1 /*- 2 * Copyright (c) 2007 3 * Damien Bergamini <damien.bergamini@free.fr> 4 * Copyright (c) 2008 5 * Benjamin Close <benjsc@FreeBSD.org> 6 * Copyright (c) 2008 Sam Leffler, Errno Consulting 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 /* 22 * Driver for Intel Wireless WiFi Link 4965AGN 802.11 network adapters. 23 */ 24 25 #include <sys/cdefs.h> 26 __FBSDID("$FreeBSD$"); 27 28 #include <sys/param.h> 29 #include <sys/sockio.h> 30 #include <sys/sysctl.h> 31 #include <sys/mbuf.h> 32 #include <sys/kernel.h> 33 #include <sys/socket.h> 34 #include <sys/systm.h> 35 #include <sys/malloc.h> 36 #include <sys/bus.h> 37 #include <sys/rman.h> 38 #include <sys/endian.h> 39 #include <sys/firmware.h> 40 #include <sys/limits.h> 41 #include <sys/module.h> 42 #include <sys/queue.h> 43 #include <sys/taskqueue.h> 44 45 #include <machine/bus.h> 46 #include <machine/resource.h> 47 #include <machine/clock.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 52 #include <net/bpf.h> 53 #include <net/if.h> 54 #include <net/if_arp.h> 55 #include <net/ethernet.h> 56 #include <net/if_dl.h> 57 #include <net/if_media.h> 58 #include <net/if_types.h> 59 60 #include <netinet/in.h> 61 #include <netinet/in_systm.h> 62 #include <netinet/in_var.h> 63 #include <netinet/if_ether.h> 64 #include <netinet/ip.h> 65 66 #include <net80211/ieee80211_var.h> 67 #include <net80211/ieee80211_amrr.h> 68 #include <net80211/ieee80211_radiotap.h> 69 #include <net80211/ieee80211_regdomain.h> 70 71 #include <dev/iwn/if_iwnreg.h> 72 #include <dev/iwn/if_iwnvar.h> 73 74 static int iwn_probe(device_t); 75 static int iwn_attach(device_t); 76 static int iwn_detach(device_t); 77 static int iwn_cleanup(device_t); 78 static struct ieee80211vap *iwn_vap_create(struct ieee80211com *, 79 const char name[IFNAMSIZ], int unit, int opmode, 80 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 81 const uint8_t mac[IEEE80211_ADDR_LEN]); 82 static void iwn_vap_delete(struct ieee80211vap *); 83 static int iwn_shutdown(device_t); 84 static int iwn_suspend(device_t); 85 static int iwn_resume(device_t); 86 static int iwn_dma_contig_alloc(struct iwn_softc *, struct iwn_dma_info *, 87 void **, bus_size_t, bus_size_t, int); 88 static void iwn_dma_contig_free(struct iwn_dma_info *); 89 int iwn_alloc_shared(struct iwn_softc *); 90 void iwn_free_shared(struct iwn_softc *); 91 int iwn_alloc_kw(struct iwn_softc *); 92 void iwn_free_kw(struct iwn_softc *); 93 int iwn_alloc_fwmem(struct iwn_softc *); 94 void iwn_free_fwmem(struct iwn_softc *); 95 struct iwn_rbuf *iwn_alloc_rbuf(struct iwn_softc *); 96 void iwn_free_rbuf(void *, void *); 97 int iwn_alloc_rpool(struct iwn_softc *); 98 void iwn_free_rpool(struct iwn_softc *); 99 int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 100 void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 101 void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 102 int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *, 103 int); 104 void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 105 void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 106 static struct ieee80211_node *iwn_node_alloc(struct ieee80211vap *, 107 const uint8_t [IEEE80211_ADDR_LEN]); 108 void iwn_newassoc(struct ieee80211_node *, int); 109 int iwn_media_change(struct ifnet *); 110 int iwn_newstate(struct ieee80211vap *, enum ieee80211_state, int); 111 void iwn_mem_lock(struct iwn_softc *); 112 void iwn_mem_unlock(struct iwn_softc *); 113 uint32_t iwn_mem_read(struct iwn_softc *, uint32_t); 114 void iwn_mem_write(struct iwn_softc *, uint32_t, uint32_t); 115 void iwn_mem_write_region_4(struct iwn_softc *, uint32_t, 116 const uint32_t *, int); 117 int iwn_eeprom_lock(struct iwn_softc *); 118 void iwn_eeprom_unlock(struct iwn_softc *); 119 int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int); 120 int iwn_transfer_microcode(struct iwn_softc *, const uint8_t *, int); 121 int iwn_transfer_firmware(struct iwn_softc *); 122 int iwn_load_firmware(struct iwn_softc *); 123 void iwn_unload_firmware(struct iwn_softc *); 124 static void iwn_timer_timeout(void *); 125 static void iwn_calib_reset(struct iwn_softc *); 126 void iwn_ampdu_rx_start(struct iwn_softc *, struct iwn_rx_desc *); 127 void iwn_rx_intr(struct iwn_softc *, struct iwn_rx_desc *, 128 struct iwn_rx_data *); 129 void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *); 130 void iwn_tx_intr(struct iwn_softc *, struct iwn_rx_desc *); 131 void iwn_cmd_intr(struct iwn_softc *, struct iwn_rx_desc *); 132 void iwn_notif_intr(struct iwn_softc *); 133 void iwn_intr(void *); 134 void iwn_read_eeprom(struct iwn_softc *, 135 uint8_t macaddr[IEEE80211_ADDR_LEN]); 136 static void iwn_read_eeprom_channels(struct iwn_softc *); 137 void iwn_print_power_group(struct iwn_softc *, int); 138 uint8_t iwn_plcp_signal(int); 139 int iwn_tx_data(struct iwn_softc *, struct mbuf *, 140 struct ieee80211_node *, struct iwn_tx_ring *); 141 void iwn_start(struct ifnet *); 142 void iwn_start_locked(struct ifnet *); 143 static int iwn_raw_xmit(struct ieee80211_node *, struct mbuf *, 144 const struct ieee80211_bpf_params *); 145 static void iwn_watchdog(struct iwn_softc *); 146 int iwn_ioctl(struct ifnet *, u_long, caddr_t); 147 int iwn_cmd(struct iwn_softc *, int, const void *, int, int); 148 int iwn_set_link_quality(struct iwn_softc *, uint8_t, 149 const struct ieee80211_channel *, int); 150 int iwn_set_key(struct ieee80211com *, struct ieee80211_node *, 151 const struct ieee80211_key *); 152 int iwn_wme_update(struct ieee80211com *); 153 void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t); 154 int iwn_set_critical_temp(struct iwn_softc *); 155 void iwn_enable_tsf(struct iwn_softc *, struct ieee80211_node *); 156 void iwn_power_calibration(struct iwn_softc *, int); 157 int iwn_set_txpower(struct iwn_softc *, 158 struct ieee80211_channel *, int); 159 int8_t iwn_get_rssi(struct iwn_softc *, const struct iwn_rx_stat *); 160 int iwn_get_noise(const struct iwn_rx_general_stats *); 161 int iwn_get_temperature(struct iwn_softc *); 162 int iwn_init_sensitivity(struct iwn_softc *); 163 void iwn_compute_differential_gain(struct iwn_softc *, 164 const struct iwn_rx_general_stats *); 165 void iwn_tune_sensitivity(struct iwn_softc *, 166 const struct iwn_rx_stats *); 167 int iwn_send_sensitivity(struct iwn_softc *); 168 int iwn_auth(struct iwn_softc *, struct ieee80211vap *); 169 int iwn_run(struct iwn_softc *, struct ieee80211vap *); 170 int iwn_scan(struct iwn_softc *); 171 int iwn_config(struct iwn_softc *); 172 void iwn_post_alive(struct iwn_softc *); 173 void iwn_stop_master(struct iwn_softc *); 174 int iwn_reset(struct iwn_softc *); 175 void iwn_hw_config(struct iwn_softc *); 176 void iwn_init_locked(struct iwn_softc *); 177 void iwn_init(void *); 178 void iwn_stop_locked(struct iwn_softc *); 179 void iwn_stop(struct iwn_softc *); 180 static void iwn_scan_start(struct ieee80211com *); 181 static void iwn_scan_end(struct ieee80211com *); 182 static void iwn_set_channel(struct ieee80211com *); 183 static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long); 184 static void iwn_scan_mindwell(struct ieee80211_scan_state *); 185 static void iwn_hwreset(void *, int); 186 static void iwn_radioon(void *, int); 187 static void iwn_radiooff(void *, int); 188 static void iwn_sysctlattach(struct iwn_softc *); 189 190 #define IWN_DEBUG 191 #ifdef IWN_DEBUG 192 enum { 193 IWN_DEBUG_XMIT = 0x00000001, /* basic xmit operation */ 194 IWN_DEBUG_RECV = 0x00000002, /* basic recv operation */ 195 IWN_DEBUG_STATE = 0x00000004, /* 802.11 state transitions */ 196 IWN_DEBUG_TXPOW = 0x00000008, /* tx power processing */ 197 IWN_DEBUG_RESET = 0x00000010, /* reset processing */ 198 IWN_DEBUG_OPS = 0x00000020, /* iwn_ops processing */ 199 IWN_DEBUG_BEACON = 0x00000040, /* beacon handling */ 200 IWN_DEBUG_WATCHDOG = 0x00000080, /* watchdog timeout */ 201 IWN_DEBUG_INTR = 0x00000100, /* ISR */ 202 IWN_DEBUG_CALIBRATE = 0x00000200, /* periodic calibration */ 203 IWN_DEBUG_NODE = 0x00000400, /* node management */ 204 IWN_DEBUG_LED = 0x00000800, /* led management */ 205 IWN_DEBUG_CMD = 0x00001000, /* cmd submission */ 206 IWN_DEBUG_FATAL = 0x80000000, /* fatal errors */ 207 IWN_DEBUG_ANY = 0xffffffff 208 }; 209 210 #define DPRINTF(sc, m, fmt, ...) do { \ 211 if (sc->sc_debug & (m)) \ 212 printf(fmt, __VA_ARGS__); \ 213 } while (0) 214 215 static const char *iwn_intr_str(uint8_t); 216 #else 217 #define DPRINTF(sc, m, fmt, ...) do { (void) sc; } while (0) 218 #endif 219 220 struct iwn_ident { 221 uint16_t vendor; 222 uint16_t device; 223 const char *name; 224 }; 225 226 static const struct iwn_ident iwn_ident_table [] = { 227 { 0x8086, 0x4229, "Intel(R) PRO/Wireless 4965BGN" }, 228 { 0x8086, 0x422D, "Intel(R) PRO/Wireless 4965BGN" }, 229 { 0x8086, 0x4230, "Intel(R) PRO/Wireless 4965BGN" }, 230 { 0x8086, 0x4233, "Intel(R) PRO/Wireless 4965BGN" }, 231 { 0, 0, NULL } 232 }; 233 234 static int 235 iwn_probe(device_t dev) 236 { 237 const struct iwn_ident *ident; 238 239 for (ident = iwn_ident_table; ident->name != NULL; ident++) { 240 if (pci_get_vendor(dev) == ident->vendor && 241 pci_get_device(dev) == ident->device) { 242 device_set_desc(dev, ident->name); 243 return 0; 244 } 245 } 246 return ENXIO; 247 } 248 249 static int 250 iwn_attach(device_t dev) 251 { 252 struct iwn_softc *sc = (struct iwn_softc *)device_get_softc(dev); 253 struct ieee80211com *ic; 254 struct ifnet *ifp; 255 int i, error, result; 256 uint8_t macaddr[IEEE80211_ADDR_LEN]; 257 258 sc->sc_dev = dev; 259 260 /* XXX */ 261 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 262 device_printf(dev, "chip is in D%d power mode " 263 "-- setting to D0\n", pci_get_powerstate(dev)); 264 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 265 } 266 267 /* clear device specific PCI configuration register 0x41 */ 268 pci_write_config(dev, 0x41, 0, 1); 269 270 /* enable bus-mastering */ 271 pci_enable_busmaster(dev); 272 273 sc->mem_rid= PCIR_BAR(0); 274 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 275 RF_ACTIVE); 276 if (sc->mem == NULL ) { 277 device_printf(dev, "could not allocate memory resources\n"); 278 error = ENOMEM; 279 return error; 280 } 281 282 sc->sc_st = rman_get_bustag(sc->mem); 283 sc->sc_sh = rman_get_bushandle(sc->mem); 284 sc->irq_rid = 0; 285 if ((result = pci_msi_count(dev)) == 1 && 286 pci_alloc_msi(dev, &result) == 0) 287 sc->irq_rid = 1; 288 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 289 RF_ACTIVE | RF_SHAREABLE); 290 if (sc->irq == NULL) { 291 device_printf(dev, "could not allocate interrupt resource\n"); 292 error = ENOMEM; 293 return error; 294 } 295 296 IWN_LOCK_INIT(sc); 297 callout_init_mtx(&sc->sc_timer_to, &sc->sc_mtx, 0); 298 TASK_INIT(&sc->sc_reinit_task, 0, iwn_hwreset, sc ); 299 TASK_INIT(&sc->sc_radioon_task, 0, iwn_radioon, sc ); 300 TASK_INIT(&sc->sc_radiooff_task, 0, iwn_radiooff, sc ); 301 302 /* 303 * Put adapter into a known state. 304 */ 305 error = iwn_reset(sc); 306 if (error != 0) { 307 device_printf(dev, 308 "could not reset adapter, error %d\n", error); 309 goto fail; 310 } 311 312 /* 313 * Allocate DMA memory for firmware transfers. 314 */ 315 error = iwn_alloc_fwmem(sc); 316 if (error != 0) { 317 device_printf(dev, 318 "could not allocate firmware memory, error %d\n", error); 319 goto fail; 320 } 321 322 /* 323 * Allocate a "keep warm" page. 324 */ 325 error = iwn_alloc_kw(sc); 326 if (error != 0) { 327 device_printf(dev, 328 "could not allocate keep-warm page, error %d\n", error); 329 goto fail; 330 } 331 332 /* 333 * Allocate shared area (communication area). 334 */ 335 error = iwn_alloc_shared(sc); 336 if (error != 0) { 337 device_printf(dev, 338 "could not allocate shared area, error %d\n", error); 339 goto fail; 340 } 341 342 /* 343 * Allocate Tx rings. 344 */ 345 for (i = 0; i < IWN_NTXQUEUES; i++) { 346 error = iwn_alloc_tx_ring(sc, &sc->txq[i], i); 347 if (error != 0) { 348 device_printf(dev, 349 "could not allocate Tx ring %d, error %d\n", 350 i, error); 351 goto fail; 352 } 353 } 354 355 error = iwn_alloc_rx_ring(sc, &sc->rxq); 356 if (error != 0 ){ 357 device_printf(dev, 358 "could not allocate Rx ring, error %d\n", error); 359 goto fail; 360 } 361 362 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 363 if (ifp == NULL) { 364 device_printf(dev, "can not allocate ifnet structure\n"); 365 goto fail; 366 } 367 ic = ifp->if_l2com; 368 369 ic->ic_ifp = ifp; 370 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 371 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 372 373 /* set device capabilities */ 374 ic->ic_caps = 375 IEEE80211_C_STA /* station mode supported */ 376 | IEEE80211_C_MONITOR /* monitor mode supported */ 377 | IEEE80211_C_TXPMGT /* tx power management */ 378 | IEEE80211_C_SHSLOT /* short slot time supported */ 379 | IEEE80211_C_WPA 380 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 381 #if 0 382 | IEEE80211_C_BGSCAN /* background scanning */ 383 | IEEE80211_C_IBSS /* ibss/adhoc mode */ 384 #endif 385 | IEEE80211_C_WME /* WME */ 386 ; 387 #if 0 388 /* XXX disable until HT channel setup works */ 389 ic->ic_htcaps = 390 IEEE80211_HTCAP_SMPS_ENA /* SM PS mode enabled */ 391 | IEEE80211_HTCAP_CHWIDTH40 /* 40MHz channel width */ 392 | IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ 393 | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ 394 | IEEE80211_HTCAP_RXSTBC_2STREAM/* 1-2 spatial streams */ 395 | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ 396 /* s/w capabilities */ 397 | IEEE80211_HTC_HT /* HT operation */ 398 | IEEE80211_HTC_AMPDU /* tx A-MPDU */ 399 | IEEE80211_HTC_AMSDU /* tx A-MSDU */ 400 ; 401 #endif 402 /* read supported channels and MAC address from EEPROM */ 403 iwn_read_eeprom(sc, macaddr); 404 405 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 406 ifp->if_softc = sc; 407 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 408 ifp->if_init = iwn_init; 409 ifp->if_ioctl = iwn_ioctl; 410 ifp->if_start = iwn_start; 411 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 412 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 413 IFQ_SET_READY(&ifp->if_snd); 414 415 ieee80211_ifattach(ic, macaddr); 416 ic->ic_vap_create = iwn_vap_create; 417 ic->ic_vap_delete = iwn_vap_delete; 418 ic->ic_raw_xmit = iwn_raw_xmit; 419 ic->ic_node_alloc = iwn_node_alloc; 420 ic->ic_newassoc = iwn_newassoc; 421 ic->ic_wme.wme_update = iwn_wme_update; 422 ic->ic_scan_start = iwn_scan_start; 423 ic->ic_scan_end = iwn_scan_end; 424 ic->ic_set_channel = iwn_set_channel; 425 ic->ic_scan_curchan = iwn_scan_curchan; 426 ic->ic_scan_mindwell = iwn_scan_mindwell; 427 428 ieee80211_radiotap_attach(ic, 429 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 430 IWN_TX_RADIOTAP_PRESENT, 431 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 432 IWN_RX_RADIOTAP_PRESENT); 433 434 iwn_sysctlattach(sc); 435 436 /* 437 * Hook our interrupt after all initialization is complete. 438 */ 439 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 440 NULL, iwn_intr, sc, &sc->sc_ih); 441 if (error != 0) { 442 device_printf(dev, "could not set up interrupt, error %d\n", error); 443 goto fail; 444 } 445 446 ieee80211_announce(ic); 447 return 0; 448 fail: 449 iwn_cleanup(dev); 450 return error; 451 } 452 453 static int 454 iwn_detach(device_t dev) 455 { 456 iwn_cleanup(dev); 457 return 0; 458 } 459 460 /* 461 * Cleanup any device resources that were allocated 462 */ 463 int 464 iwn_cleanup(device_t dev) 465 { 466 struct iwn_softc *sc = device_get_softc(dev); 467 struct ifnet *ifp = sc->sc_ifp; 468 struct ieee80211com *ic = ifp->if_l2com; 469 int i; 470 471 ieee80211_draintask(ic, &sc->sc_reinit_task); 472 ieee80211_draintask(ic, &sc->sc_radioon_task); 473 ieee80211_draintask(ic, &sc->sc_radiooff_task); 474 475 if (ifp != NULL) { 476 iwn_stop(sc); 477 callout_drain(&sc->sc_timer_to); 478 ieee80211_ifdetach(ic); 479 } 480 481 iwn_unload_firmware(sc); 482 483 iwn_free_rx_ring(sc, &sc->rxq); 484 for (i = 0; i < IWN_NTXQUEUES; i++) 485 iwn_free_tx_ring(sc, &sc->txq[i]); 486 iwn_free_kw(sc); 487 iwn_free_fwmem(sc); 488 if (sc->irq != NULL) { 489 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 490 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 491 if (sc->irq_rid == 1) 492 pci_release_msi(dev); 493 } 494 if (sc->mem != NULL) 495 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 496 if (ifp != NULL) 497 if_free(ifp); 498 IWN_LOCK_DESTROY(sc); 499 return 0; 500 } 501 502 static struct ieee80211vap * 503 iwn_vap_create(struct ieee80211com *ic, 504 const char name[IFNAMSIZ], int unit, int opmode, int flags, 505 const uint8_t bssid[IEEE80211_ADDR_LEN], 506 const uint8_t mac[IEEE80211_ADDR_LEN]) 507 { 508 struct iwn_vap *ivp; 509 struct ieee80211vap *vap; 510 511 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 512 return NULL; 513 ivp = (struct iwn_vap *) malloc(sizeof(struct iwn_vap), 514 M_80211_VAP, M_NOWAIT | M_ZERO); 515 if (ivp == NULL) 516 return NULL; 517 vap = &ivp->iv_vap; 518 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 519 vap->iv_bmissthreshold = 10; /* override default */ 520 /* override with driver methods */ 521 ivp->iv_newstate = vap->iv_newstate; 522 vap->iv_newstate = iwn_newstate; 523 524 ieee80211_amrr_init(&ivp->iv_amrr, vap, 525 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD, 526 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD, 527 500 /*ms*/); 528 529 /* complete setup */ 530 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 531 ic->ic_opmode = opmode; 532 return vap; 533 } 534 535 static void 536 iwn_vap_delete(struct ieee80211vap *vap) 537 { 538 struct iwn_vap *ivp = IWN_VAP(vap); 539 540 ieee80211_amrr_cleanup(&ivp->iv_amrr); 541 ieee80211_vap_detach(vap); 542 free(ivp, M_80211_VAP); 543 } 544 545 static int 546 iwn_shutdown(device_t dev) 547 { 548 struct iwn_softc *sc = device_get_softc(dev); 549 550 iwn_stop(sc); 551 return 0; 552 } 553 554 static int 555 iwn_suspend(device_t dev) 556 { 557 struct iwn_softc *sc = device_get_softc(dev); 558 559 iwn_stop(sc); 560 return 0; 561 } 562 563 static int 564 iwn_resume(device_t dev) 565 { 566 struct iwn_softc *sc = device_get_softc(dev); 567 struct ifnet *ifp = sc->sc_ifp; 568 569 pci_write_config(dev, 0x41, 0, 1); 570 571 if (ifp->if_flags & IFF_UP) 572 iwn_init(sc); 573 return 0; 574 } 575 576 static void 577 iwn_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 578 { 579 if (error != 0) 580 return; 581 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); 582 *(bus_addr_t *)arg = segs[0].ds_addr; 583 } 584 585 static int 586 iwn_dma_contig_alloc(struct iwn_softc *sc, struct iwn_dma_info *dma, 587 void **kvap, bus_size_t size, bus_size_t alignment, int flags) 588 { 589 int error, lalignment, i; 590 591 /* 592 * FreeBSD can't guarrenty 16k alignment at the moment (11/2007) so 593 * we allocate an extra 12k with 4k alignement and walk through 594 * it trying to find where the alignment is. It's a nasty fix for 595 * a bigger problem. 596 */ 597 DPRINTF(sc, IWN_DEBUG_RESET, 598 "Size: %zd - alignment %zd\n", size, alignment); 599 if (alignment == 0x4000) { 600 size += 12*1024; 601 lalignment = 4096; 602 DPRINTF(sc, IWN_DEBUG_RESET, "%s\n", 603 "Attempting to find a 16k boundary"); 604 } else 605 lalignment = alignment; 606 dma->size = size; 607 dma->tag = NULL; 608 609 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), lalignment, 610 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size, 611 1, size, flags, NULL, NULL, &dma->tag); 612 if (error != 0) { 613 device_printf(sc->sc_dev, 614 "%s: bus_dma_tag_create failed, error %d\n", 615 __func__, error); 616 goto fail; 617 } 618 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr, 619 flags | BUS_DMA_ZERO, &dma->map); 620 if (error != 0) { 621 device_printf(sc->sc_dev, 622 "%s: bus_dmamem_alloc failed, error %d\n", 623 __func__, error); 624 goto fail; 625 } 626 if (alignment == 0x4000) { 627 for (i = 0; i < 3 && (((uintptr_t)dma->vaddr) & 0x3fff); i++) { 628 DPRINTF(sc, IWN_DEBUG_RESET, "%s\n", 629 "Memory Unaligned, shifting pointer by 4k"); 630 dma->vaddr += 4096; 631 size -= 4096; 632 } 633 if ((((uintptr_t)dma->vaddr ) & (alignment-1))) { 634 DPRINTF(sc, IWN_DEBUG_ANY, 635 "%s: failed to align memory, vaddr %p, align %zd\n", 636 __func__, dma->vaddr, alignment); 637 error = ENOMEM; 638 goto fail; 639 } 640 } 641 642 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, 643 size, iwn_dma_map_addr, &dma->paddr, flags); 644 if (error != 0) { 645 device_printf(sc->sc_dev, 646 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 647 goto fail; 648 } 649 650 if (kvap != NULL) 651 *kvap = dma->vaddr; 652 return 0; 653 fail: 654 iwn_dma_contig_free(dma); 655 return error; 656 } 657 658 static void 659 iwn_dma_contig_free(struct iwn_dma_info *dma) 660 { 661 if (dma->tag != NULL) { 662 if (dma->map != NULL) { 663 if (dma->paddr == 0) { 664 bus_dmamap_sync(dma->tag, dma->map, 665 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 666 bus_dmamap_unload(dma->tag, dma->map); 667 } 668 bus_dmamem_free(dma->tag, &dma->vaddr, dma->map); 669 } 670 bus_dma_tag_destroy(dma->tag); 671 } 672 } 673 674 int 675 iwn_alloc_shared(struct iwn_softc *sc) 676 { 677 /* must be aligned on a 1KB boundary */ 678 return iwn_dma_contig_alloc(sc, &sc->shared_dma, 679 (void **)&sc->shared, sizeof (struct iwn_shared), 1024, 680 BUS_DMA_NOWAIT); 681 } 682 683 void 684 iwn_free_shared(struct iwn_softc *sc) 685 { 686 iwn_dma_contig_free(&sc->shared_dma); 687 } 688 689 int 690 iwn_alloc_kw(struct iwn_softc *sc) 691 { 692 /* must be aligned on a 4k boundary */ 693 return iwn_dma_contig_alloc(sc, &sc->kw_dma, NULL, 694 PAGE_SIZE, PAGE_SIZE, BUS_DMA_NOWAIT); 695 } 696 697 void 698 iwn_free_kw(struct iwn_softc *sc) 699 { 700 iwn_dma_contig_free(&sc->kw_dma); 701 } 702 703 int 704 iwn_alloc_fwmem(struct iwn_softc *sc) 705 { 706 /* allocate enough contiguous space to store text and data */ 707 return iwn_dma_contig_alloc(sc, &sc->fw_dma, NULL, 708 IWN_FW_MAIN_TEXT_MAXSZ + IWN_FW_MAIN_DATA_MAXSZ, 16, 709 BUS_DMA_NOWAIT); 710 } 711 712 void 713 iwn_free_fwmem(struct iwn_softc *sc) 714 { 715 iwn_dma_contig_free(&sc->fw_dma); 716 } 717 718 int 719 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 720 { 721 int i, error; 722 723 ring->cur = 0; 724 725 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, 726 (void **)&ring->desc, IWN_RX_RING_COUNT * sizeof (uint32_t), 727 IWN_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 728 if (error != 0) { 729 device_printf(sc->sc_dev, 730 "%s: could not allocate rx ring DMA memory, error %d\n", 731 __func__, error); 732 goto fail; 733 } 734 735 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 736 BUS_SPACE_MAXADDR_32BIT, 737 BUS_SPACE_MAXADDR, NULL, NULL, MJUMPAGESIZE, 1, 738 MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL, &ring->data_dmat); 739 if (error != 0) { 740 device_printf(sc->sc_dev, 741 "%s: bus_dma_tag_create_failed, error %d\n", 742 __func__, error); 743 goto fail; 744 } 745 746 /* 747 * Setup Rx buffers. 748 */ 749 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 750 struct iwn_rx_data *data = &ring->data[i]; 751 struct mbuf *m; 752 bus_addr_t paddr; 753 754 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 755 if (error != 0) { 756 device_printf(sc->sc_dev, 757 "%s: bus_dmamap_create failed, error %d\n", 758 __func__, error); 759 goto fail; 760 } 761 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 762 if (m == NULL) { 763 device_printf(sc->sc_dev, 764 "%s: could not allocate rx mbuf\n", __func__); 765 error = ENOMEM; 766 goto fail; 767 } 768 /* map page */ 769 error = bus_dmamap_load(ring->data_dmat, data->map, 770 mtod(m, caddr_t), MJUMPAGESIZE, 771 iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 772 if (error != 0 && error != EFBIG) { 773 device_printf(sc->sc_dev, 774 "%s: bus_dmamap_load failed, error %d\n", 775 __func__, error); 776 m_freem(m); 777 error = ENOMEM; /* XXX unique code */ 778 goto fail; 779 } 780 bus_dmamap_sync(ring->data_dmat, data->map, 781 BUS_DMASYNC_PREWRITE); 782 783 data->m = m; 784 /* Rx buffers are aligned on a 256-byte boundary */ 785 ring->desc[i] = htole32(paddr >> 8); 786 } 787 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 788 BUS_DMASYNC_PREWRITE); 789 return 0; 790 fail: 791 iwn_free_rx_ring(sc, ring); 792 return error; 793 } 794 795 void 796 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 797 { 798 int ntries; 799 800 iwn_mem_lock(sc); 801 802 IWN_WRITE(sc, IWN_RX_CONFIG, 0); 803 for (ntries = 0; ntries < 100; ntries++) { 804 if (IWN_READ(sc, IWN_RX_STATUS) & IWN_RX_IDLE) 805 break; 806 DELAY(10); 807 } 808 #ifdef IWN_DEBUG 809 if (ntries == 100) 810 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n", "timeout resetting Rx ring"); 811 #endif 812 iwn_mem_unlock(sc); 813 814 ring->cur = 0; 815 } 816 817 void 818 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 819 { 820 int i; 821 822 iwn_dma_contig_free(&ring->desc_dma); 823 824 for (i = 0; i < IWN_RX_RING_COUNT; i++) 825 if (ring->data[i].m != NULL) 826 m_freem(ring->data[i].m); 827 } 828 829 int 830 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid) 831 { 832 bus_size_t size; 833 int i, error; 834 835 ring->qid = qid; 836 ring->queued = 0; 837 ring->cur = 0; 838 839 size = IWN_TX_RING_COUNT * sizeof(struct iwn_tx_desc); 840 error = iwn_dma_contig_alloc(sc, &ring->desc_dma, 841 (void **)&ring->desc, size, IWN_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 842 if (error != 0) { 843 device_printf(sc->sc_dev, 844 "%s: could not allocate tx ring DMA memory, error %d\n", 845 __func__, error); 846 goto fail; 847 } 848 849 size = IWN_TX_RING_COUNT * sizeof(struct iwn_tx_cmd); 850 error = iwn_dma_contig_alloc(sc, &ring->cmd_dma, 851 (void **)&ring->cmd, size, 4, BUS_DMA_NOWAIT); 852 if (error != 0) { 853 device_printf(sc->sc_dev, 854 "%s: could not allocate tx cmd DMA memory, error %d\n", 855 __func__, error); 856 goto fail; 857 } 858 859 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 860 BUS_SPACE_MAXADDR_32BIT, 861 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWN_MAX_SCATTER - 1, 862 MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL, &ring->data_dmat); 863 if (error != 0) { 864 device_printf(sc->sc_dev, 865 "%s: bus_dma_tag_create_failed, error %d\n", 866 __func__, error); 867 goto fail; 868 } 869 870 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 871 struct iwn_tx_data *data = &ring->data[i]; 872 873 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 874 if (error != 0) { 875 device_printf(sc->sc_dev, 876 "%s: bus_dmamap_create failed, error %d\n", 877 __func__, error); 878 goto fail; 879 } 880 bus_dmamap_sync(ring->data_dmat, data->map, 881 BUS_DMASYNC_PREWRITE); 882 } 883 return 0; 884 fail: 885 iwn_free_tx_ring(sc, ring); 886 return error; 887 } 888 889 void 890 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 891 { 892 uint32_t tmp; 893 int i, ntries; 894 895 iwn_mem_lock(sc); 896 897 IWN_WRITE(sc, IWN_TX_CONFIG(ring->qid), 0); 898 for (ntries = 0; ntries < 20; ntries++) { 899 tmp = IWN_READ(sc, IWN_TX_STATUS); 900 if ((tmp & IWN_TX_IDLE(ring->qid)) == IWN_TX_IDLE(ring->qid)) 901 break; 902 DELAY(10); 903 } 904 #ifdef IWN_DEBUG 905 if (ntries == 20) 906 DPRINTF(sc, IWN_DEBUG_RESET, 907 "%s: timeout resetting Tx ring %d\n", __func__, ring->qid); 908 #endif 909 iwn_mem_unlock(sc); 910 911 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 912 struct iwn_tx_data *data = &ring->data[i]; 913 914 if (data->m != NULL) { 915 bus_dmamap_unload(ring->data_dmat, data->map); 916 m_freem(data->m); 917 data->m = NULL; 918 } 919 } 920 921 ring->queued = 0; 922 ring->cur = 0; 923 } 924 925 void 926 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 927 { 928 int i; 929 930 iwn_dma_contig_free(&ring->desc_dma); 931 iwn_dma_contig_free(&ring->cmd_dma); 932 933 if (ring->data != NULL) { 934 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 935 struct iwn_tx_data *data = &ring->data[i]; 936 937 if (data->m != NULL) { 938 bus_dmamap_unload(ring->data_dmat, data->map); 939 m_freem(data->m); 940 } 941 } 942 } 943 } 944 945 struct ieee80211_node * 946 iwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 947 { 948 return malloc(sizeof (struct iwn_node), M_80211_NODE,M_NOWAIT | M_ZERO); 949 } 950 951 void 952 iwn_newassoc(struct ieee80211_node *ni, int isnew) 953 { 954 struct ieee80211vap *vap = ni->ni_vap; 955 956 ieee80211_amrr_node_init(&IWN_VAP(vap)->iv_amrr, 957 &IWN_NODE(ni)->amn, ni); 958 } 959 960 int 961 iwn_media_change(struct ifnet *ifp) 962 { 963 int error = ieee80211_media_change(ifp); 964 /* NB: only the fixed rate can change and that doesn't need a reset */ 965 return (error == ENETRESET ? 0 : error); 966 } 967 968 int 969 iwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 970 { 971 struct iwn_vap *ivp = IWN_VAP(vap); 972 struct ieee80211com *ic = vap->iv_ic; 973 struct iwn_softc *sc = ic->ic_ifp->if_softc; 974 int error; 975 976 DPRINTF(sc, IWN_DEBUG_STATE, "%s: %s -> %s\n", __func__, 977 ieee80211_state_name[vap->iv_state], 978 ieee80211_state_name[nstate]); 979 980 IEEE80211_UNLOCK(ic); 981 IWN_LOCK(sc); 982 callout_stop(&sc->sc_timer_to); 983 984 if (nstate == IEEE80211_S_AUTH && vap->iv_state != IEEE80211_S_AUTH) { 985 /* !AUTH -> AUTH requires adapter config */ 986 error = iwn_auth(sc, vap); 987 } 988 if (nstate == IEEE80211_S_RUN && vap->iv_state != IEEE80211_S_RUN) { 989 /* 990 * !RUN -> RUN requires setting the association id 991 * which is done with a firmware cmd. We also defer 992 * starting the timers until that work is done. 993 */ 994 error = iwn_run(sc, vap); 995 } 996 if (nstate == IEEE80211_S_RUN) { 997 /* 998 * RUN -> RUN transition; just restart the timers. 999 */ 1000 iwn_calib_reset(sc); 1001 } 1002 IWN_UNLOCK(sc); 1003 IEEE80211_LOCK(ic); 1004 return ivp->iv_newstate(vap, nstate, arg); 1005 } 1006 1007 /* 1008 * Grab exclusive access to NIC memory. 1009 */ 1010 void 1011 iwn_mem_lock(struct iwn_softc *sc) 1012 { 1013 uint32_t tmp; 1014 int ntries; 1015 1016 tmp = IWN_READ(sc, IWN_GPIO_CTL); 1017 IWN_WRITE(sc, IWN_GPIO_CTL, tmp | IWN_GPIO_MAC); 1018 1019 /* spin until we actually get the lock */ 1020 for (ntries = 0; ntries < 1000; ntries++) { 1021 if ((IWN_READ(sc, IWN_GPIO_CTL) & 1022 (IWN_GPIO_CLOCK | IWN_GPIO_SLEEP)) == IWN_GPIO_CLOCK) 1023 break; 1024 DELAY(10); 1025 } 1026 if (ntries == 1000) 1027 device_printf(sc->sc_dev, 1028 "%s: could not lock memory\n", __func__); 1029 } 1030 1031 /* 1032 * Release lock on NIC memory. 1033 */ 1034 void 1035 iwn_mem_unlock(struct iwn_softc *sc) 1036 { 1037 uint32_t tmp = IWN_READ(sc, IWN_GPIO_CTL); 1038 IWN_WRITE(sc, IWN_GPIO_CTL, tmp & ~IWN_GPIO_MAC); 1039 } 1040 1041 uint32_t 1042 iwn_mem_read(struct iwn_softc *sc, uint32_t addr) 1043 { 1044 IWN_WRITE(sc, IWN_READ_MEM_ADDR, IWN_MEM_4 | addr); 1045 return IWN_READ(sc, IWN_READ_MEM_DATA); 1046 } 1047 1048 void 1049 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1050 { 1051 IWN_WRITE(sc, IWN_WRITE_MEM_ADDR, IWN_MEM_4 | addr); 1052 IWN_WRITE(sc, IWN_WRITE_MEM_DATA, data); 1053 } 1054 1055 void 1056 iwn_mem_write_region_4(struct iwn_softc *sc, uint32_t addr, 1057 const uint32_t *data, int wlen) 1058 { 1059 for (; wlen > 0; wlen--, data++, addr += 4) 1060 iwn_mem_write(sc, addr, *data); 1061 } 1062 1063 int 1064 iwn_eeprom_lock(struct iwn_softc *sc) 1065 { 1066 uint32_t tmp; 1067 int ntries; 1068 1069 tmp = IWN_READ(sc, IWN_HWCONFIG); 1070 IWN_WRITE(sc, IWN_HWCONFIG, tmp | IWN_HW_EEPROM_LOCKED); 1071 1072 /* spin until we actually get the lock */ 1073 for (ntries = 0; ntries < 100; ntries++) { 1074 if (IWN_READ(sc, IWN_HWCONFIG) & IWN_HW_EEPROM_LOCKED) 1075 return 0; 1076 DELAY(10); 1077 } 1078 return ETIMEDOUT; 1079 } 1080 1081 void 1082 iwn_eeprom_unlock(struct iwn_softc *sc) 1083 { 1084 uint32_t tmp = IWN_READ(sc, IWN_HWCONFIG); 1085 IWN_WRITE(sc, IWN_HWCONFIG, tmp & ~IWN_HW_EEPROM_LOCKED); 1086 } 1087 1088 /* 1089 * Read `len' bytes from the EEPROM. We access the EEPROM through the MAC 1090 * instead of using the traditional bit-bang method. 1091 */ 1092 int 1093 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int len) 1094 { 1095 uint8_t *out = data; 1096 uint32_t val; 1097 int ntries, tmp; 1098 1099 iwn_mem_lock(sc); 1100 for (; len > 0; len -= 2, addr++) { 1101 IWN_WRITE(sc, IWN_EEPROM_CTL, addr << 2); 1102 tmp = IWN_READ(sc, IWN_EEPROM_CTL); 1103 IWN_WRITE(sc, IWN_EEPROM_CTL, tmp & ~IWN_EEPROM_MSK ); 1104 1105 for (ntries = 0; ntries < 10; ntries++) { 1106 if ((val = IWN_READ(sc, IWN_EEPROM_CTL)) & 1107 IWN_EEPROM_READY) 1108 break; 1109 DELAY(5); 1110 } 1111 if (ntries == 10) { 1112 device_printf(sc->sc_dev,"could not read EEPROM\n"); 1113 return ETIMEDOUT; 1114 } 1115 *out++ = val >> 16; 1116 if (len > 1) 1117 *out++ = val >> 24; 1118 } 1119 iwn_mem_unlock(sc); 1120 1121 return 0; 1122 } 1123 1124 /* 1125 * The firmware boot code is small and is intended to be copied directly into 1126 * the NIC internal memory. 1127 */ 1128 int 1129 iwn_transfer_microcode(struct iwn_softc *sc, const uint8_t *ucode, int size) 1130 { 1131 int ntries; 1132 1133 size /= sizeof (uint32_t); 1134 1135 iwn_mem_lock(sc); 1136 1137 /* copy microcode image into NIC memory */ 1138 iwn_mem_write_region_4(sc, IWN_MEM_UCODE_BASE, 1139 (const uint32_t *)ucode, size); 1140 1141 iwn_mem_write(sc, IWN_MEM_UCODE_SRC, 0); 1142 iwn_mem_write(sc, IWN_MEM_UCODE_DST, IWN_FW_TEXT); 1143 iwn_mem_write(sc, IWN_MEM_UCODE_SIZE, size); 1144 1145 /* run microcode */ 1146 iwn_mem_write(sc, IWN_MEM_UCODE_CTL, IWN_UC_RUN); 1147 1148 /* wait for transfer to complete */ 1149 for (ntries = 0; ntries < 1000; ntries++) { 1150 if (!(iwn_mem_read(sc, IWN_MEM_UCODE_CTL) & IWN_UC_RUN)) 1151 break; 1152 DELAY(10); 1153 } 1154 if (ntries == 1000) { 1155 iwn_mem_unlock(sc); 1156 device_printf(sc->sc_dev, 1157 "%s: could not load boot firmware\n", __func__); 1158 return ETIMEDOUT; 1159 } 1160 iwn_mem_write(sc, IWN_MEM_UCODE_CTL, IWN_UC_ENABLE); 1161 1162 iwn_mem_unlock(sc); 1163 1164 return 0; 1165 } 1166 1167 int 1168 iwn_load_firmware(struct iwn_softc *sc) 1169 { 1170 int error; 1171 1172 KASSERT(sc->fw_fp == NULL, ("firmware already loaded")); 1173 1174 IWN_UNLOCK(sc); 1175 /* load firmware image from disk */ 1176 sc->fw_fp = firmware_get("iwnfw"); 1177 if (sc->fw_fp == NULL) { 1178 device_printf(sc->sc_dev, 1179 "%s: could not load firmare image \"iwnfw\"\n", __func__); 1180 error = EINVAL; 1181 } else 1182 error = 0; 1183 IWN_LOCK(sc); 1184 return error; 1185 } 1186 1187 int 1188 iwn_transfer_firmware(struct iwn_softc *sc) 1189 { 1190 struct iwn_dma_info *dma = &sc->fw_dma; 1191 const struct iwn_firmware_hdr *hdr; 1192 const uint8_t *init_text, *init_data, *main_text, *main_data; 1193 const uint8_t *boot_text; 1194 uint32_t init_textsz, init_datasz, main_textsz, main_datasz; 1195 uint32_t boot_textsz; 1196 int error = 0; 1197 const struct firmware *fp = sc->fw_fp; 1198 1199 /* extract firmware header information */ 1200 if (fp->datasize < sizeof (struct iwn_firmware_hdr)) { 1201 device_printf(sc->sc_dev, 1202 "%s: truncated firmware header: %zu bytes, expecting %zu\n", 1203 __func__, fp->datasize, sizeof (struct iwn_firmware_hdr)); 1204 error = EINVAL; 1205 goto fail; 1206 } 1207 hdr = (const struct iwn_firmware_hdr *)fp->data; 1208 main_textsz = le32toh(hdr->main_textsz); 1209 main_datasz = le32toh(hdr->main_datasz); 1210 init_textsz = le32toh(hdr->init_textsz); 1211 init_datasz = le32toh(hdr->init_datasz); 1212 boot_textsz = le32toh(hdr->boot_textsz); 1213 1214 /* sanity-check firmware segments sizes */ 1215 if (main_textsz > IWN_FW_MAIN_TEXT_MAXSZ || 1216 main_datasz > IWN_FW_MAIN_DATA_MAXSZ || 1217 init_textsz > IWN_FW_INIT_TEXT_MAXSZ || 1218 init_datasz > IWN_FW_INIT_DATA_MAXSZ || 1219 boot_textsz > IWN_FW_BOOT_TEXT_MAXSZ || 1220 (boot_textsz & 3) != 0) { 1221 device_printf(sc->sc_dev, 1222 "%s: invalid firmware header, main [%d,%d], init [%d,%d] " 1223 "boot %d\n", __func__, main_textsz, main_datasz, 1224 init_textsz, init_datasz, boot_textsz); 1225 error = EINVAL; 1226 goto fail; 1227 } 1228 1229 /* check that all firmware segments are present */ 1230 if (fp->datasize < sizeof (struct iwn_firmware_hdr) + main_textsz + 1231 main_datasz + init_textsz + init_datasz + boot_textsz) { 1232 device_printf(sc->sc_dev, "%s: firmware file too short: " 1233 "%zu bytes, main [%d, %d], init [%d,%d] boot %d\n", 1234 __func__, fp->datasize, main_textsz, main_datasz, 1235 init_textsz, init_datasz, boot_textsz); 1236 error = EINVAL; 1237 goto fail; 1238 } 1239 1240 /* get pointers to firmware segments */ 1241 main_text = (const uint8_t *)(hdr + 1); 1242 main_data = main_text + main_textsz; 1243 init_text = main_data + main_datasz; 1244 init_data = init_text + init_textsz; 1245 boot_text = init_data + init_datasz; 1246 1247 /* copy initialization images into pre-allocated DMA-safe memory */ 1248 memcpy(dma->vaddr, init_data, init_datasz); 1249 memcpy(dma->vaddr + IWN_FW_INIT_DATA_MAXSZ, init_text, init_textsz); 1250 1251 /* tell adapter where to find initialization images */ 1252 iwn_mem_lock(sc); 1253 iwn_mem_write(sc, IWN_MEM_DATA_BASE, dma->paddr >> 4); 1254 iwn_mem_write(sc, IWN_MEM_DATA_SIZE, init_datasz); 1255 iwn_mem_write(sc, IWN_MEM_TEXT_BASE, 1256 (dma->paddr + IWN_FW_INIT_DATA_MAXSZ) >> 4); 1257 iwn_mem_write(sc, IWN_MEM_TEXT_SIZE, init_textsz); 1258 iwn_mem_unlock(sc); 1259 1260 /* load firmware boot code */ 1261 error = iwn_transfer_microcode(sc, boot_text, boot_textsz); 1262 if (error != 0) { 1263 device_printf(sc->sc_dev, 1264 "%s: could not load boot firmware, error %d\n", 1265 __func__, error); 1266 goto fail; 1267 } 1268 1269 /* now press "execute" ;-) */ 1270 IWN_WRITE(sc, IWN_RESET, 0); 1271 1272 /* wait at most one second for first alive notification */ 1273 error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz); 1274 if (error != 0) { 1275 /* this isn't what was supposed to happen.. */ 1276 device_printf(sc->sc_dev, 1277 "%s: timeout waiting for first alive notice, error %d\n", 1278 __func__, error); 1279 goto fail; 1280 } 1281 1282 /* copy runtime images into pre-allocated DMA-safe memory */ 1283 memcpy(dma->vaddr, main_data, main_datasz); 1284 memcpy(dma->vaddr + IWN_FW_MAIN_DATA_MAXSZ, main_text, main_textsz); 1285 1286 /* tell adapter where to find runtime images */ 1287 iwn_mem_lock(sc); 1288 iwn_mem_write(sc, IWN_MEM_DATA_BASE, dma->paddr >> 4); 1289 iwn_mem_write(sc, IWN_MEM_DATA_SIZE, main_datasz); 1290 iwn_mem_write(sc, IWN_MEM_TEXT_BASE, 1291 (dma->paddr + IWN_FW_MAIN_DATA_MAXSZ) >> 4); 1292 iwn_mem_write(sc, IWN_MEM_TEXT_SIZE, IWN_FW_UPDATED | main_textsz); 1293 iwn_mem_unlock(sc); 1294 1295 /* wait at most one second for second alive notification */ 1296 error = msleep(sc, &sc->sc_mtx, PCATCH, "iwninit", hz); 1297 if (error != 0) { 1298 /* this isn't what was supposed to happen.. */ 1299 device_printf(sc->sc_dev, 1300 "%s: timeout waiting for second alive notice, error %d\n", 1301 __func__, error); 1302 goto fail; 1303 } 1304 return 0; 1305 fail: 1306 return error; 1307 } 1308 1309 void 1310 iwn_unload_firmware(struct iwn_softc *sc) 1311 { 1312 if (sc->fw_fp != NULL) { 1313 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 1314 sc->fw_fp = NULL; 1315 } 1316 } 1317 1318 static void 1319 iwn_timer_timeout(void *arg) 1320 { 1321 struct iwn_softc *sc = arg; 1322 1323 IWN_LOCK_ASSERT(sc); 1324 1325 if (sc->calib_cnt && --sc->calib_cnt == 0) { 1326 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s\n", 1327 "send statistics request"); 1328 (void) iwn_cmd(sc, IWN_CMD_GET_STATISTICS, NULL, 0, 1); 1329 sc->calib_cnt = 60; /* do calibration every 60s */ 1330 } 1331 iwn_watchdog(sc); /* NB: piggyback tx watchdog */ 1332 callout_reset(&sc->sc_timer_to, hz, iwn_timer_timeout, sc); 1333 } 1334 1335 static void 1336 iwn_calib_reset(struct iwn_softc *sc) 1337 { 1338 callout_reset(&sc->sc_timer_to, hz, iwn_timer_timeout, sc); 1339 sc->calib_cnt = 60; /* do calibration every 60s */ 1340 } 1341 1342 void 1343 iwn_ampdu_rx_start(struct iwn_softc *sc, struct iwn_rx_desc *desc) 1344 { 1345 struct iwn_rx_stat *stat; 1346 1347 DPRINTF(sc, IWN_DEBUG_RECV, "%s\n", "received AMPDU stats"); 1348 /* save Rx statistics, they will be used on IWN_AMPDU_RX_DONE */ 1349 stat = (struct iwn_rx_stat *)(desc + 1); 1350 memcpy(&sc->last_rx_stat, stat, sizeof (*stat)); 1351 sc->last_rx_valid = 1; 1352 } 1353 1354 static __inline int 1355 maprate(int iwnrate) 1356 { 1357 switch (iwnrate) { 1358 /* CCK rates */ 1359 case 10: return 2; 1360 case 20: return 4; 1361 case 55: return 11; 1362 case 110: return 22; 1363 /* OFDM rates */ 1364 case 0xd: return 12; 1365 case 0xf: return 18; 1366 case 0x5: return 24; 1367 case 0x7: return 36; 1368 case 0x9: return 48; 1369 case 0xb: return 72; 1370 case 0x1: return 96; 1371 case 0x3: return 108; 1372 /* XXX MCS */ 1373 } 1374 /* unknown rate: should not happen */ 1375 return 0; 1376 } 1377 1378 void 1379 iwn_rx_intr(struct iwn_softc *sc, struct iwn_rx_desc *desc, 1380 struct iwn_rx_data *data) 1381 { 1382 struct ifnet *ifp = sc->sc_ifp; 1383 struct ieee80211com *ic = ifp->if_l2com; 1384 struct iwn_rx_ring *ring = &sc->rxq; 1385 struct ieee80211_frame *wh; 1386 struct ieee80211_node *ni; 1387 struct mbuf *m, *mnew; 1388 struct iwn_rx_stat *stat; 1389 caddr_t head; 1390 uint32_t *tail; 1391 int8_t rssi, nf; 1392 int len, error; 1393 bus_addr_t paddr; 1394 1395 if (desc->type == IWN_AMPDU_RX_DONE) { 1396 /* check for prior AMPDU_RX_START */ 1397 if (!sc->last_rx_valid) { 1398 DPRINTF(sc, IWN_DEBUG_ANY, 1399 "%s: missing AMPDU_RX_START\n", __func__); 1400 ifp->if_ierrors++; 1401 return; 1402 } 1403 sc->last_rx_valid = 0; 1404 stat = &sc->last_rx_stat; 1405 } else 1406 stat = (struct iwn_rx_stat *)(desc + 1); 1407 1408 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) { 1409 device_printf(sc->sc_dev, 1410 "%s: invalid rx statistic header, len %d\n", 1411 __func__, stat->cfg_phy_len); 1412 ifp->if_ierrors++; 1413 return; 1414 } 1415 if (desc->type == IWN_AMPDU_RX_DONE) { 1416 struct iwn_rx_ampdu *ampdu = (struct iwn_rx_ampdu *)(desc + 1); 1417 head = (caddr_t)(ampdu + 1); 1418 len = le16toh(ampdu->len); 1419 } else { 1420 head = (caddr_t)(stat + 1) + stat->cfg_phy_len; 1421 len = le16toh(stat->len); 1422 } 1423 1424 /* discard Rx frames with bad CRC early */ 1425 tail = (uint32_t *)(head + len); 1426 if ((le32toh(*tail) & IWN_RX_NOERROR) != IWN_RX_NOERROR) { 1427 DPRINTF(sc, IWN_DEBUG_RECV, "%s: rx flags error %x\n", 1428 __func__, le32toh(*tail)); 1429 ifp->if_ierrors++; 1430 return; 1431 } 1432 if (len < sizeof (struct ieee80211_frame)) { 1433 DPRINTF(sc, IWN_DEBUG_RECV, "%s: frame too short: %d\n", 1434 __func__, len); 1435 ifp->if_ierrors++; 1436 return; 1437 } 1438 1439 /* XXX don't need mbuf, just dma buffer */ 1440 mnew = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 1441 if (mnew == NULL) { 1442 DPRINTF(sc, IWN_DEBUG_ANY, "%s: no mbuf to restock ring\n", 1443 __func__); 1444 ifp->if_ierrors++; 1445 return; 1446 } 1447 error = bus_dmamap_load(ring->data_dmat, data->map, 1448 mtod(mnew, caddr_t), MJUMPAGESIZE, 1449 iwn_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 1450 if (error != 0 && error != EFBIG) { 1451 device_printf(sc->sc_dev, 1452 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 1453 m_freem(mnew); 1454 ifp->if_ierrors++; 1455 return; 1456 } 1457 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1458 1459 /* finalize mbuf and swap in new one */ 1460 m = data->m; 1461 m->m_pkthdr.rcvif = ifp; 1462 m->m_data = head; 1463 m->m_pkthdr.len = m->m_len = len; 1464 1465 data->m = mnew; 1466 /* update Rx descriptor */ 1467 ring->desc[ring->cur] = htole32(paddr >> 8); 1468 1469 rssi = iwn_get_rssi(sc, stat); 1470 1471 /* grab a reference to the source node */ 1472 wh = mtod(m, struct ieee80211_frame *); 1473 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1474 1475 nf = (ni != NULL && ni->ni_vap->iv_state == IEEE80211_S_RUN && 1476 (ic->ic_flags & IEEE80211_F_SCAN) == 0) ? sc->noise : -95; 1477 1478 if (ieee80211_radiotap_active(ic)) { 1479 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; 1480 1481 tap->wr_tsft = htole64(stat->tstamp); 1482 tap->wr_flags = 0; 1483 if (stat->flags & htole16(IWN_CONFIG_SHPREAMBLE)) 1484 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 1485 tap->wr_rate = maprate(stat->rate); 1486 tap->wr_dbm_antsignal = rssi; 1487 tap->wr_dbm_antnoise = nf; 1488 } 1489 1490 IWN_UNLOCK(sc); 1491 1492 /* send the frame to the 802.11 layer */ 1493 if (ni != NULL) { 1494 (void) ieee80211_input(ni, m, rssi - nf, nf); 1495 ieee80211_free_node(ni); 1496 } else 1497 (void) ieee80211_input_all(ic, m, rssi - nf, nf); 1498 1499 IWN_LOCK(sc); 1500 } 1501 1502 void 1503 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc) 1504 { 1505 struct ifnet *ifp = sc->sc_ifp; 1506 struct ieee80211com *ic = ifp->if_l2com; 1507 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1508 struct iwn_calib_state *calib = &sc->calib; 1509 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1); 1510 1511 /* beacon stats are meaningful only when associated and not scanning */ 1512 if (vap->iv_state != IEEE80211_S_RUN || 1513 (ic->ic_flags & IEEE80211_F_SCAN)) 1514 return; 1515 1516 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: cmd %d\n", __func__, desc->type); 1517 iwn_calib_reset(sc); 1518 1519 /* test if temperature has changed */ 1520 if (stats->general.temp != sc->rawtemp) { 1521 int temp; 1522 1523 sc->rawtemp = stats->general.temp; 1524 temp = iwn_get_temperature(sc); 1525 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d\n", 1526 __func__, temp); 1527 1528 /* update Tx power if need be */ 1529 iwn_power_calibration(sc, temp); 1530 } 1531 1532 if (desc->type != IWN_BEACON_STATISTICS) 1533 return; /* reply to a statistics request */ 1534 1535 sc->noise = iwn_get_noise(&stats->rx.general); 1536 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: noise %d\n", __func__, sc->noise); 1537 1538 /* test that RSSI and noise are present in stats report */ 1539 if (stats->rx.general.flags != htole32(1)) { 1540 DPRINTF(sc, IWN_DEBUG_ANY, "%s\n", 1541 "received statistics without RSSI"); 1542 return; 1543 } 1544 1545 if (calib->state == IWN_CALIB_STATE_ASSOC) 1546 iwn_compute_differential_gain(sc, &stats->rx.general); 1547 else if (calib->state == IWN_CALIB_STATE_RUN) 1548 iwn_tune_sensitivity(sc, &stats->rx); 1549 } 1550 1551 void 1552 iwn_tx_intr(struct iwn_softc *sc, struct iwn_rx_desc *desc) 1553 { 1554 struct ifnet *ifp = sc->sc_ifp; 1555 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf]; 1556 struct iwn_tx_data *data = &ring->data[desc->idx]; 1557 struct iwn_tx_stat *stat = (struct iwn_tx_stat *)(desc + 1); 1558 struct iwn_node *wn = IWN_NODE(data->ni); 1559 struct mbuf *m; 1560 struct ieee80211_node *ni; 1561 uint32_t status; 1562 1563 KASSERT(data->ni != NULL, ("no node")); 1564 1565 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: " 1566 "qid %d idx %d retries %d nkill %d rate %x duration %d status %x\n", 1567 __func__, desc->qid, desc->idx, stat->ntries, 1568 stat->nkill, stat->rate, le16toh(stat->duration), 1569 le32toh(stat->status)); 1570 1571 /* 1572 * Update rate control statistics for the node. 1573 */ 1574 status = le32toh(stat->status) & 0xff; 1575 if (status & 0x80) { 1576 DPRINTF(sc, IWN_DEBUG_ANY, "%s: status 0x%x\n", 1577 __func__, le32toh(stat->status)); 1578 ifp->if_oerrors++; 1579 ieee80211_amrr_tx_complete(&wn->amn, 1580 IEEE80211_AMRR_FAILURE, stat->ntries); 1581 } else { 1582 ieee80211_amrr_tx_complete(&wn->amn, 1583 IEEE80211_AMRR_SUCCESS, stat->ntries); 1584 } 1585 1586 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 1587 bus_dmamap_unload(ring->data_dmat, data->map); 1588 1589 m = data->m, data->m = NULL; 1590 ni = data->ni, data->ni = NULL; 1591 1592 if (m->m_flags & M_TXCB) { 1593 /* 1594 * Channels marked for "radar" require traffic to be received 1595 * to unlock before we can transmit. Until traffic is seen 1596 * any attempt to transmit is returned immediately with status 1597 * set to IWN_TX_FAIL_TX_LOCKED. Unfortunately this can easily 1598 * happen on first authenticate after scanning. To workaround 1599 * this we ignore a failure of this sort in AUTH state so the 1600 * 802.11 layer will fall back to using a timeout to wait for 1601 * the AUTH reply. This allows the firmware time to see 1602 * traffic so a subsequent retry of AUTH succeeds. It's 1603 * unclear why the firmware does not maintain state for 1604 * channels recently visited as this would allow immediate 1605 * use of the channel after a scan (where we see traffic). 1606 */ 1607 if (status == IWN_TX_FAIL_TX_LOCKED && 1608 ni->ni_vap->iv_state == IEEE80211_S_AUTH) 1609 ieee80211_process_callback(ni, m, 0); 1610 else 1611 ieee80211_process_callback(ni, m, 1612 (status & IWN_TX_FAIL) != 0); 1613 } 1614 m_freem(m); 1615 ieee80211_free_node(ni); 1616 1617 ring->queued--; 1618 1619 sc->sc_tx_timer = 0; 1620 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1621 iwn_start_locked(ifp); 1622 } 1623 1624 void 1625 iwn_cmd_intr(struct iwn_softc *sc, struct iwn_rx_desc *desc) 1626 { 1627 struct iwn_tx_ring *ring = &sc->txq[4]; 1628 struct iwn_tx_data *data; 1629 1630 if ((desc->qid & 0xf) != 4) 1631 return; /* not a command ack */ 1632 1633 data = &ring->data[desc->idx]; 1634 1635 /* if the command was mapped in a mbuf, free it */ 1636 if (data->m != NULL) { 1637 bus_dmamap_unload(ring->data_dmat, data->map); 1638 m_freem(data->m); 1639 data->m = NULL; 1640 } 1641 1642 wakeup(&ring->cmd[desc->idx]); 1643 } 1644 1645 void 1646 iwn_notif_intr(struct iwn_softc *sc) 1647 { 1648 struct ifnet *ifp = sc->sc_ifp; 1649 struct ieee80211com *ic = ifp->if_l2com; 1650 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1651 uint16_t hw; 1652 1653 hw = le16toh(sc->shared->closed_count) & 0xfff; 1654 while (sc->rxq.cur != hw) { 1655 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 1656 struct iwn_rx_desc *desc = (void *)data->m->m_ext.ext_buf; 1657 1658 DPRINTF(sc, IWN_DEBUG_RECV, 1659 "%s: qid %x idx %d flags %x type %d(%s) len %d\n", 1660 __func__, desc->qid, desc->idx, desc->flags, 1661 desc->type, iwn_intr_str(desc->type), 1662 le16toh(desc->len)); 1663 1664 if (!(desc->qid & 0x80)) /* reply to a command */ 1665 iwn_cmd_intr(sc, desc); 1666 1667 switch (desc->type) { 1668 case IWN_RX_DONE: 1669 case IWN_AMPDU_RX_DONE: 1670 iwn_rx_intr(sc, desc, data); 1671 break; 1672 1673 case IWN_AMPDU_RX_START: 1674 iwn_ampdu_rx_start(sc, desc); 1675 break; 1676 1677 case IWN_TX_DONE: 1678 /* a 802.11 frame has been transmitted */ 1679 iwn_tx_intr(sc, desc); 1680 break; 1681 1682 case IWN_RX_STATISTICS: 1683 case IWN_BEACON_STATISTICS: 1684 iwn_rx_statistics(sc, desc); 1685 break; 1686 1687 case IWN_BEACON_MISSED: { 1688 struct iwn_beacon_missed *miss = 1689 (struct iwn_beacon_missed *)(desc + 1); 1690 int misses = le32toh(miss->consecutive); 1691 1692 /* XXX not sure why we're notified w/ zero */ 1693 if (misses == 0) 1694 break; 1695 DPRINTF(sc, IWN_DEBUG_STATE, 1696 "%s: beacons missed %d/%d\n", __func__, 1697 misses, le32toh(miss->total)); 1698 /* 1699 * If more than 5 consecutive beacons are missed, 1700 * reinitialize the sensitivity state machine. 1701 */ 1702 if (vap->iv_state == IEEE80211_S_RUN && misses > 5) 1703 (void) iwn_init_sensitivity(sc); 1704 if (misses >= vap->iv_bmissthreshold) 1705 ieee80211_beacon_miss(ic); 1706 break; 1707 } 1708 case IWN_UC_READY: { 1709 struct iwn_ucode_info *uc = 1710 (struct iwn_ucode_info *)(desc + 1); 1711 1712 /* the microcontroller is ready */ 1713 DPRINTF(sc, IWN_DEBUG_RESET, 1714 "microcode alive notification version=%d.%d " 1715 "subtype=%x alive=%x\n", uc->major, uc->minor, 1716 uc->subtype, le32toh(uc->valid)); 1717 1718 if (le32toh(uc->valid) != 1) { 1719 device_printf(sc->sc_dev, 1720 "microcontroller initialization failed"); 1721 break; 1722 } 1723 if (uc->subtype == IWN_UCODE_INIT) { 1724 /* save microcontroller's report */ 1725 memcpy(&sc->ucode_info, uc, sizeof (*uc)); 1726 } 1727 break; 1728 } 1729 case IWN_STATE_CHANGED: { 1730 uint32_t *status = (uint32_t *)(desc + 1); 1731 1732 /* 1733 * State change allows hardware switch change to be 1734 * noted. However, we handle this in iwn_intr as we 1735 * get both the enable/disble intr. 1736 */ 1737 DPRINTF(sc, IWN_DEBUG_INTR, "state changed to %x\n", 1738 le32toh(*status)); 1739 break; 1740 } 1741 case IWN_START_SCAN: { 1742 struct iwn_start_scan *scan = 1743 (struct iwn_start_scan *)(desc + 1); 1744 1745 DPRINTF(sc, IWN_DEBUG_ANY, 1746 "%s: scanning channel %d status %x\n", 1747 __func__, scan->chan, le32toh(scan->status)); 1748 break; 1749 } 1750 case IWN_STOP_SCAN: { 1751 struct iwn_stop_scan *scan = 1752 (struct iwn_stop_scan *)(desc + 1); 1753 1754 DPRINTF(sc, IWN_DEBUG_STATE, 1755 "scan finished nchan=%d status=%d chan=%d\n", 1756 scan->nchan, scan->status, scan->chan); 1757 1758 ieee80211_scan_next(vap); 1759 break; 1760 } 1761 } 1762 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT; 1763 } 1764 1765 /* tell the firmware what we have processed */ 1766 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1; 1767 IWN_WRITE(sc, IWN_RX_WIDX, hw & ~7); 1768 } 1769 1770 static void 1771 iwn_rftoggle_intr(struct iwn_softc *sc) 1772 { 1773 struct ifnet *ifp = sc->sc_ifp; 1774 struct ieee80211com *ic = ifp->if_l2com; 1775 uint32_t tmp = IWN_READ(sc, IWN_GPIO_CTL); 1776 1777 IWN_LOCK_ASSERT(sc); 1778 1779 device_printf(sc->sc_dev, "RF switch: radio %s\n", 1780 (tmp & IWN_GPIO_RF_ENABLED) ? "enabled" : "disabled"); 1781 if (tmp & IWN_GPIO_RF_ENABLED) 1782 ieee80211_runtask(ic, &sc->sc_radioon_task); 1783 else 1784 ieee80211_runtask(ic, &sc->sc_radiooff_task); 1785 } 1786 1787 static void 1788 iwn_error_intr(struct iwn_softc *sc, uint32_t r1, uint32_t r2) 1789 { 1790 struct ifnet *ifp = sc->sc_ifp; 1791 struct ieee80211com *ic = ifp->if_l2com; 1792 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1793 1794 IWN_LOCK_ASSERT(sc); 1795 1796 device_printf(sc->sc_dev, "error, INTR=%b STATUS=0x%x\n", 1797 r1, IWN_INTR_BITS, r2); 1798 if (vap != NULL) 1799 ieee80211_cancel_scan(vap); 1800 ieee80211_runtask(ic, &sc->sc_reinit_task); 1801 } 1802 1803 void 1804 iwn_intr(void *arg) 1805 { 1806 struct iwn_softc *sc = arg; 1807 uint32_t r1, r2; 1808 1809 IWN_LOCK(sc); 1810 1811 /* disable interrupts */ 1812 IWN_WRITE(sc, IWN_MASK, 0); 1813 1814 r1 = IWN_READ(sc, IWN_INTR); 1815 r2 = IWN_READ(sc, IWN_INTR_STATUS); 1816 1817 if (r1 == 0 && r2 == 0) { 1818 IWN_WRITE(sc, IWN_MASK, IWN_INTR_MASK); 1819 goto done; /* not for us */ 1820 } 1821 1822 if (r1 == 0xffffffff) 1823 goto done; /* hardware gone */ 1824 1825 /* ack interrupts */ 1826 IWN_WRITE(sc, IWN_INTR, r1); 1827 IWN_WRITE(sc, IWN_INTR_STATUS, r2); 1828 1829 DPRINTF(sc, IWN_DEBUG_INTR, "interrupt reg1=%x reg2=%x\n", r1, r2); 1830 1831 if (r1 & IWN_RF_TOGGLED) 1832 iwn_rftoggle_intr(sc); 1833 if (r1 & IWN_CT_REACHED) 1834 device_printf(sc->sc_dev, "critical temperature reached!\n"); 1835 if (r1 & (IWN_SW_ERROR | IWN_HW_ERROR)) { 1836 iwn_error_intr(sc, r1, r2); 1837 goto done; 1838 } 1839 if ((r1 & (IWN_RX_INTR | IWN_SW_RX_INTR)) || (r2 & IWN_RX_STATUS_INTR)) 1840 iwn_notif_intr(sc); 1841 if (r1 & IWN_ALIVE_INTR) 1842 wakeup(sc); 1843 1844 /* re-enable interrupts */ 1845 IWN_WRITE(sc, IWN_MASK, IWN_INTR_MASK); 1846 done: 1847 IWN_UNLOCK(sc); 1848 } 1849 1850 uint8_t 1851 iwn_plcp_signal(int rate) 1852 { 1853 switch (rate) { 1854 /* CCK rates (returned values are device-dependent) */ 1855 case 2: return 10; 1856 case 4: return 20; 1857 case 11: return 55; 1858 case 22: return 110; 1859 1860 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1861 /* R1-R4, (u)ral is R4-R1 */ 1862 case 12: return 0xd; 1863 case 18: return 0xf; 1864 case 24: return 0x5; 1865 case 36: return 0x7; 1866 case 48: return 0x9; 1867 case 72: return 0xb; 1868 case 96: return 0x1; 1869 case 108: return 0x3; 1870 case 120: return 0x3; 1871 } 1872 /* unknown rate (should not get there) */ 1873 return 0; 1874 } 1875 1876 /* determine if a given rate is CCK or OFDM */ 1877 #define IWN_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 1878 1879 int 1880 iwn_tx_data(struct iwn_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1881 struct iwn_tx_ring *ring) 1882 { 1883 struct ieee80211vap *vap = ni->ni_vap; 1884 struct ieee80211com *ic = ni->ni_ic; 1885 struct ifnet *ifp = sc->sc_ifp; 1886 const struct ieee80211_txparam *tp; 1887 struct iwn_tx_desc *desc; 1888 struct iwn_tx_data *data; 1889 struct iwn_tx_cmd *cmd; 1890 struct iwn_cmd_data *tx; 1891 struct ieee80211_frame *wh; 1892 struct ieee80211_key *k; 1893 bus_addr_t paddr; 1894 uint32_t flags; 1895 uint16_t timeout; 1896 uint8_t type; 1897 u_int hdrlen; 1898 struct mbuf *mnew; 1899 int rate, error, pad, nsegs, i, ismcast, id; 1900 bus_dma_segment_t segs[IWN_MAX_SCATTER]; 1901 1902 IWN_LOCK_ASSERT(sc); 1903 1904 wh = mtod(m0, struct ieee80211_frame *); 1905 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1906 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1907 hdrlen = ieee80211_anyhdrsize(wh); 1908 1909 /* pick a tx rate */ 1910 /* XXX ni_chan */ 1911 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1912 if (type == IEEE80211_FC0_TYPE_MGT) 1913 rate = tp->mgmtrate; 1914 else if (ismcast) 1915 rate = tp->mcastrate; 1916 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1917 rate = tp->ucastrate; 1918 else { 1919 (void) ieee80211_amrr_choose(ni, &IWN_NODE(ni)->amn); 1920 rate = ni->ni_txrate; 1921 } 1922 1923 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1924 k = ieee80211_crypto_encap(ni, m0); 1925 if (k == NULL) { 1926 m_freem(m0); 1927 return ENOBUFS; 1928 } 1929 /* packet header may have moved, reset our local pointer */ 1930 wh = mtod(m0, struct ieee80211_frame *); 1931 } else 1932 k = NULL; 1933 1934 if (ieee80211_radiotap_active_vap(vap)) { 1935 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 1936 1937 tap->wt_flags = 0; 1938 tap->wt_rate = rate; 1939 if (k != NULL) 1940 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 1941 1942 ieee80211_radiotap_tx(vap, m0); 1943 } 1944 1945 flags = IWN_TX_AUTO_SEQ; 1946 /* XXX honor ACM */ 1947 if (!ismcast) 1948 flags |= IWN_TX_NEED_ACK; 1949 1950 if (ismcast || type != IEEE80211_FC0_TYPE_DATA) 1951 id = IWN_ID_BROADCAST; 1952 else 1953 id = IWN_ID_BSS; 1954 1955 /* check if RTS/CTS or CTS-to-self protection must be used */ 1956 if (!ismcast) { 1957 /* multicast frames are not sent at OFDM rates in 802.11b/g */ 1958 if (m0->m_pkthdr.len+IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 1959 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 1960 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1961 IWN_RATE_IS_OFDM(rate)) { 1962 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 1963 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP; 1964 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 1965 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 1966 } 1967 } 1968 1969 if (type == IEEE80211_FC0_TYPE_MGT) { 1970 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1971 1972 /* tell h/w to set timestamp in probe responses */ 1973 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1974 flags |= IWN_TX_INSERT_TSTAMP; 1975 1976 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 1977 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 1978 timeout = htole16(3); 1979 else 1980 timeout = htole16(2); 1981 } else 1982 timeout = htole16(0); 1983 1984 if (hdrlen & 3) { 1985 /* first segment's length must be a multiple of 4 */ 1986 flags |= IWN_TX_NEED_PADDING; 1987 pad = 4 - (hdrlen & 3); 1988 } else 1989 pad = 0; 1990 1991 desc = &ring->desc[ring->cur]; 1992 data = &ring->data[ring->cur]; 1993 1994 cmd = &ring->cmd[ring->cur]; 1995 cmd->code = IWN_CMD_TX_DATA; 1996 cmd->flags = 0; 1997 cmd->qid = ring->qid; 1998 cmd->idx = ring->cur; 1999 2000 tx = (struct iwn_cmd_data *)cmd->data; 2001 /* NB: no need to bzero tx, all fields are reinitialized here */ 2002 tx->id = id; 2003 tx->flags = htole32(flags); 2004 tx->len = htole16(m0->m_pkthdr.len); 2005 tx->rate = iwn_plcp_signal(rate); 2006 tx->rts_ntries = 60; /* XXX? */ 2007 tx->data_ntries = 15; /* XXX? */ 2008 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 2009 tx->timeout = timeout; 2010 2011 if (k != NULL) { 2012 /* XXX fill in */; 2013 } else 2014 tx->security = 0; 2015 2016 /* XXX alternate between Ant A and Ant B ? */ 2017 tx->rflags = IWN_RFLAG_ANT_B; 2018 if (tx->id == IWN_ID_BROADCAST) { 2019 tx->ridx = IWN_MAX_TX_RETRIES - 1; 2020 if (!IWN_RATE_IS_OFDM(rate)) 2021 tx->rflags |= IWN_RFLAG_CCK; 2022 } else { 2023 tx->ridx = 0; 2024 /* tell adapter to ignore rflags */ 2025 tx->flags |= htole32(IWN_TX_USE_NODE_RATE); 2026 } 2027 2028 /* copy and trim IEEE802.11 header */ 2029 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 2030 m_adj(m0, hdrlen); 2031 2032 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m0, segs, 2033 &nsegs, BUS_DMA_NOWAIT); 2034 if (error != 0) { 2035 if (error == EFBIG) { 2036 /* too many fragments, linearize */ 2037 mnew = m_collapse(m0, M_DONTWAIT, IWN_MAX_SCATTER); 2038 if (mnew == NULL) { 2039 IWN_UNLOCK(sc); 2040 device_printf(sc->sc_dev, 2041 "%s: could not defrag mbuf\n", __func__); 2042 m_freem(m0); 2043 return ENOBUFS; 2044 } 2045 m0 = mnew; 2046 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, 2047 data->map, m0, segs, &nsegs, BUS_DMA_NOWAIT); 2048 } 2049 if (error != 0) { 2050 IWN_UNLOCK(sc); 2051 device_printf(sc->sc_dev, 2052 "%s: bus_dmamap_load_mbuf_sg failed, error %d\n", 2053 __func__, error); 2054 m_freem(m0); 2055 return error; 2056 } 2057 } 2058 2059 data->m = m0; 2060 data->ni = ni; 2061 2062 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 2063 __func__, ring->qid, ring->cur, m0->m_pkthdr.len, nsegs); 2064 2065 paddr = ring->cmd_dma.paddr + ring->cur * sizeof (struct iwn_tx_cmd); 2066 tx->loaddr = htole32(paddr + 4 + 2067 offsetof(struct iwn_cmd_data, ntries)); 2068 tx->hiaddr = 0; /* limit to 32-bit physical addresses */ 2069 2070 /* first scatter/gather segment is used by the tx data command */ 2071 IWN_SET_DESC_NSEGS(desc, 1 + nsegs); 2072 IWN_SET_DESC_SEG(desc, 0, paddr, 4 + sizeof (*tx) + hdrlen + pad); 2073 for (i = 1; i <= nsegs; i++) { 2074 IWN_SET_DESC_SEG(desc, i, segs[i - 1].ds_addr, 2075 segs[i - 1].ds_len); 2076 } 2077 sc->shared->len[ring->qid][ring->cur] = 2078 htole16(hdrlen + m0->m_pkthdr.len + 8); 2079 2080 if (ring->cur < IWN_TX_WINDOW) 2081 sc->shared->len[ring->qid][ring->cur + IWN_TX_RING_COUNT] = 2082 htole16(hdrlen + m0->m_pkthdr.len + 8); 2083 2084 ring->queued++; 2085 2086 /* kick Tx ring */ 2087 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 2088 IWN_WRITE(sc, IWN_TX_WIDX, ring->qid << 8 | ring->cur); 2089 2090 ifp->if_opackets++; 2091 sc->sc_tx_timer = 5; 2092 2093 return 0; 2094 } 2095 2096 void 2097 iwn_start(struct ifnet *ifp) 2098 { 2099 struct iwn_softc *sc = ifp->if_softc; 2100 2101 IWN_LOCK(sc); 2102 iwn_start_locked(ifp); 2103 IWN_UNLOCK(sc); 2104 } 2105 2106 void 2107 iwn_start_locked(struct ifnet *ifp) 2108 { 2109 struct iwn_softc *sc = ifp->if_softc; 2110 struct ieee80211_node *ni; 2111 struct iwn_tx_ring *txq; 2112 struct mbuf *m; 2113 int pri; 2114 2115 IWN_LOCK_ASSERT(sc); 2116 2117 for (;;) { 2118 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 2119 if (m == NULL) 2120 break; 2121 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2122 pri = M_WME_GETAC(m); 2123 txq = &sc->txq[pri]; 2124 if (txq->queued >= IWN_TX_RING_COUNT - 8) { 2125 /* XXX not right */ 2126 /* ring is nearly full, stop flow */ 2127 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2128 } 2129 if (iwn_tx_data(sc, m, ni, txq) != 0) { 2130 ifp->if_oerrors++; 2131 ieee80211_free_node(ni); 2132 break; 2133 } 2134 } 2135 } 2136 2137 static int 2138 iwn_tx_handoff(struct iwn_softc *sc, 2139 struct iwn_tx_ring *ring, 2140 struct iwn_tx_cmd *cmd, 2141 struct iwn_cmd_data *tx, 2142 struct ieee80211_node *ni, 2143 struct mbuf *m0, u_int hdrlen, int pad) 2144 { 2145 struct ifnet *ifp = sc->sc_ifp; 2146 struct iwn_tx_desc *desc; 2147 struct iwn_tx_data *data; 2148 bus_addr_t paddr; 2149 struct mbuf *mnew; 2150 int error, nsegs, i; 2151 bus_dma_segment_t segs[IWN_MAX_SCATTER]; 2152 2153 /* copy and trim IEEE802.11 header */ 2154 memcpy((uint8_t *)(tx + 1), mtod(m0, uint8_t *), hdrlen); 2155 m_adj(m0, hdrlen); 2156 2157 desc = &ring->desc[ring->cur]; 2158 data = &ring->data[ring->cur]; 2159 2160 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, m0, segs, 2161 &nsegs, BUS_DMA_NOWAIT); 2162 if (error != 0) { 2163 if (error == EFBIG) { 2164 /* too many fragments, linearize */ 2165 mnew = m_collapse(m0, M_DONTWAIT, IWN_MAX_SCATTER); 2166 if (mnew == NULL) { 2167 IWN_UNLOCK(sc); 2168 device_printf(sc->sc_dev, 2169 "%s: could not defrag mbuf\n", __func__); 2170 m_freem(m0); 2171 return ENOBUFS; 2172 } 2173 m0 = mnew; 2174 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, 2175 data->map, m0, segs, &nsegs, BUS_DMA_NOWAIT); 2176 } 2177 if (error != 0) { 2178 IWN_UNLOCK(sc); 2179 device_printf(sc->sc_dev, 2180 "%s: bus_dmamap_load_mbuf_sg failed, error %d\n", 2181 __func__, error); 2182 m_freem(m0); 2183 return error; 2184 } 2185 } 2186 2187 data->m = m0; 2188 data->ni = ni; 2189 2190 DPRINTF(sc, IWN_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 2191 __func__, ring->qid, ring->cur, m0->m_pkthdr.len, nsegs); 2192 2193 paddr = ring->cmd_dma.paddr + ring->cur * sizeof (struct iwn_tx_cmd); 2194 tx->loaddr = htole32(paddr + 4 + 2195 offsetof(struct iwn_cmd_data, ntries)); 2196 tx->hiaddr = 0; /* limit to 32-bit physical addresses */ 2197 2198 /* first scatter/gather segment is used by the tx data command */ 2199 IWN_SET_DESC_NSEGS(desc, 1 + nsegs); 2200 IWN_SET_DESC_SEG(desc, 0, paddr, 4 + sizeof (*tx) + hdrlen + pad); 2201 for (i = 1; i <= nsegs; i++) { 2202 IWN_SET_DESC_SEG(desc, i, segs[i - 1].ds_addr, 2203 segs[i - 1].ds_len); 2204 } 2205 sc->shared->len[ring->qid][ring->cur] = 2206 htole16(hdrlen + m0->m_pkthdr.len + 8); 2207 2208 if (ring->cur < IWN_TX_WINDOW) 2209 sc->shared->len[ring->qid][ring->cur + IWN_TX_RING_COUNT] = 2210 htole16(hdrlen + m0->m_pkthdr.len + 8); 2211 2212 ring->queued++; 2213 2214 /* kick Tx ring */ 2215 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 2216 IWN_WRITE(sc, IWN_TX_WIDX, ring->qid << 8 | ring->cur); 2217 2218 ifp->if_opackets++; 2219 sc->sc_tx_timer = 5; 2220 2221 return 0; 2222 } 2223 2224 static int 2225 iwn_tx_data_raw(struct iwn_softc *sc, struct mbuf *m0, 2226 struct ieee80211_node *ni, struct iwn_tx_ring *ring, 2227 const struct ieee80211_bpf_params *params) 2228 { 2229 struct ieee80211vap *vap = ni->ni_vap; 2230 struct iwn_tx_cmd *cmd; 2231 struct iwn_cmd_data *tx; 2232 struct ieee80211_frame *wh; 2233 uint32_t flags; 2234 uint8_t type, subtype; 2235 u_int hdrlen; 2236 int rate, pad; 2237 2238 IWN_LOCK_ASSERT(sc); 2239 2240 wh = mtod(m0, struct ieee80211_frame *); 2241 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2242 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 2243 hdrlen = ieee80211_anyhdrsize(wh); 2244 2245 flags = IWN_TX_AUTO_SEQ; 2246 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 2247 flags |= IWN_TX_NEED_ACK; 2248 if (params->ibp_flags & IEEE80211_BPF_RTS) 2249 flags |= IWN_TX_NEED_RTS | IWN_TX_FULL_TXOP; 2250 if (params->ibp_flags & IEEE80211_BPF_CTS) 2251 flags |= IWN_TX_NEED_CTS | IWN_TX_FULL_TXOP; 2252 if (type == IEEE80211_FC0_TYPE_MGT && 2253 subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) { 2254 /* tell h/w to set timestamp in probe responses */ 2255 flags |= IWN_TX_INSERT_TSTAMP; 2256 } 2257 if (hdrlen & 3) { 2258 /* first segment's length must be a multiple of 4 */ 2259 flags |= IWN_TX_NEED_PADDING; 2260 pad = 4 - (hdrlen & 3); 2261 } else 2262 pad = 0; 2263 2264 /* pick a tx rate */ 2265 rate = params->ibp_rate0; 2266 2267 if (ieee80211_radiotap_active_vap(vap)) { 2268 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 2269 2270 tap->wt_flags = 0; 2271 tap->wt_rate = rate; 2272 2273 ieee80211_radiotap_tx(vap, m0); 2274 } 2275 2276 cmd = &ring->cmd[ring->cur]; 2277 cmd->code = IWN_CMD_TX_DATA; 2278 cmd->flags = 0; 2279 cmd->qid = ring->qid; 2280 cmd->idx = ring->cur; 2281 2282 tx = (struct iwn_cmd_data *)cmd->data; 2283 /* NB: no need to bzero tx, all fields are reinitialized here */ 2284 tx->id = IWN_ID_BROADCAST; 2285 tx->flags = htole32(flags); 2286 tx->len = htole16(m0->m_pkthdr.len); 2287 tx->rate = iwn_plcp_signal(rate); 2288 tx->rts_ntries = params->ibp_try1; /* XXX? */ 2289 tx->data_ntries = params->ibp_try0; 2290 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 2291 /* XXX use try count? */ 2292 if (type == IEEE80211_FC0_TYPE_MGT) { 2293 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 2294 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 2295 tx->timeout = htole16(3); 2296 else 2297 tx->timeout = htole16(2); 2298 } else 2299 tx->timeout = htole16(0); 2300 tx->security = 0; 2301 /* XXX alternate between Ant A and Ant B ? */ 2302 tx->rflags = IWN_RFLAG_ANT_B; /* XXX params->ibp_pri >> 2 */ 2303 tx->ridx = IWN_MAX_TX_RETRIES - 1; 2304 if (!IWN_RATE_IS_OFDM(rate)) 2305 tx->rflags |= IWN_RFLAG_CCK; 2306 2307 return iwn_tx_handoff(sc, ring, cmd, tx, ni, m0, hdrlen, pad); 2308 } 2309 2310 static int 2311 iwn_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2312 const struct ieee80211_bpf_params *params) 2313 { 2314 struct ieee80211com *ic = ni->ni_ic; 2315 struct ifnet *ifp = ic->ic_ifp; 2316 struct iwn_softc *sc = ifp->if_softc; 2317 struct iwn_tx_ring *txq; 2318 int error; 2319 2320 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 2321 ieee80211_free_node(ni); 2322 m_freem(m); 2323 return ENETDOWN; 2324 } 2325 2326 IWN_LOCK(sc); 2327 if (params == NULL) 2328 txq = &sc->txq[M_WME_GETAC(m)]; 2329 else 2330 txq = &sc->txq[params->ibp_pri & 3]; 2331 if (txq->queued >= IWN_TX_RING_COUNT - 8) { 2332 /* XXX not right */ 2333 /* ring is nearly full, stop flow */ 2334 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2335 } 2336 if (params == NULL) { 2337 /* 2338 * Legacy path; interpret frame contents to decide 2339 * precisely how to send the frame. 2340 */ 2341 error = iwn_tx_data(sc, m, ni, txq); 2342 } else { 2343 /* 2344 * Caller supplied explicit parameters to use in 2345 * sending the frame. 2346 */ 2347 error = iwn_tx_data_raw(sc, m, ni, txq, params); 2348 } 2349 if (error != 0) { 2350 /* NB: m is reclaimed on tx failure */ 2351 ieee80211_free_node(ni); 2352 ifp->if_oerrors++; 2353 } 2354 IWN_UNLOCK(sc); 2355 return error; 2356 } 2357 2358 static void 2359 iwn_watchdog(struct iwn_softc *sc) 2360 { 2361 if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) { 2362 struct ifnet *ifp = sc->sc_ifp; 2363 struct ieee80211com *ic = ifp->if_l2com; 2364 2365 if_printf(ifp, "device timeout\n"); 2366 ieee80211_runtask(ic, &sc->sc_reinit_task); 2367 } 2368 } 2369 2370 int 2371 iwn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 2372 { 2373 struct iwn_softc *sc = ifp->if_softc; 2374 struct ieee80211com *ic = ifp->if_l2com; 2375 struct ifreq *ifr = (struct ifreq *) data; 2376 int error = 0, startall = 0; 2377 2378 switch (cmd) { 2379 case SIOCSIFFLAGS: 2380 IWN_LOCK(sc); 2381 if (ifp->if_flags & IFF_UP) { 2382 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2383 iwn_init_locked(sc); 2384 startall = 1; 2385 } 2386 } else { 2387 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2388 iwn_stop_locked(sc); 2389 } 2390 IWN_UNLOCK(sc); 2391 if (startall) 2392 ieee80211_start_all(ic); 2393 break; 2394 case SIOCGIFMEDIA: 2395 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 2396 break; 2397 case SIOCGIFADDR: 2398 error = ether_ioctl(ifp, cmd, data); 2399 break; 2400 default: 2401 error = EINVAL; 2402 break; 2403 } 2404 return error; 2405 } 2406 2407 void 2408 iwn_read_eeprom(struct iwn_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 2409 { 2410 char domain[4]; 2411 uint16_t val; 2412 int i, error; 2413 2414 if ((error = iwn_eeprom_lock(sc)) != 0) { 2415 device_printf(sc->sc_dev, 2416 "%s: could not lock EEPROM, error %d\n", __func__, error); 2417 return; 2418 } 2419 /* read and print regulatory domain */ 2420 iwn_read_prom_data(sc, IWN_EEPROM_DOMAIN, domain, 4); 2421 device_printf(sc->sc_dev,"Reg Domain: %.4s", domain); 2422 2423 /* read and print MAC address */ 2424 iwn_read_prom_data(sc, IWN_EEPROM_MAC, macaddr, 6); 2425 printf(", address %6D\n", macaddr, ":"); 2426 2427 /* read the list of authorized channels */ 2428 iwn_read_eeprom_channels(sc); 2429 2430 /* read maximum allowed Tx power for 2GHz and 5GHz bands */ 2431 iwn_read_prom_data(sc, IWN_EEPROM_MAXPOW, &val, 2); 2432 sc->maxpwr2GHz = val & 0xff; 2433 sc->maxpwr5GHz = val >> 8; 2434 /* check that EEPROM values are correct */ 2435 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50) 2436 sc->maxpwr5GHz = 38; 2437 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50) 2438 sc->maxpwr2GHz = 38; 2439 DPRINTF(sc, IWN_DEBUG_RESET, "maxpwr 2GHz=%d 5GHz=%d\n", 2440 sc->maxpwr2GHz, sc->maxpwr5GHz); 2441 2442 /* read voltage at which samples were taken */ 2443 iwn_read_prom_data(sc, IWN_EEPROM_VOLTAGE, &val, 2); 2444 sc->eeprom_voltage = (int16_t)le16toh(val); 2445 DPRINTF(sc, IWN_DEBUG_RESET, "voltage=%d (in 0.3V)\n", 2446 sc->eeprom_voltage); 2447 2448 /* read power groups */ 2449 iwn_read_prom_data(sc, IWN_EEPROM_BANDS, sc->bands, sizeof sc->bands); 2450 #ifdef IWN_DEBUG 2451 if (sc->sc_debug & IWN_DEBUG_ANY) { 2452 for (i = 0; i < IWN_NBANDS; i++) 2453 iwn_print_power_group(sc, i); 2454 } 2455 #endif 2456 iwn_eeprom_unlock(sc); 2457 } 2458 2459 struct iwn_chan_band { 2460 uint32_t addr; /* offset in EEPROM */ 2461 uint32_t flags; /* net80211 flags */ 2462 uint8_t nchan; 2463 #define IWN_MAX_CHAN_PER_BAND 14 2464 uint8_t chan[IWN_MAX_CHAN_PER_BAND]; 2465 }; 2466 2467 static void 2468 iwn_read_eeprom_band(struct iwn_softc *sc, const struct iwn_chan_band *band) 2469 { 2470 struct ifnet *ifp = sc->sc_ifp; 2471 struct ieee80211com *ic = ifp->if_l2com; 2472 struct iwn_eeprom_chan channels[IWN_MAX_CHAN_PER_BAND]; 2473 struct ieee80211_channel *c; 2474 int i, chan, flags; 2475 2476 iwn_read_prom_data(sc, band->addr, channels, 2477 band->nchan * sizeof (struct iwn_eeprom_chan)); 2478 2479 for (i = 0; i < band->nchan; i++) { 2480 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) { 2481 DPRINTF(sc, IWN_DEBUG_RESET, 2482 "skip chan %d flags 0x%x maxpwr %d\n", 2483 band->chan[i], channels[i].flags, 2484 channels[i].maxpwr); 2485 continue; 2486 } 2487 chan = band->chan[i]; 2488 2489 /* translate EEPROM flags to net80211 */ 2490 flags = 0; 2491 if ((channels[i].flags & IWN_EEPROM_CHAN_ACTIVE) == 0) 2492 flags |= IEEE80211_CHAN_PASSIVE; 2493 if ((channels[i].flags & IWN_EEPROM_CHAN_IBSS) == 0) 2494 flags |= IEEE80211_CHAN_NOADHOC; 2495 if (channels[i].flags & IWN_EEPROM_CHAN_RADAR) { 2496 flags |= IEEE80211_CHAN_DFS; 2497 /* XXX apparently IBSS may still be marked */ 2498 flags |= IEEE80211_CHAN_NOADHOC; 2499 } 2500 2501 DPRINTF(sc, IWN_DEBUG_RESET, 2502 "add chan %d flags 0x%x maxpwr %d\n", 2503 chan, channels[i].flags, channels[i].maxpwr); 2504 2505 c = &ic->ic_channels[ic->ic_nchans++]; 2506 c->ic_ieee = chan; 2507 c->ic_freq = ieee80211_ieee2mhz(chan, band->flags); 2508 c->ic_maxregpower = channels[i].maxpwr; 2509 c->ic_maxpower = 2*c->ic_maxregpower; 2510 if (band->flags & IEEE80211_CHAN_2GHZ) { 2511 /* G =>'s B is supported */ 2512 c->ic_flags = IEEE80211_CHAN_B | flags; 2513 2514 c = &ic->ic_channels[ic->ic_nchans++]; 2515 c[0] = c[-1]; 2516 c->ic_flags = IEEE80211_CHAN_G | flags; 2517 } else { /* 5GHz band */ 2518 c->ic_flags = IEEE80211_CHAN_A | flags; 2519 } 2520 /* XXX no constraints on using HT20 */ 2521 /* add HT20, HT40 added separately */ 2522 c = &ic->ic_channels[ic->ic_nchans++]; 2523 c[0] = c[-1]; 2524 c->ic_flags |= IEEE80211_CHAN_HT20; 2525 /* XXX NARROW =>'s 1/2 and 1/4 width? */ 2526 } 2527 } 2528 2529 static void 2530 iwn_read_eeprom_ht40(struct iwn_softc *sc, const struct iwn_chan_band *band) 2531 { 2532 struct ifnet *ifp = sc->sc_ifp; 2533 struct ieee80211com *ic = ifp->if_l2com; 2534 struct iwn_eeprom_chan channels[IWN_MAX_CHAN_PER_BAND]; 2535 struct ieee80211_channel *c, *cent, *extc; 2536 int i; 2537 2538 iwn_read_prom_data(sc, band->addr, channels, 2539 band->nchan * sizeof (struct iwn_eeprom_chan)); 2540 2541 for (i = 0; i < band->nchan; i++) { 2542 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID) || 2543 !(channels[i].flags & IWN_EEPROM_CHAN_WIDE)) { 2544 DPRINTF(sc, IWN_DEBUG_RESET, 2545 "skip chan %d flags 0x%x maxpwr %d\n", 2546 band->chan[i], channels[i].flags, 2547 channels[i].maxpwr); 2548 continue; 2549 } 2550 /* 2551 * Each entry defines an HT40 channel pair; find the 2552 * center channel, then the extension channel above. 2553 */ 2554 cent = ieee80211_find_channel_byieee(ic, band->chan[i], 2555 band->flags & ~IEEE80211_CHAN_HT); 2556 if (cent == NULL) { /* XXX shouldn't happen */ 2557 device_printf(sc->sc_dev, 2558 "%s: no entry for channel %d\n", 2559 __func__, band->chan[i]); 2560 continue; 2561 } 2562 extc = ieee80211_find_channel(ic, cent->ic_freq+20, 2563 band->flags & ~IEEE80211_CHAN_HT); 2564 if (extc == NULL) { 2565 DPRINTF(sc, IWN_DEBUG_RESET, 2566 "skip chan %d, extension channel not found\n", 2567 band->chan[i]); 2568 continue; 2569 } 2570 2571 DPRINTF(sc, IWN_DEBUG_RESET, 2572 "add ht40 chan %d flags 0x%x maxpwr %d\n", 2573 band->chan[i], channels[i].flags, channels[i].maxpwr); 2574 2575 c = &ic->ic_channels[ic->ic_nchans++]; 2576 c[0] = cent[0]; 2577 c->ic_extieee = extc->ic_ieee; 2578 c->ic_flags &= ~IEEE80211_CHAN_HT; 2579 c->ic_flags |= IEEE80211_CHAN_HT40U; 2580 c = &ic->ic_channels[ic->ic_nchans++]; 2581 c[0] = extc[0]; 2582 c->ic_extieee = cent->ic_ieee; 2583 c->ic_flags &= ~IEEE80211_CHAN_HT; 2584 c->ic_flags |= IEEE80211_CHAN_HT40D; 2585 } 2586 } 2587 2588 static void 2589 iwn_read_eeprom_channels(struct iwn_softc *sc) 2590 { 2591 #define N(a) (sizeof(a)/sizeof(a[0])) 2592 static const struct iwn_chan_band iwn_bands[] = { 2593 { IWN_EEPROM_BAND1, IEEE80211_CHAN_G, 14, 2594 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 } }, 2595 { IWN_EEPROM_BAND2, IEEE80211_CHAN_A, 13, 2596 { 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 } }, 2597 { IWN_EEPROM_BAND3, IEEE80211_CHAN_A, 12, 2598 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 } }, 2599 { IWN_EEPROM_BAND4, IEEE80211_CHAN_A, 11, 2600 { 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 } }, 2601 { IWN_EEPROM_BAND5, IEEE80211_CHAN_A, 6, 2602 { 145, 149, 153, 157, 161, 165 } }, 2603 { IWN_EEPROM_BAND6, IEEE80211_CHAN_G | IEEE80211_CHAN_HT40, 7, 2604 { 1, 2, 3, 4, 5, 6, 7 } }, 2605 { IWN_EEPROM_BAND7, IEEE80211_CHAN_A | IEEE80211_CHAN_HT40, 11, 2606 { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 } } 2607 }; 2608 struct ifnet *ifp = sc->sc_ifp; 2609 struct ieee80211com *ic = ifp->if_l2com; 2610 int i; 2611 2612 /* read the list of authorized channels */ 2613 for (i = 0; i < N(iwn_bands)-2; i++) 2614 iwn_read_eeprom_band(sc, &iwn_bands[i]); 2615 for (; i < N(iwn_bands); i++) 2616 iwn_read_eeprom_ht40(sc, &iwn_bands[i]); 2617 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 2618 #undef N 2619 } 2620 2621 #ifdef IWN_DEBUG 2622 void 2623 iwn_print_power_group(struct iwn_softc *sc, int i) 2624 { 2625 struct iwn_eeprom_band *band = &sc->bands[i]; 2626 struct iwn_eeprom_chan_samples *chans = band->chans; 2627 int j, c; 2628 2629 printf("===band %d===\n", i); 2630 printf("chan lo=%d, chan hi=%d\n", band->lo, band->hi); 2631 printf("chan1 num=%d\n", chans[0].num); 2632 for (c = 0; c < IWN_NTXCHAINS; c++) { 2633 for (j = 0; j < IWN_NSAMPLES; j++) { 2634 printf("chain %d, sample %d: temp=%d gain=%d " 2635 "power=%d pa_det=%d\n", c, j, 2636 chans[0].samples[c][j].temp, 2637 chans[0].samples[c][j].gain, 2638 chans[0].samples[c][j].power, 2639 chans[0].samples[c][j].pa_det); 2640 } 2641 } 2642 printf("chan2 num=%d\n", chans[1].num); 2643 for (c = 0; c < IWN_NTXCHAINS; c++) { 2644 for (j = 0; j < IWN_NSAMPLES; j++) { 2645 printf("chain %d, sample %d: temp=%d gain=%d " 2646 "power=%d pa_det=%d\n", c, j, 2647 chans[1].samples[c][j].temp, 2648 chans[1].samples[c][j].gain, 2649 chans[1].samples[c][j].power, 2650 chans[1].samples[c][j].pa_det); 2651 } 2652 } 2653 } 2654 #endif 2655 2656 /* 2657 * Send a command to the firmware. 2658 */ 2659 int 2660 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async) 2661 { 2662 struct iwn_tx_ring *ring = &sc->txq[4]; 2663 struct iwn_tx_desc *desc; 2664 struct iwn_tx_cmd *cmd; 2665 bus_addr_t paddr; 2666 2667 IWN_LOCK_ASSERT(sc); 2668 2669 KASSERT(size <= sizeof cmd->data, ("Command too big")); 2670 2671 desc = &ring->desc[ring->cur]; 2672 cmd = &ring->cmd[ring->cur]; 2673 2674 cmd->code = code; 2675 cmd->flags = 0; 2676 cmd->qid = ring->qid; 2677 cmd->idx = ring->cur; 2678 memcpy(cmd->data, buf, size); 2679 2680 paddr = ring->cmd_dma.paddr + ring->cur * sizeof (struct iwn_tx_cmd); 2681 2682 IWN_SET_DESC_NSEGS(desc, 1); 2683 IWN_SET_DESC_SEG(desc, 0, paddr, 4 + size); 2684 sc->shared->len[ring->qid][ring->cur] = htole16(8); 2685 if (ring->cur < IWN_TX_WINDOW) { 2686 sc->shared->len[ring->qid][ring->cur + IWN_TX_RING_COUNT] = 2687 htole16(8); 2688 } 2689 2690 DPRINTF(sc, IWN_DEBUG_CMD, "%s: %s (0x%x) flags %d qid %d idx %d\n", 2691 __func__, iwn_intr_str(cmd->code), cmd->code, 2692 cmd->flags, cmd->qid, cmd->idx); 2693 2694 /* kick cmd ring */ 2695 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 2696 IWN_WRITE(sc, IWN_TX_WIDX, ring->qid << 8 | ring->cur); 2697 2698 return async ? 0 : msleep(cmd, &sc->sc_mtx, PCATCH, "iwncmd", hz); 2699 } 2700 2701 static const uint8_t iwn_ridx_to_plcp[] = { 2702 10, 20, 55, 110, /* CCK */ 2703 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3, 0x3 /* OFDM R1-R4 */ 2704 }; 2705 static const uint8_t iwn_siso_mcs_to_plcp[] = { 2706 0, 0, 0, 0, /* CCK */ 2707 0, 0, 1, 2, 3, 4, 5, 6, 7 /* HT */ 2708 }; 2709 static const uint8_t iwn_mimo_mcs_to_plcp[] = { 2710 0, 0, 0, 0, /* CCK */ 2711 8, 8, 9, 10, 11, 12, 13, 14, 15 /* HT */ 2712 }; 2713 static const uint8_t iwn_prev_ridx[] = { 2714 /* NB: allow fallback from CCK11 to OFDM9 and from OFDM6 to CCK5 */ 2715 0, 0, 1, 5, /* CCK */ 2716 2, 4, 3, 6, 7, 8, 9, 10, 10 /* OFDM */ 2717 }; 2718 2719 /* 2720 * Configure hardware link parameters for the specified 2721 * node operating on the specified channel. 2722 */ 2723 int 2724 iwn_set_link_quality(struct iwn_softc *sc, uint8_t id, 2725 const struct ieee80211_channel *c, int async) 2726 { 2727 struct iwn_cmd_link_quality lq; 2728 int i, ridx; 2729 2730 memset(&lq, 0, sizeof(lq)); 2731 lq.id = id; 2732 if (IEEE80211_IS_CHAN_HT(c)) { 2733 lq.mimo = 1; 2734 lq.ssmask = 0x1; 2735 } else 2736 lq.ssmask = 0x2; 2737 2738 if (id == IWN_ID_BSS) 2739 ridx = IWN_RATE_OFDM54; 2740 else if (IEEE80211_IS_CHAN_A(c)) 2741 ridx = IWN_RATE_OFDM6; 2742 else 2743 ridx = IWN_RATE_CCK1; 2744 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) { 2745 /* XXX toggle antenna for retry patterns */ 2746 if (IEEE80211_IS_CHAN_HT40(c)) { 2747 lq.table[i].rate = iwn_mimo_mcs_to_plcp[ridx] 2748 | IWN_RATE_MCS; 2749 lq.table[i].rflags = IWN_RFLAG_HT 2750 | IWN_RFLAG_HT40 2751 | IWN_RFLAG_ANT_A; 2752 /* XXX shortGI */ 2753 } else if (IEEE80211_IS_CHAN_HT(c)) { 2754 lq.table[i].rate = iwn_siso_mcs_to_plcp[ridx] 2755 | IWN_RATE_MCS; 2756 lq.table[i].rflags = IWN_RFLAG_HT 2757 | IWN_RFLAG_ANT_A; 2758 /* XXX shortGI */ 2759 } else { 2760 lq.table[i].rate = iwn_ridx_to_plcp[ridx]; 2761 if (ridx <= IWN_RATE_CCK11) 2762 lq.table[i].rflags = IWN_RFLAG_CCK; 2763 lq.table[i].rflags |= IWN_RFLAG_ANT_B; 2764 } 2765 ridx = iwn_prev_ridx[ridx]; 2766 } 2767 2768 lq.dsmask = 0x3; 2769 lq.ampdu_disable = 3; 2770 lq.ampdu_limit = htole16(4000); 2771 #ifdef IWN_DEBUG 2772 if (sc->sc_debug & IWN_DEBUG_STATE) { 2773 printf("%s: set link quality for node %d, mimo %d ssmask %d\n", 2774 __func__, id, lq.mimo, lq.ssmask); 2775 printf("%s:", __func__); 2776 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) 2777 printf(" %d:%x", lq.table[i].rate, lq.table[i].rflags); 2778 printf("\n"); 2779 } 2780 #endif 2781 return iwn_cmd(sc, IWN_CMD_TX_LINK_QUALITY, &lq, sizeof(lq), async); 2782 } 2783 2784 #if 0 2785 2786 /* 2787 * Install a pairwise key into the hardware. 2788 */ 2789 int 2790 iwn_set_key(struct ieee80211com *ic, struct ieee80211_node *ni, 2791 const struct ieee80211_key *k) 2792 { 2793 struct iwn_softc *sc = ic->ic_softc; 2794 struct iwn_node_info node; 2795 2796 if (k->k_flags & IEEE80211_KEY_GROUP) 2797 return 0; 2798 2799 memset(&node, 0, sizeof node); 2800 2801 switch (k->k_cipher) { 2802 case IEEE80211_CIPHER_CCMP: 2803 node.security = htole16(IWN_CIPHER_CCMP); 2804 memcpy(node.key, k->k_key, k->k_len); 2805 break; 2806 default: 2807 return 0; 2808 } 2809 2810 node.id = IWN_ID_BSS; 2811 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 2812 node.control = IWN_NODE_UPDATE; 2813 node.flags = IWN_FLAG_SET_KEY; 2814 2815 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &node, sizeof node, 1); 2816 } 2817 #endif 2818 2819 int 2820 iwn_wme_update(struct ieee80211com *ic) 2821 { 2822 #define IWN_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */ 2823 #define IWN_TXOP_TO_US(v) (v<<5) 2824 struct iwn_softc *sc = ic->ic_ifp->if_softc; 2825 struct iwn_edca_params cmd; 2826 int i; 2827 2828 memset(&cmd, 0, sizeof cmd); 2829 cmd.flags = htole32(IWN_EDCA_UPDATE); 2830 for (i = 0; i < WME_NUM_AC; i++) { 2831 const struct wmeParams *wmep = 2832 &ic->ic_wme.wme_chanParams.cap_wmeParams[i]; 2833 cmd.ac[i].aifsn = wmep->wmep_aifsn; 2834 cmd.ac[i].cwmin = htole16(IWN_EXP2(wmep->wmep_logcwmin)); 2835 cmd.ac[i].cwmax = htole16(IWN_EXP2(wmep->wmep_logcwmax)); 2836 cmd.ac[i].txoplimit = 2837 htole16(IWN_TXOP_TO_US(wmep->wmep_txopLimit)); 2838 } 2839 IWN_LOCK(sc); 2840 (void) iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1 /*async*/); 2841 IWN_UNLOCK(sc); 2842 return 0; 2843 #undef IWN_TXOP_TO_US 2844 #undef IWN_EXP2 2845 } 2846 2847 void 2848 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on) 2849 { 2850 struct iwn_cmd_led led; 2851 2852 led.which = which; 2853 led.unit = htole32(100000); /* on/off in unit of 100ms */ 2854 led.off = off; 2855 led.on = on; 2856 2857 (void) iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1); 2858 } 2859 2860 /* 2861 * Set the critical temperature at which the firmware will automatically stop 2862 * the radio transmitter. 2863 */ 2864 int 2865 iwn_set_critical_temp(struct iwn_softc *sc) 2866 { 2867 struct iwn_ucode_info *uc = &sc->ucode_info; 2868 struct iwn_critical_temp crit; 2869 uint32_t r1, r2, r3, temp; 2870 2871 r1 = le32toh(uc->temp[0].chan20MHz); 2872 r2 = le32toh(uc->temp[1].chan20MHz); 2873 r3 = le32toh(uc->temp[2].chan20MHz); 2874 /* inverse function of iwn_get_temperature() */ 2875 temp = r2 + (IWN_CTOK(110) * (r3 - r1)) / 259; 2876 2877 IWN_WRITE(sc, IWN_UCODE_CLR, IWN_CTEMP_STOP_RF); 2878 2879 memset(&crit, 0, sizeof crit); 2880 crit.tempR = htole32(temp); 2881 DPRINTF(sc, IWN_DEBUG_RESET, "setting critical temp to %u\n", temp); 2882 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0); 2883 } 2884 2885 void 2886 iwn_enable_tsf(struct iwn_softc *sc, struct ieee80211_node *ni) 2887 { 2888 struct iwn_cmd_tsf tsf; 2889 uint64_t val, mod; 2890 2891 memset(&tsf, 0, sizeof tsf); 2892 memcpy(&tsf.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 2893 tsf.bintval = htole16(ni->ni_intval); 2894 tsf.lintval = htole16(10); 2895 2896 /* XXX all wrong */ 2897 /* compute remaining time until next beacon */ 2898 val = (uint64_t)ni->ni_intval * 1024; /* msecs -> usecs */ 2899 DPRINTF(sc, IWN_DEBUG_ANY, "%s: val = %ju %s\n", __func__, 2900 val, val == 0 ? "correcting" : ""); 2901 if (val == 0) 2902 val = 1; 2903 mod = le64toh(tsf.tstamp) % val; 2904 tsf.binitval = htole32((uint32_t)(val - mod)); 2905 2906 DPRINTF(sc, IWN_DEBUG_RESET, "TSF bintval=%u tstamp=%ju, init=%u\n", 2907 ni->ni_intval, le64toh(tsf.tstamp), (uint32_t)(val - mod)); 2908 2909 if (iwn_cmd(sc, IWN_CMD_TSF, &tsf, sizeof tsf, 1) != 0) 2910 device_printf(sc->sc_dev, 2911 "%s: could not enable TSF\n", __func__); 2912 } 2913 2914 void 2915 iwn_power_calibration(struct iwn_softc *sc, int temp) 2916 { 2917 struct ifnet *ifp = sc->sc_ifp; 2918 struct ieee80211com *ic = ifp->if_l2com; 2919 #if 0 2920 KASSERT(ic->ic_state == IEEE80211_S_RUN, ("not running")); 2921 #endif 2922 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: temperature %d->%d\n", 2923 __func__, sc->temp, temp); 2924 2925 /* adjust Tx power if need be (delta >= 3�C) */ 2926 if (abs(temp - sc->temp) < 3) 2927 return; 2928 2929 sc->temp = temp; 2930 2931 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: set Tx power for channel %d\n", 2932 __func__, ieee80211_chan2ieee(ic, ic->ic_bsschan)); 2933 if (iwn_set_txpower(sc, ic->ic_bsschan, 1) != 0) { 2934 /* just warn, too bad for the automatic calibration... */ 2935 device_printf(sc->sc_dev, 2936 "%s: could not adjust Tx power\n", __func__); 2937 } 2938 } 2939 2940 /* 2941 * Set Tx power for a given channel (each rate has its own power settings). 2942 * This function takes into account the regulatory information from EEPROM, 2943 * the current temperature and the current voltage. 2944 */ 2945 int 2946 iwn_set_txpower(struct iwn_softc *sc, struct ieee80211_channel *ch, int async) 2947 { 2948 /* fixed-point arithmetic division using a n-bit fractional part */ 2949 #define fdivround(a, b, n) \ 2950 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 2951 /* linear interpolation */ 2952 #define interpolate(x, x1, y1, x2, y2, n) \ 2953 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 2954 2955 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 }; 2956 struct ifnet *ifp = sc->sc_ifp; 2957 struct ieee80211com *ic = ifp->if_l2com; 2958 struct iwn_ucode_info *uc = &sc->ucode_info; 2959 struct iwn_cmd_txpower cmd; 2960 struct iwn_eeprom_chan_samples *chans; 2961 const uint8_t *rf_gain, *dsp_gain; 2962 int32_t vdiff, tdiff; 2963 int i, c, grp, maxpwr; 2964 u_int chan; 2965 2966 /* get channel number */ 2967 chan = ieee80211_chan2ieee(ic, ch); 2968 2969 memset(&cmd, 0, sizeof cmd); 2970 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1; 2971 cmd.chan = chan; 2972 2973 if (IEEE80211_IS_CHAN_5GHZ(ch)) { 2974 maxpwr = sc->maxpwr5GHz; 2975 rf_gain = iwn_rf_gain_5ghz; 2976 dsp_gain = iwn_dsp_gain_5ghz; 2977 } else { 2978 maxpwr = sc->maxpwr2GHz; 2979 rf_gain = iwn_rf_gain_2ghz; 2980 dsp_gain = iwn_dsp_gain_2ghz; 2981 } 2982 2983 /* compute voltage compensation */ 2984 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7; 2985 if (vdiff > 0) 2986 vdiff *= 2; 2987 if (abs(vdiff) > 2) 2988 vdiff = 0; 2989 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 2990 "%s: voltage compensation=%d (UCODE=%d, EEPROM=%d)\n", 2991 __func__, vdiff, le32toh(uc->volt), sc->eeprom_voltage); 2992 2993 /* get channel's attenuation group */ 2994 if (chan <= 20) /* 1-20 */ 2995 grp = 4; 2996 else if (chan <= 43) /* 34-43 */ 2997 grp = 0; 2998 else if (chan <= 70) /* 44-70 */ 2999 grp = 1; 3000 else if (chan <= 124) /* 71-124 */ 3001 grp = 2; 3002 else /* 125-200 */ 3003 grp = 3; 3004 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 3005 "%s: chan %d, attenuation group=%d\n", __func__, chan, grp); 3006 3007 /* get channel's sub-band */ 3008 for (i = 0; i < IWN_NBANDS; i++) 3009 if (sc->bands[i].lo != 0 && 3010 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi) 3011 break; 3012 chans = sc->bands[i].chans; 3013 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 3014 "%s: chan %d sub-band=%d\n", __func__, chan, i); 3015 3016 for (c = 0; c < IWN_NTXCHAINS; c++) { 3017 uint8_t power, gain, temp; 3018 int maxchpwr, pwr, ridx, idx; 3019 3020 power = interpolate(chan, 3021 chans[0].num, chans[0].samples[c][1].power, 3022 chans[1].num, chans[1].samples[c][1].power, 1); 3023 gain = interpolate(chan, 3024 chans[0].num, chans[0].samples[c][1].gain, 3025 chans[1].num, chans[1].samples[c][1].gain, 1); 3026 temp = interpolate(chan, 3027 chans[0].num, chans[0].samples[c][1].temp, 3028 chans[1].num, chans[1].samples[c][1].temp, 1); 3029 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 3030 "%s: Tx chain %d: power=%d gain=%d temp=%d\n", 3031 __func__, c, power, gain, temp); 3032 3033 /* compute temperature compensation */ 3034 tdiff = ((sc->temp - temp) * 2) / tdiv[grp]; 3035 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 3036 "%s: temperature compensation=%d (current=%d, EEPROM=%d)\n", 3037 __func__, tdiff, sc->temp, temp); 3038 3039 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) { 3040 maxchpwr = ch->ic_maxpower; 3041 if ((ridx / 8) & 1) { 3042 /* MIMO: decrease Tx power (-3dB) */ 3043 maxchpwr -= 6; 3044 } 3045 3046 pwr = maxpwr - 10; 3047 3048 /* decrease power for highest OFDM rates */ 3049 if ((ridx % 8) == 5) /* 48Mbit/s */ 3050 pwr -= 5; 3051 else if ((ridx % 8) == 6) /* 54Mbit/s */ 3052 pwr -= 7; 3053 else if ((ridx % 8) == 7) /* 60Mbit/s */ 3054 pwr -= 10; 3055 3056 if (pwr > maxchpwr) 3057 pwr = maxchpwr; 3058 3059 idx = gain - (pwr - power) - tdiff - vdiff; 3060 if ((ridx / 8) & 1) /* MIMO */ 3061 idx += (int32_t)le32toh(uc->atten[grp][c]); 3062 3063 if (cmd.band == 0) 3064 idx += 9; /* 5GHz */ 3065 if (ridx == IWN_RIDX_MAX) 3066 idx += 5; /* CCK */ 3067 3068 /* make sure idx stays in a valid range */ 3069 if (idx < 0) 3070 idx = 0; 3071 else if (idx > IWN_MAX_PWR_INDEX) 3072 idx = IWN_MAX_PWR_INDEX; 3073 3074 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 3075 "%s: Tx chain %d, rate idx %d: power=%d\n", 3076 __func__, c, ridx, idx); 3077 cmd.power[ridx].rf_gain[c] = rf_gain[idx]; 3078 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx]; 3079 } 3080 } 3081 3082 DPRINTF(sc, IWN_DEBUG_CALIBRATE | IWN_DEBUG_TXPOW, 3083 "%s: set tx power for chan %d\n", __func__, chan); 3084 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async); 3085 3086 #undef interpolate 3087 #undef fdivround 3088 } 3089 3090 /* 3091 * Get the best (maximum) RSSI among the 3092 * connected antennas and convert to dBm. 3093 */ 3094 int8_t 3095 iwn_get_rssi(struct iwn_softc *sc, const struct iwn_rx_stat *stat) 3096 { 3097 int mask, agc, rssi; 3098 3099 mask = (le16toh(stat->antenna) >> 4) & 0x7; 3100 agc = (le16toh(stat->agc) >> 7) & 0x7f; 3101 3102 rssi = 0; 3103 #if 0 3104 if (mask & (1 << 0)) /* Ant A */ 3105 rssi = max(rssi, stat->rssi[0]); 3106 if (mask & (1 << 1)) /* Ant B */ 3107 rssi = max(rssi, stat->rssi[2]); 3108 if (mask & (1 << 2)) /* Ant C */ 3109 rssi = max(rssi, stat->rssi[4]); 3110 #else 3111 rssi = max(rssi, stat->rssi[0]); 3112 rssi = max(rssi, stat->rssi[2]); 3113 rssi = max(rssi, stat->rssi[4]); 3114 #endif 3115 DPRINTF(sc, IWN_DEBUG_RECV, "%s: agc %d mask 0x%x rssi %d %d %d " 3116 "result %d\n", __func__, agc, mask, 3117 stat->rssi[0], stat->rssi[2], stat->rssi[4], 3118 rssi - agc - IWN_RSSI_TO_DBM); 3119 return rssi - agc - IWN_RSSI_TO_DBM; 3120 } 3121 3122 /* 3123 * Get the average noise among Rx antennas (in dBm). 3124 */ 3125 int 3126 iwn_get_noise(const struct iwn_rx_general_stats *stats) 3127 { 3128 int i, total, nbant, noise; 3129 3130 total = nbant = 0; 3131 for (i = 0; i < 3; i++) { 3132 noise = le32toh(stats->noise[i]) & 0xff; 3133 if (noise != 0) { 3134 total += noise; 3135 nbant++; 3136 } 3137 } 3138 /* there should be at least one antenna but check anyway */ 3139 return (nbant == 0) ? -127 : (total / nbant) - 107; 3140 } 3141 3142 /* 3143 * Read temperature (in degC) from the on-board thermal sensor. 3144 */ 3145 int 3146 iwn_get_temperature(struct iwn_softc *sc) 3147 { 3148 struct iwn_ucode_info *uc = &sc->ucode_info; 3149 int32_t r1, r2, r3, r4, temp; 3150 3151 r1 = le32toh(uc->temp[0].chan20MHz); 3152 r2 = le32toh(uc->temp[1].chan20MHz); 3153 r3 = le32toh(uc->temp[2].chan20MHz); 3154 r4 = le32toh(sc->rawtemp); 3155 3156 if (r1 == r3) /* prevents division by 0 (should not happen) */ 3157 return 0; 3158 3159 /* sign-extend 23-bit R4 value to 32-bit */ 3160 r4 = (r4 << 8) >> 8; 3161 /* compute temperature */ 3162 temp = (259 * (r4 - r2)) / (r3 - r1); 3163 temp = (temp * 97) / 100 + 8; 3164 3165 return IWN_KTOC(temp); 3166 } 3167 3168 /* 3169 * Initialize sensitivity calibration state machine. 3170 */ 3171 int 3172 iwn_init_sensitivity(struct iwn_softc *sc) 3173 { 3174 struct iwn_calib_state *calib = &sc->calib; 3175 struct iwn_phy_calib_cmd cmd; 3176 int error; 3177 3178 /* reset calibration state */ 3179 memset(calib, 0, sizeof (*calib)); 3180 calib->state = IWN_CALIB_STATE_INIT; 3181 calib->cck_state = IWN_CCK_STATE_HIFA; 3182 /* initial values taken from the reference driver */ 3183 calib->corr_ofdm_x1 = 105; 3184 calib->corr_ofdm_mrc_x1 = 220; 3185 calib->corr_ofdm_x4 = 90; 3186 calib->corr_ofdm_mrc_x4 = 170; 3187 calib->corr_cck_x4 = 125; 3188 calib->corr_cck_mrc_x4 = 200; 3189 calib->energy_cck = 100; 3190 3191 /* write initial sensitivity values */ 3192 error = iwn_send_sensitivity(sc); 3193 if (error != 0) 3194 return error; 3195 3196 memset(&cmd, 0, sizeof cmd); 3197 cmd.code = IWN_SET_DIFF_GAIN; 3198 /* differential gains initially set to 0 for all 3 antennas */ 3199 DPRINTF(sc, IWN_DEBUG_CALIBRATE, "%s: calibrate phy\n", __func__); 3200 return iwn_cmd(sc, IWN_PHY_CALIB, &cmd, sizeof cmd, 1); 3201 } 3202 3203 /* 3204 * Collect noise and RSSI statistics for the first 20 beacons received 3205 * after association and use them to determine connected antennas and 3206 * set differential gains. 3207 */ 3208 void 3209 iwn_compute_differential_gain(struct iwn_softc *sc, 3210 const struct iwn_rx_general_stats *stats) 3211 { 3212 struct iwn_calib_state *calib = &sc->calib; 3213 struct iwn_phy_calib_cmd cmd; 3214 int i, val; 3215 3216 /* accumulate RSSI and noise for all 3 antennas */ 3217 for (i = 0; i < 3; i++) { 3218 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff; 3219 calib->noise[i] += le32toh(stats->noise[i]) & 0xff; 3220 } 3221 3222 /* we update differential gain only once after 20 beacons */ 3223 if (++calib->nbeacons < 20) 3224 return; 3225 3226 /* determine antenna with highest average RSSI */ 3227 val = max(calib->rssi[0], calib->rssi[1]); 3228 val = max(calib->rssi[2], val); 3229 3230 /* determine which antennas are connected */ 3231 sc->antmsk = 0; 3232 for (i = 0; i < 3; i++) 3233 if (val - calib->rssi[i] <= 15 * 20) 3234 sc->antmsk |= 1 << i; 3235 /* if neither Ant A and Ant B are connected.. */ 3236 if ((sc->antmsk & (1 << 0 | 1 << 1)) == 0) 3237 sc->antmsk |= 1 << 1; /* ..mark Ant B as connected! */ 3238 3239 /* get minimal noise among connected antennas */ 3240 val = INT_MAX; /* ok, there's at least one */ 3241 for (i = 0; i < 3; i++) 3242 if (sc->antmsk & (1 << i)) 3243 val = min(calib->noise[i], val); 3244 3245 memset(&cmd, 0, sizeof cmd); 3246 cmd.code = IWN_SET_DIFF_GAIN; 3247 /* set differential gains for connected antennas */ 3248 for (i = 0; i < 3; i++) { 3249 if (sc->antmsk & (1 << i)) { 3250 cmd.gain[i] = (calib->noise[i] - val) / 30; 3251 /* limit differential gain to 3 */ 3252 cmd.gain[i] = min(cmd.gain[i], 3); 3253 cmd.gain[i] |= IWN_GAIN_SET; 3254 } 3255 } 3256 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3257 "%s: set differential gains Ant A/B/C: %x/%x/%x (%x)\n", 3258 __func__,cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->antmsk); 3259 if (iwn_cmd(sc, IWN_PHY_CALIB, &cmd, sizeof cmd, 1) == 0) 3260 calib->state = IWN_CALIB_STATE_RUN; 3261 } 3262 3263 /* 3264 * Tune RF Rx sensitivity based on the number of false alarms detected 3265 * during the last beacon period. 3266 */ 3267 void 3268 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats) 3269 { 3270 #define inc_clip(val, inc, max) \ 3271 if ((val) < (max)) { \ 3272 if ((val) < (max) - (inc)) \ 3273 (val) += (inc); \ 3274 else \ 3275 (val) = (max); \ 3276 needs_update = 1; \ 3277 } 3278 #define dec_clip(val, dec, min) \ 3279 if ((val) > (min)) { \ 3280 if ((val) > (min) + (dec)) \ 3281 (val) -= (dec); \ 3282 else \ 3283 (val) = (min); \ 3284 needs_update = 1; \ 3285 } 3286 3287 struct iwn_calib_state *calib = &sc->calib; 3288 uint32_t val, rxena, fa; 3289 uint32_t energy[3], energy_min; 3290 uint8_t noise[3], noise_ref; 3291 int i, needs_update = 0; 3292 3293 /* check that we've been enabled long enough */ 3294 if ((rxena = le32toh(stats->general.load)) == 0) 3295 return; 3296 3297 /* compute number of false alarms since last call for OFDM */ 3298 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm; 3299 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm; 3300 fa *= 200 * 1024; /* 200TU */ 3301 3302 /* save counters values for next call */ 3303 calib->bad_plcp_ofdm = le32toh(stats->ofdm.bad_plcp); 3304 calib->fa_ofdm = le32toh(stats->ofdm.fa); 3305 3306 if (fa > 50 * rxena) { 3307 /* high false alarm count, decrease sensitivity */ 3308 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3309 "%s: OFDM high false alarm count: %u\n", __func__, fa); 3310 inc_clip(calib->corr_ofdm_x1, 1, 140); 3311 inc_clip(calib->corr_ofdm_mrc_x1, 1, 270); 3312 inc_clip(calib->corr_ofdm_x4, 1, 120); 3313 inc_clip(calib->corr_ofdm_mrc_x4, 1, 210); 3314 3315 } else if (fa < 5 * rxena) { 3316 /* low false alarm count, increase sensitivity */ 3317 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3318 "%s: OFDM low false alarm count: %u\n", __func__, fa); 3319 dec_clip(calib->corr_ofdm_x1, 1, 105); 3320 dec_clip(calib->corr_ofdm_mrc_x1, 1, 220); 3321 dec_clip(calib->corr_ofdm_x4, 1, 85); 3322 dec_clip(calib->corr_ofdm_mrc_x4, 1, 170); 3323 } 3324 3325 /* compute maximum noise among 3 antennas */ 3326 for (i = 0; i < 3; i++) 3327 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff; 3328 val = max(noise[0], noise[1]); 3329 val = max(noise[2], val); 3330 /* insert it into our samples table */ 3331 calib->noise_samples[calib->cur_noise_sample] = val; 3332 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20; 3333 3334 /* compute maximum noise among last 20 samples */ 3335 noise_ref = calib->noise_samples[0]; 3336 for (i = 1; i < 20; i++) 3337 noise_ref = max(noise_ref, calib->noise_samples[i]); 3338 3339 /* compute maximum energy among 3 antennas */ 3340 for (i = 0; i < 3; i++) 3341 energy[i] = le32toh(stats->general.energy[i]); 3342 val = min(energy[0], energy[1]); 3343 val = min(energy[2], val); 3344 /* insert it into our samples table */ 3345 calib->energy_samples[calib->cur_energy_sample] = val; 3346 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10; 3347 3348 /* compute minimum energy among last 10 samples */ 3349 energy_min = calib->energy_samples[0]; 3350 for (i = 1; i < 10; i++) 3351 energy_min = max(energy_min, calib->energy_samples[i]); 3352 energy_min += 6; 3353 3354 /* compute number of false alarms since last call for CCK */ 3355 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck; 3356 fa += le32toh(stats->cck.fa) - calib->fa_cck; 3357 fa *= 200 * 1024; /* 200TU */ 3358 3359 /* save counters values for next call */ 3360 calib->bad_plcp_cck = le32toh(stats->cck.bad_plcp); 3361 calib->fa_cck = le32toh(stats->cck.fa); 3362 3363 if (fa > 50 * rxena) { 3364 /* high false alarm count, decrease sensitivity */ 3365 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3366 "%s: CCK high false alarm count: %u\n", __func__, fa); 3367 calib->cck_state = IWN_CCK_STATE_HIFA; 3368 calib->low_fa = 0; 3369 3370 if (calib->corr_cck_x4 > 160) { 3371 calib->noise_ref = noise_ref; 3372 if (calib->energy_cck > 2) 3373 dec_clip(calib->energy_cck, 2, energy_min); 3374 } 3375 if (calib->corr_cck_x4 < 160) { 3376 calib->corr_cck_x4 = 161; 3377 needs_update = 1; 3378 } else 3379 inc_clip(calib->corr_cck_x4, 3, 200); 3380 3381 inc_clip(calib->corr_cck_mrc_x4, 3, 400); 3382 3383 } else if (fa < 5 * rxena) { 3384 /* low false alarm count, increase sensitivity */ 3385 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3386 "%s: CCK low false alarm count: %u\n", __func__, fa); 3387 calib->cck_state = IWN_CCK_STATE_LOFA; 3388 calib->low_fa++; 3389 3390 if (calib->cck_state != 0 && 3391 ((calib->noise_ref - noise_ref) > 2 || 3392 calib->low_fa > 100)) { 3393 inc_clip(calib->energy_cck, 2, 97); 3394 dec_clip(calib->corr_cck_x4, 3, 125); 3395 dec_clip(calib->corr_cck_mrc_x4, 3, 200); 3396 } 3397 } else { 3398 /* not worth to increase or decrease sensitivity */ 3399 DPRINTF(sc, IWN_DEBUG_CALIBRATE, 3400 "%s: CCK normal false alarm count: %u\n", __func__, fa); 3401 calib->low_fa = 0; 3402 calib->noise_ref = noise_ref; 3403 3404 if (calib->cck_state == IWN_CCK_STATE_HIFA) { 3405 /* previous interval had many false alarms */ 3406 dec_clip(calib->energy_cck, 8, energy_min); 3407 } 3408 calib->cck_state = IWN_CCK_STATE_INIT; 3409 } 3410 3411 if (needs_update) 3412 (void)iwn_send_sensitivity(sc); 3413 #undef dec_clip 3414 #undef inc_clip 3415 } 3416 3417 int 3418 iwn_send_sensitivity(struct iwn_softc *sc) 3419 { 3420 struct iwn_calib_state *calib = &sc->calib; 3421 struct iwn_sensitivity_cmd cmd; 3422 3423 memset(&cmd, 0, sizeof cmd); 3424 cmd.which = IWN_SENSITIVITY_WORKTBL; 3425 /* OFDM modulation */ 3426 cmd.corr_ofdm_x1 = htole16(calib->corr_ofdm_x1); 3427 cmd.corr_ofdm_mrc_x1 = htole16(calib->corr_ofdm_mrc_x1); 3428 cmd.corr_ofdm_x4 = htole16(calib->corr_ofdm_x4); 3429 cmd.corr_ofdm_mrc_x4 = htole16(calib->corr_ofdm_mrc_x4); 3430 cmd.energy_ofdm = htole16(100); 3431 cmd.energy_ofdm_th = htole16(62); 3432 /* CCK modulation */ 3433 cmd.corr_cck_x4 = htole16(calib->corr_cck_x4); 3434 cmd.corr_cck_mrc_x4 = htole16(calib->corr_cck_mrc_x4); 3435 cmd.energy_cck = htole16(calib->energy_cck); 3436 /* Barker modulation: use default values */ 3437 cmd.corr_barker = htole16(190); 3438 cmd.corr_barker_mrc = htole16(390); 3439 3440 DPRINTF(sc, IWN_DEBUG_RESET, 3441 "%s: set sensitivity %d/%d/%d/%d/%d/%d/%d\n", __func__, 3442 calib->corr_ofdm_x1, calib->corr_ofdm_mrc_x1, calib->corr_ofdm_x4, 3443 calib->corr_ofdm_mrc_x4, calib->corr_cck_x4, 3444 calib->corr_cck_mrc_x4, calib->energy_cck); 3445 return iwn_cmd(sc, IWN_SENSITIVITY, &cmd, sizeof cmd, 1); 3446 } 3447 3448 int 3449 iwn_auth(struct iwn_softc *sc, struct ieee80211vap *vap) 3450 { 3451 struct ifnet *ifp = sc->sc_ifp; 3452 struct ieee80211com *ic = ifp->if_l2com; 3453 struct ieee80211_node *ni = vap->iv_bss; 3454 struct iwn_node_info node; 3455 int error; 3456 3457 sc->calib.state = IWN_CALIB_STATE_INIT; 3458 3459 /* update adapter's configuration */ 3460 sc->config.associd = 0; 3461 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid); 3462 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ni->ni_chan)); 3463 sc->config.flags = htole32(IWN_CONFIG_TSF); 3464 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 3465 sc->config.flags |= htole32(IWN_CONFIG_AUTO | IWN_CONFIG_24GHZ); 3466 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) { 3467 sc->config.cck_mask = 0; 3468 sc->config.ofdm_mask = 0x15; 3469 } else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) { 3470 sc->config.cck_mask = 0x03; 3471 sc->config.ofdm_mask = 0; 3472 } else { 3473 /* XXX assume 802.11b/g */ 3474 sc->config.cck_mask = 0x0f; 3475 sc->config.ofdm_mask = 0x15; 3476 } 3477 if (ic->ic_flags & IEEE80211_F_SHSLOT) 3478 sc->config.flags |= htole32(IWN_CONFIG_SHSLOT); 3479 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 3480 sc->config.flags |= htole32(IWN_CONFIG_SHPREAMBLE); 3481 sc->config.filter &= ~htole32(IWN_FILTER_BSS); 3482 3483 DPRINTF(sc, IWN_DEBUG_STATE, 3484 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x " 3485 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x " 3486 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n", 3487 __func__, 3488 le16toh(sc->config.chan), sc->config.mode, le32toh(sc->config.flags), 3489 sc->config.cck_mask, sc->config.ofdm_mask, 3490 sc->config.ht_single_mask, sc->config.ht_dual_mask, 3491 le16toh(sc->config.rxchain), 3492 sc->config.myaddr, ":", sc->config.wlap, ":", sc->config.bssid, ":", 3493 le16toh(sc->config.associd), le32toh(sc->config.filter)); 3494 error = iwn_cmd(sc, IWN_CMD_CONFIGURE, &sc->config, 3495 sizeof (struct iwn_config), 1); 3496 if (error != 0) { 3497 device_printf(sc->sc_dev, 3498 "%s: could not configure, error %d\n", __func__, error); 3499 return error; 3500 } 3501 sc->sc_curchan = ic->ic_curchan; 3502 3503 /* configuration has changed, set Tx power accordingly */ 3504 error = iwn_set_txpower(sc, ni->ni_chan, 1); 3505 if (error != 0) { 3506 device_printf(sc->sc_dev, 3507 "%s: could not set Tx power, error %d\n", __func__, error); 3508 return error; 3509 } 3510 3511 /* 3512 * Reconfiguring clears the adapter's nodes table so we must 3513 * add the broadcast node again. 3514 */ 3515 memset(&node, 0, sizeof node); 3516 IEEE80211_ADDR_COPY(node.macaddr, ifp->if_broadcastaddr); 3517 node.id = IWN_ID_BROADCAST; 3518 DPRINTF(sc, IWN_DEBUG_STATE, "%s: add broadcast node\n", __func__); 3519 error = iwn_cmd(sc, IWN_CMD_ADD_NODE, &node, sizeof node, 1); 3520 if (error != 0) { 3521 device_printf(sc->sc_dev, 3522 "%s: could not add broadcast node, error %d\n", 3523 __func__, error); 3524 return error; 3525 } 3526 error = iwn_set_link_quality(sc, node.id, ic->ic_curchan, 1); 3527 if (error != 0) { 3528 device_printf(sc->sc_dev, 3529 "%s: could not setup MRR for broadcast node, error %d\n", 3530 __func__, error); 3531 return error; 3532 } 3533 3534 return 0; 3535 } 3536 3537 /* 3538 * Configure the adapter for associated state. 3539 */ 3540 int 3541 iwn_run(struct iwn_softc *sc, struct ieee80211vap *vap) 3542 { 3543 #define MS(v,x) (((v) & x) >> x##_S) 3544 struct ifnet *ifp = sc->sc_ifp; 3545 struct ieee80211com *ic = ifp->if_l2com; 3546 struct ieee80211_node *ni = vap->iv_bss; 3547 struct iwn_node_info node; 3548 int error, maxrxampdu, ampdudensity; 3549 3550 sc->calib.state = IWN_CALIB_STATE_INIT; 3551 3552 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 3553 /* link LED blinks while monitoring */ 3554 iwn_set_led(sc, IWN_LED_LINK, 5, 5); 3555 return 0; 3556 } 3557 3558 iwn_enable_tsf(sc, ni); 3559 3560 /* update adapter's configuration */ 3561 sc->config.associd = htole16(IEEE80211_AID(ni->ni_associd)); 3562 /* short preamble/slot time are negotiated when associating */ 3563 sc->config.flags &= ~htole32(IWN_CONFIG_SHPREAMBLE | IWN_CONFIG_SHSLOT); 3564 if (ic->ic_flags & IEEE80211_F_SHSLOT) 3565 sc->config.flags |= htole32(IWN_CONFIG_SHSLOT); 3566 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 3567 sc->config.flags |= htole32(IWN_CONFIG_SHPREAMBLE); 3568 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 3569 sc->config.flags &= ~htole32(IWN_CONFIG_HT); 3570 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 3571 sc->config.flags |= htole32(IWN_CONFIG_HT40U); 3572 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 3573 sc->config.flags |= htole32(IWN_CONFIG_HT40D); 3574 else 3575 sc->config.flags |= htole32(IWN_CONFIG_HT20); 3576 sc->config.rxchain = htole16( 3577 (3 << IWN_RXCHAIN_VALID_S) 3578 | (3 << IWN_RXCHAIN_MIMO_CNT_S) 3579 | (1 << IWN_RXCHAIN_CNT_S) 3580 | IWN_RXCHAIN_MIMO_FORCE); 3581 3582 maxrxampdu = MS(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 3583 ampdudensity = MS(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 3584 } else 3585 maxrxampdu = ampdudensity = 0; 3586 sc->config.filter |= htole32(IWN_FILTER_BSS); 3587 3588 DPRINTF(sc, IWN_DEBUG_STATE, 3589 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x " 3590 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x " 3591 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n", 3592 __func__, 3593 le16toh(sc->config.chan), sc->config.mode, le32toh(sc->config.flags), 3594 sc->config.cck_mask, sc->config.ofdm_mask, 3595 sc->config.ht_single_mask, sc->config.ht_dual_mask, 3596 le16toh(sc->config.rxchain), 3597 sc->config.myaddr, ":", sc->config.wlap, ":", sc->config.bssid, ":", 3598 le16toh(sc->config.associd), le32toh(sc->config.filter)); 3599 error = iwn_cmd(sc, IWN_CMD_CONFIGURE, &sc->config, 3600 sizeof (struct iwn_config), 1); 3601 if (error != 0) { 3602 device_printf(sc->sc_dev, 3603 "%s: could not update configuration, error %d\n", 3604 __func__, error); 3605 return error; 3606 } 3607 sc->sc_curchan = ni->ni_chan; 3608 3609 /* configuration has changed, set Tx power accordingly */ 3610 error = iwn_set_txpower(sc, ni->ni_chan, 1); 3611 if (error != 0) { 3612 device_printf(sc->sc_dev, 3613 "%s: could not set Tx power, error %d\n", __func__, error); 3614 return error; 3615 } 3616 3617 /* add BSS node */ 3618 memset(&node, 0, sizeof node); 3619 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 3620 node.id = IWN_ID_BSS; 3621 node.htflags = htole32( 3622 (maxrxampdu << IWN_MAXRXAMPDU_S) | 3623 (ampdudensity << IWN_MPDUDENSITY_S)); 3624 DPRINTF(sc, IWN_DEBUG_STATE, "%s: add BSS node, id %d htflags 0x%x\n", 3625 __func__, node.id, le32toh(node.htflags)); 3626 error = iwn_cmd(sc, IWN_CMD_ADD_NODE, &node, sizeof node, 1); 3627 if (error != 0) { 3628 device_printf(sc->sc_dev,"could not add BSS node\n"); 3629 return error; 3630 } 3631 error = iwn_set_link_quality(sc, node.id, ni->ni_chan, 1); 3632 if (error != 0) { 3633 device_printf(sc->sc_dev, 3634 "%s: could not setup MRR for node %d, error %d\n", 3635 __func__, node.id, error); 3636 return error; 3637 } 3638 3639 error = iwn_init_sensitivity(sc); 3640 if (error != 0) { 3641 device_printf(sc->sc_dev, 3642 "%s: could not set sensitivity, error %d\n", 3643 __func__, error); 3644 return error; 3645 } 3646 3647 /* start/restart periodic calibration timer */ 3648 sc->calib.state = IWN_CALIB_STATE_ASSOC; 3649 iwn_calib_reset(sc); 3650 3651 /* link LED always on while associated */ 3652 iwn_set_led(sc, IWN_LED_LINK, 0, 1); 3653 3654 return 0; 3655 #undef MS 3656 } 3657 3658 /* 3659 * Send a scan request to the firmware. Since this command is huge, we map it 3660 * into a mbuf instead of using the pre-allocated set of commands. 3661 */ 3662 int 3663 iwn_scan(struct iwn_softc *sc) 3664 { 3665 struct ifnet *ifp = sc->sc_ifp; 3666 struct ieee80211com *ic = ifp->if_l2com; 3667 struct ieee80211_scan_state *ss = ic->ic_scan; /*XXX*/ 3668 struct iwn_tx_ring *ring = &sc->txq[4]; 3669 struct iwn_tx_desc *desc; 3670 struct iwn_tx_data *data; 3671 struct iwn_tx_cmd *cmd; 3672 struct iwn_cmd_data *tx; 3673 struct iwn_scan_hdr *hdr; 3674 struct iwn_scan_essid *essid; 3675 struct iwn_scan_chan *chan; 3676 struct ieee80211_frame *wh; 3677 struct ieee80211_rateset *rs; 3678 struct ieee80211_channel *c; 3679 enum ieee80211_phymode mode; 3680 uint8_t *frm; 3681 int pktlen, error, nrates; 3682 bus_addr_t physaddr; 3683 3684 desc = &ring->desc[ring->cur]; 3685 data = &ring->data[ring->cur]; 3686 3687 /* XXX malloc */ 3688 data->m = m_getcl(M_DONTWAIT, MT_DATA, 0); 3689 if (data->m == NULL) { 3690 device_printf(sc->sc_dev, 3691 "%s: could not allocate mbuf for scan command\n", __func__); 3692 return ENOMEM; 3693 } 3694 3695 cmd = mtod(data->m, struct iwn_tx_cmd *); 3696 cmd->code = IWN_CMD_SCAN; 3697 cmd->flags = 0; 3698 cmd->qid = ring->qid; 3699 cmd->idx = ring->cur; 3700 3701 hdr = (struct iwn_scan_hdr *)cmd->data; 3702 memset(hdr, 0, sizeof (struct iwn_scan_hdr)); 3703 3704 /* XXX use scan state */ 3705 /* 3706 * Move to the next channel if no packets are received within 5 msecs 3707 * after sending the probe request (this helps to reduce the duration 3708 * of active scans). 3709 */ 3710 hdr->quiet = htole16(5); /* timeout in milliseconds */ 3711 hdr->plcp_threshold = htole16(1); /* min # of packets */ 3712 3713 /* select Ant B and Ant C for scanning */ 3714 hdr->rxchain = htole16(0x3e1 | (7 << IWN_RXCHAIN_VALID_S)); 3715 3716 tx = (struct iwn_cmd_data *)(hdr + 1); 3717 memset(tx, 0, sizeof (struct iwn_cmd_data)); 3718 tx->flags = htole32(IWN_TX_AUTO_SEQ | 0x200); /* XXX */ 3719 tx->id = IWN_ID_BROADCAST; 3720 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 3721 tx->rflags = IWN_RFLAG_ANT_B; 3722 3723 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) { 3724 hdr->crc_threshold = htole16(1); 3725 /* send probe requests at 6Mbps */ 3726 tx->rate = iwn_ridx_to_plcp[IWN_RATE_OFDM6]; 3727 } else { 3728 hdr->flags = htole32(IWN_CONFIG_24GHZ | IWN_CONFIG_AUTO); 3729 /* send probe requests at 1Mbps */ 3730 tx->rate = iwn_ridx_to_plcp[IWN_RATE_CCK1]; 3731 tx->rflags |= IWN_RFLAG_CCK; 3732 } 3733 3734 essid = (struct iwn_scan_essid *)(tx + 1); 3735 memset(essid, 0, 4 * sizeof (struct iwn_scan_essid)); 3736 essid[0].id = IEEE80211_ELEMID_SSID; 3737 essid[0].len = ss->ss_ssid[0].len; 3738 memcpy(essid[0].data, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len); 3739 3740 /* 3741 * Build a probe request frame. Most of the following code is a 3742 * copy & paste of what is done in net80211. 3743 */ 3744 wh = (struct ieee80211_frame *)&essid[4]; 3745 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 3746 IEEE80211_FC0_SUBTYPE_PROBE_REQ; 3747 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 3748 IEEE80211_ADDR_COPY(wh->i_addr1, ifp->if_broadcastaddr); 3749 IEEE80211_ADDR_COPY(wh->i_addr2, IF_LLADDR(ifp)); 3750 IEEE80211_ADDR_COPY(wh->i_addr3, ifp->if_broadcastaddr); 3751 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */ 3752 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */ 3753 3754 frm = (uint8_t *)(wh + 1); 3755 3756 /* add SSID IE */ 3757 *frm++ = IEEE80211_ELEMID_SSID; 3758 *frm++ = ss->ss_ssid[0].len; 3759 memcpy(frm, ss->ss_ssid[0].ssid, ss->ss_ssid[0].len); 3760 frm += ss->ss_ssid[0].len; 3761 3762 mode = ieee80211_chan2mode(ic->ic_curchan); 3763 rs = &ic->ic_sup_rates[mode]; 3764 3765 /* add supported rates IE */ 3766 *frm++ = IEEE80211_ELEMID_RATES; 3767 nrates = rs->rs_nrates; 3768 if (nrates > IEEE80211_RATE_SIZE) 3769 nrates = IEEE80211_RATE_SIZE; 3770 *frm++ = nrates; 3771 memcpy(frm, rs->rs_rates, nrates); 3772 frm += nrates; 3773 3774 /* add supported xrates IE */ 3775 if (rs->rs_nrates > IEEE80211_RATE_SIZE) { 3776 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE; 3777 *frm++ = IEEE80211_ELEMID_XRATES; 3778 *frm++ = (uint8_t)nrates; 3779 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates); 3780 frm += nrates; 3781 } 3782 3783 /* setup length of probe request */ 3784 tx->len = htole16(frm - (uint8_t *)wh); 3785 3786 c = ic->ic_curchan; 3787 chan = (struct iwn_scan_chan *)frm; 3788 chan->chan = ieee80211_chan2ieee(ic, c); 3789 chan->flags = 0; 3790 if ((c->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) { 3791 chan->flags |= IWN_CHAN_ACTIVE; 3792 if (ss->ss_nssid > 0) 3793 chan->flags |= IWN_CHAN_DIRECT; 3794 } 3795 chan->dsp_gain = 0x6e; 3796 if (IEEE80211_IS_CHAN_5GHZ(c)) { 3797 chan->rf_gain = 0x3b; 3798 chan->active = htole16(10); 3799 chan->passive = htole16(110); 3800 } else { 3801 chan->rf_gain = 0x28; 3802 chan->active = htole16(20); 3803 chan->passive = htole16(120); 3804 } 3805 3806 DPRINTF(sc, IWN_DEBUG_STATE, "%s: chan %u flags 0x%x rf_gain 0x%x " 3807 "dsp_gain 0x%x active 0x%x passive 0x%x\n", __func__, 3808 chan->chan, chan->flags, chan->rf_gain, chan->dsp_gain, 3809 chan->active, chan->passive); 3810 hdr->nchan++; 3811 chan++; 3812 3813 frm += sizeof (struct iwn_scan_chan); 3814 3815 hdr->len = htole16(frm - (uint8_t *)hdr); 3816 pktlen = frm - (uint8_t *)cmd; 3817 3818 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, pktlen, 3819 iwn_dma_map_addr, &physaddr, BUS_DMA_NOWAIT); 3820 if (error != 0) { 3821 device_printf(sc->sc_dev, 3822 "%s: could not map scan command, error %d\n", 3823 __func__, error); 3824 m_freem(data->m); 3825 data->m = NULL; 3826 return error; 3827 } 3828 3829 IWN_SET_DESC_NSEGS(desc, 1); 3830 IWN_SET_DESC_SEG(desc, 0, physaddr, pktlen); 3831 sc->shared->len[ring->qid][ring->cur] = htole16(8); 3832 if (ring->cur < IWN_TX_WINDOW) 3833 sc->shared->len[ring->qid][ring->cur + IWN_TX_RING_COUNT] = 3834 htole16(8); 3835 3836 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3837 BUS_DMASYNC_PREWRITE); 3838 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 3839 3840 /* kick cmd ring */ 3841 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3842 IWN_WRITE(sc, IWN_TX_WIDX, ring->qid << 8 | ring->cur); 3843 3844 return 0; /* will be notified async. of failure/success */ 3845 } 3846 3847 int 3848 iwn_config(struct iwn_softc *sc) 3849 { 3850 struct ifnet *ifp = sc->sc_ifp; 3851 struct ieee80211com *ic = ifp->if_l2com; 3852 struct iwn_power power; 3853 struct iwn_bluetooth bluetooth; 3854 struct iwn_node_info node; 3855 int error; 3856 3857 /* set power mode */ 3858 memset(&power, 0, sizeof power); 3859 power.flags = htole16(IWN_POWER_CAM | 0x8); 3860 DPRINTF(sc, IWN_DEBUG_RESET, "%s: set power mode\n", __func__); 3861 error = iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &power, sizeof power, 0); 3862 if (error != 0) { 3863 device_printf(sc->sc_dev, 3864 "%s: could not set power mode, error %d\n", 3865 __func__, error); 3866 return error; 3867 } 3868 3869 /* configure bluetooth coexistence */ 3870 memset(&bluetooth, 0, sizeof bluetooth); 3871 bluetooth.flags = 3; 3872 bluetooth.lead = 0xaa; 3873 bluetooth.kill = 1; 3874 DPRINTF(sc, IWN_DEBUG_RESET, "%s: config bluetooth coexistence\n", 3875 __func__); 3876 error = iwn_cmd(sc, IWN_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth, 3877 0); 3878 if (error != 0) { 3879 device_printf(sc->sc_dev, 3880 "%s: could not configure bluetooth coexistence, error %d\n", 3881 __func__, error); 3882 return error; 3883 } 3884 3885 /* configure adapter */ 3886 memset(&sc->config, 0, sizeof (struct iwn_config)); 3887 IEEE80211_ADDR_COPY(sc->config.myaddr, IF_LLADDR(ifp)); 3888 IEEE80211_ADDR_COPY(sc->config.wlap, IF_LLADDR(ifp)); 3889 /* set default channel */ 3890 sc->config.chan = htole16(ieee80211_chan2ieee(ic, ic->ic_curchan)); 3891 sc->config.flags = htole32(IWN_CONFIG_TSF); 3892 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 3893 sc->config.flags |= htole32(IWN_CONFIG_AUTO | IWN_CONFIG_24GHZ); 3894 sc->config.filter = 0; 3895 switch (ic->ic_opmode) { 3896 case IEEE80211_M_STA: 3897 sc->config.mode = IWN_MODE_STA; 3898 sc->config.filter |= htole32(IWN_FILTER_MULTICAST); 3899 break; 3900 case IEEE80211_M_IBSS: 3901 case IEEE80211_M_AHDEMO: 3902 sc->config.mode = IWN_MODE_IBSS; 3903 break; 3904 case IEEE80211_M_HOSTAP: 3905 sc->config.mode = IWN_MODE_HOSTAP; 3906 break; 3907 case IEEE80211_M_MONITOR: 3908 sc->config.mode = IWN_MODE_MONITOR; 3909 sc->config.filter |= htole32(IWN_FILTER_MULTICAST | 3910 IWN_FILTER_CTL | IWN_FILTER_PROMISC); 3911 break; 3912 default: 3913 break; 3914 } 3915 sc->config.cck_mask = 0x0f; /* not yet negotiated */ 3916 sc->config.ofdm_mask = 0xff; /* not yet negotiated */ 3917 sc->config.ht_single_mask = 0xff; 3918 sc->config.ht_dual_mask = 0xff; 3919 sc->config.rxchain = htole16(0x2800 | (7 << IWN_RXCHAIN_VALID_S)); 3920 3921 DPRINTF(sc, IWN_DEBUG_STATE, 3922 "%s: config chan %d mode %d flags 0x%x cck 0x%x ofdm 0x%x " 3923 "ht_single 0x%x ht_dual 0x%x rxchain 0x%x " 3924 "myaddr %6D wlap %6D bssid %6D associd %d filter 0x%x\n", 3925 __func__, 3926 le16toh(sc->config.chan), sc->config.mode, le32toh(sc->config.flags), 3927 sc->config.cck_mask, sc->config.ofdm_mask, 3928 sc->config.ht_single_mask, sc->config.ht_dual_mask, 3929 le16toh(sc->config.rxchain), 3930 sc->config.myaddr, ":", sc->config.wlap, ":", sc->config.bssid, ":", 3931 le16toh(sc->config.associd), le32toh(sc->config.filter)); 3932 error = iwn_cmd(sc, IWN_CMD_CONFIGURE, &sc->config, 3933 sizeof (struct iwn_config), 0); 3934 if (error != 0) { 3935 device_printf(sc->sc_dev, 3936 "%s: configure command failed, error %d\n", 3937 __func__, error); 3938 return error; 3939 } 3940 sc->sc_curchan = ic->ic_curchan; 3941 3942 /* configuration has changed, set Tx power accordingly */ 3943 error = iwn_set_txpower(sc, ic->ic_curchan, 0); 3944 if (error != 0) { 3945 device_printf(sc->sc_dev, 3946 "%s: could not set Tx power, error %d\n", __func__, error); 3947 return error; 3948 } 3949 3950 /* add broadcast node */ 3951 memset(&node, 0, sizeof node); 3952 IEEE80211_ADDR_COPY(node.macaddr, ic->ic_ifp->if_broadcastaddr); 3953 node.id = IWN_ID_BROADCAST; 3954 node.rate = iwn_plcp_signal(2); 3955 DPRINTF(sc, IWN_DEBUG_RESET, "%s: add broadcast node\n", __func__); 3956 error = iwn_cmd(sc, IWN_CMD_ADD_NODE, &node, sizeof node, 0); 3957 if (error != 0) { 3958 device_printf(sc->sc_dev, 3959 "%s: could not add broadcast node, error %d\n", 3960 __func__, error); 3961 return error; 3962 } 3963 error = iwn_set_link_quality(sc, node.id, ic->ic_curchan, 0); 3964 if (error != 0) { 3965 device_printf(sc->sc_dev, 3966 "%s: could not setup MRR for node %d, error %d\n", 3967 __func__, node.id, error); 3968 return error; 3969 } 3970 3971 error = iwn_set_critical_temp(sc); 3972 if (error != 0) { 3973 device_printf(sc->sc_dev, 3974 "%s: could not set critical temperature, error %d\n", 3975 __func__, error); 3976 return error; 3977 } 3978 return 0; 3979 } 3980 3981 /* 3982 * Do post-alive initialization of the NIC (after firmware upload). 3983 */ 3984 void 3985 iwn_post_alive(struct iwn_softc *sc) 3986 { 3987 uint32_t base; 3988 uint16_t offset; 3989 int qid; 3990 3991 iwn_mem_lock(sc); 3992 3993 /* clear SRAM */ 3994 base = iwn_mem_read(sc, IWN_SRAM_BASE); 3995 for (offset = 0x380; offset < 0x520; offset += 4) { 3996 IWN_WRITE(sc, IWN_MEM_WADDR, base + offset); 3997 IWN_WRITE(sc, IWN_MEM_WDATA, 0); 3998 } 3999 4000 /* shared area is aligned on a 1K boundary */ 4001 iwn_mem_write(sc, IWN_SRAM_BASE, sc->shared_dma.paddr >> 10); 4002 iwn_mem_write(sc, IWN_SELECT_QCHAIN, 0); 4003 4004 for (qid = 0; qid < IWN_NTXQUEUES; qid++) { 4005 iwn_mem_write(sc, IWN_QUEUE_RIDX(qid), 0); 4006 IWN_WRITE(sc, IWN_TX_WIDX, qid << 8 | 0); 4007 4008 /* set sched. window size */ 4009 IWN_WRITE(sc, IWN_MEM_WADDR, base + IWN_QUEUE_OFFSET(qid)); 4010 IWN_WRITE(sc, IWN_MEM_WDATA, 64); 4011 /* set sched. frame limit */ 4012 IWN_WRITE(sc, IWN_MEM_WADDR, base + IWN_QUEUE_OFFSET(qid) + 4); 4013 IWN_WRITE(sc, IWN_MEM_WDATA, 10 << 16); 4014 } 4015 4016 /* enable interrupts for all 16 queues */ 4017 iwn_mem_write(sc, IWN_QUEUE_INTR_MASK, 0xffff); 4018 4019 /* identify active Tx rings (0-7) */ 4020 iwn_mem_write(sc, IWN_TX_ACTIVE, 0xff); 4021 4022 /* mark Tx rings (4 EDCA + cmd + 2 HCCA) as active */ 4023 for (qid = 0; qid < 7; qid++) { 4024 iwn_mem_write(sc, IWN_TXQ_STATUS(qid), 4025 IWN_TXQ_STATUS_ACTIVE | qid << 1); 4026 } 4027 4028 iwn_mem_unlock(sc); 4029 } 4030 4031 void 4032 iwn_stop_master(struct iwn_softc *sc) 4033 { 4034 uint32_t tmp; 4035 int ntries; 4036 4037 tmp = IWN_READ(sc, IWN_RESET); 4038 IWN_WRITE(sc, IWN_RESET, tmp | IWN_STOP_MASTER); 4039 4040 tmp = IWN_READ(sc, IWN_GPIO_CTL); 4041 if ((tmp & IWN_GPIO_PWR_STATUS) == IWN_GPIO_PWR_SLEEP) 4042 return; /* already asleep */ 4043 4044 for (ntries = 0; ntries < 100; ntries++) { 4045 if (IWN_READ(sc, IWN_RESET) & IWN_MASTER_DISABLED) 4046 break; 4047 DELAY(10); 4048 } 4049 if (ntries == 100) 4050 device_printf(sc->sc_dev, 4051 "%s: timeout waiting for master\n", __func__); 4052 } 4053 4054 int 4055 iwn_reset(struct iwn_softc *sc) 4056 { 4057 uint32_t tmp; 4058 int ntries; 4059 4060 /* clear any pending interrupts */ 4061 IWN_WRITE(sc, IWN_INTR, 0xffffffff); 4062 4063 tmp = IWN_READ(sc, IWN_CHICKEN); 4064 IWN_WRITE(sc, IWN_CHICKEN, tmp | IWN_CHICKEN_DISLOS); 4065 4066 tmp = IWN_READ(sc, IWN_GPIO_CTL); 4067 IWN_WRITE(sc, IWN_GPIO_CTL, tmp | IWN_GPIO_INIT); 4068 4069 /* wait for clock stabilization */ 4070 for (ntries = 0; ntries < 1000; ntries++) { 4071 if (IWN_READ(sc, IWN_GPIO_CTL) & IWN_GPIO_CLOCK) 4072 break; 4073 DELAY(10); 4074 } 4075 if (ntries == 1000) { 4076 device_printf(sc->sc_dev, 4077 "%s: timeout waiting for clock stabilization\n", __func__); 4078 return ETIMEDOUT; 4079 } 4080 return 0; 4081 } 4082 4083 void 4084 iwn_hw_config(struct iwn_softc *sc) 4085 { 4086 uint32_t tmp, hw; 4087 4088 /* enable interrupts mitigation */ 4089 IWN_WRITE(sc, IWN_INTR_MIT, 512 / 32); 4090 4091 /* voodoo from the reference driver */ 4092 tmp = pci_read_config(sc->sc_dev, PCIR_REVID,1); 4093 if ((tmp & 0x80) && (tmp & 0x7f) < 8) { 4094 /* enable "no snoop" field */ 4095 tmp = pci_read_config(sc->sc_dev, 0xe8, 1); 4096 tmp &= ~IWN_DIS_NOSNOOP; 4097 /* clear device specific PCI configuration register 0x41 */ 4098 pci_write_config(sc->sc_dev, 0xe8, tmp, 1); 4099 } 4100 4101 /* disable L1 entry to work around a hardware bug */ 4102 tmp = pci_read_config(sc->sc_dev, 0xf0, 1); 4103 tmp &= ~IWN_ENA_L1; 4104 pci_write_config(sc->sc_dev, 0xf0, tmp, 1 ); 4105 4106 hw = IWN_READ(sc, IWN_HWCONFIG); 4107 IWN_WRITE(sc, IWN_HWCONFIG, hw | 0x310); 4108 4109 iwn_mem_lock(sc); 4110 tmp = iwn_mem_read(sc, IWN_MEM_POWER); 4111 iwn_mem_write(sc, IWN_MEM_POWER, tmp | IWN_POWER_RESET); 4112 DELAY(5); 4113 tmp = iwn_mem_read(sc, IWN_MEM_POWER); 4114 iwn_mem_write(sc, IWN_MEM_POWER, tmp & ~IWN_POWER_RESET); 4115 iwn_mem_unlock(sc); 4116 } 4117 4118 void 4119 iwn_init_locked(struct iwn_softc *sc) 4120 { 4121 struct ifnet *ifp = sc->sc_ifp; 4122 uint32_t tmp; 4123 int error, qid; 4124 4125 IWN_LOCK_ASSERT(sc); 4126 4127 /* load the firmware */ 4128 if (sc->fw_fp == NULL && (error = iwn_load_firmware(sc)) != 0) { 4129 device_printf(sc->sc_dev, 4130 "%s: could not load firmware, error %d\n", __func__, error); 4131 return; 4132 } 4133 4134 error = iwn_reset(sc); 4135 if (error != 0) { 4136 device_printf(sc->sc_dev, 4137 "%s: could not reset adapter, error %d\n", __func__, error); 4138 return; 4139 } 4140 4141 iwn_mem_lock(sc); 4142 iwn_mem_read(sc, IWN_CLOCK_CTL); 4143 iwn_mem_write(sc, IWN_CLOCK_CTL, 0xa00); 4144 iwn_mem_read(sc, IWN_CLOCK_CTL); 4145 iwn_mem_unlock(sc); 4146 4147 DELAY(20); 4148 4149 iwn_mem_lock(sc); 4150 tmp = iwn_mem_read(sc, IWN_MEM_PCIDEV); 4151 iwn_mem_write(sc, IWN_MEM_PCIDEV, tmp | 0x800); 4152 iwn_mem_unlock(sc); 4153 4154 iwn_mem_lock(sc); 4155 tmp = iwn_mem_read(sc, IWN_MEM_POWER); 4156 iwn_mem_write(sc, IWN_MEM_POWER, tmp & ~0x03000000); 4157 iwn_mem_unlock(sc); 4158 4159 iwn_hw_config(sc); 4160 4161 /* init Rx ring */ 4162 iwn_mem_lock(sc); 4163 IWN_WRITE(sc, IWN_RX_CONFIG, 0); 4164 IWN_WRITE(sc, IWN_RX_WIDX, 0); 4165 /* Rx ring is aligned on a 256-byte boundary */ 4166 IWN_WRITE(sc, IWN_RX_BASE, sc->rxq.desc_dma.paddr >> 8); 4167 /* shared area is aligned on a 16-byte boundary */ 4168 IWN_WRITE(sc, IWN_RW_WIDX_PTR, (sc->shared_dma.paddr + 4169 offsetof(struct iwn_shared, closed_count)) >> 4); 4170 IWN_WRITE(sc, IWN_RX_CONFIG, 0x80601000); 4171 iwn_mem_unlock(sc); 4172 4173 IWN_WRITE(sc, IWN_RX_WIDX, (IWN_RX_RING_COUNT - 1) & ~7); 4174 4175 iwn_mem_lock(sc); 4176 iwn_mem_write(sc, IWN_TX_ACTIVE, 0); 4177 4178 /* set physical address of "keep warm" page */ 4179 IWN_WRITE(sc, IWN_KW_BASE, sc->kw_dma.paddr >> 4); 4180 4181 /* init Tx rings */ 4182 for (qid = 0; qid < IWN_NTXQUEUES; qid++) { 4183 struct iwn_tx_ring *txq = &sc->txq[qid]; 4184 IWN_WRITE(sc, IWN_TX_BASE(qid), txq->desc_dma.paddr >> 8); 4185 IWN_WRITE(sc, IWN_TX_CONFIG(qid), 0x80000008); 4186 } 4187 iwn_mem_unlock(sc); 4188 4189 /* clear "radio off" and "disable command" bits (reversed logic) */ 4190 IWN_WRITE(sc, IWN_UCODE_CLR, IWN_RADIO_OFF); 4191 IWN_WRITE(sc, IWN_UCODE_CLR, IWN_DISABLE_CMD); 4192 4193 /* clear any pending interrupts */ 4194 IWN_WRITE(sc, IWN_INTR, 0xffffffff); 4195 /* enable interrupts */ 4196 IWN_WRITE(sc, IWN_MASK, IWN_INTR_MASK); 4197 4198 /* not sure why/if this is necessary... */ 4199 IWN_WRITE(sc, IWN_UCODE_CLR, IWN_RADIO_OFF); 4200 IWN_WRITE(sc, IWN_UCODE_CLR, IWN_RADIO_OFF); 4201 4202 /* check that the radio is not disabled by RF switch */ 4203 if (!(IWN_READ(sc, IWN_GPIO_CTL) & IWN_GPIO_RF_ENABLED)) { 4204 device_printf(sc->sc_dev, 4205 "radio is disabled by hardware switch\n"); 4206 return; 4207 } 4208 4209 error = iwn_transfer_firmware(sc); 4210 if (error != 0) { 4211 device_printf(sc->sc_dev, 4212 "%s: could not load firmware, error %d\n", __func__, error); 4213 return; 4214 } 4215 4216 /* firmware has notified us that it is alive.. */ 4217 iwn_post_alive(sc); /* ..do post alive initialization */ 4218 4219 sc->rawtemp = sc->ucode_info.temp[3].chan20MHz; 4220 sc->temp = iwn_get_temperature(sc); 4221 DPRINTF(sc, IWN_DEBUG_RESET, "%s: temperature=%d\n", 4222 __func__, sc->temp); 4223 4224 error = iwn_config(sc); 4225 if (error != 0) { 4226 device_printf(sc->sc_dev, 4227 "%s: could not configure device, error %d\n", 4228 __func__, error); 4229 return; 4230 } 4231 4232 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 4233 ifp->if_drv_flags |= IFF_DRV_RUNNING; 4234 } 4235 4236 void 4237 iwn_init(void *arg) 4238 { 4239 struct iwn_softc *sc = arg; 4240 struct ifnet *ifp = sc->sc_ifp; 4241 struct ieee80211com *ic = ifp->if_l2com; 4242 4243 IWN_LOCK(sc); 4244 iwn_init_locked(sc); 4245 IWN_UNLOCK(sc); 4246 4247 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 4248 ieee80211_start_all(ic); 4249 } 4250 4251 void 4252 iwn_stop_locked(struct iwn_softc *sc) 4253 { 4254 struct ifnet *ifp = sc->sc_ifp; 4255 uint32_t tmp; 4256 int i; 4257 4258 IWN_LOCK_ASSERT(sc); 4259 4260 IWN_WRITE(sc, IWN_RESET, IWN_NEVO_RESET); 4261 4262 sc->sc_tx_timer = 0; 4263 callout_stop(&sc->sc_timer_to); 4264 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 4265 4266 /* disable interrupts */ 4267 IWN_WRITE(sc, IWN_MASK, 0); 4268 IWN_WRITE(sc, IWN_INTR, 0xffffffff); 4269 IWN_WRITE(sc, IWN_INTR_STATUS, 0xffffffff); 4270 4271 /* reset all Tx rings */ 4272 for (i = 0; i < IWN_NTXQUEUES; i++) 4273 iwn_reset_tx_ring(sc, &sc->txq[i]); 4274 4275 /* reset Rx ring */ 4276 iwn_reset_rx_ring(sc, &sc->rxq); 4277 4278 iwn_mem_lock(sc); 4279 iwn_mem_write(sc, IWN_MEM_CLOCK2, 0x200); 4280 iwn_mem_unlock(sc); 4281 4282 DELAY(5); 4283 iwn_stop_master(sc); 4284 4285 tmp = IWN_READ(sc, IWN_RESET); 4286 IWN_WRITE(sc, IWN_RESET, tmp | IWN_SW_RESET); 4287 } 4288 4289 void 4290 iwn_stop(struct iwn_softc *sc) 4291 { 4292 IWN_LOCK(sc); 4293 iwn_stop_locked(sc); 4294 IWN_UNLOCK(sc); 4295 } 4296 4297 /* 4298 * Callback from net80211 to start a scan. 4299 */ 4300 static void 4301 iwn_scan_start(struct ieee80211com *ic) 4302 { 4303 struct ifnet *ifp = ic->ic_ifp; 4304 struct iwn_softc *sc = ifp->if_softc; 4305 4306 IWN_LOCK(sc); 4307 /* make the link LED blink while we're scanning */ 4308 iwn_set_led(sc, IWN_LED_LINK, 20, 2); 4309 IWN_UNLOCK(sc); 4310 } 4311 4312 /* 4313 * Callback from net80211 to terminate a scan. 4314 */ 4315 static void 4316 iwn_scan_end(struct ieee80211com *ic) 4317 { 4318 /* ignore */ 4319 } 4320 4321 /* 4322 * Callback from net80211 to force a channel change. 4323 */ 4324 static void 4325 iwn_set_channel(struct ieee80211com *ic) 4326 { 4327 struct ifnet *ifp = ic->ic_ifp; 4328 struct iwn_softc *sc = ifp->if_softc; 4329 struct ieee80211vap *vap; 4330 const struct ieee80211_channel *c = ic->ic_curchan; 4331 int error; 4332 4333 vap = TAILQ_FIRST(&ic->ic_vaps); /* XXX */ 4334 4335 IWN_LOCK(sc); 4336 if (c != sc->sc_curchan) { 4337 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq); 4338 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags); 4339 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq); 4340 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags); 4341 4342 error = iwn_config(sc); 4343 if (error != 0) { 4344 DPRINTF(sc, IWN_DEBUG_STATE, 4345 "%s: set chan failed, cancel scan\n", 4346 __func__); 4347 //XXX Handle failed scan correctly 4348 ieee80211_cancel_scan(vap); 4349 } 4350 } 4351 IWN_UNLOCK(sc); 4352 } 4353 4354 /* 4355 * Callback from net80211 to start scanning of the current channel. 4356 */ 4357 static void 4358 iwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 4359 { 4360 struct ieee80211vap *vap = ss->ss_vap; 4361 struct iwn_softc *sc = vap->iv_ic->ic_ifp->if_softc; 4362 int error; 4363 4364 IWN_LOCK(sc); 4365 error = iwn_scan(sc); 4366 IWN_UNLOCK(sc); 4367 if (error != 0) 4368 ieee80211_cancel_scan(vap); 4369 } 4370 4371 /* 4372 * Callback from net80211 to handle the minimum dwell time being met. 4373 * The intent is to terminate the scan but we just let the firmware 4374 * notify us when it's finished as we have no safe way to abort it. 4375 */ 4376 static void 4377 iwn_scan_mindwell(struct ieee80211_scan_state *ss) 4378 { 4379 /* NB: don't try to abort scan; wait for firmware to finish */ 4380 } 4381 4382 static void 4383 iwn_hwreset(void *arg0, int pending) 4384 { 4385 struct iwn_softc *sc = arg0; 4386 struct ifnet *ifp = sc->sc_ifp; 4387 struct ieee80211com *ic = ifp->if_l2com; 4388 4389 iwn_init(sc); 4390 ieee80211_notify_radio(ic, 1); 4391 } 4392 4393 static void 4394 iwn_radioon(void *arg0, int pending) 4395 { 4396 struct iwn_softc *sc = arg0; 4397 4398 iwn_init(sc); 4399 } 4400 4401 static void 4402 iwn_radiooff(void *arg0, int pending) 4403 { 4404 struct iwn_softc *sc = arg0; 4405 struct ifnet *ifp = sc->sc_ifp; 4406 struct ieee80211com *ic = ifp->if_l2com; 4407 4408 IWN_LOCK(sc); 4409 ieee80211_notify_radio(ic, 0); 4410 iwn_stop_locked(sc); 4411 IWN_UNLOCK(sc); 4412 } 4413 4414 static void 4415 iwn_sysctlattach(struct iwn_softc *sc) 4416 { 4417 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 4418 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 4419 4420 #ifdef IWN_DEBUG 4421 sc->sc_debug = 0; 4422 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 4423 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "control debugging printfs"); 4424 #endif 4425 } 4426 4427 #ifdef IWN_DEBUG 4428 static const char * 4429 iwn_intr_str(uint8_t cmd) 4430 { 4431 switch (cmd) { 4432 /* Notifications */ 4433 case IWN_UC_READY: return "UC_READY"; 4434 case IWN_ADD_NODE_DONE: return "ADD_NODE_DONE"; 4435 case IWN_TX_DONE: return "TX_DONE"; 4436 case IWN_START_SCAN: return "START_SCAN"; 4437 case IWN_STOP_SCAN: return "STOP_SCAN"; 4438 case IWN_RX_STATISTICS: return "RX_STATS"; 4439 case IWN_BEACON_STATISTICS: return "BEACON_STATS"; 4440 case IWN_STATE_CHANGED: return "STATE_CHANGED"; 4441 case IWN_BEACON_MISSED: return "BEACON_MISSED"; 4442 case IWN_AMPDU_RX_START: return "AMPDU_RX_START"; 4443 case IWN_AMPDU_RX_DONE: return "AMPDU_RX_DONE"; 4444 case IWN_RX_DONE: return "RX_DONE"; 4445 4446 /* Command Notifications */ 4447 case IWN_CMD_CONFIGURE: return "IWN_CMD_CONFIGURE"; 4448 case IWN_CMD_ASSOCIATE: return "IWN_CMD_ASSOCIATE"; 4449 case IWN_CMD_EDCA_PARAMS: return "IWN_CMD_EDCA_PARAMS"; 4450 case IWN_CMD_TSF: return "IWN_CMD_TSF"; 4451 case IWN_CMD_TX_LINK_QUALITY: return "IWN_CMD_TX_LINK_QUALITY"; 4452 case IWN_CMD_SET_LED: return "IWN_CMD_SET_LED"; 4453 case IWN_CMD_SET_POWER_MODE: return "IWN_CMD_SET_POWER_MODE"; 4454 case IWN_CMD_SCAN: return "IWN_CMD_SCAN"; 4455 case IWN_CMD_TXPOWER: return "IWN_CMD_TXPOWER"; 4456 case IWN_CMD_BLUETOOTH: return "IWN_CMD_BLUETOOTH"; 4457 case IWN_CMD_SET_CRITICAL_TEMP: return "IWN_CMD_SET_CRITICAL_TEMP"; 4458 case IWN_SENSITIVITY: return "IWN_SENSITIVITY"; 4459 case IWN_PHY_CALIB: return "IWN_PHY_CALIB"; 4460 } 4461 return "UNKNOWN INTR NOTIF/CMD"; 4462 } 4463 #endif /* IWN_DEBUG */ 4464 4465 static device_method_t iwn_methods[] = { 4466 /* Device interface */ 4467 DEVMETHOD(device_probe, iwn_probe), 4468 DEVMETHOD(device_attach, iwn_attach), 4469 DEVMETHOD(device_detach, iwn_detach), 4470 DEVMETHOD(device_shutdown, iwn_shutdown), 4471 DEVMETHOD(device_suspend, iwn_suspend), 4472 DEVMETHOD(device_resume, iwn_resume), 4473 4474 { 0, 0 } 4475 }; 4476 4477 static driver_t iwn_driver = { 4478 "iwn", 4479 iwn_methods, 4480 sizeof (struct iwn_softc) 4481 }; 4482 static devclass_t iwn_devclass; 4483 DRIVER_MODULE(iwn, pci, iwn_driver, iwn_devclass, 0, 0); 4484 MODULE_DEPEND(iwn, pci, 1, 1, 1); 4485 MODULE_DEPEND(iwn, firmware, 1, 1, 1); 4486 MODULE_DEPEND(iwn, wlan, 1, 1, 1); 4487 MODULE_DEPEND(iwn, wlan_amrr, 1, 1, 1); 4488