1 /* $NetBSD: if_iwi.c,v 1.88 2011/11/19 22:51:23 tls 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 1.88 2011/11/19 22:51:23 tls 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 int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 121 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 122 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 123 int); 124 static void iwi_start(struct ifnet *); 125 static void iwi_watchdog(struct ifnet *); 126 127 static int iwi_alloc_unr(struct iwi_softc *); 128 static void iwi_free_unr(struct iwi_softc *, int); 129 130 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 131 132 static int iwi_ioctl(struct ifnet *, u_long, void *); 133 static void iwi_stop_master(struct iwi_softc *); 134 static int iwi_reset(struct iwi_softc *); 135 static int iwi_load_ucode(struct iwi_softc *, void *, int); 136 static int iwi_load_firmware(struct iwi_softc *, void *, int); 137 static int iwi_cache_firmware(struct iwi_softc *); 138 static void iwi_free_firmware(struct iwi_softc *); 139 static int iwi_config(struct iwi_softc *); 140 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 141 static int iwi_scan(struct iwi_softc *); 142 static int iwi_auth_and_assoc(struct iwi_softc *); 143 static int iwi_init(struct ifnet *); 144 static void iwi_stop(struct ifnet *, int); 145 static int iwi_getrfkill(struct iwi_softc *); 146 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 147 static void iwi_sysctlattach(struct iwi_softc *); 148 149 /* 150 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 151 */ 152 static const struct ieee80211_rateset iwi_rateset_11a = 153 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 154 155 static const struct ieee80211_rateset iwi_rateset_11b = 156 { 4, { 2, 4, 11, 22 } }; 157 158 static const struct ieee80211_rateset iwi_rateset_11g = 159 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 160 161 static inline uint8_t 162 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 163 { 164 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 165 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 166 } 167 168 static inline uint32_t 169 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 170 { 171 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 172 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 173 } 174 175 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 176 iwi_detach, NULL); 177 178 static int 179 iwi_match(device_t parent, cfdata_t match, void *aux) 180 { 181 struct pci_attach_args *pa = aux; 182 183 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 184 return 0; 185 186 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 187 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 190 return 1; 191 192 return 0; 193 } 194 195 /* Base Address Register */ 196 #define IWI_PCI_BAR0 0x10 197 198 static void 199 iwi_attach(device_t parent, device_t self, void *aux) 200 { 201 struct iwi_softc *sc = device_private(self); 202 struct ieee80211com *ic = &sc->sc_ic; 203 struct ifnet *ifp = &sc->sc_if; 204 struct pci_attach_args *pa = aux; 205 const char *intrstr; 206 char devinfo[256]; 207 bus_space_tag_t memt; 208 bus_space_handle_t memh; 209 pci_intr_handle_t ih; 210 pcireg_t data; 211 uint16_t val; 212 int error, revision, i; 213 214 sc->sc_dev = self; 215 sc->sc_pct = pa->pa_pc; 216 sc->sc_pcitag = pa->pa_tag; 217 218 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof devinfo); 219 revision = PCI_REVISION(pa->pa_class); 220 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 221 222 /* clear unit numbers allocated to IBSS */ 223 sc->sc_unr = 0; 224 225 /* power up chip */ 226 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 227 NULL)) && error != EOPNOTSUPP) { 228 aprint_error_dev(self, "cannot activate %d\n", error); 229 return; 230 } 231 232 /* clear device specific PCI configuration register 0x41 */ 233 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 234 data &= ~0x0000ff00; 235 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 236 237 238 /* enable bus-mastering */ 239 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 240 data |= PCI_COMMAND_MASTER_ENABLE; 241 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 242 243 /* map the register window */ 244 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 245 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 246 if (error != 0) { 247 aprint_error_dev(self, "could not map memory space\n"); 248 return; 249 } 250 251 sc->sc_st = memt; 252 sc->sc_sh = memh; 253 sc->sc_dmat = pa->pa_dmat; 254 255 /* disable interrupts */ 256 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 257 258 if (pci_intr_map(pa, &ih) != 0) { 259 aprint_error_dev(self, "could not map interrupt\n"); 260 return; 261 } 262 263 intrstr = pci_intr_string(sc->sc_pct, ih); 264 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 265 if (sc->sc_ih == NULL) { 266 aprint_error_dev(self, "could not establish interrupt"); 267 if (intrstr != NULL) 268 aprint_error(" at %s", intrstr); 269 aprint_error("\n"); 270 return; 271 } 272 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 273 274 if (iwi_reset(sc) != 0) { 275 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 276 aprint_error_dev(self, "could not reset adapter\n"); 277 return; 278 } 279 280 ic->ic_ifp = ifp; 281 ic->ic_wme.wme_update = iwi_wme_update; 282 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 283 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 284 ic->ic_state = IEEE80211_S_INIT; 285 286 sc->sc_fwname = "ipw2200-bss.fw"; 287 288 /* set device capabilities */ 289 ic->ic_caps = 290 IEEE80211_C_IBSS | /* IBSS mode supported */ 291 IEEE80211_C_MONITOR | /* monitor mode supported */ 292 IEEE80211_C_TXPMGT | /* tx power management */ 293 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 294 IEEE80211_C_SHSLOT | /* short slot time supported */ 295 IEEE80211_C_WPA | /* 802.11i */ 296 IEEE80211_C_WME; /* 802.11e */ 297 298 /* read MAC address from EEPROM */ 299 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 300 ic->ic_myaddr[0] = val & 0xff; 301 ic->ic_myaddr[1] = val >> 8; 302 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 303 ic->ic_myaddr[2] = val & 0xff; 304 ic->ic_myaddr[3] = val >> 8; 305 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 306 ic->ic_myaddr[4] = val & 0xff; 307 ic->ic_myaddr[5] = val >> 8; 308 309 aprint_verbose_dev(self, "802.11 address %s\n", 310 ether_sprintf(ic->ic_myaddr)); 311 312 /* read the NIC type from EEPROM */ 313 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 314 sc->nictype = val & 0xff; 315 316 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 317 318 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 319 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 320 /* set supported .11a rates (2915ABG only) */ 321 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 322 323 /* set supported .11a channels */ 324 for (i = 36; i <= 64; i += 4) { 325 ic->ic_channels[i].ic_freq = 326 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 327 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 328 } 329 for (i = 149; i <= 165; i += 4) { 330 ic->ic_channels[i].ic_freq = 331 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 332 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 333 } 334 } 335 336 /* set supported .11b and .11g rates */ 337 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 338 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 339 340 /* set supported .11b and .11g channels (1 through 14) */ 341 for (i = 1; i <= 14; i++) { 342 ic->ic_channels[i].ic_freq = 343 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 344 ic->ic_channels[i].ic_flags = 345 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 346 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 347 } 348 349 ifp->if_softc = sc; 350 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 351 ifp->if_init = iwi_init; 352 ifp->if_stop = iwi_stop; 353 ifp->if_ioctl = iwi_ioctl; 354 ifp->if_start = iwi_start; 355 ifp->if_watchdog = iwi_watchdog; 356 IFQ_SET_READY(&ifp->if_snd); 357 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 358 359 if_attach(ifp); 360 ieee80211_ifattach(ic); 361 /* override default methods */ 362 ic->ic_node_alloc = iwi_node_alloc; 363 sc->sc_node_free = ic->ic_node_free; 364 ic->ic_node_free = iwi_node_free; 365 /* override state transition machine */ 366 sc->sc_newstate = ic->ic_newstate; 367 ic->ic_newstate = iwi_newstate; 368 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 369 370 /* 371 * Allocate rings. 372 */ 373 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 374 aprint_error_dev(self, "could not allocate command ring\n"); 375 goto fail; 376 } 377 378 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 379 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 380 if (error != 0) { 381 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 382 goto fail; 383 } 384 385 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 386 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 387 if (error != 0) { 388 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 389 goto fail; 390 } 391 392 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 393 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 394 if (error != 0) { 395 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 396 goto fail; 397 } 398 399 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 400 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 401 if (error != 0) { 402 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 403 goto fail; 404 } 405 406 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 407 aprint_error_dev(self, "could not allocate Rx ring\n"); 408 goto fail; 409 } 410 411 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 412 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 413 414 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 415 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 416 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 417 418 sc->sc_txtap_len = sizeof sc->sc_txtapu; 419 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 420 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 421 422 iwi_sysctlattach(sc); 423 424 if (pmf_device_register(self, NULL, NULL)) 425 pmf_class_network_register(self, ifp); 426 else 427 aprint_error_dev(self, "couldn't establish power handler\n"); 428 429 ieee80211_announce(ic); 430 431 return; 432 433 fail: iwi_detach(self, 0); 434 } 435 436 static int 437 iwi_detach(device_t self, int flags) 438 { 439 struct iwi_softc *sc = device_private(self); 440 struct ifnet *ifp = &sc->sc_if; 441 442 pmf_device_deregister(self); 443 444 if (ifp != NULL) 445 iwi_stop(ifp, 1); 446 447 iwi_free_firmware(sc); 448 449 ieee80211_ifdetach(&sc->sc_ic); 450 if (ifp != NULL) 451 if_detach(ifp); 452 453 iwi_free_cmd_ring(sc, &sc->cmdq); 454 iwi_free_tx_ring(sc, &sc->txq[0]); 455 iwi_free_tx_ring(sc, &sc->txq[1]); 456 iwi_free_tx_ring(sc, &sc->txq[2]); 457 iwi_free_tx_ring(sc, &sc->txq[3]); 458 iwi_free_rx_ring(sc, &sc->rxq); 459 460 if (sc->sc_ih != NULL) { 461 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 462 sc->sc_ih = NULL; 463 } 464 465 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 466 467 return 0; 468 } 469 470 static int 471 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 472 int count) 473 { 474 int error, nsegs; 475 476 ring->count = count; 477 ring->queued = 0; 478 ring->cur = ring->next = 0; 479 480 /* 481 * Allocate and map command ring 482 */ 483 error = bus_dmamap_create(sc->sc_dmat, 484 IWI_CMD_DESC_SIZE * count, 1, 485 IWI_CMD_DESC_SIZE * count, 0, 486 BUS_DMA_NOWAIT, &ring->desc_map); 487 if (error != 0) { 488 aprint_error_dev(sc->sc_dev, 489 "could not create command ring DMA map\n"); 490 ring->desc_map = NULL; 491 goto fail; 492 } 493 494 error = bus_dmamem_alloc(sc->sc_dmat, 495 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 496 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 497 if (error != 0) { 498 aprint_error_dev(sc->sc_dev, 499 "could not allocate command ring DMA memory\n"); 500 goto fail; 501 } 502 503 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 504 IWI_CMD_DESC_SIZE * count, 505 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 506 if (error != 0) { 507 aprint_error_dev(sc->sc_dev, 508 "could not map command ring DMA memory\n"); 509 goto fail; 510 } 511 512 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 513 IWI_CMD_DESC_SIZE * count, NULL, 514 BUS_DMA_NOWAIT); 515 if (error != 0) { 516 aprint_error_dev(sc->sc_dev, 517 "could not load command ring DMA map\n"); 518 goto fail; 519 } 520 521 memset(sc->cmdq.desc, 0, 522 IWI_CMD_DESC_SIZE * count); 523 524 return 0; 525 526 fail: return error; 527 } 528 529 static void 530 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 531 { 532 int i; 533 534 for (i = ring->next; i != ring->cur;) { 535 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 536 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 537 BUS_DMASYNC_POSTWRITE); 538 539 wakeup(&ring->desc[i]); 540 i = (i + 1) % ring->count; 541 } 542 543 ring->queued = 0; 544 ring->cur = ring->next = 0; 545 } 546 547 static void 548 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 549 { 550 if (ring->desc_map != NULL) { 551 if (ring->desc != NULL) { 552 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 553 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 554 IWI_CMD_DESC_SIZE * ring->count); 555 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 556 } 557 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 558 } 559 } 560 561 static int 562 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 563 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 564 { 565 int i, error, nsegs; 566 567 ring->count = 0; 568 ring->queued = 0; 569 ring->cur = ring->next = 0; 570 ring->csr_ridx = csr_ridx; 571 ring->csr_widx = csr_widx; 572 573 /* 574 * Allocate and map Tx ring 575 */ 576 error = bus_dmamap_create(sc->sc_dmat, 577 IWI_TX_DESC_SIZE * count, 1, 578 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 579 &ring->desc_map); 580 if (error != 0) { 581 aprint_error_dev(sc->sc_dev, 582 "could not create tx ring DMA map\n"); 583 ring->desc_map = NULL; 584 goto fail; 585 } 586 587 error = bus_dmamem_alloc(sc->sc_dmat, 588 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 589 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 590 if (error != 0) { 591 aprint_error_dev(sc->sc_dev, 592 "could not allocate tx ring DMA memory\n"); 593 goto fail; 594 } 595 596 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 597 IWI_TX_DESC_SIZE * count, 598 (void **)&ring->desc, BUS_DMA_NOWAIT); 599 if (error != 0) { 600 aprint_error_dev(sc->sc_dev, 601 "could not map tx ring DMA memory\n"); 602 goto fail; 603 } 604 605 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 606 IWI_TX_DESC_SIZE * count, NULL, 607 BUS_DMA_NOWAIT); 608 if (error != 0) { 609 aprint_error_dev(sc->sc_dev, 610 "could not load tx ring DMA map\n"); 611 goto fail; 612 } 613 614 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 615 616 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 617 M_NOWAIT | M_ZERO); 618 if (ring->data == NULL) { 619 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 620 error = ENOMEM; 621 goto fail; 622 } 623 ring->count = count; 624 625 /* 626 * Allocate Tx buffers DMA maps 627 */ 628 for (i = 0; i < count; i++) { 629 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 630 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 631 if (error != 0) { 632 aprint_error_dev(sc->sc_dev, 633 "could not create tx buf DMA map"); 634 ring->data[i].map = NULL; 635 goto fail; 636 } 637 } 638 return 0; 639 640 fail: return error; 641 } 642 643 static void 644 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 645 { 646 struct iwi_tx_data *data; 647 int i; 648 649 for (i = 0; i < ring->count; i++) { 650 data = &ring->data[i]; 651 652 if (data->m != NULL) { 653 m_freem(data->m); 654 data->m = NULL; 655 } 656 657 if (data->map != NULL) { 658 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 659 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 660 bus_dmamap_unload(sc->sc_dmat, data->map); 661 } 662 663 if (data->ni != NULL) { 664 ieee80211_free_node(data->ni); 665 data->ni = NULL; 666 } 667 } 668 669 ring->queued = 0; 670 ring->cur = ring->next = 0; 671 } 672 673 static void 674 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 675 { 676 int i; 677 struct iwi_tx_data *data; 678 679 if (ring->desc_map != NULL) { 680 if (ring->desc != NULL) { 681 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 682 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 683 IWI_TX_DESC_SIZE * ring->count); 684 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 685 } 686 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 687 } 688 689 for (i = 0; i < ring->count; i++) { 690 data = &ring->data[i]; 691 692 if (data->m != NULL) { 693 m_freem(data->m); 694 } 695 696 if (data->map != NULL) { 697 bus_dmamap_unload(sc->sc_dmat, data->map); 698 bus_dmamap_destroy(sc->sc_dmat, data->map); 699 } 700 } 701 } 702 703 static int 704 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 705 { 706 int i, error; 707 708 ring->count = 0; 709 ring->cur = 0; 710 711 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 712 M_NOWAIT | M_ZERO); 713 if (ring->data == NULL) { 714 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 715 error = ENOMEM; 716 goto fail; 717 } 718 719 ring->count = count; 720 721 /* 722 * Allocate and map Rx buffers 723 */ 724 for (i = 0; i < count; i++) { 725 726 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 727 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 728 if (error != 0) { 729 aprint_error_dev(sc->sc_dev, 730 "could not create rx buf DMA map"); 731 ring->data[i].map = NULL; 732 goto fail; 733 } 734 735 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 736 error = ENOMEM; 737 goto fail; 738 } 739 740 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 741 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 742 if (error != 0) { 743 aprint_error_dev(sc->sc_dev, 744 "could not load rx buffer DMA map\n"); 745 goto fail; 746 } 747 748 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 749 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 750 } 751 752 return 0; 753 754 fail: return error; 755 } 756 757 static void 758 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 759 { 760 ring->cur = 0; 761 } 762 763 static void 764 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 765 { 766 int i; 767 struct iwi_rx_data *data; 768 769 for (i = 0; i < ring->count; i++) { 770 data = &ring->data[i]; 771 772 if (data->m != NULL) { 773 m_freem(data->m); 774 } 775 776 if (data->map != NULL) { 777 bus_dmamap_unload(sc->sc_dmat, data->map); 778 bus_dmamap_destroy(sc->sc_dmat, data->map); 779 } 780 781 } 782 } 783 784 static struct ieee80211_node * 785 iwi_node_alloc(struct ieee80211_node_table *nt) 786 { 787 struct iwi_node *in; 788 789 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 790 if (in == NULL) 791 return NULL; 792 793 in->in_station = -1; 794 795 return &in->in_node; 796 } 797 798 static int 799 iwi_alloc_unr(struct iwi_softc *sc) 800 { 801 int i; 802 803 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 804 if ((sc->sc_unr & (1 << i)) == 0) { 805 sc->sc_unr |= 1 << i; 806 return i; 807 } 808 809 return -1; 810 } 811 812 static void 813 iwi_free_unr(struct iwi_softc *sc, int r) 814 { 815 816 sc->sc_unr &= 1 << r; 817 } 818 819 static void 820 iwi_node_free(struct ieee80211_node *ni) 821 { 822 struct ieee80211com *ic = ni->ni_ic; 823 struct iwi_softc *sc = ic->ic_ifp->if_softc; 824 struct iwi_node *in = (struct iwi_node *)ni; 825 826 if (in->in_station != -1) 827 iwi_free_unr(sc, in->in_station); 828 829 sc->sc_node_free(ni); 830 } 831 832 static int 833 iwi_media_change(struct ifnet *ifp) 834 { 835 int error; 836 837 error = ieee80211_media_change(ifp); 838 if (error != ENETRESET) 839 return error; 840 841 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 842 iwi_init(ifp); 843 844 return 0; 845 } 846 847 /* 848 * Convert h/w rate code to IEEE rate code. 849 */ 850 static int 851 iwi_cvtrate(int iwirate) 852 { 853 switch (iwirate) { 854 case IWI_RATE_DS1: return 2; 855 case IWI_RATE_DS2: return 4; 856 case IWI_RATE_DS5: return 11; 857 case IWI_RATE_DS11: return 22; 858 case IWI_RATE_OFDM6: return 12; 859 case IWI_RATE_OFDM9: return 18; 860 case IWI_RATE_OFDM12: return 24; 861 case IWI_RATE_OFDM18: return 36; 862 case IWI_RATE_OFDM24: return 48; 863 case IWI_RATE_OFDM36: return 72; 864 case IWI_RATE_OFDM48: return 96; 865 case IWI_RATE_OFDM54: return 108; 866 } 867 return 0; 868 } 869 870 /* 871 * The firmware automatically adapts the transmit speed. We report its current 872 * value here. 873 */ 874 static void 875 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 876 { 877 struct iwi_softc *sc = ifp->if_softc; 878 struct ieee80211com *ic = &sc->sc_ic; 879 int rate; 880 881 imr->ifm_status = IFM_AVALID; 882 imr->ifm_active = IFM_IEEE80211; 883 if (ic->ic_state == IEEE80211_S_RUN) 884 imr->ifm_status |= IFM_ACTIVE; 885 886 /* read current transmission rate from adapter */ 887 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 888 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 889 890 switch (ic->ic_opmode) { 891 case IEEE80211_M_STA: 892 break; 893 894 case IEEE80211_M_IBSS: 895 imr->ifm_active |= IFM_IEEE80211_ADHOC; 896 break; 897 898 case IEEE80211_M_MONITOR: 899 imr->ifm_active |= IFM_IEEE80211_MONITOR; 900 break; 901 902 case IEEE80211_M_AHDEMO: 903 case IEEE80211_M_HOSTAP: 904 /* should not get there */ 905 break; 906 } 907 } 908 909 static int 910 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 911 { 912 struct iwi_softc *sc = ic->ic_ifp->if_softc; 913 914 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 915 ieee80211_state_name[ic->ic_state], 916 ieee80211_state_name[nstate], sc->flags)); 917 918 switch (nstate) { 919 case IEEE80211_S_SCAN: 920 if (sc->flags & IWI_FLAG_SCANNING) 921 break; 922 923 ieee80211_node_table_reset(&ic->ic_scan); 924 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 925 sc->flags |= IWI_FLAG_SCANNING; 926 /* blink the led while scanning */ 927 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 928 iwi_scan(sc); 929 break; 930 931 case IEEE80211_S_AUTH: 932 iwi_auth_and_assoc(sc); 933 break; 934 935 case IEEE80211_S_RUN: 936 if (ic->ic_opmode == IEEE80211_M_IBSS) 937 ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 938 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 939 iwi_set_chan(sc, ic->ic_ibss_chan); 940 941 return (*sc->sc_newstate)(ic, nstate, 942 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 943 944 case IEEE80211_S_ASSOC: 945 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 946 break; 947 948 case IEEE80211_S_INIT: 949 sc->flags &= ~IWI_FLAG_SCANNING; 950 return (*sc->sc_newstate)(ic, nstate, arg); 951 } 952 953 ic->ic_state = nstate; 954 return 0; 955 } 956 957 /* 958 * WME parameters coming from IEEE 802.11e specification. These values are 959 * already declared in ieee80211_proto.c, but they are static so they can't 960 * be reused here. 961 */ 962 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 963 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 964 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 965 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 966 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 967 }; 968 969 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 970 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 971 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 972 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 973 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 974 }; 975 976 static int 977 iwi_wme_update(struct ieee80211com *ic) 978 { 979 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 980 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 981 struct iwi_softc *sc = ic->ic_ifp->if_softc; 982 struct iwi_wme_params wme[3]; 983 const struct wmeParams *wmep; 984 int ac; 985 986 /* 987 * We shall not override firmware default WME values if WME is not 988 * actually enabled. 989 */ 990 if (!(ic->ic_flags & IEEE80211_F_WME)) 991 return 0; 992 993 for (ac = 0; ac < WME_NUM_AC; ac++) { 994 /* set WME values for current operating mode */ 995 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 996 wme[0].aifsn[ac] = wmep->wmep_aifsn; 997 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 998 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 999 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1000 wme[0].acm[ac] = wmep->wmep_acm; 1001 1002 /* set WME values for CCK modulation */ 1003 wmep = &iwi_wme_cck_params[ac]; 1004 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1005 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1006 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1007 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1008 wme[1].acm[ac] = wmep->wmep_acm; 1009 1010 /* set WME values for OFDM modulation */ 1011 wmep = &iwi_wme_ofdm_params[ac]; 1012 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1013 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1014 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1015 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1016 wme[2].acm[ac] = wmep->wmep_acm; 1017 } 1018 1019 DPRINTF(("Setting WME parameters\n")); 1020 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1021 #undef IWI_USEC 1022 #undef IWI_EXP2 1023 } 1024 1025 /* 1026 * Read 16 bits at address 'addr' from the serial EEPROM. 1027 */ 1028 static uint16_t 1029 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1030 { 1031 uint32_t tmp; 1032 uint16_t val; 1033 int n; 1034 1035 /* Clock C once before the first command */ 1036 IWI_EEPROM_CTL(sc, 0); 1037 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1038 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1039 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1040 1041 /* Write start bit (1) */ 1042 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1043 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1044 1045 /* Write READ opcode (10) */ 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1048 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1049 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1050 1051 /* Write address A7-A0 */ 1052 for (n = 7; n >= 0; n--) { 1053 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1054 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1055 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1056 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1057 } 1058 1059 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1060 1061 /* Read data Q15-Q0 */ 1062 val = 0; 1063 for (n = 15; n >= 0; n--) { 1064 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1065 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1066 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1067 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1068 } 1069 1070 IWI_EEPROM_CTL(sc, 0); 1071 1072 /* Clear Chip Select and clock C */ 1073 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1074 IWI_EEPROM_CTL(sc, 0); 1075 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1076 1077 return val; 1078 } 1079 1080 /* 1081 * XXX: Hack to set the current channel to the value advertised in beacons or 1082 * probe responses. Only used during AP detection. 1083 */ 1084 static void 1085 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1086 { 1087 struct ieee80211_frame *wh; 1088 uint8_t subtype; 1089 uint8_t *frm, *efrm; 1090 1091 wh = mtod(m, struct ieee80211_frame *); 1092 1093 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1094 return; 1095 1096 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1097 1098 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1099 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1100 return; 1101 1102 frm = (uint8_t *)(wh + 1); 1103 efrm = mtod(m, uint8_t *) + m->m_len; 1104 1105 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1106 while (frm < efrm) { 1107 if (*frm == IEEE80211_ELEMID_DSPARMS) 1108 #if IEEE80211_CHAN_MAX < 255 1109 if (frm[2] <= IEEE80211_CHAN_MAX) 1110 #endif 1111 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1112 1113 frm += frm[1] + 2; 1114 } 1115 } 1116 1117 static struct mbuf * 1118 iwi_alloc_rx_buf(struct iwi_softc *sc) 1119 { 1120 struct mbuf *m; 1121 1122 MGETHDR(m, M_DONTWAIT, MT_DATA); 1123 if (m == NULL) { 1124 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1125 return NULL; 1126 } 1127 1128 MCLGET(m, M_DONTWAIT); 1129 if (!(m->m_flags & M_EXT)) { 1130 aprint_error_dev(sc->sc_dev, 1131 "could not allocate rx mbuf cluster\n"); 1132 m_freem(m); 1133 return NULL; 1134 } 1135 1136 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1137 return m; 1138 } 1139 1140 static void 1141 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1142 struct iwi_frame *frame) 1143 { 1144 struct ieee80211com *ic = &sc->sc_ic; 1145 struct ifnet *ifp = ic->ic_ifp; 1146 struct mbuf *m, *m_new; 1147 struct ieee80211_frame *wh; 1148 struct ieee80211_node *ni; 1149 int error; 1150 1151 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1152 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1153 1154 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1155 le16toh(frame->len) > MCLBYTES) { 1156 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1157 ifp->if_ierrors++; 1158 return; 1159 } 1160 1161 /* 1162 * Try to allocate a new mbuf for this ring element and 1163 * load it before processing the current mbuf. If the ring 1164 * element cannot be reloaded, drop the received packet 1165 * and reuse the old mbuf. In the unlikely case that 1166 * the old mbuf can't be reloaded either, explicitly panic. 1167 * 1168 * XXX Reorganize buffer by moving elements from the logical 1169 * end of the ring to the front instead of dropping. 1170 */ 1171 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1172 ifp->if_ierrors++; 1173 return; 1174 } 1175 1176 bus_dmamap_unload(sc->sc_dmat, data->map); 1177 1178 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1179 BUS_DMA_READ | BUS_DMA_NOWAIT); 1180 if (error != 0) { 1181 aprint_error_dev(sc->sc_dev, 1182 "could not load rx buf DMA map\n"); 1183 m_freem(m_new); 1184 ifp->if_ierrors++; 1185 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1186 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1187 if (error) 1188 panic("%s: unable to remap rx buf", 1189 device_xname(sc->sc_dev)); 1190 return; 1191 } 1192 1193 /* 1194 * New mbuf successfully loaded, update RX ring and continue 1195 * processing. 1196 */ 1197 m = data->m; 1198 data->m = m_new; 1199 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1200 1201 /* Finalize mbuf */ 1202 m->m_pkthdr.rcvif = ifp; 1203 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1204 sizeof (struct iwi_frame) + le16toh(frame->len); 1205 1206 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1207 1208 if (ic->ic_state == IEEE80211_S_SCAN) 1209 iwi_fix_channel(ic, m); 1210 1211 if (sc->sc_drvbpf != NULL) { 1212 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1213 1214 tap->wr_flags = 0; 1215 tap->wr_rate = iwi_cvtrate(frame->rate); 1216 tap->wr_chan_freq = 1217 htole16(ic->ic_channels[frame->chan].ic_freq); 1218 tap->wr_chan_flags = 1219 htole16(ic->ic_channels[frame->chan].ic_flags); 1220 tap->wr_antsignal = frame->signal; 1221 tap->wr_antenna = frame->antenna; 1222 1223 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1224 } 1225 wh = mtod(m, struct ieee80211_frame *); 1226 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1227 1228 /* Send the frame to the upper layer */ 1229 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1230 1231 /* node is no longer needed */ 1232 ieee80211_free_node(ni); 1233 } 1234 1235 static void 1236 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1237 { 1238 struct ieee80211com *ic = &sc->sc_ic; 1239 struct iwi_notif_scan_channel *chan; 1240 struct iwi_notif_scan_complete *scan; 1241 struct iwi_notif_authentication *auth; 1242 struct iwi_notif_association *assoc; 1243 struct iwi_notif_beacon_state *beacon; 1244 1245 switch (notif->type) { 1246 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1247 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1248 1249 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1250 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1251 break; 1252 1253 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1254 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1255 1256 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1257 scan->status)); 1258 1259 /* monitor mode uses scan to set the channel ... */ 1260 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1261 sc->flags &= ~IWI_FLAG_SCANNING; 1262 ieee80211_end_scan(ic); 1263 } else 1264 iwi_set_chan(sc, ic->ic_ibss_chan); 1265 break; 1266 1267 case IWI_NOTIF_TYPE_AUTHENTICATION: 1268 auth = (struct iwi_notif_authentication *)(notif + 1); 1269 1270 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1271 1272 switch (auth->state) { 1273 case IWI_AUTH_SUCCESS: 1274 ieee80211_node_authorize(ic->ic_bss); 1275 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1276 break; 1277 1278 case IWI_AUTH_FAIL: 1279 break; 1280 1281 default: 1282 aprint_error_dev(sc->sc_dev, 1283 "unknown authentication state %u\n", auth->state); 1284 } 1285 break; 1286 1287 case IWI_NOTIF_TYPE_ASSOCIATION: 1288 assoc = (struct iwi_notif_association *)(notif + 1); 1289 1290 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1291 assoc->status)); 1292 1293 switch (assoc->state) { 1294 case IWI_AUTH_SUCCESS: 1295 /* re-association, do nothing */ 1296 break; 1297 1298 case IWI_ASSOC_SUCCESS: 1299 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1300 break; 1301 1302 case IWI_ASSOC_FAIL: 1303 ieee80211_begin_scan(ic, 1); 1304 break; 1305 1306 default: 1307 aprint_error_dev(sc->sc_dev, 1308 "unknown association state %u\n", assoc->state); 1309 } 1310 break; 1311 1312 case IWI_NOTIF_TYPE_BEACON: 1313 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1314 1315 if (beacon->state == IWI_BEACON_MISS) { 1316 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1317 device_xname(sc->sc_dev), le32toh(beacon->number))); 1318 } 1319 break; 1320 1321 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1322 case IWI_NOTIF_TYPE_LINK_QUALITY: 1323 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1324 case IWI_NOTIF_TYPE_CALIBRATION: 1325 case IWI_NOTIF_TYPE_NOISE: 1326 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1327 break; 1328 1329 default: 1330 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1331 device_xname(sc->sc_dev), notif->type, notif->flags, 1332 le16toh(notif->len))); 1333 } 1334 } 1335 1336 static void 1337 iwi_cmd_intr(struct iwi_softc *sc) 1338 { 1339 uint32_t hw; 1340 1341 hw = CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1342 1343 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1344 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1345 BUS_DMASYNC_POSTWRITE); 1346 1347 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1348 1349 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1350 1351 if (--sc->cmdq.queued > 0) { 1352 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1353 } 1354 } 1355 1356 static void 1357 iwi_rx_intr(struct iwi_softc *sc) 1358 { 1359 struct iwi_rx_data *data; 1360 struct iwi_hdr *hdr; 1361 uint32_t hw; 1362 1363 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1364 1365 for (; sc->rxq.cur != hw;) { 1366 data = &sc->rxq.data[sc->rxq.cur]; 1367 1368 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1369 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1370 1371 hdr = mtod(data->m, struct iwi_hdr *); 1372 1373 switch (hdr->type) { 1374 case IWI_HDR_TYPE_FRAME: 1375 iwi_frame_intr(sc, data, sc->rxq.cur, 1376 (struct iwi_frame *)(hdr + 1)); 1377 break; 1378 1379 case IWI_HDR_TYPE_NOTIF: 1380 iwi_notification_intr(sc, 1381 (struct iwi_notif *)(hdr + 1)); 1382 break; 1383 1384 default: 1385 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1386 hdr->type); 1387 } 1388 1389 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1390 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1391 1392 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1393 1394 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1395 } 1396 1397 /* Tell the firmware what we have processed */ 1398 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1399 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1400 } 1401 1402 static void 1403 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1404 { 1405 struct ifnet *ifp = &sc->sc_if; 1406 struct iwi_tx_data *data; 1407 uint32_t hw; 1408 1409 hw = CSR_READ_4(sc, txq->csr_ridx); 1410 1411 for (; txq->next != hw;) { 1412 data = &txq->data[txq->next]; 1413 1414 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1415 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1416 bus_dmamap_unload(sc->sc_dmat, data->map); 1417 m_freem(data->m); 1418 data->m = NULL; 1419 ieee80211_free_node(data->ni); 1420 data->ni = NULL; 1421 1422 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1423 1424 ifp->if_opackets++; 1425 1426 txq->queued--; 1427 txq->next = (txq->next + 1) % txq->count; 1428 } 1429 1430 sc->sc_tx_timer = 0; 1431 ifp->if_flags &= ~IFF_OACTIVE; 1432 1433 /* Call start() since some buffer descriptors have been released */ 1434 (*ifp->if_start)(ifp); 1435 } 1436 1437 static int 1438 iwi_intr(void *arg) 1439 { 1440 struct iwi_softc *sc = arg; 1441 uint32_t r; 1442 1443 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1444 return 0; 1445 1446 /* Acknowledge interrupts */ 1447 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1448 1449 if (r & IWI_INTR_FATAL_ERROR) { 1450 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1451 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1452 iwi_stop(&sc->sc_if, 1); 1453 return (1); 1454 } 1455 1456 if (r & IWI_INTR_FW_INITED) { 1457 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1458 wakeup(sc); 1459 } 1460 1461 if (r & IWI_INTR_RADIO_OFF) { 1462 DPRINTF(("radio transmitter off\n")); 1463 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1464 iwi_stop(&sc->sc_if, 1); 1465 return (1); 1466 } 1467 1468 if (r & IWI_INTR_CMD_DONE) 1469 iwi_cmd_intr(sc); 1470 1471 if (r & IWI_INTR_TX1_DONE) 1472 iwi_tx_intr(sc, &sc->txq[0]); 1473 1474 if (r & IWI_INTR_TX2_DONE) 1475 iwi_tx_intr(sc, &sc->txq[1]); 1476 1477 if (r & IWI_INTR_TX3_DONE) 1478 iwi_tx_intr(sc, &sc->txq[2]); 1479 1480 if (r & IWI_INTR_TX4_DONE) 1481 iwi_tx_intr(sc, &sc->txq[3]); 1482 1483 if (r & IWI_INTR_RX_DONE) 1484 iwi_rx_intr(sc); 1485 1486 if (r & IWI_INTR_PARITY_ERROR) 1487 aprint_error_dev(sc->sc_dev, "parity error\n"); 1488 1489 return 1; 1490 } 1491 1492 static int 1493 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1494 int async) 1495 { 1496 struct iwi_cmd_desc *desc; 1497 1498 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1499 1500 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1501 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1502 desc->type = type; 1503 desc->len = len; 1504 memcpy(desc->data, data, len); 1505 1506 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1507 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1508 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1509 1510 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1511 sc->cmdq.cur, type, len, async)); 1512 1513 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1514 1515 if (++sc->cmdq.queued == 1) 1516 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1517 1518 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1519 } 1520 1521 static void 1522 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1523 { 1524 struct iwi_ibssnode node; 1525 1526 /* write node information into NIC memory */ 1527 memset(&node, 0, sizeof node); 1528 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1529 1530 CSR_WRITE_REGION_1(sc, 1531 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1532 (uint8_t *)&node, sizeof node); 1533 } 1534 1535 static int 1536 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1537 int ac) 1538 { 1539 struct iwi_softc *sc = ifp->if_softc; 1540 struct ieee80211com *ic = &sc->sc_ic; 1541 struct iwi_node *in = (struct iwi_node *)ni; 1542 struct ieee80211_frame *wh; 1543 struct ieee80211_key *k; 1544 const struct chanAccParams *cap; 1545 struct iwi_tx_ring *txq = &sc->txq[ac]; 1546 struct iwi_tx_data *data; 1547 struct iwi_tx_desc *desc; 1548 struct mbuf *mnew; 1549 int error, hdrlen, i, noack = 0; 1550 1551 wh = mtod(m0, struct ieee80211_frame *); 1552 1553 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1554 hdrlen = sizeof (struct ieee80211_qosframe); 1555 cap = &ic->ic_wme.wme_chanParams; 1556 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1557 } else 1558 hdrlen = sizeof (struct ieee80211_frame); 1559 1560 /* 1561 * This is only used in IBSS mode where the firmware expect an index 1562 * in a h/w table instead of a destination address. 1563 */ 1564 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1565 in->in_station = iwi_alloc_unr(sc); 1566 1567 if (in->in_station == -1) { /* h/w table is full */ 1568 m_freem(m0); 1569 ieee80211_free_node(ni); 1570 ifp->if_oerrors++; 1571 return 0; 1572 } 1573 iwi_write_ibssnode(sc, in); 1574 } 1575 1576 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1577 k = ieee80211_crypto_encap(ic, ni, m0); 1578 if (k == NULL) { 1579 m_freem(m0); 1580 return ENOBUFS; 1581 } 1582 1583 /* packet header may have moved, reset our local pointer */ 1584 wh = mtod(m0, struct ieee80211_frame *); 1585 } 1586 1587 if (sc->sc_drvbpf != NULL) { 1588 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1589 1590 tap->wt_flags = 0; 1591 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1592 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1593 1594 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1595 } 1596 1597 data = &txq->data[txq->cur]; 1598 desc = &txq->desc[txq->cur]; 1599 1600 /* save and trim IEEE802.11 header */ 1601 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1602 m_adj(m0, hdrlen); 1603 1604 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1605 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1606 if (error != 0 && error != EFBIG) { 1607 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1608 error); 1609 m_freem(m0); 1610 return error; 1611 } 1612 if (error != 0) { 1613 /* too many fragments, linearize */ 1614 1615 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1616 if (mnew == NULL) { 1617 m_freem(m0); 1618 return ENOMEM; 1619 } 1620 1621 M_COPY_PKTHDR(mnew, m0); 1622 1623 /* If the data won't fit in the header, get a cluster */ 1624 if (m0->m_pkthdr.len > MHLEN) { 1625 MCLGET(mnew, M_DONTWAIT); 1626 if (!(mnew->m_flags & M_EXT)) { 1627 m_freem(m0); 1628 m_freem(mnew); 1629 return ENOMEM; 1630 } 1631 } 1632 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1633 m_freem(m0); 1634 mnew->m_len = mnew->m_pkthdr.len; 1635 m0 = mnew; 1636 1637 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1638 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1639 if (error != 0) { 1640 aprint_error_dev(sc->sc_dev, 1641 "could not map mbuf (error %d)\n", error); 1642 m_freem(m0); 1643 return error; 1644 } 1645 } 1646 1647 data->m = m0; 1648 data->ni = ni; 1649 1650 desc->hdr.type = IWI_HDR_TYPE_DATA; 1651 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1652 desc->station = 1653 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1654 desc->cmd = IWI_DATA_CMD_TX; 1655 desc->len = htole16(m0->m_pkthdr.len); 1656 desc->flags = 0; 1657 desc->xflags = 0; 1658 1659 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1660 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1661 1662 #if 0 1663 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1664 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1665 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1666 } else 1667 #endif 1668 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1669 1670 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1671 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1672 1673 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1674 desc->xflags |= IWI_DATA_XFLAG_QOS; 1675 1676 if (ic->ic_curmode == IEEE80211_MODE_11B) 1677 desc->xflags |= IWI_DATA_XFLAG_CCK; 1678 1679 desc->nseg = htole32(data->map->dm_nsegs); 1680 for (i = 0; i < data->map->dm_nsegs; i++) { 1681 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1682 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1683 } 1684 1685 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1686 txq->cur * IWI_TX_DESC_SIZE, 1687 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1688 1689 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1690 BUS_DMASYNC_PREWRITE); 1691 1692 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1693 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1694 1695 /* Inform firmware about this new packet */ 1696 txq->queued++; 1697 txq->cur = (txq->cur + 1) % txq->count; 1698 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1699 1700 return 0; 1701 } 1702 1703 static void 1704 iwi_start(struct ifnet *ifp) 1705 { 1706 struct iwi_softc *sc = ifp->if_softc; 1707 struct ieee80211com *ic = &sc->sc_ic; 1708 struct mbuf *m0; 1709 struct ether_header *eh; 1710 struct ieee80211_node *ni; 1711 int ac; 1712 1713 if (ic->ic_state != IEEE80211_S_RUN) 1714 return; 1715 1716 for (;;) { 1717 IF_DEQUEUE(&ifp->if_snd, m0); 1718 if (m0 == NULL) 1719 break; 1720 1721 if (m0->m_len < sizeof (struct ether_header) && 1722 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1723 ifp->if_oerrors++; 1724 continue; 1725 } 1726 1727 eh = mtod(m0, struct ether_header *); 1728 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1729 if (ni == NULL) { 1730 m_freem(m0); 1731 ifp->if_oerrors++; 1732 continue; 1733 } 1734 1735 /* classify mbuf so we can find which tx ring to use */ 1736 if (ieee80211_classify(ic, m0, ni) != 0) { 1737 m_freem(m0); 1738 ieee80211_free_node(ni); 1739 ifp->if_oerrors++; 1740 continue; 1741 } 1742 1743 /* no QoS encapsulation for EAPOL frames */ 1744 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1745 M_WME_GETAC(m0) : WME_AC_BE; 1746 1747 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1748 /* there is no place left in this ring */ 1749 IF_PREPEND(&ifp->if_snd, m0); 1750 ifp->if_flags |= IFF_OACTIVE; 1751 break; 1752 } 1753 1754 bpf_mtap(ifp, m0); 1755 1756 m0 = ieee80211_encap(ic, m0, ni); 1757 if (m0 == NULL) { 1758 ieee80211_free_node(ni); 1759 ifp->if_oerrors++; 1760 continue; 1761 } 1762 1763 bpf_mtap3(ic->ic_rawbpf, m0); 1764 1765 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1766 ieee80211_free_node(ni); 1767 ifp->if_oerrors++; 1768 break; 1769 } 1770 1771 /* start watchdog timer */ 1772 sc->sc_tx_timer = 5; 1773 ifp->if_timer = 1; 1774 } 1775 } 1776 1777 static void 1778 iwi_watchdog(struct ifnet *ifp) 1779 { 1780 struct iwi_softc *sc = ifp->if_softc; 1781 1782 ifp->if_timer = 0; 1783 1784 if (sc->sc_tx_timer > 0) { 1785 if (--sc->sc_tx_timer == 0) { 1786 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1787 ifp->if_oerrors++; 1788 ifp->if_flags &= ~IFF_UP; 1789 iwi_stop(ifp, 1); 1790 return; 1791 } 1792 ifp->if_timer = 1; 1793 } 1794 1795 ieee80211_watchdog(&sc->sc_ic); 1796 } 1797 1798 static int 1799 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1800 { 1801 uint32_t size, buf[128]; 1802 1803 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1804 memset(buf, 0, sizeof buf); 1805 return copyout(buf, tbl, sizeof buf); 1806 } 1807 1808 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1809 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1810 1811 return copyout(buf, tbl, sizeof buf); 1812 } 1813 1814 static int 1815 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1816 { 1817 #define IS_RUNNING(ifp) \ 1818 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1819 1820 struct iwi_softc *sc = ifp->if_softc; 1821 struct ieee80211com *ic = &sc->sc_ic; 1822 struct ifreq *ifr = (struct ifreq *)data; 1823 int s, error = 0; 1824 int val; 1825 1826 s = splnet(); 1827 1828 switch (cmd) { 1829 case SIOCSIFFLAGS: 1830 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1831 break; 1832 if (ifp->if_flags & IFF_UP) { 1833 if (!(ifp->if_flags & IFF_RUNNING)) 1834 iwi_init(ifp); 1835 } else { 1836 if (ifp->if_flags & IFF_RUNNING) 1837 iwi_stop(ifp, 1); 1838 } 1839 break; 1840 1841 case SIOCADDMULTI: 1842 case SIOCDELMULTI: 1843 /* XXX no h/w multicast filter? --dyoung */ 1844 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1845 /* setup multicast filter, etc */ 1846 error = 0; 1847 } 1848 break; 1849 1850 case SIOCGTABLE0: 1851 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1852 break; 1853 1854 case SIOCGRADIO: 1855 val = !iwi_getrfkill(sc); 1856 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1857 break; 1858 1859 case SIOCSIFMEDIA: 1860 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1861 sc->sc_fwname = "ipw2200-ibss.fw"; 1862 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1863 sc->sc_fwname = "ipw2200-sniffer.fw"; 1864 } else { 1865 sc->sc_fwname = "ipw2200-bss.fw"; 1866 } 1867 error = iwi_cache_firmware(sc); 1868 if (error) 1869 break; 1870 /* FALLTRHOUGH */ 1871 1872 default: 1873 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1874 1875 if (error == ENETRESET) { 1876 if (IS_RUNNING(ifp) && 1877 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1878 iwi_init(ifp); 1879 error = 0; 1880 } 1881 } 1882 1883 splx(s); 1884 return error; 1885 #undef IS_RUNNING 1886 } 1887 1888 static void 1889 iwi_stop_master(struct iwi_softc *sc) 1890 { 1891 int ntries; 1892 1893 /* Disable interrupts */ 1894 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1895 1896 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1897 for (ntries = 0; ntries < 5; ntries++) { 1898 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1899 break; 1900 DELAY(10); 1901 } 1902 if (ntries == 5) 1903 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1904 1905 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1906 IWI_RST_PRINCETON_RESET); 1907 1908 sc->flags &= ~IWI_FLAG_FW_INITED; 1909 } 1910 1911 static int 1912 iwi_reset(struct iwi_softc *sc) 1913 { 1914 int i, ntries; 1915 1916 iwi_stop_master(sc); 1917 1918 /* Move adapter to D0 state */ 1919 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1920 IWI_CTL_INIT); 1921 1922 /* Initialize Phase-Locked Level (PLL) */ 1923 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1924 1925 /* Wait for clock stabilization */ 1926 for (ntries = 0; ntries < 1000; ntries++) { 1927 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1928 break; 1929 DELAY(200); 1930 } 1931 if (ntries == 1000) { 1932 aprint_error_dev(sc->sc_dev, 1933 "timeout waiting for clock stabilization\n"); 1934 return ETIMEDOUT; 1935 } 1936 1937 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1938 IWI_RST_SW_RESET); 1939 1940 DELAY(10); 1941 1942 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1943 IWI_CTL_INIT); 1944 1945 /* Clear NIC memory */ 1946 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1947 for (i = 0; i < 0xc000; i++) 1948 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1949 1950 return 0; 1951 } 1952 1953 static int 1954 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1955 { 1956 uint16_t *w; 1957 int ntries, i; 1958 1959 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1960 IWI_RST_STOP_MASTER); 1961 for (ntries = 0; ntries < 5; ntries++) { 1962 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1963 break; 1964 DELAY(10); 1965 } 1966 if (ntries == 5) { 1967 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1968 return ETIMEDOUT; 1969 } 1970 1971 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1972 DELAY(5000); 1973 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1974 ~IWI_RST_PRINCETON_RESET); 1975 DELAY(5000); 1976 MEM_WRITE_4(sc, 0x3000e0, 0); 1977 DELAY(1000); 1978 MEM_WRITE_4(sc, 0x300004, 1); 1979 DELAY(1000); 1980 MEM_WRITE_4(sc, 0x300004, 0); 1981 DELAY(1000); 1982 MEM_WRITE_1(sc, 0x200000, 0x00); 1983 MEM_WRITE_1(sc, 0x200000, 0x40); 1984 DELAY(1000); 1985 1986 /* Adapter is buggy, we must set the address for each word */ 1987 for (w = uc; size > 0; w++, size -= 2) 1988 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1989 1990 MEM_WRITE_1(sc, 0x200000, 0x00); 1991 MEM_WRITE_1(sc, 0x200000, 0x80); 1992 1993 /* Wait until we get a response in the uc queue */ 1994 for (ntries = 0; ntries < 100; ntries++) { 1995 if (MEM_READ_1(sc, 0x200000) & 1) 1996 break; 1997 DELAY(100); 1998 } 1999 if (ntries == 100) { 2000 aprint_error_dev(sc->sc_dev, 2001 "timeout waiting for ucode to initialize\n"); 2002 return ETIMEDOUT; 2003 } 2004 2005 /* Empty the uc queue or the firmware will not initialize properly */ 2006 for (i = 0; i < 7; i++) 2007 MEM_READ_4(sc, 0x200004); 2008 2009 MEM_WRITE_1(sc, 0x200000, 0x00); 2010 2011 return 0; 2012 } 2013 2014 /* macro to handle unaligned little endian data in firmware image */ 2015 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2016 static int 2017 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2018 { 2019 bus_dmamap_t map; 2020 u_char *p, *end; 2021 uint32_t sentinel, ctl, sum; 2022 uint32_t cs, sl, cd, cl; 2023 int ntries, nsegs, error; 2024 int sn; 2025 2026 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2027 2028 /* Create a DMA map for the firmware image */ 2029 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2030 BUS_DMA_NOWAIT, &map); 2031 if (error != 0) { 2032 aprint_error_dev(sc->sc_dev, 2033 "could not create firmware DMA map\n"); 2034 map = NULL; 2035 goto fail1; 2036 } 2037 2038 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2039 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2040 if (error != 0) { 2041 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2042 error); 2043 goto fail2; 2044 } 2045 2046 /* Make sure the adapter will get up-to-date values */ 2047 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2048 2049 /* Tell the adapter where the command blocks are stored */ 2050 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2051 2052 /* 2053 * Store command blocks into adapter's internal memory using register 2054 * indirections. The adapter will read the firmware image through DMA 2055 * using information stored in command blocks. 2056 */ 2057 p = fw; 2058 end = p + size; 2059 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2060 2061 sn = 0; 2062 sl = cl = 0; 2063 cs = cd = 0; 2064 while (p < end) { 2065 if (sl == 0) { 2066 cs = map->dm_segs[sn].ds_addr; 2067 sl = map->dm_segs[sn].ds_len; 2068 sn++; 2069 } 2070 if (cl == 0) { 2071 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2072 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2073 } 2074 while (sl > 0 && cl > 0) { 2075 int len = min(cl, sl); 2076 2077 sl -= len; 2078 cl -= len; 2079 p += len; 2080 2081 while (len > 0) { 2082 int mlen = min(len, IWI_CB_MAXDATALEN); 2083 2084 ctl = IWI_CB_DEFAULT_CTL | mlen; 2085 sum = ctl ^ cs ^ cd; 2086 2087 /* Write a command block */ 2088 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2089 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2090 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2091 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2092 2093 cs += mlen; 2094 cd += mlen; 2095 len -= mlen; 2096 } 2097 } 2098 } 2099 2100 /* Write a fictive final command block (sentinel) */ 2101 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2102 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2103 2104 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2105 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2106 2107 /* Tell the adapter to start processing command blocks */ 2108 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2109 2110 /* Wait until the adapter has processed all command blocks */ 2111 for (ntries = 0; ntries < 400; ntries++) { 2112 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2113 break; 2114 DELAY(100); 2115 } 2116 if (ntries == 400) { 2117 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2118 error = ETIMEDOUT; 2119 goto fail3; 2120 } 2121 2122 /* We're done with command blocks processing */ 2123 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2124 2125 /* Allow interrupts so we know when the firmware is inited */ 2126 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2127 2128 /* Tell the adapter to initialize the firmware */ 2129 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2130 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2131 IWI_CTL_ALLOW_STANDBY); 2132 2133 /* Wait at most one second for firmware initialization to complete */ 2134 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2135 aprint_error_dev(sc->sc_dev, 2136 "timeout waiting for firmware initialization to complete\n"); 2137 goto fail3; 2138 } 2139 2140 fail3: 2141 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2142 bus_dmamap_unload(sc->sc_dmat, map); 2143 fail2: 2144 if (map != NULL) 2145 bus_dmamap_destroy(sc->sc_dmat, map); 2146 2147 fail1: 2148 return error; 2149 } 2150 2151 /* 2152 * Store firmware into kernel memory so we can download it when we need to, 2153 * e.g when the adapter wakes up from suspend mode. 2154 */ 2155 static int 2156 iwi_cache_firmware(struct iwi_softc *sc) 2157 { 2158 struct iwi_firmware *kfw = &sc->fw; 2159 firmware_handle_t fwh; 2160 const struct iwi_firmware_hdr *hdr; 2161 off_t size; 2162 char *fw; 2163 int error; 2164 2165 if (iwi_accept_eula == 0) { 2166 aprint_error_dev(sc->sc_dev, 2167 "EULA not accepted; please see the iwi(4) man page.\n"); 2168 return EPERM; 2169 } 2170 2171 iwi_free_firmware(sc); 2172 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2173 if (error != 0) { 2174 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2175 goto fail1; 2176 } 2177 2178 size = firmware_get_size(fwh); 2179 if (size < sizeof(struct iwi_firmware_hdr)) { 2180 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2181 sc->sc_fwname); 2182 error = EIO; 2183 goto fail1; 2184 } 2185 2186 sc->sc_blob = firmware_malloc(size); 2187 if (sc->sc_blob == NULL) { 2188 error = ENOMEM; 2189 firmware_close(fwh); 2190 goto fail1; 2191 } 2192 2193 error = firmware_read(fwh, 0, sc->sc_blob, size); 2194 firmware_close(fwh); 2195 if (error != 0) 2196 goto fail2; 2197 2198 2199 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2200 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2201 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2202 sc->sc_fwname); 2203 error = EIO; 2204 goto fail2; 2205 } 2206 2207 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2208 DPRINTF(("firmware version = %d\n", le32toh(hdr->version))); 2209 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2210 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2211 aprint_error_dev(sc->sc_dev, 2212 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2213 IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2214 IWI_FW_GET_MINOR(le32toh(hdr->version)), 2215 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2216 error = EIO; 2217 goto fail2; 2218 } 2219 2220 kfw->boot_size = hdr->bsize; 2221 kfw->ucode_size = hdr->usize; 2222 kfw->main_size = hdr->fsize; 2223 2224 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2225 kfw->boot = fw; 2226 fw += kfw->boot_size; 2227 kfw->ucode = fw; 2228 fw += kfw->ucode_size; 2229 kfw->main = fw; 2230 2231 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2232 kfw->boot, kfw->ucode, kfw->main)); 2233 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2234 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2235 2236 sc->flags |= IWI_FLAG_FW_CACHED; 2237 2238 return 0; 2239 2240 2241 fail2: firmware_free(sc->sc_blob, 0); 2242 fail1: 2243 return error; 2244 } 2245 2246 static void 2247 iwi_free_firmware(struct iwi_softc *sc) 2248 { 2249 2250 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2251 return; 2252 2253 firmware_free(sc->sc_blob, 0); 2254 2255 sc->flags &= ~IWI_FLAG_FW_CACHED; 2256 } 2257 2258 static int 2259 iwi_config(struct iwi_softc *sc) 2260 { 2261 struct ieee80211com *ic = &sc->sc_ic; 2262 struct ifnet *ifp = &sc->sc_if; 2263 struct iwi_configuration config; 2264 struct iwi_rateset rs; 2265 struct iwi_txpower power; 2266 struct ieee80211_key *wk; 2267 struct iwi_wep_key wepkey; 2268 uint32_t data; 2269 int error, nchan, i; 2270 2271 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2272 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2273 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2274 IEEE80211_ADDR_LEN, 0); 2275 if (error != 0) 2276 return error; 2277 2278 memset(&config, 0, sizeof config); 2279 config.bluetooth_coexistence = sc->bluetooth; 2280 config.antenna = sc->antenna; 2281 config.silence_threshold = 0x1e; 2282 config.multicast_enabled = 1; 2283 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2284 config.disable_unicast_decryption = 1; 2285 config.disable_multicast_decryption = 1; 2286 DPRINTF(("Configuring adapter\n")); 2287 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2288 0); 2289 if (error != 0) 2290 return error; 2291 2292 data = htole32(IWI_POWER_MODE_CAM); 2293 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2294 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2295 if (error != 0) 2296 return error; 2297 2298 data = htole32(ic->ic_rtsthreshold); 2299 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2300 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2301 if (error != 0) 2302 return error; 2303 2304 data = htole32(ic->ic_fragthreshold); 2305 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2306 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2307 if (error != 0) 2308 return error; 2309 2310 /* 2311 * Set default Tx power for 802.11b/g and 802.11a channels. 2312 */ 2313 nchan = 0; 2314 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2315 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2316 continue; 2317 power.chan[nchan].chan = i; 2318 power.chan[nchan].power = IWI_TXPOWER_MAX; 2319 nchan++; 2320 } 2321 power.nchan = nchan; 2322 2323 power.mode = IWI_MODE_11G; 2324 DPRINTF(("Setting .11g channels tx power\n")); 2325 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2326 if (error != 0) 2327 return error; 2328 2329 power.mode = IWI_MODE_11B; 2330 DPRINTF(("Setting .11b channels tx power\n")); 2331 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2332 if (error != 0) 2333 return error; 2334 2335 nchan = 0; 2336 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2337 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2338 continue; 2339 power.chan[nchan].chan = i; 2340 power.chan[nchan].power = IWI_TXPOWER_MAX; 2341 nchan++; 2342 } 2343 power.nchan = nchan; 2344 2345 if (nchan > 0) { /* 2915ABG only */ 2346 power.mode = IWI_MODE_11A; 2347 DPRINTF(("Setting .11a channels tx power\n")); 2348 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2349 0); 2350 if (error != 0) 2351 return error; 2352 } 2353 2354 rs.mode = IWI_MODE_11G; 2355 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2356 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2357 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2358 rs.nrates); 2359 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2360 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2361 if (error != 0) 2362 return error; 2363 2364 rs.mode = IWI_MODE_11A; 2365 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2366 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2367 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2368 rs.nrates); 2369 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2370 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2371 if (error != 0) 2372 return error; 2373 2374 /* if we have a desired ESSID, set it now */ 2375 if (ic->ic_des_esslen != 0) { 2376 #ifdef IWI_DEBUG 2377 if (iwi_debug > 0) { 2378 printf("Setting desired ESSID to "); 2379 ieee80211_print_essid(ic->ic_des_essid, 2380 ic->ic_des_esslen); 2381 printf("\n"); 2382 } 2383 #endif 2384 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2385 ic->ic_des_esslen, 0); 2386 if (error != 0) 2387 return error; 2388 } 2389 2390 cprng_fast(&data, sizeof(data)); 2391 data = htole32(data); 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