1 /* $NetBSD: if_iwi.c,v 1.120 2022/08/22 18:09:04 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 1.120 2022/08/22 18:09:04 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 if_initialize(ifp); 368 ieee80211_ifattach(ic); 369 /* Use common softint-based if_input */ 370 ifp->if_percpuq = if_percpuq_create(ifp); 371 if_register(ifp); 372 373 /* override default methods */ 374 ic->ic_node_alloc = iwi_node_alloc; 375 sc->sc_node_free = ic->ic_node_free; 376 ic->ic_node_free = iwi_node_free; 377 /* override state transition machine */ 378 sc->sc_newstate = ic->ic_newstate; 379 ic->ic_newstate = iwi_newstate; 380 381 /* XXX media locking needs revisiting */ 382 mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 383 ieee80211_media_init_with_lock(ic, 384 iwi_media_change, iwi_media_status, &sc->sc_media_mtx); 385 386 /* 387 * Allocate rings. 388 */ 389 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 390 aprint_error_dev(self, "could not allocate command ring\n"); 391 goto fail; 392 } 393 394 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 395 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 396 if (error != 0) { 397 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 398 goto fail; 399 } 400 401 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 402 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 403 if (error != 0) { 404 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 405 goto fail; 406 } 407 408 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 409 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 410 if (error != 0) { 411 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 412 goto fail; 413 } 414 415 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 416 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 417 if (error != 0) { 418 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 419 goto fail; 420 } 421 422 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 423 aprint_error_dev(self, "could not allocate Rx ring\n"); 424 goto fail; 425 } 426 427 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 428 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 429 430 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 431 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 432 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 433 434 sc->sc_txtap_len = sizeof sc->sc_txtapu; 435 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 436 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 437 438 iwi_sysctlattach(sc); 439 440 if (pmf_device_register(self, NULL, NULL)) 441 pmf_class_network_register(self, ifp); 442 else 443 aprint_error_dev(self, "couldn't establish power handler\n"); 444 445 ieee80211_announce(ic); 446 447 return; 448 449 fail: iwi_detach(self, 0); 450 } 451 452 static int 453 iwi_detach(device_t self, int flags) 454 { 455 struct iwi_softc *sc = device_private(self); 456 struct ifnet *ifp = &sc->sc_if; 457 458 if (ifp->if_softc != NULL) { 459 pmf_device_deregister(self); 460 iwi_stop(ifp, 1); 461 iwi_free_firmware(sc); 462 ieee80211_ifdetach(&sc->sc_ic); 463 if_detach(ifp); 464 } 465 466 iwi_free_cmd_ring(sc, &sc->cmdq); 467 iwi_free_tx_ring(sc, &sc->txq[0]); 468 iwi_free_tx_ring(sc, &sc->txq[1]); 469 iwi_free_tx_ring(sc, &sc->txq[2]); 470 iwi_free_tx_ring(sc, &sc->txq[3]); 471 iwi_free_rx_ring(sc, &sc->rxq); 472 473 if (sc->sc_ih != NULL) { 474 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 475 sc->sc_ih = NULL; 476 } 477 478 if (sc->sc_soft_ih != NULL) { 479 softint_disestablish(sc->sc_soft_ih); 480 sc->sc_soft_ih = NULL; 481 } 482 483 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 484 485 return 0; 486 } 487 488 static int 489 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 490 int count) 491 { 492 int error, nsegs; 493 494 ring->count = count; 495 ring->queued = 0; 496 ring->cur = ring->next = 0; 497 498 /* 499 * Allocate and map command ring 500 */ 501 error = bus_dmamap_create(sc->sc_dmat, 502 IWI_CMD_DESC_SIZE * count, 1, 503 IWI_CMD_DESC_SIZE * count, 0, 504 BUS_DMA_NOWAIT, &ring->desc_map); 505 if (error != 0) { 506 aprint_error_dev(sc->sc_dev, 507 "could not create command ring DMA map\n"); 508 ring->desc_map = NULL; 509 goto fail; 510 } 511 512 error = bus_dmamem_alloc(sc->sc_dmat, 513 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 514 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 515 if (error != 0) { 516 aprint_error_dev(sc->sc_dev, 517 "could not allocate command ring DMA memory\n"); 518 goto fail; 519 } 520 521 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 522 IWI_CMD_DESC_SIZE * count, 523 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 524 if (error != 0) { 525 aprint_error_dev(sc->sc_dev, 526 "could not map command ring DMA memory\n"); 527 goto fail; 528 } 529 530 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 531 IWI_CMD_DESC_SIZE * count, NULL, 532 BUS_DMA_NOWAIT); 533 if (error != 0) { 534 aprint_error_dev(sc->sc_dev, 535 "could not load command ring DMA map\n"); 536 goto fail; 537 } 538 539 memset(sc->cmdq.desc, 0, 540 IWI_CMD_DESC_SIZE * count); 541 542 return 0; 543 544 fail: return error; 545 } 546 547 static void 548 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 549 { 550 int i; 551 552 for (i = ring->next; i != ring->cur;) { 553 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 554 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 555 BUS_DMASYNC_POSTWRITE); 556 557 wakeup(&ring->desc[i]); 558 i = (i + 1) % ring->count; 559 } 560 561 ring->queued = 0; 562 ring->cur = ring->next = 0; 563 } 564 565 static void 566 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 567 { 568 if (ring->desc_map != NULL) { 569 if (ring->desc != NULL) { 570 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 571 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 572 IWI_CMD_DESC_SIZE * ring->count); 573 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 574 } 575 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 576 } 577 } 578 579 static int 580 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 581 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 582 { 583 int i, error, nsegs; 584 585 ring->count = 0; 586 ring->queued = 0; 587 ring->cur = ring->next = 0; 588 ring->csr_ridx = csr_ridx; 589 ring->csr_widx = csr_widx; 590 591 /* 592 * Allocate and map Tx ring 593 */ 594 error = bus_dmamap_create(sc->sc_dmat, 595 IWI_TX_DESC_SIZE * count, 1, 596 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 597 &ring->desc_map); 598 if (error != 0) { 599 aprint_error_dev(sc->sc_dev, 600 "could not create tx ring DMA map\n"); 601 ring->desc_map = NULL; 602 goto fail; 603 } 604 605 error = bus_dmamem_alloc(sc->sc_dmat, 606 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 607 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 608 if (error != 0) { 609 aprint_error_dev(sc->sc_dev, 610 "could not allocate tx ring DMA memory\n"); 611 goto fail; 612 } 613 614 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 615 IWI_TX_DESC_SIZE * count, 616 (void **)&ring->desc, BUS_DMA_NOWAIT); 617 if (error != 0) { 618 aprint_error_dev(sc->sc_dev, 619 "could not map tx ring DMA memory\n"); 620 goto fail; 621 } 622 623 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 624 IWI_TX_DESC_SIZE * count, NULL, 625 BUS_DMA_NOWAIT); 626 if (error != 0) { 627 aprint_error_dev(sc->sc_dev, 628 "could not load tx ring DMA map\n"); 629 goto fail; 630 } 631 632 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 633 634 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 635 M_WAITOK | M_ZERO); 636 ring->count = count; 637 638 /* 639 * Allocate Tx buffers DMA maps 640 */ 641 for (i = 0; i < count; i++) { 642 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 643 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 644 if (error != 0) { 645 aprint_error_dev(sc->sc_dev, 646 "could not create tx buf DMA map"); 647 ring->data[i].map = NULL; 648 goto fail; 649 } 650 } 651 return 0; 652 653 fail: return error; 654 } 655 656 static void 657 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 658 { 659 struct iwi_tx_data *data; 660 int i; 661 662 for (i = 0; i < ring->count; i++) { 663 data = &ring->data[i]; 664 665 if (data->map != NULL) { 666 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 667 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 668 bus_dmamap_unload(sc->sc_dmat, data->map); 669 } 670 671 if (data->m != NULL) { 672 m_freem(data->m); 673 data->m = NULL; 674 } 675 676 if (data->ni != NULL) { 677 ieee80211_free_node(data->ni); 678 data->ni = NULL; 679 } 680 } 681 682 ring->queued = 0; 683 ring->cur = ring->next = 0; 684 } 685 686 static void 687 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 688 { 689 int i; 690 struct iwi_tx_data *data; 691 692 if (ring->desc_map != NULL) { 693 if (ring->desc != NULL) { 694 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 695 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 696 IWI_TX_DESC_SIZE * ring->count); 697 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 698 } 699 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 700 } 701 702 for (i = 0; i < ring->count; i++) { 703 data = &ring->data[i]; 704 705 if (data->map != NULL) { 706 bus_dmamap_unload(sc->sc_dmat, data->map); 707 bus_dmamap_destroy(sc->sc_dmat, data->map); 708 } 709 710 if (data->m != NULL) { 711 m_freem(data->m); 712 } 713 } 714 } 715 716 static int 717 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 718 { 719 int i, error; 720 721 ring->count = 0; 722 ring->cur = 0; 723 724 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 725 M_WAITOK | M_ZERO); 726 ring->count = count; 727 728 /* 729 * Allocate and map Rx buffers 730 */ 731 for (i = 0; i < count; i++) { 732 733 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 734 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 735 if (error != 0) { 736 aprint_error_dev(sc->sc_dev, 737 "could not create rx buf DMA map"); 738 ring->data[i].map = NULL; 739 goto fail; 740 } 741 742 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 743 error = ENOMEM; 744 goto fail; 745 } 746 747 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 748 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 749 if (error != 0) { 750 aprint_error_dev(sc->sc_dev, 751 "could not load rx buffer DMA map\n"); 752 goto fail; 753 } 754 755 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 756 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 757 } 758 759 return 0; 760 761 fail: return error; 762 } 763 764 static void 765 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 766 { 767 ring->cur = 0; 768 } 769 770 static void 771 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 772 { 773 int i; 774 struct iwi_rx_data *data; 775 776 for (i = 0; i < ring->count; i++) { 777 data = &ring->data[i]; 778 779 if (data->map != NULL) { 780 bus_dmamap_unload(sc->sc_dmat, data->map); 781 bus_dmamap_destroy(sc->sc_dmat, data->map); 782 } 783 784 if (data->m != NULL) { 785 m_freem(data->m); 786 } 787 } 788 } 789 790 static struct ieee80211_node * 791 iwi_node_alloc(struct ieee80211_node_table *nt) 792 { 793 struct iwi_node *in; 794 795 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 796 if (in == NULL) 797 return NULL; 798 799 in->in_station = -1; 800 801 return &in->in_node; 802 } 803 804 static int 805 iwi_alloc_unr(struct iwi_softc *sc) 806 { 807 int i; 808 809 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 810 if ((sc->sc_unr & (1 << i)) == 0) { 811 sc->sc_unr |= 1 << i; 812 return i; 813 } 814 815 return -1; 816 } 817 818 static void 819 iwi_free_unr(struct iwi_softc *sc, int r) 820 { 821 822 sc->sc_unr &= 1 << r; 823 } 824 825 static void 826 iwi_node_free(struct ieee80211_node *ni) 827 { 828 struct ieee80211com *ic = ni->ni_ic; 829 struct iwi_softc *sc = ic->ic_ifp->if_softc; 830 struct iwi_node *in = (struct iwi_node *)ni; 831 832 if (in->in_station != -1) 833 iwi_free_unr(sc, in->in_station); 834 835 sc->sc_node_free(ni); 836 } 837 838 static int 839 iwi_media_change(struct ifnet *ifp) 840 { 841 int error; 842 843 error = ieee80211_media_change(ifp); 844 if (error != ENETRESET) 845 return error; 846 847 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 848 iwi_init(ifp); 849 850 return 0; 851 } 852 853 /* 854 * Convert h/w rate code to IEEE rate code. 855 */ 856 static int 857 iwi_cvtrate(int iwirate) 858 { 859 switch (iwirate) { 860 case IWI_RATE_DS1: return 2; 861 case IWI_RATE_DS2: return 4; 862 case IWI_RATE_DS5: return 11; 863 case IWI_RATE_DS11: return 22; 864 case IWI_RATE_OFDM6: return 12; 865 case IWI_RATE_OFDM9: return 18; 866 case IWI_RATE_OFDM12: return 24; 867 case IWI_RATE_OFDM18: return 36; 868 case IWI_RATE_OFDM24: return 48; 869 case IWI_RATE_OFDM36: return 72; 870 case IWI_RATE_OFDM48: return 96; 871 case IWI_RATE_OFDM54: return 108; 872 } 873 return 0; 874 } 875 876 /* 877 * The firmware automatically adapts the transmit speed. We report its current 878 * value here. 879 */ 880 static void 881 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 882 { 883 struct iwi_softc *sc = ifp->if_softc; 884 struct ieee80211com *ic = &sc->sc_ic; 885 int rate; 886 887 imr->ifm_status = IFM_AVALID; 888 imr->ifm_active = IFM_IEEE80211; 889 if (ic->ic_state == IEEE80211_S_RUN) 890 imr->ifm_status |= IFM_ACTIVE; 891 892 /* read current transmission rate from adapter */ 893 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 894 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 895 896 switch (ic->ic_opmode) { 897 case IEEE80211_M_STA: 898 break; 899 900 case IEEE80211_M_IBSS: 901 imr->ifm_active |= IFM_IEEE80211_ADHOC; 902 break; 903 904 case IEEE80211_M_MONITOR: 905 imr->ifm_active |= IFM_IEEE80211_MONITOR; 906 break; 907 908 case IEEE80211_M_AHDEMO: 909 case IEEE80211_M_HOSTAP: 910 /* should not get there */ 911 break; 912 } 913 } 914 915 static int 916 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 917 { 918 struct iwi_softc *sc = ic->ic_ifp->if_softc; 919 920 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 921 ieee80211_state_name[ic->ic_state], 922 ieee80211_state_name[nstate], sc->flags)); 923 924 switch (nstate) { 925 case IEEE80211_S_SCAN: 926 if (sc->flags & IWI_FLAG_SCANNING) 927 break; 928 929 ieee80211_node_table_reset(&ic->ic_scan); 930 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 931 sc->flags |= IWI_FLAG_SCANNING; 932 /* blink the led while scanning */ 933 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 934 iwi_scan(sc); 935 break; 936 937 case IEEE80211_S_AUTH: 938 iwi_auth_and_assoc(sc); 939 break; 940 941 case IEEE80211_S_RUN: 942 if (ic->ic_opmode == IEEE80211_M_IBSS && 943 ic->ic_state == IEEE80211_S_SCAN) 944 iwi_auth_and_assoc(sc); 945 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 946 iwi_set_chan(sc, ic->ic_ibss_chan); 947 break; 948 case IEEE80211_S_ASSOC: 949 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 950 if (ic->ic_state == IEEE80211_S_AUTH) 951 break; 952 iwi_auth_and_assoc(sc); 953 break; 954 955 case IEEE80211_S_INIT: 956 sc->flags &= ~IWI_FLAG_SCANNING; 957 break; 958 } 959 960 return sc->sc_newstate(ic, nstate, arg); 961 } 962 963 /* 964 * WME parameters coming from IEEE 802.11e specification. These values are 965 * already declared in ieee80211_proto.c, but they are static so they can't 966 * be reused here. 967 */ 968 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 969 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 970 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 971 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 972 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 973 }; 974 975 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 976 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 977 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 978 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 979 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 980 }; 981 982 static int 983 iwi_wme_update(struct ieee80211com *ic) 984 { 985 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 986 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 987 struct iwi_softc *sc = ic->ic_ifp->if_softc; 988 struct iwi_wme_params wme[3]; 989 const struct wmeParams *wmep; 990 int ac; 991 992 /* 993 * We shall not override firmware default WME values if WME is not 994 * actually enabled. 995 */ 996 if (!(ic->ic_flags & IEEE80211_F_WME)) 997 return 0; 998 999 for (ac = 0; ac < WME_NUM_AC; ac++) { 1000 /* set WME values for current operating mode */ 1001 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1002 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1003 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1004 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1005 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1006 wme[0].acm[ac] = wmep->wmep_acm; 1007 1008 /* set WME values for CCK modulation */ 1009 wmep = &iwi_wme_cck_params[ac]; 1010 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1011 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1012 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1013 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1014 wme[1].acm[ac] = wmep->wmep_acm; 1015 1016 /* set WME values for OFDM modulation */ 1017 wmep = &iwi_wme_ofdm_params[ac]; 1018 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1019 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1020 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1021 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1022 wme[2].acm[ac] = wmep->wmep_acm; 1023 } 1024 1025 DPRINTF(("Setting WME parameters\n")); 1026 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1027 #undef IWI_USEC 1028 #undef IWI_EXP2 1029 } 1030 1031 /* 1032 * Read 16 bits at address 'addr' from the serial EEPROM. 1033 */ 1034 static uint16_t 1035 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1036 { 1037 uint32_t tmp; 1038 uint16_t val; 1039 int n; 1040 1041 /* Clock C once before the first command */ 1042 IWI_EEPROM_CTL(sc, 0); 1043 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1046 1047 /* Write start bit (1) */ 1048 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1049 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1050 1051 /* Write READ opcode (10) */ 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1054 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1055 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1056 1057 /* Write address A7-A0 */ 1058 for (n = 7; n >= 0; n--) { 1059 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1060 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1061 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1062 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1063 } 1064 1065 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1066 1067 /* Read data Q15-Q0 */ 1068 val = 0; 1069 for (n = 15; n >= 0; n--) { 1070 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1071 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1072 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1073 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1074 } 1075 1076 IWI_EEPROM_CTL(sc, 0); 1077 1078 /* Clear Chip Select and clock C */ 1079 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1080 IWI_EEPROM_CTL(sc, 0); 1081 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1082 1083 return val; 1084 } 1085 1086 /* 1087 * XXX: Hack to set the current channel to the value advertised in beacons or 1088 * probe responses. Only used during AP detection. 1089 */ 1090 static void 1091 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1092 { 1093 struct ieee80211_frame *wh; 1094 uint8_t subtype; 1095 uint8_t *frm, *efrm; 1096 1097 wh = mtod(m, struct ieee80211_frame *); 1098 1099 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1100 return; 1101 1102 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1103 1104 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1105 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1106 return; 1107 1108 frm = (uint8_t *)(wh + 1); 1109 efrm = mtod(m, uint8_t *) + m->m_len; 1110 1111 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1112 while (frm + 2 < efrm) { 1113 if (*frm == IEEE80211_ELEMID_DSPARMS) { 1114 #if IEEE80211_CHAN_MAX < 255 1115 if (frm[2] <= IEEE80211_CHAN_MAX) 1116 #endif 1117 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1118 } 1119 1120 frm += frm[1] + 2; 1121 } 1122 } 1123 1124 static struct mbuf * 1125 iwi_alloc_rx_buf(struct iwi_softc *sc) 1126 { 1127 struct mbuf *m; 1128 1129 MGETHDR(m, M_DONTWAIT, MT_DATA); 1130 if (m == NULL) { 1131 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1132 return NULL; 1133 } 1134 1135 MCLGET(m, M_DONTWAIT); 1136 if (!(m->m_flags & M_EXT)) { 1137 aprint_error_dev(sc->sc_dev, 1138 "could not allocate rx mbuf cluster\n"); 1139 m_freem(m); 1140 return NULL; 1141 } 1142 1143 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1144 return m; 1145 } 1146 1147 static void 1148 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1149 struct iwi_frame *frame) 1150 { 1151 struct ieee80211com *ic = &sc->sc_ic; 1152 struct ifnet *ifp = ic->ic_ifp; 1153 struct mbuf *m, *m_new; 1154 struct ieee80211_frame *wh; 1155 struct ieee80211_node *ni; 1156 int error, s; 1157 1158 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1159 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1160 1161 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1162 le16toh(frame->len) > MCLBYTES) { 1163 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1164 if_statinc(ifp, if_ierrors); 1165 return; 1166 } 1167 1168 /* 1169 * Try to allocate a new mbuf for this ring element and 1170 * load it before processing the current mbuf. If the ring 1171 * element cannot be reloaded, drop the received packet 1172 * and reuse the old mbuf. In the unlikely case that 1173 * the old mbuf can't be reloaded either, explicitly panic. 1174 * 1175 * XXX Reorganize buffer by moving elements from the logical 1176 * end of the ring to the front instead of dropping. 1177 */ 1178 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1179 if_statinc(ifp, if_ierrors); 1180 return; 1181 } 1182 1183 bus_dmamap_unload(sc->sc_dmat, data->map); 1184 1185 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1186 BUS_DMA_READ | BUS_DMA_NOWAIT); 1187 if (error != 0) { 1188 aprint_error_dev(sc->sc_dev, 1189 "could not load rx buf DMA map\n"); 1190 m_freem(m_new); 1191 if_statinc(ifp, if_ierrors); 1192 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1193 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1194 if (error) 1195 panic("%s: unable to remap rx buf", 1196 device_xname(sc->sc_dev)); 1197 return; 1198 } 1199 1200 /* 1201 * New mbuf successfully loaded, update RX ring and continue 1202 * processing. 1203 */ 1204 m = data->m; 1205 data->m = m_new; 1206 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1207 1208 /* Finalize mbuf */ 1209 m_set_rcvif(m, ifp); 1210 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1211 sizeof (struct iwi_frame) + le16toh(frame->len); 1212 1213 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1214 1215 s = splnet(); 1216 1217 if (ic->ic_state == IEEE80211_S_SCAN) 1218 iwi_fix_channel(ic, m); 1219 1220 if (sc->sc_drvbpf != NULL) { 1221 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1222 1223 tap->wr_flags = 0; 1224 tap->wr_rate = iwi_cvtrate(frame->rate); 1225 tap->wr_chan_freq = 1226 htole16(ic->ic_channels[frame->chan].ic_freq); 1227 tap->wr_chan_flags = 1228 htole16(ic->ic_channels[frame->chan].ic_flags); 1229 tap->wr_antsignal = frame->signal; 1230 tap->wr_antenna = frame->antenna; 1231 1232 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1233 } 1234 wh = mtod(m, struct ieee80211_frame *); 1235 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1236 1237 /* Send the frame to the upper layer */ 1238 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1239 1240 /* node is no longer needed */ 1241 ieee80211_free_node(ni); 1242 1243 splx(s); 1244 } 1245 1246 static void 1247 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1248 { 1249 struct ieee80211com *ic = &sc->sc_ic; 1250 struct iwi_notif_authentication *auth; 1251 struct iwi_notif_association *assoc; 1252 struct iwi_notif_beacon_state *beacon; 1253 int s; 1254 1255 switch (notif->type) { 1256 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1257 #ifdef IWI_DEBUG 1258 { 1259 struct iwi_notif_scan_channel *chan = 1260 (struct iwi_notif_scan_channel *)(notif + 1); 1261 1262 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1263 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1264 } 1265 #endif 1266 break; 1267 1268 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1269 #ifdef IWI_DEBUG 1270 { 1271 struct iwi_notif_scan_complete *scan = 1272 (struct iwi_notif_scan_complete *)(notif + 1); 1273 1274 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1275 scan->status)); 1276 } 1277 #endif 1278 1279 /* monitor mode uses scan to set the channel ... */ 1280 s = splnet(); 1281 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1282 sc->flags &= ~IWI_FLAG_SCANNING; 1283 ieee80211_end_scan(ic); 1284 } else 1285 iwi_set_chan(sc, ic->ic_ibss_chan); 1286 splx(s); 1287 break; 1288 1289 case IWI_NOTIF_TYPE_AUTHENTICATION: 1290 auth = (struct iwi_notif_authentication *)(notif + 1); 1291 1292 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1293 1294 switch (auth->state) { 1295 case IWI_AUTH_SUCCESS: 1296 s = splnet(); 1297 ieee80211_node_authorize(ic->ic_bss); 1298 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1299 splx(s); 1300 break; 1301 1302 case IWI_AUTH_FAIL: 1303 break; 1304 1305 case IWI_AUTH_SENT_1: 1306 case IWI_AUTH_RECV_2: 1307 case IWI_AUTH_SEQ1_PASS: 1308 break; 1309 1310 case IWI_AUTH_SEQ1_FAIL: 1311 break; 1312 1313 default: 1314 aprint_error_dev(sc->sc_dev, 1315 "unknown authentication state %u\n", auth->state); 1316 } 1317 break; 1318 1319 case IWI_NOTIF_TYPE_ASSOCIATION: 1320 assoc = (struct iwi_notif_association *)(notif + 1); 1321 1322 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1323 assoc->status)); 1324 1325 switch (assoc->state) { 1326 case IWI_AUTH_SUCCESS: 1327 /* re-association, do nothing */ 1328 break; 1329 1330 case IWI_ASSOC_SUCCESS: 1331 s = splnet(); 1332 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1333 splx(s); 1334 break; 1335 1336 case IWI_ASSOC_FAIL: 1337 s = splnet(); 1338 ieee80211_begin_scan(ic, 1); 1339 splx(s); 1340 break; 1341 1342 default: 1343 aprint_error_dev(sc->sc_dev, 1344 "unknown association state %u\n", assoc->state); 1345 } 1346 break; 1347 1348 case IWI_NOTIF_TYPE_BEACON: 1349 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1350 1351 if (beacon->state == IWI_BEACON_MISS) { 1352 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1353 device_xname(sc->sc_dev), le32toh(beacon->number))); 1354 } 1355 break; 1356 1357 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1358 case IWI_NOTIF_TYPE_LINK_QUALITY: 1359 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1360 case IWI_NOTIF_TYPE_CALIBRATION: 1361 case IWI_NOTIF_TYPE_NOISE: 1362 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1363 break; 1364 1365 default: 1366 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1367 device_xname(sc->sc_dev), notif->type, notif->flags, 1368 le16toh(notif->len))); 1369 } 1370 } 1371 1372 static void 1373 iwi_cmd_intr(struct iwi_softc *sc) 1374 { 1375 1376 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1377 1378 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1379 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1380 BUS_DMASYNC_POSTWRITE); 1381 1382 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1383 1384 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1385 1386 if (--sc->cmdq.queued > 0) { 1387 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1388 (sc->cmdq.next + 1) % sc->cmdq.count); 1389 } 1390 } 1391 1392 static void 1393 iwi_rx_intr(struct iwi_softc *sc) 1394 { 1395 struct iwi_rx_data *data; 1396 struct iwi_hdr *hdr; 1397 uint32_t hw; 1398 1399 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1400 1401 for (; sc->rxq.cur != hw;) { 1402 data = &sc->rxq.data[sc->rxq.cur]; 1403 1404 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1405 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1406 1407 hdr = mtod(data->m, struct iwi_hdr *); 1408 1409 switch (hdr->type) { 1410 case IWI_HDR_TYPE_FRAME: 1411 iwi_frame_intr(sc, data, sc->rxq.cur, 1412 (struct iwi_frame *)(hdr + 1)); 1413 break; 1414 1415 case IWI_HDR_TYPE_NOTIF: 1416 iwi_notification_intr(sc, 1417 (struct iwi_notif *)(hdr + 1)); 1418 break; 1419 1420 default: 1421 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1422 hdr->type); 1423 } 1424 1425 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1426 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1427 1428 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1429 1430 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1431 } 1432 1433 /* Tell the firmware what we have processed */ 1434 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1435 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1436 } 1437 1438 static void 1439 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1440 { 1441 struct ifnet *ifp = &sc->sc_if; 1442 struct iwi_tx_data *data; 1443 uint32_t hw; 1444 int s; 1445 1446 s = splnet(); 1447 1448 hw = CSR_READ_4(sc, txq->csr_ridx); 1449 1450 for (; txq->next != hw;) { 1451 data = &txq->data[txq->next]; 1452 1453 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1454 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1455 bus_dmamap_unload(sc->sc_dmat, data->map); 1456 m_freem(data->m); 1457 data->m = NULL; 1458 ieee80211_free_node(data->ni); 1459 data->ni = NULL; 1460 1461 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1462 1463 if_statinc(ifp, if_opackets); 1464 1465 txq->queued--; 1466 txq->next = (txq->next + 1) % txq->count; 1467 } 1468 1469 sc->sc_tx_timer = 0; 1470 1471 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1472 ifp->if_flags &= ~IFF_OACTIVE; 1473 1474 /* Call start() since some buffer descriptors have been released */ 1475 iwi_start(ifp); /* in softint */ 1476 } 1477 1478 splx(s); 1479 } 1480 1481 static int 1482 iwi_intr(void *arg) 1483 { 1484 struct iwi_softc *sc = arg; 1485 uint32_t r; 1486 1487 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1488 return 0; 1489 1490 /* Disable interrupts */ 1491 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1492 1493 softint_schedule(sc->sc_soft_ih); 1494 return 1; 1495 } 1496 1497 static void 1498 iwi_softintr(void *arg) 1499 { 1500 struct iwi_softc *sc = arg; 1501 uint32_t r; 1502 int s; 1503 1504 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1505 goto out; 1506 1507 /* Acknowledge interrupts */ 1508 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1509 1510 if (r & IWI_INTR_FATAL_ERROR) { 1511 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1512 s = splnet(); 1513 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1514 iwi_stop(&sc->sc_if, 1); 1515 splx(s); 1516 return; 1517 } 1518 1519 if (r & IWI_INTR_FW_INITED) { 1520 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1521 wakeup(sc); 1522 } 1523 1524 if (r & IWI_INTR_RADIO_OFF) { 1525 DPRINTF(("radio transmitter off\n")); 1526 s = splnet(); 1527 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1528 iwi_stop(&sc->sc_if, 1); 1529 splx(s); 1530 return; 1531 } 1532 1533 if (r & IWI_INTR_CMD_DONE) 1534 iwi_cmd_intr(sc); 1535 1536 if (r & IWI_INTR_TX1_DONE) 1537 iwi_tx_intr(sc, &sc->txq[0]); 1538 1539 if (r & IWI_INTR_TX2_DONE) 1540 iwi_tx_intr(sc, &sc->txq[1]); 1541 1542 if (r & IWI_INTR_TX3_DONE) 1543 iwi_tx_intr(sc, &sc->txq[2]); 1544 1545 if (r & IWI_INTR_TX4_DONE) 1546 iwi_tx_intr(sc, &sc->txq[3]); 1547 1548 if (r & IWI_INTR_RX_DONE) 1549 iwi_rx_intr(sc); 1550 1551 if (r & IWI_INTR_PARITY_ERROR) 1552 aprint_error_dev(sc->sc_dev, "parity error\n"); 1553 1554 out: 1555 /* Re-enable interrupts */ 1556 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1557 } 1558 1559 static int 1560 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1561 int async) 1562 { 1563 struct iwi_cmd_desc *desc; 1564 1565 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1566 1567 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1568 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1569 desc->type = type; 1570 desc->len = len; 1571 memcpy(desc->data, data, len); 1572 1573 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1574 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1575 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1576 1577 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1578 sc->cmdq.cur, type, len, async)); 1579 1580 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1581 1582 if (++sc->cmdq.queued == 1) 1583 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1584 1585 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1586 } 1587 1588 static void 1589 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1590 { 1591 struct iwi_ibssnode node; 1592 1593 /* write node information into NIC memory */ 1594 memset(&node, 0, sizeof node); 1595 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1596 1597 CSR_WRITE_REGION_1(sc, 1598 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1599 (uint8_t *)&node, sizeof node); 1600 } 1601 1602 static int 1603 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1604 int ac) 1605 { 1606 struct iwi_softc *sc = ifp->if_softc; 1607 struct ieee80211com *ic = &sc->sc_ic; 1608 struct iwi_node *in = (struct iwi_node *)ni; 1609 struct ieee80211_frame *wh; 1610 struct ieee80211_key *k; 1611 const struct chanAccParams *cap; 1612 struct iwi_tx_ring *txq = &sc->txq[ac]; 1613 struct iwi_tx_data *data; 1614 struct iwi_tx_desc *desc; 1615 struct mbuf *mnew; 1616 int error, hdrlen, i, noack = 0; 1617 1618 wh = mtod(m0, struct ieee80211_frame *); 1619 1620 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1621 hdrlen = sizeof (struct ieee80211_qosframe); 1622 cap = &ic->ic_wme.wme_chanParams; 1623 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1624 } else 1625 hdrlen = sizeof (struct ieee80211_frame); 1626 1627 /* 1628 * This is only used in IBSS mode where the firmware expect an index 1629 * in a h/w table instead of a destination address. 1630 */ 1631 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1632 in->in_station = iwi_alloc_unr(sc); 1633 1634 if (in->in_station == -1) { /* h/w table is full */ 1635 m_freem(m0); 1636 ieee80211_free_node(ni); 1637 if_statinc(ifp, if_oerrors); 1638 return 0; 1639 } 1640 iwi_write_ibssnode(sc, in); 1641 } 1642 1643 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1644 k = ieee80211_crypto_encap(ic, ni, m0); 1645 if (k == NULL) { 1646 m_freem(m0); 1647 return ENOBUFS; 1648 } 1649 1650 /* packet header may have moved, reset our local pointer */ 1651 wh = mtod(m0, struct ieee80211_frame *); 1652 } 1653 1654 if (sc->sc_drvbpf != NULL) { 1655 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1656 1657 tap->wt_flags = 0; 1658 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1659 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1660 1661 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0, BPF_D_OUT); 1662 } 1663 1664 data = &txq->data[txq->cur]; 1665 desc = &txq->desc[txq->cur]; 1666 1667 /* save and trim IEEE802.11 header */ 1668 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1669 m_adj(m0, hdrlen); 1670 1671 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1672 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1673 if (error != 0 && error != EFBIG) { 1674 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1675 error); 1676 m_freem(m0); 1677 return error; 1678 } 1679 if (error != 0) { 1680 /* too many fragments, linearize */ 1681 1682 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1683 if (mnew == NULL) { 1684 m_freem(m0); 1685 return ENOMEM; 1686 } 1687 1688 m_copy_pkthdr(mnew, m0); 1689 1690 /* If the data won't fit in the header, get a cluster */ 1691 if (m0->m_pkthdr.len > MHLEN) { 1692 MCLGET(mnew, M_DONTWAIT); 1693 if (!(mnew->m_flags & M_EXT)) { 1694 m_freem(m0); 1695 m_freem(mnew); 1696 return ENOMEM; 1697 } 1698 } 1699 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1700 m_freem(m0); 1701 mnew->m_len = mnew->m_pkthdr.len; 1702 m0 = mnew; 1703 1704 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1705 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1706 if (error != 0) { 1707 aprint_error_dev(sc->sc_dev, 1708 "could not map mbuf (error %d)\n", error); 1709 m_freem(m0); 1710 return error; 1711 } 1712 } 1713 1714 data->m = m0; 1715 data->ni = ni; 1716 1717 desc->hdr.type = IWI_HDR_TYPE_DATA; 1718 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1719 desc->station = 1720 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1721 desc->cmd = IWI_DATA_CMD_TX; 1722 desc->len = htole16(m0->m_pkthdr.len); 1723 desc->flags = 0; 1724 desc->xflags = 0; 1725 1726 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1727 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1728 1729 #if 0 1730 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1731 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1732 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1733 } else 1734 #endif 1735 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1736 1737 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1738 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1739 1740 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1741 desc->xflags |= IWI_DATA_XFLAG_QOS; 1742 1743 if (ic->ic_curmode == IEEE80211_MODE_11B) 1744 desc->xflags |= IWI_DATA_XFLAG_CCK; 1745 1746 desc->nseg = htole32(data->map->dm_nsegs); 1747 for (i = 0; i < data->map->dm_nsegs; i++) { 1748 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1749 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1750 } 1751 1752 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1753 txq->cur * IWI_TX_DESC_SIZE, 1754 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1755 1756 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1757 BUS_DMASYNC_PREWRITE); 1758 1759 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1760 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1761 1762 /* Inform firmware about this new packet */ 1763 txq->queued++; 1764 txq->cur = (txq->cur + 1) % txq->count; 1765 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1766 1767 return 0; 1768 } 1769 1770 static void 1771 iwi_start(struct ifnet *ifp) 1772 { 1773 struct iwi_softc *sc = ifp->if_softc; 1774 struct ieee80211com *ic = &sc->sc_ic; 1775 struct mbuf *m0; 1776 struct ether_header *eh; 1777 struct ieee80211_node *ni; 1778 int ac; 1779 1780 if (ic->ic_state != IEEE80211_S_RUN) 1781 return; 1782 1783 for (;;) { 1784 IFQ_POLL(&ifp->if_snd, m0); 1785 if (m0 == NULL) 1786 break; 1787 1788 KASSERT(m0->m_len >= sizeof(struct ether_header)); 1789 1790 eh = mtod(m0, struct ether_header *); 1791 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1792 if (ni == NULL) { 1793 IFQ_DEQUEUE(&ifp->if_snd, m0); 1794 m_freem(m0); 1795 if_statinc(ifp, if_oerrors); 1796 continue; 1797 } 1798 1799 /* classify mbuf so we can find which tx ring to use */ 1800 if (ieee80211_classify(ic, m0, ni) != 0) { 1801 IFQ_DEQUEUE(&ifp->if_snd, m0); 1802 m_freem(m0); 1803 ieee80211_free_node(ni); 1804 if_statinc(ifp, if_oerrors); 1805 continue; 1806 } 1807 1808 /* no QoS encapsulation for EAPOL frames */ 1809 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1810 M_WME_GETAC(m0) : WME_AC_BE; 1811 1812 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1813 /* there is no place left in this ring */ 1814 ifp->if_flags |= IFF_OACTIVE; 1815 break; 1816 } 1817 IFQ_DEQUEUE(&ifp->if_snd, m0); 1818 1819 bpf_mtap(ifp, m0, BPF_D_OUT); 1820 1821 m0 = ieee80211_encap(ic, m0, ni); 1822 if (m0 == NULL) { 1823 ieee80211_free_node(ni); 1824 if_statinc(ifp, if_oerrors); 1825 continue; 1826 } 1827 1828 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 1829 1830 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1831 ieee80211_free_node(ni); 1832 if_statinc(ifp, if_oerrors); 1833 break; 1834 } 1835 1836 /* start watchdog timer */ 1837 sc->sc_tx_timer = 5; 1838 ifp->if_timer = 1; 1839 } 1840 } 1841 1842 static void 1843 iwi_watchdog(struct ifnet *ifp) 1844 { 1845 struct iwi_softc *sc = ifp->if_softc; 1846 1847 ifp->if_timer = 0; 1848 1849 if (sc->sc_tx_timer > 0) { 1850 if (--sc->sc_tx_timer == 0) { 1851 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1852 if_statinc(ifp, if_oerrors); 1853 ifp->if_flags &= ~IFF_UP; 1854 iwi_stop(ifp, 1); 1855 return; 1856 } 1857 ifp->if_timer = 1; 1858 } 1859 1860 ieee80211_watchdog(&sc->sc_ic); 1861 } 1862 1863 static int 1864 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1865 { 1866 uint32_t size, buf[128]; 1867 1868 memset(buf, 0, sizeof buf); 1869 1870 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1871 return copyout(buf, tbl, sizeof buf); 1872 } 1873 1874 size = uimin(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1875 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1876 1877 return copyout(buf, tbl, sizeof buf); 1878 } 1879 1880 static int 1881 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1882 { 1883 #define IS_RUNNING(ifp) \ 1884 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1885 1886 struct iwi_softc *sc = ifp->if_softc; 1887 struct ieee80211com *ic = &sc->sc_ic; 1888 struct ifreq *ifr = (struct ifreq *)data; 1889 int s, error = 0; 1890 int val; 1891 1892 s = splnet(); 1893 1894 switch (cmd) { 1895 case SIOCSIFFLAGS: 1896 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1897 break; 1898 if (ifp->if_flags & IFF_UP) { 1899 if (!(ifp->if_flags & IFF_RUNNING)) 1900 iwi_init(ifp); 1901 } else { 1902 if (ifp->if_flags & IFF_RUNNING) 1903 iwi_stop(ifp, 1); 1904 } 1905 break; 1906 1907 case SIOCADDMULTI: 1908 case SIOCDELMULTI: 1909 /* XXX no h/w multicast filter? --dyoung */ 1910 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1911 /* setup multicast filter, etc */ 1912 error = 0; 1913 } 1914 break; 1915 1916 case SIOCGTABLE0: 1917 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1918 break; 1919 1920 case SIOCGRADIO: 1921 val = !iwi_getrfkill(sc); 1922 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1923 break; 1924 1925 case SIOCSIFMEDIA: 1926 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1927 sc->sc_fwname = "ipw2200-ibss.fw"; 1928 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1929 sc->sc_fwname = "ipw2200-sniffer.fw"; 1930 } else { 1931 sc->sc_fwname = "ipw2200-bss.fw"; 1932 } 1933 error = iwi_cache_firmware(sc); 1934 if (error) 1935 break; 1936 1937 /* FALLTHROUGH */ 1938 default: 1939 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1940 1941 if (error == ENETRESET) { 1942 if (IS_RUNNING(ifp) && 1943 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1944 iwi_init(ifp); 1945 error = 0; 1946 } 1947 } 1948 1949 splx(s); 1950 return error; 1951 #undef IS_RUNNING 1952 } 1953 1954 static void 1955 iwi_stop_master(struct iwi_softc *sc) 1956 { 1957 int ntries; 1958 1959 /* Disable interrupts */ 1960 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1961 1962 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1963 for (ntries = 0; ntries < 5; ntries++) { 1964 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1965 break; 1966 DELAY(10); 1967 } 1968 if (ntries == 5) 1969 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1970 1971 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1972 IWI_RST_PRINCETON_RESET); 1973 1974 sc->flags &= ~IWI_FLAG_FW_INITED; 1975 } 1976 1977 static int 1978 iwi_reset(struct iwi_softc *sc) 1979 { 1980 int i, ntries; 1981 1982 iwi_stop_master(sc); 1983 1984 /* Move adapter to D0 state */ 1985 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1986 IWI_CTL_INIT); 1987 1988 /* Initialize Phase-Locked Level (PLL) */ 1989 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1990 1991 /* Wait for clock stabilization */ 1992 for (ntries = 0; ntries < 1000; ntries++) { 1993 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1994 break; 1995 DELAY(200); 1996 } 1997 if (ntries == 1000) { 1998 aprint_error_dev(sc->sc_dev, 1999 "timeout waiting for clock stabilization\n"); 2000 return ETIMEDOUT; 2001 } 2002 2003 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2004 IWI_RST_SW_RESET); 2005 2006 DELAY(10); 2007 2008 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2009 IWI_CTL_INIT); 2010 2011 /* Clear NIC memory */ 2012 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2013 for (i = 0; i < 0xc000; i++) 2014 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2015 2016 return 0; 2017 } 2018 2019 static int 2020 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2021 { 2022 uint16_t *w; 2023 int ntries, i; 2024 2025 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2026 IWI_RST_STOP_MASTER); 2027 for (ntries = 0; ntries < 5; ntries++) { 2028 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2029 break; 2030 DELAY(10); 2031 } 2032 if (ntries == 5) { 2033 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2034 return ETIMEDOUT; 2035 } 2036 2037 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2038 DELAY(5000); 2039 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2040 ~IWI_RST_PRINCETON_RESET); 2041 DELAY(5000); 2042 MEM_WRITE_4(sc, 0x3000e0, 0); 2043 DELAY(1000); 2044 MEM_WRITE_4(sc, 0x300004, 1); 2045 DELAY(1000); 2046 MEM_WRITE_4(sc, 0x300004, 0); 2047 DELAY(1000); 2048 MEM_WRITE_1(sc, 0x200000, 0x00); 2049 MEM_WRITE_1(sc, 0x200000, 0x40); 2050 DELAY(1000); 2051 2052 /* Adapter is buggy, we must set the address for each word */ 2053 for (w = uc; size > 0; w++, size -= 2) 2054 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2055 2056 MEM_WRITE_1(sc, 0x200000, 0x00); 2057 MEM_WRITE_1(sc, 0x200000, 0x80); 2058 2059 /* Wait until we get a response in the uc queue */ 2060 for (ntries = 0; ntries < 100; ntries++) { 2061 if (MEM_READ_1(sc, 0x200000) & 1) 2062 break; 2063 DELAY(100); 2064 } 2065 if (ntries == 100) { 2066 aprint_error_dev(sc->sc_dev, 2067 "timeout waiting for ucode to initialize\n"); 2068 return ETIMEDOUT; 2069 } 2070 2071 /* Empty the uc queue or the firmware will not initialize properly */ 2072 for (i = 0; i < 7; i++) 2073 MEM_READ_4(sc, 0x200004); 2074 2075 MEM_WRITE_1(sc, 0x200000, 0x00); 2076 2077 return 0; 2078 } 2079 2080 /* macro to handle unaligned little endian data in firmware image */ 2081 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2082 static int 2083 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2084 { 2085 bus_dmamap_t map; 2086 u_char *p, *end; 2087 uint32_t sentinel, ctl, sum; 2088 uint32_t cs, sl, cd, cl; 2089 int ntries, nsegs, error; 2090 int sn; 2091 2092 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2093 2094 /* Create a DMA map for the firmware image */ 2095 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2096 BUS_DMA_NOWAIT, &map); 2097 if (error != 0) { 2098 aprint_error_dev(sc->sc_dev, 2099 "could not create firmware DMA map\n"); 2100 map = NULL; 2101 goto fail1; 2102 } 2103 2104 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2105 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2106 if (error != 0) { 2107 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2108 error); 2109 goto fail2; 2110 } 2111 2112 /* Make sure the adapter will get up-to-date values */ 2113 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2114 2115 /* Tell the adapter where the command blocks are stored */ 2116 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2117 2118 /* 2119 * Store command blocks into adapter's internal memory using register 2120 * indirections. The adapter will read the firmware image through DMA 2121 * using information stored in command blocks. 2122 */ 2123 p = fw; 2124 end = p + size; 2125 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2126 2127 sn = 0; 2128 sl = cl = 0; 2129 cs = cd = 0; 2130 while (p < end) { 2131 if (sl == 0) { 2132 cs = map->dm_segs[sn].ds_addr; 2133 sl = map->dm_segs[sn].ds_len; 2134 sn++; 2135 } 2136 if (cl == 0) { 2137 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2138 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2139 } 2140 while (sl > 0 && cl > 0) { 2141 int len = uimin(cl, sl); 2142 2143 sl -= len; 2144 cl -= len; 2145 p += len; 2146 2147 while (len > 0) { 2148 int mlen = uimin(len, IWI_CB_MAXDATALEN); 2149 2150 ctl = IWI_CB_DEFAULT_CTL | mlen; 2151 sum = ctl ^ cs ^ cd; 2152 2153 /* Write a command block */ 2154 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2155 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2156 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2157 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2158 2159 cs += mlen; 2160 cd += mlen; 2161 len -= mlen; 2162 } 2163 } 2164 } 2165 2166 /* Write a fictive final command block (sentinel) */ 2167 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2168 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2169 2170 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2171 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2172 2173 /* Tell the adapter to start processing command blocks */ 2174 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2175 2176 /* Wait until the adapter has processed all command blocks */ 2177 for (ntries = 0; ntries < 400; ntries++) { 2178 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2179 break; 2180 DELAY(100); 2181 } 2182 if (ntries == 400) { 2183 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2184 error = ETIMEDOUT; 2185 goto fail3; 2186 } 2187 2188 /* We're done with command blocks processing */ 2189 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2190 2191 /* Allow interrupts so we know when the firmware is inited */ 2192 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2193 2194 /* Tell the adapter to initialize the firmware */ 2195 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2196 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2197 IWI_CTL_ALLOW_STANDBY); 2198 2199 /* Wait at most one second for firmware initialization to complete */ 2200 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2201 aprint_error_dev(sc->sc_dev, 2202 "timeout waiting for firmware initialization to complete\n"); 2203 goto fail3; 2204 } 2205 2206 fail3: 2207 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2208 bus_dmamap_unload(sc->sc_dmat, map); 2209 fail2: 2210 if (map != NULL) 2211 bus_dmamap_destroy(sc->sc_dmat, map); 2212 2213 fail1: 2214 return error; 2215 } 2216 2217 /* 2218 * Store firmware into kernel memory so we can download it when we need to, 2219 * e.g when the adapter wakes up from suspend mode. 2220 */ 2221 static int 2222 iwi_cache_firmware(struct iwi_softc *sc) 2223 { 2224 struct iwi_firmware *kfw = &sc->fw; 2225 firmware_handle_t fwh; 2226 struct iwi_firmware_hdr *hdr; 2227 off_t size; 2228 char *fw; 2229 int error; 2230 2231 if (iwi_accept_eula == 0) { 2232 aprint_error_dev(sc->sc_dev, 2233 "EULA not accepted; please see the iwi(4) man page.\n"); 2234 return EPERM; 2235 } 2236 2237 iwi_free_firmware(sc); 2238 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2239 if (error != 0) { 2240 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2241 goto fail1; 2242 } 2243 2244 size = firmware_get_size(fwh); 2245 if (size < sizeof(struct iwi_firmware_hdr)) { 2246 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2247 sc->sc_fwname); 2248 error = EIO; 2249 goto fail1; 2250 } 2251 sc->sc_blobsize = size; 2252 2253 sc->sc_blob = firmware_malloc(size); 2254 if (sc->sc_blob == NULL) { 2255 error = ENOMEM; 2256 firmware_close(fwh); 2257 goto fail1; 2258 } 2259 2260 error = firmware_read(fwh, 0, sc->sc_blob, size); 2261 firmware_close(fwh); 2262 if (error != 0) 2263 goto fail2; 2264 2265 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2266 hdr->version = le32toh(hdr->version); 2267 hdr->bsize = le32toh(hdr->bsize); 2268 hdr->usize = le32toh(hdr->usize); 2269 hdr->fsize = le32toh(hdr->fsize); 2270 2271 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2272 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2273 sc->sc_fwname); 2274 error = EIO; 2275 goto fail2; 2276 } 2277 2278 DPRINTF(("firmware version = %d\n", hdr->version)); 2279 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2280 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2281 aprint_error_dev(sc->sc_dev, 2282 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2283 IWI_FW_GET_MAJOR(hdr->version), 2284 IWI_FW_GET_MINOR(hdr->version), 2285 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2286 error = EIO; 2287 goto fail2; 2288 } 2289 2290 kfw->boot_size = hdr->bsize; 2291 kfw->ucode_size = hdr->usize; 2292 kfw->main_size = hdr->fsize; 2293 2294 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2295 kfw->boot = fw; 2296 fw += kfw->boot_size; 2297 kfw->ucode = fw; 2298 fw += kfw->ucode_size; 2299 kfw->main = fw; 2300 2301 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2302 kfw->boot, kfw->ucode, kfw->main)); 2303 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2304 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2305 2306 sc->flags |= IWI_FLAG_FW_CACHED; 2307 2308 return 0; 2309 2310 2311 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2312 fail1: 2313 return error; 2314 } 2315 2316 static void 2317 iwi_free_firmware(struct iwi_softc *sc) 2318 { 2319 2320 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2321 return; 2322 2323 firmware_free(sc->sc_blob, sc->sc_blobsize); 2324 2325 sc->flags &= ~IWI_FLAG_FW_CACHED; 2326 } 2327 2328 static int 2329 iwi_config(struct iwi_softc *sc) 2330 { 2331 struct ieee80211com *ic = &sc->sc_ic; 2332 struct ifnet *ifp = &sc->sc_if; 2333 struct iwi_configuration config; 2334 struct iwi_rateset rs; 2335 struct iwi_txpower power; 2336 struct ieee80211_key *wk; 2337 struct iwi_wep_key wepkey; 2338 uint32_t data; 2339 int error, nchan, i; 2340 2341 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2342 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2343 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2344 IEEE80211_ADDR_LEN, 0); 2345 if (error != 0) 2346 return error; 2347 2348 memset(&config, 0, sizeof config); 2349 config.bluetooth_coexistence = sc->bluetooth; 2350 config.antenna = sc->antenna; 2351 config.silence_threshold = 0x1e; 2352 config.multicast_enabled = 1; 2353 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2354 config.disable_unicast_decryption = 1; 2355 config.disable_multicast_decryption = 1; 2356 DPRINTF(("Configuring adapter\n")); 2357 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2358 0); 2359 if (error != 0) 2360 return error; 2361 2362 data = htole32(IWI_POWER_MODE_CAM); 2363 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2364 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2365 if (error != 0) 2366 return error; 2367 2368 data = htole32(ic->ic_rtsthreshold); 2369 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2370 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2371 if (error != 0) 2372 return error; 2373 2374 data = htole32(ic->ic_fragthreshold); 2375 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2376 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2377 if (error != 0) 2378 return error; 2379 2380 /* 2381 * Set default Tx power for 802.11b/g and 802.11a channels. 2382 */ 2383 nchan = 0; 2384 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2385 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2386 continue; 2387 power.chan[nchan].chan = i; 2388 power.chan[nchan].power = IWI_TXPOWER_MAX; 2389 nchan++; 2390 } 2391 power.nchan = nchan; 2392 2393 power.mode = IWI_MODE_11G; 2394 DPRINTF(("Setting .11g channels tx power\n")); 2395 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2396 if (error != 0) 2397 return error; 2398 2399 power.mode = IWI_MODE_11B; 2400 DPRINTF(("Setting .11b channels tx power\n")); 2401 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2402 if (error != 0) 2403 return error; 2404 2405 nchan = 0; 2406 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2407 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2408 continue; 2409 power.chan[nchan].chan = i; 2410 power.chan[nchan].power = IWI_TXPOWER_MAX; 2411 nchan++; 2412 } 2413 power.nchan = nchan; 2414 2415 if (nchan > 0) { /* 2915ABG only */ 2416 power.mode = IWI_MODE_11A; 2417 DPRINTF(("Setting .11a channels tx power\n")); 2418 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2419 0); 2420 if (error != 0) 2421 return error; 2422 } 2423 2424 rs.mode = IWI_MODE_11G; 2425 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2426 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2427 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2428 rs.nrates); 2429 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2430 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2431 if (error != 0) 2432 return error; 2433 2434 rs.mode = IWI_MODE_11A; 2435 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2436 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2437 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2438 rs.nrates); 2439 DPRINTF(("Setting .11a 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 /* if we have a desired ESSID, set it now */ 2445 if (ic->ic_des_esslen != 0) { 2446 #ifdef IWI_DEBUG 2447 if (iwi_debug > 0) { 2448 printf("Setting desired ESSID to "); 2449 ieee80211_print_essid(ic->ic_des_essid, 2450 ic->ic_des_esslen); 2451 printf("\n"); 2452 } 2453 #endif 2454 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2455 ic->ic_des_esslen, 0); 2456 if (error != 0) 2457 return error; 2458 } 2459 2460 cprng_fast(&data, sizeof(data)); 2461 data = htole32(data); 2462 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2463 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2464 if (error != 0) 2465 return error; 2466 2467 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2468 /* XXX iwi_setwepkeys? */ 2469 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2470 wk = &ic->ic_crypto.cs_nw_keys[i]; 2471 2472 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2473 wepkey.idx = i; 2474 wepkey.len = wk->wk_keylen; 2475 memset(wepkey.key, 0, sizeof wepkey.key); 2476 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2477 DPRINTF(("Setting wep key index %u len %u\n", 2478 wepkey.idx, wepkey.len)); 2479 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2480 sizeof wepkey, 0); 2481 if (error != 0) 2482 return error; 2483 } 2484 } 2485 2486 /* Enable adapter */ 2487 DPRINTF(("Enabling adapter\n")); 2488 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2489 } 2490 2491 static int 2492 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2493 { 2494 struct ieee80211com *ic = &sc->sc_ic; 2495 struct iwi_scan_v2 scan; 2496 2497 (void)memset(&scan, 0, sizeof scan); 2498 2499 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2500 scan.channels[0] = 1 | 2501 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2502 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2503 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2504 2505 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2506 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2507 } 2508 2509 static int 2510 iwi_scan(struct iwi_softc *sc) 2511 { 2512 struct ieee80211com *ic = &sc->sc_ic; 2513 struct iwi_scan_v2 scan; 2514 uint32_t type; 2515 uint8_t *p; 2516 int i, count, idx; 2517 2518 (void)memset(&scan, 0, sizeof scan); 2519 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2520 htole16(sc->dwelltime); 2521 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2522 htole16(sc->dwelltime); 2523 2524 /* tell the firmware about the desired essid */ 2525 if (ic->ic_des_esslen) { 2526 int error; 2527 2528 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2529 __func__, ic->ic_des_essid)); 2530 2531 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2532 ic->ic_des_essid, ic->ic_des_esslen, 1); 2533 if (error) 2534 return error; 2535 2536 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2537 } else { 2538 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2539 } 2540 2541 p = &scan.channels[0]; 2542 count = idx = 0; 2543 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2544 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2545 isset(ic->ic_chan_active, i)) { 2546 *++p = i; 2547 count++; 2548 idx++; 2549 iwi_scan_type_set(scan, idx, type); 2550 } 2551 } 2552 if (count) { 2553 *(p - count) = IWI_CHAN_5GHZ | count; 2554 p++; 2555 } 2556 2557 count = 0; 2558 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2559 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2560 isset(ic->ic_chan_active, i)) { 2561 *++p = i; 2562 count++; 2563 idx++; 2564 iwi_scan_type_set(scan, idx, type); 2565 } 2566 } 2567 *(p - count) = IWI_CHAN_2GHZ | count; 2568 2569 DPRINTF(("Start scanning\n")); 2570 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2571 } 2572 2573 static int 2574 iwi_auth_and_assoc(struct iwi_softc *sc) 2575 { 2576 struct ieee80211com *ic = &sc->sc_ic; 2577 struct ieee80211_node *ni = ic->ic_bss; 2578 struct ifnet *ifp = &sc->sc_if; 2579 struct ieee80211_wme_info wme; 2580 struct iwi_configuration config; 2581 struct iwi_associate assoc; 2582 struct iwi_rateset rs; 2583 uint16_t capinfo; 2584 uint32_t data; 2585 int error; 2586 2587 memset(&config, 0, sizeof config); 2588 config.bluetooth_coexistence = sc->bluetooth; 2589 config.antenna = sc->antenna; 2590 config.multicast_enabled = 1; 2591 config.silence_threshold = 0x1e; 2592 if (ic->ic_curmode == IEEE80211_MODE_11G) 2593 config.use_protection = 1; 2594 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2595 config.disable_unicast_decryption = 1; 2596 config.disable_multicast_decryption = 1; 2597 2598 DPRINTF(("Configuring adapter\n")); 2599 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2600 sizeof config, 1); 2601 if (error != 0) 2602 return error; 2603 2604 #ifdef IWI_DEBUG 2605 if (iwi_debug > 0) { 2606 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2607 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2608 aprint_debug("\n"); 2609 } 2610 #endif 2611 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2612 if (error != 0) 2613 return error; 2614 2615 /* the rate set has already been "negotiated" */ 2616 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2617 IWI_MODE_11G; 2618 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2619 rs.nrates = ni->ni_rates.rs_nrates; 2620 2621 if (rs.nrates > IWI_RATESET_SIZE) { 2622 DPRINTF(("Truncating negotiated rate set from %u\n", 2623 rs.nrates)); 2624 rs.nrates = IWI_RATESET_SIZE; 2625 } 2626 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2627 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2628 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2629 if (error != 0) 2630 return error; 2631 2632 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2633 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2634 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2635 wme.wme_oui[0] = 0x00; 2636 wme.wme_oui[1] = 0x50; 2637 wme.wme_oui[2] = 0xf2; 2638 wme.wme_type = WME_OUI_TYPE; 2639 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2640 wme.wme_version = WME_VERSION; 2641 wme.wme_info = 0; 2642 2643 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2644 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2645 if (error != 0) 2646 return error; 2647 } 2648 2649 if (ic->ic_opt_ie != NULL) { 2650 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2651 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2652 ic->ic_opt_ie_len, 1); 2653 if (error != 0) 2654 return error; 2655 } 2656 data = htole32(ni->ni_rssi); 2657 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2658 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2659 if (error != 0) 2660 return error; 2661 2662 memset(&assoc, 0, sizeof assoc); 2663 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2664 assoc.mode = IWI_MODE_11A; 2665 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2666 assoc.mode = IWI_MODE_11G; 2667 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2668 assoc.mode = IWI_MODE_11B; 2669 2670 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2671 2672 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2673 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2674 2675 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2676 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2677 2678 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2679 assoc.policy |= htole16(IWI_POLICY_WME); 2680 if (ic->ic_flags & IEEE80211_F_WPA) 2681 assoc.policy |= htole16(IWI_POLICY_WPA); 2682 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2683 assoc.type = IWI_HC_IBSS_START; 2684 else 2685 assoc.type = IWI_HC_ASSOC; 2686 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2687 2688 if (ic->ic_opmode == IEEE80211_M_IBSS) 2689 capinfo = IEEE80211_CAPINFO_IBSS; 2690 else 2691 capinfo = IEEE80211_CAPINFO_ESS; 2692 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2693 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2694 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2695 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2696 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2697 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2698 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2699 assoc.capinfo = htole16(capinfo); 2700 2701 assoc.lintval = htole16(ic->ic_lintval); 2702 assoc.intval = htole16(ni->ni_intval); 2703 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2704 if (ic->ic_opmode == IEEE80211_M_IBSS) 2705 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2706 else 2707 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2708 2709 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2710 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2711 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2712 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2713 assoc.chan, le16toh(assoc.policy), assoc.auth, 2714 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2715 le16toh(assoc.intval))); 2716 2717 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2718 } 2719 2720 static int 2721 iwi_init(struct ifnet *ifp) 2722 { 2723 struct iwi_softc *sc = ifp->if_softc; 2724 struct ieee80211com *ic = &sc->sc_ic; 2725 struct iwi_firmware *fw = &sc->fw; 2726 int i, error; 2727 2728 /* exit immediately if firmware has not been ioctl'd */ 2729 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2730 if ((error = iwi_cache_firmware(sc)) != 0) { 2731 aprint_error_dev(sc->sc_dev, 2732 "could not cache the firmware\n"); 2733 goto fail; 2734 } 2735 } 2736 2737 iwi_stop(ifp, 0); 2738 2739 if ((error = iwi_reset(sc)) != 0) { 2740 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2741 goto fail; 2742 } 2743 2744 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2745 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2746 goto fail; 2747 } 2748 2749 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2750 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2751 goto fail; 2752 } 2753 2754 iwi_stop_master(sc); 2755 2756 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2757 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2758 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2759 2760 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2761 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2762 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2763 2764 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2765 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2766 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2767 2768 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2769 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2770 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2771 2772 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2773 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2774 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2775 2776 for (i = 0; i < sc->rxq.count; i++) 2777 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2778 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2779 2780 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2781 2782 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2783 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2784 goto fail; 2785 } 2786 2787 sc->flags |= IWI_FLAG_FW_INITED; 2788 2789 if ((error = iwi_config(sc)) != 0) { 2790 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2791 goto fail; 2792 } 2793 2794 ic->ic_state = IEEE80211_S_INIT; 2795 2796 ifp->if_flags &= ~IFF_OACTIVE; 2797 ifp->if_flags |= IFF_RUNNING; 2798 2799 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2800 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2801 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2802 } else 2803 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2804 2805 return 0; 2806 2807 fail: ifp->if_flags &= ~IFF_UP; 2808 iwi_stop(ifp, 0); 2809 2810 return error; 2811 } 2812 2813 2814 /* 2815 * Return whether or not the radio is enabled in hardware 2816 * (i.e. the rfkill switch is "off"). 2817 */ 2818 static int 2819 iwi_getrfkill(struct iwi_softc *sc) 2820 { 2821 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2822 } 2823 2824 static int 2825 iwi_sysctl_radio(SYSCTLFN_ARGS) 2826 { 2827 struct sysctlnode node; 2828 struct iwi_softc *sc; 2829 int val, error; 2830 2831 node = *rnode; 2832 sc = (struct iwi_softc *)node.sysctl_data; 2833 2834 val = !iwi_getrfkill(sc); 2835 2836 node.sysctl_data = &val; 2837 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2838 2839 if (error || newp == NULL) 2840 return error; 2841 2842 return 0; 2843 } 2844 2845 #ifdef IWI_DEBUG 2846 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2847 { 2848 int rc; 2849 const struct sysctlnode *rnode; 2850 const struct sysctlnode *cnode; 2851 2852 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2853 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2854 SYSCTL_DESCR("iwi global controls"), 2855 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2856 goto err; 2857 2858 /* control debugging printfs */ 2859 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2860 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2861 "debug", SYSCTL_DESCR("Enable debugging output"), 2862 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2863 goto err; 2864 2865 return; 2866 err: 2867 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2868 } 2869 2870 #endif /* IWI_DEBUG */ 2871 2872 /* 2873 * Add sysctl knobs. 2874 */ 2875 static void 2876 iwi_sysctlattach(struct iwi_softc *sc) 2877 { 2878 int rc; 2879 const struct sysctlnode *rnode; 2880 const struct sysctlnode *cnode; 2881 2882 struct sysctllog **clog = &sc->sc_sysctllog; 2883 2884 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2885 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2886 SYSCTL_DESCR("iwi controls and statistics"), 2887 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2888 goto err; 2889 2890 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2891 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2892 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2893 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2894 goto err; 2895 2896 sc->dwelltime = 100; 2897 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2898 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2899 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2900 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2901 goto err; 2902 2903 sc->bluetooth = 0; 2904 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2905 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2906 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2907 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2908 goto err; 2909 2910 sc->antenna = IWI_ANTENNA_AUTO; 2911 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2912 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2913 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2914 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2915 goto err; 2916 2917 return; 2918 err: 2919 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2920 } 2921 2922 static void 2923 iwi_stop(struct ifnet *ifp, int disable) 2924 { 2925 struct iwi_softc *sc = ifp->if_softc; 2926 struct ieee80211com *ic = &sc->sc_ic; 2927 2928 IWI_LED_OFF(sc); 2929 2930 iwi_stop_master(sc); 2931 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2932 2933 /* reset rings */ 2934 iwi_reset_cmd_ring(sc, &sc->cmdq); 2935 iwi_reset_tx_ring(sc, &sc->txq[0]); 2936 iwi_reset_tx_ring(sc, &sc->txq[1]); 2937 iwi_reset_tx_ring(sc, &sc->txq[2]); 2938 iwi_reset_tx_ring(sc, &sc->txq[3]); 2939 iwi_reset_rx_ring(sc, &sc->rxq); 2940 2941 ifp->if_timer = 0; 2942 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2943 2944 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2945 } 2946 2947 static void 2948 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2949 { 2950 uint32_t val; 2951 2952 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2953 2954 switch (sc->nictype) { 2955 case 1: 2956 /* special NIC type: reversed leds */ 2957 if (state == IWI_LED_ACTIVITY) { 2958 state &= ~IWI_LED_ACTIVITY; 2959 state |= IWI_LED_ASSOCIATED; 2960 } else if (state == IWI_LED_ASSOCIATED) { 2961 state &= ~IWI_LED_ASSOCIATED; 2962 state |= IWI_LED_ACTIVITY; 2963 } 2964 /* and ignore toggle effect */ 2965 val |= state; 2966 break; 2967 case 0: 2968 case 2: 2969 case 3: 2970 case 4: 2971 val = (toggle && (val & state)) ? val & ~state : val | state; 2972 break; 2973 default: 2974 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2975 sc->nictype); 2976 return; 2977 break; 2978 } 2979 2980 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2981 2982 return; 2983 } 2984 2985 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2986 { 2987 const struct sysctlnode *rnode; 2988 const struct sysctlnode *cnode; 2989 2990 sysctl_createv(NULL, 0, NULL, &rnode, 2991 CTLFLAG_PERMANENT, 2992 CTLTYPE_NODE, "iwi", 2993 NULL, 2994 NULL, 0, 2995 NULL, 0, 2996 CTL_HW, CTL_CREATE, CTL_EOL); 2997 2998 sysctl_createv(NULL, 0, &rnode, &cnode, 2999 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 3000 CTLTYPE_INT, "accept_eula", 3001 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 3002 NULL, 0, 3003 &iwi_accept_eula, sizeof(iwi_accept_eula), 3004 CTL_CREATE, CTL_EOL); 3005 } 3006