1 /* $NetBSD: if_iwi.c,v 1.83 2010/01/19 22:07:00 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2004, 2005 5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: if_iwi.c,v 1.83 2010/01/19 22:07:00 pooka Exp $"); 32 33 /*- 34 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 35 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 36 */ 37 38 39 #include <sys/param.h> 40 #include <sys/sockio.h> 41 #include <sys/sysctl.h> 42 #include <sys/mbuf.h> 43 #include <sys/kernel.h> 44 #include <sys/socket.h> 45 #include <sys/systm.h> 46 #include <sys/malloc.h> 47 #include <sys/conf.h> 48 #include <sys/kauth.h> 49 50 #include <sys/bus.h> 51 #include <machine/endian.h> 52 #include <sys/intr.h> 53 54 #include <dev/firmload.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/pcidevs.h> 59 60 #include <net/bpf.h> 61 #include <net/if.h> 62 #include <net/if_arp.h> 63 #include <net/if_dl.h> 64 #include <net/if_ether.h> 65 #include <net/if_media.h> 66 #include <net/if_types.h> 67 68 #include <net80211/ieee80211_var.h> 69 #include <net80211/ieee80211_radiotap.h> 70 71 #include <netinet/in.h> 72 #include <netinet/in_systm.h> 73 #include <netinet/in_var.h> 74 #include <netinet/ip.h> 75 76 #include <crypto/arc4/arc4.h> 77 78 #include <dev/pci/if_iwireg.h> 79 #include <dev/pci/if_iwivar.h> 80 81 #ifdef IWI_DEBUG 82 #define DPRINTF(x) if (iwi_debug > 0) printf x 83 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 84 int iwi_debug = 4; 85 #else 86 #define DPRINTF(x) 87 #define DPRINTFN(n, x) 88 #endif 89 90 /* Permit loading the Intel firmware */ 91 static int iwi_accept_eula; 92 93 static int iwi_match(device_t, cfdata_t, void *); 94 static void iwi_attach(device_t, device_t, void *); 95 static int iwi_detach(device_t, int); 96 97 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 98 int); 99 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 100 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 101 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 102 int, bus_size_t, bus_size_t); 103 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 104 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 105 static struct mbuf * 106 iwi_alloc_rx_buf(struct iwi_softc *sc); 107 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 108 int); 109 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 110 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 111 112 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 113 static void iwi_node_free(struct ieee80211_node *); 114 115 static int iwi_cvtrate(int); 116 static int iwi_media_change(struct ifnet *); 117 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 118 static int iwi_wme_update(struct ieee80211com *); 119 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 120 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 121 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 122 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 123 struct iwi_frame *); 124 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 125 static void iwi_cmd_intr(struct iwi_softc *); 126 static void iwi_rx_intr(struct iwi_softc *); 127 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 128 static int iwi_intr(void *); 129 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 130 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 131 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 132 int); 133 static void iwi_start(struct ifnet *); 134 static void iwi_watchdog(struct ifnet *); 135 136 static int iwi_alloc_unr(struct iwi_softc *); 137 static void iwi_free_unr(struct iwi_softc *, int); 138 139 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 140 141 static int iwi_ioctl(struct ifnet *, u_long, void *); 142 static void iwi_stop_master(struct iwi_softc *); 143 static int iwi_reset(struct iwi_softc *); 144 static int iwi_load_ucode(struct iwi_softc *, void *, int); 145 static int iwi_load_firmware(struct iwi_softc *, void *, int); 146 static int iwi_cache_firmware(struct iwi_softc *); 147 static void iwi_free_firmware(struct iwi_softc *); 148 static int iwi_config(struct iwi_softc *); 149 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 150 static int iwi_scan(struct iwi_softc *); 151 static int iwi_auth_and_assoc(struct iwi_softc *); 152 static int iwi_init(struct ifnet *); 153 static void iwi_stop(struct ifnet *, int); 154 static int iwi_getrfkill(struct iwi_softc *); 155 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 156 static void iwi_sysctlattach(struct iwi_softc *); 157 158 /* 159 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 160 */ 161 static const struct ieee80211_rateset iwi_rateset_11a = 162 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 163 164 static const struct ieee80211_rateset iwi_rateset_11b = 165 { 4, { 2, 4, 11, 22 } }; 166 167 static const struct ieee80211_rateset iwi_rateset_11g = 168 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 169 170 static inline uint8_t 171 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 172 { 173 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 174 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 175 } 176 177 static inline uint32_t 178 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 179 { 180 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 181 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 182 } 183 184 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 185 iwi_detach, NULL); 186 187 static int 188 iwi_match(device_t parent, cfdata_t match, void *aux) 189 { 190 struct pci_attach_args *pa = aux; 191 192 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 193 return 0; 194 195 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 196 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 197 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 198 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 199 return 1; 200 201 return 0; 202 } 203 204 /* Base Address Register */ 205 #define IWI_PCI_BAR0 0x10 206 207 static void 208 iwi_attach(device_t parent, device_t self, void *aux) 209 { 210 struct iwi_softc *sc = device_private(self); 211 struct ieee80211com *ic = &sc->sc_ic; 212 struct ifnet *ifp = &sc->sc_if; 213 struct pci_attach_args *pa = aux; 214 const char *intrstr; 215 char devinfo[256]; 216 bus_space_tag_t memt; 217 bus_space_handle_t memh; 218 pci_intr_handle_t ih; 219 pcireg_t data; 220 uint16_t val; 221 int error, revision, i; 222 223 sc->sc_dev = self; 224 sc->sc_pct = pa->pa_pc; 225 sc->sc_pcitag = pa->pa_tag; 226 227 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof devinfo); 228 revision = PCI_REVISION(pa->pa_class); 229 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 230 231 /* clear unit numbers allocated to IBSS */ 232 sc->sc_unr = 0; 233 234 /* power up chip */ 235 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 236 NULL)) && error != EOPNOTSUPP) { 237 aprint_error_dev(self, "cannot activate %d\n", error); 238 return; 239 } 240 241 /* enable bus-mastering */ 242 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 243 data |= PCI_COMMAND_MASTER_ENABLE; 244 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 245 246 /* map the register window */ 247 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 248 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 249 if (error != 0) { 250 aprint_error_dev(self, "could not map memory space\n"); 251 return; 252 } 253 254 sc->sc_st = memt; 255 sc->sc_sh = memh; 256 sc->sc_dmat = pa->pa_dmat; 257 258 /* disable interrupts */ 259 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 260 261 if (pci_intr_map(pa, &ih) != 0) { 262 aprint_error_dev(self, "could not map interrupt\n"); 263 return; 264 } 265 266 intrstr = pci_intr_string(sc->sc_pct, ih); 267 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 268 if (sc->sc_ih == NULL) { 269 aprint_error_dev(self, "could not establish interrupt"); 270 if (intrstr != NULL) 271 aprint_error(" at %s", intrstr); 272 aprint_error("\n"); 273 return; 274 } 275 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 276 277 if (iwi_reset(sc) != 0) { 278 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 279 aprint_error_dev(self, "could not reset adapter\n"); 280 return; 281 } 282 283 ic->ic_ifp = ifp; 284 ic->ic_wme.wme_update = iwi_wme_update; 285 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 286 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 287 ic->ic_state = IEEE80211_S_INIT; 288 289 sc->sc_fwname = "ipw2200-bss.fw"; 290 291 /* set device capabilities */ 292 ic->ic_caps = 293 IEEE80211_C_IBSS | /* IBSS mode supported */ 294 IEEE80211_C_MONITOR | /* monitor mode supported */ 295 IEEE80211_C_TXPMGT | /* tx power management */ 296 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 297 IEEE80211_C_SHSLOT | /* short slot time supported */ 298 IEEE80211_C_WPA | /* 802.11i */ 299 IEEE80211_C_WME; /* 802.11e */ 300 301 /* read MAC address from EEPROM */ 302 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 303 ic->ic_myaddr[0] = val & 0xff; 304 ic->ic_myaddr[1] = val >> 8; 305 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 306 ic->ic_myaddr[2] = val & 0xff; 307 ic->ic_myaddr[3] = val >> 8; 308 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 309 ic->ic_myaddr[4] = val & 0xff; 310 ic->ic_myaddr[5] = val >> 8; 311 312 aprint_verbose_dev(self, "802.11 address %s\n", 313 ether_sprintf(ic->ic_myaddr)); 314 315 /* read the NIC type from EEPROM */ 316 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 317 sc->nictype = val & 0xff; 318 319 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 320 321 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 322 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 323 /* set supported .11a rates (2915ABG only) */ 324 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 325 326 /* set supported .11a channels */ 327 for (i = 36; i <= 64; i += 4) { 328 ic->ic_channels[i].ic_freq = 329 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 330 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 331 } 332 for (i = 149; i <= 165; 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 } 338 339 /* set supported .11b and .11g rates */ 340 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 341 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 342 343 /* set supported .11b and .11g channels (1 through 14) */ 344 for (i = 1; i <= 14; i++) { 345 ic->ic_channels[i].ic_freq = 346 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 347 ic->ic_channels[i].ic_flags = 348 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 349 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 350 } 351 352 ifp->if_softc = sc; 353 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 354 ifp->if_init = iwi_init; 355 ifp->if_stop = iwi_stop; 356 ifp->if_ioctl = iwi_ioctl; 357 ifp->if_start = iwi_start; 358 ifp->if_watchdog = iwi_watchdog; 359 IFQ_SET_READY(&ifp->if_snd); 360 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 361 362 if_attach(ifp); 363 ieee80211_ifattach(ic); 364 /* override default methods */ 365 ic->ic_node_alloc = iwi_node_alloc; 366 sc->sc_node_free = ic->ic_node_free; 367 ic->ic_node_free = iwi_node_free; 368 /* override state transition machine */ 369 sc->sc_newstate = ic->ic_newstate; 370 ic->ic_newstate = iwi_newstate; 371 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 372 373 /* 374 * Allocate rings. 375 */ 376 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 377 aprint_error_dev(self, "could not allocate command ring\n"); 378 goto fail; 379 } 380 381 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 382 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 383 if (error != 0) { 384 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 385 goto fail; 386 } 387 388 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 389 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 390 if (error != 0) { 391 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 392 goto fail; 393 } 394 395 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 396 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 397 if (error != 0) { 398 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 399 goto fail; 400 } 401 402 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 403 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 404 if (error != 0) { 405 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 406 goto fail; 407 } 408 409 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 410 aprint_error_dev(self, "could not allocate Rx ring\n"); 411 goto fail; 412 } 413 414 bpf_ops->bpf_attach(ifp, DLT_IEEE802_11_RADIO, 415 sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); 416 417 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 418 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 419 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 420 421 sc->sc_txtap_len = sizeof sc->sc_txtapu; 422 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 423 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 424 425 iwi_sysctlattach(sc); 426 427 if (pmf_device_register(self, NULL, NULL)) 428 pmf_class_network_register(self, ifp); 429 else 430 aprint_error_dev(self, "couldn't establish power handler\n"); 431 432 ieee80211_announce(ic); 433 434 return; 435 436 fail: iwi_detach(self, 0); 437 } 438 439 static int 440 iwi_detach(device_t self, int flags) 441 { 442 struct iwi_softc *sc = device_private(self); 443 struct ifnet *ifp = &sc->sc_if; 444 445 pmf_device_deregister(self); 446 447 if (ifp != NULL) 448 iwi_stop(ifp, 1); 449 450 iwi_free_firmware(sc); 451 452 ieee80211_ifdetach(&sc->sc_ic); 453 if (ifp != NULL) 454 if_detach(ifp); 455 456 iwi_free_cmd_ring(sc, &sc->cmdq); 457 iwi_free_tx_ring(sc, &sc->txq[0]); 458 iwi_free_tx_ring(sc, &sc->txq[1]); 459 iwi_free_tx_ring(sc, &sc->txq[2]); 460 iwi_free_tx_ring(sc, &sc->txq[3]); 461 iwi_free_rx_ring(sc, &sc->rxq); 462 463 if (sc->sc_ih != NULL) { 464 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 465 sc->sc_ih = NULL; 466 } 467 468 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 469 470 return 0; 471 } 472 473 static int 474 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 475 int count) 476 { 477 int error, nsegs; 478 479 ring->count = count; 480 ring->queued = 0; 481 ring->cur = ring->next = 0; 482 483 /* 484 * Allocate and map command ring 485 */ 486 error = bus_dmamap_create(sc->sc_dmat, 487 IWI_CMD_DESC_SIZE * count, 1, 488 IWI_CMD_DESC_SIZE * count, 0, 489 BUS_DMA_NOWAIT, &ring->desc_map); 490 if (error != 0) { 491 aprint_error_dev(sc->sc_dev, 492 "could not create command ring DMA map\n"); 493 ring->desc_map = NULL; 494 goto fail; 495 } 496 497 error = bus_dmamem_alloc(sc->sc_dmat, 498 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 499 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 500 if (error != 0) { 501 aprint_error_dev(sc->sc_dev, 502 "could not allocate command ring DMA memory\n"); 503 goto fail; 504 } 505 506 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 507 IWI_CMD_DESC_SIZE * count, 508 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 509 if (error != 0) { 510 aprint_error_dev(sc->sc_dev, 511 "could not map command ring DMA memory\n"); 512 goto fail; 513 } 514 515 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 516 IWI_CMD_DESC_SIZE * count, NULL, 517 BUS_DMA_NOWAIT); 518 if (error != 0) { 519 aprint_error_dev(sc->sc_dev, 520 "could not load command ring DMA map\n"); 521 goto fail; 522 } 523 524 memset(sc->cmdq.desc, 0, 525 IWI_CMD_DESC_SIZE * count); 526 527 return 0; 528 529 fail: return error; 530 } 531 532 static void 533 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 534 { 535 int i; 536 537 for (i = ring->next; i != ring->cur;) { 538 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 539 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 540 BUS_DMASYNC_POSTWRITE); 541 542 wakeup(&ring->desc[i]); 543 i = (i + 1) % ring->count; 544 } 545 546 ring->queued = 0; 547 ring->cur = ring->next = 0; 548 } 549 550 static void 551 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 552 { 553 if (ring->desc_map != NULL) { 554 if (ring->desc != NULL) { 555 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 556 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 557 IWI_CMD_DESC_SIZE * ring->count); 558 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 559 } 560 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 561 } 562 } 563 564 static int 565 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 566 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 567 { 568 int i, error, nsegs; 569 570 ring->count = 0; 571 ring->queued = 0; 572 ring->cur = ring->next = 0; 573 ring->csr_ridx = csr_ridx; 574 ring->csr_widx = csr_widx; 575 576 /* 577 * Allocate and map Tx ring 578 */ 579 error = bus_dmamap_create(sc->sc_dmat, 580 IWI_TX_DESC_SIZE * count, 1, 581 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 582 &ring->desc_map); 583 if (error != 0) { 584 aprint_error_dev(sc->sc_dev, 585 "could not create tx ring DMA map\n"); 586 ring->desc_map = NULL; 587 goto fail; 588 } 589 590 error = bus_dmamem_alloc(sc->sc_dmat, 591 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 592 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 593 if (error != 0) { 594 aprint_error_dev(sc->sc_dev, 595 "could not allocate tx ring DMA memory\n"); 596 goto fail; 597 } 598 599 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 600 IWI_TX_DESC_SIZE * count, 601 (void **)&ring->desc, BUS_DMA_NOWAIT); 602 if (error != 0) { 603 aprint_error_dev(sc->sc_dev, 604 "could not map tx ring DMA memory\n"); 605 goto fail; 606 } 607 608 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 609 IWI_TX_DESC_SIZE * count, NULL, 610 BUS_DMA_NOWAIT); 611 if (error != 0) { 612 aprint_error_dev(sc->sc_dev, 613 "could not load tx ring DMA map\n"); 614 goto fail; 615 } 616 617 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 618 619 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 620 M_NOWAIT | M_ZERO); 621 if (ring->data == NULL) { 622 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 623 error = ENOMEM; 624 goto fail; 625 } 626 ring->count = count; 627 628 /* 629 * Allocate Tx buffers DMA maps 630 */ 631 for (i = 0; i < count; i++) { 632 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 633 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 634 if (error != 0) { 635 aprint_error_dev(sc->sc_dev, 636 "could not create tx buf DMA map"); 637 ring->data[i].map = NULL; 638 goto fail; 639 } 640 } 641 return 0; 642 643 fail: return error; 644 } 645 646 static void 647 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 648 { 649 struct iwi_tx_data *data; 650 int i; 651 652 for (i = 0; i < ring->count; i++) { 653 data = &ring->data[i]; 654 655 if (data->m != NULL) { 656 m_freem(data->m); 657 data->m = NULL; 658 } 659 660 if (data->map != NULL) { 661 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 662 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 663 bus_dmamap_unload(sc->sc_dmat, data->map); 664 } 665 666 if (data->ni != NULL) { 667 ieee80211_free_node(data->ni); 668 data->ni = NULL; 669 } 670 } 671 672 ring->queued = 0; 673 ring->cur = ring->next = 0; 674 } 675 676 static void 677 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 678 { 679 int i; 680 struct iwi_tx_data *data; 681 682 if (ring->desc_map != NULL) { 683 if (ring->desc != NULL) { 684 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 685 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 686 IWI_TX_DESC_SIZE * ring->count); 687 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 688 } 689 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 690 } 691 692 for (i = 0; i < ring->count; i++) { 693 data = &ring->data[i]; 694 695 if (data->m != NULL) { 696 m_freem(data->m); 697 } 698 699 if (data->map != NULL) { 700 bus_dmamap_unload(sc->sc_dmat, data->map); 701 bus_dmamap_destroy(sc->sc_dmat, data->map); 702 } 703 } 704 } 705 706 static int 707 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 708 { 709 int i, error; 710 711 ring->count = 0; 712 ring->cur = 0; 713 714 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 715 M_NOWAIT | M_ZERO); 716 if (ring->data == NULL) { 717 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 718 error = ENOMEM; 719 goto fail; 720 } 721 722 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->m != NULL) { 776 m_freem(data->m); 777 } 778 779 if (data->map != NULL) { 780 bus_dmamap_unload(sc->sc_dmat, data->map); 781 bus_dmamap_destroy(sc->sc_dmat, data->map); 782 } 783 784 } 785 } 786 787 static struct ieee80211_node * 788 iwi_node_alloc(struct ieee80211_node_table *nt) 789 { 790 struct iwi_node *in; 791 792 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 793 if (in == NULL) 794 return NULL; 795 796 in->in_station = -1; 797 798 return &in->in_node; 799 } 800 801 static int 802 iwi_alloc_unr(struct iwi_softc *sc) 803 { 804 int i; 805 806 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 807 if ((sc->sc_unr & (1 << i)) == 0) { 808 sc->sc_unr |= 1 << i; 809 return i; 810 } 811 812 return -1; 813 } 814 815 static void 816 iwi_free_unr(struct iwi_softc *sc, int r) 817 { 818 819 sc->sc_unr &= 1 << r; 820 } 821 822 static void 823 iwi_node_free(struct ieee80211_node *ni) 824 { 825 struct ieee80211com *ic = ni->ni_ic; 826 struct iwi_softc *sc = ic->ic_ifp->if_softc; 827 struct iwi_node *in = (struct iwi_node *)ni; 828 829 if (in->in_station != -1) 830 iwi_free_unr(sc, in->in_station); 831 832 sc->sc_node_free(ni); 833 } 834 835 static int 836 iwi_media_change(struct ifnet *ifp) 837 { 838 int error; 839 840 error = ieee80211_media_change(ifp); 841 if (error != ENETRESET) 842 return error; 843 844 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 845 iwi_init(ifp); 846 847 return 0; 848 } 849 850 /* 851 * Convert h/w rate code to IEEE rate code. 852 */ 853 static int 854 iwi_cvtrate(int iwirate) 855 { 856 switch (iwirate) { 857 case IWI_RATE_DS1: return 2; 858 case IWI_RATE_DS2: return 4; 859 case IWI_RATE_DS5: return 11; 860 case IWI_RATE_DS11: return 22; 861 case IWI_RATE_OFDM6: return 12; 862 case IWI_RATE_OFDM9: return 18; 863 case IWI_RATE_OFDM12: return 24; 864 case IWI_RATE_OFDM18: return 36; 865 case IWI_RATE_OFDM24: return 48; 866 case IWI_RATE_OFDM36: return 72; 867 case IWI_RATE_OFDM48: return 96; 868 case IWI_RATE_OFDM54: return 108; 869 } 870 return 0; 871 } 872 873 /* 874 * The firmware automatically adapts the transmit speed. We report its current 875 * value here. 876 */ 877 static void 878 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 879 { 880 struct iwi_softc *sc = ifp->if_softc; 881 struct ieee80211com *ic = &sc->sc_ic; 882 int rate; 883 884 imr->ifm_status = IFM_AVALID; 885 imr->ifm_active = IFM_IEEE80211; 886 if (ic->ic_state == IEEE80211_S_RUN) 887 imr->ifm_status |= IFM_ACTIVE; 888 889 /* read current transmission rate from adapter */ 890 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 891 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 892 893 switch (ic->ic_opmode) { 894 case IEEE80211_M_STA: 895 break; 896 897 case IEEE80211_M_IBSS: 898 imr->ifm_active |= IFM_IEEE80211_ADHOC; 899 break; 900 901 case IEEE80211_M_MONITOR: 902 imr->ifm_active |= IFM_IEEE80211_MONITOR; 903 break; 904 905 case IEEE80211_M_AHDEMO: 906 case IEEE80211_M_HOSTAP: 907 /* should not get there */ 908 break; 909 } 910 } 911 912 static int 913 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 914 { 915 struct iwi_softc *sc = ic->ic_ifp->if_softc; 916 917 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 918 ieee80211_state_name[ic->ic_state], 919 ieee80211_state_name[nstate], sc->flags)); 920 921 switch (nstate) { 922 case IEEE80211_S_SCAN: 923 if (sc->flags & IWI_FLAG_SCANNING) 924 break; 925 926 ieee80211_node_table_reset(&ic->ic_scan); 927 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 928 sc->flags |= IWI_FLAG_SCANNING; 929 /* blink the led while scanning */ 930 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 931 iwi_scan(sc); 932 break; 933 934 case IEEE80211_S_AUTH: 935 iwi_auth_and_assoc(sc); 936 break; 937 938 case IEEE80211_S_RUN: 939 if (ic->ic_opmode == IEEE80211_M_IBSS) 940 ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 941 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 942 iwi_set_chan(sc, ic->ic_ibss_chan); 943 944 return (*sc->sc_newstate)(ic, nstate, 945 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 946 947 case IEEE80211_S_ASSOC: 948 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 949 break; 950 951 case IEEE80211_S_INIT: 952 sc->flags &= ~IWI_FLAG_SCANNING; 953 return (*sc->sc_newstate)(ic, nstate, arg); 954 } 955 956 ic->ic_state = nstate; 957 return 0; 958 } 959 960 /* 961 * WME parameters coming from IEEE 802.11e specification. These values are 962 * already declared in ieee80211_proto.c, but they are static so they can't 963 * be reused here. 964 */ 965 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 966 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 967 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 968 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 969 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 970 }; 971 972 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 973 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 974 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 975 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 976 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 977 }; 978 979 static int 980 iwi_wme_update(struct ieee80211com *ic) 981 { 982 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 983 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 984 struct iwi_softc *sc = ic->ic_ifp->if_softc; 985 struct iwi_wme_params wme[3]; 986 const struct wmeParams *wmep; 987 int ac; 988 989 /* 990 * We shall not override firmware default WME values if WME is not 991 * actually enabled. 992 */ 993 if (!(ic->ic_flags & IEEE80211_F_WME)) 994 return 0; 995 996 for (ac = 0; ac < WME_NUM_AC; ac++) { 997 /* set WME values for current operating mode */ 998 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 999 wme[0].aifsn[ac] = wmep->wmep_aifsn; 1000 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1001 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1002 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1003 wme[0].acm[ac] = wmep->wmep_acm; 1004 1005 /* set WME values for CCK modulation */ 1006 wmep = &iwi_wme_cck_params[ac]; 1007 wme[1].aifsn[ac] = wmep->wmep_aifsn; 1008 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1009 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1010 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1011 wme[1].acm[ac] = wmep->wmep_acm; 1012 1013 /* set WME values for OFDM modulation */ 1014 wmep = &iwi_wme_ofdm_params[ac]; 1015 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1016 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1017 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1018 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1019 wme[2].acm[ac] = wmep->wmep_acm; 1020 } 1021 1022 DPRINTF(("Setting WME parameters\n")); 1023 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1024 #undef IWI_USEC 1025 #undef IWI_EXP2 1026 } 1027 1028 /* 1029 * Read 16 bits at address 'addr' from the serial EEPROM. 1030 */ 1031 static uint16_t 1032 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1033 { 1034 uint32_t tmp; 1035 uint16_t val; 1036 int n; 1037 1038 /* Clock C once before the first command */ 1039 IWI_EEPROM_CTL(sc, 0); 1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1041 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1042 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1043 1044 /* Write start bit (1) */ 1045 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1047 1048 /* Write READ opcode (10) */ 1049 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1050 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1053 1054 /* Write address A7-A0 */ 1055 for (n = 7; n >= 0; n--) { 1056 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1057 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1058 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1059 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1060 } 1061 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1063 1064 /* Read data Q15-Q0 */ 1065 val = 0; 1066 for (n = 15; n >= 0; n--) { 1067 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1068 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1069 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1070 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1071 } 1072 1073 IWI_EEPROM_CTL(sc, 0); 1074 1075 /* Clear Chip Select and clock C */ 1076 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1077 IWI_EEPROM_CTL(sc, 0); 1078 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1079 1080 return val; 1081 } 1082 1083 /* 1084 * XXX: Hack to set the current channel to the value advertised in beacons or 1085 * probe responses. Only used during AP detection. 1086 */ 1087 static void 1088 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1089 { 1090 struct ieee80211_frame *wh; 1091 uint8_t subtype; 1092 uint8_t *frm, *efrm; 1093 1094 wh = mtod(m, struct ieee80211_frame *); 1095 1096 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1097 return; 1098 1099 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1100 1101 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1102 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1103 return; 1104 1105 frm = (uint8_t *)(wh + 1); 1106 efrm = mtod(m, uint8_t *) + m->m_len; 1107 1108 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1109 while (frm < efrm) { 1110 if (*frm == IEEE80211_ELEMID_DSPARMS) 1111 #if IEEE80211_CHAN_MAX < 255 1112 if (frm[2] <= IEEE80211_CHAN_MAX) 1113 #endif 1114 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1115 1116 frm += frm[1] + 2; 1117 } 1118 } 1119 1120 static struct mbuf * 1121 iwi_alloc_rx_buf(struct iwi_softc *sc) 1122 { 1123 struct mbuf *m; 1124 1125 MGETHDR(m, M_DONTWAIT, MT_DATA); 1126 if (m == NULL) { 1127 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1128 return NULL; 1129 } 1130 1131 MCLGET(m, M_DONTWAIT); 1132 if (!(m->m_flags & M_EXT)) { 1133 aprint_error_dev(sc->sc_dev, 1134 "could not allocate rx mbuf cluster\n"); 1135 m_freem(m); 1136 return NULL; 1137 } 1138 1139 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1140 return m; 1141 } 1142 1143 static void 1144 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1145 struct iwi_frame *frame) 1146 { 1147 struct ieee80211com *ic = &sc->sc_ic; 1148 struct ifnet *ifp = ic->ic_ifp; 1149 struct mbuf *m, *m_new; 1150 struct ieee80211_frame *wh; 1151 struct ieee80211_node *ni; 1152 int error; 1153 1154 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1155 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1156 1157 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1158 le16toh(frame->len) > MCLBYTES) { 1159 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1160 ifp->if_ierrors++; 1161 return; 1162 } 1163 1164 /* 1165 * Try to allocate a new mbuf for this ring element and 1166 * load it before processing the current mbuf. If the ring 1167 * element cannot be reloaded, drop the received packet 1168 * and reuse the old mbuf. In the unlikely case that 1169 * the old mbuf can't be reloaded either, explicitly panic. 1170 * 1171 * XXX Reorganize buffer by moving elements from the logical 1172 * end of the ring to the front instead of dropping. 1173 */ 1174 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1175 ifp->if_ierrors++; 1176 return; 1177 } 1178 1179 bus_dmamap_unload(sc->sc_dmat, data->map); 1180 1181 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1182 BUS_DMA_READ | BUS_DMA_NOWAIT); 1183 if (error != 0) { 1184 aprint_error_dev(sc->sc_dev, 1185 "could not load rx buf DMA map\n"); 1186 m_freem(m_new); 1187 ifp->if_ierrors++; 1188 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1189 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1190 if (error) 1191 panic("%s: unable to remap rx buf", 1192 device_xname(sc->sc_dev)); 1193 return; 1194 } 1195 1196 /* 1197 * New mbuf successfully loaded, update RX ring and continue 1198 * processing. 1199 */ 1200 m = data->m; 1201 data->m = m_new; 1202 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1203 1204 /* Finalize mbuf */ 1205 m->m_pkthdr.rcvif = ifp; 1206 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1207 sizeof (struct iwi_frame) + le16toh(frame->len); 1208 1209 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 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_ops->bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 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 1238 static void 1239 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1240 { 1241 struct ieee80211com *ic = &sc->sc_ic; 1242 struct iwi_notif_scan_channel *chan; 1243 struct iwi_notif_scan_complete *scan; 1244 struct iwi_notif_authentication *auth; 1245 struct iwi_notif_association *assoc; 1246 struct iwi_notif_beacon_state *beacon; 1247 1248 switch (notif->type) { 1249 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1250 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1251 1252 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1253 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1254 break; 1255 1256 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1257 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1258 1259 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1260 scan->status)); 1261 1262 /* monitor mode uses scan to set the channel ... */ 1263 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1264 sc->flags &= ~IWI_FLAG_SCANNING; 1265 ieee80211_end_scan(ic); 1266 } else 1267 iwi_set_chan(sc, ic->ic_ibss_chan); 1268 break; 1269 1270 case IWI_NOTIF_TYPE_AUTHENTICATION: 1271 auth = (struct iwi_notif_authentication *)(notif + 1); 1272 1273 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1274 1275 switch (auth->state) { 1276 case IWI_AUTH_SUCCESS: 1277 ieee80211_node_authorize(ic->ic_bss); 1278 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1279 break; 1280 1281 case IWI_AUTH_FAIL: 1282 break; 1283 1284 default: 1285 aprint_error_dev(sc->sc_dev, 1286 "unknown authentication state %u\n", auth->state); 1287 } 1288 break; 1289 1290 case IWI_NOTIF_TYPE_ASSOCIATION: 1291 assoc = (struct iwi_notif_association *)(notif + 1); 1292 1293 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1294 assoc->status)); 1295 1296 switch (assoc->state) { 1297 case IWI_AUTH_SUCCESS: 1298 /* re-association, do nothing */ 1299 break; 1300 1301 case IWI_ASSOC_SUCCESS: 1302 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1303 break; 1304 1305 case IWI_ASSOC_FAIL: 1306 ieee80211_begin_scan(ic, 1); 1307 break; 1308 1309 default: 1310 aprint_error_dev(sc->sc_dev, 1311 "unknown association state %u\n", assoc->state); 1312 } 1313 break; 1314 1315 case IWI_NOTIF_TYPE_BEACON: 1316 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1317 1318 if (beacon->state == IWI_BEACON_MISS) { 1319 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1320 device_xname(sc->sc_dev), le32toh(beacon->number))); 1321 } 1322 break; 1323 1324 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1325 case IWI_NOTIF_TYPE_LINK_QUALITY: 1326 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1327 case IWI_NOTIF_TYPE_CALIBRATION: 1328 case IWI_NOTIF_TYPE_NOISE: 1329 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1330 break; 1331 1332 default: 1333 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1334 device_xname(sc->sc_dev), notif->type, notif->flags, 1335 le16toh(notif->len))); 1336 } 1337 } 1338 1339 static void 1340 iwi_cmd_intr(struct iwi_softc *sc) 1341 { 1342 uint32_t hw; 1343 1344 hw = CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1345 1346 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1347 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1348 BUS_DMASYNC_POSTWRITE); 1349 1350 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1351 1352 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1353 1354 if (--sc->cmdq.queued > 0) { 1355 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1356 } 1357 } 1358 1359 static void 1360 iwi_rx_intr(struct iwi_softc *sc) 1361 { 1362 struct iwi_rx_data *data; 1363 struct iwi_hdr *hdr; 1364 uint32_t hw; 1365 1366 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1367 1368 for (; sc->rxq.cur != hw;) { 1369 data = &sc->rxq.data[sc->rxq.cur]; 1370 1371 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1372 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1373 1374 hdr = mtod(data->m, struct iwi_hdr *); 1375 1376 switch (hdr->type) { 1377 case IWI_HDR_TYPE_FRAME: 1378 iwi_frame_intr(sc, data, sc->rxq.cur, 1379 (struct iwi_frame *)(hdr + 1)); 1380 break; 1381 1382 case IWI_HDR_TYPE_NOTIF: 1383 iwi_notification_intr(sc, 1384 (struct iwi_notif *)(hdr + 1)); 1385 break; 1386 1387 default: 1388 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1389 hdr->type); 1390 } 1391 1392 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1393 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1394 1395 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1396 1397 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1398 } 1399 1400 /* Tell the firmware what we have processed */ 1401 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1402 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1403 } 1404 1405 static void 1406 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1407 { 1408 struct ifnet *ifp = &sc->sc_if; 1409 struct iwi_tx_data *data; 1410 uint32_t hw; 1411 1412 hw = CSR_READ_4(sc, txq->csr_ridx); 1413 1414 for (; txq->next != hw;) { 1415 data = &txq->data[txq->next]; 1416 1417 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1418 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1419 bus_dmamap_unload(sc->sc_dmat, data->map); 1420 m_freem(data->m); 1421 data->m = NULL; 1422 ieee80211_free_node(data->ni); 1423 data->ni = NULL; 1424 1425 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1426 1427 ifp->if_opackets++; 1428 1429 txq->queued--; 1430 txq->next = (txq->next + 1) % txq->count; 1431 } 1432 1433 sc->sc_tx_timer = 0; 1434 ifp->if_flags &= ~IFF_OACTIVE; 1435 1436 /* Call start() since some buffer descriptors have been released */ 1437 (*ifp->if_start)(ifp); 1438 } 1439 1440 static int 1441 iwi_intr(void *arg) 1442 { 1443 struct iwi_softc *sc = arg; 1444 uint32_t r; 1445 1446 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1447 return 0; 1448 1449 /* Acknowledge interrupts */ 1450 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1451 1452 if (r & IWI_INTR_FATAL_ERROR) { 1453 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1454 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1455 iwi_stop(&sc->sc_if, 1); 1456 return (1); 1457 } 1458 1459 if (r & IWI_INTR_FW_INITED) { 1460 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1461 wakeup(sc); 1462 } 1463 1464 if (r & IWI_INTR_RADIO_OFF) { 1465 DPRINTF(("radio transmitter off\n")); 1466 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1467 iwi_stop(&sc->sc_if, 1); 1468 return (1); 1469 } 1470 1471 if (r & IWI_INTR_CMD_DONE) 1472 iwi_cmd_intr(sc); 1473 1474 if (r & IWI_INTR_TX1_DONE) 1475 iwi_tx_intr(sc, &sc->txq[0]); 1476 1477 if (r & IWI_INTR_TX2_DONE) 1478 iwi_tx_intr(sc, &sc->txq[1]); 1479 1480 if (r & IWI_INTR_TX3_DONE) 1481 iwi_tx_intr(sc, &sc->txq[2]); 1482 1483 if (r & IWI_INTR_TX4_DONE) 1484 iwi_tx_intr(sc, &sc->txq[3]); 1485 1486 if (r & IWI_INTR_RX_DONE) 1487 iwi_rx_intr(sc); 1488 1489 if (r & IWI_INTR_PARITY_ERROR) 1490 aprint_error_dev(sc->sc_dev, "parity error\n"); 1491 1492 return 1; 1493 } 1494 1495 static int 1496 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1497 int async) 1498 { 1499 struct iwi_cmd_desc *desc; 1500 1501 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1502 1503 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1504 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1505 desc->type = type; 1506 desc->len = len; 1507 memcpy(desc->data, data, len); 1508 1509 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1510 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1511 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1512 1513 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1514 sc->cmdq.cur, type, len, async)); 1515 1516 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1517 1518 if (++sc->cmdq.queued == 1) 1519 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1520 1521 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1522 } 1523 1524 static void 1525 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1526 { 1527 struct iwi_ibssnode node; 1528 1529 /* write node information into NIC memory */ 1530 memset(&node, 0, sizeof node); 1531 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1532 1533 CSR_WRITE_REGION_1(sc, 1534 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1535 (uint8_t *)&node, sizeof node); 1536 } 1537 1538 static int 1539 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1540 int ac) 1541 { 1542 struct iwi_softc *sc = ifp->if_softc; 1543 struct ieee80211com *ic = &sc->sc_ic; 1544 struct iwi_node *in = (struct iwi_node *)ni; 1545 struct ieee80211_frame *wh; 1546 struct ieee80211_key *k; 1547 const struct chanAccParams *cap; 1548 struct iwi_tx_ring *txq = &sc->txq[ac]; 1549 struct iwi_tx_data *data; 1550 struct iwi_tx_desc *desc; 1551 struct mbuf *mnew; 1552 int error, hdrlen, i, noack = 0; 1553 1554 wh = mtod(m0, struct ieee80211_frame *); 1555 1556 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1557 hdrlen = sizeof (struct ieee80211_qosframe); 1558 cap = &ic->ic_wme.wme_chanParams; 1559 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1560 } else 1561 hdrlen = sizeof (struct ieee80211_frame); 1562 1563 /* 1564 * This is only used in IBSS mode where the firmware expect an index 1565 * in a h/w table instead of a destination address. 1566 */ 1567 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1568 in->in_station = iwi_alloc_unr(sc); 1569 1570 if (in->in_station == -1) { /* h/w table is full */ 1571 m_freem(m0); 1572 ieee80211_free_node(ni); 1573 ifp->if_oerrors++; 1574 return 0; 1575 } 1576 iwi_write_ibssnode(sc, in); 1577 } 1578 1579 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1580 k = ieee80211_crypto_encap(ic, ni, m0); 1581 if (k == NULL) { 1582 m_freem(m0); 1583 return ENOBUFS; 1584 } 1585 1586 /* packet header may have moved, reset our local pointer */ 1587 wh = mtod(m0, struct ieee80211_frame *); 1588 } 1589 1590 if (sc->sc_drvbpf != NULL) { 1591 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1592 1593 tap->wt_flags = 0; 1594 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1595 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1596 1597 bpf_ops->bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1598 } 1599 1600 data = &txq->data[txq->cur]; 1601 desc = &txq->desc[txq->cur]; 1602 1603 /* save and trim IEEE802.11 header */ 1604 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1605 m_adj(m0, hdrlen); 1606 1607 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1608 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1609 if (error != 0 && error != EFBIG) { 1610 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1611 error); 1612 m_freem(m0); 1613 return error; 1614 } 1615 if (error != 0) { 1616 /* too many fragments, linearize */ 1617 1618 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1619 if (mnew == NULL) { 1620 m_freem(m0); 1621 return ENOMEM; 1622 } 1623 1624 M_COPY_PKTHDR(mnew, m0); 1625 1626 /* If the data won't fit in the header, get a cluster */ 1627 if (m0->m_pkthdr.len > MHLEN) { 1628 MCLGET(mnew, M_DONTWAIT); 1629 if (!(mnew->m_flags & M_EXT)) { 1630 m_freem(m0); 1631 m_freem(mnew); 1632 return ENOMEM; 1633 } 1634 } 1635 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1636 m_freem(m0); 1637 mnew->m_len = mnew->m_pkthdr.len; 1638 m0 = mnew; 1639 1640 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1641 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1642 if (error != 0) { 1643 aprint_error_dev(sc->sc_dev, 1644 "could not map mbuf (error %d)\n", error); 1645 m_freem(m0); 1646 return error; 1647 } 1648 } 1649 1650 data->m = m0; 1651 data->ni = ni; 1652 1653 desc->hdr.type = IWI_HDR_TYPE_DATA; 1654 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1655 desc->station = 1656 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1657 desc->cmd = IWI_DATA_CMD_TX; 1658 desc->len = htole16(m0->m_pkthdr.len); 1659 desc->flags = 0; 1660 desc->xflags = 0; 1661 1662 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1663 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1664 1665 #if 0 1666 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1667 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1668 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1669 } else 1670 #endif 1671 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1672 1673 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1674 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1675 1676 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1677 desc->xflags |= IWI_DATA_XFLAG_QOS; 1678 1679 if (ic->ic_curmode == IEEE80211_MODE_11B) 1680 desc->xflags |= IWI_DATA_XFLAG_CCK; 1681 1682 desc->nseg = htole32(data->map->dm_nsegs); 1683 for (i = 0; i < data->map->dm_nsegs; i++) { 1684 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1685 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1686 } 1687 1688 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1689 txq->cur * IWI_TX_DESC_SIZE, 1690 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1691 1692 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1693 BUS_DMASYNC_PREWRITE); 1694 1695 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1696 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1697 1698 /* Inform firmware about this new packet */ 1699 txq->queued++; 1700 txq->cur = (txq->cur + 1) % txq->count; 1701 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1702 1703 return 0; 1704 } 1705 1706 static void 1707 iwi_start(struct ifnet *ifp) 1708 { 1709 struct iwi_softc *sc = ifp->if_softc; 1710 struct ieee80211com *ic = &sc->sc_ic; 1711 struct mbuf *m0; 1712 struct ether_header *eh; 1713 struct ieee80211_node *ni; 1714 int ac; 1715 1716 if (ic->ic_state != IEEE80211_S_RUN) 1717 return; 1718 1719 for (;;) { 1720 IF_DEQUEUE(&ifp->if_snd, m0); 1721 if (m0 == NULL) 1722 break; 1723 1724 if (m0->m_len < sizeof (struct ether_header) && 1725 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1726 ifp->if_oerrors++; 1727 continue; 1728 } 1729 1730 eh = mtod(m0, struct ether_header *); 1731 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1732 if (ni == NULL) { 1733 m_freem(m0); 1734 ifp->if_oerrors++; 1735 continue; 1736 } 1737 1738 /* classify mbuf so we can find which tx ring to use */ 1739 if (ieee80211_classify(ic, m0, ni) != 0) { 1740 m_freem(m0); 1741 ieee80211_free_node(ni); 1742 ifp->if_oerrors++; 1743 continue; 1744 } 1745 1746 /* no QoS encapsulation for EAPOL frames */ 1747 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1748 M_WME_GETAC(m0) : WME_AC_BE; 1749 1750 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1751 /* there is no place left in this ring */ 1752 IF_PREPEND(&ifp->if_snd, m0); 1753 ifp->if_flags |= IFF_OACTIVE; 1754 break; 1755 } 1756 1757 if (ifp->if_bpf != NULL) 1758 bpf_ops->bpf_mtap(ifp->if_bpf, m0); 1759 1760 m0 = ieee80211_encap(ic, m0, ni); 1761 if (m0 == NULL) { 1762 ieee80211_free_node(ni); 1763 ifp->if_oerrors++; 1764 continue; 1765 } 1766 1767 if (ic->ic_rawbpf != NULL) 1768 bpf_ops->bpf_mtap(ic->ic_rawbpf, m0); 1769 1770 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1771 ieee80211_free_node(ni); 1772 ifp->if_oerrors++; 1773 break; 1774 } 1775 1776 /* start watchdog timer */ 1777 sc->sc_tx_timer = 5; 1778 ifp->if_timer = 1; 1779 } 1780 } 1781 1782 static void 1783 iwi_watchdog(struct ifnet *ifp) 1784 { 1785 struct iwi_softc *sc = ifp->if_softc; 1786 1787 ifp->if_timer = 0; 1788 1789 if (sc->sc_tx_timer > 0) { 1790 if (--sc->sc_tx_timer == 0) { 1791 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1792 ifp->if_oerrors++; 1793 ifp->if_flags &= ~IFF_UP; 1794 iwi_stop(ifp, 1); 1795 return; 1796 } 1797 ifp->if_timer = 1; 1798 } 1799 1800 ieee80211_watchdog(&sc->sc_ic); 1801 } 1802 1803 static int 1804 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1805 { 1806 uint32_t size, buf[128]; 1807 1808 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1809 memset(buf, 0, sizeof buf); 1810 return copyout(buf, tbl, sizeof buf); 1811 } 1812 1813 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1814 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1815 1816 return copyout(buf, tbl, sizeof buf); 1817 } 1818 1819 static int 1820 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1821 { 1822 #define IS_RUNNING(ifp) \ 1823 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1824 1825 struct iwi_softc *sc = ifp->if_softc; 1826 struct ieee80211com *ic = &sc->sc_ic; 1827 struct ifreq *ifr = (struct ifreq *)data; 1828 int s, error = 0; 1829 int val; 1830 1831 s = splnet(); 1832 1833 switch (cmd) { 1834 case SIOCSIFFLAGS: 1835 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1836 break; 1837 if (ifp->if_flags & IFF_UP) { 1838 if (!(ifp->if_flags & IFF_RUNNING)) 1839 iwi_init(ifp); 1840 } else { 1841 if (ifp->if_flags & IFF_RUNNING) 1842 iwi_stop(ifp, 1); 1843 } 1844 break; 1845 1846 case SIOCADDMULTI: 1847 case SIOCDELMULTI: 1848 /* XXX no h/w multicast filter? --dyoung */ 1849 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1850 /* setup multicast filter, etc */ 1851 error = 0; 1852 } 1853 break; 1854 1855 case SIOCGTABLE0: 1856 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1857 break; 1858 1859 case SIOCGRADIO: 1860 val = !iwi_getrfkill(sc); 1861 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1862 break; 1863 1864 case SIOCSIFMEDIA: 1865 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1866 sc->sc_fwname = "ipw2200-ibss.fw"; 1867 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1868 sc->sc_fwname = "ipw2200-sniffer.fw"; 1869 } else { 1870 sc->sc_fwname = "ipw2200-bss.fw"; 1871 } 1872 error = iwi_cache_firmware(sc); 1873 if (error) 1874 break; 1875 /* FALLTRHOUGH */ 1876 1877 default: 1878 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1879 1880 if (error == ENETRESET) { 1881 if (IS_RUNNING(ifp) && 1882 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1883 iwi_init(ifp); 1884 error = 0; 1885 } 1886 } 1887 1888 splx(s); 1889 return error; 1890 #undef IS_RUNNING 1891 } 1892 1893 static void 1894 iwi_stop_master(struct iwi_softc *sc) 1895 { 1896 int ntries; 1897 1898 /* Disable interrupts */ 1899 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1900 1901 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1902 for (ntries = 0; ntries < 5; ntries++) { 1903 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1904 break; 1905 DELAY(10); 1906 } 1907 if (ntries == 5) 1908 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1909 1910 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1911 IWI_RST_PRINCETON_RESET); 1912 1913 sc->flags &= ~IWI_FLAG_FW_INITED; 1914 } 1915 1916 static int 1917 iwi_reset(struct iwi_softc *sc) 1918 { 1919 int i, ntries; 1920 1921 iwi_stop_master(sc); 1922 1923 /* Move adapter to D0 state */ 1924 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1925 IWI_CTL_INIT); 1926 1927 /* Initialize Phase-Locked Level (PLL) */ 1928 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1929 1930 /* Wait for clock stabilization */ 1931 for (ntries = 0; ntries < 1000; ntries++) { 1932 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1933 break; 1934 DELAY(200); 1935 } 1936 if (ntries == 1000) { 1937 aprint_error_dev(sc->sc_dev, 1938 "timeout waiting for clock stabilization\n"); 1939 return ETIMEDOUT; 1940 } 1941 1942 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1943 IWI_RST_SW_RESET); 1944 1945 DELAY(10); 1946 1947 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1948 IWI_CTL_INIT); 1949 1950 /* Clear NIC memory */ 1951 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1952 for (i = 0; i < 0xc000; i++) 1953 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1954 1955 return 0; 1956 } 1957 1958 static int 1959 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1960 { 1961 uint16_t *w; 1962 int ntries, i; 1963 1964 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1965 IWI_RST_STOP_MASTER); 1966 for (ntries = 0; ntries < 5; ntries++) { 1967 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1968 break; 1969 DELAY(10); 1970 } 1971 if (ntries == 5) { 1972 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1973 return ETIMEDOUT; 1974 } 1975 1976 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1977 DELAY(5000); 1978 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1979 ~IWI_RST_PRINCETON_RESET); 1980 DELAY(5000); 1981 MEM_WRITE_4(sc, 0x3000e0, 0); 1982 DELAY(1000); 1983 MEM_WRITE_4(sc, 0x300004, 1); 1984 DELAY(1000); 1985 MEM_WRITE_4(sc, 0x300004, 0); 1986 DELAY(1000); 1987 MEM_WRITE_1(sc, 0x200000, 0x00); 1988 MEM_WRITE_1(sc, 0x200000, 0x40); 1989 DELAY(1000); 1990 1991 /* Adapter is buggy, we must set the address for each word */ 1992 for (w = uc; size > 0; w++, size -= 2) 1993 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1994 1995 MEM_WRITE_1(sc, 0x200000, 0x00); 1996 MEM_WRITE_1(sc, 0x200000, 0x80); 1997 1998 /* Wait until we get a response in the uc queue */ 1999 for (ntries = 0; ntries < 100; ntries++) { 2000 if (MEM_READ_1(sc, 0x200000) & 1) 2001 break; 2002 DELAY(100); 2003 } 2004 if (ntries == 100) { 2005 aprint_error_dev(sc->sc_dev, 2006 "timeout waiting for ucode to initialize\n"); 2007 return ETIMEDOUT; 2008 } 2009 2010 /* Empty the uc queue or the firmware will not initialize properly */ 2011 for (i = 0; i < 7; i++) 2012 MEM_READ_4(sc, 0x200004); 2013 2014 MEM_WRITE_1(sc, 0x200000, 0x00); 2015 2016 return 0; 2017 } 2018 2019 /* macro to handle unaligned little endian data in firmware image */ 2020 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2021 static int 2022 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2023 { 2024 bus_dmamap_t map; 2025 u_char *p, *end; 2026 uint32_t sentinel, ctl, sum; 2027 uint32_t cs, sl, cd, cl; 2028 int ntries, nsegs, error; 2029 int sn; 2030 2031 nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; 2032 2033 /* Create a DMA map for the firmware image */ 2034 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2035 BUS_DMA_NOWAIT, &map); 2036 if (error != 0) { 2037 aprint_error_dev(sc->sc_dev, 2038 "could not create firmware DMA map\n"); 2039 map = NULL; 2040 goto fail1; 2041 } 2042 2043 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2044 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2045 if (error != 0) { 2046 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2047 error); 2048 goto fail2; 2049 } 2050 2051 /* Make sure the adapter will get up-to-date values */ 2052 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2053 2054 /* Tell the adapter where the command blocks are stored */ 2055 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2056 2057 /* 2058 * Store command blocks into adapter's internal memory using register 2059 * indirections. The adapter will read the firmware image through DMA 2060 * using information stored in command blocks. 2061 */ 2062 p = fw; 2063 end = p + size; 2064 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2065 2066 sn = 0; 2067 sl = cl = 0; 2068 cs = cd = 0; 2069 while (p < end) { 2070 if (sl == 0) { 2071 cs = map->dm_segs[sn].ds_addr; 2072 sl = map->dm_segs[sn].ds_len; 2073 sn++; 2074 } 2075 if (cl == 0) { 2076 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2077 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2078 } 2079 while (sl > 0 && cl > 0) { 2080 int len = min(cl, sl); 2081 2082 sl -= len; 2083 cl -= len; 2084 p += len; 2085 2086 while (len > 0) { 2087 int mlen = min(len, IWI_CB_MAXDATALEN); 2088 2089 ctl = IWI_CB_DEFAULT_CTL | mlen; 2090 sum = ctl ^ cs ^ cd; 2091 2092 /* Write a command block */ 2093 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2094 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2095 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2096 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2097 2098 cs += mlen; 2099 cd += mlen; 2100 len -= mlen; 2101 } 2102 } 2103 } 2104 2105 /* Write a fictive final command block (sentinel) */ 2106 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2107 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2108 2109 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2110 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2111 2112 /* Tell the adapter to start processing command blocks */ 2113 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2114 2115 /* Wait until the adapter has processed all command blocks */ 2116 for (ntries = 0; ntries < 400; ntries++) { 2117 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2118 break; 2119 DELAY(100); 2120 } 2121 if (ntries == 400) { 2122 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2123 error = ETIMEDOUT; 2124 goto fail3; 2125 } 2126 2127 /* We're done with command blocks processing */ 2128 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2129 2130 /* Allow interrupts so we know when the firmware is inited */ 2131 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2132 2133 /* Tell the adapter to initialize the firmware */ 2134 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2135 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2136 IWI_CTL_ALLOW_STANDBY); 2137 2138 /* Wait at most one second for firmware initialization to complete */ 2139 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2140 aprint_error_dev(sc->sc_dev, 2141 "timeout waiting for firmware initialization to complete\n"); 2142 goto fail3; 2143 } 2144 2145 fail3: 2146 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2147 bus_dmamap_unload(sc->sc_dmat, map); 2148 fail2: 2149 if (map != NULL) 2150 bus_dmamap_destroy(sc->sc_dmat, map); 2151 2152 fail1: 2153 return error; 2154 } 2155 2156 /* 2157 * Store firmware into kernel memory so we can download it when we need to, 2158 * e.g when the adapter wakes up from suspend mode. 2159 */ 2160 static int 2161 iwi_cache_firmware(struct iwi_softc *sc) 2162 { 2163 struct iwi_firmware *kfw = &sc->fw; 2164 firmware_handle_t fwh; 2165 const struct iwi_firmware_hdr *hdr; 2166 off_t size; 2167 char *fw; 2168 int error; 2169 2170 if (iwi_accept_eula == 0) { 2171 aprint_error_dev(sc->sc_dev, 2172 "EULA not accepted; please see the iwi(4) man page.\n"); 2173 return EPERM; 2174 } 2175 2176 iwi_free_firmware(sc); 2177 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2178 if (error != 0) { 2179 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2180 goto fail1; 2181 } 2182 2183 size = firmware_get_size(fwh); 2184 if (size < sizeof(struct iwi_firmware_hdr)) { 2185 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2186 sc->sc_fwname); 2187 error = EIO; 2188 goto fail1; 2189 } 2190 2191 sc->sc_blob = firmware_malloc(size); 2192 if (sc->sc_blob == NULL) { 2193 error = ENOMEM; 2194 firmware_close(fwh); 2195 goto fail1; 2196 } 2197 2198 error = firmware_read(fwh, 0, sc->sc_blob, size); 2199 firmware_close(fwh); 2200 if (error != 0) 2201 goto fail2; 2202 2203 2204 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2205 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2206 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2207 sc->sc_fwname); 2208 error = EIO; 2209 goto fail2; 2210 } 2211 2212 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2213 DPRINTF(("firmware version = %d\n", le32toh(hdr->version))); 2214 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2215 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2216 aprint_error_dev(sc->sc_dev, 2217 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2218 IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2219 IWI_FW_GET_MINOR(le32toh(hdr->version)), 2220 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2221 error = EIO; 2222 goto fail2; 2223 } 2224 2225 kfw->boot_size = hdr->bsize; 2226 kfw->ucode_size = hdr->usize; 2227 kfw->main_size = hdr->fsize; 2228 2229 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2230 kfw->boot = fw; 2231 fw += kfw->boot_size; 2232 kfw->ucode = fw; 2233 fw += kfw->ucode_size; 2234 kfw->main = fw; 2235 2236 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2237 kfw->boot, kfw->ucode, kfw->main)); 2238 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2239 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2240 2241 sc->flags |= IWI_FLAG_FW_CACHED; 2242 2243 return 0; 2244 2245 2246 fail2: firmware_free(sc->sc_blob, 0); 2247 fail1: 2248 return error; 2249 } 2250 2251 static void 2252 iwi_free_firmware(struct iwi_softc *sc) 2253 { 2254 2255 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2256 return; 2257 2258 firmware_free(sc->sc_blob, 0); 2259 2260 sc->flags &= ~IWI_FLAG_FW_CACHED; 2261 } 2262 2263 static int 2264 iwi_config(struct iwi_softc *sc) 2265 { 2266 struct ieee80211com *ic = &sc->sc_ic; 2267 struct ifnet *ifp = &sc->sc_if; 2268 struct iwi_configuration config; 2269 struct iwi_rateset rs; 2270 struct iwi_txpower power; 2271 struct ieee80211_key *wk; 2272 struct iwi_wep_key wepkey; 2273 uint32_t data; 2274 int error, nchan, i; 2275 2276 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2277 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2278 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2279 IEEE80211_ADDR_LEN, 0); 2280 if (error != 0) 2281 return error; 2282 2283 memset(&config, 0, sizeof config); 2284 config.bluetooth_coexistence = sc->bluetooth; 2285 config.antenna = sc->antenna; 2286 config.silence_threshold = 0x1e; 2287 config.multicast_enabled = 1; 2288 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2289 config.disable_unicast_decryption = 1; 2290 config.disable_multicast_decryption = 1; 2291 DPRINTF(("Configuring adapter\n")); 2292 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2293 0); 2294 if (error != 0) 2295 return error; 2296 2297 data = htole32(IWI_POWER_MODE_CAM); 2298 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2299 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2300 if (error != 0) 2301 return error; 2302 2303 data = htole32(ic->ic_rtsthreshold); 2304 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2305 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2306 if (error != 0) 2307 return error; 2308 2309 data = htole32(ic->ic_fragthreshold); 2310 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2311 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2312 if (error != 0) 2313 return error; 2314 2315 /* 2316 * Set default Tx power for 802.11b/g and 802.11a channels. 2317 */ 2318 nchan = 0; 2319 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2320 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2321 continue; 2322 power.chan[nchan].chan = i; 2323 power.chan[nchan].power = IWI_TXPOWER_MAX; 2324 nchan++; 2325 } 2326 power.nchan = nchan; 2327 2328 power.mode = IWI_MODE_11G; 2329 DPRINTF(("Setting .11g channels tx power\n")); 2330 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2331 if (error != 0) 2332 return error; 2333 2334 power.mode = IWI_MODE_11B; 2335 DPRINTF(("Setting .11b channels tx power\n")); 2336 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2337 if (error != 0) 2338 return error; 2339 2340 nchan = 0; 2341 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2342 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2343 continue; 2344 power.chan[nchan].chan = i; 2345 power.chan[nchan].power = IWI_TXPOWER_MAX; 2346 nchan++; 2347 } 2348 power.nchan = nchan; 2349 2350 if (nchan > 0) { /* 2915ABG only */ 2351 power.mode = IWI_MODE_11A; 2352 DPRINTF(("Setting .11a channels tx power\n")); 2353 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2354 0); 2355 if (error != 0) 2356 return error; 2357 } 2358 2359 rs.mode = IWI_MODE_11G; 2360 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2361 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2362 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2363 rs.nrates); 2364 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2365 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2366 if (error != 0) 2367 return error; 2368 2369 rs.mode = IWI_MODE_11A; 2370 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2371 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2372 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2373 rs.nrates); 2374 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2375 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2376 if (error != 0) 2377 return error; 2378 2379 /* if we have a desired ESSID, set it now */ 2380 if (ic->ic_des_esslen != 0) { 2381 #ifdef IWI_DEBUG 2382 if (iwi_debug > 0) { 2383 printf("Setting desired ESSID to "); 2384 ieee80211_print_essid(ic->ic_des_essid, 2385 ic->ic_des_esslen); 2386 printf("\n"); 2387 } 2388 #endif 2389 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2390 ic->ic_des_esslen, 0); 2391 if (error != 0) 2392 return error; 2393 } 2394 2395 data = htole32(arc4random()); 2396 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2397 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2398 if (error != 0) 2399 return error; 2400 2401 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2402 /* XXX iwi_setwepkeys? */ 2403 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2404 wk = &ic->ic_crypto.cs_nw_keys[i]; 2405 2406 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2407 wepkey.idx = i; 2408 wepkey.len = wk->wk_keylen; 2409 memset(wepkey.key, 0, sizeof wepkey.key); 2410 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2411 DPRINTF(("Setting wep key index %u len %u\n", 2412 wepkey.idx, wepkey.len)); 2413 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2414 sizeof wepkey, 0); 2415 if (error != 0) 2416 return error; 2417 } 2418 } 2419 2420 /* Enable adapter */ 2421 DPRINTF(("Enabling adapter\n")); 2422 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2423 } 2424 2425 static int 2426 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2427 { 2428 struct ieee80211com *ic = &sc->sc_ic; 2429 struct iwi_scan_v2 scan; 2430 2431 (void)memset(&scan, 0, sizeof scan); 2432 2433 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2434 scan.channels[0] = 1 | 2435 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2436 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2437 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2438 2439 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2440 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2441 } 2442 2443 static int 2444 iwi_scan(struct iwi_softc *sc) 2445 { 2446 struct ieee80211com *ic = &sc->sc_ic; 2447 struct iwi_scan_v2 scan; 2448 uint32_t type; 2449 uint8_t *p; 2450 int i, count, idx; 2451 2452 (void)memset(&scan, 0, sizeof scan); 2453 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2454 htole16(sc->dwelltime); 2455 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2456 htole16(sc->dwelltime); 2457 2458 /* tell the firmware about the desired essid */ 2459 if (ic->ic_des_esslen) { 2460 int error; 2461 2462 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2463 __func__, ic->ic_des_essid)); 2464 2465 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2466 ic->ic_des_essid, ic->ic_des_esslen, 1); 2467 if (error) 2468 return error; 2469 2470 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2471 } else { 2472 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2473 } 2474 2475 p = &scan.channels[0]; 2476 count = idx = 0; 2477 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2478 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2479 isset(ic->ic_chan_active, i)) { 2480 *++p = i; 2481 count++; 2482 idx++; 2483 iwi_scan_type_set(scan, idx, type); 2484 } 2485 } 2486 if (count) { 2487 *(p - count) = IWI_CHAN_5GHZ | count; 2488 p++; 2489 } 2490 2491 count = 0; 2492 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2493 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2494 isset(ic->ic_chan_active, i)) { 2495 *++p = i; 2496 count++; 2497 idx++; 2498 iwi_scan_type_set(scan, idx, type); 2499 } 2500 } 2501 *(p - count) = IWI_CHAN_2GHZ | count; 2502 2503 DPRINTF(("Start scanning\n")); 2504 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2505 } 2506 2507 static int 2508 iwi_auth_and_assoc(struct iwi_softc *sc) 2509 { 2510 struct ieee80211com *ic = &sc->sc_ic; 2511 struct ieee80211_node *ni = ic->ic_bss; 2512 struct ifnet *ifp = &sc->sc_if; 2513 struct ieee80211_wme_info wme; 2514 struct iwi_configuration config; 2515 struct iwi_associate assoc; 2516 struct iwi_rateset rs; 2517 uint16_t capinfo; 2518 uint32_t data; 2519 int error; 2520 2521 memset(&config, 0, sizeof config); 2522 config.bluetooth_coexistence = sc->bluetooth; 2523 config.antenna = sc->antenna; 2524 config.multicast_enabled = 1; 2525 config.silence_threshold = 0x1e; 2526 if (ic->ic_curmode == IEEE80211_MODE_11G) 2527 config.use_protection = 1; 2528 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2529 config.disable_unicast_decryption = 1; 2530 config.disable_multicast_decryption = 1; 2531 2532 DPRINTF(("Configuring adapter\n")); 2533 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2534 sizeof config, 1); 2535 if (error != 0) 2536 return error; 2537 2538 #ifdef IWI_DEBUG 2539 if (iwi_debug > 0) { 2540 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2541 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2542 aprint_debug("\n"); 2543 } 2544 #endif 2545 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2546 if (error != 0) 2547 return error; 2548 2549 /* the rate set has already been "negotiated" */ 2550 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2551 IWI_MODE_11G; 2552 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2553 rs.nrates = ni->ni_rates.rs_nrates; 2554 2555 if (rs.nrates > IWI_RATESET_SIZE) { 2556 DPRINTF(("Truncating negotiated rate set from %u\n", 2557 rs.nrates)); 2558 rs.nrates = IWI_RATESET_SIZE; 2559 } 2560 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2561 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2562 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2563 if (error != 0) 2564 return error; 2565 2566 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2567 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2568 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2569 wme.wme_oui[0] = 0x00; 2570 wme.wme_oui[1] = 0x50; 2571 wme.wme_oui[2] = 0xf2; 2572 wme.wme_type = WME_OUI_TYPE; 2573 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2574 wme.wme_version = WME_VERSION; 2575 wme.wme_info = 0; 2576 2577 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2578 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2579 if (error != 0) 2580 return error; 2581 } 2582 2583 if (ic->ic_opt_ie != NULL) { 2584 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2585 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2586 ic->ic_opt_ie_len, 1); 2587 if (error != 0) 2588 return error; 2589 } 2590 data = htole32(ni->ni_rssi); 2591 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2592 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2593 if (error != 0) 2594 return error; 2595 2596 memset(&assoc, 0, sizeof assoc); 2597 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2598 assoc.mode = IWI_MODE_11A; 2599 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2600 assoc.mode = IWI_MODE_11G; 2601 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2602 assoc.mode = IWI_MODE_11B; 2603 2604 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2605 2606 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2607 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2608 2609 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2610 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2611 2612 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2613 assoc.policy |= htole16(IWI_POLICY_WME); 2614 if (ic->ic_flags & IEEE80211_F_WPA) 2615 assoc.policy |= htole16(IWI_POLICY_WPA); 2616 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2617 assoc.type = IWI_HC_IBSS_START; 2618 else 2619 assoc.type = IWI_HC_ASSOC; 2620 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2621 2622 if (ic->ic_opmode == IEEE80211_M_IBSS) 2623 capinfo = IEEE80211_CAPINFO_IBSS; 2624 else 2625 capinfo = IEEE80211_CAPINFO_ESS; 2626 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2627 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2628 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2629 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2630 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2631 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2632 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2633 assoc.capinfo = htole16(capinfo); 2634 2635 assoc.lintval = htole16(ic->ic_lintval); 2636 assoc.intval = htole16(ni->ni_intval); 2637 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2638 if (ic->ic_opmode == IEEE80211_M_IBSS) 2639 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2640 else 2641 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2642 2643 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2644 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2645 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2646 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2647 assoc.chan, le16toh(assoc.policy), assoc.auth, 2648 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2649 le16toh(assoc.intval))); 2650 2651 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2652 } 2653 2654 static int 2655 iwi_init(struct ifnet *ifp) 2656 { 2657 struct iwi_softc *sc = ifp->if_softc; 2658 struct ieee80211com *ic = &sc->sc_ic; 2659 struct iwi_firmware *fw = &sc->fw; 2660 int i, error; 2661 2662 /* exit immediately if firmware has not been ioctl'd */ 2663 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2664 if ((error = iwi_cache_firmware(sc)) != 0) { 2665 aprint_error_dev(sc->sc_dev, 2666 "could not cache the firmware\n"); 2667 goto fail; 2668 } 2669 } 2670 2671 iwi_stop(ifp, 0); 2672 2673 if ((error = iwi_reset(sc)) != 0) { 2674 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2675 goto fail; 2676 } 2677 2678 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2679 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2680 goto fail; 2681 } 2682 2683 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2684 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2685 goto fail; 2686 } 2687 2688 iwi_stop_master(sc); 2689 2690 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2691 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2692 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2693 2694 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2695 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2696 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2697 2698 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2699 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2700 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2701 2702 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2703 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2704 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2705 2706 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2707 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2708 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2709 2710 for (i = 0; i < sc->rxq.count; i++) 2711 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2712 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2713 2714 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2715 2716 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2717 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2718 goto fail; 2719 } 2720 2721 sc->flags |= IWI_FLAG_FW_INITED; 2722 2723 if ((error = iwi_config(sc)) != 0) { 2724 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2725 goto fail; 2726 } 2727 2728 ic->ic_state = IEEE80211_S_INIT; 2729 2730 ifp->if_flags &= ~IFF_OACTIVE; 2731 ifp->if_flags |= IFF_RUNNING; 2732 2733 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2734 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2735 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2736 } else 2737 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2738 2739 return 0; 2740 2741 fail: ifp->if_flags &= ~IFF_UP; 2742 iwi_stop(ifp, 0); 2743 2744 return error; 2745 } 2746 2747 2748 /* 2749 * Return whether or not the radio is enabled in hardware 2750 * (i.e. the rfkill switch is "off"). 2751 */ 2752 static int 2753 iwi_getrfkill(struct iwi_softc *sc) 2754 { 2755 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2756 } 2757 2758 static int 2759 iwi_sysctl_radio(SYSCTLFN_ARGS) 2760 { 2761 struct sysctlnode node; 2762 struct iwi_softc *sc; 2763 int val, error; 2764 2765 node = *rnode; 2766 sc = (struct iwi_softc *)node.sysctl_data; 2767 2768 val = !iwi_getrfkill(sc); 2769 2770 node.sysctl_data = &val; 2771 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2772 2773 if (error || newp == NULL) 2774 return error; 2775 2776 return 0; 2777 } 2778 2779 #ifdef IWI_DEBUG 2780 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2781 { 2782 int rc; 2783 const struct sysctlnode *rnode; 2784 const struct sysctlnode *cnode; 2785 2786 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2787 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2788 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2789 goto err; 2790 2791 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2792 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2793 SYSCTL_DESCR("iwi global controls"), 2794 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2795 goto err; 2796 2797 /* control debugging printfs */ 2798 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2799 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2800 "debug", SYSCTL_DESCR("Enable debugging output"), 2801 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2802 goto err; 2803 2804 return; 2805 err: 2806 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2807 } 2808 2809 #endif /* IWI_DEBUG */ 2810 2811 /* 2812 * Add sysctl knobs. 2813 */ 2814 static void 2815 iwi_sysctlattach(struct iwi_softc *sc) 2816 { 2817 int rc; 2818 const struct sysctlnode *rnode; 2819 const struct sysctlnode *cnode; 2820 2821 struct sysctllog **clog = &sc->sc_sysctllog; 2822 2823 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2824 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2825 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2826 goto err; 2827 2828 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2829 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2830 SYSCTL_DESCR("iwi controls and statistics"), 2831 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2832 goto err; 2833 2834 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2835 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2836 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2837 iwi_sysctl_radio, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2838 goto err; 2839 2840 sc->dwelltime = 100; 2841 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2842 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2843 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2844 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2845 goto err; 2846 2847 sc->bluetooth = 0; 2848 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2849 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2850 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2851 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2852 goto err; 2853 2854 sc->antenna = IWI_ANTENNA_AUTO; 2855 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2856 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2857 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2858 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2859 goto err; 2860 2861 return; 2862 err: 2863 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2864 } 2865 2866 static void 2867 iwi_stop(struct ifnet *ifp, int disable) 2868 { 2869 struct iwi_softc *sc = ifp->if_softc; 2870 struct ieee80211com *ic = &sc->sc_ic; 2871 2872 IWI_LED_OFF(sc); 2873 2874 iwi_stop_master(sc); 2875 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2876 2877 /* reset rings */ 2878 iwi_reset_cmd_ring(sc, &sc->cmdq); 2879 iwi_reset_tx_ring(sc, &sc->txq[0]); 2880 iwi_reset_tx_ring(sc, &sc->txq[1]); 2881 iwi_reset_tx_ring(sc, &sc->txq[2]); 2882 iwi_reset_tx_ring(sc, &sc->txq[3]); 2883 iwi_reset_rx_ring(sc, &sc->rxq); 2884 2885 ifp->if_timer = 0; 2886 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2887 2888 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2889 } 2890 2891 static void 2892 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2893 { 2894 uint32_t val; 2895 2896 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2897 2898 switch (sc->nictype) { 2899 case 1: 2900 /* special NIC type: reversed leds */ 2901 if (state == IWI_LED_ACTIVITY) { 2902 state &= ~IWI_LED_ACTIVITY; 2903 state |= IWI_LED_ASSOCIATED; 2904 } else if (state == IWI_LED_ASSOCIATED) { 2905 state &= ~IWI_LED_ASSOCIATED; 2906 state |= IWI_LED_ACTIVITY; 2907 } 2908 /* and ignore toggle effect */ 2909 val |= state; 2910 break; 2911 case 0: 2912 case 2: 2913 case 3: 2914 case 4: 2915 val = (toggle && (val & state)) ? val & ~state : val | state; 2916 break; 2917 default: 2918 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2919 sc->nictype); 2920 return; 2921 break; 2922 } 2923 2924 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2925 2926 return; 2927 } 2928 2929 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2930 { 2931 const struct sysctlnode *rnode; 2932 const struct sysctlnode *cnode; 2933 2934 sysctl_createv(NULL, 0, NULL, &rnode, 2935 CTLFLAG_PERMANENT, 2936 CTLTYPE_NODE, "hw", 2937 NULL, 2938 NULL, 0, 2939 NULL, 0, 2940 CTL_HW, CTL_EOL); 2941 2942 sysctl_createv(NULL, 0, &rnode, &rnode, 2943 CTLFLAG_PERMANENT, 2944 CTLTYPE_NODE, "iwi", 2945 NULL, 2946 NULL, 0, 2947 NULL, 0, 2948 CTL_CREATE, CTL_EOL); 2949 2950 sysctl_createv(NULL, 0, &rnode, &cnode, 2951 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2952 CTLTYPE_INT, "accept_eula", 2953 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2954 NULL, 0, 2955 &iwi_accept_eula, sizeof(iwi_accept_eula), 2956 CTL_CREATE, CTL_EOL); 2957 } 2958