Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/ipw/if_ipw.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /* $FreeBSD: releng/8.4/sys/dev/ipw/if_ipw.c 234571 2012-04-22 09:19:19Z bschmidt $ */ 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: releng/8.4/sys/dev/ipw/if_ipw.c 234571 2012-04-22 09:19:19Z bschmidt $"); 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_rx_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *); 122 static void ipw_rx_data_intr(struct ipw_softc *, struct ipw_status *, 123 struct ipw_soft_bd *, struct ipw_soft_buf *); 124 static void ipw_rx_intr(struct ipw_softc *); 125 static void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *); 126 static void ipw_tx_intr(struct ipw_softc *); 127 static void ipw_intr(void *); 128 static void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int); 129 static const char * ipw_cmdname(int); 130 static int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t); 131 static int ipw_tx_start(struct ifnet *, struct mbuf *, 132 struct ieee80211_node *); 133 static int ipw_raw_xmit(struct ieee80211_node *, struct mbuf *, 134 const struct ieee80211_bpf_params *); 135 static void ipw_start(struct ifnet *); 136 static void ipw_start_locked(struct ifnet *); 137 static void ipw_watchdog(void *); 138 static int ipw_ioctl(struct ifnet *, u_long, caddr_t); 139 static void ipw_stop_master(struct ipw_softc *); 140 static int ipw_enable(struct ipw_softc *); 141 static int ipw_disable(struct ipw_softc *); 142 static int ipw_reset(struct ipw_softc *); 143 static int ipw_load_ucode(struct ipw_softc *, const char *, int); 144 static int ipw_load_firmware(struct ipw_softc *, const char *, int); 145 static int ipw_config(struct ipw_softc *); 146 static void ipw_assoc(struct ieee80211com *, struct ieee80211vap *); 147 static void ipw_disassoc(struct ieee80211com *, struct ieee80211vap *); 148 static void ipw_init_task(void *, int); 149 static void ipw_init(void *); 150 static void ipw_init_locked(struct ipw_softc *); 151 static void ipw_stop(void *); 152 static void ipw_stop_locked(struct ipw_softc *); 153 static int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS); 154 static int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS); 155 static uint32_t ipw_read_table1(struct ipw_softc *, uint32_t); 156 static void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t); 157 #if 0 158 static int ipw_read_table2(struct ipw_softc *, uint32_t, void *, 159 uint32_t *); 160 static void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *, 161 bus_size_t); 162 #endif 163 static void ipw_write_mem_1(struct ipw_softc *, bus_size_t, 164 const uint8_t *, bus_size_t); 165 static int ipw_scan(struct ipw_softc *); 166 static void ipw_scan_start(struct ieee80211com *); 167 static void ipw_scan_end(struct ieee80211com *); 168 static void ipw_set_channel(struct ieee80211com *); 169 static void ipw_scan_curchan(struct ieee80211_scan_state *, 170 unsigned long maxdwell); 171 static void ipw_scan_mindwell(struct ieee80211_scan_state *); 172 173 static int ipw_probe(device_t); 174 static int ipw_attach(device_t); 175 static int ipw_detach(device_t); 176 static int ipw_shutdown(device_t); 177 static int ipw_suspend(device_t); 178 static int ipw_resume(device_t); 179 180 static device_method_t ipw_methods[] = { 181 /* Device interface */ 182 DEVMETHOD(device_probe, ipw_probe), 183 DEVMETHOD(device_attach, ipw_attach), 184 DEVMETHOD(device_detach, ipw_detach), 185 DEVMETHOD(device_shutdown, ipw_shutdown), 186 DEVMETHOD(device_suspend, ipw_suspend), 187 DEVMETHOD(device_resume, ipw_resume), 188 189 { 0, 0 } 190 }; 191 192 static driver_t ipw_driver = { 193 "ipw", 194 ipw_methods, 195 sizeof (struct ipw_softc) 196 }; 197 198 static devclass_t ipw_devclass; 199 200 DRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, 0, 0); 201 202 static int 203 ipw_probe(device_t dev) 204 { 205 const struct ipw_ident *ident; 206 207 for (ident = ipw_ident_table; ident->name != NULL; ident++) { 208 if (pci_get_vendor(dev) == ident->vendor && 209 pci_get_device(dev) == ident->device) { 210 device_set_desc(dev, ident->name); 211 return 0; 212 } 213 } 214 return ENXIO; 215 } 216 217 /* Base Address Register */ 218 #define IPW_PCI_BAR0 0x10 219 220 static int 221 ipw_attach(device_t dev) 222 { 223 struct ipw_softc *sc = device_get_softc(dev); 224 struct ifnet *ifp; 225 struct ieee80211com *ic; 226 struct ieee80211_channel *c; 227 uint16_t val; 228 int error, i; 229 uint8_t macaddr[IEEE80211_ADDR_LEN]; 230 231 sc->sc_dev = dev; 232 233 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 234 MTX_DEF | MTX_RECURSE); 235 236 TASK_INIT(&sc->sc_init_task, 0, ipw_init_task, sc); 237 callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0); 238 239 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 240 device_printf(dev, "chip is in D%d power mode " 241 "-- setting to D0\n", pci_get_powerstate(dev)); 242 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 243 } 244 245 pci_write_config(dev, 0x41, 0, 1); 246 247 /* enable bus-mastering */ 248 pci_enable_busmaster(dev); 249 250 sc->mem_rid = IPW_PCI_BAR0; 251 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 252 RF_ACTIVE); 253 if (sc->mem == NULL) { 254 device_printf(dev, "could not allocate memory resource\n"); 255 goto fail; 256 } 257 258 sc->sc_st = rman_get_bustag(sc->mem); 259 sc->sc_sh = rman_get_bushandle(sc->mem); 260 261 sc->irq_rid = 0; 262 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 263 RF_ACTIVE | RF_SHAREABLE); 264 if (sc->irq == NULL) { 265 device_printf(dev, "could not allocate interrupt resource\n"); 266 goto fail1; 267 } 268 269 if (ipw_reset(sc) != 0) { 270 device_printf(dev, "could not reset adapter\n"); 271 goto fail2; 272 } 273 274 if (ipw_dma_alloc(sc) != 0) { 275 device_printf(dev, "could not allocate DMA resources\n"); 276 goto fail2; 277 } 278 279 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 280 if (ifp == NULL) { 281 device_printf(dev, "can not if_alloc()\n"); 282 goto fail3; 283 } 284 ic = ifp->if_l2com; 285 286 ifp->if_softc = sc; 287 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 288 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 289 ifp->if_init = ipw_init; 290 ifp->if_ioctl = ipw_ioctl; 291 ifp->if_start = ipw_start; 292 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 293 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 294 IFQ_SET_READY(&ifp->if_snd); 295 296 ic->ic_ifp = ifp; 297 ic->ic_opmode = IEEE80211_M_STA; 298 ic->ic_phytype = IEEE80211_T_DS; 299 300 /* set device capabilities */ 301 ic->ic_caps = 302 IEEE80211_C_STA /* station mode supported */ 303 | IEEE80211_C_IBSS /* IBSS mode supported */ 304 | IEEE80211_C_MONITOR /* monitor mode supported */ 305 | IEEE80211_C_PMGT /* power save supported */ 306 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 307 | IEEE80211_C_WPA /* 802.11i supported */ 308 ; 309 310 /* read MAC address from EEPROM */ 311 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0); 312 macaddr[0] = val >> 8; 313 macaddr[1] = val & 0xff; 314 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1); 315 macaddr[2] = val >> 8; 316 macaddr[3] = val & 0xff; 317 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2); 318 macaddr[4] = val >> 8; 319 macaddr[5] = val & 0xff; 320 321 /* set supported .11b channels (read from EEPROM) */ 322 if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0) 323 val = 0x7ff; /* default to channels 1-11 */ 324 val <<= 1; 325 for (i = 1; i < 16; i++) { 326 if (val & (1 << i)) { 327 c = &ic->ic_channels[ic->ic_nchans++]; 328 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 329 c->ic_flags = IEEE80211_CHAN_B; 330 c->ic_ieee = i; 331 } 332 } 333 334 /* check support for radio transmitter switch in EEPROM */ 335 if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8)) 336 sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH; 337 338 ieee80211_ifattach(ic, macaddr); 339 ic->ic_scan_start = ipw_scan_start; 340 ic->ic_scan_end = ipw_scan_end; 341 ic->ic_set_channel = ipw_set_channel; 342 ic->ic_scan_curchan = ipw_scan_curchan; 343 ic->ic_scan_mindwell = ipw_scan_mindwell; 344 ic->ic_raw_xmit = ipw_raw_xmit; 345 346 ic->ic_vap_create = ipw_vap_create; 347 ic->ic_vap_delete = ipw_vap_delete; 348 349 ieee80211_radiotap_attach(ic, 350 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 351 IPW_TX_RADIOTAP_PRESENT, 352 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 353 IPW_RX_RADIOTAP_PRESENT); 354 355 /* 356 * Add a few sysctl knobs. 357 */ 358 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 359 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio", 360 CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I", 361 "radio transmitter switch state (0=off, 1=on)"); 362 363 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 364 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats", 365 CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S", 366 "statistics"); 367 368 /* 369 * Hook our interrupt after all initialization is complete. 370 */ 371 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 372 NULL, ipw_intr, sc, &sc->sc_ih); 373 if (error != 0) { 374 device_printf(dev, "could not set up interrupt\n"); 375 goto fail4; 376 } 377 378 if (bootverbose) 379 ieee80211_announce(ic); 380 381 return 0; 382 fail4: 383 if_free(ifp); 384 fail3: 385 ipw_release(sc); 386 fail2: 387 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 388 fail1: 389 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 390 fail: 391 mtx_destroy(&sc->sc_mtx); 392 return ENXIO; 393 } 394 395 static int 396 ipw_detach(device_t dev) 397 { 398 struct ipw_softc *sc = device_get_softc(dev); 399 struct ifnet *ifp = sc->sc_ifp; 400 struct ieee80211com *ic = ifp->if_l2com; 401 402 ieee80211_draintask(ic, &sc->sc_init_task); 403 ipw_stop(sc); 404 405 ieee80211_ifdetach(ic); 406 407 callout_drain(&sc->sc_wdtimer); 408 409 ipw_release(sc); 410 411 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 412 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 413 414 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 415 416 if_free(ifp); 417 418 if (sc->sc_firmware != NULL) { 419 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 420 sc->sc_firmware = NULL; 421 } 422 423 mtx_destroy(&sc->sc_mtx); 424 425 return 0; 426 } 427 428 static struct ieee80211vap * 429 ipw_vap_create(struct ieee80211com *ic, 430 const char name[IFNAMSIZ], int unit, int opmode, int flags, 431 const uint8_t bssid[IEEE80211_ADDR_LEN], 432 const uint8_t mac[IEEE80211_ADDR_LEN]) 433 { 434 struct ifnet *ifp = ic->ic_ifp; 435 struct ipw_softc *sc = ifp->if_softc; 436 struct ipw_vap *ivp; 437 struct ieee80211vap *vap; 438 const struct firmware *fp; 439 const struct ipw_firmware_hdr *hdr; 440 const char *imagename; 441 442 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 443 return NULL; 444 445 switch (opmode) { 446 case IEEE80211_M_STA: 447 imagename = "ipw_bss"; 448 break; 449 case IEEE80211_M_IBSS: 450 imagename = "ipw_ibss"; 451 break; 452 case IEEE80211_M_MONITOR: 453 imagename = "ipw_monitor"; 454 break; 455 default: 456 return NULL; 457 } 458 459 /* 460 * Load firmware image using the firmware(9) subsystem. Doing 461 * this unlocked is ok since we're single-threaded by the 462 * 802.11 layer. 463 */ 464 if (sc->sc_firmware == NULL || 465 strcmp(sc->sc_firmware->name, imagename) != 0) { 466 if (sc->sc_firmware != NULL) 467 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 468 sc->sc_firmware = firmware_get(imagename); 469 } 470 if (sc->sc_firmware == NULL) { 471 device_printf(sc->sc_dev, 472 "could not load firmware image '%s'\n", imagename); 473 return NULL; 474 } 475 fp = sc->sc_firmware; 476 if (fp->datasize < sizeof *hdr) { 477 device_printf(sc->sc_dev, 478 "firmware image too short %zu\n", fp->datasize); 479 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 480 sc->sc_firmware = NULL; 481 return NULL; 482 } 483 hdr = (const struct ipw_firmware_hdr *)fp->data; 484 if (fp->datasize < sizeof *hdr + le32toh(hdr->mainsz) + 485 le32toh(hdr->ucodesz)) { 486 device_printf(sc->sc_dev, 487 "firmware image too short %zu\n", fp->datasize); 488 firmware_put(sc->sc_firmware, FIRMWARE_UNLOAD); 489 sc->sc_firmware = NULL; 490 return NULL; 491 } 492 493 ivp = (struct ipw_vap *) malloc(sizeof(struct ipw_vap), 494 M_80211_VAP, M_NOWAIT | M_ZERO); 495 if (ivp == NULL) 496 return NULL; 497 vap = &ivp->vap; 498 499 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 500 /* override with driver methods */ 501 ivp->newstate = vap->iv_newstate; 502 vap->iv_newstate = ipw_newstate; 503 504 /* complete setup */ 505 ieee80211_vap_attach(vap, ieee80211_media_change, ipw_media_status); 506 ic->ic_opmode = opmode; 507 return vap; 508 } 509 510 static void 511 ipw_vap_delete(struct ieee80211vap *vap) 512 { 513 struct ipw_vap *ivp = IPW_VAP(vap); 514 515 ieee80211_vap_detach(vap); 516 free(ivp, M_80211_VAP); 517 } 518 519 static int 520 ipw_dma_alloc(struct ipw_softc *sc) 521 { 522 struct ipw_soft_bd *sbd; 523 struct ipw_soft_hdr *shdr; 524 struct ipw_soft_buf *sbuf; 525 bus_addr_t physaddr; 526 int error, i; 527 528 /* 529 * Allocate parent DMA tag for subsequent allocations. 530 */ 531 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 532 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 533 BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED, 534 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat); 535 if (error != 0) { 536 device_printf(sc->sc_dev, "could not create parent DMA tag\n"); 537 goto fail; 538 } 539 540 /* 541 * Allocate and map tx ring. 542 */ 543 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT, 544 BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL, 545 NULL, &sc->tbd_dmat); 546 if (error != 0) { 547 device_printf(sc->sc_dev, "could not create tx ring DMA tag\n"); 548 goto fail; 549 } 550 551 error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list, 552 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map); 553 if (error != 0) { 554 device_printf(sc->sc_dev, 555 "could not allocate tx ring DMA memory\n"); 556 goto fail; 557 } 558 559 error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list, 560 IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0); 561 if (error != 0) { 562 device_printf(sc->sc_dev, "could not map tx ring DMA memory\n"); 563 goto fail; 564 } 565 566 /* 567 * Allocate and map rx ring. 568 */ 569 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT, 570 BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL, 571 NULL, &sc->rbd_dmat); 572 if (error != 0) { 573 device_printf(sc->sc_dev, "could not create rx ring DMA tag\n"); 574 goto fail; 575 } 576 577 error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list, 578 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map); 579 if (error != 0) { 580 device_printf(sc->sc_dev, 581 "could not allocate rx ring DMA memory\n"); 582 goto fail; 583 } 584 585 error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list, 586 IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0); 587 if (error != 0) { 588 device_printf(sc->sc_dev, "could not map rx ring DMA memory\n"); 589 goto fail; 590 } 591 592 /* 593 * Allocate and map status ring. 594 */ 595 error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT, 596 BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0, 597 NULL, NULL, &sc->status_dmat); 598 if (error != 0) { 599 device_printf(sc->sc_dev, 600 "could not create status ring DMA tag\n"); 601 goto fail; 602 } 603 604 error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list, 605 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map); 606 if (error != 0) { 607 device_printf(sc->sc_dev, 608 "could not allocate status ring DMA memory\n"); 609 goto fail; 610 } 611 612 error = bus_dmamap_load(sc->status_dmat, sc->status_map, 613 sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys, 614 0); 615 if (error != 0) { 616 device_printf(sc->sc_dev, 617 "could not map status ring DMA memory\n"); 618 goto fail; 619 } 620 621 /* 622 * Allocate command DMA map. 623 */ 624 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT, 625 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1, 626 sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat); 627 if (error != 0) { 628 device_printf(sc->sc_dev, "could not create command DMA tag\n"); 629 goto fail; 630 } 631 632 error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map); 633 if (error != 0) { 634 device_printf(sc->sc_dev, 635 "could not create command DMA map\n"); 636 goto fail; 637 } 638 639 /* 640 * Allocate headers DMA maps. 641 */ 642 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT, 643 BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1, 644 sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat); 645 if (error != 0) { 646 device_printf(sc->sc_dev, "could not create header DMA tag\n"); 647 goto fail; 648 } 649 650 SLIST_INIT(&sc->free_shdr); 651 for (i = 0; i < IPW_NDATA; i++) { 652 shdr = &sc->shdr_list[i]; 653 error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map); 654 if (error != 0) { 655 device_printf(sc->sc_dev, 656 "could not create header DMA map\n"); 657 goto fail; 658 } 659 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 660 } 661 662 /* 663 * Allocate tx buffers DMA maps. 664 */ 665 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT, 666 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0, 667 NULL, NULL, &sc->txbuf_dmat); 668 if (error != 0) { 669 device_printf(sc->sc_dev, "could not create tx DMA tag\n"); 670 goto fail; 671 } 672 673 SLIST_INIT(&sc->free_sbuf); 674 for (i = 0; i < IPW_NDATA; i++) { 675 sbuf = &sc->tx_sbuf_list[i]; 676 error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map); 677 if (error != 0) { 678 device_printf(sc->sc_dev, 679 "could not create tx DMA map\n"); 680 goto fail; 681 } 682 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 683 } 684 685 /* 686 * Initialize tx ring. 687 */ 688 for (i = 0; i < IPW_NTBD; i++) { 689 sbd = &sc->stbd_list[i]; 690 sbd->bd = &sc->tbd_list[i]; 691 sbd->type = IPW_SBD_TYPE_NOASSOC; 692 } 693 694 /* 695 * Pre-allocate rx buffers and DMA maps. 696 */ 697 error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT, 698 BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL, 699 NULL, &sc->rxbuf_dmat); 700 if (error != 0) { 701 device_printf(sc->sc_dev, "could not create rx DMA tag\n"); 702 goto fail; 703 } 704 705 for (i = 0; i < IPW_NRBD; i++) { 706 sbd = &sc->srbd_list[i]; 707 sbuf = &sc->rx_sbuf_list[i]; 708 sbd->bd = &sc->rbd_list[i]; 709 710 sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 711 if (sbuf->m == NULL) { 712 device_printf(sc->sc_dev, 713 "could not allocate rx mbuf\n"); 714 error = ENOMEM; 715 goto fail; 716 } 717 718 error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map); 719 if (error != 0) { 720 device_printf(sc->sc_dev, 721 "could not create rx DMA map\n"); 722 goto fail; 723 } 724 725 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, 726 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr, 727 &physaddr, 0); 728 if (error != 0) { 729 device_printf(sc->sc_dev, 730 "could not map rx DMA memory\n"); 731 goto fail; 732 } 733 734 sbd->type = IPW_SBD_TYPE_DATA; 735 sbd->priv = sbuf; 736 sbd->bd->physaddr = htole32(physaddr); 737 sbd->bd->len = htole32(MCLBYTES); 738 } 739 740 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 741 742 return 0; 743 744 fail: ipw_release(sc); 745 return error; 746 } 747 748 static void 749 ipw_release(struct ipw_softc *sc) 750 { 751 struct ipw_soft_buf *sbuf; 752 int i; 753 754 if (sc->parent_dmat != NULL) { 755 bus_dma_tag_destroy(sc->parent_dmat); 756 } 757 758 if (sc->tbd_dmat != NULL) { 759 if (sc->stbd_list != NULL) { 760 bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map); 761 bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, 762 sc->tbd_map); 763 } 764 bus_dma_tag_destroy(sc->tbd_dmat); 765 } 766 767 if (sc->rbd_dmat != NULL) { 768 if (sc->rbd_list != NULL) { 769 bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map); 770 bus_dmamem_free(sc->rbd_dmat, sc->rbd_list, 771 sc->rbd_map); 772 } 773 bus_dma_tag_destroy(sc->rbd_dmat); 774 } 775 776 if (sc->status_dmat != NULL) { 777 if (sc->status_list != NULL) { 778 bus_dmamap_unload(sc->status_dmat, sc->status_map); 779 bus_dmamem_free(sc->status_dmat, sc->status_list, 780 sc->status_map); 781 } 782 bus_dma_tag_destroy(sc->status_dmat); 783 } 784 785 for (i = 0; i < IPW_NTBD; i++) 786 ipw_release_sbd(sc, &sc->stbd_list[i]); 787 788 if (sc->cmd_dmat != NULL) { 789 bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map); 790 bus_dma_tag_destroy(sc->cmd_dmat); 791 } 792 793 if (sc->hdr_dmat != NULL) { 794 for (i = 0; i < IPW_NDATA; i++) 795 bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map); 796 bus_dma_tag_destroy(sc->hdr_dmat); 797 } 798 799 if (sc->txbuf_dmat != NULL) { 800 for (i = 0; i < IPW_NDATA; i++) { 801 bus_dmamap_destroy(sc->txbuf_dmat, 802 sc->tx_sbuf_list[i].map); 803 } 804 bus_dma_tag_destroy(sc->txbuf_dmat); 805 } 806 807 if (sc->rxbuf_dmat != NULL) { 808 for (i = 0; i < IPW_NRBD; i++) { 809 sbuf = &sc->rx_sbuf_list[i]; 810 if (sbuf->m != NULL) { 811 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, 812 BUS_DMASYNC_POSTREAD); 813 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 814 m_freem(sbuf->m); 815 } 816 bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map); 817 } 818 bus_dma_tag_destroy(sc->rxbuf_dmat); 819 } 820 } 821 822 static int 823 ipw_shutdown(device_t dev) 824 { 825 struct ipw_softc *sc = device_get_softc(dev); 826 827 ipw_stop(sc); 828 829 return 0; 830 } 831 832 static int 833 ipw_suspend(device_t dev) 834 { 835 struct ipw_softc *sc = device_get_softc(dev); 836 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 837 838 ieee80211_suspend_all(ic); 839 return 0; 840 } 841 842 static int 843 ipw_resume(device_t dev) 844 { 845 struct ipw_softc *sc = device_get_softc(dev); 846 struct ieee80211com *ic = sc->sc_ifp->if_l2com; 847 848 pci_write_config(dev, 0x41, 0, 1); 849 850 ieee80211_resume_all(ic); 851 return 0; 852 } 853 854 static int 855 ipw_cvtrate(int ipwrate) 856 { 857 switch (ipwrate) { 858 case IPW_RATE_DS1: return 2; 859 case IPW_RATE_DS2: return 4; 860 case IPW_RATE_DS5: return 11; 861 case IPW_RATE_DS11: return 22; 862 } 863 return 0; 864 } 865 866 /* 867 * The firmware automatically adapts the transmit speed. We report its current 868 * value here. 869 */ 870 static void 871 ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr) 872 { 873 struct ieee80211vap *vap = ifp->if_softc; 874 struct ieee80211com *ic = vap->iv_ic; 875 struct ipw_softc *sc = ic->ic_ifp->if_softc; 876 877 /* read current transmission rate from adapter */ 878 vap->iv_bss->ni_txrate = ipw_cvtrate( 879 ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf); 880 ieee80211_media_status(ifp, imr); 881 } 882 883 static int 884 ipw_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 885 { 886 struct ipw_vap *ivp = IPW_VAP(vap); 887 struct ieee80211com *ic = vap->iv_ic; 888 struct ifnet *ifp = ic->ic_ifp; 889 struct ipw_softc *sc = ifp->if_softc; 890 enum ieee80211_state ostate; 891 892 DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, 893 ieee80211_state_name[vap->iv_state], 894 ieee80211_state_name[nstate], sc->flags)); 895 896 ostate = vap->iv_state; 897 IEEE80211_UNLOCK(ic); 898 899 switch (nstate) { 900 case IEEE80211_S_RUN: 901 if (ic->ic_opmode == IEEE80211_M_IBSS) { 902 /* 903 * XXX when joining an ibss network we are called 904 * with a SCAN -> RUN transition on scan complete. 905 * Use that to call ipw_assoc. On completing the 906 * join we are then called again with an AUTH -> RUN 907 * transition and we want to do nothing. This is 908 * all totally bogus and needs to be redone. 909 */ 910 if (ostate == IEEE80211_S_SCAN) 911 ipw_assoc(ic, vap); 912 } 913 break; 914 915 case IEEE80211_S_INIT: 916 if (sc->flags & IPW_FLAG_ASSOCIATED) 917 ipw_disassoc(ic, vap); 918 break; 919 920 case IEEE80211_S_AUTH: 921 /* 922 * Move to ASSOC state after the ipw_assoc() call. Firmware 923 * takes care of authentication, after the call we'll receive 924 * only an assoc response which would otherwise be discared 925 * if we are still in AUTH state. 926 */ 927 nstate = IEEE80211_S_ASSOC; 928 ipw_assoc(ic, vap); 929 break; 930 931 case IEEE80211_S_ASSOC: 932 /* 933 * If we are not transitioning from AUTH then resend the 934 * association request. 935 */ 936 if (ostate != IEEE80211_S_AUTH) 937 ipw_assoc(ic, vap); 938 break; 939 940 default: 941 break; 942 } 943 IEEE80211_LOCK(ic); 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_rx_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 1022 { 1023 #define IEEESTATE(vap) ieee80211_state_name[vap->iv_state] 1024 struct ifnet *ifp = sc->sc_ifp; 1025 struct ieee80211com *ic = ifp->if_l2com; 1026 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1027 uint32_t state; 1028 1029 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1030 1031 state = le32toh(*mtod(sbuf->m, uint32_t *)); 1032 1033 switch (state) { 1034 case IPW_STATE_ASSOCIATED: 1035 DPRINTFN(2, ("Association succeeded (%s flags 0x%x)\n", 1036 IEEESTATE(vap), sc->flags)); 1037 /* XXX suppress state change in case the fw auto-associates */ 1038 if ((sc->flags & IPW_FLAG_ASSOCIATING) == 0) { 1039 DPRINTF(("Unexpected association (%s, flags 0x%x)\n", 1040 IEEESTATE(vap), sc->flags)); 1041 break; 1042 } 1043 sc->flags &= ~IPW_FLAG_ASSOCIATING; 1044 sc->flags |= IPW_FLAG_ASSOCIATED; 1045 break; 1046 1047 case IPW_STATE_SCANNING: 1048 DPRINTFN(3, ("Scanning (%s flags 0x%x)\n", 1049 IEEESTATE(vap), sc->flags)); 1050 /* 1051 * NB: Check driver state for association on assoc 1052 * loss as the firmware will immediately start to 1053 * scan and we would treat it as a beacon miss if 1054 * we checked the 802.11 layer state. 1055 */ 1056 if (sc->flags & IPW_FLAG_ASSOCIATED) { 1057 IPW_UNLOCK(sc); 1058 /* XXX probably need to issue disassoc to fw */ 1059 ieee80211_beacon_miss(ic); 1060 IPW_LOCK(sc); 1061 } 1062 break; 1063 1064 case IPW_STATE_SCAN_COMPLETE: 1065 /* 1066 * XXX For some reason scan requests generate scan 1067 * started + scan done events before any traffic is 1068 * received (e.g. probe response frames). We work 1069 * around this by marking the HACK flag and skipping 1070 * the first scan complete event. 1071 */ 1072 DPRINTFN(3, ("Scan complete (%s flags 0x%x)\n", 1073 IEEESTATE(vap), sc->flags)); 1074 if (sc->flags & IPW_FLAG_HACK) { 1075 sc->flags &= ~IPW_FLAG_HACK; 1076 break; 1077 } 1078 if (sc->flags & IPW_FLAG_SCANNING) { 1079 IPW_UNLOCK(sc); 1080 ieee80211_scan_done(vap); 1081 IPW_LOCK(sc); 1082 sc->flags &= ~IPW_FLAG_SCANNING; 1083 sc->sc_scan_timer = 0; 1084 } 1085 break; 1086 1087 case IPW_STATE_ASSOCIATION_LOST: 1088 DPRINTFN(2, ("Association lost (%s flags 0x%x)\n", 1089 IEEESTATE(vap), sc->flags)); 1090 sc->flags &= ~(IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED); 1091 if (vap->iv_state == IEEE80211_S_RUN) { 1092 IPW_UNLOCK(sc); 1093 ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); 1094 IPW_LOCK(sc); 1095 } 1096 break; 1097 1098 case IPW_STATE_DISABLED: 1099 /* XXX? is this right? */ 1100 sc->flags &= ~(IPW_FLAG_HACK | IPW_FLAG_SCANNING | 1101 IPW_FLAG_ASSOCIATING | IPW_FLAG_ASSOCIATED); 1102 DPRINTFN(2, ("Firmware disabled (%s flags 0x%x)\n", 1103 IEEESTATE(vap), sc->flags)); 1104 break; 1105 1106 case IPW_STATE_RADIO_DISABLED: 1107 device_printf(sc->sc_dev, "radio turned off\n"); 1108 ieee80211_notify_radio(ic, 0); 1109 ipw_stop_locked(sc); 1110 /* XXX start polling thread to detect radio on */ 1111 break; 1112 1113 default: 1114 DPRINTFN(2, ("%s: unhandled state %u %s flags 0x%x\n", 1115 __func__, state, IEEESTATE(vap), sc->flags)); 1116 break; 1117 } 1118 #undef IEEESTATE 1119 } 1120 1121 /* 1122 * Set driver state for current channel. 1123 */ 1124 static void 1125 ipw_setcurchan(struct ipw_softc *sc, struct ieee80211_channel *chan) 1126 { 1127 struct ifnet *ifp = sc->sc_ifp; 1128 struct ieee80211com *ic = ifp->if_l2com; 1129 1130 ic->ic_curchan = chan; 1131 ieee80211_radiotap_chan_change(ic); 1132 } 1133 1134 /* 1135 * XXX: Hack to set the current channel to the value advertised in beacons or 1136 * probe responses. Only used during AP detection. 1137 */ 1138 static void 1139 ipw_fix_channel(struct ipw_softc *sc, struct mbuf *m) 1140 { 1141 struct ifnet *ifp = sc->sc_ifp; 1142 struct ieee80211com *ic = ifp->if_l2com; 1143 struct ieee80211_channel *c; 1144 struct ieee80211_frame *wh; 1145 uint8_t subtype; 1146 uint8_t *frm, *efrm; 1147 1148 wh = mtod(m, struct ieee80211_frame *); 1149 1150 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1151 return; 1152 1153 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1154 1155 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1156 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1157 return; 1158 1159 /* XXX use ieee80211_parse_beacon */ 1160 frm = (uint8_t *)(wh + 1); 1161 efrm = mtod(m, uint8_t *) + m->m_len; 1162 1163 frm += 12; /* skip tstamp, bintval and capinfo fields */ 1164 while (frm < efrm) { 1165 if (*frm == IEEE80211_ELEMID_DSPARMS) 1166 #if IEEE80211_CHAN_MAX < 255 1167 if (frm[2] <= IEEE80211_CHAN_MAX) 1168 #endif 1169 { 1170 DPRINTF(("Fixing channel to %d\n", frm[2])); 1171 c = ieee80211_find_channel(ic, 1172 ieee80211_ieee2mhz(frm[2], 0), 1173 IEEE80211_CHAN_B); 1174 if (c == NULL) 1175 c = &ic->ic_channels[0]; 1176 ipw_setcurchan(sc, c); 1177 } 1178 1179 frm += frm[1] + 2; 1180 } 1181 } 1182 1183 static void 1184 ipw_rx_data_intr(struct ipw_softc *sc, struct ipw_status *status, 1185 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf) 1186 { 1187 struct ifnet *ifp = sc->sc_ifp; 1188 struct ieee80211com *ic = ifp->if_l2com; 1189 struct mbuf *mnew, *m; 1190 struct ieee80211_node *ni; 1191 bus_addr_t physaddr; 1192 int error; 1193 int8_t rssi, nf; 1194 1195 DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len), 1196 status->rssi)); 1197 1198 if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) || 1199 le32toh(status->len) > MCLBYTES) 1200 return; 1201 1202 /* 1203 * Try to allocate a new mbuf for this ring element and load it before 1204 * processing the current mbuf. If the ring element cannot be loaded, 1205 * drop the received packet and reuse the old mbuf. In the unlikely 1206 * case that the old mbuf can't be reloaded either, explicitly panic. 1207 */ 1208 mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1209 if (mnew == NULL) { 1210 ifp->if_ierrors++; 1211 return; 1212 } 1213 1214 bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1215 bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 1216 1217 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(mnew, void *), 1218 MCLBYTES, ipw_dma_map_addr, &physaddr, 0); 1219 if (error != 0) { 1220 m_freem(mnew); 1221 1222 /* try to reload the old mbuf */ 1223 error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, 1224 mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr, 1225 &physaddr, 0); 1226 if (error != 0) { 1227 /* very unlikely that it will fail... */ 1228 panic("%s: could not load old rx mbuf", 1229 device_get_name(sc->sc_dev)); 1230 } 1231 ifp->if_ierrors++; 1232 return; 1233 } 1234 1235 /* 1236 * New mbuf successfully loaded, update Rx ring and continue 1237 * processing. 1238 */ 1239 m = sbuf->m; 1240 sbuf->m = mnew; 1241 sbd->bd->physaddr = htole32(physaddr); 1242 1243 /* finalize mbuf */ 1244 m->m_pkthdr.rcvif = ifp; 1245 m->m_pkthdr.len = m->m_len = le32toh(status->len); 1246 1247 rssi = status->rssi + IPW_RSSI_TO_DBM; 1248 nf = -95; 1249 if (ieee80211_radiotap_active(ic)) { 1250 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap; 1251 1252 tap->wr_flags = 0; 1253 tap->wr_antsignal = rssi; 1254 tap->wr_antnoise = nf; 1255 } 1256 1257 if (sc->flags & IPW_FLAG_SCANNING) 1258 ipw_fix_channel(sc, m); 1259 1260 IPW_UNLOCK(sc); 1261 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); 1262 if (ni != NULL) { 1263 (void) ieee80211_input(ni, m, rssi - nf, nf); 1264 ieee80211_free_node(ni); 1265 } else 1266 (void) ieee80211_input_all(ic, m, rssi - nf, nf); 1267 IPW_LOCK(sc); 1268 1269 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1270 } 1271 1272 static void 1273 ipw_rx_intr(struct ipw_softc *sc) 1274 { 1275 struct ipw_status *status; 1276 struct ipw_soft_bd *sbd; 1277 struct ipw_soft_buf *sbuf; 1278 uint32_t r, i; 1279 1280 if (!(sc->flags & IPW_FLAG_FW_INITED)) 1281 return; 1282 1283 r = CSR_READ_4(sc, IPW_CSR_RX_READ); 1284 1285 bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD); 1286 1287 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) { 1288 status = &sc->status_list[i]; 1289 sbd = &sc->srbd_list[i]; 1290 sbuf = sbd->priv; 1291 1292 switch (le16toh(status->code) & 0xf) { 1293 case IPW_STATUS_CODE_COMMAND: 1294 ipw_rx_cmd_intr(sc, sbuf); 1295 break; 1296 1297 case IPW_STATUS_CODE_NEWSTATE: 1298 ipw_rx_newstate_intr(sc, sbuf); 1299 break; 1300 1301 case IPW_STATUS_CODE_DATA_802_3: 1302 case IPW_STATUS_CODE_DATA_802_11: 1303 ipw_rx_data_intr(sc, status, sbd, sbuf); 1304 break; 1305 1306 case IPW_STATUS_CODE_NOTIFICATION: 1307 DPRINTFN(2, ("notification status, len %u flags 0x%x\n", 1308 le32toh(status->len), status->flags)); 1309 /* XXX maybe drive state machine AUTH->ASSOC? */ 1310 break; 1311 1312 default: 1313 device_printf(sc->sc_dev, "unexpected status code %u\n", 1314 le16toh(status->code)); 1315 } 1316 1317 /* firmware was killed, stop processing received frames */ 1318 if (!(sc->flags & IPW_FLAG_FW_INITED)) 1319 return; 1320 1321 sbd->bd->flags = 0; 1322 } 1323 1324 bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1325 1326 /* kick the firmware */ 1327 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1; 1328 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 1329 } 1330 1331 static void 1332 ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd) 1333 { 1334 struct ipw_soft_hdr *shdr; 1335 struct ipw_soft_buf *sbuf; 1336 1337 switch (sbd->type) { 1338 case IPW_SBD_TYPE_COMMAND: 1339 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, 1340 BUS_DMASYNC_POSTWRITE); 1341 bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map); 1342 break; 1343 1344 case IPW_SBD_TYPE_HEADER: 1345 shdr = sbd->priv; 1346 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE); 1347 bus_dmamap_unload(sc->hdr_dmat, shdr->map); 1348 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 1349 break; 1350 1351 case IPW_SBD_TYPE_DATA: 1352 sbuf = sbd->priv; 1353 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, 1354 BUS_DMASYNC_POSTWRITE); 1355 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1356 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 1357 1358 if (sbuf->m->m_flags & M_TXCB) 1359 ieee80211_process_callback(sbuf->ni, sbuf->m, 0/*XXX*/); 1360 m_freem(sbuf->m); 1361 ieee80211_free_node(sbuf->ni); 1362 1363 sc->sc_tx_timer = 0; 1364 break; 1365 } 1366 1367 sbd->type = IPW_SBD_TYPE_NOASSOC; 1368 } 1369 1370 static void 1371 ipw_tx_intr(struct ipw_softc *sc) 1372 { 1373 struct ifnet *ifp = sc->sc_ifp; 1374 struct ipw_soft_bd *sbd; 1375 uint32_t r, i; 1376 1377 if (!(sc->flags & IPW_FLAG_FW_INITED)) 1378 return; 1379 1380 r = CSR_READ_4(sc, IPW_CSR_TX_READ); 1381 1382 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) { 1383 sbd = &sc->stbd_list[i]; 1384 1385 if (sbd->type == IPW_SBD_TYPE_DATA) 1386 ifp->if_opackets++; 1387 1388 ipw_release_sbd(sc, sbd); 1389 sc->txfree++; 1390 } 1391 1392 /* remember what the firmware has processed */ 1393 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1; 1394 1395 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1396 ipw_start_locked(ifp); 1397 } 1398 1399 static void 1400 ipw_fatal_error_intr(struct ipw_softc *sc) 1401 { 1402 struct ifnet *ifp = sc->sc_ifp; 1403 struct ieee80211com *ic = ifp->if_l2com; 1404 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1405 1406 device_printf(sc->sc_dev, "firmware error\n"); 1407 if (vap != NULL) { 1408 IPW_UNLOCK(sc); 1409 ieee80211_cancel_scan(vap); 1410 IPW_LOCK(sc); 1411 } 1412 ieee80211_runtask(ic, &sc->sc_init_task); 1413 } 1414 1415 static void 1416 ipw_intr(void *arg) 1417 { 1418 struct ipw_softc *sc = arg; 1419 uint32_t r; 1420 1421 IPW_LOCK(sc); 1422 1423 r = CSR_READ_4(sc, IPW_CSR_INTR); 1424 if (r == 0 || r == 0xffffffff) 1425 goto done; 1426 1427 /* disable interrupts */ 1428 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1429 1430 /* acknowledge all interrupts */ 1431 CSR_WRITE_4(sc, IPW_CSR_INTR, r); 1432 1433 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) { 1434 ipw_fatal_error_intr(sc); 1435 goto done; 1436 } 1437 1438 if (r & IPW_INTR_FW_INIT_DONE) 1439 wakeup(sc); 1440 1441 if (r & IPW_INTR_RX_TRANSFER) 1442 ipw_rx_intr(sc); 1443 1444 if (r & IPW_INTR_TX_TRANSFER) 1445 ipw_tx_intr(sc); 1446 1447 /* re-enable interrupts */ 1448 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1449 done: 1450 IPW_UNLOCK(sc); 1451 } 1452 1453 static void 1454 ipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1455 { 1456 if (error != 0) 1457 return; 1458 1459 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 1460 1461 *(bus_addr_t *)arg = segs[0].ds_addr; 1462 } 1463 1464 static const char * 1465 ipw_cmdname(int cmd) 1466 { 1467 #define N(a) (sizeof(a) / sizeof(a[0])) 1468 static const struct { 1469 int cmd; 1470 const char *name; 1471 } cmds[] = { 1472 { IPW_CMD_ADD_MULTICAST, "ADD_MULTICAST" }, 1473 { IPW_CMD_BROADCAST_SCAN, "BROADCAST_SCAN" }, 1474 { IPW_CMD_DISABLE, "DISABLE" }, 1475 { IPW_CMD_DISABLE_PHY, "DISABLE_PHY" }, 1476 { IPW_CMD_ENABLE, "ENABLE" }, 1477 { IPW_CMD_PREPARE_POWER_DOWN, "PREPARE_POWER_DOWN" }, 1478 { IPW_CMD_SET_BASIC_TX_RATES, "SET_BASIC_TX_RATES" }, 1479 { IPW_CMD_SET_BEACON_INTERVAL, "SET_BEACON_INTERVAL" }, 1480 { IPW_CMD_SET_CHANNEL, "SET_CHANNEL" }, 1481 { IPW_CMD_SET_CONFIGURATION, "SET_CONFIGURATION" }, 1482 { IPW_CMD_SET_DESIRED_BSSID, "SET_DESIRED_BSSID" }, 1483 { IPW_CMD_SET_ESSID, "SET_ESSID" }, 1484 { IPW_CMD_SET_FRAG_THRESHOLD, "SET_FRAG_THRESHOLD" }, 1485 { IPW_CMD_SET_MAC_ADDRESS, "SET_MAC_ADDRESS" }, 1486 { IPW_CMD_SET_MANDATORY_BSSID, "SET_MANDATORY_BSSID" }, 1487 { IPW_CMD_SET_MODE, "SET_MODE" }, 1488 { IPW_CMD_SET_MSDU_TX_RATES, "SET_MSDU_TX_RATES" }, 1489 { IPW_CMD_SET_POWER_MODE, "SET_POWER_MODE" }, 1490 { IPW_CMD_SET_RTS_THRESHOLD, "SET_RTS_THRESHOLD" }, 1491 { IPW_CMD_SET_SCAN_OPTIONS, "SET_SCAN_OPTIONS" }, 1492 { IPW_CMD_SET_SECURITY_INFO, "SET_SECURITY_INFO" }, 1493 { IPW_CMD_SET_TX_POWER_INDEX, "SET_TX_POWER_INDEX" }, 1494 { IPW_CMD_SET_TX_RATES, "SET_TX_RATES" }, 1495 { IPW_CMD_SET_WEP_FLAGS, "SET_WEP_FLAGS" }, 1496 { IPW_CMD_SET_WEP_KEY, "SET_WEP_KEY" }, 1497 { IPW_CMD_SET_WEP_KEY_INDEX, "SET_WEP_KEY_INDEX" }, 1498 { IPW_CMD_SET_WPA_IE, "SET_WPA_IE" }, 1499 1500 }; 1501 static char buf[12]; 1502 int i; 1503 1504 for (i = 0; i < N(cmds); i++) 1505 if (cmds[i].cmd == cmd) 1506 return cmds[i].name; 1507 snprintf(buf, sizeof(buf), "%u", cmd); 1508 return buf; 1509 #undef N 1510 } 1511 1512 /* 1513 * Send a command to the firmware and wait for the acknowledgement. 1514 */ 1515 static int 1516 ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len) 1517 { 1518 struct ipw_soft_bd *sbd; 1519 bus_addr_t physaddr; 1520 int error; 1521 1522 IPW_LOCK_ASSERT(sc); 1523 1524 if (sc->flags & IPW_FLAG_BUSY) { 1525 device_printf(sc->sc_dev, "%s: %s not sent, busy\n", 1526 __func__, ipw_cmdname(type)); 1527 return EAGAIN; 1528 } 1529 sc->flags |= IPW_FLAG_BUSY; 1530 1531 sbd = &sc->stbd_list[sc->txcur]; 1532 1533 error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd, 1534 sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0); 1535 if (error != 0) { 1536 device_printf(sc->sc_dev, "could not map command DMA memory\n"); 1537 sc->flags &= ~IPW_FLAG_BUSY; 1538 return error; 1539 } 1540 1541 sc->cmd.type = htole32(type); 1542 sc->cmd.subtype = 0; 1543 sc->cmd.len = htole32(len); 1544 sc->cmd.seq = 0; 1545 memcpy(sc->cmd.data, data, len); 1546 1547 sbd->type = IPW_SBD_TYPE_COMMAND; 1548 sbd->bd->physaddr = htole32(physaddr); 1549 sbd->bd->len = htole32(sizeof (struct ipw_cmd)); 1550 sbd->bd->nfrag = 1; 1551 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND | 1552 IPW_BD_FLAG_TX_LAST_FRAGMENT; 1553 1554 bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE); 1555 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1556 1557 #ifdef IPW_DEBUG 1558 if (ipw_debug >= 4) { 1559 printf("sending %s(%u, %u, %u, %u)", ipw_cmdname(type), type, 1560 0, 0, len); 1561 /* Print the data buffer in the higher debug level */ 1562 if (ipw_debug >= 9 && len > 0) { 1563 printf(" data: 0x"); 1564 for (int i = 1; i <= len; i++) 1565 printf("%1D", (u_char *)data + len - i, ""); 1566 } 1567 printf("\n"); 1568 } 1569 #endif 1570 1571 /* kick firmware */ 1572 sc->txfree--; 1573 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1574 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1575 1576 /* wait at most one second for command to complete */ 1577 error = msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz); 1578 if (error != 0) { 1579 device_printf(sc->sc_dev, "%s: %s failed, timeout (error %u)\n", 1580 __func__, ipw_cmdname(type), error); 1581 sc->flags &= ~IPW_FLAG_BUSY; 1582 return (error); 1583 } 1584 return (0); 1585 } 1586 1587 static int 1588 ipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni) 1589 { 1590 struct ipw_softc *sc = ifp->if_softc; 1591 struct ieee80211com *ic = ifp->if_l2com; 1592 struct ieee80211vap *vap = ni->ni_vap; 1593 struct ieee80211_frame *wh; 1594 struct ipw_soft_bd *sbd; 1595 struct ipw_soft_hdr *shdr; 1596 struct ipw_soft_buf *sbuf; 1597 struct ieee80211_key *k; 1598 struct mbuf *mnew; 1599 bus_dma_segment_t segs[IPW_MAX_NSEG]; 1600 bus_addr_t physaddr; 1601 int nsegs, error, i; 1602 1603 wh = mtod(m0, struct ieee80211_frame *); 1604 1605 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1606 k = ieee80211_crypto_encap(ni, m0); 1607 if (k == NULL) { 1608 m_freem(m0); 1609 return ENOBUFS; 1610 } 1611 /* packet header may have moved, reset our local pointer */ 1612 wh = mtod(m0, struct ieee80211_frame *); 1613 } 1614 1615 if (ieee80211_radiotap_active_vap(vap)) { 1616 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap; 1617 1618 tap->wt_flags = 0; 1619 1620 ieee80211_radiotap_tx(vap, m0); 1621 } 1622 1623 shdr = SLIST_FIRST(&sc->free_shdr); 1624 sbuf = SLIST_FIRST(&sc->free_sbuf); 1625 KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool")); 1626 1627 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND); 1628 shdr->hdr.subtype = 0; 1629 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0; 1630 shdr->hdr.encrypt = 0; 1631 shdr->hdr.keyidx = 0; 1632 shdr->hdr.keysz = 0; 1633 shdr->hdr.fragmentsz = 0; 1634 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2); 1635 if (ic->ic_opmode == IEEE80211_M_STA) 1636 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3); 1637 else 1638 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1); 1639 1640 /* trim IEEE802.11 header */ 1641 m_adj(m0, sizeof (struct ieee80211_frame)); 1642 1643 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs, 1644 &nsegs, 0); 1645 if (error != 0 && error != EFBIG) { 1646 device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1647 error); 1648 m_freem(m0); 1649 return error; 1650 } 1651 if (error != 0) { 1652 mnew = m_defrag(m0, M_DONTWAIT); 1653 if (mnew == NULL) { 1654 device_printf(sc->sc_dev, 1655 "could not defragment mbuf\n"); 1656 m_freem(m0); 1657 return ENOBUFS; 1658 } 1659 m0 = mnew; 1660 1661 error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, 1662 segs, &nsegs, 0); 1663 if (error != 0) { 1664 device_printf(sc->sc_dev, 1665 "could not map mbuf (error %d)\n", error); 1666 m_freem(m0); 1667 return error; 1668 } 1669 } 1670 1671 error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr, 1672 sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0); 1673 if (error != 0) { 1674 device_printf(sc->sc_dev, "could not map header DMA memory\n"); 1675 bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1676 m_freem(m0); 1677 return error; 1678 } 1679 1680 SLIST_REMOVE_HEAD(&sc->free_sbuf, next); 1681 SLIST_REMOVE_HEAD(&sc->free_shdr, next); 1682 1683 sbd = &sc->stbd_list[sc->txcur]; 1684 sbd->type = IPW_SBD_TYPE_HEADER; 1685 sbd->priv = shdr; 1686 sbd->bd->physaddr = htole32(physaddr); 1687 sbd->bd->len = htole32(sizeof (struct ipw_hdr)); 1688 sbd->bd->nfrag = 1 + nsegs; 1689 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 | 1690 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1691 1692 DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n", 1693 shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted, 1694 shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr, 1695 ":")); 1696 1697 sc->txfree--; 1698 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1699 1700 sbuf->m = m0; 1701 sbuf->ni = ni; 1702 1703 for (i = 0; i < nsegs; i++) { 1704 sbd = &sc->stbd_list[sc->txcur]; 1705 1706 sbd->bd->physaddr = htole32(segs[i].ds_addr); 1707 sbd->bd->len = htole32(segs[i].ds_len); 1708 sbd->bd->nfrag = 0; 1709 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3; 1710 if (i == nsegs - 1) { 1711 sbd->type = IPW_SBD_TYPE_DATA; 1712 sbd->priv = sbuf; 1713 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT; 1714 } else { 1715 sbd->type = IPW_SBD_TYPE_NOASSOC; 1716 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1717 } 1718 1719 DPRINTFN(5, ("sending fragment (%d)\n", i)); 1720 1721 sc->txfree--; 1722 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1723 } 1724 1725 bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE); 1726 bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE); 1727 bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1728 1729 /* kick firmware */ 1730 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1731 1732 return 0; 1733 } 1734 1735 static int 1736 ipw_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1737 const struct ieee80211_bpf_params *params) 1738 { 1739 /* no support; just discard */ 1740 m_freem(m); 1741 ieee80211_free_node(ni); 1742 return 0; 1743 } 1744 1745 static void 1746 ipw_start(struct ifnet *ifp) 1747 { 1748 struct ipw_softc *sc = ifp->if_softc; 1749 1750 IPW_LOCK(sc); 1751 ipw_start_locked(ifp); 1752 IPW_UNLOCK(sc); 1753 } 1754 1755 static void 1756 ipw_start_locked(struct ifnet *ifp) 1757 { 1758 struct ipw_softc *sc = ifp->if_softc; 1759 struct ieee80211_node *ni; 1760 struct mbuf *m; 1761 1762 IPW_LOCK_ASSERT(sc); 1763 1764 for (;;) { 1765 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1766 if (m == NULL) 1767 break; 1768 if (sc->txfree < 1 + IPW_MAX_NSEG) { 1769 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1770 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1771 break; 1772 } 1773 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1774 if (ipw_tx_start(ifp, m, ni) != 0) { 1775 ieee80211_free_node(ni); 1776 ifp->if_oerrors++; 1777 break; 1778 } 1779 /* start watchdog timer */ 1780 sc->sc_tx_timer = 5; 1781 } 1782 } 1783 1784 static void 1785 ipw_watchdog(void *arg) 1786 { 1787 struct ipw_softc *sc = arg; 1788 struct ifnet *ifp = sc->sc_ifp; 1789 struct ieee80211com *ic = ifp->if_l2com; 1790 1791 IPW_LOCK_ASSERT(sc); 1792 1793 if (sc->sc_tx_timer > 0) { 1794 if (--sc->sc_tx_timer == 0) { 1795 if_printf(ifp, "device timeout\n"); 1796 ifp->if_oerrors++; 1797 taskqueue_enqueue(taskqueue_swi, &sc->sc_init_task); 1798 } 1799 } 1800 if (sc->sc_scan_timer > 0) { 1801 if (--sc->sc_scan_timer == 0) { 1802 DPRINTFN(3, ("Scan timeout\n")); 1803 /* End the scan */ 1804 if (sc->flags & IPW_FLAG_SCANNING) { 1805 IPW_UNLOCK(sc); 1806 ieee80211_scan_done(TAILQ_FIRST(&ic->ic_vaps)); 1807 IPW_LOCK(sc); 1808 sc->flags &= ~IPW_FLAG_SCANNING; 1809 } 1810 } 1811 } 1812 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1813 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc); 1814 } 1815 1816 static int 1817 ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1818 { 1819 struct ipw_softc *sc = ifp->if_softc; 1820 struct ieee80211com *ic = ifp->if_l2com; 1821 struct ifreq *ifr = (struct ifreq *) data; 1822 int error = 0, startall = 0; 1823 1824 switch (cmd) { 1825 case SIOCSIFFLAGS: 1826 IPW_LOCK(sc); 1827 if (ifp->if_flags & IFF_UP) { 1828 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1829 ipw_init_locked(sc); 1830 startall = 1; 1831 } 1832 } else { 1833 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1834 ipw_stop_locked(sc); 1835 } 1836 IPW_UNLOCK(sc); 1837 if (startall) 1838 ieee80211_start_all(ic); 1839 break; 1840 case SIOCGIFMEDIA: 1841 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1842 break; 1843 case SIOCGIFADDR: 1844 error = ether_ioctl(ifp, cmd, data); 1845 break; 1846 default: 1847 error = EINVAL; 1848 break; 1849 } 1850 return error; 1851 } 1852 1853 static void 1854 ipw_stop_master(struct ipw_softc *sc) 1855 { 1856 uint32_t tmp; 1857 int ntries; 1858 1859 /* disable interrupts */ 1860 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1861 1862 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER); 1863 for (ntries = 0; ntries < 50; ntries++) { 1864 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED) 1865 break; 1866 DELAY(10); 1867 } 1868 if (ntries == 50) 1869 device_printf(sc->sc_dev, "timeout waiting for master\n"); 1870 1871 tmp = CSR_READ_4(sc, IPW_CSR_RST); 1872 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET); 1873 1874 /* Clear all flags except the following */ 1875 sc->flags &= IPW_FLAG_HAS_RADIO_SWITCH; 1876 } 1877 1878 static int 1879 ipw_reset(struct ipw_softc *sc) 1880 { 1881 uint32_t tmp; 1882 int ntries; 1883 1884 ipw_stop_master(sc); 1885 1886 /* move adapter to D0 state */ 1887 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1888 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT); 1889 1890 /* wait for clock stabilization */ 1891 for (ntries = 0; ntries < 1000; ntries++) { 1892 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY) 1893 break; 1894 DELAY(200); 1895 } 1896 if (ntries == 1000) 1897 return EIO; 1898 1899 tmp = CSR_READ_4(sc, IPW_CSR_RST); 1900 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET); 1901 1902 DELAY(10); 1903 1904 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1905 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT); 1906 1907 return 0; 1908 } 1909 1910 static int 1911 ipw_waitfordisable(struct ipw_softc *sc, int waitfor) 1912 { 1913 int ms = hz < 1000 ? 1 : hz/10; 1914 int i, error; 1915 1916 for (i = 0; i < 100; i++) { 1917 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == waitfor) 1918 return 0; 1919 error = msleep(sc, &sc->sc_mtx, PCATCH, __func__, ms); 1920 if (error == 0 || error != EWOULDBLOCK) 1921 return 0; 1922 } 1923 DPRINTF(("%s: timeout waiting for %s\n", 1924 __func__, waitfor ? "disable" : "enable")); 1925 return ETIMEDOUT; 1926 } 1927 1928 static int 1929 ipw_enable(struct ipw_softc *sc) 1930 { 1931 int error; 1932 1933 if ((sc->flags & IPW_FLAG_ENABLED) == 0) { 1934 DPRINTF(("Enable adapter\n")); 1935 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1936 if (error != 0) 1937 return error; 1938 error = ipw_waitfordisable(sc, 0); 1939 if (error != 0) 1940 return error; 1941 sc->flags |= IPW_FLAG_ENABLED; 1942 } 1943 return 0; 1944 } 1945 1946 static int 1947 ipw_disable(struct ipw_softc *sc) 1948 { 1949 int error; 1950 1951 if (sc->flags & IPW_FLAG_ENABLED) { 1952 DPRINTF(("Disable adapter\n")); 1953 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0); 1954 if (error != 0) 1955 return error; 1956 error = ipw_waitfordisable(sc, 1); 1957 if (error != 0) 1958 return error; 1959 sc->flags &= ~IPW_FLAG_ENABLED; 1960 } 1961 return 0; 1962 } 1963 1964 /* 1965 * Upload the microcode to the device. 1966 */ 1967 static int 1968 ipw_load_ucode(struct ipw_softc *sc, const char *uc, int size) 1969 { 1970 int ntries; 1971 1972 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1973 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1974 1975 MEM_WRITE_2(sc, 0x220000, 0x0703); 1976 MEM_WRITE_2(sc, 0x220000, 0x0707); 1977 1978 MEM_WRITE_1(sc, 0x210014, 0x72); 1979 MEM_WRITE_1(sc, 0x210014, 0x72); 1980 1981 MEM_WRITE_1(sc, 0x210000, 0x40); 1982 MEM_WRITE_1(sc, 0x210000, 0x00); 1983 MEM_WRITE_1(sc, 0x210000, 0x40); 1984 1985 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size); 1986 1987 MEM_WRITE_1(sc, 0x210000, 0x00); 1988 MEM_WRITE_1(sc, 0x210000, 0x00); 1989 MEM_WRITE_1(sc, 0x210000, 0x80); 1990 1991 MEM_WRITE_2(sc, 0x220000, 0x0703); 1992 MEM_WRITE_2(sc, 0x220000, 0x0707); 1993 1994 MEM_WRITE_1(sc, 0x210014, 0x72); 1995 MEM_WRITE_1(sc, 0x210014, 0x72); 1996 1997 MEM_WRITE_1(sc, 0x210000, 0x00); 1998 MEM_WRITE_1(sc, 0x210000, 0x80); 1999 2000 for (ntries = 0; ntries < 10; ntries++) { 2001 if (MEM_READ_1(sc, 0x210000) & 1) 2002 break; 2003 DELAY(10); 2004 } 2005 if (ntries == 10) { 2006 device_printf(sc->sc_dev, 2007 "timeout waiting for ucode to initialize\n"); 2008 return EIO; 2009 } 2010 2011 MEM_WRITE_4(sc, 0x3000e0, 0); 2012 2013 return 0; 2014 } 2015 2016 /* set of macros to handle unaligned little endian data in firmware image */ 2017 #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 2018 #define GETLE16(p) ((p)[0] | (p)[1] << 8) 2019 static int 2020 ipw_load_firmware(struct ipw_softc *sc, const char *fw, int size) 2021 { 2022 const uint8_t *p, *end; 2023 uint32_t tmp, dst; 2024 uint16_t len; 2025 int error; 2026 2027 p = fw; 2028 end = fw + size; 2029 while (p < end) { 2030 dst = GETLE32(p); p += 4; 2031 len = GETLE16(p); p += 2; 2032 2033 ipw_write_mem_1(sc, dst, p, len); 2034 p += len; 2035 } 2036 2037 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK | 2038 IPW_IO_LED_OFF); 2039 2040 /* enable interrupts */ 2041 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 2042 2043 /* kick the firmware */ 2044 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 2045 2046 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 2047 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY); 2048 2049 /* wait at most one second for firmware initialization to complete */ 2050 if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) { 2051 device_printf(sc->sc_dev, "timeout waiting for firmware " 2052 "initialization to complete\n"); 2053 return error; 2054 } 2055 2056 tmp = CSR_READ_4(sc, IPW_CSR_IO); 2057 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK | 2058 IPW_IO_GPIO3_MASK); 2059 2060 return 0; 2061 } 2062 2063 static int 2064 ipw_setwepkeys(struct ipw_softc *sc) 2065 { 2066 struct ifnet *ifp = sc->sc_ifp; 2067 struct ieee80211com *ic = ifp->if_l2com; 2068 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2069 struct ipw_wep_key wepkey; 2070 struct ieee80211_key *wk; 2071 int error, i; 2072 2073 for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2074 wk = &vap->iv_nw_keys[i]; 2075 2076 if (wk->wk_cipher == NULL || 2077 wk->wk_cipher->ic_cipher != IEEE80211_CIPHER_WEP) 2078 continue; 2079 2080 wepkey.idx = i; 2081 wepkey.len = wk->wk_keylen; 2082 memset(wepkey.key, 0, sizeof wepkey.key); 2083 memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2084 DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2085 wepkey.len)); 2086 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey, 2087 sizeof wepkey); 2088 if (error != 0) 2089 return error; 2090 } 2091 return 0; 2092 } 2093 2094 static int 2095 ipw_setwpaie(struct ipw_softc *sc, const void *ie, int ielen) 2096 { 2097 struct ipw_wpa_ie wpaie; 2098 2099 memset(&wpaie, 0, sizeof(wpaie)); 2100 wpaie.len = htole32(ielen); 2101 /* XXX verify length */ 2102 memcpy(&wpaie.ie, ie, ielen); 2103 DPRINTF(("Setting WPA IE\n")); 2104 return ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &wpaie, sizeof(wpaie)); 2105 } 2106 2107 static int 2108 ipw_setbssid(struct ipw_softc *sc, uint8_t *bssid) 2109 { 2110 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 2111 2112 if (bssid == NULL || bcmp(bssid, zerobssid, IEEE80211_ADDR_LEN) == 0) { 2113 DPRINTF(("Setting mandatory BSSID to null\n")); 2114 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0); 2115 } else { 2116 DPRINTF(("Setting mandatory BSSID to %6D\n", bssid, ":")); 2117 return ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, 2118 bssid, IEEE80211_ADDR_LEN); 2119 } 2120 } 2121 2122 static int 2123 ipw_setssid(struct ipw_softc *sc, void *ssid, size_t ssidlen) 2124 { 2125 if (ssidlen == 0) { 2126 /* 2127 * A bug in the firmware breaks the ``don't associate'' 2128 * bit in the scan options command. To compensate for 2129 * this install a bogus ssid when no ssid is specified 2130 * so the firmware won't try to associate. 2131 */ 2132 DPRINTF(("Setting bogus ESSID to WAR firmware bug\n")); 2133 return ipw_cmd(sc, IPW_CMD_SET_ESSID, 2134 "\x18\x19\x20\x21\x22\x23\x24\x25\x26\x27" 2135 "\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31" 2136 "\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b" 2137 "\x3c\x3d", IEEE80211_NWID_LEN); 2138 } else { 2139 #ifdef IPW_DEBUG 2140 if (ipw_debug > 0) { 2141 printf("Setting ESSID to "); 2142 ieee80211_print_essid(ssid, ssidlen); 2143 printf("\n"); 2144 } 2145 #endif 2146 return ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, ssidlen); 2147 } 2148 } 2149 2150 static int 2151 ipw_setscanopts(struct ipw_softc *sc, uint32_t chanmask, uint32_t flags) 2152 { 2153 struct ipw_scan_options opts; 2154 2155 DPRINTF(("Scan options: mask 0x%x flags 0x%x\n", chanmask, flags)); 2156 opts.channels = htole32(chanmask); 2157 opts.flags = htole32(flags); 2158 return ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &opts, sizeof(opts)); 2159 } 2160 2161 static int 2162 ipw_scan(struct ipw_softc *sc) 2163 { 2164 uint32_t params; 2165 int error; 2166 2167 DPRINTF(("%s: flags 0x%x\n", __func__, sc->flags)); 2168 2169 if (sc->flags & IPW_FLAG_SCANNING) 2170 return (EBUSY); 2171 sc->flags |= IPW_FLAG_SCANNING | IPW_FLAG_HACK; 2172 2173 /* NB: IPW_SCAN_DO_NOT_ASSOCIATE does not work (we set it anyway) */ 2174 error = ipw_setscanopts(sc, 0x3fff, IPW_SCAN_DO_NOT_ASSOCIATE); 2175 if (error != 0) 2176 goto done; 2177 2178 /* 2179 * Setup null/bogus ssid so firmware doesn't use any previous 2180 * ssid to try and associate. This is because the ``don't 2181 * associate'' option bit is broken (sigh). 2182 */ 2183 error = ipw_setssid(sc, NULL, 0); 2184 if (error != 0) 2185 goto done; 2186 2187 /* 2188 * NB: the adapter may be disabled on association lost; 2189 * if so just re-enable it to kick off scanning. 2190 */ 2191 DPRINTF(("Starting scan\n")); 2192 sc->sc_scan_timer = 3; 2193 if (sc->flags & IPW_FLAG_ENABLED) { 2194 params = 0; /* XXX? */ 2195 error = ipw_cmd(sc, IPW_CMD_BROADCAST_SCAN, 2196 ¶ms, sizeof(params)); 2197 } else 2198 error = ipw_enable(sc); 2199 done: 2200 if (error != 0) { 2201 DPRINTF(("Scan failed\n")); 2202 sc->flags &= ~(IPW_FLAG_SCANNING | IPW_FLAG_HACK); 2203 } 2204 return (error); 2205 } 2206 2207 static int 2208 ipw_setchannel(struct ipw_softc *sc, struct ieee80211_channel *chan) 2209 { 2210 struct ifnet *ifp = sc->sc_ifp; 2211 struct ieee80211com *ic = ifp->if_l2com; 2212 uint32_t data; 2213 int error; 2214 2215 data = htole32(ieee80211_chan2ieee(ic, chan)); 2216 DPRINTF(("Setting channel to %u\n", le32toh(data))); 2217 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data); 2218 if (error == 0) 2219 ipw_setcurchan(sc, chan); 2220 return error; 2221 } 2222 2223 static void 2224 ipw_assoc(struct ieee80211com *ic, struct ieee80211vap *vap) 2225 { 2226 struct ifnet *ifp = vap->iv_ic->ic_ifp; 2227 struct ipw_softc *sc = ifp->if_softc; 2228 struct ieee80211_node *ni = vap->iv_bss; 2229 struct ipw_security security; 2230 uint32_t data; 2231 int error; 2232 2233 IPW_LOCK(sc); 2234 error = ipw_disable(sc); 2235 if (error != 0) 2236 goto done; 2237 2238 memset(&security, 0, sizeof security); 2239 security.authmode = (ni->ni_authmode == IEEE80211_AUTH_SHARED) ? 2240 IPW_AUTH_SHARED : IPW_AUTH_OPEN; 2241 security.ciphers = htole32(IPW_CIPHER_NONE); 2242 DPRINTF(("Setting authmode to %u\n", security.authmode)); 2243 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFO, &security, 2244 sizeof security); 2245 if (error != 0) 2246 goto done; 2247 2248 data = htole32(vap->iv_rtsthreshold); 2249 DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2250 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 2251 if (error != 0) 2252 goto done; 2253 2254 data = htole32(vap->iv_fragthreshold); 2255 DPRINTF(("Setting frag threshold to %u\n", le32toh(data))); 2256 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 2257 if (error != 0) 2258 goto done; 2259 2260 if (vap->iv_flags & IEEE80211_F_PRIVACY) { 2261 error = ipw_setwepkeys(sc); 2262 if (error != 0) 2263 goto done; 2264 2265 if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) { 2266 data = htole32(vap->iv_def_txkey); 2267 DPRINTF(("Setting wep tx key index to %u\n", 2268 le32toh(data))); 2269 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data, 2270 sizeof data); 2271 if (error != 0) 2272 goto done; 2273 } 2274 } 2275 2276 data = htole32((vap->iv_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0); 2277 DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data))); 2278 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data); 2279 if (error != 0) 2280 goto done; 2281 2282 error = ipw_setssid(sc, ni->ni_essid, ni->ni_esslen); 2283 if (error != 0) 2284 goto done; 2285 2286 error = ipw_setbssid(sc, ni->ni_bssid); 2287 if (error != 0) 2288 goto done; 2289 2290 if (vap->iv_appie_wpa != NULL) { 2291 struct ieee80211_appie *ie = vap->iv_appie_wpa; 2292 error = ipw_setwpaie(sc, ie->ie_data, ie->ie_len); 2293 if (error != 0) 2294 goto done; 2295 } 2296 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2297 error = ipw_setchannel(sc, ni->ni_chan); 2298 if (error != 0) 2299 goto done; 2300 } 2301 2302 /* lock scan to ap's channel and enable associate */ 2303 error = ipw_setscanopts(sc, 2304 1<<(ieee80211_chan2ieee(ic, ni->ni_chan)-1), 0); 2305 if (error != 0) 2306 goto done; 2307 2308 error = ipw_enable(sc); /* finally, enable adapter */ 2309 if (error == 0) 2310 sc->flags |= IPW_FLAG_ASSOCIATING; 2311 done: 2312 IPW_UNLOCK(sc); 2313 } 2314 2315 static void 2316 ipw_disassoc(struct ieee80211com *ic, struct ieee80211vap *vap) 2317 { 2318 struct ifnet *ifp = vap->iv_ic->ic_ifp; 2319 struct ieee80211_node *ni = vap->iv_bss; 2320 struct ipw_softc *sc = ifp->if_softc; 2321 2322 IPW_LOCK(sc); 2323 DPRINTF(("Disassociate from %6D\n", ni->ni_bssid, ":")); 2324 /* 2325 * NB: don't try to do this if ipw_stop_master has 2326 * shutdown the firmware and disabled interrupts. 2327 */ 2328 if (sc->flags & IPW_FLAG_FW_INITED) { 2329 sc->flags &= ~IPW_FLAG_ASSOCIATED; 2330 /* 2331 * NB: firmware currently ignores bssid parameter, but 2332 * supply it in case this changes (follow linux driver). 2333 */ 2334 (void) ipw_cmd(sc, IPW_CMD_DISASSOCIATE, 2335 ni->ni_bssid, IEEE80211_ADDR_LEN); 2336 } 2337 IPW_UNLOCK(sc); 2338 } 2339 2340 /* 2341 * Handler for sc_init_task. This is a simple wrapper around ipw_init(). 2342 * It is called on firmware panics or on watchdog timeouts. 2343 */ 2344 static void 2345 ipw_init_task(void *context, int pending) 2346 { 2347 ipw_init(context); 2348 } 2349 2350 static void 2351 ipw_init(void *priv) 2352 { 2353 struct ipw_softc *sc = priv; 2354 struct ifnet *ifp = sc->sc_ifp; 2355 struct ieee80211com *ic = ifp->if_l2com; 2356 2357 IPW_LOCK(sc); 2358 ipw_init_locked(sc); 2359 IPW_UNLOCK(sc); 2360 2361 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2362 ieee80211_start_all(ic); /* start all vap's */ 2363 } 2364 2365 static void 2366 ipw_init_locked(struct ipw_softc *sc) 2367 { 2368 struct ifnet *ifp = sc->sc_ifp; 2369 struct ieee80211com *ic = ifp->if_l2com; 2370 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2371 const struct firmware *fp; 2372 const struct ipw_firmware_hdr *hdr; 2373 const char *fw; 2374 2375 IPW_LOCK_ASSERT(sc); 2376 2377 DPRINTF(("%s: state %s flags 0x%x\n", __func__, 2378 ieee80211_state_name[vap->iv_state], sc->flags)); 2379 2380 /* 2381 * Avoid re-entrant calls. We need to release the mutex in ipw_init() 2382 * when loading the firmware and we don't want to be called during this 2383 * operation. 2384 */ 2385 if (sc->flags & IPW_FLAG_INIT_LOCKED) 2386 return; 2387 sc->flags |= IPW_FLAG_INIT_LOCKED; 2388 2389 ipw_stop_locked(sc); 2390 2391 if (ipw_reset(sc) != 0) { 2392 device_printf(sc->sc_dev, "could not reset adapter\n"); 2393 goto fail; 2394 } 2395 2396 if (sc->sc_firmware == NULL) { 2397 device_printf(sc->sc_dev, "no firmware\n"); 2398 goto fail; 2399 } 2400 /* NB: consistency already checked on load */ 2401 fp = sc->sc_firmware; 2402 hdr = (const struct ipw_firmware_hdr *)fp->data; 2403 2404 DPRINTF(("Loading firmware image '%s'\n", fp->name)); 2405 fw = (const char *)fp->data + sizeof *hdr + le32toh(hdr->mainsz); 2406 if (ipw_load_ucode(sc, fw, le32toh(hdr->ucodesz)) != 0) { 2407 device_printf(sc->sc_dev, "could not load microcode\n"); 2408 goto fail; 2409 } 2410 2411 ipw_stop_master(sc); 2412 2413 /* 2414 * Setup tx, rx and status rings. 2415 */ 2416 sc->txold = IPW_NTBD - 1; 2417 sc->txcur = 0; 2418 sc->txfree = IPW_NTBD - 2; 2419 sc->rxcur = IPW_NRBD - 1; 2420 2421 CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys); 2422 CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD); 2423 CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0); 2424 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 2425 2426 CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys); 2427 CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD); 2428 CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0); 2429 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 2430 2431 CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys); 2432 2433 fw = (const char *)fp->data + sizeof *hdr; 2434 if (ipw_load_firmware(sc, fw, le32toh(hdr->mainsz)) != 0) { 2435 device_printf(sc->sc_dev, "could not load firmware\n"); 2436 goto fail; 2437 } 2438 2439 sc->flags |= IPW_FLAG_FW_INITED; 2440 2441 /* retrieve information tables base addresses */ 2442 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE); 2443 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE); 2444 2445 ipw_write_table1(sc, IPW_INFO_LOCK, 0); 2446 2447 if (ipw_config(sc) != 0) { 2448 device_printf(sc->sc_dev, "device configuration failed\n"); 2449 goto fail; 2450 } 2451 2452 callout_reset(&sc->sc_wdtimer, hz, ipw_watchdog, sc); 2453 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2454 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2455 2456 sc->flags &=~ IPW_FLAG_INIT_LOCKED; 2457 return; 2458 2459 fail: 2460 ipw_stop_locked(sc); 2461 sc->flags &=~ IPW_FLAG_INIT_LOCKED; 2462 } 2463 2464 static int 2465 ipw_config(struct ipw_softc *sc) 2466 { 2467 struct ifnet *ifp = sc->sc_ifp; 2468 struct ieee80211com *ic = ifp->if_l2com; 2469 struct ipw_configuration config; 2470 uint32_t data; 2471 int error; 2472 2473 error = ipw_disable(sc); 2474 if (error != 0) 2475 return error; 2476 2477 switch (ic->ic_opmode) { 2478 case IEEE80211_M_STA: 2479 case IEEE80211_M_HOSTAP: 2480 case IEEE80211_M_WDS: /* XXX */ 2481 data = htole32(IPW_MODE_BSS); 2482 break; 2483 case IEEE80211_M_IBSS: 2484 case IEEE80211_M_AHDEMO: 2485 data = htole32(IPW_MODE_IBSS); 2486 break; 2487 case IEEE80211_M_MONITOR: 2488 data = htole32(IPW_MODE_MONITOR); 2489 break; 2490 default: 2491 device_printf(sc->sc_dev, "unknown opmode %d\n", ic->ic_opmode); 2492 return EINVAL; 2493 } 2494 DPRINTF(("Setting mode to %u\n", le32toh(data))); 2495 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data); 2496 if (error != 0) 2497 return error; 2498 2499 if (ic->ic_opmode == IEEE80211_M_IBSS || 2500 ic->ic_opmode == IEEE80211_M_MONITOR) { 2501 error = ipw_setchannel(sc, ic->ic_curchan); 2502 if (error != 0) 2503 return error; 2504 } 2505 2506 if (ic->ic_opmode == IEEE80211_M_MONITOR) 2507 return ipw_enable(sc); 2508 2509 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK | 2510 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE); 2511 if (ic->ic_opmode == IEEE80211_M_IBSS) 2512 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START); 2513 if (ifp->if_flags & IFF_PROMISC) 2514 config.flags |= htole32(IPW_CFG_PROMISCUOUS); 2515 config.bss_chan = htole32(0x3fff); /* channels 1-14 */ 2516 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */ 2517 DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags))); 2518 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config); 2519 if (error != 0) 2520 return error; 2521 2522 data = htole32(0xf); /* 1, 2, 5.5, 11 */ 2523 DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data))); 2524 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data); 2525 if (error != 0) 2526 return error; 2527 2528 /* Use the same rate set */ 2529 DPRINTF(("Setting msdu tx rates to 0x%x\n", le32toh(data))); 2530 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data); 2531 if (error != 0) 2532 return error; 2533 2534 /* Use the same rate set */ 2535 DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data))); 2536 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data); 2537 if (error != 0) 2538 return error; 2539 2540 data = htole32(IPW_POWER_MODE_CAM); 2541 DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2542 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data); 2543 if (error != 0) 2544 return error; 2545 2546 if (ic->ic_opmode == IEEE80211_M_IBSS) { 2547 data = htole32(32); /* default value */ 2548 DPRINTF(("Setting tx power index to %u\n", le32toh(data))); 2549 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data, 2550 sizeof data); 2551 if (error != 0) 2552 return error; 2553 } 2554 2555 return 0; 2556 } 2557 2558 static void 2559 ipw_stop(void *priv) 2560 { 2561 struct ipw_softc *sc = priv; 2562 2563 IPW_LOCK(sc); 2564 ipw_stop_locked(sc); 2565 IPW_UNLOCK(sc); 2566 } 2567 2568 static void 2569 ipw_stop_locked(struct ipw_softc *sc) 2570 { 2571 struct ifnet *ifp = sc->sc_ifp; 2572 int i; 2573 2574 IPW_LOCK_ASSERT(sc); 2575 2576 callout_stop(&sc->sc_wdtimer); 2577 ipw_stop_master(sc); 2578 2579 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET); 2580 2581 /* 2582 * Release tx buffers. 2583 */ 2584 for (i = 0; i < IPW_NTBD; i++) 2585 ipw_release_sbd(sc, &sc->stbd_list[i]); 2586 2587 sc->sc_tx_timer = 0; 2588 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2589 } 2590 2591 static int 2592 ipw_sysctl_stats(SYSCTL_HANDLER_ARGS) 2593 { 2594 struct ipw_softc *sc = arg1; 2595 uint32_t i, size, buf[256]; 2596 2597 memset(buf, 0, sizeof buf); 2598 2599 if (!(sc->flags & IPW_FLAG_FW_INITED)) 2600 return SYSCTL_OUT(req, buf, sizeof buf); 2601 2602 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base); 2603 2604 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256); 2605 for (i = 1; i < size; i++) 2606 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA)); 2607 2608 return SYSCTL_OUT(req, buf, size); 2609 } 2610 2611 static int 2612 ipw_sysctl_radio(SYSCTL_HANDLER_ARGS) 2613 { 2614 struct ipw_softc *sc = arg1; 2615 int val; 2616 2617 val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) && 2618 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED)); 2619 2620 return SYSCTL_OUT(req, &val, sizeof val); 2621 } 2622 2623 static uint32_t 2624 ipw_read_table1(struct ipw_softc *sc, uint32_t off) 2625 { 2626 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off)); 2627 } 2628 2629 static void 2630 ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info) 2631 { 2632 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info); 2633 } 2634 2635 #if 0 2636 static int 2637 ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len) 2638 { 2639 uint32_t addr, info; 2640 uint16_t count, size; 2641 uint32_t total; 2642 2643 /* addr[4] + count[2] + size[2] */ 2644 addr = MEM_READ_4(sc, sc->table2_base + off); 2645 info = MEM_READ_4(sc, sc->table2_base + off + 4); 2646 2647 count = info >> 16; 2648 size = info & 0xffff; 2649 total = count * size; 2650 2651 if (total > *len) { 2652 *len = total; 2653 return EINVAL; 2654 } 2655 2656 *len = total; 2657 ipw_read_mem_1(sc, addr, buf, total); 2658 2659 return 0; 2660 } 2661 2662 static void 2663 ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2664 bus_size_t count) 2665 { 2666 for (; count > 0; offset++, datap++, count--) { 2667 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2668 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3)); 2669 } 2670 } 2671 #endif 2672 2673 static void 2674 ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, const uint8_t *datap, 2675 bus_size_t count) 2676 { 2677 for (; count > 0; offset++, datap++, count--) { 2678 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2679 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap); 2680 } 2681 } 2682 2683 static void 2684 ipw_scan_start(struct ieee80211com *ic) 2685 { 2686 struct ifnet *ifp = ic->ic_ifp; 2687 struct ipw_softc *sc = ifp->if_softc; 2688 2689 IPW_LOCK(sc); 2690 ipw_scan(sc); 2691 IPW_UNLOCK(sc); 2692 } 2693 2694 static void 2695 ipw_set_channel(struct ieee80211com *ic) 2696 { 2697 struct ifnet *ifp = ic->ic_ifp; 2698 struct ipw_softc *sc = ifp->if_softc; 2699 2700 IPW_LOCK(sc); 2701 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2702 ipw_disable(sc); 2703 ipw_setchannel(sc, ic->ic_curchan); 2704 ipw_enable(sc); 2705 } 2706 IPW_UNLOCK(sc); 2707 } 2708 2709 static void 2710 ipw_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 2711 { 2712 /* NB: all channels are scanned at once */ 2713 } 2714 2715 static void 2716 ipw_scan_mindwell(struct ieee80211_scan_state *ss) 2717 { 2718 /* NB: don't try to abort scan; wait for firmware to finish */ 2719 } 2720 2721 static void 2722 ipw_scan_end(struct ieee80211com *ic) 2723 { 2724 struct ifnet *ifp = ic->ic_ifp; 2725 struct ipw_softc *sc = ifp->if_softc; 2726 2727 IPW_LOCK(sc); 2728 sc->flags &= ~IPW_FLAG_SCANNING; 2729 IPW_UNLOCK(sc); 2730 }
Cache object: 62ffd9b2abcb6df9de5b4aa8ea174a63
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]