cfg80211.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * NXP Wireless LAN device driver: CFG80211
   4 *
   5 * Copyright 2011-2020 NXP
   6 */
   7
   8#include "cfg80211.h"
   9#include "main.h"
  10#include "11n.h"
  11#include "wmm.h"
  12
  13static char *reg_alpha2;
  14module_param(reg_alpha2, charp, 0);
  15
  16static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  17	{
  18		.max = MWIFIEX_MAX_BSS_NUM,
  19		.types = BIT(NL80211_IFTYPE_STATION) |
  20				   BIT(NL80211_IFTYPE_P2P_GO) |
  21				   BIT(NL80211_IFTYPE_P2P_CLIENT) |
  22				   BIT(NL80211_IFTYPE_AP),
  23	},
  24};
  25
  26static const struct ieee80211_iface_combination
  27mwifiex_iface_comb_ap_sta = {
  28	.limits = mwifiex_ap_sta_limits,
  29	.num_different_channels = 1,
  30	.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  31	.max_interfaces = MWIFIEX_MAX_BSS_NUM,
  32	.beacon_int_infra_match = true,
  33	.radar_detect_widths =	BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  34				BIT(NL80211_CHAN_WIDTH_20) |
  35				BIT(NL80211_CHAN_WIDTH_40),
  36};
  37
  38static const struct ieee80211_iface_combination
  39mwifiex_iface_comb_ap_sta_vht = {
  40	.limits = mwifiex_ap_sta_limits,
  41	.num_different_channels = 1,
  42	.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  43	.max_interfaces = MWIFIEX_MAX_BSS_NUM,
  44	.beacon_int_infra_match = true,
  45	.radar_detect_widths =	BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  46				BIT(NL80211_CHAN_WIDTH_20) |
  47				BIT(NL80211_CHAN_WIDTH_40) |
  48				BIT(NL80211_CHAN_WIDTH_80),
  49};
  50
  51static const struct
  52ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
  53	.limits = mwifiex_ap_sta_limits,
  54	.num_different_channels = 2,
  55	.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  56	.max_interfaces = MWIFIEX_MAX_BSS_NUM,
  57	.beacon_int_infra_match = true,
  58};
  59
  60/*
  61 * This function maps the nl802.11 channel type into driver channel type.
  62 *
  63 * The mapping is as follows -
  64 *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  65 *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  66 *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  67 *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  68 *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  69 */
  70u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  71{
  72	switch (chan_type) {
  73	case NL80211_CHAN_NO_HT:
  74	case NL80211_CHAN_HT20:
  75		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  76	case NL80211_CHAN_HT40PLUS:
  77		return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  78	case NL80211_CHAN_HT40MINUS:
  79		return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  80	default:
  81		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  82	}
  83}
  84
  85/* This function maps IEEE HT secondary channel type to NL80211 channel type
  86 */
  87u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
  88{
  89	struct mwifiex_channel_band channel_band;
  90	int ret;
  91
  92	ret = mwifiex_get_chan_info(priv, &channel_band);
  93
  94	if (!ret) {
  95		switch (channel_band.band_config.chan_width) {
  96		case CHAN_BW_20MHZ:
  97			if (IS_11N_ENABLED(priv))
  98				return NL80211_CHAN_HT20;
  99			else
 100				return NL80211_CHAN_NO_HT;
 101		case CHAN_BW_40MHZ:
 102			if (channel_band.band_config.chan2_offset ==
 103			    SEC_CHAN_ABOVE)
 104				return NL80211_CHAN_HT40PLUS;
 105			else
 106				return NL80211_CHAN_HT40MINUS;
 107		default:
 108			return NL80211_CHAN_HT20;
 109		}
 110	}
 111
 112	return NL80211_CHAN_HT20;
 113}
 114
 115/*
 116 * This function checks whether WEP is set.
 117 */
 118static int
 119mwifiex_is_alg_wep(u32 cipher)
 120{
 121	switch (cipher) {
 122	case WLAN_CIPHER_SUITE_WEP40:
 123	case WLAN_CIPHER_SUITE_WEP104:
 124		return 1;
 125	default:
 126		break;
 127	}
 128
 129	return 0;
 130}
 131
 132/*
 133 * This function retrieves the private structure from kernel wiphy structure.
 134 */
 135static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 136{
 137	return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 138}
 139
 140/*
 141 * CFG802.11 operation handler to delete a network key.
 142 */
 143static int
 144mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 145			 int link_id, u8 key_index, bool pairwise,
 146			 const u8 *mac_addr)
 147{
 148	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 149	static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 150	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 151
 152	if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 153		mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
 154		return -EFAULT;
 155	}
 156
 157	mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
 158	return 0;
 159}
 160
 161/*
 162 * This function forms an skb for management frame.
 163 */
 164static int
 165mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 166{
 167	u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 168	u16 pkt_len;
 169	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 170
 171	pkt_len = len + ETH_ALEN;
 172
 173	skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 174		    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 175	memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 176
 177	memcpy(skb_push(skb, sizeof(tx_control)),
 178	       &tx_control, sizeof(tx_control));
 179
 180	memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 181
 182	/* Add packet data and address4 */
 183	skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
 184	skb_put_data(skb, addr, ETH_ALEN);
 185	skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
 186		     len - sizeof(struct ieee80211_hdr_3addr));
 187
 188	skb->priority = LOW_PRIO_TID;
 189	__net_timestamp(skb);
 190
 191	return 0;
 192}
 193
 194/*
 195 * CFG802.11 operation handler to transmit a management frame.
 196 */
 197static int
 198mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 199			 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 200{
 201	const u8 *buf = params->buf;
 202	size_t len = params->len;
 203	struct sk_buff *skb;
 204	u16 pkt_len;
 205	const struct ieee80211_mgmt *mgmt;
 206	struct mwifiex_txinfo *tx_info;
 207	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 208
 209	if (!buf || !len) {
 210		mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
 211		return -EFAULT;
 212	}
 213
 214	mgmt = (const struct ieee80211_mgmt *)buf;
 215	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 216	    ieee80211_is_probe_resp(mgmt->frame_control)) {
 217		/* Since we support offload probe resp, we need to skip probe
 218		 * resp in AP or GO mode */
 219		mwifiex_dbg(priv->adapter, INFO,
 220			    "info: skip to send probe resp in AP or GO mode\n");
 221		return 0;
 222	}
 223
 224	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
 225		if (ieee80211_is_auth(mgmt->frame_control))
 226			mwifiex_dbg(priv->adapter, MSG,
 227				    "auth: send auth to %pM\n", mgmt->da);
 228		if (ieee80211_is_deauth(mgmt->frame_control))
 229			mwifiex_dbg(priv->adapter, MSG,
 230				    "auth: send deauth to %pM\n", mgmt->da);
 231		if (ieee80211_is_disassoc(mgmt->frame_control))
 232			mwifiex_dbg(priv->adapter, MSG,
 233				    "assoc: send disassoc to %pM\n", mgmt->da);
 234		if (ieee80211_is_assoc_resp(mgmt->frame_control))
 235			mwifiex_dbg(priv->adapter, MSG,
 236				    "assoc: send assoc resp to %pM\n",
 237				    mgmt->da);
 238		if (ieee80211_is_reassoc_resp(mgmt->frame_control))
 239			mwifiex_dbg(priv->adapter, MSG,
 240				    "assoc: send reassoc resp to %pM\n",
 241				    mgmt->da);
 242	}
 243
 244	pkt_len = len + ETH_ALEN;
 245	skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 246			    MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 247			    pkt_len + sizeof(pkt_len));
 248
 249	if (!skb) {
 250		mwifiex_dbg(priv->adapter, ERROR,
 251			    "allocate skb failed for management frame\n");
 252		return -ENOMEM;
 253	}
 254
 255	tx_info = MWIFIEX_SKB_TXCB(skb);
 256	memset(tx_info, 0, sizeof(*tx_info));
 257	tx_info->bss_num = priv->bss_num;
 258	tx_info->bss_type = priv->bss_type;
 259	tx_info->pkt_len = pkt_len;
 260
 261	mwifiex_form_mgmt_frame(skb, buf, len);
 262	*cookie = get_random_u32() | 1;
 263
 264	if (ieee80211_is_action(mgmt->frame_control))
 265		skb = mwifiex_clone_skb_for_tx_status(priv,
 266						      skb,
 267				MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
 268	else
 269		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 270					GFP_ATOMIC);
 271
 272	mwifiex_queue_tx_pkt(priv, skb);
 273
 274	mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
 275	return 0;
 276}
 277
 278/*
 279 * CFG802.11 operation handler to register a mgmt frame.
 280 */
 281static void
 282mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
 283						 struct wireless_dev *wdev,
 284						 struct mgmt_frame_regs *upd)
 285{
 286	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 287	u32 mask = upd->interface_stypes;
 288
 289	if (mask != priv->mgmt_frame_mask) {
 290		priv->mgmt_frame_mask = mask;
 291		if (priv->host_mlme_reg)
 292			priv->mgmt_frame_mask |= HOST_MLME_MGMT_MASK;
 293		mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 294				 HostCmd_ACT_GEN_SET, 0,
 295				 &priv->mgmt_frame_mask, false);
 296		mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
 297	}
 298}
 299
 300/*
 301 * CFG802.11 operation handler to remain on channel.
 302 */
 303static int
 304mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 305				   struct wireless_dev *wdev,
 306				   struct ieee80211_channel *chan,
 307				   unsigned int duration, u64 *cookie)
 308{
 309	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 310	int ret;
 311
 312	if (!chan || !cookie) {
 313		mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
 314		return -EINVAL;
 315	}
 316
 317	if (priv->roc_cfg.cookie) {
 318		mwifiex_dbg(priv->adapter, INFO,
 319			    "info: ongoing ROC, cookie = 0x%llx\n",
 320			    priv->roc_cfg.cookie);
 321		return -EBUSY;
 322	}
 323
 324	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 325					 duration);
 326
 327	if (!ret) {
 328		*cookie = get_random_u32() | 1;
 329		priv->roc_cfg.cookie = *cookie;
 330		priv->roc_cfg.chan = *chan;
 331
 332		cfg80211_ready_on_channel(wdev, *cookie, chan,
 333					  duration, GFP_ATOMIC);
 334
 335		mwifiex_dbg(priv->adapter, INFO,
 336			    "info: ROC, cookie = 0x%llx\n", *cookie);
 337	}
 338
 339	return ret;
 340}
 341
 342/*
 343 * CFG802.11 operation handler to cancel remain on channel.
 344 */
 345static int
 346mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 347					  struct wireless_dev *wdev, u64 cookie)
 348{
 349	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 350	int ret;
 351
 352	if (cookie != priv->roc_cfg.cookie)
 353		return -ENOENT;
 354
 355	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 356					 &priv->roc_cfg.chan, 0);
 357
 358	if (!ret) {
 359		cfg80211_remain_on_channel_expired(wdev, cookie,
 360						   &priv->roc_cfg.chan,
 361						   GFP_ATOMIC);
 362
 363		memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 364
 365		mwifiex_dbg(priv->adapter, INFO,
 366			    "info: cancel ROC, cookie = 0x%llx\n", cookie);
 367	}
 368
 369	return ret;
 370}
 371
 372/*
 373 * CFG802.11 operation handler to set Tx power.
 374 */
 375static int
 376mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 377			      struct wireless_dev *wdev,
 378			      int radio_idx,
 379			      enum nl80211_tx_power_setting type,
 380			      int mbm)
 381{
 382	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 383	struct mwifiex_private *priv;
 384	struct mwifiex_power_cfg power_cfg;
 385	int dbm = MBM_TO_DBM(mbm);
 386
 387	switch (type) {
 388	case NL80211_TX_POWER_FIXED:
 389		power_cfg.is_power_auto = 0;
 390		power_cfg.is_power_fixed = 1;
 391		power_cfg.power_level = dbm;
 392		break;
 393	case NL80211_TX_POWER_LIMITED:
 394		power_cfg.is_power_auto = 0;
 395		power_cfg.is_power_fixed = 0;
 396		power_cfg.power_level = dbm;
 397		break;
 398	case NL80211_TX_POWER_AUTOMATIC:
 399		power_cfg.is_power_auto = 1;
 400		break;
 401	}
 402
 403	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 404
 405	return mwifiex_set_tx_power(priv, &power_cfg);
 406}
 407
 408/*
 409 * CFG802.11 operation handler to get Tx power.
 410 */
 411static int
 412mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
 413			      struct wireless_dev *wdev,
 414			      int radio_idx,
 415			      unsigned int link_id, int *dbm)
 416{
 417	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 418	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 419							MWIFIEX_BSS_ROLE_ANY);
 420	int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
 421				   HostCmd_ACT_GEN_GET, 0, NULL, true);
 422
 423	if (ret < 0)
 424		return ret;
 425
 426	/* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
 427	*dbm = priv->tx_power_level;
 428
 429	return 0;
 430}
 431
 432/*
 433 * CFG802.11 operation handler to set Power Save option.
 434 *
 435 * The timeout value, if provided, is currently ignored.
 436 */
 437static int
 438mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 439				struct net_device *dev,
 440				bool enabled, int timeout)
 441{
 442	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 443	u32 ps_mode;
 444
 445	if (timeout)
 446		mwifiex_dbg(priv->adapter, INFO,
 447			    "info: ignore timeout value for IEEE Power Save\n");
 448
 449	ps_mode = enabled;
 450
 451	return mwifiex_drv_set_power(priv, &ps_mode);
 452}
 453
 454/*
 455 * CFG802.11 operation handler to set the default network key.
 456 */
 457static int
 458mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 459				 int link_id, u8 key_index, bool unicast,
 460				 bool multicast)
 461{
 462	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 463
 464	/* Return if WEP key not configured */
 465	if (!priv->sec_info.wep_enabled)
 466		return 0;
 467
 468	if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 469		priv->wep_key_curr_index = key_index;
 470	} else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 471				      NULL, 0)) {
 472		mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
 473		return -EFAULT;
 474	}
 475
 476	return 0;
 477}
 478
 479/*
 480 * CFG802.11 operation handler to add a network key.
 481 */
 482static int
 483mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 484			 int link_id, u8 key_index, bool pairwise,
 485			 const u8 *mac_addr, struct key_params *params)
 486{
 487	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 488	struct mwifiex_wep_key *wep_key;
 489	static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 490	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 491
 492	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 493	    (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 494	     params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 495		if (params->key && params->key_len) {
 496			wep_key = &priv->wep_key[key_index];
 497			memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 498			memcpy(wep_key->key_material, params->key,
 499			       params->key_len);
 500			wep_key->key_index = key_index;
 501			wep_key->key_length = params->key_len;
 502			priv->sec_info.wep_enabled = 1;
 503		}
 504		return 0;
 505	}
 506
 507	if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 508			       key_index, peer_mac, 0)) {
 509		mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
 510		return -EFAULT;
 511	}
 512
 513	return 0;
 514}
 515
 516/*
 517 * CFG802.11 operation handler to set default mgmt key.
 518 */
 519static int
 520mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
 521				      struct net_device *netdev,
 522				      int link_id,
 523				      u8 key_index)
 524{
 525	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 526	struct mwifiex_ds_encrypt_key encrypt_key;
 527
 528	wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
 529
 530	if (priv->adapter->host_mlme_enabled)
 531		return 0;
 532
 533	memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
 534	encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
 535	encrypt_key.key_index = key_index;
 536	encrypt_key.is_igtk_def_key = true;
 537	eth_broadcast_addr(encrypt_key.mac_addr);
 538
 539	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
 540			     HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) {
 541		mwifiex_dbg(priv->adapter, ERROR,
 542			    "Sending KEY_MATERIAL command failed\n");
 543		return -1;
 544	}
 545
 546	return 0;
 547}
 548
 549/*
 550 * This function sends domain information to the firmware.
 551 *
 552 * The following information are passed to the firmware -
 553 *      - Country codes
 554 *      - Sub bands (first channel, number of channels, maximum Tx power)
 555 */
 556int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 557{
 558	u8 no_of_triplet = 0;
 559	struct ieee80211_country_ie_triplet *t;
 560	u8 no_of_parsed_chan = 0;
 561	u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 562	u8 i, flag = 0;
 563	enum nl80211_band band;
 564	struct ieee80211_supported_band *sband;
 565	struct ieee80211_channel *ch;
 566	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 567	struct mwifiex_private *priv;
 568	struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 569
 570	/* Set country code */
 571	domain_info->country_code[0] = adapter->country_code[0];
 572	domain_info->country_code[1] = adapter->country_code[1];
 573	domain_info->country_code[2] = ' ';
 574
 575	band = mwifiex_band_to_radio_type(adapter->config_bands);
 576	if (!wiphy->bands[band]) {
 577		mwifiex_dbg(adapter, ERROR,
 578			    "11D: setting domain info in FW\n");
 579		return -1;
 580	}
 581
 582	sband = wiphy->bands[band];
 583
 584	for (i = 0; i < sband->n_channels ; i++) {
 585		ch = &sband->channels[i];
 586		if (ch->flags & IEEE80211_CHAN_DISABLED)
 587			continue;
 588
 589		if (!flag) {
 590			flag = 1;
 591			first_chan = (u32) ch->hw_value;
 592			next_chan = first_chan;
 593			max_pwr = ch->max_power;
 594			no_of_parsed_chan = 1;
 595			continue;
 596		}
 597
 598		if (ch->hw_value == next_chan + 1 &&
 599		    ch->max_power == max_pwr) {
 600			next_chan++;
 601			no_of_parsed_chan++;
 602		} else {
 603			t = &domain_info->triplet[no_of_triplet];
 604			t->chans.first_channel = first_chan;
 605			t->chans.num_channels = no_of_parsed_chan;
 606			t->chans.max_power = max_pwr;
 607			no_of_triplet++;
 608			first_chan = (u32) ch->hw_value;
 609			next_chan = first_chan;
 610			max_pwr = ch->max_power;
 611			no_of_parsed_chan = 1;
 612		}
 613	}
 614
 615	if (flag) {
 616		t = &domain_info->triplet[no_of_triplet];
 617		t->chans.first_channel = first_chan;
 618		t->chans.num_channels = no_of_parsed_chan;
 619		t->chans.max_power = max_pwr;
 620		no_of_triplet++;
 621	}
 622
 623	domain_info->no_of_triplet = no_of_triplet;
 624
 625	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 626
 627	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 628			     HostCmd_ACT_GEN_SET, 0, NULL, false)) {
 629		mwifiex_dbg(adapter, INFO,
 630			    "11D: setting domain info in FW\n");
 631		return -1;
 632	}
 633
 634	return 0;
 635}
 636
 637static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
 638{
 639	struct ieee80211_supported_band *sband;
 640	struct ieee80211_channel *chan;
 641	unsigned int i;
 642
 643	if (!wiphy->bands[NL80211_BAND_5GHZ])
 644		return;
 645	sband = wiphy->bands[NL80211_BAND_5GHZ];
 646
 647	for (i = 0; i < sband->n_channels; i++) {
 648		chan = &sband->channels[i];
 649		if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
 650		    (chan->flags & IEEE80211_CHAN_RADAR))
 651			chan->flags |= IEEE80211_CHAN_NO_IR;
 652	}
 653}
 654
 655/*
 656 * CFG802.11 regulatory domain callback function.
 657 *
 658 * This function is called when the regulatory domain is changed due to the
 659 * following reasons -
 660 *      - Set by driver
 661 *      - Set by system core
 662 *      - Set by user
 663 *      - Set bt Country IE
 664 */
 665static void mwifiex_reg_notifier(struct wiphy *wiphy,
 666				 struct regulatory_request *request)
 667{
 668	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 669	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 670							MWIFIEX_BSS_ROLE_ANY);
 671	mwifiex_dbg(adapter, INFO,
 672		    "info: cfg80211 regulatory domain callback for %c%c\n",
 673		    request->alpha2[0], request->alpha2[1]);
 674	mwifiex_reg_apply_radar_flags(wiphy);
 675
 676	switch (request->initiator) {
 677	case NL80211_REGDOM_SET_BY_DRIVER:
 678	case NL80211_REGDOM_SET_BY_CORE:
 679	case NL80211_REGDOM_SET_BY_USER:
 680	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 681		break;
 682	default:
 683		mwifiex_dbg(adapter, ERROR,
 684			    "unknown regdom initiator: %d\n",
 685			    request->initiator);
 686		return;
 687	}
 688
 689	/* Don't send same regdom info to firmware */
 690	if (strncmp(request->alpha2, adapter->country_code,
 691		    sizeof(request->alpha2)) != 0) {
 692		memcpy(adapter->country_code, request->alpha2,
 693		       sizeof(request->alpha2));
 694		mwifiex_send_domain_info_cmd_fw(wiphy);
 695		mwifiex_dnld_txpwr_table(priv);
 696	}
 697}
 698
 699/*
 700 * This function sets the fragmentation threshold.
 701 *
 702 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 703 * and MWIFIEX_FRAG_MAX_VALUE.
 704 */
 705static int
 706mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 707{
 708	if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 709	    frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 710		frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 711
 712	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 713				HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 714				&frag_thr, true);
 715}
 716
 717/*
 718 * This function sets the RTS threshold.
 719
 720 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 721 * and MWIFIEX_RTS_MAX_VALUE.
 722 */
 723static int
 724mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 725{
 726	if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 727		rts_thr = MWIFIEX_RTS_MAX_VALUE;
 728
 729	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 730				HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 731				&rts_thr, true);
 732}
 733
 734/*
 735 * CFG802.11 operation handler to set wiphy parameters.
 736 *
 737 * This function can be used to set the RTS threshold and the
 738 * Fragmentation threshold of the driver.
 739 */
 740static int
 741mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx,
 742				  u32 changed)
 743{
 744	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 745	struct mwifiex_private *priv;
 746	struct mwifiex_uap_bss_param *bss_cfg;
 747	int ret;
 748
 749	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 750
 751	switch (priv->bss_role) {
 752	case MWIFIEX_BSS_ROLE_UAP:
 753		if (priv->bss_started) {
 754			mwifiex_dbg(adapter, ERROR,
 755				    "cannot change wiphy params when bss started");
 756			return -EINVAL;
 757		}
 758
 759		bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
 760		if (!bss_cfg)
 761			return -ENOMEM;
 762
 763		mwifiex_set_sys_config_invalid_data(bss_cfg);
 764
 765		if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 766			bss_cfg->rts_threshold = wiphy->rts_threshold;
 767		if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 768			bss_cfg->frag_threshold = wiphy->frag_threshold;
 769		if (changed & WIPHY_PARAM_RETRY_LONG)
 770			bss_cfg->retry_limit = wiphy->retry_long;
 771
 772		ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
 773				       HostCmd_ACT_GEN_SET,
 774				       UAP_BSS_PARAMS_I, bss_cfg,
 775				       false);
 776
 777		kfree(bss_cfg);
 778		if (ret) {
 779			mwifiex_dbg(adapter, ERROR,
 780				    "Failed to set wiphy phy params\n");
 781			return ret;
 782		}
 783		break;
 784
 785	case MWIFIEX_BSS_ROLE_STA:
 786		if (priv->media_connected) {
 787			mwifiex_dbg(adapter, ERROR,
 788				    "cannot change wiphy params when connected");
 789			return -EINVAL;
 790		}
 791		if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 792			ret = mwifiex_set_rts(priv,
 793					      wiphy->rts_threshold);
 794			if (ret)
 795				return ret;
 796		}
 797		if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 798			ret = mwifiex_set_frag(priv,
 799					       wiphy->frag_threshold);
 800			if (ret)
 801				return ret;
 802		}
 803		break;
 804	}
 805
 806	return 0;
 807}
 808
 809static int
 810mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 811{
 812	u16 mode = P2P_MODE_DISABLE;
 813
 814	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 815			     HostCmd_ACT_GEN_SET, 0, &mode, true))
 816		return -1;
 817
 818	return 0;
 819}
 820
 821/*
 822 * This function initializes the functionalities for P2P client.
 823 * The P2P client initialization sequence is:
 824 * disable -> device -> client
 825 */
 826static int
 827mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 828{
 829	u16 mode;
 830
 831	if (mwifiex_cfg80211_deinit_p2p(priv))
 832		return -1;
 833
 834	mode = P2P_MODE_DEVICE;
 835	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 836			     HostCmd_ACT_GEN_SET, 0, &mode, true))
 837		return -1;
 838
 839	mode = P2P_MODE_CLIENT;
 840	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 841			     HostCmd_ACT_GEN_SET, 0, &mode, true))
 842		return -1;
 843
 844	return 0;
 845}
 846
 847/*
 848 * This function initializes the functionalities for P2P GO.
 849 * The P2P GO initialization sequence is:
 850 * disable -> device -> GO
 851 */
 852static int
 853mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 854{
 855	u16 mode;
 856
 857	if (mwifiex_cfg80211_deinit_p2p(priv))
 858		return -1;
 859
 860	mode = P2P_MODE_DEVICE;
 861	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 862			     HostCmd_ACT_GEN_SET, 0, &mode, true))
 863		return -1;
 864
 865	mode = P2P_MODE_GO;
 866	if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
 867			     HostCmd_ACT_GEN_SET, 0, &mode, true))
 868		return -1;
 869
 870	return 0;
 871}
 872
 873static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
 874{
 875	struct mwifiex_adapter *adapter = priv->adapter;
 876	unsigned long flags;
 877
 878	priv->host_mlme_reg = false;
 879	priv->mgmt_frame_mask = 0;
 880	if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
 881			     HostCmd_ACT_GEN_SET, 0,
 882			     &priv->mgmt_frame_mask, false)) {
 883		mwifiex_dbg(adapter, ERROR,
 884			    "could not unregister mgmt frame rx\n");
 885		return -1;
 886	}
 887
 888	mwifiex_deauthenticate(priv, NULL);
 889
 890	spin_lock_irqsave(&adapter->main_proc_lock, flags);
 891	adapter->main_locked = true;
 892	if (adapter->mwifiex_processing) {
 893		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 894		flush_workqueue(adapter->workqueue);
 895	} else {
 896		spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 897	}
 898
 899	spin_lock_bh(&adapter->rx_proc_lock);
 900	adapter->rx_locked = true;
 901	if (adapter->rx_processing) {
 902		spin_unlock_bh(&adapter->rx_proc_lock);
 903		flush_workqueue(adapter->rx_workqueue);
 904	} else {
 905	spin_unlock_bh(&adapter->rx_proc_lock);
 906	}
 907
 908	mwifiex_free_priv(priv);
 909	priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
 910	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
 911	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 912
 913	return 0;
 914}
 915
 916static int
 917mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 918			     struct net_device *dev,
 919			     enum nl80211_iftype type)
 920{
 921	struct mwifiex_adapter *adapter = priv->adapter;
 922	unsigned long flags;
 923
 924	mwifiex_init_priv(priv);
 925
 926	priv->bss_mode = type;
 927	priv->wdev.iftype = type;
 928
 929	mwifiex_init_priv_params(priv, priv->netdev);
 930	priv->bss_started = 0;
 931
 932	switch (type) {
 933	case NL80211_IFTYPE_STATION:
 934	case NL80211_IFTYPE_ADHOC:
 935		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 936		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 937		break;
 938	case NL80211_IFTYPE_P2P_CLIENT:
 939		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
 940		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 941		break;
 942	case NL80211_IFTYPE_P2P_GO:
 943		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 944		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 945		break;
 946	case NL80211_IFTYPE_AP:
 947		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
 948		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 949		break;
 950	default:
 951		mwifiex_dbg(adapter, ERROR,
 952			    "%s: changing to %d not supported\n",
 953			    dev->name, type);
 954		return -EOPNOTSUPP;
 955	}
 956
 957	priv->bss_num = mwifiex_get_unused_bss_num(adapter, priv->bss_type);
 958
 959	spin_lock_irqsave(&adapter->main_proc_lock, flags);
 960	adapter->main_locked = false;
 961	spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
 962
 963	spin_lock_bh(&adapter->rx_proc_lock);
 964	adapter->rx_locked = false;
 965	spin_unlock_bh(&adapter->rx_proc_lock);
 966
 967	mwifiex_set_mac_address(priv, dev, false, NULL);
 968
 969	return 0;
 970}
 971
 972static bool
 973is_vif_type_change_allowed(struct mwifiex_adapter *adapter,
 974			   enum nl80211_iftype old_iftype,
 975			   enum nl80211_iftype new_iftype)
 976{
 977	switch (old_iftype) {
 978	case NL80211_IFTYPE_ADHOC:
 979		switch (new_iftype) {
 980		case NL80211_IFTYPE_STATION:
 981			return true;
 982		case NL80211_IFTYPE_P2P_CLIENT:
 983		case NL80211_IFTYPE_P2P_GO:
 984			return adapter->curr_iface_comb.p2p_intf !=
 985			       adapter->iface_limit.p2p_intf;
 986		case NL80211_IFTYPE_AP:
 987			return adapter->curr_iface_comb.uap_intf !=
 988			       adapter->iface_limit.uap_intf;
 989		default:
 990			return false;
 991		}
 992
 993	case NL80211_IFTYPE_STATION:
 994		switch (new_iftype) {
 995		case NL80211_IFTYPE_ADHOC:
 996			return true;
 997		case NL80211_IFTYPE_P2P_CLIENT:
 998		case NL80211_IFTYPE_P2P_GO:
 999			return adapter->curr_iface_comb.p2p_intf !=
1000			       adapter->iface_limit.p2p_intf;
1001		case NL80211_IFTYPE_AP:
1002			return adapter->curr_iface_comb.uap_intf !=
1003			       adapter->iface_limit.uap_intf;
1004		default:
1005			return false;
1006		}
1007
1008	case NL80211_IFTYPE_AP:
1009		switch (new_iftype) {
1010		case NL80211_IFTYPE_ADHOC:
1011		case NL80211_IFTYPE_STATION:
1012			return adapter->curr_iface_comb.sta_intf !=
1013			       adapter->iface_limit.sta_intf;
1014		case NL80211_IFTYPE_P2P_CLIENT:
1015		case NL80211_IFTYPE_P2P_GO:
1016			return adapter->curr_iface_comb.p2p_intf !=
1017			       adapter->iface_limit.p2p_intf;
1018		default:
1019			return false;
1020		}
1021
1022	case NL80211_IFTYPE_P2P_CLIENT:
1023		switch (new_iftype) {
1024		case NL80211_IFTYPE_ADHOC:
1025		case NL80211_IFTYPE_STATION:
1026			return true;
1027		case NL80211_IFTYPE_P2P_GO:
1028			return true;
1029		case NL80211_IFTYPE_AP:
1030			return adapter->curr_iface_comb.uap_intf !=
1031			       adapter->iface_limit.uap_intf;
1032		default:
1033			return false;
1034		}
1035
1036	case NL80211_IFTYPE_P2P_GO:
1037		switch (new_iftype) {
1038		case NL80211_IFTYPE_ADHOC:
1039		case NL80211_IFTYPE_STATION:
1040			return true;
1041		case NL80211_IFTYPE_P2P_CLIENT:
1042			return true;
1043		case NL80211_IFTYPE_AP:
1044			return adapter->curr_iface_comb.uap_intf !=
1045			       adapter->iface_limit.uap_intf;
1046		default:
1047			return false;
1048		}
1049
1050	default:
1051		break;
1052	}
1053
1054	return false;
1055}
1056
1057static void
1058update_vif_type_counter(struct mwifiex_adapter *adapter,
1059			enum nl80211_iftype iftype,
1060			int change)
1061{
1062	switch (iftype) {
1063	case NL80211_IFTYPE_UNSPECIFIED:
1064	case NL80211_IFTYPE_ADHOC:
1065	case NL80211_IFTYPE_STATION:
1066		adapter->curr_iface_comb.sta_intf += change;
1067		break;
1068	case NL80211_IFTYPE_AP:
1069		adapter->curr_iface_comb.uap_intf += change;
1070		break;
1071	case NL80211_IFTYPE_P2P_CLIENT:
1072	case NL80211_IFTYPE_P2P_GO:
1073		adapter->curr_iface_comb.p2p_intf += change;
1074		break;
1075	default:
1076		mwifiex_dbg(adapter, ERROR,
1077			    "%s: Unsupported iftype passed: %d\n",
1078			    __func__, iftype);
1079		break;
1080	}
1081}
1082
1083static int
1084mwifiex_change_vif_to_p2p(struct net_device *dev,
1085			  enum nl80211_iftype curr_iftype,
1086			  enum nl80211_iftype type,
1087			  struct vif_params *params)
1088{
1089	struct mwifiex_private *priv;
1090	struct mwifiex_adapter *adapter;
1091
1092	priv = mwifiex_netdev_get_priv(dev);
1093
1094	if (!priv)
1095		return -1;
1096
1097	adapter = priv->adapter;
1098
1099	mwifiex_dbg(adapter, INFO,
1100		    "%s: changing role to p2p\n", dev->name);
1101
1102	if (mwifiex_deinit_priv_params(priv))
1103		return -1;
1104	if (mwifiex_init_new_priv_params(priv, dev, type))
1105		return -1;
1106
1107	update_vif_type_counter(adapter, curr_iftype, -1);
1108	update_vif_type_counter(adapter, type, +1);
1109	dev->ieee80211_ptr->iftype = type;
1110
1111	switch (type) {
1112	case NL80211_IFTYPE_P2P_CLIENT:
1113		if (mwifiex_cfg80211_init_p2p_client(priv))
1114			return -EFAULT;
1115		break;
1116	case NL80211_IFTYPE_P2P_GO:
1117		if (mwifiex_cfg80211_init_p2p_go(priv))
1118			return -EFAULT;
1119		break;
1120	default:
1121		mwifiex_dbg(adapter, ERROR,
1122			    "%s: changing to %d not supported\n",
1123			    dev->name, type);
1124		return -EOPNOTSUPP;
1125	}
1126
1127	if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1128			     HostCmd_ACT_GEN_SET, 0, NULL, true))
1129		return -1;
1130
1131	if (mwifiex_sta_init_cmd(priv, false))
1132		return -1;
1133
1134	return 0;
1135}
1136
1137static int
1138mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1139				enum nl80211_iftype curr_iftype,
1140				enum nl80211_iftype type,
1141				struct vif_params *params)
1142{
1143	struct mwifiex_private *priv;
1144	struct mwifiex_adapter *adapter;
1145
1146	priv = mwifiex_netdev_get_priv(dev);
1147
1148	if (!priv)
1149		return -1;
1150
1151	adapter = priv->adapter;
1152
1153	if (type == NL80211_IFTYPE_STATION)
1154		mwifiex_dbg(adapter, INFO,
1155			    "%s: changing role to station\n", dev->name);
1156	else
1157		mwifiex_dbg(adapter, INFO,
1158			    "%s: changing role to adhoc\n", dev->name);
1159
1160	if (mwifiex_deinit_priv_params(priv))
1161		return -1;
1162	if (mwifiex_init_new_priv_params(priv, dev, type))
1163		return -1;
1164
1165	update_vif_type_counter(adapter, curr_iftype, -1);
1166	update_vif_type_counter(adapter, type, +1);
1167	dev->ieee80211_ptr->iftype = type;
1168
1169	if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1170			     HostCmd_ACT_GEN_SET, 0, NULL, true))
1171		return -1;
1172	if (mwifiex_sta_init_cmd(priv, false))
1173		return -1;
1174
1175	return 0;
1176}
1177
1178static int
1179mwifiex_change_vif_to_ap(struct net_device *dev,
1180			 enum nl80211_iftype curr_iftype,
1181			 enum nl80211_iftype type,
1182			 struct vif_params *params)
1183{
1184	struct mwifiex_private *priv;
1185	struct mwifiex_adapter *adapter;
1186
1187	priv = mwifiex_netdev_get_priv(dev);
1188
1189	if (!priv)
1190		return -1;
1191
1192	adapter = priv->adapter;
1193
1194	mwifiex_dbg(adapter, INFO,
1195		    "%s: changing role to AP\n", dev->name);
1196
1197	if (mwifiex_deinit_priv_params(priv))
1198		return -1;
1199	if (mwifiex_init_new_priv_params(priv, dev, type))
1200		return -1;
1201
1202	update_vif_type_counter(adapter, curr_iftype, -1);
1203	update_vif_type_counter(adapter, type, +1);
1204	dev->ieee80211_ptr->iftype = type;
1205
1206	if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1207			     HostCmd_ACT_GEN_SET, 0, NULL, true))
1208		return -1;
1209	if (mwifiex_sta_init_cmd(priv, false))
1210		return -1;
1211
1212	return 0;
1213}
1214/*
1215 * CFG802.11 operation handler to change interface type.
1216 */
1217static int
1218mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1219				     struct net_device *dev,
1220				     enum nl80211_iftype type,
1221				     struct vif_params *params)
1222{
1223	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1224	enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1225
1226	if (priv->scan_request) {
1227		mwifiex_dbg(priv->adapter, ERROR,
1228			    "change virtual interface: scan in process\n");
1229		return -EBUSY;
1230	}
1231
1232	if (type == NL80211_IFTYPE_UNSPECIFIED) {
1233		mwifiex_dbg(priv->adapter, INFO,
1234			    "%s: no new type specified, keeping old type %d\n",
1235			    dev->name, curr_iftype);
1236		return 0;
1237	}
1238
1239	if (curr_iftype == type) {
1240		mwifiex_dbg(priv->adapter, INFO,
1241			    "%s: interface already is of type %d\n",
1242			    dev->name, curr_iftype);
1243		return 0;
1244	}
1245
1246	if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) {
1247		mwifiex_dbg(priv->adapter, ERROR,
1248			    "%s: change from type %d to %d is not allowed\n",
1249			    dev->name, curr_iftype, type);
1250		return -EOPNOTSUPP;
1251	}
1252
1253	switch (curr_iftype) {
1254	case NL80211_IFTYPE_ADHOC:
1255		switch (type) {
1256		case NL80211_IFTYPE_STATION:
1257			priv->bss_mode = type;
1258			priv->sec_info.authentication_mode =
1259						   NL80211_AUTHTYPE_OPEN_SYSTEM;
1260			dev->ieee80211_ptr->iftype = type;
1261			mwifiex_deauthenticate(priv, NULL);
1262			return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1263						HostCmd_ACT_GEN_SET, 0, NULL,
1264						true);
1265		case NL80211_IFTYPE_P2P_CLIENT:
1266		case NL80211_IFTYPE_P2P_GO:
1267			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1268							 type, params);
1269		case NL80211_IFTYPE_AP:
1270			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1271							params);
1272		default:
1273			goto errnotsupp;
1274		}
1275
1276	case NL80211_IFTYPE_STATION:
1277		switch (type) {
1278		case NL80211_IFTYPE_ADHOC:
1279			priv->bss_mode = type;
1280			priv->sec_info.authentication_mode =
1281						   NL80211_AUTHTYPE_OPEN_SYSTEM;
1282			dev->ieee80211_ptr->iftype = type;
1283			mwifiex_deauthenticate(priv, NULL);
1284			return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1285						HostCmd_ACT_GEN_SET, 0, NULL,
1286						true);
1287		case NL80211_IFTYPE_P2P_CLIENT:
1288		case NL80211_IFTYPE_P2P_GO:
1289			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1290							 type, params);
1291		case NL80211_IFTYPE_AP:
1292			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1293							params);
1294		default:
1295			goto errnotsupp;
1296		}
1297
1298	case NL80211_IFTYPE_AP:
1299		switch (type) {
1300		case NL80211_IFTYPE_ADHOC:
1301		case NL80211_IFTYPE_STATION:
1302			return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1303							       type, params);
1304			break;
1305		case NL80211_IFTYPE_P2P_CLIENT:
1306		case NL80211_IFTYPE_P2P_GO:
1307			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1308							 type, params);
1309		default:
1310			goto errnotsupp;
1311		}
1312
1313	case NL80211_IFTYPE_P2P_CLIENT:
1314		if (mwifiex_cfg80211_deinit_p2p(priv))
1315			return -EFAULT;
1316
1317		switch (type) {
1318		case NL80211_IFTYPE_ADHOC:
1319		case NL80211_IFTYPE_STATION:
1320			return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1321							       type, params);
1322		case NL80211_IFTYPE_P2P_GO:
1323			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1324							 type, params);
1325		case NL80211_IFTYPE_AP:
1326			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1327							params);
1328		default:
1329			goto errnotsupp;
1330		}
1331
1332	case NL80211_IFTYPE_P2P_GO:
1333		if (mwifiex_cfg80211_deinit_p2p(priv))
1334			return -EFAULT;
1335
1336		switch (type) {
1337		case NL80211_IFTYPE_ADHOC:
1338		case NL80211_IFTYPE_STATION:
1339			return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1340							       type, params);
1341		case NL80211_IFTYPE_P2P_CLIENT:
1342			return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1343							 type, params);
1344		case NL80211_IFTYPE_AP:
1345			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1346							params);
1347		default:
1348			goto errnotsupp;
1349		}
1350
1351	default:
1352		goto errnotsupp;
1353	}
1354
1355
1356	return 0;
1357
1358errnotsupp:
1359	mwifiex_dbg(priv->adapter, ERROR,
1360		    "unsupported interface type transition: %d to %d\n",
1361		    curr_iftype, type);
1362	return -EOPNOTSUPP;
1363}
1364
1365static void
1366mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo,
1367		     struct rate_info *rate)
1368{
1369	struct mwifiex_adapter *adapter = priv->adapter;
1370
1371	if (adapter->is_hw_11ac_capable) {
1372		/* bit[1-0]: 00=LG 01=HT 10=VHT */
1373		if (htinfo & BIT(0)) {
1374			/* HT */
1375			rate->mcs = rateinfo;
1376			rate->flags |= RATE_INFO_FLAGS_MCS;
1377		}
1378		if (htinfo & BIT(1)) {
1379			/* VHT */
1380			rate->mcs = rateinfo & 0x0F;
1381			rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1382		}
1383
1384		if (htinfo & (BIT(1) | BIT(0))) {
1385			/* HT or VHT */
1386			switch (htinfo & (BIT(3) | BIT(2))) {
1387			case 0:
1388				rate->bw = RATE_INFO_BW_20;
1389				break;
1390			case (BIT(2)):
1391				rate->bw = RATE_INFO_BW_40;
1392				break;
1393			case (BIT(3)):
1394				rate->bw = RATE_INFO_BW_80;
1395				break;
1396			case (BIT(3) | BIT(2)):
1397				rate->bw = RATE_INFO_BW_160;
1398				break;
1399			}
1400
1401			if (htinfo & BIT(4))
1402				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1403
1404			if ((rateinfo >> 4) == 1)
1405				rate->nss = 2;
1406			else
1407				rate->nss = 1;
1408		}
1409	} else {
1410		/*
1411		 * Bit 0 in htinfo indicates that current rate is 11n. Valid
1412		 * MCS index values for us are 0 to 15.
1413		 */
1414		if ((htinfo & BIT(0)) && (rateinfo < 16)) {
1415			rate->mcs = rateinfo;
1416			rate->flags |= RATE_INFO_FLAGS_MCS;
1417			rate->bw = RATE_INFO_BW_20;
1418			if (htinfo & BIT(1))
1419				rate->bw = RATE_INFO_BW_40;
1420			if (htinfo & BIT(2))
1421				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1422		}
1423	}
1424
1425	/* Decode legacy rates for non-HT. */
1426	if (!(htinfo & (BIT(0) | BIT(1)))) {
1427		/* Bitrates in multiples of 100kb/s. */
1428		static const int legacy_rates[] = {
1429			[0] = 10,
1430			[1] = 20,
1431			[2] = 55,
1432			[3] = 110,
1433			[4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */
1434			[5] = 60,
1435			[6] = 90,
1436			[7] = 120,
1437			[8] = 180,
1438			[9] = 240,
1439			[10] = 360,
1440			[11] = 480,
1441			[12] = 540,
1442		};
1443		if (rateinfo < ARRAY_SIZE(legacy_rates))
1444			rate->legacy = legacy_rates[rateinfo];
1445	}
1446}
1447
1448/*
1449 * This function dumps the station information on a buffer.
1450 *
1451 * The following information are shown -
1452 *      - Total bytes transmitted
1453 *      - Total bytes received
1454 *      - Total packets transmitted
1455 *      - Total packets received
1456 *      - Signal quality level
1457 *      - Transmission rate
1458 */
1459static int
1460mwifiex_dump_station_info(struct mwifiex_private *priv,
1461			  struct mwifiex_sta_node *node,
1462			  struct station_info *sinfo)
1463{
1464	u32 rate;
1465
1466	sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1467			BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1468			BIT_ULL(NL80211_STA_INFO_TX_BITRATE) |
1469			BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
1470
1471	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1472		if (!node)
1473			return -ENOENT;
1474
1475		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) |
1476				BIT_ULL(NL80211_STA_INFO_TX_FAILED);
1477		sinfo->inactive_time =
1478			jiffies_to_msecs(jiffies - node->stats.last_rx);
1479
1480		sinfo->signal = node->stats.rssi;
1481		sinfo->signal_avg = node->stats.rssi;
1482		sinfo->rx_bytes = node->stats.rx_bytes;
1483		sinfo->tx_bytes = node->stats.tx_bytes;
1484		sinfo->rx_packets = node->stats.rx_packets;
1485		sinfo->tx_packets = node->stats.tx_packets;
1486		sinfo->tx_failed = node->stats.tx_failed;
1487
1488		mwifiex_parse_htinfo(priv, priv->tx_rate,
1489				     node->stats.last_tx_htinfo,
1490				     &sinfo->txrate);
1491		sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1492
1493		return 0;
1494	}
1495
1496	/* Get signal information from the firmware */
1497	if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1498			     HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1499		mwifiex_dbg(priv->adapter, ERROR,
1500			    "failed to get signal information\n");
1501		return -EFAULT;
1502	}
1503
1504	if (mwifiex_drv_get_data_rate(priv, &rate)) {
1505		mwifiex_dbg(priv->adapter, ERROR,
1506			    "getting data rate error\n");
1507		return -EFAULT;
1508	}
1509
1510	/* Get DTIM period information from firmware */
1511	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1512			 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1513			 &priv->dtim_period, true);
1514
1515	mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo,
1516			     &sinfo->txrate);
1517
1518	sinfo->signal_avg = priv->bcn_rssi_avg;
1519	sinfo->rx_bytes = priv->stats.rx_bytes;
1520	sinfo->tx_bytes = priv->stats.tx_bytes;
1521	sinfo->rx_packets = priv->stats.rx_packets;
1522	sinfo->tx_packets = priv->stats.tx_packets;
1523	sinfo->signal = priv->bcn_rssi_avg;
1524	/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1525	sinfo->txrate.legacy = rate * 5;
1526
1527	sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE);
1528	mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo,
1529			     &sinfo->rxrate);
1530
1531	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1532		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1533		sinfo->bss_param.flags = 0;
1534		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1535						WLAN_CAPABILITY_SHORT_PREAMBLE)
1536			sinfo->bss_param.flags |=
1537					BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1538		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1539						WLAN_CAPABILITY_SHORT_SLOT_TIME)
1540			sinfo->bss_param.flags |=
1541					BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1542		sinfo->bss_param.dtim_period = priv->dtim_period;
1543		sinfo->bss_param.beacon_interval =
1544			priv->curr_bss_params.bss_descriptor.beacon_period;
1545	}
1546
1547	return 0;
1548}
1549
1550/*
1551 * CFG802.11 operation handler to get station information.
1552 *
1553 * This function only works in connected mode, and dumps the
1554 * requested station information, if available.
1555 */
1556static int
1557mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1558			     const u8 *mac, struct station_info *sinfo)
1559{
1560	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1561
1562	if (!priv->media_connected)
1563		return -ENOENT;
1564	if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1565		return -ENOENT;
1566
1567	return mwifiex_dump_station_info(priv, NULL, sinfo);
1568}
1569
1570/*
1571 * CFG802.11 operation handler to dump station information.
1572 */
1573static int
1574mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1575			      int idx, u8 *mac, struct station_info *sinfo)
1576{
1577	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1578	struct mwifiex_sta_node *node;
1579	int i;
1580
1581	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1582	    priv->media_connected && idx == 0) {
1583		ether_addr_copy(mac, priv->cfg_bssid);
1584		return mwifiex_dump_station_info(priv, NULL, sinfo);
1585	} else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1586		mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1587				 HostCmd_ACT_GEN_GET, 0, NULL, true);
1588
1589		i = 0;
1590		list_for_each_entry(node, &priv->sta_list, list) {
1591			if (i++ != idx)
1592				continue;
1593			ether_addr_copy(mac, node->mac_addr);
1594			return mwifiex_dump_station_info(priv, node, sinfo);
1595		}
1596	}
1597
1598	return -ENOENT;
1599}
1600
1601static int
1602mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1603			     int idx, struct survey_info *survey)
1604{
1605	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1606	struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1607	enum nl80211_band band;
1608
1609	mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1610
1611	memset(survey, 0, sizeof(struct survey_info));
1612
1613	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1614	    priv->media_connected && idx == 0) {
1615			u8 curr_bss_band = priv->curr_bss_params.band;
1616			u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1617
1618			band = mwifiex_band_to_radio_type(curr_bss_band);
1619			survey->channel = ieee80211_get_channel(wiphy,
1620				ieee80211_channel_to_frequency(chan, band));
1621
1622			if (priv->bcn_nf_last) {
1623				survey->filled = SURVEY_INFO_NOISE_DBM;
1624				survey->noise = priv->bcn_nf_last;
1625			}
1626			return 0;
1627	}
1628
1629	if (idx >= priv->adapter->num_in_chan_stats)
1630		return -ENOENT;
1631
1632	if (!pchan_stats[idx].cca_scan_dur)
1633		return 0;
1634
1635	band = pchan_stats[idx].bandcfg;
1636	survey->channel = ieee80211_get_channel(wiphy,
1637	    ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1638	survey->filled = SURVEY_INFO_NOISE_DBM |
1639			 SURVEY_INFO_TIME |
1640			 SURVEY_INFO_TIME_BUSY;
1641	survey->noise = pchan_stats[idx].noise;
1642	survey->time = pchan_stats[idx].cca_scan_dur;
1643	survey->time_busy = pchan_stats[idx].cca_busy_dur;
1644
1645	return 0;
1646}
1647
1648/* Supported rates to be advertised to the cfg80211 */
1649static struct ieee80211_rate mwifiex_rates[] = {
1650	{.bitrate = 10, .hw_value = 2, },
1651	{.bitrate = 20, .hw_value = 4, },
1652	{.bitrate = 55, .hw_value = 11, },
1653	{.bitrate = 110, .hw_value = 22, },
1654	{.bitrate = 60, .hw_value = 12, },
1655	{.bitrate = 90, .hw_value = 18, },
1656	{.bitrate = 120, .hw_value = 24, },
1657	{.bitrate = 180, .hw_value = 36, },
1658	{.bitrate = 240, .hw_value = 48, },
1659	{.bitrate = 360, .hw_value = 72, },
1660	{.bitrate = 480, .hw_value = 96, },
1661	{.bitrate = 540, .hw_value = 108, },
1662};
1663
1664/* Channel definitions to be advertised to cfg80211 */
1665static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1666	{.center_freq = 2412, .hw_value = 1, },
1667	{.center_freq = 2417, .hw_value = 2, },
1668	{.center_freq = 2422, .hw_value = 3, },
1669	{.center_freq = 2427, .hw_value = 4, },
1670	{.center_freq = 2432, .hw_value = 5, },
1671	{.center_freq = 2437, .hw_value = 6, },
1672	{.center_freq = 2442, .hw_value = 7, },
1673	{.center_freq = 2447, .hw_value = 8, },
1674	{.center_freq = 2452, .hw_value = 9, },
1675	{.center_freq = 2457, .hw_value = 10, },
1676	{.center_freq = 2462, .hw_value = 11, },
1677	{.center_freq = 2467, .hw_value = 12, },
1678	{.center_freq = 2472, .hw_value = 13, },
1679	{.center_freq = 2484, .hw_value = 14, },
1680};
1681
1682static struct ieee80211_supported_band mwifiex_band_2ghz = {
1683	.channels = mwifiex_channels_2ghz,
1684	.n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1685	.bitrates = mwifiex_rates,
1686	.n_bitrates = ARRAY_SIZE(mwifiex_rates),
1687};
1688
1689static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1690	{.center_freq = 5040, .hw_value = 8, },
1691	{.center_freq = 5060, .hw_value = 12, },
1692	{.center_freq = 5080, .hw_value = 16, },
1693	{.center_freq = 5170, .hw_value = 34, },
1694	{.center_freq = 5190, .hw_value = 38, },
1695	{.center_freq = 5210, .hw_value = 42, },
1696	{.center_freq = 5230, .hw_value = 46, },
1697	{.center_freq = 5180, .hw_value = 36, },
1698	{.center_freq = 5200, .hw_value = 40, },
1699	{.center_freq = 5220, .hw_value = 44, },
1700	{.center_freq = 5240, .hw_value = 48, },
1701	{.center_freq = 5260, .hw_value = 52, },
1702	{.center_freq = 5280, .hw_value = 56, },
1703	{.center_freq = 5300, .hw_value = 60, },
1704	{.center_freq = 5320, .hw_value = 64, },
1705	{.center_freq = 5500, .hw_value = 100, },
1706	{.center_freq = 5520, .hw_value = 104, },
1707	{.center_freq = 5540, .hw_value = 108, },
1708	{.center_freq = 5560, .hw_value = 112, },
1709	{.center_freq = 5580, .hw_value = 116, },
1710	{.center_freq = 5600, .hw_value = 120, },
1711	{.center_freq = 5620, .hw_value = 124, },
1712	{.center_freq = 5640, .hw_value = 128, },
1713	{.center_freq = 5660, .hw_value = 132, },
1714	{.center_freq = 5680, .hw_value = 136, },
1715	{.center_freq = 5700, .hw_value = 140, },
1716	{.center_freq = 5745, .hw_value = 149, },
1717	{.center_freq = 5765, .hw_value = 153, },
1718	{.center_freq = 5785, .hw_value = 157, },
1719	{.center_freq = 5805, .hw_value = 161, },
1720	{.center_freq = 5825, .hw_value = 165, },
1721};
1722
1723static struct ieee80211_supported_band mwifiex_band_5ghz = {
1724	.channels = mwifiex_channels_5ghz,
1725	.n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1726	.bitrates = mwifiex_rates + 4,
1727	.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1728};
1729
1730
1731/* Supported crypto cipher suits to be advertised to cfg80211 */
1732static const u32 mwifiex_cipher_suites[] = {
1733	WLAN_CIPHER_SUITE_WEP40,
1734	WLAN_CIPHER_SUITE_WEP104,
1735	WLAN_CIPHER_SUITE_TKIP,
1736	WLAN_CIPHER_SUITE_CCMP,
1737	WLAN_CIPHER_SUITE_SMS4,
1738	WLAN_CIPHER_SUITE_AES_CMAC,
1739};
1740
1741/* Supported mgmt frame types to be advertised to cfg80211 */
1742static const struct ieee80211_txrx_stypes
1743mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1744	[NL80211_IFTYPE_STATION] = {
1745		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1746		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1747		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1748		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1749	},
1750	[NL80211_IFTYPE_AP] = {
1751		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1752		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1753		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1754		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1755	},
1756	[NL80211_IFTYPE_P2P_CLIENT] = {
1757		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1758		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1759		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1760		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1761	},
1762	[NL80211_IFTYPE_P2P_GO] = {
1763		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1764		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1765		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1766		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1767	},
1768};
1769
1770/*
1771 * CFG802.11 operation handler for setting bit rates.
1772 *
1773 * Function configures data rates to firmware using bitrate mask
1774 * provided by cfg80211.
1775 */
1776static int
1777mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1778				  struct net_device *dev,
1779				  unsigned int link_id,
1780				  const u8 *peer,
1781				  const struct cfg80211_bitrate_mask *mask)
1782{
1783	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1784	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1785	enum nl80211_band band;
1786	struct mwifiex_adapter *adapter = priv->adapter;
1787
1788	if (!priv->media_connected) {
1789		mwifiex_dbg(adapter, ERROR,
1790			    "Can not set Tx data rate in disconnected state\n");
1791		return -EINVAL;
1792	}
1793
1794	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1795
1796	memset(bitmap_rates, 0, sizeof(bitmap_rates));
1797
1798	/* Fill HR/DSSS rates. */
1799	if (band == NL80211_BAND_2GHZ)
1800		bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1801
1802	/* Fill OFDM rates */
1803	if (band == NL80211_BAND_2GHZ)
1804		bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1805	else
1806		bitmap_rates[1] = mask->control[band].legacy;
1807
1808	/* Fill HT MCS rates */
1809	bitmap_rates[2] = mask->control[band].ht_mcs[0];
1810	if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1811		bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1812
1813       /* Fill VHT MCS rates */
1814	if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1815		bitmap_rates[10] = mask->control[band].vht_mcs[0];
1816		if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1817			bitmap_rates[11] = mask->control[band].vht_mcs[1];
1818	}
1819
1820	return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1821				HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1822}
1823
1824/*
1825 * CFG802.11 operation handler for connection quality monitoring.
1826 *
1827 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1828 * events to FW.
1829 */
1830static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1831						struct net_device *dev,
1832						s32 rssi_thold, u32 rssi_hyst)
1833{
1834	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1835	struct mwifiex_ds_misc_subsc_evt subsc_evt;
1836
1837	priv->cqm_rssi_thold = rssi_thold;
1838	priv->cqm_rssi_hyst = rssi_hyst;
1839
1840	memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1841	subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1842
1843	/* Subscribe/unsubscribe low and high rssi events */
1844	if (rssi_thold && rssi_hyst) {
1845		subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1846		subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1847		subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1848		subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1849		subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1850		return mwifiex_send_cmd(priv,
1851					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1852					0, 0, &subsc_evt, true);
1853	} else {
1854		subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1855		return mwifiex_send_cmd(priv,
1856					HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1857					0, 0, &subsc_evt, true);
1858	}
1859
1860	return 0;
1861}
1862
1863/* cfg80211 operation handler for change_beacon.
1864 * Function retrieves and sets modified management IEs to FW.
1865 */
1866static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1867					  struct net_device *dev,
1868					  struct cfg80211_ap_update *params)
1869{
1870	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1871	struct mwifiex_adapter *adapter = priv->adapter;
1872	struct cfg80211_beacon_data *data = &params->beacon;
1873
1874	mwifiex_cancel_scan(adapter);
1875
1876	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1877		mwifiex_dbg(priv->adapter, ERROR,
1878			    "%s: bss_type mismatched\n", __func__);
1879		return -EINVAL;
1880	}
1881
1882	if (!priv->bss_started) {
1883		mwifiex_dbg(priv->adapter, ERROR,
1884			    "%s: bss not started\n", __func__);
1885		return -EINVAL;
1886	}
1887
1888	if (mwifiex_set_mgmt_ies(priv, data)) {
1889		mwifiex_dbg(priv->adapter, ERROR,
1890			    "%s: setting mgmt ies failed\n", __func__);
1891		return -EFAULT;
1892	}
1893
1894	return 0;
1895}
1896
1897/* cfg80211 operation handler for del_station.
1898 * Function deauthenticates station which value is provided in mac parameter.
1899 * If mac is NULL/broadcast, all stations in associated station list are
1900 * deauthenticated. If bss is not started or there are no stations in
1901 * associated stations list, no action is taken.
1902 */
1903static int
1904mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1905			     struct station_del_parameters *params)
1906{
1907	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1908	struct mwifiex_sta_node *sta_node;
1909	u8 deauth_mac[ETH_ALEN];
1910
1911	if (!priv->bss_started && priv->wdev.links[0].cac_started) {
1912		mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1913		mwifiex_abort_cac(priv);
1914	}
1915
1916	if (list_empty(&priv->sta_list) || !priv->bss_started)
1917		return 0;
1918
1919	if (!params->mac || is_broadcast_ether_addr(params->mac))
1920		return 0;
1921
1922	mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1923		    __func__, params->mac);
1924
1925	eth_zero_addr(deauth_mac);
1926
1927	spin_lock_bh(&priv->sta_list_spinlock);
1928	sta_node = mwifiex_get_sta_entry(priv, params->mac);
1929	if (sta_node)
1930		ether_addr_copy(deauth_mac, params->mac);
1931	spin_unlock_bh(&priv->sta_list_spinlock);
1932
1933	if (is_valid_ether_addr(deauth_mac)) {
1934		if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1935				     HostCmd_ACT_GEN_SET, 0,
1936				     deauth_mac, true))
1937			return -1;
1938	}
1939
1940	return 0;
1941}
1942
1943static int
1944mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, int radio_idx, u32 tx_ant,
1945			     u32 rx_ant)
1946{
1947	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1948	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1949							MWIFIEX_BSS_ROLE_ANY);
1950	struct mwifiex_ds_ant_cfg ant_cfg;
1951
1952	if (!tx_ant || !rx_ant)
1953		return -EOPNOTSUPP;
1954
1955	if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1956		/* Not a MIMO chip. User should provide specific antenna number
1957		 * for Tx/Rx path or enable all antennas for diversity
1958		 */
1959		if (tx_ant != rx_ant)
1960			return -EOPNOTSUPP;
1961
1962		if ((tx_ant & (tx_ant - 1)) &&
1963		    (tx_ant != BIT(adapter->number_of_antenna) - 1))
1964			return -EOPNOTSUPP;
1965
1966		if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1967		    (priv->adapter->number_of_antenna > 1)) {
1968			tx_ant = RF_ANTENNA_AUTO;
1969			rx_ant = RF_ANTENNA_AUTO;
1970		}
1971	} else {
1972		struct ieee80211_sta_ht_cap *ht_info;
1973		int rx_mcs_supp;
1974		enum nl80211_band band;
1975
1976		if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1977			adapter->user_dev_mcs_support = HT_STREAM_1X1;
1978			if (adapter->is_hw_11ac_capable)
1979				adapter->usr_dot_11ac_mcs_support =
1980						MWIFIEX_11AC_MCS_MAP_1X1;
1981		} else {
1982			adapter->user_dev_mcs_support = HT_STREAM_2X2;
1983			if (adapter->is_hw_11ac_capable)
1984				adapter->usr_dot_11ac_mcs_support =
1985						MWIFIEX_11AC_MCS_MAP_2X2;
1986		}
1987
1988		for (band = 0; band < NUM_NL80211_BANDS; band++) {
1989			if (!adapter->wiphy->bands[band])
1990				continue;
1991
1992			ht_info = &adapter->wiphy->bands[band]->ht_cap;
1993			rx_mcs_supp =
1994				GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1995			memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1996			memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1997		}
1998	}
1999
2000	ant_cfg.tx_ant = tx_ant;
2001	ant_cfg.rx_ant = rx_ant;
2002
2003	return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
2004				HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
2005}
2006
2007static int
2008mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, int radio_idx, u32 *tx_ant,
2009			     u32 *rx_ant)
2010{
2011	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2012	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
2013							MWIFIEX_BSS_ROLE_ANY);
2014	mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
2015			 HostCmd_ACT_GEN_GET, 0, NULL, true);
2016
2017	*tx_ant = priv->tx_ant;
2018	*rx_ant = priv->rx_ant;
2019
2020	return 0;
2021}
2022
2023/* cfg80211 operation handler for stop ap.
2024 * Function stops BSS running at uAP interface.
2025 */
2026static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
2027				    unsigned int link_id)
2028{
2029	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2030
2031	mwifiex_abort_cac(priv);
2032
2033	if (mwifiex_del_mgmt_ies(priv))
2034		mwifiex_dbg(priv->adapter, ERROR,
2035			    "Failed to delete mgmt IEs!\n");
2036
2037	priv->ap_11n_enabled = 0;
2038	memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
2039
2040	if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
2041			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2042		mwifiex_dbg(priv->adapter, ERROR,
2043			    "Failed to stop the BSS\n");
2044		return -1;
2045	}
2046
2047	if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
2048			     HostCmd_ACT_GEN_SET, 0, NULL, true)) {
2049		mwifiex_dbg(priv->adapter, ERROR,
2050			    "Failed to reset BSS\n");
2051		return -1;
2052	}
2053
2054	if (netif_carrier_ok(priv->netdev))
2055		netif_carrier_off(priv->netdev);
2056	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2057
2058	return 0;
2059}
2060
2061/* cfg80211 operation handler for start_ap.
2062 * Function sets beacon period, DTIM period, SSID and security into
2063 * AP config structure.
2064 * AP is configured with these settings and BSS is started.
2065 */
2066static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
2067				     struct net_device *dev,
2068				     struct cfg80211_ap_settings *params)
2069{
2070	struct mwifiex_uap_bss_param *bss_cfg;
2071	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2072
2073	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
2074		return -1;
2075
2076	bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
2077	if (!bss_cfg)
2078		return -ENOMEM;
2079
2080	mwifiex_set_sys_config_invalid_data(bss_cfg);
2081
2082	memcpy(bss_cfg->mac_addr, priv->curr_addr, ETH_ALEN);
2083
2084	if (params->beacon_interval)
2085		bss_cfg->beacon_period = params->beacon_interval;
2086	if (params->dtim_period)
2087		bss_cfg->dtim_period = params->dtim_period;
2088
2089	if (params->ssid && params->ssid_len) {
2090		memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
2091		bss_cfg->ssid.ssid_len = params->ssid_len;
2092	}
2093	if (params->inactivity_timeout > 0) {
2094		/* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
2095		bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
2096		bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
2097	}
2098
2099	switch (params->hidden_ssid) {
2100	case NL80211_HIDDEN_SSID_NOT_IN_USE:
2101		bss_cfg->bcast_ssid_ctl = 1;
2102		break;
2103	case NL80211_HIDDEN_SSID_ZERO_LEN:
2104		bss_cfg->bcast_ssid_ctl = 0;
2105		break;
2106	case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
2107		bss_cfg->bcast_ssid_ctl = 2;
2108		break;
2109	default:
2110		kfree(bss_cfg);
2111		return -EINVAL;
2112	}
2113
2114	mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
2115	mwifiex_set_uap_rates(bss_cfg, params);
2116
2117	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
2118		mwifiex_dbg(priv->adapter, ERROR,
2119			    "Failed to parse security parameters!\n");
2120		goto out;
2121	}
2122
2123	mwifiex_set_ht_params(priv, bss_cfg, params);
2124
2125	if (priv->adapter->is_hw_11ac_capable) {
2126		mwifiex_set_vht_params(priv, bss_cfg, params);
2127		mwifiex_set_vht_width(priv, params->chandef.width,
2128				      priv->ap_11ac_enabled);
2129	}
2130
2131	if (priv->ap_11ac_enabled)
2132		mwifiex_set_11ac_ba_params(priv);
2133	else
2134		mwifiex_set_ba_params(priv);
2135
2136	mwifiex_set_wmm_params(priv, bss_cfg, params);
2137
2138	if (mwifiex_is_11h_active(priv))
2139		mwifiex_set_tpc_params(priv, bss_cfg, params);
2140
2141	if (mwifiex_is_11h_active(priv) &&
2142	    !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2143					   priv->bss_mode)) {
2144		mwifiex_dbg(priv->adapter, INFO,
2145			    "Disable 11h extensions in FW\n");
2146		if (mwifiex_11h_activate(priv, false)) {
2147			mwifiex_dbg(priv->adapter, ERROR,
2148				    "Failed to disable 11h extensions!!");
2149			goto out;
2150		}
2151		priv->state_11h.is_11h_active = false;
2152	}
2153
2154	mwifiex_config_uap_11d(priv, &params->beacon);
2155
2156	if (mwifiex_config_start_uap(priv, bss_cfg)) {
2157		mwifiex_dbg(priv->adapter, ERROR,
2158			    "Failed to start AP\n");
2159		goto out;
2160	}
2161
2162	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2163		goto out;
2164
2165	if (!netif_carrier_ok(priv->netdev))
2166		netif_carrier_on(priv->netdev);
2167	mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2168
2169	memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2170	kfree(bss_cfg);
2171	return 0;
2172
2173out:
2174	kfree(bss_cfg);
2175	return -1;
2176}
2177
2178/*
2179 * CFG802.11 operation handler for disconnection request.
2180 *
2181 * This function does not work when there is already a disconnection
2182 * procedure going on.
2183 */
2184static int
2185mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2186			    u16 reason_code)
2187{
2188	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2189
2190	if (!mwifiex_stop_bg_scan(priv))
2191		cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2192
2193	if (mwifiex_deauthenticate(priv, NULL))
2194		return -EFAULT;
2195
2196	eth_zero_addr(priv->cfg_bssid);
2197	priv->hs2_enabled = false;
2198
2199	return 0;
2200}
2201
2202/*
2203 * This function informs the CFG802.11 subsystem of a new IBSS.
2204 *
2205 * The following information are sent to the CFG802.11 subsystem
2206 * to register the new IBSS. If we do not register the new IBSS,
2207 * a kernel panic will result.
2208 *      - SSID
2209 *      - SSID length
2210 *      - BSSID
2211 *      - Channel
2212 */
2213static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2214{
2215	struct ieee80211_channel *chan;
2216	struct mwifiex_bss_info bss_info;
2217	struct cfg80211_bss *bss;
2218	int ie_len;
2219	u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2220	enum nl80211_band band;
2221
2222	if (mwifiex_get_bss_info(priv, &bss_info))
2223		return -1;
2224
2225	ie_buf[0] = WLAN_EID_SSID;
2226	ie_buf[1] = bss_info.ssid.ssid_len;
2227
2228	memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2229	       &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2230	ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2231
2232	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2233	chan = ieee80211_get_channel(priv->wdev.wiphy,
2234			ieee80211_channel_to_frequency(bss_info.bss_chan,
2235						       band));
2236
2237	bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2238				  CFG80211_BSS_FTYPE_UNKNOWN,
2239				  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2240				  0, ie_buf, ie_len, 0, GFP_KERNEL);
2241	if (bss) {
2242		cfg80211_put_bss(priv->wdev.wiphy, bss);
2243		ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2244	}
2245
2246	return 0;
2247}
2248
2249/*
2250 * This function connects with a BSS.
2251 *
2252 * This function handles both Infra and Ad-Hoc modes. It also performs
2253 * validity checking on the provided parameters, disconnects from the
2254 * current BSS (if any), sets up the association/scan parameters,
2255 * including security settings, and performs specific SSID scan before
2256 * trying to connect.
2257 *
2258 * For Infra mode, the function returns failure if the specified SSID
2259 * is not found in scan table. However, for Ad-Hoc mode, it can create
2260 * the IBSS if it does not exist. On successful completion in either case,
2261 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2262 */
2263static int
2264mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2265		       const u8 *ssid, const u8 *bssid, int mode,
2266		       struct ieee80211_channel *channel,
2267		       struct cfg80211_connect_params *sme, bool privacy,
2268		       struct cfg80211_bss **sel_bss)
2269{
2270	struct cfg80211_ssid req_ssid;
2271	int ret, auth_type = 0;
2272	struct cfg80211_bss *bss = NULL;
2273	u8 is_scanning_required = 0;
2274
2275	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2276
2277	req_ssid.ssid_len = ssid_len;
2278	if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2279		mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2280		return -EINVAL;
2281	}
2282
2283	memcpy(req_ssid.ssid, ssid, ssid_len);
2284	if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2285		mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2286		return -EINVAL;
2287	}
2288
2289	/* As this is new association, clear locally stored
2290	 * keys and security related flags */
2291	priv->sec_info.wpa_enabled = false;
2292	priv->sec_info.wpa2_enabled = false;
2293	priv->wep_key_curr_index = 0;
2294	priv->sec_info.encryption_mode = 0;
2295	priv->sec_info.is_authtype_auto = 0;
2296	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2297
2298	if (mode == NL80211_IFTYPE_ADHOC) {
2299		u16 enable = true;
2300
2301		/* set ibss coalescing_status */
2302		ret = mwifiex_send_cmd(
2303				priv,
2304				HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2305				HostCmd_ACT_GEN_SET, 0, &enable, true);
2306		if (ret)
2307			return ret;
2308
2309		/* "privacy" is set only for ad-hoc mode */
2310		if (privacy) {
2311			/*
2312			 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2313			 * the firmware can find a matching network from the
2314			 * scan. The cfg80211 does not give us the encryption
2315			 * mode at this stage so just setting it to WEP here.
2316			 */
2317			priv->sec_info.encryption_mode =
2318					WLAN_CIPHER_SUITE_WEP104;
2319			priv->sec_info.authentication_mode =
2320					NL80211_AUTHTYPE_OPEN_SYSTEM;
2321		}
2322
2323		goto done;
2324	}
2325
2326	/* Now handle infra mode. "sme" is valid for infra mode only */
2327	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2328		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2329		priv->sec_info.is_authtype_auto = 1;
2330	} else {
2331		auth_type = sme->auth_type;
2332	}
2333
2334	if (sme->crypto.n_ciphers_pairwise) {
2335		priv->sec_info.encryption_mode =
2336						sme->crypto.ciphers_pairwise[0];
2337		priv->sec_info.authentication_mode = auth_type;
2338	}
2339
2340	if (sme->crypto.cipher_group) {
2341		priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2342		priv->sec_info.authentication_mode = auth_type;
2343	}
2344	if (sme->ie)
2345		ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2346
2347	if (sme->key) {
2348		if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2349			mwifiex_dbg(priv->adapter, INFO,
2350				    "info: setting wep encryption\t"
2351				    "with key len %d\n", sme->key_len);
2352			priv->wep_key_curr_index = sme->key_idx;
2353			ret = mwifiex_set_encode(priv, NULL, sme->key,
2354						 sme->key_len, sme->key_idx,
2355						 NULL, 0);
2356		}
2357	}
2358done:
2359	/*
2360	 * Scan entries are valid for some time (15 sec). So we can save one
2361	 * active scan time if we just try cfg80211_get_bss first. If it fails
2362	 * then request scan and cfg80211_get_bss() again for final output.
2363	 */
2364	while (1) {
2365		if (is_scanning_required) {
2366			/* Do specific SSID scanning */
2367			if (mwifiex_request_scan(priv, &req_ssid)) {
2368				mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2369				return -EFAULT;
2370			}
2371		}
2372
2373		/* Find the BSS we want using available scan results */
2374		if (mode == NL80211_IFTYPE_ADHOC)
2375			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2376					       bssid, ssid, ssid_len,
2377					       IEEE80211_BSS_TYPE_IBSS,
2378					       IEEE80211_PRIVACY_ANY);
2379		else
2380			bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2381					       bssid, ssid, ssid_len,
2382					       IEEE80211_BSS_TYPE_ESS,
2383					       IEEE80211_PRIVACY_ANY);
2384
2385		if (!bss) {
2386			if (is_scanning_required) {
2387				mwifiex_dbg(priv->adapter, MSG,
2388					    "assoc: requested bss not found in scan results\n");
2389				break;
2390			}
2391			is_scanning_required = 1;
2392		} else {
2393			mwifiex_dbg(priv->adapter, MSG,
2394				    "info: trying to associate to bssid %pM\n",
2395				    bss->bssid);
2396			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2397			break;
2398		}
2399	}
2400
2401	if (bss)
2402		cfg80211_ref_bss(priv->adapter->wiphy, bss);
2403
2404	ret = mwifiex_bss_start(priv, bss, &req_ssid);
2405	if (ret)
2406		goto cleanup;
2407
2408	if (mode == NL80211_IFTYPE_ADHOC) {
2409		/* Inform the BSS information to kernel, otherwise
2410		 * kernel will give a panic after successful assoc */
2411		if (mwifiex_cfg80211_inform_ibss_bss(priv)) {
2412			ret = -EFAULT;
2413			goto cleanup;
2414		}
2415	}
2416
2417	/* Pass the selected BSS entry to caller. */
2418	if (sel_bss) {
2419		*sel_bss = bss;
2420		bss = NULL;
2421	}
2422
2423cleanup:
2424	if (bss)
2425		cfg80211_put_bss(priv->adapter->wiphy, bss);
2426	return ret;
2427}
2428
2429/*
2430 * CFG802.11 operation handler for association request.
2431 *
2432 * This function does not work when the current mode is set to Ad-Hoc, or
2433 * when there is already an association procedure going on. The given BSS
2434 * information is used to associate.
2435 */
2436static int
2437mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2438			 struct cfg80211_connect_params *sme)
2439{
2440	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2441	struct mwifiex_adapter *adapter = priv->adapter;
2442	struct cfg80211_bss *bss = NULL;
2443	int ret;
2444
2445	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2446		mwifiex_dbg(adapter, ERROR,
2447			    "%s: reject infra assoc request in non-STA role\n",
2448			    dev->name);
2449		return -EINVAL;
2450	}
2451
2452	if (priv->wdev.connected) {
2453		mwifiex_dbg(adapter, ERROR,
2454			    "%s: already connected\n", dev->name);
2455		return -EALREADY;
2456	}
2457
2458	if (priv->scan_block)
2459		priv->scan_block = false;
2460
2461	if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
2462	    test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
2463		mwifiex_dbg(adapter, ERROR,
2464			    "%s: Ignore connection.\t"
2465			    "Card removed or FW in bad state\n",
2466			    dev->name);
2467		return -EFAULT;
2468	}
2469
2470	mwifiex_dbg(adapter, INFO,
2471		    "info: Trying to associate to bssid %pM\n", sme->bssid);
2472
2473	if (!mwifiex_stop_bg_scan(priv))
2474		cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2475
2476	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2477				     priv->bss_mode, sme->channel, sme, 0,
2478				     &bss);
2479	if (!ret) {
2480		cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL,
2481				     0, NULL, 0, WLAN_STATUS_SUCCESS,
2482				     GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED);
2483		mwifiex_dbg(priv->adapter, MSG,
2484			    "info: associated to bssid %pM successfully\n",
2485			    priv->cfg_bssid);
2486		if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2487		    priv->adapter->auto_tdls &&
2488		    priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2489			mwifiex_setup_auto_tdls_timer(priv);
2490	} else {
2491		mwifiex_dbg(priv->adapter, ERROR,
2492			    "info: association to bssid %pM failed\n",
2493			    priv->cfg_bssid);
2494		eth_zero_addr(priv->cfg_bssid);
2495
2496		if (ret > 0)
2497			cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2498						NULL, 0, NULL, 0, ret,
2499						GFP_KERNEL);
2500		else
2501			cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2502						NULL, 0, NULL, 0,
2503						WLAN_STATUS_UNSPECIFIED_FAILURE,
2504						GFP_KERNEL);
2505	}
2506
2507	return 0;
2508}
2509
2510/*
2511 * This function sets following parameters for ibss network.
2512 *  -  channel
2513 *  -  start band
2514 *  -  11n flag
2515 *  -  secondary channel offset
2516 */
2517static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2518				   struct cfg80211_ibss_params *params)
2519{
2520	struct mwifiex_adapter *adapter = priv->adapter;
2521	int index = 0, i;
2522	u8 config_bands = 0;
2523
2524	if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2525		if (!params->basic_rates) {
2526			config_bands = BAND_B | BAND_G;
2527		} else {
2528			for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2529				/*
2530				 * Rates below 6 Mbps in the table are CCK
2531				 * rates; 802.11b and from 6 they are OFDM;
2532				 * 802.11G
2533				 */
2534				if (mwifiex_rates[i].bitrate == 60) {
2535					index = 1 << i;
2536					break;
2537				}
2538			}
2539
2540			if (params->basic_rates < index) {
2541				config_bands = BAND_B;
2542			} else {
2543				config_bands = BAND_G;
2544				if (params->basic_rates % index)
2545					config_bands |= BAND_B;
2546			}
2547		}
2548
2549		if (cfg80211_get_chandef_type(&params->chandef) !=
2550						NL80211_CHAN_NO_HT)
2551			config_bands |= BAND_G | BAND_GN;
2552	} else {
2553		if (cfg80211_get_chandef_type(&params->chandef) ==
2554						NL80211_CHAN_NO_HT)
2555			config_bands = BAND_A;
2556		else
2557			config_bands = BAND_AN | BAND_A;
2558	}
2559
2560	if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2561		adapter->config_bands = config_bands;
2562		adapter->adhoc_start_band = config_bands;
2563
2564		if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2565			adapter->adhoc_11n_enabled = true;
2566		else
2567			adapter->adhoc_11n_enabled = false;
2568	}
2569
2570	adapter->sec_chan_offset =
2571		mwifiex_chan_type_to_sec_chan_offset(
2572			cfg80211_get_chandef_type(&params->chandef));
2573	priv->adhoc_channel = ieee80211_frequency_to_channel(
2574				params->chandef.chan->center_freq);
2575
2576	mwifiex_dbg(adapter, INFO,
2577		    "info: set ibss band %d, chan %d, chan offset %d\n",
2578		    config_bands, priv->adhoc_channel,
2579		    adapter->sec_chan_offset);
2580
2581	return 0;
2582}
2583
2584/*
2585 * CFG802.11 operation handler to join an IBSS.
2586 *
2587 * This function does not work in any mode other than Ad-Hoc, or if
2588 * a join operation is already in progress.
2589 */
2590static int
2591mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2592			   struct cfg80211_ibss_params *params)
2593{
2594	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2595	int ret = 0;
2596
2597	if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2598		mwifiex_dbg(priv->adapter, ERROR,
2599			    "request to join ibss received\t"
2600			    "when station is not in ibss mode\n");
2601		goto done;
2602	}
2603
2604	mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n",
2605		    params->bssid);
2606
2607	mwifiex_set_ibss_params(priv, params);
2608
2609	ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2610				     params->bssid, priv->bss_mode,
2611				     params->chandef.chan, NULL,
2612				     params->privacy, NULL);
2613done:
2614	if (!ret) {
2615		cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2616				     params->chandef.chan, GFP_KERNEL);
2617		mwifiex_dbg(priv->adapter, MSG,
2618			    "info: joined/created adhoc network with bssid\t"
2619			    "%pM successfully\n", priv->cfg_bssid);
2620	} else {
2621		mwifiex_dbg(priv->adapter, ERROR,
2622			    "info: failed creating/joining adhoc network\n");
2623	}
2624
2625	return ret;
2626}
2627
2628/*
2629 * CFG802.11 operation handler to leave an IBSS.
2630 *
2631 * This function does not work if a leave operation is
2632 * already in progress.
2633 */
2634static int
2635mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2636{
2637	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2638
2639	mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2640		    priv->cfg_bssid);
2641	if (mwifiex_deauthenticate(priv, NULL))
2642		return -EFAULT;
2643
2644	eth_zero_addr(priv->cfg_bssid);
2645
2646	return 0;
2647}
2648
2649/*
2650 * CFG802.11 operation handler for scan request.
2651 *
2652 * This function issues a scan request to the firmware based upon
2653 * the user specified scan configuration. On successful completion,
2654 * it also informs the results.
2655 */
2656static int
2657mwifiex_cfg80211_scan(struct wiphy *wiphy,
2658		      struct cfg80211_scan_request *request)
2659{
2660	struct net_device *dev = request->wdev->netdev;
2661	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2662	int i, offset, ret;
2663	struct ieee80211_channel *chan;
2664	struct ieee_types_header *ie;
2665	struct mwifiex_user_scan_cfg *user_scan_cfg;
2666	u8 mac_addr[ETH_ALEN];
2667
2668	mwifiex_dbg(priv->adapter, CMD,
2669		    "info: received scan request on %s\n", dev->name);
2670
2671	/* Block scan request if scan operation or scan cleanup when interface
2672	 * is disabled is in process
2673	 */
2674	if (priv->scan_request || priv->scan_aborting) {
2675		mwifiex_dbg(priv->adapter, WARN,
2676			    "cmd: Scan already in process..\n");
2677		return -EBUSY;
2678	}
2679
2680	if (!priv->wdev.connected && priv->scan_block)
2681		priv->scan_block = false;
2682
2683	if (!mwifiex_stop_bg_scan(priv))
2684		cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
2685
2686	user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2687	if (!user_scan_cfg)
2688		return -ENOMEM;
2689
2690	priv->scan_request = request;
2691
2692	if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2693		get_random_mask_addr(mac_addr, request->mac_addr,
2694				     request->mac_addr_mask);
2695		ether_addr_copy(request->mac_addr, mac_addr);
2696		ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2697	}
2698
2699	user_scan_cfg->num_ssids = request->n_ssids;
2700	user_scan_cfg->ssid_list = request->ssids;
2701
2702	if (request->ie && request->ie_len) {
2703		offset = 0;
2704		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2705			if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2706				continue;
2707			priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2708			ie = (struct ieee_types_header *)(request->ie + offset);
2709			memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2710			offset += sizeof(*ie) + ie->len;
2711
2712			if (offset >= request->ie_len)
2713				break;
2714		}
2715	}
2716
2717	for (i = 0; i < min_t(u32, request->n_channels,
2718			      MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2719		chan = request->channels[i];
2720		user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2721		user_scan_cfg->chan_list[i].radio_type = chan->band;
2722
2723		if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2724			user_scan_cfg->chan_list[i].scan_type =
2725						MWIFIEX_SCAN_TYPE_PASSIVE;
2726		else
2727			user_scan_cfg->chan_list[i].scan_type =
2728						MWIFIEX_SCAN_TYPE_ACTIVE;
2729
2730		user_scan_cfg->chan_list[i].scan_time = 0;
2731	}
2732
2733	if (priv->adapter->scan_chan_gap_enabled &&
2734	    mwifiex_is_any_intf_active(priv))
2735		user_scan_cfg->scan_chan_gap =
2736					      priv->adapter->scan_chan_gap_time;
2737
2738	ret = mwifiex_scan_networks(priv, user_scan_cfg);
2739	kfree(user_scan_cfg);
2740	if (ret) {
2741		mwifiex_dbg(priv->adapter, ERROR,
2742			    "scan failed: %d\n", ret);
2743		priv->scan_aborting = false;
2744		priv->scan_request = NULL;
2745		return ret;
2746	}
2747
2748	if (request->ie && request->ie_len) {
2749		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2750			if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2751				priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2752				memset(&priv->vs_ie[i].ie, 0,
2753				       MWIFIEX_MAX_VSIE_LEN);
2754			}
2755		}
2756	}
2757	return 0;
2758}
2759
2760/* CFG802.11 operation handler for sched_scan_start.
2761 *
2762 * This function issues a bgscan config request to the firmware based upon
2763 * the user specified sched_scan configuration. On successful completion,
2764 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2765 * query command to get sched_scan results from firmware.
2766 */
2767static int
2768mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2769				  struct net_device *dev,
2770				  struct cfg80211_sched_scan_request *request)
2771{
2772	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2773	int i, offset;
2774	struct ieee80211_channel *chan;
2775	struct mwifiex_bg_scan_cfg *bgscan_cfg;
2776	struct ieee_types_header *ie;
2777
2778	if (!request || (!request->n_ssids && !request->n_match_sets)) {
2779		wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2780			  __func__);
2781		return -EINVAL;
2782	}
2783
2784	wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2785		   request->n_ssids, request->n_match_sets);
2786	wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2787		   request->n_channels, request->scan_plans->interval,
2788		   (int)request->ie_len);
2789
2790	bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2791	if (!bgscan_cfg)
2792		return -ENOMEM;
2793
2794	if (priv->scan_request || priv->scan_aborting)
2795		bgscan_cfg->start_later = true;
2796
2797	bgscan_cfg->num_ssids = request->n_match_sets;
2798	bgscan_cfg->ssid_list = request->match_sets;
2799
2800	if (request->ie && request->ie_len) {
2801		offset = 0;
2802		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2803			if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2804				continue;
2805			priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2806			ie = (struct ieee_types_header *)(request->ie + offset);
2807			memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2808			offset += sizeof(*ie) + ie->len;
2809
2810			if (offset >= request->ie_len)
2811				break;
2812		}
2813	}
2814
2815	for (i = 0; i < min_t(u32, request->n_channels,
2816			      MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2817		chan = request->channels[i];
2818		bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2819		bgscan_cfg->chan_list[i].radio_type = chan->band;
2820
2821		if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2822			bgscan_cfg->chan_list[i].scan_type =
2823						MWIFIEX_SCAN_TYPE_PASSIVE;
2824		else
2825			bgscan_cfg->chan_list[i].scan_type =
2826						MWIFIEX_SCAN_TYPE_ACTIVE;
2827
2828		bgscan_cfg->chan_list[i].scan_time = 0;
2829	}
2830
2831	bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2832					  MWIFIEX_BG_SCAN_CHAN_MAX);
2833
2834	/* Use at least 15 second for per scan cycle */
2835	bgscan_cfg->scan_interval = (request->scan_plans->interval >
2836				     MWIFIEX_BGSCAN_INTERVAL) ?
2837				request->scan_plans->interval :
2838				MWIFIEX_BGSCAN_INTERVAL;
2839
2840	bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2841	bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2842				MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2843	bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2844	bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2845	bgscan_cfg->enable = true;
2846	if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2847		bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2848		bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2849	}
2850
2851	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2852			     HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2853		kfree(bgscan_cfg);
2854		return -EFAULT;
2855	}
2856
2857	priv->sched_scanning = true;
2858
2859	kfree(bgscan_cfg);
2860	return 0;
2861}
2862
2863/* CFG802.11 operation handler for sched_scan_stop.
2864 *
2865 * This function issues a bgscan config command to disable
2866 * previous bgscan configuration in the firmware
2867 */
2868static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2869					    struct net_device *dev, u64 reqid)
2870{
2871	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2872
2873	wiphy_info(wiphy, "sched scan stop!");
2874	mwifiex_stop_bg_scan(priv);
2875
2876	return 0;
2877}
2878
2879static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2880				   struct mwifiex_private *priv)
2881{
2882	struct mwifiex_adapter *adapter = priv->adapter;
2883
2884	vht_info->vht_supported = true;
2885
2886	vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2887	/* Update MCS support for VHT */
2888	vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2889				adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2890	vht_info->vht_mcs.rx_highest = 0;
2891	vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2892				adapter->hw_dot_11ac_mcs_support >> 16);
2893	vht_info->vht_mcs.tx_highest = 0;
2894}
2895
2896/*
2897 * This function sets up the CFG802.11 specific HT capability fields
2898 * with default values.
2899 *
2900 * The following default values are set -
2901 *      - HT Supported = True
2902 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2903 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2904 *      - HT Capabilities supported by firmware
2905 *      - MCS information, Rx mask = 0xff
2906 *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2907 */
2908static void
2909mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2910		      struct mwifiex_private *priv)
2911{
2912	int rx_mcs_supp;
2913	struct mwifiex_adapter *adapter = priv->adapter;
2914
2915	ht_info->ht_supported = true;
2916	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2917	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2918
2919	/* Fill HT capability information */
2920	if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2921		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2922	else
2923		ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2924
2925	if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2926		ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2927	else
2928		ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2929
2930	if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2931		ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2932	else
2933		ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2934
2935	if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2936		ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2937	else
2938		ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2939
2940	if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2941		ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2942	else
2943		ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2944
2945	if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2946		ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2947	else
2948		ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2949
2950	if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2951		ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2952	else
2953		ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2954
2955	if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2956		ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2957	else
2958		ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2959
2960	ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2961	ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2962
2963	rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2964
2965	memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2966	/* Set MCS for 1x1/2x2 */
2967	memset(ht_info->mcs.rx_mask, 0xff, rx_mcs_supp);
2968
2969	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2970	    ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2971		/* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2972		SETHT_MCS32(ht_info->mcs.rx_mask);
2973
2974	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2975}
2976
2977/*
2978 *  create a new virtual interface with the given name and name assign type
2979 */
2980struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2981					      const char *name,
2982					      unsigned char name_assign_type,
2983					      enum nl80211_iftype type,
2984					      struct vif_params *params)
2985{
2986	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2987	struct mwifiex_private *priv;
2988	struct net_device *dev;
2989	void *mdev_priv;
2990	int ret;
2991
2992	if (!adapter)
2993		return ERR_PTR(-EFAULT);
2994
2995	switch (type) {
2996	case NL80211_IFTYPE_UNSPECIFIED:
2997	case NL80211_IFTYPE_STATION:
2998	case NL80211_IFTYPE_ADHOC:
2999		if (adapter->curr_iface_comb.sta_intf ==
3000		    adapter->iface_limit.sta_intf) {
3001			mwifiex_dbg(adapter, ERROR,
3002				    "cannot create multiple sta/adhoc ifaces\n");
3003			return ERR_PTR(-EINVAL);
3004		}
3005
3006		priv = mwifiex_get_unused_priv_by_bss_type(
3007						adapter, MWIFIEX_BSS_TYPE_STA);
3008		if (!priv) {
3009			mwifiex_dbg(adapter, ERROR,
3010				    "could not get free private struct\n");
3011			return ERR_PTR(-EFAULT);
3012		}
3013
3014		priv->wdev.iftype = NL80211_IFTYPE_STATION;
3015
3016		if (type == NL80211_IFTYPE_UNSPECIFIED)
3017			priv->bss_mode = NL80211_IFTYPE_STATION;
3018		else
3019			priv->bss_mode = type;
3020
3021		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
3022		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3023
3024		break;
3025	case NL80211_IFTYPE_AP:
3026		if (adapter->curr_iface_comb.uap_intf ==
3027		    adapter->iface_limit.uap_intf) {
3028			mwifiex_dbg(adapter, ERROR,
3029				    "cannot create multiple AP ifaces\n");
3030			return ERR_PTR(-EINVAL);
3031		}
3032
3033		priv = mwifiex_get_unused_priv_by_bss_type(
3034						adapter, MWIFIEX_BSS_TYPE_UAP);
3035		if (!priv) {
3036			mwifiex_dbg(adapter, ERROR,
3037				    "could not get free private struct\n");
3038			return ERR_PTR(-EFAULT);
3039		}
3040
3041		priv->wdev.iftype = NL80211_IFTYPE_AP;
3042
3043		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
3044		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
3045		priv->bss_mode = type;
3046
3047		break;
3048	case NL80211_IFTYPE_P2P_CLIENT:
3049		if (adapter->curr_iface_comb.p2p_intf ==
3050		    adapter->iface_limit.p2p_intf) {
3051			mwifiex_dbg(adapter, ERROR,
3052				    "cannot create multiple P2P ifaces\n");
3053			return ERR_PTR(-EINVAL);
3054		}
3055
3056		priv = mwifiex_get_unused_priv_by_bss_type(
3057						adapter, MWIFIEX_BSS_TYPE_P2P);
3058		if (!priv) {
3059			mwifiex_dbg(adapter, ERROR,
3060				    "could not get free private struct\n");
3061			return ERR_PTR(-EFAULT);
3062		}
3063
3064		/* At start-up, wpa_supplicant tries to change the interface
3065		 * to NL80211_IFTYPE_STATION if it is not managed mode.
3066		 */
3067		priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
3068		priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
3069
3070		/* Setting bss_type to P2P tells firmware that this interface
3071		 * is receiving P2P peers found during find phase and doing
3072		 * action frame handshake.
3073		 */
3074		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
3075
3076		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
3077
3078		if (mwifiex_cfg80211_init_p2p_client(priv)) {
3079			memset(&priv->wdev, 0, sizeof(priv->wdev));
3080			priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3081			return ERR_PTR(-EFAULT);
3082		}
3083
3084		break;
3085	default:
3086		mwifiex_dbg(adapter, ERROR, "type not supported\n");
3087		return ERR_PTR(-EINVAL);
3088	}
3089
3090	priv->wdev.wiphy = wiphy;
3091	priv->bss_priority = 0;
3092	priv->bss_started = 0;
3093	priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
3094
3095	dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
3096			       name_assign_type, ether_setup,
3097			       IEEE80211_NUM_ACS, 1);
3098	if (!dev) {
3099		mwifiex_dbg(adapter, ERROR,
3100			    "no memory available for netdevice\n");
3101		ret = -ENOMEM;
3102		goto err_alloc_netdev;
3103	}
3104
3105	mwifiex_init_priv_params(priv, dev);
3106
3107	priv->netdev = dev;
3108
3109	if (!adapter->mfg_mode) {
3110		mwifiex_set_mac_address(priv, dev, false, NULL);
3111
3112		ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
3113				       HostCmd_ACT_GEN_SET, 0, NULL, true);
3114		if (ret)
3115			goto err_set_bss_mode;
3116
3117		ret = mwifiex_sta_init_cmd(priv, false);
3118		if (ret)
3119			goto err_sta_init;
3120	}
3121
3122	mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
3123	if (adapter->is_hw_11ac_capable)
3124		mwifiex_setup_vht_caps(
3125			&wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
3126
3127	if (adapter->config_bands & BAND_A)
3128		mwifiex_setup_ht_caps(
3129			&wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3130
3131	if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3132		mwifiex_setup_vht_caps(
3133			&wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3134
3135	dev_net_set(dev, wiphy_net(wiphy));
3136	dev->ieee80211_ptr = &priv->wdev;
3137	dev->ieee80211_ptr->iftype = priv->bss_mode;
3138	SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3139
3140	dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3141	dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3142	dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN;
3143	dev->ethtool_ops = &mwifiex_ethtool_ops;
3144
3145	mdev_priv = netdev_priv(dev);
3146	*((unsigned long *) mdev_priv) = (unsigned long) priv;
3147
3148	SET_NETDEV_DEV(dev, adapter->dev);
3149
3150	priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3151						  WQ_HIGHPRI |
3152						  WQ_MEM_RECLAIM |
3153						  WQ_UNBOUND, 0, name);
3154	if (!priv->dfs_cac_workqueue) {
3155		mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3156		ret = -ENOMEM;
3157		goto err_alloc_cac;
3158	}
3159
3160	INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3161
3162	priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3163						      WQ_HIGHPRI | WQ_UNBOUND |
3164						      WQ_MEM_RECLAIM, 0, name);
3165	if (!priv->dfs_chan_sw_workqueue) {
3166		mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n");
3167		ret = -ENOMEM;
3168		goto err_alloc_chsw;
3169	}
3170
3171	INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
3172			  mwifiex_dfs_chan_sw_work_queue);
3173
3174	mutex_init(&priv->async_mutex);
3175
3176	/* Register network device */
3177	if (cfg80211_register_netdevice(dev)) {
3178		mwifiex_dbg(adapter, ERROR, "cannot register network device\n");
3179		ret = -EFAULT;
3180		goto err_reg_netdev;
3181	}
3182
3183	mwifiex_dbg(adapter, INFO,
3184		    "info: %s: Marvell 802.11 Adapter\n", dev->name);
3185
3186#ifdef CONFIG_DEBUG_FS
3187	mwifiex_dev_debugfs_init(priv);
3188#endif
3189
3190	update_vif_type_counter(adapter, type, +1);
3191
3192	return &priv->wdev;
3193
3194err_reg_netdev:
3195	destroy_workqueue(priv->dfs_chan_sw_workqueue);
3196	priv->dfs_chan_sw_workqueue = NULL;
3197err_alloc_chsw:
3198	destroy_workqueue(priv->dfs_cac_workqueue);
3199	priv->dfs_cac_workqueue = NULL;
3200err_alloc_cac:
3201	free_netdev(dev);
3202	priv->netdev = NULL;
3203err_sta_init:
3204err_set_bss_mode:
3205err_alloc_netdev:
3206	memset(&priv->wdev, 0, sizeof(priv->wdev));
3207	priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
3208	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3209	return ERR_PTR(ret);
3210}
3211EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
3212
3213/*
3214 * del_virtual_intf: remove the virtual interface determined by dev
3215 */
3216int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
3217{
3218	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3219	struct mwifiex_adapter *adapter = priv->adapter;
3220	struct sk_buff *skb, *tmp;
3221
3222#ifdef CONFIG_DEBUG_FS
3223	mwifiex_dev_debugfs_remove(priv);
3224#endif
3225
3226	if (priv->sched_scanning)
3227		priv->sched_scanning = false;
3228
3229	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
3230
3231	skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
3232		skb_unlink(skb, &priv->bypass_txq);
3233		mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
3234	}
3235
3236	if (netif_carrier_ok(priv->netdev))
3237		netif_carrier_off(priv->netdev);
3238
3239	if (wdev->netdev->reg_state == NETREG_REGISTERED)
3240		cfg80211_unregister_netdevice(wdev->netdev);
3241
3242	if (priv->dfs_cac_workqueue) {
3243		destroy_workqueue(priv->dfs_cac_workqueue);
3244		priv->dfs_cac_workqueue = NULL;
3245	}
3246
3247	if (priv->dfs_chan_sw_workqueue) {
3248		destroy_workqueue(priv->dfs_chan_sw_workqueue);
3249		priv->dfs_chan_sw_workqueue = NULL;
3250	}
3251	/* Clear the priv in adapter */
3252	priv->netdev = NULL;
3253
3254	update_vif_type_counter(adapter, priv->bss_mode, -1);
3255
3256	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
3257
3258	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
3259	    GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
3260		kfree(priv->hist_data);
3261
3262	return 0;
3263}
3264EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
3265
3266static bool
3267mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
3268			     u8 max_byte_seq)
3269{
3270	int j, k, valid_byte_cnt = 0;
3271	bool dont_care_byte = false;
3272
3273	for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
3274		for (k = 0; k < 8; k++) {
3275			if (pat->mask[j] & 1 << k) {
3276				memcpy(byte_seq + valid_byte_cnt,
3277				       &pat->pattern[j * 8 + k], 1);
3278				valid_byte_cnt++;
3279				if (dont_care_byte)
3280					return false;
3281			} else {
3282				if (valid_byte_cnt)
3283					dont_care_byte = true;
3284			}
3285
3286			/* wildcard bytes record as the offset
3287			 * before the valid byte
3288			 */
3289			if (!valid_byte_cnt && !dont_care_byte)
3290				pat->pkt_offset++;
3291
3292			if (valid_byte_cnt > max_byte_seq)
3293				return false;
3294		}
3295	}
3296
3297	byte_seq[max_byte_seq] = valid_byte_cnt;
3298
3299	return true;
3300}
3301
3302#ifdef CONFIG_PM
3303static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
3304					   struct mwifiex_mef_entry *mef_entry)
3305{
3306	int i, filt_num = 0, num_ipv4 = 0;
3307	struct in_device *in_dev;
3308	struct in_ifaddr *ifa;
3309	__be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
3310	struct mwifiex_adapter *adapter = priv->adapter;
3311
3312	mef_entry->mode = MEF_MODE_HOST_SLEEP;
3313	mef_entry->action = MEF_ACTION_AUTO_ARP;
3314
3315	/* Enable ARP offload feature */
3316	memset(ips, 0, sizeof(ips));
3317	for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
3318		if (adapter->priv[i]->netdev) {
3319			in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
3320			if (!in_dev)
3321				continue;
3322			ifa = rtnl_dereference(in_dev->ifa_list);
3323			if (!ifa || !ifa->ifa_local)
3324				continue;
3325			ips[i] = ifa->ifa_local;
3326			num_ipv4++;
3327		}
3328	}
3329
3330	for (i = 0; i < num_ipv4; i++) {
3331		if (!ips[i])
3332			continue;
3333		mef_entry->filter[filt_num].repeat = 1;
3334		memcpy(mef_entry->filter[filt_num].byte_seq,
3335		       (u8 *)&ips[i], sizeof(ips[i]));
3336		mef_entry->filter[filt_num].
3337			byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3338			sizeof(ips[i]);
3339		mef_entry->filter[filt_num].offset = 46;
3340		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3341		if (filt_num) {
3342			mef_entry->filter[filt_num].filt_action =
3343				TYPE_OR;
3344		}
3345		filt_num++;
3346	}
3347
3348	mef_entry->filter[filt_num].repeat = 1;
3349	mef_entry->filter[filt_num].byte_seq[0] = 0x08;
3350	mef_entry->filter[filt_num].byte_seq[1] = 0x06;
3351	mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
3352	mef_entry->filter[filt_num].offset = 20;
3353	mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3354	mef_entry->filter[filt_num].filt_action = TYPE_AND;
3355}
3356
3357static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3358					struct mwifiex_ds_mef_cfg *mef_cfg,
3359					struct mwifiex_mef_entry *mef_entry,
3360					struct cfg80211_wowlan *wowlan)
3361{
3362	int i, filt_num = 0, ret = 0;
3363	bool first_pat = true;
3364	u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3365	static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3366	static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3367
3368	mef_entry->mode = MEF_MODE_HOST_SLEEP;
3369	mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3370
3371	for (i = 0; i < wowlan->n_patterns; i++) {
3372		memset(byte_seq, 0, sizeof(byte_seq));
3373		if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3374					byte_seq,
3375					MWIFIEX_MEF_MAX_BYTESEQ)) {
3376			mwifiex_dbg(priv->adapter, ERROR,
3377				    "Pattern not supported\n");
3378			return -EOPNOTSUPP;
3379		}
3380
3381		if (!wowlan->patterns[i].pkt_offset) {
3382			if (is_unicast_ether_addr(byte_seq) &&
3383			    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3384				mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3385				continue;
3386			} else if (is_broadcast_ether_addr(byte_seq)) {
3387				mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3388				continue;
3389			} else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3390				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3391				   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3392				    (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3393				mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3394				continue;
3395			}
3396		}
3397		mef_entry->filter[filt_num].repeat = 1;
3398		mef_entry->filter[filt_num].offset =
3399			wowlan->patterns[i].pkt_offset;
3400		memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3401				sizeof(byte_seq));
3402		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3403
3404		if (first_pat) {
3405			first_pat = false;
3406			mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
3407		} else {
3408			mef_entry->filter[filt_num].filt_action = TYPE_AND;
3409		}
3410
3411		filt_num++;
3412	}
3413
3414	if (wowlan->magic_pkt) {
3415		mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3416		mef_entry->filter[filt_num].repeat = 16;
3417		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3418				ETH_ALEN);
3419		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3420			ETH_ALEN;
3421		mef_entry->filter[filt_num].offset = 28;
3422		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3423		if (filt_num)
3424			mef_entry->filter[filt_num].filt_action = TYPE_OR;
3425
3426		filt_num++;
3427		mef_entry->filter[filt_num].repeat = 16;
3428		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3429				ETH_ALEN);
3430		mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3431			ETH_ALEN;
3432		mef_entry->filter[filt_num].offset = 56;
3433		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3434		mef_entry->filter[filt_num].filt_action = TYPE_OR;
3435		mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
3436	}
3437	return ret;
3438}
3439
3440static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3441				  struct cfg80211_wowlan *wowlan)
3442{
3443	int ret = 0, num_entries = 1;
3444	struct mwifiex_ds_mef_cfg mef_cfg;
3445	struct mwifiex_mef_entry *mef_entry;
3446
3447	if (wowlan->n_patterns || wowlan->magic_pkt)
3448		num_entries++;
3449
3450	mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3451	if (!mef_entry)
3452		return -ENOMEM;
3453
3454	memset(&mef_cfg, 0, sizeof(mef_cfg));
3455	mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3456		MWIFIEX_CRITERIA_UNICAST;
3457	mef_cfg.num_entries = num_entries;
3458	mef_cfg.mef_entry = mef_entry;
3459
3460	mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3461
3462	if (wowlan->n_patterns || wowlan->magic_pkt) {
3463		ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3464						   &mef_entry[1], wowlan);
3465		if (ret)
3466			goto err;
3467	}
3468
3469	if (!mef_cfg.criteria)
3470		mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3471			MWIFIEX_CRITERIA_UNICAST |
3472			MWIFIEX_CRITERIA_MULTICAST;
3473
3474	ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3475			HostCmd_ACT_GEN_SET, 0,
3476			&mef_cfg, true);
3477
3478err:
3479	kfree(mef_entry);
3480	return ret;
3481}
3482
3483static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3484				    struct cfg80211_wowlan *wowlan)
3485{
3486	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3487	struct mwifiex_ds_hs_cfg hs_cfg;
3488	int i, ret = 0, retry_num = 10;
3489	struct mwifiex_private *priv;
3490	struct mwifiex_private *sta_priv =
3491			mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3492
3493	sta_priv->scan_aborting = true;
3494	for (i = 0; i < adapter->priv_num; i++) {
3495		priv = adapter->priv[i];
3496		mwifiex_abort_cac(priv);
3497	}
3498
3499	mwifiex_cancel_all_pending_cmd(adapter);
3500
3501	for (i = 0; i < adapter->priv_num; i++) {
3502		priv = adapter->priv[i];
3503		if (priv->netdev)
3504			netif_device_detach(priv->netdev);
3505	}
3506
3507	for (i = 0; i < retry_num; i++) {
3508		if (!mwifiex_wmm_lists_empty(adapter) ||
3509		    !mwifiex_bypass_txlist_empty(adapter) ||
3510		    !skb_queue_empty(&adapter->tx_data_q))
3511			usleep_range(10000, 15000);
3512		else
3513			break;
3514	}
3515
3516	if (!wowlan) {
3517		mwifiex_dbg(adapter, INFO,
3518			    "None of the WOWLAN triggers enabled\n");
3519		ret = 0;
3520		goto done;
3521	}
3522
3523	if (!sta_priv->media_connected && !wowlan->nd_config) {
3524		mwifiex_dbg(adapter, ERROR,
3525			    "Can not configure WOWLAN in disconnected state\n");
3526		ret = 0;
3527		goto done;
3528	}
3529
3530	ret = mwifiex_set_mef_filter(sta_priv, wowlan);
3531	if (ret) {
3532		mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3533		goto done;
3534	}
3535
3536	memset(&hs_cfg, 0, sizeof(hs_cfg));
3537	hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
3538
3539	if (wowlan->nd_config) {
3540		mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
3541		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3542		mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev,
3543						  wowlan->nd_config);
3544	}
3545
3546	if (wowlan->disconnect) {
3547		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
3548		mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n");
3549	}
3550
3551	hs_cfg.is_invoke_hostcmd = false;
3552	hs_cfg.gpio = adapter->hs_cfg.gpio;
3553	hs_cfg.gap = adapter->hs_cfg.gap;
3554	ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET,
3555				    MWIFIEX_SYNC_CMD, &hs_cfg);
3556	if (ret)
3557		mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n");
3558
3559done:
3560	sta_priv->scan_aborting = false;
3561	return ret;
3562}
3563
3564static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3565{
3566	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3567	struct mwifiex_private *priv;
3568	struct mwifiex_ds_wakeup_reason wakeup_reason;
3569	struct cfg80211_wowlan_wakeup wakeup_report;
3570	int i;
3571	bool report_wakeup_reason = true;
3572
3573	for (i = 0; i < adapter->priv_num; i++) {
3574		priv = adapter->priv[i];
3575		if (priv->netdev)
3576			netif_device_attach(priv->netdev);
3577	}
3578
3579	if (!wiphy->wowlan_config)
3580		goto done;
3581
3582	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3583	mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
3584				  &wakeup_reason);
3585	memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
3586
3587	wakeup_report.pattern_idx = -1;
3588
3589	switch (wakeup_reason.hs_wakeup_reason) {
3590	case NO_HSWAKEUP_REASON:
3591		break;
3592	case BCAST_DATA_MATCHED:
3593		break;
3594	case MCAST_DATA_MATCHED:
3595		break;
3596	case UCAST_DATA_MATCHED:
3597		break;
3598	case MASKTABLE_EVENT_MATCHED:
3599		break;
3600	case NON_MASKABLE_EVENT_MATCHED:
3601		if (wiphy->wowlan_config->disconnect)
3602			wakeup_report.disconnect = true;
3603		if (wiphy->wowlan_config->nd_config)
3604			wakeup_report.net_detect = adapter->nd_info;
3605		break;
3606	case NON_MASKABLE_CONDITION_MATCHED:
3607		break;
3608	case MAGIC_PATTERN_MATCHED:
3609		if (wiphy->wowlan_config->magic_pkt)
3610			wakeup_report.magic_pkt = true;
3611		if (wiphy->wowlan_config->n_patterns)
3612			wakeup_report.pattern_idx = 1;
3613		break;
3614	case GTK_REKEY_FAILURE:
3615		if (wiphy->wowlan_config->gtk_rekey_failure)
3616			wakeup_report.gtk_rekey_failure = true;
3617		break;
3618	default:
3619		report_wakeup_reason = false;
3620		break;
3621	}
3622
3623	if (report_wakeup_reason)
3624		cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
3625					      GFP_KERNEL);
3626
3627done:
3628	if (adapter->nd_info) {
3629		for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
3630			kfree(adapter->nd_info->matches[i]);
3631		kfree(adapter->nd_info);
3632		adapter->nd_info = NULL;
3633	}
3634
3635	return 0;
3636}
3637
3638static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3639				       bool enabled)
3640{
3641	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3642
3643	device_set_wakeup_enable(adapter->dev, enabled);
3644}
3645
3646static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev,
3647				  struct cfg80211_gtk_rekey_data *data)
3648{
3649	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3650
3651	if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
3652		return -EOPNOTSUPP;
3653
3654	if (priv->adapter->host_mlme_enabled)
3655		return 0;
3656
3657	return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
3658				HostCmd_ACT_GEN_SET, 0, data, true);
3659}
3660
3661#endif
3662
3663static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3664{
3665	static const u8 ipv4_mc_mac[] = {0x33, 0x33};
3666	static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3667	static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3668
3669	if ((byte_seq[0] & 0x01) &&
3670	    (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3671		return PACKET_TYPE_UNICAST;
3672	else if (!memcmp(byte_seq, bc_mac, 4))
3673		return PACKET_TYPE_BROADCAST;
3674	else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3675		  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3676		 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3677		  byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3678		return PACKET_TYPE_MULTICAST;
3679
3680	return 0;
3681}
3682
3683static int
3684mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3685				struct cfg80211_coalesce_rules *crule,
3686				struct mwifiex_coalesce_rule *mrule)
3687{
3688	u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3689	struct filt_field_param *param;
3690	int i;
3691
3692	mrule->max_coalescing_delay = crule->delay;
3693
3694	param = mrule->params;
3695
3696	for (i = 0; i < crule->n_patterns; i++) {
3697		memset(byte_seq, 0, sizeof(byte_seq));
3698		if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3699						  byte_seq,
3700						MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3701			mwifiex_dbg(priv->adapter, ERROR,
3702				    "Pattern not supported\n");
3703			return -EOPNOTSUPP;
3704		}
3705
3706		if (!crule->patterns[i].pkt_offset) {
3707			u8 pkt_type;
3708
3709			pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3710			if (pkt_type && mrule->pkt_type) {
3711				mwifiex_dbg(priv->adapter, ERROR,
3712					    "Multiple packet types not allowed\n");
3713				return -EOPNOTSUPP;
3714			} else if (pkt_type) {
3715				mrule->pkt_type = pkt_type;
3716				continue;
3717			}
3718		}
3719
3720		if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3721			param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3722		else
3723			param->operation = RECV_FILTER_MATCH_TYPE_NE;
3724
3725		param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3726		memcpy(param->operand_byte_stream, byte_seq,
3727		       param->operand_len);
3728		param->offset = crule->patterns[i].pkt_offset;
3729		param++;
3730
3731		mrule->num_of_fields++;
3732	}
3733
3734	if (!mrule->pkt_type) {
3735		mwifiex_dbg(priv->adapter, ERROR,
3736			    "Packet type can not be determined\n");
3737		return -EOPNOTSUPP;
3738	}
3739
3740	return 0;
3741}
3742
3743static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3744					 struct cfg80211_coalesce *coalesce)
3745{
3746	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3747	int i, ret;
3748	struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3749	struct mwifiex_private *priv =
3750			mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3751
3752	memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3753	if (!coalesce) {
3754		mwifiex_dbg(adapter, WARN,
3755			    "Disable coalesce and reset all previous rules\n");
3756		return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3757					HostCmd_ACT_GEN_SET, 0,
3758					&coalesce_cfg, true);
3759	}
3760
3761	coalesce_cfg.num_of_rules = coalesce->n_rules;
3762	for (i = 0; i < coalesce->n_rules; i++) {
3763		ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3764						      &coalesce_cfg.rule[i]);
3765		if (ret) {
3766			mwifiex_dbg(adapter, ERROR,
3767				    "Recheck the patterns provided for rule %d\n",
3768				i + 1);
3769			return ret;
3770		}
3771	}
3772
3773	return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3774				HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3775}
3776
3777/* cfg80211 ops handler for tdls_mgmt.
3778 * Function prepares TDLS action frame packets and forwards them to FW
3779 */
3780static int
3781mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3782			   const u8 *peer, int link_id, u8 action_code,
3783			   u8 dialog_token, u16 status_code,
3784			   u32 peer_capability, bool initiator,
3785			   const u8 *extra_ies, size_t extra_ies_len)
3786{
3787	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3788	int ret;
3789
3790	if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3791		return -EOPNOTSUPP;
3792
3793	/* make sure we are in station mode and connected */
3794	if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3795		return -EOPNOTSUPP;
3796
3797	switch (action_code) {
3798	case WLAN_TDLS_SETUP_REQUEST:
3799		mwifiex_dbg(priv->adapter, MSG,
3800			    "Send TDLS Setup Request to %pM status_code=%d\n",
3801			    peer, status_code);
3802		mwifiex_add_auto_tdls_peer(priv, peer);
3803		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3804						   dialog_token, status_code,
3805						   extra_ies, extra_ies_len);
3806		break;
3807	case WLAN_TDLS_SETUP_RESPONSE:
3808		mwifiex_add_auto_tdls_peer(priv, peer);
3809		mwifiex_dbg(priv->adapter, MSG,
3810			    "Send TDLS Setup Response to %pM status_code=%d\n",
3811			    peer, status_code);
3812		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3813						   dialog_token, status_code,
3814						   extra_ies, extra_ies_len);
3815		break;
3816	case WLAN_TDLS_SETUP_CONFIRM:
3817		mwifiex_dbg(priv->adapter, MSG,
3818			    "Send TDLS Confirm to %pM status_code=%d\n", peer,
3819			    status_code);
3820		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3821						   dialog_token, status_code,
3822						   extra_ies, extra_ies_len);
3823		break;
3824	case WLAN_TDLS_TEARDOWN:
3825		mwifiex_dbg(priv->adapter, MSG,
3826			    "Send TDLS Tear down to %pM\n", peer);
3827		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3828						   dialog_token, status_code,
3829						   extra_ies, extra_ies_len);
3830		break;
3831	case WLAN_TDLS_DISCOVERY_REQUEST:
3832		mwifiex_dbg(priv->adapter, MSG,
3833			    "Send TDLS Discovery Request to %pM\n", peer);
3834		ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3835						   dialog_token, status_code,
3836						   extra_ies, extra_ies_len);
3837		break;
3838	case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3839		mwifiex_dbg(priv->adapter, MSG,
3840			    "Send TDLS Discovery Response to %pM\n", peer);
3841		ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3842						   dialog_token, status_code,
3843						   extra_ies, extra_ies_len);
3844		break;
3845	default:
3846		mwifiex_dbg(priv->adapter, ERROR,
3847			    "Unknown TDLS mgmt/action frame %pM\n", peer);
3848		ret = -EINVAL;
3849		break;
3850	}
3851
3852	return ret;
3853}
3854
3855static int
3856mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3857			   const u8 *peer, enum nl80211_tdls_operation action)
3858{
3859	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3860
3861	if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3862	    !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3863		return -EOPNOTSUPP;
3864
3865	/* make sure we are in station mode and connected */
3866	if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3867		return -EOPNOTSUPP;
3868
3869	mwifiex_dbg(priv->adapter, MSG,
3870		    "TDLS peer=%pM, oper=%d\n", peer, action);
3871
3872	switch (action) {
3873	case NL80211_TDLS_ENABLE_LINK:
3874		action = MWIFIEX_TDLS_ENABLE_LINK;
3875		break;
3876	case NL80211_TDLS_DISABLE_LINK:
3877		action = MWIFIEX_TDLS_DISABLE_LINK;
3878		break;
3879	case NL80211_TDLS_TEARDOWN:
3880		/* shouldn't happen!*/
3881		mwifiex_dbg(priv->adapter, ERROR,
3882			    "tdls_oper: teardown from driver not supported\n");
3883		return -EINVAL;
3884	case NL80211_TDLS_SETUP:
3885		/* shouldn't happen!*/
3886		mwifiex_dbg(priv->adapter, ERROR,
3887			    "tdls_oper: setup from driver not supported\n");
3888		return -EINVAL;
3889	case NL80211_TDLS_DISCOVERY_REQ:
3890		/* shouldn't happen!*/
3891		mwifiex_dbg(priv->adapter, ERROR,
3892			    "tdls_oper: discovery from driver not supported\n");
3893		return -EINVAL;
3894	default:
3895		mwifiex_dbg(priv->adapter, ERROR,
3896			    "tdls_oper: operation not supported\n");
3897		return -EOPNOTSUPP;
3898	}
3899
3900	return mwifiex_tdls_oper(priv, peer, action);
3901}
3902
3903static int
3904mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3905				  const u8 *addr, u8 oper_class,
3906				  struct cfg80211_chan_def *chandef)
3907{
3908	struct mwifiex_sta_node *sta_ptr;
3909	u16 chan;
3910	u8 second_chan_offset, band;
3911	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3912
3913	spin_lock_bh(&priv->sta_list_spinlock);
3914	sta_ptr = mwifiex_get_sta_entry(priv, addr);
3915	if (!sta_ptr) {
3916		spin_unlock_bh(&priv->sta_list_spinlock);
3917		wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3918			  __func__, addr);
3919		return -ENOENT;
3920	}
3921
3922	if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3923	      WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3924		spin_unlock_bh(&priv->sta_list_spinlock);
3925		wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3926		return -ENOENT;
3927	}
3928
3929	if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3930	    sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3931		spin_unlock_bh(&priv->sta_list_spinlock);
3932		wiphy_err(wiphy, "channel switch is running, abort request\n");
3933		return -EALREADY;
3934	}
3935	spin_unlock_bh(&priv->sta_list_spinlock);
3936
3937	chan = chandef->chan->hw_value;
3938	second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3939	band = chandef->chan->band;
3940	mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3941
3942	return 0;
3943}
3944
3945static void
3946mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3947					 struct net_device *dev,
3948					 const u8 *addr)
3949{
3950	struct mwifiex_sta_node *sta_ptr;
3951	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3952
3953	spin_lock_bh(&priv->sta_list_spinlock);
3954	sta_ptr = mwifiex_get_sta_entry(priv, addr);
3955	if (!sta_ptr) {
3956		spin_unlock_bh(&priv->sta_list_spinlock);
3957		wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3958			  __func__, addr);
3959	} else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3960		     sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3961		     sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3962		spin_unlock_bh(&priv->sta_list_spinlock);
3963		wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3964			  addr);
3965	} else {
3966		spin_unlock_bh(&priv->sta_list_spinlock);
3967		mwifiex_stop_tdls_cs(priv, addr);
3968	}
3969}
3970
3971static int
3972mwifiex_cfg80211_uap_add_station(struct mwifiex_private *priv, const u8 *mac,
3973				 struct station_parameters *params)
3974{
3975	struct mwifiex_sta_info add_sta;
3976	int ret;
3977
3978	memcpy(add_sta.peer_mac, mac, ETH_ALEN);
3979	add_sta.params = params;
3980
3981	ret = mwifiex_send_cmd(priv, HostCmd_CMD_ADD_NEW_STATION,
3982			       HostCmd_ACT_ADD_STA, 0, (void *)&add_sta, true);
3983
3984	if (!ret) {
3985		struct station_info *sinfo;
3986
3987		sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
3988		if (!sinfo)
3989			return -ENOMEM;
3990
3991		cfg80211_new_sta(priv->netdev, mac, sinfo, GFP_KERNEL);
3992		kfree(sinfo);
3993	}
3994
3995	return ret;
3996}
3997
3998static int
3999mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
4000			     const u8 *mac, struct station_parameters *params)
4001{
4002	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4003
4004	if (priv->adapter->host_mlme_enabled &&
4005	    (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP))
4006		return mwifiex_cfg80211_uap_add_station(priv, mac, params);
4007
4008	if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4009		return -EOPNOTSUPP;
4010
4011	/* make sure we are in station mode and connected */
4012	if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4013		return -EOPNOTSUPP;
4014
4015	return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
4016}
4017
4018static int
4019mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4020				struct cfg80211_csa_settings *params)
4021{
4022	struct ieee_types_header *chsw_ie;
4023	struct ieee80211_channel_sw_ie *channel_sw;
4024	int chsw_msec;
4025	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4026
4027	if (priv->adapter->scan_processing) {
4028		mwifiex_dbg(priv->adapter, ERROR,
4029			    "radar detection: scan in process...\n");
4030		return -EBUSY;
4031	}
4032
4033	if (priv->wdev.links[0].cac_started)
4034		return -EBUSY;
4035
4036	if (cfg80211_chandef_identical(&params->chandef,
4037				       &priv->dfs_chandef))
4038		return -EINVAL;
4039
4040	chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
4041					   params->beacon_csa.tail,
4042					   params->beacon_csa.tail_len);
4043	if (!chsw_ie) {
4044		mwifiex_dbg(priv->adapter, ERROR,
4045			    "Could not parse channel switch announcement IE\n");
4046		return -EINVAL;
4047	}
4048
4049	channel_sw = (void *)(chsw_ie + 1);
4050	if (channel_sw->mode) {
4051		if (netif_carrier_ok(priv->netdev))
4052			netif_carrier_off(priv->netdev);
4053		mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
4054	}
4055
4056	if (mwifiex_del_mgmt_ies(priv))
4057		mwifiex_dbg(priv->adapter, ERROR,
4058			    "Failed to delete mgmt IEs!\n");
4059
4060	if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
4061		mwifiex_dbg(priv->adapter, ERROR,
4062			    "%s: setting mgmt ies failed\n", __func__);
4063		return -EFAULT;
4064	}
4065
4066	memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
4067	memcpy(&priv->beacon_after, &params->beacon_after,
4068	       sizeof(priv->beacon_after));
4069
4070	chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
4071	queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
4072			   msecs_to_jiffies(chsw_msec));
4073	return 0;
4074}
4075
4076static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
4077					struct wireless_dev *wdev,
4078					unsigned int link_id,
4079					struct cfg80211_chan_def *chandef)
4080{
4081	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4082	struct mwifiex_bssdescriptor *curr_bss;
4083	struct ieee80211_channel *chan;
4084	enum nl80211_channel_type chan_type;
4085	enum nl80211_band band;
4086	int freq;
4087	int ret = -ENODATA;
4088
4089	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
4090	    cfg80211_chandef_valid(&priv->bss_chandef)) {
4091		*chandef = priv->bss_chandef;
4092		ret = 0;
4093	} else if (priv->media_connected) {
4094		curr_bss = &priv->curr_bss_params.bss_descriptor;
4095		band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
4096		freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
4097		chan = ieee80211_get_channel(wiphy, freq);
4098
4099		if (priv->ht_param_present) {
4100			chan_type = mwifiex_get_chan_type(priv);
4101			cfg80211_chandef_create(chandef, chan, chan_type);
4102		} else {
4103			cfg80211_chandef_create(chandef, chan,
4104						NL80211_CHAN_NO_HT);
4105		}
4106		ret = 0;
4107	}
4108
4109	return ret;
4110}
4111
4112#ifdef CONFIG_NL80211_TESTMODE
4113
4114enum mwifiex_tm_attr {
4115	__MWIFIEX_TM_ATTR_INVALID	= 0,
4116	MWIFIEX_TM_ATTR_CMD		= 1,
4117	MWIFIEX_TM_ATTR_DATA		= 2,
4118
4119	/* keep last */
4120	__MWIFIEX_TM_ATTR_AFTER_LAST,
4121	MWIFIEX_TM_ATTR_MAX		= __MWIFIEX_TM_ATTR_AFTER_LAST - 1,
4122};
4123
4124static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = {
4125	[MWIFIEX_TM_ATTR_CMD]		= { .type = NLA_U32 },
4126	[MWIFIEX_TM_ATTR_DATA]		= { .type = NLA_BINARY,
4127					    .len = MWIFIEX_SIZE_OF_CMD_BUFFER },
4128};
4129
4130enum mwifiex_tm_command {
4131	MWIFIEX_TM_CMD_HOSTCMD	= 0,
4132};
4133
4134static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev,
4135			  void *data, int len)
4136{
4137	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
4138	struct mwifiex_ds_misc_cmd *hostcmd;
4139	struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1];
4140	struct sk_buff *skb;
4141	int err;
4142
4143	if (!priv)
4144		return -EINVAL;
4145
4146	err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len,
4147				   mwifiex_tm_policy, NULL);
4148	if (err)
4149		return err;
4150
4151	if (!tb[MWIFIEX_TM_ATTR_CMD])
4152		return -EINVAL;
4153
4154	switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) {
4155	case MWIFIEX_TM_CMD_HOSTCMD:
4156		if (!tb[MWIFIEX_TM_ATTR_DATA])
4157			return -EINVAL;
4158
4159		hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL);
4160		if (!hostcmd)
4161			return -ENOMEM;
4162
4163		hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]);
4164		memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]),
4165		       hostcmd->len);
4166
4167		if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
4168			dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
4169			kfree(hostcmd);
4170			return -EFAULT;
4171		}
4172
4173		/* process hostcmd response*/
4174		skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
4175		if (!skb) {
4176			kfree(hostcmd);
4177			return -ENOMEM;
4178		}
4179		err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
4180			      hostcmd->len, hostcmd->cmd);
4181		if (err) {
4182			kfree(hostcmd);
4183			kfree_skb(skb);
4184			return -EMSGSIZE;
4185		}
4186
4187		err = cfg80211_testmode_reply(skb);
4188		kfree(hostcmd);
4189		return err;
4190	default:
4191		return -EOPNOTSUPP;
4192	}
4193}
4194#endif
4195
4196static int
4197mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
4198				       struct net_device *dev,
4199				       struct cfg80211_chan_def *chandef,
4200				       u32 cac_time_ms, int link_id)
4201{
4202	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4203	struct mwifiex_radar_params radar_params;
4204
4205	if (priv->adapter->scan_processing) {
4206		mwifiex_dbg(priv->adapter, ERROR,
4207			    "radar detection: scan already in process...\n");
4208		return -EBUSY;
4209	}
4210
4211	if (!mwifiex_is_11h_active(priv)) {
4212		mwifiex_dbg(priv->adapter, INFO,
4213			    "Enable 11h extensions in FW\n");
4214		if (mwifiex_11h_activate(priv, true)) {
4215			mwifiex_dbg(priv->adapter, ERROR,
4216				    "Failed to activate 11h extensions!!");
4217			return -1;
4218		}
4219		priv->state_11h.is_11h_active = true;
4220	}
4221
4222	memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
4223	radar_params.chandef = chandef;
4224	radar_params.cac_time_ms = cac_time_ms;
4225
4226	memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
4227
4228	if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
4229			     HostCmd_ACT_GEN_SET, 0, &radar_params, true))
4230		return -1;
4231
4232	queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
4233			   msecs_to_jiffies(cac_time_ms));
4234	return 0;
4235}
4236
4237static int
4238mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
4239				const u8 *mac,
4240				struct station_parameters *params)
4241{
4242	int ret;
4243	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4244
4245	if (priv->adapter->host_mlme_enabled &&
4246	    (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP))
4247		return 0;
4248
4249	/* we support change_station handler only for TDLS peers*/
4250	if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4251		return -EOPNOTSUPP;
4252
4253	/* make sure we are in station mode and connected */
4254	if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
4255		return -EOPNOTSUPP;
4256
4257	priv->sta_params = params;
4258
4259	ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
4260	priv->sta_params = NULL;
4261
4262	return ret;
4263}
4264
4265static int
4266mwifiex_cfg80211_authenticate(struct wiphy *wiphy,
4267			      struct net_device *dev,
4268			      struct cfg80211_auth_request *req)
4269{
4270	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4271	struct mwifiex_adapter *adapter = priv->adapter;
4272	struct sk_buff *skb;
4273	u16 pkt_len, auth_alg;
4274	int ret;
4275	struct mwifiex_ieee80211_mgmt *mgmt;
4276	struct mwifiex_txinfo *tx_info;
4277	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
4278	u8 trans = 1, status_code = 0;
4279	u8 *varptr = NULL;
4280
4281	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
4282		mwifiex_dbg(priv->adapter, ERROR, "Interface role is AP\n");
4283		return -EFAULT;
4284	}
4285
4286	if (priv->wdev.iftype != NL80211_IFTYPE_STATION) {
4287		mwifiex_dbg(priv->adapter, ERROR,
4288			    "Interface type is not correct (type %d)\n",
4289			    priv->wdev.iftype);
4290		return -EINVAL;
4291	}
4292
4293	if (priv->auth_alg != WLAN_AUTH_SAE &&
4294	    (priv->auth_flag & HOST_MLME_AUTH_PENDING)) {
4295		mwifiex_dbg(priv->adapter, ERROR, "Pending auth on going\n");
4296		return -EBUSY;
4297	}
4298
4299	if (!priv->host_mlme_reg) {
4300		priv->host_mlme_reg = true;
4301		priv->mgmt_frame_mask |= HOST_MLME_MGMT_MASK;
4302		mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
4303				 HostCmd_ACT_GEN_SET, 0,
4304				 &priv->mgmt_frame_mask, false);
4305	}
4306
4307	switch (req->auth_type) {
4308	case NL80211_AUTHTYPE_OPEN_SYSTEM:
4309		auth_alg = WLAN_AUTH_OPEN;
4310		break;
4311	case NL80211_AUTHTYPE_SHARED_KEY:
4312		auth_alg = WLAN_AUTH_SHARED_KEY;
4313		break;
4314	case NL80211_AUTHTYPE_FT:
4315		auth_alg = WLAN_AUTH_FT;
4316		break;
4317	case NL80211_AUTHTYPE_NETWORK_EAP:
4318		auth_alg = WLAN_AUTH_LEAP;
4319		break;
4320	case NL80211_AUTHTYPE_SAE:
4321		auth_alg = WLAN_AUTH_SAE;
4322		break;
4323	default:
4324		mwifiex_dbg(priv->adapter, ERROR,
4325			    "unsupported auth type=%d\n", req->auth_type);
4326		return -EOPNOTSUPP;
4327	}
4328
4329	if (!priv->auth_flag) {
4330		ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET,
4331						 req->bss->channel,
4332						 AUTH_TX_DEFAULT_WAIT_TIME);
4333
4334		if (!ret) {
4335			priv->roc_cfg.cookie = get_random_u32() | 1;
4336			priv->roc_cfg.chan = *req->bss->channel;
4337		} else {
4338			return -EFAULT;
4339		}
4340	}
4341
4342	priv->sec_info.authentication_mode = auth_alg;
4343
4344	mwifiex_cancel_scan(adapter);
4345
4346	pkt_len = (u16)req->ie_len + req->auth_data_len +
4347		MWIFIEX_MGMT_HEADER_LEN + MWIFIEX_AUTH_BODY_LEN;
4348	if (req->auth_data_len >= 4)
4349		pkt_len -= 4;
4350
4351	skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
4352			    MWIFIEX_MGMT_FRAME_HEADER_SIZE +
4353			    pkt_len + sizeof(pkt_len));
4354	if (!skb) {
4355		mwifiex_dbg(priv->adapter, ERROR,
4356			    "allocate skb failed for management frame\n");
4357		return -ENOMEM;
4358	}
4359
4360	tx_info = MWIFIEX_SKB_TXCB(skb);
4361	memset(tx_info, 0, sizeof(*tx_info));
4362	tx_info->bss_num = priv->bss_num;
4363	tx_info->bss_type = priv->bss_type;
4364	tx_info->pkt_len = pkt_len;
4365
4366	skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
4367		    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
4368	memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
4369	memcpy(skb_push(skb, sizeof(tx_control)),
4370	       &tx_control, sizeof(tx_control));
4371	memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
4372
4373	mgmt = (struct mwifiex_ieee80211_mgmt *)skb_put(skb, pkt_len);
4374	memset(mgmt, 0, pkt_len);
4375	mgmt->frame_control =
4376		cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
4377	memcpy(mgmt->da, req->bss->bssid, ETH_ALEN);
4378	memcpy(mgmt->sa, priv->curr_addr, ETH_ALEN);
4379	memcpy(mgmt->bssid, req->bss->bssid, ETH_ALEN);
4380	eth_broadcast_addr(mgmt->addr4);
4381
4382	if (req->auth_data_len >= 4) {
4383		if (req->auth_type == NL80211_AUTHTYPE_SAE) {
4384			__le16 *pos = (__le16 *)req->auth_data;
4385
4386			trans = le16_to_cpu(pos[0]);
4387			status_code = le16_to_cpu(pos[1]);
4388		}
4389		memcpy((u8 *)(&mgmt->auth.variable), req->auth_data + 4,
4390		       req->auth_data_len - 4);
4391		varptr = (u8 *)&mgmt->auth.variable +
4392			 (req->auth_data_len - 4);
4393	}
4394
4395	mgmt->auth.auth_alg = cpu_to_le16(auth_alg);
4396	mgmt->auth.auth_transaction = cpu_to_le16(trans);
4397	mgmt->auth.status_code = cpu_to_le16(status_code);
4398
4399	if (req->ie && req->ie_len) {
4400		if (!varptr)
4401			varptr = (u8 *)&mgmt->auth.variable;
4402		memcpy((u8 *)varptr, req->ie, req->ie_len);
4403	}
4404
4405	priv->auth_flag = HOST_MLME_AUTH_PENDING;
4406	priv->auth_alg = auth_alg;
4407
4408	skb->priority = WMM_HIGHEST_PRIORITY;
4409	__net_timestamp(skb);
4410
4411	mwifiex_dbg(priv->adapter, MSG,
4412		    "auth: send authentication to %pM\n", req->bss->bssid);
4413
4414	mwifiex_queue_tx_pkt(priv, skb);
4415
4416	return 0;
4417}
4418
4419static int
4420mwifiex_cfg80211_associate(struct wiphy *wiphy, struct net_device *dev,
4421			   struct cfg80211_assoc_request *req)
4422{
4423	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
4424	struct mwifiex_adapter *adapter = priv->adapter;
4425	int ret;
4426	struct cfg80211_ssid req_ssid;
4427	const u8 *ssid_ie;
4428
4429	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
4430		mwifiex_dbg(adapter, ERROR,
4431			    "%s: reject infra assoc request in non-STA role\n",
4432			    dev->name);
4433		return -EINVAL;
4434	}
4435
4436	if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) ||
4437	    test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) {
4438		mwifiex_dbg(adapter, ERROR,
4439			    "%s: Ignore association.\t"
4440			    "Card removed or FW in bad state\n",
4441			    dev->name);
4442		return -EFAULT;
4443	}
4444
4445	if (priv->auth_alg == WLAN_AUTH_SAE)
4446		priv->auth_flag = HOST_MLME_AUTH_DONE;
4447
4448	if (priv->auth_flag && !(priv->auth_flag & HOST_MLME_AUTH_DONE))
4449		return -EBUSY;
4450
4451	if (priv->roc_cfg.cookie) {
4452		ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
4453						 &priv->roc_cfg.chan, 0);
4454		if (!ret)
4455			memset(&priv->roc_cfg, 0,
4456			       sizeof(struct mwifiex_roc_cfg));
4457		else
4458			return -EFAULT;
4459	}
4460
4461	if (!mwifiex_stop_bg_scan(priv))
4462		cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0);
4463
4464	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
4465	rcu_read_lock();
4466	ssid_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
4467
4468	if (!ssid_ie)
4469		goto ssid_err;
4470
4471	req_ssid.ssid_len = ssid_ie[1];
4472	if (req_ssid.ssid_len > IEEE80211_MAX_SSID_LEN) {
4473		mwifiex_dbg(adapter, ERROR, "invalid SSID - aborting\n");
4474		goto ssid_err;
4475	}
4476
4477	memcpy(req_ssid.ssid, ssid_ie + 2, req_ssid.ssid_len);
4478	if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
4479		mwifiex_dbg(adapter, ERROR, "invalid SSID - aborting\n");
4480		goto ssid_err;
4481	}
4482	rcu_read_unlock();
4483
4484	/* As this is new association, clear locally stored
4485	 * keys and security related flags
4486	 */
4487	priv->sec_info.wpa_enabled = false;
4488	priv->sec_info.wpa2_enabled = false;
4489	priv->wep_key_curr_index = 0;
4490	priv->sec_info.encryption_mode = 0;
4491	priv->sec_info.is_authtype_auto = 0;
4492	if (mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1)) {
4493		mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
4494		return -EFAULT;
4495	}
4496
4497	if (req->crypto.n_ciphers_pairwise)
4498		priv->sec_info.encryption_mode =
4499			req->crypto.ciphers_pairwise[0];
4500
4501	if (req->crypto.cipher_group)
4502		priv->sec_info.encryption_mode = req->crypto.cipher_group;
4503
4504	if (req->ie)
4505		mwifiex_set_gen_ie(priv, req->ie, req->ie_len);
4506
4507	memcpy(priv->cfg_bssid, req->bss->bssid, ETH_ALEN);
4508
4509	mwifiex_dbg(adapter, MSG,
4510		    "assoc: send association to %pM\n", req->bss->bssid);
4511
4512	cfg80211_ref_bss(adapter->wiphy, req->bss);
4513	ret = mwifiex_bss_start(priv, req->bss, &req_ssid);
4514	if (ret) {
4515		priv->auth_flag = 0;
4516		priv->auth_alg = WLAN_AUTH_NONE;
4517		eth_zero_addr(priv->cfg_bssid);
4518	}
4519
4520	if (priv->assoc_rsp_size) {
4521		priv->req_bss = req->bss;
4522		adapter->assoc_resp_received = true;
4523		queue_work(adapter->host_mlme_workqueue,
4524			   &adapter->host_mlme_work);
4525	}
4526
4527	cfg80211_put_bss(priv->adapter->wiphy, req->bss);
4528
4529	return 0;
4530
4531ssid_err:
4532	rcu_read_unlock();
4533	return -EFAULT;
4534}
4535
4536static int
4537mwifiex_cfg80211_deauthenticate(struct wiphy *wiphy,
4538				struct net_device *dev,
4539				struct cfg80211_deauth_request *req)
4540{
4541	return mwifiex_cfg80211_disconnect(wiphy, dev, req->reason_code);
4542}
4543
4544static int
4545mwifiex_cfg80211_disassociate(struct wiphy *wiphy,
4546			      struct net_device *dev,
4547			      struct cfg80211_disassoc_request *req)
4548{
4549	return mwifiex_cfg80211_disconnect(wiphy, dev, req->reason_code);
4550}
4551
4552static int
4553mwifiex_cfg80211_probe_client(struct wiphy *wiphy,
4554			      struct net_device *dev, const u8 *peer,
4555			      u64 *cookie)
4556{
4557	/* hostapd looks for NL80211_CMD_PROBE_CLIENT support; otherwise,
4558	 * it requires monitor-mode support (which mwifiex doesn't support).
4559	 * Provide fake probe_client support to work around this.
4560	 */
4561	return -EOPNOTSUPP;
4562}
4563
4564/* station cfg80211 operations */
4565static const struct cfg80211_ops mwifiex_cfg80211_ops = {
4566	.add_virtual_intf = mwifiex_add_virtual_intf,
4567	.del_virtual_intf = mwifiex_del_virtual_intf,
4568	.change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
4569	.scan = mwifiex_cfg80211_scan,
4570	.connect = mwifiex_cfg80211_connect,
4571	.disconnect = mwifiex_cfg80211_disconnect,
4572	.get_station = mwifiex_cfg80211_get_station,
4573	.dump_station = mwifiex_cfg80211_dump_station,
4574	.dump_survey = mwifiex_cfg80211_dump_survey,
4575	.set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
4576	.join_ibss = mwifiex_cfg80211_join_ibss,
4577	.leave_ibss = mwifiex_cfg80211_leave_ibss,
4578	.add_key = mwifiex_cfg80211_add_key,
4579	.del_key = mwifiex_cfg80211_del_key,
4580	.set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key,
4581	.mgmt_tx = mwifiex_cfg80211_mgmt_tx,
4582	.update_mgmt_frame_registrations =
4583		mwifiex_cfg80211_update_mgmt_frame_registrations,
4584	.remain_on_channel = mwifiex_cfg80211_remain_on_channel,
4585	.cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
4586	.set_default_key = mwifiex_cfg80211_set_default_key,
4587	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
4588	.set_tx_power = mwifiex_cfg80211_set_tx_power,
4589	.get_tx_power = mwifiex_cfg80211_get_tx_power,
4590	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
4591	.start_ap = mwifiex_cfg80211_start_ap,
4592	.stop_ap = mwifiex_cfg80211_stop_ap,
4593	.change_beacon = mwifiex_cfg80211_change_beacon,
4594	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
4595	.set_antenna = mwifiex_cfg80211_set_antenna,
4596	.get_antenna = mwifiex_cfg80211_get_antenna,
4597	.del_station = mwifiex_cfg80211_del_station,
4598	.sched_scan_start = mwifiex_cfg80211_sched_scan_start,
4599	.sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
4600#ifdef CONFIG_PM
4601	.suspend = mwifiex_cfg80211_suspend,
4602	.resume = mwifiex_cfg80211_resume,
4603	.set_wakeup = mwifiex_cfg80211_set_wakeup,
4604	.set_rekey_data = mwifiex_set_rekey_data,
4605#endif
4606	.set_coalesce = mwifiex_cfg80211_set_coalesce,
4607	.tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
4608	.tdls_oper = mwifiex_cfg80211_tdls_oper,
4609	.tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
4610	.tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
4611	.add_station = mwifiex_cfg80211_add_station,
4612	.change_station = mwifiex_cfg80211_change_station,
4613	CFG80211_TESTMODE_CMD(mwifiex_tm_cmd)
4614	.get_channel = mwifiex_cfg80211_get_channel,
4615	.start_radar_detection = mwifiex_cfg80211_start_radar_detection,
4616	.channel_switch = mwifiex_cfg80211_channel_switch,
4617};
4618
4619#ifdef CONFIG_PM
4620static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
4621	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4622		WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
4623		WIPHY_WOWLAN_GTK_REKEY_FAILURE,
4624	.n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4625	.pattern_min_len = 1,
4626	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4627	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4628	.max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4629};
4630
4631static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = {
4632	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
4633		 WIPHY_WOWLAN_NET_DETECT,
4634	.n_patterns = MWIFIEX_MEF_MAX_FILTERS,
4635	.pattern_min_len = 1,
4636	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4637	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4638	.max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
4639};
4640#endif
4641
4642static bool mwifiex_is_valid_alpha2(const char *alpha2)
4643{
4644	if (!alpha2 || strlen(alpha2) != 2)
4645		return false;
4646
4647	if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
4648		return true;
4649
4650	return false;
4651}
4652
4653static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
4654	.n_rules = MWIFIEX_COALESCE_MAX_RULES,
4655	.max_delay = MWIFIEX_MAX_COALESCING_DELAY,
4656	.n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
4657	.pattern_min_len = 1,
4658	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
4659	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
4660};
4661
4662int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
4663{
4664	u32 n_channels_bg, n_channels_a = 0;
4665
4666	n_channels_bg = mwifiex_band_2ghz.n_channels;
4667
4668	if (adapter->config_bands & BAND_A)
4669		n_channels_a = mwifiex_band_5ghz.n_channels;
4670
4671	/* allocate twice the number total channels, since the driver issues an
4672	 * additional active scan request for hidden SSIDs on passive channels.
4673	 */
4674	adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a);
4675	adapter->chan_stats = kcalloc(adapter->num_in_chan_stats,
4676				      sizeof(*adapter->chan_stats),
4677				      GFP_KERNEL);
4678
4679	if (!adapter->chan_stats)
4680		return -ENOMEM;
4681
4682	return 0;
4683}
4684
4685/*
4686 * This function registers the device with CFG802.11 subsystem.
4687 *
4688 * The function creates the wireless device/wiphy, populates it with
4689 * default parameters and handler function pointers, and finally
4690 * registers the device.
4691 */
4692
4693int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
4694{
4695	int ret;
4696	void *wdev_priv;
4697	struct wiphy *wiphy;
4698	struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
4699	const u8 *country_code;
4700	u32 thr, retry;
4701	struct cfg80211_ops *ops;
4702
4703	ops = devm_kmemdup(adapter->dev, &mwifiex_cfg80211_ops,
4704			   sizeof(mwifiex_cfg80211_ops), GFP_KERNEL);
4705	if (!ops)
4706		return -ENOMEM;
4707
4708	/* create a new wiphy for use with cfg80211 */
4709	wiphy = wiphy_new(ops, sizeof(struct mwifiex_adapter *));
4710	if (!wiphy) {
4711		mwifiex_dbg(adapter, ERROR,
4712			    "%s: creating new wiphy\n", __func__);
4713		return -ENOMEM;
4714	}
4715	if (adapter->host_mlme_enabled) {
4716		ops->auth = mwifiex_cfg80211_authenticate;
4717		ops->assoc = mwifiex_cfg80211_associate;
4718		ops->deauth = mwifiex_cfg80211_deauthenticate;
4719		ops->disassoc = mwifiex_cfg80211_disassociate;
4720		ops->disconnect = NULL;
4721		ops->connect = NULL;
4722		ops->probe_client = mwifiex_cfg80211_probe_client;
4723	}
4724	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4725	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4726	if (adapter->host_mlme_enabled) {
4727		memcpy(adapter->mwifiex_mgmt_stypes,
4728		       mwifiex_mgmt_stypes,
4729		       NUM_NL80211_IFTYPES *
4730		       sizeof(struct ieee80211_txrx_stypes));
4731
4732		adapter->mwifiex_mgmt_stypes[NL80211_IFTYPE_AP].tx = 0xffff;
4733		adapter->mwifiex_mgmt_stypes[NL80211_IFTYPE_AP].rx =
4734			BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
4735			BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
4736			BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
4737			BIT(IEEE80211_STYPE_DISASSOC >> 4) |
4738			BIT(IEEE80211_STYPE_AUTH >> 4) |
4739			BIT(IEEE80211_STYPE_DEAUTH >> 4) |
4740			BIT(IEEE80211_STYPE_ACTION >> 4);
4741		wiphy->mgmt_stypes = adapter->mwifiex_mgmt_stypes;
4742	} else {
4743		wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
4744	}
4745	wiphy->max_remain_on_channel_duration = 5000;
4746	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4747				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
4748				 BIT(NL80211_IFTYPE_P2P_GO) |
4749				 BIT(NL80211_IFTYPE_AP);
4750
4751	wiphy->max_num_akm_suites = CFG80211_MAX_NUM_AKM_SUITES;
4752
4753	if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4754		wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4755
4756	wiphy->bands[NL80211_BAND_2GHZ] = devm_kmemdup(adapter->dev,
4757						       &mwifiex_band_2ghz,
4758						       sizeof(mwifiex_band_2ghz),
4759						       GFP_KERNEL);
4760	if (!wiphy->bands[NL80211_BAND_2GHZ]) {
4761		ret = -ENOMEM;
4762		goto err;
4763	}
4764
4765	if (adapter->config_bands & BAND_A) {
4766		wiphy->bands[NL80211_BAND_5GHZ] = devm_kmemdup(adapter->dev,
4767							       &mwifiex_band_5ghz,
4768							       sizeof(mwifiex_band_5ghz),
4769							       GFP_KERNEL);
4770		if (!wiphy->bands[NL80211_BAND_5GHZ]) {
4771			ret = -ENOMEM;
4772			goto err;
4773		}
4774	} else {
4775		wiphy->bands[NL80211_BAND_5GHZ] = NULL;
4776	}
4777
4778	if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
4779		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
4780	else if (adapter->is_hw_11ac_capable)
4781		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
4782	else
4783		wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
4784	wiphy->n_iface_combinations = 1;
4785
4786	wiphy->max_ap_assoc_sta = max_t(typeof(wiphy->max_ap_assoc_sta),
4787					adapter->max_sta_conn,
4788					adapter->max_p2p_conn);
4789
4790	/* Initialize cipher suits */
4791	wiphy->cipher_suites = mwifiex_cipher_suites;
4792	wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
4793
4794	if (adapter->regd) {
4795		wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
4796					   REGULATORY_DISABLE_BEACON_HINTS |
4797					   REGULATORY_COUNTRY_IE_IGNORE;
4798		wiphy_apply_custom_regulatory(wiphy, adapter->regd);
4799	}
4800
4801	ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
4802	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4803	wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
4804			WIPHY_FLAG_AP_UAPSD |
4805			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4806			WIPHY_FLAG_HAS_CHANNEL_SWITCH |
4807			WIPHY_FLAG_NETNS_OK |
4808			WIPHY_FLAG_PS_ON_BY_DEFAULT;
4809
4810	if (adapter->host_mlme_enabled)
4811		wiphy->flags |= WIPHY_FLAG_REPORTS_OBSS;
4812	else
4813		wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME;
4814
4815	if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4816		wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4817				WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
4818
4819#ifdef CONFIG_PM
4820	if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
4821		wiphy->wowlan = &mwifiex_wowlan_support;
4822	else
4823		wiphy->wowlan = &mwifiex_wowlan_support_no_gtk;
4824#endif
4825
4826	wiphy->coalesce = &mwifiex_coalesce_support;
4827
4828	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
4829				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
4830				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
4831
4832	wiphy->max_sched_scan_reqs = 1;
4833	wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
4834	wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
4835	wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
4836
4837	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
4838	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
4839
4840	wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER |
4841			   NL80211_FEATURE_LOW_PRIORITY_SCAN |
4842			   NL80211_FEATURE_NEED_OBSS_SCAN;
4843
4844	if (adapter->host_mlme_enabled)
4845		wiphy->features |= NL80211_FEATURE_SAE;
4846
4847	if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info))
4848		wiphy->features |= NL80211_FEATURE_HT_IBSS;
4849
4850	if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
4851		wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
4852				   NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
4853				   NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
4854
4855	if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
4856		wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
4857
4858	if (adapter->fw_api_ver == MWIFIEX_FW_V15)
4859		wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
4860
4861	/* Reserve space for mwifiex specific private data for BSS */
4862	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
4863
4864	wiphy->reg_notifier = mwifiex_reg_notifier;
4865
4866	/* Set struct mwifiex_adapter pointer in wiphy_priv */
4867	wdev_priv = wiphy_priv(wiphy);
4868	*(unsigned long *)wdev_priv = (unsigned long)adapter;
4869
4870	set_wiphy_dev(wiphy, priv->adapter->dev);
4871
4872	ret = wiphy_register(wiphy);
4873	if (ret < 0) {
4874		mwifiex_dbg(adapter, ERROR,
4875			    "%s: wiphy_register failed: %d\n", __func__, ret);
4876		goto err;
4877	}
4878
4879	if (!adapter->regd) {
4880		if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
4881			mwifiex_dbg(adapter, INFO,
4882				    "driver hint alpha2: %2.2s\n", reg_alpha2);
4883			regulatory_hint(wiphy, reg_alpha2);
4884		} else {
4885			if (adapter->region_code == 0x00) {
4886				mwifiex_dbg(adapter, WARN,
4887					    "Ignore world regulatory domain\n");
4888			} else {
4889				wiphy->regulatory_flags |=
4890					REGULATORY_DISABLE_BEACON_HINTS |
4891					REGULATORY_COUNTRY_IE_IGNORE;
4892				country_code =
4893					mwifiex_11d_code_2_region(
4894						adapter->region_code);
4895				if (country_code &&
4896				    regulatory_hint(wiphy, country_code))
4897					mwifiex_dbg(priv->adapter, ERROR,
4898						    "regulatory_hint() failed\n");
4899			}
4900		}
4901	}
4902
4903	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4904			 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
4905	wiphy->frag_threshold = thr;
4906	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4907			 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
4908	wiphy->rts_threshold = thr;
4909	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4910			 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
4911	wiphy->retry_short = (u8) retry;
4912	mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
4913			 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
4914	wiphy->retry_long = (u8) retry;
4915
4916	adapter->wiphy = wiphy;
4917	return ret;
4918
4919err:
4920	wiphy_free(wiphy);
4921
4922	return ret;
4923}