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Merge branch 'for-davem' into for-next
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / cfg80211.c
1 /*
2 * Copyright (c) 2012-2015 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 CHAN60G(_channel, _flags) { \
22 .band = IEEE80211_BAND_60GHZ, \
23 .center_freq = 56160 + (2160 * (_channel)), \
24 .hw_value = (_channel), \
25 .flags = (_flags), \
26 .max_antenna_gain = 0, \
27 .max_power = 40, \
28 }
29
30 static struct ieee80211_channel wil_60ghz_channels[] = {
31 CHAN60G(1, 0),
32 CHAN60G(2, 0),
33 CHAN60G(3, 0),
34 /* channel 4 not supported yet */
35 };
36
37 static struct ieee80211_supported_band wil_band_60ghz = {
38 .channels = wil_60ghz_channels,
39 .n_channels = ARRAY_SIZE(wil_60ghz_channels),
40 .ht_cap = {
41 .ht_supported = true,
42 .cap = 0, /* TODO */
43 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
44 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
45 .mcs = {
46 /* MCS 1..12 - SC PHY */
47 .rx_mask = {0xfe, 0x1f}, /* 1..12 */
48 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
49 },
50 },
51 };
52
53 static const struct ieee80211_txrx_stypes
54 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
55 [NL80211_IFTYPE_STATION] = {
56 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
57 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
58 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
59 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
60 },
61 [NL80211_IFTYPE_AP] = {
62 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
63 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
64 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
65 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
66 },
67 [NL80211_IFTYPE_P2P_CLIENT] = {
68 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
69 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
70 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
71 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
72 },
73 [NL80211_IFTYPE_P2P_GO] = {
74 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
75 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
76 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
77 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
78 },
79 };
80
81 static const u32 wil_cipher_suites[] = {
82 WLAN_CIPHER_SUITE_GCMP,
83 };
84
85 int wil_iftype_nl2wmi(enum nl80211_iftype type)
86 {
87 static const struct {
88 enum nl80211_iftype nl;
89 enum wmi_network_type wmi;
90 } __nl2wmi[] = {
91 {NL80211_IFTYPE_ADHOC, WMI_NETTYPE_ADHOC},
92 {NL80211_IFTYPE_STATION, WMI_NETTYPE_INFRA},
93 {NL80211_IFTYPE_AP, WMI_NETTYPE_AP},
94 {NL80211_IFTYPE_P2P_CLIENT, WMI_NETTYPE_P2P},
95 {NL80211_IFTYPE_P2P_GO, WMI_NETTYPE_P2P},
96 {NL80211_IFTYPE_MONITOR, WMI_NETTYPE_ADHOC}, /* FIXME */
97 };
98 uint i;
99
100 for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
101 if (__nl2wmi[i].nl == type)
102 return __nl2wmi[i].wmi;
103 }
104
105 return -EOPNOTSUPP;
106 }
107
108 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
109 struct station_info *sinfo)
110 {
111 struct wmi_notify_req_cmd cmd = {
112 .cid = cid,
113 .interval_usec = 0,
114 };
115 struct {
116 struct wil6210_mbox_hdr_wmi wmi;
117 struct wmi_notify_req_done_event evt;
118 } __packed reply;
119 struct wil_net_stats *stats = &wil->sta[cid].stats;
120 int rc;
121
122 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
123 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
124 if (rc)
125 return rc;
126
127 wil_dbg_wmi(wil, "Link status for CID %d: {\n"
128 " MCS %d TSF 0x%016llx\n"
129 " BF status 0x%08x SNR 0x%08x SQI %d%%\n"
130 " Tx Tpt %d goodput %d Rx goodput %d\n"
131 " Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n",
132 cid, le16_to_cpu(reply.evt.bf_mcs),
133 le64_to_cpu(reply.evt.tsf), reply.evt.status,
134 le32_to_cpu(reply.evt.snr_val),
135 reply.evt.sqi,
136 le32_to_cpu(reply.evt.tx_tpt),
137 le32_to_cpu(reply.evt.tx_goodput),
138 le32_to_cpu(reply.evt.rx_goodput),
139 le16_to_cpu(reply.evt.my_rx_sector),
140 le16_to_cpu(reply.evt.my_tx_sector),
141 le16_to_cpu(reply.evt.other_rx_sector),
142 le16_to_cpu(reply.evt.other_tx_sector));
143
144 sinfo->generation = wil->sinfo_gen;
145
146 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) |
147 BIT(NL80211_STA_INFO_TX_BYTES) |
148 BIT(NL80211_STA_INFO_RX_PACKETS) |
149 BIT(NL80211_STA_INFO_TX_PACKETS) |
150 BIT(NL80211_STA_INFO_RX_BITRATE) |
151 BIT(NL80211_STA_INFO_TX_BITRATE) |
152 BIT(NL80211_STA_INFO_RX_DROP_MISC) |
153 BIT(NL80211_STA_INFO_TX_FAILED);
154
155 sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
156 sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
157 sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
158 sinfo->rxrate.mcs = stats->last_mcs_rx;
159 sinfo->rx_bytes = stats->rx_bytes;
160 sinfo->rx_packets = stats->rx_packets;
161 sinfo->rx_dropped_misc = stats->rx_dropped;
162 sinfo->tx_bytes = stats->tx_bytes;
163 sinfo->tx_packets = stats->tx_packets;
164 sinfo->tx_failed = stats->tx_errors;
165
166 if (test_bit(wil_status_fwconnected, wil->status)) {
167 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
168 sinfo->signal = reply.evt.sqi;
169 }
170
171 return rc;
172 }
173
174 static int wil_cfg80211_get_station(struct wiphy *wiphy,
175 struct net_device *ndev,
176 const u8 *mac, struct station_info *sinfo)
177 {
178 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
179 int rc;
180
181 int cid = wil_find_cid(wil, mac);
182
183 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
184 if (cid < 0)
185 return cid;
186
187 rc = wil_cid_fill_sinfo(wil, cid, sinfo);
188
189 return rc;
190 }
191
192 /*
193 * Find @idx-th active STA for station dump.
194 */
195 static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx)
196 {
197 int i;
198
199 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
200 if (wil->sta[i].status == wil_sta_unused)
201 continue;
202 if (idx == 0)
203 return i;
204 idx--;
205 }
206
207 return -ENOENT;
208 }
209
210 static int wil_cfg80211_dump_station(struct wiphy *wiphy,
211 struct net_device *dev, int idx,
212 u8 *mac, struct station_info *sinfo)
213 {
214 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
215 int rc;
216 int cid = wil_find_cid_by_idx(wil, idx);
217
218 if (cid < 0)
219 return -ENOENT;
220
221 ether_addr_copy(mac, wil->sta[cid].addr);
222 wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
223
224 rc = wil_cid_fill_sinfo(wil, cid, sinfo);
225
226 return rc;
227 }
228
229 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
230 struct net_device *ndev,
231 enum nl80211_iftype type, u32 *flags,
232 struct vif_params *params)
233 {
234 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
235 struct wireless_dev *wdev = wil->wdev;
236
237 switch (type) {
238 case NL80211_IFTYPE_STATION:
239 case NL80211_IFTYPE_AP:
240 case NL80211_IFTYPE_P2P_CLIENT:
241 case NL80211_IFTYPE_P2P_GO:
242 break;
243 case NL80211_IFTYPE_MONITOR:
244 if (flags)
245 wil->monitor_flags = *flags;
246 else
247 wil->monitor_flags = 0;
248
249 break;
250 default:
251 return -EOPNOTSUPP;
252 }
253
254 wdev->iftype = type;
255
256 return 0;
257 }
258
259 static int wil_cfg80211_scan(struct wiphy *wiphy,
260 struct cfg80211_scan_request *request)
261 {
262 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
263 struct wireless_dev *wdev = wil->wdev;
264 struct {
265 struct wmi_start_scan_cmd cmd;
266 u16 chnl[4];
267 } __packed cmd;
268 uint i, n;
269 int rc;
270
271 if (wil->scan_request) {
272 wil_err(wil, "Already scanning\n");
273 return -EAGAIN;
274 }
275
276 /* check we are client side */
277 switch (wdev->iftype) {
278 case NL80211_IFTYPE_STATION:
279 case NL80211_IFTYPE_P2P_CLIENT:
280 break;
281 default:
282 return -EOPNOTSUPP;
283 }
284
285 /* FW don't support scan after connection attempt */
286 if (test_bit(wil_status_dontscan, wil->status)) {
287 wil_err(wil, "Can't scan now\n");
288 return -EBUSY;
289 }
290
291 wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
292 wil->scan_request = request;
293 mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
294
295 memset(&cmd, 0, sizeof(cmd));
296 cmd.cmd.num_channels = 0;
297 n = min(request->n_channels, 4U);
298 for (i = 0; i < n; i++) {
299 int ch = request->channels[i]->hw_value;
300
301 if (ch == 0) {
302 wil_err(wil,
303 "Scan requested for unknown frequency %dMhz\n",
304 request->channels[i]->center_freq);
305 continue;
306 }
307 /* 0-based channel indexes */
308 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
309 wil_dbg_misc(wil, "Scan for ch %d : %d MHz\n", ch,
310 request->channels[i]->center_freq);
311 }
312
313 if (request->ie_len)
314 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
315 request->ie, request->ie_len);
316 else
317 wil_dbg_misc(wil, "Scan has no IE's\n");
318
319 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len,
320 request->ie);
321 if (rc) {
322 wil_err(wil, "Aborting scan, set_ie failed: %d\n", rc);
323 goto out;
324 }
325
326 rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
327 cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
328
329 out:
330 if (rc) {
331 del_timer_sync(&wil->scan_timer);
332 wil->scan_request = NULL;
333 }
334
335 return rc;
336 }
337
338 static void wil_print_crypto(struct wil6210_priv *wil,
339 struct cfg80211_crypto_settings *c)
340 {
341 int i, n;
342
343 wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
344 c->wpa_versions, c->cipher_group);
345 wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
346 n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
347 for (i = 0; i < n; i++)
348 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i,
349 c->ciphers_pairwise[i]);
350 wil_dbg_misc(wil, "}\n");
351 wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
352 n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
353 for (i = 0; i < n; i++)
354 wil_dbg_misc(wil, " [%d] = 0x%08x\n", i,
355 c->akm_suites[i]);
356 wil_dbg_misc(wil, "}\n");
357 wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
358 c->control_port, be16_to_cpu(c->control_port_ethertype),
359 c->control_port_no_encrypt);
360 }
361
362 static void wil_print_connect_params(struct wil6210_priv *wil,
363 struct cfg80211_connect_params *sme)
364 {
365 wil_info(wil, "Connecting to:\n");
366 if (sme->channel) {
367 wil_info(wil, " Channel: %d freq %d\n",
368 sme->channel->hw_value, sme->channel->center_freq);
369 }
370 if (sme->bssid)
371 wil_info(wil, " BSSID: %pM\n", sme->bssid);
372 if (sme->ssid)
373 print_hex_dump(KERN_INFO, " SSID: ", DUMP_PREFIX_OFFSET,
374 16, 1, sme->ssid, sme->ssid_len, true);
375 wil_info(wil, " Privacy: %s\n", sme->privacy ? "secure" : "open");
376 wil_print_crypto(wil, &sme->crypto);
377 }
378
379 static int wil_cfg80211_connect(struct wiphy *wiphy,
380 struct net_device *ndev,
381 struct cfg80211_connect_params *sme)
382 {
383 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
384 struct cfg80211_bss *bss;
385 struct wmi_connect_cmd conn;
386 const u8 *ssid_eid;
387 const u8 *rsn_eid;
388 int ch;
389 int rc = 0;
390
391 wil_print_connect_params(wil, sme);
392
393 if (test_bit(wil_status_fwconnecting, wil->status) ||
394 test_bit(wil_status_fwconnected, wil->status))
395 return -EALREADY;
396
397 if (sme->ie_len > WMI_MAX_IE_LEN) {
398 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
399 return -ERANGE;
400 }
401
402 rsn_eid = sme->ie ?
403 cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
404 NULL;
405
406 if (sme->privacy && !rsn_eid) {
407 wil_err(wil, "Missing RSN IE for secure connection\n");
408 return -EINVAL;
409 }
410
411 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
412 sme->ssid, sme->ssid_len,
413 IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
414 if (!bss) {
415 wil_err(wil, "Unable to find BSS\n");
416 return -ENOENT;
417 }
418
419 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
420 if (!ssid_eid) {
421 wil_err(wil, "No SSID\n");
422 rc = -ENOENT;
423 goto out;
424 }
425 wil->privacy = sme->privacy;
426
427 if (wil->privacy) {
428 /* For secure assoc, send WMI_DELETE_CIPHER_KEY_CMD */
429 rc = wmi_del_cipher_key(wil, 0, bss->bssid);
430 if (rc) {
431 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD failed\n");
432 goto out;
433 }
434 }
435
436 /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
437 * elements. Send it also in case it's empty, to erase previously set
438 * ies in FW.
439 */
440 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
441 if (rc) {
442 wil_err(wil, "WMI_SET_APPIE_CMD failed\n");
443 goto out;
444 }
445
446 /* WMI_CONNECT_CMD */
447 memset(&conn, 0, sizeof(conn));
448 switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
449 case WLAN_CAPABILITY_DMG_TYPE_AP:
450 conn.network_type = WMI_NETTYPE_INFRA;
451 break;
452 case WLAN_CAPABILITY_DMG_TYPE_PBSS:
453 conn.network_type = WMI_NETTYPE_P2P;
454 break;
455 default:
456 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
457 bss->capability);
458 goto out;
459 }
460 if (wil->privacy) {
461 conn.dot11_auth_mode = WMI_AUTH11_SHARED;
462 conn.auth_mode = WMI_AUTH_WPA2_PSK;
463 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
464 conn.pairwise_crypto_len = 16;
465 } else {
466 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
467 conn.auth_mode = WMI_AUTH_NONE;
468 }
469
470 conn.ssid_len = min_t(u8, ssid_eid[1], 32);
471 memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
472
473 ch = bss->channel->hw_value;
474 if (ch == 0) {
475 wil_err(wil, "BSS at unknown frequency %dMhz\n",
476 bss->channel->center_freq);
477 rc = -EOPNOTSUPP;
478 goto out;
479 }
480 conn.channel = ch - 1;
481
482 ether_addr_copy(conn.bssid, bss->bssid);
483 ether_addr_copy(conn.dst_mac, bss->bssid);
484
485 set_bit(wil_status_fwconnecting, wil->status);
486
487 rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
488 if (rc == 0) {
489 netif_carrier_on(ndev);
490 /* Connect can take lots of time */
491 mod_timer(&wil->connect_timer,
492 jiffies + msecs_to_jiffies(2000));
493 } else {
494 clear_bit(wil_status_fwconnecting, wil->status);
495 }
496
497 out:
498 cfg80211_put_bss(wiphy, bss);
499
500 return rc;
501 }
502
503 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
504 struct net_device *ndev,
505 u16 reason_code)
506 {
507 int rc;
508 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
509
510 rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
511
512 return rc;
513 }
514
515 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
516 struct cfg80211_mgmt_tx_params *params,
517 u64 *cookie)
518 {
519 const u8 *buf = params->buf;
520 size_t len = params->len;
521 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
522 int rc;
523 bool tx_status = false;
524 struct ieee80211_mgmt *mgmt_frame = (void *)buf;
525 struct wmi_sw_tx_req_cmd *cmd;
526 struct {
527 struct wil6210_mbox_hdr_wmi wmi;
528 struct wmi_sw_tx_complete_event evt;
529 } __packed evt;
530
531 cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
532 if (!cmd) {
533 rc = -ENOMEM;
534 goto out;
535 }
536
537 memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
538 cmd->len = cpu_to_le16(len);
539 memcpy(cmd->payload, buf, len);
540
541 rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
542 WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
543 if (rc == 0)
544 tx_status = !evt.evt.status;
545
546 kfree(cmd);
547 out:
548 cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
549 tx_status, GFP_KERNEL);
550 return rc;
551 }
552
553 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
554 struct cfg80211_chan_def *chandef)
555 {
556 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
557 struct wireless_dev *wdev = wil->wdev;
558
559 wdev->preset_chandef = *chandef;
560
561 return 0;
562 }
563
564 static int wil_cfg80211_add_key(struct wiphy *wiphy,
565 struct net_device *ndev,
566 u8 key_index, bool pairwise,
567 const u8 *mac_addr,
568 struct key_params *params)
569 {
570 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
571
572 /* group key is not used */
573 if (!pairwise)
574 return 0;
575
576 return wmi_add_cipher_key(wil, key_index, mac_addr,
577 params->key_len, params->key);
578 }
579
580 static int wil_cfg80211_del_key(struct wiphy *wiphy,
581 struct net_device *ndev,
582 u8 key_index, bool pairwise,
583 const u8 *mac_addr)
584 {
585 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
586
587 /* group key is not used */
588 if (!pairwise)
589 return 0;
590
591 return wmi_del_cipher_key(wil, key_index, mac_addr);
592 }
593
594 /* Need to be present or wiphy_new() will WARN */
595 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
596 struct net_device *ndev,
597 u8 key_index, bool unicast,
598 bool multicast)
599 {
600 return 0;
601 }
602
603 static int wil_remain_on_channel(struct wiphy *wiphy,
604 struct wireless_dev *wdev,
605 struct ieee80211_channel *chan,
606 unsigned int duration,
607 u64 *cookie)
608 {
609 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
610 int rc;
611
612 /* TODO: handle duration */
613 wil_info(wil, "%s(%d, %d ms)\n", __func__, chan->center_freq, duration);
614
615 rc = wmi_set_channel(wil, chan->hw_value);
616 if (rc)
617 return rc;
618
619 rc = wmi_rxon(wil, true);
620
621 return rc;
622 }
623
624 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
625 struct wireless_dev *wdev,
626 u64 cookie)
627 {
628 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
629 int rc;
630
631 wil_info(wil, "%s()\n", __func__);
632
633 rc = wmi_rxon(wil, false);
634
635 return rc;
636 }
637
638 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
639 {
640 print_hex_dump_bytes("head ", DUMP_PREFIX_OFFSET,
641 b->head, b->head_len);
642 print_hex_dump_bytes("tail ", DUMP_PREFIX_OFFSET,
643 b->tail, b->tail_len);
644 print_hex_dump_bytes("BCON IE ", DUMP_PREFIX_OFFSET,
645 b->beacon_ies, b->beacon_ies_len);
646 print_hex_dump_bytes("PROBE ", DUMP_PREFIX_OFFSET,
647 b->probe_resp, b->probe_resp_len);
648 print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
649 b->proberesp_ies, b->proberesp_ies_len);
650 print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
651 b->assocresp_ies, b->assocresp_ies_len);
652 }
653
654 static int wil_fix_bcon(struct wil6210_priv *wil,
655 struct cfg80211_beacon_data *bcon)
656 {
657 struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp;
658 size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
659 int rc = 0;
660
661 if (bcon->probe_resp_len <= hlen)
662 return 0;
663
664 if (!bcon->proberesp_ies) {
665 bcon->proberesp_ies = f->u.probe_resp.variable;
666 bcon->proberesp_ies_len = bcon->probe_resp_len - hlen;
667 rc = 1;
668 }
669 if (!bcon->assocresp_ies) {
670 bcon->assocresp_ies = f->u.probe_resp.variable;
671 bcon->assocresp_ies_len = bcon->probe_resp_len - hlen;
672 rc = 1;
673 }
674
675 return rc;
676 }
677
678 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
679 struct net_device *ndev,
680 struct cfg80211_beacon_data *bcon)
681 {
682 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
683 int rc;
684
685 wil_dbg_misc(wil, "%s()\n", __func__);
686
687 if (wil_fix_bcon(wil, bcon)) {
688 wil_dbg_misc(wil, "Fixed bcon\n");
689 wil_print_bcon_data(bcon);
690 }
691
692 /* FW do not form regular beacon, so bcon IE's are not set
693 * For the DMG bcon, when it will be supported, bcon IE's will
694 * be reused; add something like:
695 * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
696 * bcon->beacon_ies);
697 */
698 rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP,
699 bcon->proberesp_ies_len,
700 bcon->proberesp_ies);
701 if (rc) {
702 wil_err(wil, "set_ie(PROBE_RESP) failed\n");
703 return rc;
704 }
705
706 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
707 bcon->assocresp_ies_len,
708 bcon->assocresp_ies);
709 if (rc) {
710 wil_err(wil, "set_ie(ASSOC_RESP) failed\n");
711 return rc;
712 }
713
714 return 0;
715 }
716
717 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
718 struct net_device *ndev,
719 struct cfg80211_ap_settings *info)
720 {
721 int rc = 0;
722 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
723 struct wireless_dev *wdev = ndev->ieee80211_ptr;
724 struct ieee80211_channel *channel = info->chandef.chan;
725 struct cfg80211_beacon_data *bcon = &info->beacon;
726 struct cfg80211_crypto_settings *crypto = &info->crypto;
727 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
728
729 wil_dbg_misc(wil, "%s()\n", __func__);
730
731 if (!channel) {
732 wil_err(wil, "AP: No channel???\n");
733 return -EINVAL;
734 }
735
736 wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
737 channel->center_freq, info->privacy ? "secure" : "open");
738 wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
739 info->privacy, info->auth_type);
740 wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
741 info->dtim_period);
742 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
743 info->ssid, info->ssid_len);
744 wil_print_bcon_data(bcon);
745 wil_print_crypto(wil, crypto);
746
747 if (wil_fix_bcon(wil, bcon)) {
748 wil_dbg_misc(wil, "Fixed bcon\n");
749 wil_print_bcon_data(bcon);
750 }
751
752 wil_set_recovery_state(wil, fw_recovery_idle);
753
754 mutex_lock(&wil->mutex);
755
756 __wil_down(wil);
757 rc = __wil_up(wil);
758 if (rc)
759 goto out;
760
761 rc = wmi_set_ssid(wil, info->ssid_len, info->ssid);
762 if (rc)
763 goto out;
764
765 /* IE's */
766 /* bcon 'head IE's are not relevant for 60g band */
767 /*
768 * FW do not form regular beacon, so bcon IE's are not set
769 * For the DMG bcon, when it will be supported, bcon IE's will
770 * be reused; add something like:
771 * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
772 * bcon->beacon_ies);
773 */
774 wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, bcon->proberesp_ies_len,
775 bcon->proberesp_ies);
776 wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len,
777 bcon->assocresp_ies);
778
779 wil->privacy = info->privacy;
780
781 netif_carrier_on(ndev);
782
783 rc = wmi_pcp_start(wil, info->beacon_interval, wmi_nettype,
784 channel->hw_value);
785 if (rc)
786 goto err_pcp_start;
787
788 rc = wil_bcast_init(wil);
789 if (rc)
790 goto err_bcast;
791
792 goto out; /* success */
793 err_bcast:
794 wmi_pcp_stop(wil);
795 err_pcp_start:
796 netif_carrier_off(ndev);
797 out:
798 mutex_unlock(&wil->mutex);
799 return rc;
800 }
801
802 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
803 struct net_device *ndev)
804 {
805 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
806
807 wil_dbg_misc(wil, "%s()\n", __func__);
808
809 netif_carrier_off(ndev);
810 wil_set_recovery_state(wil, fw_recovery_idle);
811
812 mutex_lock(&wil->mutex);
813
814 wmi_pcp_stop(wil);
815
816 __wil_down(wil);
817 __wil_up(wil);
818
819 mutex_unlock(&wil->mutex);
820
821 /* some functions above might fail (e.g. __wil_up). Nevertheless, we
822 * return success because AP has stopped
823 */
824 return 0;
825 }
826
827 static int wil_cfg80211_del_station(struct wiphy *wiphy,
828 struct net_device *dev,
829 struct station_del_parameters *params)
830 {
831 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
832
833 mutex_lock(&wil->mutex);
834 wil6210_disconnect(wil, params->mac, params->reason_code, false);
835 mutex_unlock(&wil->mutex);
836
837 return 0;
838 }
839
840 /* probe_client handling */
841 static void wil_probe_client_handle(struct wil6210_priv *wil,
842 struct wil_probe_client_req *req)
843 {
844 struct net_device *ndev = wil_to_ndev(wil);
845 struct wil_sta_info *sta = &wil->sta[req->cid];
846 /* assume STA is alive if it is still connected,
847 * else FW will disconnect it
848 */
849 bool alive = (sta->status == wil_sta_connected);
850
851 cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
852 }
853
854 static struct list_head *next_probe_client(struct wil6210_priv *wil)
855 {
856 struct list_head *ret = NULL;
857
858 mutex_lock(&wil->probe_client_mutex);
859
860 if (!list_empty(&wil->probe_client_pending)) {
861 ret = wil->probe_client_pending.next;
862 list_del(ret);
863 }
864
865 mutex_unlock(&wil->probe_client_mutex);
866
867 return ret;
868 }
869
870 void wil_probe_client_worker(struct work_struct *work)
871 {
872 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
873 probe_client_worker);
874 struct wil_probe_client_req *req;
875 struct list_head *lh;
876
877 while ((lh = next_probe_client(wil)) != NULL) {
878 req = list_entry(lh, struct wil_probe_client_req, list);
879
880 wil_probe_client_handle(wil, req);
881 kfree(req);
882 }
883 }
884
885 void wil_probe_client_flush(struct wil6210_priv *wil)
886 {
887 struct wil_probe_client_req *req, *t;
888
889 wil_dbg_misc(wil, "%s()\n", __func__);
890
891 mutex_lock(&wil->probe_client_mutex);
892
893 list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
894 list_del(&req->list);
895 kfree(req);
896 }
897
898 mutex_unlock(&wil->probe_client_mutex);
899 }
900
901 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
902 struct net_device *dev,
903 const u8 *peer, u64 *cookie)
904 {
905 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
906 struct wil_probe_client_req *req;
907 int cid = wil_find_cid(wil, peer);
908
909 wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
910
911 if (cid < 0)
912 return -ENOLINK;
913
914 req = kzalloc(sizeof(*req), GFP_KERNEL);
915 if (!req)
916 return -ENOMEM;
917
918 req->cid = cid;
919 req->cookie = cid;
920
921 mutex_lock(&wil->probe_client_mutex);
922 list_add_tail(&req->list, &wil->probe_client_pending);
923 mutex_unlock(&wil->probe_client_mutex);
924
925 *cookie = req->cookie;
926 queue_work(wil->wq_service, &wil->probe_client_worker);
927 return 0;
928 }
929
930 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
931 struct net_device *dev,
932 struct bss_parameters *params)
933 {
934 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
935
936 if (params->ap_isolate >= 0) {
937 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
938 wil->ap_isolate, params->ap_isolate);
939 wil->ap_isolate = params->ap_isolate;
940 }
941
942 return 0;
943 }
944
945 static struct cfg80211_ops wil_cfg80211_ops = {
946 .scan = wil_cfg80211_scan,
947 .connect = wil_cfg80211_connect,
948 .disconnect = wil_cfg80211_disconnect,
949 .change_virtual_intf = wil_cfg80211_change_iface,
950 .get_station = wil_cfg80211_get_station,
951 .dump_station = wil_cfg80211_dump_station,
952 .remain_on_channel = wil_remain_on_channel,
953 .cancel_remain_on_channel = wil_cancel_remain_on_channel,
954 .mgmt_tx = wil_cfg80211_mgmt_tx,
955 .set_monitor_channel = wil_cfg80211_set_channel,
956 .add_key = wil_cfg80211_add_key,
957 .del_key = wil_cfg80211_del_key,
958 .set_default_key = wil_cfg80211_set_default_key,
959 /* AP mode */
960 .change_beacon = wil_cfg80211_change_beacon,
961 .start_ap = wil_cfg80211_start_ap,
962 .stop_ap = wil_cfg80211_stop_ap,
963 .del_station = wil_cfg80211_del_station,
964 .probe_client = wil_cfg80211_probe_client,
965 .change_bss = wil_cfg80211_change_bss,
966 };
967
968 static void wil_wiphy_init(struct wiphy *wiphy)
969 {
970 /* TODO: set real value */
971 wiphy->max_scan_ssids = 10;
972 wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
973 wiphy->max_num_pmkids = 0 /* TODO: */;
974 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
975 BIT(NL80211_IFTYPE_AP) |
976 BIT(NL80211_IFTYPE_MONITOR);
977 /* TODO: enable P2P when integrated with supplicant:
978 * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO)
979 */
980 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
981 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
982 dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
983 __func__, wiphy->flags);
984 wiphy->probe_resp_offload =
985 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
986 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
987 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
988
989 wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz;
990
991 /* TODO: figure this out */
992 wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
993
994 wiphy->cipher_suites = wil_cipher_suites;
995 wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
996 wiphy->mgmt_stypes = wil_mgmt_stypes;
997 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
998 }
999
1000 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1001 {
1002 int rc = 0;
1003 struct wireless_dev *wdev;
1004
1005 dev_dbg(dev, "%s()\n", __func__);
1006
1007 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1008 if (!wdev)
1009 return ERR_PTR(-ENOMEM);
1010
1011 wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1012 sizeof(struct wil6210_priv));
1013 if (!wdev->wiphy) {
1014 rc = -ENOMEM;
1015 goto out;
1016 }
1017
1018 set_wiphy_dev(wdev->wiphy, dev);
1019 wil_wiphy_init(wdev->wiphy);
1020
1021 rc = wiphy_register(wdev->wiphy);
1022 if (rc < 0)
1023 goto out_failed_reg;
1024
1025 return wdev;
1026
1027 out_failed_reg:
1028 wiphy_free(wdev->wiphy);
1029 out:
1030 kfree(wdev);
1031
1032 return ERR_PTR(rc);
1033 }
1034
1035 void wil_wdev_free(struct wil6210_priv *wil)
1036 {
1037 struct wireless_dev *wdev = wil_to_wdev(wil);
1038
1039 dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1040
1041 if (!wdev)
1042 return;
1043
1044 wiphy_unregister(wdev->wiphy);
1045 wiphy_free(wdev->wiphy);
1046 kfree(wdev);
1047 }
Linux kernel - Deliverables
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