1 /* $NetBSD: if_wpi.c,v 1.92 2021/12/05 07:08:08 msaitoh Exp $ */ 2 3 /*- 4 * Copyright (c) 2006, 2007 5 * Damien Bergamini <damien.bergamini (at) free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/cdefs.h> 21 __KERNEL_RCSID(0, "$NetBSD: if_wpi.c,v 1.92 2021/12/05 07:08:08 msaitoh Exp $"); 22 23 /* 24 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters. 25 */ 26 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/mutex.h> 37 #include <sys/once.h> 38 #include <sys/conf.h> 39 #include <sys/kauth.h> 40 #include <sys/callout.h> 41 #include <sys/proc.h> 42 #include <sys/kthread.h> 43 44 #include <sys/bus.h> 45 #include <machine/endian.h> 46 #include <sys/intr.h> 47 48 #include <dev/pci/pcireg.h> 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcidevs.h> 51 52 #include <dev/sysmon/sysmonvar.h> 53 54 #include <net/bpf.h> 55 #include <net/if.h> 56 #include <net/if_arp.h> 57 #include <net/if_dl.h> 58 #include <net/if_ether.h> 59 #include <net/if_media.h> 60 #include <net/if_types.h> 61 62 #include <netinet/in.h> 63 #include <netinet/in_systm.h> 64 #include <netinet/in_var.h> 65 #include <netinet/ip.h> 66 67 #include <net80211/ieee80211_var.h> 68 #include <net80211/ieee80211_amrr.h> 69 #include <net80211/ieee80211_radiotap.h> 70 71 #include <dev/firmload.h> 72 73 #include <dev/pci/if_wpireg.h> 74 #include <dev/pci/if_wpivar.h> 75 76 static const char wpi_firmware_name[] = "iwlwifi-3945.ucode"; 77 static once_t wpi_firmware_init; 78 static kmutex_t wpi_firmware_mutex; 79 static size_t wpi_firmware_users; 80 static uint8_t *wpi_firmware_image; 81 static size_t wpi_firmware_size; 82 83 static int wpi_match(device_t, cfdata_t, void *); 84 static void wpi_attach(device_t, device_t, void *); 85 static int wpi_detach(device_t , int); 86 static int wpi_dma_contig_alloc(bus_dma_tag_t, struct wpi_dma_info *, 87 void **, bus_size_t, bus_size_t, int); 88 static void wpi_dma_contig_free(struct wpi_dma_info *); 89 static int wpi_alloc_shared(struct wpi_softc *); 90 static void wpi_free_shared(struct wpi_softc *); 91 static int wpi_alloc_fwmem(struct wpi_softc *); 92 static void wpi_free_fwmem(struct wpi_softc *); 93 static struct wpi_rbuf *wpi_alloc_rbuf(struct wpi_softc *); 94 static void wpi_free_rbuf(struct mbuf *, void *, size_t, void *); 95 static int wpi_alloc_rpool(struct wpi_softc *); 96 static void wpi_free_rpool(struct wpi_softc *); 97 static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 98 static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 99 static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 100 static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *, 101 int, int); 102 static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 103 static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 104 static struct ieee80211_node * wpi_node_alloc(struct ieee80211_node_table *); 105 static void wpi_newassoc(struct ieee80211_node *, int); 106 static int wpi_media_change(struct ifnet *); 107 static int wpi_newstate(struct ieee80211com *, enum ieee80211_state, int); 108 static void wpi_mem_lock(struct wpi_softc *); 109 static void wpi_mem_unlock(struct wpi_softc *); 110 static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t); 111 static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t); 112 static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t, 113 const uint32_t *, int); 114 static int wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int); 115 static int wpi_load_microcode(struct wpi_softc *, const uint8_t *, int); 116 static int wpi_cache_firmware(struct wpi_softc *); 117 static void wpi_release_firmware(void); 118 static int wpi_load_firmware(struct wpi_softc *); 119 static void wpi_calib_timeout(void *); 120 static void wpi_iter_func(void *, struct ieee80211_node *); 121 static void wpi_power_calibration(struct wpi_softc *, int); 122 static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *, 123 struct wpi_rx_data *); 124 static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *); 125 static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *); 126 static void wpi_notif_intr(struct wpi_softc *); 127 static int wpi_intr(void *); 128 static void wpi_softintr(void *); 129 static void wpi_read_eeprom(struct wpi_softc *); 130 static void wpi_read_eeprom_channels(struct wpi_softc *, int); 131 static void wpi_read_eeprom_group(struct wpi_softc *, int); 132 static uint8_t wpi_plcp_signal(int); 133 static int wpi_tx_data(struct wpi_softc *, struct mbuf *, 134 struct ieee80211_node *, int); 135 static void wpi_start(struct ifnet *); 136 static void wpi_watchdog(struct ifnet *); 137 static int wpi_ioctl(struct ifnet *, u_long, void *); 138 static int wpi_cmd(struct wpi_softc *, int, const void *, int, int); 139 static int wpi_wme_update(struct ieee80211com *); 140 static int wpi_mrr_setup(struct wpi_softc *); 141 static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t); 142 static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *); 143 static int wpi_set_txpower(struct wpi_softc *, 144 struct ieee80211_channel *, int); 145 static int wpi_get_power_index(struct wpi_softc *, 146 struct wpi_power_group *, struct ieee80211_channel *, int); 147 static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *); 148 static int wpi_auth(struct wpi_softc *); 149 static int wpi_scan(struct wpi_softc *); 150 static int wpi_config(struct wpi_softc *); 151 static void wpi_stop_master(struct wpi_softc *); 152 static int wpi_power_up(struct wpi_softc *); 153 static int wpi_reset(struct wpi_softc *); 154 static void wpi_hw_config(struct wpi_softc *); 155 static int wpi_init(struct ifnet *); 156 static void wpi_stop(struct ifnet *, int); 157 static bool wpi_resume(device_t, const pmf_qual_t *); 158 static int wpi_getrfkill(struct wpi_softc *); 159 static void wpi_sysctlattach(struct wpi_softc *); 160 static void wpi_rsw_thread(void *); 161 static void wpi_rsw_suspend(struct wpi_softc *); 162 static void wpi_stop_intr(struct ifnet *, int); 163 164 #ifdef WPI_DEBUG 165 #define DPRINTF(x) do { if (wpi_debug > 0) printf x; } while (0) 166 #define DPRINTFN(n, x) do { if (wpi_debug >= (n)) printf x; } while (0) 167 int wpi_debug = 1; 168 #else 169 #define DPRINTF(x) 170 #define DPRINTFN(n, x) 171 #endif 172 173 CFATTACH_DECL_NEW(wpi, sizeof (struct wpi_softc), wpi_match, wpi_attach, 174 wpi_detach, NULL); 175 176 static int 177 wpi_match(device_t parent, cfdata_t match __unused, void *aux) 178 { 179 struct pci_attach_args *pa = aux; 180 181 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 182 return 0; 183 184 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_3945ABG_1 || 185 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_3945ABG_2) 186 return 1; 187 188 return 0; 189 } 190 191 /* Base Address Register */ 192 #define WPI_PCI_BAR0 0x10 193 194 static int 195 wpi_attach_once(void) 196 { 197 198 mutex_init(&wpi_firmware_mutex, MUTEX_DEFAULT, IPL_NONE); 199 return 0; 200 } 201 202 static void 203 wpi_attach(device_t parent __unused, device_t self, void *aux) 204 { 205 struct wpi_softc *sc = device_private(self); 206 struct ieee80211com *ic = &sc->sc_ic; 207 struct ifnet *ifp = &sc->sc_ec.ec_if; 208 struct pci_attach_args *pa = aux; 209 const char *intrstr; 210 bus_space_tag_t memt; 211 bus_space_handle_t memh; 212 pcireg_t data; 213 int ac, error; 214 char intrbuf[PCI_INTRSTR_LEN]; 215 216 RUN_ONCE(&wpi_firmware_init, wpi_attach_once); 217 sc->fw_used = false; 218 219 sc->sc_dev = self; 220 sc->sc_pct = pa->pa_pc; 221 sc->sc_pcitag = pa->pa_tag; 222 223 sc->sc_rsw_status = WPI_RSW_UNKNOWN; 224 sc->sc_rsw.smpsw_name = device_xname(self); 225 sc->sc_rsw.smpsw_type = PSWITCH_TYPE_RADIO; 226 error = sysmon_pswitch_register(&sc->sc_rsw); 227 if (error) { 228 aprint_error_dev(self, 229 "unable to register radio switch with sysmon\n"); 230 return; 231 } 232 mutex_init(&sc->sc_rsw_mtx, MUTEX_DEFAULT, IPL_NONE); 233 cv_init(&sc->sc_rsw_cv, "wpirsw"); 234 sc->sc_rsw_suspend = false; 235 sc->sc_rsw_suspended = false; 236 if (kthread_create(PRI_NONE, 0, NULL, 237 wpi_rsw_thread, sc, &sc->sc_rsw_lwp, "%s", device_xname(self))) { 238 aprint_error_dev(self, "couldn't create switch thread\n"); 239 } 240 241 callout_init(&sc->calib_to, 0); 242 callout_setfunc(&sc->calib_to, wpi_calib_timeout, sc); 243 244 pci_aprint_devinfo(pa, NULL); 245 246 /* enable bus-mastering */ 247 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 248 data |= PCI_COMMAND_MASTER_ENABLE; 249 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 250 251 /* map the register window */ 252 error = pci_mapreg_map(pa, WPI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 253 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 254 if (error != 0) { 255 aprint_error_dev(self, "could not map memory space\n"); 256 return; 257 } 258 259 sc->sc_st = memt; 260 sc->sc_sh = memh; 261 sc->sc_dmat = pa->pa_dmat; 262 263 sc->sc_soft_ih = softint_establish(SOFTINT_NET, wpi_softintr, sc); 264 if (sc->sc_soft_ih == NULL) { 265 aprint_error_dev(self, "could not establish softint\n"); 266 goto unmap; 267 } 268 269 if (pci_intr_alloc(pa, &sc->sc_pihp, NULL, 0)) { 270 aprint_error_dev(self, "could not map interrupt\n"); 271 goto failsi; 272 } 273 274 intrstr = pci_intr_string(sc->sc_pct, sc->sc_pihp[0], intrbuf, 275 sizeof(intrbuf)); 276 sc->sc_ih = pci_intr_establish_xname(sc->sc_pct, sc->sc_pihp[0], 277 IPL_NET, wpi_intr, sc, device_xname(self)); 278 if (sc->sc_ih == NULL) { 279 aprint_error_dev(self, "could not establish interrupt"); 280 if (intrstr != NULL) 281 aprint_error(" at %s", intrstr); 282 aprint_error("\n"); 283 goto failia; 284 } 285 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 286 287 /* 288 * Put adapter into a known state. 289 */ 290 if ((error = wpi_reset(sc)) != 0) { 291 aprint_error_dev(self, "could not reset adapter\n"); 292 goto failih; 293 } 294 295 /* 296 * Allocate DMA memory for firmware transfers. 297 */ 298 if ((error = wpi_alloc_fwmem(sc)) != 0) { 299 aprint_error_dev(self, "could not allocate firmware memory\n"); 300 goto failih; 301 } 302 303 /* 304 * Allocate shared page and Tx/Rx rings. 305 */ 306 if ((error = wpi_alloc_shared(sc)) != 0) { 307 aprint_error_dev(self, "could not allocate shared area\n"); 308 goto fail1; 309 } 310 311 if ((error = wpi_alloc_rpool(sc)) != 0) { 312 aprint_error_dev(self, "could not allocate Rx buffers\n"); 313 goto fail2; 314 } 315 316 for (ac = 0; ac < 4; ac++) { 317 error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, 318 ac); 319 if (error != 0) { 320 aprint_error_dev(self, 321 "could not allocate Tx ring %d\n", ac); 322 goto fail3; 323 } 324 } 325 326 error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4); 327 if (error != 0) { 328 aprint_error_dev(self, "could not allocate command ring\n"); 329 goto fail3; 330 } 331 332 error = wpi_alloc_rx_ring(sc, &sc->rxq); 333 if (error != 0) { 334 aprint_error_dev(self, "could not allocate Rx ring\n"); 335 goto fail4; 336 } 337 338 ic->ic_ifp = ifp; 339 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 340 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 341 ic->ic_state = IEEE80211_S_INIT; 342 343 /* set device capabilities */ 344 ic->ic_caps = 345 IEEE80211_C_WPA | /* 802.11i */ 346 IEEE80211_C_MONITOR | /* monitor mode supported */ 347 IEEE80211_C_TXPMGT | /* tx power management */ 348 IEEE80211_C_SHSLOT | /* short slot time supported */ 349 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 350 IEEE80211_C_WME; /* 802.11e */ 351 352 /* read supported channels and MAC address from EEPROM */ 353 wpi_read_eeprom(sc); 354 355 /* set supported .11a, .11b and .11g rates */ 356 ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; 357 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 358 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 359 360 /* IBSS channel undefined for now */ 361 ic->ic_ibss_chan = &ic->ic_channels[0]; 362 363 ifp->if_softc = sc; 364 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 365 ifp->if_init = wpi_init; 366 ifp->if_stop = wpi_stop; 367 ifp->if_ioctl = wpi_ioctl; 368 ifp->if_start = wpi_start; 369 ifp->if_watchdog = wpi_watchdog; 370 IFQ_SET_READY(&ifp->if_snd); 371 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 372 373 if_initialize(ifp); 374 ieee80211_ifattach(ic); 375 /* Use common softint-based if_input */ 376 ifp->if_percpuq = if_percpuq_create(ifp); 377 if_register(ifp); 378 379 /* override default methods */ 380 ic->ic_node_alloc = wpi_node_alloc; 381 ic->ic_newassoc = wpi_newassoc; 382 ic->ic_wme.wme_update = wpi_wme_update; 383 384 /* override state transition machine */ 385 sc->sc_newstate = ic->ic_newstate; 386 ic->ic_newstate = wpi_newstate; 387 388 /* XXX media locking needs revisiting */ 389 mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 390 ieee80211_media_init_with_lock(ic, 391 wpi_media_change, ieee80211_media_status, &sc->sc_media_mtx); 392 393 sc->amrr.amrr_min_success_threshold = 1; 394 sc->amrr.amrr_max_success_threshold = 15; 395 396 wpi_sysctlattach(sc); 397 398 if (pmf_device_register(self, NULL, wpi_resume)) 399 pmf_class_network_register(self, ifp); 400 else 401 aprint_error_dev(self, "couldn't establish power handler\n"); 402 403 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 404 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 405 &sc->sc_drvbpf); 406 407 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 408 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 409 sc->sc_rxtap.wr_ihdr.it_present = htole32(WPI_RX_RADIOTAP_PRESENT); 410 411 sc->sc_txtap_len = sizeof sc->sc_txtapu; 412 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 413 sc->sc_txtap.wt_ihdr.it_present = htole32(WPI_TX_RADIOTAP_PRESENT); 414 415 ieee80211_announce(ic); 416 417 return; 418 419 /* free allocated memory if something failed during attachment */ 420 fail4: wpi_free_tx_ring(sc, &sc->cmdq); 421 fail3: while (--ac >= 0) 422 wpi_free_tx_ring(sc, &sc->txq[ac]); 423 wpi_free_rpool(sc); 424 fail2: wpi_free_shared(sc); 425 fail1: wpi_free_fwmem(sc); 426 failih: pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 427 sc->sc_ih = NULL; 428 failia: pci_intr_release(sc->sc_pct, sc->sc_pihp, 1); 429 sc->sc_pihp = NULL; 430 failsi: softint_disestablish(sc->sc_soft_ih); 431 sc->sc_soft_ih = NULL; 432 unmap: bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 433 } 434 435 static int 436 wpi_detach(device_t self, int flags __unused) 437 { 438 struct wpi_softc *sc = device_private(self); 439 struct ifnet *ifp = sc->sc_ic.ic_ifp; 440 int ac; 441 442 wpi_stop(ifp, 1); 443 444 if (ifp != NULL) 445 bpf_detach(ifp); 446 ieee80211_ifdetach(&sc->sc_ic); 447 if (ifp != NULL) 448 if_detach(ifp); 449 450 for (ac = 0; ac < 4; ac++) 451 wpi_free_tx_ring(sc, &sc->txq[ac]); 452 wpi_free_tx_ring(sc, &sc->cmdq); 453 wpi_free_rx_ring(sc, &sc->rxq); 454 wpi_free_rpool(sc); 455 wpi_free_shared(sc); 456 457 if (sc->sc_ih != NULL) { 458 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 459 sc->sc_ih = NULL; 460 } 461 if (sc->sc_pihp != NULL) { 462 pci_intr_release(sc->sc_pct, sc->sc_pihp, 1); 463 sc->sc_pihp = NULL; 464 } 465 if (sc->sc_soft_ih != NULL) { 466 softint_disestablish(sc->sc_soft_ih); 467 sc->sc_soft_ih = NULL; 468 } 469 470 mutex_enter(&sc->sc_rsw_mtx); 471 sc->sc_dying = 1; 472 cv_signal(&sc->sc_rsw_cv); 473 while (sc->sc_rsw_lwp != NULL) 474 cv_wait(&sc->sc_rsw_cv, &sc->sc_rsw_mtx); 475 mutex_exit(&sc->sc_rsw_mtx); 476 sysmon_pswitch_unregister(&sc->sc_rsw); 477 478 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 479 480 if (sc->fw_used) { 481 sc->fw_used = false; 482 wpi_release_firmware(); 483 } 484 cv_destroy(&sc->sc_rsw_cv); 485 mutex_destroy(&sc->sc_rsw_mtx); 486 return 0; 487 } 488 489 static int 490 wpi_dma_contig_alloc(bus_dma_tag_t tag, struct wpi_dma_info *dma, void **kvap, 491 bus_size_t size, bus_size_t alignment, int flags) 492 { 493 int nsegs, error; 494 495 dma->tag = tag; 496 dma->size = size; 497 498 error = bus_dmamap_create(tag, size, 1, size, 0, flags, &dma->map); 499 if (error != 0) 500 goto fail; 501 502 error = bus_dmamem_alloc(tag, size, alignment, 0, &dma->seg, 1, &nsegs, 503 flags); 504 if (error != 0) 505 goto fail; 506 507 error = bus_dmamem_map(tag, &dma->seg, 1, size, &dma->vaddr, flags); 508 if (error != 0) 509 goto fail; 510 511 error = bus_dmamap_load(tag, dma->map, dma->vaddr, size, NULL, flags); 512 if (error != 0) 513 goto fail; 514 515 memset(dma->vaddr, 0, size); 516 bus_dmamap_sync(dma->tag, dma->map, 0, size, BUS_DMASYNC_PREWRITE); 517 518 dma->paddr = dma->map->dm_segs[0].ds_addr; 519 if (kvap != NULL) 520 *kvap = dma->vaddr; 521 522 return 0; 523 524 fail: wpi_dma_contig_free(dma); 525 return error; 526 } 527 528 static void 529 wpi_dma_contig_free(struct wpi_dma_info *dma) 530 { 531 if (dma->map != NULL) { 532 if (dma->vaddr != NULL) { 533 bus_dmamap_unload(dma->tag, dma->map); 534 bus_dmamem_unmap(dma->tag, dma->vaddr, dma->size); 535 bus_dmamem_free(dma->tag, &dma->seg, 1); 536 dma->vaddr = NULL; 537 } 538 bus_dmamap_destroy(dma->tag, dma->map); 539 dma->map = NULL; 540 } 541 } 542 543 /* 544 * Allocate a shared page between host and NIC. 545 */ 546 static int 547 wpi_alloc_shared(struct wpi_softc *sc) 548 { 549 int error; 550 551 /* must be aligned on a 4K-page boundary */ 552 error = wpi_dma_contig_alloc(sc->sc_dmat, &sc->shared_dma, 553 (void **)&sc->shared, sizeof (struct wpi_shared), WPI_BUF_ALIGN, 554 BUS_DMA_NOWAIT); 555 if (error != 0) 556 aprint_error_dev(sc->sc_dev, 557 "could not allocate shared area DMA memory\n"); 558 559 return error; 560 } 561 562 static void 563 wpi_free_shared(struct wpi_softc *sc) 564 { 565 wpi_dma_contig_free(&sc->shared_dma); 566 } 567 568 /* 569 * Allocate DMA-safe memory for firmware transfer. 570 */ 571 static int 572 wpi_alloc_fwmem(struct wpi_softc *sc) 573 { 574 int error; 575 576 /* allocate enough contiguous space to store text and data */ 577 error = wpi_dma_contig_alloc(sc->sc_dmat, &sc->fw_dma, NULL, 578 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ, 0, 579 BUS_DMA_NOWAIT); 580 581 if (error != 0) 582 aprint_error_dev(sc->sc_dev, 583 "could not allocate firmware transfer area DMA memory\n"); 584 return error; 585 } 586 587 static void 588 wpi_free_fwmem(struct wpi_softc *sc) 589 { 590 wpi_dma_contig_free(&sc->fw_dma); 591 } 592 593 static struct wpi_rbuf * 594 wpi_alloc_rbuf(struct wpi_softc *sc) 595 { 596 struct wpi_rbuf *rbuf; 597 598 mutex_enter(&sc->rxq.freelist_mtx); 599 rbuf = SLIST_FIRST(&sc->rxq.freelist); 600 if (rbuf != NULL) { 601 SLIST_REMOVE_HEAD(&sc->rxq.freelist, next); 602 } 603 mutex_exit(&sc->rxq.freelist_mtx); 604 605 return rbuf; 606 } 607 608 /* 609 * This is called automatically by the network stack when the mbuf to which our 610 * Rx buffer is attached is freed. 611 */ 612 static void 613 wpi_free_rbuf(struct mbuf* m, void *buf, size_t size, void *arg) 614 { 615 struct wpi_rbuf *rbuf = arg; 616 struct wpi_softc *sc = rbuf->sc; 617 618 /* put the buffer back in the free list */ 619 620 mutex_enter(&sc->rxq.freelist_mtx); 621 SLIST_INSERT_HEAD(&sc->rxq.freelist, rbuf, next); 622 mutex_exit(&sc->rxq.freelist_mtx); 623 624 if (__predict_true(m != NULL)) 625 pool_cache_put(mb_cache, m); 626 } 627 628 static int 629 wpi_alloc_rpool(struct wpi_softc *sc) 630 { 631 struct wpi_rx_ring *ring = &sc->rxq; 632 int i, error; 633 634 /* allocate a big chunk of DMA'able memory.. */ 635 error = wpi_dma_contig_alloc(sc->sc_dmat, &ring->buf_dma, NULL, 636 WPI_RBUF_COUNT * WPI_RBUF_SIZE, WPI_BUF_ALIGN, BUS_DMA_NOWAIT); 637 if (error != 0) { 638 aprint_normal_dev(sc->sc_dev, 639 "could not allocate Rx buffers DMA memory\n"); 640 return error; 641 } 642 643 /* ..and split it into 3KB chunks */ 644 mutex_init(&ring->freelist_mtx, MUTEX_DEFAULT, IPL_NET); 645 SLIST_INIT(&ring->freelist); 646 for (i = 0; i < WPI_RBUF_COUNT; i++) { 647 struct wpi_rbuf *rbuf = &ring->rbuf[i]; 648 649 rbuf->sc = sc; /* backpointer for callbacks */ 650 rbuf->vaddr = (char *)ring->buf_dma.vaddr + i * WPI_RBUF_SIZE; 651 rbuf->paddr = ring->buf_dma.paddr + i * WPI_RBUF_SIZE; 652 653 SLIST_INSERT_HEAD(&ring->freelist, rbuf, next); 654 } 655 656 return 0; 657 } 658 659 static void 660 wpi_free_rpool(struct wpi_softc *sc) 661 { 662 mutex_destroy(&sc->rxq.freelist_mtx); 663 wpi_dma_contig_free(&sc->rxq.buf_dma); 664 } 665 666 static int 667 wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 668 { 669 bus_size_t size; 670 int i, error; 671 672 ring->cur = 0; 673 674 size = WPI_RX_RING_COUNT * sizeof (struct wpi_rx_desc); 675 error = wpi_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, 676 (void **)&ring->desc, size, 677 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 678 if (error != 0) { 679 aprint_error_dev(sc->sc_dev, 680 "could not allocate rx ring DMA memory\n"); 681 goto fail; 682 } 683 684 /* 685 * Setup Rx buffers. 686 */ 687 for (i = 0; i < WPI_RX_RING_COUNT; i++) { 688 struct wpi_rx_data *data = &ring->data[i]; 689 struct wpi_rbuf *rbuf; 690 691 error = bus_dmamap_create(sc->sc_dmat, WPI_RBUF_SIZE, 1, 692 WPI_RBUF_SIZE, 0, BUS_DMA_NOWAIT, &data->map); 693 if (error) { 694 aprint_error_dev(sc->sc_dev, 695 "could not allocate rx dma map\n"); 696 goto fail; 697 } 698 699 MGETHDR(data->m, M_DONTWAIT, MT_DATA); 700 if (data->m == NULL) { 701 aprint_error_dev(sc->sc_dev, 702 "could not allocate rx mbuf\n"); 703 error = ENOMEM; 704 goto fail; 705 } 706 if ((rbuf = wpi_alloc_rbuf(sc)) == NULL) { 707 m_freem(data->m); 708 data->m = NULL; 709 aprint_error_dev(sc->sc_dev, 710 "could not allocate rx cluster\n"); 711 error = ENOMEM; 712 goto fail; 713 } 714 /* attach Rx buffer to mbuf */ 715 MEXTADD(data->m, rbuf->vaddr, WPI_RBUF_SIZE, 0, wpi_free_rbuf, 716 rbuf); 717 data->m->m_flags |= M_EXT_RW; 718 719 error = bus_dmamap_load(sc->sc_dmat, data->map, 720 mtod(data->m, void *), WPI_RBUF_SIZE, NULL, 721 BUS_DMA_NOWAIT | BUS_DMA_READ); 722 if (error) { 723 aprint_error_dev(sc->sc_dev, 724 "could not load mbuf: %d\n", error); 725 goto fail; 726 } 727 728 ring->desc[i] = htole32(rbuf->paddr); 729 } 730 731 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, size, 732 BUS_DMASYNC_PREWRITE); 733 734 return 0; 735 736 fail: wpi_free_rx_ring(sc, ring); 737 return error; 738 } 739 740 static void 741 wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 742 { 743 int ntries; 744 745 wpi_mem_lock(sc); 746 747 WPI_WRITE(sc, WPI_RX_CONFIG, 0); 748 for (ntries = 0; ntries < 100; ntries++) { 749 if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE) 750 break; 751 DELAY(10); 752 } 753 #ifdef WPI_DEBUG 754 if (ntries == 100 && wpi_debug > 0) 755 aprint_error_dev(sc->sc_dev, "timeout resetting Rx ring\n"); 756 #endif 757 wpi_mem_unlock(sc); 758 759 ring->cur = 0; 760 } 761 762 static void 763 wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 764 { 765 int i; 766 767 wpi_dma_contig_free(&ring->desc_dma); 768 769 for (i = 0; i < WPI_RX_RING_COUNT; i++) { 770 if (ring->data[i].m != NULL) { 771 bus_dmamap_unload(sc->sc_dmat, ring->data[i].map); 772 m_freem(ring->data[i].m); 773 } 774 if (ring->data[i].map != NULL) { 775 bus_dmamap_destroy(sc->sc_dmat, ring->data[i].map); 776 } 777 } 778 } 779 780 static int 781 wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count, 782 int qid) 783 { 784 int i, error; 785 786 ring->qid = qid; 787 ring->count = count; 788 ring->queued = 0; 789 ring->cur = 0; 790 791 error = wpi_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, 792 (void **)&ring->desc, count * sizeof (struct wpi_tx_desc), 793 WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 794 if (error != 0) { 795 aprint_error_dev(sc->sc_dev, 796 "could not allocate tx ring DMA memory\n"); 797 goto fail; 798 } 799 800 /* update shared page with ring's base address */ 801 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr); 802 bus_dmamap_sync(sc->sc_dmat, sc->shared_dma.map, 0, 803 sizeof(struct wpi_shared), BUS_DMASYNC_PREWRITE); 804 805 error = wpi_dma_contig_alloc(sc->sc_dmat, &ring->cmd_dma, 806 (void **)&ring->cmd, count * sizeof (struct wpi_tx_cmd), 4, 807 BUS_DMA_NOWAIT); 808 if (error != 0) { 809 aprint_error_dev(sc->sc_dev, 810 "could not allocate tx cmd DMA memory\n"); 811 goto fail; 812 } 813 814 ring->data = malloc(count * sizeof (struct wpi_tx_data), M_DEVBUF, 815 M_WAITOK | M_ZERO); 816 817 for (i = 0; i < count; i++) { 818 struct wpi_tx_data *data = &ring->data[i]; 819 820 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 821 WPI_MAX_SCATTER - 1, MCLBYTES, 0, BUS_DMA_NOWAIT, 822 &data->map); 823 if (error != 0) { 824 aprint_error_dev(sc->sc_dev, 825 "could not create tx buf DMA map\n"); 826 goto fail; 827 } 828 } 829 830 return 0; 831 832 fail: wpi_free_tx_ring(sc, ring); 833 return error; 834 } 835 836 static void 837 wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 838 { 839 int i, ntries; 840 841 wpi_mem_lock(sc); 842 843 WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0); 844 for (ntries = 0; ntries < 100; ntries++) { 845 if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid)) 846 break; 847 DELAY(10); 848 } 849 #ifdef WPI_DEBUG 850 if (ntries == 100 && wpi_debug > 0) { 851 aprint_error_dev(sc->sc_dev, "timeout resetting Tx ring %d\n", 852 ring->qid); 853 } 854 #endif 855 wpi_mem_unlock(sc); 856 857 for (i = 0; i < ring->count; i++) { 858 struct wpi_tx_data *data = &ring->data[i]; 859 860 if (data->m != NULL) { 861 bus_dmamap_unload(sc->sc_dmat, data->map); 862 m_freem(data->m); 863 data->m = NULL; 864 } 865 } 866 867 ring->queued = 0; 868 ring->cur = 0; 869 } 870 871 static void 872 wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 873 { 874 int i; 875 876 wpi_dma_contig_free(&ring->desc_dma); 877 wpi_dma_contig_free(&ring->cmd_dma); 878 879 if (ring->data != NULL) { 880 for (i = 0; i < ring->count; i++) { 881 struct wpi_tx_data *data = &ring->data[i]; 882 883 if (data->m != NULL) { 884 bus_dmamap_unload(sc->sc_dmat, data->map); 885 m_freem(data->m); 886 } 887 } 888 free(ring->data, M_DEVBUF); 889 } 890 } 891 892 /*ARGUSED*/ 893 static struct ieee80211_node * 894 wpi_node_alloc(struct ieee80211_node_table *nt __unused) 895 { 896 struct wpi_node *wn; 897 898 wn = malloc(sizeof (struct wpi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 899 900 return (struct ieee80211_node *)wn; 901 } 902 903 static void 904 wpi_newassoc(struct ieee80211_node *ni, int isnew) 905 { 906 struct wpi_softc *sc = ni->ni_ic->ic_ifp->if_softc; 907 int i; 908 909 ieee80211_amrr_node_init(&sc->amrr, &((struct wpi_node *)ni)->amn); 910 911 /* set rate to some reasonable initial value */ 912 for (i = ni->ni_rates.rs_nrates - 1; 913 i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; 914 i--); 915 ni->ni_txrate = i; 916 } 917 918 static int 919 wpi_media_change(struct ifnet *ifp) 920 { 921 int error; 922 923 error = ieee80211_media_change(ifp); 924 if (error != ENETRESET) 925 return error; 926 927 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 928 wpi_init(ifp); 929 930 return 0; 931 } 932 933 static int 934 wpi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 935 { 936 struct ifnet *ifp = ic->ic_ifp; 937 struct wpi_softc *sc = ifp->if_softc; 938 struct ieee80211_node *ni; 939 enum ieee80211_state ostate = ic->ic_state; 940 int error; 941 942 callout_stop(&sc->calib_to); 943 944 switch (nstate) { 945 case IEEE80211_S_SCAN: 946 947 if (sc->is_scanning) 948 break; 949 950 sc->is_scanning = true; 951 952 if (ostate != IEEE80211_S_SCAN) { 953 /* make the link LED blink while we're scanning */ 954 wpi_set_led(sc, WPI_LED_LINK, 20, 2); 955 } 956 957 if ((error = wpi_scan(sc)) != 0) { 958 aprint_error_dev(sc->sc_dev, 959 "could not initiate scan\n"); 960 return error; 961 } 962 break; 963 964 case IEEE80211_S_ASSOC: 965 if (ic->ic_state != IEEE80211_S_RUN) 966 break; 967 /* FALLTHROUGH */ 968 case IEEE80211_S_AUTH: 969 /* reset state to handle reassociations correctly */ 970 sc->config.associd = 0; 971 sc->config.filter &= ~htole32(WPI_FILTER_BSS); 972 973 if ((error = wpi_auth(sc)) != 0) { 974 aprint_error_dev(sc->sc_dev, 975 "could not send authentication request\n"); 976 return error; 977 } 978 break; 979 980 case IEEE80211_S_RUN: 981 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 982 /* link LED blinks while monitoring */ 983 wpi_set_led(sc, WPI_LED_LINK, 5, 5); 984 break; 985 } 986 ni = ic->ic_bss; 987 988 if (ic->ic_opmode != IEEE80211_M_STA) { 989 (void) wpi_auth(sc); /* XXX */ 990 wpi_setup_beacon(sc, ni); 991 } 992 993 wpi_enable_tsf(sc, ni); 994 995 /* update adapter's configuration */ 996 sc->config.associd = htole16(ni->ni_associd & ~0xc000); 997 /* short preamble/slot time are negotiated when associating */ 998 sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE | 999 WPI_CONFIG_SHSLOT); 1000 if (ic->ic_flags & IEEE80211_F_SHSLOT) 1001 sc->config.flags |= htole32(WPI_CONFIG_SHSLOT); 1002 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1003 sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE); 1004 sc->config.filter |= htole32(WPI_FILTER_BSS); 1005 if (ic->ic_opmode != IEEE80211_M_STA) 1006 sc->config.filter |= htole32(WPI_FILTER_BEACON); 1007 1008 /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */ 1009 1010 DPRINTF(("config chan %d flags %x\n", sc->config.chan, 1011 sc->config.flags)); 1012 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 1013 sizeof (struct wpi_config), 1); 1014 if (error != 0) { 1015 aprint_error_dev(sc->sc_dev, 1016 "could not update configuration\n"); 1017 return error; 1018 } 1019 1020 /* configuration has changed, set Tx power accordingly */ 1021 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 1)) != 0) { 1022 aprint_error_dev(sc->sc_dev, 1023 "could not set Tx power\n"); 1024 return error; 1025 } 1026 1027 if (ic->ic_opmode == IEEE80211_M_STA) { 1028 /* fake a join to init the tx rate */ 1029 wpi_newassoc(ni, 1); 1030 } 1031 1032 /* start periodic calibration timer */ 1033 sc->calib_cnt = 0; 1034 callout_schedule(&sc->calib_to, hz/2); 1035 1036 /* link LED always on while associated */ 1037 wpi_set_led(sc, WPI_LED_LINK, 0, 1); 1038 break; 1039 1040 case IEEE80211_S_INIT: 1041 sc->is_scanning = false; 1042 break; 1043 } 1044 1045 return sc->sc_newstate(ic, nstate, arg); 1046 } 1047 1048 /* 1049 * Grab exclusive access to NIC memory. 1050 */ 1051 static void 1052 wpi_mem_lock(struct wpi_softc *sc) 1053 { 1054 uint32_t tmp; 1055 int ntries; 1056 1057 tmp = WPI_READ(sc, WPI_GPIO_CTL); 1058 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC); 1059 1060 /* spin until we actually get the lock */ 1061 for (ntries = 0; ntries < 1000; ntries++) { 1062 if ((WPI_READ(sc, WPI_GPIO_CTL) & 1063 (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK) 1064 break; 1065 DELAY(10); 1066 } 1067 if (ntries == 1000) 1068 aprint_error_dev(sc->sc_dev, "could not lock memory\n"); 1069 } 1070 1071 /* 1072 * Release lock on NIC memory. 1073 */ 1074 static void 1075 wpi_mem_unlock(struct wpi_softc *sc) 1076 { 1077 uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL); 1078 WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC); 1079 } 1080 1081 static uint32_t 1082 wpi_mem_read(struct wpi_softc *sc, uint16_t addr) 1083 { 1084 WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr); 1085 return WPI_READ(sc, WPI_READ_MEM_DATA); 1086 } 1087 1088 static void 1089 wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data) 1090 { 1091 WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr); 1092 WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data); 1093 } 1094 1095 static void 1096 wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr, 1097 const uint32_t *data, int wlen) 1098 { 1099 for (; wlen > 0; wlen--, data++, addr += 4) 1100 wpi_mem_write(sc, addr, *data); 1101 } 1102 1103 /* 1104 * Read `len' bytes from the EEPROM. We access the EEPROM through the MAC 1105 * instead of using the traditional bit-bang method. 1106 */ 1107 static int 1108 wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int len) 1109 { 1110 uint8_t *out = data; 1111 uint32_t val; 1112 int ntries; 1113 1114 wpi_mem_lock(sc); 1115 for (; len > 0; len -= 2, addr++) { 1116 WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2); 1117 1118 for (ntries = 0; ntries < 10; ntries++) { 1119 if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & 1120 WPI_EEPROM_READY) 1121 break; 1122 DELAY(5); 1123 } 1124 if (ntries == 10) { 1125 aprint_error_dev(sc->sc_dev, "could not read EEPROM\n"); 1126 return ETIMEDOUT; 1127 } 1128 *out++ = val >> 16; 1129 if (len > 1) 1130 *out++ = val >> 24; 1131 } 1132 wpi_mem_unlock(sc); 1133 1134 return 0; 1135 } 1136 1137 /* 1138 * The firmware boot code is small and is intended to be copied directly into 1139 * the NIC internal memory. 1140 */ 1141 int 1142 wpi_load_microcode(struct wpi_softc *sc, const uint8_t *ucode, int size) 1143 { 1144 int ntries; 1145 1146 size /= sizeof (uint32_t); 1147 1148 wpi_mem_lock(sc); 1149 1150 /* copy microcode image into NIC memory */ 1151 wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE, 1152 (const uint32_t *)ucode, size); 1153 1154 wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0); 1155 wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT); 1156 wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size); 1157 1158 /* run microcode */ 1159 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN); 1160 1161 /* wait for transfer to complete */ 1162 for (ntries = 0; ntries < 1000; ntries++) { 1163 if (!(wpi_mem_read(sc, WPI_MEM_UCODE_CTL) & WPI_UC_RUN)) 1164 break; 1165 DELAY(10); 1166 } 1167 if (ntries == 1000) { 1168 wpi_mem_unlock(sc); 1169 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 1170 return ETIMEDOUT; 1171 } 1172 wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_ENABLE); 1173 1174 wpi_mem_unlock(sc); 1175 1176 return 0; 1177 } 1178 1179 static int 1180 wpi_cache_firmware(struct wpi_softc *sc) 1181 { 1182 const char *const fwname = wpi_firmware_name; 1183 firmware_handle_t fw; 1184 int error; 1185 1186 /* sc is used here only to report error messages. */ 1187 1188 mutex_enter(&wpi_firmware_mutex); 1189 1190 if (wpi_firmware_users == SIZE_MAX) { 1191 mutex_exit(&wpi_firmware_mutex); 1192 return ENFILE; /* Too many of something in the system... */ 1193 } 1194 if (wpi_firmware_users++) { 1195 KASSERT(wpi_firmware_image != NULL); 1196 KASSERT(wpi_firmware_size > 0); 1197 mutex_exit(&wpi_firmware_mutex); 1198 return 0; /* Already good to go. */ 1199 } 1200 1201 KASSERT(wpi_firmware_image == NULL); 1202 KASSERT(wpi_firmware_size == 0); 1203 1204 /* load firmware image from disk */ 1205 if ((error = firmware_open("if_wpi", fwname, &fw)) != 0) { 1206 aprint_error_dev(sc->sc_dev, 1207 "could not open firmware file %s: %d\n", fwname, error); 1208 goto fail0; 1209 } 1210 1211 wpi_firmware_size = firmware_get_size(fw); 1212 1213 if (wpi_firmware_size > sizeof (struct wpi_firmware_hdr) + 1214 WPI_FW_MAIN_TEXT_MAXSZ + WPI_FW_MAIN_DATA_MAXSZ + 1215 WPI_FW_INIT_TEXT_MAXSZ + WPI_FW_INIT_DATA_MAXSZ + 1216 WPI_FW_BOOT_TEXT_MAXSZ) { 1217 aprint_error_dev(sc->sc_dev, 1218 "firmware file %s too large: %zu bytes\n", 1219 fwname, wpi_firmware_size); 1220 error = EFBIG; 1221 goto fail1; 1222 } 1223 1224 if (wpi_firmware_size < sizeof (struct wpi_firmware_hdr)) { 1225 aprint_error_dev(sc->sc_dev, 1226 "firmware file %s too small: %zu bytes\n", 1227 fwname, wpi_firmware_size); 1228 error = EINVAL; 1229 goto fail1; 1230 } 1231 1232 wpi_firmware_image = firmware_malloc(wpi_firmware_size); 1233 if (wpi_firmware_image == NULL) { 1234 aprint_error_dev(sc->sc_dev, 1235 "not enough memory for firmware file %s\n", fwname); 1236 error = ENOMEM; 1237 goto fail1; 1238 } 1239 1240 error = firmware_read(fw, 0, wpi_firmware_image, wpi_firmware_size); 1241 if (error != 0) { 1242 aprint_error_dev(sc->sc_dev, 1243 "error reading firmware file %s: %d\n", fwname, error); 1244 goto fail2; 1245 } 1246 1247 /* Success! */ 1248 firmware_close(fw); 1249 mutex_exit(&wpi_firmware_mutex); 1250 return 0; 1251 1252 fail2: 1253 firmware_free(wpi_firmware_image, wpi_firmware_size); 1254 wpi_firmware_image = NULL; 1255 fail1: 1256 wpi_firmware_size = 0; 1257 firmware_close(fw); 1258 fail0: 1259 KASSERT(wpi_firmware_users == 1); 1260 wpi_firmware_users = 0; 1261 KASSERT(wpi_firmware_image == NULL); 1262 KASSERT(wpi_firmware_size == 0); 1263 1264 mutex_exit(&wpi_firmware_mutex); 1265 return error; 1266 } 1267 1268 static void 1269 wpi_release_firmware(void) 1270 { 1271 1272 mutex_enter(&wpi_firmware_mutex); 1273 1274 KASSERT(wpi_firmware_users > 0); 1275 KASSERT(wpi_firmware_image != NULL); 1276 KASSERT(wpi_firmware_size != 0); 1277 1278 if (--wpi_firmware_users == 0) { 1279 firmware_free(wpi_firmware_image, wpi_firmware_size); 1280 wpi_firmware_image = NULL; 1281 wpi_firmware_size = 0; 1282 } 1283 1284 mutex_exit(&wpi_firmware_mutex); 1285 } 1286 1287 static int 1288 wpi_load_firmware(struct wpi_softc *sc) 1289 { 1290 struct wpi_dma_info *dma = &sc->fw_dma; 1291 struct wpi_firmware_hdr hdr; 1292 const uint8_t *init_text, *init_data, *main_text, *main_data; 1293 const uint8_t *boot_text; 1294 uint32_t init_textsz, init_datasz, main_textsz, main_datasz; 1295 uint32_t boot_textsz; 1296 size_t size; 1297 int error; 1298 1299 if (!sc->fw_used) { 1300 if ((error = wpi_cache_firmware(sc)) != 0) 1301 return error; 1302 sc->fw_used = true; 1303 } 1304 1305 KASSERT(sc->fw_used); 1306 KASSERT(wpi_firmware_image != NULL); 1307 KASSERT(wpi_firmware_size > sizeof(hdr)); 1308 1309 memcpy(&hdr, wpi_firmware_image, sizeof(hdr)); 1310 1311 main_textsz = le32toh(hdr.main_textsz); 1312 main_datasz = le32toh(hdr.main_datasz); 1313 init_textsz = le32toh(hdr.init_textsz); 1314 init_datasz = le32toh(hdr.init_datasz); 1315 boot_textsz = le32toh(hdr.boot_textsz); 1316 1317 /* sanity-check firmware segments sizes */ 1318 if (main_textsz > WPI_FW_MAIN_TEXT_MAXSZ || 1319 main_datasz > WPI_FW_MAIN_DATA_MAXSZ || 1320 init_textsz > WPI_FW_INIT_TEXT_MAXSZ || 1321 init_datasz > WPI_FW_INIT_DATA_MAXSZ || 1322 boot_textsz > WPI_FW_BOOT_TEXT_MAXSZ || 1323 (boot_textsz & 3) != 0) { 1324 aprint_error_dev(sc->sc_dev, "invalid firmware header\n"); 1325 error = EINVAL; 1326 goto free_firmware; 1327 } 1328 1329 /* check that all firmware segments are present */ 1330 size = sizeof (struct wpi_firmware_hdr) + main_textsz + 1331 main_datasz + init_textsz + init_datasz + boot_textsz; 1332 if (wpi_firmware_size < size) { 1333 aprint_error_dev(sc->sc_dev, 1334 "firmware file truncated: %zu bytes, expected %zu bytes\n", 1335 wpi_firmware_size, size); 1336 error = EINVAL; 1337 goto free_firmware; 1338 } 1339 1340 /* get pointers to firmware segments */ 1341 main_text = wpi_firmware_image + sizeof (struct wpi_firmware_hdr); 1342 main_data = main_text + main_textsz; 1343 init_text = main_data + main_datasz; 1344 init_data = init_text + init_textsz; 1345 boot_text = init_data + init_datasz; 1346 1347 /* copy initialization images into pre-allocated DMA-safe memory */ 1348 memcpy(dma->vaddr, init_data, init_datasz); 1349 memcpy((char *)dma->vaddr + WPI_FW_INIT_DATA_MAXSZ, init_text, 1350 init_textsz); 1351 1352 bus_dmamap_sync(dma->tag, dma->map, 0, dma->size, BUS_DMASYNC_PREWRITE); 1353 1354 /* tell adapter where to find initialization images */ 1355 wpi_mem_lock(sc); 1356 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr); 1357 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, init_datasz); 1358 wpi_mem_write(sc, WPI_MEM_TEXT_BASE, 1359 dma->paddr + WPI_FW_INIT_DATA_MAXSZ); 1360 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, init_textsz); 1361 wpi_mem_unlock(sc); 1362 1363 /* load firmware boot code */ 1364 if ((error = wpi_load_microcode(sc, boot_text, boot_textsz)) != 0) { 1365 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 1366 return error; 1367 } 1368 1369 /* now press "execute" ;-) */ 1370 WPI_WRITE(sc, WPI_RESET, 0); 1371 1372 /* wait at most one second for first alive notification */ 1373 if ((error = tsleep(sc, PCATCH, "wpiinit", hz)) != 0) { 1374 /* this isn't what was supposed to happen.. */ 1375 aprint_error_dev(sc->sc_dev, 1376 "timeout waiting for adapter to initialize\n"); 1377 } 1378 1379 /* copy runtime images into pre-allocated DMA-safe memory */ 1380 memcpy(dma->vaddr, main_data, main_datasz); 1381 memcpy((char *)dma->vaddr + WPI_FW_MAIN_DATA_MAXSZ, main_text, 1382 main_textsz); 1383 1384 bus_dmamap_sync(dma->tag, dma->map, 0, dma->size, BUS_DMASYNC_PREWRITE); 1385 1386 /* tell adapter where to find runtime images */ 1387 wpi_mem_lock(sc); 1388 wpi_mem_write(sc, WPI_MEM_DATA_BASE, dma->paddr); 1389 wpi_mem_write(sc, WPI_MEM_DATA_SIZE, main_datasz); 1390 wpi_mem_write(sc, WPI_MEM_TEXT_BASE, 1391 dma->paddr + WPI_FW_MAIN_DATA_MAXSZ); 1392 wpi_mem_write(sc, WPI_MEM_TEXT_SIZE, WPI_FW_UPDATED | main_textsz); 1393 wpi_mem_unlock(sc); 1394 1395 /* wait at most one second for second alive notification */ 1396 if ((error = tsleep(sc, PCATCH, "wpiinit", hz)) != 0) { 1397 /* this isn't what was supposed to happen.. */ 1398 aprint_error_dev(sc->sc_dev, 1399 "timeout waiting for adapter to initialize\n"); 1400 } 1401 1402 return error; 1403 1404 free_firmware: 1405 sc->fw_used = false; 1406 wpi_release_firmware(); 1407 return error; 1408 } 1409 1410 static void 1411 wpi_calib_timeout(void *arg) 1412 { 1413 struct wpi_softc *sc = arg; 1414 struct ieee80211com *ic = &sc->sc_ic; 1415 int temp, s; 1416 1417 /* automatic rate control triggered every 500ms */ 1418 if (ic->ic_fixed_rate == -1) { 1419 s = splnet(); 1420 if (ic->ic_opmode == IEEE80211_M_STA) 1421 wpi_iter_func(sc, ic->ic_bss); 1422 else 1423 ieee80211_iterate_nodes(&ic->ic_sta, wpi_iter_func, sc); 1424 splx(s); 1425 } 1426 1427 /* update sensor data */ 1428 temp = (int)WPI_READ(sc, WPI_TEMPERATURE); 1429 1430 /* automatic power calibration every 60s */ 1431 if (++sc->calib_cnt >= 120) { 1432 wpi_power_calibration(sc, temp); 1433 sc->calib_cnt = 0; 1434 } 1435 1436 callout_schedule(&sc->calib_to, hz/2); 1437 } 1438 1439 static void 1440 wpi_iter_func(void *arg, struct ieee80211_node *ni) 1441 { 1442 struct wpi_softc *sc = arg; 1443 struct wpi_node *wn = (struct wpi_node *)ni; 1444 1445 ieee80211_amrr_choose(&sc->amrr, ni, &wn->amn); 1446 } 1447 1448 /* 1449 * This function is called periodically (every 60 seconds) to adjust output 1450 * power to temperature changes. 1451 */ 1452 void 1453 wpi_power_calibration(struct wpi_softc *sc, int temp) 1454 { 1455 /* sanity-check read value */ 1456 if (temp < -260 || temp > 25) { 1457 /* this can't be correct, ignore */ 1458 DPRINTF(("out-of-range temperature reported: %d\n", temp)); 1459 return; 1460 } 1461 1462 DPRINTF(("temperature %d->%d\n", sc->temp, temp)); 1463 1464 /* adjust Tx power if need be */ 1465 if (abs(temp - sc->temp) <= 6) 1466 return; 1467 1468 sc->temp = temp; 1469 1470 if (wpi_set_txpower(sc, sc->sc_ic.ic_curchan, 1) != 0) { 1471 /* just warn, too bad for the automatic calibration... */ 1472 aprint_error_dev(sc->sc_dev, "could not adjust Tx power\n"); 1473 } 1474 } 1475 1476 static void 1477 wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc, 1478 struct wpi_rx_data *data) 1479 { 1480 struct ieee80211com *ic = &sc->sc_ic; 1481 struct ifnet *ifp = ic->ic_ifp; 1482 struct wpi_rx_ring *ring = &sc->rxq; 1483 struct wpi_rx_stat *stat; 1484 struct wpi_rx_head *head; 1485 struct wpi_rx_tail *tail; 1486 struct wpi_rbuf *rbuf; 1487 struct ieee80211_frame *wh; 1488 struct ieee80211_node *ni; 1489 struct mbuf *m, *mnew; 1490 int data_off, error, s; 1491 1492 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1493 BUS_DMASYNC_POSTREAD); 1494 stat = (struct wpi_rx_stat *)(desc + 1); 1495 1496 if (stat->len > WPI_STAT_MAXLEN) { 1497 aprint_error_dev(sc->sc_dev, "invalid rx statistic header\n"); 1498 if_statinc(ifp, if_ierrors); 1499 return; 1500 } 1501 1502 head = (struct wpi_rx_head *)((char *)(stat + 1) + stat->len); 1503 tail = (struct wpi_rx_tail *)((char *)(head + 1) + le16toh(head->len)); 1504 1505 DPRINTFN(4, ("rx intr: idx=%d len=%d stat len=%d rssi=%d rate=%x " 1506 "chan=%d tstamp=%" PRIu64 "\n", ring->cur, le32toh(desc->len), 1507 le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan, 1508 le64toh(tail->tstamp))); 1509 1510 /* 1511 * Discard Rx frames with bad CRC early (XXX we may want to pass them 1512 * to radiotap in monitor mode). 1513 */ 1514 if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) { 1515 DPRINTF(("rx tail flags error %x\n", 1516 le32toh(tail->flags))); 1517 if_statinc(ifp, if_ierrors); 1518 return; 1519 } 1520 1521 /* Compute where are the useful datas */ 1522 data_off = (char*)(head + 1) - mtod(data->m, char*); 1523 1524 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1525 if (mnew == NULL) { 1526 if_statinc(ifp, if_ierrors); 1527 return; 1528 } 1529 1530 rbuf = wpi_alloc_rbuf(sc); 1531 if (rbuf == NULL) { 1532 m_freem(mnew); 1533 if_statinc(ifp, if_ierrors); 1534 return; 1535 } 1536 1537 /* attach Rx buffer to mbuf */ 1538 MEXTADD(mnew, rbuf->vaddr, WPI_RBUF_SIZE, 0, wpi_free_rbuf, 1539 rbuf); 1540 mnew->m_flags |= M_EXT_RW; 1541 1542 bus_dmamap_unload(sc->sc_dmat, data->map); 1543 1544 error = bus_dmamap_load(sc->sc_dmat, data->map, 1545 mtod(mnew, void *), WPI_RBUF_SIZE, NULL, 1546 BUS_DMA_NOWAIT | BUS_DMA_READ); 1547 if (error) { 1548 device_printf(sc->sc_dev, 1549 "couldn't load rx mbuf: %d\n", error); 1550 m_freem(mnew); 1551 if_statinc(ifp, if_ierrors); 1552 1553 error = bus_dmamap_load(sc->sc_dmat, data->map, 1554 mtod(data->m, void *), WPI_RBUF_SIZE, NULL, 1555 BUS_DMA_NOWAIT | BUS_DMA_READ); 1556 if (error) 1557 panic("%s: bus_dmamap_load failed: %d\n", 1558 device_xname(sc->sc_dev), error); 1559 return; 1560 } 1561 1562 /* new mbuf loaded successfully */ 1563 m = data->m; 1564 data->m = mnew; 1565 1566 /* update Rx descriptor */ 1567 ring->desc[ring->cur] = htole32(rbuf->paddr); 1568 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, 1569 ring->desc_dma.size, 1570 BUS_DMASYNC_PREWRITE); 1571 1572 m->m_data = (char*)m->m_data + data_off; 1573 m->m_pkthdr.len = m->m_len = le16toh(head->len); 1574 1575 /* finalize mbuf */ 1576 m_set_rcvif(m, ifp); 1577 1578 s = splnet(); 1579 1580 if (sc->sc_drvbpf != NULL) { 1581 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap; 1582 1583 tap->wr_flags = 0; 1584 tap->wr_chan_freq = 1585 htole16(ic->ic_channels[head->chan].ic_freq); 1586 tap->wr_chan_flags = 1587 htole16(ic->ic_channels[head->chan].ic_flags); 1588 tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET); 1589 tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise); 1590 tap->wr_tsft = tail->tstamp; 1591 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf; 1592 switch (head->rate) { 1593 /* CCK rates */ 1594 case 10: tap->wr_rate = 2; break; 1595 case 20: tap->wr_rate = 4; break; 1596 case 55: tap->wr_rate = 11; break; 1597 case 110: tap->wr_rate = 22; break; 1598 /* OFDM rates */ 1599 case 0xd: tap->wr_rate = 12; break; 1600 case 0xf: tap->wr_rate = 18; break; 1601 case 0x5: tap->wr_rate = 24; break; 1602 case 0x7: tap->wr_rate = 36; break; 1603 case 0x9: tap->wr_rate = 48; break; 1604 case 0xb: tap->wr_rate = 72; break; 1605 case 0x1: tap->wr_rate = 96; break; 1606 case 0x3: tap->wr_rate = 108; break; 1607 /* unknown rate: should not happen */ 1608 default: tap->wr_rate = 0; 1609 } 1610 if (le16toh(head->flags) & 0x4) 1611 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 1612 1613 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1614 } 1615 1616 /* grab a reference to the source node */ 1617 wh = mtod(m, struct ieee80211_frame *); 1618 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1619 1620 /* send the frame to the 802.11 layer */ 1621 ieee80211_input(ic, m, ni, stat->rssi, 0); 1622 1623 /* release node reference */ 1624 ieee80211_free_node(ni); 1625 1626 splx(s); 1627 } 1628 1629 static void 1630 wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) 1631 { 1632 struct ifnet *ifp = sc->sc_ic.ic_ifp; 1633 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3]; 1634 struct wpi_tx_data *data = &ring->data[desc->idx]; 1635 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1); 1636 struct wpi_node *wn = (struct wpi_node *)data->ni; 1637 int s; 1638 1639 DPRINTFN(4, ("tx done: qid=%d idx=%d retries=%d nkill=%d rate=%x " 1640 "duration=%d status=%x\n", desc->qid, desc->idx, stat->ntries, 1641 stat->nkill, stat->rate, le32toh(stat->duration), 1642 le32toh(stat->status))); 1643 1644 s = splnet(); 1645 1646 /* 1647 * Update rate control statistics for the node. 1648 * XXX we should not count mgmt frames since they're always sent at 1649 * the lowest available bit-rate. 1650 */ 1651 wn->amn.amn_txcnt++; 1652 if (stat->ntries > 0) { 1653 DPRINTFN(3, ("tx intr ntries %d\n", stat->ntries)); 1654 wn->amn.amn_retrycnt++; 1655 } 1656 1657 if ((le32toh(stat->status) & 0xff) != 1) 1658 if_statinc(ifp, if_oerrors); 1659 else 1660 if_statinc(ifp, if_opackets); 1661 1662 bus_dmamap_unload(sc->sc_dmat, data->map); 1663 m_freem(data->m); 1664 data->m = NULL; 1665 ieee80211_free_node(data->ni); 1666 data->ni = NULL; 1667 1668 ring->queued--; 1669 1670 sc->sc_tx_timer = 0; 1671 ifp->if_flags &= ~IFF_OACTIVE; 1672 wpi_start(ifp); /* in softint */ 1673 1674 splx(s); 1675 } 1676 1677 static void 1678 wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) 1679 { 1680 struct wpi_tx_ring *ring = &sc->cmdq; 1681 struct wpi_tx_data *data; 1682 1683 if ((desc->qid & 7) != 4) 1684 return; /* not a command ack */ 1685 1686 data = &ring->data[desc->idx]; 1687 1688 /* if the command was mapped in a mbuf, free it */ 1689 if (data->m != NULL) { 1690 bus_dmamap_unload(sc->sc_dmat, data->map); 1691 m_freem(data->m); 1692 data->m = NULL; 1693 } 1694 1695 wakeup(&ring->cmd[desc->idx]); 1696 } 1697 1698 static void 1699 wpi_notif_intr(struct wpi_softc *sc) 1700 { 1701 struct ieee80211com *ic = &sc->sc_ic; 1702 struct ifnet *ifp = ic->ic_ifp; 1703 uint32_t hw; 1704 int s; 1705 1706 bus_dmamap_sync(sc->sc_dmat, sc->shared_dma.map, 0, 1707 sizeof(struct wpi_shared), BUS_DMASYNC_POSTREAD); 1708 1709 hw = le32toh(sc->shared->next); 1710 while (sc->rxq.cur != hw) { 1711 struct wpi_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 1712 struct wpi_rx_desc *desc; 1713 1714 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1715 BUS_DMASYNC_POSTREAD); 1716 desc = mtod(data->m, struct wpi_rx_desc *); 1717 1718 DPRINTFN(4, ("rx notification qid=%x idx=%d flags=%x type=%d " 1719 "len=%d\n", desc->qid, desc->idx, desc->flags, 1720 desc->type, le32toh(desc->len))); 1721 1722 if (!(desc->qid & 0x80)) /* reply to a command */ 1723 wpi_cmd_intr(sc, desc); 1724 1725 switch (desc->type) { 1726 case WPI_RX_DONE: 1727 /* a 802.11 frame was received */ 1728 wpi_rx_intr(sc, desc, data); 1729 break; 1730 1731 case WPI_TX_DONE: 1732 /* a 802.11 frame has been transmitted */ 1733 wpi_tx_intr(sc, desc); 1734 break; 1735 1736 case WPI_UC_READY: 1737 { 1738 struct wpi_ucode_info *uc = 1739 (struct wpi_ucode_info *)(desc + 1); 1740 1741 /* the microcontroller is ready */ 1742 DPRINTF(("microcode alive notification version %x " 1743 "alive %x\n", le32toh(uc->version), 1744 le32toh(uc->valid))); 1745 1746 if (le32toh(uc->valid) != 1) { 1747 aprint_error_dev(sc->sc_dev, 1748 "microcontroller initialization failed\n"); 1749 } 1750 break; 1751 } 1752 case WPI_STATE_CHANGED: 1753 { 1754 uint32_t *status = (uint32_t *)(desc + 1); 1755 1756 /* enabled/disabled notification */ 1757 DPRINTF(("state changed to %x\n", le32toh(*status))); 1758 1759 if (le32toh(*status) & 1) { 1760 s = splnet(); 1761 /* the radio button has to be pushed */ 1762 /* wake up thread to signal powerd */ 1763 cv_signal(&sc->sc_rsw_cv); 1764 aprint_error_dev(sc->sc_dev, 1765 "Radio transmitter is off\n"); 1766 /* turn the interface down */ 1767 ifp->if_flags &= ~IFF_UP; 1768 wpi_stop_intr(ifp, 1); 1769 splx(s); 1770 return; /* no further processing */ 1771 } 1772 break; 1773 } 1774 case WPI_START_SCAN: 1775 { 1776 #if 0 1777 struct wpi_start_scan *scan = 1778 (struct wpi_start_scan *)(desc + 1); 1779 1780 DPRINTFN(2, ("scanning channel %d status %x\n", 1781 scan->chan, le32toh(scan->status))); 1782 1783 /* fix current channel */ 1784 ic->ic_curchan = &ic->ic_channels[scan->chan]; 1785 #endif 1786 break; 1787 } 1788 case WPI_STOP_SCAN: 1789 { 1790 #ifdef WPI_DEBUG 1791 struct wpi_stop_scan *scan = 1792 (struct wpi_stop_scan *)(desc + 1); 1793 #endif 1794 1795 DPRINTF(("scan finished nchan=%d status=%d chan=%d\n", 1796 scan->nchan, scan->status, scan->chan)); 1797 1798 s = splnet(); 1799 sc->is_scanning = false; 1800 if (ic->ic_state == IEEE80211_S_SCAN) 1801 ieee80211_next_scan(ic); 1802 splx(s); 1803 break; 1804 } 1805 } 1806 1807 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT; 1808 } 1809 1810 /* tell the firmware what we have processed */ 1811 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1; 1812 WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7); 1813 } 1814 1815 static int 1816 wpi_intr(void *arg) 1817 { 1818 struct wpi_softc *sc = arg; 1819 uint32_t r; 1820 1821 r = WPI_READ(sc, WPI_INTR); 1822 if (r == 0 || r == 0xffffffff) 1823 return 0; /* not for us */ 1824 1825 DPRINTFN(6, ("interrupt reg %x\n", r)); 1826 1827 /* disable interrupts */ 1828 WPI_WRITE(sc, WPI_MASK, 0); 1829 1830 softint_schedule(sc->sc_soft_ih); 1831 return 1; 1832 } 1833 1834 static void 1835 wpi_softintr(void *arg) 1836 { 1837 struct wpi_softc *sc = arg; 1838 struct ifnet *ifp = sc->sc_ic.ic_ifp; 1839 uint32_t r; 1840 1841 r = WPI_READ(sc, WPI_INTR); 1842 if (r == 0 || r == 0xffffffff) 1843 goto out; 1844 1845 /* ack interrupts */ 1846 WPI_WRITE(sc, WPI_INTR, r); 1847 1848 if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) { 1849 /* SYSTEM FAILURE, SYSTEM FAILURE */ 1850 aprint_error_dev(sc->sc_dev, "fatal firmware error\n"); 1851 ifp->if_flags &= ~IFF_UP; 1852 wpi_stop_intr(ifp, 1); 1853 return; 1854 } 1855 1856 if (r & WPI_RX_INTR) 1857 wpi_notif_intr(sc); 1858 1859 if (r & WPI_ALIVE_INTR) /* firmware initialized */ 1860 wakeup(sc); 1861 1862 out: 1863 /* re-enable interrupts */ 1864 if (ifp->if_flags & IFF_UP) 1865 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); 1866 } 1867 1868 static uint8_t 1869 wpi_plcp_signal(int rate) 1870 { 1871 switch (rate) { 1872 /* CCK rates (returned values are device-dependent) */ 1873 case 2: return 10; 1874 case 4: return 20; 1875 case 11: return 55; 1876 case 22: return 110; 1877 1878 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1879 /* R1-R4, (u)ral is R4-R1 */ 1880 case 12: return 0xd; 1881 case 18: return 0xf; 1882 case 24: return 0x5; 1883 case 36: return 0x7; 1884 case 48: return 0x9; 1885 case 72: return 0xb; 1886 case 96: return 0x1; 1887 case 108: return 0x3; 1888 1889 /* unsupported rates (should not get there) */ 1890 default: return 0; 1891 } 1892 } 1893 1894 /* quickly determine if a given rate is CCK or OFDM */ 1895 #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 1896 1897 static int 1898 wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1899 int ac) 1900 { 1901 struct ieee80211com *ic = &sc->sc_ic; 1902 struct wpi_tx_ring *ring = &sc->txq[ac]; 1903 struct wpi_tx_desc *desc; 1904 struct wpi_tx_data *data; 1905 struct wpi_tx_cmd *cmd; 1906 struct wpi_cmd_data *tx; 1907 struct ieee80211_frame *wh; 1908 struct ieee80211_key *k; 1909 const struct chanAccParams *cap; 1910 struct mbuf *mnew; 1911 int i, rate, error, hdrlen, noack = 0; 1912 1913 desc = &ring->desc[ring->cur]; 1914 data = &ring->data[ring->cur]; 1915 1916 wh = mtod(m0, struct ieee80211_frame *); 1917 1918 if (ieee80211_has_qos(wh)) { 1919 cap = &ic->ic_wme.wme_chanParams; 1920 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1921 } 1922 1923 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1924 k = ieee80211_crypto_encap(ic, ni, m0); 1925 if (k == NULL) { 1926 m_freem(m0); 1927 return ENOBUFS; 1928 } 1929 1930 /* packet header may have moved, reset our local pointer */ 1931 wh = mtod(m0, struct ieee80211_frame *); 1932 } 1933 1934 hdrlen = ieee80211_anyhdrsize(wh); 1935 1936 /* pickup a rate */ 1937 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 1938 IEEE80211_FC0_TYPE_MGT) { 1939 /* mgmt frames are sent at the lowest available bit-rate */ 1940 rate = ni->ni_rates.rs_rates[0]; 1941 } else { 1942 if (ic->ic_fixed_rate != -1) { 1943 rate = ic->ic_sup_rates[ic->ic_curmode]. 1944 rs_rates[ic->ic_fixed_rate]; 1945 } else 1946 rate = ni->ni_rates.rs_rates[ni->ni_txrate]; 1947 } 1948 rate &= IEEE80211_RATE_VAL; 1949 1950 if (sc->sc_drvbpf != NULL) { 1951 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap; 1952 1953 tap->wt_flags = 0; 1954 tap->wt_chan_freq = htole16(ni->ni_chan->ic_freq); 1955 tap->wt_chan_flags = htole16(ni->ni_chan->ic_flags); 1956 tap->wt_rate = rate; 1957 tap->wt_hwqueue = ac; 1958 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 1959 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 1960 1961 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0, BPF_D_OUT); 1962 } 1963 1964 cmd = &ring->cmd[ring->cur]; 1965 cmd->code = WPI_CMD_TX_DATA; 1966 cmd->flags = 0; 1967 cmd->qid = ring->qid; 1968 cmd->idx = ring->cur; 1969 1970 tx = (struct wpi_cmd_data *)cmd->data; 1971 /* no need to zero tx, all fields are reinitialized here */ 1972 tx->flags = 0; 1973 1974 if (!noack && !IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1975 tx->flags |= htole32(WPI_TX_NEED_ACK); 1976 } else if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > ic->ic_rtsthreshold) 1977 tx->flags |= htole32(WPI_TX_NEED_RTS | WPI_TX_FULL_TXOP); 1978 1979 tx->flags |= htole32(WPI_TX_AUTO_SEQ); 1980 1981 /* retrieve destination node's id */ 1982 tx->id = IEEE80211_IS_MULTICAST(wh->i_addr1) ? WPI_ID_BROADCAST : 1983 WPI_ID_BSS; 1984 1985 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 1986 IEEE80211_FC0_TYPE_MGT) { 1987 /* tell h/w to set timestamp in probe responses */ 1988 if ((wh->i_fc[0] & 1989 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1990 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1991 tx->flags |= htole32(WPI_TX_INSERT_TSTAMP); 1992 1993 if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1994 IEEE80211_FC0_SUBTYPE_ASSOC_REQ) || 1995 ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1996 IEEE80211_FC0_SUBTYPE_REASSOC_REQ)) 1997 tx->timeout = htole16(3); 1998 else 1999 tx->timeout = htole16(2); 2000 } else 2001 tx->timeout = htole16(0); 2002 2003 tx->rate = wpi_plcp_signal(rate); 2004 2005 /* be very persistent at sending frames out */ 2006 tx->rts_ntries = 7; 2007 tx->data_ntries = 15; 2008 2009 tx->ofdm_mask = 0xff; 2010 tx->cck_mask = 0x0f; 2011 tx->lifetime = htole32(WPI_LIFETIME_INFINITE); 2012 2013 tx->len = htole16(m0->m_pkthdr.len); 2014 2015 /* save and trim IEEE802.11 header */ 2016 memcpy((uint8_t *)(tx + 1), wh, hdrlen); 2017 m_adj(m0, hdrlen); 2018 2019 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 2020 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 2021 if (error != 0 && error != EFBIG) { 2022 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 2023 error); 2024 m_freem(m0); 2025 return error; 2026 } 2027 if (error != 0) { 2028 /* too many fragments, linearize */ 2029 2030 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 2031 if (mnew == NULL) { 2032 m_freem(m0); 2033 return ENOMEM; 2034 } 2035 m_copy_pkthdr(mnew, m0); 2036 if (m0->m_pkthdr.len > MHLEN) { 2037 MCLGET(mnew, M_DONTWAIT); 2038 if (!(mnew->m_flags & M_EXT)) { 2039 m_freem(m0); 2040 m_freem(mnew); 2041 return ENOMEM; 2042 } 2043 } 2044 2045 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 2046 m_freem(m0); 2047 mnew->m_len = mnew->m_pkthdr.len; 2048 m0 = mnew; 2049 2050 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 2051 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 2052 if (error != 0) { 2053 aprint_error_dev(sc->sc_dev, 2054 "could not map mbuf (error %d)\n", error); 2055 m_freem(m0); 2056 return error; 2057 } 2058 } 2059 2060 data->m = m0; 2061 data->ni = ni; 2062 2063 DPRINTFN(4, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n", 2064 ring->qid, ring->cur, m0->m_pkthdr.len, data->map->dm_nsegs)); 2065 2066 /* first scatter/gather segment is used by the tx data command */ 2067 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2068 (1 + data->map->dm_nsegs) << 24); 2069 desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 2070 ring->cur * sizeof (struct wpi_tx_cmd)); 2071 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data) + 2072 ((hdrlen + 3) & ~3)); 2073 for (i = 1; i <= data->map->dm_nsegs; i++) { 2074 desc->segs[i].addr = 2075 htole32(data->map->dm_segs[i - 1].ds_addr); 2076 desc->segs[i].len = 2077 htole32(data->map->dm_segs[i - 1].ds_len); 2078 } 2079 2080 ring->queued++; 2081 2082 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 2083 data->map->dm_mapsize, 2084 BUS_DMASYNC_PREWRITE); 2085 bus_dmamap_sync(sc->sc_dmat, ring->cmd_dma.map, 0, 2086 ring->cmd_dma.size, 2087 BUS_DMASYNC_PREWRITE); 2088 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, 2089 ring->desc_dma.size, 2090 BUS_DMASYNC_PREWRITE); 2091 2092 /* kick ring */ 2093 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT; 2094 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2095 2096 return 0; 2097 } 2098 2099 static void 2100 wpi_start(struct ifnet *ifp) 2101 { 2102 struct wpi_softc *sc = ifp->if_softc; 2103 struct ieee80211com *ic = &sc->sc_ic; 2104 struct ieee80211_node *ni; 2105 struct ether_header *eh; 2106 struct mbuf *m0; 2107 int ac; 2108 2109 /* 2110 * net80211 may still try to send management frames even if the 2111 * IFF_RUNNING flag is not set... 2112 */ 2113 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 2114 return; 2115 2116 for (;;) { 2117 IF_DEQUEUE(&ic->ic_mgtq, m0); 2118 if (m0 != NULL) { 2119 2120 ni = M_GETCTX(m0, struct ieee80211_node *); 2121 M_CLEARCTX(m0); 2122 2123 /* management frames go into ring 0 */ 2124 if (sc->txq[0].queued > sc->txq[0].count - 8) { 2125 if_statinc(ifp, if_oerrors); 2126 continue; 2127 } 2128 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 2129 if (wpi_tx_data(sc, m0, ni, 0) != 0) { 2130 if_statinc(ifp, if_oerrors); 2131 break; 2132 } 2133 } else { 2134 if (ic->ic_state != IEEE80211_S_RUN) 2135 break; 2136 IFQ_POLL(&ifp->if_snd, m0); 2137 if (m0 == NULL) 2138 break; 2139 2140 if (m0->m_len < sizeof (*eh) && 2141 (m0 = m_pullup(m0, sizeof (*eh))) == NULL) { 2142 if_statinc(ifp, if_oerrors); 2143 continue; 2144 } 2145 eh = mtod(m0, struct ether_header *); 2146 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 2147 if (ni == NULL) { 2148 m_freem(m0); 2149 if_statinc(ifp, if_oerrors); 2150 continue; 2151 } 2152 2153 /* classify mbuf so we can find which tx ring to use */ 2154 if (ieee80211_classify(ic, m0, ni) != 0) { 2155 m_freem(m0); 2156 ieee80211_free_node(ni); 2157 if_statinc(ifp, if_oerrors); 2158 continue; 2159 } 2160 2161 /* no QoS encapsulation for EAPOL frames */ 2162 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 2163 M_WME_GETAC(m0) : WME_AC_BE; 2164 2165 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 2166 /* there is no place left in this ring */ 2167 ifp->if_flags |= IFF_OACTIVE; 2168 break; 2169 } 2170 IFQ_DEQUEUE(&ifp->if_snd, m0); 2171 bpf_mtap(ifp, m0, BPF_D_OUT); 2172 m0 = ieee80211_encap(ic, m0, ni); 2173 if (m0 == NULL) { 2174 ieee80211_free_node(ni); 2175 if_statinc(ifp, if_oerrors); 2176 continue; 2177 } 2178 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 2179 if (wpi_tx_data(sc, m0, ni, ac) != 0) { 2180 ieee80211_free_node(ni); 2181 if_statinc(ifp, if_oerrors); 2182 break; 2183 } 2184 } 2185 2186 sc->sc_tx_timer = 5; 2187 ifp->if_timer = 1; 2188 } 2189 } 2190 2191 static void 2192 wpi_watchdog(struct ifnet *ifp) 2193 { 2194 struct wpi_softc *sc = ifp->if_softc; 2195 2196 ifp->if_timer = 0; 2197 2198 if (sc->sc_tx_timer > 0) { 2199 if (--sc->sc_tx_timer == 0) { 2200 aprint_error_dev(sc->sc_dev, "device timeout\n"); 2201 ifp->if_flags &= ~IFF_UP; 2202 wpi_stop_intr(ifp, 1); 2203 if_statinc(ifp, if_oerrors); 2204 return; 2205 } 2206 ifp->if_timer = 1; 2207 } 2208 2209 ieee80211_watchdog(&sc->sc_ic); 2210 } 2211 2212 static int 2213 wpi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 2214 { 2215 #define IS_RUNNING(ifp) \ 2216 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 2217 2218 struct wpi_softc *sc = ifp->if_softc; 2219 struct ieee80211com *ic = &sc->sc_ic; 2220 int s, error = 0; 2221 2222 s = splnet(); 2223 2224 switch (cmd) { 2225 case SIOCSIFFLAGS: 2226 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 2227 break; 2228 if (ifp->if_flags & IFF_UP) { 2229 if (!(ifp->if_flags & IFF_RUNNING)) 2230 wpi_init(ifp); 2231 } else { 2232 if (ifp->if_flags & IFF_RUNNING) 2233 wpi_stop(ifp, 1); 2234 } 2235 break; 2236 2237 case SIOCADDMULTI: 2238 case SIOCDELMULTI: 2239 /* XXX no h/w multicast filter? --dyoung */ 2240 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 2241 /* setup multicast filter, etc */ 2242 error = 0; 2243 } 2244 break; 2245 2246 default: 2247 error = ieee80211_ioctl(ic, cmd, data); 2248 } 2249 2250 if (error == ENETRESET) { 2251 if (IS_RUNNING(ifp) && 2252 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 2253 wpi_init(ifp); 2254 error = 0; 2255 } 2256 2257 splx(s); 2258 return error; 2259 2260 #undef IS_RUNNING 2261 } 2262 2263 /* 2264 * Extract various information from EEPROM. 2265 */ 2266 static void 2267 wpi_read_eeprom(struct wpi_softc *sc) 2268 { 2269 struct ieee80211com *ic = &sc->sc_ic; 2270 char domain[4]; 2271 int i; 2272 2273 wpi_read_prom_data(sc, WPI_EEPROM_CAPABILITIES, &sc->cap, 1); 2274 wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev, 2); 2275 wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1); 2276 2277 DPRINTF(("cap=%x rev=%x type=%x\n", sc->cap, le16toh(sc->rev), 2278 sc->type)); 2279 2280 /* read and print regulatory domain */ 2281 wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, domain, 4); 2282 aprint_normal_dev(sc->sc_dev, "%.4s", domain); 2283 2284 /* read and print MAC address */ 2285 wpi_read_prom_data(sc, WPI_EEPROM_MAC, ic->ic_myaddr, 6); 2286 aprint_normal(", address %s\n", ether_sprintf(ic->ic_myaddr)); 2287 2288 /* read the list of authorized channels */ 2289 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++) 2290 wpi_read_eeprom_channels(sc, i); 2291 2292 /* read the list of power groups */ 2293 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++) 2294 wpi_read_eeprom_group(sc, i); 2295 } 2296 2297 static void 2298 wpi_read_eeprom_channels(struct wpi_softc *sc, int n) 2299 { 2300 struct ieee80211com *ic = &sc->sc_ic; 2301 const struct wpi_chan_band *band = &wpi_bands[n]; 2302 struct wpi_eeprom_chan channels[WPI_MAX_CHAN_PER_BAND]; 2303 int chan, i; 2304 2305 wpi_read_prom_data(sc, band->addr, channels, 2306 band->nchan * sizeof (struct wpi_eeprom_chan)); 2307 2308 for (i = 0; i < band->nchan; i++) { 2309 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) 2310 continue; 2311 2312 chan = band->chan[i]; 2313 2314 if (n == 0) { /* 2GHz band */ 2315 ic->ic_channels[chan].ic_freq = 2316 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 2317 ic->ic_channels[chan].ic_flags = 2318 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 2319 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 2320 2321 } else { /* 5GHz band */ 2322 /* 2323 * Some 3945ABG adapters support channels 7, 8, 11 2324 * and 12 in the 2GHz *and* 5GHz bands. 2325 * Because of limitations in our net80211(9) stack, 2326 * we can't support these channels in 5GHz band. 2327 */ 2328 if (chan <= 14) 2329 continue; 2330 2331 ic->ic_channels[chan].ic_freq = 2332 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_5GHZ); 2333 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_A; 2334 } 2335 2336 /* is active scan allowed on this channel? */ 2337 if (!(channels[i].flags & WPI_EEPROM_CHAN_ACTIVE)) { 2338 ic->ic_channels[chan].ic_flags |= 2339 IEEE80211_CHAN_PASSIVE; 2340 } 2341 2342 /* save maximum allowed power for this channel */ 2343 sc->maxpwr[chan] = channels[i].maxpwr; 2344 2345 DPRINTF(("adding chan %d flags=0x%x maxpwr=%d\n", 2346 chan, channels[i].flags, sc->maxpwr[chan])); 2347 } 2348 } 2349 2350 static void 2351 wpi_read_eeprom_group(struct wpi_softc *sc, int n) 2352 { 2353 struct wpi_power_group *group = &sc->groups[n]; 2354 struct wpi_eeprom_group rgroup; 2355 int i; 2356 2357 wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, &rgroup, 2358 sizeof rgroup); 2359 2360 /* save power group information */ 2361 group->chan = rgroup.chan; 2362 group->maxpwr = rgroup.maxpwr; 2363 /* temperature at which the samples were taken */ 2364 group->temp = (int16_t)le16toh(rgroup.temp); 2365 2366 DPRINTF(("power group %d: chan=%d maxpwr=%d temp=%d\n", n, 2367 group->chan, group->maxpwr, group->temp)); 2368 2369 for (i = 0; i < WPI_SAMPLES_COUNT; i++) { 2370 group->samples[i].index = rgroup.samples[i].index; 2371 group->samples[i].power = rgroup.samples[i].power; 2372 2373 DPRINTF(("\tsample %d: index=%d power=%d\n", i, 2374 group->samples[i].index, group->samples[i].power)); 2375 } 2376 } 2377 2378 /* 2379 * Send a command to the firmware. 2380 */ 2381 static int 2382 wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async) 2383 { 2384 struct wpi_tx_ring *ring = &sc->cmdq; 2385 struct wpi_tx_desc *desc; 2386 struct wpi_tx_cmd *cmd; 2387 struct wpi_dma_info *dma; 2388 2389 KASSERT(size <= sizeof cmd->data); 2390 2391 desc = &ring->desc[ring->cur]; 2392 cmd = &ring->cmd[ring->cur]; 2393 2394 cmd->code = code; 2395 cmd->flags = 0; 2396 cmd->qid = ring->qid; 2397 cmd->idx = ring->cur; 2398 memcpy(cmd->data, buf, size); 2399 2400 dma = &ring->cmd_dma; 2401 bus_dmamap_sync(dma->tag, dma->map, 0, dma->size, BUS_DMASYNC_PREWRITE); 2402 2403 desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24); 2404 desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 2405 ring->cur * sizeof (struct wpi_tx_cmd)); 2406 desc->segs[0].len = htole32(4 + size); 2407 2408 dma = &ring->desc_dma; 2409 bus_dmamap_sync(dma->tag, dma->map, 0, dma->size, BUS_DMASYNC_PREWRITE); 2410 2411 /* kick cmd ring */ 2412 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2413 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2414 2415 return async ? 0 : tsleep(cmd, PCATCH, "wpicmd", hz); 2416 } 2417 2418 static int 2419 wpi_wme_update(struct ieee80211com *ic) 2420 { 2421 #define WPI_EXP2(v) htole16((1 << (v)) - 1) 2422 #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 2423 struct wpi_softc *sc = ic->ic_ifp->if_softc; 2424 const struct wmeParams *wmep; 2425 struct wpi_wme_setup wme; 2426 int ac; 2427 2428 /* don't override default WME values if WME is not actually enabled */ 2429 if (!(ic->ic_flags & IEEE80211_F_WME)) 2430 return 0; 2431 2432 wme.flags = 0; 2433 for (ac = 0; ac < WME_NUM_AC; ac++) { 2434 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 2435 wme.ac[ac].aifsn = wmep->wmep_aifsn; 2436 wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin); 2437 wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax); 2438 wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit); 2439 2440 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d " 2441 "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin, 2442 wme.ac[ac].cwmax, wme.ac[ac].txop)); 2443 } 2444 2445 return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1); 2446 #undef WPI_USEC 2447 #undef WPI_EXP2 2448 } 2449 2450 /* 2451 * Configure h/w multi-rate retries. 2452 */ 2453 static int 2454 wpi_mrr_setup(struct wpi_softc *sc) 2455 { 2456 struct ieee80211com *ic = &sc->sc_ic; 2457 struct wpi_mrr_setup mrr; 2458 int i, error; 2459 2460 /* CCK rates (not used with 802.11a) */ 2461 for (i = WPI_CCK1; i <= WPI_CCK11; i++) { 2462 mrr.rates[i].flags = 0; 2463 mrr.rates[i].plcp = wpi_ridx_to_plcp[i]; 2464 /* fallback to the immediate lower CCK rate (if any) */ 2465 mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1; 2466 /* try one time at this rate before falling back to "next" */ 2467 mrr.rates[i].ntries = 1; 2468 } 2469 2470 /* OFDM rates (not used with 802.11b) */ 2471 for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) { 2472 mrr.rates[i].flags = 0; 2473 mrr.rates[i].plcp = wpi_ridx_to_plcp[i]; 2474 /* fallback to the immediate lower rate (if any) */ 2475 /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */ 2476 mrr.rates[i].next = (i == WPI_OFDM6) ? 2477 ((ic->ic_curmode == IEEE80211_MODE_11A) ? 2478 WPI_OFDM6 : WPI_CCK2) : 2479 i - 1; 2480 /* try one time at this rate before falling back to "next" */ 2481 mrr.rates[i].ntries = 1; 2482 } 2483 2484 /* setup MRR for control frames */ 2485 mrr.which = htole32(WPI_MRR_CTL); 2486 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); 2487 if (error != 0) { 2488 aprint_error_dev(sc->sc_dev, 2489 "could not setup MRR for control frames\n"); 2490 return error; 2491 } 2492 2493 /* setup MRR for data frames */ 2494 mrr.which = htole32(WPI_MRR_DATA); 2495 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); 2496 if (error != 0) { 2497 aprint_error_dev(sc->sc_dev, 2498 "could not setup MRR for data frames\n"); 2499 return error; 2500 } 2501 2502 return 0; 2503 } 2504 2505 static void 2506 wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on) 2507 { 2508 struct wpi_cmd_led led; 2509 2510 led.which = which; 2511 led.unit = htole32(100000); /* on/off in unit of 100ms */ 2512 led.off = off; 2513 led.on = on; 2514 2515 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1); 2516 } 2517 2518 static void 2519 wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni) 2520 { 2521 struct wpi_cmd_tsf tsf; 2522 uint64_t val, mod; 2523 2524 memset(&tsf, 0, sizeof tsf); 2525 memcpy(&tsf.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 2526 tsf.bintval = htole16(ni->ni_intval); 2527 tsf.lintval = htole16(10); 2528 2529 /* compute remaining time until next beacon */ 2530 val = (uint64_t)ni->ni_intval * 1024; /* msecs -> usecs */ 2531 mod = le64toh(tsf.tstamp) % val; 2532 tsf.binitval = htole32((uint32_t)(val - mod)); 2533 2534 DPRINTF(("TSF bintval=%u tstamp=%" PRIu64 ", init=%u\n", 2535 ni->ni_intval, le64toh(tsf.tstamp), (uint32_t)(val - mod))); 2536 2537 if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0) 2538 aprint_error_dev(sc->sc_dev, "could not enable TSF\n"); 2539 } 2540 2541 /* 2542 * Update Tx power to match what is defined for channel `c'. 2543 */ 2544 static int 2545 wpi_set_txpower(struct wpi_softc *sc, struct ieee80211_channel *c, int async) 2546 { 2547 struct ieee80211com *ic = &sc->sc_ic; 2548 struct wpi_power_group *group; 2549 struct wpi_cmd_txpower txpower; 2550 u_int chan; 2551 int i; 2552 2553 /* get channel number */ 2554 chan = ieee80211_chan2ieee(ic, c); 2555 2556 /* find the power group to which this channel belongs */ 2557 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2558 for (group = &sc->groups[1]; group < &sc->groups[4]; group++) 2559 if (chan <= group->chan) 2560 break; 2561 } else 2562 group = &sc->groups[0]; 2563 2564 memset(&txpower, 0, sizeof txpower); 2565 txpower.band = IEEE80211_IS_CHAN_5GHZ(c) ? 0 : 1; 2566 txpower.chan = htole16(chan); 2567 2568 /* set Tx power for all OFDM and CCK rates */ 2569 for (i = 0; i <= 11 ; i++) { 2570 /* retrieve Tx power for this channel/rate combination */ 2571 int idx = wpi_get_power_index(sc, group, c, 2572 wpi_ridx_to_rate[i]); 2573 2574 txpower.rates[i].plcp = wpi_ridx_to_plcp[i]; 2575 2576 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2577 txpower.rates[i].rf_gain = wpi_rf_gain_5ghz[idx]; 2578 txpower.rates[i].dsp_gain = wpi_dsp_gain_5ghz[idx]; 2579 } else { 2580 txpower.rates[i].rf_gain = wpi_rf_gain_2ghz[idx]; 2581 txpower.rates[i].dsp_gain = wpi_dsp_gain_2ghz[idx]; 2582 } 2583 DPRINTF(("chan %d/rate %d: power index %d\n", chan, 2584 wpi_ridx_to_rate[i], idx)); 2585 } 2586 2587 return wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, async); 2588 } 2589 2590 /* 2591 * Determine Tx power index for a given channel/rate combination. 2592 * This takes into account the regulatory information from EEPROM and the 2593 * current temperature. 2594 */ 2595 static int 2596 wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group, 2597 struct ieee80211_channel *c, int rate) 2598 { 2599 /* fixed-point arithmetic division using a n-bit fractional part */ 2600 #define fdivround(a, b, n) \ 2601 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 2602 2603 /* linear interpolation */ 2604 #define interpolate(x, x1, y1, x2, y2, n) \ 2605 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 2606 2607 struct ieee80211com *ic = &sc->sc_ic; 2608 struct wpi_power_sample *sample; 2609 int pwr, idx; 2610 u_int chan; 2611 2612 /* get channel number */ 2613 chan = ieee80211_chan2ieee(ic, c); 2614 2615 /* default power is group's maximum power - 3dB */ 2616 pwr = group->maxpwr / 2; 2617 2618 /* decrease power for highest OFDM rates to reduce distortion */ 2619 switch (rate) { 2620 case 72: /* 36Mb/s */ 2621 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 0 : 5; 2622 break; 2623 case 96: /* 48Mb/s */ 2624 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 7 : 10; 2625 break; 2626 case 108: /* 54Mb/s */ 2627 pwr -= IEEE80211_IS_CHAN_2GHZ(c) ? 9 : 12; 2628 break; 2629 } 2630 2631 /* never exceed channel's maximum allowed Tx power */ 2632 pwr = uimin(pwr, sc->maxpwr[chan]); 2633 2634 /* retrieve power index into gain tables from samples */ 2635 for (sample = group->samples; sample < &group->samples[3]; sample++) 2636 if (pwr > sample[1].power) 2637 break; 2638 /* fixed-point linear interpolation using a 19-bit fractional part */ 2639 idx = interpolate(pwr, sample[0].power, sample[0].index, 2640 sample[1].power, sample[1].index, 19); 2641 2642 /*- 2643 * Adjust power index based on current temperature: 2644 * - if cooler than factory-calibrated: decrease output power 2645 * - if warmer than factory-calibrated: increase output power 2646 */ 2647 idx -= (sc->temp - group->temp) * 11 / 100; 2648 2649 /* decrease power for CCK rates (-5dB) */ 2650 if (!WPI_RATE_IS_OFDM(rate)) 2651 idx += 10; 2652 2653 /* keep power index in a valid range */ 2654 if (idx < 0) 2655 return 0; 2656 if (idx > WPI_MAX_PWR_INDEX) 2657 return WPI_MAX_PWR_INDEX; 2658 return idx; 2659 2660 #undef interpolate 2661 #undef fdivround 2662 } 2663 2664 /* 2665 * Build a beacon frame that the firmware will broadcast periodically in 2666 * IBSS or HostAP modes. 2667 */ 2668 static int 2669 wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni) 2670 { 2671 struct ieee80211com *ic = &sc->sc_ic; 2672 struct wpi_tx_ring *ring = &sc->cmdq; 2673 struct wpi_tx_desc *desc; 2674 struct wpi_tx_data *data; 2675 struct wpi_tx_cmd *cmd; 2676 struct wpi_cmd_beacon *bcn; 2677 struct ieee80211_beacon_offsets bo; 2678 struct mbuf *m0; 2679 int error; 2680 2681 desc = &ring->desc[ring->cur]; 2682 data = &ring->data[ring->cur]; 2683 2684 m0 = ieee80211_beacon_alloc(ic, ni, &bo); 2685 if (m0 == NULL) { 2686 aprint_error_dev(sc->sc_dev, 2687 "could not allocate beacon frame\n"); 2688 return ENOMEM; 2689 } 2690 2691 cmd = &ring->cmd[ring->cur]; 2692 cmd->code = WPI_CMD_SET_BEACON; 2693 cmd->flags = 0; 2694 cmd->qid = ring->qid; 2695 cmd->idx = ring->cur; 2696 2697 bcn = (struct wpi_cmd_beacon *)cmd->data; 2698 memset(bcn, 0, sizeof (struct wpi_cmd_beacon)); 2699 bcn->id = WPI_ID_BROADCAST; 2700 bcn->ofdm_mask = 0xff; 2701 bcn->cck_mask = 0x0f; 2702 bcn->lifetime = htole32(WPI_LIFETIME_INFINITE); 2703 bcn->len = htole16(m0->m_pkthdr.len); 2704 bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? 2705 wpi_plcp_signal(12) : wpi_plcp_signal(2); 2706 bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP); 2707 2708 /* save and trim IEEE802.11 header */ 2709 m_copydata(m0, 0, sizeof (struct ieee80211_frame), (void *)&bcn->wh); 2710 m_adj(m0, sizeof (struct ieee80211_frame)); 2711 2712 /* assume beacon frame is contiguous */ 2713 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 2714 BUS_DMA_READ | BUS_DMA_NOWAIT); 2715 if (error != 0) { 2716 aprint_error_dev(sc->sc_dev, "could not map beacon\n"); 2717 m_freem(m0); 2718 return error; 2719 } 2720 2721 data->m = m0; 2722 2723 /* first scatter/gather segment is used by the beacon command */ 2724 desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24); 2725 desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 2726 ring->cur * sizeof (struct wpi_tx_cmd)); 2727 desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon)); 2728 desc->segs[1].addr = htole32(data->map->dm_segs[0].ds_addr); 2729 desc->segs[1].len = htole32(data->map->dm_segs[0].ds_len); 2730 2731 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, 2732 ring->desc_dma.map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2733 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 2734 BUS_DMASYNC_PREWRITE); 2735 2736 /* kick cmd ring */ 2737 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2738 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2739 2740 return 0; 2741 } 2742 2743 static int 2744 wpi_auth(struct wpi_softc *sc) 2745 { 2746 struct ieee80211com *ic = &sc->sc_ic; 2747 struct ieee80211_node *ni = ic->ic_bss; 2748 struct wpi_node_info node; 2749 int error; 2750 2751 /* update adapter's configuration */ 2752 IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid); 2753 sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2754 sc->config.flags = htole32(WPI_CONFIG_TSF); 2755 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) { 2756 sc->config.flags |= htole32(WPI_CONFIG_AUTO | 2757 WPI_CONFIG_24GHZ); 2758 } 2759 switch (ic->ic_curmode) { 2760 case IEEE80211_MODE_11A: 2761 sc->config.cck_mask = 0; 2762 sc->config.ofdm_mask = 0x15; 2763 break; 2764 case IEEE80211_MODE_11B: 2765 sc->config.cck_mask = 0x03; 2766 sc->config.ofdm_mask = 0; 2767 break; 2768 default: /* assume 802.11b/g */ 2769 sc->config.cck_mask = 0x0f; 2770 sc->config.ofdm_mask = 0x15; 2771 } 2772 DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan, 2773 sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask)); 2774 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 2775 sizeof (struct wpi_config), 1); 2776 if (error != 0) { 2777 aprint_error_dev(sc->sc_dev, "could not configure\n"); 2778 return error; 2779 } 2780 2781 /* configuration has changed, set Tx power accordingly */ 2782 if ((error = wpi_set_txpower(sc, ni->ni_chan, 1)) != 0) { 2783 aprint_error_dev(sc->sc_dev, "could not set Tx power\n"); 2784 return error; 2785 } 2786 2787 /* add default node */ 2788 memset(&node, 0, sizeof node); 2789 IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid); 2790 node.id = WPI_ID_BSS; 2791 node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? 2792 wpi_plcp_signal(12) : wpi_plcp_signal(2); 2793 node.action = htole32(WPI_ACTION_SET_RATE); 2794 node.antenna = WPI_ANTENNA_BOTH; 2795 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); 2796 if (error != 0) { 2797 aprint_error_dev(sc->sc_dev, "could not add BSS node\n"); 2798 return error; 2799 } 2800 2801 return 0; 2802 } 2803 2804 /* 2805 * Send a scan request to the firmware. Since this command is huge, we map it 2806 * into a mbuf instead of using the pre-allocated set of commands. 2807 */ 2808 static int 2809 wpi_scan(struct wpi_softc *sc) 2810 { 2811 struct ieee80211com *ic = &sc->sc_ic; 2812 struct wpi_tx_ring *ring = &sc->cmdq; 2813 struct wpi_tx_desc *desc; 2814 struct wpi_tx_data *data; 2815 struct wpi_tx_cmd *cmd; 2816 struct wpi_scan_hdr *hdr; 2817 struct wpi_scan_chan *chan; 2818 struct ieee80211_frame *wh; 2819 struct ieee80211_rateset *rs; 2820 struct ieee80211_channel *c; 2821 uint8_t *frm; 2822 int pktlen, error, nrates; 2823 2824 if (ic->ic_curchan == NULL) 2825 return EIO; 2826 2827 desc = &ring->desc[ring->cur]; 2828 data = &ring->data[ring->cur]; 2829 2830 MGETHDR(data->m, M_DONTWAIT, MT_DATA); 2831 if (data->m == NULL) { 2832 aprint_error_dev(sc->sc_dev, 2833 "could not allocate mbuf for scan command\n"); 2834 return ENOMEM; 2835 } 2836 MCLGET(data->m, M_DONTWAIT); 2837 if (!(data->m->m_flags & M_EXT)) { 2838 m_freem(data->m); 2839 data->m = NULL; 2840 aprint_error_dev(sc->sc_dev, 2841 "could not allocate mbuf for scan command\n"); 2842 return ENOMEM; 2843 } 2844 2845 cmd = mtod(data->m, struct wpi_tx_cmd *); 2846 cmd->code = WPI_CMD_SCAN; 2847 cmd->flags = 0; 2848 cmd->qid = ring->qid; 2849 cmd->idx = ring->cur; 2850 2851 hdr = (struct wpi_scan_hdr *)cmd->data; 2852 memset(hdr, 0, sizeof (struct wpi_scan_hdr)); 2853 hdr->cmd.flags = htole32(WPI_TX_AUTO_SEQ); 2854 hdr->cmd.id = WPI_ID_BROADCAST; 2855 hdr->cmd.lifetime = htole32(WPI_LIFETIME_INFINITE); 2856 /* 2857 * Move to the next channel if no packets are received within 5 msecs 2858 * after sending the probe request (this helps to reduce the duration 2859 * of active scans). 2860 */ 2861 hdr->quiet = htole16(5); /* timeout in milliseconds */ 2862 hdr->plcp_threshold = htole16(1); /* min # of packets */ 2863 2864 if (ic->ic_curchan->ic_flags & IEEE80211_CHAN_5GHZ) { 2865 hdr->crc_threshold = htole16(1); 2866 /* send probe requests at 6Mbps */ 2867 hdr->cmd.rate = wpi_plcp_signal(12); 2868 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; 2869 } else { 2870 hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO); 2871 /* send probe requests at 1Mbps */ 2872 hdr->cmd.rate = wpi_plcp_signal(2); 2873 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; 2874 } 2875 2876 /* for directed scans, firmware inserts the essid IE itself */ 2877 if (ic->ic_des_esslen != 0) { 2878 hdr->essid[0].id = IEEE80211_ELEMID_SSID; 2879 hdr->essid[0].len = ic->ic_des_esslen; 2880 memcpy(hdr->essid[0].data, ic->ic_des_essid, ic->ic_des_esslen); 2881 } 2882 2883 /* 2884 * Build a probe request frame. Most of the following code is a 2885 * copy & paste of what is done in net80211. 2886 */ 2887 wh = (struct ieee80211_frame *)(hdr + 1); 2888 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2889 IEEE80211_FC0_SUBTYPE_PROBE_REQ; 2890 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2891 IEEE80211_ADDR_COPY(wh->i_addr1, etherbroadcastaddr); 2892 IEEE80211_ADDR_COPY(wh->i_addr2, ic->ic_myaddr); 2893 IEEE80211_ADDR_COPY(wh->i_addr3, etherbroadcastaddr); 2894 *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */ 2895 *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */ 2896 2897 frm = (uint8_t *)(wh + 1); 2898 2899 /* add empty essid IE (firmware generates it for directed scans) */ 2900 *frm++ = IEEE80211_ELEMID_SSID; 2901 *frm++ = 0; 2902 2903 /* add supported rates IE */ 2904 *frm++ = IEEE80211_ELEMID_RATES; 2905 nrates = rs->rs_nrates; 2906 if (nrates > IEEE80211_RATE_SIZE) 2907 nrates = IEEE80211_RATE_SIZE; 2908 *frm++ = nrates; 2909 memcpy(frm, rs->rs_rates, nrates); 2910 frm += nrates; 2911 2912 /* add supported xrates IE */ 2913 if (rs->rs_nrates > IEEE80211_RATE_SIZE) { 2914 nrates = rs->rs_nrates - IEEE80211_RATE_SIZE; 2915 *frm++ = IEEE80211_ELEMID_XRATES; 2916 *frm++ = nrates; 2917 memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates); 2918 frm += nrates; 2919 } 2920 2921 /* setup length of probe request */ 2922 hdr->cmd.len = htole16(frm - (uint8_t *)wh); 2923 2924 chan = (struct wpi_scan_chan *)frm; 2925 c = ic->ic_curchan; 2926 2927 chan->chan = ieee80211_chan2ieee(ic, c); 2928 chan->flags = 0; 2929 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) { 2930 chan->flags |= WPI_CHAN_ACTIVE; 2931 if (ic->ic_des_esslen != 0) 2932 chan->flags |= WPI_CHAN_DIRECT; 2933 } 2934 chan->dsp_gain = 0x6e; 2935 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2936 chan->rf_gain = 0x3b; 2937 chan->active = htole16(10); 2938 chan->passive = htole16(110); 2939 } else { 2940 chan->rf_gain = 0x28; 2941 chan->active = htole16(20); 2942 chan->passive = htole16(120); 2943 } 2944 hdr->nchan++; 2945 chan++; 2946 2947 frm += sizeof (struct wpi_scan_chan); 2948 2949 hdr->len = htole16(frm - (uint8_t *)hdr); 2950 pktlen = frm - (uint8_t *)cmd; 2951 2952 error = bus_dmamap_load(sc->sc_dmat, data->map, cmd, pktlen, NULL, 2953 BUS_DMA_NOWAIT); 2954 if (error != 0) { 2955 aprint_error_dev(sc->sc_dev, "could not map scan command\n"); 2956 m_freem(data->m); 2957 data->m = NULL; 2958 return error; 2959 } 2960 2961 desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24); 2962 desc->segs[0].addr = htole32(data->map->dm_segs[0].ds_addr); 2963 desc->segs[0].len = htole32(data->map->dm_segs[0].ds_len); 2964 2965 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, 2966 ring->desc_dma.map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2967 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 2968 BUS_DMASYNC_PREWRITE); 2969 2970 /* kick cmd ring */ 2971 ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2972 WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2973 2974 return 0; /* will be notified async. of failure/success */ 2975 } 2976 2977 static int 2978 wpi_config(struct wpi_softc *sc) 2979 { 2980 struct ieee80211com *ic = &sc->sc_ic; 2981 struct ifnet *ifp = ic->ic_ifp; 2982 struct wpi_power power; 2983 struct wpi_bluetooth bluetooth; 2984 struct wpi_node_info node; 2985 int error; 2986 2987 memset(&power, 0, sizeof power); 2988 power.flags = htole32(WPI_POWER_CAM | 0x8); 2989 error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0); 2990 if (error != 0) { 2991 aprint_error_dev(sc->sc_dev, "could not set power mode\n"); 2992 return error; 2993 } 2994 2995 /* configure bluetooth coexistence */ 2996 memset(&bluetooth, 0, sizeof bluetooth); 2997 bluetooth.flags = 3; 2998 bluetooth.lead = 0xaa; 2999 bluetooth.kill = 1; 3000 error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth, 3001 0); 3002 if (error != 0) { 3003 aprint_error_dev(sc->sc_dev, 3004 "could not configure bluetooth coexistence\n"); 3005 return error; 3006 } 3007 3008 /* configure adapter */ 3009 memset(&sc->config, 0, sizeof (struct wpi_config)); 3010 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 3011 IEEE80211_ADDR_COPY(sc->config.myaddr, ic->ic_myaddr); 3012 /* set default channel */ 3013 sc->config.chan = ieee80211_chan2ieee(ic, ic->ic_curchan); 3014 sc->config.flags = htole32(WPI_CONFIG_TSF); 3015 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 3016 sc->config.flags |= htole32(WPI_CONFIG_AUTO | 3017 WPI_CONFIG_24GHZ); 3018 } 3019 sc->config.filter = 0; 3020 switch (ic->ic_opmode) { 3021 case IEEE80211_M_STA: 3022 sc->config.mode = WPI_MODE_STA; 3023 sc->config.filter |= htole32(WPI_FILTER_MULTICAST); 3024 break; 3025 case IEEE80211_M_IBSS: 3026 case IEEE80211_M_AHDEMO: 3027 sc->config.mode = WPI_MODE_IBSS; 3028 break; 3029 case IEEE80211_M_HOSTAP: 3030 sc->config.mode = WPI_MODE_HOSTAP; 3031 break; 3032 case IEEE80211_M_MONITOR: 3033 sc->config.mode = WPI_MODE_MONITOR; 3034 sc->config.filter |= htole32(WPI_FILTER_MULTICAST | 3035 WPI_FILTER_CTL | WPI_FILTER_PROMISC); 3036 break; 3037 } 3038 sc->config.cck_mask = 0x0f; /* not yet negotiated */ 3039 sc->config.ofdm_mask = 0xff; /* not yet negotiated */ 3040 error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 3041 sizeof (struct wpi_config), 0); 3042 if (error != 0) { 3043 aprint_error_dev(sc->sc_dev, "configure command failed\n"); 3044 return error; 3045 } 3046 3047 /* configuration has changed, set Tx power accordingly */ 3048 if ((error = wpi_set_txpower(sc, ic->ic_curchan, 0)) != 0) { 3049 aprint_error_dev(sc->sc_dev, "could not set Tx power\n"); 3050 return error; 3051 } 3052 3053 /* add broadcast node */ 3054 memset(&node, 0, sizeof node); 3055 IEEE80211_ADDR_COPY(node.bssid, etherbroadcastaddr); 3056 node.id = WPI_ID_BROADCAST; 3057 node.rate = wpi_plcp_signal(2); 3058 node.action = htole32(WPI_ACTION_SET_RATE); 3059 node.antenna = WPI_ANTENNA_BOTH; 3060 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0); 3061 if (error != 0) { 3062 aprint_error_dev(sc->sc_dev, "could not add broadcast node\n"); 3063 return error; 3064 } 3065 3066 if ((error = wpi_mrr_setup(sc)) != 0) { 3067 aprint_error_dev(sc->sc_dev, "could not setup MRR\n"); 3068 return error; 3069 } 3070 3071 return 0; 3072 } 3073 3074 static void 3075 wpi_stop_master(struct wpi_softc *sc) 3076 { 3077 uint32_t tmp; 3078 int ntries; 3079 3080 tmp = WPI_READ(sc, WPI_RESET); 3081 WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER); 3082 3083 tmp = WPI_READ(sc, WPI_GPIO_CTL); 3084 if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP) 3085 return; /* already asleep */ 3086 3087 for (ntries = 0; ntries < 100; ntries++) { 3088 if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED) 3089 break; 3090 DELAY(10); 3091 } 3092 if (ntries == 100) { 3093 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 3094 } 3095 } 3096 3097 static int 3098 wpi_power_up(struct wpi_softc *sc) 3099 { 3100 uint32_t tmp; 3101 int ntries; 3102 3103 wpi_mem_lock(sc); 3104 tmp = wpi_mem_read(sc, WPI_MEM_POWER); 3105 wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000); 3106 wpi_mem_unlock(sc); 3107 3108 for (ntries = 0; ntries < 5000; ntries++) { 3109 if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED) 3110 break; 3111 DELAY(10); 3112 } 3113 if (ntries == 5000) { 3114 aprint_error_dev(sc->sc_dev, 3115 "timeout waiting for NIC to power up\n"); 3116 return ETIMEDOUT; 3117 } 3118 return 0; 3119 } 3120 3121 static int 3122 wpi_reset(struct wpi_softc *sc) 3123 { 3124 uint32_t tmp; 3125 int ntries; 3126 3127 /* clear any pending interrupts */ 3128 WPI_WRITE(sc, WPI_INTR, 0xffffffff); 3129 3130 tmp = WPI_READ(sc, WPI_PLL_CTL); 3131 WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT); 3132 3133 tmp = WPI_READ(sc, WPI_CHICKEN); 3134 WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS); 3135 3136 tmp = WPI_READ(sc, WPI_GPIO_CTL); 3137 WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT); 3138 3139 /* wait for clock stabilization */ 3140 for (ntries = 0; ntries < 1000; ntries++) { 3141 if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK) 3142 break; 3143 DELAY(10); 3144 } 3145 if (ntries == 1000) { 3146 aprint_error_dev(sc->sc_dev, 3147 "timeout waiting for clock stabilization\n"); 3148 return ETIMEDOUT; 3149 } 3150 3151 /* initialize EEPROM */ 3152 tmp = WPI_READ(sc, WPI_EEPROM_STATUS); 3153 if ((tmp & WPI_EEPROM_VERSION) == 0) { 3154 aprint_error_dev(sc->sc_dev, "EEPROM not found\n"); 3155 return EIO; 3156 } 3157 WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED); 3158 3159 return 0; 3160 } 3161 3162 static void 3163 wpi_hw_config(struct wpi_softc *sc) 3164 { 3165 uint32_t rev, hw; 3166 3167 /* voodoo from the reference driver */ 3168 hw = WPI_READ(sc, WPI_HWCONFIG); 3169 3170 rev = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_CLASS_REG); 3171 rev = PCI_REVISION(rev); 3172 if ((rev & 0xc0) == 0x40) 3173 hw |= WPI_HW_ALM_MB; 3174 else if (!(rev & 0x80)) 3175 hw |= WPI_HW_ALM_MM; 3176 3177 if (sc->cap == 0x80) 3178 hw |= WPI_HW_SKU_MRC; 3179 3180 hw &= ~WPI_HW_REV_D; 3181 if ((le16toh(sc->rev) & 0xf0) == 0xd0) 3182 hw |= WPI_HW_REV_D; 3183 3184 if (sc->type > 1) 3185 hw |= WPI_HW_TYPE_B; 3186 3187 DPRINTF(("setting h/w config %x\n", hw)); 3188 WPI_WRITE(sc, WPI_HWCONFIG, hw); 3189 } 3190 3191 static int 3192 wpi_init(struct ifnet *ifp) 3193 { 3194 struct wpi_softc *sc = ifp->if_softc; 3195 struct ieee80211com *ic = &sc->sc_ic; 3196 uint32_t tmp; 3197 int qid, ntries, error; 3198 3199 wpi_stop(ifp, 1); 3200 (void)wpi_reset(sc); 3201 3202 wpi_mem_lock(sc); 3203 wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00); 3204 DELAY(20); 3205 tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV); 3206 wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800); 3207 wpi_mem_unlock(sc); 3208 3209 (void)wpi_power_up(sc); 3210 wpi_hw_config(sc); 3211 3212 /* init Rx ring */ 3213 wpi_mem_lock(sc); 3214 WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr); 3215 WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr + 3216 offsetof(struct wpi_shared, next)); 3217 WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7); 3218 WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010); 3219 wpi_mem_unlock(sc); 3220 3221 /* init Tx rings */ 3222 wpi_mem_lock(sc); 3223 wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */ 3224 wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */ 3225 wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */ 3226 wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000); 3227 wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002); 3228 wpi_mem_write(sc, WPI_MEM_MAGIC4, 4); 3229 wpi_mem_write(sc, WPI_MEM_MAGIC5, 5); 3230 3231 WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr); 3232 WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5); 3233 3234 for (qid = 0; qid < 6; qid++) { 3235 WPI_WRITE(sc, WPI_TX_CTL(qid), 0); 3236 WPI_WRITE(sc, WPI_TX_BASE(qid), 0); 3237 WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008); 3238 } 3239 wpi_mem_unlock(sc); 3240 3241 /* clear "radio off" and "disable command" bits (reversed logic) */ 3242 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 3243 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD); 3244 3245 /* clear any pending interrupts */ 3246 WPI_WRITE(sc, WPI_INTR, 0xffffffff); 3247 /* enable interrupts */ 3248 WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); 3249 3250 /* not sure why/if this is necessary... */ 3251 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 3252 WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 3253 3254 if ((error = wpi_load_firmware(sc)) != 0) 3255 /* wpi_load_firmware prints error messages for us. */ 3256 goto fail1; 3257 3258 /* Check the status of the radio switch */ 3259 mutex_enter(&sc->sc_rsw_mtx); 3260 if (wpi_getrfkill(sc)) { 3261 mutex_exit(&sc->sc_rsw_mtx); 3262 aprint_error_dev(sc->sc_dev, 3263 "radio is disabled by hardware switch\n"); 3264 ifp->if_flags &= ~IFF_UP; 3265 error = EBUSY; 3266 goto fail1; 3267 } 3268 sc->sc_rsw_suspend = false; 3269 cv_broadcast(&sc->sc_rsw_cv); 3270 while (sc->sc_rsw_suspend) 3271 cv_wait(&sc->sc_rsw_cv, &sc->sc_rsw_mtx); 3272 mutex_exit(&sc->sc_rsw_mtx); 3273 3274 /* wait for thermal sensors to calibrate */ 3275 for (ntries = 0; ntries < 1000; ntries++) { 3276 if ((sc->temp = (int)WPI_READ(sc, WPI_TEMPERATURE)) != 0) 3277 break; 3278 DELAY(10); 3279 } 3280 if (ntries == 1000) { 3281 aprint_error_dev(sc->sc_dev, 3282 "timeout waiting for thermal sensors calibration\n"); 3283 error = ETIMEDOUT; 3284 goto fail1; 3285 } 3286 DPRINTF(("temperature %d\n", sc->temp)); 3287 3288 if ((error = wpi_config(sc)) != 0) { 3289 aprint_error_dev(sc->sc_dev, "could not configure device\n"); 3290 goto fail1; 3291 } 3292 3293 ifp->if_flags &= ~IFF_OACTIVE; 3294 ifp->if_flags |= IFF_RUNNING; 3295 3296 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 3297 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 3298 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 3299 } 3300 else 3301 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 3302 3303 return 0; 3304 3305 fail1: wpi_stop(ifp, 1); 3306 return error; 3307 } 3308 3309 static void 3310 wpi_stop1(struct ifnet *ifp, int disable, bool fromintr) 3311 { 3312 struct wpi_softc *sc = ifp->if_softc; 3313 struct ieee80211com *ic = &sc->sc_ic; 3314 uint32_t tmp; 3315 int ac; 3316 3317 ifp->if_timer = sc->sc_tx_timer = 0; 3318 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 3319 3320 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 3321 3322 if (fromintr) { 3323 sc->sc_rsw_suspend = true; // XXX: without mutex or wait 3324 } else { 3325 wpi_rsw_suspend(sc); 3326 } 3327 3328 /* disable interrupts */ 3329 WPI_WRITE(sc, WPI_MASK, 0); 3330 WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK); 3331 WPI_WRITE(sc, WPI_INTR_STATUS, 0xff); 3332 WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000); 3333 3334 wpi_mem_lock(sc); 3335 wpi_mem_write(sc, WPI_MEM_MODE, 0); 3336 wpi_mem_unlock(sc); 3337 3338 /* reset all Tx rings */ 3339 for (ac = 0; ac < 4; ac++) 3340 wpi_reset_tx_ring(sc, &sc->txq[ac]); 3341 wpi_reset_tx_ring(sc, &sc->cmdq); 3342 3343 /* reset Rx ring */ 3344 wpi_reset_rx_ring(sc, &sc->rxq); 3345 3346 wpi_mem_lock(sc); 3347 wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200); 3348 wpi_mem_unlock(sc); 3349 3350 DELAY(5); 3351 3352 wpi_stop_master(sc); 3353 3354 tmp = WPI_READ(sc, WPI_RESET); 3355 WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET); 3356 } 3357 3358 static void 3359 wpi_stop(struct ifnet *ifp, int disable) 3360 { 3361 wpi_stop1(ifp, disable, false); 3362 } 3363 3364 static void 3365 wpi_stop_intr(struct ifnet *ifp, int disable) 3366 { 3367 wpi_stop1(ifp, disable, true); 3368 } 3369 3370 static bool 3371 wpi_resume(device_t dv, const pmf_qual_t *qual) 3372 { 3373 struct wpi_softc *sc = device_private(dv); 3374 3375 (void)wpi_reset(sc); 3376 3377 return true; 3378 } 3379 3380 /* 3381 * Return whether or not the radio is enabled in hardware 3382 * (i.e. the rfkill switch is "off"). 3383 */ 3384 static int 3385 wpi_getrfkill(struct wpi_softc *sc) 3386 { 3387 uint32_t tmp; 3388 3389 wpi_mem_lock(sc); 3390 tmp = wpi_mem_read(sc, WPI_MEM_RFKILL); 3391 wpi_mem_unlock(sc); 3392 3393 KASSERT(mutex_owned(&sc->sc_rsw_mtx)); 3394 if (tmp & 0x01) { 3395 /* switch is on */ 3396 if (sc->sc_rsw_status != WPI_RSW_ON) { 3397 sc->sc_rsw_status = WPI_RSW_ON; 3398 sysmon_pswitch_event(&sc->sc_rsw, 3399 PSWITCH_EVENT_PRESSED); 3400 } 3401 } else { 3402 /* switch is off */ 3403 if (sc->sc_rsw_status != WPI_RSW_OFF) { 3404 sc->sc_rsw_status = WPI_RSW_OFF; 3405 sysmon_pswitch_event(&sc->sc_rsw, 3406 PSWITCH_EVENT_RELEASED); 3407 } 3408 } 3409 3410 return !(tmp & 0x01); 3411 } 3412 3413 static int 3414 wpi_sysctl_radio(SYSCTLFN_ARGS) 3415 { 3416 struct sysctlnode node; 3417 struct wpi_softc *sc; 3418 int val, error; 3419 3420 node = *rnode; 3421 sc = (struct wpi_softc *)node.sysctl_data; 3422 3423 mutex_enter(&sc->sc_rsw_mtx); 3424 val = !wpi_getrfkill(sc); 3425 mutex_exit(&sc->sc_rsw_mtx); 3426 3427 node.sysctl_data = &val; 3428 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 3429 3430 if (error || newp == NULL) 3431 return error; 3432 3433 return 0; 3434 } 3435 3436 static void 3437 wpi_sysctlattach(struct wpi_softc *sc) 3438 { 3439 int rc; 3440 const struct sysctlnode *rnode; 3441 const struct sysctlnode *cnode; 3442 3443 struct sysctllog **clog = &sc->sc_sysctllog; 3444 3445 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 3446 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 3447 SYSCTL_DESCR("wpi controls and statistics"), 3448 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 3449 goto err; 3450 3451 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 3452 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 3453 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 3454 wpi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 3455 goto err; 3456 3457 #ifdef WPI_DEBUG 3458 /* control debugging printfs */ 3459 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 3460 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 3461 "debug", SYSCTL_DESCR("Enable debugging output"), 3462 NULL, 0, &wpi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 3463 goto err; 3464 #endif 3465 3466 return; 3467 err: 3468 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 3469 } 3470 3471 static void 3472 wpi_rsw_suspend(struct wpi_softc *sc) 3473 { 3474 /* suspend rfkill test thread */ 3475 mutex_enter(&sc->sc_rsw_mtx); 3476 sc->sc_rsw_suspend = true; 3477 cv_broadcast(&sc->sc_rsw_cv); 3478 while (!sc->sc_rsw_suspended) 3479 cv_wait(&sc->sc_rsw_cv, &sc->sc_rsw_mtx); 3480 mutex_exit(&sc->sc_rsw_mtx); 3481 } 3482 3483 static void 3484 wpi_rsw_thread(void *arg) 3485 { 3486 struct wpi_softc *sc = (struct wpi_softc *)arg; 3487 3488 mutex_enter(&sc->sc_rsw_mtx); 3489 for (;;) { 3490 cv_timedwait(&sc->sc_rsw_cv, &sc->sc_rsw_mtx, hz); 3491 if (sc->sc_dying) { 3492 sc->sc_rsw_lwp = NULL; 3493 cv_broadcast(&sc->sc_rsw_cv); 3494 mutex_exit(&sc->sc_rsw_mtx); 3495 kthread_exit(0); 3496 } 3497 if (sc->sc_rsw_suspend) { 3498 sc->sc_rsw_suspended = true; 3499 cv_broadcast(&sc->sc_rsw_cv); 3500 while (sc->sc_rsw_suspend || sc->sc_dying) 3501 cv_wait(&sc->sc_rsw_cv, &sc->sc_rsw_mtx); 3502 sc->sc_rsw_suspended = false; 3503 cv_broadcast(&sc->sc_rsw_cv); 3504 } 3505 wpi_getrfkill(sc); 3506 } 3507 } 3508
Indexes created Sat Sep 27 14:09:57 GMT 2025