1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004, 2005 5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6 * Copyright (c) 2005-2006 Sam Leffler, Errno Consulting 7 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice unmodified, this list of conditions, and the following 14 * disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 /*- 36 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 37 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 38 */ 39 40 #include <sys/param.h> 41 #include <sys/sysctl.h> 42 #include <sys/sockio.h> 43 #include <sys/mbuf.h> 44 #include <sys/kernel.h> 45 #include <sys/socket.h> 46 #include <sys/systm.h> 47 #include <sys/malloc.h> 48 #include <sys/lock.h> 49 #include <sys/mutex.h> 50 #include <sys/module.h> 51 #include <sys/bus.h> 52 #include <sys/endian.h> 53 #include <sys/proc.h> 54 #include <sys/mount.h> 55 #include <sys/namei.h> 56 #include <sys/linker.h> 57 #include <sys/firmware.h> 58 #include <sys/taskqueue.h> 59 60 #include <machine/bus.h> 61 #include <machine/resource.h> 62 #include <sys/rman.h> 63 64 #include <dev/pci/pcireg.h> 65 #include <dev/pci/pcivar.h> 66 67 #include <net/bpf.h> 68 #include <net/if.h> 69 #include <net/if_var.h> 70 #include <net/if_arp.h> 71 #include <net/ethernet.h> 72 #include <net/if_dl.h> 73 #include <net/if_media.h> 74 #include <net/if_types.h> 75 76 #include <net80211/ieee80211_var.h> 77 #include <net80211/ieee80211_radiotap.h> 78 #include <net80211/ieee80211_input.h> 79 #include <net80211/ieee80211_regdomain.h> 80 81 #include <netinet/in.h> 82 #include <netinet/in_systm.h> 83 #include <netinet/in_var.h> 84 #include <netinet/ip.h> 85 #include <netinet/if_ether.h> 86 87 #include <dev/iwi/if_iwireg.h> 88 #include <dev/iwi/if_iwivar.h> 89 #include <dev/iwi/if_iwi_ioctl.h> 90 91 #define IWI_DEBUG 92 #ifdef IWI_DEBUG 93 #define DPRINTF(x) do { if (iwi_debug > 0) printf x; } while (0) 94 #define DPRINTFN(n, x) do { if (iwi_debug >= (n)) printf x; } while (0) 95 int iwi_debug = 0; 96 SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); 97 98 static const char *iwi_fw_states[] = { 99 "IDLE", /* IWI_FW_IDLE */ 100 "LOADING", /* IWI_FW_LOADING */ 101 "ASSOCIATING", /* IWI_FW_ASSOCIATING */ 102 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */ 103 "SCANNING", /* IWI_FW_SCANNING */ 104 }; 105 #else 106 #define DPRINTF(x) 107 #define DPRINTFN(n, x) 108 #endif 109 110 MODULE_DEPEND(iwi, pci, 1, 1, 1); 111 MODULE_DEPEND(iwi, wlan, 1, 1, 1); 112 MODULE_DEPEND(iwi, firmware, 1, 1, 1); 113 114 enum { 115 IWI_LED_TX, 116 IWI_LED_RX, 117 IWI_LED_POLL, 118 }; 119 120 struct iwi_ident { 121 uint16_t vendor; 122 uint16_t device; 123 const char *name; 124 }; 125 126 static const struct iwi_ident iwi_ident_table[] = { 127 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, 128 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, 129 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, 130 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, 131 132 { 0, 0, NULL } 133 }; 134 135 static const uint8_t def_chan_5ghz_band1[] = 136 { 36, 40, 44, 48, 52, 56, 60, 64 }; 137 static const uint8_t def_chan_5ghz_band2[] = 138 { 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 }; 139 static const uint8_t def_chan_5ghz_band3[] = 140 { 149, 153, 157, 161, 165 }; 141 142 static struct ieee80211vap *iwi_vap_create(struct ieee80211com *, 143 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 144 const uint8_t [IEEE80211_ADDR_LEN], 145 const uint8_t [IEEE80211_ADDR_LEN]); 146 static void iwi_vap_delete(struct ieee80211vap *); 147 static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 148 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 149 int); 150 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 151 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 152 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 153 int, bus_addr_t, bus_addr_t); 154 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 155 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 156 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 157 int); 158 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 159 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 160 static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *, 161 const uint8_t [IEEE80211_ADDR_LEN]); 162 static void iwi_node_free(struct ieee80211_node *); 163 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 164 static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 165 static void iwi_wme_init(struct iwi_softc *); 166 static int iwi_wme_setparams(struct iwi_softc *); 167 static int iwi_wme_update(struct ieee80211com *); 168 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 169 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 170 struct iwi_frame *); 171 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 172 static void iwi_rx_intr(struct iwi_softc *); 173 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 174 static void iwi_intr(void *); 175 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t); 176 static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int); 177 static int iwi_tx_start(struct iwi_softc *, struct mbuf *, 178 struct ieee80211_node *, int); 179 static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *, 180 const struct ieee80211_bpf_params *); 181 static void iwi_start(struct iwi_softc *); 182 static int iwi_transmit(struct ieee80211com *, struct mbuf *); 183 static void iwi_watchdog(void *); 184 static int iwi_ioctl(struct ieee80211com *, u_long, void *); 185 static void iwi_parent(struct ieee80211com *); 186 static void iwi_stop_master(struct iwi_softc *); 187 static int iwi_reset(struct iwi_softc *); 188 static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *); 189 static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *); 190 static void iwi_release_fw_dma(struct iwi_softc *sc); 191 static int iwi_config(struct iwi_softc *); 192 static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode); 193 static void iwi_put_firmware(struct iwi_softc *); 194 static void iwi_monitor_scan(void *, int); 195 static int iwi_scanchan(struct iwi_softc *, unsigned long, int); 196 static void iwi_scan_start(struct ieee80211com *); 197 static void iwi_scan_end(struct ieee80211com *); 198 static void iwi_set_channel(struct ieee80211com *); 199 static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell); 200 static void iwi_scan_mindwell(struct ieee80211_scan_state *); 201 static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *); 202 static void iwi_disassoc(void *, int); 203 static int iwi_disassociate(struct iwi_softc *, int quiet); 204 static void iwi_init_locked(struct iwi_softc *); 205 static void iwi_init(void *); 206 static int iwi_init_fw_dma(struct iwi_softc *, int); 207 static void iwi_stop_locked(void *); 208 static void iwi_stop(struct iwi_softc *); 209 static void iwi_restart(void *, int); 210 static int iwi_getrfkill(struct iwi_softc *); 211 static void iwi_radio_on(void *, int); 212 static void iwi_radio_off(void *, int); 213 static void iwi_sysctlattach(struct iwi_softc *); 214 static void iwi_led_event(struct iwi_softc *, int); 215 static void iwi_ledattach(struct iwi_softc *); 216 static void iwi_collect_bands(struct ieee80211com *, uint8_t [], size_t); 217 static void iwi_getradiocaps(struct ieee80211com *, int, int *, 218 struct ieee80211_channel []); 219 220 static int iwi_probe(device_t); 221 static int iwi_attach(device_t); 222 static int iwi_detach(device_t); 223 static int iwi_shutdown(device_t); 224 static int iwi_suspend(device_t); 225 static int iwi_resume(device_t); 226 227 static device_method_t iwi_methods[] = { 228 /* Device interface */ 229 DEVMETHOD(device_probe, iwi_probe), 230 DEVMETHOD(device_attach, iwi_attach), 231 DEVMETHOD(device_detach, iwi_detach), 232 DEVMETHOD(device_shutdown, iwi_shutdown), 233 DEVMETHOD(device_suspend, iwi_suspend), 234 DEVMETHOD(device_resume, iwi_resume), 235 236 DEVMETHOD_END 237 }; 238 239 static driver_t iwi_driver = { 240 "iwi", 241 iwi_methods, 242 sizeof (struct iwi_softc) 243 }; 244 245 static devclass_t iwi_devclass; 246 247 DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL); 248 249 MODULE_VERSION(iwi, 1); 250 251 static __inline uint8_t 252 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 253 { 254 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 255 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 256 } 257 258 static __inline uint32_t 259 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 260 { 261 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 262 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 263 } 264 265 static int 266 iwi_probe(device_t dev) 267 { 268 const struct iwi_ident *ident; 269 270 for (ident = iwi_ident_table; ident->name != NULL; ident++) { 271 if (pci_get_vendor(dev) == ident->vendor && 272 pci_get_device(dev) == ident->device) { 273 device_set_desc(dev, ident->name); 274 return (BUS_PROBE_DEFAULT); 275 } 276 } 277 return ENXIO; 278 } 279 280 static int 281 iwi_attach(device_t dev) 282 { 283 struct iwi_softc *sc = device_get_softc(dev); 284 struct ieee80211com *ic = &sc->sc_ic; 285 uint16_t val; 286 int i, error; 287 288 sc->sc_dev = dev; 289 sc->sc_ledevent = ticks; 290 291 IWI_LOCK_INIT(sc); 292 mbufq_init(&sc->sc_snd, ifqmaxlen); 293 294 sc->sc_unr = new_unrhdr(1, IWI_MAX_IBSSNODE-1, &sc->sc_mtx); 295 296 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc); 297 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc); 298 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc); 299 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc); 300 TASK_INIT(&sc->sc_monitortask, 0, iwi_monitor_scan, sc); 301 302 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0); 303 callout_init_mtx(&sc->sc_rftimer, &sc->sc_mtx, 0); 304 305 pci_write_config(dev, 0x41, 0, 1); 306 307 /* enable bus-mastering */ 308 pci_enable_busmaster(dev); 309 310 i = PCIR_BAR(0); 311 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE); 312 if (sc->mem == NULL) { 313 device_printf(dev, "could not allocate memory resource\n"); 314 goto fail; 315 } 316 317 sc->sc_st = rman_get_bustag(sc->mem); 318 sc->sc_sh = rman_get_bushandle(sc->mem); 319 320 i = 0; 321 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, 322 RF_ACTIVE | RF_SHAREABLE); 323 if (sc->irq == NULL) { 324 device_printf(dev, "could not allocate interrupt resource\n"); 325 goto fail; 326 } 327 328 if (iwi_reset(sc) != 0) { 329 device_printf(dev, "could not reset adapter\n"); 330 goto fail; 331 } 332 333 /* 334 * Allocate rings. 335 */ 336 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 337 device_printf(dev, "could not allocate Cmd ring\n"); 338 goto fail; 339 } 340 341 for (i = 0; i < 4; i++) { 342 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT, 343 IWI_CSR_TX1_RIDX + i * 4, 344 IWI_CSR_TX1_WIDX + i * 4); 345 if (error != 0) { 346 device_printf(dev, "could not allocate Tx ring %d\n", 347 i+i); 348 goto fail; 349 } 350 } 351 352 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 353 device_printf(dev, "could not allocate Rx ring\n"); 354 goto fail; 355 } 356 357 iwi_wme_init(sc); 358 359 ic->ic_softc = sc; 360 ic->ic_name = device_get_nameunit(dev); 361 ic->ic_opmode = IEEE80211_M_STA; 362 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 363 364 /* set device capabilities */ 365 ic->ic_caps = 366 IEEE80211_C_STA /* station mode supported */ 367 | IEEE80211_C_IBSS /* IBSS mode supported */ 368 | IEEE80211_C_MONITOR /* monitor mode supported */ 369 | IEEE80211_C_PMGT /* power save supported */ 370 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 371 | IEEE80211_C_WPA /* 802.11i */ 372 | IEEE80211_C_WME /* 802.11e */ 373 #if 0 374 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 375 #endif 376 ; 377 378 /* read MAC address from EEPROM */ 379 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 380 ic->ic_macaddr[0] = val & 0xff; 381 ic->ic_macaddr[1] = val >> 8; 382 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 383 ic->ic_macaddr[2] = val & 0xff; 384 ic->ic_macaddr[3] = val >> 8; 385 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 386 ic->ic_macaddr[4] = val & 0xff; 387 ic->ic_macaddr[5] = val >> 8; 388 389 iwi_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 390 ic->ic_channels); 391 392 ieee80211_ifattach(ic); 393 /* override default methods */ 394 ic->ic_node_alloc = iwi_node_alloc; 395 sc->sc_node_free = ic->ic_node_free; 396 ic->ic_node_free = iwi_node_free; 397 ic->ic_raw_xmit = iwi_raw_xmit; 398 ic->ic_scan_start = iwi_scan_start; 399 ic->ic_scan_end = iwi_scan_end; 400 ic->ic_set_channel = iwi_set_channel; 401 ic->ic_scan_curchan = iwi_scan_curchan; 402 ic->ic_scan_mindwell = iwi_scan_mindwell; 403 ic->ic_wme.wme_update = iwi_wme_update; 404 405 ic->ic_vap_create = iwi_vap_create; 406 ic->ic_vap_delete = iwi_vap_delete; 407 ic->ic_ioctl = iwi_ioctl; 408 ic->ic_transmit = iwi_transmit; 409 ic->ic_parent = iwi_parent; 410 ic->ic_getradiocaps = iwi_getradiocaps; 411 412 ieee80211_radiotap_attach(ic, 413 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 414 IWI_TX_RADIOTAP_PRESENT, 415 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 416 IWI_RX_RADIOTAP_PRESENT); 417 418 iwi_sysctlattach(sc); 419 iwi_ledattach(sc); 420 421 /* 422 * Hook our interrupt after all initialization is complete. 423 */ 424 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 425 NULL, iwi_intr, sc, &sc->sc_ih); 426 if (error != 0) { 427 device_printf(dev, "could not set up interrupt\n"); 428 goto fail; 429 } 430 431 if (bootverbose) 432 ieee80211_announce(ic); 433 434 return 0; 435 fail: 436 /* XXX fix */ 437 iwi_detach(dev); 438 return ENXIO; 439 } 440 441 static int 442 iwi_detach(device_t dev) 443 { 444 struct iwi_softc *sc = device_get_softc(dev); 445 struct ieee80211com *ic = &sc->sc_ic; 446 447 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 448 449 /* NB: do early to drain any pending tasks */ 450 ieee80211_draintask(ic, &sc->sc_radiontask); 451 ieee80211_draintask(ic, &sc->sc_radiofftask); 452 ieee80211_draintask(ic, &sc->sc_restarttask); 453 ieee80211_draintask(ic, &sc->sc_disassoctask); 454 ieee80211_draintask(ic, &sc->sc_monitortask); 455 456 iwi_stop(sc); 457 458 ieee80211_ifdetach(ic); 459 460 iwi_put_firmware(sc); 461 iwi_release_fw_dma(sc); 462 463 iwi_free_cmd_ring(sc, &sc->cmdq); 464 iwi_free_tx_ring(sc, &sc->txq[0]); 465 iwi_free_tx_ring(sc, &sc->txq[1]); 466 iwi_free_tx_ring(sc, &sc->txq[2]); 467 iwi_free_tx_ring(sc, &sc->txq[3]); 468 iwi_free_rx_ring(sc, &sc->rxq); 469 470 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq); 471 472 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem), 473 sc->mem); 474 475 delete_unrhdr(sc->sc_unr); 476 mbufq_drain(&sc->sc_snd); 477 478 IWI_LOCK_DESTROY(sc); 479 480 return 0; 481 } 482 483 static struct ieee80211vap * 484 iwi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 485 enum ieee80211_opmode opmode, int flags, 486 const uint8_t bssid[IEEE80211_ADDR_LEN], 487 const uint8_t mac[IEEE80211_ADDR_LEN]) 488 { 489 struct iwi_softc *sc = ic->ic_softc; 490 struct iwi_vap *ivp; 491 struct ieee80211vap *vap; 492 int i; 493 494 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 495 return NULL; 496 /* 497 * Get firmware image (and possibly dma memory) on mode change. 498 */ 499 if (iwi_get_firmware(sc, opmode)) 500 return NULL; 501 /* allocate DMA memory for mapping firmware image */ 502 i = sc->fw_fw.size; 503 if (sc->fw_boot.size > i) 504 i = sc->fw_boot.size; 505 /* XXX do we dma the ucode as well ? */ 506 if (sc->fw_uc.size > i) 507 i = sc->fw_uc.size; 508 if (iwi_init_fw_dma(sc, i)) 509 return NULL; 510 511 ivp = malloc(sizeof(struct iwi_vap), M_80211_VAP, M_WAITOK | M_ZERO); 512 vap = &ivp->iwi_vap; 513 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 514 /* override the default, the setting comes from the linux driver */ 515 vap->iv_bmissthreshold = 24; 516 /* override with driver methods */ 517 ivp->iwi_newstate = vap->iv_newstate; 518 vap->iv_newstate = iwi_newstate; 519 520 /* complete setup */ 521 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status, 522 mac); 523 ic->ic_opmode = opmode; 524 return vap; 525 } 526 527 static void 528 iwi_vap_delete(struct ieee80211vap *vap) 529 { 530 struct iwi_vap *ivp = IWI_VAP(vap); 531 532 ieee80211_vap_detach(vap); 533 free(ivp, M_80211_VAP); 534 } 535 536 static void 537 iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 538 { 539 if (error != 0) 540 return; 541 542 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 543 544 *(bus_addr_t *)arg = segs[0].ds_addr; 545 } 546 547 static int 548 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) 549 { 550 int error; 551 552 ring->count = count; 553 ring->queued = 0; 554 ring->cur = ring->next = 0; 555 556 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 557 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 558 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 0, 559 NULL, NULL, &ring->desc_dmat); 560 if (error != 0) { 561 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 562 goto fail; 563 } 564 565 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 566 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 567 if (error != 0) { 568 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 569 goto fail; 570 } 571 572 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 573 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 574 if (error != 0) { 575 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 576 goto fail; 577 } 578 579 return 0; 580 581 fail: iwi_free_cmd_ring(sc, ring); 582 return error; 583 } 584 585 static void 586 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 587 { 588 ring->queued = 0; 589 ring->cur = ring->next = 0; 590 } 591 592 static void 593 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 594 { 595 if (ring->desc != NULL) { 596 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 597 BUS_DMASYNC_POSTWRITE); 598 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 599 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 600 } 601 602 if (ring->desc_dmat != NULL) 603 bus_dma_tag_destroy(ring->desc_dmat); 604 } 605 606 static int 607 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, 608 bus_addr_t csr_ridx, bus_addr_t csr_widx) 609 { 610 int i, error; 611 612 ring->count = count; 613 ring->queued = 0; 614 ring->cur = ring->next = 0; 615 ring->csr_ridx = csr_ridx; 616 ring->csr_widx = csr_widx; 617 618 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 619 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 620 count * IWI_TX_DESC_SIZE, 1, count * IWI_TX_DESC_SIZE, 0, NULL, 621 NULL, &ring->desc_dmat); 622 if (error != 0) { 623 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 624 goto fail; 625 } 626 627 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 628 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 629 if (error != 0) { 630 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 631 goto fail; 632 } 633 634 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 635 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 636 if (error != 0) { 637 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 638 goto fail; 639 } 640 641 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 642 M_NOWAIT | M_ZERO); 643 if (ring->data == NULL) { 644 device_printf(sc->sc_dev, "could not allocate soft data\n"); 645 error = ENOMEM; 646 goto fail; 647 } 648 649 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 650 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 651 IWI_MAX_NSEG, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 652 if (error != 0) { 653 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 654 goto fail; 655 } 656 657 for (i = 0; i < count; i++) { 658 error = bus_dmamap_create(ring->data_dmat, 0, 659 &ring->data[i].map); 660 if (error != 0) { 661 device_printf(sc->sc_dev, "could not create DMA map\n"); 662 goto fail; 663 } 664 } 665 666 return 0; 667 668 fail: iwi_free_tx_ring(sc, ring); 669 return error; 670 } 671 672 static void 673 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 674 { 675 struct iwi_tx_data *data; 676 int i; 677 678 for (i = 0; i < ring->count; i++) { 679 data = &ring->data[i]; 680 681 if (data->m != NULL) { 682 bus_dmamap_sync(ring->data_dmat, data->map, 683 BUS_DMASYNC_POSTWRITE); 684 bus_dmamap_unload(ring->data_dmat, data->map); 685 m_freem(data->m); 686 data->m = NULL; 687 } 688 689 if (data->ni != NULL) { 690 ieee80211_free_node(data->ni); 691 data->ni = NULL; 692 } 693 } 694 695 ring->queued = 0; 696 ring->cur = ring->next = 0; 697 } 698 699 static void 700 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 701 { 702 struct iwi_tx_data *data; 703 int i; 704 705 if (ring->desc != NULL) { 706 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 707 BUS_DMASYNC_POSTWRITE); 708 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 709 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 710 } 711 712 if (ring->desc_dmat != NULL) 713 bus_dma_tag_destroy(ring->desc_dmat); 714 715 if (ring->data != NULL) { 716 for (i = 0; i < ring->count; i++) { 717 data = &ring->data[i]; 718 719 if (data->m != NULL) { 720 bus_dmamap_sync(ring->data_dmat, data->map, 721 BUS_DMASYNC_POSTWRITE); 722 bus_dmamap_unload(ring->data_dmat, data->map); 723 m_freem(data->m); 724 } 725 726 if (data->ni != NULL) 727 ieee80211_free_node(data->ni); 728 729 if (data->map != NULL) 730 bus_dmamap_destroy(ring->data_dmat, data->map); 731 } 732 733 free(ring->data, M_DEVBUF); 734 } 735 736 if (ring->data_dmat != NULL) 737 bus_dma_tag_destroy(ring->data_dmat); 738 } 739 740 static int 741 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 742 { 743 struct iwi_rx_data *data; 744 int i, error; 745 746 ring->count = count; 747 ring->cur = 0; 748 749 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 750 M_NOWAIT | M_ZERO); 751 if (ring->data == NULL) { 752 device_printf(sc->sc_dev, "could not allocate soft data\n"); 753 error = ENOMEM; 754 goto fail; 755 } 756 757 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 758 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 759 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 760 if (error != 0) { 761 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 762 goto fail; 763 } 764 765 for (i = 0; i < count; i++) { 766 data = &ring->data[i]; 767 768 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 769 if (error != 0) { 770 device_printf(sc->sc_dev, "could not create DMA map\n"); 771 goto fail; 772 } 773 774 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 775 if (data->m == NULL) { 776 device_printf(sc->sc_dev, 777 "could not allocate rx mbuf\n"); 778 error = ENOMEM; 779 goto fail; 780 } 781 782 error = bus_dmamap_load(ring->data_dmat, data->map, 783 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 784 &data->physaddr, 0); 785 if (error != 0) { 786 device_printf(sc->sc_dev, 787 "could not load rx buf DMA map"); 788 goto fail; 789 } 790 791 data->reg = IWI_CSR_RX_BASE + i * 4; 792 } 793 794 return 0; 795 796 fail: iwi_free_rx_ring(sc, ring); 797 return error; 798 } 799 800 static void 801 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 802 { 803 ring->cur = 0; 804 } 805 806 static void 807 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 808 { 809 struct iwi_rx_data *data; 810 int i; 811 812 if (ring->data != NULL) { 813 for (i = 0; i < ring->count; i++) { 814 data = &ring->data[i]; 815 816 if (data->m != NULL) { 817 bus_dmamap_sync(ring->data_dmat, data->map, 818 BUS_DMASYNC_POSTREAD); 819 bus_dmamap_unload(ring->data_dmat, data->map); 820 m_freem(data->m); 821 } 822 823 if (data->map != NULL) 824 bus_dmamap_destroy(ring->data_dmat, data->map); 825 } 826 827 free(ring->data, M_DEVBUF); 828 } 829 830 if (ring->data_dmat != NULL) 831 bus_dma_tag_destroy(ring->data_dmat); 832 } 833 834 static int 835 iwi_shutdown(device_t dev) 836 { 837 struct iwi_softc *sc = device_get_softc(dev); 838 839 iwi_stop(sc); 840 iwi_put_firmware(sc); /* ??? XXX */ 841 842 return 0; 843 } 844 845 static int 846 iwi_suspend(device_t dev) 847 { 848 struct iwi_softc *sc = device_get_softc(dev); 849 struct ieee80211com *ic = &sc->sc_ic; 850 851 ieee80211_suspend_all(ic); 852 return 0; 853 } 854 855 static int 856 iwi_resume(device_t dev) 857 { 858 struct iwi_softc *sc = device_get_softc(dev); 859 struct ieee80211com *ic = &sc->sc_ic; 860 861 pci_write_config(dev, 0x41, 0, 1); 862 863 ieee80211_resume_all(ic); 864 return 0; 865 } 866 867 static struct ieee80211_node * 868 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 869 { 870 struct iwi_node *in; 871 872 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 873 if (in == NULL) 874 return NULL; 875 /* XXX assign sta table entry for adhoc */ 876 in->in_station = -1; 877 878 return &in->in_node; 879 } 880 881 static void 882 iwi_node_free(struct ieee80211_node *ni) 883 { 884 struct ieee80211com *ic = ni->ni_ic; 885 struct iwi_softc *sc = ic->ic_softc; 886 struct iwi_node *in = (struct iwi_node *)ni; 887 888 if (in->in_station != -1) { 889 DPRINTF(("%s mac %6D station %u\n", __func__, 890 ni->ni_macaddr, ":", in->in_station)); 891 free_unr(sc->sc_unr, in->in_station); 892 } 893 894 sc->sc_node_free(ni); 895 } 896 897 /* 898 * Convert h/w rate code to IEEE rate code. 899 */ 900 static int 901 iwi_cvtrate(int iwirate) 902 { 903 switch (iwirate) { 904 case IWI_RATE_DS1: return 2; 905 case IWI_RATE_DS2: return 4; 906 case IWI_RATE_DS5: return 11; 907 case IWI_RATE_DS11: return 22; 908 case IWI_RATE_OFDM6: return 12; 909 case IWI_RATE_OFDM9: return 18; 910 case IWI_RATE_OFDM12: return 24; 911 case IWI_RATE_OFDM18: return 36; 912 case IWI_RATE_OFDM24: return 48; 913 case IWI_RATE_OFDM36: return 72; 914 case IWI_RATE_OFDM48: return 96; 915 case IWI_RATE_OFDM54: return 108; 916 } 917 return 0; 918 } 919 920 /* 921 * The firmware automatically adapts the transmit speed. We report its current 922 * value here. 923 */ 924 static void 925 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 926 { 927 struct ieee80211vap *vap = ifp->if_softc; 928 struct ieee80211com *ic = vap->iv_ic; 929 struct iwi_softc *sc = ic->ic_softc; 930 struct ieee80211_node *ni; 931 932 /* read current transmission rate from adapter */ 933 ni = ieee80211_ref_node(vap->iv_bss); 934 ni->ni_txrate = 935 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 936 ieee80211_free_node(ni); 937 ieee80211_media_status(ifp, imr); 938 } 939 940 static int 941 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 942 { 943 struct iwi_vap *ivp = IWI_VAP(vap); 944 struct ieee80211com *ic = vap->iv_ic; 945 struct iwi_softc *sc = ic->ic_softc; 946 IWI_LOCK_DECL; 947 948 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 949 ieee80211_state_name[vap->iv_state], 950 ieee80211_state_name[nstate], sc->flags)); 951 952 IEEE80211_UNLOCK(ic); 953 IWI_LOCK(sc); 954 switch (nstate) { 955 case IEEE80211_S_INIT: 956 /* 957 * NB: don't try to do this if iwi_stop_master has 958 * shutdown the firmware and disabled interrupts. 959 */ 960 if (vap->iv_state == IEEE80211_S_RUN && 961 (sc->flags & IWI_FLAG_FW_INITED)) 962 iwi_disassociate(sc, 0); 963 break; 964 case IEEE80211_S_AUTH: 965 iwi_auth_and_assoc(sc, vap); 966 break; 967 case IEEE80211_S_RUN: 968 if (vap->iv_opmode == IEEE80211_M_IBSS && 969 vap->iv_state == IEEE80211_S_SCAN) { 970 /* 971 * XXX when joining an ibss network we are called 972 * with a SCAN -> RUN transition on scan complete. 973 * Use that to call iwi_auth_and_assoc. On completing 974 * the join we are then called again with an 975 * AUTH -> RUN transition and we want to do nothing. 976 * This is all totally bogus and needs to be redone. 977 */ 978 iwi_auth_and_assoc(sc, vap); 979 } else if (vap->iv_opmode == IEEE80211_M_MONITOR) 980 ieee80211_runtask(ic, &sc->sc_monitortask); 981 break; 982 case IEEE80211_S_ASSOC: 983 /* 984 * If we are transitioning from AUTH then just wait 985 * for the ASSOC status to come back from the firmware. 986 * Otherwise we need to issue the association request. 987 */ 988 if (vap->iv_state == IEEE80211_S_AUTH) 989 break; 990 iwi_auth_and_assoc(sc, vap); 991 break; 992 default: 993 break; 994 } 995 IWI_UNLOCK(sc); 996 IEEE80211_LOCK(ic); 997 return ivp->iwi_newstate(vap, nstate, arg); 998 } 999 1000 /* 1001 * WME parameters coming from IEEE 802.11e specification. These values are 1002 * already declared in ieee80211_proto.c, but they are static so they can't 1003 * be reused here. 1004 */ 1005 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 1006 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ 1007 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ 1008 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ 1009 { 0, 2, 3, 4, 102 } /* WME_AC_VO */ 1010 }; 1011 1012 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 1013 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ 1014 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ 1015 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ 1016 { 0, 2, 2, 3, 47 } /* WME_AC_VO */ 1017 }; 1018 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 1019 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1020 1021 static void 1022 iwi_wme_init(struct iwi_softc *sc) 1023 { 1024 const struct wmeParams *wmep; 1025 int ac; 1026 1027 memset(sc->wme, 0, sizeof sc->wme); 1028 for (ac = 0; ac < WME_NUM_AC; ac++) { 1029 /* set WME values for CCK modulation */ 1030 wmep = &iwi_wme_cck_params[ac]; 1031 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn; 1032 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1033 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1034 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1035 sc->wme[1].acm[ac] = wmep->wmep_acm; 1036 1037 /* set WME values for OFDM modulation */ 1038 wmep = &iwi_wme_ofdm_params[ac]; 1039 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn; 1040 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1041 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1042 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1043 sc->wme[2].acm[ac] = wmep->wmep_acm; 1044 } 1045 } 1046 1047 static int 1048 iwi_wme_setparams(struct iwi_softc *sc) 1049 { 1050 struct ieee80211com *ic = &sc->sc_ic; 1051 struct chanAccParams chp; 1052 const struct wmeParams *wmep; 1053 int ac; 1054 1055 ieee80211_wme_ic_getparams(ic, &chp); 1056 1057 for (ac = 0; ac < WME_NUM_AC; ac++) { 1058 /* set WME values for current operating mode */ 1059 wmep = &chp.cap_wmeParams[ac]; 1060 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn; 1061 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1062 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1063 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1064 sc->wme[0].acm[ac] = wmep->wmep_acm; 1065 } 1066 1067 DPRINTF(("Setting WME parameters\n")); 1068 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme); 1069 } 1070 #undef IWI_USEC 1071 #undef IWI_EXP2 1072 1073 static int 1074 iwi_wme_update(struct ieee80211com *ic) 1075 { 1076 struct iwi_softc *sc = ic->ic_softc; 1077 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1078 IWI_LOCK_DECL; 1079 1080 /* 1081 * We may be called to update the WME parameters in 1082 * the adapter at various places. If we're already 1083 * associated then initiate the request immediately; 1084 * otherwise we assume the params will get sent down 1085 * to the adapter as part of the work iwi_auth_and_assoc 1086 * does. 1087 */ 1088 if (vap->iv_state == IEEE80211_S_RUN) { 1089 IWI_LOCK(sc); 1090 iwi_wme_setparams(sc); 1091 IWI_UNLOCK(sc); 1092 } 1093 return (0); 1094 } 1095 1096 static int 1097 iwi_wme_setie(struct iwi_softc *sc) 1098 { 1099 struct ieee80211_wme_info wme; 1100 1101 memset(&wme, 0, sizeof wme); 1102 wme.wme_id = IEEE80211_ELEMID_VENDOR; 1103 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 1104 wme.wme_oui[0] = 0x00; 1105 wme.wme_oui[1] = 0x50; 1106 wme.wme_oui[2] = 0xf2; 1107 wme.wme_type = WME_OUI_TYPE; 1108 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 1109 wme.wme_version = WME_VERSION; 1110 wme.wme_info = 0; 1111 1112 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 1113 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme); 1114 } 1115 1116 /* 1117 * Read 16 bits at address 'addr' from the serial EEPROM. 1118 */ 1119 static uint16_t 1120 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1121 { 1122 uint32_t tmp; 1123 uint16_t val; 1124 int n; 1125 1126 /* clock C once before the first command */ 1127 IWI_EEPROM_CTL(sc, 0); 1128 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1129 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1130 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1131 1132 /* write start bit (1) */ 1133 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1134 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1135 1136 /* write READ opcode (10) */ 1137 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1138 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1139 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1140 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1141 1142 /* write address A7-A0 */ 1143 for (n = 7; n >= 0; n--) { 1144 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1145 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1146 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1147 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1148 } 1149 1150 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1151 1152 /* read data Q15-Q0 */ 1153 val = 0; 1154 for (n = 15; n >= 0; n--) { 1155 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1156 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1157 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1158 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1159 } 1160 1161 IWI_EEPROM_CTL(sc, 0); 1162 1163 /* clear Chip Select and clock C */ 1164 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1165 IWI_EEPROM_CTL(sc, 0); 1166 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1167 1168 return val; 1169 } 1170 1171 static void 1172 iwi_setcurchan(struct iwi_softc *sc, int chan) 1173 { 1174 struct ieee80211com *ic = &sc->sc_ic; 1175 1176 sc->curchan = chan; 1177 ieee80211_radiotap_chan_change(ic); 1178 } 1179 1180 static void 1181 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1182 struct iwi_frame *frame) 1183 { 1184 struct ieee80211com *ic = &sc->sc_ic; 1185 struct mbuf *mnew, *m; 1186 struct ieee80211_node *ni; 1187 int type, error, framelen; 1188 int8_t rssi, nf; 1189 IWI_LOCK_DECL; 1190 1191 framelen = le16toh(frame->len); 1192 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) { 1193 /* 1194 * XXX >MCLBYTES is bogus as it means the h/w dma'd 1195 * out of bounds; need to figure out how to limit 1196 * frame size in the firmware 1197 */ 1198 /* XXX stat */ 1199 DPRINTFN(1, 1200 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1201 le16toh(frame->len), frame->chan, frame->rssi, 1202 frame->rssi_dbm)); 1203 return; 1204 } 1205 1206 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1207 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm)); 1208 1209 if (frame->chan != sc->curchan) 1210 iwi_setcurchan(sc, frame->chan); 1211 1212 /* 1213 * Try to allocate a new mbuf for this ring element and load it before 1214 * processing the current mbuf. If the ring element cannot be loaded, 1215 * drop the received packet and reuse the old mbuf. In the unlikely 1216 * case that the old mbuf can't be reloaded either, explicitly panic. 1217 */ 1218 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1219 if (mnew == NULL) { 1220 counter_u64_add(ic->ic_ierrors, 1); 1221 return; 1222 } 1223 1224 bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1225 1226 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1227 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, 1228 0); 1229 if (error != 0) { 1230 m_freem(mnew); 1231 1232 /* try to reload the old mbuf */ 1233 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1234 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 1235 &data->physaddr, 0); 1236 if (error != 0) { 1237 /* very unlikely that it will fail... */ 1238 panic("%s: could not load old rx mbuf", 1239 device_get_name(sc->sc_dev)); 1240 } 1241 counter_u64_add(ic->ic_ierrors, 1); 1242 return; 1243 } 1244 1245 /* 1246 * New mbuf successfully loaded, update Rx ring and continue 1247 * processing. 1248 */ 1249 m = data->m; 1250 data->m = mnew; 1251 CSR_WRITE_4(sc, data->reg, data->physaddr); 1252 1253 /* finalize mbuf */ 1254 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1255 sizeof (struct iwi_frame) + framelen; 1256 1257 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1258 1259 rssi = frame->rssi_dbm; 1260 nf = -95; 1261 if (ieee80211_radiotap_active(ic)) { 1262 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1263 1264 tap->wr_flags = 0; 1265 tap->wr_antsignal = rssi; 1266 tap->wr_antnoise = nf; 1267 tap->wr_rate = iwi_cvtrate(frame->rate); 1268 tap->wr_antenna = frame->antenna; 1269 } 1270 IWI_UNLOCK(sc); 1271 1272 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1273 if (ni != NULL) { 1274 type = ieee80211_input(ni, m, rssi, nf); 1275 ieee80211_free_node(ni); 1276 } else 1277 type = ieee80211_input_all(ic, m, rssi, nf); 1278 1279 IWI_LOCK(sc); 1280 if (sc->sc_softled) { 1281 /* 1282 * Blink for any data frame. Otherwise do a 1283 * heartbeat-style blink when idle. The latter 1284 * is mainly for station mode where we depend on 1285 * periodic beacon frames to trigger the poll event. 1286 */ 1287 if (type == IEEE80211_FC0_TYPE_DATA) { 1288 sc->sc_rxrate = frame->rate; 1289 iwi_led_event(sc, IWI_LED_RX); 1290 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle) 1291 iwi_led_event(sc, IWI_LED_POLL); 1292 } 1293 } 1294 1295 /* 1296 * Check for an association response frame to see if QoS 1297 * has been negotiated. We parse just enough to figure 1298 * out if we're supposed to use QoS. The proper solution 1299 * is to pass the frame up so ieee80211_input can do the 1300 * work but that's made hard by how things currently are 1301 * done in the driver. 1302 */ 1303 static void 1304 iwi_checkforqos(struct ieee80211vap *vap, 1305 const struct ieee80211_frame *wh, int len) 1306 { 1307 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 1308 const uint8_t *frm, *efrm, *wme; 1309 struct ieee80211_node *ni; 1310 uint16_t capinfo, status, associd; 1311 1312 /* NB: +8 for capinfo, status, associd, and first ie */ 1313 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) || 1314 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP) 1315 return; 1316 /* 1317 * asresp frame format 1318 * [2] capability information 1319 * [2] status 1320 * [2] association ID 1321 * [tlv] supported rates 1322 * [tlv] extended supported rates 1323 * [tlv] WME 1324 */ 1325 frm = (const uint8_t *)&wh[1]; 1326 efrm = ((const uint8_t *) wh) + len; 1327 1328 capinfo = le16toh(*(const uint16_t *)frm); 1329 frm += 2; 1330 status = le16toh(*(const uint16_t *)frm); 1331 frm += 2; 1332 associd = le16toh(*(const uint16_t *)frm); 1333 frm += 2; 1334 1335 wme = NULL; 1336 while (efrm - frm > 1) { 1337 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); 1338 switch (*frm) { 1339 case IEEE80211_ELEMID_VENDOR: 1340 if (iswmeoui(frm)) 1341 wme = frm; 1342 break; 1343 } 1344 frm += frm[1] + 2; 1345 } 1346 1347 ni = ieee80211_ref_node(vap->iv_bss); 1348 ni->ni_capinfo = capinfo; 1349 ni->ni_associd = associd & 0x3fff; 1350 if (wme != NULL) 1351 ni->ni_flags |= IEEE80211_NODE_QOS; 1352 else 1353 ni->ni_flags &= ~IEEE80211_NODE_QOS; 1354 ieee80211_free_node(ni); 1355 #undef SUBTYPE 1356 } 1357 1358 static void 1359 iwi_notif_link_quality(struct iwi_softc *sc, struct iwi_notif *notif) 1360 { 1361 struct iwi_notif_link_quality *lq; 1362 int len; 1363 1364 len = le16toh(notif->len); 1365 1366 DPRINTFN(5, ("Notification (%u) - len=%d, sizeof=%zu\n", 1367 notif->type, 1368 len, 1369 sizeof(struct iwi_notif_link_quality) 1370 )); 1371 1372 /* enforce length */ 1373 if (len != sizeof(struct iwi_notif_link_quality)) { 1374 DPRINTFN(5, ("Notification: (%u) too short (%d)\n", 1375 notif->type, 1376 len)); 1377 return; 1378 } 1379 1380 lq = (struct iwi_notif_link_quality *)(notif + 1); 1381 memcpy(&sc->sc_linkqual, lq, sizeof(sc->sc_linkqual)); 1382 sc->sc_linkqual_valid = 1; 1383 } 1384 1385 /* 1386 * Task queue callbacks for iwi_notification_intr used to avoid LOR's. 1387 */ 1388 1389 static void 1390 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1391 { 1392 struct ieee80211com *ic = &sc->sc_ic; 1393 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1394 struct iwi_notif_scan_channel *chan; 1395 struct iwi_notif_scan_complete *scan; 1396 struct iwi_notif_authentication *auth; 1397 struct iwi_notif_association *assoc; 1398 struct iwi_notif_beacon_state *beacon; 1399 1400 switch (notif->type) { 1401 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1402 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1403 1404 DPRINTFN(3, ("Scan of channel %u complete (%u)\n", 1405 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan)); 1406 1407 /* Reset the timer, the scan is still going */ 1408 sc->sc_state_timer = 3; 1409 break; 1410 1411 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1412 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1413 1414 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1415 scan->status)); 1416 1417 IWI_STATE_END(sc, IWI_FW_SCANNING); 1418 1419 /* 1420 * Monitor mode works by doing a passive scan to set 1421 * the channel and enable rx. Because we don't want 1422 * to abort a scan lest the firmware crash we scan 1423 * for a short period of time and automatically restart 1424 * the scan when notified the sweep has completed. 1425 */ 1426 if (vap->iv_opmode == IEEE80211_M_MONITOR) { 1427 ieee80211_runtask(ic, &sc->sc_monitortask); 1428 break; 1429 } 1430 1431 if (scan->status == IWI_SCAN_COMPLETED) { 1432 /* NB: don't need to defer, net80211 does it for us */ 1433 ieee80211_scan_next(vap); 1434 } 1435 break; 1436 1437 case IWI_NOTIF_TYPE_AUTHENTICATION: 1438 auth = (struct iwi_notif_authentication *)(notif + 1); 1439 switch (auth->state) { 1440 case IWI_AUTH_SUCCESS: 1441 DPRINTFN(2, ("Authentication succeeeded\n")); 1442 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1); 1443 break; 1444 case IWI_AUTH_FAIL: 1445 /* 1446 * These are delivered as an unsolicited deauth 1447 * (e.g. due to inactivity) or in response to an 1448 * associate request. 1449 */ 1450 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1451 if (vap->iv_state != IEEE80211_S_RUN) { 1452 DPRINTFN(2, ("Authentication failed\n")); 1453 vap->iv_stats.is_rx_auth_fail++; 1454 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1455 } else { 1456 DPRINTFN(2, ("Deauthenticated\n")); 1457 vap->iv_stats.is_rx_deauth++; 1458 } 1459 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1460 break; 1461 case IWI_AUTH_SENT_1: 1462 case IWI_AUTH_RECV_2: 1463 case IWI_AUTH_SEQ1_PASS: 1464 break; 1465 case IWI_AUTH_SEQ1_FAIL: 1466 DPRINTFN(2, ("Initial authentication handshake failed; " 1467 "you probably need shared key\n")); 1468 vap->iv_stats.is_rx_auth_fail++; 1469 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1470 /* XXX retry shared key when in auto */ 1471 break; 1472 default: 1473 device_printf(sc->sc_dev, 1474 "unknown authentication state %u\n", auth->state); 1475 break; 1476 } 1477 break; 1478 1479 case IWI_NOTIF_TYPE_ASSOCIATION: 1480 assoc = (struct iwi_notif_association *)(notif + 1); 1481 switch (assoc->state) { 1482 case IWI_AUTH_SUCCESS: 1483 /* re-association, do nothing */ 1484 break; 1485 case IWI_ASSOC_SUCCESS: 1486 DPRINTFN(2, ("Association succeeded\n")); 1487 sc->flags |= IWI_FLAG_ASSOCIATED; 1488 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1489 iwi_checkforqos(vap, 1490 (const struct ieee80211_frame *)(assoc+1), 1491 le16toh(notif->len) - sizeof(*assoc) - 1); 1492 ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 1493 break; 1494 case IWI_ASSOC_INIT: 1495 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1496 switch (sc->fw_state) { 1497 case IWI_FW_ASSOCIATING: 1498 DPRINTFN(2, ("Association failed\n")); 1499 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1500 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1501 break; 1502 1503 case IWI_FW_DISASSOCIATING: 1504 DPRINTFN(2, ("Dissassociated\n")); 1505 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING); 1506 vap->iv_stats.is_rx_disassoc++; 1507 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1508 break; 1509 } 1510 break; 1511 default: 1512 device_printf(sc->sc_dev, 1513 "unknown association state %u\n", assoc->state); 1514 break; 1515 } 1516 break; 1517 1518 case IWI_NOTIF_TYPE_BEACON: 1519 /* XXX check struct length */ 1520 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1521 1522 DPRINTFN(5, ("Beacon state (%u, %u)\n", 1523 beacon->state, le32toh(beacon->number))); 1524 1525 if (beacon->state == IWI_BEACON_MISS) { 1526 /* 1527 * The firmware notifies us of every beacon miss 1528 * so we need to track the count against the 1529 * configured threshold before notifying the 1530 * 802.11 layer. 1531 * XXX try to roam, drop assoc only on much higher count 1532 */ 1533 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) { 1534 DPRINTF(("Beacon miss: %u >= %u\n", 1535 le32toh(beacon->number), 1536 vap->iv_bmissthreshold)); 1537 vap->iv_stats.is_beacon_miss++; 1538 /* 1539 * It's pointless to notify the 802.11 layer 1540 * as it'll try to send a probe request (which 1541 * we'll discard) and then timeout and drop us 1542 * into scan state. Instead tell the firmware 1543 * to disassociate and then on completion we'll 1544 * kick the state machine to scan. 1545 */ 1546 ieee80211_runtask(ic, &sc->sc_disassoctask); 1547 } 1548 } 1549 break; 1550 1551 case IWI_NOTIF_TYPE_CALIBRATION: 1552 case IWI_NOTIF_TYPE_NOISE: 1553 /* XXX handle? */ 1554 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1555 break; 1556 case IWI_NOTIF_TYPE_LINK_QUALITY: 1557 iwi_notif_link_quality(sc, notif); 1558 break; 1559 1560 default: 1561 DPRINTF(("unknown notification type %u flags 0x%x len %u\n", 1562 notif->type, notif->flags, le16toh(notif->len))); 1563 break; 1564 } 1565 } 1566 1567 static void 1568 iwi_rx_intr(struct iwi_softc *sc) 1569 { 1570 struct iwi_rx_data *data; 1571 struct iwi_hdr *hdr; 1572 uint32_t hw; 1573 1574 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1575 1576 for (; sc->rxq.cur != hw;) { 1577 data = &sc->rxq.data[sc->rxq.cur]; 1578 1579 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1580 BUS_DMASYNC_POSTREAD); 1581 1582 hdr = mtod(data->m, struct iwi_hdr *); 1583 1584 switch (hdr->type) { 1585 case IWI_HDR_TYPE_FRAME: 1586 iwi_frame_intr(sc, data, sc->rxq.cur, 1587 (struct iwi_frame *)(hdr + 1)); 1588 break; 1589 1590 case IWI_HDR_TYPE_NOTIF: 1591 iwi_notification_intr(sc, 1592 (struct iwi_notif *)(hdr + 1)); 1593 break; 1594 1595 default: 1596 device_printf(sc->sc_dev, "unknown hdr type %u\n", 1597 hdr->type); 1598 } 1599 1600 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1601 1602 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; 1603 } 1604 1605 /* tell the firmware what we have processed */ 1606 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; 1607 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1608 } 1609 1610 static void 1611 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1612 { 1613 struct iwi_tx_data *data; 1614 uint32_t hw; 1615 1616 hw = CSR_READ_4(sc, txq->csr_ridx); 1617 1618 while (txq->next != hw) { 1619 data = &txq->data[txq->next]; 1620 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1621 bus_dmamap_sync(txq->data_dmat, data->map, 1622 BUS_DMASYNC_POSTWRITE); 1623 bus_dmamap_unload(txq->data_dmat, data->map); 1624 ieee80211_tx_complete(data->ni, data->m, 0); 1625 data->ni = NULL; 1626 data->m = NULL; 1627 txq->queued--; 1628 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; 1629 } 1630 sc->sc_tx_timer = 0; 1631 if (sc->sc_softled) 1632 iwi_led_event(sc, IWI_LED_TX); 1633 iwi_start(sc); 1634 } 1635 1636 static void 1637 iwi_fatal_error_intr(struct iwi_softc *sc) 1638 { 1639 struct ieee80211com *ic = &sc->sc_ic; 1640 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1641 1642 device_printf(sc->sc_dev, "firmware error\n"); 1643 if (vap != NULL) 1644 ieee80211_cancel_scan(vap); 1645 ieee80211_runtask(ic, &sc->sc_restarttask); 1646 1647 sc->flags &= ~IWI_FLAG_BUSY; 1648 sc->sc_busy_timer = 0; 1649 wakeup(sc); 1650 } 1651 1652 static void 1653 iwi_radio_off_intr(struct iwi_softc *sc) 1654 { 1655 1656 ieee80211_runtask(&sc->sc_ic, &sc->sc_radiofftask); 1657 } 1658 1659 static void 1660 iwi_intr(void *arg) 1661 { 1662 struct iwi_softc *sc = arg; 1663 uint32_t r; 1664 IWI_LOCK_DECL; 1665 1666 IWI_LOCK(sc); 1667 1668 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { 1669 IWI_UNLOCK(sc); 1670 return; 1671 } 1672 1673 /* acknowledge interrupts */ 1674 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1675 1676 if (r & IWI_INTR_FATAL_ERROR) { 1677 iwi_fatal_error_intr(sc); 1678 goto done; 1679 } 1680 1681 if (r & IWI_INTR_FW_INITED) { 1682 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1683 wakeup(sc); 1684 } 1685 1686 if (r & IWI_INTR_RADIO_OFF) 1687 iwi_radio_off_intr(sc); 1688 1689 if (r & IWI_INTR_CMD_DONE) { 1690 sc->flags &= ~IWI_FLAG_BUSY; 1691 sc->sc_busy_timer = 0; 1692 wakeup(sc); 1693 } 1694 1695 if (r & IWI_INTR_TX1_DONE) 1696 iwi_tx_intr(sc, &sc->txq[0]); 1697 1698 if (r & IWI_INTR_TX2_DONE) 1699 iwi_tx_intr(sc, &sc->txq[1]); 1700 1701 if (r & IWI_INTR_TX3_DONE) 1702 iwi_tx_intr(sc, &sc->txq[2]); 1703 1704 if (r & IWI_INTR_TX4_DONE) 1705 iwi_tx_intr(sc, &sc->txq[3]); 1706 1707 if (r & IWI_INTR_RX_DONE) 1708 iwi_rx_intr(sc); 1709 1710 if (r & IWI_INTR_PARITY_ERROR) { 1711 /* XXX rate-limit */ 1712 device_printf(sc->sc_dev, "parity error\n"); 1713 } 1714 done: 1715 IWI_UNLOCK(sc); 1716 } 1717 1718 static int 1719 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len) 1720 { 1721 struct iwi_cmd_desc *desc; 1722 1723 IWI_LOCK_ASSERT(sc); 1724 1725 if (sc->flags & IWI_FLAG_BUSY) { 1726 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", 1727 __func__, type); 1728 return EAGAIN; 1729 } 1730 sc->flags |= IWI_FLAG_BUSY; 1731 sc->sc_busy_timer = 2; 1732 1733 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1734 1735 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1736 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1737 desc->type = type; 1738 desc->len = len; 1739 memcpy(desc->data, data, len); 1740 1741 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, 1742 BUS_DMASYNC_PREWRITE); 1743 1744 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, 1745 type, len)); 1746 1747 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; 1748 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1749 1750 return msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz); 1751 } 1752 1753 static void 1754 iwi_write_ibssnode(struct iwi_softc *sc, 1755 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry) 1756 { 1757 struct iwi_ibssnode node; 1758 1759 /* write node information into NIC memory */ 1760 memset(&node, 0, sizeof node); 1761 IEEE80211_ADDR_COPY(node.bssid, addr); 1762 1763 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry)); 1764 1765 CSR_WRITE_REGION_1(sc, 1766 IWI_CSR_NODE_BASE + entry * sizeof node, 1767 (uint8_t *)&node, sizeof node); 1768 } 1769 1770 static int 1771 iwi_tx_start(struct iwi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1772 int ac) 1773 { 1774 struct ieee80211vap *vap = ni->ni_vap; 1775 struct iwi_node *in = (struct iwi_node *)ni; 1776 const struct ieee80211_frame *wh; 1777 struct ieee80211_key *k; 1778 struct iwi_tx_ring *txq = &sc->txq[ac]; 1779 struct iwi_tx_data *data; 1780 struct iwi_tx_desc *desc; 1781 struct mbuf *mnew; 1782 bus_dma_segment_t segs[IWI_MAX_NSEG]; 1783 int error, nsegs, hdrlen, i; 1784 int ismcast, flags, xflags, staid; 1785 1786 IWI_LOCK_ASSERT(sc); 1787 wh = mtod(m0, const struct ieee80211_frame *); 1788 /* NB: only data frames use this path */ 1789 hdrlen = ieee80211_hdrsize(wh); 1790 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1791 flags = xflags = 0; 1792 1793 if (!ismcast) 1794 flags |= IWI_DATA_FLAG_NEED_ACK; 1795 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE) 1796 flags |= IWI_DATA_FLAG_SHPREAMBLE; 1797 if (IEEE80211_QOS_HAS_SEQ(wh)) { 1798 xflags |= IWI_DATA_XFLAG_QOS; 1799 if (ieee80211_wme_vap_ac_is_noack(vap, ac)) 1800 flags &= ~IWI_DATA_FLAG_NEED_ACK; 1801 } 1802 1803 /* 1804 * This is only used in IBSS mode where the firmware expect an index 1805 * in a h/w table instead of a destination address. 1806 */ 1807 if (vap->iv_opmode == IEEE80211_M_IBSS) { 1808 if (!ismcast) { 1809 if (in->in_station == -1) { 1810 in->in_station = alloc_unr(sc->sc_unr); 1811 if (in->in_station == -1) { 1812 /* h/w table is full */ 1813 if_inc_counter(ni->ni_vap->iv_ifp, 1814 IFCOUNTER_OERRORS, 1); 1815 m_freem(m0); 1816 ieee80211_free_node(ni); 1817 return 0; 1818 } 1819 iwi_write_ibssnode(sc, 1820 ni->ni_macaddr, in->in_station); 1821 } 1822 staid = in->in_station; 1823 } else { 1824 /* 1825 * Multicast addresses have no associated node 1826 * so there will be no station entry. We reserve 1827 * entry 0 for one mcast address and use that. 1828 * If there are many being used this will be 1829 * expensive and we'll need to do a better job 1830 * but for now this handles the broadcast case. 1831 */ 1832 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) { 1833 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1); 1834 iwi_write_ibssnode(sc, sc->sc_mcast, 0); 1835 } 1836 staid = 0; 1837 } 1838 } else 1839 staid = 0; 1840 1841 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1842 k = ieee80211_crypto_encap(ni, m0); 1843 if (k == NULL) { 1844 m_freem(m0); 1845 return ENOBUFS; 1846 } 1847 1848 /* packet header may have moved, reset our local pointer */ 1849 wh = mtod(m0, struct ieee80211_frame *); 1850 } 1851 1852 if (ieee80211_radiotap_active_vap(vap)) { 1853 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1854 1855 tap->wt_flags = 0; 1856 1857 ieee80211_radiotap_tx(vap, m0); 1858 } 1859 1860 data = &txq->data[txq->cur]; 1861 desc = &txq->desc[txq->cur]; 1862 1863 /* save and trim IEEE802.11 header */ 1864 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh); 1865 m_adj(m0, hdrlen); 1866 1867 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, 1868 &nsegs, 0); 1869 if (error != 0 && error != EFBIG) { 1870 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1871 error); 1872 m_freem(m0); 1873 return error; 1874 } 1875 if (error != 0) { 1876 mnew = m_defrag(m0, M_NOWAIT); 1877 if (mnew == NULL) { 1878 device_printf(sc->sc_dev, 1879 "could not defragment mbuf\n"); 1880 m_freem(m0); 1881 return ENOBUFS; 1882 } 1883 m0 = mnew; 1884 1885 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, 1886 m0, segs, &nsegs, 0); 1887 if (error != 0) { 1888 device_printf(sc->sc_dev, 1889 "could not map mbuf (error %d)\n", error); 1890 m_freem(m0); 1891 return error; 1892 } 1893 } 1894 1895 data->m = m0; 1896 data->ni = ni; 1897 1898 desc->hdr.type = IWI_HDR_TYPE_DATA; 1899 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1900 desc->station = staid; 1901 desc->cmd = IWI_DATA_CMD_TX; 1902 desc->len = htole16(m0->m_pkthdr.len); 1903 desc->flags = flags; 1904 desc->xflags = xflags; 1905 1906 #if 0 1907 if (vap->iv_flags & IEEE80211_F_PRIVACY) 1908 desc->wep_txkey = vap->iv_def_txkey; 1909 else 1910 #endif 1911 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1912 1913 desc->nseg = htole32(nsegs); 1914 for (i = 0; i < nsegs; i++) { 1915 desc->seg_addr[i] = htole32(segs[i].ds_addr); 1916 desc->seg_len[i] = htole16(segs[i].ds_len); 1917 } 1918 1919 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1920 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1921 1922 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1923 ac, txq->cur, le16toh(desc->len), nsegs)); 1924 1925 txq->queued++; 1926 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; 1927 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1928 1929 return 0; 1930 } 1931 1932 static int 1933 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1934 const struct ieee80211_bpf_params *params) 1935 { 1936 /* no support; just discard */ 1937 m_freem(m); 1938 ieee80211_free_node(ni); 1939 return 0; 1940 } 1941 1942 static int 1943 iwi_transmit(struct ieee80211com *ic, struct mbuf *m) 1944 { 1945 struct iwi_softc *sc = ic->ic_softc; 1946 int error; 1947 IWI_LOCK_DECL; 1948 1949 IWI_LOCK(sc); 1950 if (!sc->sc_running) { 1951 IWI_UNLOCK(sc); 1952 return (ENXIO); 1953 } 1954 error = mbufq_enqueue(&sc->sc_snd, m); 1955 if (error) { 1956 IWI_UNLOCK(sc); 1957 return (error); 1958 } 1959 iwi_start(sc); 1960 IWI_UNLOCK(sc); 1961 return (0); 1962 } 1963 1964 static void 1965 iwi_start(struct iwi_softc *sc) 1966 { 1967 struct mbuf *m; 1968 struct ieee80211_node *ni; 1969 int ac; 1970 1971 IWI_LOCK_ASSERT(sc); 1972 1973 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1974 ac = M_WME_GETAC(m); 1975 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) { 1976 /* there is no place left in this ring; tail drop */ 1977 /* XXX tail drop */ 1978 mbufq_prepend(&sc->sc_snd, m); 1979 break; 1980 } 1981 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1982 if (iwi_tx_start(sc, m, ni, ac) != 0) { 1983 if_inc_counter(ni->ni_vap->iv_ifp, 1984 IFCOUNTER_OERRORS, 1); 1985 ieee80211_free_node(ni); 1986 break; 1987 } 1988 sc->sc_tx_timer = 5; 1989 } 1990 } 1991 1992 static void 1993 iwi_watchdog(void *arg) 1994 { 1995 struct iwi_softc *sc = arg; 1996 struct ieee80211com *ic = &sc->sc_ic; 1997 1998 IWI_LOCK_ASSERT(sc); 1999 2000 if (sc->sc_tx_timer > 0) { 2001 if (--sc->sc_tx_timer == 0) { 2002 device_printf(sc->sc_dev, "device timeout\n"); 2003 counter_u64_add(ic->ic_oerrors, 1); 2004 ieee80211_runtask(ic, &sc->sc_restarttask); 2005 } 2006 } 2007 if (sc->sc_state_timer > 0) { 2008 if (--sc->sc_state_timer == 0) { 2009 device_printf(sc->sc_dev, 2010 "firmware stuck in state %d, resetting\n", 2011 sc->fw_state); 2012 if (sc->fw_state == IWI_FW_SCANNING) 2013 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps)); 2014 ieee80211_runtask(ic, &sc->sc_restarttask); 2015 sc->sc_state_timer = 3; 2016 } 2017 } 2018 if (sc->sc_busy_timer > 0) { 2019 if (--sc->sc_busy_timer == 0) { 2020 device_printf(sc->sc_dev, 2021 "firmware command timeout, resetting\n"); 2022 ieee80211_runtask(ic, &sc->sc_restarttask); 2023 } 2024 } 2025 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 2026 } 2027 2028 static void 2029 iwi_parent(struct ieee80211com *ic) 2030 { 2031 struct iwi_softc *sc = ic->ic_softc; 2032 int startall = 0; 2033 IWI_LOCK_DECL; 2034 2035 IWI_LOCK(sc); 2036 if (ic->ic_nrunning > 0) { 2037 if (!sc->sc_running) { 2038 iwi_init_locked(sc); 2039 startall = 1; 2040 } 2041 } else if (sc->sc_running) 2042 iwi_stop_locked(sc); 2043 IWI_UNLOCK(sc); 2044 if (startall) 2045 ieee80211_start_all(ic); 2046 } 2047 2048 static int 2049 iwi_ioctl(struct ieee80211com *ic, u_long cmd, void *data) 2050 { 2051 struct ifreq *ifr = data; 2052 struct iwi_softc *sc = ic->ic_softc; 2053 int error; 2054 IWI_LOCK_DECL; 2055 2056 IWI_LOCK(sc); 2057 switch (cmd) { 2058 case SIOCGIWISTATS: 2059 /* XXX validate permissions/memory/etc? */ 2060 error = copyout(&sc->sc_linkqual, ifr_data_get_ptr(ifr), 2061 sizeof(struct iwi_notif_link_quality)); 2062 break; 2063 case SIOCZIWISTATS: 2064 memset(&sc->sc_linkqual, 0, 2065 sizeof(struct iwi_notif_link_quality)); 2066 error = 0; 2067 break; 2068 default: 2069 error = ENOTTY; 2070 break; 2071 } 2072 IWI_UNLOCK(sc); 2073 2074 return (error); 2075 } 2076 2077 static void 2078 iwi_stop_master(struct iwi_softc *sc) 2079 { 2080 uint32_t tmp; 2081 int ntries; 2082 2083 /* disable interrupts */ 2084 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 2085 2086 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 2087 for (ntries = 0; ntries < 5; ntries++) { 2088 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2089 break; 2090 DELAY(10); 2091 } 2092 if (ntries == 5) 2093 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2094 2095 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2096 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); 2097 2098 sc->flags &= ~IWI_FLAG_FW_INITED; 2099 } 2100 2101 static int 2102 iwi_reset(struct iwi_softc *sc) 2103 { 2104 uint32_t tmp; 2105 int i, ntries; 2106 2107 iwi_stop_master(sc); 2108 2109 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2110 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2111 2112 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2113 2114 /* wait for clock stabilization */ 2115 for (ntries = 0; ntries < 1000; ntries++) { 2116 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2117 break; 2118 DELAY(200); 2119 } 2120 if (ntries == 1000) { 2121 device_printf(sc->sc_dev, 2122 "timeout waiting for clock stabilization\n"); 2123 return EIO; 2124 } 2125 2126 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2127 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); 2128 2129 DELAY(10); 2130 2131 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2132 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2133 2134 /* clear NIC memory */ 2135 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2136 for (i = 0; i < 0xc000; i++) 2137 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2138 2139 return 0; 2140 } 2141 2142 static const struct iwi_firmware_ohdr * 2143 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw) 2144 { 2145 const struct firmware *fp = fw->fp; 2146 const struct iwi_firmware_ohdr *hdr; 2147 2148 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) { 2149 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name); 2150 return NULL; 2151 } 2152 hdr = (const struct iwi_firmware_ohdr *)fp->data; 2153 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2154 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2155 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n", 2156 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2157 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR, 2158 IWI_FW_REQ_MINOR); 2159 return NULL; 2160 } 2161 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr); 2162 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr); 2163 fw->name = fp->name; 2164 return hdr; 2165 } 2166 2167 static const struct iwi_firmware_ohdr * 2168 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw) 2169 { 2170 const struct iwi_firmware_ohdr *hdr; 2171 2172 hdr = iwi_setup_ofw(sc, fw); 2173 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) { 2174 device_printf(sc->sc_dev, "%s is not a ucode image\n", 2175 fw->name); 2176 hdr = NULL; 2177 } 2178 return hdr; 2179 } 2180 2181 static void 2182 iwi_getfw(struct iwi_fw *fw, const char *fwname, 2183 struct iwi_fw *uc, const char *ucname) 2184 { 2185 if (fw->fp == NULL) 2186 fw->fp = firmware_get(fwname); 2187 /* NB: pre-3.0 ucode is packaged separately */ 2188 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300) 2189 uc->fp = firmware_get(ucname); 2190 } 2191 2192 /* 2193 * Get the required firmware images if not already loaded. 2194 * Note that we hold firmware images so long as the device 2195 * is marked up in case we need to reload them on device init. 2196 * This is necessary because we re-init the device sometimes 2197 * from a context where we cannot read from the filesystem 2198 * (e.g. from the taskqueue thread when rfkill is re-enabled). 2199 * XXX return 0 on success, 1 on error. 2200 * 2201 * NB: the order of get'ing and put'ing images here is 2202 * intentional to support handling firmware images bundled 2203 * by operating mode and/or all together in one file with 2204 * the boot firmware as "master". 2205 */ 2206 static int 2207 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode) 2208 { 2209 const struct iwi_firmware_hdr *hdr; 2210 const struct firmware *fp; 2211 2212 /* invalidate cached firmware on mode change */ 2213 if (sc->fw_mode != opmode) 2214 iwi_put_firmware(sc); 2215 2216 switch (opmode) { 2217 case IEEE80211_M_STA: 2218 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss"); 2219 break; 2220 case IEEE80211_M_IBSS: 2221 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss"); 2222 break; 2223 case IEEE80211_M_MONITOR: 2224 iwi_getfw(&sc->fw_fw, "iwi_monitor", 2225 &sc->fw_uc, "iwi_ucode_monitor"); 2226 break; 2227 default: 2228 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); 2229 return EINVAL; 2230 } 2231 fp = sc->fw_fw.fp; 2232 if (fp == NULL) { 2233 device_printf(sc->sc_dev, "could not load firmware\n"); 2234 goto bad; 2235 } 2236 if (fp->version < 300) { 2237 /* 2238 * Firmware prior to 3.0 was packaged as separate 2239 * boot, firmware, and ucode images. Verify the 2240 * ucode image was read in, retrieve the boot image 2241 * if needed, and check version stamps for consistency. 2242 * The version stamps in the data are also checked 2243 * above; this is a bit paranoid but is a cheap 2244 * safeguard against mis-packaging. 2245 */ 2246 if (sc->fw_uc.fp == NULL) { 2247 device_printf(sc->sc_dev, "could not load ucode\n"); 2248 goto bad; 2249 } 2250 if (sc->fw_boot.fp == NULL) { 2251 sc->fw_boot.fp = firmware_get("iwi_boot"); 2252 if (sc->fw_boot.fp == NULL) { 2253 device_printf(sc->sc_dev, 2254 "could not load boot firmware\n"); 2255 goto bad; 2256 } 2257 } 2258 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version || 2259 sc->fw_boot.fp->version != sc->fw_uc.fp->version) { 2260 device_printf(sc->sc_dev, 2261 "firmware version mismatch: " 2262 "'%s' is %d, '%s' is %d, '%s' is %d\n", 2263 sc->fw_boot.fp->name, sc->fw_boot.fp->version, 2264 sc->fw_uc.fp->name, sc->fw_uc.fp->version, 2265 sc->fw_fw.fp->name, sc->fw_fw.fp->version 2266 ); 2267 goto bad; 2268 } 2269 /* 2270 * Check and setup each image. 2271 */ 2272 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL || 2273 iwi_setup_ofw(sc, &sc->fw_boot) == NULL || 2274 iwi_setup_ofw(sc, &sc->fw_fw) == NULL) 2275 goto bad; 2276 } else { 2277 /* 2278 * Check and setup combined image. 2279 */ 2280 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) { 2281 device_printf(sc->sc_dev, "image '%s' too small\n", 2282 fp->name); 2283 goto bad; 2284 } 2285 hdr = (const struct iwi_firmware_hdr *)fp->data; 2286 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize) 2287 + le32toh(hdr->fsize)) { 2288 device_printf(sc->sc_dev, "image '%s' too small (2)\n", 2289 fp->name); 2290 goto bad; 2291 } 2292 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr); 2293 sc->fw_boot.size = le32toh(hdr->bsize); 2294 sc->fw_boot.name = fp->name; 2295 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size; 2296 sc->fw_uc.size = le32toh(hdr->usize); 2297 sc->fw_uc.name = fp->name; 2298 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size; 2299 sc->fw_fw.size = le32toh(hdr->fsize); 2300 sc->fw_fw.name = fp->name; 2301 } 2302 #if 0 2303 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n", 2304 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size); 2305 #endif 2306 2307 sc->fw_mode = opmode; 2308 return 0; 2309 bad: 2310 iwi_put_firmware(sc); 2311 return 1; 2312 } 2313 2314 static void 2315 iwi_put_fw(struct iwi_fw *fw) 2316 { 2317 if (fw->fp != NULL) { 2318 firmware_put(fw->fp, FIRMWARE_UNLOAD); 2319 fw->fp = NULL; 2320 } 2321 fw->data = NULL; 2322 fw->size = 0; 2323 fw->name = NULL; 2324 } 2325 2326 /* 2327 * Release any cached firmware images. 2328 */ 2329 static void 2330 iwi_put_firmware(struct iwi_softc *sc) 2331 { 2332 iwi_put_fw(&sc->fw_uc); 2333 iwi_put_fw(&sc->fw_fw); 2334 iwi_put_fw(&sc->fw_boot); 2335 } 2336 2337 static int 2338 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw) 2339 { 2340 uint32_t tmp; 2341 const uint16_t *w; 2342 const char *uc = fw->data; 2343 size_t size = fw->size; 2344 int i, ntries, error; 2345 2346 IWI_LOCK_ASSERT(sc); 2347 error = 0; 2348 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2349 IWI_RST_STOP_MASTER); 2350 for (ntries = 0; ntries < 5; ntries++) { 2351 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2352 break; 2353 DELAY(10); 2354 } 2355 if (ntries == 5) { 2356 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2357 error = EIO; 2358 goto fail; 2359 } 2360 2361 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2362 DELAY(5000); 2363 2364 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2365 tmp &= ~IWI_RST_PRINCETON_RESET; 2366 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2367 2368 DELAY(5000); 2369 MEM_WRITE_4(sc, 0x3000e0, 0); 2370 DELAY(1000); 2371 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1); 2372 DELAY(1000); 2373 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0); 2374 DELAY(1000); 2375 MEM_WRITE_1(sc, 0x200000, 0x00); 2376 MEM_WRITE_1(sc, 0x200000, 0x40); 2377 DELAY(1000); 2378 2379 /* write microcode into adapter memory */ 2380 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2) 2381 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2382 2383 MEM_WRITE_1(sc, 0x200000, 0x00); 2384 MEM_WRITE_1(sc, 0x200000, 0x80); 2385 2386 /* wait until we get an answer */ 2387 for (ntries = 0; ntries < 100; ntries++) { 2388 if (MEM_READ_1(sc, 0x200000) & 1) 2389 break; 2390 DELAY(100); 2391 } 2392 if (ntries == 100) { 2393 device_printf(sc->sc_dev, 2394 "timeout waiting for ucode to initialize\n"); 2395 error = EIO; 2396 goto fail; 2397 } 2398 2399 /* read the answer or the firmware will not initialize properly */ 2400 for (i = 0; i < 7; i++) 2401 MEM_READ_4(sc, 0x200004); 2402 2403 MEM_WRITE_1(sc, 0x200000, 0x00); 2404 2405 fail: 2406 return error; 2407 } 2408 2409 /* macro to handle unaligned little endian data in firmware image */ 2410 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2411 2412 static int 2413 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw) 2414 { 2415 u_char *p, *end; 2416 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; 2417 int ntries, error; 2418 2419 IWI_LOCK_ASSERT(sc); 2420 2421 /* copy firmware image to DMA memory */ 2422 memcpy(sc->fw_virtaddr, fw->data, fw->size); 2423 2424 /* make sure the adapter will get up-to-date values */ 2425 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE); 2426 2427 /* tell the adapter where the command blocks are stored */ 2428 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2429 2430 /* 2431 * Store command blocks into adapter's internal memory using register 2432 * indirections. The adapter will read the firmware image through DMA 2433 * using information stored in command blocks. 2434 */ 2435 src = sc->fw_physaddr; 2436 p = sc->fw_virtaddr; 2437 end = p + fw->size; 2438 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2439 2440 while (p < end) { 2441 dst = GETLE32(p); p += 4; src += 4; 2442 len = GETLE32(p); p += 4; src += 4; 2443 p += len; 2444 2445 while (len > 0) { 2446 mlen = min(len, IWI_CB_MAXDATALEN); 2447 2448 ctl = IWI_CB_DEFAULT_CTL | mlen; 2449 sum = ctl ^ src ^ dst; 2450 2451 /* write a command block */ 2452 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2453 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); 2454 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); 2455 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2456 2457 src += mlen; 2458 dst += mlen; 2459 len -= mlen; 2460 } 2461 } 2462 2463 /* write a fictive final command block (sentinel) */ 2464 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2465 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2466 2467 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2468 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); 2469 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2470 2471 /* tell the adapter to start processing command blocks */ 2472 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2473 2474 /* wait until the adapter reaches the sentinel */ 2475 for (ntries = 0; ntries < 400; ntries++) { 2476 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2477 break; 2478 DELAY(100); 2479 } 2480 /* sync dma, just in case */ 2481 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE); 2482 if (ntries == 400) { 2483 device_printf(sc->sc_dev, 2484 "timeout processing command blocks for %s firmware\n", 2485 fw->name); 2486 return EIO; 2487 } 2488 2489 /* we're done with command blocks processing */ 2490 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2491 2492 /* allow interrupts so we know when the firmware is ready */ 2493 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2494 2495 /* tell the adapter to initialize the firmware */ 2496 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2497 2498 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2499 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); 2500 2501 /* wait at most one second for firmware initialization to complete */ 2502 if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) { 2503 device_printf(sc->sc_dev, "timeout waiting for %s firmware " 2504 "initialization to complete\n", fw->name); 2505 } 2506 2507 return error; 2508 } 2509 2510 static int 2511 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap) 2512 { 2513 uint32_t data; 2514 2515 if (vap->iv_flags & IEEE80211_F_PMGTON) { 2516 /* XXX set more fine-grained operation */ 2517 data = htole32(IWI_POWER_MODE_MAX); 2518 } else 2519 data = htole32(IWI_POWER_MODE_CAM); 2520 2521 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2522 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data); 2523 } 2524 2525 static int 2526 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap) 2527 { 2528 struct iwi_wep_key wepkey; 2529 struct ieee80211_key *wk; 2530 int error, i; 2531 2532 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2533 wk = &vap->iv_nw_keys[i]; 2534 2535 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2536 wepkey.idx = i; 2537 wepkey.len = wk->wk_keylen; 2538 memset(wepkey.key, 0, sizeof wepkey.key); 2539 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2540 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2541 wepkey.len)); 2542 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2543 sizeof wepkey); 2544 if (error != 0) 2545 return error; 2546 } 2547 return 0; 2548 } 2549 2550 static int 2551 iwi_set_rateset(struct iwi_softc *sc, const struct ieee80211_rateset *net_rs, 2552 int mode, int type) 2553 { 2554 struct iwi_rateset rs; 2555 2556 memset(&rs, 0, sizeof(rs)); 2557 rs.mode = mode; 2558 rs.type = type; 2559 rs.nrates = net_rs->rs_nrates; 2560 if (rs.nrates > nitems(rs.rates)) { 2561 DPRINTF(("Truncating negotiated rate set from %u\n", 2562 rs.nrates)); 2563 rs.nrates = nitems(rs.rates); 2564 } 2565 memcpy(rs.rates, net_rs->rs_rates, rs.nrates); 2566 DPRINTF(("Setting .11%c%s %s rates (%u)\n", 2567 mode == IWI_MODE_11A ? 'a' : 'b', 2568 mode == IWI_MODE_11G ? "g" : "", 2569 type == IWI_RATESET_TYPE_SUPPORTED ? "supported" : "negotiated", 2570 rs.nrates)); 2571 2572 return (iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof(rs))); 2573 } 2574 2575 static int 2576 iwi_config(struct iwi_softc *sc) 2577 { 2578 struct ieee80211com *ic = &sc->sc_ic; 2579 struct iwi_configuration config; 2580 struct iwi_txpower power; 2581 uint32_t data; 2582 int error, i; 2583 2584 IWI_LOCK_ASSERT(sc); 2585 2586 DPRINTF(("Setting MAC address to %6D\n", ic->ic_macaddr, ":")); 2587 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_macaddr, 2588 IEEE80211_ADDR_LEN); 2589 if (error != 0) 2590 return error; 2591 2592 memset(&config, 0, sizeof config); 2593 config.bluetooth_coexistence = sc->bluetooth; 2594 config.silence_threshold = 0x1e; 2595 config.antenna = sc->antenna; 2596 config.multicast_enabled = 1; 2597 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2598 config.disable_unicast_decryption = 1; 2599 config.disable_multicast_decryption = 1; 2600 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2601 config.allow_invalid_frames = 1; 2602 config.allow_beacon_and_probe_resp = 1; 2603 config.allow_mgt = 1; 2604 } 2605 DPRINTF(("Configuring adapter\n")); 2606 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2607 if (error != 0) 2608 return error; 2609 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2610 power.mode = IWI_MODE_11B; 2611 power.nchan = 11; 2612 for (i = 0; i < 11; i++) { 2613 power.chan[i].chan = i + 1; 2614 power.chan[i].power = IWI_TXPOWER_MAX; 2615 } 2616 DPRINTF(("Setting .11b channels tx power\n")); 2617 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2618 if (error != 0) 2619 return error; 2620 2621 power.mode = IWI_MODE_11G; 2622 DPRINTF(("Setting .11g channels tx power\n")); 2623 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2624 if (error != 0) 2625 return error; 2626 } 2627 2628 error = iwi_set_rateset(sc, &ic->ic_sup_rates[IEEE80211_MODE_11G], 2629 IWI_MODE_11G, IWI_RATESET_TYPE_SUPPORTED); 2630 if (error != 0) 2631 return error; 2632 2633 error = iwi_set_rateset(sc, &ic->ic_sup_rates[IEEE80211_MODE_11A], 2634 IWI_MODE_11A, IWI_RATESET_TYPE_SUPPORTED); 2635 if (error != 0) 2636 return error; 2637 2638 data = htole32(arc4random()); 2639 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2640 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data); 2641 if (error != 0) 2642 return error; 2643 2644 /* enable adapter */ 2645 DPRINTF(("Enabling adapter\n")); 2646 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0); 2647 } 2648 2649 static __inline void 2650 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type) 2651 { 2652 uint8_t *st = &scan->scan_type[ix / 2]; 2653 if (ix % 2) 2654 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0); 2655 else 2656 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4); 2657 } 2658 2659 static int 2660 scan_type(const struct ieee80211_scan_state *ss, 2661 const struct ieee80211_channel *chan) 2662 { 2663 /* We can only set one essid for a directed scan */ 2664 if (ss->ss_nssid != 0) 2665 return IWI_SCAN_TYPE_BDIRECTED; 2666 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) && 2667 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) 2668 return IWI_SCAN_TYPE_BROADCAST; 2669 return IWI_SCAN_TYPE_PASSIVE; 2670 } 2671 2672 static __inline int 2673 scan_band(const struct ieee80211_channel *c) 2674 { 2675 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ; 2676 } 2677 2678 static void 2679 iwi_monitor_scan(void *arg, int npending) 2680 { 2681 struct iwi_softc *sc = arg; 2682 IWI_LOCK_DECL; 2683 2684 IWI_LOCK(sc); 2685 (void) iwi_scanchan(sc, 2000, 0); 2686 IWI_UNLOCK(sc); 2687 } 2688 2689 /* 2690 * Start a scan on the current channel or all channels. 2691 */ 2692 static int 2693 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan) 2694 { 2695 struct ieee80211com *ic = &sc->sc_ic; 2696 struct ieee80211_channel *chan; 2697 struct ieee80211_scan_state *ss; 2698 struct iwi_scan_ext scan; 2699 int error = 0; 2700 2701 IWI_LOCK_ASSERT(sc); 2702 if (sc->fw_state == IWI_FW_SCANNING) { 2703 /* 2704 * This should not happen as we only trigger scan_next after 2705 * completion 2706 */ 2707 DPRINTF(("%s: called too early - still scanning\n", __func__)); 2708 return (EBUSY); 2709 } 2710 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING); 2711 2712 ss = ic->ic_scan; 2713 2714 memset(&scan, 0, sizeof scan); 2715 scan.full_scan_index = htole32(++sc->sc_scangen); 2716 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell); 2717 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 2718 /* 2719 * Use very short dwell times for when we send probe request 2720 * frames. Without this bg scans hang. Ideally this should 2721 * be handled with early-termination as done by net80211 but 2722 * that's not feasible (aborting a scan is problematic). 2723 */ 2724 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30); 2725 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30); 2726 } else { 2727 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell); 2728 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell); 2729 } 2730 2731 /* We can only set one essid for a directed scan */ 2732 if (ss->ss_nssid != 0) { 2733 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid, 2734 ss->ss_ssid[0].len); 2735 if (error) 2736 return (error); 2737 } 2738 2739 if (allchan) { 2740 int i, next, band, b, bstart; 2741 /* 2742 * Convert scan list to run-length encoded channel list 2743 * the firmware requires (preserving the order setup by 2744 * net80211). The first entry in each run specifies the 2745 * band and the count of items in the run. 2746 */ 2747 next = 0; /* next open slot */ 2748 bstart = 0; /* NB: not needed, silence compiler */ 2749 band = -1; /* NB: impossible value */ 2750 KASSERT(ss->ss_last > 0, ("no channels")); 2751 for (i = 0; i < ss->ss_last; i++) { 2752 chan = ss->ss_chans[i]; 2753 b = scan_band(chan); 2754 if (b != band) { 2755 if (band != -1) 2756 scan.channels[bstart] = 2757 (next - bstart) | band; 2758 /* NB: this allocates a slot for the run-len */ 2759 band = b, bstart = next++; 2760 } 2761 if (next >= IWI_SCAN_CHANNELS) { 2762 DPRINTF(("truncating scan list\n")); 2763 break; 2764 } 2765 scan.channels[next] = ieee80211_chan2ieee(ic, chan); 2766 set_scan_type(&scan, next, scan_type(ss, chan)); 2767 next++; 2768 } 2769 scan.channels[bstart] = (next - bstart) | band; 2770 } else { 2771 /* Scan the current channel only */ 2772 chan = ic->ic_curchan; 2773 scan.channels[0] = 1 | scan_band(chan); 2774 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2775 set_scan_type(&scan, 1, scan_type(ss, chan)); 2776 } 2777 #ifdef IWI_DEBUG 2778 if (iwi_debug > 0) { 2779 static const char *scantype[8] = 2780 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" }; 2781 int i; 2782 printf("Scan request: index %u dwell %d/%d/%d\n" 2783 , le32toh(scan.full_scan_index) 2784 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE]) 2785 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST]) 2786 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED]) 2787 ); 2788 i = 0; 2789 do { 2790 int run = scan.channels[i]; 2791 if (run == 0) 2792 break; 2793 printf("Scan %d %s channels:", run & 0x3f, 2794 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz"); 2795 for (run &= 0x3f, i++; run > 0; run--, i++) { 2796 uint8_t type = scan.scan_type[i/2]; 2797 printf(" %u/%s", scan.channels[i], 2798 scantype[(i & 1 ? type : type>>4) & 7]); 2799 } 2800 printf("\n"); 2801 } while (i < IWI_SCAN_CHANNELS); 2802 } 2803 #endif 2804 2805 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan)); 2806 } 2807 2808 static int 2809 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm) 2810 { 2811 struct iwi_sensitivity sens; 2812 2813 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm)); 2814 2815 memset(&sens, 0, sizeof sens); 2816 sens.rssi = htole16(rssi_dbm); 2817 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens); 2818 } 2819 2820 static int 2821 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap) 2822 { 2823 struct ieee80211com *ic = vap->iv_ic; 2824 struct ifnet *ifp = vap->iv_ifp; 2825 struct ieee80211_node *ni; 2826 struct iwi_configuration config; 2827 struct iwi_associate *assoc = &sc->assoc; 2828 uint16_t capinfo; 2829 uint32_t data; 2830 int error, mode; 2831 2832 IWI_LOCK_ASSERT(sc); 2833 2834 if (sc->flags & IWI_FLAG_ASSOCIATED) { 2835 DPRINTF(("Already associated\n")); 2836 return (-1); 2837 } 2838 2839 ni = ieee80211_ref_node(vap->iv_bss); 2840 2841 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING); 2842 error = 0; 2843 mode = 0; 2844 2845 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) 2846 mode = IWI_MODE_11A; 2847 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan)) 2848 mode = IWI_MODE_11G; 2849 if (IEEE80211_IS_CHAN_B(ic->ic_curchan)) 2850 mode = IWI_MODE_11B; 2851 2852 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2853 memset(&config, 0, sizeof config); 2854 config.bluetooth_coexistence = sc->bluetooth; 2855 config.antenna = sc->antenna; 2856 config.multicast_enabled = 1; 2857 if (mode == IWI_MODE_11G) 2858 config.use_protection = 1; 2859 config.answer_pbreq = 2860 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2861 config.disable_unicast_decryption = 1; 2862 config.disable_multicast_decryption = 1; 2863 DPRINTF(("Configuring adapter\n")); 2864 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2865 if (error != 0) 2866 goto done; 2867 } 2868 2869 #ifdef IWI_DEBUG 2870 if (iwi_debug > 0) { 2871 printf("Setting ESSID to "); 2872 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2873 printf("\n"); 2874 } 2875 #endif 2876 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); 2877 if (error != 0) 2878 goto done; 2879 2880 error = iwi_setpowermode(sc, vap); 2881 if (error != 0) 2882 goto done; 2883 2884 data = htole32(vap->iv_rtsthreshold); 2885 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2886 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2887 if (error != 0) 2888 goto done; 2889 2890 data = htole32(vap->iv_fragthreshold); 2891 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2892 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2893 if (error != 0) 2894 goto done; 2895 2896 /* the rate set has already been "negotiated" */ 2897 error = iwi_set_rateset(sc, &ni->ni_rates, mode, 2898 IWI_RATESET_TYPE_NEGOTIATED); 2899 if (error != 0) 2900 goto done; 2901 2902 memset(assoc, 0, sizeof *assoc); 2903 2904 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) { 2905 /* NB: don't treat WME setup as failure */ 2906 if (iwi_wme_setparams(sc) == 0 && iwi_wme_setie(sc) == 0) 2907 assoc->policy |= htole16(IWI_POLICY_WME); 2908 /* XXX complain on failure? */ 2909 } 2910 2911 if (vap->iv_appie_wpa != NULL) { 2912 struct ieee80211_appie *ie = vap->iv_appie_wpa; 2913 2914 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len)); 2915 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len); 2916 if (error != 0) 2917 goto done; 2918 } 2919 2920 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni)); 2921 if (error != 0) 2922 goto done; 2923 2924 assoc->mode = mode; 2925 assoc->chan = ic->ic_curchan->ic_ieee; 2926 /* 2927 * NB: do not arrange for shared key auth w/o privacy 2928 * (i.e. a wep key); it causes a firmware error. 2929 */ 2930 if ((vap->iv_flags & IEEE80211_F_PRIVACY) && 2931 ni->ni_authmode == IEEE80211_AUTH_SHARED) { 2932 assoc->auth = IWI_AUTH_SHARED; 2933 /* 2934 * It's possible to have privacy marked but no default 2935 * key setup. This typically is due to a user app bug 2936 * but if we blindly grab the key the firmware will 2937 * barf so avoid it for now. 2938 */ 2939 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) 2940 assoc->auth |= vap->iv_def_txkey << 4; 2941 2942 error = iwi_setwepkeys(sc, vap); 2943 if (error != 0) 2944 goto done; 2945 } 2946 if (vap->iv_flags & IEEE80211_F_WPA) 2947 assoc->policy |= htole16(IWI_POLICY_WPA); 2948 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2949 assoc->type = IWI_HC_IBSS_START; 2950 else 2951 assoc->type = IWI_HC_ASSOC; 2952 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8); 2953 2954 if (vap->iv_opmode == IEEE80211_M_IBSS) 2955 capinfo = IEEE80211_CAPINFO_IBSS; 2956 else 2957 capinfo = IEEE80211_CAPINFO_ESS; 2958 if (vap->iv_flags & IEEE80211_F_PRIVACY) 2959 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2960 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2961 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 2962 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2963 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) 2964 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2965 assoc->capinfo = htole16(capinfo); 2966 2967 assoc->lintval = htole16(ic->ic_lintval); 2968 assoc->intval = htole16(ni->ni_intval); 2969 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid); 2970 if (vap->iv_opmode == IEEE80211_M_IBSS) 2971 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr); 2972 else 2973 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid); 2974 2975 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x " 2976 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2977 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", 2978 assoc->bssid, ":", assoc->dst, ":", 2979 assoc->chan, le16toh(assoc->policy), assoc->auth, 2980 le16toh(assoc->capinfo), le16toh(assoc->lintval), 2981 le16toh(assoc->intval))); 2982 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 2983 done: 2984 ieee80211_free_node(ni); 2985 if (error) 2986 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 2987 2988 return (error); 2989 } 2990 2991 static void 2992 iwi_disassoc(void *arg, int pending) 2993 { 2994 struct iwi_softc *sc = arg; 2995 IWI_LOCK_DECL; 2996 2997 IWI_LOCK(sc); 2998 iwi_disassociate(sc, 0); 2999 IWI_UNLOCK(sc); 3000 } 3001 3002 static int 3003 iwi_disassociate(struct iwi_softc *sc, int quiet) 3004 { 3005 struct iwi_associate *assoc = &sc->assoc; 3006 3007 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) { 3008 DPRINTF(("Not associated\n")); 3009 return (-1); 3010 } 3011 3012 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING); 3013 3014 if (quiet) 3015 assoc->type = IWI_HC_DISASSOC_QUIET; 3016 else 3017 assoc->type = IWI_HC_DISASSOC; 3018 3019 DPRINTF(("Trying to disassociate from %6D channel %u\n", 3020 assoc->bssid, ":", assoc->chan)); 3021 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 3022 } 3023 3024 /* 3025 * release dma resources for the firmware 3026 */ 3027 static void 3028 iwi_release_fw_dma(struct iwi_softc *sc) 3029 { 3030 if (sc->fw_flags & IWI_FW_HAVE_PHY) 3031 bus_dmamap_unload(sc->fw_dmat, sc->fw_map); 3032 if (sc->fw_flags & IWI_FW_HAVE_MAP) 3033 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map); 3034 if (sc->fw_flags & IWI_FW_HAVE_DMAT) 3035 bus_dma_tag_destroy(sc->fw_dmat); 3036 3037 sc->fw_flags = 0; 3038 sc->fw_dma_size = 0; 3039 sc->fw_dmat = NULL; 3040 sc->fw_map = NULL; 3041 sc->fw_physaddr = 0; 3042 sc->fw_virtaddr = NULL; 3043 } 3044 3045 /* 3046 * allocate the dma descriptor for the firmware. 3047 * Return 0 on success, 1 on error. 3048 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING. 3049 */ 3050 static int 3051 iwi_init_fw_dma(struct iwi_softc *sc, int size) 3052 { 3053 if (sc->fw_dma_size >= size) 3054 return 0; 3055 if (bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 3056 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 3057 size, 1, size, 0, NULL, NULL, &sc->fw_dmat) != 0) { 3058 device_printf(sc->sc_dev, 3059 "could not create firmware DMA tag\n"); 3060 goto error; 3061 } 3062 sc->fw_flags |= IWI_FW_HAVE_DMAT; 3063 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0, 3064 &sc->fw_map) != 0) { 3065 device_printf(sc->sc_dev, 3066 "could not allocate firmware DMA memory\n"); 3067 goto error; 3068 } 3069 sc->fw_flags |= IWI_FW_HAVE_MAP; 3070 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr, 3071 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) { 3072 device_printf(sc->sc_dev, "could not load firmware DMA map\n"); 3073 goto error; 3074 } 3075 sc->fw_flags |= IWI_FW_HAVE_PHY; 3076 sc->fw_dma_size = size; 3077 return 0; 3078 3079 error: 3080 iwi_release_fw_dma(sc); 3081 return 1; 3082 } 3083 3084 static void 3085 iwi_init_locked(struct iwi_softc *sc) 3086 { 3087 struct iwi_rx_data *data; 3088 int i; 3089 3090 IWI_LOCK_ASSERT(sc); 3091 3092 if (sc->fw_state == IWI_FW_LOADING) { 3093 device_printf(sc->sc_dev, "%s: already loading\n", __func__); 3094 return; /* XXX: condvar? */ 3095 } 3096 3097 iwi_stop_locked(sc); 3098 3099 IWI_STATE_BEGIN(sc, IWI_FW_LOADING); 3100 3101 if (iwi_reset(sc) != 0) { 3102 device_printf(sc->sc_dev, "could not reset adapter\n"); 3103 goto fail; 3104 } 3105 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) { 3106 device_printf(sc->sc_dev, 3107 "could not load boot firmware %s\n", sc->fw_boot.name); 3108 goto fail; 3109 } 3110 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) { 3111 device_printf(sc->sc_dev, 3112 "could not load microcode %s\n", sc->fw_uc.name); 3113 goto fail; 3114 } 3115 3116 iwi_stop_master(sc); 3117 3118 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr); 3119 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 3120 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 3121 3122 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr); 3123 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 3124 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 3125 3126 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr); 3127 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 3128 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 3129 3130 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr); 3131 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 3132 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 3133 3134 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr); 3135 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 3136 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 3137 3138 for (i = 0; i < sc->rxq.count; i++) { 3139 data = &sc->rxq.data[i]; 3140 CSR_WRITE_4(sc, data->reg, data->physaddr); 3141 } 3142 3143 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1); 3144 3145 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) { 3146 device_printf(sc->sc_dev, 3147 "could not load main firmware %s\n", sc->fw_fw.name); 3148 goto fail; 3149 } 3150 sc->flags |= IWI_FLAG_FW_INITED; 3151 3152 IWI_STATE_END(sc, IWI_FW_LOADING); 3153 3154 if (iwi_config(sc) != 0) { 3155 device_printf(sc->sc_dev, "unable to enable adapter\n"); 3156 goto fail2; 3157 } 3158 3159 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 3160 sc->sc_running = 1; 3161 return; 3162 fail: 3163 IWI_STATE_END(sc, IWI_FW_LOADING); 3164 fail2: 3165 iwi_stop_locked(sc); 3166 } 3167 3168 static void 3169 iwi_init(void *priv) 3170 { 3171 struct iwi_softc *sc = priv; 3172 struct ieee80211com *ic = &sc->sc_ic; 3173 IWI_LOCK_DECL; 3174 3175 IWI_LOCK(sc); 3176 iwi_init_locked(sc); 3177 IWI_UNLOCK(sc); 3178 3179 if (sc->sc_running) 3180 ieee80211_start_all(ic); 3181 } 3182 3183 static void 3184 iwi_stop_locked(void *priv) 3185 { 3186 struct iwi_softc *sc = priv; 3187 3188 IWI_LOCK_ASSERT(sc); 3189 3190 sc->sc_running = 0; 3191 3192 if (sc->sc_softled) { 3193 callout_stop(&sc->sc_ledtimer); 3194 sc->sc_blinking = 0; 3195 } 3196 callout_stop(&sc->sc_wdtimer); 3197 callout_stop(&sc->sc_rftimer); 3198 3199 iwi_stop_master(sc); 3200 3201 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET); 3202 3203 /* reset rings */ 3204 iwi_reset_cmd_ring(sc, &sc->cmdq); 3205 iwi_reset_tx_ring(sc, &sc->txq[0]); 3206 iwi_reset_tx_ring(sc, &sc->txq[1]); 3207 iwi_reset_tx_ring(sc, &sc->txq[2]); 3208 iwi_reset_tx_ring(sc, &sc->txq[3]); 3209 iwi_reset_rx_ring(sc, &sc->rxq); 3210 3211 sc->sc_tx_timer = 0; 3212 sc->sc_state_timer = 0; 3213 sc->sc_busy_timer = 0; 3214 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED); 3215 sc->fw_state = IWI_FW_IDLE; 3216 wakeup(sc); 3217 } 3218 3219 static void 3220 iwi_stop(struct iwi_softc *sc) 3221 { 3222 IWI_LOCK_DECL; 3223 3224 IWI_LOCK(sc); 3225 iwi_stop_locked(sc); 3226 IWI_UNLOCK(sc); 3227 } 3228 3229 static void 3230 iwi_restart(void *arg, int npending) 3231 { 3232 struct iwi_softc *sc = arg; 3233 3234 iwi_init(sc); 3235 } 3236 3237 /* 3238 * Return whether or not the radio is enabled in hardware 3239 * (i.e. the rfkill switch is "off"). 3240 */ 3241 static int 3242 iwi_getrfkill(struct iwi_softc *sc) 3243 { 3244 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 3245 } 3246 3247 static void 3248 iwi_radio_on(void *arg, int pending) 3249 { 3250 struct iwi_softc *sc = arg; 3251 struct ieee80211com *ic = &sc->sc_ic; 3252 3253 device_printf(sc->sc_dev, "radio turned on\n"); 3254 3255 iwi_init(sc); 3256 ieee80211_notify_radio(ic, 1); 3257 } 3258 3259 static void 3260 iwi_rfkill_poll(void *arg) 3261 { 3262 struct iwi_softc *sc = arg; 3263 3264 IWI_LOCK_ASSERT(sc); 3265 3266 /* 3267 * Check for a change in rfkill state. We get an 3268 * interrupt when a radio is disabled but not when 3269 * it is enabled so we must poll for the latter. 3270 */ 3271 if (!iwi_getrfkill(sc)) { 3272 ieee80211_runtask(&sc->sc_ic, &sc->sc_radiontask); 3273 return; 3274 } 3275 callout_reset(&sc->sc_rftimer, 2*hz, iwi_rfkill_poll, sc); 3276 } 3277 3278 static void 3279 iwi_radio_off(void *arg, int pending) 3280 { 3281 struct iwi_softc *sc = arg; 3282 struct ieee80211com *ic = &sc->sc_ic; 3283 IWI_LOCK_DECL; 3284 3285 device_printf(sc->sc_dev, "radio turned off\n"); 3286 3287 ieee80211_notify_radio(ic, 0); 3288 3289 IWI_LOCK(sc); 3290 iwi_stop_locked(sc); 3291 iwi_rfkill_poll(sc); 3292 IWI_UNLOCK(sc); 3293 } 3294 3295 static int 3296 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS) 3297 { 3298 struct iwi_softc *sc = arg1; 3299 uint32_t size, buf[128]; 3300 3301 memset(buf, 0, sizeof buf); 3302 3303 if (!(sc->flags & IWI_FLAG_FW_INITED)) 3304 return SYSCTL_OUT(req, buf, sizeof buf); 3305 3306 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 3307 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 3308 3309 return SYSCTL_OUT(req, buf, size); 3310 } 3311 3312 static int 3313 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS) 3314 { 3315 struct iwi_softc *sc = arg1; 3316 int val = !iwi_getrfkill(sc); 3317 3318 return SYSCTL_OUT(req, &val, sizeof val); 3319 } 3320 3321 /* 3322 * Add sysctl knobs. 3323 */ 3324 static void 3325 iwi_sysctlattach(struct iwi_softc *sc) 3326 { 3327 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 3328 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 3329 3330 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio", 3331 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I", 3332 "radio transmitter switch state (0=off, 1=on)"); 3333 3334 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats", 3335 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S", 3336 "statistics"); 3337 3338 sc->bluetooth = 0; 3339 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth", 3340 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence"); 3341 3342 sc->antenna = IWI_ANTENNA_AUTO; 3343 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna", 3344 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)"); 3345 } 3346 3347 /* 3348 * LED support. 3349 * 3350 * Different cards have different capabilities. Some have three 3351 * led's while others have only one. The linux ipw driver defines 3352 * led's for link state (associated or not), band (11a, 11g, 11b), 3353 * and for link activity. We use one led and vary the blink rate 3354 * according to the tx/rx traffic a la the ath driver. 3355 */ 3356 3357 static __inline uint32_t 3358 iwi_toggle_event(uint32_t r) 3359 { 3360 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA | 3361 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA); 3362 } 3363 3364 static uint32_t 3365 iwi_read_event(struct iwi_softc *sc) 3366 { 3367 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT); 3368 } 3369 3370 static void 3371 iwi_write_event(struct iwi_softc *sc, uint32_t v) 3372 { 3373 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v); 3374 } 3375 3376 static void 3377 iwi_led_done(void *arg) 3378 { 3379 struct iwi_softc *sc = arg; 3380 3381 sc->sc_blinking = 0; 3382 } 3383 3384 /* 3385 * Turn the activity LED off: flip the pin and then set a timer so no 3386 * update will happen for the specified duration. 3387 */ 3388 static void 3389 iwi_led_off(void *arg) 3390 { 3391 struct iwi_softc *sc = arg; 3392 uint32_t v; 3393 3394 v = iwi_read_event(sc); 3395 v &= ~sc->sc_ledpin; 3396 iwi_write_event(sc, iwi_toggle_event(v)); 3397 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, iwi_led_done, sc); 3398 } 3399 3400 /* 3401 * Blink the LED according to the specified on/off times. 3402 */ 3403 static void 3404 iwi_led_blink(struct iwi_softc *sc, int on, int off) 3405 { 3406 uint32_t v; 3407 3408 v = iwi_read_event(sc); 3409 v |= sc->sc_ledpin; 3410 iwi_write_event(sc, iwi_toggle_event(v)); 3411 sc->sc_blinking = 1; 3412 sc->sc_ledoff = off; 3413 callout_reset(&sc->sc_ledtimer, on, iwi_led_off, sc); 3414 } 3415 3416 static void 3417 iwi_led_event(struct iwi_softc *sc, int event) 3418 { 3419 /* NB: on/off times from the Atheros NDIS driver, w/ permission */ 3420 static const struct { 3421 u_int rate; /* tx/rx iwi rate */ 3422 u_int16_t timeOn; /* LED on time (ms) */ 3423 u_int16_t timeOff; /* LED off time (ms) */ 3424 } blinkrates[] = { 3425 { IWI_RATE_OFDM54, 40, 10 }, 3426 { IWI_RATE_OFDM48, 44, 11 }, 3427 { IWI_RATE_OFDM36, 50, 13 }, 3428 { IWI_RATE_OFDM24, 57, 14 }, 3429 { IWI_RATE_OFDM18, 67, 16 }, 3430 { IWI_RATE_OFDM12, 80, 20 }, 3431 { IWI_RATE_DS11, 100, 25 }, 3432 { IWI_RATE_OFDM9, 133, 34 }, 3433 { IWI_RATE_OFDM6, 160, 40 }, 3434 { IWI_RATE_DS5, 200, 50 }, 3435 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */ 3436 { IWI_RATE_DS2, 267, 66 }, 3437 { IWI_RATE_DS1, 400, 100 }, 3438 { 0, 500, 130 }, /* unknown rate/polling */ 3439 }; 3440 uint32_t txrate; 3441 int j = 0; /* XXX silence compiler */ 3442 3443 sc->sc_ledevent = ticks; /* time of last event */ 3444 if (sc->sc_blinking) /* don't interrupt active blink */ 3445 return; 3446 switch (event) { 3447 case IWI_LED_POLL: 3448 j = nitems(blinkrates)-1; 3449 break; 3450 case IWI_LED_TX: 3451 /* read current transmission rate from adapter */ 3452 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE); 3453 if (blinkrates[sc->sc_txrix].rate != txrate) { 3454 for (j = 0; j < nitems(blinkrates)-1; j++) 3455 if (blinkrates[j].rate == txrate) 3456 break; 3457 sc->sc_txrix = j; 3458 } else 3459 j = sc->sc_txrix; 3460 break; 3461 case IWI_LED_RX: 3462 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) { 3463 for (j = 0; j < nitems(blinkrates)-1; j++) 3464 if (blinkrates[j].rate == sc->sc_rxrate) 3465 break; 3466 sc->sc_rxrix = j; 3467 } else 3468 j = sc->sc_rxrix; 3469 break; 3470 } 3471 /* XXX beware of overflow */ 3472 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000, 3473 (blinkrates[j].timeOff * hz) / 1000); 3474 } 3475 3476 static int 3477 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS) 3478 { 3479 struct iwi_softc *sc = arg1; 3480 int softled = sc->sc_softled; 3481 int error; 3482 3483 error = sysctl_handle_int(oidp, &softled, 0, req); 3484 if (error || !req->newptr) 3485 return error; 3486 softled = (softled != 0); 3487 if (softled != sc->sc_softled) { 3488 if (softled) { 3489 uint32_t v = iwi_read_event(sc); 3490 v &= ~sc->sc_ledpin; 3491 iwi_write_event(sc, iwi_toggle_event(v)); 3492 } 3493 sc->sc_softled = softled; 3494 } 3495 return 0; 3496 } 3497 3498 static void 3499 iwi_ledattach(struct iwi_softc *sc) 3500 { 3501 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 3502 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 3503 3504 sc->sc_blinking = 0; 3505 sc->sc_ledstate = 1; 3506 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */ 3507 callout_init_mtx(&sc->sc_ledtimer, &sc->sc_mtx, 0); 3508 3509 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3510 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 3511 iwi_sysctl_softled, "I", "enable/disable software LED support"); 3512 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3513 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0, 3514 "pin setting to turn activity LED on"); 3515 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3516 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0, 3517 "idle time for inactivity LED (ticks)"); 3518 /* XXX for debugging */ 3519 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3520 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0, 3521 "NIC type from EEPROM"); 3522 3523 sc->sc_ledpin = IWI_RST_LED_ACTIVITY; 3524 sc->sc_softled = 1; 3525 3526 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff; 3527 if (sc->sc_nictype == 1) { 3528 /* 3529 * NB: led's are reversed. 3530 */ 3531 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED; 3532 } 3533 } 3534 3535 static void 3536 iwi_scan_start(struct ieee80211com *ic) 3537 { 3538 /* ignore */ 3539 } 3540 3541 static void 3542 iwi_set_channel(struct ieee80211com *ic) 3543 { 3544 struct iwi_softc *sc = ic->ic_softc; 3545 3546 if (sc->fw_state == IWI_FW_IDLE) 3547 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee); 3548 } 3549 3550 static void 3551 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 3552 { 3553 struct ieee80211vap *vap = ss->ss_vap; 3554 struct iwi_softc *sc = vap->iv_ic->ic_softc; 3555 IWI_LOCK_DECL; 3556 3557 IWI_LOCK(sc); 3558 if (iwi_scanchan(sc, maxdwell, 0)) 3559 ieee80211_cancel_scan(vap); 3560 IWI_UNLOCK(sc); 3561 } 3562 3563 static void 3564 iwi_scan_mindwell(struct ieee80211_scan_state *ss) 3565 { 3566 /* NB: don't try to abort scan; wait for firmware to finish */ 3567 } 3568 3569 static void 3570 iwi_scan_end(struct ieee80211com *ic) 3571 { 3572 struct iwi_softc *sc = ic->ic_softc; 3573 IWI_LOCK_DECL; 3574 3575 IWI_LOCK(sc); 3576 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN; 3577 /* NB: make sure we're still scanning */ 3578 if (sc->fw_state == IWI_FW_SCANNING) 3579 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0); 3580 IWI_UNLOCK(sc); 3581 } 3582 3583 static void 3584 iwi_collect_bands(struct ieee80211com *ic, uint8_t bands[], size_t bands_sz) 3585 { 3586 struct iwi_softc *sc = ic->ic_softc; 3587 device_t dev = sc->sc_dev; 3588 3589 memset(bands, 0, bands_sz); 3590 setbit(bands, IEEE80211_MODE_11B); 3591 setbit(bands, IEEE80211_MODE_11G); 3592 if (pci_get_device(dev) >= 0x4223) 3593 setbit(bands, IEEE80211_MODE_11A); 3594 } 3595 3596 static void 3597 iwi_getradiocaps(struct ieee80211com *ic, 3598 int maxchans, int *nchans, struct ieee80211_channel chans[]) 3599 { 3600 uint8_t bands[IEEE80211_MODE_BYTES]; 3601 3602 iwi_collect_bands(ic, bands, sizeof(bands)); 3603 *nchans = 0; 3604 if (isset(bands, IEEE80211_MODE_11B) || isset(bands, IEEE80211_MODE_11G)) 3605 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, 3606 bands, 0); 3607 if (isset(bands, IEEE80211_MODE_11A)) { 3608 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, 3609 def_chan_5ghz_band1, nitems(def_chan_5ghz_band1), 3610 bands, 0); 3611 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, 3612 def_chan_5ghz_band2, nitems(def_chan_5ghz_band2), 3613 bands, 0); 3614 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, 3615 def_chan_5ghz_band3, nitems(def_chan_5ghz_band3), 3616 bands, 0); 3617 } 3618 } 3619