1 /* $NetBSD: if_iwi.c,v 1.101 2016/12/08 01:12:01 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 1.101 2016/12/08 01:12:01 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 if_deferred_start_init(ifp, NULL); 359 ieee80211_ifattach(ic); 360 /* override default methods */ 361 ic->ic_node_alloc = iwi_node_alloc; 362 sc->sc_node_free = ic->ic_node_free; 363 ic->ic_node_free = iwi_node_free; 364 /* override state transition machine */ 365 sc->sc_newstate = ic->ic_newstate; 366 ic->ic_newstate = iwi_newstate; 367 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 368 369 /* 370 * Allocate rings. 371 */ 372 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 373 aprint_error_dev(self, "could not allocate command ring\n"); 374 goto fail; 375 } 376 377 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 378 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 379 if (error != 0) { 380 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 381 goto fail; 382 } 383 384 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 385 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 386 if (error != 0) { 387 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 388 goto fail; 389 } 390 391 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 392 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 393 if (error != 0) { 394 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 395 goto fail; 396 } 397 398 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 399 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 400 if (error != 0) { 401 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 402 goto fail; 403 } 404 405 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 406 aprint_error_dev(self, "could not allocate Rx ring\n"); 407 goto fail; 408 } 409 410 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 411 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 412 413 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 414 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 415 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 416 417 sc->sc_txtap_len = sizeof sc->sc_txtapu; 418 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 419 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 420 421 iwi_sysctlattach(sc); 422 423 if (pmf_device_register(self, NULL, NULL)) 424 pmf_class_network_register(self, ifp); 425 else 426 aprint_error_dev(self, "couldn't establish power handler\n"); 427 428 ieee80211_announce(ic); 429 430 return; 431 432 fail: iwi_detach(self, 0); 433 } 434 435 static int 436 iwi_detach(device_t self, int flags) 437 { 438 struct iwi_softc *sc = device_private(self); 439 struct ifnet *ifp = &sc->sc_if; 440 441 pmf_device_deregister(self); 442 443 if (ifp != NULL) 444 iwi_stop(ifp, 1); 445 446 iwi_free_firmware(sc); 447 448 ieee80211_ifdetach(&sc->sc_ic); 449 if (ifp != NULL) 450 if_detach(ifp); 451 452 iwi_free_cmd_ring(sc, &sc->cmdq); 453 iwi_free_tx_ring(sc, &sc->txq[0]); 454 iwi_free_tx_ring(sc, &sc->txq[1]); 455 iwi_free_tx_ring(sc, &sc->txq[2]); 456 iwi_free_tx_ring(sc, &sc->txq[3]); 457 iwi_free_rx_ring(sc, &sc->rxq); 458 459 if (sc->sc_ih != NULL) { 460 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 461 sc->sc_ih = NULL; 462 } 463 464 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 465 466 return 0; 467 } 468 469 static int 470 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 471 int count) 472 { 473 int error, nsegs; 474 475 ring->count = count; 476 ring->queued = 0; 477 ring->cur = ring->next = 0; 478 479 /* 480 * Allocate and map command ring 481 */ 482 error = bus_dmamap_create(sc->sc_dmat, 483 IWI_CMD_DESC_SIZE * count, 1, 484 IWI_CMD_DESC_SIZE * count, 0, 485 BUS_DMA_NOWAIT, &ring->desc_map); 486 if (error != 0) { 487 aprint_error_dev(sc->sc_dev, 488 "could not create command ring DMA map\n"); 489 ring->desc_map = NULL; 490 goto fail; 491 } 492 493 error = bus_dmamem_alloc(sc->sc_dmat, 494 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 495 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 496 if (error != 0) { 497 aprint_error_dev(sc->sc_dev, 498 "could not allocate command ring DMA memory\n"); 499 goto fail; 500 } 501 502 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 503 IWI_CMD_DESC_SIZE * count, 504 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 505 if (error != 0) { 506 aprint_error_dev(sc->sc_dev, 507 "could not map command ring DMA memory\n"); 508 goto fail; 509 } 510 511 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 512 IWI_CMD_DESC_SIZE * count, NULL, 513 BUS_DMA_NOWAIT); 514 if (error != 0) { 515 aprint_error_dev(sc->sc_dev, 516 "could not load command ring DMA map\n"); 517 goto fail; 518 } 519 520 memset(sc->cmdq.desc, 0, 521 IWI_CMD_DESC_SIZE * count); 522 523 return 0; 524 525 fail: return error; 526 } 527 528 static void 529 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 530 { 531 int i; 532 533 for (i = ring->next; i != ring->cur;) { 534 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 535 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 536 BUS_DMASYNC_POSTWRITE); 537 538 wakeup(&ring->desc[i]); 539 i = (i + 1) % ring->count; 540 } 541 542 ring->queued = 0; 543 ring->cur = ring->next = 0; 544 } 545 546 static void 547 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 548 { 549 if (ring->desc_map != NULL) { 550 if (ring->desc != NULL) { 551 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 552 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 553 IWI_CMD_DESC_SIZE * ring->count); 554 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 555 } 556 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 557 } 558 } 559 560 static int 561 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 562 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 563 { 564 int i, error, nsegs; 565 566 ring->count = 0; 567 ring->queued = 0; 568 ring->cur = ring->next = 0; 569 ring->csr_ridx = csr_ridx; 570 ring->csr_widx = csr_widx; 571 572 /* 573 * Allocate and map Tx ring 574 */ 575 error = bus_dmamap_create(sc->sc_dmat, 576 IWI_TX_DESC_SIZE * count, 1, 577 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 578 &ring->desc_map); 579 if (error != 0) { 580 aprint_error_dev(sc->sc_dev, 581 "could not create tx ring DMA map\n"); 582 ring->desc_map = NULL; 583 goto fail; 584 } 585 586 error = bus_dmamem_alloc(sc->sc_dmat, 587 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 588 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 589 if (error != 0) { 590 aprint_error_dev(sc->sc_dev, 591 "could not allocate tx ring DMA memory\n"); 592 goto fail; 593 } 594 595 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 596 IWI_TX_DESC_SIZE * count, 597 (void **)&ring->desc, BUS_DMA_NOWAIT); 598 if (error != 0) { 599 aprint_error_dev(sc->sc_dev, 600 "could not map tx ring DMA memory\n"); 601 goto fail; 602 } 603 604 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 605 IWI_TX_DESC_SIZE * count, NULL, 606 BUS_DMA_NOWAIT); 607 if (error != 0) { 608 aprint_error_dev(sc->sc_dev, 609 "could not load tx ring DMA map\n"); 610 goto fail; 611 } 612 613 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 614 615 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 616 M_NOWAIT | M_ZERO); 617 if (ring->data == NULL) { 618 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 619 error = ENOMEM; 620 goto fail; 621 } 622 ring->count = count; 623 624 /* 625 * Allocate Tx buffers DMA maps 626 */ 627 for (i = 0; i < count; i++) { 628 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 629 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 630 if (error != 0) { 631 aprint_error_dev(sc->sc_dev, 632 "could not create tx buf DMA map"); 633 ring->data[i].map = NULL; 634 goto fail; 635 } 636 } 637 return 0; 638 639 fail: return error; 640 } 641 642 static void 643 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 644 { 645 struct iwi_tx_data *data; 646 int i; 647 648 for (i = 0; i < ring->count; i++) { 649 data = &ring->data[i]; 650 651 if (data->m != NULL) { 652 m_freem(data->m); 653 data->m = NULL; 654 } 655 656 if (data->map != NULL) { 657 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 658 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 659 bus_dmamap_unload(sc->sc_dmat, data->map); 660 } 661 662 if (data->ni != NULL) { 663 ieee80211_free_node(data->ni); 664 data->ni = NULL; 665 } 666 } 667 668 ring->queued = 0; 669 ring->cur = ring->next = 0; 670 } 671 672 static void 673 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 674 { 675 int i; 676 struct iwi_tx_data *data; 677 678 if (ring->desc_map != NULL) { 679 if (ring->desc != NULL) { 680 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 681 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 682 IWI_TX_DESC_SIZE * ring->count); 683 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 684 } 685 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 686 } 687 688 for (i = 0; i < ring->count; i++) { 689 data = &ring->data[i]; 690 691 if (data->m != NULL) { 692 m_freem(data->m); 693 } 694 695 if (data->map != NULL) { 696 bus_dmamap_unload(sc->sc_dmat, data->map); 697 bus_dmamap_destroy(sc->sc_dmat, data->map); 698 } 699 } 700 } 701 702 static int 703 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 704 { 705 int i, error; 706 707 ring->count = 0; 708 ring->cur = 0; 709 710 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 711 M_NOWAIT | M_ZERO); 712 if (ring->data == NULL) { 713 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 714 error = ENOMEM; 715 goto fail; 716 } 717 718 ring->count = count; 719 720 /* 721 * Allocate and map Rx buffers 722 */ 723 for (i = 0; i < count; i++) { 724 725 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 726 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 727 if (error != 0) { 728 aprint_error_dev(sc->sc_dev, 729 "could not create rx buf DMA map"); 730 ring->data[i].map = NULL; 731 goto fail; 732 } 733 734 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 735 error = ENOMEM; 736 goto fail; 737 } 738 739 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 740 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 741 if (error != 0) { 742 aprint_error_dev(sc->sc_dev, 743 "could not load rx buffer DMA map\n"); 744 goto fail; 745 } 746 747 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 748 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 749 } 750 751 return 0; 752 753 fail: return error; 754 } 755 756 static void 757 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 758 { 759 ring->cur = 0; 760 } 761 762 static void 763 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 764 { 765 int i; 766 struct iwi_rx_data *data; 767 768 for (i = 0; i < ring->count; i++) { 769 data = &ring->data[i]; 770 771 if (data->m != NULL) { 772 m_freem(data->m); 773 } 774 775 if (data->map != NULL) { 776 bus_dmamap_unload(sc->sc_dmat, data->map); 777 bus_dmamap_destroy(sc->sc_dmat, data->map); 778 } 779 780 } 781 } 782 783 static struct ieee80211_node * 784 iwi_node_alloc(struct ieee80211_node_table *nt) 785 { 786 struct iwi_node *in; 787 788 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 789 if (in == NULL) 790 return NULL; 791 792 in->in_station = -1; 793 794 return &in->in_node; 795 } 796 797 static int 798 iwi_alloc_unr(struct iwi_softc *sc) 799 { 800 int i; 801 802 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 803 if ((sc->sc_unr & (1 << i)) == 0) { 804 sc->sc_unr |= 1 << i; 805 return i; 806 } 807 808 return -1; 809 } 810 811 static void 812 iwi_free_unr(struct iwi_softc *sc, int r) 813 { 814 815 sc->sc_unr &= 1 << r; 816 } 817 818 static void 819 iwi_node_free(struct ieee80211_node *ni) 820 { 821 struct ieee80211com *ic = ni->ni_ic; 822 struct iwi_softc *sc = ic->ic_ifp->if_softc; 823 struct iwi_node *in = (struct iwi_node *)ni; 824 825 if (in->in_station != -1) 826 iwi_free_unr(sc, in->in_station); 827 828 sc->sc_node_free(ni); 829 } 830 831 static int 832 iwi_media_change(struct ifnet *ifp) 833 { 834 int error; 835 836 error = ieee80211_media_change(ifp); 837 if (error != ENETRESET) 838 return error; 839 840 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 841 iwi_init(ifp); 842 843 return 0; 844 } 845 846 /* 847 * Convert h/w rate code to IEEE rate code. 848 */ 849 static int 850 iwi_cvtrate(int iwirate) 851 { 852 switch (iwirate) { 853 case IWI_RATE_DS1: return 2; 854 case IWI_RATE_DS2: return 4; 855 case IWI_RATE_DS5: return 11; 856 case IWI_RATE_DS11: return 22; 857 case IWI_RATE_OFDM6: return 12; 858 case IWI_RATE_OFDM9: return 18; 859 case IWI_RATE_OFDM12: return 24; 860 case IWI_RATE_OFDM18: return 36; 861 case IWI_RATE_OFDM24: return 48; 862 case IWI_RATE_OFDM36: return 72; 863 case IWI_RATE_OFDM48: return 96; 864 case IWI_RATE_OFDM54: return 108; 865 } 866 return 0; 867 } 868 869 /* 870 * The firmware automatically adapts the transmit speed. We report its current 871 * value here. 872 */ 873 static void 874 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 875 { 876 struct iwi_softc *sc = ifp->if_softc; 877 struct ieee80211com *ic = &sc->sc_ic; 878 int rate; 879 880 imr->ifm_status = IFM_AVALID; 881 imr->ifm_active = IFM_IEEE80211; 882 if (ic->ic_state == IEEE80211_S_RUN) 883 imr->ifm_status |= IFM_ACTIVE; 884 885 /* read current transmission rate from adapter */ 886 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 887 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 888 889 switch (ic->ic_opmode) { 890 case IEEE80211_M_STA: 891 break; 892 893 case IEEE80211_M_IBSS: 894 imr->ifm_active |= IFM_IEEE80211_ADHOC; 895 break; 896 897 case IEEE80211_M_MONITOR: 898 imr->ifm_active |= IFM_IEEE80211_MONITOR; 899 break; 900 901 case IEEE80211_M_AHDEMO: 902 case IEEE80211_M_HOSTAP: 903 /* should not get there */ 904 break; 905 } 906 } 907 908 static int 909 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 910 { 911 struct iwi_softc *sc = ic->ic_ifp->if_softc; 912 913 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 914 ieee80211_state_name[ic->ic_state], 915 ieee80211_state_name[nstate], sc->flags)); 916 917 switch (nstate) { 918 case IEEE80211_S_SCAN: 919 if (sc->flags & IWI_FLAG_SCANNING) 920 break; 921 922 ieee80211_node_table_reset(&ic->ic_scan); 923 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 924 sc->flags |= IWI_FLAG_SCANNING; 925 /* blink the led while scanning */ 926 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 927 iwi_scan(sc); 928 break; 929 930 case IEEE80211_S_AUTH: 931 iwi_auth_and_assoc(sc); 932 break; 933 934 case IEEE80211_S_RUN: 935 if (ic->ic_opmode == IEEE80211_M_IBSS && 936 ic->ic_state == IEEE80211_S_SCAN) 937 iwi_auth_and_assoc(sc); 938 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 939 iwi_set_chan(sc, ic->ic_ibss_chan); 940 break; 941 case IEEE80211_S_ASSOC: 942 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 943 if (ic->ic_state == IEEE80211_S_AUTH) 944 break; 945 iwi_auth_and_assoc(sc); 946 break; 947 948 case IEEE80211_S_INIT: 949 sc->flags &= ~IWI_FLAG_SCANNING; 950 break; 951 } 952 953 return sc->sc_newstate(ic, nstate, arg); 954 } 955 956 /* 957 * WME parameters coming from IEEE 802.11e specification. These values are 958 * already declared in ieee80211_proto.c, but they are static so they can't 959 * be reused here. 960 */ 961 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 962 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 963 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 964 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 965 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 966 }; 967 968 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 969 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 970 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 971 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 972 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 973 }; 974 975 static int 976 iwi_wme_update(struct ieee80211com *ic) 977 { 978 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 979 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 980 struct iwi_softc *sc = ic->ic_ifp->if_softc; 981 struct iwi_wme_params wme[3]; 982 const struct wmeParams *wmep; 983 int ac; 984 985 /* 986 * We shall not override firmware default WME values if WME is not 987 * actually enabled. 988 */ 989 if (!(ic->ic_flags & IEEE80211_F_WME)) 990 return 0; 991 992 for (ac = 0; ac < WME_NUM_AC; ac++) { 993 /* set WME values for current operating mode */ 994 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 995 wme[0].aifsn[ac] = wmep->wmep_aifsn; 996 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 997 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 998 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 999 wme[0].acm[ac] = wmep->wmep_acm; 1000 1001 /* set WME values for CCK modulation */ 1002 wmep = &iwi_wme_cck_params[ac]; 1003 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1004 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1005 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1006 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1007 wme[1].acm[ac] = wmep->wmep_acm; 1008 1009 /* set WME values for OFDM modulation */ 1010 wmep = &iwi_wme_ofdm_params[ac]; 1011 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1012 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1013 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1014 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1015 wme[2].acm[ac] = wmep->wmep_acm; 1016 } 1017 1018 DPRINTF(("Setting WME parameters\n")); 1019 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1020 #undef IWI_USEC 1021 #undef IWI_EXP2 1022 } 1023 1024 /* 1025 * Read 16 bits at address 'addr' from the serial EEPROM. 1026 */ 1027 static uint16_t 1028 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1029 { 1030 uint32_t tmp; 1031 uint16_t val; 1032 int n; 1033 1034 /* Clock C once before the first command */ 1035 IWI_EEPROM_CTL(sc, 0); 1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1037 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1038 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1039 1040 /* Write start bit (1) */ 1041 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1042 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1043 1044 /* Write READ opcode (10) */ 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1048 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1049 1050 /* Write address A7-A0 */ 1051 for (n = 7; n >= 0; n--) { 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1053 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1054 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1055 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1056 } 1057 1058 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1059 1060 /* Read data Q15-Q0 */ 1061 val = 0; 1062 for (n = 15; n >= 0; n--) { 1063 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1064 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1065 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1066 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1067 } 1068 1069 IWI_EEPROM_CTL(sc, 0); 1070 1071 /* Clear Chip Select and clock C */ 1072 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1073 IWI_EEPROM_CTL(sc, 0); 1074 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1075 1076 return val; 1077 } 1078 1079 /* 1080 * XXX: Hack to set the current channel to the value advertised in beacons or 1081 * probe responses. Only used during AP detection. 1082 */ 1083 static void 1084 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1085 { 1086 struct ieee80211_frame *wh; 1087 uint8_t subtype; 1088 uint8_t *frm, *efrm; 1089 1090 wh = mtod(m, struct ieee80211_frame *); 1091 1092 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1093 return; 1094 1095 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1096 1097 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1098 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1099 return; 1100 1101 frm = (uint8_t *)(wh + 1); 1102 efrm = mtod(m, uint8_t *) + m->m_len; 1103 1104 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1105 while (frm < efrm) { 1106 if (*frm == IEEE80211_ELEMID_DSPARMS) 1107 #if IEEE80211_CHAN_MAX < 255 1108 if (frm[2] <= IEEE80211_CHAN_MAX) 1109 #endif 1110 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1111 1112 frm += frm[1] + 2; 1113 } 1114 } 1115 1116 static struct mbuf * 1117 iwi_alloc_rx_buf(struct iwi_softc *sc) 1118 { 1119 struct mbuf *m; 1120 1121 MGETHDR(m, M_DONTWAIT, MT_DATA); 1122 if (m == NULL) { 1123 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1124 return NULL; 1125 } 1126 1127 MCLGET(m, M_DONTWAIT); 1128 if (!(m->m_flags & M_EXT)) { 1129 aprint_error_dev(sc->sc_dev, 1130 "could not allocate rx mbuf cluster\n"); 1131 m_freem(m); 1132 return NULL; 1133 } 1134 1135 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1136 return m; 1137 } 1138 1139 static void 1140 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1141 struct iwi_frame *frame) 1142 { 1143 struct ieee80211com *ic = &sc->sc_ic; 1144 struct ifnet *ifp = ic->ic_ifp; 1145 struct mbuf *m, *m_new; 1146 struct ieee80211_frame *wh; 1147 struct ieee80211_node *ni; 1148 int error; 1149 1150 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1151 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1152 1153 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1154 le16toh(frame->len) > MCLBYTES) { 1155 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1156 ifp->if_ierrors++; 1157 return; 1158 } 1159 1160 /* 1161 * Try to allocate a new mbuf for this ring element and 1162 * load it before processing the current mbuf. If the ring 1163 * element cannot be reloaded, drop the received packet 1164 * and reuse the old mbuf. In the unlikely case that 1165 * the old mbuf can't be reloaded either, explicitly panic. 1166 * 1167 * XXX Reorganize buffer by moving elements from the logical 1168 * end of the ring to the front instead of dropping. 1169 */ 1170 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1171 ifp->if_ierrors++; 1172 return; 1173 } 1174 1175 bus_dmamap_unload(sc->sc_dmat, data->map); 1176 1177 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1178 BUS_DMA_READ | BUS_DMA_NOWAIT); 1179 if (error != 0) { 1180 aprint_error_dev(sc->sc_dev, 1181 "could not load rx buf DMA map\n"); 1182 m_freem(m_new); 1183 ifp->if_ierrors++; 1184 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1185 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1186 if (error) 1187 panic("%s: unable to remap rx buf", 1188 device_xname(sc->sc_dev)); 1189 return; 1190 } 1191 1192 /* 1193 * New mbuf successfully loaded, update RX ring and continue 1194 * processing. 1195 */ 1196 m = data->m; 1197 data->m = m_new; 1198 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1199 1200 /* Finalize mbuf */ 1201 m_set_rcvif(m, ifp); 1202 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1203 sizeof (struct iwi_frame) + le16toh(frame->len); 1204 1205 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1206 1207 if (ic->ic_state == IEEE80211_S_SCAN) 1208 iwi_fix_channel(ic, m); 1209 1210 if (sc->sc_drvbpf != NULL) { 1211 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1212 1213 tap->wr_flags = 0; 1214 tap->wr_rate = iwi_cvtrate(frame->rate); 1215 tap->wr_chan_freq = 1216 htole16(ic->ic_channels[frame->chan].ic_freq); 1217 tap->wr_chan_flags = 1218 htole16(ic->ic_channels[frame->chan].ic_flags); 1219 tap->wr_antsignal = frame->signal; 1220 tap->wr_antenna = frame->antenna; 1221 1222 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1223 } 1224 wh = mtod(m, struct ieee80211_frame *); 1225 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1226 1227 /* Send the frame to the upper layer */ 1228 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1229 1230 /* node is no longer needed */ 1231 ieee80211_free_node(ni); 1232 } 1233 1234 static void 1235 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1236 { 1237 struct ieee80211com *ic = &sc->sc_ic; 1238 struct iwi_notif_authentication *auth; 1239 struct iwi_notif_association *assoc; 1240 struct iwi_notif_beacon_state *beacon; 1241 1242 switch (notif->type) { 1243 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1244 #ifdef IWI_DEBUG 1245 { 1246 struct iwi_notif_scan_channel *chan = 1247 (struct iwi_notif_scan_channel *)(notif + 1); 1248 1249 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1250 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1251 } 1252 #endif 1253 break; 1254 1255 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1256 #ifdef IWI_DEBUG 1257 { 1258 struct iwi_notif_scan_complete *scan = 1259 (struct iwi_notif_scan_complete *)(notif + 1); 1260 1261 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1262 scan->status)); 1263 } 1264 #endif 1265 1266 /* monitor mode uses scan to set the channel ... */ 1267 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1268 sc->flags &= ~IWI_FLAG_SCANNING; 1269 ieee80211_end_scan(ic); 1270 } else 1271 iwi_set_chan(sc, ic->ic_ibss_chan); 1272 break; 1273 1274 case IWI_NOTIF_TYPE_AUTHENTICATION: 1275 auth = (struct iwi_notif_authentication *)(notif + 1); 1276 1277 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1278 1279 switch (auth->state) { 1280 case IWI_AUTH_SUCCESS: 1281 ieee80211_node_authorize(ic->ic_bss); 1282 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1283 break; 1284 1285 case IWI_AUTH_FAIL: 1286 break; 1287 1288 case IWI_AUTH_SENT_1: 1289 case IWI_AUTH_RECV_2: 1290 case IWI_AUTH_SEQ1_PASS: 1291 break; 1292 1293 case IWI_AUTH_SEQ1_FAIL: 1294 break; 1295 1296 default: 1297 aprint_error_dev(sc->sc_dev, 1298 "unknown authentication state %u\n", auth->state); 1299 } 1300 break; 1301 1302 case IWI_NOTIF_TYPE_ASSOCIATION: 1303 assoc = (struct iwi_notif_association *)(notif + 1); 1304 1305 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1306 assoc->status)); 1307 1308 switch (assoc->state) { 1309 case IWI_AUTH_SUCCESS: 1310 /* re-association, do nothing */ 1311 break; 1312 1313 case IWI_ASSOC_SUCCESS: 1314 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1315 break; 1316 1317 case IWI_ASSOC_FAIL: 1318 ieee80211_begin_scan(ic, 1); 1319 break; 1320 1321 default: 1322 aprint_error_dev(sc->sc_dev, 1323 "unknown association state %u\n", assoc->state); 1324 } 1325 break; 1326 1327 case IWI_NOTIF_TYPE_BEACON: 1328 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1329 1330 if (beacon->state == IWI_BEACON_MISS) { 1331 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1332 device_xname(sc->sc_dev), le32toh(beacon->number))); 1333 } 1334 break; 1335 1336 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1337 case IWI_NOTIF_TYPE_LINK_QUALITY: 1338 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1339 case IWI_NOTIF_TYPE_CALIBRATION: 1340 case IWI_NOTIF_TYPE_NOISE: 1341 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1342 break; 1343 1344 default: 1345 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1346 device_xname(sc->sc_dev), notif->type, notif->flags, 1347 le16toh(notif->len))); 1348 } 1349 } 1350 1351 static void 1352 iwi_cmd_intr(struct iwi_softc *sc) 1353 { 1354 1355 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1356 1357 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1358 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1359 BUS_DMASYNC_POSTWRITE); 1360 1361 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1362 1363 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1364 1365 if (--sc->cmdq.queued > 0) { 1366 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1367 } 1368 } 1369 1370 static void 1371 iwi_rx_intr(struct iwi_softc *sc) 1372 { 1373 struct iwi_rx_data *data; 1374 struct iwi_hdr *hdr; 1375 uint32_t hw; 1376 1377 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1378 1379 for (; sc->rxq.cur != hw;) { 1380 data = &sc->rxq.data[sc->rxq.cur]; 1381 1382 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1383 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1384 1385 hdr = mtod(data->m, struct iwi_hdr *); 1386 1387 switch (hdr->type) { 1388 case IWI_HDR_TYPE_FRAME: 1389 iwi_frame_intr(sc, data, sc->rxq.cur, 1390 (struct iwi_frame *)(hdr + 1)); 1391 break; 1392 1393 case IWI_HDR_TYPE_NOTIF: 1394 iwi_notification_intr(sc, 1395 (struct iwi_notif *)(hdr + 1)); 1396 break; 1397 1398 default: 1399 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1400 hdr->type); 1401 } 1402 1403 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1404 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1405 1406 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1407 1408 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1409 } 1410 1411 /* Tell the firmware what we have processed */ 1412 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1413 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1414 } 1415 1416 static void 1417 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1418 { 1419 struct ifnet *ifp = &sc->sc_if; 1420 struct iwi_tx_data *data; 1421 uint32_t hw; 1422 1423 hw = CSR_READ_4(sc, txq->csr_ridx); 1424 1425 for (; txq->next != hw;) { 1426 data = &txq->data[txq->next]; 1427 1428 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1429 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1430 bus_dmamap_unload(sc->sc_dmat, data->map); 1431 m_freem(data->m); 1432 data->m = NULL; 1433 ieee80211_free_node(data->ni); 1434 data->ni = NULL; 1435 1436 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1437 1438 ifp->if_opackets++; 1439 1440 txq->queued--; 1441 txq->next = (txq->next + 1) % txq->count; 1442 } 1443 1444 sc->sc_tx_timer = 0; 1445 ifp->if_flags &= ~IFF_OACTIVE; 1446 1447 /* Call start() since some buffer descriptors have been released */ 1448 if_schedule_deferred_start(ifp); 1449 } 1450 1451 static int 1452 iwi_intr(void *arg) 1453 { 1454 struct iwi_softc *sc = arg; 1455 uint32_t r; 1456 1457 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1458 return 0; 1459 1460 /* Acknowledge interrupts */ 1461 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1462 1463 if (r & IWI_INTR_FATAL_ERROR) { 1464 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1465 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1466 iwi_stop(&sc->sc_if, 1); 1467 return (1); 1468 } 1469 1470 if (r & IWI_INTR_FW_INITED) { 1471 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1472 wakeup(sc); 1473 } 1474 1475 if (r & IWI_INTR_RADIO_OFF) { 1476 DPRINTF(("radio transmitter off\n")); 1477 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1478 iwi_stop(&sc->sc_if, 1); 1479 return (1); 1480 } 1481 1482 if (r & IWI_INTR_CMD_DONE) 1483 iwi_cmd_intr(sc); 1484 1485 if (r & IWI_INTR_TX1_DONE) 1486 iwi_tx_intr(sc, &sc->txq[0]); 1487 1488 if (r & IWI_INTR_TX2_DONE) 1489 iwi_tx_intr(sc, &sc->txq[1]); 1490 1491 if (r & IWI_INTR_TX3_DONE) 1492 iwi_tx_intr(sc, &sc->txq[2]); 1493 1494 if (r & IWI_INTR_TX4_DONE) 1495 iwi_tx_intr(sc, &sc->txq[3]); 1496 1497 if (r & IWI_INTR_RX_DONE) 1498 iwi_rx_intr(sc); 1499 1500 if (r & IWI_INTR_PARITY_ERROR) 1501 aprint_error_dev(sc->sc_dev, "parity error\n"); 1502 1503 return 1; 1504 } 1505 1506 static int 1507 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1508 int async) 1509 { 1510 struct iwi_cmd_desc *desc; 1511 1512 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1513 1514 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1515 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1516 desc->type = type; 1517 desc->len = len; 1518 memcpy(desc->data, data, len); 1519 1520 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1521 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1522 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1523 1524 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1525 sc->cmdq.cur, type, len, async)); 1526 1527 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1528 1529 if (++sc->cmdq.queued == 1) 1530 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1531 1532 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1533 } 1534 1535 static void 1536 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1537 { 1538 struct iwi_ibssnode node; 1539 1540 /* write node information into NIC memory */ 1541 memset(&node, 0, sizeof node); 1542 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1543 1544 CSR_WRITE_REGION_1(sc, 1545 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1546 (uint8_t *)&node, sizeof node); 1547 } 1548 1549 static int 1550 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1551 int ac) 1552 { 1553 struct iwi_softc *sc = ifp->if_softc; 1554 struct ieee80211com *ic = &sc->sc_ic; 1555 struct iwi_node *in = (struct iwi_node *)ni; 1556 struct ieee80211_frame *wh; 1557 struct ieee80211_key *k; 1558 const struct chanAccParams *cap; 1559 struct iwi_tx_ring *txq = &sc->txq[ac]; 1560 struct iwi_tx_data *data; 1561 struct iwi_tx_desc *desc; 1562 struct mbuf *mnew; 1563 int error, hdrlen, i, noack = 0; 1564 1565 wh = mtod(m0, struct ieee80211_frame *); 1566 1567 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1568 hdrlen = sizeof (struct ieee80211_qosframe); 1569 cap = &ic->ic_wme.wme_chanParams; 1570 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1571 } else 1572 hdrlen = sizeof (struct ieee80211_frame); 1573 1574 /* 1575 * This is only used in IBSS mode where the firmware expect an index 1576 * in a h/w table instead of a destination address. 1577 */ 1578 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1579 in->in_station = iwi_alloc_unr(sc); 1580 1581 if (in->in_station == -1) { /* h/w table is full */ 1582 m_freem(m0); 1583 ieee80211_free_node(ni); 1584 ifp->if_oerrors++; 1585 return 0; 1586 } 1587 iwi_write_ibssnode(sc, in); 1588 } 1589 1590 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1591 k = ieee80211_crypto_encap(ic, ni, m0); 1592 if (k == NULL) { 1593 m_freem(m0); 1594 return ENOBUFS; 1595 } 1596 1597 /* packet header may have moved, reset our local pointer */ 1598 wh = mtod(m0, struct ieee80211_frame *); 1599 } 1600 1601 if (sc->sc_drvbpf != NULL) { 1602 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1603 1604 tap->wt_flags = 0; 1605 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1606 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1607 1608 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1609 } 1610 1611 data = &txq->data[txq->cur]; 1612 desc = &txq->desc[txq->cur]; 1613 1614 /* save and trim IEEE802.11 header */ 1615 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1616 m_adj(m0, hdrlen); 1617 1618 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1619 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1620 if (error != 0 && error != EFBIG) { 1621 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1622 error); 1623 m_freem(m0); 1624 return error; 1625 } 1626 if (error != 0) { 1627 /* too many fragments, linearize */ 1628 1629 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1630 if (mnew == NULL) { 1631 m_freem(m0); 1632 return ENOMEM; 1633 } 1634 1635 M_COPY_PKTHDR(mnew, m0); 1636 1637 /* If the data won't fit in the header, get a cluster */ 1638 if (m0->m_pkthdr.len > MHLEN) { 1639 MCLGET(mnew, M_DONTWAIT); 1640 if (!(mnew->m_flags & M_EXT)) { 1641 m_freem(m0); 1642 m_freem(mnew); 1643 return ENOMEM; 1644 } 1645 } 1646 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1647 m_freem(m0); 1648 mnew->m_len = mnew->m_pkthdr.len; 1649 m0 = mnew; 1650 1651 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1652 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1653 if (error != 0) { 1654 aprint_error_dev(sc->sc_dev, 1655 "could not map mbuf (error %d)\n", error); 1656 m_freem(m0); 1657 return error; 1658 } 1659 } 1660 1661 data->m = m0; 1662 data->ni = ni; 1663 1664 desc->hdr.type = IWI_HDR_TYPE_DATA; 1665 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1666 desc->station = 1667 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1668 desc->cmd = IWI_DATA_CMD_TX; 1669 desc->len = htole16(m0->m_pkthdr.len); 1670 desc->flags = 0; 1671 desc->xflags = 0; 1672 1673 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1674 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1675 1676 #if 0 1677 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1678 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1679 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1680 } else 1681 #endif 1682 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1683 1684 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1685 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1686 1687 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1688 desc->xflags |= IWI_DATA_XFLAG_QOS; 1689 1690 if (ic->ic_curmode == IEEE80211_MODE_11B) 1691 desc->xflags |= IWI_DATA_XFLAG_CCK; 1692 1693 desc->nseg = htole32(data->map->dm_nsegs); 1694 for (i = 0; i < data->map->dm_nsegs; i++) { 1695 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1696 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1697 } 1698 1699 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1700 txq->cur * IWI_TX_DESC_SIZE, 1701 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1702 1703 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1704 BUS_DMASYNC_PREWRITE); 1705 1706 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1707 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1708 1709 /* Inform firmware about this new packet */ 1710 txq->queued++; 1711 txq->cur = (txq->cur + 1) % txq->count; 1712 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1713 1714 return 0; 1715 } 1716 1717 static void 1718 iwi_start(struct ifnet *ifp) 1719 { 1720 struct iwi_softc *sc = ifp->if_softc; 1721 struct ieee80211com *ic = &sc->sc_ic; 1722 struct mbuf *m0; 1723 struct ether_header *eh; 1724 struct ieee80211_node *ni; 1725 int ac; 1726 1727 if (ic->ic_state != IEEE80211_S_RUN) 1728 return; 1729 1730 for (;;) { 1731 IF_DEQUEUE(&ifp->if_snd, m0); 1732 if (m0 == NULL) 1733 break; 1734 1735 if (m0->m_len < sizeof (struct ether_header) && 1736 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1737 ifp->if_oerrors++; 1738 continue; 1739 } 1740 1741 eh = mtod(m0, struct ether_header *); 1742 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1743 if (ni == NULL) { 1744 m_freem(m0); 1745 ifp->if_oerrors++; 1746 continue; 1747 } 1748 1749 /* classify mbuf so we can find which tx ring to use */ 1750 if (ieee80211_classify(ic, m0, ni) != 0) { 1751 m_freem(m0); 1752 ieee80211_free_node(ni); 1753 ifp->if_oerrors++; 1754 continue; 1755 } 1756 1757 /* no QoS encapsulation for EAPOL frames */ 1758 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1759 M_WME_GETAC(m0) : WME_AC_BE; 1760 1761 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1762 /* there is no place left in this ring */ 1763 IF_PREPEND(&ifp->if_snd, m0); 1764 ifp->if_flags |= IFF_OACTIVE; 1765 break; 1766 } 1767 1768 bpf_mtap(ifp, m0); 1769 1770 m0 = ieee80211_encap(ic, m0, ni); 1771 if (m0 == NULL) { 1772 ieee80211_free_node(ni); 1773 ifp->if_oerrors++; 1774 continue; 1775 } 1776 1777 bpf_mtap3(ic->ic_rawbpf, m0); 1778 1779 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1780 ieee80211_free_node(ni); 1781 ifp->if_oerrors++; 1782 break; 1783 } 1784 1785 /* start watchdog timer */ 1786 sc->sc_tx_timer = 5; 1787 ifp->if_timer = 1; 1788 } 1789 } 1790 1791 static void 1792 iwi_watchdog(struct ifnet *ifp) 1793 { 1794 struct iwi_softc *sc = ifp->if_softc; 1795 1796 ifp->if_timer = 0; 1797 1798 if (sc->sc_tx_timer > 0) { 1799 if (--sc->sc_tx_timer == 0) { 1800 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1801 ifp->if_oerrors++; 1802 ifp->if_flags &= ~IFF_UP; 1803 iwi_stop(ifp, 1); 1804 return; 1805 } 1806 ifp->if_timer = 1; 1807 } 1808 1809 ieee80211_watchdog(&sc->sc_ic); 1810 } 1811 1812 static int 1813 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1814 { 1815 uint32_t size, buf[128]; 1816 1817 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1818 memset(buf, 0, sizeof buf); 1819 return copyout(buf, tbl, sizeof buf); 1820 } 1821 1822 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1823 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1824 1825 return copyout(buf, tbl, sizeof buf); 1826 } 1827 1828 static int 1829 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1830 { 1831 #define IS_RUNNING(ifp) \ 1832 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1833 1834 struct iwi_softc *sc = ifp->if_softc; 1835 struct ieee80211com *ic = &sc->sc_ic; 1836 struct ifreq *ifr = (struct ifreq *)data; 1837 int s, error = 0; 1838 int val; 1839 1840 s = splnet(); 1841 1842 switch (cmd) { 1843 case SIOCSIFFLAGS: 1844 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1845 break; 1846 if (ifp->if_flags & IFF_UP) { 1847 if (!(ifp->if_flags & IFF_RUNNING)) 1848 iwi_init(ifp); 1849 } else { 1850 if (ifp->if_flags & IFF_RUNNING) 1851 iwi_stop(ifp, 1); 1852 } 1853 break; 1854 1855 case SIOCADDMULTI: 1856 case SIOCDELMULTI: 1857 /* XXX no h/w multicast filter? --dyoung */ 1858 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1859 /* setup multicast filter, etc */ 1860 error = 0; 1861 } 1862 break; 1863 1864 case SIOCGTABLE0: 1865 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1866 break; 1867 1868 case SIOCGRADIO: 1869 val = !iwi_getrfkill(sc); 1870 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1871 break; 1872 1873 case SIOCSIFMEDIA: 1874 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1875 sc->sc_fwname = "ipw2200-ibss.fw"; 1876 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1877 sc->sc_fwname = "ipw2200-sniffer.fw"; 1878 } else { 1879 sc->sc_fwname = "ipw2200-bss.fw"; 1880 } 1881 error = iwi_cache_firmware(sc); 1882 if (error) 1883 break; 1884 /* FALLTRHOUGH */ 1885 1886 default: 1887 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1888 1889 if (error == ENETRESET) { 1890 if (IS_RUNNING(ifp) && 1891 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1892 iwi_init(ifp); 1893 error = 0; 1894 } 1895 } 1896 1897 splx(s); 1898 return error; 1899 #undef IS_RUNNING 1900 } 1901 1902 static void 1903 iwi_stop_master(struct iwi_softc *sc) 1904 { 1905 int ntries; 1906 1907 /* Disable interrupts */ 1908 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1909 1910 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1911 for (ntries = 0; ntries < 5; ntries++) { 1912 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1913 break; 1914 DELAY(10); 1915 } 1916 if (ntries == 5) 1917 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1918 1919 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1920 IWI_RST_PRINCETON_RESET); 1921 1922 sc->flags &= ~IWI_FLAG_FW_INITED; 1923 } 1924 1925 static int 1926 iwi_reset(struct iwi_softc *sc) 1927 { 1928 int i, ntries; 1929 1930 iwi_stop_master(sc); 1931 1932 /* Move adapter to D0 state */ 1933 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1934 IWI_CTL_INIT); 1935 1936 /* Initialize Phase-Locked Level (PLL) */ 1937 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1938 1939 /* Wait for clock stabilization */ 1940 for (ntries = 0; ntries < 1000; ntries++) { 1941 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1942 break; 1943 DELAY(200); 1944 } 1945 if (ntries == 1000) { 1946 aprint_error_dev(sc->sc_dev, 1947 "timeout waiting for clock stabilization\n"); 1948 return ETIMEDOUT; 1949 } 1950 1951 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1952 IWI_RST_SW_RESET); 1953 1954 DELAY(10); 1955 1956 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1957 IWI_CTL_INIT); 1958 1959 /* Clear NIC memory */ 1960 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1961 for (i = 0; i < 0xc000; i++) 1962 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1963 1964 return 0; 1965 } 1966 1967 static int 1968 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1969 { 1970 uint16_t *w; 1971 int ntries, i; 1972 1973 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1974 IWI_RST_STOP_MASTER); 1975 for (ntries = 0; ntries < 5; ntries++) { 1976 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1977 break; 1978 DELAY(10); 1979 } 1980 if (ntries == 5) { 1981 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1982 return ETIMEDOUT; 1983 } 1984 1985 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1986 DELAY(5000); 1987 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1988 ~IWI_RST_PRINCETON_RESET); 1989 DELAY(5000); 1990 MEM_WRITE_4(sc, 0x3000e0, 0); 1991 DELAY(1000); 1992 MEM_WRITE_4(sc, 0x300004, 1); 1993 DELAY(1000); 1994 MEM_WRITE_4(sc, 0x300004, 0); 1995 DELAY(1000); 1996 MEM_WRITE_1(sc, 0x200000, 0x00); 1997 MEM_WRITE_1(sc, 0x200000, 0x40); 1998 DELAY(1000); 1999 2000 /* Adapter is buggy, we must set the address for each word */ 2001 for (w = uc; size > 0; w++, size -= 2) 2002 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2003 2004 MEM_WRITE_1(sc, 0x200000, 0x00); 2005 MEM_WRITE_1(sc, 0x200000, 0x80); 2006 2007 /* Wait until we get a response in the uc queue */ 2008 for (ntries = 0; ntries < 100; ntries++) { 2009 if (MEM_READ_1(sc, 0x200000) & 1) 2010 break; 2011 DELAY(100); 2012 } 2013 if (ntries == 100) { 2014 aprint_error_dev(sc->sc_dev, 2015 "timeout waiting for ucode to initialize\n"); 2016 return ETIMEDOUT; 2017 } 2018 2019 /* Empty the uc queue or the firmware will not initialize properly */ 2020 for (i = 0; i < 7; i++) 2021 MEM_READ_4(sc, 0x200004); 2022 2023 MEM_WRITE_1(sc, 0x200000, 0x00); 2024 2025 return 0; 2026 } 2027 2028 /* macro to handle unaligned little endian data in firmware image */ 2029 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2030 static int 2031 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2032 { 2033 bus_dmamap_t map; 2034 u_char *p, *end; 2035 uint32_t sentinel, ctl, sum; 2036 uint32_t cs, sl, cd, cl; 2037 int ntries, nsegs, error; 2038 int sn; 2039 2040 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2041 2042 /* Create a DMA map for the firmware image */ 2043 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2044 BUS_DMA_NOWAIT, &map); 2045 if (error != 0) { 2046 aprint_error_dev(sc->sc_dev, 2047 "could not create firmware DMA map\n"); 2048 map = NULL; 2049 goto fail1; 2050 } 2051 2052 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2053 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2054 if (error != 0) { 2055 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2056 error); 2057 goto fail2; 2058 } 2059 2060 /* Make sure the adapter will get up-to-date values */ 2061 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2062 2063 /* Tell the adapter where the command blocks are stored */ 2064 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2065 2066 /* 2067 * Store command blocks into adapter's internal memory using register 2068 * indirections. The adapter will read the firmware image through DMA 2069 * using information stored in command blocks. 2070 */ 2071 p = fw; 2072 end = p + size; 2073 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2074 2075 sn = 0; 2076 sl = cl = 0; 2077 cs = cd = 0; 2078 while (p < end) { 2079 if (sl == 0) { 2080 cs = map->dm_segs[sn].ds_addr; 2081 sl = map->dm_segs[sn].ds_len; 2082 sn++; 2083 } 2084 if (cl == 0) { 2085 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2086 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2087 } 2088 while (sl > 0 && cl > 0) { 2089 int len = min(cl, sl); 2090 2091 sl -= len; 2092 cl -= len; 2093 p += len; 2094 2095 while (len > 0) { 2096 int mlen = min(len, IWI_CB_MAXDATALEN); 2097 2098 ctl = IWI_CB_DEFAULT_CTL | mlen; 2099 sum = ctl ^ cs ^ cd; 2100 2101 /* Write a command block */ 2102 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2103 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2104 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2105 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2106 2107 cs += mlen; 2108 cd += mlen; 2109 len -= mlen; 2110 } 2111 } 2112 } 2113 2114 /* Write a fictive final command block (sentinel) */ 2115 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2116 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2117 2118 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2119 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2120 2121 /* Tell the adapter to start processing command blocks */ 2122 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2123 2124 /* Wait until the adapter has processed all command blocks */ 2125 for (ntries = 0; ntries < 400; ntries++) { 2126 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2127 break; 2128 DELAY(100); 2129 } 2130 if (ntries == 400) { 2131 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2132 error = ETIMEDOUT; 2133 goto fail3; 2134 } 2135 2136 /* We're done with command blocks processing */ 2137 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2138 2139 /* Allow interrupts so we know when the firmware is inited */ 2140 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2141 2142 /* Tell the adapter to initialize the firmware */ 2143 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2144 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2145 IWI_CTL_ALLOW_STANDBY); 2146 2147 /* Wait at most one second for firmware initialization to complete */ 2148 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2149 aprint_error_dev(sc->sc_dev, 2150 "timeout waiting for firmware initialization to complete\n"); 2151 goto fail3; 2152 } 2153 2154 fail3: 2155 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2156 bus_dmamap_unload(sc->sc_dmat, map); 2157 fail2: 2158 if (map != NULL) 2159 bus_dmamap_destroy(sc->sc_dmat, map); 2160 2161 fail1: 2162 return error; 2163 } 2164 2165 /* 2166 * Store firmware into kernel memory so we can download it when we need to, 2167 * e.g when the adapter wakes up from suspend mode. 2168 */ 2169 static int 2170 iwi_cache_firmware(struct iwi_softc *sc) 2171 { 2172 struct iwi_firmware *kfw = &sc->fw; 2173 firmware_handle_t fwh; 2174 struct iwi_firmware_hdr *hdr; 2175 off_t size; 2176 char *fw; 2177 int error; 2178 2179 if (iwi_accept_eula == 0) { 2180 aprint_error_dev(sc->sc_dev, 2181 "EULA not accepted; please see the iwi(4) man page.\n"); 2182 return EPERM; 2183 } 2184 2185 iwi_free_firmware(sc); 2186 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2187 if (error != 0) { 2188 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2189 goto fail1; 2190 } 2191 2192 size = firmware_get_size(fwh); 2193 if (size < sizeof(struct iwi_firmware_hdr)) { 2194 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2195 sc->sc_fwname); 2196 error = EIO; 2197 goto fail1; 2198 } 2199 sc->sc_blobsize = size; 2200 2201 sc->sc_blob = firmware_malloc(size); 2202 if (sc->sc_blob == NULL) { 2203 error = ENOMEM; 2204 firmware_close(fwh); 2205 goto fail1; 2206 } 2207 2208 error = firmware_read(fwh, 0, sc->sc_blob, size); 2209 firmware_close(fwh); 2210 if (error != 0) 2211 goto fail2; 2212 2213 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2214 hdr->version = le32toh(hdr->version); 2215 hdr->bsize = le32toh(hdr->bsize); 2216 hdr->usize = le32toh(hdr->usize); 2217 hdr->fsize = le32toh(hdr->fsize); 2218 2219 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2220 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2221 sc->sc_fwname); 2222 error = EIO; 2223 goto fail2; 2224 } 2225 2226 DPRINTF(("firmware version = %d\n", hdr->version)); 2227 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2228 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2229 aprint_error_dev(sc->sc_dev, 2230 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2231 IWI_FW_GET_MAJOR(hdr->version), 2232 IWI_FW_GET_MINOR(hdr->version), 2233 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2234 error = EIO; 2235 goto fail2; 2236 } 2237 2238 kfw->boot_size = hdr->bsize; 2239 kfw->ucode_size = hdr->usize; 2240 kfw->main_size = hdr->fsize; 2241 2242 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2243 kfw->boot = fw; 2244 fw += kfw->boot_size; 2245 kfw->ucode = fw; 2246 fw += kfw->ucode_size; 2247 kfw->main = fw; 2248 2249 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2250 kfw->boot, kfw->ucode, kfw->main)); 2251 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2252 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2253 2254 sc->flags |= IWI_FLAG_FW_CACHED; 2255 2256 return 0; 2257 2258 2259 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2260 fail1: 2261 return error; 2262 } 2263 2264 static void 2265 iwi_free_firmware(struct iwi_softc *sc) 2266 { 2267 2268 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2269 return; 2270 2271 firmware_free(sc->sc_blob, sc->sc_blobsize); 2272 2273 sc->flags &= ~IWI_FLAG_FW_CACHED; 2274 } 2275 2276 static int 2277 iwi_config(struct iwi_softc *sc) 2278 { 2279 struct ieee80211com *ic = &sc->sc_ic; 2280 struct ifnet *ifp = &sc->sc_if; 2281 struct iwi_configuration config; 2282 struct iwi_rateset rs; 2283 struct iwi_txpower power; 2284 struct ieee80211_key *wk; 2285 struct iwi_wep_key wepkey; 2286 uint32_t data; 2287 int error, nchan, i; 2288 2289 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2290 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2291 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2292 IEEE80211_ADDR_LEN, 0); 2293 if (error != 0) 2294 return error; 2295 2296 memset(&config, 0, sizeof config); 2297 config.bluetooth_coexistence = sc->bluetooth; 2298 config.antenna = sc->antenna; 2299 config.silence_threshold = 0x1e; 2300 config.multicast_enabled = 1; 2301 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2302 config.disable_unicast_decryption = 1; 2303 config.disable_multicast_decryption = 1; 2304 DPRINTF(("Configuring adapter\n")); 2305 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2306 0); 2307 if (error != 0) 2308 return error; 2309 2310 data = htole32(IWI_POWER_MODE_CAM); 2311 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2312 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2313 if (error != 0) 2314 return error; 2315 2316 data = htole32(ic->ic_rtsthreshold); 2317 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2318 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2319 if (error != 0) 2320 return error; 2321 2322 data = htole32(ic->ic_fragthreshold); 2323 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2324 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2325 if (error != 0) 2326 return error; 2327 2328 /* 2329 * Set default Tx power for 802.11b/g and 802.11a channels. 2330 */ 2331 nchan = 0; 2332 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2333 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2334 continue; 2335 power.chan[nchan].chan = i; 2336 power.chan[nchan].power = IWI_TXPOWER_MAX; 2337 nchan++; 2338 } 2339 power.nchan = nchan; 2340 2341 power.mode = IWI_MODE_11G; 2342 DPRINTF(("Setting .11g channels tx power\n")); 2343 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2344 if (error != 0) 2345 return error; 2346 2347 power.mode = IWI_MODE_11B; 2348 DPRINTF(("Setting .11b channels tx power\n")); 2349 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2350 if (error != 0) 2351 return error; 2352 2353 nchan = 0; 2354 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2355 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2356 continue; 2357 power.chan[nchan].chan = i; 2358 power.chan[nchan].power = IWI_TXPOWER_MAX; 2359 nchan++; 2360 } 2361 power.nchan = nchan; 2362 2363 if (nchan > 0) { /* 2915ABG only */ 2364 power.mode = IWI_MODE_11A; 2365 DPRINTF(("Setting .11a channels tx power\n")); 2366 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2367 0); 2368 if (error != 0) 2369 return error; 2370 } 2371 2372 rs.mode = IWI_MODE_11G; 2373 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2374 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2375 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2376 rs.nrates); 2377 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2378 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2379 if (error != 0) 2380 return error; 2381 2382 rs.mode = IWI_MODE_11A; 2383 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2384 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2385 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2386 rs.nrates); 2387 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2388 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2389 if (error != 0) 2390 return error; 2391 2392 /* if we have a desired ESSID, set it now */ 2393 if (ic->ic_des_esslen != 0) { 2394 #ifdef IWI_DEBUG 2395 if (iwi_debug > 0) { 2396 printf("Setting desired ESSID to "); 2397 ieee80211_print_essid(ic->ic_des_essid, 2398 ic->ic_des_esslen); 2399 printf("\n"); 2400 } 2401 #endif 2402 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2403 ic->ic_des_esslen, 0); 2404 if (error != 0) 2405 return error; 2406 } 2407 2408 cprng_fast(&data, sizeof(data)); 2409 data = htole32(data); 2410 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2411 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2412 if (error != 0) 2413 return error; 2414 2415 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2416 /* XXX iwi_setwepkeys? */ 2417 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2418 wk = &ic->ic_crypto.cs_nw_keys[i]; 2419 2420 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2421 wepkey.idx = i; 2422 wepkey.len = wk->wk_keylen; 2423 memset(wepkey.key, 0, sizeof wepkey.key); 2424 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2425 DPRINTF(("Setting wep key index %u len %u\n", 2426 wepkey.idx, wepkey.len)); 2427 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2428 sizeof wepkey, 0); 2429 if (error != 0) 2430 return error; 2431 } 2432 } 2433 2434 /* Enable adapter */ 2435 DPRINTF(("Enabling adapter\n")); 2436 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2437 } 2438 2439 static int 2440 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2441 { 2442 struct ieee80211com *ic = &sc->sc_ic; 2443 struct iwi_scan_v2 scan; 2444 2445 (void)memset(&scan, 0, sizeof scan); 2446 2447 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2448 scan.channels[0] = 1 | 2449 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2450 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2451 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2452 2453 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2454 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2455 } 2456 2457 static int 2458 iwi_scan(struct iwi_softc *sc) 2459 { 2460 struct ieee80211com *ic = &sc->sc_ic; 2461 struct iwi_scan_v2 scan; 2462 uint32_t type; 2463 uint8_t *p; 2464 int i, count, idx; 2465 2466 (void)memset(&scan, 0, sizeof scan); 2467 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2468 htole16(sc->dwelltime); 2469 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2470 htole16(sc->dwelltime); 2471 2472 /* tell the firmware about the desired essid */ 2473 if (ic->ic_des_esslen) { 2474 int error; 2475 2476 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2477 __func__, ic->ic_des_essid)); 2478 2479 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2480 ic->ic_des_essid, ic->ic_des_esslen, 1); 2481 if (error) 2482 return error; 2483 2484 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2485 } else { 2486 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2487 } 2488 2489 p = &scan.channels[0]; 2490 count = idx = 0; 2491 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2492 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2493 isset(ic->ic_chan_active, i)) { 2494 *++p = i; 2495 count++; 2496 idx++; 2497 iwi_scan_type_set(scan, idx, type); 2498 } 2499 } 2500 if (count) { 2501 *(p - count) = IWI_CHAN_5GHZ | count; 2502 p++; 2503 } 2504 2505 count = 0; 2506 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2507 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2508 isset(ic->ic_chan_active, i)) { 2509 *++p = i; 2510 count++; 2511 idx++; 2512 iwi_scan_type_set(scan, idx, type); 2513 } 2514 } 2515 *(p - count) = IWI_CHAN_2GHZ | count; 2516 2517 DPRINTF(("Start scanning\n")); 2518 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2519 } 2520 2521 static int 2522 iwi_auth_and_assoc(struct iwi_softc *sc) 2523 { 2524 struct ieee80211com *ic = &sc->sc_ic; 2525 struct ieee80211_node *ni = ic->ic_bss; 2526 struct ifnet *ifp = &sc->sc_if; 2527 struct ieee80211_wme_info wme; 2528 struct iwi_configuration config; 2529 struct iwi_associate assoc; 2530 struct iwi_rateset rs; 2531 uint16_t capinfo; 2532 uint32_t data; 2533 int error; 2534 2535 memset(&config, 0, sizeof config); 2536 config.bluetooth_coexistence = sc->bluetooth; 2537 config.antenna = sc->antenna; 2538 config.multicast_enabled = 1; 2539 config.silence_threshold = 0x1e; 2540 if (ic->ic_curmode == IEEE80211_MODE_11G) 2541 config.use_protection = 1; 2542 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2543 config.disable_unicast_decryption = 1; 2544 config.disable_multicast_decryption = 1; 2545 2546 DPRINTF(("Configuring adapter\n")); 2547 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2548 sizeof config, 1); 2549 if (error != 0) 2550 return error; 2551 2552 #ifdef IWI_DEBUG 2553 if (iwi_debug > 0) { 2554 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2555 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2556 aprint_debug("\n"); 2557 } 2558 #endif 2559 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2560 if (error != 0) 2561 return error; 2562 2563 /* the rate set has already been "negotiated" */ 2564 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2565 IWI_MODE_11G; 2566 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2567 rs.nrates = ni->ni_rates.rs_nrates; 2568 2569 if (rs.nrates > IWI_RATESET_SIZE) { 2570 DPRINTF(("Truncating negotiated rate set from %u\n", 2571 rs.nrates)); 2572 rs.nrates = IWI_RATESET_SIZE; 2573 } 2574 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2575 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2576 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2577 if (error != 0) 2578 return error; 2579 2580 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2581 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2582 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2583 wme.wme_oui[0] = 0x00; 2584 wme.wme_oui[1] = 0x50; 2585 wme.wme_oui[2] = 0xf2; 2586 wme.wme_type = WME_OUI_TYPE; 2587 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2588 wme.wme_version = WME_VERSION; 2589 wme.wme_info = 0; 2590 2591 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2592 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2593 if (error != 0) 2594 return error; 2595 } 2596 2597 if (ic->ic_opt_ie != NULL) { 2598 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2599 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2600 ic->ic_opt_ie_len, 1); 2601 if (error != 0) 2602 return error; 2603 } 2604 data = htole32(ni->ni_rssi); 2605 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2606 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2607 if (error != 0) 2608 return error; 2609 2610 memset(&assoc, 0, sizeof assoc); 2611 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2612 assoc.mode = IWI_MODE_11A; 2613 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2614 assoc.mode = IWI_MODE_11G; 2615 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2616 assoc.mode = IWI_MODE_11B; 2617 2618 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2619 2620 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2621 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2622 2623 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2624 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2625 2626 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2627 assoc.policy |= htole16(IWI_POLICY_WME); 2628 if (ic->ic_flags & IEEE80211_F_WPA) 2629 assoc.policy |= htole16(IWI_POLICY_WPA); 2630 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2631 assoc.type = IWI_HC_IBSS_START; 2632 else 2633 assoc.type = IWI_HC_ASSOC; 2634 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2635 2636 if (ic->ic_opmode == IEEE80211_M_IBSS) 2637 capinfo = IEEE80211_CAPINFO_IBSS; 2638 else 2639 capinfo = IEEE80211_CAPINFO_ESS; 2640 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2641 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2642 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2643 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2644 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2645 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2646 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2647 assoc.capinfo = htole16(capinfo); 2648 2649 assoc.lintval = htole16(ic->ic_lintval); 2650 assoc.intval = htole16(ni->ni_intval); 2651 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2652 if (ic->ic_opmode == IEEE80211_M_IBSS) 2653 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2654 else 2655 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2656 2657 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2658 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2659 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2660 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2661 assoc.chan, le16toh(assoc.policy), assoc.auth, 2662 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2663 le16toh(assoc.intval))); 2664 2665 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2666 } 2667 2668 static int 2669 iwi_init(struct ifnet *ifp) 2670 { 2671 struct iwi_softc *sc = ifp->if_softc; 2672 struct ieee80211com *ic = &sc->sc_ic; 2673 struct iwi_firmware *fw = &sc->fw; 2674 int i, error; 2675 2676 /* exit immediately if firmware has not been ioctl'd */ 2677 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2678 if ((error = iwi_cache_firmware(sc)) != 0) { 2679 aprint_error_dev(sc->sc_dev, 2680 "could not cache the firmware\n"); 2681 goto fail; 2682 } 2683 } 2684 2685 iwi_stop(ifp, 0); 2686 2687 if ((error = iwi_reset(sc)) != 0) { 2688 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2689 goto fail; 2690 } 2691 2692 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2693 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2694 goto fail; 2695 } 2696 2697 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2698 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2699 goto fail; 2700 } 2701 2702 iwi_stop_master(sc); 2703 2704 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2705 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2706 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2707 2708 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2709 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2710 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2711 2712 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2713 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2714 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2715 2716 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2717 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2718 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2719 2720 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2721 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2722 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2723 2724 for (i = 0; i < sc->rxq.count; i++) 2725 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2726 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2727 2728 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2729 2730 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2731 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2732 goto fail; 2733 } 2734 2735 sc->flags |= IWI_FLAG_FW_INITED; 2736 2737 if ((error = iwi_config(sc)) != 0) { 2738 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2739 goto fail; 2740 } 2741 2742 ic->ic_state = IEEE80211_S_INIT; 2743 2744 ifp->if_flags &= ~IFF_OACTIVE; 2745 ifp->if_flags |= IFF_RUNNING; 2746 2747 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2748 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2749 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2750 } else 2751 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2752 2753 return 0; 2754 2755 fail: ifp->if_flags &= ~IFF_UP; 2756 iwi_stop(ifp, 0); 2757 2758 return error; 2759 } 2760 2761 2762 /* 2763 * Return whether or not the radio is enabled in hardware 2764 * (i.e. the rfkill switch is "off"). 2765 */ 2766 static int 2767 iwi_getrfkill(struct iwi_softc *sc) 2768 { 2769 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2770 } 2771 2772 static int 2773 iwi_sysctl_radio(SYSCTLFN_ARGS) 2774 { 2775 struct sysctlnode node; 2776 struct iwi_softc *sc; 2777 int val, error; 2778 2779 node = *rnode; 2780 sc = (struct iwi_softc *)node.sysctl_data; 2781 2782 val = !iwi_getrfkill(sc); 2783 2784 node.sysctl_data = &val; 2785 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2786 2787 if (error || newp == NULL) 2788 return error; 2789 2790 return 0; 2791 } 2792 2793 #ifdef IWI_DEBUG 2794 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2795 { 2796 int rc; 2797 const struct sysctlnode *rnode; 2798 const struct sysctlnode *cnode; 2799 2800 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2801 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2802 SYSCTL_DESCR("iwi global controls"), 2803 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2804 goto err; 2805 2806 /* control debugging printfs */ 2807 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2808 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2809 "debug", SYSCTL_DESCR("Enable debugging output"), 2810 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2811 goto err; 2812 2813 return; 2814 err: 2815 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2816 } 2817 2818 #endif /* IWI_DEBUG */ 2819 2820 /* 2821 * Add sysctl knobs. 2822 */ 2823 static void 2824 iwi_sysctlattach(struct iwi_softc *sc) 2825 { 2826 int rc; 2827 const struct sysctlnode *rnode; 2828 const struct sysctlnode *cnode; 2829 2830 struct sysctllog **clog = &sc->sc_sysctllog; 2831 2832 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2833 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2834 SYSCTL_DESCR("iwi controls and statistics"), 2835 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2836 goto err; 2837 2838 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2839 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2840 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2841 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2842 goto err; 2843 2844 sc->dwelltime = 100; 2845 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2846 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2847 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2848 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2849 goto err; 2850 2851 sc->bluetooth = 0; 2852 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2853 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2854 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2855 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2856 goto err; 2857 2858 sc->antenna = IWI_ANTENNA_AUTO; 2859 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2860 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2861 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2862 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2863 goto err; 2864 2865 return; 2866 err: 2867 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2868 } 2869 2870 static void 2871 iwi_stop(struct ifnet *ifp, int disable) 2872 { 2873 struct iwi_softc *sc = ifp->if_softc; 2874 struct ieee80211com *ic = &sc->sc_ic; 2875 2876 IWI_LED_OFF(sc); 2877 2878 iwi_stop_master(sc); 2879 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2880 2881 /* reset rings */ 2882 iwi_reset_cmd_ring(sc, &sc->cmdq); 2883 iwi_reset_tx_ring(sc, &sc->txq[0]); 2884 iwi_reset_tx_ring(sc, &sc->txq[1]); 2885 iwi_reset_tx_ring(sc, &sc->txq[2]); 2886 iwi_reset_tx_ring(sc, &sc->txq[3]); 2887 iwi_reset_rx_ring(sc, &sc->rxq); 2888 2889 ifp->if_timer = 0; 2890 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2891 2892 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2893 } 2894 2895 static void 2896 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2897 { 2898 uint32_t val; 2899 2900 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2901 2902 switch (sc->nictype) { 2903 case 1: 2904 /* special NIC type: reversed leds */ 2905 if (state == IWI_LED_ACTIVITY) { 2906 state &= ~IWI_LED_ACTIVITY; 2907 state |= IWI_LED_ASSOCIATED; 2908 } else if (state == IWI_LED_ASSOCIATED) { 2909 state &= ~IWI_LED_ASSOCIATED; 2910 state |= IWI_LED_ACTIVITY; 2911 } 2912 /* and ignore toggle effect */ 2913 val |= state; 2914 break; 2915 case 0: 2916 case 2: 2917 case 3: 2918 case 4: 2919 val = (toggle && (val & state)) ? val & ~state : val | state; 2920 break; 2921 default: 2922 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2923 sc->nictype); 2924 return; 2925 break; 2926 } 2927 2928 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2929 2930 return; 2931 } 2932 2933 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2934 { 2935 const struct sysctlnode *rnode; 2936 const struct sysctlnode *cnode; 2937 2938 sysctl_createv(NULL, 0, NULL, &rnode, 2939 CTLFLAG_PERMANENT, 2940 CTLTYPE_NODE, "iwi", 2941 NULL, 2942 NULL, 0, 2943 NULL, 0, 2944 CTL_HW, CTL_CREATE, CTL_EOL); 2945 2946 sysctl_createv(NULL, 0, &rnode, &cnode, 2947 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2948 CTLTYPE_INT, "accept_eula", 2949 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2950 NULL, 0, 2951 &iwi_accept_eula, sizeof(iwi_accept_eula), 2952 CTL_CREATE, CTL_EOL); 2953 } 2954