1 /* $NetBSD: if_iwi.c,v 1.87 2011/05/23 15:37:36 drochner 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 1.87 2011/05/23 15:37:36 drochner 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 <dev/pci/if_iwireg.h> 69 #include <dev/pci/if_iwivar.h> 70 71 #ifdef IWI_DEBUG 72 #define DPRINTF(x) if (iwi_debug > 0) printf x 73 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 74 int iwi_debug = 4; 75 #else 76 #define DPRINTF(x) 77 #define DPRINTFN(n, x) 78 #endif 79 80 /* Permit loading the Intel firmware */ 81 static int iwi_accept_eula; 82 83 static int iwi_match(device_t, cfdata_t, void *); 84 static void iwi_attach(device_t, device_t, void *); 85 static int iwi_detach(device_t, int); 86 87 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 88 int); 89 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 90 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 91 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 92 int, bus_size_t, bus_size_t); 93 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 94 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 95 static struct mbuf * 96 iwi_alloc_rx_buf(struct iwi_softc *sc); 97 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 98 int); 99 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 100 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 101 102 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 103 static void iwi_node_free(struct ieee80211_node *); 104 105 static int iwi_cvtrate(int); 106 static int iwi_media_change(struct ifnet *); 107 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 108 static int iwi_wme_update(struct ieee80211com *); 109 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 110 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 111 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 112 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 113 struct iwi_frame *); 114 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 115 static void iwi_cmd_intr(struct iwi_softc *); 116 static void iwi_rx_intr(struct iwi_softc *); 117 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 118 static int iwi_intr(void *); 119 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 120 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 121 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 122 int); 123 static void iwi_start(struct ifnet *); 124 static void iwi_watchdog(struct ifnet *); 125 126 static int iwi_alloc_unr(struct iwi_softc *); 127 static void iwi_free_unr(struct iwi_softc *, int); 128 129 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 130 131 static int iwi_ioctl(struct ifnet *, u_long, void *); 132 static void iwi_stop_master(struct iwi_softc *); 133 static int iwi_reset(struct iwi_softc *); 134 static int iwi_load_ucode(struct iwi_softc *, void *, int); 135 static int iwi_load_firmware(struct iwi_softc *, void *, int); 136 static int iwi_cache_firmware(struct iwi_softc *); 137 static void iwi_free_firmware(struct iwi_softc *); 138 static int iwi_config(struct iwi_softc *); 139 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 140 static int iwi_scan(struct iwi_softc *); 141 static int iwi_auth_and_assoc(struct iwi_softc *); 142 static int iwi_init(struct ifnet *); 143 static void iwi_stop(struct ifnet *, int); 144 static int iwi_getrfkill(struct iwi_softc *); 145 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 146 static void iwi_sysctlattach(struct iwi_softc *); 147 148 /* 149 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 150 */ 151 static const struct ieee80211_rateset iwi_rateset_11a = 152 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 153 154 static const struct ieee80211_rateset iwi_rateset_11b = 155 { 4, { 2, 4, 11, 22 } }; 156 157 static const struct ieee80211_rateset iwi_rateset_11g = 158 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 159 160 static inline uint8_t 161 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 162 { 163 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 164 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 165 } 166 167 static inline uint32_t 168 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 169 { 170 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 171 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 172 } 173 174 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 175 iwi_detach, NULL); 176 177 static int 178 iwi_match(device_t parent, cfdata_t match, void *aux) 179 { 180 struct pci_attach_args *pa = aux; 181 182 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 183 return 0; 184 185 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 186 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 187 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 189 return 1; 190 191 return 0; 192 } 193 194 /* Base Address Register */ 195 #define IWI_PCI_BAR0 0x10 196 197 static void 198 iwi_attach(device_t parent, device_t self, void *aux) 199 { 200 struct iwi_softc *sc = device_private(self); 201 struct ieee80211com *ic = &sc->sc_ic; 202 struct ifnet *ifp = &sc->sc_if; 203 struct pci_attach_args *pa = aux; 204 const char *intrstr; 205 char devinfo[256]; 206 bus_space_tag_t memt; 207 bus_space_handle_t memh; 208 pci_intr_handle_t ih; 209 pcireg_t data; 210 uint16_t val; 211 int error, revision, i; 212 213 sc->sc_dev = self; 214 sc->sc_pct = pa->pa_pc; 215 sc->sc_pcitag = pa->pa_tag; 216 217 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof devinfo); 218 revision = PCI_REVISION(pa->pa_class); 219 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 220 221 /* clear unit numbers allocated to IBSS */ 222 sc->sc_unr = 0; 223 224 /* power up chip */ 225 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 226 NULL)) && error != EOPNOTSUPP) { 227 aprint_error_dev(self, "cannot activate %d\n", error); 228 return; 229 } 230 231 /* clear device specific PCI configuration register 0x41 */ 232 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 233 data &= ~0x0000ff00; 234 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 235 236 237 /* enable bus-mastering */ 238 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 239 data |= PCI_COMMAND_MASTER_ENABLE; 240 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 241 242 /* map the register window */ 243 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 244 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 245 if (error != 0) { 246 aprint_error_dev(self, "could not map memory space\n"); 247 return; 248 } 249 250 sc->sc_st = memt; 251 sc->sc_sh = memh; 252 sc->sc_dmat = pa->pa_dmat; 253 254 /* disable interrupts */ 255 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 256 257 if (pci_intr_map(pa, &ih) != 0) { 258 aprint_error_dev(self, "could not map interrupt\n"); 259 return; 260 } 261 262 intrstr = pci_intr_string(sc->sc_pct, ih); 263 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 264 if (sc->sc_ih == NULL) { 265 aprint_error_dev(self, "could not establish interrupt"); 266 if (intrstr != NULL) 267 aprint_error(" at %s", intrstr); 268 aprint_error("\n"); 269 return; 270 } 271 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 272 273 if (iwi_reset(sc) != 0) { 274 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 275 aprint_error_dev(self, "could not reset adapter\n"); 276 return; 277 } 278 279 ic->ic_ifp = ifp; 280 ic->ic_wme.wme_update = iwi_wme_update; 281 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 282 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 283 ic->ic_state = IEEE80211_S_INIT; 284 285 sc->sc_fwname = "ipw2200-bss.fw"; 286 287 /* set device capabilities */ 288 ic->ic_caps = 289 IEEE80211_C_IBSS | /* IBSS mode supported */ 290 IEEE80211_C_MONITOR | /* monitor mode supported */ 291 IEEE80211_C_TXPMGT | /* tx power management */ 292 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 293 IEEE80211_C_SHSLOT | /* short slot time supported */ 294 IEEE80211_C_WPA | /* 802.11i */ 295 IEEE80211_C_WME; /* 802.11e */ 296 297 /* read MAC address from EEPROM */ 298 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 299 ic->ic_myaddr[0] = val & 0xff; 300 ic->ic_myaddr[1] = val >> 8; 301 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 302 ic->ic_myaddr[2] = val & 0xff; 303 ic->ic_myaddr[3] = val >> 8; 304 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 305 ic->ic_myaddr[4] = val & 0xff; 306 ic->ic_myaddr[5] = val >> 8; 307 308 aprint_verbose_dev(self, "802.11 address %s\n", 309 ether_sprintf(ic->ic_myaddr)); 310 311 /* read the NIC type from EEPROM */ 312 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 313 sc->nictype = val & 0xff; 314 315 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 316 317 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 318 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 319 /* set supported .11a rates (2915ABG only) */ 320 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 321 322 /* set supported .11a channels */ 323 for (i = 36; i <= 64; i += 4) { 324 ic->ic_channels[i].ic_freq = 325 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 326 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 327 } 328 for (i = 149; i <= 165; i += 4) { 329 ic->ic_channels[i].ic_freq = 330 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 331 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 332 } 333 } 334 335 /* set supported .11b and .11g rates */ 336 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 337 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 338 339 /* set supported .11b and .11g channels (1 through 14) */ 340 for (i = 1; i <= 14; i++) { 341 ic->ic_channels[i].ic_freq = 342 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 343 ic->ic_channels[i].ic_flags = 344 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 345 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 346 } 347 348 ifp->if_softc = sc; 349 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 350 ifp->if_init = iwi_init; 351 ifp->if_stop = iwi_stop; 352 ifp->if_ioctl = iwi_ioctl; 353 ifp->if_start = iwi_start; 354 ifp->if_watchdog = iwi_watchdog; 355 IFQ_SET_READY(&ifp->if_snd); 356 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 357 358 if_attach(ifp); 359 ieee80211_ifattach(ic); 360 /* override default methods */ 361 ic->ic_node_alloc = iwi_node_alloc; 362 sc->sc_node_free = ic->ic_node_free; 363 ic->ic_node_free = iwi_node_free; 364 /* override state transition machine */ 365 sc->sc_newstate = ic->ic_newstate; 366 ic->ic_newstate = iwi_newstate; 367 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 368 369 /* 370 * Allocate rings. 371 */ 372 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 373 aprint_error_dev(self, "could not allocate command ring\n"); 374 goto fail; 375 } 376 377 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 378 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 379 if (error != 0) { 380 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 381 goto fail; 382 } 383 384 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 385 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 386 if (error != 0) { 387 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 388 goto fail; 389 } 390 391 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 392 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 393 if (error != 0) { 394 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 395 goto fail; 396 } 397 398 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 399 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 400 if (error != 0) { 401 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 402 goto fail; 403 } 404 405 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 406 aprint_error_dev(self, "could not allocate Rx ring\n"); 407 goto fail; 408 } 409 410 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 411 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 412 413 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 414 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 415 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 416 417 sc->sc_txtap_len = sizeof sc->sc_txtapu; 418 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 419 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 420 421 iwi_sysctlattach(sc); 422 423 if (pmf_device_register(self, NULL, NULL)) 424 pmf_class_network_register(self, ifp); 425 else 426 aprint_error_dev(self, "couldn't establish power handler\n"); 427 428 ieee80211_announce(ic); 429 430 return; 431 432 fail: iwi_detach(self, 0); 433 } 434 435 static int 436 iwi_detach(device_t self, int flags) 437 { 438 struct iwi_softc *sc = device_private(self); 439 struct ifnet *ifp = &sc->sc_if; 440 441 pmf_device_deregister(self); 442 443 if (ifp != NULL) 444 iwi_stop(ifp, 1); 445 446 iwi_free_firmware(sc); 447 448 ieee80211_ifdetach(&sc->sc_ic); 449 if (ifp != NULL) 450 if_detach(ifp); 451 452 iwi_free_cmd_ring(sc, &sc->cmdq); 453 iwi_free_tx_ring(sc, &sc->txq[0]); 454 iwi_free_tx_ring(sc, &sc->txq[1]); 455 iwi_free_tx_ring(sc, &sc->txq[2]); 456 iwi_free_tx_ring(sc, &sc->txq[3]); 457 iwi_free_rx_ring(sc, &sc->rxq); 458 459 if (sc->sc_ih != NULL) { 460 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 461 sc->sc_ih = NULL; 462 } 463 464 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 465 466 return 0; 467 } 468 469 static int 470 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 471 int count) 472 { 473 int error, nsegs; 474 475 ring->count = count; 476 ring->queued = 0; 477 ring->cur = ring->next = 0; 478 479 /* 480 * Allocate and map command ring 481 */ 482 error = bus_dmamap_create(sc->sc_dmat, 483 IWI_CMD_DESC_SIZE * count, 1, 484 IWI_CMD_DESC_SIZE * count, 0, 485 BUS_DMA_NOWAIT, &ring->desc_map); 486 if (error != 0) { 487 aprint_error_dev(sc->sc_dev, 488 "could not create command ring DMA map\n"); 489 ring->desc_map = NULL; 490 goto fail; 491 } 492 493 error = bus_dmamem_alloc(sc->sc_dmat, 494 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 495 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 496 if (error != 0) { 497 aprint_error_dev(sc->sc_dev, 498 "could not allocate command ring DMA memory\n"); 499 goto fail; 500 } 501 502 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 503 IWI_CMD_DESC_SIZE * count, 504 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 505 if (error != 0) { 506 aprint_error_dev(sc->sc_dev, 507 "could not map command ring DMA memory\n"); 508 goto fail; 509 } 510 511 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 512 IWI_CMD_DESC_SIZE * count, NULL, 513 BUS_DMA_NOWAIT); 514 if (error != 0) { 515 aprint_error_dev(sc->sc_dev, 516 "could not load command ring DMA map\n"); 517 goto fail; 518 } 519 520 memset(sc->cmdq.desc, 0, 521 IWI_CMD_DESC_SIZE * count); 522 523 return 0; 524 525 fail: return error; 526 } 527 528 static void 529 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 530 { 531 int i; 532 533 for (i = ring->next; i != ring->cur;) { 534 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 535 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 536 BUS_DMASYNC_POSTWRITE); 537 538 wakeup(&ring->desc[i]); 539 i = (i + 1) % ring->count; 540 } 541 542 ring->queued = 0; 543 ring->cur = ring->next = 0; 544 } 545 546 static void 547 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 548 { 549 if (ring->desc_map != NULL) { 550 if (ring->desc != NULL) { 551 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 552 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 553 IWI_CMD_DESC_SIZE * ring->count); 554 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 555 } 556 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 557 } 558 } 559 560 static int 561 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 562 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 563 { 564 int i, error, nsegs; 565 566 ring->count = 0; 567 ring->queued = 0; 568 ring->cur = ring->next = 0; 569 ring->csr_ridx = csr_ridx; 570 ring->csr_widx = csr_widx; 571 572 /* 573 * Allocate and map Tx ring 574 */ 575 error = bus_dmamap_create(sc->sc_dmat, 576 IWI_TX_DESC_SIZE * count, 1, 577 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 578 &ring->desc_map); 579 if (error != 0) { 580 aprint_error_dev(sc->sc_dev, 581 "could not create tx ring DMA map\n"); 582 ring->desc_map = NULL; 583 goto fail; 584 } 585 586 error = bus_dmamem_alloc(sc->sc_dmat, 587 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 588 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 589 if (error != 0) { 590 aprint_error_dev(sc->sc_dev, 591 "could not allocate tx ring DMA memory\n"); 592 goto fail; 593 } 594 595 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 596 IWI_TX_DESC_SIZE * count, 597 (void **)&ring->desc, BUS_DMA_NOWAIT); 598 if (error != 0) { 599 aprint_error_dev(sc->sc_dev, 600 "could not map tx ring DMA memory\n"); 601 goto fail; 602 } 603 604 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 605 IWI_TX_DESC_SIZE * count, NULL, 606 BUS_DMA_NOWAIT); 607 if (error != 0) { 608 aprint_error_dev(sc->sc_dev, 609 "could not load tx ring DMA map\n"); 610 goto fail; 611 } 612 613 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 614 615 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 616 M_NOWAIT | M_ZERO); 617 if (ring->data == NULL) { 618 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 619 error = ENOMEM; 620 goto fail; 621 } 622 ring->count = count; 623 624 /* 625 * Allocate Tx buffers DMA maps 626 */ 627 for (i = 0; i < count; i++) { 628 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 629 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 630 if (error != 0) { 631 aprint_error_dev(sc->sc_dev, 632 "could not create tx buf DMA map"); 633 ring->data[i].map = NULL; 634 goto fail; 635 } 636 } 637 return 0; 638 639 fail: return error; 640 } 641 642 static void 643 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 644 { 645 struct iwi_tx_data *data; 646 int i; 647 648 for (i = 0; i < ring->count; i++) { 649 data = &ring->data[i]; 650 651 if (data->m != NULL) { 652 m_freem(data->m); 653 data->m = NULL; 654 } 655 656 if (data->map != NULL) { 657 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 658 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 659 bus_dmamap_unload(sc->sc_dmat, data->map); 660 } 661 662 if (data->ni != NULL) { 663 ieee80211_free_node(data->ni); 664 data->ni = NULL; 665 } 666 } 667 668 ring->queued = 0; 669 ring->cur = ring->next = 0; 670 } 671 672 static void 673 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 674 { 675 int i; 676 struct iwi_tx_data *data; 677 678 if (ring->desc_map != NULL) { 679 if (ring->desc != NULL) { 680 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 681 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 682 IWI_TX_DESC_SIZE * ring->count); 683 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 684 } 685 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 686 } 687 688 for (i = 0; i < ring->count; i++) { 689 data = &ring->data[i]; 690 691 if (data->m != NULL) { 692 m_freem(data->m); 693 } 694 695 if (data->map != NULL) { 696 bus_dmamap_unload(sc->sc_dmat, data->map); 697 bus_dmamap_destroy(sc->sc_dmat, data->map); 698 } 699 } 700 } 701 702 static int 703 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 704 { 705 int i, error; 706 707 ring->count = 0; 708 ring->cur = 0; 709 710 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 711 M_NOWAIT | M_ZERO); 712 if (ring->data == NULL) { 713 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 714 error = ENOMEM; 715 goto fail; 716 } 717 718 ring->count = count; 719 720 /* 721 * Allocate and map Rx buffers 722 */ 723 for (i = 0; i < count; i++) { 724 725 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 726 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 727 if (error != 0) { 728 aprint_error_dev(sc->sc_dev, 729 "could not create rx buf DMA map"); 730 ring->data[i].map = NULL; 731 goto fail; 732 } 733 734 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 735 error = ENOMEM; 736 goto fail; 737 } 738 739 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 740 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 741 if (error != 0) { 742 aprint_error_dev(sc->sc_dev, 743 "could not load rx buffer DMA map\n"); 744 goto fail; 745 } 746 747 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 748 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 749 } 750 751 return 0; 752 753 fail: return error; 754 } 755 756 static void 757 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 758 { 759 ring->cur = 0; 760 } 761 762 static void 763 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 764 { 765 int i; 766 struct iwi_rx_data *data; 767 768 for (i = 0; i < ring->count; i++) { 769 data = &ring->data[i]; 770 771 if (data->m != NULL) { 772 m_freem(data->m); 773 } 774 775 if (data->map != NULL) { 776 bus_dmamap_unload(sc->sc_dmat, data->map); 777 bus_dmamap_destroy(sc->sc_dmat, data->map); 778 } 779 780 } 781 } 782 783 static struct ieee80211_node * 784 iwi_node_alloc(struct ieee80211_node_table *nt) 785 { 786 struct iwi_node *in; 787 788 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 789 if (in == NULL) 790 return NULL; 791 792 in->in_station = -1; 793 794 return &in->in_node; 795 } 796 797 static int 798 iwi_alloc_unr(struct iwi_softc *sc) 799 { 800 int i; 801 802 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 803 if ((sc->sc_unr & (1 << i)) == 0) { 804 sc->sc_unr |= 1 << i; 805 return i; 806 } 807 808 return -1; 809 } 810 811 static void 812 iwi_free_unr(struct iwi_softc *sc, int r) 813 { 814 815 sc->sc_unr &= 1 << r; 816 } 817 818 static void 819 iwi_node_free(struct ieee80211_node *ni) 820 { 821 struct ieee80211com *ic = ni->ni_ic; 822 struct iwi_softc *sc = ic->ic_ifp->if_softc; 823 struct iwi_node *in = (struct iwi_node *)ni; 824 825 if (in->in_station != -1) 826 iwi_free_unr(sc, in->in_station); 827 828 sc->sc_node_free(ni); 829 } 830 831 static int 832 iwi_media_change(struct ifnet *ifp) 833 { 834 int error; 835 836 error = ieee80211_media_change(ifp); 837 if (error != ENETRESET) 838 return error; 839 840 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 841 iwi_init(ifp); 842 843 return 0; 844 } 845 846 /* 847 * Convert h/w rate code to IEEE rate code. 848 */ 849 static int 850 iwi_cvtrate(int iwirate) 851 { 852 switch (iwirate) { 853 case IWI_RATE_DS1: return 2; 854 case IWI_RATE_DS2: return 4; 855 case IWI_RATE_DS5: return 11; 856 case IWI_RATE_DS11: return 22; 857 case IWI_RATE_OFDM6: return 12; 858 case IWI_RATE_OFDM9: return 18; 859 case IWI_RATE_OFDM12: return 24; 860 case IWI_RATE_OFDM18: return 36; 861 case IWI_RATE_OFDM24: return 48; 862 case IWI_RATE_OFDM36: return 72; 863 case IWI_RATE_OFDM48: return 96; 864 case IWI_RATE_OFDM54: return 108; 865 } 866 return 0; 867 } 868 869 /* 870 * The firmware automatically adapts the transmit speed. We report its current 871 * value here. 872 */ 873 static void 874 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 875 { 876 struct iwi_softc *sc = ifp->if_softc; 877 struct ieee80211com *ic = &sc->sc_ic; 878 int rate; 879 880 imr->ifm_status = IFM_AVALID; 881 imr->ifm_active = IFM_IEEE80211; 882 if (ic->ic_state == IEEE80211_S_RUN) 883 imr->ifm_status |= IFM_ACTIVE; 884 885 /* read current transmission rate from adapter */ 886 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 887 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 888 889 switch (ic->ic_opmode) { 890 case IEEE80211_M_STA: 891 break; 892 893 case IEEE80211_M_IBSS: 894 imr->ifm_active |= IFM_IEEE80211_ADHOC; 895 break; 896 897 case IEEE80211_M_MONITOR: 898 imr->ifm_active |= IFM_IEEE80211_MONITOR; 899 break; 900 901 case IEEE80211_M_AHDEMO: 902 case IEEE80211_M_HOSTAP: 903 /* should not get there */ 904 break; 905 } 906 } 907 908 static int 909 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 910 { 911 struct iwi_softc *sc = ic->ic_ifp->if_softc; 912 913 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 914 ieee80211_state_name[ic->ic_state], 915 ieee80211_state_name[nstate], sc->flags)); 916 917 switch (nstate) { 918 case IEEE80211_S_SCAN: 919 if (sc->flags & IWI_FLAG_SCANNING) 920 break; 921 922 ieee80211_node_table_reset(&ic->ic_scan); 923 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 924 sc->flags |= IWI_FLAG_SCANNING; 925 /* blink the led while scanning */ 926 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 927 iwi_scan(sc); 928 break; 929 930 case IEEE80211_S_AUTH: 931 iwi_auth_and_assoc(sc); 932 break; 933 934 case IEEE80211_S_RUN: 935 if (ic->ic_opmode == IEEE80211_M_IBSS) 936 ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 937 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 938 iwi_set_chan(sc, ic->ic_ibss_chan); 939 940 return (*sc->sc_newstate)(ic, nstate, 941 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 942 943 case IEEE80211_S_ASSOC: 944 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 945 break; 946 947 case IEEE80211_S_INIT: 948 sc->flags &= ~IWI_FLAG_SCANNING; 949 return (*sc->sc_newstate)(ic, nstate, arg); 950 } 951 952 ic->ic_state = nstate; 953 return 0; 954 } 955 956 /* 957 * WME parameters coming from IEEE 802.11e specification. These values are 958 * already declared in ieee80211_proto.c, but they are static so they can't 959 * be reused here. 960 */ 961 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 962 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 963 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 964 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 965 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 966 }; 967 968 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 969 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 970 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 971 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 972 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 973 }; 974 975 static int 976 iwi_wme_update(struct ieee80211com *ic) 977 { 978 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 979 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 980 struct iwi_softc *sc = ic->ic_ifp->if_softc; 981 struct iwi_wme_params wme[3]; 982 const struct wmeParams *wmep; 983 int ac; 984 985 /* 986 * We shall not override firmware default WME values if WME is not 987 * actually enabled. 988 */ 989 if (!(ic->ic_flags & IEEE80211_F_WME)) 990 return 0; 991 992 for (ac = 0; ac < WME_NUM_AC; ac++) { 993 /* set WME values for current operating mode */ 994 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 995 wme[0].aifsn[ac] = wmep->wmep_aifsn; 996 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 997 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 998 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 999 wme[0].acm[ac] = wmep->wmep_acm; 1000 1001 /* set WME values for CCK modulation */ 1002 wmep = &iwi_wme_cck_params[ac]; 1003 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1004 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1005 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1006 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1007 wme[1].acm[ac] = wmep->wmep_acm; 1008 1009 /* set WME values for OFDM modulation */ 1010 wmep = &iwi_wme_ofdm_params[ac]; 1011 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1012 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1013 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1014 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1015 wme[2].acm[ac] = wmep->wmep_acm; 1016 } 1017 1018 DPRINTF(("Setting WME parameters\n")); 1019 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1020 #undef IWI_USEC 1021 #undef IWI_EXP2 1022 } 1023 1024 /* 1025 * Read 16 bits at address 'addr' from the serial EEPROM. 1026 */ 1027 static uint16_t 1028 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1029 { 1030 uint32_t tmp; 1031 uint16_t val; 1032 int n; 1033 1034 /* Clock C once before the first command */ 1035 IWI_EEPROM_CTL(sc, 0); 1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1037 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1038 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1039 1040 /* Write start bit (1) */ 1041 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1042 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1043 1044 /* Write READ opcode (10) */ 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1047 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1048 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1049 1050 /* Write address A7-A0 */ 1051 for (n = 7; n >= 0; n--) { 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1053 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1054 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1055 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1056 } 1057 1058 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1059 1060 /* Read data Q15-Q0 */ 1061 val = 0; 1062 for (n = 15; n >= 0; n--) { 1063 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1064 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1065 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1066 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1067 } 1068 1069 IWI_EEPROM_CTL(sc, 0); 1070 1071 /* Clear Chip Select and clock C */ 1072 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1073 IWI_EEPROM_CTL(sc, 0); 1074 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1075 1076 return val; 1077 } 1078 1079 /* 1080 * XXX: Hack to set the current channel to the value advertised in beacons or 1081 * probe responses. Only used during AP detection. 1082 */ 1083 static void 1084 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1085 { 1086 struct ieee80211_frame *wh; 1087 uint8_t subtype; 1088 uint8_t *frm, *efrm; 1089 1090 wh = mtod(m, struct ieee80211_frame *); 1091 1092 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1093 return; 1094 1095 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1096 1097 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1098 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1099 return; 1100 1101 frm = (uint8_t *)(wh + 1); 1102 efrm = mtod(m, uint8_t *) + m->m_len; 1103 1104 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1105 while (frm < efrm) { 1106 if (*frm == IEEE80211_ELEMID_DSPARMS) 1107 #if IEEE80211_CHAN_MAX < 255 1108 if (frm[2] <= IEEE80211_CHAN_MAX) 1109 #endif 1110 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1111 1112 frm += frm[1] + 2; 1113 } 1114 } 1115 1116 static struct mbuf * 1117 iwi_alloc_rx_buf(struct iwi_softc *sc) 1118 { 1119 struct mbuf *m; 1120 1121 MGETHDR(m, M_DONTWAIT, MT_DATA); 1122 if (m == NULL) { 1123 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1124 return NULL; 1125 } 1126 1127 MCLGET(m, M_DONTWAIT); 1128 if (!(m->m_flags & M_EXT)) { 1129 aprint_error_dev(sc->sc_dev, 1130 "could not allocate rx mbuf cluster\n"); 1131 m_freem(m); 1132 return NULL; 1133 } 1134 1135 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1136 return m; 1137 } 1138 1139 static void 1140 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1141 struct iwi_frame *frame) 1142 { 1143 struct ieee80211com *ic = &sc->sc_ic; 1144 struct ifnet *ifp = ic->ic_ifp; 1145 struct mbuf *m, *m_new; 1146 struct ieee80211_frame *wh; 1147 struct ieee80211_node *ni; 1148 int error; 1149 1150 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1151 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1152 1153 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1154 le16toh(frame->len) > MCLBYTES) { 1155 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1156 ifp->if_ierrors++; 1157 return; 1158 } 1159 1160 /* 1161 * Try to allocate a new mbuf for this ring element and 1162 * load it before processing the current mbuf. If the ring 1163 * element cannot be reloaded, drop the received packet 1164 * and reuse the old mbuf. In the unlikely case that 1165 * the old mbuf can't be reloaded either, explicitly panic. 1166 * 1167 * XXX Reorganize buffer by moving elements from the logical 1168 * end of the ring to the front instead of dropping. 1169 */ 1170 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1171 ifp->if_ierrors++; 1172 return; 1173 } 1174 1175 bus_dmamap_unload(sc->sc_dmat, data->map); 1176 1177 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1178 BUS_DMA_READ | BUS_DMA_NOWAIT); 1179 if (error != 0) { 1180 aprint_error_dev(sc->sc_dev, 1181 "could not load rx buf DMA map\n"); 1182 m_freem(m_new); 1183 ifp->if_ierrors++; 1184 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1185 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1186 if (error) 1187 panic("%s: unable to remap rx buf", 1188 device_xname(sc->sc_dev)); 1189 return; 1190 } 1191 1192 /* 1193 * New mbuf successfully loaded, update RX ring and continue 1194 * processing. 1195 */ 1196 m = data->m; 1197 data->m = m_new; 1198 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1199 1200 /* Finalize mbuf */ 1201 m->m_pkthdr.rcvif = ifp; 1202 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1203 sizeof (struct iwi_frame) + le16toh(frame->len); 1204 1205 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1206 1207 if (ic->ic_state == IEEE80211_S_SCAN) 1208 iwi_fix_channel(ic, m); 1209 1210 if (sc->sc_drvbpf != NULL) { 1211 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1212 1213 tap->wr_flags = 0; 1214 tap->wr_rate = iwi_cvtrate(frame->rate); 1215 tap->wr_chan_freq = 1216 htole16(ic->ic_channels[frame->chan].ic_freq); 1217 tap->wr_chan_flags = 1218 htole16(ic->ic_channels[frame->chan].ic_flags); 1219 tap->wr_antsignal = frame->signal; 1220 tap->wr_antenna = frame->antenna; 1221 1222 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1223 } 1224 wh = mtod(m, struct ieee80211_frame *); 1225 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1226 1227 /* Send the frame to the upper layer */ 1228 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1229 1230 /* node is no longer needed */ 1231 ieee80211_free_node(ni); 1232 } 1233 1234 static void 1235 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1236 { 1237 struct ieee80211com *ic = &sc->sc_ic; 1238 struct iwi_notif_scan_channel *chan; 1239 struct iwi_notif_scan_complete *scan; 1240 struct iwi_notif_authentication *auth; 1241 struct iwi_notif_association *assoc; 1242 struct iwi_notif_beacon_state *beacon; 1243 1244 switch (notif->type) { 1245 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1246 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1247 1248 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1249 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1250 break; 1251 1252 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1253 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1254 1255 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1256 scan->status)); 1257 1258 /* monitor mode uses scan to set the channel ... */ 1259 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1260 sc->flags &= ~IWI_FLAG_SCANNING; 1261 ieee80211_end_scan(ic); 1262 } else 1263 iwi_set_chan(sc, ic->ic_ibss_chan); 1264 break; 1265 1266 case IWI_NOTIF_TYPE_AUTHENTICATION: 1267 auth = (struct iwi_notif_authentication *)(notif + 1); 1268 1269 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1270 1271 switch (auth->state) { 1272 case IWI_AUTH_SUCCESS: 1273 ieee80211_node_authorize(ic->ic_bss); 1274 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1275 break; 1276 1277 case IWI_AUTH_FAIL: 1278 break; 1279 1280 default: 1281 aprint_error_dev(sc->sc_dev, 1282 "unknown authentication state %u\n", auth->state); 1283 } 1284 break; 1285 1286 case IWI_NOTIF_TYPE_ASSOCIATION: 1287 assoc = (struct iwi_notif_association *)(notif + 1); 1288 1289 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1290 assoc->status)); 1291 1292 switch (assoc->state) { 1293 case IWI_AUTH_SUCCESS: 1294 /* re-association, do nothing */ 1295 break; 1296 1297 case IWI_ASSOC_SUCCESS: 1298 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1299 break; 1300 1301 case IWI_ASSOC_FAIL: 1302 ieee80211_begin_scan(ic, 1); 1303 break; 1304 1305 default: 1306 aprint_error_dev(sc->sc_dev, 1307 "unknown association state %u\n", assoc->state); 1308 } 1309 break; 1310 1311 case IWI_NOTIF_TYPE_BEACON: 1312 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1313 1314 if (beacon->state == IWI_BEACON_MISS) { 1315 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1316 device_xname(sc->sc_dev), le32toh(beacon->number))); 1317 } 1318 break; 1319 1320 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1321 case IWI_NOTIF_TYPE_LINK_QUALITY: 1322 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1323 case IWI_NOTIF_TYPE_CALIBRATION: 1324 case IWI_NOTIF_TYPE_NOISE: 1325 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1326 break; 1327 1328 default: 1329 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1330 device_xname(sc->sc_dev), notif->type, notif->flags, 1331 le16toh(notif->len))); 1332 } 1333 } 1334 1335 static void 1336 iwi_cmd_intr(struct iwi_softc *sc) 1337 { 1338 uint32_t hw; 1339 1340 hw = CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1341 1342 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1343 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1344 BUS_DMASYNC_POSTWRITE); 1345 1346 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1347 1348 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1349 1350 if (--sc->cmdq.queued > 0) { 1351 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1352 } 1353 } 1354 1355 static void 1356 iwi_rx_intr(struct iwi_softc *sc) 1357 { 1358 struct iwi_rx_data *data; 1359 struct iwi_hdr *hdr; 1360 uint32_t hw; 1361 1362 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1363 1364 for (; sc->rxq.cur != hw;) { 1365 data = &sc->rxq.data[sc->rxq.cur]; 1366 1367 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1368 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1369 1370 hdr = mtod(data->m, struct iwi_hdr *); 1371 1372 switch (hdr->type) { 1373 case IWI_HDR_TYPE_FRAME: 1374 iwi_frame_intr(sc, data, sc->rxq.cur, 1375 (struct iwi_frame *)(hdr + 1)); 1376 break; 1377 1378 case IWI_HDR_TYPE_NOTIF: 1379 iwi_notification_intr(sc, 1380 (struct iwi_notif *)(hdr + 1)); 1381 break; 1382 1383 default: 1384 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1385 hdr->type); 1386 } 1387 1388 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1389 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1390 1391 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1392 1393 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1394 } 1395 1396 /* Tell the firmware what we have processed */ 1397 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1398 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1399 } 1400 1401 static void 1402 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1403 { 1404 struct ifnet *ifp = &sc->sc_if; 1405 struct iwi_tx_data *data; 1406 uint32_t hw; 1407 1408 hw = CSR_READ_4(sc, txq->csr_ridx); 1409 1410 for (; txq->next != hw;) { 1411 data = &txq->data[txq->next]; 1412 1413 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1414 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1415 bus_dmamap_unload(sc->sc_dmat, data->map); 1416 m_freem(data->m); 1417 data->m = NULL; 1418 ieee80211_free_node(data->ni); 1419 data->ni = NULL; 1420 1421 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1422 1423 ifp->if_opackets++; 1424 1425 txq->queued--; 1426 txq->next = (txq->next + 1) % txq->count; 1427 } 1428 1429 sc->sc_tx_timer = 0; 1430 ifp->if_flags &= ~IFF_OACTIVE; 1431 1432 /* Call start() since some buffer descriptors have been released */ 1433 (*ifp->if_start)(ifp); 1434 } 1435 1436 static int 1437 iwi_intr(void *arg) 1438 { 1439 struct iwi_softc *sc = arg; 1440 uint32_t r; 1441 1442 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1443 return 0; 1444 1445 /* Acknowledge interrupts */ 1446 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1447 1448 if (r & IWI_INTR_FATAL_ERROR) { 1449 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1450 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1451 iwi_stop(&sc->sc_if, 1); 1452 return (1); 1453 } 1454 1455 if (r & IWI_INTR_FW_INITED) { 1456 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1457 wakeup(sc); 1458 } 1459 1460 if (r & IWI_INTR_RADIO_OFF) { 1461 DPRINTF(("radio transmitter off\n")); 1462 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1463 iwi_stop(&sc->sc_if, 1); 1464 return (1); 1465 } 1466 1467 if (r & IWI_INTR_CMD_DONE) 1468 iwi_cmd_intr(sc); 1469 1470 if (r & IWI_INTR_TX1_DONE) 1471 iwi_tx_intr(sc, &sc->txq[0]); 1472 1473 if (r & IWI_INTR_TX2_DONE) 1474 iwi_tx_intr(sc, &sc->txq[1]); 1475 1476 if (r & IWI_INTR_TX3_DONE) 1477 iwi_tx_intr(sc, &sc->txq[2]); 1478 1479 if (r & IWI_INTR_TX4_DONE) 1480 iwi_tx_intr(sc, &sc->txq[3]); 1481 1482 if (r & IWI_INTR_RX_DONE) 1483 iwi_rx_intr(sc); 1484 1485 if (r & IWI_INTR_PARITY_ERROR) 1486 aprint_error_dev(sc->sc_dev, "parity error\n"); 1487 1488 return 1; 1489 } 1490 1491 static int 1492 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1493 int async) 1494 { 1495 struct iwi_cmd_desc *desc; 1496 1497 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1498 1499 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1500 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1501 desc->type = type; 1502 desc->len = len; 1503 memcpy(desc->data, data, len); 1504 1505 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1506 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1507 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1508 1509 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1510 sc->cmdq.cur, type, len, async)); 1511 1512 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1513 1514 if (++sc->cmdq.queued == 1) 1515 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1516 1517 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1518 } 1519 1520 static void 1521 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1522 { 1523 struct iwi_ibssnode node; 1524 1525 /* write node information into NIC memory */ 1526 memset(&node, 0, sizeof node); 1527 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1528 1529 CSR_WRITE_REGION_1(sc, 1530 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1531 (uint8_t *)&node, sizeof node); 1532 } 1533 1534 static int 1535 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1536 int ac) 1537 { 1538 struct iwi_softc *sc = ifp->if_softc; 1539 struct ieee80211com *ic = &sc->sc_ic; 1540 struct iwi_node *in = (struct iwi_node *)ni; 1541 struct ieee80211_frame *wh; 1542 struct ieee80211_key *k; 1543 const struct chanAccParams *cap; 1544 struct iwi_tx_ring *txq = &sc->txq[ac]; 1545 struct iwi_tx_data *data; 1546 struct iwi_tx_desc *desc; 1547 struct mbuf *mnew; 1548 int error, hdrlen, i, noack = 0; 1549 1550 wh = mtod(m0, struct ieee80211_frame *); 1551 1552 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1553 hdrlen = sizeof (struct ieee80211_qosframe); 1554 cap = &ic->ic_wme.wme_chanParams; 1555 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1556 } else 1557 hdrlen = sizeof (struct ieee80211_frame); 1558 1559 /* 1560 * This is only used in IBSS mode where the firmware expect an index 1561 * in a h/w table instead of a destination address. 1562 */ 1563 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1564 in->in_station = iwi_alloc_unr(sc); 1565 1566 if (in->in_station == -1) { /* h/w table is full */ 1567 m_freem(m0); 1568 ieee80211_free_node(ni); 1569 ifp->if_oerrors++; 1570 return 0; 1571 } 1572 iwi_write_ibssnode(sc, in); 1573 } 1574 1575 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1576 k = ieee80211_crypto_encap(ic, ni, m0); 1577 if (k == NULL) { 1578 m_freem(m0); 1579 return ENOBUFS; 1580 } 1581 1582 /* packet header may have moved, reset our local pointer */ 1583 wh = mtod(m0, struct ieee80211_frame *); 1584 } 1585 1586 if (sc->sc_drvbpf != NULL) { 1587 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1588 1589 tap->wt_flags = 0; 1590 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1591 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1592 1593 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1594 } 1595 1596 data = &txq->data[txq->cur]; 1597 desc = &txq->desc[txq->cur]; 1598 1599 /* save and trim IEEE802.11 header */ 1600 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1601 m_adj(m0, hdrlen); 1602 1603 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1604 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1605 if (error != 0 && error != EFBIG) { 1606 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1607 error); 1608 m_freem(m0); 1609 return error; 1610 } 1611 if (error != 0) { 1612 /* too many fragments, linearize */ 1613 1614 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1615 if (mnew == NULL) { 1616 m_freem(m0); 1617 return ENOMEM; 1618 } 1619 1620 M_COPY_PKTHDR(mnew, m0); 1621 1622 /* If the data won't fit in the header, get a cluster */ 1623 if (m0->m_pkthdr.len > MHLEN) { 1624 MCLGET(mnew, M_DONTWAIT); 1625 if (!(mnew->m_flags & M_EXT)) { 1626 m_freem(m0); 1627 m_freem(mnew); 1628 return ENOMEM; 1629 } 1630 } 1631 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1632 m_freem(m0); 1633 mnew->m_len = mnew->m_pkthdr.len; 1634 m0 = mnew; 1635 1636 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1637 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1638 if (error != 0) { 1639 aprint_error_dev(sc->sc_dev, 1640 "could not map mbuf (error %d)\n", error); 1641 m_freem(m0); 1642 return error; 1643 } 1644 } 1645 1646 data->m = m0; 1647 data->ni = ni; 1648 1649 desc->hdr.type = IWI_HDR_TYPE_DATA; 1650 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1651 desc->station = 1652 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1653 desc->cmd = IWI_DATA_CMD_TX; 1654 desc->len = htole16(m0->m_pkthdr.len); 1655 desc->flags = 0; 1656 desc->xflags = 0; 1657 1658 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1659 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1660 1661 #if 0 1662 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1663 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1664 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1665 } else 1666 #endif 1667 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1668 1669 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1670 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1671 1672 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1673 desc->xflags |= IWI_DATA_XFLAG_QOS; 1674 1675 if (ic->ic_curmode == IEEE80211_MODE_11B) 1676 desc->xflags |= IWI_DATA_XFLAG_CCK; 1677 1678 desc->nseg = htole32(data->map->dm_nsegs); 1679 for (i = 0; i < data->map->dm_nsegs; i++) { 1680 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1681 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1682 } 1683 1684 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1685 txq->cur * IWI_TX_DESC_SIZE, 1686 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1687 1688 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1689 BUS_DMASYNC_PREWRITE); 1690 1691 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1692 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1693 1694 /* Inform firmware about this new packet */ 1695 txq->queued++; 1696 txq->cur = (txq->cur + 1) % txq->count; 1697 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1698 1699 return 0; 1700 } 1701 1702 static void 1703 iwi_start(struct ifnet *ifp) 1704 { 1705 struct iwi_softc *sc = ifp->if_softc; 1706 struct ieee80211com *ic = &sc->sc_ic; 1707 struct mbuf *m0; 1708 struct ether_header *eh; 1709 struct ieee80211_node *ni; 1710 int ac; 1711 1712 if (ic->ic_state != IEEE80211_S_RUN) 1713 return; 1714 1715 for (;;) { 1716 IF_DEQUEUE(&ifp->if_snd, m0); 1717 if (m0 == NULL) 1718 break; 1719 1720 if (m0->m_len < sizeof (struct ether_header) && 1721 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1722 ifp->if_oerrors++; 1723 continue; 1724 } 1725 1726 eh = mtod(m0, struct ether_header *); 1727 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1728 if (ni == NULL) { 1729 m_freem(m0); 1730 ifp->if_oerrors++; 1731 continue; 1732 } 1733 1734 /* classify mbuf so we can find which tx ring to use */ 1735 if (ieee80211_classify(ic, m0, ni) != 0) { 1736 m_freem(m0); 1737 ieee80211_free_node(ni); 1738 ifp->if_oerrors++; 1739 continue; 1740 } 1741 1742 /* no QoS encapsulation for EAPOL frames */ 1743 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1744 M_WME_GETAC(m0) : WME_AC_BE; 1745 1746 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1747 /* there is no place left in this ring */ 1748 IF_PREPEND(&ifp->if_snd, m0); 1749 ifp->if_flags |= IFF_OACTIVE; 1750 break; 1751 } 1752 1753 bpf_mtap(ifp, m0); 1754 1755 m0 = ieee80211_encap(ic, m0, ni); 1756 if (m0 == NULL) { 1757 ieee80211_free_node(ni); 1758 ifp->if_oerrors++; 1759 continue; 1760 } 1761 1762 bpf_mtap3(ic->ic_rawbpf, m0); 1763 1764 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1765 ieee80211_free_node(ni); 1766 ifp->if_oerrors++; 1767 break; 1768 } 1769 1770 /* start watchdog timer */ 1771 sc->sc_tx_timer = 5; 1772 ifp->if_timer = 1; 1773 } 1774 } 1775 1776 static void 1777 iwi_watchdog(struct ifnet *ifp) 1778 { 1779 struct iwi_softc *sc = ifp->if_softc; 1780 1781 ifp->if_timer = 0; 1782 1783 if (sc->sc_tx_timer > 0) { 1784 if (--sc->sc_tx_timer == 0) { 1785 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1786 ifp->if_oerrors++; 1787 ifp->if_flags &= ~IFF_UP; 1788 iwi_stop(ifp, 1); 1789 return; 1790 } 1791 ifp->if_timer = 1; 1792 } 1793 1794 ieee80211_watchdog(&sc->sc_ic); 1795 } 1796 1797 static int 1798 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1799 { 1800 uint32_t size, buf[128]; 1801 1802 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1803 memset(buf, 0, sizeof buf); 1804 return copyout(buf, tbl, sizeof buf); 1805 } 1806 1807 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1808 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1809 1810 return copyout(buf, tbl, sizeof buf); 1811 } 1812 1813 static int 1814 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1815 { 1816 #define IS_RUNNING(ifp) \ 1817 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1818 1819 struct iwi_softc *sc = ifp->if_softc; 1820 struct ieee80211com *ic = &sc->sc_ic; 1821 struct ifreq *ifr = (struct ifreq *)data; 1822 int s, error = 0; 1823 int val; 1824 1825 s = splnet(); 1826 1827 switch (cmd) { 1828 case SIOCSIFFLAGS: 1829 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1830 break; 1831 if (ifp->if_flags & IFF_UP) { 1832 if (!(ifp->if_flags & IFF_RUNNING)) 1833 iwi_init(ifp); 1834 } else { 1835 if (ifp->if_flags & IFF_RUNNING) 1836 iwi_stop(ifp, 1); 1837 } 1838 break; 1839 1840 case SIOCADDMULTI: 1841 case SIOCDELMULTI: 1842 /* XXX no h/w multicast filter? --dyoung */ 1843 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1844 /* setup multicast filter, etc */ 1845 error = 0; 1846 } 1847 break; 1848 1849 case SIOCGTABLE0: 1850 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1851 break; 1852 1853 case SIOCGRADIO: 1854 val = !iwi_getrfkill(sc); 1855 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1856 break; 1857 1858 case SIOCSIFMEDIA: 1859 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1860 sc->sc_fwname = "ipw2200-ibss.fw"; 1861 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1862 sc->sc_fwname = "ipw2200-sniffer.fw"; 1863 } else { 1864 sc->sc_fwname = "ipw2200-bss.fw"; 1865 } 1866 error = iwi_cache_firmware(sc); 1867 if (error) 1868 break; 1869 /* FALLTRHOUGH */ 1870 1871 default: 1872 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1873 1874 if (error == ENETRESET) { 1875 if (IS_RUNNING(ifp) && 1876 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1877 iwi_init(ifp); 1878 error = 0; 1879 } 1880 } 1881 1882 splx(s); 1883 return error; 1884 #undef IS_RUNNING 1885 } 1886 1887 static void 1888 iwi_stop_master(struct iwi_softc *sc) 1889 { 1890 int ntries; 1891 1892 /* Disable interrupts */ 1893 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1894 1895 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1896 for (ntries = 0; ntries < 5; ntries++) { 1897 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1898 break; 1899 DELAY(10); 1900 } 1901 if (ntries == 5) 1902 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1903 1904 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1905 IWI_RST_PRINCETON_RESET); 1906 1907 sc->flags &= ~IWI_FLAG_FW_INITED; 1908 } 1909 1910 static int 1911 iwi_reset(struct iwi_softc *sc) 1912 { 1913 int i, ntries; 1914 1915 iwi_stop_master(sc); 1916 1917 /* Move adapter to D0 state */ 1918 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1919 IWI_CTL_INIT); 1920 1921 /* Initialize Phase-Locked Level (PLL) */ 1922 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1923 1924 /* Wait for clock stabilization */ 1925 for (ntries = 0; ntries < 1000; ntries++) { 1926 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1927 break; 1928 DELAY(200); 1929 } 1930 if (ntries == 1000) { 1931 aprint_error_dev(sc->sc_dev, 1932 "timeout waiting for clock stabilization\n"); 1933 return ETIMEDOUT; 1934 } 1935 1936 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1937 IWI_RST_SW_RESET); 1938 1939 DELAY(10); 1940 1941 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1942 IWI_CTL_INIT); 1943 1944 /* Clear NIC memory */ 1945 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1946 for (i = 0; i < 0xc000; i++) 1947 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1948 1949 return 0; 1950 } 1951 1952 static int 1953 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1954 { 1955 uint16_t *w; 1956 int ntries, i; 1957 1958 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1959 IWI_RST_STOP_MASTER); 1960 for (ntries = 0; ntries < 5; ntries++) { 1961 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1962 break; 1963 DELAY(10); 1964 } 1965 if (ntries == 5) { 1966 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1967 return ETIMEDOUT; 1968 } 1969 1970 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1971 DELAY(5000); 1972 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1973 ~IWI_RST_PRINCETON_RESET); 1974 DELAY(5000); 1975 MEM_WRITE_4(sc, 0x3000e0, 0); 1976 DELAY(1000); 1977 MEM_WRITE_4(sc, 0x300004, 1); 1978 DELAY(1000); 1979 MEM_WRITE_4(sc, 0x300004, 0); 1980 DELAY(1000); 1981 MEM_WRITE_1(sc, 0x200000, 0x00); 1982 MEM_WRITE_1(sc, 0x200000, 0x40); 1983 DELAY(1000); 1984 1985 /* Adapter is buggy, we must set the address for each word */ 1986 for (w = uc; size > 0; w++, size -= 2) 1987 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1988 1989 MEM_WRITE_1(sc, 0x200000, 0x00); 1990 MEM_WRITE_1(sc, 0x200000, 0x80); 1991 1992 /* Wait until we get a response in the uc queue */ 1993 for (ntries = 0; ntries < 100; ntries++) { 1994 if (MEM_READ_1(sc, 0x200000) & 1) 1995 break; 1996 DELAY(100); 1997 } 1998 if (ntries == 100) { 1999 aprint_error_dev(sc->sc_dev, 2000 "timeout waiting for ucode to initialize\n"); 2001 return ETIMEDOUT; 2002 } 2003 2004 /* Empty the uc queue or the firmware will not initialize properly */ 2005 for (i = 0; i < 7; i++) 2006 MEM_READ_4(sc, 0x200004); 2007 2008 MEM_WRITE_1(sc, 0x200000, 0x00); 2009 2010 return 0; 2011 } 2012 2013 /* macro to handle unaligned little endian data in firmware image */ 2014 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2015 static int 2016 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2017 { 2018 bus_dmamap_t map; 2019 u_char *p, *end; 2020 uint32_t sentinel, ctl, sum; 2021 uint32_t cs, sl, cd, cl; 2022 int ntries, nsegs, error; 2023 int sn; 2024 2025 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2026 2027 /* Create a DMA map for the firmware image */ 2028 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2029 BUS_DMA_NOWAIT, &map); 2030 if (error != 0) { 2031 aprint_error_dev(sc->sc_dev, 2032 "could not create firmware DMA map\n"); 2033 map = NULL; 2034 goto fail1; 2035 } 2036 2037 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2038 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2039 if (error != 0) { 2040 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2041 error); 2042 goto fail2; 2043 } 2044 2045 /* Make sure the adapter will get up-to-date values */ 2046 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2047 2048 /* Tell the adapter where the command blocks are stored */ 2049 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2050 2051 /* 2052 * Store command blocks into adapter's internal memory using register 2053 * indirections. The adapter will read the firmware image through DMA 2054 * using information stored in command blocks. 2055 */ 2056 p = fw; 2057 end = p + size; 2058 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2059 2060 sn = 0; 2061 sl = cl = 0; 2062 cs = cd = 0; 2063 while (p < end) { 2064 if (sl == 0) { 2065 cs = map->dm_segs[sn].ds_addr; 2066 sl = map->dm_segs[sn].ds_len; 2067 sn++; 2068 } 2069 if (cl == 0) { 2070 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2071 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2072 } 2073 while (sl > 0 && cl > 0) { 2074 int len = min(cl, sl); 2075 2076 sl -= len; 2077 cl -= len; 2078 p += len; 2079 2080 while (len > 0) { 2081 int mlen = min(len, IWI_CB_MAXDATALEN); 2082 2083 ctl = IWI_CB_DEFAULT_CTL | mlen; 2084 sum = ctl ^ cs ^ cd; 2085 2086 /* Write a command block */ 2087 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2088 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2089 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2090 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2091 2092 cs += mlen; 2093 cd += mlen; 2094 len -= mlen; 2095 } 2096 } 2097 } 2098 2099 /* Write a fictive final command block (sentinel) */ 2100 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2101 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2102 2103 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2104 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2105 2106 /* Tell the adapter to start processing command blocks */ 2107 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2108 2109 /* Wait until the adapter has processed all command blocks */ 2110 for (ntries = 0; ntries < 400; ntries++) { 2111 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2112 break; 2113 DELAY(100); 2114 } 2115 if (ntries == 400) { 2116 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2117 error = ETIMEDOUT; 2118 goto fail3; 2119 } 2120 2121 /* We're done with command blocks processing */ 2122 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2123 2124 /* Allow interrupts so we know when the firmware is inited */ 2125 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2126 2127 /* Tell the adapter to initialize the firmware */ 2128 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2129 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2130 IWI_CTL_ALLOW_STANDBY); 2131 2132 /* Wait at most one second for firmware initialization to complete */ 2133 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2134 aprint_error_dev(sc->sc_dev, 2135 "timeout waiting for firmware initialization to complete\n"); 2136 goto fail3; 2137 } 2138 2139 fail3: 2140 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2141 bus_dmamap_unload(sc->sc_dmat, map); 2142 fail2: 2143 if (map != NULL) 2144 bus_dmamap_destroy(sc->sc_dmat, map); 2145 2146 fail1: 2147 return error; 2148 } 2149 2150 /* 2151 * Store firmware into kernel memory so we can download it when we need to, 2152 * e.g when the adapter wakes up from suspend mode. 2153 */ 2154 static int 2155 iwi_cache_firmware(struct iwi_softc *sc) 2156 { 2157 struct iwi_firmware *kfw = &sc->fw; 2158 firmware_handle_t fwh; 2159 const struct iwi_firmware_hdr *hdr; 2160 off_t size; 2161 char *fw; 2162 int error; 2163 2164 if (iwi_accept_eula == 0) { 2165 aprint_error_dev(sc->sc_dev, 2166 "EULA not accepted; please see the iwi(4) man page.\n"); 2167 return EPERM; 2168 } 2169 2170 iwi_free_firmware(sc); 2171 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2172 if (error != 0) { 2173 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2174 goto fail1; 2175 } 2176 2177 size = firmware_get_size(fwh); 2178 if (size < sizeof(struct iwi_firmware_hdr)) { 2179 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2180 sc->sc_fwname); 2181 error = EIO; 2182 goto fail1; 2183 } 2184 2185 sc->sc_blob = firmware_malloc(size); 2186 if (sc->sc_blob == NULL) { 2187 error = ENOMEM; 2188 firmware_close(fwh); 2189 goto fail1; 2190 } 2191 2192 error = firmware_read(fwh, 0, sc->sc_blob, size); 2193 firmware_close(fwh); 2194 if (error != 0) 2195 goto fail2; 2196 2197 2198 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2199 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2200 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2201 sc->sc_fwname); 2202 error = EIO; 2203 goto fail2; 2204 } 2205 2206 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2207 DPRINTF(("firmware version = %d\n", le32toh(hdr->version))); 2208 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2209 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2210 aprint_error_dev(sc->sc_dev, 2211 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2212 IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2213 IWI_FW_GET_MINOR(le32toh(hdr->version)), 2214 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2215 error = EIO; 2216 goto fail2; 2217 } 2218 2219 kfw->boot_size = hdr->bsize; 2220 kfw->ucode_size = hdr->usize; 2221 kfw->main_size = hdr->fsize; 2222 2223 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2224 kfw->boot = fw; 2225 fw += kfw->boot_size; 2226 kfw->ucode = fw; 2227 fw += kfw->ucode_size; 2228 kfw->main = fw; 2229 2230 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2231 kfw->boot, kfw->ucode, kfw->main)); 2232 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2233 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2234 2235 sc->flags |= IWI_FLAG_FW_CACHED; 2236 2237 return 0; 2238 2239 2240 fail2: firmware_free(sc->sc_blob, 0); 2241 fail1: 2242 return error; 2243 } 2244 2245 static void 2246 iwi_free_firmware(struct iwi_softc *sc) 2247 { 2248 2249 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2250 return; 2251 2252 firmware_free(sc->sc_blob, 0); 2253 2254 sc->flags &= ~IWI_FLAG_FW_CACHED; 2255 } 2256 2257 static int 2258 iwi_config(struct iwi_softc *sc) 2259 { 2260 struct ieee80211com *ic = &sc->sc_ic; 2261 struct ifnet *ifp = &sc->sc_if; 2262 struct iwi_configuration config; 2263 struct iwi_rateset rs; 2264 struct iwi_txpower power; 2265 struct ieee80211_key *wk; 2266 struct iwi_wep_key wepkey; 2267 uint32_t data; 2268 int error, nchan, i; 2269 2270 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2271 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2272 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2273 IEEE80211_ADDR_LEN, 0); 2274 if (error != 0) 2275 return error; 2276 2277 memset(&config, 0, sizeof config); 2278 config.bluetooth_coexistence = sc->bluetooth; 2279 config.antenna = sc->antenna; 2280 config.silence_threshold = 0x1e; 2281 config.multicast_enabled = 1; 2282 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2283 config.disable_unicast_decryption = 1; 2284 config.disable_multicast_decryption = 1; 2285 DPRINTF(("Configuring adapter\n")); 2286 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2287 0); 2288 if (error != 0) 2289 return error; 2290 2291 data = htole32(IWI_POWER_MODE_CAM); 2292 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2293 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2294 if (error != 0) 2295 return error; 2296 2297 data = htole32(ic->ic_rtsthreshold); 2298 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2299 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2300 if (error != 0) 2301 return error; 2302 2303 data = htole32(ic->ic_fragthreshold); 2304 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2305 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2306 if (error != 0) 2307 return error; 2308 2309 /* 2310 * Set default Tx power for 802.11b/g and 802.11a channels. 2311 */ 2312 nchan = 0; 2313 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2314 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2315 continue; 2316 power.chan[nchan].chan = i; 2317 power.chan[nchan].power = IWI_TXPOWER_MAX; 2318 nchan++; 2319 } 2320 power.nchan = nchan; 2321 2322 power.mode = IWI_MODE_11G; 2323 DPRINTF(("Setting .11g channels tx power\n")); 2324 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2325 if (error != 0) 2326 return error; 2327 2328 power.mode = IWI_MODE_11B; 2329 DPRINTF(("Setting .11b channels tx power\n")); 2330 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2331 if (error != 0) 2332 return error; 2333 2334 nchan = 0; 2335 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2336 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2337 continue; 2338 power.chan[nchan].chan = i; 2339 power.chan[nchan].power = IWI_TXPOWER_MAX; 2340 nchan++; 2341 } 2342 power.nchan = nchan; 2343 2344 if (nchan > 0) { /* 2915ABG only */ 2345 power.mode = IWI_MODE_11A; 2346 DPRINTF(("Setting .11a channels tx power\n")); 2347 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2348 0); 2349 if (error != 0) 2350 return error; 2351 } 2352 2353 rs.mode = IWI_MODE_11G; 2354 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2355 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2356 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2357 rs.nrates); 2358 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2359 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2360 if (error != 0) 2361 return error; 2362 2363 rs.mode = IWI_MODE_11A; 2364 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2365 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2366 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2367 rs.nrates); 2368 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2369 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2370 if (error != 0) 2371 return error; 2372 2373 /* if we have a desired ESSID, set it now */ 2374 if (ic->ic_des_esslen != 0) { 2375 #ifdef IWI_DEBUG 2376 if (iwi_debug > 0) { 2377 printf("Setting desired ESSID to "); 2378 ieee80211_print_essid(ic->ic_des_essid, 2379 ic->ic_des_esslen); 2380 printf("\n"); 2381 } 2382 #endif 2383 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2384 ic->ic_des_esslen, 0); 2385 if (error != 0) 2386 return error; 2387 } 2388 2389 data = htole32(arc4random()); 2390 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2391 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2392 if (error != 0) 2393 return error; 2394 2395 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2396 /* XXX iwi_setwepkeys? */ 2397 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2398 wk = &ic->ic_crypto.cs_nw_keys[i]; 2399 2400 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2401 wepkey.idx = i; 2402 wepkey.len = wk->wk_keylen; 2403 memset(wepkey.key, 0, sizeof wepkey.key); 2404 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2405 DPRINTF(("Setting wep key index %u len %u\n", 2406 wepkey.idx, wepkey.len)); 2407 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2408 sizeof wepkey, 0); 2409 if (error != 0) 2410 return error; 2411 } 2412 } 2413 2414 /* Enable adapter */ 2415 DPRINTF(("Enabling adapter\n")); 2416 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2417 } 2418 2419 static int 2420 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2421 { 2422 struct ieee80211com *ic = &sc->sc_ic; 2423 struct iwi_scan_v2 scan; 2424 2425 (void)memset(&scan, 0, sizeof scan); 2426 2427 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2428 scan.channels[0] = 1 | 2429 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2430 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2431 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2432 2433 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2434 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2435 } 2436 2437 static int 2438 iwi_scan(struct iwi_softc *sc) 2439 { 2440 struct ieee80211com *ic = &sc->sc_ic; 2441 struct iwi_scan_v2 scan; 2442 uint32_t type; 2443 uint8_t *p; 2444 int i, count, idx; 2445 2446 (void)memset(&scan, 0, sizeof scan); 2447 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2448 htole16(sc->dwelltime); 2449 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2450 htole16(sc->dwelltime); 2451 2452 /* tell the firmware about the desired essid */ 2453 if (ic->ic_des_esslen) { 2454 int error; 2455 2456 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2457 __func__, ic->ic_des_essid)); 2458 2459 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2460 ic->ic_des_essid, ic->ic_des_esslen, 1); 2461 if (error) 2462 return error; 2463 2464 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2465 } else { 2466 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2467 } 2468 2469 p = &scan.channels[0]; 2470 count = idx = 0; 2471 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2472 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2473 isset(ic->ic_chan_active, i)) { 2474 *++p = i; 2475 count++; 2476 idx++; 2477 iwi_scan_type_set(scan, idx, type); 2478 } 2479 } 2480 if (count) { 2481 *(p - count) = IWI_CHAN_5GHZ | count; 2482 p++; 2483 } 2484 2485 count = 0; 2486 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2487 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2488 isset(ic->ic_chan_active, i)) { 2489 *++p = i; 2490 count++; 2491 idx++; 2492 iwi_scan_type_set(scan, idx, type); 2493 } 2494 } 2495 *(p - count) = IWI_CHAN_2GHZ | count; 2496 2497 DPRINTF(("Start scanning\n")); 2498 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2499 } 2500 2501 static int 2502 iwi_auth_and_assoc(struct iwi_softc *sc) 2503 { 2504 struct ieee80211com *ic = &sc->sc_ic; 2505 struct ieee80211_node *ni = ic->ic_bss; 2506 struct ifnet *ifp = &sc->sc_if; 2507 struct ieee80211_wme_info wme; 2508 struct iwi_configuration config; 2509 struct iwi_associate assoc; 2510 struct iwi_rateset rs; 2511 uint16_t capinfo; 2512 uint32_t data; 2513 int error; 2514 2515 memset(&config, 0, sizeof config); 2516 config.bluetooth_coexistence = sc->bluetooth; 2517 config.antenna = sc->antenna; 2518 config.multicast_enabled = 1; 2519 config.silence_threshold = 0x1e; 2520 if (ic->ic_curmode == IEEE80211_MODE_11G) 2521 config.use_protection = 1; 2522 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2523 config.disable_unicast_decryption = 1; 2524 config.disable_multicast_decryption = 1; 2525 2526 DPRINTF(("Configuring adapter\n")); 2527 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2528 sizeof config, 1); 2529 if (error != 0) 2530 return error; 2531 2532 #ifdef IWI_DEBUG 2533 if (iwi_debug > 0) { 2534 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2535 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2536 aprint_debug("\n"); 2537 } 2538 #endif 2539 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2540 if (error != 0) 2541 return error; 2542 2543 /* the rate set has already been "negotiated" */ 2544 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2545 IWI_MODE_11G; 2546 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2547 rs.nrates = ni->ni_rates.rs_nrates; 2548 2549 if (rs.nrates > IWI_RATESET_SIZE) { 2550 DPRINTF(("Truncating negotiated rate set from %u\n", 2551 rs.nrates)); 2552 rs.nrates = IWI_RATESET_SIZE; 2553 } 2554 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2555 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2556 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2557 if (error != 0) 2558 return error; 2559 2560 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2561 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2562 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2563 wme.wme_oui[0] = 0x00; 2564 wme.wme_oui[1] = 0x50; 2565 wme.wme_oui[2] = 0xf2; 2566 wme.wme_type = WME_OUI_TYPE; 2567 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2568 wme.wme_version = WME_VERSION; 2569 wme.wme_info = 0; 2570 2571 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2572 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2573 if (error != 0) 2574 return error; 2575 } 2576 2577 if (ic->ic_opt_ie != NULL) { 2578 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2579 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2580 ic->ic_opt_ie_len, 1); 2581 if (error != 0) 2582 return error; 2583 } 2584 data = htole32(ni->ni_rssi); 2585 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2586 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2587 if (error != 0) 2588 return error; 2589 2590 memset(&assoc, 0, sizeof assoc); 2591 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2592 assoc.mode = IWI_MODE_11A; 2593 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2594 assoc.mode = IWI_MODE_11G; 2595 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2596 assoc.mode = IWI_MODE_11B; 2597 2598 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2599 2600 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2601 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2602 2603 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2604 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2605 2606 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2607 assoc.policy |= htole16(IWI_POLICY_WME); 2608 if (ic->ic_flags & IEEE80211_F_WPA) 2609 assoc.policy |= htole16(IWI_POLICY_WPA); 2610 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2611 assoc.type = IWI_HC_IBSS_START; 2612 else 2613 assoc.type = IWI_HC_ASSOC; 2614 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2615 2616 if (ic->ic_opmode == IEEE80211_M_IBSS) 2617 capinfo = IEEE80211_CAPINFO_IBSS; 2618 else 2619 capinfo = IEEE80211_CAPINFO_ESS; 2620 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2621 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2622 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2623 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2624 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2625 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2626 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2627 assoc.capinfo = htole16(capinfo); 2628 2629 assoc.lintval = htole16(ic->ic_lintval); 2630 assoc.intval = htole16(ni->ni_intval); 2631 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2632 if (ic->ic_opmode == IEEE80211_M_IBSS) 2633 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2634 else 2635 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2636 2637 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2638 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2639 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2640 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2641 assoc.chan, le16toh(assoc.policy), assoc.auth, 2642 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2643 le16toh(assoc.intval))); 2644 2645 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2646 } 2647 2648 static int 2649 iwi_init(struct ifnet *ifp) 2650 { 2651 struct iwi_softc *sc = ifp->if_softc; 2652 struct ieee80211com *ic = &sc->sc_ic; 2653 struct iwi_firmware *fw = &sc->fw; 2654 int i, error; 2655 2656 /* exit immediately if firmware has not been ioctl'd */ 2657 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2658 if ((error = iwi_cache_firmware(sc)) != 0) { 2659 aprint_error_dev(sc->sc_dev, 2660 "could not cache the firmware\n"); 2661 goto fail; 2662 } 2663 } 2664 2665 iwi_stop(ifp, 0); 2666 2667 if ((error = iwi_reset(sc)) != 0) { 2668 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2669 goto fail; 2670 } 2671 2672 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2673 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2674 goto fail; 2675 } 2676 2677 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2678 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2679 goto fail; 2680 } 2681 2682 iwi_stop_master(sc); 2683 2684 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2685 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2686 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2687 2688 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2689 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2690 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2691 2692 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2693 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2694 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2695 2696 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2697 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2698 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2699 2700 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2701 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2702 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2703 2704 for (i = 0; i < sc->rxq.count; i++) 2705 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2706 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2707 2708 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2709 2710 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2711 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2712 goto fail; 2713 } 2714 2715 sc->flags |= IWI_FLAG_FW_INITED; 2716 2717 if ((error = iwi_config(sc)) != 0) { 2718 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2719 goto fail; 2720 } 2721 2722 ic->ic_state = IEEE80211_S_INIT; 2723 2724 ifp->if_flags &= ~IFF_OACTIVE; 2725 ifp->if_flags |= IFF_RUNNING; 2726 2727 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2728 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2729 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2730 } else 2731 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2732 2733 return 0; 2734 2735 fail: ifp->if_flags &= ~IFF_UP; 2736 iwi_stop(ifp, 0); 2737 2738 return error; 2739 } 2740 2741 2742 /* 2743 * Return whether or not the radio is enabled in hardware 2744 * (i.e. the rfkill switch is "off"). 2745 */ 2746 static int 2747 iwi_getrfkill(struct iwi_softc *sc) 2748 { 2749 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2750 } 2751 2752 static int 2753 iwi_sysctl_radio(SYSCTLFN_ARGS) 2754 { 2755 struct sysctlnode node; 2756 struct iwi_softc *sc; 2757 int val, error; 2758 2759 node = *rnode; 2760 sc = (struct iwi_softc *)node.sysctl_data; 2761 2762 val = !iwi_getrfkill(sc); 2763 2764 node.sysctl_data = &val; 2765 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2766 2767 if (error || newp == NULL) 2768 return error; 2769 2770 return 0; 2771 } 2772 2773 #ifdef IWI_DEBUG 2774 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2775 { 2776 int rc; 2777 const struct sysctlnode *rnode; 2778 const struct sysctlnode *cnode; 2779 2780 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2781 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2782 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2783 goto err; 2784 2785 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2786 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2787 SYSCTL_DESCR("iwi global controls"), 2788 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2789 goto err; 2790 2791 /* control debugging printfs */ 2792 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2793 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2794 "debug", SYSCTL_DESCR("Enable debugging output"), 2795 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2796 goto err; 2797 2798 return; 2799 err: 2800 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2801 } 2802 2803 #endif /* IWI_DEBUG */ 2804 2805 /* 2806 * Add sysctl knobs. 2807 */ 2808 static void 2809 iwi_sysctlattach(struct iwi_softc *sc) 2810 { 2811 int rc; 2812 const struct sysctlnode *rnode; 2813 const struct sysctlnode *cnode; 2814 2815 struct sysctllog **clog = &sc->sc_sysctllog; 2816 2817 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2818 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2819 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2820 goto err; 2821 2822 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2823 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2824 SYSCTL_DESCR("iwi controls and statistics"), 2825 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2826 goto err; 2827 2828 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2829 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2830 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2831 iwi_sysctl_radio, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2832 goto err; 2833 2834 sc->dwelltime = 100; 2835 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2836 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2837 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2838 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2839 goto err; 2840 2841 sc->bluetooth = 0; 2842 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2843 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2844 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2845 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2846 goto err; 2847 2848 sc->antenna = IWI_ANTENNA_AUTO; 2849 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2850 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2851 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2852 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2853 goto err; 2854 2855 return; 2856 err: 2857 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2858 } 2859 2860 static void 2861 iwi_stop(struct ifnet *ifp, int disable) 2862 { 2863 struct iwi_softc *sc = ifp->if_softc; 2864 struct ieee80211com *ic = &sc->sc_ic; 2865 2866 IWI_LED_OFF(sc); 2867 2868 iwi_stop_master(sc); 2869 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2870 2871 /* reset rings */ 2872 iwi_reset_cmd_ring(sc, &sc->cmdq); 2873 iwi_reset_tx_ring(sc, &sc->txq[0]); 2874 iwi_reset_tx_ring(sc, &sc->txq[1]); 2875 iwi_reset_tx_ring(sc, &sc->txq[2]); 2876 iwi_reset_tx_ring(sc, &sc->txq[3]); 2877 iwi_reset_rx_ring(sc, &sc->rxq); 2878 2879 ifp->if_timer = 0; 2880 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2881 2882 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2883 } 2884 2885 static void 2886 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2887 { 2888 uint32_t val; 2889 2890 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2891 2892 switch (sc->nictype) { 2893 case 1: 2894 /* special NIC type: reversed leds */ 2895 if (state == IWI_LED_ACTIVITY) { 2896 state &= ~IWI_LED_ACTIVITY; 2897 state |= IWI_LED_ASSOCIATED; 2898 } else if (state == IWI_LED_ASSOCIATED) { 2899 state &= ~IWI_LED_ASSOCIATED; 2900 state |= IWI_LED_ACTIVITY; 2901 } 2902 /* and ignore toggle effect */ 2903 val |= state; 2904 break; 2905 case 0: 2906 case 2: 2907 case 3: 2908 case 4: 2909 val = (toggle && (val & state)) ? val & ~state : val | state; 2910 break; 2911 default: 2912 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2913 sc->nictype); 2914 return; 2915 break; 2916 } 2917 2918 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2919 2920 return; 2921 } 2922 2923 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2924 { 2925 const struct sysctlnode *rnode; 2926 const struct sysctlnode *cnode; 2927 2928 sysctl_createv(NULL, 0, NULL, &rnode, 2929 CTLFLAG_PERMANENT, 2930 CTLTYPE_NODE, "hw", 2931 NULL, 2932 NULL, 0, 2933 NULL, 0, 2934 CTL_HW, CTL_EOL); 2935 2936 sysctl_createv(NULL, 0, &rnode, &rnode, 2937 CTLFLAG_PERMANENT, 2938 CTLTYPE_NODE, "iwi", 2939 NULL, 2940 NULL, 0, 2941 NULL, 0, 2942 CTL_CREATE, CTL_EOL); 2943 2944 sysctl_createv(NULL, 0, &rnode, &cnode, 2945 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2946 CTLTYPE_INT, "accept_eula", 2947 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2948 NULL, 0, 2949 &iwi_accept_eula, sizeof(iwi_accept_eula), 2950 CTL_CREATE, CTL_EOL); 2951 } 2952