1 /* $NetBSD: if_iwi.c,v 1.86 2011/01/31 00:01:07 christos 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 1.86 2011/01/31 00:01:07 christos 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 42 #include <sys/bus.h> 43 #include <machine/endian.h> 44 #include <sys/intr.h> 45 46 #include <dev/firmload.h> 47 48 #include <dev/pci/pcireg.h> 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcidevs.h> 51 52 #include <net/bpf.h> 53 #include <net/if.h> 54 #include <net/if_arp.h> 55 #include <net/if_dl.h> 56 #include <net/if_ether.h> 57 #include <net/if_media.h> 58 #include <net/if_types.h> 59 60 #include <net80211/ieee80211_var.h> 61 #include <net80211/ieee80211_radiotap.h> 62 63 #include <netinet/in.h> 64 #include <netinet/in_systm.h> 65 #include <netinet/in_var.h> 66 #include <netinet/ip.h> 67 68 #include <crypto/arc4/arc4.h> 69 70 #include <dev/pci/if_iwireg.h> 71 #include <dev/pci/if_iwivar.h> 72 73 #ifdef IWI_DEBUG 74 #define DPRINTF(x) if (iwi_debug > 0) printf x 75 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 76 int iwi_debug = 4; 77 #else 78 #define DPRINTF(x) 79 #define DPRINTFN(n, x) 80 #endif 81 82 /* Permit loading the Intel firmware */ 83 static int iwi_accept_eula; 84 85 static int iwi_match(device_t, cfdata_t, void *); 86 static void iwi_attach(device_t, device_t, void *); 87 static int iwi_detach(device_t, int); 88 89 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 90 int); 91 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 92 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 93 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 94 int, bus_size_t, bus_size_t); 95 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 96 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 97 static struct mbuf * 98 iwi_alloc_rx_buf(struct iwi_softc *sc); 99 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 100 int); 101 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 102 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 103 104 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 105 static void iwi_node_free(struct ieee80211_node *); 106 107 static int iwi_cvtrate(int); 108 static int iwi_media_change(struct ifnet *); 109 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 110 static int iwi_wme_update(struct ieee80211com *); 111 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 112 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 113 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 114 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 115 struct iwi_frame *); 116 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 117 static void iwi_cmd_intr(struct iwi_softc *); 118 static void iwi_rx_intr(struct iwi_softc *); 119 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 120 static int iwi_intr(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 /* 151 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 152 */ 153 static const struct ieee80211_rateset iwi_rateset_11a = 154 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 155 156 static const struct ieee80211_rateset iwi_rateset_11b = 157 { 4, { 2, 4, 11, 22 } }; 158 159 static const struct ieee80211_rateset iwi_rateset_11g = 160 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 161 162 static inline uint8_t 163 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 164 { 165 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 166 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 167 } 168 169 static inline uint32_t 170 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 171 { 172 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 173 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 174 } 175 176 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 177 iwi_detach, NULL); 178 179 static int 180 iwi_match(device_t parent, cfdata_t match, void *aux) 181 { 182 struct pci_attach_args *pa = aux; 183 184 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 185 return 0; 186 187 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 190 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 191 return 1; 192 193 return 0; 194 } 195 196 /* Base Address Register */ 197 #define IWI_PCI_BAR0 0x10 198 199 static void 200 iwi_attach(device_t parent, device_t self, void *aux) 201 { 202 struct iwi_softc *sc = device_private(self); 203 struct ieee80211com *ic = &sc->sc_ic; 204 struct ifnet *ifp = &sc->sc_if; 205 struct pci_attach_args *pa = aux; 206 const char *intrstr; 207 char devinfo[256]; 208 bus_space_tag_t memt; 209 bus_space_handle_t memh; 210 pci_intr_handle_t ih; 211 pcireg_t data; 212 uint16_t val; 213 int error, revision, i; 214 215 sc->sc_dev = self; 216 sc->sc_pct = pa->pa_pc; 217 sc->sc_pcitag = pa->pa_tag; 218 219 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof devinfo); 220 revision = PCI_REVISION(pa->pa_class); 221 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 222 223 /* clear unit numbers allocated to IBSS */ 224 sc->sc_unr = 0; 225 226 /* power up chip */ 227 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 228 NULL)) && error != EOPNOTSUPP) { 229 aprint_error_dev(self, "cannot activate %d\n", error); 230 return; 231 } 232 233 /* clear device specific PCI configuration register 0x41 */ 234 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 235 data &= ~0x0000ff00; 236 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 237 238 239 /* enable bus-mastering */ 240 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 241 data |= PCI_COMMAND_MASTER_ENABLE; 242 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 243 244 /* map the register window */ 245 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 246 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 247 if (error != 0) { 248 aprint_error_dev(self, "could not map memory space\n"); 249 return; 250 } 251 252 sc->sc_st = memt; 253 sc->sc_sh = memh; 254 sc->sc_dmat = pa->pa_dmat; 255 256 /* disable interrupts */ 257 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 258 259 if (pci_intr_map(pa, &ih) != 0) { 260 aprint_error_dev(self, "could not map interrupt\n"); 261 return; 262 } 263 264 intrstr = pci_intr_string(sc->sc_pct, ih); 265 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 266 if (sc->sc_ih == NULL) { 267 aprint_error_dev(self, "could not establish interrupt"); 268 if (intrstr != NULL) 269 aprint_error(" at %s", intrstr); 270 aprint_error("\n"); 271 return; 272 } 273 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 274 275 if (iwi_reset(sc) != 0) { 276 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 277 aprint_error_dev(self, "could not reset adapter\n"); 278 return; 279 } 280 281 ic->ic_ifp = ifp; 282 ic->ic_wme.wme_update = iwi_wme_update; 283 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 284 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 285 ic->ic_state = IEEE80211_S_INIT; 286 287 sc->sc_fwname = "ipw2200-bss.fw"; 288 289 /* set device capabilities */ 290 ic->ic_caps = 291 IEEE80211_C_IBSS | /* IBSS mode supported */ 292 IEEE80211_C_MONITOR | /* monitor mode supported */ 293 IEEE80211_C_TXPMGT | /* tx power management */ 294 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 295 IEEE80211_C_SHSLOT | /* short slot time supported */ 296 IEEE80211_C_WPA | /* 802.11i */ 297 IEEE80211_C_WME; /* 802.11e */ 298 299 /* read MAC address from EEPROM */ 300 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 301 ic->ic_myaddr[0] = val & 0xff; 302 ic->ic_myaddr[1] = val >> 8; 303 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 304 ic->ic_myaddr[2] = val & 0xff; 305 ic->ic_myaddr[3] = val >> 8; 306 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 307 ic->ic_myaddr[4] = val & 0xff; 308 ic->ic_myaddr[5] = val >> 8; 309 310 aprint_verbose_dev(self, "802.11 address %s\n", 311 ether_sprintf(ic->ic_myaddr)); 312 313 /* read the NIC type from EEPROM */ 314 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 315 sc->nictype = val & 0xff; 316 317 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 318 319 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 320 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 321 /* set supported .11a rates (2915ABG only) */ 322 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 323 324 /* set supported .11a channels */ 325 for (i = 36; i <= 64; i += 4) { 326 ic->ic_channels[i].ic_freq = 327 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 328 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 329 } 330 for (i = 149; i <= 165; i += 4) { 331 ic->ic_channels[i].ic_freq = 332 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 333 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 334 } 335 } 336 337 /* set supported .11b and .11g rates */ 338 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 339 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 340 341 /* set supported .11b and .11g channels (1 through 14) */ 342 for (i = 1; i <= 14; i++) { 343 ic->ic_channels[i].ic_freq = 344 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 345 ic->ic_channels[i].ic_flags = 346 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 347 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 348 } 349 350 ifp->if_softc = sc; 351 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 352 ifp->if_init = iwi_init; 353 ifp->if_stop = iwi_stop; 354 ifp->if_ioctl = iwi_ioctl; 355 ifp->if_start = iwi_start; 356 ifp->if_watchdog = iwi_watchdog; 357 IFQ_SET_READY(&ifp->if_snd); 358 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 359 360 if_attach(ifp); 361 ieee80211_ifattach(ic); 362 /* override default methods */ 363 ic->ic_node_alloc = iwi_node_alloc; 364 sc->sc_node_free = ic->ic_node_free; 365 ic->ic_node_free = iwi_node_free; 366 /* override state transition machine */ 367 sc->sc_newstate = ic->ic_newstate; 368 ic->ic_newstate = iwi_newstate; 369 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 370 371 /* 372 * Allocate rings. 373 */ 374 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 375 aprint_error_dev(self, "could not allocate command ring\n"); 376 goto fail; 377 } 378 379 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 380 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 381 if (error != 0) { 382 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 383 goto fail; 384 } 385 386 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 387 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 388 if (error != 0) { 389 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 390 goto fail; 391 } 392 393 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 394 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 395 if (error != 0) { 396 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 397 goto fail; 398 } 399 400 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 401 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 402 if (error != 0) { 403 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 404 goto fail; 405 } 406 407 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 408 aprint_error_dev(self, "could not allocate Rx ring\n"); 409 goto fail; 410 } 411 412 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 413 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 414 415 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 416 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 417 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 418 419 sc->sc_txtap_len = sizeof sc->sc_txtapu; 420 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 421 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 422 423 iwi_sysctlattach(sc); 424 425 if (pmf_device_register(self, NULL, NULL)) 426 pmf_class_network_register(self, ifp); 427 else 428 aprint_error_dev(self, "couldn't establish power handler\n"); 429 430 ieee80211_announce(ic); 431 432 return; 433 434 fail: iwi_detach(self, 0); 435 } 436 437 static int 438 iwi_detach(device_t self, int flags) 439 { 440 struct iwi_softc *sc = device_private(self); 441 struct ifnet *ifp = &sc->sc_if; 442 443 pmf_device_deregister(self); 444 445 if (ifp != NULL) 446 iwi_stop(ifp, 1); 447 448 iwi_free_firmware(sc); 449 450 ieee80211_ifdetach(&sc->sc_ic); 451 if (ifp != NULL) 452 if_detach(ifp); 453 454 iwi_free_cmd_ring(sc, &sc->cmdq); 455 iwi_free_tx_ring(sc, &sc->txq[0]); 456 iwi_free_tx_ring(sc, &sc->txq[1]); 457 iwi_free_tx_ring(sc, &sc->txq[2]); 458 iwi_free_tx_ring(sc, &sc->txq[3]); 459 iwi_free_rx_ring(sc, &sc->rxq); 460 461 if (sc->sc_ih != NULL) { 462 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 463 sc->sc_ih = NULL; 464 } 465 466 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 467 468 return 0; 469 } 470 471 static int 472 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 473 int count) 474 { 475 int error, nsegs; 476 477 ring->count = count; 478 ring->queued = 0; 479 ring->cur = ring->next = 0; 480 481 /* 482 * Allocate and map command ring 483 */ 484 error = bus_dmamap_create(sc->sc_dmat, 485 IWI_CMD_DESC_SIZE * count, 1, 486 IWI_CMD_DESC_SIZE * count, 0, 487 BUS_DMA_NOWAIT, &ring->desc_map); 488 if (error != 0) { 489 aprint_error_dev(sc->sc_dev, 490 "could not create command ring DMA map\n"); 491 ring->desc_map = NULL; 492 goto fail; 493 } 494 495 error = bus_dmamem_alloc(sc->sc_dmat, 496 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 497 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 498 if (error != 0) { 499 aprint_error_dev(sc->sc_dev, 500 "could not allocate command ring DMA memory\n"); 501 goto fail; 502 } 503 504 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 505 IWI_CMD_DESC_SIZE * count, 506 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 507 if (error != 0) { 508 aprint_error_dev(sc->sc_dev, 509 "could not map command ring DMA memory\n"); 510 goto fail; 511 } 512 513 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 514 IWI_CMD_DESC_SIZE * count, NULL, 515 BUS_DMA_NOWAIT); 516 if (error != 0) { 517 aprint_error_dev(sc->sc_dev, 518 "could not load command ring DMA map\n"); 519 goto fail; 520 } 521 522 memset(sc->cmdq.desc, 0, 523 IWI_CMD_DESC_SIZE * count); 524 525 return 0; 526 527 fail: return error; 528 } 529 530 static void 531 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 532 { 533 int i; 534 535 for (i = ring->next; i != ring->cur;) { 536 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 537 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 538 BUS_DMASYNC_POSTWRITE); 539 540 wakeup(&ring->desc[i]); 541 i = (i + 1) % ring->count; 542 } 543 544 ring->queued = 0; 545 ring->cur = ring->next = 0; 546 } 547 548 static void 549 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 550 { 551 if (ring->desc_map != NULL) { 552 if (ring->desc != NULL) { 553 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 554 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 555 IWI_CMD_DESC_SIZE * ring->count); 556 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 557 } 558 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 559 } 560 } 561 562 static int 563 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 564 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 565 { 566 int i, error, nsegs; 567 568 ring->count = 0; 569 ring->queued = 0; 570 ring->cur = ring->next = 0; 571 ring->csr_ridx = csr_ridx; 572 ring->csr_widx = csr_widx; 573 574 /* 575 * Allocate and map Tx ring 576 */ 577 error = bus_dmamap_create(sc->sc_dmat, 578 IWI_TX_DESC_SIZE * count, 1, 579 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 580 &ring->desc_map); 581 if (error != 0) { 582 aprint_error_dev(sc->sc_dev, 583 "could not create tx ring DMA map\n"); 584 ring->desc_map = NULL; 585 goto fail; 586 } 587 588 error = bus_dmamem_alloc(sc->sc_dmat, 589 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 590 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 591 if (error != 0) { 592 aprint_error_dev(sc->sc_dev, 593 "could not allocate tx ring DMA memory\n"); 594 goto fail; 595 } 596 597 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 598 IWI_TX_DESC_SIZE * count, 599 (void **)&ring->desc, BUS_DMA_NOWAIT); 600 if (error != 0) { 601 aprint_error_dev(sc->sc_dev, 602 "could not map tx ring DMA memory\n"); 603 goto fail; 604 } 605 606 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 607 IWI_TX_DESC_SIZE * count, NULL, 608 BUS_DMA_NOWAIT); 609 if (error != 0) { 610 aprint_error_dev(sc->sc_dev, 611 "could not load tx ring DMA map\n"); 612 goto fail; 613 } 614 615 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 616 617 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 618 M_NOWAIT | M_ZERO); 619 if (ring->data == NULL) { 620 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 621 error = ENOMEM; 622 goto fail; 623 } 624 ring->count = count; 625 626 /* 627 * Allocate Tx buffers DMA maps 628 */ 629 for (i = 0; i < count; i++) { 630 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 631 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 632 if (error != 0) { 633 aprint_error_dev(sc->sc_dev, 634 "could not create tx buf DMA map"); 635 ring->data[i].map = NULL; 636 goto fail; 637 } 638 } 639 return 0; 640 641 fail: return error; 642 } 643 644 static void 645 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 646 { 647 struct iwi_tx_data *data; 648 int i; 649 650 for (i = 0; i < ring->count; i++) { 651 data = &ring->data[i]; 652 653 if (data->m != NULL) { 654 m_freem(data->m); 655 data->m = NULL; 656 } 657 658 if (data->map != NULL) { 659 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 660 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 661 bus_dmamap_unload(sc->sc_dmat, data->map); 662 } 663 664 if (data->ni != NULL) { 665 ieee80211_free_node(data->ni); 666 data->ni = NULL; 667 } 668 } 669 670 ring->queued = 0; 671 ring->cur = ring->next = 0; 672 } 673 674 static void 675 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 676 { 677 int i; 678 struct iwi_tx_data *data; 679 680 if (ring->desc_map != NULL) { 681 if (ring->desc != NULL) { 682 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 683 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 684 IWI_TX_DESC_SIZE * ring->count); 685 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 686 } 687 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 688 } 689 690 for (i = 0; i < ring->count; i++) { 691 data = &ring->data[i]; 692 693 if (data->m != NULL) { 694 m_freem(data->m); 695 } 696 697 if (data->map != NULL) { 698 bus_dmamap_unload(sc->sc_dmat, data->map); 699 bus_dmamap_destroy(sc->sc_dmat, data->map); 700 } 701 } 702 } 703 704 static int 705 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 706 { 707 int i, error; 708 709 ring->count = 0; 710 ring->cur = 0; 711 712 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 713 M_NOWAIT | M_ZERO); 714 if (ring->data == NULL) { 715 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 716 error = ENOMEM; 717 goto fail; 718 } 719 720 ring->count = count; 721 722 /* 723 * Allocate and map Rx buffers 724 */ 725 for (i = 0; i < count; i++) { 726 727 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 728 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 729 if (error != 0) { 730 aprint_error_dev(sc->sc_dev, 731 "could not create rx buf DMA map"); 732 ring->data[i].map = NULL; 733 goto fail; 734 } 735 736 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 737 error = ENOMEM; 738 goto fail; 739 } 740 741 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 742 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 743 if (error != 0) { 744 aprint_error_dev(sc->sc_dev, 745 "could not load rx buffer DMA map\n"); 746 goto fail; 747 } 748 749 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 750 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 751 } 752 753 return 0; 754 755 fail: return error; 756 } 757 758 static void 759 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 760 { 761 ring->cur = 0; 762 } 763 764 static void 765 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 766 { 767 int i; 768 struct iwi_rx_data *data; 769 770 for (i = 0; i < ring->count; i++) { 771 data = &ring->data[i]; 772 773 if (data->m != NULL) { 774 m_freem(data->m); 775 } 776 777 if (data->map != NULL) { 778 bus_dmamap_unload(sc->sc_dmat, data->map); 779 bus_dmamap_destroy(sc->sc_dmat, data->map); 780 } 781 782 } 783 } 784 785 static struct ieee80211_node * 786 iwi_node_alloc(struct ieee80211_node_table *nt) 787 { 788 struct iwi_node *in; 789 790 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 791 if (in == NULL) 792 return NULL; 793 794 in->in_station = -1; 795 796 return &in->in_node; 797 } 798 799 static int 800 iwi_alloc_unr(struct iwi_softc *sc) 801 { 802 int i; 803 804 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 805 if ((sc->sc_unr & (1 << i)) == 0) { 806 sc->sc_unr |= 1 << i; 807 return i; 808 } 809 810 return -1; 811 } 812 813 static void 814 iwi_free_unr(struct iwi_softc *sc, int r) 815 { 816 817 sc->sc_unr &= 1 << r; 818 } 819 820 static void 821 iwi_node_free(struct ieee80211_node *ni) 822 { 823 struct ieee80211com *ic = ni->ni_ic; 824 struct iwi_softc *sc = ic->ic_ifp->if_softc; 825 struct iwi_node *in = (struct iwi_node *)ni; 826 827 if (in->in_station != -1) 828 iwi_free_unr(sc, in->in_station); 829 830 sc->sc_node_free(ni); 831 } 832 833 static int 834 iwi_media_change(struct ifnet *ifp) 835 { 836 int error; 837 838 error = ieee80211_media_change(ifp); 839 if (error != ENETRESET) 840 return error; 841 842 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 843 iwi_init(ifp); 844 845 return 0; 846 } 847 848 /* 849 * Convert h/w rate code to IEEE rate code. 850 */ 851 static int 852 iwi_cvtrate(int iwirate) 853 { 854 switch (iwirate) { 855 case IWI_RATE_DS1: return 2; 856 case IWI_RATE_DS2: return 4; 857 case IWI_RATE_DS5: return 11; 858 case IWI_RATE_DS11: return 22; 859 case IWI_RATE_OFDM6: return 12; 860 case IWI_RATE_OFDM9: return 18; 861 case IWI_RATE_OFDM12: return 24; 862 case IWI_RATE_OFDM18: return 36; 863 case IWI_RATE_OFDM24: return 48; 864 case IWI_RATE_OFDM36: return 72; 865 case IWI_RATE_OFDM48: return 96; 866 case IWI_RATE_OFDM54: return 108; 867 } 868 return 0; 869 } 870 871 /* 872 * The firmware automatically adapts the transmit speed. We report its current 873 * value here. 874 */ 875 static void 876 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 877 { 878 struct iwi_softc *sc = ifp->if_softc; 879 struct ieee80211com *ic = &sc->sc_ic; 880 int rate; 881 882 imr->ifm_status = IFM_AVALID; 883 imr->ifm_active = IFM_IEEE80211; 884 if (ic->ic_state == IEEE80211_S_RUN) 885 imr->ifm_status |= IFM_ACTIVE; 886 887 /* read current transmission rate from adapter */ 888 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 889 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 890 891 switch (ic->ic_opmode) { 892 case IEEE80211_M_STA: 893 break; 894 895 case IEEE80211_M_IBSS: 896 imr->ifm_active |= IFM_IEEE80211_ADHOC; 897 break; 898 899 case IEEE80211_M_MONITOR: 900 imr->ifm_active |= IFM_IEEE80211_MONITOR; 901 break; 902 903 case IEEE80211_M_AHDEMO: 904 case IEEE80211_M_HOSTAP: 905 /* should not get there */ 906 break; 907 } 908 } 909 910 static int 911 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 912 { 913 struct iwi_softc *sc = ic->ic_ifp->if_softc; 914 915 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 916 ieee80211_state_name[ic->ic_state], 917 ieee80211_state_name[nstate], sc->flags)); 918 919 switch (nstate) { 920 case IEEE80211_S_SCAN: 921 if (sc->flags & IWI_FLAG_SCANNING) 922 break; 923 924 ieee80211_node_table_reset(&ic->ic_scan); 925 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 926 sc->flags |= IWI_FLAG_SCANNING; 927 /* blink the led while scanning */ 928 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 929 iwi_scan(sc); 930 break; 931 932 case IEEE80211_S_AUTH: 933 iwi_auth_and_assoc(sc); 934 break; 935 936 case IEEE80211_S_RUN: 937 if (ic->ic_opmode == IEEE80211_M_IBSS) 938 ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 939 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 940 iwi_set_chan(sc, ic->ic_ibss_chan); 941 942 return (*sc->sc_newstate)(ic, nstate, 943 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 944 945 case IEEE80211_S_ASSOC: 946 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 947 break; 948 949 case IEEE80211_S_INIT: 950 sc->flags &= ~IWI_FLAG_SCANNING; 951 return (*sc->sc_newstate)(ic, nstate, arg); 952 } 953 954 ic->ic_state = nstate; 955 return 0; 956 } 957 958 /* 959 * WME parameters coming from IEEE 802.11e specification. These values are 960 * already declared in ieee80211_proto.c, but they are static so they can't 961 * be reused here. 962 */ 963 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 964 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 965 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 966 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 967 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 968 }; 969 970 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 971 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 972 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 973 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 974 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 975 }; 976 977 static int 978 iwi_wme_update(struct ieee80211com *ic) 979 { 980 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 981 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 982 struct iwi_softc *sc = ic->ic_ifp->if_softc; 983 struct iwi_wme_params wme[3]; 984 const struct wmeParams *wmep; 985 int ac; 986 987 /* 988 * We shall not override firmware default WME values if WME is not 989 * actually enabled. 990 */ 991 if (!(ic->ic_flags & IEEE80211_F_WME)) 992 return 0; 993 994 for (ac = 0; ac < WME_NUM_AC; ac++) { 995 /* set WME values for current operating mode */ 996 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 997 wme[0].aifsn[ac] = wmep->wmep_aifsn; 998 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 999 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1000 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1001 wme[0].acm[ac] = wmep->wmep_acm; 1002 1003 /* set WME values for CCK modulation */ 1004 wmep = &iwi_wme_cck_params[ac]; 1005 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1006 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1007 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1008 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1009 wme[1].acm[ac] = wmep->wmep_acm; 1010 1011 /* set WME values for OFDM modulation */ 1012 wmep = &iwi_wme_ofdm_params[ac]; 1013 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1014 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1015 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1016 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1017 wme[2].acm[ac] = wmep->wmep_acm; 1018 } 1019 1020 DPRINTF(("Setting WME parameters\n")); 1021 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1022 #undef IWI_USEC 1023 #undef IWI_EXP2 1024 } 1025 1026 /* 1027 * Read 16 bits at address 'addr' from the serial EEPROM. 1028 */ 1029 static uint16_t 1030 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1031 { 1032 uint32_t tmp; 1033 uint16_t val; 1034 int n; 1035 1036 /* Clock C once before the first command */ 1037 IWI_EEPROM_CTL(sc, 0); 1038 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1039 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1041 1042 /* Write start bit (1) */ 1043 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1044 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1045 1046 /* Write READ opcode (10) */ 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 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1050 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1051 1052 /* Write address A7-A0 */ 1053 for (n = 7; n >= 0; n--) { 1054 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1055 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1056 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1057 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1058 } 1059 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1061 1062 /* Read data Q15-Q0 */ 1063 val = 0; 1064 for (n = 15; n >= 0; n--) { 1065 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1066 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1067 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1068 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1069 } 1070 1071 IWI_EEPROM_CTL(sc, 0); 1072 1073 /* Clear Chip Select and clock C */ 1074 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1075 IWI_EEPROM_CTL(sc, 0); 1076 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1077 1078 return val; 1079 } 1080 1081 /* 1082 * XXX: Hack to set the current channel to the value advertised in beacons or 1083 * probe responses. Only used during AP detection. 1084 */ 1085 static void 1086 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1087 { 1088 struct ieee80211_frame *wh; 1089 uint8_t subtype; 1090 uint8_t *frm, *efrm; 1091 1092 wh = mtod(m, struct ieee80211_frame *); 1093 1094 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1095 return; 1096 1097 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1098 1099 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1100 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1101 return; 1102 1103 frm = (uint8_t *)(wh + 1); 1104 efrm = mtod(m, uint8_t *) + m->m_len; 1105 1106 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1107 while (frm < efrm) { 1108 if (*frm == IEEE80211_ELEMID_DSPARMS) 1109 #if IEEE80211_CHAN_MAX < 255 1110 if (frm[2] <= IEEE80211_CHAN_MAX) 1111 #endif 1112 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1113 1114 frm += frm[1] + 2; 1115 } 1116 } 1117 1118 static struct mbuf * 1119 iwi_alloc_rx_buf(struct iwi_softc *sc) 1120 { 1121 struct mbuf *m; 1122 1123 MGETHDR(m, M_DONTWAIT, MT_DATA); 1124 if (m == NULL) { 1125 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1126 return NULL; 1127 } 1128 1129 MCLGET(m, M_DONTWAIT); 1130 if (!(m->m_flags & M_EXT)) { 1131 aprint_error_dev(sc->sc_dev, 1132 "could not allocate rx mbuf cluster\n"); 1133 m_freem(m); 1134 return NULL; 1135 } 1136 1137 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1138 return m; 1139 } 1140 1141 static void 1142 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1143 struct iwi_frame *frame) 1144 { 1145 struct ieee80211com *ic = &sc->sc_ic; 1146 struct ifnet *ifp = ic->ic_ifp; 1147 struct mbuf *m, *m_new; 1148 struct ieee80211_frame *wh; 1149 struct ieee80211_node *ni; 1150 int error; 1151 1152 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1153 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1154 1155 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1156 le16toh(frame->len) > MCLBYTES) { 1157 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1158 ifp->if_ierrors++; 1159 return; 1160 } 1161 1162 /* 1163 * Try to allocate a new mbuf for this ring element and 1164 * load it before processing the current mbuf. If the ring 1165 * element cannot be reloaded, drop the received packet 1166 * and reuse the old mbuf. In the unlikely case that 1167 * the old mbuf can't be reloaded either, explicitly panic. 1168 * 1169 * XXX Reorganize buffer by moving elements from the logical 1170 * end of the ring to the front instead of dropping. 1171 */ 1172 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1173 ifp->if_ierrors++; 1174 return; 1175 } 1176 1177 bus_dmamap_unload(sc->sc_dmat, data->map); 1178 1179 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1180 BUS_DMA_READ | BUS_DMA_NOWAIT); 1181 if (error != 0) { 1182 aprint_error_dev(sc->sc_dev, 1183 "could not load rx buf DMA map\n"); 1184 m_freem(m_new); 1185 ifp->if_ierrors++; 1186 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1187 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1188 if (error) 1189 panic("%s: unable to remap rx buf", 1190 device_xname(sc->sc_dev)); 1191 return; 1192 } 1193 1194 /* 1195 * New mbuf successfully loaded, update RX ring and continue 1196 * processing. 1197 */ 1198 m = data->m; 1199 data->m = m_new; 1200 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1201 1202 /* Finalize mbuf */ 1203 m->m_pkthdr.rcvif = ifp; 1204 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1205 sizeof (struct iwi_frame) + le16toh(frame->len); 1206 1207 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1208 1209 if (ic->ic_state == IEEE80211_S_SCAN) 1210 iwi_fix_channel(ic, m); 1211 1212 if (sc->sc_drvbpf != NULL) { 1213 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1214 1215 tap->wr_flags = 0; 1216 tap->wr_rate = iwi_cvtrate(frame->rate); 1217 tap->wr_chan_freq = 1218 htole16(ic->ic_channels[frame->chan].ic_freq); 1219 tap->wr_chan_flags = 1220 htole16(ic->ic_channels[frame->chan].ic_flags); 1221 tap->wr_antsignal = frame->signal; 1222 tap->wr_antenna = frame->antenna; 1223 1224 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1225 } 1226 wh = mtod(m, struct ieee80211_frame *); 1227 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1228 1229 /* Send the frame to the upper layer */ 1230 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1231 1232 /* node is no longer needed */ 1233 ieee80211_free_node(ni); 1234 } 1235 1236 static void 1237 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1238 { 1239 struct ieee80211com *ic = &sc->sc_ic; 1240 struct iwi_notif_scan_channel *chan; 1241 struct iwi_notif_scan_complete *scan; 1242 struct iwi_notif_authentication *auth; 1243 struct iwi_notif_association *assoc; 1244 struct iwi_notif_beacon_state *beacon; 1245 1246 switch (notif->type) { 1247 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1248 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1249 1250 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1251 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1252 break; 1253 1254 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1255 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1256 1257 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1258 scan->status)); 1259 1260 /* monitor mode uses scan to set the channel ... */ 1261 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1262 sc->flags &= ~IWI_FLAG_SCANNING; 1263 ieee80211_end_scan(ic); 1264 } else 1265 iwi_set_chan(sc, ic->ic_ibss_chan); 1266 break; 1267 1268 case IWI_NOTIF_TYPE_AUTHENTICATION: 1269 auth = (struct iwi_notif_authentication *)(notif + 1); 1270 1271 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1272 1273 switch (auth->state) { 1274 case IWI_AUTH_SUCCESS: 1275 ieee80211_node_authorize(ic->ic_bss); 1276 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1277 break; 1278 1279 case IWI_AUTH_FAIL: 1280 break; 1281 1282 default: 1283 aprint_error_dev(sc->sc_dev, 1284 "unknown authentication state %u\n", auth->state); 1285 } 1286 break; 1287 1288 case IWI_NOTIF_TYPE_ASSOCIATION: 1289 assoc = (struct iwi_notif_association *)(notif + 1); 1290 1291 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1292 assoc->status)); 1293 1294 switch (assoc->state) { 1295 case IWI_AUTH_SUCCESS: 1296 /* re-association, do nothing */ 1297 break; 1298 1299 case IWI_ASSOC_SUCCESS: 1300 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1301 break; 1302 1303 case IWI_ASSOC_FAIL: 1304 ieee80211_begin_scan(ic, 1); 1305 break; 1306 1307 default: 1308 aprint_error_dev(sc->sc_dev, 1309 "unknown association state %u\n", assoc->state); 1310 } 1311 break; 1312 1313 case IWI_NOTIF_TYPE_BEACON: 1314 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1315 1316 if (beacon->state == IWI_BEACON_MISS) { 1317 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1318 device_xname(sc->sc_dev), le32toh(beacon->number))); 1319 } 1320 break; 1321 1322 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1323 case IWI_NOTIF_TYPE_LINK_QUALITY: 1324 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1325 case IWI_NOTIF_TYPE_CALIBRATION: 1326 case IWI_NOTIF_TYPE_NOISE: 1327 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1328 break; 1329 1330 default: 1331 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1332 device_xname(sc->sc_dev), notif->type, notif->flags, 1333 le16toh(notif->len))); 1334 } 1335 } 1336 1337 static void 1338 iwi_cmd_intr(struct iwi_softc *sc) 1339 { 1340 uint32_t hw; 1341 1342 hw = CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1343 1344 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1345 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1346 BUS_DMASYNC_POSTWRITE); 1347 1348 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1349 1350 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1351 1352 if (--sc->cmdq.queued > 0) { 1353 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1354 } 1355 } 1356 1357 static void 1358 iwi_rx_intr(struct iwi_softc *sc) 1359 { 1360 struct iwi_rx_data *data; 1361 struct iwi_hdr *hdr; 1362 uint32_t hw; 1363 1364 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1365 1366 for (; sc->rxq.cur != hw;) { 1367 data = &sc->rxq.data[sc->rxq.cur]; 1368 1369 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1370 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1371 1372 hdr = mtod(data->m, struct iwi_hdr *); 1373 1374 switch (hdr->type) { 1375 case IWI_HDR_TYPE_FRAME: 1376 iwi_frame_intr(sc, data, sc->rxq.cur, 1377 (struct iwi_frame *)(hdr + 1)); 1378 break; 1379 1380 case IWI_HDR_TYPE_NOTIF: 1381 iwi_notification_intr(sc, 1382 (struct iwi_notif *)(hdr + 1)); 1383 break; 1384 1385 default: 1386 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1387 hdr->type); 1388 } 1389 1390 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1391 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1392 1393 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1394 1395 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1396 } 1397 1398 /* Tell the firmware what we have processed */ 1399 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1400 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1401 } 1402 1403 static void 1404 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1405 { 1406 struct ifnet *ifp = &sc->sc_if; 1407 struct iwi_tx_data *data; 1408 uint32_t hw; 1409 1410 hw = CSR_READ_4(sc, txq->csr_ridx); 1411 1412 for (; txq->next != hw;) { 1413 data = &txq->data[txq->next]; 1414 1415 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1416 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1417 bus_dmamap_unload(sc->sc_dmat, data->map); 1418 m_freem(data->m); 1419 data->m = NULL; 1420 ieee80211_free_node(data->ni); 1421 data->ni = NULL; 1422 1423 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1424 1425 ifp->if_opackets++; 1426 1427 txq->queued--; 1428 txq->next = (txq->next + 1) % txq->count; 1429 } 1430 1431 sc->sc_tx_timer = 0; 1432 ifp->if_flags &= ~IFF_OACTIVE; 1433 1434 /* Call start() since some buffer descriptors have been released */ 1435 (*ifp->if_start)(ifp); 1436 } 1437 1438 static int 1439 iwi_intr(void *arg) 1440 { 1441 struct iwi_softc *sc = arg; 1442 uint32_t r; 1443 1444 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1445 return 0; 1446 1447 /* Acknowledge interrupts */ 1448 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1449 1450 if (r & IWI_INTR_FATAL_ERROR) { 1451 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1452 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1453 iwi_stop(&sc->sc_if, 1); 1454 return (1); 1455 } 1456 1457 if (r & IWI_INTR_FW_INITED) { 1458 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1459 wakeup(sc); 1460 } 1461 1462 if (r & IWI_INTR_RADIO_OFF) { 1463 DPRINTF(("radio transmitter off\n")); 1464 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1465 iwi_stop(&sc->sc_if, 1); 1466 return (1); 1467 } 1468 1469 if (r & IWI_INTR_CMD_DONE) 1470 iwi_cmd_intr(sc); 1471 1472 if (r & IWI_INTR_TX1_DONE) 1473 iwi_tx_intr(sc, &sc->txq[0]); 1474 1475 if (r & IWI_INTR_TX2_DONE) 1476 iwi_tx_intr(sc, &sc->txq[1]); 1477 1478 if (r & IWI_INTR_TX3_DONE) 1479 iwi_tx_intr(sc, &sc->txq[2]); 1480 1481 if (r & IWI_INTR_TX4_DONE) 1482 iwi_tx_intr(sc, &sc->txq[3]); 1483 1484 if (r & IWI_INTR_RX_DONE) 1485 iwi_rx_intr(sc); 1486 1487 if (r & IWI_INTR_PARITY_ERROR) 1488 aprint_error_dev(sc->sc_dev, "parity error\n"); 1489 1490 return 1; 1491 } 1492 1493 static int 1494 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1495 int async) 1496 { 1497 struct iwi_cmd_desc *desc; 1498 1499 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1500 1501 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1502 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1503 desc->type = type; 1504 desc->len = len; 1505 memcpy(desc->data, data, len); 1506 1507 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1508 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1509 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1510 1511 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1512 sc->cmdq.cur, type, len, async)); 1513 1514 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1515 1516 if (++sc->cmdq.queued == 1) 1517 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1518 1519 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1520 } 1521 1522 static void 1523 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1524 { 1525 struct iwi_ibssnode node; 1526 1527 /* write node information into NIC memory */ 1528 memset(&node, 0, sizeof node); 1529 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1530 1531 CSR_WRITE_REGION_1(sc, 1532 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1533 (uint8_t *)&node, sizeof node); 1534 } 1535 1536 static int 1537 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1538 int ac) 1539 { 1540 struct iwi_softc *sc = ifp->if_softc; 1541 struct ieee80211com *ic = &sc->sc_ic; 1542 struct iwi_node *in = (struct iwi_node *)ni; 1543 struct ieee80211_frame *wh; 1544 struct ieee80211_key *k; 1545 const struct chanAccParams *cap; 1546 struct iwi_tx_ring *txq = &sc->txq[ac]; 1547 struct iwi_tx_data *data; 1548 struct iwi_tx_desc *desc; 1549 struct mbuf *mnew; 1550 int error, hdrlen, i, noack = 0; 1551 1552 wh = mtod(m0, struct ieee80211_frame *); 1553 1554 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1555 hdrlen = sizeof (struct ieee80211_qosframe); 1556 cap = &ic->ic_wme.wme_chanParams; 1557 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1558 } else 1559 hdrlen = sizeof (struct ieee80211_frame); 1560 1561 /* 1562 * This is only used in IBSS mode where the firmware expect an index 1563 * in a h/w table instead of a destination address. 1564 */ 1565 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1566 in->in_station = iwi_alloc_unr(sc); 1567 1568 if (in->in_station == -1) { /* h/w table is full */ 1569 m_freem(m0); 1570 ieee80211_free_node(ni); 1571 ifp->if_oerrors++; 1572 return 0; 1573 } 1574 iwi_write_ibssnode(sc, in); 1575 } 1576 1577 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1578 k = ieee80211_crypto_encap(ic, ni, m0); 1579 if (k == NULL) { 1580 m_freem(m0); 1581 return ENOBUFS; 1582 } 1583 1584 /* packet header may have moved, reset our local pointer */ 1585 wh = mtod(m0, struct ieee80211_frame *); 1586 } 1587 1588 if (sc->sc_drvbpf != NULL) { 1589 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1590 1591 tap->wt_flags = 0; 1592 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1593 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1594 1595 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1596 } 1597 1598 data = &txq->data[txq->cur]; 1599 desc = &txq->desc[txq->cur]; 1600 1601 /* save and trim IEEE802.11 header */ 1602 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1603 m_adj(m0, hdrlen); 1604 1605 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1606 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1607 if (error != 0 && error != EFBIG) { 1608 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1609 error); 1610 m_freem(m0); 1611 return error; 1612 } 1613 if (error != 0) { 1614 /* too many fragments, linearize */ 1615 1616 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1617 if (mnew == NULL) { 1618 m_freem(m0); 1619 return ENOMEM; 1620 } 1621 1622 M_COPY_PKTHDR(mnew, m0); 1623 1624 /* If the data won't fit in the header, get a cluster */ 1625 if (m0->m_pkthdr.len > MHLEN) { 1626 MCLGET(mnew, M_DONTWAIT); 1627 if (!(mnew->m_flags & M_EXT)) { 1628 m_freem(m0); 1629 m_freem(mnew); 1630 return ENOMEM; 1631 } 1632 } 1633 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1634 m_freem(m0); 1635 mnew->m_len = mnew->m_pkthdr.len; 1636 m0 = mnew; 1637 1638 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1639 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1640 if (error != 0) { 1641 aprint_error_dev(sc->sc_dev, 1642 "could not map mbuf (error %d)\n", error); 1643 m_freem(m0); 1644 return error; 1645 } 1646 } 1647 1648 data->m = m0; 1649 data->ni = ni; 1650 1651 desc->hdr.type = IWI_HDR_TYPE_DATA; 1652 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1653 desc->station = 1654 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1655 desc->cmd = IWI_DATA_CMD_TX; 1656 desc->len = htole16(m0->m_pkthdr.len); 1657 desc->flags = 0; 1658 desc->xflags = 0; 1659 1660 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1661 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1662 1663 #if 0 1664 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1665 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1666 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1667 } else 1668 #endif 1669 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1670 1671 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1672 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1673 1674 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1675 desc->xflags |= IWI_DATA_XFLAG_QOS; 1676 1677 if (ic->ic_curmode == IEEE80211_MODE_11B) 1678 desc->xflags |= IWI_DATA_XFLAG_CCK; 1679 1680 desc->nseg = htole32(data->map->dm_nsegs); 1681 for (i = 0; i < data->map->dm_nsegs; i++) { 1682 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1683 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1684 } 1685 1686 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1687 txq->cur * IWI_TX_DESC_SIZE, 1688 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1689 1690 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1691 BUS_DMASYNC_PREWRITE); 1692 1693 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1694 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1695 1696 /* Inform firmware about this new packet */ 1697 txq->queued++; 1698 txq->cur = (txq->cur + 1) % txq->count; 1699 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1700 1701 return 0; 1702 } 1703 1704 static void 1705 iwi_start(struct ifnet *ifp) 1706 { 1707 struct iwi_softc *sc = ifp->if_softc; 1708 struct ieee80211com *ic = &sc->sc_ic; 1709 struct mbuf *m0; 1710 struct ether_header *eh; 1711 struct ieee80211_node *ni; 1712 int ac; 1713 1714 if (ic->ic_state != IEEE80211_S_RUN) 1715 return; 1716 1717 for (;;) { 1718 IF_DEQUEUE(&ifp->if_snd, m0); 1719 if (m0 == NULL) 1720 break; 1721 1722 if (m0->m_len < sizeof (struct ether_header) && 1723 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1724 ifp->if_oerrors++; 1725 continue; 1726 } 1727 1728 eh = mtod(m0, struct ether_header *); 1729 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1730 if (ni == NULL) { 1731 m_freem(m0); 1732 ifp->if_oerrors++; 1733 continue; 1734 } 1735 1736 /* classify mbuf so we can find which tx ring to use */ 1737 if (ieee80211_classify(ic, m0, ni) != 0) { 1738 m_freem(m0); 1739 ieee80211_free_node(ni); 1740 ifp->if_oerrors++; 1741 continue; 1742 } 1743 1744 /* no QoS encapsulation for EAPOL frames */ 1745 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1746 M_WME_GETAC(m0) : WME_AC_BE; 1747 1748 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1749 /* there is no place left in this ring */ 1750 IF_PREPEND(&ifp->if_snd, m0); 1751 ifp->if_flags |= IFF_OACTIVE; 1752 break; 1753 } 1754 1755 bpf_mtap(ifp, m0); 1756 1757 m0 = ieee80211_encap(ic, m0, ni); 1758 if (m0 == NULL) { 1759 ieee80211_free_node(ni); 1760 ifp->if_oerrors++; 1761 continue; 1762 } 1763 1764 bpf_mtap3(ic->ic_rawbpf, m0); 1765 1766 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1767 ieee80211_free_node(ni); 1768 ifp->if_oerrors++; 1769 break; 1770 } 1771 1772 /* start watchdog timer */ 1773 sc->sc_tx_timer = 5; 1774 ifp->if_timer = 1; 1775 } 1776 } 1777 1778 static void 1779 iwi_watchdog(struct ifnet *ifp) 1780 { 1781 struct iwi_softc *sc = ifp->if_softc; 1782 1783 ifp->if_timer = 0; 1784 1785 if (sc->sc_tx_timer > 0) { 1786 if (--sc->sc_tx_timer == 0) { 1787 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1788 ifp->if_oerrors++; 1789 ifp->if_flags &= ~IFF_UP; 1790 iwi_stop(ifp, 1); 1791 return; 1792 } 1793 ifp->if_timer = 1; 1794 } 1795 1796 ieee80211_watchdog(&sc->sc_ic); 1797 } 1798 1799 static int 1800 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1801 { 1802 uint32_t size, buf[128]; 1803 1804 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1805 memset(buf, 0, sizeof buf); 1806 return copyout(buf, tbl, sizeof buf); 1807 } 1808 1809 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1810 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1811 1812 return copyout(buf, tbl, sizeof buf); 1813 } 1814 1815 static int 1816 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1817 { 1818 #define IS_RUNNING(ifp) \ 1819 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1820 1821 struct iwi_softc *sc = ifp->if_softc; 1822 struct ieee80211com *ic = &sc->sc_ic; 1823 struct ifreq *ifr = (struct ifreq *)data; 1824 int s, error = 0; 1825 int val; 1826 1827 s = splnet(); 1828 1829 switch (cmd) { 1830 case SIOCSIFFLAGS: 1831 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1832 break; 1833 if (ifp->if_flags & IFF_UP) { 1834 if (!(ifp->if_flags & IFF_RUNNING)) 1835 iwi_init(ifp); 1836 } else { 1837 if (ifp->if_flags & IFF_RUNNING) 1838 iwi_stop(ifp, 1); 1839 } 1840 break; 1841 1842 case SIOCADDMULTI: 1843 case SIOCDELMULTI: 1844 /* XXX no h/w multicast filter? --dyoung */ 1845 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1846 /* setup multicast filter, etc */ 1847 error = 0; 1848 } 1849 break; 1850 1851 case SIOCGTABLE0: 1852 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1853 break; 1854 1855 case SIOCGRADIO: 1856 val = !iwi_getrfkill(sc); 1857 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1858 break; 1859 1860 case SIOCSIFMEDIA: 1861 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1862 sc->sc_fwname = "ipw2200-ibss.fw"; 1863 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1864 sc->sc_fwname = "ipw2200-sniffer.fw"; 1865 } else { 1866 sc->sc_fwname = "ipw2200-bss.fw"; 1867 } 1868 error = iwi_cache_firmware(sc); 1869 if (error) 1870 break; 1871 /* FALLTRHOUGH */ 1872 1873 default: 1874 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1875 1876 if (error == ENETRESET) { 1877 if (IS_RUNNING(ifp) && 1878 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1879 iwi_init(ifp); 1880 error = 0; 1881 } 1882 } 1883 1884 splx(s); 1885 return error; 1886 #undef IS_RUNNING 1887 } 1888 1889 static void 1890 iwi_stop_master(struct iwi_softc *sc) 1891 { 1892 int ntries; 1893 1894 /* Disable interrupts */ 1895 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1896 1897 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1898 for (ntries = 0; ntries < 5; ntries++) { 1899 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1900 break; 1901 DELAY(10); 1902 } 1903 if (ntries == 5) 1904 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1905 1906 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1907 IWI_RST_PRINCETON_RESET); 1908 1909 sc->flags &= ~IWI_FLAG_FW_INITED; 1910 } 1911 1912 static int 1913 iwi_reset(struct iwi_softc *sc) 1914 { 1915 int i, ntries; 1916 1917 iwi_stop_master(sc); 1918 1919 /* Move adapter to D0 state */ 1920 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1921 IWI_CTL_INIT); 1922 1923 /* Initialize Phase-Locked Level (PLL) */ 1924 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1925 1926 /* Wait for clock stabilization */ 1927 for (ntries = 0; ntries < 1000; ntries++) { 1928 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1929 break; 1930 DELAY(200); 1931 } 1932 if (ntries == 1000) { 1933 aprint_error_dev(sc->sc_dev, 1934 "timeout waiting for clock stabilization\n"); 1935 return ETIMEDOUT; 1936 } 1937 1938 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1939 IWI_RST_SW_RESET); 1940 1941 DELAY(10); 1942 1943 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1944 IWI_CTL_INIT); 1945 1946 /* Clear NIC memory */ 1947 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1948 for (i = 0; i < 0xc000; i++) 1949 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1950 1951 return 0; 1952 } 1953 1954 static int 1955 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1956 { 1957 uint16_t *w; 1958 int ntries, i; 1959 1960 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1961 IWI_RST_STOP_MASTER); 1962 for (ntries = 0; ntries < 5; ntries++) { 1963 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1964 break; 1965 DELAY(10); 1966 } 1967 if (ntries == 5) { 1968 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1969 return ETIMEDOUT; 1970 } 1971 1972 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1973 DELAY(5000); 1974 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1975 ~IWI_RST_PRINCETON_RESET); 1976 DELAY(5000); 1977 MEM_WRITE_4(sc, 0x3000e0, 0); 1978 DELAY(1000); 1979 MEM_WRITE_4(sc, 0x300004, 1); 1980 DELAY(1000); 1981 MEM_WRITE_4(sc, 0x300004, 0); 1982 DELAY(1000); 1983 MEM_WRITE_1(sc, 0x200000, 0x00); 1984 MEM_WRITE_1(sc, 0x200000, 0x40); 1985 DELAY(1000); 1986 1987 /* Adapter is buggy, we must set the address for each word */ 1988 for (w = uc; size > 0; w++, size -= 2) 1989 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1990 1991 MEM_WRITE_1(sc, 0x200000, 0x00); 1992 MEM_WRITE_1(sc, 0x200000, 0x80); 1993 1994 /* Wait until we get a response in the uc queue */ 1995 for (ntries = 0; ntries < 100; ntries++) { 1996 if (MEM_READ_1(sc, 0x200000) & 1) 1997 break; 1998 DELAY(100); 1999 } 2000 if (ntries == 100) { 2001 aprint_error_dev(sc->sc_dev, 2002 "timeout waiting for ucode to initialize\n"); 2003 return ETIMEDOUT; 2004 } 2005 2006 /* Empty the uc queue or the firmware will not initialize properly */ 2007 for (i = 0; i < 7; i++) 2008 MEM_READ_4(sc, 0x200004); 2009 2010 MEM_WRITE_1(sc, 0x200000, 0x00); 2011 2012 return 0; 2013 } 2014 2015 /* macro to handle unaligned little endian data in firmware image */ 2016 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2017 static int 2018 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2019 { 2020 bus_dmamap_t map; 2021 u_char *p, *end; 2022 uint32_t sentinel, ctl, sum; 2023 uint32_t cs, sl, cd, cl; 2024 int ntries, nsegs, error; 2025 int sn; 2026 2027 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2028 2029 /* Create a DMA map for the firmware image */ 2030 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2031 BUS_DMA_NOWAIT, &map); 2032 if (error != 0) { 2033 aprint_error_dev(sc->sc_dev, 2034 "could not create firmware DMA map\n"); 2035 map = NULL; 2036 goto fail1; 2037 } 2038 2039 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2040 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2041 if (error != 0) { 2042 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2043 error); 2044 goto fail2; 2045 } 2046 2047 /* Make sure the adapter will get up-to-date values */ 2048 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2049 2050 /* Tell the adapter where the command blocks are stored */ 2051 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2052 2053 /* 2054 * Store command blocks into adapter's internal memory using register 2055 * indirections. The adapter will read the firmware image through DMA 2056 * using information stored in command blocks. 2057 */ 2058 p = fw; 2059 end = p + size; 2060 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2061 2062 sn = 0; 2063 sl = cl = 0; 2064 cs = cd = 0; 2065 while (p < end) { 2066 if (sl == 0) { 2067 cs = map->dm_segs[sn].ds_addr; 2068 sl = map->dm_segs[sn].ds_len; 2069 sn++; 2070 } 2071 if (cl == 0) { 2072 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2073 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2074 } 2075 while (sl > 0 && cl > 0) { 2076 int len = min(cl, sl); 2077 2078 sl -= len; 2079 cl -= len; 2080 p += len; 2081 2082 while (len > 0) { 2083 int mlen = min(len, IWI_CB_MAXDATALEN); 2084 2085 ctl = IWI_CB_DEFAULT_CTL | mlen; 2086 sum = ctl ^ cs ^ cd; 2087 2088 /* Write a command block */ 2089 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2090 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2091 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2092 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2093 2094 cs += mlen; 2095 cd += mlen; 2096 len -= mlen; 2097 } 2098 } 2099 } 2100 2101 /* Write a fictive final command block (sentinel) */ 2102 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2103 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2104 2105 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2106 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2107 2108 /* Tell the adapter to start processing command blocks */ 2109 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2110 2111 /* Wait until the adapter has processed all command blocks */ 2112 for (ntries = 0; ntries < 400; ntries++) { 2113 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2114 break; 2115 DELAY(100); 2116 } 2117 if (ntries == 400) { 2118 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2119 error = ETIMEDOUT; 2120 goto fail3; 2121 } 2122 2123 /* We're done with command blocks processing */ 2124 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2125 2126 /* Allow interrupts so we know when the firmware is inited */ 2127 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2128 2129 /* Tell the adapter to initialize the firmware */ 2130 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2131 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2132 IWI_CTL_ALLOW_STANDBY); 2133 2134 /* Wait at most one second for firmware initialization to complete */ 2135 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2136 aprint_error_dev(sc->sc_dev, 2137 "timeout waiting for firmware initialization to complete\n"); 2138 goto fail3; 2139 } 2140 2141 fail3: 2142 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2143 bus_dmamap_unload(sc->sc_dmat, map); 2144 fail2: 2145 if (map != NULL) 2146 bus_dmamap_destroy(sc->sc_dmat, map); 2147 2148 fail1: 2149 return error; 2150 } 2151 2152 /* 2153 * Store firmware into kernel memory so we can download it when we need to, 2154 * e.g when the adapter wakes up from suspend mode. 2155 */ 2156 static int 2157 iwi_cache_firmware(struct iwi_softc *sc) 2158 { 2159 struct iwi_firmware *kfw = &sc->fw; 2160 firmware_handle_t fwh; 2161 const struct iwi_firmware_hdr *hdr; 2162 off_t size; 2163 char *fw; 2164 int error; 2165 2166 if (iwi_accept_eula == 0) { 2167 aprint_error_dev(sc->sc_dev, 2168 "EULA not accepted; please see the iwi(4) man page.\n"); 2169 return EPERM; 2170 } 2171 2172 iwi_free_firmware(sc); 2173 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2174 if (error != 0) { 2175 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2176 goto fail1; 2177 } 2178 2179 size = firmware_get_size(fwh); 2180 if (size < sizeof(struct iwi_firmware_hdr)) { 2181 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2182 sc->sc_fwname); 2183 error = EIO; 2184 goto fail1; 2185 } 2186 2187 sc->sc_blob = firmware_malloc(size); 2188 if (sc->sc_blob == NULL) { 2189 error = ENOMEM; 2190 firmware_close(fwh); 2191 goto fail1; 2192 } 2193 2194 error = firmware_read(fwh, 0, sc->sc_blob, size); 2195 firmware_close(fwh); 2196 if (error != 0) 2197 goto fail2; 2198 2199 2200 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2201 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2202 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2203 sc->sc_fwname); 2204 error = EIO; 2205 goto fail2; 2206 } 2207 2208 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2209 DPRINTF(("firmware version = %d\n", le32toh(hdr->version))); 2210 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2211 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2212 aprint_error_dev(sc->sc_dev, 2213 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2214 IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2215 IWI_FW_GET_MINOR(le32toh(hdr->version)), 2216 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2217 error = EIO; 2218 goto fail2; 2219 } 2220 2221 kfw->boot_size = hdr->bsize; 2222 kfw->ucode_size = hdr->usize; 2223 kfw->main_size = hdr->fsize; 2224 2225 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2226 kfw->boot = fw; 2227 fw += kfw->boot_size; 2228 kfw->ucode = fw; 2229 fw += kfw->ucode_size; 2230 kfw->main = fw; 2231 2232 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2233 kfw->boot, kfw->ucode, kfw->main)); 2234 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2235 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2236 2237 sc->flags |= IWI_FLAG_FW_CACHED; 2238 2239 return 0; 2240 2241 2242 fail2: firmware_free(sc->sc_blob, 0); 2243 fail1: 2244 return error; 2245 } 2246 2247 static void 2248 iwi_free_firmware(struct iwi_softc *sc) 2249 { 2250 2251 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2252 return; 2253 2254 firmware_free(sc->sc_blob, 0); 2255 2256 sc->flags &= ~IWI_FLAG_FW_CACHED; 2257 } 2258 2259 static int 2260 iwi_config(struct iwi_softc *sc) 2261 { 2262 struct ieee80211com *ic = &sc->sc_ic; 2263 struct ifnet *ifp = &sc->sc_if; 2264 struct iwi_configuration config; 2265 struct iwi_rateset rs; 2266 struct iwi_txpower power; 2267 struct ieee80211_key *wk; 2268 struct iwi_wep_key wepkey; 2269 uint32_t data; 2270 int error, nchan, i; 2271 2272 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2273 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2274 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2275 IEEE80211_ADDR_LEN, 0); 2276 if (error != 0) 2277 return error; 2278 2279 memset(&config, 0, sizeof config); 2280 config.bluetooth_coexistence = sc->bluetooth; 2281 config.antenna = sc->antenna; 2282 config.silence_threshold = 0x1e; 2283 config.multicast_enabled = 1; 2284 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2285 config.disable_unicast_decryption = 1; 2286 config.disable_multicast_decryption = 1; 2287 DPRINTF(("Configuring adapter\n")); 2288 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2289 0); 2290 if (error != 0) 2291 return error; 2292 2293 data = htole32(IWI_POWER_MODE_CAM); 2294 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2295 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2296 if (error != 0) 2297 return error; 2298 2299 data = htole32(ic->ic_rtsthreshold); 2300 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2301 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2302 if (error != 0) 2303 return error; 2304 2305 data = htole32(ic->ic_fragthreshold); 2306 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2307 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2308 if (error != 0) 2309 return error; 2310 2311 /* 2312 * Set default Tx power for 802.11b/g and 802.11a channels. 2313 */ 2314 nchan = 0; 2315 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2316 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2317 continue; 2318 power.chan[nchan].chan = i; 2319 power.chan[nchan].power = IWI_TXPOWER_MAX; 2320 nchan++; 2321 } 2322 power.nchan = nchan; 2323 2324 power.mode = IWI_MODE_11G; 2325 DPRINTF(("Setting .11g channels tx power\n")); 2326 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2327 if (error != 0) 2328 return error; 2329 2330 power.mode = IWI_MODE_11B; 2331 DPRINTF(("Setting .11b channels tx power\n")); 2332 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2333 if (error != 0) 2334 return error; 2335 2336 nchan = 0; 2337 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2338 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2339 continue; 2340 power.chan[nchan].chan = i; 2341 power.chan[nchan].power = IWI_TXPOWER_MAX; 2342 nchan++; 2343 } 2344 power.nchan = nchan; 2345 2346 if (nchan > 0) { /* 2915ABG only */ 2347 power.mode = IWI_MODE_11A; 2348 DPRINTF(("Setting .11a channels tx power\n")); 2349 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2350 0); 2351 if (error != 0) 2352 return error; 2353 } 2354 2355 rs.mode = IWI_MODE_11G; 2356 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2357 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2358 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2359 rs.nrates); 2360 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2361 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2362 if (error != 0) 2363 return error; 2364 2365 rs.mode = IWI_MODE_11A; 2366 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2367 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2368 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2369 rs.nrates); 2370 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2371 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2372 if (error != 0) 2373 return error; 2374 2375 /* if we have a desired ESSID, set it now */ 2376 if (ic->ic_des_esslen != 0) { 2377 #ifdef IWI_DEBUG 2378 if (iwi_debug > 0) { 2379 printf("Setting desired ESSID to "); 2380 ieee80211_print_essid(ic->ic_des_essid, 2381 ic->ic_des_esslen); 2382 printf("\n"); 2383 } 2384 #endif 2385 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2386 ic->ic_des_esslen, 0); 2387 if (error != 0) 2388 return error; 2389 } 2390 2391 data = htole32(arc4random()); 2392 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2393 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2394 if (error != 0) 2395 return error; 2396 2397 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2398 /* XXX iwi_setwepkeys? */ 2399 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2400 wk = &ic->ic_crypto.cs_nw_keys[i]; 2401 2402 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2403 wepkey.idx = i; 2404 wepkey.len = wk->wk_keylen; 2405 memset(wepkey.key, 0, sizeof wepkey.key); 2406 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2407 DPRINTF(("Setting wep key index %u len %u\n", 2408 wepkey.idx, wepkey.len)); 2409 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2410 sizeof wepkey, 0); 2411 if (error != 0) 2412 return error; 2413 } 2414 } 2415 2416 /* Enable adapter */ 2417 DPRINTF(("Enabling adapter\n")); 2418 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2419 } 2420 2421 static int 2422 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2423 { 2424 struct ieee80211com *ic = &sc->sc_ic; 2425 struct iwi_scan_v2 scan; 2426 2427 (void)memset(&scan, 0, sizeof scan); 2428 2429 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2430 scan.channels[0] = 1 | 2431 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2432 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2433 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2434 2435 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2436 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2437 } 2438 2439 static int 2440 iwi_scan(struct iwi_softc *sc) 2441 { 2442 struct ieee80211com *ic = &sc->sc_ic; 2443 struct iwi_scan_v2 scan; 2444 uint32_t type; 2445 uint8_t *p; 2446 int i, count, idx; 2447 2448 (void)memset(&scan, 0, sizeof scan); 2449 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2450 htole16(sc->dwelltime); 2451 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2452 htole16(sc->dwelltime); 2453 2454 /* tell the firmware about the desired essid */ 2455 if (ic->ic_des_esslen) { 2456 int error; 2457 2458 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2459 __func__, ic->ic_des_essid)); 2460 2461 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2462 ic->ic_des_essid, ic->ic_des_esslen, 1); 2463 if (error) 2464 return error; 2465 2466 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2467 } else { 2468 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2469 } 2470 2471 p = &scan.channels[0]; 2472 count = idx = 0; 2473 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2474 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2475 isset(ic->ic_chan_active, i)) { 2476 *++p = i; 2477 count++; 2478 idx++; 2479 iwi_scan_type_set(scan, idx, type); 2480 } 2481 } 2482 if (count) { 2483 *(p - count) = IWI_CHAN_5GHZ | count; 2484 p++; 2485 } 2486 2487 count = 0; 2488 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2489 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2490 isset(ic->ic_chan_active, i)) { 2491 *++p = i; 2492 count++; 2493 idx++; 2494 iwi_scan_type_set(scan, idx, type); 2495 } 2496 } 2497 *(p - count) = IWI_CHAN_2GHZ | count; 2498 2499 DPRINTF(("Start scanning\n")); 2500 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2501 } 2502 2503 static int 2504 iwi_auth_and_assoc(struct iwi_softc *sc) 2505 { 2506 struct ieee80211com *ic = &sc->sc_ic; 2507 struct ieee80211_node *ni = ic->ic_bss; 2508 struct ifnet *ifp = &sc->sc_if; 2509 struct ieee80211_wme_info wme; 2510 struct iwi_configuration config; 2511 struct iwi_associate assoc; 2512 struct iwi_rateset rs; 2513 uint16_t capinfo; 2514 uint32_t data; 2515 int error; 2516 2517 memset(&config, 0, sizeof config); 2518 config.bluetooth_coexistence = sc->bluetooth; 2519 config.antenna = sc->antenna; 2520 config.multicast_enabled = 1; 2521 config.silence_threshold = 0x1e; 2522 if (ic->ic_curmode == IEEE80211_MODE_11G) 2523 config.use_protection = 1; 2524 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2525 config.disable_unicast_decryption = 1; 2526 config.disable_multicast_decryption = 1; 2527 2528 DPRINTF(("Configuring adapter\n")); 2529 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2530 sizeof config, 1); 2531 if (error != 0) 2532 return error; 2533 2534 #ifdef IWI_DEBUG 2535 if (iwi_debug > 0) { 2536 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2537 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2538 aprint_debug("\n"); 2539 } 2540 #endif 2541 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2542 if (error != 0) 2543 return error; 2544 2545 /* the rate set has already been "negotiated" */ 2546 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2547 IWI_MODE_11G; 2548 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2549 rs.nrates = ni->ni_rates.rs_nrates; 2550 2551 if (rs.nrates > IWI_RATESET_SIZE) { 2552 DPRINTF(("Truncating negotiated rate set from %u\n", 2553 rs.nrates)); 2554 rs.nrates = IWI_RATESET_SIZE; 2555 } 2556 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2557 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2558 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2559 if (error != 0) 2560 return error; 2561 2562 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2563 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2564 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2565 wme.wme_oui[0] = 0x00; 2566 wme.wme_oui[1] = 0x50; 2567 wme.wme_oui[2] = 0xf2; 2568 wme.wme_type = WME_OUI_TYPE; 2569 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2570 wme.wme_version = WME_VERSION; 2571 wme.wme_info = 0; 2572 2573 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2574 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2575 if (error != 0) 2576 return error; 2577 } 2578 2579 if (ic->ic_opt_ie != NULL) { 2580 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2581 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2582 ic->ic_opt_ie_len, 1); 2583 if (error != 0) 2584 return error; 2585 } 2586 data = htole32(ni->ni_rssi); 2587 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2588 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2589 if (error != 0) 2590 return error; 2591 2592 memset(&assoc, 0, sizeof assoc); 2593 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2594 assoc.mode = IWI_MODE_11A; 2595 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2596 assoc.mode = IWI_MODE_11G; 2597 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2598 assoc.mode = IWI_MODE_11B; 2599 2600 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2601 2602 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2603 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2604 2605 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2606 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2607 2608 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2609 assoc.policy |= htole16(IWI_POLICY_WME); 2610 if (ic->ic_flags & IEEE80211_F_WPA) 2611 assoc.policy |= htole16(IWI_POLICY_WPA); 2612 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2613 assoc.type = IWI_HC_IBSS_START; 2614 else 2615 assoc.type = IWI_HC_ASSOC; 2616 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2617 2618 if (ic->ic_opmode == IEEE80211_M_IBSS) 2619 capinfo = IEEE80211_CAPINFO_IBSS; 2620 else 2621 capinfo = IEEE80211_CAPINFO_ESS; 2622 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2623 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2624 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2625 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2626 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2627 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2628 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2629 assoc.capinfo = htole16(capinfo); 2630 2631 assoc.lintval = htole16(ic->ic_lintval); 2632 assoc.intval = htole16(ni->ni_intval); 2633 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2634 if (ic->ic_opmode == IEEE80211_M_IBSS) 2635 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2636 else 2637 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2638 2639 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2640 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2641 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2642 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2643 assoc.chan, le16toh(assoc.policy), assoc.auth, 2644 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2645 le16toh(assoc.intval))); 2646 2647 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2648 } 2649 2650 static int 2651 iwi_init(struct ifnet *ifp) 2652 { 2653 struct iwi_softc *sc = ifp->if_softc; 2654 struct ieee80211com *ic = &sc->sc_ic; 2655 struct iwi_firmware *fw = &sc->fw; 2656 int i, error; 2657 2658 /* exit immediately if firmware has not been ioctl'd */ 2659 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2660 if ((error = iwi_cache_firmware(sc)) != 0) { 2661 aprint_error_dev(sc->sc_dev, 2662 "could not cache the firmware\n"); 2663 goto fail; 2664 } 2665 } 2666 2667 iwi_stop(ifp, 0); 2668 2669 if ((error = iwi_reset(sc)) != 0) { 2670 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2671 goto fail; 2672 } 2673 2674 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2675 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2676 goto fail; 2677 } 2678 2679 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2680 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2681 goto fail; 2682 } 2683 2684 iwi_stop_master(sc); 2685 2686 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2687 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2688 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2689 2690 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2691 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2692 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2693 2694 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2695 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2696 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2697 2698 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2699 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2700 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2701 2702 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2703 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2704 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2705 2706 for (i = 0; i < sc->rxq.count; i++) 2707 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2708 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2709 2710 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2711 2712 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2713 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2714 goto fail; 2715 } 2716 2717 sc->flags |= IWI_FLAG_FW_INITED; 2718 2719 if ((error = iwi_config(sc)) != 0) { 2720 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2721 goto fail; 2722 } 2723 2724 ic->ic_state = IEEE80211_S_INIT; 2725 2726 ifp->if_flags &= ~IFF_OACTIVE; 2727 ifp->if_flags |= IFF_RUNNING; 2728 2729 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2730 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2731 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2732 } else 2733 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2734 2735 return 0; 2736 2737 fail: ifp->if_flags &= ~IFF_UP; 2738 iwi_stop(ifp, 0); 2739 2740 return error; 2741 } 2742 2743 2744 /* 2745 * Return whether or not the radio is enabled in hardware 2746 * (i.e. the rfkill switch is "off"). 2747 */ 2748 static int 2749 iwi_getrfkill(struct iwi_softc *sc) 2750 { 2751 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2752 } 2753 2754 static int 2755 iwi_sysctl_radio(SYSCTLFN_ARGS) 2756 { 2757 struct sysctlnode node; 2758 struct iwi_softc *sc; 2759 int val, error; 2760 2761 node = *rnode; 2762 sc = (struct iwi_softc *)node.sysctl_data; 2763 2764 val = !iwi_getrfkill(sc); 2765 2766 node.sysctl_data = &val; 2767 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2768 2769 if (error || newp == NULL) 2770 return error; 2771 2772 return 0; 2773 } 2774 2775 #ifdef IWI_DEBUG 2776 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2777 { 2778 int rc; 2779 const struct sysctlnode *rnode; 2780 const struct sysctlnode *cnode; 2781 2782 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2783 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2784 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2785 goto err; 2786 2787 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2788 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2789 SYSCTL_DESCR("iwi global controls"), 2790 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2791 goto err; 2792 2793 /* control debugging printfs */ 2794 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2795 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2796 "debug", SYSCTL_DESCR("Enable debugging output"), 2797 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2798 goto err; 2799 2800 return; 2801 err: 2802 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2803 } 2804 2805 #endif /* IWI_DEBUG */ 2806 2807 /* 2808 * Add sysctl knobs. 2809 */ 2810 static void 2811 iwi_sysctlattach(struct iwi_softc *sc) 2812 { 2813 int rc; 2814 const struct sysctlnode *rnode; 2815 const struct sysctlnode *cnode; 2816 2817 struct sysctllog **clog = &sc->sc_sysctllog; 2818 2819 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2820 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2821 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2822 goto err; 2823 2824 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2825 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2826 SYSCTL_DESCR("iwi controls and statistics"), 2827 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2828 goto err; 2829 2830 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2831 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2832 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2833 iwi_sysctl_radio, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2834 goto err; 2835 2836 sc->dwelltime = 100; 2837 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2838 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2839 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2840 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2841 goto err; 2842 2843 sc->bluetooth = 0; 2844 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2845 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2846 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2847 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2848 goto err; 2849 2850 sc->antenna = IWI_ANTENNA_AUTO; 2851 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2852 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2853 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2854 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2855 goto err; 2856 2857 return; 2858 err: 2859 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2860 } 2861 2862 static void 2863 iwi_stop(struct ifnet *ifp, int disable) 2864 { 2865 struct iwi_softc *sc = ifp->if_softc; 2866 struct ieee80211com *ic = &sc->sc_ic; 2867 2868 IWI_LED_OFF(sc); 2869 2870 iwi_stop_master(sc); 2871 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2872 2873 /* reset rings */ 2874 iwi_reset_cmd_ring(sc, &sc->cmdq); 2875 iwi_reset_tx_ring(sc, &sc->txq[0]); 2876 iwi_reset_tx_ring(sc, &sc->txq[1]); 2877 iwi_reset_tx_ring(sc, &sc->txq[2]); 2878 iwi_reset_tx_ring(sc, &sc->txq[3]); 2879 iwi_reset_rx_ring(sc, &sc->rxq); 2880 2881 ifp->if_timer = 0; 2882 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2883 2884 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2885 } 2886 2887 static void 2888 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2889 { 2890 uint32_t val; 2891 2892 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2893 2894 switch (sc->nictype) { 2895 case 1: 2896 /* special NIC type: reversed leds */ 2897 if (state == IWI_LED_ACTIVITY) { 2898 state &= ~IWI_LED_ACTIVITY; 2899 state |= IWI_LED_ASSOCIATED; 2900 } else if (state == IWI_LED_ASSOCIATED) { 2901 state &= ~IWI_LED_ASSOCIATED; 2902 state |= IWI_LED_ACTIVITY; 2903 } 2904 /* and ignore toggle effect */ 2905 val |= state; 2906 break; 2907 case 0: 2908 case 2: 2909 case 3: 2910 case 4: 2911 val = (toggle && (val & state)) ? val & ~state : val | state; 2912 break; 2913 default: 2914 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2915 sc->nictype); 2916 return; 2917 break; 2918 } 2919 2920 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2921 2922 return; 2923 } 2924 2925 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2926 { 2927 const struct sysctlnode *rnode; 2928 const struct sysctlnode *cnode; 2929 2930 sysctl_createv(NULL, 0, NULL, &rnode, 2931 CTLFLAG_PERMANENT, 2932 CTLTYPE_NODE, "hw", 2933 NULL, 2934 NULL, 0, 2935 NULL, 0, 2936 CTL_HW, CTL_EOL); 2937 2938 sysctl_createv(NULL, 0, &rnode, &rnode, 2939 CTLFLAG_PERMANENT, 2940 CTLTYPE_NODE, "iwi", 2941 NULL, 2942 NULL, 0, 2943 NULL, 0, 2944 CTL_CREATE, CTL_EOL); 2945 2946 sysctl_createv(NULL, 0, &rnode, &cnode, 2947 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2948 CTLTYPE_INT, "accept_eula", 2949 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2950 NULL, 0, 2951 &iwi_accept_eula, sizeof(iwi_accept_eula), 2952 CTL_CREATE, CTL_EOL); 2953 } 2954