1 files changed, 718 insertions, 0 deletions

diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
new file mode 100644
index 0000000000..471bb31017
--- /dev/null
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -0,0 +1,718 @@
+// SPDX-License-Identifier: GPL-2.0
+/* cfg80211 Interface for prism2_usb module */
+#include "hfa384x.h"
+#include "prism2mgmt.h"
+
+/* Prism2 channel/frequency/bitrate declarations */
+static const struct ieee80211_channel prism2_channels[] = {
+	{ .center_freq = 2412 },
+	{ .center_freq = 2417 },
+	{ .center_freq = 2422 },
+	{ .center_freq = 2427 },
+	{ .center_freq = 2432 },
+	{ .center_freq = 2437 },
+	{ .center_freq = 2442 },
+	{ .center_freq = 2447 },
+	{ .center_freq = 2452 },
+	{ .center_freq = 2457 },
+	{ .center_freq = 2462 },
+	{ .center_freq = 2467 },
+	{ .center_freq = 2472 },
+	{ .center_freq = 2484 },
+};
+
+static const struct ieee80211_rate prism2_rates[] = {
+	{ .bitrate = 10 },
+	{ .bitrate = 20 },
+	{ .bitrate = 55 },
+	{ .bitrate = 110 }
+};
+
+#define PRISM2_NUM_CIPHER_SUITES 2
+static const u32 prism2_cipher_suites[PRISM2_NUM_CIPHER_SUITES] = {
+	WLAN_CIPHER_SUITE_WEP40,
+	WLAN_CIPHER_SUITE_WEP104
+};
+
+/* prism2 device private data */
+struct prism2_wiphy_private {
+	struct wlandevice *wlandev;
+
+	struct ieee80211_supported_band band;
+	struct ieee80211_channel channels[ARRAY_SIZE(prism2_channels)];
+	struct ieee80211_rate rates[ARRAY_SIZE(prism2_rates)];
+
+	struct cfg80211_scan_request *scan_request;
+};
+
+static const void * const prism2_wiphy_privid = &prism2_wiphy_privid;
+
+/* Helper Functions */
+static int prism2_result2err(int prism2_result)
+{
+	int err = 0;
+
+	switch (prism2_result) {
+	case P80211ENUM_resultcode_invalid_parameters:
+		err = -EINVAL;
+		break;
+	case P80211ENUM_resultcode_implementation_failure:
+		err = -EIO;
+		break;
+	case P80211ENUM_resultcode_not_supported:
+		err = -EOPNOTSUPP;
+		break;
+	default:
+		err = 0;
+		break;
+	}
+
+	return err;
+}
+
+static int prism2_domibset_uint32(struct wlandevice *wlandev,
+				  u32 did, u32 data)
+{
+	struct p80211msg_dot11req_mibset msg;
+	struct p80211item_uint32 *mibitem =
+			(struct p80211item_uint32 *)&msg.mibattribute.data;
+
+	msg.msgcode = DIDMSG_DOT11REQ_MIBSET;
+	mibitem->did = did;
+	mibitem->data = data;
+
+	return p80211req_dorequest(wlandev, (u8 *)&msg);
+}
+
+static int prism2_domibset_pstr32(struct wlandevice *wlandev,
+				  u32 did, u8 len, const u8 *data)
+{
+	struct p80211msg_dot11req_mibset msg;
+	struct p80211item_pstr32 *mibitem =
+			(struct p80211item_pstr32 *)&msg.mibattribute.data;
+
+	msg.msgcode = DIDMSG_DOT11REQ_MIBSET;
+	mibitem->did = did;
+	mibitem->data.len = len;
+	memcpy(mibitem->data.data, data, len);
+
+	return p80211req_dorequest(wlandev, (u8 *)&msg);
+}
+
+/* The interface functions, called by the cfg80211 layer */
+static int prism2_change_virtual_intf(struct wiphy *wiphy,
+				      struct net_device *dev,
+				      enum nl80211_iftype type,
+				      struct vif_params *params)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	u32 data;
+	int result;
+	int err = 0;
+
+	switch (type) {
+	case NL80211_IFTYPE_ADHOC:
+		if (wlandev->macmode == WLAN_MACMODE_IBSS_STA)
+			goto exit;
+		wlandev->macmode = WLAN_MACMODE_IBSS_STA;
+		data = 0;
+		break;
+	case NL80211_IFTYPE_STATION:
+		if (wlandev->macmode == WLAN_MACMODE_ESS_STA)
+			goto exit;
+		wlandev->macmode = WLAN_MACMODE_ESS_STA;
+		data = 1;
+		break;
+	default:
+		netdev_warn(dev, "Operation mode: %d not support\n", type);
+		return -EOPNOTSUPP;
+	}
+
+	/* Set Operation mode to the PORT TYPE RID */
+	result = prism2_domibset_uint32(wlandev,
+					DIDMIB_P2_STATIC_CNFPORTTYPE,
+					data);
+
+	if (result)
+		err = -EFAULT;
+
+	dev->ieee80211_ptr->iftype = type;
+
+exit:
+	return err;
+}
+
+static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
+			  int link_id, u8 key_index, bool pairwise,
+			  const u8 *mac_addr, struct key_params *params)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	u32 did;
+
+	if (key_index >= NUM_WEPKEYS)
+		return -EINVAL;
+
+	if (params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
+	    params->cipher != WLAN_CIPHER_SUITE_WEP104) {
+		pr_debug("Unsupported cipher suite\n");
+		return -EFAULT;
+	}
+
+	if (prism2_domibset_uint32(wlandev,
+				   DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
+				   key_index))
+		return -EFAULT;
+
+	/* send key to driver */
+	did = didmib_dot11smt_wepdefaultkeystable_key(key_index + 1);
+
+	if (prism2_domibset_pstr32(wlandev, did, params->key_len, params->key))
+		return -EFAULT;
+	return 0;
+}
+
+static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
+			  int link_id, u8 key_index, bool pairwise,
+			  const u8 *mac_addr, void *cookie,
+			  void (*callback)(void *cookie, struct key_params*))
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	struct key_params params;
+	int len;
+
+	if (key_index >= NUM_WEPKEYS)
+		return -EINVAL;
+
+	len = wlandev->wep_keylens[key_index];
+	memset(&params, 0, sizeof(params));
+
+	if (len == 13)
+		params.cipher = WLAN_CIPHER_SUITE_WEP104;
+	else if (len == 5)
+		params.cipher = WLAN_CIPHER_SUITE_WEP104;
+	else
+		return -ENOENT;
+	params.key_len = len;
+	params.key = wlandev->wep_keys[key_index];
+	params.seq_len = 0;
+
+	callback(cookie, &params);
+
+	return 0;
+}
+
+static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
+			  int link_id, u8 key_index, bool pairwise,
+			  const u8 *mac_addr)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	u32 did;
+	int err = 0;
+	int result = 0;
+
+	/* There is no direct way in the hardware (AFAIK) of removing
+	 * a key, so we will cheat by setting the key to a bogus value
+	 */
+
+	if (key_index >= NUM_WEPKEYS)
+		return -EINVAL;
+
+	/* send key to driver */
+	did = didmib_dot11smt_wepdefaultkeystable_key(key_index + 1);
+	result = prism2_domibset_pstr32(wlandev, did, 13, "0000000000000");
+
+	if (result)
+		err = -EFAULT;
+
+	return err;
+}
+
+static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
+				  int link_id, u8 key_index, bool unicast,
+				  bool multicast)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+
+	return  prism2_domibset_uint32(wlandev,
+				       DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
+				       key_index);
+}
+
+static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
+			      const u8 *mac, struct station_info *sinfo)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	struct p80211msg_lnxreq_commsquality quality;
+	int result;
+
+	memset(sinfo, 0, sizeof(*sinfo));
+
+	if (!wlandev || (wlandev->msdstate != WLAN_MSD_RUNNING))
+		return -EOPNOTSUPP;
+
+	/* build request message */
+	quality.msgcode = DIDMSG_LNXREQ_COMMSQUALITY;
+	quality.dbm.data = P80211ENUM_truth_true;
+	quality.dbm.status = P80211ENUM_msgitem_status_data_ok;
+
+	/* send message to nsd */
+	if (!wlandev->mlmerequest)
+		return -EOPNOTSUPP;
+
+	result = wlandev->mlmerequest(wlandev, (struct p80211msg *)&quality);
+
+	if (result == 0) {
+		sinfo->txrate.legacy = quality.txrate.data;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
+		sinfo->signal = quality.level.data;
+		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
+	}
+
+	return result;
+}
+
+static int prism2_scan(struct wiphy *wiphy,
+		       struct cfg80211_scan_request *request)
+{
+	struct net_device *dev;
+	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
+	struct wlandevice *wlandev;
+	struct p80211msg_dot11req_scan msg1;
+	struct p80211msg_dot11req_scan_results *msg2;
+	struct cfg80211_bss *bss;
+	struct cfg80211_scan_info info = {};
+
+	int result;
+	int err = 0;
+	int numbss = 0;
+	int i = 0;
+	u8 ie_buf[46];
+	int ie_len;
+
+	if (!request)
+		return -EINVAL;
+
+	dev = request->wdev->netdev;
+	wlandev = dev->ml_priv;
+
+	if (priv->scan_request && priv->scan_request != request)
+		return -EBUSY;
+
+	if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
+		netdev_err(dev, "Can't scan in AP mode\n");
+		return -EOPNOTSUPP;
+	}
+
+	msg2 = kzalloc(sizeof(*msg2), GFP_KERNEL);
+	if (!msg2)
+		return -ENOMEM;
+
+	priv->scan_request = request;
+
+	memset(&msg1, 0x00, sizeof(msg1));
+	msg1.msgcode = DIDMSG_DOT11REQ_SCAN;
+	msg1.bsstype.data = P80211ENUM_bsstype_any;
+
+	memset(&msg1.bssid.data.data, 0xFF, sizeof(msg1.bssid.data.data));
+	msg1.bssid.data.len = 6;
+
+	if (request->n_ssids > 0) {
+		msg1.scantype.data = P80211ENUM_scantype_active;
+		msg1.ssid.data.len = request->ssids->ssid_len;
+		memcpy(msg1.ssid.data.data,
+		       request->ssids->ssid, request->ssids->ssid_len);
+	} else {
+		msg1.scantype.data = 0;
+	}
+	msg1.probedelay.data = 0;
+
+	for (i = 0;
+		(i < request->n_channels) && i < ARRAY_SIZE(prism2_channels);
+		i++)
+		msg1.channellist.data.data[i] =
+			ieee80211_frequency_to_channel(request->channels[i]->center_freq);
+	msg1.channellist.data.len = request->n_channels;
+
+	msg1.maxchanneltime.data = 250;
+	msg1.minchanneltime.data = 200;
+
+	result = p80211req_dorequest(wlandev, (u8 *)&msg1);
+	if (result) {
+		err = prism2_result2err(msg1.resultcode.data);
+		goto exit;
+	}
+	/* Now retrieve scan results */
+	numbss = msg1.numbss.data;
+
+	for (i = 0; i < numbss; i++) {
+		int freq;
+
+		msg2->msgcode = DIDMSG_DOT11REQ_SCAN_RESULTS;
+		msg2->bssindex.data = i;
+
+		result = p80211req_dorequest(wlandev, (u8 *)&msg2);
+		if ((result != 0) ||
+		    (msg2->resultcode.data != P80211ENUM_resultcode_success)) {
+			break;
+		}
+
+		ie_buf[0] = WLAN_EID_SSID;
+		ie_buf[1] = msg2->ssid.data.len;
+		ie_len = ie_buf[1] + 2;
+		memcpy(&ie_buf[2], &msg2->ssid.data.data, msg2->ssid.data.len);
+		freq = ieee80211_channel_to_frequency(msg2->dschannel.data,
+						      NL80211_BAND_2GHZ);
+		bss = cfg80211_inform_bss(wiphy,
+					  ieee80211_get_channel(wiphy, freq),
+					  CFG80211_BSS_FTYPE_UNKNOWN,
+					  (const u8 *)&msg2->bssid.data.data,
+					  msg2->timestamp.data, msg2->capinfo.data,
+					  msg2->beaconperiod.data,
+					  ie_buf,
+					  ie_len,
+					  (msg2->signal.data - 65536) * 100, /* Conversion to signed type */
+					  GFP_KERNEL);
+
+		if (!bss) {
+			err = -ENOMEM;
+			goto exit;
+		}
+
+		cfg80211_put_bss(wiphy, bss);
+	}
+
+	if (result)
+		err = prism2_result2err(msg2->resultcode.data);
+
+exit:
+	info.aborted = !!(err);
+	cfg80211_scan_done(request, &info);
+	priv->scan_request = NULL;
+	kfree(msg2);
+	return err;
+}
+
+static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
+	struct wlandevice *wlandev = priv->wlandev;
+	u32 data;
+	int result;
+	int err = 0;
+
+	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
+		if (wiphy->rts_threshold == -1)
+			data = 2347;
+		else
+			data = wiphy->rts_threshold;
+
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11MAC_OPERATIONTABLE_RTSTHRESHOLD,
+						data);
+		if (result) {
+			err = -EFAULT;
+			goto exit;
+		}
+	}
+
+	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
+		if (wiphy->frag_threshold == -1)
+			data = 2346;
+		else
+			data = wiphy->frag_threshold;
+
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11MAC_OPERATIONTABLE_FRAGMENTATIONTHRESHOLD,
+						data);
+		if (result) {
+			err = -EFAULT;
+			goto exit;
+		}
+	}
+
+exit:
+	return err;
+}
+
+static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
+			  struct cfg80211_connect_params *sme)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	struct ieee80211_channel *channel = sme->channel;
+	struct p80211msg_lnxreq_autojoin msg_join;
+	u32 did;
+	int length = sme->ssid_len;
+	int chan = -1;
+	int is_wep = (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) ||
+	    (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104);
+	int result;
+	int err = 0;
+
+	/* Set the channel */
+	if (channel) {
+		chan = ieee80211_frequency_to_channel(channel->center_freq);
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11PHY_DSSSTABLE_CURRENTCHANNEL,
+						chan);
+		if (result)
+			goto exit;
+	}
+
+	/* Set the authorization */
+	if ((sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) ||
+	    ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && !is_wep))
+		msg_join.authtype.data = P80211ENUM_authalg_opensystem;
+	else if ((sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) ||
+		 ((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
+		msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
+	else
+		netdev_warn(dev,
+			    "Unhandled authorisation type for connect (%d)\n",
+			    sme->auth_type);
+
+	/* Set the encryption - we only support wep */
+	if (is_wep) {
+		if (sme->key) {
+			if (sme->key_idx >= NUM_WEPKEYS)
+				return -EINVAL;
+
+			result = prism2_domibset_uint32(wlandev,
+							DIDMIB_DOT11SMT_PRIVACYTABLE_WEPDEFAULTKEYID,
+				sme->key_idx);
+			if (result)
+				goto exit;
+
+			/* send key to driver */
+			did = didmib_dot11smt_wepdefaultkeystable_key(sme->key_idx + 1);
+			result = prism2_domibset_pstr32(wlandev,
+							did, sme->key_len,
+							(u8 *)sme->key);
+			if (result)
+				goto exit;
+		}
+
+		/* Assume we should set privacy invoked and exclude unencrypted
+		 * We could possible use sme->privacy here, but the assumption
+		 * seems reasonable anyways
+		 */
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
+						P80211ENUM_truth_true);
+		if (result)
+			goto exit;
+
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
+						P80211ENUM_truth_true);
+		if (result)
+			goto exit;
+
+	} else {
+		/* Assume we should unset privacy invoked
+		 * and exclude unencrypted
+		 */
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11SMT_PRIVACYTABLE_PRIVACYINVOKED,
+						P80211ENUM_truth_false);
+		if (result)
+			goto exit;
+
+		result = prism2_domibset_uint32(wlandev,
+						DIDMIB_DOT11SMT_PRIVACYTABLE_EXCLUDEUNENCRYPTED,
+						P80211ENUM_truth_false);
+		if (result)
+			goto exit;
+	}
+
+	/* Now do the actual join. Note there is no way that I can
+	 * see to request a specific bssid
+	 */
+	msg_join.msgcode = DIDMSG_LNXREQ_AUTOJOIN;
+
+	memcpy(msg_join.ssid.data.data, sme->ssid, length);
+	msg_join.ssid.data.len = length;
+
+	result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
+
+exit:
+	if (result)
+		err = -EFAULT;
+
+	return err;
+}
+
+static int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
+			     u16 reason_code)
+{
+	struct wlandevice *wlandev = dev->ml_priv;
+	struct p80211msg_lnxreq_autojoin msg_join;
+	int result;
+	int err = 0;
+
+	/* Do a join, with a bogus ssid. Thats the only way I can think of */
+	msg_join.msgcode = DIDMSG_LNXREQ_AUTOJOIN;
+
+	memcpy(msg_join.ssid.data.data, "---", 3);
+	msg_join.ssid.data.len = 3;
+
+	result = p80211req_dorequest(wlandev, (u8 *)&msg_join);
+
+	if (result)
+		err = -EFAULT;
+
+	return err;
+}
+
+static int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
+			    struct cfg80211_ibss_params *params)
+{
+	return -EOPNOTSUPP;
+}
+
+static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
+{
+	return -EOPNOTSUPP;
+}
+
+static int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+			       enum nl80211_tx_power_setting type, int mbm)
+{
+	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
+	struct wlandevice *wlandev = priv->wlandev;
+	u32 data;
+	int result;
+	int err = 0;
+
+	if (type == NL80211_TX_POWER_AUTOMATIC)
+		data = 30;
+	else
+		data = MBM_TO_DBM(mbm);
+
+	result = prism2_domibset_uint32(wlandev,
+					DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL,
+		data);
+
+	if (result) {
+		err = -EFAULT;
+		goto exit;
+	}
+
+exit:
+	return err;
+}
+
+static int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+			       int *dbm)
+{
+	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
+	struct wlandevice *wlandev = priv->wlandev;
+	struct p80211msg_dot11req_mibget msg;
+	struct p80211item_uint32 *mibitem;
+	int result;
+	int err = 0;
+
+	mibitem = (struct p80211item_uint32 *)&msg.mibattribute.data;
+	msg.msgcode = DIDMSG_DOT11REQ_MIBGET;
+	mibitem->did = DIDMIB_DOT11PHY_TXPOWERTABLE_CURRENTTXPOWERLEVEL;
+
+	result = p80211req_dorequest(wlandev, (u8 *)&msg);
+
+	if (result) {
+		err = -EFAULT;
+		goto exit;
+	}
+
+	*dbm = mibitem->data;
+
+exit:
+	return err;
+}
+
+/* Interface callback functions, passing data back up to the cfg80211 layer */
+void prism2_connect_result(struct wlandevice *wlandev, u8 failed)
+{
+	u16 status = failed ?
+		     WLAN_STATUS_UNSPECIFIED_FAILURE : WLAN_STATUS_SUCCESS;
+
+	cfg80211_connect_result(wlandev->netdev, wlandev->bssid,
+				NULL, 0, NULL, 0, status, GFP_KERNEL);
+}
+
+void prism2_disconnected(struct wlandevice *wlandev)
+{
+	cfg80211_disconnected(wlandev->netdev, 0, NULL,
+			      0, false, GFP_KERNEL);
+}
+
+void prism2_roamed(struct wlandevice *wlandev)
+{
+	struct cfg80211_roam_info roam_info = {
+		.links[0].bssid = wlandev->bssid,
+	};
+
+	cfg80211_roamed(wlandev->netdev, &roam_info, GFP_KERNEL);
+}
+
+/* Structures for declaring wiphy interface */
+static const struct cfg80211_ops prism2_usb_cfg_ops = {
+	.change_virtual_intf = prism2_change_virtual_intf,
+	.add_key = prism2_add_key,
+	.get_key = prism2_get_key,
+	.del_key = prism2_del_key,
+	.set_default_key = prism2_set_default_key,
+	.get_station = prism2_get_station,
+	.scan = prism2_scan,
+	.set_wiphy_params = prism2_set_wiphy_params,
+	.connect = prism2_connect,
+	.disconnect = prism2_disconnect,
+	.join_ibss = prism2_join_ibss,
+	.leave_ibss = prism2_leave_ibss,
+	.set_tx_power = prism2_set_tx_power,
+	.get_tx_power = prism2_get_tx_power,
+};
+
+/* Functions to create/free wiphy interface */
+static struct wiphy *wlan_create_wiphy(struct device *dev,
+				       struct wlandevice *wlandev)
+{
+	struct wiphy *wiphy;
+	struct prism2_wiphy_private *priv;
+
+	wiphy = wiphy_new(&prism2_usb_cfg_ops, sizeof(*priv));
+	if (!wiphy)
+		return NULL;
+
+	priv = wiphy_priv(wiphy);
+	priv->wlandev = wlandev;
+	memcpy(priv->channels, prism2_channels, sizeof(prism2_channels));
+	memcpy(priv->rates, prism2_rates, sizeof(prism2_rates));
+	priv->band.channels = priv->channels;
+	priv->band.n_channels = ARRAY_SIZE(prism2_channels);
+	priv->band.bitrates = priv->rates;
+	priv->band.n_bitrates = ARRAY_SIZE(prism2_rates);
+	priv->band.band = NL80211_BAND_2GHZ;
+	priv->band.ht_cap.ht_supported = false;
+	wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
+
+	set_wiphy_dev(wiphy, dev);
+	wiphy->privid = prism2_wiphy_privid;
+	wiphy->max_scan_ssids = 1;
+	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
+				 | BIT(NL80211_IFTYPE_ADHOC);
+	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+	wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES;
+	wiphy->cipher_suites = prism2_cipher_suites;
+
+	if (wiphy_register(wiphy) < 0) {
+		wiphy_free(wiphy);
+		return NULL;
+	}
+
+	return wiphy;
+}
+
+static void wlan_free_wiphy(struct wiphy *wiphy)
+{
+	wiphy_unregister(wiphy);
+	wiphy_free(wiphy);
+}