1 /* $NetBSD: if_iwi.c,v 1.104 2017/10/23 09:28:13 msaitoh Exp $ */ 2 /* $OpenBSD: if_iwi.c,v 1.111 2010/11/15 19:11:57 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2004-2008 6 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 __KERNEL_RCSID(0, "$NetBSD: if_iwi.c,v 1.104 2017/10/23 09:28:13 msaitoh Exp $"); 23 24 /*- 25 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 26 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 27 */ 28 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/sysctl.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #include <sys/conf.h> 39 #include <sys/kauth.h> 40 #include <sys/proc.h> 41 #include <sys/cprng.h> 42 43 #include <sys/bus.h> 44 #include <machine/endian.h> 45 #include <sys/intr.h> 46 47 #include <dev/firmload.h> 48 49 #include <dev/pci/pcireg.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcidevs.h> 52 53 #include <net/bpf.h> 54 #include <net/if.h> 55 #include <net/if_arp.h> 56 #include <net/if_dl.h> 57 #include <net/if_ether.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_radiotap.h> 63 64 #include <netinet/in.h> 65 #include <netinet/in_systm.h> 66 #include <netinet/in_var.h> 67 #include <netinet/ip.h> 68 69 #include <dev/pci/if_iwireg.h> 70 #include <dev/pci/if_iwivar.h> 71 72 #ifdef IWI_DEBUG 73 #define DPRINTF(x) if (iwi_debug > 0) printf x 74 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 75 int iwi_debug = 4; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n, x) 79 #endif 80 81 /* Permit loading the Intel firmware */ 82 static int iwi_accept_eula; 83 84 static int iwi_match(device_t, cfdata_t, void *); 85 static void iwi_attach(device_t, device_t, void *); 86 static int iwi_detach(device_t, int); 87 88 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 89 int); 90 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 91 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 92 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 93 int, bus_size_t, bus_size_t); 94 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 95 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 96 static struct mbuf * 97 iwi_alloc_rx_buf(struct iwi_softc *sc); 98 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 99 int); 100 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 101 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 102 103 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 104 static void iwi_node_free(struct ieee80211_node *); 105 106 static int iwi_cvtrate(int); 107 static int iwi_media_change(struct ifnet *); 108 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 109 static int iwi_wme_update(struct ieee80211com *); 110 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 111 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 112 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 113 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 114 struct iwi_frame *); 115 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 116 static void iwi_cmd_intr(struct iwi_softc *); 117 static void iwi_rx_intr(struct iwi_softc *); 118 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 119 static int iwi_intr(void *); 120 static void iwi_softintr(void *); 121 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 122 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 123 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 124 int); 125 static void iwi_start(struct ifnet *); 126 static void iwi_watchdog(struct ifnet *); 127 128 static int iwi_alloc_unr(struct iwi_softc *); 129 static void iwi_free_unr(struct iwi_softc *, int); 130 131 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 132 133 static int iwi_ioctl(struct ifnet *, u_long, void *); 134 static void iwi_stop_master(struct iwi_softc *); 135 static int iwi_reset(struct iwi_softc *); 136 static int iwi_load_ucode(struct iwi_softc *, void *, int); 137 static int iwi_load_firmware(struct iwi_softc *, void *, int); 138 static int iwi_cache_firmware(struct iwi_softc *); 139 static void iwi_free_firmware(struct iwi_softc *); 140 static int iwi_config(struct iwi_softc *); 141 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 142 static int iwi_scan(struct iwi_softc *); 143 static int iwi_auth_and_assoc(struct iwi_softc *); 144 static int iwi_init(struct ifnet *); 145 static void iwi_stop(struct ifnet *, int); 146 static int iwi_getrfkill(struct iwi_softc *); 147 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 148 static void iwi_sysctlattach(struct iwi_softc *); 149 150 /* 151 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 152 */ 153 static const struct ieee80211_rateset iwi_rateset_11a = 154 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 155 156 static const struct ieee80211_rateset iwi_rateset_11b = 157 { 4, { 2, 4, 11, 22 } }; 158 159 static const struct ieee80211_rateset iwi_rateset_11g = 160 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 161 162 static inline uint8_t 163 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 164 { 165 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 166 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 167 } 168 169 static inline uint32_t 170 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 171 { 172 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 173 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 174 } 175 176 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 177 iwi_detach, NULL); 178 179 static int 180 iwi_match(device_t parent, cfdata_t match, void *aux) 181 { 182 struct pci_attach_args *pa = aux; 183 184 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 185 return 0; 186 187 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 188 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 189 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 190 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 191 return 1; 192 193 return 0; 194 } 195 196 /* Base Address Register */ 197 #define IWI_PCI_BAR0 0x10 198 199 static void 200 iwi_attach(device_t parent, device_t self, void *aux) 201 { 202 struct iwi_softc *sc = device_private(self); 203 struct ieee80211com *ic = &sc->sc_ic; 204 struct ifnet *ifp = &sc->sc_if; 205 struct pci_attach_args *pa = aux; 206 const char *intrstr; 207 bus_space_tag_t memt; 208 bus_space_handle_t memh; 209 pci_intr_handle_t ih; 210 pcireg_t data; 211 uint16_t val; 212 int error, i; 213 char intrbuf[PCI_INTRSTR_LEN]; 214 215 sc->sc_dev = self; 216 sc->sc_pct = pa->pa_pc; 217 sc->sc_pcitag = pa->pa_tag; 218 219 pci_aprint_devinfo(pa, NULL); 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 sc->sc_soft_ih = softint_establish(SOFTINT_NET, iwi_softintr, sc); 258 if (sc->sc_soft_ih == NULL) { 259 aprint_error_dev(self, "could not establish softint\n"); 260 return; 261 } 262 263 if (pci_intr_map(pa, &ih) != 0) { 264 softint_disestablish(sc->sc_soft_ih); 265 sc->sc_soft_ih = NULL; 266 aprint_error_dev(self, "could not map interrupt\n"); 267 return; 268 } 269 270 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 271 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 272 if (sc->sc_ih == NULL) { 273 softint_disestablish(sc->sc_soft_ih); 274 sc->sc_soft_ih = NULL; 275 aprint_error_dev(self, "could not establish interrupt"); 276 if (intrstr != NULL) 277 aprint_error(" at %s", intrstr); 278 aprint_error("\n"); 279 return; 280 } 281 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 282 283 if (iwi_reset(sc) != 0) { 284 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 285 softint_disestablish(sc->sc_soft_ih); 286 sc->sc_soft_ih = NULL; 287 aprint_error_dev(self, "could not reset adapter\n"); 288 return; 289 } 290 291 ic->ic_ifp = ifp; 292 ic->ic_wme.wme_update = iwi_wme_update; 293 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 294 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 295 ic->ic_state = IEEE80211_S_INIT; 296 297 sc->sc_fwname = "ipw2200-bss.fw"; 298 299 /* set device capabilities */ 300 ic->ic_caps = 301 IEEE80211_C_IBSS | /* IBSS mode supported */ 302 IEEE80211_C_MONITOR | /* monitor mode supported */ 303 IEEE80211_C_TXPMGT | /* tx power management */ 304 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 305 IEEE80211_C_SHSLOT | /* short slot time supported */ 306 IEEE80211_C_WPA | /* 802.11i */ 307 IEEE80211_C_WME; /* 802.11e */ 308 309 /* read MAC address from EEPROM */ 310 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 311 ic->ic_myaddr[0] = val & 0xff; 312 ic->ic_myaddr[1] = val >> 8; 313 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 314 ic->ic_myaddr[2] = val & 0xff; 315 ic->ic_myaddr[3] = val >> 8; 316 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 317 ic->ic_myaddr[4] = val & 0xff; 318 ic->ic_myaddr[5] = val >> 8; 319 320 aprint_verbose_dev(self, "802.11 address %s\n", 321 ether_sprintf(ic->ic_myaddr)); 322 323 /* read the NIC type from EEPROM */ 324 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 325 sc->nictype = val & 0xff; 326 327 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 328 329 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 330 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 331 /* set supported .11a rates (2915ABG only) */ 332 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 333 334 /* set supported .11a channels */ 335 for (i = 36; i <= 64; i += 4) { 336 ic->ic_channels[i].ic_freq = 337 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 338 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 339 } 340 for (i = 149; i <= 165; i += 4) { 341 ic->ic_channels[i].ic_freq = 342 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 343 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 344 } 345 } 346 347 /* set supported .11b and .11g rates */ 348 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 349 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 350 351 /* set supported .11b and .11g channels (1 through 14) */ 352 for (i = 1; i <= 14; i++) { 353 ic->ic_channels[i].ic_freq = 354 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 355 ic->ic_channels[i].ic_flags = 356 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 357 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 358 } 359 360 ifp->if_softc = sc; 361 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 362 ifp->if_init = iwi_init; 363 ifp->if_stop = iwi_stop; 364 ifp->if_ioctl = iwi_ioctl; 365 ifp->if_start = iwi_start; 366 ifp->if_watchdog = iwi_watchdog; 367 IFQ_SET_READY(&ifp->if_snd); 368 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 369 370 error = if_initialize(ifp); 371 if (error != 0) { 372 ifp->if_softc = NULL; /* For iwi_detach() */ 373 aprint_error_dev(sc->sc_dev, "if_initialize failed(%d)\n", 374 error); 375 goto fail; 376 } 377 ieee80211_ifattach(ic); 378 /* Use common softint-based if_input */ 379 ifp->if_percpuq = if_percpuq_create(ifp); 380 if_register(ifp); 381 382 /* override default methods */ 383 ic->ic_node_alloc = iwi_node_alloc; 384 sc->sc_node_free = ic->ic_node_free; 385 ic->ic_node_free = iwi_node_free; 386 /* override state transition machine */ 387 sc->sc_newstate = ic->ic_newstate; 388 ic->ic_newstate = iwi_newstate; 389 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 390 391 /* 392 * Allocate rings. 393 */ 394 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 395 aprint_error_dev(self, "could not allocate command ring\n"); 396 goto fail; 397 } 398 399 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 400 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 401 if (error != 0) { 402 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 403 goto fail; 404 } 405 406 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 407 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 408 if (error != 0) { 409 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 410 goto fail; 411 } 412 413 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 414 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 415 if (error != 0) { 416 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 417 goto fail; 418 } 419 420 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 421 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 422 if (error != 0) { 423 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 424 goto fail; 425 } 426 427 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 428 aprint_error_dev(self, "could not allocate Rx ring\n"); 429 goto fail; 430 } 431 432 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 433 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 434 435 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 436 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 437 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 438 439 sc->sc_txtap_len = sizeof sc->sc_txtapu; 440 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 441 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 442 443 iwi_sysctlattach(sc); 444 445 if (pmf_device_register(self, NULL, NULL)) 446 pmf_class_network_register(self, ifp); 447 else 448 aprint_error_dev(self, "couldn't establish power handler\n"); 449 450 ieee80211_announce(ic); 451 452 return; 453 454 fail: iwi_detach(self, 0); 455 } 456 457 static int 458 iwi_detach(device_t self, int flags) 459 { 460 struct iwi_softc *sc = device_private(self); 461 struct ifnet *ifp = &sc->sc_if; 462 463 if (ifp->if_softc != NULL) { 464 pmf_device_deregister(self); 465 iwi_stop(ifp, 1); 466 iwi_free_firmware(sc); 467 ieee80211_ifdetach(&sc->sc_ic); 468 if_detach(ifp); 469 } 470 471 iwi_free_cmd_ring(sc, &sc->cmdq); 472 iwi_free_tx_ring(sc, &sc->txq[0]); 473 iwi_free_tx_ring(sc, &sc->txq[1]); 474 iwi_free_tx_ring(sc, &sc->txq[2]); 475 iwi_free_tx_ring(sc, &sc->txq[3]); 476 iwi_free_rx_ring(sc, &sc->rxq); 477 478 if (sc->sc_ih != NULL) { 479 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 480 sc->sc_ih = NULL; 481 } 482 483 if (sc->sc_soft_ih != NULL) { 484 softint_disestablish(sc->sc_soft_ih); 485 sc->sc_soft_ih = NULL; 486 } 487 488 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 489 490 return 0; 491 } 492 493 static int 494 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 495 int count) 496 { 497 int error, nsegs; 498 499 ring->count = count; 500 ring->queued = 0; 501 ring->cur = ring->next = 0; 502 503 /* 504 * Allocate and map command ring 505 */ 506 error = bus_dmamap_create(sc->sc_dmat, 507 IWI_CMD_DESC_SIZE * count, 1, 508 IWI_CMD_DESC_SIZE * count, 0, 509 BUS_DMA_NOWAIT, &ring->desc_map); 510 if (error != 0) { 511 aprint_error_dev(sc->sc_dev, 512 "could not create command ring DMA map\n"); 513 ring->desc_map = NULL; 514 goto fail; 515 } 516 517 error = bus_dmamem_alloc(sc->sc_dmat, 518 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 519 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 520 if (error != 0) { 521 aprint_error_dev(sc->sc_dev, 522 "could not allocate command ring DMA memory\n"); 523 goto fail; 524 } 525 526 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 527 IWI_CMD_DESC_SIZE * count, 528 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 529 if (error != 0) { 530 aprint_error_dev(sc->sc_dev, 531 "could not map command ring DMA memory\n"); 532 goto fail; 533 } 534 535 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 536 IWI_CMD_DESC_SIZE * count, NULL, 537 BUS_DMA_NOWAIT); 538 if (error != 0) { 539 aprint_error_dev(sc->sc_dev, 540 "could not load command ring DMA map\n"); 541 goto fail; 542 } 543 544 memset(sc->cmdq.desc, 0, 545 IWI_CMD_DESC_SIZE * count); 546 547 return 0; 548 549 fail: return error; 550 } 551 552 static void 553 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 554 { 555 int i; 556 557 for (i = ring->next; i != ring->cur;) { 558 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 559 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 560 BUS_DMASYNC_POSTWRITE); 561 562 wakeup(&ring->desc[i]); 563 i = (i + 1) % ring->count; 564 } 565 566 ring->queued = 0; 567 ring->cur = ring->next = 0; 568 } 569 570 static void 571 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 572 { 573 if (ring->desc_map != NULL) { 574 if (ring->desc != NULL) { 575 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 576 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 577 IWI_CMD_DESC_SIZE * ring->count); 578 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 579 } 580 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 581 } 582 } 583 584 static int 585 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 586 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 587 { 588 int i, error, nsegs; 589 590 ring->count = 0; 591 ring->queued = 0; 592 ring->cur = ring->next = 0; 593 ring->csr_ridx = csr_ridx; 594 ring->csr_widx = csr_widx; 595 596 /* 597 * Allocate and map Tx ring 598 */ 599 error = bus_dmamap_create(sc->sc_dmat, 600 IWI_TX_DESC_SIZE * count, 1, 601 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 602 &ring->desc_map); 603 if (error != 0) { 604 aprint_error_dev(sc->sc_dev, 605 "could not create tx ring DMA map\n"); 606 ring->desc_map = NULL; 607 goto fail; 608 } 609 610 error = bus_dmamem_alloc(sc->sc_dmat, 611 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 612 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 613 if (error != 0) { 614 aprint_error_dev(sc->sc_dev, 615 "could not allocate tx ring DMA memory\n"); 616 goto fail; 617 } 618 619 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 620 IWI_TX_DESC_SIZE * count, 621 (void **)&ring->desc, BUS_DMA_NOWAIT); 622 if (error != 0) { 623 aprint_error_dev(sc->sc_dev, 624 "could not map tx ring DMA memory\n"); 625 goto fail; 626 } 627 628 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 629 IWI_TX_DESC_SIZE * count, NULL, 630 BUS_DMA_NOWAIT); 631 if (error != 0) { 632 aprint_error_dev(sc->sc_dev, 633 "could not load tx ring DMA map\n"); 634 goto fail; 635 } 636 637 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 638 639 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 640 M_NOWAIT | M_ZERO); 641 if (ring->data == NULL) { 642 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 643 error = ENOMEM; 644 goto fail; 645 } 646 ring->count = count; 647 648 /* 649 * Allocate Tx buffers DMA maps 650 */ 651 for (i = 0; i < count; i++) { 652 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 653 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 654 if (error != 0) { 655 aprint_error_dev(sc->sc_dev, 656 "could not create tx buf DMA map"); 657 ring->data[i].map = NULL; 658 goto fail; 659 } 660 } 661 return 0; 662 663 fail: return error; 664 } 665 666 static void 667 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 668 { 669 struct iwi_tx_data *data; 670 int i; 671 672 for (i = 0; i < ring->count; i++) { 673 data = &ring->data[i]; 674 675 if (data->m != NULL) { 676 m_freem(data->m); 677 data->m = NULL; 678 } 679 680 if (data->map != NULL) { 681 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 682 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 683 bus_dmamap_unload(sc->sc_dmat, data->map); 684 } 685 686 if (data->ni != NULL) { 687 ieee80211_free_node(data->ni); 688 data->ni = NULL; 689 } 690 } 691 692 ring->queued = 0; 693 ring->cur = ring->next = 0; 694 } 695 696 static void 697 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 698 { 699 int i; 700 struct iwi_tx_data *data; 701 702 if (ring->desc_map != NULL) { 703 if (ring->desc != NULL) { 704 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 705 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 706 IWI_TX_DESC_SIZE * ring->count); 707 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 708 } 709 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 710 } 711 712 for (i = 0; i < ring->count; i++) { 713 data = &ring->data[i]; 714 715 if (data->m != NULL) { 716 m_freem(data->m); 717 } 718 719 if (data->map != NULL) { 720 bus_dmamap_unload(sc->sc_dmat, data->map); 721 bus_dmamap_destroy(sc->sc_dmat, data->map); 722 } 723 } 724 } 725 726 static int 727 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 728 { 729 int i, error; 730 731 ring->count = 0; 732 ring->cur = 0; 733 734 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 735 M_NOWAIT | M_ZERO); 736 if (ring->data == NULL) { 737 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 738 error = ENOMEM; 739 goto fail; 740 } 741 742 ring->count = count; 743 744 /* 745 * Allocate and map Rx buffers 746 */ 747 for (i = 0; i < count; i++) { 748 749 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 750 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 751 if (error != 0) { 752 aprint_error_dev(sc->sc_dev, 753 "could not create rx buf DMA map"); 754 ring->data[i].map = NULL; 755 goto fail; 756 } 757 758 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 759 error = ENOMEM; 760 goto fail; 761 } 762 763 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 764 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 765 if (error != 0) { 766 aprint_error_dev(sc->sc_dev, 767 "could not load rx buffer DMA map\n"); 768 goto fail; 769 } 770 771 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 772 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 773 } 774 775 return 0; 776 777 fail: return error; 778 } 779 780 static void 781 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 782 { 783 ring->cur = 0; 784 } 785 786 static void 787 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 788 { 789 int i; 790 struct iwi_rx_data *data; 791 792 for (i = 0; i < ring->count; i++) { 793 data = &ring->data[i]; 794 795 if (data->m != NULL) { 796 m_freem(data->m); 797 } 798 799 if (data->map != NULL) { 800 bus_dmamap_unload(sc->sc_dmat, data->map); 801 bus_dmamap_destroy(sc->sc_dmat, data->map); 802 } 803 804 } 805 } 806 807 static struct ieee80211_node * 808 iwi_node_alloc(struct ieee80211_node_table *nt) 809 { 810 struct iwi_node *in; 811 812 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 813 if (in == NULL) 814 return NULL; 815 816 in->in_station = -1; 817 818 return &in->in_node; 819 } 820 821 static int 822 iwi_alloc_unr(struct iwi_softc *sc) 823 { 824 int i; 825 826 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 827 if ((sc->sc_unr & (1 << i)) == 0) { 828 sc->sc_unr |= 1 << i; 829 return i; 830 } 831 832 return -1; 833 } 834 835 static void 836 iwi_free_unr(struct iwi_softc *sc, int r) 837 { 838 839 sc->sc_unr &= 1 << r; 840 } 841 842 static void 843 iwi_node_free(struct ieee80211_node *ni) 844 { 845 struct ieee80211com *ic = ni->ni_ic; 846 struct iwi_softc *sc = ic->ic_ifp->if_softc; 847 struct iwi_node *in = (struct iwi_node *)ni; 848 849 if (in->in_station != -1) 850 iwi_free_unr(sc, in->in_station); 851 852 sc->sc_node_free(ni); 853 } 854 855 static int 856 iwi_media_change(struct ifnet *ifp) 857 { 858 int error; 859 860 error = ieee80211_media_change(ifp); 861 if (error != ENETRESET) 862 return error; 863 864 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 865 iwi_init(ifp); 866 867 return 0; 868 } 869 870 /* 871 * Convert h/w rate code to IEEE rate code. 872 */ 873 static int 874 iwi_cvtrate(int iwirate) 875 { 876 switch (iwirate) { 877 case IWI_RATE_DS1: return 2; 878 case IWI_RATE_DS2: return 4; 879 case IWI_RATE_DS5: return 11; 880 case IWI_RATE_DS11: return 22; 881 case IWI_RATE_OFDM6: return 12; 882 case IWI_RATE_OFDM9: return 18; 883 case IWI_RATE_OFDM12: return 24; 884 case IWI_RATE_OFDM18: return 36; 885 case IWI_RATE_OFDM24: return 48; 886 case IWI_RATE_OFDM36: return 72; 887 case IWI_RATE_OFDM48: return 96; 888 case IWI_RATE_OFDM54: return 108; 889 } 890 return 0; 891 } 892 893 /* 894 * The firmware automatically adapts the transmit speed. We report its current 895 * value here. 896 */ 897 static void 898 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 899 { 900 struct iwi_softc *sc = ifp->if_softc; 901 struct ieee80211com *ic = &sc->sc_ic; 902 int rate; 903 904 imr->ifm_status = IFM_AVALID; 905 imr->ifm_active = IFM_IEEE80211; 906 if (ic->ic_state == IEEE80211_S_RUN) 907 imr->ifm_status |= IFM_ACTIVE; 908 909 /* read current transmission rate from adapter */ 910 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 911 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 912 913 switch (ic->ic_opmode) { 914 case IEEE80211_M_STA: 915 break; 916 917 case IEEE80211_M_IBSS: 918 imr->ifm_active |= IFM_IEEE80211_ADHOC; 919 break; 920 921 case IEEE80211_M_MONITOR: 922 imr->ifm_active |= IFM_IEEE80211_MONITOR; 923 break; 924 925 case IEEE80211_M_AHDEMO: 926 case IEEE80211_M_HOSTAP: 927 /* should not get there */ 928 break; 929 } 930 } 931 932 static int 933 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 934 { 935 struct iwi_softc *sc = ic->ic_ifp->if_softc; 936 937 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 938 ieee80211_state_name[ic->ic_state], 939 ieee80211_state_name[nstate], sc->flags)); 940 941 switch (nstate) { 942 case IEEE80211_S_SCAN: 943 if (sc->flags & IWI_FLAG_SCANNING) 944 break; 945 946 ieee80211_node_table_reset(&ic->ic_scan); 947 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 948 sc->flags |= IWI_FLAG_SCANNING; 949 /* blink the led while scanning */ 950 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 951 iwi_scan(sc); 952 break; 953 954 case IEEE80211_S_AUTH: 955 iwi_auth_and_assoc(sc); 956 break; 957 958 case IEEE80211_S_RUN: 959 if (ic->ic_opmode == IEEE80211_M_IBSS && 960 ic->ic_state == IEEE80211_S_SCAN) 961 iwi_auth_and_assoc(sc); 962 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 963 iwi_set_chan(sc, ic->ic_ibss_chan); 964 break; 965 case IEEE80211_S_ASSOC: 966 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 967 if (ic->ic_state == IEEE80211_S_AUTH) 968 break; 969 iwi_auth_and_assoc(sc); 970 break; 971 972 case IEEE80211_S_INIT: 973 sc->flags &= ~IWI_FLAG_SCANNING; 974 break; 975 } 976 977 return sc->sc_newstate(ic, nstate, arg); 978 } 979 980 /* 981 * WME parameters coming from IEEE 802.11e specification. These values are 982 * already declared in ieee80211_proto.c, but they are static so they can't 983 * be reused here. 984 */ 985 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 986 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 987 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 988 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 989 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 990 }; 991 992 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 993 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 994 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 995 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 996 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 997 }; 998 999 static int 1000 iwi_wme_update(struct ieee80211com *ic) 1001 { 1002 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 1003 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1004 struct iwi_softc *sc = ic->ic_ifp->if_softc; 1005 struct iwi_wme_params wme[3]; 1006 const struct wmeParams *wmep; 1007 int ac; 1008 1009 /* 1010 * We shall not override firmware default WME values if WME is not 1011 * actually enabled. 1012 */ 1013 if (!(ic->ic_flags & IEEE80211_F_WME)) 1014 return 0; 1015 1016 for (ac = 0; ac < WME_NUM_AC; ac++) { 1017 /* set WME values for current operating mode */ 1018 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1019 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1020 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1021 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1022 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1023 wme[0].acm[ac] = wmep->wmep_acm; 1024 1025 /* set WME values for CCK modulation */ 1026 wmep = &iwi_wme_cck_params[ac]; 1027 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1028 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1029 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1030 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1031 wme[1].acm[ac] = wmep->wmep_acm; 1032 1033 /* set WME values for OFDM modulation */ 1034 wmep = &iwi_wme_ofdm_params[ac]; 1035 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1036 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1037 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1038 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1039 wme[2].acm[ac] = wmep->wmep_acm; 1040 } 1041 1042 DPRINTF(("Setting WME parameters\n")); 1043 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1044 #undef IWI_USEC 1045 #undef IWI_EXP2 1046 } 1047 1048 /* 1049 * Read 16 bits at address 'addr' from the serial EEPROM. 1050 */ 1051 static uint16_t 1052 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1053 { 1054 uint32_t tmp; 1055 uint16_t val; 1056 int n; 1057 1058 /* Clock C once before the first command */ 1059 IWI_EEPROM_CTL(sc, 0); 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1061 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1063 1064 /* Write start bit (1) */ 1065 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1066 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1067 1068 /* Write READ opcode (10) */ 1069 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1070 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1071 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1072 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1073 1074 /* Write address A7-A0 */ 1075 for (n = 7; n >= 0; n--) { 1076 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1077 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1078 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1079 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1080 } 1081 1082 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1083 1084 /* Read data Q15-Q0 */ 1085 val = 0; 1086 for (n = 15; n >= 0; n--) { 1087 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1088 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1089 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1090 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1091 } 1092 1093 IWI_EEPROM_CTL(sc, 0); 1094 1095 /* Clear Chip Select and clock C */ 1096 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1097 IWI_EEPROM_CTL(sc, 0); 1098 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1099 1100 return val; 1101 } 1102 1103 /* 1104 * XXX: Hack to set the current channel to the value advertised in beacons or 1105 * probe responses. Only used during AP detection. 1106 */ 1107 static void 1108 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1109 { 1110 struct ieee80211_frame *wh; 1111 uint8_t subtype; 1112 uint8_t *frm, *efrm; 1113 1114 wh = mtod(m, struct ieee80211_frame *); 1115 1116 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1117 return; 1118 1119 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1120 1121 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1122 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1123 return; 1124 1125 frm = (uint8_t *)(wh + 1); 1126 efrm = mtod(m, uint8_t *) + m->m_len; 1127 1128 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1129 while (frm < efrm) { 1130 if (*frm == IEEE80211_ELEMID_DSPARMS) 1131 #if IEEE80211_CHAN_MAX < 255 1132 if (frm[2] <= IEEE80211_CHAN_MAX) 1133 #endif 1134 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1135 1136 frm += frm[1] + 2; 1137 } 1138 } 1139 1140 static struct mbuf * 1141 iwi_alloc_rx_buf(struct iwi_softc *sc) 1142 { 1143 struct mbuf *m; 1144 1145 MGETHDR(m, M_DONTWAIT, MT_DATA); 1146 if (m == NULL) { 1147 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1148 return NULL; 1149 } 1150 1151 MCLGET(m, M_DONTWAIT); 1152 if (!(m->m_flags & M_EXT)) { 1153 aprint_error_dev(sc->sc_dev, 1154 "could not allocate rx mbuf cluster\n"); 1155 m_freem(m); 1156 return NULL; 1157 } 1158 1159 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1160 return m; 1161 } 1162 1163 static void 1164 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1165 struct iwi_frame *frame) 1166 { 1167 struct ieee80211com *ic = &sc->sc_ic; 1168 struct ifnet *ifp = ic->ic_ifp; 1169 struct mbuf *m, *m_new; 1170 struct ieee80211_frame *wh; 1171 struct ieee80211_node *ni; 1172 int error, s; 1173 1174 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1175 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1176 1177 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1178 le16toh(frame->len) > MCLBYTES) { 1179 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1180 ifp->if_ierrors++; 1181 return; 1182 } 1183 1184 /* 1185 * Try to allocate a new mbuf for this ring element and 1186 * load it before processing the current mbuf. If the ring 1187 * element cannot be reloaded, drop the received packet 1188 * and reuse the old mbuf. In the unlikely case that 1189 * the old mbuf can't be reloaded either, explicitly panic. 1190 * 1191 * XXX Reorganize buffer by moving elements from the logical 1192 * end of the ring to the front instead of dropping. 1193 */ 1194 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1195 ifp->if_ierrors++; 1196 return; 1197 } 1198 1199 bus_dmamap_unload(sc->sc_dmat, data->map); 1200 1201 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1202 BUS_DMA_READ | BUS_DMA_NOWAIT); 1203 if (error != 0) { 1204 aprint_error_dev(sc->sc_dev, 1205 "could not load rx buf DMA map\n"); 1206 m_freem(m_new); 1207 ifp->if_ierrors++; 1208 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1209 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1210 if (error) 1211 panic("%s: unable to remap rx buf", 1212 device_xname(sc->sc_dev)); 1213 return; 1214 } 1215 1216 /* 1217 * New mbuf successfully loaded, update RX ring and continue 1218 * processing. 1219 */ 1220 m = data->m; 1221 data->m = m_new; 1222 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1223 1224 /* Finalize mbuf */ 1225 m_set_rcvif(m, ifp); 1226 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1227 sizeof (struct iwi_frame) + le16toh(frame->len); 1228 1229 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1230 1231 s = splnet(); 1232 1233 if (ic->ic_state == IEEE80211_S_SCAN) 1234 iwi_fix_channel(ic, m); 1235 1236 if (sc->sc_drvbpf != NULL) { 1237 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1238 1239 tap->wr_flags = 0; 1240 tap->wr_rate = iwi_cvtrate(frame->rate); 1241 tap->wr_chan_freq = 1242 htole16(ic->ic_channels[frame->chan].ic_freq); 1243 tap->wr_chan_flags = 1244 htole16(ic->ic_channels[frame->chan].ic_flags); 1245 tap->wr_antsignal = frame->signal; 1246 tap->wr_antenna = frame->antenna; 1247 1248 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1249 } 1250 wh = mtod(m, struct ieee80211_frame *); 1251 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1252 1253 /* Send the frame to the upper layer */ 1254 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1255 1256 /* node is no longer needed */ 1257 ieee80211_free_node(ni); 1258 1259 splx(s); 1260 } 1261 1262 static void 1263 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1264 { 1265 struct ieee80211com *ic = &sc->sc_ic; 1266 struct iwi_notif_authentication *auth; 1267 struct iwi_notif_association *assoc; 1268 struct iwi_notif_beacon_state *beacon; 1269 int s; 1270 1271 switch (notif->type) { 1272 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1273 #ifdef IWI_DEBUG 1274 { 1275 struct iwi_notif_scan_channel *chan = 1276 (struct iwi_notif_scan_channel *)(notif + 1); 1277 1278 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1279 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1280 } 1281 #endif 1282 break; 1283 1284 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1285 #ifdef IWI_DEBUG 1286 { 1287 struct iwi_notif_scan_complete *scan = 1288 (struct iwi_notif_scan_complete *)(notif + 1); 1289 1290 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1291 scan->status)); 1292 } 1293 #endif 1294 1295 /* monitor mode uses scan to set the channel ... */ 1296 s = splnet(); 1297 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1298 sc->flags &= ~IWI_FLAG_SCANNING; 1299 ieee80211_end_scan(ic); 1300 } else 1301 iwi_set_chan(sc, ic->ic_ibss_chan); 1302 splx(s); 1303 break; 1304 1305 case IWI_NOTIF_TYPE_AUTHENTICATION: 1306 auth = (struct iwi_notif_authentication *)(notif + 1); 1307 1308 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1309 1310 switch (auth->state) { 1311 case IWI_AUTH_SUCCESS: 1312 s = splnet(); 1313 ieee80211_node_authorize(ic->ic_bss); 1314 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1315 splx(s); 1316 break; 1317 1318 case IWI_AUTH_FAIL: 1319 break; 1320 1321 case IWI_AUTH_SENT_1: 1322 case IWI_AUTH_RECV_2: 1323 case IWI_AUTH_SEQ1_PASS: 1324 break; 1325 1326 case IWI_AUTH_SEQ1_FAIL: 1327 break; 1328 1329 default: 1330 aprint_error_dev(sc->sc_dev, 1331 "unknown authentication state %u\n", auth->state); 1332 } 1333 break; 1334 1335 case IWI_NOTIF_TYPE_ASSOCIATION: 1336 assoc = (struct iwi_notif_association *)(notif + 1); 1337 1338 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1339 assoc->status)); 1340 1341 switch (assoc->state) { 1342 case IWI_AUTH_SUCCESS: 1343 /* re-association, do nothing */ 1344 break; 1345 1346 case IWI_ASSOC_SUCCESS: 1347 s = splnet(); 1348 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1349 splx(s); 1350 break; 1351 1352 case IWI_ASSOC_FAIL: 1353 s = splnet(); 1354 ieee80211_begin_scan(ic, 1); 1355 splx(s); 1356 break; 1357 1358 default: 1359 aprint_error_dev(sc->sc_dev, 1360 "unknown association state %u\n", assoc->state); 1361 } 1362 break; 1363 1364 case IWI_NOTIF_TYPE_BEACON: 1365 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1366 1367 if (beacon->state == IWI_BEACON_MISS) { 1368 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1369 device_xname(sc->sc_dev), le32toh(beacon->number))); 1370 } 1371 break; 1372 1373 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1374 case IWI_NOTIF_TYPE_LINK_QUALITY: 1375 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1376 case IWI_NOTIF_TYPE_CALIBRATION: 1377 case IWI_NOTIF_TYPE_NOISE: 1378 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1379 break; 1380 1381 default: 1382 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1383 device_xname(sc->sc_dev), notif->type, notif->flags, 1384 le16toh(notif->len))); 1385 } 1386 } 1387 1388 static void 1389 iwi_cmd_intr(struct iwi_softc *sc) 1390 { 1391 1392 (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1393 1394 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1395 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1396 BUS_DMASYNC_POSTWRITE); 1397 1398 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1399 1400 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1401 1402 if (--sc->cmdq.queued > 0) { 1403 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, 1404 (sc->cmdq.next + 1) % sc->cmdq.count); 1405 } 1406 } 1407 1408 static void 1409 iwi_rx_intr(struct iwi_softc *sc) 1410 { 1411 struct iwi_rx_data *data; 1412 struct iwi_hdr *hdr; 1413 uint32_t hw; 1414 1415 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1416 1417 for (; sc->rxq.cur != hw;) { 1418 data = &sc->rxq.data[sc->rxq.cur]; 1419 1420 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1421 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1422 1423 hdr = mtod(data->m, struct iwi_hdr *); 1424 1425 switch (hdr->type) { 1426 case IWI_HDR_TYPE_FRAME: 1427 iwi_frame_intr(sc, data, sc->rxq.cur, 1428 (struct iwi_frame *)(hdr + 1)); 1429 break; 1430 1431 case IWI_HDR_TYPE_NOTIF: 1432 iwi_notification_intr(sc, 1433 (struct iwi_notif *)(hdr + 1)); 1434 break; 1435 1436 default: 1437 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1438 hdr->type); 1439 } 1440 1441 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1442 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1443 1444 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1445 1446 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1447 } 1448 1449 /* Tell the firmware what we have processed */ 1450 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1451 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1452 } 1453 1454 static void 1455 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1456 { 1457 struct ifnet *ifp = &sc->sc_if; 1458 struct iwi_tx_data *data; 1459 uint32_t hw; 1460 int s; 1461 1462 s = splnet(); 1463 1464 hw = CSR_READ_4(sc, txq->csr_ridx); 1465 1466 for (; txq->next != hw;) { 1467 data = &txq->data[txq->next]; 1468 1469 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1470 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1471 bus_dmamap_unload(sc->sc_dmat, data->map); 1472 m_freem(data->m); 1473 data->m = NULL; 1474 ieee80211_free_node(data->ni); 1475 data->ni = NULL; 1476 1477 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1478 1479 ifp->if_opackets++; 1480 1481 txq->queued--; 1482 txq->next = (txq->next + 1) % txq->count; 1483 } 1484 1485 sc->sc_tx_timer = 0; 1486 1487 if (txq->queued < txq->count - 8 - 8 && (ifp->if_flags & IFF_OACTIVE)) { 1488 ifp->if_flags &= ~IFF_OACTIVE; 1489 1490 /* Call start() since some buffer descriptors have been released */ 1491 iwi_start(ifp); /* in softint */ 1492 } 1493 1494 splx(s); 1495 } 1496 1497 static int 1498 iwi_intr(void *arg) 1499 { 1500 struct iwi_softc *sc = arg; 1501 uint32_t r; 1502 1503 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1504 return 0; 1505 1506 /* Disable interrupts */ 1507 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1508 1509 softint_schedule(sc->sc_soft_ih); 1510 return 1; 1511 } 1512 1513 static void 1514 iwi_softintr(void *arg) 1515 { 1516 struct iwi_softc *sc = arg; 1517 uint32_t r; 1518 int s; 1519 1520 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1521 goto out; 1522 1523 /* Acknowledge interrupts */ 1524 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1525 1526 if (r & IWI_INTR_FATAL_ERROR) { 1527 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1528 s = splnet(); 1529 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1530 iwi_stop(&sc->sc_if, 1); 1531 splx(s); 1532 return; 1533 } 1534 1535 if (r & IWI_INTR_FW_INITED) { 1536 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1537 wakeup(sc); 1538 } 1539 1540 if (r & IWI_INTR_RADIO_OFF) { 1541 DPRINTF(("radio transmitter off\n")); 1542 s = splnet(); 1543 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1544 iwi_stop(&sc->sc_if, 1); 1545 splx(s); 1546 return; 1547 } 1548 1549 if (r & IWI_INTR_CMD_DONE) 1550 iwi_cmd_intr(sc); 1551 1552 if (r & IWI_INTR_TX1_DONE) 1553 iwi_tx_intr(sc, &sc->txq[0]); 1554 1555 if (r & IWI_INTR_TX2_DONE) 1556 iwi_tx_intr(sc, &sc->txq[1]); 1557 1558 if (r & IWI_INTR_TX3_DONE) 1559 iwi_tx_intr(sc, &sc->txq[2]); 1560 1561 if (r & IWI_INTR_TX4_DONE) 1562 iwi_tx_intr(sc, &sc->txq[3]); 1563 1564 if (r & IWI_INTR_RX_DONE) 1565 iwi_rx_intr(sc); 1566 1567 if (r & IWI_INTR_PARITY_ERROR) 1568 aprint_error_dev(sc->sc_dev, "parity error\n"); 1569 1570 out: 1571 /* Re-enable interrupts */ 1572 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1573 } 1574 1575 static int 1576 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1577 int async) 1578 { 1579 struct iwi_cmd_desc *desc; 1580 1581 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1582 1583 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1584 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1585 desc->type = type; 1586 desc->len = len; 1587 memcpy(desc->data, data, len); 1588 1589 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1590 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1591 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1592 1593 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1594 sc->cmdq.cur, type, len, async)); 1595 1596 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1597 1598 if (++sc->cmdq.queued == 1) 1599 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1600 1601 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1602 } 1603 1604 static void 1605 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1606 { 1607 struct iwi_ibssnode node; 1608 1609 /* write node information into NIC memory */ 1610 memset(&node, 0, sizeof node); 1611 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1612 1613 CSR_WRITE_REGION_1(sc, 1614 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1615 (uint8_t *)&node, sizeof node); 1616 } 1617 1618 static int 1619 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1620 int ac) 1621 { 1622 struct iwi_softc *sc = ifp->if_softc; 1623 struct ieee80211com *ic = &sc->sc_ic; 1624 struct iwi_node *in = (struct iwi_node *)ni; 1625 struct ieee80211_frame *wh; 1626 struct ieee80211_key *k; 1627 const struct chanAccParams *cap; 1628 struct iwi_tx_ring *txq = &sc->txq[ac]; 1629 struct iwi_tx_data *data; 1630 struct iwi_tx_desc *desc; 1631 struct mbuf *mnew; 1632 int error, hdrlen, i, noack = 0; 1633 1634 wh = mtod(m0, struct ieee80211_frame *); 1635 1636 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1637 hdrlen = sizeof (struct ieee80211_qosframe); 1638 cap = &ic->ic_wme.wme_chanParams; 1639 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1640 } else 1641 hdrlen = sizeof (struct ieee80211_frame); 1642 1643 /* 1644 * This is only used in IBSS mode where the firmware expect an index 1645 * in a h/w table instead of a destination address. 1646 */ 1647 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1648 in->in_station = iwi_alloc_unr(sc); 1649 1650 if (in->in_station == -1) { /* h/w table is full */ 1651 m_freem(m0); 1652 ieee80211_free_node(ni); 1653 ifp->if_oerrors++; 1654 return 0; 1655 } 1656 iwi_write_ibssnode(sc, in); 1657 } 1658 1659 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1660 k = ieee80211_crypto_encap(ic, ni, m0); 1661 if (k == NULL) { 1662 m_freem(m0); 1663 return ENOBUFS; 1664 } 1665 1666 /* packet header may have moved, reset our local pointer */ 1667 wh = mtod(m0, struct ieee80211_frame *); 1668 } 1669 1670 if (sc->sc_drvbpf != NULL) { 1671 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1672 1673 tap->wt_flags = 0; 1674 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1675 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1676 1677 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1678 } 1679 1680 data = &txq->data[txq->cur]; 1681 desc = &txq->desc[txq->cur]; 1682 1683 /* save and trim IEEE802.11 header */ 1684 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1685 m_adj(m0, hdrlen); 1686 1687 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1688 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1689 if (error != 0 && error != EFBIG) { 1690 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1691 error); 1692 m_freem(m0); 1693 return error; 1694 } 1695 if (error != 0) { 1696 /* too many fragments, linearize */ 1697 1698 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1699 if (mnew == NULL) { 1700 m_freem(m0); 1701 return ENOMEM; 1702 } 1703 1704 M_COPY_PKTHDR(mnew, m0); 1705 1706 /* If the data won't fit in the header, get a cluster */ 1707 if (m0->m_pkthdr.len > MHLEN) { 1708 MCLGET(mnew, M_DONTWAIT); 1709 if (!(mnew->m_flags & M_EXT)) { 1710 m_freem(m0); 1711 m_freem(mnew); 1712 return ENOMEM; 1713 } 1714 } 1715 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1716 m_freem(m0); 1717 mnew->m_len = mnew->m_pkthdr.len; 1718 m0 = mnew; 1719 1720 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1721 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1722 if (error != 0) { 1723 aprint_error_dev(sc->sc_dev, 1724 "could not map mbuf (error %d)\n", error); 1725 m_freem(m0); 1726 return error; 1727 } 1728 } 1729 1730 data->m = m0; 1731 data->ni = ni; 1732 1733 desc->hdr.type = IWI_HDR_TYPE_DATA; 1734 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1735 desc->station = 1736 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1737 desc->cmd = IWI_DATA_CMD_TX; 1738 desc->len = htole16(m0->m_pkthdr.len); 1739 desc->flags = 0; 1740 desc->xflags = 0; 1741 1742 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1743 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1744 1745 #if 0 1746 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1747 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1748 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1749 } else 1750 #endif 1751 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1752 1753 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1754 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1755 1756 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1757 desc->xflags |= IWI_DATA_XFLAG_QOS; 1758 1759 if (ic->ic_curmode == IEEE80211_MODE_11B) 1760 desc->xflags |= IWI_DATA_XFLAG_CCK; 1761 1762 desc->nseg = htole32(data->map->dm_nsegs); 1763 for (i = 0; i < data->map->dm_nsegs; i++) { 1764 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1765 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1766 } 1767 1768 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1769 txq->cur * IWI_TX_DESC_SIZE, 1770 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1771 1772 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1773 BUS_DMASYNC_PREWRITE); 1774 1775 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1776 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1777 1778 /* Inform firmware about this new packet */ 1779 txq->queued++; 1780 txq->cur = (txq->cur + 1) % txq->count; 1781 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1782 1783 return 0; 1784 } 1785 1786 static void 1787 iwi_start(struct ifnet *ifp) 1788 { 1789 struct iwi_softc *sc = ifp->if_softc; 1790 struct ieee80211com *ic = &sc->sc_ic; 1791 struct mbuf *m0; 1792 struct ether_header *eh; 1793 struct ieee80211_node *ni; 1794 int ac; 1795 1796 if (ic->ic_state != IEEE80211_S_RUN) 1797 return; 1798 1799 for (;;) { 1800 IFQ_DEQUEUE(&ifp->if_snd, m0); 1801 if (m0 == NULL) 1802 break; 1803 1804 if (m0->m_len < sizeof (struct ether_header) && 1805 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1806 ifp->if_oerrors++; 1807 continue; 1808 } 1809 1810 eh = mtod(m0, struct ether_header *); 1811 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1812 if (ni == NULL) { 1813 m_freem(m0); 1814 ifp->if_oerrors++; 1815 continue; 1816 } 1817 1818 /* classify mbuf so we can find which tx ring to use */ 1819 if (ieee80211_classify(ic, m0, ni) != 0) { 1820 m_freem(m0); 1821 ieee80211_free_node(ni); 1822 ifp->if_oerrors++; 1823 continue; 1824 } 1825 1826 /* no QoS encapsulation for EAPOL frames */ 1827 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1828 M_WME_GETAC(m0) : WME_AC_BE; 1829 1830 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1831 /* there is no place left in this ring */ 1832 IFQ_LOCK(&ifp->if_snd); 1833 IF_PREPEND(&ifp->if_snd, m0); 1834 IFQ_UNLOCK(&ifp->if_snd); 1835 ifp->if_flags |= IFF_OACTIVE; 1836 break; 1837 } 1838 1839 bpf_mtap(ifp, m0); 1840 1841 m0 = ieee80211_encap(ic, m0, ni); 1842 if (m0 == NULL) { 1843 ieee80211_free_node(ni); 1844 ifp->if_oerrors++; 1845 continue; 1846 } 1847 1848 bpf_mtap3(ic->ic_rawbpf, m0); 1849 1850 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1851 ieee80211_free_node(ni); 1852 ifp->if_oerrors++; 1853 break; 1854 } 1855 1856 /* start watchdog timer */ 1857 sc->sc_tx_timer = 5; 1858 ifp->if_timer = 1; 1859 } 1860 } 1861 1862 static void 1863 iwi_watchdog(struct ifnet *ifp) 1864 { 1865 struct iwi_softc *sc = ifp->if_softc; 1866 1867 ifp->if_timer = 0; 1868 1869 if (sc->sc_tx_timer > 0) { 1870 if (--sc->sc_tx_timer == 0) { 1871 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1872 ifp->if_oerrors++; 1873 ifp->if_flags &= ~IFF_UP; 1874 iwi_stop(ifp, 1); 1875 return; 1876 } 1877 ifp->if_timer = 1; 1878 } 1879 1880 ieee80211_watchdog(&sc->sc_ic); 1881 } 1882 1883 static int 1884 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1885 { 1886 uint32_t size, buf[128]; 1887 1888 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1889 memset(buf, 0, sizeof buf); 1890 return copyout(buf, tbl, sizeof buf); 1891 } 1892 1893 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1894 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1895 1896 return copyout(buf, tbl, sizeof buf); 1897 } 1898 1899 static int 1900 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1901 { 1902 #define IS_RUNNING(ifp) \ 1903 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1904 1905 struct iwi_softc *sc = ifp->if_softc; 1906 struct ieee80211com *ic = &sc->sc_ic; 1907 struct ifreq *ifr = (struct ifreq *)data; 1908 int s, error = 0; 1909 int val; 1910 1911 s = splnet(); 1912 1913 switch (cmd) { 1914 case SIOCSIFFLAGS: 1915 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1916 break; 1917 if (ifp->if_flags & IFF_UP) { 1918 if (!(ifp->if_flags & IFF_RUNNING)) 1919 iwi_init(ifp); 1920 } else { 1921 if (ifp->if_flags & IFF_RUNNING) 1922 iwi_stop(ifp, 1); 1923 } 1924 break; 1925 1926 case SIOCADDMULTI: 1927 case SIOCDELMULTI: 1928 /* XXX no h/w multicast filter? --dyoung */ 1929 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1930 /* setup multicast filter, etc */ 1931 error = 0; 1932 } 1933 break; 1934 1935 case SIOCGTABLE0: 1936 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1937 break; 1938 1939 case SIOCGRADIO: 1940 val = !iwi_getrfkill(sc); 1941 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1942 break; 1943 1944 case SIOCSIFMEDIA: 1945 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1946 sc->sc_fwname = "ipw2200-ibss.fw"; 1947 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1948 sc->sc_fwname = "ipw2200-sniffer.fw"; 1949 } else { 1950 sc->sc_fwname = "ipw2200-bss.fw"; 1951 } 1952 error = iwi_cache_firmware(sc); 1953 if (error) 1954 break; 1955 /* FALLTRHOUGH */ 1956 1957 default: 1958 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1959 1960 if (error == ENETRESET) { 1961 if (IS_RUNNING(ifp) && 1962 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1963 iwi_init(ifp); 1964 error = 0; 1965 } 1966 } 1967 1968 splx(s); 1969 return error; 1970 #undef IS_RUNNING 1971 } 1972 1973 static void 1974 iwi_stop_master(struct iwi_softc *sc) 1975 { 1976 int ntries; 1977 1978 /* Disable interrupts */ 1979 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1980 1981 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1982 for (ntries = 0; ntries < 5; ntries++) { 1983 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1984 break; 1985 DELAY(10); 1986 } 1987 if (ntries == 5) 1988 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1989 1990 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1991 IWI_RST_PRINCETON_RESET); 1992 1993 sc->flags &= ~IWI_FLAG_FW_INITED; 1994 } 1995 1996 static int 1997 iwi_reset(struct iwi_softc *sc) 1998 { 1999 int i, ntries; 2000 2001 iwi_stop_master(sc); 2002 2003 /* Move adapter to D0 state */ 2004 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2005 IWI_CTL_INIT); 2006 2007 /* Initialize Phase-Locked Level (PLL) */ 2008 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2009 2010 /* Wait for clock stabilization */ 2011 for (ntries = 0; ntries < 1000; ntries++) { 2012 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2013 break; 2014 DELAY(200); 2015 } 2016 if (ntries == 1000) { 2017 aprint_error_dev(sc->sc_dev, 2018 "timeout waiting for clock stabilization\n"); 2019 return ETIMEDOUT; 2020 } 2021 2022 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2023 IWI_RST_SW_RESET); 2024 2025 DELAY(10); 2026 2027 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2028 IWI_CTL_INIT); 2029 2030 /* Clear NIC memory */ 2031 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2032 for (i = 0; i < 0xc000; i++) 2033 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2034 2035 return 0; 2036 } 2037 2038 static int 2039 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 2040 { 2041 uint16_t *w; 2042 int ntries, i; 2043 2044 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2045 IWI_RST_STOP_MASTER); 2046 for (ntries = 0; ntries < 5; ntries++) { 2047 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2048 break; 2049 DELAY(10); 2050 } 2051 if (ntries == 5) { 2052 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 2053 return ETIMEDOUT; 2054 } 2055 2056 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2057 DELAY(5000); 2058 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2059 ~IWI_RST_PRINCETON_RESET); 2060 DELAY(5000); 2061 MEM_WRITE_4(sc, 0x3000e0, 0); 2062 DELAY(1000); 2063 MEM_WRITE_4(sc, 0x300004, 1); 2064 DELAY(1000); 2065 MEM_WRITE_4(sc, 0x300004, 0); 2066 DELAY(1000); 2067 MEM_WRITE_1(sc, 0x200000, 0x00); 2068 MEM_WRITE_1(sc, 0x200000, 0x40); 2069 DELAY(1000); 2070 2071 /* Adapter is buggy, we must set the address for each word */ 2072 for (w = uc; size > 0; w++, size -= 2) 2073 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2074 2075 MEM_WRITE_1(sc, 0x200000, 0x00); 2076 MEM_WRITE_1(sc, 0x200000, 0x80); 2077 2078 /* Wait until we get a response in the uc queue */ 2079 for (ntries = 0; ntries < 100; ntries++) { 2080 if (MEM_READ_1(sc, 0x200000) & 1) 2081 break; 2082 DELAY(100); 2083 } 2084 if (ntries == 100) { 2085 aprint_error_dev(sc->sc_dev, 2086 "timeout waiting for ucode to initialize\n"); 2087 return ETIMEDOUT; 2088 } 2089 2090 /* Empty the uc queue or the firmware will not initialize properly */ 2091 for (i = 0; i < 7; i++) 2092 MEM_READ_4(sc, 0x200004); 2093 2094 MEM_WRITE_1(sc, 0x200000, 0x00); 2095 2096 return 0; 2097 } 2098 2099 /* macro to handle unaligned little endian data in firmware image */ 2100 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2101 static int 2102 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2103 { 2104 bus_dmamap_t map; 2105 u_char *p, *end; 2106 uint32_t sentinel, ctl, sum; 2107 uint32_t cs, sl, cd, cl; 2108 int ntries, nsegs, error; 2109 int sn; 2110 2111 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2112 2113 /* Create a DMA map for the firmware image */ 2114 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2115 BUS_DMA_NOWAIT, &map); 2116 if (error != 0) { 2117 aprint_error_dev(sc->sc_dev, 2118 "could not create firmware DMA map\n"); 2119 map = NULL; 2120 goto fail1; 2121 } 2122 2123 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2124 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2125 if (error != 0) { 2126 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2127 error); 2128 goto fail2; 2129 } 2130 2131 /* Make sure the adapter will get up-to-date values */ 2132 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2133 2134 /* Tell the adapter where the command blocks are stored */ 2135 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2136 2137 /* 2138 * Store command blocks into adapter's internal memory using register 2139 * indirections. The adapter will read the firmware image through DMA 2140 * using information stored in command blocks. 2141 */ 2142 p = fw; 2143 end = p + size; 2144 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2145 2146 sn = 0; 2147 sl = cl = 0; 2148 cs = cd = 0; 2149 while (p < end) { 2150 if (sl == 0) { 2151 cs = map->dm_segs[sn].ds_addr; 2152 sl = map->dm_segs[sn].ds_len; 2153 sn++; 2154 } 2155 if (cl == 0) { 2156 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2157 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2158 } 2159 while (sl > 0 && cl > 0) { 2160 int len = min(cl, sl); 2161 2162 sl -= len; 2163 cl -= len; 2164 p += len; 2165 2166 while (len > 0) { 2167 int mlen = min(len, IWI_CB_MAXDATALEN); 2168 2169 ctl = IWI_CB_DEFAULT_CTL | mlen; 2170 sum = ctl ^ cs ^ cd; 2171 2172 /* Write a command block */ 2173 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2174 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2175 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2176 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2177 2178 cs += mlen; 2179 cd += mlen; 2180 len -= mlen; 2181 } 2182 } 2183 } 2184 2185 /* Write a fictive final command block (sentinel) */ 2186 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2187 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2188 2189 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2190 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2191 2192 /* Tell the adapter to start processing command blocks */ 2193 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2194 2195 /* Wait until the adapter has processed all command blocks */ 2196 for (ntries = 0; ntries < 400; ntries++) { 2197 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2198 break; 2199 DELAY(100); 2200 } 2201 if (ntries == 400) { 2202 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2203 error = ETIMEDOUT; 2204 goto fail3; 2205 } 2206 2207 /* We're done with command blocks processing */ 2208 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2209 2210 /* Allow interrupts so we know when the firmware is inited */ 2211 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2212 2213 /* Tell the adapter to initialize the firmware */ 2214 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2215 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2216 IWI_CTL_ALLOW_STANDBY); 2217 2218 /* Wait at most one second for firmware initialization to complete */ 2219 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2220 aprint_error_dev(sc->sc_dev, 2221 "timeout waiting for firmware initialization to complete\n"); 2222 goto fail3; 2223 } 2224 2225 fail3: 2226 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2227 bus_dmamap_unload(sc->sc_dmat, map); 2228 fail2: 2229 if (map != NULL) 2230 bus_dmamap_destroy(sc->sc_dmat, map); 2231 2232 fail1: 2233 return error; 2234 } 2235 2236 /* 2237 * Store firmware into kernel memory so we can download it when we need to, 2238 * e.g when the adapter wakes up from suspend mode. 2239 */ 2240 static int 2241 iwi_cache_firmware(struct iwi_softc *sc) 2242 { 2243 struct iwi_firmware *kfw = &sc->fw; 2244 firmware_handle_t fwh; 2245 struct iwi_firmware_hdr *hdr; 2246 off_t size; 2247 char *fw; 2248 int error; 2249 2250 if (iwi_accept_eula == 0) { 2251 aprint_error_dev(sc->sc_dev, 2252 "EULA not accepted; please see the iwi(4) man page.\n"); 2253 return EPERM; 2254 } 2255 2256 iwi_free_firmware(sc); 2257 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2258 if (error != 0) { 2259 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2260 goto fail1; 2261 } 2262 2263 size = firmware_get_size(fwh); 2264 if (size < sizeof(struct iwi_firmware_hdr)) { 2265 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2266 sc->sc_fwname); 2267 error = EIO; 2268 goto fail1; 2269 } 2270 sc->sc_blobsize = size; 2271 2272 sc->sc_blob = firmware_malloc(size); 2273 if (sc->sc_blob == NULL) { 2274 error = ENOMEM; 2275 firmware_close(fwh); 2276 goto fail1; 2277 } 2278 2279 error = firmware_read(fwh, 0, sc->sc_blob, size); 2280 firmware_close(fwh); 2281 if (error != 0) 2282 goto fail2; 2283 2284 hdr = (struct iwi_firmware_hdr *)sc->sc_blob; 2285 hdr->version = le32toh(hdr->version); 2286 hdr->bsize = le32toh(hdr->bsize); 2287 hdr->usize = le32toh(hdr->usize); 2288 hdr->fsize = le32toh(hdr->fsize); 2289 2290 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2291 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2292 sc->sc_fwname); 2293 error = EIO; 2294 goto fail2; 2295 } 2296 2297 DPRINTF(("firmware version = %d\n", hdr->version)); 2298 if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || 2299 (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { 2300 aprint_error_dev(sc->sc_dev, 2301 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2302 IWI_FW_GET_MAJOR(hdr->version), 2303 IWI_FW_GET_MINOR(hdr->version), 2304 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2305 error = EIO; 2306 goto fail2; 2307 } 2308 2309 kfw->boot_size = hdr->bsize; 2310 kfw->ucode_size = hdr->usize; 2311 kfw->main_size = hdr->fsize; 2312 2313 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2314 kfw->boot = fw; 2315 fw += kfw->boot_size; 2316 kfw->ucode = fw; 2317 fw += kfw->ucode_size; 2318 kfw->main = fw; 2319 2320 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2321 kfw->boot, kfw->ucode, kfw->main)); 2322 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2323 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2324 2325 sc->flags |= IWI_FLAG_FW_CACHED; 2326 2327 return 0; 2328 2329 2330 fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); 2331 fail1: 2332 return error; 2333 } 2334 2335 static void 2336 iwi_free_firmware(struct iwi_softc *sc) 2337 { 2338 2339 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2340 return; 2341 2342 firmware_free(sc->sc_blob, sc->sc_blobsize); 2343 2344 sc->flags &= ~IWI_FLAG_FW_CACHED; 2345 } 2346 2347 static int 2348 iwi_config(struct iwi_softc *sc) 2349 { 2350 struct ieee80211com *ic = &sc->sc_ic; 2351 struct ifnet *ifp = &sc->sc_if; 2352 struct iwi_configuration config; 2353 struct iwi_rateset rs; 2354 struct iwi_txpower power; 2355 struct ieee80211_key *wk; 2356 struct iwi_wep_key wepkey; 2357 uint32_t data; 2358 int error, nchan, i; 2359 2360 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2361 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2362 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2363 IEEE80211_ADDR_LEN, 0); 2364 if (error != 0) 2365 return error; 2366 2367 memset(&config, 0, sizeof config); 2368 config.bluetooth_coexistence = sc->bluetooth; 2369 config.antenna = sc->antenna; 2370 config.silence_threshold = 0x1e; 2371 config.multicast_enabled = 1; 2372 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2373 config.disable_unicast_decryption = 1; 2374 config.disable_multicast_decryption = 1; 2375 DPRINTF(("Configuring adapter\n")); 2376 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2377 0); 2378 if (error != 0) 2379 return error; 2380 2381 data = htole32(IWI_POWER_MODE_CAM); 2382 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2383 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2384 if (error != 0) 2385 return error; 2386 2387 data = htole32(ic->ic_rtsthreshold); 2388 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2389 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2390 if (error != 0) 2391 return error; 2392 2393 data = htole32(ic->ic_fragthreshold); 2394 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2395 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2396 if (error != 0) 2397 return error; 2398 2399 /* 2400 * Set default Tx power for 802.11b/g and 802.11a channels. 2401 */ 2402 nchan = 0; 2403 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2404 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2405 continue; 2406 power.chan[nchan].chan = i; 2407 power.chan[nchan].power = IWI_TXPOWER_MAX; 2408 nchan++; 2409 } 2410 power.nchan = nchan; 2411 2412 power.mode = IWI_MODE_11G; 2413 DPRINTF(("Setting .11g channels tx power\n")); 2414 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2415 if (error != 0) 2416 return error; 2417 2418 power.mode = IWI_MODE_11B; 2419 DPRINTF(("Setting .11b channels tx power\n")); 2420 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2421 if (error != 0) 2422 return error; 2423 2424 nchan = 0; 2425 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2426 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2427 continue; 2428 power.chan[nchan].chan = i; 2429 power.chan[nchan].power = IWI_TXPOWER_MAX; 2430 nchan++; 2431 } 2432 power.nchan = nchan; 2433 2434 if (nchan > 0) { /* 2915ABG only */ 2435 power.mode = IWI_MODE_11A; 2436 DPRINTF(("Setting .11a channels tx power\n")); 2437 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2438 0); 2439 if (error != 0) 2440 return error; 2441 } 2442 2443 rs.mode = IWI_MODE_11G; 2444 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2445 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2446 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2447 rs.nrates); 2448 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2449 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2450 if (error != 0) 2451 return error; 2452 2453 rs.mode = IWI_MODE_11A; 2454 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2455 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2456 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2457 rs.nrates); 2458 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2459 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2460 if (error != 0) 2461 return error; 2462 2463 /* if we have a desired ESSID, set it now */ 2464 if (ic->ic_des_esslen != 0) { 2465 #ifdef IWI_DEBUG 2466 if (iwi_debug > 0) { 2467 printf("Setting desired ESSID to "); 2468 ieee80211_print_essid(ic->ic_des_essid, 2469 ic->ic_des_esslen); 2470 printf("\n"); 2471 } 2472 #endif 2473 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2474 ic->ic_des_esslen, 0); 2475 if (error != 0) 2476 return error; 2477 } 2478 2479 cprng_fast(&data, sizeof(data)); 2480 data = htole32(data); 2481 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2482 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2483 if (error != 0) 2484 return error; 2485 2486 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2487 /* XXX iwi_setwepkeys? */ 2488 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2489 wk = &ic->ic_crypto.cs_nw_keys[i]; 2490 2491 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2492 wepkey.idx = i; 2493 wepkey.len = wk->wk_keylen; 2494 memset(wepkey.key, 0, sizeof wepkey.key); 2495 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2496 DPRINTF(("Setting wep key index %u len %u\n", 2497 wepkey.idx, wepkey.len)); 2498 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2499 sizeof wepkey, 0); 2500 if (error != 0) 2501 return error; 2502 } 2503 } 2504 2505 /* Enable adapter */ 2506 DPRINTF(("Enabling adapter\n")); 2507 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2508 } 2509 2510 static int 2511 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2512 { 2513 struct ieee80211com *ic = &sc->sc_ic; 2514 struct iwi_scan_v2 scan; 2515 2516 (void)memset(&scan, 0, sizeof scan); 2517 2518 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2519 scan.channels[0] = 1 | 2520 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2521 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2522 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2523 2524 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2525 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2526 } 2527 2528 static int 2529 iwi_scan(struct iwi_softc *sc) 2530 { 2531 struct ieee80211com *ic = &sc->sc_ic; 2532 struct iwi_scan_v2 scan; 2533 uint32_t type; 2534 uint8_t *p; 2535 int i, count, idx; 2536 2537 (void)memset(&scan, 0, sizeof scan); 2538 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2539 htole16(sc->dwelltime); 2540 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2541 htole16(sc->dwelltime); 2542 2543 /* tell the firmware about the desired essid */ 2544 if (ic->ic_des_esslen) { 2545 int error; 2546 2547 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2548 __func__, ic->ic_des_essid)); 2549 2550 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2551 ic->ic_des_essid, ic->ic_des_esslen, 1); 2552 if (error) 2553 return error; 2554 2555 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2556 } else { 2557 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2558 } 2559 2560 p = &scan.channels[0]; 2561 count = idx = 0; 2562 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2563 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2564 isset(ic->ic_chan_active, i)) { 2565 *++p = i; 2566 count++; 2567 idx++; 2568 iwi_scan_type_set(scan, idx, type); 2569 } 2570 } 2571 if (count) { 2572 *(p - count) = IWI_CHAN_5GHZ | count; 2573 p++; 2574 } 2575 2576 count = 0; 2577 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2578 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2579 isset(ic->ic_chan_active, i)) { 2580 *++p = i; 2581 count++; 2582 idx++; 2583 iwi_scan_type_set(scan, idx, type); 2584 } 2585 } 2586 *(p - count) = IWI_CHAN_2GHZ | count; 2587 2588 DPRINTF(("Start scanning\n")); 2589 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2590 } 2591 2592 static int 2593 iwi_auth_and_assoc(struct iwi_softc *sc) 2594 { 2595 struct ieee80211com *ic = &sc->sc_ic; 2596 struct ieee80211_node *ni = ic->ic_bss; 2597 struct ifnet *ifp = &sc->sc_if; 2598 struct ieee80211_wme_info wme; 2599 struct iwi_configuration config; 2600 struct iwi_associate assoc; 2601 struct iwi_rateset rs; 2602 uint16_t capinfo; 2603 uint32_t data; 2604 int error; 2605 2606 memset(&config, 0, sizeof config); 2607 config.bluetooth_coexistence = sc->bluetooth; 2608 config.antenna = sc->antenna; 2609 config.multicast_enabled = 1; 2610 config.silence_threshold = 0x1e; 2611 if (ic->ic_curmode == IEEE80211_MODE_11G) 2612 config.use_protection = 1; 2613 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2614 config.disable_unicast_decryption = 1; 2615 config.disable_multicast_decryption = 1; 2616 2617 DPRINTF(("Configuring adapter\n")); 2618 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2619 sizeof config, 1); 2620 if (error != 0) 2621 return error; 2622 2623 #ifdef IWI_DEBUG 2624 if (iwi_debug > 0) { 2625 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2626 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2627 aprint_debug("\n"); 2628 } 2629 #endif 2630 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2631 if (error != 0) 2632 return error; 2633 2634 /* the rate set has already been "negotiated" */ 2635 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2636 IWI_MODE_11G; 2637 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2638 rs.nrates = ni->ni_rates.rs_nrates; 2639 2640 if (rs.nrates > IWI_RATESET_SIZE) { 2641 DPRINTF(("Truncating negotiated rate set from %u\n", 2642 rs.nrates)); 2643 rs.nrates = IWI_RATESET_SIZE; 2644 } 2645 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2646 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2647 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2648 if (error != 0) 2649 return error; 2650 2651 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2652 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2653 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2654 wme.wme_oui[0] = 0x00; 2655 wme.wme_oui[1] = 0x50; 2656 wme.wme_oui[2] = 0xf2; 2657 wme.wme_type = WME_OUI_TYPE; 2658 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2659 wme.wme_version = WME_VERSION; 2660 wme.wme_info = 0; 2661 2662 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2663 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2664 if (error != 0) 2665 return error; 2666 } 2667 2668 if (ic->ic_opt_ie != NULL) { 2669 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2670 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2671 ic->ic_opt_ie_len, 1); 2672 if (error != 0) 2673 return error; 2674 } 2675 data = htole32(ni->ni_rssi); 2676 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2677 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2678 if (error != 0) 2679 return error; 2680 2681 memset(&assoc, 0, sizeof assoc); 2682 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2683 assoc.mode = IWI_MODE_11A; 2684 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2685 assoc.mode = IWI_MODE_11G; 2686 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2687 assoc.mode = IWI_MODE_11B; 2688 2689 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2690 2691 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2692 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2693 2694 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2695 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2696 2697 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2698 assoc.policy |= htole16(IWI_POLICY_WME); 2699 if (ic->ic_flags & IEEE80211_F_WPA) 2700 assoc.policy |= htole16(IWI_POLICY_WPA); 2701 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2702 assoc.type = IWI_HC_IBSS_START; 2703 else 2704 assoc.type = IWI_HC_ASSOC; 2705 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2706 2707 if (ic->ic_opmode == IEEE80211_M_IBSS) 2708 capinfo = IEEE80211_CAPINFO_IBSS; 2709 else 2710 capinfo = IEEE80211_CAPINFO_ESS; 2711 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2712 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2713 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2714 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2715 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2716 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2717 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2718 assoc.capinfo = htole16(capinfo); 2719 2720 assoc.lintval = htole16(ic->ic_lintval); 2721 assoc.intval = htole16(ni->ni_intval); 2722 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2723 if (ic->ic_opmode == IEEE80211_M_IBSS) 2724 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2725 else 2726 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2727 2728 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2729 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2730 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2731 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2732 assoc.chan, le16toh(assoc.policy), assoc.auth, 2733 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2734 le16toh(assoc.intval))); 2735 2736 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2737 } 2738 2739 static int 2740 iwi_init(struct ifnet *ifp) 2741 { 2742 struct iwi_softc *sc = ifp->if_softc; 2743 struct ieee80211com *ic = &sc->sc_ic; 2744 struct iwi_firmware *fw = &sc->fw; 2745 int i, error; 2746 2747 /* exit immediately if firmware has not been ioctl'd */ 2748 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2749 if ((error = iwi_cache_firmware(sc)) != 0) { 2750 aprint_error_dev(sc->sc_dev, 2751 "could not cache the firmware\n"); 2752 goto fail; 2753 } 2754 } 2755 2756 iwi_stop(ifp, 0); 2757 2758 if ((error = iwi_reset(sc)) != 0) { 2759 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2760 goto fail; 2761 } 2762 2763 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2764 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2765 goto fail; 2766 } 2767 2768 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2769 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2770 goto fail; 2771 } 2772 2773 iwi_stop_master(sc); 2774 2775 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2776 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2777 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2778 2779 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2780 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2781 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2782 2783 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2784 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2785 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2786 2787 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2788 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2789 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2790 2791 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2792 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2793 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2794 2795 for (i = 0; i < sc->rxq.count; i++) 2796 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2797 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2798 2799 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2800 2801 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2802 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2803 goto fail; 2804 } 2805 2806 sc->flags |= IWI_FLAG_FW_INITED; 2807 2808 if ((error = iwi_config(sc)) != 0) { 2809 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2810 goto fail; 2811 } 2812 2813 ic->ic_state = IEEE80211_S_INIT; 2814 2815 ifp->if_flags &= ~IFF_OACTIVE; 2816 ifp->if_flags |= IFF_RUNNING; 2817 2818 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2819 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2820 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2821 } else 2822 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2823 2824 return 0; 2825 2826 fail: ifp->if_flags &= ~IFF_UP; 2827 iwi_stop(ifp, 0); 2828 2829 return error; 2830 } 2831 2832 2833 /* 2834 * Return whether or not the radio is enabled in hardware 2835 * (i.e. the rfkill switch is "off"). 2836 */ 2837 static int 2838 iwi_getrfkill(struct iwi_softc *sc) 2839 { 2840 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2841 } 2842 2843 static int 2844 iwi_sysctl_radio(SYSCTLFN_ARGS) 2845 { 2846 struct sysctlnode node; 2847 struct iwi_softc *sc; 2848 int val, error; 2849 2850 node = *rnode; 2851 sc = (struct iwi_softc *)node.sysctl_data; 2852 2853 val = !iwi_getrfkill(sc); 2854 2855 node.sysctl_data = &val; 2856 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2857 2858 if (error || newp == NULL) 2859 return error; 2860 2861 return 0; 2862 } 2863 2864 #ifdef IWI_DEBUG 2865 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2866 { 2867 int rc; 2868 const struct sysctlnode *rnode; 2869 const struct sysctlnode *cnode; 2870 2871 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2872 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2873 SYSCTL_DESCR("iwi global controls"), 2874 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2875 goto err; 2876 2877 /* control debugging printfs */ 2878 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2879 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2880 "debug", SYSCTL_DESCR("Enable debugging output"), 2881 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2882 goto err; 2883 2884 return; 2885 err: 2886 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2887 } 2888 2889 #endif /* IWI_DEBUG */ 2890 2891 /* 2892 * Add sysctl knobs. 2893 */ 2894 static void 2895 iwi_sysctlattach(struct iwi_softc *sc) 2896 { 2897 int rc; 2898 const struct sysctlnode *rnode; 2899 const struct sysctlnode *cnode; 2900 2901 struct sysctllog **clog = &sc->sc_sysctllog; 2902 2903 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2904 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2905 SYSCTL_DESCR("iwi controls and statistics"), 2906 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 2907 goto err; 2908 2909 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2910 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2911 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2912 iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2913 goto err; 2914 2915 sc->dwelltime = 100; 2916 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2917 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2918 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2919 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2920 goto err; 2921 2922 sc->bluetooth = 0; 2923 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2924 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2925 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2926 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2927 goto err; 2928 2929 sc->antenna = IWI_ANTENNA_AUTO; 2930 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2931 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2932 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2933 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2934 goto err; 2935 2936 return; 2937 err: 2938 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2939 } 2940 2941 static void 2942 iwi_stop(struct ifnet *ifp, int disable) 2943 { 2944 struct iwi_softc *sc = ifp->if_softc; 2945 struct ieee80211com *ic = &sc->sc_ic; 2946 2947 IWI_LED_OFF(sc); 2948 2949 iwi_stop_master(sc); 2950 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2951 2952 /* reset rings */ 2953 iwi_reset_cmd_ring(sc, &sc->cmdq); 2954 iwi_reset_tx_ring(sc, &sc->txq[0]); 2955 iwi_reset_tx_ring(sc, &sc->txq[1]); 2956 iwi_reset_tx_ring(sc, &sc->txq[2]); 2957 iwi_reset_tx_ring(sc, &sc->txq[3]); 2958 iwi_reset_rx_ring(sc, &sc->rxq); 2959 2960 ifp->if_timer = 0; 2961 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2962 2963 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2964 } 2965 2966 static void 2967 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2968 { 2969 uint32_t val; 2970 2971 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2972 2973 switch (sc->nictype) { 2974 case 1: 2975 /* special NIC type: reversed leds */ 2976 if (state == IWI_LED_ACTIVITY) { 2977 state &= ~IWI_LED_ACTIVITY; 2978 state |= IWI_LED_ASSOCIATED; 2979 } else if (state == IWI_LED_ASSOCIATED) { 2980 state &= ~IWI_LED_ASSOCIATED; 2981 state |= IWI_LED_ACTIVITY; 2982 } 2983 /* and ignore toggle effect */ 2984 val |= state; 2985 break; 2986 case 0: 2987 case 2: 2988 case 3: 2989 case 4: 2990 val = (toggle && (val & state)) ? val & ~state : val | state; 2991 break; 2992 default: 2993 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2994 sc->nictype); 2995 return; 2996 break; 2997 } 2998 2999 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 3000 3001 return; 3002 } 3003 3004 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 3005 { 3006 const struct sysctlnode *rnode; 3007 const struct sysctlnode *cnode; 3008 3009 sysctl_createv(NULL, 0, NULL, &rnode, 3010 CTLFLAG_PERMANENT, 3011 CTLTYPE_NODE, "iwi", 3012 NULL, 3013 NULL, 0, 3014 NULL, 0, 3015 CTL_HW, CTL_CREATE, CTL_EOL); 3016 3017 sysctl_createv(NULL, 0, &rnode, &cnode, 3018 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 3019 CTLTYPE_INT, "accept_eula", 3020 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 3021 NULL, 0, 3022 &iwi_accept_eula, sizeof(iwi_accept_eula), 3023 CTL_CREATE, CTL_EOL); 3024 } 3025