if_ipw.c revision 1.41
1/* $OpenBSD: if_ipw.c,v 1.41 2005/02/19 13:08:55 damien Exp $ */ 2 3/*- 4 * Copyright (c) 2004, 2005 5 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30/*- 31 * Intel(R) PRO/Wireless 2100 MiniPCI driver 32 * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 33 */ 34 35#include "bpfilter.h" 36 37#include <sys/param.h> 38#include <sys/sockio.h> 39#include <sys/sysctl.h> 40#include <sys/mbuf.h> 41#include <sys/kernel.h> 42#include <sys/socket.h> 43#include <sys/systm.h> 44#include <sys/malloc.h> 45#include <sys/conf.h> 46#include <sys/device.h> 47 48#include <machine/bus.h> 49#include <machine/endian.h> 50#include <machine/intr.h> 51 52#include <dev/pci/pcireg.h> 53#include <dev/pci/pcivar.h> 54#include <dev/pci/pcidevs.h> 55 56#if NBPFILTER > 0 57#include <net/bpf.h> 58#endif 59#include <net/if.h> 60#include <net/if_arp.h> 61#include <net/if_dl.h> 62#include <net/if_media.h> 63#include <net/if_types.h> 64 65#include <netinet/in.h> 66#include <netinet/in_systm.h> 67#include <netinet/in_var.h> 68#include <netinet/if_ether.h> 69#include <netinet/ip.h> 70 71#include <net80211/ieee80211_var.h> 72#include <net80211/ieee80211_radiotap.h> 73 74#include <dev/pci/if_ipwreg.h> 75#include <dev/pci/if_ipwvar.h> 76 77static const struct ieee80211_rateset ipw_rateset_11b = 78 { 4, { 2, 4, 11, 22 } }; 79 80int ipw_match(struct device *, void *, void *); 81void ipw_attach(struct device *, struct device *, void *); 82int ipw_detach(struct device *, int); 83void ipw_power(int, void *); 84int ipw_dma_alloc(struct ipw_softc *); 85void ipw_release(struct ipw_softc *); 86int ipw_media_change(struct ifnet *); 87void ipw_media_status(struct ifnet *, struct ifmediareq *); 88int ipw_newstate(struct ieee80211com *, enum ieee80211_state, int); 89u_int16_t ipw_read_prom_word(struct ipw_softc *, u_int8_t); 90void ipw_scan_result(struct ipw_softc *); 91void ipw_command_intr(struct ipw_softc *, struct ipw_soft_buf *); 92void ipw_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *); 93void ipw_data_intr(struct ipw_softc *, struct ipw_status *, 94 struct ipw_soft_bd *, struct ipw_soft_buf *); 95void ipw_notification_intr(struct ipw_softc *, struct ipw_soft_buf *); 96void ipw_rx_intr(struct ipw_softc *); 97void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *); 98void ipw_tx_intr(struct ipw_softc *); 99int ipw_intr(void *); 100int ipw_cmd(struct ipw_softc *, u_int32_t, void *, u_int32_t); 101int ipw_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *); 102void ipw_start(struct ifnet *); 103void ipw_watchdog(struct ifnet *); 104int ipw_get_table1(struct ipw_softc *, u_int32_t *); 105int ipw_get_radio(struct ipw_softc *, int *); 106int ipw_ioctl(struct ifnet *, u_long, caddr_t); 107u_int32_t ipw_read_table1(struct ipw_softc *, u_int32_t); 108void ipw_write_table1(struct ipw_softc *, u_int32_t, u_int32_t); 109int ipw_read_table2(struct ipw_softc *, u_int32_t, void *, u_int32_t *); 110void ipw_stop_master(struct ipw_softc *); 111int ipw_reset(struct ipw_softc *); 112int ipw_load_ucode(struct ipw_softc *, u_char *, int); 113int ipw_load_firmware(struct ipw_softc *, u_char *, int); 114int ipw_read_firmware(struct ipw_softc *, struct ipw_firmware *); 115int ipw_config(struct ipw_softc *); 116int ipw_init(struct ifnet *); 117void ipw_stop(struct ifnet *, int); 118void ipw_read_mem_1(struct ipw_softc *, bus_size_t, u_int8_t *, bus_size_t); 119void ipw_write_mem_1(struct ipw_softc *, bus_size_t, u_int8_t *, bus_size_t); 120 121static __inline u_int8_t MEM_READ_1(struct ipw_softc *sc, u_int32_t addr) 122{ 123 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, addr); 124 return CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA); 125} 126 127static __inline u_int32_t MEM_READ_4(struct ipw_softc *sc, u_int32_t addr) 128{ 129 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, addr); 130 return CSR_READ_4(sc, IPW_CSR_INDIRECT_DATA); 131} 132 133#ifdef IPW_DEBUG 134#define DPRINTF(x) if (ipw_debug > 0) printf x 135#define DPRINTFN(n, x) if (ipw_debug >= (n)) printf x 136int ipw_debug = 0; 137#else 138#define DPRINTF(x) 139#define DPRINTFN(n, x) 140#endif 141 142struct cfattach ipw_ca = { 143 sizeof (struct ipw_softc), ipw_match, ipw_attach, ipw_detach 144}; 145 146int 147ipw_match(struct device *parent, void *match, void *aux) 148{ 149 struct pci_attach_args *pa = aux; 150 151 if (PCI_VENDOR (pa->pa_id) == PCI_VENDOR_INTEL && 152 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_2100_3B) 153 return 1; 154 155 return 0; 156} 157 158/* Base Address Register */ 159#define IPW_PCI_BAR0 0x10 160 161void 162ipw_attach(struct device *parent, struct device *self, void *aux) 163{ 164 struct ipw_softc *sc = (struct ipw_softc *)self; 165 struct ieee80211com *ic = &sc->sc_ic; 166 struct ifnet *ifp = &ic->ic_if; 167 struct pci_attach_args *pa = aux; 168 const char *intrstr; 169 bus_space_tag_t memt; 170 bus_space_handle_t memh; 171 bus_addr_t base; 172 pci_intr_handle_t ih; 173 pcireg_t data; 174 u_int16_t val; 175 int error, i; 176 177 sc->sc_pct = pa->pa_pc; 178 sc->sc_pcitag = pa->pa_tag, 179 180 /* clear device specific PCI configuration register 0x41 */ 181 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 182 data &= ~0x0000ff00; 183 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 184 185 /* enable bus-mastering */ 186 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 187 data |= PCI_COMMAND_MASTER_ENABLE; 188 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 189 190 /* map the register window */ 191 error = pci_mapreg_map(pa, IPW_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 192 PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, &base, &sc->sc_sz, 0); 193 if (error != 0) { 194 printf(": could not map memory space\n"); 195 return; 196 } 197 198 sc->sc_st = memt; 199 sc->sc_sh = memh; 200 sc->sc_dmat = pa->pa_dmat; 201 202 /* disable interrupts */ 203 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 204 205 if (pci_intr_map(pa, &ih) != 0) { 206 printf(": could not map interrupt\n"); 207 return; 208 } 209 210 intrstr = pci_intr_string(sc->sc_pct, ih); 211 sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, ipw_intr, sc, 212 sc->sc_dev.dv_xname); 213 if (sc->sc_ih == NULL) { 214 printf(": could not establish interrupt"); 215 if (intrstr != NULL) 216 printf(" at %s", intrstr); 217 printf("\n"); 218 return; 219 } 220 printf(": %s", intrstr); 221 222 if (ipw_reset(sc) != 0) { 223 printf(": could not reset adapter\n"); 224 return; 225 } 226 227 if (ipw_dma_alloc(sc) != 0) { 228 printf(": failed to allocate DMA resources\n"); 229 return; 230 } 231 232 ic->ic_phytype = IEEE80211_T_DS; 233 ic->ic_opmode = IEEE80211_M_STA; 234 ic->ic_state = IEEE80211_S_INIT; 235 236 /* set device capabilities */ 237 ic->ic_caps = IEEE80211_C_IBSS | IEEE80211_C_MONITOR | 238 IEEE80211_C_PMGT | IEEE80211_C_TXPMGT | IEEE80211_C_WEP | 239 IEEE80211_C_SHPREAMBLE; 240 241 /* read MAC address from EEPROM */ 242 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0); 243 ic->ic_myaddr[0] = val >> 8; 244 ic->ic_myaddr[1] = val & 0xff; 245 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1); 246 ic->ic_myaddr[2] = val >> 8; 247 ic->ic_myaddr[3] = val & 0xff; 248 val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2); 249 ic->ic_myaddr[4] = val >> 8; 250 ic->ic_myaddr[5] = val & 0xff; 251 252 printf(", address %s\n", ether_sprintf(ic->ic_myaddr)); 253 254 /* set supported .11b rates */ 255 ic->ic_sup_rates[IEEE80211_MODE_11B] = ipw_rateset_11b; 256 257 /* set supported .11b channels (1 through 14) */ 258 for (i = 1; i <= 14; i++) { 259 ic->ic_channels[i].ic_freq = 260 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 261 ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 262 } 263 264 /* default to authmode OPEN */ 265 sc->authmode = IEEE80211_AUTH_OPEN; 266 267 /* IBSS channel undefined for now */ 268 ic->ic_ibss_chan = &ic->ic_channels[0]; 269 270 ifp->if_softc = sc; 271 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 272 ifp->if_init = ipw_init; 273 ifp->if_ioctl = ipw_ioctl; 274 ifp->if_start = ipw_start; 275 ifp->if_watchdog = ipw_watchdog; 276 IFQ_SET_READY(&ifp->if_snd); 277 bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); 278 279 if_attach(ifp); 280 ieee80211_ifattach(ifp); 281 /* override state transition machine */ 282 sc->sc_newstate = ic->ic_newstate; 283 ic->ic_newstate = ipw_newstate; 284 ieee80211_media_init(ifp, ipw_media_change, ipw_media_status); 285 286 sc->powerhook = powerhook_establish(ipw_power, sc); 287 288#if NBPFILTER > 0 289 bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, 290 sizeof (struct ieee80211_frame) + 64); 291 292 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 293 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 294 sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT); 295 296 sc->sc_txtap_len = sizeof sc->sc_txtapu; 297 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 298 sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT); 299#endif 300} 301 302int 303ipw_detach(struct device* self, int flags) 304{ 305 struct ipw_softc *sc = (struct ipw_softc *)self; 306 struct ifnet *ifp = &sc->sc_ic.ic_if; 307 308 ipw_stop(ifp, 1); 309 310#if NBPFILTER > 0 311 bpfdetach(ifp); 312#endif 313 ieee80211_ifdetach(ifp); 314 if_detach(ifp); 315 316 ipw_release(sc); 317 318 if (sc->sc_ih != NULL) { 319 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 320 sc->sc_ih = NULL; 321 } 322 323 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 324 325 return 0; 326} 327 328void 329ipw_power(int why, void *arg) 330{ 331 struct ipw_softc *sc = arg; 332 struct ifnet *ifp; 333 pcireg_t data; 334 335 if (why != PWR_RESUME) 336 return; 337 338 /* clear device specific PCI configuration register 0x41 */ 339 data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 340 data &= ~0x0000ff00; 341 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 342 343 ifp = &sc->sc_ic.ic_if; 344 if (ifp->if_flags & IFF_UP) { 345 ifp->if_init(ifp); 346 if (ifp->if_flags & IFF_RUNNING) 347 ifp->if_start(ifp); 348 } 349} 350 351int 352ipw_dma_alloc(struct ipw_softc *sc) 353{ 354 struct ipw_soft_bd *sbd; 355 struct ipw_soft_hdr *shdr; 356 struct ipw_soft_buf *sbuf; 357 int i, nsegs, error; 358 359 /* 360 * Allocate and map tx ring 361 */ 362 error = bus_dmamap_create(sc->sc_dmat, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, 363 BUS_DMA_NOWAIT, &sc->tbd_map); 364 if (error != 0) { 365 printf("%s: could not create tx ring DMA map\n", 366 sc->sc_dev.dv_xname); 367 goto fail; 368 } 369 370 error = bus_dmamem_alloc(sc->sc_dmat, IPW_TBD_SZ, PAGE_SIZE, 0, 371 &sc->tbd_seg, 1, &nsegs, BUS_DMA_NOWAIT); 372 if (error != 0) { 373 printf("%s: could not allocate tx ring DMA memory\n", 374 sc->sc_dev.dv_xname); 375 goto fail; 376 } 377 378 error = bus_dmamem_map(sc->sc_dmat, &sc->tbd_seg, nsegs, IPW_TBD_SZ, 379 (caddr_t *)&sc->tbd_list, BUS_DMA_NOWAIT); 380 if (error != 0) { 381 printf("%s: could not map tx ring DMA memory\n", 382 sc->sc_dev.dv_xname); 383 goto fail; 384 } 385 386 error = bus_dmamap_load(sc->sc_dmat, sc->tbd_map, sc->tbd_list, 387 IPW_TBD_SZ, NULL, BUS_DMA_NOWAIT); 388 if (error != 0) { 389 printf("%s: could not load tx ring DMA map\n", 390 sc->sc_dev.dv_xname); 391 goto fail; 392 } 393 394 /* 395 * Allocate and map rx ring 396 */ 397 error = bus_dmamap_create(sc->sc_dmat, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, 398 BUS_DMA_NOWAIT, &sc->rbd_map); 399 if (error != 0) { 400 printf("%s: could not create rx ring DMA map\n", 401 sc->sc_dev.dv_xname); 402 goto fail; 403 } 404 405 error = bus_dmamem_alloc(sc->sc_dmat, IPW_RBD_SZ, PAGE_SIZE, 0, 406 &sc->rbd_seg, 1, &nsegs, BUS_DMA_NOWAIT); 407 if (error != 0) { 408 printf("%s: could not allocate rx ring DMA memory\n", 409 sc->sc_dev.dv_xname); 410 goto fail; 411 } 412 413 error = bus_dmamem_map(sc->sc_dmat, &sc->rbd_seg, nsegs, IPW_RBD_SZ, 414 (caddr_t *)&sc->rbd_list, BUS_DMA_NOWAIT); 415 if (error != 0) { 416 printf("%s: could not map rx ring DMA memory\n", 417 sc->sc_dev.dv_xname); 418 goto fail; 419 } 420 421 error = bus_dmamap_load(sc->sc_dmat, sc->rbd_map, sc->rbd_list, 422 IPW_RBD_SZ, NULL, BUS_DMA_NOWAIT); 423 if (error != 0) { 424 printf("%s: could not load tx ring DMA map\n", 425 sc->sc_dev.dv_xname); 426 goto fail; 427 } 428 429 /* 430 * Allocate and map status ring 431 */ 432 error = bus_dmamap_create(sc->sc_dmat, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 433 0, BUS_DMA_NOWAIT, &sc->status_map); 434 if (error != 0) { 435 printf("%s: could not create status ring DMA map\n", 436 sc->sc_dev.dv_xname); 437 goto fail; 438 } 439 440 error = bus_dmamem_alloc(sc->sc_dmat, IPW_STATUS_SZ, PAGE_SIZE, 0, 441 &sc->status_seg, 1, &nsegs, BUS_DMA_NOWAIT); 442 if (error != 0) { 443 printf("%s: could not allocate status ring DMA memory\n", 444 sc->sc_dev.dv_xname); 445 goto fail; 446 } 447 448 error = bus_dmamem_map(sc->sc_dmat, &sc->status_seg, nsegs, 449 IPW_STATUS_SZ, (caddr_t *)&sc->status_list, BUS_DMA_NOWAIT); 450 if (error != 0) { 451 printf("%s: could not map status ring DMA memory\n", 452 sc->sc_dev.dv_xname); 453 goto fail; 454 } 455 456 error = bus_dmamap_load(sc->sc_dmat, sc->status_map, sc->status_list, 457 IPW_STATUS_SZ, NULL, BUS_DMA_NOWAIT); 458 if (error != 0) { 459 printf("%s: could not load status ring DMA map\n", 460 sc->sc_dev.dv_xname); 461 goto fail; 462 } 463 464 /* 465 * Allocate command DMA map 466 */ 467 error = bus_dmamap_create(sc->sc_dmat, sizeof (struct ipw_cmd), 1, 468 sizeof (struct ipw_cmd), 0, BUS_DMA_NOWAIT, &sc->cmd_map); 469 if (error != 0) { 470 printf("%s: could not create command DMA map\n", 471 sc->sc_dev.dv_xname); 472 goto fail; 473 } 474 475 /* 476 * Allocate headers DMA maps 477 */ 478 SLIST_INIT(&sc->free_shdr); 479 for (i = 0; i < IPW_NDATA; i++) { 480 shdr = &sc->shdr_list[i]; 481 error = bus_dmamap_create(sc->sc_dmat, sizeof (struct ipw_hdr), 482 1, sizeof (struct ipw_hdr), 0, BUS_DMA_NOWAIT, &shdr->map); 483 if (error != 0) { 484 printf("%s: could not create header DMA map\n", 485 sc->sc_dev.dv_xname); 486 goto fail; 487 } 488 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 489 } 490 491 /* 492 * Allocate tx buffers DMA maps 493 */ 494 SLIST_INIT(&sc->free_sbuf); 495 for (i = 0; i < IPW_NDATA; i++) { 496 sbuf = &sc->tx_sbuf_list[i]; 497 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IPW_MAX_NSEG, 498 MCLBYTES, 0, BUS_DMA_NOWAIT, &sbuf->map); 499 if (error != 0) { 500 printf("%s: could not create tx DMA map\n", 501 sc->sc_dev.dv_xname); 502 goto fail; 503 } 504 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 505 } 506 507 /* 508 * Initialize tx ring 509 */ 510 for (i = 0; i < IPW_NTBD; i++) { 511 sbd = &sc->stbd_list[i]; 512 sbd->bd = &sc->tbd_list[i]; 513 sbd->type = IPW_SBD_TYPE_NOASSOC; 514 } 515 516 /* 517 * Pre-allocate rx buffers and DMA maps 518 */ 519 for (i = 0; i < IPW_NRBD; i++) { 520 sbd = &sc->srbd_list[i]; 521 sbuf = &sc->rx_sbuf_list[i]; 522 sbd->bd = &sc->rbd_list[i]; 523 524 MGETHDR(sbuf->m, M_DONTWAIT, MT_DATA); 525 if (sbuf->m == NULL) { 526 printf("%s: could not allocate rx mbuf\n", 527 sc->sc_dev.dv_xname); 528 error = ENOMEM; 529 goto fail; 530 } 531 532 MCLGET(sbuf->m, M_DONTWAIT); 533 if (!(sbuf->m->m_flags & M_EXT)) { 534 m_freem(sbuf->m); 535 printf("%s: could not allocate rx mbuf cluster\n", 536 sc->sc_dev.dv_xname); 537 error = ENOMEM; 538 goto fail; 539 } 540 541 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 542 0, BUS_DMA_NOWAIT, &sbuf->map); 543 if (error != 0) { 544 printf("%s: could not create rx DMA map\n", 545 sc->sc_dev.dv_xname); 546 goto fail; 547 } 548 549 error = bus_dmamap_load(sc->sc_dmat, sbuf->map, 550 mtod(sbuf->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); 551 if (error != 0) { 552 printf("%s: could not map rx DMA memory\n", 553 sc->sc_dev.dv_xname); 554 goto fail; 555 } 556 557 sbd->type = IPW_SBD_TYPE_DATA; 558 sbd->priv = sbuf; 559 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[0].ds_addr); 560 sbd->bd->len = htole32(MCLBYTES); 561 } 562 563 bus_dmamap_sync(sc->sc_dmat, sc->rbd_map, 0, IPW_RBD_SZ, 564 BUS_DMASYNC_PREWRITE); 565 566 return 0; 567 568fail: ipw_release(sc); 569 return error; 570} 571 572void 573ipw_release(struct ipw_softc *sc) 574{ 575 struct ipw_soft_buf *sbuf; 576 int i; 577 578 if (sc->tbd_map != NULL) { 579 if (sc->tbd_list != NULL) { 580 bus_dmamap_unload(sc->sc_dmat, sc->tbd_map); 581 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->tbd_list, 582 IPW_TBD_SZ); 583 bus_dmamem_free(sc->sc_dmat, &sc->tbd_seg, 1); 584 } 585 bus_dmamap_destroy(sc->sc_dmat, sc->tbd_map); 586 } 587 588 if (sc->rbd_map != NULL) { 589 if (sc->rbd_list != NULL) { 590 bus_dmamap_unload(sc->sc_dmat, sc->rbd_map); 591 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->rbd_list, 592 IPW_RBD_SZ); 593 bus_dmamem_free(sc->sc_dmat, &sc->rbd_seg, 1); 594 } 595 bus_dmamap_destroy(sc->sc_dmat, sc->rbd_map); 596 } 597 598 if (sc->status_map != NULL) { 599 if (sc->status_list != NULL) { 600 bus_dmamap_unload(sc->sc_dmat, sc->status_map); 601 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->status_list, 602 IPW_RBD_SZ); 603 bus_dmamem_free(sc->sc_dmat, &sc->status_seg, 1); 604 } 605 bus_dmamap_destroy(sc->sc_dmat, sc->status_map); 606 } 607 608 if (sc->cmd_map != NULL) 609 bus_dmamap_destroy(sc->sc_dmat, sc->cmd_map); 610 611 for (i = 0; i < IPW_NDATA; i++) 612 bus_dmamap_destroy(sc->sc_dmat, sc->shdr_list[i].map); 613 614 for (i = 0; i < IPW_NDATA; i++) 615 bus_dmamap_destroy(sc->sc_dmat, sc->tx_sbuf_list[i].map); 616 617 for (i = 0; i < IPW_NRBD; i++) { 618 sbuf = &sc->rx_sbuf_list[i]; 619 if (sbuf->map != NULL) { 620 if (sbuf->m != NULL) { 621 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 622 m_freem(sbuf->m); 623 } 624 bus_dmamap_destroy(sc->sc_dmat, sbuf->map); 625 } 626 } 627} 628 629int 630ipw_media_change(struct ifnet *ifp) 631{ 632 int error; 633 634 error = ieee80211_media_change(ifp); 635 if (error != ENETRESET) 636 return error; 637 638 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 639 ipw_init(ifp); 640 641 return 0; 642} 643 644void 645ipw_media_status(struct ifnet *ifp, struct ifmediareq *imr) 646{ 647 struct ipw_softc *sc = ifp->if_softc; 648 struct ieee80211com *ic = &sc->sc_ic; 649#define N(a) (sizeof (a) / sizeof (a[0])) 650 static const struct { 651 u_int32_t val; 652 int rate; 653 } rates[] = { 654 { IPW_RATE_DS1, 2 }, 655 { IPW_RATE_DS2, 4 }, 656 { IPW_RATE_DS5, 11 }, 657 { IPW_RATE_DS11, 22 }, 658 }; 659 u_int32_t val; 660 int rate, i; 661 662 imr->ifm_status = IFM_AVALID; 663 imr->ifm_active = IFM_IEEE80211; 664 if (ic->ic_state == IEEE80211_S_RUN) 665 imr->ifm_status |= IFM_ACTIVE; 666 667 /* read current transmission rate from adapter */ 668 val = ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE); 669 val &= 0xf; 670 671 /* convert rate to 802.11 rate */ 672 for (i = 0; i < N(rates) && rates[i].val != val; i++); 673 rate = (i < N(rates)) ? rates[i].rate : 0; 674 675 imr->ifm_active |= IFM_IEEE80211_11B; 676 imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 677 switch (ic->ic_opmode) { 678 case IEEE80211_M_STA: 679 break; 680 681 case IEEE80211_M_IBSS: 682 imr->ifm_active |= IFM_IEEE80211_IBSS; 683 break; 684 685 case IEEE80211_M_MONITOR: 686 imr->ifm_active |= IFM_IEEE80211_MONITOR; 687 break; 688 689 case IEEE80211_M_AHDEMO: 690 case IEEE80211_M_HOSTAP: 691 /* should not get there */ 692 break; 693 } 694#undef N 695} 696 697int 698ipw_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 699{ 700 struct ipw_softc *sc = ic->ic_softc; 701 struct ieee80211_node *ni = ic->ic_bss; 702 u_int32_t len; 703 u_int8_t val; 704 705 switch (nstate) { 706 case IEEE80211_S_RUN: 707 len = IEEE80211_NWID_LEN; 708 ipw_read_table2(sc, IPW_INFO_CURRENT_SSID, ni->ni_essid, &len); 709 ni->ni_esslen = len; 710 711 val = ipw_read_table1(sc, IPW_INFO_CURRENT_CHANNEL); 712 ni->ni_chan = &ic->ic_channels[val]; 713 714 DELAY(100); /* firmware needs a short delay here */ 715 716 len = IEEE80211_ADDR_LEN; 717 ipw_read_table2(sc, IPW_INFO_CURRENT_BSSID, ni->ni_bssid, &len); 718 break; 719 720 case IEEE80211_S_INIT: 721 case IEEE80211_S_SCAN: 722 case IEEE80211_S_AUTH: 723 case IEEE80211_S_ASSOC: 724 break; 725 } 726 727 ic->ic_state = nstate; 728 return 0; 729} 730 731/* 732 * Read 16 bits at address 'addr' from the Microwire EEPROM. 733 * DON'T PLAY WITH THIS CODE UNLESS YOU KNOW *EXACTLY* WHAT YOU'RE DOING! 734 */ 735u_int16_t 736ipw_read_prom_word(struct ipw_softc *sc, u_int8_t addr) 737{ 738 u_int32_t tmp; 739 u_int16_t val; 740 int n; 741 742 /* Clock C once before the first command */ 743 IPW_EEPROM_CTL(sc, 0); 744 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 745 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 746 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 747 748 /* Write start bit (1) */ 749 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 750 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 751 752 /* Write READ opcode (10) */ 753 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 754 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 755 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 756 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 757 758 /* Write address A7-A0 */ 759 for (n = 7; n >= 0; n--) { 760 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 761 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D)); 762 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 763 (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C); 764 } 765 766 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 767 768 /* Read data Q15-Q0 */ 769 val = 0; 770 for (n = 15; n >= 0; n--) { 771 IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 772 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 773 tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL); 774 val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n; 775 } 776 777 IPW_EEPROM_CTL(sc, 0); 778 779 /* Clear Chip Select and clock C */ 780 IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 781 IPW_EEPROM_CTL(sc, 0); 782 IPW_EEPROM_CTL(sc, IPW_EEPROM_C); 783 784 return letoh16(val); 785} 786 787void 788ipw_scan_result(struct ipw_softc *sc) 789{ 790 struct ieee80211com *ic = &sc->sc_ic; 791 struct ieee80211_node *ni; 792 u_int32_t i, cnt, off; 793 struct ipw_node ap; 794 795 /* flush previously seen access points */ 796 ieee80211_free_allnodes(ic); 797 798 cnt = ipw_read_table1(sc, IPW_INFO_APS_CNT); 799 off = ipw_read_table1(sc, IPW_INFO_APS_BASE); 800 801 DPRINTF(("Found %u APs\n", cnt)); 802 803 for (i = 0; i < cnt; i++) { 804 ipw_read_mem_1(sc, off, (u_int8_t *)&ap, sizeof ap); 805 off += sizeof ap; 806 807#ifdef IPW_DEBUG 808 if (ipw_debug >= 2) { 809 u_char *p = (u_char *)≈ 810 int j; 811 812 printf("AP%u\n", i); 813 for (j = 0; j < sizeof ap; j++) 814 printf("%02x", *p++); 815 printf("\n"); 816 } 817#endif 818 819 ni = ieee80211_lookup_node(ic, ap.bssid, 820 &ic->ic_channels[ap.chan]); 821 if (ni != NULL) 822 continue; 823 824 ni = ieee80211_alloc_node(ic, ap.bssid); 825 if (ni == NULL) 826 return; 827 828 IEEE80211_ADDR_COPY(ni->ni_bssid, ap.bssid); 829 ni->ni_rssi = ap.rssi; 830 ni->ni_intval = letoh16(ap.intval); 831 ni->ni_capinfo = letoh16(ap.capinfo); 832 ni->ni_chan = &ic->ic_channels[ap.chan]; 833 ni->ni_esslen = ap.esslen; 834 bcopy(ap.essid, ni->ni_essid, IEEE80211_NWID_LEN); 835 } 836} 837 838void 839ipw_command_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 840{ 841 struct ipw_cmd *cmd; 842 843 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, sizeof (struct ipw_cmd), 844 BUS_DMASYNC_POSTREAD); 845 846 cmd = mtod(sbuf->m, struct ipw_cmd *); 847 848 DPRINTFN(2, ("RX!CMD!%u!%u!%u!%u!%u\n", 849 letoh32(cmd->type), letoh32(cmd->subtype), letoh32(cmd->seq), 850 letoh32(cmd->len), letoh32(cmd->status))); 851 852 wakeup(sc); 853} 854 855void 856ipw_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 857{ 858 struct ieee80211com *ic = &sc->sc_ic; 859 u_int32_t state; 860 861 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, sizeof state, 862 BUS_DMASYNC_POSTREAD); 863 864 state = letoh32(*mtod(sbuf->m, u_int32_t *)); 865 866 DPRINTFN(2, ("RX!NEWSTATE!%u\n", state)); 867 868 switch (state) { 869 case IPW_STATE_ASSOCIATED: 870 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 871 break; 872 873 case IPW_STATE_SCANNING: 874 /* don't leave run state on background scan */ 875 if (ic->ic_state != IEEE80211_S_RUN) 876 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 877 break; 878 879 case IPW_STATE_SCAN_COMPLETE: 880 ipw_scan_result(sc); 881 break; 882 883 case IPW_STATE_ASSOCIATION_LOST: 884 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 885 break; 886 887 case IPW_STATE_RADIO_DISABLED: 888 ipw_stop(&ic->ic_if, 1); 889 break; 890 } 891} 892 893void 894ipw_data_intr(struct ipw_softc *sc, struct ipw_status *status, 895 struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf) 896{ 897 struct ieee80211com *ic = &sc->sc_ic; 898 struct ifnet *ifp = &ic->ic_if; 899 struct mbuf *m; 900 struct ieee80211_frame *wh; 901 struct ieee80211_node *ni; 902 int error; 903 904 DPRINTFN(5, ("RX!DATA!%u!%u\n", letoh32(status->len), status->rssi)); 905 906 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, letoh32(status->len), 907 BUS_DMASYNC_POSTREAD); 908 909 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 910 911 /* Finalize mbuf */ 912 m = sbuf->m; 913 m->m_pkthdr.rcvif = ifp; 914 m->m_pkthdr.len = m->m_len = letoh32(status->len); 915 916#if NBPFILTER > 0 917 if (sc->sc_drvbpf != NULL) { 918 struct mbuf mb; 919 struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap; 920 921 tap->wr_flags = 0; 922 tap->wr_antsignal = status->rssi; 923 tap->wr_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 924 tap->wr_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 925 926 M_DUP_PKTHDR(&mb, m); 927 mb.m_data = (caddr_t)tap; 928 mb.m_len = sc->sc_rxtap_len; 929 mb.m_next = m; 930 mb.m_pkthdr.len += mb.m_len; 931 bpf_mtap(sc->sc_drvbpf, &mb); 932 } 933#endif 934 935 wh = mtod(m, struct ieee80211_frame *); 936 937 ni = ieee80211_find_rxnode(ic, wh); 938 939 /* Send the frame to the upper layer */ 940 ieee80211_input(ifp, m, ni, status->rssi, 0); 941 942 ieee80211_release_node(ic, ni); 943 944 MGETHDR(m, M_DONTWAIT, MT_DATA); 945 if (m == NULL) { 946 printf("%s: could not allocate rx mbuf\n", 947 sc->sc_dev.dv_xname); 948 return; 949 } 950 MCLGET(m, M_DONTWAIT); 951 if (!(m->m_flags & M_EXT)) { 952 m_freem(m); 953 printf("%s: could not allocate rx mbuf cluster\n", 954 sc->sc_dev.dv_xname); 955 return; 956 } 957 958 error = bus_dmamap_load(sc->sc_dmat, sbuf->map, mtod(m, void *), 959 MCLBYTES, NULL, BUS_DMA_NOWAIT); 960 if (error != 0) { 961 printf("%s: could not map rx DMA memory\n", 962 sc->sc_dev.dv_xname); 963 m_freem(m); 964 return; 965 } 966 967 sbuf->m = m; 968 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[0].ds_addr); 969} 970 971void 972ipw_notification_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 973{ 974 DPRINTFN(2, ("RX!NOTIFICATION\n")); 975} 976 977void 978ipw_rx_intr(struct ipw_softc *sc) 979{ 980 struct ipw_status *status; 981 struct ipw_soft_bd *sbd; 982 struct ipw_soft_buf *sbuf; 983 u_int32_t r, i; 984 985 r = CSR_READ_4(sc, IPW_CSR_RX_READ_INDEX); 986 987 for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) { 988 989 bus_dmamap_sync(sc->sc_dmat, sc->rbd_map, 990 i * sizeof (struct ipw_bd), sizeof (struct ipw_bd), 991 BUS_DMASYNC_POSTREAD); 992 993 bus_dmamap_sync(sc->sc_dmat, sc->status_map, 994 i * sizeof (struct ipw_status), sizeof (struct ipw_status), 995 BUS_DMASYNC_POSTREAD); 996 997 status = &sc->status_list[i]; 998 sbd = &sc->srbd_list[i]; 999 sbuf = sbd->priv; 1000 1001 switch (letoh16(status->code) & 0xf) { 1002 case IPW_STATUS_CODE_COMMAND: 1003 ipw_command_intr(sc, sbuf); 1004 break; 1005 1006 case IPW_STATUS_CODE_NEWSTATE: 1007 ipw_newstate_intr(sc, sbuf); 1008 break; 1009 1010 case IPW_STATUS_CODE_DATA_802_3: 1011 case IPW_STATUS_CODE_DATA_802_11: 1012 ipw_data_intr(sc, status, sbd, sbuf); 1013 break; 1014 1015 case IPW_STATUS_CODE_NOTIFICATION: 1016 ipw_notification_intr(sc, sbuf); 1017 break; 1018 1019 default: 1020 printf("%s: unknown status code %u\n", 1021 sc->sc_dev.dv_xname, letoh16(status->code)); 1022 } 1023 sbd->bd->flags = 0; 1024 1025 bus_dmamap_sync(sc->sc_dmat, sc->rbd_map, 1026 i * sizeof (struct ipw_bd), sizeof (struct ipw_bd), 1027 BUS_DMASYNC_PREWRITE); 1028 } 1029 1030 /* Tell the firmware what we have processed */ 1031 sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1; 1032 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE_INDEX, sc->rxcur); 1033} 1034 1035void 1036ipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd) 1037{ 1038 struct ieee80211com *ic = &sc->sc_ic; 1039 struct ipw_soft_hdr *shdr; 1040 struct ipw_soft_buf *sbuf; 1041 1042 switch (sbd->type) { 1043 case IPW_SBD_TYPE_COMMAND: 1044 bus_dmamap_unload(sc->sc_dmat, sc->cmd_map); 1045 break; 1046 1047 case IPW_SBD_TYPE_HEADER: 1048 shdr = sbd->priv; 1049 bus_dmamap_unload(sc->sc_dmat, shdr->map); 1050 SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 1051 break; 1052 1053 case IPW_SBD_TYPE_DATA: 1054 sbuf = sbd->priv; 1055 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 1056 SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 1057 1058 m_freem(sbuf->m); 1059 1060 if (sbuf->ni != NULL) 1061 ieee80211_release_node(ic, sbuf->ni); 1062 1063 /* kill watchdog timer */ 1064 sc->sc_tx_timer = 0; 1065 break; 1066 } 1067 sbd->type = IPW_SBD_TYPE_NOASSOC; 1068} 1069 1070void 1071ipw_tx_intr(struct ipw_softc *sc) 1072{ 1073 struct ifnet *ifp = &sc->sc_ic.ic_if; 1074 u_int32_t r, i; 1075 1076 r = CSR_READ_4(sc, IPW_CSR_TX_READ_INDEX); 1077 1078 for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) { 1079 ipw_release_sbd(sc, &sc->stbd_list[i]); 1080 sc->txfree++; 1081 } 1082 1083 /* Remember what the firmware has processed */ 1084 sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1; 1085 1086 /* Call start() since some buffer descriptors have been released */ 1087 ifp->if_flags &= ~IFF_OACTIVE; 1088 (*ifp->if_start)(ifp); 1089} 1090 1091int 1092ipw_intr(void *arg) 1093{ 1094 struct ipw_softc *sc = arg; 1095 u_int32_t r; 1096 1097 if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) 1098 return 0; 1099 1100 /* Disable interrupts */ 1101 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1102 1103 DPRINTFN(8, ("INTR!0x%08x\n", r)); 1104 1105 if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) { 1106 printf("%s: fatal error\n", sc->sc_dev.dv_xname); 1107 ipw_stop(&sc->sc_ic.ic_if, 1); 1108 } 1109 1110 if (r & IPW_INTR_FW_INIT_DONE) { 1111 if (!(r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR))) 1112 wakeup(sc); 1113 } 1114 1115 if (r & IPW_INTR_RX_TRANSFER) 1116 ipw_rx_intr(sc); 1117 1118 if (r & IPW_INTR_TX_TRANSFER) 1119 ipw_tx_intr(sc); 1120 1121 /* Acknowledge interrupts */ 1122 CSR_WRITE_4(sc, IPW_CSR_INTR, r); 1123 1124 /* Re-enable interrupts */ 1125 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1126 1127 return 1; 1128} 1129 1130int 1131ipw_cmd(struct ipw_softc *sc, u_int32_t type, void *data, u_int32_t len) 1132{ 1133 struct ipw_soft_bd *sbd; 1134 int error; 1135 1136 sbd = &sc->stbd_list[sc->txcur]; 1137 1138 error = bus_dmamap_load(sc->sc_dmat, sc->cmd_map, &sc->cmd, 1139 sizeof (struct ipw_cmd), NULL, BUS_DMA_NOWAIT); 1140 if (error != 0) { 1141 printf("%s: could not map command DMA memory\n", 1142 sc->sc_dev.dv_xname); 1143 return error; 1144 } 1145 1146 sc->cmd.type = htole32(type); 1147 sc->cmd.subtype = htole32(0); 1148 sc->cmd.len = htole32(len); 1149 sc->cmd.seq = htole32(0); 1150 if (data != NULL) 1151 bcopy(data, sc->cmd.data, len); 1152 1153 sbd->type = IPW_SBD_TYPE_COMMAND; 1154 sbd->bd->physaddr = htole32(sc->cmd_map->dm_segs[0].ds_addr); 1155 sbd->bd->len = htole32(sizeof (struct ipw_cmd)); 1156 sbd->bd->nfrag = 1; 1157 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND | 1158 IPW_BD_FLAG_TX_LAST_FRAGMENT; 1159 1160 bus_dmamap_sync(sc->sc_dmat, sc->cmd_map, 0, sizeof (struct ipw_cmd), 1161 BUS_DMASYNC_PREWRITE); 1162 1163 bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 1164 sc->txcur * sizeof (struct ipw_bd), sizeof (struct ipw_bd), 1165 BUS_DMASYNC_PREWRITE); 1166 1167 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1168 sc->txfree--; 1169 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE_INDEX, sc->txcur); 1170 1171 DPRINTFN(2, ("TX!CMD!%u!%u!%u!%u\n", type, 0, 0, len)); 1172 1173 /* Wait at most one second for command to complete */ 1174 return tsleep(sc, 0, "ipwcmd", hz); 1175} 1176 1177int 1178ipw_tx_start(struct ifnet *ifp, struct mbuf *m, struct ieee80211_node *ni) 1179{ 1180 struct ipw_softc *sc = ifp->if_softc; 1181 struct ieee80211com *ic = &sc->sc_ic; 1182 struct ieee80211_frame *wh; 1183 struct ipw_soft_bd *sbd; 1184 struct ipw_soft_hdr *shdr; 1185 struct ipw_soft_buf *sbuf; 1186 struct mbuf *mnew; 1187 int error, i; 1188 1189 if (ic->ic_flags & IEEE80211_F_WEPON) { 1190 m = ieee80211_wep_crypt(ifp, m, 1); 1191 if (m == NULL) 1192 return ENOBUFS; 1193 } 1194 1195#if NBPFILTER > 0 1196 if (sc->sc_drvbpf != NULL) { 1197 struct mbuf mb; 1198 struct ipw_tx_radiotap_header *tap = &sc->sc_txtap; 1199 1200 tap->wt_flags = 0; 1201 tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); 1202 tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); 1203 1204 M_DUP_PKTHDR(&mb, m); 1205 mb.m_data = (caddr_t)tap; 1206 mb.m_len = sc->sc_txtap_len; 1207 mb.m_next = m; 1208 mb.m_pkthdr.len += mb.m_len; 1209 bpf_mtap(sc->sc_drvbpf, &mb); 1210 } 1211#endif 1212 1213 wh = mtod(m, struct ieee80211_frame *); 1214 1215 shdr = SLIST_FIRST(&sc->free_shdr); 1216 sbuf = SLIST_FIRST(&sc->free_sbuf); 1217 1218 shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND); 1219 shdr->hdr.subtype = htole32(0); 1220 shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0; 1221 shdr->hdr.encrypt = 0; 1222 shdr->hdr.keyidx = 0; 1223 shdr->hdr.keysz = 0; 1224 shdr->hdr.fragmentsz = htole16(0); 1225 IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2); 1226 if (ic->ic_opmode == IEEE80211_M_STA) 1227 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3); 1228 else 1229 IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1); 1230 1231 /* trim IEEE802.11 header */ 1232 m_adj(m, sizeof (struct ieee80211_frame)); 1233 1234 error = bus_dmamap_load_mbuf(sc->sc_dmat, sbuf->map, m, BUS_DMA_NOWAIT); 1235 if (error != 0 && error != EFBIG) { 1236 printf("%s: could not map mbuf (error %d)\n", 1237 sc->sc_dev.dv_xname, error); 1238 m_freem(m); 1239 return error; 1240 } 1241 if (error != 0) { 1242 /* too many fragments, linearize */ 1243 1244 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1245 if (mnew == NULL) { 1246 m_freem(m); 1247 return ENOMEM; 1248 } 1249 1250 M_DUP_PKTHDR(mnew, m); 1251 MCLGET(mnew, M_DONTWAIT); 1252 if (!(mnew->m_flags & M_EXT)) { 1253 m_freem(m); 1254 m_freem(mnew); 1255 return ENOMEM; 1256 } 1257 1258 m_copydata(m, 0, m->m_pkthdr.len, mtod(mnew, caddr_t)); 1259 m_freem(m); 1260 mnew->m_len = mnew->m_pkthdr.len; 1261 m = mnew; 1262 1263 error = bus_dmamap_load_mbuf(sc->sc_dmat, sbuf->map, m, 1264 BUS_DMA_NOWAIT); 1265 if (error != 0) { 1266 printf("%s: could not map mbuf (error %d)\n", 1267 sc->sc_dev.dv_xname, error); 1268 m_freem(m); 1269 return error; 1270 } 1271 } 1272 1273 error = bus_dmamap_load(sc->sc_dmat, shdr->map, &shdr->hdr, 1274 sizeof (struct ipw_hdr), NULL, BUS_DMA_NOWAIT); 1275 if (error != 0) { 1276 printf("%s: could not map header DMA memory (error %d)\n", 1277 sc->sc_dev.dv_xname, error); 1278 bus_dmamap_unload(sc->sc_dmat, sbuf->map); 1279 m_freem(m); 1280 return error; 1281 } 1282 1283 SLIST_REMOVE_HEAD(&sc->free_sbuf, next); 1284 SLIST_REMOVE_HEAD(&sc->free_shdr, next); 1285 1286 sbd = &sc->stbd_list[sc->txcur]; 1287 sbd->type = IPW_SBD_TYPE_HEADER; 1288 sbd->priv = shdr; 1289 sbd->bd->physaddr = htole32(shdr->map->dm_segs[0].ds_addr); 1290 sbd->bd->len = htole32(sizeof (struct ipw_hdr)); 1291 sbd->bd->nfrag = 1 + sbuf->map->dm_nsegs; 1292 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 | 1293 IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1294 1295 DPRINTFN(5, ("TX!HDR!%u!%u!%u!%u", shdr->hdr.type, shdr->hdr.subtype, 1296 shdr->hdr.encrypted, shdr->hdr.encrypt)); 1297 DPRINTFN(5, ("!%s", ether_sprintf(shdr->hdr.src_addr))); 1298 DPRINTFN(5, ("!%s\n", ether_sprintf(shdr->hdr.dst_addr))); 1299 1300 bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 1301 sc->txcur * sizeof (struct ipw_bd), 1302 sizeof (struct ipw_bd), BUS_DMASYNC_PREWRITE); 1303 1304 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1305 sc->txfree--; 1306 1307 sbuf->m = m; 1308 sbuf->ni = ni; 1309 1310 for (i = 0; i < sbuf->map->dm_nsegs; i++) { 1311 sbd = &sc->stbd_list[sc->txcur]; 1312 sbd->bd->physaddr = htole32(sbuf->map->dm_segs[i].ds_addr); 1313 sbd->bd->len = htole32(sbuf->map->dm_segs[i].ds_len); 1314 sbd->bd->nfrag = 0; /* used only in first bd */ 1315 sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3; 1316 if (i == sbuf->map->dm_nsegs - 1) { 1317 sbd->type = IPW_SBD_TYPE_DATA; 1318 sbd->priv = sbuf; 1319 sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT; 1320 } else { 1321 sbd->type = IPW_SBD_TYPE_NOASSOC; 1322 sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1323 } 1324 1325 DPRINTFN(5, ("TX!FRAG!%d!%d\n", i, 1326 sbuf->map->dm_segs[i].ds_len)); 1327 1328 bus_dmamap_sync(sc->sc_dmat, sc->tbd_map, 1329 sc->txcur * sizeof (struct ipw_bd), 1330 sizeof (struct ipw_bd), BUS_DMASYNC_PREWRITE); 1331 1332 sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1333 sc->txfree--; 1334 } 1335 1336 bus_dmamap_sync(sc->sc_dmat, shdr->map, 0, sizeof (struct ipw_hdr), 1337 BUS_DMASYNC_PREWRITE); 1338 1339 bus_dmamap_sync(sc->sc_dmat, sbuf->map, 0, MCLBYTES, 1340 BUS_DMASYNC_PREWRITE); 1341 1342 /* Inform firmware about this new packet */ 1343 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE_INDEX, sc->txcur); 1344 1345 return 0; 1346} 1347 1348void 1349ipw_start(struct ifnet *ifp) 1350{ 1351 struct ipw_softc *sc = ifp->if_softc; 1352 struct ieee80211com *ic = &sc->sc_ic; 1353 struct mbuf *m; 1354 struct ieee80211_node *ni; 1355 1356 if (ic->ic_state != IEEE80211_S_RUN) 1357 return; 1358 1359 for (;;) { 1360 IF_DEQUEUE(&ifp->if_snd, m); 1361 if (m == NULL) 1362 break; 1363 1364 if (sc->txfree < 1 + IPW_MAX_NSEG) { 1365 IF_PREPEND(&ifp->if_snd, m); 1366 ifp->if_flags |= IFF_OACTIVE; 1367 break; 1368 } 1369 1370#if NBPFILTER > 0 1371 if (ifp->if_bpf != NULL) 1372 bpf_mtap(ifp->if_bpf, m); 1373#endif 1374 1375 m = ieee80211_encap(ifp, m, &ni); 1376 if (m == NULL) 1377 continue; 1378 1379#if NBPFILTER > 0 1380 if (ic->ic_rawbpf != NULL) 1381 bpf_mtap(ic->ic_rawbpf, m); 1382#endif 1383 1384 if (ipw_tx_start(ifp, m, ni) != 0) { 1385 if (ni != NULL) 1386 ieee80211_release_node(ic, ni); 1387 break; 1388 } 1389 1390 /* start watchdog timer */ 1391 sc->sc_tx_timer = 5; 1392 ifp->if_timer = 1; 1393 } 1394} 1395 1396void 1397ipw_watchdog(struct ifnet *ifp) 1398{ 1399 struct ipw_softc *sc = ifp->if_softc; 1400 1401 ifp->if_timer = 0; 1402 1403 if (sc->sc_tx_timer > 0) { 1404 if (--sc->sc_tx_timer == 0) { 1405 printf("%s: device timeout\n", sc->sc_dev.dv_xname); 1406 ipw_stop(ifp, 1); 1407 return; 1408 } 1409 ifp->if_timer = 1; 1410 } 1411 1412 ieee80211_watchdog(ifp); 1413} 1414 1415int 1416ipw_get_table1(struct ipw_softc *sc, u_int32_t *tbl) 1417{ 1418 u_int32_t i, size, buf[256]; 1419 1420 if (!(sc->flags & IPW_FLAG_FW_INITED)) { 1421 bzero(buf, sizeof buf); 1422 return copyout(buf, tbl, sizeof buf); 1423 } 1424 1425 CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base); 1426 1427 size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256); 1428 for (i = 1; i < size; i++) 1429 buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA)); 1430 1431 return copyout(buf, tbl, sizeof buf); 1432} 1433 1434int 1435ipw_get_radio(struct ipw_softc *sc, int *ret) 1436{ 1437 int val; 1438 1439 val = (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED) ? 0 : 1; 1440 return copyout(&val, ret, sizeof val); 1441} 1442 1443int 1444ipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1445{ 1446 struct ipw_softc *sc = ifp->if_softc; 1447 struct ifreq *ifr; 1448 struct ifaddr *ifa; 1449 int s, error = 0; 1450 1451 s = splnet(); 1452 1453 switch (cmd) { 1454 case SIOCSIFADDR: 1455 ifa = (struct ifaddr *) data; 1456 ifp->if_flags |= IFF_UP; 1457 switch (ifa->ifa_addr->sa_family) { 1458#ifdef INET 1459 case AF_INET: 1460 arp_ifinit(&sc->sc_ic.ic_ac, ifa); 1461 ipw_init(ifp); 1462 break; 1463#endif 1464 default: 1465 ipw_init(ifp); 1466 } 1467 break; 1468 1469 case SIOCSIFFLAGS: 1470 if (ifp->if_flags & IFF_UP) { 1471 if (!(ifp->if_flags & IFF_RUNNING)) 1472 ipw_init(ifp); 1473 } else { 1474 if (ifp->if_flags & IFF_RUNNING) 1475 ipw_stop(ifp, 1); 1476 } 1477 break; 1478 1479 case SIOCGTABLE1: 1480 ifr = (struct ifreq *)data; 1481 error = ipw_get_table1(sc, (u_int32_t *)ifr->ifr_data); 1482 break; 1483 1484 case SIOCGRADIO: 1485 ifr = (struct ifreq *)data; 1486 error = ipw_get_radio(sc, (int *)ifr->ifr_data); 1487 break; 1488 1489 case SIOCG80211AUTH: 1490 ((struct ieee80211_auth *)data)->i_authtype = sc->authmode; 1491 break; 1492 1493 case SIOCS80211AUTH: 1494 /* only super-user can do that! */ 1495 if ((error = suser(curproc, 0)) != 0) 1496 break; 1497 1498 sc->authmode = ((struct ieee80211_auth *)data)->i_authtype; 1499 break; 1500 1501 default: 1502 error = ieee80211_ioctl(ifp, cmd, data); 1503 } 1504 1505 if (error == ENETRESET && cmd != SIOCADDMULTI) { 1506 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1507 (IFF_UP | IFF_RUNNING)) 1508 ipw_init(ifp); 1509 error = 0; 1510 } 1511 1512 splx(s); 1513 return error; 1514} 1515 1516u_int32_t 1517ipw_read_table1(struct ipw_softc *sc, u_int32_t off) 1518{ 1519 return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off)); 1520} 1521 1522void 1523ipw_write_table1(struct ipw_softc *sc, u_int32_t off, u_int32_t info) 1524{ 1525 MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info); 1526} 1527 1528int 1529ipw_read_table2(struct ipw_softc *sc, u_int32_t off, void *buf, u_int32_t *len) 1530{ 1531 u_int32_t addr, info; 1532 u_int16_t count, size; 1533 u_int32_t total; 1534 1535 /* addr[4] + count[2] + size[2] */ 1536 addr = MEM_READ_4(sc, sc->table2_base + off); 1537 info = MEM_READ_4(sc, sc->table2_base + off + 4); 1538 1539 count = info >> 16; 1540 size = info & 0xffff; 1541 total = count * size; 1542 1543 if (total > *len) { 1544 *len = total; 1545 return EINVAL; 1546 } 1547 1548 *len = total; 1549 ipw_read_mem_1(sc, addr, buf, total); 1550 1551 return 0; 1552} 1553 1554void 1555ipw_stop_master(struct ipw_softc *sc) 1556{ 1557 int ntries; 1558 1559 /* Disable interrupts */ 1560 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1561 1562 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER); 1563 for (ntries = 0; ntries < 50; ntries++) { 1564 if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED) 1565 break; 1566 DELAY(10); 1567 } 1568 if (ntries == 50) 1569 printf("%s: timeout waiting for master\n", 1570 sc->sc_dev.dv_xname); 1571 1572 CSR_WRITE_4(sc, IPW_CSR_RST, CSR_READ_4(sc, IPW_CSR_RST) | 1573 IPW_RST_PRINCETON_RESET); 1574 1575 sc->flags &= ~IPW_FLAG_FW_INITED; 1576} 1577 1578int 1579ipw_reset(struct ipw_softc *sc) 1580{ 1581 int ntries; 1582 1583 ipw_stop_master(sc); 1584 1585 /* Move adapter to D0 state */ 1586 CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1587 IPW_CTL_INIT); 1588 1589 /* Wait for clock stabilization */ 1590 for (ntries = 0; ntries < 1000; ntries++) { 1591 if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY) 1592 break; 1593 DELAY(200); 1594 } 1595 if (ntries == 1000) 1596 return EIO; 1597 1598 CSR_WRITE_4(sc, IPW_CSR_RST, CSR_READ_4(sc, IPW_CSR_RST) | 1599 IPW_RST_SW_RESET); 1600 1601 DELAY(10); 1602 1603 CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1604 IPW_CTL_INIT); 1605 1606 return 0; 1607} 1608 1609int 1610ipw_load_ucode(struct ipw_softc *sc, u_char *uc, int size) 1611{ 1612 int ntries; 1613 1614 MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1615 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1616 1617 MEM_WRITE_2(sc, 0x220000, 0x0703); 1618 MEM_WRITE_2(sc, 0x220000, 0x0707); 1619 1620 MEM_WRITE_1(sc, 0x210014, 0x72); 1621 MEM_WRITE_1(sc, 0x210014, 0x72); 1622 1623 MEM_WRITE_1(sc, 0x210000, 0x40); 1624 MEM_WRITE_1(sc, 0x210000, 0x00); 1625 MEM_WRITE_1(sc, 0x210000, 0x40); 1626 1627 MEM_WRITE_MULTI_1(sc, 0x210010, uc, size); 1628 1629 MEM_WRITE_1(sc, 0x210000, 0x00); 1630 MEM_WRITE_1(sc, 0x210000, 0x00); 1631 MEM_WRITE_1(sc, 0x210000, 0x80); 1632 1633 MEM_WRITE_2(sc, 0x220000, 0x0703); 1634 MEM_WRITE_2(sc, 0x220000, 0x0707); 1635 1636 MEM_WRITE_1(sc, 0x210014, 0x72); 1637 MEM_WRITE_1(sc, 0x210014, 0x72); 1638 1639 MEM_WRITE_1(sc, 0x210000, 0x00); 1640 MEM_WRITE_1(sc, 0x210000, 0x80); 1641 1642 for (ntries = 0; ntries < 100; ntries++) { 1643 if (MEM_READ_1(sc, 0x210000) & 1) 1644 break; 1645 DELAY(1000); 1646 } 1647 if (ntries == 100) { 1648 printf("%s: timeout waiting for ucode to initialize\n", 1649 sc->sc_dev.dv_xname); 1650 return EIO; 1651 } 1652 1653 MEM_WRITE_4(sc, 0x3000e0, 0); 1654 1655 return 0; 1656} 1657 1658/* set of macros to handle unaligned little endian data in firmware image */ 1659#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 1660#define GETLE16(p) ((p)[0] | (p)[1] << 8) 1661int 1662ipw_load_firmware(struct ipw_softc *sc, u_char *fw, int size) 1663{ 1664 u_char *p, *end; 1665 u_int32_t dst; 1666 u_int16_t len; 1667 int error; 1668 1669 p = fw; 1670 end = fw + size; 1671 while (p < end) { 1672 if (p + 6 > end) 1673 return EINVAL; 1674 1675 dst = GETLE32(p); p += 4; 1676 len = GETLE16(p); p += 2; 1677 1678 if (p + len > end) 1679 return EINVAL; 1680 1681 ipw_write_mem_1(sc, dst, p, len); 1682 p += len; 1683 } 1684 1685 CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK | 1686 IPW_IO_LED_OFF); 1687 1688 /* Allow interrupts so we know when the firmware is inited */ 1689 CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1690 1691 /* Tell the adapter to initialize the firmware */ 1692 CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1693 CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1694 IPW_CTL_ALLOW_STANDBY); 1695 1696 /* Wait at most one second for firmware initialization to complete */ 1697 if ((error = tsleep(sc, 0, "ipwinit", hz)) != 0) { 1698 printf("%s: timeout waiting for firmware initialization to " 1699 "complete\n", sc->sc_dev.dv_xname); 1700 return error; 1701 } 1702 1703 CSR_WRITE_4(sc, IPW_CSR_IO, CSR_READ_4(sc, IPW_CSR_IO) | 1704 IPW_IO_GPIO1_MASK | IPW_IO_GPIO3_MASK); 1705 1706 return 0; 1707} 1708 1709int 1710ipw_read_firmware(struct ipw_softc *sc, struct ipw_firmware *fw) 1711{ 1712 struct ipw_firmware_hdr *hdr; 1713 const char *name; 1714 u_char *p; 1715 size_t size; 1716 int error; 1717 1718 switch (sc->sc_ic.ic_opmode) { 1719 case IEEE80211_M_STA: 1720 case IEEE80211_M_HOSTAP: 1721 name = "ipw-bss"; 1722 break; 1723 1724 case IEEE80211_M_IBSS: 1725 case IEEE80211_M_AHDEMO: 1726 name = "ipw-ibss"; 1727 break; 1728 1729 case IEEE80211_M_MONITOR: 1730 name = "ipw-monitor"; 1731 break; 1732 } 1733 1734 if ((error = loadfirmware(name, &fw->data, &size)) != 0) 1735 return error; 1736 1737 if (size < sizeof (struct ipw_firmware_hdr)) { 1738 error = EINVAL; 1739 goto fail; 1740 } 1741 1742 p = fw->data; 1743 hdr = (struct ipw_firmware_hdr *)p; 1744 fw->main_size = letoh32(hdr->main_size); 1745 fw->ucode_size = letoh32(hdr->ucode_size); 1746 1747 p += sizeof (struct ipw_firmware_hdr); 1748 size -= sizeof (struct ipw_firmware_hdr); 1749 1750 if (size < fw->main_size + fw->ucode_size) { 1751 error = EINVAL; 1752 goto fail; 1753 } 1754 1755 fw->main = p; 1756 fw->ucode = p + fw->main_size; 1757 1758 return 0; 1759 1760fail: free(fw->data, M_DEVBUF); 1761 return error; 1762} 1763 1764int 1765ipw_config(struct ipw_softc *sc) 1766{ 1767 struct ieee80211com *ic = &sc->sc_ic; 1768 struct ifnet *ifp = &ic->ic_if; 1769 struct ipw_security security; 1770 struct ieee80211_wepkey *k; 1771 struct ipw_wep_key wepkey; 1772 struct ipw_scan_options options; 1773 struct ipw_configuration config; 1774 u_int32_t data; 1775 int error, i; 1776 1777 switch (ic->ic_opmode) { 1778 case IEEE80211_M_STA: 1779 case IEEE80211_M_HOSTAP: 1780 data = htole32(IPW_MODE_BSS); 1781 break; 1782 1783 case IEEE80211_M_IBSS: 1784 case IEEE80211_M_AHDEMO: 1785 data = htole32(IPW_MODE_IBSS); 1786 break; 1787 1788 case IEEE80211_M_MONITOR: 1789 data = htole32(IPW_MODE_MONITOR); 1790 break; 1791 } 1792 DPRINTF(("Setting mode to %u\n", letoh32(data))); 1793 error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data); 1794 if (error != 0) 1795 return error; 1796 1797 if (ic->ic_opmode == IEEE80211_M_IBSS || 1798 ic->ic_opmode == IEEE80211_M_MONITOR) { 1799 data = htole32(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 1800 DPRINTF(("Setting channel to %u\n", letoh32(data))); 1801 error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data); 1802 if (error != 0) 1803 return error; 1804 } 1805 1806 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 1807 DPRINTF(("Enabling adapter\n")); 1808 return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1809 } 1810 1811 IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 1812 DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_myaddr))); 1813 error = ipw_cmd(sc, IPW_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 1814 IEEE80211_ADDR_LEN); 1815 if (error != 0) 1816 return error; 1817 1818 config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK | 1819 IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE); 1820 if (ic->ic_opmode == IEEE80211_M_IBSS) 1821 config.flags |= htole32(IPW_CFG_IBSS_AUTO_START); 1822 if (ifp->if_flags & IFF_PROMISC) 1823 config.flags |= htole32(IPW_CFG_PROMISCUOUS); 1824 config.bss_chan = htole32(0x3fff); /* channels 1-14 */ 1825 config.ibss_chan = htole32(0x7ff); /* channels 1-11 */ 1826 DPRINTF(("Setting configuration 0x%x\n", config.flags)); 1827 error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config); 1828 if (error != 0) 1829 return error; 1830 1831 data = htole32(0x3); /* 1, 2 */ 1832 DPRINTF(("Setting basic tx rates to 0x%x\n", letoh32(data))); 1833 error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data); 1834 if (error != 0) 1835 return error; 1836 1837 data = htole32(0xf); /* 1, 2, 5.5, 11 */ 1838 DPRINTF(("Setting tx rates to 0x%x\n", letoh32(data))); 1839 error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data); 1840 if (error != 0) 1841 return error; 1842 1843 data = htole32(IPW_POWER_MODE_CAM); 1844 DPRINTF(("Setting power mode to %u\n", letoh32(data))); 1845 error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data); 1846 if (error != 0) 1847 return error; 1848 1849 if (ic->ic_opmode == IEEE80211_M_IBSS) { 1850 data = htole32(32); /* default value */ 1851 DPRINTF(("Setting tx power index to %u\n", letoh32(data))); 1852 error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data, 1853 sizeof data); 1854 if (error != 0) 1855 return error; 1856 } 1857 1858 data = htole32(ic->ic_rtsthreshold); 1859 DPRINTF(("Setting RTS threshold to %u\n", letoh32(data))); 1860 error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 1861 if (error != 0) 1862 return error; 1863 1864 data = htole32(ic->ic_fragthreshold); 1865 DPRINTF(("Setting frag threshold to %u\n", letoh32(data))); 1866 error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 1867 if (error != 0) 1868 return error; 1869 1870#ifdef IPW_DEBUG 1871 if (ipw_debug > 0) { 1872 printf("Setting ESSID to "); 1873 ieee80211_print_essid(ic->ic_des_essid, ic->ic_des_esslen); 1874 printf("\n"); 1875 } 1876#endif 1877 error = ipw_cmd(sc, IPW_CMD_SET_ESSID, ic->ic_des_essid, 1878 ic->ic_des_esslen); 1879 if (error != 0) 1880 return error; 1881 1882 /* no mandatory BSSID */ 1883 DPRINTF(("Setting mandatory BSSID to null\n")); 1884 error = ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0); 1885 if (error != 0) 1886 return error; 1887 1888 if (ic->ic_flags & IEEE80211_F_DESBSSID) { 1889 DPRINTF(("Setting adapter BSSID to %s\n", 1890 ether_sprintf(ic->ic_des_bssid))); 1891 error = ipw_cmd(sc, IPW_CMD_SET_DESIRED_BSSID, 1892 ic->ic_des_bssid, IEEE80211_ADDR_LEN); 1893 if (error != 0) 1894 return error; 1895 } 1896 1897 bzero(&security, sizeof security); 1898 security.authmode = (sc->authmode == IEEE80211_AUTH_SHARED) ? 1899 IPW_AUTH_SHARED : IPW_AUTH_OPEN; 1900 security.ciphers = htole32(IPW_CIPHER_NONE); 1901 DPRINTF(("Setting authmode to %u\n", security.authmode)); 1902 error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFORMATION, &security, 1903 sizeof security); 1904 if (error != 0) 1905 return error; 1906 1907 if (ic->ic_flags & IEEE80211_F_WEPON) { 1908 k = ic->ic_nw_keys; 1909 for (i = 0; i < IEEE80211_WEP_NKID; i++, k++) { 1910 if (k->wk_len == 0) 1911 continue; 1912 1913 wepkey.idx = i; 1914 wepkey.len = k->wk_len; 1915 bzero(wepkey.key, sizeof wepkey.key); 1916 bcopy(k->wk_key, wepkey.key, k->wk_len); 1917 DPRINTF(("Setting wep key index %u len %u\n", 1918 wepkey.idx, wepkey.len)); 1919 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey, 1920 sizeof wepkey); 1921 if (error != 0) 1922 return error; 1923 } 1924 1925 data = htole32(ic->ic_wep_txkey); 1926 DPRINTF(("Setting wep tx key index to %u\n", letoh32(data))); 1927 error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data, 1928 sizeof data); 1929 if (error != 0) 1930 return error; 1931 } 1932 1933 data = htole32((ic->ic_flags & IEEE80211_F_WEPON) ? IPW_WEPON : 0); 1934 DPRINTF(("Setting wep flags to 0x%x\n", letoh32(data))); 1935 error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data); 1936 if (error != 0) 1937 return error; 1938 1939 if (ic->ic_opmode == IEEE80211_M_IBSS || 1940 ic->ic_opmode == IEEE80211_M_HOSTAP) { 1941 data = htole32(ic->ic_lintval); 1942 DPRINTF(("Setting beacon interval to %u\n", letoh32(data))); 1943 error = ipw_cmd(sc, IPW_CMD_SET_BEACON_INTERVAL, &data, 1944 sizeof data); 1945 if (error != 0) 1946 return error; 1947 } 1948 1949 options.flags = htole32(0); 1950 options.channels = htole32(0x3fff); /* scan channels 1-14 */ 1951 DPRINTF(("Setting scan options to 0x%x\n", letoh32(options.flags))); 1952 error = ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &options, sizeof options); 1953 if (error != 0) 1954 return error; 1955 1956 /* finally, enable adapter (start scanning for an access point) */ 1957 DPRINTF(("Enabling adapter\n")); 1958 return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1959} 1960 1961int 1962ipw_init(struct ifnet *ifp) 1963{ 1964 struct ipw_softc *sc = ifp->if_softc; 1965 struct ipw_firmware fw; 1966 int error; 1967 1968 ipw_stop(ifp, 0); 1969 1970 if ((error = ipw_reset(sc)) != 0) { 1971 printf("%s: could not reset adapter\n", sc->sc_dev.dv_xname); 1972 goto fail1; 1973 } 1974 1975 if ((error = ipw_read_firmware(sc, &fw)) != NULL) { 1976 printf("%s: could not read firmware\n", sc->sc_dev.dv_xname); 1977 goto fail1; 1978 } 1979 1980 if ((error = ipw_load_ucode(sc, fw.ucode, fw.ucode_size)) != 0) { 1981 printf("%s: could not load microcode\n", sc->sc_dev.dv_xname); 1982 goto fail2; 1983 } 1984 1985 ipw_stop_master(sc); 1986 1987 /* 1988 * Setup tx, rx and status rings 1989 */ 1990 CSR_WRITE_4(sc, IPW_CSR_TX_BD_BASE, sc->tbd_map->dm_segs[0].ds_addr); 1991 CSR_WRITE_4(sc, IPW_CSR_TX_BD_SIZE, IPW_NTBD); 1992 CSR_WRITE_4(sc, IPW_CSR_TX_READ_INDEX, 0); 1993 CSR_WRITE_4(sc, IPW_CSR_TX_WRITE_INDEX, 0); 1994 sc->txold = IPW_NTBD - 1; /* latest bd index ack'ed by firmware */ 1995 sc->txcur = 0; /* bd index to write to */ 1996 sc->txfree = IPW_NTBD - 2; 1997 1998 CSR_WRITE_4(sc, IPW_CSR_RX_BD_BASE, sc->rbd_map->dm_segs[0].ds_addr); 1999 CSR_WRITE_4(sc, IPW_CSR_RX_BD_SIZE, IPW_NRBD); 2000 CSR_WRITE_4(sc, IPW_CSR_RX_READ_INDEX, 0); 2001 CSR_WRITE_4(sc, IPW_CSR_RX_WRITE_INDEX, IPW_NRBD - 1); 2002 sc->rxcur = IPW_NRBD - 1; /* latest bd index I've read */ 2003 2004 CSR_WRITE_4(sc, IPW_CSR_RX_STATUS_BASE, 2005 sc->status_map->dm_segs[0].ds_addr); 2006 2007 if ((error = ipw_load_firmware(sc, fw.main, fw.main_size)) != 0) { 2008 printf("%s: could not load firmware\n", sc->sc_dev.dv_xname); 2009 goto fail2; 2010 } 2011 2012 sc->flags |= IPW_FLAG_FW_INITED; 2013 2014 /* Retrieve information tables base addresses */ 2015 sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE); 2016 sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE); 2017 2018 ipw_write_table1(sc, IPW_INFO_LOCK, 0); 2019 2020 if ((error = ipw_config(sc)) != 0) { 2021 printf("%s: device configuration failed\n", 2022 sc->sc_dev.dv_xname); 2023 goto fail2; 2024 } 2025 2026 ifp->if_flags &= ~IFF_OACTIVE; 2027 ifp->if_flags |= IFF_RUNNING; 2028 2029 return 0; 2030 2031fail2: free(fw.data, M_DEVBUF); 2032fail1: ipw_stop(ifp, 0); 2033 2034 return error; 2035} 2036 2037void 2038ipw_stop(struct ifnet *ifp, int disable) 2039{ 2040 struct ipw_softc *sc = ifp->if_softc; 2041 struct ieee80211com *ic = &sc->sc_ic; 2042 int i; 2043 2044 ipw_stop_master(sc); 2045 CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET); 2046 2047 /* 2048 * Release tx buffers 2049 */ 2050 for (i = 0; i < IPW_NTBD; i++) 2051 ipw_release_sbd(sc, &sc->stbd_list[i]); 2052 2053 ifp->if_timer = 0; 2054 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2055 2056 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2057} 2058 2059void 2060ipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, u_int8_t *datap, 2061 bus_size_t count) 2062{ 2063 for (; count > 0; offset++, datap++, count--) { 2064 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2065 *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3)); 2066 } 2067} 2068 2069void 2070ipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, u_int8_t *datap, 2071 bus_size_t count) 2072{ 2073 for (; count > 0; offset++, datap++, count--) { 2074 CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2075 CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap); 2076 } 2077} 2078 2079struct cfdriver ipw_cd = { 2080 0, "ipw", DV_IFNET 2081}; 2082