1 /* $NetBSD: if_iwi.c,v 1.89 2012/01/30 19:41:20 drochner 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 1.89 2012/01/30 19:41:20 drochner 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; 212 213 sc->sc_dev = self; 214 sc->sc_pct = pa->pa_pc; 215 sc->sc_pcitag = pa->pa_tag; 216 217 pci_aprint_devinfo(pa, NULL); 218 219 /* clear unit numbers allocated to IBSS */ 220 sc->sc_unr = 0; 221 222 /* power up chip */ 223 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 224 NULL)) && error != EOPNOTSUPP) { 225 aprint_error_dev(self, "cannot activate %d\n", error); 226 return; 227 } 228 229 /* clear device specific PCI configuration register 0x41 */ 230 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 231 data &= ~0x0000ff00; 232 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 233 234 235 /* enable bus-mastering */ 236 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 237 data |= PCI_COMMAND_MASTER_ENABLE; 238 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 239 240 /* map the register window */ 241 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 242 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 243 if (error != 0) { 244 aprint_error_dev(self, "could not map memory space\n"); 245 return; 246 } 247 248 sc->sc_st = memt; 249 sc->sc_sh = memh; 250 sc->sc_dmat = pa->pa_dmat; 251 252 /* disable interrupts */ 253 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 254 255 if (pci_intr_map(pa, &ih) != 0) { 256 aprint_error_dev(self, "could not map interrupt\n"); 257 return; 258 } 259 260 intrstr = pci_intr_string(sc->sc_pct, ih); 261 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 262 if (sc->sc_ih == NULL) { 263 aprint_error_dev(self, "could not establish interrupt"); 264 if (intrstr != NULL) 265 aprint_error(" at %s", intrstr); 266 aprint_error("\n"); 267 return; 268 } 269 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 270 271 if (iwi_reset(sc) != 0) { 272 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 273 aprint_error_dev(self, "could not reset adapter\n"); 274 return; 275 } 276 277 ic->ic_ifp = ifp; 278 ic->ic_wme.wme_update = iwi_wme_update; 279 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 280 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 281 ic->ic_state = IEEE80211_S_INIT; 282 283 sc->sc_fwname = "ipw2200-bss.fw"; 284 285 /* set device capabilities */ 286 ic->ic_caps = 287 IEEE80211_C_IBSS | /* IBSS mode supported */ 288 IEEE80211_C_MONITOR | /* monitor mode supported */ 289 IEEE80211_C_TXPMGT | /* tx power management */ 290 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 291 IEEE80211_C_SHSLOT | /* short slot time supported */ 292 IEEE80211_C_WPA | /* 802.11i */ 293 IEEE80211_C_WME; /* 802.11e */ 294 295 /* read MAC address from EEPROM */ 296 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 297 ic->ic_myaddr[0] = val & 0xff; 298 ic->ic_myaddr[1] = val >> 8; 299 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 300 ic->ic_myaddr[2] = val & 0xff; 301 ic->ic_myaddr[3] = val >> 8; 302 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 303 ic->ic_myaddr[4] = val & 0xff; 304 ic->ic_myaddr[5] = val >> 8; 305 306 aprint_verbose_dev(self, "802.11 address %s\n", 307 ether_sprintf(ic->ic_myaddr)); 308 309 /* read the NIC type from EEPROM */ 310 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 311 sc->nictype = val & 0xff; 312 313 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 314 315 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 316 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 317 /* set supported .11a rates (2915ABG only) */ 318 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 319 320 /* set supported .11a channels */ 321 for (i = 36; i <= 64; i += 4) { 322 ic->ic_channels[i].ic_freq = 323 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 324 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 325 } 326 for (i = 149; i <= 165; i += 4) { 327 ic->ic_channels[i].ic_freq = 328 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 329 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 330 } 331 } 332 333 /* set supported .11b and .11g rates */ 334 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 335 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 336 337 /* set supported .11b and .11g channels (1 through 14) */ 338 for (i = 1; i <= 14; i++) { 339 ic->ic_channels[i].ic_freq = 340 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 341 ic->ic_channels[i].ic_flags = 342 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 343 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 344 } 345 346 ifp->if_softc = sc; 347 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 348 ifp->if_init = iwi_init; 349 ifp->if_stop = iwi_stop; 350 ifp->if_ioctl = iwi_ioctl; 351 ifp->if_start = iwi_start; 352 ifp->if_watchdog = iwi_watchdog; 353 IFQ_SET_READY(&ifp->if_snd); 354 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 355 356 if_attach(ifp); 357 ieee80211_ifattach(ic); 358 /* override default methods */ 359 ic->ic_node_alloc = iwi_node_alloc; 360 sc->sc_node_free = ic->ic_node_free; 361 ic->ic_node_free = iwi_node_free; 362 /* override state transition machine */ 363 sc->sc_newstate = ic->ic_newstate; 364 ic->ic_newstate = iwi_newstate; 365 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 366 367 /* 368 * Allocate rings. 369 */ 370 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 371 aprint_error_dev(self, "could not allocate command ring\n"); 372 goto fail; 373 } 374 375 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 376 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 377 if (error != 0) { 378 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 379 goto fail; 380 } 381 382 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 383 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 384 if (error != 0) { 385 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 386 goto fail; 387 } 388 389 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 390 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 391 if (error != 0) { 392 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 393 goto fail; 394 } 395 396 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 397 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 398 if (error != 0) { 399 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 400 goto fail; 401 } 402 403 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 404 aprint_error_dev(self, "could not allocate Rx ring\n"); 405 goto fail; 406 } 407 408 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 409 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 410 411 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 412 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 413 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 414 415 sc->sc_txtap_len = sizeof sc->sc_txtapu; 416 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 417 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 418 419 iwi_sysctlattach(sc); 420 421 if (pmf_device_register(self, NULL, NULL)) 422 pmf_class_network_register(self, ifp); 423 else 424 aprint_error_dev(self, "couldn't establish power handler\n"); 425 426 ieee80211_announce(ic); 427 428 return; 429 430 fail: iwi_detach(self, 0); 431 } 432 433 static int 434 iwi_detach(device_t self, int flags) 435 { 436 struct iwi_softc *sc = device_private(self); 437 struct ifnet *ifp = &sc->sc_if; 438 439 pmf_device_deregister(self); 440 441 if (ifp != NULL) 442 iwi_stop(ifp, 1); 443 444 iwi_free_firmware(sc); 445 446 ieee80211_ifdetach(&sc->sc_ic); 447 if (ifp != NULL) 448 if_detach(ifp); 449 450 iwi_free_cmd_ring(sc, &sc->cmdq); 451 iwi_free_tx_ring(sc, &sc->txq[0]); 452 iwi_free_tx_ring(sc, &sc->txq[1]); 453 iwi_free_tx_ring(sc, &sc->txq[2]); 454 iwi_free_tx_ring(sc, &sc->txq[3]); 455 iwi_free_rx_ring(sc, &sc->rxq); 456 457 if (sc->sc_ih != NULL) { 458 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 459 sc->sc_ih = NULL; 460 } 461 462 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 463 464 return 0; 465 } 466 467 static int 468 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 469 int count) 470 { 471 int error, nsegs; 472 473 ring->count = count; 474 ring->queued = 0; 475 ring->cur = ring->next = 0; 476 477 /* 478 * Allocate and map command ring 479 */ 480 error = bus_dmamap_create(sc->sc_dmat, 481 IWI_CMD_DESC_SIZE * count, 1, 482 IWI_CMD_DESC_SIZE * count, 0, 483 BUS_DMA_NOWAIT, &ring->desc_map); 484 if (error != 0) { 485 aprint_error_dev(sc->sc_dev, 486 "could not create command ring DMA map\n"); 487 ring->desc_map = NULL; 488 goto fail; 489 } 490 491 error = bus_dmamem_alloc(sc->sc_dmat, 492 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 493 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 494 if (error != 0) { 495 aprint_error_dev(sc->sc_dev, 496 "could not allocate command ring DMA memory\n"); 497 goto fail; 498 } 499 500 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 501 IWI_CMD_DESC_SIZE * count, 502 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 503 if (error != 0) { 504 aprint_error_dev(sc->sc_dev, 505 "could not map command ring DMA memory\n"); 506 goto fail; 507 } 508 509 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 510 IWI_CMD_DESC_SIZE * count, NULL, 511 BUS_DMA_NOWAIT); 512 if (error != 0) { 513 aprint_error_dev(sc->sc_dev, 514 "could not load command ring DMA map\n"); 515 goto fail; 516 } 517 518 memset(sc->cmdq.desc, 0, 519 IWI_CMD_DESC_SIZE * count); 520 521 return 0; 522 523 fail: return error; 524 } 525 526 static void 527 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 528 { 529 int i; 530 531 for (i = ring->next; i != ring->cur;) { 532 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 533 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 534 BUS_DMASYNC_POSTWRITE); 535 536 wakeup(&ring->desc[i]); 537 i = (i + 1) % ring->count; 538 } 539 540 ring->queued = 0; 541 ring->cur = ring->next = 0; 542 } 543 544 static void 545 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 546 { 547 if (ring->desc_map != NULL) { 548 if (ring->desc != NULL) { 549 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 550 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 551 IWI_CMD_DESC_SIZE * ring->count); 552 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 553 } 554 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 555 } 556 } 557 558 static int 559 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 560 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 561 { 562 int i, error, nsegs; 563 564 ring->count = 0; 565 ring->queued = 0; 566 ring->cur = ring->next = 0; 567 ring->csr_ridx = csr_ridx; 568 ring->csr_widx = csr_widx; 569 570 /* 571 * Allocate and map Tx ring 572 */ 573 error = bus_dmamap_create(sc->sc_dmat, 574 IWI_TX_DESC_SIZE * count, 1, 575 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 576 &ring->desc_map); 577 if (error != 0) { 578 aprint_error_dev(sc->sc_dev, 579 "could not create tx ring DMA map\n"); 580 ring->desc_map = NULL; 581 goto fail; 582 } 583 584 error = bus_dmamem_alloc(sc->sc_dmat, 585 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 586 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 587 if (error != 0) { 588 aprint_error_dev(sc->sc_dev, 589 "could not allocate tx ring DMA memory\n"); 590 goto fail; 591 } 592 593 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 594 IWI_TX_DESC_SIZE * count, 595 (void **)&ring->desc, BUS_DMA_NOWAIT); 596 if (error != 0) { 597 aprint_error_dev(sc->sc_dev, 598 "could not map tx ring DMA memory\n"); 599 goto fail; 600 } 601 602 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 603 IWI_TX_DESC_SIZE * count, NULL, 604 BUS_DMA_NOWAIT); 605 if (error != 0) { 606 aprint_error_dev(sc->sc_dev, 607 "could not load tx ring DMA map\n"); 608 goto fail; 609 } 610 611 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 612 613 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 614 M_NOWAIT | M_ZERO); 615 if (ring->data == NULL) { 616 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 617 error = ENOMEM; 618 goto fail; 619 } 620 ring->count = count; 621 622 /* 623 * Allocate Tx buffers DMA maps 624 */ 625 for (i = 0; i < count; i++) { 626 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 627 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 628 if (error != 0) { 629 aprint_error_dev(sc->sc_dev, 630 "could not create tx buf DMA map"); 631 ring->data[i].map = NULL; 632 goto fail; 633 } 634 } 635 return 0; 636 637 fail: return error; 638 } 639 640 static void 641 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 642 { 643 struct iwi_tx_data *data; 644 int i; 645 646 for (i = 0; i < ring->count; i++) { 647 data = &ring->data[i]; 648 649 if (data->m != NULL) { 650 m_freem(data->m); 651 data->m = NULL; 652 } 653 654 if (data->map != NULL) { 655 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 656 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 657 bus_dmamap_unload(sc->sc_dmat, data->map); 658 } 659 660 if (data->ni != NULL) { 661 ieee80211_free_node(data->ni); 662 data->ni = NULL; 663 } 664 } 665 666 ring->queued = 0; 667 ring->cur = ring->next = 0; 668 } 669 670 static void 671 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 672 { 673 int i; 674 struct iwi_tx_data *data; 675 676 if (ring->desc_map != NULL) { 677 if (ring->desc != NULL) { 678 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 679 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 680 IWI_TX_DESC_SIZE * ring->count); 681 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 682 } 683 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 684 } 685 686 for (i = 0; i < ring->count; i++) { 687 data = &ring->data[i]; 688 689 if (data->m != NULL) { 690 m_freem(data->m); 691 } 692 693 if (data->map != NULL) { 694 bus_dmamap_unload(sc->sc_dmat, data->map); 695 bus_dmamap_destroy(sc->sc_dmat, data->map); 696 } 697 } 698 } 699 700 static int 701 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 702 { 703 int i, error; 704 705 ring->count = 0; 706 ring->cur = 0; 707 708 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 709 M_NOWAIT | M_ZERO); 710 if (ring->data == NULL) { 711 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 712 error = ENOMEM; 713 goto fail; 714 } 715 716 ring->count = count; 717 718 /* 719 * Allocate and map Rx buffers 720 */ 721 for (i = 0; i < count; i++) { 722 723 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 724 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 725 if (error != 0) { 726 aprint_error_dev(sc->sc_dev, 727 "could not create rx buf DMA map"); 728 ring->data[i].map = NULL; 729 goto fail; 730 } 731 732 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 733 error = ENOMEM; 734 goto fail; 735 } 736 737 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 738 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 739 if (error != 0) { 740 aprint_error_dev(sc->sc_dev, 741 "could not load rx buffer DMA map\n"); 742 goto fail; 743 } 744 745 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 746 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 747 } 748 749 return 0; 750 751 fail: return error; 752 } 753 754 static void 755 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 756 { 757 ring->cur = 0; 758 } 759 760 static void 761 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 762 { 763 int i; 764 struct iwi_rx_data *data; 765 766 for (i = 0; i < ring->count; i++) { 767 data = &ring->data[i]; 768 769 if (data->m != NULL) { 770 m_freem(data->m); 771 } 772 773 if (data->map != NULL) { 774 bus_dmamap_unload(sc->sc_dmat, data->map); 775 bus_dmamap_destroy(sc->sc_dmat, data->map); 776 } 777 778 } 779 } 780 781 static struct ieee80211_node * 782 iwi_node_alloc(struct ieee80211_node_table *nt) 783 { 784 struct iwi_node *in; 785 786 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 787 if (in == NULL) 788 return NULL; 789 790 in->in_station = -1; 791 792 return &in->in_node; 793 } 794 795 static int 796 iwi_alloc_unr(struct iwi_softc *sc) 797 { 798 int i; 799 800 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 801 if ((sc->sc_unr & (1 << i)) == 0) { 802 sc->sc_unr |= 1 << i; 803 return i; 804 } 805 806 return -1; 807 } 808 809 static void 810 iwi_free_unr(struct iwi_softc *sc, int r) 811 { 812 813 sc->sc_unr &= 1 << r; 814 } 815 816 static void 817 iwi_node_free(struct ieee80211_node *ni) 818 { 819 struct ieee80211com *ic = ni->ni_ic; 820 struct iwi_softc *sc = ic->ic_ifp->if_softc; 821 struct iwi_node *in = (struct iwi_node *)ni; 822 823 if (in->in_station != -1) 824 iwi_free_unr(sc, in->in_station); 825 826 sc->sc_node_free(ni); 827 } 828 829 static int 830 iwi_media_change(struct ifnet *ifp) 831 { 832 int error; 833 834 error = ieee80211_media_change(ifp); 835 if (error != ENETRESET) 836 return error; 837 838 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 839 iwi_init(ifp); 840 841 return 0; 842 } 843 844 /* 845 * Convert h/w rate code to IEEE rate code. 846 */ 847 static int 848 iwi_cvtrate(int iwirate) 849 { 850 switch (iwirate) { 851 case IWI_RATE_DS1: return 2; 852 case IWI_RATE_DS2: return 4; 853 case IWI_RATE_DS5: return 11; 854 case IWI_RATE_DS11: return 22; 855 case IWI_RATE_OFDM6: return 12; 856 case IWI_RATE_OFDM9: return 18; 857 case IWI_RATE_OFDM12: return 24; 858 case IWI_RATE_OFDM18: return 36; 859 case IWI_RATE_OFDM24: return 48; 860 case IWI_RATE_OFDM36: return 72; 861 case IWI_RATE_OFDM48: return 96; 862 case IWI_RATE_OFDM54: return 108; 863 } 864 return 0; 865 } 866 867 /* 868 * The firmware automatically adapts the transmit speed. We report its current 869 * value here. 870 */ 871 static void 872 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 873 { 874 struct iwi_softc *sc = ifp->if_softc; 875 struct ieee80211com *ic = &sc->sc_ic; 876 int rate; 877 878 imr->ifm_status = IFM_AVALID; 879 imr->ifm_active = IFM_IEEE80211; 880 if (ic->ic_state == IEEE80211_S_RUN) 881 imr->ifm_status |= IFM_ACTIVE; 882 883 /* read current transmission rate from adapter */ 884 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 885 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 886 887 switch (ic->ic_opmode) { 888 case IEEE80211_M_STA: 889 break; 890 891 case IEEE80211_M_IBSS: 892 imr->ifm_active |= IFM_IEEE80211_ADHOC; 893 break; 894 895 case IEEE80211_M_MONITOR: 896 imr->ifm_active |= IFM_IEEE80211_MONITOR; 897 break; 898 899 case IEEE80211_M_AHDEMO: 900 case IEEE80211_M_HOSTAP: 901 /* should not get there */ 902 break; 903 } 904 } 905 906 static int 907 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 908 { 909 struct iwi_softc *sc = ic->ic_ifp->if_softc; 910 911 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 912 ieee80211_state_name[ic->ic_state], 913 ieee80211_state_name[nstate], sc->flags)); 914 915 switch (nstate) { 916 case IEEE80211_S_SCAN: 917 if (sc->flags & IWI_FLAG_SCANNING) 918 break; 919 920 ieee80211_node_table_reset(&ic->ic_scan); 921 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 922 sc->flags |= IWI_FLAG_SCANNING; 923 /* blink the led while scanning */ 924 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 925 iwi_scan(sc); 926 break; 927 928 case IEEE80211_S_AUTH: 929 iwi_auth_and_assoc(sc); 930 break; 931 932 case IEEE80211_S_RUN: 933 if (ic->ic_opmode == IEEE80211_M_IBSS) 934 ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 935 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 936 iwi_set_chan(sc, ic->ic_ibss_chan); 937 938 return (*sc->sc_newstate)(ic, nstate, 939 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 940 941 case IEEE80211_S_ASSOC: 942 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 943 break; 944 945 case IEEE80211_S_INIT: 946 sc->flags &= ~IWI_FLAG_SCANNING; 947 return (*sc->sc_newstate)(ic, nstate, arg); 948 } 949 950 ic->ic_state = nstate; 951 return 0; 952 } 953 954 /* 955 * WME parameters coming from IEEE 802.11e specification. These values are 956 * already declared in ieee80211_proto.c, but they are static so they can't 957 * be reused here. 958 */ 959 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 960 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 961 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 962 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 963 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 964 }; 965 966 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 967 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 968 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 969 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 970 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 971 }; 972 973 static int 974 iwi_wme_update(struct ieee80211com *ic) 975 { 976 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 977 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 978 struct iwi_softc *sc = ic->ic_ifp->if_softc; 979 struct iwi_wme_params wme[3]; 980 const struct wmeParams *wmep; 981 int ac; 982 983 /* 984 * We shall not override firmware default WME values if WME is not 985 * actually enabled. 986 */ 987 if (!(ic->ic_flags & IEEE80211_F_WME)) 988 return 0; 989 990 for (ac = 0; ac < WME_NUM_AC; ac++) { 991 /* set WME values for current operating mode */ 992 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 993 wme[0].aifsn[ac] = wmep->wmep_aifsn; 994 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 995 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 996 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 997 wme[0].acm[ac] = wmep->wmep_acm; 998 999 /* set WME values for CCK modulation */ 1000 wmep = &iwi_wme_cck_params[ac]; 1001 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1002 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1003 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1004 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1005 wme[1].acm[ac] = wmep->wmep_acm; 1006 1007 /* set WME values for OFDM modulation */ 1008 wmep = &iwi_wme_ofdm_params[ac]; 1009 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1010 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1011 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1012 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1013 wme[2].acm[ac] = wmep->wmep_acm; 1014 } 1015 1016 DPRINTF(("Setting WME parameters\n")); 1017 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1018 #undef IWI_USEC 1019 #undef IWI_EXP2 1020 } 1021 1022 /* 1023 * Read 16 bits at address 'addr' from the serial EEPROM. 1024 */ 1025 static uint16_t 1026 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1027 { 1028 uint32_t tmp; 1029 uint16_t val; 1030 int n; 1031 1032 /* Clock C once before the first command */ 1033 IWI_EEPROM_CTL(sc, 0); 1034 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1035 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1037 1038 /* Write start bit (1) */ 1039 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1041 1042 /* Write READ opcode (10) */ 1043 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1047 1048 /* Write address A7-A0 */ 1049 for (n = 7; n >= 0; n--) { 1050 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1051 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1053 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1054 } 1055 1056 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1057 1058 /* Read data Q15-Q0 */ 1059 val = 0; 1060 for (n = 15; n >= 0; n--) { 1061 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1063 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1064 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1065 } 1066 1067 IWI_EEPROM_CTL(sc, 0); 1068 1069 /* Clear Chip Select and clock C */ 1070 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1071 IWI_EEPROM_CTL(sc, 0); 1072 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1073 1074 return val; 1075 } 1076 1077 /* 1078 * XXX: Hack to set the current channel to the value advertised in beacons or 1079 * probe responses. Only used during AP detection. 1080 */ 1081 static void 1082 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1083 { 1084 struct ieee80211_frame *wh; 1085 uint8_t subtype; 1086 uint8_t *frm, *efrm; 1087 1088 wh = mtod(m, struct ieee80211_frame *); 1089 1090 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1091 return; 1092 1093 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1094 1095 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1096 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1097 return; 1098 1099 frm = (uint8_t *)(wh + 1); 1100 efrm = mtod(m, uint8_t *) + m->m_len; 1101 1102 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1103 while (frm < efrm) { 1104 if (*frm == IEEE80211_ELEMID_DSPARMS) 1105 #if IEEE80211_CHAN_MAX < 255 1106 if (frm[2] <= IEEE80211_CHAN_MAX) 1107 #endif 1108 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1109 1110 frm += frm[1] + 2; 1111 } 1112 } 1113 1114 static struct mbuf * 1115 iwi_alloc_rx_buf(struct iwi_softc *sc) 1116 { 1117 struct mbuf *m; 1118 1119 MGETHDR(m, M_DONTWAIT, MT_DATA); 1120 if (m == NULL) { 1121 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1122 return NULL; 1123 } 1124 1125 MCLGET(m, M_DONTWAIT); 1126 if (!(m->m_flags & M_EXT)) { 1127 aprint_error_dev(sc->sc_dev, 1128 "could not allocate rx mbuf cluster\n"); 1129 m_freem(m); 1130 return NULL; 1131 } 1132 1133 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1134 return m; 1135 } 1136 1137 static void 1138 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1139 struct iwi_frame *frame) 1140 { 1141 struct ieee80211com *ic = &sc->sc_ic; 1142 struct ifnet *ifp = ic->ic_ifp; 1143 struct mbuf *m, *m_new; 1144 struct ieee80211_frame *wh; 1145 struct ieee80211_node *ni; 1146 int error; 1147 1148 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1149 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1150 1151 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1152 le16toh(frame->len) > MCLBYTES) { 1153 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1154 ifp->if_ierrors++; 1155 return; 1156 } 1157 1158 /* 1159 * Try to allocate a new mbuf for this ring element and 1160 * load it before processing the current mbuf. If the ring 1161 * element cannot be reloaded, drop the received packet 1162 * and reuse the old mbuf. In the unlikely case that 1163 * the old mbuf can't be reloaded either, explicitly panic. 1164 * 1165 * XXX Reorganize buffer by moving elements from the logical 1166 * end of the ring to the front instead of dropping. 1167 */ 1168 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1169 ifp->if_ierrors++; 1170 return; 1171 } 1172 1173 bus_dmamap_unload(sc->sc_dmat, data->map); 1174 1175 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1176 BUS_DMA_READ | BUS_DMA_NOWAIT); 1177 if (error != 0) { 1178 aprint_error_dev(sc->sc_dev, 1179 "could not load rx buf DMA map\n"); 1180 m_freem(m_new); 1181 ifp->if_ierrors++; 1182 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1183 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1184 if (error) 1185 panic("%s: unable to remap rx buf", 1186 device_xname(sc->sc_dev)); 1187 return; 1188 } 1189 1190 /* 1191 * New mbuf successfully loaded, update RX ring and continue 1192 * processing. 1193 */ 1194 m = data->m; 1195 data->m = m_new; 1196 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1197 1198 /* Finalize mbuf */ 1199 m->m_pkthdr.rcvif = ifp; 1200 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1201 sizeof (struct iwi_frame) + le16toh(frame->len); 1202 1203 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1204 1205 if (ic->ic_state == IEEE80211_S_SCAN) 1206 iwi_fix_channel(ic, m); 1207 1208 if (sc->sc_drvbpf != NULL) { 1209 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1210 1211 tap->wr_flags = 0; 1212 tap->wr_rate = iwi_cvtrate(frame->rate); 1213 tap->wr_chan_freq = 1214 htole16(ic->ic_channels[frame->chan].ic_freq); 1215 tap->wr_chan_flags = 1216 htole16(ic->ic_channels[frame->chan].ic_flags); 1217 tap->wr_antsignal = frame->signal; 1218 tap->wr_antenna = frame->antenna; 1219 1220 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1221 } 1222 wh = mtod(m, struct ieee80211_frame *); 1223 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1224 1225 /* Send the frame to the upper layer */ 1226 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1227 1228 /* node is no longer needed */ 1229 ieee80211_free_node(ni); 1230 } 1231 1232 static void 1233 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1234 { 1235 struct ieee80211com *ic = &sc->sc_ic; 1236 struct iwi_notif_scan_channel *chan; 1237 struct iwi_notif_scan_complete *scan; 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 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1245 1246 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1247 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1248 break; 1249 1250 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1251 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1252 1253 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1254 scan->status)); 1255 1256 /* monitor mode uses scan to set the channel ... */ 1257 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1258 sc->flags &= ~IWI_FLAG_SCANNING; 1259 ieee80211_end_scan(ic); 1260 } else 1261 iwi_set_chan(sc, ic->ic_ibss_chan); 1262 break; 1263 1264 case IWI_NOTIF_TYPE_AUTHENTICATION: 1265 auth = (struct iwi_notif_authentication *)(notif + 1); 1266 1267 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1268 1269 switch (auth->state) { 1270 case IWI_AUTH_SUCCESS: 1271 ieee80211_node_authorize(ic->ic_bss); 1272 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1273 break; 1274 1275 case IWI_AUTH_FAIL: 1276 break; 1277 1278 default: 1279 aprint_error_dev(sc->sc_dev, 1280 "unknown authentication state %u\n", auth->state); 1281 } 1282 break; 1283 1284 case IWI_NOTIF_TYPE_ASSOCIATION: 1285 assoc = (struct iwi_notif_association *)(notif + 1); 1286 1287 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1288 assoc->status)); 1289 1290 switch (assoc->state) { 1291 case IWI_AUTH_SUCCESS: 1292 /* re-association, do nothing */ 1293 break; 1294 1295 case IWI_ASSOC_SUCCESS: 1296 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1297 break; 1298 1299 case IWI_ASSOC_FAIL: 1300 ieee80211_begin_scan(ic, 1); 1301 break; 1302 1303 default: 1304 aprint_error_dev(sc->sc_dev, 1305 "unknown association state %u\n", assoc->state); 1306 } 1307 break; 1308 1309 case IWI_NOTIF_TYPE_BEACON: 1310 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1311 1312 if (beacon->state == IWI_BEACON_MISS) { 1313 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1314 device_xname(sc->sc_dev), le32toh(beacon->number))); 1315 } 1316 break; 1317 1318 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1319 case IWI_NOTIF_TYPE_LINK_QUALITY: 1320 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1321 case IWI_NOTIF_TYPE_CALIBRATION: 1322 case IWI_NOTIF_TYPE_NOISE: 1323 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1324 break; 1325 1326 default: 1327 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1328 device_xname(sc->sc_dev), notif->type, notif->flags, 1329 le16toh(notif->len))); 1330 } 1331 } 1332 1333 static void 1334 iwi_cmd_intr(struct iwi_softc *sc) 1335 { 1336 uint32_t hw; 1337 1338 hw = CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1339 1340 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1341 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1342 BUS_DMASYNC_POSTWRITE); 1343 1344 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1345 1346 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1347 1348 if (--sc->cmdq.queued > 0) { 1349 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1350 } 1351 } 1352 1353 static void 1354 iwi_rx_intr(struct iwi_softc *sc) 1355 { 1356 struct iwi_rx_data *data; 1357 struct iwi_hdr *hdr; 1358 uint32_t hw; 1359 1360 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1361 1362 for (; sc->rxq.cur != hw;) { 1363 data = &sc->rxq.data[sc->rxq.cur]; 1364 1365 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1366 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1367 1368 hdr = mtod(data->m, struct iwi_hdr *); 1369 1370 switch (hdr->type) { 1371 case IWI_HDR_TYPE_FRAME: 1372 iwi_frame_intr(sc, data, sc->rxq.cur, 1373 (struct iwi_frame *)(hdr + 1)); 1374 break; 1375 1376 case IWI_HDR_TYPE_NOTIF: 1377 iwi_notification_intr(sc, 1378 (struct iwi_notif *)(hdr + 1)); 1379 break; 1380 1381 default: 1382 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1383 hdr->type); 1384 } 1385 1386 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1387 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1388 1389 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1390 1391 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1392 } 1393 1394 /* Tell the firmware what we have processed */ 1395 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1396 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1397 } 1398 1399 static void 1400 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1401 { 1402 struct ifnet *ifp = &sc->sc_if; 1403 struct iwi_tx_data *data; 1404 uint32_t hw; 1405 1406 hw = CSR_READ_4(sc, txq->csr_ridx); 1407 1408 for (; txq->next != hw;) { 1409 data = &txq->data[txq->next]; 1410 1411 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1412 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1413 bus_dmamap_unload(sc->sc_dmat, data->map); 1414 m_freem(data->m); 1415 data->m = NULL; 1416 ieee80211_free_node(data->ni); 1417 data->ni = NULL; 1418 1419 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1420 1421 ifp->if_opackets++; 1422 1423 txq->queued--; 1424 txq->next = (txq->next + 1) % txq->count; 1425 } 1426 1427 sc->sc_tx_timer = 0; 1428 ifp->if_flags &= ~IFF_OACTIVE; 1429 1430 /* Call start() since some buffer descriptors have been released */ 1431 (*ifp->if_start)(ifp); 1432 } 1433 1434 static int 1435 iwi_intr(void *arg) 1436 { 1437 struct iwi_softc *sc = arg; 1438 uint32_t r; 1439 1440 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1441 return 0; 1442 1443 /* Acknowledge interrupts */ 1444 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1445 1446 if (r & IWI_INTR_FATAL_ERROR) { 1447 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1448 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1449 iwi_stop(&sc->sc_if, 1); 1450 return (1); 1451 } 1452 1453 if (r & IWI_INTR_FW_INITED) { 1454 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1455 wakeup(sc); 1456 } 1457 1458 if (r & IWI_INTR_RADIO_OFF) { 1459 DPRINTF(("radio transmitter off\n")); 1460 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1461 iwi_stop(&sc->sc_if, 1); 1462 return (1); 1463 } 1464 1465 if (r & IWI_INTR_CMD_DONE) 1466 iwi_cmd_intr(sc); 1467 1468 if (r & IWI_INTR_TX1_DONE) 1469 iwi_tx_intr(sc, &sc->txq[0]); 1470 1471 if (r & IWI_INTR_TX2_DONE) 1472 iwi_tx_intr(sc, &sc->txq[1]); 1473 1474 if (r & IWI_INTR_TX3_DONE) 1475 iwi_tx_intr(sc, &sc->txq[2]); 1476 1477 if (r & IWI_INTR_TX4_DONE) 1478 iwi_tx_intr(sc, &sc->txq[3]); 1479 1480 if (r & IWI_INTR_RX_DONE) 1481 iwi_rx_intr(sc); 1482 1483 if (r & IWI_INTR_PARITY_ERROR) 1484 aprint_error_dev(sc->sc_dev, "parity error\n"); 1485 1486 return 1; 1487 } 1488 1489 static int 1490 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1491 int async) 1492 { 1493 struct iwi_cmd_desc *desc; 1494 1495 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1496 1497 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1498 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1499 desc->type = type; 1500 desc->len = len; 1501 memcpy(desc->data, data, len); 1502 1503 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1504 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1505 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1506 1507 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1508 sc->cmdq.cur, type, len, async)); 1509 1510 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1511 1512 if (++sc->cmdq.queued == 1) 1513 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1514 1515 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1516 } 1517 1518 static void 1519 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1520 { 1521 struct iwi_ibssnode node; 1522 1523 /* write node information into NIC memory */ 1524 memset(&node, 0, sizeof node); 1525 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1526 1527 CSR_WRITE_REGION_1(sc, 1528 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1529 (uint8_t *)&node, sizeof node); 1530 } 1531 1532 static int 1533 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1534 int ac) 1535 { 1536 struct iwi_softc *sc = ifp->if_softc; 1537 struct ieee80211com *ic = &sc->sc_ic; 1538 struct iwi_node *in = (struct iwi_node *)ni; 1539 struct ieee80211_frame *wh; 1540 struct ieee80211_key *k; 1541 const struct chanAccParams *cap; 1542 struct iwi_tx_ring *txq = &sc->txq[ac]; 1543 struct iwi_tx_data *data; 1544 struct iwi_tx_desc *desc; 1545 struct mbuf *mnew; 1546 int error, hdrlen, i, noack = 0; 1547 1548 wh = mtod(m0, struct ieee80211_frame *); 1549 1550 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1551 hdrlen = sizeof (struct ieee80211_qosframe); 1552 cap = &ic->ic_wme.wme_chanParams; 1553 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1554 } else 1555 hdrlen = sizeof (struct ieee80211_frame); 1556 1557 /* 1558 * This is only used in IBSS mode where the firmware expect an index 1559 * in a h/w table instead of a destination address. 1560 */ 1561 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1562 in->in_station = iwi_alloc_unr(sc); 1563 1564 if (in->in_station == -1) { /* h/w table is full */ 1565 m_freem(m0); 1566 ieee80211_free_node(ni); 1567 ifp->if_oerrors++; 1568 return 0; 1569 } 1570 iwi_write_ibssnode(sc, in); 1571 } 1572 1573 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1574 k = ieee80211_crypto_encap(ic, ni, m0); 1575 if (k == NULL) { 1576 m_freem(m0); 1577 return ENOBUFS; 1578 } 1579 1580 /* packet header may have moved, reset our local pointer */ 1581 wh = mtod(m0, struct ieee80211_frame *); 1582 } 1583 1584 if (sc->sc_drvbpf != NULL) { 1585 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1586 1587 tap->wt_flags = 0; 1588 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1589 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1590 1591 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1592 } 1593 1594 data = &txq->data[txq->cur]; 1595 desc = &txq->desc[txq->cur]; 1596 1597 /* save and trim IEEE802.11 header */ 1598 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1599 m_adj(m0, hdrlen); 1600 1601 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1602 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1603 if (error != 0 && error != EFBIG) { 1604 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1605 error); 1606 m_freem(m0); 1607 return error; 1608 } 1609 if (error != 0) { 1610 /* too many fragments, linearize */ 1611 1612 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1613 if (mnew == NULL) { 1614 m_freem(m0); 1615 return ENOMEM; 1616 } 1617 1618 M_COPY_PKTHDR(mnew, m0); 1619 1620 /* If the data won't fit in the header, get a cluster */ 1621 if (m0->m_pkthdr.len > MHLEN) { 1622 MCLGET(mnew, M_DONTWAIT); 1623 if (!(mnew->m_flags & M_EXT)) { 1624 m_freem(m0); 1625 m_freem(mnew); 1626 return ENOMEM; 1627 } 1628 } 1629 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1630 m_freem(m0); 1631 mnew->m_len = mnew->m_pkthdr.len; 1632 m0 = mnew; 1633 1634 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1635 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1636 if (error != 0) { 1637 aprint_error_dev(sc->sc_dev, 1638 "could not map mbuf (error %d)\n", error); 1639 m_freem(m0); 1640 return error; 1641 } 1642 } 1643 1644 data->m = m0; 1645 data->ni = ni; 1646 1647 desc->hdr.type = IWI_HDR_TYPE_DATA; 1648 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1649 desc->station = 1650 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1651 desc->cmd = IWI_DATA_CMD_TX; 1652 desc->len = htole16(m0->m_pkthdr.len); 1653 desc->flags = 0; 1654 desc->xflags = 0; 1655 1656 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1657 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1658 1659 #if 0 1660 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1661 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1662 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1663 } else 1664 #endif 1665 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1666 1667 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1668 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1669 1670 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1671 desc->xflags |= IWI_DATA_XFLAG_QOS; 1672 1673 if (ic->ic_curmode == IEEE80211_MODE_11B) 1674 desc->xflags |= IWI_DATA_XFLAG_CCK; 1675 1676 desc->nseg = htole32(data->map->dm_nsegs); 1677 for (i = 0; i < data->map->dm_nsegs; i++) { 1678 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1679 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1680 } 1681 1682 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1683 txq->cur * IWI_TX_DESC_SIZE, 1684 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1685 1686 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1687 BUS_DMASYNC_PREWRITE); 1688 1689 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1690 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1691 1692 /* Inform firmware about this new packet */ 1693 txq->queued++; 1694 txq->cur = (txq->cur + 1) % txq->count; 1695 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1696 1697 return 0; 1698 } 1699 1700 static void 1701 iwi_start(struct ifnet *ifp) 1702 { 1703 struct iwi_softc *sc = ifp->if_softc; 1704 struct ieee80211com *ic = &sc->sc_ic; 1705 struct mbuf *m0; 1706 struct ether_header *eh; 1707 struct ieee80211_node *ni; 1708 int ac; 1709 1710 if (ic->ic_state != IEEE80211_S_RUN) 1711 return; 1712 1713 for (;;) { 1714 IF_DEQUEUE(&ifp->if_snd, m0); 1715 if (m0 == NULL) 1716 break; 1717 1718 if (m0->m_len < sizeof (struct ether_header) && 1719 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1720 ifp->if_oerrors++; 1721 continue; 1722 } 1723 1724 eh = mtod(m0, struct ether_header *); 1725 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1726 if (ni == NULL) { 1727 m_freem(m0); 1728 ifp->if_oerrors++; 1729 continue; 1730 } 1731 1732 /* classify mbuf so we can find which tx ring to use */ 1733 if (ieee80211_classify(ic, m0, ni) != 0) { 1734 m_freem(m0); 1735 ieee80211_free_node(ni); 1736 ifp->if_oerrors++; 1737 continue; 1738 } 1739 1740 /* no QoS encapsulation for EAPOL frames */ 1741 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1742 M_WME_GETAC(m0) : WME_AC_BE; 1743 1744 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1745 /* there is no place left in this ring */ 1746 IF_PREPEND(&ifp->if_snd, m0); 1747 ifp->if_flags |= IFF_OACTIVE; 1748 break; 1749 } 1750 1751 bpf_mtap(ifp, m0); 1752 1753 m0 = ieee80211_encap(ic, m0, ni); 1754 if (m0 == NULL) { 1755 ieee80211_free_node(ni); 1756 ifp->if_oerrors++; 1757 continue; 1758 } 1759 1760 bpf_mtap3(ic->ic_rawbpf, m0); 1761 1762 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1763 ieee80211_free_node(ni); 1764 ifp->if_oerrors++; 1765 break; 1766 } 1767 1768 /* start watchdog timer */ 1769 sc->sc_tx_timer = 5; 1770 ifp->if_timer = 1; 1771 } 1772 } 1773 1774 static void 1775 iwi_watchdog(struct ifnet *ifp) 1776 { 1777 struct iwi_softc *sc = ifp->if_softc; 1778 1779 ifp->if_timer = 0; 1780 1781 if (sc->sc_tx_timer > 0) { 1782 if (--sc->sc_tx_timer == 0) { 1783 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1784 ifp->if_oerrors++; 1785 ifp->if_flags &= ~IFF_UP; 1786 iwi_stop(ifp, 1); 1787 return; 1788 } 1789 ifp->if_timer = 1; 1790 } 1791 1792 ieee80211_watchdog(&sc->sc_ic); 1793 } 1794 1795 static int 1796 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1797 { 1798 uint32_t size, buf[128]; 1799 1800 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1801 memset(buf, 0, sizeof buf); 1802 return copyout(buf, tbl, sizeof buf); 1803 } 1804 1805 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1806 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1807 1808 return copyout(buf, tbl, sizeof buf); 1809 } 1810 1811 static int 1812 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1813 { 1814 #define IS_RUNNING(ifp) \ 1815 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1816 1817 struct iwi_softc *sc = ifp->if_softc; 1818 struct ieee80211com *ic = &sc->sc_ic; 1819 struct ifreq *ifr = (struct ifreq *)data; 1820 int s, error = 0; 1821 int val; 1822 1823 s = splnet(); 1824 1825 switch (cmd) { 1826 case SIOCSIFFLAGS: 1827 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1828 break; 1829 if (ifp->if_flags & IFF_UP) { 1830 if (!(ifp->if_flags & IFF_RUNNING)) 1831 iwi_init(ifp); 1832 } else { 1833 if (ifp->if_flags & IFF_RUNNING) 1834 iwi_stop(ifp, 1); 1835 } 1836 break; 1837 1838 case SIOCADDMULTI: 1839 case SIOCDELMULTI: 1840 /* XXX no h/w multicast filter? --dyoung */ 1841 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1842 /* setup multicast filter, etc */ 1843 error = 0; 1844 } 1845 break; 1846 1847 case SIOCGTABLE0: 1848 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1849 break; 1850 1851 case SIOCGRADIO: 1852 val = !iwi_getrfkill(sc); 1853 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1854 break; 1855 1856 case SIOCSIFMEDIA: 1857 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1858 sc->sc_fwname = "ipw2200-ibss.fw"; 1859 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1860 sc->sc_fwname = "ipw2200-sniffer.fw"; 1861 } else { 1862 sc->sc_fwname = "ipw2200-bss.fw"; 1863 } 1864 error = iwi_cache_firmware(sc); 1865 if (error) 1866 break; 1867 /* FALLTRHOUGH */ 1868 1869 default: 1870 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1871 1872 if (error == ENETRESET) { 1873 if (IS_RUNNING(ifp) && 1874 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1875 iwi_init(ifp); 1876 error = 0; 1877 } 1878 } 1879 1880 splx(s); 1881 return error; 1882 #undef IS_RUNNING 1883 } 1884 1885 static void 1886 iwi_stop_master(struct iwi_softc *sc) 1887 { 1888 int ntries; 1889 1890 /* Disable interrupts */ 1891 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1892 1893 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1894 for (ntries = 0; ntries < 5; ntries++) { 1895 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1896 break; 1897 DELAY(10); 1898 } 1899 if (ntries == 5) 1900 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1901 1902 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1903 IWI_RST_PRINCETON_RESET); 1904 1905 sc->flags &= ~IWI_FLAG_FW_INITED; 1906 } 1907 1908 static int 1909 iwi_reset(struct iwi_softc *sc) 1910 { 1911 int i, ntries; 1912 1913 iwi_stop_master(sc); 1914 1915 /* Move adapter to D0 state */ 1916 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1917 IWI_CTL_INIT); 1918 1919 /* Initialize Phase-Locked Level (PLL) */ 1920 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1921 1922 /* Wait for clock stabilization */ 1923 for (ntries = 0; ntries < 1000; ntries++) { 1924 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1925 break; 1926 DELAY(200); 1927 } 1928 if (ntries == 1000) { 1929 aprint_error_dev(sc->sc_dev, 1930 "timeout waiting for clock stabilization\n"); 1931 return ETIMEDOUT; 1932 } 1933 1934 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1935 IWI_RST_SW_RESET); 1936 1937 DELAY(10); 1938 1939 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1940 IWI_CTL_INIT); 1941 1942 /* Clear NIC memory */ 1943 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1944 for (i = 0; i < 0xc000; i++) 1945 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1946 1947 return 0; 1948 } 1949 1950 static int 1951 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1952 { 1953 uint16_t *w; 1954 int ntries, i; 1955 1956 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1957 IWI_RST_STOP_MASTER); 1958 for (ntries = 0; ntries < 5; ntries++) { 1959 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1960 break; 1961 DELAY(10); 1962 } 1963 if (ntries == 5) { 1964 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1965 return ETIMEDOUT; 1966 } 1967 1968 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1969 DELAY(5000); 1970 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1971 ~IWI_RST_PRINCETON_RESET); 1972 DELAY(5000); 1973 MEM_WRITE_4(sc, 0x3000e0, 0); 1974 DELAY(1000); 1975 MEM_WRITE_4(sc, 0x300004, 1); 1976 DELAY(1000); 1977 MEM_WRITE_4(sc, 0x300004, 0); 1978 DELAY(1000); 1979 MEM_WRITE_1(sc, 0x200000, 0x00); 1980 MEM_WRITE_1(sc, 0x200000, 0x40); 1981 DELAY(1000); 1982 1983 /* Adapter is buggy, we must set the address for each word */ 1984 for (w = uc; size > 0; w++, size -= 2) 1985 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1986 1987 MEM_WRITE_1(sc, 0x200000, 0x00); 1988 MEM_WRITE_1(sc, 0x200000, 0x80); 1989 1990 /* Wait until we get a response in the uc queue */ 1991 for (ntries = 0; ntries < 100; ntries++) { 1992 if (MEM_READ_1(sc, 0x200000) & 1) 1993 break; 1994 DELAY(100); 1995 } 1996 if (ntries == 100) { 1997 aprint_error_dev(sc->sc_dev, 1998 "timeout waiting for ucode to initialize\n"); 1999 return ETIMEDOUT; 2000 } 2001 2002 /* Empty the uc queue or the firmware will not initialize properly */ 2003 for (i = 0; i < 7; i++) 2004 MEM_READ_4(sc, 0x200004); 2005 2006 MEM_WRITE_1(sc, 0x200000, 0x00); 2007 2008 return 0; 2009 } 2010 2011 /* macro to handle unaligned little endian data in firmware image */ 2012 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2013 static int 2014 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2015 { 2016 bus_dmamap_t map; 2017 u_char *p, *end; 2018 uint32_t sentinel, ctl, sum; 2019 uint32_t cs, sl, cd, cl; 2020 int ntries, nsegs, error; 2021 int sn; 2022 2023 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2024 2025 /* Create a DMA map for the firmware image */ 2026 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2027 BUS_DMA_NOWAIT, &map); 2028 if (error != 0) { 2029 aprint_error_dev(sc->sc_dev, 2030 "could not create firmware DMA map\n"); 2031 map = NULL; 2032 goto fail1; 2033 } 2034 2035 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2036 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2037 if (error != 0) { 2038 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2039 error); 2040 goto fail2; 2041 } 2042 2043 /* Make sure the adapter will get up-to-date values */ 2044 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2045 2046 /* Tell the adapter where the command blocks are stored */ 2047 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2048 2049 /* 2050 * Store command blocks into adapter's internal memory using register 2051 * indirections. The adapter will read the firmware image through DMA 2052 * using information stored in command blocks. 2053 */ 2054 p = fw; 2055 end = p + size; 2056 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2057 2058 sn = 0; 2059 sl = cl = 0; 2060 cs = cd = 0; 2061 while (p < end) { 2062 if (sl == 0) { 2063 cs = map->dm_segs[sn].ds_addr; 2064 sl = map->dm_segs[sn].ds_len; 2065 sn++; 2066 } 2067 if (cl == 0) { 2068 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2069 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2070 } 2071 while (sl > 0 && cl > 0) { 2072 int len = min(cl, sl); 2073 2074 sl -= len; 2075 cl -= len; 2076 p += len; 2077 2078 while (len > 0) { 2079 int mlen = min(len, IWI_CB_MAXDATALEN); 2080 2081 ctl = IWI_CB_DEFAULT_CTL | mlen; 2082 sum = ctl ^ cs ^ cd; 2083 2084 /* Write a command block */ 2085 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2086 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2087 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2088 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2089 2090 cs += mlen; 2091 cd += mlen; 2092 len -= mlen; 2093 } 2094 } 2095 } 2096 2097 /* Write a fictive final command block (sentinel) */ 2098 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2099 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2100 2101 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2102 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2103 2104 /* Tell the adapter to start processing command blocks */ 2105 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2106 2107 /* Wait until the adapter has processed all command blocks */ 2108 for (ntries = 0; ntries < 400; ntries++) { 2109 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2110 break; 2111 DELAY(100); 2112 } 2113 if (ntries == 400) { 2114 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2115 error = ETIMEDOUT; 2116 goto fail3; 2117 } 2118 2119 /* We're done with command blocks processing */ 2120 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2121 2122 /* Allow interrupts so we know when the firmware is inited */ 2123 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2124 2125 /* Tell the adapter to initialize the firmware */ 2126 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2127 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2128 IWI_CTL_ALLOW_STANDBY); 2129 2130 /* Wait at most one second for firmware initialization to complete */ 2131 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2132 aprint_error_dev(sc->sc_dev, 2133 "timeout waiting for firmware initialization to complete\n"); 2134 goto fail3; 2135 } 2136 2137 fail3: 2138 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2139 bus_dmamap_unload(sc->sc_dmat, map); 2140 fail2: 2141 if (map != NULL) 2142 bus_dmamap_destroy(sc->sc_dmat, map); 2143 2144 fail1: 2145 return error; 2146 } 2147 2148 /* 2149 * Store firmware into kernel memory so we can download it when we need to, 2150 * e.g when the adapter wakes up from suspend mode. 2151 */ 2152 static int 2153 iwi_cache_firmware(struct iwi_softc *sc) 2154 { 2155 struct iwi_firmware *kfw = &sc->fw; 2156 firmware_handle_t fwh; 2157 const struct iwi_firmware_hdr *hdr; 2158 off_t size; 2159 char *fw; 2160 int error; 2161 2162 if (iwi_accept_eula == 0) { 2163 aprint_error_dev(sc->sc_dev, 2164 "EULA not accepted; please see the iwi(4) man page.\n"); 2165 return EPERM; 2166 } 2167 2168 iwi_free_firmware(sc); 2169 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2170 if (error != 0) { 2171 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2172 goto fail1; 2173 } 2174 2175 size = firmware_get_size(fwh); 2176 if (size < sizeof(struct iwi_firmware_hdr)) { 2177 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2178 sc->sc_fwname); 2179 error = EIO; 2180 goto fail1; 2181 } 2182 2183 sc->sc_blob = firmware_malloc(size); 2184 if (sc->sc_blob == NULL) { 2185 error = ENOMEM; 2186 firmware_close(fwh); 2187 goto fail1; 2188 } 2189 2190 error = firmware_read(fwh, 0, sc->sc_blob, size); 2191 firmware_close(fwh); 2192 if (error != 0) 2193 goto fail2; 2194 2195 2196 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2197 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2198 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2199 sc->sc_fwname); 2200 error = EIO; 2201 goto fail2; 2202 } 2203 2204 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2205 DPRINTF(("firmware version = %d\n", le32toh(hdr->version))); 2206 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2207 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2208 aprint_error_dev(sc->sc_dev, 2209 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2210 IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2211 IWI_FW_GET_MINOR(le32toh(hdr->version)), 2212 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2213 error = EIO; 2214 goto fail2; 2215 } 2216 2217 kfw->boot_size = hdr->bsize; 2218 kfw->ucode_size = hdr->usize; 2219 kfw->main_size = hdr->fsize; 2220 2221 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2222 kfw->boot = fw; 2223 fw += kfw->boot_size; 2224 kfw->ucode = fw; 2225 fw += kfw->ucode_size; 2226 kfw->main = fw; 2227 2228 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2229 kfw->boot, kfw->ucode, kfw->main)); 2230 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2231 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2232 2233 sc->flags |= IWI_FLAG_FW_CACHED; 2234 2235 return 0; 2236 2237 2238 fail2: firmware_free(sc->sc_blob, 0); 2239 fail1: 2240 return error; 2241 } 2242 2243 static void 2244 iwi_free_firmware(struct iwi_softc *sc) 2245 { 2246 2247 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2248 return; 2249 2250 firmware_free(sc->sc_blob, 0); 2251 2252 sc->flags &= ~IWI_FLAG_FW_CACHED; 2253 } 2254 2255 static int 2256 iwi_config(struct iwi_softc *sc) 2257 { 2258 struct ieee80211com *ic = &sc->sc_ic; 2259 struct ifnet *ifp = &sc->sc_if; 2260 struct iwi_configuration config; 2261 struct iwi_rateset rs; 2262 struct iwi_txpower power; 2263 struct ieee80211_key *wk; 2264 struct iwi_wep_key wepkey; 2265 uint32_t data; 2266 int error, nchan, i; 2267 2268 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2269 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2270 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2271 IEEE80211_ADDR_LEN, 0); 2272 if (error != 0) 2273 return error; 2274 2275 memset(&config, 0, sizeof config); 2276 config.bluetooth_coexistence = sc->bluetooth; 2277 config.antenna = sc->antenna; 2278 config.silence_threshold = 0x1e; 2279 config.multicast_enabled = 1; 2280 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2281 config.disable_unicast_decryption = 1; 2282 config.disable_multicast_decryption = 1; 2283 DPRINTF(("Configuring adapter\n")); 2284 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2285 0); 2286 if (error != 0) 2287 return error; 2288 2289 data = htole32(IWI_POWER_MODE_CAM); 2290 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2291 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2292 if (error != 0) 2293 return error; 2294 2295 data = htole32(ic->ic_rtsthreshold); 2296 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2297 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2298 if (error != 0) 2299 return error; 2300 2301 data = htole32(ic->ic_fragthreshold); 2302 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2303 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2304 if (error != 0) 2305 return error; 2306 2307 /* 2308 * Set default Tx power for 802.11b/g and 802.11a channels. 2309 */ 2310 nchan = 0; 2311 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2312 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2313 continue; 2314 power.chan[nchan].chan = i; 2315 power.chan[nchan].power = IWI_TXPOWER_MAX; 2316 nchan++; 2317 } 2318 power.nchan = nchan; 2319 2320 power.mode = IWI_MODE_11G; 2321 DPRINTF(("Setting .11g channels tx power\n")); 2322 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2323 if (error != 0) 2324 return error; 2325 2326 power.mode = IWI_MODE_11B; 2327 DPRINTF(("Setting .11b channels tx power\n")); 2328 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2329 if (error != 0) 2330 return error; 2331 2332 nchan = 0; 2333 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2334 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2335 continue; 2336 power.chan[nchan].chan = i; 2337 power.chan[nchan].power = IWI_TXPOWER_MAX; 2338 nchan++; 2339 } 2340 power.nchan = nchan; 2341 2342 if (nchan > 0) { /* 2915ABG only */ 2343 power.mode = IWI_MODE_11A; 2344 DPRINTF(("Setting .11a channels tx power\n")); 2345 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2346 0); 2347 if (error != 0) 2348 return error; 2349 } 2350 2351 rs.mode = IWI_MODE_11G; 2352 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2353 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2354 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2355 rs.nrates); 2356 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2357 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2358 if (error != 0) 2359 return error; 2360 2361 rs.mode = IWI_MODE_11A; 2362 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2363 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2364 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2365 rs.nrates); 2366 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2367 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2368 if (error != 0) 2369 return error; 2370 2371 /* if we have a desired ESSID, set it now */ 2372 if (ic->ic_des_esslen != 0) { 2373 #ifdef IWI_DEBUG 2374 if (iwi_debug > 0) { 2375 printf("Setting desired ESSID to "); 2376 ieee80211_print_essid(ic->ic_des_essid, 2377 ic->ic_des_esslen); 2378 printf("\n"); 2379 } 2380 #endif 2381 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2382 ic->ic_des_esslen, 0); 2383 if (error != 0) 2384 return error; 2385 } 2386 2387 cprng_fast(&data, sizeof(data)); 2388 data = htole32(data); 2389 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2390 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2391 if (error != 0) 2392 return error; 2393 2394 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2395 /* XXX iwi_setwepkeys? */ 2396 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2397 wk = &ic->ic_crypto.cs_nw_keys[i]; 2398 2399 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2400 wepkey.idx = i; 2401 wepkey.len = wk->wk_keylen; 2402 memset(wepkey.key, 0, sizeof wepkey.key); 2403 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2404 DPRINTF(("Setting wep key index %u len %u\n", 2405 wepkey.idx, wepkey.len)); 2406 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2407 sizeof wepkey, 0); 2408 if (error != 0) 2409 return error; 2410 } 2411 } 2412 2413 /* Enable adapter */ 2414 DPRINTF(("Enabling adapter\n")); 2415 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2416 } 2417 2418 static int 2419 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2420 { 2421 struct ieee80211com *ic = &sc->sc_ic; 2422 struct iwi_scan_v2 scan; 2423 2424 (void)memset(&scan, 0, sizeof scan); 2425 2426 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2427 scan.channels[0] = 1 | 2428 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2429 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2430 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2431 2432 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2433 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2434 } 2435 2436 static int 2437 iwi_scan(struct iwi_softc *sc) 2438 { 2439 struct ieee80211com *ic = &sc->sc_ic; 2440 struct iwi_scan_v2 scan; 2441 uint32_t type; 2442 uint8_t *p; 2443 int i, count, idx; 2444 2445 (void)memset(&scan, 0, sizeof scan); 2446 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2447 htole16(sc->dwelltime); 2448 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2449 htole16(sc->dwelltime); 2450 2451 /* tell the firmware about the desired essid */ 2452 if (ic->ic_des_esslen) { 2453 int error; 2454 2455 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2456 __func__, ic->ic_des_essid)); 2457 2458 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2459 ic->ic_des_essid, ic->ic_des_esslen, 1); 2460 if (error) 2461 return error; 2462 2463 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2464 } else { 2465 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2466 } 2467 2468 p = &scan.channels[0]; 2469 count = idx = 0; 2470 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2471 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2472 isset(ic->ic_chan_active, i)) { 2473 *++p = i; 2474 count++; 2475 idx++; 2476 iwi_scan_type_set(scan, idx, type); 2477 } 2478 } 2479 if (count) { 2480 *(p - count) = IWI_CHAN_5GHZ | count; 2481 p++; 2482 } 2483 2484 count = 0; 2485 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2486 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2487 isset(ic->ic_chan_active, i)) { 2488 *++p = i; 2489 count++; 2490 idx++; 2491 iwi_scan_type_set(scan, idx, type); 2492 } 2493 } 2494 *(p - count) = IWI_CHAN_2GHZ | count; 2495 2496 DPRINTF(("Start scanning\n")); 2497 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2498 } 2499 2500 static int 2501 iwi_auth_and_assoc(struct iwi_softc *sc) 2502 { 2503 struct ieee80211com *ic = &sc->sc_ic; 2504 struct ieee80211_node *ni = ic->ic_bss; 2505 struct ifnet *ifp = &sc->sc_if; 2506 struct ieee80211_wme_info wme; 2507 struct iwi_configuration config; 2508 struct iwi_associate assoc; 2509 struct iwi_rateset rs; 2510 uint16_t capinfo; 2511 uint32_t data; 2512 int error; 2513 2514 memset(&config, 0, sizeof config); 2515 config.bluetooth_coexistence = sc->bluetooth; 2516 config.antenna = sc->antenna; 2517 config.multicast_enabled = 1; 2518 config.silence_threshold = 0x1e; 2519 if (ic->ic_curmode == IEEE80211_MODE_11G) 2520 config.use_protection = 1; 2521 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2522 config.disable_unicast_decryption = 1; 2523 config.disable_multicast_decryption = 1; 2524 2525 DPRINTF(("Configuring adapter\n")); 2526 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2527 sizeof config, 1); 2528 if (error != 0) 2529 return error; 2530 2531 #ifdef IWI_DEBUG 2532 if (iwi_debug > 0) { 2533 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2534 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2535 aprint_debug("\n"); 2536 } 2537 #endif 2538 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2539 if (error != 0) 2540 return error; 2541 2542 /* the rate set has already been "negotiated" */ 2543 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2544 IWI_MODE_11G; 2545 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2546 rs.nrates = ni->ni_rates.rs_nrates; 2547 2548 if (rs.nrates > IWI_RATESET_SIZE) { 2549 DPRINTF(("Truncating negotiated rate set from %u\n", 2550 rs.nrates)); 2551 rs.nrates = IWI_RATESET_SIZE; 2552 } 2553 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2554 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2555 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2556 if (error != 0) 2557 return error; 2558 2559 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2560 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2561 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2562 wme.wme_oui[0] = 0x00; 2563 wme.wme_oui[1] = 0x50; 2564 wme.wme_oui[2] = 0xf2; 2565 wme.wme_type = WME_OUI_TYPE; 2566 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2567 wme.wme_version = WME_VERSION; 2568 wme.wme_info = 0; 2569 2570 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2571 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2572 if (error != 0) 2573 return error; 2574 } 2575 2576 if (ic->ic_opt_ie != NULL) { 2577 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2578 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2579 ic->ic_opt_ie_len, 1); 2580 if (error != 0) 2581 return error; 2582 } 2583 data = htole32(ni->ni_rssi); 2584 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2585 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2586 if (error != 0) 2587 return error; 2588 2589 memset(&assoc, 0, sizeof assoc); 2590 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2591 assoc.mode = IWI_MODE_11A; 2592 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2593 assoc.mode = IWI_MODE_11G; 2594 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2595 assoc.mode = IWI_MODE_11B; 2596 2597 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2598 2599 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2600 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2601 2602 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2603 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2604 2605 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2606 assoc.policy |= htole16(IWI_POLICY_WME); 2607 if (ic->ic_flags & IEEE80211_F_WPA) 2608 assoc.policy |= htole16(IWI_POLICY_WPA); 2609 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2610 assoc.type = IWI_HC_IBSS_START; 2611 else 2612 assoc.type = IWI_HC_ASSOC; 2613 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2614 2615 if (ic->ic_opmode == IEEE80211_M_IBSS) 2616 capinfo = IEEE80211_CAPINFO_IBSS; 2617 else 2618 capinfo = IEEE80211_CAPINFO_ESS; 2619 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2620 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2621 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2622 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2623 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2624 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2625 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2626 assoc.capinfo = htole16(capinfo); 2627 2628 assoc.lintval = htole16(ic->ic_lintval); 2629 assoc.intval = htole16(ni->ni_intval); 2630 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2631 if (ic->ic_opmode == IEEE80211_M_IBSS) 2632 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2633 else 2634 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2635 2636 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2637 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2638 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2639 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2640 assoc.chan, le16toh(assoc.policy), assoc.auth, 2641 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2642 le16toh(assoc.intval))); 2643 2644 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2645 } 2646 2647 static int 2648 iwi_init(struct ifnet *ifp) 2649 { 2650 struct iwi_softc *sc = ifp->if_softc; 2651 struct ieee80211com *ic = &sc->sc_ic; 2652 struct iwi_firmware *fw = &sc->fw; 2653 int i, error; 2654 2655 /* exit immediately if firmware has not been ioctl'd */ 2656 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2657 if ((error = iwi_cache_firmware(sc)) != 0) { 2658 aprint_error_dev(sc->sc_dev, 2659 "could not cache the firmware\n"); 2660 goto fail; 2661 } 2662 } 2663 2664 iwi_stop(ifp, 0); 2665 2666 if ((error = iwi_reset(sc)) != 0) { 2667 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2668 goto fail; 2669 } 2670 2671 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2672 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2673 goto fail; 2674 } 2675 2676 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2677 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2678 goto fail; 2679 } 2680 2681 iwi_stop_master(sc); 2682 2683 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2684 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2685 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2686 2687 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2688 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2689 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2690 2691 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2692 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2693 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2694 2695 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2696 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2697 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2698 2699 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2700 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2701 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2702 2703 for (i = 0; i < sc->rxq.count; i++) 2704 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2705 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2706 2707 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2708 2709 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2710 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2711 goto fail; 2712 } 2713 2714 sc->flags |= IWI_FLAG_FW_INITED; 2715 2716 if ((error = iwi_config(sc)) != 0) { 2717 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2718 goto fail; 2719 } 2720 2721 ic->ic_state = IEEE80211_S_INIT; 2722 2723 ifp->if_flags &= ~IFF_OACTIVE; 2724 ifp->if_flags |= IFF_RUNNING; 2725 2726 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2727 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2728 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2729 } else 2730 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2731 2732 return 0; 2733 2734 fail: ifp->if_flags &= ~IFF_UP; 2735 iwi_stop(ifp, 0); 2736 2737 return error; 2738 } 2739 2740 2741 /* 2742 * Return whether or not the radio is enabled in hardware 2743 * (i.e. the rfkill switch is "off"). 2744 */ 2745 static int 2746 iwi_getrfkill(struct iwi_softc *sc) 2747 { 2748 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2749 } 2750 2751 static int 2752 iwi_sysctl_radio(SYSCTLFN_ARGS) 2753 { 2754 struct sysctlnode node; 2755 struct iwi_softc *sc; 2756 int val, error; 2757 2758 node = *rnode; 2759 sc = (struct iwi_softc *)node.sysctl_data; 2760 2761 val = !iwi_getrfkill(sc); 2762 2763 node.sysctl_data = &val; 2764 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2765 2766 if (error || newp == NULL) 2767 return error; 2768 2769 return 0; 2770 } 2771 2772 #ifdef IWI_DEBUG 2773 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2774 { 2775 int rc; 2776 const struct sysctlnode *rnode; 2777 const struct sysctlnode *cnode; 2778 2779 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2780 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2781 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2782 goto err; 2783 2784 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2785 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2786 SYSCTL_DESCR("iwi global controls"), 2787 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2788 goto err; 2789 2790 /* control debugging printfs */ 2791 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2792 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2793 "debug", SYSCTL_DESCR("Enable debugging output"), 2794 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2795 goto err; 2796 2797 return; 2798 err: 2799 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2800 } 2801 2802 #endif /* IWI_DEBUG */ 2803 2804 /* 2805 * Add sysctl knobs. 2806 */ 2807 static void 2808 iwi_sysctlattach(struct iwi_softc *sc) 2809 { 2810 int rc; 2811 const struct sysctlnode *rnode; 2812 const struct sysctlnode *cnode; 2813 2814 struct sysctllog **clog = &sc->sc_sysctllog; 2815 2816 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2817 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2818 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2819 goto err; 2820 2821 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2822 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2823 SYSCTL_DESCR("iwi controls and statistics"), 2824 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2825 goto err; 2826 2827 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2828 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2829 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2830 iwi_sysctl_radio, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2831 goto err; 2832 2833 sc->dwelltime = 100; 2834 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2835 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2836 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2837 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2838 goto err; 2839 2840 sc->bluetooth = 0; 2841 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2842 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2843 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2844 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2845 goto err; 2846 2847 sc->antenna = IWI_ANTENNA_AUTO; 2848 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2849 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2850 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2851 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2852 goto err; 2853 2854 return; 2855 err: 2856 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2857 } 2858 2859 static void 2860 iwi_stop(struct ifnet *ifp, int disable) 2861 { 2862 struct iwi_softc *sc = ifp->if_softc; 2863 struct ieee80211com *ic = &sc->sc_ic; 2864 2865 IWI_LED_OFF(sc); 2866 2867 iwi_stop_master(sc); 2868 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2869 2870 /* reset rings */ 2871 iwi_reset_cmd_ring(sc, &sc->cmdq); 2872 iwi_reset_tx_ring(sc, &sc->txq[0]); 2873 iwi_reset_tx_ring(sc, &sc->txq[1]); 2874 iwi_reset_tx_ring(sc, &sc->txq[2]); 2875 iwi_reset_tx_ring(sc, &sc->txq[3]); 2876 iwi_reset_rx_ring(sc, &sc->rxq); 2877 2878 ifp->if_timer = 0; 2879 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2880 2881 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2882 } 2883 2884 static void 2885 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2886 { 2887 uint32_t val; 2888 2889 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2890 2891 switch (sc->nictype) { 2892 case 1: 2893 /* special NIC type: reversed leds */ 2894 if (state == IWI_LED_ACTIVITY) { 2895 state &= ~IWI_LED_ACTIVITY; 2896 state |= IWI_LED_ASSOCIATED; 2897 } else if (state == IWI_LED_ASSOCIATED) { 2898 state &= ~IWI_LED_ASSOCIATED; 2899 state |= IWI_LED_ACTIVITY; 2900 } 2901 /* and ignore toggle effect */ 2902 val |= state; 2903 break; 2904 case 0: 2905 case 2: 2906 case 3: 2907 case 4: 2908 val = (toggle && (val & state)) ? val & ~state : val | state; 2909 break; 2910 default: 2911 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2912 sc->nictype); 2913 return; 2914 break; 2915 } 2916 2917 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2918 2919 return; 2920 } 2921 2922 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2923 { 2924 const struct sysctlnode *rnode; 2925 const struct sysctlnode *cnode; 2926 2927 sysctl_createv(NULL, 0, NULL, &rnode, 2928 CTLFLAG_PERMANENT, 2929 CTLTYPE_NODE, "hw", 2930 NULL, 2931 NULL, 0, 2932 NULL, 0, 2933 CTL_HW, CTL_EOL); 2934 2935 sysctl_createv(NULL, 0, &rnode, &rnode, 2936 CTLFLAG_PERMANENT, 2937 CTLTYPE_NODE, "iwi", 2938 NULL, 2939 NULL, 0, 2940 NULL, 0, 2941 CTL_CREATE, CTL_EOL); 2942 2943 sysctl_createv(NULL, 0, &rnode, &cnode, 2944 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2945 CTLTYPE_INT, "accept_eula", 2946 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2947 NULL, 0, 2948 &iwi_accept_eula, sizeof(iwi_accept_eula), 2949 CTL_CREATE, CTL_EOL); 2950 } 2951