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
33 /*
34 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
35 *
36 * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
37 * Electrical Engineering Department
38 * Columbia University, New York City
39 */
40
41 /*
42 * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
43 * from Lucent. Unlike the older cards, the new ones are programmed
44 * entirely via a firmware-driven controller called the Hermes.
45 * Unfortunately, Lucent will not release the Hermes programming manual
46 * without an NDA (if at all). What they do release is an API library
47 * called the HCF (Hardware Control Functions) which is supposed to
48 * do the device-specific operations of a device driver for you. The
49 * publically available version of the HCF library (the 'HCF Light') is
50 * a) extremely gross, b) lacks certain features, particularly support
51 * for 802.11 frames, and c) is contaminated by the GNU Public License.
52 *
53 * This driver does not use the HCF or HCF Light at all. Instead, it
54 * programs the Hermes controller directly, using information gleaned
55 * from the HCF Light code and corresponding documentation.
56 *
57 * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
58 * WaveLan cards (based on the Hermes chipset), as well as the newer
59 * Prism 2 chipsets with firmware from Intersil and Symbol.
60 */
61
62 #include <sys/cdefs.h>
63 __FBSDID("$FreeBSD: stable/9/sys/dev/wi/if_wi.c 248085 2013-03-09 02:36:32Z marius $");
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/bus.h>
83 #include <machine/resource.h>
84 #include <machine/atomic.h>
85 #include <sys/rman.h>
86
87 #include <net/if.h>
88 #include <net/if_arp.h>
89 #include <net/ethernet.h>
90 #include <net/if_dl.h>
91 #include <net/if_llc.h>
92 #include <net/if_media.h>
93 #include <net/if_types.h>
94
95 #include <net80211/ieee80211_var.h>
96 #include <net80211/ieee80211_ioctl.h>
97 #include <net80211/ieee80211_radiotap.h>
98
99 #include <netinet/in.h>
100 #include <netinet/in_systm.h>
101 #include <netinet/in_var.h>
102 #include <netinet/ip.h>
103 #include <netinet/if_ether.h>
104
105 #include <net/bpf.h>
106
107 #include <dev/wi/if_wavelan_ieee.h>
108 #include <dev/wi/if_wireg.h>
109 #include <dev/wi/if_wivar.h>
110
111 static struct ieee80211vap *wi_vap_create(struct ieee80211com *,
112 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
113 const uint8_t [IEEE80211_ADDR_LEN],
114 const uint8_t [IEEE80211_ADDR_LEN]);
115 static void wi_vap_delete(struct ieee80211vap *vap);
116 static void wi_stop_locked(struct wi_softc *sc, int disable);
117 static void wi_start_locked(struct ifnet *);
118 static void wi_start(struct ifnet *);
119 static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr,
120 struct mbuf *m0);
121 static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *,
122 const struct ieee80211_bpf_params *);
123 static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int);
124 static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state,
125 int);
126 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
127 int subtype, int rssi, int nf);
128 static int wi_reset(struct wi_softc *);
129 static void wi_watchdog(void *);
130 static int wi_ioctl(struct ifnet *, u_long, caddr_t);
131 static void wi_media_status(struct ifnet *, struct ifmediareq *);
132
133 static void wi_rx_intr(struct wi_softc *);
134 static void wi_tx_intr(struct wi_softc *);
135 static void wi_tx_ex_intr(struct wi_softc *);
136
137 static void wi_info_intr(struct wi_softc *);
138
139 static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *);
140 static int wi_write_wep(struct wi_softc *, struct ieee80211vap *);
141 static int wi_write_multi(struct wi_softc *);
142 static void wi_update_mcast(struct ifnet *);
143 static void wi_update_promisc(struct ifnet *);
144 static int wi_alloc_fid(struct wi_softc *, int, int *);
145 static void wi_read_nicid(struct wi_softc *);
146 static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
147
148 static int wi_cmd(struct wi_softc *, int, int, int, int);
149 static int wi_seek_bap(struct wi_softc *, int, int);
150 static int wi_read_bap(struct wi_softc *, int, int, void *, int);
151 static int wi_write_bap(struct wi_softc *, int, int, void *, int);
152 static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
153 static int wi_read_rid(struct wi_softc *, int, void *, int *);
154 static int wi_write_rid(struct wi_softc *, int, void *, int);
155 static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *);
156
157 static void wi_scan_start(struct ieee80211com *);
158 static void wi_scan_end(struct ieee80211com *);
159 static void wi_set_channel(struct ieee80211com *);
160
161 static __inline int
wi_write_val(struct wi_softc * sc,int rid,u_int16_t val)162 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
163 {
164
165 val = htole16(val);
166 return wi_write_rid(sc, rid, &val, sizeof(val));
167 }
168
169 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
170 "Wireless driver parameters");
171
172 static struct timeval lasttxerror; /* time of last tx error msg */
173 static int curtxeps; /* current tx error msgs/sec */
174 static int wi_txerate = 0; /* tx error rate: max msgs/sec */
175 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
176 0, "max tx error msgs/sec; 0 to disable msgs");
177
178 #define WI_DEBUG
179 #ifdef WI_DEBUG
180 static int wi_debug = 0;
181 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
182 0, "control debugging printfs");
183 #define DPRINTF(X) if (wi_debug) printf X
184 #else
185 #define DPRINTF(X)
186 #endif
187
188 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
189
190 struct wi_card_ident wi_card_ident[] = {
191 /* CARD_ID CARD_NAME FIRM_TYPE */
192 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT },
193 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT },
194 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT },
195 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL },
196 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL },
197 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL },
198 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL },
199 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL },
200 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL },
201 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL },
202 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL },
203 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL },
204 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
205 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
206 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
207 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
208 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
209 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
210 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
211 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
212 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
213 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
214 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
215 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
216 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
217 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
218 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
219 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
220 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
221 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
222 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
223 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
224 { 0, NULL, 0 },
225 };
226
227 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" };
228
229 devclass_t wi_devclass;
230
231 int
wi_attach(device_t dev)232 wi_attach(device_t dev)
233 {
234 struct wi_softc *sc = device_get_softc(dev);
235 struct ieee80211com *ic;
236 struct ifnet *ifp;
237 int i, nrates, buflen;
238 u_int16_t val;
239 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
240 struct ieee80211_rateset *rs;
241 struct sysctl_ctx_list *sctx;
242 struct sysctl_oid *soid;
243 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
244 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
245 };
246 int error;
247 uint8_t macaddr[IEEE80211_ADDR_LEN];
248
249 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
250 if (ifp == NULL) {
251 device_printf(dev, "can not if_alloc\n");
252 wi_free(dev);
253 return ENOSPC;
254 }
255 ic = ifp->if_l2com;
256
257 sc->sc_firmware_type = WI_NOTYPE;
258 sc->wi_cmd_count = 500;
259 /* Reset the NIC. */
260 if (wi_reset(sc) != 0) {
261 wi_free(dev);
262 return ENXIO; /* XXX */
263 }
264
265 /* Read NIC identification */
266 wi_read_nicid(sc);
267 switch (sc->sc_firmware_type) {
268 case WI_LUCENT:
269 if (sc->sc_sta_firmware_ver < 60006)
270 goto reject;
271 break;
272 case WI_INTERSIL:
273 if (sc->sc_sta_firmware_ver < 800)
274 goto reject;
275 break;
276 default:
277 reject:
278 device_printf(dev, "Sorry, this card is not supported "
279 "(type %d, firmware ver %d)\n",
280 sc->sc_firmware_type, sc->sc_sta_firmware_ver);
281 wi_free(dev);
282 return EOPNOTSUPP;
283 }
284
285 /* Export info about the device via sysctl */
286 sctx = device_get_sysctl_ctx(dev);
287 soid = device_get_sysctl_tree(dev);
288 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
289 "firmware_type", CTLFLAG_RD,
290 wi_firmware_names[sc->sc_firmware_type], 0,
291 "Firmware type string");
292 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version",
293 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0,
294 "Station Firmware version");
295 if (sc->sc_firmware_type == WI_INTERSIL)
296 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
297 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0,
298 "Primary Firmware version");
299 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id",
300 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id");
301 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name",
302 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name");
303
304 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
305 MTX_DEF | MTX_RECURSE);
306 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
307
308 /*
309 * Read the station address.
310 * And do it twice. I've seen PRISM-based cards that return
311 * an error when trying to read it the first time, which causes
312 * the probe to fail.
313 */
314 buflen = IEEE80211_ADDR_LEN;
315 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
316 if (error != 0) {
317 buflen = IEEE80211_ADDR_LEN;
318 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
319 }
320 if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) {
321 if (error != 0)
322 device_printf(dev, "mac read failed %d\n", error);
323 else {
324 device_printf(dev, "mac read failed (all zeros)\n");
325 error = ENXIO;
326 }
327 wi_free(dev);
328 return (error);
329 }
330
331 ifp->if_softc = sc;
332 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
333 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
334 ifp->if_ioctl = wi_ioctl;
335 ifp->if_start = wi_start;
336 ifp->if_init = wi_init;
337 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
338 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
339 IFQ_SET_READY(&ifp->if_snd);
340
341 ic->ic_ifp = ifp;
342 ic->ic_phytype = IEEE80211_T_DS;
343 ic->ic_opmode = IEEE80211_M_STA;
344 ic->ic_caps = IEEE80211_C_STA
345 | IEEE80211_C_PMGT
346 | IEEE80211_C_MONITOR
347 ;
348
349 /*
350 * Query the card for available channels and setup the
351 * channel table. We assume these are all 11b channels.
352 */
353 buflen = sizeof(val);
354 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
355 val = htole16(0x1fff); /* assume 1-11 */
356 KASSERT(val != 0, ("wi_attach: no available channels listed!"));
357
358 val <<= 1; /* shift for base 1 indices */
359 for (i = 1; i < 16; i++) {
360 struct ieee80211_channel *c;
361
362 if (!isset((u_int8_t*)&val, i))
363 continue;
364 c = &ic->ic_channels[ic->ic_nchans++];
365 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
366 c->ic_flags = IEEE80211_CHAN_B;
367 c->ic_ieee = i;
368 /* XXX txpowers? */
369 }
370
371 /*
372 * Set flags based on firmware version.
373 */
374 switch (sc->sc_firmware_type) {
375 case WI_LUCENT:
376 sc->sc_ntxbuf = 1;
377 ic->ic_caps |= IEEE80211_C_IBSS;
378
379 sc->sc_ibss_port = WI_PORTTYPE_BSS;
380 sc->sc_monitor_port = WI_PORTTYPE_ADHOC;
381 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
382 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
383 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
384 break;
385 case WI_INTERSIL:
386 sc->sc_ntxbuf = WI_NTXBUF;
387 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR
388 | WI_FLAGS_HAS_ROAMING;
389 /*
390 * Old firmware are slow, so give peace a chance.
391 */
392 if (sc->sc_sta_firmware_ver < 10000)
393 sc->wi_cmd_count = 5000;
394 if (sc->sc_sta_firmware_ver > 10101)
395 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
396 ic->ic_caps |= IEEE80211_C_IBSS;
397 /*
398 * version 0.8.3 and newer are the only ones that are known
399 * to currently work. Earlier versions can be made to work,
400 * at least according to the Linux driver but we require
401 * monitor mode so this is irrelevant.
402 */
403 ic->ic_caps |= IEEE80211_C_HOSTAP;
404 if (sc->sc_sta_firmware_ver >= 10603)
405 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY;
406 if (sc->sc_sta_firmware_ver >= 10700) {
407 /*
408 * 1.7.0+ have the necessary support for sta mode WPA.
409 */
410 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT;
411 ic->ic_caps |= IEEE80211_C_WPA;
412 }
413
414 sc->sc_ibss_port = WI_PORTTYPE_IBSS;
415 sc->sc_monitor_port = WI_PORTTYPE_APSILENT;
416 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
417 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
418 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
419 break;
420 }
421
422 /*
423 * Find out if we support WEP on this card.
424 */
425 buflen = sizeof(val);
426 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
427 val != htole16(0))
428 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
429
430 /* Find supported rates. */
431 buflen = sizeof(ratebuf);
432 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
433 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
434 nrates = le16toh(*(u_int16_t *)ratebuf);
435 if (nrates > IEEE80211_RATE_MAXSIZE)
436 nrates = IEEE80211_RATE_MAXSIZE;
437 rs->rs_nrates = 0;
438 for (i = 0; i < nrates; i++)
439 if (ratebuf[2+i])
440 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
441 } else {
442 /* XXX fallback on error? */
443 }
444
445 buflen = sizeof(val);
446 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
447 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
448 sc->sc_dbm_offset = le16toh(val);
449 }
450
451 sc->sc_portnum = WI_DEFAULT_PORT;
452
453 ieee80211_ifattach(ic, macaddr);
454 ic->ic_raw_xmit = wi_raw_xmit;
455 ic->ic_scan_start = wi_scan_start;
456 ic->ic_scan_end = wi_scan_end;
457 ic->ic_set_channel = wi_set_channel;
458
459 ic->ic_vap_create = wi_vap_create;
460 ic->ic_vap_delete = wi_vap_delete;
461 ic->ic_update_mcast = wi_update_mcast;
462 ic->ic_update_promisc = wi_update_promisc;
463
464 ieee80211_radiotap_attach(ic,
465 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
466 WI_TX_RADIOTAP_PRESENT,
467 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
468 WI_RX_RADIOTAP_PRESENT);
469
470 if (bootverbose)
471 ieee80211_announce(ic);
472
473 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
474 NULL, wi_intr, sc, &sc->wi_intrhand);
475 if (error) {
476 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
477 ieee80211_ifdetach(ic);
478 if_free(sc->sc_ifp);
479 wi_free(dev);
480 return error;
481 }
482
483 return (0);
484 }
485
486 int
wi_detach(device_t dev)487 wi_detach(device_t dev)
488 {
489 struct wi_softc *sc = device_get_softc(dev);
490 struct ifnet *ifp = sc->sc_ifp;
491 struct ieee80211com *ic = ifp->if_l2com;
492
493 WI_LOCK(sc);
494
495 /* check if device was removed */
496 sc->wi_gone |= !bus_child_present(dev);
497
498 wi_stop_locked(sc, 0);
499 WI_UNLOCK(sc);
500 ieee80211_ifdetach(ic);
501
502 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
503 if_free(sc->sc_ifp);
504 wi_free(dev);
505 mtx_destroy(&sc->sc_mtx);
506 return (0);
507 }
508
509 static struct ieee80211vap *
wi_vap_create(struct ieee80211com * ic,const char name[IFNAMSIZ],int unit,enum ieee80211_opmode opmode,int flags,const uint8_t bssid[IEEE80211_ADDR_LEN],const uint8_t mac[IEEE80211_ADDR_LEN])510 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
511 enum ieee80211_opmode 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 *) malloc(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
wi_vap_delete(struct ieee80211vap * vap)567 wi_vap_delete(struct ieee80211vap *vap)
568 {
569 struct wi_vap *wvp = WI_VAP(vap);
570
571 ieee80211_vap_detach(vap);
572 free(wvp, M_80211_VAP);
573 }
574
575 int
wi_shutdown(device_t dev)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
wi_intr(void * arg)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 WI_LOCK(sc);
592
593 if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
594 CSR_WRITE_2(sc, WI_INT_EN, 0);
595 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
596 WI_UNLOCK(sc);
597 return;
598 }
599
600 /* Disable interrupts. */
601 CSR_WRITE_2(sc, WI_INT_EN, 0);
602
603 status = CSR_READ_2(sc, WI_EVENT_STAT);
604 if (status & WI_EV_RX)
605 wi_rx_intr(sc);
606 if (status & WI_EV_ALLOC)
607 wi_tx_intr(sc);
608 if (status & WI_EV_TX_EXC)
609 wi_tx_ex_intr(sc);
610 if (status & WI_EV_INFO)
611 wi_info_intr(sc);
612 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
613 !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
614 wi_start_locked(ifp);
615
616 /* Re-enable interrupts. */
617 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
618
619 WI_UNLOCK(sc);
620
621 return;
622 }
623
624 static void
wi_enable(struct wi_softc * sc)625 wi_enable(struct wi_softc *sc)
626 {
627 /* Enable interrupts */
628 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
629
630 /* enable port */
631 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
632 sc->sc_enabled = 1;
633 }
634
635 static int
wi_setup_locked(struct wi_softc * sc,int porttype,int mode,uint8_t mac[IEEE80211_ADDR_LEN])636 wi_setup_locked(struct wi_softc *sc, int porttype, int mode,
637 uint8_t mac[IEEE80211_ADDR_LEN])
638 {
639 int i;
640
641 wi_reset(sc);
642
643 wi_write_val(sc, WI_RID_PORTTYPE, porttype);
644 wi_write_val(sc, WI_RID_CREATE_IBSS, mode);
645 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304);
646 /* XXX IEEE80211_BPF_NOACK wants 0 */
647 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2);
648 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
649 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */
650
651 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN);
652
653 /* Allocate fids for the card */
654 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
655 for (i = 0; i < sc->sc_ntxbuf; i++) {
656 int error = wi_alloc_fid(sc, sc->sc_buflen,
657 &sc->sc_txd[i].d_fid);
658 if (error) {
659 device_printf(sc->sc_dev,
660 "tx buffer allocation failed (error %u)\n",
661 error);
662 return error;
663 }
664 sc->sc_txd[i].d_len = 0;
665 }
666 sc->sc_txcur = sc->sc_txnext = 0;
667
668 return 0;
669 }
670
671 static void
wi_init_locked(struct wi_softc * sc)672 wi_init_locked(struct wi_softc *sc)
673 {
674 struct ifnet *ifp = sc->sc_ifp;
675 int wasenabled;
676
677 WI_LOCK_ASSERT(sc);
678
679 wasenabled = sc->sc_enabled;
680 if (wasenabled)
681 wi_stop_locked(sc, 1);
682
683 if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) {
684 if_printf(ifp, "interface not running\n");
685 wi_stop_locked(sc, 1);
686 return;
687 }
688
689 ifp->if_drv_flags |= IFF_DRV_RUNNING;
690 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
691
692 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
693
694 wi_enable(sc); /* Enable desired port */
695 }
696
697 void
wi_init(void * arg)698 wi_init(void *arg)
699 {
700 struct wi_softc *sc = arg;
701 struct ifnet *ifp = sc->sc_ifp;
702 struct ieee80211com *ic = ifp->if_l2com;
703
704 WI_LOCK(sc);
705 wi_init_locked(sc);
706 WI_UNLOCK(sc);
707
708 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
709 ieee80211_start_all(ic); /* start all vap's */
710 }
711
712 static void
wi_stop_locked(struct wi_softc * sc,int disable)713 wi_stop_locked(struct wi_softc *sc, int disable)
714 {
715 struct ifnet *ifp = sc->sc_ifp;
716
717 WI_LOCK_ASSERT(sc);
718
719 if (sc->sc_enabled && !sc->wi_gone) {
720 CSR_WRITE_2(sc, WI_INT_EN, 0);
721 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
722 if (disable)
723 sc->sc_enabled = 0;
724 } else if (sc->wi_gone && disable) /* gone --> not enabled */
725 sc->sc_enabled = 0;
726
727 callout_stop(&sc->sc_watchdog);
728 sc->sc_tx_timer = 0;
729 sc->sc_false_syns = 0;
730
731 ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
732 }
733
734 void
wi_stop(struct wi_softc * sc,int disable)735 wi_stop(struct wi_softc *sc, int disable)
736 {
737 WI_LOCK(sc);
738 wi_stop_locked(sc, disable);
739 WI_UNLOCK(sc);
740 }
741
742 static void
wi_set_channel(struct ieee80211com * ic)743 wi_set_channel(struct ieee80211com *ic)
744 {
745 struct ifnet *ifp = ic->ic_ifp;
746 struct wi_softc *sc = ifp->if_softc;
747
748 DPRINTF(("%s: channel %d, %sscanning\n", __func__,
749 ieee80211_chan2ieee(ic, ic->ic_curchan),
750 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!"));
751
752 WI_LOCK(sc);
753 wi_write_val(sc, WI_RID_OWN_CHNL,
754 ieee80211_chan2ieee(ic, ic->ic_curchan));
755 WI_UNLOCK(sc);
756 }
757
758 static void
wi_scan_start(struct ieee80211com * ic)759 wi_scan_start(struct ieee80211com *ic)
760 {
761 struct ifnet *ifp = ic->ic_ifp;
762 struct wi_softc *sc = ifp->if_softc;
763 struct ieee80211_scan_state *ss = ic->ic_scan;
764
765 DPRINTF(("%s\n", __func__));
766
767 WI_LOCK(sc);
768 /*
769 * Switch device to monitor mode.
770 */
771 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port);
772 if (sc->sc_firmware_type == WI_INTERSIL) {
773 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
774 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
775 }
776 /* force full dwell time to compensate for firmware overhead */
777 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400);
778 WI_UNLOCK(sc);
779
780 }
781
782 static void
wi_scan_end(struct ieee80211com * ic)783 wi_scan_end(struct ieee80211com *ic)
784 {
785 struct ifnet *ifp = ic->ic_ifp;
786 struct wi_softc *sc = ifp->if_softc;
787
788 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype));
789
790 WI_LOCK(sc);
791 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype);
792 if (sc->sc_firmware_type == WI_INTERSIL) {
793 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
794 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
795 }
796 WI_UNLOCK(sc);
797 }
798
799 static void
wi_recv_mgmt(struct ieee80211_node * ni,struct mbuf * m,int subtype,int rssi,int nf)800 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
801 int subtype, int rssi, int nf)
802 {
803 struct ieee80211vap *vap = ni->ni_vap;
804
805 switch (subtype) {
806 case IEEE80211_FC0_SUBTYPE_AUTH:
807 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
808 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
809 /* NB: filter frames that trigger state changes */
810 return;
811 }
812 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf);
813 }
814
815 static int
wi_newstate_sta(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)816 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
817 {
818 struct ieee80211com *ic = vap->iv_ic;
819 struct ifnet *ifp = ic->ic_ifp;
820 struct ieee80211_node *bss;
821 struct wi_softc *sc = ifp->if_softc;
822
823 DPRINTF(("%s: %s -> %s\n", __func__,
824 ieee80211_state_name[vap->iv_state],
825 ieee80211_state_name[nstate]));
826
827 if (nstate == IEEE80211_S_AUTH) {
828 WI_LOCK(sc);
829 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr);
830
831 if (vap->iv_flags & IEEE80211_F_PMGTON) {
832 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
833 wi_write_val(sc, WI_RID_PM_ENABLED, 1);
834 }
835 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
836 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
837 wi_write_val(sc, WI_RID_FRAG_THRESH,
838 vap->iv_fragthreshold);
839 wi_write_txrate(sc, vap);
840
841 bss = vap->iv_bss;
842 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen);
843 wi_write_val(sc, WI_RID_OWN_CHNL,
844 ieee80211_chan2ieee(ic, bss->ni_chan));
845
846 /* Configure WEP. */
847 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
848 wi_write_wep(sc, vap);
849 else
850 sc->sc_encryption = 0;
851
852 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
853 (vap->iv_flags & IEEE80211_F_WPA)) {
854 wi_write_val(sc, WI_RID_WPA_HANDLING, 1);
855 if (vap->iv_appie_wpa != NULL)
856 wi_write_appie(sc, WI_RID_WPA_DATA,
857 vap->iv_appie_wpa);
858 }
859
860 wi_enable(sc); /* enable port */
861
862 /* Lucent firmware does not support the JOIN RID. */
863 if (sc->sc_firmware_type == WI_INTERSIL) {
864 struct wi_joinreq join;
865
866 memset(&join, 0, sizeof(join));
867 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid);
868 join.wi_chan = htole16(
869 ieee80211_chan2ieee(ic, bss->ni_chan));
870 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
871 }
872 WI_UNLOCK(sc);
873
874 /*
875 * NB: don't go through 802.11 layer, it'll send auth frame;
876 * instead we drive the state machine from the link status
877 * notification we get on association.
878 */
879 vap->iv_state = nstate;
880 return (0);
881 }
882 return WI_VAP(vap)->wv_newstate(vap, nstate, arg);
883 }
884
885 static int
wi_newstate_hostap(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)886 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
887 {
888 struct ieee80211com *ic = vap->iv_ic;
889 struct ifnet *ifp = ic->ic_ifp;
890 struct ieee80211_node *bss;
891 struct wi_softc *sc = ifp->if_softc;
892 int error;
893
894 DPRINTF(("%s: %s -> %s\n", __func__,
895 ieee80211_state_name[vap->iv_state],
896 ieee80211_state_name[nstate]));
897
898 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg);
899 if (error == 0 && nstate == IEEE80211_S_RUN) {
900 WI_LOCK(sc);
901 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr);
902
903 bss = vap->iv_bss;
904 wi_write_ssid(sc, WI_RID_OWN_SSID,
905 bss->ni_essid, bss->ni_esslen);
906 wi_write_val(sc, WI_RID_OWN_CHNL,
907 ieee80211_chan2ieee(ic, bss->ni_chan));
908 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3);
909 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf);
910 wi_write_txrate(sc, vap);
911
912 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval);
913 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period);
914
915 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
916 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
917 wi_write_val(sc, WI_RID_FRAG_THRESH,
918 vap->iv_fragthreshold);
919
920 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) &&
921 (vap->iv_flags & IEEE80211_F_HIDESSID)) {
922 /*
923 * bit 0 means hide SSID in beacons,
924 * bit 1 means don't respond to bcast probe req
925 */
926 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3);
927 }
928
929 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
930 (vap->iv_flags & IEEE80211_F_WPA) &&
931 vap->iv_appie_wpa != NULL)
932 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa);
933
934 wi_write_val(sc, WI_RID_PROMISC, 0);
935
936 /* Configure WEP. */
937 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
938 wi_write_wep(sc, vap);
939 else
940 sc->sc_encryption = 0;
941
942 wi_enable(sc); /* enable port */
943 WI_UNLOCK(sc);
944 }
945 return error;
946 }
947
948 static void
wi_start_locked(struct ifnet * ifp)949 wi_start_locked(struct ifnet *ifp)
950 {
951 struct wi_softc *sc = ifp->if_softc;
952 struct ieee80211_node *ni;
953 struct ieee80211_frame *wh;
954 struct mbuf *m0;
955 struct ieee80211_key *k;
956 struct wi_frame frmhdr;
957 const struct llc *llc;
958 int cur;
959
960 WI_LOCK_ASSERT(sc);
961
962 if (sc->wi_gone)
963 return;
964
965 memset(&frmhdr, 0, sizeof(frmhdr));
966 cur = sc->sc_txnext;
967 for (;;) {
968 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
969 if (m0 == NULL)
970 break;
971 if (sc->sc_txd[cur].d_len != 0) {
972 IFQ_DRV_PREPEND(&ifp->if_snd, m0);
973 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
974 break;
975 }
976 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
977
978 /* reconstruct 802.3 header */
979 wh = mtod(m0, struct ieee80211_frame *);
980 switch (wh->i_fc[1]) {
981 case IEEE80211_FC1_DIR_TODS:
982 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
983 wh->i_addr2);
984 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
985 wh->i_addr3);
986 break;
987 case IEEE80211_FC1_DIR_NODS:
988 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
989 wh->i_addr2);
990 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
991 wh->i_addr1);
992 break;
993 case IEEE80211_FC1_DIR_FROMDS:
994 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
995 wh->i_addr3);
996 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
997 wh->i_addr1);
998 break;
999 }
1000 llc = (const struct llc *)(
1001 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh));
1002 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type;
1003 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
1004 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1005 k = ieee80211_crypto_encap(ni, m0);
1006 if (k == NULL) {
1007 ieee80211_free_node(ni);
1008 m_freem(m0);
1009 continue;
1010 }
1011 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
1012 }
1013
1014 if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
1015 sc->sc_tx_th.wt_rate = ni->ni_txrate;
1016 ieee80211_radiotap_tx(ni->ni_vap, m0);
1017 }
1018
1019 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
1020 (caddr_t)&frmhdr.wi_whdr);
1021 m_adj(m0, sizeof(struct ieee80211_frame));
1022 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
1023 ieee80211_free_node(ni);
1024 if (wi_start_tx(ifp, &frmhdr, m0))
1025 continue;
1026
1027 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
1028 ifp->if_opackets++;
1029 }
1030 }
1031
1032 static void
wi_start(struct ifnet * ifp)1033 wi_start(struct ifnet *ifp)
1034 {
1035 struct wi_softc *sc = ifp->if_softc;
1036
1037 WI_LOCK(sc);
1038 wi_start_locked(ifp);
1039 WI_UNLOCK(sc);
1040 }
1041
1042 static int
wi_start_tx(struct ifnet * ifp,struct wi_frame * frmhdr,struct mbuf * m0)1043 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0)
1044 {
1045 struct wi_softc *sc = ifp->if_softc;
1046 int cur = sc->sc_txnext;
1047 int fid, off, error;
1048
1049 fid = sc->sc_txd[cur].d_fid;
1050 off = sizeof(*frmhdr);
1051 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0
1052 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
1053 m_freem(m0);
1054 if (error) {
1055 ifp->if_oerrors++;
1056 return -1;
1057 }
1058 sc->sc_txd[cur].d_len = off;
1059 if (sc->sc_txcur == cur) {
1060 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
1061 if_printf(ifp, "xmit failed\n");
1062 sc->sc_txd[cur].d_len = 0;
1063 return -1;
1064 }
1065 sc->sc_tx_timer = 5;
1066 }
1067 return 0;
1068 }
1069
1070 static int
wi_raw_xmit(struct ieee80211_node * ni,struct mbuf * m0,const struct ieee80211_bpf_params * params)1071 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0,
1072 const struct ieee80211_bpf_params *params)
1073 {
1074 struct ieee80211com *ic = ni->ni_ic;
1075 struct ifnet *ifp = ic->ic_ifp;
1076 struct ieee80211vap *vap = ni->ni_vap;
1077 struct wi_softc *sc = ifp->if_softc;
1078 struct ieee80211_key *k;
1079 struct ieee80211_frame *wh;
1080 struct wi_frame frmhdr;
1081 int cur;
1082 int rc = 0;
1083
1084 WI_LOCK(sc);
1085
1086 if (sc->wi_gone) {
1087 rc = ENETDOWN;
1088 goto out;
1089 }
1090 memset(&frmhdr, 0, sizeof(frmhdr));
1091 cur = sc->sc_txnext;
1092 if (sc->sc_txd[cur].d_len != 0) {
1093 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1094 rc = ENOBUFS;
1095 goto out;
1096 }
1097 m0->m_pkthdr.rcvif = NULL;
1098
1099 m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
1100 (caddr_t)&frmhdr.wi_ehdr);
1101 frmhdr.wi_ehdr.ether_type = 0;
1102 wh = mtod(m0, struct ieee80211_frame *);
1103
1104 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
1105 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK))
1106 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY);
1107 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) &&
1108 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) {
1109 k = ieee80211_crypto_encap(ni, m0);
1110 if (k == NULL) {
1111 rc = ENOMEM;
1112 goto out;
1113 }
1114 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
1115 }
1116 if (ieee80211_radiotap_active_vap(vap)) {
1117 sc->sc_tx_th.wt_rate = ni->ni_txrate;
1118 ieee80211_radiotap_tx(vap, m0);
1119 }
1120 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
1121 (caddr_t)&frmhdr.wi_whdr);
1122 m_adj(m0, sizeof(struct ieee80211_frame));
1123 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
1124 if (wi_start_tx(ifp, &frmhdr, m0) < 0) {
1125 m0 = NULL;
1126 rc = EIO;
1127 goto out;
1128 }
1129 m0 = NULL;
1130
1131 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
1132 out:
1133 WI_UNLOCK(sc);
1134
1135 if (m0 != NULL)
1136 m_freem(m0);
1137 ieee80211_free_node(ni);
1138 return rc;
1139 }
1140
1141 static int
wi_reset(struct wi_softc * sc)1142 wi_reset(struct wi_softc *sc)
1143 {
1144 #define WI_INIT_TRIES 3
1145 int i, error = 0;
1146
1147 for (i = 0; i < WI_INIT_TRIES; i++) {
1148 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0);
1149 if (error == 0)
1150 break;
1151 DELAY(WI_DELAY * 1000);
1152 }
1153 sc->sc_reset = 1;
1154 if (i == WI_INIT_TRIES) {
1155 if_printf(sc->sc_ifp, "reset failed\n");
1156 return error;
1157 }
1158
1159 CSR_WRITE_2(sc, WI_INT_EN, 0);
1160 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1161
1162 /* Calibrate timer. */
1163 wi_write_val(sc, WI_RID_TICK_TIME, 8);
1164
1165 return 0;
1166 #undef WI_INIT_TRIES
1167 }
1168
1169 static void
wi_watchdog(void * arg)1170 wi_watchdog(void *arg)
1171 {
1172 struct wi_softc *sc = arg;
1173 struct ifnet *ifp = sc->sc_ifp;
1174
1175 WI_LOCK_ASSERT(sc);
1176
1177 if (!sc->sc_enabled)
1178 return;
1179
1180 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
1181 if_printf(ifp, "device timeout\n");
1182 ifp->if_oerrors++;
1183 wi_init_locked(ifp->if_softc);
1184 return;
1185 }
1186 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
1187 }
1188
1189 static int
wi_ioctl(struct ifnet * ifp,u_long cmd,caddr_t data)1190 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1191 {
1192 struct wi_softc *sc = ifp->if_softc;
1193 struct ieee80211com *ic = ifp->if_l2com;
1194 struct ifreq *ifr = (struct ifreq *) data;
1195 int error = 0, startall = 0;
1196
1197 switch (cmd) {
1198 case SIOCSIFFLAGS:
1199 WI_LOCK(sc);
1200 /*
1201 * Can't do promisc and hostap at the same time. If all that's
1202 * changing is the promisc flag, try to short-circuit a call to
1203 * wi_init() by just setting PROMISC in the hardware.
1204 */
1205 if (ifp->if_flags & IFF_UP) {
1206 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1207 ifp->if_drv_flags & IFF_DRV_RUNNING) {
1208 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) {
1209 wi_write_val(sc, WI_RID_PROMISC,
1210 (ifp->if_flags & IFF_PROMISC) != 0);
1211 } else {
1212 wi_init_locked(sc);
1213 startall = 1;
1214 }
1215 } else {
1216 wi_init_locked(sc);
1217 startall = 1;
1218 }
1219 } else {
1220 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1221 wi_stop_locked(sc, 1);
1222 sc->wi_gone = 0;
1223 }
1224 sc->sc_if_flags = ifp->if_flags;
1225 WI_UNLOCK(sc);
1226 if (startall)
1227 ieee80211_start_all(ic);
1228 break;
1229 case SIOCGIFMEDIA:
1230 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
1231 break;
1232 case SIOCGIFADDR:
1233 error = ether_ioctl(ifp, cmd, data);
1234 break;
1235 default:
1236 error = EINVAL;
1237 break;
1238 }
1239 return error;
1240 }
1241
1242 static void
wi_media_status(struct ifnet * ifp,struct ifmediareq * imr)1243 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1244 {
1245 struct ieee80211vap *vap = ifp->if_softc;
1246 struct ieee80211com *ic = vap->iv_ic;
1247 struct wi_softc *sc = ic->ic_ifp->if_softc;
1248 u_int16_t val;
1249 int rate, len;
1250
1251 len = sizeof(val);
1252 if (sc->sc_enabled &&
1253 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1254 len == sizeof(val)) {
1255 /* convert to 802.11 rate */
1256 val = le16toh(val);
1257 rate = val * 2;
1258 if (sc->sc_firmware_type == WI_LUCENT) {
1259 if (rate == 10)
1260 rate = 11; /* 5.5Mbps */
1261 } else {
1262 if (rate == 4*2)
1263 rate = 11; /* 5.5Mbps */
1264 else if (rate == 8*2)
1265 rate = 22; /* 11Mbps */
1266 }
1267 vap->iv_bss->ni_txrate = rate;
1268 }
1269 ieee80211_media_status(ifp, imr);
1270 }
1271
1272 static void
wi_sync_bssid(struct wi_softc * sc,u_int8_t new_bssid[IEEE80211_ADDR_LEN])1273 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1274 {
1275 struct ifnet *ifp = sc->sc_ifp;
1276 struct ieee80211com *ic = ifp->if_l2com;
1277 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1278 struct ieee80211_node *ni = vap->iv_bss;
1279
1280 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1281 return;
1282
1283 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
1284 DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
1285
1286 /* In promiscuous mode, the BSSID field is not a reliable
1287 * indicator of the firmware's BSSID. Damp spurious
1288 * change-of-BSSID indications.
1289 */
1290 if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1291 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1292 WI_MAX_FALSE_SYNS))
1293 return;
1294
1295 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1296 #if 0
1297 /*
1298 * XXX hack; we should create a new node with the new bssid
1299 * and replace the existing ic_bss with it but since we don't
1300 * process management frames to collect state we cheat by
1301 * reusing the existing node as we know wi_newstate will be
1302 * called and it will overwrite the node state.
1303 */
1304 ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1305 #endif
1306 }
1307
1308 static __noinline void
wi_rx_intr(struct wi_softc * sc)1309 wi_rx_intr(struct wi_softc *sc)
1310 {
1311 struct ifnet *ifp = sc->sc_ifp;
1312 struct ieee80211com *ic = ifp->if_l2com;
1313 struct wi_frame frmhdr;
1314 struct mbuf *m;
1315 struct ieee80211_frame *wh;
1316 struct ieee80211_node *ni;
1317 int fid, len, off;
1318 u_int8_t dir;
1319 u_int16_t status;
1320 int8_t rssi, nf;
1321
1322 fid = CSR_READ_2(sc, WI_RX_FID);
1323
1324 /* First read in the frame header */
1325 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1326 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1327 ifp->if_ierrors++;
1328 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1329 return;
1330 }
1331
1332 /*
1333 * Drop undecryptable or packets with receive errors here
1334 */
1335 status = le16toh(frmhdr.wi_status);
1336 if (status & WI_STAT_ERRSTAT) {
1337 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1338 ifp->if_ierrors++;
1339 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
1340 return;
1341 }
1342
1343 len = le16toh(frmhdr.wi_dat_len);
1344 off = ALIGN(sizeof(struct ieee80211_frame));
1345
1346 /*
1347 * Sometimes the PRISM2.x returns bogusly large frames. Except
1348 * in monitor mode, just throw them away.
1349 */
1350 if (off + len > MCLBYTES) {
1351 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1352 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1353 ifp->if_ierrors++;
1354 DPRINTF(("wi_rx_intr: oversized packet\n"));
1355 return;
1356 } else
1357 len = 0;
1358 }
1359
1360 if (off + len > MHLEN)
1361 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1362 else
1363 m = m_gethdr(M_NOWAIT, MT_DATA);
1364 if (m == NULL) {
1365 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1366 ifp->if_ierrors++;
1367 DPRINTF(("wi_rx_intr: MGET failed\n"));
1368 return;
1369 }
1370 m->m_data += off - sizeof(struct ieee80211_frame);
1371 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1372 wi_read_bap(sc, fid, sizeof(frmhdr),
1373 m->m_data + sizeof(struct ieee80211_frame), len);
1374 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1375 m->m_pkthdr.rcvif = ifp;
1376
1377 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1378
1379 rssi = frmhdr.wi_rx_signal;
1380 nf = frmhdr.wi_rx_silence;
1381 if (ieee80211_radiotap_active(ic)) {
1382 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th;
1383 uint32_t rstamp;
1384
1385 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1386 le16toh(frmhdr.wi_rx_tstamp1);
1387 tap->wr_tsf = htole64((uint64_t)rstamp);
1388 /* XXX replace divide by table */
1389 tap->wr_rate = frmhdr.wi_rx_rate / 5;
1390 tap->wr_flags = 0;
1391 if (frmhdr.wi_status & WI_STAT_PCF)
1392 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1393 if (m->m_flags & M_WEP)
1394 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP;
1395 tap->wr_antsignal = rssi;
1396 tap->wr_antnoise = nf;
1397 }
1398
1399 /* synchronize driver's BSSID with firmware's BSSID */
1400 wh = mtod(m, struct ieee80211_frame *);
1401 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1402 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1403 wi_sync_bssid(sc, wh->i_addr3);
1404
1405 WI_UNLOCK(sc);
1406
1407 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1408 if (ni != NULL) {
1409 (void) ieee80211_input(ni, m, rssi, nf);
1410 ieee80211_free_node(ni);
1411 } else
1412 (void) ieee80211_input_all(ic, m, rssi, nf);
1413
1414 WI_LOCK(sc);
1415 }
1416
1417 static __noinline void
wi_tx_ex_intr(struct wi_softc * sc)1418 wi_tx_ex_intr(struct wi_softc *sc)
1419 {
1420 struct ifnet *ifp = sc->sc_ifp;
1421 struct wi_frame frmhdr;
1422 int fid;
1423
1424 fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1425 /* Read in the frame header */
1426 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1427 u_int16_t status = le16toh(frmhdr.wi_status);
1428 /*
1429 * Spontaneous station disconnects appear as xmit
1430 * errors. Don't announce them and/or count them
1431 * as an output error.
1432 */
1433 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1434 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1435 if_printf(ifp, "tx failed");
1436 if (status & WI_TXSTAT_RET_ERR)
1437 printf(", retry limit exceeded");
1438 if (status & WI_TXSTAT_AGED_ERR)
1439 printf(", max transmit lifetime exceeded");
1440 if (status & WI_TXSTAT_DISCONNECT)
1441 printf(", port disconnected");
1442 if (status & WI_TXSTAT_FORM_ERR)
1443 printf(", invalid format (data len %u src %6D)",
1444 le16toh(frmhdr.wi_dat_len),
1445 frmhdr.wi_ehdr.ether_shost, ":");
1446 if (status & ~0xf)
1447 printf(", status=0x%x", status);
1448 printf("\n");
1449 }
1450 ifp->if_oerrors++;
1451 } else {
1452 DPRINTF(("port disconnected\n"));
1453 ifp->if_collisions++; /* XXX */
1454 }
1455 } else
1456 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1457 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1458 }
1459
1460 static __noinline void
wi_tx_intr(struct wi_softc * sc)1461 wi_tx_intr(struct wi_softc *sc)
1462 {
1463 struct ifnet *ifp = sc->sc_ifp;
1464 int fid, cur;
1465
1466 if (sc->wi_gone)
1467 return;
1468
1469 fid = CSR_READ_2(sc, WI_ALLOC_FID);
1470 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1471
1472 cur = sc->sc_txcur;
1473 if (sc->sc_txd[cur].d_fid != fid) {
1474 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1475 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1476 return;
1477 }
1478 sc->sc_tx_timer = 0;
1479 sc->sc_txd[cur].d_len = 0;
1480 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1481 if (sc->sc_txd[cur].d_len == 0)
1482 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1483 else {
1484 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1485 0, 0)) {
1486 if_printf(ifp, "xmit failed\n");
1487 sc->sc_txd[cur].d_len = 0;
1488 } else {
1489 sc->sc_tx_timer = 5;
1490 }
1491 }
1492 }
1493
1494 static __noinline void
wi_info_intr(struct wi_softc * sc)1495 wi_info_intr(struct wi_softc *sc)
1496 {
1497 struct ifnet *ifp = sc->sc_ifp;
1498 struct ieee80211com *ic = ifp->if_l2com;
1499 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1500 int i, fid, len, off;
1501 u_int16_t ltbuf[2];
1502 u_int16_t stat;
1503 u_int32_t *ptr;
1504
1505 fid = CSR_READ_2(sc, WI_INFO_FID);
1506 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1507
1508 switch (le16toh(ltbuf[1])) {
1509 case WI_INFO_LINK_STAT:
1510 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1511 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1512 switch (le16toh(stat)) {
1513 case WI_INFO_LINK_STAT_CONNECTED:
1514 if (vap->iv_state == IEEE80211_S_RUN &&
1515 vap->iv_opmode != IEEE80211_M_IBSS)
1516 break;
1517 /* fall thru... */
1518 case WI_INFO_LINK_STAT_AP_CHG:
1519 IEEE80211_LOCK(ic);
1520 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */
1521 ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
1522 IEEE80211_UNLOCK(ic);
1523 break;
1524 case WI_INFO_LINK_STAT_AP_INR:
1525 break;
1526 case WI_INFO_LINK_STAT_DISCONNECTED:
1527 /* we dropped off the net; e.g. due to deauth/disassoc */
1528 IEEE80211_LOCK(ic);
1529 vap->iv_bss->ni_associd = 0;
1530 vap->iv_stats.is_rx_deauth++;
1531 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1532 IEEE80211_UNLOCK(ic);
1533 break;
1534 case WI_INFO_LINK_STAT_AP_OOR:
1535 /* XXX does this need to be per-vap? */
1536 ieee80211_beacon_miss(ic);
1537 break;
1538 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1539 if (vap->iv_opmode == IEEE80211_M_STA)
1540 ieee80211_new_state(vap, IEEE80211_S_SCAN,
1541 IEEE80211_SCAN_FAIL_TIMEOUT);
1542 break;
1543 }
1544 break;
1545 case WI_INFO_COUNTERS:
1546 /* some card versions have a larger stats structure */
1547 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1548 ptr = (u_int32_t *)&sc->sc_stats;
1549 off = sizeof(ltbuf);
1550 for (i = 0; i < len; i++, off += 2, ptr++) {
1551 wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1552 #ifdef WI_HERMES_STATS_WAR
1553 if (stat & 0xf000)
1554 stat = ~stat;
1555 #endif
1556 *ptr += stat;
1557 }
1558 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1559 sc->sc_stats.wi_tx_multi_retries +
1560 sc->sc_stats.wi_tx_retry_limit;
1561 break;
1562 default:
1563 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1564 le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1565 break;
1566 }
1567 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1568 }
1569
1570 static int
wi_write_multi(struct wi_softc * sc)1571 wi_write_multi(struct wi_softc *sc)
1572 {
1573 struct ifnet *ifp = sc->sc_ifp;
1574 int n;
1575 struct ifmultiaddr *ifma;
1576 struct wi_mcast mlist;
1577
1578 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1579 allmulti:
1580 memset(&mlist, 0, sizeof(mlist));
1581 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1582 sizeof(mlist));
1583 }
1584
1585 n = 0;
1586 if_maddr_rlock(ifp);
1587 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1588 if (ifma->ifma_addr->sa_family != AF_LINK)
1589 continue;
1590 if (n >= 16)
1591 goto allmulti;
1592 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1593 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1594 n++;
1595 }
1596 if_maddr_runlock(ifp);
1597 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1598 IEEE80211_ADDR_LEN * n);
1599 }
1600
1601 static void
wi_update_mcast(struct ifnet * ifp)1602 wi_update_mcast(struct ifnet *ifp)
1603 {
1604 wi_write_multi(ifp->if_softc);
1605 }
1606
1607 static void
wi_update_promisc(struct ifnet * ifp)1608 wi_update_promisc(struct ifnet *ifp)
1609 {
1610 struct wi_softc *sc = ifp->if_softc;
1611 struct ieee80211com *ic = ifp->if_l2com;
1612
1613 WI_LOCK(sc);
1614 /* XXX handle WEP special case handling? */
1615 wi_write_val(sc, WI_RID_PROMISC,
1616 (ic->ic_opmode == IEEE80211_M_MONITOR ||
1617 (ifp->if_flags & IFF_PROMISC)));
1618 WI_UNLOCK(sc);
1619 }
1620
1621 static void
wi_read_nicid(struct wi_softc * sc)1622 wi_read_nicid(struct wi_softc *sc)
1623 {
1624 struct wi_card_ident *id;
1625 char *p;
1626 int len;
1627 u_int16_t ver[4];
1628
1629 /* getting chip identity */
1630 memset(ver, 0, sizeof(ver));
1631 len = sizeof(ver);
1632 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1633
1634 sc->sc_firmware_type = WI_NOTYPE;
1635 sc->sc_nic_id = le16toh(ver[0]);
1636 for (id = wi_card_ident; id->card_name != NULL; id++) {
1637 if (sc->sc_nic_id == id->card_id) {
1638 sc->sc_nic_name = id->card_name;
1639 sc->sc_firmware_type = id->firm_type;
1640 break;
1641 }
1642 }
1643 if (sc->sc_firmware_type == WI_NOTYPE) {
1644 if (sc->sc_nic_id & 0x8000) {
1645 sc->sc_firmware_type = WI_INTERSIL;
1646 sc->sc_nic_name = "Unknown Prism chip";
1647 } else {
1648 sc->sc_firmware_type = WI_LUCENT;
1649 sc->sc_nic_name = "Unknown Lucent chip";
1650 }
1651 }
1652 if (bootverbose)
1653 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name);
1654
1655 /* get primary firmware version (Only Prism chips) */
1656 if (sc->sc_firmware_type != WI_LUCENT) {
1657 memset(ver, 0, sizeof(ver));
1658 len = sizeof(ver);
1659 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1660 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1661 le16toh(ver[3]) * 100 + le16toh(ver[1]);
1662 }
1663
1664 /* get station firmware version */
1665 memset(ver, 0, sizeof(ver));
1666 len = sizeof(ver);
1667 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1668 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1669 le16toh(ver[3]) * 100 + le16toh(ver[1]);
1670 if (sc->sc_firmware_type == WI_INTERSIL &&
1671 (sc->sc_sta_firmware_ver == 10102 ||
1672 sc->sc_sta_firmware_ver == 20102)) {
1673 char ident[12];
1674 memset(ident, 0, sizeof(ident));
1675 len = sizeof(ident);
1676 /* value should be the format like "V2.00-11" */
1677 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1678 *(p = (char *)ident) >= 'A' &&
1679 p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1680 sc->sc_firmware_type = WI_SYMBOL;
1681 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1682 (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1683 (p[6] - '0') * 10 + (p[7] - '0');
1684 }
1685 }
1686 if (bootverbose) {
1687 device_printf(sc->sc_dev, "%s Firmware: ",
1688 wi_firmware_names[sc->sc_firmware_type]);
1689 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */
1690 printf("Primary (%u.%u.%u), ",
1691 sc->sc_pri_firmware_ver / 10000,
1692 (sc->sc_pri_firmware_ver % 10000) / 100,
1693 sc->sc_pri_firmware_ver % 100);
1694 printf("Station (%u.%u.%u)\n",
1695 sc->sc_sta_firmware_ver / 10000,
1696 (sc->sc_sta_firmware_ver % 10000) / 100,
1697 sc->sc_sta_firmware_ver % 100);
1698 }
1699 }
1700
1701 static int
wi_write_ssid(struct wi_softc * sc,int rid,u_int8_t * buf,int buflen)1702 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1703 {
1704 struct wi_ssid ssid;
1705
1706 if (buflen > IEEE80211_NWID_LEN)
1707 return ENOBUFS;
1708 memset(&ssid, 0, sizeof(ssid));
1709 ssid.wi_len = htole16(buflen);
1710 memcpy(ssid.wi_ssid, buf, buflen);
1711 return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1712 }
1713
1714 static int
wi_write_txrate(struct wi_softc * sc,struct ieee80211vap * vap)1715 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap)
1716 {
1717 static const uint16_t lucent_rates[12] = {
1718 [ 0] = 3, /* auto */
1719 [ 1] = 1, /* 1Mb/s */
1720 [ 2] = 2, /* 2Mb/s */
1721 [ 5] = 4, /* 5.5Mb/s */
1722 [11] = 5 /* 11Mb/s */
1723 };
1724 static const uint16_t intersil_rates[12] = {
1725 [ 0] = 0xf, /* auto */
1726 [ 1] = 0, /* 1Mb/s */
1727 [ 2] = 1, /* 2Mb/s */
1728 [ 5] = 2, /* 5.5Mb/s */
1729 [11] = 3, /* 11Mb/s */
1730 };
1731 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ?
1732 lucent_rates : intersil_rates;
1733 struct ieee80211com *ic = vap->iv_ic;
1734 const struct ieee80211_txparam *tp;
1735
1736 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
1737 return wi_write_val(sc, WI_RID_TX_RATE,
1738 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
1739 rates[0] : rates[tp->ucastrate / 2]));
1740 }
1741
1742 static int
wi_write_wep(struct wi_softc * sc,struct ieee80211vap * vap)1743 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap)
1744 {
1745 int error = 0;
1746 int i, keylen;
1747 u_int16_t val;
1748 struct wi_key wkey[IEEE80211_WEP_NKID];
1749
1750 switch (sc->sc_firmware_type) {
1751 case WI_LUCENT:
1752 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
1753 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
1754 if (error)
1755 break;
1756 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
1757 break;
1758 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey);
1759 if (error)
1760 break;
1761 memset(wkey, 0, sizeof(wkey));
1762 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
1763 keylen = vap->iv_nw_keys[i].wk_keylen;
1764 wkey[i].wi_keylen = htole16(keylen);
1765 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key,
1766 keylen);
1767 }
1768 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
1769 wkey, sizeof(wkey));
1770 sc->sc_encryption = 0;
1771 break;
1772
1773 case WI_INTERSIL:
1774 val = HOST_ENCRYPT | HOST_DECRYPT;
1775 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
1776 /*
1777 * ONLY HWB3163 EVAL-CARD Firmware version
1778 * less than 0.8 variant2
1779 *
1780 * If promiscuous mode disable, Prism2 chip
1781 * does not work with WEP .
1782 * It is under investigation for details.
1783 * (ichiro@netbsd.org)
1784 */
1785 if (sc->sc_sta_firmware_ver < 802 ) {
1786 /* firm ver < 0.8 variant 2 */
1787 wi_write_val(sc, WI_RID_PROMISC, 1);
1788 }
1789 wi_write_val(sc, WI_RID_CNFAUTHMODE,
1790 vap->iv_bss->ni_authmode);
1791 val |= PRIVACY_INVOKED;
1792 } else {
1793 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN);
1794 }
1795 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
1796 if (error)
1797 break;
1798 sc->sc_encryption = val;
1799 if ((val & PRIVACY_INVOKED) == 0)
1800 break;
1801 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey);
1802 break;
1803 }
1804 return error;
1805 }
1806
1807 static int
wi_cmd(struct wi_softc * sc,int cmd,int val0,int val1,int val2)1808 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
1809 {
1810 int i, s = 0;
1811
1812 if (sc->wi_gone)
1813 return (ENODEV);
1814
1815 /* wait for the busy bit to clear */
1816 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */
1817 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
1818 break;
1819 DELAY(1*1000); /* 1ms */
1820 }
1821 if (i == 0) {
1822 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n",
1823 __func__, cmd);
1824 sc->wi_gone = 1;
1825 return(ETIMEDOUT);
1826 }
1827
1828 CSR_WRITE_2(sc, WI_PARAM0, val0);
1829 CSR_WRITE_2(sc, WI_PARAM1, val1);
1830 CSR_WRITE_2(sc, WI_PARAM2, val2);
1831 CSR_WRITE_2(sc, WI_COMMAND, cmd);
1832
1833 if (cmd == WI_CMD_INI) {
1834 /* XXX: should sleep here. */
1835 DELAY(100*1000); /* 100ms delay for init */
1836 }
1837 for (i = 0; i < WI_TIMEOUT; i++) {
1838 /*
1839 * Wait for 'command complete' bit to be
1840 * set in the event status register.
1841 */
1842 s = CSR_READ_2(sc, WI_EVENT_STAT);
1843 if (s & WI_EV_CMD) {
1844 /* Ack the event and read result code. */
1845 s = CSR_READ_2(sc, WI_STATUS);
1846 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
1847 if (s & WI_STAT_CMD_RESULT) {
1848 return(EIO);
1849 }
1850 break;
1851 }
1852 DELAY(WI_DELAY);
1853 }
1854
1855 if (i == WI_TIMEOUT) {
1856 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; "
1857 "event status 0x%04x\n", __func__, cmd, s);
1858 if (s == 0xffff)
1859 sc->wi_gone = 1;
1860 return(ETIMEDOUT);
1861 }
1862 return (0);
1863 }
1864
1865 static int
wi_seek_bap(struct wi_softc * sc,int id,int off)1866 wi_seek_bap(struct wi_softc *sc, int id, int off)
1867 {
1868 int i, status;
1869
1870 CSR_WRITE_2(sc, WI_SEL0, id);
1871 CSR_WRITE_2(sc, WI_OFF0, off);
1872
1873 for (i = 0; ; i++) {
1874 status = CSR_READ_2(sc, WI_OFF0);
1875 if ((status & WI_OFF_BUSY) == 0)
1876 break;
1877 if (i == WI_TIMEOUT) {
1878 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n",
1879 __func__, id, off);
1880 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
1881 if (status == 0xffff)
1882 sc->wi_gone = 1;
1883 return ETIMEDOUT;
1884 }
1885 DELAY(1);
1886 }
1887 if (status & WI_OFF_ERR) {
1888 device_printf(sc->sc_dev, "%s: error, id %x off %x\n",
1889 __func__, id, off);
1890 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
1891 return EIO;
1892 }
1893 sc->sc_bap_id = id;
1894 sc->sc_bap_off = off;
1895 return 0;
1896 }
1897
1898 static int
wi_read_bap(struct wi_softc * sc,int id,int off,void * buf,int buflen)1899 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
1900 {
1901 u_int16_t *ptr;
1902 int i, error, cnt;
1903
1904 if (buflen == 0)
1905 return 0;
1906 if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
1907 if ((error = wi_seek_bap(sc, id, off)) != 0)
1908 return error;
1909 }
1910 cnt = (buflen + 1) / 2;
1911 ptr = (u_int16_t *)buf;
1912 for (i = 0; i < cnt; i++)
1913 *ptr++ = CSR_READ_2(sc, WI_DATA0);
1914 sc->sc_bap_off += cnt * 2;
1915 return 0;
1916 }
1917
1918 static int
wi_write_bap(struct wi_softc * sc,int id,int off,void * buf,int buflen)1919 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
1920 {
1921 u_int16_t *ptr;
1922 int i, error, cnt;
1923
1924 if (buflen == 0)
1925 return 0;
1926
1927 if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
1928 if ((error = wi_seek_bap(sc, id, off)) != 0)
1929 return error;
1930 }
1931 cnt = (buflen + 1) / 2;
1932 ptr = (u_int16_t *)buf;
1933 for (i = 0; i < cnt; i++)
1934 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
1935 sc->sc_bap_off += cnt * 2;
1936
1937 return 0;
1938 }
1939
1940 static int
wi_mwrite_bap(struct wi_softc * sc,int id,int off,struct mbuf * m0,int totlen)1941 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
1942 {
1943 int error, len;
1944 struct mbuf *m;
1945
1946 for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
1947 if (m->m_len == 0)
1948 continue;
1949
1950 len = min(m->m_len, totlen);
1951
1952 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
1953 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
1954 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
1955 totlen);
1956 }
1957
1958 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
1959 return error;
1960
1961 off += m->m_len;
1962 totlen -= len;
1963 }
1964 return 0;
1965 }
1966
1967 static int
wi_alloc_fid(struct wi_softc * sc,int len,int * idp)1968 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
1969 {
1970 int i;
1971
1972 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
1973 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n",
1974 __func__, len);
1975 return ENOMEM;
1976 }
1977
1978 for (i = 0; i < WI_TIMEOUT; i++) {
1979 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
1980 break;
1981 DELAY(1);
1982 }
1983 if (i == WI_TIMEOUT) {
1984 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__);
1985 return ETIMEDOUT;
1986 }
1987 *idp = CSR_READ_2(sc, WI_ALLOC_FID);
1988 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1989 return 0;
1990 }
1991
1992 static int
wi_read_rid(struct wi_softc * sc,int rid,void * buf,int * buflenp)1993 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
1994 {
1995 int error, len;
1996 u_int16_t ltbuf[2];
1997
1998 /* Tell the NIC to enter record read mode. */
1999 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2000 if (error)
2001 return error;
2002
2003 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2004 if (error)
2005 return error;
2006
2007 if (le16toh(ltbuf[1]) != rid) {
2008 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
2009 rid, le16toh(ltbuf[1]));
2010 return EIO;
2011 }
2012 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */
2013 if (*buflenp < len) {
2014 device_printf(sc->sc_dev, "record buffer is too small, "
2015 "rid=%x, size=%d, len=%d\n",
2016 rid, *buflenp, len);
2017 return ENOSPC;
2018 }
2019 *buflenp = len;
2020 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2021 }
2022
2023 static int
wi_write_rid(struct wi_softc * sc,int rid,void * buf,int buflen)2024 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2025 {
2026 int error;
2027 u_int16_t ltbuf[2];
2028
2029 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */
2030 ltbuf[1] = htole16(rid);
2031
2032 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2033 if (error) {
2034 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n",
2035 __func__, rid);
2036 return error;
2037 }
2038 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2039 if (error) {
2040 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n",
2041 __func__, rid);
2042 return error;
2043 }
2044
2045 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2046 }
2047
2048 static int
wi_write_appie(struct wi_softc * sc,int rid,const struct ieee80211_appie * ie)2049 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie)
2050 {
2051 /* NB: 42 bytes is probably ok to have on the stack */
2052 char buf[sizeof(uint16_t) + 40];
2053
2054 if (ie->ie_len > 40)
2055 return EINVAL;
2056 /* NB: firmware requires 16-bit ie length before ie data */
2057 *(uint16_t *) buf = htole16(ie->ie_len);
2058 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len);
2059 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t));
2060 }
2061
2062 int
wi_alloc(device_t dev,int rid)2063 wi_alloc(device_t dev, int rid)
2064 {
2065 struct wi_softc *sc = device_get_softc(dev);
2066
2067 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2068 sc->iobase_rid = rid;
2069 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2070 &sc->iobase_rid, 0, ~0, (1 << 6),
2071 rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2072 if (sc->iobase == NULL) {
2073 device_printf(dev, "No I/O space?!\n");
2074 return ENXIO;
2075 }
2076
2077 sc->wi_io_addr = rman_get_start(sc->iobase);
2078 sc->wi_btag = rman_get_bustag(sc->iobase);
2079 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2080 } else {
2081 sc->mem_rid = rid;
2082 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2083 &sc->mem_rid, RF_ACTIVE);
2084 if (sc->mem == NULL) {
2085 device_printf(dev, "No Mem space on prism2.5?\n");
2086 return ENXIO;
2087 }
2088
2089 sc->wi_btag = rman_get_bustag(sc->mem);
2090 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2091 }
2092
2093 sc->irq_rid = 0;
2094 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2095 RF_ACTIVE |
2096 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2097 if (sc->irq == NULL) {
2098 wi_free(dev);
2099 device_printf(dev, "No irq?!\n");
2100 return ENXIO;
2101 }
2102
2103 sc->sc_dev = dev;
2104 sc->sc_unit = device_get_unit(dev);
2105 return 0;
2106 }
2107
2108 void
wi_free(device_t dev)2109 wi_free(device_t dev)
2110 {
2111 struct wi_softc *sc = device_get_softc(dev);
2112
2113 if (sc->iobase != NULL) {
2114 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2115 sc->iobase = NULL;
2116 }
2117 if (sc->irq != NULL) {
2118 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2119 sc->irq = NULL;
2120 }
2121 if (sc->mem != NULL) {
2122 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2123 sc->mem = NULL;
2124 }
2125 }
2126