1 /*- 2 * Copyright (c) 2004, 2005 3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 4 * Copyright (c) 2005-2006 Sam Leffler, Errno Consulting 5 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: head/sys/dev/iwi/if_iwi.c 298818 2016-04-29 22:14:11Z avos $ 30 */ 31 32 /*- 33 * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 34 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 35 */ 36 37 #include <sys/param.h> 38 #include <sys/sysctl.h> 39 #include <sys/sockio.h> 40 #include <sys/mbuf.h> 41 #include <sys/kernel.h> 42 #include <sys/socket.h> 43 #include <sys/systm.h> 44 #include <sys/malloc.h> 45 #include <sys/lock.h> 46 #include <sys/module.h> 47 #include <sys/bus.h> 48 #include <sys/endian.h> 49 #include <sys/proc.h> 50 #include <sys/mount.h> 51 #include <sys/linker.h> 52 #include <sys/firmware.h> 53 #include <sys/taskqueue.h> 54 #if defined(__DragonFly__) 55 #include <sys/devfs.h> 56 #endif 57 58 #if !defined(__DragonFly__) 59 #include <machine/bus.h> 60 #include <machine/resource.h> 61 #endif 62 #include <sys/rman.h> 63 64 #if defined(__DragonFly__) 65 #include <bus/pci/pcivar.h> 66 #include <bus/pci/pcireg.h> 67 #else 68 #include <dev/pci/pcireg.h> 69 #include <dev/pci/pcivar.h> 70 #endif 71 72 #include <net/bpf.h> 73 #include <net/if.h> 74 #include <net/if_var.h> 75 #include <net/if_arp.h> 76 #include <net/ethernet.h> 77 #include <net/if_dl.h> 78 #include <net/if_media.h> 79 #include <net/if_types.h> 80 81 #if defined(__DragonFly__) 82 #include <netproto/802_11/ieee80211_var.h> 83 #include <netproto/802_11/ieee80211_radiotap.h> 84 #include <netproto/802_11/ieee80211_input.h> 85 #include <netproto/802_11/ieee80211_regdomain.h> 86 #else 87 #include <net80211/ieee80211_var.h> 88 #include <net80211/ieee80211_radiotap.h> 89 #include <net80211/ieee80211_input.h> 90 #include <net80211/ieee80211_regdomain.h> 91 #endif 92 93 #include <netinet/in.h> 94 #include <netinet/in_systm.h> 95 #include <netinet/in_var.h> 96 #include <netinet/ip.h> 97 #include <netinet/if_ether.h> 98 99 #if defined(__DragonFly__) 100 #include "if_iwireg.h" 101 #include "if_iwivar.h" 102 #else 103 #include <dev/iwi/if_iwireg.h> 104 #include <dev/iwi/if_iwivar.h> 105 #endif 106 107 #define IWI_DEBUG 108 #ifdef IWI_DEBUG 109 #define DPRINTF(x) do { if (iwi_debug > 0) kprintf x; } while (0) 110 #define DPRINTFN(n, x) do { if (iwi_debug >= (n)) kprintf x; } while (0) 111 int iwi_debug = 0; 112 SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); 113 114 static const char *iwi_fw_states[] = { 115 "IDLE", /* IWI_FW_IDLE */ 116 "LOADING", /* IWI_FW_LOADING */ 117 "ASSOCIATING", /* IWI_FW_ASSOCIATING */ 118 "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */ 119 "SCANNING", /* IWI_FW_SCANNING */ 120 }; 121 #else 122 #define DPRINTF(x) 123 #define DPRINTFN(n, x) 124 #endif 125 126 MODULE_DEPEND(iwi, pci, 1, 1, 1); 127 MODULE_DEPEND(iwi, wlan, 1, 1, 1); 128 MODULE_DEPEND(iwi, firmware, 1, 1, 1); 129 130 enum { 131 IWI_LED_TX, 132 IWI_LED_RX, 133 IWI_LED_POLL, 134 }; 135 136 struct iwi_ident { 137 uint16_t vendor; 138 uint16_t device; 139 const char *name; 140 }; 141 142 static const struct iwi_ident iwi_ident_table[] = { 143 { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, 144 { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, 145 { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, 146 { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, 147 148 { 0, 0, NULL } 149 }; 150 151 static struct ieee80211vap *iwi_vap_create(struct ieee80211com *, 152 const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 153 const uint8_t [IEEE80211_ADDR_LEN], 154 const uint8_t [IEEE80211_ADDR_LEN]); 155 static void iwi_vap_delete(struct ieee80211vap *); 156 static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 157 static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 158 int); 159 static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 160 static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 161 static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 162 int, bus_addr_t, bus_addr_t); 163 static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 164 static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 165 static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 166 int); 167 static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 168 static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 169 static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *, 170 const uint8_t [IEEE80211_ADDR_LEN]); 171 static void iwi_node_free(struct ieee80211_node *); 172 static void iwi_media_status(struct ifnet *, struct ifmediareq *); 173 static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 174 static void iwi_wme_init(struct iwi_softc *); 175 static int iwi_wme_setparams(struct iwi_softc *); 176 static int iwi_wme_update(struct ieee80211com *); 177 static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 178 static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 179 struct iwi_frame *); 180 static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 181 static void iwi_rx_intr(struct iwi_softc *); 182 static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 183 static void iwi_intr(void *); 184 static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t); 185 static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int); 186 static int iwi_tx_start(struct iwi_softc *, struct mbuf *, 187 struct ieee80211_node *, int); 188 static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *, 189 const struct ieee80211_bpf_params *); 190 static void iwi_start(struct iwi_softc *); 191 static int iwi_transmit(struct ieee80211com *, struct mbuf *); 192 static void iwi_watchdog(void *); 193 static void iwi_parent(struct ieee80211com *); 194 static void iwi_stop_master(struct iwi_softc *); 195 static int iwi_reset(struct iwi_softc *); 196 static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *); 197 static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *); 198 static void iwi_release_fw_dma(struct iwi_softc *sc); 199 static int iwi_config(struct iwi_softc *); 200 static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode); 201 static void iwi_put_firmware(struct iwi_softc *); 202 static void iwi_monitor_scan(void *, int); 203 static int iwi_scanchan(struct iwi_softc *, unsigned long, int); 204 static void iwi_scan_start(struct ieee80211com *); 205 static void iwi_scan_end(struct ieee80211com *); 206 static void iwi_set_channel(struct ieee80211com *); 207 static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell); 208 static void iwi_scan_mindwell(struct ieee80211_scan_state *); 209 static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *); 210 static void iwi_disassoc(void *, int); 211 static int iwi_disassociate(struct iwi_softc *, int quiet); 212 static void iwi_init_locked(struct iwi_softc *); 213 static void iwi_init(void *); 214 static int iwi_init_fw_dma(struct iwi_softc *, int); 215 static void iwi_stop_locked(void *); 216 static void iwi_stop(struct iwi_softc *); 217 static void iwi_restart(void *, int); 218 static int iwi_getrfkill(struct iwi_softc *); 219 static void iwi_radio_on(void *, int); 220 static void iwi_radio_off(void *, int); 221 static void iwi_sysctlattach(struct iwi_softc *); 222 static void iwi_led_event(struct iwi_softc *, int); 223 static void iwi_ledattach(struct iwi_softc *); 224 225 static int iwi_probe(device_t); 226 static int iwi_attach(device_t); 227 static int iwi_detach(device_t); 228 static int iwi_shutdown(device_t); 229 static int iwi_suspend(device_t); 230 static int iwi_resume(device_t); 231 232 static device_method_t iwi_methods[] = { 233 /* Device interface */ 234 DEVMETHOD(device_probe, iwi_probe), 235 DEVMETHOD(device_attach, iwi_attach), 236 DEVMETHOD(device_detach, iwi_detach), 237 DEVMETHOD(device_shutdown, iwi_shutdown), 238 DEVMETHOD(device_suspend, iwi_suspend), 239 DEVMETHOD(device_resume, iwi_resume), 240 241 DEVMETHOD_END 242 }; 243 244 static driver_t iwi_driver = { 245 "iwi", 246 iwi_methods, 247 sizeof (struct iwi_softc) 248 }; 249 250 static devclass_t iwi_devclass; 251 252 DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL); 253 254 MODULE_VERSION(iwi, 1); 255 256 static __inline uint8_t 257 MEM_READ_1(struct iwi_softc *sc, uint32_t addr) 258 { 259 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 260 return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 261 } 262 263 static __inline uint32_t 264 MEM_READ_4(struct iwi_softc *sc, uint32_t addr) 265 { 266 CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 267 return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 268 } 269 270 static int 271 iwi_probe(device_t dev) 272 { 273 const struct iwi_ident *ident; 274 275 for (ident = iwi_ident_table; ident->name != NULL; ident++) { 276 if (pci_get_vendor(dev) == ident->vendor && 277 pci_get_device(dev) == ident->device) { 278 device_set_desc(dev, ident->name); 279 return (BUS_PROBE_DEFAULT); 280 } 281 } 282 return ENXIO; 283 } 284 285 static int 286 iwi_attach(device_t dev) 287 { 288 struct iwi_softc *sc = device_get_softc(dev); 289 struct ieee80211com *ic = &sc->sc_ic; 290 uint16_t val; 291 uint8_t bands[IEEE80211_MODE_BYTES]; 292 int i, error; 293 294 sc->sc_dev = dev; 295 296 IWI_LOCK_INIT(sc); 297 mbufq_init(&sc->sc_snd, ifqmaxlen); 298 299 #if defined(__DragonFly__) 300 devfs_clone_bitmap_init(&sc->sc_unr); 301 #else 302 sc->sc_unr = new_unrhdr(1, IWI_MAX_IBSSNODE-1, &sc->sc_mtx); 303 #endif 304 305 TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc); 306 TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc); 307 TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc); 308 TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc); 309 TASK_INIT(&sc->sc_monitortask, 0, iwi_monitor_scan, sc); 310 311 #if defined(__DragonFly__) 312 callout_init_lk(&sc->sc_wdtimer, &sc->sc_lock); 313 callout_init_lk(&sc->sc_rftimer, &sc->sc_lock); 314 #else 315 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0); 316 callout_init_mtx(&sc->sc_rftimer, &sc->sc_mtx, 0); 317 #endif 318 319 pci_write_config(dev, 0x41, 0, 1); 320 321 /* enable bus-mastering */ 322 pci_enable_busmaster(dev); 323 324 i = PCIR_BAR(0); 325 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE); 326 if (sc->mem == NULL) { 327 device_printf(dev, "could not allocate memory resource\n"); 328 goto fail; 329 } 330 331 sc->sc_st = rman_get_bustag(sc->mem); 332 sc->sc_sh = rman_get_bushandle(sc->mem); 333 334 i = 0; 335 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, 336 RF_ACTIVE | RF_SHAREABLE); 337 if (sc->irq == NULL) { 338 device_printf(dev, "could not allocate interrupt resource\n"); 339 goto fail; 340 } 341 342 if (iwi_reset(sc) != 0) { 343 device_printf(dev, "could not reset adapter\n"); 344 goto fail; 345 } 346 347 /* 348 * Allocate rings. 349 */ 350 if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 351 device_printf(dev, "could not allocate Cmd ring\n"); 352 goto fail; 353 } 354 355 for (i = 0; i < 4; i++) { 356 error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT, 357 IWI_CSR_TX1_RIDX + i * 4, 358 IWI_CSR_TX1_WIDX + i * 4); 359 if (error != 0) { 360 device_printf(dev, "could not allocate Tx ring %d\n", 361 i+i); 362 goto fail; 363 } 364 } 365 366 if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 367 device_printf(dev, "could not allocate Rx ring\n"); 368 goto fail; 369 } 370 371 iwi_wme_init(sc); 372 373 ic->ic_softc = sc; 374 ic->ic_name = device_get_nameunit(dev); 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 ic->ic_macaddr[0] = val & 0xff; 395 ic->ic_macaddr[1] = val >> 8; 396 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 397 ic->ic_macaddr[2] = val & 0xff; 398 ic->ic_macaddr[3] = val >> 8; 399 val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 400 ic->ic_macaddr[4] = val & 0xff; 401 ic->ic_macaddr[5] = val >> 8; 402 403 memset(bands, 0, sizeof(bands)); 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); 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 ic->ic_transmit = iwi_transmit; 426 ic->ic_parent = iwi_parent; 427 428 ieee80211_radiotap_attach(ic, 429 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 430 IWI_TX_RADIOTAP_PRESENT, 431 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 432 IWI_RX_RADIOTAP_PRESENT); 433 434 iwi_sysctlattach(sc); 435 iwi_ledattach(sc); 436 437 /* 438 * Hook our interrupt after all initialization is complete. 439 */ 440 #if defined(__DragonFly__) 441 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, 442 iwi_intr, sc, &sc->sc_ih, &wlan_global_serializer); 443 #else 444 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 445 NULL, iwi_intr, sc, &sc->sc_ih); 446 #endif 447 if (error != 0) { 448 device_printf(dev, "could not set up interrupt\n"); 449 goto fail; 450 } 451 452 if (bootverbose) 453 ieee80211_announce(ic); 454 455 return 0; 456 fail: 457 /* XXX fix */ 458 iwi_detach(dev); 459 return ENXIO; 460 } 461 462 static int 463 iwi_detach(device_t dev) 464 { 465 struct iwi_softc *sc = device_get_softc(dev); 466 struct ieee80211com *ic = &sc->sc_ic; 467 468 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 469 470 /* NB: do early to drain any pending tasks */ 471 ieee80211_draintask(ic, &sc->sc_radiontask); 472 ieee80211_draintask(ic, &sc->sc_radiofftask); 473 ieee80211_draintask(ic, &sc->sc_restarttask); 474 ieee80211_draintask(ic, &sc->sc_disassoctask); 475 ieee80211_draintask(ic, &sc->sc_monitortask); 476 477 iwi_stop(sc); 478 479 ieee80211_ifdetach(ic); 480 481 iwi_put_firmware(sc); 482 iwi_release_fw_dma(sc); 483 484 iwi_free_cmd_ring(sc, &sc->cmdq); 485 iwi_free_tx_ring(sc, &sc->txq[0]); 486 iwi_free_tx_ring(sc, &sc->txq[1]); 487 iwi_free_tx_ring(sc, &sc->txq[2]); 488 iwi_free_tx_ring(sc, &sc->txq[3]); 489 iwi_free_rx_ring(sc, &sc->rxq); 490 491 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq); 492 493 bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem), 494 sc->mem); 495 496 #if defined(__DragonFly__) 497 devfs_clone_bitmap_uninit(&sc->sc_unr); 498 #else 499 delete_unrhdr(sc->sc_unr); 500 #endif 501 mbufq_drain(&sc->sc_snd); 502 503 IWI_LOCK_DESTROY(sc); 504 505 return 0; 506 } 507 508 static struct ieee80211vap * 509 iwi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 510 enum ieee80211_opmode opmode, int flags, 511 const uint8_t bssid[IEEE80211_ADDR_LEN], 512 const uint8_t mac[IEEE80211_ADDR_LEN]) 513 { 514 struct iwi_softc *sc = ic->ic_softc; 515 struct iwi_vap *ivp; 516 struct ieee80211vap *vap; 517 int i; 518 519 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 520 return NULL; 521 /* 522 * Get firmware image (and possibly dma memory) on mode change. 523 */ 524 if (iwi_get_firmware(sc, opmode)) 525 return NULL; 526 /* allocate DMA memory for mapping firmware image */ 527 i = sc->fw_fw.size; 528 if (sc->fw_boot.size > i) 529 i = sc->fw_boot.size; 530 /* XXX do we dma the ucode as well ? */ 531 if (sc->fw_uc.size > i) 532 i = sc->fw_uc.size; 533 if (iwi_init_fw_dma(sc, i)) 534 return NULL; 535 536 ivp = kmalloc(sizeof(struct iwi_vap), M_80211_VAP, M_WAITOK | M_ZERO); 537 vap = &ivp->iwi_vap; 538 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 539 /* override the default, the setting comes from the linux driver */ 540 vap->iv_bmissthreshold = 24; 541 /* override with driver methods */ 542 ivp->iwi_newstate = vap->iv_newstate; 543 vap->iv_newstate = iwi_newstate; 544 545 /* complete setup */ 546 ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status, 547 mac); 548 ic->ic_opmode = opmode; 549 return vap; 550 } 551 552 static void 553 iwi_vap_delete(struct ieee80211vap *vap) 554 { 555 struct iwi_vap *ivp = IWI_VAP(vap); 556 557 ieee80211_vap_detach(vap); 558 kfree(ivp, M_80211_VAP); 559 } 560 561 static void 562 iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 563 { 564 if (error != 0) 565 return; 566 567 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 568 569 *(bus_addr_t *)arg = segs[0].ds_addr; 570 } 571 572 static int 573 iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) 574 { 575 int error; 576 577 ring->count = count; 578 ring->queued = 0; 579 ring->cur = ring->next = 0; 580 581 #if defined(__DragonFly__) 582 error = bus_dma_tag_create(NULL, 4, 0, 583 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, 584 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 585 0 , &ring->desc_dmat); 586 #else 587 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 588 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 589 count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 0, 590 NULL, NULL, &ring->desc_dmat); 591 #endif 592 if (error != 0) { 593 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 594 goto fail; 595 } 596 597 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 598 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 599 if (error != 0) { 600 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 601 goto fail; 602 } 603 604 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 605 count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 606 if (error != 0) { 607 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 608 goto fail; 609 } 610 611 return 0; 612 613 fail: iwi_free_cmd_ring(sc, ring); 614 return error; 615 } 616 617 static void 618 iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 619 { 620 ring->queued = 0; 621 ring->cur = ring->next = 0; 622 } 623 624 static void 625 iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 626 { 627 if (ring->desc != NULL) { 628 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 629 BUS_DMASYNC_POSTWRITE); 630 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 631 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 632 } 633 634 if (ring->desc_dmat != NULL) 635 bus_dma_tag_destroy(ring->desc_dmat); 636 } 637 638 static int 639 iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, 640 bus_addr_t csr_ridx, bus_addr_t csr_widx) 641 { 642 int i, error; 643 644 ring->count = count; 645 ring->queued = 0; 646 ring->cur = ring->next = 0; 647 ring->csr_ridx = csr_ridx; 648 ring->csr_widx = csr_widx; 649 650 #if defined(__DragonFly__) 651 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 652 BUS_SPACE_MAXADDR, count * IWI_TX_DESC_SIZE, 1, 653 count * IWI_TX_DESC_SIZE, 0, &ring->desc_dmat); 654 #else 655 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 656 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 657 count * IWI_TX_DESC_SIZE, 1, count * IWI_TX_DESC_SIZE, 0, NULL, 658 NULL, &ring->desc_dmat); 659 #endif 660 if (error != 0) { 661 device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 662 goto fail; 663 } 664 665 error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 666 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 667 if (error != 0) { 668 device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 669 goto fail; 670 } 671 672 error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 673 count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 674 if (error != 0) { 675 device_printf(sc->sc_dev, "could not load desc DMA map\n"); 676 goto fail; 677 } 678 679 ring->data = kmalloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 680 M_WAITOK | M_ZERO); 681 if (ring->data == NULL) { 682 device_printf(sc->sc_dev, "could not allocate soft data\n"); 683 error = ENOMEM; 684 goto fail; 685 } 686 687 #if defined(__DragonFly__) 688 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 689 BUS_SPACE_MAXADDR, MCLBYTES, IWI_MAX_NSEG, 690 MCLBYTES, 0, &ring->data_dmat); 691 #else 692 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 693 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 694 IWI_MAX_NSEG, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 695 #endif 696 if (error != 0) { 697 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 698 goto fail; 699 } 700 701 for (i = 0; i < count; i++) { 702 error = bus_dmamap_create(ring->data_dmat, 0, 703 &ring->data[i].map); 704 if (error != 0) { 705 device_printf(sc->sc_dev, "could not create DMA map\n"); 706 goto fail; 707 } 708 } 709 710 return 0; 711 712 fail: iwi_free_tx_ring(sc, ring); 713 return error; 714 } 715 716 static void 717 iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 718 { 719 struct iwi_tx_data *data; 720 int i; 721 722 for (i = 0; i < ring->count; i++) { 723 data = &ring->data[i]; 724 725 if (data->m != NULL) { 726 bus_dmamap_sync(ring->data_dmat, data->map, 727 BUS_DMASYNC_POSTWRITE); 728 bus_dmamap_unload(ring->data_dmat, data->map); 729 m_freem(data->m); 730 data->m = NULL; 731 } 732 733 if (data->ni != NULL) { 734 ieee80211_free_node(data->ni); 735 data->ni = NULL; 736 } 737 } 738 739 ring->queued = 0; 740 ring->cur = ring->next = 0; 741 } 742 743 static void 744 iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 745 { 746 struct iwi_tx_data *data; 747 int i; 748 749 if (ring->desc != NULL) { 750 bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 751 BUS_DMASYNC_POSTWRITE); 752 bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 753 bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 754 } 755 756 if (ring->desc_dmat != NULL) 757 bus_dma_tag_destroy(ring->desc_dmat); 758 759 if (ring->data != NULL) { 760 for (i = 0; i < ring->count; i++) { 761 data = &ring->data[i]; 762 763 if (data->m != NULL) { 764 bus_dmamap_sync(ring->data_dmat, data->map, 765 BUS_DMASYNC_POSTWRITE); 766 bus_dmamap_unload(ring->data_dmat, data->map); 767 m_freem(data->m); 768 } 769 770 if (data->ni != NULL) 771 ieee80211_free_node(data->ni); 772 773 if (data->map != NULL) 774 bus_dmamap_destroy(ring->data_dmat, data->map); 775 } 776 777 kfree(ring->data, M_DEVBUF); 778 } 779 780 if (ring->data_dmat != NULL) 781 bus_dma_tag_destroy(ring->data_dmat); 782 } 783 784 static int 785 iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 786 { 787 struct iwi_rx_data *data; 788 int i, error; 789 790 ring->count = count; 791 ring->cur = 0; 792 793 ring->data = kmalloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 794 M_WAITOK | M_ZERO); 795 if (ring->data == NULL) { 796 device_printf(sc->sc_dev, "could not allocate soft data\n"); 797 error = ENOMEM; 798 goto fail; 799 } 800 801 #if defined(__DragonFly__) 802 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 803 BUS_SPACE_MAXADDR, MCLBYTES, 1, MCLBYTES, 804 0, &ring->data_dmat); 805 #else 806 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 807 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 808 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 809 #endif 810 if (error != 0) { 811 device_printf(sc->sc_dev, "could not create data DMA tag\n"); 812 goto fail; 813 } 814 815 for (i = 0; i < count; i++) { 816 data = &ring->data[i]; 817 818 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 819 if (error != 0) { 820 device_printf(sc->sc_dev, "could not create DMA map\n"); 821 goto fail; 822 } 823 824 data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 825 if (data->m == NULL) { 826 device_printf(sc->sc_dev, 827 "could not allocate rx mbuf\n"); 828 error = ENOMEM; 829 goto fail; 830 } 831 832 error = bus_dmamap_load(ring->data_dmat, data->map, 833 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 834 &data->physaddr, 0); 835 if (error != 0) { 836 device_printf(sc->sc_dev, 837 "could not load rx buf DMA map"); 838 goto fail; 839 } 840 841 data->reg = IWI_CSR_RX_BASE + i * 4; 842 } 843 844 return 0; 845 846 fail: iwi_free_rx_ring(sc, ring); 847 return error; 848 } 849 850 static void 851 iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 852 { 853 ring->cur = 0; 854 } 855 856 static void 857 iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 858 { 859 struct iwi_rx_data *data; 860 int i; 861 862 if (ring->data != NULL) { 863 for (i = 0; i < ring->count; i++) { 864 data = &ring->data[i]; 865 866 if (data->m != NULL) { 867 bus_dmamap_sync(ring->data_dmat, data->map, 868 BUS_DMASYNC_POSTREAD); 869 bus_dmamap_unload(ring->data_dmat, data->map); 870 m_freem(data->m); 871 } 872 873 if (data->map != NULL) 874 bus_dmamap_destroy(ring->data_dmat, data->map); 875 } 876 877 kfree(ring->data, M_DEVBUF); 878 } 879 880 if (ring->data_dmat != NULL) 881 bus_dma_tag_destroy(ring->data_dmat); 882 } 883 884 static int 885 iwi_shutdown(device_t dev) 886 { 887 struct iwi_softc *sc = device_get_softc(dev); 888 889 iwi_stop(sc); 890 iwi_put_firmware(sc); /* ??? XXX */ 891 892 return 0; 893 } 894 895 static int 896 iwi_suspend(device_t dev) 897 { 898 struct iwi_softc *sc = device_get_softc(dev); 899 struct ieee80211com *ic = &sc->sc_ic; 900 901 ieee80211_suspend_all(ic); 902 return 0; 903 } 904 905 static int 906 iwi_resume(device_t dev) 907 { 908 struct iwi_softc *sc = device_get_softc(dev); 909 struct ieee80211com *ic = &sc->sc_ic; 910 911 pci_write_config(dev, 0x41, 0, 1); 912 913 ieee80211_resume_all(ic); 914 return 0; 915 } 916 917 static struct ieee80211_node * 918 iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 919 { 920 struct iwi_node *in; 921 922 in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_INTWAIT | M_ZERO); 923 if (in == NULL) 924 return NULL; 925 /* XXX assign sta table entry for adhoc */ 926 in->in_station = -1; 927 928 return &in->in_node; 929 } 930 931 static void 932 iwi_node_free(struct ieee80211_node *ni) 933 { 934 struct ieee80211com *ic = ni->ni_ic; 935 struct iwi_softc *sc = ic->ic_softc; 936 struct iwi_node *in = (struct iwi_node *)ni; 937 938 if (in->in_station != -1) { 939 #if defined(__DragonFly__) 940 DPRINTF(("%s mac %s station %u\n", __func__, 941 ether_sprintf(ni->ni_macaddr), in->in_station)); 942 #else 943 DPRINTF(("%s mac %6D station %u\n", __func__, 944 ni->ni_macaddr, ":", in->in_station)); 945 #endif 946 #if defined(__DragonFly__) 947 devfs_clone_bitmap_put(&sc->sc_unr, in->in_station); 948 #else 949 free_unr(sc->sc_unr, in->in_station); 950 #endif 951 } 952 953 sc->sc_node_free(ni); 954 } 955 956 /* 957 * Convert h/w rate code to IEEE rate code. 958 */ 959 static int 960 iwi_cvtrate(int iwirate) 961 { 962 switch (iwirate) { 963 case IWI_RATE_DS1: return 2; 964 case IWI_RATE_DS2: return 4; 965 case IWI_RATE_DS5: return 11; 966 case IWI_RATE_DS11: return 22; 967 case IWI_RATE_OFDM6: return 12; 968 case IWI_RATE_OFDM9: return 18; 969 case IWI_RATE_OFDM12: return 24; 970 case IWI_RATE_OFDM18: return 36; 971 case IWI_RATE_OFDM24: return 48; 972 case IWI_RATE_OFDM36: return 72; 973 case IWI_RATE_OFDM48: return 96; 974 case IWI_RATE_OFDM54: return 108; 975 } 976 return 0; 977 } 978 979 /* 980 * The firmware automatically adapts the transmit speed. We report its current 981 * value here. 982 */ 983 static void 984 iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 985 { 986 struct ieee80211vap *vap = ifp->if_softc; 987 struct ieee80211com *ic = vap->iv_ic; 988 struct iwi_softc *sc = ic->ic_softc; 989 struct ieee80211_node *ni; 990 991 /* read current transmission rate from adapter */ 992 ni = ieee80211_ref_node(vap->iv_bss); 993 ni->ni_txrate = 994 iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); 995 ieee80211_free_node(ni); 996 ieee80211_media_status(ifp, imr); 997 } 998 999 static int 1000 iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1001 { 1002 struct iwi_vap *ivp = IWI_VAP(vap); 1003 struct ieee80211com *ic = vap->iv_ic; 1004 struct iwi_softc *sc = ic->ic_softc; 1005 IWI_LOCK_DECL; 1006 1007 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 1008 ieee80211_state_name[vap->iv_state], 1009 ieee80211_state_name[nstate], sc->flags)); 1010 1011 IEEE80211_UNLOCK(ic); 1012 IWI_LOCK(sc); 1013 switch (nstate) { 1014 case IEEE80211_S_INIT: 1015 /* 1016 * NB: don't try to do this if iwi_stop_master has 1017 * shutdown the firmware and disabled interrupts. 1018 */ 1019 if (vap->iv_state == IEEE80211_S_RUN && 1020 (sc->flags & IWI_FLAG_FW_INITED)) 1021 iwi_disassociate(sc, 0); 1022 break; 1023 case IEEE80211_S_AUTH: 1024 iwi_auth_and_assoc(sc, vap); 1025 break; 1026 case IEEE80211_S_RUN: 1027 if (vap->iv_opmode == IEEE80211_M_IBSS && 1028 vap->iv_state == IEEE80211_S_SCAN) { 1029 /* 1030 * XXX when joining an ibss network we are called 1031 * with a SCAN -> RUN transition on scan complete. 1032 * Use that to call iwi_auth_and_assoc. On completing 1033 * the join we are then called again with an 1034 * AUTH -> RUN transition and we want to do nothing. 1035 * This is all totally bogus and needs to be redone. 1036 */ 1037 iwi_auth_and_assoc(sc, vap); 1038 } else if (vap->iv_opmode == IEEE80211_M_MONITOR) 1039 ieee80211_runtask(ic, &sc->sc_monitortask); 1040 break; 1041 case IEEE80211_S_ASSOC: 1042 /* 1043 * If we are transitioning from AUTH then just wait 1044 * for the ASSOC status to come back from the firmware. 1045 * Otherwise we need to issue the association request. 1046 */ 1047 if (vap->iv_state == IEEE80211_S_AUTH) 1048 break; 1049 iwi_auth_and_assoc(sc, vap); 1050 break; 1051 default: 1052 break; 1053 } 1054 IWI_UNLOCK(sc); 1055 IEEE80211_LOCK(ic); 1056 return ivp->iwi_newstate(vap, nstate, arg); 1057 } 1058 1059 /* 1060 * WME parameters coming from IEEE 802.11e specification. These values are 1061 * already declared in ieee80211_proto.c, but they are static so they can't 1062 * be reused here. 1063 */ 1064 static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 1065 { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ 1066 { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ 1067 { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ 1068 { 0, 2, 3, 4, 102 } /* WME_AC_VO */ 1069 }; 1070 1071 static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 1072 { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ 1073 { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ 1074 { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ 1075 { 0, 2, 2, 3, 47 } /* WME_AC_VO */ 1076 }; 1077 #define IWI_EXP2(v) htole16((1 << (v)) - 1) 1078 #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1079 1080 static void 1081 iwi_wme_init(struct iwi_softc *sc) 1082 { 1083 const struct wmeParams *wmep; 1084 int ac; 1085 1086 memset(sc->wme, 0, sizeof sc->wme); 1087 for (ac = 0; ac < WME_NUM_AC; ac++) { 1088 /* set WME values for CCK modulation */ 1089 wmep = &iwi_wme_cck_params[ac]; 1090 sc->wme[1].aifsn[ac] = wmep->wmep_aifsn; 1091 sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1092 sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1093 sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1094 sc->wme[1].acm[ac] = wmep->wmep_acm; 1095 1096 /* set WME values for OFDM modulation */ 1097 wmep = &iwi_wme_ofdm_params[ac]; 1098 sc->wme[2].aifsn[ac] = wmep->wmep_aifsn; 1099 sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1100 sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1101 sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1102 sc->wme[2].acm[ac] = wmep->wmep_acm; 1103 } 1104 } 1105 1106 static int 1107 iwi_wme_setparams(struct iwi_softc *sc) 1108 { 1109 struct ieee80211com *ic = &sc->sc_ic; 1110 const struct wmeParams *wmep; 1111 int ac; 1112 1113 for (ac = 0; ac < WME_NUM_AC; ac++) { 1114 /* set WME values for current operating mode */ 1115 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1116 sc->wme[0].aifsn[ac] = wmep->wmep_aifsn; 1117 sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1118 sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1119 sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1120 sc->wme[0].acm[ac] = wmep->wmep_acm; 1121 } 1122 1123 DPRINTF(("Setting WME parameters\n")); 1124 return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme); 1125 } 1126 #undef IWI_USEC 1127 #undef IWI_EXP2 1128 1129 static int 1130 iwi_wme_update(struct ieee80211com *ic) 1131 { 1132 struct iwi_softc *sc = ic->ic_softc; 1133 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1134 IWI_LOCK_DECL; 1135 1136 /* 1137 * We may be called to update the WME parameters in 1138 * the adapter at various places. If we're already 1139 * associated then initiate the request immediately; 1140 * otherwise we assume the params will get sent down 1141 * to the adapter as part of the work iwi_auth_and_assoc 1142 * does. 1143 */ 1144 if (vap->iv_state == IEEE80211_S_RUN) { 1145 IWI_LOCK(sc); 1146 iwi_wme_setparams(sc); 1147 IWI_UNLOCK(sc); 1148 } 1149 return (0); 1150 } 1151 1152 static int 1153 iwi_wme_setie(struct iwi_softc *sc) 1154 { 1155 struct ieee80211_wme_info wme; 1156 1157 memset(&wme, 0, sizeof wme); 1158 wme.wme_id = IEEE80211_ELEMID_VENDOR; 1159 wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 1160 wme.wme_oui[0] = 0x00; 1161 wme.wme_oui[1] = 0x50; 1162 wme.wme_oui[2] = 0xf2; 1163 wme.wme_type = WME_OUI_TYPE; 1164 wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 1165 wme.wme_version = WME_VERSION; 1166 wme.wme_info = 0; 1167 1168 DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 1169 return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme); 1170 } 1171 1172 /* 1173 * Read 16 bits at address 'addr' from the serial EEPROM. 1174 */ 1175 static uint16_t 1176 iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1177 { 1178 uint32_t tmp; 1179 uint16_t val; 1180 int n; 1181 1182 /* clock C once before the first command */ 1183 IWI_EEPROM_CTL(sc, 0); 1184 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1185 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1186 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1187 1188 /* write start bit (1) */ 1189 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1190 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1191 1192 /* write READ opcode (10) */ 1193 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1194 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1195 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1196 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1197 1198 /* write address A7-A0 */ 1199 for (n = 7; n >= 0; n--) { 1200 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1201 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1202 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1203 (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1204 } 1205 1206 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1207 1208 /* read data Q15-Q0 */ 1209 val = 0; 1210 for (n = 15; n >= 0; n--) { 1211 IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1212 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1213 tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1214 val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1215 } 1216 1217 IWI_EEPROM_CTL(sc, 0); 1218 1219 /* clear Chip Select and clock C */ 1220 IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1221 IWI_EEPROM_CTL(sc, 0); 1222 IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1223 1224 return val; 1225 } 1226 1227 static void 1228 iwi_setcurchan(struct iwi_softc *sc, int chan) 1229 { 1230 struct ieee80211com *ic = &sc->sc_ic; 1231 1232 sc->curchan = chan; 1233 ieee80211_radiotap_chan_change(ic); 1234 } 1235 1236 static void 1237 iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1238 struct iwi_frame *frame) 1239 { 1240 struct ieee80211com *ic = &sc->sc_ic; 1241 struct mbuf *mnew, *m; 1242 struct ieee80211_node *ni; 1243 int type, error, framelen; 1244 int8_t rssi, nf; 1245 IWI_LOCK_DECL; 1246 1247 framelen = le16toh(frame->len); 1248 if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) { 1249 /* 1250 * XXX >MCLBYTES is bogus as it means the h/w dma'd 1251 * out of bounds; need to figure out how to limit 1252 * frame size in the firmware 1253 */ 1254 /* XXX stat */ 1255 DPRINTFN(1, 1256 ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1257 le16toh(frame->len), frame->chan, frame->rssi, 1258 frame->rssi_dbm)); 1259 return; 1260 } 1261 1262 DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", 1263 le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm)); 1264 1265 if (frame->chan != sc->curchan) 1266 iwi_setcurchan(sc, frame->chan); 1267 1268 /* 1269 * Try to allocate a new mbuf for this ring element and load it before 1270 * processing the current mbuf. If the ring element cannot be loaded, 1271 * drop the received packet and reuse the old mbuf. In the unlikely 1272 * case that the old mbuf can't be reloaded either, explicitly panic. 1273 */ 1274 mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1275 if (mnew == NULL) { 1276 #if defined(__DragonFly__) 1277 ++ic->ic_ierrors; 1278 #else 1279 counter_u64_add(ic->ic_ierrors, 1); 1280 #endif 1281 return; 1282 } 1283 1284 bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1285 1286 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1287 mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, 1288 0); 1289 if (error != 0) { 1290 m_freem(mnew); 1291 1292 /* try to reload the old mbuf */ 1293 error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1294 mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 1295 &data->physaddr, 0); 1296 if (error != 0) { 1297 /* very unlikely that it will fail... */ 1298 panic("%s: could not load old rx mbuf", 1299 device_get_name(sc->sc_dev)); 1300 } 1301 #if defined(__DragonFly__) 1302 ++ic->ic_ierrors; 1303 #else 1304 counter_u64_add(ic->ic_ierrors, 1); 1305 #endif 1306 return; 1307 } 1308 1309 /* 1310 * New mbuf successfully loaded, update Rx ring and continue 1311 * processing. 1312 */ 1313 m = data->m; 1314 data->m = mnew; 1315 CSR_WRITE_4(sc, data->reg, data->physaddr); 1316 1317 /* finalize mbuf */ 1318 m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1319 sizeof (struct iwi_frame) + framelen; 1320 1321 m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1322 1323 rssi = frame->rssi_dbm; 1324 nf = -95; 1325 if (ieee80211_radiotap_active(ic)) { 1326 struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1327 1328 tap->wr_flags = 0; 1329 tap->wr_antsignal = rssi; 1330 tap->wr_antnoise = nf; 1331 tap->wr_rate = iwi_cvtrate(frame->rate); 1332 tap->wr_antenna = frame->antenna; 1333 } 1334 IWI_UNLOCK(sc); 1335 1336 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1337 if (ni != NULL) { 1338 type = ieee80211_input(ni, m, rssi, nf); 1339 ieee80211_free_node(ni); 1340 } else 1341 type = ieee80211_input_all(ic, m, rssi, nf); 1342 1343 IWI_LOCK(sc); 1344 if (sc->sc_softled) { 1345 /* 1346 * Blink for any data frame. Otherwise do a 1347 * heartbeat-style blink when idle. The latter 1348 * is mainly for station mode where we depend on 1349 * periodic beacon frames to trigger the poll event. 1350 */ 1351 if (type == IEEE80211_FC0_TYPE_DATA) { 1352 sc->sc_rxrate = frame->rate; 1353 iwi_led_event(sc, IWI_LED_RX); 1354 } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle) 1355 iwi_led_event(sc, IWI_LED_POLL); 1356 } 1357 } 1358 1359 /* 1360 * Check for an association response frame to see if QoS 1361 * has been negotiated. We parse just enough to figure 1362 * out if we're supposed to use QoS. The proper solution 1363 * is to pass the frame up so ieee80211_input can do the 1364 * work but that's made hard by how things currently are 1365 * done in the driver. 1366 */ 1367 static void 1368 iwi_checkforqos(struct ieee80211vap *vap, 1369 const struct ieee80211_frame *wh, int len) 1370 { 1371 #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) 1372 const uint8_t *frm, *efrm, *wme; 1373 struct ieee80211_node *ni; 1374 uint16_t capinfo, status, associd; 1375 1376 /* NB: +8 for capinfo, status, associd, and first ie */ 1377 if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) || 1378 SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP) 1379 return; 1380 /* 1381 * asresp frame format 1382 * [2] capability information 1383 * [2] status 1384 * [2] association ID 1385 * [tlv] supported rates 1386 * [tlv] extended supported rates 1387 * [tlv] WME 1388 */ 1389 frm = (const uint8_t *)&wh[1]; 1390 efrm = ((const uint8_t *) wh) + len; 1391 1392 capinfo = le16toh(*(const uint16_t *)frm); 1393 frm += 2; 1394 status = le16toh(*(const uint16_t *)frm); 1395 frm += 2; 1396 associd = le16toh(*(const uint16_t *)frm); 1397 frm += 2; 1398 1399 wme = NULL; 1400 while (efrm - frm > 1) { 1401 IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); 1402 switch (*frm) { 1403 case IEEE80211_ELEMID_VENDOR: 1404 if (iswmeoui(frm)) 1405 wme = frm; 1406 break; 1407 } 1408 frm += frm[1] + 2; 1409 } 1410 1411 ni = ieee80211_ref_node(vap->iv_bss); 1412 ni->ni_capinfo = capinfo; 1413 ni->ni_associd = associd & 0x3fff; 1414 if (wme != NULL) 1415 ni->ni_flags |= IEEE80211_NODE_QOS; 1416 else 1417 ni->ni_flags &= ~IEEE80211_NODE_QOS; 1418 ieee80211_free_node(ni); 1419 #undef SUBTYPE 1420 } 1421 1422 static void 1423 iwi_notif_link_quality(struct iwi_softc *sc, struct iwi_notif *notif) 1424 { 1425 struct iwi_notif_link_quality *lq; 1426 int len; 1427 1428 len = le16toh(notif->len); 1429 1430 DPRINTFN(5, ("Notification (%u) - len=%d, sizeof=%zu\n", 1431 notif->type, 1432 len, 1433 sizeof(struct iwi_notif_link_quality) 1434 )); 1435 1436 /* enforce length */ 1437 if (len != sizeof(struct iwi_notif_link_quality)) { 1438 DPRINTFN(5, ("Notification: (%u) too short (%d)\n", 1439 notif->type, 1440 len)); 1441 return; 1442 } 1443 1444 lq = (struct iwi_notif_link_quality *)(notif + 1); 1445 memcpy(&sc->sc_linkqual, lq, sizeof(sc->sc_linkqual)); 1446 sc->sc_linkqual_valid = 1; 1447 } 1448 1449 /* 1450 * Task queue callbacks for iwi_notification_intr used to avoid LOR's. 1451 */ 1452 1453 static void 1454 iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1455 { 1456 struct ieee80211com *ic = &sc->sc_ic; 1457 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1458 struct iwi_notif_scan_channel *chan; 1459 struct iwi_notif_scan_complete *scan; 1460 struct iwi_notif_authentication *auth; 1461 struct iwi_notif_association *assoc; 1462 struct iwi_notif_beacon_state *beacon; 1463 1464 switch (notif->type) { 1465 case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1466 chan = (struct iwi_notif_scan_channel *)(notif + 1); 1467 1468 DPRINTFN(3, ("Scan of channel %u complete (%u)\n", 1469 ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan)); 1470 1471 /* Reset the timer, the scan is still going */ 1472 sc->sc_state_timer = 3; 1473 break; 1474 1475 case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1476 scan = (struct iwi_notif_scan_complete *)(notif + 1); 1477 1478 DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1479 scan->status)); 1480 1481 IWI_STATE_END(sc, IWI_FW_SCANNING); 1482 1483 /* 1484 * Monitor mode works by doing a passive scan to set 1485 * the channel and enable rx. Because we don't want 1486 * to abort a scan lest the firmware crash we scan 1487 * for a short period of time and automatically restart 1488 * the scan when notified the sweep has completed. 1489 */ 1490 if (vap->iv_opmode == IEEE80211_M_MONITOR) { 1491 ieee80211_runtask(ic, &sc->sc_monitortask); 1492 break; 1493 } 1494 1495 if (scan->status == IWI_SCAN_COMPLETED) { 1496 /* NB: don't need to defer, net80211 does it for us */ 1497 ieee80211_scan_next(vap); 1498 } 1499 break; 1500 1501 case IWI_NOTIF_TYPE_AUTHENTICATION: 1502 auth = (struct iwi_notif_authentication *)(notif + 1); 1503 switch (auth->state) { 1504 case IWI_AUTH_SUCCESS: 1505 DPRINTFN(2, ("Authentication succeeeded\n")); 1506 ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1); 1507 break; 1508 case IWI_AUTH_FAIL: 1509 /* 1510 * These are delivered as an unsolicited deauth 1511 * (e.g. due to inactivity) or in response to an 1512 * associate request. 1513 */ 1514 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1515 if (vap->iv_state != IEEE80211_S_RUN) { 1516 DPRINTFN(2, ("Authentication failed\n")); 1517 vap->iv_stats.is_rx_auth_fail++; 1518 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1519 } else { 1520 DPRINTFN(2, ("Deauthenticated\n")); 1521 vap->iv_stats.is_rx_deauth++; 1522 } 1523 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1524 break; 1525 case IWI_AUTH_SENT_1: 1526 case IWI_AUTH_RECV_2: 1527 case IWI_AUTH_SEQ1_PASS: 1528 break; 1529 case IWI_AUTH_SEQ1_FAIL: 1530 DPRINTFN(2, ("Initial authentication handshake failed; " 1531 "you probably need shared key\n")); 1532 vap->iv_stats.is_rx_auth_fail++; 1533 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1534 /* XXX retry shared key when in auto */ 1535 break; 1536 default: 1537 device_printf(sc->sc_dev, 1538 "unknown authentication state %u\n", auth->state); 1539 break; 1540 } 1541 break; 1542 1543 case IWI_NOTIF_TYPE_ASSOCIATION: 1544 assoc = (struct iwi_notif_association *)(notif + 1); 1545 switch (assoc->state) { 1546 case IWI_AUTH_SUCCESS: 1547 /* re-association, do nothing */ 1548 break; 1549 case IWI_ASSOC_SUCCESS: 1550 DPRINTFN(2, ("Association succeeded\n")); 1551 sc->flags |= IWI_FLAG_ASSOCIATED; 1552 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1553 iwi_checkforqos(vap, 1554 (const struct ieee80211_frame *)(assoc+1), 1555 le16toh(notif->len) - sizeof(*assoc) - 1); 1556 ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 1557 break; 1558 case IWI_ASSOC_INIT: 1559 sc->flags &= ~IWI_FLAG_ASSOCIATED; 1560 switch (sc->fw_state) { 1561 case IWI_FW_ASSOCIATING: 1562 DPRINTFN(2, ("Association failed\n")); 1563 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 1564 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1565 break; 1566 1567 case IWI_FW_DISASSOCIATING: 1568 DPRINTFN(2, ("Dissassociated\n")); 1569 IWI_STATE_END(sc, IWI_FW_DISASSOCIATING); 1570 vap->iv_stats.is_rx_disassoc++; 1571 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1572 break; 1573 } 1574 break; 1575 default: 1576 device_printf(sc->sc_dev, 1577 "unknown association state %u\n", assoc->state); 1578 break; 1579 } 1580 break; 1581 1582 case IWI_NOTIF_TYPE_BEACON: 1583 /* XXX check struct length */ 1584 beacon = (struct iwi_notif_beacon_state *)(notif + 1); 1585 1586 DPRINTFN(5, ("Beacon state (%u, %u)\n", 1587 beacon->state, le32toh(beacon->number))); 1588 1589 if (beacon->state == IWI_BEACON_MISS) { 1590 /* 1591 * The firmware notifies us of every beacon miss 1592 * so we need to track the count against the 1593 * configured threshold before notifying the 1594 * 802.11 layer. 1595 * XXX try to roam, drop assoc only on much higher count 1596 */ 1597 if (le32toh(beacon->number) >= vap->iv_bmissthreshold) { 1598 DPRINTF(("Beacon miss: %u >= %u\n", 1599 le32toh(beacon->number), 1600 vap->iv_bmissthreshold)); 1601 vap->iv_stats.is_beacon_miss++; 1602 /* 1603 * It's pointless to notify the 802.11 layer 1604 * as it'll try to send a probe request (which 1605 * we'll discard) and then timeout and drop us 1606 * into scan state. Instead tell the firmware 1607 * to disassociate and then on completion we'll 1608 * kick the state machine to scan. 1609 */ 1610 ieee80211_runtask(ic, &sc->sc_disassoctask); 1611 } 1612 } 1613 break; 1614 1615 case IWI_NOTIF_TYPE_CALIBRATION: 1616 case IWI_NOTIF_TYPE_NOISE: 1617 /* XXX handle? */ 1618 DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1619 break; 1620 case IWI_NOTIF_TYPE_LINK_QUALITY: 1621 iwi_notif_link_quality(sc, notif); 1622 break; 1623 1624 default: 1625 DPRINTF(("unknown notification type %u flags 0x%x len %u\n", 1626 notif->type, notif->flags, le16toh(notif->len))); 1627 break; 1628 } 1629 } 1630 1631 static void 1632 iwi_rx_intr(struct iwi_softc *sc) 1633 { 1634 struct iwi_rx_data *data; 1635 struct iwi_hdr *hdr; 1636 uint32_t hw; 1637 1638 hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1639 1640 for (; sc->rxq.cur != hw;) { 1641 data = &sc->rxq.data[sc->rxq.cur]; 1642 1643 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1644 BUS_DMASYNC_POSTREAD); 1645 1646 hdr = mtod(data->m, struct iwi_hdr *); 1647 1648 switch (hdr->type) { 1649 case IWI_HDR_TYPE_FRAME: 1650 iwi_frame_intr(sc, data, sc->rxq.cur, 1651 (struct iwi_frame *)(hdr + 1)); 1652 break; 1653 1654 case IWI_HDR_TYPE_NOTIF: 1655 iwi_notification_intr(sc, 1656 (struct iwi_notif *)(hdr + 1)); 1657 break; 1658 1659 default: 1660 device_printf(sc->sc_dev, "unknown hdr type %u\n", 1661 hdr->type); 1662 } 1663 1664 DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1665 1666 sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; 1667 } 1668 1669 /* tell the firmware what we have processed */ 1670 hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; 1671 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1672 } 1673 1674 static void 1675 iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1676 { 1677 struct iwi_tx_data *data; 1678 uint32_t hw; 1679 1680 hw = CSR_READ_4(sc, txq->csr_ridx); 1681 1682 while (txq->next != hw) { 1683 data = &txq->data[txq->next]; 1684 DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1685 bus_dmamap_sync(txq->data_dmat, data->map, 1686 BUS_DMASYNC_POSTWRITE); 1687 bus_dmamap_unload(txq->data_dmat, data->map); 1688 ieee80211_tx_complete(data->ni, data->m, 0); 1689 data->ni = NULL; 1690 data->m = NULL; 1691 txq->queued--; 1692 txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; 1693 } 1694 sc->sc_tx_timer = 0; 1695 if (sc->sc_softled) 1696 iwi_led_event(sc, IWI_LED_TX); 1697 iwi_start(sc); 1698 } 1699 1700 static void 1701 iwi_fatal_error_intr(struct iwi_softc *sc) 1702 { 1703 struct ieee80211com *ic = &sc->sc_ic; 1704 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1705 1706 device_printf(sc->sc_dev, "firmware error\n"); 1707 if (vap != NULL) 1708 ieee80211_cancel_scan(vap); 1709 ieee80211_runtask(ic, &sc->sc_restarttask); 1710 1711 sc->flags &= ~IWI_FLAG_BUSY; 1712 sc->sc_busy_timer = 0; 1713 wakeup(sc); 1714 } 1715 1716 static void 1717 iwi_radio_off_intr(struct iwi_softc *sc) 1718 { 1719 1720 ieee80211_runtask(&sc->sc_ic, &sc->sc_radiofftask); 1721 } 1722 1723 static void 1724 iwi_intr(void *arg) 1725 { 1726 struct iwi_softc *sc = arg; 1727 uint32_t r; 1728 IWI_LOCK_DECL; 1729 1730 IWI_LOCK(sc); 1731 1732 if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { 1733 IWI_UNLOCK(sc); 1734 return; 1735 } 1736 1737 /* acknowledge interrupts */ 1738 CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1739 1740 if (r & IWI_INTR_FATAL_ERROR) { 1741 iwi_fatal_error_intr(sc); 1742 goto done; 1743 } 1744 1745 if (r & IWI_INTR_FW_INITED) { 1746 if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1747 wakeup(sc); 1748 } 1749 1750 if (r & IWI_INTR_RADIO_OFF) 1751 iwi_radio_off_intr(sc); 1752 1753 if (r & IWI_INTR_CMD_DONE) { 1754 sc->flags &= ~IWI_FLAG_BUSY; 1755 sc->sc_busy_timer = 0; 1756 wakeup(sc); 1757 } 1758 1759 if (r & IWI_INTR_TX1_DONE) 1760 iwi_tx_intr(sc, &sc->txq[0]); 1761 1762 if (r & IWI_INTR_TX2_DONE) 1763 iwi_tx_intr(sc, &sc->txq[1]); 1764 1765 if (r & IWI_INTR_TX3_DONE) 1766 iwi_tx_intr(sc, &sc->txq[2]); 1767 1768 if (r & IWI_INTR_TX4_DONE) 1769 iwi_tx_intr(sc, &sc->txq[3]); 1770 1771 if (r & IWI_INTR_RX_DONE) 1772 iwi_rx_intr(sc); 1773 1774 if (r & IWI_INTR_PARITY_ERROR) { 1775 /* XXX rate-limit */ 1776 device_printf(sc->sc_dev, "parity error\n"); 1777 } 1778 done: 1779 IWI_UNLOCK(sc); 1780 } 1781 1782 static int 1783 iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len) 1784 { 1785 struct iwi_cmd_desc *desc; 1786 1787 IWI_LOCK_ASSERT(sc); 1788 1789 if (sc->flags & IWI_FLAG_BUSY) { 1790 device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", 1791 __func__, type); 1792 return EAGAIN; 1793 } 1794 sc->flags |= IWI_FLAG_BUSY; 1795 sc->sc_busy_timer = 2; 1796 1797 desc = &sc->cmdq.desc[sc->cmdq.cur]; 1798 1799 desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1800 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1801 desc->type = type; 1802 desc->len = len; 1803 memcpy(desc->data, data, len); 1804 1805 bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, 1806 BUS_DMASYNC_PREWRITE); 1807 1808 DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, 1809 type, len)); 1810 1811 sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; 1812 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1813 1814 #if defined(__DragonFly__) 1815 return lksleep(sc, &sc->sc_lock, 0, "iwicmd", hz); 1816 #else 1817 return msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz); 1818 #endif 1819 } 1820 1821 static void 1822 iwi_write_ibssnode(struct iwi_softc *sc, 1823 const u_int8_t addr[IEEE80211_ADDR_LEN], int entry) 1824 { 1825 struct iwi_ibssnode node; 1826 1827 /* write node information into NIC memory */ 1828 memset(&node, 0, sizeof node); 1829 IEEE80211_ADDR_COPY(node.bssid, addr); 1830 #if defined(__DragonFly__) 1831 DPRINTF(("%s mac %s station %u\n", __func__, ether_sprintf(node.bssid), 1832 entry)); 1833 #else 1834 DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry)); 1835 #endif 1836 1837 CSR_WRITE_REGION_1(sc, 1838 IWI_CSR_NODE_BASE + entry * sizeof node, 1839 (uint8_t *)&node, sizeof node); 1840 } 1841 1842 static int 1843 iwi_tx_start(struct iwi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1844 int ac) 1845 { 1846 struct ieee80211vap *vap = ni->ni_vap; 1847 struct ieee80211com *ic = ni->ni_ic; 1848 struct iwi_node *in = (struct iwi_node *)ni; 1849 const struct ieee80211_frame *wh; 1850 struct ieee80211_key *k; 1851 const struct chanAccParams *cap; 1852 struct iwi_tx_ring *txq = &sc->txq[ac]; 1853 struct iwi_tx_data *data; 1854 struct iwi_tx_desc *desc; 1855 struct mbuf *mnew; 1856 bus_dma_segment_t segs[IWI_MAX_NSEG]; 1857 int error, nsegs, hdrlen, i; 1858 int ismcast, flags, xflags, staid; 1859 1860 IWI_LOCK_ASSERT(sc); 1861 wh = mtod(m0, const struct ieee80211_frame *); 1862 /* NB: only data frames use this path */ 1863 hdrlen = ieee80211_hdrsize(wh); 1864 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 1865 flags = xflags = 0; 1866 1867 if (!ismcast) 1868 flags |= IWI_DATA_FLAG_NEED_ACK; 1869 if (vap->iv_flags & IEEE80211_F_SHPREAMBLE) 1870 flags |= IWI_DATA_FLAG_SHPREAMBLE; 1871 if (IEEE80211_QOS_HAS_SEQ(wh)) { 1872 xflags |= IWI_DATA_XFLAG_QOS; 1873 cap = &ic->ic_wme.wme_chanParams; 1874 if (!cap->cap_wmeParams[ac].wmep_noackPolicy) 1875 flags &= ~IWI_DATA_FLAG_NEED_ACK; 1876 } 1877 1878 /* 1879 * This is only used in IBSS mode where the firmware expect an index 1880 * in a h/w table instead of a destination address. 1881 */ 1882 if (vap->iv_opmode == IEEE80211_M_IBSS) { 1883 if (!ismcast) { 1884 if (in->in_station == -1) { 1885 #if defined(__DragonFly__) 1886 in->in_station = devfs_clone_bitmap_get(&sc->sc_unr, 1887 IWI_MAX_IBSSNODE-1); 1888 #else 1889 in->in_station = alloc_unr(sc->sc_unr); 1890 #endif 1891 if (in->in_station == -1) { 1892 /* h/w table is full */ 1893 if_inc_counter(ni->ni_vap->iv_ifp, 1894 IFCOUNTER_OERRORS, 1); 1895 m_freem(m0); 1896 ieee80211_free_node(ni); 1897 return 0; 1898 } 1899 iwi_write_ibssnode(sc, 1900 ni->ni_macaddr, in->in_station); 1901 } 1902 staid = in->in_station; 1903 } else { 1904 /* 1905 * Multicast addresses have no associated node 1906 * so there will be no station entry. We reserve 1907 * entry 0 for one mcast address and use that. 1908 * If there are many being used this will be 1909 * expensive and we'll need to do a better job 1910 * but for now this handles the broadcast case. 1911 */ 1912 if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) { 1913 IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1); 1914 iwi_write_ibssnode(sc, sc->sc_mcast, 0); 1915 } 1916 staid = 0; 1917 } 1918 } else 1919 staid = 0; 1920 1921 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1922 k = ieee80211_crypto_encap(ni, m0); 1923 if (k == NULL) { 1924 m_freem(m0); 1925 return ENOBUFS; 1926 } 1927 1928 /* packet header may have moved, reset our local pointer */ 1929 wh = mtod(m0, struct ieee80211_frame *); 1930 } 1931 1932 if (ieee80211_radiotap_active_vap(vap)) { 1933 struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1934 1935 tap->wt_flags = 0; 1936 1937 ieee80211_radiotap_tx(vap, m0); 1938 } 1939 1940 data = &txq->data[txq->cur]; 1941 desc = &txq->desc[txq->cur]; 1942 1943 /* save and trim IEEE802.11 header */ 1944 m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh); 1945 m_adj(m0, hdrlen); 1946 1947 #if defined(__DragonFly__) 1948 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map, 1949 m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); 1950 #else 1951 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, 1952 &nsegs, 0); 1953 #endif 1954 if (error != 0 && error != EFBIG) { 1955 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1956 error); 1957 m_freem(m0); 1958 return error; 1959 } 1960 if (error != 0) { 1961 mnew = m_defrag(m0, M_NOWAIT); 1962 if (mnew == NULL) { 1963 device_printf(sc->sc_dev, 1964 "could not defragment mbuf\n"); 1965 m_freem(m0); 1966 return ENOBUFS; 1967 } 1968 m0 = mnew; 1969 1970 #if defined(__DragonFly__) 1971 error = bus_dmamap_load_mbuf_segment(txq->data_dmat, 1972 data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); 1973 #else 1974 error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, 1975 m0, segs, &nsegs, 0); 1976 #endif 1977 if (error != 0) { 1978 device_printf(sc->sc_dev, 1979 "could not map mbuf (error %d)\n", error); 1980 m_freem(m0); 1981 return error; 1982 } 1983 } 1984 1985 data->m = m0; 1986 data->ni = ni; 1987 1988 desc->hdr.type = IWI_HDR_TYPE_DATA; 1989 desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1990 desc->station = staid; 1991 desc->cmd = IWI_DATA_CMD_TX; 1992 desc->len = htole16(m0->m_pkthdr.len); 1993 desc->flags = flags; 1994 desc->xflags = xflags; 1995 1996 #if 0 1997 if (vap->iv_flags & IEEE80211_F_PRIVACY) 1998 desc->wep_txkey = vap->iv_def_txkey; 1999 else 2000 #endif 2001 desc->flags |= IWI_DATA_FLAG_NO_WEP; 2002 2003 desc->nseg = htole32(nsegs); 2004 for (i = 0; i < nsegs; i++) { 2005 desc->seg_addr[i] = htole32(segs[i].ds_addr); 2006 desc->seg_len[i] = htole16(segs[i].ds_len); 2007 } 2008 2009 bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 2010 bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 2011 2012 DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 2013 ac, txq->cur, le16toh(desc->len), nsegs)); 2014 2015 txq->queued++; 2016 txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; 2017 CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 2018 2019 return 0; 2020 } 2021 2022 static int 2023 iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2024 const struct ieee80211_bpf_params *params) 2025 { 2026 /* no support; just discard */ 2027 m_freem(m); 2028 ieee80211_free_node(ni); 2029 return 0; 2030 } 2031 2032 static int 2033 iwi_transmit(struct ieee80211com *ic, struct mbuf *m) 2034 { 2035 struct iwi_softc *sc = ic->ic_softc; 2036 int error; 2037 IWI_LOCK_DECL; 2038 2039 IWI_LOCK(sc); 2040 if (!sc->sc_running) { 2041 IWI_UNLOCK(sc); 2042 return (ENXIO); 2043 } 2044 error = mbufq_enqueue(&sc->sc_snd, m); 2045 if (error) { 2046 IWI_UNLOCK(sc); 2047 return (error); 2048 } 2049 iwi_start(sc); 2050 IWI_UNLOCK(sc); 2051 return (0); 2052 } 2053 2054 static void 2055 iwi_start(struct iwi_softc *sc) 2056 { 2057 struct mbuf *m; 2058 struct ieee80211_node *ni; 2059 int ac; 2060 2061 IWI_LOCK_ASSERT(sc); 2062 2063 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 2064 ac = M_WME_GETAC(m); 2065 if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) { 2066 /* there is no place left in this ring; tail drop */ 2067 /* XXX tail drop */ 2068 mbufq_prepend(&sc->sc_snd, m); 2069 break; 2070 } 2071 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 2072 if (iwi_tx_start(sc, m, ni, ac) != 0) { 2073 ieee80211_free_node(ni); 2074 if_inc_counter(ni->ni_vap->iv_ifp, 2075 IFCOUNTER_OERRORS, 1); 2076 break; 2077 } 2078 sc->sc_tx_timer = 5; 2079 } 2080 } 2081 2082 static void 2083 iwi_watchdog(void *arg) 2084 { 2085 struct iwi_softc *sc = arg; 2086 struct ieee80211com *ic = &sc->sc_ic; 2087 2088 IWI_LOCK_ASSERT(sc); 2089 2090 if (sc->sc_tx_timer > 0) { 2091 if (--sc->sc_tx_timer == 0) { 2092 device_printf(sc->sc_dev, "device timeout\n"); 2093 #if defined(__DragonFly__) 2094 ++ic->ic_oerrors; 2095 #else 2096 counter_u64_add(ic->ic_oerrors, 1); 2097 #endif 2098 ieee80211_runtask(ic, &sc->sc_restarttask); 2099 } 2100 } 2101 if (sc->sc_state_timer > 0) { 2102 if (--sc->sc_state_timer == 0) { 2103 device_printf(sc->sc_dev, 2104 "firmware stuck in state %d, resetting\n", 2105 sc->fw_state); 2106 if (sc->fw_state == IWI_FW_SCANNING) 2107 ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps)); 2108 ieee80211_runtask(ic, &sc->sc_restarttask); 2109 sc->sc_state_timer = 3; 2110 } 2111 } 2112 if (sc->sc_busy_timer > 0) { 2113 if (--sc->sc_busy_timer == 0) { 2114 device_printf(sc->sc_dev, 2115 "firmware command timeout, resetting\n"); 2116 ieee80211_runtask(ic, &sc->sc_restarttask); 2117 } 2118 } 2119 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 2120 } 2121 2122 static void 2123 iwi_parent(struct ieee80211com *ic) 2124 { 2125 struct iwi_softc *sc = ic->ic_softc; 2126 int startall = 0; 2127 IWI_LOCK_DECL; 2128 2129 IWI_LOCK(sc); 2130 if (ic->ic_nrunning > 0) { 2131 if (!sc->sc_running) { 2132 iwi_init_locked(sc); 2133 startall = 1; 2134 } 2135 } else if (sc->sc_running) 2136 iwi_stop_locked(sc); 2137 IWI_UNLOCK(sc); 2138 if (startall) 2139 ieee80211_start_all(ic); 2140 } 2141 2142 static void 2143 iwi_stop_master(struct iwi_softc *sc) 2144 { 2145 uint32_t tmp; 2146 int ntries; 2147 2148 /* disable interrupts */ 2149 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 2150 2151 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 2152 for (ntries = 0; ntries < 5; ntries++) { 2153 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2154 break; 2155 DELAY(10); 2156 } 2157 if (ntries == 5) 2158 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2159 2160 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2161 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); 2162 2163 sc->flags &= ~IWI_FLAG_FW_INITED; 2164 } 2165 2166 static int 2167 iwi_reset(struct iwi_softc *sc) 2168 { 2169 uint32_t tmp; 2170 int i, ntries; 2171 2172 iwi_stop_master(sc); 2173 2174 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2175 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2176 2177 CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 2178 2179 /* wait for clock stabilization */ 2180 for (ntries = 0; ntries < 1000; ntries++) { 2181 if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 2182 break; 2183 DELAY(200); 2184 } 2185 if (ntries == 1000) { 2186 device_printf(sc->sc_dev, 2187 "timeout waiting for clock stabilization\n"); 2188 return EIO; 2189 } 2190 2191 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2192 CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); 2193 2194 DELAY(10); 2195 2196 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2197 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 2198 2199 /* clear NIC memory */ 2200 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 2201 for (i = 0; i < 0xc000; i++) 2202 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2203 2204 return 0; 2205 } 2206 2207 static const struct iwi_firmware_ohdr * 2208 iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw) 2209 { 2210 const struct firmware *fp = fw->fp; 2211 const struct iwi_firmware_ohdr *hdr; 2212 2213 if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) { 2214 device_printf(sc->sc_dev, "image '%s' too small\n", fp->name); 2215 return NULL; 2216 } 2217 hdr = (const struct iwi_firmware_ohdr *)fp->data; 2218 if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || 2219 (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { 2220 device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n", 2221 fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)), 2222 IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR, 2223 IWI_FW_REQ_MINOR); 2224 return NULL; 2225 } 2226 fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr); 2227 fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr); 2228 fw->name = fp->name; 2229 return hdr; 2230 } 2231 2232 static const struct iwi_firmware_ohdr * 2233 iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw) 2234 { 2235 const struct iwi_firmware_ohdr *hdr; 2236 2237 hdr = iwi_setup_ofw(sc, fw); 2238 if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) { 2239 device_printf(sc->sc_dev, "%s is not a ucode image\n", 2240 fw->name); 2241 hdr = NULL; 2242 } 2243 return hdr; 2244 } 2245 2246 static void 2247 iwi_getfw(struct iwi_fw *fw, const char *fwname, 2248 struct iwi_fw *uc, const char *ucname) 2249 { 2250 if (fw->fp == NULL) 2251 fw->fp = firmware_get(fwname); 2252 /* NB: pre-3.0 ucode is packaged separately */ 2253 if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300) 2254 uc->fp = firmware_get(ucname); 2255 } 2256 2257 /* 2258 * Get the required firmware images if not already loaded. 2259 * Note that we hold firmware images so long as the device 2260 * is marked up in case we need to reload them on device init. 2261 * This is necessary because we re-init the device sometimes 2262 * from a context where we cannot read from the filesystem 2263 * (e.g. from the taskqueue thread when rfkill is re-enabled). 2264 * XXX return 0 on success, 1 on error. 2265 * 2266 * NB: the order of get'ing and put'ing images here is 2267 * intentional to support handling firmware images bundled 2268 * by operating mode and/or all together in one file with 2269 * the boot firmware as "master". 2270 */ 2271 static int 2272 iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode) 2273 { 2274 const struct iwi_firmware_hdr *hdr; 2275 const struct firmware *fp; 2276 2277 /* invalidate cached firmware on mode change */ 2278 if (sc->fw_mode != opmode) 2279 iwi_put_firmware(sc); 2280 2281 switch (opmode) { 2282 case IEEE80211_M_STA: 2283 iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss"); 2284 break; 2285 case IEEE80211_M_IBSS: 2286 iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss"); 2287 break; 2288 case IEEE80211_M_MONITOR: 2289 iwi_getfw(&sc->fw_fw, "iwi_monitor", 2290 &sc->fw_uc, "iwi_ucode_monitor"); 2291 break; 2292 default: 2293 device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); 2294 return EINVAL; 2295 } 2296 fp = sc->fw_fw.fp; 2297 if (fp == NULL) { 2298 device_printf(sc->sc_dev, "could not load firmware\n"); 2299 goto bad; 2300 } 2301 if (fp->version < 300) { 2302 /* 2303 * Firmware prior to 3.0 was packaged as separate 2304 * boot, firmware, and ucode images. Verify the 2305 * ucode image was read in, retrieve the boot image 2306 * if needed, and check version stamps for consistency. 2307 * The version stamps in the data are also checked 2308 * above; this is a bit paranoid but is a cheap 2309 * safeguard against mis-packaging. 2310 */ 2311 if (sc->fw_uc.fp == NULL) { 2312 device_printf(sc->sc_dev, "could not load ucode\n"); 2313 goto bad; 2314 } 2315 if (sc->fw_boot.fp == NULL) { 2316 sc->fw_boot.fp = firmware_get("iwi_boot"); 2317 if (sc->fw_boot.fp == NULL) { 2318 device_printf(sc->sc_dev, 2319 "could not load boot firmware\n"); 2320 goto bad; 2321 } 2322 } 2323 if (sc->fw_boot.fp->version != sc->fw_fw.fp->version || 2324 sc->fw_boot.fp->version != sc->fw_uc.fp->version) { 2325 device_printf(sc->sc_dev, 2326 "firmware version mismatch: " 2327 "'%s' is %d, '%s' is %d, '%s' is %d\n", 2328 sc->fw_boot.fp->name, sc->fw_boot.fp->version, 2329 sc->fw_uc.fp->name, sc->fw_uc.fp->version, 2330 sc->fw_fw.fp->name, sc->fw_fw.fp->version 2331 ); 2332 goto bad; 2333 } 2334 /* 2335 * Check and setup each image. 2336 */ 2337 if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL || 2338 iwi_setup_ofw(sc, &sc->fw_boot) == NULL || 2339 iwi_setup_ofw(sc, &sc->fw_fw) == NULL) 2340 goto bad; 2341 } else { 2342 /* 2343 * Check and setup combined image. 2344 */ 2345 if (fp->datasize < sizeof(struct iwi_firmware_hdr)) { 2346 device_printf(sc->sc_dev, "image '%s' too small\n", 2347 fp->name); 2348 goto bad; 2349 } 2350 hdr = (const struct iwi_firmware_hdr *)fp->data; 2351 if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize) 2352 + le32toh(hdr->fsize)) { 2353 device_printf(sc->sc_dev, "image '%s' too small (2)\n", 2354 fp->name); 2355 goto bad; 2356 } 2357 sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr); 2358 sc->fw_boot.size = le32toh(hdr->bsize); 2359 sc->fw_boot.name = fp->name; 2360 sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size; 2361 sc->fw_uc.size = le32toh(hdr->usize); 2362 sc->fw_uc.name = fp->name; 2363 sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size; 2364 sc->fw_fw.size = le32toh(hdr->fsize); 2365 sc->fw_fw.name = fp->name; 2366 } 2367 #if 0 2368 device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n", 2369 sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size); 2370 #endif 2371 2372 sc->fw_mode = opmode; 2373 return 0; 2374 bad: 2375 iwi_put_firmware(sc); 2376 return 1; 2377 } 2378 2379 static void 2380 iwi_put_fw(struct iwi_fw *fw) 2381 { 2382 if (fw->fp != NULL) { 2383 firmware_put(fw->fp, FIRMWARE_UNLOAD); 2384 fw->fp = NULL; 2385 } 2386 fw->data = NULL; 2387 fw->size = 0; 2388 fw->name = NULL; 2389 } 2390 2391 /* 2392 * Release any cached firmware images. 2393 */ 2394 static void 2395 iwi_put_firmware(struct iwi_softc *sc) 2396 { 2397 iwi_put_fw(&sc->fw_uc); 2398 iwi_put_fw(&sc->fw_fw); 2399 iwi_put_fw(&sc->fw_boot); 2400 } 2401 2402 static int 2403 iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw) 2404 { 2405 uint32_t tmp; 2406 const uint16_t *w; 2407 const char *uc = fw->data; 2408 size_t size = fw->size; 2409 int i, ntries, error; 2410 2411 IWI_LOCK_ASSERT(sc); 2412 error = 0; 2413 CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 2414 IWI_RST_STOP_MASTER); 2415 for (ntries = 0; ntries < 5; ntries++) { 2416 if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 2417 break; 2418 DELAY(10); 2419 } 2420 if (ntries == 5) { 2421 device_printf(sc->sc_dev, "timeout waiting for master\n"); 2422 error = EIO; 2423 goto fail; 2424 } 2425 2426 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 2427 DELAY(5000); 2428 2429 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2430 tmp &= ~IWI_RST_PRINCETON_RESET; 2431 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2432 2433 DELAY(5000); 2434 MEM_WRITE_4(sc, 0x3000e0, 0); 2435 DELAY(1000); 2436 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1); 2437 DELAY(1000); 2438 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0); 2439 DELAY(1000); 2440 MEM_WRITE_1(sc, 0x200000, 0x00); 2441 MEM_WRITE_1(sc, 0x200000, 0x40); 2442 DELAY(1000); 2443 2444 /* write microcode into adapter memory */ 2445 for (w = (const uint16_t *)uc; size > 0; w++, size -= 2) 2446 MEM_WRITE_2(sc, 0x200010, htole16(*w)); 2447 2448 MEM_WRITE_1(sc, 0x200000, 0x00); 2449 MEM_WRITE_1(sc, 0x200000, 0x80); 2450 2451 /* wait until we get an answer */ 2452 for (ntries = 0; ntries < 100; ntries++) { 2453 if (MEM_READ_1(sc, 0x200000) & 1) 2454 break; 2455 DELAY(100); 2456 } 2457 if (ntries == 100) { 2458 device_printf(sc->sc_dev, 2459 "timeout waiting for ucode to initialize\n"); 2460 error = EIO; 2461 goto fail; 2462 } 2463 2464 /* read the answer or the firmware will not initialize properly */ 2465 for (i = 0; i < 7; i++) 2466 MEM_READ_4(sc, 0x200004); 2467 2468 MEM_WRITE_1(sc, 0x200000, 0x00); 2469 2470 fail: 2471 return error; 2472 } 2473 2474 /* macro to handle unaligned little endian data in firmware image */ 2475 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2476 2477 static int 2478 iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw) 2479 { 2480 u_char *p, *end; 2481 uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; 2482 int ntries, error; 2483 2484 IWI_LOCK_ASSERT(sc); 2485 2486 /* copy firmware image to DMA memory */ 2487 memcpy(sc->fw_virtaddr, fw->data, fw->size); 2488 2489 /* make sure the adapter will get up-to-date values */ 2490 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE); 2491 2492 /* tell the adapter where the command blocks are stored */ 2493 MEM_WRITE_4(sc, 0x3000a0, 0x27000); 2494 2495 /* 2496 * Store command blocks into adapter's internal memory using register 2497 * indirections. The adapter will read the firmware image through DMA 2498 * using information stored in command blocks. 2499 */ 2500 src = sc->fw_physaddr; 2501 p = sc->fw_virtaddr; 2502 end = p + fw->size; 2503 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 2504 2505 while (p < end) { 2506 dst = GETLE32(p); p += 4; src += 4; 2507 len = GETLE32(p); p += 4; src += 4; 2508 p += len; 2509 2510 while (len > 0) { 2511 mlen = min(len, IWI_CB_MAXDATALEN); 2512 2513 ctl = IWI_CB_DEFAULT_CTL | mlen; 2514 sum = ctl ^ src ^ dst; 2515 2516 /* write a command block */ 2517 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 2518 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); 2519 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); 2520 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 2521 2522 src += mlen; 2523 dst += mlen; 2524 len -= mlen; 2525 } 2526 } 2527 2528 /* write a fictive final command block (sentinel) */ 2529 sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 2530 CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 2531 2532 tmp = CSR_READ_4(sc, IWI_CSR_RST); 2533 tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); 2534 CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 2535 2536 /* tell the adapter to start processing command blocks */ 2537 MEM_WRITE_4(sc, 0x3000a4, 0x540100); 2538 2539 /* wait until the adapter reaches the sentinel */ 2540 for (ntries = 0; ntries < 400; ntries++) { 2541 if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 2542 break; 2543 DELAY(100); 2544 } 2545 /* sync dma, just in case */ 2546 bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE); 2547 if (ntries == 400) { 2548 device_printf(sc->sc_dev, 2549 "timeout processing command blocks for %s firmware\n", 2550 fw->name); 2551 return EIO; 2552 } 2553 2554 /* we're done with command blocks processing */ 2555 MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 2556 2557 /* allow interrupts so we know when the firmware is ready */ 2558 CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 2559 2560 /* tell the adapter to initialize the firmware */ 2561 CSR_WRITE_4(sc, IWI_CSR_RST, 0); 2562 2563 tmp = CSR_READ_4(sc, IWI_CSR_CTL); 2564 CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); 2565 2566 /* wait at most one second for firmware initialization to complete */ 2567 #if defined(__DragonFly__) 2568 if ((error = lksleep(sc, &sc->sc_lock, 0, "iwiinit", hz)) != 0) { 2569 #else 2570 if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) { 2571 #endif 2572 device_printf(sc->sc_dev, "timeout waiting for %s firmware " 2573 "initialization to complete\n", fw->name); 2574 } 2575 2576 return error; 2577 } 2578 2579 static int 2580 iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap) 2581 { 2582 uint32_t data; 2583 2584 if (vap->iv_flags & IEEE80211_F_PMGTON) { 2585 /* XXX set more fine-grained operation */ 2586 data = htole32(IWI_POWER_MODE_MAX); 2587 } else 2588 data = htole32(IWI_POWER_MODE_CAM); 2589 2590 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2591 return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data); 2592 } 2593 2594 static int 2595 iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap) 2596 { 2597 struct iwi_wep_key wepkey; 2598 struct ieee80211_key *wk; 2599 int error, i; 2600 2601 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2602 wk = &vap->iv_nw_keys[i]; 2603 2604 wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2605 wepkey.idx = i; 2606 wepkey.len = wk->wk_keylen; 2607 memset(wepkey.key, 0, sizeof wepkey.key); 2608 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2609 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2610 wepkey.len)); 2611 error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2612 sizeof wepkey); 2613 if (error != 0) 2614 return error; 2615 } 2616 return 0; 2617 } 2618 2619 static int 2620 iwi_config(struct iwi_softc *sc) 2621 { 2622 struct ieee80211com *ic = &sc->sc_ic; 2623 struct iwi_configuration config; 2624 struct iwi_rateset rs; 2625 struct iwi_txpower power; 2626 uint32_t data; 2627 int error, i; 2628 2629 IWI_LOCK_ASSERT(sc); 2630 2631 #if defined(__DragonFly__) 2632 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_macaddr))); 2633 #else 2634 DPRINTF(("Setting MAC address to %6D\n", ic->ic_macaddr, ":")); 2635 #endif 2636 error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_macaddr, 2637 IEEE80211_ADDR_LEN); 2638 if (error != 0) 2639 return error; 2640 2641 memset(&config, 0, sizeof config); 2642 config.bluetooth_coexistence = sc->bluetooth; 2643 config.silence_threshold = 0x1e; 2644 config.antenna = sc->antenna; 2645 config.multicast_enabled = 1; 2646 config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2647 config.disable_unicast_decryption = 1; 2648 config.disable_multicast_decryption = 1; 2649 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2650 config.allow_invalid_frames = 1; 2651 config.allow_beacon_and_probe_resp = 1; 2652 config.allow_mgt = 1; 2653 } 2654 DPRINTF(("Configuring adapter\n")); 2655 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2656 if (error != 0) 2657 return error; 2658 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2659 power.mode = IWI_MODE_11B; 2660 power.nchan = 11; 2661 for (i = 0; i < 11; i++) { 2662 power.chan[i].chan = i + 1; 2663 power.chan[i].power = IWI_TXPOWER_MAX; 2664 } 2665 DPRINTF(("Setting .11b channels tx power\n")); 2666 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2667 if (error != 0) 2668 return error; 2669 2670 power.mode = IWI_MODE_11G; 2671 DPRINTF(("Setting .11g channels tx power\n")); 2672 error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); 2673 if (error != 0) 2674 return error; 2675 } 2676 2677 memset(&rs, 0, sizeof rs); 2678 rs.mode = IWI_MODE_11G; 2679 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2680 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2681 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2682 rs.nrates); 2683 DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2684 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2685 if (error != 0) 2686 return error; 2687 2688 memset(&rs, 0, sizeof rs); 2689 rs.mode = IWI_MODE_11A; 2690 rs.type = IWI_RATESET_TYPE_SUPPORTED; 2691 rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2692 memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2693 rs.nrates); 2694 DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2695 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2696 if (error != 0) 2697 return error; 2698 2699 data = htole32(karc4random()); 2700 DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2701 error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data); 2702 if (error != 0) 2703 return error; 2704 2705 /* enable adapter */ 2706 DPRINTF(("Enabling adapter\n")); 2707 return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0); 2708 } 2709 2710 static __inline void 2711 set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type) 2712 { 2713 uint8_t *st = &scan->scan_type[ix / 2]; 2714 if (ix % 2) 2715 *st = (*st & 0xf0) | ((scan_type & 0xf) << 0); 2716 else 2717 *st = (*st & 0x0f) | ((scan_type & 0xf) << 4); 2718 } 2719 2720 static int 2721 scan_type(const struct ieee80211_scan_state *ss, 2722 const struct ieee80211_channel *chan) 2723 { 2724 /* We can only set one essid for a directed scan */ 2725 if (ss->ss_nssid != 0) 2726 return IWI_SCAN_TYPE_BDIRECTED; 2727 if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) && 2728 (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) 2729 return IWI_SCAN_TYPE_BROADCAST; 2730 return IWI_SCAN_TYPE_PASSIVE; 2731 } 2732 2733 static __inline int 2734 scan_band(const struct ieee80211_channel *c) 2735 { 2736 return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ; 2737 } 2738 2739 static void 2740 iwi_monitor_scan(void *arg, int npending) 2741 { 2742 struct iwi_softc *sc = arg; 2743 IWI_LOCK_DECL; 2744 2745 IWI_LOCK(sc); 2746 (void) iwi_scanchan(sc, 2000, 0); 2747 IWI_UNLOCK(sc); 2748 } 2749 2750 /* 2751 * Start a scan on the current channel or all channels. 2752 */ 2753 static int 2754 iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan) 2755 { 2756 struct ieee80211com *ic = &sc->sc_ic; 2757 struct ieee80211_channel *chan; 2758 struct ieee80211_scan_state *ss; 2759 struct iwi_scan_ext scan; 2760 int error = 0; 2761 2762 IWI_LOCK_ASSERT(sc); 2763 if (sc->fw_state == IWI_FW_SCANNING) { 2764 /* 2765 * This should not happen as we only trigger scan_next after 2766 * completion 2767 */ 2768 DPRINTF(("%s: called too early - still scanning\n", __func__)); 2769 return (EBUSY); 2770 } 2771 IWI_STATE_BEGIN(sc, IWI_FW_SCANNING); 2772 2773 ss = ic->ic_scan; 2774 2775 memset(&scan, 0, sizeof scan); 2776 scan.full_scan_index = htole32(++sc->sc_scangen); 2777 scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell); 2778 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 2779 /* 2780 * Use very short dwell times for when we send probe request 2781 * frames. Without this bg scans hang. Ideally this should 2782 * be handled with early-termination as done by net80211 but 2783 * that's not feasible (aborting a scan is problematic). 2784 */ 2785 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30); 2786 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30); 2787 } else { 2788 scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell); 2789 scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell); 2790 } 2791 2792 /* We can only set one essid for a directed scan */ 2793 if (ss->ss_nssid != 0) { 2794 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid, 2795 ss->ss_ssid[0].len); 2796 if (error) 2797 return (error); 2798 } 2799 2800 if (allchan) { 2801 int i, next, band, b, bstart; 2802 /* 2803 * Convert scan list to run-length encoded channel list 2804 * the firmware requires (preserving the order setup by 2805 * net80211). The first entry in each run specifies the 2806 * band and the count of items in the run. 2807 */ 2808 next = 0; /* next open slot */ 2809 bstart = 0; /* NB: not needed, silence compiler */ 2810 band = -1; /* NB: impossible value */ 2811 KASSERT(ss->ss_last > 0, ("no channels")); 2812 for (i = 0; i < ss->ss_last; i++) { 2813 chan = ss->ss_chans[i]; 2814 b = scan_band(chan); 2815 if (b != band) { 2816 if (band != -1) 2817 scan.channels[bstart] = 2818 (next - bstart) | band; 2819 /* NB: this allocates a slot for the run-len */ 2820 band = b, bstart = next++; 2821 } 2822 if (next >= IWI_SCAN_CHANNELS) { 2823 DPRINTF(("truncating scan list\n")); 2824 break; 2825 } 2826 scan.channels[next] = ieee80211_chan2ieee(ic, chan); 2827 set_scan_type(&scan, next, scan_type(ss, chan)); 2828 next++; 2829 } 2830 scan.channels[bstart] = (next - bstart) | band; 2831 } else { 2832 /* Scan the current channel only */ 2833 chan = ic->ic_curchan; 2834 scan.channels[0] = 1 | scan_band(chan); 2835 scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2836 set_scan_type(&scan, 1, scan_type(ss, chan)); 2837 } 2838 #ifdef IWI_DEBUG 2839 if (iwi_debug > 0) { 2840 static const char *scantype[8] = 2841 { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" }; 2842 int i; 2843 kprintf("Scan request: index %u dwell %d/%d/%d\n" 2844 , le32toh(scan.full_scan_index) 2845 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE]) 2846 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST]) 2847 , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED]) 2848 ); 2849 i = 0; 2850 do { 2851 int run = scan.channels[i]; 2852 if (run == 0) 2853 break; 2854 kprintf("Scan %d %s channels:", run & 0x3f, 2855 run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz"); 2856 for (run &= 0x3f, i++; run > 0; run--, i++) { 2857 uint8_t type = scan.scan_type[i/2]; 2858 kprintf(" %u/%s", scan.channels[i], 2859 scantype[(i & 1 ? type : type>>4) & 7]); 2860 } 2861 kprintf("\n"); 2862 } while (i < IWI_SCAN_CHANNELS); 2863 } 2864 #endif 2865 2866 return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan)); 2867 } 2868 2869 static int 2870 iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm) 2871 { 2872 struct iwi_sensitivity sens; 2873 2874 DPRINTF(("Setting sensitivity to %d\n", rssi_dbm)); 2875 2876 memset(&sens, 0, sizeof sens); 2877 sens.rssi = htole16(rssi_dbm); 2878 return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens); 2879 } 2880 2881 static int 2882 iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap) 2883 { 2884 struct ieee80211com *ic = vap->iv_ic; 2885 struct ifnet *ifp = vap->iv_ifp; 2886 struct ieee80211_node *ni; 2887 struct iwi_configuration config; 2888 struct iwi_associate *assoc = &sc->assoc; 2889 struct iwi_rateset rs; 2890 uint16_t capinfo; 2891 uint32_t data; 2892 int error, mode; 2893 2894 IWI_LOCK_ASSERT(sc); 2895 2896 ni = ieee80211_ref_node(vap->iv_bss); 2897 2898 if (sc->flags & IWI_FLAG_ASSOCIATED) { 2899 DPRINTF(("Already associated\n")); 2900 return (-1); 2901 } 2902 2903 IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING); 2904 error = 0; 2905 mode = 0; 2906 2907 if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) 2908 mode = IWI_MODE_11A; 2909 else if (IEEE80211_IS_CHAN_G(ic->ic_curchan)) 2910 mode = IWI_MODE_11G; 2911 if (IEEE80211_IS_CHAN_B(ic->ic_curchan)) 2912 mode = IWI_MODE_11B; 2913 2914 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2915 memset(&config, 0, sizeof config); 2916 config.bluetooth_coexistence = sc->bluetooth; 2917 config.antenna = sc->antenna; 2918 config.multicast_enabled = 1; 2919 if (mode == IWI_MODE_11G) 2920 config.use_protection = 1; 2921 config.answer_pbreq = 2922 (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2923 config.disable_unicast_decryption = 1; 2924 config.disable_multicast_decryption = 1; 2925 DPRINTF(("Configuring adapter\n")); 2926 error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); 2927 if (error != 0) 2928 goto done; 2929 } 2930 2931 #ifdef IWI_DEBUG 2932 if (iwi_debug > 0) { 2933 kprintf("Setting ESSID to "); 2934 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2935 kprintf("\n"); 2936 } 2937 #endif 2938 error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); 2939 if (error != 0) 2940 goto done; 2941 2942 error = iwi_setpowermode(sc, vap); 2943 if (error != 0) 2944 goto done; 2945 2946 data = htole32(vap->iv_rtsthreshold); 2947 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2948 error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2949 if (error != 0) 2950 goto done; 2951 2952 data = htole32(vap->iv_fragthreshold); 2953 DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2954 error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2955 if (error != 0) 2956 goto done; 2957 2958 /* the rate set has already been "negotiated" */ 2959 memset(&rs, 0, sizeof rs); 2960 rs.mode = mode; 2961 rs.type = IWI_RATESET_TYPE_NEGOTIATED; 2962 rs.nrates = ni->ni_rates.rs_nrates; 2963 if (rs.nrates > IWI_RATESET_SIZE) { 2964 DPRINTF(("Truncating negotiated rate set from %u\n", 2965 rs.nrates)); 2966 rs.nrates = IWI_RATESET_SIZE; 2967 } 2968 memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2969 DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); 2970 error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); 2971 if (error != 0) 2972 goto done; 2973 2974 memset(assoc, 0, sizeof *assoc); 2975 2976 if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) { 2977 /* NB: don't treat WME setup as failure */ 2978 if (iwi_wme_setparams(sc) == 0 && iwi_wme_setie(sc) == 0) 2979 assoc->policy |= htole16(IWI_POLICY_WME); 2980 /* XXX complain on failure? */ 2981 } 2982 2983 if (vap->iv_appie_wpa != NULL) { 2984 struct ieee80211_appie *ie = vap->iv_appie_wpa; 2985 2986 DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len)); 2987 error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len); 2988 if (error != 0) 2989 goto done; 2990 } 2991 2992 error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni)); 2993 if (error != 0) 2994 goto done; 2995 2996 assoc->mode = mode; 2997 assoc->chan = ic->ic_curchan->ic_ieee; 2998 /* 2999 * NB: do not arrange for shared key auth w/o privacy 3000 * (i.e. a wep key); it causes a firmware error. 3001 */ 3002 if ((vap->iv_flags & IEEE80211_F_PRIVACY) && 3003 ni->ni_authmode == IEEE80211_AUTH_SHARED) { 3004 assoc->auth = IWI_AUTH_SHARED; 3005 /* 3006 * It's possible to have privacy marked but no default 3007 * key setup. This typically is due to a user app bug 3008 * but if we blindly grab the key the firmware will 3009 * barf so avoid it for now. 3010 */ 3011 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) 3012 assoc->auth |= vap->iv_def_txkey << 4; 3013 3014 error = iwi_setwepkeys(sc, vap); 3015 if (error != 0) 3016 goto done; 3017 } 3018 if (vap->iv_flags & IEEE80211_F_WPA) 3019 assoc->policy |= htole16(IWI_POLICY_WPA); 3020 if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) 3021 assoc->type = IWI_HC_IBSS_START; 3022 else 3023 assoc->type = IWI_HC_ASSOC; 3024 memcpy(assoc->tstamp, ni->ni_tstamp.data, 8); 3025 3026 if (vap->iv_opmode == IEEE80211_M_IBSS) 3027 capinfo = IEEE80211_CAPINFO_IBSS; 3028 else 3029 capinfo = IEEE80211_CAPINFO_ESS; 3030 if (vap->iv_flags & IEEE80211_F_PRIVACY) 3031 capinfo |= IEEE80211_CAPINFO_PRIVACY; 3032 if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 3033 IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) 3034 capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 3035 if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) 3036 capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 3037 assoc->capinfo = htole16(capinfo); 3038 3039 assoc->lintval = htole16(ic->ic_lintval); 3040 assoc->intval = htole16(ni->ni_intval); 3041 IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid); 3042 if (vap->iv_opmode == IEEE80211_M_IBSS) 3043 IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr); 3044 else 3045 IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid); 3046 3047 #if defined(__DragonFly__) 3048 DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " 3049 "auth %u capinfo 0x%x lintval %u bintval %u\n", 3050 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", 3051 ether_sprintf(assoc->bssid), ether_sprintf(assoc->dst), 3052 assoc->chan, le16toh(assoc->policy), assoc->auth, 3053 le16toh(assoc->capinfo), le16toh(assoc->lintval), 3054 le16toh(assoc->intval))); 3055 #else 3056 DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x " 3057 "auth %u capinfo 0x%x lintval %u bintval %u\n", 3058 assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", 3059 assoc->bssid, ":", assoc->dst, ":", 3060 assoc->chan, le16toh(assoc->policy), assoc->auth, 3061 le16toh(assoc->capinfo), le16toh(assoc->lintval), 3062 le16toh(assoc->intval))); 3063 #endif 3064 error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 3065 done: 3066 ieee80211_free_node(ni); 3067 if (error) 3068 IWI_STATE_END(sc, IWI_FW_ASSOCIATING); 3069 3070 return (error); 3071 } 3072 3073 static void 3074 iwi_disassoc(void *arg, int pending) 3075 { 3076 struct iwi_softc *sc = arg; 3077 IWI_LOCK_DECL; 3078 3079 IWI_LOCK(sc); 3080 iwi_disassociate(sc, 0); 3081 IWI_UNLOCK(sc); 3082 } 3083 3084 static int 3085 iwi_disassociate(struct iwi_softc *sc, int quiet) 3086 { 3087 struct iwi_associate *assoc = &sc->assoc; 3088 3089 if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) { 3090 DPRINTF(("Not associated\n")); 3091 return (-1); 3092 } 3093 3094 IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING); 3095 3096 if (quiet) 3097 assoc->type = IWI_HC_DISASSOC_QUIET; 3098 else 3099 assoc->type = IWI_HC_DISASSOC; 3100 3101 #if defined(__DragonFly__) 3102 DPRINTF(("Trying to disassociate from %s channel %u\n", 3103 ether_sprintf(assoc->bssid), assoc->chan)); 3104 #else 3105 DPRINTF(("Trying to disassociate from %6D channel %u\n", 3106 assoc->bssid, ":", assoc->chan)); 3107 #endif 3108 return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); 3109 } 3110 3111 /* 3112 * release dma resources for the firmware 3113 */ 3114 static void 3115 iwi_release_fw_dma(struct iwi_softc *sc) 3116 { 3117 if (sc->fw_flags & IWI_FW_HAVE_PHY) 3118 bus_dmamap_unload(sc->fw_dmat, sc->fw_map); 3119 if (sc->fw_flags & IWI_FW_HAVE_MAP) 3120 bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map); 3121 if (sc->fw_flags & IWI_FW_HAVE_DMAT) 3122 bus_dma_tag_destroy(sc->fw_dmat); 3123 3124 sc->fw_flags = 0; 3125 sc->fw_dma_size = 0; 3126 sc->fw_dmat = NULL; 3127 sc->fw_map = NULL; 3128 sc->fw_physaddr = 0; 3129 sc->fw_virtaddr = NULL; 3130 } 3131 3132 /* 3133 * allocate the dma descriptor for the firmware. 3134 * Return 0 on success, 1 on error. 3135 * Must be called unlocked, protected by IWI_FLAG_FW_LOADING. 3136 */ 3137 static int 3138 iwi_init_fw_dma(struct iwi_softc *sc, int size) 3139 { 3140 if (sc->fw_dma_size >= size) 3141 return 0; 3142 #if defined(__DragonFly__) 3143 if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 3144 BUS_SPACE_MAXADDR, size, 1, size, 3145 0, &sc->fw_dmat) != 0) { 3146 #else 3147 if (bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 3148 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 3149 size, 1, size, 0, NULL, NULL, &sc->fw_dmat) != 0) { 3150 #endif 3151 device_printf(sc->sc_dev, 3152 "could not create firmware DMA tag\n"); 3153 goto error; 3154 } 3155 sc->fw_flags |= IWI_FW_HAVE_DMAT; 3156 if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0, 3157 &sc->fw_map) != 0) { 3158 device_printf(sc->sc_dev, 3159 "could not allocate firmware DMA memory\n"); 3160 goto error; 3161 } 3162 sc->fw_flags |= IWI_FW_HAVE_MAP; 3163 if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr, 3164 size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) { 3165 device_printf(sc->sc_dev, "could not load firmware DMA map\n"); 3166 goto error; 3167 } 3168 sc->fw_flags |= IWI_FW_HAVE_PHY; 3169 sc->fw_dma_size = size; 3170 return 0; 3171 3172 error: 3173 iwi_release_fw_dma(sc); 3174 return 1; 3175 } 3176 3177 static void 3178 iwi_init_locked(struct iwi_softc *sc) 3179 { 3180 struct iwi_rx_data *data; 3181 int i; 3182 3183 IWI_LOCK_ASSERT(sc); 3184 3185 if (sc->fw_state == IWI_FW_LOADING) { 3186 device_printf(sc->sc_dev, "%s: already loading\n", __func__); 3187 return; /* XXX: condvar? */ 3188 } 3189 3190 iwi_stop_locked(sc); 3191 3192 IWI_STATE_BEGIN(sc, IWI_FW_LOADING); 3193 3194 if (iwi_reset(sc) != 0) { 3195 device_printf(sc->sc_dev, "could not reset adapter\n"); 3196 goto fail; 3197 } 3198 if (iwi_load_firmware(sc, &sc->fw_boot) != 0) { 3199 device_printf(sc->sc_dev, 3200 "could not load boot firmware %s\n", sc->fw_boot.name); 3201 goto fail; 3202 } 3203 if (iwi_load_ucode(sc, &sc->fw_uc) != 0) { 3204 device_printf(sc->sc_dev, 3205 "could not load microcode %s\n", sc->fw_uc.name); 3206 goto fail; 3207 } 3208 3209 iwi_stop_master(sc); 3210 3211 CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr); 3212 CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 3213 CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 3214 3215 CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr); 3216 CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 3217 CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 3218 3219 CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr); 3220 CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 3221 CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 3222 3223 CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr); 3224 CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 3225 CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 3226 3227 CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr); 3228 CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 3229 CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 3230 3231 for (i = 0; i < sc->rxq.count; i++) { 3232 data = &sc->rxq.data[i]; 3233 CSR_WRITE_4(sc, data->reg, data->physaddr); 3234 } 3235 3236 CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1); 3237 3238 if (iwi_load_firmware(sc, &sc->fw_fw) != 0) { 3239 device_printf(sc->sc_dev, 3240 "could not load main firmware %s\n", sc->fw_fw.name); 3241 goto fail; 3242 } 3243 sc->flags |= IWI_FLAG_FW_INITED; 3244 3245 IWI_STATE_END(sc, IWI_FW_LOADING); 3246 3247 if (iwi_config(sc) != 0) { 3248 device_printf(sc->sc_dev, "unable to enable adapter\n"); 3249 goto fail2; 3250 } 3251 3252 callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); 3253 sc->sc_running = 1; 3254 return; 3255 fail: 3256 IWI_STATE_END(sc, IWI_FW_LOADING); 3257 fail2: 3258 iwi_stop_locked(sc); 3259 } 3260 3261 static void 3262 iwi_init(void *priv) 3263 { 3264 struct iwi_softc *sc = priv; 3265 struct ieee80211com *ic = &sc->sc_ic; 3266 IWI_LOCK_DECL; 3267 3268 IWI_LOCK(sc); 3269 iwi_init_locked(sc); 3270 IWI_UNLOCK(sc); 3271 3272 if (sc->sc_running) 3273 ieee80211_start_all(ic); 3274 } 3275 3276 static void 3277 iwi_stop_locked(void *priv) 3278 { 3279 struct iwi_softc *sc = priv; 3280 3281 IWI_LOCK_ASSERT(sc); 3282 3283 sc->sc_running = 0; 3284 3285 if (sc->sc_softled) { 3286 callout_stop(&sc->sc_ledtimer); 3287 sc->sc_blinking = 0; 3288 } 3289 callout_stop(&sc->sc_wdtimer); 3290 callout_stop(&sc->sc_rftimer); 3291 3292 iwi_stop_master(sc); 3293 3294 CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET); 3295 3296 /* reset rings */ 3297 iwi_reset_cmd_ring(sc, &sc->cmdq); 3298 iwi_reset_tx_ring(sc, &sc->txq[0]); 3299 iwi_reset_tx_ring(sc, &sc->txq[1]); 3300 iwi_reset_tx_ring(sc, &sc->txq[2]); 3301 iwi_reset_tx_ring(sc, &sc->txq[3]); 3302 iwi_reset_rx_ring(sc, &sc->rxq); 3303 3304 sc->sc_tx_timer = 0; 3305 sc->sc_state_timer = 0; 3306 sc->sc_busy_timer = 0; 3307 sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED); 3308 sc->fw_state = IWI_FW_IDLE; 3309 wakeup(sc); 3310 } 3311 3312 static void 3313 iwi_stop(struct iwi_softc *sc) 3314 { 3315 IWI_LOCK_DECL; 3316 3317 IWI_LOCK(sc); 3318 iwi_stop_locked(sc); 3319 IWI_UNLOCK(sc); 3320 } 3321 3322 static void 3323 iwi_restart(void *arg, int npending) 3324 { 3325 struct iwi_softc *sc = arg; 3326 3327 iwi_init(sc); 3328 } 3329 3330 /* 3331 * Return whether or not the radio is enabled in hardware 3332 * (i.e. the rfkill switch is "off"). 3333 */ 3334 static int 3335 iwi_getrfkill(struct iwi_softc *sc) 3336 { 3337 return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; 3338 } 3339 3340 static void 3341 iwi_radio_on(void *arg, int pending) 3342 { 3343 struct iwi_softc *sc = arg; 3344 struct ieee80211com *ic = &sc->sc_ic; 3345 3346 device_printf(sc->sc_dev, "radio turned on\n"); 3347 3348 iwi_init(sc); 3349 ieee80211_notify_radio(ic, 1); 3350 } 3351 3352 static void 3353 iwi_rfkill_poll(void *arg) 3354 { 3355 struct iwi_softc *sc = arg; 3356 3357 IWI_LOCK_ASSERT(sc); 3358 3359 /* 3360 * Check for a change in rfkill state. We get an 3361 * interrupt when a radio is disabled but not when 3362 * it is enabled so we must poll for the latter. 3363 */ 3364 if (!iwi_getrfkill(sc)) { 3365 ieee80211_runtask(&sc->sc_ic, &sc->sc_radiontask); 3366 return; 3367 } 3368 callout_reset(&sc->sc_rftimer, 2*hz, iwi_rfkill_poll, sc); 3369 } 3370 3371 static void 3372 iwi_radio_off(void *arg, int pending) 3373 { 3374 struct iwi_softc *sc = arg; 3375 struct ieee80211com *ic = &sc->sc_ic; 3376 IWI_LOCK_DECL; 3377 3378 device_printf(sc->sc_dev, "radio turned off\n"); 3379 3380 ieee80211_notify_radio(ic, 0); 3381 3382 IWI_LOCK(sc); 3383 iwi_stop_locked(sc); 3384 iwi_rfkill_poll(sc); 3385 IWI_UNLOCK(sc); 3386 } 3387 3388 static int 3389 iwi_sysctl_stats(SYSCTL_HANDLER_ARGS) 3390 { 3391 struct iwi_softc *sc = arg1; 3392 uint32_t size, buf[128]; 3393 3394 memset(buf, 0, sizeof buf); 3395 3396 if (!(sc->flags & IWI_FLAG_FW_INITED)) 3397 return SYSCTL_OUT(req, buf, sizeof buf); 3398 3399 size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 3400 CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 3401 3402 return SYSCTL_OUT(req, buf, size); 3403 } 3404 3405 static int 3406 iwi_sysctl_radio(SYSCTL_HANDLER_ARGS) 3407 { 3408 struct iwi_softc *sc = arg1; 3409 int val = !iwi_getrfkill(sc); 3410 3411 return SYSCTL_OUT(req, &val, sizeof val); 3412 } 3413 3414 /* 3415 * Add sysctl knobs. 3416 */ 3417 static void 3418 iwi_sysctlattach(struct iwi_softc *sc) 3419 { 3420 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 3421 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 3422 3423 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio", 3424 CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I", 3425 "radio transmitter switch state (0=off, 1=on)"); 3426 3427 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats", 3428 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S", 3429 "statistics"); 3430 3431 sc->bluetooth = 0; 3432 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth", 3433 CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence"); 3434 3435 sc->antenna = IWI_ANTENNA_AUTO; 3436 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna", 3437 CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)"); 3438 } 3439 3440 /* 3441 * LED support. 3442 * 3443 * Different cards have different capabilities. Some have three 3444 * led's while others have only one. The linux ipw driver defines 3445 * led's for link state (associated or not), band (11a, 11g, 11b), 3446 * and for link activity. We use one led and vary the blink rate 3447 * according to the tx/rx traffic a la the ath driver. 3448 */ 3449 3450 static __inline uint32_t 3451 iwi_toggle_event(uint32_t r) 3452 { 3453 return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA | 3454 IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA); 3455 } 3456 3457 static uint32_t 3458 iwi_read_event(struct iwi_softc *sc) 3459 { 3460 return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT); 3461 } 3462 3463 static void 3464 iwi_write_event(struct iwi_softc *sc, uint32_t v) 3465 { 3466 MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v); 3467 } 3468 3469 static void 3470 iwi_led_done(void *arg) 3471 { 3472 struct iwi_softc *sc = arg; 3473 3474 sc->sc_blinking = 0; 3475 } 3476 3477 /* 3478 * Turn the activity LED off: flip the pin and then set a timer so no 3479 * update will happen for the specified duration. 3480 */ 3481 static void 3482 iwi_led_off(void *arg) 3483 { 3484 struct iwi_softc *sc = arg; 3485 uint32_t v; 3486 3487 v = iwi_read_event(sc); 3488 v &= ~sc->sc_ledpin; 3489 iwi_write_event(sc, iwi_toggle_event(v)); 3490 callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, iwi_led_done, sc); 3491 } 3492 3493 /* 3494 * Blink the LED according to the specified on/off times. 3495 */ 3496 static void 3497 iwi_led_blink(struct iwi_softc *sc, int on, int off) 3498 { 3499 uint32_t v; 3500 3501 v = iwi_read_event(sc); 3502 v |= sc->sc_ledpin; 3503 iwi_write_event(sc, iwi_toggle_event(v)); 3504 sc->sc_blinking = 1; 3505 sc->sc_ledoff = off; 3506 callout_reset(&sc->sc_ledtimer, on, iwi_led_off, sc); 3507 } 3508 3509 static void 3510 iwi_led_event(struct iwi_softc *sc, int event) 3511 { 3512 /* NB: on/off times from the Atheros NDIS driver, w/ permission */ 3513 static const struct { 3514 u_int rate; /* tx/rx iwi rate */ 3515 u_int16_t timeOn; /* LED on time (ms) */ 3516 u_int16_t timeOff; /* LED off time (ms) */ 3517 } blinkrates[] = { 3518 { IWI_RATE_OFDM54, 40, 10 }, 3519 { IWI_RATE_OFDM48, 44, 11 }, 3520 { IWI_RATE_OFDM36, 50, 13 }, 3521 { IWI_RATE_OFDM24, 57, 14 }, 3522 { IWI_RATE_OFDM18, 67, 16 }, 3523 { IWI_RATE_OFDM12, 80, 20 }, 3524 { IWI_RATE_DS11, 100, 25 }, 3525 { IWI_RATE_OFDM9, 133, 34 }, 3526 { IWI_RATE_OFDM6, 160, 40 }, 3527 { IWI_RATE_DS5, 200, 50 }, 3528 { 6, 240, 58 }, /* XXX 3Mb/s if it existed */ 3529 { IWI_RATE_DS2, 267, 66 }, 3530 { IWI_RATE_DS1, 400, 100 }, 3531 { 0, 500, 130 }, /* unknown rate/polling */ 3532 }; 3533 uint32_t txrate; 3534 int j = 0; /* XXX silence compiler */ 3535 3536 sc->sc_ledevent = ticks; /* time of last event */ 3537 if (sc->sc_blinking) /* don't interrupt active blink */ 3538 return; 3539 switch (event) { 3540 case IWI_LED_POLL: 3541 j = nitems(blinkrates)-1; 3542 break; 3543 case IWI_LED_TX: 3544 /* read current transmission rate from adapter */ 3545 txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE); 3546 if (blinkrates[sc->sc_txrix].rate != txrate) { 3547 for (j = 0; j < nitems(blinkrates)-1; j++) 3548 if (blinkrates[j].rate == txrate) 3549 break; 3550 sc->sc_txrix = j; 3551 } else 3552 j = sc->sc_txrix; 3553 break; 3554 case IWI_LED_RX: 3555 if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) { 3556 for (j = 0; j < nitems(blinkrates)-1; j++) 3557 if (blinkrates[j].rate == sc->sc_rxrate) 3558 break; 3559 sc->sc_rxrix = j; 3560 } else 3561 j = sc->sc_rxrix; 3562 break; 3563 } 3564 /* XXX beware of overflow */ 3565 iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000, 3566 (blinkrates[j].timeOff * hz) / 1000); 3567 } 3568 3569 static int 3570 iwi_sysctl_softled(SYSCTL_HANDLER_ARGS) 3571 { 3572 struct iwi_softc *sc = arg1; 3573 int softled = sc->sc_softled; 3574 int error; 3575 3576 error = sysctl_handle_int(oidp, &softled, 0, req); 3577 if (error || !req->newptr) 3578 return error; 3579 softled = (softled != 0); 3580 if (softled != sc->sc_softled) { 3581 if (softled) { 3582 uint32_t v = iwi_read_event(sc); 3583 v &= ~sc->sc_ledpin; 3584 iwi_write_event(sc, iwi_toggle_event(v)); 3585 } 3586 sc->sc_softled = softled; 3587 } 3588 return 0; 3589 } 3590 3591 static void 3592 iwi_ledattach(struct iwi_softc *sc) 3593 { 3594 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 3595 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 3596 3597 sc->sc_blinking = 0; 3598 sc->sc_ledstate = 1; 3599 sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */ 3600 #if defined(__DragonFly__) 3601 callout_init_lk(&sc->sc_ledtimer, &sc->sc_lock); 3602 #else 3603 callout_init_mtx(&sc->sc_ledtimer, &sc->sc_mtx, 0); 3604 #endif 3605 3606 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3607 "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 3608 iwi_sysctl_softled, "I", "enable/disable software LED support"); 3609 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3610 "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0, 3611 "pin setting to turn activity LED on"); 3612 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3613 "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0, 3614 "idle time for inactivity LED (ticks)"); 3615 /* XXX for debugging */ 3616 SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 3617 "nictype", CTLFLAG_RD, &sc->sc_nictype, 0, 3618 "NIC type from EEPROM"); 3619 3620 sc->sc_ledpin = IWI_RST_LED_ACTIVITY; 3621 sc->sc_softled = 1; 3622 3623 sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff; 3624 if (sc->sc_nictype == 1) { 3625 /* 3626 * NB: led's are reversed. 3627 */ 3628 sc->sc_ledpin = IWI_RST_LED_ASSOCIATED; 3629 } 3630 } 3631 3632 static void 3633 iwi_scan_start(struct ieee80211com *ic) 3634 { 3635 /* ignore */ 3636 } 3637 3638 static void 3639 iwi_set_channel(struct ieee80211com *ic) 3640 { 3641 struct iwi_softc *sc = ic->ic_softc; 3642 3643 if (sc->fw_state == IWI_FW_IDLE) 3644 iwi_setcurchan(sc, ic->ic_curchan->ic_ieee); 3645 } 3646 3647 static void 3648 iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 3649 { 3650 struct ieee80211vap *vap = ss->ss_vap; 3651 struct iwi_softc *sc = vap->iv_ic->ic_softc; 3652 IWI_LOCK_DECL; 3653 3654 IWI_LOCK(sc); 3655 if (iwi_scanchan(sc, maxdwell, 0)) 3656 ieee80211_cancel_scan(vap); 3657 IWI_UNLOCK(sc); 3658 } 3659 3660 static void 3661 iwi_scan_mindwell(struct ieee80211_scan_state *ss) 3662 { 3663 /* NB: don't try to abort scan; wait for firmware to finish */ 3664 } 3665 3666 static void 3667 iwi_scan_end(struct ieee80211com *ic) 3668 { 3669 struct iwi_softc *sc = ic->ic_softc; 3670 IWI_LOCK_DECL; 3671 3672 IWI_LOCK(sc); 3673 sc->flags &= ~IWI_FLAG_CHANNEL_SCAN; 3674 /* NB: make sure we're still scanning */ 3675 if (sc->fw_state == IWI_FW_SCANNING) 3676 iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0); 3677 IWI_UNLOCK(sc); 3678 } 3679