145static device_probe_t rum_match;
146static device_attach_t rum_attach;
147static device_detach_t rum_detach;
148
149static usb_callback_t rum_bulk_read_callback;
150static usb_callback_t rum_bulk_write_callback;
151
152static usb_error_t rum_do_request(struct rum_softc *sc,
153 struct usb_device_request *req, void *data);
154static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
155 const char name[IFNAMSIZ], int unit, int opmode,
156 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
157 const uint8_t mac[IEEE80211_ADDR_LEN]);
158static void rum_vap_delete(struct ieee80211vap *);
159static void rum_tx_free(struct rum_tx_data *, int);
160static void rum_setup_tx_list(struct rum_softc *);
161static void rum_unsetup_tx_list(struct rum_softc *);
162static int rum_newstate(struct ieee80211vap *,
163 enum ieee80211_state, int);
164static void rum_setup_tx_desc(struct rum_softc *,
165 struct rum_tx_desc *, uint32_t, uint16_t, int,
166 int);
167static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
168 struct ieee80211_node *);
169static int rum_tx_raw(struct rum_softc *, struct mbuf *,
170 struct ieee80211_node *,
171 const struct ieee80211_bpf_params *);
172static int rum_tx_data(struct rum_softc *, struct mbuf *,
173 struct ieee80211_node *);
174static void rum_start(struct ifnet *);
175static int rum_ioctl(struct ifnet *, u_long, caddr_t);
176static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
177 int);
178static uint32_t rum_read(struct rum_softc *, uint16_t);
179static void rum_read_multi(struct rum_softc *, uint16_t, void *,
180 int);
181static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
182static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
183 size_t);
184static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
185static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
186static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
187static void rum_select_antenna(struct rum_softc *);
188static void rum_enable_mrr(struct rum_softc *);
189static void rum_set_txpreamble(struct rum_softc *);
190static void rum_set_basicrates(struct rum_softc *);
191static void rum_select_band(struct rum_softc *,
192 struct ieee80211_channel *);
193static void rum_set_chan(struct rum_softc *,
194 struct ieee80211_channel *);
195static void rum_enable_tsf_sync(struct rum_softc *);
196static void rum_enable_tsf(struct rum_softc *);
197static void rum_update_slot(struct ifnet *);
198static void rum_set_bssid(struct rum_softc *, const uint8_t *);
199static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
200static void rum_update_mcast(struct ifnet *);
201static void rum_update_promisc(struct ifnet *);
202static void rum_setpromisc(struct rum_softc *);
203static const char *rum_get_rf(int);
204static void rum_read_eeprom(struct rum_softc *);
205static int rum_bbp_init(struct rum_softc *);
206static void rum_init_locked(struct rum_softc *);
207static void rum_init(void *);
208static void rum_stop(struct rum_softc *);
209static void rum_load_microcode(struct rum_softc *, const uint8_t *,
210 size_t);
211static int rum_prepare_beacon(struct rum_softc *,
212 struct ieee80211vap *);
213static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
214 const struct ieee80211_bpf_params *);
215static void rum_scan_start(struct ieee80211com *);
216static void rum_scan_end(struct ieee80211com *);
217static void rum_set_channel(struct ieee80211com *);
218static int rum_get_rssi(struct rum_softc *, uint8_t);
219static void rum_ratectl_start(struct rum_softc *,
220 struct ieee80211_node *);
221static void rum_ratectl_timeout(void *);
222static void rum_ratectl_task(void *, int);
223static int rum_pause(struct rum_softc *, int);
224
225static const struct {
226 uint32_t reg;
227 uint32_t val;
228} rum_def_mac[] = {
229 { RT2573_TXRX_CSR0, 0x025fb032 },
230 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
231 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
232 { RT2573_TXRX_CSR3, 0x00858687 },
233 { RT2573_TXRX_CSR7, 0x2e31353b },
234 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
235 { RT2573_TXRX_CSR15, 0x0000000f },
236 { RT2573_MAC_CSR6, 0x00000fff },
237 { RT2573_MAC_CSR8, 0x016c030a },
238 { RT2573_MAC_CSR10, 0x00000718 },
239 { RT2573_MAC_CSR12, 0x00000004 },
240 { RT2573_MAC_CSR13, 0x00007f00 },
241 { RT2573_SEC_CSR0, 0x00000000 },
242 { RT2573_SEC_CSR1, 0x00000000 },
243 { RT2573_SEC_CSR5, 0x00000000 },
244 { RT2573_PHY_CSR1, 0x000023b0 },
245 { RT2573_PHY_CSR5, 0x00040a06 },
246 { RT2573_PHY_CSR6, 0x00080606 },
247 { RT2573_PHY_CSR7, 0x00000408 },
248 { RT2573_AIFSN_CSR, 0x00002273 },
249 { RT2573_CWMIN_CSR, 0x00002344 },
250 { RT2573_CWMAX_CSR, 0x000034aa }
251};
252
253static const struct {
254 uint8_t reg;
255 uint8_t val;
256} rum_def_bbp[] = {
257 { 3, 0x80 },
258 { 15, 0x30 },
259 { 17, 0x20 },
260 { 21, 0xc8 },
261 { 22, 0x38 },
262 { 23, 0x06 },
263 { 24, 0xfe },
264 { 25, 0x0a },
265 { 26, 0x0d },
266 { 32, 0x0b },
267 { 34, 0x12 },
268 { 37, 0x07 },
269 { 39, 0xf8 },
270 { 41, 0x60 },
271 { 53, 0x10 },
272 { 54, 0x18 },
273 { 60, 0x10 },
274 { 61, 0x04 },
275 { 62, 0x04 },
276 { 75, 0xfe },
277 { 86, 0xfe },
278 { 88, 0xfe },
279 { 90, 0x0f },
280 { 99, 0x00 },
281 { 102, 0x16 },
282 { 107, 0x04 }
283};
284
285static const struct rfprog {
286 uint8_t chan;
287 uint32_t r1, r2, r3, r4;
288} rum_rf5226[] = {
289 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
290 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
291 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
292 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
293 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
294 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
295 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
296 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
297 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
298 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
299 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
300 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
301 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
302 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
303
304 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
305 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
306 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
307 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
308
309 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
310 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
311 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
312 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
313 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
314 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
315 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
316 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
317
318 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
319 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
320 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
321 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
322 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
323 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
324 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
325 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
326 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
327 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
328 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
329
330 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
331 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
332 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
333 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
334 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
335}, rum_rf5225[] = {
336 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
337 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
338 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
339 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
340 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
341 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
342 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
343 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
344 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
345 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
346 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
347 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
348 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
349 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
350
351 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
352 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
353 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
354 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
355
356 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
357 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
358 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
359 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
360 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
361 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
362 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
363 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
364
365 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
366 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
367 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
368 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
369 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
370 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
371 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
372 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
373 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
374 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
375 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
376
377 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
378 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
379 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
380 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
381 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
382};
383
384static const struct usb_config rum_config[RUM_N_TRANSFER] = {
385 [RUM_BULK_WR] = {
386 .type = UE_BULK,
387 .endpoint = UE_ADDR_ANY,
388 .direction = UE_DIR_OUT,
389 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
390 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
391 .callback = rum_bulk_write_callback,
392 .timeout = 5000, /* ms */
393 },
394 [RUM_BULK_RD] = {
395 .type = UE_BULK,
396 .endpoint = UE_ADDR_ANY,
397 .direction = UE_DIR_IN,
398 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
399 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
400 .callback = rum_bulk_read_callback,
401 },
402};
403
404static int
405rum_match(device_t self)
406{
407 struct usb_attach_arg *uaa = device_get_ivars(self);
408
409 if (uaa->usb_mode != USB_MODE_HOST)
410 return (ENXIO);
411 if (uaa->info.bConfigIndex != 0)
412 return (ENXIO);
413 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
414 return (ENXIO);
415
416 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
417}
418
419static int
420rum_attach(device_t self)
421{
422 struct usb_attach_arg *uaa = device_get_ivars(self);
423 struct rum_softc *sc = device_get_softc(self);
424 struct ieee80211com *ic;
425 struct ifnet *ifp;
426 uint8_t iface_index, bands;
427 uint32_t tmp;
428 int error, ntries;
429
430 device_set_usb_desc(self);
431 sc->sc_udev = uaa->device;
432 sc->sc_dev = self;
433
434 mtx_init(&sc->sc_mtx, device_get_nameunit(self),
435 MTX_NETWORK_LOCK, MTX_DEF);
436
437 iface_index = RT2573_IFACE_INDEX;
438 error = usbd_transfer_setup(uaa->device, &iface_index,
439 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
440 if (error) {
441 device_printf(self, "could not allocate USB transfers, "
442 "err=%s\n", usbd_errstr(error));
443 goto detach;
444 }
445
446 RUM_LOCK(sc);
447 /* retrieve RT2573 rev. no */
448 for (ntries = 0; ntries < 100; ntries++) {
449 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
450 break;
451 if (rum_pause(sc, hz / 100))
452 break;
453 }
454 if (ntries == 100) {
455 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
456 RUM_UNLOCK(sc);
457 goto detach;
458 }
459
460 /* retrieve MAC address and various other things from EEPROM */
461 rum_read_eeprom(sc);
462
463 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
464 tmp, rum_get_rf(sc->rf_rev));
465
466 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
467 RUM_UNLOCK(sc);
468
469 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
470 if (ifp == NULL) {
471 device_printf(sc->sc_dev, "can not if_alloc()\n");
472 goto detach;
473 }
474 ic = ifp->if_l2com;
475
476 ifp->if_softc = sc;
477 if_initname(ifp, "rum", device_get_unit(sc->sc_dev));
478 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
479 ifp->if_init = rum_init;
480 ifp->if_ioctl = rum_ioctl;
481 ifp->if_start = rum_start;
482 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
483 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
484 IFQ_SET_READY(&ifp->if_snd);
485
486 ic->ic_ifp = ifp;
487 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
488
489 /* set device capabilities */
490 ic->ic_caps =
491 IEEE80211_C_STA /* station mode supported */
492 | IEEE80211_C_IBSS /* IBSS mode supported */
493 | IEEE80211_C_MONITOR /* monitor mode supported */
494 | IEEE80211_C_HOSTAP /* HostAp mode supported */
495 | IEEE80211_C_TXPMGT /* tx power management */
496 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
497 | IEEE80211_C_SHSLOT /* short slot time supported */
498 | IEEE80211_C_BGSCAN /* bg scanning supported */
499 | IEEE80211_C_WPA /* 802.11i */
500 | IEEE80211_C_RATECTL /* use ratectl */
501 ;
502
503 bands = 0;
504 setbit(&bands, IEEE80211_MODE_11B);
505 setbit(&bands, IEEE80211_MODE_11G);
506 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226)
507 setbit(&bands, IEEE80211_MODE_11A);
508 ieee80211_init_channels(ic, NULL, &bands);
509
510 ieee80211_ifattach(ic, sc->sc_bssid);
511 ic->ic_update_promisc = rum_update_promisc;
512 ic->ic_raw_xmit = rum_raw_xmit;
513 ic->ic_scan_start = rum_scan_start;
514 ic->ic_scan_end = rum_scan_end;
515 ic->ic_set_channel = rum_set_channel;
516
517 ic->ic_vap_create = rum_vap_create;
518 ic->ic_vap_delete = rum_vap_delete;
519 ic->ic_update_mcast = rum_update_mcast;
520
521 ieee80211_radiotap_attach(ic,
522 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
523 RT2573_TX_RADIOTAP_PRESENT,
524 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
525 RT2573_RX_RADIOTAP_PRESENT);
526
527 if (bootverbose)
528 ieee80211_announce(ic);
529
530 return (0);
531
532detach:
533 rum_detach(self);
534 return (ENXIO); /* failure */
535}
536
537static int
538rum_detach(device_t self)
539{
540 struct rum_softc *sc = device_get_softc(self);
541 struct ifnet *ifp = sc->sc_ifp;
542 struct ieee80211com *ic;
543
544 /* stop all USB transfers */
545 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
546
547 /* free TX list, if any */
548 RUM_LOCK(sc);
549 rum_unsetup_tx_list(sc);
550 RUM_UNLOCK(sc);
551
552 if (ifp) {
553 ic = ifp->if_l2com;
554 ieee80211_ifdetach(ic);
555 if_free(ifp);
556 }
557 mtx_destroy(&sc->sc_mtx);
558
559 return (0);
560}
561
562static usb_error_t
563rum_do_request(struct rum_softc *sc,
564 struct usb_device_request *req, void *data)
565{
566 usb_error_t err;
567 int ntries = 10;
568
569 while (ntries--) {
570 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
571 req, data, 0, NULL, 250 /* ms */);
572 if (err == 0)
573 break;
574
575 DPRINTFN(1, "Control request failed, %s (retrying)\n",
576 usbd_errstr(err));
577 if (rum_pause(sc, hz / 100))
578 break;
579 }
580 return (err);
581}
582
583static struct ieee80211vap *
584rum_vap_create(struct ieee80211com *ic,
585 const char name[IFNAMSIZ], int unit, int opmode, int flags,
586 const uint8_t bssid[IEEE80211_ADDR_LEN],
587 const uint8_t mac[IEEE80211_ADDR_LEN])
588{
589 struct rum_softc *sc = ic->ic_ifp->if_softc;
590 struct rum_vap *rvp;
591 struct ieee80211vap *vap;
592
593 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
594 return NULL;
595 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap),
596 M_80211_VAP, M_NOWAIT | M_ZERO);
597 if (rvp == NULL)
598 return NULL;
599 vap = &rvp->vap;
600 /* enable s/w bmiss handling for sta mode */
601 ieee80211_vap_setup(ic, vap, name, unit, opmode,
602 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
603
604 /* override state transition machine */
605 rvp->newstate = vap->iv_newstate;
606 vap->iv_newstate = rum_newstate;
607
608 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
609 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
610 ieee80211_ratectl_init(vap);
611 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
612 /* complete setup */
613 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
614 ic->ic_opmode = opmode;
615 return vap;
616}
617
618static void
619rum_vap_delete(struct ieee80211vap *vap)
620{
621 struct rum_vap *rvp = RUM_VAP(vap);
622 struct ieee80211com *ic = vap->iv_ic;
623
624 usb_callout_drain(&rvp->ratectl_ch);
625 ieee80211_draintask(ic, &rvp->ratectl_task);
626 ieee80211_ratectl_deinit(vap);
627 ieee80211_vap_detach(vap);
628 free(rvp, M_80211_VAP);
629}
630
631static void
632rum_tx_free(struct rum_tx_data *data, int txerr)
633{
634 struct rum_softc *sc = data->sc;
635
636 if (data->m != NULL) {
637 if (data->m->m_flags & M_TXCB)
638 ieee80211_process_callback(data->ni, data->m,
639 txerr ? ETIMEDOUT : 0);
640 m_freem(data->m);
641 data->m = NULL;
642
643 ieee80211_free_node(data->ni);
644 data->ni = NULL;
645 }
646 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
647 sc->tx_nfree++;
648}
649
650static void
651rum_setup_tx_list(struct rum_softc *sc)
652{
653 struct rum_tx_data *data;
654 int i;
655
656 sc->tx_nfree = 0;
657 STAILQ_INIT(&sc->tx_q);
658 STAILQ_INIT(&sc->tx_free);
659
660 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
661 data = &sc->tx_data[i];
662
663 data->sc = sc;
664 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
665 sc->tx_nfree++;
666 }
667}
668
669static void
670rum_unsetup_tx_list(struct rum_softc *sc)
671{
672 struct rum_tx_data *data;
673 int i;
674
675 /* make sure any subsequent use of the queues will fail */
676 sc->tx_nfree = 0;
677 STAILQ_INIT(&sc->tx_q);
678 STAILQ_INIT(&sc->tx_free);
679
680 /* free up all node references and mbufs */
681 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
682 data = &sc->tx_data[i];
683
684 if (data->m != NULL) {
685 m_freem(data->m);
686 data->m = NULL;
687 }
688 if (data->ni != NULL) {
689 ieee80211_free_node(data->ni);
690 data->ni = NULL;
691 }
692 }
693}
694
695static int
696rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
697{
698 struct rum_vap *rvp = RUM_VAP(vap);
699 struct ieee80211com *ic = vap->iv_ic;
700 struct rum_softc *sc = ic->ic_ifp->if_softc;
701 const struct ieee80211_txparam *tp;
702 enum ieee80211_state ostate;
703 struct ieee80211_node *ni;
704 uint32_t tmp;
705
706 ostate = vap->iv_state;
707 DPRINTF("%s -> %s\n",
708 ieee80211_state_name[ostate],
709 ieee80211_state_name[nstate]);
710
711 IEEE80211_UNLOCK(ic);
712 RUM_LOCK(sc);
713 usb_callout_stop(&rvp->ratectl_ch);
714
715 switch (nstate) {
716 case IEEE80211_S_INIT:
717 if (ostate == IEEE80211_S_RUN) {
718 /* abort TSF synchronization */
719 tmp = rum_read(sc, RT2573_TXRX_CSR9);
720 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
721 }
722 break;
723
724 case IEEE80211_S_RUN:
725 ni = vap->iv_bss;
726
727 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
728 rum_update_slot(ic->ic_ifp);
729 rum_enable_mrr(sc);
730 rum_set_txpreamble(sc);
731 rum_set_basicrates(sc);
732 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
733 rum_set_bssid(sc, sc->sc_bssid);
734 }
735
736 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
737 vap->iv_opmode == IEEE80211_M_IBSS)
738 rum_prepare_beacon(sc, vap);
739
740 if (vap->iv_opmode != IEEE80211_M_MONITOR)
741 rum_enable_tsf_sync(sc);
742 else
743 rum_enable_tsf(sc);
744
745 /* enable automatic rate adaptation */
746 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
747 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
748 rum_ratectl_start(sc, ni);
749 break;
750 default:
751 break;
752 }
753 RUM_UNLOCK(sc);
754 IEEE80211_LOCK(ic);
755 return (rvp->newstate(vap, nstate, arg));
756}
757
758static void
759rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
760{
761 struct rum_softc *sc = usbd_xfer_softc(xfer);
762 struct ifnet *ifp = sc->sc_ifp;
763 struct ieee80211vap *vap;
764 struct rum_tx_data *data;
765 struct mbuf *m;
766 struct usb_page_cache *pc;
767 unsigned int len;
768 int actlen, sumlen;
769
770 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
771
772 switch (USB_GET_STATE(xfer)) {
773 case USB_ST_TRANSFERRED:
774 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
775
776 /* free resources */
777 data = usbd_xfer_get_priv(xfer);
778 rum_tx_free(data, 0);
779 usbd_xfer_set_priv(xfer, NULL);
780
781 ifp->if_opackets++;
782 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
783
784 /* FALLTHROUGH */
785 case USB_ST_SETUP:
786tr_setup:
787 data = STAILQ_FIRST(&sc->tx_q);
788 if (data) {
789 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
790 m = data->m;
791
792 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) {
793 DPRINTFN(0, "data overflow, %u bytes\n",
794 m->m_pkthdr.len);
795 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
796 }
797 pc = usbd_xfer_get_frame(xfer, 0);
798 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
799 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
800 m->m_pkthdr.len);
801
802 vap = data->ni->ni_vap;
803 if (ieee80211_radiotap_active_vap(vap)) {
804 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
805
806 tap->wt_flags = 0;
807 tap->wt_rate = data->rate;
808 tap->wt_antenna = sc->tx_ant;
809
810 ieee80211_radiotap_tx(vap, m);
811 }
812
813 /* align end on a 4-bytes boundary */
814 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
815 if ((len % 64) == 0)
816 len += 4;
817
818 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
819 m->m_pkthdr.len, len);
820
821 usbd_xfer_set_frame_len(xfer, 0, len);
822 usbd_xfer_set_priv(xfer, data);
823
824 usbd_transfer_submit(xfer);
825 }
826 RUM_UNLOCK(sc);
827 rum_start(ifp);
828 RUM_LOCK(sc);
829 break;
830
831 default: /* Error */
832 DPRINTFN(11, "transfer error, %s\n",
833 usbd_errstr(error));
834
835 ifp->if_oerrors++;
836 data = usbd_xfer_get_priv(xfer);
837 if (data != NULL) {
838 rum_tx_free(data, error);
839 usbd_xfer_set_priv(xfer, NULL);
840 }
841
842 if (error != USB_ERR_CANCELLED) {
843 if (error == USB_ERR_TIMEOUT)
844 device_printf(sc->sc_dev, "device timeout\n");
845
846 /*
847 * Try to clear stall first, also if other
848 * errors occur, hence clearing stall
849 * introduces a 50 ms delay:
850 */
851 usbd_xfer_set_stall(xfer);
852 goto tr_setup;
853 }
854 break;
855 }
856}
857
858static void
859rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
860{
861 struct rum_softc *sc = usbd_xfer_softc(xfer);
862 struct ifnet *ifp = sc->sc_ifp;
863 struct ieee80211com *ic = ifp->if_l2com;
864 struct ieee80211_node *ni;
865 struct mbuf *m = NULL;
866 struct usb_page_cache *pc;
867 uint32_t flags;
868 uint8_t rssi = 0;
869 int len;
870
871 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
872
873 switch (USB_GET_STATE(xfer)) {
874 case USB_ST_TRANSFERRED:
875
876 DPRINTFN(15, "rx done, actlen=%d\n", len);
877
878 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
879 DPRINTF("%s: xfer too short %d\n",
880 device_get_nameunit(sc->sc_dev), len);
881 ifp->if_ierrors++;
882 goto tr_setup;
883 }
884
885 len -= RT2573_RX_DESC_SIZE;
886 pc = usbd_xfer_get_frame(xfer, 0);
887 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
888
889 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
890 flags = le32toh(sc->sc_rx_desc.flags);
891 if (flags & RT2573_RX_CRC_ERROR) {
892 /*
893 * This should not happen since we did not
894 * request to receive those frames when we
895 * filled RUM_TXRX_CSR2:
896 */
897 DPRINTFN(5, "PHY or CRC error\n");
898 ifp->if_ierrors++;
899 goto tr_setup;
900 }
901
902 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
903 if (m == NULL) {
904 DPRINTF("could not allocate mbuf\n");
905 ifp->if_ierrors++;
906 goto tr_setup;
907 }
908 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
909 mtod(m, uint8_t *), len);
910
911 /* finalize mbuf */
912 m->m_pkthdr.rcvif = ifp;
913 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
914
915 if (ieee80211_radiotap_active(ic)) {
916 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
917
918 /* XXX read tsf */
919 tap->wr_flags = 0;
920 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
921 (flags & RT2573_RX_OFDM) ?
922 IEEE80211_T_OFDM : IEEE80211_T_CCK);
923 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
924 tap->wr_antnoise = RT2573_NOISE_FLOOR;
925 tap->wr_antenna = sc->rx_ant;
926 }
927 /* FALLTHROUGH */
928 case USB_ST_SETUP:
929tr_setup:
930 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
931 usbd_transfer_submit(xfer);
932
933 /*
934 * At the end of a USB callback it is always safe to unlock
935 * the private mutex of a device! That is why we do the
936 * "ieee80211_input" here, and not some lines up!
937 */
938 RUM_UNLOCK(sc);
939 if (m) {
940 ni = ieee80211_find_rxnode(ic,
941 mtod(m, struct ieee80211_frame_min *));
942 if (ni != NULL) {
943 (void) ieee80211_input(ni, m, rssi,
944 RT2573_NOISE_FLOOR);
945 ieee80211_free_node(ni);
946 } else
947 (void) ieee80211_input_all(ic, m, rssi,
948 RT2573_NOISE_FLOOR);
949 }
950 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
951 !IFQ_IS_EMPTY(&ifp->if_snd))
952 rum_start(ifp);
953 RUM_LOCK(sc);
954 return;
955
956 default: /* Error */
957 if (error != USB_ERR_CANCELLED) {
958 /* try to clear stall first */
959 usbd_xfer_set_stall(xfer);
960 goto tr_setup;
961 }
962 return;
963 }
964}
965
966static uint8_t
967rum_plcp_signal(int rate)
968{
969 switch (rate) {
970 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
971 case 12: return 0xb;
972 case 18: return 0xf;
973 case 24: return 0xa;
974 case 36: return 0xe;
975 case 48: return 0x9;
976 case 72: return 0xd;
977 case 96: return 0x8;
978 case 108: return 0xc;
979
980 /* CCK rates (NB: not IEEE std, device-specific) */
981 case 2: return 0x0;
982 case 4: return 0x1;
983 case 11: return 0x2;
984 case 22: return 0x3;
985 }
986 return 0xff; /* XXX unsupported/unknown rate */
987}
988
989static void
990rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
991 uint32_t flags, uint16_t xflags, int len, int rate)
992{
993 struct ifnet *ifp = sc->sc_ifp;
994 struct ieee80211com *ic = ifp->if_l2com;
995 uint16_t plcp_length;
996 int remainder;
997
998 desc->flags = htole32(flags);
999 desc->flags |= htole32(RT2573_TX_VALID);
1000 desc->flags |= htole32(len << 16);
1001
1002 desc->xflags = htole16(xflags);
1003
1004 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) |
1005 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10));
1006
1007 /* setup PLCP fields */
1008 desc->plcp_signal = rum_plcp_signal(rate);
1009 desc->plcp_service = 4;
1010
1011 len += IEEE80211_CRC_LEN;
1012 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1013 desc->flags |= htole32(RT2573_TX_OFDM);
1014
1015 plcp_length = len & 0xfff;
1016 desc->plcp_length_hi = plcp_length >> 6;
1017 desc->plcp_length_lo = plcp_length & 0x3f;
1018 } else {
1019 plcp_length = (16 * len + rate - 1) / rate;
1020 if (rate == 22) {
1021 remainder = (16 * len) % 22;
1022 if (remainder != 0 && remainder < 7)
1023 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1024 }
1025 desc->plcp_length_hi = plcp_length >> 8;
1026 desc->plcp_length_lo = plcp_length & 0xff;
1027
1028 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1029 desc->plcp_signal |= 0x08;
1030 }
1031}
1032
1033static int
1034rum_sendprot(struct rum_softc *sc,
1035 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1036{
1037 struct ieee80211com *ic = ni->ni_ic;
1038 const struct ieee80211_frame *wh;
1039 struct rum_tx_data *data;
1040 struct mbuf *mprot;
1041 int protrate, ackrate, pktlen, flags, isshort;
1042 uint16_t dur;
1043
1044 RUM_LOCK_ASSERT(sc, MA_OWNED);
1045 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1046 ("protection %d", prot));
1047
1048 wh = mtod(m, const struct ieee80211_frame *);
1049 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1050
1051 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1052 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1053
1054 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1055 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1056 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1057 flags = RT2573_TX_MORE_FRAG;
1058 if (prot == IEEE80211_PROT_RTSCTS) {
1059 /* NB: CTS is the same size as an ACK */
1060 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1061 flags |= RT2573_TX_NEED_ACK;
1062 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1063 } else {
1064 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1065 }
1066 if (mprot == NULL) {
1067 /* XXX stat + msg */
1068 return (ENOBUFS);
1069 }
1070 data = STAILQ_FIRST(&sc->tx_free);
1071 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1072 sc->tx_nfree--;
1073
1074 data->m = mprot;
1075 data->ni = ieee80211_ref_node(ni);
1076 data->rate = protrate;
1077 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate);
1078
1079 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1080 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1081
1082 return 0;
1083}
1084
1085static int
1086rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1087{
1088 struct ieee80211vap *vap = ni->ni_vap;
1089 struct ifnet *ifp = sc->sc_ifp;
1090 struct ieee80211com *ic = ifp->if_l2com;
1091 struct rum_tx_data *data;
1092 struct ieee80211_frame *wh;
1093 const struct ieee80211_txparam *tp;
1094 struct ieee80211_key *k;
1095 uint32_t flags = 0;
1096 uint16_t dur;
1097
1098 RUM_LOCK_ASSERT(sc, MA_OWNED);
1099
1100 data = STAILQ_FIRST(&sc->tx_free);
1101 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1102 sc->tx_nfree--;
1103
1104 wh = mtod(m0, struct ieee80211_frame *);
1105 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1106 k = ieee80211_crypto_encap(ni, m0);
1107 if (k == NULL) {
1108 m_freem(m0);
1109 return ENOBUFS;
1110 }
1111 wh = mtod(m0, struct ieee80211_frame *);
1112 }
1113
1114 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1115
1116 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1117 flags |= RT2573_TX_NEED_ACK;
1118
1119 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1120 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1121 *(uint16_t *)wh->i_dur = htole16(dur);
1122
1123 /* tell hardware to add timestamp for probe responses */
1124 if ((wh->i_fc[0] &
1125 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1126 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1127 flags |= RT2573_TX_TIMESTAMP;
1128 }
1129
1130 data->m = m0;
1131 data->ni = ni;
1132 data->rate = tp->mgmtrate;
1133
1134 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate);
1135
1136 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1137 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1138
1139 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1140 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1141
1142 return (0);
1143}
1144
1145static int
1146rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1147 const struct ieee80211_bpf_params *params)
1148{
1149 struct ieee80211com *ic = ni->ni_ic;
1150 struct rum_tx_data *data;
1151 uint32_t flags;
1152 int rate, error;
1153
1154 RUM_LOCK_ASSERT(sc, MA_OWNED);
1155 KASSERT(params != NULL, ("no raw xmit params"));
1156
1157 rate = params->ibp_rate0;
1158 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1159 m_freem(m0);
1160 return EINVAL;
1161 }
1162 flags = 0;
1163 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1164 flags |= RT2573_TX_NEED_ACK;
1165 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1166 error = rum_sendprot(sc, m0, ni,
1167 params->ibp_flags & IEEE80211_BPF_RTS ?
1168 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1169 rate);
1170 if (error || sc->tx_nfree == 0) {
1171 m_freem(m0);
1172 return ENOBUFS;
1173 }
1174 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1175 }
1176
1177 data = STAILQ_FIRST(&sc->tx_free);
1178 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1179 sc->tx_nfree--;
1180
1181 data->m = m0;
1182 data->ni = ni;
1183 data->rate = rate;
1184
1185 /* XXX need to setup descriptor ourself */
1186 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1187
1188 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1189 m0->m_pkthdr.len, rate);
1190
1191 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1192 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1193
1194 return 0;
1195}
1196
1197static int
1198rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1199{
1200 struct ieee80211vap *vap = ni->ni_vap;
1201 struct ifnet *ifp = sc->sc_ifp;
1202 struct ieee80211com *ic = ifp->if_l2com;
1203 struct rum_tx_data *data;
1204 struct ieee80211_frame *wh;
1205 const struct ieee80211_txparam *tp;
1206 struct ieee80211_key *k;
1207 uint32_t flags = 0;
1208 uint16_t dur;
1209 int error, rate;
1210
1211 RUM_LOCK_ASSERT(sc, MA_OWNED);
1212
1213 wh = mtod(m0, struct ieee80211_frame *);
1214
1215 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1216 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1217 rate = tp->mcastrate;
1218 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1219 rate = tp->ucastrate;
1220 else
1221 rate = ni->ni_txrate;
1222
1223 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1224 k = ieee80211_crypto_encap(ni, m0);
1225 if (k == NULL) {
1226 m_freem(m0);
1227 return ENOBUFS;
1228 }
1229
1230 /* packet header may have moved, reset our local pointer */
1231 wh = mtod(m0, struct ieee80211_frame *);
1232 }
1233
1234 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1235 int prot = IEEE80211_PROT_NONE;
1236 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1237 prot = IEEE80211_PROT_RTSCTS;
1238 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1239 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1240 prot = ic->ic_protmode;
1241 if (prot != IEEE80211_PROT_NONE) {
1242 error = rum_sendprot(sc, m0, ni, prot, rate);
1243 if (error || sc->tx_nfree == 0) {
1244 m_freem(m0);
1245 return ENOBUFS;
1246 }
1247 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1248 }
1249 }
1250
1251 data = STAILQ_FIRST(&sc->tx_free);
1252 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1253 sc->tx_nfree--;
1254
1255 data->m = m0;
1256 data->ni = ni;
1257 data->rate = rate;
1258
1259 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1260 flags |= RT2573_TX_NEED_ACK;
1261 flags |= RT2573_TX_MORE_FRAG;
1262
1263 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1264 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1265 *(uint16_t *)wh->i_dur = htole16(dur);
1266 }
1267
1268 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1269
1270 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1271 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1272
1273 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1274 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1275
1276 return 0;
1277}
1278
1279static void
1280rum_start(struct ifnet *ifp)
1281{
1282 struct rum_softc *sc = ifp->if_softc;
1283 struct ieee80211_node *ni;
1284 struct mbuf *m;
1285
1286 RUM_LOCK(sc);
1287 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1288 RUM_UNLOCK(sc);
1289 return;
1290 }
1291 for (;;) {
1292 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1293 if (m == NULL)
1294 break;
1295 if (sc->tx_nfree < RUM_TX_MINFREE) {
1296 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1297 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1298 break;
1299 }
1300 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1301 if (rum_tx_data(sc, m, ni) != 0) {
1302 ieee80211_free_node(ni);
1303 ifp->if_oerrors++;
1304 break;
1305 }
1306 }
1307 RUM_UNLOCK(sc);
1308}
1309
1310static int
1311rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1312{
1313 struct rum_softc *sc = ifp->if_softc;
1314 struct ieee80211com *ic = ifp->if_l2com;
1315 struct ifreq *ifr = (struct ifreq *) data;
1316 int error = 0, startall = 0;
1317
1318 switch (cmd) {
1319 case SIOCSIFFLAGS:
1320 RUM_LOCK(sc);
1321 if (ifp->if_flags & IFF_UP) {
1322 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1323 rum_init_locked(sc);
1324 startall = 1;
1325 } else
1326 rum_setpromisc(sc);
1327 } else {
1328 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1329 rum_stop(sc);
1330 }
1331 RUM_UNLOCK(sc);
1332 if (startall)
1333 ieee80211_start_all(ic);
1334 break;
1335 case SIOCGIFMEDIA:
1336 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1337 break;
1338 case SIOCGIFADDR:
1339 error = ether_ioctl(ifp, cmd, data);
1340 break;
1341 default:
1342 error = EINVAL;
1343 break;
1344 }
1345 return error;
1346}
1347
1348static void
1349rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1350{
1351 struct usb_device_request req;
1352 usb_error_t error;
1353
1354 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1355 req.bRequest = RT2573_READ_EEPROM;
1356 USETW(req.wValue, 0);
1357 USETW(req.wIndex, addr);
1358 USETW(req.wLength, len);
1359
1360 error = rum_do_request(sc, &req, buf);
1361 if (error != 0) {
1362 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1363 usbd_errstr(error));
1364 }
1365}
1366
1367static uint32_t
1368rum_read(struct rum_softc *sc, uint16_t reg)
1369{
1370 uint32_t val;
1371
1372 rum_read_multi(sc, reg, &val, sizeof val);
1373
1374 return le32toh(val);
1375}
1376
1377static void
1378rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1379{
1380 struct usb_device_request req;
1381 usb_error_t error;
1382
1383 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1384 req.bRequest = RT2573_READ_MULTI_MAC;
1385 USETW(req.wValue, 0);
1386 USETW(req.wIndex, reg);
1387 USETW(req.wLength, len);
1388
1389 error = rum_do_request(sc, &req, buf);
1390 if (error != 0) {
1391 device_printf(sc->sc_dev,
1392 "could not multi read MAC register: %s\n",
1393 usbd_errstr(error));
1394 }
1395}
1396
1397static usb_error_t
1398rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1399{
1400 uint32_t tmp = htole32(val);
1401
1402 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1403}
1404
1405static usb_error_t
1406rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1407{
1408 struct usb_device_request req;
1409 usb_error_t error;
1410
1411 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1412 req.bRequest = RT2573_WRITE_MULTI_MAC;
1413 USETW(req.wValue, 0);
1414 USETW(req.wIndex, reg);
1415 USETW(req.wLength, len);
1416
1417 error = rum_do_request(sc, &req, buf);
1418 if (error != 0) {
1419 device_printf(sc->sc_dev,
1420 "could not multi write MAC register: %s\n",
1421 usbd_errstr(error));
1422 }
1423 return (error);
1424}
1425
1426static void
1427rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1428{
1429 uint32_t tmp;
1430 int ntries;
1431
1432 DPRINTFN(2, "reg=0x%08x\n", reg);
1433
1434 for (ntries = 0; ntries < 100; ntries++) {
1435 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1436 break;
1437 if (rum_pause(sc, hz / 100))
1438 break;
1439 }
1440 if (ntries == 100) {
1441 device_printf(sc->sc_dev, "could not write to BBP\n");
1442 return;
1443 }
1444
1445 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1446 rum_write(sc, RT2573_PHY_CSR3, tmp);
1447}
1448
1449static uint8_t
1450rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1451{
1452 uint32_t val;
1453 int ntries;
1454
1455 DPRINTFN(2, "reg=0x%08x\n", reg);
1456
1457 for (ntries = 0; ntries < 100; ntries++) {
1458 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1459 break;
1460 if (rum_pause(sc, hz / 100))
1461 break;
1462 }
1463 if (ntries == 100) {
1464 device_printf(sc->sc_dev, "could not read BBP\n");
1465 return 0;
1466 }
1467
1468 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1469 rum_write(sc, RT2573_PHY_CSR3, val);
1470
1471 for (ntries = 0; ntries < 100; ntries++) {
1472 val = rum_read(sc, RT2573_PHY_CSR3);
1473 if (!(val & RT2573_BBP_BUSY))
1474 return val & 0xff;
1475 if (rum_pause(sc, hz / 100))
1476 break;
1477 }
1478
1479 device_printf(sc->sc_dev, "could not read BBP\n");
1480 return 0;
1481}
1482
1483static void
1484rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1485{
1486 uint32_t tmp;
1487 int ntries;
1488
1489 for (ntries = 0; ntries < 100; ntries++) {
1490 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1491 break;
1492 if (rum_pause(sc, hz / 100))
1493 break;
1494 }
1495 if (ntries == 100) {
1496 device_printf(sc->sc_dev, "could not write to RF\n");
1497 return;
1498 }
1499
1500 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1501 (reg & 3);
1502 rum_write(sc, RT2573_PHY_CSR4, tmp);
1503
1504 /* remember last written value in sc */
1505 sc->rf_regs[reg] = val;
1506
1507 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1508}
1509
1510static void
1511rum_select_antenna(struct rum_softc *sc)
1512{
1513 uint8_t bbp4, bbp77;
1514 uint32_t tmp;
1515
1516 bbp4 = rum_bbp_read(sc, 4);
1517 bbp77 = rum_bbp_read(sc, 77);
1518
1519 /* TBD */
1520
1521 /* make sure Rx is disabled before switching antenna */
1522 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1523 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1524
1525 rum_bbp_write(sc, 4, bbp4);
1526 rum_bbp_write(sc, 77, bbp77);
1527
1528 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1529}
1530
1531/*
1532 * Enable multi-rate retries for frames sent at OFDM rates.
1533 * In 802.11b/g mode, allow fallback to CCK rates.
1534 */
1535static void
1536rum_enable_mrr(struct rum_softc *sc)
1537{
1538 struct ifnet *ifp = sc->sc_ifp;
1539 struct ieee80211com *ic = ifp->if_l2com;
1540 uint32_t tmp;
1541
1542 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1543
1544 tmp &= ~RT2573_MRR_CCK_FALLBACK;
1545 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
1546 tmp |= RT2573_MRR_CCK_FALLBACK;
1547 tmp |= RT2573_MRR_ENABLED;
1548
1549 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1550}
1551
1552static void
1553rum_set_txpreamble(struct rum_softc *sc)
1554{
1555 struct ifnet *ifp = sc->sc_ifp;
1556 struct ieee80211com *ic = ifp->if_l2com;
1557 uint32_t tmp;
1558
1559 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1560
1561 tmp &= ~RT2573_SHORT_PREAMBLE;
1562 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1563 tmp |= RT2573_SHORT_PREAMBLE;
1564
1565 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1566}
1567
1568static void
1569rum_set_basicrates(struct rum_softc *sc)
1570{
1571 struct ifnet *ifp = sc->sc_ifp;
1572 struct ieee80211com *ic = ifp->if_l2com;
1573
1574 /* update basic rate set */
1575 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1576 /* 11b basic rates: 1, 2Mbps */
1577 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1578 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
1579 /* 11a basic rates: 6, 12, 24Mbps */
1580 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1581 } else {
1582 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
1583 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
1584 }
1585}
1586
1587/*
1588 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1589 * driver.
1590 */
1591static void
1592rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1593{
1594 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1595 uint32_t tmp;
1596
1597 /* update all BBP registers that depend on the band */
1598 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1599 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1600 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1601 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1602 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1603 }
1604 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1605 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1606 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1607 }
1608
1609 sc->bbp17 = bbp17;
1610 rum_bbp_write(sc, 17, bbp17);
1611 rum_bbp_write(sc, 96, bbp96);
1612 rum_bbp_write(sc, 104, bbp104);
1613
1614 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1615 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1616 rum_bbp_write(sc, 75, 0x80);
1617 rum_bbp_write(sc, 86, 0x80);
1618 rum_bbp_write(sc, 88, 0x80);
1619 }
1620
1621 rum_bbp_write(sc, 35, bbp35);
1622 rum_bbp_write(sc, 97, bbp97);
1623 rum_bbp_write(sc, 98, bbp98);
1624
1625 tmp = rum_read(sc, RT2573_PHY_CSR0);
1626 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1627 if (IEEE80211_IS_CHAN_2GHZ(c))
1628 tmp |= RT2573_PA_PE_2GHZ;
1629 else
1630 tmp |= RT2573_PA_PE_5GHZ;
1631 rum_write(sc, RT2573_PHY_CSR0, tmp);
1632}
1633
1634static void
1635rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1636{
1637 struct ifnet *ifp = sc->sc_ifp;
1638 struct ieee80211com *ic = ifp->if_l2com;
1639 const struct rfprog *rfprog;
1640 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1641 int8_t power;
1642 int i, chan;
1643
1644 chan = ieee80211_chan2ieee(ic, c);
1645 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1646 return;
1647
1648 /* select the appropriate RF settings based on what EEPROM says */
1649 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1650 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1651
1652 /* find the settings for this channel (we know it exists) */
1653 for (i = 0; rfprog[i].chan != chan; i++);
1654
1655 power = sc->txpow[i];
1656 if (power < 0) {
1657 bbp94 += power;
1658 power = 0;
1659 } else if (power > 31) {
1660 bbp94 += power - 31;
1661 power = 31;
1662 }
1663
1664 /*
1665 * If we are switching from the 2GHz band to the 5GHz band or
1666 * vice-versa, BBP registers need to be reprogrammed.
1667 */
1668 if (c->ic_flags != ic->ic_curchan->ic_flags) {
1669 rum_select_band(sc, c);
1670 rum_select_antenna(sc);
1671 }
1672 ic->ic_curchan = c;
1673
1674 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1675 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1676 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1677 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1678
1679 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1680 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1681 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1682 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1683
1684 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1685 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1686 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1687 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1688
1689 rum_pause(sc, hz / 100);
1690
1691 /* enable smart mode for MIMO-capable RFs */
1692 bbp3 = rum_bbp_read(sc, 3);
1693
1694 bbp3 &= ~RT2573_SMART_MODE;
1695 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1696 bbp3 |= RT2573_SMART_MODE;
1697
1698 rum_bbp_write(sc, 3, bbp3);
1699
1700 if (bbp94 != RT2573_BBPR94_DEFAULT)
1701 rum_bbp_write(sc, 94, bbp94);
1702
1703 /* give the chip some extra time to do the switchover */
1704 rum_pause(sc, hz / 100);
1705}
1706
1707/*
1708 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1709 * and HostAP operating modes.
1710 */
1711static void
1712rum_enable_tsf_sync(struct rum_softc *sc)
1713{
1714 struct ifnet *ifp = sc->sc_ifp;
1715 struct ieee80211com *ic = ifp->if_l2com;
1716 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1717 uint32_t tmp;
1718
1719 if (vap->iv_opmode != IEEE80211_M_STA) {
1720 /*
1721 * Change default 16ms TBTT adjustment to 8ms.
1722 * Must be done before enabling beacon generation.
1723 */
1724 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1725 }
1726
1727 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1728
1729 /* set beacon interval (in 1/16ms unit) */
1730 tmp |= vap->iv_bss->ni_intval * 16;
1731
1732 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1733 if (vap->iv_opmode == IEEE80211_M_STA)
1734 tmp |= RT2573_TSF_MODE(1);
1735 else
1736 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1737
1738 rum_write(sc, RT2573_TXRX_CSR9, tmp);
1739}
1740
1741static void
1742rum_enable_tsf(struct rum_softc *sc)
1743{
1744 rum_write(sc, RT2573_TXRX_CSR9,
1745 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) |
1746 RT2573_TSF_TICKING | RT2573_TSF_MODE(2));
1747}
1748
1749static void
1750rum_update_slot(struct ifnet *ifp)
1751{
1752 struct rum_softc *sc = ifp->if_softc;
1753 struct ieee80211com *ic = ifp->if_l2com;
1754 uint8_t slottime;
1755 uint32_t tmp;
1756
1757 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1758
1759 tmp = rum_read(sc, RT2573_MAC_CSR9);
1760 tmp = (tmp & ~0xff) | slottime;
1761 rum_write(sc, RT2573_MAC_CSR9, tmp);
1762
1763 DPRINTF("setting slot time to %uus\n", slottime);
1764}
1765
1766static void
1767rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1768{
1769 uint32_t tmp;
1770
1771 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1772 rum_write(sc, RT2573_MAC_CSR4, tmp);
1773
1774 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1775 rum_write(sc, RT2573_MAC_CSR5, tmp);
1776}
1777
1778static void
1779rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1780{
1781 uint32_t tmp;
1782
1783 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1784 rum_write(sc, RT2573_MAC_CSR2, tmp);
1785
1786 tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1787 rum_write(sc, RT2573_MAC_CSR3, tmp);
1788}
1789
1790static void
1791rum_setpromisc(struct rum_softc *sc)
1792{
1793 struct ifnet *ifp = sc->sc_ifp;
1794 uint32_t tmp;
1795
1796 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1797
1798 tmp &= ~RT2573_DROP_NOT_TO_ME;
1799 if (!(ifp->if_flags & IFF_PROMISC))
1800 tmp |= RT2573_DROP_NOT_TO_ME;
1801
1802 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1803
1804 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1805 "entering" : "leaving");
1806}
1807
1808static void
1809rum_update_promisc(struct ifnet *ifp)
1810{
1811 struct rum_softc *sc = ifp->if_softc;
1812
1813 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1814 return;
1815
1816 RUM_LOCK(sc);
1817 rum_setpromisc(sc);
1818 RUM_UNLOCK(sc);
1819}
1820
1821static void
1822rum_update_mcast(struct ifnet *ifp)
1823{
1824
1825 /* XXX do nothing? */
1826}
1827
1828static const char *
1829rum_get_rf(int rev)
1830{
1831 switch (rev) {
1832 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
1833 case RT2573_RF_2528: return "RT2528";
1834 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
1835 case RT2573_RF_5226: return "RT5226";
1836 default: return "unknown";
1837 }
1838}
1839
1840static void
1841rum_read_eeprom(struct rum_softc *sc)
1842{
1843 uint16_t val;
1844#ifdef RUM_DEBUG
1845 int i;
1846#endif
1847
1848 /* read MAC address */
1849 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6);
1850
1851 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1852 val = le16toh(val);
1853 sc->rf_rev = (val >> 11) & 0x1f;
1854 sc->hw_radio = (val >> 10) & 0x1;
1855 sc->rx_ant = (val >> 4) & 0x3;
1856 sc->tx_ant = (val >> 2) & 0x3;
1857 sc->nb_ant = val & 0x3;
1858
1859 DPRINTF("RF revision=%d\n", sc->rf_rev);
1860
1861 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1862 val = le16toh(val);
1863 sc->ext_5ghz_lna = (val >> 6) & 0x1;
1864 sc->ext_2ghz_lna = (val >> 4) & 0x1;
1865
1866 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1867 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
1868
1869 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1870 val = le16toh(val);
1871 if ((val & 0xff) != 0xff)
1872 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
1873
1874 /* Only [-10, 10] is valid */
1875 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1876 sc->rssi_2ghz_corr = 0;
1877
1878 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1879 val = le16toh(val);
1880 if ((val & 0xff) != 0xff)
1881 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
1882
1883 /* Only [-10, 10] is valid */
1884 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1885 sc->rssi_5ghz_corr = 0;
1886
1887 if (sc->ext_2ghz_lna)
1888 sc->rssi_2ghz_corr -= 14;
1889 if (sc->ext_5ghz_lna)
1890 sc->rssi_5ghz_corr -= 14;
1891
1892 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1893 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
1894
1895 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1896 val = le16toh(val);
1897 if ((val & 0xff) != 0xff)
1898 sc->rffreq = val & 0xff;
1899
1900 DPRINTF("RF freq=%d\n", sc->rffreq);
1901
1902 /* read Tx power for all a/b/g channels */
1903 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1904 /* XXX default Tx power for 802.11a channels */
1905 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1906#ifdef RUM_DEBUG
1907 for (i = 0; i < 14; i++)
1908 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
1909#endif
1910
1911 /* read default values for BBP registers */
1912 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1913#ifdef RUM_DEBUG
1914 for (i = 0; i < 14; i++) {
1915 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1916 continue;
1917 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1918 sc->bbp_prom[i].val);
1919 }
1920#endif
1921}
1922
1923static int
1924rum_bbp_init(struct rum_softc *sc)
1925{
1926#define N(a) (sizeof (a) / sizeof ((a)[0]))
1927 int i, ntries;
1928
1929 /* wait for BBP to be ready */
1930 for (ntries = 0; ntries < 100; ntries++) {
1931 const uint8_t val = rum_bbp_read(sc, 0);
1932 if (val != 0 && val != 0xff)
1933 break;
1934 if (rum_pause(sc, hz / 100))
1935 break;
1936 }
1937 if (ntries == 100) {
1938 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
1939 return EIO;
1940 }
1941
1942 /* initialize BBP registers to default values */
1943 for (i = 0; i < N(rum_def_bbp); i++)
1944 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1945
1946 /* write vendor-specific BBP values (from EEPROM) */
1947 for (i = 0; i < 16; i++) {
1948 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1949 continue;
1950 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1951 }
1952
1953 return 0;
1954#undef N
1955}
1956
1957static void
1958rum_init_locked(struct rum_softc *sc)
1959{
1960#define N(a) (sizeof (a) / sizeof ((a)[0]))
1961 struct ifnet *ifp = sc->sc_ifp;
1962 struct ieee80211com *ic = ifp->if_l2com;
1963 uint32_t tmp;
1964 usb_error_t error;
1965 int i, ntries;
1966
1967 RUM_LOCK_ASSERT(sc, MA_OWNED);
1968
1969 rum_stop(sc);
1970
1971 /* initialize MAC registers to default values */
1972 for (i = 0; i < N(rum_def_mac); i++)
1973 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
1974
1975 /* set host ready */
1976 rum_write(sc, RT2573_MAC_CSR1, 3);
1977 rum_write(sc, RT2573_MAC_CSR1, 0);
1978
1979 /* wait for BBP/RF to wakeup */
1980 for (ntries = 0; ntries < 100; ntries++) {
1981 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
1982 break;
1983 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
1984 if (rum_pause(sc, hz / 100))
1985 break;
1986 }
1987 if (ntries == 100) {
1988 device_printf(sc->sc_dev,
1989 "timeout waiting for BBP/RF to wakeup\n");
1990 goto fail;
1991 }
1992
1993 if ((error = rum_bbp_init(sc)) != 0)
1994 goto fail;
1995
1996 /* select default channel */
1997 rum_select_band(sc, ic->ic_curchan);
1998 rum_select_antenna(sc);
1999 rum_set_chan(sc, ic->ic_curchan);
2000
2001 /* clear STA registers */
2002 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2003
2004 rum_set_macaddr(sc, IF_LLADDR(ifp));
2005
2006 /* initialize ASIC */
2007 rum_write(sc, RT2573_MAC_CSR1, 4);
2008
2009 /*
2010 * Allocate Tx and Rx xfer queues.
2011 */
2012 rum_setup_tx_list(sc);
2013
2014 /* update Rx filter */
2015 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2016
2017 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2018 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2019 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2020 RT2573_DROP_ACKCTS;
2021 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2022 tmp |= RT2573_DROP_TODS;
2023 if (!(ifp->if_flags & IFF_PROMISC))
2024 tmp |= RT2573_DROP_NOT_TO_ME;
2025 }
2026 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2027
2028 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2029 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2030 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2031 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2032 return;
2033
2034fail: rum_stop(sc);
2035#undef N
2036}
2037
2038static void
2039rum_init(void *priv)
2040{
2041 struct rum_softc *sc = priv;
2042 struct ifnet *ifp = sc->sc_ifp;
2043 struct ieee80211com *ic = ifp->if_l2com;
2044
2045 RUM_LOCK(sc);
2046 rum_init_locked(sc);
2047 RUM_UNLOCK(sc);
2048
2049 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2050 ieee80211_start_all(ic); /* start all vap's */
2051}
2052
2053static void
2054rum_stop(struct rum_softc *sc)
2055{
2056 struct ifnet *ifp = sc->sc_ifp;
2057 uint32_t tmp;
2058
2059 RUM_LOCK_ASSERT(sc, MA_OWNED);
2060
2061 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2062
2063 RUM_UNLOCK(sc);
2064
2065 /*
2066 * Drain the USB transfers, if not already drained:
2067 */
2068 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2069 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2070
2071 RUM_LOCK(sc);
2072
2073 rum_unsetup_tx_list(sc);
2074
2075 /* disable Rx */
2076 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2077 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2078
2079 /* reset ASIC */
2080 rum_write(sc, RT2573_MAC_CSR1, 3);
2081 rum_write(sc, RT2573_MAC_CSR1, 0);
2082}
2083
2084static void
2085rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2086{
2087 struct usb_device_request req;
2088 uint16_t reg = RT2573_MCU_CODE_BASE;
2089 usb_error_t err;
2090
2091 /* copy firmware image into NIC */
2092 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2093 err = rum_write(sc, reg, UGETDW(ucode));
2094 if (err) {
2095 /* firmware already loaded ? */
2096 device_printf(sc->sc_dev, "Firmware load "
2097 "failure! (ignored)\n");
2098 break;
2099 }
2100 }
2101
2102 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2103 req.bRequest = RT2573_MCU_CNTL;
2104 USETW(req.wValue, RT2573_MCU_RUN);
2105 USETW(req.wIndex, 0);
2106 USETW(req.wLength, 0);
2107
2108 err = rum_do_request(sc, &req, NULL);
2109 if (err != 0) {
2110 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2111 usbd_errstr(err));
2112 }
2113
2114 /* give the chip some time to boot */
2115 rum_pause(sc, hz / 8);
2116}
2117
2118static int
2119rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2120{
2121 struct ieee80211com *ic = vap->iv_ic;
2122 const struct ieee80211_txparam *tp;
2123 struct rum_tx_desc desc;
2124 struct mbuf *m0;
2125
2126 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo);
2127 if (m0 == NULL) {
2128 return ENOBUFS;
2129 }
2130
2131 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2132 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2133 m0->m_pkthdr.len, tp->mgmtrate);
2134
2135 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2136 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2137
2138 /* copy beacon header and payload into NIC memory */
2139 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2140 m0->m_pkthdr.len);
2141
2142 m_freem(m0);
2143
2144 return 0;
2145}
2146
2147static int
2148rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2149 const struct ieee80211_bpf_params *params)
2150{
2151 struct ifnet *ifp = ni->ni_ic->ic_ifp;
2152 struct rum_softc *sc = ifp->if_softc;
2153
2154 RUM_LOCK(sc);
2155 /* prevent management frames from being sent if we're not ready */
2156 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2157 RUM_UNLOCK(sc);
2158 m_freem(m);
2159 ieee80211_free_node(ni);
2160 return ENETDOWN;
2161 }
2162 if (sc->tx_nfree < RUM_TX_MINFREE) {
2163 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2164 RUM_UNLOCK(sc);
2165 m_freem(m);
2166 ieee80211_free_node(ni);
2167 return EIO;
2168 }
2169
2170 ifp->if_opackets++;
2171
2172 if (params == NULL) {
2173 /*
2174 * Legacy path; interpret frame contents to decide
2175 * precisely how to send the frame.
2176 */
2177 if (rum_tx_mgt(sc, m, ni) != 0)
2178 goto bad;
2179 } else {
2180 /*
2181 * Caller supplied explicit parameters to use in
2182 * sending the frame.
2183 */
2184 if (rum_tx_raw(sc, m, ni, params) != 0)
2185 goto bad;
2186 }
2187 RUM_UNLOCK(sc);
2188
2189 return 0;
2190bad:
2191 ifp->if_oerrors++;
2192 RUM_UNLOCK(sc);
2193 ieee80211_free_node(ni);
2194 return EIO;
2195}
2196
2197static void
2198rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
2199{
2200 struct ieee80211vap *vap = ni->ni_vap;
2201 struct rum_vap *rvp = RUM_VAP(vap);
2202
2203 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
2204 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2205
2206 ieee80211_ratectl_node_init(ni);
2207
2208 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2209}
2210
2211static void
2212rum_ratectl_timeout(void *arg)
2213{
2214 struct rum_vap *rvp = arg;
2215 struct ieee80211vap *vap = &rvp->vap;
2216 struct ieee80211com *ic = vap->iv_ic;
2217
2218 ieee80211_runtask(ic, &rvp->ratectl_task);
2219}
2220
2221static void
2222rum_ratectl_task(void *arg, int pending)
2223{
2224 struct rum_vap *rvp = arg;
2225 struct ieee80211vap *vap = &rvp->vap;
2226 struct ieee80211com *ic = vap->iv_ic;
2227 struct ifnet *ifp = ic->ic_ifp;
2228 struct rum_softc *sc = ifp->if_softc;
2229 struct ieee80211_node *ni = vap->iv_bss;
2230 int ok, fail;
2231 int sum, retrycnt;
2232
2233 RUM_LOCK(sc);
2234 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
2235 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
2236
2237 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */
2238 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */
2239 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
2240 sum = ok+fail;
2241 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail;
2242
2243 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
2244 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2245
2246 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */
2247
2248 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2249 RUM_UNLOCK(sc);
2250}
2251
2252static void
2253rum_scan_start(struct ieee80211com *ic)
2254{
2255 struct ifnet *ifp = ic->ic_ifp;
2256 struct rum_softc *sc = ifp->if_softc;
2257 uint32_t tmp;
2258
2259 RUM_LOCK(sc);
2260 /* abort TSF synchronization */
2261 tmp = rum_read(sc, RT2573_TXRX_CSR9);
2262 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
2263 rum_set_bssid(sc, ifp->if_broadcastaddr);
2264 RUM_UNLOCK(sc);
2265
2266}
2267
2268static void
2269rum_scan_end(struct ieee80211com *ic)
2270{
2271 struct rum_softc *sc = ic->ic_ifp->if_softc;
2272
2273 RUM_LOCK(sc);
2274 rum_enable_tsf_sync(sc);
2275 rum_set_bssid(sc, sc->sc_bssid);
2276 RUM_UNLOCK(sc);
2277
2278}
2279
2280static void
2281rum_set_channel(struct ieee80211com *ic)
2282{
2283 struct rum_softc *sc = ic->ic_ifp->if_softc;
2284
2285 RUM_LOCK(sc);
2286 rum_set_chan(sc, ic->ic_curchan);
2287 RUM_UNLOCK(sc);
2288}
2289
2290static int
2291rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2292{
2293 struct ifnet *ifp = sc->sc_ifp;
2294 struct ieee80211com *ic = ifp->if_l2com;
2295 int lna, agc, rssi;
2296
2297 lna = (raw >> 5) & 0x3;
2298 agc = raw & 0x1f;
2299
2300 if (lna == 0) {
2301 /*
2302 * No RSSI mapping
2303 *
2304 * NB: Since RSSI is relative to noise floor, -1 is
2305 * adequate for caller to know error happened.
2306 */
2307 return -1;
2308 }
2309
2310 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2311
2312 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2313 rssi += sc->rssi_2ghz_corr;
2314
2315 if (lna == 1)
2316 rssi -= 64;
2317 else if (lna == 2)
2318 rssi -= 74;
2319 else if (lna == 3)
2320 rssi -= 90;
2321 } else {
2322 rssi += sc->rssi_5ghz_corr;
2323
2324 if (!sc->ext_5ghz_lna && lna != 1)
2325 rssi += 4;
2326
2327 if (lna == 1)
2328 rssi -= 64;
2329 else if (lna == 2)
2330 rssi -= 86;
2331 else if (lna == 3)
2332 rssi -= 100;
2333 }
2334 return rssi;
2335}
2336
2337static int
2338rum_pause(struct rum_softc *sc, int timeout)
2339{
2340
2341 usb_pause_mtx(&sc->sc_mtx, timeout);
2342 return (0);
2343}
2344
2345static device_method_t rum_methods[] = {
2346 /* Device interface */
2347 DEVMETHOD(device_probe, rum_match),
2348 DEVMETHOD(device_attach, rum_attach),
2349 DEVMETHOD(device_detach, rum_detach),
2350
2351 { 0, 0 }
2352};
2353
2354static driver_t rum_driver = {
2355 .name = "rum",
2356 .methods = rum_methods,
2357 .size = sizeof(struct rum_softc),
2358};
2359
2360static devclass_t rum_devclass;
2361
2362DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
| 142static device_probe_t rum_match;
143static device_attach_t rum_attach;
144static device_detach_t rum_detach;
145
146static usb_callback_t rum_bulk_read_callback;
147static usb_callback_t rum_bulk_write_callback;
148
149static usb_error_t rum_do_request(struct rum_softc *sc,
150 struct usb_device_request *req, void *data);
151static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
152 const char name[IFNAMSIZ], int unit, int opmode,
153 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN],
154 const uint8_t mac[IEEE80211_ADDR_LEN]);
155static void rum_vap_delete(struct ieee80211vap *);
156static void rum_tx_free(struct rum_tx_data *, int);
157static void rum_setup_tx_list(struct rum_softc *);
158static void rum_unsetup_tx_list(struct rum_softc *);
159static int rum_newstate(struct ieee80211vap *,
160 enum ieee80211_state, int);
161static void rum_setup_tx_desc(struct rum_softc *,
162 struct rum_tx_desc *, uint32_t, uint16_t, int,
163 int);
164static int rum_tx_mgt(struct rum_softc *, struct mbuf *,
165 struct ieee80211_node *);
166static int rum_tx_raw(struct rum_softc *, struct mbuf *,
167 struct ieee80211_node *,
168 const struct ieee80211_bpf_params *);
169static int rum_tx_data(struct rum_softc *, struct mbuf *,
170 struct ieee80211_node *);
171static void rum_start(struct ifnet *);
172static int rum_ioctl(struct ifnet *, u_long, caddr_t);
173static void rum_eeprom_read(struct rum_softc *, uint16_t, void *,
174 int);
175static uint32_t rum_read(struct rum_softc *, uint16_t);
176static void rum_read_multi(struct rum_softc *, uint16_t, void *,
177 int);
178static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t);
179static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *,
180 size_t);
181static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
182static uint8_t rum_bbp_read(struct rum_softc *, uint8_t);
183static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
184static void rum_select_antenna(struct rum_softc *);
185static void rum_enable_mrr(struct rum_softc *);
186static void rum_set_txpreamble(struct rum_softc *);
187static void rum_set_basicrates(struct rum_softc *);
188static void rum_select_band(struct rum_softc *,
189 struct ieee80211_channel *);
190static void rum_set_chan(struct rum_softc *,
191 struct ieee80211_channel *);
192static void rum_enable_tsf_sync(struct rum_softc *);
193static void rum_enable_tsf(struct rum_softc *);
194static void rum_update_slot(struct ifnet *);
195static void rum_set_bssid(struct rum_softc *, const uint8_t *);
196static void rum_set_macaddr(struct rum_softc *, const uint8_t *);
197static void rum_update_mcast(struct ifnet *);
198static void rum_update_promisc(struct ifnet *);
199static void rum_setpromisc(struct rum_softc *);
200static const char *rum_get_rf(int);
201static void rum_read_eeprom(struct rum_softc *);
202static int rum_bbp_init(struct rum_softc *);
203static void rum_init_locked(struct rum_softc *);
204static void rum_init(void *);
205static void rum_stop(struct rum_softc *);
206static void rum_load_microcode(struct rum_softc *, const uint8_t *,
207 size_t);
208static int rum_prepare_beacon(struct rum_softc *,
209 struct ieee80211vap *);
210static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
211 const struct ieee80211_bpf_params *);
212static void rum_scan_start(struct ieee80211com *);
213static void rum_scan_end(struct ieee80211com *);
214static void rum_set_channel(struct ieee80211com *);
215static int rum_get_rssi(struct rum_softc *, uint8_t);
216static void rum_ratectl_start(struct rum_softc *,
217 struct ieee80211_node *);
218static void rum_ratectl_timeout(void *);
219static void rum_ratectl_task(void *, int);
220static int rum_pause(struct rum_softc *, int);
221
222static const struct {
223 uint32_t reg;
224 uint32_t val;
225} rum_def_mac[] = {
226 { RT2573_TXRX_CSR0, 0x025fb032 },
227 { RT2573_TXRX_CSR1, 0x9eaa9eaf },
228 { RT2573_TXRX_CSR2, 0x8a8b8c8d },
229 { RT2573_TXRX_CSR3, 0x00858687 },
230 { RT2573_TXRX_CSR7, 0x2e31353b },
231 { RT2573_TXRX_CSR8, 0x2a2a2a2c },
232 { RT2573_TXRX_CSR15, 0x0000000f },
233 { RT2573_MAC_CSR6, 0x00000fff },
234 { RT2573_MAC_CSR8, 0x016c030a },
235 { RT2573_MAC_CSR10, 0x00000718 },
236 { RT2573_MAC_CSR12, 0x00000004 },
237 { RT2573_MAC_CSR13, 0x00007f00 },
238 { RT2573_SEC_CSR0, 0x00000000 },
239 { RT2573_SEC_CSR1, 0x00000000 },
240 { RT2573_SEC_CSR5, 0x00000000 },
241 { RT2573_PHY_CSR1, 0x000023b0 },
242 { RT2573_PHY_CSR5, 0x00040a06 },
243 { RT2573_PHY_CSR6, 0x00080606 },
244 { RT2573_PHY_CSR7, 0x00000408 },
245 { RT2573_AIFSN_CSR, 0x00002273 },
246 { RT2573_CWMIN_CSR, 0x00002344 },
247 { RT2573_CWMAX_CSR, 0x000034aa }
248};
249
250static const struct {
251 uint8_t reg;
252 uint8_t val;
253} rum_def_bbp[] = {
254 { 3, 0x80 },
255 { 15, 0x30 },
256 { 17, 0x20 },
257 { 21, 0xc8 },
258 { 22, 0x38 },
259 { 23, 0x06 },
260 { 24, 0xfe },
261 { 25, 0x0a },
262 { 26, 0x0d },
263 { 32, 0x0b },
264 { 34, 0x12 },
265 { 37, 0x07 },
266 { 39, 0xf8 },
267 { 41, 0x60 },
268 { 53, 0x10 },
269 { 54, 0x18 },
270 { 60, 0x10 },
271 { 61, 0x04 },
272 { 62, 0x04 },
273 { 75, 0xfe },
274 { 86, 0xfe },
275 { 88, 0xfe },
276 { 90, 0x0f },
277 { 99, 0x00 },
278 { 102, 0x16 },
279 { 107, 0x04 }
280};
281
282static const struct rfprog {
283 uint8_t chan;
284 uint32_t r1, r2, r3, r4;
285} rum_rf5226[] = {
286 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
287 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
288 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
289 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
290 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
291 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
292 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
293 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
294 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
295 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
296 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
297 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
298 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
299 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
300
301 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 },
302 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 },
303 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 },
304 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 },
305
306 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 },
307 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 },
308 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 },
309 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
310 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
311 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
312 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
313 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
314
315 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
316 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
317 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
318 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
319 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
320 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
321 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
322 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
323 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
324 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
325 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
326
327 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
328 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
329 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
330 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
331 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
332}, rum_rf5225[] = {
333 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
334 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
335 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
336 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
337 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
338 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
339 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
340 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
341 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
342 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
343 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
344 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
345 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
346 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
347
348 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 },
349 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 },
350 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 },
351 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 },
352
353 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 },
354 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 },
355 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 },
356 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
357 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
358 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
359 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
360 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
361
362 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
363 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
364 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
365 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
366 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
367 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
368 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
369 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
370 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
371 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
372 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
373
374 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
375 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
376 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
377 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
378 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
379};
380
381static const struct usb_config rum_config[RUM_N_TRANSFER] = {
382 [RUM_BULK_WR] = {
383 .type = UE_BULK,
384 .endpoint = UE_ADDR_ANY,
385 .direction = UE_DIR_OUT,
386 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
387 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
388 .callback = rum_bulk_write_callback,
389 .timeout = 5000, /* ms */
390 },
391 [RUM_BULK_RD] = {
392 .type = UE_BULK,
393 .endpoint = UE_ADDR_ANY,
394 .direction = UE_DIR_IN,
395 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
396 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
397 .callback = rum_bulk_read_callback,
398 },
399};
400
401static int
402rum_match(device_t self)
403{
404 struct usb_attach_arg *uaa = device_get_ivars(self);
405
406 if (uaa->usb_mode != USB_MODE_HOST)
407 return (ENXIO);
408 if (uaa->info.bConfigIndex != 0)
409 return (ENXIO);
410 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
411 return (ENXIO);
412
413 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
414}
415
416static int
417rum_attach(device_t self)
418{
419 struct usb_attach_arg *uaa = device_get_ivars(self);
420 struct rum_softc *sc = device_get_softc(self);
421 struct ieee80211com *ic;
422 struct ifnet *ifp;
423 uint8_t iface_index, bands;
424 uint32_t tmp;
425 int error, ntries;
426
427 device_set_usb_desc(self);
428 sc->sc_udev = uaa->device;
429 sc->sc_dev = self;
430
431 mtx_init(&sc->sc_mtx, device_get_nameunit(self),
432 MTX_NETWORK_LOCK, MTX_DEF);
433
434 iface_index = RT2573_IFACE_INDEX;
435 error = usbd_transfer_setup(uaa->device, &iface_index,
436 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
437 if (error) {
438 device_printf(self, "could not allocate USB transfers, "
439 "err=%s\n", usbd_errstr(error));
440 goto detach;
441 }
442
443 RUM_LOCK(sc);
444 /* retrieve RT2573 rev. no */
445 for (ntries = 0; ntries < 100; ntries++) {
446 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
447 break;
448 if (rum_pause(sc, hz / 100))
449 break;
450 }
451 if (ntries == 100) {
452 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
453 RUM_UNLOCK(sc);
454 goto detach;
455 }
456
457 /* retrieve MAC address and various other things from EEPROM */
458 rum_read_eeprom(sc);
459
460 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
461 tmp, rum_get_rf(sc->rf_rev));
462
463 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
464 RUM_UNLOCK(sc);
465
466 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
467 if (ifp == NULL) {
468 device_printf(sc->sc_dev, "can not if_alloc()\n");
469 goto detach;
470 }
471 ic = ifp->if_l2com;
472
473 ifp->if_softc = sc;
474 if_initname(ifp, "rum", device_get_unit(sc->sc_dev));
475 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
476 ifp->if_init = rum_init;
477 ifp->if_ioctl = rum_ioctl;
478 ifp->if_start = rum_start;
479 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
480 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
481 IFQ_SET_READY(&ifp->if_snd);
482
483 ic->ic_ifp = ifp;
484 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
485
486 /* set device capabilities */
487 ic->ic_caps =
488 IEEE80211_C_STA /* station mode supported */
489 | IEEE80211_C_IBSS /* IBSS mode supported */
490 | IEEE80211_C_MONITOR /* monitor mode supported */
491 | IEEE80211_C_HOSTAP /* HostAp mode supported */
492 | IEEE80211_C_TXPMGT /* tx power management */
493 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
494 | IEEE80211_C_SHSLOT /* short slot time supported */
495 | IEEE80211_C_BGSCAN /* bg scanning supported */
496 | IEEE80211_C_WPA /* 802.11i */
497 | IEEE80211_C_RATECTL /* use ratectl */
498 ;
499
500 bands = 0;
501 setbit(&bands, IEEE80211_MODE_11B);
502 setbit(&bands, IEEE80211_MODE_11G);
503 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226)
504 setbit(&bands, IEEE80211_MODE_11A);
505 ieee80211_init_channels(ic, NULL, &bands);
506
507 ieee80211_ifattach(ic, sc->sc_bssid);
508 ic->ic_update_promisc = rum_update_promisc;
509 ic->ic_raw_xmit = rum_raw_xmit;
510 ic->ic_scan_start = rum_scan_start;
511 ic->ic_scan_end = rum_scan_end;
512 ic->ic_set_channel = rum_set_channel;
513
514 ic->ic_vap_create = rum_vap_create;
515 ic->ic_vap_delete = rum_vap_delete;
516 ic->ic_update_mcast = rum_update_mcast;
517
518 ieee80211_radiotap_attach(ic,
519 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
520 RT2573_TX_RADIOTAP_PRESENT,
521 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
522 RT2573_RX_RADIOTAP_PRESENT);
523
524 if (bootverbose)
525 ieee80211_announce(ic);
526
527 return (0);
528
529detach:
530 rum_detach(self);
531 return (ENXIO); /* failure */
532}
533
534static int
535rum_detach(device_t self)
536{
537 struct rum_softc *sc = device_get_softc(self);
538 struct ifnet *ifp = sc->sc_ifp;
539 struct ieee80211com *ic;
540
541 /* stop all USB transfers */
542 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
543
544 /* free TX list, if any */
545 RUM_LOCK(sc);
546 rum_unsetup_tx_list(sc);
547 RUM_UNLOCK(sc);
548
549 if (ifp) {
550 ic = ifp->if_l2com;
551 ieee80211_ifdetach(ic);
552 if_free(ifp);
553 }
554 mtx_destroy(&sc->sc_mtx);
555
556 return (0);
557}
558
559static usb_error_t
560rum_do_request(struct rum_softc *sc,
561 struct usb_device_request *req, void *data)
562{
563 usb_error_t err;
564 int ntries = 10;
565
566 while (ntries--) {
567 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
568 req, data, 0, NULL, 250 /* ms */);
569 if (err == 0)
570 break;
571
572 DPRINTFN(1, "Control request failed, %s (retrying)\n",
573 usbd_errstr(err));
574 if (rum_pause(sc, hz / 100))
575 break;
576 }
577 return (err);
578}
579
580static struct ieee80211vap *
581rum_vap_create(struct ieee80211com *ic,
582 const char name[IFNAMSIZ], int unit, int opmode, int flags,
583 const uint8_t bssid[IEEE80211_ADDR_LEN],
584 const uint8_t mac[IEEE80211_ADDR_LEN])
585{
586 struct rum_softc *sc = ic->ic_ifp->if_softc;
587 struct rum_vap *rvp;
588 struct ieee80211vap *vap;
589
590 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
591 return NULL;
592 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap),
593 M_80211_VAP, M_NOWAIT | M_ZERO);
594 if (rvp == NULL)
595 return NULL;
596 vap = &rvp->vap;
597 /* enable s/w bmiss handling for sta mode */
598 ieee80211_vap_setup(ic, vap, name, unit, opmode,
599 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac);
600
601 /* override state transition machine */
602 rvp->newstate = vap->iv_newstate;
603 vap->iv_newstate = rum_newstate;
604
605 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
606 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
607 ieee80211_ratectl_init(vap);
608 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
609 /* complete setup */
610 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
611 ic->ic_opmode = opmode;
612 return vap;
613}
614
615static void
616rum_vap_delete(struct ieee80211vap *vap)
617{
618 struct rum_vap *rvp = RUM_VAP(vap);
619 struct ieee80211com *ic = vap->iv_ic;
620
621 usb_callout_drain(&rvp->ratectl_ch);
622 ieee80211_draintask(ic, &rvp->ratectl_task);
623 ieee80211_ratectl_deinit(vap);
624 ieee80211_vap_detach(vap);
625 free(rvp, M_80211_VAP);
626}
627
628static void
629rum_tx_free(struct rum_tx_data *data, int txerr)
630{
631 struct rum_softc *sc = data->sc;
632
633 if (data->m != NULL) {
634 if (data->m->m_flags & M_TXCB)
635 ieee80211_process_callback(data->ni, data->m,
636 txerr ? ETIMEDOUT : 0);
637 m_freem(data->m);
638 data->m = NULL;
639
640 ieee80211_free_node(data->ni);
641 data->ni = NULL;
642 }
643 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
644 sc->tx_nfree++;
645}
646
647static void
648rum_setup_tx_list(struct rum_softc *sc)
649{
650 struct rum_tx_data *data;
651 int i;
652
653 sc->tx_nfree = 0;
654 STAILQ_INIT(&sc->tx_q);
655 STAILQ_INIT(&sc->tx_free);
656
657 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
658 data = &sc->tx_data[i];
659
660 data->sc = sc;
661 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
662 sc->tx_nfree++;
663 }
664}
665
666static void
667rum_unsetup_tx_list(struct rum_softc *sc)
668{
669 struct rum_tx_data *data;
670 int i;
671
672 /* make sure any subsequent use of the queues will fail */
673 sc->tx_nfree = 0;
674 STAILQ_INIT(&sc->tx_q);
675 STAILQ_INIT(&sc->tx_free);
676
677 /* free up all node references and mbufs */
678 for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
679 data = &sc->tx_data[i];
680
681 if (data->m != NULL) {
682 m_freem(data->m);
683 data->m = NULL;
684 }
685 if (data->ni != NULL) {
686 ieee80211_free_node(data->ni);
687 data->ni = NULL;
688 }
689 }
690}
691
692static int
693rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
694{
695 struct rum_vap *rvp = RUM_VAP(vap);
696 struct ieee80211com *ic = vap->iv_ic;
697 struct rum_softc *sc = ic->ic_ifp->if_softc;
698 const struct ieee80211_txparam *tp;
699 enum ieee80211_state ostate;
700 struct ieee80211_node *ni;
701 uint32_t tmp;
702
703 ostate = vap->iv_state;
704 DPRINTF("%s -> %s\n",
705 ieee80211_state_name[ostate],
706 ieee80211_state_name[nstate]);
707
708 IEEE80211_UNLOCK(ic);
709 RUM_LOCK(sc);
710 usb_callout_stop(&rvp->ratectl_ch);
711
712 switch (nstate) {
713 case IEEE80211_S_INIT:
714 if (ostate == IEEE80211_S_RUN) {
715 /* abort TSF synchronization */
716 tmp = rum_read(sc, RT2573_TXRX_CSR9);
717 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
718 }
719 break;
720
721 case IEEE80211_S_RUN:
722 ni = vap->iv_bss;
723
724 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
725 rum_update_slot(ic->ic_ifp);
726 rum_enable_mrr(sc);
727 rum_set_txpreamble(sc);
728 rum_set_basicrates(sc);
729 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
730 rum_set_bssid(sc, sc->sc_bssid);
731 }
732
733 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
734 vap->iv_opmode == IEEE80211_M_IBSS)
735 rum_prepare_beacon(sc, vap);
736
737 if (vap->iv_opmode != IEEE80211_M_MONITOR)
738 rum_enable_tsf_sync(sc);
739 else
740 rum_enable_tsf(sc);
741
742 /* enable automatic rate adaptation */
743 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
744 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
745 rum_ratectl_start(sc, ni);
746 break;
747 default:
748 break;
749 }
750 RUM_UNLOCK(sc);
751 IEEE80211_LOCK(ic);
752 return (rvp->newstate(vap, nstate, arg));
753}
754
755static void
756rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
757{
758 struct rum_softc *sc = usbd_xfer_softc(xfer);
759 struct ifnet *ifp = sc->sc_ifp;
760 struct ieee80211vap *vap;
761 struct rum_tx_data *data;
762 struct mbuf *m;
763 struct usb_page_cache *pc;
764 unsigned int len;
765 int actlen, sumlen;
766
767 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
768
769 switch (USB_GET_STATE(xfer)) {
770 case USB_ST_TRANSFERRED:
771 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
772
773 /* free resources */
774 data = usbd_xfer_get_priv(xfer);
775 rum_tx_free(data, 0);
776 usbd_xfer_set_priv(xfer, NULL);
777
778 ifp->if_opackets++;
779 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
780
781 /* FALLTHROUGH */
782 case USB_ST_SETUP:
783tr_setup:
784 data = STAILQ_FIRST(&sc->tx_q);
785 if (data) {
786 STAILQ_REMOVE_HEAD(&sc->tx_q, next);
787 m = data->m;
788
789 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) {
790 DPRINTFN(0, "data overflow, %u bytes\n",
791 m->m_pkthdr.len);
792 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
793 }
794 pc = usbd_xfer_get_frame(xfer, 0);
795 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
796 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
797 m->m_pkthdr.len);
798
799 vap = data->ni->ni_vap;
800 if (ieee80211_radiotap_active_vap(vap)) {
801 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
802
803 tap->wt_flags = 0;
804 tap->wt_rate = data->rate;
805 tap->wt_antenna = sc->tx_ant;
806
807 ieee80211_radiotap_tx(vap, m);
808 }
809
810 /* align end on a 4-bytes boundary */
811 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
812 if ((len % 64) == 0)
813 len += 4;
814
815 DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
816 m->m_pkthdr.len, len);
817
818 usbd_xfer_set_frame_len(xfer, 0, len);
819 usbd_xfer_set_priv(xfer, data);
820
821 usbd_transfer_submit(xfer);
822 }
823 RUM_UNLOCK(sc);
824 rum_start(ifp);
825 RUM_LOCK(sc);
826 break;
827
828 default: /* Error */
829 DPRINTFN(11, "transfer error, %s\n",
830 usbd_errstr(error));
831
832 ifp->if_oerrors++;
833 data = usbd_xfer_get_priv(xfer);
834 if (data != NULL) {
835 rum_tx_free(data, error);
836 usbd_xfer_set_priv(xfer, NULL);
837 }
838
839 if (error != USB_ERR_CANCELLED) {
840 if (error == USB_ERR_TIMEOUT)
841 device_printf(sc->sc_dev, "device timeout\n");
842
843 /*
844 * Try to clear stall first, also if other
845 * errors occur, hence clearing stall
846 * introduces a 50 ms delay:
847 */
848 usbd_xfer_set_stall(xfer);
849 goto tr_setup;
850 }
851 break;
852 }
853}
854
855static void
856rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
857{
858 struct rum_softc *sc = usbd_xfer_softc(xfer);
859 struct ifnet *ifp = sc->sc_ifp;
860 struct ieee80211com *ic = ifp->if_l2com;
861 struct ieee80211_node *ni;
862 struct mbuf *m = NULL;
863 struct usb_page_cache *pc;
864 uint32_t flags;
865 uint8_t rssi = 0;
866 int len;
867
868 usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
869
870 switch (USB_GET_STATE(xfer)) {
871 case USB_ST_TRANSFERRED:
872
873 DPRINTFN(15, "rx done, actlen=%d\n", len);
874
875 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) {
876 DPRINTF("%s: xfer too short %d\n",
877 device_get_nameunit(sc->sc_dev), len);
878 ifp->if_ierrors++;
879 goto tr_setup;
880 }
881
882 len -= RT2573_RX_DESC_SIZE;
883 pc = usbd_xfer_get_frame(xfer, 0);
884 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
885
886 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
887 flags = le32toh(sc->sc_rx_desc.flags);
888 if (flags & RT2573_RX_CRC_ERROR) {
889 /*
890 * This should not happen since we did not
891 * request to receive those frames when we
892 * filled RUM_TXRX_CSR2:
893 */
894 DPRINTFN(5, "PHY or CRC error\n");
895 ifp->if_ierrors++;
896 goto tr_setup;
897 }
898
899 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
900 if (m == NULL) {
901 DPRINTF("could not allocate mbuf\n");
902 ifp->if_ierrors++;
903 goto tr_setup;
904 }
905 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
906 mtod(m, uint8_t *), len);
907
908 /* finalize mbuf */
909 m->m_pkthdr.rcvif = ifp;
910 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff;
911
912 if (ieee80211_radiotap_active(ic)) {
913 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
914
915 /* XXX read tsf */
916 tap->wr_flags = 0;
917 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
918 (flags & RT2573_RX_OFDM) ?
919 IEEE80211_T_OFDM : IEEE80211_T_CCK);
920 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
921 tap->wr_antnoise = RT2573_NOISE_FLOOR;
922 tap->wr_antenna = sc->rx_ant;
923 }
924 /* FALLTHROUGH */
925 case USB_ST_SETUP:
926tr_setup:
927 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
928 usbd_transfer_submit(xfer);
929
930 /*
931 * At the end of a USB callback it is always safe to unlock
932 * the private mutex of a device! That is why we do the
933 * "ieee80211_input" here, and not some lines up!
934 */
935 RUM_UNLOCK(sc);
936 if (m) {
937 ni = ieee80211_find_rxnode(ic,
938 mtod(m, struct ieee80211_frame_min *));
939 if (ni != NULL) {
940 (void) ieee80211_input(ni, m, rssi,
941 RT2573_NOISE_FLOOR);
942 ieee80211_free_node(ni);
943 } else
944 (void) ieee80211_input_all(ic, m, rssi,
945 RT2573_NOISE_FLOOR);
946 }
947 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
948 !IFQ_IS_EMPTY(&ifp->if_snd))
949 rum_start(ifp);
950 RUM_LOCK(sc);
951 return;
952
953 default: /* Error */
954 if (error != USB_ERR_CANCELLED) {
955 /* try to clear stall first */
956 usbd_xfer_set_stall(xfer);
957 goto tr_setup;
958 }
959 return;
960 }
961}
962
963static uint8_t
964rum_plcp_signal(int rate)
965{
966 switch (rate) {
967 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
968 case 12: return 0xb;
969 case 18: return 0xf;
970 case 24: return 0xa;
971 case 36: return 0xe;
972 case 48: return 0x9;
973 case 72: return 0xd;
974 case 96: return 0x8;
975 case 108: return 0xc;
976
977 /* CCK rates (NB: not IEEE std, device-specific) */
978 case 2: return 0x0;
979 case 4: return 0x1;
980 case 11: return 0x2;
981 case 22: return 0x3;
982 }
983 return 0xff; /* XXX unsupported/unknown rate */
984}
985
986static void
987rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
988 uint32_t flags, uint16_t xflags, int len, int rate)
989{
990 struct ifnet *ifp = sc->sc_ifp;
991 struct ieee80211com *ic = ifp->if_l2com;
992 uint16_t plcp_length;
993 int remainder;
994
995 desc->flags = htole32(flags);
996 desc->flags |= htole32(RT2573_TX_VALID);
997 desc->flags |= htole32(len << 16);
998
999 desc->xflags = htole16(xflags);
1000
1001 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) |
1002 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10));
1003
1004 /* setup PLCP fields */
1005 desc->plcp_signal = rum_plcp_signal(rate);
1006 desc->plcp_service = 4;
1007
1008 len += IEEE80211_CRC_LEN;
1009 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1010 desc->flags |= htole32(RT2573_TX_OFDM);
1011
1012 plcp_length = len & 0xfff;
1013 desc->plcp_length_hi = plcp_length >> 6;
1014 desc->plcp_length_lo = plcp_length & 0x3f;
1015 } else {
1016 plcp_length = (16 * len + rate - 1) / rate;
1017 if (rate == 22) {
1018 remainder = (16 * len) % 22;
1019 if (remainder != 0 && remainder < 7)
1020 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1021 }
1022 desc->plcp_length_hi = plcp_length >> 8;
1023 desc->plcp_length_lo = plcp_length & 0xff;
1024
1025 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1026 desc->plcp_signal |= 0x08;
1027 }
1028}
1029
1030static int
1031rum_sendprot(struct rum_softc *sc,
1032 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1033{
1034 struct ieee80211com *ic = ni->ni_ic;
1035 const struct ieee80211_frame *wh;
1036 struct rum_tx_data *data;
1037 struct mbuf *mprot;
1038 int protrate, ackrate, pktlen, flags, isshort;
1039 uint16_t dur;
1040
1041 RUM_LOCK_ASSERT(sc, MA_OWNED);
1042 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1043 ("protection %d", prot));
1044
1045 wh = mtod(m, const struct ieee80211_frame *);
1046 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1047
1048 protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1049 ackrate = ieee80211_ack_rate(ic->ic_rt, rate);
1050
1051 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1052 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1053 + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1054 flags = RT2573_TX_MORE_FRAG;
1055 if (prot == IEEE80211_PROT_RTSCTS) {
1056 /* NB: CTS is the same size as an ACK */
1057 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1058 flags |= RT2573_TX_NEED_ACK;
1059 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1060 } else {
1061 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1062 }
1063 if (mprot == NULL) {
1064 /* XXX stat + msg */
1065 return (ENOBUFS);
1066 }
1067 data = STAILQ_FIRST(&sc->tx_free);
1068 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1069 sc->tx_nfree--;
1070
1071 data->m = mprot;
1072 data->ni = ieee80211_ref_node(ni);
1073 data->rate = protrate;
1074 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate);
1075
1076 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1077 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1078
1079 return 0;
1080}
1081
1082static int
1083rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1084{
1085 struct ieee80211vap *vap = ni->ni_vap;
1086 struct ifnet *ifp = sc->sc_ifp;
1087 struct ieee80211com *ic = ifp->if_l2com;
1088 struct rum_tx_data *data;
1089 struct ieee80211_frame *wh;
1090 const struct ieee80211_txparam *tp;
1091 struct ieee80211_key *k;
1092 uint32_t flags = 0;
1093 uint16_t dur;
1094
1095 RUM_LOCK_ASSERT(sc, MA_OWNED);
1096
1097 data = STAILQ_FIRST(&sc->tx_free);
1098 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1099 sc->tx_nfree--;
1100
1101 wh = mtod(m0, struct ieee80211_frame *);
1102 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1103 k = ieee80211_crypto_encap(ni, m0);
1104 if (k == NULL) {
1105 m_freem(m0);
1106 return ENOBUFS;
1107 }
1108 wh = mtod(m0, struct ieee80211_frame *);
1109 }
1110
1111 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1112
1113 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1114 flags |= RT2573_TX_NEED_ACK;
1115
1116 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1117 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1118 *(uint16_t *)wh->i_dur = htole16(dur);
1119
1120 /* tell hardware to add timestamp for probe responses */
1121 if ((wh->i_fc[0] &
1122 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
1123 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP))
1124 flags |= RT2573_TX_TIMESTAMP;
1125 }
1126
1127 data->m = m0;
1128 data->ni = ni;
1129 data->rate = tp->mgmtrate;
1130
1131 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate);
1132
1133 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1134 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1135
1136 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1137 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1138
1139 return (0);
1140}
1141
1142static int
1143rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1144 const struct ieee80211_bpf_params *params)
1145{
1146 struct ieee80211com *ic = ni->ni_ic;
1147 struct rum_tx_data *data;
1148 uint32_t flags;
1149 int rate, error;
1150
1151 RUM_LOCK_ASSERT(sc, MA_OWNED);
1152 KASSERT(params != NULL, ("no raw xmit params"));
1153
1154 rate = params->ibp_rate0;
1155 if (!ieee80211_isratevalid(ic->ic_rt, rate)) {
1156 m_freem(m0);
1157 return EINVAL;
1158 }
1159 flags = 0;
1160 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1161 flags |= RT2573_TX_NEED_ACK;
1162 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1163 error = rum_sendprot(sc, m0, ni,
1164 params->ibp_flags & IEEE80211_BPF_RTS ?
1165 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1166 rate);
1167 if (error || sc->tx_nfree == 0) {
1168 m_freem(m0);
1169 return ENOBUFS;
1170 }
1171 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1172 }
1173
1174 data = STAILQ_FIRST(&sc->tx_free);
1175 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1176 sc->tx_nfree--;
1177
1178 data->m = m0;
1179 data->ni = ni;
1180 data->rate = rate;
1181
1182 /* XXX need to setup descriptor ourself */
1183 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1184
1185 DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1186 m0->m_pkthdr.len, rate);
1187
1188 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1189 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1190
1191 return 0;
1192}
1193
1194static int
1195rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1196{
1197 struct ieee80211vap *vap = ni->ni_vap;
1198 struct ifnet *ifp = sc->sc_ifp;
1199 struct ieee80211com *ic = ifp->if_l2com;
1200 struct rum_tx_data *data;
1201 struct ieee80211_frame *wh;
1202 const struct ieee80211_txparam *tp;
1203 struct ieee80211_key *k;
1204 uint32_t flags = 0;
1205 uint16_t dur;
1206 int error, rate;
1207
1208 RUM_LOCK_ASSERT(sc, MA_OWNED);
1209
1210 wh = mtod(m0, struct ieee80211_frame *);
1211
1212 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)];
1213 if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1214 rate = tp->mcastrate;
1215 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1216 rate = tp->ucastrate;
1217 else
1218 rate = ni->ni_txrate;
1219
1220 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1221 k = ieee80211_crypto_encap(ni, m0);
1222 if (k == NULL) {
1223 m_freem(m0);
1224 return ENOBUFS;
1225 }
1226
1227 /* packet header may have moved, reset our local pointer */
1228 wh = mtod(m0, struct ieee80211_frame *);
1229 }
1230
1231 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1232 int prot = IEEE80211_PROT_NONE;
1233 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1234 prot = IEEE80211_PROT_RTSCTS;
1235 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1236 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1237 prot = ic->ic_protmode;
1238 if (prot != IEEE80211_PROT_NONE) {
1239 error = rum_sendprot(sc, m0, ni, prot, rate);
1240 if (error || sc->tx_nfree == 0) {
1241 m_freem(m0);
1242 return ENOBUFS;
1243 }
1244 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1245 }
1246 }
1247
1248 data = STAILQ_FIRST(&sc->tx_free);
1249 STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1250 sc->tx_nfree--;
1251
1252 data->m = m0;
1253 data->ni = ni;
1254 data->rate = rate;
1255
1256 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1257 flags |= RT2573_TX_NEED_ACK;
1258 flags |= RT2573_TX_MORE_FRAG;
1259
1260 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1261 ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1262 *(uint16_t *)wh->i_dur = htole16(dur);
1263 }
1264
1265 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate);
1266
1267 DPRINTFN(10, "sending frame len=%d rate=%d\n",
1268 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1269
1270 STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1271 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1272
1273 return 0;
1274}
1275
1276static void
1277rum_start(struct ifnet *ifp)
1278{
1279 struct rum_softc *sc = ifp->if_softc;
1280 struct ieee80211_node *ni;
1281 struct mbuf *m;
1282
1283 RUM_LOCK(sc);
1284 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1285 RUM_UNLOCK(sc);
1286 return;
1287 }
1288 for (;;) {
1289 IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
1290 if (m == NULL)
1291 break;
1292 if (sc->tx_nfree < RUM_TX_MINFREE) {
1293 IFQ_DRV_PREPEND(&ifp->if_snd, m);
1294 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1295 break;
1296 }
1297 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1298 if (rum_tx_data(sc, m, ni) != 0) {
1299 ieee80211_free_node(ni);
1300 ifp->if_oerrors++;
1301 break;
1302 }
1303 }
1304 RUM_UNLOCK(sc);
1305}
1306
1307static int
1308rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1309{
1310 struct rum_softc *sc = ifp->if_softc;
1311 struct ieee80211com *ic = ifp->if_l2com;
1312 struct ifreq *ifr = (struct ifreq *) data;
1313 int error = 0, startall = 0;
1314
1315 switch (cmd) {
1316 case SIOCSIFFLAGS:
1317 RUM_LOCK(sc);
1318 if (ifp->if_flags & IFF_UP) {
1319 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1320 rum_init_locked(sc);
1321 startall = 1;
1322 } else
1323 rum_setpromisc(sc);
1324 } else {
1325 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1326 rum_stop(sc);
1327 }
1328 RUM_UNLOCK(sc);
1329 if (startall)
1330 ieee80211_start_all(ic);
1331 break;
1332 case SIOCGIFMEDIA:
1333 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1334 break;
1335 case SIOCGIFADDR:
1336 error = ether_ioctl(ifp, cmd, data);
1337 break;
1338 default:
1339 error = EINVAL;
1340 break;
1341 }
1342 return error;
1343}
1344
1345static void
1346rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1347{
1348 struct usb_device_request req;
1349 usb_error_t error;
1350
1351 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1352 req.bRequest = RT2573_READ_EEPROM;
1353 USETW(req.wValue, 0);
1354 USETW(req.wIndex, addr);
1355 USETW(req.wLength, len);
1356
1357 error = rum_do_request(sc, &req, buf);
1358 if (error != 0) {
1359 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1360 usbd_errstr(error));
1361 }
1362}
1363
1364static uint32_t
1365rum_read(struct rum_softc *sc, uint16_t reg)
1366{
1367 uint32_t val;
1368
1369 rum_read_multi(sc, reg, &val, sizeof val);
1370
1371 return le32toh(val);
1372}
1373
1374static void
1375rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1376{
1377 struct usb_device_request req;
1378 usb_error_t error;
1379
1380 req.bmRequestType = UT_READ_VENDOR_DEVICE;
1381 req.bRequest = RT2573_READ_MULTI_MAC;
1382 USETW(req.wValue, 0);
1383 USETW(req.wIndex, reg);
1384 USETW(req.wLength, len);
1385
1386 error = rum_do_request(sc, &req, buf);
1387 if (error != 0) {
1388 device_printf(sc->sc_dev,
1389 "could not multi read MAC register: %s\n",
1390 usbd_errstr(error));
1391 }
1392}
1393
1394static usb_error_t
1395rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1396{
1397 uint32_t tmp = htole32(val);
1398
1399 return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1400}
1401
1402static usb_error_t
1403rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1404{
1405 struct usb_device_request req;
1406 usb_error_t error;
1407
1408 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1409 req.bRequest = RT2573_WRITE_MULTI_MAC;
1410 USETW(req.wValue, 0);
1411 USETW(req.wIndex, reg);
1412 USETW(req.wLength, len);
1413
1414 error = rum_do_request(sc, &req, buf);
1415 if (error != 0) {
1416 device_printf(sc->sc_dev,
1417 "could not multi write MAC register: %s\n",
1418 usbd_errstr(error));
1419 }
1420 return (error);
1421}
1422
1423static void
1424rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1425{
1426 uint32_t tmp;
1427 int ntries;
1428
1429 DPRINTFN(2, "reg=0x%08x\n", reg);
1430
1431 for (ntries = 0; ntries < 100; ntries++) {
1432 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1433 break;
1434 if (rum_pause(sc, hz / 100))
1435 break;
1436 }
1437 if (ntries == 100) {
1438 device_printf(sc->sc_dev, "could not write to BBP\n");
1439 return;
1440 }
1441
1442 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1443 rum_write(sc, RT2573_PHY_CSR3, tmp);
1444}
1445
1446static uint8_t
1447rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1448{
1449 uint32_t val;
1450 int ntries;
1451
1452 DPRINTFN(2, "reg=0x%08x\n", reg);
1453
1454 for (ntries = 0; ntries < 100; ntries++) {
1455 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1456 break;
1457 if (rum_pause(sc, hz / 100))
1458 break;
1459 }
1460 if (ntries == 100) {
1461 device_printf(sc->sc_dev, "could not read BBP\n");
1462 return 0;
1463 }
1464
1465 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1466 rum_write(sc, RT2573_PHY_CSR3, val);
1467
1468 for (ntries = 0; ntries < 100; ntries++) {
1469 val = rum_read(sc, RT2573_PHY_CSR3);
1470 if (!(val & RT2573_BBP_BUSY))
1471 return val & 0xff;
1472 if (rum_pause(sc, hz / 100))
1473 break;
1474 }
1475
1476 device_printf(sc->sc_dev, "could not read BBP\n");
1477 return 0;
1478}
1479
1480static void
1481rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1482{
1483 uint32_t tmp;
1484 int ntries;
1485
1486 for (ntries = 0; ntries < 100; ntries++) {
1487 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1488 break;
1489 if (rum_pause(sc, hz / 100))
1490 break;
1491 }
1492 if (ntries == 100) {
1493 device_printf(sc->sc_dev, "could not write to RF\n");
1494 return;
1495 }
1496
1497 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1498 (reg & 3);
1499 rum_write(sc, RT2573_PHY_CSR4, tmp);
1500
1501 /* remember last written value in sc */
1502 sc->rf_regs[reg] = val;
1503
1504 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1505}
1506
1507static void
1508rum_select_antenna(struct rum_softc *sc)
1509{
1510 uint8_t bbp4, bbp77;
1511 uint32_t tmp;
1512
1513 bbp4 = rum_bbp_read(sc, 4);
1514 bbp77 = rum_bbp_read(sc, 77);
1515
1516 /* TBD */
1517
1518 /* make sure Rx is disabled before switching antenna */
1519 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1520 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
1521
1522 rum_bbp_write(sc, 4, bbp4);
1523 rum_bbp_write(sc, 77, bbp77);
1524
1525 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1526}
1527
1528/*
1529 * Enable multi-rate retries for frames sent at OFDM rates.
1530 * In 802.11b/g mode, allow fallback to CCK rates.
1531 */
1532static void
1533rum_enable_mrr(struct rum_softc *sc)
1534{
1535 struct ifnet *ifp = sc->sc_ifp;
1536 struct ieee80211com *ic = ifp->if_l2com;
1537 uint32_t tmp;
1538
1539 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1540
1541 tmp &= ~RT2573_MRR_CCK_FALLBACK;
1542 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan))
1543 tmp |= RT2573_MRR_CCK_FALLBACK;
1544 tmp |= RT2573_MRR_ENABLED;
1545
1546 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1547}
1548
1549static void
1550rum_set_txpreamble(struct rum_softc *sc)
1551{
1552 struct ifnet *ifp = sc->sc_ifp;
1553 struct ieee80211com *ic = ifp->if_l2com;
1554 uint32_t tmp;
1555
1556 tmp = rum_read(sc, RT2573_TXRX_CSR4);
1557
1558 tmp &= ~RT2573_SHORT_PREAMBLE;
1559 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1560 tmp |= RT2573_SHORT_PREAMBLE;
1561
1562 rum_write(sc, RT2573_TXRX_CSR4, tmp);
1563}
1564
1565static void
1566rum_set_basicrates(struct rum_softc *sc)
1567{
1568 struct ifnet *ifp = sc->sc_ifp;
1569 struct ieee80211com *ic = ifp->if_l2com;
1570
1571 /* update basic rate set */
1572 if (ic->ic_curmode == IEEE80211_MODE_11B) {
1573 /* 11b basic rates: 1, 2Mbps */
1574 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
1575 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
1576 /* 11a basic rates: 6, 12, 24Mbps */
1577 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
1578 } else {
1579 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
1580 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
1581 }
1582}
1583
1584/*
1585 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference
1586 * driver.
1587 */
1588static void
1589rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
1590{
1591 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
1592 uint32_t tmp;
1593
1594 /* update all BBP registers that depend on the band */
1595 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
1596 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48;
1597 if (IEEE80211_IS_CHAN_5GHZ(c)) {
1598 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
1599 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10;
1600 }
1601 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1602 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1603 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
1604 }
1605
1606 sc->bbp17 = bbp17;
1607 rum_bbp_write(sc, 17, bbp17);
1608 rum_bbp_write(sc, 96, bbp96);
1609 rum_bbp_write(sc, 104, bbp104);
1610
1611 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
1612 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
1613 rum_bbp_write(sc, 75, 0x80);
1614 rum_bbp_write(sc, 86, 0x80);
1615 rum_bbp_write(sc, 88, 0x80);
1616 }
1617
1618 rum_bbp_write(sc, 35, bbp35);
1619 rum_bbp_write(sc, 97, bbp97);
1620 rum_bbp_write(sc, 98, bbp98);
1621
1622 tmp = rum_read(sc, RT2573_PHY_CSR0);
1623 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ);
1624 if (IEEE80211_IS_CHAN_2GHZ(c))
1625 tmp |= RT2573_PA_PE_2GHZ;
1626 else
1627 tmp |= RT2573_PA_PE_5GHZ;
1628 rum_write(sc, RT2573_PHY_CSR0, tmp);
1629}
1630
1631static void
1632rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
1633{
1634 struct ifnet *ifp = sc->sc_ifp;
1635 struct ieee80211com *ic = ifp->if_l2com;
1636 const struct rfprog *rfprog;
1637 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
1638 int8_t power;
1639 int i, chan;
1640
1641 chan = ieee80211_chan2ieee(ic, c);
1642 if (chan == 0 || chan == IEEE80211_CHAN_ANY)
1643 return;
1644
1645 /* select the appropriate RF settings based on what EEPROM says */
1646 rfprog = (sc->rf_rev == RT2573_RF_5225 ||
1647 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
1648
1649 /* find the settings for this channel (we know it exists) */
1650 for (i = 0; rfprog[i].chan != chan; i++);
1651
1652 power = sc->txpow[i];
1653 if (power < 0) {
1654 bbp94 += power;
1655 power = 0;
1656 } else if (power > 31) {
1657 bbp94 += power - 31;
1658 power = 31;
1659 }
1660
1661 /*
1662 * If we are switching from the 2GHz band to the 5GHz band or
1663 * vice-versa, BBP registers need to be reprogrammed.
1664 */
1665 if (c->ic_flags != ic->ic_curchan->ic_flags) {
1666 rum_select_band(sc, c);
1667 rum_select_antenna(sc);
1668 }
1669 ic->ic_curchan = c;
1670
1671 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1672 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1673 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1674 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1675
1676 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1677 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1678 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
1679 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1680
1681 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
1682 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
1683 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
1684 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
1685
1686 rum_pause(sc, hz / 100);
1687
1688 /* enable smart mode for MIMO-capable RFs */
1689 bbp3 = rum_bbp_read(sc, 3);
1690
1691 bbp3 &= ~RT2573_SMART_MODE;
1692 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
1693 bbp3 |= RT2573_SMART_MODE;
1694
1695 rum_bbp_write(sc, 3, bbp3);
1696
1697 if (bbp94 != RT2573_BBPR94_DEFAULT)
1698 rum_bbp_write(sc, 94, bbp94);
1699
1700 /* give the chip some extra time to do the switchover */
1701 rum_pause(sc, hz / 100);
1702}
1703
1704/*
1705 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
1706 * and HostAP operating modes.
1707 */
1708static void
1709rum_enable_tsf_sync(struct rum_softc *sc)
1710{
1711 struct ifnet *ifp = sc->sc_ifp;
1712 struct ieee80211com *ic = ifp->if_l2com;
1713 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1714 uint32_t tmp;
1715
1716 if (vap->iv_opmode != IEEE80211_M_STA) {
1717 /*
1718 * Change default 16ms TBTT adjustment to 8ms.
1719 * Must be done before enabling beacon generation.
1720 */
1721 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8);
1722 }
1723
1724 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
1725
1726 /* set beacon interval (in 1/16ms unit) */
1727 tmp |= vap->iv_bss->ni_intval * 16;
1728
1729 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT;
1730 if (vap->iv_opmode == IEEE80211_M_STA)
1731 tmp |= RT2573_TSF_MODE(1);
1732 else
1733 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON;
1734
1735 rum_write(sc, RT2573_TXRX_CSR9, tmp);
1736}
1737
1738static void
1739rum_enable_tsf(struct rum_softc *sc)
1740{
1741 rum_write(sc, RT2573_TXRX_CSR9,
1742 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) |
1743 RT2573_TSF_TICKING | RT2573_TSF_MODE(2));
1744}
1745
1746static void
1747rum_update_slot(struct ifnet *ifp)
1748{
1749 struct rum_softc *sc = ifp->if_softc;
1750 struct ieee80211com *ic = ifp->if_l2com;
1751 uint8_t slottime;
1752 uint32_t tmp;
1753
1754 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20;
1755
1756 tmp = rum_read(sc, RT2573_MAC_CSR9);
1757 tmp = (tmp & ~0xff) | slottime;
1758 rum_write(sc, RT2573_MAC_CSR9, tmp);
1759
1760 DPRINTF("setting slot time to %uus\n", slottime);
1761}
1762
1763static void
1764rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
1765{
1766 uint32_t tmp;
1767
1768 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24;
1769 rum_write(sc, RT2573_MAC_CSR4, tmp);
1770
1771 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16;
1772 rum_write(sc, RT2573_MAC_CSR5, tmp);
1773}
1774
1775static void
1776rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
1777{
1778 uint32_t tmp;
1779
1780 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24;
1781 rum_write(sc, RT2573_MAC_CSR2, tmp);
1782
1783 tmp = addr[4] | addr[5] << 8 | 0xff << 16;
1784 rum_write(sc, RT2573_MAC_CSR3, tmp);
1785}
1786
1787static void
1788rum_setpromisc(struct rum_softc *sc)
1789{
1790 struct ifnet *ifp = sc->sc_ifp;
1791 uint32_t tmp;
1792
1793 tmp = rum_read(sc, RT2573_TXRX_CSR0);
1794
1795 tmp &= ~RT2573_DROP_NOT_TO_ME;
1796 if (!(ifp->if_flags & IFF_PROMISC))
1797 tmp |= RT2573_DROP_NOT_TO_ME;
1798
1799 rum_write(sc, RT2573_TXRX_CSR0, tmp);
1800
1801 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ?
1802 "entering" : "leaving");
1803}
1804
1805static void
1806rum_update_promisc(struct ifnet *ifp)
1807{
1808 struct rum_softc *sc = ifp->if_softc;
1809
1810 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1811 return;
1812
1813 RUM_LOCK(sc);
1814 rum_setpromisc(sc);
1815 RUM_UNLOCK(sc);
1816}
1817
1818static void
1819rum_update_mcast(struct ifnet *ifp)
1820{
1821
1822 /* XXX do nothing? */
1823}
1824
1825static const char *
1826rum_get_rf(int rev)
1827{
1828 switch (rev) {
1829 case RT2573_RF_2527: return "RT2527 (MIMO XR)";
1830 case RT2573_RF_2528: return "RT2528";
1831 case RT2573_RF_5225: return "RT5225 (MIMO XR)";
1832 case RT2573_RF_5226: return "RT5226";
1833 default: return "unknown";
1834 }
1835}
1836
1837static void
1838rum_read_eeprom(struct rum_softc *sc)
1839{
1840 uint16_t val;
1841#ifdef RUM_DEBUG
1842 int i;
1843#endif
1844
1845 /* read MAC address */
1846 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6);
1847
1848 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
1849 val = le16toh(val);
1850 sc->rf_rev = (val >> 11) & 0x1f;
1851 sc->hw_radio = (val >> 10) & 0x1;
1852 sc->rx_ant = (val >> 4) & 0x3;
1853 sc->tx_ant = (val >> 2) & 0x3;
1854 sc->nb_ant = val & 0x3;
1855
1856 DPRINTF("RF revision=%d\n", sc->rf_rev);
1857
1858 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
1859 val = le16toh(val);
1860 sc->ext_5ghz_lna = (val >> 6) & 0x1;
1861 sc->ext_2ghz_lna = (val >> 4) & 0x1;
1862
1863 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
1864 sc->ext_2ghz_lna, sc->ext_5ghz_lna);
1865
1866 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
1867 val = le16toh(val);
1868 if ((val & 0xff) != 0xff)
1869 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */
1870
1871 /* Only [-10, 10] is valid */
1872 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
1873 sc->rssi_2ghz_corr = 0;
1874
1875 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
1876 val = le16toh(val);
1877 if ((val & 0xff) != 0xff)
1878 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */
1879
1880 /* Only [-10, 10] is valid */
1881 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
1882 sc->rssi_5ghz_corr = 0;
1883
1884 if (sc->ext_2ghz_lna)
1885 sc->rssi_2ghz_corr -= 14;
1886 if (sc->ext_5ghz_lna)
1887 sc->rssi_5ghz_corr -= 14;
1888
1889 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
1890 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
1891
1892 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
1893 val = le16toh(val);
1894 if ((val & 0xff) != 0xff)
1895 sc->rffreq = val & 0xff;
1896
1897 DPRINTF("RF freq=%d\n", sc->rffreq);
1898
1899 /* read Tx power for all a/b/g channels */
1900 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
1901 /* XXX default Tx power for 802.11a channels */
1902 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
1903#ifdef RUM_DEBUG
1904 for (i = 0; i < 14; i++)
1905 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]);
1906#endif
1907
1908 /* read default values for BBP registers */
1909 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
1910#ifdef RUM_DEBUG
1911 for (i = 0; i < 14; i++) {
1912 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1913 continue;
1914 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
1915 sc->bbp_prom[i].val);
1916 }
1917#endif
1918}
1919
1920static int
1921rum_bbp_init(struct rum_softc *sc)
1922{
1923#define N(a) (sizeof (a) / sizeof ((a)[0]))
1924 int i, ntries;
1925
1926 /* wait for BBP to be ready */
1927 for (ntries = 0; ntries < 100; ntries++) {
1928 const uint8_t val = rum_bbp_read(sc, 0);
1929 if (val != 0 && val != 0xff)
1930 break;
1931 if (rum_pause(sc, hz / 100))
1932 break;
1933 }
1934 if (ntries == 100) {
1935 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
1936 return EIO;
1937 }
1938
1939 /* initialize BBP registers to default values */
1940 for (i = 0; i < N(rum_def_bbp); i++)
1941 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
1942
1943 /* write vendor-specific BBP values (from EEPROM) */
1944 for (i = 0; i < 16; i++) {
1945 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
1946 continue;
1947 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
1948 }
1949
1950 return 0;
1951#undef N
1952}
1953
1954static void
1955rum_init_locked(struct rum_softc *sc)
1956{
1957#define N(a) (sizeof (a) / sizeof ((a)[0]))
1958 struct ifnet *ifp = sc->sc_ifp;
1959 struct ieee80211com *ic = ifp->if_l2com;
1960 uint32_t tmp;
1961 usb_error_t error;
1962 int i, ntries;
1963
1964 RUM_LOCK_ASSERT(sc, MA_OWNED);
1965
1966 rum_stop(sc);
1967
1968 /* initialize MAC registers to default values */
1969 for (i = 0; i < N(rum_def_mac); i++)
1970 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
1971
1972 /* set host ready */
1973 rum_write(sc, RT2573_MAC_CSR1, 3);
1974 rum_write(sc, RT2573_MAC_CSR1, 0);
1975
1976 /* wait for BBP/RF to wakeup */
1977 for (ntries = 0; ntries < 100; ntries++) {
1978 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
1979 break;
1980 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */
1981 if (rum_pause(sc, hz / 100))
1982 break;
1983 }
1984 if (ntries == 100) {
1985 device_printf(sc->sc_dev,
1986 "timeout waiting for BBP/RF to wakeup\n");
1987 goto fail;
1988 }
1989
1990 if ((error = rum_bbp_init(sc)) != 0)
1991 goto fail;
1992
1993 /* select default channel */
1994 rum_select_band(sc, ic->ic_curchan);
1995 rum_select_antenna(sc);
1996 rum_set_chan(sc, ic->ic_curchan);
1997
1998 /* clear STA registers */
1999 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2000
2001 rum_set_macaddr(sc, IF_LLADDR(ifp));
2002
2003 /* initialize ASIC */
2004 rum_write(sc, RT2573_MAC_CSR1, 4);
2005
2006 /*
2007 * Allocate Tx and Rx xfer queues.
2008 */
2009 rum_setup_tx_list(sc);
2010
2011 /* update Rx filter */
2012 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2013
2014 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2015 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2016 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2017 RT2573_DROP_ACKCTS;
2018 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2019 tmp |= RT2573_DROP_TODS;
2020 if (!(ifp->if_flags & IFF_PROMISC))
2021 tmp |= RT2573_DROP_NOT_TO_ME;
2022 }
2023 rum_write(sc, RT2573_TXRX_CSR0, tmp);
2024
2025 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2026 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2027 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2028 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2029 return;
2030
2031fail: rum_stop(sc);
2032#undef N
2033}
2034
2035static void
2036rum_init(void *priv)
2037{
2038 struct rum_softc *sc = priv;
2039 struct ifnet *ifp = sc->sc_ifp;
2040 struct ieee80211com *ic = ifp->if_l2com;
2041
2042 RUM_LOCK(sc);
2043 rum_init_locked(sc);
2044 RUM_UNLOCK(sc);
2045
2046 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2047 ieee80211_start_all(ic); /* start all vap's */
2048}
2049
2050static void
2051rum_stop(struct rum_softc *sc)
2052{
2053 struct ifnet *ifp = sc->sc_ifp;
2054 uint32_t tmp;
2055
2056 RUM_LOCK_ASSERT(sc, MA_OWNED);
2057
2058 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
2059
2060 RUM_UNLOCK(sc);
2061
2062 /*
2063 * Drain the USB transfers, if not already drained:
2064 */
2065 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2066 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2067
2068 RUM_LOCK(sc);
2069
2070 rum_unsetup_tx_list(sc);
2071
2072 /* disable Rx */
2073 tmp = rum_read(sc, RT2573_TXRX_CSR0);
2074 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2075
2076 /* reset ASIC */
2077 rum_write(sc, RT2573_MAC_CSR1, 3);
2078 rum_write(sc, RT2573_MAC_CSR1, 0);
2079}
2080
2081static void
2082rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2083{
2084 struct usb_device_request req;
2085 uint16_t reg = RT2573_MCU_CODE_BASE;
2086 usb_error_t err;
2087
2088 /* copy firmware image into NIC */
2089 for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2090 err = rum_write(sc, reg, UGETDW(ucode));
2091 if (err) {
2092 /* firmware already loaded ? */
2093 device_printf(sc->sc_dev, "Firmware load "
2094 "failure! (ignored)\n");
2095 break;
2096 }
2097 }
2098
2099 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
2100 req.bRequest = RT2573_MCU_CNTL;
2101 USETW(req.wValue, RT2573_MCU_RUN);
2102 USETW(req.wIndex, 0);
2103 USETW(req.wLength, 0);
2104
2105 err = rum_do_request(sc, &req, NULL);
2106 if (err != 0) {
2107 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2108 usbd_errstr(err));
2109 }
2110
2111 /* give the chip some time to boot */
2112 rum_pause(sc, hz / 8);
2113}
2114
2115static int
2116rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2117{
2118 struct ieee80211com *ic = vap->iv_ic;
2119 const struct ieee80211_txparam *tp;
2120 struct rum_tx_desc desc;
2121 struct mbuf *m0;
2122
2123 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo);
2124 if (m0 == NULL) {
2125 return ENOBUFS;
2126 }
2127
2128 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2129 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ,
2130 m0->m_pkthdr.len, tp->mgmtrate);
2131
2132 /* copy the first 24 bytes of Tx descriptor into NIC memory */
2133 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24);
2134
2135 /* copy beacon header and payload into NIC memory */
2136 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *),
2137 m0->m_pkthdr.len);
2138
2139 m_freem(m0);
2140
2141 return 0;
2142}
2143
2144static int
2145rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
2146 const struct ieee80211_bpf_params *params)
2147{
2148 struct ifnet *ifp = ni->ni_ic->ic_ifp;
2149 struct rum_softc *sc = ifp->if_softc;
2150
2151 RUM_LOCK(sc);
2152 /* prevent management frames from being sent if we're not ready */
2153 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2154 RUM_UNLOCK(sc);
2155 m_freem(m);
2156 ieee80211_free_node(ni);
2157 return ENETDOWN;
2158 }
2159 if (sc->tx_nfree < RUM_TX_MINFREE) {
2160 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
2161 RUM_UNLOCK(sc);
2162 m_freem(m);
2163 ieee80211_free_node(ni);
2164 return EIO;
2165 }
2166
2167 ifp->if_opackets++;
2168
2169 if (params == NULL) {
2170 /*
2171 * Legacy path; interpret frame contents to decide
2172 * precisely how to send the frame.
2173 */
2174 if (rum_tx_mgt(sc, m, ni) != 0)
2175 goto bad;
2176 } else {
2177 /*
2178 * Caller supplied explicit parameters to use in
2179 * sending the frame.
2180 */
2181 if (rum_tx_raw(sc, m, ni, params) != 0)
2182 goto bad;
2183 }
2184 RUM_UNLOCK(sc);
2185
2186 return 0;
2187bad:
2188 ifp->if_oerrors++;
2189 RUM_UNLOCK(sc);
2190 ieee80211_free_node(ni);
2191 return EIO;
2192}
2193
2194static void
2195rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
2196{
2197 struct ieee80211vap *vap = ni->ni_vap;
2198 struct rum_vap *rvp = RUM_VAP(vap);
2199
2200 /* clear statistic registers (STA_CSR0 to STA_CSR5) */
2201 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2202
2203 ieee80211_ratectl_node_init(ni);
2204
2205 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2206}
2207
2208static void
2209rum_ratectl_timeout(void *arg)
2210{
2211 struct rum_vap *rvp = arg;
2212 struct ieee80211vap *vap = &rvp->vap;
2213 struct ieee80211com *ic = vap->iv_ic;
2214
2215 ieee80211_runtask(ic, &rvp->ratectl_task);
2216}
2217
2218static void
2219rum_ratectl_task(void *arg, int pending)
2220{
2221 struct rum_vap *rvp = arg;
2222 struct ieee80211vap *vap = &rvp->vap;
2223 struct ieee80211com *ic = vap->iv_ic;
2224 struct ifnet *ifp = ic->ic_ifp;
2225 struct rum_softc *sc = ifp->if_softc;
2226 struct ieee80211_node *ni = vap->iv_bss;
2227 int ok, fail;
2228 int sum, retrycnt;
2229
2230 RUM_LOCK(sc);
2231 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */
2232 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
2233
2234 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */
2235 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */
2236 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */
2237 sum = ok+fail;
2238 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail;
2239
2240 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt);
2241 (void) ieee80211_ratectl_rate(ni, NULL, 0);
2242
2243 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */
2244
2245 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
2246 RUM_UNLOCK(sc);
2247}
2248
2249static void
2250rum_scan_start(struct ieee80211com *ic)
2251{
2252 struct ifnet *ifp = ic->ic_ifp;
2253 struct rum_softc *sc = ifp->if_softc;
2254 uint32_t tmp;
2255
2256 RUM_LOCK(sc);
2257 /* abort TSF synchronization */
2258 tmp = rum_read(sc, RT2573_TXRX_CSR9);
2259 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff);
2260 rum_set_bssid(sc, ifp->if_broadcastaddr);
2261 RUM_UNLOCK(sc);
2262
2263}
2264
2265static void
2266rum_scan_end(struct ieee80211com *ic)
2267{
2268 struct rum_softc *sc = ic->ic_ifp->if_softc;
2269
2270 RUM_LOCK(sc);
2271 rum_enable_tsf_sync(sc);
2272 rum_set_bssid(sc, sc->sc_bssid);
2273 RUM_UNLOCK(sc);
2274
2275}
2276
2277static void
2278rum_set_channel(struct ieee80211com *ic)
2279{
2280 struct rum_softc *sc = ic->ic_ifp->if_softc;
2281
2282 RUM_LOCK(sc);
2283 rum_set_chan(sc, ic->ic_curchan);
2284 RUM_UNLOCK(sc);
2285}
2286
2287static int
2288rum_get_rssi(struct rum_softc *sc, uint8_t raw)
2289{
2290 struct ifnet *ifp = sc->sc_ifp;
2291 struct ieee80211com *ic = ifp->if_l2com;
2292 int lna, agc, rssi;
2293
2294 lna = (raw >> 5) & 0x3;
2295 agc = raw & 0x1f;
2296
2297 if (lna == 0) {
2298 /*
2299 * No RSSI mapping
2300 *
2301 * NB: Since RSSI is relative to noise floor, -1 is
2302 * adequate for caller to know error happened.
2303 */
2304 return -1;
2305 }
2306
2307 rssi = (2 * agc) - RT2573_NOISE_FLOOR;
2308
2309 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
2310 rssi += sc->rssi_2ghz_corr;
2311
2312 if (lna == 1)
2313 rssi -= 64;
2314 else if (lna == 2)
2315 rssi -= 74;
2316 else if (lna == 3)
2317 rssi -= 90;
2318 } else {
2319 rssi += sc->rssi_5ghz_corr;
2320
2321 if (!sc->ext_5ghz_lna && lna != 1)
2322 rssi += 4;
2323
2324 if (lna == 1)
2325 rssi -= 64;
2326 else if (lna == 2)
2327 rssi -= 86;
2328 else if (lna == 3)
2329 rssi -= 100;
2330 }
2331 return rssi;
2332}
2333
2334static int
2335rum_pause(struct rum_softc *sc, int timeout)
2336{
2337
2338 usb_pause_mtx(&sc->sc_mtx, timeout);
2339 return (0);
2340}
2341
2342static device_method_t rum_methods[] = {
2343 /* Device interface */
2344 DEVMETHOD(device_probe, rum_match),
2345 DEVMETHOD(device_attach, rum_attach),
2346 DEVMETHOD(device_detach, rum_detach),
2347
2348 { 0, 0 }
2349};
2350
2351static driver_t rum_driver = {
2352 .name = "rum",
2353 .methods = rum_methods,
2354 .size = sizeof(struct rum_softc),
2355};
2356
2357static devclass_t rum_devclass;
2358
2359DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
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