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("$FreeBSD$"); 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_arp.h> 68#include <net/ethernet.h> 69#include <net/if_dl.h> 70#include <net/if_media.h> 71#include <net/if_types.h> 72 73#include <net80211/ieee80211_var.h> 74#include <net80211/ieee80211_radiotap.h> 75#include <net80211/ieee80211_input.h> 76#include <net80211/ieee80211_regdomain.h> 77 78#include <netinet/in.h> 79#include <netinet/in_systm.h> 80#include <netinet/in_var.h> 81#include <netinet/ip.h> 82#include <netinet/if_ether.h> 83 84#include <dev/iwi/if_iwireg.h> 85#include <dev/iwi/if_iwivar.h> 86 87#define IWI_DEBUG 88#ifdef IWI_DEBUG 89#define DPRINTF(x) do { if (iwi_debug > 0) printf x; } while (0) 90#define DPRINTFN(n, x) do { if (iwi_debug >= (n)) printf x; } while (0) 91int iwi_debug = 0; 92SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); 93 94static const char *iwi_fw_states[] = { 95 "IDLE", /* IWI_FW_IDLE */ 96 "LOADING", /* IWI_FW_LOADING */ 97 "ASSOCIATING", /* IWI_FW_ASSOCIATING */ 98 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */ 99 "SCANNING", /* IWI_FW_SCANNING */ 100}; 101#else 102#define DPRINTF(x) 103#define DPRINTFN(n, x) 104#endif 105 106MODULE_DEPEND(iwi, pci, 1, 1, 1); 107MODULE_DEPEND(iwi, wlan, 1, 1, 1); 108MODULE_DEPEND(iwi, firmware, 1, 1, 1); 109 110enum { 111 IWI_LED_TX, 112 IWI_LED_RX, 113 IWI_LED_POLL, 114}; 115 116struct iwi_ident { 117 uint16_t vendor; 118 uint16_t device; 119 const char *name; 120}; 121 122static const struct iwi_ident iwi_ident_table[] = { 123 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, 124 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, 125 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, 126 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, 127 128 { 0, 0, NULL } 129}; 130 131static struct ieee80211vap *iwi_vap_create(struct ieee80211com *, 132 const char name[IFNAMSIZ], int unit, enum ieee80211_opmode opmode, int flags, 133 const uint8_t bssid[IEEE80211_ADDR_LEN], 134 const uint8_t mac[IEEE80211_ADDR_LEN]); 135static void iwi_vap_delete(struct ieee80211vap *); 136static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 137static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 138 int); 139static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 140static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 141static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 142 int, bus_addr_t, bus_addr_t); 143static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 144static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 145static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 146 int); 147static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 148static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 149static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *, 150 const uint8_t [IEEE80211_ADDR_LEN]); 151static void iwi_node_free(struct ieee80211_node *); 152static void iwi_media_status(struct ifnet *, struct ifmediareq *); 153static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 154static void iwi_wme_init(struct iwi_softc *); 155static int iwi_wme_setparams(struct iwi_softc *, struct ieee80211com *); 156static void iwi_update_wme(void *, int); 157static int iwi_wme_update(struct ieee80211com *); 158static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 159static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 160 struct iwi_frame *); 161static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 162static void iwi_rx_intr(struct iwi_softc *); 163static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 164static void iwi_intr(void *); 165static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t); 166static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int); 167static int iwi_tx_start(struct ifnet *, struct mbuf *, 168 struct ieee80211_node *, int); 169static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *, 170 const struct ieee80211_bpf_params *); 171static void iwi_start_locked(struct ifnet *); 172static void iwi_start(struct ifnet *); 173static void iwi_watchdog(void *); 174static int iwi_ioctl(struct ifnet *, u_long, caddr_t); 175static void iwi_stop_master(struct iwi_softc *); 176static int iwi_reset(struct iwi_softc *); 177static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *); 178static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *); 179static void iwi_release_fw_dma(struct iwi_softc *sc); 180static int iwi_config(struct iwi_softc *); 181static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode); 182static void iwi_put_firmware(struct iwi_softc *); 183static void iwi_monitor_scan(void *, int); 184static int iwi_scanchan(struct iwi_softc *, unsigned long, int); 185static void iwi_scan_start(struct ieee80211com *); 186static void iwi_scan_end(struct ieee80211com *); 187static void iwi_set_channel(struct ieee80211com *); 188static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell); 189static void iwi_scan_mindwell(struct ieee80211_scan_state *); 190static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *); 191static void iwi_disassoc(void *, int); 192static int iwi_disassociate(struct iwi_softc *, int quiet); 193static void iwi_init_locked(struct iwi_softc *); 194static void iwi_init(void *); 195static int iwi_init_fw_dma(struct iwi_softc *, int); 196static void iwi_stop_locked(void *); 197static void iwi_stop(struct iwi_softc *); 198static void iwi_restart(void *, int); 199static int iwi_getrfkill(struct iwi_softc *); 200static void iwi_radio_on(void *, int); 201static void iwi_radio_off(void *, int); 202static void iwi_sysctlattach(struct iwi_softc *); 203static void iwi_led_event(struct iwi_softc *, int); 204static void iwi_ledattach(struct iwi_softc *); 205 206static int iwi_probe(device_t); 207static int iwi_attach(device_t); 208static int iwi_detach(device_t); 209static int iwi_shutdown(device_t); 210static int iwi_suspend(device_t); 211static int iwi_resume(device_t); 212 213static device_method_t iwi_methods[] = { 214 /* Device interface */ 215 DEVMETHOD(device_probe, iwi_probe), 216 DEVMETHOD(device_attach, iwi_attach), 217 DEVMETHOD(device_detach, iwi_detach), 218 DEVMETHOD(device_shutdown, iwi_shutdown), 219 DEVMETHOD(device_suspend, iwi_suspend), 220 DEVMETHOD(device_resume, iwi_resume), 221 222 { 0, 0 } 223}; 224 225static driver_t iwi_driver = { 226 "iwi", 227 iwi_methods, 228 sizeof (struct iwi_softc) 229}; 230 231static devclass_t iwi_devclass; 232 233DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, 0, 0); 234 235MODULE_VERSION(iwi, 1); 236 237static __inline uint8_t 238MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 239{ 240 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 241 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 242} 243 244static __inline uint32_t 245MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 246{ 247 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 248 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 249} 250 251static int 252iwi_probe(device_t dev) 253{ 254 const struct iwi_ident *ident; 255 256 for (ident = iwi_ident_table; ident->name != NULL; ident++) { 257 if (pci_get_vendor(dev) == ident->vendor && 258 pci_get_device(dev) == ident->device) { 259 device_set_desc(dev, ident->name); 260 return 0; 261 } 262 } 263 return ENXIO; 264} 265 266/* Base Address Register */ 267#define IWI_PCI_BAR0 0x10 268 269static int 270iwi_attach(device_t dev) 271{ 272 struct iwi_softc *sc = device_get_softc(dev); 273 struct ifnet *ifp; 274 struct ieee80211com *ic; 275 uint16_t val; 276 int i, error; 277 uint8_t bands; 278 uint8_t macaddr[IEEE80211_ADDR_LEN]; 279 280 sc->sc_dev = dev; 281 282 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 283 if (ifp == NULL) { 284 device_printf(dev, "can not if_alloc()\n"); 285 return ENXIO; 286 } 287 ic = ifp->if_l2com; 288 289 IWI_LOCK_INIT(sc); 290 291 sc->sc_unr = new_unrhdr(1, IWI_MAX_IBSSNODE-1, &sc->sc_mtx); 292 293 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc); 294 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc); 295 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc); 296 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc); 297 TASK_INIT(&sc->sc_wmetask, 0, iwi_update_wme, 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 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 304 device_printf(dev, "chip is in D%d power mode " 305 "-- setting to D0\n", pci_get_powerstate(dev)); 306 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 307 } 308 309 pci_write_config(dev, 0x41, 0, 1); 310 311 /* enable bus-mastering */ 312 pci_enable_busmaster(dev); 313 314 sc->mem_rid = IWI_PCI_BAR0; 315 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 316 RF_ACTIVE); 317 if (sc->mem == NULL) { 318 device_printf(dev, "could not allocate memory resource\n"); 319 goto fail; 320 } 321 322 sc->sc_st = rman_get_bustag(sc->mem); 323 sc->sc_sh = rman_get_bushandle(sc->mem); 324 325 sc->irq_rid = 0; 326 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 327 RF_ACTIVE | RF_SHAREABLE); 328 if (sc->irq == NULL) { 329 device_printf(dev, "could not allocate interrupt resource\n"); 330 goto fail; 331 } 332 333 if (iwi_reset(sc) != 0) { 334 device_printf(dev, "could not reset adapter\n"); 335 goto fail; 336 } 337 338 /* 339 * Allocate rings. 340 */ 341 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 342 device_printf(dev, "could not allocate Cmd ring\n"); 343 goto fail; 344 } 345 346 for (i = 0; i < 4; i++) { 347 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT, 348 IWI_CSR_TX1_RIDX + i * 4, 349 IWI_CSR_TX1_WIDX + i * 4); 350 if (error != 0) { 351 device_printf(dev, "could not allocate Tx ring %d\n", 352 i+i); 353 goto fail; 354 } 355 } 356 357 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 358 device_printf(dev, "could not allocate Rx ring\n"); 359 goto fail; 360 } 361 362 iwi_wme_init(sc); 363 364 ifp->if_softc = sc; 365 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 366 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 367 ifp->if_init = iwi_init; 368 ifp->if_ioctl = iwi_ioctl; 369 ifp->if_start = iwi_start; 370 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 371 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 372 IFQ_SET_READY(&ifp->if_snd); 373 374 ic->ic_ifp = ifp; 375 ic->ic_opmode = IEEE80211_M_STA; 376 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 377 378 /* set device capabilities */ 379 ic->ic_caps = 380 IEEE80211_C_STA /* station mode supported */ 381 | IEEE80211_C_IBSS /* IBSS mode supported */ 382 | IEEE80211_C_MONITOR /* monitor mode supported */ 383 | IEEE80211_C_PMGT /* power save supported */ 384 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 385 | IEEE80211_C_WPA /* 802.11i */ 386 | IEEE80211_C_WME /* 802.11e */ 387#if 0 388 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 389#endif 390 ; 391 392 /* read MAC address from EEPROM */ 393 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 394 macaddr[0] = val & 0xff; 395 macaddr[1] = val >> 8; 396 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 397 macaddr[2] = val & 0xff; 398 macaddr[3] = val >> 8; 399 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 400 macaddr[4] = val & 0xff; 401 macaddr[5] = val >> 8; 402 403 bands = 0; 404 setbit(&bands, IEEE80211_MODE_11B); 405 setbit(&bands, IEEE80211_MODE_11G); 406 if (pci_get_device(dev) >= 0x4223) 407 setbit(&bands, IEEE80211_MODE_11A); 408 ieee80211_init_channels(ic, NULL, &bands); 409 410 ieee80211_ifattach(ic, macaddr); 411 /* override default methods */ 412 ic->ic_node_alloc = iwi_node_alloc; 413 sc->sc_node_free = ic->ic_node_free; 414 ic->ic_node_free = iwi_node_free; 415 ic->ic_raw_xmit = iwi_raw_xmit; 416 ic->ic_scan_start = iwi_scan_start; 417 ic->ic_scan_end = iwi_scan_end; 418 ic->ic_set_channel = iwi_set_channel; 419 ic->ic_scan_curchan = iwi_scan_curchan; 420 ic->ic_scan_mindwell = iwi_scan_mindwell; 421 ic->ic_wme.wme_update = iwi_wme_update; 422 423 ic->ic_vap_create = iwi_vap_create; 424 ic->ic_vap_delete = iwi_vap_delete; 425 426 ieee80211_radiotap_attach(ic, 427 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 428 IWI_TX_RADIOTAP_PRESENT, 429 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 430 IWI_RX_RADIOTAP_PRESENT); 431 432 iwi_sysctlattach(sc); 433 iwi_ledattach(sc); 434 435 /* 436 * Hook our interrupt after all initialization is complete. 437 */ 438 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 439 NULL, iwi_intr, sc, &sc->sc_ih); 440 if (error != 0) { 441 device_printf(dev, "could not set up interrupt\n"); 442 goto fail; 443 } 444 445 if (bootverbose) 446 ieee80211_announce(ic); 447 448 return 0; 449fail: 450 /* XXX fix */ 451 iwi_detach(dev); 452 return ENXIO; 453} 454 455static int 456iwi_detach(device_t dev) 457{ 458 struct iwi_softc *sc = device_get_softc(dev); 459 struct ifnet *ifp = sc->sc_ifp; 460 struct ieee80211com *ic = ifp->if_l2com; 461 462 /* NB: do early to drain any pending tasks */ 463 ieee80211_draintask(ic, &sc->sc_radiontask); 464 ieee80211_draintask(ic, &sc->sc_radiofftask); 465 ieee80211_draintask(ic, &sc->sc_restarttask); 466 ieee80211_draintask(ic, &sc->sc_disassoctask); 467 ieee80211_draintask(ic, &sc->sc_monitortask); 468 469 iwi_stop(sc); 470 471 ieee80211_ifdetach(ic); 472 473 iwi_put_firmware(sc); 474 iwi_release_fw_dma(sc); 475 476 iwi_free_cmd_ring(sc, &sc->cmdq); 477 iwi_free_tx_ring(sc, &sc->txq[0]); 478 iwi_free_tx_ring(sc, &sc->txq[1]); 479 iwi_free_tx_ring(sc, &sc->txq[2]); 480 iwi_free_tx_ring(sc, &sc->txq[3]); 481 iwi_free_rx_ring(sc, &sc->rxq); 482 483 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 484 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 485 486 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 487 488 delete_unrhdr(sc->sc_unr); 489 490 IWI_LOCK_DESTROY(sc); 491 492 if_free(ifp); 493 494 return 0; 495} 496 497static struct ieee80211vap * 498iwi_vap_create(struct ieee80211com *ic, 499 const char name[IFNAMSIZ], int unit, enum ieee80211_opmode opmode, int flags, 500 const uint8_t bssid[IEEE80211_ADDR_LEN], 501 const uint8_t mac[IEEE80211_ADDR_LEN]) 502{ 503 struct ifnet *ifp = ic->ic_ifp; 504 struct iwi_softc *sc = ifp->if_softc; 505 struct iwi_vap *ivp; 506 struct ieee80211vap *vap; 507 int i; 508 509 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 510 return NULL; 511 /* 512 * Get firmware image (and possibly dma memory) on mode change. 513 */ 514 if (iwi_get_firmware(sc, opmode)) 515 return NULL; 516 /* allocate DMA memory for mapping firmware image */ 517 i = sc->fw_fw.size; 518 if (sc->fw_boot.size > i) 519 i = sc->fw_boot.size; 520 /* XXX do we dma the ucode as well ? */ 521 if (sc->fw_uc.size > i) 522 i = sc->fw_uc.size; 523 if (iwi_init_fw_dma(sc, i)) 524 return NULL; 525 526 ivp = (struct iwi_vap *) malloc(sizeof(struct iwi_vap), 527 M_80211_VAP, M_NOWAIT | M_ZERO); 528 if (ivp == NULL) 529 return NULL; 530 vap = &ivp->iwi_vap; 531 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 532 /* override the default, the setting comes from the linux driver */ 533 vap->iv_bmissthreshold = 24; 534 /* override with driver methods */ 535 ivp->iwi_newstate = vap->iv_newstate; 536 vap->iv_newstate = iwi_newstate; 537 538 /* complete setup */ 539 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status); 540 ic->ic_opmode = opmode; 541 return vap; 542} 543 544static void 545iwi_vap_delete(struct ieee80211vap *vap) 546{ 547 struct iwi_vap *ivp = IWI_VAP(vap); 548 549 ieee80211_vap_detach(vap); 550 free(ivp, M_80211_VAP); 551} 552 553static void 554iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 555{ 556 if (error != 0) 557 return; 558 559 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 560 561 *(bus_addr_t *)arg = segs[0].ds_addr; 562} 563 564static int 565iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) 566{ 567 int error; 568 569 ring->count = count; 570 ring->queued = 0; 571 ring->cur = ring->next = 0; 572 573 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 574 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 575 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 0, 576 NULL, NULL, &ring->desc_dmat); 577 if (error != 0) { 578 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 579 goto fail; 580 } 581 582 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 583 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 584 if (error != 0) { 585 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 586 goto fail; 587 } 588 589 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 590 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 591 if (error != 0) { 592 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 593 goto fail; 594 } 595 596 return 0; 597 598fail: iwi_free_cmd_ring(sc, ring); 599 return error; 600} 601 602static void 603iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 604{ 605 ring->queued = 0; 606 ring->cur = ring->next = 0; 607} 608 609static void 610iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 611{ 612 if (ring->desc != NULL) { 613 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 614 BUS_DMASYNC_POSTWRITE); 615 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 616 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 617 } 618 619 if (ring->desc_dmat != NULL) 620 bus_dma_tag_destroy(ring->desc_dmat); 621} 622 623static int 624iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, 625 bus_addr_t csr_ridx, bus_addr_t csr_widx) 626{ 627 int i, error; 628 629 ring->count = count; 630 ring->queued = 0; 631 ring->cur = ring->next = 0; 632 ring->csr_ridx = csr_ridx; 633 ring->csr_widx = csr_widx; 634 635 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 636 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 637 count * IWI_TX_DESC_SIZE, 1, count * IWI_TX_DESC_SIZE, 0, NULL, 638 NULL, &ring->desc_dmat); 639 if (error != 0) { 640 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 641 goto fail; 642 } 643 644 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 645 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 646 if (error != 0) { 647 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 648 goto fail; 649 } 650 651 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 652 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 653 if (error != 0) { 654 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 655 goto fail; 656 } 657 658 ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 659 M_NOWAIT | M_ZERO); 660 if (ring->data == NULL) { 661 device_printf(sc->sc_dev, "could not allocate soft data\n"); 662 error = ENOMEM; 663 goto fail; 664 } 665 666 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 667 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 668 IWI_MAX_NSEG, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 669 if (error != 0) { 670 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 671 goto fail; 672 } 673 674 for (i = 0; i < count; i++) { 675 error = bus_dmamap_create(ring->data_dmat, 0, 676 &ring->data[i].map); 677 if (error != 0) { 678 device_printf(sc->sc_dev, "could not create DMA map\n"); 679 goto fail; 680 } 681 } 682 683 return 0; 684 685fail: iwi_free_tx_ring(sc, ring); 686 return error; 687} 688 689static void 690iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 691{ 692 struct iwi_tx_data *data; 693 int i; 694 695 for (i = 0; i < ring->count; i++) { 696 data = &ring->data[i]; 697 698 if (data->m != NULL) { 699 bus_dmamap_sync(ring->data_dmat, data->map, 700 BUS_DMASYNC_POSTWRITE); 701 bus_dmamap_unload(ring->data_dmat, data->map); 702 m_freem(data->m); 703 data->m = NULL; 704 } 705 706 if (data->ni != NULL) { 707 ieee80211_free_node(data->ni); 708 data->ni = NULL; 709 } 710 } 711 712 ring->queued = 0; 713 ring->cur = ring->next = 0; 714} 715 716static void 717iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 718{ 719 struct iwi_tx_data *data; 720 int i; 721 722 if (ring->desc != NULL) { 723 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 724 BUS_DMASYNC_POSTWRITE); 725 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 726 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 727 } 728 729 if (ring->desc_dmat != NULL) 730 bus_dma_tag_destroy(ring->desc_dmat); 731 732 if (ring->data != NULL) { 733 for (i = 0; i < ring->count; i++) { 734 data = &ring->data[i]; 735 736 if (data->m != NULL) { 737 bus_dmamap_sync(ring->data_dmat, data->map, 738 BUS_DMASYNC_POSTWRITE); 739 bus_dmamap_unload(ring->data_dmat, data->map); 740 m_freem(data->m); 741 } 742 743 if (data->ni != NULL) 744 ieee80211_free_node(data->ni); 745 746 if (data->map != NULL) 747 bus_dmamap_destroy(ring->data_dmat, data->map); 748 } 749 750 free(ring->data, M_DEVBUF); 751 } 752 753 if (ring->data_dmat != NULL) 754 bus_dma_tag_destroy(ring->data_dmat); 755} 756 757static int 758iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 759{ 760 struct iwi_rx_data *data; 761 int i, error; 762 763 ring->count = count; 764 ring->cur = 0; 765 766 ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 767 M_NOWAIT | M_ZERO); 768 if (ring->data == NULL) { 769 device_printf(sc->sc_dev, "could not allocate soft data\n"); 770 error = ENOMEM; 771 goto fail; 772 } 773 774 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 775 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 776 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 777 if (error != 0) { 778 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 779 goto fail; 780 } 781 782 for (i = 0; i < count; i++) { 783 data = &ring->data[i]; 784 785 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 786 if (error != 0) { 787 device_printf(sc->sc_dev, "could not create DMA map\n"); 788 goto fail; 789 } 790 791 data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 792 if (data->m == NULL) { 793 device_printf(sc->sc_dev, 794 "could not allocate rx mbuf\n"); 795 error = ENOMEM; 796 goto fail; 797 } 798 799 error = bus_dmamap_load(ring->data_dmat, data->map, 800 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 801 &data->physaddr, 0); 802 if (error != 0) { 803 device_printf(sc->sc_dev, 804 "could not load rx buf DMA map"); 805 goto fail; 806 } 807 808 data->reg = IWI_CSR_RX_BASE + i * 4; 809 } 810 811 return 0; 812 813fail: iwi_free_rx_ring(sc, ring); 814 return error; 815} 816 817static void 818iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 819{ 820 ring->cur = 0; 821} 822 823static void 824iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 825{ 826 struct iwi_rx_data *data; 827 int i; 828 829 if (ring->data != NULL) { 830 for (i = 0; i < ring->count; i++) { 831 data = &ring->data[i]; 832 833 if (data->m != NULL) { 834 bus_dmamap_sync(ring->data_dmat, data->map, 835 BUS_DMASYNC_POSTREAD); 836 bus_dmamap_unload(ring->data_dmat, data->map); 837 m_freem(data->m); 838 } 839 840 if (data->map != NULL) 841 bus_dmamap_destroy(ring->data_dmat, data->map); 842 } 843 844 free(ring->data, M_DEVBUF); 845 } 846 847 if (ring->data_dmat != NULL) 848 bus_dma_tag_destroy(ring->data_dmat); 849} 850 851static int 852iwi_shutdown(device_t dev) 853{ 854 struct iwi_softc *sc = device_get_softc(dev); 855 856 iwi_stop(sc); 857 iwi_put_firmware(sc); /* ??? XXX */ 858 859 return 0; 860} 861 862static int 863iwi_suspend(device_t dev) 864{ 865 struct iwi_softc *sc = device_get_softc(dev); 866 867 iwi_stop(sc); 868 869 return 0; 870} 871 872static int 873iwi_resume(device_t dev) 874{ 875 struct iwi_softc *sc = device_get_softc(dev); 876 struct ifnet *ifp = sc->sc_ifp; 877 878 pci_write_config(dev, 0x41, 0, 1); 879 880 if (ifp->if_flags & IFF_UP) 881 iwi_init(sc); 882 883 return 0; 884} 885 886static struct ieee80211_node * 887iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 888{ 889 struct iwi_node *in; 890 891 in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); 892 if (in == NULL) 893 return NULL; 894 /* XXX assign sta table entry for adhoc */ 895 in->in_station = -1; 896 897 return &in->in_node; 898} 899 900static void 901iwi_node_free(struct ieee80211_node *ni) 902{ 903 struct ieee80211com *ic = ni->ni_ic; 904 struct iwi_softc *sc = ic->ic_ifp->if_softc; 905 struct iwi_node *in = (struct iwi_node *)ni; 906 907 if (in->in_station != -1) { 908 DPRINTF(("%s mac %6D station %u\n", __func__, 909 ni->ni_macaddr, ":", in->in_station)); 910 free_unr(sc->sc_unr, in->in_station); 911 } 912 913 sc->sc_node_free(ni); 914} 915 916/* 917 * Convert h/w rate code to IEEE rate code. 918 */ 919static int 920iwi_cvtrate(int iwirate) 921{ 922 switch (iwirate) { 923 case IWI_RATE_DS1: return 2; 924 case IWI_RATE_DS2: return 4; 925 case IWI_RATE_DS5: return 11; 926 case IWI_RATE_DS11: return 22; 927 case IWI_RATE_OFDM6: return 12; 928 case IWI_RATE_OFDM9: return 18; 929 case IWI_RATE_OFDM12: return 24; 930 case IWI_RATE_OFDM18: return 36; 931 case IWI_RATE_OFDM24: return 48; 932 case IWI_RATE_OFDM36: return 72; 933 case IWI_RATE_OFDM48: return 96; 934 case IWI_RATE_OFDM54: return 108; 935 } 936 return 0; 937} 938 939/* 940 * The firmware automatically adapts the transmit speed. We report its current 941 * value here. 942 */ 943static void 944iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 945{ 946 struct ieee80211vap *vap = ifp->if_softc; 947 struct ieee80211com *ic = vap->iv_ic; 948 struct iwi_softc *sc = ic->ic_ifp->if_softc; 949 950 /* read current transmission rate from adapter */ 951 vap->iv_bss->ni_txrate = 952 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 953 ieee80211_media_status(ifp, imr); 954} 955 956static int 957iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 958{ 959 struct iwi_vap *ivp = IWI_VAP(vap); 960 struct ieee80211com *ic = vap->iv_ic; 961 struct ifnet *ifp = ic->ic_ifp; 962 struct iwi_softc *sc = ifp->if_softc; 963 IWI_LOCK_DECL; 964 965 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 966 ieee80211_state_name[vap->iv_state], 967 ieee80211_state_name[nstate], sc->flags)); 968 969 IEEE80211_UNLOCK(ic); 970 IWI_LOCK(sc); 971 switch (nstate) { 972 case IEEE80211_S_INIT: 973 /* 974 * NB: don't try to do this if iwi_stop_master has 975 * shutdown the firmware and disabled interrupts. 976 */ 977 if (vap->iv_state == IEEE80211_S_RUN && 978 (sc->flags & IWI_FLAG_FW_INITED)) 979 iwi_disassociate(sc, 0); 980 break; 981 case IEEE80211_S_AUTH: 982 iwi_auth_and_assoc(sc, vap); 983 break; 984 case IEEE80211_S_RUN: 985 if (vap->iv_opmode == IEEE80211_M_IBSS && 986 vap->iv_state == IEEE80211_S_SCAN) { 987 /* 988 * XXX when joining an ibss network we are called 989 * with a SCAN -> RUN transition on scan complete. 990 * Use that to call iwi_auth_and_assoc. On completing 991 * the join we are then called again with an 992 * AUTH -> RUN transition and we want to do nothing. 993 * This is all totally bogus and needs to be redone. 994 */ 995 iwi_auth_and_assoc(sc, vap); 996 } else if (vap->iv_opmode == IEEE80211_M_MONITOR) 997 ieee80211_runtask(ic, &sc->sc_monitortask); 998 break; 999 case IEEE80211_S_ASSOC: 1000 /* 1001 * If we are transitioning from AUTH then just wait 1002 * for the ASSOC status to come back from the firmware. 1003 * Otherwise we need to issue the association request. 1004 */ 1005 if (vap->iv_state == IEEE80211_S_AUTH) 1006 break; 1007 iwi_auth_and_assoc(sc, vap); 1008 break; 1009 default: 1010 break; 1011 } 1012 IWI_UNLOCK(sc); 1013 IEEE80211_LOCK(ic); 1014 return ivp->iwi_newstate(vap, nstate, arg); 1015} 1016 1017/* 1018 * WME parameters coming from IEEE 802.11e specification. These values are 1019 * already declared in ieee80211_proto.c, but they are static so they can't 1020 * be reused here. 1021 */ 1022static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 1023 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ 1024 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ 1025 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ 1026 { 0, 2, 3, 4, 102 } /* WME_AC_VO */ 1027}; 1028 1029static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 1030 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ 1031 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ 1032 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ 1033 { 0, 2, 2, 3, 47 } /* WME_AC_VO */ 1034}; 1035#define IWI_EXP2(v) htole16((1 << (v)) - 1) 1036#define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1037 1038static void 1039iwi_wme_init(struct iwi_softc *sc) 1040{ 1041 const struct wmeParams *wmep; 1042 int ac; 1043 1044 memset(sc->wme, 0, sizeof sc->wme); 1045 for (ac = 0; ac < WME_NUM_AC; ac++) { 1046 /* set WME values for CCK modulation */ 1047 wmep = &iwi_wme_cck_params[ac]; 1048 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn; 1049 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1050 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1051 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1052 sc->wme[1].acm[ac] = wmep->wmep_acm; 1053 1054 /* set WME values for OFDM modulation */ 1055 wmep = &iwi_wme_ofdm_params[ac]; 1056 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn; 1057 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1058 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1059 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1060 sc->wme[2].acm[ac] = wmep->wmep_acm; 1061 } 1062} 1063 1064static int 1065iwi_wme_setparams(struct iwi_softc *sc, struct ieee80211com *ic) 1066{ 1067 const struct wmeParams *wmep; 1068 int ac; 1069 1070 for (ac = 0; ac < WME_NUM_AC; ac++) { 1071 /* set WME values for current operating mode */ 1072 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1073 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn; 1074 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1075 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1076 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1077 sc->wme[0].acm[ac] = wmep->wmep_acm; 1078 } 1079 1080 DPRINTF(("Setting WME parameters\n")); 1081 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme); 1082} 1083#undef IWI_USEC 1084#undef IWI_EXP2 1085 1086static void 1087iwi_update_wme(void *arg, int npending) 1088{ 1089 struct ieee80211com *ic = arg; 1090 struct iwi_softc *sc = ic->ic_ifp->if_softc; 1091 IWI_LOCK_DECL; 1092 1093 IWI_LOCK(sc); 1094 (void) iwi_wme_setparams(sc, ic); 1095 IWI_UNLOCK(sc); 1096} 1097 1098static int 1099iwi_wme_update(struct ieee80211com *ic) 1100{ 1101 struct iwi_softc *sc = ic->ic_ifp->if_softc; 1102 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1103 1104 /* 1105 * We may be called to update the WME parameters in 1106 * the adapter at various places. If we're already 1107 * associated then initiate the request immediately; 1108 * otherwise we assume the params will get sent down 1109 * to the adapter as part of the work iwi_auth_and_assoc 1110 * does. 1111 */ 1112 if (vap->iv_state == IEEE80211_S_RUN) 1113 ieee80211_runtask(ic, &sc->sc_wmetask); 1114 return (0); 1115} 1116 1117static int 1118iwi_wme_setie(struct iwi_softc *sc) 1119{ 1120 struct ieee80211_wme_info wme; 1121 1122 memset(&wme, 0, sizeof wme); 1123 wme.wme_id = IEEE80211_ELEMID_VENDOR; 1124 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 1125 wme.wme_oui[0] = 0x00; 1126 wme.wme_oui[1] = 0x50; 1127 wme.wme_oui[2] = 0xf2; 1128 wme.wme_type = WME_OUI_TYPE; 1129 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 1130 wme.wme_version = WME_VERSION; 1131 wme.wme_info = 0; 1132 1133 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 1134 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme); 1135} 1136 1137/* 1138 * Read 16 bits at address 'addr' from the serial EEPROM. 1139 */ 1140static uint16_t 1141iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1142{ 1143 uint32_t tmp; 1144 uint16_t val; 1145 int n; 1146 1147 /* clock C once before the first command */ 1148 IWI_EEPROM_CTL(sc, 0); 1149 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1150 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1151 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1152 1153 /* write start bit (1) */ 1154 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1155 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1156 1157 /* write READ opcode (10) */ 1158 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1159 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1160 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1161 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1162 1163 /* write address A7-A0 */ 1164 for (n = 7; n >= 0; n--) { 1165 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1166 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1167 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1168 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1169 } 1170 1171 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1172 1173 /* read data Q15-Q0 */ 1174 val = 0; 1175 for (n = 15; n >= 0; n--) { 1176 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1177 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1178 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1179 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1180 } 1181 1182 IWI_EEPROM_CTL(sc, 0); 1183 1184 /* clear Chip Select and clock C */ 1185 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1186 IWI_EEPROM_CTL(sc, 0); 1187 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1188 1189 return val; 1190} 1191 1192static void 1193iwi_setcurchan(struct iwi_softc *sc, int chan) 1194{ 1195 struct ifnet *ifp = sc->sc_ifp; 1196 struct ieee80211com *ic = ifp->if_l2com; 1197 1198 sc->curchan = chan; 1199 ieee80211_radiotap_chan_change(ic); 1200} 1201 1202static void 1203iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1204 struct iwi_frame *frame) 1205{ 1206 struct ifnet *ifp = sc->sc_ifp; 1207 struct ieee80211com *ic = ifp->if_l2com; 1208 struct mbuf *mnew, *m; 1209 struct ieee80211_node *ni; 1210 int type, error, framelen; 1211 int8_t rssi, nf; 1212 IWI_LOCK_DECL; 1213 1214 framelen = le16toh(frame->len); 1215 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) { 1216 /* 1217 * XXX >MCLBYTES is bogus as it means the h/w dma'd 1218 * out of bounds; need to figure out how to limit 1219 * frame size in the firmware 1220 */ 1221 /* XXX stat */ 1222 DPRINTFN(1, 1223 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1224 le16toh(frame->len), frame->chan, frame->rssi, 1225 frame->rssi_dbm)); 1226 return; 1227 } 1228 1229 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1230 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm)); 1231 1232 if (frame->chan != sc->curchan) 1233 iwi_setcurchan(sc, frame->chan); 1234 1235 /* 1236 * Try to allocate a new mbuf for this ring element and load it before 1237 * processing the current mbuf. If the ring element cannot be loaded, 1238 * drop the received packet and reuse the old mbuf. In the unlikely 1239 * case that the old mbuf can't be reloaded either, explicitly panic. 1240 */ 1241 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1242 if (mnew == NULL) { 1243 ifp->if_ierrors++; 1244 return; 1245 } 1246 1247 bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1248 1249 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1250 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, 1251 0); 1252 if (error != 0) { 1253 m_freem(mnew); 1254 1255 /* try to reload the old mbuf */ 1256 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1257 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 1258 &data->physaddr, 0); 1259 if (error != 0) { 1260 /* very unlikely that it will fail... */ 1261 panic("%s: could not load old rx mbuf", 1262 device_get_name(sc->sc_dev)); 1263 } 1264 ifp->if_ierrors++; 1265 return; 1266 } 1267 1268 /* 1269 * New mbuf successfully loaded, update Rx ring and continue 1270 * processing. 1271 */ 1272 m = data->m; 1273 data->m = mnew; 1274 CSR_WRITE_4(sc, data->reg, data->physaddr); 1275 1276 /* finalize mbuf */ 1277 m->m_pkthdr.rcvif = ifp; 1278 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1279 sizeof (struct iwi_frame) + framelen; 1280 1281 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1282 1283 rssi = frame->rssi_dbm; 1284 nf = -95; 1285 if (ieee80211_radiotap_active(ic)) { 1286 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1287 1288 tap->wr_flags = 0; 1289 tap->wr_antsignal = rssi; 1290 tap->wr_antnoise = nf; 1291 tap->wr_rate = iwi_cvtrate(frame->rate); 1292 tap->wr_antenna = frame->antenna; 1293 } 1294 IWI_UNLOCK(sc); 1295 1296 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1297 if (ni != NULL) { 1298 type = ieee80211_input(ni, m, rssi, nf); 1299 ieee80211_free_node(ni); 1300 } else 1301 type = ieee80211_input_all(ic, m, rssi, nf); 1302 1303 IWI_LOCK(sc); 1304 if (sc->sc_softled) { 1305 /* 1306 * Blink for any data frame. Otherwise do a 1307 * heartbeat-style blink when idle. The latter 1308 * is mainly for station mode where we depend on 1309 * periodic beacon frames to trigger the poll event. 1310 */ 1311 if (type == IEEE80211_FC0_TYPE_DATA) { 1312 sc->sc_rxrate = frame->rate; 1313 iwi_led_event(sc, IWI_LED_RX); 1314 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle) 1315 iwi_led_event(sc, IWI_LED_POLL); 1316 } 1317} 1318 1319/* 1320 * Check for an association response frame to see if QoS 1321 * has been negotiated. We parse just enough to figure 1322 * out if we're supposed to use QoS. The proper solution 1323 * is to pass the frame up so ieee80211_input can do the 1324 * work but that's made hard by how things currently are 1325 * done in the driver. 1326 */ 1327static void 1328iwi_checkforqos(struct ieee80211vap *vap, 1329 const struct ieee80211_frame *wh, int len) 1330{ 1331#define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 1332 const uint8_t *frm, *efrm, *wme; 1333 struct ieee80211_node *ni; 1334 uint16_t capinfo, status, associd; 1335 1336 /* NB: +8 for capinfo, status, associd, and first ie */ 1337 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) || 1338 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP) 1339 return; 1340 /* 1341 * asresp frame format 1342 * [2] capability information 1343 * [2] status 1344 * [2] association ID 1345 * [tlv] supported rates 1346 * [tlv] extended supported rates 1347 * [tlv] WME 1348 */ 1349 frm = (const uint8_t *)&wh[1]; 1350 efrm = ((const uint8_t *) wh) + len; 1351 1352 capinfo = le16toh(*(const uint16_t *)frm); 1353 frm += 2; 1354 status = le16toh(*(const uint16_t *)frm); 1355 frm += 2; 1356 associd = le16toh(*(const uint16_t *)frm); 1357 frm += 2; 1358 1359 wme = NULL; 1360 while (frm < efrm) { 1361 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1], return); 1362 switch (*frm) { 1363 case IEEE80211_ELEMID_VENDOR: 1364 if (iswmeoui(frm)) 1365 wme = frm; 1366 break; 1367 } 1368 frm += frm[1] + 2; 1369 } 1370 1371 ni = vap->iv_bss; 1372 ni->ni_capinfo = capinfo; 1373 ni->ni_associd = associd & 0x3fff; 1374 if (wme != NULL) 1375 ni->ni_flags |= IEEE80211_NODE_QOS; 1376 else 1377 ni->ni_flags &= ~IEEE80211_NODE_QOS; 1378#undef SUBTYPE 1379} 1380 1381/* 1382 * Task queue callbacks for iwi_notification_intr used to avoid LOR's. 1383 */ 1384 1385static void 1386iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1387{ 1388 struct ifnet *ifp = sc->sc_ifp; 1389 struct ieee80211com *ic = ifp->if_l2com; 1390 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1391 struct iwi_notif_scan_channel *chan; 1392 struct iwi_notif_scan_complete *scan; 1393 struct iwi_notif_authentication *auth; 1394 struct iwi_notif_association *assoc; 1395 struct iwi_notif_beacon_state *beacon; 1396 1397 switch (notif->type) { 1398 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1399 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1400 1401 DPRINTFN(3, ("Scan of channel %u complete (%u)\n", 1402 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan)); 1403 1404 /* Reset the timer, the scan is still going */ 1405 sc->sc_state_timer = 3; 1406 break; 1407 1408 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1409 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1410 1411 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1412 scan->status)); 1413 1414 IWI_STATE_END(sc, IWI_FW_SCANNING); 1415 1416 /* 1417 * Monitor mode works by doing a passive scan to set 1418 * the channel and enable rx. Because we don't want 1419 * to abort a scan lest the firmware crash we scan 1420 * for a short period of time and automatically restart 1421 * the scan when notified the sweep has completed. 1422 */ 1423 if (vap->iv_opmode == IEEE80211_M_MONITOR) { 1424 ieee80211_runtask(ic, &sc->sc_monitortask); 1425 break; 1426 } 1427 1428 if (scan->status == IWI_SCAN_COMPLETED) { 1429 /* NB: don't need to defer, net80211 does it for us */ 1430 ieee80211_scan_next(vap); 1431 } 1432 break; 1433 1434 case IWI_NOTIF_TYPE_AUTHENTICATION: 1435 auth = (struct iwi_notif_authentication *)(notif + 1); 1436 switch (auth->state) { 1437 case IWI_AUTH_SUCCESS: 1438 DPRINTFN(2, ("Authentication succeeeded\n")); 1439 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1); 1440 break; 1441 case IWI_AUTH_FAIL: 1442 /* 1443 * These are delivered as an unsolicited deauth 1444 * (e.g. due to inactivity) or in response to an 1445 * associate request. 1446 */ 1447 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1448 if (vap->iv_state != IEEE80211_S_RUN) { 1449 DPRINTFN(2, ("Authentication failed\n")); 1450 vap->iv_stats.is_rx_auth_fail++; 1451 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1452 } else { 1453 DPRINTFN(2, ("Deauthenticated\n")); 1454 vap->iv_stats.is_rx_deauth++; 1455 } 1456 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1457 break; 1458 case IWI_AUTH_SENT_1: 1459 case IWI_AUTH_RECV_2: 1460 case IWI_AUTH_SEQ1_PASS: 1461 break; 1462 case IWI_AUTH_SEQ1_FAIL: 1463 DPRINTFN(2, ("Initial authentication handshake failed; " 1464 "you probably need shared key\n")); 1465 vap->iv_stats.is_rx_auth_fail++; 1466 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1467 /* XXX retry shared key when in auto */ 1468 break; 1469 default: 1470 device_printf(sc->sc_dev, 1471 "unknown authentication state %u\n", auth->state); 1472 break; 1473 } 1474 break; 1475 1476 case IWI_NOTIF_TYPE_ASSOCIATION: 1477 assoc = (struct iwi_notif_association *)(notif + 1); 1478 switch (assoc->state) { 1479 case IWI_AUTH_SUCCESS: 1480 /* re-association, do nothing */ 1481 break; 1482 case IWI_ASSOC_SUCCESS: 1483 DPRINTFN(2, ("Association succeeded\n")); 1484 sc->flags |= IWI_FLAG_ASSOCIATED; 1485 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1486 iwi_checkforqos(vap, 1487 (const struct ieee80211_frame *)(assoc+1), 1488 le16toh(notif->len) - sizeof(*assoc) - 1); 1489 ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 1490 break; 1491 case IWI_ASSOC_INIT: 1492 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1493 switch (sc->fw_state) { 1494 case IWI_FW_ASSOCIATING: 1495 DPRINTFN(2, ("Association failed\n")); 1496 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1497 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1498 break; 1499 1500 case IWI_FW_DISASSOCIATING: 1501 DPRINTFN(2, ("Dissassociated\n")); 1502 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING); 1503 vap->iv_stats.is_rx_disassoc++; 1504 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1505 break; 1506 } 1507 break; 1508 default: 1509 device_printf(sc->sc_dev, 1510 "unknown association state %u\n", assoc->state); 1511 break; 1512 } 1513 break; 1514 1515 case IWI_NOTIF_TYPE_BEACON: 1516 /* XXX check struct length */ 1517 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1518 1519 DPRINTFN(5, ("Beacon state (%u, %u)\n", 1520 beacon->state, le32toh(beacon->number))); 1521 1522 if (beacon->state == IWI_BEACON_MISS) { 1523 /* 1524 * The firmware notifies us of every beacon miss 1525 * so we need to track the count against the 1526 * configured threshold before notifying the 1527 * 802.11 layer. 1528 * XXX try to roam, drop assoc only on much higher count 1529 */ 1530 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) { 1531 DPRINTF(("Beacon miss: %u >= %u\n", 1532 le32toh(beacon->number), 1533 vap->iv_bmissthreshold)); 1534 vap->iv_stats.is_beacon_miss++; 1535 /* 1536 * It's pointless to notify the 802.11 layer 1537 * as it'll try to send a probe request (which 1538 * we'll discard) and then timeout and drop us 1539 * into scan state. Instead tell the firmware 1540 * to disassociate and then on completion we'll 1541 * kick the state machine to scan. 1542 */ 1543 ieee80211_runtask(ic, &sc->sc_disassoctask); 1544 } 1545 } 1546 break; 1547 1548 case IWI_NOTIF_TYPE_CALIBRATION: 1549 case IWI_NOTIF_TYPE_NOISE: 1550 case IWI_NOTIF_TYPE_LINK_QUALITY: 1551 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1552 break; 1553 1554 default: 1555 DPRINTF(("unknown notification type %u flags 0x%x len %u\n", 1556 notif->type, notif->flags, le16toh(notif->len))); 1557 break; 1558 } 1559} 1560 1561static void 1562iwi_rx_intr(struct iwi_softc *sc) 1563{ 1564 struct iwi_rx_data *data; 1565 struct iwi_hdr *hdr; 1566 uint32_t hw; 1567 1568 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1569 1570 for (; sc->rxq.cur != hw;) { 1571 data = &sc->rxq.data[sc->rxq.cur]; 1572 1573 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1574 BUS_DMASYNC_POSTREAD); 1575 1576 hdr = mtod(data->m, struct iwi_hdr *); 1577 1578 switch (hdr->type) { 1579 case IWI_HDR_TYPE_FRAME: 1580 iwi_frame_intr(sc, data, sc->rxq.cur, 1581 (struct iwi_frame *)(hdr + 1)); 1582 break; 1583 1584 case IWI_HDR_TYPE_NOTIF: 1585 iwi_notification_intr(sc, 1586 (struct iwi_notif *)(hdr + 1)); 1587 break; 1588 1589 default: 1590 device_printf(sc->sc_dev, "unknown hdr type %u\n", 1591 hdr->type); 1592 } 1593 1594 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1595 1596 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; 1597 } 1598 1599 /* tell the firmware what we have processed */ 1600 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; 1601 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1602} 1603 1604static void 1605iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1606{ 1607 struct ifnet *ifp = sc->sc_ifp; 1608 struct iwi_tx_data *data; 1609 uint32_t hw; 1610 1611 hw = CSR_READ_4(sc, txq->csr_ridx); 1612 1613 for (; txq->next != hw;) { 1614 data = &txq->data[txq->next]; 1615 1616 bus_dmamap_sync(txq->data_dmat, data->map, 1617 BUS_DMASYNC_POSTWRITE); 1618 bus_dmamap_unload(txq->data_dmat, data->map); 1619 if (data->m->m_flags & M_TXCB) 1620 ieee80211_process_callback(data->ni, data->m, 0/*XXX*/); 1621 m_freem(data->m); 1622 data->m = NULL; 1623 ieee80211_free_node(data->ni); 1624 data->ni = NULL; 1625 1626 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1627 1628 ifp->if_opackets++; 1629 1630 txq->queued--; 1631 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; 1632 } 1633 1634 sc->sc_tx_timer = 0; 1635 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1636 1637 if (sc->sc_softled) 1638 iwi_led_event(sc, IWI_LED_TX); 1639 1640 iwi_start_locked(ifp); 1641} 1642 1643static void 1644iwi_fatal_error_intr(struct iwi_softc *sc) 1645{ 1646 struct ifnet *ifp = sc->sc_ifp; 1647 struct ieee80211com *ic = ifp->if_l2com; 1648 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1649 1650 device_printf(sc->sc_dev, "firmware error\n"); 1651 if (vap != NULL) 1652 ieee80211_cancel_scan(vap); 1653 ieee80211_runtask(ic, &sc->sc_restarttask); 1654 1655 sc->flags &= ~IWI_FLAG_BUSY; 1656 sc->sc_busy_timer = 0; 1657 wakeup(sc); 1658} 1659 1660static void 1661iwi_radio_off_intr(struct iwi_softc *sc) 1662{ 1663 struct ifnet *ifp = sc->sc_ifp; 1664 struct ieee80211com *ic = ifp->if_l2com; 1665 1666 ieee80211_runtask(ic, &sc->sc_radiofftask); 1667} 1668 1669static void 1670iwi_intr(void *arg) 1671{ 1672 struct iwi_softc *sc = arg; 1673 uint32_t r; 1674 IWI_LOCK_DECL; 1675 1676 IWI_LOCK(sc); 1677 1678#if !defined(__HAIKU__) 1679 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { 1680 IWI_UNLOCK(sc); 1681 return; 1682 } 1683#else 1684 r = atomic_get((int32 *)&sc->sc_intr_status); 1685#endif 1686 1687 /* acknowledge interrupts */ 1688 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1689 1690 if (r & IWI_INTR_FATAL_ERROR) { 1691 iwi_fatal_error_intr(sc); 1692 goto done; 1693 } 1694 1695 if (r & IWI_INTR_FW_INITED) { 1696 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1697 wakeup(sc); 1698 } 1699 1700 if (r & IWI_INTR_RADIO_OFF) 1701 iwi_radio_off_intr(sc); 1702 1703 if (r & IWI_INTR_CMD_DONE) { 1704 sc->flags &= ~IWI_FLAG_BUSY; 1705 sc->sc_busy_timer = 0; 1706 wakeup(sc); 1707 } 1708 1709 if (r & IWI_INTR_TX1_DONE) 1710 iwi_tx_intr(sc, &sc->txq[0]); 1711 1712 if (r & IWI_INTR_TX2_DONE) 1713 iwi_tx_intr(sc, &sc->txq[1]); 1714 1715 if (r & IWI_INTR_TX3_DONE) 1716 iwi_tx_intr(sc, &sc->txq[2]); 1717 1718 if (r & IWI_INTR_TX4_DONE) 1719 iwi_tx_intr(sc, &sc->txq[3]); 1720 1721 if (r & IWI_INTR_RX_DONE) 1722 iwi_rx_intr(sc); 1723 1724 if (r & IWI_INTR_PARITY_ERROR) { 1725 /* XXX rate-limit */ 1726 device_printf(sc->sc_dev, "parity error\n"); 1727 } 1728done: 1729 IWI_UNLOCK(sc); 1730} 1731 1732static int 1733iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len) 1734{ 1735 struct iwi_cmd_desc *desc; 1736 1737 IWI_LOCK_ASSERT(sc); 1738 1739 if (sc->flags & IWI_FLAG_BUSY) { 1740 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", 1741 __func__, type); 1742 return EAGAIN; 1743 } 1744 sc->flags |= IWI_FLAG_BUSY; 1745 sc->sc_busy_timer = 2; 1746 1747 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1748 1749 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1750 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1751 desc->type = type; 1752 desc->len = len; 1753 memcpy(desc->data, data, len); 1754 1755 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, 1756 BUS_DMASYNC_PREWRITE); 1757 1758 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, 1759 type, len)); 1760 1761 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; 1762 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1763 1764 return msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz); 1765} 1766 1767static void 1768iwi_write_ibssnode(struct iwi_softc *sc, 1769 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry) 1770{ 1771 struct iwi_ibssnode node; 1772 1773 /* write node information into NIC memory */ 1774 memset(&node, 0, sizeof node); 1775 IEEE80211_ADDR_COPY(node.bssid, addr); 1776 1777 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry)); 1778 1779 CSR_WRITE_REGION_1(sc, 1780 IWI_CSR_NODE_BASE + entry * sizeof node, 1781 (uint8_t *)&node, sizeof node); 1782} 1783 1784static int 1785iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, 1786 int ac) 1787{ 1788 struct iwi_softc *sc = ifp->if_softc; 1789 struct ieee80211vap *vap = ni->ni_vap; 1790 struct ieee80211com *ic = ni->ni_ic; 1791 struct iwi_node *in = (struct iwi_node *)ni; 1792 const struct ieee80211_frame *wh; 1793 struct ieee80211_key *k; 1794 const struct chanAccParams *cap; 1795 struct iwi_tx_ring *txq = &sc->txq[ac]; 1796 struct iwi_tx_data *data; 1797 struct iwi_tx_desc *desc; 1798 struct mbuf *mnew; 1799 bus_dma_segment_t segs[IWI_MAX_NSEG]; 1800 int error, nsegs, hdrlen, i; 1801 int ismcast, flags, xflags, staid; 1802 1803 IWI_LOCK_ASSERT(sc); 1804 wh = mtod(m0, const struct ieee80211_frame *); 1805 /* NB: only data frames use this path */ 1806 hdrlen = ieee80211_hdrsize(wh); 1807 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1808 flags = xflags = 0; 1809 1810 if (!ismcast) 1811 flags |= IWI_DATA_FLAG_NEED_ACK; 1812 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE) 1813 flags |= IWI_DATA_FLAG_SHPREAMBLE; 1814 if (IEEE80211_QOS_HAS_SEQ(wh)) { 1815 xflags |= IWI_DATA_XFLAG_QOS; 1816 cap = &ic->ic_wme.wme_chanParams; 1817 if (!cap->cap_wmeParams[ac].wmep_noackPolicy) 1818 flags &= ~IWI_DATA_FLAG_NEED_ACK; 1819 } 1820 1821 /* 1822 * This is only used in IBSS mode where the firmware expect an index 1823 * in a h/w table instead of a destination address. 1824 */ 1825 if (vap->iv_opmode == IEEE80211_M_IBSS) { 1826 if (!ismcast) { 1827 if (in->in_station == -1) { 1828 in->in_station = alloc_unr(sc->sc_unr); 1829 if (in->in_station == -1) { 1830 /* h/w table is full */ 1831 m_freem(m0); 1832 ieee80211_free_node(ni); 1833 ifp->if_oerrors++; 1834 return 0; 1835 } 1836 iwi_write_ibssnode(sc, 1837 ni->ni_macaddr, in->in_station); 1838 } 1839 staid = in->in_station; 1840 } else { 1841 /* 1842 * Multicast addresses have no associated node 1843 * so there will be no station entry. We reserve 1844 * entry 0 for one mcast address and use that. 1845 * If there are many being used this will be 1846 * expensive and we'll need to do a better job 1847 * but for now this handles the broadcast case. 1848 */ 1849 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) { 1850 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1); 1851 iwi_write_ibssnode(sc, sc->sc_mcast, 0); 1852 } 1853 staid = 0; 1854 } 1855 } else 1856 staid = 0; 1857 1858 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1859 k = ieee80211_crypto_encap(ni, m0); 1860 if (k == NULL) { 1861 m_freem(m0); 1862 return ENOBUFS; 1863 } 1864 1865 /* packet header may have moved, reset our local pointer */ 1866 wh = mtod(m0, struct ieee80211_frame *); 1867 } 1868 1869 if (ieee80211_radiotap_active_vap(vap)) { 1870 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1871 1872 tap->wt_flags = 0; 1873 1874 ieee80211_radiotap_tx(vap, m0); 1875 } 1876 1877 data = &txq->data[txq->cur]; 1878 desc = &txq->desc[txq->cur]; 1879 1880 /* save and trim IEEE802.11 header */ 1881 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh); 1882 m_adj(m0, hdrlen); 1883 1884 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, 1885 &nsegs, 0); 1886 if (error != 0 && error != EFBIG) { 1887 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1888 error); 1889 m_freem(m0); 1890 return error; 1891 } 1892 if (error != 0) { 1893 mnew = m_defrag(m0, M_DONTWAIT); 1894 if (mnew == NULL) { 1895 device_printf(sc->sc_dev, 1896 "could not defragment mbuf\n"); 1897 m_freem(m0); 1898 return ENOBUFS; 1899 } 1900 m0 = mnew; 1901 1902 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, 1903 m0, segs, &nsegs, 0); 1904 if (error != 0) { 1905 device_printf(sc->sc_dev, 1906 "could not map mbuf (error %d)\n", error); 1907 m_freem(m0); 1908 return error; 1909 } 1910 } 1911 1912 data->m = m0; 1913 data->ni = ni; 1914 1915 desc->hdr.type = IWI_HDR_TYPE_DATA; 1916 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1917 desc->station = staid; 1918 desc->cmd = IWI_DATA_CMD_TX; 1919 desc->len = htole16(m0->m_pkthdr.len); 1920 desc->flags = flags; 1921 desc->xflags = xflags; 1922 1923#if 0 1924 if (vap->iv_flags & IEEE80211_F_PRIVACY) 1925 desc->wep_txkey = vap->iv_def_txkey; 1926 else 1927#endif 1928 desc->flags |= IWI_DATA_FLAG_NO_WEP; 1929 1930 desc->nseg = htole32(nsegs); 1931 for (i = 0; i < nsegs; i++) { 1932 desc->seg_addr[i] = htole32(segs[i].ds_addr); 1933 desc->seg_len[i] = htole16(segs[i].ds_len); 1934 } 1935 1936 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1937 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1938 1939 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1940 ac, txq->cur, le16toh(desc->len), nsegs)); 1941 1942 txq->queued++; 1943 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; 1944 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1945 1946 return 0; 1947} 1948 1949static int 1950iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1951 const struct ieee80211_bpf_params *params) 1952{ 1953 /* no support; just discard */ 1954 m_freem(m); 1955 ieee80211_free_node(ni); 1956 return 0; 1957} 1958 1959static void 1960iwi_start_locked(struct ifnet *ifp) 1961{ 1962 struct iwi_softc *sc = ifp->if_softc; 1963 struct mbuf *m; 1964 struct ieee80211_node *ni; 1965 int ac; 1966 1967 IWI_LOCK_ASSERT(sc); 1968 1969 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1970 return; 1971 1972 for (;;) { 1973 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1974 if (m == NULL) 1975 break; 1976 ac = M_WME_GETAC(m); 1977 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) { 1978 /* there is no place left in this ring; tail drop */ 1979 /* XXX tail drop */ 1980 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1981 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1982 break; 1983 } 1984 1985 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1986 if (iwi_tx_start(ifp, m, ni, ac) != 0) { 1987 ieee80211_free_node(ni); 1988 ifp->if_oerrors++; 1989 break; 1990 } 1991 1992 sc->sc_tx_timer = 5; 1993 } 1994} 1995 1996static void 1997iwi_start(struct ifnet *ifp) 1998{ 1999 struct iwi_softc *sc = ifp->if_softc; 2000 IWI_LOCK_DECL; 2001 2002 IWI_LOCK(sc); 2003 iwi_start_locked(ifp); 2004 IWI_UNLOCK(sc); 2005} 2006 2007static void 2008iwi_watchdog(void *arg) 2009{ 2010 struct iwi_softc *sc = arg; 2011 struct ifnet *ifp = sc->sc_ifp; 2012 struct ieee80211com *ic = ifp->if_l2com; 2013 2014 IWI_LOCK_ASSERT(sc); 2015 2016 if (sc->sc_tx_timer > 0) { 2017 if (--sc->sc_tx_timer == 0) { 2018 if_printf(ifp, "device timeout\n"); 2019 ifp->if_oerrors++; 2020 ieee80211_runtask(ic, &sc->sc_restarttask); 2021 } 2022 } 2023 if (sc->sc_state_timer > 0) { 2024 if (--sc->sc_state_timer == 0) { 2025 if_printf(ifp, "firmware stuck in state %d, resetting\n", 2026 sc->fw_state); 2027 if (sc->fw_state == IWI_FW_SCANNING) { 2028 struct ieee80211com *ic = ifp->if_l2com; 2029 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps)); 2030 } 2031 ieee80211_runtask(ic, &sc->sc_restarttask); 2032 sc->sc_state_timer = 3; 2033 } 2034 } 2035 if (sc->sc_busy_timer > 0) { 2036 if (--sc->sc_busy_timer == 0) { 2037 if_printf(ifp, "firmware command timeout, resetting\n"); 2038 ieee80211_runtask(ic, &sc->sc_restarttask); 2039 } 2040 } 2041 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 2042} 2043 2044static int 2045iwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 2046{ 2047 struct iwi_softc *sc = ifp->if_softc; 2048 struct ieee80211com *ic = ifp->if_l2com; 2049 struct ifreq *ifr = (struct ifreq *) data; 2050 int error = 0, startall = 0; 2051 IWI_LOCK_DECL; 2052 2053 switch (cmd) { 2054 case SIOCSIFFLAGS: 2055 IWI_LOCK(sc); 2056 if (ifp->if_flags & IFF_UP) { 2057 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2058 iwi_init_locked(sc); 2059 startall = 1; 2060 } 2061 } else { 2062 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2063 iwi_stop_locked(sc); 2064 } 2065 IWI_UNLOCK(sc); 2066 if (startall) 2067 ieee80211_start_all(ic); 2068 break; 2069 case SIOCGIFMEDIA: 2070 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 2071 break; 2072 case SIOCGIFADDR: 2073 error = ether_ioctl(ifp, cmd, data); 2074 break; 2075 default: 2076 error = EINVAL; 2077 break; 2078 } 2079 return error; 2080} 2081 2082static void 2083iwi_stop_master(struct iwi_softc *sc) 2084{ 2085 uint32_t tmp; 2086 int ntries; 2087 2088 /* disable interrupts */ 2089 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 2090 2091 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 2092 for (ntries = 0; ntries < 5; ntries++) { 2093 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2094 break; 2095 DELAY(10); 2096 } 2097 if (ntries == 5) 2098 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2099 2100 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2101 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); 2102 2103 sc->flags &= ~IWI_FLAG_FW_INITED; 2104} 2105 2106static int 2107iwi_reset(struct iwi_softc *sc) 2108{ 2109 uint32_t tmp; 2110 int i, ntries; 2111 2112 iwi_stop_master(sc); 2113 2114 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2115 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2116 2117 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2118 2119 /* wait for clock stabilization */ 2120 for (ntries = 0; ntries < 1000; ntries++) { 2121 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2122 break; 2123 DELAY(200); 2124 } 2125 if (ntries == 1000) { 2126 device_printf(sc->sc_dev, 2127 "timeout waiting for clock stabilization\n"); 2128 return EIO; 2129 } 2130 2131 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2132 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); 2133 2134 DELAY(10); 2135 2136 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2137 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2138 2139 /* clear NIC memory */ 2140 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2141 for (i = 0; i < 0xc000; i++) 2142 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2143 2144 return 0; 2145} 2146 2147static const struct iwi_firmware_ohdr * 2148iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw) 2149{ 2150 const struct firmware *fp = fw->fp; 2151 const struct iwi_firmware_ohdr *hdr; 2152 2153 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) { 2154 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name); 2155 return NULL; 2156 } 2157 hdr = (const struct iwi_firmware_ohdr *)fp->data; 2158 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2159 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2160 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n", 2161 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2162 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR, 2163 IWI_FW_REQ_MINOR); 2164 return NULL; 2165 } 2166 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr); 2167 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr); 2168 fw->name = fp->name; 2169 return hdr; 2170} 2171 2172static const struct iwi_firmware_ohdr * 2173iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw) 2174{ 2175 const struct iwi_firmware_ohdr *hdr; 2176 2177 hdr = iwi_setup_ofw(sc, fw); 2178 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) { 2179 device_printf(sc->sc_dev, "%s is not a ucode image\n", 2180 fw->name); 2181 hdr = NULL; 2182 } 2183 return hdr; 2184} 2185 2186static void 2187iwi_getfw(struct iwi_fw *fw, const char *fwname, 2188 struct iwi_fw *uc, const char *ucname) 2189{ 2190 if (fw->fp == NULL) 2191 fw->fp = firmware_get(fwname); 2192 /* NB: pre-3.0 ucode is packaged separately */ 2193 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300) 2194 uc->fp = firmware_get(ucname); 2195} 2196 2197/* 2198 * Get the required firmware images if not already loaded. 2199 * Note that we hold firmware images so long as the device 2200 * is marked up in case we need to reload them on device init. 2201 * This is necessary because we re-init the device sometimes 2202 * from a context where we cannot read from the filesystem 2203 * (e.g. from the taskqueue thread when rfkill is re-enabled). 2204 * XXX return 0 on success, 1 on error. 2205 * 2206 * NB: the order of get'ing and put'ing images here is 2207 * intentional to support handling firmware images bundled 2208 * by operating mode and/or all together in one file with 2209 * the boot firmware as "master". 2210 */ 2211static int 2212iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode) 2213{ 2214 const struct iwi_firmware_hdr *hdr; 2215 const struct firmware *fp; 2216 2217 /* invalidate cached firmware on mode change */ 2218 if (sc->fw_mode != opmode) 2219 iwi_put_firmware(sc); 2220 2221 switch (opmode) { 2222 case IEEE80211_M_STA: 2223 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss"); 2224 break; 2225 case IEEE80211_M_IBSS: 2226 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss"); 2227 break; 2228 case IEEE80211_M_MONITOR: 2229 iwi_getfw(&sc->fw_fw, "iwi_monitor", 2230 &sc->fw_uc, "iwi_ucode_monitor"); 2231 break; 2232 default: 2233 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); 2234 return EINVAL; 2235 } 2236 fp = sc->fw_fw.fp; 2237 if (fp == NULL) { 2238 device_printf(sc->sc_dev, "could not load firmware\n"); 2239 goto bad; 2240 } 2241 if (fp->version < 300) { 2242 /* 2243 * Firmware prior to 3.0 was packaged as separate 2244 * boot, firmware, and ucode images. Verify the 2245 * ucode image was read in, retrieve the boot image 2246 * if needed, and check version stamps for consistency. 2247 * The version stamps in the data are also checked 2248 * above; this is a bit paranoid but is a cheap 2249 * safeguard against mis-packaging. 2250 */ 2251 if (sc->fw_uc.fp == NULL) { 2252 device_printf(sc->sc_dev, "could not load ucode\n"); 2253 goto bad; 2254 } 2255 if (sc->fw_boot.fp == NULL) { 2256 sc->fw_boot.fp = firmware_get("iwi_boot"); 2257 if (sc->fw_boot.fp == NULL) { 2258 device_printf(sc->sc_dev, 2259 "could not load boot firmware\n"); 2260 goto bad; 2261 } 2262 } 2263 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version || 2264 sc->fw_boot.fp->version != sc->fw_uc.fp->version) { 2265 device_printf(sc->sc_dev, 2266 "firmware version mismatch: " 2267 "'%s' is %d, '%s' is %d, '%s' is %d\n", 2268 sc->fw_boot.fp->name, sc->fw_boot.fp->version, 2269 sc->fw_uc.fp->name, sc->fw_uc.fp->version, 2270 sc->fw_fw.fp->name, sc->fw_fw.fp->version 2271 ); 2272 goto bad; 2273 } 2274 /* 2275 * Check and setup each image. 2276 */ 2277 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL || 2278 iwi_setup_ofw(sc, &sc->fw_boot) == NULL || 2279 iwi_setup_ofw(sc, &sc->fw_fw) == NULL) 2280 goto bad; 2281 } else { 2282 /* 2283 * Check and setup combined image. 2284 */ 2285 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) { 2286 device_printf(sc->sc_dev, "image '%s' too small\n", 2287 fp->name); 2288 goto bad; 2289 } 2290 hdr = (const struct iwi_firmware_hdr *)fp->data; 2291 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize) 2292 + le32toh(hdr->fsize)) { 2293 device_printf(sc->sc_dev, "image '%s' too small (2)\n", 2294 fp->name); 2295 goto bad; 2296 } 2297 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr); 2298 sc->fw_boot.size = le32toh(hdr->bsize); 2299 sc->fw_boot.name = fp->name; 2300 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size; 2301 sc->fw_uc.size = le32toh(hdr->usize); 2302 sc->fw_uc.name = fp->name; 2303 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size; 2304 sc->fw_fw.size = le32toh(hdr->fsize); 2305 sc->fw_fw.name = fp->name; 2306 } 2307#if 0 2308 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n", 2309 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size); 2310#endif 2311 2312 sc->fw_mode = opmode; 2313 return 0; 2314bad: 2315 iwi_put_firmware(sc); 2316 return 1; 2317} 2318 2319static void 2320iwi_put_fw(struct iwi_fw *fw) 2321{ 2322 if (fw->fp != NULL) { 2323 firmware_put(fw->fp, FIRMWARE_UNLOAD); 2324 fw->fp = NULL; 2325 } 2326 fw->data = NULL; 2327 fw->size = 0; 2328 fw->name = NULL; 2329} 2330 2331/* 2332 * Release any cached firmware images. 2333 */ 2334static void 2335iwi_put_firmware(struct iwi_softc *sc) 2336{ 2337 iwi_put_fw(&sc->fw_uc); 2338 iwi_put_fw(&sc->fw_fw); 2339 iwi_put_fw(&sc->fw_boot); 2340} 2341 2342static int 2343iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw) 2344{ 2345 uint32_t tmp; 2346 const uint16_t *w; 2347 const char *uc = fw->data; 2348 size_t size = fw->size; 2349 int i, ntries, error; 2350 2351 IWI_LOCK_ASSERT(sc); 2352 error = 0; 2353 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2354 IWI_RST_STOP_MASTER); 2355 for (ntries = 0; ntries < 5; ntries++) { 2356 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2357 break; 2358 DELAY(10); 2359 } 2360 if (ntries == 5) { 2361 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2362 error = EIO; 2363 goto fail; 2364 } 2365 2366 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2367 DELAY(5000); 2368 2369 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2370 tmp &= ~IWI_RST_PRINCETON_RESET; 2371 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2372 2373 DELAY(5000); 2374 MEM_WRITE_4(sc, 0x3000e0, 0); 2375 DELAY(1000); 2376 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1); 2377 DELAY(1000); 2378 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0); 2379 DELAY(1000); 2380 MEM_WRITE_1(sc, 0x200000, 0x00); 2381 MEM_WRITE_1(sc, 0x200000, 0x40); 2382 DELAY(1000); 2383 2384 /* write microcode into adapter memory */ 2385 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2) 2386 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2387 2388 MEM_WRITE_1(sc, 0x200000, 0x00); 2389 MEM_WRITE_1(sc, 0x200000, 0x80); 2390 2391 /* wait until we get an answer */ 2392 for (ntries = 0; ntries < 100; ntries++) { 2393 if (MEM_READ_1(sc, 0x200000) & 1) 2394 break; 2395 DELAY(100); 2396 } 2397 if (ntries == 100) { 2398 device_printf(sc->sc_dev, 2399 "timeout waiting for ucode to initialize\n"); 2400 error = EIO; 2401 goto fail; 2402 } 2403 2404 /* read the answer or the firmware will not initialize properly */ 2405 for (i = 0; i < 7; i++) 2406 MEM_READ_4(sc, 0x200004); 2407 2408 MEM_WRITE_1(sc, 0x200000, 0x00); 2409 2410fail: 2411 return error; 2412} 2413 2414/* macro to handle unaligned little endian data in firmware image */ 2415#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2416 2417static int 2418iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw) 2419{ 2420 u_char *p, *end; 2421 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; 2422 int ntries, error; 2423 2424 IWI_LOCK_ASSERT(sc); 2425 2426 /* copy firmware image to DMA memory */ 2427 memcpy(sc->fw_virtaddr, fw->data, fw->size); 2428 2429 /* make sure the adapter will get up-to-date values */ 2430 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE); 2431 2432 /* tell the adapter where the command blocks are stored */ 2433 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2434 2435 /* 2436 * Store command blocks into adapter's internal memory using register 2437 * indirections. The adapter will read the firmware image through DMA 2438 * using information stored in command blocks. 2439 */ 2440 src = sc->fw_physaddr; 2441 p = sc->fw_virtaddr; 2442 end = p + fw->size; 2443 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2444 2445 while (p < end) { 2446 dst = GETLE32(p); p += 4; src += 4; 2447 len = GETLE32(p); p += 4; src += 4; 2448 p += len; 2449 2450 while (len > 0) { 2451 mlen = min(len, IWI_CB_MAXDATALEN); 2452 2453 ctl = IWI_CB_DEFAULT_CTL | mlen; 2454 sum = ctl ^ src ^ dst; 2455 2456 /* write a command block */ 2457 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2458 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); 2459 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); 2460 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2461 2462 src += mlen; 2463 dst += mlen; 2464 len -= mlen; 2465 } 2466 } 2467 2468 /* write a fictive final command block (sentinel) */ 2469 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2470 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2471 2472 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2473 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); 2474 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2475 2476 /* tell the adapter to start processing command blocks */ 2477 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2478 2479 /* wait until the adapter reaches the sentinel */ 2480 for (ntries = 0; ntries < 400; ntries++) { 2481 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2482 break; 2483 DELAY(100); 2484 } 2485 /* sync dma, just in case */ 2486 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE); 2487 if (ntries == 400) { 2488 device_printf(sc->sc_dev, 2489 "timeout processing command blocks for %s firmware\n", 2490 fw->name); 2491 return EIO; 2492 } 2493 2494 /* we're done with command blocks processing */ 2495 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2496 2497 /* allow interrupts so we know when the firmware is ready */ 2498 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2499 2500 /* tell the adapter to initialize the firmware */ 2501 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2502 2503 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2504 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); 2505 2506 /* wait at most one second for firmware initialization to complete */ 2507 if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) { 2508 device_printf(sc->sc_dev, "timeout waiting for %s firmware " 2509 "initialization to complete\n", fw->name); 2510 } 2511 2512 return error; 2513} 2514 2515static int 2516iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap) 2517{ 2518 uint32_t data; 2519 2520 if (vap->iv_flags & IEEE80211_F_PMGTON) { 2521 /* XXX set more fine-grained operation */ 2522 data = htole32(IWI_POWER_MODE_MAX); 2523 } else 2524 data = htole32(IWI_POWER_MODE_CAM); 2525 2526 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2527 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data); 2528} 2529 2530static int 2531iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap) 2532{ 2533 struct iwi_wep_key wepkey; 2534 struct ieee80211_key *wk; 2535 int error, i; 2536 2537 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2538 wk = &vap->iv_nw_keys[i]; 2539 2540 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2541 wepkey.idx = i; 2542 wepkey.len = wk->wk_keylen; 2543 memset(wepkey.key, 0, sizeof wepkey.key); 2544 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2545 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2546 wepkey.len)); 2547 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2548 sizeof wepkey); 2549 if (error != 0) 2550 return error; 2551 } 2552 return 0; 2553} 2554 2555static int 2556iwi_config(struct iwi_softc *sc) 2557{ 2558 struct ifnet *ifp = sc->sc_ifp; 2559 struct ieee80211com *ic = ifp->if_l2com; 2560 struct iwi_configuration config; 2561 struct iwi_rateset rs; 2562 struct iwi_txpower power; 2563 uint32_t data; 2564 int error, i; 2565 2566 IWI_LOCK_ASSERT(sc); 2567 2568 DPRINTF(("Setting MAC address to %6D\n", IF_LLADDR(ifp), ":")); 2569 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, IF_LLADDR(ifp), 2570 IEEE80211_ADDR_LEN); 2571 if (error != 0) 2572 return error; 2573 2574 memset(&config, 0, sizeof config); 2575 config.bluetooth_coexistence = sc->bluetooth; 2576 config.silence_threshold = 0x1e; 2577 config.antenna = sc->antenna; 2578 config.multicast_enabled = 1; 2579 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2580 config.disable_unicast_decryption = 1; 2581 config.disable_multicast_decryption = 1; 2582 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2583 config.allow_invalid_frames = 1; 2584 config.allow_beacon_and_probe_resp = 1; 2585 config.allow_mgt = 1; 2586 } 2587 DPRINTF(("Configuring adapter\n")); 2588 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2589 if (error != 0) 2590 return error; 2591 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2592 power.mode = IWI_MODE_11B; 2593 power.nchan = 11; 2594 for (i = 0; i < 11; i++) { 2595 power.chan[i].chan = i + 1; 2596 power.chan[i].power = IWI_TXPOWER_MAX; 2597 } 2598 DPRINTF(("Setting .11b channels tx power\n")); 2599 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2600 if (error != 0) 2601 return error; 2602 2603 power.mode = IWI_MODE_11G; 2604 DPRINTF(("Setting .11g channels tx power\n")); 2605 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2606 if (error != 0) 2607 return error; 2608 } 2609 2610 memset(&rs, 0, sizeof rs); 2611 rs.mode = IWI_MODE_11G; 2612 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2613 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2614 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2615 rs.nrates); 2616 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2617 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2618 if (error != 0) 2619 return error; 2620 2621 memset(&rs, 0, sizeof rs); 2622 rs.mode = IWI_MODE_11A; 2623 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2624 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2625 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2626 rs.nrates); 2627 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2628 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2629 if (error != 0) 2630 return error; 2631 2632 data = htole32(arc4random()); 2633 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2634 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data); 2635 if (error != 0) 2636 return error; 2637 2638 /* enable adapter */ 2639 DPRINTF(("Enabling adapter\n")); 2640 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0); 2641} 2642 2643static __inline void 2644set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type) 2645{ 2646 uint8_t *st = &scan->scan_type[ix / 2]; 2647 if (ix % 2) 2648 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0); 2649 else 2650 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4); 2651} 2652 2653static int 2654scan_type(const struct ieee80211_scan_state *ss, 2655 const struct ieee80211_channel *chan) 2656{ 2657 /* We can only set one essid for a directed scan */ 2658 if (ss->ss_nssid != 0) 2659 return IWI_SCAN_TYPE_BDIRECTED; 2660 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) && 2661 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) 2662 return IWI_SCAN_TYPE_BROADCAST; 2663 return IWI_SCAN_TYPE_PASSIVE; 2664} 2665 2666static __inline int 2667scan_band(const struct ieee80211_channel *c) 2668{ 2669 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ; 2670} 2671 2672static void 2673iwi_monitor_scan(void *arg, int npending) 2674{ 2675 struct iwi_softc *sc = arg; 2676 IWI_LOCK_DECL; 2677 2678 IWI_LOCK(sc); 2679 (void) iwi_scanchan(sc, 2000, 0); 2680 IWI_UNLOCK(sc); 2681} 2682 2683/* 2684 * Start a scan on the current channel or all channels. 2685 */ 2686static int 2687iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan) 2688{ 2689 struct ieee80211com *ic; 2690 struct ieee80211_channel *chan; 2691 struct ieee80211_scan_state *ss; 2692 struct iwi_scan_ext scan; 2693 int error = 0; 2694 2695 IWI_LOCK_ASSERT(sc); 2696 if (sc->fw_state == IWI_FW_SCANNING) { 2697 /* 2698 * This should not happen as we only trigger scan_next after 2699 * completion 2700 */ 2701 DPRINTF(("%s: called too early - still scanning\n", __func__)); 2702 return (EBUSY); 2703 } 2704 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING); 2705 2706 ic = sc->sc_ifp->if_l2com; 2707 ss = ic->ic_scan; 2708 2709 memset(&scan, 0, sizeof scan); 2710 scan.full_scan_index = htole32(++sc->sc_scangen); 2711 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell); 2712 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 2713 /* 2714 * Use very short dwell times for when we send probe request 2715 * frames. Without this bg scans hang. Ideally this should 2716 * be handled with early-termination as done by net80211 but 2717 * that's not feasible (aborting a scan is problematic). 2718 */ 2719 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30); 2720 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30); 2721 } else { 2722 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell); 2723 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell); 2724 } 2725 2726 /* We can only set one essid for a directed scan */ 2727 if (ss->ss_nssid != 0) { 2728 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid, 2729 ss->ss_ssid[0].len); 2730 if (error) 2731 return (error); 2732 } 2733 2734 if (allchan) { 2735 int i, next, band, b, bstart; 2736 /* 2737 * Convert scan list to run-length encoded channel list 2738 * the firmware requires (preserving the order setup by 2739 * net80211). The first entry in each run specifies the 2740 * band and the count of items in the run. 2741 */ 2742 next = 0; /* next open slot */ 2743 bstart = 0; /* NB: not needed, silence compiler */ 2744 band = -1; /* NB: impossible value */ 2745 KASSERT(ss->ss_last > 0, ("no channels")); 2746 for (i = 0; i < ss->ss_last; i++) { 2747 chan = ss->ss_chans[i]; 2748 b = scan_band(chan); 2749 if (b != band) { 2750 if (band != -1) 2751 scan.channels[bstart] = 2752 (next - bstart) | band; 2753 /* NB: this allocates a slot for the run-len */ 2754 band = b, bstart = next++; 2755 } 2756 if (next >= IWI_SCAN_CHANNELS) { 2757 DPRINTF(("truncating scan list\n")); 2758 break; 2759 } 2760 scan.channels[next] = ieee80211_chan2ieee(ic, chan); 2761 set_scan_type(&scan, next, scan_type(ss, chan)); 2762 next++; 2763 } 2764 scan.channels[bstart] = (next - bstart) | band; 2765 } else { 2766 /* Scan the current channel only */ 2767 chan = ic->ic_curchan; 2768 scan.channels[0] = 1 | scan_band(chan); 2769 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2770 set_scan_type(&scan, 1, scan_type(ss, chan)); 2771 } 2772#ifdef IWI_DEBUG 2773 if (iwi_debug > 0) { 2774 static const char *scantype[8] = 2775 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" }; 2776 int i; 2777 printf("Scan request: index %u dwell %d/%d/%d\n" 2778 , le32toh(scan.full_scan_index) 2779 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE]) 2780 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST]) 2781 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED]) 2782 ); 2783 i = 0; 2784 do { 2785 int run = scan.channels[i]; 2786 if (run == 0) 2787 break; 2788 printf("Scan %d %s channels:", run & 0x3f, 2789 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz"); 2790 for (run &= 0x3f, i++; run > 0; run--, i++) { 2791 uint8_t type = scan.scan_type[i/2]; 2792 printf(" %u/%s", scan.channels[i], 2793 scantype[(i & 1 ? type : type>>4) & 7]); 2794 } 2795 printf("\n"); 2796 } while (i < IWI_SCAN_CHANNELS); 2797 } 2798#endif 2799 2800 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan)); 2801} 2802 2803static int 2804iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm) 2805{ 2806 struct iwi_sensitivity sens; 2807 2808 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm)); 2809 2810 memset(&sens, 0, sizeof sens); 2811 sens.rssi = htole16(rssi_dbm); 2812 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens); 2813} 2814 2815static int 2816iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap) 2817{ 2818 struct ieee80211com *ic = vap->iv_ic; 2819 struct ifnet *ifp = vap->iv_ifp; 2820 struct ieee80211_node *ni = vap->iv_bss; 2821 struct iwi_configuration config; 2822 struct iwi_associate *assoc = &sc->assoc; 2823 struct iwi_rateset rs; 2824 uint16_t capinfo; 2825 uint32_t data; 2826 int error, mode; 2827 2828 IWI_LOCK_ASSERT(sc); 2829 2830 if (sc->flags & IWI_FLAG_ASSOCIATED) { 2831 DPRINTF(("Already associated\n")); 2832 return (-1); 2833 } 2834 2835 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING); 2836 error = 0; 2837 mode = 0; 2838 2839 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) 2840 mode = IWI_MODE_11A; 2841 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan)) 2842 mode = IWI_MODE_11G; 2843 if (IEEE80211_IS_CHAN_B(ic->ic_curchan)) 2844 mode = IWI_MODE_11B; 2845 2846 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2847 memset(&config, 0, sizeof config); 2848 config.bluetooth_coexistence = sc->bluetooth; 2849 config.antenna = sc->antenna; 2850 config.multicast_enabled = 1; 2851 if (mode == IWI_MODE_11G) 2852 config.use_protection = 1; 2853 config.answer_pbreq = 2854 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2855 config.disable_unicast_decryption = 1; 2856 config.disable_multicast_decryption = 1; 2857 DPRINTF(("Configuring adapter\n")); 2858 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2859 if (error != 0) 2860 goto done; 2861 } 2862 2863#ifdef IWI_DEBUG 2864 if (iwi_debug > 0) { 2865 printf("Setting ESSID to "); 2866 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2867 printf("\n"); 2868 } 2869#endif 2870 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); 2871 if (error != 0) 2872 goto done; 2873 2874 error = iwi_setpowermode(sc, vap); 2875 if (error != 0) 2876 goto done; 2877 2878 data = htole32(vap->iv_rtsthreshold); 2879 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2880 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2881 if (error != 0) 2882 goto done; 2883 2884 data = htole32(vap->iv_fragthreshold); 2885 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2886 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2887 if (error != 0) 2888 goto done; 2889 2890 /* the rate set has already been "negotiated" */ 2891 memset(&rs, 0, sizeof rs); 2892 rs.mode = mode; 2893 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2894 rs.nrates = ni->ni_rates.rs_nrates; 2895 if (rs.nrates > IWI_RATESET_SIZE) { 2896 DPRINTF(("Truncating negotiated rate set from %u\n", 2897 rs.nrates)); 2898 rs.nrates = IWI_RATESET_SIZE; 2899 } 2900 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2901 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2902 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2903 if (error != 0) 2904 goto done; 2905 2906 memset(assoc, 0, sizeof *assoc); 2907 2908 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) { 2909 /* NB: don't treat WME setup as failure */ 2910 if (iwi_wme_setparams(sc, ic) == 0 && iwi_wme_setie(sc) == 0) 2911 assoc->policy |= htole16(IWI_POLICY_WME); 2912 /* XXX complain on failure? */ 2913 } 2914 2915 if (vap->iv_appie_wpa != NULL) { 2916 struct ieee80211_appie *ie = vap->iv_appie_wpa; 2917 2918 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len)); 2919 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len); 2920 if (error != 0) 2921 goto done; 2922 } 2923 2924 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni)); 2925 if (error != 0) 2926 goto done; 2927 2928 assoc->mode = mode; 2929 assoc->chan = ic->ic_curchan->ic_ieee; 2930 /* 2931 * NB: do not arrange for shared key auth w/o privacy 2932 * (i.e. a wep key); it causes a firmware error. 2933 */ 2934 if ((vap->iv_flags & IEEE80211_F_PRIVACY) && 2935 ni->ni_authmode == IEEE80211_AUTH_SHARED) { 2936 assoc->auth = IWI_AUTH_SHARED; 2937 /* 2938 * It's possible to have privacy marked but no default 2939 * key setup. This typically is due to a user app bug 2940 * but if we blindly grab the key the firmware will 2941 * barf so avoid it for now. 2942 */ 2943 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) 2944 assoc->auth |= vap->iv_def_txkey << 4; 2945 2946 error = iwi_setwepkeys(sc, vap); 2947 if (error != 0) 2948 goto done; 2949 } 2950 if (vap->iv_flags & IEEE80211_F_WPA) 2951 assoc->policy |= htole16(IWI_POLICY_WPA); 2952 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 2953 assoc->type = IWI_HC_IBSS_START; 2954 else 2955 assoc->type = IWI_HC_ASSOC; 2956 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8); 2957 2958 if (vap->iv_opmode == IEEE80211_M_IBSS) 2959 capinfo = IEEE80211_CAPINFO_IBSS; 2960 else 2961 capinfo = IEEE80211_CAPINFO_ESS; 2962 if (vap->iv_flags & IEEE80211_F_PRIVACY) 2963 capinfo |= IEEE80211_CAPINFO_PRIVACY; 2964 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2965 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 2966 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2967 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) 2968 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2969 assoc->capinfo = htole16(capinfo); 2970 2971 assoc->lintval = htole16(ic->ic_lintval); 2972 assoc->intval = htole16(ni->ni_intval); 2973 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid); 2974 if (vap->iv_opmode == IEEE80211_M_IBSS) 2975 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr); 2976 else 2977 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid); 2978 2979 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x " 2980 "auth %u capinfo 0x%x lintval %u bintval %u\n", 2981 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", 2982 assoc->bssid, ":", assoc->dst, ":", 2983 assoc->chan, le16toh(assoc->policy), assoc->auth, 2984 le16toh(assoc->capinfo), le16toh(assoc->lintval), 2985 le16toh(assoc->intval))); 2986 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 2987done: 2988 if (error) 2989 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 2990 2991 return (error); 2992} 2993 2994static void 2995iwi_disassoc(void *arg, int pending) 2996{ 2997 struct iwi_softc *sc = arg; 2998 IWI_LOCK_DECL; 2999 3000 IWI_LOCK(sc); 3001 iwi_disassociate(sc, 0); 3002 IWI_UNLOCK(sc); 3003} 3004 3005static int 3006iwi_disassociate(struct iwi_softc *sc, int quiet) 3007{ 3008 struct iwi_associate *assoc = &sc->assoc; 3009 3010 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) { 3011 DPRINTF(("Not associated\n")); 3012 return (-1); 3013 } 3014 3015 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING); 3016 3017 if (quiet) 3018 assoc->type = IWI_HC_DISASSOC_QUIET; 3019 else 3020 assoc->type = IWI_HC_DISASSOC; 3021 3022 DPRINTF(("Trying to disassociate from %6D channel %u\n", 3023 assoc->bssid, ":", assoc->chan)); 3024 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 3025} 3026 3027/* 3028 * release dma resources for the firmware 3029 */ 3030static void 3031iwi_release_fw_dma(struct iwi_softc *sc) 3032{ 3033 if (sc->fw_flags & IWI_FW_HAVE_PHY) 3034 bus_dmamap_unload(sc->fw_dmat, sc->fw_map); 3035 if (sc->fw_flags & IWI_FW_HAVE_MAP) 3036 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map); 3037 if (sc->fw_flags & IWI_FW_HAVE_DMAT) 3038 bus_dma_tag_destroy(sc->fw_dmat); 3039 3040 sc->fw_flags = 0; 3041 sc->fw_dma_size = 0; 3042 sc->fw_dmat = NULL; 3043 sc->fw_map = NULL; 3044 sc->fw_physaddr = 0; 3045 sc->fw_virtaddr = NULL; 3046} 3047 3048/* 3049 * allocate the dma descriptor for the firmware. 3050 * Return 0 on success, 1 on error. 3051 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING. 3052 */ 3053static int 3054iwi_init_fw_dma(struct iwi_softc *sc, int size) 3055{ 3056 if (sc->fw_dma_size >= size) 3057 return 0; 3058 if (bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 3059 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 3060 size, 1, size, 0, NULL, NULL, &sc->fw_dmat) != 0) { 3061 device_printf(sc->sc_dev, 3062 "could not create firmware DMA tag\n"); 3063 goto error; 3064 } 3065 sc->fw_flags |= IWI_FW_HAVE_DMAT; 3066 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0, 3067 &sc->fw_map) != 0) { 3068 device_printf(sc->sc_dev, 3069 "could not allocate firmware DMA memory\n"); 3070 goto error; 3071 } 3072 sc->fw_flags |= IWI_FW_HAVE_MAP; 3073 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr, 3074 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) { 3075 device_printf(sc->sc_dev, "could not load firmware DMA map\n"); 3076 goto error; 3077 } 3078 sc->fw_flags |= IWI_FW_HAVE_PHY; 3079 sc->fw_dma_size = size; 3080 return 0; 3081 3082error: 3083 iwi_release_fw_dma(sc); 3084 return 1; 3085} 3086 3087static void 3088iwi_init_locked(struct iwi_softc *sc) 3089{ 3090 struct ifnet *ifp = sc->sc_ifp; 3091 struct iwi_rx_data *data; 3092 int i; 3093 3094 IWI_LOCK_ASSERT(sc); 3095 3096 if (sc->fw_state == IWI_FW_LOADING) { 3097 device_printf(sc->sc_dev, "%s: already loading\n", __func__); 3098 return; /* XXX: condvar? */ 3099 } 3100 3101 iwi_stop_locked(sc); 3102 3103 IWI_STATE_BEGIN(sc, IWI_FW_LOADING); 3104 3105 if (iwi_reset(sc) != 0) { 3106 device_printf(sc->sc_dev, "could not reset adapter\n"); 3107 goto fail; 3108 } 3109 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) { 3110 device_printf(sc->sc_dev, 3111 "could not load boot firmware %s\n", sc->fw_boot.name); 3112 goto fail; 3113 } 3114 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) { 3115 device_printf(sc->sc_dev, 3116 "could not load microcode %s\n", sc->fw_uc.name); 3117 goto fail; 3118 } 3119 3120 iwi_stop_master(sc); 3121 3122 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr); 3123 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 3124 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 3125 3126 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr); 3127 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 3128 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 3129 3130 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr); 3131 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 3132 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 3133 3134 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr); 3135 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 3136 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 3137 3138 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr); 3139 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 3140 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 3141 3142 for (i = 0; i < sc->rxq.count; i++) { 3143 data = &sc->rxq.data[i]; 3144 CSR_WRITE_4(sc, data->reg, data->physaddr); 3145 } 3146 3147 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1); 3148 3149 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) { 3150 device_printf(sc->sc_dev, 3151 "could not load main firmware %s\n", sc->fw_fw.name); 3152 goto fail; 3153 } 3154 sc->flags |= IWI_FLAG_FW_INITED; 3155 3156 IWI_STATE_END(sc, IWI_FW_LOADING); 3157 3158 if (iwi_config(sc) != 0) { 3159 device_printf(sc->sc_dev, "unable to enable adapter\n"); 3160 goto fail2; 3161 } 3162 3163 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 3164 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3165 ifp->if_drv_flags |= IFF_DRV_RUNNING; 3166 return; 3167fail: 3168 IWI_STATE_END(sc, IWI_FW_LOADING); 3169fail2: 3170 iwi_stop_locked(sc); 3171} 3172 3173static void 3174iwi_init(void *priv) 3175{ 3176 struct iwi_softc *sc = priv; 3177 struct ifnet *ifp = sc->sc_ifp; 3178 struct ieee80211com *ic = ifp->if_l2com; 3179 IWI_LOCK_DECL; 3180 3181 IWI_LOCK(sc); 3182 iwi_init_locked(sc); 3183 IWI_UNLOCK(sc); 3184 3185 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3186 ieee80211_start_all(ic); 3187} 3188 3189static void 3190iwi_stop_locked(void *priv) 3191{ 3192 struct iwi_softc *sc = priv; 3193 struct ifnet *ifp = sc->sc_ifp; 3194 3195 IWI_LOCK_ASSERT(sc); 3196 3197 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 3198 3199 if (sc->sc_softled) { 3200 callout_stop(&sc->sc_ledtimer); 3201 sc->sc_blinking = 0; 3202 } 3203 callout_stop(&sc->sc_wdtimer); 3204 callout_stop(&sc->sc_rftimer); 3205 3206 iwi_stop_master(sc); 3207 3208 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET); 3209 3210 /* reset rings */ 3211 iwi_reset_cmd_ring(sc, &sc->cmdq); 3212 iwi_reset_tx_ring(sc, &sc->txq[0]); 3213 iwi_reset_tx_ring(sc, &sc->txq[1]); 3214 iwi_reset_tx_ring(sc, &sc->txq[2]); 3215 iwi_reset_tx_ring(sc, &sc->txq[3]); 3216 iwi_reset_rx_ring(sc, &sc->rxq); 3217 3218 sc->sc_tx_timer = 0; 3219 sc->sc_state_timer = 0; 3220 sc->sc_busy_timer = 0; 3221 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED); 3222 sc->fw_state = IWI_FW_IDLE; 3223 wakeup(sc); 3224} 3225 3226static void 3227iwi_stop(struct iwi_softc *sc) 3228{ 3229 IWI_LOCK_DECL; 3230 3231 IWI_LOCK(sc); 3232 iwi_stop_locked(sc); 3233 IWI_UNLOCK(sc); 3234} 3235 3236static void 3237iwi_restart(void *arg, int npending) 3238{ 3239 struct iwi_softc *sc = arg; 3240 3241 iwi_init(sc); 3242} 3243 3244/* 3245 * Return whether or not the radio is enabled in hardware 3246 * (i.e. the rfkill switch is "off"). 3247 */ 3248static int 3249iwi_getrfkill(struct iwi_softc *sc) 3250{ 3251 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 3252} 3253 3254static void 3255iwi_radio_on(void *arg, int pending) 3256{ 3257 struct iwi_softc *sc = arg; 3258 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 3259 3260 device_printf(sc->sc_dev, "radio turned on\n"); 3261 3262 iwi_init(sc); 3263 ieee80211_notify_radio(ic, 1); 3264} 3265 3266static void 3267iwi_rfkill_poll(void *arg) 3268{ 3269 struct iwi_softc *sc = arg; 3270 3271 IWI_LOCK_ASSERT(sc); 3272 3273 /* 3274 * Check for a change in rfkill state. We get an 3275 * interrupt when a radio is disabled but not when 3276 * it is enabled so we must poll for the latter. 3277 */ 3278 if (!iwi_getrfkill(sc)) { 3279 struct ifnet *ifp = sc->sc_ifp; 3280 struct ieee80211com *ic = ifp->if_l2com; 3281 3282 ieee80211_runtask(ic, &sc->sc_radiontask); 3283 return; 3284 } 3285 callout_reset(&sc->sc_rftimer, 2*hz, iwi_rfkill_poll, sc); 3286} 3287 3288static void 3289iwi_radio_off(void *arg, int pending) 3290{ 3291 struct iwi_softc *sc = arg; 3292 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 3293 IWI_LOCK_DECL; 3294 3295 device_printf(sc->sc_dev, "radio turned off\n"); 3296 3297 ieee80211_notify_radio(ic, 0); 3298 3299 IWI_LOCK(sc); 3300 iwi_stop_locked(sc); 3301 iwi_rfkill_poll(sc); 3302 IWI_UNLOCK(sc); 3303} 3304 3305static int 3306iwi_sysctl_stats(SYSCTL_HANDLER_ARGS) 3307{ 3308 struct iwi_softc *sc = arg1; 3309 uint32_t size, buf[128]; 3310 3311 memset(buf, 0, sizeof buf); 3312 3313 if (!(sc->flags & IWI_FLAG_FW_INITED)) 3314 return SYSCTL_OUT(req, buf, sizeof buf); 3315 3316 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 3317 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 3318 3319 return SYSCTL_OUT(req, buf, size); 3320} 3321 3322static int 3323iwi_sysctl_radio(SYSCTL_HANDLER_ARGS) 3324{ 3325 struct iwi_softc *sc = arg1; 3326 int val = !iwi_getrfkill(sc); 3327 3328 return SYSCTL_OUT(req, &val, sizeof val); 3329} 3330 3331/* 3332 * Add sysctl knobs. 3333 */ 3334static void 3335iwi_sysctlattach(struct iwi_softc *sc) 3336{ 3337 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 3338 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 3339 3340 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio", 3341 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I", 3342 "radio transmitter switch state (0=off, 1=on)"); 3343 3344 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats", 3345 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S", 3346 "statistics"); 3347 3348 sc->bluetooth = 0; 3349 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth", 3350 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence"); 3351 3352 sc->antenna = IWI_ANTENNA_AUTO; 3353 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna", 3354 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)"); 3355} 3356 3357/* 3358 * LED support. 3359 * 3360 * Different cards have different capabilities. Some have three 3361 * led's while others have only one. The linux ipw driver defines 3362 * led's for link state (associated or not), band (11a, 11g, 11b), 3363 * and for link activity. We use one led and vary the blink rate 3364 * according to the tx/rx traffic a la the ath driver. 3365 */ 3366 3367static __inline uint32_t 3368iwi_toggle_event(uint32_t r) 3369{ 3370 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA | 3371 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA); 3372} 3373 3374static uint32_t 3375iwi_read_event(struct iwi_softc *sc) 3376{ 3377 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT); 3378} 3379 3380static void 3381iwi_write_event(struct iwi_softc *sc, uint32_t v) 3382{ 3383 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v); 3384} 3385 3386static void 3387iwi_led_done(void *arg) 3388{ 3389 struct iwi_softc *sc = arg; 3390 3391 sc->sc_blinking = 0; 3392} 3393 3394/* 3395 * Turn the activity LED off: flip the pin and then set a timer so no 3396 * update will happen for the specified duration. 3397 */ 3398static void 3399iwi_led_off(void *arg) 3400{ 3401 struct iwi_softc *sc = arg; 3402 uint32_t v; 3403 3404 v = iwi_read_event(sc); 3405 v &= ~sc->sc_ledpin; 3406 iwi_write_event(sc, iwi_toggle_event(v)); 3407 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, iwi_led_done, sc); 3408} 3409 3410/* 3411 * Blink the LED according to the specified on/off times. 3412 */ 3413static void 3414iwi_led_blink(struct iwi_softc *sc, int on, int off) 3415{ 3416 uint32_t v; 3417 3418 v = iwi_read_event(sc); 3419 v |= sc->sc_ledpin; 3420 iwi_write_event(sc, iwi_toggle_event(v)); 3421 sc->sc_blinking = 1; 3422 sc->sc_ledoff = off; 3423 callout_reset(&sc->sc_ledtimer, on, iwi_led_off, sc); 3424} 3425 3426static void 3427iwi_led_event(struct iwi_softc *sc, int event) 3428{ 3429#define N(a) (sizeof(a)/sizeof(a[0])) 3430 /* NB: on/off times from the Atheros NDIS driver, w/ permission */ 3431 static const struct { 3432 u_int rate; /* tx/rx iwi rate */ 3433 u_int16_t timeOn; /* LED on time (ms) */ 3434 u_int16_t timeOff; /* LED off time (ms) */ 3435 } blinkrates[] = { 3436 { IWI_RATE_OFDM54, 40, 10 }, 3437 { IWI_RATE_OFDM48, 44, 11 }, 3438 { IWI_RATE_OFDM36, 50, 13 }, 3439 { IWI_RATE_OFDM24, 57, 14 }, 3440 { IWI_RATE_OFDM18, 67, 16 }, 3441 { IWI_RATE_OFDM12, 80, 20 }, 3442 { IWI_RATE_DS11, 100, 25 }, 3443 { IWI_RATE_OFDM9, 133, 34 }, 3444 { IWI_RATE_OFDM6, 160, 40 }, 3445 { IWI_RATE_DS5, 200, 50 }, 3446 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */ 3447 { IWI_RATE_DS2, 267, 66 }, 3448 { IWI_RATE_DS1, 400, 100 }, 3449 { 0, 500, 130 }, /* unknown rate/polling */ 3450 }; 3451 uint32_t txrate; 3452 int j = 0; /* XXX silence compiler */ 3453 3454 sc->sc_ledevent = ticks; /* time of last event */ 3455 if (sc->sc_blinking) /* don't interrupt active blink */ 3456 return; 3457 switch (event) { 3458 case IWI_LED_POLL: 3459 j = N(blinkrates)-1; 3460 break; 3461 case IWI_LED_TX: 3462 /* read current transmission rate from adapter */ 3463 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE); 3464 if (blinkrates[sc->sc_txrix].rate != txrate) { 3465 for (j = 0; j < N(blinkrates)-1; j++) 3466 if (blinkrates[j].rate == txrate) 3467 break; 3468 sc->sc_txrix = j; 3469 } else 3470 j = sc->sc_txrix; 3471 break; 3472 case IWI_LED_RX: 3473 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) { 3474 for (j = 0; j < N(blinkrates)-1; j++) 3475 if (blinkrates[j].rate == sc->sc_rxrate) 3476 break; 3477 sc->sc_rxrix = j; 3478 } else 3479 j = sc->sc_rxrix; 3480 break; 3481 } 3482 /* XXX beware of overflow */ 3483 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000, 3484 (blinkrates[j].timeOff * hz) / 1000); 3485#undef N 3486} 3487 3488static int 3489iwi_sysctl_softled(SYSCTL_HANDLER_ARGS) 3490{ 3491 struct iwi_softc *sc = arg1; 3492 int softled = sc->sc_softled; 3493 int error; 3494 3495 error = sysctl_handle_int(oidp, &softled, 0, req); 3496 if (error || !req->newptr) 3497 return error; 3498 softled = (softled != 0); 3499 if (softled != sc->sc_softled) { 3500 if (softled) { 3501 uint32_t v = iwi_read_event(sc); 3502 v &= ~sc->sc_ledpin; 3503 iwi_write_event(sc, iwi_toggle_event(v)); 3504 } 3505 sc->sc_softled = softled; 3506 } 3507 return 0; 3508} 3509 3510static void 3511iwi_ledattach(struct iwi_softc *sc) 3512{ 3513 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 3514 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 3515 3516 sc->sc_blinking = 0; 3517 sc->sc_ledstate = 1; 3518 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */ 3519 callout_init_mtx(&sc->sc_ledtimer, &sc->sc_mtx, 0); 3520 3521 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3522 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 3523 iwi_sysctl_softled, "I", "enable/disable software LED support"); 3524 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3525 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0, 3526 "pin setting to turn activity LED on"); 3527 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3528 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0, 3529 "idle time for inactivity LED (ticks)"); 3530 /* XXX for debugging */ 3531 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3532 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0, 3533 "NIC type from EEPROM"); 3534 3535 sc->sc_ledpin = IWI_RST_LED_ACTIVITY; 3536 sc->sc_softled = 1; 3537 3538 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff; 3539 if (sc->sc_nictype == 1) { 3540 /* 3541 * NB: led's are reversed. 3542 */ 3543 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED; 3544 } 3545} 3546 3547static void 3548iwi_scan_start(struct ieee80211com *ic) 3549{ 3550 /* ignore */ 3551} 3552 3553static void 3554iwi_set_channel(struct ieee80211com *ic) 3555{ 3556 struct ifnet *ifp = ic->ic_ifp; 3557 struct iwi_softc *sc = ifp->if_softc; 3558 if (sc->fw_state == IWI_FW_IDLE) 3559 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee); 3560} 3561 3562static void 3563iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 3564{ 3565 struct ieee80211vap *vap = ss->ss_vap; 3566 struct ifnet *ifp = vap->iv_ic->ic_ifp; 3567 struct iwi_softc *sc = ifp->if_softc; 3568 IWI_LOCK_DECL; 3569 3570 IWI_LOCK(sc); 3571 if (iwi_scanchan(sc, maxdwell, 0)) 3572 ieee80211_cancel_scan(vap); 3573 IWI_UNLOCK(sc); 3574} 3575 3576static void 3577iwi_scan_mindwell(struct ieee80211_scan_state *ss) 3578{ 3579 /* NB: don't try to abort scan; wait for firmware to finish */ 3580} 3581 3582static void 3583iwi_scan_end(struct ieee80211com *ic) 3584{ 3585 struct ifnet *ifp = ic->ic_ifp; 3586 struct iwi_softc *sc = ifp->if_softc; 3587 IWI_LOCK_DECL; 3588 3589 IWI_LOCK(sc); 3590 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN; 3591 /* NB: make sure we're still scanning */ 3592 if (sc->fw_state == IWI_FW_SCANNING) 3593 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0); 3594 IWI_UNLOCK(sc); 3595} 3596