1 /* $NetBSD: if_iwi.c,v 1.114 2020/03/20 13:33:23 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 1.114 2020/03/20 13:33:23 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 int 168 iwi_match(device_t parent, cfdata_t match, void *aux) 169 { 170 struct pci_attach_args *pa = aux; 171 172 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 173 return 0; 174 175 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 176 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 177 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 178 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 179 return 1; 180 181 return 0; 182 } 183 184 /* Base Address Register */ 185 #define IWI_PCI_BAR0 0x10 186 187 static void 188 iwi_attach(device_t parent, device_t self, void *aux) 189 { 190 struct iwi_softc *sc = device_private(self); 191 struct ieee80211com *ic = &sc->sc_ic; 192 struct ifnet *ifp = &sc->sc_if; 193 struct pci_attach_args *pa = aux; 194 const char *intrstr; 195 bus_space_tag_t memt; 196 bus_space_handle_t memh; 197 pci_intr_handle_t ih; 198 pcireg_t data; 199 uint16_t val; 200 int error, i; 201 char intrbuf[PCI_INTRSTR_LEN]; 202 203 sc->sc_dev = self; 204 sc->sc_pct = pa->pa_pc; 205 sc->sc_pcitag = pa->pa_tag; 206 207 pci_aprint_devinfo(pa, NULL); 208 209 /* clear unit numbers allocated to IBSS */ 210 sc->sc_unr = 0; 211 212 /* power up chip */ 213 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 214 NULL)) && error != EOPNOTSUPP) { 215 aprint_error_dev(self, "cannot activate %d\n", error); 216 return; 217 } 218 219 /* clear device specific PCI configuration register 0x41 */ 220 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 221 data &= ~0x0000ff00; 222 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 223 224 225 /* enable bus-mastering */ 226 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 227 data |= PCI_COMMAND_MASTER_ENABLE; 228 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 229 230 /* map the register window */ 231 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 232 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 233 if (error != 0) { 234 aprint_error_dev(self, "could not map memory space\n"); 235 return; 236 } 237 238 sc->sc_st = memt; 239 sc->sc_sh = memh; 240 sc->sc_dmat = pa->pa_dmat; 241 242 /* disable interrupts */ 243 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 244 245 sc->sc_soft_ih = softint_establish(SOFTINT_NET, iwi_softintr, sc); 246 if (sc->sc_soft_ih == NULL) { 247 aprint_error_dev(self, "could not establish softint\n"); 248 return; 249 } 250 251 if (pci_intr_map(pa, &ih) != 0) { 252 softint_disestablish(sc->sc_soft_ih); 253 sc->sc_soft_ih = NULL; 254 aprint_error_dev(self, "could not map interrupt\n"); 255 return; 256 } 257 258 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 259 sc->sc_ih = pci_intr_establish_xname(sc->sc_pct, ih, IPL_NET, iwi_intr, 260 sc, device_xname(self)); 261 if (sc->sc_ih == NULL) { 262 softint_disestablish(sc->sc_soft_ih); 263 sc->sc_soft_ih = NULL; 264 aprint_error_dev(self, "could not establish interrupt"); 265 if (intrstr != NULL) 266 aprint_error(" at %s", intrstr); 267 aprint_error("\n"); 268 return; 269 } 270 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 271 272 if (iwi_reset(sc) != 0) { 273 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 274 softint_disestablish(sc->sc_soft_ih); 275 sc->sc_soft_ih = NULL; 276 aprint_error_dev(self, "could not reset adapter\n"); 277 return; 278 } 279 280 ic->ic_ifp = ifp; 281 ic->ic_wme.wme_update = iwi_wme_update; 282 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 283 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 284 ic->ic_state = IEEE80211_S_INIT; 285 286 sc->sc_fwname = "ipw2200-bss.fw"; 287 288 /* set device capabilities */ 289 ic->ic_caps = 290 IEEE80211_C_IBSS | /* IBSS mode supported */ 291 IEEE80211_C_MONITOR | /* monitor mode supported */ 292 IEEE80211_C_TXPMGT | /* tx power management */ 293 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 294 IEEE80211_C_SHSLOT | /* short slot time supported */ 295 IEEE80211_C_WPA | /* 802.11i */ 296 IEEE80211_C_WME; /* 802.11e */ 297 298 /* read MAC address from EEPROM */ 299 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 300 ic->ic_myaddr[0] = val & 0xff; 301 ic->ic_myaddr[1] = val >> 8; 302 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 303 ic->ic_myaddr[2] = val & 0xff; 304 ic->ic_myaddr[3] = val >> 8; 305 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 306 ic->ic_myaddr[4] = val & 0xff; 307 ic->ic_myaddr[5] = val >> 8; 308 309 aprint_verbose_dev(self, "802.11 address %s\n", 310 ether_sprintf(ic->ic_myaddr)); 311 312 /* read the NIC type from EEPROM */ 313 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 314 sc->nictype = val & 0xff; 315 316 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 317 318 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 319 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 320 /* set supported .11a rates (2915ABG only) */ 321 ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; 322 323 /* set supported .11a channels */ 324 for (i = 36; i <= 64; i += 4) { 325 ic->ic_channels[i].ic_freq = 326 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 327 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 328 } 329 for (i = 149; i <= 165; i += 4) { 330 ic->ic_channels[i].ic_freq = 331 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 332 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 333 } 334 } 335 336 /* set supported .11b and .11g rates */ 337 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 338 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 339 340 /* set supported .11b and .11g channels (1 through 14) */ 341 for (i = 1; i <= 14; i++) { 342 ic->ic_channels[i].ic_freq = 343 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 344 ic->ic_channels[i].ic_flags = 345 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 346 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 347 } 348 349 ifp->if_softc = sc; 350 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 351 ifp->if_init = iwi_init; 352 ifp->if_stop = iwi_stop; 353 ifp->if_ioctl = iwi_ioctl; 354 ifp->if_start = iwi_start; 355 ifp->if_watchdog = iwi_watchdog; 356 IFQ_SET_READY(&ifp->if_snd); 357 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 358 359 error = if_initialize(ifp); 360 if (error != 0) { 361 ifp->if_softc = NULL; /* For iwi_detach() */ 362 aprint_error_dev(sc->sc_dev, "if_initialize failed(%d)\n", 363 error); 364 goto fail; 365 } 366 ieee80211_ifattach(ic); 367 /* Use common softint-based if_input */ 368 ifp->if_percpuq = if_percpuq_create(ifp); 369 if_register(ifp); 370 371 /* override default methods */ 372 ic->ic_node_alloc = iwi_node_alloc; 373 sc->sc_node_free = ic->ic_node_free; 374 ic->ic_node_free = iwi_node_free; 375 /* override state transition machine */ 376 sc->sc_newstate = ic->ic_newstate; 377 ic->ic_newstate = iwi_newstate; 378 379 /* XXX media locking needs revisiting */ 380 mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 381 ieee80211_media_init_with_lock(ic, 382 iwi_media_change, iwi_media_status, &sc->sc_media_mtx); 383 384 /* 385 * Allocate rings. 386 */ 387 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 388 aprint_error_dev(self, "could not allocate command ring\n"); 389 goto fail; 390 } 391 392 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 393 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 394 if (error != 0) { 395 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 396 goto fail; 397 } 398 399 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 400 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 401 if (error != 0) { 402 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 403 goto fail; 404 } 405 406 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 407 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 408 if (error != 0) { 409 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 410 goto fail; 411 } 412 413 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 414 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 415 if (error != 0) { 416 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 417 goto fail; 418 } 419 420 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 421 aprint_error_dev(self, "could not allocate Rx ring\n"); 422 goto fail; 423 } 424 425 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 426 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 427 428 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 429 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 430 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 431 432 sc->sc_txtap_len = sizeof sc->sc_txtapu; 433 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 434 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 435 436 iwi_sysctlattach(sc); 437 438 if (pmf_device_register(self, NULL, NULL)) 439 pmf_class_network_register(self, ifp); 440 else 441 aprint_error_dev(self, "couldn't establish power handler\n"); 442 443 ieee80211_announce(ic); 444 445 return; 446 447 fail: iwi_detach(self, 0); 448 } 449 450 static int 451 iwi_detach(device_t self, int flags) 452 { 453 struct iwi_softc *sc = device_private(self); 454 struct ifnet *ifp = &sc->sc_if; 455 456 if (ifp->if_softc != NULL) { 457 pmf_device_deregister(self); 458 iwi_stop(ifp, 1); 459 iwi_free_firmware(sc); 460 ieee80211_ifdetach(&sc->sc_ic); 461 if_detach(ifp); 462 } 463 464 iwi_free_cmd_ring(sc, &sc->cmdq); 465 iwi_free_tx_ring(sc, &sc->txq[0]); 466 iwi_free_tx_ring(sc, &sc->txq[1]); 467 iwi_free_tx_ring(sc, &sc->txq[2]); 468 iwi_free_tx_ring(sc, &sc->txq[3]); 469 iwi_free_rx_ring(sc, &sc->rxq); 470 471 if (sc->sc_ih != NULL) { 472 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 473 sc->sc_ih = NULL; 474 } 475 476 if (sc->sc_soft_ih != NULL) { 477 softint_disestablish(sc->sc_soft_ih); 478 sc->sc_soft_ih = NULL; 479 } 480 481 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 482 483 return 0; 484 } 485 486 static int 487 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 488 int count) 489 { 490 int error, nsegs; 491 492 ring->count = count; 493 ring->queued = 0; 494 ring->cur = ring->next = 0; 495 496 /* 497 * Allocate and map command ring 498 */ 499 error = bus_dmamap_create(sc->sc_dmat, 500 IWI_CMD_DESC_SIZE * count, 1, 501 IWI_CMD_DESC_SIZE * count, 0, 502 BUS_DMA_NOWAIT, &ring->desc_map); 503 if (error != 0) { 504 aprint_error_dev(sc->sc_dev, 505 "could not create command ring DMA map\n"); 506 ring->desc_map = NULL; 507 goto fail; 508 } 509 510 error = bus_dmamem_alloc(sc->sc_dmat, 511 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 512 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 513 if (error != 0) { 514 aprint_error_dev(sc->sc_dev, 515 "could not allocate command ring DMA memory\n"); 516 goto fail; 517 } 518 519 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 520 IWI_CMD_DESC_SIZE * count, 521 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 522 if (error != 0) { 523 aprint_error_dev(sc->sc_dev, 524 "could not map command ring DMA memory\n"); 525 goto fail; 526 } 527 528 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 529 IWI_CMD_DESC_SIZE * count, NULL, 530 BUS_DMA_NOWAIT); 531 if (error != 0) { 532 aprint_error_dev(sc->sc_dev, 533 "could not load command ring DMA map\n"); 534 goto fail; 535 } 536 537 memset(sc->cmdq.desc, 0, 538 IWI_CMD_DESC_SIZE * count); 539 540 return 0; 541 542 fail: return error; 543 } 544 545 static void 546 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 547 { 548 int i; 549 550 for (i = ring->next; i != ring->cur;) { 551 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 552 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 553 BUS_DMASYNC_POSTWRITE); 554 555 wakeup(&ring->desc[i]); 556 i = (i + 1) % ring->count; 557 } 558 559 ring->queued = 0; 560 ring->cur = ring->next = 0; 561 } 562 563 static void 564 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 565 { 566 if (ring->desc_map != NULL) { 567 if (ring->desc != NULL) { 568 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 569 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 570 IWI_CMD_DESC_SIZE * ring->count); 571 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 572 } 573 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 574 } 575 } 576 577 static int 578 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 579 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 580 { 581 int i, error, nsegs; 582 583 ring->count = 0; 584 ring->queued = 0; 585 ring->cur = ring->next = 0; 586 ring->csr_ridx = csr_ridx; 587 ring->csr_widx = csr_widx; 588 589 /* 590 * Allocate and map Tx ring 591 */ 592 error = bus_dmamap_create(sc->sc_dmat, 593 IWI_TX_DESC_SIZE * count, 1, 594 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 595 &ring->desc_map); 596 if (error != 0) { 597 aprint_error_dev(sc->sc_dev, 598 "could not create tx ring DMA map\n"); 599 ring->desc_map = NULL; 600 goto fail; 601 } 602 603 error = bus_dmamem_alloc(sc->sc_dmat, 604 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 605 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 606 if (error != 0) { 607 aprint_error_dev(sc->sc_dev, 608 "could not allocate tx ring DMA memory\n"); 609 goto fail; 610 } 611 612 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 613 IWI_TX_DESC_SIZE * count, 614 (void **)&ring->desc, BUS_DMA_NOWAIT); 615 if (error != 0) { 616 aprint_error_dev(sc->sc_dev, 617 "could not map tx ring DMA memory\n"); 618 goto fail; 619 } 620 621 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 622 IWI_TX_DESC_SIZE * count, NULL, 623 BUS_DMA_NOWAIT); 624 if (error != 0) { 625 aprint_error_dev(sc->sc_dev, 626 "could not load tx ring DMA map\n"); 627 goto fail; 628 } 629 630 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 631 632 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 633 M_WAITOK | M_ZERO); 634 ring->count = count; 635 636 /* 637 * Allocate Tx buffers DMA maps 638 */ 639 for (i = 0; i < count; i++) { 640 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 641 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 642 if (error != 0) { 643 aprint_error_dev(sc->sc_dev, 644 "could not create tx buf DMA map"); 645 ring->data[i].map = NULL; 646 goto fail; 647 } 648 } 649 return 0; 650 651 fail: return error; 652 } 653 654 static void 655 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 656 { 657 struct iwi_tx_data *data; 658 int i; 659 660 for (i = 0; i < ring->count; i++) { 661 data = &ring->data[i]; 662 663 if (data->m != NULL) { 664 m_freem(data->m); 665 data->m = NULL; 666 } 667 668 if (data->map != NULL) { 669 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 670 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 671 bus_dmamap_unload(sc->sc_dmat, data->map); 672 } 673 674 if (data->ni != NULL) { 675 ieee80211_free_node(data->ni); 676 data->ni = NULL; 677 } 678 } 679 680 ring->queued = 0; 681 ring->cur = ring->next = 0; 682 } 683 684 static void 685 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 686 { 687 int i; 688 struct iwi_tx_data *data; 689 690 if (ring->desc_map != NULL) { 691 if (ring->desc != NULL) { 692 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 693 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 694 IWI_TX_DESC_SIZE * ring->count); 695 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 696 } 697 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 698 } 699 700 for (i = 0; i < ring->count; i++) { 701 data = &ring->data[i]; 702 703 if (data->m != NULL) { 704 m_freem(data->m); 705 } 706 707 if (data->map != NULL) { 708 bus_dmamap_unload(sc->sc_dmat, data->map); 709 bus_dmamap_destroy(sc->sc_dmat, data->map); 710 } 711 } 712 } 713 714 static int 715 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 716 { 717 int i, error; 718 719 ring->count = 0; 720 ring->cur = 0; 721 722 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 723 M_WAITOK | M_ZERO); 724 ring->count = count; 725 726 /* 727 * Allocate and map Rx buffers 728 */ 729 for (i = 0; i < count; i++) { 730 731 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 732 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 733 if (error != 0) { 734 aprint_error_dev(sc->sc_dev, 735 "could not create rx buf DMA map"); 736 ring->data[i].map = NULL; 737 goto fail; 738 } 739 740 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 741 error = ENOMEM; 742 goto fail; 743 } 744 745 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 746 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 747 if (error != 0) { 748 aprint_error_dev(sc->sc_dev, 749 "could not load rx buffer DMA map\n"); 750 goto fail; 751 } 752 753 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 754 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 755 } 756 757 return 0; 758 759 fail: return error; 760 } 761 762 static void 763 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 764 { 765 ring->cur = 0; 766 } 767 768 static void 769 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 770 { 771 int i; 772 struct iwi_rx_data *data; 773 774 for (i = 0; i < ring->count; i++) { 775 data = &ring->data[i]; 776 777 if (data->m != NULL) { 778 m_freem(data->m); 779 } 780 781 if (data->map != NULL) { 782 bus_dmamap_unload(sc->sc_dmat, data->map); 783 bus_dmamap_destroy(sc->sc_dmat, data->map); 784 } 785 786 } 787 } 788 789 static struct ieee80211_node * 790 iwi_node_alloc(struct ieee80211_node_table *nt) 791 { 792 struct iwi_node *in; 793 794 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 795 if (in == NULL) 796 return NULL; 797 798 in->in_station = -1; 799 800 return &in->in_node; 801 } 802 803 static int 804 iwi_alloc_unr(struct iwi_softc *sc) 805 { 806 int i; 807 808 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 809 if ((sc->sc_unr & (1 << i)) == 0) { 810 sc->sc_unr |= 1 << i; 811 return i; 812 } 813 814 return -1; 815 } 816 817 static void 818 iwi_free_unr(struct iwi_softc *sc, int r) 819 { 820 821 sc->sc_unr &= 1 << r; 822 } 823 824 static void 825 iwi_node_free(struct ieee80211_node *ni) 826 { 827 struct ieee80211com *ic = ni->ni_ic; 828 struct iwi_softc *sc = ic->ic_ifp->if_softc; 829 struct iwi_node *in = (struct iwi_node *)ni; 830 831 if (in->in_station != -1) 832 iwi_free_unr(sc, in->in_station); 833 834 sc->sc_node_free(ni); 835 } 836 837 static int 838 iwi_media_change(struct ifnet *ifp) 839 { 840 int error; 841 842 error = ieee80211_media_change(ifp); 843 if (error != ENETRESET) 844 return error; 845 846 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 847 iwi_init(ifp); 848 849 return 0; 850 } 851 852 /* 853 * Convert h/w rate code to IEEE rate code. 854 */ 855 static int 856 iwi_cvtrate(int iwirate) 857 { 858 switch (iwirate) { 859 case IWI_RATE_DS1: return 2; 860 case IWI_RATE_DS2: return 4; 861 case IWI_RATE_DS5: return 11; 862 case IWI_RATE_DS11: return 22; 863 case IWI_RATE_OFDM6: return 12; 864 case IWI_RATE_OFDM9: return 18; 865 case IWI_RATE_OFDM12: return 24; 866 case IWI_RATE_OFDM18: return 36; 867 case IWI_RATE_OFDM24: return 48; 868 case IWI_RATE_OFDM36: return 72; 869 case IWI_RATE_OFDM48: return 96; 870 case IWI_RATE_OFDM54: return 108; 871 } 872 return 0; 873 } 874 875 /* 876 * The firmware automatically adapts the transmit speed. We report its current 877 * value here. 878 */ 879 static void 880 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 881 { 882 struct iwi_softc *sc = ifp->if_softc; 883 struct ieee80211com *ic = &sc->sc_ic; 884 int rate; 885 886 imr->ifm_status = IFM_AVALID; 887 imr->ifm_active = IFM_IEEE80211; 888 if (ic->ic_state == IEEE80211_S_RUN) 889 imr->ifm_status |= IFM_ACTIVE; 890 891 /* read current transmission rate from adapter */ 892 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 893 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 894 895 switch (ic->ic_opmode) { 896 case IEEE80211_M_STA: 897 break; 898 899 case IEEE80211_M_IBSS: 900 imr->ifm_active |= IFM_IEEE80211_ADHOC; 901 break; 902 903 case IEEE80211_M_MONITOR: 904 imr->ifm_active |= IFM_IEEE80211_MONITOR; 905 break; 906 907 case IEEE80211_M_AHDEMO: 908 case IEEE80211_M_HOSTAP: 909 /* should not get there */ 910 break; 911 } 912 } 913 914 static int 915 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 916 { 917 struct iwi_softc *sc = ic->ic_ifp->if_softc; 918 919 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 920 ieee80211_state_name[ic->ic_state], 921 ieee80211_state_name[nstate], sc->flags)); 922 923 switch (nstate) { 924 case IEEE80211_S_SCAN: 925 if (sc->flags & IWI_FLAG_SCANNING) 926 break; 927 928 ieee80211_node_table_reset(&ic->ic_scan); 929 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 930 sc->flags |= IWI_FLAG_SCANNING; 931 /* blink the led while scanning */ 932 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 933 iwi_scan(sc); 934 break; 935 936 case IEEE80211_S_AUTH: 937 iwi_auth_and_assoc(sc); 938 break; 939 940 case IEEE80211_S_RUN: 941 if (ic->ic_opmode == IEEE80211_M_IBSS && 942 ic->ic_state == IEEE80211_S_SCAN) 943 iwi_auth_and_assoc(sc); 944 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 945 iwi_set_chan(sc, ic->ic_ibss_chan); 946 break; 947 case IEEE80211_S_ASSOC: 948 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 949 if (ic->ic_state == IEEE80211_S_AUTH) 950 break; 951 iwi_auth_and_assoc(sc); 952 break; 953 954 case IEEE80211_S_INIT: 955 sc->flags &= ~IWI_FLAG_SCANNING; 956 break; 957 } 958 959 return sc->sc_newstate(ic, nstate, arg); 960 } 961 962 /* 963 * WME parameters coming from IEEE 802.11e specification. These values are 964 * already declared in ieee80211_proto.c, but they are static so they can't 965 * be reused here. 966 */ 967 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 968 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 969 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 970 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 971 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 972 }; 973 974 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 975 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 976 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 977 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 978 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 979 }; 980 981 static int 982 iwi_wme_update(struct ieee80211com *ic) 983 { 984 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 985 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 986 struct iwi_softc *sc = ic->ic_ifp->if_softc; 987 struct iwi_wme_params wme[3]; 988 const struct wmeParams *wmep; 989 int ac; 990 991 /* 992 * We shall not override firmware default WME values if WME is not 993 * actually enabled. 994 */ 995 if (!(ic->ic_flags & IEEE80211_F_WME)) 996 return 0; 997 998 for (ac = 0; ac < WME_NUM_AC; ac++) { 999 /* set WME values for current operating mode */ 1000 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1001 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1002 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1003 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1004 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1005 wme[0].acm[ac] = wmep->wmep_acm; 1006 1007 /* set WME values for CCK modulation */ 1008 wmep = &iwi_wme_cck_params[ac]; 1009 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1010 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1011 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1012 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1013 wme[1].acm[ac] = wmep->wmep_acm; 1014 1015 /* set WME values for OFDM modulation */ 1016 wmep = &iwi_wme_ofdm_params[ac]; 1017 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1018 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1019 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1020 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1021 wme[2].acm[ac] = wmep->wmep_acm; 1022 } 1023 1024 DPRINTF(("Setting WME parameters\n")); 1025 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1026 #undef IWI_USEC 1027 #undef IWI_EXP2 1028 } 1029 1030 /* 1031 * Read 16 bits at address 'addr' from the serial EEPROM. 1032 */ 1033 static uint16_t 1034 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1035 { 1036 uint32_t tmp; 1037 uint16_t val; 1038 int n; 1039 1040 /* Clock C once before the first command */ 1041 IWI_EEPROM_CTL(sc, 0); 1042 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1043 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1045 1046 /* Write start bit (1) */ 1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1048 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1049 1050 /* Write READ opcode (10) */ 1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1054 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1055 1056 /* Write address A7-A0 */ 1057 for (n = 7; n >= 0; n--) { 1058 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1059 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1061 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1062 } 1063 1064 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1065 1066 /* Read data Q15-Q0 */ 1067 val = 0; 1068 for (n = 15; n >= 0; n--) { 1069 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1070 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1071 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1072 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1073 } 1074 1075 IWI_EEPROM_CTL(sc, 0); 1076 1077 /* Clear Chip Select and clock C */ 1078 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1079 IWI_EEPROM_CTL(sc, 0); 1080 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1081 1082 return val; 1083 } 1084 1085 /* 1086 * XXX: Hack to set the current channel to the value advertised in beacons or 1087 * probe responses. Only used during AP detection. 1088 */ 1089 static void 1090 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1091 { 1092 struct ieee80211_frame *wh; 1093 uint8_t subtype; 1094 uint8_t *frm, *efrm; 1095 1096 wh = mtod(m, struct ieee80211_frame *); 1097 1098 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1099 return; 1100 1101 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1102 1103 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1104 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1105 return; 1106 1107 frm = (uint8_t *)(wh + 1); 1108 efrm = mtod(m, uint8_t *) + m->m_len; 1109 1110 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1111 while (frm + 2 < efrm) { 1112 if (*frm == IEEE80211_ELEMID_DSPARMS) { 1113 #if IEEE80211_CHAN_MAX < 255 1114 if (frm[2] <= IEEE80211_CHAN_MAX) 1115 #endif 1116 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1117 } 1118 1119 frm += frm[1] + 2; 1120 } 1121 } 1122 1123 static struct mbuf * 1124 iwi_alloc_rx_buf(struct iwi_softc *sc) 1125 { 1126 struct mbuf *m; 1127 1128 MGETHDR(m, M_DONTWAIT, MT_DATA); 1129 if (m == NULL) { 1130 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1131 return NULL; 1132 } 1133 1134 MCLGET(m, M_DONTWAIT); 1135 if (!(m->m_flags & M_EXT)) { 1136 aprint_error_dev(sc->sc_dev, 1137 "could not allocate rx mbuf cluster\n"); 1138 m_freem(m); 1139 return NULL; 1140 } 1141 1142 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1143 return m; 1144 } 1145 1146 static void 1147 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1148 struct iwi_frame *frame) 1149 { 1150 struct ieee80211com *ic = &sc->sc_ic; 1151 struct ifnet *ifp = ic->ic_ifp; 1152 struct mbuf *m, *m_new; 1153 struct ieee80211_frame *wh; 1154 struct ieee80211_node *ni; 1155 int error, s; 1156 1157 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1158 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1159 1160 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1161 le16toh(frame->len) > MCLBYTES) { 1162 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1163 if_statinc(ifp, if_ierrors); 1164 return; 1165 } 1166 1167 /* 1168 * Try to allocate a new mbuf for this ring element and 1169 * load it before processing the current mbuf. If the ring 1170 * element cannot be reloaded, drop the received packet 1171 * and reuse the old mbuf. In the unlikely case that 1172 * the old mbuf can't be reloaded either, explicitly panic. 1173 * 1174 * XXX Reorganize buffer by moving elements from the logical 1175 * end of the ring to the front instead of dropping. 1176 */ 1177 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1178 if_statinc(ifp, if_ierrors); 1179 return; 1180 } 1181 1182 bus_dmamap_unload(sc->sc_dmat, data->map); 1183 1184 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1185 BUS_DMA_READ | BUS_DMA_NOWAIT); 1186 if (error != 0) { 1187 aprint_error_dev(sc->sc_dev, 1188 "could not load rx buf DMA map\n"); 1189 m_freem(m_new); 1190 if_statinc(ifp, if_ierrors); 1191 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1192 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1193 if (error) 1194 panic("%s: unable to remap rx buf", 1195 device_xname(sc->sc_dev)); 1196 return; 1197 } 1198 1199 /* 1200 * New mbuf successfully loaded, update RX ring and continue 1201 * processing. 1202 */ 1203 m = data->m; 1204 data->m = m_new; 1205 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1206 1207 /* Finalize mbuf */ 1208 m_set_rcvif(m, ifp); 1209 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1210 sizeof (struct iwi_frame) + le16toh(frame->len); 1211 1212 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1213 1214 s = splnet(); 1215 1216 if (ic->ic_state == IEEE80211_S_SCAN) 1217 iwi_fix_channel(ic, m); 1218 1219 if (sc->sc_drvbpf != NULL) { 1220 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1221 1222 tap->wr_flags = 0; 1223 tap->wr_rate = iwi_cvtrate(frame->rate); 1224 tap->wr_chan_freq = 1225 htole16(ic->ic_channels[frame->chan].ic_freq); 1226 tap->wr_chan_flags = 1227 htole16(ic->ic_channels[frame->chan].ic_flags); 1228 tap->wr_antsignal = frame->signal; 1229 tap->wr_antenna = frame->antenna; 1230 1231 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1232 } 1233 wh = mtod(m, struct ieee80211_frame *); 1234 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1235 1236 /* Send the frame to the upper layer */ 1237 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1238 1239 /* node is no longer needed */ 1240 ieee80211_free_node(ni); 1241 1242 splx(s); 1243 } 1244 1245 static void 1246 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1247 { 1248 struct ieee80211com *ic = &sc->sc_ic; 1249 struct iwi_notif_authentication *auth; 1250 struct iwi_notif_association *assoc; 1251 struct iwi_notif_beacon_state *beacon; 1252 int s; 1253 1254 switch (notif->type) { 1255 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1256 #ifdef IWI_DEBUG 1257 { 1258 struct iwi_notif_scan_channel *chan = 1259 (struct iwi_notif_scan_channel *)(notif + 1); 1260 1261 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1262 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1263 } 1264 #endif 1265 break; 1266 1267 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1268 #ifdef IWI_DEBUG 1269 { 1270 struct iwi_notif_scan_complete *scan = 1271 (struct iwi_notif_scan_complete *)(notif + 1); 1272 1273 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1274 scan->status)); 1275 } 1276 #endif 1277 1278 /* monitor mode uses scan to set the channel ... */ 1279 s = splnet(); 1280 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1281 sc->flags &= ~IWI_FLAG_SCANNING; 1282 ieee80211_end_scan(ic); 1283 } else 1284 iwi_set_chan(sc, ic->ic_ibss_chan); 1285 splx(s); 1286 break; 1287 1288 case IWI_NOTIF_TYPE_AUTHENTICATION: 1289 auth = (struct iwi_notif_authentication *)(notif + 1); 1290 1291 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1292 1293 switch (auth->state) { 1294 case IWI_AUTH_SUCCESS: 1295 s = splnet(); 1296 ieee80211_node_authorize(ic->ic_bss); 1297 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1298 splx(s); 1299 break; 1300 1301 case IWI_AUTH_FAIL: 1302 break; 1303 1304 case IWI_AUTH_SENT_1: 1305 case IWI_AUTH_RECV_2: 1306 case IWI_AUTH_SEQ1_PASS: 1307 break; 1308 1309 case IWI_AUTH_SEQ1_FAIL: 1310 break; 1311 1312 default: 1313 aprint_error_dev(sc->sc_dev, 1314 "unknown authentication state %u\n", auth->state); 1315 } 1316 break; 1317 1318 case IWI_NOTIF_TYPE_ASSOCIATION: 1319 assoc = (struct iwi_notif_association *)(notif + 1); 1320 1321 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1322 assoc->status)); 1323 1324 switch (assoc->state) { 1325 case IWI_AUTH_SUCCESS: 1326 /* re-association, do nothing */ 1327 break; 1328 1329 case IWI_ASSOC_SUCCESS: 1330 s = splnet(); 1331 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1332 splx(s); 1333 break; 1334 1335 case IWI_ASSOC_FAIL: 1336 s = splnet(); 1337 ieee80211_begin_scan(ic, 1); 1338 splx(s); 1339 break; 1340 1341 default: 1342 aprint_error_dev(sc->sc_dev, 1343 "unknown association state %u\n", assoc->state); 1344 } 1345 break; 1346 1347 case IWI_NOTIF_TYPE_BEACON: 1348 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1349 1350 if (beacon->state == IWI_BEACON_MISS) { 1351 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1352 device_xname(sc->sc_dev), le32toh(beacon->number))); 1353 } 1354 break; 1355 1356 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1357 case IWI_NOTIF_TYPE_LINK_QUALITY: 1358 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1359 case IWI_NOTIF_TYPE_CALIBRATION: 1360 case IWI_NOTIF_TYPE_NOISE: 1361 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1362 break; 1363 1364 default: 1365 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1366 device_xname(sc->sc_dev), notif->type, notif->flags, 1367 le16toh(notif->len))); 1368 } 1369 } 1370 1371 static void 1372 iwi_cmd_intr(struct iwi_softc *sc) 1373 { 1374 1375 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1376 1377 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1378 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1379 BUS_DMASYNC_POSTWRITE); 1380 1381 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1382 1383 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1384 1385 if (--sc->cmdq.queued > 0) { 1386 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1387 (sc->cmdq.next + 1) % sc->cmdq.count); 1388 } 1389 } 1390 1391 static void 1392 iwi_rx_intr(struct iwi_softc *sc) 1393 { 1394 struct iwi_rx_data *data; 1395 struct iwi_hdr *hdr; 1396 uint32_t hw; 1397 1398 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1399 1400 for (; sc->rxq.cur != hw;) { 1401 data = &sc->rxq.data[sc->rxq.cur]; 1402 1403 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1404 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1405 1406 hdr = mtod(data->m, struct iwi_hdr *); 1407 1408 switch (hdr->type) { 1409 case IWI_HDR_TYPE_FRAME: 1410 iwi_frame_intr(sc, data, sc->rxq.cur, 1411 (struct iwi_frame *)(hdr + 1)); 1412 break; 1413 1414 case IWI_HDR_TYPE_NOTIF: 1415 iwi_notification_intr(sc, 1416 (struct iwi_notif *)(hdr + 1)); 1417 break; 1418 1419 default: 1420 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1421 hdr->type); 1422 } 1423 1424 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1425 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1426 1427 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1428 1429 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1430 } 1431 1432 /* Tell the firmware what we have processed */ 1433 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1434 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1435 } 1436 1437 static void 1438 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1439 { 1440 struct ifnet *ifp = &sc->sc_if; 1441 struct iwi_tx_data *data; 1442 uint32_t hw; 1443 int s; 1444 1445 s = splnet(); 1446 1447 hw = CSR_READ_4(sc, txq->csr_ridx); 1448 1449 for (; txq->next != hw;) { 1450 data = &txq->data[txq->next]; 1451 1452 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1453 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1454 bus_dmamap_unload(sc->sc_dmat, data->map); 1455 m_freem(data->m); 1456 data->m = NULL; 1457 ieee80211_free_node(data->ni); 1458 data->ni = NULL; 1459 1460 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1461 1462 if_statinc(ifp, if_opackets); 1463 1464 txq->queued--; 1465 txq->next = (txq->next + 1) % txq->count; 1466 } 1467 1468 sc->sc_tx_timer = 0; 1469 1470 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1471 ifp->if_flags &= ~IFF_OACTIVE; 1472 1473 /* Call start() since some buffer descriptors have been released */ 1474 iwi_start(ifp); /* in softint */ 1475 } 1476 1477 splx(s); 1478 } 1479 1480 static int 1481 iwi_intr(void *arg) 1482 { 1483 struct iwi_softc *sc = arg; 1484 uint32_t r; 1485 1486 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1487 return 0; 1488 1489 /* Disable interrupts */ 1490 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1491 1492 softint_schedule(sc->sc_soft_ih); 1493 return 1; 1494 } 1495 1496 static void 1497 iwi_softintr(void *arg) 1498 { 1499 struct iwi_softc *sc = arg; 1500 uint32_t r; 1501 int s; 1502 1503 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1504 goto out; 1505 1506 /* Acknowledge interrupts */ 1507 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1508 1509 if (r & IWI_INTR_FATAL_ERROR) { 1510 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1511 s = splnet(); 1512 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1513 iwi_stop(&sc->sc_if, 1); 1514 splx(s); 1515 return; 1516 } 1517 1518 if (r & IWI_INTR_FW_INITED) { 1519 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1520 wakeup(sc); 1521 } 1522 1523 if (r & IWI_INTR_RADIO_OFF) { 1524 DPRINTF(("radio transmitter off\n")); 1525 s = splnet(); 1526 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1527 iwi_stop(&sc->sc_if, 1); 1528 splx(s); 1529 return; 1530 } 1531 1532 if (r & IWI_INTR_CMD_DONE) 1533 iwi_cmd_intr(sc); 1534 1535 if (r & IWI_INTR_TX1_DONE) 1536 iwi_tx_intr(sc, &sc->txq[0]); 1537 1538 if (r & IWI_INTR_TX2_DONE) 1539 iwi_tx_intr(sc, &sc->txq[1]); 1540 1541 if (r & IWI_INTR_TX3_DONE) 1542 iwi_tx_intr(sc, &sc->txq[2]); 1543 1544 if (r & IWI_INTR_TX4_DONE) 1545 iwi_tx_intr(sc, &sc->txq[3]); 1546 1547 if (r & IWI_INTR_RX_DONE) 1548 iwi_rx_intr(sc); 1549 1550 if (r & IWI_INTR_PARITY_ERROR) 1551 aprint_error_dev(sc->sc_dev, "parity error\n"); 1552 1553 out: 1554 /* Re-enable interrupts */ 1555 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1556 } 1557 1558 static int 1559 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1560 int async) 1561 { 1562 struct iwi_cmd_desc *desc; 1563 1564 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1565 1566 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1567 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1568 desc->type = type; 1569 desc->len = len; 1570 memcpy(desc->data, data, len); 1571 1572 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1573 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1574 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1575 1576 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1577 sc->cmdq.cur, type, len, async)); 1578 1579 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1580 1581 if (++sc->cmdq.queued == 1) 1582 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1583 1584 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1585 } 1586 1587 static void 1588 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1589 { 1590 struct iwi_ibssnode node; 1591 1592 /* write node information into NIC memory */ 1593 memset(&node, 0, sizeof node); 1594 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1595 1596 CSR_WRITE_REGION_1(sc, 1597 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1598 (uint8_t *)&node, sizeof node); 1599 } 1600 1601 static int 1602 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1603 int ac) 1604 { 1605 struct iwi_softc *sc = ifp->if_softc; 1606 struct ieee80211com *ic = &sc->sc_ic; 1607 struct iwi_node *in = (struct iwi_node *)ni; 1608 struct ieee80211_frame *wh; 1609 struct ieee80211_key *k; 1610 const struct chanAccParams *cap; 1611 struct iwi_tx_ring *txq = &sc->txq[ac]; 1612 struct iwi_tx_data *data; 1613 struct iwi_tx_desc *desc; 1614 struct mbuf *mnew; 1615 int error, hdrlen, i, noack = 0; 1616 1617 wh = mtod(m0, struct ieee80211_frame *); 1618 1619 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1620 hdrlen = sizeof (struct ieee80211_qosframe); 1621 cap = &ic->ic_wme.wme_chanParams; 1622 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1623 } else 1624 hdrlen = sizeof (struct ieee80211_frame); 1625 1626 /* 1627 * This is only used in IBSS mode where the firmware expect an index 1628 * in a h/w table instead of a destination address. 1629 */ 1630 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1631 in->in_station = iwi_alloc_unr(sc); 1632 1633 if (in->in_station == -1) { /* h/w table is full */ 1634 m_freem(m0); 1635 ieee80211_free_node(ni); 1636 if_statinc(ifp, if_oerrors); 1637 return 0; 1638 } 1639 iwi_write_ibssnode(sc, in); 1640 } 1641 1642 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1643 k = ieee80211_crypto_encap(ic, ni, m0); 1644 if (k == NULL) { 1645 m_freem(m0); 1646 return ENOBUFS; 1647 } 1648 1649 /* packet header may have moved, reset our local pointer */ 1650 wh = mtod(m0, struct ieee80211_frame *); 1651 } 1652 1653 if (sc->sc_drvbpf != NULL) { 1654 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1655 1656 tap->wt_flags = 0; 1657 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1658 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1659 1660 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0, BPF_D_OUT); 1661 } 1662 1663 data = &txq->data[txq->cur]; 1664 desc = &txq->desc[txq->cur]; 1665 1666 /* save and trim IEEE802.11 header */ 1667 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1668 m_adj(m0, hdrlen); 1669 1670 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1671 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1672 if (error != 0 && error != EFBIG) { 1673 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1674 error); 1675 m_freem(m0); 1676 return error; 1677 } 1678 if (error != 0) { 1679 /* too many fragments, linearize */ 1680 1681 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1682 if (mnew == NULL) { 1683 m_freem(m0); 1684 return ENOMEM; 1685 } 1686 1687 m_copy_pkthdr(mnew, m0); 1688 1689 /* If the data won't fit in the header, get a cluster */ 1690 if (m0->m_pkthdr.len > MHLEN) { 1691 MCLGET(mnew, M_DONTWAIT); 1692 if (!(mnew->m_flags & M_EXT)) { 1693 m_freem(m0); 1694 m_freem(mnew); 1695 return ENOMEM; 1696 } 1697 } 1698 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1699 m_freem(m0); 1700 mnew->m_len = mnew->m_pkthdr.len; 1701 m0 = mnew; 1702 1703 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1704 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1705 if (error != 0) { 1706 aprint_error_dev(sc->sc_dev, 1707 "could not map mbuf (error %d)\n", error); 1708 m_freem(m0); 1709 return error; 1710 } 1711 } 1712 1713 data->m = m0; 1714 data->ni = ni; 1715 1716 desc->hdr.type = IWI_HDR_TYPE_DATA; 1717 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1718 desc->station = 1719 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1720 desc->cmd = IWI_DATA_CMD_TX; 1721 desc->len = htole16(m0->m_pkthdr.len); 1722 desc->flags = 0; 1723 desc->xflags = 0; 1724 1725 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1726 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1727 1728 #if 0 1729 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1730 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1731 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1732 } else 1733 #endif 1734 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1735 1736 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1737 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1738 1739 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1740 desc->xflags |= IWI_DATA_XFLAG_QOS; 1741 1742 if (ic->ic_curmode == IEEE80211_MODE_11B) 1743 desc->xflags |= IWI_DATA_XFLAG_CCK; 1744 1745 desc->nseg = htole32(data->map->dm_nsegs); 1746 for (i = 0; i < data->map->dm_nsegs; i++) { 1747 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1748 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1749 } 1750 1751 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1752 txq->cur * IWI_TX_DESC_SIZE, 1753 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1754 1755 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1756 BUS_DMASYNC_PREWRITE); 1757 1758 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1759 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1760 1761 /* Inform firmware about this new packet */ 1762 txq->queued++; 1763 txq->cur = (txq->cur + 1) % txq->count; 1764 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1765 1766 return 0; 1767 } 1768 1769 static void 1770 iwi_start(struct ifnet *ifp) 1771 { 1772 struct iwi_softc *sc = ifp->if_softc; 1773 struct ieee80211com *ic = &sc->sc_ic; 1774 struct mbuf *m0; 1775 struct ether_header *eh; 1776 struct ieee80211_node *ni; 1777 int ac; 1778 1779 if (ic->ic_state != IEEE80211_S_RUN) 1780 return; 1781 1782 for (;;) { 1783 IFQ_DEQUEUE(&ifp->if_snd, m0); 1784 if (m0 == NULL) 1785 break; 1786 1787 if (m0->m_len < sizeof (struct ether_header) && 1788 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1789 if_statinc(ifp, if_oerrors); 1790 continue; 1791 } 1792 1793 eh = mtod(m0, struct ether_header *); 1794 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1795 if (ni == NULL) { 1796 m_freem(m0); 1797 if_statinc(ifp, if_oerrors); 1798 continue; 1799 } 1800 1801 /* classify mbuf so we can find which tx ring to use */ 1802 if (ieee80211_classify(ic, m0, ni) != 0) { 1803 m_freem(m0); 1804 ieee80211_free_node(ni); 1805 if_statinc(ifp, if_oerrors); 1806 continue; 1807 } 1808 1809 /* no QoS encapsulation for EAPOL frames */ 1810 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1811 M_WME_GETAC(m0) : WME_AC_BE; 1812 1813 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1814 /* there is no place left in this ring */ 1815 IFQ_LOCK(&ifp->if_snd); 1816 IF_PREPEND(&ifp->if_snd, m0); 1817 IFQ_UNLOCK(&ifp->if_snd); 1818 ifp->if_flags |= IFF_OACTIVE; 1819 break; 1820 } 1821 1822 bpf_mtap(ifp, m0, BPF_D_OUT); 1823 1824 m0 = ieee80211_encap(ic, m0, ni); 1825 if (m0 == NULL) { 1826 ieee80211_free_node(ni); 1827 if_statinc(ifp, if_oerrors); 1828 continue; 1829 } 1830 1831 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 1832 1833 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1834 ieee80211_free_node(ni); 1835 if_statinc(ifp, if_oerrors); 1836 break; 1837 } 1838 1839 /* start watchdog timer */ 1840 sc->sc_tx_timer = 5; 1841 ifp->if_timer = 1; 1842 } 1843 } 1844 1845 static void 1846 iwi_watchdog(struct ifnet *ifp) 1847 { 1848 struct iwi_softc *sc = ifp->if_softc; 1849 1850 ifp->if_timer = 0; 1851 1852 if (sc->sc_tx_timer > 0) { 1853 if (--sc->sc_tx_timer == 0) { 1854 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1855 if_statinc(ifp, if_oerrors); 1856 ifp->if_flags &= ~IFF_UP; 1857 iwi_stop(ifp, 1); 1858 return; 1859 } 1860 ifp->if_timer = 1; 1861 } 1862 1863 ieee80211_watchdog(&sc->sc_ic); 1864 } 1865 1866 static int 1867 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1868 { 1869 uint32_t size, buf[128]; 1870 1871 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1872 memset(buf, 0, sizeof buf); 1873 return copyout(buf, tbl, sizeof buf); 1874 } 1875 1876 size = uimin(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1877 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1878 1879 return copyout(buf, tbl, sizeof buf); 1880 } 1881 1882 static int 1883 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1884 { 1885 #define IS_RUNNING(ifp) \ 1886 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1887 1888 struct iwi_softc *sc = ifp->if_softc; 1889 struct ieee80211com *ic = &sc->sc_ic; 1890 struct ifreq *ifr = (struct ifreq *)data; 1891 int s, error = 0; 1892 int val; 1893 1894 s = splnet(); 1895 1896 switch (cmd) { 1897 case SIOCSIFFLAGS: 1898 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1899 break; 1900 if (ifp->if_flags & IFF_UP) { 1901 if (!(ifp->if_flags & IFF_RUNNING)) 1902 iwi_init(ifp); 1903 } else { 1904 if (ifp->if_flags & IFF_RUNNING) 1905 iwi_stop(ifp, 1); 1906 } 1907 break; 1908 1909 case SIOCADDMULTI: 1910 case SIOCDELMULTI: 1911 /* XXX no h/w multicast filter? --dyoung */ 1912 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1913 /* setup multicast filter, etc */ 1914 error = 0; 1915 } 1916 break; 1917 1918 case SIOCGTABLE0: 1919 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1920 break; 1921 1922 case SIOCGRADIO: 1923 val = !iwi_getrfkill(sc); 1924 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1925 break; 1926 1927 case SIOCSIFMEDIA: 1928 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1929 sc->sc_fwname = "ipw2200-ibss.fw"; 1930 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1931 sc->sc_fwname = "ipw2200-sniffer.fw"; 1932 } else { 1933 sc->sc_fwname = "ipw2200-bss.fw"; 1934 } 1935 error = iwi_cache_firmware(sc); 1936 if (error) 1937 break; 1938 1939 /* FALLTHROUGH */ 1940 default: 1941 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1942 1943 if (error == ENETRESET) { 1944 if (IS_RUNNING(ifp) && 1945 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1946 iwi_init(ifp); 1947 error = 0; 1948 } 1949 } 1950 1951 splx(s); 1952 return error; 1953 #undef IS_RUNNING 1954 } 1955 1956 static void 1957 iwi_stop_master(struct iwi_softc *sc) 1958 { 1959 int ntries; 1960 1961 /* Disable interrupts */ 1962 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1963 1964 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1965 for (ntries = 0; ntries < 5; ntries++) { 1966 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1967 break; 1968 DELAY(10); 1969 } 1970 if (ntries == 5) 1971 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1972 1973 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1974 IWI_RST_PRINCETON_RESET); 1975 1976 sc->flags &= ~IWI_FLAG_FW_INITED; 1977 } 1978 1979 static int 1980 iwi_reset(struct iwi_softc *sc) 1981 { 1982 int i, ntries; 1983 1984 iwi_stop_master(sc); 1985 1986 /* Move adapter to D0 state */ 1987 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1988 IWI_CTL_INIT); 1989 1990 /* Initialize Phase-Locked Level (PLL) */ 1991 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1992 1993 /* Wait for clock stabilization */ 1994 for (ntries = 0; ntries < 1000; ntries++) { 1995 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1996 break; 1997 DELAY(200); 1998 } 1999 if (ntries == 1000) { 2000 aprint_error_dev(sc->sc_dev, 2001 "timeout waiting for clock stabilization\n"); 2002 return ETIMEDOUT; 2003 } 2004 2005 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2006 IWI_RST_SW_RESET); 2007 2008 DELAY(10); 2009 2010 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2011 IWI_CTL_INIT); 2012 2013 /* Clear NIC memory */ 2014 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2015 for (i = 0; i < 0xc000; i++) 2016 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2017 2018 return 0; 2019 } 2020 2021 static int 2022 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2023 { 2024 uint16_t *w; 2025 int ntries, i; 2026 2027 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2028 IWI_RST_STOP_MASTER); 2029 for (ntries = 0; ntries < 5; ntries++) { 2030 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2031 break; 2032 DELAY(10); 2033 } 2034 if (ntries == 5) { 2035 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2036 return ETIMEDOUT; 2037 } 2038 2039 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2040 DELAY(5000); 2041 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2042 ~IWI_RST_PRINCETON_RESET); 2043 DELAY(5000); 2044 MEM_WRITE_4(sc, 0x3000e0, 0); 2045 DELAY(1000); 2046 MEM_WRITE_4(sc, 0x300004, 1); 2047 DELAY(1000); 2048 MEM_WRITE_4(sc, 0x300004, 0); 2049 DELAY(1000); 2050 MEM_WRITE_1(sc, 0x200000, 0x00); 2051 MEM_WRITE_1(sc, 0x200000, 0x40); 2052 DELAY(1000); 2053 2054 /* Adapter is buggy, we must set the address for each word */ 2055 for (w = uc; size > 0; w++, size -= 2) 2056 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2057 2058 MEM_WRITE_1(sc, 0x200000, 0x00); 2059 MEM_WRITE_1(sc, 0x200000, 0x80); 2060 2061 /* Wait until we get a response in the uc queue */ 2062 for (ntries = 0; ntries < 100; ntries++) { 2063 if (MEM_READ_1(sc, 0x200000) & 1) 2064 break; 2065 DELAY(100); 2066 } 2067 if (ntries == 100) { 2068 aprint_error_dev(sc->sc_dev, 2069 "timeout waiting for ucode to initialize\n"); 2070 return ETIMEDOUT; 2071 } 2072 2073 /* Empty the uc queue or the firmware will not initialize properly */ 2074 for (i = 0; i < 7; i++) 2075 MEM_READ_4(sc, 0x200004); 2076 2077 MEM_WRITE_1(sc, 0x200000, 0x00); 2078 2079 return 0; 2080 } 2081 2082 /* macro to handle unaligned little endian data in firmware image */ 2083 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2084 static int 2085 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2086 { 2087 bus_dmamap_t map; 2088 u_char *p, *end; 2089 uint32_t sentinel, ctl, sum; 2090 uint32_t cs, sl, cd, cl; 2091 int ntries, nsegs, error; 2092 int sn; 2093 2094 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2095 2096 /* Create a DMA map for the firmware image */ 2097 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2098 BUS_DMA_NOWAIT, &map); 2099 if (error != 0) { 2100 aprint_error_dev(sc->sc_dev, 2101 "could not create firmware DMA map\n"); 2102 map = NULL; 2103 goto fail1; 2104 } 2105 2106 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2107 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2108 if (error != 0) { 2109 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2110 error); 2111 goto fail2; 2112 } 2113 2114 /* Make sure the adapter will get up-to-date values */ 2115 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2116 2117 /* Tell the adapter where the command blocks are stored */ 2118 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2119 2120 /* 2121 * Store command blocks into adapter's internal memory using register 2122 * indirections. The adapter will read the firmware image through DMA 2123 * using information stored in command blocks. 2124 */ 2125 p = fw; 2126 end = p + size; 2127 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2128 2129 sn = 0; 2130 sl = cl = 0; 2131 cs = cd = 0; 2132 while (p < end) { 2133 if (sl == 0) { 2134 cs = map->dm_segs[sn].ds_addr; 2135 sl = map->dm_segs[sn].ds_len; 2136 sn++; 2137 } 2138 if (cl == 0) { 2139 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2140 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2141 } 2142 while (sl > 0 && cl > 0) { 2143 int len = uimin(cl, sl); 2144 2145 sl -= len; 2146 cl -= len; 2147 p += len; 2148 2149 while (len > 0) { 2150 int mlen = uimin(len, IWI_CB_MAXDATALEN); 2151 2152 ctl = IWI_CB_DEFAULT_CTL | mlen; 2153 sum = ctl ^ cs ^ cd; 2154 2155 /* Write a command block */ 2156 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2157 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2158 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2159 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2160 2161 cs += mlen; 2162 cd += mlen; 2163 len -= mlen; 2164 } 2165 } 2166 } 2167 2168 /* Write a fictive final command block (sentinel) */ 2169 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2170 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2171 2172 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2173 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2174 2175 /* Tell the adapter to start processing command blocks */ 2176 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2177 2178 /* Wait until the adapter has processed all command blocks */ 2179 for (ntries = 0; ntries < 400; ntries++) { 2180 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2181 break; 2182 DELAY(100); 2183 } 2184 if (ntries == 400) { 2185 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2186 error = ETIMEDOUT; 2187 goto fail3; 2188 } 2189 2190 /* We're done with command blocks processing */ 2191 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2192 2193 /* Allow interrupts so we know when the firmware is inited */ 2194 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2195 2196 /* Tell the adapter to initialize the firmware */ 2197 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2198 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2199 IWI_CTL_ALLOW_STANDBY); 2200 2201 /* Wait at most one second for firmware initialization to complete */ 2202 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2203 aprint_error_dev(sc->sc_dev, 2204 "timeout waiting for firmware initialization to complete\n"); 2205 goto fail3; 2206 } 2207 2208 fail3: 2209 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2210 bus_dmamap_unload(sc->sc_dmat, map); 2211 fail2: 2212 if (map != NULL) 2213 bus_dmamap_destroy(sc->sc_dmat, map); 2214 2215 fail1: 2216 return error; 2217 } 2218 2219 /* 2220 * Store firmware into kernel memory so we can download it when we need to, 2221 * e.g when the adapter wakes up from suspend mode. 2222 */ 2223 static int 2224 iwi_cache_firmware(struct iwi_softc *sc) 2225 { 2226 struct iwi_firmware *kfw = &sc->fw; 2227 firmware_handle_t fwh; 2228 struct iwi_firmware_hdr *hdr; 2229 off_t size; 2230 char *fw; 2231 int error; 2232 2233 if (iwi_accept_eula == 0) { 2234 aprint_error_dev(sc->sc_dev, 2235 "EULA not accepted; please see the iwi(4) man page.\n"); 2236 return EPERM; 2237 } 2238 2239 iwi_free_firmware(sc); 2240 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2241 if (error != 0) { 2242 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2243 goto fail1; 2244 } 2245 2246 size = firmware_get_size(fwh); 2247 if (size < sizeof(struct iwi_firmware_hdr)) { 2248 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2249 sc->sc_fwname); 2250 error = EIO; 2251 goto fail1; 2252 } 2253 sc->sc_blobsize = size; 2254 2255 sc->sc_blob = firmware_malloc(size); 2256 if (sc->sc_blob == NULL) { 2257 error = ENOMEM; 2258 firmware_close(fwh); 2259 goto fail1; 2260 } 2261 2262 error = firmware_read(fwh, 0, sc->sc_blob, size); 2263 firmware_close(fwh); 2264 if (error != 0) 2265 goto fail2; 2266 2267 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2268 hdr->version = le32toh(hdr->version); 2269 hdr->bsize = le32toh(hdr->bsize); 2270 hdr->usize = le32toh(hdr->usize); 2271 hdr->fsize = le32toh(hdr->fsize); 2272 2273 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2274 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2275 sc->sc_fwname); 2276 error = EIO; 2277 goto fail2; 2278 } 2279 2280 DPRINTF(("firmware version = %d\n", hdr->version)); 2281 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2282 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2283 aprint_error_dev(sc->sc_dev, 2284 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2285 IWI_FW_GET_MAJOR(hdr->version), 2286 IWI_FW_GET_MINOR(hdr->version), 2287 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2288 error = EIO; 2289 goto fail2; 2290 } 2291 2292 kfw->boot_size = hdr->bsize; 2293 kfw->ucode_size = hdr->usize; 2294 kfw->main_size = hdr->fsize; 2295 2296 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2297 kfw->boot = fw; 2298 fw += kfw->boot_size; 2299 kfw->ucode = fw; 2300 fw += kfw->ucode_size; 2301 kfw->main = fw; 2302 2303 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2304 kfw->boot, kfw->ucode, kfw->main)); 2305 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2306 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2307 2308 sc->flags |= IWI_FLAG_FW_CACHED; 2309 2310 return 0; 2311 2312 2313 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2314 fail1: 2315 return error; 2316 } 2317 2318 static void 2319 iwi_free_firmware(struct iwi_softc *sc) 2320 { 2321 2322 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2323 return; 2324 2325 firmware_free(sc->sc_blob, sc->sc_blobsize); 2326 2327 sc->flags &= ~IWI_FLAG_FW_CACHED; 2328 } 2329 2330 static int 2331 iwi_config(struct iwi_softc *sc) 2332 { 2333 struct ieee80211com *ic = &sc->sc_ic; 2334 struct ifnet *ifp = &sc->sc_if; 2335 struct iwi_configuration config; 2336 struct iwi_rateset rs; 2337 struct iwi_txpower power; 2338 struct ieee80211_key *wk; 2339 struct iwi_wep_key wepkey; 2340 uint32_t data; 2341 int error, nchan, i; 2342 2343 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2344 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2345 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2346 IEEE80211_ADDR_LEN, 0); 2347 if (error != 0) 2348 return error; 2349 2350 memset(&config, 0, sizeof config); 2351 config.bluetooth_coexistence = sc->bluetooth; 2352 config.antenna = sc->antenna; 2353 config.silence_threshold = 0x1e; 2354 config.multicast_enabled = 1; 2355 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2356 config.disable_unicast_decryption = 1; 2357 config.disable_multicast_decryption = 1; 2358 DPRINTF(("Configuring adapter\n")); 2359 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2360 0); 2361 if (error != 0) 2362 return error; 2363 2364 data = htole32(IWI_POWER_MODE_CAM); 2365 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2366 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2367 if (error != 0) 2368 return error; 2369 2370 data = htole32(ic->ic_rtsthreshold); 2371 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2372 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2373 if (error != 0) 2374 return error; 2375 2376 data = htole32(ic->ic_fragthreshold); 2377 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2378 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2379 if (error != 0) 2380 return error; 2381 2382 /* 2383 * Set default Tx power for 802.11b/g and 802.11a channels. 2384 */ 2385 nchan = 0; 2386 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2387 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2388 continue; 2389 power.chan[nchan].chan = i; 2390 power.chan[nchan].power = IWI_TXPOWER_MAX; 2391 nchan++; 2392 } 2393 power.nchan = nchan; 2394 2395 power.mode = IWI_MODE_11G; 2396 DPRINTF(("Setting .11g channels tx power\n")); 2397 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2398 if (error != 0) 2399 return error; 2400 2401 power.mode = IWI_MODE_11B; 2402 DPRINTF(("Setting .11b channels tx power\n")); 2403 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2404 if (error != 0) 2405 return error; 2406 2407 nchan = 0; 2408 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2409 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2410 continue; 2411 power.chan[nchan].chan = i; 2412 power.chan[nchan].power = IWI_TXPOWER_MAX; 2413 nchan++; 2414 } 2415 power.nchan = nchan; 2416 2417 if (nchan > 0) { /* 2915ABG only */ 2418 power.mode = IWI_MODE_11A; 2419 DPRINTF(("Setting .11a channels tx power\n")); 2420 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2421 0); 2422 if (error != 0) 2423 return error; 2424 } 2425 2426 rs.mode = IWI_MODE_11G; 2427 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2428 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2429 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2430 rs.nrates); 2431 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2432 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2433 if (error != 0) 2434 return error; 2435 2436 rs.mode = IWI_MODE_11A; 2437 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2438 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2439 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2440 rs.nrates); 2441 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2442 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2443 if (error != 0) 2444 return error; 2445 2446 /* if we have a desired ESSID, set it now */ 2447 if (ic->ic_des_esslen != 0) { 2448 #ifdef IWI_DEBUG 2449 if (iwi_debug > 0) { 2450 printf("Setting desired ESSID to "); 2451 ieee80211_print_essid(ic->ic_des_essid, 2452 ic->ic_des_esslen); 2453 printf("\n"); 2454 } 2455 #endif 2456 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2457 ic->ic_des_esslen, 0); 2458 if (error != 0) 2459 return error; 2460 } 2461 2462 cprng_fast(&data, sizeof(data)); 2463 data = htole32(data); 2464 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2465 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2466 if (error != 0) 2467 return error; 2468 2469 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2470 /* XXX iwi_setwepkeys? */ 2471 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2472 wk = &ic->ic_crypto.cs_nw_keys[i]; 2473 2474 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2475 wepkey.idx = i; 2476 wepkey.len = wk->wk_keylen; 2477 memset(wepkey.key, 0, sizeof wepkey.key); 2478 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2479 DPRINTF(("Setting wep key index %u len %u\n", 2480 wepkey.idx, wepkey.len)); 2481 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2482 sizeof wepkey, 0); 2483 if (error != 0) 2484 return error; 2485 } 2486 } 2487 2488 /* Enable adapter */ 2489 DPRINTF(("Enabling adapter\n")); 2490 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2491 } 2492 2493 static int 2494 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2495 { 2496 struct ieee80211com *ic = &sc->sc_ic; 2497 struct iwi_scan_v2 scan; 2498 2499 (void)memset(&scan, 0, sizeof scan); 2500 2501 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2502 scan.channels[0] = 1 | 2503 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2504 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2505 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2506 2507 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2508 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2509 } 2510 2511 static int 2512 iwi_scan(struct iwi_softc *sc) 2513 { 2514 struct ieee80211com *ic = &sc->sc_ic; 2515 struct iwi_scan_v2 scan; 2516 uint32_t type; 2517 uint8_t *p; 2518 int i, count, idx; 2519 2520 (void)memset(&scan, 0, sizeof scan); 2521 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2522 htole16(sc->dwelltime); 2523 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2524 htole16(sc->dwelltime); 2525 2526 /* tell the firmware about the desired essid */ 2527 if (ic->ic_des_esslen) { 2528 int error; 2529 2530 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2531 __func__, ic->ic_des_essid)); 2532 2533 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2534 ic->ic_des_essid, ic->ic_des_esslen, 1); 2535 if (error) 2536 return error; 2537 2538 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2539 } else { 2540 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2541 } 2542 2543 p = &scan.channels[0]; 2544 count = idx = 0; 2545 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2546 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2547 isset(ic->ic_chan_active, i)) { 2548 *++p = i; 2549 count++; 2550 idx++; 2551 iwi_scan_type_set(scan, idx, type); 2552 } 2553 } 2554 if (count) { 2555 *(p - count) = IWI_CHAN_5GHZ | count; 2556 p++; 2557 } 2558 2559 count = 0; 2560 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2561 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2562 isset(ic->ic_chan_active, i)) { 2563 *++p = i; 2564 count++; 2565 idx++; 2566 iwi_scan_type_set(scan, idx, type); 2567 } 2568 } 2569 *(p - count) = IWI_CHAN_2GHZ | count; 2570 2571 DPRINTF(("Start scanning\n")); 2572 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2573 } 2574 2575 static int 2576 iwi_auth_and_assoc(struct iwi_softc *sc) 2577 { 2578 struct ieee80211com *ic = &sc->sc_ic; 2579 struct ieee80211_node *ni = ic->ic_bss; 2580 struct ifnet *ifp = &sc->sc_if; 2581 struct ieee80211_wme_info wme; 2582 struct iwi_configuration config; 2583 struct iwi_associate assoc; 2584 struct iwi_rateset rs; 2585 uint16_t capinfo; 2586 uint32_t data; 2587 int error; 2588 2589 memset(&config, 0, sizeof config); 2590 config.bluetooth_coexistence = sc->bluetooth; 2591 config.antenna = sc->antenna; 2592 config.multicast_enabled = 1; 2593 config.silence_threshold = 0x1e; 2594 if (ic->ic_curmode == IEEE80211_MODE_11G) 2595 config.use_protection = 1; 2596 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2597 config.disable_unicast_decryption = 1; 2598 config.disable_multicast_decryption = 1; 2599 2600 DPRINTF(("Configuring adapter\n")); 2601 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2602 sizeof config, 1); 2603 if (error != 0) 2604 return error; 2605 2606 #ifdef IWI_DEBUG 2607 if (iwi_debug > 0) { 2608 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2609 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2610 aprint_debug("\n"); 2611 } 2612 #endif 2613 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2614 if (error != 0) 2615 return error; 2616 2617 /* the rate set has already been "negotiated" */ 2618 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2619 IWI_MODE_11G; 2620 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2621 rs.nrates = ni->ni_rates.rs_nrates; 2622 2623 if (rs.nrates > IWI_RATESET_SIZE) { 2624 DPRINTF(("Truncating negotiated rate set from %u\n", 2625 rs.nrates)); 2626 rs.nrates = IWI_RATESET_SIZE; 2627 } 2628 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2629 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2630 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2631 if (error != 0) 2632 return error; 2633 2634 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2635 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2636 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2637 wme.wme_oui[0] = 0x00; 2638 wme.wme_oui[1] = 0x50; 2639 wme.wme_oui[2] = 0xf2; 2640 wme.wme_type = WME_OUI_TYPE; 2641 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2642 wme.wme_version = WME_VERSION; 2643 wme.wme_info = 0; 2644 2645 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2646 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2647 if (error != 0) 2648 return error; 2649 } 2650 2651 if (ic->ic_opt_ie != NULL) { 2652 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2653 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2654 ic->ic_opt_ie_len, 1); 2655 if (error != 0) 2656 return error; 2657 } 2658 data = htole32(ni->ni_rssi); 2659 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2660 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2661 if (error != 0) 2662 return error; 2663 2664 memset(&assoc, 0, sizeof assoc); 2665 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2666 assoc.mode = IWI_MODE_11A; 2667 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2668 assoc.mode = IWI_MODE_11G; 2669 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2670 assoc.mode = IWI_MODE_11B; 2671 2672 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2673 2674 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2675 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2676 2677 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2678 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2679 2680 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2681 assoc.policy |= htole16(IWI_POLICY_WME); 2682 if (ic->ic_flags & IEEE80211_F_WPA) 2683 assoc.policy |= htole16(IWI_POLICY_WPA); 2684 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2685 assoc.type = IWI_HC_IBSS_START; 2686 else 2687 assoc.type = IWI_HC_ASSOC; 2688 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2689 2690 if (ic->ic_opmode == IEEE80211_M_IBSS) 2691 capinfo = IEEE80211_CAPINFO_IBSS; 2692 else 2693 capinfo = IEEE80211_CAPINFO_ESS; 2694 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2695 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2696 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2697 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2698 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2699 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2700 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2701 assoc.capinfo = htole16(capinfo); 2702 2703 assoc.lintval = htole16(ic->ic_lintval); 2704 assoc.intval = htole16(ni->ni_intval); 2705 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2706 if (ic->ic_opmode == IEEE80211_M_IBSS) 2707 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2708 else 2709 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2710 2711 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2712 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2713 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2714 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2715 assoc.chan, le16toh(assoc.policy), assoc.auth, 2716 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2717 le16toh(assoc.intval))); 2718 2719 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2720 } 2721 2722 static int 2723 iwi_init(struct ifnet *ifp) 2724 { 2725 struct iwi_softc *sc = ifp->if_softc; 2726 struct ieee80211com *ic = &sc->sc_ic; 2727 struct iwi_firmware *fw = &sc->fw; 2728 int i, error; 2729 2730 /* exit immediately if firmware has not been ioctl'd */ 2731 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2732 if ((error = iwi_cache_firmware(sc)) != 0) { 2733 aprint_error_dev(sc->sc_dev, 2734 "could not cache the firmware\n"); 2735 goto fail; 2736 } 2737 } 2738 2739 iwi_stop(ifp, 0); 2740 2741 if ((error = iwi_reset(sc)) != 0) { 2742 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2743 goto fail; 2744 } 2745 2746 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2747 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2748 goto fail; 2749 } 2750 2751 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2752 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2753 goto fail; 2754 } 2755 2756 iwi_stop_master(sc); 2757 2758 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2759 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2760 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2761 2762 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2763 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2764 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2765 2766 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2767 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2768 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2769 2770 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2771 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2772 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2773 2774 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2775 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2776 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2777 2778 for (i = 0; i < sc->rxq.count; i++) 2779 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2780 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2781 2782 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2783 2784 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2785 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2786 goto fail; 2787 } 2788 2789 sc->flags |= IWI_FLAG_FW_INITED; 2790 2791 if ((error = iwi_config(sc)) != 0) { 2792 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2793 goto fail; 2794 } 2795 2796 ic->ic_state = IEEE80211_S_INIT; 2797 2798 ifp->if_flags &= ~IFF_OACTIVE; 2799 ifp->if_flags |= IFF_RUNNING; 2800 2801 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2802 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2803 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2804 } else 2805 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2806 2807 return 0; 2808 2809 fail: ifp->if_flags &= ~IFF_UP; 2810 iwi_stop(ifp, 0); 2811 2812 return error; 2813 } 2814 2815 2816 /* 2817 * Return whether or not the radio is enabled in hardware 2818 * (i.e. the rfkill switch is "off"). 2819 */ 2820 static int 2821 iwi_getrfkill(struct iwi_softc *sc) 2822 { 2823 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2824 } 2825 2826 static int 2827 iwi_sysctl_radio(SYSCTLFN_ARGS) 2828 { 2829 struct sysctlnode node; 2830 struct iwi_softc *sc; 2831 int val, error; 2832 2833 node = *rnode; 2834 sc = (struct iwi_softc *)node.sysctl_data; 2835 2836 val = !iwi_getrfkill(sc); 2837 2838 node.sysctl_data = &val; 2839 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2840 2841 if (error || newp == NULL) 2842 return error; 2843 2844 return 0; 2845 } 2846 2847 #ifdef IWI_DEBUG 2848 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2849 { 2850 int rc; 2851 const struct sysctlnode *rnode; 2852 const struct sysctlnode *cnode; 2853 2854 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2855 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2856 SYSCTL_DESCR("iwi global controls"), 2857 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2858 goto err; 2859 2860 /* control debugging printfs */ 2861 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2862 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2863 "debug", SYSCTL_DESCR("Enable debugging output"), 2864 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2865 goto err; 2866 2867 return; 2868 err: 2869 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2870 } 2871 2872 #endif /* IWI_DEBUG */ 2873 2874 /* 2875 * Add sysctl knobs. 2876 */ 2877 static void 2878 iwi_sysctlattach(struct iwi_softc *sc) 2879 { 2880 int rc; 2881 const struct sysctlnode *rnode; 2882 const struct sysctlnode *cnode; 2883 2884 struct sysctllog **clog = &sc->sc_sysctllog; 2885 2886 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2887 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2888 SYSCTL_DESCR("iwi controls and statistics"), 2889 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2890 goto err; 2891 2892 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2893 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2894 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2895 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2896 goto err; 2897 2898 sc->dwelltime = 100; 2899 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2900 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2901 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2902 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2903 goto err; 2904 2905 sc->bluetooth = 0; 2906 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2907 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2908 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2909 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2910 goto err; 2911 2912 sc->antenna = IWI_ANTENNA_AUTO; 2913 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2914 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2915 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2916 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2917 goto err; 2918 2919 return; 2920 err: 2921 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2922 } 2923 2924 static void 2925 iwi_stop(struct ifnet *ifp, int disable) 2926 { 2927 struct iwi_softc *sc = ifp->if_softc; 2928 struct ieee80211com *ic = &sc->sc_ic; 2929 2930 IWI_LED_OFF(sc); 2931 2932 iwi_stop_master(sc); 2933 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2934 2935 /* reset rings */ 2936 iwi_reset_cmd_ring(sc, &sc->cmdq); 2937 iwi_reset_tx_ring(sc, &sc->txq[0]); 2938 iwi_reset_tx_ring(sc, &sc->txq[1]); 2939 iwi_reset_tx_ring(sc, &sc->txq[2]); 2940 iwi_reset_tx_ring(sc, &sc->txq[3]); 2941 iwi_reset_rx_ring(sc, &sc->rxq); 2942 2943 ifp->if_timer = 0; 2944 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2945 2946 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2947 } 2948 2949 static void 2950 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2951 { 2952 uint32_t val; 2953 2954 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2955 2956 switch (sc->nictype) { 2957 case 1: 2958 /* special NIC type: reversed leds */ 2959 if (state == IWI_LED_ACTIVITY) { 2960 state &= ~IWI_LED_ACTIVITY; 2961 state |= IWI_LED_ASSOCIATED; 2962 } else if (state == IWI_LED_ASSOCIATED) { 2963 state &= ~IWI_LED_ASSOCIATED; 2964 state |= IWI_LED_ACTIVITY; 2965 } 2966 /* and ignore toggle effect */ 2967 val |= state; 2968 break; 2969 case 0: 2970 case 2: 2971 case 3: 2972 case 4: 2973 val = (toggle && (val & state)) ? val & ~state : val | state; 2974 break; 2975 default: 2976 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2977 sc->nictype); 2978 return; 2979 break; 2980 } 2981 2982 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2983 2984 return; 2985 } 2986 2987 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2988 { 2989 const struct sysctlnode *rnode; 2990 const struct sysctlnode *cnode; 2991 2992 sysctl_createv(NULL, 0, NULL, &rnode, 2993 CTLFLAG_PERMANENT, 2994 CTLTYPE_NODE, "iwi", 2995 NULL, 2996 NULL, 0, 2997 NULL, 0, 2998 CTL_HW, CTL_CREATE, CTL_EOL); 2999 3000 sysctl_createv(NULL, 0, &rnode, &cnode, 3001 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 3002 CTLTYPE_INT, "accept_eula", 3003 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 3004 NULL, 0, 3005 &iwi_accept_eula, sizeof(iwi_accept_eula), 3006 CTL_CREATE, CTL_EOL); 3007 } 3008