1/*- 2 * Copyright (c) 2004, 2005 3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 4 * Copyright (c) 2005-2006 Sam Leffler, Errno Consulting 5 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/11/sys/dev/iwi/if_iwi.c 347511 2019-05-12 12:30:45Z avos $"); 32 33/*- 34 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 35 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 36 */ 37 38#include <sys/param.h> 39#include <sys/sysctl.h> 40#include <sys/sockio.h> 41#include <sys/mbuf.h> 42#include <sys/kernel.h> 43#include <sys/socket.h> 44#include <sys/systm.h> 45#include <sys/malloc.h> 46#include <sys/lock.h> 47#include <sys/mutex.h> 48#include <sys/module.h> 49#include <sys/bus.h> 50#include <sys/endian.h> 51#include <sys/proc.h> 52#include <sys/mount.h> 53#include <sys/namei.h> 54#include <sys/linker.h> 55#include <sys/firmware.h> 56#include <sys/taskqueue.h> 57 58#include <machine/bus.h> 59#include <machine/resource.h> 60#include <sys/rman.h> 61 62#include <dev/pci/pcireg.h> 63#include <dev/pci/pcivar.h> 64 65#include <net/bpf.h> 66#include <net/if.h> 67#include <net/if_var.h> 68#include <net/if_arp.h> 69#include <net/ethernet.h> 70#include <net/if_dl.h> 71#include <net/if_media.h> 72#include <net/if_types.h> 73 74#include <net80211/ieee80211_var.h> 75#include <net80211/ieee80211_radiotap.h> 76#include <net80211/ieee80211_input.h> 77#include <net80211/ieee80211_regdomain.h> 78 79#include <netinet/in.h> 80#include <netinet/in_systm.h> 81#include <netinet/in_var.h> 82#include <netinet/ip.h> 83#include <netinet/if_ether.h> 84 85#include <dev/iwi/if_iwireg.h> 86#include <dev/iwi/if_iwivar.h> 87#include <dev/iwi/if_iwi_ioctl.h> 88 89#define IWI_DEBUG 90#ifdef IWI_DEBUG 91#define DPRINTF(x) do { if (iwi_debug > 0) printf x; } while (0) 92#define DPRINTFN(n, x) do { if (iwi_debug >= (n)) printf x; } while (0) 93int iwi_debug = 0; 94SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); 95 96static const char *iwi_fw_states[] = { 97 "IDLE", /* IWI_FW_IDLE */ 98 "LOADING", /* IWI_FW_LOADING */ 99 "ASSOCIATING", /* IWI_FW_ASSOCIATING */ 100 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */ 101 "SCANNING", /* IWI_FW_SCANNING */ 102}; 103#else 104#define DPRINTF(x) 105#define DPRINTFN(n, x) 106#endif 107 108MODULE_DEPEND(iwi, pci, 1, 1, 1); 109MODULE_DEPEND(iwi, wlan, 1, 1, 1); 110MODULE_DEPEND(iwi, firmware, 1, 1, 1); 111 112enum { 113 IWI_LED_TX, 114 IWI_LED_RX, 115 IWI_LED_POLL, 116}; 117 118struct iwi_ident { 119 uint16_t vendor; 120 uint16_t device; 121 const char *name; 122}; 123 124static const struct iwi_ident iwi_ident_table[] = { 125 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, 126 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, 127 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, 128 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, 129 130 { 0, 0, NULL } 131}; 132 133static const uint8_t def_chan_5ghz_band1[] = 134 { 36, 40, 44, 48, 52, 56, 60, 64 }; 135static const uint8_t def_chan_5ghz_band2[] = 136 { 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 }; 137static const uint8_t def_chan_5ghz_band3[] = 138 { 149, 153, 157, 161, 165 }; 139 140static struct ieee80211vap *iwi_vap_create(struct ieee80211com *, 141 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 142 const uint8_t [IEEE80211_ADDR_LEN], 143 const uint8_t [IEEE80211_ADDR_LEN]); 144static void iwi_vap_delete(struct ieee80211vap *); 145static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 146static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 147 int); 148static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 149static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 150static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 151 int, bus_addr_t, bus_addr_t); 152static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 153static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 154static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 155 int); 156static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 157static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 158static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *, 159 const uint8_t [IEEE80211_ADDR_LEN]); 160static void iwi_node_free(struct ieee80211_node *); 161static void iwi_media_status(struct ifnet *, struct ifmediareq *); 162static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 163static void iwi_wme_init(struct iwi_softc *); 164static int iwi_wme_setparams(struct iwi_softc *); 165static int iwi_wme_update(struct ieee80211com *); 166static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 167static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 168 struct iwi_frame *); 169static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 170static void iwi_rx_intr(struct iwi_softc *); 171static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 172static void iwi_intr(void *); 173static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t); 174static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int); 175static int iwi_tx_start(struct iwi_softc *, struct mbuf *, 176 struct ieee80211_node *, int); 177static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *, 178 const struct ieee80211_bpf_params *); 179static void iwi_start(struct iwi_softc *); 180static int iwi_transmit(struct ieee80211com *, struct mbuf *); 181static void iwi_watchdog(void *); 182static int iwi_ioctl(struct ieee80211com *, u_long, void *); 183static void iwi_parent(struct ieee80211com *); 184static void iwi_stop_master(struct iwi_softc *); 185static int iwi_reset(struct iwi_softc *); 186static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *); 187static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *); 188static void iwi_release_fw_dma(struct iwi_softc *sc); 189static int iwi_config(struct iwi_softc *); 190static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode); 191static void iwi_put_firmware(struct iwi_softc *); 192static void iwi_monitor_scan(void *, int); 193static int iwi_scanchan(struct iwi_softc *, unsigned long, int); 194static void iwi_scan_start(struct ieee80211com *); 195static void iwi_scan_end(struct ieee80211com *); 196static void iwi_set_channel(struct ieee80211com *); 197static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell); 198static void iwi_scan_mindwell(struct ieee80211_scan_state *); 199static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *); 200static void iwi_disassoc(void *, int); 201static int iwi_disassociate(struct iwi_softc *, int quiet); 202static void iwi_init_locked(struct iwi_softc *); 203static void iwi_init(void *); 204static int iwi_init_fw_dma(struct iwi_softc *, int); 205static void iwi_stop_locked(void *); 206static void iwi_stop(struct iwi_softc *); 207static void iwi_restart(void *, int); 208static int iwi_getrfkill(struct iwi_softc *); 209static void iwi_radio_on(void *, int); 210static void iwi_radio_off(void *, int); 211static void iwi_sysctlattach(struct iwi_softc *); 212static void iwi_led_event(struct iwi_softc *, int); 213static void iwi_ledattach(struct iwi_softc *); 214static void iwi_collect_bands(struct ieee80211com *, uint8_t [], size_t); 215static void iwi_getradiocaps(struct ieee80211com *, int, int *, 216 struct ieee80211_channel []); 217 218static int iwi_probe(device_t); 219static int iwi_attach(device_t); 220static int iwi_detach(device_t); 221static int iwi_shutdown(device_t); 222static int iwi_suspend(device_t); 223static int iwi_resume(device_t); 224 225static device_method_t iwi_methods[] = { 226 /* Device interface */ 227 DEVMETHOD(device_probe, iwi_probe), 228 DEVMETHOD(device_attach, iwi_attach), 229 DEVMETHOD(device_detach, iwi_detach), 230 DEVMETHOD(device_shutdown, iwi_shutdown), 231 DEVMETHOD(device_suspend, iwi_suspend), 232 DEVMETHOD(device_resume, iwi_resume), 233 234 DEVMETHOD_END 235}; 236 237static driver_t iwi_driver = { 238 "iwi", 239 iwi_methods, 240 sizeof (struct iwi_softc) 241}; 242 243static devclass_t iwi_devclass; 244 245DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL); 246 247MODULE_VERSION(iwi, 1); 248 249static __inline uint8_t 250MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 251{ 252 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 253 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 254} 255 256static __inline uint32_t 257MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 258{ 259 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 260 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 261} 262 263static int 264iwi_probe(device_t dev) 265{ 266 const struct iwi_ident *ident; 267 268 for (ident = iwi_ident_table; ident->name != NULL; ident++) { 269 if (pci_get_vendor(dev) == ident->vendor && 270 pci_get_device(dev) == ident->device) { 271 device_set_desc(dev, ident->name); 272 return (BUS_PROBE_DEFAULT); 273 } 274 } 275 return ENXIO; 276} 277 278static int 279iwi_attach(device_t dev) 280{ 281 struct iwi_softc *sc = device_get_softc(dev); 282 struct ieee80211com *ic = &sc->sc_ic; 283 uint16_t val; 284 int i, error; 285 286 sc->sc_dev = dev; 287 sc->sc_ledevent = ticks; 288 289 IWI_LOCK_INIT(sc); 290 mbufq_init(&sc->sc_snd, ifqmaxlen); 291 292 sc->sc_unr = new_unrhdr(1, IWI_MAX_IBSSNODE-1, &sc->sc_mtx); 293 294 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc); 295 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc); 296 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc); 297 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc); 298 TASK_INIT(&sc->sc_monitortask, 0, iwi_monitor_scan, sc); 299 300 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0); 301 callout_init_mtx(&sc->sc_rftimer, &sc->sc_mtx, 0); 302 303 pci_write_config(dev, 0x41, 0, 1); 304 305 /* enable bus-mastering */ 306 pci_enable_busmaster(dev); 307 308 i = PCIR_BAR(0); 309 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE); 310 if (sc->mem == NULL) { 311 device_printf(dev, "could not allocate memory resource\n"); 312 goto fail; 313 } 314 315 sc->sc_st = rman_get_bustag(sc->mem); 316 sc->sc_sh = rman_get_bushandle(sc->mem); 317 318 i = 0; 319 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, 320 RF_ACTIVE | RF_SHAREABLE); 321 if (sc->irq == NULL) { 322 device_printf(dev, "could not allocate interrupt resource\n"); 323 goto fail; 324 } 325 326 if (iwi_reset(sc) != 0) { 327 device_printf(dev, "could not reset adapter\n"); 328 goto fail; 329 } 330 331 /* 332 * Allocate rings. 333 */ 334 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 335 device_printf(dev, "could not allocate Cmd ring\n"); 336 goto fail; 337 } 338 339 for (i = 0; i < 4; i++) { 340 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT, 341 IWI_CSR_TX1_RIDX + i * 4, 342 IWI_CSR_TX1_WIDX + i * 4); 343 if (error != 0) { 344 device_printf(dev, "could not allocate Tx ring %d\n", 345 i+i); 346 goto fail; 347 } 348 } 349 350 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 351 device_printf(dev, "could not allocate Rx ring\n"); 352 goto fail; 353 } 354 355 iwi_wme_init(sc); 356 357 ic->ic_softc = sc; 358 ic->ic_name = device_get_nameunit(dev); 359 ic->ic_opmode = IEEE80211_M_STA; 360 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 361 362 /* set device capabilities */ 363 ic->ic_caps = 364 IEEE80211_C_STA /* station mode supported */ 365 | IEEE80211_C_IBSS /* IBSS mode supported */ 366 | IEEE80211_C_MONITOR /* monitor mode supported */ 367 | IEEE80211_C_PMGT /* power save supported */ 368 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 369 | IEEE80211_C_WPA /* 802.11i */ 370 | IEEE80211_C_WME /* 802.11e */ 371#if 0 372 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 373#endif 374 ; 375 376 /* read MAC address from EEPROM */ 377 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 378 ic->ic_macaddr[0] = val & 0xff; 379 ic->ic_macaddr[1] = val >> 8; 380 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 381 ic->ic_macaddr[2] = val & 0xff; 382 ic->ic_macaddr[3] = val >> 8; 383 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 384 ic->ic_macaddr[4] = val & 0xff; 385 ic->ic_macaddr[5] = val >> 8; 386 387 iwi_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 388 ic->ic_channels); 389 390 ieee80211_ifattach(ic); 391 /* override default methods */ 392 ic->ic_node_alloc = iwi_node_alloc; 393 sc->sc_node_free = ic->ic_node_free; 394 ic->ic_node_free = iwi_node_free; 395 ic->ic_raw_xmit = iwi_raw_xmit; 396 ic->ic_scan_start = iwi_scan_start; 397 ic->ic_scan_end = iwi_scan_end; 398 ic->ic_set_channel = iwi_set_channel; 399 ic->ic_scan_curchan = iwi_scan_curchan; 400 ic->ic_scan_mindwell = iwi_scan_mindwell; 401 ic->ic_wme.wme_update = iwi_wme_update; 402 403 ic->ic_vap_create = iwi_vap_create; 404 ic->ic_vap_delete = iwi_vap_delete; 405 ic->ic_ioctl = iwi_ioctl; 406 ic->ic_transmit = iwi_transmit; 407 ic->ic_parent = iwi_parent; 408 ic->ic_getradiocaps = iwi_getradiocaps; 409 410 ieee80211_radiotap_attach(ic, 411 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 412 IWI_TX_RADIOTAP_PRESENT, 413 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 414 IWI_RX_RADIOTAP_PRESENT); 415 416 iwi_sysctlattach(sc); 417 iwi_ledattach(sc); 418 419 /* 420 * Hook our interrupt after all initialization is complete. 421 */ 422 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 423 NULL, iwi_intr, sc, &sc->sc_ih); 424 if (error != 0) { 425 device_printf(dev, "could not set up interrupt\n"); 426 goto fail; 427 } 428 429 if (bootverbose) 430 ieee80211_announce(ic); 431 432 return 0; 433fail: 434 /* XXX fix */ 435 iwi_detach(dev); 436 return ENXIO; 437} 438 439static int 440iwi_detach(device_t dev) 441{ 442 struct iwi_softc *sc = device_get_softc(dev); 443 struct ieee80211com *ic = &sc->sc_ic; 444 445 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 446 447 /* NB: do early to drain any pending tasks */ 448 ieee80211_draintask(ic, &sc->sc_radiontask); 449 ieee80211_draintask(ic, &sc->sc_radiofftask); 450 ieee80211_draintask(ic, &sc->sc_restarttask); 451 ieee80211_draintask(ic, &sc->sc_disassoctask); 452 ieee80211_draintask(ic, &sc->sc_monitortask); 453 454 iwi_stop(sc); 455 456 ieee80211_ifdetach(ic); 457 458 iwi_put_firmware(sc); 459 iwi_release_fw_dma(sc); 460 461 iwi_free_cmd_ring(sc, &sc->cmdq); 462 iwi_free_tx_ring(sc, &sc->txq[0]); 463 iwi_free_tx_ring(sc, &sc->txq[1]); 464 iwi_free_tx_ring(sc, &sc->txq[2]); 465 iwi_free_tx_ring(sc, &sc->txq[3]); 466 iwi_free_rx_ring(sc, &sc->rxq); 467 468 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq); 469 470 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem), 471 sc->mem); 472 473 delete_unrhdr(sc->sc_unr); 474 mbufq_drain(&sc->sc_snd); 475 476 IWI_LOCK_DESTROY(sc); 477 478 return 0; 479} 480 481static struct ieee80211vap * 482iwi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 483 enum ieee80211_opmode opmode, int flags, 484 const uint8_t bssid[IEEE80211_ADDR_LEN], 485 const uint8_t mac[IEEE80211_ADDR_LEN]) 486{ 487 struct iwi_softc *sc = ic->ic_softc; 488 struct iwi_vap *ivp; 489 struct ieee80211vap *vap; 490 int i; 491 492 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 493 return NULL; 494 /* 495 * Get firmware image (and possibly dma memory) on mode change. 496 */ 497 if (iwi_get_firmware(sc, opmode)) 498 return NULL; 499 /* allocate DMA memory for mapping firmware image */ 500 i = sc->fw_fw.size; 501 if (sc->fw_boot.size > i) 502 i = sc->fw_boot.size; 503 /* XXX do we dma the ucode as well ? */ 504 if (sc->fw_uc.size > i) 505 i = sc->fw_uc.size; 506 if (iwi_init_fw_dma(sc, i)) 507 return NULL; 508 509 ivp = malloc(sizeof(struct iwi_vap), M_80211_VAP, M_WAITOK | M_ZERO); 510 vap = &ivp->iwi_vap; 511 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 512 /* override the default, the setting comes from the linux driver */ 513 vap->iv_bmissthreshold = 24; 514 /* override with driver methods */ 515 ivp->iwi_newstate = vap->iv_newstate; 516 vap->iv_newstate = iwi_newstate; 517 518 /* complete setup */ 519 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status, 520 mac); 521 ic->ic_opmode = opmode; 522 return vap; 523} 524 525static void 526iwi_vap_delete(struct ieee80211vap *vap) 527{ 528 struct iwi_vap *ivp = IWI_VAP(vap); 529 530 ieee80211_vap_detach(vap); 531 free(ivp, M_80211_VAP); 532} 533 534static void 535iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 536{ 537 if (error != 0) 538 return; 539 540 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 541 542 *(bus_addr_t *)arg = segs[0].ds_addr; 543} 544 545static int 546iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) 547{ 548 int error; 549 550 ring->count = count; 551 ring->queued = 0; 552 ring->cur = ring->next = 0; 553 554 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 555 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 556 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 0, 557 NULL, NULL, &ring->desc_dmat); 558 if (error != 0) { 559 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 560 goto fail; 561 } 562 563 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 564 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 565 if (error != 0) { 566 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 567 goto fail; 568 } 569 570 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 571 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 572 if (error != 0) { 573 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 574 goto fail; 575 } 576 577 return 0; 578 579fail: iwi_free_cmd_ring(sc, ring); 580 return error; 581} 582 583static void 584iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 585{ 586 ring->queued = 0; 587 ring->cur = ring->next = 0; 588} 589 590static void 591iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 592{ 593 if (ring->desc != NULL) { 594 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 595 BUS_DMASYNC_POSTWRITE); 596 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 597 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 598 } 599 600 if (ring->desc_dmat != NULL) 601 bus_dma_tag_destroy(ring->desc_dmat); 602} 603 604static int 605iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, 606 bus_addr_t csr_ridx, bus_addr_t csr_widx) 607{ 608 int i, error; 609 610 ring->count = count; 611 ring->queued = 0; 612 ring->cur = ring->next = 0; 613 ring->csr_ridx = csr_ridx; 614 ring->csr_widx = csr_widx; 615 616 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 617 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 618 count * IWI_TX_DESC_SIZE, 1, count * IWI_TX_DESC_SIZE, 0, NULL, 619 NULL, &ring->desc_dmat); 620 if (error != 0) { 621 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 622 goto fail; 623 } 624 625 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 626 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 627 if (error != 0) { 628 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 629 goto fail; 630 } 631 632 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 633 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 634 if (error != 0) { 635 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 636 goto fail; 637 } 638 639 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 640 M_NOWAIT | M_ZERO); 641 if (ring->data == NULL) { 642 device_printf(sc->sc_dev, "could not allocate soft data\n"); 643 error = ENOMEM; 644 goto fail; 645 } 646 647 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 648 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 649 IWI_MAX_NSEG, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 650 if (error != 0) { 651 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 652 goto fail; 653 } 654 655 for (i = 0; i < count; i++) { 656 error = bus_dmamap_create(ring->data_dmat, 0, 657 &ring->data[i].map); 658 if (error != 0) { 659 device_printf(sc->sc_dev, "could not create DMA map\n"); 660 goto fail; 661 } 662 } 663 664 return 0; 665 666fail: iwi_free_tx_ring(sc, ring); 667 return error; 668} 669 670static void 671iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 672{ 673 struct iwi_tx_data *data; 674 int i; 675 676 for (i = 0; i < ring->count; i++) { 677 data = &ring->data[i]; 678 679 if (data->m != NULL) { 680 bus_dmamap_sync(ring->data_dmat, data->map, 681 BUS_DMASYNC_POSTWRITE); 682 bus_dmamap_unload(ring->data_dmat, data->map); 683 m_freem(data->m); 684 data->m = NULL; 685 } 686 687 if (data->ni != NULL) { 688 ieee80211_free_node(data->ni); 689 data->ni = NULL; 690 } 691 } 692 693 ring->queued = 0; 694 ring->cur = ring->next = 0; 695} 696 697static void 698iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 699{ 700 struct iwi_tx_data *data; 701 int i; 702 703 if (ring->desc != NULL) { 704 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 705 BUS_DMASYNC_POSTWRITE); 706 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 707 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 708 } 709 710 if (ring->desc_dmat != NULL) 711 bus_dma_tag_destroy(ring->desc_dmat); 712 713 if (ring->data != NULL) { 714 for (i = 0; i < ring->count; i++) { 715 data = &ring->data[i]; 716 717 if (data->m != NULL) { 718 bus_dmamap_sync(ring->data_dmat, data->map, 719 BUS_DMASYNC_POSTWRITE); 720 bus_dmamap_unload(ring->data_dmat, data->map); 721 m_freem(data->m); 722 } 723 724 if (data->ni != NULL) 725 ieee80211_free_node(data->ni); 726 727 if (data->map != NULL) 728 bus_dmamap_destroy(ring->data_dmat, data->map); 729 } 730 731 free(ring->data, M_DEVBUF); 732 } 733 734 if (ring->data_dmat != NULL) 735 bus_dma_tag_destroy(ring->data_dmat); 736} 737 738static int 739iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 740{ 741 struct iwi_rx_data *data; 742 int i, error; 743 744 ring->count = count; 745 ring->cur = 0; 746 747 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 748 M_NOWAIT | M_ZERO); 749 if (ring->data == NULL) { 750 device_printf(sc->sc_dev, "could not allocate soft data\n"); 751 error = ENOMEM; 752 goto fail; 753 } 754 755 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 756 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 757 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 758 if (error != 0) { 759 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 760 goto fail; 761 } 762 763 for (i = 0; i < count; i++) { 764 data = &ring->data[i]; 765 766 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 767 if (error != 0) { 768 device_printf(sc->sc_dev, "could not create DMA map\n"); 769 goto fail; 770 } 771 772 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 773 if (data->m == NULL) { 774 device_printf(sc->sc_dev, 775 "could not allocate rx mbuf\n"); 776 error = ENOMEM; 777 goto fail; 778 } 779 780 error = bus_dmamap_load(ring->data_dmat, data->map, 781 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 782 &data->physaddr, 0); 783 if (error != 0) { 784 device_printf(sc->sc_dev, 785 "could not load rx buf DMA map"); 786 goto fail; 787 } 788 789 data->reg = IWI_CSR_RX_BASE + i * 4; 790 } 791 792 return 0; 793 794fail: iwi_free_rx_ring(sc, ring); 795 return error; 796} 797 798static void 799iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 800{ 801 ring->cur = 0; 802} 803 804static void 805iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 806{ 807 struct iwi_rx_data *data; 808 int i; 809 810 if (ring->data != NULL) { 811 for (i = 0; i < ring->count; i++) { 812 data = &ring->data[i]; 813 814 if (data->m != NULL) { 815 bus_dmamap_sync(ring->data_dmat, data->map, 816 BUS_DMASYNC_POSTREAD); 817 bus_dmamap_unload(ring->data_dmat, data->map); 818 m_freem(data->m); 819 } 820 821 if (data->map != NULL) 822 bus_dmamap_destroy(ring->data_dmat, data->map); 823 } 824 825 free(ring->data, M_DEVBUF); 826 } 827 828 if (ring->data_dmat != NULL) 829 bus_dma_tag_destroy(ring->data_dmat); 830} 831 832static int 833iwi_shutdown(device_t dev) 834{ 835 struct iwi_softc *sc = device_get_softc(dev); 836 837 iwi_stop(sc); 838 iwi_put_firmware(sc); /* ??? XXX */ 839 840 return 0; 841} 842 843static int 844iwi_suspend(device_t dev) 845{ 846 struct iwi_softc *sc = device_get_softc(dev); 847 struct ieee80211com *ic = &sc->sc_ic; 848 849 ieee80211_suspend_all(ic); 850 return 0; 851} 852 853static int 854iwi_resume(device_t dev) 855{ 856 struct iwi_softc *sc = device_get_softc(dev); 857 struct ieee80211com *ic = &sc->sc_ic; 858 859 pci_write_config(dev, 0x41, 0, 1); 860 861 ieee80211_resume_all(ic); 862 return 0; 863} 864 865static struct ieee80211_node * 866iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 867{ 868 struct iwi_node *in; 869 870 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 871 if (in == NULL) 872 return NULL; 873 /* XXX assign sta table entry for adhoc */ 874 in->in_station = -1; 875 876 return &in->in_node; 877} 878 879static void 880iwi_node_free(struct ieee80211_node *ni) 881{ 882 struct ieee80211com *ic = ni->ni_ic; 883 struct iwi_softc *sc = ic->ic_softc; 884 struct iwi_node *in = (struct iwi_node *)ni; 885 886 if (in->in_station != -1) { 887 DPRINTF(("%s mac %6D station %u\n", __func__, 888 ni->ni_macaddr, ":", in->in_station)); 889 free_unr(sc->sc_unr, in->in_station); 890 } 891 892 sc->sc_node_free(ni); 893} 894 895/* 896 * Convert h/w rate code to IEEE rate code. 897 */ 898static int 899iwi_cvtrate(int iwirate) 900{ 901 switch (iwirate) { 902 case IWI_RATE_DS1: return 2; 903 case IWI_RATE_DS2: return 4; 904 case IWI_RATE_DS5: return 11; 905 case IWI_RATE_DS11: return 22; 906 case IWI_RATE_OFDM6: return 12; 907 case IWI_RATE_OFDM9: return 18; 908 case IWI_RATE_OFDM12: return 24; 909 case IWI_RATE_OFDM18: return 36; 910 case IWI_RATE_OFDM24: return 48; 911 case IWI_RATE_OFDM36: return 72; 912 case IWI_RATE_OFDM48: return 96; 913 case IWI_RATE_OFDM54: return 108; 914 } 915 return 0; 916} 917 918/* 919 * The firmware automatically adapts the transmit speed. We report its current 920 * value here. 921 */ 922static void 923iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 924{ 925 struct ieee80211vap *vap = ifp->if_softc; 926 struct ieee80211com *ic = vap->iv_ic; 927 struct iwi_softc *sc = ic->ic_softc; 928 struct ieee80211_node *ni; 929 930 /* read current transmission rate from adapter */ 931 ni = ieee80211_ref_node(vap->iv_bss); 932 ni->ni_txrate = 933 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 934 ieee80211_free_node(ni); 935 ieee80211_media_status(ifp, imr); 936} 937 938static int 939iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 940{ 941 struct iwi_vap *ivp = IWI_VAP(vap); 942 struct ieee80211com *ic = vap->iv_ic; 943 struct iwi_softc *sc = ic->ic_softc; 944 IWI_LOCK_DECL; 945 946 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 947 ieee80211_state_name[vap->iv_state], 948 ieee80211_state_name[nstate], sc->flags)); 949 950 IEEE80211_UNLOCK(ic); 951 IWI_LOCK(sc); 952 switch (nstate) { 953 case IEEE80211_S_INIT: 954 /* 955 * NB: don't try to do this if iwi_stop_master has 956 * shutdown the firmware and disabled interrupts. 957 */ 958 if (vap->iv_state == IEEE80211_S_RUN && 959 (sc->flags & IWI_FLAG_FW_INITED)) 960 iwi_disassociate(sc, 0); 961 break; 962 case IEEE80211_S_AUTH: 963 iwi_auth_and_assoc(sc, vap); 964 break; 965 case IEEE80211_S_RUN: 966 if (vap->iv_opmode == IEEE80211_M_IBSS && 967 vap->iv_state == IEEE80211_S_SCAN) { 968 /* 969 * XXX when joining an ibss network we are called 970 * with a SCAN -> RUN transition on scan complete. 971 * Use that to call iwi_auth_and_assoc. On completing 972 * the join we are then called again with an 973 * AUTH -> RUN transition and we want to do nothing. 974 * This is all totally bogus and needs to be redone. 975 */ 976 iwi_auth_and_assoc(sc, vap); 977 } else if (vap->iv_opmode == IEEE80211_M_MONITOR) 978 ieee80211_runtask(ic, &sc->sc_monitortask); 979 break; 980 case IEEE80211_S_ASSOC: 981 /* 982 * If we are transitioning from AUTH then just wait 983 * for the ASSOC status to come back from the firmware. 984 * Otherwise we need to issue the association request. 985 */ 986 if (vap->iv_state == IEEE80211_S_AUTH) 987 break; 988 iwi_auth_and_assoc(sc, vap); 989 break; 990 default: 991 break; 992 } 993 IWI_UNLOCK(sc); 994 IEEE80211_LOCK(ic); 995 return ivp->iwi_newstate(vap, nstate, arg); 996} 997 998/* 999 * WME parameters coming from IEEE 802.11e specification. These values are 1000 * already declared in ieee80211_proto.c, but they are static so they can't 1001 * be reused here. 1002 */ 1003static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 1004 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ 1005 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ 1006 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ 1007 { 0, 2, 3, 4, 102 } /* WME_AC_VO */ 1008}; 1009 1010static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 1011 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ 1012 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ 1013 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ 1014 { 0, 2, 2, 3, 47 } /* WME_AC_VO */ 1015}; 1016#define IWI_EXP2(v) htole16((1 << (v)) - 1) 1017#define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1018 1019static void 1020iwi_wme_init(struct iwi_softc *sc) 1021{ 1022 const struct wmeParams *wmep; 1023 int ac; 1024 1025 memset(sc->wme, 0, sizeof sc->wme); 1026 for (ac = 0; ac < WME_NUM_AC; ac++) { 1027 /* set WME values for CCK modulation */ 1028 wmep = &iwi_wme_cck_params[ac]; 1029 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn; 1030 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1031 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1032 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1033 sc->wme[1].acm[ac] = wmep->wmep_acm; 1034 1035 /* set WME values for OFDM modulation */ 1036 wmep = &iwi_wme_ofdm_params[ac]; 1037 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn; 1038 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1039 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1040 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1041 sc->wme[2].acm[ac] = wmep->wmep_acm; 1042 } 1043} 1044 1045static int 1046iwi_wme_setparams(struct iwi_softc *sc) 1047{ 1048 struct ieee80211com *ic = &sc->sc_ic; 1049 const struct wmeParams *wmep; 1050 int ac; 1051 1052 for (ac = 0; ac < WME_NUM_AC; ac++) { 1053 /* set WME values for current operating mode */ 1054 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1055 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn; 1056 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1057 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1058 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1059 sc->wme[0].acm[ac] = wmep->wmep_acm; 1060 } 1061 1062 DPRINTF(("Setting WME parameters\n")); 1063 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme); 1064} 1065#undef IWI_USEC 1066#undef IWI_EXP2 1067 1068static int 1069iwi_wme_update(struct ieee80211com *ic) 1070{ 1071 struct iwi_softc *sc = ic->ic_softc; 1072 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1073 IWI_LOCK_DECL; 1074 1075 /* 1076 * We may be called to update the WME parameters in 1077 * the adapter at various places. If we're already 1078 * associated then initiate the request immediately; 1079 * otherwise we assume the params will get sent down 1080 * to the adapter as part of the work iwi_auth_and_assoc 1081 * does. 1082 */ 1083 if (vap->iv_state == IEEE80211_S_RUN) { 1084 IWI_LOCK(sc); 1085 iwi_wme_setparams(sc); 1086 IWI_UNLOCK(sc); 1087 } 1088 return (0); 1089} 1090 1091static int 1092iwi_wme_setie(struct iwi_softc *sc) 1093{ 1094 struct ieee80211_wme_info wme; 1095 1096 memset(&wme, 0, sizeof wme); 1097 wme.wme_id = IEEE80211_ELEMID_VENDOR; 1098 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 1099 wme.wme_oui[0] = 0x00; 1100 wme.wme_oui[1] = 0x50; 1101 wme.wme_oui[2] = 0xf2; 1102 wme.wme_type = WME_OUI_TYPE; 1103 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 1104 wme.wme_version = WME_VERSION; 1105 wme.wme_info = 0; 1106 1107 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 1108 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme); 1109} 1110 1111/* 1112 * Read 16 bits at address 'addr' from the serial EEPROM. 1113 */ 1114static uint16_t 1115iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1116{ 1117 uint32_t tmp; 1118 uint16_t val; 1119 int n; 1120 1121 /* clock C once before the first command */ 1122 IWI_EEPROM_CTL(sc, 0); 1123 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1124 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1125 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1126 1127 /* write start bit (1) */ 1128 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1129 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1130 1131 /* write READ opcode (10) */ 1132 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1133 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1134 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1135 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1136 1137 /* write address A7-A0 */ 1138 for (n = 7; n >= 0; n--) { 1139 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1140 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1141 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1142 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1143 } 1144 1145 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1146 1147 /* read data Q15-Q0 */ 1148 val = 0; 1149 for (n = 15; n >= 0; n--) { 1150 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1151 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1152 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1153 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1154 } 1155 1156 IWI_EEPROM_CTL(sc, 0); 1157 1158 /* clear Chip Select and clock C */ 1159 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1160 IWI_EEPROM_CTL(sc, 0); 1161 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1162 1163 return val; 1164} 1165 1166static void 1167iwi_setcurchan(struct iwi_softc *sc, int chan) 1168{ 1169 struct ieee80211com *ic = &sc->sc_ic; 1170 1171 sc->curchan = chan; 1172 ieee80211_radiotap_chan_change(ic); 1173} 1174 1175static void 1176iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1177 struct iwi_frame *frame) 1178{ 1179 struct ieee80211com *ic = &sc->sc_ic; 1180 struct mbuf *mnew, *m; 1181 struct ieee80211_node *ni; 1182 int type, error, framelen; 1183 int8_t rssi, nf; 1184 IWI_LOCK_DECL; 1185 1186 framelen = le16toh(frame->len); 1187 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) { 1188 /* 1189 * XXX >MCLBYTES is bogus as it means the h/w dma'd 1190 * out of bounds; need to figure out how to limit 1191 * frame size in the firmware 1192 */ 1193 /* XXX stat */ 1194 DPRINTFN(1, 1195 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1196 le16toh(frame->len), frame->chan, frame->rssi, 1197 frame->rssi_dbm)); 1198 return; 1199 } 1200 1201 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1202 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm)); 1203 1204 if (frame->chan != sc->curchan) 1205 iwi_setcurchan(sc, frame->chan); 1206 1207 /* 1208 * Try to allocate a new mbuf for this ring element and load it before 1209 * processing the current mbuf. If the ring element cannot be loaded, 1210 * drop the received packet and reuse the old mbuf. In the unlikely 1211 * case that the old mbuf can't be reloaded either, explicitly panic. 1212 */ 1213 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1214 if (mnew == NULL) { 1215 counter_u64_add(ic->ic_ierrors, 1); 1216 return; 1217 } 1218 1219 bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1220 1221 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1222 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, 1223 0); 1224 if (error != 0) { 1225 m_freem(mnew); 1226 1227 /* try to reload the old mbuf */ 1228 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1229 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 1230 &data->physaddr, 0); 1231 if (error != 0) { 1232 /* very unlikely that it will fail... */ 1233 panic("%s: could not load old rx mbuf", 1234 device_get_name(sc->sc_dev)); 1235 } 1236 counter_u64_add(ic->ic_ierrors, 1); 1237 return; 1238 } 1239 1240 /* 1241 * New mbuf successfully loaded, update Rx ring and continue 1242 * processing. 1243 */ 1244 m = data->m; 1245 data->m = mnew; 1246 CSR_WRITE_4(sc, data->reg, data->physaddr); 1247 1248 /* finalize mbuf */ 1249 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1250 sizeof (struct iwi_frame) + framelen; 1251 1252 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1253 1254 rssi = frame->rssi_dbm; 1255 nf = -95; 1256 if (ieee80211_radiotap_active(ic)) { 1257 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1258 1259 tap->wr_flags = 0; 1260 tap->wr_antsignal = rssi; 1261 tap->wr_antnoise = nf; 1262 tap->wr_rate = iwi_cvtrate(frame->rate); 1263 tap->wr_antenna = frame->antenna; 1264 } 1265 IWI_UNLOCK(sc); 1266 1267 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1268 if (ni != NULL) { 1269 type = ieee80211_input(ni, m, rssi, nf); 1270 ieee80211_free_node(ni); 1271 } else 1272 type = ieee80211_input_all(ic, m, rssi, nf); 1273 1274 IWI_LOCK(sc); 1275 if (sc->sc_softled) { 1276 /* 1277 * Blink for any data frame. Otherwise do a 1278 * heartbeat-style blink when idle. The latter 1279 * is mainly for station mode where we depend on 1280 * periodic beacon frames to trigger the poll event. 1281 */ 1282 if (type == IEEE80211_FC0_TYPE_DATA) { 1283 sc->sc_rxrate = frame->rate; 1284 iwi_led_event(sc, IWI_LED_RX); 1285 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle) 1286 iwi_led_event(sc, IWI_LED_POLL); 1287 } 1288} 1289 1290/* 1291 * Check for an association response frame to see if QoS 1292 * has been negotiated. We parse just enough to figure 1293 * out if we're supposed to use QoS. The proper solution 1294 * is to pass the frame up so ieee80211_input can do the 1295 * work but that's made hard by how things currently are 1296 * done in the driver. 1297 */ 1298static void 1299iwi_checkforqos(struct ieee80211vap *vap, 1300 const struct ieee80211_frame *wh, int len) 1301{ 1302#define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 1303 const uint8_t *frm, *efrm, *wme; 1304 struct ieee80211_node *ni; 1305 uint16_t capinfo, status, associd; 1306 1307 /* NB: +8 for capinfo, status, associd, and first ie */ 1308 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) || 1309 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP) 1310 return; 1311 /* 1312 * asresp frame format 1313 * [2] capability information 1314 * [2] status 1315 * [2] association ID 1316 * [tlv] supported rates 1317 * [tlv] extended supported rates 1318 * [tlv] WME 1319 */ 1320 frm = (const uint8_t *)&wh[1]; 1321 efrm = ((const uint8_t *) wh) + len; 1322 1323 capinfo = le16toh(*(const uint16_t *)frm); 1324 frm += 2; 1325 status = le16toh(*(const uint16_t *)frm); 1326 frm += 2; 1327 associd = le16toh(*(const uint16_t *)frm); 1328 frm += 2; 1329 1330 wme = NULL; 1331 while (efrm - frm > 1) { 1332 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); 1333 switch (*frm) { 1334 case IEEE80211_ELEMID_VENDOR: 1335 if (iswmeoui(frm)) 1336 wme = frm; 1337 break; 1338 } 1339 frm += frm[1] + 2; 1340 } 1341 1342 ni = ieee80211_ref_node(vap->iv_bss); 1343 ni->ni_capinfo = capinfo; 1344 ni->ni_associd = associd & 0x3fff; 1345 if (wme != NULL) 1346 ni->ni_flags |= IEEE80211_NODE_QOS; 1347 else 1348 ni->ni_flags &= ~IEEE80211_NODE_QOS; 1349 ieee80211_free_node(ni); 1350#undef SUBTYPE 1351} 1352 1353static void 1354iwi_notif_link_quality(struct iwi_softc *sc, struct iwi_notif *notif) 1355{ 1356 struct iwi_notif_link_quality *lq; 1357 int len; 1358 1359 len = le16toh(notif->len); 1360 1361 DPRINTFN(5, ("Notification (%u) - len=%d, sizeof=%zu\n", 1362 notif->type, 1363 len, 1364 sizeof(struct iwi_notif_link_quality) 1365 )); 1366 1367 /* enforce length */ 1368 if (len != sizeof(struct iwi_notif_link_quality)) { 1369 DPRINTFN(5, ("Notification: (%u) too short (%d)\n", 1370 notif->type, 1371 len)); 1372 return; 1373 } 1374 1375 lq = (struct iwi_notif_link_quality *)(notif + 1); 1376 memcpy(&sc->sc_linkqual, lq, sizeof(sc->sc_linkqual)); 1377 sc->sc_linkqual_valid = 1; 1378} 1379 1380/* 1381 * Task queue callbacks for iwi_notification_intr used to avoid LOR's. 1382 */ 1383 1384static void 1385iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1386{ 1387 struct ieee80211com *ic = &sc->sc_ic; 1388 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1389 struct iwi_notif_scan_channel *chan; 1390 struct iwi_notif_scan_complete *scan; 1391 struct iwi_notif_authentication *auth; 1392 struct iwi_notif_association *assoc; 1393 struct iwi_notif_beacon_state *beacon; 1394 1395 switch (notif->type) { 1396 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1397 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1398 1399 DPRINTFN(3, ("Scan of channel %u complete (%u)\n", 1400 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan)); 1401 1402 /* Reset the timer, the scan is still going */ 1403 sc->sc_state_timer = 3; 1404 break; 1405 1406 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1407 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1408 1409 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1410 scan->status)); 1411 1412 IWI_STATE_END(sc, IWI_FW_SCANNING); 1413 1414 /* 1415 * Monitor mode works by doing a passive scan to set 1416 * the channel and enable rx. Because we don't want 1417 * to abort a scan lest the firmware crash we scan 1418 * for a short period of time and automatically restart 1419 * the scan when notified the sweep has completed. 1420 */ 1421 if (vap->iv_opmode == IEEE80211_M_MONITOR) { 1422 ieee80211_runtask(ic, &sc->sc_monitortask); 1423 break; 1424 } 1425 1426 if (scan->status == IWI_SCAN_COMPLETED) { 1427 /* NB: don't need to defer, net80211 does it for us */ 1428 ieee80211_scan_next(vap); 1429 } 1430 break; 1431 1432 case IWI_NOTIF_TYPE_AUTHENTICATION: 1433 auth = (struct iwi_notif_authentication *)(notif + 1); 1434 switch (auth->state) { 1435 case IWI_AUTH_SUCCESS: 1436 DPRINTFN(2, ("Authentication succeeeded\n")); 1437 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1); 1438 break; 1439 case IWI_AUTH_FAIL: 1440 /* 1441 * These are delivered as an unsolicited deauth 1442 * (e.g. due to inactivity) or in response to an 1443 * associate request. 1444 */ 1445 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1446 if (vap->iv_state != IEEE80211_S_RUN) { 1447 DPRINTFN(2, ("Authentication failed\n")); 1448 vap->iv_stats.is_rx_auth_fail++; 1449 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1450 } else { 1451 DPRINTFN(2, ("Deauthenticated\n")); 1452 vap->iv_stats.is_rx_deauth++; 1453 } 1454 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1455 break; 1456 case IWI_AUTH_SENT_1: 1457 case IWI_AUTH_RECV_2: 1458 case IWI_AUTH_SEQ1_PASS: 1459 break; 1460 case IWI_AUTH_SEQ1_FAIL: 1461 DPRINTFN(2, ("Initial authentication handshake failed; " 1462 "you probably need shared key\n")); 1463 vap->iv_stats.is_rx_auth_fail++; 1464 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1465 /* XXX retry shared key when in auto */ 1466 break; 1467 default: 1468 device_printf(sc->sc_dev, 1469 "unknown authentication state %u\n", auth->state); 1470 break; 1471 } 1472 break; 1473 1474 case IWI_NOTIF_TYPE_ASSOCIATION: 1475 assoc = (struct iwi_notif_association *)(notif + 1); 1476 switch (assoc->state) { 1477 case IWI_AUTH_SUCCESS: 1478 /* re-association, do nothing */ 1479 break; 1480 case IWI_ASSOC_SUCCESS: 1481 DPRINTFN(2, ("Association succeeded\n")); 1482 sc->flags |= IWI_FLAG_ASSOCIATED; 1483 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1484 iwi_checkforqos(vap, 1485 (const struct ieee80211_frame *)(assoc+1), 1486 le16toh(notif->len) - sizeof(*assoc) - 1); 1487 ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 1488 break; 1489 case IWI_ASSOC_INIT: 1490 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1491 switch (sc->fw_state) { 1492 case IWI_FW_ASSOCIATING: 1493 DPRINTFN(2, ("Association failed\n")); 1494 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1495 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1496 break; 1497 1498 case IWI_FW_DISASSOCIATING: 1499 DPRINTFN(2, ("Dissassociated\n")); 1500 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING); 1501 vap->iv_stats.is_rx_disassoc++; 1502 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1503 break; 1504 } 1505 break; 1506 default: 1507 device_printf(sc->sc_dev, 1508 "unknown association state %u\n", assoc->state); 1509 break; 1510 } 1511 break; 1512 1513 case IWI_NOTIF_TYPE_BEACON: 1514 /* XXX check struct length */ 1515 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1516 1517 DPRINTFN(5, ("Beacon state (%u, %u)\n", 1518 beacon->state, le32toh(beacon->number))); 1519 1520 if (beacon->state == IWI_BEACON_MISS) { 1521 /* 1522 * The firmware notifies us of every beacon miss 1523 * so we need to track the count against the 1524 * configured threshold before notifying the 1525 * 802.11 layer. 1526 * XXX try to roam, drop assoc only on much higher count 1527 */ 1528 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) { 1529 DPRINTF(("Beacon miss: %u >= %u\n", 1530 le32toh(beacon->number), 1531 vap->iv_bmissthreshold)); 1532 vap->iv_stats.is_beacon_miss++; 1533 /* 1534 * It's pointless to notify the 802.11 layer 1535 * as it'll try to send a probe request (which 1536 * we'll discard) and then timeout and drop us 1537 * into scan state. Instead tell the firmware 1538 * to disassociate and then on completion we'll 1539 * kick the state machine to scan. 1540 */ 1541 ieee80211_runtask(ic, &sc->sc_disassoctask); 1542 } 1543 } 1544 break; 1545 1546 case IWI_NOTIF_TYPE_CALIBRATION: 1547 case IWI_NOTIF_TYPE_NOISE: 1548 /* XXX handle? */ 1549 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1550 break; 1551 case IWI_NOTIF_TYPE_LINK_QUALITY: 1552 iwi_notif_link_quality(sc, notif); 1553 break; 1554 1555 default: 1556 DPRINTF(("unknown notification type %u flags 0x%x len %u\n", 1557 notif->type, notif->flags, le16toh(notif->len))); 1558 break; 1559 } 1560} 1561 1562static void 1563iwi_rx_intr(struct iwi_softc *sc) 1564{ 1565 struct iwi_rx_data *data; 1566 struct iwi_hdr *hdr; 1567 uint32_t hw; 1568 1569 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1570 1571 for (; sc->rxq.cur != hw;) { 1572 data = &sc->rxq.data[sc->rxq.cur]; 1573 1574 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1575 BUS_DMASYNC_POSTREAD); 1576 1577 hdr = mtod(data->m, struct iwi_hdr *); 1578 1579 switch (hdr->type) { 1580 case IWI_HDR_TYPE_FRAME: 1581 iwi_frame_intr(sc, data, sc->rxq.cur, 1582 (struct iwi_frame *)(hdr + 1)); 1583 break; 1584 1585 case IWI_HDR_TYPE_NOTIF: 1586 iwi_notification_intr(sc, 1587 (struct iwi_notif *)(hdr + 1)); 1588 break; 1589 1590 default: 1591 device_printf(sc->sc_dev, "unknown hdr type %u\n", 1592 hdr->type); 1593 } 1594 1595 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1596 1597 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; 1598 } 1599 1600 /* tell the firmware what we have processed */ 1601 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; 1602 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1603} 1604 1605static void 1606iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1607{ 1608 struct iwi_tx_data *data; 1609 uint32_t hw; 1610 1611 hw = CSR_READ_4(sc, txq->csr_ridx); 1612 1613 while (txq->next != hw) { 1614 data = &txq->data[txq->next]; 1615 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1616 bus_dmamap_sync(txq->data_dmat, data->map, 1617 BUS_DMASYNC_POSTWRITE); 1618 bus_dmamap_unload(txq->data_dmat, data->map); 1619 ieee80211_tx_complete(data->ni, data->m, 0); 1620 data->ni = NULL; 1621 data->m = NULL; 1622 txq->queued--; 1623 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; 1624 } 1625 sc->sc_tx_timer = 0; 1626 if (sc->sc_softled) 1627 iwi_led_event(sc, IWI_LED_TX); 1628 iwi_start(sc); 1629} 1630 1631static void 1632iwi_fatal_error_intr(struct iwi_softc *sc) 1633{ 1634 struct ieee80211com *ic = &sc->sc_ic; 1635 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1636 1637 device_printf(sc->sc_dev, "firmware error\n"); 1638 if (vap != NULL) 1639 ieee80211_cancel_scan(vap); 1640 ieee80211_runtask(ic, &sc->sc_restarttask); 1641 1642 sc->flags &= ~IWI_FLAG_BUSY; 1643 sc->sc_busy_timer = 0; 1644 wakeup(sc); 1645} 1646 1647static void 1648iwi_radio_off_intr(struct iwi_softc *sc) 1649{ 1650 1651 ieee80211_runtask(&sc->sc_ic, &sc->sc_radiofftask); 1652} 1653 1654static void 1655iwi_intr(void *arg) 1656{ 1657 struct iwi_softc *sc = arg; 1658 uint32_t r; 1659 IWI_LOCK_DECL; 1660 1661 IWI_LOCK(sc); 1662 1663 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { 1664 IWI_UNLOCK(sc); 1665 return; 1666 } 1667 1668 /* acknowledge interrupts */ 1669 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1670 1671 if (r & IWI_INTR_FATAL_ERROR) { 1672 iwi_fatal_error_intr(sc); 1673 goto done; 1674 } 1675 1676 if (r & IWI_INTR_FW_INITED) { 1677 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1678 wakeup(sc); 1679 } 1680 1681 if (r & IWI_INTR_RADIO_OFF) 1682 iwi_radio_off_intr(sc); 1683 1684 if (r & IWI_INTR_CMD_DONE) { 1685 sc->flags &= ~IWI_FLAG_BUSY; 1686 sc->sc_busy_timer = 0; 1687 wakeup(sc); 1688 } 1689 1690 if (r & IWI_INTR_TX1_DONE) 1691 iwi_tx_intr(sc, &sc->txq[0]); 1692 1693 if (r & IWI_INTR_TX2_DONE) 1694 iwi_tx_intr(sc, &sc->txq[1]); 1695 1696 if (r & IWI_INTR_TX3_DONE) 1697 iwi_tx_intr(sc, &sc->txq[2]); 1698 1699 if (r & IWI_INTR_TX4_DONE) 1700 iwi_tx_intr(sc, &sc->txq[3]); 1701 1702 if (r & IWI_INTR_RX_DONE) 1703 iwi_rx_intr(sc); 1704 1705 if (r & IWI_INTR_PARITY_ERROR) { 1706 /* XXX rate-limit */ 1707 device_printf(sc->sc_dev, "parity error\n"); 1708 } 1709done: 1710 IWI_UNLOCK(sc); 1711} 1712 1713static int 1714iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len) 1715{ 1716 struct iwi_cmd_desc *desc; 1717 1718 IWI_LOCK_ASSERT(sc); 1719 1720 if (sc->flags & IWI_FLAG_BUSY) { 1721 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", 1722 __func__, type); 1723 return EAGAIN; 1724 } 1725 sc->flags |= IWI_FLAG_BUSY; 1726 sc->sc_busy_timer = 2; 1727 1728 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1729 1730 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1731 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1732 desc->type = type; 1733 desc->len = len; 1734 memcpy(desc->data, data, len); 1735 1736 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, 1737 BUS_DMASYNC_PREWRITE); 1738 1739 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, 1740 type, len)); 1741 1742 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; 1743 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1744 1745 return msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz); 1746} 1747 1748static void 1749iwi_write_ibssnode(struct iwi_softc *sc, 1750 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry) 1751{ 1752 struct iwi_ibssnode node; 1753 1754 /* write node information into NIC memory */ 1755 memset(&node, 0, sizeof node); 1756 IEEE80211_ADDR_COPY(node.bssid, addr); 1757 1758 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry)); 1759 1760 CSR_WRITE_REGION_1(sc, 1761 IWI_CSR_NODE_BASE + entry * sizeof node, 1762 (uint8_t *)&node, sizeof node); 1763} 1764 1765static int 1766iwi_tx_start(struct iwi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1767 int ac) 1768{ 1769 struct ieee80211vap *vap = ni->ni_vap; 1770 struct ieee80211com *ic = ni->ni_ic; 1771 struct iwi_node *in = (struct iwi_node *)ni; 1772 const struct ieee80211_frame *wh; 1773 struct ieee80211_key *k; 1774 const struct chanAccParams *cap; 1775 struct iwi_tx_ring *txq = &sc->txq[ac]; 1776 struct iwi_tx_data *data; 1777 struct iwi_tx_desc *desc; 1778 struct mbuf *mnew; 1779 bus_dma_segment_t segs[IWI_MAX_NSEG]; 1780 int error, nsegs, hdrlen, i; 1781 int ismcast, flags, xflags, staid; 1782 1783 IWI_LOCK_ASSERT(sc); 1784 wh = mtod(m0, const struct ieee80211_frame *); 1785 /* NB: only data frames use this path */ 1786 hdrlen = ieee80211_hdrsize(wh); 1787 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1788 flags = xflags = 0; 1789 1790 if (!ismcast) 1791 flags |= IWI_DATA_FLAG_NEED_ACK; 1792 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE) 1793 flags |= IWI_DATA_FLAG_SHPREAMBLE; 1794 if (IEEE80211_QOS_HAS_SEQ(wh)) { 1795 xflags |= IWI_DATA_XFLAG_QOS; 1796 cap = &ic->ic_wme.wme_chanParams; 1797 if (!cap->cap_wmeParams[ac].wmep_noackPolicy) 1798 flags &= ~IWI_DATA_FLAG_NEED_ACK; 1799 } 1800 1801 /* 1802 * This is only used in IBSS mode where the firmware expect an index 1803 * in a h/w table instead of a destination address. 1804 */ 1805 if (vap->iv_opmode == IEEE80211_M_IBSS) { 1806 if (!ismcast) { 1807 if (in->in_station == -1) { 1808 in->in_station = alloc_unr(sc->sc_unr); 1809 if (in->in_station == -1) { 1810 /* h/w table is full */ 1811 if_inc_counter(ni->ni_vap->iv_ifp, 1812 IFCOUNTER_OERRORS, 1); 1813 m_freem(m0); 1814 ieee80211_free_node(ni); 1815 return 0; 1816 } 1817 iwi_write_ibssnode(sc, 1818 ni->ni_macaddr, in->in_station); 1819 } 1820 staid = in->in_station; 1821 } else { 1822 /* 1823 * Multicast addresses have no associated node 1824 * so there will be no station entry. We reserve 1825 * entry 0 for one mcast address and use that. 1826 * If there are many being used this will be 1827 * expensive and we'll need to do a better job 1828 * but for now this handles the broadcast case. 1829 */ 1830 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) { 1831 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1); 1832 iwi_write_ibssnode(sc, sc->sc_mcast, 0); 1833 } 1834 staid = 0; 1835 } 1836 } else 1837 staid = 0; 1838 1839 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1840 k = ieee80211_crypto_encap(ni, m0); 1841 if (k == NULL) { 1842 m_freem(m0); 1843 return ENOBUFS; 1844 } 1845 1846 /* packet header may have moved, reset our local pointer */ 1847 wh = mtod(m0, struct ieee80211_frame *); 1848 } 1849 1850 if (ieee80211_radiotap_active_vap(vap)) { 1851 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1852 1853 tap->wt_flags = 0; 1854 1855 ieee80211_radiotap_tx(vap, m0); 1856 } 1857 1858 data = &txq->data[txq->cur]; 1859 desc = &txq->desc[txq->cur]; 1860 1861 /* save and trim IEEE802.11 header */ 1862 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh); 1863 m_adj(m0, hdrlen); 1864 1865 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, 1866 &nsegs, 0); 1867 if (error != 0 && error != EFBIG) { 1868 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1869 error); 1870 m_freem(m0); 1871 return error; 1872 } 1873 if (error != 0) { 1874 mnew = m_defrag(m0, M_NOWAIT); 1875 if (mnew == NULL) { 1876 device_printf(sc->sc_dev, 1877 "could not defragment mbuf\n"); 1878 m_freem(m0); 1879 return ENOBUFS; 1880 } 1881 m0 = mnew; 1882 1883 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, 1884 m0, segs, &nsegs, 0); 1885 if (error != 0) { 1886 device_printf(sc->sc_dev, 1887 "could not map mbuf (error %d)\n", error); 1888 m_freem(m0); 1889 return error; 1890 } 1891 } 1892 1893 data->m = m0; 1894 data->ni = ni; 1895 1896 desc->hdr.type = IWI_HDR_TYPE_DATA; 1897 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1898 desc->station = staid; 1899 desc->cmd = IWI_DATA_CMD_TX; 1900 desc->len = htole16(m0->m_pkthdr.len); 1901 desc->flags = flags; 1902 desc->xflags = xflags; 1903 1904#if 0 1905 if (vap->iv_flags & IEEE80211_F_PRIVACY) 1906 desc->wep_txkey = vap->iv_def_txkey; 1907 else 1908#endif 1909 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1910 1911 desc->nseg = htole32(nsegs); 1912 for (i = 0; i < nsegs; i++) { 1913 desc->seg_addr[i] = htole32(segs[i].ds_addr); 1914 desc->seg_len[i] = htole16(segs[i].ds_len); 1915 } 1916 1917 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1918 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1919 1920 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1921 ac, txq->cur, le16toh(desc->len), nsegs)); 1922 1923 txq->queued++; 1924 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; 1925 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1926 1927 return 0; 1928} 1929 1930static int 1931iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1932 const struct ieee80211_bpf_params *params) 1933{ 1934 /* no support; just discard */ 1935 m_freem(m); 1936 ieee80211_free_node(ni); 1937 return 0; 1938} 1939 1940static int 1941iwi_transmit(struct ieee80211com *ic, struct mbuf *m) 1942{ 1943 struct iwi_softc *sc = ic->ic_softc; 1944 int error; 1945 IWI_LOCK_DECL; 1946 1947 IWI_LOCK(sc); 1948 if (!sc->sc_running) { 1949 IWI_UNLOCK(sc); 1950 return (ENXIO); 1951 } 1952 error = mbufq_enqueue(&sc->sc_snd, m); 1953 if (error) { 1954 IWI_UNLOCK(sc); 1955 return (error); 1956 } 1957 iwi_start(sc); 1958 IWI_UNLOCK(sc); 1959 return (0); 1960} 1961 1962static void 1963iwi_start(struct iwi_softc *sc) 1964{ 1965 struct mbuf *m; 1966 struct ieee80211_node *ni; 1967 int ac; 1968 1969 IWI_LOCK_ASSERT(sc); 1970 1971 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1972 ac = M_WME_GETAC(m); 1973 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) { 1974 /* there is no place left in this ring; tail drop */ 1975 /* XXX tail drop */ 1976 mbufq_prepend(&sc->sc_snd, m); 1977 break; 1978 } 1979 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1980 if (iwi_tx_start(sc, m, ni, ac) != 0) { 1981 if_inc_counter(ni->ni_vap->iv_ifp, 1982 IFCOUNTER_OERRORS, 1); 1983 ieee80211_free_node(ni); 1984 break; 1985 } 1986 sc->sc_tx_timer = 5; 1987 } 1988} 1989 1990static void 1991iwi_watchdog(void *arg) 1992{ 1993 struct iwi_softc *sc = arg; 1994 struct ieee80211com *ic = &sc->sc_ic; 1995 1996 IWI_LOCK_ASSERT(sc); 1997 1998 if (sc->sc_tx_timer > 0) { 1999 if (--sc->sc_tx_timer == 0) { 2000 device_printf(sc->sc_dev, "device timeout\n"); 2001 counter_u64_add(ic->ic_oerrors, 1); 2002 ieee80211_runtask(ic, &sc->sc_restarttask); 2003 } 2004 } 2005 if (sc->sc_state_timer > 0) { 2006 if (--sc->sc_state_timer == 0) { 2007 device_printf(sc->sc_dev, 2008 "firmware stuck in state %d, resetting\n", 2009 sc->fw_state); 2010 if (sc->fw_state == IWI_FW_SCANNING) 2011 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps)); 2012 ieee80211_runtask(ic, &sc->sc_restarttask); 2013 sc->sc_state_timer = 3; 2014 } 2015 } 2016 if (sc->sc_busy_timer > 0) { 2017 if (--sc->sc_busy_timer == 0) { 2018 device_printf(sc->sc_dev, 2019 "firmware command timeout, resetting\n"); 2020 ieee80211_runtask(ic, &sc->sc_restarttask); 2021 } 2022 } 2023 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 2024} 2025 2026static void 2027iwi_parent(struct ieee80211com *ic) 2028{ 2029 struct iwi_softc *sc = ic->ic_softc; 2030 int startall = 0; 2031 IWI_LOCK_DECL; 2032 2033 IWI_LOCK(sc); 2034 if (ic->ic_nrunning > 0) { 2035 if (!sc->sc_running) { 2036 iwi_init_locked(sc); 2037 startall = 1; 2038 } 2039 } else if (sc->sc_running) 2040 iwi_stop_locked(sc); 2041 IWI_UNLOCK(sc); 2042 if (startall) 2043 ieee80211_start_all(ic); 2044} 2045 2046static int 2047iwi_ioctl(struct ieee80211com *ic, u_long cmd, void *data) 2048{ 2049 struct ifreq *ifr = data; 2050 struct iwi_softc *sc = ic->ic_softc; 2051 int error; 2052 IWI_LOCK_DECL; 2053 2054 IWI_LOCK(sc); 2055 switch (cmd) { 2056 case SIOCGIWISTATS: 2057 /* XXX validate permissions/memory/etc? */ 2058 error = copyout(&sc->sc_linkqual, ifr_data_get_ptr(ifr), 2059 sizeof(struct iwi_notif_link_quality)); 2060 break; 2061 case SIOCZIWISTATS: 2062 memset(&sc->sc_linkqual, 0, 2063 sizeof(struct iwi_notif_link_quality)); 2064 error = 0; 2065 break; 2066 default: 2067 error = ENOTTY; 2068 break; 2069 } 2070 IWI_UNLOCK(sc); 2071 2072 return (error); 2073} 2074 2075static void 2076iwi_stop_master(struct iwi_softc *sc) 2077{ 2078 uint32_t tmp; 2079 int ntries; 2080 2081 /* disable interrupts */ 2082 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 2083 2084 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 2085 for (ntries = 0; ntries < 5; ntries++) { 2086 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2087 break; 2088 DELAY(10); 2089 } 2090 if (ntries == 5) 2091 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2092 2093 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2094 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); 2095 2096 sc->flags &= ~IWI_FLAG_FW_INITED; 2097} 2098 2099static int 2100iwi_reset(struct iwi_softc *sc) 2101{ 2102 uint32_t tmp; 2103 int i, ntries; 2104 2105 iwi_stop_master(sc); 2106 2107 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2108 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2109 2110 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2111 2112 /* wait for clock stabilization */ 2113 for (ntries = 0; ntries < 1000; ntries++) { 2114 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2115 break; 2116 DELAY(200); 2117 } 2118 if (ntries == 1000) { 2119 device_printf(sc->sc_dev, 2120 "timeout waiting for clock stabilization\n"); 2121 return EIO; 2122 } 2123 2124 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2125 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); 2126 2127 DELAY(10); 2128 2129 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2130 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2131 2132 /* clear NIC memory */ 2133 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2134 for (i = 0; i < 0xc000; i++) 2135 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2136 2137 return 0; 2138} 2139 2140static const struct iwi_firmware_ohdr * 2141iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw) 2142{ 2143 const struct firmware *fp = fw->fp; 2144 const struct iwi_firmware_ohdr *hdr; 2145 2146 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) { 2147 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name); 2148 return NULL; 2149 } 2150 hdr = (const struct iwi_firmware_ohdr *)fp->data; 2151 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2152 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2153 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n", 2154 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2155 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR, 2156 IWI_FW_REQ_MINOR); 2157 return NULL; 2158 } 2159 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr); 2160 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr); 2161 fw->name = fp->name; 2162 return hdr; 2163} 2164 2165static const struct iwi_firmware_ohdr * 2166iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw) 2167{ 2168 const struct iwi_firmware_ohdr *hdr; 2169 2170 hdr = iwi_setup_ofw(sc, fw); 2171 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) { 2172 device_printf(sc->sc_dev, "%s is not a ucode image\n", 2173 fw->name); 2174 hdr = NULL; 2175 } 2176 return hdr; 2177} 2178 2179static void 2180iwi_getfw(struct iwi_fw *fw, const char *fwname, 2181 struct iwi_fw *uc, const char *ucname) 2182{ 2183 if (fw->fp == NULL) 2184 fw->fp = firmware_get(fwname); 2185 /* NB: pre-3.0 ucode is packaged separately */ 2186 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300) 2187 uc->fp = firmware_get(ucname); 2188} 2189 2190/* 2191 * Get the required firmware images if not already loaded. 2192 * Note that we hold firmware images so long as the device 2193 * is marked up in case we need to reload them on device init. 2194 * This is necessary because we re-init the device sometimes 2195 * from a context where we cannot read from the filesystem 2196 * (e.g. from the taskqueue thread when rfkill is re-enabled). 2197 * XXX return 0 on success, 1 on error. 2198 * 2199 * NB: the order of get'ing and put'ing images here is 2200 * intentional to support handling firmware images bundled 2201 * by operating mode and/or all together in one file with 2202 * the boot firmware as "master". 2203 */ 2204static int 2205iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode) 2206{ 2207 const struct iwi_firmware_hdr *hdr; 2208 const struct firmware *fp; 2209 2210 /* invalidate cached firmware on mode change */ 2211 if (sc->fw_mode != opmode) 2212 iwi_put_firmware(sc); 2213 2214 switch (opmode) { 2215 case IEEE80211_M_STA: 2216 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss"); 2217 break; 2218 case IEEE80211_M_IBSS: 2219 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss"); 2220 break; 2221 case IEEE80211_M_MONITOR: 2222 iwi_getfw(&sc->fw_fw, "iwi_monitor", 2223 &sc->fw_uc, "iwi_ucode_monitor"); 2224 break; 2225 default: 2226 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); 2227 return EINVAL; 2228 } 2229 fp = sc->fw_fw.fp; 2230 if (fp == NULL) { 2231 device_printf(sc->sc_dev, "could not load firmware\n"); 2232 goto bad; 2233 } 2234 if (fp->version < 300) { 2235 /* 2236 * Firmware prior to 3.0 was packaged as separate 2237 * boot, firmware, and ucode images. Verify the 2238 * ucode image was read in, retrieve the boot image 2239 * if needed, and check version stamps for consistency. 2240 * The version stamps in the data are also checked 2241 * above; this is a bit paranoid but is a cheap 2242 * safeguard against mis-packaging. 2243 */ 2244 if (sc->fw_uc.fp == NULL) { 2245 device_printf(sc->sc_dev, "could not load ucode\n"); 2246 goto bad; 2247 } 2248 if (sc->fw_boot.fp == NULL) { 2249 sc->fw_boot.fp = firmware_get("iwi_boot"); 2250 if (sc->fw_boot.fp == NULL) { 2251 device_printf(sc->sc_dev, 2252 "could not load boot firmware\n"); 2253 goto bad; 2254 } 2255 } 2256 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version || 2257 sc->fw_boot.fp->version != sc->fw_uc.fp->version) { 2258 device_printf(sc->sc_dev, 2259 "firmware version mismatch: " 2260 "'%s' is %d, '%s' is %d, '%s' is %d\n", 2261 sc->fw_boot.fp->name, sc->fw_boot.fp->version, 2262 sc->fw_uc.fp->name, sc->fw_uc.fp->version, 2263 sc->fw_fw.fp->name, sc->fw_fw.fp->version 2264 ); 2265 goto bad; 2266 } 2267 /* 2268 * Check and setup each image. 2269 */ 2270 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL || 2271 iwi_setup_ofw(sc, &sc->fw_boot) == NULL || 2272 iwi_setup_ofw(sc, &sc->fw_fw) == NULL) 2273 goto bad; 2274 } else { 2275 /* 2276 * Check and setup combined image. 2277 */ 2278 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) { 2279 device_printf(sc->sc_dev, "image '%s' too small\n", 2280 fp->name); 2281 goto bad; 2282 } 2283 hdr = (const struct iwi_firmware_hdr *)fp->data; 2284 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize) 2285 + le32toh(hdr->fsize)) { 2286 device_printf(sc->sc_dev, "image '%s' too small (2)\n", 2287 fp->name); 2288 goto bad; 2289 } 2290 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr); 2291 sc->fw_boot.size = le32toh(hdr->bsize); 2292 sc->fw_boot.name = fp->name; 2293 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size; 2294 sc->fw_uc.size = le32toh(hdr->usize); 2295 sc->fw_uc.name = fp->name; 2296 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size; 2297 sc->fw_fw.size = le32toh(hdr->fsize); 2298 sc->fw_fw.name = fp->name; 2299 } 2300#if 0 2301 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n", 2302 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size); 2303#endif 2304 2305 sc->fw_mode = opmode; 2306 return 0; 2307bad: 2308 iwi_put_firmware(sc); 2309 return 1; 2310} 2311 2312static void 2313iwi_put_fw(struct iwi_fw *fw) 2314{ 2315 if (fw->fp != NULL) { 2316 firmware_put(fw->fp, FIRMWARE_UNLOAD); 2317 fw->fp = NULL; 2318 } 2319 fw->data = NULL; 2320 fw->size = 0; 2321 fw->name = NULL; 2322} 2323 2324/* 2325 * Release any cached firmware images. 2326 */ 2327static void 2328iwi_put_firmware(struct iwi_softc *sc) 2329{ 2330 iwi_put_fw(&sc->fw_uc); 2331 iwi_put_fw(&sc->fw_fw); 2332 iwi_put_fw(&sc->fw_boot); 2333} 2334 2335static int 2336iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw) 2337{ 2338 uint32_t tmp; 2339 const uint16_t *w; 2340 const char *uc = fw->data; 2341 size_t size = fw->size; 2342 int i, ntries, error; 2343 2344 IWI_LOCK_ASSERT(sc); 2345 error = 0; 2346 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2347 IWI_RST_STOP_MASTER); 2348 for (ntries = 0; ntries < 5; ntries++) { 2349 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2350 break; 2351 DELAY(10); 2352 } 2353 if (ntries == 5) { 2354 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2355 error = EIO; 2356 goto fail; 2357 } 2358 2359 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2360 DELAY(5000); 2361 2362 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2363 tmp &= ~IWI_RST_PRINCETON_RESET; 2364 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2365 2366 DELAY(5000); 2367 MEM_WRITE_4(sc, 0x3000e0, 0); 2368 DELAY(1000); 2369 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1); 2370 DELAY(1000); 2371 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0); 2372 DELAY(1000); 2373 MEM_WRITE_1(sc, 0x200000, 0x00); 2374 MEM_WRITE_1(sc, 0x200000, 0x40); 2375 DELAY(1000); 2376 2377 /* write microcode into adapter memory */ 2378 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2) 2379 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2380 2381 MEM_WRITE_1(sc, 0x200000, 0x00); 2382 MEM_WRITE_1(sc, 0x200000, 0x80); 2383 2384 /* wait until we get an answer */ 2385 for (ntries = 0; ntries < 100; ntries++) { 2386 if (MEM_READ_1(sc, 0x200000) & 1) 2387 break; 2388 DELAY(100); 2389 } 2390 if (ntries == 100) { 2391 device_printf(sc->sc_dev, 2392 "timeout waiting for ucode to initialize\n"); 2393 error = EIO; 2394 goto fail; 2395 } 2396 2397 /* read the answer or the firmware will not initialize properly */ 2398 for (i = 0; i < 7; i++) 2399 MEM_READ_4(sc, 0x200004); 2400 2401 MEM_WRITE_1(sc, 0x200000, 0x00); 2402 2403fail: 2404 return error; 2405} 2406 2407/* macro to handle unaligned little endian data in firmware image */ 2408#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2409 2410static int 2411iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw) 2412{ 2413 u_char *p, *end; 2414 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; 2415 int ntries, error; 2416 2417 IWI_LOCK_ASSERT(sc); 2418 2419 /* copy firmware image to DMA memory */ 2420 memcpy(sc->fw_virtaddr, fw->data, fw->size); 2421 2422 /* make sure the adapter will get up-to-date values */ 2423 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE); 2424 2425 /* tell the adapter where the command blocks are stored */ 2426 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2427 2428 /* 2429 * Store command blocks into adapter's internal memory using register 2430 * indirections. The adapter will read the firmware image through DMA 2431 * using information stored in command blocks. 2432 */ 2433 src = sc->fw_physaddr; 2434 p = sc->fw_virtaddr; 2435 end = p + fw->size; 2436 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2437 2438 while (p < end) { 2439 dst = GETLE32(p); p += 4; src += 4; 2440 len = GETLE32(p); p += 4; src += 4; 2441 p += len; 2442 2443 while (len > 0) { 2444 mlen = min(len, IWI_CB_MAXDATALEN); 2445 2446 ctl = IWI_CB_DEFAULT_CTL | mlen; 2447 sum = ctl ^ src ^ dst; 2448 2449 /* write a command block */ 2450 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2451 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); 2452 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); 2453 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2454 2455 src += mlen; 2456 dst += mlen; 2457 len -= mlen; 2458 } 2459 } 2460 2461 /* write a fictive final command block (sentinel) */ 2462 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2463 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2464 2465 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2466 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); 2467 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2468 2469 /* tell the adapter to start processing command blocks */ 2470 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2471 2472 /* wait until the adapter reaches the sentinel */ 2473 for (ntries = 0; ntries < 400; ntries++) { 2474 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2475 break; 2476 DELAY(100); 2477 } 2478 /* sync dma, just in case */ 2479 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE); 2480 if (ntries == 400) { 2481 device_printf(sc->sc_dev, 2482 "timeout processing command blocks for %s firmware\n", 2483 fw->name); 2484 return EIO; 2485 } 2486 2487 /* we're done with command blocks processing */ 2488 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2489 2490 /* allow interrupts so we know when the firmware is ready */ 2491 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2492 2493 /* tell the adapter to initialize the firmware */ 2494 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2495 2496 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2497 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); 2498 2499 /* wait at most one second for firmware initialization to complete */ 2500 if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) { 2501 device_printf(sc->sc_dev, "timeout waiting for %s firmware " 2502 "initialization to complete\n", fw->name); 2503 } 2504 2505 return error; 2506} 2507 2508static int 2509iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap) 2510{ 2511 uint32_t data; 2512 2513 if (vap->iv_flags & IEEE80211_F_PMGTON) { 2514 /* XXX set more fine-grained operation */ 2515 data = htole32(IWI_POWER_MODE_MAX); 2516 } else 2517 data = htole32(IWI_POWER_MODE_CAM); 2518 2519 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2520 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data); 2521} 2522 2523static int 2524iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap) 2525{ 2526 struct iwi_wep_key wepkey; 2527 struct ieee80211_key *wk; 2528 int error, i; 2529 2530 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2531 wk = &vap->iv_nw_keys[i]; 2532 2533 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2534 wepkey.idx = i; 2535 wepkey.len = wk->wk_keylen; 2536 memset(wepkey.key, 0, sizeof wepkey.key); 2537 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2538 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2539 wepkey.len)); 2540 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2541 sizeof wepkey); 2542 if (error != 0) 2543 return error; 2544 } 2545 return 0; 2546} 2547 2548static int 2549iwi_config(struct iwi_softc *sc) 2550{ 2551 struct ieee80211com *ic = &sc->sc_ic; 2552 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2553 struct iwi_configuration config; 2554 struct iwi_rateset rs; 2555 struct iwi_txpower power; 2556 uint8_t *macaddr; 2557 uint32_t data; 2558 int error, i; 2559 2560 IWI_LOCK_ASSERT(sc); 2561 2562 macaddr = vap ? vap->iv_myaddr : ic->ic_macaddr; 2563 DPRINTF(("Setting MAC address to %6D\n", macaddr, ":")); 2564 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, macaddr, 2565 IEEE80211_ADDR_LEN); 2566 if (error != 0) 2567 return error; 2568 2569 memset(&config, 0, sizeof config); 2570 config.bluetooth_coexistence = sc->bluetooth; 2571 config.silence_threshold = 0x1e; 2572 config.antenna = sc->antenna; 2573 config.multicast_enabled = 1; 2574 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2575 config.disable_unicast_decryption = 1; 2576 config.disable_multicast_decryption = 1; 2577 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2578 config.allow_invalid_frames = 1; 2579 config.allow_beacon_and_probe_resp = 1; 2580 config.allow_mgt = 1; 2581 } 2582 DPRINTF(("Configuring adapter\n")); 2583 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2584 if (error != 0) 2585 return error; 2586 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2587 power.mode = IWI_MODE_11B; 2588 power.nchan = 11; 2589 for (i = 0; i < 11; i++) { 2590 power.chan[i].chan = i + 1; 2591 power.chan[i].power = IWI_TXPOWER_MAX; 2592 } 2593 DPRINTF(("Setting .11b channels tx power\n")); 2594 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2595 if (error != 0) 2596 return error; 2597 2598 power.mode = IWI_MODE_11G; 2599 DPRINTF(("Setting .11g channels tx power\n")); 2600 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2601 if (error != 0) 2602 return error; 2603 } 2604 2605 memset(&rs, 0, sizeof rs); 2606 rs.mode = IWI_MODE_11G; 2607 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2608 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2609 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2610 rs.nrates); 2611 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2612 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2613 if (error != 0) 2614 return error; 2615 2616 memset(&rs, 0, sizeof rs); 2617 rs.mode = IWI_MODE_11A; 2618 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2619 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2620 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2621 rs.nrates); 2622 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2623 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2624 if (error != 0) 2625 return error; 2626 2627 data = htole32(arc4random()); 2628 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2629 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data); 2630 if (error != 0) 2631 return error; 2632 2633 /* enable adapter */ 2634 DPRINTF(("Enabling adapter\n")); 2635 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0); 2636} 2637 2638static __inline void 2639set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type) 2640{ 2641 uint8_t *st = &scan->scan_type[ix / 2]; 2642 if (ix % 2) 2643 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0); 2644 else 2645 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4); 2646} 2647 2648static int 2649scan_type(const struct ieee80211_scan_state *ss, 2650 const struct ieee80211_channel *chan) 2651{ 2652 /* We can only set one essid for a directed scan */ 2653 if (ss->ss_nssid != 0) 2654 return IWI_SCAN_TYPE_BDIRECTED; 2655 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) && 2656 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) 2657 return IWI_SCAN_TYPE_BROADCAST; 2658 return IWI_SCAN_TYPE_PASSIVE; 2659} 2660 2661static __inline int 2662scan_band(const struct ieee80211_channel *c) 2663{ 2664 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ; 2665} 2666 2667static void 2668iwi_monitor_scan(void *arg, int npending) 2669{ 2670 struct iwi_softc *sc = arg; 2671 IWI_LOCK_DECL; 2672 2673 IWI_LOCK(sc); 2674 (void) iwi_scanchan(sc, 2000, 0); 2675 IWI_UNLOCK(sc); 2676} 2677 2678/* 2679 * Start a scan on the current channel or all channels. 2680 */ 2681static int 2682iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan) 2683{ 2684 struct ieee80211com *ic = &sc->sc_ic; 2685 struct ieee80211_channel *chan; 2686 struct ieee80211_scan_state *ss; 2687 struct iwi_scan_ext scan; 2688 int error = 0; 2689 2690 IWI_LOCK_ASSERT(sc); 2691 if (sc->fw_state == IWI_FW_SCANNING) { 2692 /* 2693 * This should not happen as we only trigger scan_next after 2694 * completion 2695 */ 2696 DPRINTF(("%s: called too early - still scanning\n", __func__)); 2697 return (EBUSY); 2698 } 2699 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING); 2700 2701 ss = ic->ic_scan; 2702 2703 memset(&scan, 0, sizeof scan); 2704 scan.full_scan_index = htole32(++sc->sc_scangen); 2705 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell); 2706 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 2707 /* 2708 * Use very short dwell times for when we send probe request 2709 * frames. Without this bg scans hang. Ideally this should 2710 * be handled with early-termination as done by net80211 but 2711 * that's not feasible (aborting a scan is problematic). 2712 */ 2713 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30); 2714 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30); 2715 } else { 2716 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell); 2717 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell); 2718 } 2719 2720 /* We can only set one essid for a directed scan */ 2721 if (ss->ss_nssid != 0) { 2722 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid, 2723 ss->ss_ssid[0].len); 2724 if (error) 2725 return (error); 2726 } 2727 2728 if (allchan) { 2729 int i, next, band, b, bstart; 2730 /* 2731 * Convert scan list to run-length encoded channel list 2732 * the firmware requires (preserving the order setup by 2733 * net80211). The first entry in each run specifies the 2734 * band and the count of items in the run. 2735 */ 2736 next = 0; /* next open slot */ 2737 bstart = 0; /* NB: not needed, silence compiler */ 2738 band = -1; /* NB: impossible value */ 2739 KASSERT(ss->ss_last > 0, ("no channels")); 2740 for (i = 0; i < ss->ss_last; i++) { 2741 chan = ss->ss_chans[i]; 2742 b = scan_band(chan); 2743 if (b != band) { 2744 if (band != -1) 2745 scan.channels[bstart] = 2746 (next - bstart) | band; 2747 /* NB: this allocates a slot for the run-len */ 2748 band = b, bstart = next++; 2749 } 2750 if (next >= IWI_SCAN_CHANNELS) { 2751 DPRINTF(("truncating scan list\n")); 2752 break; 2753 } 2754 scan.channels[next] = ieee80211_chan2ieee(ic, chan); 2755 set_scan_type(&scan, next, scan_type(ss, chan)); 2756 next++; 2757 } 2758 scan.channels[bstart] = (next - bstart) | band; 2759 } else { 2760 /* Scan the current channel only */ 2761 chan = ic->ic_curchan; 2762 scan.channels[0] = 1 | scan_band(chan); 2763 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2764 set_scan_type(&scan, 1, scan_type(ss, chan)); 2765 } 2766#ifdef IWI_DEBUG 2767 if (iwi_debug > 0) { 2768 static const char *scantype[8] = 2769 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" }; 2770 int i; 2771 printf("Scan request: index %u dwell %d/%d/%d\n" 2772 , le32toh(scan.full_scan_index) 2773 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE]) 2774 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST]) 2775 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED]) 2776 ); 2777 i = 0; 2778 do { 2779 int run = scan.channels[i]; 2780 if (run == 0) 2781 break; 2782 printf("Scan %d %s channels:", run & 0x3f, 2783 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz"); 2784 for (run &= 0x3f, i++; run > 0; run--, i++) { 2785 uint8_t type = scan.scan_type[i/2]; 2786 printf(" %u/%s", scan.channels[i], 2787 scantype[(i & 1 ? type : type>>4) & 7]); 2788 } 2789 printf("\n"); 2790 } while (i < IWI_SCAN_CHANNELS); 2791 } 2792#endif 2793 2794 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan)); 2795} 2796 2797static int 2798iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm) 2799{ 2800 struct iwi_sensitivity sens; 2801 2802 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm)); 2803 2804 memset(&sens, 0, sizeof sens); 2805 sens.rssi = htole16(rssi_dbm); 2806 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens); 2807} 2808 2809static int 2810iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap) 2811{ 2812 struct ieee80211com *ic = vap->iv_ic; 2813 struct ifnet *ifp = vap->iv_ifp; 2814 struct ieee80211_node *ni; 2815 struct iwi_configuration config; 2816 struct iwi_associate *assoc = &sc->assoc; 2817 struct iwi_rateset rs; 2818 uint16_t capinfo; 2819 uint32_t data; 2820 int error, mode; 2821 2822 IWI_LOCK_ASSERT(sc); 2823 2824 if (sc->flags & IWI_FLAG_ASSOCIATED) { 2825 DPRINTF(("Already associated\n")); 2826 return (-1); 2827 } 2828 2829 ni = ieee80211_ref_node(vap->iv_bss); 2830 2831 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING); 2832 error = 0; 2833 mode = 0; 2834 2835 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) 2836 mode = IWI_MODE_11A; 2837 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan)) 2838 mode = IWI_MODE_11G; 2839 if (IEEE80211_IS_CHAN_B(ic->ic_curchan)) 2840 mode = IWI_MODE_11B; 2841 2842 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2843 memset(&config, 0, sizeof config); 2844 config.bluetooth_coexistence = sc->bluetooth; 2845 config.antenna = sc->antenna; 2846 config.multicast_enabled = 1; 2847 if (mode == IWI_MODE_11G) 2848 config.use_protection = 1; 2849 config.answer_pbreq = 2850 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2851 config.disable_unicast_decryption = 1; 2852 config.disable_multicast_decryption = 1; 2853 DPRINTF(("Configuring adapter\n")); 2854 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2855 if (error != 0) 2856 goto done; 2857 } 2858 2859#ifdef IWI_DEBUG 2860 if (iwi_debug > 0) { 2861 printf("Setting ESSID to "); 2862 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2863 printf("\n"); 2864 } 2865#endif 2866 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); 2867 if (error != 0) 2868 goto done; 2869 2870 error = iwi_setpowermode(sc, vap); 2871 if (error != 0) 2872 goto done; 2873 2874 data = htole32(vap->iv_rtsthreshold); 2875 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2876 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2877 if (error != 0) 2878 goto done; 2879 2880 data = htole32(vap->iv_fragthreshold); 2881 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2882 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2883 if (error != 0) 2884 goto done; 2885 2886 /* the rate set has already been "negotiated" */ 2887 memset(&rs, 0, sizeof rs); 2888 rs.mode = mode; 2889 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2890 rs.nrates = ni->ni_rates.rs_nrates; 2891 if (rs.nrates > IWI_RATESET_SIZE) { 2892 DPRINTF(("Truncating negotiated rate set from %u\n", 2893 rs.nrates)); 2894 rs.nrates = IWI_RATESET_SIZE; 2895 } 2896 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2897 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2898 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 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); 2983done: 2984 ieee80211_free_node(ni); 2985 if (error) 2986 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 2987 2988 return (error); 2989} 2990 2991static void 2992iwi_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 3002static int 3003iwi_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 */ 3027static void 3028iwi_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 */ 3050static int 3051iwi_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 3079error: 3080 iwi_release_fw_dma(sc); 3081 return 1; 3082} 3083 3084static void 3085iwi_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; 3162fail: 3163 IWI_STATE_END(sc, IWI_FW_LOADING); 3164fail2: 3165 iwi_stop_locked(sc); 3166} 3167 3168static void 3169iwi_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 3183static void 3184iwi_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 3219static void 3220iwi_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 3229static void 3230iwi_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 */ 3241static int 3242iwi_getrfkill(struct iwi_softc *sc) 3243{ 3244 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 3245} 3246 3247static void 3248iwi_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 3259static void 3260iwi_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 3278static void 3279iwi_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 3295static int 3296iwi_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 3312static int 3313iwi_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 */ 3324static void 3325iwi_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 3357static __inline uint32_t 3358iwi_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 3364static uint32_t 3365iwi_read_event(struct iwi_softc *sc) 3366{ 3367 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT); 3368} 3369 3370static void 3371iwi_write_event(struct iwi_softc *sc, uint32_t v) 3372{ 3373 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v); 3374} 3375 3376static void 3377iwi_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 */ 3388static void 3389iwi_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 */ 3403static void 3404iwi_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 3416static void 3417iwi_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 3476static int 3477iwi_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 3498static void 3499iwi_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 3535static void 3536iwi_scan_start(struct ieee80211com *ic) 3537{ 3538 /* ignore */ 3539} 3540 3541static void 3542iwi_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 3550static void 3551iwi_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 3563static void 3564iwi_scan_mindwell(struct ieee80211_scan_state *ss) 3565{ 3566 /* NB: don't try to abort scan; wait for firmware to finish */ 3567} 3568 3569static void 3570iwi_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 3583static void 3584iwi_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 3596static void 3597iwi_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