2 * Copyright (c) 2012 Qualcomm Atheros, Inc.
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.
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.
17 #include <linux/kernel.h>
18 #include <linux/netdevice.h>
19 #include <linux/sched.h>
20 #include <linux/etherdevice.h>
21 #include <linux/wireless.h>
22 #include <linux/ieee80211.h>
23 #include <linux/slab.h>
24 #include <linux/version.h>
25 #include <net/cfg80211.h>
30 #define CHAN60G(_channel, _flags) { \
31 .band = IEEE80211_BAND_60GHZ, \
32 .center_freq = 56160 + (2160 * (_channel)), \
33 .hw_value = (_channel), \
35 .max_antenna_gain = 0, \
39 static struct ieee80211_channel wil_60ghz_channels[] = {
43 /* channel 4 not supported yet */
46 static struct ieee80211_supported_band wil_band_60ghz = {
47 .channels = wil_60ghz_channels,
48 .n_channels = ARRAY_SIZE(wil_60ghz_channels),
52 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
53 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
55 /* MCS 1..12 - SC PHY */
56 .rx_mask = {0xfe, 0x1f}, /* 1..12 */
57 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
62 static const struct ieee80211_txrx_stypes
63 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
64 [NL80211_IFTYPE_STATION] = {
65 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
66 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
67 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
68 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
70 [NL80211_IFTYPE_AP] = {
71 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
72 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
73 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
74 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
76 [NL80211_IFTYPE_P2P_CLIENT] = {
77 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
78 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
79 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
80 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
82 [NL80211_IFTYPE_P2P_GO] = {
83 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
84 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
85 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
86 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
90 static const u32 wil_cipher_suites[] = {
91 WLAN_CIPHER_SUITE_GCMP,
94 int wil_iftype_nl2wmi(enum nl80211_iftype type)
97 enum nl80211_iftype nl;
98 enum wmi_network_type wmi;
100 {NL80211_IFTYPE_ADHOC, WMI_NETTYPE_ADHOC},
101 {NL80211_IFTYPE_STATION, WMI_NETTYPE_INFRA},
102 {NL80211_IFTYPE_AP, WMI_NETTYPE_AP},
103 {NL80211_IFTYPE_P2P_CLIENT, WMI_NETTYPE_P2P},
104 {NL80211_IFTYPE_P2P_GO, WMI_NETTYPE_P2P},
105 {NL80211_IFTYPE_MONITOR, WMI_NETTYPE_ADHOC}, /* FIXME */
109 for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
110 if (__nl2wmi[i].nl == type)
111 return __nl2wmi[i].wmi;
117 static int wil_cfg80211_get_station(struct wiphy *wiphy,
118 struct net_device *ndev,
119 u8 *mac, struct station_info *sinfo)
121 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
123 struct wmi_notify_req_cmd cmd = {
128 if (memcmp(mac, wil->dst_addr[0], ETH_ALEN))
131 /* WMI_NOTIFY_REQ_DONE_EVENTID handler fills wil->stats.bf_mcs */
132 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
133 WMI_NOTIFY_REQ_DONE_EVENTID, NULL, 0, 20);
137 sinfo->generation = wil->sinfo_gen;
139 sinfo->filled |= STATION_INFO_TX_BITRATE;
140 sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
141 sinfo->txrate.mcs = wil->stats.bf_mcs;
142 sinfo->filled |= STATION_INFO_RX_BITRATE;
143 sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
144 sinfo->rxrate.mcs = wil->stats.last_mcs_rx;
146 if (test_bit(wil_status_fwconnected, &wil->status)) {
147 sinfo->filled |= STATION_INFO_SIGNAL;
148 sinfo->signal = 12; /* TODO: provide real value */
154 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
155 struct net_device *ndev,
156 enum nl80211_iftype type, u32 *flags,
157 struct vif_params *params)
159 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
160 struct wireless_dev *wdev = wil->wdev;
163 case NL80211_IFTYPE_STATION:
164 case NL80211_IFTYPE_AP:
165 case NL80211_IFTYPE_P2P_CLIENT:
166 case NL80211_IFTYPE_P2P_GO:
168 case NL80211_IFTYPE_MONITOR:
170 wil->monitor_flags = *flags;
172 wil->monitor_flags = 0;
184 static int wil_cfg80211_scan(struct wiphy *wiphy,
185 struct cfg80211_scan_request *request)
187 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
188 struct wireless_dev *wdev = wil->wdev;
190 struct wmi_start_scan_cmd cmd;
195 if (wil->scan_request) {
196 wil_err(wil, "Already scanning\n");
200 /* check we are client side */
201 switch (wdev->iftype) {
202 case NL80211_IFTYPE_STATION:
203 case NL80211_IFTYPE_P2P_CLIENT:
210 /* FW don't support scan after connection attempt */
211 if (test_bit(wil_status_dontscan, &wil->status)) {
212 wil_err(wil, "Scan after connect attempt not supported\n");
216 wil->scan_request = request;
218 memset(&cmd, 0, sizeof(cmd));
219 cmd.cmd.num_channels = 0;
220 n = min(request->n_channels, 4U);
221 for (i = 0; i < n; i++) {
222 int ch = request->channels[i]->hw_value;
225 "Scan requested for unknown frequency %dMhz\n",
226 request->channels[i]->center_freq);
229 /* 0-based channel indexes */
230 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
231 wil_dbg(wil, "Scan for ch %d : %d MHz\n", ch,
232 request->channels[i]->center_freq);
235 return wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
236 cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
239 static int wil_cfg80211_connect(struct wiphy *wiphy,
240 struct net_device *ndev,
241 struct cfg80211_connect_params *sme)
243 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
244 struct cfg80211_bss *bss;
245 struct wmi_connect_cmd conn;
251 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
252 sme->ssid, sme->ssid_len,
253 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
255 wil_err(wil, "Unable to find BSS\n");
259 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
261 wil_err(wil, "No SSID\n");
267 cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
270 if (sme->ie_len > WMI_MAX_IE_LEN) {
272 wil_err(wil, "IE too large (%td bytes)\n",
277 * For secure assoc, send:
278 * (1) WMI_DELETE_CIPHER_KEY_CMD
279 * (2) WMI_SET_APPIE_CMD
281 rc = wmi_del_cipher_key(wil, 0, bss->bssid);
283 wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD failed\n");
286 /* WMI_SET_APPIE_CMD */
287 rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
289 wil_err(wil, "WMI_SET_APPIE_CMD failed\n");
294 /* WMI_CONNECT_CMD */
295 memset(&conn, 0, sizeof(conn));
296 switch (bss->capability & 0x03) {
297 case WLAN_CAPABILITY_DMG_TYPE_AP:
298 conn.network_type = WMI_NETTYPE_INFRA;
300 case WLAN_CAPABILITY_DMG_TYPE_PBSS:
301 conn.network_type = WMI_NETTYPE_P2P;
304 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
309 conn.dot11_auth_mode = WMI_AUTH11_SHARED;
310 conn.auth_mode = WMI_AUTH_WPA2_PSK;
311 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
312 conn.pairwise_crypto_len = 16;
314 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
315 conn.auth_mode = WMI_AUTH_NONE;
318 conn.ssid_len = min_t(u8, ssid_eid[1], 32);
319 memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
321 ch = bss->channel->hw_value;
323 wil_err(wil, "BSS at unknown frequency %dMhz\n",
324 bss->channel->center_freq);
328 conn.channel = ch - 1;
330 memcpy(conn.bssid, bss->bssid, 6);
331 memcpy(conn.dst_mac, bss->bssid, 6);
333 * FW don't support scan after connection attempt
335 set_bit(wil_status_dontscan, &wil->status);
337 rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
339 /* Connect can take lots of time */
340 mod_timer(&wil->connect_timer,
341 jiffies + msecs_to_jiffies(2000));
345 cfg80211_put_bss(bss);
350 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
351 struct net_device *ndev,
355 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
357 rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
362 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
363 struct cfg80211_chan_def *chandef)
365 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
366 struct wireless_dev *wdev = wil->wdev;
368 wdev->preset_chandef = *chandef;
373 static int wil_cfg80211_add_key(struct wiphy *wiphy,
374 struct net_device *ndev,
375 u8 key_index, bool pairwise,
377 struct key_params *params)
379 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
381 /* group key is not used */
385 return wmi_add_cipher_key(wil, key_index, mac_addr,
386 params->key_len, params->key);
389 static int wil_cfg80211_del_key(struct wiphy *wiphy,
390 struct net_device *ndev,
391 u8 key_index, bool pairwise,
394 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
396 /* group key is not used */
400 return wmi_del_cipher_key(wil, key_index, mac_addr);
403 /* Need to be present or wiphy_new() will WARN */
404 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
405 struct net_device *ndev,
406 u8 key_index, bool unicast,
412 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
413 struct net_device *ndev,
414 struct cfg80211_ap_settings *info)
417 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
418 struct wireless_dev *wdev = ndev->ieee80211_ptr;
419 struct ieee80211_channel *channel = info->chandef.chan;
420 struct cfg80211_beacon_data *bcon = &info->beacon;
421 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
424 wil_err(wil, "AP: No channel???\n");
428 wil_dbg(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
429 channel->center_freq, info->privacy ? "secure" : "open");
430 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
431 info->ssid, info->ssid_len);
437 rc = wmi_set_ssid(wil, info->ssid_len, info->ssid);
441 rc = wmi_set_channel(wil, channel->hw_value);
445 /* MAC address - pre-requisite for other commands */
446 wmi_set_mac_address(wil, ndev->dev_addr);
449 /* bcon 'head IE's are not relevant for 60g band */
450 wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
452 wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, bcon->proberesp_ies_len,
453 bcon->proberesp_ies);
454 wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len,
455 bcon->assocresp_ies);
457 wil->secure_pcp = info->privacy;
459 rc = wmi_set_bcon(wil, info->beacon_interval, wmi_nettype);
463 /* Rx VRING. After MAC and beacon */
464 rc = wil_rx_init(wil);
466 netif_carrier_on(ndev);
471 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
472 struct net_device *ndev)
475 struct wil6210_priv *wil = wiphy_to_wil(wiphy);
476 struct wireless_dev *wdev = ndev->ieee80211_ptr;
477 u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
479 /* To stop beaconing, set BI to 0 */
480 rc = wmi_set_bcon(wil, 0, wmi_nettype);
485 static struct cfg80211_ops wil_cfg80211_ops = {
486 .scan = wil_cfg80211_scan,
487 .connect = wil_cfg80211_connect,
488 .disconnect = wil_cfg80211_disconnect,
489 .change_virtual_intf = wil_cfg80211_change_iface,
490 .get_station = wil_cfg80211_get_station,
491 .set_monitor_channel = wil_cfg80211_set_channel,
492 .add_key = wil_cfg80211_add_key,
493 .del_key = wil_cfg80211_del_key,
494 .set_default_key = wil_cfg80211_set_default_key,
496 .start_ap = wil_cfg80211_start_ap,
497 .stop_ap = wil_cfg80211_stop_ap,
500 static void wil_wiphy_init(struct wiphy *wiphy)
502 /* TODO: set real value */
503 wiphy->max_scan_ssids = 10;
504 wiphy->max_num_pmkids = 0 /* TODO: */;
505 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
506 BIT(NL80211_IFTYPE_AP) |
507 BIT(NL80211_IFTYPE_MONITOR);
508 /* TODO: enable P2P when integrated with supplicant:
509 * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO)
511 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
512 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
513 dev_warn(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
514 __func__, wiphy->flags);
515 wiphy->probe_resp_offload =
516 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
517 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
518 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
520 wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz;
522 /* TODO: figure this out */
523 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
525 wiphy->cipher_suites = wil_cipher_suites;
526 wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
527 wiphy->mgmt_stypes = wil_mgmt_stypes;
530 struct wireless_dev *wil_cfg80211_init(struct device *dev)
533 struct wireless_dev *wdev;
535 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
537 return ERR_PTR(-ENOMEM);
539 wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
540 sizeof(struct wil6210_priv));
546 set_wiphy_dev(wdev->wiphy, dev);
547 wil_wiphy_init(wdev->wiphy);
549 rc = wiphy_register(wdev->wiphy);
556 wiphy_free(wdev->wiphy);
563 void wil_wdev_free(struct wil6210_priv *wil)
565 struct wireless_dev *wdev = wil_to_wdev(wil);
570 wiphy_unregister(wdev->wiphy);
571 wiphy_free(wdev->wiphy);