1 /* $NetBSD: if_iwi.c,v 1.100 2016/08/03 19:59:57 mlelstv 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 1.100 2016/08/03 19:59:57 mlelstv Exp $"); 23 24 /*- 25 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 26 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 27 */ 28 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/sysctl.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/conf.h> 39 #include <sys/kauth.h> 40 #include <sys/proc.h> 41 #include <sys/cprng.h> 42 43 #include <sys/bus.h> 44 #include <machine/endian.h> 45 #include <sys/intr.h> 46 47 #include <dev/firmload.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 #include <net/bpf.h> 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/if_dl.h> 57 #include <net/if_ether.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_radiotap.h> 63 64 #include <netinet/in.h> 65 #include <netinet/in_systm.h> 66 #include <netinet/in_var.h> 67 #include <netinet/ip.h> 68 69 #include <dev/pci/if_iwireg.h> 70 #include <dev/pci/if_iwivar.h> 71 72 #ifdef IWI_DEBUG 73 #define DPRINTF(x) if (iwi_debug > 0) printf x 74 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 75 int iwi_debug = 4; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n, x) 79 #endif 80 81 /* Permit loading the Intel firmware */ 82 static int iwi_accept_eula; 83 84 static int iwi_match(device_t, cfdata_t, void *); 85 static void iwi_attach(device_t, device_t, void *); 86 static int iwi_detach(device_t, int); 87 88 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 89 int); 90 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 91 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 92 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 93 int, bus_size_t, bus_size_t); 94 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 95 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 96 static struct mbuf * 97 iwi_alloc_rx_buf(struct iwi_softc *sc); 98 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 99 int); 100 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 101 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 102 103 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 104 static void iwi_node_free(struct ieee80211_node *); 105 106 static int iwi_cvtrate(int); 107 static int iwi_media_change(struct ifnet *); 108 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 109 static int iwi_wme_update(struct ieee80211com *); 110 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 111 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 112 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 113 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 114 struct iwi_frame *); 115 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 116 static void iwi_cmd_intr(struct iwi_softc *); 117 static void iwi_rx_intr(struct iwi_softc *); 118 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 119 static int iwi_intr(void *); 120 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 121 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 122 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 123 int); 124 static void iwi_start(struct ifnet *); 125 static void iwi_watchdog(struct ifnet *); 126 127 static int iwi_alloc_unr(struct iwi_softc *); 128 static void iwi_free_unr(struct iwi_softc *, int); 129 130 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 131 132 static int iwi_ioctl(struct ifnet *, u_long, void *); 133 static void iwi_stop_master(struct iwi_softc *); 134 static int iwi_reset(struct iwi_softc *); 135 static int iwi_load_ucode(struct iwi_softc *, void *, int); 136 static int iwi_load_firmware(struct iwi_softc *, void *, int); 137 static int iwi_cache_firmware(struct iwi_softc *); 138 static void iwi_free_firmware(struct iwi_softc *); 139 static int iwi_config(struct iwi_softc *); 140 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 141 static int iwi_scan(struct iwi_softc *); 142 static int iwi_auth_and_assoc(struct iwi_softc *); 143 static int iwi_init(struct ifnet *); 144 static void iwi_stop(struct ifnet *, int); 145 static int iwi_getrfkill(struct iwi_softc *); 146 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 147 static void iwi_sysctlattach(struct iwi_softc *); 148 149 /* 150 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 151 */ 152 static const struct ieee80211_rateset iwi_rateset_11a = 153 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 154 155 static const struct ieee80211_rateset iwi_rateset_11b = 156 { 4, { 2, 4, 11, 22 } }; 157 158 static const struct ieee80211_rateset iwi_rateset_11g = 159 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 160 161 static inline uint8_t 162 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 163 { 164 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 165 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 166 } 167 168 static inline uint32_t 169 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 170 { 171 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 172 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 173 } 174 175 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 176 iwi_detach, NULL); 177 178 static int 179 iwi_match(device_t parent, cfdata_t match, void *aux) 180 { 181 struct pci_attach_args *pa = aux; 182 183 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 184 return 0; 185 186 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 187 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 190 return 1; 191 192 return 0; 193 } 194 195 /* Base Address Register */ 196 #define IWI_PCI_BAR0 0x10 197 198 static void 199 iwi_attach(device_t parent, device_t self, void *aux) 200 { 201 struct iwi_softc *sc = device_private(self); 202 struct ieee80211com *ic = &sc->sc_ic; 203 struct ifnet *ifp = &sc->sc_if; 204 struct pci_attach_args *pa = aux; 205 const char *intrstr; 206 bus_space_tag_t memt; 207 bus_space_handle_t memh; 208 pci_intr_handle_t ih; 209 pcireg_t data; 210 uint16_t val; 211 int error, i; 212 char intrbuf[PCI_INTRSTR_LEN]; 213 214 sc->sc_dev = self; 215 sc->sc_pct = pa->pa_pc; 216 sc->sc_pcitag = pa->pa_tag; 217 218 pci_aprint_devinfo(pa, NULL); 219 220 /* clear unit numbers allocated to IBSS */ 221 sc->sc_unr = 0; 222 223 /* power up chip */ 224 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 225 NULL)) && error != EOPNOTSUPP) { 226 aprint_error_dev(self, "cannot activate %d\n", error); 227 return; 228 } 229 230 /* clear device specific PCI configuration register 0x41 */ 231 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 232 data &= ~0x0000ff00; 233 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 234 235 236 /* enable bus-mastering */ 237 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 238 data |= PCI_COMMAND_MASTER_ENABLE; 239 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 240 241 /* map the register window */ 242 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 243 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 244 if (error != 0) { 245 aprint_error_dev(self, "could not map memory space\n"); 246 return; 247 } 248 249 sc->sc_st = memt; 250 sc->sc_sh = memh; 251 sc->sc_dmat = pa->pa_dmat; 252 253 /* disable interrupts */ 254 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 255 256 if (pci_intr_map(pa, &ih) != 0) { 257 aprint_error_dev(self, "could not map interrupt\n"); 258 return; 259 } 260 261 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 262 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 263 if (sc->sc_ih == NULL) { 264 aprint_error_dev(self, "could not establish interrupt"); 265 if (intrstr != NULL) 266 aprint_error(" at %s", intrstr); 267 aprint_error("\n"); 268 return; 269 } 270 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 271 272 if (iwi_reset(sc) != 0) { 273 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 274 aprint_error_dev(self, "could not reset adapter\n"); 275 return; 276 } 277 278 ic->ic_ifp = ifp; 279 ic->ic_wme.wme_update = iwi_wme_update; 280 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 281 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 282 ic->ic_state = IEEE80211_S_INIT; 283 284 sc->sc_fwname = "ipw2200-bss.fw"; 285 286 /* set device capabilities */ 287 ic->ic_caps = 288 IEEE80211_C_IBSS | /* IBSS mode supported */ 289 IEEE80211_C_MONITOR | /* monitor mode supported */ 290 IEEE80211_C_TXPMGT | /* tx power management */ 291 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 292 IEEE80211_C_SHSLOT | /* short slot time supported */ 293 IEEE80211_C_WPA | /* 802.11i */ 294 IEEE80211_C_WME; /* 802.11e */ 295 296 /* read MAC address from EEPROM */ 297 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 298 ic->ic_myaddr[0] = val & 0xff; 299 ic->ic_myaddr[1] = val >> 8; 300 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 301 ic->ic_myaddr[2] = val & 0xff; 302 ic->ic_myaddr[3] = val >> 8; 303 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 304 ic->ic_myaddr[4] = val & 0xff; 305 ic->ic_myaddr[5] = val >> 8; 306 307 aprint_verbose_dev(self, "802.11 address %s\n", 308 ether_sprintf(ic->ic_myaddr)); 309 310 /* read the NIC type from EEPROM */ 311 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 312 sc->nictype = val & 0xff; 313 314 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 315 316 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 317 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 318 /* set supported .11a rates (2915ABG only) */ 319 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 320 321 /* set supported .11a channels */ 322 for (i = 36; i <= 64; i += 4) { 323 ic->ic_channels[i].ic_freq = 324 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 325 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 326 } 327 for (i = 149; i <= 165; i += 4) { 328 ic->ic_channels[i].ic_freq = 329 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 330 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 331 } 332 } 333 334 /* set supported .11b and .11g rates */ 335 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 336 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 337 338 /* set supported .11b and .11g channels (1 through 14) */ 339 for (i = 1; i <= 14; i++) { 340 ic->ic_channels[i].ic_freq = 341 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 342 ic->ic_channels[i].ic_flags = 343 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 344 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 345 } 346 347 ifp->if_softc = sc; 348 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 349 ifp->if_init = iwi_init; 350 ifp->if_stop = iwi_stop; 351 ifp->if_ioctl = iwi_ioctl; 352 ifp->if_start = iwi_start; 353 ifp->if_watchdog = iwi_watchdog; 354 IFQ_SET_READY(&ifp->if_snd); 355 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 356 357 if_attach(ifp); 358 ieee80211_ifattach(ic); 359 /* override default methods */ 360 ic->ic_node_alloc = iwi_node_alloc; 361 sc->sc_node_free = ic->ic_node_free; 362 ic->ic_node_free = iwi_node_free; 363 /* override state transition machine */ 364 sc->sc_newstate = ic->ic_newstate; 365 ic->ic_newstate = iwi_newstate; 366 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 367 368 /* 369 * Allocate rings. 370 */ 371 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 372 aprint_error_dev(self, "could not allocate command ring\n"); 373 goto fail; 374 } 375 376 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 377 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 378 if (error != 0) { 379 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 380 goto fail; 381 } 382 383 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 384 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 385 if (error != 0) { 386 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 387 goto fail; 388 } 389 390 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 391 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 392 if (error != 0) { 393 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 394 goto fail; 395 } 396 397 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 398 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 399 if (error != 0) { 400 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 401 goto fail; 402 } 403 404 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 405 aprint_error_dev(self, "could not allocate Rx ring\n"); 406 goto fail; 407 } 408 409 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 410 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 411 412 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 413 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 414 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 415 416 sc->sc_txtap_len = sizeof sc->sc_txtapu; 417 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 418 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 419 420 iwi_sysctlattach(sc); 421 422 if (pmf_device_register(self, NULL, NULL)) 423 pmf_class_network_register(self, ifp); 424 else 425 aprint_error_dev(self, "couldn't establish power handler\n"); 426 427 ieee80211_announce(ic); 428 429 return; 430 431 fail: iwi_detach(self, 0); 432 } 433 434 static int 435 iwi_detach(device_t self, int flags) 436 { 437 struct iwi_softc *sc = device_private(self); 438 struct ifnet *ifp = &sc->sc_if; 439 440 pmf_device_deregister(self); 441 442 if (ifp != NULL) 443 iwi_stop(ifp, 1); 444 445 iwi_free_firmware(sc); 446 447 ieee80211_ifdetach(&sc->sc_ic); 448 if (ifp != NULL) 449 if_detach(ifp); 450 451 iwi_free_cmd_ring(sc, &sc->cmdq); 452 iwi_free_tx_ring(sc, &sc->txq[0]); 453 iwi_free_tx_ring(sc, &sc->txq[1]); 454 iwi_free_tx_ring(sc, &sc->txq[2]); 455 iwi_free_tx_ring(sc, &sc->txq[3]); 456 iwi_free_rx_ring(sc, &sc->rxq); 457 458 if (sc->sc_ih != NULL) { 459 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 460 sc->sc_ih = NULL; 461 } 462 463 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 464 465 return 0; 466 } 467 468 static int 469 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 470 int count) 471 { 472 int error, nsegs; 473 474 ring->count = count; 475 ring->queued = 0; 476 ring->cur = ring->next = 0; 477 478 /* 479 * Allocate and map command ring 480 */ 481 error = bus_dmamap_create(sc->sc_dmat, 482 IWI_CMD_DESC_SIZE * count, 1, 483 IWI_CMD_DESC_SIZE * count, 0, 484 BUS_DMA_NOWAIT, &ring->desc_map); 485 if (error != 0) { 486 aprint_error_dev(sc->sc_dev, 487 "could not create command ring DMA map\n"); 488 ring->desc_map = NULL; 489 goto fail; 490 } 491 492 error = bus_dmamem_alloc(sc->sc_dmat, 493 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 494 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 495 if (error != 0) { 496 aprint_error_dev(sc->sc_dev, 497 "could not allocate command ring DMA memory\n"); 498 goto fail; 499 } 500 501 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 502 IWI_CMD_DESC_SIZE * count, 503 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 504 if (error != 0) { 505 aprint_error_dev(sc->sc_dev, 506 "could not map command ring DMA memory\n"); 507 goto fail; 508 } 509 510 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 511 IWI_CMD_DESC_SIZE * count, NULL, 512 BUS_DMA_NOWAIT); 513 if (error != 0) { 514 aprint_error_dev(sc->sc_dev, 515 "could not load command ring DMA map\n"); 516 goto fail; 517 } 518 519 memset(sc->cmdq.desc, 0, 520 IWI_CMD_DESC_SIZE * count); 521 522 return 0; 523 524 fail: return error; 525 } 526 527 static void 528 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 529 { 530 int i; 531 532 for (i = ring->next; i != ring->cur;) { 533 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 534 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 535 BUS_DMASYNC_POSTWRITE); 536 537 wakeup(&ring->desc[i]); 538 i = (i + 1) % ring->count; 539 } 540 541 ring->queued = 0; 542 ring->cur = ring->next = 0; 543 } 544 545 static void 546 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 547 { 548 if (ring->desc_map != NULL) { 549 if (ring->desc != NULL) { 550 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 551 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 552 IWI_CMD_DESC_SIZE * ring->count); 553 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 554 } 555 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 556 } 557 } 558 559 static int 560 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 561 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 562 { 563 int i, error, nsegs; 564 565 ring->count = 0; 566 ring->queued = 0; 567 ring->cur = ring->next = 0; 568 ring->csr_ridx = csr_ridx; 569 ring->csr_widx = csr_widx; 570 571 /* 572 * Allocate and map Tx ring 573 */ 574 error = bus_dmamap_create(sc->sc_dmat, 575 IWI_TX_DESC_SIZE * count, 1, 576 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 577 &ring->desc_map); 578 if (error != 0) { 579 aprint_error_dev(sc->sc_dev, 580 "could not create tx ring DMA map\n"); 581 ring->desc_map = NULL; 582 goto fail; 583 } 584 585 error = bus_dmamem_alloc(sc->sc_dmat, 586 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 587 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 588 if (error != 0) { 589 aprint_error_dev(sc->sc_dev, 590 "could not allocate tx ring DMA memory\n"); 591 goto fail; 592 } 593 594 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 595 IWI_TX_DESC_SIZE * count, 596 (void **)&ring->desc, BUS_DMA_NOWAIT); 597 if (error != 0) { 598 aprint_error_dev(sc->sc_dev, 599 "could not map tx ring DMA memory\n"); 600 goto fail; 601 } 602 603 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 604 IWI_TX_DESC_SIZE * count, NULL, 605 BUS_DMA_NOWAIT); 606 if (error != 0) { 607 aprint_error_dev(sc->sc_dev, 608 "could not load tx ring DMA map\n"); 609 goto fail; 610 } 611 612 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 613 614 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 615 M_NOWAIT | M_ZERO); 616 if (ring->data == NULL) { 617 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 618 error = ENOMEM; 619 goto fail; 620 } 621 ring->count = count; 622 623 /* 624 * Allocate Tx buffers DMA maps 625 */ 626 for (i = 0; i < count; i++) { 627 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 628 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 629 if (error != 0) { 630 aprint_error_dev(sc->sc_dev, 631 "could not create tx buf DMA map"); 632 ring->data[i].map = NULL; 633 goto fail; 634 } 635 } 636 return 0; 637 638 fail: return error; 639 } 640 641 static void 642 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 643 { 644 struct iwi_tx_data *data; 645 int i; 646 647 for (i = 0; i < ring->count; i++) { 648 data = &ring->data[i]; 649 650 if (data->m != NULL) { 651 m_freem(data->m); 652 data->m = NULL; 653 } 654 655 if (data->map != NULL) { 656 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 657 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 658 bus_dmamap_unload(sc->sc_dmat, data->map); 659 } 660 661 if (data->ni != NULL) { 662 ieee80211_free_node(data->ni); 663 data->ni = NULL; 664 } 665 } 666 667 ring->queued = 0; 668 ring->cur = ring->next = 0; 669 } 670 671 static void 672 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 673 { 674 int i; 675 struct iwi_tx_data *data; 676 677 if (ring->desc_map != NULL) { 678 if (ring->desc != NULL) { 679 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 680 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 681 IWI_TX_DESC_SIZE * ring->count); 682 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 683 } 684 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 685 } 686 687 for (i = 0; i < ring->count; i++) { 688 data = &ring->data[i]; 689 690 if (data->m != NULL) { 691 m_freem(data->m); 692 } 693 694 if (data->map != NULL) { 695 bus_dmamap_unload(sc->sc_dmat, data->map); 696 bus_dmamap_destroy(sc->sc_dmat, data->map); 697 } 698 } 699 } 700 701 static int 702 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 703 { 704 int i, error; 705 706 ring->count = 0; 707 ring->cur = 0; 708 709 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 710 M_NOWAIT | M_ZERO); 711 if (ring->data == NULL) { 712 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 713 error = ENOMEM; 714 goto fail; 715 } 716 717 ring->count = count; 718 719 /* 720 * Allocate and map Rx buffers 721 */ 722 for (i = 0; i < count; i++) { 723 724 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 725 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 726 if (error != 0) { 727 aprint_error_dev(sc->sc_dev, 728 "could not create rx buf DMA map"); 729 ring->data[i].map = NULL; 730 goto fail; 731 } 732 733 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 734 error = ENOMEM; 735 goto fail; 736 } 737 738 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 739 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 740 if (error != 0) { 741 aprint_error_dev(sc->sc_dev, 742 "could not load rx buffer DMA map\n"); 743 goto fail; 744 } 745 746 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 747 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 748 } 749 750 return 0; 751 752 fail: return error; 753 } 754 755 static void 756 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 757 { 758 ring->cur = 0; 759 } 760 761 static void 762 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 763 { 764 int i; 765 struct iwi_rx_data *data; 766 767 for (i = 0; i < ring->count; i++) { 768 data = &ring->data[i]; 769 770 if (data->m != NULL) { 771 m_freem(data->m); 772 } 773 774 if (data->map != NULL) { 775 bus_dmamap_unload(sc->sc_dmat, data->map); 776 bus_dmamap_destroy(sc->sc_dmat, data->map); 777 } 778 779 } 780 } 781 782 static struct ieee80211_node * 783 iwi_node_alloc(struct ieee80211_node_table *nt) 784 { 785 struct iwi_node *in; 786 787 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 788 if (in == NULL) 789 return NULL; 790 791 in->in_station = -1; 792 793 return &in->in_node; 794 } 795 796 static int 797 iwi_alloc_unr(struct iwi_softc *sc) 798 { 799 int i; 800 801 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 802 if ((sc->sc_unr & (1 << i)) == 0) { 803 sc->sc_unr |= 1 << i; 804 return i; 805 } 806 807 return -1; 808 } 809 810 static void 811 iwi_free_unr(struct iwi_softc *sc, int r) 812 { 813 814 sc->sc_unr &= 1 << r; 815 } 816 817 static void 818 iwi_node_free(struct ieee80211_node *ni) 819 { 820 struct ieee80211com *ic = ni->ni_ic; 821 struct iwi_softc *sc = ic->ic_ifp->if_softc; 822 struct iwi_node *in = (struct iwi_node *)ni; 823 824 if (in->in_station != -1) 825 iwi_free_unr(sc, in->in_station); 826 827 sc->sc_node_free(ni); 828 } 829 830 static int 831 iwi_media_change(struct ifnet *ifp) 832 { 833 int error; 834 835 error = ieee80211_media_change(ifp); 836 if (error != ENETRESET) 837 return error; 838 839 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 840 iwi_init(ifp); 841 842 return 0; 843 } 844 845 /* 846 * Convert h/w rate code to IEEE rate code. 847 */ 848 static int 849 iwi_cvtrate(int iwirate) 850 { 851 switch (iwirate) { 852 case IWI_RATE_DS1: return 2; 853 case IWI_RATE_DS2: return 4; 854 case IWI_RATE_DS5: return 11; 855 case IWI_RATE_DS11: return 22; 856 case IWI_RATE_OFDM6: return 12; 857 case IWI_RATE_OFDM9: return 18; 858 case IWI_RATE_OFDM12: return 24; 859 case IWI_RATE_OFDM18: return 36; 860 case IWI_RATE_OFDM24: return 48; 861 case IWI_RATE_OFDM36: return 72; 862 case IWI_RATE_OFDM48: return 96; 863 case IWI_RATE_OFDM54: return 108; 864 } 865 return 0; 866 } 867 868 /* 869 * The firmware automatically adapts the transmit speed. We report its current 870 * value here. 871 */ 872 static void 873 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 874 { 875 struct iwi_softc *sc = ifp->if_softc; 876 struct ieee80211com *ic = &sc->sc_ic; 877 int rate; 878 879 imr->ifm_status = IFM_AVALID; 880 imr->ifm_active = IFM_IEEE80211; 881 if (ic->ic_state == IEEE80211_S_RUN) 882 imr->ifm_status |= IFM_ACTIVE; 883 884 /* read current transmission rate from adapter */ 885 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 886 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 887 888 switch (ic->ic_opmode) { 889 case IEEE80211_M_STA: 890 break; 891 892 case IEEE80211_M_IBSS: 893 imr->ifm_active |= IFM_IEEE80211_ADHOC; 894 break; 895 896 case IEEE80211_M_MONITOR: 897 imr->ifm_active |= IFM_IEEE80211_MONITOR; 898 break; 899 900 case IEEE80211_M_AHDEMO: 901 case IEEE80211_M_HOSTAP: 902 /* should not get there */ 903 break; 904 } 905 } 906 907 static int 908 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 909 { 910 struct iwi_softc *sc = ic->ic_ifp->if_softc; 911 912 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 913 ieee80211_state_name[ic->ic_state], 914 ieee80211_state_name[nstate], sc->flags)); 915 916 switch (nstate) { 917 case IEEE80211_S_SCAN: 918 if (sc->flags & IWI_FLAG_SCANNING) 919 break; 920 921 ieee80211_node_table_reset(&ic->ic_scan); 922 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 923 sc->flags |= IWI_FLAG_SCANNING; 924 /* blink the led while scanning */ 925 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 926 iwi_scan(sc); 927 break; 928 929 case IEEE80211_S_AUTH: 930 iwi_auth_and_assoc(sc); 931 break; 932 933 case IEEE80211_S_RUN: 934 if (ic->ic_opmode == IEEE80211_M_IBSS && 935 ic->ic_state == IEEE80211_S_SCAN) 936 iwi_auth_and_assoc(sc); 937 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 938 iwi_set_chan(sc, ic->ic_ibss_chan); 939 break; 940 case IEEE80211_S_ASSOC: 941 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 942 if (ic->ic_state == IEEE80211_S_AUTH) 943 break; 944 iwi_auth_and_assoc(sc); 945 break; 946 947 case IEEE80211_S_INIT: 948 sc->flags &= ~IWI_FLAG_SCANNING; 949 break; 950 } 951 952 return sc->sc_newstate(ic, nstate, arg); 953 } 954 955 /* 956 * WME parameters coming from IEEE 802.11e specification. These values are 957 * already declared in ieee80211_proto.c, but they are static so they can't 958 * be reused here. 959 */ 960 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 961 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 962 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 963 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 964 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 965 }; 966 967 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 968 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 969 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 970 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 971 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 972 }; 973 974 static int 975 iwi_wme_update(struct ieee80211com *ic) 976 { 977 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 978 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 979 struct iwi_softc *sc = ic->ic_ifp->if_softc; 980 struct iwi_wme_params wme[3]; 981 const struct wmeParams *wmep; 982 int ac; 983 984 /* 985 * We shall not override firmware default WME values if WME is not 986 * actually enabled. 987 */ 988 if (!(ic->ic_flags & IEEE80211_F_WME)) 989 return 0; 990 991 for (ac = 0; ac < WME_NUM_AC; ac++) { 992 /* set WME values for current operating mode */ 993 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 994 wme[0].aifsn[ac] = wmep->wmep_aifsn; 995 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 996 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 997 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 998 wme[0].acm[ac] = wmep->wmep_acm; 999 1000 /* set WME values for CCK modulation */ 1001 wmep = &iwi_wme_cck_params[ac]; 1002 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1003 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1004 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1005 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1006 wme[1].acm[ac] = wmep->wmep_acm; 1007 1008 /* set WME values for OFDM modulation */ 1009 wmep = &iwi_wme_ofdm_params[ac]; 1010 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1011 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1012 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1013 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1014 wme[2].acm[ac] = wmep->wmep_acm; 1015 } 1016 1017 DPRINTF(("Setting WME parameters\n")); 1018 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1019 #undef IWI_USEC 1020 #undef IWI_EXP2 1021 } 1022 1023 /* 1024 * Read 16 bits at address 'addr' from the serial EEPROM. 1025 */ 1026 static uint16_t 1027 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1028 { 1029 uint32_t tmp; 1030 uint16_t val; 1031 int n; 1032 1033 /* Clock C once before the first command */ 1034 IWI_EEPROM_CTL(sc, 0); 1035 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1037 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1038 1039 /* Write start bit (1) */ 1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1041 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1042 1043 /* Write READ opcode (10) */ 1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1048 1049 /* Write address A7-A0 */ 1050 for (n = 7; n >= 0; n--) { 1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1052 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1054 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1055 } 1056 1057 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1058 1059 /* Read data Q15-Q0 */ 1060 val = 0; 1061 for (n = 15; n >= 0; n--) { 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1063 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1064 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1065 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1066 } 1067 1068 IWI_EEPROM_CTL(sc, 0); 1069 1070 /* Clear Chip Select and clock C */ 1071 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1072 IWI_EEPROM_CTL(sc, 0); 1073 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1074 1075 return val; 1076 } 1077 1078 /* 1079 * XXX: Hack to set the current channel to the value advertised in beacons or 1080 * probe responses. Only used during AP detection. 1081 */ 1082 static void 1083 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1084 { 1085 struct ieee80211_frame *wh; 1086 uint8_t subtype; 1087 uint8_t *frm, *efrm; 1088 1089 wh = mtod(m, struct ieee80211_frame *); 1090 1091 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1092 return; 1093 1094 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1095 1096 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1097 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1098 return; 1099 1100 frm = (uint8_t *)(wh + 1); 1101 efrm = mtod(m, uint8_t *) + m->m_len; 1102 1103 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1104 while (frm < efrm) { 1105 if (*frm == IEEE80211_ELEMID_DSPARMS) 1106 #if IEEE80211_CHAN_MAX < 255 1107 if (frm[2] <= IEEE80211_CHAN_MAX) 1108 #endif 1109 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1110 1111 frm += frm[1] + 2; 1112 } 1113 } 1114 1115 static struct mbuf * 1116 iwi_alloc_rx_buf(struct iwi_softc *sc) 1117 { 1118 struct mbuf *m; 1119 1120 MGETHDR(m, M_DONTWAIT, MT_DATA); 1121 if (m == NULL) { 1122 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1123 return NULL; 1124 } 1125 1126 MCLGET(m, M_DONTWAIT); 1127 if (!(m->m_flags & M_EXT)) { 1128 aprint_error_dev(sc->sc_dev, 1129 "could not allocate rx mbuf cluster\n"); 1130 m_freem(m); 1131 return NULL; 1132 } 1133 1134 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1135 return m; 1136 } 1137 1138 static void 1139 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1140 struct iwi_frame *frame) 1141 { 1142 struct ieee80211com *ic = &sc->sc_ic; 1143 struct ifnet *ifp = ic->ic_ifp; 1144 struct mbuf *m, *m_new; 1145 struct ieee80211_frame *wh; 1146 struct ieee80211_node *ni; 1147 int error; 1148 1149 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1150 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1151 1152 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1153 le16toh(frame->len) > MCLBYTES) { 1154 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1155 ifp->if_ierrors++; 1156 return; 1157 } 1158 1159 /* 1160 * Try to allocate a new mbuf for this ring element and 1161 * load it before processing the current mbuf. If the ring 1162 * element cannot be reloaded, drop the received packet 1163 * and reuse the old mbuf. In the unlikely case that 1164 * the old mbuf can't be reloaded either, explicitly panic. 1165 * 1166 * XXX Reorganize buffer by moving elements from the logical 1167 * end of the ring to the front instead of dropping. 1168 */ 1169 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1170 ifp->if_ierrors++; 1171 return; 1172 } 1173 1174 bus_dmamap_unload(sc->sc_dmat, data->map); 1175 1176 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1177 BUS_DMA_READ | BUS_DMA_NOWAIT); 1178 if (error != 0) { 1179 aprint_error_dev(sc->sc_dev, 1180 "could not load rx buf DMA map\n"); 1181 m_freem(m_new); 1182 ifp->if_ierrors++; 1183 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1184 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1185 if (error) 1186 panic("%s: unable to remap rx buf", 1187 device_xname(sc->sc_dev)); 1188 return; 1189 } 1190 1191 /* 1192 * New mbuf successfully loaded, update RX ring and continue 1193 * processing. 1194 */ 1195 m = data->m; 1196 data->m = m_new; 1197 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1198 1199 /* Finalize mbuf */ 1200 m_set_rcvif(m, ifp); 1201 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1202 sizeof (struct iwi_frame) + le16toh(frame->len); 1203 1204 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1205 1206 if (ic->ic_state == IEEE80211_S_SCAN) 1207 iwi_fix_channel(ic, m); 1208 1209 if (sc->sc_drvbpf != NULL) { 1210 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1211 1212 tap->wr_flags = 0; 1213 tap->wr_rate = iwi_cvtrate(frame->rate); 1214 tap->wr_chan_freq = 1215 htole16(ic->ic_channels[frame->chan].ic_freq); 1216 tap->wr_chan_flags = 1217 htole16(ic->ic_channels[frame->chan].ic_flags); 1218 tap->wr_antsignal = frame->signal; 1219 tap->wr_antenna = frame->antenna; 1220 1221 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1222 } 1223 wh = mtod(m, struct ieee80211_frame *); 1224 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1225 1226 /* Send the frame to the upper layer */ 1227 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1228 1229 /* node is no longer needed */ 1230 ieee80211_free_node(ni); 1231 } 1232 1233 static void 1234 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1235 { 1236 struct ieee80211com *ic = &sc->sc_ic; 1237 struct iwi_notif_authentication *auth; 1238 struct iwi_notif_association *assoc; 1239 struct iwi_notif_beacon_state *beacon; 1240 1241 switch (notif->type) { 1242 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1243 #ifdef IWI_DEBUG 1244 { 1245 struct iwi_notif_scan_channel *chan = 1246 (struct iwi_notif_scan_channel *)(notif + 1); 1247 1248 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1249 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1250 } 1251 #endif 1252 break; 1253 1254 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1255 #ifdef IWI_DEBUG 1256 { 1257 struct iwi_notif_scan_complete *scan = 1258 (struct iwi_notif_scan_complete *)(notif + 1); 1259 1260 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1261 scan->status)); 1262 } 1263 #endif 1264 1265 /* monitor mode uses scan to set the channel ... */ 1266 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1267 sc->flags &= ~IWI_FLAG_SCANNING; 1268 ieee80211_end_scan(ic); 1269 } else 1270 iwi_set_chan(sc, ic->ic_ibss_chan); 1271 break; 1272 1273 case IWI_NOTIF_TYPE_AUTHENTICATION: 1274 auth = (struct iwi_notif_authentication *)(notif + 1); 1275 1276 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1277 1278 switch (auth->state) { 1279 case IWI_AUTH_SUCCESS: 1280 ieee80211_node_authorize(ic->ic_bss); 1281 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1282 break; 1283 1284 case IWI_AUTH_FAIL: 1285 break; 1286 1287 case IWI_AUTH_SENT_1: 1288 case IWI_AUTH_RECV_2: 1289 case IWI_AUTH_SEQ1_PASS: 1290 break; 1291 1292 case IWI_AUTH_SEQ1_FAIL: 1293 break; 1294 1295 default: 1296 aprint_error_dev(sc->sc_dev, 1297 "unknown authentication state %u\n", auth->state); 1298 } 1299 break; 1300 1301 case IWI_NOTIF_TYPE_ASSOCIATION: 1302 assoc = (struct iwi_notif_association *)(notif + 1); 1303 1304 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1305 assoc->status)); 1306 1307 switch (assoc->state) { 1308 case IWI_AUTH_SUCCESS: 1309 /* re-association, do nothing */ 1310 break; 1311 1312 case IWI_ASSOC_SUCCESS: 1313 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1314 break; 1315 1316 case IWI_ASSOC_FAIL: 1317 ieee80211_begin_scan(ic, 1); 1318 break; 1319 1320 default: 1321 aprint_error_dev(sc->sc_dev, 1322 "unknown association state %u\n", assoc->state); 1323 } 1324 break; 1325 1326 case IWI_NOTIF_TYPE_BEACON: 1327 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1328 1329 if (beacon->state == IWI_BEACON_MISS) { 1330 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1331 device_xname(sc->sc_dev), le32toh(beacon->number))); 1332 } 1333 break; 1334 1335 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1336 case IWI_NOTIF_TYPE_LINK_QUALITY: 1337 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1338 case IWI_NOTIF_TYPE_CALIBRATION: 1339 case IWI_NOTIF_TYPE_NOISE: 1340 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1341 break; 1342 1343 default: 1344 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1345 device_xname(sc->sc_dev), notif->type, notif->flags, 1346 le16toh(notif->len))); 1347 } 1348 } 1349 1350 static void 1351 iwi_cmd_intr(struct iwi_softc *sc) 1352 { 1353 1354 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1355 1356 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1357 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1358 BUS_DMASYNC_POSTWRITE); 1359 1360 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1361 1362 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1363 1364 if (--sc->cmdq.queued > 0) { 1365 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1366 } 1367 } 1368 1369 static void 1370 iwi_rx_intr(struct iwi_softc *sc) 1371 { 1372 struct iwi_rx_data *data; 1373 struct iwi_hdr *hdr; 1374 uint32_t hw; 1375 1376 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1377 1378 for (; sc->rxq.cur != hw;) { 1379 data = &sc->rxq.data[sc->rxq.cur]; 1380 1381 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1382 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1383 1384 hdr = mtod(data->m, struct iwi_hdr *); 1385 1386 switch (hdr->type) { 1387 case IWI_HDR_TYPE_FRAME: 1388 iwi_frame_intr(sc, data, sc->rxq.cur, 1389 (struct iwi_frame *)(hdr + 1)); 1390 break; 1391 1392 case IWI_HDR_TYPE_NOTIF: 1393 iwi_notification_intr(sc, 1394 (struct iwi_notif *)(hdr + 1)); 1395 break; 1396 1397 default: 1398 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1399 hdr->type); 1400 } 1401 1402 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1403 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1404 1405 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1406 1407 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1408 } 1409 1410 /* Tell the firmware what we have processed */ 1411 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1412 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1413 } 1414 1415 static void 1416 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1417 { 1418 struct ifnet *ifp = &sc->sc_if; 1419 struct iwi_tx_data *data; 1420 uint32_t hw; 1421 1422 hw = CSR_READ_4(sc, txq->csr_ridx); 1423 1424 for (; txq->next != hw;) { 1425 data = &txq->data[txq->next]; 1426 1427 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1428 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1429 bus_dmamap_unload(sc->sc_dmat, data->map); 1430 m_freem(data->m); 1431 data->m = NULL; 1432 ieee80211_free_node(data->ni); 1433 data->ni = NULL; 1434 1435 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1436 1437 ifp->if_opackets++; 1438 1439 txq->queued--; 1440 txq->next = (txq->next + 1) % txq->count; 1441 } 1442 1443 sc->sc_tx_timer = 0; 1444 ifp->if_flags &= ~IFF_OACTIVE; 1445 1446 /* Call start() since some buffer descriptors have been released */ 1447 (*ifp->if_start)(ifp); 1448 } 1449 1450 static int 1451 iwi_intr(void *arg) 1452 { 1453 struct iwi_softc *sc = arg; 1454 uint32_t r; 1455 1456 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1457 return 0; 1458 1459 /* Acknowledge interrupts */ 1460 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1461 1462 if (r & IWI_INTR_FATAL_ERROR) { 1463 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1464 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1465 iwi_stop(&sc->sc_if, 1); 1466 return (1); 1467 } 1468 1469 if (r & IWI_INTR_FW_INITED) { 1470 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1471 wakeup(sc); 1472 } 1473 1474 if (r & IWI_INTR_RADIO_OFF) { 1475 DPRINTF(("radio transmitter off\n")); 1476 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1477 iwi_stop(&sc->sc_if, 1); 1478 return (1); 1479 } 1480 1481 if (r & IWI_INTR_CMD_DONE) 1482 iwi_cmd_intr(sc); 1483 1484 if (r & IWI_INTR_TX1_DONE) 1485 iwi_tx_intr(sc, &sc->txq[0]); 1486 1487 if (r & IWI_INTR_TX2_DONE) 1488 iwi_tx_intr(sc, &sc->txq[1]); 1489 1490 if (r & IWI_INTR_TX3_DONE) 1491 iwi_tx_intr(sc, &sc->txq[2]); 1492 1493 if (r & IWI_INTR_TX4_DONE) 1494 iwi_tx_intr(sc, &sc->txq[3]); 1495 1496 if (r & IWI_INTR_RX_DONE) 1497 iwi_rx_intr(sc); 1498 1499 if (r & IWI_INTR_PARITY_ERROR) 1500 aprint_error_dev(sc->sc_dev, "parity error\n"); 1501 1502 return 1; 1503 } 1504 1505 static int 1506 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1507 int async) 1508 { 1509 struct iwi_cmd_desc *desc; 1510 1511 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1512 1513 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1514 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1515 desc->type = type; 1516 desc->len = len; 1517 memcpy(desc->data, data, len); 1518 1519 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1520 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1521 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1522 1523 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1524 sc->cmdq.cur, type, len, async)); 1525 1526 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1527 1528 if (++sc->cmdq.queued == 1) 1529 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1530 1531 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1532 } 1533 1534 static void 1535 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1536 { 1537 struct iwi_ibssnode node; 1538 1539 /* write node information into NIC memory */ 1540 memset(&node, 0, sizeof node); 1541 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1542 1543 CSR_WRITE_REGION_1(sc, 1544 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1545 (uint8_t *)&node, sizeof node); 1546 } 1547 1548 static int 1549 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1550 int ac) 1551 { 1552 struct iwi_softc *sc = ifp->if_softc; 1553 struct ieee80211com *ic = &sc->sc_ic; 1554 struct iwi_node *in = (struct iwi_node *)ni; 1555 struct ieee80211_frame *wh; 1556 struct ieee80211_key *k; 1557 const struct chanAccParams *cap; 1558 struct iwi_tx_ring *txq = &sc->txq[ac]; 1559 struct iwi_tx_data *data; 1560 struct iwi_tx_desc *desc; 1561 struct mbuf *mnew; 1562 int error, hdrlen, i, noack = 0; 1563 1564 wh = mtod(m0, struct ieee80211_frame *); 1565 1566 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1567 hdrlen = sizeof (struct ieee80211_qosframe); 1568 cap = &ic->ic_wme.wme_chanParams; 1569 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1570 } else 1571 hdrlen = sizeof (struct ieee80211_frame); 1572 1573 /* 1574 * This is only used in IBSS mode where the firmware expect an index 1575 * in a h/w table instead of a destination address. 1576 */ 1577 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1578 in->in_station = iwi_alloc_unr(sc); 1579 1580 if (in->in_station == -1) { /* h/w table is full */ 1581 m_freem(m0); 1582 ieee80211_free_node(ni); 1583 ifp->if_oerrors++; 1584 return 0; 1585 } 1586 iwi_write_ibssnode(sc, in); 1587 } 1588 1589 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1590 k = ieee80211_crypto_encap(ic, ni, m0); 1591 if (k == NULL) { 1592 m_freem(m0); 1593 return ENOBUFS; 1594 } 1595 1596 /* packet header may have moved, reset our local pointer */ 1597 wh = mtod(m0, struct ieee80211_frame *); 1598 } 1599 1600 if (sc->sc_drvbpf != NULL) { 1601 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1602 1603 tap->wt_flags = 0; 1604 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1605 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1606 1607 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1608 } 1609 1610 data = &txq->data[txq->cur]; 1611 desc = &txq->desc[txq->cur]; 1612 1613 /* save and trim IEEE802.11 header */ 1614 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1615 m_adj(m0, hdrlen); 1616 1617 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1618 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1619 if (error != 0 && error != EFBIG) { 1620 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1621 error); 1622 m_freem(m0); 1623 return error; 1624 } 1625 if (error != 0) { 1626 /* too many fragments, linearize */ 1627 1628 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1629 if (mnew == NULL) { 1630 m_freem(m0); 1631 return ENOMEM; 1632 } 1633 1634 M_COPY_PKTHDR(mnew, m0); 1635 1636 /* If the data won't fit in the header, get a cluster */ 1637 if (m0->m_pkthdr.len > MHLEN) { 1638 MCLGET(mnew, M_DONTWAIT); 1639 if (!(mnew->m_flags & M_EXT)) { 1640 m_freem(m0); 1641 m_freem(mnew); 1642 return ENOMEM; 1643 } 1644 } 1645 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1646 m_freem(m0); 1647 mnew->m_len = mnew->m_pkthdr.len; 1648 m0 = mnew; 1649 1650 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1651 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1652 if (error != 0) { 1653 aprint_error_dev(sc->sc_dev, 1654 "could not map mbuf (error %d)\n", error); 1655 m_freem(m0); 1656 return error; 1657 } 1658 } 1659 1660 data->m = m0; 1661 data->ni = ni; 1662 1663 desc->hdr.type = IWI_HDR_TYPE_DATA; 1664 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1665 desc->station = 1666 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1667 desc->cmd = IWI_DATA_CMD_TX; 1668 desc->len = htole16(m0->m_pkthdr.len); 1669 desc->flags = 0; 1670 desc->xflags = 0; 1671 1672 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1673 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1674 1675 #if 0 1676 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1677 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1678 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1679 } else 1680 #endif 1681 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1682 1683 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1684 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1685 1686 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1687 desc->xflags |= IWI_DATA_XFLAG_QOS; 1688 1689 if (ic->ic_curmode == IEEE80211_MODE_11B) 1690 desc->xflags |= IWI_DATA_XFLAG_CCK; 1691 1692 desc->nseg = htole32(data->map->dm_nsegs); 1693 for (i = 0; i < data->map->dm_nsegs; i++) { 1694 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1695 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1696 } 1697 1698 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1699 txq->cur * IWI_TX_DESC_SIZE, 1700 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1701 1702 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1703 BUS_DMASYNC_PREWRITE); 1704 1705 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1706 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1707 1708 /* Inform firmware about this new packet */ 1709 txq->queued++; 1710 txq->cur = (txq->cur + 1) % txq->count; 1711 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1712 1713 return 0; 1714 } 1715 1716 static void 1717 iwi_start(struct ifnet *ifp) 1718 { 1719 struct iwi_softc *sc = ifp->if_softc; 1720 struct ieee80211com *ic = &sc->sc_ic; 1721 struct mbuf *m0; 1722 struct ether_header *eh; 1723 struct ieee80211_node *ni; 1724 int ac; 1725 1726 if (ic->ic_state != IEEE80211_S_RUN) 1727 return; 1728 1729 for (;;) { 1730 IF_DEQUEUE(&ifp->if_snd, m0); 1731 if (m0 == NULL) 1732 break; 1733 1734 if (m0->m_len < sizeof (struct ether_header) && 1735 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1736 ifp->if_oerrors++; 1737 continue; 1738 } 1739 1740 eh = mtod(m0, struct ether_header *); 1741 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1742 if (ni == NULL) { 1743 m_freem(m0); 1744 ifp->if_oerrors++; 1745 continue; 1746 } 1747 1748 /* classify mbuf so we can find which tx ring to use */ 1749 if (ieee80211_classify(ic, m0, ni) != 0) { 1750 m_freem(m0); 1751 ieee80211_free_node(ni); 1752 ifp->if_oerrors++; 1753 continue; 1754 } 1755 1756 /* no QoS encapsulation for EAPOL frames */ 1757 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1758 M_WME_GETAC(m0) : WME_AC_BE; 1759 1760 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1761 /* there is no place left in this ring */ 1762 IF_PREPEND(&ifp->if_snd, m0); 1763 ifp->if_flags |= IFF_OACTIVE; 1764 break; 1765 } 1766 1767 bpf_mtap(ifp, m0); 1768 1769 m0 = ieee80211_encap(ic, m0, ni); 1770 if (m0 == NULL) { 1771 ieee80211_free_node(ni); 1772 ifp->if_oerrors++; 1773 continue; 1774 } 1775 1776 bpf_mtap3(ic->ic_rawbpf, m0); 1777 1778 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1779 ieee80211_free_node(ni); 1780 ifp->if_oerrors++; 1781 break; 1782 } 1783 1784 /* start watchdog timer */ 1785 sc->sc_tx_timer = 5; 1786 ifp->if_timer = 1; 1787 } 1788 } 1789 1790 static void 1791 iwi_watchdog(struct ifnet *ifp) 1792 { 1793 struct iwi_softc *sc = ifp->if_softc; 1794 1795 ifp->if_timer = 0; 1796 1797 if (sc->sc_tx_timer > 0) { 1798 if (--sc->sc_tx_timer == 0) { 1799 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1800 ifp->if_oerrors++; 1801 ifp->if_flags &= ~IFF_UP; 1802 iwi_stop(ifp, 1); 1803 return; 1804 } 1805 ifp->if_timer = 1; 1806 } 1807 1808 ieee80211_watchdog(&sc->sc_ic); 1809 } 1810 1811 static int 1812 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1813 { 1814 uint32_t size, buf[128]; 1815 1816 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1817 memset(buf, 0, sizeof buf); 1818 return copyout(buf, tbl, sizeof buf); 1819 } 1820 1821 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1822 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1823 1824 return copyout(buf, tbl, sizeof buf); 1825 } 1826 1827 static int 1828 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1829 { 1830 #define IS_RUNNING(ifp) \ 1831 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1832 1833 struct iwi_softc *sc = ifp->if_softc; 1834 struct ieee80211com *ic = &sc->sc_ic; 1835 struct ifreq *ifr = (struct ifreq *)data; 1836 int s, error = 0; 1837 int val; 1838 1839 s = splnet(); 1840 1841 switch (cmd) { 1842 case SIOCSIFFLAGS: 1843 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1844 break; 1845 if (ifp->if_flags & IFF_UP) { 1846 if (!(ifp->if_flags & IFF_RUNNING)) 1847 iwi_init(ifp); 1848 } else { 1849 if (ifp->if_flags & IFF_RUNNING) 1850 iwi_stop(ifp, 1); 1851 } 1852 break; 1853 1854 case SIOCADDMULTI: 1855 case SIOCDELMULTI: 1856 /* XXX no h/w multicast filter? --dyoung */ 1857 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1858 /* setup multicast filter, etc */ 1859 error = 0; 1860 } 1861 break; 1862 1863 case SIOCGTABLE0: 1864 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1865 break; 1866 1867 case SIOCGRADIO: 1868 val = !iwi_getrfkill(sc); 1869 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1870 break; 1871 1872 case SIOCSIFMEDIA: 1873 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1874 sc->sc_fwname = "ipw2200-ibss.fw"; 1875 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1876 sc->sc_fwname = "ipw2200-sniffer.fw"; 1877 } else { 1878 sc->sc_fwname = "ipw2200-bss.fw"; 1879 } 1880 error = iwi_cache_firmware(sc); 1881 if (error) 1882 break; 1883 /* FALLTRHOUGH */ 1884 1885 default: 1886 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1887 1888 if (error == ENETRESET) { 1889 if (IS_RUNNING(ifp) && 1890 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1891 iwi_init(ifp); 1892 error = 0; 1893 } 1894 } 1895 1896 splx(s); 1897 return error; 1898 #undef IS_RUNNING 1899 } 1900 1901 static void 1902 iwi_stop_master(struct iwi_softc *sc) 1903 { 1904 int ntries; 1905 1906 /* Disable interrupts */ 1907 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1908 1909 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1910 for (ntries = 0; ntries < 5; ntries++) { 1911 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1912 break; 1913 DELAY(10); 1914 } 1915 if (ntries == 5) 1916 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1917 1918 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1919 IWI_RST_PRINCETON_RESET); 1920 1921 sc->flags &= ~IWI_FLAG_FW_INITED; 1922 } 1923 1924 static int 1925 iwi_reset(struct iwi_softc *sc) 1926 { 1927 int i, ntries; 1928 1929 iwi_stop_master(sc); 1930 1931 /* Move adapter to D0 state */ 1932 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1933 IWI_CTL_INIT); 1934 1935 /* Initialize Phase-Locked Level (PLL) */ 1936 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1937 1938 /* Wait for clock stabilization */ 1939 for (ntries = 0; ntries < 1000; ntries++) { 1940 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1941 break; 1942 DELAY(200); 1943 } 1944 if (ntries == 1000) { 1945 aprint_error_dev(sc->sc_dev, 1946 "timeout waiting for clock stabilization\n"); 1947 return ETIMEDOUT; 1948 } 1949 1950 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1951 IWI_RST_SW_RESET); 1952 1953 DELAY(10); 1954 1955 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1956 IWI_CTL_INIT); 1957 1958 /* Clear NIC memory */ 1959 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1960 for (i = 0; i < 0xc000; i++) 1961 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1962 1963 return 0; 1964 } 1965 1966 static int 1967 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1968 { 1969 uint16_t *w; 1970 int ntries, i; 1971 1972 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1973 IWI_RST_STOP_MASTER); 1974 for (ntries = 0; ntries < 5; ntries++) { 1975 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1976 break; 1977 DELAY(10); 1978 } 1979 if (ntries == 5) { 1980 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1981 return ETIMEDOUT; 1982 } 1983 1984 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1985 DELAY(5000); 1986 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1987 ~IWI_RST_PRINCETON_RESET); 1988 DELAY(5000); 1989 MEM_WRITE_4(sc, 0x3000e0, 0); 1990 DELAY(1000); 1991 MEM_WRITE_4(sc, 0x300004, 1); 1992 DELAY(1000); 1993 MEM_WRITE_4(sc, 0x300004, 0); 1994 DELAY(1000); 1995 MEM_WRITE_1(sc, 0x200000, 0x00); 1996 MEM_WRITE_1(sc, 0x200000, 0x40); 1997 DELAY(1000); 1998 1999 /* Adapter is buggy, we must set the address for each word */ 2000 for (w = uc; size > 0; w++, size -= 2) 2001 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2002 2003 MEM_WRITE_1(sc, 0x200000, 0x00); 2004 MEM_WRITE_1(sc, 0x200000, 0x80); 2005 2006 /* Wait until we get a response in the uc queue */ 2007 for (ntries = 0; ntries < 100; ntries++) { 2008 if (MEM_READ_1(sc, 0x200000) & 1) 2009 break; 2010 DELAY(100); 2011 } 2012 if (ntries == 100) { 2013 aprint_error_dev(sc->sc_dev, 2014 "timeout waiting for ucode to initialize\n"); 2015 return ETIMEDOUT; 2016 } 2017 2018 /* Empty the uc queue or the firmware will not initialize properly */ 2019 for (i = 0; i < 7; i++) 2020 MEM_READ_4(sc, 0x200004); 2021 2022 MEM_WRITE_1(sc, 0x200000, 0x00); 2023 2024 return 0; 2025 } 2026 2027 /* macro to handle unaligned little endian data in firmware image */ 2028 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2029 static int 2030 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2031 { 2032 bus_dmamap_t map; 2033 u_char *p, *end; 2034 uint32_t sentinel, ctl, sum; 2035 uint32_t cs, sl, cd, cl; 2036 int ntries, nsegs, error; 2037 int sn; 2038 2039 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2040 2041 /* Create a DMA map for the firmware image */ 2042 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2043 BUS_DMA_NOWAIT, &map); 2044 if (error != 0) { 2045 aprint_error_dev(sc->sc_dev, 2046 "could not create firmware DMA map\n"); 2047 map = NULL; 2048 goto fail1; 2049 } 2050 2051 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2052 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2053 if (error != 0) { 2054 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2055 error); 2056 goto fail2; 2057 } 2058 2059 /* Make sure the adapter will get up-to-date values */ 2060 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2061 2062 /* Tell the adapter where the command blocks are stored */ 2063 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2064 2065 /* 2066 * Store command blocks into adapter's internal memory using register 2067 * indirections. The adapter will read the firmware image through DMA 2068 * using information stored in command blocks. 2069 */ 2070 p = fw; 2071 end = p + size; 2072 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2073 2074 sn = 0; 2075 sl = cl = 0; 2076 cs = cd = 0; 2077 while (p < end) { 2078 if (sl == 0) { 2079 cs = map->dm_segs[sn].ds_addr; 2080 sl = map->dm_segs[sn].ds_len; 2081 sn++; 2082 } 2083 if (cl == 0) { 2084 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2085 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2086 } 2087 while (sl > 0 && cl > 0) { 2088 int len = min(cl, sl); 2089 2090 sl -= len; 2091 cl -= len; 2092 p += len; 2093 2094 while (len > 0) { 2095 int mlen = min(len, IWI_CB_MAXDATALEN); 2096 2097 ctl = IWI_CB_DEFAULT_CTL | mlen; 2098 sum = ctl ^ cs ^ cd; 2099 2100 /* Write a command block */ 2101 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2102 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2103 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2104 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2105 2106 cs += mlen; 2107 cd += mlen; 2108 len -= mlen; 2109 } 2110 } 2111 } 2112 2113 /* Write a fictive final command block (sentinel) */ 2114 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2115 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2116 2117 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2118 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2119 2120 /* Tell the adapter to start processing command blocks */ 2121 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2122 2123 /* Wait until the adapter has processed all command blocks */ 2124 for (ntries = 0; ntries < 400; ntries++) { 2125 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2126 break; 2127 DELAY(100); 2128 } 2129 if (ntries == 400) { 2130 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2131 error = ETIMEDOUT; 2132 goto fail3; 2133 } 2134 2135 /* We're done with command blocks processing */ 2136 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2137 2138 /* Allow interrupts so we know when the firmware is inited */ 2139 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2140 2141 /* Tell the adapter to initialize the firmware */ 2142 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2143 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2144 IWI_CTL_ALLOW_STANDBY); 2145 2146 /* Wait at most one second for firmware initialization to complete */ 2147 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2148 aprint_error_dev(sc->sc_dev, 2149 "timeout waiting for firmware initialization to complete\n"); 2150 goto fail3; 2151 } 2152 2153 fail3: 2154 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2155 bus_dmamap_unload(sc->sc_dmat, map); 2156 fail2: 2157 if (map != NULL) 2158 bus_dmamap_destroy(sc->sc_dmat, map); 2159 2160 fail1: 2161 return error; 2162 } 2163 2164 /* 2165 * Store firmware into kernel memory so we can download it when we need to, 2166 * e.g when the adapter wakes up from suspend mode. 2167 */ 2168 static int 2169 iwi_cache_firmware(struct iwi_softc *sc) 2170 { 2171 struct iwi_firmware *kfw = &sc->fw; 2172 firmware_handle_t fwh; 2173 struct iwi_firmware_hdr *hdr; 2174 off_t size; 2175 char *fw; 2176 int error; 2177 2178 if (iwi_accept_eula == 0) { 2179 aprint_error_dev(sc->sc_dev, 2180 "EULA not accepted; please see the iwi(4) man page.\n"); 2181 return EPERM; 2182 } 2183 2184 iwi_free_firmware(sc); 2185 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2186 if (error != 0) { 2187 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2188 goto fail1; 2189 } 2190 2191 size = firmware_get_size(fwh); 2192 if (size < sizeof(struct iwi_firmware_hdr)) { 2193 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2194 sc->sc_fwname); 2195 error = EIO; 2196 goto fail1; 2197 } 2198 sc->sc_blobsize = size; 2199 2200 sc->sc_blob = firmware_malloc(size); 2201 if (sc->sc_blob == NULL) { 2202 error = ENOMEM; 2203 firmware_close(fwh); 2204 goto fail1; 2205 } 2206 2207 error = firmware_read(fwh, 0, sc->sc_blob, size); 2208 firmware_close(fwh); 2209 if (error != 0) 2210 goto fail2; 2211 2212 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2213 hdr->version = le32toh(hdr->version); 2214 hdr->bsize = le32toh(hdr->bsize); 2215 hdr->usize = le32toh(hdr->usize); 2216 hdr->fsize = le32toh(hdr->fsize); 2217 2218 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2219 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2220 sc->sc_fwname); 2221 error = EIO; 2222 goto fail2; 2223 } 2224 2225 DPRINTF(("firmware version = %d\n", hdr->version)); 2226 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2227 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2228 aprint_error_dev(sc->sc_dev, 2229 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2230 IWI_FW_GET_MAJOR(hdr->version), 2231 IWI_FW_GET_MINOR(hdr->version), 2232 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2233 error = EIO; 2234 goto fail2; 2235 } 2236 2237 kfw->boot_size = hdr->bsize; 2238 kfw->ucode_size = hdr->usize; 2239 kfw->main_size = hdr->fsize; 2240 2241 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2242 kfw->boot = fw; 2243 fw += kfw->boot_size; 2244 kfw->ucode = fw; 2245 fw += kfw->ucode_size; 2246 kfw->main = fw; 2247 2248 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2249 kfw->boot, kfw->ucode, kfw->main)); 2250 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2251 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2252 2253 sc->flags |= IWI_FLAG_FW_CACHED; 2254 2255 return 0; 2256 2257 2258 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2259 fail1: 2260 return error; 2261 } 2262 2263 static void 2264 iwi_free_firmware(struct iwi_softc *sc) 2265 { 2266 2267 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2268 return; 2269 2270 firmware_free(sc->sc_blob, sc->sc_blobsize); 2271 2272 sc->flags &= ~IWI_FLAG_FW_CACHED; 2273 } 2274 2275 static int 2276 iwi_config(struct iwi_softc *sc) 2277 { 2278 struct ieee80211com *ic = &sc->sc_ic; 2279 struct ifnet *ifp = &sc->sc_if; 2280 struct iwi_configuration config; 2281 struct iwi_rateset rs; 2282 struct iwi_txpower power; 2283 struct ieee80211_key *wk; 2284 struct iwi_wep_key wepkey; 2285 uint32_t data; 2286 int error, nchan, i; 2287 2288 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2289 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2290 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2291 IEEE80211_ADDR_LEN, 0); 2292 if (error != 0) 2293 return error; 2294 2295 memset(&config, 0, sizeof config); 2296 config.bluetooth_coexistence = sc->bluetooth; 2297 config.antenna = sc->antenna; 2298 config.silence_threshold = 0x1e; 2299 config.multicast_enabled = 1; 2300 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2301 config.disable_unicast_decryption = 1; 2302 config.disable_multicast_decryption = 1; 2303 DPRINTF(("Configuring adapter\n")); 2304 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2305 0); 2306 if (error != 0) 2307 return error; 2308 2309 data = htole32(IWI_POWER_MODE_CAM); 2310 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2311 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2312 if (error != 0) 2313 return error; 2314 2315 data = htole32(ic->ic_rtsthreshold); 2316 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2317 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2318 if (error != 0) 2319 return error; 2320 2321 data = htole32(ic->ic_fragthreshold); 2322 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2323 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2324 if (error != 0) 2325 return error; 2326 2327 /* 2328 * Set default Tx power for 802.11b/g and 802.11a channels. 2329 */ 2330 nchan = 0; 2331 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2332 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2333 continue; 2334 power.chan[nchan].chan = i; 2335 power.chan[nchan].power = IWI_TXPOWER_MAX; 2336 nchan++; 2337 } 2338 power.nchan = nchan; 2339 2340 power.mode = IWI_MODE_11G; 2341 DPRINTF(("Setting .11g channels tx power\n")); 2342 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2343 if (error != 0) 2344 return error; 2345 2346 power.mode = IWI_MODE_11B; 2347 DPRINTF(("Setting .11b channels tx power\n")); 2348 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2349 if (error != 0) 2350 return error; 2351 2352 nchan = 0; 2353 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2354 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2355 continue; 2356 power.chan[nchan].chan = i; 2357 power.chan[nchan].power = IWI_TXPOWER_MAX; 2358 nchan++; 2359 } 2360 power.nchan = nchan; 2361 2362 if (nchan > 0) { /* 2915ABG only */ 2363 power.mode = IWI_MODE_11A; 2364 DPRINTF(("Setting .11a channels tx power\n")); 2365 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2366 0); 2367 if (error != 0) 2368 return error; 2369 } 2370 2371 rs.mode = IWI_MODE_11G; 2372 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2373 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2374 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2375 rs.nrates); 2376 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2377 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2378 if (error != 0) 2379 return error; 2380 2381 rs.mode = IWI_MODE_11A; 2382 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2383 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2384 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2385 rs.nrates); 2386 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2387 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2388 if (error != 0) 2389 return error; 2390 2391 /* if we have a desired ESSID, set it now */ 2392 if (ic->ic_des_esslen != 0) { 2393 #ifdef IWI_DEBUG 2394 if (iwi_debug > 0) { 2395 printf("Setting desired ESSID to "); 2396 ieee80211_print_essid(ic->ic_des_essid, 2397 ic->ic_des_esslen); 2398 printf("\n"); 2399 } 2400 #endif 2401 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2402 ic->ic_des_esslen, 0); 2403 if (error != 0) 2404 return error; 2405 } 2406 2407 cprng_fast(&data, sizeof(data)); 2408 data = htole32(data); 2409 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2410 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2411 if (error != 0) 2412 return error; 2413 2414 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2415 /* XXX iwi_setwepkeys? */ 2416 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2417 wk = &ic->ic_crypto.cs_nw_keys[i]; 2418 2419 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2420 wepkey.idx = i; 2421 wepkey.len = wk->wk_keylen; 2422 memset(wepkey.key, 0, sizeof wepkey.key); 2423 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2424 DPRINTF(("Setting wep key index %u len %u\n", 2425 wepkey.idx, wepkey.len)); 2426 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2427 sizeof wepkey, 0); 2428 if (error != 0) 2429 return error; 2430 } 2431 } 2432 2433 /* Enable adapter */ 2434 DPRINTF(("Enabling adapter\n")); 2435 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2436 } 2437 2438 static int 2439 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2440 { 2441 struct ieee80211com *ic = &sc->sc_ic; 2442 struct iwi_scan_v2 scan; 2443 2444 (void)memset(&scan, 0, sizeof scan); 2445 2446 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2447 scan.channels[0] = 1 | 2448 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2449 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2450 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2451 2452 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2453 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2454 } 2455 2456 static int 2457 iwi_scan(struct iwi_softc *sc) 2458 { 2459 struct ieee80211com *ic = &sc->sc_ic; 2460 struct iwi_scan_v2 scan; 2461 uint32_t type; 2462 uint8_t *p; 2463 int i, count, idx; 2464 2465 (void)memset(&scan, 0, sizeof scan); 2466 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2467 htole16(sc->dwelltime); 2468 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2469 htole16(sc->dwelltime); 2470 2471 /* tell the firmware about the desired essid */ 2472 if (ic->ic_des_esslen) { 2473 int error; 2474 2475 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2476 __func__, ic->ic_des_essid)); 2477 2478 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2479 ic->ic_des_essid, ic->ic_des_esslen, 1); 2480 if (error) 2481 return error; 2482 2483 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2484 } else { 2485 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2486 } 2487 2488 p = &scan.channels[0]; 2489 count = idx = 0; 2490 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2491 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2492 isset(ic->ic_chan_active, i)) { 2493 *++p = i; 2494 count++; 2495 idx++; 2496 iwi_scan_type_set(scan, idx, type); 2497 } 2498 } 2499 if (count) { 2500 *(p - count) = IWI_CHAN_5GHZ | count; 2501 p++; 2502 } 2503 2504 count = 0; 2505 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2506 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2507 isset(ic->ic_chan_active, i)) { 2508 *++p = i; 2509 count++; 2510 idx++; 2511 iwi_scan_type_set(scan, idx, type); 2512 } 2513 } 2514 *(p - count) = IWI_CHAN_2GHZ | count; 2515 2516 DPRINTF(("Start scanning\n")); 2517 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2518 } 2519 2520 static int 2521 iwi_auth_and_assoc(struct iwi_softc *sc) 2522 { 2523 struct ieee80211com *ic = &sc->sc_ic; 2524 struct ieee80211_node *ni = ic->ic_bss; 2525 struct ifnet *ifp = &sc->sc_if; 2526 struct ieee80211_wme_info wme; 2527 struct iwi_configuration config; 2528 struct iwi_associate assoc; 2529 struct iwi_rateset rs; 2530 uint16_t capinfo; 2531 uint32_t data; 2532 int error; 2533 2534 memset(&config, 0, sizeof config); 2535 config.bluetooth_coexistence = sc->bluetooth; 2536 config.antenna = sc->antenna; 2537 config.multicast_enabled = 1; 2538 config.silence_threshold = 0x1e; 2539 if (ic->ic_curmode == IEEE80211_MODE_11G) 2540 config.use_protection = 1; 2541 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2542 config.disable_unicast_decryption = 1; 2543 config.disable_multicast_decryption = 1; 2544 2545 DPRINTF(("Configuring adapter\n")); 2546 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2547 sizeof config, 1); 2548 if (error != 0) 2549 return error; 2550 2551 #ifdef IWI_DEBUG 2552 if (iwi_debug > 0) { 2553 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2554 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2555 aprint_debug("\n"); 2556 } 2557 #endif 2558 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2559 if (error != 0) 2560 return error; 2561 2562 /* the rate set has already been "negotiated" */ 2563 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2564 IWI_MODE_11G; 2565 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2566 rs.nrates = ni->ni_rates.rs_nrates; 2567 2568 if (rs.nrates > IWI_RATESET_SIZE) { 2569 DPRINTF(("Truncating negotiated rate set from %u\n", 2570 rs.nrates)); 2571 rs.nrates = IWI_RATESET_SIZE; 2572 } 2573 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2574 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2575 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2576 if (error != 0) 2577 return error; 2578 2579 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2580 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2581 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2582 wme.wme_oui[0] = 0x00; 2583 wme.wme_oui[1] = 0x50; 2584 wme.wme_oui[2] = 0xf2; 2585 wme.wme_type = WME_OUI_TYPE; 2586 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2587 wme.wme_version = WME_VERSION; 2588 wme.wme_info = 0; 2589 2590 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2591 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2592 if (error != 0) 2593 return error; 2594 } 2595 2596 if (ic->ic_opt_ie != NULL) { 2597 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2598 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2599 ic->ic_opt_ie_len, 1); 2600 if (error != 0) 2601 return error; 2602 } 2603 data = htole32(ni->ni_rssi); 2604 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2605 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2606 if (error != 0) 2607 return error; 2608 2609 memset(&assoc, 0, sizeof assoc); 2610 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2611 assoc.mode = IWI_MODE_11A; 2612 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2613 assoc.mode = IWI_MODE_11G; 2614 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2615 assoc.mode = IWI_MODE_11B; 2616 2617 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2618 2619 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2620 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2621 2622 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2623 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2624 2625 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2626 assoc.policy |= htole16(IWI_POLICY_WME); 2627 if (ic->ic_flags & IEEE80211_F_WPA) 2628 assoc.policy |= htole16(IWI_POLICY_WPA); 2629 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2630 assoc.type = IWI_HC_IBSS_START; 2631 else 2632 assoc.type = IWI_HC_ASSOC; 2633 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2634 2635 if (ic->ic_opmode == IEEE80211_M_IBSS) 2636 capinfo = IEEE80211_CAPINFO_IBSS; 2637 else 2638 capinfo = IEEE80211_CAPINFO_ESS; 2639 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2640 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2641 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2642 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2643 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2644 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2645 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2646 assoc.capinfo = htole16(capinfo); 2647 2648 assoc.lintval = htole16(ic->ic_lintval); 2649 assoc.intval = htole16(ni->ni_intval); 2650 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2651 if (ic->ic_opmode == IEEE80211_M_IBSS) 2652 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2653 else 2654 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2655 2656 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2657 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2658 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2659 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2660 assoc.chan, le16toh(assoc.policy), assoc.auth, 2661 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2662 le16toh(assoc.intval))); 2663 2664 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2665 } 2666 2667 static int 2668 iwi_init(struct ifnet *ifp) 2669 { 2670 struct iwi_softc *sc = ifp->if_softc; 2671 struct ieee80211com *ic = &sc->sc_ic; 2672 struct iwi_firmware *fw = &sc->fw; 2673 int i, error; 2674 2675 /* exit immediately if firmware has not been ioctl'd */ 2676 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2677 if ((error = iwi_cache_firmware(sc)) != 0) { 2678 aprint_error_dev(sc->sc_dev, 2679 "could not cache the firmware\n"); 2680 goto fail; 2681 } 2682 } 2683 2684 iwi_stop(ifp, 0); 2685 2686 if ((error = iwi_reset(sc)) != 0) { 2687 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2688 goto fail; 2689 } 2690 2691 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2692 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2693 goto fail; 2694 } 2695 2696 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2697 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2698 goto fail; 2699 } 2700 2701 iwi_stop_master(sc); 2702 2703 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2704 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2705 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2706 2707 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2708 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2709 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2710 2711 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2712 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2713 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2714 2715 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2716 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2717 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2718 2719 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2720 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2721 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2722 2723 for (i = 0; i < sc->rxq.count; i++) 2724 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2725 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2726 2727 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2728 2729 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2730 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2731 goto fail; 2732 } 2733 2734 sc->flags |= IWI_FLAG_FW_INITED; 2735 2736 if ((error = iwi_config(sc)) != 0) { 2737 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2738 goto fail; 2739 } 2740 2741 ic->ic_state = IEEE80211_S_INIT; 2742 2743 ifp->if_flags &= ~IFF_OACTIVE; 2744 ifp->if_flags |= IFF_RUNNING; 2745 2746 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2747 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2748 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2749 } else 2750 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2751 2752 return 0; 2753 2754 fail: ifp->if_flags &= ~IFF_UP; 2755 iwi_stop(ifp, 0); 2756 2757 return error; 2758 } 2759 2760 2761 /* 2762 * Return whether or not the radio is enabled in hardware 2763 * (i.e. the rfkill switch is "off"). 2764 */ 2765 static int 2766 iwi_getrfkill(struct iwi_softc *sc) 2767 { 2768 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2769 } 2770 2771 static int 2772 iwi_sysctl_radio(SYSCTLFN_ARGS) 2773 { 2774 struct sysctlnode node; 2775 struct iwi_softc *sc; 2776 int val, error; 2777 2778 node = *rnode; 2779 sc = (struct iwi_softc *)node.sysctl_data; 2780 2781 val = !iwi_getrfkill(sc); 2782 2783 node.sysctl_data = &val; 2784 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2785 2786 if (error || newp == NULL) 2787 return error; 2788 2789 return 0; 2790 } 2791 2792 #ifdef IWI_DEBUG 2793 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2794 { 2795 int rc; 2796 const struct sysctlnode *rnode; 2797 const struct sysctlnode *cnode; 2798 2799 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2800 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2801 SYSCTL_DESCR("iwi global controls"), 2802 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2803 goto err; 2804 2805 /* control debugging printfs */ 2806 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2807 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2808 "debug", SYSCTL_DESCR("Enable debugging output"), 2809 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2810 goto err; 2811 2812 return; 2813 err: 2814 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2815 } 2816 2817 #endif /* IWI_DEBUG */ 2818 2819 /* 2820 * Add sysctl knobs. 2821 */ 2822 static void 2823 iwi_sysctlattach(struct iwi_softc *sc) 2824 { 2825 int rc; 2826 const struct sysctlnode *rnode; 2827 const struct sysctlnode *cnode; 2828 2829 struct sysctllog **clog = &sc->sc_sysctllog; 2830 2831 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2832 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2833 SYSCTL_DESCR("iwi controls and statistics"), 2834 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2835 goto err; 2836 2837 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2838 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2839 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2840 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2841 goto err; 2842 2843 sc->dwelltime = 100; 2844 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2845 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2846 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2847 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2848 goto err; 2849 2850 sc->bluetooth = 0; 2851 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2852 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2853 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2854 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2855 goto err; 2856 2857 sc->antenna = IWI_ANTENNA_AUTO; 2858 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2859 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2860 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2861 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2862 goto err; 2863 2864 return; 2865 err: 2866 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2867 } 2868 2869 static void 2870 iwi_stop(struct ifnet *ifp, int disable) 2871 { 2872 struct iwi_softc *sc = ifp->if_softc; 2873 struct ieee80211com *ic = &sc->sc_ic; 2874 2875 IWI_LED_OFF(sc); 2876 2877 iwi_stop_master(sc); 2878 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2879 2880 /* reset rings */ 2881 iwi_reset_cmd_ring(sc, &sc->cmdq); 2882 iwi_reset_tx_ring(sc, &sc->txq[0]); 2883 iwi_reset_tx_ring(sc, &sc->txq[1]); 2884 iwi_reset_tx_ring(sc, &sc->txq[2]); 2885 iwi_reset_tx_ring(sc, &sc->txq[3]); 2886 iwi_reset_rx_ring(sc, &sc->rxq); 2887 2888 ifp->if_timer = 0; 2889 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2890 2891 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2892 } 2893 2894 static void 2895 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2896 { 2897 uint32_t val; 2898 2899 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2900 2901 switch (sc->nictype) { 2902 case 1: 2903 /* special NIC type: reversed leds */ 2904 if (state == IWI_LED_ACTIVITY) { 2905 state &= ~IWI_LED_ACTIVITY; 2906 state |= IWI_LED_ASSOCIATED; 2907 } else if (state == IWI_LED_ASSOCIATED) { 2908 state &= ~IWI_LED_ASSOCIATED; 2909 state |= IWI_LED_ACTIVITY; 2910 } 2911 /* and ignore toggle effect */ 2912 val |= state; 2913 break; 2914 case 0: 2915 case 2: 2916 case 3: 2917 case 4: 2918 val = (toggle && (val & state)) ? val & ~state : val | state; 2919 break; 2920 default: 2921 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2922 sc->nictype); 2923 return; 2924 break; 2925 } 2926 2927 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2928 2929 return; 2930 } 2931 2932 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2933 { 2934 const struct sysctlnode *rnode; 2935 const struct sysctlnode *cnode; 2936 2937 sysctl_createv(NULL, 0, NULL, &rnode, 2938 CTLFLAG_PERMANENT, 2939 CTLTYPE_NODE, "iwi", 2940 NULL, 2941 NULL, 0, 2942 NULL, 0, 2943 CTL_HW, CTL_CREATE, CTL_EOL); 2944 2945 sysctl_createv(NULL, 0, &rnode, &cnode, 2946 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2947 CTLTYPE_INT, "accept_eula", 2948 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2949 NULL, 0, 2950 &iwi_accept_eula, sizeof(iwi_accept_eula), 2951 CTL_CREATE, CTL_EOL); 2952 } 2953