sys/dev/rtwn/if_rtwn.c

   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 __FBSDID("$FreeBSD$");
  23
  24 /*
  25  * Driver for Realtek RTL8188CE-VAU/RTL8188CUS/RTL8188EU/RTL8188RU/RTL8192CU/RTL8812AU/RTL8821AU.
  26  */
  27 #include "opt_wlan.h"
  28
  29 #include <sys/param.h>
  30 #include <sys/sockio.h>
  31 #include <sys/sysctl.h>
  32 #include <sys/lock.h>
  33 #include <sys/mutex.h>
  34 #include <sys/mbuf.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>
  40 #include <sys/bus.h>
  41 #include <sys/endian.h>
  42 #include <sys/linker.h>
  43 #include <sys/firmware.h>
  44 #include <sys/kdb.h>
  45
  46 #include <net/bpf.h>
  47 #include <net/if.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>
  54
  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>
  60
  61 #include <net80211/ieee80211_var.h>
  62 #include <net80211/ieee80211_regdomain.h>
  63 #include <net80211/ieee80211_radiotap.h>
  64 #include <net80211/ieee80211_ratectl.h>
  65
  66 #include <dev/rtwn/if_rtwnreg.h>
  67 #include <dev/rtwn/if_rtwnvar.h>
  68
  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>
  79
  80 #include <dev/rtwn/rtl8192c/r92c_reg.h>
  81
  82
  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 *,
  96                             union sec_param *);
  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 *,
 105                             union sec_param *);
 106 #endif
 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 *);
 120 #ifndef D4054
 121 static void             rtwn_watchdog(void *);
 122 #endif
 123 static void             rtwn_parent(struct ieee80211com *);
 124 static int              rtwn_llt_write(struct rtwn_softc *, uint32_t,
 125                             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 *,
 132                             unsigned long);
 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 *,
 141                             union sec_param *);
 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 *);
 156
 157 MALLOC_DEFINE(M_RTWN_PRIV, "rtwn_priv", "rtwn driver private state");
 158
 159 static const uint8_t rtwn_chan_2ghz[] =
 160         { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
 161
 162 static const uint16_t wme2reg[] =
 163         { R92C_EDCA_BE_PARAM, R92C_EDCA_BK_PARAM,
 164           R92C_EDCA_VI_PARAM, R92C_EDCA_VO_PARAM };
 165
 166 int
 167 rtwn_attach(struct rtwn_softc *sc)
 168 {
 169         struct ieee80211com *ic = &sc->sc_ic;
 170         int error;
 171
 172         sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
 173
 174         RTWN_NT_LOCK_INIT(sc);
 175         rtwn_cmdq_init(sc);
 176 #ifndef D4054
 177         callout_init_mtx(&sc->sc_watchdog_to, &sc->sc_mtx, 0);
 178 #endif
 179         callout_init(&sc->sc_calib_to, 0);
 180         callout_init(&sc->sc_pwrmode_init, 0);
 181         mbufq_init(&sc->sc_snd, ifqmaxlen);
 182
 183         RTWN_LOCK(sc);
 184         error = rtwn_read_chipid(sc);
 185         RTWN_UNLOCK(sc);
 186         if (error != 0) {
 187                 device_printf(sc->sc_dev, "unsupported test chip\n");
 188                 goto detach;
 189         }
 190
 191         error = rtwn_read_rom(sc);
 192         if (error != 0) {
 193                 device_printf(sc->sc_dev, "%s: cannot read rom, error %d\n",
 194                     __func__, error);
 195                 goto detach;
 196         }
 197
 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;
 203         }
 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;
 209         }
 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);
 214                 goto detach;
 215         }
 216
 217         device_printf(sc->sc_dev, "MAC/BB %s, RF 6052 %dT%dR\n",
 218             sc->name, sc->ntxchains, sc->nrxchains);
 219
 220         ic->ic_softc = sc;
 221         ic->ic_phytype = IEEE80211_T_OFDM;      /* not only, but not used */
 222         ic->ic_opmode = IEEE80211_M_STA;        /* default to BSS mode */
 223
 224         /* set device capabilities */
 225         ic->ic_caps =
 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 */
 233 #endif
 234 #endif
 235                 | IEEE80211_C_SHPREAMBLE        /* short preamble supported */
 236                 | IEEE80211_C_SHSLOT            /* short slot time supported */
 237 #if 0
 238                 | IEEE80211_C_BGSCAN            /* capable of bg scanning */
 239 #endif
 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 */
 244                 ;
 245
 246         if (sc->sc_hwcrypto != RTWN_CRYPTO_SW) {
 247                 ic->ic_cryptocaps =
 248                     IEEE80211_CRYPTO_WEP |
 249                     IEEE80211_CRYPTO_TKIP |
 250                     IEEE80211_CRYPTO_AES_CCM;
 251         }
 252
 253         ic->ic_htcaps =
 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 */
 261             ;
 262
 263         if (sc->sc_ht40) {
 264                 ic->ic_htcaps |=
 265                       IEEE80211_HTCAP_CHWIDTH40 /* 40 MHz channel width */
 266                     | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
 267                     ;
 268         }
 269
 270         ic->ic_txstream = sc->ntxchains;
 271         ic->ic_rxstream = sc->nrxchains;
 272
 273         /* Enable TX watchdog */
 274 #ifdef D4054
 275         ic->ic_flags_ext |= IEEE80211_FEXT_WATCHDOG;
 276 #endif
 277
 278         /* Adjust capabilities. */
 279         rtwn_adj_devcaps(sc);
 280
 281         rtwn_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
 282             ic->ic_channels);
 283
 284         /* XXX TODO: setup regdomain if R92C_CHANNEL_PLAN_BY_HW bit is set. */
 285
 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;
 307
 308         rtwn_postattach(sc);
 309         rtwn_radiotap_attach(sc);
 310
 311         if (bootverbose)
 312                 ieee80211_announce(ic);
 313
 314         return (0);
 315
 316 detach:
 317         return (ENXIO);                 /* failure */
 318 }
 319
 320 static void
 321 rtwn_radiotap_attach(struct rtwn_softc *sc)
 322 {
 323         struct rtwn_rx_radiotap_header *rxtap = &sc->sc_rxtap;
 324         struct rtwn_tx_radiotap_header *txtap = &sc->sc_txtap;
 325
 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);
 329 }
 330
 331 void
 332 rtwn_sysctlattach(struct rtwn_softc *sc)
 333 {
 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);
 336
 337 #if 1
 338         sc->sc_ht40 = 0;
 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");
 342 #endif
 343
 344 #ifdef RTWN_DEBUG
 345         SYSCTL_ADD_U32(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 346             "debug", CTLFLAG_RWTUN, &sc->sc_debug, sc->sc_debug,
 347             "Control debugging printfs");
 348 #endif
 349
 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;
 357
 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;
 365
 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,
 369             sc->sc_ratectl,
 370             "Currently selected rate control mechanism (by the driver)");
 371 }
 372
 373 void
 374 rtwn_detach(struct rtwn_softc *sc)
 375 {
 376         struct ieee80211com *ic = &sc->sc_ic;
 377
 378         if (ic->ic_softc == sc) {
 379                 /* Stop command queue. */
 380                 RTWN_CMDQ_LOCK(sc);
 381                 sc->sc_detached = 1;
 382                 RTWN_CMDQ_UNLOCK(sc);
 383
 384                 ieee80211_draintask(ic, &sc->cmdq_task);
 385                 ieee80211_ifdetach(ic);
 386         }
 387
 388         rtwn_cmdq_destroy(sc);
 389         if (RTWN_NT_LOCK_INITIALIZED(sc))
 390                 RTWN_NT_LOCK_DESTROY(sc);
 391 }
 392
 393 void
 394 rtwn_suspend(struct rtwn_softc *sc)
 395 {
 396         struct ieee80211com *ic = &sc->sc_ic;
 397
 398         ieee80211_suspend_all(ic);
 399 }
 400
 401 void
 402 rtwn_resume(struct rtwn_softc *sc)
 403 {
 404         struct ieee80211com *ic = &sc->sc_ic;
 405
 406         ieee80211_resume_all(ic);
 407 }
 408
 409 static void
 410 rtwn_vap_decrement_counters(struct rtwn_softc *sc,
 411     enum ieee80211_opmode opmode, int id)
 412 {
 413
 414         RTWN_ASSERT_LOCKED(sc);
 415
 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"));
 419                 sc->vaps[id] = NULL;
 420         }
 421
 422         switch (opmode) {
 423         case IEEE80211_M_HOSTAP:
 424                 sc->ap_vaps--;
 425                 /* FALLTHROUGH */
 426         case IEEE80211_M_IBSS:
 427                 sc->bcn_vaps--;
 428                 /* FALLTHROUGH */
 429         case IEEE80211_M_STA:
 430                 sc->nvaps--;
 431                 break;
 432         case IEEE80211_M_MONITOR:
 433                 sc->mon_vaps--;
 434                 break;
 435         default:
 436                 KASSERT(0, ("wrong opmode %d\n", opmode));
 437                 break;
 438         }
 439
 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));
 446
 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",
 450             sc->mon_vaps));
 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));
 457 }
 458
 459 static void
 460 rtwn_set_ic_opmode(struct rtwn_softc *sc)
 461 {
 462         struct ieee80211com *ic = &sc->sc_ic;
 463
 464         RTWN_ASSERT_LOCKED(sc);
 465
 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;
 473         else
 474                 ic->ic_opmode = IEEE80211_M_MONITOR;
 475 }
 476
 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])
 482 {
 483         struct rtwn_softc *sc = ic->ic_softc;
 484         struct rtwn_vap *uvp;
 485         struct ieee80211vap *vap;
 486         int id = RTWN_VAP_ID_INVALID;
 487
 488         RTWN_LOCK(sc);
 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));
 495
 496         if (opmode != IEEE80211_M_MONITOR) {
 497                 switch (sc->nvaps) {
 498                 case 0:
 499                         id = 0;
 500                         break;
 501                 case 1:
 502                         if (sc->vaps[1] == NULL)
 503                                 id = 1;
 504                         else if (sc->vaps[0] == NULL)
 505                                 id = 0;
 506                         KASSERT(id != RTWN_VAP_ID_INVALID,
 507                             ("no free ports left\n"));
 508                         break;
 509                 case 2:
 510                 default:
 511                         goto fail;
 512                 }
 513
 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)
 518                                 goto fail;
 519                 }
 520         }
 521
 522         switch (opmode) {
 523         case IEEE80211_M_HOSTAP:
 524                 sc->ap_vaps++;
 525                 /* FALLTHROUGH */
 526         case IEEE80211_M_IBSS:
 527                 sc->bcn_vaps++;
 528                 /* FALLTHROUGH */
 529         case IEEE80211_M_STA:
 530                 sc->nvaps++;
 531                 break;
 532         case IEEE80211_M_MONITOR:
 533                 sc->mon_vaps++;
 534                 break;
 535         default:
 536                 KASSERT(0, ("unknown opmode %d\n", opmode));
 537                 goto fail;
 538         }
 539         RTWN_UNLOCK(sc);
 540
 541         uvp = malloc(sizeof(struct rtwn_vap), M_80211_VAP, M_WAITOK | M_ZERO);
 542         uvp->id = id;
 543         if (id != RTWN_VAP_ID_INVALID) {
 544                 RTWN_LOCK(sc);
 545                 sc->vaps[id] = uvp;
 546                 RTWN_UNLOCK(sc);
 547         }
 548         vap = &uvp->vap;
 549         /* enable s/w bmiss handling for sta mode */
 550
 551         if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
 552             flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
 553                 /* out of memory */
 554                 free(uvp, M_80211_VAP);
 555
 556                 RTWN_LOCK(sc);
 557                 rtwn_vap_decrement_counters(sc, opmode, id);
 558                 RTWN_UNLOCK(sc);
 559
 560                 return (NULL);
 561         }
 562
 563         rtwn_beacon_init(sc, &uvp->bcn_desc.txd[0], uvp->id);
 564         rtwn_vap_preattach(sc, vap);
 565
 566         /* override state transition machine */
 567         uvp->newstate = vap->iv_newstate;
 568         if (opmode == IEEE80211_M_MONITOR)
 569                 vap->iv_newstate = rtwn_monitor_newstate;
 570         else
 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;
 578
 579         /* 802.11n parameters */
 580         vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16;
 581         vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K;
 582
 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);
 589         }
 590
 591         /*
 592          * NB: driver can select net80211 RA even when user requests
 593          * another mechanism.
 594          */
 595         ieee80211_ratectl_init(vap);
 596
 597         /* complete setup */
 598         ieee80211_vap_attach(vap, ieee80211_media_change,
 599             ieee80211_media_status, mac);
 600
 601         RTWN_LOCK(sc);
 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);
 606
 607                 rtwn_rxfilter_update(sc);
 608         }
 609         RTWN_UNLOCK(sc);
 610
 611         return (vap);
 612
 613 fail:
 614         RTWN_UNLOCK(sc);
 615         return (NULL);
 616 }
 617
 618 static void
 619 rtwn_vap_delete(struct ieee80211vap *vap)
 620 {
 621         struct ieee80211com *ic = vap->iv_ic;
 622         struct rtwn_softc *sc = ic->ic_softc;
 623         struct rtwn_vap *uvp = RTWN_VAP(vap);
 624
 625         /* Put vap into INIT state + stop device if needed. */
 626         ieee80211_stop(vap);
 627         ieee80211_draintask(ic, &vap->iv_nstate_task);
 628         ieee80211_draintask(ic, &ic->ic_parent_task);
 629
 630         RTWN_LOCK(sc);
 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);
 639         RTWN_UNLOCK(sc);
 640
 641         if (vap->iv_opmode == IEEE80211_M_IBSS) {
 642                 ieee80211_draintask(ic, &uvp->tsf_sync_adhoc_task);
 643                 callout_drain(&uvp->tsf_sync_adhoc);
 644         }
 645
 646         ieee80211_ratectl_deinit(vap);
 647         ieee80211_vap_detach(vap);
 648         free(uvp, M_80211_VAP);
 649 }
 650
 651 static int
 652 rtwn_read_chipid(struct rtwn_softc *sc)
 653 {
 654         uint32_t reg;
 655
 656         reg = rtwn_read_4(sc, R92C_SYS_CFG);
 657         if (reg & R92C_SYS_CFG_TRP_VAUX_EN)     /* test chip */
 658                 return (EOPNOTSUPP);
 659
 660         rtwn_read_chipid_vendor(sc, reg);
 661
 662         return (0);
 663 }
 664
 665 static int
 666 rtwn_ioctl_reset(struct ieee80211vap *vap, u_long cmd)
 667 {
 668         int error;
 669
 670         switch (cmd) {
 671 #ifndef RTWN_WITHOUT_UCODE
 672         case IEEE80211_IOC_POWERSAVE:
 673         case IEEE80211_IOC_POWERSAVESLEEP:
 674         {
 675                 struct rtwn_softc *sc = vap->iv_ic->ic_softc;
 676                 struct rtwn_vap *uvp = RTWN_VAP(vap);
 677
 678                 if (vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
 679                         RTWN_LOCK(sc);
 680                         if (sc->sc_flags & RTWN_RUNNING)
 681                                 error = rtwn_set_pwrmode(sc, vap, 1);
 682                         else
 683                                 error = 0;
 684                         RTWN_UNLOCK(sc);
 685                         if (error != 0)
 686                                 error = ENETRESET;
 687                 } else
 688                         error = EOPNOTSUPP;
 689                 break;
 690         }
 691 #endif
 692         case IEEE80211_IOC_SHORTGI:
 693         case IEEE80211_IOC_RTSTHRESHOLD:
 694         case IEEE80211_IOC_PROTMODE:
 695         case IEEE80211_IOC_HTPROTMODE:
 696                 error = 0;
 697                 break;
 698         default:
 699                 error = ENETRESET;
 700                 break;
 701         }
 702
 703         return (error);
 704 }
 705
 706 #ifndef RTWN_WITHOUT_UCODE
 707 static void
 708 rtwn_set_media_status(struct rtwn_softc *sc, union sec_param *data)
 709 {
 710         sc->sc_set_media_status(sc, data->macid);
 711 }
 712
 713 static int
 714 rtwn_tx_fwpkt_check(struct rtwn_softc *sc, struct ieee80211vap *vap)
 715 {
 716         int ntries, error;
 717
 718         for (ntries = 0; ntries < 5; ntries++) {
 719                 error = rtwn_push_nulldata(sc, vap);
 720                 if (error == 0)
 721                         break;
 722         }
 723         if (ntries == 5) {
 724                 device_printf(sc->sc_dev,
 725                     "%s: cannot push f/w frames into chip, error %d!\n",
 726                     __func__, error);
 727                 return (error);
 728         }
 729
 730         return (0);
 731 }
 732
 733 static int
 734 rtwn_construct_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap,
 735     uint8_t *ptr, int qos)
 736 {
 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;
 741         int pktlen;
 742
 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);
 750
 751         txd = (struct rtwn_tx_desc_common *)ptr;
 752         txd->offset = sc->txdesc_len;
 753         pktlen = sc->txdesc_len;
 754         if (qos) {
 755                 struct ieee80211_qosframe *qwh;
 756                 const int tid = WME_AC_TO_TID(WME_AC_BE);
 757
 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;
 761
 762                 txd->pktlen = htole16(sizeof(struct ieee80211_qosframe));
 763                 pktlen += sizeof(struct ieee80211_qosframe);
 764         } else {
 765                 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA;
 766
 767                 txd->pktlen = htole16(sizeof(struct ieee80211_frame));
 768                 pktlen += sizeof(struct ieee80211_frame);
 769         }
 770
 771         rtwn_fill_tx_desc_null(sc, ptr,
 772             ic->ic_curmode == IEEE80211_MODE_11B, qos, uvp->id);
 773
 774         return (pktlen);
 775 }
 776
 777 static int
 778 rtwn_push_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap)
 779 {
 780         struct rtwn_vap *uvp = RTWN_VAP(vap);
 781         struct ieee80211com *ic = vap->iv_ic;
 782         struct ieee80211_channel *c = ic->ic_curchan;
 783         struct mbuf *m;
 784         uint8_t *ptr;
 785         int required_size, bcn_size, null_size, null_data, error;
 786
 787         if (!(sc->sc_flags & RTWN_FW_LOADED))
 788                 return (0);     /* requires firmware */
 789
 790         KASSERT(sc->page_size > 0, ("page size was not set!\n"));
 791
 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;
 796
 797         m = m_get2(required_size, M_NOWAIT, MT_DATA, M_PKTHDR);
 798         if (m == NULL)
 799                 return (ENOMEM);
 800
 801         /* Setup beacon descriptor. */
 802         rtwn_beacon_set_rate(sc, &uvp->bcn_desc.txd[0],
 803             IEEE80211_IS_CHAN_5GHZ(c));
 804
 805         ptr = mtod(m, uint8_t *);
 806         memset(ptr, 0, required_size - sc->txdesc_len);
 807
 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"));
 813
 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"));
 819
 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);
 824
 825         if (uvp->bcn_mbuf != NULL) {
 826                 rtwn_beacon_unload(sc, uvp->id);
 827                 m_freem(uvp->bcn_mbuf);
 828         }
 829
 830         m->m_pkthdr.len = m->m_len = required_size - sc->txdesc_len;
 831         uvp->bcn_mbuf = m;
 832
 833         error = rtwn_tx_beacon_check(sc, uvp);
 834         if (error != 0) {
 835                 RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON,
 836                     "%s: frame was not recognized!\n", __func__);
 837                 goto fail;
 838         }
 839
 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);
 843         if (error != 0) {
 844                 device_printf(sc->sc_dev,
 845                     "%s: CMD_RSVD_PAGE was not sent, error %d\n",
 846                     __func__, error);
 847                 goto fail;
 848         }
 849
 850 fail:
 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);
 855
 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];
 859
 860                 if (uvp2->curr_mode != R92C_MSR_NOLINK)
 861                         error = rtwn_tx_beacon_check(sc, uvp2);
 862         }
 863
 864         return (error);
 865 }
 866
 867 static void
 868 rtwn_pwrmode_init(void *arg)
 869 {
 870         struct rtwn_softc *sc = arg;
 871
 872         rtwn_cmd_sleepable(sc, NULL, 0, rtwn_set_pwrmode_cb);
 873 }
 874
 875 static void
 876 rtwn_set_pwrmode_cb(struct rtwn_softc *sc, union sec_param *data)
 877 {
 878         struct ieee80211vap *vap = &sc->vaps[0]->vap;
 879
 880         if (vap != NULL)
 881                 rtwn_set_pwrmode(sc, vap, 1);
 882 }
 883 #endif
 884
 885 static void
 886 rtwn_tsf_sync_adhoc(void *arg)
 887 {
 888         struct ieee80211vap *vap = arg;
 889         struct ieee80211com *ic = vap->iv_ic;
 890         struct rtwn_vap *uvp = RTWN_VAP(vap);
 891
 892         if (uvp->curr_mode != R92C_MSR_NOLINK) {
 893                 /* Do it in process context. */
 894                 ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
 895         }
 896 }
 897
 898 /*
 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).
 904  *
 905  * NOTE: there is no race with rtwn_newstate(), since it uses the same
 906  * taskqueue.
 907  */
 908 static void
 909 rtwn_tsf_sync_adhoc_task(void *arg, int pending)
 910 {
 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;
 915
 916         RTWN_LOCK(sc);
 917         ni = ieee80211_ref_node(vap->iv_bss);
 918
 919         /* Accept beacons with the same BSSID. */
 920         rtwn_set_rx_bssid_all(sc, 0);
 921
 922         /* Deny RCR updates. */
 923         sc->sc_flags |= RTWN_RCR_LOCKED;
 924
 925         /* Enable synchronization. */
 926         rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
 927             R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
 928
 929         /* Synchronize. */
 930         rtwn_delay(sc, ni->ni_intval * 5 * 1000);
 931
 932         /* Disable synchronization. */
 933         rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
 934             0, R92C_BCN_CTRL_DIS_TSF_UDT0);
 935
 936         /* Accept all beacons. */
 937         sc->sc_flags &= ~RTWN_RCR_LOCKED;
 938         rtwn_set_rx_bssid_all(sc, 1);
 939
 940         /* Schedule next TSF synchronization. */
 941         callout_reset(&uvp->tsf_sync_adhoc, 60*hz, rtwn_tsf_sync_adhoc, vap);
 942
 943         ieee80211_free_node(ni);
 944         RTWN_UNLOCK(sc);
 945 }
 946
 947 static void
 948 rtwn_tsf_sync_enable(struct rtwn_softc *sc, struct ieee80211vap *vap)
 949 {
 950         struct ieee80211com *ic = &sc->sc_ic;
 951         struct rtwn_vap *uvp = RTWN_VAP(vap);
 952
 953         /* Reset TSF. */
 954         rtwn_write_1(sc, R92C_DUAL_TSF_RST, R92C_DUAL_TSF_RESET(uvp->id));
 955
 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);
 961                 break;
 962         case IEEE80211_M_IBSS:
 963                 ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
 964                 /* FALLTHROUGH */
 965         case IEEE80211_M_HOSTAP:
 966                 /* Enable beaconing. */
 967                 rtwn_beacon_enable(sc, uvp->id, 1);
 968                 break;
 969         default:
 970                 device_printf(sc->sc_dev, "undefined opmode %d\n",
 971                     vap->iv_opmode);
 972                 return;
 973         }
 974 }
 975
 976 static void
 977 rtwn_set_ack_preamble(struct rtwn_softc *sc)
 978 {
 979         struct ieee80211com *ic = &sc->sc_ic;
 980         uint32_t reg;
 981
 982         reg = rtwn_read_4(sc, R92C_WMAC_TRXPTCL_CTL);
 983         if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
 984                 reg |= R92C_WMAC_TRXPTCL_SHPRE;
 985         else
 986                 reg &= ~R92C_WMAC_TRXPTCL_SHPRE;
 987         rtwn_write_4(sc, R92C_WMAC_TRXPTCL_CTL, reg);
 988 }
 989
 990 static void
 991 rtwn_set_mode(struct rtwn_softc *sc, uint8_t mode, int id)
 992 {
 993
 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;
 997 }
 998
 999 static int
1000 rtwn_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate,
1001     int arg)
1002 {
1003         struct ieee80211com *ic = vap->iv_ic;
1004         struct rtwn_softc *sc = ic->ic_softc;
1005         struct rtwn_vap *uvp = RTWN_VAP(vap);
1006
1007         RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
1008             ieee80211_state_name[vap->iv_state],
1009             ieee80211_state_name[nstate]);
1010
1011         if (vap->iv_state != nstate) {
1012                 IEEE80211_UNLOCK(ic);
1013                 RTWN_LOCK(sc);
1014
1015                 switch (nstate) {
1016                 case IEEE80211_S_INIT:
1017                         sc->vaps_running--;
1018                         sc->monvaps_running--;
1019
1020                         if (sc->vaps_running == 0) {
1021                                 /* Turn link LED off. */
1022                                 rtwn_set_led(sc, RTWN_LED_LINK, 0);
1023                         }
1024                         break;
1025                 case IEEE80211_S_RUN:
1026                         sc->vaps_running++;
1027                         sc->monvaps_running++;
1028
1029                         if (sc->vaps_running == 1) {
1030                                 /* Turn link LED on. */
1031                                 rtwn_set_led(sc, RTWN_LED_LINK, 1);
1032                         }
1033                         break;
1034                 default:
1035                         /* NOTREACHED */
1036                         break;
1037                 }
1038
1039                 RTWN_UNLOCK(sc);
1040                 IEEE80211_LOCK(ic);
1041         }
1042
1043         return (uvp->newstate(vap, nstate, arg));
1044 }
1045
1046 static int
1047 rtwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1048 {
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;
1054
1055         ostate = vap->iv_state;
1056         RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
1057             ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
1058
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);
1063                 if (error != 0)
1064                         return (error);
1065
1066                 early_newstate = 1;
1067         } else
1068                 early_newstate = 0;
1069
1070         IEEE80211_UNLOCK(ic);
1071         RTWN_LOCK(sc);
1072         if (ostate == IEEE80211_S_RUN) {
1073                 sc->vaps_running--;
1074
1075                 /* Set media status to 'No Link'. */
1076                 rtwn_set_mode(sc, R92C_MSR_NOLINK, uvp->id);
1077
1078                 if (vap->iv_opmode == IEEE80211_M_IBSS) {
1079                         /* Stop periodical TSF synchronization. */
1080                         callout_stop(&uvp->tsf_sync_adhoc);
1081                 }
1082
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);
1087
1088                 /* NB: monitor mode vaps are using port 0. */
1089                 if (uvp->id != 0 || sc->monvaps_running == 0) {
1090                         /* Reset TSF. */
1091                         rtwn_write_1(sc, R92C_DUAL_TSF_RST,
1092                             R92C_DUAL_TSF_RESET(uvp->id));
1093                 }
1094
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);
1100                 }
1101 #endif
1102                 if (sc->vaps_running - sc->monvaps_running > 0) {
1103                         /* Recalculate basic rates bitmap. */
1104                         rtwn_calc_basicrates(sc);
1105                 }
1106
1107                 if (sc->vaps_running == sc->monvaps_running) {
1108                         /* Stop calibration. */
1109                         callout_stop(&sc->sc_calib_to);
1110
1111                         /* Stop Rx of data frames. */
1112                         rtwn_write_2(sc, R92C_RXFLTMAP2, 0);
1113
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);
1119
1120                         if (sc->vaps_running == 0) {
1121                                 /* Turn link LED off. */
1122                                 rtwn_set_led(sc, RTWN_LED_LINK, 0);
1123                         }
1124                 }
1125         }
1126
1127         error = 0;
1128         switch (nstate) {
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);
1133                 break;
1134         case IEEE80211_S_RUN:
1135                 error = rtwn_run(sc, vap);
1136                 if (error != 0) {
1137                         device_printf(sc->sc_dev,
1138                             "%s: could not move to RUN state\n", __func__);
1139                         break;
1140                 }
1141
1142                 sc->vaps_running++;
1143                 break;
1144         default:
1145                 break;
1146         }
1147
1148         RTWN_UNLOCK(sc);
1149         IEEE80211_LOCK(ic);
1150         if (error != 0)
1151                 return (error);
1152
1153         return (early_newstate ? 0 : uvp->newstate(vap, nstate, arg));
1154 }
1155
1156 static void
1157 rtwn_calc_basicrates(struct rtwn_softc *sc)
1158 {
1159         struct ieee80211com *ic = &sc->sc_ic;
1160         uint32_t basicrates;
1161         int i;
1162
1163         RTWN_ASSERT_LOCKED(sc);
1164
1165         if (ic->ic_flags & IEEE80211_F_SCAN)
1166                 return;         /* will be done by rtwn_scan_end(). */
1167
1168         basicrates = 0;
1169         for (i = 0; i < nitems(sc->vaps); i++) {
1170                 struct rtwn_vap *rvp;
1171                 struct ieee80211vap *vap;
1172                 struct ieee80211_node *ni;
1173                 uint32_t rates;
1174
1175                 rvp = sc->vaps[i];
1176                 if (rvp == NULL || rvp->curr_mode == R92C_MSR_NOLINK)
1177                         continue;
1178
1179                 vap = &rvp->vap;
1180                 if (vap->iv_bss == NULL)
1181                         continue;
1182
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);
1187         }
1188
1189         if (basicrates == 0)
1190                 return;
1191
1192         /* XXX initial RTS rate? */
1193         rtwn_set_basicrates(sc, basicrates);
1194 }
1195
1196 static int
1197 rtwn_run(struct rtwn_softc *sc, struct ieee80211vap *vap)
1198 {
1199         struct ieee80211com *ic = vap->iv_ic;
1200         struct rtwn_vap *uvp = RTWN_VAP(vap);
1201         struct ieee80211_node *ni;
1202         uint8_t mode;
1203         int error;
1204
1205         RTWN_ASSERT_LOCKED(sc);
1206
1207         error = 0;
1208         ni = ieee80211_ref_node(vap->iv_bss);
1209
1210         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1211             ni->ni_chan == IEEE80211_CHAN_ANYC) {
1212                 error = EINVAL;
1213                 goto fail;
1214         }
1215
1216         switch (vap->iv_opmode) {
1217         case IEEE80211_M_STA:
1218                 mode = R92C_MSR_INFRA;
1219                 break;
1220         case IEEE80211_M_IBSS:
1221                 mode = R92C_MSR_ADHOC;
1222                 break;
1223         case IEEE80211_M_HOSTAP:
1224                 mode = R92C_MSR_AP;
1225                 break;
1226         default:
1227                 KASSERT(0, ("undefined opmode %d\n", vap->iv_opmode));
1228                 error = EINVAL;
1229                 goto fail;
1230         }
1231
1232         /* Set media status to 'Associated'. */
1233         rtwn_set_mode(sc, mode, uvp->id);
1234
1235         /* Set AssocID. */
1236         /* XXX multi-vap? */
1237         rtwn_write_2(sc, R92C_BCN_PSR_RPT,
1238             0xc000 | IEEE80211_NODE_AID(ni));
1239
1240         /* Set BSSID. */
1241         rtwn_set_bssid(sc, ni->ni_bssid, uvp->id);
1242
1243         /* Set beacon interval. */
1244         rtwn_write_2(sc, R92C_BCN_INTERVAL(uvp->id), ni->ni_intval);
1245
1246         if (sc->vaps_running == sc->monvaps_running) {
1247                 /* Enable Rx of data frames. */
1248                 rtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff);
1249
1250                 /* Flush all AC queues. */
1251                 rtwn_write_1(sc, R92C_TXPAUSE, 0);
1252         }
1253
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);
1260                 if (error != 0)
1261                         goto fail;
1262
1263                 /* Setup power management. */
1264                 /*
1265                  * NB: it will be enabled immediately - delay it,
1266                  * so 4-Way handshake will not be interrupted.
1267                  */
1268                 callout_reset(&sc->sc_pwrmode_init, 5*hz,
1269                     rtwn_pwrmode_init, sc);
1270         }
1271 #endif
1272
1273         /* Enable TSF synchronization. */
1274         rtwn_tsf_sync_enable(sc, vap);
1275
1276         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1277             vap->iv_opmode == IEEE80211_M_IBSS) {
1278                 error = rtwn_setup_beacon(sc, ni);
1279                 if (error != 0) {
1280                         device_printf(sc->sc_dev,
1281                             "unable to push beacon into the chip, "
1282                             "error %d\n", error);
1283                         goto fail;
1284                 }
1285         }
1286
1287         /* Set ACK preamble type. */
1288         rtwn_set_ack_preamble(sc);
1289
1290         /* Set basic rates mask. */
1291         rtwn_calc_basicrates(sc);
1292
1293 #ifdef RTWN_TODO
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);
1300 #endif
1301
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;
1306
1307                 /* Start periodic calibration. */
1308                 callout_reset(&sc->sc_calib_to, 2*hz, rtwn_calib_to,
1309                     sc);
1310
1311                 if (sc->vaps_running == 0) {
1312                         /* Turn link LED on. */
1313                         rtwn_set_led(sc, RTWN_LED_LINK, 1);
1314                 }
1315         }
1316
1317 fail:
1318         ieee80211_free_node(ni);
1319
1320         return (error);
1321 }
1322
1323 #ifndef D4054
1324 static void
1325 rtwn_watchdog(void *arg)
1326 {
1327         struct rtwn_softc *sc = arg;
1328         struct ieee80211com *ic = &sc->sc_ic;
1329
1330         RTWN_ASSERT_LOCKED(sc);
1331
1332         KASSERT(sc->sc_flags & RTWN_RUNNING, ("not running"));
1333
1334         if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) {
1335                 ic_printf(ic, "device timeout\n");
1336                 ieee80211_restart_all(ic);
1337                 return;
1338         }
1339         callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
1340 }
1341 #endif
1342
1343 static void
1344 rtwn_parent(struct ieee80211com *ic)
1345 {
1346         struct rtwn_softc *sc = ic->ic_softc;
1347         struct ieee80211vap *vap;
1348
1349         if (ic->ic_nrunning > 0) {
1350                 if (rtwn_init(sc) != 0) {
1351                         IEEE80211_LOCK(ic);
1352                         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
1353                                 ieee80211_stop_locked(vap);
1354                         IEEE80211_UNLOCK(ic);
1355                 } else
1356                         ieee80211_start_all(ic);
1357         } else
1358                 rtwn_stop(sc);
1359 }
1360
1361
1362 static int
1363 rtwn_llt_write(struct rtwn_softc *sc, uint32_t addr, uint32_t data)
1364 {
1365         int ntries, error;
1366
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));
1371         if (error != 0)
1372                 return (error);
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)
1377                         return (0);
1378                 rtwn_delay(sc, 10);
1379         }
1380         return (ETIMEDOUT);
1381 }
1382
1383 static int
1384 rtwn_llt_init(struct rtwn_softc *sc)
1385 {
1386         int i, error;
1387
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)
1391                         return (error);
1392         }
1393         /* NB: 0xff indicates end-of-list. */
1394         if ((error = rtwn_llt_write(sc, i, 0xff)) != 0)
1395                 return (error);
1396         /*
1397          * Use pages [page_count + 1; pktbuf_count - 1]
1398          * as ring buffer.
1399          */
1400         for (++i; i < sc->pktbuf_count - 1; i++) {
1401                 if ((error = rtwn_llt_write(sc, i, i + 1)) != 0)
1402                         return (error);
1403         }
1404         /* Make the last page point to the beginning of the ring buffer. */
1405         error = rtwn_llt_write(sc, i, sc->page_count + 1);
1406         return (error);
1407 }
1408
1409 static int
1410 rtwn_dma_init(struct rtwn_softc *sc)
1411 {
1412 #define RTWN_CHK(res) do {      \
1413         if (res != 0)           \
1414                 return (EIO);   \
1415 } while(0)
1416         uint16_t reg;
1417         uint8_t tx_boundary;
1418         int error;
1419
1420         /* Initialize LLT table. */
1421         error = rtwn_llt_init(sc);
1422         if (error != 0)
1423                 return (error);
1424
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,
1429             sc->npubqpages);
1430
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) |
1439             /* Load values. */
1440             R92C_RQPN_LD));
1441
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));
1451
1452         error = rtwn_init_bcnq1_boundary(sc);
1453         if (error != 0)
1454                 return (error);
1455
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));
1461
1462         /* Configure Tx/Rx DMA (PCIe). */
1463         rtwn_set_desc_addr(sc);
1464
1465         /* Set Tx/Rx transfer page boundary. */
1466         RTWN_CHK(rtwn_write_2(sc, R92C_TRXFF_BNDY + 2,
1467             sc->rx_dma_size - 1));
1468
1469         /* Set Tx/Rx transfer page size. */
1470         rtwn_set_page_size(sc);
1471
1472         return (0);
1473 }
1474
1475 static int
1476 rtwn_mac_init(struct rtwn_softc *sc)
1477 {
1478         int i, error;
1479
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);
1484                 if (error != 0)
1485                         return (error);
1486         }
1487
1488         return (0);
1489 }
1490
1491 static void
1492 rtwn_mrr_init(struct rtwn_softc *sc)
1493 {
1494         int i;
1495
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);
1500         }
1501 }
1502
1503 static void
1504 rtwn_scan_start(struct ieee80211com *ic)
1505 {
1506         struct rtwn_softc *sc = ic->ic_softc;
1507
1508         RTWN_LOCK(sc);
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);
1514         RTWN_UNLOCK(sc);
1515 }
1516
1517 static void
1518 rtwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
1519 {
1520         struct rtwn_softc *sc = ss->ss_ic->ic_softc;
1521
1522         /* Make link LED blink during scan. */
1523         RTWN_LOCK(sc);
1524         rtwn_set_led(sc, RTWN_LED_LINK, !sc->ledlink);
1525         RTWN_UNLOCK(sc);
1526
1527         sc->sc_scan_curchan(ss, maxdwell);
1528 }
1529
1530 static void
1531 rtwn_scan_end(struct ieee80211com *ic)
1532 {
1533         struct rtwn_softc *sc = ic->ic_softc;
1534
1535         RTWN_LOCK(sc);
1536         /* Restore limitations. */
1537         if (ic->ic_promisc == 0 && sc->bcn_vaps == 0)
1538                 rtwn_set_rx_bssid_all(sc, 0);
1539
1540         /* Restore LED state. */
1541         rtwn_set_led(sc, RTWN_LED_LINK, (sc->vaps_running != 0));
1542
1543         /* Restore basic rates mask. */
1544         rtwn_calc_basicrates(sc);
1545
1546         /* Resume beaconing. */
1547         rtwn_setbits_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_BCN, 0);
1548         RTWN_UNLOCK(sc);
1549 }
1550
1551 static void
1552 rtwn_getradiocaps(struct ieee80211com *ic,
1553     int maxchans, int *nchans, struct ieee80211_channel chans[])
1554 {
1555         struct rtwn_softc *sc = ic->ic_softc;
1556         uint8_t bands[IEEE80211_MODE_BYTES];
1557         int i;
1558
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));
1566
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)
1572                         continue;
1573
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));
1577         }
1578 }
1579
1580 static void
1581 rtwn_update_chw(struct ieee80211com *ic)
1582 {
1583 }
1584
1585 static void
1586 rtwn_set_channel(struct ieee80211com *ic)
1587 {
1588         struct rtwn_softc *sc = ic->ic_softc;
1589         struct ieee80211_channel *c = ic->ic_curchan;
1590
1591         RTWN_LOCK(sc);
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);
1597         RTWN_UNLOCK(sc);
1598 }
1599
1600 static int
1601 rtwn_wme_update(struct ieee80211com *ic)
1602 {
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;
1607         int ac;
1608
1609         /* Prevent possible races. */
1610         IEEE80211_LOCK(ic);     /* XXX */
1611         RTWN_LOCK(sc);
1612         memcpy(wmep, ic->ic_wme.wme_chanParams.cap_wmeParams,
1613             sizeof(sc->cap_wmeParams));
1614         RTWN_UNLOCK(sc);
1615         IEEE80211_UNLOCK(ic);
1616
1617         acm = 0;
1618         slottime = IEEE80211_GET_SLOTTIME(ic);
1619
1620         RTWN_LOCK(sc);
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;
1633         }
1634
1635         if (acm != 0)
1636                 acm |= R92C_ACMHWCTRL_EN;
1637         rtwn_setbits_1(sc, R92C_ACMHWCTRL, R92C_ACMHWCTRL_ACM_MASK, acm);
1638         RTWN_UNLOCK(sc);
1639
1640         return 0;
1641 }
1642
1643 static void
1644 rtwn_update_slot(struct ieee80211com *ic)
1645 {
1646         rtwn_cmd_sleepable(ic->ic_softc, NULL, 0, rtwn_update_slot_cb);
1647 }
1648
1649 static void
1650 rtwn_update_slot_cb(struct rtwn_softc *sc, union sec_param *data)
1651 {
1652         struct ieee80211com *ic = &sc->sc_ic;
1653         uint8_t slottime;
1654
1655         slottime = IEEE80211_GET_SLOTTIME(ic);
1656
1657         RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s: setting slot time to %uus\n",
1658             __func__, slottime);
1659
1660         rtwn_write_1(sc, R92C_SLOT, slottime);
1661         rtwn_update_aifs(sc, slottime);
1662 }
1663
1664 static void
1665 rtwn_update_aifs(struct rtwn_softc *sc, uint8_t slottime)
1666 {
1667         struct ieee80211_channel *c = sc->sc_ic.ic_curchan;
1668         const struct wmeParams *wmep = sc->cap_wmeParams;
1669         uint8_t aifs, ac;
1670
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);
1677         }
1678 }
1679
1680 static void
1681 rtwn_update_promisc(struct ieee80211com *ic)
1682 {
1683         struct rtwn_softc *sc = ic->ic_softc;
1684
1685         RTWN_LOCK(sc);
1686         if (sc->sc_flags & RTWN_RUNNING)
1687                 rtwn_set_promisc(sc);
1688         RTWN_UNLOCK(sc);
1689 }
1690
1691 static void
1692 rtwn_update_mcast(struct ieee80211com *ic)
1693 {
1694         struct rtwn_softc *sc = ic->ic_softc;
1695
1696         RTWN_LOCK(sc);
1697         if (sc->sc_flags & RTWN_RUNNING)
1698                 rtwn_set_multi(sc);
1699         RTWN_UNLOCK(sc);
1700 }
1701
1702 static int
1703 rtwn_set_bssid(struct rtwn_softc *sc, const uint8_t *bssid, int id)
1704 {
1705         int error;
1706
1707         error = rtwn_write_4(sc, R92C_BSSID(id), le32dec(&bssid[0]));
1708         if (error != 0)
1709                 return (error);
1710         error = rtwn_write_2(sc, R92C_BSSID(id) + 4, le16dec(&bssid[4]));
1711
1712         return (error);
1713 }
1714
1715 static int
1716 rtwn_set_macaddr(struct rtwn_softc *sc, const uint8_t *addr, int id)
1717 {
1718         int error;
1719
1720         error = rtwn_write_4(sc, R92C_MACID(id), le32dec(&addr[0]));
1721         if (error != 0)
1722                 return (error);
1723         error = rtwn_write_2(sc, R92C_MACID(id) + 4, le16dec(&addr[4]));
1724
1725         return (error);
1726 }
1727
1728 static struct ieee80211_node *
1729 rtwn_node_alloc(struct ieee80211vap *vap,
1730     const uint8_t mac[IEEE80211_ADDR_LEN])
1731 {
1732         struct rtwn_node *un;
1733
1734         un = malloc(sizeof (struct rtwn_node), M_80211_NODE,
1735             M_NOWAIT | M_ZERO);
1736
1737         if (un == NULL)
1738                 return NULL;
1739
1740         un->id = RTWN_MACID_UNDEFINED;
1741         un->avg_pwdb = -1;
1742
1743         return &un->ni;
1744 }
1745
1746 static void
1747 rtwn_newassoc(struct ieee80211_node *ni, int isnew)
1748 {
1749         struct rtwn_softc *sc = ni->ni_ic->ic_softc;
1750         struct rtwn_node *un = RTWN_NODE(ni);
1751         int id;
1752
1753         if (!isnew)
1754                 return;
1755
1756         RTWN_NT_LOCK(sc);
1757         for (id = 0; id <= sc->macid_limit; id++) {
1758                 if (id != RTWN_MACID_BC && sc->node_list[id] == NULL) {
1759                         un->id = id;
1760                         sc->node_list[id] = ni;
1761                         break;
1762                 }
1763         }
1764         RTWN_NT_UNLOCK(sc);
1765
1766         if (id > sc->macid_limit) {
1767                 device_printf(sc->sc_dev, "%s: node table is full\n",
1768                     __func__);
1769                 return;
1770         }
1771
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);
1776 #endif
1777 }
1778
1779 static void
1780 rtwn_node_free(struct ieee80211_node *ni)
1781 {
1782         struct rtwn_softc *sc = ni->ni_ic->ic_softc;
1783         struct rtwn_node *un = RTWN_NODE(ni);
1784
1785         RTWN_NT_LOCK(sc);
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);
1791 #endif
1792         }
1793         RTWN_NT_UNLOCK(sc);
1794
1795         sc->sc_node_free(ni);
1796 }
1797
1798 static void
1799 rtwn_init_beacon_reg(struct rtwn_softc *sc)
1800 {
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);
1807 }
1808
1809 static int
1810 rtwn_init(struct rtwn_softc *sc)
1811 {
1812         struct ieee80211com *ic = &sc->sc_ic;
1813         int i, error;
1814
1815         RTWN_LOCK(sc);
1816         if (sc->sc_flags & RTWN_RUNNING) {
1817                 RTWN_UNLOCK(sc);
1818                 return (0);
1819         }
1820         sc->sc_flags |= RTWN_STARTED;
1821
1822         /* Power on adapter. */
1823         error = rtwn_power_on(sc);
1824         if (error != 0)
1825                 goto fail;
1826
1827 #ifndef RTWN_WITHOUT_UCODE
1828         /* Load 8051 microcode. */
1829         error = rtwn_load_firmware(sc);
1830         if (error == 0)
1831                 sc->sc_flags |= RTWN_FW_LOADED;
1832
1833         /* Init firmware commands ring. */
1834         sc->fwcur = 0;
1835 #endif
1836
1837         /* Initialize MAC block. */
1838         error = rtwn_mac_init(sc);
1839         if (error != 0) {
1840                 device_printf(sc->sc_dev,
1841                     "%s: error while initializing MAC block\n", __func__);
1842                 goto fail;
1843         }
1844
1845         /* Initialize DMA. */
1846         error = rtwn_dma_init(sc);
1847         if (error != 0)
1848                 goto fail;
1849
1850         /* Drop incorrect TX (USB). */
1851         rtwn_drop_incorrect_tx(sc);
1852
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);
1855
1856         /* Init interrupts. */
1857         rtwn_init_intr(sc);
1858
1859         for (i = 0; i < nitems(sc->vaps); i++) {
1860                 struct rtwn_vap *uvp = sc->vaps[i];
1861
1862                 /* Set initial network type. */
1863                 rtwn_set_mode(sc, R92C_MSR_NOLINK, i);
1864
1865                 if (uvp == NULL)
1866                         continue;
1867
1868                 /* Set MAC address. */
1869                 error = rtwn_set_macaddr(sc, uvp->vap.iv_myaddr, uvp->id);
1870                 if (error != 0)
1871                         goto fail;
1872         }
1873
1874         /* Initialize Rx filter. */
1875         rtwn_rxfilter_init(sc);
1876
1877         /* Set short/long retry limits. */
1878         rtwn_write_2(sc, R92C_RL,
1879             SM(R92C_RL_SRL, 0x30) | SM(R92C_RL_LRL, 0x30));
1880
1881         /* Initialize EDCA parameters. */
1882         rtwn_init_edca(sc);
1883
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);
1888
1889         /* Setup aggregation. */
1890         /* Tx aggregation. */
1891         rtwn_init_tx_agg(sc);
1892         rtwn_init_rx_agg(sc);
1893
1894         /* Initialize beacon parameters. */
1895         rtwn_init_beacon_reg(sc);
1896
1897         /* Init A-MPDU parameters. */
1898         rtwn_init_ampdu(sc);
1899
1900         /* Init MACTXEN / MACRXEN after setting RxFF boundary. */
1901         rtwn_setbits_1(sc, R92C_CR, 0, R92C_CR_MACTXEN | R92C_CR_MACRXEN);
1902
1903         /* Initialize BB/RF blocks. */
1904         rtwn_init_bb(sc);
1905         rtwn_init_rf(sc);
1906
1907         /* Initialize wireless band. */
1908         rtwn_set_chan(sc, ic->ic_curchan);
1909
1910         /* Clear per-station keys table. */
1911         rtwn_init_cam(sc);
1912
1913         /* Enable decryption / encryption. */
1914         rtwn_init_seccfg(sc);
1915
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]);
1920                         if (error != 0)
1921                                 goto fail;
1922                 }
1923         }
1924
1925         /* Initialize antenna selection. */
1926         rtwn_init_antsel(sc);
1927
1928         /* Enable hardware sequence numbering. */
1929         rtwn_write_1(sc, R92C_HWSEQ_CTRL, R92C_TX_QUEUE_ALL);
1930
1931         /* Disable BAR. */
1932         rtwn_write_4(sc, R92C_BAR_MODE_CTRL, 0x0201ffff);
1933
1934         /* NAV limit. */
1935         rtwn_write_1(sc, R92C_NAV_UPPER, 0);
1936
1937         /* Initialize GPIO setting. */
1938         rtwn_setbits_1(sc, R92C_GPIO_MUXCFG, R92C_GPIO_MUXCFG_ENBT, 0);
1939
1940         /* Initialize MRR. */
1941         rtwn_mrr_init(sc);
1942
1943         /* Device-specific post initialization. */
1944         rtwn_post_init(sc);
1945
1946         rtwn_start_xfers(sc);
1947
1948 #ifndef D4054
1949         callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
1950 #endif
1951
1952         sc->sc_flags |= RTWN_RUNNING;
1953 fail:
1954         RTWN_UNLOCK(sc);
1955
1956         return (error);
1957 }
1958
1959 static void
1960 rtwn_stop(struct rtwn_softc *sc)
1961 {
1962
1963         RTWN_LOCK(sc);
1964         if (!(sc->sc_flags & RTWN_STARTED)) {
1965                 RTWN_UNLOCK(sc);
1966                 return;
1967         }
1968
1969 #ifndef D4054
1970         callout_stop(&sc->sc_watchdog_to);
1971         sc->sc_tx_timer = 0;
1972 #endif
1973         sc->sc_flags &= ~(RTWN_STARTED | RTWN_RUNNING | RTWN_FW_LOADED);
1974         sc->sc_flags &= ~RTWN_TEMP_MEASURED;
1975         sc->fwver = 0;
1976         sc->thcal_temp = 0;
1977         sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
1978
1979 #ifdef D4054
1980         ieee80211_tx_watchdog_stop(&sc->sc_ic);
1981 #endif
1982
1983         rtwn_abort_xfers(sc);
1984         rtwn_drain_mbufq(sc);
1985         rtwn_power_off(sc);
1986         rtwn_reset_lists(sc, NULL);
1987         RTWN_UNLOCK(sc);
1988 }
1989
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);
1994 #endif