1 /*- 2 * Copyright (c) 2004, 2005 3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 4 * Copyright (c) 2005-2006 Sam Leffler, Errno Consulting 5 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org> 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 * $FreeBSD: src/sys/dev/iwi/if_iwi.c,v 1.72 2009/07/10 15:28:33 rpaulo Exp $ 30 */ 31 32 /*- 33 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 34 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 35 */ 36 37 #include <sys/param.h> 38 #include <sys/sysctl.h> 39 #include <sys/sockio.h> 40 #include <sys/mbuf.h> 41 #include <sys/kernel.h> 42 #include <sys/socket.h> 43 #include <sys/systm.h> 44 #include <sys/malloc.h> 45 #include <sys/lock.h> 46 #include <sys/mutex.h> 47 #include <sys/module.h> 48 #include <sys/bus.h> 49 #include <sys/endian.h> 50 #include <sys/proc.h> 51 #include <sys/mount.h> 52 #include <sys/namei.h> 53 #include <sys/linker.h> 54 #include <sys/firmware.h> 55 #include <sys/taskqueue.h> 56 #include <sys/devfs.h> 57 58 #include <sys/resource.h> 59 #include <sys/rman.h> 60 61 #include <bus/pci/pcireg.h> 62 #include <bus/pci/pcivar.h> 63 64 #include <net/bpf.h> 65 #include <net/if.h> 66 #include <net/if_arp.h> 67 #include <net/ethernet.h> 68 #include <net/if_dl.h> 69 #include <net/if_media.h> 70 #include <net/if_types.h> 71 #include <net/ifq_var.h> 72 73 #include <netproto/802_11/ieee80211_var.h> 74 #include <netproto/802_11/ieee80211_radiotap.h> 75 #include <netproto/802_11/ieee80211_input.h> 76 #include <netproto/802_11/ieee80211_regdomain.h> 77 78 #include <netinet/in.h> 79 #include <netinet/in_systm.h> 80 #include <netinet/in_var.h> 81 #include <netinet/ip.h> 82 #include <netinet/if_ether.h> 83 84 #include <dev/netif/iwi/if_iwireg.h> 85 #include <dev/netif/iwi/if_iwivar.h> 86 87 #define IWI_DEBUG 88 #ifdef IWI_DEBUG 89 #define DPRINTF(x) do { if (iwi_debug > 0) kprintf x; } while (0) 90 #define DPRINTFN(n, x) do { if (iwi_debug >= (n)) kprintf x; } while (0) 91 int iwi_debug = 0; 92 SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); 93 94 static const char *iwi_fw_states[] = { 95 "IDLE", /* IWI_FW_IDLE */ 96 "LOADING", /* IWI_FW_LOADING */ 97 "ASSOCIATING", /* IWI_FW_ASSOCIATING */ 98 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */ 99 "SCANNING", /* IWI_FW_SCANNING */ 100 }; 101 #else 102 #define DPRINTF(x) 103 #define DPRINTFN(n, x) 104 #endif 105 106 MODULE_DEPEND(iwi, pci, 1, 1, 1); 107 MODULE_DEPEND(iwi, wlan, 1, 1, 1); 108 MODULE_DEPEND(iwi, firmware, 1, 1, 1); 109 110 enum { 111 IWI_LED_TX, 112 IWI_LED_RX, 113 IWI_LED_POLL, 114 }; 115 116 struct iwi_ident { 117 uint16_t vendor; 118 uint16_t device; 119 const char *name; 120 }; 121 122 static const struct iwi_ident iwi_ident_table[] = { 123 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, 124 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, 125 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, 126 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, 127 128 { 0, 0, NULL } 129 }; 130 131 static struct ieee80211vap *iwi_vap_create(struct ieee80211com *, 132 const char name[IFNAMSIZ], int unit, int opmode, int flags, 133 const uint8_t bssid[IEEE80211_ADDR_LEN], 134 const uint8_t mac[IEEE80211_ADDR_LEN]); 135 static void iwi_vap_delete(struct ieee80211vap *); 136 static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 137 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 138 int); 139 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 140 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 141 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 142 int, bus_addr_t, bus_addr_t); 143 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 144 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 145 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 146 int); 147 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 148 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 149 static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *, 150 const uint8_t [IEEE80211_ADDR_LEN]); 151 static void iwi_node_free(struct ieee80211_node *); 152 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 153 static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 154 static void iwi_wme_init(struct iwi_softc *); 155 static int iwi_wme_setparams(struct iwi_softc *, struct ieee80211com *); 156 static void iwi_update_wme_task(void *, int); 157 static int iwi_wme_update(struct ieee80211com *); 158 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 159 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 160 struct iwi_frame *); 161 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 162 static void iwi_rx_intr(struct iwi_softc *); 163 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 164 static void iwi_intr(void *); 165 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t); 166 static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int); 167 static int iwi_tx_start(struct ifnet *, struct mbuf *, 168 struct ieee80211_node *, int); 169 static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *, 170 const struct ieee80211_bpf_params *); 171 static void iwi_start_locked(struct ifnet *); 172 static void iwi_start(struct ifnet *); 173 static void iwi_watchdog(void *); 174 static int iwi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *ucred); 175 static void iwi_stop_master(struct iwi_softc *); 176 static int iwi_reset(struct iwi_softc *); 177 static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *); 178 static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *); 179 static void iwi_release_fw_dma(struct iwi_softc *sc); 180 static int iwi_config(struct iwi_softc *); 181 static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode); 182 static void iwi_put_firmware(struct iwi_softc *); 183 static int iwi_scanchan(struct iwi_softc *, unsigned long, int); 184 static void iwi_scan_start(struct ieee80211com *); 185 static void iwi_scan_end(struct ieee80211com *); 186 static void iwi_set_channel(struct ieee80211com *); 187 static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell); 188 static void iwi_scan_mindwell(struct ieee80211_scan_state *); 189 static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *); 190 static void iwi_disassoc_task(void *, int); 191 static int iwi_disassociate(struct iwi_softc *, int quiet); 192 static void iwi_init_locked(struct iwi_softc *); 193 static void iwi_init(void *); 194 static int iwi_init_fw_dma(struct iwi_softc *, int); 195 static void iwi_stop_locked(void *); 196 static void iwi_stop(struct iwi_softc *); 197 static void iwi_restart_task(void *, int); 198 static int iwi_getrfkill(struct iwi_softc *); 199 static void iwi_radio_on_task(void *, int); 200 static void iwi_radio_off_task(void *, int); 201 static void iwi_sysctlattach(struct iwi_softc *); 202 static void iwi_led_event(struct iwi_softc *, int); 203 static void iwi_ledattach(struct iwi_softc *); 204 205 static int iwi_probe(device_t); 206 static int iwi_attach(device_t); 207 static int iwi_detach(device_t); 208 static int iwi_shutdown(device_t); 209 static int iwi_suspend(device_t); 210 static int iwi_resume(device_t); 211 212 static device_method_t iwi_methods[] = { 213 /* Device interface */ 214 DEVMETHOD(device_probe, iwi_probe), 215 DEVMETHOD(device_attach, iwi_attach), 216 DEVMETHOD(device_detach, iwi_detach), 217 DEVMETHOD(device_shutdown, iwi_shutdown), 218 DEVMETHOD(device_suspend, iwi_suspend), 219 DEVMETHOD(device_resume, iwi_resume), 220 221 { 0, 0 } 222 }; 223 224 static driver_t iwi_driver = { 225 "iwi", 226 iwi_methods, 227 sizeof (struct iwi_softc) 228 }; 229 230 static devclass_t iwi_devclass; 231 232 DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL); 233 234 static __inline uint8_t 235 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 236 { 237 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 238 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 239 } 240 241 static __inline uint32_t 242 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 243 { 244 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 245 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 246 } 247 248 static int 249 iwi_probe(device_t dev) 250 { 251 const struct iwi_ident *ident; 252 253 wlan_serialize_enter(); 254 for (ident = iwi_ident_table; ident->name != NULL; ident++) { 255 if (pci_get_vendor(dev) == ident->vendor && 256 pci_get_device(dev) == ident->device) { 257 device_set_desc(dev, ident->name); 258 wlan_serialize_exit(); 259 return 0; 260 } 261 } 262 wlan_serialize_exit(); 263 return ENXIO; 264 } 265 266 /* Base Address Register */ 267 #define IWI_PCI_BAR0 0x10 268 269 static int 270 iwi_attach(device_t dev) 271 { 272 struct iwi_softc *sc = device_get_softc(dev); 273 struct ifnet *ifp; 274 struct ieee80211com *ic; 275 uint16_t val; 276 int i, error; 277 uint8_t bands; 278 uint8_t macaddr[IEEE80211_ADDR_LEN]; 279 280 wlan_serialize_enter(); 281 282 sc->sc_dev = dev; 283 284 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 285 if (ifp == NULL) { 286 device_printf(dev, "can not if_alloc()\n"); 287 wlan_serialize_exit(); 288 return ENXIO; 289 } 290 ic = ifp->if_l2com; 291 292 devfs_clone_bitmap_init(&sc->sc_unr); 293 294 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on_task, sc); 295 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off_task, sc); 296 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart_task, sc); 297 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc_task, sc); 298 TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme_task, sc); 299 300 callout_init(&sc->sc_wdtimer_callout); 301 callout_init(&sc->sc_rftimer_callout); 302 303 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 304 device_printf(dev, "chip is in D%d power mode " 305 "-- setting to D0\n", pci_get_powerstate(dev)); 306 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 307 } 308 309 pci_write_config(dev, 0x41, 0, 1); 310 311 /* enable bus-mastering */ 312 pci_enable_busmaster(dev); 313 314 sc->mem_rid = IWI_PCI_BAR0; 315 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 316 RF_ACTIVE); 317 if (sc->mem == NULL) { 318 device_printf(dev, "could not allocate memory resource\n"); 319 goto fail; 320 } 321 322 sc->sc_st = rman_get_bustag(sc->mem); 323 sc->sc_sh = rman_get_bushandle(sc->mem); 324 325 sc->irq_rid = 0; 326 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 327 RF_ACTIVE | RF_SHAREABLE); 328 if (sc->irq == NULL) { 329 device_printf(dev, "could not allocate interrupt resource\n"); 330 goto fail; 331 } 332 333 if (iwi_reset(sc) != 0) { 334 device_printf(dev, "could not reset adapter\n"); 335 goto fail; 336 } 337 338 /* 339 * Allocate rings. 340 */ 341 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 342 device_printf(dev, "could not allocate Cmd ring\n"); 343 goto fail; 344 } 345 346 for (i = 0; i < 4; i++) { 347 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT, 348 IWI_CSR_TX1_RIDX + i * 4, 349 IWI_CSR_TX1_WIDX + i * 4); 350 if (error != 0) { 351 device_printf(dev, "could not allocate Tx ring %d\n", 352 i+i); 353 goto fail; 354 } 355 } 356 357 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 358 device_printf(dev, "could not allocate Rx ring\n"); 359 goto fail; 360 } 361 362 iwi_wme_init(sc); 363 364 ifp->if_softc = sc; 365 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 366 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 367 ifp->if_init = iwi_init; 368 ifp->if_ioctl = iwi_ioctl; 369 ifp->if_start = iwi_start; 370 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); 371 ifq_set_ready(&ifp->if_snd); 372 373 ic->ic_ifp = ifp; 374 ic->ic_opmode = IEEE80211_M_STA; 375 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 376 377 /* set device capabilities */ 378 ic->ic_caps = 379 IEEE80211_C_STA /* station mode supported */ 380 | IEEE80211_C_IBSS /* IBSS mode supported */ 381 | IEEE80211_C_MONITOR /* monitor mode supported */ 382 | IEEE80211_C_PMGT /* power save supported */ 383 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 384 | IEEE80211_C_WPA /* 802.11i */ 385 | IEEE80211_C_WME /* 802.11e */ 386 #if 0 387 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 388 #endif 389 ; 390 391 /* read MAC address from EEPROM */ 392 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 393 macaddr[0] = val & 0xff; 394 macaddr[1] = val >> 8; 395 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 396 macaddr[2] = val & 0xff; 397 macaddr[3] = val >> 8; 398 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 399 macaddr[4] = val & 0xff; 400 macaddr[5] = val >> 8; 401 402 bands = 0; 403 setbit(&bands, IEEE80211_MODE_11B); 404 setbit(&bands, IEEE80211_MODE_11G); 405 if (pci_get_device(dev) >= 0x4223) 406 setbit(&bands, IEEE80211_MODE_11A); 407 ieee80211_init_channels(ic, NULL, &bands); 408 409 ieee80211_ifattach(ic, macaddr); 410 /* override default methods */ 411 ic->ic_node_alloc = iwi_node_alloc; 412 sc->sc_node_free = ic->ic_node_free; 413 ic->ic_node_free = iwi_node_free; 414 ic->ic_raw_xmit = iwi_raw_xmit; 415 ic->ic_scan_start = iwi_scan_start; 416 ic->ic_scan_end = iwi_scan_end; 417 ic->ic_set_channel = iwi_set_channel; 418 ic->ic_scan_curchan = iwi_scan_curchan; 419 ic->ic_scan_mindwell = iwi_scan_mindwell; 420 ic->ic_wme.wme_update = iwi_wme_update; 421 422 ic->ic_vap_create = iwi_vap_create; 423 ic->ic_vap_delete = iwi_vap_delete; 424 425 ieee80211_radiotap_attach(ic, 426 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 427 IWI_TX_RADIOTAP_PRESENT, 428 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 429 IWI_RX_RADIOTAP_PRESENT); 430 431 iwi_sysctlattach(sc); 432 iwi_ledattach(sc); 433 434 /* 435 * Hook our interrupt after all initialization is complete. 436 */ 437 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, 438 iwi_intr, sc, &sc->sc_ih, &wlan_global_serializer); 439 if (error != 0) { 440 device_printf(dev, "could not set up interrupt\n"); 441 goto fail; 442 } 443 444 if (bootverbose) 445 ieee80211_announce(ic); 446 447 wlan_serialize_exit(); 448 return 0; 449 fail: 450 /* XXX fix */ 451 wlan_serialize_exit(); 452 iwi_detach(dev); 453 return ENXIO; 454 } 455 456 static int 457 iwi_detach(device_t dev) 458 { 459 struct iwi_softc *sc = device_get_softc(dev); 460 struct ifnet *ifp = sc->sc_ifp; 461 struct ieee80211com *ic = ifp->if_l2com; 462 463 wlan_serialize_enter(); 464 465 /* NB: do early to drain any pending tasks */ 466 ieee80211_draintask(ic, &sc->sc_radiontask); 467 ieee80211_draintask(ic, &sc->sc_radiofftask); 468 ieee80211_draintask(ic, &sc->sc_restarttask); 469 ieee80211_draintask(ic, &sc->sc_disassoctask); 470 471 iwi_stop(sc); 472 473 ieee80211_ifdetach(ic); 474 475 iwi_put_firmware(sc); 476 iwi_release_fw_dma(sc); 477 478 iwi_free_cmd_ring(sc, &sc->cmdq); 479 iwi_free_tx_ring(sc, &sc->txq[0]); 480 iwi_free_tx_ring(sc, &sc->txq[1]); 481 iwi_free_tx_ring(sc, &sc->txq[2]); 482 iwi_free_tx_ring(sc, &sc->txq[3]); 483 iwi_free_rx_ring(sc, &sc->rxq); 484 485 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 486 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 487 488 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 489 490 devfs_clone_bitmap_uninit(&sc->sc_unr); 491 492 if (sc->sc_sysctl_tree != NULL) 493 sysctl_ctx_free(&sc->sc_sysctl_ctx); 494 495 if_free(ifp); 496 497 wlan_serialize_exit(); 498 return 0; 499 } 500 501 static struct ieee80211vap * 502 iwi_vap_create(struct ieee80211com *ic, 503 const char name[IFNAMSIZ], int unit, int opmode, int flags, 504 const uint8_t bssid[IEEE80211_ADDR_LEN], 505 const uint8_t mac[IEEE80211_ADDR_LEN]) 506 { 507 struct ifnet *ifp = ic->ic_ifp; 508 struct iwi_softc *sc = ifp->if_softc; 509 struct iwi_vap *ivp; 510 struct ieee80211vap *vap; 511 int i; 512 513 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 514 return NULL; 515 /* 516 * Get firmware image (and possibly dma memory) on mode change. 517 */ 518 if (iwi_get_firmware(sc, opmode)) 519 return NULL; 520 /* allocate DMA memory for mapping firmware image */ 521 i = sc->fw_fw.size; 522 if (sc->fw_boot.size > i) 523 i = sc->fw_boot.size; 524 /* XXX do we dma the ucode as well ? */ 525 if (sc->fw_uc.size > i) 526 i = sc->fw_uc.size; 527 if (iwi_init_fw_dma(sc, i)) 528 return NULL; 529 530 ivp = (struct iwi_vap *) kmalloc(sizeof(struct iwi_vap), 531 M_80211_VAP, M_WAITOK | M_ZERO); 532 if (ivp == NULL) 533 return NULL; 534 vap = &ivp->iwi_vap; 535 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 536 /* override the default, the setting comes from the linux driver */ 537 vap->iv_bmissthreshold = 24; 538 /* override with driver methods */ 539 ivp->iwi_newstate = vap->iv_newstate; 540 vap->iv_newstate = iwi_newstate; 541 542 /* complete setup */ 543 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status); 544 ic->ic_opmode = opmode; 545 return vap; 546 } 547 548 static void 549 iwi_vap_delete(struct ieee80211vap *vap) 550 { 551 struct iwi_vap *ivp = IWI_VAP(vap); 552 553 ieee80211_vap_detach(vap); 554 kfree(ivp, M_80211_VAP); 555 } 556 557 static void 558 iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 559 { 560 if (error != 0) 561 return; 562 563 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 564 565 *(bus_addr_t *)arg = segs[0].ds_addr; 566 } 567 568 static int 569 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) 570 { 571 int error; 572 573 ring->count = count; 574 ring->queued = 0; 575 ring->cur = ring->next = 0; 576 577 error = bus_dma_tag_create(NULL, 4, 0, 578 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 579 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 580 0 , &ring->desc_dmat); 581 if (error != 0) { 582 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 583 goto fail; 584 } 585 586 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 587 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 588 if (error != 0) { 589 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 590 goto fail; 591 } 592 593 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 594 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 595 if (error != 0) { 596 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 597 goto fail; 598 } 599 600 return 0; 601 602 fail: iwi_free_cmd_ring(sc, ring); 603 return error; 604 } 605 606 static void 607 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 608 { 609 ring->queued = 0; 610 ring->cur = ring->next = 0; 611 } 612 613 static void 614 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 615 { 616 if (ring->desc != NULL) { 617 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 618 BUS_DMASYNC_POSTWRITE); 619 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 620 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 621 } 622 623 if (ring->desc_dmat != NULL) 624 bus_dma_tag_destroy(ring->desc_dmat); 625 } 626 627 static int 628 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, 629 bus_addr_t csr_ridx, bus_addr_t csr_widx) 630 { 631 int i, error; 632 633 ring->count = count; 634 ring->queued = 0; 635 ring->cur = ring->next = 0; 636 ring->csr_ridx = csr_ridx; 637 ring->csr_widx = csr_widx; 638 639 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 640 BUS_SPACE_MAXADDR, NULL, NULL, count * IWI_TX_DESC_SIZE, 1, 641 count * IWI_TX_DESC_SIZE, 0, &ring->desc_dmat); 642 if (error != 0) { 643 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 644 goto fail; 645 } 646 647 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 648 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 649 if (error != 0) { 650 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 651 goto fail; 652 } 653 654 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 655 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 656 if (error != 0) { 657 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 658 goto fail; 659 } 660 661 ring->data = kmalloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 662 M_WAITOK | M_ZERO); 663 664 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 665 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IWI_MAX_NSEG, 666 MCLBYTES, 0, &ring->data_dmat); 667 if (error != 0) { 668 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 669 goto fail; 670 } 671 672 for (i = 0; i < count; i++) { 673 error = bus_dmamap_create(ring->data_dmat, 0, 674 &ring->data[i].map); 675 if (error != 0) { 676 device_printf(sc->sc_dev, "could not create DMA map\n"); 677 goto fail; 678 } 679 } 680 681 return 0; 682 683 fail: iwi_free_tx_ring(sc, ring); 684 return error; 685 } 686 687 static void 688 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 689 { 690 struct iwi_tx_data *data; 691 int i; 692 693 for (i = 0; i < ring->count; i++) { 694 data = &ring->data[i]; 695 696 if (data->m != NULL) { 697 bus_dmamap_sync(ring->data_dmat, data->map, 698 BUS_DMASYNC_POSTWRITE); 699 bus_dmamap_unload(ring->data_dmat, data->map); 700 m_freem(data->m); 701 data->m = NULL; 702 } 703 704 if (data->ni != NULL) { 705 ieee80211_free_node(data->ni); 706 data->ni = NULL; 707 } 708 } 709 710 ring->queued = 0; 711 ring->cur = ring->next = 0; 712 } 713 714 static void 715 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 716 { 717 struct iwi_tx_data *data; 718 int i; 719 720 if (ring->desc != NULL) { 721 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 722 BUS_DMASYNC_POSTWRITE); 723 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 724 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 725 } 726 727 if (ring->desc_dmat != NULL) 728 bus_dma_tag_destroy(ring->desc_dmat); 729 730 if (ring->data != NULL) { 731 for (i = 0; i < ring->count; i++) { 732 data = &ring->data[i]; 733 734 if (data->m != NULL) { 735 bus_dmamap_sync(ring->data_dmat, data->map, 736 BUS_DMASYNC_POSTWRITE); 737 bus_dmamap_unload(ring->data_dmat, data->map); 738 m_freem(data->m); 739 } 740 741 if (data->ni != NULL) 742 ieee80211_free_node(data->ni); 743 744 if (data->map != NULL) 745 bus_dmamap_destroy(ring->data_dmat, data->map); 746 } 747 748 kfree(ring->data, M_DEVBUF); 749 } 750 751 if (ring->data_dmat != NULL) 752 bus_dma_tag_destroy(ring->data_dmat); 753 } 754 755 static int 756 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 757 { 758 struct iwi_rx_data *data; 759 int i, error; 760 761 ring->count = count; 762 ring->cur = 0; 763 764 ring->data = kmalloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 765 M_WAITOK | M_ZERO); 766 767 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 768 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 769 0, &ring->data_dmat); 770 if (error != 0) { 771 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 772 goto fail; 773 } 774 775 for (i = 0; i < count; i++) { 776 data = &ring->data[i]; 777 778 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 779 if (error != 0) { 780 device_printf(sc->sc_dev, "could not create DMA map\n"); 781 goto fail; 782 } 783 784 data->m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); 785 if (data->m == NULL) { 786 device_printf(sc->sc_dev, 787 "could not allocate rx mbuf\n"); 788 error = ENOMEM; 789 goto fail; 790 } 791 792 error = bus_dmamap_load(ring->data_dmat, data->map, 793 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 794 &data->physaddr, 0); 795 if (error != 0) { 796 device_printf(sc->sc_dev, 797 "could not load rx buf DMA map"); 798 goto fail; 799 } 800 801 data->reg = IWI_CSR_RX_BASE + i * 4; 802 } 803 804 return 0; 805 806 fail: iwi_free_rx_ring(sc, ring); 807 return error; 808 } 809 810 static void 811 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 812 { 813 ring->cur = 0; 814 } 815 816 static void 817 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 818 { 819 struct iwi_rx_data *data; 820 int i; 821 822 if (ring->data != NULL) { 823 for (i = 0; i < ring->count; i++) { 824 data = &ring->data[i]; 825 826 if (data->m != NULL) { 827 bus_dmamap_sync(ring->data_dmat, data->map, 828 BUS_DMASYNC_POSTREAD); 829 bus_dmamap_unload(ring->data_dmat, data->map); 830 m_freem(data->m); 831 } 832 833 if (data->map != NULL) 834 bus_dmamap_destroy(ring->data_dmat, data->map); 835 } 836 837 kfree(ring->data, M_DEVBUF); 838 } 839 840 if (ring->data_dmat != NULL) 841 bus_dma_tag_destroy(ring->data_dmat); 842 } 843 844 static int 845 iwi_shutdown(device_t dev) 846 { 847 struct iwi_softc *sc = device_get_softc(dev); 848 849 wlan_serialize_enter(); 850 iwi_stop(sc); 851 iwi_put_firmware(sc); /* ??? XXX */ 852 wlan_serialize_exit(); 853 854 return 0; 855 } 856 857 static int 858 iwi_suspend(device_t dev) 859 { 860 struct iwi_softc *sc = device_get_softc(dev); 861 862 wlan_serialize_enter(); 863 iwi_stop(sc); 864 wlan_serialize_exit(); 865 866 return 0; 867 } 868 869 static int 870 iwi_resume(device_t dev) 871 { 872 struct iwi_softc *sc = device_get_softc(dev); 873 struct ifnet *ifp = sc->sc_ifp; 874 875 wlan_serialize_enter(); 876 pci_write_config(dev, 0x41, 0, 1); 877 878 if (ifp->if_flags & IFF_UP) 879 iwi_init(sc); 880 881 wlan_serialize_exit(); 882 return 0; 883 } 884 885 static struct ieee80211_node * 886 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 887 { 888 struct iwi_node *in; 889 890 in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 891 if (in == NULL) 892 return NULL; 893 /* XXX assign sta table entry for adhoc */ 894 in->in_station = -1; 895 896 return &in->in_node; 897 } 898 899 static void 900 iwi_node_free(struct ieee80211_node *ni) 901 { 902 struct ieee80211com *ic = ni->ni_ic; 903 struct iwi_softc *sc = ic->ic_ifp->if_softc; 904 struct iwi_node *in = (struct iwi_node *)ni; 905 906 if (in->in_station != -1) { 907 DPRINTF(("%s mac %6D station %u\n", __func__, 908 ni->ni_macaddr, ":", in->in_station)); 909 devfs_clone_bitmap_put(&sc->sc_unr, in->in_station); 910 } 911 912 sc->sc_node_free(ni); 913 } 914 915 /* 916 * Convert h/w rate code to IEEE rate code. 917 */ 918 static int 919 iwi_cvtrate(int iwirate) 920 { 921 switch (iwirate) { 922 case IWI_RATE_DS1: return 2; 923 case IWI_RATE_DS2: return 4; 924 case IWI_RATE_DS5: return 11; 925 case IWI_RATE_DS11: return 22; 926 case IWI_RATE_OFDM6: return 12; 927 case IWI_RATE_OFDM9: return 18; 928 case IWI_RATE_OFDM12: return 24; 929 case IWI_RATE_OFDM18: return 36; 930 case IWI_RATE_OFDM24: return 48; 931 case IWI_RATE_OFDM36: return 72; 932 case IWI_RATE_OFDM48: return 96; 933 case IWI_RATE_OFDM54: return 108; 934 } 935 return 0; 936 } 937 938 /* 939 * The firmware automatically adapts the transmit speed. We report its current 940 * value here. 941 */ 942 static void 943 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 944 { 945 struct ieee80211vap *vap = ifp->if_softc; 946 struct ieee80211com *ic = vap->iv_ic; 947 struct iwi_softc *sc = ic->ic_ifp->if_softc; 948 949 /* read current transmission rate from adapter */ 950 vap->iv_bss->ni_txrate = 951 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 952 ieee80211_media_status(ifp, imr); 953 } 954 955 static int 956 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 957 { 958 struct iwi_vap *ivp = IWI_VAP(vap); 959 struct ieee80211com *ic = vap->iv_ic; 960 struct ifnet *ifp = ic->ic_ifp; 961 struct iwi_softc *sc = ifp->if_softc; 962 963 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 964 ieee80211_state_name[vap->iv_state], 965 ieee80211_state_name[nstate], sc->flags)); 966 967 switch (nstate) { 968 case IEEE80211_S_INIT: 969 /* 970 * NB: don't try to do this if iwi_stop_master has 971 * shutdown the firmware and disabled interrupts. 972 */ 973 if (vap->iv_state == IEEE80211_S_RUN && 974 (sc->flags & IWI_FLAG_FW_INITED)) 975 iwi_disassociate(sc, 0); 976 break; 977 case IEEE80211_S_AUTH: 978 iwi_auth_and_assoc(sc, vap); 979 break; 980 case IEEE80211_S_RUN: 981 if (vap->iv_opmode == IEEE80211_M_IBSS && 982 vap->iv_state == IEEE80211_S_SCAN) { 983 /* 984 * XXX when joining an ibss network we are called 985 * with a SCAN -> RUN transition on scan complete. 986 * Use that to call iwi_auth_and_assoc. On completing 987 * the join we are then called again with an 988 * AUTH -> RUN transition and we want to do nothing. 989 * This is all totally bogus and needs to be redone. 990 */ 991 iwi_auth_and_assoc(sc, vap); 992 } 993 break; 994 case IEEE80211_S_ASSOC: 995 /* 996 * If we are transitioning from AUTH then just wait 997 * for the ASSOC status to come back from the firmware. 998 * Otherwise we need to issue the association request. 999 */ 1000 if (vap->iv_state == IEEE80211_S_AUTH) 1001 break; 1002 iwi_auth_and_assoc(sc, vap); 1003 break; 1004 default: 1005 break; 1006 } 1007 1008 return ivp->iwi_newstate(vap, nstate, arg); 1009 } 1010 1011 /* 1012 * WME parameters coming from IEEE 802.11e specification. These values are 1013 * already declared in ieee80211_proto.c, but they are static so they can't 1014 * be reused here. 1015 */ 1016 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 1017 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ 1018 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ 1019 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ 1020 { 0, 2, 3, 4, 102 } /* WME_AC_VO */ 1021 }; 1022 1023 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 1024 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ 1025 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ 1026 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ 1027 { 0, 2, 2, 3, 47 } /* WME_AC_VO */ 1028 }; 1029 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 1030 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1031 1032 static void 1033 iwi_wme_init(struct iwi_softc *sc) 1034 { 1035 const struct wmeParams *wmep; 1036 int ac; 1037 1038 memset(sc->wme, 0, sizeof sc->wme); 1039 for (ac = 0; ac < WME_NUM_AC; ac++) { 1040 /* set WME values for CCK modulation */ 1041 wmep = &iwi_wme_cck_params[ac]; 1042 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn; 1043 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1044 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1045 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1046 sc->wme[1].acm[ac] = wmep->wmep_acm; 1047 1048 /* set WME values for OFDM modulation */ 1049 wmep = &iwi_wme_ofdm_params[ac]; 1050 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn; 1051 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1052 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1053 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1054 sc->wme[2].acm[ac] = wmep->wmep_acm; 1055 } 1056 } 1057 1058 static int 1059 iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic) 1060 { 1061 const struct wmeParams *wmep; 1062 int ac; 1063 1064 for (ac = 0; ac < WME_NUM_AC; ac++) { 1065 /* set WME values for current operating mode */ 1066 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1067 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn; 1068 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1069 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1070 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1071 sc->wme[0].acm[ac] = wmep->wmep_acm; 1072 } 1073 1074 DPRINTF(("Setting WME parameters\n")); 1075 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme); 1076 } 1077 #undef IWI_USEC 1078 #undef IWI_EXP2 1079 1080 static void 1081 iwi_update_wme_task(void *arg, int npending) 1082 { 1083 struct ieee80211com *ic = arg; 1084 struct iwi_softc *sc = ic->ic_ifp->if_softc; 1085 1086 wlan_serialize_enter(); 1087 (void) iwi_wme_setparams(sc, ic); 1088 wlan_serialize_exit(); 1089 } 1090 1091 static int 1092 iwi_wme_update(struct ieee80211com *ic) 1093 { 1094 struct iwi_softc *sc = ic->ic_ifp->if_softc; 1095 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1096 1097 /* 1098 * We may be called to update the WME parameters in 1099 * the adapter at various places. If we're already 1100 * associated then initiate the request immediately; 1101 * otherwise we assume the params will get sent down 1102 * to the adapter as part of the work iwi_auth_and_assoc 1103 * does. 1104 */ 1105 if (vap->iv_state == IEEE80211_S_RUN) 1106 ieee80211_runtask(ic, &sc->sc_wmetask); 1107 return (0); 1108 } 1109 1110 static int 1111 iwi_wme_setie(struct iwi_softc *sc) 1112 { 1113 struct ieee80211_wme_info wme; 1114 1115 memset(&wme, 0, sizeof wme); 1116 wme.wme_id = IEEE80211_ELEMID_VENDOR; 1117 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 1118 wme.wme_oui[0] = 0x00; 1119 wme.wme_oui[1] = 0x50; 1120 wme.wme_oui[2] = 0xf2; 1121 wme.wme_type = WME_OUI_TYPE; 1122 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 1123 wme.wme_version = WME_VERSION; 1124 wme.wme_info = 0; 1125 1126 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 1127 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme); 1128 } 1129 1130 /* 1131 * Read 16 bits at address 'addr' from the serial EEPROM. 1132 */ 1133 static uint16_t 1134 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1135 { 1136 uint32_t tmp; 1137 uint16_t val; 1138 int n; 1139 1140 /* clock C once before the first command */ 1141 IWI_EEPROM_CTL(sc, 0); 1142 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1143 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1144 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1145 1146 /* write start bit (1) */ 1147 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1148 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1149 1150 /* write READ opcode (10) */ 1151 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1152 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1153 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1154 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1155 1156 /* write address A7-A0 */ 1157 for (n = 7; n >= 0; n--) { 1158 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1159 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1160 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1161 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1162 } 1163 1164 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1165 1166 /* read data Q15-Q0 */ 1167 val = 0; 1168 for (n = 15; n >= 0; n--) { 1169 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1170 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1171 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1172 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1173 } 1174 1175 IWI_EEPROM_CTL(sc, 0); 1176 1177 /* clear Chip Select and clock C */ 1178 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1179 IWI_EEPROM_CTL(sc, 0); 1180 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1181 1182 return val; 1183 } 1184 1185 static void 1186 iwi_setcurchan(struct iwi_softc *sc, int chan) 1187 { 1188 struct ifnet *ifp = sc->sc_ifp; 1189 struct ieee80211com *ic = ifp->if_l2com; 1190 1191 sc->curchan = chan; 1192 ieee80211_radiotap_chan_change(ic); 1193 } 1194 1195 static void 1196 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1197 struct iwi_frame *frame) 1198 { 1199 struct ifnet *ifp = sc->sc_ifp; 1200 struct ieee80211com *ic = ifp->if_l2com; 1201 struct mbuf *mnew, *m; 1202 struct ieee80211_node *ni; 1203 int type, error, framelen; 1204 int8_t rssi, nf; 1205 1206 framelen = le16toh(frame->len); 1207 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) { 1208 /* 1209 * XXX >MCLBYTES is bogus as it means the h/w dma'd 1210 * out of bounds; need to figure out how to limit 1211 * frame size in the firmware 1212 */ 1213 /* XXX stat */ 1214 DPRINTFN(1, 1215 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1216 le16toh(frame->len), frame->chan, frame->rssi, 1217 frame->rssi_dbm)); 1218 return; 1219 } 1220 1221 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1222 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm)); 1223 1224 if (frame->chan != sc->curchan) 1225 iwi_setcurchan(sc, frame->chan); 1226 1227 /* 1228 * Try to allocate a new mbuf for this ring element and load it before 1229 * processing the current mbuf. If the ring element cannot be loaded, 1230 * drop the received packet and reuse the old mbuf. In the unlikely 1231 * case that the old mbuf can't be reloaded either, explicitly panic. 1232 */ 1233 mnew = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); 1234 if (mnew == NULL) { 1235 ifp->if_ierrors++; 1236 return; 1237 } 1238 1239 bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1240 1241 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1242 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, 1243 0); 1244 if (error != 0) { 1245 m_freem(mnew); 1246 1247 /* try to reload the old mbuf */ 1248 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1249 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 1250 &data->physaddr, 0); 1251 if (error != 0) { 1252 /* very unlikely that it will fail... */ 1253 panic("%s: could not load old rx mbuf", 1254 device_get_name(sc->sc_dev)); 1255 } 1256 ifp->if_ierrors++; 1257 return; 1258 } 1259 1260 /* 1261 * New mbuf successfully loaded, update Rx ring and continue 1262 * processing. 1263 */ 1264 m = data->m; 1265 data->m = mnew; 1266 CSR_WRITE_4(sc, data->reg, data->physaddr); 1267 1268 /* finalize mbuf */ 1269 m->m_pkthdr.rcvif = ifp; 1270 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1271 sizeof (struct iwi_frame) + framelen; 1272 1273 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1274 1275 rssi = frame->rssi_dbm; 1276 nf = -95; 1277 if (ieee80211_radiotap_active(ic)) { 1278 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1279 1280 tap->wr_flags = 0; 1281 tap->wr_antsignal = rssi; 1282 tap->wr_antnoise = nf; 1283 tap->wr_rate = iwi_cvtrate(frame->rate); 1284 tap->wr_antenna = frame->antenna; 1285 } 1286 1287 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1288 if (ni != NULL) { 1289 type = ieee80211_input(ni, m, rssi, nf); 1290 ieee80211_free_node(ni); 1291 } else 1292 type = ieee80211_input_all(ic, m, rssi, nf); 1293 1294 if (sc->sc_softled) { 1295 /* 1296 * Blink for any data frame. Otherwise do a 1297 * heartbeat-style blink when idle. The latter 1298 * is mainly for station mode where we depend on 1299 * periodic beacon frames to trigger the poll event. 1300 */ 1301 if (type == IEEE80211_FC0_TYPE_DATA) { 1302 sc->sc_rxrate = frame->rate; 1303 iwi_led_event(sc, IWI_LED_RX); 1304 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle) 1305 iwi_led_event(sc, IWI_LED_POLL); 1306 } 1307 } 1308 1309 /* 1310 * Check for an association response frame to see if QoS 1311 * has been negotiated. We parse just enough to figure 1312 * out if we're supposed to use QoS. The proper solution 1313 * is to pass the frame up so ieee80211_input can do the 1314 * work but that's made hard by how things currently are 1315 * done in the driver. 1316 */ 1317 static void 1318 iwi_checkforqos(struct ieee80211vap *vap, 1319 const struct ieee80211_frame *wh, int len) 1320 { 1321 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 1322 const uint8_t *frm, *efrm, *wme; 1323 struct ieee80211_node *ni; 1324 uint16_t capinfo, status, associd; 1325 1326 /* NB: +8 for capinfo, status, associd, and first ie */ 1327 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) || 1328 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP) 1329 return; 1330 /* 1331 * asresp frame format 1332 * [2] capability information 1333 * [2] status 1334 * [2] association ID 1335 * [tlv] supported rates 1336 * [tlv] extended supported rates 1337 * [tlv] WME 1338 */ 1339 frm = (const uint8_t *)&wh[1]; 1340 efrm = ((const uint8_t *) wh) + len; 1341 1342 capinfo = le16toh(*(const uint16_t *)frm); 1343 frm += 2; 1344 status = le16toh(*(const uint16_t *)frm); 1345 frm += 2; 1346 associd = le16toh(*(const uint16_t *)frm); 1347 frm += 2; 1348 1349 wme = NULL; 1350 while (frm < efrm) { 1351 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return); 1352 switch (*frm) { 1353 case IEEE80211_ELEMID_VENDOR: 1354 if (iswmeoui(frm)) 1355 wme = frm; 1356 break; 1357 } 1358 frm += frm[1] + 2; 1359 } 1360 1361 ni = vap->iv_bss; 1362 ni->ni_capinfo = capinfo; 1363 ni->ni_associd = associd; 1364 if (wme != NULL) 1365 ni->ni_flags |= IEEE80211_NODE_QOS; 1366 else 1367 ni->ni_flags &= ~IEEE80211_NODE_QOS; 1368 #undef SUBTYPE 1369 } 1370 1371 /* 1372 * Task queue callbacks for iwi_notification_intr used to avoid LOR's. 1373 */ 1374 1375 static void 1376 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1377 { 1378 struct ifnet *ifp = sc->sc_ifp; 1379 struct ieee80211com *ic = ifp->if_l2com; 1380 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1381 struct iwi_notif_scan_channel *chan; 1382 struct iwi_notif_scan_complete *scan; 1383 struct iwi_notif_authentication *auth; 1384 struct iwi_notif_association *assoc; 1385 struct iwi_notif_beacon_state *beacon; 1386 1387 switch (notif->type) { 1388 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1389 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1390 1391 DPRINTFN(3, ("Scan of channel %u complete (%u)\n", 1392 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan)); 1393 1394 /* Reset the timer, the scan is still going */ 1395 sc->sc_state_timer = 3; 1396 break; 1397 1398 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1399 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1400 1401 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1402 scan->status)); 1403 1404 IWI_STATE_END(sc, IWI_FW_SCANNING); 1405 1406 if (scan->status == IWI_SCAN_COMPLETED) { 1407 /* NB: don't need to defer, net80211 does it for us */ 1408 ieee80211_scan_next(vap); 1409 } 1410 break; 1411 1412 case IWI_NOTIF_TYPE_AUTHENTICATION: 1413 auth = (struct iwi_notif_authentication *)(notif + 1); 1414 switch (auth->state) { 1415 case IWI_AUTH_SUCCESS: 1416 DPRINTFN(2, ("Authentication succeeeded\n")); 1417 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1); 1418 break; 1419 case IWI_AUTH_FAIL: 1420 /* 1421 * These are delivered as an unsolicited deauth 1422 * (e.g. due to inactivity) or in response to an 1423 * associate request. 1424 */ 1425 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1426 if (vap->iv_state != IEEE80211_S_RUN) { 1427 DPRINTFN(2, ("Authentication failed\n")); 1428 vap->iv_stats.is_rx_auth_fail++; 1429 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1430 } else { 1431 DPRINTFN(2, ("Deauthenticated\n")); 1432 vap->iv_stats.is_rx_deauth++; 1433 } 1434 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1435 break; 1436 case IWI_AUTH_SENT_1: 1437 case IWI_AUTH_RECV_2: 1438 case IWI_AUTH_SEQ1_PASS: 1439 break; 1440 case IWI_AUTH_SEQ1_FAIL: 1441 DPRINTFN(2, ("Initial authentication handshake failed; " 1442 "you probably need shared key\n")); 1443 vap->iv_stats.is_rx_auth_fail++; 1444 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1445 /* XXX retry shared key when in auto */ 1446 break; 1447 default: 1448 device_printf(sc->sc_dev, 1449 "unknown authentication state %u\n", auth->state); 1450 break; 1451 } 1452 break; 1453 1454 case IWI_NOTIF_TYPE_ASSOCIATION: 1455 assoc = (struct iwi_notif_association *)(notif + 1); 1456 switch (assoc->state) { 1457 case IWI_AUTH_SUCCESS: 1458 /* re-association, do nothing */ 1459 break; 1460 case IWI_ASSOC_SUCCESS: 1461 DPRINTFN(2, ("Association succeeded\n")); 1462 sc->flags |= IWI_FLAG_ASSOCIATED; 1463 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1464 iwi_checkforqos(vap, 1465 (const struct ieee80211_frame *)(assoc+1), 1466 le16toh(notif->len) - sizeof(*assoc)); 1467 ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 1468 break; 1469 case IWI_ASSOC_INIT: 1470 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1471 switch (sc->fw_state) { 1472 case IWI_FW_ASSOCIATING: 1473 DPRINTFN(2, ("Association failed\n")); 1474 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1475 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1476 break; 1477 1478 case IWI_FW_DISASSOCIATING: 1479 DPRINTFN(2, ("Dissassociated\n")); 1480 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING); 1481 vap->iv_stats.is_rx_disassoc++; 1482 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1483 break; 1484 } 1485 break; 1486 default: 1487 device_printf(sc->sc_dev, 1488 "unknown association state %u\n", assoc->state); 1489 break; 1490 } 1491 break; 1492 1493 case IWI_NOTIF_TYPE_BEACON: 1494 /* XXX check struct length */ 1495 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1496 1497 DPRINTFN(5, ("Beacon state (%u, %u)\n", 1498 beacon->state, le32toh(beacon->number))); 1499 1500 if (beacon->state == IWI_BEACON_MISS) { 1501 /* 1502 * The firmware notifies us of every beacon miss 1503 * so we need to track the count against the 1504 * configured threshold before notifying the 1505 * 802.11 layer. 1506 * XXX try to roam, drop assoc only on much higher count 1507 */ 1508 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) { 1509 DPRINTF(("Beacon miss: %u >= %u\n", 1510 le32toh(beacon->number), 1511 vap->iv_bmissthreshold)); 1512 vap->iv_stats.is_beacon_miss++; 1513 /* 1514 * It's pointless to notify the 802.11 layer 1515 * as it'll try to send a probe request (which 1516 * we'll discard) and then timeout and drop us 1517 * into scan state. Instead tell the firmware 1518 * to disassociate and then on completion we'll 1519 * kick the state machine to scan. 1520 */ 1521 ieee80211_runtask(ic, &sc->sc_disassoctask); 1522 } 1523 } 1524 break; 1525 1526 case IWI_NOTIF_TYPE_CALIBRATION: 1527 case IWI_NOTIF_TYPE_NOISE: 1528 case IWI_NOTIF_TYPE_LINK_QUALITY: 1529 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1530 break; 1531 1532 default: 1533 DPRINTF(("unknown notification type %u flags 0x%x len %u\n", 1534 notif->type, notif->flags, le16toh(notif->len))); 1535 break; 1536 } 1537 } 1538 1539 static void 1540 iwi_rx_intr(struct iwi_softc *sc) 1541 { 1542 struct iwi_rx_data *data; 1543 struct iwi_hdr *hdr; 1544 uint32_t hw; 1545 1546 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1547 1548 for (; sc->rxq.cur != hw;) { 1549 data = &sc->rxq.data[sc->rxq.cur]; 1550 1551 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1552 BUS_DMASYNC_POSTREAD); 1553 1554 hdr = mtod(data->m, struct iwi_hdr *); 1555 1556 switch (hdr->type) { 1557 case IWI_HDR_TYPE_FRAME: 1558 iwi_frame_intr(sc, data, sc->rxq.cur, 1559 (struct iwi_frame *)(hdr + 1)); 1560 break; 1561 1562 case IWI_HDR_TYPE_NOTIF: 1563 iwi_notification_intr(sc, 1564 (struct iwi_notif *)(hdr + 1)); 1565 break; 1566 1567 default: 1568 device_printf(sc->sc_dev, "unknown hdr type %u\n", 1569 hdr->type); 1570 } 1571 1572 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1573 1574 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; 1575 } 1576 1577 /* tell the firmware what we have processed */ 1578 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; 1579 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1580 } 1581 1582 static void 1583 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1584 { 1585 struct ifnet *ifp = sc->sc_ifp; 1586 struct iwi_tx_data *data; 1587 uint32_t hw; 1588 1589 hw = CSR_READ_4(sc, txq->csr_ridx); 1590 1591 for (; txq->next != hw;) { 1592 data = &txq->data[txq->next]; 1593 1594 bus_dmamap_sync(txq->data_dmat, data->map, 1595 BUS_DMASYNC_POSTWRITE); 1596 bus_dmamap_unload(txq->data_dmat, data->map); 1597 if (data->m->m_flags & M_TXCB) 1598 ieee80211_process_callback(data->ni, data->m, 0/*XXX*/); 1599 m_freem(data->m); 1600 data->m = NULL; 1601 ieee80211_free_node(data->ni); 1602 data->ni = NULL; 1603 1604 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1605 1606 ifp->if_opackets++; 1607 1608 txq->queued--; 1609 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; 1610 } 1611 1612 sc->sc_tx_timer = 0; 1613 ifp->if_flags &= ~IFF_OACTIVE; 1614 1615 if (sc->sc_softled) 1616 iwi_led_event(sc, IWI_LED_TX); 1617 1618 iwi_start_locked(ifp); 1619 } 1620 1621 static void 1622 iwi_fatal_error_intr(struct iwi_softc *sc) 1623 { 1624 struct ifnet *ifp = sc->sc_ifp; 1625 struct ieee80211com *ic = ifp->if_l2com; 1626 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1627 1628 device_printf(sc->sc_dev, "firmware error\n"); 1629 if (vap != NULL) 1630 ieee80211_cancel_scan(vap); 1631 ieee80211_runtask(ic, &sc->sc_restarttask); 1632 1633 sc->flags &= ~IWI_FLAG_BUSY; 1634 sc->sc_busy_timer = 0; 1635 wakeup(sc); 1636 } 1637 1638 static void 1639 iwi_radio_off_intr(struct iwi_softc *sc) 1640 { 1641 struct ifnet *ifp = sc->sc_ifp; 1642 struct ieee80211com *ic = ifp->if_l2com; 1643 1644 ieee80211_runtask(ic, &sc->sc_radiofftask); 1645 } 1646 1647 static void 1648 iwi_intr(void *arg) 1649 { 1650 struct iwi_softc *sc = arg; 1651 uint32_t r; 1652 1653 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { 1654 return; 1655 } 1656 1657 /* acknowledge interrupts */ 1658 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1659 1660 if (r & IWI_INTR_FATAL_ERROR) { 1661 iwi_fatal_error_intr(sc); 1662 return; 1663 } 1664 1665 if (r & IWI_INTR_FW_INITED) { 1666 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1667 wakeup(sc); 1668 } 1669 1670 if (r & IWI_INTR_RADIO_OFF) 1671 iwi_radio_off_intr(sc); 1672 1673 if (r & IWI_INTR_CMD_DONE) { 1674 sc->flags &= ~IWI_FLAG_BUSY; 1675 sc->sc_busy_timer = 0; 1676 wakeup(sc); 1677 } 1678 1679 if (r & IWI_INTR_TX1_DONE) 1680 iwi_tx_intr(sc, &sc->txq[0]); 1681 1682 if (r & IWI_INTR_TX2_DONE) 1683 iwi_tx_intr(sc, &sc->txq[1]); 1684 1685 if (r & IWI_INTR_TX3_DONE) 1686 iwi_tx_intr(sc, &sc->txq[2]); 1687 1688 if (r & IWI_INTR_TX4_DONE) 1689 iwi_tx_intr(sc, &sc->txq[3]); 1690 1691 if (r & IWI_INTR_RX_DONE) 1692 iwi_rx_intr(sc); 1693 1694 if (r & IWI_INTR_PARITY_ERROR) { 1695 /* XXX rate-limit */ 1696 device_printf(sc->sc_dev, "parity error\n"); 1697 } 1698 } 1699 1700 static int 1701 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len) 1702 { 1703 struct iwi_cmd_desc *desc; 1704 1705 if (sc->flags & IWI_FLAG_BUSY) { 1706 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", 1707 __func__, type); 1708 return EAGAIN; 1709 } 1710 1711 sc->flags |= IWI_FLAG_BUSY; 1712 sc->sc_busy_timer = 2; 1713 1714 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1715 1716 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1717 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1718 desc->type = type; 1719 desc->len = len; 1720 memcpy(desc->data, data, len); 1721 1722 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, 1723 BUS_DMASYNC_PREWRITE); 1724 1725 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, 1726 type, len)); 1727 1728 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; 1729 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1730 1731 return zsleep(sc, &wlan_global_serializer, 0, "iwicmd", hz); 1732 } 1733 1734 static void 1735 iwi_write_ibssnode(struct iwi_softc *sc, 1736 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry) 1737 { 1738 struct iwi_ibssnode node; 1739 1740 /* write node information into NIC memory */ 1741 memset(&node, 0, sizeof node); 1742 IEEE80211_ADDR_COPY(node.bssid, addr); 1743 1744 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry)); 1745 1746 CSR_WRITE_REGION_1(sc, 1747 IWI_CSR_NODE_BASE + entry * sizeof node, 1748 (uint8_t *)&node, sizeof node); 1749 } 1750 1751 static int 1752 iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1753 int ac) 1754 { 1755 struct iwi_softc *sc = ifp->if_softc; 1756 struct ieee80211vap *vap = ni->ni_vap; 1757 struct ieee80211com *ic = ni->ni_ic; 1758 struct iwi_node *in = (struct iwi_node *)ni; 1759 const struct ieee80211_frame *wh; 1760 struct ieee80211_key *k; 1761 const struct chanAccParams *cap; 1762 struct iwi_tx_ring *txq = &sc->txq[ac]; 1763 struct iwi_tx_data *data; 1764 struct iwi_tx_desc *desc; 1765 struct mbuf *mnew; 1766 bus_dma_segment_t segs[IWI_MAX_NSEG]; 1767 int error, nsegs, hdrlen, i; 1768 int ismcast, flags, xflags, staid; 1769 1770 wh = mtod(m0, const struct ieee80211_frame *); 1771 /* NB: only data frames use this path */ 1772 hdrlen = ieee80211_hdrsize(wh); 1773 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1774 flags = xflags = 0; 1775 1776 if (!ismcast) 1777 flags |= IWI_DATA_FLAG_NEED_ACK; 1778 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE) 1779 flags |= IWI_DATA_FLAG_SHPREAMBLE; 1780 if (IEEE80211_QOS_HAS_SEQ(wh)) { 1781 xflags |= IWI_DATA_XFLAG_QOS; 1782 cap = &ic->ic_wme.wme_chanParams; 1783 if (!cap->cap_wmeParams[ac].wmep_noackPolicy) 1784 flags &= ~IWI_DATA_FLAG_NEED_ACK; 1785 } 1786 1787 /* 1788 * This is only used in IBSS mode where the firmware expect an index 1789 * in a h/w table instead of a destination address. 1790 */ 1791 if (vap->iv_opmode == IEEE80211_M_IBSS) { 1792 if (!ismcast) { 1793 if (in->in_station == -1) { 1794 in->in_station = devfs_clone_bitmap_get(&sc->sc_unr, 1795 IWI_MAX_IBSSNODE-1); 1796 if (in->in_station == -1) { 1797 /* h/w table is full */ 1798 m_freem(m0); 1799 ieee80211_free_node(ni); 1800 ifp->if_oerrors++; 1801 return 0; 1802 } 1803 iwi_write_ibssnode(sc, 1804 ni->ni_macaddr, in->in_station); 1805 } 1806 staid = in->in_station; 1807 } else { 1808 /* 1809 * Multicast addresses have no associated node 1810 * so there will be no station entry. We reserve 1811 * entry 0 for one mcast address and use that. 1812 * If there are many being used this will be 1813 * expensive and we'll need to do a better job 1814 * but for now this handles the broadcast case. 1815 */ 1816 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) { 1817 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1); 1818 iwi_write_ibssnode(sc, sc->sc_mcast, 0); 1819 } 1820 staid = 0; 1821 } 1822 } else 1823 staid = 0; 1824 1825 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1826 k = ieee80211_crypto_encap(ni, m0); 1827 if (k == NULL) { 1828 m_freem(m0); 1829 return ENOBUFS; 1830 } 1831 1832 /* packet header may have moved, reset our local pointer */ 1833 wh = mtod(m0, struct ieee80211_frame *); 1834 } 1835 1836 if (ieee80211_radiotap_active_vap(vap)) { 1837 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1838 1839 tap->wt_flags = 0; 1840 1841 ieee80211_radiotap_tx(vap, m0); 1842 } 1843 1844 data = &txq->data[txq->cur]; 1845 desc = &txq->desc[txq->cur]; 1846 1847 /* save and trim IEEE802.11 header */ 1848 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh); 1849 m_adj(m0, hdrlen); 1850 1851 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map, 1852 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); 1853 if (error != 0 && error != EFBIG) { 1854 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1855 error); 1856 m_freem(m0); 1857 return error; 1858 } 1859 if (error != 0) { 1860 mnew = m_defrag(m0, MB_DONTWAIT); 1861 if (mnew == NULL) { 1862 device_printf(sc->sc_dev, 1863 "could not defragment mbuf\n"); 1864 m_freem(m0); 1865 return ENOBUFS; 1866 } 1867 m0 = mnew; 1868 1869 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, 1870 data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); 1871 if (error != 0) { 1872 device_printf(sc->sc_dev, 1873 "could not map mbuf (error %d)\n", error); 1874 m_freem(m0); 1875 return error; 1876 } 1877 } 1878 1879 data->m = m0; 1880 data->ni = ni; 1881 1882 desc->hdr.type = IWI_HDR_TYPE_DATA; 1883 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1884 desc->station = staid; 1885 desc->cmd = IWI_DATA_CMD_TX; 1886 desc->len = htole16(m0->m_pkthdr.len); 1887 desc->flags = flags; 1888 desc->xflags = xflags; 1889 1890 #if 0 1891 if (vap->iv_flags & IEEE80211_F_PRIVACY) 1892 desc->wep_txkey = vap->iv_def_txkey; 1893 else 1894 #endif 1895 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1896 1897 desc->nseg = htole32(nsegs); 1898 for (i = 0; i < nsegs; i++) { 1899 desc->seg_addr[i] = htole32(segs[i].ds_addr); 1900 desc->seg_len[i] = htole16(segs[i].ds_len); 1901 } 1902 1903 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1904 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1905 1906 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1907 ac, txq->cur, le16toh(desc->len), nsegs)); 1908 1909 txq->queued++; 1910 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; 1911 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1912 1913 return 0; 1914 } 1915 1916 static int 1917 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1918 const struct ieee80211_bpf_params *params) 1919 { 1920 /* no support; just discard */ 1921 m_freem(m); 1922 ieee80211_free_node(ni); 1923 return 0; 1924 } 1925 1926 static void 1927 iwi_start_locked(struct ifnet *ifp) 1928 { 1929 struct iwi_softc *sc = ifp->if_softc; 1930 struct mbuf *m; 1931 struct ieee80211_node *ni; 1932 int ac; 1933 1934 if ((ifp->if_flags & IFF_RUNNING) == 0) 1935 return; 1936 1937 for (;;) { 1938 IF_DEQUEUE(&ifp->if_snd, m); 1939 if (m == NULL) 1940 break; 1941 ac = M_WME_GETAC(m); 1942 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) { 1943 /* there is no place left in this ring; tail drop */ 1944 /* XXX tail drop */ 1945 IF_PREPEND(&ifp->if_snd, m); 1946 ifp->if_flags |= IFF_OACTIVE; 1947 break; 1948 } 1949 1950 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1951 if (iwi_tx_start(ifp, m, ni, ac) != 0) { 1952 ieee80211_free_node(ni); 1953 ifp->if_oerrors++; 1954 break; 1955 } 1956 1957 sc->sc_tx_timer = 5; 1958 } 1959 } 1960 1961 static void 1962 iwi_start(struct ifnet *ifp) 1963 { 1964 iwi_start_locked(ifp); 1965 } 1966 1967 static void 1968 iwi_watchdog(void *arg) 1969 { 1970 struct iwi_softc *sc = arg; 1971 struct ifnet *ifp = sc->sc_ifp; 1972 struct ieee80211com *ic = ifp->if_l2com; 1973 1974 wlan_serialize_enter(); 1975 if (sc->sc_tx_timer > 0) { 1976 if (--sc->sc_tx_timer == 0) { 1977 if_printf(ifp, "device timeout\n"); 1978 ifp->if_oerrors++; 1979 wlan_serialize_exit(); 1980 ieee80211_runtask(ic, &sc->sc_restarttask); 1981 wlan_serialize_enter(); 1982 } 1983 } 1984 if (sc->sc_state_timer > 0) { 1985 if (--sc->sc_state_timer == 0) { 1986 if_printf(ifp, "firmware stuck in state %d, resetting\n", 1987 sc->fw_state); 1988 if (sc->fw_state == IWI_FW_SCANNING) { 1989 struct ieee80211com *ic = ifp->if_l2com; 1990 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps)); 1991 } 1992 wlan_serialize_exit(); 1993 ieee80211_runtask(ic, &sc->sc_restarttask); 1994 wlan_serialize_enter(); 1995 sc->sc_state_timer = 3; 1996 } 1997 } 1998 if (sc->sc_busy_timer > 0) { 1999 if (--sc->sc_busy_timer == 0) { 2000 if_printf(ifp, "firmware command timeout, resetting\n"); 2001 wlan_serialize_exit(); 2002 ieee80211_runtask(ic, &sc->sc_restarttask); 2003 wlan_serialize_enter(); 2004 } 2005 } 2006 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc); 2007 wlan_serialize_exit(); 2008 } 2009 2010 static int 2011 iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 2012 { 2013 struct iwi_softc *sc = ifp->if_softc; 2014 struct ieee80211com *ic = ifp->if_l2com; 2015 struct ifreq *ifr = (struct ifreq *) data; 2016 int error = 0, startall = 0; 2017 2018 switch (cmd) { 2019 case SIOCSIFFLAGS: 2020 if (ifp->if_flags & IFF_UP) { 2021 if (!(ifp->if_flags & IFF_RUNNING)) { 2022 iwi_init_locked(sc); 2023 startall = 1; 2024 } 2025 } else { 2026 if (ifp->if_flags & IFF_RUNNING) 2027 iwi_stop_locked(sc); 2028 } 2029 if (startall) 2030 ieee80211_start_all(ic); 2031 break; 2032 case SIOCGIFMEDIA: 2033 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 2034 break; 2035 case SIOCGIFADDR: 2036 error = ether_ioctl(ifp, cmd, data); 2037 break; 2038 default: 2039 error = EINVAL; 2040 break; 2041 } 2042 return error; 2043 } 2044 2045 static void 2046 iwi_stop_master(struct iwi_softc *sc) 2047 { 2048 uint32_t tmp; 2049 int ntries; 2050 2051 /* disable interrupts */ 2052 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 2053 2054 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 2055 for (ntries = 0; ntries < 5; ntries++) { 2056 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2057 break; 2058 DELAY(10); 2059 } 2060 if (ntries == 5) 2061 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2062 2063 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2064 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); 2065 2066 sc->flags &= ~IWI_FLAG_FW_INITED; 2067 } 2068 2069 static int 2070 iwi_reset(struct iwi_softc *sc) 2071 { 2072 uint32_t tmp; 2073 int i, ntries; 2074 2075 iwi_stop_master(sc); 2076 2077 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2078 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2079 2080 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2081 2082 /* wait for clock stabilization */ 2083 for (ntries = 0; ntries < 1000; ntries++) { 2084 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2085 break; 2086 DELAY(200); 2087 } 2088 if (ntries == 1000) { 2089 device_printf(sc->sc_dev, 2090 "timeout waiting for clock stabilization\n"); 2091 return EIO; 2092 } 2093 2094 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2095 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); 2096 2097 DELAY(10); 2098 2099 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2100 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2101 2102 /* clear NIC memory */ 2103 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2104 for (i = 0; i < 0xc000; i++) 2105 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2106 2107 return 0; 2108 } 2109 2110 static const struct iwi_firmware_ohdr * 2111 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw) 2112 { 2113 const struct firmware *fp = fw->fp; 2114 const struct iwi_firmware_ohdr *hdr; 2115 2116 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) { 2117 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name); 2118 return NULL; 2119 } 2120 hdr = (const struct iwi_firmware_ohdr *)fp->data; 2121 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2122 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2123 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n", 2124 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2125 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR, 2126 IWI_FW_REQ_MINOR); 2127 return NULL; 2128 } 2129 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr); 2130 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr); 2131 fw->name = fp->name; 2132 return hdr; 2133 } 2134 2135 static const struct iwi_firmware_ohdr * 2136 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw) 2137 { 2138 const struct iwi_firmware_ohdr *hdr; 2139 2140 hdr = iwi_setup_ofw(sc, fw); 2141 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) { 2142 device_printf(sc->sc_dev, "%s is not a ucode image\n", 2143 fw->name); 2144 hdr = NULL; 2145 } 2146 return hdr; 2147 } 2148 2149 static void 2150 iwi_getfw(struct iwi_fw *fw, const char *fwname, 2151 struct iwi_fw *uc, const char *ucname) 2152 { 2153 wlan_assert_serialized(); 2154 wlan_serialize_exit(); 2155 if (fw->fp == NULL) 2156 fw->fp = firmware_get(fwname); 2157 2158 /* NB: pre-3.0 ucode is packaged separately */ 2159 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300) 2160 uc->fp = firmware_get(ucname); 2161 wlan_serialize_enter(); 2162 } 2163 2164 /* 2165 * Get the required firmware images if not already loaded. 2166 * Note that we hold firmware images so long as the device 2167 * is marked up in case we need to reload them on device init. 2168 * This is necessary because we re-init the device sometimes 2169 * from a context where we cannot read from the filesystem 2170 * (e.g. from the taskqueue thread when rfkill is re-enabled). 2171 * XXX return 0 on success, 1 on error. 2172 * 2173 * NB: the order of get'ing and put'ing images here is 2174 * intentional to support handling firmware images bundled 2175 * by operating mode and/or all together in one file with 2176 * the boot firmware as "master". 2177 */ 2178 static int 2179 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode) 2180 { 2181 const struct iwi_firmware_hdr *hdr; 2182 const struct firmware *fp; 2183 2184 wlan_serialize_enter(); 2185 2186 /* invalidate cached firmware on mode change */ 2187 if (sc->fw_mode != opmode) 2188 iwi_put_firmware(sc); 2189 2190 switch (opmode) { 2191 case IEEE80211_M_STA: 2192 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss"); 2193 break; 2194 case IEEE80211_M_IBSS: 2195 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss"); 2196 break; 2197 case IEEE80211_M_MONITOR: 2198 iwi_getfw(&sc->fw_fw, "iwi_monitor", 2199 &sc->fw_uc, "iwi_ucode_monitor"); 2200 break; 2201 default: 2202 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); 2203 wlan_serialize_exit(); 2204 return EINVAL; 2205 } 2206 fp = sc->fw_fw.fp; 2207 if (fp == NULL) { 2208 device_printf(sc->sc_dev, "could not load firmware\n"); 2209 goto bad; 2210 } 2211 if (fp->version < 300) { 2212 /* 2213 * Firmware prior to 3.0 was packaged as separate 2214 * boot, firmware, and ucode images. Verify the 2215 * ucode image was read in, retrieve the boot image 2216 * if needed, and check version stamps for consistency. 2217 * The version stamps in the data are also checked 2218 * above; this is a bit paranoid but is a cheap 2219 * safeguard against mis-packaging. 2220 */ 2221 if (sc->fw_uc.fp == NULL) { 2222 device_printf(sc->sc_dev, "could not load ucode\n"); 2223 goto bad; 2224 } 2225 if (sc->fw_boot.fp == NULL) { 2226 sc->fw_boot.fp = firmware_get("iwi_boot"); 2227 if (sc->fw_boot.fp == NULL) { 2228 device_printf(sc->sc_dev, 2229 "could not load boot firmware\n"); 2230 goto bad; 2231 } 2232 } 2233 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version || 2234 sc->fw_boot.fp->version != sc->fw_uc.fp->version) { 2235 device_printf(sc->sc_dev, 2236 "firmware version mismatch: " 2237 "'%s' is %d, '%s' is %d, '%s' is %d\n", 2238 sc->fw_boot.fp->name, sc->fw_boot.fp->version, 2239 sc->fw_uc.fp->name, sc->fw_uc.fp->version, 2240 sc->fw_fw.fp->name, sc->fw_fw.fp->version 2241 ); 2242 goto bad; 2243 } 2244 /* 2245 * Check and setup each image. 2246 */ 2247 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL || 2248 iwi_setup_ofw(sc, &sc->fw_boot) == NULL || 2249 iwi_setup_ofw(sc, &sc->fw_fw) == NULL) 2250 goto bad; 2251 } else { 2252 /* 2253 * Check and setup combined image. 2254 */ 2255 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) { 2256 device_printf(sc->sc_dev, "image '%s' too small\n", 2257 fp->name); 2258 goto bad; 2259 } 2260 hdr = (const struct iwi_firmware_hdr *)fp->data; 2261 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize) 2262 + le32toh(hdr->fsize)) { 2263 device_printf(sc->sc_dev, "image '%s' too small (2)\n", 2264 fp->name); 2265 goto bad; 2266 } 2267 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr); 2268 sc->fw_boot.size = le32toh(hdr->bsize); 2269 sc->fw_boot.name = fp->name; 2270 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size; 2271 sc->fw_uc.size = le32toh(hdr->usize); 2272 sc->fw_uc.name = fp->name; 2273 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size; 2274 sc->fw_fw.size = le32toh(hdr->fsize); 2275 sc->fw_fw.name = fp->name; 2276 } 2277 #if 0 2278 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n", 2279 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size); 2280 #endif 2281 2282 sc->fw_mode = opmode; 2283 wlan_serialize_exit(); 2284 return 0; 2285 bad: 2286 iwi_put_firmware(sc); 2287 wlan_serialize_exit(); 2288 return 1; 2289 } 2290 2291 static void 2292 iwi_put_fw(struct iwi_fw *fw) 2293 { 2294 wlan_assert_serialized(); 2295 wlan_serialize_exit(); 2296 if (fw->fp != NULL) { 2297 firmware_put(fw->fp, FIRMWARE_UNLOAD); 2298 fw->fp = NULL; 2299 } 2300 wlan_serialize_enter(); 2301 fw->data = NULL; 2302 fw->size = 0; 2303 fw->name = NULL; 2304 } 2305 2306 /* 2307 * Release any cached firmware images. 2308 */ 2309 static void 2310 iwi_put_firmware(struct iwi_softc *sc) 2311 { 2312 iwi_put_fw(&sc->fw_uc); 2313 iwi_put_fw(&sc->fw_fw); 2314 iwi_put_fw(&sc->fw_boot); 2315 } 2316 2317 static int 2318 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw) 2319 { 2320 uint32_t tmp; 2321 const uint16_t *w; 2322 const char *uc = fw->data; 2323 size_t size = fw->size; 2324 int i, ntries, error; 2325 2326 error = 0; 2327 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2328 IWI_RST_STOP_MASTER); 2329 for (ntries = 0; ntries < 5; ntries++) { 2330 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2331 break; 2332 DELAY(10); 2333 } 2334 if (ntries == 5) { 2335 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2336 error = EIO; 2337 goto fail; 2338 } 2339 2340 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2341 DELAY(5000); 2342 2343 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2344 tmp &= ~IWI_RST_PRINCETON_RESET; 2345 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2346 2347 DELAY(5000); 2348 MEM_WRITE_4(sc, 0x3000e0, 0); 2349 DELAY(1000); 2350 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1); 2351 DELAY(1000); 2352 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0); 2353 DELAY(1000); 2354 MEM_WRITE_1(sc, 0x200000, 0x00); 2355 MEM_WRITE_1(sc, 0x200000, 0x40); 2356 DELAY(1000); 2357 2358 /* write microcode into adapter memory */ 2359 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2) 2360 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2361 2362 MEM_WRITE_1(sc, 0x200000, 0x00); 2363 MEM_WRITE_1(sc, 0x200000, 0x80); 2364 2365 /* wait until we get an answer */ 2366 for (ntries = 0; ntries < 100; ntries++) { 2367 if (MEM_READ_1(sc, 0x200000) & 1) 2368 break; 2369 DELAY(100); 2370 } 2371 if (ntries == 100) { 2372 device_printf(sc->sc_dev, 2373 "timeout waiting for ucode to initialize\n"); 2374 error = EIO; 2375 goto fail; 2376 } 2377 2378 /* read the answer or the firmware will not initialize properly */ 2379 for (i = 0; i < 7; i++) 2380 MEM_READ_4(sc, 0x200004); 2381 2382 MEM_WRITE_1(sc, 0x200000, 0x00); 2383 2384 fail: 2385 return error; 2386 } 2387 2388 /* macro to handle unaligned little endian data in firmware image */ 2389 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2390 2391 static int 2392 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw) 2393 { 2394 u_char *p, *end; 2395 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; 2396 int ntries, error; 2397 2398 /* copy firmware image to DMA memory */ 2399 memcpy(sc->fw_virtaddr, fw->data, fw->size); 2400 2401 /* make sure the adapter will get up-to-date values */ 2402 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE); 2403 2404 /* tell the adapter where the command blocks are stored */ 2405 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2406 2407 /* 2408 * Store command blocks into adapter's internal memory using register 2409 * indirections. The adapter will read the firmware image through DMA 2410 * using information stored in command blocks. 2411 */ 2412 src = sc->fw_physaddr; 2413 p = sc->fw_virtaddr; 2414 end = p + fw->size; 2415 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2416 2417 while (p < end) { 2418 dst = GETLE32(p); p += 4; src += 4; 2419 len = GETLE32(p); p += 4; src += 4; 2420 p += len; 2421 2422 while (len > 0) { 2423 mlen = min(len, IWI_CB_MAXDATALEN); 2424 2425 ctl = IWI_CB_DEFAULT_CTL | mlen; 2426 sum = ctl ^ src ^ dst; 2427 2428 /* write a command block */ 2429 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2430 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); 2431 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); 2432 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2433 2434 src += mlen; 2435 dst += mlen; 2436 len -= mlen; 2437 } 2438 } 2439 2440 /* write a fictive final command block (sentinel) */ 2441 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2442 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2443 2444 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2445 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); 2446 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2447 2448 /* tell the adapter to start processing command blocks */ 2449 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2450 2451 /* wait until the adapter reaches the sentinel */ 2452 for (ntries = 0; ntries < 400; ntries++) { 2453 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2454 break; 2455 DELAY(100); 2456 } 2457 /* sync dma, just in case */ 2458 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE); 2459 if (ntries == 400) { 2460 device_printf(sc->sc_dev, 2461 "timeout processing command blocks for %s firmware\n", 2462 fw->name); 2463 return EIO; 2464 } 2465 2466 /* we're done with command blocks processing */ 2467 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2468 2469 /* allow interrupts so we know when the firmware is ready */ 2470 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2471 2472 /* tell the adapter to initialize the firmware */ 2473 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2474 2475 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2476 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); 2477 2478 /* wait at most one second for firmware initialization to complete */ 2479 error = zsleep(sc, &wlan_global_serializer, 0, "iwiinit", hz); 2480 if (error != 0) { 2481 device_printf(sc->sc_dev, "timeout waiting for firmware " 2482 "initialization to complete\n"); 2483 } 2484 2485 return error; 2486 } 2487 2488 static int 2489 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap) 2490 { 2491 uint32_t data; 2492 2493 if (vap->iv_flags & IEEE80211_F_PMGTON) { 2494 /* XXX set more fine-grained operation */ 2495 data = htole32(IWI_POWER_MODE_MAX); 2496 } else 2497 data = htole32(IWI_POWER_MODE_CAM); 2498 2499 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2500 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data); 2501 } 2502 2503 static int 2504 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap) 2505 { 2506 struct iwi_wep_key wepkey; 2507 struct ieee80211_key *wk; 2508 int error, i; 2509 2510 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2511 wk = &vap->iv_nw_keys[i]; 2512 2513 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2514 wepkey.idx = i; 2515 wepkey.len = wk->wk_keylen; 2516 memset(wepkey.key, 0, sizeof wepkey.key); 2517 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2518 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2519 wepkey.len)); 2520 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2521 sizeof wepkey); 2522 if (error != 0) 2523 return error; 2524 } 2525 return 0; 2526 } 2527 2528 static int 2529 iwi_config(struct iwi_softc *sc) 2530 { 2531 struct ifnet *ifp = sc->sc_ifp; 2532 struct ieee80211com *ic = ifp->if_l2com; 2533 struct iwi_configuration config; 2534 struct iwi_rateset rs; 2535 struct iwi_txpower power; 2536 uint32_t data; 2537 int error, i; 2538 const uint8_t *eaddr = IF_LLADDR(ifp); 2539 2540 DPRINTF(("Setting MAC address to %6D\n", eaddr, ":")); 2541 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp), 2542 IEEE80211_ADDR_LEN); 2543 if (error != 0) 2544 return error; 2545 2546 memset(&config, 0, sizeof config); 2547 config.bluetooth_coexistence = sc->bluetooth; 2548 config.silence_threshold = 0x1e; 2549 config.antenna = sc->antenna; 2550 config.multicast_enabled = 1; 2551 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2552 config.disable_unicast_decryption = 1; 2553 config.disable_multicast_decryption = 1; 2554 DPRINTF(("Configuring adapter\n")); 2555 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2556 if (error != 0) 2557 return error; 2558 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2559 power.mode = IWI_MODE_11B; 2560 power.nchan = 11; 2561 for (i = 0; i < 11; i++) { 2562 power.chan[i].chan = i + 1; 2563 power.chan[i].power = IWI_TXPOWER_MAX; 2564 } 2565 DPRINTF(("Setting .11b channels tx power\n")); 2566 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2567 if (error != 0) 2568 return error; 2569 2570 power.mode = IWI_MODE_11G; 2571 DPRINTF(("Setting .11g channels tx power\n")); 2572 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2573 if (error != 0) 2574 return error; 2575 } 2576 2577 memset(&rs, 0, sizeof rs); 2578 rs.mode = IWI_MODE_11G; 2579 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2580 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2581 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2582 rs.nrates); 2583 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2584 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2585 if (error != 0) 2586 return error; 2587 2588 memset(&rs, 0, sizeof rs); 2589 rs.mode = IWI_MODE_11A; 2590 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2591 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2592 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2593 rs.nrates); 2594 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2595 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2596 if (error != 0) 2597 return error; 2598 2599 data = htole32(karc4random()); 2600 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2601 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data); 2602 if (error != 0) 2603 return error; 2604 2605 /* enable adapter */ 2606 DPRINTF(("Enabling adapter\n")); 2607 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0); 2608 } 2609 2610 static __inline void 2611 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type) 2612 { 2613 uint8_t *st = &scan->scan_type[ix / 2]; 2614 if (ix % 2) 2615 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0); 2616 else 2617 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4); 2618 } 2619 2620 static int 2621 scan_type(const struct ieee80211_scan_state *ss, 2622 const struct ieee80211_channel *chan) 2623 { 2624 /* We can only set one essid for a directed scan */ 2625 if (ss->ss_nssid != 0) 2626 return IWI_SCAN_TYPE_BDIRECTED; 2627 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) && 2628 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) 2629 return IWI_SCAN_TYPE_BROADCAST; 2630 return IWI_SCAN_TYPE_PASSIVE; 2631 } 2632 2633 static __inline int 2634 scan_band(const struct ieee80211_channel *c) 2635 { 2636 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ; 2637 } 2638 2639 /* 2640 * Start a scan on the current channel or all channels. 2641 */ 2642 static int 2643 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan) 2644 { 2645 struct ieee80211com *ic; 2646 struct ieee80211_channel *chan; 2647 struct ieee80211_scan_state *ss; 2648 struct iwi_scan_ext scan; 2649 int error = 0; 2650 2651 if (sc->fw_state == IWI_FW_SCANNING) { 2652 /* 2653 * This should not happen as we only trigger scan_next after 2654 * completion 2655 */ 2656 DPRINTF(("%s: called too early - still scanning\n", __func__)); 2657 return (EBUSY); 2658 } 2659 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING); 2660 2661 ic = sc->sc_ifp->if_l2com; 2662 ss = ic->ic_scan; 2663 2664 memset(&scan, 0, sizeof scan); 2665 scan.full_scan_index = htole32(++sc->sc_scangen); 2666 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell); 2667 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 2668 /* 2669 * Use very short dwell times for when we send probe request 2670 * frames. Without this bg scans hang. Ideally this should 2671 * be handled with early-termination as done by net80211 but 2672 * that's not feasible (aborting a scan is problematic). 2673 */ 2674 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30); 2675 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30); 2676 } else { 2677 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell); 2678 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell); 2679 } 2680 2681 /* We can only set one essid for a directed scan */ 2682 if (ss->ss_nssid != 0) { 2683 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid, 2684 ss->ss_ssid[0].len); 2685 if (error) 2686 return (error); 2687 } 2688 2689 if (allchan) { 2690 int i, next, band, b, bstart; 2691 /* 2692 * Convert scan list to run-length encoded channel list 2693 * the firmware requires (preserving the order setup by 2694 * net80211). The first entry in each run specifies the 2695 * band and the count of items in the run. 2696 */ 2697 next = 0; /* next open slot */ 2698 bstart = 0; /* NB: not needed, silence compiler */ 2699 band = -1; /* NB: impossible value */ 2700 KASSERT(ss->ss_last > 0, ("no channels")); 2701 for (i = 0; i < ss->ss_last; i++) { 2702 chan = ss->ss_chans[i]; 2703 b = scan_band(chan); 2704 if (b != band) { 2705 if (band != -1) 2706 scan.channels[bstart] = 2707 (next - bstart) | band; 2708 /* NB: this allocates a slot for the run-len */ 2709 band = b, bstart = next++; 2710 } 2711 if (next >= IWI_SCAN_CHANNELS) { 2712 DPRINTF(("truncating scan list\n")); 2713 break; 2714 } 2715 scan.channels[next] = ieee80211_chan2ieee(ic, chan); 2716 set_scan_type(&scan, next, scan_type(ss, chan)); 2717 next++; 2718 } 2719 scan.channels[bstart] = (next - bstart) | band; 2720 } else { 2721 /* Scan the current channel only */ 2722 chan = ic->ic_curchan; 2723 scan.channels[0] = 1 | scan_band(chan); 2724 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2725 set_scan_type(&scan, 1, scan_type(ss, chan)); 2726 } 2727 #ifdef IWI_DEBUG 2728 if (iwi_debug > 0) { 2729 static const char *scantype[8] = 2730 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" }; 2731 int i; 2732 kprintf("Scan request: index %u dwell %d/%d/%d\n" 2733 , le32toh(scan.full_scan_index) 2734 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE]) 2735 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST]) 2736 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED]) 2737 ); 2738 i = 0; 2739 do { 2740 int run = scan.channels[i]; 2741 if (run == 0) 2742 break; 2743 kprintf("Scan %d %s channels:", run & 0x3f, 2744 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz"); 2745 for (run &= 0x3f, i++; run > 0; run--, i++) { 2746 uint8_t type = scan.scan_type[i/2]; 2747 kprintf(" %u/%s", scan.channels[i], 2748 scantype[(i & 1 ? type : type>>4) & 7]); 2749 } 2750 kprintf("\n"); 2751 } while (i < IWI_SCAN_CHANNELS); 2752 } 2753 #endif 2754 2755 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan)); 2756 } 2757 2758 static int 2759 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm) 2760 { 2761 struct iwi_sensitivity sens; 2762 2763 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm)); 2764 2765 memset(&sens, 0, sizeof sens); 2766 sens.rssi = htole16(rssi_dbm); 2767 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens); 2768 } 2769 2770 static int 2771 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap) 2772 { 2773 struct ieee80211com *ic = vap->iv_ic; 2774 struct ifnet *ifp = vap->iv_ifp; 2775 struct ieee80211_node *ni = vap->iv_bss; 2776 struct iwi_configuration config; 2777 struct iwi_associate *assoc = &sc->assoc; 2778 struct iwi_rateset rs; 2779 uint16_t capinfo; 2780 uint32_t data; 2781 int error, mode; 2782 2783 if (sc->flags & IWI_FLAG_ASSOCIATED) { 2784 DPRINTF(("Already associated\n")); 2785 return (-1); 2786 } 2787 2788 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING); 2789 error = 0; 2790 mode = 0; 2791 2792 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) 2793 mode = IWI_MODE_11A; 2794 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan)) 2795 mode = IWI_MODE_11G; 2796 if (IEEE80211_IS_CHAN_B(ic->ic_curchan)) 2797 mode = IWI_MODE_11B; 2798 2799 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2800 memset(&config, 0, sizeof config); 2801 config.bluetooth_coexistence = sc->bluetooth; 2802 config.antenna = sc->antenna; 2803 config.multicast_enabled = 1; 2804 if (mode == IWI_MODE_11G) 2805 config.use_protection = 1; 2806 config.answer_pbreq = 2807 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2808 config.disable_unicast_decryption = 1; 2809 config.disable_multicast_decryption = 1; 2810 DPRINTF(("Configuring adapter\n")); 2811 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2812 if (error != 0) 2813 goto done; 2814 } 2815 2816 #ifdef IWI_DEBUG 2817 if (iwi_debug > 0) { 2818 kprintf("Setting ESSID to "); 2819 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2820 kprintf("\n"); 2821 } 2822 #endif 2823 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); 2824 if (error != 0) 2825 goto done; 2826 2827 error = iwi_setpowermode(sc, vap); 2828 if (error != 0) 2829 goto done; 2830 2831 data = htole32(vap->iv_rtsthreshold); 2832 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2833 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2834 if (error != 0) 2835 goto done; 2836 2837 data = htole32(vap->iv_fragthreshold); 2838 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2839 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2840 if (error != 0) 2841 goto done; 2842 2843 /* the rate set has already been "negotiated" */ 2844 memset(&rs, 0, sizeof rs); 2845 rs.mode = mode; 2846 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2847 rs.nrates = ni->ni_rates.rs_nrates; 2848 if (rs.nrates > IWI_RATESET_SIZE) { 2849 DPRINTF(("Truncating negotiated rate set from %u\n", 2850 rs.nrates)); 2851 rs.nrates = IWI_RATESET_SIZE; 2852 } 2853 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2854 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2855 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2856 if (error != 0) 2857 goto done; 2858 2859 memset(assoc, 0, sizeof *assoc); 2860 2861 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) { 2862 /* NB: don't treat WME setup as failure */ 2863 if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0) 2864 assoc->policy |= htole16(IWI_POLICY_WME); 2865 /* XXX complain on failure? */ 2866 } 2867 2868 if (vap->iv_appie_wpa != NULL) { 2869 struct ieee80211_appie *ie = vap->iv_appie_wpa; 2870 2871 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len)); 2872 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len); 2873 if (error != 0) 2874 goto done; 2875 } 2876 2877 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni)); 2878 if (error != 0) 2879 goto done; 2880 2881 assoc->mode = mode; 2882 assoc->chan = ic->ic_curchan->ic_ieee; 2883 /* 2884 * NB: do not arrange for shared key auth w/o privacy 2885 * (i.e. a wep key); it causes a firmware error. 2886 */ 2887 if ((vap->iv_flags & IEEE80211_F_PRIVACY) && 2888 ni->ni_authmode == IEEE80211_AUTH_SHARED) { 2889 assoc->auth = IWI_AUTH_SHARED; 2890 /* 2891 * It's possible to have privacy marked but no default 2892 * key setup. This typically is due to a user app bug 2893 * but if we blindly grab the key the firmware will 2894 * barf so avoid it for now. 2895 */ 2896 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) 2897 assoc->auth |= vap->iv_def_txkey << 4; 2898 2899 error = iwi_setwepkeys(sc, vap); 2900 if (error != 0) 2901 goto done; 2902 } 2903 if (vap->iv_flags & IEEE80211_F_WPA) 2904 assoc->policy |= htole16(IWI_POLICY_WPA); 2905 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2906 assoc->type = IWI_HC_IBSS_START; 2907 else 2908 assoc->type = IWI_HC_ASSOC; 2909 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8); 2910 2911 if (vap->iv_opmode == IEEE80211_M_IBSS) 2912 capinfo = IEEE80211_CAPINFO_IBSS; 2913 else 2914 capinfo = IEEE80211_CAPINFO_ESS; 2915 if (vap->iv_flags & IEEE80211_F_PRIVACY) 2916 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2917 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2918 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 2919 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2920 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) 2921 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2922 assoc->capinfo = htole16(capinfo); 2923 2924 assoc->lintval = htole16(ic->ic_lintval); 2925 assoc->intval = htole16(ni->ni_intval); 2926 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid); 2927 if (vap->iv_opmode == IEEE80211_M_IBSS) 2928 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr); 2929 else 2930 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid); 2931 2932 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x " 2933 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2934 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", 2935 assoc->bssid, ":", assoc->dst, ":", 2936 assoc->chan, le16toh(assoc->policy), assoc->auth, 2937 le16toh(assoc->capinfo), le16toh(assoc->lintval), 2938 le16toh(assoc->intval))); 2939 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 2940 done: 2941 if (error) 2942 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 2943 2944 return (error); 2945 } 2946 2947 static void 2948 iwi_disassoc_task(void *arg, int pending) 2949 { 2950 struct iwi_softc *sc = arg; 2951 2952 wlan_serialize_enter(); 2953 iwi_disassociate(sc, 0); 2954 wlan_serialize_exit(); 2955 } 2956 2957 static int 2958 iwi_disassociate(struct iwi_softc *sc, int quiet) 2959 { 2960 struct iwi_associate *assoc = &sc->assoc; 2961 2962 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) { 2963 DPRINTF(("Not associated\n")); 2964 return (-1); 2965 } 2966 2967 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING); 2968 2969 if (quiet) 2970 assoc->type = IWI_HC_DISASSOC_QUIET; 2971 else 2972 assoc->type = IWI_HC_DISASSOC; 2973 2974 DPRINTF(("Trying to disassociate from %6D channel %u\n", 2975 assoc->bssid, ":", assoc->chan)); 2976 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 2977 } 2978 2979 /* 2980 * release dma resources for the firmware 2981 */ 2982 static void 2983 iwi_release_fw_dma(struct iwi_softc *sc) 2984 { 2985 if (sc->fw_flags & IWI_FW_HAVE_PHY) 2986 bus_dmamap_unload(sc->fw_dmat, sc->fw_map); 2987 if (sc->fw_flags & IWI_FW_HAVE_MAP) 2988 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map); 2989 if (sc->fw_flags & IWI_FW_HAVE_DMAT) 2990 bus_dma_tag_destroy(sc->fw_dmat); 2991 2992 sc->fw_flags = 0; 2993 sc->fw_dma_size = 0; 2994 sc->fw_dmat = NULL; 2995 sc->fw_map = NULL; 2996 sc->fw_physaddr = 0; 2997 sc->fw_virtaddr = NULL; 2998 } 2999 3000 /* 3001 * allocate the dma descriptor for the firmware. 3002 * Return 0 on success, 1 on error. 3003 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING. 3004 */ 3005 static int 3006 iwi_init_fw_dma(struct iwi_softc *sc, int size) 3007 { 3008 if (sc->fw_dma_size >= size) 3009 return 0; 3010 if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 3011 BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size, 3012 0, &sc->fw_dmat) != 0) { 3013 device_printf(sc->sc_dev, 3014 "could not create firmware DMA tag\n"); 3015 goto error; 3016 } 3017 sc->fw_flags |= IWI_FW_HAVE_DMAT; 3018 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0, 3019 &sc->fw_map) != 0) { 3020 device_printf(sc->sc_dev, 3021 "could not allocate firmware DMA memory\n"); 3022 goto error; 3023 } 3024 sc->fw_flags |= IWI_FW_HAVE_MAP; 3025 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr, 3026 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) { 3027 device_printf(sc->sc_dev, "could not load firmware DMA map\n"); 3028 goto error; 3029 } 3030 sc->fw_flags |= IWI_FW_HAVE_PHY; 3031 sc->fw_dma_size = size; 3032 return 0; 3033 3034 error: 3035 iwi_release_fw_dma(sc); 3036 return 1; 3037 } 3038 3039 static void 3040 iwi_init_locked(struct iwi_softc *sc) 3041 { 3042 struct ifnet *ifp = sc->sc_ifp; 3043 struct iwi_rx_data *data; 3044 int i; 3045 3046 if (sc->fw_state == IWI_FW_LOADING) { 3047 device_printf(sc->sc_dev, "%s: already loading\n", __func__); 3048 return; /* XXX: condvar? */ 3049 } 3050 3051 iwi_stop_locked(sc); 3052 3053 IWI_STATE_BEGIN(sc, IWI_FW_LOADING); 3054 3055 if (iwi_reset(sc) != 0) { 3056 device_printf(sc->sc_dev, "could not reset adapter\n"); 3057 goto fail; 3058 } 3059 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) { 3060 device_printf(sc->sc_dev, 3061 "could not load boot firmware %s\n", sc->fw_boot.name); 3062 goto fail; 3063 } 3064 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) { 3065 device_printf(sc->sc_dev, 3066 "could not load microcode %s\n", sc->fw_uc.name); 3067 goto fail; 3068 } 3069 3070 iwi_stop_master(sc); 3071 3072 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr); 3073 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 3074 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 3075 3076 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr); 3077 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 3078 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 3079 3080 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr); 3081 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 3082 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 3083 3084 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr); 3085 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 3086 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 3087 3088 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr); 3089 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 3090 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 3091 3092 for (i = 0; i < sc->rxq.count; i++) { 3093 data = &sc->rxq.data[i]; 3094 CSR_WRITE_4(sc, data->reg, data->physaddr); 3095 } 3096 3097 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1); 3098 3099 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) { 3100 device_printf(sc->sc_dev, 3101 "could not load main firmware %s\n", sc->fw_fw.name); 3102 goto fail; 3103 } 3104 sc->flags |= IWI_FLAG_FW_INITED; 3105 3106 IWI_STATE_END(sc, IWI_FW_LOADING); 3107 3108 if (iwi_config(sc) != 0) { 3109 device_printf(sc->sc_dev, "unable to enable adapter\n"); 3110 goto fail2; 3111 } 3112 3113 callout_reset(&sc->sc_wdtimer_callout, hz, iwi_watchdog, sc); 3114 ifp->if_flags &= ~IFF_OACTIVE; 3115 ifp->if_flags |= IFF_RUNNING; 3116 return; 3117 fail: 3118 IWI_STATE_END(sc, IWI_FW_LOADING); 3119 fail2: 3120 iwi_stop_locked(sc); 3121 } 3122 3123 static void 3124 iwi_init(void *priv) 3125 { 3126 struct iwi_softc *sc = priv; 3127 struct ifnet *ifp = sc->sc_ifp; 3128 struct ieee80211com *ic = ifp->if_l2com; 3129 3130 iwi_init_locked(sc); 3131 3132 if (ifp->if_flags & IFF_RUNNING) 3133 ieee80211_start_all(ic); 3134 } 3135 3136 static void 3137 iwi_stop_locked(void *priv) 3138 { 3139 struct iwi_softc *sc = priv; 3140 struct ifnet *ifp = sc->sc_ifp; 3141 3142 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 3143 3144 if (sc->sc_softled) { 3145 callout_stop(&sc->sc_ledtimer_callout); 3146 sc->sc_blinking = 0; 3147 } 3148 callout_stop(&sc->sc_wdtimer_callout); 3149 callout_stop(&sc->sc_rftimer_callout); 3150 3151 iwi_stop_master(sc); 3152 3153 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET); 3154 3155 /* reset rings */ 3156 iwi_reset_cmd_ring(sc, &sc->cmdq); 3157 iwi_reset_tx_ring(sc, &sc->txq[0]); 3158 iwi_reset_tx_ring(sc, &sc->txq[1]); 3159 iwi_reset_tx_ring(sc, &sc->txq[2]); 3160 iwi_reset_tx_ring(sc, &sc->txq[3]); 3161 iwi_reset_rx_ring(sc, &sc->rxq); 3162 3163 sc->sc_tx_timer = 0; 3164 sc->sc_state_timer = 0; 3165 sc->sc_busy_timer = 0; 3166 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED); 3167 sc->fw_state = IWI_FW_IDLE; 3168 wakeup(sc); 3169 } 3170 3171 static void 3172 iwi_stop(struct iwi_softc *sc) 3173 { 3174 iwi_stop_locked(sc); 3175 } 3176 3177 static void 3178 iwi_restart_task(void *arg, int npending) 3179 { 3180 struct iwi_softc *sc = arg; 3181 3182 wlan_serialize_enter(); 3183 iwi_init(sc); 3184 wlan_serialize_exit(); 3185 } 3186 3187 /* 3188 * Return whether or not the radio is enabled in hardware 3189 * (i.e. the rfkill switch is "off"). 3190 */ 3191 static int 3192 iwi_getrfkill(struct iwi_softc *sc) 3193 { 3194 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 3195 } 3196 3197 static void 3198 iwi_radio_on_task(void *arg, int pending) 3199 { 3200 struct iwi_softc *sc = arg; 3201 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 3202 3203 wlan_serialize_enter(); 3204 device_printf(sc->sc_dev, "radio turned on\n"); 3205 3206 iwi_init(sc); 3207 ieee80211_notify_radio(ic, 1); 3208 wlan_serialize_exit(); 3209 } 3210 3211 static void 3212 iwi_rfkill_poll(void *arg) 3213 { 3214 struct iwi_softc *sc = arg; 3215 3216 /* 3217 * Check for a change in rfkill state. We get an 3218 * interrupt when a radio is disabled but not when 3219 * it is enabled so we must poll for the latter. 3220 */ 3221 if (!iwi_getrfkill(sc)) { 3222 struct ifnet *ifp = sc->sc_ifp; 3223 struct ieee80211com *ic = ifp->if_l2com; 3224 3225 ieee80211_runtask(ic, &sc->sc_radiontask); 3226 return; 3227 } 3228 callout_reset(&sc->sc_rftimer_callout, 2*hz, iwi_rfkill_poll, sc); 3229 } 3230 3231 static void 3232 iwi_radio_off_task(void *arg, int pending) 3233 { 3234 struct iwi_softc *sc = arg; 3235 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 3236 3237 wlan_serialize_enter(); 3238 device_printf(sc->sc_dev, "radio turned off\n"); 3239 3240 ieee80211_notify_radio(ic, 0); 3241 3242 iwi_stop_locked(sc); 3243 iwi_rfkill_poll(sc); 3244 wlan_serialize_exit(); 3245 } 3246 3247 static int 3248 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS) 3249 { 3250 struct iwi_softc *sc = arg1; 3251 uint32_t size, buf[128]; 3252 3253 memset(buf, 0, sizeof buf); 3254 3255 if (!(sc->flags & IWI_FLAG_FW_INITED)) 3256 return SYSCTL_OUT(req, buf, sizeof buf); 3257 3258 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 3259 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 3260 3261 return SYSCTL_OUT(req, buf, size); 3262 } 3263 3264 static int 3265 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS) 3266 { 3267 struct iwi_softc *sc = arg1; 3268 int val = !iwi_getrfkill(sc); 3269 3270 return SYSCTL_OUT(req, &val, sizeof val); 3271 } 3272 3273 /* 3274 * Add sysctl knobs. 3275 */ 3276 static void 3277 iwi_sysctlattach(struct iwi_softc *sc) 3278 { 3279 struct sysctl_ctx_list *ctx; 3280 struct sysctl_oid *tree; 3281 3282 ctx = &sc->sc_sysctl_ctx; 3283 sysctl_ctx_init(ctx); 3284 3285 tree = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_hw), 3286 OID_AUTO, 3287 device_get_nameunit(sc->sc_dev), 3288 CTLFLAG_RD, 0, ""); 3289 if (tree == NULL) { 3290 device_printf(sc->sc_dev, "can't add sysctl node\n"); 3291 return; 3292 } 3293 3294 sc->sc_sysctl_tree = tree; 3295 3296 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio", 3297 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I", 3298 "radio transmitter switch state (0=off, 1=on)"); 3299 3300 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats", 3301 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S", 3302 "statistics"); 3303 3304 sc->bluetooth = 0; 3305 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth", 3306 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence"); 3307 3308 sc->antenna = IWI_ANTENNA_AUTO; 3309 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna", 3310 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)"); 3311 } 3312 3313 /* 3314 * LED support. 3315 * 3316 * Different cards have different capabilities. Some have three 3317 * led's while others have only one. The linux ipw driver defines 3318 * led's for link state (associated or not), band (11a, 11g, 11b), 3319 * and for link activity. We use one led and vary the blink rate 3320 * according to the tx/rx traffic a la the ath driver. 3321 */ 3322 3323 static __inline uint32_t 3324 iwi_toggle_event(uint32_t r) 3325 { 3326 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA | 3327 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA); 3328 } 3329 3330 static uint32_t 3331 iwi_read_event(struct iwi_softc *sc) 3332 { 3333 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT); 3334 } 3335 3336 static void 3337 iwi_write_event(struct iwi_softc *sc, uint32_t v) 3338 { 3339 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v); 3340 } 3341 3342 static void 3343 iwi_led_done(void *arg) 3344 { 3345 struct iwi_softc *sc = arg; 3346 3347 sc->sc_blinking = 0; 3348 } 3349 3350 /* 3351 * Turn the activity LED off: flip the pin and then set a timer so no 3352 * update will happen for the specified duration. 3353 */ 3354 static void 3355 iwi_led_off(void *arg) 3356 { 3357 struct iwi_softc *sc = arg; 3358 uint32_t v; 3359 3360 v = iwi_read_event(sc); 3361 v &= ~sc->sc_ledpin; 3362 iwi_write_event(sc, iwi_toggle_event(v)); 3363 callout_reset(&sc->sc_ledtimer_callout, sc->sc_ledoff, iwi_led_done, sc); 3364 } 3365 3366 /* 3367 * Blink the LED according to the specified on/off times. 3368 */ 3369 static void 3370 iwi_led_blink(struct iwi_softc *sc, int on, int off) 3371 { 3372 uint32_t v; 3373 3374 v = iwi_read_event(sc); 3375 v |= sc->sc_ledpin; 3376 iwi_write_event(sc, iwi_toggle_event(v)); 3377 sc->sc_blinking = 1; 3378 sc->sc_ledoff = off; 3379 callout_reset(&sc->sc_ledtimer_callout, on, iwi_led_off, sc); 3380 } 3381 3382 static void 3383 iwi_led_event(struct iwi_softc *sc, int event) 3384 { 3385 /* NB: on/off times from the Atheros NDIS driver, w/ permission */ 3386 static const struct { 3387 u_int rate; /* tx/rx iwi rate */ 3388 u_int16_t timeOn; /* LED on time (ms) */ 3389 u_int16_t timeOff; /* LED off time (ms) */ 3390 } blinkrates[] = { 3391 { IWI_RATE_OFDM54, 40, 10 }, 3392 { IWI_RATE_OFDM48, 44, 11 }, 3393 { IWI_RATE_OFDM36, 50, 13 }, 3394 { IWI_RATE_OFDM24, 57, 14 }, 3395 { IWI_RATE_OFDM18, 67, 16 }, 3396 { IWI_RATE_OFDM12, 80, 20 }, 3397 { IWI_RATE_DS11, 100, 25 }, 3398 { IWI_RATE_OFDM9, 133, 34 }, 3399 { IWI_RATE_OFDM6, 160, 40 }, 3400 { IWI_RATE_DS5, 200, 50 }, 3401 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */ 3402 { IWI_RATE_DS2, 267, 66 }, 3403 { IWI_RATE_DS1, 400, 100 }, 3404 { 0, 500, 130 }, /* unknown rate/polling */ 3405 }; 3406 uint32_t txrate; 3407 int j = 0; /* XXX silence compiler */ 3408 3409 sc->sc_ledevent = ticks; /* time of last event */ 3410 if (sc->sc_blinking) /* don't interrupt active blink */ 3411 return; 3412 switch (event) { 3413 case IWI_LED_POLL: 3414 j = NELEM(blinkrates)-1; 3415 break; 3416 case IWI_LED_TX: 3417 /* read current transmission rate from adapter */ 3418 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE); 3419 if (blinkrates[sc->sc_txrix].rate != txrate) { 3420 for (j = 0; j < NELEM(blinkrates)-1; j++) 3421 if (blinkrates[j].rate == txrate) 3422 break; 3423 sc->sc_txrix = j; 3424 } else 3425 j = sc->sc_txrix; 3426 break; 3427 case IWI_LED_RX: 3428 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) { 3429 for (j = 0; j < NELEM(blinkrates)-1; j++) 3430 if (blinkrates[j].rate == sc->sc_rxrate) 3431 break; 3432 sc->sc_rxrix = j; 3433 } else 3434 j = sc->sc_rxrix; 3435 break; 3436 } 3437 /* XXX beware of overflow */ 3438 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000, 3439 (blinkrates[j].timeOff * hz) / 1000); 3440 } 3441 3442 static int 3443 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS) 3444 { 3445 struct iwi_softc *sc = arg1; 3446 int softled = sc->sc_softled; 3447 int error; 3448 3449 error = sysctl_handle_int(oidp, &softled, 0, req); 3450 if (error || !req->newptr) 3451 return error; 3452 softled = (softled != 0); 3453 if (softled != sc->sc_softled) { 3454 if (softled) { 3455 uint32_t v = iwi_read_event(sc); 3456 v &= ~sc->sc_ledpin; 3457 iwi_write_event(sc, iwi_toggle_event(v)); 3458 } 3459 sc->sc_softled = softled; 3460 } 3461 return 0; 3462 } 3463 3464 static void 3465 iwi_ledattach(struct iwi_softc *sc) 3466 { 3467 struct sysctl_ctx_list *ctx = &sc->sc_sysctl_ctx; 3468 struct sysctl_oid *tree = sc->sc_sysctl_tree; 3469 3470 sc->sc_blinking = 0; 3471 sc->sc_ledstate = 1; 3472 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */ 3473 callout_init(&sc->sc_ledtimer_callout); 3474 3475 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3476 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 3477 iwi_sysctl_softled, "I", "enable/disable software LED support"); 3478 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3479 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0, 3480 "pin setting to turn activity LED on"); 3481 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3482 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0, 3483 "idle time for inactivity LED (ticks)"); 3484 /* XXX for debugging */ 3485 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3486 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0, 3487 "NIC type from EEPROM"); 3488 3489 sc->sc_ledpin = IWI_RST_LED_ACTIVITY; 3490 sc->sc_softled = 1; 3491 3492 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff; 3493 if (sc->sc_nictype == 1) { 3494 /* 3495 * NB: led's are reversed. 3496 */ 3497 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED; 3498 } 3499 } 3500 3501 static void 3502 iwi_scan_start(struct ieee80211com *ic) 3503 { 3504 /* ignore */ 3505 } 3506 3507 static void 3508 iwi_set_channel(struct ieee80211com *ic) 3509 { 3510 struct ifnet *ifp = ic->ic_ifp; 3511 struct iwi_softc *sc = ifp->if_softc; 3512 if (sc->fw_state == IWI_FW_IDLE) 3513 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee); 3514 } 3515 3516 static void 3517 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 3518 { 3519 struct ieee80211vap *vap = ss->ss_vap; 3520 struct ifnet *ifp = vap->iv_ic->ic_ifp; 3521 struct iwi_softc *sc = ifp->if_softc; 3522 3523 if (iwi_scanchan(sc, maxdwell, 0)) 3524 ieee80211_cancel_scan(vap); 3525 } 3526 3527 static void 3528 iwi_scan_mindwell(struct ieee80211_scan_state *ss) 3529 { 3530 /* NB: don't try to abort scan; wait for firmware to finish */ 3531 } 3532 3533 static void 3534 iwi_scan_end(struct ieee80211com *ic) 3535 { 3536 struct ifnet *ifp = ic->ic_ifp; 3537 struct iwi_softc *sc = ifp->if_softc; 3538 3539 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN; 3540 /* NB: make sure we're still scanning */ 3541 if (sc->fw_state == IWI_FW_SCANNING) 3542 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0); 3543 } 3544