1 /* $NetBSD: if_iwi.c,v 1.115 2021/05/08 00:27:02 thorpej 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 1.115 2021/05/08 00:27:02 thorpej 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 void iwi_softintr(void *); 121 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 122 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 123 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 124 int); 125 static void iwi_start(struct ifnet *); 126 static void iwi_watchdog(struct ifnet *); 127 128 static int iwi_alloc_unr(struct iwi_softc *); 129 static void iwi_free_unr(struct iwi_softc *, int); 130 131 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 132 133 static int iwi_ioctl(struct ifnet *, u_long, void *); 134 static void iwi_stop_master(struct iwi_softc *); 135 static int iwi_reset(struct iwi_softc *); 136 static int iwi_load_ucode(struct iwi_softc *, void *, int); 137 static int iwi_load_firmware(struct iwi_softc *, void *, int); 138 static int iwi_cache_firmware(struct iwi_softc *); 139 static void iwi_free_firmware(struct iwi_softc *); 140 static int iwi_config(struct iwi_softc *); 141 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 142 static int iwi_scan(struct iwi_softc *); 143 static int iwi_auth_and_assoc(struct iwi_softc *); 144 static int iwi_init(struct ifnet *); 145 static void iwi_stop(struct ifnet *, int); 146 static int iwi_getrfkill(struct iwi_softc *); 147 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 148 static void iwi_sysctlattach(struct iwi_softc *); 149 150 static inline uint8_t 151 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 152 { 153 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 154 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 155 } 156 157 static inline uint32_t 158 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 159 { 160 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 161 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 162 } 163 164 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 165 iwi_detach, NULL); 166 167 static const struct device_compatible_entry compat_data[] = { 168 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 169 PCI_PRODUCT_INTEL_PRO_WL_2200BG), }, 170 171 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 172 PCI_PRODUCT_INTEL_PRO_WL_2225BG), }, 173 174 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 175 PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1), }, 176 177 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 178 PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2), }, 179 180 181 PCI_COMPAT_EOL 182 }; 183 184 static int 185 iwi_match(device_t parent, cfdata_t match, void *aux) 186 { 187 struct pci_attach_args *pa = aux; 188 189 return pci_compatible_match(pa, compat_data); 190 } 191 192 /* Base Address Register */ 193 #define IWI_PCI_BAR0 0x10 194 195 static void 196 iwi_attach(device_t parent, device_t self, void *aux) 197 { 198 struct iwi_softc *sc = device_private(self); 199 struct ieee80211com *ic = &sc->sc_ic; 200 struct ifnet *ifp = &sc->sc_if; 201 struct pci_attach_args *pa = aux; 202 const char *intrstr; 203 bus_space_tag_t memt; 204 bus_space_handle_t memh; 205 pci_intr_handle_t ih; 206 pcireg_t data; 207 uint16_t val; 208 int error, i; 209 char intrbuf[PCI_INTRSTR_LEN]; 210 211 sc->sc_dev = self; 212 sc->sc_pct = pa->pa_pc; 213 sc->sc_pcitag = pa->pa_tag; 214 215 pci_aprint_devinfo(pa, NULL); 216 217 /* clear unit numbers allocated to IBSS */ 218 sc->sc_unr = 0; 219 220 /* power up chip */ 221 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 222 NULL)) && error != EOPNOTSUPP) { 223 aprint_error_dev(self, "cannot activate %d\n", error); 224 return; 225 } 226 227 /* clear device specific PCI configuration register 0x41 */ 228 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 229 data &= ~0x0000ff00; 230 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 231 232 233 /* enable bus-mastering */ 234 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 235 data |= PCI_COMMAND_MASTER_ENABLE; 236 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 237 238 /* map the register window */ 239 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 240 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 241 if (error != 0) { 242 aprint_error_dev(self, "could not map memory space\n"); 243 return; 244 } 245 246 sc->sc_st = memt; 247 sc->sc_sh = memh; 248 sc->sc_dmat = pa->pa_dmat; 249 250 /* disable interrupts */ 251 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 252 253 sc->sc_soft_ih = softint_establish(SOFTINT_NET, iwi_softintr, sc); 254 if (sc->sc_soft_ih == NULL) { 255 aprint_error_dev(self, "could not establish softint\n"); 256 return; 257 } 258 259 if (pci_intr_map(pa, &ih) != 0) { 260 softint_disestablish(sc->sc_soft_ih); 261 sc->sc_soft_ih = NULL; 262 aprint_error_dev(self, "could not map interrupt\n"); 263 return; 264 } 265 266 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 267 sc->sc_ih = pci_intr_establish_xname(sc->sc_pct, ih, IPL_NET, iwi_intr, 268 sc, device_xname(self)); 269 if (sc->sc_ih == NULL) { 270 softint_disestablish(sc->sc_soft_ih); 271 sc->sc_soft_ih = NULL; 272 aprint_error_dev(self, "could not establish interrupt"); 273 if (intrstr != NULL) 274 aprint_error(" at %s", intrstr); 275 aprint_error("\n"); 276 return; 277 } 278 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 279 280 if (iwi_reset(sc) != 0) { 281 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 282 softint_disestablish(sc->sc_soft_ih); 283 sc->sc_soft_ih = NULL; 284 aprint_error_dev(self, "could not reset adapter\n"); 285 return; 286 } 287 288 ic->ic_ifp = ifp; 289 ic->ic_wme.wme_update = iwi_wme_update; 290 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 291 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 292 ic->ic_state = IEEE80211_S_INIT; 293 294 sc->sc_fwname = "ipw2200-bss.fw"; 295 296 /* set device capabilities */ 297 ic->ic_caps = 298 IEEE80211_C_IBSS | /* IBSS mode supported */ 299 IEEE80211_C_MONITOR | /* monitor mode supported */ 300 IEEE80211_C_TXPMGT | /* tx power management */ 301 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 302 IEEE80211_C_SHSLOT | /* short slot time supported */ 303 IEEE80211_C_WPA | /* 802.11i */ 304 IEEE80211_C_WME; /* 802.11e */ 305 306 /* read MAC address from EEPROM */ 307 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 308 ic->ic_myaddr[0] = val & 0xff; 309 ic->ic_myaddr[1] = val >> 8; 310 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 311 ic->ic_myaddr[2] = val & 0xff; 312 ic->ic_myaddr[3] = val >> 8; 313 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 314 ic->ic_myaddr[4] = val & 0xff; 315 ic->ic_myaddr[5] = val >> 8; 316 317 aprint_verbose_dev(self, "802.11 address %s\n", 318 ether_sprintf(ic->ic_myaddr)); 319 320 /* read the NIC type from EEPROM */ 321 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 322 sc->nictype = val & 0xff; 323 324 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 325 326 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 327 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 328 /* set supported .11a rates (2915ABG only) */ 329 ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; 330 331 /* set supported .11a channels */ 332 for (i = 36; i <= 64; i += 4) { 333 ic->ic_channels[i].ic_freq = 334 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 335 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 336 } 337 for (i = 149; i <= 165; i += 4) { 338 ic->ic_channels[i].ic_freq = 339 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 340 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 341 } 342 } 343 344 /* set supported .11b and .11g rates */ 345 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 346 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 347 348 /* set supported .11b and .11g channels (1 through 14) */ 349 for (i = 1; i <= 14; i++) { 350 ic->ic_channels[i].ic_freq = 351 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 352 ic->ic_channels[i].ic_flags = 353 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 354 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 355 } 356 357 ifp->if_softc = sc; 358 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 359 ifp->if_init = iwi_init; 360 ifp->if_stop = iwi_stop; 361 ifp->if_ioctl = iwi_ioctl; 362 ifp->if_start = iwi_start; 363 ifp->if_watchdog = iwi_watchdog; 364 IFQ_SET_READY(&ifp->if_snd); 365 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 366 367 error = if_initialize(ifp); 368 if (error != 0) { 369 ifp->if_softc = NULL; /* For iwi_detach() */ 370 aprint_error_dev(sc->sc_dev, "if_initialize failed(%d)\n", 371 error); 372 goto fail; 373 } 374 ieee80211_ifattach(ic); 375 /* Use common softint-based if_input */ 376 ifp->if_percpuq = if_percpuq_create(ifp); 377 if_register(ifp); 378 379 /* override default methods */ 380 ic->ic_node_alloc = iwi_node_alloc; 381 sc->sc_node_free = ic->ic_node_free; 382 ic->ic_node_free = iwi_node_free; 383 /* override state transition machine */ 384 sc->sc_newstate = ic->ic_newstate; 385 ic->ic_newstate = iwi_newstate; 386 387 /* XXX media locking needs revisiting */ 388 mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 389 ieee80211_media_init_with_lock(ic, 390 iwi_media_change, iwi_media_status, &sc->sc_media_mtx); 391 392 /* 393 * Allocate rings. 394 */ 395 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 396 aprint_error_dev(self, "could not allocate command ring\n"); 397 goto fail; 398 } 399 400 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 401 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 402 if (error != 0) { 403 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 404 goto fail; 405 } 406 407 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 408 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 409 if (error != 0) { 410 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 411 goto fail; 412 } 413 414 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 415 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 416 if (error != 0) { 417 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 418 goto fail; 419 } 420 421 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 422 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 423 if (error != 0) { 424 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 425 goto fail; 426 } 427 428 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 429 aprint_error_dev(self, "could not allocate Rx ring\n"); 430 goto fail; 431 } 432 433 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 434 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 435 436 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 437 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 438 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 439 440 sc->sc_txtap_len = sizeof sc->sc_txtapu; 441 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 442 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 443 444 iwi_sysctlattach(sc); 445 446 if (pmf_device_register(self, NULL, NULL)) 447 pmf_class_network_register(self, ifp); 448 else 449 aprint_error_dev(self, "couldn't establish power handler\n"); 450 451 ieee80211_announce(ic); 452 453 return; 454 455 fail: iwi_detach(self, 0); 456 } 457 458 static int 459 iwi_detach(device_t self, int flags) 460 { 461 struct iwi_softc *sc = device_private(self); 462 struct ifnet *ifp = &sc->sc_if; 463 464 if (ifp->if_softc != NULL) { 465 pmf_device_deregister(self); 466 iwi_stop(ifp, 1); 467 iwi_free_firmware(sc); 468 ieee80211_ifdetach(&sc->sc_ic); 469 if_detach(ifp); 470 } 471 472 iwi_free_cmd_ring(sc, &sc->cmdq); 473 iwi_free_tx_ring(sc, &sc->txq[0]); 474 iwi_free_tx_ring(sc, &sc->txq[1]); 475 iwi_free_tx_ring(sc, &sc->txq[2]); 476 iwi_free_tx_ring(sc, &sc->txq[3]); 477 iwi_free_rx_ring(sc, &sc->rxq); 478 479 if (sc->sc_ih != NULL) { 480 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 481 sc->sc_ih = NULL; 482 } 483 484 if (sc->sc_soft_ih != NULL) { 485 softint_disestablish(sc->sc_soft_ih); 486 sc->sc_soft_ih = NULL; 487 } 488 489 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 490 491 return 0; 492 } 493 494 static int 495 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 496 int count) 497 { 498 int error, nsegs; 499 500 ring->count = count; 501 ring->queued = 0; 502 ring->cur = ring->next = 0; 503 504 /* 505 * Allocate and map command ring 506 */ 507 error = bus_dmamap_create(sc->sc_dmat, 508 IWI_CMD_DESC_SIZE * count, 1, 509 IWI_CMD_DESC_SIZE * count, 0, 510 BUS_DMA_NOWAIT, &ring->desc_map); 511 if (error != 0) { 512 aprint_error_dev(sc->sc_dev, 513 "could not create command ring DMA map\n"); 514 ring->desc_map = NULL; 515 goto fail; 516 } 517 518 error = bus_dmamem_alloc(sc->sc_dmat, 519 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 520 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 521 if (error != 0) { 522 aprint_error_dev(sc->sc_dev, 523 "could not allocate command ring DMA memory\n"); 524 goto fail; 525 } 526 527 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 528 IWI_CMD_DESC_SIZE * count, 529 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 530 if (error != 0) { 531 aprint_error_dev(sc->sc_dev, 532 "could not map command ring DMA memory\n"); 533 goto fail; 534 } 535 536 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 537 IWI_CMD_DESC_SIZE * count, NULL, 538 BUS_DMA_NOWAIT); 539 if (error != 0) { 540 aprint_error_dev(sc->sc_dev, 541 "could not load command ring DMA map\n"); 542 goto fail; 543 } 544 545 memset(sc->cmdq.desc, 0, 546 IWI_CMD_DESC_SIZE * count); 547 548 return 0; 549 550 fail: return error; 551 } 552 553 static void 554 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 555 { 556 int i; 557 558 for (i = ring->next; i != ring->cur;) { 559 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 560 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 561 BUS_DMASYNC_POSTWRITE); 562 563 wakeup(&ring->desc[i]); 564 i = (i + 1) % ring->count; 565 } 566 567 ring->queued = 0; 568 ring->cur = ring->next = 0; 569 } 570 571 static void 572 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 573 { 574 if (ring->desc_map != NULL) { 575 if (ring->desc != NULL) { 576 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 577 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 578 IWI_CMD_DESC_SIZE * ring->count); 579 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 580 } 581 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 582 } 583 } 584 585 static int 586 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 587 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 588 { 589 int i, error, nsegs; 590 591 ring->count = 0; 592 ring->queued = 0; 593 ring->cur = ring->next = 0; 594 ring->csr_ridx = csr_ridx; 595 ring->csr_widx = csr_widx; 596 597 /* 598 * Allocate and map Tx ring 599 */ 600 error = bus_dmamap_create(sc->sc_dmat, 601 IWI_TX_DESC_SIZE * count, 1, 602 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 603 &ring->desc_map); 604 if (error != 0) { 605 aprint_error_dev(sc->sc_dev, 606 "could not create tx ring DMA map\n"); 607 ring->desc_map = NULL; 608 goto fail; 609 } 610 611 error = bus_dmamem_alloc(sc->sc_dmat, 612 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 613 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 614 if (error != 0) { 615 aprint_error_dev(sc->sc_dev, 616 "could not allocate tx ring DMA memory\n"); 617 goto fail; 618 } 619 620 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 621 IWI_TX_DESC_SIZE * count, 622 (void **)&ring->desc, BUS_DMA_NOWAIT); 623 if (error != 0) { 624 aprint_error_dev(sc->sc_dev, 625 "could not map tx ring DMA memory\n"); 626 goto fail; 627 } 628 629 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 630 IWI_TX_DESC_SIZE * count, NULL, 631 BUS_DMA_NOWAIT); 632 if (error != 0) { 633 aprint_error_dev(sc->sc_dev, 634 "could not load tx ring DMA map\n"); 635 goto fail; 636 } 637 638 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 639 640 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 641 M_WAITOK | M_ZERO); 642 ring->count = count; 643 644 /* 645 * Allocate Tx buffers DMA maps 646 */ 647 for (i = 0; i < count; i++) { 648 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 649 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 650 if (error != 0) { 651 aprint_error_dev(sc->sc_dev, 652 "could not create tx buf DMA map"); 653 ring->data[i].map = NULL; 654 goto fail; 655 } 656 } 657 return 0; 658 659 fail: return error; 660 } 661 662 static void 663 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 664 { 665 struct iwi_tx_data *data; 666 int i; 667 668 for (i = 0; i < ring->count; i++) { 669 data = &ring->data[i]; 670 671 if (data->m != NULL) { 672 m_freem(data->m); 673 data->m = NULL; 674 } 675 676 if (data->map != NULL) { 677 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 678 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 679 bus_dmamap_unload(sc->sc_dmat, data->map); 680 } 681 682 if (data->ni != NULL) { 683 ieee80211_free_node(data->ni); 684 data->ni = NULL; 685 } 686 } 687 688 ring->queued = 0; 689 ring->cur = ring->next = 0; 690 } 691 692 static void 693 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 694 { 695 int i; 696 struct iwi_tx_data *data; 697 698 if (ring->desc_map != NULL) { 699 if (ring->desc != NULL) { 700 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 701 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 702 IWI_TX_DESC_SIZE * ring->count); 703 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 704 } 705 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 706 } 707 708 for (i = 0; i < ring->count; i++) { 709 data = &ring->data[i]; 710 711 if (data->m != NULL) { 712 m_freem(data->m); 713 } 714 715 if (data->map != NULL) { 716 bus_dmamap_unload(sc->sc_dmat, data->map); 717 bus_dmamap_destroy(sc->sc_dmat, data->map); 718 } 719 } 720 } 721 722 static int 723 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 724 { 725 int i, error; 726 727 ring->count = 0; 728 ring->cur = 0; 729 730 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 731 M_WAITOK | M_ZERO); 732 ring->count = count; 733 734 /* 735 * Allocate and map Rx buffers 736 */ 737 for (i = 0; i < count; i++) { 738 739 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 740 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 741 if (error != 0) { 742 aprint_error_dev(sc->sc_dev, 743 "could not create rx buf DMA map"); 744 ring->data[i].map = NULL; 745 goto fail; 746 } 747 748 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 749 error = ENOMEM; 750 goto fail; 751 } 752 753 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 754 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 755 if (error != 0) { 756 aprint_error_dev(sc->sc_dev, 757 "could not load rx buffer DMA map\n"); 758 goto fail; 759 } 760 761 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 762 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 763 } 764 765 return 0; 766 767 fail: return error; 768 } 769 770 static void 771 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 772 { 773 ring->cur = 0; 774 } 775 776 static void 777 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 778 { 779 int i; 780 struct iwi_rx_data *data; 781 782 for (i = 0; i < ring->count; i++) { 783 data = &ring->data[i]; 784 785 if (data->m != NULL) { 786 m_freem(data->m); 787 } 788 789 if (data->map != NULL) { 790 bus_dmamap_unload(sc->sc_dmat, data->map); 791 bus_dmamap_destroy(sc->sc_dmat, data->map); 792 } 793 794 } 795 } 796 797 static struct ieee80211_node * 798 iwi_node_alloc(struct ieee80211_node_table *nt) 799 { 800 struct iwi_node *in; 801 802 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 803 if (in == NULL) 804 return NULL; 805 806 in->in_station = -1; 807 808 return &in->in_node; 809 } 810 811 static int 812 iwi_alloc_unr(struct iwi_softc *sc) 813 { 814 int i; 815 816 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 817 if ((sc->sc_unr & (1 << i)) == 0) { 818 sc->sc_unr |= 1 << i; 819 return i; 820 } 821 822 return -1; 823 } 824 825 static void 826 iwi_free_unr(struct iwi_softc *sc, int r) 827 { 828 829 sc->sc_unr &= 1 << r; 830 } 831 832 static void 833 iwi_node_free(struct ieee80211_node *ni) 834 { 835 struct ieee80211com *ic = ni->ni_ic; 836 struct iwi_softc *sc = ic->ic_ifp->if_softc; 837 struct iwi_node *in = (struct iwi_node *)ni; 838 839 if (in->in_station != -1) 840 iwi_free_unr(sc, in->in_station); 841 842 sc->sc_node_free(ni); 843 } 844 845 static int 846 iwi_media_change(struct ifnet *ifp) 847 { 848 int error; 849 850 error = ieee80211_media_change(ifp); 851 if (error != ENETRESET) 852 return error; 853 854 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 855 iwi_init(ifp); 856 857 return 0; 858 } 859 860 /* 861 * Convert h/w rate code to IEEE rate code. 862 */ 863 static int 864 iwi_cvtrate(int iwirate) 865 { 866 switch (iwirate) { 867 case IWI_RATE_DS1: return 2; 868 case IWI_RATE_DS2: return 4; 869 case IWI_RATE_DS5: return 11; 870 case IWI_RATE_DS11: return 22; 871 case IWI_RATE_OFDM6: return 12; 872 case IWI_RATE_OFDM9: return 18; 873 case IWI_RATE_OFDM12: return 24; 874 case IWI_RATE_OFDM18: return 36; 875 case IWI_RATE_OFDM24: return 48; 876 case IWI_RATE_OFDM36: return 72; 877 case IWI_RATE_OFDM48: return 96; 878 case IWI_RATE_OFDM54: return 108; 879 } 880 return 0; 881 } 882 883 /* 884 * The firmware automatically adapts the transmit speed. We report its current 885 * value here. 886 */ 887 static void 888 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 889 { 890 struct iwi_softc *sc = ifp->if_softc; 891 struct ieee80211com *ic = &sc->sc_ic; 892 int rate; 893 894 imr->ifm_status = IFM_AVALID; 895 imr->ifm_active = IFM_IEEE80211; 896 if (ic->ic_state == IEEE80211_S_RUN) 897 imr->ifm_status |= IFM_ACTIVE; 898 899 /* read current transmission rate from adapter */ 900 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 901 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 902 903 switch (ic->ic_opmode) { 904 case IEEE80211_M_STA: 905 break; 906 907 case IEEE80211_M_IBSS: 908 imr->ifm_active |= IFM_IEEE80211_ADHOC; 909 break; 910 911 case IEEE80211_M_MONITOR: 912 imr->ifm_active |= IFM_IEEE80211_MONITOR; 913 break; 914 915 case IEEE80211_M_AHDEMO: 916 case IEEE80211_M_HOSTAP: 917 /* should not get there */ 918 break; 919 } 920 } 921 922 static int 923 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 924 { 925 struct iwi_softc *sc = ic->ic_ifp->if_softc; 926 927 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 928 ieee80211_state_name[ic->ic_state], 929 ieee80211_state_name[nstate], sc->flags)); 930 931 switch (nstate) { 932 case IEEE80211_S_SCAN: 933 if (sc->flags & IWI_FLAG_SCANNING) 934 break; 935 936 ieee80211_node_table_reset(&ic->ic_scan); 937 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 938 sc->flags |= IWI_FLAG_SCANNING; 939 /* blink the led while scanning */ 940 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 941 iwi_scan(sc); 942 break; 943 944 case IEEE80211_S_AUTH: 945 iwi_auth_and_assoc(sc); 946 break; 947 948 case IEEE80211_S_RUN: 949 if (ic->ic_opmode == IEEE80211_M_IBSS && 950 ic->ic_state == IEEE80211_S_SCAN) 951 iwi_auth_and_assoc(sc); 952 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 953 iwi_set_chan(sc, ic->ic_ibss_chan); 954 break; 955 case IEEE80211_S_ASSOC: 956 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 957 if (ic->ic_state == IEEE80211_S_AUTH) 958 break; 959 iwi_auth_and_assoc(sc); 960 break; 961 962 case IEEE80211_S_INIT: 963 sc->flags &= ~IWI_FLAG_SCANNING; 964 break; 965 } 966 967 return sc->sc_newstate(ic, nstate, arg); 968 } 969 970 /* 971 * WME parameters coming from IEEE 802.11e specification. These values are 972 * already declared in ieee80211_proto.c, but they are static so they can't 973 * be reused here. 974 */ 975 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 976 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 977 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 978 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 979 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 980 }; 981 982 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 983 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 984 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 985 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 986 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 987 }; 988 989 static int 990 iwi_wme_update(struct ieee80211com *ic) 991 { 992 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 993 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 994 struct iwi_softc *sc = ic->ic_ifp->if_softc; 995 struct iwi_wme_params wme[3]; 996 const struct wmeParams *wmep; 997 int ac; 998 999 /* 1000 * We shall not override firmware default WME values if WME is not 1001 * actually enabled. 1002 */ 1003 if (!(ic->ic_flags & IEEE80211_F_WME)) 1004 return 0; 1005 1006 for (ac = 0; ac < WME_NUM_AC; ac++) { 1007 /* set WME values for current operating mode */ 1008 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1009 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1010 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1011 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1012 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1013 wme[0].acm[ac] = wmep->wmep_acm; 1014 1015 /* set WME values for CCK modulation */ 1016 wmep = &iwi_wme_cck_params[ac]; 1017 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1018 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1019 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1020 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1021 wme[1].acm[ac] = wmep->wmep_acm; 1022 1023 /* set WME values for OFDM modulation */ 1024 wmep = &iwi_wme_ofdm_params[ac]; 1025 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1026 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1027 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1028 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1029 wme[2].acm[ac] = wmep->wmep_acm; 1030 } 1031 1032 DPRINTF(("Setting WME parameters\n")); 1033 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1034 #undef IWI_USEC 1035 #undef IWI_EXP2 1036 } 1037 1038 /* 1039 * Read 16 bits at address 'addr' from the serial EEPROM. 1040 */ 1041 static uint16_t 1042 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1043 { 1044 uint32_t tmp; 1045 uint16_t val; 1046 int n; 1047 1048 /* Clock C once before the first command */ 1049 IWI_EEPROM_CTL(sc, 0); 1050 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1053 1054 /* Write start bit (1) */ 1055 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1056 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1057 1058 /* Write READ opcode (10) */ 1059 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1061 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1063 1064 /* Write address A7-A0 */ 1065 for (n = 7; n >= 0; n--) { 1066 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1067 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1068 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1069 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1070 } 1071 1072 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1073 1074 /* Read data Q15-Q0 */ 1075 val = 0; 1076 for (n = 15; n >= 0; n--) { 1077 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1078 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1079 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1080 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1081 } 1082 1083 IWI_EEPROM_CTL(sc, 0); 1084 1085 /* Clear Chip Select and clock C */ 1086 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1087 IWI_EEPROM_CTL(sc, 0); 1088 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1089 1090 return val; 1091 } 1092 1093 /* 1094 * XXX: Hack to set the current channel to the value advertised in beacons or 1095 * probe responses. Only used during AP detection. 1096 */ 1097 static void 1098 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1099 { 1100 struct ieee80211_frame *wh; 1101 uint8_t subtype; 1102 uint8_t *frm, *efrm; 1103 1104 wh = mtod(m, struct ieee80211_frame *); 1105 1106 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1107 return; 1108 1109 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1110 1111 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1112 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1113 return; 1114 1115 frm = (uint8_t *)(wh + 1); 1116 efrm = mtod(m, uint8_t *) + m->m_len; 1117 1118 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1119 while (frm + 2 < efrm) { 1120 if (*frm == IEEE80211_ELEMID_DSPARMS) { 1121 #if IEEE80211_CHAN_MAX < 255 1122 if (frm[2] <= IEEE80211_CHAN_MAX) 1123 #endif 1124 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1125 } 1126 1127 frm += frm[1] + 2; 1128 } 1129 } 1130 1131 static struct mbuf * 1132 iwi_alloc_rx_buf(struct iwi_softc *sc) 1133 { 1134 struct mbuf *m; 1135 1136 MGETHDR(m, M_DONTWAIT, MT_DATA); 1137 if (m == NULL) { 1138 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1139 return NULL; 1140 } 1141 1142 MCLGET(m, M_DONTWAIT); 1143 if (!(m->m_flags & M_EXT)) { 1144 aprint_error_dev(sc->sc_dev, 1145 "could not allocate rx mbuf cluster\n"); 1146 m_freem(m); 1147 return NULL; 1148 } 1149 1150 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1151 return m; 1152 } 1153 1154 static void 1155 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1156 struct iwi_frame *frame) 1157 { 1158 struct ieee80211com *ic = &sc->sc_ic; 1159 struct ifnet *ifp = ic->ic_ifp; 1160 struct mbuf *m, *m_new; 1161 struct ieee80211_frame *wh; 1162 struct ieee80211_node *ni; 1163 int error, s; 1164 1165 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1166 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1167 1168 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1169 le16toh(frame->len) > MCLBYTES) { 1170 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1171 if_statinc(ifp, if_ierrors); 1172 return; 1173 } 1174 1175 /* 1176 * Try to allocate a new mbuf for this ring element and 1177 * load it before processing the current mbuf. If the ring 1178 * element cannot be reloaded, drop the received packet 1179 * and reuse the old mbuf. In the unlikely case that 1180 * the old mbuf can't be reloaded either, explicitly panic. 1181 * 1182 * XXX Reorganize buffer by moving elements from the logical 1183 * end of the ring to the front instead of dropping. 1184 */ 1185 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1186 if_statinc(ifp, if_ierrors); 1187 return; 1188 } 1189 1190 bus_dmamap_unload(sc->sc_dmat, data->map); 1191 1192 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1193 BUS_DMA_READ | BUS_DMA_NOWAIT); 1194 if (error != 0) { 1195 aprint_error_dev(sc->sc_dev, 1196 "could not load rx buf DMA map\n"); 1197 m_freem(m_new); 1198 if_statinc(ifp, if_ierrors); 1199 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1200 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1201 if (error) 1202 panic("%s: unable to remap rx buf", 1203 device_xname(sc->sc_dev)); 1204 return; 1205 } 1206 1207 /* 1208 * New mbuf successfully loaded, update RX ring and continue 1209 * processing. 1210 */ 1211 m = data->m; 1212 data->m = m_new; 1213 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1214 1215 /* Finalize mbuf */ 1216 m_set_rcvif(m, ifp); 1217 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1218 sizeof (struct iwi_frame) + le16toh(frame->len); 1219 1220 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1221 1222 s = splnet(); 1223 1224 if (ic->ic_state == IEEE80211_S_SCAN) 1225 iwi_fix_channel(ic, m); 1226 1227 if (sc->sc_drvbpf != NULL) { 1228 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1229 1230 tap->wr_flags = 0; 1231 tap->wr_rate = iwi_cvtrate(frame->rate); 1232 tap->wr_chan_freq = 1233 htole16(ic->ic_channels[frame->chan].ic_freq); 1234 tap->wr_chan_flags = 1235 htole16(ic->ic_channels[frame->chan].ic_flags); 1236 tap->wr_antsignal = frame->signal; 1237 tap->wr_antenna = frame->antenna; 1238 1239 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1240 } 1241 wh = mtod(m, struct ieee80211_frame *); 1242 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1243 1244 /* Send the frame to the upper layer */ 1245 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1246 1247 /* node is no longer needed */ 1248 ieee80211_free_node(ni); 1249 1250 splx(s); 1251 } 1252 1253 static void 1254 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1255 { 1256 struct ieee80211com *ic = &sc->sc_ic; 1257 struct iwi_notif_authentication *auth; 1258 struct iwi_notif_association *assoc; 1259 struct iwi_notif_beacon_state *beacon; 1260 int s; 1261 1262 switch (notif->type) { 1263 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1264 #ifdef IWI_DEBUG 1265 { 1266 struct iwi_notif_scan_channel *chan = 1267 (struct iwi_notif_scan_channel *)(notif + 1); 1268 1269 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1270 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1271 } 1272 #endif 1273 break; 1274 1275 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1276 #ifdef IWI_DEBUG 1277 { 1278 struct iwi_notif_scan_complete *scan = 1279 (struct iwi_notif_scan_complete *)(notif + 1); 1280 1281 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1282 scan->status)); 1283 } 1284 #endif 1285 1286 /* monitor mode uses scan to set the channel ... */ 1287 s = splnet(); 1288 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1289 sc->flags &= ~IWI_FLAG_SCANNING; 1290 ieee80211_end_scan(ic); 1291 } else 1292 iwi_set_chan(sc, ic->ic_ibss_chan); 1293 splx(s); 1294 break; 1295 1296 case IWI_NOTIF_TYPE_AUTHENTICATION: 1297 auth = (struct iwi_notif_authentication *)(notif + 1); 1298 1299 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1300 1301 switch (auth->state) { 1302 case IWI_AUTH_SUCCESS: 1303 s = splnet(); 1304 ieee80211_node_authorize(ic->ic_bss); 1305 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1306 splx(s); 1307 break; 1308 1309 case IWI_AUTH_FAIL: 1310 break; 1311 1312 case IWI_AUTH_SENT_1: 1313 case IWI_AUTH_RECV_2: 1314 case IWI_AUTH_SEQ1_PASS: 1315 break; 1316 1317 case IWI_AUTH_SEQ1_FAIL: 1318 break; 1319 1320 default: 1321 aprint_error_dev(sc->sc_dev, 1322 "unknown authentication state %u\n", auth->state); 1323 } 1324 break; 1325 1326 case IWI_NOTIF_TYPE_ASSOCIATION: 1327 assoc = (struct iwi_notif_association *)(notif + 1); 1328 1329 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1330 assoc->status)); 1331 1332 switch (assoc->state) { 1333 case IWI_AUTH_SUCCESS: 1334 /* re-association, do nothing */ 1335 break; 1336 1337 case IWI_ASSOC_SUCCESS: 1338 s = splnet(); 1339 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1340 splx(s); 1341 break; 1342 1343 case IWI_ASSOC_FAIL: 1344 s = splnet(); 1345 ieee80211_begin_scan(ic, 1); 1346 splx(s); 1347 break; 1348 1349 default: 1350 aprint_error_dev(sc->sc_dev, 1351 "unknown association state %u\n", assoc->state); 1352 } 1353 break; 1354 1355 case IWI_NOTIF_TYPE_BEACON: 1356 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1357 1358 if (beacon->state == IWI_BEACON_MISS) { 1359 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1360 device_xname(sc->sc_dev), le32toh(beacon->number))); 1361 } 1362 break; 1363 1364 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1365 case IWI_NOTIF_TYPE_LINK_QUALITY: 1366 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1367 case IWI_NOTIF_TYPE_CALIBRATION: 1368 case IWI_NOTIF_TYPE_NOISE: 1369 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1370 break; 1371 1372 default: 1373 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1374 device_xname(sc->sc_dev), notif->type, notif->flags, 1375 le16toh(notif->len))); 1376 } 1377 } 1378 1379 static void 1380 iwi_cmd_intr(struct iwi_softc *sc) 1381 { 1382 1383 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1384 1385 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1386 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1387 BUS_DMASYNC_POSTWRITE); 1388 1389 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1390 1391 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1392 1393 if (--sc->cmdq.queued > 0) { 1394 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1395 (sc->cmdq.next + 1) % sc->cmdq.count); 1396 } 1397 } 1398 1399 static void 1400 iwi_rx_intr(struct iwi_softc *sc) 1401 { 1402 struct iwi_rx_data *data; 1403 struct iwi_hdr *hdr; 1404 uint32_t hw; 1405 1406 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1407 1408 for (; sc->rxq.cur != hw;) { 1409 data = &sc->rxq.data[sc->rxq.cur]; 1410 1411 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1412 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1413 1414 hdr = mtod(data->m, struct iwi_hdr *); 1415 1416 switch (hdr->type) { 1417 case IWI_HDR_TYPE_FRAME: 1418 iwi_frame_intr(sc, data, sc->rxq.cur, 1419 (struct iwi_frame *)(hdr + 1)); 1420 break; 1421 1422 case IWI_HDR_TYPE_NOTIF: 1423 iwi_notification_intr(sc, 1424 (struct iwi_notif *)(hdr + 1)); 1425 break; 1426 1427 default: 1428 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1429 hdr->type); 1430 } 1431 1432 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1433 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1434 1435 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1436 1437 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1438 } 1439 1440 /* Tell the firmware what we have processed */ 1441 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1442 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1443 } 1444 1445 static void 1446 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1447 { 1448 struct ifnet *ifp = &sc->sc_if; 1449 struct iwi_tx_data *data; 1450 uint32_t hw; 1451 int s; 1452 1453 s = splnet(); 1454 1455 hw = CSR_READ_4(sc, txq->csr_ridx); 1456 1457 for (; txq->next != hw;) { 1458 data = &txq->data[txq->next]; 1459 1460 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1461 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1462 bus_dmamap_unload(sc->sc_dmat, data->map); 1463 m_freem(data->m); 1464 data->m = NULL; 1465 ieee80211_free_node(data->ni); 1466 data->ni = NULL; 1467 1468 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1469 1470 if_statinc(ifp, if_opackets); 1471 1472 txq->queued--; 1473 txq->next = (txq->next + 1) % txq->count; 1474 } 1475 1476 sc->sc_tx_timer = 0; 1477 1478 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1479 ifp->if_flags &= ~IFF_OACTIVE; 1480 1481 /* Call start() since some buffer descriptors have been released */ 1482 iwi_start(ifp); /* in softint */ 1483 } 1484 1485 splx(s); 1486 } 1487 1488 static int 1489 iwi_intr(void *arg) 1490 { 1491 struct iwi_softc *sc = arg; 1492 uint32_t r; 1493 1494 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1495 return 0; 1496 1497 /* Disable interrupts */ 1498 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1499 1500 softint_schedule(sc->sc_soft_ih); 1501 return 1; 1502 } 1503 1504 static void 1505 iwi_softintr(void *arg) 1506 { 1507 struct iwi_softc *sc = arg; 1508 uint32_t r; 1509 int s; 1510 1511 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1512 goto out; 1513 1514 /* Acknowledge interrupts */ 1515 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1516 1517 if (r & IWI_INTR_FATAL_ERROR) { 1518 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1519 s = splnet(); 1520 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1521 iwi_stop(&sc->sc_if, 1); 1522 splx(s); 1523 return; 1524 } 1525 1526 if (r & IWI_INTR_FW_INITED) { 1527 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1528 wakeup(sc); 1529 } 1530 1531 if (r & IWI_INTR_RADIO_OFF) { 1532 DPRINTF(("radio transmitter off\n")); 1533 s = splnet(); 1534 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1535 iwi_stop(&sc->sc_if, 1); 1536 splx(s); 1537 return; 1538 } 1539 1540 if (r & IWI_INTR_CMD_DONE) 1541 iwi_cmd_intr(sc); 1542 1543 if (r & IWI_INTR_TX1_DONE) 1544 iwi_tx_intr(sc, &sc->txq[0]); 1545 1546 if (r & IWI_INTR_TX2_DONE) 1547 iwi_tx_intr(sc, &sc->txq[1]); 1548 1549 if (r & IWI_INTR_TX3_DONE) 1550 iwi_tx_intr(sc, &sc->txq[2]); 1551 1552 if (r & IWI_INTR_TX4_DONE) 1553 iwi_tx_intr(sc, &sc->txq[3]); 1554 1555 if (r & IWI_INTR_RX_DONE) 1556 iwi_rx_intr(sc); 1557 1558 if (r & IWI_INTR_PARITY_ERROR) 1559 aprint_error_dev(sc->sc_dev, "parity error\n"); 1560 1561 out: 1562 /* Re-enable interrupts */ 1563 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1564 } 1565 1566 static int 1567 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1568 int async) 1569 { 1570 struct iwi_cmd_desc *desc; 1571 1572 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1573 1574 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1575 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1576 desc->type = type; 1577 desc->len = len; 1578 memcpy(desc->data, data, len); 1579 1580 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1581 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1582 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1583 1584 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1585 sc->cmdq.cur, type, len, async)); 1586 1587 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1588 1589 if (++sc->cmdq.queued == 1) 1590 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1591 1592 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1593 } 1594 1595 static void 1596 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1597 { 1598 struct iwi_ibssnode node; 1599 1600 /* write node information into NIC memory */ 1601 memset(&node, 0, sizeof node); 1602 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1603 1604 CSR_WRITE_REGION_1(sc, 1605 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1606 (uint8_t *)&node, sizeof node); 1607 } 1608 1609 static int 1610 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1611 int ac) 1612 { 1613 struct iwi_softc *sc = ifp->if_softc; 1614 struct ieee80211com *ic = &sc->sc_ic; 1615 struct iwi_node *in = (struct iwi_node *)ni; 1616 struct ieee80211_frame *wh; 1617 struct ieee80211_key *k; 1618 const struct chanAccParams *cap; 1619 struct iwi_tx_ring *txq = &sc->txq[ac]; 1620 struct iwi_tx_data *data; 1621 struct iwi_tx_desc *desc; 1622 struct mbuf *mnew; 1623 int error, hdrlen, i, noack = 0; 1624 1625 wh = mtod(m0, struct ieee80211_frame *); 1626 1627 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1628 hdrlen = sizeof (struct ieee80211_qosframe); 1629 cap = &ic->ic_wme.wme_chanParams; 1630 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1631 } else 1632 hdrlen = sizeof (struct ieee80211_frame); 1633 1634 /* 1635 * This is only used in IBSS mode where the firmware expect an index 1636 * in a h/w table instead of a destination address. 1637 */ 1638 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1639 in->in_station = iwi_alloc_unr(sc); 1640 1641 if (in->in_station == -1) { /* h/w table is full */ 1642 m_freem(m0); 1643 ieee80211_free_node(ni); 1644 if_statinc(ifp, if_oerrors); 1645 return 0; 1646 } 1647 iwi_write_ibssnode(sc, in); 1648 } 1649 1650 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1651 k = ieee80211_crypto_encap(ic, ni, m0); 1652 if (k == NULL) { 1653 m_freem(m0); 1654 return ENOBUFS; 1655 } 1656 1657 /* packet header may have moved, reset our local pointer */ 1658 wh = mtod(m0, struct ieee80211_frame *); 1659 } 1660 1661 if (sc->sc_drvbpf != NULL) { 1662 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1663 1664 tap->wt_flags = 0; 1665 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1666 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1667 1668 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0, BPF_D_OUT); 1669 } 1670 1671 data = &txq->data[txq->cur]; 1672 desc = &txq->desc[txq->cur]; 1673 1674 /* save and trim IEEE802.11 header */ 1675 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1676 m_adj(m0, hdrlen); 1677 1678 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1679 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1680 if (error != 0 && error != EFBIG) { 1681 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1682 error); 1683 m_freem(m0); 1684 return error; 1685 } 1686 if (error != 0) { 1687 /* too many fragments, linearize */ 1688 1689 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1690 if (mnew == NULL) { 1691 m_freem(m0); 1692 return ENOMEM; 1693 } 1694 1695 m_copy_pkthdr(mnew, m0); 1696 1697 /* If the data won't fit in the header, get a cluster */ 1698 if (m0->m_pkthdr.len > MHLEN) { 1699 MCLGET(mnew, M_DONTWAIT); 1700 if (!(mnew->m_flags & M_EXT)) { 1701 m_freem(m0); 1702 m_freem(mnew); 1703 return ENOMEM; 1704 } 1705 } 1706 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1707 m_freem(m0); 1708 mnew->m_len = mnew->m_pkthdr.len; 1709 m0 = mnew; 1710 1711 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1712 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1713 if (error != 0) { 1714 aprint_error_dev(sc->sc_dev, 1715 "could not map mbuf (error %d)\n", error); 1716 m_freem(m0); 1717 return error; 1718 } 1719 } 1720 1721 data->m = m0; 1722 data->ni = ni; 1723 1724 desc->hdr.type = IWI_HDR_TYPE_DATA; 1725 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1726 desc->station = 1727 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1728 desc->cmd = IWI_DATA_CMD_TX; 1729 desc->len = htole16(m0->m_pkthdr.len); 1730 desc->flags = 0; 1731 desc->xflags = 0; 1732 1733 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1734 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1735 1736 #if 0 1737 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1738 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1739 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1740 } else 1741 #endif 1742 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1743 1744 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1745 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1746 1747 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1748 desc->xflags |= IWI_DATA_XFLAG_QOS; 1749 1750 if (ic->ic_curmode == IEEE80211_MODE_11B) 1751 desc->xflags |= IWI_DATA_XFLAG_CCK; 1752 1753 desc->nseg = htole32(data->map->dm_nsegs); 1754 for (i = 0; i < data->map->dm_nsegs; i++) { 1755 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1756 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1757 } 1758 1759 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1760 txq->cur * IWI_TX_DESC_SIZE, 1761 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1762 1763 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1764 BUS_DMASYNC_PREWRITE); 1765 1766 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1767 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1768 1769 /* Inform firmware about this new packet */ 1770 txq->queued++; 1771 txq->cur = (txq->cur + 1) % txq->count; 1772 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1773 1774 return 0; 1775 } 1776 1777 static void 1778 iwi_start(struct ifnet *ifp) 1779 { 1780 struct iwi_softc *sc = ifp->if_softc; 1781 struct ieee80211com *ic = &sc->sc_ic; 1782 struct mbuf *m0; 1783 struct ether_header *eh; 1784 struct ieee80211_node *ni; 1785 int ac; 1786 1787 if (ic->ic_state != IEEE80211_S_RUN) 1788 return; 1789 1790 for (;;) { 1791 IFQ_DEQUEUE(&ifp->if_snd, m0); 1792 if (m0 == NULL) 1793 break; 1794 1795 if (m0->m_len < sizeof (struct ether_header) && 1796 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1797 if_statinc(ifp, if_oerrors); 1798 continue; 1799 } 1800 1801 eh = mtod(m0, struct ether_header *); 1802 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1803 if (ni == NULL) { 1804 m_freem(m0); 1805 if_statinc(ifp, if_oerrors); 1806 continue; 1807 } 1808 1809 /* classify mbuf so we can find which tx ring to use */ 1810 if (ieee80211_classify(ic, m0, ni) != 0) { 1811 m_freem(m0); 1812 ieee80211_free_node(ni); 1813 if_statinc(ifp, if_oerrors); 1814 continue; 1815 } 1816 1817 /* no QoS encapsulation for EAPOL frames */ 1818 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1819 M_WME_GETAC(m0) : WME_AC_BE; 1820 1821 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1822 /* there is no place left in this ring */ 1823 IFQ_LOCK(&ifp->if_snd); 1824 IF_PREPEND(&ifp->if_snd, m0); 1825 IFQ_UNLOCK(&ifp->if_snd); 1826 ifp->if_flags |= IFF_OACTIVE; 1827 break; 1828 } 1829 1830 bpf_mtap(ifp, m0, BPF_D_OUT); 1831 1832 m0 = ieee80211_encap(ic, m0, ni); 1833 if (m0 == NULL) { 1834 ieee80211_free_node(ni); 1835 if_statinc(ifp, if_oerrors); 1836 continue; 1837 } 1838 1839 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 1840 1841 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1842 ieee80211_free_node(ni); 1843 if_statinc(ifp, if_oerrors); 1844 break; 1845 } 1846 1847 /* start watchdog timer */ 1848 sc->sc_tx_timer = 5; 1849 ifp->if_timer = 1; 1850 } 1851 } 1852 1853 static void 1854 iwi_watchdog(struct ifnet *ifp) 1855 { 1856 struct iwi_softc *sc = ifp->if_softc; 1857 1858 ifp->if_timer = 0; 1859 1860 if (sc->sc_tx_timer > 0) { 1861 if (--sc->sc_tx_timer == 0) { 1862 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1863 if_statinc(ifp, if_oerrors); 1864 ifp->if_flags &= ~IFF_UP; 1865 iwi_stop(ifp, 1); 1866 return; 1867 } 1868 ifp->if_timer = 1; 1869 } 1870 1871 ieee80211_watchdog(&sc->sc_ic); 1872 } 1873 1874 static int 1875 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1876 { 1877 uint32_t size, buf[128]; 1878 1879 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1880 memset(buf, 0, sizeof buf); 1881 return copyout(buf, tbl, sizeof buf); 1882 } 1883 1884 size = uimin(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1885 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1886 1887 return copyout(buf, tbl, sizeof buf); 1888 } 1889 1890 static int 1891 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1892 { 1893 #define IS_RUNNING(ifp) \ 1894 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1895 1896 struct iwi_softc *sc = ifp->if_softc; 1897 struct ieee80211com *ic = &sc->sc_ic; 1898 struct ifreq *ifr = (struct ifreq *)data; 1899 int s, error = 0; 1900 int val; 1901 1902 s = splnet(); 1903 1904 switch (cmd) { 1905 case SIOCSIFFLAGS: 1906 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1907 break; 1908 if (ifp->if_flags & IFF_UP) { 1909 if (!(ifp->if_flags & IFF_RUNNING)) 1910 iwi_init(ifp); 1911 } else { 1912 if (ifp->if_flags & IFF_RUNNING) 1913 iwi_stop(ifp, 1); 1914 } 1915 break; 1916 1917 case SIOCADDMULTI: 1918 case SIOCDELMULTI: 1919 /* XXX no h/w multicast filter? --dyoung */ 1920 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1921 /* setup multicast filter, etc */ 1922 error = 0; 1923 } 1924 break; 1925 1926 case SIOCGTABLE0: 1927 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1928 break; 1929 1930 case SIOCGRADIO: 1931 val = !iwi_getrfkill(sc); 1932 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1933 break; 1934 1935 case SIOCSIFMEDIA: 1936 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1937 sc->sc_fwname = "ipw2200-ibss.fw"; 1938 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1939 sc->sc_fwname = "ipw2200-sniffer.fw"; 1940 } else { 1941 sc->sc_fwname = "ipw2200-bss.fw"; 1942 } 1943 error = iwi_cache_firmware(sc); 1944 if (error) 1945 break; 1946 1947 /* FALLTHROUGH */ 1948 default: 1949 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1950 1951 if (error == ENETRESET) { 1952 if (IS_RUNNING(ifp) && 1953 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1954 iwi_init(ifp); 1955 error = 0; 1956 } 1957 } 1958 1959 splx(s); 1960 return error; 1961 #undef IS_RUNNING 1962 } 1963 1964 static void 1965 iwi_stop_master(struct iwi_softc *sc) 1966 { 1967 int ntries; 1968 1969 /* Disable interrupts */ 1970 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1971 1972 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1973 for (ntries = 0; ntries < 5; ntries++) { 1974 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1975 break; 1976 DELAY(10); 1977 } 1978 if (ntries == 5) 1979 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1980 1981 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1982 IWI_RST_PRINCETON_RESET); 1983 1984 sc->flags &= ~IWI_FLAG_FW_INITED; 1985 } 1986 1987 static int 1988 iwi_reset(struct iwi_softc *sc) 1989 { 1990 int i, ntries; 1991 1992 iwi_stop_master(sc); 1993 1994 /* Move adapter to D0 state */ 1995 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1996 IWI_CTL_INIT); 1997 1998 /* Initialize Phase-Locked Level (PLL) */ 1999 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2000 2001 /* Wait for clock stabilization */ 2002 for (ntries = 0; ntries < 1000; ntries++) { 2003 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2004 break; 2005 DELAY(200); 2006 } 2007 if (ntries == 1000) { 2008 aprint_error_dev(sc->sc_dev, 2009 "timeout waiting for clock stabilization\n"); 2010 return ETIMEDOUT; 2011 } 2012 2013 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2014 IWI_RST_SW_RESET); 2015 2016 DELAY(10); 2017 2018 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2019 IWI_CTL_INIT); 2020 2021 /* Clear NIC memory */ 2022 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2023 for (i = 0; i < 0xc000; i++) 2024 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2025 2026 return 0; 2027 } 2028 2029 static int 2030 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2031 { 2032 uint16_t *w; 2033 int ntries, i; 2034 2035 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2036 IWI_RST_STOP_MASTER); 2037 for (ntries = 0; ntries < 5; ntries++) { 2038 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2039 break; 2040 DELAY(10); 2041 } 2042 if (ntries == 5) { 2043 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2044 return ETIMEDOUT; 2045 } 2046 2047 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2048 DELAY(5000); 2049 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2050 ~IWI_RST_PRINCETON_RESET); 2051 DELAY(5000); 2052 MEM_WRITE_4(sc, 0x3000e0, 0); 2053 DELAY(1000); 2054 MEM_WRITE_4(sc, 0x300004, 1); 2055 DELAY(1000); 2056 MEM_WRITE_4(sc, 0x300004, 0); 2057 DELAY(1000); 2058 MEM_WRITE_1(sc, 0x200000, 0x00); 2059 MEM_WRITE_1(sc, 0x200000, 0x40); 2060 DELAY(1000); 2061 2062 /* Adapter is buggy, we must set the address for each word */ 2063 for (w = uc; size > 0; w++, size -= 2) 2064 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2065 2066 MEM_WRITE_1(sc, 0x200000, 0x00); 2067 MEM_WRITE_1(sc, 0x200000, 0x80); 2068 2069 /* Wait until we get a response in the uc queue */ 2070 for (ntries = 0; ntries < 100; ntries++) { 2071 if (MEM_READ_1(sc, 0x200000) & 1) 2072 break; 2073 DELAY(100); 2074 } 2075 if (ntries == 100) { 2076 aprint_error_dev(sc->sc_dev, 2077 "timeout waiting for ucode to initialize\n"); 2078 return ETIMEDOUT; 2079 } 2080 2081 /* Empty the uc queue or the firmware will not initialize properly */ 2082 for (i = 0; i < 7; i++) 2083 MEM_READ_4(sc, 0x200004); 2084 2085 MEM_WRITE_1(sc, 0x200000, 0x00); 2086 2087 return 0; 2088 } 2089 2090 /* macro to handle unaligned little endian data in firmware image */ 2091 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2092 static int 2093 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2094 { 2095 bus_dmamap_t map; 2096 u_char *p, *end; 2097 uint32_t sentinel, ctl, sum; 2098 uint32_t cs, sl, cd, cl; 2099 int ntries, nsegs, error; 2100 int sn; 2101 2102 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2103 2104 /* Create a DMA map for the firmware image */ 2105 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2106 BUS_DMA_NOWAIT, &map); 2107 if (error != 0) { 2108 aprint_error_dev(sc->sc_dev, 2109 "could not create firmware DMA map\n"); 2110 map = NULL; 2111 goto fail1; 2112 } 2113 2114 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2115 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2116 if (error != 0) { 2117 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2118 error); 2119 goto fail2; 2120 } 2121 2122 /* Make sure the adapter will get up-to-date values */ 2123 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2124 2125 /* Tell the adapter where the command blocks are stored */ 2126 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2127 2128 /* 2129 * Store command blocks into adapter's internal memory using register 2130 * indirections. The adapter will read the firmware image through DMA 2131 * using information stored in command blocks. 2132 */ 2133 p = fw; 2134 end = p + size; 2135 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2136 2137 sn = 0; 2138 sl = cl = 0; 2139 cs = cd = 0; 2140 while (p < end) { 2141 if (sl == 0) { 2142 cs = map->dm_segs[sn].ds_addr; 2143 sl = map->dm_segs[sn].ds_len; 2144 sn++; 2145 } 2146 if (cl == 0) { 2147 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2148 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2149 } 2150 while (sl > 0 && cl > 0) { 2151 int len = uimin(cl, sl); 2152 2153 sl -= len; 2154 cl -= len; 2155 p += len; 2156 2157 while (len > 0) { 2158 int mlen = uimin(len, IWI_CB_MAXDATALEN); 2159 2160 ctl = IWI_CB_DEFAULT_CTL | mlen; 2161 sum = ctl ^ cs ^ cd; 2162 2163 /* Write a command block */ 2164 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2165 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2166 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2167 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2168 2169 cs += mlen; 2170 cd += mlen; 2171 len -= mlen; 2172 } 2173 } 2174 } 2175 2176 /* Write a fictive final command block (sentinel) */ 2177 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2178 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2179 2180 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2181 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2182 2183 /* Tell the adapter to start processing command blocks */ 2184 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2185 2186 /* Wait until the adapter has processed all command blocks */ 2187 for (ntries = 0; ntries < 400; ntries++) { 2188 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2189 break; 2190 DELAY(100); 2191 } 2192 if (ntries == 400) { 2193 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2194 error = ETIMEDOUT; 2195 goto fail3; 2196 } 2197 2198 /* We're done with command blocks processing */ 2199 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2200 2201 /* Allow interrupts so we know when the firmware is inited */ 2202 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2203 2204 /* Tell the adapter to initialize the firmware */ 2205 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2206 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2207 IWI_CTL_ALLOW_STANDBY); 2208 2209 /* Wait at most one second for firmware initialization to complete */ 2210 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2211 aprint_error_dev(sc->sc_dev, 2212 "timeout waiting for firmware initialization to complete\n"); 2213 goto fail3; 2214 } 2215 2216 fail3: 2217 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2218 bus_dmamap_unload(sc->sc_dmat, map); 2219 fail2: 2220 if (map != NULL) 2221 bus_dmamap_destroy(sc->sc_dmat, map); 2222 2223 fail1: 2224 return error; 2225 } 2226 2227 /* 2228 * Store firmware into kernel memory so we can download it when we need to, 2229 * e.g when the adapter wakes up from suspend mode. 2230 */ 2231 static int 2232 iwi_cache_firmware(struct iwi_softc *sc) 2233 { 2234 struct iwi_firmware *kfw = &sc->fw; 2235 firmware_handle_t fwh; 2236 struct iwi_firmware_hdr *hdr; 2237 off_t size; 2238 char *fw; 2239 int error; 2240 2241 if (iwi_accept_eula == 0) { 2242 aprint_error_dev(sc->sc_dev, 2243 "EULA not accepted; please see the iwi(4) man page.\n"); 2244 return EPERM; 2245 } 2246 2247 iwi_free_firmware(sc); 2248 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2249 if (error != 0) { 2250 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2251 goto fail1; 2252 } 2253 2254 size = firmware_get_size(fwh); 2255 if (size < sizeof(struct iwi_firmware_hdr)) { 2256 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2257 sc->sc_fwname); 2258 error = EIO; 2259 goto fail1; 2260 } 2261 sc->sc_blobsize = size; 2262 2263 sc->sc_blob = firmware_malloc(size); 2264 if (sc->sc_blob == NULL) { 2265 error = ENOMEM; 2266 firmware_close(fwh); 2267 goto fail1; 2268 } 2269 2270 error = firmware_read(fwh, 0, sc->sc_blob, size); 2271 firmware_close(fwh); 2272 if (error != 0) 2273 goto fail2; 2274 2275 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2276 hdr->version = le32toh(hdr->version); 2277 hdr->bsize = le32toh(hdr->bsize); 2278 hdr->usize = le32toh(hdr->usize); 2279 hdr->fsize = le32toh(hdr->fsize); 2280 2281 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2282 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2283 sc->sc_fwname); 2284 error = EIO; 2285 goto fail2; 2286 } 2287 2288 DPRINTF(("firmware version = %d\n", hdr->version)); 2289 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2290 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2291 aprint_error_dev(sc->sc_dev, 2292 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2293 IWI_FW_GET_MAJOR(hdr->version), 2294 IWI_FW_GET_MINOR(hdr->version), 2295 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2296 error = EIO; 2297 goto fail2; 2298 } 2299 2300 kfw->boot_size = hdr->bsize; 2301 kfw->ucode_size = hdr->usize; 2302 kfw->main_size = hdr->fsize; 2303 2304 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2305 kfw->boot = fw; 2306 fw += kfw->boot_size; 2307 kfw->ucode = fw; 2308 fw += kfw->ucode_size; 2309 kfw->main = fw; 2310 2311 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2312 kfw->boot, kfw->ucode, kfw->main)); 2313 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2314 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2315 2316 sc->flags |= IWI_FLAG_FW_CACHED; 2317 2318 return 0; 2319 2320 2321 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2322 fail1: 2323 return error; 2324 } 2325 2326 static void 2327 iwi_free_firmware(struct iwi_softc *sc) 2328 { 2329 2330 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2331 return; 2332 2333 firmware_free(sc->sc_blob, sc->sc_blobsize); 2334 2335 sc->flags &= ~IWI_FLAG_FW_CACHED; 2336 } 2337 2338 static int 2339 iwi_config(struct iwi_softc *sc) 2340 { 2341 struct ieee80211com *ic = &sc->sc_ic; 2342 struct ifnet *ifp = &sc->sc_if; 2343 struct iwi_configuration config; 2344 struct iwi_rateset rs; 2345 struct iwi_txpower power; 2346 struct ieee80211_key *wk; 2347 struct iwi_wep_key wepkey; 2348 uint32_t data; 2349 int error, nchan, i; 2350 2351 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2352 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2353 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2354 IEEE80211_ADDR_LEN, 0); 2355 if (error != 0) 2356 return error; 2357 2358 memset(&config, 0, sizeof config); 2359 config.bluetooth_coexistence = sc->bluetooth; 2360 config.antenna = sc->antenna; 2361 config.silence_threshold = 0x1e; 2362 config.multicast_enabled = 1; 2363 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2364 config.disable_unicast_decryption = 1; 2365 config.disable_multicast_decryption = 1; 2366 DPRINTF(("Configuring adapter\n")); 2367 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2368 0); 2369 if (error != 0) 2370 return error; 2371 2372 data = htole32(IWI_POWER_MODE_CAM); 2373 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2374 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2375 if (error != 0) 2376 return error; 2377 2378 data = htole32(ic->ic_rtsthreshold); 2379 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2380 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2381 if (error != 0) 2382 return error; 2383 2384 data = htole32(ic->ic_fragthreshold); 2385 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2386 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2387 if (error != 0) 2388 return error; 2389 2390 /* 2391 * Set default Tx power for 802.11b/g and 802.11a channels. 2392 */ 2393 nchan = 0; 2394 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2395 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2396 continue; 2397 power.chan[nchan].chan = i; 2398 power.chan[nchan].power = IWI_TXPOWER_MAX; 2399 nchan++; 2400 } 2401 power.nchan = nchan; 2402 2403 power.mode = IWI_MODE_11G; 2404 DPRINTF(("Setting .11g channels tx power\n")); 2405 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2406 if (error != 0) 2407 return error; 2408 2409 power.mode = IWI_MODE_11B; 2410 DPRINTF(("Setting .11b channels tx power\n")); 2411 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2412 if (error != 0) 2413 return error; 2414 2415 nchan = 0; 2416 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2417 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2418 continue; 2419 power.chan[nchan].chan = i; 2420 power.chan[nchan].power = IWI_TXPOWER_MAX; 2421 nchan++; 2422 } 2423 power.nchan = nchan; 2424 2425 if (nchan > 0) { /* 2915ABG only */ 2426 power.mode = IWI_MODE_11A; 2427 DPRINTF(("Setting .11a channels tx power\n")); 2428 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2429 0); 2430 if (error != 0) 2431 return error; 2432 } 2433 2434 rs.mode = IWI_MODE_11G; 2435 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2436 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2437 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2438 rs.nrates); 2439 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2440 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2441 if (error != 0) 2442 return error; 2443 2444 rs.mode = IWI_MODE_11A; 2445 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2446 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2447 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2448 rs.nrates); 2449 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2450 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2451 if (error != 0) 2452 return error; 2453 2454 /* if we have a desired ESSID, set it now */ 2455 if (ic->ic_des_esslen != 0) { 2456 #ifdef IWI_DEBUG 2457 if (iwi_debug > 0) { 2458 printf("Setting desired ESSID to "); 2459 ieee80211_print_essid(ic->ic_des_essid, 2460 ic->ic_des_esslen); 2461 printf("\n"); 2462 } 2463 #endif 2464 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2465 ic->ic_des_esslen, 0); 2466 if (error != 0) 2467 return error; 2468 } 2469 2470 cprng_fast(&data, sizeof(data)); 2471 data = htole32(data); 2472 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2473 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2474 if (error != 0) 2475 return error; 2476 2477 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2478 /* XXX iwi_setwepkeys? */ 2479 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2480 wk = &ic->ic_crypto.cs_nw_keys[i]; 2481 2482 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2483 wepkey.idx = i; 2484 wepkey.len = wk->wk_keylen; 2485 memset(wepkey.key, 0, sizeof wepkey.key); 2486 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2487 DPRINTF(("Setting wep key index %u len %u\n", 2488 wepkey.idx, wepkey.len)); 2489 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2490 sizeof wepkey, 0); 2491 if (error != 0) 2492 return error; 2493 } 2494 } 2495 2496 /* Enable adapter */ 2497 DPRINTF(("Enabling adapter\n")); 2498 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2499 } 2500 2501 static int 2502 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2503 { 2504 struct ieee80211com *ic = &sc->sc_ic; 2505 struct iwi_scan_v2 scan; 2506 2507 (void)memset(&scan, 0, sizeof scan); 2508 2509 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2510 scan.channels[0] = 1 | 2511 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2512 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2513 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2514 2515 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2516 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2517 } 2518 2519 static int 2520 iwi_scan(struct iwi_softc *sc) 2521 { 2522 struct ieee80211com *ic = &sc->sc_ic; 2523 struct iwi_scan_v2 scan; 2524 uint32_t type; 2525 uint8_t *p; 2526 int i, count, idx; 2527 2528 (void)memset(&scan, 0, sizeof scan); 2529 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2530 htole16(sc->dwelltime); 2531 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2532 htole16(sc->dwelltime); 2533 2534 /* tell the firmware about the desired essid */ 2535 if (ic->ic_des_esslen) { 2536 int error; 2537 2538 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2539 __func__, ic->ic_des_essid)); 2540 2541 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2542 ic->ic_des_essid, ic->ic_des_esslen, 1); 2543 if (error) 2544 return error; 2545 2546 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2547 } else { 2548 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2549 } 2550 2551 p = &scan.channels[0]; 2552 count = idx = 0; 2553 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2554 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2555 isset(ic->ic_chan_active, i)) { 2556 *++p = i; 2557 count++; 2558 idx++; 2559 iwi_scan_type_set(scan, idx, type); 2560 } 2561 } 2562 if (count) { 2563 *(p - count) = IWI_CHAN_5GHZ | count; 2564 p++; 2565 } 2566 2567 count = 0; 2568 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2569 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2570 isset(ic->ic_chan_active, i)) { 2571 *++p = i; 2572 count++; 2573 idx++; 2574 iwi_scan_type_set(scan, idx, type); 2575 } 2576 } 2577 *(p - count) = IWI_CHAN_2GHZ | count; 2578 2579 DPRINTF(("Start scanning\n")); 2580 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2581 } 2582 2583 static int 2584 iwi_auth_and_assoc(struct iwi_softc *sc) 2585 { 2586 struct ieee80211com *ic = &sc->sc_ic; 2587 struct ieee80211_node *ni = ic->ic_bss; 2588 struct ifnet *ifp = &sc->sc_if; 2589 struct ieee80211_wme_info wme; 2590 struct iwi_configuration config; 2591 struct iwi_associate assoc; 2592 struct iwi_rateset rs; 2593 uint16_t capinfo; 2594 uint32_t data; 2595 int error; 2596 2597 memset(&config, 0, sizeof config); 2598 config.bluetooth_coexistence = sc->bluetooth; 2599 config.antenna = sc->antenna; 2600 config.multicast_enabled = 1; 2601 config.silence_threshold = 0x1e; 2602 if (ic->ic_curmode == IEEE80211_MODE_11G) 2603 config.use_protection = 1; 2604 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2605 config.disable_unicast_decryption = 1; 2606 config.disable_multicast_decryption = 1; 2607 2608 DPRINTF(("Configuring adapter\n")); 2609 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2610 sizeof config, 1); 2611 if (error != 0) 2612 return error; 2613 2614 #ifdef IWI_DEBUG 2615 if (iwi_debug > 0) { 2616 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2617 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2618 aprint_debug("\n"); 2619 } 2620 #endif 2621 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2622 if (error != 0) 2623 return error; 2624 2625 /* the rate set has already been "negotiated" */ 2626 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2627 IWI_MODE_11G; 2628 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2629 rs.nrates = ni->ni_rates.rs_nrates; 2630 2631 if (rs.nrates > IWI_RATESET_SIZE) { 2632 DPRINTF(("Truncating negotiated rate set from %u\n", 2633 rs.nrates)); 2634 rs.nrates = IWI_RATESET_SIZE; 2635 } 2636 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2637 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2638 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2639 if (error != 0) 2640 return error; 2641 2642 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2643 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2644 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2645 wme.wme_oui[0] = 0x00; 2646 wme.wme_oui[1] = 0x50; 2647 wme.wme_oui[2] = 0xf2; 2648 wme.wme_type = WME_OUI_TYPE; 2649 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2650 wme.wme_version = WME_VERSION; 2651 wme.wme_info = 0; 2652 2653 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2654 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2655 if (error != 0) 2656 return error; 2657 } 2658 2659 if (ic->ic_opt_ie != NULL) { 2660 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2661 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2662 ic->ic_opt_ie_len, 1); 2663 if (error != 0) 2664 return error; 2665 } 2666 data = htole32(ni->ni_rssi); 2667 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2668 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2669 if (error != 0) 2670 return error; 2671 2672 memset(&assoc, 0, sizeof assoc); 2673 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2674 assoc.mode = IWI_MODE_11A; 2675 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2676 assoc.mode = IWI_MODE_11G; 2677 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2678 assoc.mode = IWI_MODE_11B; 2679 2680 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2681 2682 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2683 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2684 2685 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2686 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2687 2688 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2689 assoc.policy |= htole16(IWI_POLICY_WME); 2690 if (ic->ic_flags & IEEE80211_F_WPA) 2691 assoc.policy |= htole16(IWI_POLICY_WPA); 2692 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2693 assoc.type = IWI_HC_IBSS_START; 2694 else 2695 assoc.type = IWI_HC_ASSOC; 2696 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2697 2698 if (ic->ic_opmode == IEEE80211_M_IBSS) 2699 capinfo = IEEE80211_CAPINFO_IBSS; 2700 else 2701 capinfo = IEEE80211_CAPINFO_ESS; 2702 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2703 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2704 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2705 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2706 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2707 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2708 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2709 assoc.capinfo = htole16(capinfo); 2710 2711 assoc.lintval = htole16(ic->ic_lintval); 2712 assoc.intval = htole16(ni->ni_intval); 2713 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2714 if (ic->ic_opmode == IEEE80211_M_IBSS) 2715 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2716 else 2717 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2718 2719 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2720 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2721 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2722 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2723 assoc.chan, le16toh(assoc.policy), assoc.auth, 2724 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2725 le16toh(assoc.intval))); 2726 2727 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2728 } 2729 2730 static int 2731 iwi_init(struct ifnet *ifp) 2732 { 2733 struct iwi_softc *sc = ifp->if_softc; 2734 struct ieee80211com *ic = &sc->sc_ic; 2735 struct iwi_firmware *fw = &sc->fw; 2736 int i, error; 2737 2738 /* exit immediately if firmware has not been ioctl'd */ 2739 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2740 if ((error = iwi_cache_firmware(sc)) != 0) { 2741 aprint_error_dev(sc->sc_dev, 2742 "could not cache the firmware\n"); 2743 goto fail; 2744 } 2745 } 2746 2747 iwi_stop(ifp, 0); 2748 2749 if ((error = iwi_reset(sc)) != 0) { 2750 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2751 goto fail; 2752 } 2753 2754 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2755 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2756 goto fail; 2757 } 2758 2759 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2760 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2761 goto fail; 2762 } 2763 2764 iwi_stop_master(sc); 2765 2766 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2767 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2768 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2769 2770 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2771 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2772 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2773 2774 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2775 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2776 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2777 2778 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2779 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2780 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2781 2782 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2783 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2784 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2785 2786 for (i = 0; i < sc->rxq.count; i++) 2787 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2788 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2789 2790 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2791 2792 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2793 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2794 goto fail; 2795 } 2796 2797 sc->flags |= IWI_FLAG_FW_INITED; 2798 2799 if ((error = iwi_config(sc)) != 0) { 2800 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2801 goto fail; 2802 } 2803 2804 ic->ic_state = IEEE80211_S_INIT; 2805 2806 ifp->if_flags &= ~IFF_OACTIVE; 2807 ifp->if_flags |= IFF_RUNNING; 2808 2809 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2810 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2811 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2812 } else 2813 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2814 2815 return 0; 2816 2817 fail: ifp->if_flags &= ~IFF_UP; 2818 iwi_stop(ifp, 0); 2819 2820 return error; 2821 } 2822 2823 2824 /* 2825 * Return whether or not the radio is enabled in hardware 2826 * (i.e. the rfkill switch is "off"). 2827 */ 2828 static int 2829 iwi_getrfkill(struct iwi_softc *sc) 2830 { 2831 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2832 } 2833 2834 static int 2835 iwi_sysctl_radio(SYSCTLFN_ARGS) 2836 { 2837 struct sysctlnode node; 2838 struct iwi_softc *sc; 2839 int val, error; 2840 2841 node = *rnode; 2842 sc = (struct iwi_softc *)node.sysctl_data; 2843 2844 val = !iwi_getrfkill(sc); 2845 2846 node.sysctl_data = &val; 2847 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2848 2849 if (error || newp == NULL) 2850 return error; 2851 2852 return 0; 2853 } 2854 2855 #ifdef IWI_DEBUG 2856 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2857 { 2858 int rc; 2859 const struct sysctlnode *rnode; 2860 const struct sysctlnode *cnode; 2861 2862 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2863 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2864 SYSCTL_DESCR("iwi global controls"), 2865 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2866 goto err; 2867 2868 /* control debugging printfs */ 2869 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2870 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2871 "debug", SYSCTL_DESCR("Enable debugging output"), 2872 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2873 goto err; 2874 2875 return; 2876 err: 2877 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2878 } 2879 2880 #endif /* IWI_DEBUG */ 2881 2882 /* 2883 * Add sysctl knobs. 2884 */ 2885 static void 2886 iwi_sysctlattach(struct iwi_softc *sc) 2887 { 2888 int rc; 2889 const struct sysctlnode *rnode; 2890 const struct sysctlnode *cnode; 2891 2892 struct sysctllog **clog = &sc->sc_sysctllog; 2893 2894 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2895 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2896 SYSCTL_DESCR("iwi controls and statistics"), 2897 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2898 goto err; 2899 2900 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2901 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2902 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2903 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2904 goto err; 2905 2906 sc->dwelltime = 100; 2907 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2908 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2909 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2910 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2911 goto err; 2912 2913 sc->bluetooth = 0; 2914 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2915 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2916 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2917 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2918 goto err; 2919 2920 sc->antenna = IWI_ANTENNA_AUTO; 2921 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2922 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2923 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2924 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2925 goto err; 2926 2927 return; 2928 err: 2929 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2930 } 2931 2932 static void 2933 iwi_stop(struct ifnet *ifp, int disable) 2934 { 2935 struct iwi_softc *sc = ifp->if_softc; 2936 struct ieee80211com *ic = &sc->sc_ic; 2937 2938 IWI_LED_OFF(sc); 2939 2940 iwi_stop_master(sc); 2941 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2942 2943 /* reset rings */ 2944 iwi_reset_cmd_ring(sc, &sc->cmdq); 2945 iwi_reset_tx_ring(sc, &sc->txq[0]); 2946 iwi_reset_tx_ring(sc, &sc->txq[1]); 2947 iwi_reset_tx_ring(sc, &sc->txq[2]); 2948 iwi_reset_tx_ring(sc, &sc->txq[3]); 2949 iwi_reset_rx_ring(sc, &sc->rxq); 2950 2951 ifp->if_timer = 0; 2952 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2953 2954 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2955 } 2956 2957 static void 2958 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2959 { 2960 uint32_t val; 2961 2962 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2963 2964 switch (sc->nictype) { 2965 case 1: 2966 /* special NIC type: reversed leds */ 2967 if (state == IWI_LED_ACTIVITY) { 2968 state &= ~IWI_LED_ACTIVITY; 2969 state |= IWI_LED_ASSOCIATED; 2970 } else if (state == IWI_LED_ASSOCIATED) { 2971 state &= ~IWI_LED_ASSOCIATED; 2972 state |= IWI_LED_ACTIVITY; 2973 } 2974 /* and ignore toggle effect */ 2975 val |= state; 2976 break; 2977 case 0: 2978 case 2: 2979 case 3: 2980 case 4: 2981 val = (toggle && (val & state)) ? val & ~state : val | state; 2982 break; 2983 default: 2984 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2985 sc->nictype); 2986 return; 2987 break; 2988 } 2989 2990 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2991 2992 return; 2993 } 2994 2995 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2996 { 2997 const struct sysctlnode *rnode; 2998 const struct sysctlnode *cnode; 2999 3000 sysctl_createv(NULL, 0, NULL, &rnode, 3001 CTLFLAG_PERMANENT, 3002 CTLTYPE_NODE, "iwi", 3003 NULL, 3004 NULL, 0, 3005 NULL, 0, 3006 CTL_HW, CTL_CREATE, CTL_EOL); 3007 3008 sysctl_createv(NULL, 0, &rnode, &cnode, 3009 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 3010 CTLTYPE_INT, "accept_eula", 3011 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 3012 NULL, 0, 3013 &iwi_accept_eula, sizeof(iwi_accept_eula), 3014 CTL_CREATE, CTL_EOL); 3015 } 3016