1 /* $NetBSD: if_iwi.c,v 1.78 2009/01/09 21:14:36 jmcneill 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 1.78 2009/01/09 21:14:36 jmcneill 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 #include "bpfilter.h" 39 40 #include <sys/param.h> 41 #include <sys/sockio.h> 42 #include <sys/sysctl.h> 43 #include <sys/mbuf.h> 44 #include <sys/kernel.h> 45 #include <sys/socket.h> 46 #include <sys/systm.h> 47 #include <sys/malloc.h> 48 #include <sys/conf.h> 49 #include <sys/kauth.h> 50 51 #include <sys/bus.h> 52 #include <machine/endian.h> 53 #include <sys/intr.h> 54 55 #include <dev/firmload.h> 56 57 #include <dev/pci/pcireg.h> 58 #include <dev/pci/pcivar.h> 59 #include <dev/pci/pcidevs.h> 60 61 #if NBPFILTER > 0 62 #include <net/bpf.h> 63 #endif 64 #include <net/if.h> 65 #include <net/if_arp.h> 66 #include <net/if_dl.h> 67 #include <net/if_ether.h> 68 #include <net/if_media.h> 69 #include <net/if_types.h> 70 71 #include <net80211/ieee80211_var.h> 72 #include <net80211/ieee80211_radiotap.h> 73 74 #include <netinet/in.h> 75 #include <netinet/in_systm.h> 76 #include <netinet/in_var.h> 77 #include <netinet/ip.h> 78 79 #include <crypto/arc4/arc4.h> 80 81 #include <dev/pci/if_iwireg.h> 82 #include <dev/pci/if_iwivar.h> 83 84 #ifdef IWI_DEBUG 85 #define DPRINTF(x) if (iwi_debug > 0) printf x 86 #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x 87 int iwi_debug = 4; 88 #else 89 #define DPRINTF(x) 90 #define DPRINTFN(n, x) 91 #endif 92 93 /* Permit loading the Intel firmware */ 94 static int iwi_accept_eula; 95 96 static int iwi_match(device_t, struct cfdata *, void *); 97 static void iwi_attach(device_t, device_t, void *); 98 static int iwi_detach(device_t, int); 99 100 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 101 int); 102 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 103 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 104 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 105 int, bus_addr_t, bus_size_t); 106 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 107 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 108 static struct mbuf * 109 iwi_alloc_rx_buf(struct iwi_softc *sc); 110 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 111 int); 112 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 113 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 114 115 static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); 116 static void iwi_node_free(struct ieee80211_node *); 117 118 static int iwi_cvtrate(int); 119 static int iwi_media_change(struct ifnet *); 120 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 121 static int iwi_wme_update(struct ieee80211com *); 122 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 123 static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 124 static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 125 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 126 struct iwi_frame *); 127 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 128 static void iwi_cmd_intr(struct iwi_softc *); 129 static void iwi_rx_intr(struct iwi_softc *); 130 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 131 static int iwi_intr(void *); 132 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 133 static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); 134 static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, 135 int); 136 static void iwi_start(struct ifnet *); 137 static void iwi_watchdog(struct ifnet *); 138 139 static int iwi_alloc_unr(struct iwi_softc *); 140 static void iwi_free_unr(struct iwi_softc *, int); 141 142 static int iwi_get_table0(struct iwi_softc *, uint32_t *); 143 144 static int iwi_ioctl(struct ifnet *, u_long, void *); 145 static void iwi_stop_master(struct iwi_softc *); 146 static int iwi_reset(struct iwi_softc *); 147 static int iwi_load_ucode(struct iwi_softc *, void *, int); 148 static int iwi_load_firmware(struct iwi_softc *, void *, int); 149 static int iwi_cache_firmware(struct iwi_softc *); 150 static void iwi_free_firmware(struct iwi_softc *); 151 static int iwi_config(struct iwi_softc *); 152 static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 153 static int iwi_scan(struct iwi_softc *); 154 static int iwi_auth_and_assoc(struct iwi_softc *); 155 static int iwi_init(struct ifnet *); 156 static void iwi_stop(struct ifnet *, int); 157 static int iwi_getrfkill(struct iwi_softc *); 158 static void iwi_led_set(struct iwi_softc *, uint32_t, int); 159 static void iwi_sysctlattach(struct iwi_softc *); 160 161 /* 162 * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 163 */ 164 static const struct ieee80211_rateset iwi_rateset_11a = 165 { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 166 167 static const struct ieee80211_rateset iwi_rateset_11b = 168 { 4, { 2, 4, 11, 22 } }; 169 170 static const struct ieee80211_rateset iwi_rateset_11g = 171 { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 172 173 static inline uint8_t 174 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 175 { 176 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 177 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 178 } 179 180 static inline uint32_t 181 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 182 { 183 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 184 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 185 } 186 187 CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, 188 iwi_detach, NULL); 189 190 static int 191 iwi_match(device_t parent, struct cfdata *match, void *aux) 192 { 193 struct pci_attach_args *pa = aux; 194 195 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 196 return 0; 197 198 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || 199 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || 200 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 201 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) 202 return 1; 203 204 return 0; 205 } 206 207 /* Base Address Register */ 208 #define IWI_PCI_BAR0 0x10 209 210 static void 211 iwi_attach(device_t parent, device_t self, void *aux) 212 { 213 struct iwi_softc *sc = device_private(self); 214 struct ieee80211com *ic = &sc->sc_ic; 215 struct ifnet *ifp = &sc->sc_if; 216 struct pci_attach_args *pa = aux; 217 const char *intrstr; 218 char devinfo[256]; 219 bus_space_tag_t memt; 220 bus_space_handle_t memh; 221 pci_intr_handle_t ih; 222 pcireg_t data; 223 uint16_t val; 224 int error, revision, i; 225 226 sc->sc_dev = self; 227 sc->sc_pct = pa->pa_pc; 228 sc->sc_pcitag = pa->pa_tag; 229 230 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof devinfo); 231 revision = PCI_REVISION(pa->pa_class); 232 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 233 234 /* clear unit numbers allocated to IBSS */ 235 sc->sc_unr = 0; 236 237 /* power up chip */ 238 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 239 NULL)) && error != EOPNOTSUPP) { 240 aprint_error_dev(self, "cannot activate %d\n", error); 241 return; 242 } 243 244 /* enable bus-mastering */ 245 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 246 data |= PCI_COMMAND_MASTER_ENABLE; 247 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 248 249 /* map the register window */ 250 error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 251 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); 252 if (error != 0) { 253 aprint_error_dev(self, "could not map memory space\n"); 254 return; 255 } 256 257 sc->sc_st = memt; 258 sc->sc_sh = memh; 259 sc->sc_dmat = pa->pa_dmat; 260 261 /* disable interrupts */ 262 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 263 264 if (pci_intr_map(pa, &ih) != 0) { 265 aprint_error_dev(self, "could not map interrupt\n"); 266 return; 267 } 268 269 intrstr = pci_intr_string(sc->sc_pct, ih); 270 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); 271 if (sc->sc_ih == NULL) { 272 aprint_error_dev(self, "could not establish interrupt"); 273 if (intrstr != NULL) 274 aprint_error(" at %s", intrstr); 275 aprint_error("\n"); 276 return; 277 } 278 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 279 280 if (iwi_reset(sc) != 0) { 281 aprint_error_dev(self, "could not reset adapter\n"); 282 return; 283 } 284 285 /* 286 * Allocate rings. 287 */ 288 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 289 aprint_error_dev(self, "could not allocate command ring\n"); 290 goto fail; 291 } 292 293 error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 294 IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 295 if (error != 0) { 296 aprint_error_dev(self, "could not allocate Tx ring 1\n"); 297 goto fail; 298 } 299 300 error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 301 IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 302 if (error != 0) { 303 aprint_error_dev(self, "could not allocate Tx ring 2\n"); 304 goto fail; 305 } 306 307 error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 308 IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 309 if (error != 0) { 310 aprint_error_dev(self, "could not allocate Tx ring 3\n"); 311 goto fail; 312 } 313 314 error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 315 IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 316 if (error != 0) { 317 aprint_error_dev(self, "could not allocate Tx ring 4\n"); 318 goto fail; 319 } 320 321 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 322 aprint_error_dev(self, "could not allocate Rx ring\n"); 323 goto fail; 324 } 325 326 ic->ic_ifp = ifp; 327 ic->ic_wme.wme_update = iwi_wme_update; 328 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 329 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 330 ic->ic_state = IEEE80211_S_INIT; 331 332 sc->sc_fwname = "ipw2200-bss.fw"; 333 334 /* set device capabilities */ 335 ic->ic_caps = 336 IEEE80211_C_IBSS | /* IBSS mode supported */ 337 IEEE80211_C_MONITOR | /* monitor mode supported */ 338 IEEE80211_C_TXPMGT | /* tx power management */ 339 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 340 IEEE80211_C_SHSLOT | /* short slot time supported */ 341 IEEE80211_C_WPA | /* 802.11i */ 342 IEEE80211_C_WME; /* 802.11e */ 343 344 /* read MAC address from EEPROM */ 345 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 346 ic->ic_myaddr[0] = val & 0xff; 347 ic->ic_myaddr[1] = val >> 8; 348 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 349 ic->ic_myaddr[2] = val & 0xff; 350 ic->ic_myaddr[3] = val >> 8; 351 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 352 ic->ic_myaddr[4] = val & 0xff; 353 ic->ic_myaddr[5] = val >> 8; 354 355 aprint_verbose_dev(self, "802.11 address %s\n", 356 ether_sprintf(ic->ic_myaddr)); 357 358 /* read the NIC type from EEPROM */ 359 val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); 360 sc->nictype = val & 0xff; 361 362 DPRINTF(("%s: NIC type %d\n", device_xname(self), sc->nictype)); 363 364 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || 365 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { 366 /* set supported .11a rates (2915ABG only) */ 367 ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 368 369 /* set supported .11a channels */ 370 for (i = 36; i <= 64; i += 4) { 371 ic->ic_channels[i].ic_freq = 372 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 373 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 374 } 375 for (i = 149; i <= 165; i += 4) { 376 ic->ic_channels[i].ic_freq = 377 ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 378 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 379 } 380 } 381 382 /* set supported .11b and .11g rates */ 383 ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 384 ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 385 386 /* set supported .11b and .11g channels (1 through 14) */ 387 for (i = 1; i <= 14; i++) { 388 ic->ic_channels[i].ic_freq = 389 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 390 ic->ic_channels[i].ic_flags = 391 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 392 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 393 } 394 395 ifp->if_softc = sc; 396 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 397 ifp->if_init = iwi_init; 398 ifp->if_stop = iwi_stop; 399 ifp->if_ioctl = iwi_ioctl; 400 ifp->if_start = iwi_start; 401 ifp->if_watchdog = iwi_watchdog; 402 IFQ_SET_READY(&ifp->if_snd); 403 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 404 405 if_attach(ifp); 406 ieee80211_ifattach(ic); 407 /* override default methods */ 408 ic->ic_node_alloc = iwi_node_alloc; 409 sc->sc_node_free = ic->ic_node_free; 410 ic->ic_node_free = iwi_node_free; 411 /* override state transition machine */ 412 sc->sc_newstate = ic->ic_newstate; 413 ic->ic_newstate = iwi_newstate; 414 ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 415 416 #if NBPFILTER > 0 417 bpfattach2(ifp, DLT_IEEE802_11_RADIO, 418 sizeof (struct ieee80211_frame) + 64, &sc->sc_drvbpf); 419 420 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 421 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 422 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 423 424 sc->sc_txtap_len = sizeof sc->sc_txtapu; 425 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 426 sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 427 #endif 428 429 iwi_sysctlattach(sc); 430 431 if (!pmf_device_register(self, NULL, NULL)) 432 aprint_error_dev(self, "couldn't establish power handler\n"); 433 else 434 pmf_class_network_register(self, ifp); 435 436 ieee80211_announce(ic); 437 438 return; 439 440 fail: iwi_detach(self, 0); 441 } 442 443 static int 444 iwi_detach(device_t self, int flags) 445 { 446 struct iwi_softc *sc = device_private(self); 447 struct ifnet *ifp = &sc->sc_if; 448 449 pmf_device_deregister(self); 450 451 if (ifp != NULL) 452 iwi_stop(ifp, 1); 453 454 iwi_free_firmware(sc); 455 456 ieee80211_ifdetach(&sc->sc_ic); 457 if (ifp != NULL) 458 if_detach(ifp); 459 460 iwi_free_cmd_ring(sc, &sc->cmdq); 461 iwi_free_tx_ring(sc, &sc->txq[0]); 462 iwi_free_tx_ring(sc, &sc->txq[1]); 463 iwi_free_tx_ring(sc, &sc->txq[2]); 464 iwi_free_tx_ring(sc, &sc->txq[3]); 465 iwi_free_rx_ring(sc, &sc->rxq); 466 467 if (sc->sc_ih != NULL) { 468 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 469 sc->sc_ih = NULL; 470 } 471 472 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 473 474 return 0; 475 } 476 477 static int 478 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, 479 int count) 480 { 481 int error, nsegs; 482 483 ring->count = count; 484 ring->queued = 0; 485 ring->cur = ring->next = 0; 486 487 /* 488 * Allocate and map command ring 489 */ 490 error = bus_dmamap_create(sc->sc_dmat, 491 IWI_CMD_DESC_SIZE * count, 1, 492 IWI_CMD_DESC_SIZE * count, 0, 493 BUS_DMA_NOWAIT, &ring->desc_map); 494 if (error != 0) { 495 aprint_error_dev(sc->sc_dev, 496 "could not create command ring DMA map\n"); 497 goto fail; 498 } 499 500 error = bus_dmamem_alloc(sc->sc_dmat, 501 IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, 502 &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 503 if (error != 0) { 504 aprint_error_dev(sc->sc_dev, 505 "could not allocate command ring DMA memory\n"); 506 goto fail; 507 } 508 509 error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, 510 IWI_CMD_DESC_SIZE * count, 511 (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); 512 if (error != 0) { 513 aprint_error_dev(sc->sc_dev, 514 "could not map command ring DMA memory\n"); 515 goto fail; 516 } 517 518 error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, 519 IWI_CMD_DESC_SIZE * count, NULL, 520 BUS_DMA_NOWAIT); 521 if (error != 0) { 522 aprint_error_dev(sc->sc_dev, 523 "could not load command ring DMA map\n"); 524 goto fail; 525 } 526 527 memset(sc->cmdq.desc, 0, 528 IWI_CMD_DESC_SIZE * count); 529 530 return 0; 531 532 fail: iwi_free_cmd_ring(sc, ring); 533 return error; 534 } 535 536 static void 537 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 538 { 539 int i; 540 541 for (i = ring->next; i != ring->cur;) { 542 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 543 i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 544 BUS_DMASYNC_POSTWRITE); 545 546 wakeup(&ring->desc[i]); 547 i = (i + 1) % ring->count; 548 } 549 550 ring->queued = 0; 551 ring->cur = ring->next = 0; 552 } 553 554 static void 555 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 556 { 557 if (ring->desc_map != NULL) { 558 if (ring->desc != NULL) { 559 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 560 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 561 IWI_CMD_DESC_SIZE * ring->count); 562 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 563 } 564 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 565 } 566 } 567 568 static int 569 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, 570 int count, bus_size_t csr_ridx, bus_size_t csr_widx) 571 { 572 int i, error, nsegs; 573 574 ring->count = count; 575 ring->queued = 0; 576 ring->cur = ring->next = 0; 577 ring->csr_ridx = csr_ridx; 578 ring->csr_widx = csr_widx; 579 580 /* 581 * Allocate and map Tx ring 582 */ 583 error = bus_dmamap_create(sc->sc_dmat, 584 IWI_TX_DESC_SIZE * count, 1, 585 IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, 586 &ring->desc_map); 587 if (error != 0) { 588 aprint_error_dev(sc->sc_dev, 589 "could not create tx ring DMA map\n"); 590 goto fail; 591 } 592 593 error = bus_dmamem_alloc(sc->sc_dmat, 594 IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, 595 &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); 596 if (error != 0) { 597 aprint_error_dev(sc->sc_dev, 598 "could not allocate tx ring DMA memory\n"); 599 goto fail; 600 } 601 602 error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, 603 IWI_TX_DESC_SIZE * count, 604 (void **)&ring->desc, BUS_DMA_NOWAIT); 605 if (error != 0) { 606 aprint_error_dev(sc->sc_dev, 607 "could not map tx ring DMA memory\n"); 608 goto fail; 609 } 610 611 error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, 612 IWI_TX_DESC_SIZE * count, NULL, 613 BUS_DMA_NOWAIT); 614 if (error != 0) { 615 aprint_error_dev(sc->sc_dev, 616 "could not load tx ring DMA map\n"); 617 goto fail; 618 } 619 620 memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); 621 622 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 623 M_NOWAIT | M_ZERO); 624 if (ring->data == NULL) { 625 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 626 error = ENOMEM; 627 goto fail; 628 } 629 630 /* 631 * Allocate Tx buffers DMA maps 632 */ 633 for (i = 0; i < count; i++) { 634 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, 635 MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); 636 if (error != 0) { 637 aprint_error_dev(sc->sc_dev, 638 "could not create tx buf DMA map"); 639 goto fail; 640 } 641 } 642 return 0; 643 644 fail: iwi_free_tx_ring(sc, ring); 645 return error; 646 } 647 648 static void 649 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 650 { 651 struct iwi_tx_data *data; 652 int i; 653 654 for (i = 0; i < ring->count; i++) { 655 data = &ring->data[i]; 656 657 if (data->m != NULL) { 658 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 659 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 660 bus_dmamap_unload(sc->sc_dmat, data->map); 661 m_freem(data->m); 662 data->m = NULL; 663 } 664 665 if (data->ni != NULL) { 666 ieee80211_free_node(data->ni); 667 data->ni = NULL; 668 } 669 } 670 671 ring->queued = 0; 672 ring->cur = ring->next = 0; 673 } 674 675 static void 676 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 677 { 678 int i; 679 680 if (ring->desc_map != NULL) { 681 if (ring->desc != NULL) { 682 bus_dmamap_unload(sc->sc_dmat, ring->desc_map); 683 bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, 684 IWI_TX_DESC_SIZE * ring->count); 685 bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); 686 } 687 bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); 688 } 689 690 for (i = 0; i < ring->count; i++) { 691 if (ring->data[i].m != NULL) { 692 bus_dmamap_unload(sc->sc_dmat, ring->data[i].map); 693 m_freem(ring->data[i].m); 694 } 695 bus_dmamap_destroy(sc->sc_dmat, ring->data[i].map); 696 } 697 } 698 699 static int 700 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 701 { 702 int i, error; 703 704 ring->count = count; 705 ring->cur = 0; 706 707 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 708 M_NOWAIT | M_ZERO); 709 if (ring->data == NULL) { 710 aprint_error_dev(sc->sc_dev, "could not allocate soft data\n"); 711 error = ENOMEM; 712 goto fail; 713 } 714 715 /* 716 * Allocate and map Rx buffers 717 */ 718 for (i = 0; i < count; i++) { 719 720 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 721 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); 722 if (error != 0) { 723 aprint_error_dev(sc->sc_dev, 724 "could not create rx buf DMA map"); 725 goto fail; 726 } 727 728 if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { 729 error = ENOMEM; 730 goto fail; 731 } 732 733 error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, 734 ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); 735 if (error != 0) { 736 aprint_error_dev(sc->sc_dev, 737 "could not load rx buffer DMA map\n"); 738 goto fail; 739 } 740 741 bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, 742 ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); 743 } 744 745 return 0; 746 747 fail: iwi_free_rx_ring(sc, ring); 748 return error; 749 } 750 751 static void 752 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 753 { 754 ring->cur = 0; 755 } 756 757 static void 758 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 759 { 760 int i; 761 762 for (i = 0; i < ring->count; i++) { 763 if (ring->data[i].m != NULL) { 764 bus_dmamap_unload(sc->sc_dmat, ring->data[i].map); 765 m_freem(ring->data[i].m); 766 } 767 bus_dmamap_destroy(sc->sc_dmat, ring->data[i].map); 768 } 769 } 770 771 static struct ieee80211_node * 772 iwi_node_alloc(struct ieee80211_node_table *nt) 773 { 774 struct iwi_node *in; 775 776 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 777 if (in == NULL) 778 return NULL; 779 780 in->in_station = -1; 781 782 return &in->in_node; 783 } 784 785 static int 786 iwi_alloc_unr(struct iwi_softc *sc) 787 { 788 int i; 789 790 for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) 791 if ((sc->sc_unr & (1 << i)) == 0) { 792 sc->sc_unr |= 1 << i; 793 return i; 794 } 795 796 return -1; 797 } 798 799 static void 800 iwi_free_unr(struct iwi_softc *sc, int r) 801 { 802 803 sc->sc_unr &= 1 << r; 804 } 805 806 static void 807 iwi_node_free(struct ieee80211_node *ni) 808 { 809 struct ieee80211com *ic = ni->ni_ic; 810 struct iwi_softc *sc = ic->ic_ifp->if_softc; 811 struct iwi_node *in = (struct iwi_node *)ni; 812 813 if (in->in_station != -1) 814 iwi_free_unr(sc, in->in_station); 815 816 sc->sc_node_free(ni); 817 } 818 819 static int 820 iwi_media_change(struct ifnet *ifp) 821 { 822 int error; 823 824 error = ieee80211_media_change(ifp); 825 if (error != ENETRESET) 826 return error; 827 828 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 829 iwi_init(ifp); 830 831 return 0; 832 } 833 834 /* 835 * Convert h/w rate code to IEEE rate code. 836 */ 837 static int 838 iwi_cvtrate(int iwirate) 839 { 840 switch (iwirate) { 841 case IWI_RATE_DS1: return 2; 842 case IWI_RATE_DS2: return 4; 843 case IWI_RATE_DS5: return 11; 844 case IWI_RATE_DS11: return 22; 845 case IWI_RATE_OFDM6: return 12; 846 case IWI_RATE_OFDM9: return 18; 847 case IWI_RATE_OFDM12: return 24; 848 case IWI_RATE_OFDM18: return 36; 849 case IWI_RATE_OFDM24: return 48; 850 case IWI_RATE_OFDM36: return 72; 851 case IWI_RATE_OFDM48: return 96; 852 case IWI_RATE_OFDM54: return 108; 853 } 854 return 0; 855 } 856 857 /* 858 * The firmware automatically adapts the transmit speed. We report its current 859 * value here. 860 */ 861 static void 862 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 863 { 864 struct iwi_softc *sc = ifp->if_softc; 865 struct ieee80211com *ic = &sc->sc_ic; 866 int rate; 867 868 imr->ifm_status = IFM_AVALID; 869 imr->ifm_active = IFM_IEEE80211; 870 if (ic->ic_state == IEEE80211_S_RUN) 871 imr->ifm_status |= IFM_ACTIVE; 872 873 /* read current transmission rate from adapter */ 874 rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 875 imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 876 877 switch (ic->ic_opmode) { 878 case IEEE80211_M_STA: 879 break; 880 881 case IEEE80211_M_IBSS: 882 imr->ifm_active |= IFM_IEEE80211_ADHOC; 883 break; 884 885 case IEEE80211_M_MONITOR: 886 imr->ifm_active |= IFM_IEEE80211_MONITOR; 887 break; 888 889 case IEEE80211_M_AHDEMO: 890 case IEEE80211_M_HOSTAP: 891 /* should not get there */ 892 break; 893 } 894 } 895 896 static int 897 iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 898 { 899 struct iwi_softc *sc = ic->ic_ifp->if_softc; 900 901 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 902 ieee80211_state_name[ic->ic_state], 903 ieee80211_state_name[nstate], sc->flags)); 904 905 switch (nstate) { 906 case IEEE80211_S_SCAN: 907 if (sc->flags & IWI_FLAG_SCANNING) 908 break; 909 910 ieee80211_node_table_reset(&ic->ic_scan); 911 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 912 sc->flags |= IWI_FLAG_SCANNING; 913 /* blink the led while scanning */ 914 iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); 915 iwi_scan(sc); 916 break; 917 918 case IEEE80211_S_AUTH: 919 iwi_auth_and_assoc(sc); 920 break; 921 922 case IEEE80211_S_RUN: 923 if (ic->ic_opmode == IEEE80211_M_IBSS) 924 ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 925 else if (ic->ic_opmode == IEEE80211_M_MONITOR) 926 iwi_set_chan(sc, ic->ic_ibss_chan); 927 928 return (*sc->sc_newstate)(ic, nstate, 929 IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 930 931 case IEEE80211_S_ASSOC: 932 iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); 933 break; 934 935 case IEEE80211_S_INIT: 936 sc->flags &= ~IWI_FLAG_SCANNING; 937 return (*sc->sc_newstate)(ic, nstate, arg); 938 } 939 940 ic->ic_state = nstate; 941 return 0; 942 } 943 944 /* 945 * WME parameters coming from IEEE 802.11e specification. These values are 946 * already declared in ieee80211_proto.c, but they are static so they can't 947 * be reused here. 948 */ 949 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 950 { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ 951 { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ 952 { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ 953 { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ 954 }; 955 956 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 957 { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ 958 { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ 959 { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ 960 { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ 961 }; 962 963 static int 964 iwi_wme_update(struct ieee80211com *ic) 965 { 966 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 967 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 968 struct iwi_softc *sc = ic->ic_ifp->if_softc; 969 struct iwi_wme_params wme[3]; 970 const struct wmeParams *wmep; 971 int ac; 972 973 /* 974 * We shall not override firmware default WME values if WME is not 975 * actually enabled. 976 */ 977 if (!(ic->ic_flags & IEEE80211_F_WME)) 978 return 0; 979 980 for (ac = 0; ac < WME_NUM_AC; ac++) { 981 /* set WME values for current operating mode */ 982 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 983 wme[0].aifsn[ac] = wmep->wmep_aifsn; 984 wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 985 wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 986 wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 987 wme[0].acm[ac] = wmep->wmep_acm; 988 989 /* set WME values for CCK modulation */ 990 wmep = &iwi_wme_cck_params[ac]; 991 wme[1].aifsn[ac] = wmep->wmep_aifsn; 992 wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 993 wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 994 wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 995 wme[1].acm[ac] = wmep->wmep_acm; 996 997 /* set WME values for OFDM modulation */ 998 wmep = &iwi_wme_ofdm_params[ac]; 999 wme[2].aifsn[ac] = wmep->wmep_aifsn; 1000 wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1001 wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1002 wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1003 wme[2].acm[ac] = wmep->wmep_acm; 1004 } 1005 1006 DPRINTF(("Setting WME parameters\n")); 1007 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1008 #undef IWI_USEC 1009 #undef IWI_EXP2 1010 } 1011 1012 /* 1013 * Read 16 bits at address 'addr' from the serial EEPROM. 1014 */ 1015 static uint16_t 1016 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1017 { 1018 uint32_t tmp; 1019 uint16_t val; 1020 int n; 1021 1022 /* Clock C once before the first command */ 1023 IWI_EEPROM_CTL(sc, 0); 1024 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1025 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1026 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1027 1028 /* Write start bit (1) */ 1029 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1030 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1031 1032 /* Write READ opcode (10) */ 1033 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1034 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1035 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1036 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1037 1038 /* Write address A7-A0 */ 1039 for (n = 7; n >= 0; n--) { 1040 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1041 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1042 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1043 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1044 } 1045 1046 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1047 1048 /* Read data Q15-Q0 */ 1049 val = 0; 1050 for (n = 15; n >= 0; n--) { 1051 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1052 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1053 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1054 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1055 } 1056 1057 IWI_EEPROM_CTL(sc, 0); 1058 1059 /* Clear Chip Select and clock C */ 1060 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1061 IWI_EEPROM_CTL(sc, 0); 1062 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1063 1064 return val; 1065 } 1066 1067 /* 1068 * XXX: Hack to set the current channel to the value advertised in beacons or 1069 * probe responses. Only used during AP detection. 1070 */ 1071 static void 1072 iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1073 { 1074 struct ieee80211_frame *wh; 1075 uint8_t subtype; 1076 uint8_t *frm, *efrm; 1077 1078 wh = mtod(m, struct ieee80211_frame *); 1079 1080 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1081 return; 1082 1083 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1084 1085 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1086 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1087 return; 1088 1089 frm = (uint8_t *)(wh + 1); 1090 efrm = mtod(m, uint8_t *) + m->m_len; 1091 1092 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1093 while (frm < efrm) { 1094 if (*frm == IEEE80211_ELEMID_DSPARMS) 1095 #if IEEE80211_CHAN_MAX < 255 1096 if (frm[2] <= IEEE80211_CHAN_MAX) 1097 #endif 1098 ic->ic_curchan = &ic->ic_channels[frm[2]]; 1099 1100 frm += frm[1] + 2; 1101 } 1102 } 1103 1104 static struct mbuf * 1105 iwi_alloc_rx_buf(struct iwi_softc *sc) 1106 { 1107 struct mbuf *m; 1108 1109 MGETHDR(m, M_DONTWAIT, MT_DATA); 1110 if (m == NULL) { 1111 aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n"); 1112 return NULL; 1113 } 1114 1115 MCLGET(m, M_DONTWAIT); 1116 if (!(m->m_flags & M_EXT)) { 1117 aprint_error_dev(sc->sc_dev, 1118 "could not allocate rx mbuf cluster\n"); 1119 m_freem(m); 1120 return NULL; 1121 } 1122 1123 m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; 1124 return m; 1125 } 1126 1127 static void 1128 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1129 struct iwi_frame *frame) 1130 { 1131 struct ieee80211com *ic = &sc->sc_ic; 1132 struct ifnet *ifp = ic->ic_ifp; 1133 struct mbuf *m, *m_new; 1134 struct ieee80211_frame *wh; 1135 struct ieee80211_node *ni; 1136 int error; 1137 1138 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1139 le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1140 1141 if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || 1142 le16toh(frame->len) > MCLBYTES) { 1143 DPRINTF(("%s: bad frame length\n", device_xname(sc->sc_dev))); 1144 ifp->if_ierrors++; 1145 return; 1146 } 1147 1148 /* 1149 * Try to allocate a new mbuf for this ring element and 1150 * load it before processing the current mbuf. If the ring 1151 * element cannot be reloaded, drop the received packet 1152 * and reuse the old mbuf. In the unlikely case that 1153 * the old mbuf can't be reloaded either, explicitly panic. 1154 * 1155 * XXX Reorganize buffer by moving elements from the logical 1156 * end of the ring to the front instead of dropping. 1157 */ 1158 if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { 1159 ifp->if_ierrors++; 1160 return; 1161 } 1162 1163 bus_dmamap_unload(sc->sc_dmat, data->map); 1164 1165 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, 1166 BUS_DMA_READ | BUS_DMA_NOWAIT); 1167 if (error != 0) { 1168 aprint_error_dev(sc->sc_dev, 1169 "could not load rx buf DMA map\n"); 1170 m_freem(m_new); 1171 ifp->if_ierrors++; 1172 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, 1173 data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); 1174 if (error) 1175 panic("%s: unable to remap rx buf", 1176 device_xname(sc->sc_dev)); 1177 return; 1178 } 1179 1180 /* 1181 * New mbuf successfully loaded, update RX ring and continue 1182 * processing. 1183 */ 1184 m = data->m; 1185 data->m = m_new; 1186 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); 1187 1188 /* Finalize mbuf */ 1189 m->m_pkthdr.rcvif = ifp; 1190 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1191 sizeof (struct iwi_frame) + le16toh(frame->len); 1192 1193 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1194 1195 if (ic->ic_state == IEEE80211_S_SCAN) 1196 iwi_fix_channel(ic, m); 1197 1198 #if NBPFILTER > 0 1199 if (sc->sc_drvbpf != NULL) { 1200 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1201 1202 tap->wr_flags = 0; 1203 tap->wr_rate = iwi_cvtrate(frame->rate); 1204 tap->wr_chan_freq = 1205 htole16(ic->ic_channels[frame->chan].ic_freq); 1206 tap->wr_chan_flags = 1207 htole16(ic->ic_channels[frame->chan].ic_flags); 1208 tap->wr_antsignal = frame->signal; 1209 tap->wr_antenna = frame->antenna; 1210 1211 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1212 } 1213 #endif 1214 wh = mtod(m, struct ieee80211_frame *); 1215 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1216 1217 /* Send the frame to the upper layer */ 1218 ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1219 1220 /* node is no longer needed */ 1221 ieee80211_free_node(ni); 1222 } 1223 1224 static void 1225 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1226 { 1227 struct ieee80211com *ic = &sc->sc_ic; 1228 struct iwi_notif_scan_channel *chan; 1229 struct iwi_notif_scan_complete *scan; 1230 struct iwi_notif_authentication *auth; 1231 struct iwi_notif_association *assoc; 1232 struct iwi_notif_beacon_state *beacon; 1233 1234 switch (notif->type) { 1235 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1236 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1237 1238 DPRINTFN(2, ("Scan of channel %u complete (%u)\n", 1239 ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); 1240 break; 1241 1242 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1243 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1244 1245 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1246 scan->status)); 1247 1248 /* monitor mode uses scan to set the channel ... */ 1249 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1250 sc->flags &= ~IWI_FLAG_SCANNING; 1251 ieee80211_end_scan(ic); 1252 } else 1253 iwi_set_chan(sc, ic->ic_ibss_chan); 1254 break; 1255 1256 case IWI_NOTIF_TYPE_AUTHENTICATION: 1257 auth = (struct iwi_notif_authentication *)(notif + 1); 1258 1259 DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1260 1261 switch (auth->state) { 1262 case IWI_AUTH_SUCCESS: 1263 ieee80211_node_authorize(ic->ic_bss); 1264 ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1265 break; 1266 1267 case IWI_AUTH_FAIL: 1268 break; 1269 1270 default: 1271 aprint_error_dev(sc->sc_dev, 1272 "unknown authentication state %u\n", auth->state); 1273 } 1274 break; 1275 1276 case IWI_NOTIF_TYPE_ASSOCIATION: 1277 assoc = (struct iwi_notif_association *)(notif + 1); 1278 1279 DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1280 assoc->status)); 1281 1282 switch (assoc->state) { 1283 case IWI_AUTH_SUCCESS: 1284 /* re-association, do nothing */ 1285 break; 1286 1287 case IWI_ASSOC_SUCCESS: 1288 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1289 break; 1290 1291 case IWI_ASSOC_FAIL: 1292 ieee80211_begin_scan(ic, 1); 1293 break; 1294 1295 default: 1296 aprint_error_dev(sc->sc_dev, 1297 "unknown association state %u\n", assoc->state); 1298 } 1299 break; 1300 1301 case IWI_NOTIF_TYPE_BEACON: 1302 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1303 1304 if (beacon->state == IWI_BEACON_MISS) { 1305 DPRINTFN(5, ("%s: %u beacon(s) missed\n", 1306 device_xname(sc->sc_dev), le32toh(beacon->number))); 1307 } 1308 break; 1309 1310 case IWI_NOTIF_TYPE_FRAG_LENGTH: 1311 case IWI_NOTIF_TYPE_LINK_QUALITY: 1312 case IWI_NOTIF_TYPE_TGI_TX_KEY: 1313 case IWI_NOTIF_TYPE_CALIBRATION: 1314 case IWI_NOTIF_TYPE_NOISE: 1315 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1316 break; 1317 1318 default: 1319 DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n", 1320 device_xname(sc->sc_dev), notif->type, notif->flags, 1321 le16toh(notif->len))); 1322 } 1323 } 1324 1325 static void 1326 iwi_cmd_intr(struct iwi_softc *sc) 1327 { 1328 uint32_t hw; 1329 1330 hw = CSR_READ_4(sc, IWI_CSR_CMD_RIDX); 1331 1332 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1333 sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, 1334 BUS_DMASYNC_POSTWRITE); 1335 1336 wakeup(&sc->cmdq.desc[sc->cmdq.next]); 1337 1338 sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; 1339 1340 if (--sc->cmdq.queued > 0) { 1341 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); 1342 } 1343 } 1344 1345 static void 1346 iwi_rx_intr(struct iwi_softc *sc) 1347 { 1348 struct iwi_rx_data *data; 1349 struct iwi_hdr *hdr; 1350 uint32_t hw; 1351 1352 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1353 1354 for (; sc->rxq.cur != hw;) { 1355 data = &sc->rxq.data[sc->rxq.cur]; 1356 1357 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1358 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1359 1360 hdr = mtod(data->m, struct iwi_hdr *); 1361 1362 switch (hdr->type) { 1363 case IWI_HDR_TYPE_FRAME: 1364 iwi_frame_intr(sc, data, sc->rxq.cur, 1365 (struct iwi_frame *)(hdr + 1)); 1366 break; 1367 1368 case IWI_HDR_TYPE_NOTIF: 1369 iwi_notification_intr(sc, 1370 (struct iwi_notif *)(hdr + 1)); 1371 break; 1372 1373 default: 1374 aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n", 1375 hdr->type); 1376 } 1377 1378 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1379 data->map->dm_mapsize, BUS_DMASYNC_PREREAD); 1380 1381 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1382 1383 sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; 1384 } 1385 1386 /* Tell the firmware what we have processed */ 1387 hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; 1388 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1389 } 1390 1391 static void 1392 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1393 { 1394 struct ifnet *ifp = &sc->sc_if; 1395 struct iwi_tx_data *data; 1396 uint32_t hw; 1397 1398 hw = CSR_READ_4(sc, txq->csr_ridx); 1399 1400 for (; txq->next != hw;) { 1401 data = &txq->data[txq->next]; 1402 1403 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1404 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1405 bus_dmamap_unload(sc->sc_dmat, data->map); 1406 m_freem(data->m); 1407 data->m = NULL; 1408 ieee80211_free_node(data->ni); 1409 data->ni = NULL; 1410 1411 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1412 1413 ifp->if_opackets++; 1414 1415 txq->queued--; 1416 txq->next = (txq->next + 1) % txq->count; 1417 } 1418 1419 sc->sc_tx_timer = 0; 1420 ifp->if_flags &= ~IFF_OACTIVE; 1421 1422 /* Call start() since some buffer descriptors have been released */ 1423 (*ifp->if_start)(ifp); 1424 } 1425 1426 static int 1427 iwi_intr(void *arg) 1428 { 1429 struct iwi_softc *sc = arg; 1430 uint32_t r; 1431 1432 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) 1433 return 0; 1434 1435 /* Acknowledge interrupts */ 1436 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1437 1438 if (r & IWI_INTR_FATAL_ERROR) { 1439 aprint_error_dev(sc->sc_dev, "fatal error\n"); 1440 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1441 iwi_stop(&sc->sc_if, 1); 1442 return (1); 1443 } 1444 1445 if (r & IWI_INTR_FW_INITED) { 1446 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1447 wakeup(sc); 1448 } 1449 1450 if (r & IWI_INTR_RADIO_OFF) { 1451 DPRINTF(("radio transmitter off\n")); 1452 sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1453 iwi_stop(&sc->sc_if, 1); 1454 return (1); 1455 } 1456 1457 if (r & IWI_INTR_CMD_DONE) 1458 iwi_cmd_intr(sc); 1459 1460 if (r & IWI_INTR_TX1_DONE) 1461 iwi_tx_intr(sc, &sc->txq[0]); 1462 1463 if (r & IWI_INTR_TX2_DONE) 1464 iwi_tx_intr(sc, &sc->txq[1]); 1465 1466 if (r & IWI_INTR_TX3_DONE) 1467 iwi_tx_intr(sc, &sc->txq[2]); 1468 1469 if (r & IWI_INTR_TX4_DONE) 1470 iwi_tx_intr(sc, &sc->txq[3]); 1471 1472 if (r & IWI_INTR_RX_DONE) 1473 iwi_rx_intr(sc); 1474 1475 if (r & IWI_INTR_PARITY_ERROR) 1476 aprint_error_dev(sc->sc_dev, "parity error\n"); 1477 1478 return 1; 1479 } 1480 1481 static int 1482 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, 1483 int async) 1484 { 1485 struct iwi_cmd_desc *desc; 1486 1487 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1488 1489 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1490 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1491 desc->type = type; 1492 desc->len = len; 1493 memcpy(desc->data, data, len); 1494 1495 bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, 1496 sc->cmdq.cur * IWI_CMD_DESC_SIZE, 1497 IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1498 1499 DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n", 1500 sc->cmdq.cur, type, len, async)); 1501 1502 sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; 1503 1504 if (++sc->cmdq.queued == 1) 1505 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1506 1507 return async ? 0 : tsleep(desc, 0, "iwicmd", hz); 1508 } 1509 1510 static void 1511 iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) 1512 { 1513 struct iwi_ibssnode node; 1514 1515 /* write node information into NIC memory */ 1516 memset(&node, 0, sizeof node); 1517 IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); 1518 1519 CSR_WRITE_REGION_1(sc, 1520 IWI_CSR_NODE_BASE + in->in_station * sizeof node, 1521 (uint8_t *)&node, sizeof node); 1522 } 1523 1524 static int 1525 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1526 int ac) 1527 { 1528 struct iwi_softc *sc = ifp->if_softc; 1529 struct ieee80211com *ic = &sc->sc_ic; 1530 struct iwi_node *in = (struct iwi_node *)ni; 1531 struct ieee80211_frame *wh; 1532 struct ieee80211_key *k; 1533 const struct chanAccParams *cap; 1534 struct iwi_tx_ring *txq = &sc->txq[ac]; 1535 struct iwi_tx_data *data; 1536 struct iwi_tx_desc *desc; 1537 struct mbuf *mnew; 1538 int error, hdrlen, i, noack = 0; 1539 1540 wh = mtod(m0, struct ieee80211_frame *); 1541 1542 if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1543 hdrlen = sizeof (struct ieee80211_qosframe); 1544 cap = &ic->ic_wme.wme_chanParams; 1545 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1546 } else 1547 hdrlen = sizeof (struct ieee80211_frame); 1548 1549 /* 1550 * This is only used in IBSS mode where the firmware expect an index 1551 * in a h/w table instead of a destination address. 1552 */ 1553 if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { 1554 in->in_station = iwi_alloc_unr(sc); 1555 1556 if (in->in_station == -1) { /* h/w table is full */ 1557 m_freem(m0); 1558 ieee80211_free_node(ni); 1559 ifp->if_oerrors++; 1560 return 0; 1561 } 1562 iwi_write_ibssnode(sc, in); 1563 } 1564 1565 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1566 k = ieee80211_crypto_encap(ic, ni, m0); 1567 if (k == NULL) { 1568 m_freem(m0); 1569 return ENOBUFS; 1570 } 1571 1572 /* packet header may have moved, reset our local pointer */ 1573 wh = mtod(m0, struct ieee80211_frame *); 1574 } 1575 1576 #if NBPFILTER > 0 1577 if (sc->sc_drvbpf != NULL) { 1578 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1579 1580 tap->wt_flags = 0; 1581 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1582 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1583 1584 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1585 } 1586 #endif 1587 1588 data = &txq->data[txq->cur]; 1589 desc = &txq->desc[txq->cur]; 1590 1591 /* save and trim IEEE802.11 header */ 1592 m_copydata(m0, 0, hdrlen, (void *)&desc->wh); 1593 m_adj(m0, hdrlen); 1594 1595 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1596 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1597 if (error != 0 && error != EFBIG) { 1598 aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n", 1599 error); 1600 m_freem(m0); 1601 return error; 1602 } 1603 if (error != 0) { 1604 /* too many fragments, linearize */ 1605 1606 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1607 if (mnew == NULL) { 1608 m_freem(m0); 1609 return ENOMEM; 1610 } 1611 1612 M_COPY_PKTHDR(mnew, m0); 1613 1614 /* If the data won't fit in the header, get a cluster */ 1615 if (m0->m_pkthdr.len > MHLEN) { 1616 MCLGET(mnew, M_DONTWAIT); 1617 if (!(mnew->m_flags & M_EXT)) { 1618 m_freem(m0); 1619 m_freem(mnew); 1620 return ENOMEM; 1621 } 1622 } 1623 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); 1624 m_freem(m0); 1625 mnew->m_len = mnew->m_pkthdr.len; 1626 m0 = mnew; 1627 1628 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1629 BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1630 if (error != 0) { 1631 aprint_error_dev(sc->sc_dev, 1632 "could not map mbuf (error %d)\n", error); 1633 m_freem(m0); 1634 return error; 1635 } 1636 } 1637 1638 data->m = m0; 1639 data->ni = ni; 1640 1641 desc->hdr.type = IWI_HDR_TYPE_DATA; 1642 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1643 desc->station = 1644 (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; 1645 desc->cmd = IWI_DATA_CMD_TX; 1646 desc->len = htole16(m0->m_pkthdr.len); 1647 desc->flags = 0; 1648 desc->xflags = 0; 1649 1650 if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1651 desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1652 1653 #if 0 1654 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1655 desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1656 desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1657 } else 1658 #endif 1659 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1660 1661 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1662 desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1663 1664 if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1665 desc->xflags |= IWI_DATA_XFLAG_QOS; 1666 1667 if (ic->ic_curmode == IEEE80211_MODE_11B) 1668 desc->xflags |= IWI_DATA_XFLAG_CCK; 1669 1670 desc->nseg = htole32(data->map->dm_nsegs); 1671 for (i = 0; i < data->map->dm_nsegs; i++) { 1672 desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); 1673 desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); 1674 } 1675 1676 bus_dmamap_sync(sc->sc_dmat, txq->desc_map, 1677 txq->cur * IWI_TX_DESC_SIZE, 1678 IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); 1679 1680 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 1681 BUS_DMASYNC_PREWRITE); 1682 1683 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1684 ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); 1685 1686 /* Inform firmware about this new packet */ 1687 txq->queued++; 1688 txq->cur = (txq->cur + 1) % txq->count; 1689 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1690 1691 return 0; 1692 } 1693 1694 static void 1695 iwi_start(struct ifnet *ifp) 1696 { 1697 struct iwi_softc *sc = ifp->if_softc; 1698 struct ieee80211com *ic = &sc->sc_ic; 1699 struct mbuf *m0; 1700 struct ether_header *eh; 1701 struct ieee80211_node *ni; 1702 int ac; 1703 1704 if (ic->ic_state != IEEE80211_S_RUN) 1705 return; 1706 1707 for (;;) { 1708 IF_DEQUEUE(&ifp->if_snd, m0); 1709 if (m0 == NULL) 1710 break; 1711 1712 if (m0->m_len < sizeof (struct ether_header) && 1713 (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { 1714 ifp->if_oerrors++; 1715 continue; 1716 } 1717 1718 eh = mtod(m0, struct ether_header *); 1719 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1720 if (ni == NULL) { 1721 m_freem(m0); 1722 ifp->if_oerrors++; 1723 continue; 1724 } 1725 1726 /* classify mbuf so we can find which tx ring to use */ 1727 if (ieee80211_classify(ic, m0, ni) != 0) { 1728 m_freem(m0); 1729 ieee80211_free_node(ni); 1730 ifp->if_oerrors++; 1731 continue; 1732 } 1733 1734 /* no QoS encapsulation for EAPOL frames */ 1735 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1736 M_WME_GETAC(m0) : WME_AC_BE; 1737 1738 if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1739 /* there is no place left in this ring */ 1740 IF_PREPEND(&ifp->if_snd, m0); 1741 ifp->if_flags |= IFF_OACTIVE; 1742 break; 1743 } 1744 1745 #if NBPFILTER > 0 1746 if (ifp->if_bpf != NULL) 1747 bpf_mtap(ifp->if_bpf, m0); 1748 #endif 1749 1750 m0 = ieee80211_encap(ic, m0, ni); 1751 if (m0 == NULL) { 1752 ieee80211_free_node(ni); 1753 ifp->if_oerrors++; 1754 continue; 1755 } 1756 1757 #if NBPFILTER > 0 1758 if (ic->ic_rawbpf != NULL) 1759 bpf_mtap(ic->ic_rawbpf, m0); 1760 #endif 1761 1762 if (iwi_tx_start(ifp, m0, ni, ac) != 0) { 1763 ieee80211_free_node(ni); 1764 ifp->if_oerrors++; 1765 break; 1766 } 1767 1768 /* start watchdog timer */ 1769 sc->sc_tx_timer = 5; 1770 ifp->if_timer = 1; 1771 } 1772 } 1773 1774 static void 1775 iwi_watchdog(struct ifnet *ifp) 1776 { 1777 struct iwi_softc *sc = ifp->if_softc; 1778 1779 ifp->if_timer = 0; 1780 1781 if (sc->sc_tx_timer > 0) { 1782 if (--sc->sc_tx_timer == 0) { 1783 aprint_error_dev(sc->sc_dev, "device timeout\n"); 1784 ifp->if_oerrors++; 1785 ifp->if_flags &= ~IFF_UP; 1786 iwi_stop(ifp, 1); 1787 return; 1788 } 1789 ifp->if_timer = 1; 1790 } 1791 1792 ieee80211_watchdog(&sc->sc_ic); 1793 } 1794 1795 static int 1796 iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) 1797 { 1798 uint32_t size, buf[128]; 1799 1800 if (!(sc->flags & IWI_FLAG_FW_INITED)) { 1801 memset(buf, 0, sizeof buf); 1802 return copyout(buf, tbl, sizeof buf); 1803 } 1804 1805 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 1806 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 1807 1808 return copyout(buf, tbl, sizeof buf); 1809 } 1810 1811 static int 1812 iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1813 { 1814 #define IS_RUNNING(ifp) \ 1815 ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1816 1817 struct iwi_softc *sc = ifp->if_softc; 1818 struct ieee80211com *ic = &sc->sc_ic; 1819 struct ifreq *ifr = (struct ifreq *)data; 1820 int s, error = 0; 1821 int val; 1822 1823 s = splnet(); 1824 1825 switch (cmd) { 1826 case SIOCSIFFLAGS: 1827 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1828 break; 1829 if (ifp->if_flags & IFF_UP) { 1830 if (!(ifp->if_flags & IFF_RUNNING)) 1831 iwi_init(ifp); 1832 } else { 1833 if (ifp->if_flags & IFF_RUNNING) 1834 iwi_stop(ifp, 1); 1835 } 1836 break; 1837 1838 case SIOCADDMULTI: 1839 case SIOCDELMULTI: 1840 /* XXX no h/w multicast filter? --dyoung */ 1841 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1842 /* setup multicast filter, etc */ 1843 error = 0; 1844 } 1845 break; 1846 1847 case SIOCGTABLE0: 1848 error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); 1849 break; 1850 1851 case SIOCGRADIO: 1852 val = !iwi_getrfkill(sc); 1853 error = copyout(&val, (int *)ifr->ifr_data, sizeof val); 1854 break; 1855 1856 case SIOCSIFMEDIA: 1857 if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { 1858 sc->sc_fwname = "ipw2200-ibss.fw"; 1859 } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { 1860 sc->sc_fwname = "ipw2200-sniffer.fw"; 1861 } else { 1862 sc->sc_fwname = "ipw2200-bss.fw"; 1863 } 1864 error = iwi_cache_firmware(sc); 1865 if (error) 1866 break; 1867 /* FALLTRHOUGH */ 1868 1869 default: 1870 error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1871 1872 if (error == ENETRESET) { 1873 if (IS_RUNNING(ifp) && 1874 (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1875 iwi_init(ifp); 1876 error = 0; 1877 } 1878 } 1879 1880 splx(s); 1881 return error; 1882 #undef IS_RUNNING 1883 } 1884 1885 static void 1886 iwi_stop_master(struct iwi_softc *sc) 1887 { 1888 int ntries; 1889 1890 /* Disable interrupts */ 1891 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1892 1893 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1894 for (ntries = 0; ntries < 5; ntries++) { 1895 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1896 break; 1897 DELAY(10); 1898 } 1899 if (ntries == 5) 1900 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1901 1902 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1903 IWI_RST_PRINCETON_RESET); 1904 1905 sc->flags &= ~IWI_FLAG_FW_INITED; 1906 } 1907 1908 static int 1909 iwi_reset(struct iwi_softc *sc) 1910 { 1911 int i, ntries; 1912 1913 iwi_stop_master(sc); 1914 1915 /* Move adapter to D0 state */ 1916 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1917 IWI_CTL_INIT); 1918 1919 /* Initialize Phase-Locked Level (PLL) */ 1920 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1921 1922 /* Wait for clock stabilization */ 1923 for (ntries = 0; ntries < 1000; ntries++) { 1924 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1925 break; 1926 DELAY(200); 1927 } 1928 if (ntries == 1000) { 1929 aprint_error_dev(sc->sc_dev, 1930 "timeout waiting for clock stabilization\n"); 1931 return ETIMEDOUT; 1932 } 1933 1934 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1935 IWI_RST_SW_RESET); 1936 1937 DELAY(10); 1938 1939 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 1940 IWI_CTL_INIT); 1941 1942 /* Clear NIC memory */ 1943 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1944 for (i = 0; i < 0xc000; i++) 1945 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1946 1947 return 0; 1948 } 1949 1950 static int 1951 iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1952 { 1953 uint16_t *w; 1954 int ntries, i; 1955 1956 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1957 IWI_RST_STOP_MASTER); 1958 for (ntries = 0; ntries < 5; ntries++) { 1959 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1960 break; 1961 DELAY(10); 1962 } 1963 if (ntries == 5) { 1964 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 1965 return ETIMEDOUT; 1966 } 1967 1968 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1969 DELAY(5000); 1970 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 1971 ~IWI_RST_PRINCETON_RESET); 1972 DELAY(5000); 1973 MEM_WRITE_4(sc, 0x3000e0, 0); 1974 DELAY(1000); 1975 MEM_WRITE_4(sc, 0x300004, 1); 1976 DELAY(1000); 1977 MEM_WRITE_4(sc, 0x300004, 0); 1978 DELAY(1000); 1979 MEM_WRITE_1(sc, 0x200000, 0x00); 1980 MEM_WRITE_1(sc, 0x200000, 0x40); 1981 DELAY(1000); 1982 1983 /* Adapter is buggy, we must set the address for each word */ 1984 for (w = uc; size > 0; w++, size -= 2) 1985 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 1986 1987 MEM_WRITE_1(sc, 0x200000, 0x00); 1988 MEM_WRITE_1(sc, 0x200000, 0x80); 1989 1990 /* Wait until we get a response in the uc queue */ 1991 for (ntries = 0; ntries < 100; ntries++) { 1992 if (MEM_READ_1(sc, 0x200000) & 1) 1993 break; 1994 DELAY(100); 1995 } 1996 if (ntries == 100) { 1997 aprint_error_dev(sc->sc_dev, 1998 "timeout waiting for ucode to initialize\n"); 1999 return ETIMEDOUT; 2000 } 2001 2002 /* Empty the uc queue or the firmware will not initialize properly */ 2003 for (i = 0; i < 7; i++) 2004 MEM_READ_4(sc, 0x200004); 2005 2006 MEM_WRITE_1(sc, 0x200000, 0x00); 2007 2008 return 0; 2009 } 2010 2011 /* macro to handle unaligned little endian data in firmware image */ 2012 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2013 static int 2014 iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 2015 { 2016 bus_dmamap_t map; 2017 u_char *p, *end; 2018 uint32_t sentinel, ctl, sum; 2019 uint32_t cs, sl, cd, cl; 2020 int ntries, nsegs, error; 2021 int sn; 2022 2023 nsegs = atop((char*)fw+size-1) - atop((char *)fw) + 1; 2024 2025 /* Create a DMA map for the firmware image */ 2026 error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, 2027 BUS_DMA_NOWAIT, &map); 2028 if (error != 0) { 2029 aprint_error_dev(sc->sc_dev, 2030 "could not create firmware DMA map\n"); 2031 goto fail1; 2032 } 2033 2034 error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, 2035 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 2036 if (error != 0) { 2037 aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n", 2038 error); 2039 goto fail2; 2040 } 2041 2042 /* Make sure the adapter will get up-to-date values */ 2043 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 2044 2045 /* Tell the adapter where the command blocks are stored */ 2046 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2047 2048 /* 2049 * Store command blocks into adapter's internal memory using register 2050 * indirections. The adapter will read the firmware image through DMA 2051 * using information stored in command blocks. 2052 */ 2053 p = fw; 2054 end = p + size; 2055 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2056 2057 sn = 0; 2058 sl = cl = 0; 2059 cs = cd = 0; 2060 while (p < end) { 2061 if (sl == 0) { 2062 cs = map->dm_segs[sn].ds_addr; 2063 sl = map->dm_segs[sn].ds_len; 2064 sn++; 2065 } 2066 if (cl == 0) { 2067 cd = GETLE32(p); p += 4; cs += 4; sl -= 4; 2068 cl = GETLE32(p); p += 4; cs += 4; sl -= 4; 2069 } 2070 while (sl > 0 && cl > 0) { 2071 int len = min(cl, sl); 2072 2073 sl -= len; 2074 cl -= len; 2075 p += len; 2076 2077 while (len > 0) { 2078 int mlen = min(len, IWI_CB_MAXDATALEN); 2079 2080 ctl = IWI_CB_DEFAULT_CTL | mlen; 2081 sum = ctl ^ cs ^ cd; 2082 2083 /* Write a command block */ 2084 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2085 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); 2086 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); 2087 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2088 2089 cs += mlen; 2090 cd += mlen; 2091 len -= mlen; 2092 } 2093 } 2094 } 2095 2096 /* Write a fictive final command block (sentinel) */ 2097 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2098 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2099 2100 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & 2101 ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); 2102 2103 /* Tell the adapter to start processing command blocks */ 2104 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2105 2106 /* Wait until the adapter has processed all command blocks */ 2107 for (ntries = 0; ntries < 400; ntries++) { 2108 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2109 break; 2110 DELAY(100); 2111 } 2112 if (ntries == 400) { 2113 aprint_error_dev(sc->sc_dev, "timeout processing cb\n"); 2114 error = ETIMEDOUT; 2115 goto fail3; 2116 } 2117 2118 /* We're done with command blocks processing */ 2119 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2120 2121 /* Allow interrupts so we know when the firmware is inited */ 2122 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2123 2124 /* Tell the adapter to initialize the firmware */ 2125 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2126 CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | 2127 IWI_CTL_ALLOW_STANDBY); 2128 2129 /* Wait at most one second for firmware initialization to complete */ 2130 if ((error = tsleep(sc, 0, "iwiinit", hz)) != 0) { 2131 aprint_error_dev(sc->sc_dev, 2132 "timeout waiting for firmware initialization to complete\n"); 2133 goto fail3; 2134 } 2135 2136 fail3: 2137 bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 2138 bus_dmamap_unload(sc->sc_dmat, map); 2139 fail2: 2140 bus_dmamap_destroy(sc->sc_dmat, map); 2141 2142 fail1: 2143 return error; 2144 } 2145 2146 /* 2147 * Store firmware into kernel memory so we can download it when we need to, 2148 * e.g when the adapter wakes up from suspend mode. 2149 */ 2150 static int 2151 iwi_cache_firmware(struct iwi_softc *sc) 2152 { 2153 struct iwi_firmware *kfw = &sc->fw; 2154 firmware_handle_t fwh; 2155 const struct iwi_firmware_hdr *hdr; 2156 off_t size; 2157 char *fw; 2158 int error; 2159 2160 if (iwi_accept_eula == 0) { 2161 aprint_error_dev(sc->sc_dev, 2162 "EULA not accepted; please see the iwi(4) man page.\n"); 2163 return EPERM; 2164 } 2165 2166 iwi_free_firmware(sc); 2167 error = firmware_open("if_iwi", sc->sc_fwname, &fwh); 2168 if (error != 0) { 2169 aprint_error_dev(sc->sc_dev, "firmware_open failed\n"); 2170 goto fail1; 2171 } 2172 2173 size = firmware_get_size(fwh); 2174 if (size < sizeof(struct iwi_firmware_hdr)) { 2175 aprint_error_dev(sc->sc_dev, "image '%s' has no header\n", 2176 sc->sc_fwname); 2177 error = EIO; 2178 goto fail1; 2179 } 2180 2181 sc->sc_blob = firmware_malloc(size); 2182 if (sc->sc_blob == NULL) { 2183 error = ENOMEM; 2184 firmware_close(fwh); 2185 goto fail1; 2186 } 2187 2188 error = firmware_read(fwh, 0, sc->sc_blob, size); 2189 firmware_close(fwh); 2190 if (error != 0) 2191 goto fail2; 2192 2193 2194 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2195 if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { 2196 aprint_error_dev(sc->sc_dev, "image '%s' too small\n", 2197 sc->sc_fwname); 2198 error = EIO; 2199 goto fail2; 2200 } 2201 2202 hdr = (const struct iwi_firmware_hdr *)sc->sc_blob; 2203 DPRINTF(("firmware version = %d\n", le32toh(hdr->version))); 2204 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2205 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2206 aprint_error_dev(sc->sc_dev, 2207 "version for '%s' %d.%d != %d.%d\n", sc->sc_fwname, 2208 IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2209 IWI_FW_GET_MINOR(le32toh(hdr->version)), 2210 IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); 2211 error = EIO; 2212 goto fail2; 2213 } 2214 2215 kfw->boot_size = hdr->bsize; 2216 kfw->ucode_size = hdr->usize; 2217 kfw->main_size = hdr->fsize; 2218 2219 fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); 2220 kfw->boot = fw; 2221 fw += kfw->boot_size; 2222 kfw->ucode = fw; 2223 fw += kfw->ucode_size; 2224 kfw->main = fw; 2225 2226 DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n", 2227 kfw->boot, kfw->ucode, kfw->main)); 2228 DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2229 kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2230 2231 sc->flags |= IWI_FLAG_FW_CACHED; 2232 2233 return 0; 2234 2235 2236 fail2: firmware_free(sc->sc_blob, 0); 2237 fail1: 2238 return error; 2239 } 2240 2241 static void 2242 iwi_free_firmware(struct iwi_softc *sc) 2243 { 2244 2245 if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2246 return; 2247 2248 firmware_free(sc->sc_blob, 0); 2249 2250 sc->flags &= ~IWI_FLAG_FW_CACHED; 2251 } 2252 2253 static int 2254 iwi_config(struct iwi_softc *sc) 2255 { 2256 struct ieee80211com *ic = &sc->sc_ic; 2257 struct ifnet *ifp = &sc->sc_if; 2258 struct iwi_configuration config; 2259 struct iwi_rateset rs; 2260 struct iwi_txpower power; 2261 struct ieee80211_key *wk; 2262 struct iwi_wep_key wepkey; 2263 uint32_t data; 2264 int error, nchan, i; 2265 2266 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 2267 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 2268 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2269 IEEE80211_ADDR_LEN, 0); 2270 if (error != 0) 2271 return error; 2272 2273 memset(&config, 0, sizeof config); 2274 config.bluetooth_coexistence = sc->bluetooth; 2275 config.antenna = sc->antenna; 2276 config.silence_threshold = 0x1e; 2277 config.multicast_enabled = 1; 2278 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2279 config.disable_unicast_decryption = 1; 2280 config.disable_multicast_decryption = 1; 2281 DPRINTF(("Configuring adapter\n")); 2282 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, 2283 0); 2284 if (error != 0) 2285 return error; 2286 2287 data = htole32(IWI_POWER_MODE_CAM); 2288 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2289 error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2290 if (error != 0) 2291 return error; 2292 2293 data = htole32(ic->ic_rtsthreshold); 2294 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2295 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2296 if (error != 0) 2297 return error; 2298 2299 data = htole32(ic->ic_fragthreshold); 2300 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2301 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2302 if (error != 0) 2303 return error; 2304 2305 /* 2306 * Set default Tx power for 802.11b/g and 802.11a channels. 2307 */ 2308 nchan = 0; 2309 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2310 if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) 2311 continue; 2312 power.chan[nchan].chan = i; 2313 power.chan[nchan].power = IWI_TXPOWER_MAX; 2314 nchan++; 2315 } 2316 power.nchan = nchan; 2317 2318 power.mode = IWI_MODE_11G; 2319 DPRINTF(("Setting .11g channels tx power\n")); 2320 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2321 if (error != 0) 2322 return error; 2323 2324 power.mode = IWI_MODE_11B; 2325 DPRINTF(("Setting .11b channels tx power\n")); 2326 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); 2327 if (error != 0) 2328 return error; 2329 2330 nchan = 0; 2331 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2332 if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) 2333 continue; 2334 power.chan[nchan].chan = i; 2335 power.chan[nchan].power = IWI_TXPOWER_MAX; 2336 nchan++; 2337 } 2338 power.nchan = nchan; 2339 2340 if (nchan > 0) { /* 2915ABG only */ 2341 power.mode = IWI_MODE_11A; 2342 DPRINTF(("Setting .11a channels tx power\n")); 2343 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2344 0); 2345 if (error != 0) 2346 return error; 2347 } 2348 2349 rs.mode = IWI_MODE_11G; 2350 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2351 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2352 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2353 rs.nrates); 2354 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2355 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2356 if (error != 0) 2357 return error; 2358 2359 rs.mode = IWI_MODE_11A; 2360 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2361 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2362 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2363 rs.nrates); 2364 DPRINTF(("Setting .11a 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 /* if we have a desired ESSID, set it now */ 2370 if (ic->ic_des_esslen != 0) { 2371 #ifdef IWI_DEBUG 2372 if (iwi_debug > 0) { 2373 printf("Setting desired ESSID to "); 2374 ieee80211_print_essid(ic->ic_des_essid, 2375 ic->ic_des_esslen); 2376 printf("\n"); 2377 } 2378 #endif 2379 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, 2380 ic->ic_des_esslen, 0); 2381 if (error != 0) 2382 return error; 2383 } 2384 2385 data = htole32(arc4random()); 2386 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2387 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2388 if (error != 0) 2389 return error; 2390 2391 if (ic->ic_flags & IEEE80211_F_PRIVACY) { 2392 /* XXX iwi_setwepkeys? */ 2393 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2394 wk = &ic->ic_crypto.cs_nw_keys[i]; 2395 2396 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2397 wepkey.idx = i; 2398 wepkey.len = wk->wk_keylen; 2399 memset(wepkey.key, 0, sizeof wepkey.key); 2400 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2401 DPRINTF(("Setting wep key index %u len %u\n", 2402 wepkey.idx, wepkey.len)); 2403 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2404 sizeof wepkey, 0); 2405 if (error != 0) 2406 return error; 2407 } 2408 } 2409 2410 /* Enable adapter */ 2411 DPRINTF(("Enabling adapter\n")); 2412 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2413 } 2414 2415 static int 2416 iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2417 { 2418 struct ieee80211com *ic = &sc->sc_ic; 2419 struct iwi_scan_v2 scan; 2420 2421 (void)memset(&scan, 0, sizeof scan); 2422 2423 scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); 2424 scan.channels[0] = 1 | 2425 (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); 2426 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2427 iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); 2428 2429 DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2430 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2431 } 2432 2433 static int 2434 iwi_scan(struct iwi_softc *sc) 2435 { 2436 struct ieee80211com *ic = &sc->sc_ic; 2437 struct iwi_scan_v2 scan; 2438 uint32_t type; 2439 uint8_t *p; 2440 int i, count, idx; 2441 2442 (void)memset(&scan, 0, sizeof scan); 2443 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = 2444 htole16(sc->dwelltime); 2445 scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = 2446 htole16(sc->dwelltime); 2447 2448 /* tell the firmware about the desired essid */ 2449 if (ic->ic_des_esslen) { 2450 int error; 2451 2452 DPRINTF(("%s: Setting adapter desired ESSID to %s\n", 2453 __func__, ic->ic_des_essid)); 2454 2455 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, 2456 ic->ic_des_essid, ic->ic_des_esslen, 1); 2457 if (error) 2458 return error; 2459 2460 type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; 2461 } else { 2462 type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; 2463 } 2464 2465 p = &scan.channels[0]; 2466 count = idx = 0; 2467 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2468 if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2469 isset(ic->ic_chan_active, i)) { 2470 *++p = i; 2471 count++; 2472 idx++; 2473 iwi_scan_type_set(scan, idx, type); 2474 } 2475 } 2476 if (count) { 2477 *(p - count) = IWI_CHAN_5GHZ | count; 2478 p++; 2479 } 2480 2481 count = 0; 2482 for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2483 if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2484 isset(ic->ic_chan_active, i)) { 2485 *++p = i; 2486 count++; 2487 idx++; 2488 iwi_scan_type_set(scan, idx, type); 2489 } 2490 } 2491 *(p - count) = IWI_CHAN_2GHZ | count; 2492 2493 DPRINTF(("Start scanning\n")); 2494 return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); 2495 } 2496 2497 static int 2498 iwi_auth_and_assoc(struct iwi_softc *sc) 2499 { 2500 struct ieee80211com *ic = &sc->sc_ic; 2501 struct ieee80211_node *ni = ic->ic_bss; 2502 struct ifnet *ifp = &sc->sc_if; 2503 struct ieee80211_wme_info wme; 2504 struct iwi_configuration config; 2505 struct iwi_associate assoc; 2506 struct iwi_rateset rs; 2507 uint16_t capinfo; 2508 uint32_t data; 2509 int error; 2510 2511 memset(&config, 0, sizeof config); 2512 config.bluetooth_coexistence = sc->bluetooth; 2513 config.antenna = sc->antenna; 2514 config.multicast_enabled = 1; 2515 config.silence_threshold = 0x1e; 2516 if (ic->ic_curmode == IEEE80211_MODE_11G) 2517 config.use_protection = 1; 2518 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2519 config.disable_unicast_decryption = 1; 2520 config.disable_multicast_decryption = 1; 2521 2522 DPRINTF(("Configuring adapter\n")); 2523 error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, 2524 sizeof config, 1); 2525 if (error != 0) 2526 return error; 2527 2528 #ifdef IWI_DEBUG 2529 if (iwi_debug > 0) { 2530 aprint_debug_dev(sc->sc_dev, "Setting ESSID to "); 2531 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2532 aprint_debug("\n"); 2533 } 2534 #endif 2535 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2536 if (error != 0) 2537 return error; 2538 2539 /* the rate set has already been "negotiated" */ 2540 rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2541 IWI_MODE_11G; 2542 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2543 rs.nrates = ni->ni_rates.rs_nrates; 2544 2545 if (rs.nrates > IWI_RATESET_SIZE) { 2546 DPRINTF(("Truncating negotiated rate set from %u\n", 2547 rs.nrates)); 2548 rs.nrates = IWI_RATESET_SIZE; 2549 } 2550 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2551 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2552 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2553 if (error != 0) 2554 return error; 2555 2556 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2557 wme.wme_id = IEEE80211_ELEMID_VENDOR; 2558 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2559 wme.wme_oui[0] = 0x00; 2560 wme.wme_oui[1] = 0x50; 2561 wme.wme_oui[2] = 0xf2; 2562 wme.wme_type = WME_OUI_TYPE; 2563 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2564 wme.wme_version = WME_VERSION; 2565 wme.wme_info = 0; 2566 2567 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2568 error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2569 if (error != 0) 2570 return error; 2571 } 2572 2573 if (ic->ic_opt_ie != NULL) { 2574 DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2575 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2576 ic->ic_opt_ie_len, 1); 2577 if (error != 0) 2578 return error; 2579 } 2580 data = htole32(ni->ni_rssi); 2581 DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2582 error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2583 if (error != 0) 2584 return error; 2585 2586 memset(&assoc, 0, sizeof assoc); 2587 if (IEEE80211_IS_CHAN_A(ni->ni_chan)) 2588 assoc.mode = IWI_MODE_11A; 2589 else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) 2590 assoc.mode = IWI_MODE_11G; 2591 else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) 2592 assoc.mode = IWI_MODE_11B; 2593 2594 assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2595 2596 if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2597 assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; 2598 2599 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 2600 assoc.plen = IWI_ASSOC_SHPREAMBLE; 2601 2602 if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2603 assoc.policy |= htole16(IWI_POLICY_WME); 2604 if (ic->ic_flags & IEEE80211_F_WPA) 2605 assoc.policy |= htole16(IWI_POLICY_WPA); 2606 if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2607 assoc.type = IWI_HC_IBSS_START; 2608 else 2609 assoc.type = IWI_HC_ASSOC; 2610 memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2611 2612 if (ic->ic_opmode == IEEE80211_M_IBSS) 2613 capinfo = IEEE80211_CAPINFO_IBSS; 2614 else 2615 capinfo = IEEE80211_CAPINFO_ESS; 2616 if (ic->ic_flags & IEEE80211_F_PRIVACY) 2617 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2618 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2619 IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2620 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2621 if (ic->ic_flags & IEEE80211_F_SHSLOT) 2622 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2623 assoc.capinfo = htole16(capinfo); 2624 2625 assoc.lintval = htole16(ic->ic_lintval); 2626 assoc.intval = htole16(ni->ni_intval); 2627 IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2628 if (ic->ic_opmode == IEEE80211_M_IBSS) 2629 IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2630 else 2631 IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2632 2633 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 2634 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2635 assoc.type == IWI_HC_IBSS_START ? "Start" : "Join", 2636 ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), 2637 assoc.chan, le16toh(assoc.policy), assoc.auth, 2638 le16toh(assoc.capinfo), le16toh(assoc.lintval), 2639 le16toh(assoc.intval))); 2640 2641 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2642 } 2643 2644 static int 2645 iwi_init(struct ifnet *ifp) 2646 { 2647 struct iwi_softc *sc = ifp->if_softc; 2648 struct ieee80211com *ic = &sc->sc_ic; 2649 struct iwi_firmware *fw = &sc->fw; 2650 int i, error; 2651 2652 /* exit immediately if firmware has not been ioctl'd */ 2653 if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2654 if ((error = iwi_cache_firmware(sc)) != 0) { 2655 aprint_error_dev(sc->sc_dev, 2656 "could not cache the firmware\n"); 2657 goto fail; 2658 } 2659 } 2660 2661 iwi_stop(ifp, 0); 2662 2663 if ((error = iwi_reset(sc)) != 0) { 2664 aprint_error_dev(sc->sc_dev, "could not reset adapter\n"); 2665 goto fail; 2666 } 2667 2668 if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { 2669 aprint_error_dev(sc->sc_dev, "could not load boot firmware\n"); 2670 goto fail; 2671 } 2672 2673 if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { 2674 aprint_error_dev(sc->sc_dev, "could not load microcode\n"); 2675 goto fail; 2676 } 2677 2678 iwi_stop_master(sc); 2679 2680 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); 2681 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2682 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2683 2684 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); 2685 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2686 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2687 2688 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); 2689 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2690 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2691 2692 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); 2693 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2694 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2695 2696 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); 2697 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2698 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2699 2700 for (i = 0; i < sc->rxq.count; i++) 2701 CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, 2702 sc->rxq.data[i].map->dm_segs[0].ds_addr); 2703 2704 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); 2705 2706 if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { 2707 aprint_error_dev(sc->sc_dev, "could not load main firmware\n"); 2708 goto fail; 2709 } 2710 2711 sc->flags |= IWI_FLAG_FW_INITED; 2712 2713 if ((error = iwi_config(sc)) != 0) { 2714 aprint_error_dev(sc->sc_dev, "device configuration failed\n"); 2715 goto fail; 2716 } 2717 2718 ic->ic_state = IEEE80211_S_INIT; 2719 2720 ifp->if_flags &= ~IFF_OACTIVE; 2721 ifp->if_flags |= IFF_RUNNING; 2722 2723 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2724 if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2725 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2726 } else 2727 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2728 2729 return 0; 2730 2731 fail: ifp->if_flags &= ~IFF_UP; 2732 iwi_stop(ifp, 0); 2733 2734 return error; 2735 } 2736 2737 2738 /* 2739 * Return whether or not the radio is enabled in hardware 2740 * (i.e. the rfkill switch is "off"). 2741 */ 2742 static int 2743 iwi_getrfkill(struct iwi_softc *sc) 2744 { 2745 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 2746 } 2747 2748 static int 2749 iwi_sysctl_radio(SYSCTLFN_ARGS) 2750 { 2751 struct sysctlnode node; 2752 struct iwi_softc *sc; 2753 int val, error; 2754 2755 node = *rnode; 2756 sc = (struct iwi_softc *)node.sysctl_data; 2757 2758 val = !iwi_getrfkill(sc); 2759 2760 node.sysctl_data = &val; 2761 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 2762 2763 if (error || newp == NULL) 2764 return error; 2765 2766 return 0; 2767 } 2768 2769 #ifdef IWI_DEBUG 2770 SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup") 2771 { 2772 int rc; 2773 const struct sysctlnode *rnode; 2774 const struct sysctlnode *cnode; 2775 2776 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2777 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2778 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2779 goto err; 2780 2781 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2782 CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi", 2783 SYSCTL_DESCR("iwi global controls"), 2784 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2785 goto err; 2786 2787 /* control debugging printfs */ 2788 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2789 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2790 "debug", SYSCTL_DESCR("Enable debugging output"), 2791 NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) 2792 goto err; 2793 2794 return; 2795 err: 2796 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2797 } 2798 2799 #endif /* IWI_DEBUG */ 2800 2801 /* 2802 * Add sysctl knobs. 2803 */ 2804 static void 2805 iwi_sysctlattach(struct iwi_softc *sc) 2806 { 2807 int rc; 2808 const struct sysctlnode *rnode; 2809 const struct sysctlnode *cnode; 2810 2811 struct sysctllog **clog = &sc->sc_sysctllog; 2812 2813 if ((rc = sysctl_createv(clog, 0, NULL, &rnode, 2814 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 2815 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 2816 goto err; 2817 2818 if ((rc = sysctl_createv(clog, 0, &rnode, &rnode, 2819 CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), 2820 SYSCTL_DESCR("iwi controls and statistics"), 2821 NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0) 2822 goto err; 2823 2824 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2825 CTLFLAG_PERMANENT, CTLTYPE_INT, "radio", 2826 SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)"), 2827 iwi_sysctl_radio, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0) 2828 goto err; 2829 2830 sc->dwelltime = 100; 2831 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2832 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2833 "dwell", SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning"), 2834 NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) 2835 goto err; 2836 2837 sc->bluetooth = 0; 2838 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2839 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2840 "bluetooth", SYSCTL_DESCR("bluetooth coexistence"), 2841 NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) 2842 goto err; 2843 2844 sc->antenna = IWI_ANTENNA_AUTO; 2845 if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, 2846 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, 2847 "antenna", SYSCTL_DESCR("antenna (0=auto)"), 2848 NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) 2849 goto err; 2850 2851 return; 2852 err: 2853 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 2854 } 2855 2856 static void 2857 iwi_stop(struct ifnet *ifp, int disable) 2858 { 2859 struct iwi_softc *sc = ifp->if_softc; 2860 struct ieee80211com *ic = &sc->sc_ic; 2861 2862 IWI_LED_OFF(sc); 2863 2864 iwi_stop_master(sc); 2865 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); 2866 2867 /* reset rings */ 2868 iwi_reset_cmd_ring(sc, &sc->cmdq); 2869 iwi_reset_tx_ring(sc, &sc->txq[0]); 2870 iwi_reset_tx_ring(sc, &sc->txq[1]); 2871 iwi_reset_tx_ring(sc, &sc->txq[2]); 2872 iwi_reset_tx_ring(sc, &sc->txq[3]); 2873 iwi_reset_rx_ring(sc, &sc->rxq); 2874 2875 ifp->if_timer = 0; 2876 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2877 2878 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2879 } 2880 2881 static void 2882 iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) 2883 { 2884 uint32_t val; 2885 2886 val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); 2887 2888 switch (sc->nictype) { 2889 case 1: 2890 /* special NIC type: reversed leds */ 2891 if (state == IWI_LED_ACTIVITY) { 2892 state &= ~IWI_LED_ACTIVITY; 2893 state |= IWI_LED_ASSOCIATED; 2894 } else if (state == IWI_LED_ASSOCIATED) { 2895 state &= ~IWI_LED_ASSOCIATED; 2896 state |= IWI_LED_ACTIVITY; 2897 } 2898 /* and ignore toggle effect */ 2899 val |= state; 2900 break; 2901 case 0: 2902 case 2: 2903 case 3: 2904 case 4: 2905 val = (toggle && (val & state)) ? val & ~state : val | state; 2906 break; 2907 default: 2908 aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n", 2909 sc->nictype); 2910 return; 2911 break; 2912 } 2913 2914 MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); 2915 2916 return; 2917 } 2918 2919 SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula") 2920 { 2921 const struct sysctlnode *rnode; 2922 const struct sysctlnode *cnode; 2923 2924 sysctl_createv(NULL, 0, NULL, &rnode, 2925 CTLFLAG_PERMANENT, 2926 CTLTYPE_NODE, "hw", 2927 NULL, 2928 NULL, 0, 2929 NULL, 0, 2930 CTL_HW, CTL_EOL); 2931 2932 sysctl_createv(NULL, 0, &rnode, &rnode, 2933 CTLFLAG_PERMANENT, 2934 CTLTYPE_NODE, "iwi", 2935 NULL, 2936 NULL, 0, 2937 NULL, 0, 2938 CTL_CREATE, CTL_EOL); 2939 2940 sysctl_createv(NULL, 0, &rnode, &cnode, 2941 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 2942 CTLTYPE_INT, "accept_eula", 2943 SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware"), 2944 NULL, 0, 2945 &iwi_accept_eula, sizeof(iwi_accept_eula), 2946 CTL_CREATE, CTL_EOL); 2947 } 2948