2 * Implement cfg80211 ("iw") support.
4 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
5 * Holger Schurig <hs4233@mail.mn-solutions.de>
9 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
11 #include <linux/hardirq.h>
12 #include <linux/sched.h>
13 #include <linux/wait.h>
14 #include <linux/slab.h>
15 #include <linux/ieee80211.h>
16 #include <net/cfg80211.h>
17 #include <asm/unaligned.h>
25 #define CHAN2G(_channel, _freq, _flags) { \
26 .band = IEEE80211_BAND_2GHZ, \
27 .center_freq = (_freq), \
28 .hw_value = (_channel), \
30 .max_antenna_gain = 0, \
34 static struct ieee80211_channel lbs_2ghz_channels[] = {
51 #define RATETAB_ENT(_rate, _hw_value, _flags) { \
53 .hw_value = (_hw_value), \
58 /* Table 6 in section 3.2.1.1 */
59 static struct ieee80211_rate lbs_rates[] = {
60 RATETAB_ENT(10, 0, 0),
61 RATETAB_ENT(20, 1, 0),
62 RATETAB_ENT(55, 2, 0),
63 RATETAB_ENT(110, 3, 0),
64 RATETAB_ENT(60, 9, 0),
65 RATETAB_ENT(90, 6, 0),
66 RATETAB_ENT(120, 7, 0),
67 RATETAB_ENT(180, 8, 0),
68 RATETAB_ENT(240, 9, 0),
69 RATETAB_ENT(360, 10, 0),
70 RATETAB_ENT(480, 11, 0),
71 RATETAB_ENT(540, 12, 0),
74 static struct ieee80211_supported_band lbs_band_2ghz = {
75 .channels = lbs_2ghz_channels,
76 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
77 .bitrates = lbs_rates,
78 .n_bitrates = ARRAY_SIZE(lbs_rates),
82 static const u32 cipher_suites[] = {
83 WLAN_CIPHER_SUITE_WEP40,
84 WLAN_CIPHER_SUITE_WEP104,
85 WLAN_CIPHER_SUITE_TKIP,
86 WLAN_CIPHER_SUITE_CCMP,
89 /* Time to stay on the channel */
90 #define LBS_DWELL_PASSIVE 100
91 #define LBS_DWELL_ACTIVE 40
94 /***************************************************************************
95 * Misc utility functions
97 * TLVs are Marvell specific. They are very similar to IEs, they have the
98 * same structure: type, length, data*. The only difference: for IEs, the
99 * type and length are u8, but for TLVs they're __le16.
103 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
104 * in the firmware spec
106 static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
111 case NL80211_AUTHTYPE_OPEN_SYSTEM:
112 case NL80211_AUTHTYPE_SHARED_KEY:
115 case NL80211_AUTHTYPE_AUTOMATIC:
116 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
118 case NL80211_AUTHTYPE_NETWORK_EAP:
122 /* silence compiler */
130 * Various firmware commands need the list of supported rates, but with
131 * the hight-bit set for basic rates
133 static int lbs_add_rates(u8 *rates)
137 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
138 u8 rate = lbs_rates[i].bitrate / 5;
139 if (rate == 0x02 || rate == 0x04 ||
140 rate == 0x0b || rate == 0x16)
144 return ARRAY_SIZE(lbs_rates);
148 /***************************************************************************
149 * TLV utility functions
151 * TLVs are Marvell specific. They are very similar to IEs, they have the
152 * same structure: type, length, data*. The only difference: for IEs, the
153 * type and length are u8, but for TLVs they're __le16.
160 #define LBS_MAX_SSID_TLV_SIZE \
161 (sizeof(struct mrvl_ie_header) \
162 + IEEE80211_MAX_SSID_LEN)
164 static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
166 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
171 * ssid 4d 4e 54 45 53 54
173 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
174 ssid_tlv->header.len = cpu_to_le16(ssid_len);
175 memcpy(ssid_tlv->ssid, ssid, ssid_len);
176 return sizeof(ssid_tlv->header) + ssid_len;
181 * Add channel list TLV (section 8.4.2)
183 * Actual channel data comes from priv->wdev->wiphy->channels.
185 #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
186 (sizeof(struct mrvl_ie_header) \
187 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
189 static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
190 int last_channel, int active_scan)
192 int chanscanparamsize = sizeof(struct chanscanparamset) *
193 (last_channel - priv->scan_channel);
195 struct mrvl_ie_header *header = (void *) tlv;
198 * TLV-ID CHANLIST 01 01
200 * channel 00 01 00 00 00 64 00
204 * min scan time 00 00
205 * max scan time 64 00
206 * channel 2 00 02 00 00 00 64 00
210 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
211 header->len = cpu_to_le16(chanscanparamsize);
212 tlv += sizeof(struct mrvl_ie_header);
214 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
216 memset(tlv, 0, chanscanparamsize);
218 while (priv->scan_channel < last_channel) {
219 struct chanscanparamset *param = (void *) tlv;
221 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
223 priv->scan_req->channels[priv->scan_channel]->hw_value;
225 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
227 param->chanscanmode.passivescan = 1;
228 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
230 tlv += sizeof(struct chanscanparamset);
231 priv->scan_channel++;
233 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
240 * The rates are in lbs_bg_rates[], but for the 802.11b
241 * rates the high bit is set. We add this TLV only because
242 * there's a firmware which otherwise doesn't report all
245 #define LBS_MAX_RATES_TLV_SIZE \
246 (sizeof(struct mrvl_ie_header) \
247 + (ARRAY_SIZE(lbs_rates)))
249 /* Adds a TLV with all rates the hardware supports */
250 static int lbs_add_supported_rates_tlv(u8 *tlv)
253 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
258 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
260 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
261 tlv += sizeof(rate_tlv->header);
262 i = lbs_add_rates(tlv);
264 rate_tlv->header.len = cpu_to_le16(i);
265 return sizeof(rate_tlv->header) + i;
268 /* Add common rates from a TLV and return the new end of the TLV */
270 add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
272 int hw, ap, ap_max = ie[1];
275 /* Advance past IE header */
278 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
280 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
281 hw_rate = lbs_rates[hw].bitrate / 5;
282 for (ap = 0; ap < ap_max; ap++) {
283 if (hw_rate == (ie[ap] & 0x7f)) {
285 *nrates = *nrates + 1;
293 * Adds a TLV with all rates the hardware *and* BSS supports.
295 static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
297 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
298 const u8 *rates_eid, *ext_rates_eid;
302 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
303 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
306 * 01 00 TLV_TYPE_RATES
310 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
311 tlv += sizeof(rate_tlv->header);
313 /* Add basic rates */
315 tlv = add_ie_rates(tlv, rates_eid, &n);
317 /* Add extended rates, if any */
319 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
321 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
322 /* Fallback: add basic 802.11b rates */
331 rate_tlv->header.len = cpu_to_le16(n);
332 return sizeof(rate_tlv->header) + n;
339 * This is only needed for newer firmware (V9 and up).
341 #define LBS_MAX_AUTH_TYPE_TLV_SIZE \
342 sizeof(struct mrvl_ie_auth_type)
344 static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
346 struct mrvl_ie_auth_type *auth = (void *) tlv;
349 * 1f 01 TLV_TYPE_AUTH_TYPE
353 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
354 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
355 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
356 return sizeof(*auth);
361 * Add channel (phy ds) TLV
363 #define LBS_MAX_CHANNEL_TLV_SIZE \
364 sizeof(struct mrvl_ie_header)
366 static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
368 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
371 * 03 00 TLV_TYPE_PHY_DS
375 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
376 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
377 ds->channel = channel;
383 * Add (empty) CF param TLV of the form:
385 #define LBS_MAX_CF_PARAM_TLV_SIZE \
386 sizeof(struct mrvl_ie_header)
388 static int lbs_add_cf_param_tlv(u8 *tlv)
390 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
397 * 00 00 cfpmaxduration
398 * 00 00 cfpdurationremaining
400 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
401 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
408 #define LBS_MAX_WPA_TLV_SIZE \
409 (sizeof(struct mrvl_ie_header) \
410 + 128 /* TODO: I guessed the size */)
412 static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
417 * We need just convert an IE to an TLV. IEs use u8 for the header,
421 * but TLVs use __le16 instead:
428 tlv_len = *tlv++ = *ie++;
432 /* the TLV is two bytes larger than the IE */
440 static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,
441 struct cfg80211_chan_def *chandef)
443 struct lbs_private *priv = wiphy_priv(wiphy);
446 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
447 chandef->chan->center_freq,
448 cfg80211_get_chandef_type(chandef));
450 if (cfg80211_get_chandef_type(chandef) != NL80211_CHAN_NO_HT)
453 ret = lbs_set_channel(priv, chandef->chan->hw_value);
456 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
460 static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy,
461 struct net_device *netdev,
462 struct ieee80211_channel *channel)
464 struct lbs_private *priv = wiphy_priv(wiphy);
467 lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d",
468 netdev_name(netdev), channel->center_freq);
470 if (netdev != priv->mesh_dev)
473 ret = lbs_mesh_set_channel(priv, channel->hw_value);
476 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
487 * When scanning, the firmware doesn't send a nul packet with the power-safe
488 * bit to the AP. So we cannot stay away from our current channel too long,
489 * otherwise we loose data. So take a "nap" while scanning every other
492 #define LBS_SCAN_BEFORE_NAP 4
496 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
497 * which isn't really an RSSI, as it becomes larger when moving away from
498 * the AP. Anyway, we need to convert that into mBm.
500 #define LBS_SCAN_RSSI_TO_MBM(rssi) \
501 ((-(int)rssi + 3)*100)
503 static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
504 struct cmd_header *resp)
506 struct cfg80211_bss *bss;
507 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
515 lbs_deb_enter(LBS_DEB_CFG80211);
517 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
519 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
520 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
522 if (scanresp->nr_sets == 0) {
528 * The general layout of the scan response is described in chapter
529 * 5.7.1. Basically we have a common part, then any number of BSS
530 * descriptor sections. Finally we have section with the same number
533 * cmd_ds_802_11_scan_rsp
546 * MrvlIEtypes_TsfFimestamp_t
552 pos = scanresp->bssdesc_and_tlvbuffer;
554 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
555 scanresp->bssdescriptsize);
557 tsfdesc = pos + bsssize;
558 tsfsize = 4 + 8 * scanresp->nr_sets;
559 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
561 /* Validity check: we expect a Marvell-Local TLV */
562 i = get_unaligned_le16(tsfdesc);
564 if (i != TLV_TYPE_TSFTIMESTAMP) {
565 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
570 * Validity check: the TLV holds TSF values with 8 bytes each, so
571 * the size in the TLV must match the nr_sets value
573 i = get_unaligned_le16(tsfdesc);
575 if (i / 8 != scanresp->nr_sets) {
576 lbs_deb_scan("scan response: invalid number of TSF timestamp "
577 "sets (expected %d got %d)\n", scanresp->nr_sets,
582 for (i = 0; i < scanresp->nr_sets; i++) {
591 const u8 *ssid = NULL;
594 int len = get_unaligned_le16(pos);
602 /* Packet time stamp */
604 /* Beacon interval */
605 intvl = get_unaligned_le16(pos);
608 capa = get_unaligned_le16(pos);
611 /* To find out the channel, we must parse the IEs */
614 * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
615 * interval, capabilities
617 ielen = left = len - (6 + 1 + 8 + 2 + 2);
624 lbs_deb_scan("scan response: invalid IE fmt\n");
628 if (id == WLAN_EID_DS_PARAMS)
630 if (id == WLAN_EID_SSID) {
638 /* No channel, no luck */
640 struct wiphy *wiphy = priv->wdev->wiphy;
641 int freq = ieee80211_channel_to_frequency(chan_no,
642 IEEE80211_BAND_2GHZ);
643 struct ieee80211_channel *channel =
644 ieee80211_get_channel(wiphy, freq);
646 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %*pE, %d dBm\n",
647 bssid, capa, chan_no, ssid_len, ssid,
648 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
651 !(channel->flags & IEEE80211_CHAN_DISABLED)) {
652 bss = cfg80211_inform_bss(wiphy, channel,
653 CFG80211_BSS_FTYPE_UNKNOWN,
654 bssid, get_unaligned_le64(tsfdesc),
655 capa, intvl, ie, ielen,
656 LBS_SCAN_RSSI_TO_MBM(rssi),
658 cfg80211_put_bss(wiphy, bss);
661 lbs_deb_scan("scan response: missing BSS channel IE\n");
668 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
674 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
675 * TLV and a rates TLV. Determine the maximum size of them:
677 #define LBS_SCAN_MAX_CMD_SIZE \
678 (sizeof(struct cmd_ds_802_11_scan) \
679 + LBS_MAX_SSID_TLV_SIZE \
680 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
681 + LBS_MAX_RATES_TLV_SIZE)
684 * Assumes priv->scan_req is initialized and valid
685 * Assumes priv->scan_channel is initialized
687 static void lbs_scan_worker(struct work_struct *work)
689 struct lbs_private *priv =
690 container_of(work, struct lbs_private, scan_work.work);
691 struct cmd_ds_802_11_scan *scan_cmd;
692 u8 *tlv; /* pointer into our current, growing TLV storage area */
694 int running, carrier;
696 lbs_deb_enter(LBS_DEB_SCAN);
698 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
699 if (scan_cmd == NULL)
700 goto out_no_scan_cmd;
702 /* prepare fixed part of scan command */
703 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
705 /* stop network while we're away from our main channel */
706 running = !netif_queue_stopped(priv->dev);
707 carrier = netif_carrier_ok(priv->dev);
709 netif_stop_queue(priv->dev);
711 netif_carrier_off(priv->dev);
713 /* prepare fixed part of scan command */
714 tlv = scan_cmd->tlvbuffer;
717 if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)
718 tlv += lbs_add_ssid_tlv(tlv,
719 priv->scan_req->ssids[0].ssid,
720 priv->scan_req->ssids[0].ssid_len);
722 /* add channel TLVs */
723 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
724 if (last_channel > priv->scan_req->n_channels)
725 last_channel = priv->scan_req->n_channels;
726 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
727 priv->scan_req->n_ssids);
730 tlv += lbs_add_supported_rates_tlv(tlv);
732 if (priv->scan_channel < priv->scan_req->n_channels) {
733 cancel_delayed_work(&priv->scan_work);
734 if (netif_running(priv->dev))
735 queue_delayed_work(priv->work_thread, &priv->scan_work,
736 msecs_to_jiffies(300));
739 /* This is the final data we are about to send */
740 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
741 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
743 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
744 tlv - scan_cmd->tlvbuffer);
746 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
747 le16_to_cpu(scan_cmd->hdr.size),
750 if (priv->scan_channel >= priv->scan_req->n_channels) {
752 cancel_delayed_work(&priv->scan_work);
756 /* Restart network */
758 netif_carrier_on(priv->dev);
759 if (running && !priv->tx_pending_len)
760 netif_wake_queue(priv->dev);
764 /* Wake up anything waiting on scan completion */
765 if (priv->scan_req == NULL) {
766 lbs_deb_scan("scan: waking up waiters\n");
767 wake_up_all(&priv->scan_q);
771 lbs_deb_leave(LBS_DEB_SCAN);
774 static void _internal_start_scan(struct lbs_private *priv, bool internal,
775 struct cfg80211_scan_request *request)
777 lbs_deb_enter(LBS_DEB_CFG80211);
779 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
780 request->n_ssids, request->n_channels, request->ie_len);
782 priv->scan_channel = 0;
783 priv->scan_req = request;
784 priv->internal_scan = internal;
786 queue_delayed_work(priv->work_thread, &priv->scan_work,
787 msecs_to_jiffies(50));
789 lbs_deb_leave(LBS_DEB_CFG80211);
793 * Clean up priv->scan_req. Should be used to handle the allocation details.
795 void lbs_scan_done(struct lbs_private *priv)
797 WARN_ON(!priv->scan_req);
799 if (priv->internal_scan)
800 kfree(priv->scan_req);
802 cfg80211_scan_done(priv->scan_req, false);
804 priv->scan_req = NULL;
807 static int lbs_cfg_scan(struct wiphy *wiphy,
808 struct cfg80211_scan_request *request)
810 struct lbs_private *priv = wiphy_priv(wiphy);
813 lbs_deb_enter(LBS_DEB_CFG80211);
815 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
816 /* old scan request not yet processed */
821 _internal_start_scan(priv, false, request);
823 if (priv->surpriseremoved)
827 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
838 void lbs_send_disconnect_notification(struct lbs_private *priv,
839 bool locally_generated)
841 lbs_deb_enter(LBS_DEB_CFG80211);
843 cfg80211_disconnected(priv->dev, 0, NULL, 0, locally_generated,
846 lbs_deb_leave(LBS_DEB_CFG80211);
849 void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
851 lbs_deb_enter(LBS_DEB_CFG80211);
853 cfg80211_michael_mic_failure(priv->dev,
855 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
856 NL80211_KEYTYPE_GROUP :
857 NL80211_KEYTYPE_PAIRWISE,
862 lbs_deb_leave(LBS_DEB_CFG80211);
874 * This removes all WEP keys
876 static int lbs_remove_wep_keys(struct lbs_private *priv)
878 struct cmd_ds_802_11_set_wep cmd;
881 lbs_deb_enter(LBS_DEB_CFG80211);
883 memset(&cmd, 0, sizeof(cmd));
884 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
885 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
886 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
888 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
890 lbs_deb_leave(LBS_DEB_CFG80211);
897 static int lbs_set_wep_keys(struct lbs_private *priv)
899 struct cmd_ds_802_11_set_wep cmd;
903 lbs_deb_enter(LBS_DEB_CFG80211);
910 * action 02 00 ACT_ADD
912 * type for key 1 01 WEP40
916 * key 1 39 39 39 39 39 00 00 00
917 * 00 00 00 00 00 00 00 00
918 * key 2 00 00 00 00 00 00 00 00
919 * 00 00 00 00 00 00 00 00
920 * key 3 00 00 00 00 00 00 00 00
921 * 00 00 00 00 00 00 00 00
922 * key 4 00 00 00 00 00 00 00 00
924 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
925 priv->wep_key_len[2] || priv->wep_key_len[3]) {
926 /* Only set wep keys if we have at least one of them */
927 memset(&cmd, 0, sizeof(cmd));
928 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
929 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
930 cmd.action = cpu_to_le16(CMD_ACT_ADD);
932 for (i = 0; i < 4; i++) {
933 switch (priv->wep_key_len[i]) {
934 case WLAN_KEY_LEN_WEP40:
935 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
937 case WLAN_KEY_LEN_WEP104:
938 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
944 memcpy(cmd.keymaterial[i], priv->wep_key[i],
945 priv->wep_key_len[i]);
948 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
950 /* Otherwise remove all wep keys */
951 ret = lbs_remove_wep_keys(priv);
954 lbs_deb_leave(LBS_DEB_CFG80211);
960 * Enable/Disable RSN status
962 static int lbs_enable_rsn(struct lbs_private *priv, int enable)
964 struct cmd_ds_802_11_enable_rsn cmd;
967 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
974 * action 01 00 ACT_SET
977 memset(&cmd, 0, sizeof(cmd));
978 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
979 cmd.action = cpu_to_le16(CMD_ACT_SET);
980 cmd.enable = cpu_to_le16(enable);
982 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
984 lbs_deb_leave(LBS_DEB_CFG80211);
990 * Set WPA/WPA key material
994 * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
995 * get rid of WEXT, this should go into host.h
998 struct cmd_key_material {
999 struct cmd_header hdr;
1002 struct MrvlIEtype_keyParamSet param;
1005 static int lbs_set_key_material(struct lbs_private *priv,
1006 int key_type, int key_info,
1007 const u8 *key, u16 key_len)
1009 struct cmd_key_material cmd;
1012 lbs_deb_enter(LBS_DEB_CFG80211);
1015 * Example for WPA (TKIP):
1022 * TLV type 00 01 key param
1024 * key type 01 00 TKIP
1025 * key info 06 00 UNICAST | ENABLED
1029 memset(&cmd, 0, sizeof(cmd));
1030 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1031 cmd.action = cpu_to_le16(CMD_ACT_SET);
1032 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
1033 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
1034 cmd.param.keytypeid = cpu_to_le16(key_type);
1035 cmd.param.keyinfo = cpu_to_le16(key_info);
1036 cmd.param.keylen = cpu_to_le16(key_len);
1038 memcpy(cmd.param.key, key, key_len);
1040 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
1042 lbs_deb_leave(LBS_DEB_CFG80211);
1048 * Sets the auth type (open, shared, etc) in the firmware. That
1049 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1050 * command doesn't send an authentication frame at all, it just
1051 * stores the auth_type.
1053 static int lbs_set_authtype(struct lbs_private *priv,
1054 struct cfg80211_connect_params *sme)
1056 struct cmd_ds_802_11_authenticate cmd;
1059 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1066 * BSS id 00 13 19 80 da 30
1068 * reserved 00 00 00 00 00 00 00 00 00 00
1070 memset(&cmd, 0, sizeof(cmd));
1071 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1073 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1074 /* convert auth_type */
1075 ret = lbs_auth_to_authtype(sme->auth_type);
1080 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1083 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1089 * Create association request
1091 #define LBS_ASSOC_MAX_CMD_SIZE \
1092 (sizeof(struct cmd_ds_802_11_associate) \
1093 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1094 + LBS_MAX_SSID_TLV_SIZE \
1095 + LBS_MAX_CHANNEL_TLV_SIZE \
1096 + LBS_MAX_CF_PARAM_TLV_SIZE \
1097 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1098 + LBS_MAX_WPA_TLV_SIZE)
1100 static int lbs_associate(struct lbs_private *priv,
1101 struct cfg80211_bss *bss,
1102 struct cfg80211_connect_params *sme)
1104 struct cmd_ds_802_11_associate_response *resp;
1105 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1108 size_t len, resp_ie_len;
1114 lbs_deb_enter(LBS_DEB_CFG80211);
1120 pos = &cmd->iebuf[0];
1127 * BSS id 00 13 19 80 da 30
1128 * capabilities 11 00
1129 * listen interval 0a 00
1130 * beacon interval 00 00
1132 * TLVs xx (up to 512 bytes)
1134 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1136 /* Fill in static fields */
1137 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1138 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1139 cmd->capability = cpu_to_le16(bss->capability);
1143 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1145 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1147 lbs_deb_assoc("no SSID\n");
1150 /* add DS param TLV */
1152 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1154 lbs_deb_assoc("no channel\n");
1156 /* add (empty) CF param TLV */
1157 pos += lbs_add_cf_param_tlv(pos);
1160 tmp = pos + 4; /* skip Marvell IE header */
1161 pos += lbs_add_common_rates_tlv(pos, bss);
1162 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
1164 /* add auth type TLV */
1165 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
1166 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1168 /* add WPA/WPA2 TLV */
1169 if (sme->ie && sme->ie_len)
1170 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1172 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1173 (u16)(pos - (u8 *) &cmd->iebuf);
1174 cmd->hdr.size = cpu_to_le16(len);
1176 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
1177 le16_to_cpu(cmd->hdr.size));
1179 /* store for later use */
1180 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1182 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1186 /* generate connect message to cfg80211 */
1188 resp = (void *) cmd; /* recast for easier field access */
1189 status = le16_to_cpu(resp->statuscode);
1191 /* Older FW versions map the IEEE 802.11 Status Code in the association
1192 * response to the following values returned in resp->statuscode:
1194 * IEEE Status Code Marvell Status Code
1195 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1196 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1197 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1198 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1199 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1200 * others -> 0x0003 ASSOC_RESULT_REFUSED
1202 * Other response codes:
1203 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1204 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1205 * association response from the AP)
1207 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1212 lbs_deb_assoc("invalid association parameters\n");
1213 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1216 lbs_deb_assoc("timer expired while waiting for AP\n");
1217 status = WLAN_STATUS_AUTH_TIMEOUT;
1220 lbs_deb_assoc("association refused by AP\n");
1221 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1224 lbs_deb_assoc("authentication refused by AP\n");
1225 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1228 lbs_deb_assoc("association failure %d\n", status);
1229 /* v5 OLPC firmware does return the AP status code if
1230 * it's not one of the values above. Let that through.
1236 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1237 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
1238 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
1240 resp_ie_len = le16_to_cpu(resp->hdr.size)
1243 cfg80211_connect_result(priv->dev,
1245 sme->ie, sme->ie_len,
1246 resp->iebuf, resp_ie_len,
1251 /* TODO: get rid of priv->connect_status */
1252 priv->connect_status = LBS_CONNECTED;
1253 netif_carrier_on(priv->dev);
1254 if (!priv->tx_pending_len)
1255 netif_tx_wake_all_queues(priv->dev);
1260 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1264 static struct cfg80211_scan_request *
1265 _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1267 struct cfg80211_scan_request *creq = NULL;
1268 int i, n_channels = ieee80211_get_num_supported_channels(wiphy);
1269 enum ieee80211_band band;
1271 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1272 n_channels * sizeof(void *),
1277 /* SSIDs come after channels */
1278 creq->ssids = (void *)&creq->channels[n_channels];
1279 creq->n_channels = n_channels;
1282 /* Scan all available channels */
1284 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1287 if (!wiphy->bands[band])
1290 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1291 /* ignore disabled channels */
1292 if (wiphy->bands[band]->channels[j].flags &
1293 IEEE80211_CHAN_DISABLED)
1296 creq->channels[i] = &wiphy->bands[band]->channels[j];
1301 /* Set real number of channels specified in creq->channels[] */
1302 creq->n_channels = i;
1304 /* Scan for the SSID we're going to connect to */
1305 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1306 creq->ssids[0].ssid_len = sme->ssid_len;
1308 /* No channels found... */
1316 static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1317 struct cfg80211_connect_params *sme)
1319 struct lbs_private *priv = wiphy_priv(wiphy);
1320 struct cfg80211_bss *bss = NULL;
1322 u8 preamble = RADIO_PREAMBLE_SHORT;
1324 if (dev == priv->mesh_dev)
1327 lbs_deb_enter(LBS_DEB_CFG80211);
1330 struct cfg80211_scan_request *creq;
1333 * Scan for the requested network after waiting for existing
1336 lbs_deb_assoc("assoc: waiting for existing scans\n");
1337 wait_event_interruptible_timeout(priv->scan_q,
1338 (priv->scan_req == NULL),
1341 creq = _new_connect_scan_req(wiphy, sme);
1347 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1348 _internal_start_scan(priv, true, creq);
1350 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1351 wait_event_interruptible_timeout(priv->scan_q,
1352 (priv->scan_req == NULL),
1354 lbs_deb_assoc("assoc: scanning completed\n");
1357 /* Find the BSS we want using available scan results */
1358 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1359 sme->ssid, sme->ssid_len, IEEE80211_BSS_TYPE_ESS,
1360 IEEE80211_PRIVACY_ANY);
1362 wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
1367 lbs_deb_assoc("trying %pM\n", bss->bssid);
1368 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1369 sme->crypto.cipher_group,
1370 sme->key_idx, sme->key_len);
1372 /* As this is a new connection, clear locally stored WEP keys */
1373 priv->wep_tx_key = 0;
1374 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1375 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1377 /* set/remove WEP keys */
1378 switch (sme->crypto.cipher_group) {
1379 case WLAN_CIPHER_SUITE_WEP40:
1380 case WLAN_CIPHER_SUITE_WEP104:
1381 /* Store provided WEP keys in priv-> */
1382 priv->wep_tx_key = sme->key_idx;
1383 priv->wep_key_len[sme->key_idx] = sme->key_len;
1384 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1385 /* Set WEP keys and WEP mode */
1386 lbs_set_wep_keys(priv);
1387 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1388 lbs_set_mac_control(priv);
1389 /* No RSN mode for WEP */
1390 lbs_enable_rsn(priv, 0);
1392 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1394 * If we don't have no WEP, no WPA and no WPA2,
1395 * we remove all keys like in the WPA/WPA2 setup,
1396 * we just don't set RSN.
1398 * Therefore: fall-through
1400 case WLAN_CIPHER_SUITE_TKIP:
1401 case WLAN_CIPHER_SUITE_CCMP:
1402 /* Remove WEP keys and WEP mode */
1403 lbs_remove_wep_keys(priv);
1404 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1405 lbs_set_mac_control(priv);
1407 /* clear the WPA/WPA2 keys */
1408 lbs_set_key_material(priv,
1409 KEY_TYPE_ID_WEP, /* doesn't matter */
1410 KEY_INFO_WPA_UNICAST,
1412 lbs_set_key_material(priv,
1413 KEY_TYPE_ID_WEP, /* doesn't matter */
1416 /* RSN mode for WPA/WPA2 */
1417 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1420 wiphy_err(wiphy, "unsupported cipher group 0x%x\n",
1421 sme->crypto.cipher_group);
1426 ret = lbs_set_authtype(priv, sme);
1427 if (ret == -ENOTSUPP) {
1428 wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type);
1432 lbs_set_radio(priv, preamble, 1);
1434 /* Do the actual association */
1435 ret = lbs_associate(priv, bss, sme);
1439 cfg80211_put_bss(wiphy, bss);
1440 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1444 int lbs_disconnect(struct lbs_private *priv, u16 reason)
1446 struct cmd_ds_802_11_deauthenticate cmd;
1449 memset(&cmd, 0, sizeof(cmd));
1450 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1451 /* Mildly ugly to use a locally store my own BSSID ... */
1452 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1453 cmd.reasoncode = cpu_to_le16(reason);
1455 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
1459 cfg80211_disconnected(priv->dev,
1463 priv->connect_status = LBS_DISCONNECTED;
1468 static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1471 struct lbs_private *priv = wiphy_priv(wiphy);
1473 if (dev == priv->mesh_dev)
1476 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
1478 /* store for lbs_cfg_ret_disconnect() */
1479 priv->disassoc_reason = reason_code;
1481 return lbs_disconnect(priv, reason_code);
1484 static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1485 struct net_device *netdev,
1486 u8 key_index, bool unicast,
1489 struct lbs_private *priv = wiphy_priv(wiphy);
1491 if (netdev == priv->mesh_dev)
1494 lbs_deb_enter(LBS_DEB_CFG80211);
1496 if (key_index != priv->wep_tx_key) {
1497 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1498 priv->wep_tx_key = key_index;
1499 lbs_set_wep_keys(priv);
1506 static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1507 u8 idx, bool pairwise, const u8 *mac_addr,
1508 struct key_params *params)
1510 struct lbs_private *priv = wiphy_priv(wiphy);
1515 if (netdev == priv->mesh_dev)
1518 lbs_deb_enter(LBS_DEB_CFG80211);
1520 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1521 params->cipher, mac_addr);
1522 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1523 idx, params->key_len);
1524 if (params->key_len)
1525 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1526 params->key, params->key_len);
1528 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1529 if (params->seq_len)
1530 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1531 params->seq, params->seq_len);
1533 switch (params->cipher) {
1534 case WLAN_CIPHER_SUITE_WEP40:
1535 case WLAN_CIPHER_SUITE_WEP104:
1536 /* actually compare if something has changed ... */
1537 if ((priv->wep_key_len[idx] != params->key_len) ||
1538 memcmp(priv->wep_key[idx],
1539 params->key, params->key_len) != 0) {
1540 priv->wep_key_len[idx] = params->key_len;
1541 memcpy(priv->wep_key[idx],
1542 params->key, params->key_len);
1543 lbs_set_wep_keys(priv);
1546 case WLAN_CIPHER_SUITE_TKIP:
1547 case WLAN_CIPHER_SUITE_CCMP:
1548 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1549 ? KEY_INFO_WPA_UNICAST
1550 : KEY_INFO_WPA_MCAST);
1551 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1554 lbs_set_key_material(priv,
1557 params->key, params->key_len);
1560 wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);
1569 static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1570 u8 key_index, bool pairwise, const u8 *mac_addr)
1573 lbs_deb_enter(LBS_DEB_CFG80211);
1575 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1576 key_index, mac_addr);
1579 struct lbs_private *priv = wiphy_priv(wiphy);
1581 * I think can keep this a NO-OP, because:
1583 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1584 * - neither "iw" nor "wpa_supplicant" won't call this during
1585 * an ongoing connection
1586 * - TODO: but I have to check if this is still true when
1587 * I set the AP to periodic re-keying
1588 * - we've not kzallec() something when we've added a key at
1589 * lbs_cfg_connect() or lbs_cfg_add_key().
1591 * This causes lbs_cfg_del_key() only called at disconnect time,
1592 * where we'd just waste time deleting a key that is not going
1593 * to be used anyway.
1595 if (key_index < 3 && priv->wep_key_len[key_index]) {
1596 priv->wep_key_len[key_index] = 0;
1597 lbs_set_wep_keys(priv);
1609 static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1610 const u8 *mac, struct station_info *sinfo)
1612 struct lbs_private *priv = wiphy_priv(wiphy);
1617 lbs_deb_enter(LBS_DEB_CFG80211);
1619 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES) |
1620 BIT(NL80211_STA_INFO_TX_PACKETS) |
1621 BIT(NL80211_STA_INFO_RX_BYTES) |
1622 BIT(NL80211_STA_INFO_RX_PACKETS);
1623 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1624 sinfo->tx_packets = priv->dev->stats.tx_packets;
1625 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1626 sinfo->rx_packets = priv->dev->stats.rx_packets;
1628 /* Get current RSSI */
1629 ret = lbs_get_rssi(priv, &signal, &noise);
1631 sinfo->signal = signal;
1632 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
1635 /* Convert priv->cur_rate from hw_value to NL80211 value */
1636 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1637 if (priv->cur_rate == lbs_rates[i].hw_value) {
1638 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1639 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
1654 static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1655 enum nl80211_iftype type, u32 *flags,
1656 struct vif_params *params)
1658 struct lbs_private *priv = wiphy_priv(wiphy);
1661 if (dev == priv->mesh_dev)
1665 case NL80211_IFTYPE_MONITOR:
1666 case NL80211_IFTYPE_STATION:
1667 case NL80211_IFTYPE_ADHOC:
1673 lbs_deb_enter(LBS_DEB_CFG80211);
1675 if (priv->iface_running)
1676 ret = lbs_set_iface_type(priv, type);
1679 priv->wdev->iftype = type;
1681 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1692 * The firmware needs the following bits masked out of the beacon-derived
1693 * capability field when associating/joining to a BSS:
1694 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1696 #define CAPINFO_MASK (~(0xda00))
1699 static void lbs_join_post(struct lbs_private *priv,
1700 struct cfg80211_ibss_params *params,
1701 u8 *bssid, u16 capability)
1703 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1704 2 + 4 + /* basic rates */
1705 2 + 1 + /* DS parameter */
1707 2 + 8]; /* extended rates */
1709 struct cfg80211_bss *bss;
1711 lbs_deb_enter(LBS_DEB_CFG80211);
1714 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1715 * the real IE from the firmware. So we fabricate a fake IE based on
1716 * what the firmware actually sends (sniffed with wireshark).
1719 *fake++ = WLAN_EID_SSID;
1720 *fake++ = params->ssid_len;
1721 memcpy(fake, params->ssid, params->ssid_len);
1722 fake += params->ssid_len;
1723 /* Fake supported basic rates IE */
1724 *fake++ = WLAN_EID_SUPP_RATES;
1730 /* Fake DS channel IE */
1731 *fake++ = WLAN_EID_DS_PARAMS;
1733 *fake++ = params->chandef.chan->hw_value;
1734 /* Fake IBSS params IE */
1735 *fake++ = WLAN_EID_IBSS_PARAMS;
1737 *fake++ = 0; /* ATIM=0 */
1739 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1740 * but I don't know how this could be checked */
1741 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1751 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1753 bss = cfg80211_inform_bss(priv->wdev->wiphy,
1754 params->chandef.chan,
1755 CFG80211_BSS_FTYPE_UNKNOWN,
1759 params->beacon_interval,
1760 fake_ie, fake - fake_ie,
1762 cfg80211_put_bss(priv->wdev->wiphy, bss);
1764 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1765 priv->wdev->ssid_len = params->ssid_len;
1767 cfg80211_ibss_joined(priv->dev, bssid, params->chandef.chan,
1770 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1771 priv->connect_status = LBS_CONNECTED;
1772 netif_carrier_on(priv->dev);
1773 if (!priv->tx_pending_len)
1774 netif_wake_queue(priv->dev);
1776 lbs_deb_leave(LBS_DEB_CFG80211);
1779 static int lbs_ibss_join_existing(struct lbs_private *priv,
1780 struct cfg80211_ibss_params *params,
1781 struct cfg80211_bss *bss)
1783 const u8 *rates_eid;
1784 struct cmd_ds_802_11_ad_hoc_join cmd;
1785 u8 preamble = RADIO_PREAMBLE_SHORT;
1788 lbs_deb_enter(LBS_DEB_CFG80211);
1790 /* TODO: set preamble based on scan result */
1791 ret = lbs_set_radio(priv, preamble, 1);
1796 * Example CMD_802_11_AD_HOC_JOIN command:
1798 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1802 * bssid 02 27 27 97 2f 96
1803 * ssid 49 42 53 53 00 00 00 00
1804 * 00 00 00 00 00 00 00 00
1805 * 00 00 00 00 00 00 00 00
1806 * 00 00 00 00 00 00 00 00
1807 * type 02 CMD_BSS_TYPE_IBSS
1808 * beacon period 64 00
1810 * timestamp 00 00 00 00 00 00 00 00
1811 * localtime 00 00 00 00 00 00 00 00
1815 * reserveed 00 00 00 00
1818 * IE IBSS atim 00 00
1819 * reserved 00 00 00 00
1821 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1822 * fail timeout ff 00
1825 memset(&cmd, 0, sizeof(cmd));
1826 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1828 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1829 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1830 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1831 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1832 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1833 cmd.bss.ds.header.len = 1;
1834 cmd.bss.ds.channel = params->chandef.chan->hw_value;
1835 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1836 cmd.bss.ibss.header.len = 2;
1837 cmd.bss.ibss.atimwindow = 0;
1838 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1840 /* set rates to the intersection of our rates and the rates in the
1843 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1845 lbs_add_rates(cmd.bss.rates);
1848 u8 rates_max = rates_eid[1];
1849 u8 *rates = cmd.bss.rates;
1850 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1851 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1852 for (i = 0; i < rates_max; i++) {
1853 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1854 u8 rate = rates_eid[i+2];
1855 if (rate == 0x02 || rate == 0x04 ||
1856 rate == 0x0b || rate == 0x16)
1865 /* Only v8 and below support setting this */
1866 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1867 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1868 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1870 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1875 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1883 lbs_join_post(priv, params, bss->bssid, bss->capability);
1886 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1892 static int lbs_ibss_start_new(struct lbs_private *priv,
1893 struct cfg80211_ibss_params *params)
1895 struct cmd_ds_802_11_ad_hoc_start cmd;
1896 struct cmd_ds_802_11_ad_hoc_result *resp =
1897 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1898 u8 preamble = RADIO_PREAMBLE_SHORT;
1902 lbs_deb_enter(LBS_DEB_CFG80211);
1904 ret = lbs_set_radio(priv, preamble, 1);
1909 * Example CMD_802_11_AD_HOC_START command:
1911 * command 2b 00 CMD_802_11_AD_HOC_START
1915 * ssid 54 45 53 54 00 00 00 00
1916 * 00 00 00 00 00 00 00 00
1917 * 00 00 00 00 00 00 00 00
1918 * 00 00 00 00 00 00 00 00
1920 * beacon period 64 00
1924 * IE IBSS atim 00 00
1925 * reserved 00 00 00 00
1929 * reserved 00 00 00 00
1932 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1933 * 0c 12 18 24 30 48 60 6c
1936 memset(&cmd, 0, sizeof(cmd));
1937 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1938 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1939 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1940 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1941 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1942 cmd.ibss.header.len = 2;
1943 cmd.ibss.atimwindow = 0;
1944 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1945 cmd.ds.header.len = 1;
1946 cmd.ds.channel = params->chandef.chan->hw_value;
1947 /* Only v8 and below support setting probe delay */
1948 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1949 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1950 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1951 capability = WLAN_CAPABILITY_IBSS;
1952 cmd.capability = cpu_to_le16(capability);
1953 lbs_add_rates(cmd.rates);
1956 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1961 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1968 * bssid 02 2b 7b 0f 86 0e
1970 lbs_join_post(priv, params, resp->bssid, capability);
1973 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1978 static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1979 struct cfg80211_ibss_params *params)
1981 struct lbs_private *priv = wiphy_priv(wiphy);
1983 struct cfg80211_bss *bss;
1985 if (dev == priv->mesh_dev)
1988 lbs_deb_enter(LBS_DEB_CFG80211);
1990 if (!params->chandef.chan) {
1995 ret = lbs_set_channel(priv, params->chandef.chan->hw_value);
1999 /* Search if someone is beaconing. This assumes that the
2000 * bss list is populated already */
2001 bss = cfg80211_get_bss(wiphy, params->chandef.chan, params->bssid,
2002 params->ssid, params->ssid_len,
2003 IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);
2006 ret = lbs_ibss_join_existing(priv, params, bss);
2007 cfg80211_put_bss(wiphy, bss);
2009 ret = lbs_ibss_start_new(priv, params);
2013 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2018 static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2020 struct lbs_private *priv = wiphy_priv(wiphy);
2021 struct cmd_ds_802_11_ad_hoc_stop cmd;
2024 if (dev == priv->mesh_dev)
2027 lbs_deb_enter(LBS_DEB_CFG80211);
2029 memset(&cmd, 0, sizeof(cmd));
2030 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2031 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
2033 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
2034 lbs_mac_event_disconnected(priv, true);
2036 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2042 int lbs_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2043 bool enabled, int timeout)
2045 struct lbs_private *priv = wiphy_priv(wiphy);
2047 if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
2053 /* firmware does not work well with too long latency with power saving
2054 * enabled, so do not enable it if there is only polling, no
2055 * interrupts (like in some sdio hosts which can only
2056 * poll for sdio irqs)
2058 if (priv->is_polling) {
2065 priv->psmode = LBS802_11POWERMODECAM;
2066 if (priv->psstate != PS_STATE_FULL_POWER)
2067 lbs_set_ps_mode(priv,
2068 PS_MODE_ACTION_EXIT_PS,
2072 if (priv->psmode != LBS802_11POWERMODECAM)
2074 priv->psmode = LBS802_11POWERMODEMAX_PSP;
2075 if (priv->connect_status == LBS_CONNECTED)
2076 lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS, true);
2084 static struct cfg80211_ops lbs_cfg80211_ops = {
2085 .set_monitor_channel = lbs_cfg_set_monitor_channel,
2086 .libertas_set_mesh_channel = lbs_cfg_set_mesh_channel,
2087 .scan = lbs_cfg_scan,
2088 .connect = lbs_cfg_connect,
2089 .disconnect = lbs_cfg_disconnect,
2090 .add_key = lbs_cfg_add_key,
2091 .del_key = lbs_cfg_del_key,
2092 .set_default_key = lbs_cfg_set_default_key,
2093 .get_station = lbs_cfg_get_station,
2094 .change_virtual_intf = lbs_change_intf,
2095 .join_ibss = lbs_join_ibss,
2096 .leave_ibss = lbs_leave_ibss,
2097 .set_power_mgmt = lbs_set_power_mgmt,
2102 * At this time lbs_private *priv doesn't even exist, so we just allocate
2103 * memory and don't initialize the wiphy further. This is postponed until we
2104 * can talk to the firmware and happens at registration time in
2105 * lbs_cfg_wiphy_register().
2107 struct wireless_dev *lbs_cfg_alloc(struct device *dev)
2110 struct wireless_dev *wdev;
2112 lbs_deb_enter(LBS_DEB_CFG80211);
2114 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2116 return ERR_PTR(-ENOMEM);
2118 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2120 dev_err(dev, "cannot allocate wiphy\n");
2125 lbs_deb_leave(LBS_DEB_CFG80211);
2130 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2131 return ERR_PTR(ret);
2135 static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2137 struct region_code_mapping {
2142 /* Section 5.17.2 */
2143 static const struct region_code_mapping regmap[] = {
2144 {"US ", 0x10}, /* US FCC */
2145 {"CA ", 0x20}, /* Canada */
2146 {"EU ", 0x30}, /* ETSI */
2147 {"ES ", 0x31}, /* Spain */
2148 {"FR ", 0x32}, /* France */
2149 {"JP ", 0x40}, /* Japan */
2153 lbs_deb_enter(LBS_DEB_CFG80211);
2155 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2156 if (regmap[i].code == priv->regioncode) {
2157 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2161 lbs_deb_leave(LBS_DEB_CFG80211);
2164 static void lbs_reg_notifier(struct wiphy *wiphy,
2165 struct regulatory_request *request)
2167 struct lbs_private *priv = wiphy_priv(wiphy);
2169 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2170 "callback for domain %c%c\n", request->alpha2[0],
2171 request->alpha2[1]);
2173 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
2174 if (lbs_iface_active(priv))
2175 lbs_set_11d_domain_info(priv);
2177 lbs_deb_leave(LBS_DEB_CFG80211);
2181 * This function get's called after lbs_setup_firmware() determined the
2182 * firmware capabities. So we can setup the wiphy according to our
2183 * hardware/firmware.
2185 int lbs_cfg_register(struct lbs_private *priv)
2187 struct wireless_dev *wdev = priv->wdev;
2190 lbs_deb_enter(LBS_DEB_CFG80211);
2192 wdev->wiphy->max_scan_ssids = 1;
2193 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2195 wdev->wiphy->interface_modes =
2196 BIT(NL80211_IFTYPE_STATION) |
2197 BIT(NL80211_IFTYPE_ADHOC);
2198 if (lbs_rtap_supported(priv))
2199 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
2200 if (lbs_mesh_activated(priv))
2201 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);
2203 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2206 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2207 * never seen a firmware without WPA
2209 wdev->wiphy->cipher_suites = cipher_suites;
2210 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
2211 wdev->wiphy->reg_notifier = lbs_reg_notifier;
2213 ret = wiphy_register(wdev->wiphy);
2215 pr_err("cannot register wiphy device\n");
2217 priv->wiphy_registered = true;
2219 ret = register_netdev(priv->dev);
2221 pr_err("cannot register network device\n");
2223 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2225 lbs_cfg_set_regulatory_hint(priv);
2227 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2231 void lbs_scan_deinit(struct lbs_private *priv)
2233 lbs_deb_enter(LBS_DEB_CFG80211);
2234 cancel_delayed_work_sync(&priv->scan_work);
2238 void lbs_cfg_free(struct lbs_private *priv)
2240 struct wireless_dev *wdev = priv->wdev;
2242 lbs_deb_enter(LBS_DEB_CFG80211);
2247 if (priv->wiphy_registered)
2248 wiphy_unregister(wdev->wiphy);
2251 wiphy_free(wdev->wiphy);