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