if_ipw.c revision 1.84
1/* $OpenBSD: if_ipw.c,v 1.84 2009/01/26 19:09:41 damien Exp $ */ 2 3/*- 4 * Copyright (c) 2004-2008 5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* 21 * Driver for Intel PRO/Wireless 2100 802.11 network adapters. 22 */ 23 24#include "bpfilter.h" 25 26#include <sys/param.h> 27#include <sys/sockio.h> 28#include <sys/sysctl.h> 29#include <sys/workq.h> 30#include <sys/mbuf.h> 31#include <sys/kernel.h> 32#include <sys/socket.h> 33#include <sys/systm.h> 34#include <sys/conf.h> 35#include <sys/device.h> 36 37#include <machine/bus.h> 38#include <machine/endian.h> 39#include <machine/intr.h> 40 41#include <dev/pci/pcireg.h> 42#include <dev/pci/pcivar.h> 43#include <dev/pci/pcidevs.h> 44 45#if NBPFILTER > 0 46#include <net/bpf.h> 47#endif 48#include <net/if.h> 49#include <net/if_arp.h> 50#include <net/if_dl.h> 51#include <net/if_media.h> 52#include <net/if_types.h> 53 54#include <netinet/in.h> 55#include <netinet/in_systm.h> 56#include <netinet/in_var.h> 57#include <netinet/if_ether.h> 58#include <netinet/ip.h> 59 60#include <net80211/ieee80211_var.h> 61#include <net80211/ieee80211_radiotap.h> 62 63#include <dev/pci/if_ipwreg.h> 64#include <dev/pci/if_ipwvar.h> 65 66int ipw_match(struct device *, void *, void *); 67void ipw_attach(struct device *, struct device *, void *); 68void ipw_power(int, void *); 69int ipw_dma_alloc(struct ipw_softc *); 70void ipw_release(struct ipw_softc *); 71int ipw_media_change(struct ifnet *); 72void ipw_media_status(struct ifnet *, struct ifmediareq *); 73int ipw_newstate(struct ieee80211com *, enum ieee80211_state, int); 74uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t); 75void ipw_command_intr(struct ipw_softc *, struct ipw_soft_buf *); 76void ipw_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *); 77void ipw_data_intr(struct ipw_softc *, struct ipw_status *, 78 struct ipw_soft_bd *, struct ipw_soft_buf *); 79void ipw_notification_intr(struct ipw_softc *, 80 struct ipw_soft_buf *); 81void ipw_rx_intr(struct ipw_softc *); 82void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *); 83void ipw_tx_intr(struct ipw_softc *); 84int ipw_intr(void *); 85int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t); 86int ipw_send_mgmt(struct ieee80211com *, struct ieee80211_node *, 87 int, int, int); 88int ipw_tx_start(struct ifnet *, struct mbuf *, 89 struct ieee80211_node *); 90void ipw_start(struct ifnet *); 91void ipw_watchdog(struct ifnet *); 92int ipw_ioctl(struct ifnet *, u_long, caddr_t); 93uint32_t ipw_read_table1(struct ipw_softc *, uint32_t); 94void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t); 95int ipw_read_table2(struct ipw_softc *, uint32_t, void *, 96 uint32_t *); 97void ipw_stop_master(struct ipw_softc *); 98int ipw_reset(struct ipw_softc *); 99int ipw_load_ucode(struct ipw_softc *, u_char *, int); 100int ipw_load_firmware(struct ipw_softc *, u_char *, int); 101int ipw_read_firmware(struct ipw_softc *, struct ipw_firmware *); 102void ipw_scan(void *, void *); 103void ipw_auth_and_assoc(void *, void *); 104int ipw_config(struct ipw_softc *); 105int ipw_init(struct ifnet *); 106void ipw_stop(struct ifnet *, int); 107void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *, 108 bus_size_t); 109void ipw_write_mem_1(struct ipw_softc *, bus_size_t, uint8_t *, 110 bus_size_t); 111 112static __inline uint8_t 113MEM_READ_1(struct ipw_softc *sc, uint32_t addr) 114{ 115 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, addr); 116 return CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA); 117} 118 119static __inline uint32_t 120MEM_READ_4(struct ipw_softc *sc, uint32_t addr) 121{ 122 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, addr); 123 return CSR_READ_4(sc, IPW_CSR_INDIRECT_DATA); 124} 125 126#ifdef IPW_DEBUG 127#define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0) 128#define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0) 129int ipw_debug = 0; 130#else 131#define DPRINTF(x) 132#define DPRINTFN(n, x) 133#endif 134 135struct cfattach ipw_ca = { 136 sizeof (struct ipw_softc), ipw_match, ipw_attach 137}; 138 139int 140ipw_match(struct device *parent, void *match, void *aux) 141{ 142 struct pci_attach_args *pa = aux; 143 144 if (PCI_VENDOR (pa->pa_id) == PCI_VENDOR_INTEL && 145 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2100) 146 return 1; 147 148 return 0; 149} 150 151/* Base Address Register */ 152#define IPW_PCI_BAR0 0x10 153 154void 155ipw_attach(struct device *parent, struct device *self, void *aux) 156{ 157 struct ipw_softc *sc = (struct ipw_softc *)self; 158 struct ieee80211com *ic = &sc->sc_ic; 159 struct ifnet *ifp = &ic->ic_if; 160 struct pci_attach_args *pa = aux; 161 const char *intrstr; 162 bus_space_tag_t memt; 163 bus_space_handle_t memh; 164 bus_addr_t base; 165 pci_intr_handle_t ih; 166 pcireg_t data; 167 uint16_t val; 168 int error, i; 169 170 sc->sc_pct = pa->pa_pc; 171 sc->sc_pcitag = pa->pa_tag, 172 173 /* clear device specific PCI configuration register 0x41 */ 174 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 175 data &= ~0x0000ff00; 176 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 177 178 /* map the register window */ 179 error = pci_mapreg_map(pa, IPW_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 180 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, &base, &sc->sc_sz, 0); 181 if (error != 0) { 182 printf(": could not map memory space\n"); 183 return; 184 } 185 186 sc->sc_st = memt; 187 sc->sc_sh = memh; 188 sc->sc_dmat = pa->pa_dmat; 189 190 /* disable interrupts */ 191 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 192 193 if (pci_intr_map(pa, &ih) != 0) { 194 printf(": could not map interrupt\n"); 195 return; 196 } 197 198 intrstr = pci_intr_string(sc->sc_pct, ih); 199 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, ipw_intr, sc, 200 sc->sc_dev.dv_xname); 201 if (sc->sc_ih == NULL) { 202 printf(": could not establish interrupt"); 203 if (intrstr != NULL) 204 printf(" at %s", intrstr); 205 printf("\n"); 206 return; 207 } 208 printf(": %s", intrstr); 209 210 if (ipw_reset(sc) != 0) { 211 printf(": could not reset adapter\n"); 212 return; 213 } 214 215 if (ipw_dma_alloc(sc) != 0) { 216 printf(": failed to allocate DMA resources\n"); 217 return; 218 } 219 220 ic->ic_phytype = IEEE80211_T_DS; 221 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 222 ic->ic_state = IEEE80211_S_INIT; 223 224 /* set device capabilities */ 225 ic->ic_caps = 226#ifndef IEEE80211_STA_ONLY 227 IEEE80211_C_IBSS | /* IBSS mode supported */ 228#endif 229 IEEE80211_C_MONITOR | /* monitor mode supported */ 230 IEEE80211_C_TXPMGT | /* tx power management */ 231 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 232 IEEE80211_C_WEP | /* s/w WEP */ 233 IEEE80211_C_RSN | /* WPA/RSN */ 234 IEEE80211_C_SCANALL; /* h/w scanning */ 235 236 /* read MAC address from EEPROM */ 237 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0); 238 ic->ic_myaddr[0] = val >> 8; 239 ic->ic_myaddr[1] = val & 0xff; 240 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1); 241 ic->ic_myaddr[2] = val >> 8; 242 ic->ic_myaddr[3] = val & 0xff; 243 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2); 244 ic->ic_myaddr[4] = val >> 8; 245 ic->ic_myaddr[5] = val & 0xff; 246 247 printf(", address %s\n", ether_sprintf(ic->ic_myaddr)); 248 249 /* set supported .11b rates */ 250 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 251 252 /* set supported .11b channels (1 through 14) */ 253 for (i = 1; i <= 14; i++) { 254 ic->ic_channels[i].ic_freq = 255 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 256 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 257 } 258 259 /* IBSS channel undefined for now */ 260 ic->ic_ibss_chan = &ic->ic_channels[0]; 261 262 ifp->if_softc = sc; 263 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 264 ifp->if_init = ipw_init; 265 ifp->if_ioctl = ipw_ioctl; 266 ifp->if_start = ipw_start; 267 ifp->if_watchdog = ipw_watchdog; 268 IFQ_SET_READY(&ifp->if_snd); 269 bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); 270 271 if_attach(ifp); 272 ieee80211_ifattach(ifp); 273 /* override state transition machine */ 274 sc->sc_newstate = ic->ic_newstate; 275 ic->ic_newstate = ipw_newstate; 276 ic->ic_send_mgmt = ipw_send_mgmt; 277 ieee80211_media_init(ifp, ipw_media_change, ipw_media_status); 278 279 sc->powerhook = powerhook_establish(ipw_power, sc); 280 281#if NBPFILTER > 0 282 bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, 283 sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN); 284 285 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 286 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 287 sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT); 288 289 sc->sc_txtap_len = sizeof sc->sc_txtapu; 290 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 291 sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT); 292#endif 293} 294 295void 296ipw_power(int why, void *arg) 297{ 298 struct ipw_softc *sc = arg; 299 struct ifnet *ifp; 300 pcireg_t data; 301 302 if (why != PWR_RESUME) 303 return; 304 305 /* clear device specific PCI configuration register 0x41 */ 306 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 307 data &= ~0x0000ff00; 308 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 309 310 ifp = &sc->sc_ic.ic_if; 311 if (ifp->if_flags & IFF_UP) { 312 ifp->if_init(ifp); 313 if (ifp->if_flags & IFF_RUNNING) 314 ifp->if_start(ifp); 315 } 316} 317 318int 319ipw_dma_alloc(struct ipw_softc *sc) 320{ 321 struct ipw_soft_bd *sbd; 322 struct ipw_soft_hdr *shdr; 323 struct ipw_soft_buf *sbuf; 324 int i, nsegs, error; 325 326 /* 327 * Allocate and map tx ring. 328 */ 329 error = bus_dmamap_create(sc->sc_dmat, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, 330 BUS_DMA_NOWAIT, &sc->tbd_map); 331 if (error != 0) { 332 printf("%s: could not create tx ring DMA map\n", 333 sc->sc_dev.dv_xname); 334 goto fail; 335 } 336 337 error = bus_dmamem_alloc(sc->sc_dmat, IPW_TBD_SZ, PAGE_SIZE, 0, 338 &sc->tbd_seg, 1, &nsegs, BUS_DMA_NOWAIT); 339 if (error != 0) { 340 printf("%s: could not allocate tx ring DMA memory\n", 341 sc->sc_dev.dv_xname); 342 goto fail; 343 } 344 345 error = bus_dmamem_map(sc->sc_dmat, &sc->tbd_seg, nsegs, IPW_TBD_SZ, 346 (caddr_t *)&sc->tbd_list, BUS_DMA_NOWAIT); 347 if (error != 0) { 348 printf("%s: could not map tx ring DMA memory\n", 349 sc->sc_dev.dv_xname); 350 goto fail; 351 } 352 353 error = bus_dmamap_load(sc->sc_dmat, sc->tbd_map, sc->tbd_list, 354 IPW_TBD_SZ, NULL, BUS_DMA_NOWAIT); 355 if (error != 0) { 356 printf("%s: could not load tx ring DMA map\n", 357 sc->sc_dev.dv_xname); 358 goto fail; 359 } 360 361 /* 362 * Allocate and map rx ring. 363 */ 364 error = bus_dmamap_create(sc->sc_dmat, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, 365 BUS_DMA_NOWAIT, &sc->rbd_map); 366 if (error != 0) { 367 printf("%s: could not create rx ring DMA map\n", 368 sc->sc_dev.dv_xname); 369 goto fail; 370 } 371 372 error = bus_dmamem_alloc(sc->sc_dmat, IPW_RBD_SZ, PAGE_SIZE, 0, 373 &sc->rbd_seg, 1, &nsegs, BUS_DMA_NOWAIT); 374 if (error != 0) { 375 printf("%s: could not allocate rx ring DMA memory\n", 376 sc->sc_dev.dv_xname); 377 goto fail; 378 } 379 380 error = bus_dmamem_map(sc->sc_dmat, &sc->rbd_seg, nsegs, IPW_RBD_SZ, 381 (caddr_t *)&sc->rbd_list, BUS_DMA_NOWAIT); 382 if (error != 0) { 383 printf("%s: could not map rx ring DMA memory\n", 384 sc->sc_dev.dv_xname); 385 goto fail; 386 } 387 388 error = bus_dmamap_load(sc->sc_dmat, sc->rbd_map, sc->rbd_list, 389 IPW_RBD_SZ, NULL, BUS_DMA_NOWAIT); 390 if (error != 0) { 391 printf("%s: could not load tx ring DMA map\n", 392 sc->sc_dev.dv_xname); 393 goto fail; 394 } 395 396 /* 397 * Allocate and map status ring. 398 */ 399 error = bus_dmamap_create(sc->sc_dmat, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 400 0, BUS_DMA_NOWAIT, &sc->status_map); 401 if (error != 0) { 402 printf("%s: could not create status ring DMA map\n", 403 sc->sc_dev.dv_xname); 404 goto fail; 405 } 406 407 error = bus_dmamem_alloc(sc->sc_dmat, IPW_STATUS_SZ, PAGE_SIZE, 0, 408 &sc->status_seg, 1, &nsegs, BUS_DMA_NOWAIT); 409 if (error != 0) { 410 printf("%s: could not allocate status ring DMA memory\n", 411 sc->sc_dev.dv_xname); 412 goto fail; 413 } 414 415 error = bus_dmamem_map(sc->sc_dmat, &sc->status_seg, nsegs, 416 IPW_STATUS_SZ, (caddr_t *)&sc->status_list, BUS_DMA_NOWAIT); 417 if (error != 0) { 418 printf("%s: could not map status ring DMA memory\n", 419 sc->sc_dev.dv_xname); 420 goto fail; 421 } 422 423 error = bus_dmamap_load(sc->sc_dmat, sc->status_map, sc->status_list, 424 IPW_STATUS_SZ, NULL, BUS_DMA_NOWAIT); 425 if (error != 0) { 426 printf("%s: could not load status ring DMA map\n", 427 sc->sc_dev.dv_xname); 428 goto fail; 429 } 430 431 /* 432 * Allocate command DMA map. 433 */ 434 error = bus_dmamap_create(sc->sc_dmat, sizeof (struct ipw_cmd), 1, 435 sizeof (struct ipw_cmd), 0, BUS_DMA_NOWAIT, &sc->cmd_map); 436 if (error != 0) { 437 printf("%s: could not create command DMA map\n", 438 sc->sc_dev.dv_xname); 439 goto fail; 440 } 441 442 /* 443 * Allocate headers DMA maps. 444 */ 445 SLIST_INIT(&sc->free_shdr); 446 for (i = 0; i < IPW_NDATA; i++) { 447 shdr = &sc->shdr_list[i]; 448 error = bus_dmamap_create(sc->sc_dmat, sizeof (struct ipw_hdr), 449 1, sizeof (struct ipw_hdr), 0, BUS_DMA_NOWAIT, &shdr->map); 450 if (error != 0) { 451 printf("%s: could not create header DMA map\n", 452 sc->sc_dev.dv_xname); 453 goto fail; 454 } 455 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 456 } 457 458 /* 459 * Allocate tx buffers DMA maps. 460 */ 461 SLIST_INIT(&sc->free_sbuf); 462 for (i = 0; i < IPW_NDATA; i++) { 463 sbuf = &sc->tx_sbuf_list[i]; 464 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IPW_MAX_NSEG, 465 MCLBYTES, 0, BUS_DMA_NOWAIT, &sbuf->map); 466 if (error != 0) { 467 printf("%s: could not create tx DMA map\n", 468 sc->sc_dev.dv_xname); 469 goto fail; 470 } 471 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 472 } 473 474 /* 475 * Initialize tx ring. 476 */ 477 for (i = 0; i < IPW_NTBD; i++) { 478 sbd = &sc->stbd_list[i]; 479 sbd->bd = &sc->tbd_list[i]; 480 sbd->type = IPW_SBD_TYPE_NOASSOC; 481 } 482 483 /* 484 * Pre-allocate rx buffers and DMA maps. 485 */ 486 for (i = 0; i < IPW_NRBD; i++) { 487 sbd = &sc->srbd_list[i]; 488 sbuf = &sc->rx_sbuf_list[i]; 489 sbd->bd = &sc->rbd_list[i]; 490 491 MGETHDR(sbuf->m, M_DONTWAIT, MT_DATA); 492 if (sbuf->m == NULL) { 493 printf("%s: could not allocate rx mbuf\n", 494 sc->sc_dev.dv_xname); 495 error = ENOMEM; 496 goto fail; 497 } 498 MCLGET(sbuf->m, M_DONTWAIT); 499 if (!(sbuf->m->m_flags & M_EXT)) { 500 m_freem(sbuf->m); 501 printf("%s: could not allocate rx mbuf cluster\n", 502 sc->sc_dev.dv_xname); 503 error = ENOMEM; 504 goto fail; 505 } 506 507 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 508 0, BUS_DMA_NOWAIT, &sbuf->map); 509 if (error != 0) { 510 printf("%s: could not create rx DMA map\n", 511 sc->sc_dev.dv_xname); 512 goto fail; 513 } 514 515 error = bus_dmamap_load(sc->sc_dmat, sbuf->map, 516 mtod(sbuf->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); 517 if (error != 0) { 518 printf("%s: could not map rx DMA memory\n", 519 sc->sc_dev.dv_xname); 520 goto fail; 521 } 522 523 sbd->type = IPW_SBD_TYPE_DATA; 524 sbd->priv = sbuf; 525 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[0].ds_addr); 526 sbd->bd->len = htole32(MCLBYTES); 527 } 528 529 bus_dmamap_sync(sc->sc_dmat, sc->rbd_map, 0, IPW_RBD_SZ, 530 BUS_DMASYNC_PREWRITE); 531 532 return 0; 533 534fail: ipw_release(sc); 535 return error; 536} 537 538void 539ipw_release(struct ipw_softc *sc) 540{ 541 struct ipw_soft_buf *sbuf; 542 int i; 543 544 if (sc->tbd_map != NULL) { 545 if (sc->tbd_list != NULL) { 546 bus_dmamap_unload(sc->sc_dmat, sc->tbd_map); 547 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->tbd_list, 548 IPW_TBD_SZ); 549 bus_dmamem_free(sc->sc_dmat, &sc->tbd_seg, 1); 550 } 551 bus_dmamap_destroy(sc->sc_dmat, sc->tbd_map); 552 } 553 554 if (sc->rbd_map != NULL) { 555 if (sc->rbd_list != NULL) { 556 bus_dmamap_unload(sc->sc_dmat, sc->rbd_map); 557 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->rbd_list, 558 IPW_RBD_SZ); 559 bus_dmamem_free(sc->sc_dmat, &sc->rbd_seg, 1); 560 } 561 bus_dmamap_destroy(sc->sc_dmat, sc->rbd_map); 562 } 563 564 if (sc->status_map != NULL) { 565 if (sc->status_list != NULL) { 566 bus_dmamap_unload(sc->sc_dmat, sc->status_map); 567 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->status_list, 568 IPW_RBD_SZ); 569 bus_dmamem_free(sc->sc_dmat, &sc->status_seg, 1); 570 } 571 bus_dmamap_destroy(sc->sc_dmat, sc->status_map); 572 } 573 574 if (sc->cmd_map != NULL) 575 bus_dmamap_destroy(sc->sc_dmat, sc->cmd_map); 576 577 for (i = 0; i < IPW_NDATA; i++) 578 bus_dmamap_destroy(sc->sc_dmat, sc->shdr_list[i].map); 579 580 for (i = 0; i < IPW_NDATA; i++) 581 bus_dmamap_destroy(sc->sc_dmat, sc->tx_sbuf_list[i].map); 582 583 for (i = 0; i < IPW_NRBD; i++) { 584 sbuf = &sc->rx_sbuf_list[i]; 585 if (sbuf->map != NULL) { 586 if (sbuf->m != NULL) { 587 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 588 m_freem(sbuf->m); 589 } 590 bus_dmamap_destroy(sc->sc_dmat, sbuf->map); 591 } 592 } 593} 594 595int 596ipw_media_change(struct ifnet *ifp) 597{ 598 int error; 599 600 error = ieee80211_media_change(ifp); 601 if (error != ENETRESET) 602 return error; 603 604 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 605 ipw_init(ifp); 606 607 return 0; 608} 609 610void 611ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr) 612{ 613 struct ipw_softc *sc = ifp->if_softc; 614 struct ieee80211com *ic = &sc->sc_ic; 615 static const struct { 616 uint32_t val; 617 int rate; 618 } rates[] = { 619 { IPW_RATE_DS1, 2 }, 620 { IPW_RATE_DS2, 4 }, 621 { IPW_RATE_DS5, 11 }, 622 { IPW_RATE_DS11, 22 }, 623 }; 624 uint32_t val; 625 int rate, i; 626 627 imr->ifm_status = IFM_AVALID; 628 imr->ifm_active = IFM_IEEE80211; 629 if (ic->ic_state == IEEE80211_S_RUN) 630 imr->ifm_status |= IFM_ACTIVE; 631 632 /* read current transmission rate from adapter */ 633 val = ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE); 634 val &= 0xf; 635 636 /* convert rate to 802.11 rate */ 637 for (i = 0; i < nitems(rates) && rates[i].val != val; i++); 638 rate = (i < nitems(rates)) ? rates[i].rate : 0; 639 640 imr->ifm_active |= IFM_IEEE80211_11B; 641 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 642 switch (ic->ic_opmode) { 643 case IEEE80211_M_STA: 644 break; 645#ifndef IEEE80211_STA_ONLY 646 case IEEE80211_M_IBSS: 647 imr->ifm_active |= IFM_IEEE80211_IBSS; 648 break; 649#endif 650 case IEEE80211_M_MONITOR: 651 imr->ifm_active |= IFM_IEEE80211_MONITOR; 652 break; 653 default: 654 /* should not get there */ 655 break; 656 } 657} 658 659int 660ipw_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 661{ 662 struct ipw_softc *sc = ic->ic_softc; 663 int error; 664 665 switch (nstate) { 666 case IEEE80211_S_SCAN: 667 error = workq_add_task(NULL, 0, ipw_scan, sc, NULL); 668 if (error != 0) 669 return error; 670 break; 671 672 case IEEE80211_S_AUTH: 673 error = workq_add_task(NULL, 0, ipw_auth_and_assoc, sc, NULL); 674 if (error != 0) 675 return error; 676 break; 677 678 case IEEE80211_S_RUN: 679 case IEEE80211_S_INIT: 680 case IEEE80211_S_ASSOC: 681 /* nothing to do */ 682 break; 683 } 684 685 ic->ic_state = nstate; 686 return 0; 687} 688 689/* 690 * Read 16 bits at address 'addr' from the Microwire EEPROM. 691 * DON'T PLAY WITH THIS CODE UNLESS YOU KNOW *EXACTLY* WHAT YOU'RE DOING! 692 */ 693uint16_t 694ipw_read_prom_word(struct ipw_softc *sc, uint8_t addr) 695{ 696 uint32_t tmp; 697 uint16_t val; 698 int n; 699 700 /* clock C once before the first command */ 701 IPW_EEPROM_CTL(sc, 0); 702 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 703 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 704 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 705 706 /* write start bit (1) */ 707 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 708 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 709 710 /* write READ opcode (10) */ 711 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 712 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 713 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 714 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 715 716 /* write address A7-A0 */ 717 for (n = 7; n >= 0; n--) { 718 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 719 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D)); 720 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 721 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C); 722 } 723 724 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 725 726 /* read data Q15-Q0 */ 727 val = 0; 728 for (n = 15; n >= 0; n--) { 729 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 730 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 731 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL); 732 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n; 733 } 734 735 IPW_EEPROM_CTL(sc, 0); 736 737 /* clear Chip Select and clock C */ 738 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 739 IPW_EEPROM_CTL(sc, 0); 740 IPW_EEPROM_CTL(sc, IPW_EEPROM_C); 741 742 return val; 743} 744 745void 746ipw_command_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 747{ 748 struct ipw_cmd *cmd; 749 750 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, sizeof (struct ipw_cmd), 751 BUS_DMASYNC_POSTREAD); 752 753 cmd = mtod(sbuf->m, struct ipw_cmd *); 754 755 DPRINTFN(2, ("received command ack type=%u,status=%u\n", 756 letoh32(cmd->type), letoh32(cmd->status))); 757 758 wakeup(&sc->cmd); 759} 760 761void 762ipw_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 763{ 764 struct ieee80211com *ic = &sc->sc_ic; 765 struct ifnet *ifp = &ic->ic_if; 766 uint32_t state; 767 768 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, sizeof state, 769 BUS_DMASYNC_POSTREAD); 770 771 state = letoh32(*mtod(sbuf->m, uint32_t *)); 772 773 DPRINTFN(2, ("firmware state changed to 0x%x\n", state)); 774 775 switch (state) { 776 case IPW_STATE_ASSOCIATED: 777 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 778 break; 779 780 case IPW_STATE_SCANNING: 781 if (ic->ic_state == IEEE80211_S_RUN) 782 ieee80211_begin_scan(ifp); 783 break; 784 785 case IPW_STATE_SCAN_COMPLETE: 786 if (ic->ic_state == IEEE80211_S_SCAN) 787 ieee80211_end_scan(ifp); 788 break; 789 790 case IPW_STATE_ASSOCIATION_LOST: 791 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 792 break; 793 794 case IPW_STATE_DISABLED: 795 wakeup(sc); 796 break; 797 798 case IPW_STATE_RADIO_DISABLED: 799 ifp->if_flags &= ~IFF_UP; 800 ipw_stop(&ic->ic_if, 1); 801 break; 802 } 803} 804 805void 806ipw_data_intr(struct ipw_softc *sc, struct ipw_status *status, 807 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf) 808{ 809 struct ieee80211com *ic = &sc->sc_ic; 810 struct ifnet *ifp = &ic->ic_if; 811 struct mbuf *mnew, *m; 812 struct ieee80211_frame *wh; 813 struct ieee80211_rxinfo rxi; 814 struct ieee80211_node *ni; 815 int error; 816 817 DPRINTFN(5, ("received data frame len=%u,rssi=%u\n", 818 letoh32(status->len), status->rssi)); 819 820 /* 821 * Try to allocate a new mbuf for this ring element and load it before 822 * processing the current mbuf. If the ring element cannot be loaded, 823 * drop the received packet and reuse the old mbuf. In the unlikely 824 * case that the old mbuf can't be reloaded either, explicitly panic. 825 */ 826 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 827 if (mnew == NULL) { 828 ifp->if_ierrors++; 829 return; 830 } 831 MCLGET(mnew, M_DONTWAIT); 832 if (!(mnew->m_flags & M_EXT)) { 833 m_freem(mnew); 834 ifp->if_ierrors++; 835 return; 836 } 837 838 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, letoh32(status->len), 839 BUS_DMASYNC_POSTREAD); 840 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 841 842 error = bus_dmamap_load(sc->sc_dmat, sbuf->map, mtod(mnew, void *), 843 MCLBYTES, NULL, BUS_DMA_NOWAIT); 844 if (error != 0) { 845 m_freem(mnew); 846 847 /* try to reload the old mbuf */ 848 error = bus_dmamap_load(sc->sc_dmat, sbuf->map, 849 mtod(sbuf->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); 850 if (error != 0) { 851 /* very unlikely that it will fail... */ 852 panic("%s: could not load old rx mbuf", 853 sc->sc_dev.dv_xname); 854 } 855 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[0].ds_addr); 856 ifp->if_ierrors++; 857 return; 858 } 859 860 m = sbuf->m; 861 sbuf->m = mnew; 862 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[0].ds_addr); 863 864 /* finalize mbuf */ 865 m->m_pkthdr.rcvif = ifp; 866 m->m_pkthdr.len = m->m_len = letoh32(status->len); 867 868#if NBPFILTER > 0 869 if (sc->sc_drvbpf != NULL) { 870 struct mbuf mb; 871 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap; 872 873 tap->wr_flags = 0; 874 tap->wr_antsignal = status->rssi; 875 tap->wr_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 876 tap->wr_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 877 878 mb.m_data = (caddr_t)tap; 879 mb.m_len = sc->sc_rxtap_len; 880 mb.m_next = m; 881 mb.m_nextpkt = NULL; 882 mb.m_type = 0; 883 mb.m_flags = 0; 884 bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN); 885 } 886#endif 887 888 wh = mtod(m, struct ieee80211_frame *); 889 ni = ieee80211_find_rxnode(ic, wh); 890 891 /* send the frame to the upper layer */ 892 rxi.rxi_flags = 0; 893 rxi.rxi_rssi = status->rssi; 894 rxi.rxi_tstamp = 0; /* unused */ 895 ieee80211_input(ifp, m, ni, &rxi); 896 897 ieee80211_release_node(ic, ni); 898} 899 900void 901ipw_notification_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 902{ 903 DPRINTFN(2, ("received notification\n")); 904} 905 906void 907ipw_rx_intr(struct ipw_softc *sc) 908{ 909 struct ipw_status *status; 910 struct ipw_soft_bd *sbd; 911 struct ipw_soft_buf *sbuf; 912 uint32_t r, i; 913 914 r = CSR_READ_4(sc, IPW_CSR_RX_READ_INDEX); 915 916 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) { 917 918 bus_dmamap_sync(sc->sc_dmat, sc->rbd_map, 919 i * sizeof (struct ipw_bd), sizeof (struct ipw_bd), 920 BUS_DMASYNC_POSTREAD); 921 922 bus_dmamap_sync(sc->sc_dmat, sc->status_map, 923 i * sizeof (struct ipw_status), sizeof (struct ipw_status), 924 BUS_DMASYNC_POSTREAD); 925 926 status = &sc->status_list[i]; 927 sbd = &sc->srbd_list[i]; 928 sbuf = sbd->priv; 929 930 switch (letoh16(status->code) & 0xf) { 931 case IPW_STATUS_CODE_COMMAND: 932 ipw_command_intr(sc, sbuf); 933 break; 934 935 case IPW_STATUS_CODE_NEWSTATE: 936 ipw_newstate_intr(sc, sbuf); 937 break; 938 939 case IPW_STATUS_CODE_DATA_802_3: 940 case IPW_STATUS_CODE_DATA_802_11: 941 ipw_data_intr(sc, status, sbd, sbuf); 942 break; 943 944 case IPW_STATUS_CODE_NOTIFICATION: 945 ipw_notification_intr(sc, sbuf); 946 break; 947 948 default: 949 printf("%s: unknown status code %u\n", 950 sc->sc_dev.dv_xname, letoh16(status->code)); 951 } 952 sbd->bd->flags = 0; 953 954 bus_dmamap_sync(sc->sc_dmat, sc->rbd_map, 955 i * sizeof (struct ipw_bd), sizeof (struct ipw_bd), 956 BUS_DMASYNC_PREWRITE); 957 } 958 959 /* tell the firmware what we have processed */ 960 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1; 961 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE_INDEX, sc->rxcur); 962} 963 964void 965ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd) 966{ 967 struct ieee80211com *ic = &sc->sc_ic; 968 struct ipw_soft_hdr *shdr; 969 struct ipw_soft_buf *sbuf; 970 971 switch (sbd->type) { 972 case IPW_SBD_TYPE_COMMAND: 973 bus_dmamap_unload(sc->sc_dmat, sc->cmd_map); 974 break; 975 976 case IPW_SBD_TYPE_HEADER: 977 shdr = sbd->priv; 978 bus_dmamap_unload(sc->sc_dmat, shdr->map); 979 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 980 break; 981 982 case IPW_SBD_TYPE_DATA: 983 sbuf = sbd->priv; 984 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 985 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 986 987 m_freem(sbuf->m); 988 989 if (sbuf->ni != NULL) 990 ieee80211_release_node(ic, sbuf->ni); 991 992 /* kill watchdog timer */ 993 sc->sc_tx_timer = 0; 994 break; 995 } 996 sbd->type = IPW_SBD_TYPE_NOASSOC; 997} 998 999void 1000ipw_tx_intr(struct ipw_softc *sc) 1001{ 1002 struct ifnet *ifp = &sc->sc_ic.ic_if; 1003 struct ipw_soft_bd *sbd; 1004 uint32_t r, i; 1005 1006 r = CSR_READ_4(sc, IPW_CSR_TX_READ_INDEX); 1007 1008 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) { 1009 sbd = &sc->stbd_list[i]; 1010 1011 if (sbd->type == IPW_SBD_TYPE_DATA) 1012 ifp->if_opackets++; 1013 1014 ipw_release_sbd(sc, sbd); 1015 sc->txfree++; 1016 } 1017 1018 /* remember what the firmware has processed */ 1019 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1; 1020 1021 /* call start() since some buffer descriptors have been released */ 1022 ifp->if_flags &= ~IFF_OACTIVE; 1023 (*ifp->if_start)(ifp); 1024} 1025 1026int 1027ipw_intr(void *arg) 1028{ 1029 struct ipw_softc *sc = arg; 1030 struct ifnet *ifp = &sc->sc_ic.ic_if; 1031 uint32_t r; 1032 1033 if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) 1034 return 0; 1035 1036 /* disable interrupts */ 1037 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1038 1039 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) { 1040 printf("%s: fatal firmware error\n", sc->sc_dev.dv_xname); 1041 ifp->if_flags &= ~IFF_UP; 1042 ipw_stop(ifp, 1); 1043 return 1; 1044 } 1045 1046 if (r & IPW_INTR_FW_INIT_DONE) 1047 wakeup(sc); 1048 1049 if (r & IPW_INTR_RX_TRANSFER) 1050 ipw_rx_intr(sc); 1051 1052 if (r & IPW_INTR_TX_TRANSFER) 1053 ipw_tx_intr(sc); 1054 1055 /* acknowledge interrupts */ 1056 CSR_WRITE_4(sc, IPW_CSR_INTR, r); 1057 1058 /* re-enable interrupts */ 1059 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1060 1061 return 1; 1062} 1063 1064int 1065ipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len) 1066{ 1067 struct ipw_soft_bd *sbd; 1068 int s, error; 1069 1070 s = splnet(); 1071 1072 sc->cmd.type = htole32(type); 1073 sc->cmd.subtype = htole32(0); 1074 sc->cmd.len = htole32(len); 1075 sc->cmd.seq = htole32(0); 1076 if (data != NULL) 1077 bcopy(data, sc->cmd.data, len); 1078 1079 error = bus_dmamap_load(sc->sc_dmat, sc->cmd_map, &sc->cmd, 1080 sizeof (struct ipw_cmd), NULL, BUS_DMA_NOWAIT); 1081 if (error != 0) { 1082 printf("%s: could not map command DMA memory\n", 1083 sc->sc_dev.dv_xname); 1084 splx(s); 1085 return error; 1086 } 1087 1088 sbd = &sc->stbd_list[sc->txcur]; 1089 sbd->type = IPW_SBD_TYPE_COMMAND; 1090 sbd->bd->physaddr = htole32(sc->cmd_map->dm_segs[0].ds_addr); 1091 sbd->bd->len = htole32(sizeof (struct ipw_cmd)); 1092 sbd->bd->nfrag = 1; 1093 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND | 1094 IPW_BD_FLAG_TX_LAST_FRAGMENT; 1095 1096 bus_dmamap_sync(sc->sc_dmat, sc->cmd_map, 0, sizeof (struct ipw_cmd), 1097 BUS_DMASYNC_PREWRITE); 1098 bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 1099 sc->txcur * sizeof (struct ipw_bd), sizeof (struct ipw_bd), 1100 BUS_DMASYNC_PREWRITE); 1101 1102 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1103 sc->txfree--; 1104 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE_INDEX, sc->txcur); 1105 1106 DPRINTFN(2, ("sending command type=%u,len=%u\n", type, len)); 1107 1108 /* wait at most one second for command to complete */ 1109 error = tsleep(&sc->cmd, 0, "ipwcmd", hz); 1110 splx(s); 1111 1112 return error; 1113} 1114 1115/* ARGSUSED */ 1116int 1117ipw_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, int type, 1118 int arg1, int arg2) 1119{ 1120 return EOPNOTSUPP; 1121} 1122 1123int 1124ipw_tx_start(struct ifnet *ifp, struct mbuf *m, struct ieee80211_node *ni) 1125{ 1126 struct ipw_softc *sc = ifp->if_softc; 1127 struct ieee80211com *ic = &sc->sc_ic; 1128 struct ieee80211_frame *wh; 1129 struct ieee80211_key *k; 1130 struct mbuf *m1; 1131 struct ipw_soft_bd *sbd; 1132 struct ipw_soft_hdr *shdr; 1133 struct ipw_soft_buf *sbuf; 1134 int error, i; 1135 1136 wh = mtod(m, struct ieee80211_frame *); 1137 1138 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1139 k = ieee80211_get_txkey(ic, wh, ni); 1140 1141 if ((m = ieee80211_encrypt(ic, m, k)) == NULL) 1142 return ENOBUFS; 1143 1144 /* packet header may have moved, reset our local pointer */ 1145 wh = mtod(m, struct ieee80211_frame *); 1146 } 1147 1148#if NBPFILTER > 0 1149 if (sc->sc_drvbpf != NULL) { 1150 struct mbuf mb; 1151 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap; 1152 1153 tap->wt_flags = 0; 1154 tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1155 tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1156 1157 mb.m_data = (caddr_t)tap; 1158 mb.m_len = sc->sc_txtap_len; 1159 mb.m_next = m; 1160 mb.m_nextpkt = NULL; 1161 mb.m_type = 0; 1162 mb.m_flags = 0; 1163 bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT); 1164 } 1165#endif 1166 1167 shdr = SLIST_FIRST(&sc->free_shdr); 1168 sbuf = SLIST_FIRST(&sc->free_sbuf); 1169 1170 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND); 1171 shdr->hdr.subtype = htole32(0); 1172 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) ? 1 : 0; 1173 shdr->hdr.encrypt = 0; 1174 shdr->hdr.keyidx = 0; 1175 shdr->hdr.keysz = 0; 1176 shdr->hdr.fragmentsz = htole16(0); 1177 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2); 1178 if (ic->ic_opmode == IEEE80211_M_STA) 1179 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3); 1180 else 1181 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1); 1182 1183 /* trim IEEE802.11 header */ 1184 m_adj(m, sizeof (struct ieee80211_frame)); 1185 1186 error = bus_dmamap_load_mbuf(sc->sc_dmat, sbuf->map, m, BUS_DMA_NOWAIT); 1187 if (error != 0 && error != EFBIG) { 1188 printf("%s: could not map mbuf (error %d)\n", 1189 sc->sc_dev.dv_xname, error); 1190 m_freem(m); 1191 return error; 1192 } 1193 if (error != 0) { 1194 /* too many fragments, linearize */ 1195 MGETHDR(m1, M_DONTWAIT, MT_DATA); 1196 if (m1 == NULL) { 1197 m_freem(m); 1198 return ENOBUFS; 1199 } 1200 if (m->m_pkthdr.len > MHLEN) { 1201 MCLGET(m1, M_DONTWAIT); 1202 if (!(m1->m_flags & M_EXT)) { 1203 m_freem(m); 1204 m_freem(m1); 1205 return ENOBUFS; 1206 } 1207 } 1208 m_copydata(m, 0, m->m_pkthdr.len, mtod(m1, caddr_t)); 1209 m1->m_pkthdr.len = m1->m_len = m->m_pkthdr.len; 1210 m_freem(m); 1211 m = m1; 1212 1213 error = bus_dmamap_load_mbuf(sc->sc_dmat, sbuf->map, m, 1214 BUS_DMA_NOWAIT); 1215 if (error != 0) { 1216 printf("%s: could not map mbuf (error %d)\n", 1217 sc->sc_dev.dv_xname, error); 1218 m_freem(m); 1219 return error; 1220 } 1221 } 1222 1223 error = bus_dmamap_load(sc->sc_dmat, shdr->map, &shdr->hdr, 1224 sizeof (struct ipw_hdr), NULL, BUS_DMA_NOWAIT); 1225 if (error != 0) { 1226 printf("%s: could not map header DMA memory (error %d)\n", 1227 sc->sc_dev.dv_xname, error); 1228 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 1229 m_freem(m); 1230 return error; 1231 } 1232 1233 SLIST_REMOVE_HEAD(&sc->free_sbuf, next); 1234 SLIST_REMOVE_HEAD(&sc->free_shdr, next); 1235 1236 sbd = &sc->stbd_list[sc->txcur]; 1237 sbd->type = IPW_SBD_TYPE_HEADER; 1238 sbd->priv = shdr; 1239 sbd->bd->physaddr = htole32(shdr->map->dm_segs[0].ds_addr); 1240 sbd->bd->len = htole32(sizeof (struct ipw_hdr)); 1241 sbd->bd->nfrag = 1 + sbuf->map->dm_nsegs; 1242 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 | 1243 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1244 1245 bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 1246 sc->txcur * sizeof (struct ipw_bd), 1247 sizeof (struct ipw_bd), BUS_DMASYNC_PREWRITE); 1248 1249 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1250 sc->txfree--; 1251 1252 sbuf->m = m; 1253 sbuf->ni = ni; 1254 1255 for (i = 0; i < sbuf->map->dm_nsegs; i++) { 1256 sbd = &sc->stbd_list[sc->txcur]; 1257 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[i].ds_addr); 1258 sbd->bd->len = htole32(sbuf->map->dm_segs[i].ds_len); 1259 sbd->bd->nfrag = 0; /* used only in first bd */ 1260 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3; 1261 if (i == sbuf->map->dm_nsegs - 1) { 1262 sbd->type = IPW_SBD_TYPE_DATA; 1263 sbd->priv = sbuf; 1264 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT; 1265 } else { 1266 sbd->type = IPW_SBD_TYPE_NOASSOC; 1267 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1268 } 1269 1270 bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 1271 sc->txcur * sizeof (struct ipw_bd), 1272 sizeof (struct ipw_bd), BUS_DMASYNC_PREWRITE); 1273 1274 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1275 sc->txfree--; 1276 } 1277 1278 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, sbuf->map->dm_mapsize, 1279 BUS_DMASYNC_PREWRITE); 1280 bus_dmamap_sync(sc->sc_dmat, shdr->map, 0, sizeof (struct ipw_hdr), 1281 BUS_DMASYNC_PREWRITE); 1282 1283 /* inform firmware about this new packet */ 1284 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE_INDEX, sc->txcur); 1285 1286 return 0; 1287} 1288 1289void 1290ipw_start(struct ifnet *ifp) 1291{ 1292 struct ipw_softc *sc = ifp->if_softc; 1293 struct ieee80211com *ic = &sc->sc_ic; 1294 struct ieee80211_node *ni; 1295 struct mbuf *m; 1296 1297 if (ic->ic_state != IEEE80211_S_RUN) 1298 return; 1299 1300 for (;;) { 1301 IFQ_POLL(&ifp->if_snd, m); 1302 if (m == NULL) 1303 break; 1304 1305 if (sc->txfree < 1 + IPW_MAX_NSEG) { 1306 ifp->if_flags |= IFF_OACTIVE; 1307 break; 1308 } 1309 IFQ_DEQUEUE(&ifp->if_snd, m); 1310#if NBPFILTER > 0 1311 if (ifp->if_bpf != NULL) 1312 bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); 1313#endif 1314 m = ieee80211_encap(ifp, m, &ni); 1315 if (m == NULL) 1316 continue; 1317#if NBPFILTER > 0 1318 if (ic->ic_rawbpf != NULL) 1319 bpf_mtap(ic->ic_rawbpf, m, BPF_DIRECTION_OUT); 1320#endif 1321 if (ipw_tx_start(ifp, m, ni) != 0) { 1322 if (ni != NULL) 1323 ieee80211_release_node(ic, ni); 1324 ifp->if_oerrors++; 1325 break; 1326 } 1327 1328 /* start watchdog timer */ 1329 sc->sc_tx_timer = 5; 1330 ifp->if_timer = 1; 1331 } 1332} 1333 1334void 1335ipw_watchdog(struct ifnet *ifp) 1336{ 1337 struct ipw_softc *sc = ifp->if_softc; 1338 1339 ifp->if_timer = 0; 1340 1341 if (sc->sc_tx_timer > 0) { 1342 if (--sc->sc_tx_timer == 0) { 1343 printf("%s: device timeout\n", sc->sc_dev.dv_xname); 1344 ifp->if_flags &= ~IFF_UP; 1345 ipw_stop(ifp, 1); 1346 ifp->if_oerrors++; 1347 return; 1348 } 1349 ifp->if_timer = 1; 1350 } 1351 1352 ieee80211_watchdog(ifp); 1353} 1354 1355int 1356ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1357{ 1358 struct ipw_softc *sc = ifp->if_softc; 1359 struct ieee80211com *ic = &sc->sc_ic; 1360 struct ifaddr *ifa; 1361 struct ifreq *ifr; 1362 int s, error = 0; 1363 1364 s = splnet(); 1365 1366 switch (cmd) { 1367 case SIOCSIFADDR: 1368 ifa = (struct ifaddr *)data; 1369 ifp->if_flags |= IFF_UP; 1370#ifdef INET 1371 if (ifa->ifa_addr->sa_family == AF_INET) 1372 arp_ifinit(&ic->ic_ac, ifa); 1373#endif 1374 /* FALLTHROUGH */ 1375 case SIOCSIFFLAGS: 1376 if (ifp->if_flags & IFF_UP) { 1377 if (!(ifp->if_flags & IFF_RUNNING)) 1378 ipw_init(ifp); 1379 } else { 1380 if (ifp->if_flags & IFF_RUNNING) 1381 ipw_stop(ifp, 1); 1382 } 1383 break; 1384 1385 case SIOCADDMULTI: 1386 case SIOCDELMULTI: 1387 ifr = (struct ifreq *)data; 1388 error = (cmd == SIOCADDMULTI) ? 1389 ether_addmulti(ifr, &ic->ic_ac) : 1390 ether_delmulti(ifr, &ic->ic_ac); 1391 1392 if (error == ENETRESET) 1393 error = 0; 1394 break; 1395 1396 case SIOCG80211TXPOWER: 1397 /* 1398 * If the hardware radio transmitter switch is off, report a 1399 * tx power of IEEE80211_TXPOWER_MIN to indicate that radio 1400 * transmitter is killed. 1401 */ 1402 ((struct ieee80211_txpower *)data)->i_val = 1403 (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED) ? 1404 IEEE80211_TXPOWER_MIN : sc->sc_ic.ic_txpower; 1405 break; 1406 1407 default: 1408 error = ieee80211_ioctl(ifp, cmd, data); 1409 } 1410 1411 if (error == ENETRESET) { 1412 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1413 (IFF_UP | IFF_RUNNING)) 1414 ipw_init(ifp); 1415 error = 0; 1416 } 1417 1418 splx(s); 1419 return error; 1420} 1421 1422uint32_t 1423ipw_read_table1(struct ipw_softc *sc, uint32_t off) 1424{ 1425 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off)); 1426} 1427 1428void 1429ipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info) 1430{ 1431 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info); 1432} 1433 1434int 1435ipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len) 1436{ 1437 uint32_t addr, info; 1438 uint16_t count, size; 1439 uint32_t total; 1440 1441 /* addr[4] + count[2] + size[2] */ 1442 addr = MEM_READ_4(sc, sc->table2_base + off); 1443 info = MEM_READ_4(sc, sc->table2_base + off + 4); 1444 1445 count = info >> 16; 1446 size = info & 0xffff; 1447 total = count * size; 1448 1449 if (total > *len) { 1450 *len = total; 1451 return EINVAL; 1452 } 1453 *len = total; 1454 ipw_read_mem_1(sc, addr, buf, total); 1455 1456 return 0; 1457} 1458 1459void 1460ipw_stop_master(struct ipw_softc *sc) 1461{ 1462 uint32_t tmp; 1463 int ntries; 1464 1465 /* disable interrupts */ 1466 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1467 1468 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER); 1469 for (ntries = 0; ntries < 50; ntries++) { 1470 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED) 1471 break; 1472 DELAY(10); 1473 } 1474 if (ntries == 50) 1475 printf("%s: timeout waiting for master\n", 1476 sc->sc_dev.dv_xname); 1477 1478 tmp = CSR_READ_4(sc, IPW_CSR_RST); 1479 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_PRINCETON_RESET); 1480 1481 sc->flags &= ~IPW_FLAG_FW_INITED; 1482} 1483 1484int 1485ipw_reset(struct ipw_softc *sc) 1486{ 1487 uint32_t tmp; 1488 int ntries; 1489 1490 ipw_stop_master(sc); 1491 1492 /* move adapter to D0 state */ 1493 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1494 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT); 1495 1496 /* wait for clock stabilization */ 1497 for (ntries = 0; ntries < 1000; ntries++) { 1498 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY) 1499 break; 1500 DELAY(200); 1501 } 1502 if (ntries == 1000) 1503 return EIO; 1504 1505 tmp = CSR_READ_4(sc, IPW_CSR_RST); 1506 CSR_WRITE_4(sc, IPW_CSR_RST, tmp | IPW_RST_SW_RESET); 1507 1508 DELAY(10); 1509 1510 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1511 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_INIT); 1512 1513 return 0; 1514} 1515 1516int 1517ipw_load_ucode(struct ipw_softc *sc, u_char *uc, int size) 1518{ 1519 int ntries; 1520 1521 /* voodoo from the Intel Linux driver */ 1522 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1523 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1524 1525 MEM_WRITE_2(sc, 0x220000, 0x0703); 1526 MEM_WRITE_2(sc, 0x220000, 0x0707); 1527 1528 MEM_WRITE_1(sc, 0x210014, 0x72); 1529 MEM_WRITE_1(sc, 0x210014, 0x72); 1530 1531 MEM_WRITE_1(sc, 0x210000, 0x40); 1532 MEM_WRITE_1(sc, 0x210000, 0x00); 1533 MEM_WRITE_1(sc, 0x210000, 0x40); 1534 1535 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size); 1536 1537 MEM_WRITE_1(sc, 0x210000, 0x00); 1538 MEM_WRITE_1(sc, 0x210000, 0x00); 1539 MEM_WRITE_1(sc, 0x210000, 0x80); 1540 1541 MEM_WRITE_2(sc, 0x220000, 0x0703); 1542 MEM_WRITE_2(sc, 0x220000, 0x0707); 1543 1544 MEM_WRITE_1(sc, 0x210014, 0x72); 1545 MEM_WRITE_1(sc, 0x210014, 0x72); 1546 1547 MEM_WRITE_1(sc, 0x210000, 0x00); 1548 MEM_WRITE_1(sc, 0x210000, 0x80); 1549 1550 for (ntries = 0; ntries < 100; ntries++) { 1551 if (MEM_READ_1(sc, 0x210000) & 1) 1552 break; 1553 DELAY(1000); 1554 } 1555 if (ntries == 100) { 1556 printf("%s: timeout waiting for ucode to initialize\n", 1557 sc->sc_dev.dv_xname); 1558 return EIO; 1559 } 1560 1561 MEM_WRITE_4(sc, 0x3000e0, 0); 1562 1563 return 0; 1564} 1565 1566/* set of macros to handle unaligned little endian data in firmware image */ 1567#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 1568#define GETLE16(p) ((p)[0] | (p)[1] << 8) 1569int 1570ipw_load_firmware(struct ipw_softc *sc, u_char *fw, int size) 1571{ 1572 u_char *p, *end; 1573 uint32_t tmp, dst; 1574 uint16_t len; 1575 int error; 1576 1577 p = fw; 1578 end = fw + size; 1579 while (p < end) { 1580 if (p + 6 > end) 1581 return EINVAL; 1582 1583 dst = GETLE32(p); p += 4; 1584 len = GETLE16(p); p += 2; 1585 1586 if (p + len > end) 1587 return EINVAL; 1588 1589 ipw_write_mem_1(sc, dst, p, len); 1590 p += len; 1591 } 1592 1593 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK | 1594 IPW_IO_LED_OFF); 1595 1596 /* allow interrupts so we know when the firmware is inited */ 1597 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1598 1599 /* tell the adapter to initialize the firmware */ 1600 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1601 tmp = CSR_READ_4(sc, IPW_CSR_CTL); 1602 CSR_WRITE_4(sc, IPW_CSR_CTL, tmp | IPW_CTL_ALLOW_STANDBY); 1603 1604 /* wait at most one second for firmware initialization to complete */ 1605 if ((error = tsleep(sc, 0, "ipwinit", hz)) != 0) { 1606 printf("%s: timeout waiting for firmware initialization to " 1607 "complete\n", sc->sc_dev.dv_xname); 1608 return error; 1609 } 1610 1611 tmp = CSR_READ_4(sc, IPW_CSR_IO); 1612 CSR_WRITE_4(sc, IPW_CSR_IO, tmp | IPW_IO_GPIO1_MASK | 1613 IPW_IO_GPIO3_MASK); 1614 1615 return 0; 1616} 1617 1618int 1619ipw_read_firmware(struct ipw_softc *sc, struct ipw_firmware *fw) 1620{ 1621 const struct ipw_firmware_hdr *hdr; 1622 const char *name; 1623 size_t size; 1624 int error; 1625 1626 switch (sc->sc_ic.ic_opmode) { 1627 case IEEE80211_M_STA: 1628 name = "ipw-bss"; 1629 break; 1630#ifndef IEEE80211_STA_ONLY 1631 case IEEE80211_M_IBSS: 1632 name = "ipw-ibss"; 1633 break; 1634#endif 1635 case IEEE80211_M_MONITOR: 1636 name = "ipw-monitor"; 1637 break; 1638 default: 1639 /* should not get there */ 1640 return ENODEV; 1641 } 1642 if ((error = loadfirmware(name, &fw->data, &size)) != 0) 1643 return error; 1644 1645 if (size < sizeof (*hdr)) { 1646 error = EINVAL; 1647 goto fail; 1648 } 1649 hdr = (const struct ipw_firmware_hdr *)fw->data; 1650 fw->main_size = letoh32(hdr->main_size); 1651 fw->ucode_size = letoh32(hdr->ucode_size); 1652 1653 if (size < sizeof (*hdr) + fw->main_size + fw->ucode_size) { 1654 error = EINVAL; 1655 goto fail; 1656 } 1657 fw->main = fw->data + sizeof (*hdr); 1658 fw->ucode = fw->main + fw->main_size; 1659 1660 return 0; 1661 1662fail: free(fw->data, M_DEVBUF); 1663 return error; 1664} 1665 1666void 1667ipw_scan(void *arg1, void *arg2) 1668{ 1669 struct ipw_softc *sc = arg1; 1670 struct ifnet *ifp = &sc->sc_ic.ic_if; 1671 struct ipw_scan_options scan; 1672 uint8_t ssid[IEEE80211_NWID_LEN]; 1673 int error; 1674 1675 /* 1676 * Firmware has a bug and does not honour the ``do not associate 1677 * after scan'' bit in the scan command. To prevent the firmware 1678 * from associating after the scan, we set the ESSID to something 1679 * unlikely to be used by a real AP. 1680 * XXX would setting the desired BSSID to a multicast address work? 1681 */ 1682 memset(ssid, '\r', sizeof ssid); 1683 error = ipw_cmd(sc, IPW_CMD_SET_ESSID, ssid, sizeof ssid); 1684 if (error != 0) 1685 goto fail; 1686 1687 /* no mandatory BSSID */ 1688 DPRINTF(("Setting mandatory BSSID to null\n")); 1689 error = ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0); 1690 if (error != 0) 1691 goto fail; 1692 1693 scan.flags = htole32(IPW_SCAN_DO_NOT_ASSOCIATE | IPW_SCAN_MIXED_CELL); 1694 scan.channels = htole32(0x3fff); /* scan channels 1-14 */ 1695 DPRINTF(("Setting scan options to 0x%x\n", letoh32(scan.flags))); 1696 error = ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &scan, sizeof scan); 1697 if (error != 0) 1698 goto fail; 1699 1700 /* start scanning */ 1701 DPRINTF(("Enabling adapter\n")); 1702 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1703 if (error != 0) 1704 goto fail; 1705 1706 return; 1707fail: 1708 printf("%s: scan request failed (error=%d)\n", sc->sc_dev.dv_xname, 1709 error); 1710 ieee80211_end_scan(ifp); 1711} 1712 1713void 1714ipw_auth_and_assoc(void *arg1, void *arg2) 1715{ 1716 struct ipw_softc *sc = arg1; 1717 struct ieee80211com *ic = &sc->sc_ic; 1718 struct ieee80211_node *ni = ic->ic_bss; 1719 struct ipw_scan_options scan; 1720 struct ipw_security security; 1721 struct ipw_assoc_req assoc; 1722 uint32_t data; 1723 uint8_t chan; 1724 int s, error; 1725 1726 DPRINTF(("Disabling adapter\n")); 1727 error = ipw_cmd(sc, IPW_CMD_DISABLE, NULL, 0); 1728 if (error != 0) 1729 goto fail; 1730#if 1 1731 /* wait at most one second for card to be disabled */ 1732 s = splnet(); 1733 error = tsleep(sc, 0, "ipwdis", hz); 1734 splx(s); 1735 if (error != 0) { 1736 printf("%s: timeout waiting for disabled state\n", 1737 sc->sc_dev.dv_xname); 1738 goto fail; 1739 } 1740#else 1741 /* Intel's Linux driver polls for the DISABLED state instead.. */ 1742 for (ntries = 0; ntries < 1000; ntries++) { 1743 if (ipw_read_table1(sc, IPW_INFO_CARD_DISABLED) == 1) 1744 break; 1745 DELAY(10); 1746 } 1747 if (ntries == 1000) { 1748 printf("%s: timeout waiting for disabled state\n", 1749 sc->sc_dev.dv_xname); 1750 goto fail; 1751 } 1752#endif 1753 1754 bzero(&security, sizeof security); 1755 security.authmode = IPW_AUTH_OPEN; 1756 security.ciphers = htole32(IPW_CIPHER_NONE); 1757 DPRINTF(("Setting authmode to %u\n", security.authmode)); 1758 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFORMATION, &security, 1759 sizeof security); 1760 if (error != 0) 1761 goto fail; 1762 1763#ifdef IPW_DEBUG 1764 if (ipw_debug > 0) { 1765 printf("Setting ESSID to "); 1766 ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 1767 printf("\n"); 1768 } 1769#endif 1770 error = ipw_cmd(sc, IPW_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); 1771 if (error != 0) 1772 goto fail; 1773 1774 DPRINTF(("Setting BSSID to %s\n", ether_sprintf(ni->ni_bssid))); 1775 error = ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, ni->ni_bssid, 1776 IEEE80211_ADDR_LEN); 1777 if (error != 0) 1778 goto fail; 1779 1780 data = htole32((ic->ic_flags & (IEEE80211_F_WEPON | 1781 IEEE80211_F_RSNON)) ? IPW_PRIVACYON : 0); 1782 DPRINTF(("Setting privacy flags to 0x%x\n", letoh32(data))); 1783 error = ipw_cmd(sc, IPW_CMD_SET_PRIVACY_FLAGS, &data, sizeof data); 1784 if (error != 0) 1785 goto fail; 1786 1787 /* let firmware set the capinfo, lintval, and bssid fixed fields */ 1788 bzero(&assoc, sizeof assoc); 1789 if (ic->ic_flags & IEEE80211_F_RSNON) { 1790 uint8_t *frm = assoc.optie; 1791 1792 /* tell firmware to add a WPA or RSN IE in (Re)Assoc req */ 1793 if (ni->ni_rsnprotos & IEEE80211_PROTO_RSN) 1794 frm = ieee80211_add_rsn(frm, ic, ni); 1795 else if (ni->ni_rsnprotos & IEEE80211_PROTO_WPA) 1796 frm = ieee80211_add_wpa(frm, ic, ni); 1797 assoc.optie_len = htole32(frm - assoc.optie); 1798 } 1799 DPRINTF(("Preparing assocation request (optional IE length=%d)\n", 1800 letoh32(assoc.optie_len))); 1801 error = ipw_cmd(sc, IPW_CMD_SET_ASSOC_REQ, &assoc, sizeof assoc); 1802 if (error != 0) 1803 goto fail; 1804 1805 scan.flags = htole32(IPW_SCAN_MIXED_CELL); 1806 chan = ieee80211_chan2ieee(ic, ni->ni_chan); 1807 scan.channels = htole32(1 << (chan - 1)); 1808 DPRINTF(("Setting scan options to 0x%x\n", letoh32(scan.flags))); 1809 error = ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &scan, sizeof scan); 1810 if (error != 0) 1811 goto fail; 1812 1813 /* trigger scan+association */ 1814 DPRINTF(("Enabling adapter\n")); 1815 error = ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1816 if (error != 0) 1817 goto fail; 1818 1819 return; 1820fail: 1821 printf("%s: association failed (error=%d)\n", sc->sc_dev.dv_xname, 1822 error); 1823 ieee80211_begin_scan(&ic->ic_if); 1824} 1825 1826int 1827ipw_config(struct ipw_softc *sc) 1828{ 1829 struct ieee80211com *ic = &sc->sc_ic; 1830 struct ifnet *ifp = &ic->ic_if; 1831 struct ipw_configuration config; 1832 uint32_t data; 1833 int error; 1834 1835 switch (ic->ic_opmode) { 1836 case IEEE80211_M_STA: 1837 data = htole32(IPW_MODE_BSS); 1838 break; 1839#ifndef IEEE80211_STA_ONLY 1840 case IEEE80211_M_IBSS: 1841 data = htole32(IPW_MODE_IBSS); 1842 break; 1843#endif 1844 case IEEE80211_M_MONITOR: 1845 data = htole32(IPW_MODE_MONITOR); 1846 break; 1847 default: 1848 /* should not get there */ 1849 return ENODEV; 1850 } 1851 DPRINTF(("Setting mode to %u\n", letoh32(data))); 1852 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data); 1853 if (error != 0) 1854 return error; 1855 1856 if ( 1857#ifndef IEEE80211_STA_ONLY 1858 ic->ic_opmode == IEEE80211_M_IBSS || 1859#endif 1860 ic->ic_opmode == IEEE80211_M_MONITOR) { 1861 data = htole32(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 1862 DPRINTF(("Setting channel to %u\n", letoh32(data))); 1863 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data); 1864 if (error != 0) 1865 return error; 1866 } 1867 1868 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 1869 DPRINTF(("Enabling adapter\n")); 1870 return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1871 } 1872 1873 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 1874 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 1875 error = ipw_cmd(sc, IPW_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 1876 IEEE80211_ADDR_LEN); 1877 if (error != 0) 1878 return error; 1879 1880 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK | 1881 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1X_ENABLE); 1882#ifndef IEEE80211_STA_ONLY 1883 if (ic->ic_opmode == IEEE80211_M_IBSS) 1884 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START); 1885#endif 1886 if (ifp->if_flags & IFF_PROMISC) 1887 config.flags |= htole32(IPW_CFG_PROMISCUOUS); 1888 config.bss_chan = htole32(0x3fff); /* channels 1-14 */ 1889 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */ 1890 DPRINTF(("Setting configuration 0x%x\n", config.flags)); 1891 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config); 1892 if (error != 0) 1893 return error; 1894 1895 data = htole32(ic->ic_rtsthreshold); 1896 DPRINTF(("Setting RTS threshold to %u\n", letoh32(data))); 1897 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 1898 if (error != 0) 1899 return error; 1900 1901 data = htole32(ic->ic_fragthreshold); 1902 DPRINTF(("Setting frag threshold to %u\n", letoh32(data))); 1903 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 1904 if (error != 0) 1905 return error; 1906 1907 data = htole32(0x3); /* 1, 2 */ 1908 DPRINTF(("Setting basic tx rates to 0x%x\n", letoh32(data))); 1909 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data); 1910 if (error != 0) 1911 return error; 1912 1913 data = htole32(0xf); /* 1, 2, 5.5, 11 */ 1914 DPRINTF(("Setting tx rates to 0x%x\n", letoh32(data))); 1915 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data); 1916 if (error != 0) 1917 return error; 1918 1919 data = htole32(0xf); /* 1, 2, 5.5, 11 */ 1920 DPRINTF(("Setting MSDU tx rates to 0x%x\n", letoh32(data))); 1921 error = ipw_cmd(sc, IPW_CMD_SET_MSDU_TX_RATES, &data, sizeof data); 1922 if (error != 0) 1923 return error; 1924 1925 data = htole32(IPW_POWER_MODE_CAM); 1926 DPRINTF(("Setting power mode to %u\n", letoh32(data))); 1927 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data); 1928 if (error != 0) 1929 return error; 1930 1931#ifndef IEEE80211_STA_ONLY 1932 if (ic->ic_opmode == IEEE80211_M_IBSS) { 1933 data = htole32(32); /* default value */ 1934 DPRINTF(("Setting tx power index to %u\n", letoh32(data))); 1935 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data, 1936 sizeof data); 1937 if (error != 0) 1938 return error; 1939 1940 data = htole32(ic->ic_lintval); 1941 DPRINTF(("Setting beacon interval to %u\n", letoh32(data))); 1942 error = ipw_cmd(sc, IPW_CMD_SET_BEACON_INTERVAL, &data, 1943 sizeof data); 1944 if (error != 0) 1945 return error; 1946 } 1947#endif 1948 return 0; 1949} 1950 1951int 1952ipw_init(struct ifnet *ifp) 1953{ 1954 struct ipw_softc *sc = ifp->if_softc; 1955 struct ieee80211com *ic = &sc->sc_ic; 1956 struct ipw_firmware fw; 1957 int error; 1958 1959 ipw_stop(ifp, 0); 1960 1961 if ((error = ipw_reset(sc)) != 0) { 1962 printf("%s: could not reset adapter\n", sc->sc_dev.dv_xname); 1963 goto fail1; 1964 } 1965 1966 if ((error = ipw_read_firmware(sc, &fw)) != NULL) { 1967 printf("%s: error %d, could not read firmware\n", 1968 sc->sc_dev.dv_xname, error); 1969 goto fail1; 1970 } 1971 if ((error = ipw_load_ucode(sc, fw.ucode, fw.ucode_size)) != 0) { 1972 printf("%s: could not load microcode\n", sc->sc_dev.dv_xname); 1973 goto fail2; 1974 } 1975 1976 ipw_stop_master(sc); 1977 1978 /* 1979 * Setup tx, rx and status rings. 1980 */ 1981 CSR_WRITE_4(sc, IPW_CSR_TX_BD_BASE, sc->tbd_map->dm_segs[0].ds_addr); 1982 CSR_WRITE_4(sc, IPW_CSR_TX_BD_SIZE, IPW_NTBD); 1983 CSR_WRITE_4(sc, IPW_CSR_TX_READ_INDEX, 0); 1984 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE_INDEX, 0); 1985 sc->txold = IPW_NTBD - 1; /* latest bd index ack by firmware */ 1986 sc->txcur = 0; /* bd index to write to */ 1987 sc->txfree = IPW_NTBD - 2; 1988 1989 CSR_WRITE_4(sc, IPW_CSR_RX_BD_BASE, sc->rbd_map->dm_segs[0].ds_addr); 1990 CSR_WRITE_4(sc, IPW_CSR_RX_BD_SIZE, IPW_NRBD); 1991 CSR_WRITE_4(sc, IPW_CSR_RX_READ_INDEX, 0); 1992 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE_INDEX, IPW_NRBD - 1); 1993 sc->rxcur = IPW_NRBD - 1; /* latest bd index I've read */ 1994 1995 CSR_WRITE_4(sc, IPW_CSR_RX_STATUS_BASE, 1996 sc->status_map->dm_segs[0].ds_addr); 1997 1998 if ((error = ipw_load_firmware(sc, fw.main, fw.main_size)) != 0) { 1999 printf("%s: could not load firmware\n", sc->sc_dev.dv_xname); 2000 goto fail2; 2001 } 2002 sc->flags |= IPW_FLAG_FW_INITED; 2003 free(fw.data, M_DEVBUF); 2004 2005 /* retrieve information tables base addresses */ 2006 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE); 2007 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE); 2008 2009 ipw_write_table1(sc, IPW_INFO_LOCK, 0); 2010 2011 if ((error = ipw_config(sc)) != 0) { 2012 printf("%s: device configuration failed\n", 2013 sc->sc_dev.dv_xname); 2014 goto fail2; 2015 } 2016 2017 ifp->if_flags &= ~IFF_OACTIVE; 2018 ifp->if_flags |= IFF_RUNNING; 2019 2020 if (ic->ic_opmode != IEEE80211_M_MONITOR) 2021 ieee80211_begin_scan(ifp); 2022 else 2023 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2024 2025 return 0; 2026 2027fail2: free(fw.data, M_DEVBUF); 2028fail1: ipw_stop(ifp, 0); 2029 return error; 2030} 2031 2032void 2033ipw_stop(struct ifnet *ifp, int disable) 2034{ 2035 struct ipw_softc *sc = ifp->if_softc; 2036 struct ieee80211com *ic = &sc->sc_ic; 2037 int i; 2038 2039 ipw_stop_master(sc); 2040 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET); 2041 2042 ifp->if_timer = 0; 2043 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2044 2045 /* 2046 * Release tx buffers. 2047 */ 2048 for (i = 0; i < IPW_NTBD; i++) 2049 ipw_release_sbd(sc, &sc->stbd_list[i]); 2050 2051 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2052} 2053 2054void 2055ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2056 bus_size_t count) 2057{ 2058 for (; count > 0; offset++, datap++, count--) { 2059 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2060 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3)); 2061 } 2062} 2063 2064void 2065ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2066 bus_size_t count) 2067{ 2068 for (; count > 0; offset++, datap++, count--) { 2069 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2070 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap); 2071 } 2072} 2073 2074struct cfdriver ipw_cd = { 2075 NULL, "ipw", DV_IFNET 2076}; 2077