1 /* $NetBSD: if_iwi.c,v 1.107 2018/06/26 06:48:01 msaitoh 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 1.107 2018/06/26 06:48:01 msaitoh 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(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 260 if (sc->sc_ih == NULL) { 261 softint_disestablish(sc->sc_soft_ih); 262 sc->sc_soft_ih = NULL; 263 aprint_error_dev(self, "could not establish interrupt"); 264 if (intrstr != NULL) 265 aprint_error(" at %s", intrstr); 266 aprint_error("\n"); 267 return; 268 } 269 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 270 271 if (iwi_reset(sc) != 0) { 272 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 273 softint_disestablish(sc->sc_soft_ih); 274 sc->sc_soft_ih = NULL; 275 aprint_error_dev(self, "could not reset adapter\n"); 276 return; 277 } 278 279 ic->ic_ifp = ifp; 280 ic->ic_wme.wme_update = iwi_wme_update; 281 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 282 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 283 ic->ic_state = IEEE80211_S_INIT; 284 285 sc->sc_fwname = "ipw2200-bss.fw"; 286 287 /* set device capabilities */ 288 ic->ic_caps = 289 IEEE80211_C_IBSS | /* IBSS mode supported */ 290 IEEE80211_C_MONITOR | /* monitor mode supported */ 291 IEEE80211_C_TXPMGT | /* tx power management */ 292 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 293 IEEE80211_C_SHSLOT | /* short slot time supported */ 294 IEEE80211_C_WPA | /* 802.11i */ 295 IEEE80211_C_WME; /* 802.11e */ 296 297 /* read MAC address from EEPROM */ 298 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 299 ic->ic_myaddr[0] = val & 0xff; 300 ic->ic_myaddr[1] = val >> 8; 301 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 302 ic->ic_myaddr[2] = val & 0xff; 303 ic->ic_myaddr[3] = val >> 8; 304 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 305 ic->ic_myaddr[4] = val & 0xff; 306 ic->ic_myaddr[5] = val >> 8; 307 308 aprint_verbose_dev(self, "802.11 address %s\n", 309 ether_sprintf(ic->ic_myaddr)); 310 311 /* read the NIC type from EEPROM */ 312 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 313 sc->nictype = val & 0xff; 314 315 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 316 317 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 318 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 319 /* set supported .11a rates (2915ABG only) */ 320 ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; 321 322 /* set supported .11a channels */ 323 for (i = 36; i <= 64; i += 4) { 324 ic->ic_channels[i].ic_freq = 325 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 326 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 327 } 328 for (i = 149; i <= 165; i += 4) { 329 ic->ic_channels[i].ic_freq = 330 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 331 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 332 } 333 } 334 335 /* set supported .11b and .11g rates */ 336 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 337 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 338 339 /* set supported .11b and .11g channels (1 through 14) */ 340 for (i = 1; i <= 14; i++) { 341 ic->ic_channels[i].ic_freq = 342 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 343 ic->ic_channels[i].ic_flags = 344 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 345 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 346 } 347 348 ifp->if_softc = sc; 349 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 350 ifp->if_init = iwi_init; 351 ifp->if_stop = iwi_stop; 352 ifp->if_ioctl = iwi_ioctl; 353 ifp->if_start = iwi_start; 354 ifp->if_watchdog = iwi_watchdog; 355 IFQ_SET_READY(&ifp->if_snd); 356 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 357 358 error = if_initialize(ifp); 359 if (error != 0) { 360 ifp->if_softc = NULL; /* For iwi_detach() */ 361 aprint_error_dev(sc->sc_dev, "if_initialize failed(%d)\n", 362 error); 363 goto fail; 364 } 365 ieee80211_ifattach(ic); 366 /* Use common softint-based if_input */ 367 ifp->if_percpuq = if_percpuq_create(ifp); 368 if_register(ifp); 369 370 /* override default methods */ 371 ic->ic_node_alloc = iwi_node_alloc; 372 sc->sc_node_free = ic->ic_node_free; 373 ic->ic_node_free = iwi_node_free; 374 /* override state transition machine */ 375 sc->sc_newstate = ic->ic_newstate; 376 ic->ic_newstate = iwi_newstate; 377 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 378 379 /* 380 * Allocate rings. 381 */ 382 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 383 aprint_error_dev(self, "could not allocate command ring\n"); 384 goto fail; 385 } 386 387 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 388 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 389 if (error != 0) { 390 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 391 goto fail; 392 } 393 394 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 395 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 396 if (error != 0) { 397 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 398 goto fail; 399 } 400 401 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 402 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 403 if (error != 0) { 404 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 405 goto fail; 406 } 407 408 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 409 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 410 if (error != 0) { 411 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 412 goto fail; 413 } 414 415 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 416 aprint_error_dev(self, "could not allocate Rx ring\n"); 417 goto fail; 418 } 419 420 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 421 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 422 423 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 424 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 425 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 426 427 sc->sc_txtap_len = sizeof sc->sc_txtapu; 428 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 429 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 430 431 iwi_sysctlattach(sc); 432 433 if (pmf_device_register(self, NULL, NULL)) 434 pmf_class_network_register(self, ifp); 435 else 436 aprint_error_dev(self, "couldn't establish power handler\n"); 437 438 ieee80211_announce(ic); 439 440 return; 441 442 fail: iwi_detach(self, 0); 443 } 444 445 static int 446 iwi_detach(device_t self, int flags) 447 { 448 struct iwi_softc *sc = device_private(self); 449 struct ifnet *ifp = &sc->sc_if; 450 451 if (ifp->if_softc != NULL) { 452 pmf_device_deregister(self); 453 iwi_stop(ifp, 1); 454 iwi_free_firmware(sc); 455 ieee80211_ifdetach(&sc->sc_ic); 456 if_detach(ifp); 457 } 458 459 iwi_free_cmd_ring(sc, &sc->cmdq); 460 iwi_free_tx_ring(sc, &sc->txq[0]); 461 iwi_free_tx_ring(sc, &sc->txq[1]); 462 iwi_free_tx_ring(sc, &sc->txq[2]); 463 iwi_free_tx_ring(sc, &sc->txq[3]); 464 iwi_free_rx_ring(sc, &sc->rxq); 465 466 if (sc->sc_ih != NULL) { 467 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 468 sc->sc_ih = NULL; 469 } 470 471 if (sc->sc_soft_ih != NULL) { 472 softint_disestablish(sc->sc_soft_ih); 473 sc->sc_soft_ih = NULL; 474 } 475 476 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 477 478 return 0; 479 } 480 481 static int 482 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 483 int count) 484 { 485 int error, nsegs; 486 487 ring->count = count; 488 ring->queued = 0; 489 ring->cur = ring->next = 0; 490 491 /* 492 * Allocate and map command ring 493 */ 494 error = bus_dmamap_create(sc->sc_dmat, 495 IWI_CMD_DESC_SIZE * count, 1, 496 IWI_CMD_DESC_SIZE * count, 0, 497 BUS_DMA_NOWAIT, &ring->desc_map); 498 if (error != 0) { 499 aprint_error_dev(sc->sc_dev, 500 "could not create command ring DMA map\n"); 501 ring->desc_map = NULL; 502 goto fail; 503 } 504 505 error = bus_dmamem_alloc(sc->sc_dmat, 506 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 507 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 508 if (error != 0) { 509 aprint_error_dev(sc->sc_dev, 510 "could not allocate command ring DMA memory\n"); 511 goto fail; 512 } 513 514 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 515 IWI_CMD_DESC_SIZE * count, 516 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 517 if (error != 0) { 518 aprint_error_dev(sc->sc_dev, 519 "could not map command ring DMA memory\n"); 520 goto fail; 521 } 522 523 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 524 IWI_CMD_DESC_SIZE * count, NULL, 525 BUS_DMA_NOWAIT); 526 if (error != 0) { 527 aprint_error_dev(sc->sc_dev, 528 "could not load command ring DMA map\n"); 529 goto fail; 530 } 531 532 memset(sc->cmdq.desc, 0, 533 IWI_CMD_DESC_SIZE * count); 534 535 return 0; 536 537 fail: return error; 538 } 539 540 static void 541 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 542 { 543 int i; 544 545 for (i = ring->next; i != ring->cur;) { 546 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 547 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 548 BUS_DMASYNC_POSTWRITE); 549 550 wakeup(&ring->desc[i]); 551 i = (i + 1) % ring->count; 552 } 553 554 ring->queued = 0; 555 ring->cur = ring->next = 0; 556 } 557 558 static void 559 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 560 { 561 if (ring->desc_map != NULL) { 562 if (ring->desc != NULL) { 563 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 564 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 565 IWI_CMD_DESC_SIZE * ring->count); 566 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 567 } 568 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 569 } 570 } 571 572 static int 573 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 574 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 575 { 576 int i, error, nsegs; 577 578 ring->count = 0; 579 ring->queued = 0; 580 ring->cur = ring->next = 0; 581 ring->csr_ridx = csr_ridx; 582 ring->csr_widx = csr_widx; 583 584 /* 585 * Allocate and map Tx ring 586 */ 587 error = bus_dmamap_create(sc->sc_dmat, 588 IWI_TX_DESC_SIZE * count, 1, 589 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 590 &ring->desc_map); 591 if (error != 0) { 592 aprint_error_dev(sc->sc_dev, 593 "could not create tx ring DMA map\n"); 594 ring->desc_map = NULL; 595 goto fail; 596 } 597 598 error = bus_dmamem_alloc(sc->sc_dmat, 599 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 600 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 601 if (error != 0) { 602 aprint_error_dev(sc->sc_dev, 603 "could not allocate tx ring DMA memory\n"); 604 goto fail; 605 } 606 607 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 608 IWI_TX_DESC_SIZE * count, 609 (void **)&ring->desc, BUS_DMA_NOWAIT); 610 if (error != 0) { 611 aprint_error_dev(sc->sc_dev, 612 "could not map tx ring DMA memory\n"); 613 goto fail; 614 } 615 616 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 617 IWI_TX_DESC_SIZE * count, NULL, 618 BUS_DMA_NOWAIT); 619 if (error != 0) { 620 aprint_error_dev(sc->sc_dev, 621 "could not load tx ring DMA map\n"); 622 goto fail; 623 } 624 625 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 626 627 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 628 M_NOWAIT | M_ZERO); 629 if (ring->data == NULL) { 630 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 631 error = ENOMEM; 632 goto fail; 633 } 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_NOWAIT | M_ZERO); 724 if (ring->data == NULL) { 725 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 726 error = ENOMEM; 727 goto fail; 728 } 729 730 ring->count = count; 731 732 /* 733 * Allocate and map Rx buffers 734 */ 735 for (i = 0; i < count; i++) { 736 737 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 738 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 739 if (error != 0) { 740 aprint_error_dev(sc->sc_dev, 741 "could not create rx buf DMA map"); 742 ring->data[i].map = NULL; 743 goto fail; 744 } 745 746 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 747 error = ENOMEM; 748 goto fail; 749 } 750 751 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 752 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 753 if (error != 0) { 754 aprint_error_dev(sc->sc_dev, 755 "could not load rx buffer DMA map\n"); 756 goto fail; 757 } 758 759 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 760 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 761 } 762 763 return 0; 764 765 fail: return error; 766 } 767 768 static void 769 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 770 { 771 ring->cur = 0; 772 } 773 774 static void 775 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 776 { 777 int i; 778 struct iwi_rx_data *data; 779 780 for (i = 0; i < ring->count; i++) { 781 data = &ring->data[i]; 782 783 if (data->m != NULL) { 784 m_freem(data->m); 785 } 786 787 if (data->map != NULL) { 788 bus_dmamap_unload(sc->sc_dmat, data->map); 789 bus_dmamap_destroy(sc->sc_dmat, data->map); 790 } 791 792 } 793 } 794 795 static struct ieee80211_node * 796 iwi_node_alloc(struct ieee80211_node_table *nt) 797 { 798 struct iwi_node *in; 799 800 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 801 if (in == NULL) 802 return NULL; 803 804 in->in_station = -1; 805 806 return &in->in_node; 807 } 808 809 static int 810 iwi_alloc_unr(struct iwi_softc *sc) 811 { 812 int i; 813 814 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 815 if ((sc->sc_unr & (1 << i)) == 0) { 816 sc->sc_unr |= 1 << i; 817 return i; 818 } 819 820 return -1; 821 } 822 823 static void 824 iwi_free_unr(struct iwi_softc *sc, int r) 825 { 826 827 sc->sc_unr &= 1 << r; 828 } 829 830 static void 831 iwi_node_free(struct ieee80211_node *ni) 832 { 833 struct ieee80211com *ic = ni->ni_ic; 834 struct iwi_softc *sc = ic->ic_ifp->if_softc; 835 struct iwi_node *in = (struct iwi_node *)ni; 836 837 if (in->in_station != -1) 838 iwi_free_unr(sc, in->in_station); 839 840 sc->sc_node_free(ni); 841 } 842 843 static int 844 iwi_media_change(struct ifnet *ifp) 845 { 846 int error; 847 848 error = ieee80211_media_change(ifp); 849 if (error != ENETRESET) 850 return error; 851 852 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 853 iwi_init(ifp); 854 855 return 0; 856 } 857 858 /* 859 * Convert h/w rate code to IEEE rate code. 860 */ 861 static int 862 iwi_cvtrate(int iwirate) 863 { 864 switch (iwirate) { 865 case IWI_RATE_DS1: return 2; 866 case IWI_RATE_DS2: return 4; 867 case IWI_RATE_DS5: return 11; 868 case IWI_RATE_DS11: return 22; 869 case IWI_RATE_OFDM6: return 12; 870 case IWI_RATE_OFDM9: return 18; 871 case IWI_RATE_OFDM12: return 24; 872 case IWI_RATE_OFDM18: return 36; 873 case IWI_RATE_OFDM24: return 48; 874 case IWI_RATE_OFDM36: return 72; 875 case IWI_RATE_OFDM48: return 96; 876 case IWI_RATE_OFDM54: return 108; 877 } 878 return 0; 879 } 880 881 /* 882 * The firmware automatically adapts the transmit speed. We report its current 883 * value here. 884 */ 885 static void 886 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 887 { 888 struct iwi_softc *sc = ifp->if_softc; 889 struct ieee80211com *ic = &sc->sc_ic; 890 int rate; 891 892 imr->ifm_status = IFM_AVALID; 893 imr->ifm_active = IFM_IEEE80211; 894 if (ic->ic_state == IEEE80211_S_RUN) 895 imr->ifm_status |= IFM_ACTIVE; 896 897 /* read current transmission rate from adapter */ 898 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 899 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 900 901 switch (ic->ic_opmode) { 902 case IEEE80211_M_STA: 903 break; 904 905 case IEEE80211_M_IBSS: 906 imr->ifm_active |= IFM_IEEE80211_ADHOC; 907 break; 908 909 case IEEE80211_M_MONITOR: 910 imr->ifm_active |= IFM_IEEE80211_MONITOR; 911 break; 912 913 case IEEE80211_M_AHDEMO: 914 case IEEE80211_M_HOSTAP: 915 /* should not get there */ 916 break; 917 } 918 } 919 920 static int 921 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 922 { 923 struct iwi_softc *sc = ic->ic_ifp->if_softc; 924 925 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 926 ieee80211_state_name[ic->ic_state], 927 ieee80211_state_name[nstate], sc->flags)); 928 929 switch (nstate) { 930 case IEEE80211_S_SCAN: 931 if (sc->flags & IWI_FLAG_SCANNING) 932 break; 933 934 ieee80211_node_table_reset(&ic->ic_scan); 935 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 936 sc->flags |= IWI_FLAG_SCANNING; 937 /* blink the led while scanning */ 938 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 939 iwi_scan(sc); 940 break; 941 942 case IEEE80211_S_AUTH: 943 iwi_auth_and_assoc(sc); 944 break; 945 946 case IEEE80211_S_RUN: 947 if (ic->ic_opmode == IEEE80211_M_IBSS && 948 ic->ic_state == IEEE80211_S_SCAN) 949 iwi_auth_and_assoc(sc); 950 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 951 iwi_set_chan(sc, ic->ic_ibss_chan); 952 break; 953 case IEEE80211_S_ASSOC: 954 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 955 if (ic->ic_state == IEEE80211_S_AUTH) 956 break; 957 iwi_auth_and_assoc(sc); 958 break; 959 960 case IEEE80211_S_INIT: 961 sc->flags &= ~IWI_FLAG_SCANNING; 962 break; 963 } 964 965 return sc->sc_newstate(ic, nstate, arg); 966 } 967 968 /* 969 * WME parameters coming from IEEE 802.11e specification. These values are 970 * already declared in ieee80211_proto.c, but they are static so they can't 971 * be reused here. 972 */ 973 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 974 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 975 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 976 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 977 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 978 }; 979 980 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 981 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 982 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 983 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 984 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 985 }; 986 987 static int 988 iwi_wme_update(struct ieee80211com *ic) 989 { 990 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 991 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 992 struct iwi_softc *sc = ic->ic_ifp->if_softc; 993 struct iwi_wme_params wme[3]; 994 const struct wmeParams *wmep; 995 int ac; 996 997 /* 998 * We shall not override firmware default WME values if WME is not 999 * actually enabled. 1000 */ 1001 if (!(ic->ic_flags & IEEE80211_F_WME)) 1002 return 0; 1003 1004 for (ac = 0; ac < WME_NUM_AC; ac++) { 1005 /* set WME values for current operating mode */ 1006 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1007 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1008 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1009 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1010 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1011 wme[0].acm[ac] = wmep->wmep_acm; 1012 1013 /* set WME values for CCK modulation */ 1014 wmep = &iwi_wme_cck_params[ac]; 1015 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1016 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1017 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1018 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1019 wme[1].acm[ac] = wmep->wmep_acm; 1020 1021 /* set WME values for OFDM modulation */ 1022 wmep = &iwi_wme_ofdm_params[ac]; 1023 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1024 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1025 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1026 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1027 wme[2].acm[ac] = wmep->wmep_acm; 1028 } 1029 1030 DPRINTF(("Setting WME parameters\n")); 1031 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1032 #undef IWI_USEC 1033 #undef IWI_EXP2 1034 } 1035 1036 /* 1037 * Read 16 bits at address 'addr' from the serial EEPROM. 1038 */ 1039 static uint16_t 1040 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1041 { 1042 uint32_t tmp; 1043 uint16_t val; 1044 int n; 1045 1046 /* Clock C once before the first command */ 1047 IWI_EEPROM_CTL(sc, 0); 1048 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1049 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1050 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1051 1052 /* Write start bit (1) */ 1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1054 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1055 1056 /* Write READ opcode (10) */ 1057 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1058 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1059 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1061 1062 /* Write address A7-A0 */ 1063 for (n = 7; n >= 0; n--) { 1064 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1065 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1066 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1067 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1068 } 1069 1070 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1071 1072 /* Read data Q15-Q0 */ 1073 val = 0; 1074 for (n = 15; n >= 0; n--) { 1075 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1076 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1077 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1078 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1079 } 1080 1081 IWI_EEPROM_CTL(sc, 0); 1082 1083 /* Clear Chip Select and clock C */ 1084 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1085 IWI_EEPROM_CTL(sc, 0); 1086 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1087 1088 return val; 1089 } 1090 1091 /* 1092 * XXX: Hack to set the current channel to the value advertised in beacons or 1093 * probe responses. Only used during AP detection. 1094 */ 1095 static void 1096 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1097 { 1098 struct ieee80211_frame *wh; 1099 uint8_t subtype; 1100 uint8_t *frm, *efrm; 1101 1102 wh = mtod(m, struct ieee80211_frame *); 1103 1104 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1105 return; 1106 1107 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1108 1109 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1110 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1111 return; 1112 1113 frm = (uint8_t *)(wh + 1); 1114 efrm = mtod(m, uint8_t *) + m->m_len; 1115 1116 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1117 while (frm + 2 < efrm) { 1118 if (*frm == IEEE80211_ELEMID_DSPARMS) { 1119 #if IEEE80211_CHAN_MAX < 255 1120 if (frm[2] <= IEEE80211_CHAN_MAX) 1121 #endif 1122 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1123 } 1124 1125 frm += frm[1] + 2; 1126 } 1127 } 1128 1129 static struct mbuf * 1130 iwi_alloc_rx_buf(struct iwi_softc *sc) 1131 { 1132 struct mbuf *m; 1133 1134 MGETHDR(m, M_DONTWAIT, MT_DATA); 1135 if (m == NULL) { 1136 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1137 return NULL; 1138 } 1139 1140 MCLGET(m, M_DONTWAIT); 1141 if (!(m->m_flags & M_EXT)) { 1142 aprint_error_dev(sc->sc_dev, 1143 "could not allocate rx mbuf cluster\n"); 1144 m_freem(m); 1145 return NULL; 1146 } 1147 1148 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1149 return m; 1150 } 1151 1152 static void 1153 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1154 struct iwi_frame *frame) 1155 { 1156 struct ieee80211com *ic = &sc->sc_ic; 1157 struct ifnet *ifp = ic->ic_ifp; 1158 struct mbuf *m, *m_new; 1159 struct ieee80211_frame *wh; 1160 struct ieee80211_node *ni; 1161 int error, s; 1162 1163 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1164 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1165 1166 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1167 le16toh(frame->len) > MCLBYTES) { 1168 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1169 ifp->if_ierrors++; 1170 return; 1171 } 1172 1173 /* 1174 * Try to allocate a new mbuf for this ring element and 1175 * load it before processing the current mbuf. If the ring 1176 * element cannot be reloaded, drop the received packet 1177 * and reuse the old mbuf. In the unlikely case that 1178 * the old mbuf can't be reloaded either, explicitly panic. 1179 * 1180 * XXX Reorganize buffer by moving elements from the logical 1181 * end of the ring to the front instead of dropping. 1182 */ 1183 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1184 ifp->if_ierrors++; 1185 return; 1186 } 1187 1188 bus_dmamap_unload(sc->sc_dmat, data->map); 1189 1190 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1191 BUS_DMA_READ | BUS_DMA_NOWAIT); 1192 if (error != 0) { 1193 aprint_error_dev(sc->sc_dev, 1194 "could not load rx buf DMA map\n"); 1195 m_freem(m_new); 1196 ifp->if_ierrors++; 1197 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1198 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1199 if (error) 1200 panic("%s: unable to remap rx buf", 1201 device_xname(sc->sc_dev)); 1202 return; 1203 } 1204 1205 /* 1206 * New mbuf successfully loaded, update RX ring and continue 1207 * processing. 1208 */ 1209 m = data->m; 1210 data->m = m_new; 1211 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1212 1213 /* Finalize mbuf */ 1214 m_set_rcvif(m, ifp); 1215 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1216 sizeof (struct iwi_frame) + le16toh(frame->len); 1217 1218 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1219 1220 s = splnet(); 1221 1222 if (ic->ic_state == IEEE80211_S_SCAN) 1223 iwi_fix_channel(ic, m); 1224 1225 if (sc->sc_drvbpf != NULL) { 1226 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1227 1228 tap->wr_flags = 0; 1229 tap->wr_rate = iwi_cvtrate(frame->rate); 1230 tap->wr_chan_freq = 1231 htole16(ic->ic_channels[frame->chan].ic_freq); 1232 tap->wr_chan_flags = 1233 htole16(ic->ic_channels[frame->chan].ic_flags); 1234 tap->wr_antsignal = frame->signal; 1235 tap->wr_antenna = frame->antenna; 1236 1237 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1238 } 1239 wh = mtod(m, struct ieee80211_frame *); 1240 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1241 1242 /* Send the frame to the upper layer */ 1243 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1244 1245 /* node is no longer needed */ 1246 ieee80211_free_node(ni); 1247 1248 splx(s); 1249 } 1250 1251 static void 1252 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1253 { 1254 struct ieee80211com *ic = &sc->sc_ic; 1255 struct iwi_notif_authentication *auth; 1256 struct iwi_notif_association *assoc; 1257 struct iwi_notif_beacon_state *beacon; 1258 int s; 1259 1260 switch (notif->type) { 1261 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1262 #ifdef IWI_DEBUG 1263 { 1264 struct iwi_notif_scan_channel *chan = 1265 (struct iwi_notif_scan_channel *)(notif + 1); 1266 1267 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1268 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1269 } 1270 #endif 1271 break; 1272 1273 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1274 #ifdef IWI_DEBUG 1275 { 1276 struct iwi_notif_scan_complete *scan = 1277 (struct iwi_notif_scan_complete *)(notif + 1); 1278 1279 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1280 scan->status)); 1281 } 1282 #endif 1283 1284 /* monitor mode uses scan to set the channel ... */ 1285 s = splnet(); 1286 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1287 sc->flags &= ~IWI_FLAG_SCANNING; 1288 ieee80211_end_scan(ic); 1289 } else 1290 iwi_set_chan(sc, ic->ic_ibss_chan); 1291 splx(s); 1292 break; 1293 1294 case IWI_NOTIF_TYPE_AUTHENTICATION: 1295 auth = (struct iwi_notif_authentication *)(notif + 1); 1296 1297 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1298 1299 switch (auth->state) { 1300 case IWI_AUTH_SUCCESS: 1301 s = splnet(); 1302 ieee80211_node_authorize(ic->ic_bss); 1303 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1304 splx(s); 1305 break; 1306 1307 case IWI_AUTH_FAIL: 1308 break; 1309 1310 case IWI_AUTH_SENT_1: 1311 case IWI_AUTH_RECV_2: 1312 case IWI_AUTH_SEQ1_PASS: 1313 break; 1314 1315 case IWI_AUTH_SEQ1_FAIL: 1316 break; 1317 1318 default: 1319 aprint_error_dev(sc->sc_dev, 1320 "unknown authentication state %u\n", auth->state); 1321 } 1322 break; 1323 1324 case IWI_NOTIF_TYPE_ASSOCIATION: 1325 assoc = (struct iwi_notif_association *)(notif + 1); 1326 1327 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1328 assoc->status)); 1329 1330 switch (assoc->state) { 1331 case IWI_AUTH_SUCCESS: 1332 /* re-association, do nothing */ 1333 break; 1334 1335 case IWI_ASSOC_SUCCESS: 1336 s = splnet(); 1337 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1338 splx(s); 1339 break; 1340 1341 case IWI_ASSOC_FAIL: 1342 s = splnet(); 1343 ieee80211_begin_scan(ic, 1); 1344 splx(s); 1345 break; 1346 1347 default: 1348 aprint_error_dev(sc->sc_dev, 1349 "unknown association state %u\n", assoc->state); 1350 } 1351 break; 1352 1353 case IWI_NOTIF_TYPE_BEACON: 1354 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1355 1356 if (beacon->state == IWI_BEACON_MISS) { 1357 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1358 device_xname(sc->sc_dev), le32toh(beacon->number))); 1359 } 1360 break; 1361 1362 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1363 case IWI_NOTIF_TYPE_LINK_QUALITY: 1364 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1365 case IWI_NOTIF_TYPE_CALIBRATION: 1366 case IWI_NOTIF_TYPE_NOISE: 1367 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1368 break; 1369 1370 default: 1371 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1372 device_xname(sc->sc_dev), notif->type, notif->flags, 1373 le16toh(notif->len))); 1374 } 1375 } 1376 1377 static void 1378 iwi_cmd_intr(struct iwi_softc *sc) 1379 { 1380 1381 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1382 1383 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1384 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1385 BUS_DMASYNC_POSTWRITE); 1386 1387 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1388 1389 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1390 1391 if (--sc->cmdq.queued > 0) { 1392 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1393 (sc->cmdq.next + 1) % sc->cmdq.count); 1394 } 1395 } 1396 1397 static void 1398 iwi_rx_intr(struct iwi_softc *sc) 1399 { 1400 struct iwi_rx_data *data; 1401 struct iwi_hdr *hdr; 1402 uint32_t hw; 1403 1404 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1405 1406 for (; sc->rxq.cur != hw;) { 1407 data = &sc->rxq.data[sc->rxq.cur]; 1408 1409 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1410 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1411 1412 hdr = mtod(data->m, struct iwi_hdr *); 1413 1414 switch (hdr->type) { 1415 case IWI_HDR_TYPE_FRAME: 1416 iwi_frame_intr(sc, data, sc->rxq.cur, 1417 (struct iwi_frame *)(hdr + 1)); 1418 break; 1419 1420 case IWI_HDR_TYPE_NOTIF: 1421 iwi_notification_intr(sc, 1422 (struct iwi_notif *)(hdr + 1)); 1423 break; 1424 1425 default: 1426 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1427 hdr->type); 1428 } 1429 1430 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1431 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1432 1433 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1434 1435 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1436 } 1437 1438 /* Tell the firmware what we have processed */ 1439 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1440 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1441 } 1442 1443 static void 1444 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1445 { 1446 struct ifnet *ifp = &sc->sc_if; 1447 struct iwi_tx_data *data; 1448 uint32_t hw; 1449 int s; 1450 1451 s = splnet(); 1452 1453 hw = CSR_READ_4(sc, txq->csr_ridx); 1454 1455 for (; txq->next != hw;) { 1456 data = &txq->data[txq->next]; 1457 1458 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1459 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1460 bus_dmamap_unload(sc->sc_dmat, data->map); 1461 m_freem(data->m); 1462 data->m = NULL; 1463 ieee80211_free_node(data->ni); 1464 data->ni = NULL; 1465 1466 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1467 1468 ifp->if_opackets++; 1469 1470 txq->queued--; 1471 txq->next = (txq->next + 1) % txq->count; 1472 } 1473 1474 sc->sc_tx_timer = 0; 1475 1476 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1477 ifp->if_flags &= ~IFF_OACTIVE; 1478 1479 /* Call start() since some buffer descriptors have been released */ 1480 iwi_start(ifp); /* in softint */ 1481 } 1482 1483 splx(s); 1484 } 1485 1486 static int 1487 iwi_intr(void *arg) 1488 { 1489 struct iwi_softc *sc = arg; 1490 uint32_t r; 1491 1492 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1493 return 0; 1494 1495 /* Disable interrupts */ 1496 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1497 1498 softint_schedule(sc->sc_soft_ih); 1499 return 1; 1500 } 1501 1502 static void 1503 iwi_softintr(void *arg) 1504 { 1505 struct iwi_softc *sc = arg; 1506 uint32_t r; 1507 int s; 1508 1509 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1510 goto out; 1511 1512 /* Acknowledge interrupts */ 1513 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1514 1515 if (r & IWI_INTR_FATAL_ERROR) { 1516 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1517 s = splnet(); 1518 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1519 iwi_stop(&sc->sc_if, 1); 1520 splx(s); 1521 return; 1522 } 1523 1524 if (r & IWI_INTR_FW_INITED) { 1525 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1526 wakeup(sc); 1527 } 1528 1529 if (r & IWI_INTR_RADIO_OFF) { 1530 DPRINTF(("radio transmitter off\n")); 1531 s = splnet(); 1532 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1533 iwi_stop(&sc->sc_if, 1); 1534 splx(s); 1535 return; 1536 } 1537 1538 if (r & IWI_INTR_CMD_DONE) 1539 iwi_cmd_intr(sc); 1540 1541 if (r & IWI_INTR_TX1_DONE) 1542 iwi_tx_intr(sc, &sc->txq[0]); 1543 1544 if (r & IWI_INTR_TX2_DONE) 1545 iwi_tx_intr(sc, &sc->txq[1]); 1546 1547 if (r & IWI_INTR_TX3_DONE) 1548 iwi_tx_intr(sc, &sc->txq[2]); 1549 1550 if (r & IWI_INTR_TX4_DONE) 1551 iwi_tx_intr(sc, &sc->txq[3]); 1552 1553 if (r & IWI_INTR_RX_DONE) 1554 iwi_rx_intr(sc); 1555 1556 if (r & IWI_INTR_PARITY_ERROR) 1557 aprint_error_dev(sc->sc_dev, "parity error\n"); 1558 1559 out: 1560 /* Re-enable interrupts */ 1561 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1562 } 1563 1564 static int 1565 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1566 int async) 1567 { 1568 struct iwi_cmd_desc *desc; 1569 1570 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1571 1572 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1573 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1574 desc->type = type; 1575 desc->len = len; 1576 memcpy(desc->data, data, len); 1577 1578 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1579 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1580 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1581 1582 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1583 sc->cmdq.cur, type, len, async)); 1584 1585 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1586 1587 if (++sc->cmdq.queued == 1) 1588 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1589 1590 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1591 } 1592 1593 static void 1594 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1595 { 1596 struct iwi_ibssnode node; 1597 1598 /* write node information into NIC memory */ 1599 memset(&node, 0, sizeof node); 1600 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1601 1602 CSR_WRITE_REGION_1(sc, 1603 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1604 (uint8_t *)&node, sizeof node); 1605 } 1606 1607 static int 1608 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1609 int ac) 1610 { 1611 struct iwi_softc *sc = ifp->if_softc; 1612 struct ieee80211com *ic = &sc->sc_ic; 1613 struct iwi_node *in = (struct iwi_node *)ni; 1614 struct ieee80211_frame *wh; 1615 struct ieee80211_key *k; 1616 const struct chanAccParams *cap; 1617 struct iwi_tx_ring *txq = &sc->txq[ac]; 1618 struct iwi_tx_data *data; 1619 struct iwi_tx_desc *desc; 1620 struct mbuf *mnew; 1621 int error, hdrlen, i, noack = 0; 1622 1623 wh = mtod(m0, struct ieee80211_frame *); 1624 1625 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1626 hdrlen = sizeof (struct ieee80211_qosframe); 1627 cap = &ic->ic_wme.wme_chanParams; 1628 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1629 } else 1630 hdrlen = sizeof (struct ieee80211_frame); 1631 1632 /* 1633 * This is only used in IBSS mode where the firmware expect an index 1634 * in a h/w table instead of a destination address. 1635 */ 1636 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1637 in->in_station = iwi_alloc_unr(sc); 1638 1639 if (in->in_station == -1) { /* h/w table is full */ 1640 m_freem(m0); 1641 ieee80211_free_node(ni); 1642 ifp->if_oerrors++; 1643 return 0; 1644 } 1645 iwi_write_ibssnode(sc, in); 1646 } 1647 1648 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1649 k = ieee80211_crypto_encap(ic, ni, m0); 1650 if (k == NULL) { 1651 m_freem(m0); 1652 return ENOBUFS; 1653 } 1654 1655 /* packet header may have moved, reset our local pointer */ 1656 wh = mtod(m0, struct ieee80211_frame *); 1657 } 1658 1659 if (sc->sc_drvbpf != NULL) { 1660 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1661 1662 tap->wt_flags = 0; 1663 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1664 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1665 1666 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0, BPF_D_OUT); 1667 } 1668 1669 data = &txq->data[txq->cur]; 1670 desc = &txq->desc[txq->cur]; 1671 1672 /* save and trim IEEE802.11 header */ 1673 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1674 m_adj(m0, hdrlen); 1675 1676 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1677 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1678 if (error != 0 && error != EFBIG) { 1679 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1680 error); 1681 m_freem(m0); 1682 return error; 1683 } 1684 if (error != 0) { 1685 /* too many fragments, linearize */ 1686 1687 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1688 if (mnew == NULL) { 1689 m_freem(m0); 1690 return ENOMEM; 1691 } 1692 1693 M_COPY_PKTHDR(mnew, m0); 1694 1695 /* If the data won't fit in the header, get a cluster */ 1696 if (m0->m_pkthdr.len > MHLEN) { 1697 MCLGET(mnew, M_DONTWAIT); 1698 if (!(mnew->m_flags & M_EXT)) { 1699 m_freem(m0); 1700 m_freem(mnew); 1701 return ENOMEM; 1702 } 1703 } 1704 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1705 m_freem(m0); 1706 mnew->m_len = mnew->m_pkthdr.len; 1707 m0 = mnew; 1708 1709 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1710 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1711 if (error != 0) { 1712 aprint_error_dev(sc->sc_dev, 1713 "could not map mbuf (error %d)\n", error); 1714 m_freem(m0); 1715 return error; 1716 } 1717 } 1718 1719 data->m = m0; 1720 data->ni = ni; 1721 1722 desc->hdr.type = IWI_HDR_TYPE_DATA; 1723 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1724 desc->station = 1725 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1726 desc->cmd = IWI_DATA_CMD_TX; 1727 desc->len = htole16(m0->m_pkthdr.len); 1728 desc->flags = 0; 1729 desc->xflags = 0; 1730 1731 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1732 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1733 1734 #if 0 1735 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1736 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1737 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1738 } else 1739 #endif 1740 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1741 1742 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1743 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1744 1745 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1746 desc->xflags |= IWI_DATA_XFLAG_QOS; 1747 1748 if (ic->ic_curmode == IEEE80211_MODE_11B) 1749 desc->xflags |= IWI_DATA_XFLAG_CCK; 1750 1751 desc->nseg = htole32(data->map->dm_nsegs); 1752 for (i = 0; i < data->map->dm_nsegs; i++) { 1753 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1754 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1755 } 1756 1757 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1758 txq->cur * IWI_TX_DESC_SIZE, 1759 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1760 1761 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1762 BUS_DMASYNC_PREWRITE); 1763 1764 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1765 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1766 1767 /* Inform firmware about this new packet */ 1768 txq->queued++; 1769 txq->cur = (txq->cur + 1) % txq->count; 1770 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1771 1772 return 0; 1773 } 1774 1775 static void 1776 iwi_start(struct ifnet *ifp) 1777 { 1778 struct iwi_softc *sc = ifp->if_softc; 1779 struct ieee80211com *ic = &sc->sc_ic; 1780 struct mbuf *m0; 1781 struct ether_header *eh; 1782 struct ieee80211_node *ni; 1783 int ac; 1784 1785 if (ic->ic_state != IEEE80211_S_RUN) 1786 return; 1787 1788 for (;;) { 1789 IFQ_DEQUEUE(&ifp->if_snd, m0); 1790 if (m0 == NULL) 1791 break; 1792 1793 if (m0->m_len < sizeof (struct ether_header) && 1794 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1795 ifp->if_oerrors++; 1796 continue; 1797 } 1798 1799 eh = mtod(m0, struct ether_header *); 1800 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1801 if (ni == NULL) { 1802 m_freem(m0); 1803 ifp->if_oerrors++; 1804 continue; 1805 } 1806 1807 /* classify mbuf so we can find which tx ring to use */ 1808 if (ieee80211_classify(ic, m0, ni) != 0) { 1809 m_freem(m0); 1810 ieee80211_free_node(ni); 1811 ifp->if_oerrors++; 1812 continue; 1813 } 1814 1815 /* no QoS encapsulation for EAPOL frames */ 1816 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1817 M_WME_GETAC(m0) : WME_AC_BE; 1818 1819 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1820 /* there is no place left in this ring */ 1821 IFQ_LOCK(&ifp->if_snd); 1822 IF_PREPEND(&ifp->if_snd, m0); 1823 IFQ_UNLOCK(&ifp->if_snd); 1824 ifp->if_flags |= IFF_OACTIVE; 1825 break; 1826 } 1827 1828 bpf_mtap(ifp, m0, BPF_D_OUT); 1829 1830 m0 = ieee80211_encap(ic, m0, ni); 1831 if (m0 == NULL) { 1832 ieee80211_free_node(ni); 1833 ifp->if_oerrors++; 1834 continue; 1835 } 1836 1837 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 1838 1839 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1840 ieee80211_free_node(ni); 1841 ifp->if_oerrors++; 1842 break; 1843 } 1844 1845 /* start watchdog timer */ 1846 sc->sc_tx_timer = 5; 1847 ifp->if_timer = 1; 1848 } 1849 } 1850 1851 static void 1852 iwi_watchdog(struct ifnet *ifp) 1853 { 1854 struct iwi_softc *sc = ifp->if_softc; 1855 1856 ifp->if_timer = 0; 1857 1858 if (sc->sc_tx_timer > 0) { 1859 if (--sc->sc_tx_timer == 0) { 1860 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1861 ifp->if_oerrors++; 1862 ifp->if_flags &= ~IFF_UP; 1863 iwi_stop(ifp, 1); 1864 return; 1865 } 1866 ifp->if_timer = 1; 1867 } 1868 1869 ieee80211_watchdog(&sc->sc_ic); 1870 } 1871 1872 static int 1873 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1874 { 1875 uint32_t size, buf[128]; 1876 1877 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1878 memset(buf, 0, sizeof buf); 1879 return copyout(buf, tbl, sizeof buf); 1880 } 1881 1882 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1883 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1884 1885 return copyout(buf, tbl, sizeof buf); 1886 } 1887 1888 static int 1889 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1890 { 1891 #define IS_RUNNING(ifp) \ 1892 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1893 1894 struct iwi_softc *sc = ifp->if_softc; 1895 struct ieee80211com *ic = &sc->sc_ic; 1896 struct ifreq *ifr = (struct ifreq *)data; 1897 int s, error = 0; 1898 int val; 1899 1900 s = splnet(); 1901 1902 switch (cmd) { 1903 case SIOCSIFFLAGS: 1904 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1905 break; 1906 if (ifp->if_flags & IFF_UP) { 1907 if (!(ifp->if_flags & IFF_RUNNING)) 1908 iwi_init(ifp); 1909 } else { 1910 if (ifp->if_flags & IFF_RUNNING) 1911 iwi_stop(ifp, 1); 1912 } 1913 break; 1914 1915 case SIOCADDMULTI: 1916 case SIOCDELMULTI: 1917 /* XXX no h/w multicast filter? --dyoung */ 1918 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1919 /* setup multicast filter, etc */ 1920 error = 0; 1921 } 1922 break; 1923 1924 case SIOCGTABLE0: 1925 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1926 break; 1927 1928 case SIOCGRADIO: 1929 val = !iwi_getrfkill(sc); 1930 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1931 break; 1932 1933 case SIOCSIFMEDIA: 1934 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1935 sc->sc_fwname = "ipw2200-ibss.fw"; 1936 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1937 sc->sc_fwname = "ipw2200-sniffer.fw"; 1938 } else { 1939 sc->sc_fwname = "ipw2200-bss.fw"; 1940 } 1941 error = iwi_cache_firmware(sc); 1942 if (error) 1943 break; 1944 /* FALLTRHOUGH */ 1945 1946 default: 1947 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1948 1949 if (error == ENETRESET) { 1950 if (IS_RUNNING(ifp) && 1951 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1952 iwi_init(ifp); 1953 error = 0; 1954 } 1955 } 1956 1957 splx(s); 1958 return error; 1959 #undef IS_RUNNING 1960 } 1961 1962 static void 1963 iwi_stop_master(struct iwi_softc *sc) 1964 { 1965 int ntries; 1966 1967 /* Disable interrupts */ 1968 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1969 1970 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1971 for (ntries = 0; ntries < 5; ntries++) { 1972 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1973 break; 1974 DELAY(10); 1975 } 1976 if (ntries == 5) 1977 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1978 1979 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1980 IWI_RST_PRINCETON_RESET); 1981 1982 sc->flags &= ~IWI_FLAG_FW_INITED; 1983 } 1984 1985 static int 1986 iwi_reset(struct iwi_softc *sc) 1987 { 1988 int i, ntries; 1989 1990 iwi_stop_master(sc); 1991 1992 /* Move adapter to D0 state */ 1993 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1994 IWI_CTL_INIT); 1995 1996 /* Initialize Phase-Locked Level (PLL) */ 1997 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1998 1999 /* Wait for clock stabilization */ 2000 for (ntries = 0; ntries < 1000; ntries++) { 2001 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2002 break; 2003 DELAY(200); 2004 } 2005 if (ntries == 1000) { 2006 aprint_error_dev(sc->sc_dev, 2007 "timeout waiting for clock stabilization\n"); 2008 return ETIMEDOUT; 2009 } 2010 2011 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2012 IWI_RST_SW_RESET); 2013 2014 DELAY(10); 2015 2016 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2017 IWI_CTL_INIT); 2018 2019 /* Clear NIC memory */ 2020 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2021 for (i = 0; i < 0xc000; i++) 2022 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2023 2024 return 0; 2025 } 2026 2027 static int 2028 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2029 { 2030 uint16_t *w; 2031 int ntries, i; 2032 2033 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2034 IWI_RST_STOP_MASTER); 2035 for (ntries = 0; ntries < 5; ntries++) { 2036 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2037 break; 2038 DELAY(10); 2039 } 2040 if (ntries == 5) { 2041 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2042 return ETIMEDOUT; 2043 } 2044 2045 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2046 DELAY(5000); 2047 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2048 ~IWI_RST_PRINCETON_RESET); 2049 DELAY(5000); 2050 MEM_WRITE_4(sc, 0x3000e0, 0); 2051 DELAY(1000); 2052 MEM_WRITE_4(sc, 0x300004, 1); 2053 DELAY(1000); 2054 MEM_WRITE_4(sc, 0x300004, 0); 2055 DELAY(1000); 2056 MEM_WRITE_1(sc, 0x200000, 0x00); 2057 MEM_WRITE_1(sc, 0x200000, 0x40); 2058 DELAY(1000); 2059 2060 /* Adapter is buggy, we must set the address for each word */ 2061 for (w = uc; size > 0; w++, size -= 2) 2062 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2063 2064 MEM_WRITE_1(sc, 0x200000, 0x00); 2065 MEM_WRITE_1(sc, 0x200000, 0x80); 2066 2067 /* Wait until we get a response in the uc queue */ 2068 for (ntries = 0; ntries < 100; ntries++) { 2069 if (MEM_READ_1(sc, 0x200000) & 1) 2070 break; 2071 DELAY(100); 2072 } 2073 if (ntries == 100) { 2074 aprint_error_dev(sc->sc_dev, 2075 "timeout waiting for ucode to initialize\n"); 2076 return ETIMEDOUT; 2077 } 2078 2079 /* Empty the uc queue or the firmware will not initialize properly */ 2080 for (i = 0; i < 7; i++) 2081 MEM_READ_4(sc, 0x200004); 2082 2083 MEM_WRITE_1(sc, 0x200000, 0x00); 2084 2085 return 0; 2086 } 2087 2088 /* macro to handle unaligned little endian data in firmware image */ 2089 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2090 static int 2091 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2092 { 2093 bus_dmamap_t map; 2094 u_char *p, *end; 2095 uint32_t sentinel, ctl, sum; 2096 uint32_t cs, sl, cd, cl; 2097 int ntries, nsegs, error; 2098 int sn; 2099 2100 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2101 2102 /* Create a DMA map for the firmware image */ 2103 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2104 BUS_DMA_NOWAIT, &map); 2105 if (error != 0) { 2106 aprint_error_dev(sc->sc_dev, 2107 "could not create firmware DMA map\n"); 2108 map = NULL; 2109 goto fail1; 2110 } 2111 2112 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2113 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2114 if (error != 0) { 2115 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2116 error); 2117 goto fail2; 2118 } 2119 2120 /* Make sure the adapter will get up-to-date values */ 2121 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2122 2123 /* Tell the adapter where the command blocks are stored */ 2124 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2125 2126 /* 2127 * Store command blocks into adapter's internal memory using register 2128 * indirections. The adapter will read the firmware image through DMA 2129 * using information stored in command blocks. 2130 */ 2131 p = fw; 2132 end = p + size; 2133 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2134 2135 sn = 0; 2136 sl = cl = 0; 2137 cs = cd = 0; 2138 while (p < end) { 2139 if (sl == 0) { 2140 cs = map->dm_segs[sn].ds_addr; 2141 sl = map->dm_segs[sn].ds_len; 2142 sn++; 2143 } 2144 if (cl == 0) { 2145 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2146 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2147 } 2148 while (sl > 0 && cl > 0) { 2149 int len = min(cl, sl); 2150 2151 sl -= len; 2152 cl -= len; 2153 p += len; 2154 2155 while (len > 0) { 2156 int mlen = min(len, IWI_CB_MAXDATALEN); 2157 2158 ctl = IWI_CB_DEFAULT_CTL | mlen; 2159 sum = ctl ^ cs ^ cd; 2160 2161 /* Write a command block */ 2162 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2163 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2164 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2165 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2166 2167 cs += mlen; 2168 cd += mlen; 2169 len -= mlen; 2170 } 2171 } 2172 } 2173 2174 /* Write a fictive final command block (sentinel) */ 2175 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2176 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2177 2178 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2179 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2180 2181 /* Tell the adapter to start processing command blocks */ 2182 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2183 2184 /* Wait until the adapter has processed all command blocks */ 2185 for (ntries = 0; ntries < 400; ntries++) { 2186 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2187 break; 2188 DELAY(100); 2189 } 2190 if (ntries == 400) { 2191 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2192 error = ETIMEDOUT; 2193 goto fail3; 2194 } 2195 2196 /* We're done with command blocks processing */ 2197 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2198 2199 /* Allow interrupts so we know when the firmware is inited */ 2200 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2201 2202 /* Tell the adapter to initialize the firmware */ 2203 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2204 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2205 IWI_CTL_ALLOW_STANDBY); 2206 2207 /* Wait at most one second for firmware initialization to complete */ 2208 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2209 aprint_error_dev(sc->sc_dev, 2210 "timeout waiting for firmware initialization to complete\n"); 2211 goto fail3; 2212 } 2213 2214 fail3: 2215 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2216 bus_dmamap_unload(sc->sc_dmat, map); 2217 fail2: 2218 if (map != NULL) 2219 bus_dmamap_destroy(sc->sc_dmat, map); 2220 2221 fail1: 2222 return error; 2223 } 2224 2225 /* 2226 * Store firmware into kernel memory so we can download it when we need to, 2227 * e.g when the adapter wakes up from suspend mode. 2228 */ 2229 static int 2230 iwi_cache_firmware(struct iwi_softc *sc) 2231 { 2232 struct iwi_firmware *kfw = &sc->fw; 2233 firmware_handle_t fwh; 2234 struct iwi_firmware_hdr *hdr; 2235 off_t size; 2236 char *fw; 2237 int error; 2238 2239 if (iwi_accept_eula == 0) { 2240 aprint_error_dev(sc->sc_dev, 2241 "EULA not accepted; please see the iwi(4) man page.\n"); 2242 return EPERM; 2243 } 2244 2245 iwi_free_firmware(sc); 2246 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2247 if (error != 0) { 2248 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2249 goto fail1; 2250 } 2251 2252 size = firmware_get_size(fwh); 2253 if (size < sizeof(struct iwi_firmware_hdr)) { 2254 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2255 sc->sc_fwname); 2256 error = EIO; 2257 goto fail1; 2258 } 2259 sc->sc_blobsize = size; 2260 2261 sc->sc_blob = firmware_malloc(size); 2262 if (sc->sc_blob == NULL) { 2263 error = ENOMEM; 2264 firmware_close(fwh); 2265 goto fail1; 2266 } 2267 2268 error = firmware_read(fwh, 0, sc->sc_blob, size); 2269 firmware_close(fwh); 2270 if (error != 0) 2271 goto fail2; 2272 2273 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2274 hdr->version = le32toh(hdr->version); 2275 hdr->bsize = le32toh(hdr->bsize); 2276 hdr->usize = le32toh(hdr->usize); 2277 hdr->fsize = le32toh(hdr->fsize); 2278 2279 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2280 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2281 sc->sc_fwname); 2282 error = EIO; 2283 goto fail2; 2284 } 2285 2286 DPRINTF(("firmware version = %d\n", hdr->version)); 2287 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2288 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2289 aprint_error_dev(sc->sc_dev, 2290 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2291 IWI_FW_GET_MAJOR(hdr->version), 2292 IWI_FW_GET_MINOR(hdr->version), 2293 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2294 error = EIO; 2295 goto fail2; 2296 } 2297 2298 kfw->boot_size = hdr->bsize; 2299 kfw->ucode_size = hdr->usize; 2300 kfw->main_size = hdr->fsize; 2301 2302 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2303 kfw->boot = fw; 2304 fw += kfw->boot_size; 2305 kfw->ucode = fw; 2306 fw += kfw->ucode_size; 2307 kfw->main = fw; 2308 2309 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2310 kfw->boot, kfw->ucode, kfw->main)); 2311 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2312 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2313 2314 sc->flags |= IWI_FLAG_FW_CACHED; 2315 2316 return 0; 2317 2318 2319 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2320 fail1: 2321 return error; 2322 } 2323 2324 static void 2325 iwi_free_firmware(struct iwi_softc *sc) 2326 { 2327 2328 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2329 return; 2330 2331 firmware_free(sc->sc_blob, sc->sc_blobsize); 2332 2333 sc->flags &= ~IWI_FLAG_FW_CACHED; 2334 } 2335 2336 static int 2337 iwi_config(struct iwi_softc *sc) 2338 { 2339 struct ieee80211com *ic = &sc->sc_ic; 2340 struct ifnet *ifp = &sc->sc_if; 2341 struct iwi_configuration config; 2342 struct iwi_rateset rs; 2343 struct iwi_txpower power; 2344 struct ieee80211_key *wk; 2345 struct iwi_wep_key wepkey; 2346 uint32_t data; 2347 int error, nchan, i; 2348 2349 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2350 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2351 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2352 IEEE80211_ADDR_LEN, 0); 2353 if (error != 0) 2354 return error; 2355 2356 memset(&config, 0, sizeof config); 2357 config.bluetooth_coexistence = sc->bluetooth; 2358 config.antenna = sc->antenna; 2359 config.silence_threshold = 0x1e; 2360 config.multicast_enabled = 1; 2361 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2362 config.disable_unicast_decryption = 1; 2363 config.disable_multicast_decryption = 1; 2364 DPRINTF(("Configuring adapter\n")); 2365 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2366 0); 2367 if (error != 0) 2368 return error; 2369 2370 data = htole32(IWI_POWER_MODE_CAM); 2371 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2372 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2373 if (error != 0) 2374 return error; 2375 2376 data = htole32(ic->ic_rtsthreshold); 2377 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2378 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2379 if (error != 0) 2380 return error; 2381 2382 data = htole32(ic->ic_fragthreshold); 2383 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2384 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2385 if (error != 0) 2386 return error; 2387 2388 /* 2389 * Set default Tx power for 802.11b/g and 802.11a channels. 2390 */ 2391 nchan = 0; 2392 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2393 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2394 continue; 2395 power.chan[nchan].chan = i; 2396 power.chan[nchan].power = IWI_TXPOWER_MAX; 2397 nchan++; 2398 } 2399 power.nchan = nchan; 2400 2401 power.mode = IWI_MODE_11G; 2402 DPRINTF(("Setting .11g 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 power.mode = IWI_MODE_11B; 2408 DPRINTF(("Setting .11b channels tx power\n")); 2409 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2410 if (error != 0) 2411 return error; 2412 2413 nchan = 0; 2414 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2415 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2416 continue; 2417 power.chan[nchan].chan = i; 2418 power.chan[nchan].power = IWI_TXPOWER_MAX; 2419 nchan++; 2420 } 2421 power.nchan = nchan; 2422 2423 if (nchan > 0) { /* 2915ABG only */ 2424 power.mode = IWI_MODE_11A; 2425 DPRINTF(("Setting .11a channels tx power\n")); 2426 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2427 0); 2428 if (error != 0) 2429 return error; 2430 } 2431 2432 rs.mode = IWI_MODE_11G; 2433 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2434 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2435 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2436 rs.nrates); 2437 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2438 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2439 if (error != 0) 2440 return error; 2441 2442 rs.mode = IWI_MODE_11A; 2443 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2444 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2445 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2446 rs.nrates); 2447 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2448 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2449 if (error != 0) 2450 return error; 2451 2452 /* if we have a desired ESSID, set it now */ 2453 if (ic->ic_des_esslen != 0) { 2454 #ifdef IWI_DEBUG 2455 if (iwi_debug > 0) { 2456 printf("Setting desired ESSID to "); 2457 ieee80211_print_essid(ic->ic_des_essid, 2458 ic->ic_des_esslen); 2459 printf("\n"); 2460 } 2461 #endif 2462 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2463 ic->ic_des_esslen, 0); 2464 if (error != 0) 2465 return error; 2466 } 2467 2468 cprng_fast(&data, sizeof(data)); 2469 data = htole32(data); 2470 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2471 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2472 if (error != 0) 2473 return error; 2474 2475 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2476 /* XXX iwi_setwepkeys? */ 2477 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2478 wk = &ic->ic_crypto.cs_nw_keys[i]; 2479 2480 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2481 wepkey.idx = i; 2482 wepkey.len = wk->wk_keylen; 2483 memset(wepkey.key, 0, sizeof wepkey.key); 2484 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2485 DPRINTF(("Setting wep key index %u len %u\n", 2486 wepkey.idx, wepkey.len)); 2487 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2488 sizeof wepkey, 0); 2489 if (error != 0) 2490 return error; 2491 } 2492 } 2493 2494 /* Enable adapter */ 2495 DPRINTF(("Enabling adapter\n")); 2496 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2497 } 2498 2499 static int 2500 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2501 { 2502 struct ieee80211com *ic = &sc->sc_ic; 2503 struct iwi_scan_v2 scan; 2504 2505 (void)memset(&scan, 0, sizeof scan); 2506 2507 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2508 scan.channels[0] = 1 | 2509 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2510 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2511 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2512 2513 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2514 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2515 } 2516 2517 static int 2518 iwi_scan(struct iwi_softc *sc) 2519 { 2520 struct ieee80211com *ic = &sc->sc_ic; 2521 struct iwi_scan_v2 scan; 2522 uint32_t type; 2523 uint8_t *p; 2524 int i, count, idx; 2525 2526 (void)memset(&scan, 0, sizeof scan); 2527 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2528 htole16(sc->dwelltime); 2529 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2530 htole16(sc->dwelltime); 2531 2532 /* tell the firmware about the desired essid */ 2533 if (ic->ic_des_esslen) { 2534 int error; 2535 2536 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2537 __func__, ic->ic_des_essid)); 2538 2539 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2540 ic->ic_des_essid, ic->ic_des_esslen, 1); 2541 if (error) 2542 return error; 2543 2544 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2545 } else { 2546 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2547 } 2548 2549 p = &scan.channels[0]; 2550 count = idx = 0; 2551 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2552 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2553 isset(ic->ic_chan_active, i)) { 2554 *++p = i; 2555 count++; 2556 idx++; 2557 iwi_scan_type_set(scan, idx, type); 2558 } 2559 } 2560 if (count) { 2561 *(p - count) = IWI_CHAN_5GHZ | count; 2562 p++; 2563 } 2564 2565 count = 0; 2566 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2567 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2568 isset(ic->ic_chan_active, i)) { 2569 *++p = i; 2570 count++; 2571 idx++; 2572 iwi_scan_type_set(scan, idx, type); 2573 } 2574 } 2575 *(p - count) = IWI_CHAN_2GHZ | count; 2576 2577 DPRINTF(("Start scanning\n")); 2578 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2579 } 2580 2581 static int 2582 iwi_auth_and_assoc(struct iwi_softc *sc) 2583 { 2584 struct ieee80211com *ic = &sc->sc_ic; 2585 struct ieee80211_node *ni = ic->ic_bss; 2586 struct ifnet *ifp = &sc->sc_if; 2587 struct ieee80211_wme_info wme; 2588 struct iwi_configuration config; 2589 struct iwi_associate assoc; 2590 struct iwi_rateset rs; 2591 uint16_t capinfo; 2592 uint32_t data; 2593 int error; 2594 2595 memset(&config, 0, sizeof config); 2596 config.bluetooth_coexistence = sc->bluetooth; 2597 config.antenna = sc->antenna; 2598 config.multicast_enabled = 1; 2599 config.silence_threshold = 0x1e; 2600 if (ic->ic_curmode == IEEE80211_MODE_11G) 2601 config.use_protection = 1; 2602 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2603 config.disable_unicast_decryption = 1; 2604 config.disable_multicast_decryption = 1; 2605 2606 DPRINTF(("Configuring adapter\n")); 2607 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2608 sizeof config, 1); 2609 if (error != 0) 2610 return error; 2611 2612 #ifdef IWI_DEBUG 2613 if (iwi_debug > 0) { 2614 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2615 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2616 aprint_debug("\n"); 2617 } 2618 #endif 2619 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2620 if (error != 0) 2621 return error; 2622 2623 /* the rate set has already been "negotiated" */ 2624 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2625 IWI_MODE_11G; 2626 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2627 rs.nrates = ni->ni_rates.rs_nrates; 2628 2629 if (rs.nrates > IWI_RATESET_SIZE) { 2630 DPRINTF(("Truncating negotiated rate set from %u\n", 2631 rs.nrates)); 2632 rs.nrates = IWI_RATESET_SIZE; 2633 } 2634 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2635 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2636 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2637 if (error != 0) 2638 return error; 2639 2640 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2641 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2642 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2643 wme.wme_oui[0] = 0x00; 2644 wme.wme_oui[1] = 0x50; 2645 wme.wme_oui[2] = 0xf2; 2646 wme.wme_type = WME_OUI_TYPE; 2647 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2648 wme.wme_version = WME_VERSION; 2649 wme.wme_info = 0; 2650 2651 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2652 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2653 if (error != 0) 2654 return error; 2655 } 2656 2657 if (ic->ic_opt_ie != NULL) { 2658 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2659 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2660 ic->ic_opt_ie_len, 1); 2661 if (error != 0) 2662 return error; 2663 } 2664 data = htole32(ni->ni_rssi); 2665 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2666 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2667 if (error != 0) 2668 return error; 2669 2670 memset(&assoc, 0, sizeof assoc); 2671 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2672 assoc.mode = IWI_MODE_11A; 2673 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2674 assoc.mode = IWI_MODE_11G; 2675 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2676 assoc.mode = IWI_MODE_11B; 2677 2678 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2679 2680 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2681 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2682 2683 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2684 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2685 2686 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2687 assoc.policy |= htole16(IWI_POLICY_WME); 2688 if (ic->ic_flags & IEEE80211_F_WPA) 2689 assoc.policy |= htole16(IWI_POLICY_WPA); 2690 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2691 assoc.type = IWI_HC_IBSS_START; 2692 else 2693 assoc.type = IWI_HC_ASSOC; 2694 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2695 2696 if (ic->ic_opmode == IEEE80211_M_IBSS) 2697 capinfo = IEEE80211_CAPINFO_IBSS; 2698 else 2699 capinfo = IEEE80211_CAPINFO_ESS; 2700 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2701 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2702 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2703 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2704 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2705 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2706 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2707 assoc.capinfo = htole16(capinfo); 2708 2709 assoc.lintval = htole16(ic->ic_lintval); 2710 assoc.intval = htole16(ni->ni_intval); 2711 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2712 if (ic->ic_opmode == IEEE80211_M_IBSS) 2713 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2714 else 2715 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2716 2717 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2718 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2719 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2720 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2721 assoc.chan, le16toh(assoc.policy), assoc.auth, 2722 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2723 le16toh(assoc.intval))); 2724 2725 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2726 } 2727 2728 static int 2729 iwi_init(struct ifnet *ifp) 2730 { 2731 struct iwi_softc *sc = ifp->if_softc; 2732 struct ieee80211com *ic = &sc->sc_ic; 2733 struct iwi_firmware *fw = &sc->fw; 2734 int i, error; 2735 2736 /* exit immediately if firmware has not been ioctl'd */ 2737 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2738 if ((error = iwi_cache_firmware(sc)) != 0) { 2739 aprint_error_dev(sc->sc_dev, 2740 "could not cache the firmware\n"); 2741 goto fail; 2742 } 2743 } 2744 2745 iwi_stop(ifp, 0); 2746 2747 if ((error = iwi_reset(sc)) != 0) { 2748 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2749 goto fail; 2750 } 2751 2752 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2753 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2754 goto fail; 2755 } 2756 2757 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2758 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2759 goto fail; 2760 } 2761 2762 iwi_stop_master(sc); 2763 2764 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2765 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2766 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2767 2768 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2769 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2770 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2771 2772 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2773 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2774 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2775 2776 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2777 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2778 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2779 2780 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2781 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2782 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2783 2784 for (i = 0; i < sc->rxq.count; i++) 2785 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2786 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2787 2788 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2789 2790 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2791 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2792 goto fail; 2793 } 2794 2795 sc->flags |= IWI_FLAG_FW_INITED; 2796 2797 if ((error = iwi_config(sc)) != 0) { 2798 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2799 goto fail; 2800 } 2801 2802 ic->ic_state = IEEE80211_S_INIT; 2803 2804 ifp->if_flags &= ~IFF_OACTIVE; 2805 ifp->if_flags |= IFF_RUNNING; 2806 2807 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2808 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2809 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2810 } else 2811 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2812 2813 return 0; 2814 2815 fail: ifp->if_flags &= ~IFF_UP; 2816 iwi_stop(ifp, 0); 2817 2818 return error; 2819 } 2820 2821 2822 /* 2823 * Return whether or not the radio is enabled in hardware 2824 * (i.e. the rfkill switch is "off"). 2825 */ 2826 static int 2827 iwi_getrfkill(struct iwi_softc *sc) 2828 { 2829 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2830 } 2831 2832 static int 2833 iwi_sysctl_radio(SYSCTLFN_ARGS) 2834 { 2835 struct sysctlnode node; 2836 struct iwi_softc *sc; 2837 int val, error; 2838 2839 node = *rnode; 2840 sc = (struct iwi_softc *)node.sysctl_data; 2841 2842 val = !iwi_getrfkill(sc); 2843 2844 node.sysctl_data = &val; 2845 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2846 2847 if (error || newp == NULL) 2848 return error; 2849 2850 return 0; 2851 } 2852 2853 #ifdef IWI_DEBUG 2854 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2855 { 2856 int rc; 2857 const struct sysctlnode *rnode; 2858 const struct sysctlnode *cnode; 2859 2860 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2861 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2862 SYSCTL_DESCR("iwi global controls"), 2863 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2864 goto err; 2865 2866 /* control debugging printfs */ 2867 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2868 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2869 "debug", SYSCTL_DESCR("Enable debugging output"), 2870 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2871 goto err; 2872 2873 return; 2874 err: 2875 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2876 } 2877 2878 #endif /* IWI_DEBUG */ 2879 2880 /* 2881 * Add sysctl knobs. 2882 */ 2883 static void 2884 iwi_sysctlattach(struct iwi_softc *sc) 2885 { 2886 int rc; 2887 const struct sysctlnode *rnode; 2888 const struct sysctlnode *cnode; 2889 2890 struct sysctllog **clog = &sc->sc_sysctllog; 2891 2892 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2893 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2894 SYSCTL_DESCR("iwi controls and statistics"), 2895 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2896 goto err; 2897 2898 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2899 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2900 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2901 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2902 goto err; 2903 2904 sc->dwelltime = 100; 2905 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2906 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2907 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2908 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2909 goto err; 2910 2911 sc->bluetooth = 0; 2912 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2913 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2914 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2915 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2916 goto err; 2917 2918 sc->antenna = IWI_ANTENNA_AUTO; 2919 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2920 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2921 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2922 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2923 goto err; 2924 2925 return; 2926 err: 2927 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2928 } 2929 2930 static void 2931 iwi_stop(struct ifnet *ifp, int disable) 2932 { 2933 struct iwi_softc *sc = ifp->if_softc; 2934 struct ieee80211com *ic = &sc->sc_ic; 2935 2936 IWI_LED_OFF(sc); 2937 2938 iwi_stop_master(sc); 2939 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2940 2941 /* reset rings */ 2942 iwi_reset_cmd_ring(sc, &sc->cmdq); 2943 iwi_reset_tx_ring(sc, &sc->txq[0]); 2944 iwi_reset_tx_ring(sc, &sc->txq[1]); 2945 iwi_reset_tx_ring(sc, &sc->txq[2]); 2946 iwi_reset_tx_ring(sc, &sc->txq[3]); 2947 iwi_reset_rx_ring(sc, &sc->rxq); 2948 2949 ifp->if_timer = 0; 2950 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2951 2952 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2953 } 2954 2955 static void 2956 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2957 { 2958 uint32_t val; 2959 2960 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2961 2962 switch (sc->nictype) { 2963 case 1: 2964 /* special NIC type: reversed leds */ 2965 if (state == IWI_LED_ACTIVITY) { 2966 state &= ~IWI_LED_ACTIVITY; 2967 state |= IWI_LED_ASSOCIATED; 2968 } else if (state == IWI_LED_ASSOCIATED) { 2969 state &= ~IWI_LED_ASSOCIATED; 2970 state |= IWI_LED_ACTIVITY; 2971 } 2972 /* and ignore toggle effect */ 2973 val |= state; 2974 break; 2975 case 0: 2976 case 2: 2977 case 3: 2978 case 4: 2979 val = (toggle && (val & state)) ? val & ~state : val | state; 2980 break; 2981 default: 2982 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2983 sc->nictype); 2984 return; 2985 break; 2986 } 2987 2988 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2989 2990 return; 2991 } 2992 2993 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2994 { 2995 const struct sysctlnode *rnode; 2996 const struct sysctlnode *cnode; 2997 2998 sysctl_createv(NULL, 0, NULL, &rnode, 2999 CTLFLAG_PERMANENT, 3000 CTLTYPE_NODE, "iwi", 3001 NULL, 3002 NULL, 0, 3003 NULL, 0, 3004 CTL_HW, CTL_CREATE, CTL_EOL); 3005 3006 sysctl_createv(NULL, 0, &rnode, &cnode, 3007 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 3008 CTLTYPE_INT, "accept_eula", 3009 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 3010 NULL, 0, 3011 &iwi_accept_eula, sizeof(iwi_accept_eula), 3012 CTL_CREATE, CTL_EOL); 3013 } 3014