1 /* $NetBSD: if_iwi.c,v 1.121 2024/07/05 04:31:51 rin 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 (at) 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 1.121 2024/07/05 04:31:51 rin Exp $"); 23 24 /*- 25 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 26 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 27 */ 28 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/sysctl.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/conf.h> 39 #include <sys/kauth.h> 40 #include <sys/proc.h> 41 #include <sys/cprng.h> 42 43 #include <sys/bus.h> 44 #include <machine/endian.h> 45 #include <sys/intr.h> 46 47 #include <dev/firmload.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 #include <net/bpf.h> 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/if_dl.h> 57 #include <net/if_ether.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_radiotap.h> 63 64 #include <netinet/in.h> 65 #include <netinet/in_systm.h> 66 #include <netinet/in_var.h> 67 #include <netinet/ip.h> 68 69 #include <dev/pci/if_iwireg.h> 70 #include <dev/pci/if_iwivar.h> 71 72 #ifdef IWI_DEBUG 73 #define DPRINTF(x) if (iwi_debug > 0) printf x 74 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 75 int iwi_debug = 4; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n, x) 79 #endif 80 81 /* Permit loading the Intel firmware */ 82 static int iwi_accept_eula; 83 84 static int iwi_match(device_t, cfdata_t, void *); 85 static void iwi_attach(device_t, device_t, void *); 86 static int iwi_detach(device_t, int); 87 88 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 89 int); 90 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 91 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 92 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 93 int, bus_size_t, bus_size_t); 94 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 95 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 96 static struct mbuf * 97 iwi_alloc_rx_buf(struct iwi_softc *sc); 98 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 99 int); 100 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 101 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 102 103 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 104 static void iwi_node_free(struct ieee80211_node *); 105 106 static int iwi_cvtrate(int); 107 static int iwi_media_change(struct ifnet *); 108 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 109 static int iwi_wme_update(struct ieee80211com *); 110 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 111 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 112 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 113 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 114 struct iwi_frame *); 115 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 116 static void iwi_cmd_intr(struct iwi_softc *); 117 static void iwi_rx_intr(struct iwi_softc *); 118 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 119 static int iwi_intr(void *); 120 static void iwi_softintr(void *); 121 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 122 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 123 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 124 int); 125 static void iwi_start(struct ifnet *); 126 static void iwi_watchdog(struct ifnet *); 127 128 static int iwi_alloc_unr(struct iwi_softc *); 129 static void iwi_free_unr(struct iwi_softc *, int); 130 131 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 132 133 static int iwi_ioctl(struct ifnet *, u_long, void *); 134 static void iwi_stop_master(struct iwi_softc *); 135 static int iwi_reset(struct iwi_softc *); 136 static int iwi_load_ucode(struct iwi_softc *, void *, int); 137 static int iwi_load_firmware(struct iwi_softc *, void *, int); 138 static int iwi_cache_firmware(struct iwi_softc *); 139 static void iwi_free_firmware(struct iwi_softc *); 140 static int iwi_config(struct iwi_softc *); 141 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 142 static int iwi_scan(struct iwi_softc *); 143 static int iwi_auth_and_assoc(struct iwi_softc *); 144 static int iwi_init(struct ifnet *); 145 static void iwi_stop(struct ifnet *, int); 146 static int iwi_getrfkill(struct iwi_softc *); 147 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 148 static void iwi_sysctlattach(struct iwi_softc *); 149 150 static inline uint8_t 151 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 152 { 153 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 154 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 155 } 156 157 static inline uint32_t 158 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 159 { 160 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 161 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 162 } 163 164 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 165 iwi_detach, NULL); 166 167 static const struct device_compatible_entry compat_data[] = { 168 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 169 PCI_PRODUCT_INTEL_PRO_WL_2200BG), }, 170 171 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 172 PCI_PRODUCT_INTEL_PRO_WL_2225BG), }, 173 174 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 175 PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1), }, 176 177 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 178 PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2), }, 179 180 181 PCI_COMPAT_EOL 182 }; 183 184 static int 185 iwi_match(device_t parent, cfdata_t match, void *aux) 186 { 187 struct pci_attach_args *pa = aux; 188 189 return pci_compatible_match(pa, compat_data); 190 } 191 192 /* Base Address Register */ 193 #define IWI_PCI_BAR0 0x10 194 195 static void 196 iwi_attach(device_t parent, device_t self, void *aux) 197 { 198 struct iwi_softc *sc = device_private(self); 199 struct ieee80211com *ic = &sc->sc_ic; 200 struct ifnet *ifp = &sc->sc_if; 201 struct pci_attach_args *pa = aux; 202 const char *intrstr; 203 bus_space_tag_t memt; 204 bus_space_handle_t memh; 205 pci_intr_handle_t ih; 206 pcireg_t data; 207 uint16_t val; 208 int error, i; 209 char intrbuf[PCI_INTRSTR_LEN]; 210 211 sc->sc_dev = self; 212 sc->sc_pct = pa->pa_pc; 213 sc->sc_pcitag = pa->pa_tag; 214 215 pci_aprint_devinfo(pa, NULL); 216 217 /* clear unit numbers allocated to IBSS */ 218 sc->sc_unr = 0; 219 220 /* power up chip */ 221 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 222 NULL)) && error != EOPNOTSUPP) { 223 aprint_error_dev(self, "cannot activate %d\n", error); 224 return; 225 } 226 227 /* clear device specific PCI configuration register 0x41 */ 228 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 229 data &= ~0x0000ff00; 230 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 231 232 233 /* enable bus-mastering */ 234 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 235 data |= PCI_COMMAND_MASTER_ENABLE; 236 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 237 238 /* map the register window */ 239 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 240 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 241 if (error != 0) { 242 aprint_error_dev(self, "could not map memory space\n"); 243 return; 244 } 245 246 sc->sc_st = memt; 247 sc->sc_sh = memh; 248 sc->sc_dmat = pa->pa_dmat; 249 250 /* disable interrupts */ 251 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 252 253 sc->sc_soft_ih = softint_establish(SOFTINT_NET, iwi_softintr, sc); 254 if (sc->sc_soft_ih == NULL) { 255 aprint_error_dev(self, "could not establish softint\n"); 256 return; 257 } 258 259 if (pci_intr_map(pa, &ih) != 0) { 260 softint_disestablish(sc->sc_soft_ih); 261 sc->sc_soft_ih = NULL; 262 aprint_error_dev(self, "could not map interrupt\n"); 263 return; 264 } 265 266 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 267 sc->sc_ih = pci_intr_establish_xname(sc->sc_pct, ih, IPL_NET, iwi_intr, 268 sc, device_xname(self)); 269 if (sc->sc_ih == NULL) { 270 softint_disestablish(sc->sc_soft_ih); 271 sc->sc_soft_ih = NULL; 272 aprint_error_dev(self, "could not establish interrupt"); 273 if (intrstr != NULL) 274 aprint_error(" at %s", intrstr); 275 aprint_error("\n"); 276 return; 277 } 278 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 279 280 if (iwi_reset(sc) != 0) { 281 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 282 softint_disestablish(sc->sc_soft_ih); 283 sc->sc_soft_ih = NULL; 284 aprint_error_dev(self, "could not reset adapter\n"); 285 return; 286 } 287 288 ic->ic_ifp = ifp; 289 ic->ic_wme.wme_update = iwi_wme_update; 290 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 291 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 292 ic->ic_state = IEEE80211_S_INIT; 293 294 sc->sc_fwname = "ipw2200-bss.fw"; 295 296 /* set device capabilities */ 297 ic->ic_caps = 298 IEEE80211_C_IBSS | /* IBSS mode supported */ 299 IEEE80211_C_MONITOR | /* monitor mode supported */ 300 IEEE80211_C_TXPMGT | /* tx power management */ 301 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 302 IEEE80211_C_SHSLOT | /* short slot time supported */ 303 IEEE80211_C_WPA | /* 802.11i */ 304 IEEE80211_C_WME; /* 802.11e */ 305 306 /* read MAC address from EEPROM */ 307 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 308 ic->ic_myaddr[0] = val & 0xff; 309 ic->ic_myaddr[1] = val >> 8; 310 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 311 ic->ic_myaddr[2] = val & 0xff; 312 ic->ic_myaddr[3] = val >> 8; 313 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 314 ic->ic_myaddr[4] = val & 0xff; 315 ic->ic_myaddr[5] = val >> 8; 316 317 aprint_verbose_dev(self, "802.11 address %s\n", 318 ether_sprintf(ic->ic_myaddr)); 319 320 /* read the NIC type from EEPROM */ 321 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 322 sc->nictype = val & 0xff; 323 324 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 325 326 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 327 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 328 /* set supported .11a rates (2915ABG only) */ 329 ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; 330 331 /* set supported .11a channels */ 332 for (i = 36; i <= 64; i += 4) { 333 ic->ic_channels[i].ic_freq = 334 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 335 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 336 } 337 for (i = 149; i <= 165; i += 4) { 338 ic->ic_channels[i].ic_freq = 339 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 340 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 341 } 342 } 343 344 /* set supported .11b and .11g rates */ 345 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 346 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 347 348 /* set supported .11b and .11g channels (1 through 14) */ 349 for (i = 1; i <= 14; i++) { 350 ic->ic_channels[i].ic_freq = 351 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 352 ic->ic_channels[i].ic_flags = 353 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 354 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 355 } 356 357 ifp->if_softc = sc; 358 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 359 ifp->if_init = iwi_init; 360 ifp->if_stop = iwi_stop; 361 ifp->if_ioctl = iwi_ioctl; 362 ifp->if_start = iwi_start; 363 ifp->if_watchdog = iwi_watchdog; 364 IFQ_SET_READY(&ifp->if_snd); 365 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 366 367 if_initialize(ifp); 368 ieee80211_ifattach(ic); 369 /* Use common softint-based if_input */ 370 ifp->if_percpuq = if_percpuq_create(ifp); 371 if_register(ifp); 372 373 /* override default methods */ 374 ic->ic_node_alloc = iwi_node_alloc; 375 sc->sc_node_free = ic->ic_node_free; 376 ic->ic_node_free = iwi_node_free; 377 /* override state transition machine */ 378 sc->sc_newstate = ic->ic_newstate; 379 ic->ic_newstate = iwi_newstate; 380 381 /* XXX media locking needs revisiting */ 382 mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 383 ieee80211_media_init_with_lock(ic, 384 iwi_media_change, iwi_media_status, &sc->sc_media_mtx); 385 386 /* 387 * Allocate rings. 388 */ 389 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 390 aprint_error_dev(self, "could not allocate command ring\n"); 391 goto fail; 392 } 393 394 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 395 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 396 if (error != 0) { 397 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 398 goto fail; 399 } 400 401 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 402 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 403 if (error != 0) { 404 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 405 goto fail; 406 } 407 408 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 409 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 410 if (error != 0) { 411 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 412 goto fail; 413 } 414 415 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 416 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 417 if (error != 0) { 418 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 419 goto fail; 420 } 421 422 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 423 aprint_error_dev(self, "could not allocate Rx ring\n"); 424 goto fail; 425 } 426 427 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 428 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 429 430 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 431 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 432 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 433 434 sc->sc_txtap_len = sizeof sc->sc_txtapu; 435 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 436 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 437 438 iwi_sysctlattach(sc); 439 440 if (pmf_device_register(self, NULL, NULL)) 441 pmf_class_network_register(self, ifp); 442 else 443 aprint_error_dev(self, "couldn't establish power handler\n"); 444 445 ieee80211_announce(ic); 446 447 return; 448 449 fail: iwi_detach(self, 0); 450 } 451 452 static int 453 iwi_detach(device_t self, int flags) 454 { 455 struct iwi_softc *sc = device_private(self); 456 struct ifnet *ifp = &sc->sc_if; 457 458 if (ifp->if_softc != NULL) { 459 pmf_device_deregister(self); 460 iwi_stop(ifp, 1); 461 iwi_free_firmware(sc); 462 ieee80211_ifdetach(&sc->sc_ic); 463 if_detach(ifp); 464 } 465 466 iwi_free_cmd_ring(sc, &sc->cmdq); 467 iwi_free_tx_ring(sc, &sc->txq[0]); 468 iwi_free_tx_ring(sc, &sc->txq[1]); 469 iwi_free_tx_ring(sc, &sc->txq[2]); 470 iwi_free_tx_ring(sc, &sc->txq[3]); 471 iwi_free_rx_ring(sc, &sc->rxq); 472 473 if (sc->sc_ih != NULL) { 474 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 475 sc->sc_ih = NULL; 476 } 477 478 if (sc->sc_soft_ih != NULL) { 479 softint_disestablish(sc->sc_soft_ih); 480 sc->sc_soft_ih = NULL; 481 } 482 483 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 484 485 return 0; 486 } 487 488 static int 489 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 490 int count) 491 { 492 int error, nsegs; 493 494 ring->count = count; 495 ring->queued = 0; 496 ring->cur = ring->next = 0; 497 498 /* 499 * Allocate and map command ring 500 */ 501 error = bus_dmamap_create(sc->sc_dmat, 502 IWI_CMD_DESC_SIZE * count, 1, 503 IWI_CMD_DESC_SIZE * count, 0, 504 BUS_DMA_NOWAIT, &ring->desc_map); 505 if (error != 0) { 506 aprint_error_dev(sc->sc_dev, 507 "could not create command ring DMA map\n"); 508 ring->desc_map = NULL; 509 goto fail; 510 } 511 512 error = bus_dmamem_alloc(sc->sc_dmat, 513 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 514 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 515 if (error != 0) { 516 aprint_error_dev(sc->sc_dev, 517 "could not allocate command ring DMA memory\n"); 518 goto fail; 519 } 520 521 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 522 IWI_CMD_DESC_SIZE * count, 523 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 524 if (error != 0) { 525 aprint_error_dev(sc->sc_dev, 526 "could not map command ring DMA memory\n"); 527 goto fail; 528 } 529 530 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 531 IWI_CMD_DESC_SIZE * count, NULL, 532 BUS_DMA_NOWAIT); 533 if (error != 0) { 534 aprint_error_dev(sc->sc_dev, 535 "could not load command ring DMA map\n"); 536 goto fail; 537 } 538 539 memset(sc->cmdq.desc, 0, 540 IWI_CMD_DESC_SIZE * count); 541 542 return 0; 543 544 fail: return error; 545 } 546 547 static void 548 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 549 { 550 int i; 551 552 for (i = ring->next; i != ring->cur;) { 553 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 554 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 555 BUS_DMASYNC_POSTWRITE); 556 557 wakeup(&ring->desc[i]); 558 i = (i + 1) % ring->count; 559 } 560 561 ring->queued = 0; 562 ring->cur = ring->next = 0; 563 } 564 565 static void 566 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 567 { 568 if (ring->desc_map != NULL) { 569 if (ring->desc != NULL) { 570 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 571 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 572 IWI_CMD_DESC_SIZE * ring->count); 573 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 574 } 575 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 576 } 577 } 578 579 static int 580 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 581 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 582 { 583 int i, error, nsegs; 584 585 ring->count = 0; 586 ring->queued = 0; 587 ring->cur = ring->next = 0; 588 ring->csr_ridx = csr_ridx; 589 ring->csr_widx = csr_widx; 590 591 /* 592 * Allocate and map Tx ring 593 */ 594 error = bus_dmamap_create(sc->sc_dmat, 595 IWI_TX_DESC_SIZE * count, 1, 596 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 597 &ring->desc_map); 598 if (error != 0) { 599 aprint_error_dev(sc->sc_dev, 600 "could not create tx ring DMA map\n"); 601 ring->desc_map = NULL; 602 goto fail; 603 } 604 605 error = bus_dmamem_alloc(sc->sc_dmat, 606 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 607 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 608 if (error != 0) { 609 aprint_error_dev(sc->sc_dev, 610 "could not allocate tx ring DMA memory\n"); 611 goto fail; 612 } 613 614 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 615 IWI_TX_DESC_SIZE * count, 616 (void **)&ring->desc, BUS_DMA_NOWAIT); 617 if (error != 0) { 618 aprint_error_dev(sc->sc_dev, 619 "could not map tx ring DMA memory\n"); 620 goto fail; 621 } 622 623 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 624 IWI_TX_DESC_SIZE * count, NULL, 625 BUS_DMA_NOWAIT); 626 if (error != 0) { 627 aprint_error_dev(sc->sc_dev, 628 "could not load tx ring DMA map\n"); 629 goto fail; 630 } 631 632 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 633 634 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 635 M_WAITOK | M_ZERO); 636 ring->count = count; 637 638 /* 639 * Allocate Tx buffers DMA maps 640 */ 641 for (i = 0; i < count; i++) { 642 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 643 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 644 if (error != 0) { 645 aprint_error_dev(sc->sc_dev, 646 "could not create tx buf DMA map"); 647 ring->data[i].map = NULL; 648 goto fail; 649 } 650 } 651 return 0; 652 653 fail: return error; 654 } 655 656 static void 657 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 658 { 659 struct iwi_tx_data *data; 660 int i; 661 662 for (i = 0; i < ring->count; i++) { 663 data = &ring->data[i]; 664 665 if (data->map != NULL) { 666 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 667 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 668 bus_dmamap_unload(sc->sc_dmat, data->map); 669 } 670 671 m_freem(data->m); 672 data->m = NULL; 673 674 if (data->ni != NULL) { 675 ieee80211_free_node(data->ni); 676 data->ni = NULL; 677 } 678 } 679 680 ring->queued = 0; 681 ring->cur = ring->next = 0; 682 } 683 684 static void 685 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 686 { 687 int i; 688 struct iwi_tx_data *data; 689 690 if (ring->desc_map != NULL) { 691 if (ring->desc != NULL) { 692 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 693 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 694 IWI_TX_DESC_SIZE * ring->count); 695 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 696 } 697 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 698 } 699 700 for (i = 0; i < ring->count; i++) { 701 data = &ring->data[i]; 702 703 if (data->map != NULL) { 704 bus_dmamap_unload(sc->sc_dmat, data->map); 705 bus_dmamap_destroy(sc->sc_dmat, data->map); 706 } 707 708 m_freem(data->m); 709 } 710 } 711 712 static int 713 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 714 { 715 int i, error; 716 717 ring->count = 0; 718 ring->cur = 0; 719 720 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 721 M_WAITOK | M_ZERO); 722 ring->count = count; 723 724 /* 725 * Allocate and map Rx buffers 726 */ 727 for (i = 0; i < count; i++) { 728 729 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 730 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 731 if (error != 0) { 732 aprint_error_dev(sc->sc_dev, 733 "could not create rx buf DMA map"); 734 ring->data[i].map = NULL; 735 goto fail; 736 } 737 738 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 739 error = ENOMEM; 740 goto fail; 741 } 742 743 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 744 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 745 if (error != 0) { 746 aprint_error_dev(sc->sc_dev, 747 "could not load rx buffer DMA map\n"); 748 goto fail; 749 } 750 751 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 752 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 753 } 754 755 return 0; 756 757 fail: return error; 758 } 759 760 static void 761 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 762 { 763 ring->cur = 0; 764 } 765 766 static void 767 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 768 { 769 int i; 770 struct iwi_rx_data *data; 771 772 for (i = 0; i < ring->count; i++) { 773 data = &ring->data[i]; 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 m_freem(data->m); 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 ic->ic_state == IEEE80211_S_SCAN) 938 iwi_auth_and_assoc(sc); 939 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 940 iwi_set_chan(sc, ic->ic_ibss_chan); 941 break; 942 case IEEE80211_S_ASSOC: 943 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 944 if (ic->ic_state == IEEE80211_S_AUTH) 945 break; 946 iwi_auth_and_assoc(sc); 947 break; 948 949 case IEEE80211_S_INIT: 950 sc->flags &= ~IWI_FLAG_SCANNING; 951 break; 952 } 953 954 return sc->sc_newstate(ic, nstate, arg); 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 + 2 < 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 1114 frm += frm[1] + 2; 1115 } 1116 } 1117 1118 static struct mbuf * 1119 iwi_alloc_rx_buf(struct iwi_softc *sc) 1120 { 1121 struct mbuf *m; 1122 1123 MGETHDR(m, M_DONTWAIT, MT_DATA); 1124 if (m == NULL) { 1125 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1126 return NULL; 1127 } 1128 1129 MCLGET(m, M_DONTWAIT); 1130 if (!(m->m_flags & M_EXT)) { 1131 aprint_error_dev(sc->sc_dev, 1132 "could not allocate rx mbuf cluster\n"); 1133 m_freem(m); 1134 return NULL; 1135 } 1136 1137 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1138 return m; 1139 } 1140 1141 static void 1142 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1143 struct iwi_frame *frame) 1144 { 1145 struct ieee80211com *ic = &sc->sc_ic; 1146 struct ifnet *ifp = ic->ic_ifp; 1147 struct mbuf *m, *m_new; 1148 struct ieee80211_frame *wh; 1149 struct ieee80211_node *ni; 1150 int error, s; 1151 1152 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1153 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1154 1155 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1156 le16toh(frame->len) > MCLBYTES) { 1157 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1158 if_statinc(ifp, if_ierrors); 1159 return; 1160 } 1161 1162 /* 1163 * Try to allocate a new mbuf for this ring element and 1164 * load it before processing the current mbuf. If the ring 1165 * element cannot be reloaded, drop the received packet 1166 * and reuse the old mbuf. In the unlikely case that 1167 * the old mbuf can't be reloaded either, explicitly panic. 1168 * 1169 * XXX Reorganize buffer by moving elements from the logical 1170 * end of the ring to the front instead of dropping. 1171 */ 1172 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1173 if_statinc(ifp, if_ierrors); 1174 return; 1175 } 1176 1177 bus_dmamap_unload(sc->sc_dmat, data->map); 1178 1179 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1180 BUS_DMA_READ | BUS_DMA_NOWAIT); 1181 if (error != 0) { 1182 aprint_error_dev(sc->sc_dev, 1183 "could not load rx buf DMA map\n"); 1184 m_freem(m_new); 1185 if_statinc(ifp, if_ierrors); 1186 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1187 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1188 if (error) 1189 panic("%s: unable to remap rx buf", 1190 device_xname(sc->sc_dev)); 1191 return; 1192 } 1193 1194 /* 1195 * New mbuf successfully loaded, update RX ring and continue 1196 * processing. 1197 */ 1198 m = data->m; 1199 data->m = m_new; 1200 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1201 1202 /* Finalize mbuf */ 1203 m_set_rcvif(m, ifp); 1204 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1205 sizeof (struct iwi_frame) + le16toh(frame->len); 1206 1207 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1208 1209 s = splnet(); 1210 1211 if (ic->ic_state == IEEE80211_S_SCAN) 1212 iwi_fix_channel(ic, m); 1213 1214 if (sc->sc_drvbpf != NULL) { 1215 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1216 1217 tap->wr_flags = 0; 1218 tap->wr_rate = iwi_cvtrate(frame->rate); 1219 tap->wr_chan_freq = 1220 htole16(ic->ic_channels[frame->chan].ic_freq); 1221 tap->wr_chan_flags = 1222 htole16(ic->ic_channels[frame->chan].ic_flags); 1223 tap->wr_antsignal = frame->signal; 1224 tap->wr_antenna = frame->antenna; 1225 1226 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1227 } 1228 wh = mtod(m, struct ieee80211_frame *); 1229 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1230 1231 /* Send the frame to the upper layer */ 1232 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1233 1234 /* node is no longer needed */ 1235 ieee80211_free_node(ni); 1236 1237 splx(s); 1238 } 1239 1240 static void 1241 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1242 { 1243 struct ieee80211com *ic = &sc->sc_ic; 1244 struct iwi_notif_authentication *auth; 1245 struct iwi_notif_association *assoc; 1246 struct iwi_notif_beacon_state *beacon; 1247 int s; 1248 1249 switch (notif->type) { 1250 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1251 #ifdef IWI_DEBUG 1252 { 1253 struct iwi_notif_scan_channel *chan = 1254 (struct iwi_notif_scan_channel *)(notif + 1); 1255 1256 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1257 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1258 } 1259 #endif 1260 break; 1261 1262 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1263 #ifdef IWI_DEBUG 1264 { 1265 struct iwi_notif_scan_complete *scan = 1266 (struct iwi_notif_scan_complete *)(notif + 1); 1267 1268 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1269 scan->status)); 1270 } 1271 #endif 1272 1273 /* monitor mode uses scan to set the channel ... */ 1274 s = splnet(); 1275 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1276 sc->flags &= ~IWI_FLAG_SCANNING; 1277 ieee80211_end_scan(ic); 1278 } else 1279 iwi_set_chan(sc, ic->ic_ibss_chan); 1280 splx(s); 1281 break; 1282 1283 case IWI_NOTIF_TYPE_AUTHENTICATION: 1284 auth = (struct iwi_notif_authentication *)(notif + 1); 1285 1286 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1287 1288 switch (auth->state) { 1289 case IWI_AUTH_SUCCESS: 1290 s = splnet(); 1291 ieee80211_node_authorize(ic->ic_bss); 1292 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1293 splx(s); 1294 break; 1295 1296 case IWI_AUTH_FAIL: 1297 break; 1298 1299 case IWI_AUTH_SENT_1: 1300 case IWI_AUTH_RECV_2: 1301 case IWI_AUTH_SEQ1_PASS: 1302 break; 1303 1304 case IWI_AUTH_SEQ1_FAIL: 1305 break; 1306 1307 default: 1308 aprint_error_dev(sc->sc_dev, 1309 "unknown authentication state %u\n", auth->state); 1310 } 1311 break; 1312 1313 case IWI_NOTIF_TYPE_ASSOCIATION: 1314 assoc = (struct iwi_notif_association *)(notif + 1); 1315 1316 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1317 assoc->status)); 1318 1319 switch (assoc->state) { 1320 case IWI_AUTH_SUCCESS: 1321 /* re-association, do nothing */ 1322 break; 1323 1324 case IWI_ASSOC_SUCCESS: 1325 s = splnet(); 1326 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1327 splx(s); 1328 break; 1329 1330 case IWI_ASSOC_FAIL: 1331 s = splnet(); 1332 ieee80211_begin_scan(ic, 1); 1333 splx(s); 1334 break; 1335 1336 default: 1337 aprint_error_dev(sc->sc_dev, 1338 "unknown association state %u\n", assoc->state); 1339 } 1340 break; 1341 1342 case IWI_NOTIF_TYPE_BEACON: 1343 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1344 1345 if (beacon->state == IWI_BEACON_MISS) { 1346 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1347 device_xname(sc->sc_dev), le32toh(beacon->number))); 1348 } 1349 break; 1350 1351 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1352 case IWI_NOTIF_TYPE_LINK_QUALITY: 1353 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1354 case IWI_NOTIF_TYPE_CALIBRATION: 1355 case IWI_NOTIF_TYPE_NOISE: 1356 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1357 break; 1358 1359 default: 1360 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1361 device_xname(sc->sc_dev), notif->type, notif->flags, 1362 le16toh(notif->len))); 1363 } 1364 } 1365 1366 static void 1367 iwi_cmd_intr(struct iwi_softc *sc) 1368 { 1369 1370 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1371 1372 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1373 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1374 BUS_DMASYNC_POSTWRITE); 1375 1376 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1377 1378 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1379 1380 if (--sc->cmdq.queued > 0) { 1381 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1382 (sc->cmdq.next + 1) % sc->cmdq.count); 1383 } 1384 } 1385 1386 static void 1387 iwi_rx_intr(struct iwi_softc *sc) 1388 { 1389 struct iwi_rx_data *data; 1390 struct iwi_hdr *hdr; 1391 uint32_t hw; 1392 1393 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1394 1395 for (; sc->rxq.cur != hw;) { 1396 data = &sc->rxq.data[sc->rxq.cur]; 1397 1398 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1399 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1400 1401 hdr = mtod(data->m, struct iwi_hdr *); 1402 1403 switch (hdr->type) { 1404 case IWI_HDR_TYPE_FRAME: 1405 iwi_frame_intr(sc, data, sc->rxq.cur, 1406 (struct iwi_frame *)(hdr + 1)); 1407 break; 1408 1409 case IWI_HDR_TYPE_NOTIF: 1410 iwi_notification_intr(sc, 1411 (struct iwi_notif *)(hdr + 1)); 1412 break; 1413 1414 default: 1415 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1416 hdr->type); 1417 } 1418 1419 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1420 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1421 1422 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1423 1424 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1425 } 1426 1427 /* Tell the firmware what we have processed */ 1428 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1429 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1430 } 1431 1432 static void 1433 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1434 { 1435 struct ifnet *ifp = &sc->sc_if; 1436 struct iwi_tx_data *data; 1437 uint32_t hw; 1438 int s; 1439 1440 s = splnet(); 1441 1442 hw = CSR_READ_4(sc, txq->csr_ridx); 1443 1444 for (; txq->next != hw;) { 1445 data = &txq->data[txq->next]; 1446 1447 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1448 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1449 bus_dmamap_unload(sc->sc_dmat, data->map); 1450 m_freem(data->m); 1451 data->m = NULL; 1452 ieee80211_free_node(data->ni); 1453 data->ni = NULL; 1454 1455 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1456 1457 if_statinc(ifp, if_opackets); 1458 1459 txq->queued--; 1460 txq->next = (txq->next + 1) % txq->count; 1461 } 1462 1463 sc->sc_tx_timer = 0; 1464 1465 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1466 ifp->if_flags &= ~IFF_OACTIVE; 1467 1468 /* Call start() since some buffer descriptors have been released */ 1469 iwi_start(ifp); /* in softint */ 1470 } 1471 1472 splx(s); 1473 } 1474 1475 static int 1476 iwi_intr(void *arg) 1477 { 1478 struct iwi_softc *sc = arg; 1479 uint32_t r; 1480 1481 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1482 return 0; 1483 1484 /* Disable interrupts */ 1485 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1486 1487 softint_schedule(sc->sc_soft_ih); 1488 return 1; 1489 } 1490 1491 static void 1492 iwi_softintr(void *arg) 1493 { 1494 struct iwi_softc *sc = arg; 1495 uint32_t r; 1496 int s; 1497 1498 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1499 goto out; 1500 1501 /* Acknowledge interrupts */ 1502 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1503 1504 if (r & IWI_INTR_FATAL_ERROR) { 1505 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1506 s = splnet(); 1507 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1508 iwi_stop(&sc->sc_if, 1); 1509 splx(s); 1510 return; 1511 } 1512 1513 if (r & IWI_INTR_FW_INITED) { 1514 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1515 wakeup(sc); 1516 } 1517 1518 if (r & IWI_INTR_RADIO_OFF) { 1519 DPRINTF(("radio transmitter off\n")); 1520 s = splnet(); 1521 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1522 iwi_stop(&sc->sc_if, 1); 1523 splx(s); 1524 return; 1525 } 1526 1527 if (r & IWI_INTR_CMD_DONE) 1528 iwi_cmd_intr(sc); 1529 1530 if (r & IWI_INTR_TX1_DONE) 1531 iwi_tx_intr(sc, &sc->txq[0]); 1532 1533 if (r & IWI_INTR_TX2_DONE) 1534 iwi_tx_intr(sc, &sc->txq[1]); 1535 1536 if (r & IWI_INTR_TX3_DONE) 1537 iwi_tx_intr(sc, &sc->txq[2]); 1538 1539 if (r & IWI_INTR_TX4_DONE) 1540 iwi_tx_intr(sc, &sc->txq[3]); 1541 1542 if (r & IWI_INTR_RX_DONE) 1543 iwi_rx_intr(sc); 1544 1545 if (r & IWI_INTR_PARITY_ERROR) 1546 aprint_error_dev(sc->sc_dev, "parity error\n"); 1547 1548 out: 1549 /* Re-enable interrupts */ 1550 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1551 } 1552 1553 static int 1554 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1555 int async) 1556 { 1557 struct iwi_cmd_desc *desc; 1558 1559 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1560 1561 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1562 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1563 desc->type = type; 1564 desc->len = len; 1565 memcpy(desc->data, data, len); 1566 1567 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1568 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1569 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1570 1571 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1572 sc->cmdq.cur, type, len, async)); 1573 1574 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1575 1576 if (++sc->cmdq.queued == 1) 1577 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1578 1579 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1580 } 1581 1582 static void 1583 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1584 { 1585 struct iwi_ibssnode node; 1586 1587 /* write node information into NIC memory */ 1588 memset(&node, 0, sizeof node); 1589 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1590 1591 CSR_WRITE_REGION_1(sc, 1592 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1593 (uint8_t *)&node, sizeof node); 1594 } 1595 1596 static int 1597 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1598 int ac) 1599 { 1600 struct iwi_softc *sc = ifp->if_softc; 1601 struct ieee80211com *ic = &sc->sc_ic; 1602 struct iwi_node *in = (struct iwi_node *)ni; 1603 struct ieee80211_frame *wh; 1604 struct ieee80211_key *k; 1605 const struct chanAccParams *cap; 1606 struct iwi_tx_ring *txq = &sc->txq[ac]; 1607 struct iwi_tx_data *data; 1608 struct iwi_tx_desc *desc; 1609 struct mbuf *mnew; 1610 int error, hdrlen, i, noack = 0; 1611 1612 wh = mtod(m0, struct ieee80211_frame *); 1613 1614 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1615 hdrlen = sizeof (struct ieee80211_qosframe); 1616 cap = &ic->ic_wme.wme_chanParams; 1617 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1618 } else 1619 hdrlen = sizeof (struct ieee80211_frame); 1620 1621 /* 1622 * This is only used in IBSS mode where the firmware expect an index 1623 * in a h/w table instead of a destination address. 1624 */ 1625 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1626 in->in_station = iwi_alloc_unr(sc); 1627 1628 if (in->in_station == -1) { /* h/w table is full */ 1629 m_freem(m0); 1630 ieee80211_free_node(ni); 1631 if_statinc(ifp, if_oerrors); 1632 return 0; 1633 } 1634 iwi_write_ibssnode(sc, in); 1635 } 1636 1637 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1638 k = ieee80211_crypto_encap(ic, ni, m0); 1639 if (k == NULL) { 1640 m_freem(m0); 1641 return ENOBUFS; 1642 } 1643 1644 /* packet header may have moved, reset our local pointer */ 1645 wh = mtod(m0, struct ieee80211_frame *); 1646 } 1647 1648 if (sc->sc_drvbpf != NULL) { 1649 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1650 1651 tap->wt_flags = 0; 1652 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1653 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1654 1655 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0, BPF_D_OUT); 1656 } 1657 1658 data = &txq->data[txq->cur]; 1659 desc = &txq->desc[txq->cur]; 1660 1661 /* save and trim IEEE802.11 header */ 1662 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1663 m_adj(m0, hdrlen); 1664 1665 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1666 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1667 if (error != 0 && error != EFBIG) { 1668 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1669 error); 1670 m_freem(m0); 1671 return error; 1672 } 1673 if (error != 0) { 1674 /* too many fragments, linearize */ 1675 1676 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1677 if (mnew == NULL) { 1678 m_freem(m0); 1679 return ENOMEM; 1680 } 1681 1682 m_copy_pkthdr(mnew, m0); 1683 1684 /* If the data won't fit in the header, get a cluster */ 1685 if (m0->m_pkthdr.len > MHLEN) { 1686 MCLGET(mnew, M_DONTWAIT); 1687 if (!(mnew->m_flags & M_EXT)) { 1688 m_freem(m0); 1689 m_freem(mnew); 1690 return ENOMEM; 1691 } 1692 } 1693 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1694 m_freem(m0); 1695 mnew->m_len = mnew->m_pkthdr.len; 1696 m0 = mnew; 1697 1698 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1699 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1700 if (error != 0) { 1701 aprint_error_dev(sc->sc_dev, 1702 "could not map mbuf (error %d)\n", error); 1703 m_freem(m0); 1704 return error; 1705 } 1706 } 1707 1708 data->m = m0; 1709 data->ni = ni; 1710 1711 desc->hdr.type = IWI_HDR_TYPE_DATA; 1712 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1713 desc->station = 1714 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1715 desc->cmd = IWI_DATA_CMD_TX; 1716 desc->len = htole16(m0->m_pkthdr.len); 1717 desc->flags = 0; 1718 desc->xflags = 0; 1719 1720 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1721 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1722 1723 #if 0 1724 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1725 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1726 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1727 } else 1728 #endif 1729 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1730 1731 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1732 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1733 1734 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1735 desc->xflags |= IWI_DATA_XFLAG_QOS; 1736 1737 if (ic->ic_curmode == IEEE80211_MODE_11B) 1738 desc->xflags |= IWI_DATA_XFLAG_CCK; 1739 1740 desc->nseg = htole32(data->map->dm_nsegs); 1741 for (i = 0; i < data->map->dm_nsegs; i++) { 1742 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1743 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1744 } 1745 1746 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1747 txq->cur * IWI_TX_DESC_SIZE, 1748 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1749 1750 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1751 BUS_DMASYNC_PREWRITE); 1752 1753 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1754 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1755 1756 /* Inform firmware about this new packet */ 1757 txq->queued++; 1758 txq->cur = (txq->cur + 1) % txq->count; 1759 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1760 1761 return 0; 1762 } 1763 1764 static void 1765 iwi_start(struct ifnet *ifp) 1766 { 1767 struct iwi_softc *sc = ifp->if_softc; 1768 struct ieee80211com *ic = &sc->sc_ic; 1769 struct mbuf *m0; 1770 struct ether_header *eh; 1771 struct ieee80211_node *ni; 1772 int ac; 1773 1774 if (ic->ic_state != IEEE80211_S_RUN) 1775 return; 1776 1777 for (;;) { 1778 IFQ_POLL(&ifp->if_snd, m0); 1779 if (m0 == NULL) 1780 break; 1781 1782 KASSERT(m0->m_len >= sizeof(struct ether_header)); 1783 1784 eh = mtod(m0, struct ether_header *); 1785 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1786 if (ni == NULL) { 1787 IFQ_DEQUEUE(&ifp->if_snd, m0); 1788 m_freem(m0); 1789 if_statinc(ifp, if_oerrors); 1790 continue; 1791 } 1792 1793 /* classify mbuf so we can find which tx ring to use */ 1794 if (ieee80211_classify(ic, m0, ni) != 0) { 1795 IFQ_DEQUEUE(&ifp->if_snd, m0); 1796 m_freem(m0); 1797 ieee80211_free_node(ni); 1798 if_statinc(ifp, if_oerrors); 1799 continue; 1800 } 1801 1802 /* no QoS encapsulation for EAPOL frames */ 1803 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1804 M_WME_GETAC(m0) : WME_AC_BE; 1805 1806 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1807 /* there is no place left in this ring */ 1808 ifp->if_flags |= IFF_OACTIVE; 1809 break; 1810 } 1811 IFQ_DEQUEUE(&ifp->if_snd, m0); 1812 1813 bpf_mtap(ifp, m0, BPF_D_OUT); 1814 1815 m0 = ieee80211_encap(ic, m0, ni); 1816 if (m0 == NULL) { 1817 ieee80211_free_node(ni); 1818 if_statinc(ifp, if_oerrors); 1819 continue; 1820 } 1821 1822 bpf_mtap3(ic->ic_rawbpf, m0, BPF_D_OUT); 1823 1824 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1825 ieee80211_free_node(ni); 1826 if_statinc(ifp, if_oerrors); 1827 break; 1828 } 1829 1830 /* start watchdog timer */ 1831 sc->sc_tx_timer = 5; 1832 ifp->if_timer = 1; 1833 } 1834 } 1835 1836 static void 1837 iwi_watchdog(struct ifnet *ifp) 1838 { 1839 struct iwi_softc *sc = ifp->if_softc; 1840 1841 ifp->if_timer = 0; 1842 1843 if (sc->sc_tx_timer > 0) { 1844 if (--sc->sc_tx_timer == 0) { 1845 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1846 if_statinc(ifp, if_oerrors); 1847 ifp->if_flags &= ~IFF_UP; 1848 iwi_stop(ifp, 1); 1849 return; 1850 } 1851 ifp->if_timer = 1; 1852 } 1853 1854 ieee80211_watchdog(&sc->sc_ic); 1855 } 1856 1857 static int 1858 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1859 { 1860 uint32_t size, buf[128]; 1861 1862 memset(buf, 0, sizeof buf); 1863 1864 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1865 return copyout(buf, tbl, sizeof buf); 1866 } 1867 1868 size = uimin(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1869 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1870 1871 return copyout(buf, tbl, sizeof buf); 1872 } 1873 1874 static int 1875 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1876 { 1877 #define IS_RUNNING(ifp) \ 1878 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1879 1880 struct iwi_softc *sc = ifp->if_softc; 1881 struct ieee80211com *ic = &sc->sc_ic; 1882 struct ifreq *ifr = (struct ifreq *)data; 1883 int s, error = 0; 1884 int val; 1885 1886 s = splnet(); 1887 1888 switch (cmd) { 1889 case SIOCSIFFLAGS: 1890 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1891 break; 1892 if (ifp->if_flags & IFF_UP) { 1893 if (!(ifp->if_flags & IFF_RUNNING)) 1894 iwi_init(ifp); 1895 } else { 1896 if (ifp->if_flags & IFF_RUNNING) 1897 iwi_stop(ifp, 1); 1898 } 1899 break; 1900 1901 case SIOCADDMULTI: 1902 case SIOCDELMULTI: 1903 /* XXX no h/w multicast filter? --dyoung */ 1904 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1905 /* setup multicast filter, etc */ 1906 error = 0; 1907 } 1908 break; 1909 1910 case SIOCGTABLE0: 1911 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1912 break; 1913 1914 case SIOCGRADIO: 1915 val = !iwi_getrfkill(sc); 1916 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1917 break; 1918 1919 case SIOCSIFMEDIA: 1920 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1921 sc->sc_fwname = "ipw2200-ibss.fw"; 1922 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1923 sc->sc_fwname = "ipw2200-sniffer.fw"; 1924 } else { 1925 sc->sc_fwname = "ipw2200-bss.fw"; 1926 } 1927 error = iwi_cache_firmware(sc); 1928 if (error) 1929 break; 1930 1931 /* FALLTHROUGH */ 1932 default: 1933 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1934 1935 if (error == ENETRESET) { 1936 if (IS_RUNNING(ifp) && 1937 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1938 iwi_init(ifp); 1939 error = 0; 1940 } 1941 } 1942 1943 splx(s); 1944 return error; 1945 #undef IS_RUNNING 1946 } 1947 1948 static void 1949 iwi_stop_master(struct iwi_softc *sc) 1950 { 1951 int ntries; 1952 1953 /* Disable interrupts */ 1954 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1955 1956 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1957 for (ntries = 0; ntries < 5; ntries++) { 1958 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1959 break; 1960 DELAY(10); 1961 } 1962 if (ntries == 5) 1963 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1964 1965 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1966 IWI_RST_PRINCETON_RESET); 1967 1968 sc->flags &= ~IWI_FLAG_FW_INITED; 1969 } 1970 1971 static int 1972 iwi_reset(struct iwi_softc *sc) 1973 { 1974 int i, ntries; 1975 1976 iwi_stop_master(sc); 1977 1978 /* Move adapter to D0 state */ 1979 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1980 IWI_CTL_INIT); 1981 1982 /* Initialize Phase-Locked Level (PLL) */ 1983 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1984 1985 /* Wait for clock stabilization */ 1986 for (ntries = 0; ntries < 1000; ntries++) { 1987 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1988 break; 1989 DELAY(200); 1990 } 1991 if (ntries == 1000) { 1992 aprint_error_dev(sc->sc_dev, 1993 "timeout waiting for clock stabilization\n"); 1994 return ETIMEDOUT; 1995 } 1996 1997 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1998 IWI_RST_SW_RESET); 1999 2000 DELAY(10); 2001 2002 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2003 IWI_CTL_INIT); 2004 2005 /* Clear NIC memory */ 2006 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2007 for (i = 0; i < 0xc000; i++) 2008 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2009 2010 return 0; 2011 } 2012 2013 static int 2014 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2015 { 2016 uint16_t *w; 2017 int ntries, i; 2018 2019 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2020 IWI_RST_STOP_MASTER); 2021 for (ntries = 0; ntries < 5; ntries++) { 2022 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2023 break; 2024 DELAY(10); 2025 } 2026 if (ntries == 5) { 2027 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2028 return ETIMEDOUT; 2029 } 2030 2031 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2032 DELAY(5000); 2033 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2034 ~IWI_RST_PRINCETON_RESET); 2035 DELAY(5000); 2036 MEM_WRITE_4(sc, 0x3000e0, 0); 2037 DELAY(1000); 2038 MEM_WRITE_4(sc, 0x300004, 1); 2039 DELAY(1000); 2040 MEM_WRITE_4(sc, 0x300004, 0); 2041 DELAY(1000); 2042 MEM_WRITE_1(sc, 0x200000, 0x00); 2043 MEM_WRITE_1(sc, 0x200000, 0x40); 2044 DELAY(1000); 2045 2046 /* Adapter is buggy, we must set the address for each word */ 2047 for (w = uc; size > 0; w++, size -= 2) 2048 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2049 2050 MEM_WRITE_1(sc, 0x200000, 0x00); 2051 MEM_WRITE_1(sc, 0x200000, 0x80); 2052 2053 /* Wait until we get a response in the uc queue */ 2054 for (ntries = 0; ntries < 100; ntries++) { 2055 if (MEM_READ_1(sc, 0x200000) & 1) 2056 break; 2057 DELAY(100); 2058 } 2059 if (ntries == 100) { 2060 aprint_error_dev(sc->sc_dev, 2061 "timeout waiting for ucode to initialize\n"); 2062 return ETIMEDOUT; 2063 } 2064 2065 /* Empty the uc queue or the firmware will not initialize properly */ 2066 for (i = 0; i < 7; i++) 2067 MEM_READ_4(sc, 0x200004); 2068 2069 MEM_WRITE_1(sc, 0x200000, 0x00); 2070 2071 return 0; 2072 } 2073 2074 /* macro to handle unaligned little endian data in firmware image */ 2075 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2076 static int 2077 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2078 { 2079 bus_dmamap_t map; 2080 u_char *p, *end; 2081 uint32_t sentinel, ctl, sum; 2082 uint32_t cs, sl, cd, cl; 2083 int ntries, nsegs, error; 2084 int sn; 2085 2086 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2087 2088 /* Create a DMA map for the firmware image */ 2089 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2090 BUS_DMA_NOWAIT, &map); 2091 if (error != 0) { 2092 aprint_error_dev(sc->sc_dev, 2093 "could not create firmware DMA map\n"); 2094 map = NULL; 2095 goto fail1; 2096 } 2097 2098 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2099 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2100 if (error != 0) { 2101 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2102 error); 2103 goto fail2; 2104 } 2105 2106 /* Make sure the adapter will get up-to-date values */ 2107 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2108 2109 /* Tell the adapter where the command blocks are stored */ 2110 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2111 2112 /* 2113 * Store command blocks into adapter's internal memory using register 2114 * indirections. The adapter will read the firmware image through DMA 2115 * using information stored in command blocks. 2116 */ 2117 p = fw; 2118 end = p + size; 2119 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2120 2121 sn = 0; 2122 sl = cl = 0; 2123 cs = cd = 0; 2124 while (p < end) { 2125 if (sl == 0) { 2126 cs = map->dm_segs[sn].ds_addr; 2127 sl = map->dm_segs[sn].ds_len; 2128 sn++; 2129 } 2130 if (cl == 0) { 2131 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2132 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2133 } 2134 while (sl > 0 && cl > 0) { 2135 int len = uimin(cl, sl); 2136 2137 sl -= len; 2138 cl -= len; 2139 p += len; 2140 2141 while (len > 0) { 2142 int mlen = uimin(len, IWI_CB_MAXDATALEN); 2143 2144 ctl = IWI_CB_DEFAULT_CTL | mlen; 2145 sum = ctl ^ cs ^ cd; 2146 2147 /* Write a command block */ 2148 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2149 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2150 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2151 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2152 2153 cs += mlen; 2154 cd += mlen; 2155 len -= mlen; 2156 } 2157 } 2158 } 2159 2160 /* Write a fictive final command block (sentinel) */ 2161 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2162 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2163 2164 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2165 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2166 2167 /* Tell the adapter to start processing command blocks */ 2168 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2169 2170 /* Wait until the adapter has processed all command blocks */ 2171 for (ntries = 0; ntries < 400; ntries++) { 2172 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2173 break; 2174 DELAY(100); 2175 } 2176 if (ntries == 400) { 2177 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2178 error = ETIMEDOUT; 2179 goto fail3; 2180 } 2181 2182 /* We're done with command blocks processing */ 2183 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2184 2185 /* Allow interrupts so we know when the firmware is inited */ 2186 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2187 2188 /* Tell the adapter to initialize the firmware */ 2189 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2190 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2191 IWI_CTL_ALLOW_STANDBY); 2192 2193 /* Wait at most one second for firmware initialization to complete */ 2194 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2195 aprint_error_dev(sc->sc_dev, 2196 "timeout waiting for firmware initialization to complete\n"); 2197 goto fail3; 2198 } 2199 2200 fail3: 2201 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2202 bus_dmamap_unload(sc->sc_dmat, map); 2203 fail2: 2204 if (map != NULL) 2205 bus_dmamap_destroy(sc->sc_dmat, map); 2206 2207 fail1: 2208 return error; 2209 } 2210 2211 /* 2212 * Store firmware into kernel memory so we can download it when we need to, 2213 * e.g when the adapter wakes up from suspend mode. 2214 */ 2215 static int 2216 iwi_cache_firmware(struct iwi_softc *sc) 2217 { 2218 struct iwi_firmware *kfw = &sc->fw; 2219 firmware_handle_t fwh; 2220 struct iwi_firmware_hdr *hdr; 2221 off_t size; 2222 char *fw; 2223 int error; 2224 2225 if (iwi_accept_eula == 0) { 2226 aprint_error_dev(sc->sc_dev, 2227 "EULA not accepted; please see the iwi(4) man page.\n"); 2228 return EPERM; 2229 } 2230 2231 iwi_free_firmware(sc); 2232 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2233 if (error != 0) { 2234 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2235 goto fail1; 2236 } 2237 2238 size = firmware_get_size(fwh); 2239 if (size < sizeof(struct iwi_firmware_hdr)) { 2240 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2241 sc->sc_fwname); 2242 error = EIO; 2243 goto fail1; 2244 } 2245 sc->sc_blobsize = size; 2246 2247 sc->sc_blob = firmware_malloc(size); 2248 if (sc->sc_blob == NULL) { 2249 error = ENOMEM; 2250 firmware_close(fwh); 2251 goto fail1; 2252 } 2253 2254 error = firmware_read(fwh, 0, sc->sc_blob, size); 2255 firmware_close(fwh); 2256 if (error != 0) 2257 goto fail2; 2258 2259 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2260 hdr->version = le32toh(hdr->version); 2261 hdr->bsize = le32toh(hdr->bsize); 2262 hdr->usize = le32toh(hdr->usize); 2263 hdr->fsize = le32toh(hdr->fsize); 2264 2265 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2266 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2267 sc->sc_fwname); 2268 error = EIO; 2269 goto fail2; 2270 } 2271 2272 DPRINTF(("firmware version = %d\n", hdr->version)); 2273 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2274 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2275 aprint_error_dev(sc->sc_dev, 2276 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2277 IWI_FW_GET_MAJOR(hdr->version), 2278 IWI_FW_GET_MINOR(hdr->version), 2279 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2280 error = EIO; 2281 goto fail2; 2282 } 2283 2284 kfw->boot_size = hdr->bsize; 2285 kfw->ucode_size = hdr->usize; 2286 kfw->main_size = hdr->fsize; 2287 2288 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2289 kfw->boot = fw; 2290 fw += kfw->boot_size; 2291 kfw->ucode = fw; 2292 fw += kfw->ucode_size; 2293 kfw->main = fw; 2294 2295 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2296 kfw->boot, kfw->ucode, kfw->main)); 2297 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2298 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2299 2300 sc->flags |= IWI_FLAG_FW_CACHED; 2301 2302 return 0; 2303 2304 2305 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2306 fail1: 2307 return error; 2308 } 2309 2310 static void 2311 iwi_free_firmware(struct iwi_softc *sc) 2312 { 2313 2314 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2315 return; 2316 2317 firmware_free(sc->sc_blob, sc->sc_blobsize); 2318 2319 sc->flags &= ~IWI_FLAG_FW_CACHED; 2320 } 2321 2322 static int 2323 iwi_config(struct iwi_softc *sc) 2324 { 2325 struct ieee80211com *ic = &sc->sc_ic; 2326 struct ifnet *ifp = &sc->sc_if; 2327 struct iwi_configuration config; 2328 struct iwi_rateset rs; 2329 struct iwi_txpower power; 2330 struct ieee80211_key *wk; 2331 struct iwi_wep_key wepkey; 2332 uint32_t data; 2333 int error, nchan, i; 2334 2335 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2336 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2337 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2338 IEEE80211_ADDR_LEN, 0); 2339 if (error != 0) 2340 return error; 2341 2342 memset(&config, 0, sizeof config); 2343 config.bluetooth_coexistence = sc->bluetooth; 2344 config.antenna = sc->antenna; 2345 config.silence_threshold = 0x1e; 2346 config.multicast_enabled = 1; 2347 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2348 config.disable_unicast_decryption = 1; 2349 config.disable_multicast_decryption = 1; 2350 DPRINTF(("Configuring adapter\n")); 2351 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2352 0); 2353 if (error != 0) 2354 return error; 2355 2356 data = htole32(IWI_POWER_MODE_CAM); 2357 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2358 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2359 if (error != 0) 2360 return error; 2361 2362 data = htole32(ic->ic_rtsthreshold); 2363 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2364 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2365 if (error != 0) 2366 return error; 2367 2368 data = htole32(ic->ic_fragthreshold); 2369 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2370 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2371 if (error != 0) 2372 return error; 2373 2374 /* 2375 * Set default Tx power for 802.11b/g and 802.11a channels. 2376 */ 2377 nchan = 0; 2378 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2379 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2380 continue; 2381 power.chan[nchan].chan = i; 2382 power.chan[nchan].power = IWI_TXPOWER_MAX; 2383 nchan++; 2384 } 2385 power.nchan = nchan; 2386 2387 power.mode = IWI_MODE_11G; 2388 DPRINTF(("Setting .11g channels tx power\n")); 2389 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2390 if (error != 0) 2391 return error; 2392 2393 power.mode = IWI_MODE_11B; 2394 DPRINTF(("Setting .11b channels tx power\n")); 2395 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2396 if (error != 0) 2397 return error; 2398 2399 nchan = 0; 2400 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2401 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2402 continue; 2403 power.chan[nchan].chan = i; 2404 power.chan[nchan].power = IWI_TXPOWER_MAX; 2405 nchan++; 2406 } 2407 power.nchan = nchan; 2408 2409 if (nchan > 0) { /* 2915ABG only */ 2410 power.mode = IWI_MODE_11A; 2411 DPRINTF(("Setting .11a channels tx power\n")); 2412 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2413 0); 2414 if (error != 0) 2415 return error; 2416 } 2417 2418 rs.mode = IWI_MODE_11G; 2419 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2420 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2421 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2422 rs.nrates); 2423 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2424 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2425 if (error != 0) 2426 return error; 2427 2428 rs.mode = IWI_MODE_11A; 2429 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2430 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2431 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2432 rs.nrates); 2433 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2434 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2435 if (error != 0) 2436 return error; 2437 2438 /* if we have a desired ESSID, set it now */ 2439 if (ic->ic_des_esslen != 0) { 2440 #ifdef IWI_DEBUG 2441 if (iwi_debug > 0) { 2442 printf("Setting desired ESSID to "); 2443 ieee80211_print_essid(ic->ic_des_essid, 2444 ic->ic_des_esslen); 2445 printf("\n"); 2446 } 2447 #endif 2448 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2449 ic->ic_des_esslen, 0); 2450 if (error != 0) 2451 return error; 2452 } 2453 2454 cprng_fast(&data, sizeof(data)); 2455 data = htole32(data); 2456 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2457 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2458 if (error != 0) 2459 return error; 2460 2461 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2462 /* XXX iwi_setwepkeys? */ 2463 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2464 wk = &ic->ic_crypto.cs_nw_keys[i]; 2465 2466 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2467 wepkey.idx = i; 2468 wepkey.len = wk->wk_keylen; 2469 memset(wepkey.key, 0, sizeof wepkey.key); 2470 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2471 DPRINTF(("Setting wep key index %u len %u\n", 2472 wepkey.idx, wepkey.len)); 2473 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2474 sizeof wepkey, 0); 2475 if (error != 0) 2476 return error; 2477 } 2478 } 2479 2480 /* Enable adapter */ 2481 DPRINTF(("Enabling adapter\n")); 2482 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2483 } 2484 2485 static int 2486 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2487 { 2488 struct ieee80211com *ic = &sc->sc_ic; 2489 struct iwi_scan_v2 scan; 2490 2491 (void)memset(&scan, 0, sizeof scan); 2492 2493 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2494 scan.channels[0] = 1 | 2495 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2496 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2497 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2498 2499 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2500 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2501 } 2502 2503 static int 2504 iwi_scan(struct iwi_softc *sc) 2505 { 2506 struct ieee80211com *ic = &sc->sc_ic; 2507 struct iwi_scan_v2 scan; 2508 uint32_t type; 2509 uint8_t *p; 2510 int i, count, idx; 2511 2512 (void)memset(&scan, 0, sizeof scan); 2513 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2514 htole16(sc->dwelltime); 2515 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2516 htole16(sc->dwelltime); 2517 2518 /* tell the firmware about the desired essid */ 2519 if (ic->ic_des_esslen) { 2520 int error; 2521 2522 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2523 __func__, ic->ic_des_essid)); 2524 2525 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2526 ic->ic_des_essid, ic->ic_des_esslen, 1); 2527 if (error) 2528 return error; 2529 2530 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2531 } else { 2532 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2533 } 2534 2535 p = &scan.channels[0]; 2536 count = idx = 0; 2537 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2538 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2539 isset(ic->ic_chan_active, i)) { 2540 *++p = i; 2541 count++; 2542 idx++; 2543 iwi_scan_type_set(scan, idx, type); 2544 } 2545 } 2546 if (count) { 2547 *(p - count) = IWI_CHAN_5GHZ | count; 2548 p++; 2549 } 2550 2551 count = 0; 2552 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2553 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2554 isset(ic->ic_chan_active, i)) { 2555 *++p = i; 2556 count++; 2557 idx++; 2558 iwi_scan_type_set(scan, idx, type); 2559 } 2560 } 2561 *(p - count) = IWI_CHAN_2GHZ | count; 2562 2563 DPRINTF(("Start scanning\n")); 2564 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2565 } 2566 2567 static int 2568 iwi_auth_and_assoc(struct iwi_softc *sc) 2569 { 2570 struct ieee80211com *ic = &sc->sc_ic; 2571 struct ieee80211_node *ni = ic->ic_bss; 2572 struct ifnet *ifp = &sc->sc_if; 2573 struct ieee80211_wme_info wme; 2574 struct iwi_configuration config; 2575 struct iwi_associate assoc; 2576 struct iwi_rateset rs; 2577 uint16_t capinfo; 2578 uint32_t data; 2579 int error; 2580 2581 memset(&config, 0, sizeof config); 2582 config.bluetooth_coexistence = sc->bluetooth; 2583 config.antenna = sc->antenna; 2584 config.multicast_enabled = 1; 2585 config.silence_threshold = 0x1e; 2586 if (ic->ic_curmode == IEEE80211_MODE_11G) 2587 config.use_protection = 1; 2588 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2589 config.disable_unicast_decryption = 1; 2590 config.disable_multicast_decryption = 1; 2591 2592 DPRINTF(("Configuring adapter\n")); 2593 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2594 sizeof config, 1); 2595 if (error != 0) 2596 return error; 2597 2598 #ifdef IWI_DEBUG 2599 if (iwi_debug > 0) { 2600 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2601 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2602 aprint_debug("\n"); 2603 } 2604 #endif 2605 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2606 if (error != 0) 2607 return error; 2608 2609 /* the rate set has already been "negotiated" */ 2610 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2611 IWI_MODE_11G; 2612 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2613 rs.nrates = ni->ni_rates.rs_nrates; 2614 2615 if (rs.nrates > IWI_RATESET_SIZE) { 2616 DPRINTF(("Truncating negotiated rate set from %u\n", 2617 rs.nrates)); 2618 rs.nrates = IWI_RATESET_SIZE; 2619 } 2620 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2621 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2622 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2623 if (error != 0) 2624 return error; 2625 2626 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2627 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2628 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2629 wme.wme_oui[0] = 0x00; 2630 wme.wme_oui[1] = 0x50; 2631 wme.wme_oui[2] = 0xf2; 2632 wme.wme_type = WME_OUI_TYPE; 2633 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2634 wme.wme_version = WME_VERSION; 2635 wme.wme_info = 0; 2636 2637 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2638 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2639 if (error != 0) 2640 return error; 2641 } 2642 2643 if (ic->ic_opt_ie != NULL) { 2644 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2645 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2646 ic->ic_opt_ie_len, 1); 2647 if (error != 0) 2648 return error; 2649 } 2650 data = htole32(ni->ni_rssi); 2651 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2652 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2653 if (error != 0) 2654 return error; 2655 2656 memset(&assoc, 0, sizeof assoc); 2657 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2658 assoc.mode = IWI_MODE_11A; 2659 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2660 assoc.mode = IWI_MODE_11G; 2661 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2662 assoc.mode = IWI_MODE_11B; 2663 2664 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2665 2666 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2667 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2668 2669 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2670 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2671 2672 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2673 assoc.policy |= htole16(IWI_POLICY_WME); 2674 if (ic->ic_flags & IEEE80211_F_WPA) 2675 assoc.policy |= htole16(IWI_POLICY_WPA); 2676 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2677 assoc.type = IWI_HC_IBSS_START; 2678 else 2679 assoc.type = IWI_HC_ASSOC; 2680 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2681 2682 if (ic->ic_opmode == IEEE80211_M_IBSS) 2683 capinfo = IEEE80211_CAPINFO_IBSS; 2684 else 2685 capinfo = IEEE80211_CAPINFO_ESS; 2686 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2687 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2688 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2689 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2690 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2691 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2692 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2693 assoc.capinfo = htole16(capinfo); 2694 2695 assoc.lintval = htole16(ic->ic_lintval); 2696 assoc.intval = htole16(ni->ni_intval); 2697 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2698 if (ic->ic_opmode == IEEE80211_M_IBSS) 2699 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2700 else 2701 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2702 2703 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2704 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2705 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2706 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2707 assoc.chan, le16toh(assoc.policy), assoc.auth, 2708 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2709 le16toh(assoc.intval))); 2710 2711 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2712 } 2713 2714 static int 2715 iwi_init(struct ifnet *ifp) 2716 { 2717 struct iwi_softc *sc = ifp->if_softc; 2718 struct ieee80211com *ic = &sc->sc_ic; 2719 struct iwi_firmware *fw = &sc->fw; 2720 int i, error; 2721 2722 /* exit immediately if firmware has not been ioctl'd */ 2723 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2724 if ((error = iwi_cache_firmware(sc)) != 0) { 2725 aprint_error_dev(sc->sc_dev, 2726 "could not cache the firmware\n"); 2727 goto fail; 2728 } 2729 } 2730 2731 iwi_stop(ifp, 0); 2732 2733 if ((error = iwi_reset(sc)) != 0) { 2734 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2735 goto fail; 2736 } 2737 2738 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2739 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2740 goto fail; 2741 } 2742 2743 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2744 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2745 goto fail; 2746 } 2747 2748 iwi_stop_master(sc); 2749 2750 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2751 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2752 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2753 2754 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2755 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2756 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2757 2758 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2759 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2760 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2761 2762 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2763 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2764 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2765 2766 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2767 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2768 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2769 2770 for (i = 0; i < sc->rxq.count; i++) 2771 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2772 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2773 2774 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2775 2776 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2777 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2778 goto fail; 2779 } 2780 2781 sc->flags |= IWI_FLAG_FW_INITED; 2782 2783 if ((error = iwi_config(sc)) != 0) { 2784 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2785 goto fail; 2786 } 2787 2788 ic->ic_state = IEEE80211_S_INIT; 2789 2790 ifp->if_flags &= ~IFF_OACTIVE; 2791 ifp->if_flags |= IFF_RUNNING; 2792 2793 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2794 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2795 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2796 } else 2797 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2798 2799 return 0; 2800 2801 fail: ifp->if_flags &= ~IFF_UP; 2802 iwi_stop(ifp, 0); 2803 2804 return error; 2805 } 2806 2807 2808 /* 2809 * Return whether or not the radio is enabled in hardware 2810 * (i.e. the rfkill switch is "off"). 2811 */ 2812 static int 2813 iwi_getrfkill(struct iwi_softc *sc) 2814 { 2815 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2816 } 2817 2818 static int 2819 iwi_sysctl_radio(SYSCTLFN_ARGS) 2820 { 2821 struct sysctlnode node; 2822 struct iwi_softc *sc; 2823 int val, error; 2824 2825 node = *rnode; 2826 sc = (struct iwi_softc *)node.sysctl_data; 2827 2828 val = !iwi_getrfkill(sc); 2829 2830 node.sysctl_data = &val; 2831 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2832 2833 if (error || newp == NULL) 2834 return error; 2835 2836 return 0; 2837 } 2838 2839 #ifdef IWI_DEBUG 2840 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2841 { 2842 int rc; 2843 const struct sysctlnode *rnode; 2844 const struct sysctlnode *cnode; 2845 2846 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2847 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2848 SYSCTL_DESCR("iwi global controls"), 2849 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2850 goto err; 2851 2852 /* control debugging printfs */ 2853 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2854 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2855 "debug", SYSCTL_DESCR("Enable debugging output"), 2856 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2857 goto err; 2858 2859 return; 2860 err: 2861 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2862 } 2863 2864 #endif /* IWI_DEBUG */ 2865 2866 /* 2867 * Add sysctl knobs. 2868 */ 2869 static void 2870 iwi_sysctlattach(struct iwi_softc *sc) 2871 { 2872 int rc; 2873 const struct sysctlnode *rnode; 2874 const struct sysctlnode *cnode; 2875 2876 struct sysctllog **clog = &sc->sc_sysctllog; 2877 2878 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2879 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2880 SYSCTL_DESCR("iwi controls and statistics"), 2881 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2882 goto err; 2883 2884 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2885 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2886 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2887 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2888 goto err; 2889 2890 sc->dwelltime = 100; 2891 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2892 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2893 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2894 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2895 goto err; 2896 2897 sc->bluetooth = 0; 2898 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2899 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2900 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2901 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2902 goto err; 2903 2904 sc->antenna = IWI_ANTENNA_AUTO; 2905 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2906 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2907 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2908 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2909 goto err; 2910 2911 return; 2912 err: 2913 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2914 } 2915 2916 static void 2917 iwi_stop(struct ifnet *ifp, int disable) 2918 { 2919 struct iwi_softc *sc = ifp->if_softc; 2920 struct ieee80211com *ic = &sc->sc_ic; 2921 2922 IWI_LED_OFF(sc); 2923 2924 iwi_stop_master(sc); 2925 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2926 2927 /* reset rings */ 2928 iwi_reset_cmd_ring(sc, &sc->cmdq); 2929 iwi_reset_tx_ring(sc, &sc->txq[0]); 2930 iwi_reset_tx_ring(sc, &sc->txq[1]); 2931 iwi_reset_tx_ring(sc, &sc->txq[2]); 2932 iwi_reset_tx_ring(sc, &sc->txq[3]); 2933 iwi_reset_rx_ring(sc, &sc->rxq); 2934 2935 ifp->if_timer = 0; 2936 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2937 2938 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2939 } 2940 2941 static void 2942 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2943 { 2944 uint32_t val; 2945 2946 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2947 2948 switch (sc->nictype) { 2949 case 1: 2950 /* special NIC type: reversed leds */ 2951 if (state == IWI_LED_ACTIVITY) { 2952 state &= ~IWI_LED_ACTIVITY; 2953 state |= IWI_LED_ASSOCIATED; 2954 } else if (state == IWI_LED_ASSOCIATED) { 2955 state &= ~IWI_LED_ASSOCIATED; 2956 state |= IWI_LED_ACTIVITY; 2957 } 2958 /* and ignore toggle effect */ 2959 val |= state; 2960 break; 2961 case 0: 2962 case 2: 2963 case 3: 2964 case 4: 2965 val = (toggle && (val & state)) ? val & ~state : val | state; 2966 break; 2967 default: 2968 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2969 sc->nictype); 2970 return; 2971 break; 2972 } 2973 2974 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2975 2976 return; 2977 } 2978 2979 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2980 { 2981 const struct sysctlnode *rnode; 2982 const struct sysctlnode *cnode; 2983 2984 sysctl_createv(NULL, 0, NULL, &rnode, 2985 CTLFLAG_PERMANENT, 2986 CTLTYPE_NODE, "iwi", 2987 NULL, 2988 NULL, 0, 2989 NULL, 0, 2990 CTL_HW, CTL_CREATE, CTL_EOL); 2991 2992 sysctl_createv(NULL, 0, &rnode, &cnode, 2993 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2994 CTLTYPE_INT, "accept_eula", 2995 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2996 NULL, 0, 2997 &iwi_accept_eula, sizeof(iwi_accept_eula), 2998 CTL_CREATE, CTL_EOL); 2999 } 3000
Indexes created Fri Sep 26 20:09:58 GMT 2025