1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
2
3 /*
4 * Copyright (c) 2014 genua mbh <info@genua.de>
5 * Copyright (c) 2014 Fixup Software Ltd.
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 /*-
21 * Based on BSD-licensed source modules in the Linux iwlwifi driver,
22 * which were used as the reference documentation for this implementation.
23 *
24 * Driver version we are currently based off of is
25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
26 *
27 ***********************************************************************
28 *
29 * This file is provided under a dual BSD/GPLv2 license. When using or
30 * redistributing this file, you may do so under either license.
31 *
32 * GPL LICENSE SUMMARY
33 *
34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
35 *
36 * This program is free software; you can redistribute it and/or modify
37 * it under the terms of version 2 of the GNU General Public License as
38 * published by the Free Software Foundation.
39 *
40 * This program is distributed in the hope that it will be useful, but
41 * WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
43 * General Public License for more details.
44 *
45 * You should have received a copy of the GNU General Public License
46 * along with this program; if not, write to the Free Software
47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
48 * USA
49 *
50 * The full GNU General Public License is included in this distribution
51 * in the file called COPYING.
52 *
53 * Contact Information:
54 * Intel Linux Wireless <ilw@linux.intel.com>
55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
56 *
57 *
58 * BSD LICENSE
59 *
60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
61 * All rights reserved.
62 *
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
65 * are met:
66 *
67 * * Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
69 * * Redistributions in binary form must reproduce the above copyright
70 * notice, this list of conditions and the following disclaimer in
71 * the documentation and/or other materials provided with the
72 * distribution.
73 * * Neither the name Intel Corporation nor the names of its
74 * contributors may be used to endorse or promote products derived
75 * from this software without specific prior written permission.
76 *
77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
78 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
79 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
80 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
81 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
82 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
83 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
87 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
88 */
89
90 /*-
91 * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
92 *
93 * Permission to use, copy, modify, and distribute this software for any
94 * purpose with or without fee is hereby granted, provided that the above
95 * copyright notice and this permission notice appear in all copies.
96 *
97 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
98 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
99 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
100 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
101 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
102 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
103 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
104 */
105 #include <sys/cdefs.h>
106 #include "opt_wlan.h"
107 #include "opt_iwm.h"
108
109 #include <sys/param.h>
110 #include <sys/bus.h>
111 #include <sys/conf.h>
112 #include <sys/endian.h>
113 #include <sys/firmware.h>
114 #include <sys/kernel.h>
115 #include <sys/malloc.h>
116 #include <sys/mbuf.h>
117 #include <sys/mutex.h>
118 #include <sys/module.h>
119 #include <sys/proc.h>
120 #include <sys/rman.h>
121 #include <sys/socket.h>
122 #include <sys/sockio.h>
123 #include <sys/sysctl.h>
124 #include <sys/linker.h>
125
126 #include <machine/bus.h>
127 #include <machine/endian.h>
128 #include <machine/resource.h>
129
130 #include <dev/pci/pcivar.h>
131 #include <dev/pci/pcireg.h>
132
133 #include <net/bpf.h>
134
135 #include <net/if.h>
136 #include <net/if_var.h>
137 #include <net/if_arp.h>
138 #include <net/if_dl.h>
139 #include <net/if_media.h>
140 #include <net/if_types.h>
141
142 #include <netinet/in.h>
143 #include <netinet/in_systm.h>
144 #include <netinet/if_ether.h>
145 #include <netinet/ip.h>
146
147 #include <net80211/ieee80211_var.h>
148 #include <net80211/ieee80211_regdomain.h>
149 #include <net80211/ieee80211_ratectl.h>
150 #include <net80211/ieee80211_radiotap.h>
151
152 #include <dev/iwm/if_iwmreg.h>
153 #include <dev/iwm/if_iwmvar.h>
154 #include <dev/iwm/if_iwm_debug.h>
155 #include <dev/iwm/if_iwm_util.h>
156 #include <dev/iwm/if_iwm_mac_ctxt.h>
157
158 /*
159 * BEGIN mvm/mac-ctxt.c
160 */
161
162 const uint8_t iwm_ac_to_tx_fifo[] = {
163 IWM_TX_FIFO_BE,
164 IWM_TX_FIFO_BK,
165 IWM_TX_FIFO_VI,
166 IWM_TX_FIFO_VO,
167 };
168
169 static void
iwm_ack_rates(struct iwm_softc * sc,int is2ghz,int * cck_rates,int * ofdm_rates,struct iwm_node * in)170 iwm_ack_rates(struct iwm_softc *sc, int is2ghz,
171 int *cck_rates, int *ofdm_rates, struct iwm_node *in)
172 {
173 int lowest_present_ofdm = 100;
174 int lowest_present_cck = 100;
175 uint8_t cck = 0;
176 uint8_t ofdm = 0;
177 int i;
178 struct ieee80211_rateset *rs = &in->in_ni.ni_rates;
179
180 if (is2ghz) {
181 for (i = IWM_FIRST_CCK_RATE; i <= IWM_LAST_CCK_RATE; i++) {
182 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0)
183 continue;
184 cck |= (1 << i);
185 if (lowest_present_cck > i)
186 lowest_present_cck = i;
187 }
188 }
189 for (i = IWM_FIRST_OFDM_RATE; i <= IWM_LAST_NON_HT_RATE; i++) {
190 if ((iwm_ridx2rate(rs, i) & IEEE80211_RATE_BASIC) == 0)
191 continue;
192 ofdm |= (1 << (i - IWM_FIRST_OFDM_RATE));
193 if (lowest_present_ofdm > i)
194 lowest_present_ofdm = i;
195 }
196
197 /*
198 * Now we've got the basic rates as bitmaps in the ofdm and cck
199 * variables. This isn't sufficient though, as there might not
200 * be all the right rates in the bitmap. E.g. if the only basic
201 * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps
202 * and 6 Mbps because the 802.11-2007 standard says in 9.6:
203 *
204 * [...] a STA responding to a received frame shall transmit
205 * its Control Response frame [...] at the highest rate in the
206 * BSSBasicRateSet parameter that is less than or equal to the
207 * rate of the immediately previous frame in the frame exchange
208 * sequence ([...]) and that is of the same modulation class
209 * ([...]) as the received frame. If no rate contained in the
210 * BSSBasicRateSet parameter meets these conditions, then the
211 * control frame sent in response to a received frame shall be
212 * transmitted at the highest mandatory rate of the PHY that is
213 * less than or equal to the rate of the received frame, and
214 * that is of the same modulation class as the received frame.
215 *
216 * As a consequence, we need to add all mandatory rates that are
217 * lower than all of the basic rates to these bitmaps.
218 */
219
220 if (IWM_RATE_24M_INDEX < lowest_present_ofdm)
221 ofdm |= IWM_RATE_BIT_MSK(24) >> IWM_FIRST_OFDM_RATE;
222 if (IWM_RATE_12M_INDEX < lowest_present_ofdm)
223 ofdm |= IWM_RATE_BIT_MSK(12) >> IWM_FIRST_OFDM_RATE;
224 /* 6M already there or needed so always add */
225 ofdm |= IWM_RATE_BIT_MSK(6) >> IWM_FIRST_OFDM_RATE;
226
227 /*
228 * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP.
229 * Note, however:
230 * - if no CCK rates are basic, it must be ERP since there must
231 * be some basic rates at all, so they're OFDM => ERP PHY
232 * (or we're in 5 GHz, and the cck bitmap will never be used)
233 * - if 11M is a basic rate, it must be ERP as well, so add 5.5M
234 * - if 5.5M is basic, 1M and 2M are mandatory
235 * - if 2M is basic, 1M is mandatory
236 * - if 1M is basic, that's the only valid ACK rate.
237 * As a consequence, it's not as complicated as it sounds, just add
238 * any lower rates to the ACK rate bitmap.
239 */
240 if (IWM_RATE_11M_INDEX < lowest_present_cck)
241 cck |= IWM_RATE_BIT_MSK(11) >> IWM_FIRST_CCK_RATE;
242 if (IWM_RATE_5M_INDEX < lowest_present_cck)
243 cck |= IWM_RATE_BIT_MSK(5) >> IWM_FIRST_CCK_RATE;
244 if (IWM_RATE_2M_INDEX < lowest_present_cck)
245 cck |= IWM_RATE_BIT_MSK(2) >> IWM_FIRST_CCK_RATE;
246 /* 1M already there or needed so always add */
247 cck |= IWM_RATE_BIT_MSK(1) >> IWM_FIRST_CCK_RATE;
248
249 *cck_rates = cck;
250 *ofdm_rates = ofdm;
251 }
252
253 static void
iwm_mac_ctxt_cmd_common(struct iwm_softc * sc,struct iwm_node * in,struct iwm_mac_ctx_cmd * cmd,uint32_t action)254 iwm_mac_ctxt_cmd_common(struct iwm_softc *sc, struct iwm_node *in,
255 struct iwm_mac_ctx_cmd *cmd, uint32_t action)
256 {
257 struct ieee80211com *ic = &sc->sc_ic;
258 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
259 struct ieee80211_node *ni = vap->iv_bss;
260 struct iwm_vap *ivp = IWM_VAP(vap);
261 int cck_ack_rates, ofdm_ack_rates;
262 int i;
263 int is2ghz;
264
265 /*
266 * id is the MAC address ID - something to do with MAC filtering.
267 * color - not sure.
268 *
269 * These are both functions of the vap, not of the node.
270 * So, for now, hard-code both to 0 (default).
271 */
272 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id,
273 ivp->color));
274 cmd->action = htole32(action);
275
276 cmd->mac_type = htole32(IWM_FW_MAC_TYPE_BSS_STA);
277
278 /*
279 * The TSF ID is one of four TSF tracking resources in the firmware.
280 * Read the iwlwifi/mvm code for more details.
281 *
282 * For now, just hard-code it to TSF tracking ID 0; we only support
283 * a single STA mode VAP.
284 *
285 * It's per-vap, not per-node.
286 */
287 cmd->tsf_id = htole32(IWM_DEFAULT_TSFID);
288
289 IEEE80211_ADDR_COPY(cmd->node_addr, vap->iv_myaddr);
290
291 /*
292 * XXX should we error out if in_assoc is 1 and ni == NULL?
293 */
294 #if 0
295 if (in->in_assoc) {
296 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid);
297 } else {
298 /* eth broadcast address */
299 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr);
300 }
301 #else
302 /*
303 * XXX This workaround makes the firmware behave more correctly once
304 * we are associated, regularly giving us statistics notifications,
305 * as well as signaling missed beacons to us.
306 * Since we only call iwm_mac_ctxt_add() and
307 * iwm_mac_ctxt_changed() when already authenticating or
308 * associating, ni->ni_bssid should always make sense here.
309 */
310 if (ivp->iv_auth) {
311 IEEE80211_ADDR_COPY(cmd->bssid_addr, ni->ni_bssid);
312 } else {
313 /* XXX Or maybe all zeroes address? */
314 IEEE80211_ADDR_COPY(cmd->bssid_addr, ieee80211broadcastaddr);
315 }
316 #endif
317
318 /*
319 * Default to 2ghz if no node information is given.
320 */
321 if (in && in->in_ni.ni_chan != IEEE80211_CHAN_ANYC) {
322 is2ghz = !! IEEE80211_IS_CHAN_2GHZ(in->in_ni.ni_chan);
323 } else {
324 is2ghz = 1;
325 }
326 iwm_ack_rates(sc, is2ghz, &cck_ack_rates, &ofdm_ack_rates, in);
327 cmd->cck_rates = htole32(cck_ack_rates);
328 cmd->ofdm_rates = htole32(ofdm_ack_rates);
329
330 cmd->cck_short_preamble
331 = htole32((ic->ic_flags & IEEE80211_F_SHPREAMBLE)
332 ? IWM_MAC_FLG_SHORT_PREAMBLE : 0);
333 cmd->short_slot
334 = htole32((ic->ic_flags & IEEE80211_F_SHSLOT)
335 ? IWM_MAC_FLG_SHORT_SLOT : 0);
336
337 /*
338 * XXX TODO: if we're doing QOS..
339 * cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA)
340 */
341
342 for (i = 0; i < WME_NUM_AC; i++) {
343 uint8_t txf = iwm_ac_to_tx_fifo[i];
344
345 cmd->ac[txf].cw_min = htole16(ivp->queue_params[i].cw_min);
346 cmd->ac[txf].cw_max = htole16(ivp->queue_params[i].cw_max);
347 cmd->ac[txf].edca_txop =
348 htole16(ivp->queue_params[i].edca_txop);
349 cmd->ac[txf].aifsn = ivp->queue_params[i].aifsn;
350 cmd->ac[txf].fifos_mask = (1 << txf);
351 }
352
353 if (ivp->have_wme)
354 cmd->qos_flags |= htole32(IWM_MAC_QOS_FLG_UPDATE_EDCA);
355
356 if (ic->ic_flags & IEEE80211_F_USEPROT)
357 cmd->protection_flags |= htole32(IWM_MAC_PROT_FLG_TGG_PROTECT);
358
359 cmd->filter_flags = htole32(IWM_MAC_FILTER_ACCEPT_GRP);
360 }
361
362 static int
iwm_mac_ctxt_send_cmd(struct iwm_softc * sc,struct iwm_mac_ctx_cmd * cmd)363 iwm_mac_ctxt_send_cmd(struct iwm_softc *sc, struct iwm_mac_ctx_cmd *cmd)
364 {
365 int ret = iwm_send_cmd_pdu(sc, IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC,
366 sizeof(*cmd), cmd);
367 if (ret)
368 device_printf(sc->sc_dev,
369 "%s: Failed to send MAC context (action:%d): %d\n",
370 __func__, le32toh(cmd->action), ret);
371 return ret;
372 }
373
374 /*
375 * Fill the specific data for mac context of type station or p2p client
376 */
377 static void
iwm_mac_ctxt_cmd_fill_sta(struct iwm_softc * sc,struct iwm_node * in,struct iwm_mac_data_sta * ctxt_sta,int force_assoc_off)378 iwm_mac_ctxt_cmd_fill_sta(struct iwm_softc *sc, struct iwm_node *in,
379 struct iwm_mac_data_sta *ctxt_sta, int force_assoc_off)
380 {
381 struct ieee80211_node *ni = &in->in_ni;
382 unsigned dtim_period, dtim_count;
383 struct ieee80211com *ic = &sc->sc_ic;
384 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
385
386 /* will this work? */
387 dtim_period = vap->iv_dtim_period;
388 dtim_count = vap->iv_dtim_count;
389 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD,
390 "%s: force_assoc_off=%d\n", __func__, force_assoc_off);
391 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD,
392 "DTIM: period=%d count=%d\n", dtim_period, dtim_count);
393 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD,
394 "BEACON: tsf: %llu, ni_intval=%d\n",
395 (unsigned long long) le64toh(ni->ni_tstamp.tsf),
396 ni->ni_intval);
397
398 /* We need the dtim_period to set the MAC as associated */
399 if (in->in_assoc && dtim_period && !force_assoc_off) {
400 uint64_t tsf;
401 uint32_t dtim_offs;
402
403 /*
404 * The DTIM count counts down, so when it is N that means N
405 * more beacon intervals happen until the DTIM TBTT. Therefore
406 * add this to the current time. If that ends up being in the
407 * future, the firmware will handle it.
408 *
409 * Also note that the system_timestamp (which we get here as
410 * "sync_device_ts") and TSF timestamp aren't at exactly the
411 * same offset in the frame -- the TSF is at the first symbol
412 * of the TSF, the system timestamp is at signal acquisition
413 * time. This means there's an offset between them of at most
414 * a few hundred microseconds (24 * 8 bits + PLCP time gives
415 * 384us in the longest case), this is currently not relevant
416 * as the firmware wakes up around 2ms before the TBTT.
417 */
418 dtim_offs = dtim_count * ni->ni_intval;
419 /* convert TU to usecs */
420 dtim_offs *= 1024;
421
422 /*
423 * net80211: TSF is in 802.11 order, so convert up to local
424 * ordering before we manipulate things.
425 */
426 tsf = le64toh(ni->ni_tstamp.tsf);
427
428 ctxt_sta->dtim_tsf = htole64(tsf + dtim_offs);
429 ctxt_sta->dtim_time = htole32(tsf + dtim_offs);
430
431 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_BEACON | IWM_DEBUG_CMD,
432 "DTIM TBTT is 0x%llx/0x%x, offset %d\n",
433 (long long)le64toh(ctxt_sta->dtim_tsf),
434 le32toh(ctxt_sta->dtim_time), dtim_offs);
435
436 ctxt_sta->is_assoc = htole32(1);
437 } else {
438 ctxt_sta->is_assoc = htole32(0);
439 }
440
441 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON,
442 "%s: ni_intval: %d, bi_reciprocal: %d, dtim_interval: %d, dtim_reciprocal: %d\n",
443 __func__,
444 ni->ni_intval,
445 iwm_reciprocal(ni->ni_intval),
446 ni->ni_intval * dtim_period,
447 iwm_reciprocal(ni->ni_intval * dtim_period));
448
449 ctxt_sta->bi = htole32(ni->ni_intval);
450 ctxt_sta->bi_reciprocal = htole32(iwm_reciprocal(ni->ni_intval));
451 ctxt_sta->dtim_interval = htole32(ni->ni_intval * dtim_period);
452 ctxt_sta->dtim_reciprocal =
453 htole32(iwm_reciprocal(ni->ni_intval * dtim_period));
454
455 /* 10 = CONN_MAX_LISTEN_INTERVAL */
456 ctxt_sta->listen_interval = htole32(10);
457 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD | IWM_DEBUG_BEACON,
458 "%s: associd=%d\n", __func__, IEEE80211_AID(ni->ni_associd));
459 ctxt_sta->assoc_id = htole32(IEEE80211_AID(ni->ni_associd));
460 }
461
462 static int
iwm_mac_ctxt_cmd_station(struct iwm_softc * sc,struct ieee80211vap * vap,uint32_t action)463 iwm_mac_ctxt_cmd_station(struct iwm_softc *sc, struct ieee80211vap *vap,
464 uint32_t action)
465 {
466 struct ieee80211_node *ni = vap->iv_bss;
467 struct iwm_node *in = IWM_NODE(ni);
468 struct iwm_mac_ctx_cmd cmd = {};
469
470 IWM_DPRINTF(sc, IWM_DEBUG_RESET,
471 "%s: called; action=%d\n", __func__, action);
472
473 /* Fill the common data for all mac context types */
474 iwm_mac_ctxt_cmd_common(sc, in, &cmd, action);
475
476 /* Allow beacons to pass through as long as we are not associated,or we
477 * do not have dtim period information */
478 if (!in->in_assoc || !vap->iv_dtim_period)
479 cmd.filter_flags |= htole32(IWM_MAC_FILTER_IN_BEACON);
480 else
481 cmd.filter_flags &= ~htole32(IWM_MAC_FILTER_IN_BEACON);
482
483 /* Fill the data specific for station mode */
484 iwm_mac_ctxt_cmd_fill_sta(sc, in,
485 &cmd.sta, action == IWM_FW_CTXT_ACTION_ADD);
486
487 return iwm_mac_ctxt_send_cmd(sc, &cmd);
488 }
489
490 static int
iwm_mac_ctx_send(struct iwm_softc * sc,struct ieee80211vap * vap,uint32_t action)491 iwm_mac_ctx_send(struct iwm_softc *sc, struct ieee80211vap *vap,
492 uint32_t action)
493 {
494 return iwm_mac_ctxt_cmd_station(sc, vap, action);
495 }
496
497 int
iwm_mac_ctxt_add(struct iwm_softc * sc,struct ieee80211vap * vap)498 iwm_mac_ctxt_add(struct iwm_softc *sc, struct ieee80211vap *vap)
499 {
500 struct iwm_vap *iv = IWM_VAP(vap);
501 int ret;
502
503 if (iv->is_uploaded != 0) {
504 device_printf(sc->sc_dev, "%s: called; uploaded != 0\n",
505 __func__);
506 return (EIO);
507 }
508
509 ret = iwm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_ADD);
510 if (ret)
511 return (ret);
512 iv->is_uploaded = 1;
513 return (0);
514 }
515
516 int
iwm_mac_ctxt_changed(struct iwm_softc * sc,struct ieee80211vap * vap)517 iwm_mac_ctxt_changed(struct iwm_softc *sc, struct ieee80211vap *vap)
518 {
519 struct iwm_vap *iv = IWM_VAP(vap);
520
521 if (iv->is_uploaded == 0) {
522 device_printf(sc->sc_dev, "%s: called; uploaded = 0\n",
523 __func__);
524 return (EIO);
525 }
526 return iwm_mac_ctx_send(sc, vap, IWM_FW_CTXT_ACTION_MODIFY);
527 }
528
529 #if 0
530 static int
531 iwm_mac_ctxt_remove(struct iwm_softc *sc, struct iwm_node *in)
532 {
533 struct iwm_mac_ctx_cmd cmd;
534 int ret;
535
536 if (!in->in_uploaded) {
537 device_printf(sc->sc_dev,
538 "attempt to remove !uploaded node %p", in);
539 return EIO;
540 }
541
542 memset(&cmd, 0, sizeof(cmd));
543
544 cmd.id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID,
545 IWM_DEFAULT_COLOR));
546 cmd.action = htole32(IWM_FW_CTXT_ACTION_REMOVE);
547
548 ret = iwm_send_cmd_pdu(sc,
549 IWM_MAC_CONTEXT_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd);
550 if (ret) {
551 device_printf(sc->sc_dev,
552 "Failed to remove MAC context: %d\n", ret);
553 return ret;
554 }
555 in->in_uploaded = 0;
556
557 return 0;
558 }
559 #endif
560