1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (c) 2004-2006 5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6 * Copyright (c) 2006 Sam Leffler, Errno Consulting 7 * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice unmodified, this list of conditions, and the following 14 * disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 /*- 36 * Intel(R) PRO/Wireless 2100 MiniPCI driver 37 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 38 */ 39 40 #include <sys/param.h> 41 #include <sys/sysctl.h> 42 #include <sys/sockio.h> 43 #include <sys/mbuf.h> 44 #include <sys/kernel.h> 45 #include <sys/socket.h> 46 #include <sys/systm.h> 47 #include <sys/malloc.h> 48 #include <sys/queue.h> 49 #include <sys/taskqueue.h> 50 #include <sys/module.h> 51 #include <sys/bus.h> 52 #include <sys/endian.h> 53 #include <sys/linker.h> 54 #include <sys/firmware.h> 55 56 #include <machine/bus.h> 57 #include <machine/resource.h> 58 #include <sys/rman.h> 59 60 #include <dev/pci/pcireg.h> 61 #include <dev/pci/pcivar.h> 62 63 #include <net/bpf.h> 64 #include <net/if.h> 65 #include <net/if_arp.h> 66 #include <net/ethernet.h> 67 #include <net/if_dl.h> 68 #include <net/if_media.h> 69 #include <net/if_types.h> 70 71 #include <net80211/ieee80211_var.h> 72 #include <net80211/ieee80211_radiotap.h> 73 74 #include <netinet/in.h> 75 #include <netinet/in_systm.h> 76 #include <netinet/in_var.h> 77 #include <netinet/ip.h> 78 #include <netinet/if_ether.h> 79 80 #include <dev/ipw/if_ipwreg.h> 81 #include <dev/ipw/if_ipwvar.h> 82 83 #define IPW_DEBUG 84 #ifdef IPW_DEBUG 85 #define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0) 86 #define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0) 87 int ipw_debug = 0; 88 SYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level"); 89 #else 90 #define DPRINTF(x) 91 #define DPRINTFN(n, x) 92 #endif 93 94 MODULE_DEPEND(ipw, pci, 1, 1, 1); 95 MODULE_DEPEND(ipw, wlan, 1, 1, 1); 96 MODULE_DEPEND(ipw, firmware, 1, 1, 1); 97 98 struct ipw_ident { 99 uint16_t vendor; 100 uint16_t device; 101 const char *name; 102 }; 103 104 static const struct ipw_ident ipw_ident_table[] = { 105 { 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" }, 106 107 { 0, 0, NULL } 108 }; 109 110 static struct ieee80211vap *ipw_vap_create(struct ieee80211com *, 111 const char name[IFNAMSIZ], int unit, int opmode, int flags, 112 const uint8_t bssid[IEEE80211_ADDR_LEN], 113 const uint8_t mac[IEEE80211_ADDR_LEN]); 114 static void ipw_vap_delete(struct ieee80211vap *); 115 static int ipw_dma_alloc(struct ipw_softc *); 116 static void ipw_release(struct ipw_softc *); 117 static void ipw_media_status(struct ifnet *, struct ifmediareq *); 118 static int ipw_newstate(struct ieee80211vap *, enum ieee80211_state, int); 119 static uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t); 120 static void ipw_rx_cmd_intr(struct ipw_softc *, struct ipw_soft_buf *); 121 static void ipw_assocsuccess(void *, int); 122 static void ipw_assocfailed(void *, int); 123 static void ipw_scandone(void *, int); 124 static void ipw_bmiss(void *, int); 125 static void ipw_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *); 126 static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *, 127 struct ipw_soft_bd *, struct ipw_soft_buf *); 128 static void ipw_rx_intr(struct ipw_softc *); 129 static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *); 130 static void ipw_tx_intr(struct ipw_softc *); 131 static void ipw_intr(void *); 132 static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int); 133 static const char * ipw_cmdname(int); 134 static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t); 135 static int ipw_tx_start(struct ifnet *, struct mbuf *, 136 struct ieee80211_node *); 137 static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *, 138 const struct ieee80211_bpf_params *); 139 static void ipw_start(struct ifnet *); 140 static void ipw_start_locked(struct ifnet *); 141 static void ipw_watchdog(void *); 142 static int ipw_ioctl(struct ifnet *, u_long, caddr_t); 143 static void ipw_stop_master(struct ipw_softc *); 144 static int ipw_enable(struct ipw_softc *); 145 static int ipw_disable(struct ipw_softc *); 146 static int ipw_reset(struct ipw_softc *); 147 static int ipw_load_ucode(struct ipw_softc *, const char *, int); 148 static int ipw_load_firmware(struct ipw_softc *, const char *, int); 149 static int ipw_config(struct ipw_softc *); 150 static void ipw_assoc_task(void *, int); 151 static void ipw_disassoc_task(void *, int); 152 static void ipw_init_task(void *, int); 153 static void ipw_init(void *); 154 static void ipw_init_locked(struct ipw_softc *); 155 static void ipw_stop(void *); 156 static void ipw_stop_locked(struct ipw_softc *); 157 static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS); 158 static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS); 159 static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t); 160 static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t); 161 #if 0 162 static int ipw_read_table2(struct ipw_softc *, uint32_t, void *, 163 uint32_t *); 164 static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *, 165 bus_size_t); 166 #endif 167 static void ipw_write_mem_1(struct ipw_softc *, bus_size_t, 168 const uint8_t *, bus_size_t); 169 static void ipw_scan_task(void *, int); 170 static int ipw_scan(struct ipw_softc *); 171 static void ipw_scan_start(struct ieee80211com *); 172 static void ipw_scan_end(struct ieee80211com *); 173 static void ipw_set_channel(struct ieee80211com *); 174 static void ipw_scan_curchan(struct ieee80211_scan_state *, 175 unsigned long maxdwell); 176 static void ipw_scan_mindwell(struct ieee80211_scan_state *); 177 178 static int ipw_probe(device_t); 179 static int ipw_attach(device_t); 180 static int ipw_detach(device_t); 181 static int ipw_shutdown(device_t); 182 static int ipw_suspend(device_t); 183 static int ipw_resume(device_t); 184 185 static device_method_t ipw_methods[] = { 186 /* Device interface */ 187 DEVMETHOD(device_probe, ipw_probe), 188 DEVMETHOD(device_attach, ipw_attach), 189 DEVMETHOD(device_detach, ipw_detach), 190 DEVMETHOD(device_shutdown, ipw_shutdown), 191 DEVMETHOD(device_suspend, ipw_suspend), 192 DEVMETHOD(device_resume, ipw_resume), 193 194 { 0, 0 } 195 }; 196 197 static driver_t ipw_driver = { 198 "ipw", 199 ipw_methods, 200 sizeof (struct ipw_softc) 201 }; 202 203 static devclass_t ipw_devclass; 204 205 DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, 0, 0); 206 DRIVER_MODULE(ipw, cardbus, ipw_driver, ipw_devclass, 0, 0); 207 208 static int 209 ipw_probe(device_t dev) 210 { 211 const struct ipw_ident *ident; 212 213 for (ident = ipw_ident_table; ident->name != NULL; ident++) { 214 if (pci_get_vendor(dev) == ident->vendor && 215 pci_get_device(dev) == ident->device) { 216 device_set_desc(dev, ident->name); 217 return 0; 218 } 219 } 220 return ENXIO; 221 } 222 223 /* Base Address Register */ 224 #define IPW_PCI_BAR0 0x10 225 226 static int 227 ipw_attach(device_t dev) 228 { 229 struct ipw_softc *sc = device_get_softc(dev); 230 struct ifnet *ifp; 231 struct ieee80211com *ic; 232 struct ieee80211_channel *c; 233 uint16_t val; 234 int error, i; 235 236 sc->sc_dev = dev; 237 238 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 239 MTX_DEF | MTX_RECURSE); 240 241 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc); 242 TASK_INIT(&sc->sc_scan_task, 0, ipw_scan_task, sc); 243 TASK_INIT(&sc->sc_bmiss_task, 0, ipw_bmiss, sc); 244 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0); 245 246 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 247 device_printf(dev, "chip is in D%d power mode " 248 "-- setting to D0\n", pci_get_powerstate(dev)); 249 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 250 } 251 252 pci_write_config(dev, 0x41, 0, 1); 253 254 /* enable bus-mastering */ 255 pci_enable_busmaster(dev); 256 257 sc->mem_rid = IPW_PCI_BAR0; 258 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 259 RF_ACTIVE); 260 if (sc->mem == NULL) { 261 device_printf(dev, "could not allocate memory resource\n"); 262 goto fail; 263 } 264 265 sc->sc_st = rman_get_bustag(sc->mem); 266 sc->sc_sh = rman_get_bushandle(sc->mem); 267 268 sc->irq_rid = 0; 269 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 270 RF_ACTIVE | RF_SHAREABLE); 271 if (sc->irq == NULL) { 272 device_printf(dev, "could not allocate interrupt resource\n"); 273 goto fail1; 274 } 275 276 if (ipw_reset(sc) != 0) { 277 device_printf(dev, "could not reset adapter\n"); 278 goto fail2; 279 } 280 281 if (ipw_dma_alloc(sc) != 0) { 282 device_printf(dev, "could not allocate DMA resources\n"); 283 goto fail2; 284 } 285 286 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 287 if (ifp == NULL) { 288 device_printf(dev, "can not if_alloc()\n"); 289 goto fail3; 290 } 291 ic = ifp->if_l2com; 292 293 ifp->if_softc = sc; 294 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 295 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 296 ifp->if_init = ipw_init; 297 ifp->if_ioctl = ipw_ioctl; 298 ifp->if_start = ipw_start; 299 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 300 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 301 IFQ_SET_READY(&ifp->if_snd); 302 303 ic->ic_ifp = ifp; 304 ic->ic_opmode = IEEE80211_M_STA; 305 ic->ic_phytype = IEEE80211_T_DS; 306 307 /* set device capabilities */ 308 ic->ic_caps = IEEE80211_C_IBSS /* IBSS mode supported */ 309 | IEEE80211_C_MONITOR /* monitor mode supported */ 310 | IEEE80211_C_PMGT /* power save supported */ 311 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 312 | IEEE80211_C_WPA /* 802.11i supported */ 313 ; 314 315 /* read MAC address from EEPROM */ 316 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0); 317 ic->ic_myaddr[0] = val >> 8; 318 ic->ic_myaddr[1] = val & 0xff; 319 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1); 320 ic->ic_myaddr[2] = val >> 8; 321 ic->ic_myaddr[3] = val & 0xff; 322 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2); 323 ic->ic_myaddr[4] = val >> 8; 324 ic->ic_myaddr[5] = val & 0xff; 325 326 /* set supported .11b channels (read from EEPROM) */ 327 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0) 328 val = 0x7ff; /* default to channels 1-11 */ 329 val <<= 1; 330 for (i = 1; i < 16; i++) { 331 if (val & (1 << i)) { 332 c = &ic->ic_channels[ic->ic_nchans++]; 333 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 334 c->ic_flags = IEEE80211_CHAN_B; 335 c->ic_ieee = i; 336 } 337 } 338 339 /* check support for radio transmitter switch in EEPROM */ 340 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8)) 341 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH; 342 343 ieee80211_ifattach(ic); 344 ic->ic_scan_start = ipw_scan_start; 345 ic->ic_scan_end = ipw_scan_end; 346 ic->ic_set_channel = ipw_set_channel; 347 ic->ic_scan_curchan = ipw_scan_curchan; 348 ic->ic_scan_mindwell = ipw_scan_mindwell; 349 ic->ic_raw_xmit = ipw_raw_xmit; 350 351 ic->ic_vap_create = ipw_vap_create; 352 ic->ic_vap_delete = ipw_vap_delete; 353 354 bpfattach(ifp, DLT_IEEE802_11_RADIO, 355 sizeof (struct ieee80211_frame) + sizeof (sc->sc_txtap)); 356 357 sc->sc_rxtap_len = sizeof sc->sc_rxtap; 358 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 359 sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT); 360 361 sc->sc_txtap_len = sizeof sc->sc_txtap; 362 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 363 sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT); 364 365 /* 366 * Add a few sysctl knobs. 367 */ 368 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 369 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio", 370 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I", 371 "radio transmitter switch state (0=off, 1=on)"); 372 373 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 374 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats", 375 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S", 376 "statistics"); 377 378 /* 379 * Hook our interrupt after all initialization is complete. 380 */ 381 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 382 NULL, ipw_intr, sc, &sc->sc_ih); 383 if (error != 0) { 384 device_printf(dev, "could not set up interrupt\n"); 385 goto fail4; 386 } 387 388 if (bootverbose) 389 ieee80211_announce(ic); 390 391 return 0; 392 fail4: 393 if_free(ifp); 394 fail3: 395 ipw_release(sc); 396 fail2: 397 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 398 fail1: 399 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 400 fail: 401 mtx_destroy(&sc->sc_mtx); 402 return ENXIO; 403 } 404 405 static int 406 ipw_detach(device_t dev) 407 { 408 struct ipw_softc *sc = device_get_softc(dev); 409 struct ifnet *ifp = sc->sc_ifp; 410 struct ieee80211com *ic = ifp->if_l2com; 411 412 ipw_stop(sc); 413 414 bpfdetach(ifp); 415 ieee80211_ifdetach(ic); 416 417 callout_drain(&sc->sc_wdtimer); 418 taskqueue_drain(taskqueue_fast, &sc->sc_init_task); 419 taskqueue_drain(taskqueue_fast, &sc->sc_scan_task); 420 taskqueue_drain(taskqueue_fast, &sc->sc_bmiss_task); 421 422 ipw_release(sc); 423 424 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 425 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 426 427 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 428 429 if_free(ifp); 430 431 if (sc->sc_firmware != NULL) { 432 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 433 sc->sc_firmware = NULL; 434 } 435 436 mtx_destroy(&sc->sc_mtx); 437 438 return 0; 439 } 440 441 static struct ieee80211vap * 442 ipw_vap_create(struct ieee80211com *ic, 443 const char name[IFNAMSIZ], int unit, int opmode, int flags, 444 const uint8_t bssid[IEEE80211_ADDR_LEN], 445 const uint8_t mac[IEEE80211_ADDR_LEN]) 446 { 447 struct ifnet *ifp = ic->ic_ifp; 448 struct ipw_softc *sc = ifp->if_softc; 449 struct ipw_vap *ivp; 450 struct ieee80211vap *vap; 451 const struct firmware *fp; 452 const struct ipw_firmware_hdr *hdr; 453 const char *imagename; 454 455 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 456 return NULL; 457 458 switch (opmode) { 459 case IEEE80211_M_STA: 460 imagename = "ipw_bss"; 461 break; 462 case IEEE80211_M_IBSS: 463 imagename = "ipw_ibss"; 464 break; 465 case IEEE80211_M_MONITOR: 466 imagename = "ipw_monitor"; 467 break; 468 default: 469 return NULL; 470 } 471 472 /* 473 * Load firmware image using the firmware(9) subsystem. Doing 474 * this unlocked is ok since we're single-threaded by the 475 * 802.11 layer. 476 */ 477 if (sc->sc_firmware == NULL || 478 strcmp(sc->sc_firmware->name, imagename) != 0) { 479 if (sc->sc_firmware != NULL) 480 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 481 sc->sc_firmware = firmware_get(imagename); 482 } 483 if (sc->sc_firmware == NULL) { 484 device_printf(sc->sc_dev, 485 "could not load firmware image '%s'\n", imagename); 486 return NULL; 487 } 488 fp = sc->sc_firmware; 489 if (fp->datasize < sizeof *hdr) { 490 device_printf(sc->sc_dev, 491 "firmware image too short %zu\n", fp->datasize); 492 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 493 sc->sc_firmware = NULL; 494 return NULL; 495 } 496 hdr = (const struct ipw_firmware_hdr *)fp->data; 497 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) + 498 le32toh(hdr->ucodesz)) { 499 device_printf(sc->sc_dev, 500 "firmware image too short %zu\n", fp->datasize); 501 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 502 sc->sc_firmware = NULL; 503 return NULL; 504 } 505 506 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap), 507 M_80211_VAP, M_NOWAIT | M_ZERO); 508 if (ivp == NULL) 509 return NULL; 510 vap = &ivp->vap; 511 512 TASK_INIT(&ivp->assoc_task, 0, ipw_assoc_task, vap); 513 TASK_INIT(&ivp->disassoc_task, 0, ipw_disassoc_task, vap); 514 TASK_INIT(&ivp->assoc_success_task, 0, ipw_assocsuccess, vap); 515 TASK_INIT(&ivp->assoc_failed_task, 0, ipw_assocfailed, vap); 516 TASK_INIT(&ivp->scandone_task, 0, ipw_scandone, vap); 517 518 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 519 /* override with driver methods */ 520 ivp->newstate = vap->iv_newstate; 521 vap->iv_newstate = ipw_newstate; 522 523 /* complete setup */ 524 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status); 525 ic->ic_opmode = opmode; 526 return vap; 527 } 528 529 static void 530 ipw_vap_delete(struct ieee80211vap *vap) 531 { 532 struct ipw_vap *ivp = IPW_VAP(vap); 533 534 ieee80211_vap_detach(vap); 535 free(ivp, M_80211_VAP); 536 } 537 538 static int 539 ipw_dma_alloc(struct ipw_softc *sc) 540 { 541 struct ipw_soft_bd *sbd; 542 struct ipw_soft_hdr *shdr; 543 struct ipw_soft_buf *sbuf; 544 bus_addr_t physaddr; 545 int error, i; 546 547 /* 548 * Allocate and map tx ring. 549 */ 550 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 551 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL, 552 NULL, &sc->tbd_dmat); 553 if (error != 0) { 554 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n"); 555 goto fail; 556 } 557 558 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list, 559 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map); 560 if (error != 0) { 561 device_printf(sc->sc_dev, 562 "could not allocate tx ring DMA memory\n"); 563 goto fail; 564 } 565 566 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list, 567 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0); 568 if (error != 0) { 569 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n"); 570 goto fail; 571 } 572 573 /* 574 * Allocate and map rx ring. 575 */ 576 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 577 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL, 578 NULL, &sc->rbd_dmat); 579 if (error != 0) { 580 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n"); 581 goto fail; 582 } 583 584 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list, 585 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map); 586 if (error != 0) { 587 device_printf(sc->sc_dev, 588 "could not allocate rx ring DMA memory\n"); 589 goto fail; 590 } 591 592 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list, 593 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0); 594 if (error != 0) { 595 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n"); 596 goto fail; 597 } 598 599 /* 600 * Allocate and map status ring. 601 */ 602 error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 603 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0, 604 NULL, NULL, &sc->status_dmat); 605 if (error != 0) { 606 device_printf(sc->sc_dev, 607 "could not create status ring DMA tag\n"); 608 goto fail; 609 } 610 611 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list, 612 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map); 613 if (error != 0) { 614 device_printf(sc->sc_dev, 615 "could not allocate status ring DMA memory\n"); 616 goto fail; 617 } 618 619 error = bus_dmamap_load(sc->status_dmat, sc->status_map, 620 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys, 621 0); 622 if (error != 0) { 623 device_printf(sc->sc_dev, 624 "could not map status ring DMA memory\n"); 625 goto fail; 626 } 627 628 /* 629 * Allocate command DMA map. 630 */ 631 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 632 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1, 633 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat); 634 if (error != 0) { 635 device_printf(sc->sc_dev, "could not create command DMA tag\n"); 636 goto fail; 637 } 638 639 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map); 640 if (error != 0) { 641 device_printf(sc->sc_dev, 642 "could not create command DMA map\n"); 643 goto fail; 644 } 645 646 /* 647 * Allocate headers DMA maps. 648 */ 649 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 650 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1, 651 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat); 652 if (error != 0) { 653 device_printf(sc->sc_dev, "could not create header DMA tag\n"); 654 goto fail; 655 } 656 657 SLIST_INIT(&sc->free_shdr); 658 for (i = 0; i < IPW_NDATA; i++) { 659 shdr = &sc->shdr_list[i]; 660 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map); 661 if (error != 0) { 662 device_printf(sc->sc_dev, 663 "could not create header DMA map\n"); 664 goto fail; 665 } 666 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 667 } 668 669 /* 670 * Allocate tx buffers DMA maps. 671 */ 672 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 673 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0, 674 NULL, NULL, &sc->txbuf_dmat); 675 if (error != 0) { 676 device_printf(sc->sc_dev, "could not create tx DMA tag\n"); 677 goto fail; 678 } 679 680 SLIST_INIT(&sc->free_sbuf); 681 for (i = 0; i < IPW_NDATA; i++) { 682 sbuf = &sc->tx_sbuf_list[i]; 683 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map); 684 if (error != 0) { 685 device_printf(sc->sc_dev, 686 "could not create tx DMA map\n"); 687 goto fail; 688 } 689 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 690 } 691 692 /* 693 * Initialize tx ring. 694 */ 695 for (i = 0; i < IPW_NTBD; i++) { 696 sbd = &sc->stbd_list[i]; 697 sbd->bd = &sc->tbd_list[i]; 698 sbd->type = IPW_SBD_TYPE_NOASSOC; 699 } 700 701 /* 702 * Pre-allocate rx buffers and DMA maps. 703 */ 704 error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 705 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL, 706 NULL, &sc->rxbuf_dmat); 707 if (error != 0) { 708 device_printf(sc->sc_dev, "could not create rx DMA tag\n"); 709 goto fail; 710 } 711 712 for (i = 0; i < IPW_NRBD; i++) { 713 sbd = &sc->srbd_list[i]; 714 sbuf = &sc->rx_sbuf_list[i]; 715 sbd->bd = &sc->rbd_list[i]; 716 717 sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 718 if (sbuf->m == NULL) { 719 device_printf(sc->sc_dev, 720 "could not allocate rx mbuf\n"); 721 error = ENOMEM; 722 goto fail; 723 } 724 725 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map); 726 if (error != 0) { 727 device_printf(sc->sc_dev, 728 "could not create rx DMA map\n"); 729 goto fail; 730 } 731 732 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, 733 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr, 734 &physaddr, 0); 735 if (error != 0) { 736 device_printf(sc->sc_dev, 737 "could not map rx DMA memory\n"); 738 goto fail; 739 } 740 741 sbd->type = IPW_SBD_TYPE_DATA; 742 sbd->priv = sbuf; 743 sbd->bd->physaddr = htole32(physaddr); 744 sbd->bd->len = htole32(MCLBYTES); 745 } 746 747 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 748 749 return 0; 750 751 fail: ipw_release(sc); 752 return error; 753 } 754 755 static void 756 ipw_release(struct ipw_softc *sc) 757 { 758 struct ipw_soft_buf *sbuf; 759 int i; 760 761 if (sc->tbd_dmat != NULL) { 762 if (sc->stbd_list != NULL) { 763 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map); 764 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, 765 sc->tbd_map); 766 } 767 bus_dma_tag_destroy(sc->tbd_dmat); 768 } 769 770 if (sc->rbd_dmat != NULL) { 771 if (sc->rbd_list != NULL) { 772 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map); 773 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list, 774 sc->rbd_map); 775 } 776 bus_dma_tag_destroy(sc->rbd_dmat); 777 } 778 779 if (sc->status_dmat != NULL) { 780 if (sc->status_list != NULL) { 781 bus_dmamap_unload(sc->status_dmat, sc->status_map); 782 bus_dmamem_free(sc->status_dmat, sc->status_list, 783 sc->status_map); 784 } 785 bus_dma_tag_destroy(sc->status_dmat); 786 } 787 788 for (i = 0; i < IPW_NTBD; i++) 789 ipw_release_sbd(sc, &sc->stbd_list[i]); 790 791 if (sc->cmd_dmat != NULL) { 792 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map); 793 bus_dma_tag_destroy(sc->cmd_dmat); 794 } 795 796 if (sc->hdr_dmat != NULL) { 797 for (i = 0; i < IPW_NDATA; i++) 798 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map); 799 bus_dma_tag_destroy(sc->hdr_dmat); 800 } 801 802 if (sc->txbuf_dmat != NULL) { 803 for (i = 0; i < IPW_NDATA; i++) { 804 bus_dmamap_destroy(sc->txbuf_dmat, 805 sc->tx_sbuf_list[i].map); 806 } 807 bus_dma_tag_destroy(sc->txbuf_dmat); 808 } 809 810 if (sc->rxbuf_dmat != NULL) { 811 for (i = 0; i < IPW_NRBD; i++) { 812 sbuf = &sc->rx_sbuf_list[i]; 813 if (sbuf->m != NULL) { 814 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, 815 BUS_DMASYNC_POSTREAD); 816 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 817 m_freem(sbuf->m); 818 } 819 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map); 820 } 821 bus_dma_tag_destroy(sc->rxbuf_dmat); 822 } 823 } 824 825 static int 826 ipw_shutdown(device_t dev) 827 { 828 struct ipw_softc *sc = device_get_softc(dev); 829 830 ipw_stop(sc); 831 832 return 0; 833 } 834 835 static int 836 ipw_suspend(device_t dev) 837 { 838 struct ipw_softc *sc = device_get_softc(dev); 839 840 ipw_stop(sc); 841 842 return 0; 843 } 844 845 static int 846 ipw_resume(device_t dev) 847 { 848 struct ipw_softc *sc = device_get_softc(dev); 849 struct ifnet *ifp = sc->sc_ifp; 850 851 pci_write_config(dev, 0x41, 0, 1); 852 853 if (ifp->if_flags & IFF_UP) 854 ipw_init(sc); 855 856 return 0; 857 } 858 859 static int 860 ipw_cvtrate(int ipwrate) 861 { 862 switch (ipwrate) { 863 case IPW_RATE_DS1: return 2; 864 case IPW_RATE_DS2: return 4; 865 case IPW_RATE_DS5: return 11; 866 case IPW_RATE_DS11: return 22; 867 } 868 return 0; 869 } 870 871 /* 872 * The firmware automatically adapts the transmit speed. We report its current 873 * value here. 874 */ 875 static void 876 ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr) 877 { 878 struct ieee80211vap *vap = ifp->if_softc; 879 struct ieee80211com *ic = vap->iv_ic; 880 struct ipw_softc *sc = ic->ic_ifp->if_softc; 881 882 /* read current transmission rate from adapter */ 883 vap->iv_bss->ni_txrate = ipw_cvtrate( 884 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf); 885 ieee80211_media_status(ifp, imr); 886 } 887 888 static int 889 ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 890 { 891 struct ipw_vap *ivp = IPW_VAP(vap); 892 struct ieee80211com *ic = vap->iv_ic; 893 struct ifnet *ifp = ic->ic_ifp; 894 struct ipw_softc *sc = ifp->if_softc; 895 896 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 897 ieee80211_state_name[vap->iv_state], 898 ieee80211_state_name[nstate], sc->flags)); 899 900 switch (nstate) { 901 case IEEE80211_S_RUN: 902 if (ic->ic_opmode == IEEE80211_M_IBSS) { 903 /* 904 * XXX when joining an ibss network we are called 905 * with a SCAN -> RUN transition on scan complete. 906 * Use that to call ipw_auth_and_assoc. On completing 907 * the join we are then called again with an 908 * AUTH -> RUN transition and we want to do nothing. 909 * This is all totally bogus and needs to be redone. 910 */ 911 if (vap->iv_state == IEEE80211_S_SCAN) { 912 taskqueue_enqueue(taskqueue_swi, 913 &IPW_VAP(vap)->assoc_task); 914 return EINPROGRESS; 915 } 916 } 917 break; 918 919 case IEEE80211_S_INIT: 920 if (sc->flags & IPW_FLAG_ASSOCIATED) 921 taskqueue_enqueue(taskqueue_swi, 922 &IPW_VAP(vap)->disassoc_task); 923 break; 924 925 case IEEE80211_S_AUTH: 926 taskqueue_enqueue(taskqueue_swi, &IPW_VAP(vap)->assoc_task); 927 return EINPROGRESS; 928 929 case IEEE80211_S_ASSOC: 930 /* 931 * If we are not transitioning from AUTH the resend the 932 * association request. 933 */ 934 if (vap->iv_state != IEEE80211_S_AUTH) { 935 taskqueue_enqueue(taskqueue_swi, 936 &IPW_VAP(vap)->assoc_task); 937 return EINPROGRESS; 938 } 939 break; 940 941 default: 942 break; 943 } 944 return ivp->newstate(vap, nstate, arg); 945 } 946 947 /* 948 * Read 16 bits at address 'addr' from the serial EEPROM. 949 */ 950 static uint16_t 951 ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr) 952 { 953 uint32_t tmp; 954 uint16_t val; 955 int n; 956 957 /* clock C once before the first command */ 958 IPW_EEPROM_CTL(sc, 0); 959 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 960 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 961 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 962 963 /* write start bit (1) */ 964 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 965 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 966 967 /* write READ opcode (10) */ 968 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 969 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 970 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 971 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 972 973 /* write address A7-A0 */ 974 for (n = 7; n >= 0; n--) { 975 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 976 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D)); 977 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 978 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C); 979 } 980 981 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 982 983 /* read data Q15-Q0 */ 984 val = 0; 985 for (n = 15; n >= 0; n--) { 986 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 987 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 988 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL); 989 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n; 990 } 991 992 IPW_EEPROM_CTL(sc, 0); 993 994 /* clear Chip Select and clock C */ 995 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 996 IPW_EEPROM_CTL(sc, 0); 997 IPW_EEPROM_CTL(sc, IPW_EEPROM_C); 998 999 return le16toh(val); 1000 } 1001 1002 static void 1003 ipw_rx_cmd_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 1004 { 1005 struct ipw_cmd *cmd; 1006 1007 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1008 1009 cmd = mtod(sbuf->m, struct ipw_cmd *); 1010 1011 DPRINTFN(9, ("cmd ack'ed %s(%u, %u, %u, %u, %u)\n", 1012 ipw_cmdname(le32toh(cmd->type)), le32toh(cmd->type), 1013 le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len), 1014 le32toh(cmd->status))); 1015 1016 sc->flags &= ~IPW_FLAG_BUSY; 1017 wakeup(sc); 1018 } 1019 1020 static void 1021 ipw_assocsuccess(void *arg, int npending) 1022 { 1023 struct ieee80211vap *vap = arg; 1024 1025 ieee80211_new_state(vap, IEEE80211_S_RUN, -1); 1026 } 1027 1028 static void 1029 ipw_assocfailed(void *arg, int npending) 1030 { 1031 struct ieee80211vap *vap = arg; 1032 1033 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1034 } 1035 1036 static void 1037 ipw_scandone(void *arg, int npending) 1038 { 1039 struct ieee80211vap *vap = arg; 1040 1041 ieee80211_scan_done(vap); 1042 } 1043 1044 static void 1045 ipw_bmiss(void *arg, int npending) 1046 { 1047 struct ieee80211com *ic = arg; 1048 1049 ieee80211_beacon_miss(ic); 1050 } 1051 1052 static void 1053 ipw_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 1054 { 1055 #define IEEESTATE(vap) ieee80211_state_name[vap->iv_state] 1056 struct ifnet *ifp = sc->sc_ifp; 1057 struct ieee80211com *ic = ifp->if_l2com; 1058 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1059 uint32_t state; 1060 1061 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1062 1063 state = le32toh(*mtod(sbuf->m, uint32_t *)); 1064 1065 switch (state) { 1066 case IPW_STATE_ASSOCIATED: 1067 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n", 1068 IEEESTATE(vap), sc->flags)); 1069 /* XXX suppress state change in case the fw auto-associates */ 1070 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) { 1071 DPRINTF(("Unexpected association (%s, flags 0x%x)\n", 1072 IEEESTATE(vap), sc->flags)); 1073 break; 1074 } 1075 sc->flags &= ~IPW_FLAG_ASSOCIATING; 1076 sc->flags |= IPW_FLAG_ASSOCIATED; 1077 taskqueue_enqueue(taskqueue_swi, 1078 &IPW_VAP(vap)->assoc_success_task); 1079 break; 1080 1081 case IPW_STATE_SCANNING: 1082 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n", 1083 IEEESTATE(vap), sc->flags)); 1084 /* 1085 * NB: Check driver state for association on assoc 1086 * loss as the firmware will immediately start to 1087 * scan and we would treat it as a beacon miss if 1088 * we checked the 802.11 layer state. 1089 */ 1090 if (sc->flags & IPW_FLAG_ASSOCIATED) { 1091 /* XXX probably need to issue disassoc to fw */ 1092 taskqueue_enqueue(taskqueue_swi, &sc->sc_bmiss_task); 1093 } 1094 break; 1095 1096 case IPW_STATE_SCAN_COMPLETE: 1097 /* 1098 * XXX For some reason scan requests generate scan 1099 * started + scan done events before any traffic is 1100 * received (e.g. probe response frames). We work 1101 * around this by marking the HACK flag and skipping 1102 * the first scan complete event. 1103 */ 1104 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n", 1105 IEEESTATE(vap), sc->flags)); 1106 if (sc->flags & IPW_FLAG_HACK) { 1107 sc->flags &= ~IPW_FLAG_HACK; 1108 break; 1109 } 1110 if (sc->flags & IPW_FLAG_SCANNING) { 1111 taskqueue_enqueue(taskqueue_swi, 1112 &IPW_VAP(vap)->scandone_task); 1113 sc->flags &= ~IPW_FLAG_SCANNING; 1114 sc->sc_scan_timer = 0; 1115 } 1116 break; 1117 1118 case IPW_STATE_ASSOCIATION_LOST: 1119 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n", 1120 IEEESTATE(vap), sc->flags)); 1121 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED); 1122 if (vap->iv_state == IEEE80211_S_RUN) 1123 taskqueue_enqueue(taskqueue_swi, 1124 &IPW_VAP(vap)->assoc_failed_task); 1125 break; 1126 1127 case IPW_STATE_DISABLED: 1128 /* XXX? is this right? */ 1129 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING | 1130 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED); 1131 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n", 1132 IEEESTATE(vap), sc->flags)); 1133 break; 1134 1135 case IPW_STATE_RADIO_DISABLED: 1136 device_printf(sc->sc_dev, "radio turned off\n"); 1137 ieee80211_notify_radio(ic, 0); 1138 ipw_stop_locked(sc); 1139 /* XXX start polling thread to detect radio on */ 1140 break; 1141 1142 default: 1143 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n", 1144 __func__, state, IEEESTATE(vap), sc->flags)); 1145 break; 1146 } 1147 #undef IEEESTATE 1148 } 1149 1150 /* 1151 * Set driver state for current channel. 1152 */ 1153 static void 1154 ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan) 1155 { 1156 struct ifnet *ifp = sc->sc_ifp; 1157 struct ieee80211com *ic = ifp->if_l2com; 1158 1159 ic->ic_curchan = chan; 1160 sc->sc_rxtap.wr_chan_freq = sc->sc_txtap.wt_chan_freq = 1161 htole16(ic->ic_curchan->ic_freq); 1162 sc->sc_rxtap.wr_chan_flags = sc->sc_txtap.wt_chan_flags = 1163 htole16(ic->ic_curchan->ic_flags); 1164 } 1165 1166 /* 1167 * XXX: Hack to set the current channel to the value advertised in beacons or 1168 * probe responses. Only used during AP detection. 1169 */ 1170 static void 1171 ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m) 1172 { 1173 struct ifnet *ifp = sc->sc_ifp; 1174 struct ieee80211com *ic = ifp->if_l2com; 1175 struct ieee80211_channel *c; 1176 struct ieee80211_frame *wh; 1177 uint8_t subtype; 1178 uint8_t *frm, *efrm; 1179 1180 wh = mtod(m, struct ieee80211_frame *); 1181 1182 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1183 return; 1184 1185 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1186 1187 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1188 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1189 return; 1190 1191 /* XXX use ieee80211_parse_beacon */ 1192 frm = (uint8_t *)(wh + 1); 1193 efrm = mtod(m, uint8_t *) + m->m_len; 1194 1195 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1196 while (frm < efrm) { 1197 if (*frm == IEEE80211_ELEMID_DSPARMS) 1198 #if IEEE80211_CHAN_MAX < 255 1199 if (frm[2] <= IEEE80211_CHAN_MAX) 1200 #endif 1201 { 1202 DPRINTF(("Fixing channel to %d\n", frm[2])); 1203 c = ieee80211_find_channel(ic, 1204 ieee80211_ieee2mhz(frm[2], 0), 1205 IEEE80211_CHAN_B); 1206 if (c == NULL) 1207 c = &ic->ic_channels[0]; 1208 ipw_setcurchan(sc, c); 1209 } 1210 1211 frm += frm[1] + 2; 1212 } 1213 } 1214 1215 static void 1216 ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status, 1217 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf) 1218 { 1219 struct ifnet *ifp = sc->sc_ifp; 1220 struct ieee80211com *ic = ifp->if_l2com; 1221 struct mbuf *mnew, *m; 1222 struct ieee80211_node *ni; 1223 bus_addr_t physaddr; 1224 int error; 1225 IPW_LOCK_DECL; 1226 1227 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len), 1228 status->rssi)); 1229 1230 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) || 1231 le32toh(status->len) > MCLBYTES) 1232 return; 1233 1234 /* 1235 * Try to allocate a new mbuf for this ring element and load it before 1236 * processing the current mbuf. If the ring element cannot be loaded, 1237 * drop the received packet and reuse the old mbuf. In the unlikely 1238 * case that the old mbuf can't be reloaded either, explicitly panic. 1239 */ 1240 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1241 if (mnew == NULL) { 1242 ifp->if_ierrors++; 1243 return; 1244 } 1245 1246 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1247 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 1248 1249 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *), 1250 MCLBYTES, ipw_dma_map_addr, &physaddr, 0); 1251 if (error != 0) { 1252 m_freem(mnew); 1253 1254 /* try to reload the old mbuf */ 1255 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, 1256 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr, 1257 &physaddr, 0); 1258 if (error != 0) { 1259 /* very unlikely that it will fail... */ 1260 panic("%s: could not load old rx mbuf", 1261 device_get_name(sc->sc_dev)); 1262 } 1263 ifp->if_ierrors++; 1264 return; 1265 } 1266 1267 /* 1268 * New mbuf successfully loaded, update Rx ring and continue 1269 * processing. 1270 */ 1271 m = sbuf->m; 1272 sbuf->m = mnew; 1273 sbd->bd->physaddr = htole32(physaddr); 1274 1275 /* finalize mbuf */ 1276 m->m_pkthdr.rcvif = ifp; 1277 m->m_pkthdr.len = m->m_len = le32toh(status->len); 1278 1279 if (bpf_peers_present(ifp->if_bpf)) { 1280 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap; 1281 1282 tap->wr_flags = 0; 1283 tap->wr_antsignal = status->rssi + IPW_RSSI_TO_DBM; 1284 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 1285 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 1286 1287 bpf_mtap2(ifp->if_bpf, tap, sc->sc_rxtap_len, m); 1288 } 1289 1290 if (sc->flags & IPW_FLAG_SCANNING) 1291 ipw_fix_channel(sc, m); 1292 1293 IPW_UNLOCK(sc); 1294 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1295 if (ni != NULL) { 1296 (void) ieee80211_input(ni, m, status->rssi, -95, 0); 1297 ieee80211_free_node(ni); 1298 } else 1299 (void) ieee80211_input_all(ic, m, status->rssi, -95, 0); 1300 IPW_LOCK(sc); 1301 1302 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1303 } 1304 1305 static void 1306 ipw_rx_intr(struct ipw_softc *sc) 1307 { 1308 struct ipw_status *status; 1309 struct ipw_soft_bd *sbd; 1310 struct ipw_soft_buf *sbuf; 1311 uint32_t r, i; 1312 1313 if (!(sc->flags & IPW_FLAG_FW_INITED)) 1314 return; 1315 1316 r = CSR_READ_4(sc, IPW_CSR_RX_READ); 1317 1318 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD); 1319 1320 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) { 1321 status = &sc->status_list[i]; 1322 sbd = &sc->srbd_list[i]; 1323 sbuf = sbd->priv; 1324 1325 switch (le16toh(status->code) & 0xf) { 1326 case IPW_STATUS_CODE_COMMAND: 1327 ipw_rx_cmd_intr(sc, sbuf); 1328 break; 1329 1330 case IPW_STATUS_CODE_NEWSTATE: 1331 ipw_rx_newstate_intr(sc, sbuf); 1332 break; 1333 1334 case IPW_STATUS_CODE_DATA_802_3: 1335 case IPW_STATUS_CODE_DATA_802_11: 1336 ipw_rx_data_intr(sc, status, sbd, sbuf); 1337 break; 1338 1339 case IPW_STATUS_CODE_NOTIFICATION: 1340 DPRINTFN(2, ("notification status, len %u flags 0x%x\n", 1341 le32toh(status->len), status->flags)); 1342 /* XXX maybe drive state machine AUTH->ASSOC? */ 1343 break; 1344 1345 default: 1346 device_printf(sc->sc_dev, "unexpected status code %u\n", 1347 le16toh(status->code)); 1348 } 1349 1350 /* firmware was killed, stop processing received frames */ 1351 if (!(sc->flags & IPW_FLAG_FW_INITED)) 1352 return; 1353 1354 sbd->bd->flags = 0; 1355 } 1356 1357 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1358 1359 /* kick the firmware */ 1360 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1; 1361 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 1362 } 1363 1364 static void 1365 ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd) 1366 { 1367 struct ipw_soft_hdr *shdr; 1368 struct ipw_soft_buf *sbuf; 1369 1370 switch (sbd->type) { 1371 case IPW_SBD_TYPE_COMMAND: 1372 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, 1373 BUS_DMASYNC_POSTWRITE); 1374 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map); 1375 break; 1376 1377 case IPW_SBD_TYPE_HEADER: 1378 shdr = sbd->priv; 1379 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE); 1380 bus_dmamap_unload(sc->hdr_dmat, shdr->map); 1381 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 1382 break; 1383 1384 case IPW_SBD_TYPE_DATA: 1385 sbuf = sbd->priv; 1386 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, 1387 BUS_DMASYNC_POSTWRITE); 1388 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1389 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 1390 1391 if (sbuf->m->m_flags & M_TXCB) 1392 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/); 1393 m_freem(sbuf->m); 1394 ieee80211_free_node(sbuf->ni); 1395 1396 sc->sc_tx_timer = 0; 1397 break; 1398 } 1399 1400 sbd->type = IPW_SBD_TYPE_NOASSOC; 1401 } 1402 1403 static void 1404 ipw_tx_intr(struct ipw_softc *sc) 1405 { 1406 struct ifnet *ifp = sc->sc_ifp; 1407 struct ipw_soft_bd *sbd; 1408 uint32_t r, i; 1409 1410 if (!(sc->flags & IPW_FLAG_FW_INITED)) 1411 return; 1412 1413 r = CSR_READ_4(sc, IPW_CSR_TX_READ); 1414 1415 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) { 1416 sbd = &sc->stbd_list[i]; 1417 1418 if (sbd->type == IPW_SBD_TYPE_DATA) 1419 ifp->if_opackets++; 1420 1421 ipw_release_sbd(sc, sbd); 1422 sc->txfree++; 1423 } 1424 1425 /* remember what the firmware has processed */ 1426 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1; 1427 1428 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1429 ipw_start_locked(ifp); 1430 } 1431 1432 static void 1433 ipw_intr(void *arg) 1434 { 1435 struct ipw_softc *sc = arg; 1436 uint32_t r; 1437 IPW_LOCK_DECL; 1438 1439 IPW_LOCK(sc); 1440 1441 if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) { 1442 IPW_UNLOCK(sc); 1443 return; 1444 } 1445 1446 /* disable interrupts */ 1447 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1448 1449 /* acknowledge all interrupts */ 1450 CSR_WRITE_4(sc, IPW_CSR_INTR, r); 1451 1452 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) { 1453 device_printf(sc->sc_dev, "firmware error\n"); 1454 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task); 1455 r = 0; /* don't process more interrupts */ 1456 } 1457 1458 if (r & IPW_INTR_FW_INIT_DONE) 1459 wakeup(sc); 1460 1461 if (r & IPW_INTR_RX_TRANSFER) 1462 ipw_rx_intr(sc); 1463 1464 if (r & IPW_INTR_TX_TRANSFER) 1465 ipw_tx_intr(sc); 1466 1467 /* re-enable interrupts */ 1468 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1469 1470 IPW_UNLOCK(sc); 1471 } 1472 1473 static void 1474 ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1475 { 1476 if (error != 0) 1477 return; 1478 1479 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 1480 1481 *(bus_addr_t *)arg = segs[0].ds_addr; 1482 } 1483 1484 static const char * 1485 ipw_cmdname(int cmd) 1486 { 1487 #define N(a) (sizeof(a) / sizeof(a[0])) 1488 static const struct { 1489 int cmd; 1490 const char *name; 1491 } cmds[] = { 1492 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" }, 1493 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" }, 1494 { IPW_CMD_DISABLE, "DISABLE" }, 1495 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" }, 1496 { IPW_CMD_ENABLE, "ENABLE" }, 1497 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" }, 1498 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" }, 1499 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" }, 1500 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" }, 1501 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" }, 1502 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" }, 1503 { IPW_CMD_SET_ESSID, "SET_ESSID" }, 1504 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" }, 1505 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" }, 1506 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" }, 1507 { IPW_CMD_SET_MODE, "SET_MODE" }, 1508 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" }, 1509 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" }, 1510 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" }, 1511 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" }, 1512 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" }, 1513 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" }, 1514 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" }, 1515 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" }, 1516 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" }, 1517 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" }, 1518 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" }, 1519 1520 }; 1521 static char buf[12]; 1522 int i; 1523 1524 for (i = 0; i < N(cmds); i++) 1525 if (cmds[i].cmd == cmd) 1526 return cmds[i].name; 1527 snprintf(buf, sizeof(buf), "%u", cmd); 1528 return buf; 1529 #undef N 1530 } 1531 1532 /* 1533 * Send a command to the firmware and wait for the acknowledgement. 1534 */ 1535 static int 1536 ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len) 1537 { 1538 struct ipw_soft_bd *sbd; 1539 bus_addr_t physaddr; 1540 int error; 1541 1542 IPW_LOCK_ASSERT(sc); 1543 1544 if (sc->flags & IPW_FLAG_BUSY) { 1545 device_printf(sc->sc_dev, "%s: %s not sent, busy\n", 1546 __func__, ipw_cmdname(type)); 1547 return EAGAIN; 1548 } 1549 sc->flags |= IPW_FLAG_BUSY; 1550 1551 sbd = &sc->stbd_list[sc->txcur]; 1552 1553 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd, 1554 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0); 1555 if (error != 0) { 1556 device_printf(sc->sc_dev, "could not map command DMA memory\n"); 1557 sc->flags &= ~IPW_FLAG_BUSY; 1558 return error; 1559 } 1560 1561 sc->cmd.type = htole32(type); 1562 sc->cmd.subtype = 0; 1563 sc->cmd.len = htole32(len); 1564 sc->cmd.seq = 0; 1565 memcpy(sc->cmd.data, data, len); 1566 1567 sbd->type = IPW_SBD_TYPE_COMMAND; 1568 sbd->bd->physaddr = htole32(physaddr); 1569 sbd->bd->len = htole32(sizeof (struct ipw_cmd)); 1570 sbd->bd->nfrag = 1; 1571 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND | 1572 IPW_BD_FLAG_TX_LAST_FRAGMENT; 1573 1574 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE); 1575 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1576 1577 #ifdef IPW_DEBUG 1578 if (ipw_debug >= 4) { 1579 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type, 1580 0, 0, len); 1581 /* Print the data buffer in the higher debug level */ 1582 if (ipw_debug >= 9 && len > 0) { 1583 printf(" data: 0x"); 1584 for (int i = 1; i <= len; i++) 1585 printf("%1D", (u_char *)data + len - i, ""); 1586 } 1587 printf("\n"); 1588 } 1589 #endif 1590 1591 /* kick firmware */ 1592 sc->txfree--; 1593 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1594 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1595 1596 /* wait at most one second for command to complete */ 1597 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz); 1598 if (error != 0) { 1599 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n", 1600 __func__, ipw_cmdname(type), error); 1601 sc->flags &= ~IPW_FLAG_BUSY; 1602 return (error); 1603 } 1604 return (0); 1605 } 1606 1607 static int 1608 ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni) 1609 { 1610 struct ipw_softc *sc = ifp->if_softc; 1611 struct ieee80211com *ic = ifp->if_l2com; 1612 struct ieee80211_frame *wh; 1613 struct ipw_soft_bd *sbd; 1614 struct ipw_soft_hdr *shdr; 1615 struct ipw_soft_buf *sbuf; 1616 struct ieee80211_key *k; 1617 struct mbuf *mnew; 1618 bus_dma_segment_t segs[IPW_MAX_NSEG]; 1619 bus_addr_t physaddr; 1620 int nsegs, error, i; 1621 1622 wh = mtod(m0, struct ieee80211_frame *); 1623 1624 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1625 k = ieee80211_crypto_encap(ni, m0); 1626 if (k == NULL) { 1627 m_freem(m0); 1628 return ENOBUFS; 1629 } 1630 /* packet header may have moved, reset our local pointer */ 1631 wh = mtod(m0, struct ieee80211_frame *); 1632 } 1633 1634 if (bpf_peers_present(ifp->if_bpf)) { 1635 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap; 1636 1637 tap->wt_flags = 0; 1638 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1639 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1640 1641 bpf_mtap2(ifp->if_bpf, tap, sc->sc_txtap_len, m0); 1642 } 1643 1644 shdr = SLIST_FIRST(&sc->free_shdr); 1645 sbuf = SLIST_FIRST(&sc->free_sbuf); 1646 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool")); 1647 1648 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND); 1649 shdr->hdr.subtype = 0; 1650 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0; 1651 shdr->hdr.encrypt = 0; 1652 shdr->hdr.keyidx = 0; 1653 shdr->hdr.keysz = 0; 1654 shdr->hdr.fragmentsz = 0; 1655 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2); 1656 if (ic->ic_opmode == IEEE80211_M_STA) 1657 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3); 1658 else 1659 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1); 1660 1661 /* trim IEEE802.11 header */ 1662 m_adj(m0, sizeof (struct ieee80211_frame)); 1663 1664 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs, 1665 &nsegs, 0); 1666 if (error != 0 && error != EFBIG) { 1667 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1668 error); 1669 m_freem(m0); 1670 return error; 1671 } 1672 if (error != 0) { 1673 mnew = m_defrag(m0, M_DONTWAIT); 1674 if (mnew == NULL) { 1675 device_printf(sc->sc_dev, 1676 "could not defragment mbuf\n"); 1677 m_freem(m0); 1678 return ENOBUFS; 1679 } 1680 m0 = mnew; 1681 1682 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, 1683 segs, &nsegs, 0); 1684 if (error != 0) { 1685 device_printf(sc->sc_dev, 1686 "could not map mbuf (error %d)\n", error); 1687 m_freem(m0); 1688 return error; 1689 } 1690 } 1691 1692 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr, 1693 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0); 1694 if (error != 0) { 1695 device_printf(sc->sc_dev, "could not map header DMA memory\n"); 1696 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1697 m_freem(m0); 1698 return error; 1699 } 1700 1701 SLIST_REMOVE_HEAD(&sc->free_sbuf, next); 1702 SLIST_REMOVE_HEAD(&sc->free_shdr, next); 1703 1704 sbd = &sc->stbd_list[sc->txcur]; 1705 sbd->type = IPW_SBD_TYPE_HEADER; 1706 sbd->priv = shdr; 1707 sbd->bd->physaddr = htole32(physaddr); 1708 sbd->bd->len = htole32(sizeof (struct ipw_hdr)); 1709 sbd->bd->nfrag = 1 + nsegs; 1710 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 | 1711 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1712 1713 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n", 1714 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted, 1715 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr, 1716 ":")); 1717 1718 sc->txfree--; 1719 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1720 1721 sbuf->m = m0; 1722 sbuf->ni = ni; 1723 1724 for (i = 0; i < nsegs; i++) { 1725 sbd = &sc->stbd_list[sc->txcur]; 1726 1727 sbd->bd->physaddr = htole32(segs[i].ds_addr); 1728 sbd->bd->len = htole32(segs[i].ds_len); 1729 sbd->bd->nfrag = 0; 1730 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3; 1731 if (i == nsegs - 1) { 1732 sbd->type = IPW_SBD_TYPE_DATA; 1733 sbd->priv = sbuf; 1734 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT; 1735 } else { 1736 sbd->type = IPW_SBD_TYPE_NOASSOC; 1737 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1738 } 1739 1740 DPRINTFN(5, ("sending fragment (%d)\n", i)); 1741 1742 sc->txfree--; 1743 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1744 } 1745 1746 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE); 1747 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE); 1748 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1749 1750 /* kick firmware */ 1751 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1752 1753 return 0; 1754 } 1755 1756 static int 1757 ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1758 const struct ieee80211_bpf_params *params) 1759 { 1760 /* no support; just discard */ 1761 m_freem(m); 1762 ieee80211_free_node(ni); 1763 return 0; 1764 } 1765 1766 static void 1767 ipw_start(struct ifnet *ifp) 1768 { 1769 struct ipw_softc *sc = ifp->if_softc; 1770 IPW_LOCK_DECL; 1771 1772 IPW_LOCK(sc); 1773 ipw_start_locked(ifp); 1774 IPW_UNLOCK(sc); 1775 } 1776 1777 static void 1778 ipw_start_locked(struct ifnet *ifp) 1779 { 1780 struct ipw_softc *sc = ifp->if_softc; 1781 struct ieee80211_node *ni; 1782 struct mbuf *m; 1783 1784 IPW_LOCK_ASSERT(sc); 1785 1786 for (;;) { 1787 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1788 if (m == NULL) 1789 break; 1790 if (sc->txfree < 1 + IPW_MAX_NSEG) { 1791 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1792 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1793 break; 1794 } 1795 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1796 m = ieee80211_encap(ni, m); 1797 if (m == NULL) { 1798 ieee80211_free_node(ni); 1799 continue; 1800 } 1801 if (ipw_tx_start(ifp, m, ni) != 0) { 1802 ieee80211_free_node(ni); 1803 ifp->if_oerrors++; 1804 break; 1805 } 1806 /* start watchdog timer */ 1807 sc->sc_tx_timer = 5; 1808 } 1809 } 1810 1811 static void 1812 ipw_watchdog(void *arg) 1813 { 1814 struct ipw_softc *sc = arg; 1815 struct ifnet *ifp = sc->sc_ifp; 1816 struct ieee80211com *ic = ifp->if_l2com; 1817 1818 IPW_LOCK_ASSERT(sc); 1819 1820 if (sc->sc_tx_timer > 0) { 1821 if (--sc->sc_tx_timer == 0) { 1822 if_printf(ifp, "device timeout\n"); 1823 ifp->if_oerrors++; 1824 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task); 1825 } 1826 } 1827 if (sc->sc_scan_timer > 0) { 1828 if (--sc->sc_scan_timer == 0) { 1829 DPRINTFN(3, ("Scan timeout\n")); 1830 /* End the scan */ 1831 if (sc->flags & IPW_FLAG_SCANNING) { 1832 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps)); 1833 sc->flags &= ~IPW_FLAG_SCANNING; 1834 } 1835 } 1836 } 1837 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1838 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc); 1839 } 1840 1841 static int 1842 ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1843 { 1844 struct ipw_softc *sc = ifp->if_softc; 1845 struct ieee80211com *ic = ifp->if_l2com; 1846 struct ifreq *ifr = (struct ifreq *) data; 1847 int error = 0, startall = 0; 1848 IPW_LOCK_DECL; 1849 1850 switch (cmd) { 1851 case SIOCSIFFLAGS: 1852 IPW_LOCK(sc); 1853 if (ifp->if_flags & IFF_UP) { 1854 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1855 ipw_init_locked(sc); 1856 startall = 1; 1857 } 1858 } else { 1859 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1860 ipw_stop_locked(sc); 1861 } 1862 IPW_UNLOCK(sc); 1863 if (startall) 1864 ieee80211_start_all(ic); 1865 break; 1866 case SIOCGIFMEDIA: 1867 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1868 break; 1869 case SIOCGIFADDR: 1870 error = ether_ioctl(ifp, cmd, data); 1871 break; 1872 default: 1873 error = EINVAL; 1874 break; 1875 } 1876 return error; 1877 } 1878 1879 static void 1880 ipw_stop_master(struct ipw_softc *sc) 1881 { 1882 uint32_t tmp; 1883 int ntries; 1884 1885 /* disable interrupts */ 1886 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1887 1888 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER); 1889 for (ntries = 0; ntries < 50; ntries++) { 1890 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED) 1891 break; 1892 DELAY(10); 1893 } 1894 if (ntries == 50) 1895 device_printf(sc->sc_dev, "timeout waiting for master\n"); 1896 1897 tmp = CSR_READ_4(sc, IPW_CSR_RST); 1898 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET); 1899 1900 /* Clear all flags except the following */ 1901 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH; 1902 } 1903 1904 static int 1905 ipw_reset(struct ipw_softc *sc) 1906 { 1907 uint32_t tmp; 1908 int ntries; 1909 1910 ipw_stop_master(sc); 1911 1912 /* move adapter to D0 state */ 1913 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1914 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT); 1915 1916 /* wait for clock stabilization */ 1917 for (ntries = 0; ntries < 1000; ntries++) { 1918 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY) 1919 break; 1920 DELAY(200); 1921 } 1922 if (ntries == 1000) 1923 return EIO; 1924 1925 tmp = CSR_READ_4(sc, IPW_CSR_RST); 1926 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET); 1927 1928 DELAY(10); 1929 1930 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1931 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT); 1932 1933 return 0; 1934 } 1935 1936 static int 1937 ipw_waitfordisable(struct ipw_softc *sc, int waitfor) 1938 { 1939 int ms = hz < 1000 ? 1 : hz/10; 1940 int i, error; 1941 1942 for (i = 0; i < 100; i++) { 1943 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor) 1944 return 0; 1945 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms); 1946 if (error == 0 || error != EWOULDBLOCK) 1947 return 0; 1948 } 1949 DPRINTF(("%s: timeout waiting for %s\n", 1950 __func__, waitfor ? "disable" : "enable")); 1951 return ETIMEDOUT; 1952 } 1953 1954 static int 1955 ipw_enable(struct ipw_softc *sc) 1956 { 1957 int error; 1958 1959 if ((sc->flags & IPW_FLAG_ENABLED) == 0) { 1960 DPRINTF(("Enable adapter\n")); 1961 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1962 if (error != 0) 1963 return error; 1964 error = ipw_waitfordisable(sc, 0); 1965 if (error != 0) 1966 return error; 1967 sc->flags |= IPW_FLAG_ENABLED; 1968 } 1969 return 0; 1970 } 1971 1972 static int 1973 ipw_disable(struct ipw_softc *sc) 1974 { 1975 int error; 1976 1977 if (sc->flags & IPW_FLAG_ENABLED) { 1978 DPRINTF(("Disable adapter\n")); 1979 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0); 1980 if (error != 0) 1981 return error; 1982 error = ipw_waitfordisable(sc, 1); 1983 if (error != 0) 1984 return error; 1985 sc->flags &= ~IPW_FLAG_ENABLED; 1986 } 1987 return 0; 1988 } 1989 1990 /* 1991 * Upload the microcode to the device. 1992 */ 1993 static int 1994 ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size) 1995 { 1996 int ntries; 1997 1998 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1999 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 2000 2001 MEM_WRITE_2(sc, 0x220000, 0x0703); 2002 MEM_WRITE_2(sc, 0x220000, 0x0707); 2003 2004 MEM_WRITE_1(sc, 0x210014, 0x72); 2005 MEM_WRITE_1(sc, 0x210014, 0x72); 2006 2007 MEM_WRITE_1(sc, 0x210000, 0x40); 2008 MEM_WRITE_1(sc, 0x210000, 0x00); 2009 MEM_WRITE_1(sc, 0x210000, 0x40); 2010 2011 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size); 2012 2013 MEM_WRITE_1(sc, 0x210000, 0x00); 2014 MEM_WRITE_1(sc, 0x210000, 0x00); 2015 MEM_WRITE_1(sc, 0x210000, 0x80); 2016 2017 MEM_WRITE_2(sc, 0x220000, 0x0703); 2018 MEM_WRITE_2(sc, 0x220000, 0x0707); 2019 2020 MEM_WRITE_1(sc, 0x210014, 0x72); 2021 MEM_WRITE_1(sc, 0x210014, 0x72); 2022 2023 MEM_WRITE_1(sc, 0x210000, 0x00); 2024 MEM_WRITE_1(sc, 0x210000, 0x80); 2025 2026 for (ntries = 0; ntries < 10; ntries++) { 2027 if (MEM_READ_1(sc, 0x210000) & 1) 2028 break; 2029 DELAY(10); 2030 } 2031 if (ntries == 10) { 2032 device_printf(sc->sc_dev, 2033 "timeout waiting for ucode to initialize\n"); 2034 return EIO; 2035 } 2036 2037 MEM_WRITE_4(sc, 0x3000e0, 0); 2038 2039 return 0; 2040 } 2041 2042 /* set of macros to handle unaligned little endian data in firmware image */ 2043 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2044 #define GETLE16(p) ((p)[0] | (p)[1] << 8) 2045 static int 2046 ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size) 2047 { 2048 const uint8_t *p, *end; 2049 uint32_t tmp, dst; 2050 uint16_t len; 2051 int error; 2052 2053 p = fw; 2054 end = fw + size; 2055 while (p < end) { 2056 dst = GETLE32(p); p += 4; 2057 len = GETLE16(p); p += 2; 2058 2059 ipw_write_mem_1(sc, dst, p, len); 2060 p += len; 2061 } 2062 2063 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK | 2064 IPW_IO_LED_OFF); 2065 2066 /* enable interrupts */ 2067 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 2068 2069 /* kick the firmware */ 2070 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 2071 2072 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 2073 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY); 2074 2075 /* wait at most one second for firmware initialization to complete */ 2076 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) { 2077 device_printf(sc->sc_dev, "timeout waiting for firmware " 2078 "initialization to complete\n"); 2079 return error; 2080 } 2081 2082 tmp = CSR_READ_4(sc, IPW_CSR_IO); 2083 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK | 2084 IPW_IO_GPIO3_MASK); 2085 2086 return 0; 2087 } 2088 2089 static int 2090 ipw_setwepkeys(struct ipw_softc *sc) 2091 { 2092 struct ifnet *ifp = sc->sc_ifp; 2093 struct ieee80211com *ic = ifp->if_l2com; 2094 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2095 struct ipw_wep_key wepkey; 2096 struct ieee80211_key *wk; 2097 int error, i; 2098 2099 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2100 wk = &vap->iv_nw_keys[i]; 2101 2102 if (wk->wk_cipher == NULL || 2103 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP) 2104 continue; 2105 2106 wepkey.idx = i; 2107 wepkey.len = wk->wk_keylen; 2108 memset(wepkey.key, 0, sizeof wepkey.key); 2109 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2110 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2111 wepkey.len)); 2112 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey, 2113 sizeof wepkey); 2114 if (error != 0) 2115 return error; 2116 } 2117 return 0; 2118 } 2119 2120 static int 2121 ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen) 2122 { 2123 struct ipw_wpa_ie wpaie; 2124 2125 memset(&wpaie, 0, sizeof(wpaie)); 2126 wpaie.len = htole32(ielen); 2127 /* XXX verify length */ 2128 memcpy(&wpaie.ie, ie, ielen); 2129 DPRINTF(("Setting WPA IE\n")); 2130 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie)); 2131 } 2132 2133 static int 2134 ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid) 2135 { 2136 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 2137 2138 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) { 2139 DPRINTF(("Setting mandatory BSSID to null\n")); 2140 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0); 2141 } else { 2142 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":")); 2143 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, 2144 bssid, IEEE80211_ADDR_LEN); 2145 } 2146 } 2147 2148 static int 2149 ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen) 2150 { 2151 if (ssidlen == 0) { 2152 /* 2153 * A bug in the firmware breaks the ``don't associate'' 2154 * bit in the scan options command. To compensate for 2155 * this install a bogus ssid when no ssid is specified 2156 * so the firmware won't try to associate. 2157 */ 2158 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n")); 2159 return ipw_cmd(sc, IPW_CMD_SET_ESSID, 2160 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27" 2161 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31" 2162 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b" 2163 "\x3c\x3d", IEEE80211_NWID_LEN); 2164 } else { 2165 #ifdef IPW_DEBUG 2166 if (ipw_debug > 0) { 2167 printf("Setting ESSID to "); 2168 ieee80211_print_essid(ssid, ssidlen); 2169 printf("\n"); 2170 } 2171 #endif 2172 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen); 2173 } 2174 } 2175 2176 static int 2177 ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags) 2178 { 2179 struct ipw_scan_options opts; 2180 2181 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags)); 2182 opts.channels = htole32(chanmask); 2183 opts.flags = htole32(flags); 2184 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts)); 2185 } 2186 2187 /* 2188 * Handler for sc_scan_task. This is a simple wrapper around ipw_scan(). 2189 */ 2190 static void 2191 ipw_scan_task(void *context, int pending) 2192 { 2193 struct ipw_softc *sc = context; 2194 IPW_LOCK_DECL; 2195 2196 IPW_LOCK(sc); 2197 ipw_scan(sc); 2198 IPW_UNLOCK(sc); 2199 } 2200 2201 static int 2202 ipw_scan(struct ipw_softc *sc) 2203 { 2204 uint32_t params; 2205 int error; 2206 2207 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags)); 2208 2209 if (sc->flags & IPW_FLAG_SCANNING) 2210 return (EBUSY); 2211 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK; 2212 2213 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */ 2214 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE); 2215 if (error != 0) 2216 goto done; 2217 2218 /* 2219 * Setup null/bogus ssid so firmware doesn't use any previous 2220 * ssid to try and associate. This is because the ``don't 2221 * associate'' option bit is broken (sigh). 2222 */ 2223 error = ipw_setssid(sc, NULL, 0); 2224 if (error != 0) 2225 goto done; 2226 2227 /* 2228 * NB: the adapter may be disabled on association lost; 2229 * if so just re-enable it to kick off scanning. 2230 */ 2231 DPRINTF(("Starting scan\n")); 2232 sc->sc_scan_timer = 3; 2233 if (sc->flags & IPW_FLAG_ENABLED) { 2234 params = 0; /* XXX? */ 2235 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN, 2236 ¶ms, sizeof(params)); 2237 } else 2238 error = ipw_enable(sc); 2239 done: 2240 if (error != 0) { 2241 DPRINTF(("Scan failed\n")); 2242 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK); 2243 } 2244 return (error); 2245 } 2246 2247 static int 2248 ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan) 2249 { 2250 struct ifnet *ifp = sc->sc_ifp; 2251 struct ieee80211com *ic = ifp->if_l2com; 2252 uint32_t data; 2253 int error; 2254 2255 data = htole32(ieee80211_chan2ieee(ic, chan)); 2256 DPRINTF(("Setting channel to %u\n", le32toh(data))); 2257 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data); 2258 if (error == 0) 2259 ipw_setcurchan(sc, chan); 2260 return error; 2261 } 2262 2263 static void 2264 ipw_assoc_task(void *context, int pending) 2265 { 2266 struct ieee80211vap *vap = context; 2267 struct ifnet *ifp = vap->iv_ic->ic_ifp; 2268 struct ieee80211com *ic = ifp->if_l2com; 2269 struct ipw_softc *sc = ifp->if_softc; 2270 struct ieee80211_node *ni = vap->iv_bss; 2271 struct ipw_security security; 2272 uint32_t data; 2273 int error; 2274 IPW_LOCK_DECL; 2275 2276 IPW_LOCK(sc); 2277 error = ipw_disable(sc); 2278 if (error != 0) 2279 goto done; 2280 2281 memset(&security, 0, sizeof security); 2282 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ? 2283 IPW_AUTH_SHARED : IPW_AUTH_OPEN; 2284 security.ciphers = htole32(IPW_CIPHER_NONE); 2285 DPRINTF(("Setting authmode to %u\n", security.authmode)); 2286 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security, 2287 sizeof security); 2288 if (error != 0) 2289 goto done; 2290 2291 data = htole32(vap->iv_rtsthreshold); 2292 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2293 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2294 if (error != 0) 2295 goto done; 2296 2297 data = htole32(vap->iv_fragthreshold); 2298 DPRINTF(("Setting frag threshold to %u\n", le32toh(data))); 2299 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2300 if (error != 0) 2301 goto done; 2302 2303 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 2304 error = ipw_setwepkeys(sc); 2305 if (error != 0) 2306 goto done; 2307 2308 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) { 2309 data = htole32(vap->iv_def_txkey); 2310 DPRINTF(("Setting wep tx key index to %u\n", 2311 le32toh(data))); 2312 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data, 2313 sizeof data); 2314 if (error != 0) 2315 goto done; 2316 } 2317 } 2318 2319 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0); 2320 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data))); 2321 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data); 2322 if (error != 0) 2323 goto done; 2324 2325 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen); 2326 if (error != 0) 2327 goto done; 2328 2329 error = ipw_setbssid(sc, ni->ni_bssid); 2330 if (error != 0) 2331 goto done; 2332 2333 if (vap->iv_appie_assocreq != NULL) { 2334 struct ieee80211_appie *ie = vap->iv_appie_assocreq; 2335 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len); 2336 if (error != 0) 2337 goto done; 2338 } 2339 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2340 error = ipw_setchannel(sc, ni->ni_chan); 2341 if (error != 0) 2342 goto done; 2343 } 2344 2345 /* lock scan to ap's channel and enable associate */ 2346 error = ipw_setscanopts(sc, 2347 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0); 2348 if (error != 0) 2349 goto done; 2350 2351 error = ipw_enable(sc); /* finally, enable adapter */ 2352 if (error == 0) 2353 sc->flags |= IPW_FLAG_ASSOCIATING; 2354 done: 2355 IPW_UNLOCK(sc); 2356 } 2357 2358 static void 2359 ipw_disassoc_task(void *context, int pending) 2360 { 2361 struct ieee80211vap *vap = context; 2362 struct ifnet *ifp = vap->iv_ic->ic_ifp; 2363 struct ieee80211_node *ni = vap->iv_bss; 2364 struct ipw_softc *sc = ifp->if_softc; 2365 IPW_LOCK_DECL; 2366 2367 IPW_LOCK(sc); 2368 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":")); 2369 /* 2370 * NB: don't try to do this if ipw_stop_master has 2371 * shutdown the firmware and disabled interrupts. 2372 */ 2373 if (sc->flags & IPW_FLAG_FW_INITED) { 2374 sc->flags &= ~IPW_FLAG_ASSOCIATED; 2375 /* 2376 * NB: firmware currently ignores bssid parameter, but 2377 * supply it in case this changes (follow linux driver). 2378 */ 2379 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE, 2380 ni->ni_bssid, IEEE80211_ADDR_LEN); 2381 } 2382 IPW_UNLOCK(sc); 2383 } 2384 2385 /* 2386 * Handler for sc_init_task. This is a simple wrapper around ipw_init(). 2387 * It is called on firmware panics or on watchdog timeouts. 2388 */ 2389 static void 2390 ipw_init_task(void *context, int pending) 2391 { 2392 ipw_init(context); 2393 } 2394 2395 static void 2396 ipw_init(void *priv) 2397 { 2398 struct ipw_softc *sc = priv; 2399 struct ifnet *ifp = sc->sc_ifp; 2400 struct ieee80211com *ic = ifp->if_l2com; 2401 IPW_LOCK_DECL; 2402 2403 IPW_LOCK(sc); 2404 ipw_init_locked(sc); 2405 IPW_UNLOCK(sc); 2406 2407 ieee80211_start_all(ic); 2408 } 2409 2410 static void 2411 ipw_init_locked(struct ipw_softc *sc) 2412 { 2413 struct ifnet *ifp = sc->sc_ifp; 2414 struct ieee80211com *ic = ifp->if_l2com; 2415 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2416 const struct firmware *fp; 2417 const struct ipw_firmware_hdr *hdr; 2418 const char *fw; 2419 2420 IPW_LOCK_ASSERT(sc); 2421 2422 DPRINTF(("%s: state %s flags 0x%x\n", __func__, 2423 ieee80211_state_name[vap->iv_state], sc->flags)); 2424 2425 /* 2426 * Avoid re-entrant calls. We need to release the mutex in ipw_init() 2427 * when loading the firmware and we don't want to be called during this 2428 * operation. 2429 */ 2430 if (sc->flags & IPW_FLAG_INIT_LOCKED) 2431 return; 2432 sc->flags |= IPW_FLAG_INIT_LOCKED; 2433 2434 ipw_stop_locked(sc); 2435 2436 if (ipw_reset(sc) != 0) { 2437 device_printf(sc->sc_dev, "could not reset adapter\n"); 2438 goto fail; 2439 } 2440 2441 if (sc->sc_firmware == NULL) { 2442 device_printf(sc->sc_dev, "no firmware\n"); 2443 goto fail; 2444 } 2445 /* NB: consistency already checked on load */ 2446 fp = sc->sc_firmware; 2447 hdr = (const struct ipw_firmware_hdr *)fp->data; 2448 2449 DPRINTF(("Loading firmware image '%s'\n", fp->name)); 2450 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz); 2451 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) { 2452 device_printf(sc->sc_dev, "could not load microcode\n"); 2453 goto fail; 2454 } 2455 2456 ipw_stop_master(sc); 2457 2458 /* 2459 * Setup tx, rx and status rings. 2460 */ 2461 sc->txold = IPW_NTBD - 1; 2462 sc->txcur = 0; 2463 sc->txfree = IPW_NTBD - 2; 2464 sc->rxcur = IPW_NRBD - 1; 2465 2466 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys); 2467 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD); 2468 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0); 2469 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 2470 2471 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys); 2472 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD); 2473 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0); 2474 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 2475 2476 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys); 2477 2478 fw = (const char *)fp->data + sizeof *hdr; 2479 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) { 2480 device_printf(sc->sc_dev, "could not load firmware\n"); 2481 goto fail; 2482 } 2483 2484 sc->flags |= IPW_FLAG_FW_INITED; 2485 2486 /* retrieve information tables base addresses */ 2487 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE); 2488 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE); 2489 2490 ipw_write_table1(sc, IPW_INFO_LOCK, 0); 2491 2492 if (ipw_config(sc) != 0) { 2493 device_printf(sc->sc_dev, "device configuration failed\n"); 2494 goto fail; 2495 } 2496 2497 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc); 2498 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2499 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2500 2501 sc->flags &=~ IPW_FLAG_INIT_LOCKED; 2502 return; 2503 2504 fail: 2505 ipw_stop_locked(sc); 2506 sc->flags &=~ IPW_FLAG_INIT_LOCKED; 2507 } 2508 2509 static int 2510 ipw_config(struct ipw_softc *sc) 2511 { 2512 struct ifnet *ifp = sc->sc_ifp; 2513 struct ieee80211com *ic = ifp->if_l2com; 2514 struct ipw_configuration config; 2515 uint32_t data; 2516 int error; 2517 2518 error = ipw_disable(sc); 2519 if (error != 0) 2520 return error; 2521 2522 switch (ic->ic_opmode) { 2523 case IEEE80211_M_STA: 2524 case IEEE80211_M_HOSTAP: 2525 case IEEE80211_M_WDS: /* XXX */ 2526 data = htole32(IPW_MODE_BSS); 2527 break; 2528 case IEEE80211_M_IBSS: 2529 case IEEE80211_M_AHDEMO: 2530 data = htole32(IPW_MODE_IBSS); 2531 break; 2532 case IEEE80211_M_MONITOR: 2533 data = htole32(IPW_MODE_MONITOR); 2534 break; 2535 } 2536 DPRINTF(("Setting mode to %u\n", le32toh(data))); 2537 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data); 2538 if (error != 0) 2539 return error; 2540 2541 if (ic->ic_opmode == IEEE80211_M_IBSS || 2542 ic->ic_opmode == IEEE80211_M_MONITOR) { 2543 error = ipw_setchannel(sc, ic->ic_curchan); 2544 if (error != 0) 2545 return error; 2546 } 2547 2548 if (ic->ic_opmode == IEEE80211_M_MONITOR) 2549 return ipw_enable(sc); 2550 2551 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK | 2552 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE); 2553 if (ic->ic_opmode == IEEE80211_M_IBSS) 2554 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START); 2555 if (ifp->if_flags & IFF_PROMISC) 2556 config.flags |= htole32(IPW_CFG_PROMISCUOUS); 2557 config.bss_chan = htole32(0x3fff); /* channels 1-14 */ 2558 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */ 2559 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags))); 2560 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config); 2561 if (error != 0) 2562 return error; 2563 2564 data = htole32(0x3); /* 1, 2 */ 2565 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data))); 2566 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data); 2567 if (error != 0) 2568 return error; 2569 2570 /* NB: use the same rate set */ 2571 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data))); 2572 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data); 2573 if (error != 0) 2574 return error; 2575 2576 data = htole32(0xf); /* 1, 2, 5.5, 11 */ 2577 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data))); 2578 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data); 2579 if (error != 0) 2580 return error; 2581 2582 data = htole32(IPW_POWER_MODE_CAM); 2583 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2584 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data); 2585 if (error != 0) 2586 return error; 2587 2588 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2589 data = htole32(32); /* default value */ 2590 DPRINTF(("Setting tx power index to %u\n", le32toh(data))); 2591 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data, 2592 sizeof data); 2593 if (error != 0) 2594 return error; 2595 } 2596 2597 return 0; 2598 } 2599 2600 static void 2601 ipw_stop(void *priv) 2602 { 2603 struct ipw_softc *sc = priv; 2604 IPW_LOCK_DECL; 2605 2606 IPW_LOCK(sc); 2607 ipw_stop_locked(sc); 2608 IPW_UNLOCK(sc); 2609 } 2610 2611 static void 2612 ipw_stop_locked(struct ipw_softc *sc) 2613 { 2614 struct ifnet *ifp = sc->sc_ifp; 2615 int i; 2616 2617 IPW_LOCK_ASSERT(sc); 2618 2619 callout_stop(&sc->sc_wdtimer); 2620 ipw_stop_master(sc); 2621 2622 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET); 2623 2624 /* 2625 * Release tx buffers. 2626 */ 2627 for (i = 0; i < IPW_NTBD; i++) 2628 ipw_release_sbd(sc, &sc->stbd_list[i]); 2629 2630 sc->sc_tx_timer = 0; 2631 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2632 } 2633 2634 static int 2635 ipw_sysctl_stats(SYSCTL_HANDLER_ARGS) 2636 { 2637 struct ipw_softc *sc = arg1; 2638 uint32_t i, size, buf[256]; 2639 2640 memset(buf, 0, sizeof buf); 2641 2642 if (!(sc->flags & IPW_FLAG_FW_INITED)) 2643 return SYSCTL_OUT(req, buf, sizeof buf); 2644 2645 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base); 2646 2647 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256); 2648 for (i = 1; i < size; i++) 2649 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA)); 2650 2651 return SYSCTL_OUT(req, buf, size); 2652 } 2653 2654 static int 2655 ipw_sysctl_radio(SYSCTL_HANDLER_ARGS) 2656 { 2657 struct ipw_softc *sc = arg1; 2658 int val; 2659 2660 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) && 2661 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED)); 2662 2663 return SYSCTL_OUT(req, &val, sizeof val); 2664 } 2665 2666 static uint32_t 2667 ipw_read_table1(struct ipw_softc *sc, uint32_t off) 2668 { 2669 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off)); 2670 } 2671 2672 static void 2673 ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info) 2674 { 2675 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info); 2676 } 2677 2678 #if 0 2679 static int 2680 ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len) 2681 { 2682 uint32_t addr, info; 2683 uint16_t count, size; 2684 uint32_t total; 2685 2686 /* addr[4] + count[2] + size[2] */ 2687 addr = MEM_READ_4(sc, sc->table2_base + off); 2688 info = MEM_READ_4(sc, sc->table2_base + off + 4); 2689 2690 count = info >> 16; 2691 size = info & 0xffff; 2692 total = count * size; 2693 2694 if (total > *len) { 2695 *len = total; 2696 return EINVAL; 2697 } 2698 2699 *len = total; 2700 ipw_read_mem_1(sc, addr, buf, total); 2701 2702 return 0; 2703 } 2704 2705 static void 2706 ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2707 bus_size_t count) 2708 { 2709 for (; count > 0; offset++, datap++, count--) { 2710 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2711 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3)); 2712 } 2713 } 2714 #endif 2715 2716 static void 2717 ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap, 2718 bus_size_t count) 2719 { 2720 for (; count > 0; offset++, datap++, count--) { 2721 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2722 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap); 2723 } 2724 } 2725 2726 static void 2727 ipw_scan_start(struct ieee80211com *ic) 2728 { 2729 struct ifnet *ifp = ic->ic_ifp; 2730 struct ipw_softc *sc = ifp->if_softc; 2731 IPW_LOCK_DECL; 2732 2733 IPW_LOCK(sc); 2734 if (!(sc->flags & IPW_FLAG_SCANNING)) 2735 taskqueue_enqueue(taskqueue_swi, &sc->sc_scan_task); 2736 IPW_UNLOCK(sc); 2737 } 2738 2739 static void 2740 ipw_set_channel(struct ieee80211com *ic) 2741 { 2742 struct ifnet *ifp = ic->ic_ifp; 2743 struct ipw_softc *sc = ifp->if_softc; 2744 IPW_LOCK_DECL; 2745 2746 IPW_LOCK(sc); 2747 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2748 ipw_disable(sc); 2749 ipw_setchannel(sc, ic->ic_curchan); 2750 ipw_enable(sc); 2751 } 2752 IPW_UNLOCK(sc); 2753 } 2754 2755 static void 2756 ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 2757 { 2758 /* NB: all channels are scanned at once */ 2759 } 2760 2761 static void 2762 ipw_scan_mindwell(struct ieee80211_scan_state *ss) 2763 { 2764 /* NB: don't try to abort scan; wait for firmware to finish */ 2765 } 2766 2767 static void 2768 ipw_scan_end(struct ieee80211com *ic) 2769 { 2770 struct ifnet *ifp = ic->ic_ifp; 2771 struct ipw_softc *sc = ifp->if_softc; 2772 IPW_LOCK_DECL; 2773 2774 IPW_LOCK(sc); 2775 sc->flags &= ~IPW_FLAG_SCANNING; 2776 IPW_UNLOCK(sc); 2777 } 2778