1 /* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
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>
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.
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.
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
25 * Driver for Realtek RTL8188CE-VAU/RTL8188CUS/RTL8188EU/RTL8188RU/RTL8192CU/RTL8812AU/RTL8821AU.
29 #include <sys/param.h>
30 #include <sys/sockio.h>
31 #include <sys/sysctl.h>
33 #include <sys/mutex.h>
35 #include <sys/kernel.h>
36 #include <sys/socket.h>
37 #include <sys/systm.h>
38 #include <sys/malloc.h>
39 #include <sys/module.h>
41 #include <sys/endian.h>
42 #include <sys/linker.h>
43 #include <sys/firmware.h>
48 #include <net/if_var.h>
49 #include <net/if_arp.h>
50 #include <net/ethernet.h>
51 #include <net/if_dl.h>
52 #include <net/if_media.h>
53 #include <net/if_types.h>
55 #include <netinet/in.h>
56 #include <netinet/in_systm.h>
57 #include <netinet/in_var.h>
58 #include <netinet/if_ether.h>
59 #include <netinet/ip.h>
61 #include <net80211/ieee80211_var.h>
62 #include <net80211/ieee80211_regdomain.h>
63 #include <net80211/ieee80211_radiotap.h>
64 #include <net80211/ieee80211_ratectl.h>
66 #include <dev/rtwn/if_rtwnreg.h>
67 #include <dev/rtwn/if_rtwnvar.h>
69 #include <dev/rtwn/if_rtwn_beacon.h>
70 #include <dev/rtwn/if_rtwn_calib.h>
71 #include <dev/rtwn/if_rtwn_cam.h>
72 #include <dev/rtwn/if_rtwn_debug.h>
73 #include <dev/rtwn/if_rtwn_efuse.h>
74 #include <dev/rtwn/if_rtwn_fw.h>
75 #include <dev/rtwn/if_rtwn_ridx.h>
76 #include <dev/rtwn/if_rtwn_rx.h>
77 #include <dev/rtwn/if_rtwn_task.h>
78 #include <dev/rtwn/if_rtwn_tx.h>
80 #include <dev/rtwn/rtl8192c/r92c_reg.h>
83 static void rtwn_radiotap_attach(struct rtwn_softc *);
84 static void rtwn_vap_decrement_counters(struct rtwn_softc *,
85 enum ieee80211_opmode, int);
86 static void rtwn_set_ic_opmode(struct rtwn_softc *);
87 static struct ieee80211vap *rtwn_vap_create(struct ieee80211com *,
88 const char [IFNAMSIZ], int, enum ieee80211_opmode,
89 int, const uint8_t [IEEE80211_ADDR_LEN],
90 const uint8_t [IEEE80211_ADDR_LEN]);
91 static void rtwn_vap_delete(struct ieee80211vap *);
92 static int rtwn_read_chipid(struct rtwn_softc *);
93 static int rtwn_ioctl_reset(struct ieee80211vap *, u_long);
94 #ifndef RTWN_WITHOUT_UCODE
95 static void rtwn_set_media_status(struct rtwn_softc *,
97 static int rtwn_tx_fwpkt_check(struct rtwn_softc *,
98 struct ieee80211vap *);
99 static int rtwn_construct_nulldata(struct rtwn_softc *,
100 struct ieee80211vap *, uint8_t *, int);
101 static int rtwn_push_nulldata(struct rtwn_softc *,
102 struct ieee80211vap *);
103 static void rtwn_pwrmode_init(void *);
104 static void rtwn_set_pwrmode_cb(struct rtwn_softc *,
107 static void rtwn_tsf_sync_adhoc(void *);
108 static void rtwn_tsf_sync_adhoc_task(void *, int);
109 static void rtwn_tsf_sync_enable(struct rtwn_softc *,
110 struct ieee80211vap *);
111 static void rtwn_set_ack_preamble(struct rtwn_softc *);
112 static void rtwn_set_mode(struct rtwn_softc *, uint8_t, int);
113 static int rtwn_monitor_newstate(struct ieee80211vap *,
114 enum ieee80211_state, int);
115 static int rtwn_newstate(struct ieee80211vap *,
116 enum ieee80211_state, int);
117 static void rtwn_calc_basicrates(struct rtwn_softc *);
118 static int rtwn_run(struct rtwn_softc *,
119 struct ieee80211vap *);
121 static void rtwn_watchdog(void *);
123 static void rtwn_parent(struct ieee80211com *);
124 static int rtwn_llt_write(struct rtwn_softc *, uint32_t,
126 static int rtwn_llt_init(struct rtwn_softc *);
127 static int rtwn_dma_init(struct rtwn_softc *);
128 static int rtwn_mac_init(struct rtwn_softc *);
129 static void rtwn_mrr_init(struct rtwn_softc *);
130 static void rtwn_scan_start(struct ieee80211com *);
131 static void rtwn_scan_curchan(struct ieee80211_scan_state *,
133 static void rtwn_scan_end(struct ieee80211com *);
134 static void rtwn_getradiocaps(struct ieee80211com *, int, int *,
135 struct ieee80211_channel[]);
136 static void rtwn_update_chw(struct ieee80211com *);
137 static void rtwn_set_channel(struct ieee80211com *);
138 static int rtwn_wme_update(struct ieee80211com *);
139 static void rtwn_update_slot(struct ieee80211com *);
140 static void rtwn_update_slot_cb(struct rtwn_softc *,
142 static void rtwn_update_aifs(struct rtwn_softc *, uint8_t);
143 static void rtwn_update_promisc(struct ieee80211com *);
144 static void rtwn_update_mcast(struct ieee80211com *);
145 static int rtwn_set_bssid(struct rtwn_softc *,
146 const uint8_t *, int);
147 static int rtwn_set_macaddr(struct rtwn_softc *,
148 const uint8_t *, int);
149 static struct ieee80211_node *rtwn_node_alloc(struct ieee80211vap *,
150 const uint8_t mac[IEEE80211_ADDR_LEN]);
151 static void rtwn_newassoc(struct ieee80211_node *, int);
152 static void rtwn_node_free(struct ieee80211_node *);
153 static void rtwn_init_beacon_reg(struct rtwn_softc *);
154 static int rtwn_init(struct rtwn_softc *);
155 static void rtwn_stop(struct rtwn_softc *);
157 MALLOC_DEFINE(M_RTWN_PRIV, "rtwn_priv", "rtwn driver private state");
159 static const uint8_t rtwn_chan_2ghz[] =
160 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
162 static const uint16_t wme2reg[] =
163 { R92C_EDCA_BE_PARAM, R92C_EDCA_BK_PARAM,
164 R92C_EDCA_VI_PARAM, R92C_EDCA_VO_PARAM };
167 rtwn_attach(struct rtwn_softc *sc)
169 struct ieee80211com *ic = &sc->sc_ic;
172 sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
174 RTWN_NT_LOCK_INIT(sc);
177 callout_init_mtx(&sc->sc_watchdog_to, &sc->sc_mtx, 0);
179 callout_init(&sc->sc_calib_to, 0);
180 callout_init(&sc->sc_pwrmode_init, 0);
181 mbufq_init(&sc->sc_snd, ifqmaxlen);
184 error = rtwn_read_chipid(sc);
187 device_printf(sc->sc_dev, "unsupported test chip\n");
191 error = rtwn_read_rom(sc);
193 device_printf(sc->sc_dev, "%s: cannot read rom, error %d\n",
198 if (sc->macid_limit > RTWN_MACID_LIMIT) {
199 device_printf(sc->sc_dev,
200 "macid limit will be reduced from %d to %d\n",
201 sc->macid_limit, RTWN_MACID_LIMIT);
202 sc->macid_limit = RTWN_MACID_LIMIT;
204 if (sc->cam_entry_limit > RTWN_CAM_ENTRY_LIMIT) {
205 device_printf(sc->sc_dev,
206 "cam entry limit will be reduced from %d to %d\n",
207 sc->cam_entry_limit, RTWN_CAM_ENTRY_LIMIT);
208 sc->cam_entry_limit = RTWN_CAM_ENTRY_LIMIT;
210 if (sc->txdesc_len > RTWN_TX_DESC_SIZE) {
211 device_printf(sc->sc_dev,
212 "adjust size for Tx descriptor (current %d, needed %d)\n",
213 RTWN_TX_DESC_SIZE, sc->txdesc_len);
217 device_printf(sc->sc_dev, "MAC/BB %s, RF 6052 %dT%dR\n",
218 sc->name, sc->ntxchains, sc->nrxchains);
221 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
222 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
224 /* set device capabilities */
226 IEEE80211_C_STA /* station mode */
227 | IEEE80211_C_MONITOR /* monitor mode */
228 | IEEE80211_C_IBSS /* adhoc mode */
229 | IEEE80211_C_HOSTAP /* hostap mode */
230 #if 0 /* TODO: HRPWM register setup */
231 #ifndef RTWN_WITHOUT_UCODE
232 | IEEE80211_C_PMGT /* Station-side power mgmt */
235 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
236 | IEEE80211_C_SHSLOT /* short slot time supported */
238 | IEEE80211_C_BGSCAN /* capable of bg scanning */
240 | IEEE80211_C_WPA /* 802.11i */
241 | IEEE80211_C_WME /* 802.11e */
242 | IEEE80211_C_SWAMSDUTX /* Do software A-MSDU TX */
243 | IEEE80211_C_FF /* Atheros fast-frames */
246 if (sc->sc_hwcrypto != RTWN_CRYPTO_SW) {
248 IEEE80211_CRYPTO_WEP |
249 IEEE80211_CRYPTO_TKIP |
250 IEEE80211_CRYPTO_AES_CCM;
254 IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
255 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
256 | IEEE80211_HTCAP_SMPS_OFF /* SM PS mode disabled */
257 /* s/w capabilities */
258 | IEEE80211_HTC_HT /* HT operation */
259 | IEEE80211_HTC_AMPDU /* A-MPDU tx */
260 | IEEE80211_HTC_AMSDU /* A-MSDU tx */
265 IEEE80211_HTCAP_CHWIDTH40 /* 40 MHz channel width */
266 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
270 ic->ic_txstream = sc->ntxchains;
271 ic->ic_rxstream = sc->nrxchains;
273 /* Enable TX watchdog */
275 ic->ic_flags_ext |= IEEE80211_FEXT_WATCHDOG;
278 /* Adjust capabilities. */
279 rtwn_adj_devcaps(sc);
281 rtwn_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
284 /* XXX TODO: setup regdomain if R92C_CHANNEL_PLAN_BY_HW bit is set. */
286 ieee80211_ifattach(ic);
287 ic->ic_raw_xmit = rtwn_raw_xmit;
288 ic->ic_scan_start = rtwn_scan_start;
289 sc->sc_scan_curchan = ic->ic_scan_curchan;
290 ic->ic_scan_curchan = rtwn_scan_curchan;
291 ic->ic_scan_end = rtwn_scan_end;
292 ic->ic_getradiocaps = rtwn_getradiocaps;
293 ic->ic_update_chw = rtwn_update_chw;
294 ic->ic_set_channel = rtwn_set_channel;
295 ic->ic_transmit = rtwn_transmit;
296 ic->ic_parent = rtwn_parent;
297 ic->ic_vap_create = rtwn_vap_create;
298 ic->ic_vap_delete = rtwn_vap_delete;
299 ic->ic_wme.wme_update = rtwn_wme_update;
300 ic->ic_updateslot = rtwn_update_slot;
301 ic->ic_update_promisc = rtwn_update_promisc;
302 ic->ic_update_mcast = rtwn_update_mcast;
303 ic->ic_node_alloc = rtwn_node_alloc;
304 ic->ic_newassoc = rtwn_newassoc;
305 sc->sc_node_free = ic->ic_node_free;
306 ic->ic_node_free = rtwn_node_free;
309 rtwn_radiotap_attach(sc);
312 ieee80211_announce(ic);
317 return (ENXIO); /* failure */
321 rtwn_radiotap_attach(struct rtwn_softc *sc)
323 struct rtwn_rx_radiotap_header *rxtap = &sc->sc_rxtap;
324 struct rtwn_tx_radiotap_header *txtap = &sc->sc_txtap;
326 ieee80211_radiotap_attach(&sc->sc_ic,
327 &txtap->wt_ihdr, sizeof(*txtap), RTWN_TX_RADIOTAP_PRESENT,
328 &rxtap->wr_ihdr, sizeof(*rxtap), RTWN_RX_RADIOTAP_PRESENT);
332 rtwn_sysctlattach(struct rtwn_softc *sc)
334 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
335 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
339 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
340 "ht40", CTLFLAG_RDTUN, &sc->sc_ht40,
341 sc->sc_ht40, "Enable 40 MHz mode support");
345 SYSCTL_ADD_U32(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
346 "debug", CTLFLAG_RWTUN, &sc->sc_debug, sc->sc_debug,
347 "Control debugging printfs");
350 sc->sc_hwcrypto = RTWN_CRYPTO_PAIR;
351 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
352 "hwcrypto", CTLFLAG_RDTUN, &sc->sc_hwcrypto,
353 sc->sc_hwcrypto, "Enable h/w crypto: "
354 "0 - disable, 1 - pairwise keys, 2 - all keys");
355 if (sc->sc_hwcrypto >= RTWN_CRYPTO_MAX)
356 sc->sc_hwcrypto = RTWN_CRYPTO_FULL;
358 sc->sc_ratectl_sysctl = RTWN_RATECTL_NET80211;
359 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
360 "ratectl", CTLFLAG_RDTUN, &sc->sc_ratectl_sysctl,
361 sc->sc_ratectl_sysctl, "Select rate control mechanism: "
362 "0 - disabled, 1 - via net80211, 2 - via firmware");
363 if (sc->sc_ratectl_sysctl >= RTWN_RATECTL_MAX)
364 sc->sc_ratectl_sysctl = RTWN_RATECTL_FW;
366 sc->sc_ratectl = sc->sc_ratectl_sysctl;
367 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
368 "ratectl_selected", CTLFLAG_RD, &sc->sc_ratectl,
370 "Currently selected rate control mechanism (by the driver)");
374 rtwn_detach(struct rtwn_softc *sc)
376 struct ieee80211com *ic = &sc->sc_ic;
378 if (ic->ic_softc == sc) {
379 /* Stop command queue. */
382 RTWN_CMDQ_UNLOCK(sc);
384 ieee80211_draintask(ic, &sc->cmdq_task);
385 ieee80211_ifdetach(ic);
388 rtwn_cmdq_destroy(sc);
389 if (RTWN_NT_LOCK_INITIALIZED(sc))
390 RTWN_NT_LOCK_DESTROY(sc);
394 rtwn_suspend(struct rtwn_softc *sc)
396 struct ieee80211com *ic = &sc->sc_ic;
398 ieee80211_suspend_all(ic);
402 rtwn_resume(struct rtwn_softc *sc)
404 struct ieee80211com *ic = &sc->sc_ic;
406 ieee80211_resume_all(ic);
410 rtwn_vap_decrement_counters(struct rtwn_softc *sc,
411 enum ieee80211_opmode opmode, int id)
414 RTWN_ASSERT_LOCKED(sc);
416 if (id != RTWN_VAP_ID_INVALID) {
417 KASSERT(id == 0 || id == 1, ("wrong vap id %d!\n", id));
418 KASSERT(sc->vaps[id] != NULL, ("vap pointer is NULL\n"));
423 case IEEE80211_M_HOSTAP:
426 case IEEE80211_M_IBSS:
429 case IEEE80211_M_STA:
432 case IEEE80211_M_MONITOR:
436 KASSERT(0, ("wrong opmode %d\n", opmode));
440 KASSERT(sc->vaps_running >= 0 && sc->monvaps_running >= 0,
441 ("number of running vaps is negative (vaps %d, monvaps %d)\n",
442 sc->vaps_running, sc->monvaps_running));
443 KASSERT(sc->vaps_running - sc->monvaps_running <= RTWN_PORT_COUNT,
444 ("number of running vaps is too big (vaps %d, monvaps %d)\n",
445 sc->vaps_running, sc->monvaps_running));
447 KASSERT(sc->nvaps >= 0 && sc->nvaps <= RTWN_PORT_COUNT,
448 ("wrong value %d for nvaps\n", sc->nvaps));
449 KASSERT(sc->mon_vaps >= 0, ("mon_vaps is negative (%d)\n",
451 KASSERT(sc->bcn_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) &&
452 sc->bcn_vaps <= RTWN_PORT_COUNT) || sc->bcn_vaps <= 1),
453 ("bcn_vaps value %d is wrong\n", sc->bcn_vaps));
454 KASSERT(sc->ap_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) &&
455 sc->ap_vaps <= RTWN_PORT_COUNT) || sc->ap_vaps <= 1),
456 ("ap_vaps value %d is wrong\n", sc->ap_vaps));
460 rtwn_set_ic_opmode(struct rtwn_softc *sc)
462 struct ieee80211com *ic = &sc->sc_ic;
464 RTWN_ASSERT_LOCKED(sc);
466 /* for ieee80211_reset_erp() */
467 if (sc->bcn_vaps - sc->ap_vaps > 0)
468 ic->ic_opmode = IEEE80211_M_IBSS;
469 else if (sc->ap_vaps > 0)
470 ic->ic_opmode = IEEE80211_M_HOSTAP;
471 else if (sc->nvaps > 0)
472 ic->ic_opmode = IEEE80211_M_STA;
474 ic->ic_opmode = IEEE80211_M_MONITOR;
477 static struct ieee80211vap *
478 rtwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
479 enum ieee80211_opmode opmode, int flags,
480 const uint8_t bssid[IEEE80211_ADDR_LEN],
481 const uint8_t mac[IEEE80211_ADDR_LEN])
483 struct rtwn_softc *sc = ic->ic_softc;
484 struct rtwn_vap *uvp;
485 struct ieee80211vap *vap;
486 int id = RTWN_VAP_ID_INVALID;
489 KASSERT(sc->nvaps <= RTWN_PORT_COUNT,
490 ("nvaps overflow (%d > %d)\n", sc->nvaps, RTWN_PORT_COUNT));
491 KASSERT(sc->ap_vaps <= RTWN_PORT_COUNT,
492 ("ap_vaps overflow (%d > %d)\n", sc->ap_vaps, RTWN_PORT_COUNT));
493 KASSERT(sc->bcn_vaps <= RTWN_PORT_COUNT,
494 ("bcn_vaps overflow (%d > %d)\n", sc->bcn_vaps, RTWN_PORT_COUNT));
496 if (opmode != IEEE80211_M_MONITOR) {
502 if (sc->vaps[1] == NULL)
504 else if (sc->vaps[0] == NULL)
506 KASSERT(id != RTWN_VAP_ID_INVALID,
507 ("no free ports left\n"));
514 if (opmode == IEEE80211_M_IBSS ||
515 opmode == IEEE80211_M_HOSTAP) {
516 if ((sc->bcn_vaps == 1 && !RTWN_CHIP_HAS_BCNQ1(sc)) ||
517 sc->bcn_vaps == RTWN_PORT_COUNT)
523 case IEEE80211_M_HOSTAP:
526 case IEEE80211_M_IBSS:
529 case IEEE80211_M_STA:
532 case IEEE80211_M_MONITOR:
536 KASSERT(0, ("unknown opmode %d\n", opmode));
541 uvp = malloc(sizeof(struct rtwn_vap), M_80211_VAP, M_WAITOK | M_ZERO);
543 if (id != RTWN_VAP_ID_INVALID) {
549 /* enable s/w bmiss handling for sta mode */
551 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
552 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
554 free(uvp, M_80211_VAP);
557 rtwn_vap_decrement_counters(sc, opmode, id);
563 rtwn_beacon_init(sc, &uvp->bcn_desc.txd[0], uvp->id);
564 rtwn_vap_preattach(sc, vap);
566 /* override state transition machine */
567 uvp->newstate = vap->iv_newstate;
568 if (opmode == IEEE80211_M_MONITOR)
569 vap->iv_newstate = rtwn_monitor_newstate;
571 vap->iv_newstate = rtwn_newstate;
572 vap->iv_update_beacon = rtwn_update_beacon;
573 vap->iv_reset = rtwn_ioctl_reset;
574 vap->iv_key_alloc = rtwn_key_alloc;
575 vap->iv_key_set = rtwn_key_set;
576 vap->iv_key_delete = rtwn_key_delete;
577 vap->iv_max_aid = sc->macid_limit;
579 /* 802.11n parameters */
580 vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16;
581 vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K;
583 if (opmode == IEEE80211_M_IBSS) {
584 uvp->recv_mgmt = vap->iv_recv_mgmt;
585 vap->iv_recv_mgmt = rtwn_adhoc_recv_mgmt;
586 TASK_INIT(&uvp->tsf_sync_adhoc_task, 0,
587 rtwn_tsf_sync_adhoc_task, vap);
588 callout_init(&uvp->tsf_sync_adhoc, 0);
592 * NB: driver can select net80211 RA even when user requests
595 ieee80211_ratectl_init(vap);
598 ieee80211_vap_attach(vap, ieee80211_media_change,
599 ieee80211_media_status, mac);
602 rtwn_set_ic_opmode(sc);
603 if (sc->sc_flags & RTWN_RUNNING) {
604 if (uvp->id != RTWN_VAP_ID_INVALID)
605 rtwn_set_macaddr(sc, vap->iv_myaddr, uvp->id);
607 rtwn_rxfilter_update(sc);
619 rtwn_vap_delete(struct ieee80211vap *vap)
621 struct ieee80211com *ic = vap->iv_ic;
622 struct rtwn_softc *sc = ic->ic_softc;
623 struct rtwn_vap *uvp = RTWN_VAP(vap);
625 /* Put vap into INIT state + stop device if needed. */
627 ieee80211_draintask(ic, &vap->iv_nstate_task);
628 ieee80211_draintask(ic, &ic->ic_parent_task);
631 /* Cancel any unfinished Tx. */
632 rtwn_reset_lists(sc, vap);
633 if (uvp->bcn_mbuf != NULL)
634 m_freem(uvp->bcn_mbuf);
635 rtwn_vap_decrement_counters(sc, vap->iv_opmode, uvp->id);
636 rtwn_set_ic_opmode(sc);
637 if (sc->sc_flags & RTWN_RUNNING)
638 rtwn_rxfilter_update(sc);
641 if (vap->iv_opmode == IEEE80211_M_IBSS) {
642 ieee80211_draintask(ic, &uvp->tsf_sync_adhoc_task);
643 callout_drain(&uvp->tsf_sync_adhoc);
646 ieee80211_ratectl_deinit(vap);
647 ieee80211_vap_detach(vap);
648 free(uvp, M_80211_VAP);
652 rtwn_read_chipid(struct rtwn_softc *sc)
656 reg = rtwn_read_4(sc, R92C_SYS_CFG);
657 if (reg & R92C_SYS_CFG_TRP_VAUX_EN) /* test chip */
660 rtwn_read_chipid_vendor(sc, reg);
666 rtwn_ioctl_reset(struct ieee80211vap *vap, u_long cmd)
671 #ifndef RTWN_WITHOUT_UCODE
672 case IEEE80211_IOC_POWERSAVE:
673 case IEEE80211_IOC_POWERSAVESLEEP:
675 struct rtwn_softc *sc = vap->iv_ic->ic_softc;
676 struct rtwn_vap *uvp = RTWN_VAP(vap);
678 if (vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
680 if (sc->sc_flags & RTWN_RUNNING)
681 error = rtwn_set_pwrmode(sc, vap, 1);
692 case IEEE80211_IOC_SHORTGI:
693 case IEEE80211_IOC_RTSTHRESHOLD:
694 case IEEE80211_IOC_PROTMODE:
695 case IEEE80211_IOC_HTPROTMODE:
706 #ifndef RTWN_WITHOUT_UCODE
708 rtwn_set_media_status(struct rtwn_softc *sc, union sec_param *data)
710 sc->sc_set_media_status(sc, data->macid);
714 rtwn_tx_fwpkt_check(struct rtwn_softc *sc, struct ieee80211vap *vap)
718 for (ntries = 0; ntries < 5; ntries++) {
719 error = rtwn_push_nulldata(sc, vap);
724 device_printf(sc->sc_dev,
725 "%s: cannot push f/w frames into chip, error %d!\n",
734 rtwn_construct_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap,
735 uint8_t *ptr, int qos)
737 struct rtwn_vap *uvp = RTWN_VAP(vap);
738 struct ieee80211com *ic = &sc->sc_ic;
739 struct rtwn_tx_desc_common *txd;
740 struct ieee80211_frame *wh;
743 /* XXX obtain from net80211 */
744 wh = (struct ieee80211_frame *)(ptr + sc->txdesc_len);
745 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA;
746 wh->i_fc[1] = IEEE80211_FC1_DIR_TODS;
747 IEEE80211_ADDR_COPY(wh->i_addr1, vap->iv_bss->ni_bssid);
748 IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
749 IEEE80211_ADDR_COPY(wh->i_addr3, vap->iv_bss->ni_macaddr);
751 txd = (struct rtwn_tx_desc_common *)ptr;
752 txd->offset = sc->txdesc_len;
753 pktlen = sc->txdesc_len;
755 struct ieee80211_qosframe *qwh;
756 const int tid = WME_AC_TO_TID(WME_AC_BE);
758 qwh = (struct ieee80211_qosframe *)wh;
759 qwh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_QOS_NULL;
760 qwh->i_qos[0] = tid & IEEE80211_QOS_TID;
762 txd->pktlen = htole16(sizeof(struct ieee80211_qosframe));
763 pktlen += sizeof(struct ieee80211_qosframe);
765 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA;
767 txd->pktlen = htole16(sizeof(struct ieee80211_frame));
768 pktlen += sizeof(struct ieee80211_frame);
771 rtwn_fill_tx_desc_null(sc, ptr,
772 ic->ic_curmode == IEEE80211_MODE_11B, qos, uvp->id);
778 rtwn_push_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap)
780 struct rtwn_vap *uvp = RTWN_VAP(vap);
781 struct ieee80211com *ic = vap->iv_ic;
782 struct ieee80211_channel *c = ic->ic_curchan;
785 int required_size, bcn_size, null_size, null_data, error;
787 if (!(sc->sc_flags & RTWN_FW_LOADED))
788 return (0); /* requires firmware */
790 KASSERT(sc->page_size > 0, ("page size was not set!\n"));
792 /* Leave some space for beacon (multi-vap) */
793 bcn_size = roundup(RTWN_BCN_MAX_SIZE, sc->page_size);
794 /* 1 page for Null Data + 1 page for Qos Null Data frames. */
795 required_size = bcn_size + sc->page_size * 2;
797 m = m_get2(required_size, M_NOWAIT, MT_DATA, M_PKTHDR);
801 /* Setup beacon descriptor. */
802 rtwn_beacon_set_rate(sc, &uvp->bcn_desc.txd[0],
803 IEEE80211_IS_CHAN_5GHZ(c));
805 ptr = mtod(m, uint8_t *);
806 memset(ptr, 0, required_size - sc->txdesc_len);
808 /* Construct Null Data frame. */
809 ptr += bcn_size - sc->txdesc_len;
810 null_size = rtwn_construct_nulldata(sc, vap, ptr, 0);
811 KASSERT(null_size < sc->page_size,
812 ("recalculate size for Null Data frame\n"));
814 /* Construct Qos Null Data frame. */
815 ptr += roundup(null_size, sc->page_size);
816 null_size = rtwn_construct_nulldata(sc, vap, ptr, 1);
817 KASSERT(null_size < sc->page_size,
818 ("recalculate size for Qos Null Data frame\n"));
820 /* Do not try to detect a beacon here. */
821 rtwn_setbits_1_shift(sc, R92C_CR, 0, R92C_CR_ENSWBCN, 1);
822 rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL,
823 R92C_FWHW_TXQ_CTRL_REAL_BEACON, 0, 2);
825 if (uvp->bcn_mbuf != NULL) {
826 rtwn_beacon_unload(sc, uvp->id);
827 m_freem(uvp->bcn_mbuf);
830 m->m_pkthdr.len = m->m_len = required_size - sc->txdesc_len;
833 error = rtwn_tx_beacon_check(sc, uvp);
835 RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON,
836 "%s: frame was not recognized!\n", __func__);
840 /* Setup addresses in firmware. */
841 null_data = howmany(bcn_size, sc->page_size);
842 error = rtwn_set_rsvd_page(sc, 0, null_data, null_data + 1);
844 device_printf(sc->sc_dev,
845 "%s: CMD_RSVD_PAGE was not sent, error %d\n",
851 /* Re-enable beacon detection. */
852 rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL,
853 0, R92C_FWHW_TXQ_CTRL_REAL_BEACON, 2);
854 rtwn_setbits_1_shift(sc, R92C_CR, R92C_CR_ENSWBCN, 0, 1);
856 /* Restore beacon (if present). */
857 if (sc->bcn_vaps > 0 && sc->vaps[!uvp->id] != NULL) {
858 struct rtwn_vap *uvp2 = sc->vaps[!uvp->id];
860 if (uvp2->curr_mode != R92C_MSR_NOLINK)
861 error = rtwn_tx_beacon_check(sc, uvp2);
868 rtwn_pwrmode_init(void *arg)
870 struct rtwn_softc *sc = arg;
872 rtwn_cmd_sleepable(sc, NULL, 0, rtwn_set_pwrmode_cb);
876 rtwn_set_pwrmode_cb(struct rtwn_softc *sc, union sec_param *data)
878 struct ieee80211vap *vap = &sc->vaps[0]->vap;
881 rtwn_set_pwrmode(sc, vap, 1);
886 rtwn_tsf_sync_adhoc(void *arg)
888 struct ieee80211vap *vap = arg;
889 struct ieee80211com *ic = vap->iv_ic;
890 struct rtwn_vap *uvp = RTWN_VAP(vap);
892 if (uvp->curr_mode != R92C_MSR_NOLINK) {
893 /* Do it in process context. */
894 ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
899 * Workaround for TSF synchronization:
900 * when BSSID filter in IBSS mode is not set
901 * (and TSF synchronization is enabled), then any beacon may update it.
902 * This routine synchronizes it when BSSID matching is enabled (IBSS merge
903 * is not possible during this period).
905 * NOTE: there is no race with rtwn_newstate(), since it uses the same
909 rtwn_tsf_sync_adhoc_task(void *arg, int pending)
911 struct ieee80211vap *vap = arg;
912 struct rtwn_vap *uvp = RTWN_VAP(vap);
913 struct rtwn_softc *sc = vap->iv_ic->ic_softc;
914 struct ieee80211_node *ni;
917 ni = ieee80211_ref_node(vap->iv_bss);
919 /* Accept beacons with the same BSSID. */
920 rtwn_set_rx_bssid_all(sc, 0);
922 /* Deny RCR updates. */
923 sc->sc_flags |= RTWN_RCR_LOCKED;
925 /* Enable synchronization. */
926 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
927 R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
930 rtwn_delay(sc, ni->ni_intval * 5 * 1000);
932 /* Disable synchronization. */
933 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
934 0, R92C_BCN_CTRL_DIS_TSF_UDT0);
936 /* Accept all beacons. */
937 sc->sc_flags &= ~RTWN_RCR_LOCKED;
938 rtwn_set_rx_bssid_all(sc, 1);
940 /* Schedule next TSF synchronization. */
941 callout_reset(&uvp->tsf_sync_adhoc, 60*hz, rtwn_tsf_sync_adhoc, vap);
943 ieee80211_free_node(ni);
948 rtwn_tsf_sync_enable(struct rtwn_softc *sc, struct ieee80211vap *vap)
950 struct ieee80211com *ic = &sc->sc_ic;
951 struct rtwn_vap *uvp = RTWN_VAP(vap);
954 rtwn_write_1(sc, R92C_DUAL_TSF_RST, R92C_DUAL_TSF_RESET(uvp->id));
956 switch (vap->iv_opmode) {
957 case IEEE80211_M_STA:
958 /* Enable TSF synchronization. */
959 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
960 R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
962 case IEEE80211_M_IBSS:
963 ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
965 case IEEE80211_M_HOSTAP:
966 /* Enable beaconing. */
967 rtwn_beacon_enable(sc, uvp->id, 1);
970 device_printf(sc->sc_dev, "undefined opmode %d\n",
977 rtwn_set_ack_preamble(struct rtwn_softc *sc)
979 struct ieee80211com *ic = &sc->sc_ic;
982 reg = rtwn_read_4(sc, R92C_WMAC_TRXPTCL_CTL);
983 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
984 reg |= R92C_WMAC_TRXPTCL_SHPRE;
986 reg &= ~R92C_WMAC_TRXPTCL_SHPRE;
987 rtwn_write_4(sc, R92C_WMAC_TRXPTCL_CTL, reg);
991 rtwn_set_mode(struct rtwn_softc *sc, uint8_t mode, int id)
994 rtwn_setbits_1(sc, R92C_MSR, R92C_MSR_MASK << id * 2, mode << id * 2);
995 if (sc->vaps[id] != NULL)
996 sc->vaps[id]->curr_mode = mode;
1000 rtwn_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate,
1003 struct ieee80211com *ic = vap->iv_ic;
1004 struct rtwn_softc *sc = ic->ic_softc;
1005 struct rtwn_vap *uvp = RTWN_VAP(vap);
1007 RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
1008 ieee80211_state_name[vap->iv_state],
1009 ieee80211_state_name[nstate]);
1011 if (vap->iv_state != nstate) {
1012 IEEE80211_UNLOCK(ic);
1016 case IEEE80211_S_INIT:
1018 sc->monvaps_running--;
1020 if (sc->vaps_running == 0) {
1021 /* Turn link LED off. */
1022 rtwn_set_led(sc, RTWN_LED_LINK, 0);
1025 case IEEE80211_S_RUN:
1027 sc->monvaps_running++;
1029 if (sc->vaps_running == 1) {
1030 /* Turn link LED on. */
1031 rtwn_set_led(sc, RTWN_LED_LINK, 1);
1043 return (uvp->newstate(vap, nstate, arg));
1047 rtwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1049 struct rtwn_vap *uvp = RTWN_VAP(vap);
1050 struct ieee80211com *ic = vap->iv_ic;
1051 struct rtwn_softc *sc = ic->ic_softc;
1052 enum ieee80211_state ostate;
1053 int error, early_newstate;
1055 ostate = vap->iv_state;
1056 RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
1057 ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
1059 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC &&
1060 ostate == IEEE80211_S_INIT && nstate == IEEE80211_S_RUN) {
1061 /* need to call iv_newstate() firstly */
1062 error = uvp->newstate(vap, nstate, arg);
1070 IEEE80211_UNLOCK(ic);
1072 if (ostate == IEEE80211_S_RUN) {
1075 /* Set media status to 'No Link'. */
1076 rtwn_set_mode(sc, R92C_MSR_NOLINK, uvp->id);
1078 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1079 /* Stop periodical TSF synchronization. */
1080 callout_stop(&uvp->tsf_sync_adhoc);
1083 /* Disable TSF synchronization / beaconing. */
1084 rtwn_beacon_enable(sc, uvp->id, 0);
1085 rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
1086 0, R92C_BCN_CTRL_DIS_TSF_UDT0);
1088 /* NB: monitor mode vaps are using port 0. */
1089 if (uvp->id != 0 || sc->monvaps_running == 0) {
1091 rtwn_write_1(sc, R92C_DUAL_TSF_RST,
1092 R92C_DUAL_TSF_RESET(uvp->id));
1095 #ifndef RTWN_WITHOUT_UCODE
1096 if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 && uvp->id == 0) {
1097 /* Disable power management. */
1098 callout_stop(&sc->sc_pwrmode_init);
1099 rtwn_set_pwrmode(sc, vap, 0);
1102 if (sc->vaps_running - sc->monvaps_running > 0) {
1103 /* Recalculate basic rates bitmap. */
1104 rtwn_calc_basicrates(sc);
1107 if (sc->vaps_running == sc->monvaps_running) {
1108 /* Stop calibration. */
1109 callout_stop(&sc->sc_calib_to);
1111 /* Stop Rx of data frames. */
1112 rtwn_write_2(sc, R92C_RXFLTMAP2, 0);
1114 /* Reset EDCA parameters. */
1115 rtwn_write_4(sc, R92C_EDCA_VO_PARAM, 0x002f3217);
1116 rtwn_write_4(sc, R92C_EDCA_VI_PARAM, 0x005e4317);
1117 rtwn_write_4(sc, R92C_EDCA_BE_PARAM, 0x00105320);
1118 rtwn_write_4(sc, R92C_EDCA_BK_PARAM, 0x0000a444);
1120 if (sc->vaps_running == 0) {
1121 /* Turn link LED off. */
1122 rtwn_set_led(sc, RTWN_LED_LINK, 0);
1129 case IEEE80211_S_SCAN:
1130 /* Pause AC Tx queues. */
1131 if (sc->vaps_running == 0)
1132 rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_AC);
1134 case IEEE80211_S_RUN:
1135 error = rtwn_run(sc, vap);
1137 device_printf(sc->sc_dev,
1138 "%s: could not move to RUN state\n", __func__);
1153 return (early_newstate ? 0 : uvp->newstate(vap, nstate, arg));
1157 rtwn_calc_basicrates(struct rtwn_softc *sc)
1159 struct ieee80211com *ic = &sc->sc_ic;
1160 uint32_t basicrates;
1163 RTWN_ASSERT_LOCKED(sc);
1165 if (ic->ic_flags & IEEE80211_F_SCAN)
1166 return; /* will be done by rtwn_scan_end(). */
1169 for (i = 0; i < nitems(sc->vaps); i++) {
1170 struct rtwn_vap *rvp;
1171 struct ieee80211vap *vap;
1172 struct ieee80211_node *ni;
1176 if (rvp == NULL || rvp->curr_mode == R92C_MSR_NOLINK)
1180 if (vap->iv_bss == NULL)
1183 ni = ieee80211_ref_node(vap->iv_bss);
1184 rtwn_get_rates(sc, &ni->ni_rates, NULL, &rates, NULL, 1);
1185 basicrates |= rates;
1186 ieee80211_free_node(ni);
1189 if (basicrates == 0)
1192 /* XXX initial RTS rate? */
1193 rtwn_set_basicrates(sc, basicrates);
1197 rtwn_run(struct rtwn_softc *sc, struct ieee80211vap *vap)
1199 struct ieee80211com *ic = vap->iv_ic;
1200 struct rtwn_vap *uvp = RTWN_VAP(vap);
1201 struct ieee80211_node *ni;
1205 RTWN_ASSERT_LOCKED(sc);
1208 ni = ieee80211_ref_node(vap->iv_bss);
1210 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1211 ni->ni_chan == IEEE80211_CHAN_ANYC) {
1216 switch (vap->iv_opmode) {
1217 case IEEE80211_M_STA:
1218 mode = R92C_MSR_INFRA;
1220 case IEEE80211_M_IBSS:
1221 mode = R92C_MSR_ADHOC;
1223 case IEEE80211_M_HOSTAP:
1227 KASSERT(0, ("undefined opmode %d\n", vap->iv_opmode));
1232 /* Set media status to 'Associated'. */
1233 rtwn_set_mode(sc, mode, uvp->id);
1236 /* XXX multi-vap? */
1237 rtwn_write_2(sc, R92C_BCN_PSR_RPT,
1238 0xc000 | IEEE80211_NODE_AID(ni));
1241 rtwn_set_bssid(sc, ni->ni_bssid, uvp->id);
1243 /* Set beacon interval. */
1244 rtwn_write_2(sc, R92C_BCN_INTERVAL(uvp->id), ni->ni_intval);
1246 if (sc->vaps_running == sc->monvaps_running) {
1247 /* Enable Rx of data frames. */
1248 rtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff);
1250 /* Flush all AC queues. */
1251 rtwn_write_1(sc, R92C_TXPAUSE, 0);
1254 #ifndef RTWN_WITHOUT_UCODE
1255 /* Upload (QoS) Null Data frame to firmware. */
1256 /* Note: do this for port 0 only. */
1257 if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 &&
1258 vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
1259 error = rtwn_tx_fwpkt_check(sc, vap);
1263 /* Setup power management. */
1265 * NB: it will be enabled immediately - delay it,
1266 * so 4-Way handshake will not be interrupted.
1268 callout_reset(&sc->sc_pwrmode_init, 5*hz,
1269 rtwn_pwrmode_init, sc);
1273 /* Enable TSF synchronization. */
1274 rtwn_tsf_sync_enable(sc, vap);
1276 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1277 vap->iv_opmode == IEEE80211_M_IBSS) {
1278 error = rtwn_setup_beacon(sc, ni);
1280 device_printf(sc->sc_dev,
1281 "unable to push beacon into the chip, "
1282 "error %d\n", error);
1287 /* Set ACK preamble type. */
1288 rtwn_set_ack_preamble(sc);
1290 /* Set basic rates mask. */
1291 rtwn_calc_basicrates(sc);
1294 rtwn_write_1(sc, R92C_SIFS_CCK + 1, 10);
1295 rtwn_write_1(sc, R92C_SIFS_OFDM + 1, 10);
1296 rtwn_write_1(sc, R92C_SPEC_SIFS + 1, 10);
1297 rtwn_write_1(sc, R92C_MAC_SPEC_SIFS + 1, 10);
1298 rtwn_write_1(sc, R92C_R2T_SIFS + 1, 10);
1299 rtwn_write_1(sc, R92C_T2T_SIFS + 1, 10);
1302 if (sc->vaps_running == sc->monvaps_running) {
1303 /* Reset temperature calibration state machine. */
1304 sc->sc_flags &= ~RTWN_TEMP_MEASURED;
1305 sc->thcal_temp = sc->thermal_meter;
1307 /* Start periodic calibration. */
1308 callout_reset(&sc->sc_calib_to, 2*hz, rtwn_calib_to,
1311 if (sc->vaps_running == 0) {
1312 /* Turn link LED on. */
1313 rtwn_set_led(sc, RTWN_LED_LINK, 1);
1318 ieee80211_free_node(ni);
1325 rtwn_watchdog(void *arg)
1327 struct rtwn_softc *sc = arg;
1328 struct ieee80211com *ic = &sc->sc_ic;
1330 RTWN_ASSERT_LOCKED(sc);
1332 KASSERT(sc->sc_flags & RTWN_RUNNING, ("not running"));
1334 if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) {
1335 ic_printf(ic, "device timeout\n");
1336 ieee80211_restart_all(ic);
1339 callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
1344 rtwn_parent(struct ieee80211com *ic)
1346 struct rtwn_softc *sc = ic->ic_softc;
1347 struct ieee80211vap *vap;
1349 if (ic->ic_nrunning > 0) {
1350 if (rtwn_init(sc) != 0) {
1352 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
1353 ieee80211_stop_locked(vap);
1354 IEEE80211_UNLOCK(ic);
1356 ieee80211_start_all(ic);
1363 rtwn_llt_write(struct rtwn_softc *sc, uint32_t addr, uint32_t data)
1367 error = rtwn_write_4(sc, R92C_LLT_INIT,
1368 SM(R92C_LLT_INIT_OP, R92C_LLT_INIT_OP_WRITE) |
1369 SM(R92C_LLT_INIT_ADDR, addr) |
1370 SM(R92C_LLT_INIT_DATA, data));
1373 /* Wait for write operation to complete. */
1374 for (ntries = 0; ntries < 20; ntries++) {
1375 if (MS(rtwn_read_4(sc, R92C_LLT_INIT), R92C_LLT_INIT_OP) ==
1376 R92C_LLT_INIT_OP_NO_ACTIVE)
1384 rtwn_llt_init(struct rtwn_softc *sc)
1388 /* Reserve pages [0; page_count]. */
1389 for (i = 0; i < sc->page_count; i++) {
1390 if ((error = rtwn_llt_write(sc, i, i + 1)) != 0)
1393 /* NB: 0xff indicates end-of-list. */
1394 if ((error = rtwn_llt_write(sc, i, 0xff)) != 0)
1397 * Use pages [page_count + 1; pktbuf_count - 1]
1400 for (++i; i < sc->pktbuf_count - 1; i++) {
1401 if ((error = rtwn_llt_write(sc, i, i + 1)) != 0)
1404 /* Make the last page point to the beginning of the ring buffer. */
1405 error = rtwn_llt_write(sc, i, sc->page_count + 1);
1410 rtwn_dma_init(struct rtwn_softc *sc)
1412 #define RTWN_CHK(res) do { \
1417 uint8_t tx_boundary;
1420 /* Initialize LLT table. */
1421 error = rtwn_llt_init(sc);
1425 /* Set the number of pages for each queue. */
1426 RTWN_DPRINTF(sc, RTWN_DEBUG_RESET,
1427 "%s: pages per queue: high %d, normal %d, low %d, public %d\n",
1428 __func__, sc->nhqpages, sc->nnqpages, sc->nlqpages,
1431 RTWN_CHK(rtwn_write_1(sc, R92C_RQPN_NPQ, sc->nnqpages));
1432 RTWN_CHK(rtwn_write_4(sc, R92C_RQPN,
1433 /* Set number of pages for public queue. */
1434 SM(R92C_RQPN_PUBQ, sc->npubqpages) |
1435 /* Set number of pages for high priority queue. */
1436 SM(R92C_RQPN_HPQ, sc->nhqpages) |
1437 /* Set number of pages for low priority queue. */
1438 SM(R92C_RQPN_LPQ, sc->nlqpages) |
1442 /* Initialize TX buffer boundary. */
1443 KASSERT(sc->page_count < 255 && sc->page_count > 0,
1444 ("page_count is %d\n", sc->page_count));
1445 tx_boundary = sc->page_count + 1;
1446 RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_BCNQ_BDNY, tx_boundary));
1447 RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_MGQ_BDNY, tx_boundary));
1448 RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_WMAC_LBK_BF_HD, tx_boundary));
1449 RTWN_CHK(rtwn_write_1(sc, R92C_TRXFF_BNDY, tx_boundary));
1450 RTWN_CHK(rtwn_write_1(sc, R92C_TDECTRL + 1, tx_boundary));
1452 error = rtwn_init_bcnq1_boundary(sc);
1456 /* Set queue to USB pipe mapping. */
1457 /* Note: PCIe devices are using some magic number here. */
1458 reg = rtwn_get_qmap(sc);
1459 RTWN_CHK(rtwn_setbits_2(sc, R92C_TRXDMA_CTRL,
1460 R92C_TRXDMA_CTRL_QMAP_M, reg));
1462 /* Configure Tx/Rx DMA (PCIe). */
1463 rtwn_set_desc_addr(sc);
1465 /* Set Tx/Rx transfer page boundary. */
1466 RTWN_CHK(rtwn_write_2(sc, R92C_TRXFF_BNDY + 2,
1467 sc->rx_dma_size - 1));
1469 /* Set Tx/Rx transfer page size. */
1470 rtwn_set_page_size(sc);
1476 rtwn_mac_init(struct rtwn_softc *sc)
1480 /* Write MAC initialization values. */
1481 for (i = 0; i < sc->mac_size; i++) {
1482 error = rtwn_write_1(sc, sc->mac_prog[i].reg,
1483 sc->mac_prog[i].val);
1492 rtwn_mrr_init(struct rtwn_softc *sc)
1496 /* Drop rate index by 1 per retry. */
1497 for (i = 0; i < R92C_DARFRC_SIZE; i++) {
1498 rtwn_write_1(sc, R92C_DARFRC + i, i + 1);
1499 rtwn_write_1(sc, R92C_RARFRC + i, i + 1);
1504 rtwn_scan_start(struct ieee80211com *ic)
1506 struct rtwn_softc *sc = ic->ic_softc;
1509 /* Pause beaconing. */
1510 rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_BCN);
1511 /* Receive beacons / probe responses from any BSSID. */
1512 if (sc->bcn_vaps == 0)
1513 rtwn_set_rx_bssid_all(sc, 1);
1518 rtwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
1520 struct rtwn_softc *sc = ss->ss_ic->ic_softc;
1522 /* Make link LED blink during scan. */
1524 rtwn_set_led(sc, RTWN_LED_LINK, !sc->ledlink);
1527 sc->sc_scan_curchan(ss, maxdwell);
1531 rtwn_scan_end(struct ieee80211com *ic)
1533 struct rtwn_softc *sc = ic->ic_softc;
1536 /* Restore limitations. */
1537 if (ic->ic_promisc == 0 && sc->bcn_vaps == 0)
1538 rtwn_set_rx_bssid_all(sc, 0);
1540 /* Restore LED state. */
1541 rtwn_set_led(sc, RTWN_LED_LINK, (sc->vaps_running != 0));
1543 /* Restore basic rates mask. */
1544 rtwn_calc_basicrates(sc);
1546 /* Resume beaconing. */
1547 rtwn_setbits_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_BCN, 0);
1552 rtwn_getradiocaps(struct ieee80211com *ic,
1553 int maxchans, int *nchans, struct ieee80211_channel chans[])
1555 struct rtwn_softc *sc = ic->ic_softc;
1556 uint8_t bands[IEEE80211_MODE_BYTES];
1559 memset(bands, 0, sizeof(bands));
1560 setbit(bands, IEEE80211_MODE_11B);
1561 setbit(bands, IEEE80211_MODE_11G);
1562 setbit(bands, IEEE80211_MODE_11NG);
1563 ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
1564 rtwn_chan_2ghz, nitems(rtwn_chan_2ghz), bands,
1565 !!(ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40));
1567 /* XXX workaround add_channel_list() limitations */
1568 setbit(bands, IEEE80211_MODE_11A);
1569 setbit(bands, IEEE80211_MODE_11NA);
1570 for (i = 0; i < nitems(sc->chan_num_5ghz); i++) {
1571 if (sc->chan_num_5ghz[i] == 0)
1574 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
1575 sc->chan_list_5ghz[i], sc->chan_num_5ghz[i], bands,
1576 !!(ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40));
1581 rtwn_update_chw(struct ieee80211com *ic)
1586 rtwn_set_channel(struct ieee80211com *ic)
1588 struct rtwn_softc *sc = ic->ic_softc;
1589 struct ieee80211_channel *c = ic->ic_curchan;
1592 rtwn_set_chan(sc, c);
1593 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
1594 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
1595 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
1596 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
1601 rtwn_wme_update(struct ieee80211com *ic)
1603 struct ieee80211_channel *c = ic->ic_curchan;
1604 struct rtwn_softc *sc = ic->ic_softc;
1605 struct wmeParams *wmep = sc->cap_wmeParams;
1606 uint8_t aifs, acm, slottime;
1609 /* Prevent possible races. */
1610 IEEE80211_LOCK(ic); /* XXX */
1612 memcpy(wmep, ic->ic_wme.wme_chanParams.cap_wmeParams,
1613 sizeof(sc->cap_wmeParams));
1615 IEEE80211_UNLOCK(ic);
1618 slottime = IEEE80211_GET_SLOTTIME(ic);
1621 for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) {
1622 /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */
1623 aifs = wmep[ac].wmep_aifsn * slottime +
1624 (IEEE80211_IS_CHAN_5GHZ(c) ?
1625 IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS);
1626 rtwn_write_4(sc, wme2reg[ac],
1627 SM(R92C_EDCA_PARAM_TXOP, wmep[ac].wmep_txopLimit) |
1628 SM(R92C_EDCA_PARAM_ECWMIN, wmep[ac].wmep_logcwmin) |
1629 SM(R92C_EDCA_PARAM_ECWMAX, wmep[ac].wmep_logcwmax) |
1630 SM(R92C_EDCA_PARAM_AIFS, aifs));
1631 if (ac != WME_AC_BE)
1632 acm |= wmep[ac].wmep_acm << ac;
1636 acm |= R92C_ACMHWCTRL_EN;
1637 rtwn_setbits_1(sc, R92C_ACMHWCTRL, R92C_ACMHWCTRL_ACM_MASK, acm);
1644 rtwn_update_slot(struct ieee80211com *ic)
1646 rtwn_cmd_sleepable(ic->ic_softc, NULL, 0, rtwn_update_slot_cb);
1650 rtwn_update_slot_cb(struct rtwn_softc *sc, union sec_param *data)
1652 struct ieee80211com *ic = &sc->sc_ic;
1655 slottime = IEEE80211_GET_SLOTTIME(ic);
1657 RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s: setting slot time to %uus\n",
1658 __func__, slottime);
1660 rtwn_write_1(sc, R92C_SLOT, slottime);
1661 rtwn_update_aifs(sc, slottime);
1665 rtwn_update_aifs(struct rtwn_softc *sc, uint8_t slottime)
1667 struct ieee80211_channel *c = sc->sc_ic.ic_curchan;
1668 const struct wmeParams *wmep = sc->cap_wmeParams;
1671 for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) {
1672 /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */
1673 aifs = wmep[ac].wmep_aifsn * slottime +
1674 (IEEE80211_IS_CHAN_5GHZ(c) ?
1675 IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS);
1676 rtwn_write_1(sc, wme2reg[ac], aifs);
1681 rtwn_update_promisc(struct ieee80211com *ic)
1683 struct rtwn_softc *sc = ic->ic_softc;
1686 if (sc->sc_flags & RTWN_RUNNING)
1687 rtwn_set_promisc(sc);
1692 rtwn_update_mcast(struct ieee80211com *ic)
1694 struct rtwn_softc *sc = ic->ic_softc;
1697 if (sc->sc_flags & RTWN_RUNNING)
1703 rtwn_set_bssid(struct rtwn_softc *sc, const uint8_t *bssid, int id)
1707 error = rtwn_write_4(sc, R92C_BSSID(id), le32dec(&bssid[0]));
1710 error = rtwn_write_2(sc, R92C_BSSID(id) + 4, le16dec(&bssid[4]));
1716 rtwn_set_macaddr(struct rtwn_softc *sc, const uint8_t *addr, int id)
1720 error = rtwn_write_4(sc, R92C_MACID(id), le32dec(&addr[0]));
1723 error = rtwn_write_2(sc, R92C_MACID(id) + 4, le16dec(&addr[4]));
1728 static struct ieee80211_node *
1729 rtwn_node_alloc(struct ieee80211vap *vap,
1730 const uint8_t mac[IEEE80211_ADDR_LEN])
1732 struct rtwn_node *un;
1734 un = malloc(sizeof (struct rtwn_node), M_80211_NODE,
1740 un->id = RTWN_MACID_UNDEFINED;
1747 rtwn_newassoc(struct ieee80211_node *ni, int isnew)
1749 struct rtwn_softc *sc = ni->ni_ic->ic_softc;
1750 struct rtwn_node *un = RTWN_NODE(ni);
1757 for (id = 0; id <= sc->macid_limit; id++) {
1758 if (id != RTWN_MACID_BC && sc->node_list[id] == NULL) {
1760 sc->node_list[id] = ni;
1766 if (id > sc->macid_limit) {
1767 device_printf(sc->sc_dev, "%s: node table is full\n",
1772 #ifndef RTWN_WITHOUT_UCODE
1773 /* Notify firmware. */
1774 id |= RTWN_MACID_VALID;
1775 rtwn_cmd_sleepable(sc, &id, sizeof(id), rtwn_set_media_status);
1780 rtwn_node_free(struct ieee80211_node *ni)
1782 struct rtwn_softc *sc = ni->ni_ic->ic_softc;
1783 struct rtwn_node *un = RTWN_NODE(ni);
1786 if (un->id != RTWN_MACID_UNDEFINED) {
1787 sc->node_list[un->id] = NULL;
1788 #ifndef RTWN_WITHOUT_UCODE
1789 rtwn_cmd_sleepable(sc, &un->id, sizeof(un->id),
1790 rtwn_set_media_status);
1795 sc->sc_node_free(ni);
1799 rtwn_init_beacon_reg(struct rtwn_softc *sc)
1801 rtwn_write_1(sc, R92C_BCN_CTRL(0), R92C_BCN_CTRL_DIS_TSF_UDT0);
1802 rtwn_write_1(sc, R92C_BCN_CTRL(1), R92C_BCN_CTRL_DIS_TSF_UDT0);
1803 rtwn_write_2(sc, R92C_TBTT_PROHIBIT, 0x6404);
1804 rtwn_write_1(sc, R92C_DRVERLYINT, 0x05);
1805 rtwn_write_1(sc, R92C_BCNDMATIM, 0x02);
1806 rtwn_write_2(sc, R92C_BCNTCFG, 0x660f);
1810 rtwn_init(struct rtwn_softc *sc)
1812 struct ieee80211com *ic = &sc->sc_ic;
1816 if (sc->sc_flags & RTWN_RUNNING) {
1820 sc->sc_flags |= RTWN_STARTED;
1822 /* Power on adapter. */
1823 error = rtwn_power_on(sc);
1827 #ifndef RTWN_WITHOUT_UCODE
1828 /* Load 8051 microcode. */
1829 error = rtwn_load_firmware(sc);
1831 sc->sc_flags |= RTWN_FW_LOADED;
1833 /* Init firmware commands ring. */
1837 /* Initialize MAC block. */
1838 error = rtwn_mac_init(sc);
1840 device_printf(sc->sc_dev,
1841 "%s: error while initializing MAC block\n", __func__);
1845 /* Initialize DMA. */
1846 error = rtwn_dma_init(sc);
1850 /* Drop incorrect TX (USB). */
1851 rtwn_drop_incorrect_tx(sc);
1853 /* Set info size in Rx descriptors (in 64-bit words). */
1854 rtwn_write_1(sc, R92C_RX_DRVINFO_SZ, R92C_RX_DRVINFO_SZ_DEF);
1856 /* Init interrupts. */
1859 for (i = 0; i < nitems(sc->vaps); i++) {
1860 struct rtwn_vap *uvp = sc->vaps[i];
1862 /* Set initial network type. */
1863 rtwn_set_mode(sc, R92C_MSR_NOLINK, i);
1868 /* Set MAC address. */
1869 error = rtwn_set_macaddr(sc, uvp->vap.iv_myaddr, uvp->id);
1874 /* Initialize Rx filter. */
1875 rtwn_rxfilter_init(sc);
1877 /* Set short/long retry limits. */
1878 rtwn_write_2(sc, R92C_RL,
1879 SM(R92C_RL_SRL, 0x30) | SM(R92C_RL_LRL, 0x30));
1881 /* Initialize EDCA parameters. */
1884 rtwn_setbits_1(sc, R92C_FWHW_TXQ_CTRL, 0,
1885 R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW);
1886 /* Set ACK timeout. */
1887 rtwn_write_1(sc, R92C_ACKTO, sc->ackto);
1889 /* Setup aggregation. */
1890 /* Tx aggregation. */
1891 rtwn_init_tx_agg(sc);
1892 rtwn_init_rx_agg(sc);
1894 /* Initialize beacon parameters. */
1895 rtwn_init_beacon_reg(sc);
1897 /* Init A-MPDU parameters. */
1898 rtwn_init_ampdu(sc);
1900 /* Init MACTXEN / MACRXEN after setting RxFF boundary. */
1901 rtwn_setbits_1(sc, R92C_CR, 0, R92C_CR_MACTXEN | R92C_CR_MACRXEN);
1903 /* Initialize BB/RF blocks. */
1907 /* Initialize wireless band. */
1908 rtwn_set_chan(sc, ic->ic_curchan);
1910 /* Clear per-station keys table. */
1913 /* Enable decryption / encryption. */
1914 rtwn_init_seccfg(sc);
1916 /* Install static keys (if any). */
1917 for (i = 0; i < nitems(sc->vaps); i++) {
1918 if (sc->vaps[i] != NULL) {
1919 error = rtwn_init_static_keys(sc, sc->vaps[i]);
1925 /* Initialize antenna selection. */
1926 rtwn_init_antsel(sc);
1928 /* Enable hardware sequence numbering. */
1929 rtwn_write_1(sc, R92C_HWSEQ_CTRL, R92C_TX_QUEUE_ALL);
1932 rtwn_write_4(sc, R92C_BAR_MODE_CTRL, 0x0201ffff);
1935 rtwn_write_1(sc, R92C_NAV_UPPER, 0);
1937 /* Initialize GPIO setting. */
1938 rtwn_setbits_1(sc, R92C_GPIO_MUXCFG, R92C_GPIO_MUXCFG_ENBT, 0);
1940 /* Initialize MRR. */
1943 /* Device-specific post initialization. */
1946 rtwn_start_xfers(sc);
1949 callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
1952 sc->sc_flags |= RTWN_RUNNING;
1960 rtwn_stop(struct rtwn_softc *sc)
1964 if (!(sc->sc_flags & RTWN_STARTED)) {
1970 callout_stop(&sc->sc_watchdog_to);
1971 sc->sc_tx_timer = 0;
1973 sc->sc_flags &= ~(RTWN_STARTED | RTWN_RUNNING | RTWN_FW_LOADED);
1974 sc->sc_flags &= ~RTWN_TEMP_MEASURED;
1977 sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
1980 ieee80211_tx_watchdog_stop(&sc->sc_ic);
1983 rtwn_abort_xfers(sc);
1984 rtwn_drain_mbufq(sc);
1986 rtwn_reset_lists(sc, NULL);
1990 MODULE_VERSION(rtwn, 2);
1991 MODULE_DEPEND(rtwn, wlan, 1, 1, 1);
1992 #ifndef RTWN_WITHOUT_UCODE
1993 MODULE_DEPEND(rtwn, firmware, 1, 1, 1);