1 /* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org>
6 * Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org>
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21 #include <sys/cdefs.h>
22 /*
23 * Driver for Realtek RTL8188CE-VAU/RTL8188CUS/RTL8188EU/RTL8188RU/RTL8192CU/RTL8812AU/RTL8821AU.
24 */
25 #include "opt_wlan.h"
26
27 #include <sys/param.h>
28 #include <sys/sockio.h>
29 #include <sys/sysctl.h>
30 #include <sys/lock.h>
31 #include <sys/mutex.h>
32 #include <sys/mbuf.h>
33 #include <sys/kernel.h>
34 #include <sys/socket.h>
35 #include <sys/systm.h>
36 #include <sys/malloc.h>
37 #include <sys/module.h>
38 #include <sys/bus.h>
39 #include <sys/endian.h>
40 #include <sys/linker.h>
41 #include <sys/firmware.h>
42 #include <sys/kdb.h>
43
44 #include <net/bpf.h>
45 #include <net/if.h>
46 #include <net/if_var.h>
47 #include <net/if_arp.h>
48 #include <net/ethernet.h>
49 #include <net/if_dl.h>
50 #include <net/if_media.h>
51 #include <net/if_types.h>
52
53 #include <netinet/in.h>
54 #include <netinet/in_systm.h>
55 #include <netinet/in_var.h>
56 #include <netinet/if_ether.h>
57 #include <netinet/ip.h>
58
59 #include <net80211/ieee80211_var.h>
60 #include <net80211/ieee80211_regdomain.h>
61 #include <net80211/ieee80211_radiotap.h>
62 #include <net80211/ieee80211_ratectl.h>
63
64 #include <dev/rtwn/if_rtwnreg.h>
65 #include <dev/rtwn/if_rtwnvar.h>
66
67 #include <dev/rtwn/if_rtwn_beacon.h>
68 #include <dev/rtwn/if_rtwn_calib.h>
69 #include <dev/rtwn/if_rtwn_cam.h>
70 #include <dev/rtwn/if_rtwn_debug.h>
71 #include <dev/rtwn/if_rtwn_efuse.h>
72 #include <dev/rtwn/if_rtwn_fw.h>
73 #include <dev/rtwn/if_rtwn_ridx.h>
74 #include <dev/rtwn/if_rtwn_rx.h>
75 #include <dev/rtwn/if_rtwn_task.h>
76 #include <dev/rtwn/if_rtwn_tx.h>
77
78 #include <dev/rtwn/rtl8192c/r92c_reg.h>
79
80 static void rtwn_radiotap_attach(struct rtwn_softc *);
81 static void rtwn_vap_decrement_counters(struct rtwn_softc *,
82 enum ieee80211_opmode, int);
83 static void rtwn_set_ic_opmode(struct rtwn_softc *);
84 static struct ieee80211vap *rtwn_vap_create(struct ieee80211com *,
85 const char [IFNAMSIZ], int, enum ieee80211_opmode,
86 int, const uint8_t [IEEE80211_ADDR_LEN],
87 const uint8_t [IEEE80211_ADDR_LEN]);
88 static void rtwn_vap_delete(struct ieee80211vap *);
89 static int rtwn_read_chipid(struct rtwn_softc *);
90 static int rtwn_ioctl_reset(struct ieee80211vap *, u_long);
91 static void rtwn_set_media_status(struct rtwn_softc *,
92 union sec_param *);
93 #ifndef RTWN_WITHOUT_UCODE
94 static int rtwn_tx_fwpkt_check(struct rtwn_softc *,
95 struct ieee80211vap *);
96 static int rtwn_construct_nulldata(struct rtwn_softc *,
97 struct ieee80211vap *, uint8_t *, int);
98 static int rtwn_push_nulldata(struct rtwn_softc *,
99 struct ieee80211vap *);
100 static void rtwn_pwrmode_init(void *);
101 static void rtwn_set_pwrmode_cb(struct rtwn_softc *,
102 union sec_param *);
103 #endif
104 static void rtwn_tsf_sync_adhoc(void *);
105 static void rtwn_tsf_sync_adhoc_task(void *, int);
106 static void rtwn_tsf_sync_enable(struct rtwn_softc *,
107 struct ieee80211vap *);
108 static void rtwn_set_ack_preamble(struct rtwn_softc *);
109 static void rtwn_set_mode(struct rtwn_softc *, uint8_t, int);
110 static int rtwn_monitor_newstate(struct ieee80211vap *,
111 enum ieee80211_state, int);
112 static int rtwn_newstate(struct ieee80211vap *,
113 enum ieee80211_state, int);
114 static void rtwn_calc_basicrates(struct rtwn_softc *);
115 static int rtwn_run(struct rtwn_softc *,
116 struct ieee80211vap *);
117 #ifndef D4054
118 static void rtwn_watchdog(void *);
119 #endif
120 static void rtwn_parent(struct ieee80211com *);
121 static int rtwn_dma_init(struct rtwn_softc *);
122 static int rtwn_mac_init(struct rtwn_softc *);
123 static void rtwn_mrr_init(struct rtwn_softc *);
124 static void rtwn_scan_start(struct ieee80211com *);
125 static void rtwn_scan_curchan(struct ieee80211_scan_state *,
126 unsigned long);
127 static void rtwn_scan_end(struct ieee80211com *);
128 static void rtwn_getradiocaps(struct ieee80211com *, int, int *,
129 struct ieee80211_channel[]);
130 static void rtwn_update_chw(struct ieee80211com *);
131 static void rtwn_set_channel(struct ieee80211com *);
132 static int rtwn_wme_update(struct ieee80211com *);
133 static void rtwn_update_slot(struct ieee80211com *);
134 static void rtwn_update_slot_cb(struct rtwn_softc *,
135 union sec_param *);
136 static void rtwn_update_aifs(struct rtwn_softc *, uint8_t);
137 static void rtwn_update_promisc(struct ieee80211com *);
138 static void rtwn_update_mcast(struct ieee80211com *);
139 static int rtwn_set_bssid(struct rtwn_softc *,
140 const uint8_t *, int);
141 static int rtwn_set_macaddr(struct rtwn_softc *,
142 const uint8_t *, int);
143 static struct ieee80211_node *rtwn_node_alloc(struct ieee80211vap *,
144 const uint8_t mac[IEEE80211_ADDR_LEN]);
145 static void rtwn_newassoc(struct ieee80211_node *, int);
146 static void rtwn_node_free(struct ieee80211_node *);
147 static void rtwn_init_beacon_reg(struct rtwn_softc *);
148 static int rtwn_init(struct rtwn_softc *);
149 static void rtwn_stop(struct rtwn_softc *);
150
151 MALLOC_DEFINE(M_RTWN_PRIV, "rtwn_priv", "rtwn driver private state");
152
153 static const uint16_t wme2reg[] =
154 { R92C_EDCA_BE_PARAM, R92C_EDCA_BK_PARAM,
155 R92C_EDCA_VI_PARAM, R92C_EDCA_VO_PARAM };
156
157 int
rtwn_attach(struct rtwn_softc * sc)158 rtwn_attach(struct rtwn_softc *sc)
159 {
160 struct ieee80211com *ic = &sc->sc_ic;
161 int error;
162
163 sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
164
165 RTWN_NT_LOCK_INIT(sc);
166 rtwn_cmdq_init(sc);
167 #ifndef D4054
168 callout_init_mtx(&sc->sc_watchdog_to, &sc->sc_mtx, 0);
169 #endif
170 callout_init(&sc->sc_calib_to, 0);
171 callout_init(&sc->sc_pwrmode_init, 0);
172 mbufq_init(&sc->sc_snd, ifqmaxlen);
173
174 RTWN_LOCK(sc);
175 error = rtwn_read_chipid(sc);
176 RTWN_UNLOCK(sc);
177 if (error != 0) {
178 device_printf(sc->sc_dev, "unsupported test chip\n");
179 goto detach;
180 }
181
182 error = rtwn_read_rom(sc);
183 if (error != 0) {
184 device_printf(sc->sc_dev, "%s: cannot read rom, error %d\n",
185 __func__, error);
186 goto detach;
187 }
188
189 if (sc->macid_limit > RTWN_MACID_LIMIT) {
190 device_printf(sc->sc_dev,
191 "macid limit will be reduced from %d to %d\n",
192 sc->macid_limit, RTWN_MACID_LIMIT);
193 sc->macid_limit = RTWN_MACID_LIMIT;
194 }
195 if (sc->cam_entry_limit > RTWN_CAM_ENTRY_LIMIT) {
196 device_printf(sc->sc_dev,
197 "cam entry limit will be reduced from %d to %d\n",
198 sc->cam_entry_limit, RTWN_CAM_ENTRY_LIMIT);
199 sc->cam_entry_limit = RTWN_CAM_ENTRY_LIMIT;
200 }
201 if (sc->txdesc_len > RTWN_TX_DESC_SIZE) {
202 device_printf(sc->sc_dev,
203 "adjust size for Tx descriptor (current %d, needed %d)\n",
204 RTWN_TX_DESC_SIZE, sc->txdesc_len);
205 goto detach;
206 }
207
208 device_printf(sc->sc_dev, "MAC/BB %s, RF 6052 %dT%dR\n",
209 sc->name, sc->ntxchains, sc->nrxchains);
210
211 ic->ic_softc = sc;
212 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
213 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
214
215 /* set device capabilities */
216 ic->ic_caps =
217 IEEE80211_C_STA /* station mode */
218 | IEEE80211_C_MONITOR /* monitor mode */
219 | IEEE80211_C_IBSS /* adhoc mode */
220 | IEEE80211_C_HOSTAP /* hostap mode */
221 #if 0 /* TODO: HRPWM register setup */
222 #ifndef RTWN_WITHOUT_UCODE
223 | IEEE80211_C_PMGT /* Station-side power mgmt */
224 #endif
225 #endif
226 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
227 | IEEE80211_C_SHSLOT /* short slot time supported */
228 #if 0
229 | IEEE80211_C_BGSCAN /* capable of bg scanning */
230 #endif
231 | IEEE80211_C_WPA /* 802.11i */
232 | IEEE80211_C_WME /* 802.11e */
233 | IEEE80211_C_SWAMSDUTX /* Do software A-MSDU TX */
234 | IEEE80211_C_FF /* Atheros fast-frames */
235 | IEEE80211_C_TXPMGT /* TX power control */
236 ;
237
238 if (sc->sc_hwcrypto != RTWN_CRYPTO_SW) {
239 ic->ic_cryptocaps =
240 IEEE80211_CRYPTO_WEP |
241 IEEE80211_CRYPTO_TKIP |
242 IEEE80211_CRYPTO_AES_CCM;
243 }
244
245 ic->ic_htcaps =
246 IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
247 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
248 | IEEE80211_HTCAP_SMPS_OFF /* SM PS mode disabled */
249 /* s/w capabilities */
250 | IEEE80211_HTC_HT /* HT operation */
251 | IEEE80211_HTC_RX_AMSDU_AMPDU /* A-MSDU in A-MPDU */
252 | IEEE80211_HTC_AMPDU /* A-MPDU tx */
253 | IEEE80211_HTC_AMSDU /* A-MSDU tx */
254 ;
255
256 if (sc->sc_ht40) {
257 ic->ic_htcaps |=
258 IEEE80211_HTCAP_CHWIDTH40 /* 40 MHz channel width */
259 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
260 ;
261 }
262
263 ic->ic_txstream = sc->ntxchains;
264 ic->ic_rxstream = sc->nrxchains;
265
266 /* Enable TX watchdog */
267 #ifdef D4054
268 ic->ic_flags_ext |= IEEE80211_FEXT_WATCHDOG;
269 #endif
270
271 /* Adjust capabilities. */
272 rtwn_adj_devcaps(sc);
273
274 rtwn_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
275 ic->ic_channels);
276
277 /* XXX TODO: setup regdomain if R92C_CHANNEL_PLAN_BY_HW bit is set. */
278
279 ieee80211_ifattach(ic);
280 ic->ic_raw_xmit = rtwn_raw_xmit;
281 ic->ic_scan_start = rtwn_scan_start;
282 sc->sc_scan_curchan = ic->ic_scan_curchan;
283 ic->ic_scan_curchan = rtwn_scan_curchan;
284 ic->ic_scan_end = rtwn_scan_end;
285 ic->ic_getradiocaps = rtwn_getradiocaps;
286 ic->ic_update_chw = rtwn_update_chw;
287 ic->ic_set_channel = rtwn_set_channel;
288 ic->ic_transmit = rtwn_transmit;
289 ic->ic_parent = rtwn_parent;
290 ic->ic_vap_create = rtwn_vap_create;
291 ic->ic_vap_delete = rtwn_vap_delete;
292 ic->ic_wme.wme_update = rtwn_wme_update;
293 ic->ic_updateslot = rtwn_update_slot;
294 ic->ic_update_promisc = rtwn_update_promisc;
295 ic->ic_update_mcast = rtwn_update_mcast;
296 ic->ic_node_alloc = rtwn_node_alloc;
297 ic->ic_newassoc = rtwn_newassoc;
298 sc->sc_node_free = ic->ic_node_free;
299 ic->ic_node_free = rtwn_node_free;
300
301 /* Note: this has to happen AFTER ieee80211_ifattach() */
302 ieee80211_set_software_ciphers(ic, IEEE80211_CRYPTO_WEP |
303 IEEE80211_CRYPTO_TKIP | IEEE80211_CRYPTO_AES_CCM |
304 IEEE80211_CRYPTO_AES_GCM_128);
305
306 rtwn_postattach(sc);
307 rtwn_radiotap_attach(sc);
308
309 if (bootverbose)
310 ieee80211_announce(ic);
311
312 return (0);
313
314 detach:
315 return (ENXIO); /* failure */
316 }
317
318 static void
rtwn_radiotap_attach(struct rtwn_softc * sc)319 rtwn_radiotap_attach(struct rtwn_softc *sc)
320 {
321 struct rtwn_rx_radiotap_header *rxtap = &sc->sc_rxtap;
322 struct rtwn_tx_radiotap_header *txtap = &sc->sc_txtap;
323
324 ieee80211_radiotap_attach(&sc->sc_ic,
325 &txtap->wt_ihdr, sizeof(*txtap), RTWN_TX_RADIOTAP_PRESENT,
326 &rxtap->wr_ihdr, sizeof(*rxtap), RTWN_RX_RADIOTAP_PRESENT);
327 }
328
329 #ifdef RTWN_DEBUG
330 static int
rtwn_sysctl_reg_readwrite(SYSCTL_HANDLER_ARGS)331 rtwn_sysctl_reg_readwrite(SYSCTL_HANDLER_ARGS)
332 {
333 struct rtwn_softc *sc = arg1;
334 int error;
335 uint32_t val;
336
337 if (sc->sc_reg_addr > 0xffff)
338 return (EINVAL);
339
340 RTWN_LOCK(sc);
341 val = rtwn_read_4(sc, sc->sc_reg_addr);
342 RTWN_UNLOCK(sc);
343 error = sysctl_handle_int(oidp, &val, 0, req);
344 if (error || !req->newptr)
345 return (error);
346 RTWN_LOCK(sc);
347 rtwn_write_4(sc, sc->sc_reg_addr, val);
348 RTWN_UNLOCK(sc);
349 return (0);
350 }
351 #endif /* RTWN_DEBUG */
352
353 void
rtwn_sysctlattach(struct rtwn_softc * sc)354 rtwn_sysctlattach(struct rtwn_softc *sc)
355 {
356 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
357 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
358
359 sc->sc_reg_addr = 0;
360 #ifdef RTWN_DEBUG
361 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
362 "reg_addr", CTLFLAG_RW, &sc->sc_reg_addr,
363 sc->sc_reg_addr, "debug register address");
364 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
365 "reg_val", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
366 rtwn_sysctl_reg_readwrite, "I", "debug register read/write");
367 #endif /* RTWN_DEBUG */
368
369 sc->sc_ht40 = 0;
370 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
371 "ht40", CTLFLAG_RDTUN, &sc->sc_ht40,
372 sc->sc_ht40, "Enable 40 MHz mode support");
373
374 sc->sc_ena_tsf64 = 0;
375 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
376 "ena_tsf64", CTLFLAG_RWTUN, &sc->sc_ena_tsf64,
377 sc->sc_ena_tsf64, "Enable/disable per-packet TSF64 reporting");
378
379 #ifdef RTWN_DEBUG
380 SYSCTL_ADD_U32(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
381 "debug", CTLFLAG_RWTUN, &sc->sc_debug, sc->sc_debug,
382 "Control debugging printfs");
383 #endif
384
385 sc->sc_hwcrypto = RTWN_CRYPTO_PAIR;
386 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
387 "hwcrypto", CTLFLAG_RDTUN, &sc->sc_hwcrypto,
388 sc->sc_hwcrypto, "Enable h/w crypto: "
389 "0 - disable, 1 - pairwise keys, 2 - all keys");
390 if (sc->sc_hwcrypto >= RTWN_CRYPTO_MAX)
391 sc->sc_hwcrypto = RTWN_CRYPTO_FULL;
392
393 sc->sc_ratectl_sysctl = RTWN_RATECTL_NET80211;
394 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
395 "ratectl", CTLFLAG_RDTUN, &sc->sc_ratectl_sysctl,
396 sc->sc_ratectl_sysctl, "Select rate control mechanism: "
397 "0 - disabled, 1 - via net80211, 2 - via firmware");
398 if (sc->sc_ratectl_sysctl >= RTWN_RATECTL_MAX)
399 sc->sc_ratectl_sysctl = RTWN_RATECTL_FW;
400
401 sc->sc_ratectl = sc->sc_ratectl_sysctl;
402 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
403 "ratectl_selected", CTLFLAG_RD, &sc->sc_ratectl,
404 sc->sc_ratectl,
405 "Currently selected rate control mechanism (by the driver)");
406 }
407
408 void
rtwn_detach(struct rtwn_softc * sc)409 rtwn_detach(struct rtwn_softc *sc)
410 {
411 struct ieee80211com *ic = &sc->sc_ic;
412
413 if (ic->ic_softc == sc) {
414 /* Stop command queue. */
415 RTWN_CMDQ_LOCK(sc);
416 sc->sc_detached = 1;
417 RTWN_CMDQ_UNLOCK(sc);
418
419 ieee80211_draintask(ic, &sc->cmdq_task);
420 ieee80211_ifdetach(ic);
421 }
422
423 rtwn_cmdq_destroy(sc);
424 if (RTWN_NT_LOCK_INITIALIZED(sc))
425 RTWN_NT_LOCK_DESTROY(sc);
426 }
427
428 void
rtwn_suspend(struct rtwn_softc * sc)429 rtwn_suspend(struct rtwn_softc *sc)
430 {
431 struct ieee80211com *ic = &sc->sc_ic;
432
433 ieee80211_suspend_all(ic);
434 }
435
436 void
rtwn_resume(struct rtwn_softc * sc)437 rtwn_resume(struct rtwn_softc *sc)
438 {
439 struct ieee80211com *ic = &sc->sc_ic;
440
441 ieee80211_resume_all(ic);
442 }
443
444 void
rtwn_attach_vht_cap_info_mcs(struct rtwn_softc * sc)445 rtwn_attach_vht_cap_info_mcs(struct rtwn_softc *sc)
446 {
447 struct ieee80211com *ic = &sc->sc_ic;
448 uint32_t rx_mcs = 0, tx_mcs = 0;
449
450 for (int i = 0 ; i < 8; i++) {
451 if (i < sc->ntxchains)
452 tx_mcs |= (IEEE80211_VHT_MCS_SUPPORT_0_9 << (i*2));
453 else
454 tx_mcs |= (IEEE80211_VHT_MCS_NOT_SUPPORTED << (i*2));
455
456 if (i < sc->nrxchains)
457 rx_mcs |= (IEEE80211_VHT_MCS_SUPPORT_0_9 << (i*2));
458 else
459 rx_mcs |= (IEEE80211_VHT_MCS_NOT_SUPPORTED << (i*2));
460 }
461 ic->ic_vht_cap.supp_mcs.rx_mcs_map = rx_mcs;
462 ic->ic_vht_cap.supp_mcs.rx_highest = 0;
463 ic->ic_vht_cap.supp_mcs.tx_mcs_map = tx_mcs;
464 ic->ic_vht_cap.supp_mcs.tx_highest = 0;
465 }
466
467 static void
rtwn_vap_decrement_counters(struct rtwn_softc * sc,enum ieee80211_opmode opmode,int id)468 rtwn_vap_decrement_counters(struct rtwn_softc *sc,
469 enum ieee80211_opmode opmode, int id)
470 {
471
472 RTWN_ASSERT_LOCKED(sc);
473
474 if (id != RTWN_VAP_ID_INVALID) {
475 KASSERT(id == 0 || id == 1, ("wrong vap id %d!\n", id));
476 KASSERT(sc->vaps[id] != NULL, ("vap pointer is NULL\n"));
477 sc->vaps[id] = NULL;
478 }
479
480 switch (opmode) {
481 case IEEE80211_M_HOSTAP:
482 sc->ap_vaps--;
483 /* FALLTHROUGH */
484 case IEEE80211_M_IBSS:
485 sc->bcn_vaps--;
486 /* FALLTHROUGH */
487 case IEEE80211_M_STA:
488 sc->nvaps--;
489 break;
490 case IEEE80211_M_MONITOR:
491 sc->mon_vaps--;
492 break;
493 default:
494 KASSERT(0, ("wrong opmode %d\n", opmode));
495 break;
496 }
497
498 KASSERT(sc->vaps_running >= 0 && sc->monvaps_running >= 0,
499 ("number of running vaps is negative (vaps %d, monvaps %d)\n",
500 sc->vaps_running, sc->monvaps_running));
501 KASSERT(sc->vaps_running - sc->monvaps_running <= RTWN_PORT_COUNT,
502 ("number of running vaps is too big (vaps %d, monvaps %d)\n",
503 sc->vaps_running, sc->monvaps_running));
504
505 KASSERT(sc->nvaps >= 0 && sc->nvaps <= RTWN_PORT_COUNT,
506 ("wrong value %d for nvaps\n", sc->nvaps));
507 KASSERT(sc->mon_vaps >= 0, ("mon_vaps is negative (%d)\n",
508 sc->mon_vaps));
509 KASSERT(sc->bcn_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) &&
510 sc->bcn_vaps <= RTWN_PORT_COUNT) || sc->bcn_vaps <= 1),
511 ("bcn_vaps value %d is wrong\n", sc->bcn_vaps));
512 KASSERT(sc->ap_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) &&
513 sc->ap_vaps <= RTWN_PORT_COUNT) || sc->ap_vaps <= 1),
514 ("ap_vaps value %d is wrong\n", sc->ap_vaps));
515 }
516
517 static void
rtwn_set_ic_opmode(struct rtwn_softc * sc)518 rtwn_set_ic_opmode(struct rtwn_softc *sc)
519 {
520 struct ieee80211com *ic = &sc->sc_ic;
521
522 RTWN_ASSERT_LOCKED(sc);
523
524 /* for ieee80211_reset_erp() */
525 if (sc->bcn_vaps - sc->ap_vaps > 0)
526 ic->ic_opmode = IEEE80211_M_IBSS;
527 else if (sc->ap_vaps > 0)
528 ic->ic_opmode = IEEE80211_M_HOSTAP;
529 else if (sc->nvaps > 0)
530 ic->ic_opmode = IEEE80211_M_STA;
531 else
532 ic->ic_opmode = IEEE80211_M_MONITOR;
533 }
534
535 static struct ieee80211vap *
rtwn_vap_create(struct ieee80211com * ic,const char name[IFNAMSIZ],int unit,enum ieee80211_opmode opmode,int flags,const uint8_t bssid[IEEE80211_ADDR_LEN],const uint8_t mac[IEEE80211_ADDR_LEN])536 rtwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
537 enum ieee80211_opmode opmode, int flags,
538 const uint8_t bssid[IEEE80211_ADDR_LEN],
539 const uint8_t mac[IEEE80211_ADDR_LEN])
540 {
541 struct rtwn_softc *sc = ic->ic_softc;
542 struct rtwn_vap *uvp;
543 struct ieee80211vap *vap;
544 int id = RTWN_VAP_ID_INVALID;
545
546 RTWN_LOCK(sc);
547 KASSERT(sc->nvaps <= RTWN_PORT_COUNT,
548 ("nvaps overflow (%d > %d)\n", sc->nvaps, RTWN_PORT_COUNT));
549 KASSERT(sc->ap_vaps <= RTWN_PORT_COUNT,
550 ("ap_vaps overflow (%d > %d)\n", sc->ap_vaps, RTWN_PORT_COUNT));
551 KASSERT(sc->bcn_vaps <= RTWN_PORT_COUNT,
552 ("bcn_vaps overflow (%d > %d)\n", sc->bcn_vaps, RTWN_PORT_COUNT));
553
554 if (opmode != IEEE80211_M_MONITOR) {
555 switch (sc->nvaps) {
556 case 0:
557 id = 0;
558 break;
559 case 1:
560 if (sc->vaps[1] == NULL)
561 id = 1;
562 else if (sc->vaps[0] == NULL)
563 id = 0;
564 KASSERT(id != RTWN_VAP_ID_INVALID,
565 ("no free ports left\n"));
566 break;
567 case 2:
568 default:
569 goto fail;
570 }
571
572 if (opmode == IEEE80211_M_IBSS ||
573 opmode == IEEE80211_M_HOSTAP) {
574 if ((sc->bcn_vaps == 1 && !RTWN_CHIP_HAS_BCNQ1(sc)) ||
575 sc->bcn_vaps == RTWN_PORT_COUNT)
576 goto fail;
577 }
578 }
579
580 switch (opmode) {
581 case IEEE80211_M_HOSTAP:
582 sc->ap_vaps++;
583 /* FALLTHROUGH */
584 case IEEE80211_M_IBSS:
585 sc->bcn_vaps++;
586 /* FALLTHROUGH */
587 case IEEE80211_M_STA:
588 sc->nvaps++;
589 break;
590 case IEEE80211_M_MONITOR:
591 sc->mon_vaps++;
592 break;
593 default:
594 KASSERT(0, ("unknown opmode %d\n", opmode));
595 goto fail;
596 }
597 RTWN_UNLOCK(sc);
598
599 uvp = malloc(sizeof(struct rtwn_vap), M_80211_VAP, M_WAITOK | M_ZERO);
600 uvp->id = id;
601 if (id != RTWN_VAP_ID_INVALID) {
602 RTWN_LOCK(sc);
603 sc->vaps[id] = uvp;
604 RTWN_UNLOCK(sc);
605 }
606 vap = &uvp->vap;
607 /* enable s/w bmiss handling for sta mode */
608
609 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
610 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
611 /* out of memory */
612 free(uvp, M_80211_VAP);
613
614 RTWN_LOCK(sc);
615 rtwn_vap_decrement_counters(sc, opmode, id);
616 RTWN_UNLOCK(sc);
617
618 return (NULL);
619 }
620
621 rtwn_beacon_init(sc, &uvp->bcn_desc.txd[0], uvp->id);
622 rtwn_vap_preattach(sc, vap);
623
624 /* override state transition machine */
625 uvp->newstate = vap->iv_newstate;
626 if (opmode == IEEE80211_M_MONITOR)
627 vap->iv_newstate = rtwn_monitor_newstate;
628 else
629 vap->iv_newstate = rtwn_newstate;
630 vap->iv_update_beacon = rtwn_update_beacon;
631 vap->iv_reset = rtwn_ioctl_reset;
632 vap->iv_key_alloc = rtwn_key_alloc;
633 vap->iv_key_set = rtwn_key_set;
634 vap->iv_key_delete = rtwn_key_delete;
635 vap->iv_max_aid = sc->macid_limit;
636
637 /* 802.11n parameters */
638 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16;
639 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K;
640 vap->iv_ampdu_limit = IEEE80211_HTCAP_MAXRXAMPDU_64K;
641
642 TIMEOUT_TASK_INIT(taskqueue_thread, &uvp->tx_beacon_csa, 0,
643 rtwn_tx_beacon_csa, vap);
644 if (opmode == IEEE80211_M_IBSS) {
645 uvp->recv_mgmt = vap->iv_recv_mgmt;
646 vap->iv_recv_mgmt = rtwn_adhoc_recv_mgmt;
647 TASK_INIT(&uvp->tsf_sync_adhoc_task, 0,
648 rtwn_tsf_sync_adhoc_task, vap);
649 callout_init(&uvp->tsf_sync_adhoc, 0);
650 }
651
652 /*
653 * NB: driver can select net80211 RA even when user requests
654 * another mechanism.
655 */
656 ieee80211_ratectl_init(vap);
657
658 /* complete setup */
659 ieee80211_vap_attach(vap, ieee80211_media_change,
660 ieee80211_media_status, mac);
661
662 RTWN_LOCK(sc);
663 rtwn_set_ic_opmode(sc);
664 if (sc->sc_flags & RTWN_RUNNING) {
665 if (uvp->id != RTWN_VAP_ID_INVALID)
666 rtwn_set_macaddr(sc, vap->iv_myaddr, uvp->id);
667
668 rtwn_rxfilter_update(sc);
669 }
670 RTWN_UNLOCK(sc);
671
672 return (vap);
673
674 fail:
675 RTWN_UNLOCK(sc);
676 return (NULL);
677 }
678
679 static void
rtwn_vap_delete(struct ieee80211vap * vap)680 rtwn_vap_delete(struct ieee80211vap *vap)
681 {
682 struct ieee80211com *ic = vap->iv_ic;
683 struct rtwn_softc *sc = ic->ic_softc;
684 struct rtwn_vap *uvp = RTWN_VAP(vap);
685 int i;
686
687 /* Put vap into INIT state + stop device if needed. */
688 ieee80211_stop(vap);
689 for (i = 0; i < NET80211_IV_NSTATE_NUM; i++)
690 ieee80211_draintask(ic, &vap->iv_nstate_task[i]);
691 ieee80211_draintask(ic, &ic->ic_parent_task);
692
693 RTWN_LOCK(sc);
694 /* Cancel any unfinished Tx. */
695 rtwn_reset_lists(sc, vap);
696 if (uvp->bcn_mbuf != NULL)
697 m_freem(uvp->bcn_mbuf);
698 rtwn_vap_decrement_counters(sc, vap->iv_opmode, uvp->id);
699 rtwn_set_ic_opmode(sc);
700 if (sc->sc_flags & RTWN_RUNNING)
701 rtwn_rxfilter_update(sc);
702 RTWN_UNLOCK(sc);
703
704 if (vap->iv_opmode == IEEE80211_M_IBSS) {
705 ieee80211_draintask(ic, &uvp->tsf_sync_adhoc_task);
706 callout_drain(&uvp->tsf_sync_adhoc);
707 }
708
709 ieee80211_ratectl_deinit(vap);
710 ieee80211_vap_detach(vap);
711 free(uvp, M_80211_VAP);
712 }
713
714 static int
rtwn_read_chipid(struct rtwn_softc * sc)715 rtwn_read_chipid(struct rtwn_softc *sc)
716 {
717 uint32_t reg;
718
719 reg = rtwn_read_4(sc, R92C_SYS_CFG);
720 if (reg & R92C_SYS_CFG_TRP_VAUX_EN) /* test chip */
721 return (EOPNOTSUPP);
722
723 rtwn_read_chipid_vendor(sc, reg);
724
725 return (0);
726 }
727
728 static int
rtwn_ioctl_reset(struct ieee80211vap * vap,u_long cmd)729 rtwn_ioctl_reset(struct ieee80211vap *vap, u_long cmd)
730 {
731 int error;
732
733 switch (cmd) {
734 #ifndef RTWN_WITHOUT_UCODE
735 case IEEE80211_IOC_POWERSAVE:
736 case IEEE80211_IOC_POWERSAVESLEEP:
737 {
738 struct rtwn_softc *sc = vap->iv_ic->ic_softc;
739 struct rtwn_vap *uvp = RTWN_VAP(vap);
740
741 if (vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
742 RTWN_LOCK(sc);
743 if (sc->sc_flags & RTWN_RUNNING)
744 error = rtwn_set_pwrmode(sc, vap, 1);
745 else
746 error = 0;
747 RTWN_UNLOCK(sc);
748 if (error != 0)
749 error = ENETRESET;
750 } else
751 error = EOPNOTSUPP;
752 break;
753 }
754 #endif
755 case IEEE80211_IOC_SHORTGI:
756 case IEEE80211_IOC_RTSTHRESHOLD:
757 case IEEE80211_IOC_PROTMODE:
758 case IEEE80211_IOC_HTPROTMODE:
759 case IEEE80211_IOC_LDPC:
760 error = 0;
761 break;
762 case IEEE80211_IOC_TXPOWER:
763 {
764 struct rtwn_softc *sc = vap->iv_ic->ic_softc;
765 RTWN_LOCK(sc);
766 error = rtwn_set_tx_power(sc, vap);
767 RTWN_UNLOCK(sc);
768 }
769 break;
770 default:
771 error = ENETRESET;
772 break;
773 }
774
775 return (error);
776 }
777
778 static void
rtwn_set_media_status(struct rtwn_softc * sc,union sec_param * data)779 rtwn_set_media_status(struct rtwn_softc *sc, union sec_param *data)
780 {
781 sc->sc_set_media_status(sc, data->macid);
782 }
783
784 #ifndef RTWN_WITHOUT_UCODE
785 static int
rtwn_tx_fwpkt_check(struct rtwn_softc * sc,struct ieee80211vap * vap)786 rtwn_tx_fwpkt_check(struct rtwn_softc *sc, struct ieee80211vap *vap)
787 {
788 int ntries, error;
789
790 for (ntries = 0; ntries < 5; ntries++) {
791 error = rtwn_push_nulldata(sc, vap);
792 if (error == 0)
793 break;
794 }
795 if (ntries == 5) {
796 device_printf(sc->sc_dev,
797 "%s: cannot push f/w frames into chip, error %d!\n",
798 __func__, error);
799 return (error);
800 }
801
802 return (0);
803 }
804
805 static int
rtwn_construct_nulldata(struct rtwn_softc * sc,struct ieee80211vap * vap,uint8_t * ptr,int qos)806 rtwn_construct_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap,
807 uint8_t *ptr, int qos)
808 {
809 struct rtwn_vap *uvp = RTWN_VAP(vap);
810 struct ieee80211com *ic = &sc->sc_ic;
811 struct rtwn_tx_desc_common *txd;
812 struct ieee80211_frame *wh;
813 int pktlen;
814
815 /* XXX obtain from net80211 */
816 wh = (struct ieee80211_frame *)(ptr + sc->txdesc_len);
817 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA;
818 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS;
819 IEEE80211_ADDR_COPY(wh->i_addr1, vap->iv_bss->ni_bssid);
820 IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
821 IEEE80211_ADDR_COPY(wh->i_addr3, vap->iv_bss->ni_macaddr);
822
823 txd = (struct rtwn_tx_desc_common *)ptr;
824 txd->offset = sc->txdesc_len;
825 pktlen = sc->txdesc_len;
826 if (qos) {
827 struct ieee80211_qosframe *qwh;
828 const int tid = WME_AC_TO_TID(WME_AC_BE);
829
830 qwh = (struct ieee80211_qosframe *)wh;
831 qwh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_QOS_NULL;
832 qwh->i_qos[0] = tid & IEEE80211_QOS_TID;
833
834 txd->pktlen = htole16(sizeof(struct ieee80211_qosframe));
835 pktlen += sizeof(struct ieee80211_qosframe);
836 } else {
837 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA;
838
839 txd->pktlen = htole16(sizeof(struct ieee80211_frame));
840 pktlen += sizeof(struct ieee80211_frame);
841 }
842
843 rtwn_fill_tx_desc_null(sc, ptr,
844 ic->ic_curmode == IEEE80211_MODE_11B, qos, uvp->id);
845
846 return (pktlen);
847 }
848
849 static int
rtwn_push_nulldata(struct rtwn_softc * sc,struct ieee80211vap * vap)850 rtwn_push_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap)
851 {
852 struct rtwn_vap *uvp = RTWN_VAP(vap);
853 struct ieee80211com *ic = vap->iv_ic;
854 struct ieee80211_channel *c = ic->ic_curchan;
855 struct mbuf *m;
856 uint8_t *ptr;
857 int required_size, bcn_size, null_size, null_data, error;
858
859 if (!(sc->sc_flags & RTWN_FW_LOADED))
860 return (0); /* requires firmware */
861
862 KASSERT(sc->page_size > 0, ("page size was not set!\n"));
863
864 /* Leave some space for beacon (multi-vap) */
865 bcn_size = roundup(RTWN_BCN_MAX_SIZE, sc->page_size);
866 /* 1 page for Null Data + 1 page for Qos Null Data frames. */
867 required_size = bcn_size + sc->page_size * 2;
868
869 m = m_get2(required_size, M_NOWAIT, MT_DATA, M_PKTHDR);
870 if (m == NULL)
871 return (ENOMEM);
872
873 /* Setup beacon descriptor. */
874 rtwn_beacon_set_rate(sc, &uvp->bcn_desc.txd[0],
875 IEEE80211_IS_CHAN_5GHZ(c));
876
877 ptr = mtod(m, uint8_t *);
878 memset(ptr, 0, required_size - sc->txdesc_len);
879
880 /* Construct Null Data frame. */
881 ptr += bcn_size - sc->txdesc_len;
882 null_size = rtwn_construct_nulldata(sc, vap, ptr, 0);
883 KASSERT(null_size < sc->page_size,
884 ("recalculate size for Null Data frame\n"));
885
886 /* Construct Qos Null Data frame. */
887 ptr += roundup(null_size, sc->page_size);
888 null_size = rtwn_construct_nulldata(sc, vap, ptr, 1);
889 KASSERT(null_size < sc->page_size,
890 ("recalculate size for Qos Null Data frame\n"));
891
892 /* Do not try to detect a beacon here. */
893 rtwn_setbits_1_shift(sc, R92C_CR, 0, R92C_CR_ENSWBCN, 1);
894 rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL,
895 R92C_FWHW_TXQ_CTRL_REAL_BEACON, 0, 2);
896
897 if (uvp->bcn_mbuf != NULL) {
898 rtwn_beacon_unload(sc, uvp->id);
899 m_freem(uvp->bcn_mbuf);
900 }
901
902 m->m_pkthdr.len = m->m_len = required_size - sc->txdesc_len;
903 uvp->bcn_mbuf = m;
904
905 error = rtwn_tx_beacon_check(sc, uvp);
906 if (error != 0) {
907 RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON,
908 "%s: frame was not recognized!\n", __func__);
909 goto fail;
910 }
911
912 /* Setup addresses in firmware. */
913 null_data = howmany(bcn_size, sc->page_size);
914 error = rtwn_set_rsvd_page(sc, 0, null_data, null_data + 1);
915 if (error != 0) {
916 device_printf(sc->sc_dev,
917 "%s: CMD_RSVD_PAGE was not sent, error %d\n",
918 __func__, error);
919 goto fail;
920 }
921
922 fail:
923 /* Re-enable beacon detection. */
924 rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL,
925 0, R92C_FWHW_TXQ_CTRL_REAL_BEACON, 2);
926 rtwn_setbits_1_shift(sc, R92C_CR, R92C_CR_ENSWBCN, 0, 1);
927
928 /* Restore beacon (if present). */
929 if (sc->bcn_vaps > 0 && sc->vaps[!uvp->id] != NULL) {
930 struct rtwn_vap *uvp2 = sc->vaps[!uvp->id];
931
932 if (uvp2->curr_mode != R92C_MSR_NOLINK)
933 error = rtwn_tx_beacon_check(sc, uvp2);
934 }
935
936 return (error);
937 }
938
939 static void
rtwn_pwrmode_init(void * arg)940 rtwn_pwrmode_init(void *arg)
941 {
942 struct rtwn_softc *sc = arg;
943
944 rtwn_cmd_sleepable(sc, NULL, 0, rtwn_set_pwrmode_cb);
945 }
946
947 static void
rtwn_set_pwrmode_cb(struct rtwn_softc * sc,union sec_param * data)948 rtwn_set_pwrmode_cb(struct rtwn_softc *sc, union sec_param *data)
949 {
950 struct ieee80211vap *vap = &sc->vaps[0]->vap;
951
952 if (vap != NULL)
953 rtwn_set_pwrmode(sc, vap, 1);
954 }
955 #endif
956
957 static void
rtwn_tsf_sync_adhoc(void * arg)958 rtwn_tsf_sync_adhoc(void *arg)
959 {
960 struct ieee80211vap *vap = arg;
961 struct ieee80211com *ic = vap->iv_ic;
962 struct rtwn_vap *uvp = RTWN_VAP(vap);
963
964 if (uvp->curr_mode != R92C_MSR_NOLINK) {
965 /* Do it in process context. */
966 ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
967 }
968 }
969
970 /*
971 * Workaround for TSF synchronization:
972 * when BSSID filter in IBSS mode is not set
973 * (and TSF synchronization is enabled), then any beacon may update it.
974 * This routine synchronizes it when BSSID matching is enabled (IBSS merge
975 * is not possible during this period).
976 *
977 * NOTE: there is no race with rtwn_newstate(), since it uses the same
978 * taskqueue.
979 */
980 static void
rtwn_tsf_sync_adhoc_task(void * arg,int pending)981 rtwn_tsf_sync_adhoc_task(void *arg, int pending)
982 {
983 struct ieee80211vap *vap = arg;
984 struct rtwn_vap *uvp = RTWN_VAP(vap);
985 struct rtwn_softc *sc = vap->iv_ic->ic_softc;
986 struct ieee80211_node *ni;
987
988 RTWN_LOCK(sc);
989 ni = ieee80211_ref_node(vap->iv_bss);
990
991 /* Accept beacons with the same BSSID. */
992 rtwn_set_rx_bssid_all(sc, 0);
993
994 /* Deny RCR updates. */
995 sc->sc_flags |= RTWN_RCR_LOCKED;
996
997 /* Enable synchronization. */
998 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
999 R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
1000
1001 /* Synchronize. */
1002 rtwn_delay(sc, ni->ni_intval * 5 * 1000);
1003
1004 /* Disable synchronization. */
1005 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
1006 0, R92C_BCN_CTRL_DIS_TSF_UDT0);
1007
1008 /* Accept all beacons. */
1009 sc->sc_flags &= ~RTWN_RCR_LOCKED;
1010 rtwn_set_rx_bssid_all(sc, 1);
1011
1012 /* Schedule next TSF synchronization. */
1013 callout_reset(&uvp->tsf_sync_adhoc, 60*hz, rtwn_tsf_sync_adhoc, vap);
1014
1015 ieee80211_free_node(ni);
1016 RTWN_UNLOCK(sc);
1017 }
1018
1019 static void
rtwn_tsf_sync_enable(struct rtwn_softc * sc,struct ieee80211vap * vap)1020 rtwn_tsf_sync_enable(struct rtwn_softc *sc, struct ieee80211vap *vap)
1021 {
1022 struct ieee80211com *ic = &sc->sc_ic;
1023 struct rtwn_vap *uvp = RTWN_VAP(vap);
1024
1025 /* Reset TSF. */
1026 rtwn_write_1(sc, R92C_DUAL_TSF_RST, R92C_DUAL_TSF_RESET(uvp->id));
1027
1028 switch (vap->iv_opmode) {
1029 case IEEE80211_M_STA:
1030 /* Enable TSF synchronization. */
1031 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
1032 R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
1033 /* Enable TSF beacon handling, needed for RA */
1034 rtwn_sta_beacon_enable(sc, uvp->id, true);
1035 break;
1036 case IEEE80211_M_IBSS:
1037 ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
1038 /* FALLTHROUGH */
1039 case IEEE80211_M_HOSTAP:
1040 /* Enable beaconing. */
1041 rtwn_beacon_enable(sc, uvp->id, 1);
1042 break;
1043 default:
1044 device_printf(sc->sc_dev, "undefined opmode %d\n",
1045 vap->iv_opmode);
1046 return;
1047 }
1048 }
1049
1050 static void
rtwn_set_ack_preamble(struct rtwn_softc * sc)1051 rtwn_set_ack_preamble(struct rtwn_softc *sc)
1052 {
1053 struct ieee80211com *ic = &sc->sc_ic;
1054 uint32_t reg;
1055
1056 reg = rtwn_read_4(sc, R92C_WMAC_TRXPTCL_CTL);
1057 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
1058 reg |= R92C_WMAC_TRXPTCL_SHPRE;
1059 else
1060 reg &= ~R92C_WMAC_TRXPTCL_SHPRE;
1061 rtwn_write_4(sc, R92C_WMAC_TRXPTCL_CTL, reg);
1062 }
1063
1064 static void
rtwn_set_mode(struct rtwn_softc * sc,uint8_t mode,int id)1065 rtwn_set_mode(struct rtwn_softc *sc, uint8_t mode, int id)
1066 {
1067
1068 rtwn_setbits_1(sc, R92C_MSR, R92C_MSR_MASK << id * 2, mode << id * 2);
1069 if (sc->vaps[id] != NULL)
1070 sc->vaps[id]->curr_mode = mode;
1071 }
1072
1073 static int
rtwn_monitor_newstate(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)1074 rtwn_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate,
1075 int arg)
1076 {
1077 struct ieee80211com *ic = vap->iv_ic;
1078 struct rtwn_softc *sc = ic->ic_softc;
1079 struct rtwn_vap *uvp = RTWN_VAP(vap);
1080
1081 RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
1082 ieee80211_state_name[vap->iv_state],
1083 ieee80211_state_name[nstate]);
1084
1085 if (vap->iv_state != nstate) {
1086 IEEE80211_UNLOCK(ic);
1087 RTWN_LOCK(sc);
1088
1089 switch (nstate) {
1090 case IEEE80211_S_INIT:
1091 sc->vaps_running--;
1092 sc->monvaps_running--;
1093
1094 if (sc->vaps_running == 0) {
1095 /* Turn link LED off. */
1096 rtwn_set_led(sc, RTWN_LED_LINK, 0);
1097 }
1098 break;
1099 case IEEE80211_S_RUN:
1100 sc->vaps_running++;
1101 sc->monvaps_running++;
1102
1103 if (sc->vaps_running == 1) {
1104 /* Turn link LED on. */
1105 rtwn_set_led(sc, RTWN_LED_LINK, 1);
1106 }
1107 break;
1108 default:
1109 /* NOTREACHED */
1110 break;
1111 }
1112
1113 RTWN_UNLOCK(sc);
1114 IEEE80211_LOCK(ic);
1115 }
1116
1117 return (uvp->newstate(vap, nstate, arg));
1118 }
1119
1120 static int
rtwn_newstate(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)1121 rtwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1122 {
1123 struct rtwn_vap *uvp = RTWN_VAP(vap);
1124 struct ieee80211com *ic = vap->iv_ic;
1125 struct rtwn_softc *sc = ic->ic_softc;
1126 enum ieee80211_state ostate;
1127 int error, early_newstate;
1128
1129 ostate = vap->iv_state;
1130 RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
1131 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
1132
1133 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC &&
1134 ostate == IEEE80211_S_INIT && nstate == IEEE80211_S_RUN) {
1135 /* need to call iv_newstate() firstly */
1136 error = uvp->newstate(vap, nstate, arg);
1137 if (error != 0)
1138 return (error);
1139
1140 early_newstate = 1;
1141 } else
1142 early_newstate = 0;
1143
1144 if (ostate == IEEE80211_S_CSA) {
1145 taskqueue_cancel_timeout(taskqueue_thread,
1146 &uvp->tx_beacon_csa, NULL);
1147
1148 /*
1149 * In multi-vap case second counter may not be cleared
1150 * properly.
1151 */
1152 vap->iv_csa_count = 0;
1153 }
1154 IEEE80211_UNLOCK(ic);
1155 RTWN_LOCK(sc);
1156
1157 if (ostate == IEEE80211_S_CSA) {
1158 /* Unblock all queues (multi-vap case). */
1159 rtwn_write_1(sc, R92C_TXPAUSE, 0);
1160 }
1161
1162 if ((ostate == IEEE80211_S_RUN && nstate != IEEE80211_S_CSA) ||
1163 ostate == IEEE80211_S_CSA) {
1164 sc->vaps_running--;
1165
1166 /* Set media status to 'No Link'. */
1167 rtwn_set_mode(sc, R92C_MSR_NOLINK, uvp->id);
1168
1169 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1170 /* Stop periodical TSF synchronization. */
1171 callout_stop(&uvp->tsf_sync_adhoc);
1172 }
1173
1174 /* Disable TSF synchronization / beaconing. */
1175 rtwn_beacon_enable(sc, uvp->id, 0);
1176 rtwn_sta_beacon_enable(sc, uvp->id, false);
1177 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
1178 0, R92C_BCN_CTRL_DIS_TSF_UDT0);
1179
1180 /* NB: monitor mode vaps are using port 0. */
1181 if (uvp->id != 0 || sc->monvaps_running == 0) {
1182 /* Reset TSF. */
1183 rtwn_write_1(sc, R92C_DUAL_TSF_RST,
1184 R92C_DUAL_TSF_RESET(uvp->id));
1185 }
1186
1187 #ifndef RTWN_WITHOUT_UCODE
1188 if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 && uvp->id == 0) {
1189 /* Disable power management. */
1190 callout_stop(&sc->sc_pwrmode_init);
1191 rtwn_set_pwrmode(sc, vap, 0);
1192 }
1193 #endif
1194 if (sc->vaps_running - sc->monvaps_running > 0) {
1195 /* Recalculate basic rates bitmap. */
1196 rtwn_calc_basicrates(sc);
1197 }
1198
1199 if (sc->vaps_running == sc->monvaps_running) {
1200 /* Stop calibration. */
1201 callout_stop(&sc->sc_calib_to);
1202
1203 /* Stop Rx of data frames. */
1204 rtwn_write_2(sc, R92C_RXFLTMAP2, 0);
1205
1206 /* Stop Rx of control frames. */
1207 rtwn_write_2(sc, R92C_RXFLTMAP1, 0);
1208
1209 /* Reset EDCA parameters. */
1210 rtwn_write_4(sc, R92C_EDCA_VO_PARAM, 0x002f3217);
1211 rtwn_write_4(sc, R92C_EDCA_VI_PARAM, 0x005e4317);
1212 rtwn_write_4(sc, R92C_EDCA_BE_PARAM, 0x00105320);
1213 rtwn_write_4(sc, R92C_EDCA_BK_PARAM, 0x0000a444);
1214
1215 if (sc->vaps_running == 0) {
1216 /* Turn link LED off. */
1217 rtwn_set_led(sc, RTWN_LED_LINK, 0);
1218 }
1219 }
1220 }
1221
1222 error = 0;
1223 switch (nstate) {
1224 case IEEE80211_S_SCAN:
1225 /* Pause AC Tx queues. */
1226 if (sc->vaps_running == 0)
1227 rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_AC);
1228 break;
1229 case IEEE80211_S_RUN:
1230 error = rtwn_run(sc, vap);
1231 if (error != 0) {
1232 device_printf(sc->sc_dev,
1233 "%s: could not move to RUN state\n", __func__);
1234 break;
1235 }
1236
1237 sc->vaps_running++;
1238 break;
1239 case IEEE80211_S_CSA:
1240 /* Block all Tx queues (except beacon queue). */
1241 rtwn_setbits_1(sc, R92C_TXPAUSE, 0,
1242 R92C_TX_QUEUE_AC | R92C_TX_QUEUE_MGT | R92C_TX_QUEUE_HIGH);
1243 break;
1244 default:
1245 break;
1246 }
1247
1248 RTWN_UNLOCK(sc);
1249 IEEE80211_LOCK(ic);
1250 if (error != 0)
1251 return (error);
1252
1253 return (early_newstate ? 0 : uvp->newstate(vap, nstate, arg));
1254 }
1255
1256 static void
rtwn_calc_basicrates(struct rtwn_softc * sc)1257 rtwn_calc_basicrates(struct rtwn_softc *sc)
1258 {
1259 struct ieee80211com *ic = &sc->sc_ic;
1260 uint32_t basicrates;
1261 int i;
1262
1263 RTWN_ASSERT_LOCKED(sc);
1264
1265 if (ic->ic_flags & IEEE80211_F_SCAN)
1266 return; /* will be done by rtwn_scan_end(). */
1267
1268 basicrates = 0;
1269 for (i = 0; i < nitems(sc->vaps); i++) {
1270 struct rtwn_vap *rvp;
1271 struct ieee80211vap *vap;
1272 struct ieee80211_node *ni;
1273 struct ieee80211_htrateset *rs_ht;
1274 uint32_t rates = 0, htrates = 0;
1275
1276 rvp = sc->vaps[i];
1277 if (rvp == NULL || rvp->curr_mode == R92C_MSR_NOLINK)
1278 continue;
1279
1280 vap = &rvp->vap;
1281 if (vap->iv_bss == NULL)
1282 continue;
1283
1284 ni = ieee80211_ref_node(vap->iv_bss);
1285 if (ni->ni_flags & IEEE80211_NODE_HT)
1286 rs_ht = &ni->ni_htrates;
1287 else
1288 rs_ht = NULL;
1289 /*
1290 * Only fetches basic rates; fetch 802.11abg and 11n basic
1291 * rates
1292 */
1293 rtwn_get_rates(sc, &ni->ni_rates, rs_ht, &rates, &htrates,
1294 NULL, 1);
1295
1296 /*
1297 * We need at least /an/ OFDM and/or MCS rate for HT
1298 * operation, or the MAC will generate MCS7 ACK/Block-ACK
1299 * frames and thus performance will suffer.
1300 */
1301 if (ni->ni_flags & IEEE80211_NODE_HT) {
1302 htrates |= 0x01; /* MCS0 */
1303 rates |= (1 << RTWN_RIDX_OFDM6);
1304 }
1305
1306 basicrates |= rates;
1307 basicrates |= (htrates << RTWN_RIDX_HT_MCS_SHIFT);
1308
1309 /* Filter out undesired high rates */
1310 if (ni->ni_chan != IEEE80211_CHAN_ANYC &&
1311 IEEE80211_IS_CHAN_5GHZ(ni->ni_chan))
1312 basicrates &= R92C_RRSR_RATE_MASK_5GHZ;
1313 else
1314 basicrates &= R92C_RRSR_RATE_MASK_2GHZ;
1315
1316 ieee80211_free_node(ni);
1317 }
1318
1319 if (basicrates == 0) {
1320 device_printf(sc->sc_dev,
1321 "WARNING: no configured basic rates!\n");
1322 return;
1323 }
1324
1325 rtwn_set_basicrates(sc, basicrates);
1326 rtwn_set_rts_rate(sc, basicrates);
1327 }
1328
1329 static int
rtwn_run(struct rtwn_softc * sc,struct ieee80211vap * vap)1330 rtwn_run(struct rtwn_softc *sc, struct ieee80211vap *vap)
1331 {
1332 struct ieee80211com *ic = vap->iv_ic;
1333 struct rtwn_vap *uvp = RTWN_VAP(vap);
1334 struct ieee80211_node *ni;
1335 uint8_t mode;
1336 int error;
1337
1338 RTWN_ASSERT_LOCKED(sc);
1339
1340 error = 0;
1341 ni = ieee80211_ref_node(vap->iv_bss);
1342
1343 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1344 ni->ni_chan == IEEE80211_CHAN_ANYC) {
1345 error = EINVAL;
1346 goto fail;
1347 }
1348
1349 switch (vap->iv_opmode) {
1350 case IEEE80211_M_STA:
1351 mode = R92C_MSR_INFRA;
1352 break;
1353 case IEEE80211_M_IBSS:
1354 mode = R92C_MSR_ADHOC;
1355 break;
1356 case IEEE80211_M_HOSTAP:
1357 mode = R92C_MSR_AP;
1358 break;
1359 default:
1360 KASSERT(0, ("undefined opmode %d\n", vap->iv_opmode));
1361 error = EINVAL;
1362 goto fail;
1363 }
1364
1365 /* Set media status to 'Associated'. */
1366 rtwn_set_mode(sc, mode, uvp->id);
1367
1368 /* Set AssocID. */
1369 /* XXX multi-vap? */
1370 rtwn_write_2(sc, R92C_BCN_PSR_RPT,
1371 0xc000 | IEEE80211_NODE_AID(ni));
1372
1373 /* Set BSSID. */
1374 rtwn_set_bssid(sc, ni->ni_bssid, uvp->id);
1375
1376 /* Set beacon interval. */
1377 rtwn_write_2(sc, R92C_BCN_INTERVAL(uvp->id), ni->ni_intval);
1378
1379 if (sc->vaps_running == sc->monvaps_running) {
1380 /* Enable Rx of BAR control frames. */
1381 rtwn_write_2(sc, R92C_RXFLTMAP1,
1382 1 << (IEEE80211_FC0_SUBTYPE_BAR >>
1383 IEEE80211_FC0_SUBTYPE_SHIFT));
1384
1385 /* Enable Rx of data frames. */
1386 rtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff);
1387
1388 /* Flush all AC queues. */
1389 rtwn_write_1(sc, R92C_TXPAUSE, 0);
1390 }
1391
1392 #ifndef RTWN_WITHOUT_UCODE
1393 /* Upload (QoS) Null Data frame to firmware. */
1394 /* Note: do this for port 0 only. */
1395 if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 &&
1396 vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
1397 error = rtwn_tx_fwpkt_check(sc, vap);
1398 if (error != 0)
1399 goto fail;
1400
1401 /* Setup power management. */
1402 /*
1403 * NB: it will be enabled immediately - delay it,
1404 * so 4-Way handshake will not be interrupted.
1405 */
1406 callout_reset(&sc->sc_pwrmode_init, 5*hz,
1407 rtwn_pwrmode_init, sc);
1408 }
1409 #endif
1410
1411 /* Enable TSF synchronization. */
1412 rtwn_tsf_sync_enable(sc, vap);
1413
1414 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1415 vap->iv_opmode == IEEE80211_M_IBSS) {
1416 error = rtwn_setup_beacon(sc, ni);
1417 if (error != 0) {
1418 device_printf(sc->sc_dev,
1419 "unable to push beacon into the chip, "
1420 "error %d\n", error);
1421 goto fail;
1422 }
1423 }
1424
1425 /* Set ACK preamble type. */
1426 rtwn_set_ack_preamble(sc);
1427
1428 /* Set basic rates mask. */
1429 rtwn_calc_basicrates(sc);
1430
1431 #ifdef RTWN_TODO
1432 rtwn_write_1(sc, R92C_SIFS_CCK + 1, 10);
1433 rtwn_write_1(sc, R92C_SIFS_OFDM + 1, 10);
1434 rtwn_write_1(sc, R92C_SPEC_SIFS + 1, 10);
1435 rtwn_write_1(sc, R92C_MAC_SPEC_SIFS + 1, 10);
1436 rtwn_write_1(sc, R92C_R2T_SIFS + 1, 10);
1437 rtwn_write_1(sc, R92C_T2T_SIFS + 1, 10);
1438 #endif
1439
1440 if (sc->vaps_running == sc->monvaps_running) {
1441 /* Reset temperature calibration state machine. */
1442 sc->sc_flags &= ~RTWN_TEMP_MEASURED;
1443 sc->thcal_temp = sc->thermal_meter;
1444
1445 /* Start periodic calibration. */
1446 callout_reset(&sc->sc_calib_to, 2*hz, rtwn_calib_to,
1447 sc);
1448
1449 if (sc->vaps_running == 0) {
1450 /* Turn link LED on. */
1451 rtwn_set_led(sc, RTWN_LED_LINK, 1);
1452 }
1453 }
1454
1455 fail:
1456 ieee80211_free_node(ni);
1457
1458 return (error);
1459 }
1460
1461 #ifndef D4054
1462 static void
rtwn_watchdog(void * arg)1463 rtwn_watchdog(void *arg)
1464 {
1465 struct rtwn_softc *sc = arg;
1466 struct ieee80211com *ic = &sc->sc_ic;
1467
1468 RTWN_ASSERT_LOCKED(sc);
1469
1470 KASSERT(sc->sc_flags & RTWN_RUNNING, ("not running"));
1471
1472 if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) {
1473 ic_printf(ic, "device timeout\n");
1474 ieee80211_restart_all(ic);
1475 return;
1476 }
1477 callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
1478 }
1479 #endif
1480
1481 static void
rtwn_parent(struct ieee80211com * ic)1482 rtwn_parent(struct ieee80211com *ic)
1483 {
1484 struct rtwn_softc *sc = ic->ic_softc;
1485 struct ieee80211vap *vap;
1486
1487 if (ic->ic_nrunning > 0) {
1488 if (rtwn_init(sc) != 0) {
1489 IEEE80211_LOCK(ic);
1490 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
1491 ieee80211_stop_locked(vap);
1492 IEEE80211_UNLOCK(ic);
1493 } else
1494 ieee80211_start_all(ic);
1495 } else
1496 rtwn_stop(sc);
1497 }
1498
1499 static int
rtwn_dma_init(struct rtwn_softc * sc)1500 rtwn_dma_init(struct rtwn_softc *sc)
1501 {
1502 #define RTWN_CHK(res) do { \
1503 if (res != 0) \
1504 return (EIO); \
1505 } while(0)
1506 uint16_t reg;
1507 uint8_t tx_boundary;
1508 int error;
1509
1510 /* Initialize LLT table. */
1511 error = rtwn_llt_init(sc);
1512 if (error != 0)
1513 return (error);
1514
1515 /* Set the number of pages for each queue. */
1516 RTWN_DPRINTF(sc, RTWN_DEBUG_RESET,
1517 "%s: pages per queue: high %d, normal %d, low %d, public %d\n",
1518 __func__, sc->nhqpages, sc->nnqpages, sc->nlqpages,
1519 sc->npubqpages);
1520
1521 RTWN_CHK(rtwn_write_1(sc, R92C_RQPN_NPQ, sc->nnqpages));
1522 RTWN_CHK(rtwn_write_4(sc, R92C_RQPN,
1523 /* Set number of pages for public queue. */
1524 SM(R92C_RQPN_PUBQ, sc->npubqpages) |
1525 /* Set number of pages for high priority queue. */
1526 SM(R92C_RQPN_HPQ, sc->nhqpages) |
1527 /* Set number of pages for low priority queue. */
1528 SM(R92C_RQPN_LPQ, sc->nlqpages) |
1529 /* Load values. */
1530 R92C_RQPN_LD));
1531
1532 /* Initialize TX buffer boundary. */
1533 KASSERT(sc->page_count < 255 && sc->page_count > 0,
1534 ("page_count is %d\n", sc->page_count));
1535 tx_boundary = sc->page_count + 1;
1536 RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_BCNQ_BDNY, tx_boundary));
1537 RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_MGQ_BDNY, tx_boundary));
1538 RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_WMAC_LBK_BF_HD, tx_boundary));
1539 RTWN_CHK(rtwn_write_1(sc, R92C_TRXFF_BNDY, tx_boundary));
1540 RTWN_CHK(rtwn_write_1(sc, R92C_TDECTRL + 1, tx_boundary));
1541
1542 error = rtwn_init_bcnq1_boundary(sc);
1543 if (error != 0)
1544 return (error);
1545
1546 /* Set queue to USB pipe mapping. */
1547 /* Note: PCIe devices are using some magic number here. */
1548 reg = rtwn_get_qmap(sc);
1549 RTWN_CHK(rtwn_setbits_2(sc, R92C_TRXDMA_CTRL,
1550 R92C_TRXDMA_CTRL_QMAP_M, reg));
1551
1552 /* Configure Tx/Rx DMA (PCIe). */
1553 rtwn_set_desc_addr(sc);
1554
1555 /* Set Tx/Rx transfer page boundary. */
1556 RTWN_CHK(rtwn_write_2(sc, R92C_TRXFF_BNDY + 2,
1557 sc->rx_dma_size - 1));
1558
1559 /* Set Tx/Rx transfer page size. */
1560 rtwn_set_page_size(sc);
1561
1562 return (0);
1563 }
1564
1565 static int
rtwn_mac_init(struct rtwn_softc * sc)1566 rtwn_mac_init(struct rtwn_softc *sc)
1567 {
1568 int i, error;
1569
1570 /* Write MAC initialization values. */
1571 for (i = 0; i < sc->mac_size; i++) {
1572 error = rtwn_write_1(sc, sc->mac_prog[i].reg,
1573 sc->mac_prog[i].val);
1574 if (error != 0)
1575 return (error);
1576 }
1577
1578 return (0);
1579 }
1580
1581 static void
rtwn_mrr_init(struct rtwn_softc * sc)1582 rtwn_mrr_init(struct rtwn_softc *sc)
1583 {
1584 int i;
1585
1586 /* Drop rate index by 1 per retry. */
1587 for (i = 0; i < R92C_DARFRC_SIZE; i++) {
1588 rtwn_write_1(sc, R92C_DARFRC + i, i + 1);
1589 rtwn_write_1(sc, R92C_RARFRC + i, i + 1);
1590 }
1591 }
1592
1593 static void
rtwn_scan_start(struct ieee80211com * ic)1594 rtwn_scan_start(struct ieee80211com *ic)
1595 {
1596 struct rtwn_softc *sc = ic->ic_softc;
1597
1598 RTWN_LOCK(sc);
1599 /* Pause beaconing. */
1600 rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_BCN);
1601 /* Receive beacons / probe responses from any BSSID. */
1602 if (sc->bcn_vaps == 0)
1603 rtwn_set_rx_bssid_all(sc, 1);
1604 RTWN_UNLOCK(sc);
1605 }
1606
1607 static void
rtwn_scan_curchan(struct ieee80211_scan_state * ss,unsigned long maxdwell)1608 rtwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
1609 {
1610 struct rtwn_softc *sc = ss->ss_ic->ic_softc;
1611
1612 /* Make link LED blink during scan. */
1613 RTWN_LOCK(sc);
1614 rtwn_set_led(sc, RTWN_LED_LINK, !sc->ledlink);
1615 RTWN_UNLOCK(sc);
1616
1617 sc->sc_scan_curchan(ss, maxdwell);
1618 }
1619
1620 static void
rtwn_scan_end(struct ieee80211com * ic)1621 rtwn_scan_end(struct ieee80211com *ic)
1622 {
1623 struct rtwn_softc *sc = ic->ic_softc;
1624
1625 RTWN_LOCK(sc);
1626 /* Restore limitations. */
1627 if (ic->ic_promisc == 0 && sc->bcn_vaps == 0)
1628 rtwn_set_rx_bssid_all(sc, 0);
1629
1630 /* Restore LED state. */
1631 rtwn_set_led(sc, RTWN_LED_LINK, (sc->vaps_running != 0));
1632
1633 /* Restore basic rates mask. */
1634 rtwn_calc_basicrates(sc);
1635
1636 /* Resume beaconing. */
1637 rtwn_setbits_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_BCN, 0);
1638 RTWN_UNLOCK(sc);
1639 }
1640
1641 static void
rtwn_getradiocaps(struct ieee80211com * ic,int maxchans,int * nchans,struct ieee80211_channel chans[])1642 rtwn_getradiocaps(struct ieee80211com *ic,
1643 int maxchans, int *nchans, struct ieee80211_channel chans[])
1644 {
1645 struct rtwn_softc *sc = ic->ic_softc;
1646 uint8_t bands[IEEE80211_MODE_BYTES];
1647 int cbw_flags, i;
1648
1649 cbw_flags = (ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) ?
1650 NET80211_CBW_FLAG_HT40 : 0;
1651
1652 memset(bands, 0, sizeof(bands));
1653 setbit(bands, IEEE80211_MODE_11B);
1654 setbit(bands, IEEE80211_MODE_11G);
1655 setbit(bands, IEEE80211_MODE_11NG);
1656 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans,
1657 bands, cbw_flags);
1658
1659 /* XXX workaround add_channel_list() limitations */
1660 setbit(bands, IEEE80211_MODE_11A);
1661 setbit(bands, IEEE80211_MODE_11NA);
1662
1663 if (IEEE80211_CONF_VHT(ic)) {
1664 setbit(bands, IEEE80211_MODE_VHT_5GHZ);
1665 /* Only enable VHT80 if HT40/VHT40 is available */
1666 if (sc->sc_ht40)
1667 cbw_flags |= NET80211_CBW_FLAG_VHT80;
1668 }
1669
1670 for (i = 0; i < nitems(sc->chan_num_5ghz); i++) {
1671 if (sc->chan_num_5ghz[i] == 0)
1672 continue;
1673
1674 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
1675 sc->chan_list_5ghz[i], sc->chan_num_5ghz[i], bands,
1676 cbw_flags);
1677 }
1678 }
1679
1680 static void
rtwn_update_chw(struct ieee80211com * ic)1681 rtwn_update_chw(struct ieee80211com *ic)
1682 {
1683 }
1684
1685 static void
rtwn_set_channel(struct ieee80211com * ic)1686 rtwn_set_channel(struct ieee80211com *ic)
1687 {
1688 struct rtwn_softc *sc = ic->ic_softc;
1689 struct ieee80211_channel *c = ic->ic_curchan;
1690
1691 RTWN_LOCK(sc);
1692 rtwn_set_chan(sc, c);
1693 RTWN_UNLOCK(sc);
1694 }
1695
1696 static int
rtwn_wme_update(struct ieee80211com * ic)1697 rtwn_wme_update(struct ieee80211com *ic)
1698 {
1699 struct chanAccParams chp;
1700 struct ieee80211_channel *c = ic->ic_curchan;
1701 struct rtwn_softc *sc = ic->ic_softc;
1702 struct wmeParams *wmep = sc->cap_wmeParams;
1703 uint8_t aifs, acm, slottime;
1704 int ac;
1705
1706 ieee80211_wme_ic_getparams(ic, &chp);
1707
1708 /* Prevent possible races. */
1709 IEEE80211_LOCK(ic); /* XXX */
1710 RTWN_LOCK(sc);
1711 memcpy(wmep, chp.cap_wmeParams, sizeof(sc->cap_wmeParams));
1712 RTWN_UNLOCK(sc);
1713 IEEE80211_UNLOCK(ic);
1714
1715 acm = 0;
1716 slottime = IEEE80211_GET_SLOTTIME(ic);
1717
1718 RTWN_LOCK(sc);
1719 for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) {
1720 /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */
1721 aifs = wmep[ac].wmep_aifsn * slottime +
1722 (IEEE80211_IS_CHAN_5GHZ(c) ?
1723 IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS);
1724 rtwn_write_4(sc, wme2reg[ac],
1725 SM(R92C_EDCA_PARAM_TXOP, wmep[ac].wmep_txopLimit) |
1726 SM(R92C_EDCA_PARAM_ECWMIN, wmep[ac].wmep_logcwmin) |
1727 SM(R92C_EDCA_PARAM_ECWMAX, wmep[ac].wmep_logcwmax) |
1728 SM(R92C_EDCA_PARAM_AIFS, aifs));
1729 if (ac != WME_AC_BE)
1730 acm |= wmep[ac].wmep_acm << ac;
1731 }
1732
1733 if (acm != 0)
1734 acm |= R92C_ACMHWCTRL_EN;
1735 rtwn_setbits_1(sc, R92C_ACMHWCTRL, R92C_ACMHWCTRL_ACM_MASK, acm);
1736 RTWN_UNLOCK(sc);
1737
1738 return 0;
1739 }
1740
1741 static void
rtwn_update_slot(struct ieee80211com * ic)1742 rtwn_update_slot(struct ieee80211com *ic)
1743 {
1744 rtwn_cmd_sleepable(ic->ic_softc, NULL, 0, rtwn_update_slot_cb);
1745 }
1746
1747 static void
rtwn_update_slot_cb(struct rtwn_softc * sc,union sec_param * data)1748 rtwn_update_slot_cb(struct rtwn_softc *sc, union sec_param *data)
1749 {
1750 struct ieee80211com *ic = &sc->sc_ic;
1751 uint8_t slottime;
1752
1753 slottime = IEEE80211_GET_SLOTTIME(ic);
1754
1755 RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s: setting slot time to %uus\n",
1756 __func__, slottime);
1757
1758 rtwn_write_1(sc, R92C_SLOT, slottime);
1759 rtwn_update_aifs(sc, slottime);
1760 }
1761
1762 static void
rtwn_update_aifs(struct rtwn_softc * sc,uint8_t slottime)1763 rtwn_update_aifs(struct rtwn_softc *sc, uint8_t slottime)
1764 {
1765 struct ieee80211_channel *c = sc->sc_ic.ic_curchan;
1766 const struct wmeParams *wmep = sc->cap_wmeParams;
1767 uint8_t aifs, ac;
1768
1769 for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) {
1770 /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */
1771 aifs = wmep[ac].wmep_aifsn * slottime +
1772 (IEEE80211_IS_CHAN_5GHZ(c) ?
1773 IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS);
1774 rtwn_write_1(sc, wme2reg[ac], aifs);
1775 }
1776 }
1777
1778 static void
rtwn_update_promisc(struct ieee80211com * ic)1779 rtwn_update_promisc(struct ieee80211com *ic)
1780 {
1781 struct rtwn_softc *sc = ic->ic_softc;
1782
1783 RTWN_LOCK(sc);
1784 if (sc->sc_flags & RTWN_RUNNING)
1785 rtwn_set_promisc(sc);
1786 RTWN_UNLOCK(sc);
1787 }
1788
1789 static void
rtwn_update_mcast(struct ieee80211com * ic)1790 rtwn_update_mcast(struct ieee80211com *ic)
1791 {
1792 struct rtwn_softc *sc = ic->ic_softc;
1793
1794 RTWN_LOCK(sc);
1795 if (sc->sc_flags & RTWN_RUNNING)
1796 rtwn_set_multi(sc);
1797 RTWN_UNLOCK(sc);
1798 }
1799
1800 static int
rtwn_set_bssid(struct rtwn_softc * sc,const uint8_t * bssid,int id)1801 rtwn_set_bssid(struct rtwn_softc *sc, const uint8_t *bssid, int id)
1802 {
1803 int error;
1804
1805 error = rtwn_write_4(sc, R92C_BSSID(id), le32dec(&bssid[0]));
1806 if (error != 0)
1807 return (error);
1808 error = rtwn_write_2(sc, R92C_BSSID(id) + 4, le16dec(&bssid[4]));
1809
1810 return (error);
1811 }
1812
1813 static int
rtwn_set_macaddr(struct rtwn_softc * sc,const uint8_t * addr,int id)1814 rtwn_set_macaddr(struct rtwn_softc *sc, const uint8_t *addr, int id)
1815 {
1816 int error;
1817
1818 error = rtwn_write_4(sc, R92C_MACID(id), le32dec(&addr[0]));
1819 if (error != 0)
1820 return (error);
1821 error = rtwn_write_2(sc, R92C_MACID(id) + 4, le16dec(&addr[4]));
1822
1823 return (error);
1824 }
1825
1826 static struct ieee80211_node *
rtwn_node_alloc(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN])1827 rtwn_node_alloc(struct ieee80211vap *vap,
1828 const uint8_t mac[IEEE80211_ADDR_LEN])
1829 {
1830 struct rtwn_node *un;
1831
1832 un = malloc(sizeof (struct rtwn_node), M_80211_NODE,
1833 M_NOWAIT | M_ZERO);
1834
1835 if (un == NULL)
1836 return NULL;
1837
1838 un->id = RTWN_MACID_UNDEFINED;
1839 un->avg_pwdb = -1;
1840
1841 return &un->ni;
1842 }
1843
1844 static void
rtwn_newassoc(struct ieee80211_node * ni,int isnew __unused)1845 rtwn_newassoc(struct ieee80211_node *ni, int isnew __unused)
1846 {
1847 struct rtwn_softc *sc = ni->ni_ic->ic_softc;
1848 struct rtwn_node *un = RTWN_NODE(ni);
1849 int id;
1850
1851 if (un->id != RTWN_MACID_UNDEFINED)
1852 return;
1853
1854 RTWN_NT_LOCK(sc);
1855 for (id = 0; id <= sc->macid_limit; id++) {
1856 if (id != RTWN_MACID_BC && sc->node_list[id] == NULL) {
1857 un->id = id;
1858 sc->node_list[id] = ni;
1859 break;
1860 }
1861 }
1862 RTWN_NT_UNLOCK(sc);
1863
1864 if (id > sc->macid_limit) {
1865 device_printf(sc->sc_dev, "%s: node table is full\n",
1866 __func__);
1867 return;
1868 }
1869
1870 /* Notify firmware. */
1871 id |= RTWN_MACID_VALID;
1872 rtwn_cmd_sleepable(sc, &id, sizeof(id), rtwn_set_media_status);
1873 }
1874
1875 static void
rtwn_node_free(struct ieee80211_node * ni)1876 rtwn_node_free(struct ieee80211_node *ni)
1877 {
1878 struct rtwn_softc *sc = ni->ni_ic->ic_softc;
1879 struct rtwn_node *un = RTWN_NODE(ni);
1880
1881 RTWN_NT_LOCK(sc);
1882 if (un->id != RTWN_MACID_UNDEFINED) {
1883 sc->node_list[un->id] = NULL;
1884 rtwn_cmd_sleepable(sc, &un->id, sizeof(un->id),
1885 rtwn_set_media_status);
1886 }
1887 RTWN_NT_UNLOCK(sc);
1888
1889 sc->sc_node_free(ni);
1890 }
1891
1892 static void
rtwn_init_beacon_reg(struct rtwn_softc * sc)1893 rtwn_init_beacon_reg(struct rtwn_softc *sc)
1894 {
1895 rtwn_write_1(sc, R92C_BCN_CTRL(0), R92C_BCN_CTRL_DIS_TSF_UDT0);
1896 rtwn_write_1(sc, R92C_BCN_CTRL(1), R92C_BCN_CTRL_DIS_TSF_UDT0);
1897 rtwn_write_2(sc, R92C_TBTT_PROHIBIT, 0x6404);
1898 rtwn_write_1(sc, R92C_DRVERLYINT, 0x05);
1899 rtwn_write_1(sc, R92C_BCNDMATIM, 0x02);
1900 rtwn_write_2(sc, R92C_BCNTCFG, 0x660f);
1901 }
1902
1903 static int
rtwn_init(struct rtwn_softc * sc)1904 rtwn_init(struct rtwn_softc *sc)
1905 {
1906 struct ieee80211com *ic = &sc->sc_ic;
1907 int i, error;
1908
1909 RTWN_LOCK(sc);
1910 if (sc->sc_flags & RTWN_RUNNING) {
1911 RTWN_UNLOCK(sc);
1912 return (0);
1913 }
1914 sc->sc_flags |= RTWN_STARTED;
1915
1916 /* Power on adapter. */
1917 error = rtwn_power_on(sc);
1918 if (error != 0)
1919 goto fail;
1920
1921 #ifndef RTWN_WITHOUT_UCODE
1922 /* Load 8051 microcode. */
1923 error = rtwn_load_firmware(sc);
1924 if (error == 0)
1925 sc->sc_flags |= RTWN_FW_LOADED;
1926
1927 /* Init firmware commands ring. */
1928 sc->fwcur = 0;
1929 #endif
1930
1931 /* Initialize MAC block. */
1932 error = rtwn_mac_init(sc);
1933 if (error != 0) {
1934 device_printf(sc->sc_dev,
1935 "%s: error while initializing MAC block\n", __func__);
1936 goto fail;
1937 }
1938
1939 /* Initialize DMA. */
1940 error = rtwn_dma_init(sc);
1941 if (error != 0)
1942 goto fail;
1943
1944 /* Drop incorrect TX (USB). */
1945 rtwn_drop_incorrect_tx(sc);
1946
1947 /* Set info size in Rx descriptors (in 64-bit words). */
1948 rtwn_write_1(sc, R92C_RX_DRVINFO_SZ, R92C_RX_DRVINFO_SZ_DEF);
1949
1950 /* Init interrupts. */
1951 rtwn_init_intr(sc);
1952
1953 for (i = 0; i < nitems(sc->vaps); i++) {
1954 struct rtwn_vap *uvp = sc->vaps[i];
1955
1956 /* Set initial network type. */
1957 rtwn_set_mode(sc, R92C_MSR_NOLINK, i);
1958
1959 if (uvp == NULL)
1960 continue;
1961
1962 /* Set MAC address. */
1963 error = rtwn_set_macaddr(sc, uvp->vap.iv_myaddr, uvp->id);
1964 if (error != 0)
1965 goto fail;
1966 }
1967
1968 /* Initialize Rx filter. */
1969 rtwn_rxfilter_init(sc);
1970
1971 /* Set short/long retry limits. */
1972 rtwn_write_2(sc, R92C_RL,
1973 SM(R92C_RL_SRL, 0x30) | SM(R92C_RL_LRL, 0x30));
1974
1975 /* Initialize EDCA parameters. */
1976 rtwn_init_edca(sc);
1977
1978 rtwn_setbits_1(sc, R92C_FWHW_TXQ_CTRL, 0,
1979 R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW);
1980 /* Set ACK timeout. */
1981 rtwn_write_1(sc, R92C_ACKTO, sc->ackto);
1982
1983 /* Setup aggregation. */
1984 /* Tx aggregation. */
1985 rtwn_init_tx_agg(sc);
1986 rtwn_init_rx_agg(sc);
1987
1988 /* Initialize beacon parameters. */
1989 rtwn_init_beacon_reg(sc);
1990
1991 /* Init A-MPDU parameters. */
1992 rtwn_init_ampdu(sc);
1993
1994 /* Init MACTXEN / MACRXEN after setting RxFF boundary. */
1995 rtwn_setbits_1(sc, R92C_CR, 0, R92C_CR_MACTXEN | R92C_CR_MACRXEN);
1996
1997 /* Initialize BB/RF blocks. */
1998 rtwn_init_bb(sc);
1999 rtwn_init_rf(sc);
2000
2001 /* Initialize wireless band. */
2002 rtwn_set_chan(sc, ic->ic_curchan);
2003
2004 /* Clear per-station keys table. */
2005 rtwn_init_cam(sc);
2006
2007 /* Enable decryption / encryption. */
2008 rtwn_init_seccfg(sc);
2009
2010 /* Install static keys (if any). */
2011 for (i = 0; i < nitems(sc->vaps); i++) {
2012 if (sc->vaps[i] != NULL) {
2013 error = rtwn_init_static_keys(sc, sc->vaps[i]);
2014 if (error != 0)
2015 goto fail;
2016 }
2017 }
2018
2019 /* Initialize antenna selection. */
2020 rtwn_init_antsel(sc);
2021
2022 /* Enable hardware sequence numbering. */
2023 rtwn_write_1(sc, R92C_HWSEQ_CTRL, R92C_TX_QUEUE_ALL);
2024
2025 /* Disable BAR. */
2026 rtwn_write_4(sc, R92C_BAR_MODE_CTRL, 0x0201ffff);
2027
2028 /* NAV limit. */
2029 rtwn_write_1(sc, R92C_NAV_UPPER, 0);
2030
2031 /* Initialize GPIO setting. */
2032 rtwn_setbits_1(sc, R92C_GPIO_MUXCFG, R92C_GPIO_MUXCFG_ENBT, 0);
2033
2034 /* Initialize MRR. */
2035 rtwn_mrr_init(sc);
2036
2037 /* Device-specific post initialization. */
2038 rtwn_post_init(sc);
2039
2040 rtwn_start_xfers(sc);
2041
2042 #ifndef D4054
2043 callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
2044 #endif
2045
2046 sc->sc_flags |= RTWN_RUNNING;
2047 fail:
2048 RTWN_UNLOCK(sc);
2049
2050 return (error);
2051 }
2052
2053 static void
rtwn_stop(struct rtwn_softc * sc)2054 rtwn_stop(struct rtwn_softc *sc)
2055 {
2056
2057 RTWN_LOCK(sc);
2058 if (!(sc->sc_flags & RTWN_STARTED)) {
2059 RTWN_UNLOCK(sc);
2060 return;
2061 }
2062
2063 #ifndef D4054
2064 callout_stop(&sc->sc_watchdog_to);
2065 sc->sc_tx_timer = 0;
2066 #endif
2067 sc->sc_flags &= ~(RTWN_STARTED | RTWN_RUNNING | RTWN_FW_LOADED);
2068 sc->sc_flags &= ~RTWN_TEMP_MEASURED;
2069 sc->fwver = 0;
2070 sc->thcal_temp = 0;
2071 sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
2072 bzero(&sc->last_physt, sizeof(sc->last_physt));
2073
2074 #ifdef D4054
2075 ieee80211_tx_watchdog_stop(&sc->sc_ic);
2076 #endif
2077
2078 rtwn_abort_xfers(sc);
2079 rtwn_drain_mbufq(sc);
2080 rtwn_power_off(sc);
2081 rtwn_reset_lists(sc, NULL);
2082 RTWN_UNLOCK(sc);
2083 }
2084
2085 MODULE_VERSION(rtwn, 2);
2086 MODULE_DEPEND(rtwn, wlan, 1, 1, 1);
2087 #ifndef RTWN_WITHOUT_UCODE
2088 MODULE_DEPEND(rtwn, firmware, 1, 1, 1);
2089 #endif
2090