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Merge tag 'for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power...
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / cfg80211.c
1 /*
2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/etherdevice.h>
18 #include "wil6210.h"
19 #include "wmi.h"
20
21 #define WIL_MAX_ROC_DURATION_MS 5000
22
23 #define CHAN60G(_channel, _flags) { \
24 .band = NL80211_BAND_60GHZ, \
25 .center_freq = 56160 + (2160 * (_channel)), \
26 .hw_value = (_channel), \
27 .flags = (_flags), \
28 .max_antenna_gain = 0, \
29 .max_power = 40, \
30 }
31
32 static struct ieee80211_channel wil_60ghz_channels[] = {
33 CHAN60G(1, 0),
34 CHAN60G(2, 0),
35 CHAN60G(3, 0),
36 /* channel 4 not supported yet */
37 };
38
39 static struct ieee80211_supported_band wil_band_60ghz = {
40 .channels = wil_60ghz_channels,
41 .n_channels = ARRAY_SIZE(wil_60ghz_channels),
42 .ht_cap = {
43 .ht_supported = true,
44 .cap = 0, /* TODO */
45 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
46 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
47 .mcs = {
48 /* MCS 1..12 - SC PHY */
49 .rx_mask = {0xfe, 0x1f}, /* 1..12 */
50 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
51 },
52 },
53 };
54
55 static const struct ieee80211_txrx_stypes
56 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
57 [NL80211_IFTYPE_STATION] = {
58 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
59 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
60 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
61 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
62 },
63 [NL80211_IFTYPE_AP] = {
64 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
65 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
66 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
67 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
68 },
69 [NL80211_IFTYPE_P2P_CLIENT] = {
70 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
71 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
72 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
73 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
74 },
75 [NL80211_IFTYPE_P2P_GO] = {
76 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
77 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
78 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
79 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
80 },
81 [NL80211_IFTYPE_P2P_DEVICE] = {
82 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
83 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
84 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
85 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
86 },
87 };
88
89 static const u32 wil_cipher_suites[] = {
90 WLAN_CIPHER_SUITE_GCMP,
91 };
92
93 static const char * const key_usage_str[] = {
94 [WMI_KEY_USE_PAIRWISE] = "PTK",
95 [WMI_KEY_USE_RX_GROUP] = "RX_GTK",
96 [WMI_KEY_USE_TX_GROUP] = "TX_GTK",
97 };
98
99 int wil_iftype_nl2wmi(enum nl80211_iftype type)
100 {
101 static const struct {
102 enum nl80211_iftype nl;
103 enum wmi_network_type wmi;
104 } __nl2wmi[] = {
105 {NL80211_IFTYPE_ADHOC, WMI_NETTYPE_ADHOC},
106 {NL80211_IFTYPE_STATION, WMI_NETTYPE_INFRA},
107 {NL80211_IFTYPE_AP, WMI_NETTYPE_AP},
108 {NL80211_IFTYPE_P2P_CLIENT, WMI_NETTYPE_P2P},
109 {NL80211_IFTYPE_P2P_GO, WMI_NETTYPE_P2P},
110 {NL80211_IFTYPE_MONITOR, WMI_NETTYPE_ADHOC}, /* FIXME */
111 };
112 uint i;
113
114 for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
115 if (__nl2wmi[i].nl == type)
116 return __nl2wmi[i].wmi;
117 }
118
119 return -EOPNOTSUPP;
120 }
121
122 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
123 struct station_info *sinfo)
124 {
125 struct wmi_notify_req_cmd cmd = {
126 .cid = cid,
127 .interval_usec = 0,
128 };
129 struct {
130 struct wmi_cmd_hdr wmi;
131 struct wmi_notify_req_done_event evt;
132 } __packed reply;
133 struct wil_net_stats *stats = &wil->sta[cid].stats;
134 int rc;
135
136 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
137 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
138 if (rc)
139 return rc;
140
141 wil_dbg_wmi(wil, "Link status for CID %d: {\n"
142 " MCS %d TSF 0x%016llx\n"
143 " BF status 0x%08x SNR 0x%08x SQI %d%%\n"
144 " Tx Tpt %d goodput %d Rx goodput %d\n"
145 " Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n",
146 cid, le16_to_cpu(reply.evt.bf_mcs),
147 le64_to_cpu(reply.evt.tsf), reply.evt.status,
148 le32_to_cpu(reply.evt.snr_val),
149 reply.evt.sqi,
150 le32_to_cpu(reply.evt.tx_tpt),
151 le32_to_cpu(reply.evt.tx_goodput),
152 le32_to_cpu(reply.evt.rx_goodput),
153 le16_to_cpu(reply.evt.my_rx_sector),
154 le16_to_cpu(reply.evt.my_tx_sector),
155 le16_to_cpu(reply.evt.other_rx_sector),
156 le16_to_cpu(reply.evt.other_tx_sector));
157
158 sinfo->generation = wil->sinfo_gen;
159
160 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) |
161 BIT(NL80211_STA_INFO_TX_BYTES) |
162 BIT(NL80211_STA_INFO_RX_PACKETS) |
163 BIT(NL80211_STA_INFO_TX_PACKETS) |
164 BIT(NL80211_STA_INFO_RX_BITRATE) |
165 BIT(NL80211_STA_INFO_TX_BITRATE) |
166 BIT(NL80211_STA_INFO_RX_DROP_MISC) |
167 BIT(NL80211_STA_INFO_TX_FAILED);
168
169 sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
170 sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
171 sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
172 sinfo->rxrate.mcs = stats->last_mcs_rx;
173 sinfo->rx_bytes = stats->rx_bytes;
174 sinfo->rx_packets = stats->rx_packets;
175 sinfo->rx_dropped_misc = stats->rx_dropped;
176 sinfo->tx_bytes = stats->tx_bytes;
177 sinfo->tx_packets = stats->tx_packets;
178 sinfo->tx_failed = stats->tx_errors;
179
180 if (test_bit(wil_status_fwconnected, wil->status)) {
181 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
182 sinfo->signal = reply.evt.sqi;
183 }
184
185 return rc;
186 }
187
188 static int wil_cfg80211_get_station(struct wiphy *wiphy,
189 struct net_device *ndev,
190 const u8 *mac, struct station_info *sinfo)
191 {
192 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
193 int rc;
194
195 int cid = wil_find_cid(wil, mac);
196
197 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
198 if (cid < 0)
199 return cid;
200
201 rc = wil_cid_fill_sinfo(wil, cid, sinfo);
202
203 return rc;
204 }
205
206 /*
207 * Find @idx-th active STA for station dump.
208 */
209 static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx)
210 {
211 int i;
212
213 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
214 if (wil->sta[i].status == wil_sta_unused)
215 continue;
216 if (idx == 0)
217 return i;
218 idx--;
219 }
220
221 return -ENOENT;
222 }
223
224 static int wil_cfg80211_dump_station(struct wiphy *wiphy,
225 struct net_device *dev, int idx,
226 u8 *mac, struct station_info *sinfo)
227 {
228 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
229 int rc;
230 int cid = wil_find_cid_by_idx(wil, idx);
231
232 if (cid < 0)
233 return -ENOENT;
234
235 ether_addr_copy(mac, wil->sta[cid].addr);
236 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
237
238 rc = wil_cid_fill_sinfo(wil, cid, sinfo);
239
240 return rc;
241 }
242
243 static struct wireless_dev *
244 wil_cfg80211_add_iface(struct wiphy *wiphy, const char *name,
245 unsigned char name_assign_type,
246 enum nl80211_iftype type,
247 u32 *flags, struct vif_params *params)
248 {
249 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
250 struct net_device *ndev = wil_to_ndev(wil);
251 struct wireless_dev *p2p_wdev;
252
253 wil_dbg_misc(wil, "%s()\n", __func__);
254
255 if (type != NL80211_IFTYPE_P2P_DEVICE) {
256 wil_err(wil, "%s: unsupported iftype %d\n", __func__, type);
257 return ERR_PTR(-EINVAL);
258 }
259
260 if (wil->p2p_wdev) {
261 wil_err(wil, "%s: P2P_DEVICE interface already created\n",
262 __func__);
263 return ERR_PTR(-EINVAL);
264 }
265
266 p2p_wdev = kzalloc(sizeof(*p2p_wdev), GFP_KERNEL);
267 if (!p2p_wdev)
268 return ERR_PTR(-ENOMEM);
269
270 p2p_wdev->iftype = type;
271 p2p_wdev->wiphy = wiphy;
272 /* use our primary ethernet address */
273 ether_addr_copy(p2p_wdev->address, ndev->perm_addr);
274
275 wil->p2p_wdev = p2p_wdev;
276
277 return p2p_wdev;
278 }
279
280 static int wil_cfg80211_del_iface(struct wiphy *wiphy,
281 struct wireless_dev *wdev)
282 {
283 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
284
285 wil_dbg_misc(wil, "%s()\n", __func__);
286
287 if (wdev != wil->p2p_wdev) {
288 wil_err(wil, "%s: delete of incorrect interface 0x%p\n",
289 __func__, wdev);
290 return -EINVAL;
291 }
292
293 wil_p2p_wdev_free(wil);
294
295 return 0;
296 }
297
298 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
299 struct net_device *ndev,
300 enum nl80211_iftype type, u32 *flags,
301 struct vif_params *params)
302 {
303 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
304 struct wireless_dev *wdev = wil_to_wdev(wil);
305 int rc;
306
307 wil_dbg_misc(wil, "%s() type=%d\n", __func__, type);
308
309 if (netif_running(wil_to_ndev(wil)) && !wil_is_recovery_blocked(wil)) {
310 wil_dbg_misc(wil, "interface is up. resetting...\n");
311 mutex_lock(&wil->mutex);
312 __wil_down(wil);
313 rc = __wil_up(wil);
314 mutex_unlock(&wil->mutex);
315
316 if (rc)
317 return rc;
318 }
319
320 switch (type) {
321 case NL80211_IFTYPE_STATION:
322 case NL80211_IFTYPE_AP:
323 case NL80211_IFTYPE_P2P_CLIENT:
324 case NL80211_IFTYPE_P2P_GO:
325 break;
326 case NL80211_IFTYPE_MONITOR:
327 if (flags)
328 wil->monitor_flags = *flags;
329 else
330 wil->monitor_flags = 0;
331
332 break;
333 default:
334 return -EOPNOTSUPP;
335 }
336
337 wdev->iftype = type;
338
339 return 0;
340 }
341
342 static int wil_cfg80211_scan(struct wiphy *wiphy,
343 struct cfg80211_scan_request *request)
344 {
345 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
346 struct wireless_dev *wdev = request->wdev;
347 struct {
348 struct wmi_start_scan_cmd cmd;
349 u16 chnl[4];
350 } __packed cmd;
351 uint i, n;
352 int rc;
353
354 wil_dbg_misc(wil, "%s(), wdev=0x%p iftype=%d\n",
355 __func__, wdev, wdev->iftype);
356
357 if (wil->scan_request) {
358 wil_err(wil, "Already scanning\n");
359 return -EAGAIN;
360 }
361
362 /* check we are client side */
363 switch (wdev->iftype) {
364 case NL80211_IFTYPE_STATION:
365 case NL80211_IFTYPE_P2P_CLIENT:
366 case NL80211_IFTYPE_P2P_DEVICE:
367 break;
368 default:
369 return -EOPNOTSUPP;
370 }
371
372 /* FW don't support scan after connection attempt */
373 if (test_bit(wil_status_dontscan, wil->status)) {
374 wil_err(wil, "Can't scan now\n");
375 return -EBUSY;
376 }
377
378 /* scan on P2P_DEVICE is handled as p2p search */
379 if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE) {
380 wil->scan_request = request;
381 wil->radio_wdev = wdev;
382 rc = wil_p2p_search(wil, request);
383 if (rc) {
384 wil->radio_wdev = wil_to_wdev(wil);
385 wil->scan_request = NULL;
386 }
387 return rc;
388 }
389
390 (void)wil_p2p_stop_discovery(wil);
391
392 wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
393 wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
394
395 for (i = 0; i < request->n_ssids; i++) {
396 wil_dbg_misc(wil, "SSID[%d]", i);
397 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
398 request->ssids[i].ssid,
399 request->ssids[i].ssid_len);
400 }
401
402 if (request->n_ssids)
403 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
404 request->ssids[0].ssid);
405 else
406 rc = wmi_set_ssid(wil, 0, NULL);
407
408 if (rc) {
409 wil_err(wil, "set SSID for scan request failed: %d\n", rc);
410 return rc;
411 }
412
413 wil->scan_request = request;
414 mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
415
416 memset(&cmd, 0, sizeof(cmd));
417 cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
418 cmd.cmd.num_channels = 0;
419 n = min(request->n_channels, 4U);
420 for (i = 0; i < n; i++) {
421 int ch = request->channels[i]->hw_value;
422
423 if (ch == 0) {
424 wil_err(wil,
425 "Scan requested for unknown frequency %dMhz\n",
426 request->channels[i]->center_freq);
427 continue;
428 }
429 /* 0-based channel indexes */
430 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
431 wil_dbg_misc(wil, "Scan for ch %d : %d MHz\n", ch,
432 request->channels[i]->center_freq);
433 }
434
435 if (request->ie_len)
436 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
437 request->ie, request->ie_len);
438 else
439 wil_dbg_misc(wil, "Scan has no IE's\n");
440
441 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie);
442 if (rc)
443 goto out;
444
445 if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
446 cmd.cmd.discovery_mode = 1;
447 wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
448 }
449
450 wil->radio_wdev = wdev;
451 rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
452 cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
453
454 out:
455 if (rc) {
456 del_timer_sync(&wil->scan_timer);
457 wil->radio_wdev = wil_to_wdev(wil);
458 wil->scan_request = NULL;
459 }
460
461 return rc;
462 }
463
464 static void wil_print_crypto(struct wil6210_priv *wil,
465 struct cfg80211_crypto_settings *c)
466 {
467 int i, n;
468
469 wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
470 c->wpa_versions, c->cipher_group);
471 wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
472 n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
473 for (i = 0; i < n; i++)
474 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i,
475 c->ciphers_pairwise[i]);
476 wil_dbg_misc(wil, "}\n");
477 wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
478 n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
479 for (i = 0; i < n; i++)
480 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i,
481 c->akm_suites[i]);
482 wil_dbg_misc(wil, "}\n");
483 wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
484 c->control_port, be16_to_cpu(c->control_port_ethertype),
485 c->control_port_no_encrypt);
486 }
487
488 static void wil_print_connect_params(struct wil6210_priv *wil,
489 struct cfg80211_connect_params *sme)
490 {
491 wil_info(wil, "Connecting to:\n");
492 if (sme->channel) {
493 wil_info(wil, " Channel: %d freq %d\n",
494 sme->channel->hw_value, sme->channel->center_freq);
495 }
496 if (sme->bssid)
497 wil_info(wil, " BSSID: %pM\n", sme->bssid);
498 if (sme->ssid)
499 print_hex_dump(KERN_INFO, " SSID: ", DUMP_PREFIX_OFFSET,
500 16, 1, sme->ssid, sme->ssid_len, true);
501 wil_info(wil, " Privacy: %s\n", sme->privacy ? "secure" : "open");
502 wil_info(wil, " PBSS: %d\n", sme->pbss);
503 wil_print_crypto(wil, &sme->crypto);
504 }
505
506 static int wil_cfg80211_connect(struct wiphy *wiphy,
507 struct net_device *ndev,
508 struct cfg80211_connect_params *sme)
509 {
510 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
511 struct cfg80211_bss *bss;
512 struct wmi_connect_cmd conn;
513 const u8 *ssid_eid;
514 const u8 *rsn_eid;
515 int ch;
516 int rc = 0;
517 enum ieee80211_bss_type bss_type = IEEE80211_BSS_TYPE_ESS;
518
519 wil_dbg_misc(wil, "%s()\n", __func__);
520 wil_print_connect_params(wil, sme);
521
522 if (test_bit(wil_status_fwconnecting, wil->status) ||
523 test_bit(wil_status_fwconnected, wil->status))
524 return -EALREADY;
525
526 if (sme->ie_len > WMI_MAX_IE_LEN) {
527 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
528 return -ERANGE;
529 }
530
531 rsn_eid = sme->ie ?
532 cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
533 NULL;
534 if (sme->privacy && !rsn_eid)
535 wil_info(wil, "WSC connection\n");
536
537 if (sme->pbss)
538 bss_type = IEEE80211_BSS_TYPE_PBSS;
539
540 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
541 sme->ssid, sme->ssid_len,
542 bss_type, IEEE80211_PRIVACY_ANY);
543 if (!bss) {
544 wil_err(wil, "Unable to find BSS\n");
545 return -ENOENT;
546 }
547
548 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
549 if (!ssid_eid) {
550 wil_err(wil, "No SSID\n");
551 rc = -ENOENT;
552 goto out;
553 }
554 wil->privacy = sme->privacy;
555
556 if (wil->privacy) {
557 /* For secure assoc, remove old keys */
558 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
559 WMI_KEY_USE_PAIRWISE);
560 if (rc) {
561 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
562 goto out;
563 }
564 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
565 WMI_KEY_USE_RX_GROUP);
566 if (rc) {
567 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
568 goto out;
569 }
570 }
571
572 /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
573 * elements. Send it also in case it's empty, to erase previously set
574 * ies in FW.
575 */
576 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
577 if (rc)
578 goto out;
579
580 /* WMI_CONNECT_CMD */
581 memset(&conn, 0, sizeof(conn));
582 switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
583 case WLAN_CAPABILITY_DMG_TYPE_AP:
584 conn.network_type = WMI_NETTYPE_INFRA;
585 break;
586 case WLAN_CAPABILITY_DMG_TYPE_PBSS:
587 conn.network_type = WMI_NETTYPE_P2P;
588 break;
589 default:
590 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
591 bss->capability);
592 goto out;
593 }
594 if (wil->privacy) {
595 if (rsn_eid) { /* regular secure connection */
596 conn.dot11_auth_mode = WMI_AUTH11_SHARED;
597 conn.auth_mode = WMI_AUTH_WPA2_PSK;
598 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
599 conn.pairwise_crypto_len = 16;
600 conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
601 conn.group_crypto_len = 16;
602 } else { /* WSC */
603 conn.dot11_auth_mode = WMI_AUTH11_WSC;
604 conn.auth_mode = WMI_AUTH_NONE;
605 }
606 } else { /* insecure connection */
607 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
608 conn.auth_mode = WMI_AUTH_NONE;
609 }
610
611 conn.ssid_len = min_t(u8, ssid_eid[1], 32);
612 memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
613
614 ch = bss->channel->hw_value;
615 if (ch == 0) {
616 wil_err(wil, "BSS at unknown frequency %dMhz\n",
617 bss->channel->center_freq);
618 rc = -EOPNOTSUPP;
619 goto out;
620 }
621 conn.channel = ch - 1;
622
623 ether_addr_copy(conn.bssid, bss->bssid);
624 ether_addr_copy(conn.dst_mac, bss->bssid);
625
626 set_bit(wil_status_fwconnecting, wil->status);
627
628 rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
629 if (rc == 0) {
630 netif_carrier_on(ndev);
631 /* Connect can take lots of time */
632 mod_timer(&wil->connect_timer,
633 jiffies + msecs_to_jiffies(2000));
634 } else {
635 clear_bit(wil_status_fwconnecting, wil->status);
636 }
637
638 out:
639 cfg80211_put_bss(wiphy, bss);
640
641 return rc;
642 }
643
644 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
645 struct net_device *ndev,
646 u16 reason_code)
647 {
648 int rc;
649 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
650
651 wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
652
653 if (!(test_bit(wil_status_fwconnecting, wil->status) ||
654 test_bit(wil_status_fwconnected, wil->status))) {
655 wil_err(wil, "%s: Disconnect was called while disconnected\n",
656 __func__);
657 return 0;
658 }
659
660 rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
661 WMI_DISCONNECT_EVENTID, NULL, 0,
662 WIL6210_DISCONNECT_TO_MS);
663 if (rc)
664 wil_err(wil, "%s: disconnect error %d\n", __func__, rc);
665
666 return rc;
667 }
668
669 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
670 struct cfg80211_mgmt_tx_params *params,
671 u64 *cookie)
672 {
673 const u8 *buf = params->buf;
674 size_t len = params->len;
675 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
676 int rc;
677 bool tx_status = false;
678 struct ieee80211_mgmt *mgmt_frame = (void *)buf;
679 struct wmi_sw_tx_req_cmd *cmd;
680 struct {
681 struct wmi_cmd_hdr wmi;
682 struct wmi_sw_tx_complete_event evt;
683 } __packed evt;
684
685 /* Note, currently we do not support the "wait" parameter, user-space
686 * must call remain_on_channel before mgmt_tx or listen on a channel
687 * another way (AP/PCP or connected station)
688 * in addition we need to check if specified "chan" argument is
689 * different from currently "listened" channel and fail if it is.
690 */
691
692 wil_dbg_misc(wil, "%s()\n", __func__);
693 print_hex_dump_bytes("mgmt tx frame ", DUMP_PREFIX_OFFSET, buf, len);
694
695 cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
696 if (!cmd) {
697 rc = -ENOMEM;
698 goto out;
699 }
700
701 memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
702 cmd->len = cpu_to_le16(len);
703 memcpy(cmd->payload, buf, len);
704
705 rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
706 WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
707 if (rc == 0)
708 tx_status = !evt.evt.status;
709
710 kfree(cmd);
711 out:
712 cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
713 tx_status, GFP_KERNEL);
714 return rc;
715 }
716
717 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
718 struct cfg80211_chan_def *chandef)
719 {
720 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
721 struct wireless_dev *wdev = wil_to_wdev(wil);
722
723 wdev->preset_chandef = *chandef;
724
725 return 0;
726 }
727
728 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
729 bool pairwise)
730 {
731 struct wireless_dev *wdev = wil_to_wdev(wil);
732 enum wmi_key_usage rc;
733
734 if (pairwise) {
735 rc = WMI_KEY_USE_PAIRWISE;
736 } else {
737 switch (wdev->iftype) {
738 case NL80211_IFTYPE_STATION:
739 case NL80211_IFTYPE_P2P_CLIENT:
740 rc = WMI_KEY_USE_RX_GROUP;
741 break;
742 case NL80211_IFTYPE_AP:
743 case NL80211_IFTYPE_P2P_GO:
744 rc = WMI_KEY_USE_TX_GROUP;
745 break;
746 default:
747 /* TODO: Rx GTK or Tx GTK? */
748 wil_err(wil, "Can't determine GTK type\n");
749 rc = WMI_KEY_USE_RX_GROUP;
750 break;
751 }
752 }
753 wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
754
755 return rc;
756 }
757
758 static struct wil_tid_crypto_rx_single *
759 wil_find_crypto_ctx(struct wil6210_priv *wil, u8 key_index,
760 enum wmi_key_usage key_usage, const u8 *mac_addr)
761 {
762 int cid = -EINVAL;
763 int tid = 0;
764 struct wil_sta_info *s;
765 struct wil_tid_crypto_rx *c;
766
767 if (key_usage == WMI_KEY_USE_TX_GROUP)
768 return NULL; /* not needed */
769
770 /* supplicant provides Rx group key in STA mode with NULL MAC address */
771 if (mac_addr)
772 cid = wil_find_cid(wil, mac_addr);
773 else if (key_usage == WMI_KEY_USE_RX_GROUP)
774 cid = wil_find_cid_by_idx(wil, 0);
775 if (cid < 0) {
776 wil_err(wil, "No CID for %pM %s[%d]\n", mac_addr,
777 key_usage_str[key_usage], key_index);
778 return ERR_PTR(cid);
779 }
780
781 s = &wil->sta[cid];
782 if (key_usage == WMI_KEY_USE_PAIRWISE)
783 c = &s->tid_crypto_rx[tid];
784 else
785 c = &s->group_crypto_rx;
786
787 return &c->key_id[key_index];
788 }
789
790 static int wil_cfg80211_add_key(struct wiphy *wiphy,
791 struct net_device *ndev,
792 u8 key_index, bool pairwise,
793 const u8 *mac_addr,
794 struct key_params *params)
795 {
796 int rc;
797 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
798 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
799 struct wil_tid_crypto_rx_single *cc = wil_find_crypto_ctx(wil,
800 key_index,
801 key_usage,
802 mac_addr);
803
804 wil_dbg_misc(wil, "%s(%pM %s[%d] PN %*phN)\n", __func__,
805 mac_addr, key_usage_str[key_usage], key_index,
806 params->seq_len, params->seq);
807
808 if (IS_ERR(cc)) {
809 wil_err(wil, "Not connected, %s(%pM %s[%d] PN %*phN)\n",
810 __func__, mac_addr, key_usage_str[key_usage], key_index,
811 params->seq_len, params->seq);
812 return -EINVAL;
813 }
814
815 if (cc)
816 cc->key_set = false;
817
818 if (params->seq && params->seq_len != IEEE80211_GCMP_PN_LEN) {
819 wil_err(wil,
820 "Wrong PN len %d, %s(%pM %s[%d] PN %*phN)\n",
821 params->seq_len, __func__, mac_addr,
822 key_usage_str[key_usage], key_index,
823 params->seq_len, params->seq);
824 return -EINVAL;
825 }
826
827 rc = wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
828 params->key, key_usage);
829 if ((rc == 0) && cc) {
830 if (params->seq)
831 memcpy(cc->pn, params->seq, IEEE80211_GCMP_PN_LEN);
832 else
833 memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
834 cc->key_set = true;
835 }
836
837 return rc;
838 }
839
840 static int wil_cfg80211_del_key(struct wiphy *wiphy,
841 struct net_device *ndev,
842 u8 key_index, bool pairwise,
843 const u8 *mac_addr)
844 {
845 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
846 enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
847 struct wil_tid_crypto_rx_single *cc = wil_find_crypto_ctx(wil,
848 key_index,
849 key_usage,
850 mac_addr);
851
852 wil_dbg_misc(wil, "%s(%pM %s[%d])\n", __func__, mac_addr,
853 key_usage_str[key_usage], key_index);
854
855 if (IS_ERR(cc))
856 wil_info(wil, "Not connected, %s(%pM %s[%d])\n", __func__,
857 mac_addr, key_usage_str[key_usage], key_index);
858
859 if (!IS_ERR_OR_NULL(cc))
860 cc->key_set = false;
861
862 return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
863 }
864
865 /* Need to be present or wiphy_new() will WARN */
866 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
867 struct net_device *ndev,
868 u8 key_index, bool unicast,
869 bool multicast)
870 {
871 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
872
873 wil_dbg_misc(wil, "%s: entered\n", __func__);
874 return 0;
875 }
876
877 static int wil_remain_on_channel(struct wiphy *wiphy,
878 struct wireless_dev *wdev,
879 struct ieee80211_channel *chan,
880 unsigned int duration,
881 u64 *cookie)
882 {
883 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
884 int rc;
885
886 wil_dbg_misc(wil, "%s() center_freq=%d, duration=%d iftype=%d\n",
887 __func__, chan->center_freq, duration, wdev->iftype);
888
889 rc = wil_p2p_listen(wil, duration, chan, cookie);
890 if (rc)
891 return rc;
892
893 wil->radio_wdev = wdev;
894
895 cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
896 GFP_KERNEL);
897
898 return 0;
899 }
900
901 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
902 struct wireless_dev *wdev,
903 u64 cookie)
904 {
905 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
906
907 wil_dbg_misc(wil, "%s()\n", __func__);
908
909 return wil_p2p_cancel_listen(wil, cookie);
910 }
911
912 /**
913 * find a specific IE in a list of IEs
914 * return a pointer to the beginning of IE in the list
915 * or NULL if not found
916 */
917 static const u8 *_wil_cfg80211_find_ie(const u8 *ies, u16 ies_len, const u8 *ie,
918 u16 ie_len)
919 {
920 struct ieee80211_vendor_ie *vie;
921 u32 oui;
922
923 /* IE tag at offset 0, length at offset 1 */
924 if (ie_len < 2 || 2 + ie[1] > ie_len)
925 return NULL;
926
927 if (ie[0] != WLAN_EID_VENDOR_SPECIFIC)
928 return cfg80211_find_ie(ie[0], ies, ies_len);
929
930 /* make sure there is room for 3 bytes OUI + 1 byte OUI type */
931 if (ie[1] < 4)
932 return NULL;
933 vie = (struct ieee80211_vendor_ie *)ie;
934 oui = vie->oui[0] << 16 | vie->oui[1] << 8 | vie->oui[2];
935 return cfg80211_find_vendor_ie(oui, vie->oui_type, ies,
936 ies_len);
937 }
938
939 /**
940 * merge the IEs in two lists into a single list.
941 * do not include IEs from the second list which exist in the first list.
942 * add only vendor specific IEs from second list to keep
943 * the merged list sorted (since vendor-specific IE has the
944 * highest tag number)
945 * caller must free the allocated memory for merged IEs
946 */
947 static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len,
948 const u8 *ies2, u16 ies2_len,
949 u8 **merged_ies, u16 *merged_len)
950 {
951 u8 *buf, *dpos;
952 const u8 *spos;
953
954 if (ies1_len == 0 && ies2_len == 0) {
955 *merged_ies = NULL;
956 *merged_len = 0;
957 return 0;
958 }
959
960 buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL);
961 if (!buf)
962 return -ENOMEM;
963 memcpy(buf, ies1, ies1_len);
964 dpos = buf + ies1_len;
965 spos = ies2;
966 while (spos + 1 < ies2 + ies2_len) {
967 /* IE tag at offset 0, length at offset 1 */
968 u16 ielen = 2 + spos[1];
969
970 if (spos + ielen > ies2 + ies2_len)
971 break;
972 if (spos[0] == WLAN_EID_VENDOR_SPECIFIC &&
973 !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) {
974 memcpy(dpos, spos, ielen);
975 dpos += ielen;
976 }
977 spos += ielen;
978 }
979
980 *merged_ies = buf;
981 *merged_len = dpos - buf;
982 return 0;
983 }
984
985 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
986 {
987 print_hex_dump_bytes("head ", DUMP_PREFIX_OFFSET,
988 b->head, b->head_len);
989 print_hex_dump_bytes("tail ", DUMP_PREFIX_OFFSET,
990 b->tail, b->tail_len);
991 print_hex_dump_bytes("BCON IE ", DUMP_PREFIX_OFFSET,
992 b->beacon_ies, b->beacon_ies_len);
993 print_hex_dump_bytes("PROBE ", DUMP_PREFIX_OFFSET,
994 b->probe_resp, b->probe_resp_len);
995 print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
996 b->proberesp_ies, b->proberesp_ies_len);
997 print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
998 b->assocresp_ies, b->assocresp_ies_len);
999 }
1000
1001 /* internal functions for device reset and starting AP */
1002 static int _wil_cfg80211_set_ies(struct wiphy *wiphy,
1003 struct cfg80211_beacon_data *bcon)
1004 {
1005 int rc;
1006 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1007 u16 len = 0, proberesp_len = 0;
1008 u8 *ies = NULL, *proberesp = NULL;
1009
1010 if (bcon->probe_resp) {
1011 struct ieee80211_mgmt *f =
1012 (struct ieee80211_mgmt *)bcon->probe_resp;
1013 size_t hlen = offsetof(struct ieee80211_mgmt,
1014 u.probe_resp.variable);
1015 proberesp = f->u.probe_resp.variable;
1016 proberesp_len = bcon->probe_resp_len - hlen;
1017 }
1018 rc = _wil_cfg80211_merge_extra_ies(proberesp,
1019 proberesp_len,
1020 bcon->proberesp_ies,
1021 bcon->proberesp_ies_len,
1022 &ies, &len);
1023
1024 if (rc)
1025 goto out;
1026
1027 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, len, ies);
1028 if (rc)
1029 goto out;
1030
1031 if (bcon->assocresp_ies)
1032 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
1033 bcon->assocresp_ies_len, bcon->assocresp_ies);
1034 else
1035 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, len, ies);
1036 #if 0 /* to use beacon IE's, remove this #if 0 */
1037 if (rc)
1038 goto out;
1039
1040 rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail);
1041 #endif
1042 out:
1043 kfree(ies);
1044 return rc;
1045 }
1046
1047 static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
1048 struct net_device *ndev,
1049 const u8 *ssid, size_t ssid_len, u32 privacy,
1050 int bi, u8 chan,
1051 struct cfg80211_beacon_data *bcon,
1052 u8 hidden_ssid, u32 pbss)
1053 {
1054 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1055 int rc;
1056 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1057 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
1058 u8 is_go = (wdev->iftype == NL80211_IFTYPE_P2P_GO);
1059
1060 if (pbss)
1061 wmi_nettype = WMI_NETTYPE_P2P;
1062
1063 wil_dbg_misc(wil, "%s: is_go=%d\n", __func__, is_go);
1064 if (is_go && !pbss) {
1065 wil_err(wil, "%s: P2P GO must be in PBSS\n", __func__);
1066 return -ENOTSUPP;
1067 }
1068
1069 wil_set_recovery_state(wil, fw_recovery_idle);
1070
1071 mutex_lock(&wil->mutex);
1072
1073 __wil_down(wil);
1074 rc = __wil_up(wil);
1075 if (rc)
1076 goto out;
1077
1078 rc = wmi_set_ssid(wil, ssid_len, ssid);
1079 if (rc)
1080 goto out;
1081
1082 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1083 if (rc)
1084 goto out;
1085
1086 wil->privacy = privacy;
1087 wil->channel = chan;
1088 wil->hidden_ssid = hidden_ssid;
1089 wil->pbss = pbss;
1090
1091 netif_carrier_on(ndev);
1092
1093 rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid, is_go);
1094 if (rc)
1095 goto err_pcp_start;
1096
1097 rc = wil_bcast_init(wil);
1098 if (rc)
1099 goto err_bcast;
1100
1101 goto out; /* success */
1102
1103 err_bcast:
1104 wmi_pcp_stop(wil);
1105 err_pcp_start:
1106 netif_carrier_off(ndev);
1107 out:
1108 mutex_unlock(&wil->mutex);
1109 return rc;
1110 }
1111
1112 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
1113 struct net_device *ndev,
1114 struct cfg80211_beacon_data *bcon)
1115 {
1116 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1117 int rc;
1118 u32 privacy = 0;
1119
1120 wil_dbg_misc(wil, "%s()\n", __func__);
1121 wil_print_bcon_data(bcon);
1122
1123 if (bcon->tail &&
1124 cfg80211_find_ie(WLAN_EID_RSN, bcon->tail,
1125 bcon->tail_len))
1126 privacy = 1;
1127
1128 /* in case privacy has changed, need to restart the AP */
1129 if (wil->privacy != privacy) {
1130 struct wireless_dev *wdev = ndev->ieee80211_ptr;
1131
1132 wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
1133 wil->privacy, privacy);
1134
1135 rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
1136 wdev->ssid_len, privacy,
1137 wdev->beacon_interval,
1138 wil->channel, bcon,
1139 wil->hidden_ssid,
1140 wil->pbss);
1141 } else {
1142 rc = _wil_cfg80211_set_ies(wiphy, bcon);
1143 }
1144
1145 return rc;
1146 }
1147
1148 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
1149 struct net_device *ndev,
1150 struct cfg80211_ap_settings *info)
1151 {
1152 int rc;
1153 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1154 struct ieee80211_channel *channel = info->chandef.chan;
1155 struct cfg80211_beacon_data *bcon = &info->beacon;
1156 struct cfg80211_crypto_settings *crypto = &info->crypto;
1157 u8 hidden_ssid;
1158
1159 wil_dbg_misc(wil, "%s()\n", __func__);
1160
1161 if (!channel) {
1162 wil_err(wil, "AP: No channel???\n");
1163 return -EINVAL;
1164 }
1165
1166 switch (info->hidden_ssid) {
1167 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1168 hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
1169 break;
1170
1171 case NL80211_HIDDEN_SSID_ZERO_LEN:
1172 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
1173 break;
1174
1175 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1176 hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
1177 break;
1178
1179 default:
1180 wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid);
1181 return -EOPNOTSUPP;
1182 }
1183 wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
1184 channel->center_freq, info->privacy ? "secure" : "open");
1185 wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
1186 info->privacy, info->auth_type);
1187 wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
1188 info->hidden_ssid);
1189 wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
1190 info->dtim_period);
1191 wil_dbg_misc(wil, "PBSS %d\n", info->pbss);
1192 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
1193 info->ssid, info->ssid_len);
1194 wil_print_bcon_data(bcon);
1195 wil_print_crypto(wil, crypto);
1196
1197 rc = _wil_cfg80211_start_ap(wiphy, ndev,
1198 info->ssid, info->ssid_len, info->privacy,
1199 info->beacon_interval, channel->hw_value,
1200 bcon, hidden_ssid, info->pbss);
1201
1202 return rc;
1203 }
1204
1205 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
1206 struct net_device *ndev)
1207 {
1208 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1209
1210 wil_dbg_misc(wil, "%s()\n", __func__);
1211
1212 netif_carrier_off(ndev);
1213 wil_set_recovery_state(wil, fw_recovery_idle);
1214
1215 mutex_lock(&wil->mutex);
1216
1217 wmi_pcp_stop(wil);
1218
1219 __wil_down(wil);
1220
1221 mutex_unlock(&wil->mutex);
1222
1223 return 0;
1224 }
1225
1226 static int wil_cfg80211_del_station(struct wiphy *wiphy,
1227 struct net_device *dev,
1228 struct station_del_parameters *params)
1229 {
1230 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1231
1232 wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
1233 params->reason_code);
1234
1235 mutex_lock(&wil->mutex);
1236 wil6210_disconnect(wil, params->mac, params->reason_code, false);
1237 mutex_unlock(&wil->mutex);
1238
1239 return 0;
1240 }
1241
1242 /* probe_client handling */
1243 static void wil_probe_client_handle(struct wil6210_priv *wil,
1244 struct wil_probe_client_req *req)
1245 {
1246 struct net_device *ndev = wil_to_ndev(wil);
1247 struct wil_sta_info *sta = &wil->sta[req->cid];
1248 /* assume STA is alive if it is still connected,
1249 * else FW will disconnect it
1250 */
1251 bool alive = (sta->status == wil_sta_connected);
1252
1253 cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
1254 }
1255
1256 static struct list_head *next_probe_client(struct wil6210_priv *wil)
1257 {
1258 struct list_head *ret = NULL;
1259
1260 mutex_lock(&wil->probe_client_mutex);
1261
1262 if (!list_empty(&wil->probe_client_pending)) {
1263 ret = wil->probe_client_pending.next;
1264 list_del(ret);
1265 }
1266
1267 mutex_unlock(&wil->probe_client_mutex);
1268
1269 return ret;
1270 }
1271
1272 void wil_probe_client_worker(struct work_struct *work)
1273 {
1274 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1275 probe_client_worker);
1276 struct wil_probe_client_req *req;
1277 struct list_head *lh;
1278
1279 while ((lh = next_probe_client(wil)) != NULL) {
1280 req = list_entry(lh, struct wil_probe_client_req, list);
1281
1282 wil_probe_client_handle(wil, req);
1283 kfree(req);
1284 }
1285 }
1286
1287 void wil_probe_client_flush(struct wil6210_priv *wil)
1288 {
1289 struct wil_probe_client_req *req, *t;
1290
1291 wil_dbg_misc(wil, "%s()\n", __func__);
1292
1293 mutex_lock(&wil->probe_client_mutex);
1294
1295 list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
1296 list_del(&req->list);
1297 kfree(req);
1298 }
1299
1300 mutex_unlock(&wil->probe_client_mutex);
1301 }
1302
1303 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
1304 struct net_device *dev,
1305 const u8 *peer, u64 *cookie)
1306 {
1307 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1308 struct wil_probe_client_req *req;
1309 int cid = wil_find_cid(wil, peer);
1310
1311 wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1312
1313 if (cid < 0)
1314 return -ENOLINK;
1315
1316 req = kzalloc(sizeof(*req), GFP_KERNEL);
1317 if (!req)
1318 return -ENOMEM;
1319
1320 req->cid = cid;
1321 req->cookie = cid;
1322
1323 mutex_lock(&wil->probe_client_mutex);
1324 list_add_tail(&req->list, &wil->probe_client_pending);
1325 mutex_unlock(&wil->probe_client_mutex);
1326
1327 *cookie = req->cookie;
1328 queue_work(wil->wq_service, &wil->probe_client_worker);
1329 return 0;
1330 }
1331
1332 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1333 struct net_device *dev,
1334 struct bss_parameters *params)
1335 {
1336 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1337
1338 if (params->ap_isolate >= 0) {
1339 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1340 wil->ap_isolate, params->ap_isolate);
1341 wil->ap_isolate = params->ap_isolate;
1342 }
1343
1344 return 0;
1345 }
1346
1347 static int wil_cfg80211_start_p2p_device(struct wiphy *wiphy,
1348 struct wireless_dev *wdev)
1349 {
1350 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1351
1352 wil_dbg_misc(wil, "%s: entered\n", __func__);
1353 return 0;
1354 }
1355
1356 static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy,
1357 struct wireless_dev *wdev)
1358 {
1359 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1360
1361 wil_dbg_misc(wil, "%s: entered\n", __func__);
1362 }
1363
1364 static struct cfg80211_ops wil_cfg80211_ops = {
1365 .add_virtual_intf = wil_cfg80211_add_iface,
1366 .del_virtual_intf = wil_cfg80211_del_iface,
1367 .scan = wil_cfg80211_scan,
1368 .connect = wil_cfg80211_connect,
1369 .disconnect = wil_cfg80211_disconnect,
1370 .change_virtual_intf = wil_cfg80211_change_iface,
1371 .get_station = wil_cfg80211_get_station,
1372 .dump_station = wil_cfg80211_dump_station,
1373 .remain_on_channel = wil_remain_on_channel,
1374 .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1375 .mgmt_tx = wil_cfg80211_mgmt_tx,
1376 .set_monitor_channel = wil_cfg80211_set_channel,
1377 .add_key = wil_cfg80211_add_key,
1378 .del_key = wil_cfg80211_del_key,
1379 .set_default_key = wil_cfg80211_set_default_key,
1380 /* AP mode */
1381 .change_beacon = wil_cfg80211_change_beacon,
1382 .start_ap = wil_cfg80211_start_ap,
1383 .stop_ap = wil_cfg80211_stop_ap,
1384 .del_station = wil_cfg80211_del_station,
1385 .probe_client = wil_cfg80211_probe_client,
1386 .change_bss = wil_cfg80211_change_bss,
1387 /* P2P device */
1388 .start_p2p_device = wil_cfg80211_start_p2p_device,
1389 .stop_p2p_device = wil_cfg80211_stop_p2p_device,
1390 };
1391
1392 static void wil_wiphy_init(struct wiphy *wiphy)
1393 {
1394 wiphy->max_scan_ssids = 1;
1395 wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1396 wiphy->max_remain_on_channel_duration = WIL_MAX_ROC_DURATION_MS;
1397 wiphy->max_num_pmkids = 0 /* TODO: */;
1398 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1399 BIT(NL80211_IFTYPE_AP) |
1400 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1401 BIT(NL80211_IFTYPE_P2P_GO) |
1402 BIT(NL80211_IFTYPE_P2P_DEVICE) |
1403 BIT(NL80211_IFTYPE_MONITOR);
1404 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1405 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1406 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1407 dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1408 __func__, wiphy->flags);
1409 wiphy->probe_resp_offload =
1410 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1411 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1412 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1413
1414 wiphy->bands[NL80211_BAND_60GHZ] = &wil_band_60ghz;
1415
1416 /* TODO: figure this out */
1417 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1418
1419 wiphy->cipher_suites = wil_cipher_suites;
1420 wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1421 wiphy->mgmt_stypes = wil_mgmt_stypes;
1422 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1423 }
1424
1425 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1426 {
1427 int rc = 0;
1428 struct wireless_dev *wdev;
1429
1430 dev_dbg(dev, "%s()\n", __func__);
1431
1432 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1433 if (!wdev)
1434 return ERR_PTR(-ENOMEM);
1435
1436 wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1437 sizeof(struct wil6210_priv));
1438 if (!wdev->wiphy) {
1439 rc = -ENOMEM;
1440 goto out;
1441 }
1442
1443 set_wiphy_dev(wdev->wiphy, dev);
1444 wil_wiphy_init(wdev->wiphy);
1445
1446 rc = wiphy_register(wdev->wiphy);
1447 if (rc < 0)
1448 goto out_failed_reg;
1449
1450 return wdev;
1451
1452 out_failed_reg:
1453 wiphy_free(wdev->wiphy);
1454 out:
1455 kfree(wdev);
1456
1457 return ERR_PTR(rc);
1458 }
1459
1460 void wil_wdev_free(struct wil6210_priv *wil)
1461 {
1462 struct wireless_dev *wdev = wil_to_wdev(wil);
1463
1464 dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1465
1466 if (!wdev)
1467 return;
1468
1469 wiphy_unregister(wdev->wiphy);
1470 wiphy_free(wdev->wiphy);
1471 kfree(wdev);
1472 }
1473
1474 void wil_p2p_wdev_free(struct wil6210_priv *wil)
1475 {
1476 struct wireless_dev *p2p_wdev;
1477
1478 mutex_lock(&wil->p2p_wdev_mutex);
1479 p2p_wdev = wil->p2p_wdev;
1480 if (p2p_wdev) {
1481 wil->p2p_wdev = NULL;
1482 wil->radio_wdev = wil_to_wdev(wil);
1483 cfg80211_unregister_wdev(p2p_wdev);
1484 kfree(p2p_wdev);
1485 }
1486 mutex_unlock(&wil->p2p_wdev_mutex);
1487 }
Linux kernel - Deliverables
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