip for RF 2525e, 2526 and 5222 */
2561 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526 ||
2562 sc->rf_rev == RT2560_RF_5222)
2563 tx |= RT2560_BBP_FLIPIQ;
2565 rt2560_bbp_write(sc, RT2560_BBP_TX, tx);
2567 /* update values for CCK and OFDM in BBPCSR1 */
2568 tmp = RAL_READ(sc, RT2560_BBPCSR1) & ~0x00070007;
2569 tmp |= (tx & 0x7) << 16 | (tx & 0x7);
2570 RAL_WRITE(sc, RT2560_BBPCSR1, tmp);
2574 rt2560_set_rxantenna(struct rt2560_softc *sc, int antenna)
2578 rx = rt2560_bbp_read(sc, RT2560_BBP_RX) & ~RT2560_BBP_ANTMASK;
2580 rx |= RT2560_BBP_ANTA;
2581 else if (antenna == 2)
2582 rx |= RT2560_BBP_ANTB;
2584 rx |= RT2560_BBP_DIVERSITY;
2586 /* need to force no I/Q flip for RF 2525e and 2526 */
2587 if (sc->rf_rev == RT2560_RF_2525E || sc->rf_rev == RT2560_RF_2526)
2588 rx &= ~RT2560_BBP_FLIPIQ;
2590 rt2560_bbp_write(sc, RT2560_BBP_RX, rx);
2594 rt2560_init_locked(struct rt2560_softc *sc)
2596 #define N(a) (sizeof (a) / sizeof ((a)[0]))
2597 struct ifnet *ifp = sc->sc_ifp;
2598 struct ieee80211com *ic = ifp->if_l2com;
2602 rt2560_stop_locked(sc);
2604 /* setup tx rings */
2605 tmp = RT2560_PRIO_RING_COUNT << 24 |
2606 RT2560_ATIM_RING_COUNT << 16 |
2607 RT2560_TX_RING_COUNT << 8 |
2608 RT2560_TX_DESC_SIZE;
2610 /* rings must be initialized in this exact order */
2611 RAL_WRITE(sc, RT2560_TXCSR2, tmp);
2612 RAL_WRITE(sc, RT2560_TXCSR3, sc->txq.physaddr);
2613 RAL_WRITE(sc, RT2560_TXCSR5, sc->prioq.physaddr);
2614 RAL_WRITE(sc, RT2560_TXCSR4, sc->atimq.physaddr);
2615 RAL_WRITE(sc, RT2560_TXCSR6, sc->bcnq.physaddr);
2618 tmp = RT2560_RX_RING_COUNT << 8 | RT2560_RX_DESC_SIZE;
2620 RAL_WRITE(sc, RT2560_RXCSR1, tmp);
2621 RAL_WRITE(sc, RT2560_RXCSR2, sc->rxq.physaddr);
2623 /* initialize MAC registers to default values */
2624 for (i = 0; i < N(rt2560_def_mac); i++)
2625 RAL_WRITE(sc, rt2560_def_mac[i].reg, rt2560_def_mac[i].val);
2627 rt2560_set_macaddr(sc, IF_LLADDR(ifp));
2629 /* set basic rate set (will be updated later) */
2630 RAL_WRITE(sc, RT2560_ARSP_PLCP_1, 0x153);
2632 rt2560_update_slot(ic);
2633 rt2560_update_plcp(sc);
2634 rt2560_update_led(sc, 0, 0);
2636 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2637 RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
2639 if (rt2560_bbp_init(sc) != 0) {
2644 rt2560_set_txantenna(sc, sc->tx_ant);
2645 rt2560_set_rxantenna(sc, sc->rx_ant);
2647 /* set default BSS channel */
2648 rt2560_set_chan(sc, ic->ic_curchan);
2651 tmp = RT2560_DROP_PHY_ERROR | RT2560_DROP_CRC_ERROR;
2652 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2653 tmp |= RT2560_DROP_CTL | RT2560_DROP_VERSION_ERROR;
2654 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2655 ic->ic_opmode != IEEE80211_M_MBSS)
2656 tmp |= RT2560_DROP_TODS;
2657 if (!(ifp->if_flags & IFF_PROMISC))
2658 tmp |= RT2560_DROP_NOT_TO_ME;
2660 RAL_WRITE(sc, RT2560_RXCSR0, tmp);
2662 /* clear old FCS and Rx FIFO errors */
2663 RAL_READ(sc, RT2560_CNT0);
2664 RAL_READ(sc, RT2560_CNT4);
2666 /* clear any pending interrupts */
2667 RAL_WRITE(sc, RT2560_CSR7, 0xffffffff);
2669 /* enable interrupts */
2670 RAL_WRITE(sc, RT2560_CSR8, RT2560_INTR_MASK);
2672 ifq_clr_oactive(&ifp->if_snd);
2673 ifp->if_flags |= IFF_RUNNING;
2675 callout_reset(&sc->watchdog_ch, hz, rt2560_watchdog_callout, sc);
2680 rt2560_init(void *priv)
2682 struct rt2560_softc *sc = priv;
2683 struct ifnet *ifp = sc->sc_ifp;
2684 struct ieee80211com *ic = ifp->if_l2com;
2686 rt2560_init_locked(sc);
2688 if (ifp->if_flags & IFF_RUNNING)
2689 ieee80211_start_all(ic); /* start all vap's */
2693 rt2560_stop_locked(struct rt2560_softc *sc)
2695 struct ifnet *ifp = sc->sc_ifp;
2696 volatile int *flags = &sc->sc_flags;
2698 while (*flags & RT2560_F_INPUT_RUNNING)
2699 zsleep(sc, &wlan_global_serializer, 0, "ralrunning", hz/10);
2701 callout_stop(&sc->watchdog_ch);
2702 sc->sc_tx_timer = 0;
2704 if (ifp->if_flags & IFF_RUNNING) {
2705 ifp->if_flags &= ~IFF_RUNNING;
2706 ifq_clr_oactive(&ifp->if_snd);
2709 RAL_WRITE(sc, RT2560_TXCSR0, RT2560_ABORT_TX);
2712 RAL_WRITE(sc, RT2560_RXCSR0, RT2560_DISABLE_RX);
2714 /* reset ASIC (imply reset BBP) */
2715 RAL_WRITE(sc, RT2560_CSR1, RT2560_RESET_ASIC);
2716 RAL_WRITE(sc, RT2560_CSR1, 0);
2718 /* disable interrupts */
2719 RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
2721 /* reset Tx and Rx rings */
2722 rt2560_reset_tx_ring(sc, &sc->txq);
2723 rt2560_reset_tx_ring(sc, &sc->atimq);
2724 rt2560_reset_tx_ring(sc, &sc->prioq);
2725 rt2560_reset_tx_ring(sc, &sc->bcnq);
2726 rt2560_reset_rx_ring(sc, &sc->rxq);
2728 sc->sc_flags &= ~(RT2560_F_PRIO_OACTIVE | RT2560_F_DATA_OACTIVE);
2732 rt2560_stop(void *arg)
2734 struct rt2560_softc *sc = arg;
2736 rt2560_stop_locked(sc);
2740 rt2560_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2741 const struct ieee80211_bpf_params *params)
2743 struct ieee80211com *ic = ni->ni_ic;
2744 struct ifnet *ifp = ic->ic_ifp;
2745 struct rt2560_softc *sc = ifp->if_softc;
2747 /* prevent management frames from being sent if we're not ready */
2748 if (!(ifp->if_flags & IFF_RUNNING)) {
2750 ieee80211_free_node(ni);
2753 if (sc->prioq.queued >= RT2560_PRIO_RING_COUNT) {
2754 ifq_set_oactive(&ifp->if_snd);
2755 sc->sc_flags |= RT2560_F_PRIO_OACTIVE;
2757 ieee80211_free_node(ni);
2758 return ENOBUFS; /* XXX */
2761 IFNET_STAT_INC(ifp, opackets, 1);
2763 if (params == NULL) {
2765 * Legacy path; interpret frame contents to decide
2766 * precisely how to send the frame.
2768 if (rt2560_tx_mgt(sc, m, ni) != 0)
2772 * Caller supplied explicit parameters to use in
2773 * sending the frame.
2775 if (rt2560_tx_raw(sc, m, ni, params))
2778 sc->sc_tx_timer = 5;
2782 IFNET_STAT_INC(ifp, oerrors, 1);
2783 ieee80211_free_node(ni);
2784 return EIO; /* XXX */