1 /* cfg80211 Interface for prism2_usb module */
3 #include "prism2mgmt.h"
5 /* Prism2 channel/frequency/bitrate declarations */
6 static const struct ieee80211_channel prism2_channels[] = {
7 { .center_freq = 2412 },
8 { .center_freq = 2417 },
9 { .center_freq = 2422 },
10 { .center_freq = 2427 },
11 { .center_freq = 2432 },
12 { .center_freq = 2437 },
13 { .center_freq = 2442 },
14 { .center_freq = 2447 },
15 { .center_freq = 2452 },
16 { .center_freq = 2457 },
17 { .center_freq = 2462 },
18 { .center_freq = 2467 },
19 { .center_freq = 2472 },
20 { .center_freq = 2484 },
23 static const struct ieee80211_rate prism2_rates[] = {
30 #define PRISM2_NUM_CIPHER_SUITES 2
31 static const u32 prism2_cipher_suites[PRISM2_NUM_CIPHER_SUITES] = {
32 WLAN_CIPHER_SUITE_WEP40,
33 WLAN_CIPHER_SUITE_WEP104
36 /* prism2 device private data */
37 struct prism2_wiphy_private {
38 wlandevice_t *wlandev;
40 struct ieee80211_supported_band band;
41 struct ieee80211_channel channels[ARRAY_SIZE(prism2_channels)];
42 struct ieee80211_rate rates[ARRAY_SIZE(prism2_rates)];
44 struct cfg80211_scan_request *scan_request;
47 static const void * const prism2_wiphy_privid = &prism2_wiphy_privid;
49 /* Helper Functions */
50 static int prism2_result2err(int prism2_result)
54 switch (prism2_result) {
55 case P80211ENUM_resultcode_invalid_parameters:
58 case P80211ENUM_resultcode_implementation_failure:
61 case P80211ENUM_resultcode_not_supported:
72 static int prism2_domibset_uint32(wlandevice_t *wlandev, u32 did, u32 data)
74 struct p80211msg_dot11req_mibset msg;
75 p80211item_uint32_t *mibitem =
76 (p80211item_uint32_t *)&msg.mibattribute.data;
78 msg.msgcode = DIDmsg_dot11req_mibset;
82 return p80211req_dorequest(wlandev, (u8 *)&msg);
85 static int prism2_domibset_pstr32(wlandevice_t *wlandev,
86 u32 did, u8 len, const u8 *data)
88 struct p80211msg_dot11req_mibset msg;
89 p80211item_pstr32_t *mibitem =
90 (p80211item_pstr32_t *)&msg.mibattribute.data;
92 msg.msgcode = DIDmsg_dot11req_mibset;
94 mibitem->data.len = len;
95 memcpy(mibitem->data.data, data, len);
97 return p80211req_dorequest(wlandev, (u8 *)&msg);
100 /* The interface functions, called by the cfg80211 layer */
101 static int prism2_change_virtual_intf(struct wiphy *wiphy,
102 struct net_device *dev,
103 enum nl80211_iftype type, u32 *flags,
104 struct vif_params *params)
106 wlandevice_t *wlandev = dev->ml_priv;
112 case NL80211_IFTYPE_ADHOC:
113 if (wlandev->macmode == WLAN_MACMODE_IBSS_STA)
115 wlandev->macmode = WLAN_MACMODE_IBSS_STA;
118 case NL80211_IFTYPE_STATION:
119 if (wlandev->macmode == WLAN_MACMODE_ESS_STA)
121 wlandev->macmode = WLAN_MACMODE_ESS_STA;
125 netdev_warn(dev, "Operation mode: %d not support\n", type);
129 /* Set Operation mode to the PORT TYPE RID */
130 result = prism2_domibset_uint32(wlandev,
131 DIDmib_p2_p2Static_p2CnfPortType,
137 dev->ieee80211_ptr->iftype = type;
143 static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
144 u8 key_index, bool pairwise, const u8 *mac_addr,
145 struct key_params *params)
147 wlandevice_t *wlandev = dev->ml_priv;
153 switch (params->cipher) {
154 case WLAN_CIPHER_SUITE_WEP40:
155 case WLAN_CIPHER_SUITE_WEP104:
156 result = prism2_domibset_uint32(wlandev,
157 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
162 /* send key to driver */
165 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
169 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
173 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
177 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
185 result = prism2_domibset_pstr32(wlandev, did,
186 params->key_len, params->key);
192 pr_debug("Unsupported cipher suite\n");
203 static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
204 u8 key_index, bool pairwise,
205 const u8 *mac_addr, void *cookie,
206 void (*callback)(void *cookie, struct key_params*))
208 wlandevice_t *wlandev = dev->ml_priv;
209 struct key_params params;
212 if (key_index >= NUM_WEPKEYS)
215 len = wlandev->wep_keylens[key_index];
216 memset(¶ms, 0, sizeof(params));
219 params.cipher = WLAN_CIPHER_SUITE_WEP104;
221 params.cipher = WLAN_CIPHER_SUITE_WEP104;
224 params.key_len = len;
225 params.key = wlandev->wep_keys[key_index];
228 callback(cookie, ¶ms);
233 static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
234 u8 key_index, bool pairwise, const u8 *mac_addr)
236 wlandevice_t *wlandev = dev->ml_priv;
241 /* There is no direct way in the hardware (AFAIK) of removing
242 * a key, so we will cheat by setting the key to a bogus value
245 /* send key to driver */
249 DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
254 DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
259 DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
264 DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
272 result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000");
281 static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
282 u8 key_index, bool unicast, bool multicast)
284 wlandevice_t *wlandev = dev->ml_priv;
289 result = prism2_domibset_uint32(wlandev,
290 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
299 static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
300 const u8 *mac, struct station_info *sinfo)
302 wlandevice_t *wlandev = dev->ml_priv;
303 struct p80211msg_lnxreq_commsquality quality;
306 memset(sinfo, 0, sizeof(*sinfo));
308 if ((wlandev == NULL) || (wlandev->msdstate != WLAN_MSD_RUNNING))
311 /* build request message */
312 quality.msgcode = DIDmsg_lnxreq_commsquality;
313 quality.dbm.data = P80211ENUM_truth_true;
314 quality.dbm.status = P80211ENUM_msgitem_status_data_ok;
316 /* send message to nsd */
317 if (wlandev->mlmerequest == NULL)
320 result = wlandev->mlmerequest(wlandev, (struct p80211msg *)&quality);
323 sinfo->txrate.legacy = quality.txrate.data;
324 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
325 sinfo->signal = quality.level.data;
326 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
332 static int prism2_scan(struct wiphy *wiphy,
333 struct cfg80211_scan_request *request)
335 struct net_device *dev;
336 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
337 wlandevice_t *wlandev;
338 struct p80211msg_dot11req_scan msg1;
339 struct p80211msg_dot11req_scan_results msg2;
340 struct cfg80211_bss *bss;
351 dev = request->wdev->netdev;
352 wlandev = dev->ml_priv;
354 if (priv->scan_request && priv->scan_request != request)
357 if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
358 netdev_err(dev, "Can't scan in AP mode\n");
362 priv->scan_request = request;
364 memset(&msg1, 0x00, sizeof(struct p80211msg_dot11req_scan));
365 msg1.msgcode = DIDmsg_dot11req_scan;
366 msg1.bsstype.data = P80211ENUM_bsstype_any;
368 memset(&msg1.bssid.data.data, 0xFF, sizeof(msg1.bssid.data.data));
369 msg1.bssid.data.len = 6;
371 if (request->n_ssids > 0) {
372 msg1.scantype.data = P80211ENUM_scantype_active;
373 msg1.ssid.data.len = request->ssids->ssid_len;
374 memcpy(msg1.ssid.data.data,
375 request->ssids->ssid, request->ssids->ssid_len);
377 msg1.scantype.data = 0;
379 msg1.probedelay.data = 0;
382 (i < request->n_channels) && i < ARRAY_SIZE(prism2_channels);
384 msg1.channellist.data.data[i] =
385 ieee80211_frequency_to_channel(
386 request->channels[i]->center_freq);
387 msg1.channellist.data.len = request->n_channels;
389 msg1.maxchanneltime.data = 250;
390 msg1.minchanneltime.data = 200;
392 result = p80211req_dorequest(wlandev, (u8 *)&msg1);
394 err = prism2_result2err(msg1.resultcode.data);
397 /* Now retrieve scan results */
398 numbss = msg1.numbss.data;
400 for (i = 0; i < numbss; i++) {
403 memset(&msg2, 0, sizeof(msg2));
404 msg2.msgcode = DIDmsg_dot11req_scan_results;
405 msg2.bssindex.data = i;
407 result = p80211req_dorequest(wlandev, (u8 *)&msg2);
409 (msg2.resultcode.data != P80211ENUM_resultcode_success)) {
413 ie_buf[0] = WLAN_EID_SSID;
414 ie_buf[1] = msg2.ssid.data.len;
415 ie_len = ie_buf[1] + 2;
416 memcpy(&ie_buf[2], &(msg2.ssid.data.data), msg2.ssid.data.len);
417 freq = ieee80211_channel_to_frequency(msg2.dschannel.data,
418 IEEE80211_BAND_2GHZ);
419 bss = cfg80211_inform_bss(wiphy,
420 ieee80211_get_channel(wiphy, freq),
421 CFG80211_BSS_FTYPE_UNKNOWN,
422 (const u8 *)&(msg2.bssid.data.data),
423 msg2.timestamp.data, msg2.capinfo.data,
424 msg2.beaconperiod.data,
427 (msg2.signal.data - 65536) * 100, /* Conversion to signed type */
436 cfg80211_put_bss(wiphy, bss);
440 err = prism2_result2err(msg2.resultcode.data);
443 cfg80211_scan_done(request, err ? 1 : 0);
444 priv->scan_request = NULL;
448 static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
450 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
451 wlandevice_t *wlandev = priv->wlandev;
456 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
457 if (wiphy->rts_threshold == -1)
460 data = wiphy->rts_threshold;
462 result = prism2_domibset_uint32(wlandev,
463 DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
471 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
472 if (wiphy->frag_threshold == -1)
475 data = wiphy->frag_threshold;
477 result = prism2_domibset_uint32(wlandev,
478 DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
490 static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
491 struct cfg80211_connect_params *sme)
493 wlandevice_t *wlandev = dev->ml_priv;
494 struct ieee80211_channel *channel = sme->channel;
495 struct p80211msg_lnxreq_autojoin msg_join;
497 int length = sme->ssid_len;
499 int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
500 (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
504 /* Set the channel */
506 chan = ieee80211_frequency_to_channel(channel->center_freq);
507 result = prism2_domibset_uint32(wlandev,
508 DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
514 /* Set the authorization */
515 if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
516 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
517 msg_join.authtype.data = P80211ENUM_authalg_opensystem;
518 else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
519 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
520 msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
523 "Unhandled authorisation type for connect (%d)\n",
526 /* Set the encryption - we only support wep */
529 result = prism2_domibset_uint32(wlandev,
530 DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
535 /* send key to driver */
536 switch (sme->key_idx) {
538 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey0;
542 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey1;
546 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey2;
550 did = DIDmib_dot11smt_dot11WEPDefaultKeysTable_dot11WEPDefaultKey3;
558 result = prism2_domibset_pstr32(wlandev,
565 /* Assume we should set privacy invoked and exclude unencrypted
566 * We could possible use sme->privacy here, but the assumption
567 * seems reasonable anyways
569 result = prism2_domibset_uint32(wlandev,
570 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
571 P80211ENUM_truth_true);
575 result = prism2_domibset_uint32(wlandev,
576 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
577 P80211ENUM_truth_true);
582 /* Assume we should unset privacy invoked
583 * and exclude unencrypted
585 result = prism2_domibset_uint32(wlandev,
586 DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
587 P80211ENUM_truth_false);
591 result = prism2_domibset_uint32(wlandev,
592 DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
593 P80211ENUM_truth_false);
598 /* Now do the actual join. Note there is no way that I can
599 * see to request a specific bssid
601 msg_join.msgcode = DIDmsg_lnxreq_autojoin;
603 memcpy(msg_join.ssid.data.data, sme->ssid, length);
604 msg_join.ssid.data.len = length;
606 result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
615 static int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
618 wlandevice_t *wlandev = dev->ml_priv;
619 struct p80211msg_lnxreq_autojoin msg_join;
623 /* Do a join, with a bogus ssid. Thats the only way I can think of */
624 msg_join.msgcode = DIDmsg_lnxreq_autojoin;
626 memcpy(msg_join.ssid.data.data, "---", 3);
627 msg_join.ssid.data.len = 3;
629 result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
637 static int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
638 struct cfg80211_ibss_params *params)
643 static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
648 static int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
649 enum nl80211_tx_power_setting type, int mbm)
651 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
652 wlandevice_t *wlandev = priv->wlandev;
657 if (type == NL80211_TX_POWER_AUTOMATIC)
660 data = MBM_TO_DBM(mbm);
662 result = prism2_domibset_uint32(wlandev,
663 DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
675 static int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
678 struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
679 wlandevice_t *wlandev = priv->wlandev;
680 struct p80211msg_dot11req_mibget msg;
681 p80211item_uint32_t *mibitem;
685 mibitem = (p80211item_uint32_t *)&msg.mibattribute.data;
686 msg.msgcode = DIDmsg_dot11req_mibget;
688 DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel;
690 result = p80211req_dorequest(wlandev, (u8 *)&msg);
697 *dbm = mibitem->data;
703 /* Interface callback functions, passing data back up to the cfg80211 layer */
704 void prism2_connect_result(wlandevice_t *wlandev, u8 failed)
706 u16 status = failed ?
707 WLAN_STATUS_UNSPECIFIED_FAILURE : WLAN_STATUS_SUCCESS;
709 cfg80211_connect_result(wlandev->netdev, wlandev->bssid,
710 NULL, 0, NULL, 0, status, GFP_KERNEL);
713 void prism2_disconnected(wlandevice_t *wlandev)
715 cfg80211_disconnected(wlandev->netdev, 0, NULL,
716 0, false, GFP_KERNEL);
719 void prism2_roamed(wlandevice_t *wlandev)
721 cfg80211_roamed(wlandev->netdev, NULL, wlandev->bssid,
722 NULL, 0, NULL, 0, GFP_KERNEL);
725 /* Structures for declaring wiphy interface */
726 static const struct cfg80211_ops prism2_usb_cfg_ops = {
727 .change_virtual_intf = prism2_change_virtual_intf,
728 .add_key = prism2_add_key,
729 .get_key = prism2_get_key,
730 .del_key = prism2_del_key,
731 .set_default_key = prism2_set_default_key,
732 .get_station = prism2_get_station,
734 .set_wiphy_params = prism2_set_wiphy_params,
735 .connect = prism2_connect,
736 .disconnect = prism2_disconnect,
737 .join_ibss = prism2_join_ibss,
738 .leave_ibss = prism2_leave_ibss,
739 .set_tx_power = prism2_set_tx_power,
740 .get_tx_power = prism2_get_tx_power,
743 /* Functions to create/free wiphy interface */
744 static struct wiphy *wlan_create_wiphy(struct device *dev, wlandevice_t *wlandev)
747 struct prism2_wiphy_private *priv;
749 wiphy = wiphy_new(&prism2_usb_cfg_ops, sizeof(*priv));
753 priv = wiphy_priv(wiphy);
754 priv->wlandev = wlandev;
755 memcpy(priv->channels, prism2_channels, sizeof(prism2_channels));
756 memcpy(priv->rates, prism2_rates, sizeof(prism2_rates));
757 priv->band.channels = priv->channels;
758 priv->band.n_channels = ARRAY_SIZE(prism2_channels);
759 priv->band.bitrates = priv->rates;
760 priv->band.n_bitrates = ARRAY_SIZE(prism2_rates);
761 priv->band.band = IEEE80211_BAND_2GHZ;
762 priv->band.ht_cap.ht_supported = false;
763 wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
765 set_wiphy_dev(wiphy, dev);
766 wiphy->privid = prism2_wiphy_privid;
767 wiphy->max_scan_ssids = 1;
768 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
769 | BIT(NL80211_IFTYPE_ADHOC);
770 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
771 wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES;
772 wiphy->cipher_suites = prism2_cipher_suites;
774 if (wiphy_register(wiphy) < 0)
780 static void wlan_free_wiphy(struct wiphy *wiphy)
782 wiphy_unregister(wiphy);