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>
24 #define CHAN2G(_channel, _freq, _flags) { \
25 .band = IEEE80211_BAND_2GHZ, \
26 .center_freq = (_freq), \
27 .hw_value = (_channel), \
29 .max_antenna_gain = 0, \
33 static struct ieee80211_channel lbs_2ghz_channels[] = {
50 #define RATETAB_ENT(_rate, _hw_value, _flags) { \
52 .hw_value = (_hw_value), \
57 /* Table 6 in section 3.2.1.1 */
58 static struct ieee80211_rate lbs_rates[] = {
59 RATETAB_ENT(10, 0, 0),
60 RATETAB_ENT(20, 1, 0),
61 RATETAB_ENT(55, 2, 0),
62 RATETAB_ENT(110, 3, 0),
63 RATETAB_ENT(60, 9, 0),
64 RATETAB_ENT(90, 6, 0),
65 RATETAB_ENT(120, 7, 0),
66 RATETAB_ENT(180, 8, 0),
67 RATETAB_ENT(240, 9, 0),
68 RATETAB_ENT(360, 10, 0),
69 RATETAB_ENT(480, 11, 0),
70 RATETAB_ENT(540, 12, 0),
73 static struct ieee80211_supported_band lbs_band_2ghz = {
74 .channels = lbs_2ghz_channels,
75 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
76 .bitrates = lbs_rates,
77 .n_bitrates = ARRAY_SIZE(lbs_rates),
81 static const u32 cipher_suites[] = {
82 WLAN_CIPHER_SUITE_WEP40,
83 WLAN_CIPHER_SUITE_WEP104,
84 WLAN_CIPHER_SUITE_TKIP,
85 WLAN_CIPHER_SUITE_CCMP,
88 /* Time to stay on the channel */
89 #define LBS_DWELL_PASSIVE 100
90 #define LBS_DWELL_ACTIVE 40
93 /***************************************************************************
94 * Misc utility functions
96 * TLVs are Marvell specific. They are very similar to IEs, they have the
97 * same structure: type, length, data*. The only difference: for IEs, the
98 * type and length are u8, but for TLVs they're __le16.
102 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
103 * in the firmware spec
105 static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
110 case NL80211_AUTHTYPE_OPEN_SYSTEM:
111 case NL80211_AUTHTYPE_SHARED_KEY:
114 case NL80211_AUTHTYPE_AUTOMATIC:
115 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
117 case NL80211_AUTHTYPE_NETWORK_EAP:
121 /* silence compiler */
129 * Various firmware commands need the list of supported rates, but with
130 * the hight-bit set for basic rates
132 static int lbs_add_rates(u8 *rates)
136 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
137 u8 rate = lbs_rates[i].bitrate / 5;
138 if (rate == 0x02 || rate == 0x04 ||
139 rate == 0x0b || rate == 0x16)
143 return ARRAY_SIZE(lbs_rates);
147 /***************************************************************************
148 * TLV utility functions
150 * TLVs are Marvell specific. They are very similar to IEs, they have the
151 * same structure: type, length, data*. The only difference: for IEs, the
152 * type and length are u8, but for TLVs they're __le16.
159 #define LBS_MAX_SSID_TLV_SIZE \
160 (sizeof(struct mrvl_ie_header) \
161 + IEEE80211_MAX_SSID_LEN)
163 static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
165 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
170 * ssid 4d 4e 54 45 53 54
172 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
173 ssid_tlv->header.len = cpu_to_le16(ssid_len);
174 memcpy(ssid_tlv->ssid, ssid, ssid_len);
175 return sizeof(ssid_tlv->header) + ssid_len;
180 * Add channel list TLV (section 8.4.2)
182 * Actual channel data comes from priv->wdev->wiphy->channels.
184 #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
185 (sizeof(struct mrvl_ie_header) \
186 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
188 static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
189 int last_channel, int active_scan)
191 int chanscanparamsize = sizeof(struct chanscanparamset) *
192 (last_channel - priv->scan_channel);
194 struct mrvl_ie_header *header = (void *) tlv;
197 * TLV-ID CHANLIST 01 01
199 * channel 00 01 00 00 00 64 00
203 * min scan time 00 00
204 * max scan time 64 00
205 * channel 2 00 02 00 00 00 64 00
209 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
210 header->len = cpu_to_le16(chanscanparamsize);
211 tlv += sizeof(struct mrvl_ie_header);
213 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
215 memset(tlv, 0, chanscanparamsize);
217 while (priv->scan_channel < last_channel) {
218 struct chanscanparamset *param = (void *) tlv;
220 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
222 priv->scan_req->channels[priv->scan_channel]->hw_value;
224 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
226 param->chanscanmode.passivescan = 1;
227 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
229 tlv += sizeof(struct chanscanparamset);
230 priv->scan_channel++;
232 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
239 * The rates are in lbs_bg_rates[], but for the 802.11b
240 * rates the high bit is set. We add this TLV only because
241 * there's a firmware which otherwise doesn't report all
244 #define LBS_MAX_RATES_TLV_SIZE \
245 (sizeof(struct mrvl_ie_header) \
246 + (ARRAY_SIZE(lbs_rates)))
248 /* Adds a TLV with all rates the hardware supports */
249 static int lbs_add_supported_rates_tlv(u8 *tlv)
252 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
257 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
259 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
260 tlv += sizeof(rate_tlv->header);
261 i = lbs_add_rates(tlv);
263 rate_tlv->header.len = cpu_to_le16(i);
264 return sizeof(rate_tlv->header) + i;
267 /* Add common rates from a TLV and return the new end of the TLV */
269 add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
271 int hw, ap, ap_max = ie[1];
274 /* Advance past IE header */
277 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
279 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
280 hw_rate = lbs_rates[hw].bitrate / 5;
281 for (ap = 0; ap < ap_max; ap++) {
282 if (hw_rate == (ie[ap] & 0x7f)) {
284 *nrates = *nrates + 1;
292 * Adds a TLV with all rates the hardware *and* BSS supports.
294 static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
296 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
297 const u8 *rates_eid, *ext_rates_eid;
300 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
301 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
304 * 01 00 TLV_TYPE_RATES
308 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
309 tlv += sizeof(rate_tlv->header);
311 /* Add basic rates */
313 tlv = add_ie_rates(tlv, rates_eid, &n);
315 /* Add extended rates, if any */
317 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
319 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
320 /* Fallback: add basic 802.11b rates */
328 rate_tlv->header.len = cpu_to_le16(n);
329 return sizeof(rate_tlv->header) + n;
336 * This is only needed for newer firmware (V9 and up).
338 #define LBS_MAX_AUTH_TYPE_TLV_SIZE \
339 sizeof(struct mrvl_ie_auth_type)
341 static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
343 struct mrvl_ie_auth_type *auth = (void *) tlv;
346 * 1f 01 TLV_TYPE_AUTH_TYPE
350 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
351 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
352 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
353 return sizeof(*auth);
358 * Add channel (phy ds) TLV
360 #define LBS_MAX_CHANNEL_TLV_SIZE \
361 sizeof(struct mrvl_ie_header)
363 static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
365 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
368 * 03 00 TLV_TYPE_PHY_DS
372 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
373 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
374 ds->channel = channel;
380 * Add (empty) CF param TLV of the form:
382 #define LBS_MAX_CF_PARAM_TLV_SIZE \
383 sizeof(struct mrvl_ie_header)
385 static int lbs_add_cf_param_tlv(u8 *tlv)
387 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
394 * 00 00 cfpmaxduration
395 * 00 00 cfpdurationremaining
397 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
398 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
405 #define LBS_MAX_WPA_TLV_SIZE \
406 (sizeof(struct mrvl_ie_header) \
407 + 128 /* TODO: I guessed the size */)
409 static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
414 * We need just convert an IE to an TLV. IEs use u8 for the header,
418 * but TLVs use __le16 instead:
425 tlv_len = *tlv++ = *ie++;
429 /* the TLV is two bytes larger than the IE */
437 static int lbs_cfg_set_channel(struct wiphy *wiphy,
438 struct net_device *netdev,
439 struct ieee80211_channel *channel,
440 enum nl80211_channel_type channel_type)
442 struct lbs_private *priv = wiphy_priv(wiphy);
445 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
446 channel->center_freq, channel_type);
448 if (channel_type != NL80211_CHAN_NO_HT)
451 ret = lbs_set_channel(priv, channel->hw_value);
454 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
465 * When scanning, the firmware doesn't send a nul packet with the power-safe
466 * bit to the AP. So we cannot stay away from our current channel too long,
467 * otherwise we loose data. So take a "nap" while scanning every other
470 #define LBS_SCAN_BEFORE_NAP 4
474 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
475 * which isn't really an RSSI, as it becomes larger when moving away from
476 * the AP. Anyway, we need to convert that into mBm.
478 #define LBS_SCAN_RSSI_TO_MBM(rssi) \
479 ((-(int)rssi + 3)*100)
481 static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
482 struct cmd_header *resp)
484 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
492 lbs_deb_enter(LBS_DEB_CFG80211);
494 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
496 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
497 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
499 if (scanresp->nr_sets == 0) {
505 * The general layout of the scan response is described in chapter
506 * 5.7.1. Basically we have a common part, then any number of BSS
507 * descriptor sections. Finally we have section with the same number
510 * cmd_ds_802_11_scan_rsp
523 * MrvlIEtypes_TsfFimestamp_t
529 pos = scanresp->bssdesc_and_tlvbuffer;
531 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
532 scanresp->bssdescriptsize);
534 tsfdesc = pos + bsssize;
535 tsfsize = 4 + 8 * scanresp->nr_sets;
536 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
538 /* Validity check: we expect a Marvell-Local TLV */
539 i = get_unaligned_le16(tsfdesc);
541 if (i != TLV_TYPE_TSFTIMESTAMP) {
542 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
547 * Validity check: the TLV holds TSF values with 8 bytes each, so
548 * the size in the TLV must match the nr_sets value
550 i = get_unaligned_le16(tsfdesc);
552 if (i / 8 != scanresp->nr_sets) {
553 lbs_deb_scan("scan response: invalid number of TSF timestamp "
554 "sets (expected %d got %d)\n", scanresp->nr_sets,
559 for (i = 0; i < scanresp->nr_sets; i++) {
568 const u8 *ssid = NULL;
570 DECLARE_SSID_BUF(ssid_buf);
572 int len = get_unaligned_le16(pos);
580 /* Packet time stamp */
582 /* Beacon interval */
583 intvl = get_unaligned_le16(pos);
586 capa = get_unaligned_le16(pos);
589 /* To find out the channel, we must parse the IEs */
592 * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
593 * interval, capabilities
595 ielen = left = len - (6 + 1 + 8 + 2 + 2);
601 if (elen > left || elen == 0) {
602 lbs_deb_scan("scan response: invalid IE fmt\n");
606 if (id == WLAN_EID_DS_PARAMS)
608 if (id == WLAN_EID_SSID) {
616 /* No channel, no luck */
618 struct wiphy *wiphy = priv->wdev->wiphy;
619 int freq = ieee80211_channel_to_frequency(chan_no,
620 IEEE80211_BAND_2GHZ);
621 struct ieee80211_channel *channel =
622 ieee80211_get_channel(wiphy, freq);
624 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
626 bssid, capa, chan_no,
627 print_ssid(ssid_buf, ssid, ssid_len),
628 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
631 !(channel->flags & IEEE80211_CHAN_DISABLED))
632 cfg80211_inform_bss(wiphy, channel,
633 bssid, le64_to_cpu(*(__le64 *)tsfdesc),
634 capa, intvl, ie, ielen,
635 LBS_SCAN_RSSI_TO_MBM(rssi),
638 lbs_deb_scan("scan response: missing BSS channel IE\n");
645 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
651 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
652 * TLV and a rates TLV. Determine the maximum size of them:
654 #define LBS_SCAN_MAX_CMD_SIZE \
655 (sizeof(struct cmd_ds_802_11_scan) \
656 + LBS_MAX_SSID_TLV_SIZE \
657 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
658 + LBS_MAX_RATES_TLV_SIZE)
661 * Assumes priv->scan_req is initialized and valid
662 * Assumes priv->scan_channel is initialized
664 static void lbs_scan_worker(struct work_struct *work)
666 struct lbs_private *priv =
667 container_of(work, struct lbs_private, scan_work.work);
668 struct cmd_ds_802_11_scan *scan_cmd;
669 u8 *tlv; /* pointer into our current, growing TLV storage area */
671 int running, carrier;
673 lbs_deb_enter(LBS_DEB_SCAN);
675 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
676 if (scan_cmd == NULL)
677 goto out_no_scan_cmd;
679 /* prepare fixed part of scan command */
680 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
682 /* stop network while we're away from our main channel */
683 running = !netif_queue_stopped(priv->dev);
684 carrier = netif_carrier_ok(priv->dev);
686 netif_stop_queue(priv->dev);
688 netif_carrier_off(priv->dev);
690 /* prepare fixed part of scan command */
691 tlv = scan_cmd->tlvbuffer;
694 if (priv->scan_req->n_ssids)
695 tlv += lbs_add_ssid_tlv(tlv,
696 priv->scan_req->ssids[0].ssid,
697 priv->scan_req->ssids[0].ssid_len);
699 /* add channel TLVs */
700 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
701 if (last_channel > priv->scan_req->n_channels)
702 last_channel = priv->scan_req->n_channels;
703 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
704 priv->scan_req->n_ssids);
707 tlv += lbs_add_supported_rates_tlv(tlv);
709 if (priv->scan_channel < priv->scan_req->n_channels) {
710 cancel_delayed_work(&priv->scan_work);
712 queue_delayed_work(priv->work_thread, &priv->scan_work,
713 msecs_to_jiffies(300));
716 /* This is the final data we are about to send */
717 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
718 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
720 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
721 tlv - scan_cmd->tlvbuffer);
723 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
724 le16_to_cpu(scan_cmd->hdr.size),
727 if (priv->scan_channel >= priv->scan_req->n_channels) {
729 if (priv->internal_scan)
730 kfree(priv->scan_req);
732 cfg80211_scan_done(priv->scan_req, false);
734 priv->scan_req = NULL;
735 priv->last_scan = jiffies;
738 /* Restart network */
740 netif_carrier_on(priv->dev);
741 if (running && !priv->tx_pending_len)
742 netif_wake_queue(priv->dev);
746 /* Wake up anything waiting on scan completion */
747 if (priv->scan_req == NULL) {
748 lbs_deb_scan("scan: waking up waiters\n");
749 wake_up_all(&priv->scan_q);
753 lbs_deb_leave(LBS_DEB_SCAN);
756 static void _internal_start_scan(struct lbs_private *priv, bool internal,
757 struct cfg80211_scan_request *request)
759 lbs_deb_enter(LBS_DEB_CFG80211);
761 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
762 request->n_ssids, request->n_channels, request->ie_len);
764 priv->scan_channel = 0;
765 queue_delayed_work(priv->work_thread, &priv->scan_work,
766 msecs_to_jiffies(50));
768 priv->scan_req = request;
769 priv->internal_scan = internal;
771 lbs_deb_leave(LBS_DEB_CFG80211);
774 static int lbs_cfg_scan(struct wiphy *wiphy,
775 struct net_device *dev,
776 struct cfg80211_scan_request *request)
778 struct lbs_private *priv = wiphy_priv(wiphy);
781 lbs_deb_enter(LBS_DEB_CFG80211);
783 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
784 /* old scan request not yet processed */
789 _internal_start_scan(priv, false, request);
791 if (priv->surpriseremoved)
795 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
806 void lbs_send_disconnect_notification(struct lbs_private *priv)
808 lbs_deb_enter(LBS_DEB_CFG80211);
810 cfg80211_disconnected(priv->dev,
815 lbs_deb_leave(LBS_DEB_CFG80211);
818 void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
820 lbs_deb_enter(LBS_DEB_CFG80211);
822 cfg80211_michael_mic_failure(priv->dev,
824 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
825 NL80211_KEYTYPE_GROUP :
826 NL80211_KEYTYPE_PAIRWISE,
831 lbs_deb_leave(LBS_DEB_CFG80211);
843 * This removes all WEP keys
845 static int lbs_remove_wep_keys(struct lbs_private *priv)
847 struct cmd_ds_802_11_set_wep cmd;
850 lbs_deb_enter(LBS_DEB_CFG80211);
852 memset(&cmd, 0, sizeof(cmd));
853 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
854 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
855 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
857 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
859 lbs_deb_leave(LBS_DEB_CFG80211);
866 static int lbs_set_wep_keys(struct lbs_private *priv)
868 struct cmd_ds_802_11_set_wep cmd;
872 lbs_deb_enter(LBS_DEB_CFG80211);
879 * action 02 00 ACT_ADD
881 * type for key 1 01 WEP40
885 * key 1 39 39 39 39 39 00 00 00
886 * 00 00 00 00 00 00 00 00
887 * key 2 00 00 00 00 00 00 00 00
888 * 00 00 00 00 00 00 00 00
889 * key 3 00 00 00 00 00 00 00 00
890 * 00 00 00 00 00 00 00 00
891 * key 4 00 00 00 00 00 00 00 00
893 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
894 priv->wep_key_len[2] || priv->wep_key_len[3]) {
895 /* Only set wep keys if we have at least one of them */
896 memset(&cmd, 0, sizeof(cmd));
897 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
898 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
899 cmd.action = cpu_to_le16(CMD_ACT_ADD);
901 for (i = 0; i < 4; i++) {
902 switch (priv->wep_key_len[i]) {
903 case WLAN_KEY_LEN_WEP40:
904 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
906 case WLAN_KEY_LEN_WEP104:
907 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
913 memcpy(cmd.keymaterial[i], priv->wep_key[i],
914 priv->wep_key_len[i]);
917 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
919 /* Otherwise remove all wep keys */
920 ret = lbs_remove_wep_keys(priv);
923 lbs_deb_leave(LBS_DEB_CFG80211);
929 * Enable/Disable RSN status
931 static int lbs_enable_rsn(struct lbs_private *priv, int enable)
933 struct cmd_ds_802_11_enable_rsn cmd;
936 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
943 * action 01 00 ACT_SET
946 memset(&cmd, 0, sizeof(cmd));
947 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
948 cmd.action = cpu_to_le16(CMD_ACT_SET);
949 cmd.enable = cpu_to_le16(enable);
951 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
953 lbs_deb_leave(LBS_DEB_CFG80211);
959 * Set WPA/WPA key material
963 * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
964 * get rid of WEXT, this should go into host.h
967 struct cmd_key_material {
968 struct cmd_header hdr;
971 struct MrvlIEtype_keyParamSet param;
974 static int lbs_set_key_material(struct lbs_private *priv,
977 u8 *key, u16 key_len)
979 struct cmd_key_material cmd;
982 lbs_deb_enter(LBS_DEB_CFG80211);
985 * Example for WPA (TKIP):
992 * TLV type 00 01 key param
994 * key type 01 00 TKIP
995 * key info 06 00 UNICAST | ENABLED
999 memset(&cmd, 0, sizeof(cmd));
1000 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1001 cmd.action = cpu_to_le16(CMD_ACT_SET);
1002 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
1003 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
1004 cmd.param.keytypeid = cpu_to_le16(key_type);
1005 cmd.param.keyinfo = cpu_to_le16(key_info);
1006 cmd.param.keylen = cpu_to_le16(key_len);
1008 memcpy(cmd.param.key, key, key_len);
1010 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
1012 lbs_deb_leave(LBS_DEB_CFG80211);
1018 * Sets the auth type (open, shared, etc) in the firmware. That
1019 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1020 * command doesn't send an authentication frame at all, it just
1021 * stores the auth_type.
1023 static int lbs_set_authtype(struct lbs_private *priv,
1024 struct cfg80211_connect_params *sme)
1026 struct cmd_ds_802_11_authenticate cmd;
1029 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1036 * BSS id 00 13 19 80 da 30
1038 * reserved 00 00 00 00 00 00 00 00 00 00
1040 memset(&cmd, 0, sizeof(cmd));
1041 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1043 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1044 /* convert auth_type */
1045 ret = lbs_auth_to_authtype(sme->auth_type);
1050 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1053 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1059 * Create association request
1061 #define LBS_ASSOC_MAX_CMD_SIZE \
1062 (sizeof(struct cmd_ds_802_11_associate) \
1063 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1064 + LBS_MAX_SSID_TLV_SIZE \
1065 + LBS_MAX_CHANNEL_TLV_SIZE \
1066 + LBS_MAX_CF_PARAM_TLV_SIZE \
1067 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1068 + LBS_MAX_WPA_TLV_SIZE)
1070 static int lbs_associate(struct lbs_private *priv,
1071 struct cfg80211_bss *bss,
1072 struct cfg80211_connect_params *sme)
1074 struct cmd_ds_802_11_associate_response *resp;
1075 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1078 size_t len, resp_ie_len;
1081 u8 *pos = &(cmd->iebuf[0]);
1084 lbs_deb_enter(LBS_DEB_CFG80211);
1096 * BSS id 00 13 19 80 da 30
1097 * capabilities 11 00
1098 * listen interval 0a 00
1099 * beacon interval 00 00
1101 * TLVs xx (up to 512 bytes)
1103 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1105 /* Fill in static fields */
1106 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1107 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1108 cmd->capability = cpu_to_le16(bss->capability);
1111 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1113 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1115 lbs_deb_assoc("no SSID\n");
1117 /* add DS param TLV */
1119 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1121 lbs_deb_assoc("no channel\n");
1123 /* add (empty) CF param TLV */
1124 pos += lbs_add_cf_param_tlv(pos);
1127 tmp = pos + 4; /* skip Marvell IE header */
1128 pos += lbs_add_common_rates_tlv(pos, bss);
1129 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
1131 /* add auth type TLV */
1132 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
1133 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1135 /* add WPA/WPA2 TLV */
1136 if (sme->ie && sme->ie_len)
1137 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1139 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1140 (u16)(pos - (u8 *) &cmd->iebuf);
1141 cmd->hdr.size = cpu_to_le16(len);
1143 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
1144 le16_to_cpu(cmd->hdr.size));
1146 /* store for later use */
1147 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1149 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1153 /* generate connect message to cfg80211 */
1155 resp = (void *) cmd; /* recast for easier field access */
1156 status = le16_to_cpu(resp->statuscode);
1158 /* Older FW versions map the IEEE 802.11 Status Code in the association
1159 * response to the following values returned in resp->statuscode:
1161 * IEEE Status Code Marvell Status Code
1162 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1163 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1164 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1165 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1166 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1167 * others -> 0x0003 ASSOC_RESULT_REFUSED
1169 * Other response codes:
1170 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1171 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1172 * association response from the AP)
1174 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1179 lbs_deb_assoc("invalid association parameters\n");
1180 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1183 lbs_deb_assoc("timer expired while waiting for AP\n");
1184 status = WLAN_STATUS_AUTH_TIMEOUT;
1187 lbs_deb_assoc("association refused by AP\n");
1188 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1191 lbs_deb_assoc("authentication refused by AP\n");
1192 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1195 lbs_deb_assoc("association failure %d\n", status);
1196 /* v5 OLPC firmware does return the AP status code if
1197 * it's not one of the values above. Let that through.
1203 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1204 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
1205 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
1207 resp_ie_len = le16_to_cpu(resp->hdr.size)
1210 cfg80211_connect_result(priv->dev,
1212 sme->ie, sme->ie_len,
1213 resp->iebuf, resp_ie_len,
1218 /* TODO: get rid of priv->connect_status */
1219 priv->connect_status = LBS_CONNECTED;
1220 netif_carrier_on(priv->dev);
1221 if (!priv->tx_pending_len)
1222 netif_tx_wake_all_queues(priv->dev);
1226 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1230 static struct cfg80211_scan_request *
1231 _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1233 struct cfg80211_scan_request *creq = NULL;
1234 int i, n_channels = 0;
1235 enum ieee80211_band band;
1237 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1238 if (wiphy->bands[band])
1239 n_channels += wiphy->bands[band]->n_channels;
1242 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1243 n_channels * sizeof(void *),
1248 /* SSIDs come after channels */
1249 creq->ssids = (void *)&creq->channels[n_channels];
1250 creq->n_channels = n_channels;
1253 /* Scan all available channels */
1255 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1258 if (!wiphy->bands[band])
1261 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1262 /* ignore disabled channels */
1263 if (wiphy->bands[band]->channels[j].flags &
1264 IEEE80211_CHAN_DISABLED)
1267 creq->channels[i] = &wiphy->bands[band]->channels[j];
1272 /* Set real number of channels specified in creq->channels[] */
1273 creq->n_channels = i;
1275 /* Scan for the SSID we're going to connect to */
1276 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1277 creq->ssids[0].ssid_len = sme->ssid_len;
1279 /* No channels found... */
1287 static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1288 struct cfg80211_connect_params *sme)
1290 struct lbs_private *priv = wiphy_priv(wiphy);
1291 struct cfg80211_bss *bss = NULL;
1293 u8 preamble = RADIO_PREAMBLE_SHORT;
1295 lbs_deb_enter(LBS_DEB_CFG80211);
1298 /* Run a scan if one isn't in-progress already and if the last
1299 * scan was done more than 2 seconds ago.
1301 if (priv->scan_req == NULL &&
1302 time_after(jiffies, priv->last_scan + (2 * HZ))) {
1303 struct cfg80211_scan_request *creq;
1305 creq = _new_connect_scan_req(wiphy, sme);
1311 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1312 _internal_start_scan(priv, true, creq);
1315 /* Wait for any in-progress scan to complete */
1316 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1317 wait_event_interruptible_timeout(priv->scan_q,
1318 (priv->scan_req == NULL),
1320 lbs_deb_assoc("assoc: scanning competed\n");
1323 /* Find the BSS we want using available scan results */
1324 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1325 sme->ssid, sme->ssid_len,
1326 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
1328 wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
1333 lbs_deb_assoc("trying %pM\n", bss->bssid);
1334 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1335 sme->crypto.cipher_group,
1336 sme->key_idx, sme->key_len);
1338 /* As this is a new connection, clear locally stored WEP keys */
1339 priv->wep_tx_key = 0;
1340 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1341 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1343 /* set/remove WEP keys */
1344 switch (sme->crypto.cipher_group) {
1345 case WLAN_CIPHER_SUITE_WEP40:
1346 case WLAN_CIPHER_SUITE_WEP104:
1347 /* Store provided WEP keys in priv-> */
1348 priv->wep_tx_key = sme->key_idx;
1349 priv->wep_key_len[sme->key_idx] = sme->key_len;
1350 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1351 /* Set WEP keys and WEP mode */
1352 lbs_set_wep_keys(priv);
1353 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1354 lbs_set_mac_control(priv);
1355 /* No RSN mode for WEP */
1356 lbs_enable_rsn(priv, 0);
1358 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1360 * If we don't have no WEP, no WPA and no WPA2,
1361 * we remove all keys like in the WPA/WPA2 setup,
1362 * we just don't set RSN.
1364 * Therefore: fall-through
1366 case WLAN_CIPHER_SUITE_TKIP:
1367 case WLAN_CIPHER_SUITE_CCMP:
1368 /* Remove WEP keys and WEP mode */
1369 lbs_remove_wep_keys(priv);
1370 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1371 lbs_set_mac_control(priv);
1373 /* clear the WPA/WPA2 keys */
1374 lbs_set_key_material(priv,
1375 KEY_TYPE_ID_WEP, /* doesn't matter */
1376 KEY_INFO_WPA_UNICAST,
1378 lbs_set_key_material(priv,
1379 KEY_TYPE_ID_WEP, /* doesn't matter */
1382 /* RSN mode for WPA/WPA2 */
1383 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1386 wiphy_err(wiphy, "unsupported cipher group 0x%x\n",
1387 sme->crypto.cipher_group);
1392 lbs_set_authtype(priv, sme);
1393 lbs_set_radio(priv, preamble, 1);
1395 /* Do the actual association */
1396 ret = lbs_associate(priv, bss, sme);
1400 cfg80211_put_bss(bss);
1401 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1405 static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1408 struct lbs_private *priv = wiphy_priv(wiphy);
1409 struct cmd_ds_802_11_deauthenticate cmd;
1411 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
1413 /* store for lbs_cfg_ret_disconnect() */
1414 priv->disassoc_reason = reason_code;
1416 memset(&cmd, 0, sizeof(cmd));
1417 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1418 /* Mildly ugly to use a locally store my own BSSID ... */
1419 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1420 cmd.reasoncode = cpu_to_le16(reason_code);
1422 if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
1425 cfg80211_disconnected(priv->dev,
1426 priv->disassoc_reason,
1429 priv->connect_status = LBS_DISCONNECTED;
1435 static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1436 struct net_device *netdev,
1437 u8 key_index, bool unicast,
1440 struct lbs_private *priv = wiphy_priv(wiphy);
1442 lbs_deb_enter(LBS_DEB_CFG80211);
1444 if (key_index != priv->wep_tx_key) {
1445 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1446 priv->wep_tx_key = key_index;
1447 lbs_set_wep_keys(priv);
1454 static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1455 u8 idx, bool pairwise, const u8 *mac_addr,
1456 struct key_params *params)
1458 struct lbs_private *priv = wiphy_priv(wiphy);
1463 lbs_deb_enter(LBS_DEB_CFG80211);
1465 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1466 params->cipher, mac_addr);
1467 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1468 idx, params->key_len);
1469 if (params->key_len)
1470 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1471 params->key, params->key_len);
1473 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1474 if (params->seq_len)
1475 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1476 params->seq, params->seq_len);
1478 switch (params->cipher) {
1479 case WLAN_CIPHER_SUITE_WEP40:
1480 case WLAN_CIPHER_SUITE_WEP104:
1481 /* actually compare if something has changed ... */
1482 if ((priv->wep_key_len[idx] != params->key_len) ||
1483 memcmp(priv->wep_key[idx],
1484 params->key, params->key_len) != 0) {
1485 priv->wep_key_len[idx] = params->key_len;
1486 memcpy(priv->wep_key[idx],
1487 params->key, params->key_len);
1488 lbs_set_wep_keys(priv);
1491 case WLAN_CIPHER_SUITE_TKIP:
1492 case WLAN_CIPHER_SUITE_CCMP:
1493 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1494 ? KEY_INFO_WPA_UNICAST
1495 : KEY_INFO_WPA_MCAST);
1496 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1499 lbs_set_key_material(priv,
1502 params->key, params->key_len);
1505 wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);
1514 static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1515 u8 key_index, bool pairwise, const u8 *mac_addr)
1518 lbs_deb_enter(LBS_DEB_CFG80211);
1520 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1521 key_index, mac_addr);
1524 struct lbs_private *priv = wiphy_priv(wiphy);
1526 * I think can keep this a NO-OP, because:
1528 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1529 * - neither "iw" nor "wpa_supplicant" won't call this during
1530 * an ongoing connection
1531 * - TODO: but I have to check if this is still true when
1532 * I set the AP to periodic re-keying
1533 * - we've not kzallec() something when we've added a key at
1534 * lbs_cfg_connect() or lbs_cfg_add_key().
1536 * This causes lbs_cfg_del_key() only called at disconnect time,
1537 * where we'd just waste time deleting a key that is not going
1538 * to be used anyway.
1540 if (key_index < 3 && priv->wep_key_len[key_index]) {
1541 priv->wep_key_len[key_index] = 0;
1542 lbs_set_wep_keys(priv);
1554 static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1555 u8 *mac, struct station_info *sinfo)
1557 struct lbs_private *priv = wiphy_priv(wiphy);
1562 lbs_deb_enter(LBS_DEB_CFG80211);
1564 sinfo->filled |= STATION_INFO_TX_BYTES |
1565 STATION_INFO_TX_PACKETS |
1566 STATION_INFO_RX_BYTES |
1567 STATION_INFO_RX_PACKETS;
1568 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1569 sinfo->tx_packets = priv->dev->stats.tx_packets;
1570 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1571 sinfo->rx_packets = priv->dev->stats.rx_packets;
1573 /* Get current RSSI */
1574 ret = lbs_get_rssi(priv, &signal, &noise);
1576 sinfo->signal = signal;
1577 sinfo->filled |= STATION_INFO_SIGNAL;
1580 /* Convert priv->cur_rate from hw_value to NL80211 value */
1581 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1582 if (priv->cur_rate == lbs_rates[i].hw_value) {
1583 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1584 sinfo->filled |= STATION_INFO_TX_BITRATE;
1596 * "Site survey", here just current channel and noise level
1599 static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
1600 int idx, struct survey_info *survey)
1602 struct lbs_private *priv = wiphy_priv(wiphy);
1609 lbs_deb_enter(LBS_DEB_CFG80211);
1611 survey->channel = ieee80211_get_channel(wiphy,
1612 ieee80211_channel_to_frequency(priv->channel,
1613 IEEE80211_BAND_2GHZ));
1615 ret = lbs_get_rssi(priv, &signal, &noise);
1617 survey->filled = SURVEY_INFO_NOISE_DBM;
1618 survey->noise = noise;
1621 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1632 static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1633 enum nl80211_iftype type, u32 *flags,
1634 struct vif_params *params)
1636 struct lbs_private *priv = wiphy_priv(wiphy);
1639 lbs_deb_enter(LBS_DEB_CFG80211);
1642 case NL80211_IFTYPE_MONITOR:
1643 ret = lbs_set_monitor_mode(priv, 1);
1645 case NL80211_IFTYPE_STATION:
1646 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
1647 ret = lbs_set_monitor_mode(priv, 0);
1649 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
1651 case NL80211_IFTYPE_ADHOC:
1652 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
1653 ret = lbs_set_monitor_mode(priv, 0);
1655 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
1662 priv->wdev->iftype = type;
1664 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1675 * The firmware needs the following bits masked out of the beacon-derived
1676 * capability field when associating/joining to a BSS:
1677 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1679 #define CAPINFO_MASK (~(0xda00))
1682 static void lbs_join_post(struct lbs_private *priv,
1683 struct cfg80211_ibss_params *params,
1684 u8 *bssid, u16 capability)
1686 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1687 2 + 4 + /* basic rates */
1688 2 + 1 + /* DS parameter */
1690 2 + 8]; /* extended rates */
1693 lbs_deb_enter(LBS_DEB_CFG80211);
1696 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1697 * the real IE from the firmware. So we fabricate a fake IE based on
1698 * what the firmware actually sends (sniffed with wireshark).
1701 *fake++ = WLAN_EID_SSID;
1702 *fake++ = params->ssid_len;
1703 memcpy(fake, params->ssid, params->ssid_len);
1704 fake += params->ssid_len;
1705 /* Fake supported basic rates IE */
1706 *fake++ = WLAN_EID_SUPP_RATES;
1712 /* Fake DS channel IE */
1713 *fake++ = WLAN_EID_DS_PARAMS;
1715 *fake++ = params->channel->hw_value;
1716 /* Fake IBSS params IE */
1717 *fake++ = WLAN_EID_IBSS_PARAMS;
1719 *fake++ = 0; /* ATIM=0 */
1721 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1722 * but I don't know how this could be checked */
1723 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1733 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1735 cfg80211_inform_bss(priv->wdev->wiphy,
1740 params->beacon_interval,
1741 fake_ie, fake - fake_ie,
1744 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1745 priv->wdev->ssid_len = params->ssid_len;
1747 cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
1749 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1750 priv->connect_status = LBS_CONNECTED;
1751 netif_carrier_on(priv->dev);
1752 if (!priv->tx_pending_len)
1753 netif_wake_queue(priv->dev);
1755 lbs_deb_leave(LBS_DEB_CFG80211);
1758 static int lbs_ibss_join_existing(struct lbs_private *priv,
1759 struct cfg80211_ibss_params *params,
1760 struct cfg80211_bss *bss)
1762 const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1763 struct cmd_ds_802_11_ad_hoc_join cmd;
1764 u8 preamble = RADIO_PREAMBLE_SHORT;
1767 lbs_deb_enter(LBS_DEB_CFG80211);
1769 /* TODO: set preamble based on scan result */
1770 ret = lbs_set_radio(priv, preamble, 1);
1775 * Example CMD_802_11_AD_HOC_JOIN command:
1777 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1781 * bssid 02 27 27 97 2f 96
1782 * ssid 49 42 53 53 00 00 00 00
1783 * 00 00 00 00 00 00 00 00
1784 * 00 00 00 00 00 00 00 00
1785 * 00 00 00 00 00 00 00 00
1786 * type 02 CMD_BSS_TYPE_IBSS
1787 * beacon period 64 00
1789 * timestamp 00 00 00 00 00 00 00 00
1790 * localtime 00 00 00 00 00 00 00 00
1794 * reserveed 00 00 00 00
1797 * IE IBSS atim 00 00
1798 * reserved 00 00 00 00
1800 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1801 * fail timeout ff 00
1804 memset(&cmd, 0, sizeof(cmd));
1805 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1807 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1808 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1809 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1810 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1811 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1812 cmd.bss.ds.header.len = 1;
1813 cmd.bss.ds.channel = params->channel->hw_value;
1814 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1815 cmd.bss.ibss.header.len = 2;
1816 cmd.bss.ibss.atimwindow = 0;
1817 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1819 /* set rates to the intersection of our rates and the rates in the
1822 lbs_add_rates(cmd.bss.rates);
1825 u8 rates_max = rates_eid[1];
1826 u8 *rates = cmd.bss.rates;
1827 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1828 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1829 for (i = 0; i < rates_max; i++) {
1830 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1831 u8 rate = rates_eid[i+2];
1832 if (rate == 0x02 || rate == 0x04 ||
1833 rate == 0x0b || rate == 0x16)
1841 /* Only v8 and below support setting this */
1842 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1843 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1844 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1846 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1851 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1859 lbs_join_post(priv, params, bss->bssid, bss->capability);
1862 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1868 static int lbs_ibss_start_new(struct lbs_private *priv,
1869 struct cfg80211_ibss_params *params)
1871 struct cmd_ds_802_11_ad_hoc_start cmd;
1872 struct cmd_ds_802_11_ad_hoc_result *resp =
1873 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1874 u8 preamble = RADIO_PREAMBLE_SHORT;
1878 lbs_deb_enter(LBS_DEB_CFG80211);
1880 ret = lbs_set_radio(priv, preamble, 1);
1885 * Example CMD_802_11_AD_HOC_START command:
1887 * command 2b 00 CMD_802_11_AD_HOC_START
1891 * ssid 54 45 53 54 00 00 00 00
1892 * 00 00 00 00 00 00 00 00
1893 * 00 00 00 00 00 00 00 00
1894 * 00 00 00 00 00 00 00 00
1896 * beacon period 64 00
1900 * IE IBSS atim 00 00
1901 * reserved 00 00 00 00
1905 * reserved 00 00 00 00
1908 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1909 * 0c 12 18 24 30 48 60 6c
1912 memset(&cmd, 0, sizeof(cmd));
1913 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1914 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1915 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1916 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1917 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1918 cmd.ibss.header.len = 2;
1919 cmd.ibss.atimwindow = 0;
1920 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1921 cmd.ds.header.len = 1;
1922 cmd.ds.channel = params->channel->hw_value;
1923 /* Only v8 and below support setting probe delay */
1924 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1925 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1926 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1927 capability = WLAN_CAPABILITY_IBSS;
1928 cmd.capability = cpu_to_le16(capability);
1929 lbs_add_rates(cmd.rates);
1932 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1937 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1944 * bssid 02 2b 7b 0f 86 0e
1946 lbs_join_post(priv, params, resp->bssid, capability);
1949 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1954 static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1955 struct cfg80211_ibss_params *params)
1957 struct lbs_private *priv = wiphy_priv(wiphy);
1959 struct cfg80211_bss *bss;
1960 DECLARE_SSID_BUF(ssid_buf);
1962 lbs_deb_enter(LBS_DEB_CFG80211);
1964 if (!params->channel) {
1969 ret = lbs_set_channel(priv, params->channel->hw_value);
1973 /* Search if someone is beaconing. This assumes that the
1974 * bss list is populated already */
1975 bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
1976 params->ssid, params->ssid_len,
1977 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1980 ret = lbs_ibss_join_existing(priv, params, bss);
1981 cfg80211_put_bss(bss);
1983 ret = lbs_ibss_start_new(priv, params);
1987 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1992 static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1994 struct lbs_private *priv = wiphy_priv(wiphy);
1995 struct cmd_ds_802_11_ad_hoc_stop cmd;
1998 lbs_deb_enter(LBS_DEB_CFG80211);
2000 memset(&cmd, 0, sizeof(cmd));
2001 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2002 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
2004 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
2005 lbs_mac_event_disconnected(priv);
2007 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2018 static struct cfg80211_ops lbs_cfg80211_ops = {
2019 .set_channel = lbs_cfg_set_channel,
2020 .scan = lbs_cfg_scan,
2021 .connect = lbs_cfg_connect,
2022 .disconnect = lbs_cfg_disconnect,
2023 .add_key = lbs_cfg_add_key,
2024 .del_key = lbs_cfg_del_key,
2025 .set_default_key = lbs_cfg_set_default_key,
2026 .get_station = lbs_cfg_get_station,
2027 .dump_survey = lbs_get_survey,
2028 .change_virtual_intf = lbs_change_intf,
2029 .join_ibss = lbs_join_ibss,
2030 .leave_ibss = lbs_leave_ibss,
2035 * At this time lbs_private *priv doesn't even exist, so we just allocate
2036 * memory and don't initialize the wiphy further. This is postponed until we
2037 * can talk to the firmware and happens at registration time in
2038 * lbs_cfg_wiphy_register().
2040 struct wireless_dev *lbs_cfg_alloc(struct device *dev)
2043 struct wireless_dev *wdev;
2045 lbs_deb_enter(LBS_DEB_CFG80211);
2047 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2049 dev_err(dev, "cannot allocate wireless device\n");
2050 return ERR_PTR(-ENOMEM);
2053 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2055 dev_err(dev, "cannot allocate wiphy\n");
2060 lbs_deb_leave(LBS_DEB_CFG80211);
2065 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2066 return ERR_PTR(ret);
2070 static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2072 struct region_code_mapping {
2077 /* Section 5.17.2 */
2078 static const struct region_code_mapping regmap[] = {
2079 {"US ", 0x10}, /* US FCC */
2080 {"CA ", 0x20}, /* Canada */
2081 {"EU ", 0x30}, /* ETSI */
2082 {"ES ", 0x31}, /* Spain */
2083 {"FR ", 0x32}, /* France */
2084 {"JP ", 0x40}, /* Japan */
2088 lbs_deb_enter(LBS_DEB_CFG80211);
2090 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2091 if (regmap[i].code == priv->regioncode) {
2092 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2096 lbs_deb_leave(LBS_DEB_CFG80211);
2101 * This function get's called after lbs_setup_firmware() determined the
2102 * firmware capabities. So we can setup the wiphy according to our
2103 * hardware/firmware.
2105 int lbs_cfg_register(struct lbs_private *priv)
2107 struct wireless_dev *wdev = priv->wdev;
2110 lbs_deb_enter(LBS_DEB_CFG80211);
2112 wdev->wiphy->max_scan_ssids = 1;
2113 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2115 wdev->wiphy->interface_modes =
2116 BIT(NL80211_IFTYPE_STATION) |
2117 BIT(NL80211_IFTYPE_ADHOC);
2118 if (lbs_rtap_supported(priv))
2119 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
2121 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2124 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2125 * never seen a firmware without WPA
2127 wdev->wiphy->cipher_suites = cipher_suites;
2128 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
2129 wdev->wiphy->reg_notifier = lbs_reg_notifier;
2131 ret = wiphy_register(wdev->wiphy);
2133 pr_err("cannot register wiphy device\n");
2135 priv->wiphy_registered = true;
2137 ret = register_netdev(priv->dev);
2139 pr_err("cannot register network device\n");
2141 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2143 lbs_cfg_set_regulatory_hint(priv);
2145 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2149 int lbs_reg_notifier(struct wiphy *wiphy,
2150 struct regulatory_request *request)
2152 struct lbs_private *priv = wiphy_priv(wiphy);
2155 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2156 "callback for domain %c%c\n", request->alpha2[0],
2157 request->alpha2[1]);
2159 ret = lbs_set_11d_domain_info(priv, request, wiphy->bands);
2161 lbs_deb_leave(LBS_DEB_CFG80211);
2165 void lbs_scan_deinit(struct lbs_private *priv)
2167 lbs_deb_enter(LBS_DEB_CFG80211);
2168 cancel_delayed_work_sync(&priv->scan_work);
2172 void lbs_cfg_free(struct lbs_private *priv)
2174 struct wireless_dev *wdev = priv->wdev;
2176 lbs_deb_enter(LBS_DEB_CFG80211);
2181 if (priv->wiphy_registered)
2182 wiphy_unregister(wdev->wiphy);
2185 wiphy_free(wdev->wiphy);