1 /*-
2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * $FreeBSD: head/sys/dev/wi/if_wi.c 299083 2016-05-04 18:08:38Z avos $
33 */
34
35 /*
36 * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
37 *
38 * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
39 * Electrical Engineering Department
40 * Columbia University, New York City
41 */
42
43 /*
44 * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
45 * from Lucent. Unlike the older cards, the new ones are programmed
46 * entirely via a firmware-driven controller called the Hermes.
47 * Unfortunately, Lucent will not release the Hermes programming manual
48 * without an NDA (if at all). What they do release is an API library
49 * called the HCF (Hardware Control Functions) which is supposed to
50 * do the device-specific operations of a device driver for you. The
51 * publicly available version of the HCF library (the 'HCF Light') is
52 * a) extremely gross, b) lacks certain features, particularly support
53 * for 802.11 frames, and c) is contaminated by the GNU Public License.
54 *
55 * This driver does not use the HCF or HCF Light at all. Instead, it
56 * programs the Hermes controller directly, using information gleaned
57 * from the HCF Light code and corresponding documentation.
58 *
59 * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
60 * WaveLan cards (based on the Hermes chipset), as well as the newer
61 * Prism 2 chipsets with firmware from Intersil and Symbol.
62 */
63
64 #include "opt_wlan.h"
65
66 #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */
67
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/endian.h>
71 #include <sys/sockio.h>
72 #include <sys/mbuf.h>
73 #include <sys/caps.h>
74 #include <sys/proc.h>
75 #include <sys/kernel.h>
76 #include <sys/malloc.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 #if !defined(__DragonFly__)
85 #include <machine/bus.h>
86 #include <machine/resource.h>
87 #endif
88 #include <machine/atomic.h>
89 #include <sys/rman.h>
90
91 #include <net/if.h>
92 #include <net/if_var.h>
93 #include <net/if_arp.h>
94 #include <net/ethernet.h>
95 #include <net/if_dl.h>
96 #include <net/if_llc.h>
97 #include <net/if_media.h>
98 #include <net/if_types.h>
99
100 #if defined(__DragonFly__)
101 #include <netproto/802_11/ieee80211_var.h>
102 #include <netproto/802_11/ieee80211_ioctl.h>
103 #include <netproto/802_11/ieee80211_radiotap.h>
104 #else
105 #include <net80211/ieee80211_var.h>
106 #include <net80211/ieee80211_ioctl.h>
107 #include <net80211/ieee80211_radiotap.h>
108 #endif
109
110 #include <netinet/in.h>
111 #include <netinet/in_systm.h>
112 #include <netinet/in_var.h>
113 #include <netinet/ip.h>
114 #include <netinet/if_ether.h>
115
116 #include <net/bpf.h>
117
118 #if defined(__DragonFly__)
119 #include "if_wavelan_ieee.h"
120 #include "if_wireg.h"
121 #include "if_wivar.h"
122 #else
123 #include <dev/wi/if_wavelan_ieee.h>
124 #include <dev/wi/if_wireg.h>
125 #include <dev/wi/if_wivar.h>
126 #endif
127
128 static struct ieee80211vap *wi_vap_create(struct ieee80211com *,
129 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
130 const uint8_t [IEEE80211_ADDR_LEN],
131 const uint8_t [IEEE80211_ADDR_LEN]);
132 static void wi_vap_delete(struct ieee80211vap *vap);
133 static int wi_transmit(struct ieee80211com *, struct mbuf *);
134 static void wi_start(struct wi_softc *);
135 static int wi_start_tx(struct wi_softc *, struct wi_frame *, struct mbuf *);
136 static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *,
137 const struct ieee80211_bpf_params *);
138 static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int);
139 static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state,
140 int);
141 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
142 int subtype, const struct ieee80211_rx_stats *rxs,
143 int rssi, int nf);
144 static int wi_reset(struct wi_softc *);
145 static void wi_watchdog(void *);
146 static void wi_parent(struct ieee80211com *);
147 static void wi_media_status(struct ifnet *, struct ifmediareq *);
148 static void wi_rx_intr(struct wi_softc *);
149 static void wi_tx_intr(struct wi_softc *);
150 static void wi_tx_ex_intr(struct wi_softc *);
151
152 static void wi_info_intr(struct wi_softc *);
153
154 static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *);
155 static int wi_write_wep(struct wi_softc *, struct ieee80211vap *);
156 static int wi_write_multi(struct wi_softc *);
157 static void wi_update_mcast(struct ieee80211com *);
158 static void wi_update_promisc(struct ieee80211com *);
159 static int wi_alloc_fid(struct wi_softc *, int, int *);
160 static void wi_read_nicid(struct wi_softc *);
161 static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
162
163 static int wi_cmd(struct wi_softc *, int, int, int, int);
164 static int wi_seek_bap(struct wi_softc *, int, int);
165 static int wi_read_bap(struct wi_softc *, int, int, void *, int);
166 static int wi_write_bap(struct wi_softc *, int, int, const void *, int);
167 static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
168 static int wi_read_rid(struct wi_softc *, int, void *, int *);
169 static int wi_write_rid(struct wi_softc *, int, const void *, int);
170 static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *);
171
172 static void wi_scan_start(struct ieee80211com *);
173 static void wi_scan_end(struct ieee80211com *);
174 static void wi_set_channel(struct ieee80211com *);
175
176 static __inline int
wi_write_val(struct wi_softc * sc,int rid,u_int16_t val)177 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
178 {
179
180 val = htole16(val);
181 return wi_write_rid(sc, rid, &val, sizeof(val));
182 }
183
184 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
185 "Wireless driver parameters");
186
187 static struct timeval lasttxerror; /* time of last tx error msg */
188 static int curtxeps; /* current tx error msgs/sec */
189 static int wi_txerate = 0; /* tx error rate: max msgs/sec */
190 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
191 0, "max tx error msgs/sec; 0 to disable msgs");
192
193 #define WI_DEBUG
194 #ifdef WI_DEBUG
195 static int wi_debug = 0;
196 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
197 0, "control debugging printfs");
198 #define DPRINTF(X) if (wi_debug) kprintf X
199 #else
200 #define DPRINTF(X)
201 #endif
202
203 #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
204
205 struct wi_card_ident wi_card_ident[] = {
206 /* CARD_ID CARD_NAME FIRM_TYPE */
207 { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT },
208 { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT },
209 { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT },
210 { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL },
211 { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL },
212 { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL },
213 { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL },
214 { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL },
215 { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL },
216 { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL },
217 { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL },
218 { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL },
219 { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
220 { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
221 { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
222 { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
223 { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
224 { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
225 { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
226 { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL },
227 { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
228 { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
229 { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
230 { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL },
231 { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
232 { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
233 { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
234 { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL },
235 { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
236 { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
237 { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
238 { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL },
239 { 0, NULL, 0 },
240 };
241
242 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" };
243
244 devclass_t wi_devclass;
245
246 int
wi_attach(device_t dev)247 wi_attach(device_t dev)
248 {
249 struct wi_softc *sc = device_get_softc(dev);
250 struct ieee80211com *ic = &sc->sc_ic;
251 int i, nrates, buflen;
252 u_int16_t val;
253 u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
254 struct ieee80211_rateset *rs;
255 struct sysctl_ctx_list *sctx;
256 struct sysctl_oid *soid;
257 static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
258 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
259 };
260 int error;
261
262 sc->sc_firmware_type = WI_NOTYPE;
263 sc->wi_cmd_count = 500;
264 /* Reset the NIC. */
265 if (wi_reset(sc) != 0) {
266 wi_free(dev);
267 return ENXIO; /* XXX */
268 }
269
270 /* Read NIC identification */
271 wi_read_nicid(sc);
272 switch (sc->sc_firmware_type) {
273 case WI_LUCENT:
274 if (sc->sc_sta_firmware_ver < 60006)
275 goto reject;
276 break;
277 case WI_INTERSIL:
278 if (sc->sc_sta_firmware_ver < 800)
279 goto reject;
280 break;
281 default:
282 reject:
283 device_printf(dev, "Sorry, this card is not supported "
284 "(type %d, firmware ver %d)\n",
285 sc->sc_firmware_type, sc->sc_sta_firmware_ver);
286 wi_free(dev);
287 return EOPNOTSUPP;
288 }
289
290 /* Export info about the device via sysctl */
291 sctx = device_get_sysctl_ctx(dev);
292 soid = device_get_sysctl_tree(dev);
293 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
294 "firmware_type", CTLFLAG_RD,
295 wi_firmware_names[sc->sc_firmware_type], 0,
296 "Firmware type string");
297 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version",
298 CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0,
299 "Station Firmware version");
300 if (sc->sc_firmware_type == WI_INTERSIL)
301 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
302 "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0,
303 "Primary Firmware version");
304 SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id",
305 CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id");
306 SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name",
307 CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name");
308
309 #if defined(__DragonFly__)
310 lockinit(&sc->sc_lk, device_get_nameunit(dev), 0, LK_CANRECURSE);
311 callout_init_lk(&sc->sc_watchdog, &sc->sc_lk);
312 #else
313 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
314 MTX_DEF | MTX_RECURSE);
315 callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
316 #endif
317 mbufq_init(&sc->sc_snd, ifqmaxlen);
318
319 /*
320 * Read the station address.
321 * And do it twice. I've seen PRISM-based cards that return
322 * an error when trying to read it the first time, which causes
323 * the probe to fail.
324 */
325 buflen = IEEE80211_ADDR_LEN;
326 error = wi_read_rid(sc, WI_RID_MAC_NODE, &ic->ic_macaddr, &buflen);
327 if (error != 0) {
328 buflen = IEEE80211_ADDR_LEN;
329 error = wi_read_rid(sc, WI_RID_MAC_NODE, &ic->ic_macaddr,
330 &buflen);
331 }
332 if (error || IEEE80211_ADDR_EQ(&ic->ic_macaddr, empty_macaddr)) {
333 if (error != 0)
334 device_printf(dev, "mac read failed %d\n", error);
335 else {
336 device_printf(dev, "mac read failed (all zeros)\n");
337 error = ENXIO;
338 }
339 wi_free(dev);
340 return (error);
341 }
342
343 ic->ic_softc = sc;
344 ic->ic_name = device_get_nameunit(dev);
345 ic->ic_phytype = IEEE80211_T_DS;
346 ic->ic_opmode = IEEE80211_M_STA;
347 ic->ic_caps = IEEE80211_C_STA
348 | IEEE80211_C_PMGT
349 | IEEE80211_C_MONITOR
350 ;
351
352 /*
353 * Query the card for available channels and setup the
354 * channel table. We assume these are all 11b channels.
355 */
356 buflen = sizeof(val);
357 if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
358 val = htole16(0x1fff); /* assume 1-13 */
359 KASSERT(val != 0, ("wi_attach: no available channels listed!"));
360
361 val <<= 1; /* shift for base 1 indices */
362 for (i = 1; i < 16; i++) {
363 struct ieee80211_channel *c;
364
365 if (!isset((u_int8_t*)&val, i))
366 continue;
367 c = &ic->ic_channels[ic->ic_nchans++];
368 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
369 c->ic_flags = IEEE80211_CHAN_B;
370 c->ic_ieee = i;
371 /* XXX txpowers? */
372 }
373
374 /*
375 * Set flags based on firmware version.
376 */
377 switch (sc->sc_firmware_type) {
378 case WI_LUCENT:
379 sc->sc_ntxbuf = 1;
380 ic->ic_caps |= IEEE80211_C_IBSS;
381
382 sc->sc_ibss_port = WI_PORTTYPE_BSS;
383 sc->sc_monitor_port = WI_PORTTYPE_ADHOC;
384 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
385 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
386 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
387 break;
388 case WI_INTERSIL:
389 sc->sc_ntxbuf = WI_NTXBUF;
390 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR
391 | WI_FLAGS_HAS_ROAMING;
392 /*
393 * Old firmware are slow, so give peace a chance.
394 */
395 if (sc->sc_sta_firmware_ver < 10000)
396 sc->wi_cmd_count = 5000;
397 if (sc->sc_sta_firmware_ver > 10101)
398 sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
399 ic->ic_caps |= IEEE80211_C_IBSS;
400 /*
401 * version 0.8.3 and newer are the only ones that are known
402 * to currently work. Earlier versions can be made to work,
403 * at least according to the Linux driver but we require
404 * monitor mode so this is irrelevant.
405 */
406 ic->ic_caps |= IEEE80211_C_HOSTAP;
407 if (sc->sc_sta_firmware_ver >= 10603)
408 sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY;
409 if (sc->sc_sta_firmware_ver >= 10700) {
410 /*
411 * 1.7.0+ have the necessary support for sta mode WPA.
412 */
413 sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT;
414 ic->ic_caps |= IEEE80211_C_WPA;
415 }
416
417 sc->sc_ibss_port = WI_PORTTYPE_IBSS;
418 sc->sc_monitor_port = WI_PORTTYPE_APSILENT;
419 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
420 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
421 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
422 break;
423 }
424
425 /*
426 * Find out if we support WEP on this card.
427 */
428 buflen = sizeof(val);
429 if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
430 val != htole16(0))
431 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
432
433 /* Find supported rates. */
434 buflen = sizeof(ratebuf);
435 rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
436 if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
437 nrates = le16toh(*(u_int16_t *)ratebuf);
438 if (nrates > IEEE80211_RATE_MAXSIZE)
439 nrates = IEEE80211_RATE_MAXSIZE;
440 rs->rs_nrates = 0;
441 for (i = 0; i < nrates; i++)
442 if (ratebuf[2+i])
443 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
444 } else {
445 /* XXX fallback on error? */
446 }
447
448 buflen = sizeof(val);
449 if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
450 wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
451 sc->sc_dbm_offset = le16toh(val);
452 }
453
454 sc->sc_portnum = WI_DEFAULT_PORT;
455
456 ieee80211_ifattach(ic);
457 ic->ic_raw_xmit = wi_raw_xmit;
458 ic->ic_scan_start = wi_scan_start;
459 ic->ic_scan_end = wi_scan_end;
460 ic->ic_set_channel = wi_set_channel;
461 ic->ic_vap_create = wi_vap_create;
462 ic->ic_vap_delete = wi_vap_delete;
463 ic->ic_update_mcast = wi_update_mcast;
464 ic->ic_update_promisc = wi_update_promisc;
465 ic->ic_transmit = wi_transmit;
466 ic->ic_parent = wi_parent;
467
468 ieee80211_radiotap_attach(ic,
469 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
470 WI_TX_RADIOTAP_PRESENT,
471 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
472 WI_RX_RADIOTAP_PRESENT);
473
474 if (bootverbose)
475 ieee80211_announce(ic);
476
477 #if defined(__DragonFly__)
478 error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
479 wi_intr, sc, &sc->wi_intrhand, NULL);
480 #else
481 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
482 NULL, wi_intr, sc, &sc->wi_intrhand);
483 #endif
484 if (error) {
485 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
486 ieee80211_ifdetach(ic);
487 wi_free(dev);
488 return error;
489 }
490
491 return (0);
492 }
493
494 int
wi_detach(device_t dev)495 wi_detach(device_t dev)
496 {
497 struct wi_softc *sc = device_get_softc(dev);
498 struct ieee80211com *ic = &sc->sc_ic;
499
500 WI_LOCK(sc);
501
502 /* check if device was removed */
503 sc->wi_gone |= !bus_child_present(dev);
504
505 wi_stop(sc, 0);
506 WI_UNLOCK(sc);
507 ieee80211_ifdetach(ic);
508
509 bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
510 wi_free(dev);
511 mbufq_drain(&sc->sc_snd);
512 #if defined(__DragonFly__)
513 lockuninit(&sc->sc_lk);
514 #else
515 mtx_destroy(&sc->sc_mtx);
516 #endif
517 return (0);
518 }
519
520 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])521 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
522 enum ieee80211_opmode opmode, int flags,
523 const uint8_t bssid[IEEE80211_ADDR_LEN],
524 const uint8_t mac[IEEE80211_ADDR_LEN])
525 {
526 struct wi_softc *sc = ic->ic_softc;
527 struct wi_vap *wvp;
528 struct ieee80211vap *vap;
529
530 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
531 return NULL;
532 wvp = kmalloc(sizeof(struct wi_vap), M_80211_VAP, M_WAITOK | M_ZERO);
533
534 vap = &wvp->wv_vap;
535 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid);
536
537 vap->iv_max_aid = WI_MAX_AID;
538
539 switch (opmode) {
540 case IEEE80211_M_STA:
541 sc->sc_porttype = WI_PORTTYPE_BSS;
542 wvp->wv_newstate = vap->iv_newstate;
543 vap->iv_newstate = wi_newstate_sta;
544 /* need to filter mgt frames to avoid confusing state machine */
545 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
546 vap->iv_recv_mgmt = wi_recv_mgmt;
547 break;
548 case IEEE80211_M_IBSS:
549 sc->sc_porttype = sc->sc_ibss_port;
550 wvp->wv_newstate = vap->iv_newstate;
551 vap->iv_newstate = wi_newstate_sta;
552 break;
553 case IEEE80211_M_AHDEMO:
554 sc->sc_porttype = WI_PORTTYPE_ADHOC;
555 break;
556 case IEEE80211_M_HOSTAP:
557 sc->sc_porttype = WI_PORTTYPE_HOSTAP;
558 wvp->wv_newstate = vap->iv_newstate;
559 vap->iv_newstate = wi_newstate_hostap;
560 break;
561 case IEEE80211_M_MONITOR:
562 sc->sc_porttype = sc->sc_monitor_port;
563 break;
564 default:
565 break;
566 }
567
568 /* complete setup */
569 ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status, mac);
570 ic->ic_opmode = opmode;
571 return vap;
572 }
573
574 static void
wi_vap_delete(struct ieee80211vap * vap)575 wi_vap_delete(struct ieee80211vap *vap)
576 {
577 struct wi_vap *wvp = WI_VAP(vap);
578
579 ieee80211_vap_detach(vap);
580 kfree(wvp, M_80211_VAP);
581 }
582
583 int
wi_shutdown(device_t dev)584 wi_shutdown(device_t dev)
585 {
586 struct wi_softc *sc = device_get_softc(dev);
587
588 WI_LOCK(sc);
589 wi_stop(sc, 1);
590 WI_UNLOCK(sc);
591 return (0);
592 }
593
594 void
wi_intr(void * arg)595 wi_intr(void *arg)
596 {
597 struct wi_softc *sc = arg;
598 u_int16_t status;
599
600 WI_LOCK(sc);
601
602 if (sc->wi_gone || !sc->sc_enabled ||
603 (sc->sc_flags & WI_FLAGS_RUNNING) == 0) {
604 CSR_WRITE_2(sc, WI_INT_EN, 0);
605 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
606 WI_UNLOCK(sc);
607 return;
608 }
609
610 /* Disable interrupts. */
611 CSR_WRITE_2(sc, WI_INT_EN, 0);
612
613 status = CSR_READ_2(sc, WI_EVENT_STAT);
614 if (status & WI_EV_RX)
615 wi_rx_intr(sc);
616 if (status & WI_EV_ALLOC)
617 wi_tx_intr(sc);
618 if (status & WI_EV_TX_EXC)
619 wi_tx_ex_intr(sc);
620 if (status & WI_EV_INFO)
621 wi_info_intr(sc);
622 if (mbufq_first(&sc->sc_snd) != NULL)
623 wi_start(sc);
624
625 /* Re-enable interrupts. */
626 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
627
628 WI_UNLOCK(sc);
629
630 return;
631 }
632
633 static void
wi_enable(struct wi_softc * sc)634 wi_enable(struct wi_softc *sc)
635 {
636 /* Enable interrupts */
637 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
638
639 /* enable port */
640 wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
641 sc->sc_enabled = 1;
642 }
643
644 static int
wi_setup_locked(struct wi_softc * sc,int porttype,int mode,const uint8_t mac[IEEE80211_ADDR_LEN])645 wi_setup_locked(struct wi_softc *sc, int porttype, int mode,
646 const uint8_t mac[IEEE80211_ADDR_LEN])
647 {
648 int i;
649
650 wi_reset(sc);
651
652 wi_write_val(sc, WI_RID_PORTTYPE, porttype);
653 wi_write_val(sc, WI_RID_CREATE_IBSS, mode);
654 wi_write_val(sc, WI_RID_MAX_DATALEN, 2304);
655 /* XXX IEEE80211_BPF_NOACK wants 0 */
656 wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2);
657 if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
658 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */
659
660 wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN);
661
662 /* Allocate fids for the card */
663 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
664 for (i = 0; i < sc->sc_ntxbuf; i++) {
665 int error = wi_alloc_fid(sc, sc->sc_buflen,
666 &sc->sc_txd[i].d_fid);
667 if (error) {
668 device_printf(sc->sc_dev,
669 "tx buffer allocation failed (error %u)\n",
670 error);
671 return error;
672 }
673 sc->sc_txd[i].d_len = 0;
674 }
675 sc->sc_txcur = sc->sc_txnext = 0;
676
677 return 0;
678 }
679
680 void
wi_init(struct wi_softc * sc)681 wi_init(struct wi_softc *sc)
682 {
683 int wasenabled;
684
685 WI_LOCK_ASSERT(sc);
686
687 wasenabled = sc->sc_enabled;
688 if (wasenabled)
689 wi_stop(sc, 1);
690
691 if (wi_setup_locked(sc, sc->sc_porttype, 3,
692 sc->sc_ic.ic_macaddr) != 0) {
693 device_printf(sc->sc_dev, "interface not running\n");
694 wi_stop(sc, 1);
695 return;
696 }
697
698 sc->sc_flags |= WI_FLAGS_RUNNING;
699
700 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
701
702 wi_enable(sc); /* Enable desired port */
703 }
704
705 void
wi_stop(struct wi_softc * sc,int disable)706 wi_stop(struct wi_softc *sc, int disable)
707 {
708
709 WI_LOCK_ASSERT(sc);
710
711 if (sc->sc_enabled && !sc->wi_gone) {
712 CSR_WRITE_2(sc, WI_INT_EN, 0);
713 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
714 if (disable)
715 sc->sc_enabled = 0;
716 } else if (sc->wi_gone && disable) /* gone --> not enabled */
717 sc->sc_enabled = 0;
718
719 callout_stop(&sc->sc_watchdog);
720 sc->sc_tx_timer = 0;
721 sc->sc_false_syns = 0;
722
723 sc->sc_flags &= ~WI_FLAGS_RUNNING;
724 }
725
726 static void
wi_set_channel(struct ieee80211com * ic)727 wi_set_channel(struct ieee80211com *ic)
728 {
729 struct wi_softc *sc = ic->ic_softc;
730
731 DPRINTF(("%s: channel %d, %sscanning\n", __func__,
732 ieee80211_chan2ieee(ic, ic->ic_curchan),
733 ic->ic_flags & IEEE80211_F_SCAN ? "" : "!"));
734
735 WI_LOCK(sc);
736 wi_write_val(sc, WI_RID_OWN_CHNL,
737 ieee80211_chan2ieee(ic, ic->ic_curchan));
738 WI_UNLOCK(sc);
739 }
740
741 static void
wi_scan_start(struct ieee80211com * ic)742 wi_scan_start(struct ieee80211com *ic)
743 {
744 struct wi_softc *sc = ic->ic_softc;
745 struct ieee80211_scan_state *ss = ic->ic_scan;
746
747 DPRINTF(("%s\n", __func__));
748
749 WI_LOCK(sc);
750 /*
751 * Switch device to monitor mode.
752 */
753 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port);
754 if (sc->sc_firmware_type == WI_INTERSIL) {
755 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
756 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
757 }
758 /* force full dwell time to compensate for firmware overhead */
759 ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400);
760 WI_UNLOCK(sc);
761
762 }
763
764 static void
wi_scan_end(struct ieee80211com * ic)765 wi_scan_end(struct ieee80211com *ic)
766 {
767 struct wi_softc *sc = ic->ic_softc;
768
769 DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype));
770
771 WI_LOCK(sc);
772 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype);
773 if (sc->sc_firmware_type == WI_INTERSIL) {
774 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
775 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
776 }
777 WI_UNLOCK(sc);
778 }
779
780 static void
wi_recv_mgmt(struct ieee80211_node * ni,struct mbuf * m,int subtype,const struct ieee80211_rx_stats * rxs,int rssi,int nf)781 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
782 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf)
783 {
784 struct ieee80211vap *vap = ni->ni_vap;
785
786 switch (subtype) {
787 case IEEE80211_FC0_SUBTYPE_AUTH:
788 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
789 case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
790 /* NB: filter frames that trigger state changes */
791 return;
792 }
793 WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
794 }
795
796 static int
wi_newstate_sta(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)797 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
798 {
799 struct ieee80211com *ic = vap->iv_ic;
800 struct ieee80211_node *bss;
801 struct wi_softc *sc = ic->ic_softc;
802
803 DPRINTF(("%s: %s -> %s\n", __func__,
804 ieee80211_state_name[vap->iv_state],
805 ieee80211_state_name[nstate]));
806
807 if (nstate == IEEE80211_S_AUTH) {
808 WI_LOCK(sc);
809 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr);
810
811 if (vap->iv_flags & IEEE80211_F_PMGTON) {
812 wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
813 wi_write_val(sc, WI_RID_PM_ENABLED, 1);
814 }
815 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
816 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
817 wi_write_val(sc, WI_RID_FRAG_THRESH,
818 vap->iv_fragthreshold);
819 wi_write_txrate(sc, vap);
820
821 bss = vap->iv_bss;
822 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen);
823 wi_write_val(sc, WI_RID_OWN_CHNL,
824 ieee80211_chan2ieee(ic, bss->ni_chan));
825
826 /* Configure WEP. */
827 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
828 wi_write_wep(sc, vap);
829 else
830 sc->sc_encryption = 0;
831
832 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
833 (vap->iv_flags & IEEE80211_F_WPA)) {
834 wi_write_val(sc, WI_RID_WPA_HANDLING, 1);
835 if (vap->iv_appie_wpa != NULL)
836 wi_write_appie(sc, WI_RID_WPA_DATA,
837 vap->iv_appie_wpa);
838 }
839
840 wi_enable(sc); /* enable port */
841
842 /* Lucent firmware does not support the JOIN RID. */
843 if (sc->sc_firmware_type == WI_INTERSIL) {
844 struct wi_joinreq join;
845
846 memset(&join, 0, sizeof(join));
847 IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid);
848 join.wi_chan = htole16(
849 ieee80211_chan2ieee(ic, bss->ni_chan));
850 wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
851 }
852 WI_UNLOCK(sc);
853
854 /*
855 * NB: don't go through 802.11 layer, it'll send auth frame;
856 * instead we drive the state machine from the link status
857 * notification we get on association.
858 */
859 vap->iv_state = nstate;
860 return (0);
861 }
862 return WI_VAP(vap)->wv_newstate(vap, nstate, arg);
863 }
864
865 static int
wi_newstate_hostap(struct ieee80211vap * vap,enum ieee80211_state nstate,int arg)866 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
867 {
868 struct ieee80211com *ic = vap->iv_ic;
869 struct ieee80211_node *bss;
870 struct wi_softc *sc = ic->ic_softc;
871 int error;
872
873 DPRINTF(("%s: %s -> %s\n", __func__,
874 ieee80211_state_name[vap->iv_state],
875 ieee80211_state_name[nstate]));
876
877 error = WI_VAP(vap)->wv_newstate(vap, nstate, arg);
878 if (error == 0 && nstate == IEEE80211_S_RUN) {
879 WI_LOCK(sc);
880 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr);
881
882 bss = vap->iv_bss;
883 wi_write_ssid(sc, WI_RID_OWN_SSID,
884 bss->ni_essid, bss->ni_esslen);
885 wi_write_val(sc, WI_RID_OWN_CHNL,
886 ieee80211_chan2ieee(ic, bss->ni_chan));
887 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3);
888 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf);
889 wi_write_txrate(sc, vap);
890
891 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval);
892 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period);
893
894 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
895 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
896 wi_write_val(sc, WI_RID_FRAG_THRESH,
897 vap->iv_fragthreshold);
898
899 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) &&
900 (vap->iv_flags & IEEE80211_F_HIDESSID)) {
901 /*
902 * bit 0 means hide SSID in beacons,
903 * bit 1 means don't respond to bcast probe req
904 */
905 wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3);
906 }
907
908 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
909 (vap->iv_flags & IEEE80211_F_WPA) &&
910 vap->iv_appie_wpa != NULL)
911 wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa);
912
913 wi_write_val(sc, WI_RID_PROMISC, 0);
914
915 /* Configure WEP. */
916 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
917 wi_write_wep(sc, vap);
918 else
919 sc->sc_encryption = 0;
920
921 wi_enable(sc); /* enable port */
922 WI_UNLOCK(sc);
923 }
924 return error;
925 }
926
927 static int
wi_transmit(struct ieee80211com * ic,struct mbuf * m)928 wi_transmit(struct ieee80211com *ic, struct mbuf *m)
929 {
930 struct wi_softc *sc = ic->ic_softc;
931 int error;
932
933 WI_LOCK(sc);
934 if ((sc->sc_flags & WI_FLAGS_RUNNING) == 0) {
935 WI_UNLOCK(sc);
936 return (ENXIO);
937 }
938 error = mbufq_enqueue(&sc->sc_snd, m);
939 if (error) {
940 WI_UNLOCK(sc);
941 return (error);
942 }
943 wi_start(sc);
944 WI_UNLOCK(sc);
945 return (0);
946 }
947
948 static void
wi_start(struct wi_softc * sc)949 wi_start(struct wi_softc *sc)
950 {
951 struct ieee80211_node *ni;
952 struct ieee80211_frame *wh;
953 struct mbuf *m0;
954 struct ieee80211_key *k;
955 struct wi_frame frmhdr;
956 const struct llc *llc;
957 int cur;
958
959 WI_LOCK_ASSERT(sc);
960
961 if (sc->wi_gone)
962 return;
963
964 memset(&frmhdr, 0, sizeof(frmhdr));
965 cur = sc->sc_txnext;
966 while (sc->sc_txd[cur].d_len == 0 &&
967 (m0 = mbufq_dequeue(&sc->sc_snd)) != NULL) {
968 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
969
970 /* reconstruct 802.3 header */
971 wh = mtod(m0, struct ieee80211_frame *);
972 switch (wh->i_fc[1]) {
973 case IEEE80211_FC1_DIR_TODS:
974 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
975 wh->i_addr2);
976 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
977 wh->i_addr3);
978 break;
979 case IEEE80211_FC1_DIR_NODS:
980 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
981 wh->i_addr2);
982 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
983 wh->i_addr1);
984 break;
985 case IEEE80211_FC1_DIR_FROMDS:
986 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
987 wh->i_addr3);
988 IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
989 wh->i_addr1);
990 break;
991 }
992 llc = (const struct llc *)(
993 mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh));
994 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type;
995 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
996 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
997 k = ieee80211_crypto_encap(ni, m0);
998 if (k == NULL) {
999 ieee80211_free_node(ni);
1000 m_freem(m0);
1001 continue;
1002 }
1003 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
1004 }
1005
1006 if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
1007 sc->sc_tx_th.wt_rate = ni->ni_txrate;
1008 ieee80211_radiotap_tx(ni->ni_vap, m0);
1009 }
1010
1011 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
1012 &frmhdr.wi_whdr);
1013 m_adj(m0, sizeof(struct ieee80211_frame));
1014 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
1015 ieee80211_free_node(ni);
1016 if (wi_start_tx(sc, &frmhdr, m0))
1017 continue;
1018
1019 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
1020 }
1021 }
1022
1023 static int
wi_start_tx(struct wi_softc * sc,struct wi_frame * frmhdr,struct mbuf * m0)1024 wi_start_tx(struct wi_softc *sc, struct wi_frame *frmhdr, struct mbuf *m0)
1025 {
1026 int cur = sc->sc_txnext;
1027 int fid, off, error;
1028
1029 fid = sc->sc_txd[cur].d_fid;
1030 off = sizeof(*frmhdr);
1031 error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0
1032 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
1033 m_freem(m0);
1034 if (error) {
1035 #if defined(__DragonFly__)
1036 ++sc->sc_ic.ic_oerrors;
1037 #else
1038 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1039 #endif
1040 return -1;
1041 }
1042 sc->sc_txd[cur].d_len = off;
1043 if (sc->sc_txcur == cur) {
1044 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
1045 device_printf(sc->sc_dev, "xmit failed\n");
1046 sc->sc_txd[cur].d_len = 0;
1047 return -1;
1048 }
1049 sc->sc_tx_timer = 5;
1050 }
1051 return 0;
1052 }
1053
1054 static int
wi_raw_xmit(struct ieee80211_node * ni,struct mbuf * m0,const struct ieee80211_bpf_params * params)1055 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0,
1056 const struct ieee80211_bpf_params *params)
1057 {
1058 struct ieee80211com *ic = ni->ni_ic;
1059 struct ieee80211vap *vap = ni->ni_vap;
1060 struct wi_softc *sc = ic->ic_softc;
1061 struct ieee80211_key *k;
1062 struct ieee80211_frame *wh;
1063 struct wi_frame frmhdr;
1064 int cur;
1065 int rc = 0;
1066
1067 WI_LOCK(sc);
1068
1069 if (sc->wi_gone) {
1070 rc = ENETDOWN;
1071 goto out;
1072 }
1073 memset(&frmhdr, 0, sizeof(frmhdr));
1074 cur = sc->sc_txnext;
1075 if (sc->sc_txd[cur].d_len != 0) {
1076 rc = ENOBUFS;
1077 goto out;
1078 }
1079 m0->m_pkthdr.rcvif = NULL;
1080
1081 m_copydata(m0, 4, ETHER_ADDR_LEN * 2, &frmhdr.wi_ehdr);
1082 frmhdr.wi_ehdr.ether_type = 0;
1083 wh = mtod(m0, struct ieee80211_frame *);
1084
1085 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
1086 if (params && (params->ibp_flags & IEEE80211_BPF_NOACK))
1087 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY);
1088 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1089 (!params || (params->ibp_flags & IEEE80211_BPF_CRYPTO))) {
1090 k = ieee80211_crypto_encap(ni, m0);
1091 if (k == NULL) {
1092 rc = ENOMEM;
1093 goto out;
1094 }
1095 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
1096 }
1097 if (ieee80211_radiotap_active_vap(vap)) {
1098 sc->sc_tx_th.wt_rate = ni->ni_txrate;
1099 ieee80211_radiotap_tx(vap, m0);
1100 }
1101 m_copydata(m0, 0, sizeof(struct ieee80211_frame), &frmhdr.wi_whdr);
1102 m_adj(m0, sizeof(struct ieee80211_frame));
1103 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
1104 if (wi_start_tx(sc, &frmhdr, m0) < 0) {
1105 m0 = NULL;
1106 rc = EIO;
1107 goto out;
1108 }
1109 m0 = NULL;
1110 ieee80211_free_node(ni);
1111
1112 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
1113 out:
1114 WI_UNLOCK(sc);
1115
1116 if (m0 != NULL)
1117 m_freem(m0);
1118 return rc;
1119 }
1120
1121 static int
wi_reset(struct wi_softc * sc)1122 wi_reset(struct wi_softc *sc)
1123 {
1124 #define WI_INIT_TRIES 3
1125 int i, error = 0;
1126
1127 for (i = 0; i < WI_INIT_TRIES; i++) {
1128 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0);
1129 if (error == 0)
1130 break;
1131 DELAY(WI_DELAY * 1000);
1132 }
1133 sc->sc_reset = 1;
1134 if (i == WI_INIT_TRIES) {
1135 device_printf(sc->sc_dev, "reset failed\n");
1136 return error;
1137 }
1138
1139 CSR_WRITE_2(sc, WI_INT_EN, 0);
1140 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1141
1142 /* Calibrate timer. */
1143 wi_write_val(sc, WI_RID_TICK_TIME, 8);
1144
1145 return 0;
1146 #undef WI_INIT_TRIES
1147 }
1148
1149 static void
wi_watchdog(void * arg)1150 wi_watchdog(void *arg)
1151 {
1152 struct wi_softc *sc = arg;
1153
1154 WI_LOCK_ASSERT(sc);
1155
1156 if (!sc->sc_enabled)
1157 return;
1158
1159 if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
1160 device_printf(sc->sc_dev, "device timeout\n");
1161 #if defined(__DragonFly__)
1162 ++sc->sc_ic.ic_oerrors;
1163 #else
1164 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1165 #endif
1166 wi_init(sc);
1167 return;
1168 }
1169 callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
1170 }
1171
1172 static void
wi_parent(struct ieee80211com * ic)1173 wi_parent(struct ieee80211com *ic)
1174 {
1175 struct wi_softc *sc = ic->ic_softc;
1176 int startall = 0;
1177
1178 WI_LOCK(sc);
1179 /*
1180 * Can't do promisc and hostap at the same time. If all that's
1181 * changing is the promisc flag, try to short-circuit a call to
1182 * wi_init() by just setting PROMISC in the hardware.
1183 */
1184 if (ic->ic_nrunning > 0) {
1185 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1186 sc->sc_flags & WI_FLAGS_RUNNING) {
1187 if (ic->ic_promisc > 0 &&
1188 (sc->sc_flags & WI_FLAGS_PROMISC) == 0) {
1189 wi_write_val(sc, WI_RID_PROMISC, 1);
1190 sc->sc_flags |= WI_FLAGS_PROMISC;
1191 } else if (ic->ic_promisc == 0 &&
1192 (sc->sc_flags & WI_FLAGS_PROMISC) != 0) {
1193 wi_write_val(sc, WI_RID_PROMISC, 0);
1194 sc->sc_flags &= ~WI_FLAGS_PROMISC;
1195 } else {
1196 wi_init(sc);
1197 startall = 1;
1198 }
1199 } else {
1200 wi_init(sc);
1201 startall = 1;
1202 }
1203 } else if (sc->sc_flags & WI_FLAGS_RUNNING) {
1204 wi_stop(sc, 1);
1205 sc->wi_gone = 0;
1206 }
1207 WI_UNLOCK(sc);
1208 if (startall)
1209 ieee80211_start_all(ic);
1210 }
1211
1212 static void
wi_media_status(struct ifnet * ifp,struct ifmediareq * imr)1213 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1214 {
1215 struct ieee80211vap *vap = ifp->if_softc;
1216 struct ieee80211com *ic = vap->iv_ic;
1217 struct wi_softc *sc = ic->ic_softc;
1218 u_int16_t val;
1219 int rate, len;
1220
1221 len = sizeof(val);
1222 if (sc->sc_enabled &&
1223 wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1224 len == sizeof(val)) {
1225 /* convert to 802.11 rate */
1226 val = le16toh(val);
1227 rate = val * 2;
1228 if (sc->sc_firmware_type == WI_LUCENT) {
1229 if (rate == 10)
1230 rate = 11; /* 5.5Mbps */
1231 } else {
1232 if (rate == 4*2)
1233 rate = 11; /* 5.5Mbps */
1234 else if (rate == 8*2)
1235 rate = 22; /* 11Mbps */
1236 }
1237 vap->iv_bss->ni_txrate = rate;
1238 }
1239 ieee80211_media_status(ifp, imr);
1240 }
1241
1242 static void
wi_sync_bssid(struct wi_softc * sc,u_int8_t new_bssid[IEEE80211_ADDR_LEN])1243 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1244 {
1245 struct ieee80211com *ic = &sc->sc_ic;
1246 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1247 struct ieee80211_node *ni = vap->iv_bss;
1248
1249 if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1250 return;
1251
1252 DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
1253 DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
1254
1255 /* In promiscuous mode, the BSSID field is not a reliable
1256 * indicator of the firmware's BSSID. Damp spurious
1257 * change-of-BSSID indications.
1258 */
1259 if (ic->ic_promisc > 0 &&
1260 !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1261 WI_MAX_FALSE_SYNS))
1262 return;
1263
1264 sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1265 #if 0
1266 /*
1267 * XXX hack; we should create a new node with the new bssid
1268 * and replace the existing ic_bss with it but since we don't
1269 * process management frames to collect state we cheat by
1270 * reusing the existing node as we know wi_newstate will be
1271 * called and it will overwrite the node state.
1272 */
1273 ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1274 #endif
1275 }
1276
1277 static __noinline void
wi_rx_intr(struct wi_softc * sc)1278 wi_rx_intr(struct wi_softc *sc)
1279 {
1280 struct ieee80211com *ic = &sc->sc_ic;
1281 struct wi_frame frmhdr;
1282 struct mbuf *m;
1283 struct ieee80211_frame *wh;
1284 struct ieee80211_node *ni;
1285 int fid, len, off;
1286 u_int8_t dir;
1287 u_int16_t status;
1288 int8_t rssi, nf;
1289
1290 fid = CSR_READ_2(sc, WI_RX_FID);
1291
1292 /* First read in the frame header */
1293 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1294 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1295 #if defined(__DragonFly__)
1296 ++sc->sc_ic.ic_ierrors;
1297 #else
1298 counter_u64_add(ic->ic_ierrors, 1);
1299 #endif
1300 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1301 return;
1302 }
1303
1304 /*
1305 * Drop undecryptable or packets with receive errors here
1306 */
1307 status = le16toh(frmhdr.wi_status);
1308 if (status & WI_STAT_ERRSTAT) {
1309 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1310 #if defined(__DragonFly__)
1311 ++sc->sc_ic.ic_ierrors;
1312 #else
1313 counter_u64_add(ic->ic_ierrors, 1);
1314 #endif
1315 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
1316 return;
1317 }
1318
1319 len = le16toh(frmhdr.wi_dat_len);
1320 off = ALIGN(sizeof(struct ieee80211_frame));
1321
1322 /*
1323 * Sometimes the PRISM2.x returns bogusly large frames. Except
1324 * in monitor mode, just throw them away.
1325 */
1326 if (off + len > MCLBYTES) {
1327 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1328 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1329 #if defined(__DragonFly__)
1330 ++sc->sc_ic.ic_ierrors;
1331 #else
1332 counter_u64_add(ic->ic_ierrors, 1);
1333 #endif
1334 DPRINTF(("wi_rx_intr: oversized packet\n"));
1335 return;
1336 } else
1337 len = 0;
1338 }
1339
1340 if (off + len > MHLEN)
1341 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1342 else
1343 m = m_gethdr(M_NOWAIT, MT_DATA);
1344 if (m == NULL) {
1345 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1346 #if defined(__DragonFly__)
1347 ++sc->sc_ic.ic_ierrors;
1348 #else
1349 counter_u64_add(ic->ic_ierrors, 1);
1350 #endif
1351 DPRINTF(("wi_rx_intr: MGET failed\n"));
1352 return;
1353 }
1354 m->m_data += off - sizeof(struct ieee80211_frame);
1355 memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1356 wi_read_bap(sc, fid, sizeof(frmhdr),
1357 m->m_data + sizeof(struct ieee80211_frame), len);
1358 m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1359
1360 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1361
1362 rssi = frmhdr.wi_rx_signal;
1363 nf = frmhdr.wi_rx_silence;
1364 if (ieee80211_radiotap_active(ic)) {
1365 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th;
1366 uint32_t rstamp;
1367
1368 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1369 le16toh(frmhdr.wi_rx_tstamp1);
1370 tap->wr_tsf = htole64((uint64_t)rstamp);
1371 /* XXX replace divide by table */
1372 tap->wr_rate = frmhdr.wi_rx_rate / 5;
1373 tap->wr_flags = 0;
1374 if (frmhdr.wi_status & WI_STAT_PCF)
1375 tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1376 if (m->m_flags & M_WEP)
1377 tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP;
1378 tap->wr_antsignal = rssi;
1379 tap->wr_antnoise = nf;
1380 }
1381
1382 /* synchronize driver's BSSID with firmware's BSSID */
1383 wh = mtod(m, struct ieee80211_frame *);
1384 dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1385 if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1386 wi_sync_bssid(sc, wh->i_addr3);
1387
1388 WI_UNLOCK(sc);
1389
1390 ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
1391 if (ni != NULL) {
1392 (void) ieee80211_input(ni, m, rssi, nf);
1393 ieee80211_free_node(ni);
1394 } else
1395 (void) ieee80211_input_all(ic, m, rssi, nf);
1396
1397 WI_LOCK(sc);
1398 }
1399
1400 static __noinline void
wi_tx_ex_intr(struct wi_softc * sc)1401 wi_tx_ex_intr(struct wi_softc *sc)
1402 {
1403 struct wi_frame frmhdr;
1404 int fid;
1405
1406 fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1407 /* Read in the frame header */
1408 if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1409 u_int16_t status = le16toh(frmhdr.wi_status);
1410 /*
1411 * Spontaneous station disconnects appear as xmit
1412 * errors. Don't announce them and/or count them
1413 * as an output error.
1414 */
1415 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1416 if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1417 device_printf(sc->sc_dev, "tx failed");
1418 if (status & WI_TXSTAT_RET_ERR)
1419 kprintf(", retry limit exceeded");
1420 if (status & WI_TXSTAT_AGED_ERR)
1421 kprintf(", max transmit lifetime exceeded");
1422 if (status & WI_TXSTAT_DISCONNECT)
1423 kprintf(", port disconnected");
1424 if (status & WI_TXSTAT_FORM_ERR) {
1425 #if defined(__DragonFly__)
1426 kprintf(", invalid format (data len %u src %s)",
1427 le16toh(frmhdr.wi_dat_len),
1428 ether_sprintf(frmhdr.wi_ehdr.ether_shost));
1429 #else
1430 printf(", invalid format (data len %u src %6D)",
1431 le16toh(frmhdr.wi_dat_len),
1432 frmhdr.wi_ehdr.ether_shost, ":");
1433 #endif
1434 }
1435 if (status & ~0xf)
1436 kprintf(", status=0x%x", status);
1437 kprintf("\n");
1438 }
1439 #if defined(__DragonFly__)
1440 ++sc->sc_ic.ic_oerrors;
1441 #else
1442 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1443 #endif
1444 } else
1445 DPRINTF(("port disconnected\n"));
1446 } else
1447 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1448 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1449 }
1450
1451 static __noinline void
wi_tx_intr(struct wi_softc * sc)1452 wi_tx_intr(struct wi_softc *sc)
1453 {
1454 int fid, cur;
1455
1456 if (sc->wi_gone)
1457 return;
1458
1459 fid = CSR_READ_2(sc, WI_ALLOC_FID);
1460 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1461
1462 cur = sc->sc_txcur;
1463 if (sc->sc_txd[cur].d_fid != fid) {
1464 device_printf(sc->sc_dev, "bad alloc %x != %x, cur %d nxt %d\n",
1465 fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1466 return;
1467 }
1468 sc->sc_tx_timer = 0;
1469 sc->sc_txd[cur].d_len = 0;
1470 sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1471 if (sc->sc_txd[cur].d_len != 0) {
1472 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1473 0, 0)) {
1474 device_printf(sc->sc_dev, "xmit failed\n");
1475 sc->sc_txd[cur].d_len = 0;
1476 } else {
1477 sc->sc_tx_timer = 5;
1478 }
1479 }
1480 }
1481
1482 static __noinline void
wi_info_intr(struct wi_softc * sc)1483 wi_info_intr(struct wi_softc *sc)
1484 {
1485 struct ieee80211com *ic = &sc->sc_ic;
1486 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1487 int i, fid, len, off;
1488 u_int16_t ltbuf[2];
1489 u_int16_t stat;
1490 u_int32_t *ptr;
1491
1492 fid = CSR_READ_2(sc, WI_INFO_FID);
1493 wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1494
1495 switch (le16toh(ltbuf[1])) {
1496 case WI_INFO_LINK_STAT:
1497 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1498 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1499
1500 if (vap == NULL)
1501 goto finish;
1502
1503 switch (le16toh(stat)) {
1504 case WI_INFO_LINK_STAT_CONNECTED:
1505 if (vap->iv_state == IEEE80211_S_RUN &&
1506 vap->iv_opmode != IEEE80211_M_IBSS)
1507 break;
1508 /* fall thru... */
1509 case WI_INFO_LINK_STAT_AP_CHG:
1510 IEEE80211_LOCK(ic);
1511 vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */
1512 ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
1513 IEEE80211_UNLOCK(ic);
1514 break;
1515 case WI_INFO_LINK_STAT_AP_INR:
1516 break;
1517 case WI_INFO_LINK_STAT_DISCONNECTED:
1518 /* we dropped off the net; e.g. due to deauth/disassoc */
1519 IEEE80211_LOCK(ic);
1520 vap->iv_bss->ni_associd = 0;
1521 vap->iv_stats.is_rx_deauth++;
1522 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1523 IEEE80211_UNLOCK(ic);
1524 break;
1525 case WI_INFO_LINK_STAT_AP_OOR:
1526 /* XXX does this need to be per-vap? */
1527 ieee80211_beacon_miss(ic);
1528 break;
1529 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1530 if (vap->iv_opmode == IEEE80211_M_STA)
1531 ieee80211_new_state(vap, IEEE80211_S_SCAN,
1532 IEEE80211_SCAN_FAIL_TIMEOUT);
1533 break;
1534 }
1535 break;
1536 case WI_INFO_COUNTERS:
1537 /* some card versions have a larger stats structure */
1538 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1539 ptr = (u_int32_t *)&sc->sc_stats;
1540 off = sizeof(ltbuf);
1541 for (i = 0; i < len; i++, off += 2, ptr++) {
1542 wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1543 #ifdef WI_HERMES_STATS_WAR
1544 if (stat & 0xf000)
1545 stat = ~stat;
1546 #endif
1547 *ptr += stat;
1548 }
1549 break;
1550 default:
1551 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1552 le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1553 break;
1554 }
1555 finish:
1556 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1557 }
1558
1559 static int
wi_write_multi(struct wi_softc * sc)1560 wi_write_multi(struct wi_softc *sc)
1561 {
1562 struct ieee80211com *ic = &sc->sc_ic;
1563 struct ieee80211vap *vap;
1564 struct wi_mcast mlist;
1565 int n;
1566
1567 if (ic->ic_allmulti > 0 || ic->ic_promisc > 0) {
1568 allmulti:
1569 memset(&mlist, 0, sizeof(mlist));
1570 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1571 sizeof(mlist));
1572 }
1573
1574 n = 0;
1575 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
1576 struct ifnet *ifp;
1577 struct ifmultiaddr *ifma;
1578
1579 ifp = vap->iv_ifp;
1580 #if defined(__DragonFly__)
1581 /* nothing */
1582 #else
1583 if_maddr_rlock(ifp);
1584 #endif
1585 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1586 if (ifma->ifma_addr->sa_family != AF_LINK)
1587 continue;
1588 if (n >= 16)
1589 goto allmulti;
1590 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1591 (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1592 n++;
1593 }
1594 #if defined(__DragonFly__)
1595 /* nothing */
1596 #else
1597 if_maddr_runlock(ifp);
1598 #endif
1599 }
1600 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1601 IEEE80211_ADDR_LEN * n);
1602 }
1603
1604 static void
wi_update_mcast(struct ieee80211com * ic)1605 wi_update_mcast(struct ieee80211com *ic)
1606 {
1607
1608 wi_write_multi(ic->ic_softc);
1609 }
1610
1611 static void
wi_update_promisc(struct ieee80211com * ic)1612 wi_update_promisc(struct ieee80211com *ic)
1613 {
1614 struct wi_softc *sc = ic->ic_softc;
1615
1616 WI_LOCK(sc);
1617 /* XXX handle WEP special case handling? */
1618 wi_write_val(sc, WI_RID_PROMISC,
1619 (ic->ic_opmode == IEEE80211_M_MONITOR ||
1620 (ic->ic_promisc > 0)));
1621 WI_UNLOCK(sc);
1622 }
1623
1624 static void
wi_read_nicid(struct wi_softc * sc)1625 wi_read_nicid(struct wi_softc *sc)
1626 {
1627 struct wi_card_ident *id;
1628 char *p;
1629 int len;
1630 u_int16_t ver[4];
1631
1632 /* getting chip identity */
1633 memset(ver, 0, sizeof(ver));
1634 len = sizeof(ver);
1635 wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1636
1637 sc->sc_firmware_type = WI_NOTYPE;
1638 sc->sc_nic_id = le16toh(ver[0]);
1639 for (id = wi_card_ident; id->card_name != NULL; id++) {
1640 if (sc->sc_nic_id == id->card_id) {
1641 sc->sc_nic_name = id->card_name;
1642 sc->sc_firmware_type = id->firm_type;
1643 break;
1644 }
1645 }
1646 if (sc->sc_firmware_type == WI_NOTYPE) {
1647 if (sc->sc_nic_id & 0x8000) {
1648 sc->sc_firmware_type = WI_INTERSIL;
1649 sc->sc_nic_name = "Unknown Prism chip";
1650 } else {
1651 sc->sc_firmware_type = WI_LUCENT;
1652 sc->sc_nic_name = "Unknown Lucent chip";
1653 }
1654 }
1655 if (bootverbose)
1656 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name);
1657
1658 /* get primary firmware version (Only Prism chips) */
1659 if (sc->sc_firmware_type != WI_LUCENT) {
1660 memset(ver, 0, sizeof(ver));
1661 len = sizeof(ver);
1662 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1663 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1664 le16toh(ver[3]) * 100 + le16toh(ver[1]);
1665 }
1666
1667 /* get station firmware version */
1668 memset(ver, 0, sizeof(ver));
1669 len = sizeof(ver);
1670 wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1671 sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1672 le16toh(ver[3]) * 100 + le16toh(ver[1]);
1673 if (sc->sc_firmware_type == WI_INTERSIL &&
1674 (sc->sc_sta_firmware_ver == 10102 ||
1675 sc->sc_sta_firmware_ver == 20102)) {
1676 char ident[12];
1677 memset(ident, 0, sizeof(ident));
1678 len = sizeof(ident);
1679 /* value should be the format like "V2.00-11" */
1680 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1681 *(p = (char *)ident) >= 'A' &&
1682 p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1683 sc->sc_firmware_type = WI_SYMBOL;
1684 sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1685 (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1686 (p[6] - '0') * 10 + (p[7] - '0');
1687 }
1688 }
1689 if (bootverbose) {
1690 device_printf(sc->sc_dev, "%s Firmware: ",
1691 wi_firmware_names[sc->sc_firmware_type]);
1692 if (sc->sc_firmware_type != WI_LUCENT) /* XXX */
1693 kprintf("Primary (%u.%u.%u), ",
1694 sc->sc_pri_firmware_ver / 10000,
1695 (sc->sc_pri_firmware_ver % 10000) / 100,
1696 sc->sc_pri_firmware_ver % 100);
1697 kprintf("Station (%u.%u.%u)\n",
1698 sc->sc_sta_firmware_ver / 10000,
1699 (sc->sc_sta_firmware_ver % 10000) / 100,
1700 sc->sc_sta_firmware_ver % 100);
1701 }
1702 }
1703
1704 static int
wi_write_ssid(struct wi_softc * sc,int rid,u_int8_t * buf,int buflen)1705 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1706 {
1707 struct wi_ssid ssid;
1708
1709 if (buflen > IEEE80211_NWID_LEN)
1710 return ENOBUFS;
1711 memset(&ssid, 0, sizeof(ssid));
1712 ssid.wi_len = htole16(buflen);
1713 memcpy(ssid.wi_ssid, buf, buflen);
1714 return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1715 }
1716
1717 static int
wi_write_txrate(struct wi_softc * sc,struct ieee80211vap * vap)1718 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap)
1719 {
1720 static const uint16_t lucent_rates[12] = {
1721 [ 0] = 3, /* auto */
1722 [ 1] = 1, /* 1Mb/s */
1723 [ 2] = 2, /* 2Mb/s */
1724 [ 5] = 4, /* 5.5Mb/s */
1725 [11] = 5 /* 11Mb/s */
1726 };
1727 static const uint16_t intersil_rates[12] = {
1728 [ 0] = 0xf, /* auto */
1729 [ 1] = 0, /* 1Mb/s */
1730 [ 2] = 1, /* 2Mb/s */
1731 [ 5] = 2, /* 5.5Mb/s */
1732 [11] = 3, /* 11Mb/s */
1733 };
1734 const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ?
1735 lucent_rates : intersil_rates;
1736 struct ieee80211com *ic = vap->iv_ic;
1737 const struct ieee80211_txparam *tp;
1738
1739 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
1740 return wi_write_val(sc, WI_RID_TX_RATE,
1741 (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
1742 rates[0] : rates[tp->ucastrate / 2]));
1743 }
1744
1745 static int
wi_write_wep(struct wi_softc * sc,struct ieee80211vap * vap)1746 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap)
1747 {
1748 int error = 0;
1749 int i, keylen;
1750 u_int16_t val;
1751 struct wi_key wkey[IEEE80211_WEP_NKID];
1752
1753 switch (sc->sc_firmware_type) {
1754 case WI_LUCENT:
1755 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
1756 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
1757 if (error)
1758 break;
1759 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
1760 break;
1761 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey);
1762 if (error)
1763 break;
1764 memset(wkey, 0, sizeof(wkey));
1765 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
1766 keylen = vap->iv_nw_keys[i].wk_keylen;
1767 wkey[i].wi_keylen = htole16(keylen);
1768 memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key,
1769 keylen);
1770 }
1771 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
1772 wkey, sizeof(wkey));
1773 sc->sc_encryption = 0;
1774 break;
1775
1776 case WI_INTERSIL:
1777 val = HOST_ENCRYPT | HOST_DECRYPT;
1778 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
1779 /*
1780 * ONLY HWB3163 EVAL-CARD Firmware version
1781 * less than 0.8 variant2
1782 *
1783 * If promiscuous mode disable, Prism2 chip
1784 * does not work with WEP .
1785 * It is under investigation for details.
1786 * (ichiro@netbsd.org)
1787 */
1788 if (sc->sc_sta_firmware_ver < 802 ) {
1789 /* firm ver < 0.8 variant 2 */
1790 wi_write_val(sc, WI_RID_PROMISC, 1);
1791 }
1792 wi_write_val(sc, WI_RID_CNFAUTHMODE,
1793 vap->iv_bss->ni_authmode);
1794 val |= PRIVACY_INVOKED;
1795 } else {
1796 wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN);
1797 }
1798 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
1799 if (error)
1800 break;
1801 sc->sc_encryption = val;
1802 if ((val & PRIVACY_INVOKED) == 0)
1803 break;
1804 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey);
1805 break;
1806 }
1807 return error;
1808 }
1809
1810 static int
wi_cmd(struct wi_softc * sc,int cmd,int val0,int val1,int val2)1811 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
1812 {
1813 int i, s = 0;
1814
1815 if (sc->wi_gone)
1816 return (ENODEV);
1817
1818 /* wait for the busy bit to clear */
1819 for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */
1820 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
1821 break;
1822 DELAY(1*1000); /* 1ms */
1823 }
1824 if (i == 0) {
1825 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n",
1826 __func__, cmd);
1827 sc->wi_gone = 1;
1828 return(ETIMEDOUT);
1829 }
1830
1831 CSR_WRITE_2(sc, WI_PARAM0, val0);
1832 CSR_WRITE_2(sc, WI_PARAM1, val1);
1833 CSR_WRITE_2(sc, WI_PARAM2, val2);
1834 CSR_WRITE_2(sc, WI_COMMAND, cmd);
1835
1836 if (cmd == WI_CMD_INI) {
1837 /* XXX: should sleep here. */
1838 DELAY(100*1000); /* 100ms delay for init */
1839 }
1840 for (i = 0; i < WI_TIMEOUT; i++) {
1841 /*
1842 * Wait for 'command complete' bit to be
1843 * set in the event status register.
1844 */
1845 s = CSR_READ_2(sc, WI_EVENT_STAT);
1846 if (s & WI_EV_CMD) {
1847 /* Ack the event and read result code. */
1848 s = CSR_READ_2(sc, WI_STATUS);
1849 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
1850 if (s & WI_STAT_CMD_RESULT) {
1851 return(EIO);
1852 }
1853 break;
1854 }
1855 DELAY(WI_DELAY);
1856 }
1857
1858 if (i == WI_TIMEOUT) {
1859 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; "
1860 "event status 0x%04x\n", __func__, cmd, s);
1861 if (s == 0xffff)
1862 sc->wi_gone = 1;
1863 return(ETIMEDOUT);
1864 }
1865 return (0);
1866 }
1867
1868 static int
wi_seek_bap(struct wi_softc * sc,int id,int off)1869 wi_seek_bap(struct wi_softc *sc, int id, int off)
1870 {
1871 int i, status;
1872
1873 CSR_WRITE_2(sc, WI_SEL0, id);
1874 CSR_WRITE_2(sc, WI_OFF0, off);
1875
1876 for (i = 0; ; i++) {
1877 status = CSR_READ_2(sc, WI_OFF0);
1878 if ((status & WI_OFF_BUSY) == 0)
1879 break;
1880 if (i == WI_TIMEOUT) {
1881 device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n",
1882 __func__, id, off);
1883 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
1884 if (status == 0xffff)
1885 sc->wi_gone = 1;
1886 return ETIMEDOUT;
1887 }
1888 DELAY(1);
1889 }
1890 if (status & WI_OFF_ERR) {
1891 device_printf(sc->sc_dev, "%s: error, id %x off %x\n",
1892 __func__, id, off);
1893 sc->sc_bap_off = WI_OFF_ERR; /* invalidate */
1894 return EIO;
1895 }
1896 sc->sc_bap_id = id;
1897 sc->sc_bap_off = off;
1898 return 0;
1899 }
1900
1901 static int
wi_read_bap(struct wi_softc * sc,int id,int off,void * buf,int buflen)1902 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
1903 {
1904 int error, cnt;
1905
1906 if (buflen == 0)
1907 return 0;
1908 if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
1909 if ((error = wi_seek_bap(sc, id, off)) != 0)
1910 return error;
1911 }
1912 cnt = (buflen + 1) / 2;
1913 CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt);
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,const void * buf,int buflen)1919 wi_write_bap(struct wi_softc *sc, int id, int off, const void *buf, int buflen)
1920 {
1921 int error, cnt;
1922
1923 if (buflen == 0)
1924 return 0;
1925
1926 if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
1927 if ((error = wi_seek_bap(sc, id, off)) != 0)
1928 return error;
1929 }
1930 cnt = (buflen + 1) / 2;
1931 CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (const uint16_t *)buf, cnt);
1932 sc->sc_bap_off += cnt * 2;
1933
1934 return 0;
1935 }
1936
1937 static int
wi_mwrite_bap(struct wi_softc * sc,int id,int off,struct mbuf * m0,int totlen)1938 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
1939 {
1940 int error, len;
1941 struct mbuf *m;
1942
1943 for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
1944 if (m->m_len == 0)
1945 continue;
1946
1947 len = min(m->m_len, totlen);
1948
1949 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
1950 m_copydata(m, 0, totlen, &sc->sc_txbuf);
1951 return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
1952 totlen);
1953 }
1954
1955 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
1956 return error;
1957
1958 off += m->m_len;
1959 totlen -= len;
1960 }
1961 return 0;
1962 }
1963
1964 static int
wi_alloc_fid(struct wi_softc * sc,int len,int * idp)1965 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
1966 {
1967 int i;
1968
1969 if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
1970 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n",
1971 __func__, len);
1972 return ENOMEM;
1973 }
1974
1975 for (i = 0; i < WI_TIMEOUT; i++) {
1976 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
1977 break;
1978 DELAY(1);
1979 }
1980 if (i == WI_TIMEOUT) {
1981 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__);
1982 return ETIMEDOUT;
1983 }
1984 *idp = CSR_READ_2(sc, WI_ALLOC_FID);
1985 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1986 return 0;
1987 }
1988
1989 static int
wi_read_rid(struct wi_softc * sc,int rid,void * buf,int * buflenp)1990 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
1991 {
1992 int error, len;
1993 u_int16_t ltbuf[2];
1994
1995 /* Tell the NIC to enter record read mode. */
1996 error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
1997 if (error)
1998 return error;
1999
2000 error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2001 if (error)
2002 return error;
2003
2004 if (le16toh(ltbuf[1]) != rid) {
2005 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
2006 rid, le16toh(ltbuf[1]));
2007 return EIO;
2008 }
2009 len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */
2010 if (*buflenp < len) {
2011 device_printf(sc->sc_dev, "record buffer is too small, "
2012 "rid=%x, size=%d, len=%d\n",
2013 rid, *buflenp, len);
2014 return ENOSPC;
2015 }
2016 *buflenp = len;
2017 return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2018 }
2019
2020 static int
wi_write_rid(struct wi_softc * sc,int rid,const void * buf,int buflen)2021 wi_write_rid(struct wi_softc *sc, int rid, const void *buf, int buflen)
2022 {
2023 int error;
2024 u_int16_t ltbuf[2];
2025
2026 ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */
2027 ltbuf[1] = htole16(rid);
2028
2029 error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2030 if (error) {
2031 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n",
2032 __func__, rid);
2033 return error;
2034 }
2035 error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2036 if (error) {
2037 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n",
2038 __func__, rid);
2039 return error;
2040 }
2041
2042 return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2043 }
2044
2045 static int
wi_write_appie(struct wi_softc * sc,int rid,const struct ieee80211_appie * ie)2046 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie)
2047 {
2048 /* NB: 42 bytes is probably ok to have on the stack */
2049 char buf[sizeof(uint16_t) + 40];
2050
2051 if (ie->ie_len > 40)
2052 return EINVAL;
2053 /* NB: firmware requires 16-bit ie length before ie data */
2054 *(uint16_t *) buf = htole16(ie->ie_len);
2055 memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len);
2056 return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t));
2057 }
2058
2059 int
wi_alloc(device_t dev,int rid)2060 wi_alloc(device_t dev, int rid)
2061 {
2062 struct wi_softc *sc = device_get_softc(dev);
2063
2064 if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2065 sc->iobase_rid = rid;
2066 #if defined(__DragonFly__)
2067 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2068 &sc->iobase_rid, 0, ~0, (1 << 6),
2069 rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2070 #else
2071 sc->iobase = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
2072 &sc->iobase_rid, (1 << 6),
2073 rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2074 #endif
2075 if (sc->iobase == NULL) {
2076 device_printf(dev, "No I/O space?!\n");
2077 return ENXIO;
2078 }
2079
2080 sc->wi_io_addr = rman_get_start(sc->iobase);
2081 sc->wi_btag = rman_get_bustag(sc->iobase);
2082 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2083 } else {
2084 sc->mem_rid = rid;
2085 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2086 &sc->mem_rid, RF_ACTIVE);
2087 if (sc->mem == NULL) {
2088 device_printf(dev, "No Mem space on prism2.5?\n");
2089 return ENXIO;
2090 }
2091
2092 sc->wi_btag = rman_get_bustag(sc->mem);
2093 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2094 }
2095
2096 sc->irq_rid = 0;
2097 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2098 RF_ACTIVE |
2099 ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2100 if (sc->irq == NULL) {
2101 wi_free(dev);
2102 device_printf(dev, "No irq?!\n");
2103 return ENXIO;
2104 }
2105
2106 sc->sc_dev = dev;
2107 sc->sc_unit = device_get_unit(dev);
2108 return 0;
2109 }
2110
2111 void
wi_free(device_t dev)2112 wi_free(device_t dev)
2113 {
2114 struct wi_softc *sc = device_get_softc(dev);
2115
2116 if (sc->iobase != NULL) {
2117 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2118 sc->iobase = NULL;
2119 }
2120 if (sc->irq != NULL) {
2121 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2122 sc->irq = NULL;
2123 }
2124 if (sc->mem != NULL) {
2125 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2126 sc->mem = NULL;
2127 }
2128 }
2129