| 1 | /* $NetBSD: awi.c,v 1.90 2016/06/10 13:27:13 ozaki-r Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1999,2000,2001 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Bill Sommerfeld |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | /* |
| 32 | * Driver for AMD 802.11 firmware. |
| 33 | * Uses am79c930 chip driver to talk to firmware running on the am79c930. |
| 34 | * |
| 35 | * More-or-less a generic ethernet-like if driver, with 802.11 gorp added. |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * todo: |
| 40 | * - flush tx queue on resynch. |
| 41 | * - clear oactive on "down". |
| 42 | * - rewrite copy-into-mbuf code |
| 43 | * - mgmt state machine gets stuck retransmitting assoc requests. |
| 44 | * - multicast filter. |
| 45 | * - fix device reset so it's more likely to work |
| 46 | * - show status goo through ifmedia. |
| 47 | * |
| 48 | * more todo: |
| 49 | * - deal with more 802.11 frames. |
| 50 | * - send reassoc request |
| 51 | * - deal with reassoc response |
| 52 | * - send/deal with disassociation |
| 53 | * - deal with "full" access points (no room for me). |
| 54 | * - power save mode |
| 55 | * |
| 56 | * later: |
| 57 | * - SSID preferences |
| 58 | * - need ioctls for poking at the MIBs |
| 59 | * - implement ad-hoc mode (including bss creation). |
| 60 | * - decide when to do "ad hoc" vs. infrastructure mode (IFF_LINK flags?) |
| 61 | * (focus on inf. mode since that will be needed for ietf) |
| 62 | * - deal with DH vs. FH versions of the card |
| 63 | * - deal with faster cards (2mb/s) |
| 64 | * - ?WEP goo (mmm, rc4) (it looks not particularly useful). |
| 65 | * - ifmedia revision. |
| 66 | * - common 802.11 mibish things. |
| 67 | * - common 802.11 media layer. |
| 68 | */ |
| 69 | |
| 70 | /* |
| 71 | * Driver for AMD 802.11 PCnetMobile firmware. |
| 72 | * Uses am79c930 chip driver to talk to firmware running on the am79c930. |
| 73 | * |
| 74 | * The initial version of the driver was written by |
| 75 | * Bill Sommerfeld <sommerfeld@NetBSD.org>. |
| 76 | * Then the driver module completely rewritten to support cards with DS phy |
| 77 | * and to support adhoc mode by Atsushi Onoe <onoe@NetBSD.org> |
| 78 | */ |
| 79 | |
| 80 | #include <sys/cdefs.h> |
| 81 | __KERNEL_RCSID(0, "$NetBSD: awi.c,v 1.90 2016/06/10 13:27:13 ozaki-r Exp $" ); |
| 82 | |
| 83 | #include "opt_inet.h" |
| 84 | |
| 85 | #include <sys/param.h> |
| 86 | #include <sys/systm.h> |
| 87 | #include <sys/kernel.h> |
| 88 | #include <sys/mbuf.h> |
| 89 | #include <sys/malloc.h> |
| 90 | #include <sys/proc.h> |
| 91 | #include <sys/socket.h> |
| 92 | #include <sys/sockio.h> |
| 93 | #include <sys/errno.h> |
| 94 | #include <sys/endian.h> |
| 95 | #include <sys/device.h> |
| 96 | |
| 97 | #include <net/if.h> |
| 98 | #include <net/if_dl.h> |
| 99 | #include <net/if_ether.h> |
| 100 | #include <net/if_media.h> |
| 101 | #include <net/if_llc.h> |
| 102 | |
| 103 | #include <net80211/ieee80211_netbsd.h> |
| 104 | #include <net80211/ieee80211_var.h> |
| 105 | |
| 106 | #include <net/bpf.h> |
| 107 | |
| 108 | #include <sys/cpu.h> |
| 109 | #include <sys/bus.h> |
| 110 | |
| 111 | #include <dev/ic/am79c930reg.h> |
| 112 | #include <dev/ic/am79c930var.h> |
| 113 | #include <dev/ic/awireg.h> |
| 114 | #include <dev/ic/awivar.h> |
| 115 | |
| 116 | static int awi_init(struct ifnet *); |
| 117 | static void awi_stop(struct ifnet *, int); |
| 118 | static void awi_start(struct ifnet *); |
| 119 | static void awi_watchdog(struct ifnet *); |
| 120 | static int awi_ioctl(struct ifnet *, u_long, void *); |
| 121 | static int awi_media_change(struct ifnet *); |
| 122 | static void awi_media_status(struct ifnet *, struct ifmediareq *); |
| 123 | static int awi_mode_init(struct awi_softc *); |
| 124 | static void awi_rx_int(struct awi_softc *); |
| 125 | static void awi_tx_int(struct awi_softc *); |
| 126 | static struct mbuf *awi_devget(struct awi_softc *, u_int32_t, u_int16_t); |
| 127 | static int awi_hw_init(struct awi_softc *); |
| 128 | static int awi_init_mibs(struct awi_softc *); |
| 129 | static int awi_mib(struct awi_softc *, u_int8_t, u_int8_t, int); |
| 130 | static int awi_cmd(struct awi_softc *, u_int8_t, int); |
| 131 | static int awi_cmd_wait(struct awi_softc *); |
| 132 | static void awi_cmd_done(struct awi_softc *); |
| 133 | static int awi_next_txd(struct awi_softc *, int, u_int32_t *, u_int32_t *); |
| 134 | static int awi_lock(struct awi_softc *); |
| 135 | static void awi_unlock(struct awi_softc *); |
| 136 | static int awi_intr_lock(struct awi_softc *); |
| 137 | static void awi_intr_unlock(struct awi_softc *); |
| 138 | static int awi_newstate(struct ieee80211com *, enum ieee80211_state, int); |
| 139 | static void awi_recv_mgmt(struct ieee80211com *, struct mbuf *, |
| 140 | struct ieee80211_node *, int, int, u_int32_t); |
| 141 | static int awi_send_mgmt(struct ieee80211com *, struct ieee80211_node *, int, |
| 142 | int); |
| 143 | static struct mbuf *awi_ether_encap(struct awi_softc *, struct mbuf *); |
| 144 | static struct mbuf *awi_ether_modcap(struct awi_softc *, struct mbuf *); |
| 145 | |
| 146 | /* unaligned little endian access */ |
| 147 | #define LE_READ_2(p) \ |
| 148 | ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)) |
| 149 | #define LE_READ_4(p) \ |
| 150 | ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \ |
| 151 | (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)) |
| 152 | #define LE_WRITE_2(p, v) \ |
| 153 | ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ |
| 154 | (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff))) |
| 155 | #define LE_WRITE_4(p, v) \ |
| 156 | ((((u_int8_t *)(p))[0] = (((u_int32_t)(v) ) & 0xff)), \ |
| 157 | (((u_int8_t *)(p))[1] = (((u_int32_t)(v) >> 8) & 0xff)), \ |
| 158 | (((u_int8_t *)(p))[2] = (((u_int32_t)(v) >> 16) & 0xff)), \ |
| 159 | (((u_int8_t *)(p))[3] = (((u_int32_t)(v) >> 24) & 0xff))) |
| 160 | |
| 161 | struct awi_chanset awi_chanset[] = { |
| 162 | /* PHY type domain min max def */ |
| 163 | { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_JP, 6, 17, 6 }, |
| 164 | { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_ES, 0, 26, 1 }, |
| 165 | { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_FR, 0, 32, 1 }, |
| 166 | { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_US, 0, 77, 1 }, |
| 167 | { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_CA, 0, 77, 1 }, |
| 168 | { AWI_PHY_TYPE_FH, AWI_REG_DOMAIN_EU, 0, 77, 1 }, |
| 169 | { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_JP, 14, 14, 14 }, |
| 170 | { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_ES, 10, 11, 10 }, |
| 171 | { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_FR, 10, 13, 10 }, |
| 172 | { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_US, 1, 11, 3 }, |
| 173 | { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_CA, 1, 11, 3 }, |
| 174 | { AWI_PHY_TYPE_DS, AWI_REG_DOMAIN_EU, 1, 13, 3 }, |
| 175 | { 0, 0, 0, 0, 0 } |
| 176 | }; |
| 177 | |
| 178 | #ifdef AWI_DEBUG |
| 179 | int awi_debug = 0; |
| 180 | |
| 181 | #define DPRINTF(X) if (awi_debug) printf X |
| 182 | #define DPRINTF2(X) if (awi_debug > 1) printf X |
| 183 | #else |
| 184 | #define DPRINTF(X) |
| 185 | #define DPRINTF2(X) |
| 186 | #endif |
| 187 | |
| 188 | int |
| 189 | awi_attach(struct awi_softc *sc) |
| 190 | { |
| 191 | struct ieee80211com *ic = &sc->sc_ic; |
| 192 | struct ifnet *ifp = &sc->sc_if; |
| 193 | int s, i, error, nrate; |
| 194 | int mword; |
| 195 | enum ieee80211_phymode mode; |
| 196 | |
| 197 | s = splnet(); |
| 198 | sc->sc_busy = 1; |
| 199 | sc->sc_attached = 0; |
| 200 | sc->sc_substate = AWI_ST_NONE; |
| 201 | if ((error = awi_hw_init(sc)) != 0) { |
| 202 | config_deactivate(sc->sc_dev); |
| 203 | splx(s); |
| 204 | return error; |
| 205 | } |
| 206 | error = awi_init_mibs(sc); |
| 207 | if (error != 0) { |
| 208 | config_deactivate(sc->sc_dev); |
| 209 | splx(s); |
| 210 | return error; |
| 211 | } |
| 212 | ifp->if_softc = sc; |
| 213 | ifp->if_flags = |
| 214 | #ifdef IFF_NOTRAILERS |
| 215 | IFF_NOTRAILERS | |
| 216 | #endif |
| 217 | IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; |
| 218 | ifp->if_ioctl = awi_ioctl; |
| 219 | ifp->if_start = awi_start; |
| 220 | ifp->if_watchdog = awi_watchdog; |
| 221 | ifp->if_init = awi_init; |
| 222 | ifp->if_stop = awi_stop; |
| 223 | IFQ_SET_READY(&ifp->if_snd); |
| 224 | memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
| 225 | |
| 226 | ic->ic_ifp = ifp; |
| 227 | ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP; |
| 228 | if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { |
| 229 | ic->ic_phytype = IEEE80211_T_FH; |
| 230 | mode = IEEE80211_MODE_FH; |
| 231 | } else { |
| 232 | ic->ic_phytype = IEEE80211_T_DS; |
| 233 | ic->ic_caps |= IEEE80211_C_AHDEMO; |
| 234 | mode = IEEE80211_MODE_11B; |
| 235 | } |
| 236 | ic->ic_opmode = IEEE80211_M_STA; |
| 237 | nrate = sc->sc_mib_phy.aSuprt_Data_Rates[1]; |
| 238 | memcpy(ic->ic_sup_rates[mode].rs_rates, |
| 239 | sc->sc_mib_phy.aSuprt_Data_Rates + 2, nrate); |
| 240 | ic->ic_sup_rates[mode].rs_nrates = nrate; |
| 241 | IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_mib_addr.aMAC_Address); |
| 242 | |
| 243 | printf("%s: IEEE802.11 %s (firmware %s)\n" , ifp->if_xname, |
| 244 | (ic->ic_phytype == IEEE80211_T_FH) ? "FH" : "DS" , sc->sc_banner); |
| 245 | printf("%s: 802.11 address: %s\n" , ifp->if_xname, |
| 246 | ether_sprintf(ic->ic_myaddr)); |
| 247 | |
| 248 | if_attach(ifp); |
| 249 | ieee80211_ifattach(ic); |
| 250 | |
| 251 | sc->sc_newstate = ic->ic_newstate; |
| 252 | ic->ic_newstate = awi_newstate; |
| 253 | |
| 254 | sc->sc_recv_mgmt = ic->ic_recv_mgmt; |
| 255 | ic->ic_recv_mgmt = awi_recv_mgmt; |
| 256 | |
| 257 | sc->sc_send_mgmt = ic->ic_send_mgmt; |
| 258 | ic->ic_send_mgmt = awi_send_mgmt; |
| 259 | |
| 260 | ieee80211_media_init(ic, awi_media_change, awi_media_status); |
| 261 | |
| 262 | /* Melco compatibility mode. */ |
| 263 | #define ADD(s, o) ifmedia_add(&ic->ic_media, \ |
| 264 | IFM_MAKEWORD(IFM_IEEE80211, (s), (o), 0), 0, NULL) |
| 265 | ADD(IFM_AUTO, IFM_FLAG0); |
| 266 | |
| 267 | for (i = 0; i < nrate; i++) { |
| 268 | mword = ieee80211_rate2media(ic, |
| 269 | ic->ic_sup_rates[mode].rs_rates[i], mode); |
| 270 | if (mword == 0) |
| 271 | continue; |
| 272 | ADD(mword, IFM_FLAG0); |
| 273 | } |
| 274 | #undef ADD |
| 275 | |
| 276 | if ((sc->sc_sdhook = shutdownhook_establish(awi_shutdown, sc)) == NULL) |
| 277 | printf("%s: WARNING: unable to establish shutdown hook\n" , |
| 278 | ifp->if_xname); |
| 279 | if ((sc->sc_powerhook = |
| 280 | powerhook_establish(ifp->if_xname, awi_power, sc)) == NULL) |
| 281 | printf("%s: WARNING: unable to establish power hook\n" , |
| 282 | ifp->if_xname); |
| 283 | sc->sc_attached = 1; |
| 284 | splx(s); |
| 285 | |
| 286 | /* ready to accept ioctl */ |
| 287 | awi_unlock(sc); |
| 288 | |
| 289 | return 0; |
| 290 | } |
| 291 | |
| 292 | int |
| 293 | awi_detach(struct awi_softc *sc) |
| 294 | { |
| 295 | struct ieee80211com *ic = &sc->sc_ic; |
| 296 | struct ifnet *ifp = &sc->sc_if; |
| 297 | int s; |
| 298 | |
| 299 | if (!sc->sc_attached) |
| 300 | return 0; |
| 301 | |
| 302 | s = splnet(); |
| 303 | awi_stop(ifp, 1); |
| 304 | |
| 305 | while (sc->sc_sleep_cnt > 0) { |
| 306 | wakeup(sc); |
| 307 | (void)tsleep(sc, PWAIT, "awidet" , 1); |
| 308 | } |
| 309 | sc->sc_attached = 0; |
| 310 | ieee80211_ifdetach(ic); |
| 311 | if_detach(ifp); |
| 312 | shutdownhook_disestablish(sc->sc_sdhook); |
| 313 | powerhook_disestablish(sc->sc_powerhook); |
| 314 | splx(s); |
| 315 | return 0; |
| 316 | } |
| 317 | |
| 318 | int |
| 319 | awi_activate(device_t self, enum devact act) |
| 320 | { |
| 321 | struct awi_softc *sc = device_private(self); |
| 322 | |
| 323 | switch (act) { |
| 324 | case DVACT_DEACTIVATE: |
| 325 | if_deactivate(&sc->sc_if); |
| 326 | return 0; |
| 327 | default: |
| 328 | return EOPNOTSUPP; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | void |
| 333 | awi_power(int why, void *arg) |
| 334 | { |
| 335 | struct awi_softc *sc = arg; |
| 336 | struct ifnet *ifp = &sc->sc_if; |
| 337 | int s; |
| 338 | int ocansleep; |
| 339 | |
| 340 | DPRINTF(("awi_power: %d\n" , why)); |
| 341 | s = splnet(); |
| 342 | ocansleep = sc->sc_cansleep; |
| 343 | sc->sc_cansleep = 0; |
| 344 | switch (why) { |
| 345 | case PWR_SUSPEND: |
| 346 | case PWR_STANDBY: |
| 347 | awi_stop(ifp, 1); |
| 348 | break; |
| 349 | case PWR_RESUME: |
| 350 | if (ifp->if_flags & IFF_UP) { |
| 351 | awi_init(ifp); |
| 352 | (void)awi_intr(sc); /* make sure */ |
| 353 | } |
| 354 | break; |
| 355 | case PWR_SOFTSUSPEND: |
| 356 | case PWR_SOFTSTANDBY: |
| 357 | case PWR_SOFTRESUME: |
| 358 | break; |
| 359 | } |
| 360 | sc->sc_cansleep = ocansleep; |
| 361 | splx(s); |
| 362 | } |
| 363 | |
| 364 | void |
| 365 | awi_shutdown(void *arg) |
| 366 | { |
| 367 | struct awi_softc *sc = arg; |
| 368 | struct ifnet *ifp = &sc->sc_if; |
| 369 | |
| 370 | if (sc->sc_attached) |
| 371 | awi_stop(ifp, 1); |
| 372 | } |
| 373 | |
| 374 | int |
| 375 | awi_intr(void *arg) |
| 376 | { |
| 377 | struct awi_softc *sc = arg; |
| 378 | u_int16_t status; |
| 379 | int handled = 0, ocansleep; |
| 380 | #ifdef AWI_DEBUG |
| 381 | static const char *intname[] = { |
| 382 | "CMD" , "RX" , "TX" , "SCAN_CMPLT" , |
| 383 | "CFP_START" , "DTIM" , "CFP_ENDING" , "GROGGY" , |
| 384 | "TXDATA" , "TXBCAST" , "TXPS" , "TXCF" , |
| 385 | "TXMGT" , "#13" , "RXDATA" , "RXMGT" |
| 386 | }; |
| 387 | #endif |
| 388 | |
| 389 | if (!sc->sc_enabled || !sc->sc_enab_intr || |
| 390 | !device_is_active(sc->sc_dev)) { |
| 391 | DPRINTF(("awi_intr: stray interrupt: " |
| 392 | "enabled %d enab_intr %d invalid %d\n" , |
| 393 | sc->sc_enabled, sc->sc_enab_intr, |
| 394 | !device_is_active(sc->sc_dev))); |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | am79c930_gcr_setbits(&sc->sc_chip, |
| 399 | AM79C930_GCR_DISPWDN | AM79C930_GCR_ECINT); |
| 400 | awi_write_1(sc, AWI_DIS_PWRDN, 1); |
| 401 | ocansleep = sc->sc_cansleep; |
| 402 | sc->sc_cansleep = 0; |
| 403 | |
| 404 | for (;;) { |
| 405 | if (awi_intr_lock(sc) != 0) |
| 406 | break; |
| 407 | status = awi_read_1(sc, AWI_INTSTAT); |
| 408 | awi_write_1(sc, AWI_INTSTAT, 0); |
| 409 | awi_write_1(sc, AWI_INTSTAT, 0); |
| 410 | status |= awi_read_1(sc, AWI_INTSTAT2) << 8; |
| 411 | awi_write_1(sc, AWI_INTSTAT2, 0); |
| 412 | DELAY(10); |
| 413 | awi_intr_unlock(sc); |
| 414 | if (!sc->sc_cmd_inprog) |
| 415 | status &= ~AWI_INT_CMD; /* make sure */ |
| 416 | if (status == 0) |
| 417 | break; |
| 418 | #ifdef AWI_DEBUG |
| 419 | if (awi_debug > 1) { |
| 420 | int i; |
| 421 | |
| 422 | printf("awi_intr: status 0x%04x" , status); |
| 423 | for (i = 0; i < sizeof(intname)/sizeof(intname[0]); |
| 424 | i++) { |
| 425 | if (status & (1 << i)) |
| 426 | printf(" %s" , intname[i]); |
| 427 | } |
| 428 | printf("\n" ); |
| 429 | } |
| 430 | #endif |
| 431 | handled = 1; |
| 432 | if (status & AWI_INT_RX) |
| 433 | awi_rx_int(sc); |
| 434 | if (status & AWI_INT_TX) |
| 435 | awi_tx_int(sc); |
| 436 | if (status & AWI_INT_CMD) |
| 437 | awi_cmd_done(sc); |
| 438 | if (status & AWI_INT_SCAN_CMPLT) { |
| 439 | if (sc->sc_ic.ic_state == IEEE80211_S_SCAN && |
| 440 | sc->sc_substate == AWI_ST_NONE) |
| 441 | ieee80211_next_scan(&sc->sc_ic); |
| 442 | } |
| 443 | } |
| 444 | sc->sc_cansleep = ocansleep; |
| 445 | am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_DISPWDN); |
| 446 | awi_write_1(sc, AWI_DIS_PWRDN, 0); |
| 447 | return handled; |
| 448 | } |
| 449 | |
| 450 | |
| 451 | static int |
| 452 | awi_init(struct ifnet *ifp) |
| 453 | { |
| 454 | struct awi_softc *sc = ifp->if_softc; |
| 455 | struct ieee80211com *ic = &sc->sc_ic; |
| 456 | struct ieee80211_node *ni = ic->ic_bss; |
| 457 | struct ieee80211_rateset *rs; |
| 458 | int error, rate, i; |
| 459 | |
| 460 | DPRINTF(("awi_init: enabled=%d\n" , sc->sc_enabled)); |
| 461 | if (sc->sc_enabled) { |
| 462 | awi_stop(ifp, 0); |
| 463 | } else { |
| 464 | if (sc->sc_enable) |
| 465 | (*sc->sc_enable)(sc); |
| 466 | sc->sc_enabled = 1; |
| 467 | if ((error = awi_hw_init(sc)) != 0) { |
| 468 | if (sc->sc_disable) |
| 469 | (*sc->sc_disable)(sc); |
| 470 | sc->sc_enabled = 0; |
| 471 | return error; |
| 472 | } |
| 473 | } |
| 474 | ic->ic_state = IEEE80211_S_INIT; |
| 475 | |
| 476 | ic->ic_flags &= ~IEEE80211_F_IBSSON; |
| 477 | switch (ic->ic_opmode) { |
| 478 | case IEEE80211_M_STA: |
| 479 | sc->sc_mib_local.Network_Mode = 1; |
| 480 | sc->sc_mib_local.Acting_as_AP = 0; |
| 481 | break; |
| 482 | case IEEE80211_M_IBSS: |
| 483 | ic->ic_flags |= IEEE80211_F_IBSSON; |
| 484 | /* FALLTHRU */ |
| 485 | case IEEE80211_M_AHDEMO: |
| 486 | sc->sc_mib_local.Network_Mode = 0; |
| 487 | sc->sc_mib_local.Acting_as_AP = 0; |
| 488 | break; |
| 489 | case IEEE80211_M_HOSTAP: |
| 490 | sc->sc_mib_local.Network_Mode = 1; |
| 491 | sc->sc_mib_local.Acting_as_AP = 1; |
| 492 | break; |
| 493 | case IEEE80211_M_MONITOR: |
| 494 | return ENODEV; |
| 495 | } |
| 496 | #if 0 |
| 497 | IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); |
| 498 | #endif |
| 499 | memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); |
| 500 | sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; |
| 501 | sc->sc_mib_mac.aDesired_ESS_ID[1] = ic->ic_des_esslen; |
| 502 | memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], ic->ic_des_essid, |
| 503 | ic->ic_des_esslen); |
| 504 | |
| 505 | /* configure basic rate */ |
| 506 | if (ic->ic_phytype == IEEE80211_T_FH) |
| 507 | rs = &ic->ic_sup_rates[IEEE80211_MODE_FH]; |
| 508 | else |
| 509 | rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; |
| 510 | if (ic->ic_fixed_rate != -1) { |
| 511 | rate = rs->rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; |
| 512 | } else { |
| 513 | rate = 0; |
| 514 | for (i = 0; i < rs->rs_nrates; i++) { |
| 515 | if ((rs->rs_rates[i] & IEEE80211_RATE_BASIC) && |
| 516 | rate < (rs->rs_rates[i] & IEEE80211_RATE_VAL)) |
| 517 | rate = rs->rs_rates[i] & IEEE80211_RATE_VAL; |
| 518 | } |
| 519 | } |
| 520 | rate *= 5; |
| 521 | LE_WRITE_2(&sc->sc_mib_mac.aStation_Basic_Rate, rate); |
| 522 | |
| 523 | if ((error = awi_mode_init(sc)) != 0) { |
| 524 | DPRINTF(("awi_init: awi_mode_init failed %d\n" , error)); |
| 525 | awi_stop(ifp, 1); |
| 526 | return error; |
| 527 | } |
| 528 | |
| 529 | /* start transmitter */ |
| 530 | sc->sc_txdone = sc->sc_txnext = sc->sc_txbase; |
| 531 | awi_write_4(sc, sc->sc_txbase + AWI_TXD_START, 0); |
| 532 | awi_write_4(sc, sc->sc_txbase + AWI_TXD_NEXT, 0); |
| 533 | awi_write_4(sc, sc->sc_txbase + AWI_TXD_LENGTH, 0); |
| 534 | awi_write_1(sc, sc->sc_txbase + AWI_TXD_RATE, 0); |
| 535 | awi_write_4(sc, sc->sc_txbase + AWI_TXD_NDA, 0); |
| 536 | awi_write_4(sc, sc->sc_txbase + AWI_TXD_NRA, 0); |
| 537 | awi_write_1(sc, sc->sc_txbase + AWI_TXD_STATE, 0); |
| 538 | awi_write_4(sc, AWI_CA_TX_DATA, sc->sc_txbase); |
| 539 | awi_write_4(sc, AWI_CA_TX_MGT, 0); |
| 540 | awi_write_4(sc, AWI_CA_TX_BCAST, 0); |
| 541 | awi_write_4(sc, AWI_CA_TX_PS, 0); |
| 542 | awi_write_4(sc, AWI_CA_TX_CF, 0); |
| 543 | if ((error = awi_cmd(sc, AWI_CMD_INIT_TX, AWI_WAIT)) != 0) { |
| 544 | DPRINTF(("awi_init: failed to start transmitter: %d\n" , error)); |
| 545 | awi_stop(ifp, 1); |
| 546 | return error; |
| 547 | } |
| 548 | |
| 549 | /* start receiver */ |
| 550 | if ((error = awi_cmd(sc, AWI_CMD_INIT_RX, AWI_WAIT)) != 0) { |
| 551 | DPRINTF(("awi_init: failed to start receiver: %d\n" , error)); |
| 552 | awi_stop(ifp, 1); |
| 553 | return error; |
| 554 | } |
| 555 | sc->sc_rxdoff = awi_read_4(sc, AWI_CA_IRX_DATA_DESC); |
| 556 | sc->sc_rxmoff = awi_read_4(sc, AWI_CA_IRX_PS_DESC); |
| 557 | |
| 558 | ifp->if_flags |= IFF_RUNNING; |
| 559 | ifp->if_flags &= ~IFF_OACTIVE; |
| 560 | ic->ic_state = IEEE80211_S_INIT; |
| 561 | |
| 562 | if (ic->ic_opmode == IEEE80211_M_AHDEMO || |
| 563 | ic->ic_opmode == IEEE80211_M_HOSTAP) { |
| 564 | ni->ni_chan = ic->ic_ibss_chan; |
| 565 | ni->ni_intval = ic->ic_lintval; |
| 566 | ni->ni_rssi = 0; |
| 567 | ni->ni_rstamp = 0; |
| 568 | memset(&ni->ni_tstamp, 0, sizeof(ni->ni_tstamp)); |
| 569 | ni->ni_rates = |
| 570 | ic->ic_sup_rates[ieee80211_chan2mode(ic, ni->ni_chan)]; |
| 571 | IEEE80211_ADDR_COPY(ni->ni_macaddr, ic->ic_myaddr); |
| 572 | if (ic->ic_opmode == IEEE80211_M_HOSTAP) { |
| 573 | IEEE80211_ADDR_COPY(ni->ni_bssid, ic->ic_myaddr); |
| 574 | ni->ni_esslen = ic->ic_des_esslen; |
| 575 | memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen); |
| 576 | ni->ni_capinfo = IEEE80211_CAPINFO_ESS; |
| 577 | if (ic->ic_phytype == IEEE80211_T_FH) { |
| 578 | ni->ni_fhdwell = 200; /* XXX */ |
| 579 | ni->ni_fhindex = 1; |
| 580 | } |
| 581 | } else { |
| 582 | ni->ni_capinfo = IEEE80211_CAPINFO_IBSS; |
| 583 | memset(ni->ni_bssid, 0, IEEE80211_ADDR_LEN); |
| 584 | ni->ni_esslen = 0; |
| 585 | } |
| 586 | if (ic->ic_flags & IEEE80211_F_PRIVACY) |
| 587 | ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY; |
| 588 | if (ic->ic_opmode != IEEE80211_M_AHDEMO) |
| 589 | ic->ic_flags |= IEEE80211_F_SIBSS; |
| 590 | ic->ic_state = IEEE80211_S_SCAN; /*XXX*/ |
| 591 | sc->sc_substate = AWI_ST_NONE; |
| 592 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 593 | } else { |
| 594 | /* XXX check sc->sc_cur_chan */ |
| 595 | ni->ni_chan = &ic->ic_channels[sc->sc_cur_chan]; |
| 596 | ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); |
| 597 | } |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | static void |
| 602 | awi_stop(struct ifnet *ifp, int disable) |
| 603 | { |
| 604 | struct awi_softc *sc = ifp->if_softc; |
| 605 | |
| 606 | if (!sc->sc_enabled) |
| 607 | return; |
| 608 | |
| 609 | DPRINTF(("awi_stop(%d)\n" , disable)); |
| 610 | |
| 611 | ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); |
| 612 | |
| 613 | if (device_is_active(sc->sc_dev)) { |
| 614 | if (sc->sc_cmd_inprog) |
| 615 | (void)awi_cmd_wait(sc); |
| 616 | (void)awi_cmd(sc, AWI_CMD_KILL_RX, AWI_WAIT); |
| 617 | sc->sc_cmd_inprog = AWI_CMD_FLUSH_TX; |
| 618 | awi_write_1(sc, AWI_CA_FTX_DATA, 1); |
| 619 | awi_write_1(sc, AWI_CA_FTX_MGT, 0); |
| 620 | awi_write_1(sc, AWI_CA_FTX_BCAST, 0); |
| 621 | awi_write_1(sc, AWI_CA_FTX_PS, 0); |
| 622 | awi_write_1(sc, AWI_CA_FTX_CF, 0); |
| 623 | (void)awi_cmd(sc, AWI_CMD_FLUSH_TX, AWI_WAIT); |
| 624 | } |
| 625 | ifp->if_flags &= ~(IFF_RUNNING|IFF_OACTIVE); |
| 626 | ifp->if_timer = 0; |
| 627 | sc->sc_tx_timer = sc->sc_rx_timer = 0; |
| 628 | if (sc->sc_rxpend != NULL) { |
| 629 | m_freem(sc->sc_rxpend); |
| 630 | sc->sc_rxpend = NULL; |
| 631 | } |
| 632 | IFQ_PURGE(&ifp->if_snd); |
| 633 | |
| 634 | if (disable) { |
| 635 | if (device_is_active(sc->sc_dev)) |
| 636 | am79c930_gcr_setbits(&sc->sc_chip, |
| 637 | AM79C930_GCR_CORESET); |
| 638 | if (sc->sc_disable) |
| 639 | (*sc->sc_disable)(sc); |
| 640 | sc->sc_enabled = 0; |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | static void |
| 645 | awi_start(struct ifnet *ifp) |
| 646 | { |
| 647 | struct awi_softc *sc = ifp->if_softc; |
| 648 | struct ieee80211com *ic = &sc->sc_ic; |
| 649 | struct ether_header *eh; |
| 650 | struct ieee80211_node *ni; |
| 651 | struct ieee80211_frame *wh; |
| 652 | struct mbuf *m, *m0; |
| 653 | int len, dowep; |
| 654 | u_int32_t txd, frame, ntxd; |
| 655 | u_int8_t rate; |
| 656 | |
| 657 | if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) |
| 658 | return; |
| 659 | |
| 660 | for (;;) { |
| 661 | txd = sc->sc_txnext; |
| 662 | IF_POLL(&ic->ic_mgtq, m0); |
| 663 | dowep = 0; |
| 664 | if (m0 != NULL) { |
| 665 | len = m0->m_pkthdr.len; |
| 666 | if (awi_next_txd(sc, len, &frame, &ntxd)) { |
| 667 | ifp->if_flags |= IFF_OACTIVE; |
| 668 | break; |
| 669 | } |
| 670 | IF_DEQUEUE(&ic->ic_mgtq, m0); |
| 671 | ni = M_GETCTX(m0, struct ieee80211_node *); |
| 672 | } else { |
| 673 | if (ic->ic_state != IEEE80211_S_RUN) |
| 674 | break; |
| 675 | IFQ_POLL(&ifp->if_snd, m0); |
| 676 | if (m0 == NULL) |
| 677 | break; |
| 678 | /* |
| 679 | * Need to calculate the real length to determine |
| 680 | * if the transmit buffer has a room for the packet. |
| 681 | */ |
| 682 | len = m0->m_pkthdr.len + sizeof(struct ieee80211_frame); |
| 683 | if (!(ifp->if_flags & IFF_LINK0) && !sc->sc_adhoc_ap) |
| 684 | len += sizeof(struct llc) - |
| 685 | sizeof(struct ether_header); |
| 686 | if (ic->ic_flags & IEEE80211_F_PRIVACY) { |
| 687 | dowep = 1; |
| 688 | len += IEEE80211_WEP_IVLEN + |
| 689 | IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN; |
| 690 | } |
| 691 | if (awi_next_txd(sc, len, &frame, &ntxd)) { |
| 692 | ifp->if_flags |= IFF_OACTIVE; |
| 693 | break; |
| 694 | } |
| 695 | IFQ_DEQUEUE(&ifp->if_snd, m0); |
| 696 | ifp->if_opackets++; |
| 697 | bpf_mtap(ifp, m0); |
| 698 | eh = mtod(m0, struct ether_header *); |
| 699 | ni = ieee80211_find_txnode(ic, eh->ether_dhost); |
| 700 | if (ni == NULL) { |
| 701 | ifp->if_oerrors++; |
| 702 | continue; |
| 703 | } |
| 704 | if ((ifp->if_flags & IFF_LINK0) || sc->sc_adhoc_ap) |
| 705 | m0 = awi_ether_encap(sc, m0); |
| 706 | else { |
| 707 | m0 = ieee80211_encap(ic, m0, ni); |
| 708 | } |
| 709 | if (m0 == NULL) { |
| 710 | ieee80211_free_node(ni); |
| 711 | ifp->if_oerrors++; |
| 712 | continue; |
| 713 | } |
| 714 | wh = mtod(m0, struct ieee80211_frame *); |
| 715 | if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && |
| 716 | (ic->ic_opmode == IEEE80211_M_HOSTAP || |
| 717 | ic->ic_opmode == IEEE80211_M_IBSS) && |
| 718 | sc->sc_adhoc_ap == 0 && |
| 719 | (ifp->if_flags & IFF_LINK0) == 0 && |
| 720 | (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == |
| 721 | IEEE80211_FC0_TYPE_DATA) { |
| 722 | m_freem(m0); |
| 723 | ieee80211_free_node(ni); |
| 724 | ifp->if_oerrors++; |
| 725 | continue; |
| 726 | } |
| 727 | } |
| 728 | bpf_mtap3(ic->ic_rawbpf, m0); |
| 729 | if (dowep) { |
| 730 | if ((ieee80211_crypto_encap(ic, ni, m0)) == NULL) { |
| 731 | m_freem(m0); |
| 732 | ieee80211_free_node(ni); |
| 733 | ifp->if_oerrors++; |
| 734 | continue; |
| 735 | } |
| 736 | } |
| 737 | ieee80211_free_node(ni); |
| 738 | #ifdef DIAGNOSTIC |
| 739 | if (m0->m_pkthdr.len != len) { |
| 740 | printf("%s: length %d should be %d\n" , |
| 741 | sc->sc_if.if_xname, m0->m_pkthdr.len, len); |
| 742 | m_freem(m0); |
| 743 | ifp->if_oerrors++; |
| 744 | continue; |
| 745 | } |
| 746 | #endif |
| 747 | |
| 748 | if ((ifp->if_flags & IFF_DEBUG) && (ifp->if_flags & IFF_LINK2)) |
| 749 | ieee80211_dump_pkt(m0->m_data, m0->m_len, |
| 750 | ic->ic_bss->ni_rates. |
| 751 | rs_rates[ic->ic_bss->ni_txrate] & |
| 752 | IEEE80211_RATE_VAL, -1); |
| 753 | |
| 754 | for (m = m0, len = 0; m != NULL; m = m->m_next) { |
| 755 | awi_write_bytes(sc, frame + len, mtod(m, u_int8_t *), |
| 756 | m->m_len); |
| 757 | len += m->m_len; |
| 758 | } |
| 759 | m_freem(m0); |
| 760 | rate = (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & |
| 761 | IEEE80211_RATE_VAL) * 5; |
| 762 | awi_write_1(sc, ntxd + AWI_TXD_STATE, 0); |
| 763 | awi_write_4(sc, txd + AWI_TXD_START, frame); |
| 764 | awi_write_4(sc, txd + AWI_TXD_NEXT, ntxd); |
| 765 | awi_write_4(sc, txd + AWI_TXD_LENGTH, len); |
| 766 | awi_write_1(sc, txd + AWI_TXD_RATE, rate); |
| 767 | awi_write_4(sc, txd + AWI_TXD_NDA, 0); |
| 768 | awi_write_4(sc, txd + AWI_TXD_NRA, 0); |
| 769 | awi_write_1(sc, txd + AWI_TXD_STATE, AWI_TXD_ST_OWN); |
| 770 | sc->sc_txnext = ntxd; |
| 771 | |
| 772 | sc->sc_tx_timer = 5; |
| 773 | ifp->if_timer = 1; |
| 774 | } |
| 775 | } |
| 776 | |
| 777 | static void |
| 778 | awi_watchdog(struct ifnet *ifp) |
| 779 | { |
| 780 | struct awi_softc *sc = ifp->if_softc; |
| 781 | u_int32_t prevdone; |
| 782 | int ocansleep; |
| 783 | |
| 784 | ifp->if_timer = 0; |
| 785 | if (!sc->sc_enabled || !device_is_active(sc->sc_dev)) |
| 786 | return; |
| 787 | |
| 788 | ocansleep = sc->sc_cansleep; |
| 789 | sc->sc_cansleep = 0; |
| 790 | if (sc->sc_tx_timer) { |
| 791 | if (--sc->sc_tx_timer == 0) { |
| 792 | printf("%s: device timeout\n" , ifp->if_xname); |
| 793 | prevdone = sc->sc_txdone; |
| 794 | awi_tx_int(sc); |
| 795 | if (sc->sc_txdone == prevdone) { |
| 796 | ifp->if_oerrors++; |
| 797 | awi_init(ifp); |
| 798 | goto out; |
| 799 | } |
| 800 | } |
| 801 | ifp->if_timer = 1; |
| 802 | } |
| 803 | if (sc->sc_rx_timer) { |
| 804 | if (--sc->sc_rx_timer == 0) { |
| 805 | if (sc->sc_ic.ic_state == IEEE80211_S_RUN) { |
| 806 | ieee80211_new_state(&sc->sc_ic, |
| 807 | IEEE80211_S_SCAN, -1); |
| 808 | goto out; |
| 809 | } |
| 810 | } else |
| 811 | ifp->if_timer = 1; |
| 812 | } |
| 813 | /* TODO: rate control */ |
| 814 | ieee80211_watchdog(&sc->sc_ic); |
| 815 | out: |
| 816 | sc->sc_cansleep = ocansleep; |
| 817 | } |
| 818 | |
| 819 | static int |
| 820 | awi_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
| 821 | { |
| 822 | struct awi_softc *sc = ifp->if_softc; |
| 823 | struct ifreq *ifr = (struct ifreq *)data; |
| 824 | int s, error; |
| 825 | |
| 826 | s = splnet(); |
| 827 | /* serialize ioctl, since we may sleep */ |
| 828 | if ((error = awi_lock(sc)) != 0) |
| 829 | goto cantlock; |
| 830 | |
| 831 | switch (cmd) { |
| 832 | case SIOCSIFFLAGS: |
| 833 | if ((error = ifioctl_common(ifp, cmd, data)) != 0) |
| 834 | break; |
| 835 | if (ifp->if_flags & IFF_UP) { |
| 836 | if (sc->sc_enabled) { |
| 837 | /* |
| 838 | * To avoid rescanning another access point, |
| 839 | * do not call awi_init() here. Instead, |
| 840 | * only reflect promisc mode settings. |
| 841 | */ |
| 842 | error = awi_mode_init(sc); |
| 843 | } else |
| 844 | error = awi_init(ifp); |
| 845 | } else if (sc->sc_enabled) |
| 846 | awi_stop(ifp, 1); |
| 847 | break; |
| 848 | case SIOCSIFMEDIA: |
| 849 | case SIOCGIFMEDIA: |
| 850 | error = ifmedia_ioctl(ifp, ifr, &sc->sc_ic.ic_media, cmd); |
| 851 | break; |
| 852 | case SIOCADDMULTI: |
| 853 | case SIOCDELMULTI: |
| 854 | error = ether_ioctl(ifp, cmd, data); |
| 855 | if (error == ENETRESET) { |
| 856 | /* do not rescan */ |
| 857 | if (ifp->if_flags & IFF_RUNNING) |
| 858 | error = awi_mode_init(sc); |
| 859 | else |
| 860 | error = 0; |
| 861 | } |
| 862 | break; |
| 863 | default: |
| 864 | error = ieee80211_ioctl(&sc->sc_ic, cmd, data); |
| 865 | if (error == ENETRESET) { |
| 866 | if (sc->sc_enabled) |
| 867 | error = awi_init(ifp); |
| 868 | else |
| 869 | error = 0; |
| 870 | } |
| 871 | break; |
| 872 | } |
| 873 | awi_unlock(sc); |
| 874 | cantlock: |
| 875 | splx(s); |
| 876 | return error; |
| 877 | } |
| 878 | |
| 879 | /* |
| 880 | * Called from ifmedia_ioctl via awi_ioctl with lock obtained. |
| 881 | * |
| 882 | * TBD factor with ieee80211_media_change |
| 883 | */ |
| 884 | static int |
| 885 | awi_media_change(struct ifnet *ifp) |
| 886 | { |
| 887 | struct awi_softc *sc = ifp->if_softc; |
| 888 | struct ieee80211com *ic = &sc->sc_ic; |
| 889 | struct ifmedia_entry *ime; |
| 890 | enum ieee80211_opmode newmode; |
| 891 | int i, rate, newadhoc_ap, error = 0; |
| 892 | |
| 893 | ime = ic->ic_media.ifm_cur; |
| 894 | if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { |
| 895 | i = -1; |
| 896 | } else { |
| 897 | struct ieee80211_rateset *rs = |
| 898 | &ic->ic_sup_rates[(ic->ic_phytype == IEEE80211_T_FH) |
| 899 | ? IEEE80211_MODE_FH : IEEE80211_MODE_11B]; |
| 900 | rate = ieee80211_media2rate(ime->ifm_media); |
| 901 | if (rate == 0) |
| 902 | return EINVAL; |
| 903 | for (i = 0; i < rs->rs_nrates; i++) { |
| 904 | if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) |
| 905 | break; |
| 906 | } |
| 907 | if (i == rs->rs_nrates) |
| 908 | return EINVAL; |
| 909 | } |
| 910 | if (ic->ic_fixed_rate != i) { |
| 911 | ic->ic_fixed_rate = i; |
| 912 | error = ENETRESET; |
| 913 | } |
| 914 | |
| 915 | /* |
| 916 | * combination of mediaopt |
| 917 | * |
| 918 | * hostap adhoc flag0 opmode adhoc_ap comment |
| 919 | * + - - HOSTAP 0 HostAP |
| 920 | * - + - IBSS 0 IBSS |
| 921 | * - + + AHDEMO 0 WaveLAN adhoc |
| 922 | * - - + IBSS 1 Melco old Sta |
| 923 | * also LINK0 |
| 924 | * - - - STA 0 Infra Station |
| 925 | */ |
| 926 | newadhoc_ap = 0; |
| 927 | if (ime->ifm_media & IFM_IEEE80211_HOSTAP) |
| 928 | newmode = IEEE80211_M_HOSTAP; |
| 929 | else if (ime->ifm_media & IFM_IEEE80211_ADHOC) { |
| 930 | if (ic->ic_phytype == IEEE80211_T_DS && |
| 931 | (ime->ifm_media & IFM_FLAG0)) |
| 932 | newmode = IEEE80211_M_AHDEMO; |
| 933 | else |
| 934 | newmode = IEEE80211_M_IBSS; |
| 935 | } else if (ime->ifm_media & IFM_FLAG0) { |
| 936 | newmode = IEEE80211_M_IBSS; |
| 937 | newadhoc_ap = 1; |
| 938 | } else |
| 939 | newmode = IEEE80211_M_STA; |
| 940 | if (ic->ic_opmode != newmode || sc->sc_adhoc_ap != newadhoc_ap) { |
| 941 | ic->ic_opmode = newmode; |
| 942 | sc->sc_adhoc_ap = newadhoc_ap; |
| 943 | error = ENETRESET; |
| 944 | } |
| 945 | |
| 946 | if (error == ENETRESET) { |
| 947 | if (sc->sc_enabled) |
| 948 | error = awi_init(ifp); |
| 949 | else |
| 950 | error = 0; |
| 951 | } |
| 952 | return error; |
| 953 | } |
| 954 | |
| 955 | static void |
| 956 | awi_media_status(struct ifnet *ifp, struct ifmediareq *imr) |
| 957 | { |
| 958 | struct awi_softc *sc = ifp->if_softc; |
| 959 | struct ieee80211com *ic = &sc->sc_ic; |
| 960 | int rate; |
| 961 | enum ieee80211_phymode mode; |
| 962 | |
| 963 | imr->ifm_status = IFM_AVALID; |
| 964 | if (ic->ic_state == IEEE80211_S_RUN) |
| 965 | imr->ifm_status |= IFM_ACTIVE; |
| 966 | imr->ifm_active = IFM_IEEE80211; |
| 967 | if (ic->ic_phytype == IEEE80211_T_FH) |
| 968 | mode = IEEE80211_MODE_FH; |
| 969 | else |
| 970 | mode = IEEE80211_MODE_11B; |
| 971 | if (ic->ic_state == IEEE80211_S_RUN) { |
| 972 | rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] & |
| 973 | IEEE80211_RATE_VAL; |
| 974 | } else { |
| 975 | if (ic->ic_fixed_rate == -1) |
| 976 | rate = 0; |
| 977 | else |
| 978 | rate = ic->ic_sup_rates[mode]. |
| 979 | rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; |
| 980 | } |
| 981 | imr->ifm_active |= ieee80211_rate2media(ic, rate, mode); |
| 982 | switch (ic->ic_opmode) { |
| 983 | case IEEE80211_M_MONITOR: /* we should never reach here */ |
| 984 | break; |
| 985 | case IEEE80211_M_STA: |
| 986 | break; |
| 987 | case IEEE80211_M_IBSS: |
| 988 | if (sc->sc_adhoc_ap) |
| 989 | imr->ifm_active |= IFM_FLAG0; |
| 990 | else |
| 991 | imr->ifm_active |= IFM_IEEE80211_ADHOC; |
| 992 | break; |
| 993 | case IEEE80211_M_AHDEMO: |
| 994 | imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; |
| 995 | break; |
| 996 | case IEEE80211_M_HOSTAP: |
| 997 | imr->ifm_active |= IFM_IEEE80211_HOSTAP; |
| 998 | break; |
| 999 | } |
| 1000 | } |
| 1001 | |
| 1002 | static int |
| 1003 | awi_mode_init(struct awi_softc *sc) |
| 1004 | { |
| 1005 | struct ifnet *ifp = &sc->sc_if; |
| 1006 | int n, error; |
| 1007 | struct ether_multi *enm; |
| 1008 | struct ether_multistep step; |
| 1009 | |
| 1010 | /* reinitialize muticast filter */ |
| 1011 | n = 0; |
| 1012 | sc->sc_mib_local.Accept_All_Multicast_Dis = 0; |
| 1013 | if (sc->sc_ic.ic_opmode != IEEE80211_M_HOSTAP && |
| 1014 | (ifp->if_flags & IFF_PROMISC)) { |
| 1015 | sc->sc_mib_mac.aPromiscuous_Enable = 1; |
| 1016 | goto set_mib; |
| 1017 | } |
| 1018 | sc->sc_mib_mac.aPromiscuous_Enable = 0; |
| 1019 | ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); |
| 1020 | while (enm != NULL) { |
| 1021 | if (n == AWI_GROUP_ADDR_SIZE || |
| 1022 | !IEEE80211_ADDR_EQ(enm->enm_addrlo, enm->enm_addrhi)) |
| 1023 | goto set_mib; |
| 1024 | IEEE80211_ADDR_COPY(sc->sc_mib_addr.aGroup_Addresses[n], |
| 1025 | enm->enm_addrlo); |
| 1026 | n++; |
| 1027 | ETHER_NEXT_MULTI(step, enm); |
| 1028 | } |
| 1029 | for (; n < AWI_GROUP_ADDR_SIZE; n++) |
| 1030 | memset(sc->sc_mib_addr.aGroup_Addresses[n], 0, |
| 1031 | IEEE80211_ADDR_LEN); |
| 1032 | sc->sc_mib_local.Accept_All_Multicast_Dis = 1; |
| 1033 | |
| 1034 | set_mib: |
| 1035 | if (sc->sc_mib_local.Accept_All_Multicast_Dis) |
| 1036 | ifp->if_flags &= ~IFF_ALLMULTI; |
| 1037 | else |
| 1038 | ifp->if_flags |= IFF_ALLMULTI; |
| 1039 | sc->sc_mib_mgt.Wep_Required = |
| 1040 | (sc->sc_ic.ic_flags & IEEE80211_F_PRIVACY) ? AWI_WEP_ON : AWI_WEP_OFF; |
| 1041 | |
| 1042 | if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || |
| 1043 | (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || |
| 1044 | (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MAC, AWI_WAIT)) || |
| 1045 | (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, AWI_WAIT)) || |
| 1046 | (error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_PHY, AWI_WAIT))) { |
| 1047 | DPRINTF(("awi_mode_init: MIB set failed: %d\n" , error)); |
| 1048 | return error; |
| 1049 | } |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | static void |
| 1054 | awi_rx_int(struct awi_softc *sc) |
| 1055 | { |
| 1056 | struct ieee80211com *ic = &sc->sc_ic; |
| 1057 | struct ifnet *ifp = &sc->sc_if; |
| 1058 | struct ieee80211_frame_min *wh; |
| 1059 | struct ieee80211_node *ni; |
| 1060 | u_int8_t state, rate, ; |
| 1061 | u_int16_t len; |
| 1062 | u_int32_t frame, next, rstamp, rxoff; |
| 1063 | struct mbuf *m; |
| 1064 | |
| 1065 | rxoff = sc->sc_rxdoff; |
| 1066 | for (;;) { |
| 1067 | state = awi_read_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE); |
| 1068 | if (state & AWI_RXD_ST_OWN) |
| 1069 | break; |
| 1070 | if (!(state & AWI_RXD_ST_CONSUMED)) { |
| 1071 | if (sc->sc_substate != AWI_ST_NONE) |
| 1072 | goto rx_next; |
| 1073 | if (state & AWI_RXD_ST_RXERROR) { |
| 1074 | ifp->if_ierrors++; |
| 1075 | goto rx_next; |
| 1076 | } |
| 1077 | len = awi_read_2(sc, rxoff + AWI_RXD_LEN); |
| 1078 | rate = awi_read_1(sc, rxoff + AWI_RXD_RATE); |
| 1079 | rssi = awi_read_1(sc, rxoff + AWI_RXD_RSSI); |
| 1080 | frame = awi_read_4(sc, rxoff + AWI_RXD_START_FRAME) & |
| 1081 | 0x7fff; |
| 1082 | rstamp = awi_read_4(sc, rxoff + AWI_RXD_LOCALTIME); |
| 1083 | m = awi_devget(sc, frame, len); |
| 1084 | if (m == NULL) { |
| 1085 | ifp->if_ierrors++; |
| 1086 | goto rx_next; |
| 1087 | } |
| 1088 | if (state & AWI_RXD_ST_LF) { |
| 1089 | /* TODO check my bss */ |
| 1090 | if (!(sc->sc_ic.ic_flags & IEEE80211_F_SIBSS) && |
| 1091 | sc->sc_ic.ic_state == IEEE80211_S_RUN) { |
| 1092 | sc->sc_rx_timer = 10; |
| 1093 | ifp->if_timer = 1; |
| 1094 | } |
| 1095 | if ((ifp->if_flags & IFF_DEBUG) && |
| 1096 | (ifp->if_flags & IFF_LINK2)) |
| 1097 | ieee80211_dump_pkt(m->m_data, m->m_len, |
| 1098 | rate / 5, rssi); |
| 1099 | if ((ifp->if_flags & IFF_LINK0) || |
| 1100 | sc->sc_adhoc_ap) |
| 1101 | m = awi_ether_modcap(sc, m); |
| 1102 | else |
| 1103 | m = m_pullup(m, sizeof(*wh)); |
| 1104 | if (m == NULL) { |
| 1105 | ifp->if_ierrors++; |
| 1106 | goto rx_next; |
| 1107 | } |
| 1108 | wh = mtod(m, struct ieee80211_frame_min *); |
| 1109 | ni = ieee80211_find_rxnode(ic, wh); |
| 1110 | ieee80211_input(ic, m, ni, rssi, rstamp); |
| 1111 | /* |
| 1112 | * The frame may have caused the |
| 1113 | * node to be marked for reclamation |
| 1114 | * (e.g. in response to a DEAUTH |
| 1115 | * message) so use release_node here |
| 1116 | * instead of unref_node. |
| 1117 | */ |
| 1118 | ieee80211_free_node(ni); |
| 1119 | } else |
| 1120 | sc->sc_rxpend = m; |
| 1121 | rx_next: |
| 1122 | state |= AWI_RXD_ST_CONSUMED; |
| 1123 | awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); |
| 1124 | } |
| 1125 | next = awi_read_4(sc, rxoff + AWI_RXD_NEXT); |
| 1126 | if (next & AWI_RXD_NEXT_LAST) |
| 1127 | break; |
| 1128 | /* make sure the next pointer is correct */ |
| 1129 | if (next != awi_read_4(sc, rxoff + AWI_RXD_NEXT)) |
| 1130 | break; |
| 1131 | state |= AWI_RXD_ST_OWN; |
| 1132 | awi_write_1(sc, rxoff + AWI_RXD_HOST_DESC_STATE, state); |
| 1133 | rxoff = next & 0x7fff; |
| 1134 | } |
| 1135 | sc->sc_rxdoff = rxoff; |
| 1136 | } |
| 1137 | |
| 1138 | static void |
| 1139 | awi_tx_int(struct awi_softc *sc) |
| 1140 | { |
| 1141 | struct ifnet *ifp = &sc->sc_if; |
| 1142 | u_int8_t flags; |
| 1143 | |
| 1144 | while (sc->sc_txdone != sc->sc_txnext) { |
| 1145 | flags = awi_read_1(sc, sc->sc_txdone + AWI_TXD_STATE); |
| 1146 | if ((flags & AWI_TXD_ST_OWN) || !(flags & AWI_TXD_ST_DONE)) |
| 1147 | break; |
| 1148 | if (flags & AWI_TXD_ST_ERROR) |
| 1149 | ifp->if_oerrors++; |
| 1150 | sc->sc_txdone = awi_read_4(sc, sc->sc_txdone + AWI_TXD_NEXT) & |
| 1151 | 0x7fff; |
| 1152 | } |
| 1153 | DPRINTF2(("awi_txint: txdone %d txnext %d txbase %d txend %d\n" , |
| 1154 | sc->sc_txdone, sc->sc_txnext, sc->sc_txbase, sc->sc_txend)); |
| 1155 | sc->sc_tx_timer = 0; |
| 1156 | ifp->if_flags &= ~IFF_OACTIVE; |
| 1157 | awi_start(ifp); |
| 1158 | } |
| 1159 | |
| 1160 | static struct mbuf * |
| 1161 | awi_devget(struct awi_softc *sc, u_int32_t off, u_int16_t len) |
| 1162 | { |
| 1163 | struct ifnet *ifp = &sc->sc_if; |
| 1164 | struct mbuf *m; |
| 1165 | struct mbuf *top, **mp; |
| 1166 | u_int tlen; |
| 1167 | |
| 1168 | top = sc->sc_rxpend; |
| 1169 | mp = ⊤ |
| 1170 | if (top != NULL) { |
| 1171 | sc->sc_rxpend = NULL; |
| 1172 | top->m_pkthdr.len += len; |
| 1173 | m = top; |
| 1174 | while (*mp != NULL) { |
| 1175 | m = *mp; |
| 1176 | mp = &m->m_next; |
| 1177 | } |
| 1178 | if (m->m_flags & M_EXT) |
| 1179 | tlen = m->m_ext.ext_size; |
| 1180 | else if (m->m_flags & M_PKTHDR) |
| 1181 | tlen = MHLEN; |
| 1182 | else |
| 1183 | tlen = MLEN; |
| 1184 | tlen -= m->m_len; |
| 1185 | if (tlen > len) |
| 1186 | tlen = len; |
| 1187 | awi_read_bytes(sc, off, mtod(m, u_int8_t *) + m->m_len, tlen); |
| 1188 | off += tlen; |
| 1189 | len -= tlen; |
| 1190 | } |
| 1191 | |
| 1192 | while (len > 0) { |
| 1193 | if (top == NULL) { |
| 1194 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 1195 | if (m == NULL) |
| 1196 | return NULL; |
| 1197 | m_set_rcvif(m, ifp); |
| 1198 | m->m_pkthdr.len = len; |
| 1199 | m->m_len = MHLEN; |
| 1200 | m->m_flags |= M_HASFCS; |
| 1201 | } else { |
| 1202 | MGET(m, M_DONTWAIT, MT_DATA); |
| 1203 | if (m == NULL) { |
| 1204 | m_freem(top); |
| 1205 | return NULL; |
| 1206 | } |
| 1207 | m->m_len = MLEN; |
| 1208 | } |
| 1209 | if (len >= MINCLSIZE) { |
| 1210 | MCLGET(m, M_DONTWAIT); |
| 1211 | if (m->m_flags & M_EXT) |
| 1212 | m->m_len = m->m_ext.ext_size; |
| 1213 | } |
| 1214 | if (top == NULL) { |
| 1215 | int hdrlen = sizeof(struct ieee80211_frame) + |
| 1216 | sizeof(struct llc); |
| 1217 | char *newdata = (char *) |
| 1218 | ALIGN(m->m_data + hdrlen) - hdrlen; |
| 1219 | m->m_len -= newdata - m->m_data; |
| 1220 | m->m_data = newdata; |
| 1221 | } |
| 1222 | if (m->m_len > len) |
| 1223 | m->m_len = len; |
| 1224 | awi_read_bytes(sc, off, mtod(m, u_int8_t *), m->m_len); |
| 1225 | off += m->m_len; |
| 1226 | len -= m->m_len; |
| 1227 | *mp = m; |
| 1228 | mp = &m->m_next; |
| 1229 | } |
| 1230 | return top; |
| 1231 | } |
| 1232 | |
| 1233 | /* |
| 1234 | * Initialize hardware and start firmware to accept commands. |
| 1235 | * Called everytime after power on firmware. |
| 1236 | */ |
| 1237 | |
| 1238 | static int |
| 1239 | awi_hw_init(struct awi_softc *sc) |
| 1240 | { |
| 1241 | u_int8_t status; |
| 1242 | u_int16_t intmask; |
| 1243 | int i, error; |
| 1244 | |
| 1245 | sc->sc_enab_intr = 0; |
| 1246 | awi_drvstate(sc, AWI_DRV_RESET); |
| 1247 | |
| 1248 | /* reset firmware */ |
| 1249 | am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_CORESET); |
| 1250 | DELAY(100); |
| 1251 | awi_write_1(sc, AWI_SELFTEST, 0); |
| 1252 | awi_write_1(sc, AWI_CMD, 0); |
| 1253 | awi_write_1(sc, AWI_BANNER, 0); |
| 1254 | am79c930_gcr_clearbits(&sc->sc_chip, AM79C930_GCR_CORESET); |
| 1255 | DELAY(100); |
| 1256 | |
| 1257 | /* wait for selftest completion */ |
| 1258 | for (i = 0; ; i++) { |
| 1259 | if (!device_is_active(sc->sc_dev)) |
| 1260 | return ENXIO; |
| 1261 | if (i >= AWI_SELFTEST_TIMEOUT*hz/1000) { |
| 1262 | printf("%s: failed to complete selftest (timeout)\n" , |
| 1263 | sc->sc_if.if_xname); |
| 1264 | return ENXIO; |
| 1265 | } |
| 1266 | status = awi_read_1(sc, AWI_SELFTEST); |
| 1267 | if ((status & 0xf0) == 0xf0) |
| 1268 | break; |
| 1269 | if (sc->sc_cansleep) { |
| 1270 | sc->sc_sleep_cnt++; |
| 1271 | (void)tsleep(sc, PWAIT, "awitst" , 1); |
| 1272 | sc->sc_sleep_cnt--; |
| 1273 | } else { |
| 1274 | DELAY(1000*1000/hz); |
| 1275 | } |
| 1276 | } |
| 1277 | if (status != AWI_SELFTEST_PASSED) { |
| 1278 | printf("%s: failed to complete selftest (code %x)\n" , |
| 1279 | sc->sc_if.if_xname, status); |
| 1280 | return ENXIO; |
| 1281 | } |
| 1282 | |
| 1283 | /* check banner to confirm firmware write it */ |
| 1284 | awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN); |
| 1285 | if (memcmp(sc->sc_banner, "PCnetMobile:" , 12) != 0) { |
| 1286 | printf("%s: failed to complete selftest (bad banner)\n" , |
| 1287 | sc->sc_if.if_xname); |
| 1288 | for (i = 0; i < AWI_BANNER_LEN; i++) |
| 1289 | printf("%s%02x" , i ? ":" : "\t" , sc->sc_banner[i]); |
| 1290 | printf("\n" ); |
| 1291 | return ENXIO; |
| 1292 | } |
| 1293 | |
| 1294 | /* initializing interrupt */ |
| 1295 | sc->sc_enab_intr = 1; |
| 1296 | error = awi_intr_lock(sc); |
| 1297 | if (error) |
| 1298 | return error; |
| 1299 | intmask = AWI_INT_GROGGY | AWI_INT_SCAN_CMPLT | |
| 1300 | AWI_INT_TX | AWI_INT_RX | AWI_INT_CMD; |
| 1301 | awi_write_1(sc, AWI_INTMASK, ~intmask & 0xff); |
| 1302 | awi_write_1(sc, AWI_INTMASK2, 0); |
| 1303 | awi_write_1(sc, AWI_INTSTAT, 0); |
| 1304 | awi_write_1(sc, AWI_INTSTAT2, 0); |
| 1305 | awi_intr_unlock(sc); |
| 1306 | am79c930_gcr_setbits(&sc->sc_chip, AM79C930_GCR_ENECINT); |
| 1307 | |
| 1308 | /* issuing interface test command */ |
| 1309 | error = awi_cmd(sc, AWI_CMD_NOP, AWI_WAIT); |
| 1310 | if (error) { |
| 1311 | printf("%s: failed to complete selftest" , |
| 1312 | sc->sc_if.if_xname); |
| 1313 | if (error == ENXIO) |
| 1314 | printf(" (no hardware)\n" ); |
| 1315 | else if (error != EWOULDBLOCK) |
| 1316 | printf(" (error %d)\n" , error); |
| 1317 | else if (sc->sc_cansleep) |
| 1318 | printf(" (lost interrupt)\n" ); |
| 1319 | else |
| 1320 | printf(" (command timeout)\n" ); |
| 1321 | return error; |
| 1322 | } |
| 1323 | |
| 1324 | /* Initialize VBM */ |
| 1325 | awi_write_1(sc, AWI_VBM_OFFSET, 0); |
| 1326 | awi_write_1(sc, AWI_VBM_LENGTH, 1); |
| 1327 | awi_write_1(sc, AWI_VBM_BITMAP, 0); |
| 1328 | return 0; |
| 1329 | } |
| 1330 | |
| 1331 | /* |
| 1332 | * Extract the factory default MIB value from firmware and assign the driver |
| 1333 | * default value. |
| 1334 | * Called once at attaching the interface. |
| 1335 | */ |
| 1336 | |
| 1337 | static int |
| 1338 | awi_init_mibs(struct awi_softc *sc) |
| 1339 | { |
| 1340 | int chan, i, error; |
| 1341 | struct ieee80211com *ic = &sc->sc_ic; |
| 1342 | struct awi_chanset *cs; |
| 1343 | |
| 1344 | if ((error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_LOCAL, AWI_WAIT)) || |
| 1345 | (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_ADDR, AWI_WAIT)) || |
| 1346 | (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MAC, AWI_WAIT)) || |
| 1347 | (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_MGT, AWI_WAIT)) || |
| 1348 | (error = awi_mib(sc, AWI_CMD_GET_MIB, AWI_MIB_PHY, AWI_WAIT))) { |
| 1349 | printf("%s: failed to get default mib value (error %d)\n" , |
| 1350 | sc->sc_if.if_xname, error); |
| 1351 | return error; |
| 1352 | } |
| 1353 | |
| 1354 | memset(&sc->sc_ic.ic_chan_avail, 0, sizeof(sc->sc_ic.ic_chan_avail)); |
| 1355 | for (cs = awi_chanset; ; cs++) { |
| 1356 | if (cs->cs_type == 0) { |
| 1357 | printf("%s: failed to set available channel\n" , |
| 1358 | sc->sc_if.if_xname); |
| 1359 | return ENXIO; |
| 1360 | } |
| 1361 | if (cs->cs_type == sc->sc_mib_phy.IEEE_PHY_Type && |
| 1362 | cs->cs_region == sc->sc_mib_phy.aCurrent_Reg_Domain) |
| 1363 | break; |
| 1364 | } |
| 1365 | if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { |
| 1366 | for (i = cs->cs_min; i <= cs->cs_max; i++) { |
| 1367 | chan = IEEE80211_FH_CHAN(i % 3 + 1, i); |
| 1368 | setbit(sc->sc_ic.ic_chan_avail, chan); |
| 1369 | /* XXX for FHSS, does frequency matter? */ |
| 1370 | ic->ic_channels[chan].ic_freq = 0; |
| 1371 | ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; |
| 1372 | /* |
| 1373 | * According to the IEEE 802.11 specification, |
| 1374 | * hop pattern parameter for FH phy should be |
| 1375 | * incremented by 3 for given hop chanset, i.e., |
| 1376 | * the chanset parameter is calculated for given |
| 1377 | * hop patter. However, BayStack 650 Access Points |
| 1378 | * apparently use fixed hop chanset parameter value |
| 1379 | * 1 for any hop pattern. So we also try this |
| 1380 | * combination of hop chanset and pattern. |
| 1381 | */ |
| 1382 | chan = IEEE80211_FH_CHAN(1, i); |
| 1383 | setbit(sc->sc_ic.ic_chan_avail, chan); |
| 1384 | ic->ic_channels[chan].ic_freq = 0; /* XXX */ |
| 1385 | ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_FHSS; |
| 1386 | } |
| 1387 | } else { |
| 1388 | for (i = cs->cs_min; i <= cs->cs_max; i++) { |
| 1389 | setbit(sc->sc_ic.ic_chan_avail, i); |
| 1390 | ic->ic_channels[i].ic_freq = |
| 1391 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); |
| 1392 | ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; |
| 1393 | } |
| 1394 | } |
| 1395 | sc->sc_cur_chan = cs->cs_def; |
| 1396 | ic->ic_ibss_chan = &ic->ic_channels[cs->cs_def]; |
| 1397 | |
| 1398 | sc->sc_mib_local.Fragmentation_Dis = 1; |
| 1399 | sc->sc_mib_local.Add_PLCP_Dis = 0; |
| 1400 | sc->sc_mib_local.MAC_Hdr_Prsv = 0; |
| 1401 | sc->sc_mib_local.Rx_Mgmt_Que_En = 0; |
| 1402 | sc->sc_mib_local.Re_Assembly_Dis = 1; |
| 1403 | sc->sc_mib_local.Strip_PLCP_Dis = 0; |
| 1404 | sc->sc_mib_local.Power_Saving_Mode_Dis = 1; |
| 1405 | sc->sc_mib_local.Accept_All_Multicast_Dis = 1; |
| 1406 | sc->sc_mib_local.Check_Seq_Cntl_Dis = 0; |
| 1407 | sc->sc_mib_local.Flush_CFP_Queue_On_CF_End = 0; |
| 1408 | sc->sc_mib_local.Network_Mode = 1; |
| 1409 | sc->sc_mib_local.PWD_Lvl = 0; |
| 1410 | sc->sc_mib_local.CFP_Mode = 0; |
| 1411 | |
| 1412 | /* allocate buffers */ |
| 1413 | sc->sc_txbase = AWI_BUFFERS; |
| 1414 | sc->sc_txend = sc->sc_txbase + |
| 1415 | (AWI_TXD_SIZE + sizeof(struct ieee80211_frame) + |
| 1416 | sizeof(struct ether_header) + ETHERMTU) * AWI_NTXBUFS; |
| 1417 | LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Offset, sc->sc_txbase); |
| 1418 | LE_WRITE_4(&sc->sc_mib_local.Tx_Buffer_Size, |
| 1419 | sc->sc_txend - sc->sc_txbase); |
| 1420 | LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Offset, sc->sc_txend); |
| 1421 | LE_WRITE_4(&sc->sc_mib_local.Rx_Buffer_Size, |
| 1422 | AWI_BUFFERS_END - sc->sc_txend); |
| 1423 | sc->sc_mib_local.Acting_as_AP = 0; |
| 1424 | sc->sc_mib_local.Fill_CFP = 0; |
| 1425 | |
| 1426 | memset(&sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE); |
| 1427 | sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID; |
| 1428 | |
| 1429 | sc->sc_mib_mgt.aPower_Mgt_Mode = 0; |
| 1430 | sc->sc_mib_mgt.aDTIM_Period = 1; |
| 1431 | LE_WRITE_2(&sc->sc_mib_mgt.aATIM_Window, 0); |
| 1432 | return 0; |
| 1433 | } |
| 1434 | |
| 1435 | static int |
| 1436 | awi_mib(struct awi_softc *sc, u_int8_t cmd, u_int8_t mib, int wflag) |
| 1437 | { |
| 1438 | int error; |
| 1439 | u_int8_t size, *ptr; |
| 1440 | |
| 1441 | switch (mib) { |
| 1442 | case AWI_MIB_LOCAL: |
| 1443 | ptr = (u_int8_t *)&sc->sc_mib_local; |
| 1444 | size = sizeof(sc->sc_mib_local); |
| 1445 | break; |
| 1446 | case AWI_MIB_ADDR: |
| 1447 | ptr = (u_int8_t *)&sc->sc_mib_addr; |
| 1448 | size = sizeof(sc->sc_mib_addr); |
| 1449 | break; |
| 1450 | case AWI_MIB_MAC: |
| 1451 | ptr = (u_int8_t *)&sc->sc_mib_mac; |
| 1452 | size = sizeof(sc->sc_mib_mac); |
| 1453 | break; |
| 1454 | case AWI_MIB_STAT: |
| 1455 | ptr = (u_int8_t *)&sc->sc_mib_stat; |
| 1456 | size = sizeof(sc->sc_mib_stat); |
| 1457 | break; |
| 1458 | case AWI_MIB_MGT: |
| 1459 | ptr = (u_int8_t *)&sc->sc_mib_mgt; |
| 1460 | size = sizeof(sc->sc_mib_mgt); |
| 1461 | break; |
| 1462 | case AWI_MIB_PHY: |
| 1463 | ptr = (u_int8_t *)&sc->sc_mib_phy; |
| 1464 | size = sizeof(sc->sc_mib_phy); |
| 1465 | break; |
| 1466 | default: |
| 1467 | return EINVAL; |
| 1468 | } |
| 1469 | if (sc->sc_cmd_inprog) { |
| 1470 | if ((error = awi_cmd_wait(sc)) != 0) { |
| 1471 | if (error == EWOULDBLOCK) { |
| 1472 | DPRINTF(("awi_mib: cmd %d inprog" , |
| 1473 | sc->sc_cmd_inprog)); |
| 1474 | } |
| 1475 | return error; |
| 1476 | } |
| 1477 | } |
| 1478 | sc->sc_cmd_inprog = cmd; |
| 1479 | if (cmd == AWI_CMD_SET_MIB) |
| 1480 | awi_write_bytes(sc, AWI_CA_MIB_DATA, ptr, size); |
| 1481 | awi_write_1(sc, AWI_CA_MIB_TYPE, mib); |
| 1482 | awi_write_1(sc, AWI_CA_MIB_SIZE, size); |
| 1483 | awi_write_1(sc, AWI_CA_MIB_INDEX, 0); |
| 1484 | if ((error = awi_cmd(sc, cmd, wflag)) != 0) |
| 1485 | return error; |
| 1486 | if (cmd == AWI_CMD_GET_MIB) { |
| 1487 | awi_read_bytes(sc, AWI_CA_MIB_DATA, ptr, size); |
| 1488 | #ifdef AWI_DEBUG |
| 1489 | if (awi_debug) { |
| 1490 | int i; |
| 1491 | |
| 1492 | printf("awi_mib: #%d:" , mib); |
| 1493 | for (i = 0; i < size; i++) |
| 1494 | printf(" %02x" , ptr[i]); |
| 1495 | printf("\n" ); |
| 1496 | } |
| 1497 | #endif |
| 1498 | } |
| 1499 | return 0; |
| 1500 | } |
| 1501 | |
| 1502 | static int |
| 1503 | awi_cmd(struct awi_softc *sc, u_int8_t cmd, int wflag) |
| 1504 | { |
| 1505 | u_int8_t status; |
| 1506 | int error = 0; |
| 1507 | #ifdef AWI_DEBUG |
| 1508 | static const char *cmdname[] = { |
| 1509 | "IDLE" , "NOP" , "SET_MIB" , "INIT_TX" , "FLUSH_TX" , "INIT_RX" , |
| 1510 | "KILL_RX" , "SLEEP" , "WAKE" , "GET_MIB" , "SCAN" , "SYNC" , "RESUME" |
| 1511 | }; |
| 1512 | #endif |
| 1513 | |
| 1514 | #ifdef AWI_DEBUG |
| 1515 | if (awi_debug > 1) { |
| 1516 | if (cmd >= sizeof(cmdname)/sizeof(cmdname[0])) |
| 1517 | printf("awi_cmd: #%d" , cmd); |
| 1518 | else |
| 1519 | printf("awi_cmd: %s" , cmdname[cmd]); |
| 1520 | printf(" %s\n" , wflag == AWI_NOWAIT ? "nowait" : "wait" ); |
| 1521 | } |
| 1522 | #endif |
| 1523 | sc->sc_cmd_inprog = cmd; |
| 1524 | awi_write_1(sc, AWI_CMD_STATUS, AWI_STAT_IDLE); |
| 1525 | awi_write_1(sc, AWI_CMD, cmd); |
| 1526 | if (wflag == AWI_NOWAIT) |
| 1527 | return EINPROGRESS; |
| 1528 | if ((error = awi_cmd_wait(sc)) != 0) |
| 1529 | return error; |
| 1530 | status = awi_read_1(sc, AWI_CMD_STATUS); |
| 1531 | awi_write_1(sc, AWI_CMD, 0); |
| 1532 | switch (status) { |
| 1533 | case AWI_STAT_OK: |
| 1534 | break; |
| 1535 | case AWI_STAT_BADPARM: |
| 1536 | return EINVAL; |
| 1537 | default: |
| 1538 | printf("%s: command %d failed %x\n" , |
| 1539 | sc->sc_if.if_xname, cmd, status); |
| 1540 | return ENXIO; |
| 1541 | } |
| 1542 | return 0; |
| 1543 | } |
| 1544 | |
| 1545 | static int |
| 1546 | awi_cmd_wait(struct awi_softc *sc) |
| 1547 | { |
| 1548 | int i, error = 0; |
| 1549 | |
| 1550 | i = 0; |
| 1551 | while (sc->sc_cmd_inprog) { |
| 1552 | if (!device_is_active(sc->sc_dev)) |
| 1553 | return ENXIO; |
| 1554 | if (awi_read_1(sc, AWI_CMD) != sc->sc_cmd_inprog) { |
| 1555 | printf("%s: failed to access hardware\n" , |
| 1556 | sc->sc_if.if_xname); |
| 1557 | config_deactivate(sc->sc_dev); |
| 1558 | return ENXIO; |
| 1559 | } |
| 1560 | if (sc->sc_cansleep) { |
| 1561 | sc->sc_sleep_cnt++; |
| 1562 | error = tsleep(sc, PWAIT, "awicmd" , |
| 1563 | AWI_CMD_TIMEOUT*hz/1000); |
| 1564 | sc->sc_sleep_cnt--; |
| 1565 | } else { |
| 1566 | if (awi_read_1(sc, AWI_CMD_STATUS) != AWI_STAT_IDLE) { |
| 1567 | awi_cmd_done(sc); |
| 1568 | break; |
| 1569 | } |
| 1570 | if (i++ >= AWI_CMD_TIMEOUT*1000/10) |
| 1571 | error = EWOULDBLOCK; |
| 1572 | else |
| 1573 | DELAY(10); |
| 1574 | } |
| 1575 | if (error) |
| 1576 | break; |
| 1577 | } |
| 1578 | if (error) { |
| 1579 | DPRINTF(("awi_cmd_wait: cmd 0x%x, error %d\n" , |
| 1580 | sc->sc_cmd_inprog, error)); |
| 1581 | } |
| 1582 | return error; |
| 1583 | } |
| 1584 | |
| 1585 | static void |
| 1586 | awi_cmd_done(struct awi_softc *sc) |
| 1587 | { |
| 1588 | u_int8_t cmd, status; |
| 1589 | |
| 1590 | status = awi_read_1(sc, AWI_CMD_STATUS); |
| 1591 | if (status == AWI_STAT_IDLE) |
| 1592 | return; /* stray interrupt */ |
| 1593 | |
| 1594 | cmd = sc->sc_cmd_inprog; |
| 1595 | sc->sc_cmd_inprog = 0; |
| 1596 | wakeup(sc); |
| 1597 | awi_write_1(sc, AWI_CMD, 0); |
| 1598 | |
| 1599 | if (status != AWI_STAT_OK) { |
| 1600 | printf("%s: command %d failed %x\n" , |
| 1601 | sc->sc_if.if_xname, cmd, status); |
| 1602 | sc->sc_substate = AWI_ST_NONE; |
| 1603 | return; |
| 1604 | } |
| 1605 | if (sc->sc_substate != AWI_ST_NONE) |
| 1606 | (void)ieee80211_new_state(&sc->sc_ic, sc->sc_nstate, -1); |
| 1607 | } |
| 1608 | |
| 1609 | static int |
| 1610 | awi_next_txd(struct awi_softc *sc, int len, u_int32_t *framep, u_int32_t *ntxdp) |
| 1611 | { |
| 1612 | u_int32_t txd, ntxd, frame; |
| 1613 | |
| 1614 | txd = sc->sc_txnext; |
| 1615 | frame = txd + AWI_TXD_SIZE; |
| 1616 | if (frame + len > sc->sc_txend) |
| 1617 | frame = sc->sc_txbase; |
| 1618 | ntxd = frame + len; |
| 1619 | if (ntxd + AWI_TXD_SIZE > sc->sc_txend) |
| 1620 | ntxd = sc->sc_txbase; |
| 1621 | *framep = frame; |
| 1622 | *ntxdp = ntxd; |
| 1623 | /* |
| 1624 | * Determine if there are any room in ring buffer. |
| 1625 | * --- send wait, === new data, +++ conflict (ENOBUFS) |
| 1626 | * base........................end |
| 1627 | * done----txd=====ntxd OK |
| 1628 | * --txd=====done++++ntxd-- full |
| 1629 | * --txd=====ntxd done-- OK |
| 1630 | * ==ntxd done----txd=== OK |
| 1631 | * ==done++++ntxd----txd=== full |
| 1632 | * ++ntxd txd=====done++ full |
| 1633 | */ |
| 1634 | if (txd < ntxd) { |
| 1635 | if (txd < sc->sc_txdone && ntxd + AWI_TXD_SIZE > sc->sc_txdone) |
| 1636 | return ENOBUFS; |
| 1637 | } else { |
| 1638 | if (txd < sc->sc_txdone || ntxd + AWI_TXD_SIZE > sc->sc_txdone) |
| 1639 | return ENOBUFS; |
| 1640 | } |
| 1641 | return 0; |
| 1642 | } |
| 1643 | |
| 1644 | static int |
| 1645 | awi_lock(struct awi_softc *sc) |
| 1646 | { |
| 1647 | int error = 0; |
| 1648 | |
| 1649 | if (curlwp == NULL) |
| 1650 | { |
| 1651 | /* |
| 1652 | * XXX |
| 1653 | * Though driver ioctl should be called with context, |
| 1654 | * KAME ipv6 stack calls ioctl in interrupt for now. |
| 1655 | * We simply abort the request if there are other |
| 1656 | * ioctl requests in progress. |
| 1657 | */ |
| 1658 | if (sc->sc_busy) { |
| 1659 | if (!device_is_active(sc->sc_dev)) |
| 1660 | return ENXIO; |
| 1661 | return EWOULDBLOCK; |
| 1662 | } |
| 1663 | sc->sc_busy = 1; |
| 1664 | sc->sc_cansleep = 0; |
| 1665 | return 0; |
| 1666 | } |
| 1667 | while (sc->sc_busy) { |
| 1668 | if (!device_is_active(sc->sc_dev)) |
| 1669 | return ENXIO; |
| 1670 | sc->sc_sleep_cnt++; |
| 1671 | error = tsleep(sc, PWAIT | PCATCH, "awilck" , 0); |
| 1672 | sc->sc_sleep_cnt--; |
| 1673 | if (error) |
| 1674 | return error; |
| 1675 | } |
| 1676 | sc->sc_busy = 1; |
| 1677 | sc->sc_cansleep = 1; |
| 1678 | return 0; |
| 1679 | } |
| 1680 | |
| 1681 | static void |
| 1682 | awi_unlock(struct awi_softc *sc) |
| 1683 | { |
| 1684 | sc->sc_busy = 0; |
| 1685 | sc->sc_cansleep = 0; |
| 1686 | if (sc->sc_sleep_cnt) |
| 1687 | wakeup(sc); |
| 1688 | } |
| 1689 | |
| 1690 | static int |
| 1691 | awi_intr_lock(struct awi_softc *sc) |
| 1692 | { |
| 1693 | u_int8_t status; |
| 1694 | int i, retry; |
| 1695 | |
| 1696 | status = 1; |
| 1697 | for (retry = 0; retry < 10; retry++) { |
| 1698 | for (i = 0; i < AWI_LOCKOUT_TIMEOUT*1000/5; i++) { |
| 1699 | if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) |
| 1700 | break; |
| 1701 | DELAY(5); |
| 1702 | } |
| 1703 | if (status != 0) |
| 1704 | break; |
| 1705 | awi_write_1(sc, AWI_LOCKOUT_MAC, 1); |
| 1706 | if ((status = awi_read_1(sc, AWI_LOCKOUT_HOST)) == 0) |
| 1707 | break; |
| 1708 | awi_write_1(sc, AWI_LOCKOUT_MAC, 0); |
| 1709 | } |
| 1710 | if (status != 0) { |
| 1711 | printf("%s: failed to lock interrupt\n" , |
| 1712 | sc->sc_if.if_xname); |
| 1713 | return ENXIO; |
| 1714 | } |
| 1715 | return 0; |
| 1716 | } |
| 1717 | |
| 1718 | static void |
| 1719 | awi_intr_unlock(struct awi_softc *sc) |
| 1720 | { |
| 1721 | |
| 1722 | awi_write_1(sc, AWI_LOCKOUT_MAC, 0); |
| 1723 | } |
| 1724 | |
| 1725 | static int |
| 1726 | awi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) |
| 1727 | { |
| 1728 | struct ifnet *ifp = ic->ic_ifp; |
| 1729 | struct awi_softc *sc = ifp->if_softc; |
| 1730 | struct ieee80211_node *ni; |
| 1731 | int error; |
| 1732 | u_int8_t newmode; |
| 1733 | enum ieee80211_state ostate; |
| 1734 | #ifdef AWI_DEBUG |
| 1735 | static const char *stname[] = |
| 1736 | { "INIT" , "SCAN" , "AUTH" , "ASSOC" , "RUN" }; |
| 1737 | static const char *substname[] = |
| 1738 | { "NONE" , "SCAN_INIT" , "SCAN_SETMIB" , "SCAN_SCCMD" , |
| 1739 | "SUB_INIT" , "SUB_SETSS" , "SUB_SYNC" }; |
| 1740 | #endif /* AWI_DEBUG */ |
| 1741 | |
| 1742 | ostate = ic->ic_state; |
| 1743 | DPRINTF(("awi_newstate: %s (%s/%s) -> %s\n" , stname[ostate], |
| 1744 | stname[sc->sc_nstate], substname[sc->sc_substate], stname[nstate])); |
| 1745 | |
| 1746 | /* set LED */ |
| 1747 | switch (nstate) { |
| 1748 | case IEEE80211_S_INIT: |
| 1749 | awi_drvstate(sc, AWI_DRV_RESET); |
| 1750 | break; |
| 1751 | case IEEE80211_S_SCAN: |
| 1752 | if (ic->ic_opmode == IEEE80211_M_IBSS || |
| 1753 | ic->ic_opmode == IEEE80211_M_AHDEMO) |
| 1754 | awi_drvstate(sc, AWI_DRV_ADHSC); |
| 1755 | else |
| 1756 | awi_drvstate(sc, AWI_DRV_INFSY); |
| 1757 | break; |
| 1758 | case IEEE80211_S_AUTH: |
| 1759 | awi_drvstate(sc, AWI_DRV_INFSY); |
| 1760 | break; |
| 1761 | case IEEE80211_S_ASSOC: |
| 1762 | awi_drvstate(sc, AWI_DRV_INFAUTH); |
| 1763 | break; |
| 1764 | case IEEE80211_S_RUN: |
| 1765 | if (ic->ic_opmode == IEEE80211_M_IBSS || |
| 1766 | ic->ic_opmode == IEEE80211_M_AHDEMO) |
| 1767 | awi_drvstate(sc, AWI_DRV_ADHSY); |
| 1768 | else |
| 1769 | awi_drvstate(sc, AWI_DRV_INFASSOC); |
| 1770 | break; |
| 1771 | } |
| 1772 | |
| 1773 | if (nstate == IEEE80211_S_INIT) { |
| 1774 | sc->sc_substate = AWI_ST_NONE; |
| 1775 | ic->ic_flags &= ~IEEE80211_F_SIBSS; |
| 1776 | return (*sc->sc_newstate)(ic, nstate, arg); |
| 1777 | } |
| 1778 | |
| 1779 | /* state transition */ |
| 1780 | if (nstate == IEEE80211_S_SCAN) { |
| 1781 | /* SCAN substate */ |
| 1782 | if (sc->sc_substate == AWI_ST_NONE) { |
| 1783 | sc->sc_nstate = nstate; /* next state in transition */ |
| 1784 | sc->sc_substate = AWI_ST_SCAN_INIT; |
| 1785 | } |
| 1786 | switch (sc->sc_substate) { |
| 1787 | case AWI_ST_SCAN_INIT: |
| 1788 | sc->sc_substate = AWI_ST_SCAN_SETMIB; |
| 1789 | switch (ostate) { |
| 1790 | case IEEE80211_S_RUN: |
| 1791 | /* beacon miss */ |
| 1792 | if (ifp->if_flags & IFF_DEBUG) |
| 1793 | printf("%s: no recent beacons from %s;" |
| 1794 | " rescanning\n" , |
| 1795 | ifp->if_xname, |
| 1796 | ether_sprintf(ic->ic_bss->ni_bssid)); |
| 1797 | /* FALLTHRU */ |
| 1798 | case IEEE80211_S_AUTH: |
| 1799 | case IEEE80211_S_ASSOC: |
| 1800 | case IEEE80211_S_INIT: |
| 1801 | ieee80211_begin_scan(ic, 1); |
| 1802 | /* FALLTHRU */ |
| 1803 | case IEEE80211_S_SCAN: |
| 1804 | /* scan next */ |
| 1805 | break; |
| 1806 | } |
| 1807 | if (ic->ic_flags & IEEE80211_F_ASCAN) |
| 1808 | newmode = AWI_SCAN_ACTIVE; |
| 1809 | else |
| 1810 | newmode = AWI_SCAN_PASSIVE; |
| 1811 | if (sc->sc_mib_mgt.aScan_Mode != newmode) { |
| 1812 | sc->sc_mib_mgt.aScan_Mode = newmode; |
| 1813 | if ((error = awi_mib(sc, AWI_CMD_SET_MIB, |
| 1814 | AWI_MIB_MGT, AWI_NOWAIT)) != 0) |
| 1815 | break; |
| 1816 | } |
| 1817 | /* FALLTHRU */ |
| 1818 | case AWI_ST_SCAN_SETMIB: |
| 1819 | sc->sc_substate = AWI_ST_SCAN_SCCMD; |
| 1820 | if (sc->sc_cmd_inprog) { |
| 1821 | if ((error = awi_cmd_wait(sc)) != 0) |
| 1822 | break; |
| 1823 | } |
| 1824 | sc->sc_cmd_inprog = AWI_CMD_SCAN; |
| 1825 | ni = ic->ic_bss; |
| 1826 | awi_write_2(sc, AWI_CA_SCAN_DURATION, |
| 1827 | (ic->ic_flags & IEEE80211_F_ASCAN) ? |
| 1828 | AWI_ASCAN_DURATION : AWI_PSCAN_DURATION); |
| 1829 | if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { |
| 1830 | awi_write_1(sc, AWI_CA_SCAN_SET, |
| 1831 | IEEE80211_FH_CHANSET( |
| 1832 | ieee80211_chan2ieee(ic, ni->ni_chan))); |
| 1833 | awi_write_1(sc, AWI_CA_SCAN_PATTERN, |
| 1834 | IEEE80211_FH_CHANPAT( |
| 1835 | ieee80211_chan2ieee(ic, ni->ni_chan))); |
| 1836 | awi_write_1(sc, AWI_CA_SCAN_IDX, 1); |
| 1837 | } else { |
| 1838 | awi_write_1(sc, AWI_CA_SCAN_SET, |
| 1839 | ieee80211_chan2ieee(ic, ni->ni_chan)); |
| 1840 | awi_write_1(sc, AWI_CA_SCAN_PATTERN, 0); |
| 1841 | awi_write_1(sc, AWI_CA_SCAN_IDX, 0); |
| 1842 | } |
| 1843 | awi_write_1(sc, AWI_CA_SCAN_SUSP, 0); |
| 1844 | sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); |
| 1845 | if ((error = awi_cmd(sc, AWI_CMD_SCAN, AWI_NOWAIT)) |
| 1846 | != 0) |
| 1847 | break; |
| 1848 | /* FALLTHRU */ |
| 1849 | case AWI_ST_SCAN_SCCMD: |
| 1850 | ic->ic_state = nstate; |
| 1851 | sc->sc_substate = AWI_ST_NONE; |
| 1852 | error = EINPROGRESS; |
| 1853 | break; |
| 1854 | default: |
| 1855 | DPRINTF(("awi_newstate: unexpected state %s/%s\n" , |
| 1856 | stname[nstate], substname[sc->sc_substate])); |
| 1857 | sc->sc_substate = AWI_ST_NONE; |
| 1858 | error = EIO; |
| 1859 | break; |
| 1860 | } |
| 1861 | goto out; |
| 1862 | } |
| 1863 | |
| 1864 | if (ostate == IEEE80211_S_SCAN) { |
| 1865 | /* set SSID and channel */ |
| 1866 | /* substate */ |
| 1867 | if (sc->sc_substate == AWI_ST_NONE) { |
| 1868 | sc->sc_nstate = nstate; /* next state in transition */ |
| 1869 | sc->sc_substate = AWI_ST_SUB_INIT; |
| 1870 | } |
| 1871 | ni = ic->ic_bss; |
| 1872 | switch (sc->sc_substate) { |
| 1873 | case AWI_ST_SUB_INIT: |
| 1874 | sc->sc_substate = AWI_ST_SUB_SETSS; |
| 1875 | IEEE80211_ADDR_COPY(&sc->sc_mib_mgt.aCurrent_BSS_ID, |
| 1876 | ni->ni_bssid); |
| 1877 | memset(&sc->sc_mib_mgt.aCurrent_ESS_ID, 0, |
| 1878 | AWI_ESS_ID_SIZE); |
| 1879 | sc->sc_mib_mgt.aCurrent_ESS_ID[0] = |
| 1880 | IEEE80211_ELEMID_SSID; |
| 1881 | sc->sc_mib_mgt.aCurrent_ESS_ID[1] = ni->ni_esslen; |
| 1882 | memcpy(&sc->sc_mib_mgt.aCurrent_ESS_ID[2], |
| 1883 | ni->ni_essid, ni->ni_esslen); |
| 1884 | LE_WRITE_2(&sc->sc_mib_mgt.aBeacon_Period, |
| 1885 | ni->ni_intval); |
| 1886 | if ((error = awi_mib(sc, AWI_CMD_SET_MIB, AWI_MIB_MGT, |
| 1887 | AWI_NOWAIT)) != 0) |
| 1888 | break; |
| 1889 | /* FALLTHRU */ |
| 1890 | case AWI_ST_SUB_SETSS: |
| 1891 | sc->sc_substate = AWI_ST_SUB_SYNC; |
| 1892 | if (sc->sc_cmd_inprog) { |
| 1893 | if ((error = awi_cmd_wait(sc)) != 0) |
| 1894 | break; |
| 1895 | } |
| 1896 | sc->sc_cmd_inprog = AWI_CMD_SYNC; |
| 1897 | if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) { |
| 1898 | awi_write_1(sc, AWI_CA_SYNC_SET, |
| 1899 | IEEE80211_FH_CHANSET( |
| 1900 | ieee80211_chan2ieee(ic, ni->ni_chan))); |
| 1901 | awi_write_1(sc, AWI_CA_SYNC_PATTERN, |
| 1902 | IEEE80211_FH_CHANPAT( |
| 1903 | ieee80211_chan2ieee(ic, ni->ni_chan))); |
| 1904 | awi_write_1(sc, AWI_CA_SYNC_IDX, |
| 1905 | ni->ni_fhindex); |
| 1906 | awi_write_2(sc, AWI_CA_SYNC_DWELL, |
| 1907 | ni->ni_fhdwell); |
| 1908 | } else { |
| 1909 | awi_write_1(sc, AWI_CA_SYNC_SET, |
| 1910 | ieee80211_chan2ieee(ic, ni->ni_chan)); |
| 1911 | awi_write_1(sc, AWI_CA_SYNC_PATTERN, 0); |
| 1912 | awi_write_1(sc, AWI_CA_SYNC_IDX, 0); |
| 1913 | awi_write_2(sc, AWI_CA_SYNC_DWELL, 0); |
| 1914 | } |
| 1915 | if (ic->ic_flags & IEEE80211_F_SIBSS) { |
| 1916 | memset(&ni->ni_tstamp, 0, |
| 1917 | sizeof(ni->ni_tstamp)); |
| 1918 | ni->ni_rstamp = 0; |
| 1919 | awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 1); |
| 1920 | } else |
| 1921 | awi_write_1(sc, AWI_CA_SYNC_STARTBSS, 0); |
| 1922 | awi_write_2(sc, AWI_CA_SYNC_MBZ, 0); |
| 1923 | awi_write_bytes(sc, AWI_CA_SYNC_TIMESTAMP, |
| 1924 | ni->ni_tstamp.data, sizeof(ni->ni_tstamp.data)); |
| 1925 | awi_write_4(sc, AWI_CA_SYNC_REFTIME, ni->ni_rstamp); |
| 1926 | sc->sc_cur_chan = ieee80211_chan2ieee(ic, ni->ni_chan); |
| 1927 | if ((error = awi_cmd(sc, AWI_CMD_SYNC, AWI_NOWAIT)) |
| 1928 | != 0) |
| 1929 | break; |
| 1930 | /* FALLTHRU */ |
| 1931 | case AWI_ST_SUB_SYNC: |
| 1932 | sc->sc_substate = AWI_ST_NONE; |
| 1933 | if (ic->ic_flags & IEEE80211_F_SIBSS) { |
| 1934 | if ((error = awi_mib(sc, AWI_CMD_GET_MIB, |
| 1935 | AWI_MIB_MGT, AWI_WAIT)) != 0) |
| 1936 | break; |
| 1937 | IEEE80211_ADDR_COPY(ni->ni_bssid, |
| 1938 | &sc->sc_mib_mgt.aCurrent_BSS_ID); |
| 1939 | } else { |
| 1940 | if (nstate == IEEE80211_S_RUN) { |
| 1941 | sc->sc_rx_timer = 10; |
| 1942 | ifp->if_timer = 1; |
| 1943 | } |
| 1944 | } |
| 1945 | error = 0; |
| 1946 | break; |
| 1947 | default: |
| 1948 | DPRINTF(("awi_newstate: unexpected state %s/%s\n" , |
| 1949 | stname[nstate], substname[sc->sc_substate])); |
| 1950 | sc->sc_substate = AWI_ST_NONE; |
| 1951 | error = EIO; |
| 1952 | break; |
| 1953 | } |
| 1954 | goto out; |
| 1955 | } |
| 1956 | |
| 1957 | sc->sc_substate = AWI_ST_NONE; |
| 1958 | |
| 1959 | return (*sc->sc_newstate)(ic, nstate, arg); |
| 1960 | out: |
| 1961 | if (error != 0) { |
| 1962 | if (error == EINPROGRESS) |
| 1963 | error = 0; |
| 1964 | return error; |
| 1965 | } |
| 1966 | return (*sc->sc_newstate)(ic, nstate, arg); |
| 1967 | } |
| 1968 | |
| 1969 | static void |
| 1970 | awi_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0, |
| 1971 | struct ieee80211_node *ni, |
| 1972 | int subtype, int , u_int32_t rstamp) |
| 1973 | { |
| 1974 | struct awi_softc *sc = ic->ic_ifp->if_softc; |
| 1975 | |
| 1976 | /* probe request is handled by hardware */ |
| 1977 | if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_REQ) |
| 1978 | return; |
| 1979 | (*sc->sc_recv_mgmt)(ic, m0, ni, subtype, rssi, rstamp); |
| 1980 | } |
| 1981 | |
| 1982 | static int |
| 1983 | awi_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, |
| 1984 | int type, int arg) |
| 1985 | { |
| 1986 | struct awi_softc *sc = ic->ic_ifp->if_softc; |
| 1987 | |
| 1988 | /* probe request is handled by hardware */ |
| 1989 | if (type == IEEE80211_FC0_SUBTYPE_PROBE_REQ) |
| 1990 | return 0; |
| 1991 | return (*sc->sc_send_mgmt)(ic, ni, type, arg); |
| 1992 | } |
| 1993 | |
| 1994 | static struct mbuf * |
| 1995 | awi_ether_encap(struct awi_softc *sc, struct mbuf *m) |
| 1996 | { |
| 1997 | struct ieee80211com *ic = &sc->sc_ic; |
| 1998 | struct ieee80211_node *ni = ic->ic_bss; |
| 1999 | struct ether_header *eh; |
| 2000 | struct ieee80211_frame *wh; |
| 2001 | |
| 2002 | if (m->m_len < sizeof(struct ether_header)) { |
| 2003 | m = m_pullup(m, sizeof(struct ether_header)); |
| 2004 | if (m == NULL) |
| 2005 | return NULL; |
| 2006 | } |
| 2007 | eh = mtod(m, struct ether_header *); |
| 2008 | M_PREPEND(m, sizeof(struct ieee80211_frame), M_DONTWAIT); |
| 2009 | if (m == NULL) |
| 2010 | return NULL; |
| 2011 | wh = mtod(m, struct ieee80211_frame *); |
| 2012 | wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; |
| 2013 | *(u_int16_t *)wh->i_dur = 0; |
| 2014 | *(u_int16_t *)wh->i_seq = |
| 2015 | htole16(ni->ni_txseqs[0] << IEEE80211_SEQ_SEQ_SHIFT); |
| 2016 | ni->ni_txseqs[0]++; |
| 2017 | if (ic->ic_opmode == IEEE80211_M_IBSS || |
| 2018 | ic->ic_opmode == IEEE80211_M_AHDEMO) { |
| 2019 | wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; |
| 2020 | if (sc->sc_adhoc_ap) |
| 2021 | IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_macaddr); |
| 2022 | else |
| 2023 | IEEE80211_ADDR_COPY(wh->i_addr1, eh->ether_dhost); |
| 2024 | IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); |
| 2025 | IEEE80211_ADDR_COPY(wh->i_addr3, ni->ni_bssid); |
| 2026 | } else { |
| 2027 | wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; |
| 2028 | IEEE80211_ADDR_COPY(wh->i_addr1, ni->ni_bssid); |
| 2029 | IEEE80211_ADDR_COPY(wh->i_addr2, eh->ether_shost); |
| 2030 | IEEE80211_ADDR_COPY(wh->i_addr3, eh->ether_dhost); |
| 2031 | } |
| 2032 | return m; |
| 2033 | } |
| 2034 | |
| 2035 | static struct mbuf * |
| 2036 | awi_ether_modcap(struct awi_softc *sc, struct mbuf *m) |
| 2037 | { |
| 2038 | struct ieee80211com *ic = &sc->sc_ic; |
| 2039 | struct ether_header eh; |
| 2040 | struct ieee80211_frame wh; |
| 2041 | struct llc *llc; |
| 2042 | |
| 2043 | if (m->m_len < sizeof(wh) + sizeof(eh)) { |
| 2044 | m = m_pullup(m, sizeof(wh) + sizeof(eh)); |
| 2045 | if (m == NULL) |
| 2046 | return NULL; |
| 2047 | } |
| 2048 | memcpy(&wh, mtod(m, void *), sizeof(wh)); |
| 2049 | if (wh.i_fc[0] != (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA)) |
| 2050 | return m; |
| 2051 | memcpy(&eh, mtod(m, char *) + sizeof(wh), sizeof(eh)); |
| 2052 | m_adj(m, sizeof(eh) - sizeof(*llc)); |
| 2053 | if (ic->ic_opmode == IEEE80211_M_IBSS || |
| 2054 | ic->ic_opmode == IEEE80211_M_AHDEMO) |
| 2055 | IEEE80211_ADDR_COPY(wh.i_addr2, eh.ether_shost); |
| 2056 | memcpy(mtod(m, void *), &wh, sizeof(wh)); |
| 2057 | llc = (struct llc *)(mtod(m, char *) + sizeof(wh)); |
| 2058 | llc->llc_dsap = llc->llc_ssap = LLC_SNAP_LSAP; |
| 2059 | llc->llc_control = LLC_UI; |
| 2060 | llc->llc_snap.org_code[0] = 0; |
| 2061 | llc->llc_snap.org_code[1] = 0; |
| 2062 | llc->llc_snap.org_code[2] = 0; |
| 2063 | llc->llc_snap.ether_type = eh.ether_type; |
| 2064 | return m; |
| 2065 | } |
| 2066 | |