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 #include <linux/sched.h>
10 #include <linux/wait.h>
11 #include <linux/slab.h>
12 #include <linux/sched.h>
13 #include <linux/wait.h>
14 #include <linux/ieee80211.h>
15 #include <net/cfg80211.h>
16 #include <asm/unaligned.h>
23 #define CHAN2G(_channel, _freq, _flags) { \
24 .band = IEEE80211_BAND_2GHZ, \
25 .center_freq = (_freq), \
26 .hw_value = (_channel), \
28 .max_antenna_gain = 0, \
32 static struct ieee80211_channel lbs_2ghz_channels[] = {
49 #define RATETAB_ENT(_rate, _hw_value, _flags) { \
51 .hw_value = (_hw_value), \
56 /* Table 6 in section 3.2.1.1 */
57 static struct ieee80211_rate lbs_rates[] = {
58 RATETAB_ENT(10, 0, 0),
59 RATETAB_ENT(20, 1, 0),
60 RATETAB_ENT(55, 2, 0),
61 RATETAB_ENT(110, 3, 0),
62 RATETAB_ENT(60, 9, 0),
63 RATETAB_ENT(90, 6, 0),
64 RATETAB_ENT(120, 7, 0),
65 RATETAB_ENT(180, 8, 0),
66 RATETAB_ENT(240, 9, 0),
67 RATETAB_ENT(360, 10, 0),
68 RATETAB_ENT(480, 11, 0),
69 RATETAB_ENT(540, 12, 0),
72 static struct ieee80211_supported_band lbs_band_2ghz = {
73 .channels = lbs_2ghz_channels,
74 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
75 .bitrates = lbs_rates,
76 .n_bitrates = ARRAY_SIZE(lbs_rates),
80 static const u32 cipher_suites[] = {
81 WLAN_CIPHER_SUITE_WEP40,
82 WLAN_CIPHER_SUITE_WEP104,
83 WLAN_CIPHER_SUITE_TKIP,
84 WLAN_CIPHER_SUITE_CCMP,
87 /* Time to stay on the channel */
88 #define LBS_DWELL_PASSIVE 100
89 #define LBS_DWELL_ACTIVE 40
92 /***************************************************************************
93 * Misc utility functions
95 * TLVs are Marvell specific. They are very similar to IEs, they have the
96 * same structure: type, length, data*. The only difference: for IEs, the
97 * type and length are u8, but for TLVs they're __le16.
101 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
102 * in the firmware spec
104 static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
109 case NL80211_AUTHTYPE_OPEN_SYSTEM:
110 case NL80211_AUTHTYPE_SHARED_KEY:
113 case NL80211_AUTHTYPE_AUTOMATIC:
114 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
116 case NL80211_AUTHTYPE_NETWORK_EAP:
120 /* silence compiler */
127 /* Various firmware commands need the list of supported rates, but with
128 the hight-bit set for basic rates */
129 static int lbs_add_rates(u8 *rates)
133 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
134 u8 rate = lbs_rates[i].bitrate / 5;
135 if (rate == 0x02 || rate == 0x04 ||
136 rate == 0x0b || rate == 0x16)
140 return ARRAY_SIZE(lbs_rates);
144 /***************************************************************************
145 * TLV utility functions
147 * TLVs are Marvell specific. They are very similar to IEs, they have the
148 * same structure: type, length, data*. The only difference: for IEs, the
149 * type and length are u8, but for TLVs they're __le16.
156 #define LBS_MAX_SSID_TLV_SIZE \
157 (sizeof(struct mrvl_ie_header) \
158 + IEEE80211_MAX_SSID_LEN)
160 static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
162 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
167 * ssid 4d 4e 54 45 53 54
169 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
170 ssid_tlv->header.len = cpu_to_le16(ssid_len);
171 memcpy(ssid_tlv->ssid, ssid, ssid_len);
172 return sizeof(ssid_tlv->header) + ssid_len;
177 * Add channel list TLV (section 8.4.2)
179 * Actual channel data comes from priv->wdev->wiphy->channels.
181 #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
182 (sizeof(struct mrvl_ie_header) \
183 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
185 static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
186 int last_channel, int active_scan)
188 int chanscanparamsize = sizeof(struct chanscanparamset) *
189 (last_channel - priv->scan_channel);
191 struct mrvl_ie_header *header = (void *) tlv;
194 * TLV-ID CHANLIST 01 01
196 * channel 00 01 00 00 00 64 00
200 * min scan time 00 00
201 * max scan time 64 00
202 * channel 2 00 02 00 00 00 64 00
206 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
207 header->len = cpu_to_le16(chanscanparamsize);
208 tlv += sizeof(struct mrvl_ie_header);
210 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
212 memset(tlv, 0, chanscanparamsize);
214 while (priv->scan_channel < last_channel) {
215 struct chanscanparamset *param = (void *) tlv;
217 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
219 priv->scan_req->channels[priv->scan_channel]->hw_value;
221 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
223 param->chanscanmode.passivescan = 1;
224 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
226 tlv += sizeof(struct chanscanparamset);
227 priv->scan_channel++;
229 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
236 * The rates are in lbs_bg_rates[], but for the 802.11b
237 * rates the high bit is set. We add this TLV only because
238 * there's a firmware which otherwise doesn't report all
241 #define LBS_MAX_RATES_TLV_SIZE \
242 (sizeof(struct mrvl_ie_header) \
243 + (ARRAY_SIZE(lbs_rates)))
245 /* Adds a TLV with all rates the hardware supports */
246 static int lbs_add_supported_rates_tlv(u8 *tlv)
249 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
254 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
256 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
257 tlv += sizeof(rate_tlv->header);
258 i = lbs_add_rates(tlv);
260 rate_tlv->header.len = cpu_to_le16(i);
261 return sizeof(rate_tlv->header) + i;
264 /* Add common rates from a TLV and return the new end of the TLV */
266 add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
268 int hw, ap, ap_max = ie[1];
271 /* Advance past IE header */
274 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
276 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
277 hw_rate = lbs_rates[hw].bitrate / 5;
278 for (ap = 0; ap < ap_max; ap++) {
279 if (hw_rate == (ie[ap] & 0x7f)) {
281 *nrates = *nrates + 1;
289 * Adds a TLV with all rates the hardware *and* BSS supports.
291 static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
293 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
294 const u8 *rates_eid, *ext_rates_eid;
297 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
298 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
301 * 01 00 TLV_TYPE_RATES
305 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
306 tlv += sizeof(rate_tlv->header);
308 /* Add basic rates */
310 tlv = add_ie_rates(tlv, rates_eid, &n);
312 /* Add extended rates, if any */
314 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
316 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
317 /* Fallback: add basic 802.11b rates */
325 rate_tlv->header.len = cpu_to_le16(n);
326 return sizeof(rate_tlv->header) + n;
333 * This is only needed for newer firmware (V9 and up).
335 #define LBS_MAX_AUTH_TYPE_TLV_SIZE \
336 sizeof(struct mrvl_ie_auth_type)
338 static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
340 struct mrvl_ie_auth_type *auth = (void *) tlv;
343 * 1f 01 TLV_TYPE_AUTH_TYPE
347 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
348 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
349 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
350 return sizeof(*auth);
355 * Add channel (phy ds) TLV
357 #define LBS_MAX_CHANNEL_TLV_SIZE \
358 sizeof(struct mrvl_ie_header)
360 static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
362 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
365 * 03 00 TLV_TYPE_PHY_DS
369 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
370 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
371 ds->channel = channel;
377 * Add (empty) CF param TLV of the form:
379 #define LBS_MAX_CF_PARAM_TLV_SIZE \
380 sizeof(struct mrvl_ie_header)
382 static int lbs_add_cf_param_tlv(u8 *tlv)
384 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
391 * 00 00 cfpmaxduration
392 * 00 00 cfpdurationremaining
394 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
395 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
402 #define LBS_MAX_WPA_TLV_SIZE \
403 (sizeof(struct mrvl_ie_header) \
404 + 128 /* TODO: I guessed the size */)
406 static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
411 * We need just convert an IE to an TLV. IEs use u8 for the header,
415 * but TLVs use __le16 instead:
422 tlv_len = *tlv++ = *ie++;
426 /* the TLV is two bytes larger than the IE */
430 /***************************************************************************
434 static int lbs_cfg_set_channel(struct wiphy *wiphy,
435 struct net_device *netdev,
436 struct ieee80211_channel *channel,
437 enum nl80211_channel_type channel_type)
439 struct lbs_private *priv = wiphy_priv(wiphy);
442 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
443 channel->center_freq, channel_type);
445 if (channel_type != NL80211_CHAN_NO_HT)
448 ret = lbs_set_channel(priv, channel->hw_value);
451 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
457 /***************************************************************************
462 * When scanning, the firmware doesn't send a nul packet with the power-safe
463 * bit to the AP. So we cannot stay away from our current channel too long,
464 * otherwise we loose data. So take a "nap" while scanning every other
467 #define LBS_SCAN_BEFORE_NAP 4
471 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
472 * which isn't really an RSSI, as it becomes larger when moving away from
473 * the AP. Anyway, we need to convert that into mBm.
475 #define LBS_SCAN_RSSI_TO_MBM(rssi) \
476 ((-(int)rssi + 3)*100)
478 static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
479 struct cmd_header *resp)
481 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
489 lbs_deb_enter(LBS_DEB_CFG80211);
491 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
493 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
494 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
496 if (scanresp->nr_sets == 0) {
502 * The general layout of the scan response is described in chapter
503 * 5.7.1. Basically we have a common part, then any number of BSS
504 * descriptor sections. Finally we have section with the same number
507 * cmd_ds_802_11_scan_rsp
520 * MrvlIEtypes_TsfFimestamp_t
526 pos = scanresp->bssdesc_and_tlvbuffer;
528 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
529 scanresp->bssdescriptsize);
531 tsfdesc = pos + bsssize;
532 tsfsize = 4 + 8 * scanresp->nr_sets;
533 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
535 /* Validity check: we expect a Marvell-Local TLV */
536 i = get_unaligned_le16(tsfdesc);
538 if (i != TLV_TYPE_TSFTIMESTAMP) {
539 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
543 /* Validity check: the TLV holds TSF values with 8 bytes each, so
544 * the size in the TLV must match the nr_sets value */
545 i = get_unaligned_le16(tsfdesc);
547 if (i / 8 != scanresp->nr_sets) {
548 lbs_deb_scan("scan response: invalid number of TSF timestamp "
549 "sets (expected %d got %d)\n", scanresp->nr_sets,
554 for (i = 0; i < scanresp->nr_sets; i++) {
563 const u8 *ssid = NULL;
565 DECLARE_SSID_BUF(ssid_buf);
567 int len = get_unaligned_le16(pos);
575 /* Packet time stamp */
577 /* Beacon interval */
578 intvl = get_unaligned_le16(pos);
581 capa = get_unaligned_le16(pos);
584 /* To find out the channel, we must parse the IEs */
586 /* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
587 interval, capabilities */
588 ielen = left = len - (6 + 1 + 8 + 2 + 2);
594 if (elen > left || elen == 0) {
595 lbs_deb_scan("scan response: invalid IE fmt\n");
599 if (id == WLAN_EID_DS_PARAMS)
601 if (id == WLAN_EID_SSID) {
609 /* No channel, no luck */
611 struct wiphy *wiphy = priv->wdev->wiphy;
612 int freq = ieee80211_channel_to_frequency(chan_no);
613 struct ieee80211_channel *channel =
614 ieee80211_get_channel(wiphy, freq);
616 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
618 bssid, capa, chan_no,
619 print_ssid(ssid_buf, ssid, ssid_len),
620 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
623 !(channel->flags & IEEE80211_CHAN_DISABLED))
624 cfg80211_inform_bss(wiphy, channel,
625 bssid, le64_to_cpu(*(__le64 *)tsfdesc),
626 capa, intvl, ie, ielen,
627 LBS_SCAN_RSSI_TO_MBM(rssi),
630 lbs_deb_scan("scan response: missing BSS channel IE\n");
637 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
643 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
644 * TLV and a rates TLV. Determine the maximum size of them:
646 #define LBS_SCAN_MAX_CMD_SIZE \
647 (sizeof(struct cmd_ds_802_11_scan) \
648 + LBS_MAX_SSID_TLV_SIZE \
649 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
650 + LBS_MAX_RATES_TLV_SIZE)
653 * Assumes priv->scan_req is initialized and valid
654 * Assumes priv->scan_channel is initialized
656 static void lbs_scan_worker(struct work_struct *work)
658 struct lbs_private *priv =
659 container_of(work, struct lbs_private, scan_work.work);
660 struct cmd_ds_802_11_scan *scan_cmd;
661 u8 *tlv; /* pointer into our current, growing TLV storage area */
663 int running, carrier;
665 lbs_deb_enter(LBS_DEB_SCAN);
667 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
668 if (scan_cmd == NULL)
669 goto out_no_scan_cmd;
671 /* prepare fixed part of scan command */
672 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
674 /* stop network while we're away from our main channel */
675 running = !netif_queue_stopped(priv->dev);
676 carrier = netif_carrier_ok(priv->dev);
678 netif_stop_queue(priv->dev);
680 netif_carrier_off(priv->dev);
682 /* prepare fixed part of scan command */
683 tlv = scan_cmd->tlvbuffer;
686 if (priv->scan_req->n_ssids)
687 tlv += lbs_add_ssid_tlv(tlv,
688 priv->scan_req->ssids[0].ssid,
689 priv->scan_req->ssids[0].ssid_len);
691 /* add channel TLVs */
692 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
693 if (last_channel > priv->scan_req->n_channels)
694 last_channel = priv->scan_req->n_channels;
695 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
696 priv->scan_req->n_ssids);
699 tlv += lbs_add_supported_rates_tlv(tlv);
701 if (priv->scan_channel < priv->scan_req->n_channels) {
702 cancel_delayed_work(&priv->scan_work);
703 queue_delayed_work(priv->work_thread, &priv->scan_work,
704 msecs_to_jiffies(300));
707 /* This is the final data we are about to send */
708 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
709 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
711 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
712 tlv - scan_cmd->tlvbuffer);
714 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
715 le16_to_cpu(scan_cmd->hdr.size),
718 if (priv->scan_channel >= priv->scan_req->n_channels) {
720 if (priv->internal_scan)
721 kfree(priv->scan_req);
723 cfg80211_scan_done(priv->scan_req, false);
725 priv->scan_req = NULL;
726 priv->last_scan = jiffies;
729 /* Restart network */
731 netif_carrier_on(priv->dev);
732 if (running && !priv->tx_pending_len)
733 netif_wake_queue(priv->dev);
737 /* Wake up anything waiting on scan completion */
738 if (priv->scan_req == NULL) {
739 lbs_deb_scan("scan: waking up waiters\n");
740 wake_up_all(&priv->scan_q);
744 lbs_deb_leave(LBS_DEB_SCAN);
747 static void _internal_start_scan(struct lbs_private *priv, bool internal,
748 struct cfg80211_scan_request *request)
750 lbs_deb_enter(LBS_DEB_CFG80211);
752 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
753 request->n_ssids, request->n_channels, request->ie_len);
755 priv->scan_channel = 0;
756 queue_delayed_work(priv->work_thread, &priv->scan_work,
757 msecs_to_jiffies(50));
759 priv->scan_req = request;
760 priv->internal_scan = internal;
762 lbs_deb_leave(LBS_DEB_CFG80211);
765 static int lbs_cfg_scan(struct wiphy *wiphy,
766 struct net_device *dev,
767 struct cfg80211_scan_request *request)
769 struct lbs_private *priv = wiphy_priv(wiphy);
772 lbs_deb_enter(LBS_DEB_CFG80211);
774 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
775 /* old scan request not yet processed */
780 _internal_start_scan(priv, false, request);
782 if (priv->surpriseremoved)
786 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
793 /***************************************************************************
797 void lbs_send_disconnect_notification(struct lbs_private *priv)
799 lbs_deb_enter(LBS_DEB_CFG80211);
801 cfg80211_disconnected(priv->dev,
806 lbs_deb_leave(LBS_DEB_CFG80211);
809 void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
811 lbs_deb_enter(LBS_DEB_CFG80211);
813 cfg80211_michael_mic_failure(priv->dev,
815 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
816 NL80211_KEYTYPE_GROUP :
817 NL80211_KEYTYPE_PAIRWISE,
822 lbs_deb_leave(LBS_DEB_CFG80211);
828 /***************************************************************************
834 * This removes all WEP keys
836 static int lbs_remove_wep_keys(struct lbs_private *priv)
838 struct cmd_ds_802_11_set_wep cmd;
841 lbs_deb_enter(LBS_DEB_CFG80211);
843 memset(&cmd, 0, sizeof(cmd));
844 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
845 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
846 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
848 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
850 lbs_deb_leave(LBS_DEB_CFG80211);
857 static int lbs_set_wep_keys(struct lbs_private *priv)
859 struct cmd_ds_802_11_set_wep cmd;
863 lbs_deb_enter(LBS_DEB_CFG80211);
870 * action 02 00 ACT_ADD
872 * type for key 1 01 WEP40
876 * key 1 39 39 39 39 39 00 00 00
877 * 00 00 00 00 00 00 00 00
878 * key 2 00 00 00 00 00 00 00 00
879 * 00 00 00 00 00 00 00 00
880 * key 3 00 00 00 00 00 00 00 00
881 * 00 00 00 00 00 00 00 00
882 * key 4 00 00 00 00 00 00 00 00
884 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
885 priv->wep_key_len[2] || priv->wep_key_len[3]) {
886 /* Only set wep keys if we have at least one of them */
887 memset(&cmd, 0, sizeof(cmd));
888 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
889 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
890 cmd.action = cpu_to_le16(CMD_ACT_ADD);
892 for (i = 0; i < 4; i++) {
893 switch (priv->wep_key_len[i]) {
894 case WLAN_KEY_LEN_WEP40:
895 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
897 case WLAN_KEY_LEN_WEP104:
898 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
904 memcpy(cmd.keymaterial[i], priv->wep_key[i],
905 priv->wep_key_len[i]);
908 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
910 /* Otherwise remove all wep keys */
911 ret = lbs_remove_wep_keys(priv);
914 lbs_deb_leave(LBS_DEB_CFG80211);
920 * Enable/Disable RSN status
922 static int lbs_enable_rsn(struct lbs_private *priv, int enable)
924 struct cmd_ds_802_11_enable_rsn cmd;
927 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
934 * action 01 00 ACT_SET
937 memset(&cmd, 0, sizeof(cmd));
938 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
939 cmd.action = cpu_to_le16(CMD_ACT_SET);
940 cmd.enable = cpu_to_le16(enable);
942 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
944 lbs_deb_leave(LBS_DEB_CFG80211);
950 * Set WPA/WPA key material
953 /* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
954 * get rid of WEXT, this should go into host.h */
956 struct cmd_key_material {
957 struct cmd_header hdr;
960 struct MrvlIEtype_keyParamSet param;
963 static int lbs_set_key_material(struct lbs_private *priv,
966 u8 *key, u16 key_len)
968 struct cmd_key_material cmd;
971 lbs_deb_enter(LBS_DEB_CFG80211);
974 * Example for WPA (TKIP):
981 * TLV type 00 01 key param
983 * key type 01 00 TKIP
984 * key info 06 00 UNICAST | ENABLED
988 memset(&cmd, 0, sizeof(cmd));
989 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
990 cmd.action = cpu_to_le16(CMD_ACT_SET);
991 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
992 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
993 cmd.param.keytypeid = cpu_to_le16(key_type);
994 cmd.param.keyinfo = cpu_to_le16(key_info);
995 cmd.param.keylen = cpu_to_le16(key_len);
997 memcpy(cmd.param.key, key, key_len);
999 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
1001 lbs_deb_leave(LBS_DEB_CFG80211);
1007 * Sets the auth type (open, shared, etc) in the firmware. That
1008 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1009 * command doesn't send an authentication frame at all, it just
1010 * stores the auth_type.
1012 static int lbs_set_authtype(struct lbs_private *priv,
1013 struct cfg80211_connect_params *sme)
1015 struct cmd_ds_802_11_authenticate cmd;
1018 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1025 * BSS id 00 13 19 80 da 30
1027 * reserved 00 00 00 00 00 00 00 00 00 00
1029 memset(&cmd, 0, sizeof(cmd));
1030 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1032 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1033 /* convert auth_type */
1034 ret = lbs_auth_to_authtype(sme->auth_type);
1039 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1042 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1048 * Create association request
1050 #define LBS_ASSOC_MAX_CMD_SIZE \
1051 (sizeof(struct cmd_ds_802_11_associate) \
1052 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1053 + LBS_MAX_SSID_TLV_SIZE \
1054 + LBS_MAX_CHANNEL_TLV_SIZE \
1055 + LBS_MAX_CF_PARAM_TLV_SIZE \
1056 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1057 + LBS_MAX_WPA_TLV_SIZE)
1059 static int lbs_associate(struct lbs_private *priv,
1060 struct cfg80211_bss *bss,
1061 struct cfg80211_connect_params *sme)
1063 struct cmd_ds_802_11_associate_response *resp;
1064 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1067 size_t len, resp_ie_len;
1070 u8 *pos = &(cmd->iebuf[0]);
1073 lbs_deb_enter(LBS_DEB_CFG80211);
1085 * BSS id 00 13 19 80 da 30
1086 * capabilities 11 00
1087 * listen interval 0a 00
1088 * beacon interval 00 00
1090 * TLVs xx (up to 512 bytes)
1092 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1094 /* Fill in static fields */
1095 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1096 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1097 cmd->capability = cpu_to_le16(bss->capability);
1100 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1102 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1104 lbs_deb_assoc("no SSID\n");
1106 /* add DS param TLV */
1108 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1110 lbs_deb_assoc("no channel\n");
1112 /* add (empty) CF param TLV */
1113 pos += lbs_add_cf_param_tlv(pos);
1116 tmp = pos + 4; /* skip Marvell IE header */
1117 pos += lbs_add_common_rates_tlv(pos, bss);
1118 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
1120 /* add auth type TLV */
1121 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
1122 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1124 /* add WPA/WPA2 TLV */
1125 if (sme->ie && sme->ie_len)
1126 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1128 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1129 (u16)(pos - (u8 *) &cmd->iebuf);
1130 cmd->hdr.size = cpu_to_le16(len);
1132 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
1133 le16_to_cpu(cmd->hdr.size));
1135 /* store for later use */
1136 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1138 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1142 /* generate connect message to cfg80211 */
1144 resp = (void *) cmd; /* recast for easier field access */
1145 status = le16_to_cpu(resp->statuscode);
1147 /* Older FW versions map the IEEE 802.11 Status Code in the association
1148 * response to the following values returned in resp->statuscode:
1150 * IEEE Status Code Marvell Status Code
1151 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1152 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1153 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1154 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1155 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1156 * others -> 0x0003 ASSOC_RESULT_REFUSED
1158 * Other response codes:
1159 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1160 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1161 * association response from the AP)
1163 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1168 lbs_deb_assoc("invalid association parameters\n");
1169 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1172 lbs_deb_assoc("timer expired while waiting for AP\n");
1173 status = WLAN_STATUS_AUTH_TIMEOUT;
1176 lbs_deb_assoc("association refused by AP\n");
1177 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1180 lbs_deb_assoc("authentication refused by AP\n");
1181 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1184 lbs_deb_assoc("association failure %d\n", status);
1185 /* v5 OLPC firmware does return the AP status code if
1186 * it's not one of the values above. Let that through.
1192 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1193 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
1194 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
1196 resp_ie_len = le16_to_cpu(resp->hdr.size)
1199 cfg80211_connect_result(priv->dev,
1201 sme->ie, sme->ie_len,
1202 resp->iebuf, resp_ie_len,
1207 /* TODO: get rid of priv->connect_status */
1208 priv->connect_status = LBS_CONNECTED;
1209 netif_carrier_on(priv->dev);
1210 if (!priv->tx_pending_len)
1211 netif_tx_wake_all_queues(priv->dev);
1215 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1219 static struct cfg80211_scan_request *
1220 _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1222 struct cfg80211_scan_request *creq = NULL;
1223 int i, n_channels = 0;
1224 enum ieee80211_band band;
1226 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1227 if (wiphy->bands[band])
1228 n_channels += wiphy->bands[band]->n_channels;
1231 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1232 n_channels * sizeof(void *),
1237 /* SSIDs come after channels */
1238 creq->ssids = (void *)&creq->channels[n_channels];
1239 creq->n_channels = n_channels;
1242 /* Scan all available channels */
1244 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1247 if (!wiphy->bands[band])
1250 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1251 /* ignore disabled channels */
1252 if (wiphy->bands[band]->channels[j].flags &
1253 IEEE80211_CHAN_DISABLED)
1256 creq->channels[i] = &wiphy->bands[band]->channels[j];
1261 /* Set real number of channels specified in creq->channels[] */
1262 creq->n_channels = i;
1264 /* Scan for the SSID we're going to connect to */
1265 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1266 creq->ssids[0].ssid_len = sme->ssid_len;
1268 /* No channels found... */
1276 static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1277 struct cfg80211_connect_params *sme)
1279 struct lbs_private *priv = wiphy_priv(wiphy);
1280 struct cfg80211_bss *bss = NULL;
1282 u8 preamble = RADIO_PREAMBLE_SHORT;
1284 lbs_deb_enter(LBS_DEB_CFG80211);
1287 /* Run a scan if one isn't in-progress already and if the last
1288 * scan was done more than 2 seconds ago.
1290 if (priv->scan_req == NULL &&
1291 time_after(jiffies, priv->last_scan + (2 * HZ))) {
1292 struct cfg80211_scan_request *creq;
1294 creq = _new_connect_scan_req(wiphy, sme);
1300 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1301 _internal_start_scan(priv, true, creq);
1304 /* Wait for any in-progress scan to complete */
1305 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1306 wait_event_interruptible_timeout(priv->scan_q,
1307 (priv->scan_req == NULL),
1309 lbs_deb_assoc("assoc: scanning competed\n");
1312 /* Find the BSS we want using available scan results */
1313 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1314 sme->ssid, sme->ssid_len,
1315 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
1317 lbs_pr_err("assoc: bss %pM not in scan results\n",
1322 lbs_deb_assoc("trying %pM\n", bss->bssid);
1323 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1324 sme->crypto.cipher_group,
1325 sme->key_idx, sme->key_len);
1327 /* As this is a new connection, clear locally stored WEP keys */
1328 priv->wep_tx_key = 0;
1329 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1330 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1332 /* set/remove WEP keys */
1333 switch (sme->crypto.cipher_group) {
1334 case WLAN_CIPHER_SUITE_WEP40:
1335 case WLAN_CIPHER_SUITE_WEP104:
1336 /* Store provided WEP keys in priv-> */
1337 priv->wep_tx_key = sme->key_idx;
1338 priv->wep_key_len[sme->key_idx] = sme->key_len;
1339 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1340 /* Set WEP keys and WEP mode */
1341 lbs_set_wep_keys(priv);
1342 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1343 lbs_set_mac_control(priv);
1344 /* No RSN mode for WEP */
1345 lbs_enable_rsn(priv, 0);
1347 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1349 * If we don't have no WEP, no WPA and no WPA2,
1350 * we remove all keys like in the WPA/WPA2 setup,
1351 * we just don't set RSN.
1353 * Therefore: fall-throught
1355 case WLAN_CIPHER_SUITE_TKIP:
1356 case WLAN_CIPHER_SUITE_CCMP:
1357 /* Remove WEP keys and WEP mode */
1358 lbs_remove_wep_keys(priv);
1359 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1360 lbs_set_mac_control(priv);
1362 /* clear the WPA/WPA2 keys */
1363 lbs_set_key_material(priv,
1364 KEY_TYPE_ID_WEP, /* doesn't matter */
1365 KEY_INFO_WPA_UNICAST,
1367 lbs_set_key_material(priv,
1368 KEY_TYPE_ID_WEP, /* doesn't matter */
1371 /* RSN mode for WPA/WPA2 */
1372 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1375 lbs_pr_err("unsupported cipher group 0x%x\n",
1376 sme->crypto.cipher_group);
1381 lbs_set_authtype(priv, sme);
1382 lbs_set_radio(priv, preamble, 1);
1384 /* Do the actual association */
1385 ret = lbs_associate(priv, bss, sme);
1389 cfg80211_put_bss(bss);
1390 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1394 static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1397 struct lbs_private *priv = wiphy_priv(wiphy);
1398 struct cmd_ds_802_11_deauthenticate cmd;
1400 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
1402 /* store for lbs_cfg_ret_disconnect() */
1403 priv->disassoc_reason = reason_code;
1405 memset(&cmd, 0, sizeof(cmd));
1406 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1407 /* Mildly ugly to use a locally store my own BSSID ... */
1408 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1409 cmd.reasoncode = cpu_to_le16(reason_code);
1411 if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
1414 cfg80211_disconnected(priv->dev,
1415 priv->disassoc_reason,
1418 priv->connect_status = LBS_DISCONNECTED;
1424 static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1425 struct net_device *netdev,
1428 struct lbs_private *priv = wiphy_priv(wiphy);
1430 lbs_deb_enter(LBS_DEB_CFG80211);
1432 if (key_index != priv->wep_tx_key) {
1433 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1434 priv->wep_tx_key = key_index;
1435 lbs_set_wep_keys(priv);
1442 static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1443 u8 idx, bool pairwise, const u8 *mac_addr,
1444 struct key_params *params)
1446 struct lbs_private *priv = wiphy_priv(wiphy);
1451 lbs_deb_enter(LBS_DEB_CFG80211);
1453 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1454 params->cipher, mac_addr);
1455 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1456 idx, params->key_len);
1457 if (params->key_len)
1458 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1459 params->key, params->key_len);
1461 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1462 if (params->seq_len)
1463 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1464 params->seq, params->seq_len);
1466 switch (params->cipher) {
1467 case WLAN_CIPHER_SUITE_WEP40:
1468 case WLAN_CIPHER_SUITE_WEP104:
1469 /* actually compare if something has changed ... */
1470 if ((priv->wep_key_len[idx] != params->key_len) ||
1471 memcmp(priv->wep_key[idx],
1472 params->key, params->key_len) != 0) {
1473 priv->wep_key_len[idx] = params->key_len;
1474 memcpy(priv->wep_key[idx],
1475 params->key, params->key_len);
1476 lbs_set_wep_keys(priv);
1479 case WLAN_CIPHER_SUITE_TKIP:
1480 case WLAN_CIPHER_SUITE_CCMP:
1481 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1482 ? KEY_INFO_WPA_UNICAST
1483 : KEY_INFO_WPA_MCAST);
1484 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1487 lbs_set_key_material(priv,
1490 params->key, params->key_len);
1493 lbs_pr_err("unhandled cipher 0x%x\n", params->cipher);
1502 static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1503 u8 key_index, bool pairwise, const u8 *mac_addr)
1506 lbs_deb_enter(LBS_DEB_CFG80211);
1508 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1509 key_index, mac_addr);
1512 struct lbs_private *priv = wiphy_priv(wiphy);
1514 * I think can keep this a NO-OP, because:
1516 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1517 * - neither "iw" nor "wpa_supplicant" won't call this during
1518 * an ongoing connection
1519 * - TODO: but I have to check if this is still true when
1520 * I set the AP to periodic re-keying
1521 * - we've not kzallec() something when we've added a key at
1522 * lbs_cfg_connect() or lbs_cfg_add_key().
1524 * This causes lbs_cfg_del_key() only called at disconnect time,
1525 * where we'd just waste time deleting a key that is not going
1526 * to be used anyway.
1528 if (key_index < 3 && priv->wep_key_len[key_index]) {
1529 priv->wep_key_len[key_index] = 0;
1530 lbs_set_wep_keys(priv);
1538 /***************************************************************************
1542 static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1543 u8 *mac, struct station_info *sinfo)
1545 struct lbs_private *priv = wiphy_priv(wiphy);
1550 lbs_deb_enter(LBS_DEB_CFG80211);
1552 sinfo->filled |= STATION_INFO_TX_BYTES |
1553 STATION_INFO_TX_PACKETS |
1554 STATION_INFO_RX_BYTES |
1555 STATION_INFO_RX_PACKETS;
1556 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1557 sinfo->tx_packets = priv->dev->stats.tx_packets;
1558 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1559 sinfo->rx_packets = priv->dev->stats.rx_packets;
1561 /* Get current RSSI */
1562 ret = lbs_get_rssi(priv, &signal, &noise);
1564 sinfo->signal = signal;
1565 sinfo->filled |= STATION_INFO_SIGNAL;
1568 /* Convert priv->cur_rate from hw_value to NL80211 value */
1569 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1570 if (priv->cur_rate == lbs_rates[i].hw_value) {
1571 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1572 sinfo->filled |= STATION_INFO_TX_BITRATE;
1583 /***************************************************************************
1584 * "Site survey", here just current channel and noise level
1587 static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
1588 int idx, struct survey_info *survey)
1590 struct lbs_private *priv = wiphy_priv(wiphy);
1597 lbs_deb_enter(LBS_DEB_CFG80211);
1599 survey->channel = ieee80211_get_channel(wiphy,
1600 ieee80211_channel_to_frequency(priv->channel));
1602 ret = lbs_get_rssi(priv, &signal, &noise);
1604 survey->filled = SURVEY_INFO_NOISE_DBM;
1605 survey->noise = noise;
1608 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1615 /***************************************************************************
1619 static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1620 enum nl80211_iftype type, u32 *flags,
1621 struct vif_params *params)
1623 struct lbs_private *priv = wiphy_priv(wiphy);
1626 lbs_deb_enter(LBS_DEB_CFG80211);
1629 case NL80211_IFTYPE_MONITOR:
1630 ret = lbs_set_monitor_mode(priv, 1);
1632 case NL80211_IFTYPE_STATION:
1633 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
1634 ret = lbs_set_monitor_mode(priv, 0);
1636 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
1638 case NL80211_IFTYPE_ADHOC:
1639 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
1640 ret = lbs_set_monitor_mode(priv, 0);
1642 ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
1649 priv->wdev->iftype = type;
1651 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1657 /***************************************************************************
1661 /* The firmware needs the following bits masked out of the beacon-derived
1662 * capability field when associating/joining to a BSS:
1663 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1665 #define CAPINFO_MASK (~(0xda00))
1668 static void lbs_join_post(struct lbs_private *priv,
1669 struct cfg80211_ibss_params *params,
1670 u8 *bssid, u16 capability)
1672 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1673 2 + 4 + /* basic rates */
1674 2 + 1 + /* DS parameter */
1676 2 + 8]; /* extended rates */
1679 lbs_deb_enter(LBS_DEB_CFG80211);
1682 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1683 * the real IE from the firmware. So we fabricate a fake IE based on
1684 * what the firmware actually sends (sniffed with wireshark).
1687 *fake++ = WLAN_EID_SSID;
1688 *fake++ = params->ssid_len;
1689 memcpy(fake, params->ssid, params->ssid_len);
1690 fake += params->ssid_len;
1691 /* Fake supported basic rates IE */
1692 *fake++ = WLAN_EID_SUPP_RATES;
1698 /* Fake DS channel IE */
1699 *fake++ = WLAN_EID_DS_PARAMS;
1701 *fake++ = params->channel->hw_value;
1702 /* Fake IBSS params IE */
1703 *fake++ = WLAN_EID_IBSS_PARAMS;
1705 *fake++ = 0; /* ATIM=0 */
1707 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1708 * but I don't know how this could be checked */
1709 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1719 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1721 cfg80211_inform_bss(priv->wdev->wiphy,
1726 params->beacon_interval,
1727 fake_ie, fake - fake_ie,
1730 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1731 priv->wdev->ssid_len = params->ssid_len;
1733 cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
1735 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1736 priv->connect_status = LBS_CONNECTED;
1737 netif_carrier_on(priv->dev);
1738 if (!priv->tx_pending_len)
1739 netif_wake_queue(priv->dev);
1741 lbs_deb_leave(LBS_DEB_CFG80211);
1744 static int lbs_ibss_join_existing(struct lbs_private *priv,
1745 struct cfg80211_ibss_params *params,
1746 struct cfg80211_bss *bss)
1748 const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1749 struct cmd_ds_802_11_ad_hoc_join cmd;
1750 u8 preamble = RADIO_PREAMBLE_SHORT;
1753 lbs_deb_enter(LBS_DEB_CFG80211);
1755 /* TODO: set preamble based on scan result */
1756 ret = lbs_set_radio(priv, preamble, 1);
1761 * Example CMD_802_11_AD_HOC_JOIN command:
1763 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1767 * bssid 02 27 27 97 2f 96
1768 * ssid 49 42 53 53 00 00 00 00
1769 * 00 00 00 00 00 00 00 00
1770 * 00 00 00 00 00 00 00 00
1771 * 00 00 00 00 00 00 00 00
1772 * type 02 CMD_BSS_TYPE_IBSS
1773 * beacon period 64 00
1775 * timestamp 00 00 00 00 00 00 00 00
1776 * localtime 00 00 00 00 00 00 00 00
1780 * reserveed 00 00 00 00
1783 * IE IBSS atim 00 00
1784 * reserved 00 00 00 00
1786 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1787 * fail timeout ff 00
1790 memset(&cmd, 0, sizeof(cmd));
1791 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1793 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1794 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1795 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1796 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1797 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1798 cmd.bss.ds.header.len = 1;
1799 cmd.bss.ds.channel = params->channel->hw_value;
1800 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1801 cmd.bss.ibss.header.len = 2;
1802 cmd.bss.ibss.atimwindow = 0;
1803 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1805 /* set rates to the intersection of our rates and the rates in the
1808 lbs_add_rates(cmd.bss.rates);
1811 u8 rates_max = rates_eid[1];
1812 u8 *rates = cmd.bss.rates;
1813 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1814 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1815 for (i = 0; i < rates_max; i++) {
1816 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1817 u8 rate = rates_eid[i+2];
1818 if (rate == 0x02 || rate == 0x04 ||
1819 rate == 0x0b || rate == 0x16)
1827 /* Only v8 and below support setting this */
1828 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1829 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1830 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1832 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1837 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1845 lbs_join_post(priv, params, bss->bssid, bss->capability);
1848 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1854 static int lbs_ibss_start_new(struct lbs_private *priv,
1855 struct cfg80211_ibss_params *params)
1857 struct cmd_ds_802_11_ad_hoc_start cmd;
1858 struct cmd_ds_802_11_ad_hoc_result *resp =
1859 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1860 u8 preamble = RADIO_PREAMBLE_SHORT;
1864 lbs_deb_enter(LBS_DEB_CFG80211);
1866 ret = lbs_set_radio(priv, preamble, 1);
1871 * Example CMD_802_11_AD_HOC_START command:
1873 * command 2b 00 CMD_802_11_AD_HOC_START
1877 * ssid 54 45 53 54 00 00 00 00
1878 * 00 00 00 00 00 00 00 00
1879 * 00 00 00 00 00 00 00 00
1880 * 00 00 00 00 00 00 00 00
1882 * beacon period 64 00
1886 * IE IBSS atim 00 00
1887 * reserved 00 00 00 00
1891 * reserved 00 00 00 00
1894 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1895 * 0c 12 18 24 30 48 60 6c
1898 memset(&cmd, 0, sizeof(cmd));
1899 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1900 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1901 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1902 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1903 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1904 cmd.ibss.header.len = 2;
1905 cmd.ibss.atimwindow = 0;
1906 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1907 cmd.ds.header.len = 1;
1908 cmd.ds.channel = params->channel->hw_value;
1909 /* Only v8 and below support setting probe delay */
1910 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1911 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1912 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1913 capability = WLAN_CAPABILITY_IBSS;
1914 cmd.capability = cpu_to_le16(capability);
1915 lbs_add_rates(cmd.rates);
1918 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1923 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1930 * bssid 02 2b 7b 0f 86 0e
1932 lbs_join_post(priv, params, resp->bssid, capability);
1935 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1940 static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1941 struct cfg80211_ibss_params *params)
1943 struct lbs_private *priv = wiphy_priv(wiphy);
1945 struct cfg80211_bss *bss;
1946 DECLARE_SSID_BUF(ssid_buf);
1948 lbs_deb_enter(LBS_DEB_CFG80211);
1950 if (!params->channel) {
1955 ret = lbs_set_channel(priv, params->channel->hw_value);
1959 /* Search if someone is beaconing. This assumes that the
1960 * bss list is populated already */
1961 bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
1962 params->ssid, params->ssid_len,
1963 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
1966 ret = lbs_ibss_join_existing(priv, params, bss);
1967 cfg80211_put_bss(bss);
1969 ret = lbs_ibss_start_new(priv, params);
1973 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1978 static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1980 struct lbs_private *priv = wiphy_priv(wiphy);
1981 struct cmd_ds_802_11_ad_hoc_stop cmd;
1984 lbs_deb_enter(LBS_DEB_CFG80211);
1986 memset(&cmd, 0, sizeof(cmd));
1987 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1988 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
1990 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
1991 lbs_mac_event_disconnected(priv);
1993 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2000 /***************************************************************************
2004 static struct cfg80211_ops lbs_cfg80211_ops = {
2005 .set_channel = lbs_cfg_set_channel,
2006 .scan = lbs_cfg_scan,
2007 .connect = lbs_cfg_connect,
2008 .disconnect = lbs_cfg_disconnect,
2009 .add_key = lbs_cfg_add_key,
2010 .del_key = lbs_cfg_del_key,
2011 .set_default_key = lbs_cfg_set_default_key,
2012 .get_station = lbs_cfg_get_station,
2013 .dump_survey = lbs_get_survey,
2014 .change_virtual_intf = lbs_change_intf,
2015 .join_ibss = lbs_join_ibss,
2016 .leave_ibss = lbs_leave_ibss,
2021 * At this time lbs_private *priv doesn't even exist, so we just allocate
2022 * memory and don't initialize the wiphy further. This is postponed until we
2023 * can talk to the firmware and happens at registration time in
2024 * lbs_cfg_wiphy_register().
2026 struct wireless_dev *lbs_cfg_alloc(struct device *dev)
2029 struct wireless_dev *wdev;
2031 lbs_deb_enter(LBS_DEB_CFG80211);
2033 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2035 dev_err(dev, "cannot allocate wireless device\n");
2036 return ERR_PTR(-ENOMEM);
2039 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2041 dev_err(dev, "cannot allocate wiphy\n");
2046 lbs_deb_leave(LBS_DEB_CFG80211);
2051 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2052 return ERR_PTR(ret);
2056 static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2058 struct region_code_mapping {
2063 /* Section 5.17.2 */
2064 static struct region_code_mapping regmap[] = {
2065 {"US ", 0x10}, /* US FCC */
2066 {"CA ", 0x20}, /* Canada */
2067 {"EU ", 0x30}, /* ETSI */
2068 {"ES ", 0x31}, /* Spain */
2069 {"FR ", 0x32}, /* France */
2070 {"JP ", 0x40}, /* Japan */
2074 lbs_deb_enter(LBS_DEB_CFG80211);
2076 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2077 if (regmap[i].code == priv->regioncode) {
2078 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2082 lbs_deb_leave(LBS_DEB_CFG80211);
2087 * This function get's called after lbs_setup_firmware() determined the
2088 * firmware capabities. So we can setup the wiphy according to our
2089 * hardware/firmware.
2091 int lbs_cfg_register(struct lbs_private *priv)
2093 struct wireless_dev *wdev = priv->wdev;
2096 lbs_deb_enter(LBS_DEB_CFG80211);
2098 wdev->wiphy->max_scan_ssids = 1;
2099 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2101 wdev->wiphy->interface_modes =
2102 BIT(NL80211_IFTYPE_STATION) |
2103 BIT(NL80211_IFTYPE_ADHOC);
2104 if (lbs_rtap_supported(priv))
2105 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
2107 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2110 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2111 * never seen a firmware without WPA
2113 wdev->wiphy->cipher_suites = cipher_suites;
2114 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
2115 wdev->wiphy->reg_notifier = lbs_reg_notifier;
2117 ret = wiphy_register(wdev->wiphy);
2119 lbs_pr_err("cannot register wiphy device\n");
2121 priv->wiphy_registered = true;
2123 ret = register_netdev(priv->dev);
2125 lbs_pr_err("cannot register network device\n");
2127 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2129 lbs_cfg_set_regulatory_hint(priv);
2131 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2135 int lbs_reg_notifier(struct wiphy *wiphy,
2136 struct regulatory_request *request)
2138 struct lbs_private *priv = wiphy_priv(wiphy);
2141 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2142 "callback for domain %c%c\n", request->alpha2[0],
2143 request->alpha2[1]);
2145 ret = lbs_set_11d_domain_info(priv, request, wiphy->bands);
2147 lbs_deb_leave(LBS_DEB_CFG80211);
2151 void lbs_scan_deinit(struct lbs_private *priv)
2153 lbs_deb_enter(LBS_DEB_CFG80211);
2154 cancel_delayed_work_sync(&priv->scan_work);
2158 void lbs_cfg_free(struct lbs_private *priv)
2160 struct wireless_dev *wdev = priv->wdev;
2162 lbs_deb_enter(LBS_DEB_CFG80211);
2167 if (priv->wiphy_registered)
2168 wiphy_unregister(wdev->wiphy);
2171 wiphy_free(wdev->wiphy);