cfg80211.c 70.2 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
/*
 * Marvell Wireless LAN device driver: CFG80211
 *
 * Copyright (C) 2011, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "cfg80211.h"
#include "main.h"

23 24
static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
	{
S
Stone Piao 已提交
25
		.max = 2, .types = BIT(NL80211_IFTYPE_STATION),
26 27 28 29 30 31 32 33 34 35 36 37 38 39
	},
	{
		.max = 1, .types = BIT(NL80211_IFTYPE_AP),
	},
};

static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
	.limits = mwifiex_ap_sta_limits,
	.num_different_channels = 1,
	.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
	.max_interfaces = MWIFIEX_MAX_BSS_NUM,
	.beacon_int_infra_match = true,
};

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
	.n_reg_rules = 7,
	.alpha2 =  "99",
	.reg_rules = {
		/* Channel 1 - 11 */
		REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
		/* Channel 12 - 13 */
		REG_RULE(2467-10, 2472+10, 20, 3, 20,
			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
		/* Channel 14 */
		REG_RULE(2484-10, 2484+10, 20, 3, 20,
			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
			 NL80211_RRF_NO_OFDM),
		/* Channel 36 - 48 */
		REG_RULE(5180-10, 5240+10, 40, 3, 20,
			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
		/* Channel 149 - 165 */
		REG_RULE(5745-10, 5825+10, 40, 3, 20,
			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
		/* Channel 52 - 64 */
		REG_RULE(5260-10, 5320+10, 40, 3, 30,
			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
			 NL80211_RRF_DFS),
		/* Channel 100 - 140 */
		REG_RULE(5500-10, 5700+10, 40, 3, 30,
			 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
			 NL80211_RRF_DFS),
	}
};

70 71 72 73
/*
 * This function maps the nl802.11 channel type into driver channel type.
 *
 * The mapping is as follows -
74 75 76 77 78
 *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
 *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
 *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
 *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
 *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
79
 */
80
u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
81
{
82
	switch (chan_type) {
83 84
	case NL80211_CHAN_NO_HT:
	case NL80211_CHAN_HT20:
85
		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
86
	case NL80211_CHAN_HT40PLUS:
87
		return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
88
	case NL80211_CHAN_HT40MINUS:
89
		return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
90
	default:
91
		return IEEE80211_HT_PARAM_CHA_SEC_NONE;
92 93 94 95 96 97 98 99 100 101
	}
}

/*
 * This function checks whether WEP is set.
 */
static int
mwifiex_is_alg_wep(u32 cipher)
{
	switch (cipher) {
102 103
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
104
		return 1;
105 106 107
	default:
		break;
	}
108 109

	return 0;
110 111 112 113 114
}

/*
 * This function retrieves the private structure from kernel wiphy structure.
 */
115
static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
116 117 118 119 120 121 122 123 124 125 126
{
	return (void *) (*(unsigned long *) wiphy_priv(wiphy));
}

/*
 * CFG802.11 operation handler to delete a network key.
 */
static int
mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
			 u8 key_index, bool pairwise, const u8 *mac_addr)
{
127
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
128 129
	const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
130

131
	if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
132 133 134 135 136 137 138 139
		wiphy_err(wiphy, "deleting the crypto keys\n");
		return -EFAULT;
	}

	wiphy_dbg(wiphy, "info: crypto keys deleted\n");
	return 0;
}

140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182
/*
 * This function forms an skb for management frame.
 */
static int
mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
{
	u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
	u16 pkt_len;
	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
	struct timeval tv;

	pkt_len = len + ETH_ALEN;

	skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
		    MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
	memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));

	memcpy(skb_push(skb, sizeof(tx_control)),
	       &tx_control, sizeof(tx_control));

	memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));

	/* Add packet data and address4 */
	memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
	       sizeof(struct ieee80211_hdr_3addr));
	memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
	memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
	       buf + sizeof(struct ieee80211_hdr_3addr),
	       len - sizeof(struct ieee80211_hdr_3addr));

	skb->priority = LOW_PRIO_TID;
	do_gettimeofday(&tv);
	skb->tstamp = timeval_to_ktime(tv);

	return 0;
}

/*
 * CFG802.11 operation handler to transmit a management frame.
 */
static int
mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
			 struct ieee80211_channel *chan, bool offchan,
183 184
			 unsigned int wait, const u8 *buf, size_t len,
			 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
{
	struct sk_buff *skb;
	u16 pkt_len;
	const struct ieee80211_mgmt *mgmt;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);

	if (!buf || !len) {
		wiphy_err(wiphy, "invalid buffer and length\n");
		return -EFAULT;
	}

	mgmt = (const struct ieee80211_mgmt *)buf;
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
	    ieee80211_is_probe_resp(mgmt->frame_control)) {
		/* Since we support offload probe resp, we need to skip probe
		 * resp in AP or GO mode */
		wiphy_dbg(wiphy,
			  "info: skip to send probe resp in AP or GO mode\n");
		return 0;
	}

	pkt_len = len + ETH_ALEN;
	skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
			    MWIFIEX_MGMT_FRAME_HEADER_SIZE +
			    pkt_len + sizeof(pkt_len));

	if (!skb) {
		wiphy_err(wiphy, "allocate skb failed for management frame\n");
		return -ENOMEM;
	}

	mwifiex_form_mgmt_frame(skb, buf, len);
	mwifiex_queue_tx_pkt(priv, skb);

	*cookie = random32() | 1;
	cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);

	wiphy_dbg(wiphy, "info: management frame transmitted\n");
	return 0;
}

226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246
/*
 * CFG802.11 operation handler to register a mgmt frame.
 */
static void
mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
				     struct wireless_dev *wdev,
				     u16 frame_type, bool reg)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);

	if (reg)
		priv->mgmt_frame_mask |= BIT(frame_type >> 4);
	else
		priv->mgmt_frame_mask &= ~BIT(frame_type >> 4);

	mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
			       HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask);

	wiphy_dbg(wiphy, "info: mgmt frame registered\n");
}

247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270
/*
 * CFG802.11 operation handler to remain on channel.
 */
static int
mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
				   struct wireless_dev *wdev,
				   struct ieee80211_channel *chan,
				   unsigned int duration, u64 *cookie)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
	int ret;

	if (!chan || !cookie) {
		wiphy_err(wiphy, "Invalid parameter for ROC\n");
		return -EINVAL;
	}

	if (priv->roc_cfg.cookie) {
		wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
			  priv->roc_cfg.cookie);
		return -EBUSY;
	}

	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
271
					 duration);
272 273 274 275 276 277

	if (!ret) {
		*cookie = random32() | 1;
		priv->roc_cfg.cookie = *cookie;
		priv->roc_cfg.chan = *chan;

278
		cfg80211_ready_on_channel(wdev, *cookie, chan,
279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300
					  duration, GFP_ATOMIC);

		wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
	}

	return ret;
}

/*
 * CFG802.11 operation handler to cancel remain on channel.
 */
static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
					  struct wireless_dev *wdev, u64 cookie)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
	int ret;

	if (cookie != priv->roc_cfg.cookie)
		return -ENOENT;

	ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
301
					 &priv->roc_cfg.chan, 0);
302 303 304 305 306 307 308 309 310 311 312 313 314 315

	if (!ret) {
		cfg80211_remain_on_channel_expired(wdev, cookie,
						   &priv->roc_cfg.chan,
						   GFP_ATOMIC);

		memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));

		wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
	}

	return ret;
}

316 317 318 319 320
/*
 * CFG802.11 operation handler to set Tx power.
 */
static int
mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
321
			      struct wireless_dev *wdev,
322
			      enum nl80211_tx_power_setting type,
323
			      int mbm)
324
{
325 326
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
327
	struct mwifiex_power_cfg power_cfg;
328
	int dbm = MBM_TO_DBM(mbm);
329

330 331 332 333 334 335 336
	if (type == NL80211_TX_POWER_FIXED) {
		power_cfg.is_power_auto = 0;
		power_cfg.power_level = dbm;
	} else {
		power_cfg.is_power_auto = 1;
	}

337 338
	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);

339
	return mwifiex_set_tx_power(priv, &power_cfg);
340 341 342 343 344 345 346 347 348 349 350 351
}

/*
 * CFG802.11 operation handler to set Power Save option.
 *
 * The timeout value, if provided, is currently ignored.
 */
static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
				struct net_device *dev,
				bool enabled, int timeout)
{
352
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
353
	u32 ps_mode;
354 355 356

	if (timeout)
		wiphy_dbg(wiphy,
357
			  "info: ignore timeout value for IEEE Power Save\n");
358

359
	ps_mode = enabled;
360

361
	return mwifiex_drv_set_power(priv, &ps_mode);
362 363 364 365 366 367 368 369 370 371
}

/*
 * CFG802.11 operation handler to set the default network key.
 */
static int
mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
				 u8 key_index, bool unicast,
				 bool multicast)
{
372
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
373

374
	/* Return if WEP key not configured */
375
	if (!priv->sec_info.wep_enabled)
376 377
		return 0;

378 379
	if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
		priv->wep_key_curr_index = key_index;
380 381
	} else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
				      NULL, 0)) {
382
		wiphy_err(wiphy, "set default Tx key index\n");
383
		return -EFAULT;
384
	}
385 386 387 388 389 390 391 392 393 394 395 396

	return 0;
}

/*
 * CFG802.11 operation handler to add a network key.
 */
static int
mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
			 u8 key_index, bool pairwise, const u8 *mac_addr,
			 struct key_params *params)
{
397
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
398
	struct mwifiex_wep_key *wep_key;
399 400
	const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
	const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
401

402 403 404 405 406 407 408 409 410 411 412 413 414 415 416
	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
	    (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
	     params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
		if (params->key && params->key_len) {
			wep_key = &priv->wep_key[key_index];
			memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
			memcpy(wep_key->key_material, params->key,
			       params->key_len);
			wep_key->key_index = key_index;
			wep_key->key_length = params->key_len;
			priv->sec_info.wep_enabled = 1;
		}
		return 0;
	}

417
	if (mwifiex_set_encode(priv, params, params->key, params->key_len,
418
			       key_index, peer_mac, 0)) {
419
		wiphy_err(wiphy, "crypto keys added\n");
420
		return -EFAULT;
421
	}
422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442

	return 0;
}

/*
 * This function sends domain information to the firmware.
 *
 * The following information are passed to the firmware -
 *      - Country codes
 *      - Sub bands (first channel, number of channels, maximum Tx power)
 */
static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
{
	u8 no_of_triplet = 0;
	struct ieee80211_country_ie_triplet *t;
	u8 no_of_parsed_chan = 0;
	u8 first_chan = 0, next_chan = 0, max_pwr = 0;
	u8 i, flag = 0;
	enum ieee80211_band band;
	struct ieee80211_supported_band *sband;
	struct ieee80211_channel *ch;
443 444
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
445 446 447
	struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;

	/* Set country code */
448 449
	domain_info->country_code[0] = adapter->country_code[0];
	domain_info->country_code[1] = adapter->country_code[1];
450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468
	domain_info->country_code[2] = ' ';

	band = mwifiex_band_to_radio_type(adapter->config_bands);
	if (!wiphy->bands[band]) {
		wiphy_err(wiphy, "11D: setting domain info in FW\n");
		return -1;
	}

	sband = wiphy->bands[band];

	for (i = 0; i < sband->n_channels ; i++) {
		ch = &sband->channels[i];
		if (ch->flags & IEEE80211_CHAN_DISABLED)
			continue;

		if (!flag) {
			flag = 1;
			first_chan = (u32) ch->hw_value;
			next_chan = first_chan;
469
			max_pwr = ch->max_power;
470 471 472 473 474
			no_of_parsed_chan = 1;
			continue;
		}

		if (ch->hw_value == next_chan + 1 &&
475
		    ch->max_power == max_pwr) {
476 477 478 479 480 481 482 483 484 485
			next_chan++;
			no_of_parsed_chan++;
		} else {
			t = &domain_info->triplet[no_of_triplet];
			t->chans.first_channel = first_chan;
			t->chans.num_channels = no_of_parsed_chan;
			t->chans.max_power = max_pwr;
			no_of_triplet++;
			first_chan = (u32) ch->hw_value;
			next_chan = first_chan;
486
			max_pwr = ch->max_power;
487 488 489 490 491 492 493 494 495 496 497 498 499
			no_of_parsed_chan = 1;
		}
	}

	if (flag) {
		t = &domain_info->triplet[no_of_triplet];
		t->chans.first_channel = first_chan;
		t->chans.num_channels = no_of_parsed_chan;
		t->chans.max_power = max_pwr;
		no_of_triplet++;
	}

	domain_info->no_of_triplet = no_of_triplet;
500

501 502
	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);

503
	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
504
				   HostCmd_ACT_GEN_SET, 0, NULL)) {
505
		wiphy_err(wiphy, "11D: setting domain info in FW\n");
506 507
		return -1;
	}
508

509
	return 0;
510 511 512 513 514 515 516 517 518 519 520 521
}

/*
 * CFG802.11 regulatory domain callback function.
 *
 * This function is called when the regulatory domain is changed due to the
 * following reasons -
 *      - Set by driver
 *      - Set by system core
 *      - Set by user
 *      - Set bt Country IE
 */
522 523
static void mwifiex_reg_notifier(struct wiphy *wiphy,
				 struct regulatory_request *request)
524
{
525
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
526

527 528
	wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
		  request->alpha2[0], request->alpha2[1]);
529

530
	memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547

	switch (request->initiator) {
	case NL80211_REGDOM_SET_BY_DRIVER:
	case NL80211_REGDOM_SET_BY_CORE:
	case NL80211_REGDOM_SET_BY_USER:
		break;
		/* Todo: apply driver specific changes in channel flags based
		   on the request initiator if necessary. */
	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
		break;
	}
	mwifiex_send_domain_info_cmd_fw(wiphy);
}

/*
 * This function sets the fragmentation threshold.
 *
548
 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
549 550 551 552 553
 * and MWIFIEX_FRAG_MAX_VALUE.
 */
static int
mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
{
554 555
	if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
	    frag_thr > MWIFIEX_FRAG_MAX_VALUE)
556
		frag_thr = MWIFIEX_FRAG_MAX_VALUE;
557

558 559 560
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
				     HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
				     &frag_thr);
561 562 563 564
}

/*
 * This function sets the RTS threshold.
565 566 567

 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 * and MWIFIEX_RTS_MAX_VALUE.
568 569 570 571 572 573 574
 */
static int
mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
{
	if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
		rts_thr = MWIFIEX_RTS_MAX_VALUE;

575
	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
576 577
				    HostCmd_ACT_GEN_SET, RTS_THRESH_I,
				    &rts_thr);
578 579 580 581 582 583 584 585 586 587 588
}

/*
 * CFG802.11 operation handler to set wiphy parameters.
 *
 * This function can be used to set the RTS threshold and the
 * Fragmentation threshold of the driver.
 */
static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
589
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627
	struct mwifiex_private *priv;
	struct mwifiex_uap_bss_param *bss_cfg;
	int ret, bss_started, i;

	for (i = 0; i < adapter->priv_num; i++) {
		priv = adapter->priv[i];

		switch (priv->bss_role) {
		case MWIFIEX_BSS_ROLE_UAP:
			bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
					  GFP_KERNEL);
			if (!bss_cfg)
				return -ENOMEM;

			mwifiex_set_sys_config_invalid_data(bss_cfg);

			if (changed & WIPHY_PARAM_RTS_THRESHOLD)
				bss_cfg->rts_threshold = wiphy->rts_threshold;
			if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
				bss_cfg->frag_threshold = wiphy->frag_threshold;
			if (changed & WIPHY_PARAM_RETRY_LONG)
				bss_cfg->retry_limit = wiphy->retry_long;

			bss_started = priv->bss_started;

			ret = mwifiex_send_cmd_sync(priv,
						    HostCmd_CMD_UAP_BSS_STOP,
						    HostCmd_ACT_GEN_SET, 0,
						    NULL);
			if (ret) {
				wiphy_err(wiphy, "Failed to stop the BSS\n");
				kfree(bss_cfg);
				return ret;
			}

			ret = mwifiex_send_cmd_async(priv,
						     HostCmd_CMD_UAP_SYS_CONFIG,
						     HostCmd_ACT_GEN_SET,
628
						     UAP_BSS_PARAMS_I, bss_cfg);
629

630 631 632 633 634 635
			kfree(bss_cfg);

			if (ret) {
				wiphy_err(wiphy, "Failed to set bss config\n");
				return ret;
			}
636

637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667
			if (!bss_started)
				break;

			ret = mwifiex_send_cmd_async(priv,
						     HostCmd_CMD_UAP_BSS_START,
						     HostCmd_ACT_GEN_SET, 0,
						     NULL);
			if (ret) {
				wiphy_err(wiphy, "Failed to start BSS\n");
				return ret;
			}

			break;
		case MWIFIEX_BSS_ROLE_STA:
			if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
				ret = mwifiex_set_rts(priv,
						      wiphy->rts_threshold);
				if (ret)
					return ret;
			}
			if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
				ret = mwifiex_set_frag(priv,
						       wiphy->frag_threshold);
				if (ret)
					return ret;
			}
			break;
		}
	}

	return 0;
668 669
}

670 671 672 673 674
static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
{
	u16 mode = P2P_MODE_DISABLE;

675 676 677
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
		mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);

678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
				  HostCmd_ACT_GEN_SET, 0, &mode))
		return -1;

	return 0;
}

/*
 * This function initializes the functionalities for P2P client.
 * The P2P client initialization sequence is:
 * disable -> device -> client
 */
static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
{
	u16 mode;

	if (mwifiex_cfg80211_deinit_p2p(priv))
		return -1;

	mode = P2P_MODE_DEVICE;
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
				  HostCmd_ACT_GEN_SET, 0, &mode))
		return -1;

	mode = P2P_MODE_CLIENT;
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
				  HostCmd_ACT_GEN_SET, 0, &mode))
		return -1;

	return 0;
}

711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739
/*
 * This function initializes the functionalities for P2P GO.
 * The P2P GO initialization sequence is:
 * disable -> device -> GO
 */
static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
{
	u16 mode;

	if (mwifiex_cfg80211_deinit_p2p(priv))
		return -1;

	mode = P2P_MODE_DEVICE;
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
				  HostCmd_ACT_GEN_SET, 0, &mode))
		return -1;

	mode = P2P_MODE_GO;
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
				  HostCmd_ACT_GEN_SET, 0, &mode))
		return -1;

	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
		mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);

	return 0;
}

740 741 742 743 744 745 746 747 748
/*
 * CFG802.11 operation handler to change interface type.
 */
static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
				     struct net_device *dev,
				     enum nl80211_iftype type, u32 *flags,
				     struct vif_params *params)
{
749
	int ret;
750 751
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

752
	switch (dev->ieee80211_ptr->iftype) {
753
	case NL80211_IFTYPE_ADHOC:
754 755 756 757 758 759 760 761 762 763 764 765 766
		switch (type) {
		case NL80211_IFTYPE_STATION:
			break;
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
		case NL80211_IFTYPE_ADHOC:	/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_AP:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
767 768
		break;
	case NL80211_IFTYPE_STATION:
769 770 771
		switch (type) {
		case NL80211_IFTYPE_ADHOC:
			break;
772 773 774 775 776
		case NL80211_IFTYPE_P2P_CLIENT:
			if (mwifiex_cfg80211_init_p2p_client(priv))
				return -EFAULT;
			dev->ieee80211_ptr->iftype = type;
			return 0;
777 778 779 780 781
		case NL80211_IFTYPE_P2P_GO:
			if (mwifiex_cfg80211_init_p2p_go(priv))
				return -EFAULT;
			dev->ieee80211_ptr->iftype = type;
			return 0;
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
		case NL80211_IFTYPE_STATION:	/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_AP:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
		break;
	case NL80211_IFTYPE_AP:
		switch (type) {
		case NL80211_IFTYPE_UNSPECIFIED:
			wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
		case NL80211_IFTYPE_AP:		/* This shouldn't happen */
			return 0;
		case NL80211_IFTYPE_ADHOC:
		case NL80211_IFTYPE_STATION:
		default:
			wiphy_err(wiphy, "%s: changing to %d not supported\n",
				  dev->name, type);
			return -EOPNOTSUPP;
		}
806
		break;
807
	case NL80211_IFTYPE_P2P_CLIENT:
808
	case NL80211_IFTYPE_P2P_GO:
809 810 811 812 813 814 815 816 817 818
		switch (type) {
		case NL80211_IFTYPE_STATION:
			if (mwifiex_cfg80211_deinit_p2p(priv))
				return -EFAULT;
			dev->ieee80211_ptr->iftype = type;
			return 0;
		default:
			return -EOPNOTSUPP;
		}
		break;
819
	default:
820 821 822
		wiphy_err(wiphy, "%s: unknown iftype: %d\n",
			  dev->name, dev->ieee80211_ptr->iftype);
		return -EOPNOTSUPP;
823 824
	}

825 826
	dev->ieee80211_ptr->iftype = type;
	priv->bss_mode = type;
827
	mwifiex_deauthenticate(priv, NULL);
828

829
	priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
830

831 832
	ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
				    HostCmd_ACT_GEN_SET, 0, NULL);
833

834 835 836
	return ret;
}

837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896
static void
mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
		     struct rate_info *rate)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	if (adapter->is_hw_11ac_capable) {
		/* bit[1-0]: 00=LG 01=HT 10=VHT */
		if (tx_htinfo & BIT(0)) {
			/* HT */
			rate->mcs = priv->tx_rate;
			rate->flags |= RATE_INFO_FLAGS_MCS;
		}
		if (tx_htinfo & BIT(1)) {
			/* VHT */
			rate->mcs = priv->tx_rate & 0x0F;
			rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
		}

		if (tx_htinfo & (BIT(1) | BIT(0))) {
			/* HT or VHT */
			switch (tx_htinfo & (BIT(3) | BIT(2))) {
			case 0:
				/* This will be 20MHz */
				break;
			case (BIT(2)):
				rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
				break;
			case (BIT(3)):
				rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
				break;
			case (BIT(3) | BIT(2)):
				rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
				break;
			}

			if (tx_htinfo & BIT(4))
				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;

			if ((priv->tx_rate >> 4) == 1)
				rate->nss = 2;
			else
				rate->nss = 1;
		}
	} else {
		/*
		 * Bit 0 in tx_htinfo indicates that current Tx rate
		 * is 11n rate. Valid MCS index values for us are 0 to 15.
		 */
		if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
			rate->mcs = priv->tx_rate;
			rate->flags |= RATE_INFO_FLAGS_MCS;
			if (tx_htinfo & BIT(1))
				rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
			if (tx_htinfo & BIT(2))
				rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
		}
	}
}

897 898 899 900 901 902 903 904 905 906 907 908 909 910 911
/*
 * This function dumps the station information on a buffer.
 *
 * The following information are shown -
 *      - Total bytes transmitted
 *      - Total bytes received
 *      - Total packets transmitted
 *      - Total packets received
 *      - Signal quality level
 *      - Transmission rate
 */
static int
mwifiex_dump_station_info(struct mwifiex_private *priv,
			  struct station_info *sinfo)
{
912
	u32 rate;
913 914

	sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
915 916 917
			STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
			STATION_INFO_TX_BITRATE |
			STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
918 919

	/* Get signal information from the firmware */
920 921 922 923
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
				  HostCmd_ACT_GEN_GET, 0, NULL)) {
		dev_err(priv->adapter->dev, "failed to get signal information\n");
		return -EFAULT;
924 925 926 927
	}

	if (mwifiex_drv_get_data_rate(priv, &rate)) {
		dev_err(priv->adapter->dev, "getting data rate\n");
928
		return -EFAULT;
929 930
	}

931 932 933 934 935
	/* Get DTIM period information from firmware */
	mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
			      HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
			      &priv->dtim_period);

936
	mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
937

938
	sinfo->signal_avg = priv->bcn_rssi_avg;
939 940 941 942
	sinfo->rx_bytes = priv->stats.rx_bytes;
	sinfo->tx_bytes = priv->stats.tx_bytes;
	sinfo->rx_packets = priv->stats.rx_packets;
	sinfo->tx_packets = priv->stats.tx_packets;
943
	sinfo->signal = priv->bcn_rssi_avg;
944
	/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
945
	sinfo->txrate.legacy = rate * 5;
946

947 948 949 950 951 952 953 954 955 956 957
	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
		sinfo->filled |= STATION_INFO_BSS_PARAM;
		sinfo->bss_param.flags = 0;
		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
						WLAN_CAPABILITY_SHORT_PREAMBLE)
			sinfo->bss_param.flags |=
					BSS_PARAM_FLAGS_SHORT_PREAMBLE;
		if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
						WLAN_CAPABILITY_SHORT_SLOT_TIME)
			sinfo->bss_param.flags |=
					BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
958
		sinfo->bss_param.dtim_period = priv->dtim_period;
959 960 961 962
		sinfo->bss_param.beacon_interval =
			priv->curr_bss_params.bss_descriptor.beacon_period;
	}

963
	return 0;
964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982
}

/*
 * CFG802.11 operation handler to get station information.
 *
 * This function only works in connected mode, and dumps the
 * requested station information, if available.
 */
static int
mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
			     u8 *mac, struct station_info *sinfo)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (!priv->media_connected)
		return -ENOENT;
	if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
		return -ENOENT;

983
	return mwifiex_dump_station_info(priv, sinfo);
984 985
}

986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002
/*
 * CFG802.11 operation handler to dump station information.
 */
static int
mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
			      int idx, u8 *mac, struct station_info *sinfo)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

	if (!priv->media_connected || idx)
		return -ENOENT;

	memcpy(mac, priv->cfg_bssid, ETH_ALEN);

	return mwifiex_dump_station_info(priv, sinfo);
}

1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040
/* Supported rates to be advertised to the cfg80211 */
static struct ieee80211_rate mwifiex_rates[] = {
	{.bitrate = 10, .hw_value = 2, },
	{.bitrate = 20, .hw_value = 4, },
	{.bitrate = 55, .hw_value = 11, },
	{.bitrate = 110, .hw_value = 22, },
	{.bitrate = 60, .hw_value = 12, },
	{.bitrate = 90, .hw_value = 18, },
	{.bitrate = 120, .hw_value = 24, },
	{.bitrate = 180, .hw_value = 36, },
	{.bitrate = 240, .hw_value = 48, },
	{.bitrate = 360, .hw_value = 72, },
	{.bitrate = 480, .hw_value = 96, },
	{.bitrate = 540, .hw_value = 108, },
};

/* Channel definitions to be advertised to cfg80211 */
static struct ieee80211_channel mwifiex_channels_2ghz[] = {
	{.center_freq = 2412, .hw_value = 1, },
	{.center_freq = 2417, .hw_value = 2, },
	{.center_freq = 2422, .hw_value = 3, },
	{.center_freq = 2427, .hw_value = 4, },
	{.center_freq = 2432, .hw_value = 5, },
	{.center_freq = 2437, .hw_value = 6, },
	{.center_freq = 2442, .hw_value = 7, },
	{.center_freq = 2447, .hw_value = 8, },
	{.center_freq = 2452, .hw_value = 9, },
	{.center_freq = 2457, .hw_value = 10, },
	{.center_freq = 2462, .hw_value = 11, },
	{.center_freq = 2467, .hw_value = 12, },
	{.center_freq = 2472, .hw_value = 13, },
	{.center_freq = 2484, .hw_value = 14, },
};

static struct ieee80211_supported_band mwifiex_band_2ghz = {
	.channels = mwifiex_channels_2ghz,
	.n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
	.bitrates = mwifiex_rates,
1041
	.n_bitrates = ARRAY_SIZE(mwifiex_rates),
1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080
};

static struct ieee80211_channel mwifiex_channels_5ghz[] = {
	{.center_freq = 5040, .hw_value = 8, },
	{.center_freq = 5060, .hw_value = 12, },
	{.center_freq = 5080, .hw_value = 16, },
	{.center_freq = 5170, .hw_value = 34, },
	{.center_freq = 5190, .hw_value = 38, },
	{.center_freq = 5210, .hw_value = 42, },
	{.center_freq = 5230, .hw_value = 46, },
	{.center_freq = 5180, .hw_value = 36, },
	{.center_freq = 5200, .hw_value = 40, },
	{.center_freq = 5220, .hw_value = 44, },
	{.center_freq = 5240, .hw_value = 48, },
	{.center_freq = 5260, .hw_value = 52, },
	{.center_freq = 5280, .hw_value = 56, },
	{.center_freq = 5300, .hw_value = 60, },
	{.center_freq = 5320, .hw_value = 64, },
	{.center_freq = 5500, .hw_value = 100, },
	{.center_freq = 5520, .hw_value = 104, },
	{.center_freq = 5540, .hw_value = 108, },
	{.center_freq = 5560, .hw_value = 112, },
	{.center_freq = 5580, .hw_value = 116, },
	{.center_freq = 5600, .hw_value = 120, },
	{.center_freq = 5620, .hw_value = 124, },
	{.center_freq = 5640, .hw_value = 128, },
	{.center_freq = 5660, .hw_value = 132, },
	{.center_freq = 5680, .hw_value = 136, },
	{.center_freq = 5700, .hw_value = 140, },
	{.center_freq = 5745, .hw_value = 149, },
	{.center_freq = 5765, .hw_value = 153, },
	{.center_freq = 5785, .hw_value = 157, },
	{.center_freq = 5805, .hw_value = 161, },
	{.center_freq = 5825, .hw_value = 165, },
};

static struct ieee80211_supported_band mwifiex_band_5ghz = {
	.channels = mwifiex_channels_5ghz,
	.n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1081 1082
	.bitrates = mwifiex_rates + 4,
	.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1083 1084 1085 1086 1087 1088 1089 1090 1091
};


/* Supported crypto cipher suits to be advertised to cfg80211 */
static const u32 mwifiex_cipher_suites[] = {
	WLAN_CIPHER_SUITE_WEP40,
	WLAN_CIPHER_SUITE_WEP104,
	WLAN_CIPHER_SUITE_TKIP,
	WLAN_CIPHER_SUITE_CCMP,
1092
	WLAN_CIPHER_SUITE_AES_CMAC,
1093 1094
};

1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123
/* Supported mgmt frame types to be advertised to cfg80211 */
static const struct ieee80211_txrx_stypes
mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
	[NL80211_IFTYPE_STATION] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
	[NL80211_IFTYPE_AP] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
	[NL80211_IFTYPE_P2P_CLIENT] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
	[NL80211_IFTYPE_P2P_GO] = {
		.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
	},
};

1124 1125 1126
/*
 * CFG802.11 operation handler for setting bit rates.
 *
1127 1128
 * Function configures data rates to firmware using bitrate mask
 * provided by cfg80211.
1129 1130 1131 1132 1133 1134 1135
 */
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
				struct net_device *dev,
				const u8 *peer,
				const struct cfg80211_bitrate_mask *mask)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1136 1137
	u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
	enum ieee80211_band band;
1138

1139 1140 1141 1142
	if (!priv->media_connected) {
		dev_err(priv->adapter->dev,
			"Can not set Tx data rate in disconnected state\n");
		return -EINVAL;
1143 1144
	}

1145
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1146

1147
	memset(bitmap_rates, 0, sizeof(bitmap_rates));
1148

1149 1150 1151
	/* Fill HR/DSSS rates. */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1152

1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165
	/* Fill OFDM rates */
	if (band == IEEE80211_BAND_2GHZ)
		bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
	else
		bitmap_rates[1] = mask->control[band].legacy;

	/* Fill MCS rates */
	bitmap_rates[2] = mask->control[band].mcs[0];
	if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
		bitmap_rates[2] |= mask->control[band].mcs[1] << 8;

	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
				     HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1166 1167
}

1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
/*
 * CFG802.11 operation handler for connection quality monitoring.
 *
 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
 * events to FW.
 */
static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
						struct net_device *dev,
						s32 rssi_thold, u32 rssi_hyst)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	struct mwifiex_ds_misc_subsc_evt subsc_evt;

	priv->cqm_rssi_thold = rssi_thold;
	priv->cqm_rssi_hyst = rssi_hyst;

	memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
	subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;

	/* Subscribe/unsubscribe low and high rssi events */
	if (rssi_thold && rssi_hyst) {
		subsc_evt.action = HostCmd_ACT_BITWISE_SET;
		subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
		subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
		subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
		subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
		return mwifiex_send_cmd_sync(priv,
					     HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					     0, 0, &subsc_evt);
	} else {
		subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
		return mwifiex_send_cmd_sync(priv,
					     HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
					     0, 0, &subsc_evt);
	}

	return 0;
}

1207 1208 1209 1210 1211 1212 1213 1214 1215
/* cfg80211 operation handler for change_beacon.
 * Function retrieves and sets modified management IEs to FW.
 */
static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
					  struct net_device *dev,
					  struct cfg80211_beacon_data *data)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

1216
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
		wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
		return -EINVAL;
	}

	if (!priv->bss_started) {
		wiphy_err(wiphy, "%s: bss not started\n", __func__);
		return -EINVAL;
	}

	if (mwifiex_set_mgmt_ies(priv, data)) {
		wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
		return -EFAULT;
	}

	return 0;
}

1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269
static int
mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv = mwifiex_get_priv(adapter,
							MWIFIEX_BSS_ROLE_ANY);
	struct mwifiex_ds_ant_cfg ant_cfg;

	if (!tx_ant || !rx_ant)
		return -EOPNOTSUPP;

	if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
		/* Not a MIMO chip. User should provide specific antenna number
		 * for Tx/Rx path or enable all antennas for diversity
		 */
		if (tx_ant != rx_ant)
			return -EOPNOTSUPP;

		if ((tx_ant & (tx_ant - 1)) &&
		    (tx_ant != BIT(adapter->number_of_antenna) - 1))
			return -EOPNOTSUPP;

		if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
		    (priv->adapter->number_of_antenna > 1)) {
			tx_ant = RF_ANTENNA_AUTO;
			rx_ant = RF_ANTENNA_AUTO;
		}
	}

	ant_cfg.tx_ant = tx_ant;
	ant_cfg.rx_ant = rx_ant;

	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
				     HostCmd_ACT_GEN_SET, 0, &ant_cfg);
}

1270 1271 1272 1273 1274 1275 1276
/* cfg80211 operation handler for stop ap.
 * Function stops BSS running at uAP interface.
 */
static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

A
Avinash Patil 已提交
1277 1278 1279
	if (mwifiex_del_mgmt_ies(priv))
		wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");

1280 1281
	priv->ap_11n_enabled = 0;

1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
				  HostCmd_ACT_GEN_SET, 0, NULL)) {
		wiphy_err(wiphy, "Failed to stop the BSS\n");
		return -1;
	}

	return 0;
}

/* cfg80211 operation handler for start_ap.
 * Function sets beacon period, DTIM period, SSID and security into
 * AP config structure.
 * AP is configured with these settings and BSS is started.
 */
static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
				     struct net_device *dev,
				     struct cfg80211_ap_settings *params)
{
	struct mwifiex_uap_bss_param *bss_cfg;
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1302
	u8 config_bands = 0;
1303

1304
	if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
A
Avinash Patil 已提交
1305
		return -1;
1306
	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1307
		return -1;
A
Avinash Patil 已提交
1308

1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324
	bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
	if (!bss_cfg)
		return -ENOMEM;

	mwifiex_set_sys_config_invalid_data(bss_cfg);

	if (params->beacon_interval)
		bss_cfg->beacon_period = params->beacon_interval;
	if (params->dtim_period)
		bss_cfg->dtim_period = params->dtim_period;

	if (params->ssid && params->ssid_len) {
		memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
		bss_cfg->ssid.ssid_len = params->ssid_len;
	}

1325 1326 1327 1328 1329 1330 1331 1332 1333 1334
	switch (params->hidden_ssid) {
	case NL80211_HIDDEN_SSID_NOT_IN_USE:
		bss_cfg->bcast_ssid_ctl = 1;
		break;
	case NL80211_HIDDEN_SSID_ZERO_LEN:
		bss_cfg->bcast_ssid_ctl = 0;
		break;
	case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
		/* firmware doesn't support this type of hidden SSID */
	default:
1335
		kfree(bss_cfg);
1336 1337 1338
		return -EINVAL;
	}

1339 1340
	bss_cfg->channel = ieee80211_frequency_to_channel(
				params->chandef.chan->center_freq);
1341

1342
	/* Set appropriate bands */
1343
	if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
A
Avinash Patil 已提交
1344
		bss_cfg->band_cfg = BAND_CONFIG_BG;
1345
		config_bands = BAND_B | BAND_G;
A
Avinash Patil 已提交
1346

1347 1348 1349 1350 1351
		if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
			config_bands |= BAND_GN;

		if (params->chandef.width > NL80211_CHAN_WIDTH_40)
			config_bands |= BAND_GAC;
1352
	} else {
A
Avinash Patil 已提交
1353
		bss_cfg->band_cfg = BAND_CONFIG_A;
1354
		config_bands = BAND_A;
A
Avinash Patil 已提交
1355

1356 1357 1358 1359 1360
		if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
			config_bands |= BAND_AN;

		if (params->chandef.width > NL80211_CHAN_WIDTH_40)
			config_bands |= BAND_AAC;
1361 1362
	}

1363 1364 1365 1366
	if (!((config_bands | priv->adapter->fw_bands) &
	      ~priv->adapter->fw_bands))
		priv->adapter->config_bands = config_bands;

A
Avinash Patil 已提交
1367
	mwifiex_set_uap_rates(bss_cfg, params);
1368 1369
	mwifiex_send_domain_info_cmd_fw(wiphy);

A
Avinash Patil 已提交
1370 1371 1372 1373 1374 1375
	if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
		kfree(bss_cfg);
		wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
		return -1;
	}

1376
	mwifiex_set_ht_params(priv, bss_cfg, params);
1377 1378 1379 1380 1381 1382 1383

	if (priv->adapter->is_hw_11ac_capable) {
		mwifiex_set_vht_params(priv, bss_cfg, params);
		mwifiex_set_vht_width(priv, params->chandef.width,
				      priv->ap_11ac_enabled);
	}

1384 1385 1386 1387 1388
	if (priv->ap_11ac_enabled)
		mwifiex_set_11ac_ba_params(priv);
	else
		mwifiex_set_ba_params(priv);

1389
	mwifiex_set_wmm_params(priv, bss_cfg, params);
1390

1391 1392 1393 1394 1395 1396
	if (params->inactivity_timeout > 0) {
		/* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
		bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
		bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
	}

1397 1398 1399 1400 1401 1402 1403 1404
	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
				  HostCmd_ACT_GEN_SET, 0, NULL)) {
		wiphy_err(wiphy, "Failed to stop the BSS\n");
		kfree(bss_cfg);
		return -1;
	}

	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1405 1406
				   HostCmd_ACT_GEN_SET,
				   UAP_BSS_PARAMS_I, bss_cfg)) {
1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419
		wiphy_err(wiphy, "Failed to set the SSID\n");
		kfree(bss_cfg);
		return -1;
	}

	kfree(bss_cfg);

	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
				   HostCmd_ACT_GEN_SET, 0, NULL)) {
		wiphy_err(wiphy, "Failed to start the BSS\n");
		return -1;
	}

1420 1421 1422 1423 1424 1425 1426 1427 1428 1429
	if (priv->sec_info.wep_enabled)
		priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
	else
		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;

	if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
				  HostCmd_ACT_GEN_SET, 0,
				  &priv->curr_pkt_filter))
		return -1;

1430 1431 1432
	return 0;
}

1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444
/*
 * CFG802.11 operation handler for disconnection request.
 *
 * This function does not work when there is already a disconnection
 * procedure going on.
 */
static int
mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
			    u16 reason_code)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);

1445
	if (mwifiex_deauthenticate(priv, NULL))
1446 1447 1448 1449 1450
		return -EFAULT;

	wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
		" reason code %d\n", priv->cfg_bssid, reason_code);

A
Amitkumar Karwar 已提交
1451
	memset(priv->cfg_bssid, 0, ETH_ALEN);
1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470

	return 0;
}

/*
 * This function informs the CFG802.11 subsystem of a new IBSS.
 *
 * The following information are sent to the CFG802.11 subsystem
 * to register the new IBSS. If we do not register the new IBSS,
 * a kernel panic will result.
 *      - SSID
 *      - SSID length
 *      - BSSID
 *      - Channel
 */
static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
{
	struct ieee80211_channel *chan;
	struct mwifiex_bss_info bss_info;
1471
	struct cfg80211_bss *bss;
1472
	int ie_len;
1473
	u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1474
	enum ieee80211_band band;
1475

1476 1477
	if (mwifiex_get_bss_info(priv, &bss_info))
		return -1;
1478 1479 1480 1481 1482

	ie_buf[0] = WLAN_EID_SSID;
	ie_buf[1] = bss_info.ssid.ssid_len;

	memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1483
	       &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1484 1485
	ie_len = ie_buf[1] + sizeof(struct ieee_types_header);

1486
	band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1487 1488
	chan = __ieee80211_get_channel(priv->wdev->wiphy,
			ieee80211_channel_to_frequency(bss_info.bss_chan,
1489
						       band));
1490

1491
	bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1492 1493
				  bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
				  0, ie_buf, ie_len, 0, GFP_KERNEL);
1494
	cfg80211_put_bss(priv->wdev->wiphy, bss);
1495 1496
	memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);

1497
	return 0;
1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511
}

/*
 * This function connects with a BSS.
 *
 * This function handles both Infra and Ad-Hoc modes. It also performs
 * validity checking on the provided parameters, disconnects from the
 * current BSS (if any), sets up the association/scan parameters,
 * including security settings, and performs specific SSID scan before
 * trying to connect.
 *
 * For Infra mode, the function returns failure if the specified SSID
 * is not found in scan table. However, for Ad-Hoc mode, it can create
 * the IBSS if it does not exist. On successful completion in either case,
1512
 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1513 1514 1515 1516 1517 1518
 */
static int
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
		       u8 *bssid, int mode, struct ieee80211_channel *channel,
		       struct cfg80211_connect_params *sme, bool privacy)
{
1519
	struct cfg80211_ssid req_ssid;
1520
	int ret, auth_type = 0;
1521
	struct cfg80211_bss *bss = NULL;
1522
	u8 is_scanning_required = 0;
1523

1524
	memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538

	req_ssid.ssid_len = ssid_len;
	if (ssid_len > IEEE80211_MAX_SSID_LEN) {
		dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
		return -EINVAL;
	}

	memcpy(req_ssid.ssid, ssid, ssid_len);
	if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
		dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
		return -EINVAL;
	}

	/* disconnect before try to associate */
1539
	mwifiex_deauthenticate(priv, NULL);
1540

1541 1542 1543 1544 1545
	/* As this is new association, clear locally stored
	 * keys and security related flags */
	priv->sec_info.wpa_enabled = false;
	priv->sec_info.wpa2_enabled = false;
	priv->wep_key_curr_index = 0;
1546
	priv->sec_info.encryption_mode = 0;
1547
	priv->sec_info.is_authtype_auto = 0;
1548
	ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1549

1550
	if (mode == NL80211_IFTYPE_ADHOC) {
1551 1552 1553
		/* "privacy" is set only for ad-hoc mode */
		if (privacy) {
			/*
1554
			 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1555 1556 1557 1558
			 * the firmware can find a matching network from the
			 * scan. The cfg80211 does not give us the encryption
			 * mode at this stage so just setting it to WEP here.
			 */
1559
			priv->sec_info.encryption_mode =
1560
					WLAN_CIPHER_SUITE_WEP104;
1561
			priv->sec_info.authentication_mode =
1562
					NL80211_AUTHTYPE_OPEN_SYSTEM;
1563 1564 1565 1566 1567 1568
		}

		goto done;
	}

	/* Now handle infra mode. "sme" is valid for infra mode only */
1569
	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1570
		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1571 1572 1573 1574
		priv->sec_info.is_authtype_auto = 1;
	} else {
		auth_type = sme->auth_type;
	}
1575 1576

	if (sme->crypto.n_ciphers_pairwise) {
1577 1578
		priv->sec_info.encryption_mode =
						sme->crypto.ciphers_pairwise[0];
1579
		priv->sec_info.authentication_mode = auth_type;
1580 1581 1582
	}

	if (sme->crypto.cipher_group) {
1583
		priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1584
		priv->sec_info.authentication_mode = auth_type;
1585 1586 1587 1588 1589
	}
	if (sme->ie)
		ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);

	if (sme->key) {
1590
		if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1591 1592 1593
			dev_dbg(priv->adapter->dev,
				"info: setting wep encryption"
				" with key len %d\n", sme->key_len);
1594
			priv->wep_key_curr_index = sme->key_idx;
1595 1596 1597
			ret = mwifiex_set_encode(priv, NULL, sme->key,
						 sme->key_len, sme->key_idx,
						 NULL, 0);
1598 1599 1600
		}
	}
done:
1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613
	/*
	 * Scan entries are valid for some time (15 sec). So we can save one
	 * active scan time if we just try cfg80211_get_bss first. If it fails
	 * then request scan and cfg80211_get_bss() again for final output.
	 */
	while (1) {
		if (is_scanning_required) {
			/* Do specific SSID scanning */
			if (mwifiex_request_scan(priv, &req_ssid)) {
				dev_err(priv->adapter->dev, "scan error\n");
				return -EFAULT;
			}
		}
1614

1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
		/* Find the BSS we want using available scan results */
		if (mode == NL80211_IFTYPE_ADHOC)
			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
					       bssid, ssid, ssid_len,
					       WLAN_CAPABILITY_IBSS,
					       WLAN_CAPABILITY_IBSS);
		else
			bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
					       bssid, ssid, ssid_len,
					       WLAN_CAPABILITY_ESS,
					       WLAN_CAPABILITY_ESS);

		if (!bss) {
			if (is_scanning_required) {
1629 1630
				dev_warn(priv->adapter->dev,
					 "assoc: requested bss not found in scan results\n");
1631 1632 1633 1634
				break;
			}
			is_scanning_required = 1;
		} else {
1635 1636 1637
			dev_dbg(priv->adapter->dev,
				"info: trying to associate to '%s' bssid %pM\n",
				(char *) req_ssid.ssid, bss->bssid);
1638 1639 1640
			memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
			break;
		}
1641 1642
	}

1643 1644 1645
	ret = mwifiex_bss_start(priv, bss, &req_ssid);
	if (ret)
		return ret;
1646

1647
	if (mode == NL80211_IFTYPE_ADHOC) {
1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670
		/* Inform the BSS information to kernel, otherwise
		 * kernel will give a panic after successful assoc */
		if (mwifiex_cfg80211_inform_ibss_bss(priv))
			return -EFAULT;
	}

	return ret;
}

/*
 * CFG802.11 operation handler for association request.
 *
 * This function does not work when the current mode is set to Ad-Hoc, or
 * when there is already an association procedure going on. The given BSS
 * information is used to associate.
 */
static int
mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
			 struct cfg80211_connect_params *sme)
{
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
	int ret = 0;

1671
	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1672 1673 1674 1675 1676
		wiphy_err(wiphy, "received infra assoc request "
				"when station is in ibss mode\n");
		goto done;
	}

1677 1678 1679 1680 1681
	if (priv->bss_mode == NL80211_IFTYPE_AP) {
		wiphy_err(wiphy, "skip association request for AP interface\n");
		goto done;
	}

1682
	wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1683
		  (char *) sme->ssid, sme->bssid);
1684 1685

	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1686
				     priv->bss_mode, sme->channel, sme, 0);
1687
done:
A
Amitkumar Karwar 已提交
1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699
	if (!ret) {
		cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
					NULL, 0, WLAN_STATUS_SUCCESS,
					GFP_KERNEL);
		dev_dbg(priv->adapter->dev,
			"info: associated to bssid %pM successfully\n",
			priv->cfg_bssid);
	} else {
		dev_dbg(priv->adapter->dev,
			"info: association to bssid %pM failed\n",
			priv->cfg_bssid);
		memset(priv->cfg_bssid, 0, ETH_ALEN);
1700 1701 1702 1703 1704 1705 1706 1707 1708 1709

		if (ret > 0)
			cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
						NULL, 0, NULL, 0, ret,
						GFP_KERNEL);
		else
			cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
						NULL, 0, NULL, 0,
						WLAN_STATUS_UNSPECIFIED_FAILURE,
						GFP_KERNEL);
A
Amitkumar Karwar 已提交
1710 1711
	}

1712
	return 0;
1713 1714
}

1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729
/*
 * This function sets following parameters for ibss network.
 *  -  channel
 *  -  start band
 *  -  11n flag
 *  -  secondary channel offset
 */
static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
				   struct cfg80211_ibss_params *params)
{
	struct wiphy *wiphy = priv->wdev->wiphy;
	struct mwifiex_adapter *adapter = priv->adapter;
	int index = 0, i;
	u8 config_bands = 0;

1730
	if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754
		if (!params->basic_rates) {
			config_bands = BAND_B | BAND_G;
		} else {
			for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
				/*
				 * Rates below 6 Mbps in the table are CCK
				 * rates; 802.11b and from 6 they are OFDM;
				 * 802.11G
				 */
				if (mwifiex_rates[i].bitrate == 60) {
					index = 1 << i;
					break;
				}
			}

			if (params->basic_rates < index) {
				config_bands = BAND_B;
			} else {
				config_bands = BAND_G;
				if (params->basic_rates % index)
					config_bands |= BAND_B;
			}
		}

1755 1756
		if (cfg80211_get_chandef_type(&params->chandef) !=
						NL80211_CHAN_NO_HT)
1757
			config_bands |= BAND_G | BAND_GN;
1758
	} else {
1759
		if (cfg80211_get_chandef_type(&params->chandef) ==
1760
						NL80211_CHAN_NO_HT)
1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776
			config_bands = BAND_A;
		else
			config_bands = BAND_AN | BAND_A;
	}

	if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
		adapter->config_bands = config_bands;
		adapter->adhoc_start_band = config_bands;

		if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
			adapter->adhoc_11n_enabled = true;
		else
			adapter->adhoc_11n_enabled = false;
	}

	adapter->sec_chan_offset =
1777 1778 1779 1780
		mwifiex_chan_type_to_sec_chan_offset(
			cfg80211_get_chandef_type(&params->chandef));
	priv->adhoc_channel = ieee80211_frequency_to_channel(
				params->chandef.chan->center_freq);
1781 1782 1783 1784 1785 1786 1787

	wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
		  config_bands, priv->adhoc_channel, adapter->sec_chan_offset);

	return 0;
}

1788 1789 1790 1791 1792 1793 1794 1795 1796 1797
/*
 * CFG802.11 operation handler to join an IBSS.
 *
 * This function does not work in any mode other than Ad-Hoc, or if
 * a join operation is already in progress.
 */
static int
mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
			   struct cfg80211_ibss_params *params)
{
1798
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1799 1800
	int ret = 0;

1801
	if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1802 1803 1804 1805 1806 1807
		wiphy_err(wiphy, "request to join ibss received "
				"when station is not in ibss mode\n");
		goto done;
	}

	wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1808
		  (char *) params->ssid, params->bssid);
1809

1810 1811
	mwifiex_set_ibss_params(priv, params);

1812
	ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1813
				     params->bssid, priv->bss_mode,
1814 1815
				     params->chandef.chan, NULL,
				     params->privacy);
1816
done:
A
Amitkumar Karwar 已提交
1817 1818 1819 1820 1821 1822 1823 1824 1825 1826
	if (!ret) {
		cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
		dev_dbg(priv->adapter->dev,
			"info: joined/created adhoc network with bssid"
			" %pM successfully\n", priv->cfg_bssid);
	} else {
		dev_dbg(priv->adapter->dev,
			"info: failed creating/joining adhoc network\n");
	}

1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838
	return ret;
}

/*
 * CFG802.11 operation handler to leave an IBSS.
 *
 * This function does not work if a leave operation is
 * already in progress.
 */
static int
mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
1839
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1840 1841

	wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1842
		  priv->cfg_bssid);
1843
	if (mwifiex_deauthenticate(priv, NULL))
1844 1845
		return -EFAULT;

A
Amitkumar Karwar 已提交
1846
	memset(priv->cfg_bssid, 0, ETH_ALEN);
1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858

	return 0;
}

/*
 * CFG802.11 operation handler for scan request.
 *
 * This function issues a scan request to the firmware based upon
 * the user specified scan configuration. On successfull completion,
 * it also informs the results.
 */
static int
J
Johannes Berg 已提交
1859
mwifiex_cfg80211_scan(struct wiphy *wiphy,
1860 1861
		      struct cfg80211_scan_request *request)
{
J
Johannes Berg 已提交
1862
	struct net_device *dev = request->wdev->netdev;
1863
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1864
	int i, offset, ret;
A
Amitkumar Karwar 已提交
1865
	struct ieee80211_channel *chan;
1866
	struct ieee_types_header *ie;
1867 1868 1869

	wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);

1870 1871
	if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
	    atomic_read(&priv->wmm.tx_pkts_queued) >=
1872 1873 1874 1875 1876
	    MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
		dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
		return -EBUSY;
	}

1877 1878 1879 1880 1881
	if (priv->user_scan_cfg) {
		dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
		return -EBUSY;
	}

A
Amitkumar Karwar 已提交
1882
	priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1883
				      GFP_KERNEL);
1884
	if (!priv->user_scan_cfg)
A
Amitkumar Karwar 已提交
1885
		return -ENOMEM;
1886

B
Bing Zhao 已提交
1887 1888
	priv->scan_request = request;

1889 1890 1891
	priv->user_scan_cfg->num_ssids = request->n_ssids;
	priv->user_scan_cfg->ssid_list = request->ssids;

A
Avinash Patil 已提交
1892
	if (request->ie && request->ie_len) {
1893
		offset = 0;
A
Avinash Patil 已提交
1894 1895 1896 1897
		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
			if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
				continue;
			priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1898 1899 1900 1901 1902 1903
			ie = (struct ieee_types_header *)(request->ie + offset);
			memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
			offset += sizeof(*ie) + ie->len;

			if (offset >= request->ie_len)
				break;
A
Avinash Patil 已提交
1904 1905 1906
		}
	}

1907 1908
	for (i = 0; i < min_t(u32, request->n_channels,
			      MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
A
Amitkumar Karwar 已提交
1909 1910 1911 1912 1913 1914
		chan = request->channels[i];
		priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
		priv->user_scan_cfg->chan_list[i].radio_type = chan->band;

		if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
			priv->user_scan_cfg->chan_list[i].scan_type =
1915
						MWIFIEX_SCAN_TYPE_PASSIVE;
A
Amitkumar Karwar 已提交
1916 1917
		else
			priv->user_scan_cfg->chan_list[i].scan_type =
1918
						MWIFIEX_SCAN_TYPE_ACTIVE;
A
Amitkumar Karwar 已提交
1919 1920 1921

		priv->user_scan_cfg->chan_list[i].scan_time = 0;
	}
1922 1923 1924 1925

	ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
	if (ret) {
		dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
B
Bing Zhao 已提交
1926 1927 1928
		priv->scan_request = NULL;
		kfree(priv->user_scan_cfg);
		priv->user_scan_cfg = NULL;
1929 1930
		return ret;
	}
A
Amitkumar Karwar 已提交
1931

A
Avinash Patil 已提交
1932 1933 1934 1935 1936 1937 1938 1939 1940
	if (request->ie && request->ie_len) {
		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
			if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
				priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
				memset(&priv->vs_ie[i].ie, 0,
				       MWIFIEX_MAX_VSIE_LEN);
			}
		}
	}
1941 1942 1943
	return 0;
}

1944 1945 1946 1947 1948 1949 1950
static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
				   struct mwifiex_private *priv)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	vht_info->vht_supported = true;

Y
Yogesh Ashok Powar 已提交
1951
	vht_info->cap = adapter->hw_dot_11ac_dev_cap;
1952 1953 1954 1955 1956 1957 1958 1959 1960
	/* Update MCS support for VHT */
	vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
				adapter->hw_dot_11ac_mcs_support & 0xFFFF);
	vht_info->vht_mcs.rx_highest = 0;
	vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
				adapter->hw_dot_11ac_mcs_support >> 16);
	vht_info->vht_mcs.tx_highest = 0;
}

1961 1962 1963 1964 1965 1966
/*
 * This function sets up the CFG802.11 specific HT capability fields
 * with default values.
 *
 * The following default values are set -
 *      - HT Supported = True
1967 1968 1969
 *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
 *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
 *      - HT Capabilities supported by firmware
1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982
 *      - MCS information, Rx mask = 0xff
 *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
 */
static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
		      struct mwifiex_private *priv)
{
	int rx_mcs_supp;
	struct ieee80211_mcs_info mcs_set;
	u8 *mcs = (u8 *)&mcs_set;
	struct mwifiex_adapter *adapter = priv->adapter;

	ht_info->ht_supported = true;
1983 1984
	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1985 1986 1987

	memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));

1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
	/* Fill HT capability information */
	if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;

	if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;

	if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;

	if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
	else
		ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);

	if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;

2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028
	if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;

	if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;

	if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
		ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
	else
		ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;

2029 2030 2031 2032
	ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
	ht_info->cap |= IEEE80211_HT_CAP_SM_PS;

	rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
2033 2034 2035 2036
	/* Set MCS for 1x1 */
	memset(mcs, 0xff, rx_mcs_supp);
	/* Clear all the other values */
	memset(&mcs[rx_mcs_supp], 0,
2037
	       sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2038
	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2039
	    ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2040 2041 2042 2043 2044 2045 2046 2047
		/* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
		SETHT_MCS32(mcs_set.rx_mask);

	memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));

	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
}

2048 2049 2050
/*
 *  create a new virtual interface with the given name
 */
2051
struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2052
					      const char *name,
2053 2054 2055
					      enum nl80211_iftype type,
					      u32 *flags,
					      struct vif_params *params)
2056
{
2057 2058
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_private *priv;
2059 2060
	struct net_device *dev;
	void *mdev_priv;
2061
	struct wireless_dev *wdev;
2062 2063

	if (!adapter)
2064
		return ERR_PTR(-EFAULT);
2065 2066 2067 2068 2069

	switch (type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
2070
		priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2071
		if (priv->bss_mode) {
2072 2073
			wiphy_err(wiphy,
				  "cannot create multiple sta/adhoc ifaces\n");
2074
			return ERR_PTR(-EINVAL);
2075 2076
		}

2077 2078
		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
2079
			return ERR_PTR(-ENOMEM);
2080 2081 2082 2083 2084

		wdev->wiphy = wiphy;
		priv->wdev = wdev;
		wdev->iftype = NL80211_IFTYPE_STATION;

2085 2086 2087 2088 2089 2090 2091
		if (type == NL80211_IFTYPE_UNSPECIFIED)
			priv->bss_mode = NL80211_IFTYPE_STATION;
		else
			priv->bss_mode = type;

		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2092
		priv->bss_priority = 0;
2093 2094 2095
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
		priv->bss_num = 0;

2096 2097 2098 2099 2100 2101
		break;
	case NL80211_IFTYPE_AP:
		priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];

		if (priv->bss_mode) {
			wiphy_err(wiphy, "Can't create multiple AP interfaces");
2102
			return ERR_PTR(-EINVAL);
2103 2104 2105 2106
		}

		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
2107
			return ERR_PTR(-ENOMEM);
2108 2109 2110 2111 2112 2113 2114

		priv->wdev = wdev;
		wdev->wiphy = wiphy;
		wdev->iftype = NL80211_IFTYPE_AP;

		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2115
		priv->bss_priority = 0;
2116 2117 2118 2119 2120
		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
		priv->bss_started = 0;
		priv->bss_num = 0;
		priv->bss_mode = type;

S
Stone Piao 已提交
2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
		priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];

		if (priv->bss_mode) {
			wiphy_err(wiphy, "Can't create multiple P2P ifaces");
			return ERR_PTR(-EINVAL);
		}

		wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
		if (!wdev)
			return ERR_PTR(-ENOMEM);

		priv->wdev = wdev;
		wdev->wiphy = wiphy;

		/* At start-up, wpa_supplicant tries to change the interface
		 * to NL80211_IFTYPE_STATION if it is not managed mode.
		 */
2140 2141
		wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
		priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
S
Stone Piao 已提交
2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154

		/* Setting bss_type to P2P tells firmware that this interface
		 * is receiving P2P peers found during find phase and doing
		 * action frame handshake.
		 */
		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;

		priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
		priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
		priv->bss_started = 0;
		priv->bss_num = 0;

2155 2156 2157
		break;
	default:
		wiphy_err(wiphy, "type not supported\n");
2158
		return ERR_PTR(-EINVAL);
2159 2160
	}

A
Avinash Patil 已提交
2161 2162
	dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
			       ether_setup, IEEE80211_NUM_ACS, 1);
2163 2164
	if (!dev) {
		wiphy_err(wiphy, "no memory available for netdevice\n");
2165 2166
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-ENOMEM);
2167 2168
	}

2169 2170 2171 2172
	mwifiex_init_priv_params(priv, dev);
	priv->netdev = dev;

	mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2173 2174 2175
	if (adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
			&wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2176 2177 2178 2179 2180

	if (adapter->config_bands & BAND_A)
		mwifiex_setup_ht_caps(
			&wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);

2181 2182 2183 2184
	if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
		mwifiex_setup_vht_caps(
			&wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);

2185 2186 2187 2188 2189 2190 2191 2192 2193
	dev_net_set(dev, wiphy_net(wiphy));
	dev->ieee80211_ptr = priv->wdev;
	dev->ieee80211_ptr->iftype = priv->bss_mode;
	memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
	SET_NETDEV_DEV(dev, wiphy_dev(wiphy));

	dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
	dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
	dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2194
	dev->ethtool_ops = &mwifiex_ethtool_ops;
2195 2196 2197 2198 2199 2200 2201 2202 2203

	mdev_priv = netdev_priv(dev);
	*((unsigned long *) mdev_priv) = (unsigned long) priv;

	SET_NETDEV_DEV(dev, adapter->dev);

	/* Register network device */
	if (register_netdevice(dev)) {
		wiphy_err(wiphy, "cannot register virtual network device\n");
2204 2205 2206
		free_netdev(dev);
		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
		return ERR_PTR(-EFAULT);
2207 2208 2209 2210 2211 2212 2213 2214 2215
	}

	sema_init(&priv->async_sem, 1);

	dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_init(priv);
#endif
2216
	return wdev;
2217 2218 2219 2220 2221 2222
}
EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);

/*
 * del_virtual_intf: remove the virtual interface determined by dev
 */
2223
int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2224
{
2225
	struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2226 2227 2228 2229 2230

#ifdef CONFIG_DEBUG_FS
	mwifiex_dev_debugfs_remove(priv);
#endif

A
Avinash Patil 已提交
2231
	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2232 2233 2234 2235

	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);

2236 2237
	if (wdev->netdev->reg_state == NETREG_REGISTERED)
		unregister_netdevice(wdev->netdev);
2238

2239 2240
	if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
		free_netdev(wdev->netdev);
2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252

	/* Clear the priv in adapter */
	priv->netdev = NULL;

	priv->media_connected = false;

	priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;

	return 0;
}
EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);

A
Amitkumar Karwar 已提交
2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308
#ifdef CONFIG_PM
static bool
mwifiex_is_pattern_supported(struct cfg80211_wowlan_trig_pkt_pattern *pat,
			     s8 *byte_seq)
{
	int j, k, valid_byte_cnt = 0;
	bool dont_care_byte = false;

	for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
		for (k = 0; k < 8; k++) {
			if (pat->mask[j] & 1 << k) {
				memcpy(byte_seq + valid_byte_cnt,
				       &pat->pattern[j * 8 + k], 1);
				valid_byte_cnt++;
				if (dont_care_byte)
					return false;
			} else {
				if (valid_byte_cnt)
					dont_care_byte = true;
			}

			if (valid_byte_cnt > MAX_BYTESEQ)
				return false;
		}
	}

	byte_seq[MAX_BYTESEQ] = valid_byte_cnt;

	return true;
}

static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
				    struct cfg80211_wowlan *wowlan)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
	struct mwifiex_ds_mef_cfg mef_cfg;
	struct mwifiex_mef_entry *mef_entry;
	int i, filt_num = 0, ret;
	bool first_pat = true;
	u8 byte_seq[MAX_BYTESEQ + 1];
	const u8 ipv4_mc_mac[] = {0x33, 0x33};
	const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
	struct mwifiex_private *priv =
			mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);

	if (!wowlan) {
		dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
		return 0;
	}

	if (!priv->media_connected) {
		dev_warn(adapter->dev,
			 "Can not configure WOWLAN in disconnected state\n");
		return 0;
	}

2309 2310 2311 2312
	mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
	if (!mef_entry)
		return -ENOMEM;

A
Amitkumar Karwar 已提交
2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398
	memset(&mef_cfg, 0, sizeof(mef_cfg));
	mef_cfg.num_entries = 1;
	mef_cfg.mef_entry = mef_entry;
	mef_entry->mode = MEF_MODE_HOST_SLEEP;
	mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;

	for (i = 0; i < wowlan->n_patterns; i++) {
		memset(byte_seq, 0, sizeof(byte_seq));
		if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
						  byte_seq)) {
			wiphy_err(wiphy, "Pattern not supported\n");
			kfree(mef_entry);
			return -EOPNOTSUPP;
		}

		if (!wowlan->patterns[i].pkt_offset) {
			if (!(byte_seq[0] & 0x01) &&
			    (byte_seq[MAX_BYTESEQ] == 1)) {
				mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
				continue;
			} else if (is_broadcast_ether_addr(byte_seq)) {
				mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
				continue;
			} else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
				    (byte_seq[MAX_BYTESEQ] == 2)) ||
				   (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
				    (byte_seq[MAX_BYTESEQ] == 3))) {
				mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
				continue;
			}
		}

		mef_entry->filter[filt_num].repeat = 1;
		mef_entry->filter[filt_num].offset =
						wowlan->patterns[i].pkt_offset;
		memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
		       sizeof(byte_seq));
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;

		if (first_pat)
			first_pat = false;
		else
			mef_entry->filter[filt_num].filt_action = TYPE_AND;

		filt_num++;
	}

	if (wowlan->magic_pkt) {
		mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
		mef_entry->filter[filt_num].repeat = 16;
		memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
		       ETH_ALEN);
		mef_entry->filter[filt_num].byte_seq[MAX_BYTESEQ] = ETH_ALEN;
		mef_entry->filter[filt_num].offset = 14;
		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
		if (filt_num)
			mef_entry->filter[filt_num].filt_action = TYPE_OR;
	}

	if (!mef_cfg.criteria)
		mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
				   MWIFIEX_CRITERIA_UNICAST |
				   MWIFIEX_CRITERIA_MULTICAST;

	ret =  mwifiex_send_cmd_sync(priv, HostCmd_CMD_MEF_CFG,
				     HostCmd_ACT_GEN_SET, 0,
				     &mef_cfg);

	kfree(mef_entry);
	return ret;
}

static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
{
	return 0;
}

static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
				       bool enabled)
{
	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);

	device_set_wakeup_enable(adapter->dev, enabled);
}
#endif

2399 2400
/* station cfg80211 operations */
static struct cfg80211_ops mwifiex_cfg80211_ops = {
2401 2402
	.add_virtual_intf = mwifiex_add_virtual_intf,
	.del_virtual_intf = mwifiex_del_virtual_intf,
2403 2404 2405 2406 2407
	.change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
	.scan = mwifiex_cfg80211_scan,
	.connect = mwifiex_cfg80211_connect,
	.disconnect = mwifiex_cfg80211_disconnect,
	.get_station = mwifiex_cfg80211_get_station,
2408
	.dump_station = mwifiex_cfg80211_dump_station,
2409 2410 2411 2412 2413
	.set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
	.join_ibss = mwifiex_cfg80211_join_ibss,
	.leave_ibss = mwifiex_cfg80211_leave_ibss,
	.add_key = mwifiex_cfg80211_add_key,
	.del_key = mwifiex_cfg80211_del_key,
2414
	.mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2415
	.mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2416 2417
	.remain_on_channel = mwifiex_cfg80211_remain_on_channel,
	.cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2418 2419 2420
	.set_default_key = mwifiex_cfg80211_set_default_key,
	.set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
	.set_tx_power = mwifiex_cfg80211_set_tx_power,
2421
	.set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2422 2423
	.start_ap = mwifiex_cfg80211_start_ap,
	.stop_ap = mwifiex_cfg80211_stop_ap,
2424
	.change_beacon = mwifiex_cfg80211_change_beacon,
2425
	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2426
	.set_antenna = mwifiex_cfg80211_set_antenna,
A
Amitkumar Karwar 已提交
2427 2428 2429 2430 2431
#ifdef CONFIG_PM
	.suspend = mwifiex_cfg80211_suspend,
	.resume = mwifiex_cfg80211_resume,
	.set_wakeup = mwifiex_cfg80211_set_wakeup,
#endif
2432 2433 2434 2435 2436 2437 2438 2439 2440
};

/*
 * This function registers the device with CFG802.11 subsystem.
 *
 * The function creates the wireless device/wiphy, populates it with
 * default parameters and handler function pointers, and finally
 * registers the device.
 */
2441 2442

int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2443
{
2444 2445
	int ret;
	void *wdev_priv;
2446 2447
	struct wiphy *wiphy;
	struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2448
	u8 *country_code;
2449

2450 2451 2452 2453 2454
	/* create a new wiphy for use with cfg80211 */
	wiphy = wiphy_new(&mwifiex_cfg80211_ops,
			  sizeof(struct mwifiex_adapter *));
	if (!wiphy) {
		dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2455 2456
		return -ENOMEM;
	}
2457 2458
	wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
	wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2459
	wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2460
	wiphy->max_remain_on_channel_duration = 5000;
2461 2462
	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
				 BIT(NL80211_IFTYPE_ADHOC) |
S
Stone Piao 已提交
2463 2464
				 BIT(NL80211_IFTYPE_P2P_CLIENT) |
				 BIT(NL80211_IFTYPE_P2P_GO) |
2465 2466 2467 2468 2469 2470 2471
				 BIT(NL80211_IFTYPE_AP);

	wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
	if (adapter->config_bands & BAND_A)
		wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
	else
		wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2472

2473 2474 2475
	wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
	wiphy->n_iface_combinations = 1;

2476
	/* Initialize cipher suits */
2477 2478
	wiphy->cipher_suites = mwifiex_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2479

2480 2481
	memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2482
	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2483
			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2484
			WIPHY_FLAG_AP_UAPSD |
2485 2486
			WIPHY_FLAG_CUSTOM_REGULATORY |
			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2487 2488

	wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2489

A
Amitkumar Karwar 已提交
2490 2491 2492 2493 2494 2495 2496 2497
#ifdef CONFIG_PM
	wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
	wiphy->wowlan.n_patterns = MWIFIEX_MAX_FILTERS;
	wiphy->wowlan.pattern_min_len = 1;
	wiphy->wowlan.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN;
	wiphy->wowlan.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN;
#endif

2498
	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2499 2500
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2501

2502 2503
	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2504

2505
	wiphy->features |= NL80211_FEATURE_HT_IBSS |
2506 2507
			   NL80211_FEATURE_INACTIVITY_TIMER |
			   NL80211_FEATURE_LOW_PRIORITY_SCAN;
2508

2509
	/* Reserve space for mwifiex specific private data for BSS */
2510
	wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2511

2512
	wiphy->reg_notifier = mwifiex_reg_notifier;
2513

2514
	/* Set struct mwifiex_adapter pointer in wiphy_priv */
2515
	wdev_priv = wiphy_priv(wiphy);
2516
	*(unsigned long *)wdev_priv = (unsigned long)adapter;
2517

2518
	set_wiphy_dev(wiphy, priv->adapter->dev);
2519

2520
	ret = wiphy_register(wiphy);
2521
	if (ret < 0) {
2522 2523 2524
		dev_err(adapter->dev,
			"%s: wiphy_register failed: %d\n", __func__, ret);
		wiphy_free(wiphy);
2525 2526
		return ret;
	}
2527
	country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2528 2529 2530
	if (country_code)
		dev_info(adapter->dev,
			 "ignoring F/W country code %2.2s\n", country_code);
2531

2532
	adapter->wiphy = wiphy;
2533 2534
	return ret;
}