| 1 | /*- |
| 2 | * Copyright (c) 1997, 1998, 1999 |
| 3 | * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by Bill Paul. |
| 16 | * 4. Neither the name of the author nor the names of any co-contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD |
| 24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 30 | * THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | * $FreeBSD: head/sys/dev/wi/if_wi.c 196970 2009-09-08 13:19:05Z phk $ |
| 33 | */ |
| 34 | |
| 35 | /* |
| 36 | * Lucent WaveLAN/IEEE 802.11 PCMCIA driver. |
| 37 | * |
| 38 | * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu> |
| 39 | * Electrical Engineering Department |
| 40 | * Columbia University, New York City |
| 41 | */ |
| 42 | |
| 43 | /* |
| 44 | * The WaveLAN/IEEE adapter is the second generation of the WaveLAN |
| 45 | * from Lucent. Unlike the older cards, the new ones are programmed |
| 46 | * entirely via a firmware-driven controller called the Hermes. |
| 47 | * Unfortunately, Lucent will not release the Hermes programming manual |
| 48 | * without an NDA (if at all). What they do release is an API library |
| 49 | * called the HCF (Hardware Control Functions) which is supposed to |
| 50 | * do the device-specific operations of a device driver for you. The |
| 51 | * publically available version of the HCF library (the 'HCF Light') is |
| 52 | * a) extremely gross, b) lacks certain features, particularly support |
| 53 | * for 802.11 frames, and c) is contaminated by the GNU Public License. |
| 54 | * |
| 55 | * This driver does not use the HCF or HCF Light at all. Instead, it |
| 56 | * programs the Hermes controller directly, using information gleaned |
| 57 | * from the HCF Light code and corresponding documentation. |
| 58 | * |
| 59 | * This driver supports the ISA, PCMCIA and PCI versions of the Lucent |
| 60 | * WaveLan cards (based on the Hermes chipset), as well as the newer |
| 61 | * Prism 2 chipsets with firmware from Intersil and Symbol. |
| 62 | */ |
| 63 | |
| 64 | |
| 65 | #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */ |
| 66 | |
| 67 | #include <sys/param.h> |
| 68 | #include <sys/systm.h> |
| 69 | #include <sys/endian.h> |
| 70 | #include <sys/sockio.h> |
| 71 | #include <sys/mbuf.h> |
| 72 | #include <sys/priv.h> |
| 73 | #include <sys/proc.h> |
| 74 | #include <sys/kernel.h> |
| 75 | #include <sys/socket.h> |
| 76 | #include <sys/module.h> |
| 77 | #include <sys/bus.h> |
| 78 | #include <sys/random.h> |
| 79 | #include <sys/syslog.h> |
| 80 | #include <sys/sysctl.h> |
| 81 | |
| 82 | #include <machine/atomic.h> |
| 83 | #include <sys/rman.h> |
| 84 | |
| 85 | #include <net/if.h> |
| 86 | #include <net/if_arp.h> |
| 87 | #include <net/ethernet.h> |
| 88 | #include <net/if_dl.h> |
| 89 | #include <net/if_llc.h> |
| 90 | #include <net/if_media.h> |
| 91 | #include <net/if_types.h> |
| 92 | #include <net/ifq_var.h> |
| 93 | |
| 94 | #include <netproto/802_11/ieee80211_var.h> |
| 95 | #include <netproto/802_11/ieee80211_ioctl.h> |
| 96 | #include <netproto/802_11/ieee80211_radiotap.h> |
| 97 | |
| 98 | #include <netinet/in.h> |
| 99 | #include <netinet/in_systm.h> |
| 100 | #include <netinet/in_var.h> |
| 101 | #include <netinet/ip.h> |
| 102 | #include <netinet/if_ether.h> |
| 103 | |
| 104 | #include <net/bpf.h> |
| 105 | |
| 106 | #include <dev/netif/wi/if_wavelan_ieee.h> |
| 107 | #include <dev/netif/wi/if_wireg.h> |
| 108 | #include <dev/netif/wi/if_wivar.h> |
| 109 | |
| 110 | static struct ieee80211vap *wi_vap_create(struct ieee80211com *ic, |
| 111 | const char name[IFNAMSIZ], int unit, int opmode, int flags, |
| 112 | const uint8_t bssid[IEEE80211_ADDR_LEN], |
| 113 | const uint8_t mac[IEEE80211_ADDR_LEN]); |
| 114 | static void wi_vap_delete(struct ieee80211vap *vap); |
| 115 | static void wi_stop_locked(struct wi_softc *sc, int disable); |
| 116 | static void wi_start_locked(struct ifnet *); |
| 117 | static void wi_start(struct ifnet *); |
| 118 | static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, |
| 119 | struct mbuf *m0); |
| 120 | static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *, |
| 121 | const struct ieee80211_bpf_params *); |
| 122 | static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int); |
| 123 | static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state, |
| 124 | int); |
| 125 | static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, |
| 126 | int subtype, int rssi, int nf); |
| 127 | static int wi_reset(struct wi_softc *); |
| 128 | static void wi_watchdog_callout(void *); |
| 129 | static int wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); |
| 130 | static void wi_media_status(struct ifnet *, struct ifmediareq *); |
| 131 | |
| 132 | static void wi_rx_intr(struct wi_softc *); |
| 133 | static void wi_tx_intr(struct wi_softc *); |
| 134 | static void wi_tx_ex_intr(struct wi_softc *); |
| 135 | |
| 136 | static void wi_info_intr(struct wi_softc *); |
| 137 | |
| 138 | static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *); |
| 139 | static int wi_write_wep(struct wi_softc *, struct ieee80211vap *); |
| 140 | static int wi_write_multi(struct wi_softc *); |
| 141 | static void wi_update_mcast(struct ifnet *); |
| 142 | static void wi_update_promisc(struct ifnet *); |
| 143 | static int wi_alloc_fid(struct wi_softc *, int, int *); |
| 144 | static void wi_read_nicid(struct wi_softc *); |
| 145 | static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); |
| 146 | |
| 147 | static int wi_cmd(struct wi_softc *, int, int, int, int); |
| 148 | static int wi_seek_bap(struct wi_softc *, int, int); |
| 149 | static int wi_read_bap(struct wi_softc *, int, int, void *, int); |
| 150 | static int wi_write_bap(struct wi_softc *, int, int, void *, int); |
| 151 | static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); |
| 152 | static int wi_read_rid(struct wi_softc *, int, void *, int *); |
| 153 | static int wi_write_rid(struct wi_softc *, int, void *, int); |
| 154 | static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *); |
| 155 | |
| 156 | static void wi_scan_start(struct ieee80211com *); |
| 157 | static void wi_scan_end(struct ieee80211com *); |
| 158 | static void wi_set_channel(struct ieee80211com *); |
| 159 | |
| 160 | static __inline int |
| 161 | wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) |
| 162 | { |
| 163 | |
| 164 | val = htole16(val); |
| 165 | return wi_write_rid(sc, rid, &val, sizeof(val)); |
| 166 | } |
| 167 | |
| 168 | SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters"); |
| 169 | |
| 170 | static struct timeval lasttxerror; /* time of last tx error msg */ |
| 171 | static int curtxeps; /* current tx error msgs/sec */ |
| 172 | static int wi_txerate = 0; /* tx error rate: max msgs/sec */ |
| 173 | SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate, |
| 174 | 0, "max tx error msgs/sec; 0 to disable msgs"); |
| 175 | |
| 176 | #define WI_DEBUG |
| 177 | #ifdef WI_DEBUG |
| 178 | static int wi_debug = 0; |
| 179 | SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug, |
| 180 | 0, "control debugging printfs"); |
| 181 | #define DPRINTF(X) if (wi_debug) kprintf X |
| 182 | #else |
| 183 | #define DPRINTF(X) |
| 184 | #endif |
| 185 | |
| 186 | #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) |
| 187 | |
| 188 | struct wi_card_ident wi_card_ident[] = { |
| 189 | /* CARD_ID CARD_NAME FIRM_TYPE */ |
| 190 | { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, |
| 191 | { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, |
| 192 | { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, |
| 193 | { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, |
| 194 | { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, |
| 195 | { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, |
| 196 | { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, |
| 197 | { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, |
| 198 | { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, |
| 199 | { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, |
| 200 | { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, |
| 201 | { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, |
| 202 | { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, |
| 203 | { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, |
| 204 | { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, |
| 205 | { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, |
| 206 | { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, |
| 207 | { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, |
| 208 | { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, |
| 209 | { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, |
| 210 | { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, |
| 211 | { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, |
| 212 | { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, |
| 213 | { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, |
| 214 | { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, |
| 215 | { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, |
| 216 | { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, |
| 217 | { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, |
| 218 | { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, |
| 219 | { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, |
| 220 | { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, |
| 221 | { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, |
| 222 | { 0, NULL, 0 }, |
| 223 | }; |
| 224 | |
| 225 | static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; |
| 226 | |
| 227 | devclass_t wi_devclass; |
| 228 | |
| 229 | int |
| 230 | wi_attach(device_t dev) |
| 231 | { |
| 232 | struct wi_softc *sc = device_get_softc(dev); |
| 233 | struct ieee80211com *ic; |
| 234 | struct ifnet *ifp; |
| 235 | int i, nrates, buflen; |
| 236 | u_int16_t val; |
| 237 | u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; |
| 238 | struct ieee80211_rateset *rs; |
| 239 | struct sysctl_ctx_list *sctx; |
| 240 | struct sysctl_oid *soid; |
| 241 | static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { |
| 242 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 243 | }; |
| 244 | int error; |
| 245 | uint8_t macaddr[IEEE80211_ADDR_LEN]; |
| 246 | |
| 247 | ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); |
| 248 | if (ifp == NULL) { |
| 249 | device_printf(dev, "can not if_alloc\n"); |
| 250 | wi_free(dev); |
| 251 | return ENOSPC; |
| 252 | } |
| 253 | ic = ifp->if_l2com; |
| 254 | |
| 255 | sc->sc_firmware_type = WI_NOTYPE; |
| 256 | sc->wi_cmd_count = 500; |
| 257 | /* Reset the NIC. */ |
| 258 | if (wi_reset(sc) != 0) { |
| 259 | wi_free(dev); |
| 260 | return ENXIO; /* XXX */ |
| 261 | } |
| 262 | |
| 263 | /* Read NIC identification */ |
| 264 | wi_read_nicid(sc); |
| 265 | switch (sc->sc_firmware_type) { |
| 266 | case WI_LUCENT: |
| 267 | if (sc->sc_sta_firmware_ver < 60006) |
| 268 | goto reject; |
| 269 | break; |
| 270 | case WI_INTERSIL: |
| 271 | if (sc->sc_sta_firmware_ver < 800) |
| 272 | goto reject; |
| 273 | break; |
| 274 | default: |
| 275 | reject: |
| 276 | device_printf(dev, "Sorry, this card is not supported " |
| 277 | "(type %d, firmware ver %d)\n", |
| 278 | sc->sc_firmware_type, sc->sc_sta_firmware_ver); |
| 279 | wi_free(dev); |
| 280 | return EOPNOTSUPP; |
| 281 | } |
| 282 | |
| 283 | /* Export info about the device via sysctl */ |
| 284 | sctx = &sc->sc_sysctl_ctx; |
| 285 | sysctl_ctx_init(sctx); |
| 286 | soid = SYSCTL_ADD_NODE(sctx, SYSCTL_STATIC_CHILDREN(_hw), |
| 287 | OID_AUTO, |
| 288 | device_get_nameunit(sc->sc_dev), |
| 289 | CTLFLAG_RD, 0, ""); |
| 290 | if (soid == NULL) { |
| 291 | device_printf(sc->sc_dev, "can't add sysctl node\n"); |
| 292 | return ENXIO; |
| 293 | } |
| 294 | |
| 295 | SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, |
| 296 | "firmware_type", CTLFLAG_RD, |
| 297 | wi_firmware_names[sc->sc_firmware_type], 0, |
| 298 | "Firmware type string"); |
| 299 | SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", |
| 300 | CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, |
| 301 | "Station Firmware version"); |
| 302 | if (sc->sc_firmware_type == WI_INTERSIL) |
| 303 | SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, |
| 304 | "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, |
| 305 | "Primary Firmware version"); |
| 306 | SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", |
| 307 | CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); |
| 308 | SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", |
| 309 | CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); |
| 310 | |
| 311 | callout_init(&sc->sc_watchdog); |
| 312 | |
| 313 | /* |
| 314 | * Read the station address. |
| 315 | * And do it twice. I've seen PRISM-based cards that return |
| 316 | * an error when trying to read it the first time, which causes |
| 317 | * the probe to fail. |
| 318 | */ |
| 319 | buflen = IEEE80211_ADDR_LEN; |
| 320 | error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); |
| 321 | if (error != 0) { |
| 322 | buflen = IEEE80211_ADDR_LEN; |
| 323 | error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); |
| 324 | } |
| 325 | if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { |
| 326 | if (error != 0) |
| 327 | device_printf(dev, "mac read failed %d\n", error); |
| 328 | else { |
| 329 | device_printf(dev, "mac read failed (all zeros)\n"); |
| 330 | error = ENXIO; |
| 331 | } |
| 332 | wi_free(dev); |
| 333 | return (error); |
| 334 | } |
| 335 | |
| 336 | ifp->if_softc = sc; |
| 337 | if_initname(ifp, device_get_name(dev), device_get_unit(dev)); |
| 338 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; |
| 339 | ifp->if_ioctl = wi_ioctl; |
| 340 | ifp->if_start = wi_start; |
| 341 | ifp->if_init = wi_init; |
| 342 | ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); |
| 343 | ifq_set_ready(&ifp->if_snd); |
| 344 | |
| 345 | ic->ic_ifp = ifp; |
| 346 | ic->ic_phytype = IEEE80211_T_DS; |
| 347 | ic->ic_opmode = IEEE80211_M_STA; |
| 348 | ic->ic_caps = IEEE80211_C_STA |
| 349 | | IEEE80211_C_PMGT |
| 350 | | IEEE80211_C_MONITOR |
| 351 | ; |
| 352 | |
| 353 | /* |
| 354 | * Query the card for available channels and setup the |
| 355 | * channel table. We assume these are all 11b channels. |
| 356 | */ |
| 357 | buflen = sizeof(val); |
| 358 | if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) |
| 359 | val = htole16(0x1fff); /* assume 1-11 */ |
| 360 | KASSERT(val != 0, ("wi_attach: no available channels listed!")); |
| 361 | |
| 362 | val <<= 1; /* shift for base 1 indices */ |
| 363 | for (i = 1; i < 16; i++) { |
| 364 | struct ieee80211_channel *c; |
| 365 | |
| 366 | if (!isset((u_int8_t*)&val, i)) |
| 367 | continue; |
| 368 | c = &ic->ic_channels[ic->ic_nchans++]; |
| 369 | c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); |
| 370 | c->ic_flags = IEEE80211_CHAN_B; |
| 371 | c->ic_ieee = i; |
| 372 | /* XXX txpowers? */ |
| 373 | } |
| 374 | |
| 375 | /* |
| 376 | * Set flags based on firmware version. |
| 377 | */ |
| 378 | switch (sc->sc_firmware_type) { |
| 379 | case WI_LUCENT: |
| 380 | sc->sc_ntxbuf = 1; |
| 381 | ic->ic_caps |= IEEE80211_C_IBSS; |
| 382 | |
| 383 | sc->sc_ibss_port = WI_PORTTYPE_BSS; |
| 384 | sc->sc_monitor_port = WI_PORTTYPE_ADHOC; |
| 385 | sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; |
| 386 | sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; |
| 387 | sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; |
| 388 | break; |
| 389 | case WI_INTERSIL: |
| 390 | sc->sc_ntxbuf = WI_NTXBUF; |
| 391 | sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR |
| 392 | | WI_FLAGS_HAS_ROAMING; |
| 393 | /* |
| 394 | * Old firmware are slow, so give peace a chance. |
| 395 | */ |
| 396 | if (sc->sc_sta_firmware_ver < 10000) |
| 397 | sc->wi_cmd_count = 5000; |
| 398 | if (sc->sc_sta_firmware_ver > 10101) |
| 399 | sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; |
| 400 | ic->ic_caps |= IEEE80211_C_IBSS; |
| 401 | /* |
| 402 | * version 0.8.3 and newer are the only ones that are known |
| 403 | * to currently work. Earlier versions can be made to work, |
| 404 | * at least according to the Linux driver but we require |
| 405 | * monitor mode so this is irrelevant. |
| 406 | */ |
| 407 | ic->ic_caps |= IEEE80211_C_HOSTAP; |
| 408 | if (sc->sc_sta_firmware_ver >= 10603) |
| 409 | sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; |
| 410 | if (sc->sc_sta_firmware_ver >= 10700) { |
| 411 | /* |
| 412 | * 1.7.0+ have the necessary support for sta mode WPA. |
| 413 | */ |
| 414 | sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; |
| 415 | ic->ic_caps |= IEEE80211_C_WPA; |
| 416 | } |
| 417 | |
| 418 | sc->sc_ibss_port = WI_PORTTYPE_IBSS; |
| 419 | sc->sc_monitor_port = WI_PORTTYPE_APSILENT; |
| 420 | sc->sc_min_rssi = WI_PRISM_MIN_RSSI; |
| 421 | sc->sc_max_rssi = WI_PRISM_MAX_RSSI; |
| 422 | sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; |
| 423 | break; |
| 424 | } |
| 425 | |
| 426 | /* |
| 427 | * Find out if we support WEP on this card. |
| 428 | */ |
| 429 | buflen = sizeof(val); |
| 430 | if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && |
| 431 | val != htole16(0)) |
| 432 | ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; |
| 433 | |
| 434 | /* Find supported rates. */ |
| 435 | buflen = sizeof(ratebuf); |
| 436 | rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; |
| 437 | if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { |
| 438 | nrates = le16toh(*(u_int16_t *)ratebuf); |
| 439 | if (nrates > IEEE80211_RATE_MAXSIZE) |
| 440 | nrates = IEEE80211_RATE_MAXSIZE; |
| 441 | rs->rs_nrates = 0; |
| 442 | for (i = 0; i < nrates; i++) |
| 443 | if (ratebuf[2+i]) |
| 444 | rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; |
| 445 | } else { |
| 446 | /* XXX fallback on error? */ |
| 447 | } |
| 448 | |
| 449 | buflen = sizeof(val); |
| 450 | if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && |
| 451 | wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { |
| 452 | sc->sc_dbm_offset = le16toh(val); |
| 453 | } |
| 454 | |
| 455 | sc->sc_portnum = WI_DEFAULT_PORT; |
| 456 | |
| 457 | ieee80211_ifattach(ic, macaddr); |
| 458 | ic->ic_raw_xmit = wi_raw_xmit; |
| 459 | ic->ic_scan_start = wi_scan_start; |
| 460 | ic->ic_scan_end = wi_scan_end; |
| 461 | ic->ic_set_channel = wi_set_channel; |
| 462 | |
| 463 | ic->ic_vap_create = wi_vap_create; |
| 464 | ic->ic_vap_delete = wi_vap_delete; |
| 465 | ic->ic_update_mcast = wi_update_mcast; |
| 466 | ic->ic_update_promisc = wi_update_promisc; |
| 467 | |
| 468 | ieee80211_radiotap_attach(ic, |
| 469 | &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), |
| 470 | WI_TX_RADIOTAP_PRESENT, |
| 471 | &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), |
| 472 | WI_RX_RADIOTAP_PRESENT); |
| 473 | |
| 474 | if (bootverbose) |
| 475 | ieee80211_announce(ic); |
| 476 | |
| 477 | error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, |
| 478 | wi_intr, sc, &sc->wi_intrhand, NULL); |
| 479 | if (error) { |
| 480 | device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); |
| 481 | ieee80211_ifdetach(ic); |
| 482 | if_free(sc->sc_ifp); |
| 483 | wi_free(dev); |
| 484 | return error; |
| 485 | } |
| 486 | |
| 487 | return (0); |
| 488 | } |
| 489 | |
| 490 | int |
| 491 | wi_detach(device_t dev) |
| 492 | { |
| 493 | struct wi_softc *sc = device_get_softc(dev); |
| 494 | struct ifnet *ifp = sc->sc_ifp; |
| 495 | struct ieee80211com *ic = ifp->if_l2com; |
| 496 | |
| 497 | /* check if device was removed */ |
| 498 | sc->wi_gone |= !bus_child_present(dev); |
| 499 | |
| 500 | wi_stop_locked(sc, 0); |
| 501 | ieee80211_ifdetach(ic); |
| 502 | |
| 503 | bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); |
| 504 | if_free(sc->sc_ifp); |
| 505 | wi_free(dev); |
| 506 | return (0); |
| 507 | } |
| 508 | |
| 509 | static struct ieee80211vap * |
| 510 | wi_vap_create(struct ieee80211com *ic, |
| 511 | const char name[IFNAMSIZ], int unit, int opmode, int flags, |
| 512 | const uint8_t bssid[IEEE80211_ADDR_LEN], |
| 513 | const uint8_t mac[IEEE80211_ADDR_LEN]) |
| 514 | { |
| 515 | struct wi_softc *sc = ic->ic_ifp->if_softc; |
| 516 | struct wi_vap *wvp; |
| 517 | struct ieee80211vap *vap; |
| 518 | |
| 519 | if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ |
| 520 | return NULL; |
| 521 | wvp = (struct wi_vap *) kmalloc(sizeof(struct wi_vap), |
| 522 | M_80211_VAP, M_NOWAIT | M_ZERO); |
| 523 | if (wvp == NULL) |
| 524 | return NULL; |
| 525 | |
| 526 | vap = &wvp->wv_vap; |
| 527 | ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); |
| 528 | |
| 529 | vap->iv_max_aid = WI_MAX_AID; |
| 530 | |
| 531 | switch (opmode) { |
| 532 | case IEEE80211_M_STA: |
| 533 | sc->sc_porttype = WI_PORTTYPE_BSS; |
| 534 | wvp->wv_newstate = vap->iv_newstate; |
| 535 | vap->iv_newstate = wi_newstate_sta; |
| 536 | /* need to filter mgt frames to avoid confusing state machine */ |
| 537 | wvp->wv_recv_mgmt = vap->iv_recv_mgmt; |
| 538 | vap->iv_recv_mgmt = wi_recv_mgmt; |
| 539 | break; |
| 540 | case IEEE80211_M_IBSS: |
| 541 | sc->sc_porttype = sc->sc_ibss_port; |
| 542 | wvp->wv_newstate = vap->iv_newstate; |
| 543 | vap->iv_newstate = wi_newstate_sta; |
| 544 | break; |
| 545 | case IEEE80211_M_AHDEMO: |
| 546 | sc->sc_porttype = WI_PORTTYPE_ADHOC; |
| 547 | break; |
| 548 | case IEEE80211_M_HOSTAP: |
| 549 | sc->sc_porttype = WI_PORTTYPE_HOSTAP; |
| 550 | wvp->wv_newstate = vap->iv_newstate; |
| 551 | vap->iv_newstate = wi_newstate_hostap; |
| 552 | break; |
| 553 | case IEEE80211_M_MONITOR: |
| 554 | sc->sc_porttype = sc->sc_monitor_port; |
| 555 | break; |
| 556 | default: |
| 557 | break; |
| 558 | } |
| 559 | |
| 560 | /* complete setup */ |
| 561 | ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); |
| 562 | ic->ic_opmode = opmode; |
| 563 | return vap; |
| 564 | } |
| 565 | |
| 566 | static void |
| 567 | wi_vap_delete(struct ieee80211vap *vap) |
| 568 | { |
| 569 | struct wi_vap *wvp = WI_VAP(vap); |
| 570 | |
| 571 | ieee80211_vap_detach(vap); |
| 572 | kfree(wvp, M_80211_VAP); |
| 573 | } |
| 574 | |
| 575 | int |
| 576 | wi_shutdown(device_t dev) |
| 577 | { |
| 578 | struct wi_softc *sc = device_get_softc(dev); |
| 579 | |
| 580 | wi_stop(sc, 1); |
| 581 | return (0); |
| 582 | } |
| 583 | |
| 584 | void |
| 585 | wi_intr(void *arg) |
| 586 | { |
| 587 | struct wi_softc *sc = arg; |
| 588 | struct ifnet *ifp = sc->sc_ifp; |
| 589 | u_int16_t status; |
| 590 | |
| 591 | if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { |
| 592 | CSR_WRITE_2(sc, WI_INT_EN, 0); |
| 593 | CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); |
| 594 | return; |
| 595 | } |
| 596 | |
| 597 | /* Disable interrupts. */ |
| 598 | CSR_WRITE_2(sc, WI_INT_EN, 0); |
| 599 | |
| 600 | status = CSR_READ_2(sc, WI_EVENT_STAT); |
| 601 | if (status & WI_EV_RX) |
| 602 | wi_rx_intr(sc); |
| 603 | if (status & WI_EV_ALLOC) |
| 604 | wi_tx_intr(sc); |
| 605 | if (status & WI_EV_TX_EXC) |
| 606 | wi_tx_ex_intr(sc); |
| 607 | if (status & WI_EV_INFO) |
| 608 | wi_info_intr(sc); |
| 609 | if ((ifp->if_flags & IFF_OACTIVE) == 0 && |
| 610 | !ifq_is_empty(&ifp->if_snd)) |
| 611 | wi_start_locked(ifp); |
| 612 | |
| 613 | /* Re-enable interrupts. */ |
| 614 | CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); |
| 615 | |
| 616 | return; |
| 617 | } |
| 618 | |
| 619 | static void |
| 620 | wi_enable(struct wi_softc *sc) |
| 621 | { |
| 622 | /* Enable interrupts */ |
| 623 | CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); |
| 624 | |
| 625 | /* enable port */ |
| 626 | wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); |
| 627 | sc->sc_enabled = 1; |
| 628 | } |
| 629 | |
| 630 | static int |
| 631 | wi_setup_locked(struct wi_softc *sc, int porttype, int mode, |
| 632 | uint8_t mac[IEEE80211_ADDR_LEN]) |
| 633 | { |
| 634 | int i; |
| 635 | |
| 636 | wi_reset(sc); |
| 637 | |
| 638 | wi_write_val(sc, WI_RID_PORTTYPE, porttype); |
| 639 | wi_write_val(sc, WI_RID_CREATE_IBSS, mode); |
| 640 | wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); |
| 641 | /* XXX IEEE80211_BPF_NOACK wants 0 */ |
| 642 | wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); |
| 643 | if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) |
| 644 | wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ |
| 645 | |
| 646 | wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); |
| 647 | |
| 648 | /* Allocate fids for the card */ |
| 649 | sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); |
| 650 | for (i = 0; i < sc->sc_ntxbuf; i++) { |
| 651 | int error = wi_alloc_fid(sc, sc->sc_buflen, |
| 652 | &sc->sc_txd[i].d_fid); |
| 653 | if (error) { |
| 654 | device_printf(sc->sc_dev, |
| 655 | "tx buffer allocation failed (error %u)\n", |
| 656 | error); |
| 657 | return error; |
| 658 | } |
| 659 | sc->sc_txd[i].d_len = 0; |
| 660 | } |
| 661 | sc->sc_txcur = sc->sc_txnext = 0; |
| 662 | |
| 663 | return 0; |
| 664 | } |
| 665 | |
| 666 | static void |
| 667 | wi_init_locked(struct wi_softc *sc) |
| 668 | { |
| 669 | struct ifnet *ifp = sc->sc_ifp; |
| 670 | int wasenabled; |
| 671 | |
| 672 | wasenabled = sc->sc_enabled; |
| 673 | if (wasenabled) |
| 674 | wi_stop_locked(sc, 1); |
| 675 | |
| 676 | if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { |
| 677 | if_printf(ifp, "interface not running\n"); |
| 678 | wi_stop_locked(sc, 1); |
| 679 | return; |
| 680 | } |
| 681 | |
| 682 | ifp->if_flags |= IFF_RUNNING; |
| 683 | ifp->if_flags &= ~IFF_OACTIVE; |
| 684 | |
| 685 | callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); |
| 686 | |
| 687 | wi_enable(sc); /* Enable desired port */ |
| 688 | } |
| 689 | |
| 690 | void |
| 691 | wi_init(void *arg) |
| 692 | { |
| 693 | struct wi_softc *sc = arg; |
| 694 | struct ifnet *ifp = sc->sc_ifp; |
| 695 | struct ieee80211com *ic = ifp->if_l2com; |
| 696 | |
| 697 | wi_init_locked(sc); |
| 698 | |
| 699 | if (ifp->if_flags & IFF_RUNNING) |
| 700 | ieee80211_start_all(ic); /* start all vap's */ |
| 701 | } |
| 702 | |
| 703 | static void |
| 704 | wi_stop_locked(struct wi_softc *sc, int disable) |
| 705 | { |
| 706 | struct ifnet *ifp = sc->sc_ifp; |
| 707 | |
| 708 | if (sc->sc_enabled && !sc->wi_gone) { |
| 709 | CSR_WRITE_2(sc, WI_INT_EN, 0); |
| 710 | wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); |
| 711 | if (disable) |
| 712 | sc->sc_enabled = 0; |
| 713 | } else if (sc->wi_gone && disable) /* gone --> not enabled */ |
| 714 | sc->sc_enabled = 0; |
| 715 | |
| 716 | callout_stop(&sc->sc_watchdog); |
| 717 | sc->sc_tx_timer = 0; |
| 718 | sc->sc_false_syns = 0; |
| 719 | |
| 720 | ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING); |
| 721 | } |
| 722 | |
| 723 | void |
| 724 | wi_stop(struct wi_softc *sc, int disable) |
| 725 | { |
| 726 | wi_stop_locked(sc, disable); |
| 727 | } |
| 728 | |
| 729 | static void |
| 730 | wi_set_channel(struct ieee80211com *ic) |
| 731 | { |
| 732 | struct ifnet *ifp = ic->ic_ifp; |
| 733 | struct wi_softc *sc = ifp->if_softc; |
| 734 | |
| 735 | DPRINTF(("%s: channel %d, %sscanning\n", __func__, |
| 736 | ieee80211_chan2ieee(ic, ic->ic_curchan), |
| 737 | ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); |
| 738 | |
| 739 | wi_write_val(sc, WI_RID_OWN_CHNL, |
| 740 | ieee80211_chan2ieee(ic, ic->ic_curchan)); |
| 741 | } |
| 742 | |
| 743 | static void |
| 744 | wi_scan_start(struct ieee80211com *ic) |
| 745 | { |
| 746 | struct ifnet *ifp = ic->ic_ifp; |
| 747 | struct wi_softc *sc = ifp->if_softc; |
| 748 | struct ieee80211_scan_state *ss = ic->ic_scan; |
| 749 | |
| 750 | DPRINTF(("%s\n", __func__)); |
| 751 | |
| 752 | /* |
| 753 | * Switch device to monitor mode. |
| 754 | */ |
| 755 | wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); |
| 756 | if (sc->sc_firmware_type == WI_INTERSIL) { |
| 757 | wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); |
| 758 | wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); |
| 759 | } |
| 760 | /* force full dwell time to compensate for firmware overhead */ |
| 761 | ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); |
| 762 | |
| 763 | } |
| 764 | |
| 765 | static void |
| 766 | wi_scan_end(struct ieee80211com *ic) |
| 767 | { |
| 768 | struct ifnet *ifp = ic->ic_ifp; |
| 769 | struct wi_softc *sc = ifp->if_softc; |
| 770 | |
| 771 | DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); |
| 772 | |
| 773 | wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); |
| 774 | if (sc->sc_firmware_type == WI_INTERSIL) { |
| 775 | wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); |
| 776 | wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); |
| 777 | } |
| 778 | } |
| 779 | |
| 780 | static void |
| 781 | wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, |
| 782 | int subtype, int rssi, int nf) |
| 783 | { |
| 784 | struct ieee80211vap *vap = ni->ni_vap; |
| 785 | |
| 786 | switch (subtype) { |
| 787 | case IEEE80211_FC0_SUBTYPE_AUTH: |
| 788 | case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: |
| 789 | case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: |
| 790 | /* NB: filter frames that trigger state changes */ |
| 791 | return; |
| 792 | } |
| 793 | WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); |
| 794 | } |
| 795 | |
| 796 | static int |
| 797 | wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) |
| 798 | { |
| 799 | struct ieee80211com *ic = vap->iv_ic; |
| 800 | struct ifnet *ifp = ic->ic_ifp; |
| 801 | struct ieee80211_node *bss; |
| 802 | struct wi_softc *sc = ifp->if_softc; |
| 803 | |
| 804 | DPRINTF(("%s: %s -> %s\n", __func__, |
| 805 | ieee80211_state_name[vap->iv_state], |
| 806 | ieee80211_state_name[nstate])); |
| 807 | |
| 808 | if (nstate == IEEE80211_S_AUTH) { |
| 809 | wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); |
| 810 | |
| 811 | if (vap->iv_flags & IEEE80211_F_PMGTON) { |
| 812 | wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); |
| 813 | wi_write_val(sc, WI_RID_PM_ENABLED, 1); |
| 814 | } |
| 815 | wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); |
| 816 | if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) |
| 817 | wi_write_val(sc, WI_RID_FRAG_THRESH, |
| 818 | vap->iv_fragthreshold); |
| 819 | wi_write_txrate(sc, vap); |
| 820 | |
| 821 | bss = vap->iv_bss; |
| 822 | wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); |
| 823 | wi_write_val(sc, WI_RID_OWN_CHNL, |
| 824 | ieee80211_chan2ieee(ic, bss->ni_chan)); |
| 825 | |
| 826 | /* Configure WEP. */ |
| 827 | if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) |
| 828 | wi_write_wep(sc, vap); |
| 829 | else |
| 830 | sc->sc_encryption = 0; |
| 831 | |
| 832 | if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && |
| 833 | (vap->iv_flags & IEEE80211_F_WPA)) { |
| 834 | wi_write_val(sc, WI_RID_WPA_HANDLING, 1); |
| 835 | if (vap->iv_appie_wpa != NULL) |
| 836 | wi_write_appie(sc, WI_RID_WPA_DATA, |
| 837 | vap->iv_appie_wpa); |
| 838 | } |
| 839 | |
| 840 | wi_enable(sc); /* enable port */ |
| 841 | |
| 842 | /* Lucent firmware does not support the JOIN RID. */ |
| 843 | if (sc->sc_firmware_type == WI_INTERSIL) { |
| 844 | struct wi_joinreq join; |
| 845 | |
| 846 | memset(&join, 0, sizeof(join)); |
| 847 | IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); |
| 848 | join.wi_chan = htole16( |
| 849 | ieee80211_chan2ieee(ic, bss->ni_chan)); |
| 850 | wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); |
| 851 | } |
| 852 | |
| 853 | /* |
| 854 | * NB: don't go through 802.11 layer, it'll send auth frame; |
| 855 | * instead we drive the state machine from the link status |
| 856 | * notification we get on association. |
| 857 | */ |
| 858 | vap->iv_state = nstate; |
| 859 | return (0); |
| 860 | } |
| 861 | return WI_VAP(vap)->wv_newstate(vap, nstate, arg); |
| 862 | } |
| 863 | |
| 864 | static int |
| 865 | wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) |
| 866 | { |
| 867 | struct ieee80211com *ic = vap->iv_ic; |
| 868 | struct ifnet *ifp = ic->ic_ifp; |
| 869 | struct ieee80211_node *bss; |
| 870 | struct wi_softc *sc = ifp->if_softc; |
| 871 | int error; |
| 872 | |
| 873 | DPRINTF(("%s: %s -> %s\n", __func__, |
| 874 | ieee80211_state_name[vap->iv_state], |
| 875 | ieee80211_state_name[nstate])); |
| 876 | |
| 877 | error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); |
| 878 | if (error == 0 && nstate == IEEE80211_S_RUN) { |
| 879 | wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); |
| 880 | |
| 881 | bss = vap->iv_bss; |
| 882 | wi_write_ssid(sc, WI_RID_OWN_SSID, |
| 883 | bss->ni_essid, bss->ni_esslen); |
| 884 | wi_write_val(sc, WI_RID_OWN_CHNL, |
| 885 | ieee80211_chan2ieee(ic, bss->ni_chan)); |
| 886 | wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); |
| 887 | wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); |
| 888 | wi_write_txrate(sc, vap); |
| 889 | |
| 890 | wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); |
| 891 | wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); |
| 892 | |
| 893 | wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); |
| 894 | if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) |
| 895 | wi_write_val(sc, WI_RID_FRAG_THRESH, |
| 896 | vap->iv_fragthreshold); |
| 897 | |
| 898 | if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && |
| 899 | (vap->iv_flags & IEEE80211_F_HIDESSID)) { |
| 900 | /* |
| 901 | * bit 0 means hide SSID in beacons, |
| 902 | * bit 1 means don't respond to bcast probe req |
| 903 | */ |
| 904 | wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); |
| 905 | } |
| 906 | |
| 907 | if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && |
| 908 | (vap->iv_flags & IEEE80211_F_WPA) && |
| 909 | vap->iv_appie_wpa != NULL) |
| 910 | wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); |
| 911 | |
| 912 | wi_write_val(sc, WI_RID_PROMISC, 0); |
| 913 | |
| 914 | /* Configure WEP. */ |
| 915 | if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) |
| 916 | wi_write_wep(sc, vap); |
| 917 | else |
| 918 | sc->sc_encryption = 0; |
| 919 | |
| 920 | wi_enable(sc); /* enable port */ |
| 921 | } |
| 922 | return error; |
| 923 | } |
| 924 | |
| 925 | static void |
| 926 | wi_start_locked(struct ifnet *ifp) |
| 927 | { |
| 928 | struct wi_softc *sc = ifp->if_softc; |
| 929 | struct ieee80211_node *ni; |
| 930 | struct ieee80211_frame *wh; |
| 931 | struct mbuf *m0; |
| 932 | struct ieee80211_key *k; |
| 933 | struct wi_frame frmhdr; |
| 934 | const struct llc *llc; |
| 935 | int cur; |
| 936 | |
| 937 | if (sc->wi_gone) |
| 938 | return; |
| 939 | |
| 940 | memset(&frmhdr, 0, sizeof(frmhdr)); |
| 941 | cur = sc->sc_txnext; |
| 942 | for (;;) { |
| 943 | IF_DEQUEUE(&ifp->if_snd, m0); |
| 944 | if (m0 == NULL) |
| 945 | break; |
| 946 | if (sc->sc_txd[cur].d_len != 0) { |
| 947 | IF_PREPEND(&ifp->if_snd, m0); |
| 948 | ifp->if_flags |= IFF_OACTIVE; |
| 949 | break; |
| 950 | } |
| 951 | ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; |
| 952 | |
| 953 | /* reconstruct 802.3 header */ |
| 954 | wh = mtod(m0, struct ieee80211_frame *); |
| 955 | switch (wh->i_fc[1]) { |
| 956 | case IEEE80211_FC1_DIR_TODS: |
| 957 | IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, |
| 958 | wh->i_addr2); |
| 959 | IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, |
| 960 | wh->i_addr3); |
| 961 | break; |
| 962 | case IEEE80211_FC1_DIR_NODS: |
| 963 | IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, |
| 964 | wh->i_addr2); |
| 965 | IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, |
| 966 | wh->i_addr1); |
| 967 | break; |
| 968 | case IEEE80211_FC1_DIR_FROMDS: |
| 969 | IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, |
| 970 | wh->i_addr3); |
| 971 | IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, |
| 972 | wh->i_addr1); |
| 973 | break; |
| 974 | } |
| 975 | llc = (const struct llc *)( |
| 976 | mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); |
| 977 | frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; |
| 978 | frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); |
| 979 | if (wh->i_fc[1] & IEEE80211_FC1_WEP) { |
| 980 | k = ieee80211_crypto_encap(ni, m0); |
| 981 | if (k == NULL) { |
| 982 | ieee80211_free_node(ni); |
| 983 | m_freem(m0); |
| 984 | continue; |
| 985 | } |
| 986 | frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); |
| 987 | } |
| 988 | |
| 989 | if (ieee80211_radiotap_active_vap(ni->ni_vap)) { |
| 990 | sc->sc_tx_th.wt_rate = ni->ni_txrate; |
| 991 | ieee80211_radiotap_tx(ni->ni_vap, m0); |
| 992 | } |
| 993 | |
| 994 | m_copydata(m0, 0, sizeof(struct ieee80211_frame), |
| 995 | (caddr_t)&frmhdr.wi_whdr); |
| 996 | m_adj(m0, sizeof(struct ieee80211_frame)); |
| 997 | frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); |
| 998 | ieee80211_free_node(ni); |
| 999 | if (wi_start_tx(ifp, &frmhdr, m0)) |
| 1000 | continue; |
| 1001 | |
| 1002 | sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; |
| 1003 | ifp->if_opackets++; |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | static void |
| 1008 | wi_start(struct ifnet *ifp) |
| 1009 | { |
| 1010 | wi_start_locked(ifp); |
| 1011 | } |
| 1012 | |
| 1013 | static int |
| 1014 | wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) |
| 1015 | { |
| 1016 | struct wi_softc *sc = ifp->if_softc; |
| 1017 | int cur = sc->sc_txnext; |
| 1018 | int fid, off, error; |
| 1019 | |
| 1020 | fid = sc->sc_txd[cur].d_fid; |
| 1021 | off = sizeof(*frmhdr); |
| 1022 | error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 |
| 1023 | || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; |
| 1024 | m_freem(m0); |
| 1025 | if (error) { |
| 1026 | ifp->if_oerrors++; |
| 1027 | return -1; |
| 1028 | } |
| 1029 | sc->sc_txd[cur].d_len = off; |
| 1030 | if (sc->sc_txcur == cur) { |
| 1031 | if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { |
| 1032 | if_printf(ifp, "xmit failed\n"); |
| 1033 | sc->sc_txd[cur].d_len = 0; |
| 1034 | return -1; |
| 1035 | } |
| 1036 | sc->sc_tx_timer = 5; |
| 1037 | } |
| 1038 | return 0; |
| 1039 | } |
| 1040 | |
| 1041 | static int |
| 1042 | wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, |
| 1043 | const struct ieee80211_bpf_params *params) |
| 1044 | { |
| 1045 | struct ieee80211com *ic = ni->ni_ic; |
| 1046 | struct ifnet *ifp = ic->ic_ifp; |
| 1047 | struct ieee80211vap *vap = ni->ni_vap; |
| 1048 | struct wi_softc *sc = ifp->if_softc; |
| 1049 | struct ieee80211_key *k; |
| 1050 | struct ieee80211_frame *wh; |
| 1051 | struct wi_frame frmhdr; |
| 1052 | int cur; |
| 1053 | int rc = 0; |
| 1054 | |
| 1055 | if (sc->wi_gone) { |
| 1056 | rc = ENETDOWN; |
| 1057 | goto out; |
| 1058 | } |
| 1059 | memset(&frmhdr, 0, sizeof(frmhdr)); |
| 1060 | cur = sc->sc_txnext; |
| 1061 | if (sc->sc_txd[cur].d_len != 0) { |
| 1062 | ifp->if_flags |= IFF_OACTIVE; |
| 1063 | rc = ENOBUFS; |
| 1064 | goto out; |
| 1065 | } |
| 1066 | m0->m_pkthdr.rcvif = NULL; |
| 1067 | |
| 1068 | m_copydata(m0, 4, ETHER_ADDR_LEN * 2, |
| 1069 | (caddr_t)&frmhdr.wi_ehdr); |
| 1070 | frmhdr.wi_ehdr.ether_type = 0; |
| 1071 | wh = mtod(m0, struct ieee80211_frame *); |
| 1072 | |
| 1073 | frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); |
| 1074 | if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) |
| 1075 | frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); |
| 1076 | if ((wh->i_fc[1] & IEEE80211_FC1_WEP) && |
| 1077 | (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { |
| 1078 | k = ieee80211_crypto_encap(ni, m0); |
| 1079 | if (k == NULL) { |
| 1080 | rc = ENOMEM; |
| 1081 | goto out; |
| 1082 | } |
| 1083 | frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); |
| 1084 | } |
| 1085 | if (ieee80211_radiotap_active_vap(vap)) { |
| 1086 | sc->sc_tx_th.wt_rate = ni->ni_txrate; |
| 1087 | ieee80211_radiotap_tx(vap, m0); |
| 1088 | } |
| 1089 | m_copydata(m0, 0, sizeof(struct ieee80211_frame), |
| 1090 | (caddr_t)&frmhdr.wi_whdr); |
| 1091 | m_adj(m0, sizeof(struct ieee80211_frame)); |
| 1092 | frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); |
| 1093 | if (wi_start_tx(ifp, &frmhdr, m0) < 0) { |
| 1094 | m0 = NULL; |
| 1095 | rc = EIO; |
| 1096 | goto out; |
| 1097 | } |
| 1098 | m0 = NULL; |
| 1099 | |
| 1100 | sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; |
| 1101 | out: |
| 1102 | |
| 1103 | if (m0 != NULL) |
| 1104 | m_freem(m0); |
| 1105 | ieee80211_free_node(ni); |
| 1106 | return rc; |
| 1107 | } |
| 1108 | |
| 1109 | static int |
| 1110 | wi_reset(struct wi_softc *sc) |
| 1111 | { |
| 1112 | #define WI_INIT_TRIES 3 |
| 1113 | int i, error = 0; |
| 1114 | |
| 1115 | for (i = 0; i < WI_INIT_TRIES; i++) { |
| 1116 | error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); |
| 1117 | if (error == 0) |
| 1118 | break; |
| 1119 | DELAY(WI_DELAY * 1000); |
| 1120 | } |
| 1121 | sc->sc_reset = 1; |
| 1122 | if (i == WI_INIT_TRIES) { |
| 1123 | if_printf(sc->sc_ifp, "reset failed\n"); |
| 1124 | return error; |
| 1125 | } |
| 1126 | |
| 1127 | CSR_WRITE_2(sc, WI_INT_EN, 0); |
| 1128 | CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); |
| 1129 | |
| 1130 | /* Calibrate timer. */ |
| 1131 | wi_write_val(sc, WI_RID_TICK_TIME, 8); |
| 1132 | |
| 1133 | return 0; |
| 1134 | #undef WI_INIT_TRIES |
| 1135 | } |
| 1136 | |
| 1137 | static void |
| 1138 | wi_watchdog_callout(void *arg) |
| 1139 | { |
| 1140 | struct wi_softc *sc = arg; |
| 1141 | struct ifnet *ifp = sc->sc_ifp; |
| 1142 | |
| 1143 | if (!sc->sc_enabled) |
| 1144 | return; |
| 1145 | |
| 1146 | if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { |
| 1147 | if_printf(ifp, "device timeout\n"); |
| 1148 | ifp->if_oerrors++; |
| 1149 | wi_init_locked(ifp->if_softc); |
| 1150 | return; |
| 1151 | } |
| 1152 | callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); |
| 1153 | } |
| 1154 | |
| 1155 | static int |
| 1156 | wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) |
| 1157 | { |
| 1158 | struct wi_softc *sc = ifp->if_softc; |
| 1159 | struct ieee80211com *ic = ifp->if_l2com; |
| 1160 | struct ifreq *ifr = (struct ifreq *) data; |
| 1161 | int error = 0, startall = 0; |
| 1162 | |
| 1163 | switch (cmd) { |
| 1164 | case SIOCSIFFLAGS: |
| 1165 | /* |
| 1166 | * Can't do promisc and hostap at the same time. If all that's |
| 1167 | * changing is the promisc flag, try to short-circuit a call to |
| 1168 | * wi_init() by just setting PROMISC in the hardware. |
| 1169 | */ |
| 1170 | if (ifp->if_flags & IFF_UP) { |
| 1171 | if (ic->ic_opmode != IEEE80211_M_HOSTAP && |
| 1172 | ifp->if_flags & IFF_RUNNING) { |
| 1173 | if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { |
| 1174 | wi_write_val(sc, WI_RID_PROMISC, |
| 1175 | (ifp->if_flags & IFF_PROMISC) != 0); |
| 1176 | } else { |
| 1177 | wi_init_locked(sc); |
| 1178 | startall = 1; |
| 1179 | } |
| 1180 | } else { |
| 1181 | wi_init_locked(sc); |
| 1182 | startall = 1; |
| 1183 | } |
| 1184 | } else { |
| 1185 | if (ifp->if_flags & IFF_RUNNING) |
| 1186 | wi_stop_locked(sc, 1); |
| 1187 | sc->wi_gone = 0; |
| 1188 | } |
| 1189 | sc->sc_if_flags = ifp->if_flags; |
| 1190 | if (startall) |
| 1191 | ieee80211_start_all(ic); |
| 1192 | break; |
| 1193 | case SIOCGIFMEDIA: |
| 1194 | error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); |
| 1195 | break; |
| 1196 | case SIOCGIFADDR: |
| 1197 | error = ether_ioctl(ifp, cmd, data); |
| 1198 | break; |
| 1199 | default: |
| 1200 | error = EINVAL; |
| 1201 | break; |
| 1202 | } |
| 1203 | return error; |
| 1204 | } |
| 1205 | |
| 1206 | static void |
| 1207 | wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) |
| 1208 | { |
| 1209 | struct ieee80211vap *vap = ifp->if_softc; |
| 1210 | struct ieee80211com *ic = vap->iv_ic; |
| 1211 | struct wi_softc *sc = ic->ic_ifp->if_softc; |
| 1212 | u_int16_t val; |
| 1213 | int rate, len; |
| 1214 | |
| 1215 | len = sizeof(val); |
| 1216 | if (sc->sc_enabled && |
| 1217 | wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && |
| 1218 | len == sizeof(val)) { |
| 1219 | /* convert to 802.11 rate */ |
| 1220 | val = le16toh(val); |
| 1221 | rate = val * 2; |
| 1222 | if (sc->sc_firmware_type == WI_LUCENT) { |
| 1223 | if (rate == 10) |
| 1224 | rate = 11; /* 5.5Mbps */ |
| 1225 | } else { |
| 1226 | if (rate == 4*2) |
| 1227 | rate = 11; /* 5.5Mbps */ |
| 1228 | else if (rate == 8*2) |
| 1229 | rate = 22; /* 11Mbps */ |
| 1230 | } |
| 1231 | vap->iv_bss->ni_txrate = rate; |
| 1232 | } |
| 1233 | ieee80211_media_status(ifp, imr); |
| 1234 | } |
| 1235 | |
| 1236 | static void |
| 1237 | wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) |
| 1238 | { |
| 1239 | struct ifnet *ifp = sc->sc_ifp; |
| 1240 | struct ieee80211com *ic = ifp->if_l2com; |
| 1241 | struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); |
| 1242 | struct ieee80211_node *ni = vap->iv_bss; |
| 1243 | |
| 1244 | if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) |
| 1245 | return; |
| 1246 | |
| 1247 | DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":")); |
| 1248 | DPRINTF(("%6D ?\n", new_bssid, ":")); |
| 1249 | |
| 1250 | /* In promiscuous mode, the BSSID field is not a reliable |
| 1251 | * indicator of the firmware's BSSID. Damp spurious |
| 1252 | * change-of-BSSID indications. |
| 1253 | */ |
| 1254 | if ((ifp->if_flags & IFF_PROMISC) != 0 && |
| 1255 | !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, |
| 1256 | WI_MAX_FALSE_SYNS)) |
| 1257 | return; |
| 1258 | |
| 1259 | sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); |
| 1260 | #if 0 |
| 1261 | /* |
| 1262 | * XXX hack; we should create a new node with the new bssid |
| 1263 | * and replace the existing ic_bss with it but since we don't |
| 1264 | * process management frames to collect state we cheat by |
| 1265 | * reusing the existing node as we know wi_newstate will be |
| 1266 | * called and it will overwrite the node state. |
| 1267 | */ |
| 1268 | ieee80211_sta_join(ic, ieee80211_ref_node(ni)); |
| 1269 | #endif |
| 1270 | } |
| 1271 | |
| 1272 | static __noinline void |
| 1273 | wi_rx_intr(struct wi_softc *sc) |
| 1274 | { |
| 1275 | struct ifnet *ifp = sc->sc_ifp; |
| 1276 | struct ieee80211com *ic = ifp->if_l2com; |
| 1277 | struct wi_frame frmhdr; |
| 1278 | struct mbuf *m; |
| 1279 | struct ieee80211_frame *wh; |
| 1280 | struct ieee80211_node *ni; |
| 1281 | int fid, len, off; |
| 1282 | u_int8_t dir; |
| 1283 | u_int16_t status; |
| 1284 | int8_t rssi, nf; |
| 1285 | |
| 1286 | fid = CSR_READ_2(sc, WI_RX_FID); |
| 1287 | |
| 1288 | /* First read in the frame header */ |
| 1289 | if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { |
| 1290 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); |
| 1291 | ifp->if_ierrors++; |
| 1292 | DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); |
| 1293 | return; |
| 1294 | } |
| 1295 | |
| 1296 | /* |
| 1297 | * Drop undecryptable or packets with receive errors here |
| 1298 | */ |
| 1299 | status = le16toh(frmhdr.wi_status); |
| 1300 | if (status & WI_STAT_ERRSTAT) { |
| 1301 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); |
| 1302 | ifp->if_ierrors++; |
| 1303 | DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); |
| 1304 | return; |
| 1305 | } |
| 1306 | |
| 1307 | len = le16toh(frmhdr.wi_dat_len); |
| 1308 | off = ALIGN(sizeof(struct ieee80211_frame)); |
| 1309 | |
| 1310 | /* |
| 1311 | * Sometimes the PRISM2.x returns bogusly large frames. Except |
| 1312 | * in monitor mode, just throw them away. |
| 1313 | */ |
| 1314 | if (off + len > MCLBYTES) { |
| 1315 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 1316 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); |
| 1317 | ifp->if_ierrors++; |
| 1318 | DPRINTF(("wi_rx_intr: oversized packet\n")); |
| 1319 | return; |
| 1320 | } else |
| 1321 | len = 0; |
| 1322 | } |
| 1323 | |
| 1324 | if (off + len > MHLEN) |
| 1325 | m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); |
| 1326 | else |
| 1327 | m = m_gethdr(MB_DONTWAIT, MT_DATA); |
| 1328 | if (m == NULL) { |
| 1329 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); |
| 1330 | ifp->if_ierrors++; |
| 1331 | DPRINTF(("wi_rx_intr: MGET failed\n")); |
| 1332 | return; |
| 1333 | } |
| 1334 | m->m_data += off - sizeof(struct ieee80211_frame); |
| 1335 | memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); |
| 1336 | wi_read_bap(sc, fid, sizeof(frmhdr), |
| 1337 | m->m_data + sizeof(struct ieee80211_frame), len); |
| 1338 | m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; |
| 1339 | m->m_pkthdr.rcvif = ifp; |
| 1340 | |
| 1341 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); |
| 1342 | |
| 1343 | rssi = frmhdr.wi_rx_signal; |
| 1344 | nf = frmhdr.wi_rx_silence; |
| 1345 | if (ieee80211_radiotap_active(ic)) { |
| 1346 | struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; |
| 1347 | uint32_t rstamp; |
| 1348 | |
| 1349 | rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | |
| 1350 | le16toh(frmhdr.wi_rx_tstamp1); |
| 1351 | tap->wr_tsf = htole64((uint64_t)rstamp); |
| 1352 | /* XXX replace divide by table */ |
| 1353 | tap->wr_rate = frmhdr.wi_rx_rate / 5; |
| 1354 | tap->wr_flags = 0; |
| 1355 | if (frmhdr.wi_status & WI_STAT_PCF) |
| 1356 | tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; |
| 1357 | if (m->m_flags & M_WEP) |
| 1358 | tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; |
| 1359 | tap->wr_antsignal = rssi; |
| 1360 | tap->wr_antnoise = nf; |
| 1361 | } |
| 1362 | |
| 1363 | /* synchronize driver's BSSID with firmware's BSSID */ |
| 1364 | wh = mtod(m, struct ieee80211_frame *); |
| 1365 | dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; |
| 1366 | if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) |
| 1367 | wi_sync_bssid(sc, wh->i_addr3); |
| 1368 | |
| 1369 | ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); |
| 1370 | if (ni != NULL) { |
| 1371 | (void) ieee80211_input(ni, m, rssi, nf); |
| 1372 | ieee80211_free_node(ni); |
| 1373 | } else |
| 1374 | (void) ieee80211_input_all(ic, m, rssi, nf); |
| 1375 | |
| 1376 | } |
| 1377 | |
| 1378 | static __noinline void |
| 1379 | wi_tx_ex_intr(struct wi_softc *sc) |
| 1380 | { |
| 1381 | struct ifnet *ifp = sc->sc_ifp; |
| 1382 | struct wi_frame frmhdr; |
| 1383 | int fid; |
| 1384 | |
| 1385 | fid = CSR_READ_2(sc, WI_TX_CMP_FID); |
| 1386 | /* Read in the frame header */ |
| 1387 | if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { |
| 1388 | u_int16_t status = le16toh(frmhdr.wi_status); |
| 1389 | /* |
| 1390 | * Spontaneous station disconnects appear as xmit |
| 1391 | * errors. Don't announce them and/or count them |
| 1392 | * as an output error. |
| 1393 | */ |
| 1394 | if ((status & WI_TXSTAT_DISCONNECT) == 0) { |
| 1395 | if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { |
| 1396 | if_printf(ifp, "tx failed"); |
| 1397 | if (status & WI_TXSTAT_RET_ERR) |
| 1398 | kprintf(", retry limit exceeded"); |
| 1399 | if (status & WI_TXSTAT_AGED_ERR) |
| 1400 | kprintf(", max transmit lifetime exceeded"); |
| 1401 | if (status & WI_TXSTAT_DISCONNECT) |
| 1402 | kprintf(", port disconnected"); |
| 1403 | if (status & WI_TXSTAT_FORM_ERR) |
| 1404 | kprintf(", invalid format (data len %u src %6D)", |
| 1405 | le16toh(frmhdr.wi_dat_len), |
| 1406 | frmhdr.wi_ehdr.ether_shost, ":"); |
| 1407 | if (status & ~0xf) |
| 1408 | kprintf(", status=0x%x", status); |
| 1409 | kprintf("\n"); |
| 1410 | } |
| 1411 | ifp->if_oerrors++; |
| 1412 | } else { |
| 1413 | DPRINTF(("port disconnected\n")); |
| 1414 | ifp->if_collisions++; /* XXX */ |
| 1415 | } |
| 1416 | } else |
| 1417 | DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); |
| 1418 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); |
| 1419 | } |
| 1420 | |
| 1421 | static __noinline void |
| 1422 | wi_tx_intr(struct wi_softc *sc) |
| 1423 | { |
| 1424 | struct ifnet *ifp = sc->sc_ifp; |
| 1425 | int fid, cur; |
| 1426 | |
| 1427 | if (sc->wi_gone) |
| 1428 | return; |
| 1429 | |
| 1430 | fid = CSR_READ_2(sc, WI_ALLOC_FID); |
| 1431 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); |
| 1432 | |
| 1433 | cur = sc->sc_txcur; |
| 1434 | if (sc->sc_txd[cur].d_fid != fid) { |
| 1435 | if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", |
| 1436 | fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); |
| 1437 | return; |
| 1438 | } |
| 1439 | sc->sc_tx_timer = 0; |
| 1440 | sc->sc_txd[cur].d_len = 0; |
| 1441 | sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; |
| 1442 | if (sc->sc_txd[cur].d_len == 0) |
| 1443 | ifp->if_flags &= ~IFF_OACTIVE; |
| 1444 | else { |
| 1445 | if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, |
| 1446 | 0, 0)) { |
| 1447 | if_printf(ifp, "xmit failed\n"); |
| 1448 | sc->sc_txd[cur].d_len = 0; |
| 1449 | } else { |
| 1450 | sc->sc_tx_timer = 5; |
| 1451 | } |
| 1452 | } |
| 1453 | } |
| 1454 | |
| 1455 | static __noinline void |
| 1456 | wi_info_intr(struct wi_softc *sc) |
| 1457 | { |
| 1458 | struct ifnet *ifp = sc->sc_ifp; |
| 1459 | struct ieee80211com *ic = ifp->if_l2com; |
| 1460 | struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); |
| 1461 | int i, fid, len, off; |
| 1462 | u_int16_t ltbuf[2]; |
| 1463 | u_int16_t stat; |
| 1464 | u_int32_t *ptr; |
| 1465 | |
| 1466 | fid = CSR_READ_2(sc, WI_INFO_FID); |
| 1467 | wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); |
| 1468 | |
| 1469 | switch (le16toh(ltbuf[1])) { |
| 1470 | case WI_INFO_LINK_STAT: |
| 1471 | wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); |
| 1472 | DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); |
| 1473 | switch (le16toh(stat)) { |
| 1474 | case WI_INFO_LINK_STAT_CONNECTED: |
| 1475 | if (vap->iv_state == IEEE80211_S_RUN && |
| 1476 | vap->iv_opmode != IEEE80211_M_IBSS) |
| 1477 | break; |
| 1478 | /* fall thru... */ |
| 1479 | case WI_INFO_LINK_STAT_AP_CHG: |
| 1480 | vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ |
| 1481 | ieee80211_new_state(vap, IEEE80211_S_RUN, 0); |
| 1482 | break; |
| 1483 | case WI_INFO_LINK_STAT_AP_INR: |
| 1484 | break; |
| 1485 | case WI_INFO_LINK_STAT_DISCONNECTED: |
| 1486 | /* we dropped off the net; e.g. due to deauth/disassoc */ |
| 1487 | vap->iv_bss->ni_associd = 0; |
| 1488 | vap->iv_stats.is_rx_deauth++; |
| 1489 | ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); |
| 1490 | break; |
| 1491 | case WI_INFO_LINK_STAT_AP_OOR: |
| 1492 | /* XXX does this need to be per-vap? */ |
| 1493 | ieee80211_beacon_miss(ic); |
| 1494 | break; |
| 1495 | case WI_INFO_LINK_STAT_ASSOC_FAILED: |
| 1496 | if (vap->iv_opmode == IEEE80211_M_STA) |
| 1497 | ieee80211_new_state(vap, IEEE80211_S_SCAN, |
| 1498 | IEEE80211_SCAN_FAIL_TIMEOUT); |
| 1499 | break; |
| 1500 | } |
| 1501 | break; |
| 1502 | case WI_INFO_COUNTERS: |
| 1503 | /* some card versions have a larger stats structure */ |
| 1504 | len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); |
| 1505 | ptr = (u_int32_t *)&sc->sc_stats; |
| 1506 | off = sizeof(ltbuf); |
| 1507 | for (i = 0; i < len; i++, off += 2, ptr++) { |
| 1508 | wi_read_bap(sc, fid, off, &stat, sizeof(stat)); |
| 1509 | #ifdef WI_HERMES_STATS_WAR |
| 1510 | if (stat & 0xf000) |
| 1511 | stat = ~stat; |
| 1512 | #endif |
| 1513 | *ptr += stat; |
| 1514 | } |
| 1515 | ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + |
| 1516 | sc->sc_stats.wi_tx_multi_retries + |
| 1517 | sc->sc_stats.wi_tx_retry_limit; |
| 1518 | break; |
| 1519 | default: |
| 1520 | DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, |
| 1521 | le16toh(ltbuf[1]), le16toh(ltbuf[0]))); |
| 1522 | break; |
| 1523 | } |
| 1524 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); |
| 1525 | } |
| 1526 | |
| 1527 | static int |
| 1528 | wi_write_multi(struct wi_softc *sc) |
| 1529 | { |
| 1530 | struct ifnet *ifp = sc->sc_ifp; |
| 1531 | int n; |
| 1532 | struct ifmultiaddr *ifma; |
| 1533 | struct wi_mcast mlist; |
| 1534 | |
| 1535 | if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { |
| 1536 | allmulti: |
| 1537 | memset(&mlist, 0, sizeof(mlist)); |
| 1538 | return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, |
| 1539 | sizeof(mlist)); |
| 1540 | } |
| 1541 | |
| 1542 | n = 0; |
| 1543 | #ifdef __FreeBSD__ |
| 1544 | if_maddr_rlock(ifp); |
| 1545 | #endif |
| 1546 | TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { |
| 1547 | if (ifma->ifma_addr->sa_family != AF_LINK) |
| 1548 | continue; |
| 1549 | if (n >= 16) |
| 1550 | goto allmulti; |
| 1551 | IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], |
| 1552 | (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); |
| 1553 | n++; |
| 1554 | } |
| 1555 | #ifdef __FreeBSD__ |
| 1556 | if_maddr_runlock(ifp); |
| 1557 | #endif |
| 1558 | return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, |
| 1559 | IEEE80211_ADDR_LEN * n); |
| 1560 | } |
| 1561 | |
| 1562 | static void |
| 1563 | wi_update_mcast(struct ifnet *ifp) |
| 1564 | { |
| 1565 | wi_write_multi(ifp->if_softc); |
| 1566 | } |
| 1567 | |
| 1568 | static void |
| 1569 | wi_update_promisc(struct ifnet *ifp) |
| 1570 | { |
| 1571 | struct wi_softc *sc = ifp->if_softc; |
| 1572 | struct ieee80211com *ic = ifp->if_l2com; |
| 1573 | |
| 1574 | /* XXX handle WEP special case handling? */ |
| 1575 | wi_write_val(sc, WI_RID_PROMISC, |
| 1576 | (ic->ic_opmode == IEEE80211_M_MONITOR || |
| 1577 | (ifp->if_flags & IFF_PROMISC))); |
| 1578 | } |
| 1579 | |
| 1580 | static void |
| 1581 | wi_read_nicid(struct wi_softc *sc) |
| 1582 | { |
| 1583 | struct wi_card_ident *id; |
| 1584 | char *p; |
| 1585 | int len; |
| 1586 | u_int16_t ver[4]; |
| 1587 | |
| 1588 | /* getting chip identity */ |
| 1589 | memset(ver, 0, sizeof(ver)); |
| 1590 | len = sizeof(ver); |
| 1591 | wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); |
| 1592 | |
| 1593 | sc->sc_firmware_type = WI_NOTYPE; |
| 1594 | sc->sc_nic_id = le16toh(ver[0]); |
| 1595 | for (id = wi_card_ident; id->card_name != NULL; id++) { |
| 1596 | if (sc->sc_nic_id == id->card_id) { |
| 1597 | sc->sc_nic_name = id->card_name; |
| 1598 | sc->sc_firmware_type = id->firm_type; |
| 1599 | break; |
| 1600 | } |
| 1601 | } |
| 1602 | if (sc->sc_firmware_type == WI_NOTYPE) { |
| 1603 | if (sc->sc_nic_id & 0x8000) { |
| 1604 | sc->sc_firmware_type = WI_INTERSIL; |
| 1605 | sc->sc_nic_name = "Unknown Prism chip"; |
| 1606 | } else { |
| 1607 | sc->sc_firmware_type = WI_LUCENT; |
| 1608 | sc->sc_nic_name = "Unknown Lucent chip"; |
| 1609 | } |
| 1610 | } |
| 1611 | if (bootverbose) |
| 1612 | device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); |
| 1613 | |
| 1614 | /* get primary firmware version (Only Prism chips) */ |
| 1615 | if (sc->sc_firmware_type != WI_LUCENT) { |
| 1616 | memset(ver, 0, sizeof(ver)); |
| 1617 | len = sizeof(ver); |
| 1618 | wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); |
| 1619 | sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + |
| 1620 | le16toh(ver[3]) * 100 + le16toh(ver[1]); |
| 1621 | } |
| 1622 | |
| 1623 | /* get station firmware version */ |
| 1624 | memset(ver, 0, sizeof(ver)); |
| 1625 | len = sizeof(ver); |
| 1626 | wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); |
| 1627 | sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + |
| 1628 | le16toh(ver[3]) * 100 + le16toh(ver[1]); |
| 1629 | if (sc->sc_firmware_type == WI_INTERSIL && |
| 1630 | (sc->sc_sta_firmware_ver == 10102 || |
| 1631 | sc->sc_sta_firmware_ver == 20102)) { |
| 1632 | char ident[12]; |
| 1633 | memset(ident, 0, sizeof(ident)); |
| 1634 | len = sizeof(ident); |
| 1635 | /* value should be the format like "V2.00-11" */ |
| 1636 | if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && |
| 1637 | *(p = (char *)ident) >= 'A' && |
| 1638 | p[2] == '.' && p[5] == '-' && p[8] == '\0') { |
| 1639 | sc->sc_firmware_type = WI_SYMBOL; |
| 1640 | sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + |
| 1641 | (p[3] - '0') * 1000 + (p[4] - '0') * 100 + |
| 1642 | (p[6] - '0') * 10 + (p[7] - '0'); |
| 1643 | } |
| 1644 | } |
| 1645 | if (bootverbose) { |
| 1646 | device_printf(sc->sc_dev, "%s Firmware: ", |
| 1647 | wi_firmware_names[sc->sc_firmware_type]); |
| 1648 | if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ |
| 1649 | kprintf("Primary (%u.%u.%u), ", |
| 1650 | sc->sc_pri_firmware_ver / 10000, |
| 1651 | (sc->sc_pri_firmware_ver % 10000) / 100, |
| 1652 | sc->sc_pri_firmware_ver % 100); |
| 1653 | kprintf("Station (%u.%u.%u)\n", |
| 1654 | sc->sc_sta_firmware_ver / 10000, |
| 1655 | (sc->sc_sta_firmware_ver % 10000) / 100, |
| 1656 | sc->sc_sta_firmware_ver % 100); |
| 1657 | } |
| 1658 | } |
| 1659 | |
| 1660 | static int |
| 1661 | wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) |
| 1662 | { |
| 1663 | struct wi_ssid ssid; |
| 1664 | |
| 1665 | if (buflen > IEEE80211_NWID_LEN) |
| 1666 | return ENOBUFS; |
| 1667 | memset(&ssid, 0, sizeof(ssid)); |
| 1668 | ssid.wi_len = htole16(buflen); |
| 1669 | memcpy(ssid.wi_ssid, buf, buflen); |
| 1670 | return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); |
| 1671 | } |
| 1672 | |
| 1673 | static int |
| 1674 | wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) |
| 1675 | { |
| 1676 | static const uint16_t lucent_rates[12] = { |
| 1677 | [ 0] = 3, /* auto */ |
| 1678 | [ 1] = 1, /* 1Mb/s */ |
| 1679 | [ 2] = 2, /* 2Mb/s */ |
| 1680 | [ 5] = 4, /* 5.5Mb/s */ |
| 1681 | [11] = 5 /* 11Mb/s */ |
| 1682 | }; |
| 1683 | static const uint16_t intersil_rates[12] = { |
| 1684 | [ 0] = 0xf, /* auto */ |
| 1685 | [ 1] = 0, /* 1Mb/s */ |
| 1686 | [ 2] = 1, /* 2Mb/s */ |
| 1687 | [ 5] = 2, /* 5.5Mb/s */ |
| 1688 | [11] = 3, /* 11Mb/s */ |
| 1689 | }; |
| 1690 | const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? |
| 1691 | lucent_rates : intersil_rates; |
| 1692 | struct ieee80211com *ic = vap->iv_ic; |
| 1693 | const struct ieee80211_txparam *tp; |
| 1694 | |
| 1695 | tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; |
| 1696 | return wi_write_val(sc, WI_RID_TX_RATE, |
| 1697 | (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? |
| 1698 | rates[0] : rates[tp->ucastrate / 2])); |
| 1699 | } |
| 1700 | |
| 1701 | static int |
| 1702 | wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) |
| 1703 | { |
| 1704 | int error = 0; |
| 1705 | int i, keylen; |
| 1706 | u_int16_t val; |
| 1707 | struct wi_key wkey[IEEE80211_WEP_NKID]; |
| 1708 | |
| 1709 | switch (sc->sc_firmware_type) { |
| 1710 | case WI_LUCENT: |
| 1711 | val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; |
| 1712 | error = wi_write_val(sc, WI_RID_ENCRYPTION, val); |
| 1713 | if (error) |
| 1714 | break; |
| 1715 | if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) |
| 1716 | break; |
| 1717 | error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); |
| 1718 | if (error) |
| 1719 | break; |
| 1720 | memset(wkey, 0, sizeof(wkey)); |
| 1721 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 1722 | keylen = vap->iv_nw_keys[i].wk_keylen; |
| 1723 | wkey[i].wi_keylen = htole16(keylen); |
| 1724 | memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, |
| 1725 | keylen); |
| 1726 | } |
| 1727 | error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, |
| 1728 | wkey, sizeof(wkey)); |
| 1729 | sc->sc_encryption = 0; |
| 1730 | break; |
| 1731 | |
| 1732 | case WI_INTERSIL: |
| 1733 | val = HOST_ENCRYPT | HOST_DECRYPT; |
| 1734 | if (vap->iv_flags & IEEE80211_F_PRIVACY) { |
| 1735 | /* |
| 1736 | * ONLY HWB3163 EVAL-CARD Firmware version |
| 1737 | * less than 0.8 variant2 |
| 1738 | * |
| 1739 | * If promiscuous mode disable, Prism2 chip |
| 1740 | * does not work with WEP . |
| 1741 | * It is under investigation for details. |
| 1742 | * (ichiro@netbsd.org) |
| 1743 | */ |
| 1744 | if (sc->sc_sta_firmware_ver < 802 ) { |
| 1745 | /* firm ver < 0.8 variant 2 */ |
| 1746 | wi_write_val(sc, WI_RID_PROMISC, 1); |
| 1747 | } |
| 1748 | wi_write_val(sc, WI_RID_CNFAUTHMODE, |
| 1749 | vap->iv_bss->ni_authmode); |
| 1750 | val |= PRIVACY_INVOKED; |
| 1751 | } else { |
| 1752 | wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); |
| 1753 | } |
| 1754 | error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); |
| 1755 | if (error) |
| 1756 | break; |
| 1757 | sc->sc_encryption = val; |
| 1758 | if ((val & PRIVACY_INVOKED) == 0) |
| 1759 | break; |
| 1760 | error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); |
| 1761 | break; |
| 1762 | } |
| 1763 | return error; |
| 1764 | } |
| 1765 | |
| 1766 | static int |
| 1767 | wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) |
| 1768 | { |
| 1769 | int i, s = 0; |
| 1770 | |
| 1771 | if (sc->wi_gone) |
| 1772 | return (ENODEV); |
| 1773 | |
| 1774 | /* wait for the busy bit to clear */ |
| 1775 | for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ |
| 1776 | if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) |
| 1777 | break; |
| 1778 | DELAY(1*1000); /* 1ms */ |
| 1779 | } |
| 1780 | if (i == 0) { |
| 1781 | device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", |
| 1782 | __func__, cmd); |
| 1783 | sc->wi_gone = 1; |
| 1784 | return(ETIMEDOUT); |
| 1785 | } |
| 1786 | |
| 1787 | CSR_WRITE_2(sc, WI_PARAM0, val0); |
| 1788 | CSR_WRITE_2(sc, WI_PARAM1, val1); |
| 1789 | CSR_WRITE_2(sc, WI_PARAM2, val2); |
| 1790 | CSR_WRITE_2(sc, WI_COMMAND, cmd); |
| 1791 | |
| 1792 | if (cmd == WI_CMD_INI) { |
| 1793 | /* XXX: should sleep here. */ |
| 1794 | DELAY(100*1000); /* 100ms delay for init */ |
| 1795 | } |
| 1796 | for (i = 0; i < WI_TIMEOUT; i++) { |
| 1797 | /* |
| 1798 | * Wait for 'command complete' bit to be |
| 1799 | * set in the event status register. |
| 1800 | */ |
| 1801 | s = CSR_READ_2(sc, WI_EVENT_STAT); |
| 1802 | if (s & WI_EV_CMD) { |
| 1803 | /* Ack the event and read result code. */ |
| 1804 | s = CSR_READ_2(sc, WI_STATUS); |
| 1805 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); |
| 1806 | if (s & WI_STAT_CMD_RESULT) { |
| 1807 | return(EIO); |
| 1808 | } |
| 1809 | break; |
| 1810 | } |
| 1811 | DELAY(WI_DELAY); |
| 1812 | } |
| 1813 | |
| 1814 | if (i == WI_TIMEOUT) { |
| 1815 | device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " |
| 1816 | "event status 0x%04x\n", __func__, cmd, s); |
| 1817 | if (s == 0xffff) |
| 1818 | sc->wi_gone = 1; |
| 1819 | return(ETIMEDOUT); |
| 1820 | } |
| 1821 | return (0); |
| 1822 | } |
| 1823 | |
| 1824 | static int |
| 1825 | wi_seek_bap(struct wi_softc *sc, int id, int off) |
| 1826 | { |
| 1827 | int i, status; |
| 1828 | |
| 1829 | CSR_WRITE_2(sc, WI_SEL0, id); |
| 1830 | CSR_WRITE_2(sc, WI_OFF0, off); |
| 1831 | |
| 1832 | for (i = 0; ; i++) { |
| 1833 | status = CSR_READ_2(sc, WI_OFF0); |
| 1834 | if ((status & WI_OFF_BUSY) == 0) |
| 1835 | break; |
| 1836 | if (i == WI_TIMEOUT) { |
| 1837 | device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", |
| 1838 | __func__, id, off); |
| 1839 | sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ |
| 1840 | if (status == 0xffff) |
| 1841 | sc->wi_gone = 1; |
| 1842 | return ETIMEDOUT; |
| 1843 | } |
| 1844 | DELAY(1); |
| 1845 | } |
| 1846 | if (status & WI_OFF_ERR) { |
| 1847 | device_printf(sc->sc_dev, "%s: error, id %x off %x\n", |
| 1848 | __func__, id, off); |
| 1849 | sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ |
| 1850 | return EIO; |
| 1851 | } |
| 1852 | sc->sc_bap_id = id; |
| 1853 | sc->sc_bap_off = off; |
| 1854 | return 0; |
| 1855 | } |
| 1856 | |
| 1857 | static int |
| 1858 | wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) |
| 1859 | { |
| 1860 | u_int16_t *ptr; |
| 1861 | int i, error, cnt; |
| 1862 | |
| 1863 | if (buflen == 0) |
| 1864 | return 0; |
| 1865 | if (id != sc->sc_bap_id || off != sc->sc_bap_off) { |
| 1866 | if ((error = wi_seek_bap(sc, id, off)) != 0) |
| 1867 | return error; |
| 1868 | } |
| 1869 | cnt = (buflen + 1) / 2; |
| 1870 | ptr = (u_int16_t *)buf; |
| 1871 | for (i = 0; i < cnt; i++) |
| 1872 | *ptr++ = CSR_READ_2(sc, WI_DATA0); |
| 1873 | sc->sc_bap_off += cnt * 2; |
| 1874 | return 0; |
| 1875 | } |
| 1876 | |
| 1877 | static int |
| 1878 | wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) |
| 1879 | { |
| 1880 | u_int16_t *ptr; |
| 1881 | int i, error, cnt; |
| 1882 | |
| 1883 | if (buflen == 0) |
| 1884 | return 0; |
| 1885 | |
| 1886 | if (id != sc->sc_bap_id || off != sc->sc_bap_off) { |
| 1887 | if ((error = wi_seek_bap(sc, id, off)) != 0) |
| 1888 | return error; |
| 1889 | } |
| 1890 | cnt = (buflen + 1) / 2; |
| 1891 | ptr = (u_int16_t *)buf; |
| 1892 | for (i = 0; i < cnt; i++) |
| 1893 | CSR_WRITE_2(sc, WI_DATA0, ptr[i]); |
| 1894 | sc->sc_bap_off += cnt * 2; |
| 1895 | |
| 1896 | return 0; |
| 1897 | } |
| 1898 | |
| 1899 | static int |
| 1900 | wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) |
| 1901 | { |
| 1902 | int error, len; |
| 1903 | struct mbuf *m; |
| 1904 | |
| 1905 | for (m = m0; m != NULL && totlen > 0; m = m->m_next) { |
| 1906 | if (m->m_len == 0) |
| 1907 | continue; |
| 1908 | |
| 1909 | len = min(m->m_len, totlen); |
| 1910 | |
| 1911 | if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { |
| 1912 | m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); |
| 1913 | return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, |
| 1914 | totlen); |
| 1915 | } |
| 1916 | |
| 1917 | if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) |
| 1918 | return error; |
| 1919 | |
| 1920 | off += m->m_len; |
| 1921 | totlen -= len; |
| 1922 | } |
| 1923 | return 0; |
| 1924 | } |
| 1925 | |
| 1926 | static int |
| 1927 | wi_alloc_fid(struct wi_softc *sc, int len, int *idp) |
| 1928 | { |
| 1929 | int i; |
| 1930 | |
| 1931 | if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { |
| 1932 | device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", |
| 1933 | __func__, len); |
| 1934 | return ENOMEM; |
| 1935 | } |
| 1936 | |
| 1937 | for (i = 0; i < WI_TIMEOUT; i++) { |
| 1938 | if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) |
| 1939 | break; |
| 1940 | DELAY(1); |
| 1941 | } |
| 1942 | if (i == WI_TIMEOUT) { |
| 1943 | device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); |
| 1944 | return ETIMEDOUT; |
| 1945 | } |
| 1946 | *idp = CSR_READ_2(sc, WI_ALLOC_FID); |
| 1947 | CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); |
| 1948 | return 0; |
| 1949 | } |
| 1950 | |
| 1951 | static int |
| 1952 | wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) |
| 1953 | { |
| 1954 | int error, len; |
| 1955 | u_int16_t ltbuf[2]; |
| 1956 | |
| 1957 | /* Tell the NIC to enter record read mode. */ |
| 1958 | error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); |
| 1959 | if (error) |
| 1960 | return error; |
| 1961 | |
| 1962 | error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); |
| 1963 | if (error) |
| 1964 | return error; |
| 1965 | |
| 1966 | if (le16toh(ltbuf[1]) != rid) { |
| 1967 | device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", |
| 1968 | rid, le16toh(ltbuf[1])); |
| 1969 | return EIO; |
| 1970 | } |
| 1971 | len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ |
| 1972 | if (*buflenp < len) { |
| 1973 | device_printf(sc->sc_dev, "record buffer is too small, " |
| 1974 | "rid=%x, size=%d, len=%d\n", |
| 1975 | rid, *buflenp, len); |
| 1976 | return ENOSPC; |
| 1977 | } |
| 1978 | *buflenp = len; |
| 1979 | return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); |
| 1980 | } |
| 1981 | |
| 1982 | static int |
| 1983 | wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) |
| 1984 | { |
| 1985 | int error; |
| 1986 | u_int16_t ltbuf[2]; |
| 1987 | |
| 1988 | ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ |
| 1989 | ltbuf[1] = htole16(rid); |
| 1990 | |
| 1991 | error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); |
| 1992 | if (error) { |
| 1993 | device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", |
| 1994 | __func__, rid); |
| 1995 | return error; |
| 1996 | } |
| 1997 | error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); |
| 1998 | if (error) { |
| 1999 | device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", |
| 2000 | __func__, rid); |
| 2001 | return error; |
| 2002 | } |
| 2003 | |
| 2004 | return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); |
| 2005 | } |
| 2006 | |
| 2007 | static int |
| 2008 | wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) |
| 2009 | { |
| 2010 | /* NB: 42 bytes is probably ok to have on the stack */ |
| 2011 | char buf[sizeof(uint16_t) + 40]; |
| 2012 | |
| 2013 | if (ie->ie_len > 40) |
| 2014 | return EINVAL; |
| 2015 | /* NB: firmware requires 16-bit ie length before ie data */ |
| 2016 | *(uint16_t *) buf = htole16(ie->ie_len); |
| 2017 | memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); |
| 2018 | return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); |
| 2019 | } |
| 2020 | |
| 2021 | int |
| 2022 | wi_alloc(device_t dev, int rid) |
| 2023 | { |
| 2024 | struct wi_softc *sc = device_get_softc(dev); |
| 2025 | |
| 2026 | if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { |
| 2027 | sc->iobase_rid = rid; |
| 2028 | sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, |
| 2029 | &sc->iobase_rid, 0, ~0, (1 << 6), |
| 2030 | rman_make_alignment_flags(1 << 6) | RF_ACTIVE); |
| 2031 | if (sc->iobase == NULL) { |
| 2032 | device_printf(dev, "No I/O space?!\n"); |
| 2033 | return ENXIO; |
| 2034 | } |
| 2035 | |
| 2036 | sc->wi_io_addr = rman_get_start(sc->iobase); |
| 2037 | sc->wi_btag = rman_get_bustag(sc->iobase); |
| 2038 | sc->wi_bhandle = rman_get_bushandle(sc->iobase); |
| 2039 | } else { |
| 2040 | sc->mem_rid = rid; |
| 2041 | sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, |
| 2042 | &sc->mem_rid, RF_ACTIVE); |
| 2043 | if (sc->mem == NULL) { |
| 2044 | device_printf(dev, "No Mem space on prism2.5?\n"); |
| 2045 | return ENXIO; |
| 2046 | } |
| 2047 | |
| 2048 | sc->wi_btag = rman_get_bustag(sc->mem); |
| 2049 | sc->wi_bhandle = rman_get_bushandle(sc->mem); |
| 2050 | } |
| 2051 | |
| 2052 | sc->irq_rid = 0; |
| 2053 | sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, |
| 2054 | RF_ACTIVE | |
| 2055 | ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); |
| 2056 | if (sc->irq == NULL) { |
| 2057 | wi_free(dev); |
| 2058 | device_printf(dev, "No irq?!\n"); |
| 2059 | return ENXIO; |
| 2060 | } |
| 2061 | |
| 2062 | sc->sc_dev = dev; |
| 2063 | sc->sc_unit = device_get_unit(dev); |
| 2064 | return 0; |
| 2065 | } |
| 2066 | |
| 2067 | void |
| 2068 | wi_free(device_t dev) |
| 2069 | { |
| 2070 | struct wi_softc *sc = device_get_softc(dev); |
| 2071 | |
| 2072 | if (sc->iobase != NULL) { |
| 2073 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); |
| 2074 | sc->iobase = NULL; |
| 2075 | } |
| 2076 | if (sc->irq != NULL) { |
| 2077 | bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); |
| 2078 | sc->irq = NULL; |
| 2079 | } |
| 2080 | if (sc->mem != NULL) { |
| 2081 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); |
| 2082 | sc->mem = NULL; |
| 2083 | } |
| 2084 | } |