1 /* $NetBSD: if_iwi.c,v 1.98 2015/01/07 07:05:48 ozaki-r Exp $ */ 2 /* $OpenBSD: if_iwi.c,v 1.111 2010/11/15 19:11:57 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2004-2008 6 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 __KERNEL_RCSID(0, "$NetBSD: if_iwi.c,v 1.98 2015/01/07 07:05:48 ozaki-r Exp $"); 23 24 /*- 25 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 26 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 27 */ 28 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/sysctl.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/conf.h> 39 #include <sys/kauth.h> 40 #include <sys/proc.h> 41 #include <sys/cprng.h> 42 43 #include <sys/bus.h> 44 #include <machine/endian.h> 45 #include <sys/intr.h> 46 47 #include <dev/firmload.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 #include <net/bpf.h> 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/if_dl.h> 57 #include <net/if_ether.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_radiotap.h> 63 64 #include <netinet/in.h> 65 #include <netinet/in_systm.h> 66 #include <netinet/in_var.h> 67 #include <netinet/ip.h> 68 69 #include <dev/pci/if_iwireg.h> 70 #include <dev/pci/if_iwivar.h> 71 72 #ifdef IWI_DEBUG 73 #define DPRINTF(x) if (iwi_debug > 0) printf x 74 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 75 int iwi_debug = 4; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n, x) 79 #endif 80 81 /* Permit loading the Intel firmware */ 82 static int iwi_accept_eula; 83 84 static int iwi_match(device_t, cfdata_t, void *); 85 static void iwi_attach(device_t, device_t, void *); 86 static int iwi_detach(device_t, int); 87 88 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 89 int); 90 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 91 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 92 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 93 int, bus_size_t, bus_size_t); 94 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 95 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 96 static struct mbuf * 97 iwi_alloc_rx_buf(struct iwi_softc *sc); 98 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 99 int); 100 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 101 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 102 103 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 104 static void iwi_node_free(struct ieee80211_node *); 105 106 static int iwi_cvtrate(int); 107 static int iwi_media_change(struct ifnet *); 108 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 109 static int iwi_wme_update(struct ieee80211com *); 110 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 111 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 112 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 113 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 114 struct iwi_frame *); 115 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 116 static void iwi_cmd_intr(struct iwi_softc *); 117 static void iwi_rx_intr(struct iwi_softc *); 118 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 119 static int iwi_intr(void *); 120 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 121 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 122 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 123 int); 124 static void iwi_start(struct ifnet *); 125 static void iwi_watchdog(struct ifnet *); 126 127 static int iwi_alloc_unr(struct iwi_softc *); 128 static void iwi_free_unr(struct iwi_softc *, int); 129 130 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 131 132 static int iwi_ioctl(struct ifnet *, u_long, void *); 133 static void iwi_stop_master(struct iwi_softc *); 134 static int iwi_reset(struct iwi_softc *); 135 static int iwi_load_ucode(struct iwi_softc *, void *, int); 136 static int iwi_load_firmware(struct iwi_softc *, void *, int); 137 static int iwi_cache_firmware(struct iwi_softc *); 138 static void iwi_free_firmware(struct iwi_softc *); 139 static int iwi_config(struct iwi_softc *); 140 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 141 static int iwi_scan(struct iwi_softc *); 142 static int iwi_auth_and_assoc(struct iwi_softc *); 143 static int iwi_init(struct ifnet *); 144 static void iwi_stop(struct ifnet *, int); 145 static int iwi_getrfkill(struct iwi_softc *); 146 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 147 static void iwi_sysctlattach(struct iwi_softc *); 148 149 /* 150 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 151 */ 152 static const struct ieee80211_rateset iwi_rateset_11a = 153 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 154 155 static const struct ieee80211_rateset iwi_rateset_11b = 156 { 4, { 2, 4, 11, 22 } }; 157 158 static const struct ieee80211_rateset iwi_rateset_11g = 159 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 160 161 static inline uint8_t 162 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 163 { 164 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 165 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 166 } 167 168 static inline uint32_t 169 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 170 { 171 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 172 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 173 } 174 175 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 176 iwi_detach, NULL); 177 178 static int 179 iwi_match(device_t parent, cfdata_t match, void *aux) 180 { 181 struct pci_attach_args *pa = aux; 182 183 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 184 return 0; 185 186 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 187 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 190 return 1; 191 192 return 0; 193 } 194 195 /* Base Address Register */ 196 #define IWI_PCI_BAR0 0x10 197 198 static void 199 iwi_attach(device_t parent, device_t self, void *aux) 200 { 201 struct iwi_softc *sc = device_private(self); 202 struct ieee80211com *ic = &sc->sc_ic; 203 struct ifnet *ifp = &sc->sc_if; 204 struct pci_attach_args *pa = aux; 205 const char *intrstr; 206 bus_space_tag_t memt; 207 bus_space_handle_t memh; 208 pci_intr_handle_t ih; 209 pcireg_t data; 210 uint16_t val; 211 int error, i; 212 char intrbuf[PCI_INTRSTR_LEN]; 213 214 sc->sc_dev = self; 215 sc->sc_pct = pa->pa_pc; 216 sc->sc_pcitag = pa->pa_tag; 217 218 pci_aprint_devinfo(pa, NULL); 219 220 /* clear unit numbers allocated to IBSS */ 221 sc->sc_unr = 0; 222 223 /* power up chip */ 224 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 225 NULL)) && error != EOPNOTSUPP) { 226 aprint_error_dev(self, "cannot activate %d\n", error); 227 return; 228 } 229 230 /* clear device specific PCI configuration register 0x41 */ 231 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 232 data &= ~0x0000ff00; 233 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 234 235 236 /* enable bus-mastering */ 237 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 238 data |= PCI_COMMAND_MASTER_ENABLE; 239 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 240 241 /* map the register window */ 242 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 243 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 244 if (error != 0) { 245 aprint_error_dev(self, "could not map memory space\n"); 246 return; 247 } 248 249 sc->sc_st = memt; 250 sc->sc_sh = memh; 251 sc->sc_dmat = pa->pa_dmat; 252 253 /* disable interrupts */ 254 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 255 256 if (pci_intr_map(pa, &ih) != 0) { 257 aprint_error_dev(self, "could not map interrupt\n"); 258 return; 259 } 260 261 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 262 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 263 if (sc->sc_ih == NULL) { 264 aprint_error_dev(self, "could not establish interrupt"); 265 if (intrstr != NULL) 266 aprint_error(" at %s", intrstr); 267 aprint_error("\n"); 268 return; 269 } 270 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 271 272 if (iwi_reset(sc) != 0) { 273 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 274 aprint_error_dev(self, "could not reset adapter\n"); 275 return; 276 } 277 278 ic->ic_ifp = ifp; 279 ic->ic_wme.wme_update = iwi_wme_update; 280 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 281 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 282 ic->ic_state = IEEE80211_S_INIT; 283 284 sc->sc_fwname = "ipw2200-bss.fw"; 285 286 /* set device capabilities */ 287 ic->ic_caps = 288 IEEE80211_C_IBSS | /* IBSS mode supported */ 289 IEEE80211_C_MONITOR | /* monitor mode supported */ 290 IEEE80211_C_TXPMGT | /* tx power management */ 291 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 292 IEEE80211_C_SHSLOT | /* short slot time supported */ 293 IEEE80211_C_WPA | /* 802.11i */ 294 IEEE80211_C_WME; /* 802.11e */ 295 296 /* read MAC address from EEPROM */ 297 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 298 ic->ic_myaddr[0] = val & 0xff; 299 ic->ic_myaddr[1] = val >> 8; 300 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 301 ic->ic_myaddr[2] = val & 0xff; 302 ic->ic_myaddr[3] = val >> 8; 303 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 304 ic->ic_myaddr[4] = val & 0xff; 305 ic->ic_myaddr[5] = val >> 8; 306 307 aprint_verbose_dev(self, "802.11 address %s\n", 308 ether_sprintf(ic->ic_myaddr)); 309 310 /* read the NIC type from EEPROM */ 311 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 312 sc->nictype = val & 0xff; 313 314 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 315 316 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 317 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 318 /* set supported .11a rates (2915ABG only) */ 319 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 320 321 /* set supported .11a channels */ 322 for (i = 36; i <= 64; i += 4) { 323 ic->ic_channels[i].ic_freq = 324 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 325 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 326 } 327 for (i = 149; i <= 165; i += 4) { 328 ic->ic_channels[i].ic_freq = 329 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 330 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 331 } 332 } 333 334 /* set supported .11b and .11g rates */ 335 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 336 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 337 338 /* set supported .11b and .11g channels (1 through 14) */ 339 for (i = 1; i <= 14; i++) { 340 ic->ic_channels[i].ic_freq = 341 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 342 ic->ic_channels[i].ic_flags = 343 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 344 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 345 } 346 347 ifp->if_softc = sc; 348 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 349 ifp->if_init = iwi_init; 350 ifp->if_stop = iwi_stop; 351 ifp->if_ioctl = iwi_ioctl; 352 ifp->if_start = iwi_start; 353 ifp->if_watchdog = iwi_watchdog; 354 IFQ_SET_READY(&ifp->if_snd); 355 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 356 357 if_attach(ifp); 358 ieee80211_ifattach(ic); 359 /* override default methods */ 360 ic->ic_node_alloc = iwi_node_alloc; 361 sc->sc_node_free = ic->ic_node_free; 362 ic->ic_node_free = iwi_node_free; 363 /* override state transition machine */ 364 sc->sc_newstate = ic->ic_newstate; 365 ic->ic_newstate = iwi_newstate; 366 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 367 368 /* 369 * Allocate rings. 370 */ 371 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 372 aprint_error_dev(self, "could not allocate command ring\n"); 373 goto fail; 374 } 375 376 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 377 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 378 if (error != 0) { 379 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 380 goto fail; 381 } 382 383 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 384 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 385 if (error != 0) { 386 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 387 goto fail; 388 } 389 390 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 391 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 392 if (error != 0) { 393 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 394 goto fail; 395 } 396 397 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 398 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 399 if (error != 0) { 400 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 401 goto fail; 402 } 403 404 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 405 aprint_error_dev(self, "could not allocate Rx ring\n"); 406 goto fail; 407 } 408 409 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 410 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 411 412 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 413 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 414 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 415 416 sc->sc_txtap_len = sizeof sc->sc_txtapu; 417 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 418 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 419 420 iwi_sysctlattach(sc); 421 422 if (pmf_device_register(self, NULL, NULL)) 423 pmf_class_network_register(self, ifp); 424 else 425 aprint_error_dev(self, "couldn't establish power handler\n"); 426 427 ieee80211_announce(ic); 428 429 return; 430 431 fail: iwi_detach(self, 0); 432 } 433 434 static int 435 iwi_detach(device_t self, int flags) 436 { 437 struct iwi_softc *sc = device_private(self); 438 struct ifnet *ifp = &sc->sc_if; 439 440 pmf_device_deregister(self); 441 442 if (ifp != NULL) 443 iwi_stop(ifp, 1); 444 445 iwi_free_firmware(sc); 446 447 ieee80211_ifdetach(&sc->sc_ic); 448 if (ifp != NULL) 449 if_detach(ifp); 450 451 iwi_free_cmd_ring(sc, &sc->cmdq); 452 iwi_free_tx_ring(sc, &sc->txq[0]); 453 iwi_free_tx_ring(sc, &sc->txq[1]); 454 iwi_free_tx_ring(sc, &sc->txq[2]); 455 iwi_free_tx_ring(sc, &sc->txq[3]); 456 iwi_free_rx_ring(sc, &sc->rxq); 457 458 if (sc->sc_ih != NULL) { 459 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 460 sc->sc_ih = NULL; 461 } 462 463 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 464 465 return 0; 466 } 467 468 static int 469 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 470 int count) 471 { 472 int error, nsegs; 473 474 ring->count = count; 475 ring->queued = 0; 476 ring->cur = ring->next = 0; 477 478 /* 479 * Allocate and map command ring 480 */ 481 error = bus_dmamap_create(sc->sc_dmat, 482 IWI_CMD_DESC_SIZE * count, 1, 483 IWI_CMD_DESC_SIZE * count, 0, 484 BUS_DMA_NOWAIT, &ring->desc_map); 485 if (error != 0) { 486 aprint_error_dev(sc->sc_dev, 487 "could not create command ring DMA map\n"); 488 ring->desc_map = NULL; 489 goto fail; 490 } 491 492 error = bus_dmamem_alloc(sc->sc_dmat, 493 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 494 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 495 if (error != 0) { 496 aprint_error_dev(sc->sc_dev, 497 "could not allocate command ring DMA memory\n"); 498 goto fail; 499 } 500 501 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 502 IWI_CMD_DESC_SIZE * count, 503 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 504 if (error != 0) { 505 aprint_error_dev(sc->sc_dev, 506 "could not map command ring DMA memory\n"); 507 goto fail; 508 } 509 510 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 511 IWI_CMD_DESC_SIZE * count, NULL, 512 BUS_DMA_NOWAIT); 513 if (error != 0) { 514 aprint_error_dev(sc->sc_dev, 515 "could not load command ring DMA map\n"); 516 goto fail; 517 } 518 519 memset(sc->cmdq.desc, 0, 520 IWI_CMD_DESC_SIZE * count); 521 522 return 0; 523 524 fail: return error; 525 } 526 527 static void 528 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 529 { 530 int i; 531 532 for (i = ring->next; i != ring->cur;) { 533 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 534 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 535 BUS_DMASYNC_POSTWRITE); 536 537 wakeup(&ring->desc[i]); 538 i = (i + 1) % ring->count; 539 } 540 541 ring->queued = 0; 542 ring->cur = ring->next = 0; 543 } 544 545 static void 546 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 547 { 548 if (ring->desc_map != NULL) { 549 if (ring->desc != NULL) { 550 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 551 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 552 IWI_CMD_DESC_SIZE * ring->count); 553 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 554 } 555 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 556 } 557 } 558 559 static int 560 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 561 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 562 { 563 int i, error, nsegs; 564 565 ring->count = 0; 566 ring->queued = 0; 567 ring->cur = ring->next = 0; 568 ring->csr_ridx = csr_ridx; 569 ring->csr_widx = csr_widx; 570 571 /* 572 * Allocate and map Tx ring 573 */ 574 error = bus_dmamap_create(sc->sc_dmat, 575 IWI_TX_DESC_SIZE * count, 1, 576 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 577 &ring->desc_map); 578 if (error != 0) { 579 aprint_error_dev(sc->sc_dev, 580 "could not create tx ring DMA map\n"); 581 ring->desc_map = NULL; 582 goto fail; 583 } 584 585 error = bus_dmamem_alloc(sc->sc_dmat, 586 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 587 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 588 if (error != 0) { 589 aprint_error_dev(sc->sc_dev, 590 "could not allocate tx ring DMA memory\n"); 591 goto fail; 592 } 593 594 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 595 IWI_TX_DESC_SIZE * count, 596 (void **)&ring->desc, BUS_DMA_NOWAIT); 597 if (error != 0) { 598 aprint_error_dev(sc->sc_dev, 599 "could not map tx ring DMA memory\n"); 600 goto fail; 601 } 602 603 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 604 IWI_TX_DESC_SIZE * count, NULL, 605 BUS_DMA_NOWAIT); 606 if (error != 0) { 607 aprint_error_dev(sc->sc_dev, 608 "could not load tx ring DMA map\n"); 609 goto fail; 610 } 611 612 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 613 614 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 615 M_NOWAIT | M_ZERO); 616 if (ring->data == NULL) { 617 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 618 error = ENOMEM; 619 goto fail; 620 } 621 ring->count = count; 622 623 /* 624 * Allocate Tx buffers DMA maps 625 */ 626 for (i = 0; i < count; i++) { 627 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 628 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 629 if (error != 0) { 630 aprint_error_dev(sc->sc_dev, 631 "could not create tx buf DMA map"); 632 ring->data[i].map = NULL; 633 goto fail; 634 } 635 } 636 return 0; 637 638 fail: return error; 639 } 640 641 static void 642 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 643 { 644 struct iwi_tx_data *data; 645 int i; 646 647 for (i = 0; i < ring->count; i++) { 648 data = &ring->data[i]; 649 650 if (data->m != NULL) { 651 m_freem(data->m); 652 data->m = NULL; 653 } 654 655 if (data->map != NULL) { 656 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 657 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 658 bus_dmamap_unload(sc->sc_dmat, data->map); 659 } 660 661 if (data->ni != NULL) { 662 ieee80211_free_node(data->ni); 663 data->ni = NULL; 664 } 665 } 666 667 ring->queued = 0; 668 ring->cur = ring->next = 0; 669 } 670 671 static void 672 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 673 { 674 int i; 675 struct iwi_tx_data *data; 676 677 if (ring->desc_map != NULL) { 678 if (ring->desc != NULL) { 679 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 680 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 681 IWI_TX_DESC_SIZE * ring->count); 682 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 683 } 684 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 685 } 686 687 for (i = 0; i < ring->count; i++) { 688 data = &ring->data[i]; 689 690 if (data->m != NULL) { 691 m_freem(data->m); 692 } 693 694 if (data->map != NULL) { 695 bus_dmamap_unload(sc->sc_dmat, data->map); 696 bus_dmamap_destroy(sc->sc_dmat, data->map); 697 } 698 } 699 } 700 701 static int 702 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 703 { 704 int i, error; 705 706 ring->count = 0; 707 ring->cur = 0; 708 709 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 710 M_NOWAIT | M_ZERO); 711 if (ring->data == NULL) { 712 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 713 error = ENOMEM; 714 goto fail; 715 } 716 717 ring->count = count; 718 719 /* 720 * Allocate and map Rx buffers 721 */ 722 for (i = 0; i < count; i++) { 723 724 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 725 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 726 if (error != 0) { 727 aprint_error_dev(sc->sc_dev, 728 "could not create rx buf DMA map"); 729 ring->data[i].map = NULL; 730 goto fail; 731 } 732 733 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 734 error = ENOMEM; 735 goto fail; 736 } 737 738 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 739 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 740 if (error != 0) { 741 aprint_error_dev(sc->sc_dev, 742 "could not load rx buffer DMA map\n"); 743 goto fail; 744 } 745 746 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 747 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 748 } 749 750 return 0; 751 752 fail: return error; 753 } 754 755 static void 756 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 757 { 758 ring->cur = 0; 759 } 760 761 static void 762 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 763 { 764 int i; 765 struct iwi_rx_data *data; 766 767 for (i = 0; i < ring->count; i++) { 768 data = &ring->data[i]; 769 770 if (data->m != NULL) { 771 m_freem(data->m); 772 } 773 774 if (data->map != NULL) { 775 bus_dmamap_unload(sc->sc_dmat, data->map); 776 bus_dmamap_destroy(sc->sc_dmat, data->map); 777 } 778 779 } 780 } 781 782 static struct ieee80211_node * 783 iwi_node_alloc(struct ieee80211_node_table *nt) 784 { 785 struct iwi_node *in; 786 787 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 788 if (in == NULL) 789 return NULL; 790 791 in->in_station = -1; 792 793 return &in->in_node; 794 } 795 796 static int 797 iwi_alloc_unr(struct iwi_softc *sc) 798 { 799 int i; 800 801 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 802 if ((sc->sc_unr & (1 << i)) == 0) { 803 sc->sc_unr |= 1 << i; 804 return i; 805 } 806 807 return -1; 808 } 809 810 static void 811 iwi_free_unr(struct iwi_softc *sc, int r) 812 { 813 814 sc->sc_unr &= 1 << r; 815 } 816 817 static void 818 iwi_node_free(struct ieee80211_node *ni) 819 { 820 struct ieee80211com *ic = ni->ni_ic; 821 struct iwi_softc *sc = ic->ic_ifp->if_softc; 822 struct iwi_node *in = (struct iwi_node *)ni; 823 824 if (in->in_station != -1) 825 iwi_free_unr(sc, in->in_station); 826 827 sc->sc_node_free(ni); 828 } 829 830 static int 831 iwi_media_change(struct ifnet *ifp) 832 { 833 int error; 834 835 error = ieee80211_media_change(ifp); 836 if (error != ENETRESET) 837 return error; 838 839 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 840 iwi_init(ifp); 841 842 return 0; 843 } 844 845 /* 846 * Convert h/w rate code to IEEE rate code. 847 */ 848 static int 849 iwi_cvtrate(int iwirate) 850 { 851 switch (iwirate) { 852 case IWI_RATE_DS1: return 2; 853 case IWI_RATE_DS2: return 4; 854 case IWI_RATE_DS5: return 11; 855 case IWI_RATE_DS11: return 22; 856 case IWI_RATE_OFDM6: return 12; 857 case IWI_RATE_OFDM9: return 18; 858 case IWI_RATE_OFDM12: return 24; 859 case IWI_RATE_OFDM18: return 36; 860 case IWI_RATE_OFDM24: return 48; 861 case IWI_RATE_OFDM36: return 72; 862 case IWI_RATE_OFDM48: return 96; 863 case IWI_RATE_OFDM54: return 108; 864 } 865 return 0; 866 } 867 868 /* 869 * The firmware automatically adapts the transmit speed. We report its current 870 * value here. 871 */ 872 static void 873 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 874 { 875 struct iwi_softc *sc = ifp->if_softc; 876 struct ieee80211com *ic = &sc->sc_ic; 877 int rate; 878 879 imr->ifm_status = IFM_AVALID; 880 imr->ifm_active = IFM_IEEE80211; 881 if (ic->ic_state == IEEE80211_S_RUN) 882 imr->ifm_status |= IFM_ACTIVE; 883 884 /* read current transmission rate from adapter */ 885 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 886 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 887 888 switch (ic->ic_opmode) { 889 case IEEE80211_M_STA: 890 break; 891 892 case IEEE80211_M_IBSS: 893 imr->ifm_active |= IFM_IEEE80211_ADHOC; 894 break; 895 896 case IEEE80211_M_MONITOR: 897 imr->ifm_active |= IFM_IEEE80211_MONITOR; 898 break; 899 900 case IEEE80211_M_AHDEMO: 901 case IEEE80211_M_HOSTAP: 902 /* should not get there */ 903 break; 904 } 905 } 906 907 static int 908 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 909 { 910 struct iwi_softc *sc = ic->ic_ifp->if_softc; 911 912 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 913 ieee80211_state_name[ic->ic_state], 914 ieee80211_state_name[nstate], sc->flags)); 915 916 switch (nstate) { 917 case IEEE80211_S_SCAN: 918 if (sc->flags & IWI_FLAG_SCANNING) 919 break; 920 921 ieee80211_node_table_reset(&ic->ic_scan); 922 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 923 sc->flags |= IWI_FLAG_SCANNING; 924 /* blink the led while scanning */ 925 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 926 iwi_scan(sc); 927 break; 928 929 case IEEE80211_S_AUTH: 930 iwi_auth_and_assoc(sc); 931 break; 932 933 case IEEE80211_S_RUN: 934 if (ic->ic_opmode == IEEE80211_M_IBSS && 935 ic->ic_state == IEEE80211_S_SCAN) 936 iwi_auth_and_assoc(sc); 937 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 938 iwi_set_chan(sc, ic->ic_ibss_chan); 939 break; 940 case IEEE80211_S_ASSOC: 941 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 942 if (ic->ic_state == IEEE80211_S_AUTH) 943 break; 944 iwi_auth_and_assoc(sc); 945 break; 946 947 case IEEE80211_S_INIT: 948 sc->flags &= ~IWI_FLAG_SCANNING; 949 break; 950 } 951 952 return sc->sc_newstate(ic, nstate, arg); 953 } 954 955 /* 956 * WME parameters coming from IEEE 802.11e specification. These values are 957 * already declared in ieee80211_proto.c, but they are static so they can't 958 * be reused here. 959 */ 960 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 961 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 962 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 963 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 964 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 965 }; 966 967 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 968 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 969 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 970 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 971 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 972 }; 973 974 static int 975 iwi_wme_update(struct ieee80211com *ic) 976 { 977 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 978 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 979 struct iwi_softc *sc = ic->ic_ifp->if_softc; 980 struct iwi_wme_params wme[3]; 981 const struct wmeParams *wmep; 982 int ac; 983 984 /* 985 * We shall not override firmware default WME values if WME is not 986 * actually enabled. 987 */ 988 if (!(ic->ic_flags & IEEE80211_F_WME)) 989 return 0; 990 991 for (ac = 0; ac < WME_NUM_AC; ac++) { 992 /* set WME values for current operating mode */ 993 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 994 wme[0].aifsn[ac] = wmep->wmep_aifsn; 995 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 996 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 997 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 998 wme[0].acm[ac] = wmep->wmep_acm; 999 1000 /* set WME values for CCK modulation */ 1001 wmep = &iwi_wme_cck_params[ac]; 1002 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1003 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1004 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1005 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1006 wme[1].acm[ac] = wmep->wmep_acm; 1007 1008 /* set WME values for OFDM modulation */ 1009 wmep = &iwi_wme_ofdm_params[ac]; 1010 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1011 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1012 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1013 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1014 wme[2].acm[ac] = wmep->wmep_acm; 1015 } 1016 1017 DPRINTF(("Setting WME parameters\n")); 1018 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1019 #undef IWI_USEC 1020 #undef IWI_EXP2 1021 } 1022 1023 /* 1024 * Read 16 bits at address 'addr' from the serial EEPROM. 1025 */ 1026 static uint16_t 1027 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1028 { 1029 uint32_t tmp; 1030 uint16_t val; 1031 int n; 1032 1033 /* Clock C once before the first command */ 1034 IWI_EEPROM_CTL(sc, 0); 1035 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1037 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1038 1039 /* Write start bit (1) */ 1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1041 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1042 1043 /* Write READ opcode (10) */ 1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1048 1049 /* Write address A7-A0 */ 1050 for (n = 7; n >= 0; n--) { 1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1052 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1054 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1055 } 1056 1057 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1058 1059 /* Read data Q15-Q0 */ 1060 val = 0; 1061 for (n = 15; n >= 0; n--) { 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1063 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1064 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1065 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1066 } 1067 1068 IWI_EEPROM_CTL(sc, 0); 1069 1070 /* Clear Chip Select and clock C */ 1071 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1072 IWI_EEPROM_CTL(sc, 0); 1073 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1074 1075 return val; 1076 } 1077 1078 /* 1079 * XXX: Hack to set the current channel to the value advertised in beacons or 1080 * probe responses. Only used during AP detection. 1081 */ 1082 static void 1083 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1084 { 1085 struct ieee80211_frame *wh; 1086 uint8_t subtype; 1087 uint8_t *frm, *efrm; 1088 1089 wh = mtod(m, struct ieee80211_frame *); 1090 1091 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1092 return; 1093 1094 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1095 1096 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1097 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1098 return; 1099 1100 frm = (uint8_t *)(wh + 1); 1101 efrm = mtod(m, uint8_t *) + m->m_len; 1102 1103 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1104 while (frm < efrm) { 1105 if (*frm == IEEE80211_ELEMID_DSPARMS) 1106 #if IEEE80211_CHAN_MAX < 255 1107 if (frm[2] <= IEEE80211_CHAN_MAX) 1108 #endif 1109 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1110 1111 frm += frm[1] + 2; 1112 } 1113 } 1114 1115 static struct mbuf * 1116 iwi_alloc_rx_buf(struct iwi_softc *sc) 1117 { 1118 struct mbuf *m; 1119 1120 MGETHDR(m, M_DONTWAIT, MT_DATA); 1121 if (m == NULL) { 1122 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1123 return NULL; 1124 } 1125 1126 MCLGET(m, M_DONTWAIT); 1127 if (!(m->m_flags & M_EXT)) { 1128 aprint_error_dev(sc->sc_dev, 1129 "could not allocate rx mbuf cluster\n"); 1130 m_freem(m); 1131 return NULL; 1132 } 1133 1134 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1135 return m; 1136 } 1137 1138 static void 1139 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1140 struct iwi_frame *frame) 1141 { 1142 struct ieee80211com *ic = &sc->sc_ic; 1143 struct ifnet *ifp = ic->ic_ifp; 1144 struct mbuf *m, *m_new; 1145 struct ieee80211_frame *wh; 1146 struct ieee80211_node *ni; 1147 int error; 1148 1149 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1150 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1151 1152 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1153 le16toh(frame->len) > MCLBYTES) { 1154 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1155 ifp->if_ierrors++; 1156 return; 1157 } 1158 1159 /* 1160 * Try to allocate a new mbuf for this ring element and 1161 * load it before processing the current mbuf. If the ring 1162 * element cannot be reloaded, drop the received packet 1163 * and reuse the old mbuf. In the unlikely case that 1164 * the old mbuf can't be reloaded either, explicitly panic. 1165 * 1166 * XXX Reorganize buffer by moving elements from the logical 1167 * end of the ring to the front instead of dropping. 1168 */ 1169 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1170 ifp->if_ierrors++; 1171 return; 1172 } 1173 1174 bus_dmamap_unload(sc->sc_dmat, data->map); 1175 1176 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1177 BUS_DMA_READ | BUS_DMA_NOWAIT); 1178 if (error != 0) { 1179 aprint_error_dev(sc->sc_dev, 1180 "could not load rx buf DMA map\n"); 1181 m_freem(m_new); 1182 ifp->if_ierrors++; 1183 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1184 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1185 if (error) 1186 panic("%s: unable to remap rx buf", 1187 device_xname(sc->sc_dev)); 1188 return; 1189 } 1190 1191 /* 1192 * New mbuf successfully loaded, update RX ring and continue 1193 * processing. 1194 */ 1195 m = data->m; 1196 data->m = m_new; 1197 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1198 1199 /* Finalize mbuf */ 1200 m->m_pkthdr.rcvif = ifp; 1201 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1202 sizeof (struct iwi_frame) + le16toh(frame->len); 1203 1204 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1205 1206 if (ic->ic_state == IEEE80211_S_SCAN) 1207 iwi_fix_channel(ic, m); 1208 1209 if (sc->sc_drvbpf != NULL) { 1210 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1211 1212 tap->wr_flags = 0; 1213 tap->wr_rate = iwi_cvtrate(frame->rate); 1214 tap->wr_chan_freq = 1215 htole16(ic->ic_channels[frame->chan].ic_freq); 1216 tap->wr_chan_flags = 1217 htole16(ic->ic_channels[frame->chan].ic_flags); 1218 tap->wr_antsignal = frame->signal; 1219 tap->wr_antenna = frame->antenna; 1220 1221 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1222 } 1223 wh = mtod(m, struct ieee80211_frame *); 1224 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1225 1226 /* Send the frame to the upper layer */ 1227 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1228 1229 /* node is no longer needed */ 1230 ieee80211_free_node(ni); 1231 } 1232 1233 static void 1234 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1235 { 1236 struct ieee80211com *ic = &sc->sc_ic; 1237 struct iwi_notif_authentication *auth; 1238 struct iwi_notif_association *assoc; 1239 struct iwi_notif_beacon_state *beacon; 1240 1241 switch (notif->type) { 1242 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1243 #ifdef IWI_DEBUG 1244 { 1245 struct iwi_notif_scan_channel *chan = 1246 (struct iwi_notif_scan_channel *)(notif + 1); 1247 1248 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1249 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1250 } 1251 #endif 1252 break; 1253 1254 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1255 #ifdef IWI_DEBUG 1256 { 1257 struct iwi_notif_scan_complete *scan = 1258 (struct iwi_notif_scan_complete *)(notif + 1); 1259 1260 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1261 scan->status)); 1262 } 1263 #endif 1264 1265 /* monitor mode uses scan to set the channel ... */ 1266 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1267 sc->flags &= ~IWI_FLAG_SCANNING; 1268 ieee80211_end_scan(ic); 1269 } else 1270 iwi_set_chan(sc, ic->ic_ibss_chan); 1271 break; 1272 1273 case IWI_NOTIF_TYPE_AUTHENTICATION: 1274 auth = (struct iwi_notif_authentication *)(notif + 1); 1275 1276 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1277 1278 switch (auth->state) { 1279 case IWI_AUTH_SUCCESS: 1280 ieee80211_node_authorize(ic->ic_bss); 1281 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1282 break; 1283 1284 case IWI_AUTH_FAIL: 1285 break; 1286 1287 default: 1288 aprint_error_dev(sc->sc_dev, 1289 "unknown authentication state %u\n", auth->state); 1290 } 1291 break; 1292 1293 case IWI_NOTIF_TYPE_ASSOCIATION: 1294 assoc = (struct iwi_notif_association *)(notif + 1); 1295 1296 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1297 assoc->status)); 1298 1299 switch (assoc->state) { 1300 case IWI_AUTH_SUCCESS: 1301 /* re-association, do nothing */ 1302 break; 1303 1304 case IWI_ASSOC_SUCCESS: 1305 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1306 break; 1307 1308 case IWI_ASSOC_FAIL: 1309 ieee80211_begin_scan(ic, 1); 1310 break; 1311 1312 default: 1313 aprint_error_dev(sc->sc_dev, 1314 "unknown association state %u\n", assoc->state); 1315 } 1316 break; 1317 1318 case IWI_NOTIF_TYPE_BEACON: 1319 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1320 1321 if (beacon->state == IWI_BEACON_MISS) { 1322 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1323 device_xname(sc->sc_dev), le32toh(beacon->number))); 1324 } 1325 break; 1326 1327 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1328 case IWI_NOTIF_TYPE_LINK_QUALITY: 1329 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1330 case IWI_NOTIF_TYPE_CALIBRATION: 1331 case IWI_NOTIF_TYPE_NOISE: 1332 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1333 break; 1334 1335 default: 1336 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1337 device_xname(sc->sc_dev), notif->type, notif->flags, 1338 le16toh(notif->len))); 1339 } 1340 } 1341 1342 static void 1343 iwi_cmd_intr(struct iwi_softc *sc) 1344 { 1345 1346 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1347 1348 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1349 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1350 BUS_DMASYNC_POSTWRITE); 1351 1352 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1353 1354 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1355 1356 if (--sc->cmdq.queued > 0) { 1357 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1358 } 1359 } 1360 1361 static void 1362 iwi_rx_intr(struct iwi_softc *sc) 1363 { 1364 struct iwi_rx_data *data; 1365 struct iwi_hdr *hdr; 1366 uint32_t hw; 1367 1368 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1369 1370 for (; sc->rxq.cur != hw;) { 1371 data = &sc->rxq.data[sc->rxq.cur]; 1372 1373 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1374 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1375 1376 hdr = mtod(data->m, struct iwi_hdr *); 1377 1378 switch (hdr->type) { 1379 case IWI_HDR_TYPE_FRAME: 1380 iwi_frame_intr(sc, data, sc->rxq.cur, 1381 (struct iwi_frame *)(hdr + 1)); 1382 break; 1383 1384 case IWI_HDR_TYPE_NOTIF: 1385 iwi_notification_intr(sc, 1386 (struct iwi_notif *)(hdr + 1)); 1387 break; 1388 1389 default: 1390 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1391 hdr->type); 1392 } 1393 1394 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1395 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1396 1397 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1398 1399 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1400 } 1401 1402 /* Tell the firmware what we have processed */ 1403 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1404 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1405 } 1406 1407 static void 1408 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1409 { 1410 struct ifnet *ifp = &sc->sc_if; 1411 struct iwi_tx_data *data; 1412 uint32_t hw; 1413 1414 hw = CSR_READ_4(sc, txq->csr_ridx); 1415 1416 for (; txq->next != hw;) { 1417 data = &txq->data[txq->next]; 1418 1419 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1420 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1421 bus_dmamap_unload(sc->sc_dmat, data->map); 1422 m_freem(data->m); 1423 data->m = NULL; 1424 ieee80211_free_node(data->ni); 1425 data->ni = NULL; 1426 1427 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1428 1429 ifp->if_opackets++; 1430 1431 txq->queued--; 1432 txq->next = (txq->next + 1) % txq->count; 1433 } 1434 1435 sc->sc_tx_timer = 0; 1436 ifp->if_flags &= ~IFF_OACTIVE; 1437 1438 /* Call start() since some buffer descriptors have been released */ 1439 (*ifp->if_start)(ifp); 1440 } 1441 1442 static int 1443 iwi_intr(void *arg) 1444 { 1445 struct iwi_softc *sc = arg; 1446 uint32_t r; 1447 1448 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1449 return 0; 1450 1451 /* Acknowledge interrupts */ 1452 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1453 1454 if (r & IWI_INTR_FATAL_ERROR) { 1455 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1456 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1457 iwi_stop(&sc->sc_if, 1); 1458 return (1); 1459 } 1460 1461 if (r & IWI_INTR_FW_INITED) { 1462 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1463 wakeup(sc); 1464 } 1465 1466 if (r & IWI_INTR_RADIO_OFF) { 1467 DPRINTF(("radio transmitter off\n")); 1468 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1469 iwi_stop(&sc->sc_if, 1); 1470 return (1); 1471 } 1472 1473 if (r & IWI_INTR_CMD_DONE) 1474 iwi_cmd_intr(sc); 1475 1476 if (r & IWI_INTR_TX1_DONE) 1477 iwi_tx_intr(sc, &sc->txq[0]); 1478 1479 if (r & IWI_INTR_TX2_DONE) 1480 iwi_tx_intr(sc, &sc->txq[1]); 1481 1482 if (r & IWI_INTR_TX3_DONE) 1483 iwi_tx_intr(sc, &sc->txq[2]); 1484 1485 if (r & IWI_INTR_TX4_DONE) 1486 iwi_tx_intr(sc, &sc->txq[3]); 1487 1488 if (r & IWI_INTR_RX_DONE) 1489 iwi_rx_intr(sc); 1490 1491 if (r & IWI_INTR_PARITY_ERROR) 1492 aprint_error_dev(sc->sc_dev, "parity error\n"); 1493 1494 return 1; 1495 } 1496 1497 static int 1498 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1499 int async) 1500 { 1501 struct iwi_cmd_desc *desc; 1502 1503 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1504 1505 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1506 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1507 desc->type = type; 1508 desc->len = len; 1509 memcpy(desc->data, data, len); 1510 1511 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1512 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1513 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1514 1515 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1516 sc->cmdq.cur, type, len, async)); 1517 1518 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1519 1520 if (++sc->cmdq.queued == 1) 1521 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1522 1523 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1524 } 1525 1526 static void 1527 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1528 { 1529 struct iwi_ibssnode node; 1530 1531 /* write node information into NIC memory */ 1532 memset(&node, 0, sizeof node); 1533 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1534 1535 CSR_WRITE_REGION_1(sc, 1536 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1537 (uint8_t *)&node, sizeof node); 1538 } 1539 1540 static int 1541 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1542 int ac) 1543 { 1544 struct iwi_softc *sc = ifp->if_softc; 1545 struct ieee80211com *ic = &sc->sc_ic; 1546 struct iwi_node *in = (struct iwi_node *)ni; 1547 struct ieee80211_frame *wh; 1548 struct ieee80211_key *k; 1549 const struct chanAccParams *cap; 1550 struct iwi_tx_ring *txq = &sc->txq[ac]; 1551 struct iwi_tx_data *data; 1552 struct iwi_tx_desc *desc; 1553 struct mbuf *mnew; 1554 int error, hdrlen, i, noack = 0; 1555 1556 wh = mtod(m0, struct ieee80211_frame *); 1557 1558 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1559 hdrlen = sizeof (struct ieee80211_qosframe); 1560 cap = &ic->ic_wme.wme_chanParams; 1561 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1562 } else 1563 hdrlen = sizeof (struct ieee80211_frame); 1564 1565 /* 1566 * This is only used in IBSS mode where the firmware expect an index 1567 * in a h/w table instead of a destination address. 1568 */ 1569 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1570 in->in_station = iwi_alloc_unr(sc); 1571 1572 if (in->in_station == -1) { /* h/w table is full */ 1573 m_freem(m0); 1574 ieee80211_free_node(ni); 1575 ifp->if_oerrors++; 1576 return 0; 1577 } 1578 iwi_write_ibssnode(sc, in); 1579 } 1580 1581 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1582 k = ieee80211_crypto_encap(ic, ni, m0); 1583 if (k == NULL) { 1584 m_freem(m0); 1585 return ENOBUFS; 1586 } 1587 1588 /* packet header may have moved, reset our local pointer */ 1589 wh = mtod(m0, struct ieee80211_frame *); 1590 } 1591 1592 if (sc->sc_drvbpf != NULL) { 1593 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1594 1595 tap->wt_flags = 0; 1596 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1597 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1598 1599 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1600 } 1601 1602 data = &txq->data[txq->cur]; 1603 desc = &txq->desc[txq->cur]; 1604 1605 /* save and trim IEEE802.11 header */ 1606 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1607 m_adj(m0, hdrlen); 1608 1609 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1610 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1611 if (error != 0 && error != EFBIG) { 1612 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1613 error); 1614 m_freem(m0); 1615 return error; 1616 } 1617 if (error != 0) { 1618 /* too many fragments, linearize */ 1619 1620 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1621 if (mnew == NULL) { 1622 m_freem(m0); 1623 return ENOMEM; 1624 } 1625 1626 M_COPY_PKTHDR(mnew, m0); 1627 1628 /* If the data won't fit in the header, get a cluster */ 1629 if (m0->m_pkthdr.len > MHLEN) { 1630 MCLGET(mnew, M_DONTWAIT); 1631 if (!(mnew->m_flags & M_EXT)) { 1632 m_freem(m0); 1633 m_freem(mnew); 1634 return ENOMEM; 1635 } 1636 } 1637 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1638 m_freem(m0); 1639 mnew->m_len = mnew->m_pkthdr.len; 1640 m0 = mnew; 1641 1642 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1643 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1644 if (error != 0) { 1645 aprint_error_dev(sc->sc_dev, 1646 "could not map mbuf (error %d)\n", error); 1647 m_freem(m0); 1648 return error; 1649 } 1650 } 1651 1652 data->m = m0; 1653 data->ni = ni; 1654 1655 desc->hdr.type = IWI_HDR_TYPE_DATA; 1656 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1657 desc->station = 1658 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1659 desc->cmd = IWI_DATA_CMD_TX; 1660 desc->len = htole16(m0->m_pkthdr.len); 1661 desc->flags = 0; 1662 desc->xflags = 0; 1663 1664 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1665 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1666 1667 #if 0 1668 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1669 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1670 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1671 } else 1672 #endif 1673 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1674 1675 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1676 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1677 1678 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1679 desc->xflags |= IWI_DATA_XFLAG_QOS; 1680 1681 if (ic->ic_curmode == IEEE80211_MODE_11B) 1682 desc->xflags |= IWI_DATA_XFLAG_CCK; 1683 1684 desc->nseg = htole32(data->map->dm_nsegs); 1685 for (i = 0; i < data->map->dm_nsegs; i++) { 1686 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1687 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1688 } 1689 1690 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1691 txq->cur * IWI_TX_DESC_SIZE, 1692 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1693 1694 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1695 BUS_DMASYNC_PREWRITE); 1696 1697 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1698 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1699 1700 /* Inform firmware about this new packet */ 1701 txq->queued++; 1702 txq->cur = (txq->cur + 1) % txq->count; 1703 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1704 1705 return 0; 1706 } 1707 1708 static void 1709 iwi_start(struct ifnet *ifp) 1710 { 1711 struct iwi_softc *sc = ifp->if_softc; 1712 struct ieee80211com *ic = &sc->sc_ic; 1713 struct mbuf *m0; 1714 struct ether_header *eh; 1715 struct ieee80211_node *ni; 1716 int ac; 1717 1718 if (ic->ic_state != IEEE80211_S_RUN) 1719 return; 1720 1721 for (;;) { 1722 IF_DEQUEUE(&ifp->if_snd, m0); 1723 if (m0 == NULL) 1724 break; 1725 1726 if (m0->m_len < sizeof (struct ether_header) && 1727 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1728 ifp->if_oerrors++; 1729 continue; 1730 } 1731 1732 eh = mtod(m0, struct ether_header *); 1733 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1734 if (ni == NULL) { 1735 m_freem(m0); 1736 ifp->if_oerrors++; 1737 continue; 1738 } 1739 1740 /* classify mbuf so we can find which tx ring to use */ 1741 if (ieee80211_classify(ic, m0, ni) != 0) { 1742 m_freem(m0); 1743 ieee80211_free_node(ni); 1744 ifp->if_oerrors++; 1745 continue; 1746 } 1747 1748 /* no QoS encapsulation for EAPOL frames */ 1749 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1750 M_WME_GETAC(m0) : WME_AC_BE; 1751 1752 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1753 /* there is no place left in this ring */ 1754 IF_PREPEND(&ifp->if_snd, m0); 1755 ifp->if_flags |= IFF_OACTIVE; 1756 break; 1757 } 1758 1759 bpf_mtap(ifp, m0); 1760 1761 m0 = ieee80211_encap(ic, m0, ni); 1762 if (m0 == NULL) { 1763 ieee80211_free_node(ni); 1764 ifp->if_oerrors++; 1765 continue; 1766 } 1767 1768 bpf_mtap3(ic->ic_rawbpf, m0); 1769 1770 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1771 ieee80211_free_node(ni); 1772 ifp->if_oerrors++; 1773 break; 1774 } 1775 1776 /* start watchdog timer */ 1777 sc->sc_tx_timer = 5; 1778 ifp->if_timer = 1; 1779 } 1780 } 1781 1782 static void 1783 iwi_watchdog(struct ifnet *ifp) 1784 { 1785 struct iwi_softc *sc = ifp->if_softc; 1786 1787 ifp->if_timer = 0; 1788 1789 if (sc->sc_tx_timer > 0) { 1790 if (--sc->sc_tx_timer == 0) { 1791 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1792 ifp->if_oerrors++; 1793 ifp->if_flags &= ~IFF_UP; 1794 iwi_stop(ifp, 1); 1795 return; 1796 } 1797 ifp->if_timer = 1; 1798 } 1799 1800 ieee80211_watchdog(&sc->sc_ic); 1801 } 1802 1803 static int 1804 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1805 { 1806 uint32_t size, buf[128]; 1807 1808 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1809 memset(buf, 0, sizeof buf); 1810 return copyout(buf, tbl, sizeof buf); 1811 } 1812 1813 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1814 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1815 1816 return copyout(buf, tbl, sizeof buf); 1817 } 1818 1819 static int 1820 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1821 { 1822 #define IS_RUNNING(ifp) \ 1823 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1824 1825 struct iwi_softc *sc = ifp->if_softc; 1826 struct ieee80211com *ic = &sc->sc_ic; 1827 struct ifreq *ifr = (struct ifreq *)data; 1828 int s, error = 0; 1829 int val; 1830 1831 s = splnet(); 1832 1833 switch (cmd) { 1834 case SIOCSIFFLAGS: 1835 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1836 break; 1837 if (ifp->if_flags & IFF_UP) { 1838 if (!(ifp->if_flags & IFF_RUNNING)) 1839 iwi_init(ifp); 1840 } else { 1841 if (ifp->if_flags & IFF_RUNNING) 1842 iwi_stop(ifp, 1); 1843 } 1844 break; 1845 1846 case SIOCADDMULTI: 1847 case SIOCDELMULTI: 1848 /* XXX no h/w multicast filter? --dyoung */ 1849 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1850 /* setup multicast filter, etc */ 1851 error = 0; 1852 } 1853 break; 1854 1855 case SIOCGTABLE0: 1856 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1857 break; 1858 1859 case SIOCGRADIO: 1860 val = !iwi_getrfkill(sc); 1861 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1862 break; 1863 1864 case SIOCSIFMEDIA: 1865 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1866 sc->sc_fwname = "ipw2200-ibss.fw"; 1867 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1868 sc->sc_fwname = "ipw2200-sniffer.fw"; 1869 } else { 1870 sc->sc_fwname = "ipw2200-bss.fw"; 1871 } 1872 error = iwi_cache_firmware(sc); 1873 if (error) 1874 break; 1875 /* FALLTRHOUGH */ 1876 1877 default: 1878 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1879 1880 if (error == ENETRESET) { 1881 if (IS_RUNNING(ifp) && 1882 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1883 iwi_init(ifp); 1884 error = 0; 1885 } 1886 } 1887 1888 splx(s); 1889 return error; 1890 #undef IS_RUNNING 1891 } 1892 1893 static void 1894 iwi_stop_master(struct iwi_softc *sc) 1895 { 1896 int ntries; 1897 1898 /* Disable interrupts */ 1899 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1900 1901 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1902 for (ntries = 0; ntries < 5; ntries++) { 1903 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1904 break; 1905 DELAY(10); 1906 } 1907 if (ntries == 5) 1908 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1909 1910 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1911 IWI_RST_PRINCETON_RESET); 1912 1913 sc->flags &= ~IWI_FLAG_FW_INITED; 1914 } 1915 1916 static int 1917 iwi_reset(struct iwi_softc *sc) 1918 { 1919 int i, ntries; 1920 1921 iwi_stop_master(sc); 1922 1923 /* Move adapter to D0 state */ 1924 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1925 IWI_CTL_INIT); 1926 1927 /* Initialize Phase-Locked Level (PLL) */ 1928 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1929 1930 /* Wait for clock stabilization */ 1931 for (ntries = 0; ntries < 1000; ntries++) { 1932 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1933 break; 1934 DELAY(200); 1935 } 1936 if (ntries == 1000) { 1937 aprint_error_dev(sc->sc_dev, 1938 "timeout waiting for clock stabilization\n"); 1939 return ETIMEDOUT; 1940 } 1941 1942 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1943 IWI_RST_SW_RESET); 1944 1945 DELAY(10); 1946 1947 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1948 IWI_CTL_INIT); 1949 1950 /* Clear NIC memory */ 1951 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1952 for (i = 0; i < 0xc000; i++) 1953 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1954 1955 return 0; 1956 } 1957 1958 static int 1959 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1960 { 1961 uint16_t *w; 1962 int ntries, i; 1963 1964 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1965 IWI_RST_STOP_MASTER); 1966 for (ntries = 0; ntries < 5; ntries++) { 1967 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1968 break; 1969 DELAY(10); 1970 } 1971 if (ntries == 5) { 1972 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1973 return ETIMEDOUT; 1974 } 1975 1976 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1977 DELAY(5000); 1978 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1979 ~IWI_RST_PRINCETON_RESET); 1980 DELAY(5000); 1981 MEM_WRITE_4(sc, 0x3000e0, 0); 1982 DELAY(1000); 1983 MEM_WRITE_4(sc, 0x300004, 1); 1984 DELAY(1000); 1985 MEM_WRITE_4(sc, 0x300004, 0); 1986 DELAY(1000); 1987 MEM_WRITE_1(sc, 0x200000, 0x00); 1988 MEM_WRITE_1(sc, 0x200000, 0x40); 1989 DELAY(1000); 1990 1991 /* Adapter is buggy, we must set the address for each word */ 1992 for (w = uc; size > 0; w++, size -= 2) 1993 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1994 1995 MEM_WRITE_1(sc, 0x200000, 0x00); 1996 MEM_WRITE_1(sc, 0x200000, 0x80); 1997 1998 /* Wait until we get a response in the uc queue */ 1999 for (ntries = 0; ntries < 100; ntries++) { 2000 if (MEM_READ_1(sc, 0x200000) & 1) 2001 break; 2002 DELAY(100); 2003 } 2004 if (ntries == 100) { 2005 aprint_error_dev(sc->sc_dev, 2006 "timeout waiting for ucode to initialize\n"); 2007 return ETIMEDOUT; 2008 } 2009 2010 /* Empty the uc queue or the firmware will not initialize properly */ 2011 for (i = 0; i < 7; i++) 2012 MEM_READ_4(sc, 0x200004); 2013 2014 MEM_WRITE_1(sc, 0x200000, 0x00); 2015 2016 return 0; 2017 } 2018 2019 /* macro to handle unaligned little endian data in firmware image */ 2020 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2021 static int 2022 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2023 { 2024 bus_dmamap_t map; 2025 u_char *p, *end; 2026 uint32_t sentinel, ctl, sum; 2027 uint32_t cs, sl, cd, cl; 2028 int ntries, nsegs, error; 2029 int sn; 2030 2031 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2032 2033 /* Create a DMA map for the firmware image */ 2034 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2035 BUS_DMA_NOWAIT, &map); 2036 if (error != 0) { 2037 aprint_error_dev(sc->sc_dev, 2038 "could not create firmware DMA map\n"); 2039 map = NULL; 2040 goto fail1; 2041 } 2042 2043 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2044 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2045 if (error != 0) { 2046 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2047 error); 2048 goto fail2; 2049 } 2050 2051 /* Make sure the adapter will get up-to-date values */ 2052 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2053 2054 /* Tell the adapter where the command blocks are stored */ 2055 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2056 2057 /* 2058 * Store command blocks into adapter's internal memory using register 2059 * indirections. The adapter will read the firmware image through DMA 2060 * using information stored in command blocks. 2061 */ 2062 p = fw; 2063 end = p + size; 2064 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2065 2066 sn = 0; 2067 sl = cl = 0; 2068 cs = cd = 0; 2069 while (p < end) { 2070 if (sl == 0) { 2071 cs = map->dm_segs[sn].ds_addr; 2072 sl = map->dm_segs[sn].ds_len; 2073 sn++; 2074 } 2075 if (cl == 0) { 2076 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2077 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2078 } 2079 while (sl > 0 && cl > 0) { 2080 int len = min(cl, sl); 2081 2082 sl -= len; 2083 cl -= len; 2084 p += len; 2085 2086 while (len > 0) { 2087 int mlen = min(len, IWI_CB_MAXDATALEN); 2088 2089 ctl = IWI_CB_DEFAULT_CTL | mlen; 2090 sum = ctl ^ cs ^ cd; 2091 2092 /* Write a command block */ 2093 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2094 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2095 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2096 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2097 2098 cs += mlen; 2099 cd += mlen; 2100 len -= mlen; 2101 } 2102 } 2103 } 2104 2105 /* Write a fictive final command block (sentinel) */ 2106 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2107 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2108 2109 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2110 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2111 2112 /* Tell the adapter to start processing command blocks */ 2113 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2114 2115 /* Wait until the adapter has processed all command blocks */ 2116 for (ntries = 0; ntries < 400; ntries++) { 2117 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2118 break; 2119 DELAY(100); 2120 } 2121 if (ntries == 400) { 2122 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2123 error = ETIMEDOUT; 2124 goto fail3; 2125 } 2126 2127 /* We're done with command blocks processing */ 2128 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2129 2130 /* Allow interrupts so we know when the firmware is inited */ 2131 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2132 2133 /* Tell the adapter to initialize the firmware */ 2134 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2135 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2136 IWI_CTL_ALLOW_STANDBY); 2137 2138 /* Wait at most one second for firmware initialization to complete */ 2139 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2140 aprint_error_dev(sc->sc_dev, 2141 "timeout waiting for firmware initialization to complete\n"); 2142 goto fail3; 2143 } 2144 2145 fail3: 2146 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2147 bus_dmamap_unload(sc->sc_dmat, map); 2148 fail2: 2149 if (map != NULL) 2150 bus_dmamap_destroy(sc->sc_dmat, map); 2151 2152 fail1: 2153 return error; 2154 } 2155 2156 /* 2157 * Store firmware into kernel memory so we can download it when we need to, 2158 * e.g when the adapter wakes up from suspend mode. 2159 */ 2160 static int 2161 iwi_cache_firmware(struct iwi_softc *sc) 2162 { 2163 struct iwi_firmware *kfw = &sc->fw; 2164 firmware_handle_t fwh; 2165 struct iwi_firmware_hdr *hdr; 2166 off_t size; 2167 char *fw; 2168 int error; 2169 2170 if (iwi_accept_eula == 0) { 2171 aprint_error_dev(sc->sc_dev, 2172 "EULA not accepted; please see the iwi(4) man page.\n"); 2173 return EPERM; 2174 } 2175 2176 iwi_free_firmware(sc); 2177 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2178 if (error != 0) { 2179 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2180 goto fail1; 2181 } 2182 2183 size = firmware_get_size(fwh); 2184 if (size < sizeof(struct iwi_firmware_hdr)) { 2185 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2186 sc->sc_fwname); 2187 error = EIO; 2188 goto fail1; 2189 } 2190 sc->sc_blobsize = size; 2191 2192 sc->sc_blob = firmware_malloc(size); 2193 if (sc->sc_blob == NULL) { 2194 error = ENOMEM; 2195 firmware_close(fwh); 2196 goto fail1; 2197 } 2198 2199 error = firmware_read(fwh, 0, sc->sc_blob, size); 2200 firmware_close(fwh); 2201 if (error != 0) 2202 goto fail2; 2203 2204 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2205 hdr->version = le32toh(hdr->version); 2206 hdr->bsize = le32toh(hdr->bsize); 2207 hdr->usize = le32toh(hdr->usize); 2208 hdr->fsize = le32toh(hdr->fsize); 2209 2210 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2211 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2212 sc->sc_fwname); 2213 error = EIO; 2214 goto fail2; 2215 } 2216 2217 DPRINTF(("firmware version = %d\n", hdr->version)); 2218 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2219 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2220 aprint_error_dev(sc->sc_dev, 2221 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2222 IWI_FW_GET_MAJOR(hdr->version), 2223 IWI_FW_GET_MINOR(hdr->version), 2224 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2225 error = EIO; 2226 goto fail2; 2227 } 2228 2229 kfw->boot_size = hdr->bsize; 2230 kfw->ucode_size = hdr->usize; 2231 kfw->main_size = hdr->fsize; 2232 2233 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2234 kfw->boot = fw; 2235 fw += kfw->boot_size; 2236 kfw->ucode = fw; 2237 fw += kfw->ucode_size; 2238 kfw->main = fw; 2239 2240 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2241 kfw->boot, kfw->ucode, kfw->main)); 2242 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2243 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2244 2245 sc->flags |= IWI_FLAG_FW_CACHED; 2246 2247 return 0; 2248 2249 2250 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2251 fail1: 2252 return error; 2253 } 2254 2255 static void 2256 iwi_free_firmware(struct iwi_softc *sc) 2257 { 2258 2259 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2260 return; 2261 2262 firmware_free(sc->sc_blob, sc->sc_blobsize); 2263 2264 sc->flags &= ~IWI_FLAG_FW_CACHED; 2265 } 2266 2267 static int 2268 iwi_config(struct iwi_softc *sc) 2269 { 2270 struct ieee80211com *ic = &sc->sc_ic; 2271 struct ifnet *ifp = &sc->sc_if; 2272 struct iwi_configuration config; 2273 struct iwi_rateset rs; 2274 struct iwi_txpower power; 2275 struct ieee80211_key *wk; 2276 struct iwi_wep_key wepkey; 2277 uint32_t data; 2278 int error, nchan, i; 2279 2280 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2281 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2282 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2283 IEEE80211_ADDR_LEN, 0); 2284 if (error != 0) 2285 return error; 2286 2287 memset(&config, 0, sizeof config); 2288 config.bluetooth_coexistence = sc->bluetooth; 2289 config.antenna = sc->antenna; 2290 config.silence_threshold = 0x1e; 2291 config.multicast_enabled = 1; 2292 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2293 config.disable_unicast_decryption = 1; 2294 config.disable_multicast_decryption = 1; 2295 DPRINTF(("Configuring adapter\n")); 2296 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2297 0); 2298 if (error != 0) 2299 return error; 2300 2301 data = htole32(IWI_POWER_MODE_CAM); 2302 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2303 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2304 if (error != 0) 2305 return error; 2306 2307 data = htole32(ic->ic_rtsthreshold); 2308 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2309 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2310 if (error != 0) 2311 return error; 2312 2313 data = htole32(ic->ic_fragthreshold); 2314 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2315 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2316 if (error != 0) 2317 return error; 2318 2319 /* 2320 * Set default Tx power for 802.11b/g and 802.11a channels. 2321 */ 2322 nchan = 0; 2323 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2324 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2325 continue; 2326 power.chan[nchan].chan = i; 2327 power.chan[nchan].power = IWI_TXPOWER_MAX; 2328 nchan++; 2329 } 2330 power.nchan = nchan; 2331 2332 power.mode = IWI_MODE_11G; 2333 DPRINTF(("Setting .11g channels tx power\n")); 2334 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2335 if (error != 0) 2336 return error; 2337 2338 power.mode = IWI_MODE_11B; 2339 DPRINTF(("Setting .11b channels tx power\n")); 2340 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2341 if (error != 0) 2342 return error; 2343 2344 nchan = 0; 2345 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2346 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2347 continue; 2348 power.chan[nchan].chan = i; 2349 power.chan[nchan].power = IWI_TXPOWER_MAX; 2350 nchan++; 2351 } 2352 power.nchan = nchan; 2353 2354 if (nchan > 0) { /* 2915ABG only */ 2355 power.mode = IWI_MODE_11A; 2356 DPRINTF(("Setting .11a channels tx power\n")); 2357 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2358 0); 2359 if (error != 0) 2360 return error; 2361 } 2362 2363 rs.mode = IWI_MODE_11G; 2364 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2365 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2366 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2367 rs.nrates); 2368 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2369 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2370 if (error != 0) 2371 return error; 2372 2373 rs.mode = IWI_MODE_11A; 2374 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2375 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2376 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2377 rs.nrates); 2378 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2379 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2380 if (error != 0) 2381 return error; 2382 2383 /* if we have a desired ESSID, set it now */ 2384 if (ic->ic_des_esslen != 0) { 2385 #ifdef IWI_DEBUG 2386 if (iwi_debug > 0) { 2387 printf("Setting desired ESSID to "); 2388 ieee80211_print_essid(ic->ic_des_essid, 2389 ic->ic_des_esslen); 2390 printf("\n"); 2391 } 2392 #endif 2393 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2394 ic->ic_des_esslen, 0); 2395 if (error != 0) 2396 return error; 2397 } 2398 2399 cprng_fast(&data, sizeof(data)); 2400 data = htole32(data); 2401 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2402 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2403 if (error != 0) 2404 return error; 2405 2406 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2407 /* XXX iwi_setwepkeys? */ 2408 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2409 wk = &ic->ic_crypto.cs_nw_keys[i]; 2410 2411 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2412 wepkey.idx = i; 2413 wepkey.len = wk->wk_keylen; 2414 memset(wepkey.key, 0, sizeof wepkey.key); 2415 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2416 DPRINTF(("Setting wep key index %u len %u\n", 2417 wepkey.idx, wepkey.len)); 2418 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2419 sizeof wepkey, 0); 2420 if (error != 0) 2421 return error; 2422 } 2423 } 2424 2425 /* Enable adapter */ 2426 DPRINTF(("Enabling adapter\n")); 2427 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2428 } 2429 2430 static int 2431 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2432 { 2433 struct ieee80211com *ic = &sc->sc_ic; 2434 struct iwi_scan_v2 scan; 2435 2436 (void)memset(&scan, 0, sizeof scan); 2437 2438 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2439 scan.channels[0] = 1 | 2440 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2441 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2442 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2443 2444 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2445 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2446 } 2447 2448 static int 2449 iwi_scan(struct iwi_softc *sc) 2450 { 2451 struct ieee80211com *ic = &sc->sc_ic; 2452 struct iwi_scan_v2 scan; 2453 uint32_t type; 2454 uint8_t *p; 2455 int i, count, idx; 2456 2457 (void)memset(&scan, 0, sizeof scan); 2458 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2459 htole16(sc->dwelltime); 2460 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2461 htole16(sc->dwelltime); 2462 2463 /* tell the firmware about the desired essid */ 2464 if (ic->ic_des_esslen) { 2465 int error; 2466 2467 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2468 __func__, ic->ic_des_essid)); 2469 2470 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2471 ic->ic_des_essid, ic->ic_des_esslen, 1); 2472 if (error) 2473 return error; 2474 2475 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2476 } else { 2477 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2478 } 2479 2480 p = &scan.channels[0]; 2481 count = idx = 0; 2482 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2483 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2484 isset(ic->ic_chan_active, i)) { 2485 *++p = i; 2486 count++; 2487 idx++; 2488 iwi_scan_type_set(scan, idx, type); 2489 } 2490 } 2491 if (count) { 2492 *(p - count) = IWI_CHAN_5GHZ | count; 2493 p++; 2494 } 2495 2496 count = 0; 2497 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2498 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2499 isset(ic->ic_chan_active, i)) { 2500 *++p = i; 2501 count++; 2502 idx++; 2503 iwi_scan_type_set(scan, idx, type); 2504 } 2505 } 2506 *(p - count) = IWI_CHAN_2GHZ | count; 2507 2508 DPRINTF(("Start scanning\n")); 2509 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2510 } 2511 2512 static int 2513 iwi_auth_and_assoc(struct iwi_softc *sc) 2514 { 2515 struct ieee80211com *ic = &sc->sc_ic; 2516 struct ieee80211_node *ni = ic->ic_bss; 2517 struct ifnet *ifp = &sc->sc_if; 2518 struct ieee80211_wme_info wme; 2519 struct iwi_configuration config; 2520 struct iwi_associate assoc; 2521 struct iwi_rateset rs; 2522 uint16_t capinfo; 2523 uint32_t data; 2524 int error; 2525 2526 memset(&config, 0, sizeof config); 2527 config.bluetooth_coexistence = sc->bluetooth; 2528 config.antenna = sc->antenna; 2529 config.multicast_enabled = 1; 2530 config.silence_threshold = 0x1e; 2531 if (ic->ic_curmode == IEEE80211_MODE_11G) 2532 config.use_protection = 1; 2533 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2534 config.disable_unicast_decryption = 1; 2535 config.disable_multicast_decryption = 1; 2536 2537 DPRINTF(("Configuring adapter\n")); 2538 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2539 sizeof config, 1); 2540 if (error != 0) 2541 return error; 2542 2543 #ifdef IWI_DEBUG 2544 if (iwi_debug > 0) { 2545 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2546 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2547 aprint_debug("\n"); 2548 } 2549 #endif 2550 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2551 if (error != 0) 2552 return error; 2553 2554 /* the rate set has already been "negotiated" */ 2555 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2556 IWI_MODE_11G; 2557 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2558 rs.nrates = ni->ni_rates.rs_nrates; 2559 2560 if (rs.nrates > IWI_RATESET_SIZE) { 2561 DPRINTF(("Truncating negotiated rate set from %u\n", 2562 rs.nrates)); 2563 rs.nrates = IWI_RATESET_SIZE; 2564 } 2565 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2566 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2567 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2568 if (error != 0) 2569 return error; 2570 2571 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2572 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2573 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2574 wme.wme_oui[0] = 0x00; 2575 wme.wme_oui[1] = 0x50; 2576 wme.wme_oui[2] = 0xf2; 2577 wme.wme_type = WME_OUI_TYPE; 2578 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2579 wme.wme_version = WME_VERSION; 2580 wme.wme_info = 0; 2581 2582 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2583 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2584 if (error != 0) 2585 return error; 2586 } 2587 2588 if (ic->ic_opt_ie != NULL) { 2589 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2590 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2591 ic->ic_opt_ie_len, 1); 2592 if (error != 0) 2593 return error; 2594 } 2595 data = htole32(ni->ni_rssi); 2596 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2597 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2598 if (error != 0) 2599 return error; 2600 2601 memset(&assoc, 0, sizeof assoc); 2602 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2603 assoc.mode = IWI_MODE_11A; 2604 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2605 assoc.mode = IWI_MODE_11G; 2606 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2607 assoc.mode = IWI_MODE_11B; 2608 2609 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2610 2611 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2612 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2613 2614 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2615 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2616 2617 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2618 assoc.policy |= htole16(IWI_POLICY_WME); 2619 if (ic->ic_flags & IEEE80211_F_WPA) 2620 assoc.policy |= htole16(IWI_POLICY_WPA); 2621 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2622 assoc.type = IWI_HC_IBSS_START; 2623 else 2624 assoc.type = IWI_HC_ASSOC; 2625 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2626 2627 if (ic->ic_opmode == IEEE80211_M_IBSS) 2628 capinfo = IEEE80211_CAPINFO_IBSS; 2629 else 2630 capinfo = IEEE80211_CAPINFO_ESS; 2631 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2632 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2633 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2634 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2635 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2636 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2637 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2638 assoc.capinfo = htole16(capinfo); 2639 2640 assoc.lintval = htole16(ic->ic_lintval); 2641 assoc.intval = htole16(ni->ni_intval); 2642 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2643 if (ic->ic_opmode == IEEE80211_M_IBSS) 2644 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2645 else 2646 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2647 2648 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2649 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2650 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2651 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2652 assoc.chan, le16toh(assoc.policy), assoc.auth, 2653 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2654 le16toh(assoc.intval))); 2655 2656 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2657 } 2658 2659 static int 2660 iwi_init(struct ifnet *ifp) 2661 { 2662 struct iwi_softc *sc = ifp->if_softc; 2663 struct ieee80211com *ic = &sc->sc_ic; 2664 struct iwi_firmware *fw = &sc->fw; 2665 int i, error; 2666 2667 /* exit immediately if firmware has not been ioctl'd */ 2668 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2669 if ((error = iwi_cache_firmware(sc)) != 0) { 2670 aprint_error_dev(sc->sc_dev, 2671 "could not cache the firmware\n"); 2672 goto fail; 2673 } 2674 } 2675 2676 iwi_stop(ifp, 0); 2677 2678 if ((error = iwi_reset(sc)) != 0) { 2679 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2680 goto fail; 2681 } 2682 2683 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2684 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2685 goto fail; 2686 } 2687 2688 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2689 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2690 goto fail; 2691 } 2692 2693 iwi_stop_master(sc); 2694 2695 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2696 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2697 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2698 2699 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2700 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2701 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2702 2703 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2704 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2705 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2706 2707 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2708 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2709 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2710 2711 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2712 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2713 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2714 2715 for (i = 0; i < sc->rxq.count; i++) 2716 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2717 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2718 2719 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2720 2721 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2722 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2723 goto fail; 2724 } 2725 2726 sc->flags |= IWI_FLAG_FW_INITED; 2727 2728 if ((error = iwi_config(sc)) != 0) { 2729 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2730 goto fail; 2731 } 2732 2733 ic->ic_state = IEEE80211_S_INIT; 2734 2735 ifp->if_flags &= ~IFF_OACTIVE; 2736 ifp->if_flags |= IFF_RUNNING; 2737 2738 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2739 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2740 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2741 } else 2742 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2743 2744 return 0; 2745 2746 fail: ifp->if_flags &= ~IFF_UP; 2747 iwi_stop(ifp, 0); 2748 2749 return error; 2750 } 2751 2752 2753 /* 2754 * Return whether or not the radio is enabled in hardware 2755 * (i.e. the rfkill switch is "off"). 2756 */ 2757 static int 2758 iwi_getrfkill(struct iwi_softc *sc) 2759 { 2760 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2761 } 2762 2763 static int 2764 iwi_sysctl_radio(SYSCTLFN_ARGS) 2765 { 2766 struct sysctlnode node; 2767 struct iwi_softc *sc; 2768 int val, error; 2769 2770 node = *rnode; 2771 sc = (struct iwi_softc *)node.sysctl_data; 2772 2773 val = !iwi_getrfkill(sc); 2774 2775 node.sysctl_data = &val; 2776 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2777 2778 if (error || newp == NULL) 2779 return error; 2780 2781 return 0; 2782 } 2783 2784 #ifdef IWI_DEBUG 2785 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2786 { 2787 int rc; 2788 const struct sysctlnode *rnode; 2789 const struct sysctlnode *cnode; 2790 2791 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2792 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2793 SYSCTL_DESCR("iwi global controls"), 2794 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2795 goto err; 2796 2797 /* control debugging printfs */ 2798 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2799 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2800 "debug", SYSCTL_DESCR("Enable debugging output"), 2801 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2802 goto err; 2803 2804 return; 2805 err: 2806 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2807 } 2808 2809 #endif /* IWI_DEBUG */ 2810 2811 /* 2812 * Add sysctl knobs. 2813 */ 2814 static void 2815 iwi_sysctlattach(struct iwi_softc *sc) 2816 { 2817 int rc; 2818 const struct sysctlnode *rnode; 2819 const struct sysctlnode *cnode; 2820 2821 struct sysctllog **clog = &sc->sc_sysctllog; 2822 2823 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2824 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2825 SYSCTL_DESCR("iwi controls and statistics"), 2826 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2827 goto err; 2828 2829 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2830 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2831 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2832 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2833 goto err; 2834 2835 sc->dwelltime = 100; 2836 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2837 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2838 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2839 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2840 goto err; 2841 2842 sc->bluetooth = 0; 2843 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2844 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2845 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2846 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2847 goto err; 2848 2849 sc->antenna = IWI_ANTENNA_AUTO; 2850 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2851 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2852 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2853 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2854 goto err; 2855 2856 return; 2857 err: 2858 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2859 } 2860 2861 static void 2862 iwi_stop(struct ifnet *ifp, int disable) 2863 { 2864 struct iwi_softc *sc = ifp->if_softc; 2865 struct ieee80211com *ic = &sc->sc_ic; 2866 2867 IWI_LED_OFF(sc); 2868 2869 iwi_stop_master(sc); 2870 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2871 2872 /* reset rings */ 2873 iwi_reset_cmd_ring(sc, &sc->cmdq); 2874 iwi_reset_tx_ring(sc, &sc->txq[0]); 2875 iwi_reset_tx_ring(sc, &sc->txq[1]); 2876 iwi_reset_tx_ring(sc, &sc->txq[2]); 2877 iwi_reset_tx_ring(sc, &sc->txq[3]); 2878 iwi_reset_rx_ring(sc, &sc->rxq); 2879 2880 ifp->if_timer = 0; 2881 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2882 2883 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2884 } 2885 2886 static void 2887 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2888 { 2889 uint32_t val; 2890 2891 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2892 2893 switch (sc->nictype) { 2894 case 1: 2895 /* special NIC type: reversed leds */ 2896 if (state == IWI_LED_ACTIVITY) { 2897 state &= ~IWI_LED_ACTIVITY; 2898 state |= IWI_LED_ASSOCIATED; 2899 } else if (state == IWI_LED_ASSOCIATED) { 2900 state &= ~IWI_LED_ASSOCIATED; 2901 state |= IWI_LED_ACTIVITY; 2902 } 2903 /* and ignore toggle effect */ 2904 val |= state; 2905 break; 2906 case 0: 2907 case 2: 2908 case 3: 2909 case 4: 2910 val = (toggle && (val & state)) ? val & ~state : val | state; 2911 break; 2912 default: 2913 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2914 sc->nictype); 2915 return; 2916 break; 2917 } 2918 2919 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2920 2921 return; 2922 } 2923 2924 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2925 { 2926 const struct sysctlnode *rnode; 2927 const struct sysctlnode *cnode; 2928 2929 sysctl_createv(NULL, 0, NULL, &rnode, 2930 CTLFLAG_PERMANENT, 2931 CTLTYPE_NODE, "iwi", 2932 NULL, 2933 NULL, 0, 2934 NULL, 0, 2935 CTL_HW, CTL_CREATE, CTL_EOL); 2936 2937 sysctl_createv(NULL, 0, &rnode, &cnode, 2938 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2939 CTLTYPE_INT, "accept_eula", 2940 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2941 NULL, 0, 2942 &iwi_accept_eula, sizeof(iwi_accept_eula), 2943 CTL_CREATE, CTL_EOL); 2944 } 2945