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("$FreeBSD$");
64
65 #include "opt_wlan.h"
66
67 #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */
68
69 #include <sys/param.h>
70 #include <sys/systm.h>
71 #include <sys/endian.h>
72 #include <sys/sockio.h>
73 #include <sys/mbuf.h>
74 #include <sys/priv.h>
75 #include <sys/proc.h>
76 #include <sys/kernel.h>
77 #include <sys/socket.h>
78 #include <sys/module.h>
79 #include <sys/bus.h>
80 #include <sys/random.h>
81 #include <sys/syslog.h>
82 #include <sys/sysctl.h>
83
84 #include <machine/bus.h>
85 #include <machine/resource.h>
86 #include <machine/atomic.h>
87 #include <sys/rman.h>
88
89 #include <net/if.h>
90 #include <net/if_var.h>
91 #include <net/if_arp.h>
92 #include <net/ethernet.h>
93 #include <net/if_dl.h>
94 #include <net/if_llc.h>
95 #include <net/if_media.h>
96 #include <net/if_types.h>
97
98 #include <net80211/ieee80211_var.h>
99 #include <net80211/ieee80211_ioctl.h>
100 #include <net80211/ieee80211_radiotap.h>
101
102 #include <netinet/in.h>
103 #include <netinet/in_systm.h>
104 #include <netinet/in_var.h>
105 #include <netinet/ip.h>
106 #include <netinet/if_ether.h>
107
108 #include <net/bpf.h>
109
110 #include <dev/wi/if_wavelan_ieee.h>
111 #include <dev/wi/if_wireg.h>
112 #include <dev/wi/if_wivar.h>
113
114 static struct ieee80211vap *wi_vap_create(struct ieee80211com *,
115 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
116 const uint8_t [IEEE80211_ADDR_LEN],
117 const uint8_t [IEEE80211_ADDR_LEN]);
118 static void wi_vap_delete(struct ieee80211vap *vap);
119 static int wi_transmit(struct ieee80211com *, struct mbuf *);
120 static void wi_start(struct wi_softc *);
121 static int wi_start_tx(struct wi_softc *, struct wi_frame *, struct mbuf *);
122 static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *,
123 const struct ieee80211_bpf_params *);
124 static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int);
125 static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state,
126 int);
127 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
128 int subtype, const struct ieee80211_rx_stats *rxs,
129 int rssi, int nf);
130 static int wi_reset(struct wi_softc *);
131 static void wi_watchdog(void *);
132 static void wi_parent(struct ieee80211com *);
133 static void wi_media_status(struct ifnet *, struct ifmediareq *);
134 static void wi_rx_intr(struct wi_softc *);
135 static void wi_tx_intr(struct wi_softc *);
136 static void wi_tx_ex_intr(struct wi_softc *);
137
138 static void wi_info_intr(struct wi_softc *);
139
140 static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *);
141 static int wi_write_wep(struct wi_softc *, struct ieee80211vap *);
142 static int wi_write_multi(struct wi_softc *);
143 static void wi_update_mcast(struct ieee80211com *);
144 static void wi_update_promisc(struct ieee80211com *);
145 static int wi_alloc_fid(struct wi_softc *, int, int *);
146 static void wi_read_nicid(struct wi_softc *);
147 static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
148
149 static int wi_cmd(struct wi_softc *, int, int, int, int);
150 static int wi_seek_bap(struct wi_softc *, int, int);
151 static int wi_read_bap(struct wi_softc *, int, int, void *, int);
152 static int wi_write_bap(struct wi_softc *, int, int, const void *, int);
153 static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
154 static int wi_read_rid(struct wi_softc *, int, void *, int *);
155 static int wi_write_rid(struct wi_softc *, int, const void *, int);
156 static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *);
157
158 static void wi_scan_start(struct ieee80211com *);
159 static void wi_scan_end(struct ieee80211com *);
160 static void wi_set_channel(struct ieee80211com *);
161
162 static __inline int
wi_write_val(struct wi_softc * sc,int rid,u_int16_t val)163 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
164 {
165
166 val = htole16(val);
167 return wi_write_rid(sc, rid, &val, sizeof(val));
168 }
169
170 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
171 "Wireless driver parameters");
172
173 static struct timeval lasttxerror; /* time of last tx error msg */
174 static int curtxeps; /* current tx error msgs/sec */
175 static int wi_txerate = 0; /* tx error rate: max msgs/sec */
176 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
177 0, "max tx error msgs/sec; 0 to disable msgs");
178
179 #define WI_DEBUG
180 #ifdef WI_DEBUG
181 static int wi_debug = 0;
182 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
183 0, "control debugging printfs");
184 #define DPRINTF(X) if (wi_debug) printf X
185 #else
186 #define DPRINTF(X)
187 #endif
188
189 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
190
191 struct wi_card_ident wi_card_ident[] = {
192 /* CARD_ID CARD_NAME FIRM_TYPE */
193 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT },
194 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT },
195 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT },
196 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL },
197 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL },
198 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL },
199 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL },
200 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL },
201 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL },
202 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL },
203 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL },
204 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL },
205 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
206 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
207 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
208 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
209 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
210 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
211 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
212 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
213 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
214 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
215 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
216 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
217 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
218 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
219 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
220 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
221 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
222 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
223 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
224 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
225 { 0, NULL, 0 },
226 };
227
228 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" };
229
230 devclass_t wi_devclass;
231
232 int
wi_attach(device_t dev)233 wi_attach(device_t dev)
234 {
235 struct wi_softc *sc = device_get_softc(dev);
236 struct ieee80211com *ic = &sc->sc_ic;
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
248 sc->sc_firmware_type = WI_NOTYPE;
249 sc->wi_cmd_count = 500;
250 /* Reset the NIC. */
251 if (wi_reset(sc) != 0) {
252 wi_free(dev);
253 return ENXIO; /* XXX */
254 }
255
256 /* Read NIC identification */
257 wi_read_nicid(sc);
258 switch (sc->sc_firmware_type) {
259 case WI_LUCENT:
260 if (sc->sc_sta_firmware_ver < 60006)
261 goto reject;
262 break;
263 case WI_INTERSIL:
264 if (sc->sc_sta_firmware_ver < 800)
265 goto reject;
266 break;
267 default:
268 reject:
269 device_printf(dev, "Sorry, this card is not supported "
270 "(type %d, firmware ver %d)\n",
271 sc->sc_firmware_type, sc->sc_sta_firmware_ver);
272 wi_free(dev);
273 return EOPNOTSUPP;
274 }
275
276 /* Export info about the device via sysctl */
277 sctx = device_get_sysctl_ctx(dev);
278 soid = device_get_sysctl_tree(dev);
279 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
280 "firmware_type", CTLFLAG_RD,
281 wi_firmware_names[sc->sc_firmware_type], 0,
282 "Firmware type string");
283 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version",
284 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0,
285 "Station Firmware version");
286 if (sc->sc_firmware_type == WI_INTERSIL)
287 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
288 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0,
289 "Primary Firmware version");
290 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id",
291 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id");
292 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name",
293 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name");
294
295 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
296 MTX_DEF | MTX_RECURSE);
297 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
298 mbufq_init(&sc->sc_snd, ifqmaxlen);
299
300 /*
301 * Read the station address.
302 * And do it twice. I've seen PRISM-based cards that return
303 * an error when trying to read it the first time, which causes
304 * the probe to fail.
305 */
306 buflen = IEEE80211_ADDR_LEN;
307 error = wi_read_rid(sc, WI_RID_MAC_NODE, &ic->ic_macaddr, &buflen);
308 if (error != 0) {
309 buflen = IEEE80211_ADDR_LEN;
310 error = wi_read_rid(sc, WI_RID_MAC_NODE, &ic->ic_macaddr,
311 &buflen);
312 }
313 if (error || IEEE80211_ADDR_EQ(&ic->ic_macaddr, empty_macaddr)) {
314 if (error != 0)
315 device_printf(dev, "mac read failed %d\n", error);
316 else {
317 device_printf(dev, "mac read failed (all zeros)\n");
318 error = ENXIO;
319 }
320 wi_free(dev);
321 return (error);
322 }
323
324 ic->ic_softc = sc;
325 ic->ic_name = device_get_nameunit(dev);
326 ic->ic_phytype = IEEE80211_T_DS;
327 ic->ic_opmode = IEEE80211_M_STA;
328 ic->ic_caps = IEEE80211_C_STA
329 | IEEE80211_C_PMGT
330 | IEEE80211_C_MONITOR
331 ;
332
333 /*
334 * Query the card for available channels and setup the
335 * channel table. We assume these are all 11b channels.
336 */
337 buflen = sizeof(val);
338 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
339 val = htole16(0x1fff); /* assume 1-11 */
340 KASSERT(val != 0, ("wi_attach: no available channels listed!"));
341
342 val <<= 1; /* shift for base 1 indices */
343 for (i = 1; i < 16; i++) {
344 struct ieee80211_channel *c;
345
346 if (!isset((u_int8_t*)&val, i))
347 continue;
348 c = &ic->ic_channels[ic->ic_nchans++];
349 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
350 c->ic_flags = IEEE80211_CHAN_B;
351 c->ic_ieee = i;
352 /* XXX txpowers? */
353 }
354
355 /*
356 * Set flags based on firmware version.
357 */
358 switch (sc->sc_firmware_type) {
359 case WI_LUCENT:
360 sc->sc_ntxbuf = 1;
361 ic->ic_caps |= IEEE80211_C_IBSS;
362
363 sc->sc_ibss_port = WI_PORTTYPE_BSS;
364 sc->sc_monitor_port = WI_PORTTYPE_ADHOC;
365 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
366 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
367 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
368 break;
369 case WI_INTERSIL:
370 sc->sc_ntxbuf = WI_NTXBUF;
371 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR
372 | WI_FLAGS_HAS_ROAMING;
373 /*
374 * Old firmware are slow, so give peace a chance.
375 */
376 if (sc->sc_sta_firmware_ver < 10000)
377 sc->wi_cmd_count = 5000;
378 if (sc->sc_sta_firmware_ver > 10101)
379 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
380 ic->ic_caps |= IEEE80211_C_IBSS;
381 /*
382 * version 0.8.3 and newer are the only ones that are known
383 * to currently work. Earlier versions can be made to work,
384 * at least according to the Linux driver but we require
385 * monitor mode so this is irrelevant.
386 */
387 ic->ic_caps |= IEEE80211_C_HOSTAP;
388 if (sc->sc_sta_firmware_ver >= 10603)
389 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY;
390 if (sc->sc_sta_firmware_ver >= 10700) {
391 /*
392 * 1.7.0+ have the necessary support for sta mode WPA.
393 */
394 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT;
395 ic->ic_caps |= IEEE80211_C_WPA;
396 }
397
398 sc->sc_ibss_port = WI_PORTTYPE_IBSS;
399 sc->sc_monitor_port = WI_PORTTYPE_APSILENT;
400 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
401 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
402 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
403 break;
404 }
405
406 /*
407 * Find out if we support WEP on this card.
408 */
409 buflen = sizeof(val);
410 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
411 val != htole16(0))
412 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
413
414 /* Find supported rates. */
415 buflen = sizeof(ratebuf);
416 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
417 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
418 nrates = le16toh(*(u_int16_t *)ratebuf);
419 if (nrates > IEEE80211_RATE_MAXSIZE)
420 nrates = IEEE80211_RATE_MAXSIZE;
421 rs->rs_nrates = 0;
422 for (i = 0; i < nrates; i++)
423 if (ratebuf[2+i])
424 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
425 } else {
426 /* XXX fallback on error? */
427 }
428
429 buflen = sizeof(val);
430 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
431 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
432 sc->sc_dbm_offset = le16toh(val);
433 }
434
435 sc->sc_portnum = WI_DEFAULT_PORT;
436
437 ieee80211_ifattach(ic);
438 ic->ic_raw_xmit = wi_raw_xmit;
439 ic->ic_scan_start = wi_scan_start;
440 ic->ic_scan_end = wi_scan_end;
441 ic->ic_set_channel = wi_set_channel;
442 ic->ic_vap_create = wi_vap_create;
443 ic->ic_vap_delete = wi_vap_delete;
444 ic->ic_update_mcast = wi_update_mcast;
445 ic->ic_update_promisc = wi_update_promisc;
446 ic->ic_transmit = wi_transmit;
447 ic->ic_parent = wi_parent;
448
449 ieee80211_radiotap_attach(ic,
450 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
451 WI_TX_RADIOTAP_PRESENT,
452 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
453 WI_RX_RADIOTAP_PRESENT);
454
455 if (bootverbose)
456 ieee80211_announce(ic);
457
458 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
459 NULL, wi_intr, sc, &sc->wi_intrhand);
460 if (error) {
461 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
462 ieee80211_ifdetach(ic);
463 wi_free(dev);
464 return error;
465 }
466
467 return (0);
468 }
469
470 int
wi_detach(device_t dev)471 wi_detach(device_t dev)
472 {
473 struct wi_softc *sc = device_get_softc(dev);
474 struct ieee80211com *ic = &sc->sc_ic;
475
476 WI_LOCK(sc);
477
478 /* check if device was removed */
479 sc->wi_gone |= !bus_child_present(dev);
480
481 wi_stop(sc, 0);
482 WI_UNLOCK(sc);
483 ieee80211_ifdetach(ic);
484
485 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
486 wi_free(dev);
487 mbufq_drain(&sc->sc_snd);
488 mtx_destroy(&sc->sc_mtx);
489 return (0);
490 }
491
492 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])493 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
494 enum ieee80211_opmode opmode, int flags,
495 const uint8_t bssid[IEEE80211_ADDR_LEN],
496 const uint8_t mac[IEEE80211_ADDR_LEN])
497 {
498 struct wi_softc *sc = ic->ic_softc;
499 struct wi_vap *wvp;
500 struct ieee80211vap *vap;
501
502 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
503 return NULL;
504 wvp = malloc(sizeof(struct wi_vap), M_80211_VAP, M_WAITOK | M_ZERO);
505
506 vap = &wvp->wv_vap;
507 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
508
509 vap->iv_max_aid = WI_MAX_AID;
510
511 switch (opmode) {
512 case IEEE80211_M_STA:
513 sc->sc_porttype = WI_PORTTYPE_BSS;
514 wvp->wv_newstate = vap->iv_newstate;
515 vap->iv_newstate = wi_newstate_sta;
516 /* need to filter mgt frames to avoid confusing state machine */
517 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
518 vap->iv_recv_mgmt = wi_recv_mgmt;
519 break;
520 case IEEE80211_M_IBSS:
521 sc->sc_porttype = sc->sc_ibss_port;
522 wvp->wv_newstate = vap->iv_newstate;
523 vap->iv_newstate = wi_newstate_sta;
524 break;
525 case IEEE80211_M_AHDEMO:
526 sc->sc_porttype = WI_PORTTYPE_ADHOC;
527 break;
528 case IEEE80211_M_HOSTAP:
529 sc->sc_porttype = WI_PORTTYPE_HOSTAP;
530 wvp->wv_newstate = vap->iv_newstate;
531 vap->iv_newstate = wi_newstate_hostap;
532 break;
533 case IEEE80211_M_MONITOR:
534 sc->sc_porttype = sc->sc_monitor_port;
535 break;
536 default:
537 break;
538 }
539
540 /* complete setup */
541 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status, mac);
542 ic->ic_opmode = opmode;
543 return vap;
544 }
545
546 static void
wi_vap_delete(struct ieee80211vap * vap)547 wi_vap_delete(struct ieee80211vap *vap)
548 {
549 struct wi_vap *wvp = WI_VAP(vap);
550
551 ieee80211_vap_detach(vap);
552 free(wvp, M_80211_VAP);
553 }
554
555 int
wi_shutdown(device_t dev)556 wi_shutdown(device_t dev)
557 {
558 struct wi_softc *sc = device_get_softc(dev);
559
560 WI_LOCK(sc);
561 wi_stop(sc, 1);
562 WI_UNLOCK(sc);
563 return (0);
564 }
565
566 void
wi_intr(void * arg)567 wi_intr(void *arg)
568 {
569 struct wi_softc *sc = arg;
570 u_int16_t status;
571
572 WI_LOCK(sc);
573
574 if (sc->wi_gone || !sc->sc_enabled ||
575 (sc->sc_flags & WI_FLAGS_RUNNING) == 0) {
576 CSR_WRITE_2(sc, WI_INT_EN, 0);
577 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
578 WI_UNLOCK(sc);
579 return;
580 }
581
582 /* Disable interrupts. */
583 CSR_WRITE_2(sc, WI_INT_EN, 0);
584
585 status = CSR_READ_2(sc, WI_EVENT_STAT);
586 if (status & WI_EV_RX)
587 wi_rx_intr(sc);
588 if (status & WI_EV_ALLOC)
589 wi_tx_intr(sc);
590 if (status & WI_EV_TX_EXC)
591 wi_tx_ex_intr(sc);
592 if (status & WI_EV_INFO)
593 wi_info_intr(sc);
594 if (mbufq_first(&sc->sc_snd) != NULL)
595 wi_start(sc);
596
597 /* Re-enable interrupts. */
598 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
599
600 WI_UNLOCK(sc);
601
602 return;
603 }
604
605 static void
wi_enable(struct wi_softc * sc)606 wi_enable(struct wi_softc *sc)
607 {
608 /* Enable interrupts */
609 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
610
611 /* enable port */
612 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
613 sc->sc_enabled = 1;
614 }
615
616 static int
wi_setup_locked(struct wi_softc * sc,int porttype,int mode,const uint8_t mac[IEEE80211_ADDR_LEN])617 wi_setup_locked(struct wi_softc *sc, int porttype, int mode,
618 const uint8_t mac[IEEE80211_ADDR_LEN])
619 {
620 int i;
621
622 wi_reset(sc);
623
624 wi_write_val(sc, WI_RID_PORTTYPE, porttype);
625 wi_write_val(sc, WI_RID_CREATE_IBSS, mode);
626 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304);
627 /* XXX IEEE80211_BPF_NOACK wants 0 */
628 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2);
629 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
630 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */
631
632 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN);
633
634 /* Allocate fids for the card */
635 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
636 for (i = 0; i < sc->sc_ntxbuf; i++) {
637 int error = wi_alloc_fid(sc, sc->sc_buflen,
638 &sc->sc_txd[i].d_fid);
639 if (error) {
640 device_printf(sc->sc_dev,
641 "tx buffer allocation failed (error %u)\n",
642 error);
643 return error;
644 }
645 sc->sc_txd[i].d_len = 0;
646 }
647 sc->sc_txcur = sc->sc_txnext = 0;
648
649 return 0;
650 }
651
652 void
wi_init(struct wi_softc * sc)653 wi_init(struct wi_softc *sc)
654 {
655 int wasenabled;
656
657 WI_LOCK_ASSERT(sc);
658
659 wasenabled = sc->sc_enabled;
660 if (wasenabled)
661 wi_stop(sc, 1);
662
663 if (wi_setup_locked(sc, sc->sc_porttype, 3,
664 sc->sc_ic.ic_macaddr) != 0) {
665 device_printf(sc->sc_dev, "interface not running\n");
666 wi_stop(sc, 1);
667 return;
668 }
669
670 sc->sc_flags |= WI_FLAGS_RUNNING;
671
672 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
673
674 wi_enable(sc); /* Enable desired port */
675 }
676
677 void
wi_stop(struct wi_softc * sc,int disable)678 wi_stop(struct wi_softc *sc, int disable)
679 {
680
681 WI_LOCK_ASSERT(sc);
682
683 if (sc->sc_enabled && !sc->wi_gone) {
684 CSR_WRITE_2(sc, WI_INT_EN, 0);
685 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
686 if (disable)
687 sc->sc_enabled = 0;
688 } else if (sc->wi_gone && disable) /* gone --> not enabled */
689 sc->sc_enabled = 0;
690
691 callout_stop(&sc->sc_watchdog);
692 sc->sc_tx_timer = 0;
693 sc->sc_false_syns = 0;
694
695 sc->sc_flags &= ~WI_FLAGS_RUNNING;
696 }
697
698 static void
wi_set_channel(struct ieee80211com * ic)699 wi_set_channel(struct ieee80211com *ic)
700 {
701 struct wi_softc *sc = ic->ic_softc;
702
703 DPRINTF(("%s: channel %d, %sscanning\n", __func__,
704 ieee80211_chan2ieee(ic, ic->ic_curchan),
705 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!"));
706
707 WI_LOCK(sc);
708 wi_write_val(sc, WI_RID_OWN_CHNL,
709 ieee80211_chan2ieee(ic, ic->ic_curchan));
710 WI_UNLOCK(sc);
711 }
712
713 static void
wi_scan_start(struct ieee80211com * ic)714 wi_scan_start(struct ieee80211com *ic)
715 {
716 struct wi_softc *sc = ic->ic_softc;
717 struct ieee80211_scan_state *ss = ic->ic_scan;
718
719 DPRINTF(("%s\n", __func__));
720
721 WI_LOCK(sc);
722 /*
723 * Switch device to monitor mode.
724 */
725 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port);
726 if (sc->sc_firmware_type == WI_INTERSIL) {
727 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
728 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
729 }
730 /* force full dwell time to compensate for firmware overhead */
731 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400);
732 WI_UNLOCK(sc);
733
734 }
735
736 static void
wi_scan_end(struct ieee80211com * ic)737 wi_scan_end(struct ieee80211com *ic)
738 {
739 struct wi_softc *sc = ic->ic_softc;
740
741 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype));
742
743 WI_LOCK(sc);
744 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype);
745 if (sc->sc_firmware_type == WI_INTERSIL) {
746 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
747 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
748 }
749 WI_UNLOCK(sc);
750 }
751
752 static void
wi_recv_mgmt(struct ieee80211_node * ni,struct mbuf * m,int subtype,const struct ieee80211_rx_stats * rxs,int rssi,int nf)753 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
754 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf)
755 {
756 struct ieee80211vap *vap = ni->ni_vap;
757
758 switch (subtype) {
759 case IEEE80211_FC0_SUBTYPE_AUTH:
760 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
761 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
762 /* NB: filter frames that trigger state changes */
763 return;
764 }
765 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
766 }
767
768 static int
wi_newstate_sta(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)769 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
770 {
771 struct ieee80211com *ic = vap->iv_ic;
772 struct ieee80211_node *bss;
773 struct wi_softc *sc = ic->ic_softc;
774
775 DPRINTF(("%s: %s -> %s\n", __func__,
776 ieee80211_state_name[vap->iv_state],
777 ieee80211_state_name[nstate]));
778
779 if (nstate == IEEE80211_S_AUTH) {
780 WI_LOCK(sc);
781 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr);
782
783 if (vap->iv_flags & IEEE80211_F_PMGTON) {
784 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
785 wi_write_val(sc, WI_RID_PM_ENABLED, 1);
786 }
787 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
788 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
789 wi_write_val(sc, WI_RID_FRAG_THRESH,
790 vap->iv_fragthreshold);
791 wi_write_txrate(sc, vap);
792
793 bss = vap->iv_bss;
794 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen);
795 wi_write_val(sc, WI_RID_OWN_CHNL,
796 ieee80211_chan2ieee(ic, bss->ni_chan));
797
798 /* Configure WEP. */
799 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
800 wi_write_wep(sc, vap);
801 else
802 sc->sc_encryption = 0;
803
804 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
805 (vap->iv_flags & IEEE80211_F_WPA)) {
806 wi_write_val(sc, WI_RID_WPA_HANDLING, 1);
807 if (vap->iv_appie_wpa != NULL)
808 wi_write_appie(sc, WI_RID_WPA_DATA,
809 vap->iv_appie_wpa);
810 }
811
812 wi_enable(sc); /* enable port */
813
814 /* Lucent firmware does not support the JOIN RID. */
815 if (sc->sc_firmware_type == WI_INTERSIL) {
816 struct wi_joinreq join;
817
818 memset(&join, 0, sizeof(join));
819 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid);
820 join.wi_chan = htole16(
821 ieee80211_chan2ieee(ic, bss->ni_chan));
822 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
823 }
824 WI_UNLOCK(sc);
825
826 /*
827 * NB: don't go through 802.11 layer, it'll send auth frame;
828 * instead we drive the state machine from the link status
829 * notification we get on association.
830 */
831 vap->iv_state = nstate;
832 return (0);
833 }
834 return WI_VAP(vap)->wv_newstate(vap, nstate, arg);
835 }
836
837 static int
wi_newstate_hostap(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)838 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
839 {
840 struct ieee80211com *ic = vap->iv_ic;
841 struct ieee80211_node *bss;
842 struct wi_softc *sc = ic->ic_softc;
843 int error;
844
845 DPRINTF(("%s: %s -> %s\n", __func__,
846 ieee80211_state_name[vap->iv_state],
847 ieee80211_state_name[nstate]));
848
849 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg);
850 if (error == 0 && nstate == IEEE80211_S_RUN) {
851 WI_LOCK(sc);
852 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr);
853
854 bss = vap->iv_bss;
855 wi_write_ssid(sc, WI_RID_OWN_SSID,
856 bss->ni_essid, bss->ni_esslen);
857 wi_write_val(sc, WI_RID_OWN_CHNL,
858 ieee80211_chan2ieee(ic, bss->ni_chan));
859 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3);
860 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf);
861 wi_write_txrate(sc, vap);
862
863 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval);
864 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period);
865
866 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
867 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
868 wi_write_val(sc, WI_RID_FRAG_THRESH,
869 vap->iv_fragthreshold);
870
871 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) &&
872 (vap->iv_flags & IEEE80211_F_HIDESSID)) {
873 /*
874 * bit 0 means hide SSID in beacons,
875 * bit 1 means don't respond to bcast probe req
876 */
877 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3);
878 }
879
880 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
881 (vap->iv_flags & IEEE80211_F_WPA) &&
882 vap->iv_appie_wpa != NULL)
883 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa);
884
885 wi_write_val(sc, WI_RID_PROMISC, 0);
886
887 /* Configure WEP. */
888 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
889 wi_write_wep(sc, vap);
890 else
891 sc->sc_encryption = 0;
892
893 wi_enable(sc); /* enable port */
894 WI_UNLOCK(sc);
895 }
896 return error;
897 }
898
899 static int
wi_transmit(struct ieee80211com * ic,struct mbuf * m)900 wi_transmit(struct ieee80211com *ic, struct mbuf *m)
901 {
902 struct wi_softc *sc = ic->ic_softc;
903 int error;
904
905 WI_LOCK(sc);
906 if ((sc->sc_flags & WI_FLAGS_RUNNING) == 0) {
907 WI_UNLOCK(sc);
908 return (ENXIO);
909 }
910 error = mbufq_enqueue(&sc->sc_snd, m);
911 if (error) {
912 WI_UNLOCK(sc);
913 return (error);
914 }
915 wi_start(sc);
916 WI_UNLOCK(sc);
917 return (0);
918 }
919
920 static void
wi_start(struct wi_softc * sc)921 wi_start(struct wi_softc *sc)
922 {
923 struct ieee80211_node *ni;
924 struct ieee80211_frame *wh;
925 struct mbuf *m0;
926 struct ieee80211_key *k;
927 struct wi_frame frmhdr;
928 const struct llc *llc;
929 int cur;
930
931 WI_LOCK_ASSERT(sc);
932
933 if (sc->wi_gone)
934 return;
935
936 memset(&frmhdr, 0, sizeof(frmhdr));
937 cur = sc->sc_txnext;
938 while (sc->sc_txd[cur].d_len == 0 &&
939 (m0 = mbufq_dequeue(&sc->sc_snd)) != NULL) {
940 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
941
942 /* reconstruct 802.3 header */
943 wh = mtod(m0, struct ieee80211_frame *);
944 switch (wh->i_fc[1]) {
945 case IEEE80211_FC1_DIR_TODS:
946 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
947 wh->i_addr2);
948 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
949 wh->i_addr3);
950 break;
951 case IEEE80211_FC1_DIR_NODS:
952 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
953 wh->i_addr2);
954 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
955 wh->i_addr1);
956 break;
957 case IEEE80211_FC1_DIR_FROMDS:
958 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
959 wh->i_addr3);
960 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
961 wh->i_addr1);
962 break;
963 }
964 llc = (const struct llc *)(
965 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh));
966 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type;
967 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
968 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
969 k = ieee80211_crypto_encap(ni, m0);
970 if (k == NULL) {
971 ieee80211_free_node(ni);
972 m_freem(m0);
973 continue;
974 }
975 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
976 }
977
978 if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
979 sc->sc_tx_th.wt_rate = ni->ni_txrate;
980 ieee80211_radiotap_tx(ni->ni_vap, m0);
981 }
982
983 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
984 (caddr_t)&frmhdr.wi_whdr);
985 m_adj(m0, sizeof(struct ieee80211_frame));
986 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
987 ieee80211_free_node(ni);
988 if (wi_start_tx(sc, &frmhdr, m0))
989 continue;
990
991 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
992 }
993 }
994
995 static int
wi_start_tx(struct wi_softc * sc,struct wi_frame * frmhdr,struct mbuf * m0)996 wi_start_tx(struct wi_softc *sc, struct wi_frame *frmhdr, struct mbuf *m0)
997 {
998 int cur = sc->sc_txnext;
999 int fid, off, error;
1000
1001 fid = sc->sc_txd[cur].d_fid;
1002 off = sizeof(*frmhdr);
1003 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0
1004 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
1005 m_freem(m0);
1006 if (error) {
1007 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1008 return -1;
1009 }
1010 sc->sc_txd[cur].d_len = off;
1011 if (sc->sc_txcur == cur) {
1012 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
1013 device_printf(sc->sc_dev, "xmit failed\n");
1014 sc->sc_txd[cur].d_len = 0;
1015 return -1;
1016 }
1017 sc->sc_tx_timer = 5;
1018 }
1019 return 0;
1020 }
1021
1022 static int
wi_raw_xmit(struct ieee80211_node * ni,struct mbuf * m0,const struct ieee80211_bpf_params * params)1023 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0,
1024 const struct ieee80211_bpf_params *params)
1025 {
1026 struct ieee80211com *ic = ni->ni_ic;
1027 struct ieee80211vap *vap = ni->ni_vap;
1028 struct wi_softc *sc = ic->ic_softc;
1029 struct ieee80211_key *k;
1030 struct ieee80211_frame *wh;
1031 struct wi_frame frmhdr;
1032 int cur;
1033 int rc = 0;
1034
1035 WI_LOCK(sc);
1036
1037 if (sc->wi_gone) {
1038 rc = ENETDOWN;
1039 goto out;
1040 }
1041 memset(&frmhdr, 0, sizeof(frmhdr));
1042 cur = sc->sc_txnext;
1043 if (sc->sc_txd[cur].d_len != 0) {
1044 rc = ENOBUFS;
1045 goto out;
1046 }
1047 m0->m_pkthdr.rcvif = NULL;
1048
1049 m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
1050 (caddr_t)&frmhdr.wi_ehdr);
1051 frmhdr.wi_ehdr.ether_type = 0;
1052 wh = mtod(m0, struct ieee80211_frame *);
1053
1054 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
1055 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK))
1056 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY);
1057 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1058 (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) {
1059 k = ieee80211_crypto_encap(ni, m0);
1060 if (k == NULL) {
1061 rc = ENOMEM;
1062 goto out;
1063 }
1064 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
1065 }
1066 if (ieee80211_radiotap_active_vap(vap)) {
1067 sc->sc_tx_th.wt_rate = ni->ni_txrate;
1068 ieee80211_radiotap_tx(vap, m0);
1069 }
1070 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
1071 (caddr_t)&frmhdr.wi_whdr);
1072 m_adj(m0, sizeof(struct ieee80211_frame));
1073 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
1074 if (wi_start_tx(sc, &frmhdr, m0) < 0) {
1075 m0 = NULL;
1076 rc = EIO;
1077 goto out;
1078 }
1079 m0 = NULL;
1080 ieee80211_free_node(ni);
1081
1082 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
1083 out:
1084 WI_UNLOCK(sc);
1085
1086 if (m0 != NULL)
1087 m_freem(m0);
1088 return rc;
1089 }
1090
1091 static int
wi_reset(struct wi_softc * sc)1092 wi_reset(struct wi_softc *sc)
1093 {
1094 #define WI_INIT_TRIES 3
1095 int i, error = 0;
1096
1097 for (i = 0; i < WI_INIT_TRIES; i++) {
1098 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0);
1099 if (error == 0)
1100 break;
1101 DELAY(WI_DELAY * 1000);
1102 }
1103 sc->sc_reset = 1;
1104 if (i == WI_INIT_TRIES) {
1105 device_printf(sc->sc_dev, "reset failed\n");
1106 return error;
1107 }
1108
1109 CSR_WRITE_2(sc, WI_INT_EN, 0);
1110 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1111
1112 /* Calibrate timer. */
1113 wi_write_val(sc, WI_RID_TICK_TIME, 8);
1114
1115 return 0;
1116 #undef WI_INIT_TRIES
1117 }
1118
1119 static void
wi_watchdog(void * arg)1120 wi_watchdog(void *arg)
1121 {
1122 struct wi_softc *sc = arg;
1123
1124 WI_LOCK_ASSERT(sc);
1125
1126 if (!sc->sc_enabled)
1127 return;
1128
1129 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
1130 device_printf(sc->sc_dev, "device timeout\n");
1131 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1132 wi_init(sc);
1133 return;
1134 }
1135 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
1136 }
1137
1138 static void
wi_parent(struct ieee80211com * ic)1139 wi_parent(struct ieee80211com *ic)
1140 {
1141 struct wi_softc *sc = ic->ic_softc;
1142 int startall = 0;
1143
1144 WI_LOCK(sc);
1145 /*
1146 * Can't do promisc and hostap at the same time. If all that's
1147 * changing is the promisc flag, try to short-circuit a call to
1148 * wi_init() by just setting PROMISC in the hardware.
1149 */
1150 if (ic->ic_nrunning > 0) {
1151 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1152 sc->sc_flags & WI_FLAGS_RUNNING) {
1153 if (ic->ic_promisc > 0 &&
1154 (sc->sc_flags & WI_FLAGS_PROMISC) == 0) {
1155 wi_write_val(sc, WI_RID_PROMISC, 1);
1156 sc->sc_flags |= WI_FLAGS_PROMISC;
1157 } else if (ic->ic_promisc == 0 &&
1158 (sc->sc_flags & WI_FLAGS_PROMISC) != 0) {
1159 wi_write_val(sc, WI_RID_PROMISC, 0);
1160 sc->sc_flags &= ~WI_FLAGS_PROMISC;
1161 } else {
1162 wi_init(sc);
1163 startall = 1;
1164 }
1165 } else {
1166 wi_init(sc);
1167 startall = 1;
1168 }
1169 } else if (sc->sc_flags & WI_FLAGS_RUNNING) {
1170 wi_stop(sc, 1);
1171 sc->wi_gone = 0;
1172 }
1173 WI_UNLOCK(sc);
1174 if (startall)
1175 ieee80211_start_all(ic);
1176 }
1177
1178 static void
wi_media_status(struct ifnet * ifp,struct ifmediareq * imr)1179 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1180 {
1181 struct ieee80211vap *vap = ifp->if_softc;
1182 struct ieee80211com *ic = vap->iv_ic;
1183 struct wi_softc *sc = ic->ic_softc;
1184 u_int16_t val;
1185 int rate, len;
1186
1187 len = sizeof(val);
1188 if (sc->sc_enabled &&
1189 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1190 len == sizeof(val)) {
1191 /* convert to 802.11 rate */
1192 val = le16toh(val);
1193 rate = val * 2;
1194 if (sc->sc_firmware_type == WI_LUCENT) {
1195 if (rate == 10)
1196 rate = 11; /* 5.5Mbps */
1197 } else {
1198 if (rate == 4*2)
1199 rate = 11; /* 5.5Mbps */
1200 else if (rate == 8*2)
1201 rate = 22; /* 11Mbps */
1202 }
1203 vap->iv_bss->ni_txrate = rate;
1204 }
1205 ieee80211_media_status(ifp, imr);
1206 }
1207
1208 static void
wi_sync_bssid(struct wi_softc * sc,u_int8_t new_bssid[IEEE80211_ADDR_LEN])1209 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1210 {
1211 struct ieee80211com *ic = &sc->sc_ic;
1212 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1213 struct ieee80211_node *ni = vap->iv_bss;
1214
1215 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1216 return;
1217
1218 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
1219 DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
1220
1221 /* In promiscuous mode, the BSSID field is not a reliable
1222 * indicator of the firmware's BSSID. Damp spurious
1223 * change-of-BSSID indications.
1224 */
1225 if (ic->ic_promisc > 0 &&
1226 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1227 WI_MAX_FALSE_SYNS))
1228 return;
1229
1230 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1231 #if 0
1232 /*
1233 * XXX hack; we should create a new node with the new bssid
1234 * and replace the existing ic_bss with it but since we don't
1235 * process management frames to collect state we cheat by
1236 * reusing the existing node as we know wi_newstate will be
1237 * called and it will overwrite the node state.
1238 */
1239 ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1240 #endif
1241 }
1242
1243 static __noinline void
wi_rx_intr(struct wi_softc * sc)1244 wi_rx_intr(struct wi_softc *sc)
1245 {
1246 struct ieee80211com *ic = &sc->sc_ic;
1247 struct wi_frame frmhdr;
1248 struct mbuf *m;
1249 struct ieee80211_frame *wh;
1250 struct ieee80211_node *ni;
1251 int fid, len, off;
1252 u_int8_t dir;
1253 u_int16_t status;
1254 int8_t rssi, nf;
1255
1256 fid = CSR_READ_2(sc, WI_RX_FID);
1257
1258 /* First read in the frame header */
1259 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1260 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1261 counter_u64_add(ic->ic_ierrors, 1);
1262 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1263 return;
1264 }
1265
1266 /*
1267 * Drop undecryptable or packets with receive errors here
1268 */
1269 status = le16toh(frmhdr.wi_status);
1270 if (status & WI_STAT_ERRSTAT) {
1271 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1272 counter_u64_add(ic->ic_ierrors, 1);
1273 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
1274 return;
1275 }
1276
1277 len = le16toh(frmhdr.wi_dat_len);
1278 off = ALIGN(sizeof(struct ieee80211_frame));
1279
1280 /*
1281 * Sometimes the PRISM2.x returns bogusly large frames. Except
1282 * in monitor mode, just throw them away.
1283 */
1284 if (off + len > MCLBYTES) {
1285 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1286 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1287 counter_u64_add(ic->ic_ierrors, 1);
1288 DPRINTF(("wi_rx_intr: oversized packet\n"));
1289 return;
1290 } else
1291 len = 0;
1292 }
1293
1294 if (off + len > MHLEN)
1295 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1296 else
1297 m = m_gethdr(M_NOWAIT, MT_DATA);
1298 if (m == NULL) {
1299 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1300 counter_u64_add(ic->ic_ierrors, 1);
1301 DPRINTF(("wi_rx_intr: MGET failed\n"));
1302 return;
1303 }
1304 m->m_data += off - sizeof(struct ieee80211_frame);
1305 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1306 wi_read_bap(sc, fid, sizeof(frmhdr),
1307 m->m_data + sizeof(struct ieee80211_frame), len);
1308 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1309
1310 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1311
1312 rssi = frmhdr.wi_rx_signal;
1313 nf = frmhdr.wi_rx_silence;
1314 if (ieee80211_radiotap_active(ic)) {
1315 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th;
1316 uint32_t rstamp;
1317
1318 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1319 le16toh(frmhdr.wi_rx_tstamp1);
1320 tap->wr_tsf = htole64((uint64_t)rstamp);
1321 /* XXX replace divide by table */
1322 tap->wr_rate = frmhdr.wi_rx_rate / 5;
1323 tap->wr_flags = 0;
1324 if (frmhdr.wi_status & WI_STAT_PCF)
1325 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1326 if (m->m_flags & M_WEP)
1327 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP;
1328 tap->wr_antsignal = rssi;
1329 tap->wr_antnoise = nf;
1330 }
1331
1332 /* synchronize driver's BSSID with firmware's BSSID */
1333 wh = mtod(m, struct ieee80211_frame *);
1334 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1335 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1336 wi_sync_bssid(sc, wh->i_addr3);
1337
1338 WI_UNLOCK(sc);
1339
1340 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1341 if (ni != NULL) {
1342 (void) ieee80211_input(ni, m, rssi, nf);
1343 ieee80211_free_node(ni);
1344 } else
1345 (void) ieee80211_input_all(ic, m, rssi, nf);
1346
1347 WI_LOCK(sc);
1348 }
1349
1350 static __noinline void
wi_tx_ex_intr(struct wi_softc * sc)1351 wi_tx_ex_intr(struct wi_softc *sc)
1352 {
1353 struct wi_frame frmhdr;
1354 int fid;
1355
1356 fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1357 /* Read in the frame header */
1358 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1359 u_int16_t status = le16toh(frmhdr.wi_status);
1360 /*
1361 * Spontaneous station disconnects appear as xmit
1362 * errors. Don't announce them and/or count them
1363 * as an output error.
1364 */
1365 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1366 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1367 device_printf(sc->sc_dev, "tx failed");
1368 if (status & WI_TXSTAT_RET_ERR)
1369 printf(", retry limit exceeded");
1370 if (status & WI_TXSTAT_AGED_ERR)
1371 printf(", max transmit lifetime exceeded");
1372 if (status & WI_TXSTAT_DISCONNECT)
1373 printf(", port disconnected");
1374 if (status & WI_TXSTAT_FORM_ERR)
1375 printf(", invalid format (data len %u src %6D)",
1376 le16toh(frmhdr.wi_dat_len),
1377 frmhdr.wi_ehdr.ether_shost, ":");
1378 if (status & ~0xf)
1379 printf(", status=0x%x", status);
1380 printf("\n");
1381 }
1382 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1383 } else
1384 DPRINTF(("port disconnected\n"));
1385 } else
1386 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1387 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1388 }
1389
1390 static __noinline void
wi_tx_intr(struct wi_softc * sc)1391 wi_tx_intr(struct wi_softc *sc)
1392 {
1393 int fid, cur;
1394
1395 if (sc->wi_gone)
1396 return;
1397
1398 fid = CSR_READ_2(sc, WI_ALLOC_FID);
1399 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1400
1401 cur = sc->sc_txcur;
1402 if (sc->sc_txd[cur].d_fid != fid) {
1403 device_printf(sc->sc_dev, "bad alloc %x != %x, cur %d nxt %d\n",
1404 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1405 return;
1406 }
1407 sc->sc_tx_timer = 0;
1408 sc->sc_txd[cur].d_len = 0;
1409 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1410 if (sc->sc_txd[cur].d_len != 0) {
1411 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1412 0, 0)) {
1413 device_printf(sc->sc_dev, "xmit failed\n");
1414 sc->sc_txd[cur].d_len = 0;
1415 } else {
1416 sc->sc_tx_timer = 5;
1417 }
1418 }
1419 }
1420
1421 static __noinline void
wi_info_intr(struct wi_softc * sc)1422 wi_info_intr(struct wi_softc *sc)
1423 {
1424 struct ieee80211com *ic = &sc->sc_ic;
1425 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1426 int i, fid, len, off;
1427 u_int16_t ltbuf[2];
1428 u_int16_t stat;
1429 u_int32_t *ptr;
1430
1431 fid = CSR_READ_2(sc, WI_INFO_FID);
1432 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1433
1434 switch (le16toh(ltbuf[1])) {
1435 case WI_INFO_LINK_STAT:
1436 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1437 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1438
1439 if (vap == NULL)
1440 goto finish;
1441
1442 switch (le16toh(stat)) {
1443 case WI_INFO_LINK_STAT_CONNECTED:
1444 if (vap->iv_state == IEEE80211_S_RUN &&
1445 vap->iv_opmode != IEEE80211_M_IBSS)
1446 break;
1447 /* fall thru... */
1448 case WI_INFO_LINK_STAT_AP_CHG:
1449 IEEE80211_LOCK(ic);
1450 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */
1451 ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
1452 IEEE80211_UNLOCK(ic);
1453 break;
1454 case WI_INFO_LINK_STAT_AP_INR:
1455 break;
1456 case WI_INFO_LINK_STAT_DISCONNECTED:
1457 /* we dropped off the net; e.g. due to deauth/disassoc */
1458 IEEE80211_LOCK(ic);
1459 vap->iv_bss->ni_associd = 0;
1460 vap->iv_stats.is_rx_deauth++;
1461 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1462 IEEE80211_UNLOCK(ic);
1463 break;
1464 case WI_INFO_LINK_STAT_AP_OOR:
1465 /* XXX does this need to be per-vap? */
1466 ieee80211_beacon_miss(ic);
1467 break;
1468 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1469 if (vap->iv_opmode == IEEE80211_M_STA)
1470 ieee80211_new_state(vap, IEEE80211_S_SCAN,
1471 IEEE80211_SCAN_FAIL_TIMEOUT);
1472 break;
1473 }
1474 break;
1475 case WI_INFO_COUNTERS:
1476 /* some card versions have a larger stats structure */
1477 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1478 ptr = (u_int32_t *)&sc->sc_stats;
1479 off = sizeof(ltbuf);
1480 for (i = 0; i < len; i++, off += 2, ptr++) {
1481 wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1482 #ifdef WI_HERMES_STATS_WAR
1483 if (stat & 0xf000)
1484 stat = ~stat;
1485 #endif
1486 *ptr += stat;
1487 }
1488 break;
1489 default:
1490 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1491 le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1492 break;
1493 }
1494 finish:
1495 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1496 }
1497
1498 static int
wi_write_multi(struct wi_softc * sc)1499 wi_write_multi(struct wi_softc *sc)
1500 {
1501 struct ieee80211com *ic = &sc->sc_ic;
1502 struct ieee80211vap *vap;
1503 struct wi_mcast mlist;
1504 int n;
1505
1506 if (ic->ic_allmulti > 0 || ic->ic_promisc > 0) {
1507 allmulti:
1508 memset(&mlist, 0, sizeof(mlist));
1509 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1510 sizeof(mlist));
1511 }
1512
1513 n = 0;
1514 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
1515 struct ifnet *ifp;
1516 struct ifmultiaddr *ifma;
1517
1518 ifp = vap->iv_ifp;
1519 if_maddr_rlock(ifp);
1520 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1521 if (ifma->ifma_addr->sa_family != AF_LINK)
1522 continue;
1523 if (n >= 16)
1524 goto allmulti;
1525 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1526 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1527 n++;
1528 }
1529 if_maddr_runlock(ifp);
1530 }
1531 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1532 IEEE80211_ADDR_LEN * n);
1533 }
1534
1535 static void
wi_update_mcast(struct ieee80211com * ic)1536 wi_update_mcast(struct ieee80211com *ic)
1537 {
1538
1539 wi_write_multi(ic->ic_softc);
1540 }
1541
1542 static void
wi_update_promisc(struct ieee80211com * ic)1543 wi_update_promisc(struct ieee80211com *ic)
1544 {
1545 struct wi_softc *sc = ic->ic_softc;
1546
1547 WI_LOCK(sc);
1548 /* XXX handle WEP special case handling? */
1549 wi_write_val(sc, WI_RID_PROMISC,
1550 (ic->ic_opmode == IEEE80211_M_MONITOR ||
1551 (ic->ic_promisc > 0)));
1552 WI_UNLOCK(sc);
1553 }
1554
1555 static void
wi_read_nicid(struct wi_softc * sc)1556 wi_read_nicid(struct wi_softc *sc)
1557 {
1558 struct wi_card_ident *id;
1559 char *p;
1560 int len;
1561 u_int16_t ver[4];
1562
1563 /* getting chip identity */
1564 memset(ver, 0, sizeof(ver));
1565 len = sizeof(ver);
1566 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1567
1568 sc->sc_firmware_type = WI_NOTYPE;
1569 sc->sc_nic_id = le16toh(ver[0]);
1570 for (id = wi_card_ident; id->card_name != NULL; id++) {
1571 if (sc->sc_nic_id == id->card_id) {
1572 sc->sc_nic_name = id->card_name;
1573 sc->sc_firmware_type = id->firm_type;
1574 break;
1575 }
1576 }
1577 if (sc->sc_firmware_type == WI_NOTYPE) {
1578 if (sc->sc_nic_id & 0x8000) {
1579 sc->sc_firmware_type = WI_INTERSIL;
1580 sc->sc_nic_name = "Unknown Prism chip";
1581 } else {
1582 sc->sc_firmware_type = WI_LUCENT;
1583 sc->sc_nic_name = "Unknown Lucent chip";
1584 }
1585 }
1586 if (bootverbose)
1587 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name);
1588
1589 /* get primary firmware version (Only Prism chips) */
1590 if (sc->sc_firmware_type != WI_LUCENT) {
1591 memset(ver, 0, sizeof(ver));
1592 len = sizeof(ver);
1593 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1594 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1595 le16toh(ver[3]) * 100 + le16toh(ver[1]);
1596 }
1597
1598 /* get station firmware version */
1599 memset(ver, 0, sizeof(ver));
1600 len = sizeof(ver);
1601 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1602 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1603 le16toh(ver[3]) * 100 + le16toh(ver[1]);
1604 if (sc->sc_firmware_type == WI_INTERSIL &&
1605 (sc->sc_sta_firmware_ver == 10102 ||
1606 sc->sc_sta_firmware_ver == 20102)) {
1607 char ident[12];
1608 memset(ident, 0, sizeof(ident));
1609 len = sizeof(ident);
1610 /* value should be the format like "V2.00-11" */
1611 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1612 *(p = (char *)ident) >= 'A' &&
1613 p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1614 sc->sc_firmware_type = WI_SYMBOL;
1615 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1616 (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1617 (p[6] - '0') * 10 + (p[7] - '0');
1618 }
1619 }
1620 if (bootverbose) {
1621 device_printf(sc->sc_dev, "%s Firmware: ",
1622 wi_firmware_names[sc->sc_firmware_type]);
1623 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */
1624 printf("Primary (%u.%u.%u), ",
1625 sc->sc_pri_firmware_ver / 10000,
1626 (sc->sc_pri_firmware_ver % 10000) / 100,
1627 sc->sc_pri_firmware_ver % 100);
1628 printf("Station (%u.%u.%u)\n",
1629 sc->sc_sta_firmware_ver / 10000,
1630 (sc->sc_sta_firmware_ver % 10000) / 100,
1631 sc->sc_sta_firmware_ver % 100);
1632 }
1633 }
1634
1635 static int
wi_write_ssid(struct wi_softc * sc,int rid,u_int8_t * buf,int buflen)1636 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1637 {
1638 struct wi_ssid ssid;
1639
1640 if (buflen > IEEE80211_NWID_LEN)
1641 return ENOBUFS;
1642 memset(&ssid, 0, sizeof(ssid));
1643 ssid.wi_len = htole16(buflen);
1644 memcpy(ssid.wi_ssid, buf, buflen);
1645 return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1646 }
1647
1648 static int
wi_write_txrate(struct wi_softc * sc,struct ieee80211vap * vap)1649 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap)
1650 {
1651 static const uint16_t lucent_rates[12] = {
1652 [ 0] = 3, /* auto */
1653 [ 1] = 1, /* 1Mb/s */
1654 [ 2] = 2, /* 2Mb/s */
1655 [ 5] = 4, /* 5.5Mb/s */
1656 [11] = 5 /* 11Mb/s */
1657 };
1658 static const uint16_t intersil_rates[12] = {
1659 [ 0] = 0xf, /* auto */
1660 [ 1] = 0, /* 1Mb/s */
1661 [ 2] = 1, /* 2Mb/s */
1662 [ 5] = 2, /* 5.5Mb/s */
1663 [11] = 3, /* 11Mb/s */
1664 };
1665 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ?
1666 lucent_rates : intersil_rates;
1667 struct ieee80211com *ic = vap->iv_ic;
1668 const struct ieee80211_txparam *tp;
1669
1670 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
1671 return wi_write_val(sc, WI_RID_TX_RATE,
1672 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
1673 rates[0] : rates[tp->ucastrate / 2]));
1674 }
1675
1676 static int
wi_write_wep(struct wi_softc * sc,struct ieee80211vap * vap)1677 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap)
1678 {
1679 int error = 0;
1680 int i, keylen;
1681 u_int16_t val;
1682 struct wi_key wkey[IEEE80211_WEP_NKID];
1683
1684 switch (sc->sc_firmware_type) {
1685 case WI_LUCENT:
1686 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
1687 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
1688 if (error)
1689 break;
1690 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
1691 break;
1692 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey);
1693 if (error)
1694 break;
1695 memset(wkey, 0, sizeof(wkey));
1696 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
1697 keylen = vap->iv_nw_keys[i].wk_keylen;
1698 wkey[i].wi_keylen = htole16(keylen);
1699 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key,
1700 keylen);
1701 }
1702 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
1703 wkey, sizeof(wkey));
1704 sc->sc_encryption = 0;
1705 break;
1706
1707 case WI_INTERSIL:
1708 val = HOST_ENCRYPT | HOST_DECRYPT;
1709 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
1710 /*
1711 * ONLY HWB3163 EVAL-CARD Firmware version
1712 * less than 0.8 variant2
1713 *
1714 * If promiscuous mode disable, Prism2 chip
1715 * does not work with WEP .
1716 * It is under investigation for details.
1717 * (ichiro@netbsd.org)
1718 */
1719 if (sc->sc_sta_firmware_ver < 802 ) {
1720 /* firm ver < 0.8 variant 2 */
1721 wi_write_val(sc, WI_RID_PROMISC, 1);
1722 }
1723 wi_write_val(sc, WI_RID_CNFAUTHMODE,
1724 vap->iv_bss->ni_authmode);
1725 val |= PRIVACY_INVOKED;
1726 } else {
1727 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN);
1728 }
1729 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
1730 if (error)
1731 break;
1732 sc->sc_encryption = val;
1733 if ((val & PRIVACY_INVOKED) == 0)
1734 break;
1735 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey);
1736 break;
1737 }
1738 return error;
1739 }
1740
1741 static int
wi_cmd(struct wi_softc * sc,int cmd,int val0,int val1,int val2)1742 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
1743 {
1744 int i, s = 0;
1745
1746 if (sc->wi_gone)
1747 return (ENODEV);
1748
1749 /* wait for the busy bit to clear */
1750 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */
1751 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
1752 break;
1753 DELAY(1*1000); /* 1ms */
1754 }
1755 if (i == 0) {
1756 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n",
1757 __func__, cmd);
1758 sc->wi_gone = 1;
1759 return(ETIMEDOUT);
1760 }
1761
1762 CSR_WRITE_2(sc, WI_PARAM0, val0);
1763 CSR_WRITE_2(sc, WI_PARAM1, val1);
1764 CSR_WRITE_2(sc, WI_PARAM2, val2);
1765 CSR_WRITE_2(sc, WI_COMMAND, cmd);
1766
1767 if (cmd == WI_CMD_INI) {
1768 /* XXX: should sleep here. */
1769 DELAY(100*1000); /* 100ms delay for init */
1770 }
1771 for (i = 0; i < WI_TIMEOUT; i++) {
1772 /*
1773 * Wait for 'command complete' bit to be
1774 * set in the event status register.
1775 */
1776 s = CSR_READ_2(sc, WI_EVENT_STAT);
1777 if (s & WI_EV_CMD) {
1778 /* Ack the event and read result code. */
1779 s = CSR_READ_2(sc, WI_STATUS);
1780 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
1781 if (s & WI_STAT_CMD_RESULT) {
1782 return(EIO);
1783 }
1784 break;
1785 }
1786 DELAY(WI_DELAY);
1787 }
1788
1789 if (i == WI_TIMEOUT) {
1790 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; "
1791 "event status 0x%04x\n", __func__, cmd, s);
1792 if (s == 0xffff)
1793 sc->wi_gone = 1;
1794 return(ETIMEDOUT);
1795 }
1796 return (0);
1797 }
1798
1799 static int
wi_seek_bap(struct wi_softc * sc,int id,int off)1800 wi_seek_bap(struct wi_softc *sc, int id, int off)
1801 {
1802 int i, status;
1803
1804 CSR_WRITE_2(sc, WI_SEL0, id);
1805 CSR_WRITE_2(sc, WI_OFF0, off);
1806
1807 for (i = 0; ; i++) {
1808 status = CSR_READ_2(sc, WI_OFF0);
1809 if ((status & WI_OFF_BUSY) == 0)
1810 break;
1811 if (i == WI_TIMEOUT) {
1812 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n",
1813 __func__, id, off);
1814 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
1815 if (status == 0xffff)
1816 sc->wi_gone = 1;
1817 return ETIMEDOUT;
1818 }
1819 DELAY(1);
1820 }
1821 if (status & WI_OFF_ERR) {
1822 device_printf(sc->sc_dev, "%s: error, id %x off %x\n",
1823 __func__, id, off);
1824 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
1825 return EIO;
1826 }
1827 sc->sc_bap_id = id;
1828 sc->sc_bap_off = off;
1829 return 0;
1830 }
1831
1832 static int
wi_read_bap(struct wi_softc * sc,int id,int off,void * buf,int buflen)1833 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
1834 {
1835 int error, cnt;
1836
1837 if (buflen == 0)
1838 return 0;
1839 if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
1840 if ((error = wi_seek_bap(sc, id, off)) != 0)
1841 return error;
1842 }
1843 cnt = (buflen + 1) / 2;
1844 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt);
1845 sc->sc_bap_off += cnt * 2;
1846 return 0;
1847 }
1848
1849 static int
wi_write_bap(struct wi_softc * sc,int id,int off,const void * buf,int buflen)1850 wi_write_bap(struct wi_softc *sc, int id, int off, const void *buf, int buflen)
1851 {
1852 int error, cnt;
1853
1854 if (buflen == 0)
1855 return 0;
1856
1857 if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
1858 if ((error = wi_seek_bap(sc, id, off)) != 0)
1859 return error;
1860 }
1861 cnt = (buflen + 1) / 2;
1862 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (const uint16_t *)buf, cnt);
1863 sc->sc_bap_off += cnt * 2;
1864
1865 return 0;
1866 }
1867
1868 static int
wi_mwrite_bap(struct wi_softc * sc,int id,int off,struct mbuf * m0,int totlen)1869 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
1870 {
1871 int error, len;
1872 struct mbuf *m;
1873
1874 for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
1875 if (m->m_len == 0)
1876 continue;
1877
1878 len = min(m->m_len, totlen);
1879
1880 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
1881 m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
1882 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
1883 totlen);
1884 }
1885
1886 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
1887 return error;
1888
1889 off += m->m_len;
1890 totlen -= len;
1891 }
1892 return 0;
1893 }
1894
1895 static int
wi_alloc_fid(struct wi_softc * sc,int len,int * idp)1896 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
1897 {
1898 int i;
1899
1900 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
1901 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n",
1902 __func__, len);
1903 return ENOMEM;
1904 }
1905
1906 for (i = 0; i < WI_TIMEOUT; i++) {
1907 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
1908 break;
1909 DELAY(1);
1910 }
1911 if (i == WI_TIMEOUT) {
1912 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__);
1913 return ETIMEDOUT;
1914 }
1915 *idp = CSR_READ_2(sc, WI_ALLOC_FID);
1916 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1917 return 0;
1918 }
1919
1920 static int
wi_read_rid(struct wi_softc * sc,int rid,void * buf,int * buflenp)1921 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
1922 {
1923 int error, len;
1924 u_int16_t ltbuf[2];
1925
1926 /* Tell the NIC to enter record read mode. */
1927 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
1928 if (error)
1929 return error;
1930
1931 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
1932 if (error)
1933 return error;
1934
1935 if (le16toh(ltbuf[1]) != rid) {
1936 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
1937 rid, le16toh(ltbuf[1]));
1938 return EIO;
1939 }
1940 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */
1941 if (*buflenp < len) {
1942 device_printf(sc->sc_dev, "record buffer is too small, "
1943 "rid=%x, size=%d, len=%d\n",
1944 rid, *buflenp, len);
1945 return ENOSPC;
1946 }
1947 *buflenp = len;
1948 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
1949 }
1950
1951 static int
wi_write_rid(struct wi_softc * sc,int rid,const void * buf,int buflen)1952 wi_write_rid(struct wi_softc *sc, int rid, const void *buf, int buflen)
1953 {
1954 int error;
1955 u_int16_t ltbuf[2];
1956
1957 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */
1958 ltbuf[1] = htole16(rid);
1959
1960 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
1961 if (error) {
1962 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n",
1963 __func__, rid);
1964 return error;
1965 }
1966 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
1967 if (error) {
1968 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n",
1969 __func__, rid);
1970 return error;
1971 }
1972
1973 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
1974 }
1975
1976 static int
wi_write_appie(struct wi_softc * sc,int rid,const struct ieee80211_appie * ie)1977 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie)
1978 {
1979 /* NB: 42 bytes is probably ok to have on the stack */
1980 char buf[sizeof(uint16_t) + 40];
1981
1982 if (ie->ie_len > 40)
1983 return EINVAL;
1984 /* NB: firmware requires 16-bit ie length before ie data */
1985 *(uint16_t *) buf = htole16(ie->ie_len);
1986 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len);
1987 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t));
1988 }
1989
1990 int
wi_alloc(device_t dev,int rid)1991 wi_alloc(device_t dev, int rid)
1992 {
1993 struct wi_softc *sc = device_get_softc(dev);
1994
1995 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
1996 sc->iobase_rid = rid;
1997 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
1998 &sc->iobase_rid, 0, ~0, (1 << 6),
1999 rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2000 if (sc->iobase == NULL) {
2001 device_printf(dev, "No I/O space?!\n");
2002 return ENXIO;
2003 }
2004
2005 sc->wi_io_addr = rman_get_start(sc->iobase);
2006 sc->wi_btag = rman_get_bustag(sc->iobase);
2007 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2008 } else {
2009 sc->mem_rid = rid;
2010 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2011 &sc->mem_rid, RF_ACTIVE);
2012 if (sc->mem == NULL) {
2013 device_printf(dev, "No Mem space on prism2.5?\n");
2014 return ENXIO;
2015 }
2016
2017 sc->wi_btag = rman_get_bustag(sc->mem);
2018 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2019 }
2020
2021 sc->irq_rid = 0;
2022 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2023 RF_ACTIVE |
2024 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2025 if (sc->irq == NULL) {
2026 wi_free(dev);
2027 device_printf(dev, "No irq?!\n");
2028 return ENXIO;
2029 }
2030
2031 sc->sc_dev = dev;
2032 sc->sc_unit = device_get_unit(dev);
2033 return 0;
2034 }
2035
2036 void
wi_free(device_t dev)2037 wi_free(device_t dev)
2038 {
2039 struct wi_softc *sc = device_get_softc(dev);
2040
2041 if (sc->iobase != NULL) {
2042 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2043 sc->iobase = NULL;
2044 }
2045 if (sc->irq != NULL) {
2046 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2047 sc->irq = NULL;
2048 }
2049 if (sc->mem != NULL) {
2050 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2051 sc->mem = NULL;
2052 }
2053 }
2054