Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next

John W. Linville says:

====================
This is a batch of updates intended for the 3.13 stream...

The biggest item of interest in here is wcn36xx, the new mac80211
driver for Qualcomm WCN3660/WCN3680 hardware.

Regarding the mac80211 bits, Johannes says:

"We have an assortment of cleanups and new features, of which the
biggest one is probably the channel-switch support in IBSS. Nothing
else really stands out much."

On top of that, the ath9k and rt2x00 get a lot of update action from
Felix Fietkau and Gabor Juhos, respectively. There are a handful of
updates to other drivers here and there as well.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <[e-mail]>

MAINTAINERS

···
 S:	Supported
 F:	arch/hexagon/
 
+QUALCOMM WCN36XX WIRELESS DRIVER
+M:	Eugene Krasnikov <[e-mail]>
+L:	[e-mail]
+W:	http://wireless.kernel.org/en/users/Drivers/wcn36xx
+T:	git git://github.com/KrasnikovEugene/wcn36xx.git
+S:	Supported
+F:	drivers/net/wireless/ath/wcn36xx/
+
 QUICKCAM PARALLEL PORT WEBCAMS
 M:	Hans Verkuil <[e-mail]>
 L:	[e-mail]

drivers/bcma/host_pci.c

···
 		pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
 
 	/* SSB needed additional powering up, do we have any AMBA PCI cards? */
-	if (!pci_is_pcie(dev))
-		bcma_err(bus, "PCI card detected, report problems.\n");
+	if (!pci_is_pcie(dev)) {
+		bcma_err(bus, "PCI card detected, they are not supported.\n");
+		err = -ENXIO;
+		goto err_pci_release_regions;
+	}
 
 	/* Map MMIO */
 	err = -ENOMEM;
···
 
 static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4313) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43224) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },

drivers/net/wireless/ath/Kconfig

···
 source "drivers/net/wireless/ath/ar5523/Kconfig"
 source "drivers/net/wireless/ath/wil6210/Kconfig"
 source "drivers/net/wireless/ath/ath10k/Kconfig"
+source "drivers/net/wireless/ath/wcn36xx/Kconfig"
 
 endif

drivers/net/wireless/ath/Makefile

···
 obj-$(CONFIG_AR5523)		+= ar5523/
 obj-$(CONFIG_WIL6210)		+= wil6210/
 obj-$(CONFIG_ATH10K)		+= ath10k/
+obj-$(CONFIG_WCN36XX)		+= wcn36xx/
 
 obj-$(CONFIG_ATH_COMMON)	+= ath.o
 

drivers/net/wireless/ath/ath9k/ani.c

···
 		    aniState->cckNoiseImmunityLevel !=
 		    ATH9K_ANI_CCK_DEF_LEVEL) {
 			ath_dbg(common, ANI,
-				"Restore defaults: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
+				"Restore defaults: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n",
 				ah->opmode,
 				chan->channel,
-				chan->channelFlags,
 				is_scanning,
 				aniState->ofdmNoiseImmunityLevel,
 				aniState->cckNoiseImmunityLevel);
···
 		 * restore historical levels for this channel
 		 */
 		ath_dbg(common, ANI,
-			"Restore history: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
+			"Restore history: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n",
 			ah->opmode,
 			chan->channel,
-			chan->channelFlags,
 			is_scanning,
 			aniState->ofdmNoiseImmunityLevel,
 			aniState->cckNoiseImmunityLevel);

drivers/net/wireless/ath/ath9k/ar5008_phy.c

···
 	if (IS_CHAN_HT40(chan)) {
 		phymode |= AR_PHY_FC_DYN2040_EN;
 
-		if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
-		    (chan->chanmode == CHANNEL_G_HT40PLUS))
+		if (IS_CHAN_HT40PLUS(chan))
 			phymode |= AR_PHY_FC_DYN2040_PRI_CH;
 
 	}
 	REG_WRITE(ah, AR_PHY_TURBO, phymode);
 
-	ath9k_hw_set11nmac2040(ah);
+	ath9k_hw_set11nmac2040(ah, chan);
 
 	ENABLE_REGWRITE_BUFFER(ah);
 
···
 	int i, regWrites = 0;
 	u32 modesIndex, freqIndex;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
+	if (IS_CHAN_5GHZ(chan)) {
 		freqIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		freqIndex = 1;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	} else {
 		freqIndex = 2;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		freqIndex = 2;
-		break;
-
-	default:
-		return -EINVAL;
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 	}
 
 	/*
···
 	if (chan == NULL)
 		return;
 
-	rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
-		? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
+	if (IS_CHAN_2GHZ(chan))
+		rfMode |= AR_PHY_MODE_DYNAMIC;
+	else
+		rfMode |= AR_PHY_MODE_OFDM;
 
 	if (!AR_SREV_9280_20_OR_LATER(ah))
 		rfMode |= (IS_CHAN_5GHZ(chan)) ?
···
 
 	iniDef = &aniState->iniDef;
 
-	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
+	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz\n",
 		ah->hw_version.macVersion,
 		ah->hw_version.macRev,
 		ah->opmode,
-		chan->channel,
-		chan->channelFlags);
+		chan->channel);
 
 	val = REG_READ(ah, AR_PHY_SFCORR);
 	iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);

drivers/net/wireless/ath/ath9k/ar9002_calib.c

···
 	bool supported = false;
 	switch (ah->supp_cals & cal_type) {
 	case IQ_MISMATCH_CAL:
-		/* Run IQ Mismatch for non-CCK only */
-		if (!IS_CHAN_B(chan))
-			supported = true;
+		supported = true;
 		break;
 	case ADC_GAIN_CAL:
 	case ADC_DC_CAL:
 		/* Run ADC Gain Cal for non-CCK & non 2GHz-HT20 only */
-		if (!IS_CHAN_B(chan) &&
-		    !((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
+		if (!((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
 		      IS_CHAN_HT20(chan)))
 			supported = true;
 		break;

drivers/net/wireless/ath/ath9k/ar9002_hw.c

···
 	u32 modesIndex;
 	int i;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		break;
-
-	default:
-		return;
-	}
+	if (IS_CHAN_5GHZ(chan))
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	else
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
 	ENABLE_REGWRITE_BUFFER(ah);
 

drivers/net/wireless/ath/ath9k/ar9003_phy.c

···
 	if (IS_CHAN_HT40(chan)) {
 		phymode |= AR_PHY_GC_DYN2040_EN;
 		/* Configure control (primary) channel at +-10MHz */
-		if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
-		    (chan->chanmode == CHANNEL_G_HT40PLUS))
+		if (IS_CHAN_HT40PLUS(chan))
 			phymode |= AR_PHY_GC_DYN2040_PRI_CH;
 
 	}
···
 	REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
 
 	/* Configure MAC for 20/40 operation */
-	ath9k_hw_set11nmac2040(ah);
+	ath9k_hw_set11nmac2040(ah, chan);
 
 	/* global transmit timeout (25 TUs default)*/
 	REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
···
 {
 	int ret;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		if (chan->channel <= 5350)
-			ret = 1;
-		else if ((chan->channel > 5350) && (chan->channel <= 5600))
-			ret = 3;
+	if (IS_CHAN_2GHZ(chan)) {
+		if (IS_CHAN_HT40(chan))
+			return 7;
 		else
-			ret = 5;
-		break;
-
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		if (chan->channel <= 5350)
-			ret = 2;
-		else if ((chan->channel > 5350) && (chan->channel <= 5600))
-			ret = 4;
-		else
-			ret = 6;
-		break;
-
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		ret = 8;
-		break;
-
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		ret = 7;
-		break;
-
-	default:
-		ret = -EINVAL;
+			return 8;
 	}
+
+	if (chan->channel <= 5350)
+		ret = 1;
+	else if ((chan->channel > 5350) && (chan->channel <= 5600))
+		ret = 3;
+	else
+		ret = 5;
+
+	if (IS_CHAN_HT40(chan))
+		ret++;
 
 	return ret;
 }
···
 	unsigned int regWrites = 0, i;
 	u32 modesIndex;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		break;
-
-	default:
-		return -EINVAL;
-	}
+	if (IS_CHAN_5GHZ(chan))
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	else
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
 	/*
 	 * SOC, MAC, BB, RADIO initvals.
···
 	if (chan == NULL)
 		return;
 
-	rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
-		? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
+	if (IS_CHAN_2GHZ(chan))
+		rfMode |= AR_PHY_MODE_DYNAMIC;
+	else
+		rfMode |= AR_PHY_MODE_OFDM;
 
 	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 		rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
···
 	aniState = &ah->ani;
 	iniDef = &aniState->iniDef;
 
-	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
+	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz\n",
 		ah->hw_version.macVersion,
 		ah->hw_version.macRev,
 		ah->opmode,
-		chan->channel,
-		chan->channelFlags);
+		chan->channel);
 
 	val = REG_READ(ah, AR_PHY_SFCORR);
 	iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
···
 	unsigned int regWrites = 0;
 	u32 modesIndex;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		break;
-
-	default:
-		return -EINVAL;
-	}
+	if (IS_CHAN_5GHZ(chan))
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	else
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
 	if (modesIndex == ah->modes_index) {
 		*ini_reloaded = false;

drivers/net/wireless/ath/ath9k/ath9k.h

···
 
 struct ath_config {
 	u16 txpowlimit;
-	u8 cabqReadytime;
 };
 
 /*************************/
···
 	u8 baw_tracked : 1;
 };
 
+struct ath_rxbuf {
+	struct list_head list;
+	struct sk_buff *bf_mpdu;
+	void *bf_desc;
+	dma_addr_t bf_daddr;
+	dma_addr_t bf_buf_addr;
+};
+
 struct ath_buf_state {
 	u8 bf_type;
 	u8 bfs_paprd;
···
 	struct ath_descdma rxdma;
 	struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
 
-	struct ath_buf *buf_hold;
+	struct ath_rxbuf *buf_hold;
 	struct sk_buff *frag;
 
 	u32 ampdu_ref;
···
 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
 
-bool ath9k_uses_beacons(int type);
 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
 			       enum spectral_mode spectral_mode);

drivers/net/wireless/ath/ath9k/calib.c

···
 bool ath9k_hw_reset_calvalid(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	struct ath9k_cal_list *currCal = ah->cal_list_curr;
 
 	if (!ah->caldata)
···
 		return true;
 
 	ath_dbg(common, CALIBRATE, "Resetting Cal %d state for channel %u\n",
-		currCal->calData->calType, conf->chandef.chan->center_freq);
+		currCal->calData->calType, ah->curchan->chan->center_freq);
 
 	ah->caldata->CalValid &= ~currCal->calData->calType;
 	currCal->calState = CAL_WAITING;
···
 	int32_t val;
 	u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	s16 default_nf = ath9k_hw_get_default_nf(ah, chan);
 
 	if (ah->caldata)
···
 		if (chainmask & (1 << i)) {
 			s16 nfval;
 
-			if ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))
+			if ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(chan))
 				continue;
 
 			if (h)
···
 	ENABLE_REGWRITE_BUFFER(ah);
 	for (i = 0; i < NUM_NF_READINGS; i++) {
 		if (chainmask & (1 << i)) {
-			if ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))
+			if ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(chan))
 				continue;
 
 			val = REG_READ(ah, ah->nf_regs[i]);
···
 
 	ah->caldata->channel = chan->channel;
 	ah->caldata->channelFlags = chan->channelFlags;
-	ah->caldata->chanmode = chan->chanmode;
 	h = ah->caldata->nfCalHist;
 	default_nf = ath9k_hw_get_default_nf(ah, chan);
 	for (i = 0; i < NUM_NF_READINGS; i++) {

drivers/net/wireless/ath/ath9k/common.c

···
 }
 EXPORT_SYMBOL(ath9k_cmn_get_hw_crypto_keytype);
 
-static u32 ath9k_get_extchanmode(struct cfg80211_chan_def *chandef)
-{
-	u32 chanmode = 0;
-
-	switch (chandef->chan->band) {
-	case IEEE80211_BAND_2GHZ:
-		switch (chandef->width) {
-		case NL80211_CHAN_WIDTH_20_NOHT:
-		case NL80211_CHAN_WIDTH_20:
-			chanmode = CHANNEL_G_HT20;
-			break;
-		case NL80211_CHAN_WIDTH_40:
-			if (chandef->center_freq1 > chandef->chan->center_freq)
-				chanmode = CHANNEL_G_HT40PLUS;
-			else
-				chanmode = CHANNEL_G_HT40MINUS;
-			break;
-		default:
-			break;
-		}
-		break;
-	case IEEE80211_BAND_5GHZ:
-		switch (chandef->width) {
-		case NL80211_CHAN_WIDTH_20_NOHT:
-		case NL80211_CHAN_WIDTH_20:
-			chanmode = CHANNEL_A_HT20;
-			break;
-		case NL80211_CHAN_WIDTH_40:
-			if (chandef->center_freq1 > chandef->chan->center_freq)
-				chanmode = CHANNEL_A_HT40PLUS;
-			else
-				chanmode = CHANNEL_A_HT40MINUS;
-			break;
-		default:
-			break;
-		}
-		break;
-	default:
-		break;
-	}
-
-	return chanmode;
-}
-
 /*
  * Update internal channel flags.
  */
-void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
-			       struct cfg80211_chan_def *chandef)
+static void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
+				      struct cfg80211_chan_def *chandef)
 {
-	ichan->channel = chandef->chan->center_freq;
-	ichan->chan = chandef->chan;
+	struct ieee80211_channel *chan = chandef->chan;
+	u16 flags = 0;
 
-	if (chandef->chan->band == IEEE80211_BAND_2GHZ) {
-		ichan->chanmode = CHANNEL_G;
-		ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM;
-	} else {
-		ichan->chanmode = CHANNEL_A;
-		ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
-	}
+	ichan->channel = chan->center_freq;
+	ichan->chan = chan;
+
+	if (chan->band == IEEE80211_BAND_5GHZ)
+		flags |= CHANNEL_5GHZ;
 
 	switch (chandef->width) {
 	case NL80211_CHAN_WIDTH_5:
-		ichan->channelFlags |= CHANNEL_QUARTER;
+		flags |= CHANNEL_QUARTER;
 		break;
 	case NL80211_CHAN_WIDTH_10:
-		ichan->channelFlags |= CHANNEL_HALF;
+		flags |= CHANNEL_HALF;
 		break;
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		break;
 	case NL80211_CHAN_WIDTH_20:
+		flags |= CHANNEL_HT;
+		break;
 	case NL80211_CHAN_WIDTH_40:
-		ichan->chanmode = ath9k_get_extchanmode(chandef);
+		if (chandef->center_freq1 > chandef->chan->center_freq)
+			flags |= CHANNEL_HT40PLUS | CHANNEL_HT;
+		else
+			flags |= CHANNEL_HT40MINUS | CHANNEL_HT;
 		break;
 	default:
 		WARN_ON(1);
 	}
+
+	ichan->channelFlags = flags;
 }
-EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
 
 /*
  * Get the internal channel reference.
  */
-struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
-					       struct ath_hw *ah)
+struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
+					    struct ath_hw *ah,
+					    struct cfg80211_chan_def *chandef)
 {
-	struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+	struct ieee80211_channel *curchan = chandef->chan;
 	struct ath9k_channel *channel;
 	u8 chan_idx;
 
 	chan_idx = curchan->hw_value;
 	channel = &ah->channels[chan_idx];
-	ath9k_cmn_update_ichannel(channel, &hw->conf.chandef);
+	ath9k_cmn_update_ichannel(channel, chandef);
 
 	return channel;
 }
-EXPORT_SYMBOL(ath9k_cmn_get_curchannel);
+EXPORT_SYMBOL(ath9k_cmn_get_channel);
 
 int ath9k_cmn_count_streams(unsigned int chainmask, int max)
 {

drivers/net/wireless/ath/ath9k/common.h

···
 	(((x) + ((mul)/2)) / (mul))
 
 int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
-void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
-			       struct cfg80211_chan_def *chandef);
-struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
-					       struct ath_hw *ah);
+struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
+					    struct ath_hw *ah,
+					    struct cfg80211_chan_def *chandef);
 int ath9k_cmn_count_streams(unsigned int chainmask, int max);
 void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
 				  enum ath_stomp_type stomp_type);

drivers/net/wireless/ath/ath9k/htc_drv_main.c

···
 static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
 					      struct ath9k_channel *ichan)
 {
-	enum htc_phymode mode;
+	if (IS_CHAN_5GHZ(ichan))
+		return HTC_MODE_11NA;
 
-	mode = -EINVAL;
-
-	switch (ichan->chanmode) {
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		mode = HTC_MODE_11NG;
-		break;
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		mode = HTC_MODE_11NA;
-		break;
-	default:
-		break;
-	}
-
-	WARN_ON(mode < 0);
-
-	return mode;
+	return HTC_MODE_11NG;
 }
 
 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
···
 	WMI_CMD(WMI_FLUSH_RECV_CMDID);
 
 	/* setup initial channel */
-	init_channel = ath9k_cmn_get_curchannel(hw, ah);
+	init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
 
 	ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
 	if (ret) {
···
 		ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
 			curchan->center_freq);
 
-		ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
-					  &hw->conf.chandef);
-
+		ath9k_cmn_get_channel(hw, priv->ah, &hw->conf.chandef);
 		if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
 			ath_err(common, "Unable to set channel\n");
 			ret = -EINVAL;

drivers/net/wireless/ath/ath9k/hw.c

···
 
 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
 {
-	struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
 	struct ath_common *common = ath9k_hw_common(ah);
+	struct ath9k_channel *chan = ah->curchan;
 	unsigned int clockrate;
 
 	/* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
 	if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
 		clockrate = 117;
-	else if (!ah->curchan) /* should really check for CCK instead */
+	else if (!chan) /* should really check for CCK instead */
 		clockrate = ATH9K_CLOCK_RATE_CCK;
-	else if (conf->chandef.chan->band == IEEE80211_BAND_2GHZ)
+	else if (IS_CHAN_2GHZ(chan))
 		clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
 	else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
 		clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
 	else
 		clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
 
-	if (conf_is_ht40(conf))
+	if (IS_CHAN_HT40(chan))
 		clockrate *= 2;
 
 	if (ah->curchan) {
-		if (IS_CHAN_HALF_RATE(ah->curchan))
+		if (IS_CHAN_HALF_RATE(chan))
 			clockrate /= 2;
-		if (IS_CHAN_QUARTER_RATE(ah->curchan))
+		if (IS_CHAN_QUARTER_RATE(chan))
 			clockrate /= 4;
 	}
 
···
 void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan,
 			  int hw_delay)
 {
-	if (IS_CHAN_B(chan))
-		hw_delay = (4 * hw_delay) / 22;
-	else
-		hw_delay /= 10;
+	hw_delay /= 10;
 
 	if (IS_CHAN_HALF_RATE(chan))
 		hw_delay *= 2;
···
 		return;
 	}
 
-	if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
-	    (chan->chanmode == CHANNEL_G_HT40PLUS)) {
+	if (IS_CHAN_HT40PLUS(chan)) {
 		centers->synth_center =
 			chan->channel + HT40_CHANNEL_CENTER_SHIFT;
 		extoff = 1;
···
 void ath9k_hw_init_global_settings(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	const struct ath9k_channel *chan = ah->curchan;
 	int acktimeout, ctstimeout, ack_offset = 0;
 	int slottime;
···
 	 * BA frames in some implementations, but it has been found to fix ACK
 	 * timeout issues in other cases as well.
 	 */
-	if (conf->chandef.chan &&
-	    conf->chandef.chan->band == IEEE80211_BAND_2GHZ &&
+	if (IS_CHAN_2GHZ(chan) &&
 	    !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
 		acktimeout += 64 - sifstime - ah->slottime;
 		ctstimeout += 48 - sifstime - ah->slottime;
···
 {
 	u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
 
-	if (IS_CHAN_B(chan))
-		ctl |= CTL_11B;
-	else if (IS_CHAN_G(chan))
+	if (IS_CHAN_2GHZ(chan))
 		ctl |= CTL_11G;
 	else
 		ctl |= CTL_11A;
···
 	int r;
 
 	if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
-		u32 cur = ah->curchan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ);
-		u32 new = chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ);
-		band_switch = (cur != new);
-		mode_diff = (chan->chanmode != ah->curchan->chanmode);
+		band_switch = IS_CHAN_5GHZ(ah->curchan) != IS_CHAN_5GHZ(chan);
+		mode_diff = (chan->channelFlags != ah->curchan->channelFlags);
 	}
 
 	for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
···
 	ath9k_hw_set_clockrate(ah);
 	ath9k_hw_apply_txpower(ah, chan, false);
 
-	if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
-		ath9k_hw_set_delta_slope(ah, chan);
-
+	ath9k_hw_set_delta_slope(ah, chan);
 	ath9k_hw_spur_mitigate_freq(ah, chan);
 
 	if (band_switch || ini_reloaded)
···
 		goto fail;
 
 	/*
-	 * If cross-band fcc is not supoprted, bail out if
-	 * either channelFlags or chanmode differ.
-	 *
-	 * chanmode will be different if the HT operating mode
-	 * changes because of CSA.
+	 * If cross-band fcc is not supoprted, bail out if channelFlags differ.
 	 */
-	if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH)) {
-		if ((chan->channelFlags & CHANNEL_ALL) !=
-		    (ah->curchan->channelFlags & CHANNEL_ALL))
-			goto fail;
-
-		if (chan->chanmode != ah->curchan->chanmode)
-			goto fail;
-	}
+	if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
+	    chan->channelFlags != ah->curchan->channelFlags)
+		goto fail;
 
 	if (!ath9k_hw_check_alive(ah))
 		goto fail;
···
 
 	ah->caldata = caldata;
 	if (caldata && (chan->channel != caldata->channel ||
-			chan->channelFlags != caldata->channelFlags ||
-			chan->chanmode != caldata->chanmode)) {
+			chan->channelFlags != caldata->channelFlags)) {
 		/* Operating channel changed, reset channel calibration data */
 		memset(caldata, 0, sizeof(*caldata));
 		ath9k_init_nfcal_hist_buffer(ah, chan);
···
 
 	ath9k_hw_init_mfp(ah);
 
-	if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
-		ath9k_hw_set_delta_slope(ah, chan);
-
+	ath9k_hw_set_delta_slope(ah, chan);
 	ath9k_hw_spur_mitigate_freq(ah, chan);
 	ah->eep_ops->set_board_values(ah, chan);
 
···
 }
 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
 
-void ath9k_hw_set11nmac2040(struct ath_hw *ah)
+void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
 {
-	struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
 	u32 macmode;
 
-	if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
+	if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
 		macmode = AR_2040_JOINED_RX_CLEAR;
 	else
 		macmode = 0;

drivers/net/wireless/ath/ath9k/hw.h

···
 	ATH9K_INT_NOCARD = 0xffffffff
 };
 
-#define CHANNEL_CCK       0x00020
-#define CHANNEL_OFDM      0x00040
-#define CHANNEL_2GHZ      0x00080
-#define CHANNEL_5GHZ      0x00100
-#define CHANNEL_PASSIVE   0x00200
-#define CHANNEL_DYN       0x00400
-#define CHANNEL_HALF      0x04000
-#define CHANNEL_QUARTER   0x08000
-#define CHANNEL_HT20      0x10000
-#define CHANNEL_HT40PLUS  0x20000
-#define CHANNEL_HT40MINUS 0x40000
-
-#define CHANNEL_A           (CHANNEL_5GHZ|CHANNEL_OFDM)
-#define CHANNEL_B           (CHANNEL_2GHZ|CHANNEL_CCK)
-#define CHANNEL_G           (CHANNEL_2GHZ|CHANNEL_OFDM)
-#define CHANNEL_G_HT20      (CHANNEL_2GHZ|CHANNEL_HT20)
-#define CHANNEL_A_HT20      (CHANNEL_5GHZ|CHANNEL_HT20)
-#define CHANNEL_G_HT40PLUS  (CHANNEL_2GHZ|CHANNEL_HT40PLUS)
-#define CHANNEL_G_HT40MINUS (CHANNEL_2GHZ|CHANNEL_HT40MINUS)
-#define CHANNEL_A_HT40PLUS  (CHANNEL_5GHZ|CHANNEL_HT40PLUS)
-#define CHANNEL_A_HT40MINUS (CHANNEL_5GHZ|CHANNEL_HT40MINUS)
-#define CHANNEL_ALL				\
-	(CHANNEL_OFDM|				\
-	 CHANNEL_CCK|				\
-	 CHANNEL_2GHZ |				\
-	 CHANNEL_5GHZ |				\
-	 CHANNEL_HT20 |				\
-	 CHANNEL_HT40PLUS |			\
-	 CHANNEL_HT40MINUS)
-
 #define MAX_RTT_TABLE_ENTRY     6
 #define MAX_IQCAL_MEASUREMENT	8
 #define MAX_CL_TAB_ENTRY	16
···
 
 struct ath9k_hw_cal_data {
 	u16 channel;
-	u32 channelFlags;
-	u32 chanmode;
+	u16 channelFlags;
 	unsigned long cal_flags;
 	int32_t CalValid;
 	int8_t iCoff;
···
 struct ath9k_channel {
 	struct ieee80211_channel *chan;
 	u16 channel;
-	u32 channelFlags;
-	u32 chanmode;
+	u16 channelFlags;
 	s16 noisefloor;
 };
 
-#define IS_CHAN_G(_c) ((((_c)->channelFlags & (CHANNEL_G)) == CHANNEL_G) || \
-       (((_c)->channelFlags & CHANNEL_G_HT20) == CHANNEL_G_HT20) || \
-       (((_c)->channelFlags & CHANNEL_G_HT40PLUS) == CHANNEL_G_HT40PLUS) || \
-       (((_c)->channelFlags & CHANNEL_G_HT40MINUS) == CHANNEL_G_HT40MINUS))
-#define IS_CHAN_OFDM(_c) (((_c)->channelFlags & CHANNEL_OFDM) != 0)
-#define IS_CHAN_5GHZ(_c) (((_c)->channelFlags & CHANNEL_5GHZ) != 0)
-#define IS_CHAN_2GHZ(_c) (((_c)->channelFlags & CHANNEL_2GHZ) != 0)
-#define IS_CHAN_HALF_RATE(_c) (((_c)->channelFlags & CHANNEL_HALF) != 0)
-#define IS_CHAN_QUARTER_RATE(_c) (((_c)->channelFlags & CHANNEL_QUARTER) != 0)
-#define IS_CHAN_A_FAST_CLOCK(_ah, _c)			\
-	((((_c)->channelFlags & CHANNEL_5GHZ) != 0) &&	\
-	 ((_ah)->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK))
+#define CHANNEL_5GHZ		BIT(0)
+#define CHANNEL_HALF		BIT(1)
+#define CHANNEL_QUARTER		BIT(2)
+#define CHANNEL_HT		BIT(3)
+#define CHANNEL_HT40PLUS	BIT(4)
+#define CHANNEL_HT40MINUS	BIT(5)
 
-/* These macros check chanmode and not channelFlags */
-#define IS_CHAN_B(_c) ((_c)->chanmode == CHANNEL_B)
-#define IS_CHAN_HT20(_c) (((_c)->chanmode == CHANNEL_A_HT20) ||	\
-			  ((_c)->chanmode == CHANNEL_G_HT20))
-#define IS_CHAN_HT40(_c) (((_c)->chanmode == CHANNEL_A_HT40PLUS) ||	\
-			  ((_c)->chanmode == CHANNEL_A_HT40MINUS) ||	\
-			  ((_c)->chanmode == CHANNEL_G_HT40PLUS) ||	\
-			  ((_c)->chanmode == CHANNEL_G_HT40MINUS))
-#define IS_CHAN_HT(_c) (IS_CHAN_HT20((_c)) || IS_CHAN_HT40((_c)))
+#define IS_CHAN_5GHZ(_c) (!!((_c)->channelFlags & CHANNEL_5GHZ))
+#define IS_CHAN_2GHZ(_c) (!IS_CHAN_5GHZ(_c))
+
+#define IS_CHAN_HALF_RATE(_c) (!!((_c)->channelFlags & CHANNEL_HALF))
+#define IS_CHAN_QUARTER_RATE(_c) (!!((_c)->channelFlags & CHANNEL_QUARTER))
+#define IS_CHAN_A_FAST_CLOCK(_ah, _c)			\
+	(IS_CHAN_5GHZ(_c) && ((_ah)->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK))
+
+#define IS_CHAN_HT(_c) ((_c)->channelFlags & CHANNEL_HT)
+
+#define IS_CHAN_HT20(_c) (IS_CHAN_HT(_c) && !IS_CHAN_HT40(_c))
+
+#define IS_CHAN_HT40(_c) \
+	(!!((_c)->channelFlags & (CHANNEL_HT40PLUS | CHANNEL_HT40MINUS)))
+
+#define IS_CHAN_HT40PLUS(_c) ((_c)->channelFlags & CHANNEL_HT40PLUS)
+#define IS_CHAN_HT40MINUS(_c) ((_c)->channelFlags & CHANNEL_HT40MINUS)
 
 enum ath9k_power_mode {
 	ATH9K_PM_AWAKE = 0,
···
 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set);
 void ath9k_hw_init_global_settings(struct ath_hw *ah);
 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah);
-void ath9k_hw_set11nmac2040(struct ath_hw *ah);
+void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan);
 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period);
 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
 				    const struct ath9k_beacon_state *bs);

drivers/net/wireless/ath/ath9k/init.c

···
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	u8 *ds;
-	struct ath_buf *bf;
 	int i, bsize, desc_len;
 
 	ath_dbg(common, CONFIG, "%s DMA: %u buffers %u desc/buf\n",
···
 		ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
 
 	/* allocate buffers */
-	bsize = sizeof(struct ath_buf) * nbuf;
-	bf = devm_kzalloc(sc->dev, bsize, GFP_KERNEL);
-	if (!bf)
-		return -ENOMEM;
+	if (is_tx) {
+		struct ath_buf *bf;
 
-	for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
-		bf->bf_desc = ds;
-		bf->bf_daddr = DS2PHYS(dd, ds);
+		bsize = sizeof(struct ath_buf) * nbuf;
+		bf = devm_kzalloc(sc->dev, bsize, GFP_KERNEL);
+		if (!bf)
+			return -ENOMEM;
 
-		if (!(sc->sc_ah->caps.hw_caps &
-		      ATH9K_HW_CAP_4KB_SPLITTRANS)) {
-			/*
-			 * Skip descriptor addresses which can cause 4KB
-			 * boundary crossing (addr + length) with a 32 dword
-			 * descriptor fetch.
-			 */
-			while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
-				BUG_ON((caddr_t) bf->bf_desc >=
-				       ((caddr_t) dd->dd_desc +
-					dd->dd_desc_len));
+		for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
+			bf->bf_desc = ds;
+			bf->bf_daddr = DS2PHYS(dd, ds);
 
-				ds += (desc_len * ndesc);
-				bf->bf_desc = ds;
-				bf->bf_daddr = DS2PHYS(dd, ds);
+			if (!(sc->sc_ah->caps.hw_caps &
+				  ATH9K_HW_CAP_4KB_SPLITTRANS)) {
+				/*
+				 * Skip descriptor addresses which can cause 4KB
+				 * boundary crossing (addr + length) with a 32 dword
+				 * descriptor fetch.
+				 */
+				while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
+					BUG_ON((caddr_t) bf->bf_desc >=
+						   ((caddr_t) dd->dd_desc +
+						dd->dd_desc_len));
+
+					ds += (desc_len * ndesc);
+					bf->bf_desc = ds;
+					bf->bf_daddr = DS2PHYS(dd, ds);
+				}
 			}
+			list_add_tail(&bf->list, head);
 		}
-		list_add_tail(&bf->list, head);
+	} else {
+		struct ath_rxbuf *bf;
+
+		bsize = sizeof(struct ath_rxbuf) * nbuf;
+		bf = devm_kzalloc(sc->dev, bsize, GFP_KERNEL);
+		if (!bf)
+			return -ENOMEM;
+
+		for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
+			bf->bf_desc = ds;
+			bf->bf_daddr = DS2PHYS(dd, ds);
+
+			if (!(sc->sc_ah->caps.hw_caps &
+				  ATH9K_HW_CAP_4KB_SPLITTRANS)) {
+				/*
+				 * Skip descriptor addresses which can cause 4KB
+				 * boundary crossing (addr + length) with a 32 dword
+				 * descriptor fetch.
+				 */
+				while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
+					BUG_ON((caddr_t) bf->bf_desc >=
+						   ((caddr_t) dd->dd_desc +
+						dd->dd_desc_len));
+
+					ds += (desc_len * ndesc);
+					bf->bf_desc = ds;
+					bf->bf_daddr = DS2PHYS(dd, ds);
+				}
+			}
+			list_add_tail(&bf->list, head);
+		}
 	}
 	return 0;
 }
···
 	sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
 	sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
 
-	sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
 	ath_cabq_update(sc);
 
 	sc->tx.uapsdq = ath_txq_setup(sc, ATH9K_TX_QUEUE_UAPSD, 0);
···
 		chan = &sband->channels[i];
 		ah->curchan = &ah->channels[chan->hw_value];
 		cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_HT20);
-		ath9k_cmn_update_ichannel(ah->curchan, &chandef);
+		ath9k_cmn_get_channel(sc->hw, ah, &chandef);
 		ath9k_hw_set_txpowerlimit(ah, MAX_RATE_POWER, true);
 	}
 }

drivers/net/wireless/ath/ath9k/mac.c

···
 bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath9k_channel *chan = ah->curchan;
 	struct ath9k_tx_queue_info *qi;
 	u32 cwMin, chanCwMin, value;
 
···
 	ath_dbg(common, QUEUE, "Reset TX queue: %u\n", q);
 
 	if (qi->tqi_cwmin == ATH9K_TXQ_USEDEFAULT) {
-		if (chan && IS_CHAN_B(chan))
-			chanCwMin = INIT_CWMIN_11B;
-		else
-			chanCwMin = INIT_CWMIN;
+		chanCwMin = INIT_CWMIN;
 
 		for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1);
 	} else

drivers/net/wireless/ath/ath9k/mac.h

···
 #define ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS 0x00000001
 
 #define ATH9K_DECOMP_MASK_SIZE     128
-#define ATH9K_READY_TIME_LO_BOUND  50
-#define ATH9K_READY_TIME_HI_BOUND  96
 
 enum ath9k_pkt_type {
 	ATH9K_PKT_TYPE_NORMAL = 0,

drivers/net/wireless/ath/ath9k/main.c

···
  * by reseting the chip.  To accomplish this we must first cleanup any pending
  * DMA, then restart stuff.
 */
-static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
-		    struct ath9k_channel *hchan)
+static int ath_set_channel(struct ath_softc *sc, struct cfg80211_chan_def *chandef)
 {
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+	struct ieee80211_hw *hw = sc->hw;
+	struct ath9k_channel *hchan;
+	struct ieee80211_channel *chan = chandef->chan;
+	unsigned long flags;
+	bool offchannel;
+	int pos = chan->hw_value;
+	int old_pos = -1;
 	int r;
 
 	if (test_bit(SC_OP_INVALID, &sc->sc_flags))
 		return -EIO;
 
-	r = ath_reset_internal(sc, hchan);
+	offchannel = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
 
-	return r;
+	if (ah->curchan)
+		old_pos = ah->curchan - &ah->channels[0];
+
+	ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
+		chan->center_freq, chandef->width);
+
+	/* update survey stats for the old channel before switching */
+	spin_lock_irqsave(&common->cc_lock, flags);
+	ath_update_survey_stats(sc);
+	spin_unlock_irqrestore(&common->cc_lock, flags);
+
+	ath9k_cmn_get_channel(hw, ah, chandef);
+
+	/*
+	 * If the operating channel changes, change the survey in-use flags
+	 * along with it.
+	 * Reset the survey data for the new channel, unless we're switching
+	 * back to the operating channel from an off-channel operation.
+	 */
+	if (!offchannel && sc->cur_survey != &sc->survey[pos]) {
+		if (sc->cur_survey)
+			sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
+
+		sc->cur_survey = &sc->survey[pos];
+
+		memset(sc->cur_survey, 0, sizeof(struct survey_info));
+		sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
+	} else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
+		memset(&sc->survey[pos], 0, sizeof(struct survey_info));
+	}
+
+	hchan = &sc->sc_ah->channels[pos];
+	r = ath_reset_internal(sc, hchan);
+	if (r)
+		return r;
+
+	/*
+	 * The most recent snapshot of channel->noisefloor for the old
+	 * channel is only available after the hardware reset. Copy it to
+	 * the survey stats now.
+	 */
+	if (old_pos >= 0)
+		ath_update_survey_nf(sc, old_pos);
+
+	/*
+	 * Enable radar pulse detection if on a DFS channel. Spectral
+	 * scanning and radar detection can not be used concurrently.
+	 */
+	if (hw->conf.radar_enabled) {
+		u32 rxfilter;
+
+		/* set HW specific DFS configuration */
+		ath9k_hw_set_radar_params(ah);
+		rxfilter = ath9k_hw_getrxfilter(ah);
+		rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
+				ATH9K_RX_FILTER_PHYERR;
+		ath9k_hw_setrxfilter(ah, rxfilter);
+		ath_dbg(common, DFS, "DFS enabled at freq %d\n",
+			chan->center_freq);
+	} else {
+		/* perform spectral scan if requested. */
+		if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
+			sc->spectral_mode == SPECTRAL_CHANSCAN)
+			ath9k_spectral_scan_trigger(hw);
+	}
+
+	return 0;
 }
 
 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
···
 	ath9k_ps_wakeup(sc);
 	mutex_lock(&sc->mutex);
 
-	init_channel = ath9k_cmn_get_curchannel(hw, ah);
+	init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
 
 	/* Reset SERDES registers */
 	ath9k_hw_configpcipowersave(ah, false);
···
 	}
 
 	if (!ah->curchan)
-		ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
+		ah->curchan = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
 
 	ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
 	ath9k_hw_phy_disable(ah);
···
 	ath_dbg(common, CONFIG, "Driver halt\n");
 }
 
-bool ath9k_uses_beacons(int type)
+static bool ath9k_uses_beacons(int type)
 {
 	switch (type) {
 	case NL80211_IFTYPE_AP:
···
 	}
 
 	if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
-		struct ieee80211_channel *curchan = hw->conf.chandef.chan;
-		int pos = curchan->hw_value;
-		int old_pos = -1;
-		unsigned long flags;
-
-		if (ah->curchan)
-			old_pos = ah->curchan - &ah->channels[0];
-
-		ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
-			curchan->center_freq, hw->conf.chandef.width);
-
-		/* update survey stats for the old channel before switching */
-		spin_lock_irqsave(&common->cc_lock, flags);
-		ath_update_survey_stats(sc);
-		spin_unlock_irqrestore(&common->cc_lock, flags);
-
-		ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
-					  &conf->chandef);
-
-		/*
-		 * If the operating channel changes, change the survey in-use flags
-		 * along with it.
-		 * Reset the survey data for the new channel, unless we're switching
-		 * back to the operating channel from an off-channel operation.
-		 */
-		if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
-		    sc->cur_survey != &sc->survey[pos]) {
-
-			if (sc->cur_survey)
-				sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
-
-			sc->cur_survey = &sc->survey[pos];
-
-			memset(sc->cur_survey, 0, sizeof(struct survey_info));
-			sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
-		} else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
-			memset(&sc->survey[pos], 0, sizeof(struct survey_info));
-		}
-
-		if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
+		if (ath_set_channel(sc, &hw->conf.chandef) < 0) {
 			ath_err(common, "Unable to set channel\n");
 			mutex_unlock(&sc->mutex);
 			ath9k_ps_restore(sc);
 			return -EINVAL;
-		}
-
-		/*
-		 * The most recent snapshot of channel->noisefloor for the old
-		 * channel is only available after the hardware reset. Copy it to
-		 * the survey stats now.
-		 */
-		if (old_pos >= 0)
-			ath_update_survey_nf(sc, old_pos);
-
-		/*
-		 * Enable radar pulse detection if on a DFS channel. Spectral
-		 * scanning and radar detection can not be used concurrently.
-		 */
-		if (hw->conf.radar_enabled) {
-			u32 rxfilter;
-
-			/* set HW specific DFS configuration */
-			ath9k_hw_set_radar_params(ah);
-			rxfilter = ath9k_hw_getrxfilter(ah);
-			rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
-				    ATH9K_RX_FILTER_PHYERR;
-			ath9k_hw_setrxfilter(ah, rxfilter);
-			ath_dbg(common, DFS, "DFS enabled at freq %d\n",
-				curchan->center_freq);
-		} else {
-			/* perform spectral scan if requested. */
-			if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
-			    sc->spectral_mode == SPECTRAL_CHANSCAN)
-				ath9k_spectral_scan_trigger(hw);
 		}
 	}
 

drivers/net/wireless/ath/ath9k/mci.c

···
 	chan_start = wlan_chan - 10;
 	chan_end = wlan_chan + 10;
 
-	if (chan->chanmode == CHANNEL_G_HT40PLUS)
+	if (IS_CHAN_HT40PLUS(chan))
 		chan_end += 20;
-	else if (chan->chanmode == CHANNEL_G_HT40MINUS)
+	else if (IS_CHAN_HT40MINUS(chan))
 		chan_start -= 20;
 
 	/* adjust side band */
···
 
 	if (setchannel) {
 		struct ath9k_hw_cal_data *caldata = &sc->caldata;
-		if ((caldata->chanmode == CHANNEL_G_HT40PLUS) &&
+		if (IS_CHAN_HT40PLUS(ah->curchan) &&
 		    (ah->curchan->channel > caldata->channel) &&
 		    (ah->curchan->channel <= caldata->channel + 20))
 			return;
-		if ((caldata->chanmode == CHANNEL_G_HT40MINUS) &&
+		if (IS_CHAN_HT40MINUS(ah->curchan) &&
 		    (ah->curchan->channel < caldata->channel) &&
 		    (ah->curchan->channel >= caldata->channel - 20))
 			return;

drivers/net/wireless/ath/ath9k/recv.c

···
 #include "ath9k.h"
 #include "ar9003_mac.h"
 
-#define SKB_CB_ATHBUF(__skb)	(*((struct ath_buf **)__skb->cb))
+#define SKB_CB_ATHBUF(__skb)	(*((struct ath_rxbuf **)__skb->cb))
 
 static inline bool ath9k_check_auto_sleep(struct ath_softc *sc)
 {
···
  * buffer (or rx fifo). This can incorrectly acknowledge packets
  * to a sender if last desc is self-linked.
  */
-static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf)
+static void ath_rx_buf_link(struct ath_softc *sc, struct ath_rxbuf *bf)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
···
 	sc->rx.rxlink = &ds->ds_link;
 }
 
-static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_buf *bf)
+static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_rxbuf *bf)
 {
 	if (sc->rx.buf_hold)
 		ath_rx_buf_link(sc, sc->rx.buf_hold);
···
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_rx_edma *rx_edma;
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 
 	rx_edma = &sc->rx.rx_edma[qtype];
 	if (skb_queue_len(&rx_edma->rx_fifo) >= rx_edma->rx_fifo_hwsize)
 		return false;
 
-	bf = list_first_entry(&sc->rx.rxbuf, struct ath_buf, list);
+	bf = list_first_entry(&sc->rx.rxbuf, struct ath_rxbuf, list);
 	list_del_init(&bf->list);
 
 	skb = bf->bf_mpdu;
···
 				  enum ath9k_rx_qtype qtype)
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	struct ath_buf *bf, *tbf;
+	struct ath_rxbuf *bf, *tbf;
 
 	if (list_empty(&sc->rx.rxbuf)) {
 		ath_dbg(common, QUEUE, "No free rx buf available\n");
···
 static void ath_rx_remove_buffer(struct ath_softc *sc,
 				 enum ath9k_rx_qtype qtype)
 {
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	struct ath_rx_edma *rx_edma;
 	struct sk_buff *skb;
 
···
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 
 	ath_rx_remove_buffer(sc, ATH9K_RX_QUEUE_LP);
 	ath_rx_remove_buffer(sc, ATH9K_RX_QUEUE_HP);
···
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath_hw *ah = sc->sc_ah;
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int error = 0, i;
 	u32 size;
 
···
 	ath_rx_edma_init_queue(&sc->rx.rx_edma[ATH9K_RX_QUEUE_HP],
 			       ah->caps.rx_hp_qdepth);
 
-	size = sizeof(struct ath_buf) * nbufs;
+	size = sizeof(struct ath_rxbuf) * nbufs;
 	bf = devm_kzalloc(sc->dev, size, GFP_KERNEL);
 	if (!bf)
 		return -ENOMEM;
···
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int error = 0;
 
 	spin_lock_init(&sc->sc_pcu_lock);
···
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 
 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 		ath_rx_edma_cleanup(sc);
···
 int ath_startrecv(struct ath_softc *sc)
 {
 	struct ath_hw *ah = sc->sc_ah;
-	struct ath_buf *bf, *tbf;
+	struct ath_rxbuf *bf, *tbf;
 
 	if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 		ath_edma_start_recv(sc);
···
 	if (list_empty(&sc->rx.rxbuf))
 		goto start_recv;
 
-	bf = list_first_entry(&sc->rx.rxbuf, struct ath_buf, list);
+	bf = list_first_entry(&sc->rx.rxbuf, struct ath_rxbuf, list);
 	ath9k_hw_putrxbuf(ah, bf->bf_daddr);
 	ath9k_hw_rxena(ah);
 
···
 static bool ath_edma_get_buffers(struct ath_softc *sc,
 				 enum ath9k_rx_qtype qtype,
 				 struct ath_rx_status *rs,
-				 struct ath_buf **dest)
+				 struct ath_rxbuf **dest)
 {
 	struct ath_rx_edma *rx_edma = &sc->rx.rx_edma[qtype];
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int ret;
 
 	skb = skb_peek(&rx_edma->rx_fifo);
···
 	return true;
 }
 
-static struct ath_buf *ath_edma_get_next_rx_buf(struct ath_softc *sc,
+static struct ath_rxbuf *ath_edma_get_next_rx_buf(struct ath_softc *sc,
 						struct ath_rx_status *rs,
 						enum ath9k_rx_qtype qtype)
 {
-	struct ath_buf *bf = NULL;
+	struct ath_rxbuf *bf = NULL;
 
 	while (ath_edma_get_buffers(sc, qtype, rs, &bf)) {
 		if (!bf)
···
 	return NULL;
 }
 
-static struct ath_buf *ath_get_next_rx_buf(struct ath_softc *sc,
+static struct ath_rxbuf *ath_get_next_rx_buf(struct ath_softc *sc,
 					   struct ath_rx_status *rs)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_desc *ds;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int ret;
 
 	if (list_empty(&sc->rx.rxbuf)) {
···
 		return NULL;
 	}
 
-	bf = list_first_entry(&sc->rx.rxbuf, struct ath_buf, list);
+	bf = list_first_entry(&sc->rx.rxbuf, struct ath_rxbuf, list);
 	if (bf == sc->rx.buf_hold)
 		return NULL;
 
···
 	ret = ath9k_hw_rxprocdesc(ah, ds, rs);
 	if (ret == -EINPROGRESS) {
 		struct ath_rx_status trs;
-		struct ath_buf *tbf;
+		struct ath_rxbuf *tbf;
 		struct ath_desc *tds;
 
 		memset(&trs, 0, sizeof(trs));
···
 			return NULL;
 		}
 
-		tbf = list_entry(bf->list.next, struct ath_buf, list);
+		tbf = list_entry(bf->list.next, struct ath_rxbuf, list);
 
 		/*
 		 * On some hardware the descriptor status words could
···
 
 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
 {
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	struct sk_buff *skb = NULL, *requeue_skb, *hdr_skb;
 	struct ieee80211_rx_status *rxs;
 	struct ath_hw *ah = sc->sc_ah;

drivers/net/wireless/ath/ath9k/xmit.c

···
 	int qnum = sc->beacon.cabq->axq_qnum;
 
 	ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
-	/*
-	 * Ensure the readytime % is within the bounds.
-	 */
-	if (sc->config.cabqReadytime < ATH9K_READY_TIME_LO_BOUND)
-		sc->config.cabqReadytime = ATH9K_READY_TIME_LO_BOUND;
-	else if (sc->config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND)
-		sc->config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND;
 
 	qi.tqi_readyTime = (cur_conf->beacon_interval *
-			    sc->config.cabqReadytime) / 100;
+			    ATH_CABQ_READY_TIME) / 100;
 	ath_txq_update(sc, qnum, &qi);
 
 	return 0;
···
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath9k_channel *curchan = ah->curchan;
 
-	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) &&
-	    (curchan->channelFlags & CHANNEL_5GHZ) &&
+	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && IS_CHAN_5GHZ(curchan) &&
 	    (chainmask == 0x7) && (rate < 0x90))
 		return 0x3;
 	else if (AR_SREV_9462(ah) && ath9k_hw_btcoex_is_enabled(ah) &&

drivers/net/wireless/ath/wcn36xx/Kconfig

···
+config WCN36XX
+	tristate "Qualcomm Atheros WCN3660/3680 support"
+	depends on MAC80211 && HAS_DMA
+	---help---
+	  This module adds support for wireless adapters based on
+	  Qualcomm Atheros WCN3660 and WCN3680 mobile chipsets.
+
+	  If you choose to build a module, it'll be called wcn36xx.
+
+config WCN36XX_DEBUGFS
+	bool "WCN36XX debugfs support"
+	depends on WCN36XX
+	---help---
+	  Enabled debugfs support
+
+	  If unsure, say Y to make it easier to debug problems.

drivers/net/wireless/ath/wcn36xx/Makefile

···
+obj-$(CONFIG_WCN36XX) := wcn36xx.o
+wcn36xx-y +=   main.o \
+               dxe.o \
+               txrx.o \
+               smd.o \
+               pmc.o \
+               debug.o

drivers/net/wireless/ath/wcn36xx/debug.c

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/debugfs.h>
+#include <linux/uaccess.h>
+#include "wcn36xx.h"
+#include "debug.h"
+#include "pmc.h"
+
+#ifdef CONFIG_WCN36XX_DEBUGFS
+
+static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
+				   size_t count, loff_t *ppos)
+{
+	struct wcn36xx *wcn = file->private_data;
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_vif *vif = NULL;
+	char buf[3];
+
+	list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (NL80211_IFTYPE_STATION == vif->type) {
+				if (vif_priv->pw_state == WCN36XX_BMPS)
+					buf[0] = '1';
+				else
+					buf[0] = '0';
+				break;
+			}
+	}
+	buf[1] = '\n';
+	buf[2] = 0x00;
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t write_file_bool_bmps(struct file *file,
+				    const char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct wcn36xx *wcn = file->private_data;
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_vif *vif = NULL;
+
+	char buf[32];
+	int buf_size;
+
+	buf_size = min(count, (sizeof(buf)-1));
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	switch (buf[0]) {
+	case 'y':
+	case 'Y':
+	case '1':
+		list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (NL80211_IFTYPE_STATION == vif->type) {
+				wcn36xx_enable_keep_alive_null_packet(wcn, vif);
+				wcn36xx_pmc_enter_bmps_state(wcn, vif);
+			}
+		}
+		break;
+	case 'n':
+	case 'N':
+	case '0':
+		list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (NL80211_IFTYPE_STATION == vif->type)
+				wcn36xx_pmc_exit_bmps_state(wcn, vif);
+		}
+		break;
+	}
+
+	return count;
+}
+
+static const struct file_operations fops_wcn36xx_bmps = {
+	.open = simple_open,
+	.read  =       read_file_bool_bmps,
+	.write =       write_file_bool_bmps,
+};
+
+static ssize_t write_file_dump(struct file *file,
+				    const char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct wcn36xx *wcn = file->private_data;
+	char buf[255], *tmp;
+	int buf_size;
+	u32 arg[WCN36xx_MAX_DUMP_ARGS];
+	int i;
+
+	memset(buf, 0, sizeof(buf));
+	memset(arg, 0, sizeof(arg));
+
+	buf_size = min(count, (sizeof(buf) - 1));
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	tmp = buf;
+
+	for (i = 0; i < WCN36xx_MAX_DUMP_ARGS; i++) {
+		char *begin;
+		begin = strsep(&tmp, " ");
+		if (begin == NULL)
+			break;
+
+		if (kstrtoul(begin, 0, (unsigned long *)(arg + i)) != 0)
+			break;
+	}
+
+	wcn36xx_info("DUMP args is %d %d %d %d %d\n", arg[0], arg[1], arg[2],
+		     arg[3], arg[4]);
+	wcn36xx_smd_dump_cmd_req(wcn, arg[0], arg[1], arg[2], arg[3], arg[4]);
+
+	return count;
+}
+
+static const struct file_operations fops_wcn36xx_dump = {
+	.open = simple_open,
+	.write =       write_file_dump,
+};
+
+#define ADD_FILE(name, mode, fop, priv_data)		\
+	do {							\
+		struct dentry *d;				\
+		d = debugfs_create_file(__stringify(name),	\
+					mode, dfs->rootdir,	\
+					priv_data, fop);	\
+		dfs->file_##name.dentry = d;			\
+		if (IS_ERR(d)) {				\
+			wcn36xx_warn("Create the debugfs entry failed");\
+			dfs->file_##name.dentry = NULL;		\
+		}						\
+	} while (0)
+
+
+void wcn36xx_debugfs_init(struct wcn36xx *wcn)
+{
+	struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
+
+	dfs->rootdir = debugfs_create_dir(KBUILD_MODNAME,
+					  wcn->hw->wiphy->debugfsdir);
+	if (IS_ERR(dfs->rootdir)) {
+		wcn36xx_warn("Create the debugfs failed\n");
+		dfs->rootdir = NULL;
+	}
+
+	ADD_FILE(bmps_switcher, S_IRUSR | S_IWUSR,
+		 &fops_wcn36xx_bmps, wcn);
+	ADD_FILE(dump, S_IWUSR, &fops_wcn36xx_dump, wcn);
+}
+
+void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
+{
+	struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
+	debugfs_remove_recursive(dfs->rootdir);
+}
+
+#endif /* CONFIG_WCN36XX_DEBUGFS */

drivers/net/wireless/ath/wcn36xx/debug.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WCN36XX_DEBUG_H_
+#define _WCN36XX_DEBUG_H_
+
+#include <linux/kernel.h>
+
+#define WCN36xx_MAX_DUMP_ARGS	5
+
+#ifdef CONFIG_WCN36XX_DEBUGFS
+struct wcn36xx_dfs_file {
+	struct dentry *dentry;
+	u32 value;
+};
+
+struct wcn36xx_dfs_entry {
+	struct dentry *rootdir;
+	struct wcn36xx_dfs_file file_bmps_switcher;
+	struct wcn36xx_dfs_file file_dump;
+};
+
+void wcn36xx_debugfs_init(struct wcn36xx *wcn);
+void wcn36xx_debugfs_exit(struct wcn36xx *wcn);
+
+#else
+static inline void wcn36xx_debugfs_init(struct wcn36xx *wcn)
+{
+}
+static inline void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
+{
+}
+
+#endif /* CONFIG_WCN36XX_DEBUGFS */
+
+#endif	/* _WCN36XX_DEBUG_H_ */

drivers/net/wireless/ath/wcn36xx/dxe.c

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* DXE - DMA transfer engine
+ * we have 2 channels(High prio and Low prio) for TX and 2 channels for RX.
+ * through low channels data packets are transfered
+ * through high channels managment packets are transfered
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/interrupt.h>
+#include "wcn36xx.h"
+#include "txrx.h"
+
+void *wcn36xx_dxe_get_next_bd(struct wcn36xx *wcn, bool is_low)
+{
+	struct wcn36xx_dxe_ch *ch = is_low ?
+		&wcn->dxe_tx_l_ch :
+		&wcn->dxe_tx_h_ch;
+
+	return ch->head_blk_ctl->bd_cpu_addr;
+}
+
+static void wcn36xx_dxe_write_register(struct wcn36xx *wcn, int addr, int data)
+{
+	wcn36xx_dbg(WCN36XX_DBG_DXE,
+		    "wcn36xx_dxe_write_register: addr=%x, data=%x\n",
+		    addr, data);
+
+	writel(data, wcn->mmio + addr);
+}
+
+static void wcn36xx_dxe_read_register(struct wcn36xx *wcn, int addr, int *data)
+{
+	*data = readl(wcn->mmio + addr);
+
+	wcn36xx_dbg(WCN36XX_DBG_DXE,
+		    "wcn36xx_dxe_read_register: addr=%x, data=%x\n",
+		    addr, *data);
+}
+
+static void wcn36xx_dxe_free_ctl_block(struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *ctl = ch->head_blk_ctl, *next;
+	int i;
+
+	for (i = 0; i < ch->desc_num && ctl; i++) {
+		next = ctl->next;
+		kfree(ctl);
+		ctl = next;
+	}
+}
+
+static int wcn36xx_dxe_allocate_ctl_block(struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *prev_ctl = NULL;
+	struct wcn36xx_dxe_ctl *cur_ctl = NULL;
+	int i;
+
+	for (i = 0; i < ch->desc_num; i++) {
+		cur_ctl = kzalloc(sizeof(*cur_ctl), GFP_KERNEL);
+		if (!cur_ctl)
+			goto out_fail;
+
+		cur_ctl->ctl_blk_order = i;
+		if (i == 0) {
+			ch->head_blk_ctl = cur_ctl;
+			ch->tail_blk_ctl = cur_ctl;
+		} else if (ch->desc_num - 1 == i) {
+			prev_ctl->next = cur_ctl;
+			cur_ctl->next = ch->head_blk_ctl;
+		} else {
+			prev_ctl->next = cur_ctl;
+		}
+		prev_ctl = cur_ctl;
+	}
+
+	return 0;
+
+out_fail:
+	wcn36xx_dxe_free_ctl_block(ch);
+	return -ENOMEM;
+}
+
+int wcn36xx_dxe_alloc_ctl_blks(struct wcn36xx *wcn)
+{
+	int ret;
+
+	wcn->dxe_tx_l_ch.ch_type = WCN36XX_DXE_CH_TX_L;
+	wcn->dxe_tx_h_ch.ch_type = WCN36XX_DXE_CH_TX_H;
+	wcn->dxe_rx_l_ch.ch_type = WCN36XX_DXE_CH_RX_L;
+	wcn->dxe_rx_h_ch.ch_type = WCN36XX_DXE_CH_RX_H;
+
+	wcn->dxe_tx_l_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_TX_L;
+	wcn->dxe_tx_h_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_TX_H;
+	wcn->dxe_rx_l_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_RX_L;
+	wcn->dxe_rx_h_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_RX_H;
+
+	wcn->dxe_tx_l_ch.dxe_wq =  WCN36XX_DXE_WQ_TX_L;
+	wcn->dxe_tx_h_ch.dxe_wq =  WCN36XX_DXE_WQ_TX_H;
+
+	wcn->dxe_tx_l_ch.ctrl_bd = WCN36XX_DXE_CTRL_TX_L_BD;
+	wcn->dxe_tx_h_ch.ctrl_bd = WCN36XX_DXE_CTRL_TX_H_BD;
+
+	wcn->dxe_tx_l_ch.ctrl_skb = WCN36XX_DXE_CTRL_TX_L_SKB;
+	wcn->dxe_tx_h_ch.ctrl_skb = WCN36XX_DXE_CTRL_TX_H_SKB;
+
+	wcn->dxe_tx_l_ch.reg_ctrl = WCN36XX_DXE_REG_CTL_TX_L;
+	wcn->dxe_tx_h_ch.reg_ctrl = WCN36XX_DXE_REG_CTL_TX_H;
+
+	wcn->dxe_tx_l_ch.def_ctrl = WCN36XX_DXE_CH_DEFAULT_CTL_TX_L;
+	wcn->dxe_tx_h_ch.def_ctrl = WCN36XX_DXE_CH_DEFAULT_CTL_TX_H;
+
+	/* DXE control block allocation */
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_tx_l_ch);
+	if (ret)
+		goto out_err;
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_tx_h_ch);
+	if (ret)
+		goto out_err;
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_rx_l_ch);
+	if (ret)
+		goto out_err;
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_rx_h_ch);
+	if (ret)
+		goto out_err;
+
+	/* Initialize SMSM state  Clear TX Enable RING EMPTY STATE */
+	ret = wcn->ctrl_ops->smsm_change_state(
+		WCN36XX_SMSM_WLAN_TX_ENABLE,
+		WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY);
+
+	return 0;
+
+out_err:
+	wcn36xx_err("Failed to allocate DXE control blocks\n");
+	wcn36xx_dxe_free_ctl_blks(wcn);
+	return -ENOMEM;
+}
+
+void wcn36xx_dxe_free_ctl_blks(struct wcn36xx *wcn)
+{
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_tx_l_ch);
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_tx_h_ch);
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_rx_l_ch);
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_rx_h_ch);
+}
+
+static int wcn36xx_dxe_init_descs(struct wcn36xx_dxe_ch *wcn_ch)
+{
+	struct wcn36xx_dxe_desc *cur_dxe = NULL;
+	struct wcn36xx_dxe_desc *prev_dxe = NULL;
+	struct wcn36xx_dxe_ctl *cur_ctl = NULL;
+	size_t size;
+	int i;
+
+	size = wcn_ch->desc_num * sizeof(struct wcn36xx_dxe_desc);
+	wcn_ch->cpu_addr = dma_alloc_coherent(NULL, size, &wcn_ch->dma_addr,
+					      GFP_KERNEL);
+	if (!wcn_ch->cpu_addr)
+		return -ENOMEM;
+
+	memset(wcn_ch->cpu_addr, 0, size);
+
+	cur_dxe = (struct wcn36xx_dxe_desc *)wcn_ch->cpu_addr;
+	cur_ctl = wcn_ch->head_blk_ctl;
+
+	for (i = 0; i < wcn_ch->desc_num; i++) {
+		cur_ctl->desc = cur_dxe;
+		cur_ctl->desc_phy_addr = wcn_ch->dma_addr +
+			i * sizeof(struct wcn36xx_dxe_desc);
+
+		switch (wcn_ch->ch_type) {
+		case WCN36XX_DXE_CH_TX_L:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_TX_L;
+			cur_dxe->dst_addr_l = WCN36XX_DXE_WQ_TX_L;
+			break;
+		case WCN36XX_DXE_CH_TX_H:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_TX_H;
+			cur_dxe->dst_addr_l = WCN36XX_DXE_WQ_TX_H;
+			break;
+		case WCN36XX_DXE_CH_RX_L:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_RX_L;
+			cur_dxe->src_addr_l = WCN36XX_DXE_WQ_RX_L;
+			break;
+		case WCN36XX_DXE_CH_RX_H:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_RX_H;
+			cur_dxe->src_addr_l = WCN36XX_DXE_WQ_RX_H;
+			break;
+		}
+		if (0 == i) {
+			cur_dxe->phy_next_l = 0;
+		} else if ((0 < i) && (i < wcn_ch->desc_num - 1)) {
+			prev_dxe->phy_next_l =
+				cur_ctl->desc_phy_addr;
+		} else if (i == (wcn_ch->desc_num - 1)) {
+			prev_dxe->phy_next_l =
+				cur_ctl->desc_phy_addr;
+			cur_dxe->phy_next_l =
+				wcn_ch->head_blk_ctl->desc_phy_addr;
+		}
+		cur_ctl = cur_ctl->next;
+		prev_dxe = cur_dxe;
+		cur_dxe++;
+	}
+
+	return 0;
+}
+
+static void wcn36xx_dxe_init_tx_bd(struct wcn36xx_dxe_ch *ch,
+				   struct wcn36xx_dxe_mem_pool *pool)
+{
+	int i, chunk_size = pool->chunk_size;
+	dma_addr_t bd_phy_addr = pool->phy_addr;
+	void *bd_cpu_addr = pool->virt_addr;
+	struct wcn36xx_dxe_ctl *cur = ch->head_blk_ctl;
+
+	for (i = 0; i < ch->desc_num; i++) {
+		/* Only every second dxe needs a bd pointer,
+		   the other will point to the skb data */
+		if (!(i & 1)) {
+			cur->bd_phy_addr = bd_phy_addr;
+			cur->bd_cpu_addr = bd_cpu_addr;
+			bd_phy_addr += chunk_size;
+			bd_cpu_addr += chunk_size;
+		} else {
+			cur->bd_phy_addr = 0;
+			cur->bd_cpu_addr = NULL;
+		}
+		cur = cur->next;
+	}
+}
+
+static int wcn36xx_dxe_enable_ch_int(struct wcn36xx *wcn, u16 wcn_ch)
+{
+	int reg_data = 0;
+
+	wcn36xx_dxe_read_register(wcn,
+				  WCN36XX_DXE_INT_MASK_REG,
+				  &reg_data);
+
+	reg_data |= wcn_ch;
+
+	wcn36xx_dxe_write_register(wcn,
+				   WCN36XX_DXE_INT_MASK_REG,
+				   (int)reg_data);
+	return 0;
+}
+
+static int wcn36xx_dxe_fill_skb(struct wcn36xx_dxe_ctl *ctl)
+{
+	struct wcn36xx_dxe_desc *dxe = ctl->desc;
+	struct sk_buff *skb;
+
+	skb = alloc_skb(WCN36XX_PKT_SIZE, GFP_ATOMIC);
+	if (skb == NULL)
+		return -ENOMEM;
+
+	dxe->dst_addr_l = dma_map_single(NULL,
+					 skb_tail_pointer(skb),
+					 WCN36XX_PKT_SIZE,
+					 DMA_FROM_DEVICE);
+	ctl->skb = skb;
+
+	return 0;
+}
+
+static int wcn36xx_dxe_ch_alloc_skb(struct wcn36xx *wcn,
+				    struct wcn36xx_dxe_ch *wcn_ch)
+{
+	int i;
+	struct wcn36xx_dxe_ctl *cur_ctl = NULL;
+
+	cur_ctl = wcn_ch->head_blk_ctl;
+
+	for (i = 0; i < wcn_ch->desc_num; i++) {
+		wcn36xx_dxe_fill_skb(cur_ctl);
+		cur_ctl = cur_ctl->next;
+	}
+
+	return 0;
+}
+
+static void wcn36xx_dxe_ch_free_skbs(struct wcn36xx *wcn,
+				     struct wcn36xx_dxe_ch *wcn_ch)
+{
+	struct wcn36xx_dxe_ctl *cur = wcn_ch->head_blk_ctl;
+	int i;
+
+	for (i = 0; i < wcn_ch->desc_num; i++) {
+		kfree_skb(cur->skb);
+		cur = cur->next;
+	}
+}
+
+void wcn36xx_dxe_tx_ack_ind(struct wcn36xx *wcn, u32 status)
+{
+	struct ieee80211_tx_info *info;
+	struct sk_buff *skb;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wcn->dxe_lock, flags);
+	skb = wcn->tx_ack_skb;
+	wcn->tx_ack_skb = NULL;
+	spin_unlock_irqrestore(&wcn->dxe_lock, flags);
+
+	if (!skb) {
+		wcn36xx_warn("Spurious TX complete indication\n");
+		return;
+	}
+
+	info = IEEE80211_SKB_CB(skb);
+
+	if (status == 1)
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
+	wcn36xx_dbg(WCN36XX_DBG_DXE, "dxe tx ack status: %d\n", status);
+
+	ieee80211_tx_status_irqsafe(wcn->hw, skb);
+	ieee80211_wake_queues(wcn->hw);
+}
+
+static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *ctl = ch->tail_blk_ctl;
+	struct ieee80211_tx_info *info;
+	unsigned long flags;
+
+	/*
+	 * Make at least one loop of do-while because in case ring is
+	 * completely full head and tail are pointing to the same element
+	 * and while-do will not make any cycles.
+	 */
+	do {
+		if (ctl->skb) {
+			dma_unmap_single(NULL, ctl->desc->src_addr_l,
+					 ctl->skb->len, DMA_TO_DEVICE);
+			info = IEEE80211_SKB_CB(ctl->skb);
+			if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) {
+				/* Keep frame until TX status comes */
+				ieee80211_free_txskb(wcn->hw, ctl->skb);
+			}
+			spin_lock_irqsave(&ctl->skb_lock, flags);
+			if (wcn->queues_stopped) {
+				wcn->queues_stopped = false;
+				ieee80211_wake_queues(wcn->hw);
+			}
+			spin_unlock_irqrestore(&ctl->skb_lock, flags);
+
+			ctl->skb = NULL;
+		}
+		ctl = ctl->next;
+	} while (ctl != ch->head_blk_ctl &&
+	       !(ctl->desc->ctrl & WCN36XX_DXE_CTRL_VALID_MASK));
+
+	ch->tail_blk_ctl = ctl;
+}
+
+static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
+{
+	struct wcn36xx *wcn = (struct wcn36xx *)dev;
+	int int_src, int_reason;
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_INT_SRC_RAW_REG, &int_src);
+
+	if (int_src & WCN36XX_INT_MASK_CHAN_TX_H) {
+		wcn36xx_dxe_read_register(wcn,
+					  WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_H,
+					  &int_reason);
+
+		/* TODO: Check int_reason */
+
+		wcn36xx_dxe_write_register(wcn,
+					   WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_H);
+
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_ED_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_H);
+		wcn36xx_dbg(WCN36XX_DBG_DXE, "dxe tx ready high\n");
+		reap_tx_dxes(wcn, &wcn->dxe_tx_h_ch);
+	}
+
+	if (int_src & WCN36XX_INT_MASK_CHAN_TX_L) {
+		wcn36xx_dxe_read_register(wcn,
+					  WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_L,
+					  &int_reason);
+		/* TODO: Check int_reason */
+
+		wcn36xx_dxe_write_register(wcn,
+					   WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_L);
+
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_ED_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_L);
+		wcn36xx_dbg(WCN36XX_DBG_DXE, "dxe tx ready low\n");
+		reap_tx_dxes(wcn, &wcn->dxe_tx_l_ch);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t wcn36xx_irq_rx_ready(int irq, void *dev)
+{
+	struct wcn36xx *wcn = (struct wcn36xx *)dev;
+
+	disable_irq_nosync(wcn->rx_irq);
+	wcn36xx_dxe_rx_frame(wcn);
+	enable_irq(wcn->rx_irq);
+	return IRQ_HANDLED;
+}
+
+static int wcn36xx_dxe_request_irqs(struct wcn36xx *wcn)
+{
+	int ret;
+
+	ret = request_irq(wcn->tx_irq, wcn36xx_irq_tx_complete,
+			  IRQF_TRIGGER_HIGH, "wcn36xx_tx", wcn);
+	if (ret) {
+		wcn36xx_err("failed to alloc tx irq\n");
+		goto out_err;
+	}
+
+	ret = request_irq(wcn->rx_irq, wcn36xx_irq_rx_ready, IRQF_TRIGGER_HIGH,
+			  "wcn36xx_rx", wcn);
+	if (ret) {
+		wcn36xx_err("failed to alloc rx irq\n");
+		goto out_txirq;
+	}
+
+	enable_irq_wake(wcn->rx_irq);
+
+	return 0;
+
+out_txirq:
+	free_irq(wcn->tx_irq, wcn);
+out_err:
+	return ret;
+
+}
+
+static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
+				     struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *ctl = ch->head_blk_ctl;
+	struct wcn36xx_dxe_desc *dxe = ctl->desc;
+	dma_addr_t  dma_addr;
+	struct sk_buff *skb;
+
+	while (!(dxe->ctrl & WCN36XX_DXE_CTRL_VALID_MASK)) {
+		skb = ctl->skb;
+		dma_addr = dxe->dst_addr_l;
+		wcn36xx_dxe_fill_skb(ctl);
+
+		switch (ch->ch_type) {
+		case WCN36XX_DXE_CH_RX_L:
+			dxe->ctrl = WCN36XX_DXE_CTRL_RX_L;
+			wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_ENCH_ADDR,
+						   WCN36XX_DXE_INT_CH1_MASK);
+			break;
+		case WCN36XX_DXE_CH_RX_H:
+			dxe->ctrl = WCN36XX_DXE_CTRL_RX_H;
+			wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_ENCH_ADDR,
+						   WCN36XX_DXE_INT_CH3_MASK);
+			break;
+		default:
+			wcn36xx_warn("Unknown channel\n");
+		}
+
+		dma_unmap_single(NULL, dma_addr, WCN36XX_PKT_SIZE,
+				 DMA_FROM_DEVICE);
+		wcn36xx_rx_skb(wcn, skb);
+		ctl = ctl->next;
+		dxe = ctl->desc;
+	}
+
+	ch->head_blk_ctl = ctl;
+
+	return 0;
+}
+
+void wcn36xx_dxe_rx_frame(struct wcn36xx *wcn)
+{
+	int int_src;
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_INT_SRC_RAW_REG, &int_src);
+
+	/* RX_LOW_PRI */
+	if (int_src & WCN36XX_DXE_INT_CH1_MASK) {
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_DXE_INT_CH1_MASK);
+		wcn36xx_rx_handle_packets(wcn, &(wcn->dxe_rx_l_ch));
+	}
+
+	/* RX_HIGH_PRI */
+	if (int_src & WCN36XX_DXE_INT_CH3_MASK) {
+		/* Clean up all the INT within this channel */
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_DXE_INT_CH3_MASK);
+		wcn36xx_rx_handle_packets(wcn, &(wcn->dxe_rx_h_ch));
+	}
+
+	if (!int_src)
+		wcn36xx_warn("No DXE interrupt pending\n");
+}
+
+int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn)
+{
+	size_t s;
+	void *cpu_addr;
+
+	/* Allocate BD headers for MGMT frames */
+
+	/* Where this come from ask QC */
+	wcn->mgmt_mem_pool.chunk_size =	WCN36XX_BD_CHUNK_SIZE +
+		16 - (WCN36XX_BD_CHUNK_SIZE % 8);
+
+	s = wcn->mgmt_mem_pool.chunk_size * WCN36XX_DXE_CH_DESC_NUMB_TX_H;
+	cpu_addr = dma_alloc_coherent(NULL, s, &wcn->mgmt_mem_pool.phy_addr,
+				      GFP_KERNEL);
+	if (!cpu_addr)
+		goto out_err;
+
+	wcn->mgmt_mem_pool.virt_addr = cpu_addr;
+	memset(cpu_addr, 0, s);
+
+	/* Allocate BD headers for DATA frames */
+
+	/* Where this come from ask QC */
+	wcn->data_mem_pool.chunk_size = WCN36XX_BD_CHUNK_SIZE +
+		16 - (WCN36XX_BD_CHUNK_SIZE % 8);
+
+	s = wcn->data_mem_pool.chunk_size * WCN36XX_DXE_CH_DESC_NUMB_TX_L;
+	cpu_addr = dma_alloc_coherent(NULL, s, &wcn->data_mem_pool.phy_addr,
+				      GFP_KERNEL);
+	if (!cpu_addr)
+		goto out_err;
+
+	wcn->data_mem_pool.virt_addr = cpu_addr;
+	memset(cpu_addr, 0, s);
+
+	return 0;
+
+out_err:
+	wcn36xx_dxe_free_mem_pools(wcn);
+	wcn36xx_err("Failed to allocate BD mempool\n");
+	return -ENOMEM;
+}
+
+void wcn36xx_dxe_free_mem_pools(struct wcn36xx *wcn)
+{
+	if (wcn->mgmt_mem_pool.virt_addr)
+		dma_free_coherent(NULL, wcn->mgmt_mem_pool.chunk_size *
+				  WCN36XX_DXE_CH_DESC_NUMB_TX_H,
+				  wcn->mgmt_mem_pool.virt_addr,
+				  wcn->mgmt_mem_pool.phy_addr);
+
+	if (wcn->data_mem_pool.virt_addr) {
+		dma_free_coherent(NULL, wcn->data_mem_pool.chunk_size *
+				  WCN36XX_DXE_CH_DESC_NUMB_TX_L,
+				  wcn->data_mem_pool.virt_addr,
+				  wcn->data_mem_pool.phy_addr);
+	}
+}
+
+int wcn36xx_dxe_tx_frame(struct wcn36xx *wcn,
+			 struct wcn36xx_vif *vif_priv,
+			 struct sk_buff *skb,
+			 bool is_low)
+{
+	struct wcn36xx_dxe_ctl *ctl = NULL;
+	struct wcn36xx_dxe_desc *desc = NULL;
+	struct wcn36xx_dxe_ch *ch = NULL;
+	unsigned long flags;
+
+	ch = is_low ? &wcn->dxe_tx_l_ch : &wcn->dxe_tx_h_ch;
+
+	ctl = ch->head_blk_ctl;
+
+	spin_lock_irqsave(&ctl->next->skb_lock, flags);
+
+	/*
+	 * If skb is not null that means that we reached the tail of the ring
+	 * hence ring is full. Stop queues to let mac80211 back off until ring
+	 * has an empty slot again.
+	 */
+	if (NULL != ctl->next->skb) {
+		ieee80211_stop_queues(wcn->hw);
+		wcn->queues_stopped = true;
+		spin_unlock_irqrestore(&ctl->next->skb_lock, flags);
+		return -EBUSY;
+	}
+	spin_unlock_irqrestore(&ctl->next->skb_lock, flags);
+
+	ctl->skb = NULL;
+	desc = ctl->desc;
+
+	/* Set source address of the BD we send */
+	desc->src_addr_l = ctl->bd_phy_addr;
+
+	desc->dst_addr_l = ch->dxe_wq;
+	desc->fr_len = sizeof(struct wcn36xx_tx_bd);
+	desc->ctrl = ch->ctrl_bd;
+
+	wcn36xx_dbg(WCN36XX_DBG_DXE, "DXE TX\n");
+
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP, "DESC1 >>> ",
+			 (char *)desc, sizeof(*desc));
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP,
+			 "BD   >>> ", (char *)ctl->bd_cpu_addr,
+			 sizeof(struct wcn36xx_tx_bd));
+
+	/* Set source address of the SKB we send */
+	ctl = ctl->next;
+	ctl->skb = skb;
+	desc = ctl->desc;
+	if (ctl->bd_cpu_addr) {
+		wcn36xx_err("bd_cpu_addr cannot be NULL for skb DXE\n");
+		return -EINVAL;
+	}
+
+	desc->src_addr_l = dma_map_single(NULL,
+					  ctl->skb->data,
+					  ctl->skb->len,
+					  DMA_TO_DEVICE);
+
+	desc->dst_addr_l = ch->dxe_wq;
+	desc->fr_len = ctl->skb->len;
+
+	/* set dxe descriptor to VALID */
+	desc->ctrl = ch->ctrl_skb;
+
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP, "DESC2 >>> ",
+			 (char *)desc, sizeof(*desc));
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP, "SKB   >>> ",
+			 (char *)ctl->skb->data, ctl->skb->len);
+
+	/* Move the head of the ring to the next empty descriptor */
+	 ch->head_blk_ctl = ctl->next;
+
+	/*
+	 * When connected and trying to send data frame chip can be in sleep
+	 * mode and writing to the register will not wake up the chip. Instead
+	 * notify chip about new frame through SMSM bus.
+	 */
+	if (is_low &&  vif_priv->pw_state == WCN36XX_BMPS) {
+		wcn->ctrl_ops->smsm_change_state(
+				  0,
+				  WCN36XX_SMSM_WLAN_TX_ENABLE);
+	} else {
+		/* indicate End Of Packet and generate interrupt on descriptor
+		 * done.
+		 */
+		wcn36xx_dxe_write_register(wcn,
+			ch->reg_ctrl, ch->def_ctrl);
+	}
+
+	return 0;
+}
+
+int wcn36xx_dxe_init(struct wcn36xx *wcn)
+{
+	int reg_data = 0, ret;
+
+	reg_data = WCN36XX_DXE_REG_RESET;
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_REG_CSR_RESET, reg_data);
+
+	/* Setting interrupt path */
+	reg_data = WCN36XX_DXE_CCU_INT;
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_REG_CCU_INT, reg_data);
+
+	/***************************************/
+	/* Init descriptors for TX LOW channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_tx_l_ch);
+	wcn36xx_dxe_init_tx_bd(&wcn->dxe_tx_l_ch, &wcn->data_mem_pool);
+
+	/* Write channel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_L,
+		wcn->dxe_tx_l_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Program DMA destination addr for TX LOW */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_TX_L,
+		WCN36XX_DXE_WQ_TX_L);
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_REG_CH_EN, &reg_data);
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_L);
+
+	/***************************************/
+	/* Init descriptors for TX HIGH channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_tx_h_ch);
+	wcn36xx_dxe_init_tx_bd(&wcn->dxe_tx_h_ch, &wcn->mgmt_mem_pool);
+
+	/* Write channel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_H,
+		wcn->dxe_tx_h_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Program DMA destination addr for TX HIGH */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_TX_H,
+		WCN36XX_DXE_WQ_TX_H);
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_REG_CH_EN, &reg_data);
+
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_H);
+
+	/***************************************/
+	/* Init descriptors for RX LOW channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_rx_l_ch);
+
+	/* For RX we need to preallocated buffers */
+	wcn36xx_dxe_ch_alloc_skb(wcn, &wcn->dxe_rx_l_ch);
+
+	/* Write channel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_L,
+		wcn->dxe_rx_l_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Write DMA source address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_SRC_ADDR_RX_L,
+		WCN36XX_DXE_WQ_RX_L);
+
+	/* Program preallocated destination address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_RX_L,
+		wcn->dxe_rx_l_ch.head_blk_ctl->desc->phy_next_l);
+
+	/* Enable default control registers */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_REG_CTL_RX_L,
+		WCN36XX_DXE_CH_DEFAULT_CTL_RX_L);
+
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_L);
+
+	/***************************************/
+	/* Init descriptors for RX HIGH channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_rx_h_ch);
+
+	/* For RX we need to prealocat buffers */
+	wcn36xx_dxe_ch_alloc_skb(wcn, &wcn->dxe_rx_h_ch);
+
+	/* Write chanel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_H,
+		wcn->dxe_rx_h_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Write DMA source address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_SRC_ADDR_RX_H,
+		WCN36XX_DXE_WQ_RX_H);
+
+	/* Program preallocated destination address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_RX_H,
+		 wcn->dxe_rx_h_ch.head_blk_ctl->desc->phy_next_l);
+
+	/* Enable default control registers */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_REG_CTL_RX_H,
+		WCN36XX_DXE_CH_DEFAULT_CTL_RX_H);
+
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_H);
+
+	ret = wcn36xx_dxe_request_irqs(wcn);
+	if (ret < 0)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	return ret;
+}
+
+void wcn36xx_dxe_deinit(struct wcn36xx *wcn)
+{
+	free_irq(wcn->tx_irq, wcn);
+	free_irq(wcn->rx_irq, wcn);
+
+	if (wcn->tx_ack_skb) {
+		ieee80211_tx_status_irqsafe(wcn->hw, wcn->tx_ack_skb);
+		wcn->tx_ack_skb = NULL;
+	}
+
+	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_l_ch);
+	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_h_ch);
+}

drivers/net/wireless/ath/wcn36xx/dxe.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DXE_H_
+#define _DXE_H_
+
+#include "wcn36xx.h"
+
+/*
+TX_LOW	= DMA0
+TX_HIGH	= DMA4
+RX_LOW	= DMA1
+RX_HIGH	= DMA3
+H2H_TEST_RX_TX = DMA2
+*/
+
+/* DXE registers */
+#define WCN36XX_DXE_MEM_BASE			0x03000000
+#define WCN36XX_DXE_MEM_REG			0x202000
+
+#define WCN36XX_DXE_CCU_INT			0xA0011
+#define WCN36XX_DXE_REG_CCU_INT			0x200b10
+
+/* TODO This must calculated properly but not hardcoded */
+#define WCN36XX_DXE_CTRL_TX_L			0x328a44
+#define WCN36XX_DXE_CTRL_TX_H			0x32ce44
+#define WCN36XX_DXE_CTRL_RX_L			0x12ad2f
+#define WCN36XX_DXE_CTRL_RX_H			0x12d12f
+#define WCN36XX_DXE_CTRL_TX_H_BD		0x30ce45
+#define WCN36XX_DXE_CTRL_TX_H_SKB		0x32ce4d
+#define WCN36XX_DXE_CTRL_TX_L_BD		0x308a45
+#define WCN36XX_DXE_CTRL_TX_L_SKB		0x328a4d
+
+/* TODO This must calculated properly but not hardcoded */
+#define WCN36XX_DXE_WQ_TX_L			0x17
+#define WCN36XX_DXE_WQ_TX_H			0x17
+#define WCN36XX_DXE_WQ_RX_L			0xB
+#define WCN36XX_DXE_WQ_RX_H			0x4
+
+/* DXE descriptor control filed */
+#define WCN36XX_DXE_CTRL_VALID_MASK (0x00000001)
+
+/* TODO This must calculated properly but not hardcoded */
+/* DXE default control register values */
+#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_L		0x847EAD2F
+#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_H		0x84FED12F
+#define WCN36XX_DXE_CH_DEFAULT_CTL_TX_H		0x853ECF4D
+#define WCN36XX_DXE_CH_DEFAULT_CTL_TX_L		0x843e8b4d
+
+/* Common DXE registers */
+#define WCN36XX_DXE_MEM_CSR			(WCN36XX_DXE_MEM_REG + 0x00)
+#define WCN36XX_DXE_REG_CSR_RESET		(WCN36XX_DXE_MEM_REG + 0x00)
+#define WCN36XX_DXE_ENCH_ADDR			(WCN36XX_DXE_MEM_REG + 0x04)
+#define WCN36XX_DXE_REG_CH_EN			(WCN36XX_DXE_MEM_REG + 0x08)
+#define WCN36XX_DXE_REG_CH_DONE			(WCN36XX_DXE_MEM_REG + 0x0C)
+#define WCN36XX_DXE_REG_CH_ERR			(WCN36XX_DXE_MEM_REG + 0x10)
+#define WCN36XX_DXE_INT_MASK_REG		(WCN36XX_DXE_MEM_REG + 0x18)
+#define WCN36XX_DXE_INT_SRC_RAW_REG		(WCN36XX_DXE_MEM_REG + 0x20)
+	/* #define WCN36XX_DXE_INT_CH6_MASK	0x00000040 */
+	/* #define WCN36XX_DXE_INT_CH5_MASK	0x00000020 */
+	#define WCN36XX_DXE_INT_CH4_MASK	0x00000010
+	#define WCN36XX_DXE_INT_CH3_MASK	0x00000008
+	/* #define WCN36XX_DXE_INT_CH2_MASK	0x00000004 */
+	#define WCN36XX_DXE_INT_CH1_MASK	0x00000002
+	#define WCN36XX_DXE_INT_CH0_MASK	0x00000001
+#define WCN36XX_DXE_0_INT_CLR			(WCN36XX_DXE_MEM_REG + 0x30)
+#define WCN36XX_DXE_0_INT_ED_CLR		(WCN36XX_DXE_MEM_REG + 0x34)
+#define WCN36XX_DXE_0_INT_DONE_CLR		(WCN36XX_DXE_MEM_REG + 0x38)
+#define WCN36XX_DXE_0_INT_ERR_CLR		(WCN36XX_DXE_MEM_REG + 0x3C)
+
+#define WCN36XX_DXE_0_CH0_STATUS		(WCN36XX_DXE_MEM_REG + 0x404)
+#define WCN36XX_DXE_0_CH1_STATUS		(WCN36XX_DXE_MEM_REG + 0x444)
+#define WCN36XX_DXE_0_CH2_STATUS		(WCN36XX_DXE_MEM_REG + 0x484)
+#define WCN36XX_DXE_0_CH3_STATUS		(WCN36XX_DXE_MEM_REG + 0x4C4)
+#define WCN36XX_DXE_0_CH4_STATUS		(WCN36XX_DXE_MEM_REG + 0x504)
+
+#define WCN36XX_DXE_REG_RESET			0x5c89
+
+/* Temporary BMU Workqueue 4 */
+#define WCN36XX_DXE_BMU_WQ_RX_LOW		0xB
+#define WCN36XX_DXE_BMU_WQ_RX_HIGH		0x4
+/* DMA channel offset */
+#define WCN36XX_DXE_TX_LOW_OFFSET		0x400
+#define WCN36XX_DXE_TX_HIGH_OFFSET		0x500
+#define WCN36XX_DXE_RX_LOW_OFFSET		0x440
+#define WCN36XX_DXE_RX_HIGH_OFFSET		0x4C0
+
+/* Address of the next DXE descriptor */
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR		0x001C
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+
+/* DXE Descriptor source address */
+#define WCN36XX_DXE_CH_SRC_ADDR			0x000C
+#define WCN36XX_DXE_CH_SRC_ADDR_RX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_SRC_ADDR)
+#define WCN36XX_DXE_CH_SRC_ADDR_RX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_SRC_ADDR)
+
+/* DXE Descriptor address destination address */
+#define WCN36XX_DXE_CH_DEST_ADDR		0x0014
+#define WCN36XX_DXE_CH_DEST_ADDR_TX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+#define WCN36XX_DXE_CH_DEST_ADDR_TX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+#define WCN36XX_DXE_CH_DEST_ADDR_RX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+#define WCN36XX_DXE_CH_DEST_ADDR_RX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+
+/* Interrupt status */
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR		0x0004
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+
+
+/* DXE default control register */
+#define WCN36XX_DXE_REG_CTL_RX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET)
+#define WCN36XX_DXE_REG_CTL_RX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET)
+#define WCN36XX_DXE_REG_CTL_TX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET)
+#define WCN36XX_DXE_REG_CTL_TX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET)
+
+#define WCN36XX_SMSM_WLAN_TX_ENABLE		0x00000400
+#define WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY	0x00000200
+
+
+/* Interrupt control channel mask */
+#define WCN36XX_INT_MASK_CHAN_TX_L		0x00000001
+#define WCN36XX_INT_MASK_CHAN_RX_L		0x00000002
+#define WCN36XX_INT_MASK_CHAN_RX_H		0x00000008
+#define WCN36XX_INT_MASK_CHAN_TX_H		0x00000010
+
+#define WCN36XX_BD_CHUNK_SIZE			128
+
+#define WCN36XX_PKT_SIZE			0xF20
+enum wcn36xx_dxe_ch_type {
+	WCN36XX_DXE_CH_TX_L,
+	WCN36XX_DXE_CH_TX_H,
+	WCN36XX_DXE_CH_RX_L,
+	WCN36XX_DXE_CH_RX_H
+};
+
+/* amount of descriptors per channel */
+enum wcn36xx_dxe_ch_desc_num {
+	WCN36XX_DXE_CH_DESC_NUMB_TX_L		= 128,
+	WCN36XX_DXE_CH_DESC_NUMB_TX_H		= 10,
+	WCN36XX_DXE_CH_DESC_NUMB_RX_L		= 512,
+	WCN36XX_DXE_CH_DESC_NUMB_RX_H		= 40
+};
+
+/**
+ * struct wcn36xx_dxe_desc - describes descriptor of one DXE buffer
+ *
+ * @ctrl: is a union that consists of following bits:
+ * union {
+ *	u32	valid		:1; //0 = DMA stop, 1 = DMA continue with this
+ *				    //descriptor
+ *	u32	transfer_type	:2; //0 = Host to Host space
+ *	u32	eop		:1; //End of Packet
+ *	u32	bd_handling	:1; //if transferType = Host to BMU, then 0
+ *				    // means first 128 bytes contain BD, and 1
+ *				    // means create new empty BD
+ *	u32	siq		:1; // SIQ
+ *	u32	diq		:1; // DIQ
+ *	u32	pdu_rel		:1; //0 = don't release BD and PDUs when done,
+ *				    // 1 = release them
+ *	u32	bthld_sel	:4; //BMU Threshold Select
+ *	u32	prio		:3; //Specifies the priority level to use for
+ *				    // the transfer
+ *	u32	stop_channel	:1; //1 = DMA stops processing further, channel
+ *				    //requires re-enabling after this
+ *	u32	intr		:1; //Interrupt on Descriptor Done
+ *	u32	rsvd		:1; //reserved
+ *	u32	size		:14;//14 bits used - ignored for BMU transfers,
+ *				    //only used for host to host transfers?
+ * } ctrl;
+ */
+struct wcn36xx_dxe_desc {
+	u32	ctrl;
+	u32	fr_len;
+
+	u32	src_addr_l;
+	u32	dst_addr_l;
+	u32	phy_next_l;
+	u32	src_addr_h;
+	u32	dst_addr_h;
+	u32	phy_next_h;
+} __packed;
+
+/* DXE Control block */
+struct wcn36xx_dxe_ctl {
+	struct wcn36xx_dxe_ctl	*next;
+	struct wcn36xx_dxe_desc	*desc;
+	unsigned int		desc_phy_addr;
+	int			ctl_blk_order;
+	struct sk_buff		*skb;
+	spinlock_t              skb_lock;
+	void			*bd_cpu_addr;
+	dma_addr_t		bd_phy_addr;
+};
+
+struct wcn36xx_dxe_ch {
+	enum wcn36xx_dxe_ch_type	ch_type;
+	void				*cpu_addr;
+	dma_addr_t			dma_addr;
+	enum wcn36xx_dxe_ch_desc_num	desc_num;
+	/* DXE control block ring */
+	struct wcn36xx_dxe_ctl		*head_blk_ctl;
+	struct wcn36xx_dxe_ctl		*tail_blk_ctl;
+
+	/* DXE channel specific configs */
+	u32				dxe_wq;
+	u32				ctrl_bd;
+	u32				ctrl_skb;
+	u32				reg_ctrl;
+	u32				def_ctrl;
+};
+
+/* Memory Pool for BD headers */
+struct wcn36xx_dxe_mem_pool {
+	int		chunk_size;
+	void		*virt_addr;
+	dma_addr_t	phy_addr;
+};
+
+struct wcn36xx_vif;
+int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn);
+void wcn36xx_dxe_free_mem_pools(struct wcn36xx *wcn);
+void wcn36xx_dxe_rx_frame(struct wcn36xx *wcn);
+int wcn36xx_dxe_alloc_ctl_blks(struct wcn36xx *wcn);
+void wcn36xx_dxe_free_ctl_blks(struct wcn36xx *wcn);
+int wcn36xx_dxe_init(struct wcn36xx *wcn);
+void wcn36xx_dxe_deinit(struct wcn36xx *wcn);
+int wcn36xx_dxe_init_channels(struct wcn36xx *wcn);
+int wcn36xx_dxe_tx_frame(struct wcn36xx *wcn,
+			 struct wcn36xx_vif *vif_priv,
+			 struct sk_buff *skb,
+			 bool is_low);
+void wcn36xx_dxe_tx_ack_ind(struct wcn36xx *wcn, u32 status);
+void *wcn36xx_dxe_get_next_bd(struct wcn36xx *wcn, bool is_low);
+#endif	/* _DXE_H_ */

drivers/net/wireless/ath/wcn36xx/hal.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HAL_H_
+#define _HAL_H_
+
+/*---------------------------------------------------------------------------
+  API VERSIONING INFORMATION
+
+  The RIVA API is versioned as MAJOR.MINOR.VERSION.REVISION
+  The MAJOR is incremented for major product/architecture changes
+      (and then MINOR/VERSION/REVISION are zeroed)
+  The MINOR is incremented for minor product/architecture changes
+      (and then VERSION/REVISION are zeroed)
+  The VERSION is incremented if a significant API change occurs
+      (and then REVISION is zeroed)
+  The REVISION is incremented if an insignificant API change occurs
+      or if a new API is added
+  All values are in the range 0..255 (ie they are 8-bit values)
+ ---------------------------------------------------------------------------*/
+#define WCN36XX_HAL_VER_MAJOR 1
+#define WCN36XX_HAL_VER_MINOR 4
+#define WCN36XX_HAL_VER_VERSION 1
+#define WCN36XX_HAL_VER_REVISION 2
+
+/* This is to force compiler to use the maximum of an int ( 4 bytes ) */
+#define WCN36XX_HAL_MAX_ENUM_SIZE    0x7FFFFFFF
+#define WCN36XX_HAL_MSG_TYPE_MAX_ENUM_SIZE    0x7FFF
+
+/* Max no. of transmit categories */
+#define STACFG_MAX_TC    8
+
+/* The maximum value of access category */
+#define WCN36XX_HAL_MAX_AC  4
+
+#define WCN36XX_HAL_IPV4_ADDR_LEN       4
+
+#define WALN_HAL_STA_INVALID_IDX 0xFF
+#define WCN36XX_HAL_BSS_INVALID_IDX 0xFF
+
+/* Default Beacon template size */
+#define BEACON_TEMPLATE_SIZE 0x180
+
+/* Param Change Bitmap sent to HAL */
+#define PARAM_BCN_INTERVAL_CHANGED                      (1 << 0)
+#define PARAM_SHORT_PREAMBLE_CHANGED                 (1 << 1)
+#define PARAM_SHORT_SLOT_TIME_CHANGED                 (1 << 2)
+#define PARAM_llACOEXIST_CHANGED                            (1 << 3)
+#define PARAM_llBCOEXIST_CHANGED                            (1 << 4)
+#define PARAM_llGCOEXIST_CHANGED                            (1 << 5)
+#define PARAM_HT20MHZCOEXIST_CHANGED                  (1<<6)
+#define PARAM_NON_GF_DEVICES_PRESENT_CHANGED (1<<7)
+#define PARAM_RIFS_MODE_CHANGED                            (1<<8)
+#define PARAM_LSIG_TXOP_FULL_SUPPORT_CHANGED   (1<<9)
+#define PARAM_OBSS_MODE_CHANGED                               (1<<10)
+#define PARAM_BEACON_UPDATE_MASK \
+	(PARAM_BCN_INTERVAL_CHANGED |					\
+	 PARAM_SHORT_PREAMBLE_CHANGED |					\
+	 PARAM_SHORT_SLOT_TIME_CHANGED |				\
+	 PARAM_llACOEXIST_CHANGED |					\
+	 PARAM_llBCOEXIST_CHANGED |					\
+	 PARAM_llGCOEXIST_CHANGED |					\
+	 PARAM_HT20MHZCOEXIST_CHANGED |					\
+	 PARAM_NON_GF_DEVICES_PRESENT_CHANGED |				\
+	 PARAM_RIFS_MODE_CHANGED |					\
+	 PARAM_LSIG_TXOP_FULL_SUPPORT_CHANGED |				\
+	 PARAM_OBSS_MODE_CHANGED)
+
+/* dump command response Buffer size */
+#define DUMPCMD_RSP_BUFFER 100
+
+/* version string max length (including NULL) */
+#define WCN36XX_HAL_VERSION_LENGTH  64
+
+/* message types for messages exchanged between WDI and HAL */
+enum wcn36xx_hal_host_msg_type {
+	/* Init/De-Init */
+	WCN36XX_HAL_START_REQ = 0,
+	WCN36XX_HAL_START_RSP = 1,
+	WCN36XX_HAL_STOP_REQ = 2,
+	WCN36XX_HAL_STOP_RSP = 3,
+
+	/* Scan */
+	WCN36XX_HAL_INIT_SCAN_REQ = 4,
+	WCN36XX_HAL_INIT_SCAN_RSP = 5,
+	WCN36XX_HAL_START_SCAN_REQ = 6,
+	WCN36XX_HAL_START_SCAN_RSP = 7,
+	WCN36XX_HAL_END_SCAN_REQ = 8,
+	WCN36XX_HAL_END_SCAN_RSP = 9,
+	WCN36XX_HAL_FINISH_SCAN_REQ = 10,
+	WCN36XX_HAL_FINISH_SCAN_RSP = 11,
+
+	/* HW STA configuration/deconfiguration */
+	WCN36XX_HAL_CONFIG_STA_REQ = 12,
+	WCN36XX_HAL_CONFIG_STA_RSP = 13,
+	WCN36XX_HAL_DELETE_STA_REQ = 14,
+	WCN36XX_HAL_DELETE_STA_RSP = 15,
+	WCN36XX_HAL_CONFIG_BSS_REQ = 16,
+	WCN36XX_HAL_CONFIG_BSS_RSP = 17,
+	WCN36XX_HAL_DELETE_BSS_REQ = 18,
+	WCN36XX_HAL_DELETE_BSS_RSP = 19,
+
+	/* Infra STA asscoiation */
+	WCN36XX_HAL_JOIN_REQ = 20,
+	WCN36XX_HAL_JOIN_RSP = 21,
+	WCN36XX_HAL_POST_ASSOC_REQ = 22,
+	WCN36XX_HAL_POST_ASSOC_RSP = 23,
+
+	/* Security */
+	WCN36XX_HAL_SET_BSSKEY_REQ = 24,
+	WCN36XX_HAL_SET_BSSKEY_RSP = 25,
+	WCN36XX_HAL_SET_STAKEY_REQ = 26,
+	WCN36XX_HAL_SET_STAKEY_RSP = 27,
+	WCN36XX_HAL_RMV_BSSKEY_REQ = 28,
+	WCN36XX_HAL_RMV_BSSKEY_RSP = 29,
+	WCN36XX_HAL_RMV_STAKEY_REQ = 30,
+	WCN36XX_HAL_RMV_STAKEY_RSP = 31,
+
+	/* Qos Related */
+	WCN36XX_HAL_ADD_TS_REQ = 32,
+	WCN36XX_HAL_ADD_TS_RSP = 33,
+	WCN36XX_HAL_DEL_TS_REQ = 34,
+	WCN36XX_HAL_DEL_TS_RSP = 35,
+	WCN36XX_HAL_UPD_EDCA_PARAMS_REQ = 36,
+	WCN36XX_HAL_UPD_EDCA_PARAMS_RSP = 37,
+	WCN36XX_HAL_ADD_BA_REQ = 38,
+	WCN36XX_HAL_ADD_BA_RSP = 39,
+	WCN36XX_HAL_DEL_BA_REQ = 40,
+	WCN36XX_HAL_DEL_BA_RSP = 41,
+
+	WCN36XX_HAL_CH_SWITCH_REQ = 42,
+	WCN36XX_HAL_CH_SWITCH_RSP = 43,
+	WCN36XX_HAL_SET_LINK_ST_REQ = 44,
+	WCN36XX_HAL_SET_LINK_ST_RSP = 45,
+	WCN36XX_HAL_GET_STATS_REQ = 46,
+	WCN36XX_HAL_GET_STATS_RSP = 47,
+	WCN36XX_HAL_UPDATE_CFG_REQ = 48,
+	WCN36XX_HAL_UPDATE_CFG_RSP = 49,
+
+	WCN36XX_HAL_MISSED_BEACON_IND = 50,
+	WCN36XX_HAL_UNKNOWN_ADDR2_FRAME_RX_IND = 51,
+	WCN36XX_HAL_MIC_FAILURE_IND = 52,
+	WCN36XX_HAL_FATAL_ERROR_IND = 53,
+	WCN36XX_HAL_SET_KEYDONE_MSG = 54,
+
+	/* NV Interface */
+	WCN36XX_HAL_DOWNLOAD_NV_REQ = 55,
+	WCN36XX_HAL_DOWNLOAD_NV_RSP = 56,
+
+	WCN36XX_HAL_ADD_BA_SESSION_REQ = 57,
+	WCN36XX_HAL_ADD_BA_SESSION_RSP = 58,
+	WCN36XX_HAL_TRIGGER_BA_REQ = 59,
+	WCN36XX_HAL_TRIGGER_BA_RSP = 60,
+	WCN36XX_HAL_UPDATE_BEACON_REQ = 61,
+	WCN36XX_HAL_UPDATE_BEACON_RSP = 62,
+	WCN36XX_HAL_SEND_BEACON_REQ = 63,
+	WCN36XX_HAL_SEND_BEACON_RSP = 64,
+
+	WCN36XX_HAL_SET_BCASTKEY_REQ = 65,
+	WCN36XX_HAL_SET_BCASTKEY_RSP = 66,
+	WCN36XX_HAL_DELETE_STA_CONTEXT_IND = 67,
+	WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_REQ = 68,
+	WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_RSP = 69,
+
+	/* PTT interface support */
+	WCN36XX_HAL_PROCESS_PTT_REQ = 70,
+	WCN36XX_HAL_PROCESS_PTT_RSP = 71,
+
+	/* BTAMP related events */
+	WCN36XX_HAL_SIGNAL_BTAMP_EVENT_REQ = 72,
+	WCN36XX_HAL_SIGNAL_BTAMP_EVENT_RSP = 73,
+	WCN36XX_HAL_TL_HAL_FLUSH_AC_REQ = 74,
+	WCN36XX_HAL_TL_HAL_FLUSH_AC_RSP = 75,
+
+	WCN36XX_HAL_ENTER_IMPS_REQ = 76,
+	WCN36XX_HAL_EXIT_IMPS_REQ = 77,
+	WCN36XX_HAL_ENTER_BMPS_REQ = 78,
+	WCN36XX_HAL_EXIT_BMPS_REQ = 79,
+	WCN36XX_HAL_ENTER_UAPSD_REQ = 80,
+	WCN36XX_HAL_EXIT_UAPSD_REQ = 81,
+	WCN36XX_HAL_UPDATE_UAPSD_PARAM_REQ = 82,
+	WCN36XX_HAL_CONFIGURE_RXP_FILTER_REQ = 83,
+	WCN36XX_HAL_ADD_BCN_FILTER_REQ = 84,
+	WCN36XX_HAL_REM_BCN_FILTER_REQ = 85,
+	WCN36XX_HAL_ADD_WOWL_BCAST_PTRN = 86,
+	WCN36XX_HAL_DEL_WOWL_BCAST_PTRN = 87,
+	WCN36XX_HAL_ENTER_WOWL_REQ = 88,
+	WCN36XX_HAL_EXIT_WOWL_REQ = 89,
+	WCN36XX_HAL_HOST_OFFLOAD_REQ = 90,
+	WCN36XX_HAL_SET_RSSI_THRESH_REQ = 91,
+	WCN36XX_HAL_GET_RSSI_REQ = 92,
+	WCN36XX_HAL_SET_UAPSD_AC_PARAMS_REQ = 93,
+	WCN36XX_HAL_CONFIGURE_APPS_CPU_WAKEUP_STATE_REQ = 94,
+
+	WCN36XX_HAL_ENTER_IMPS_RSP = 95,
+	WCN36XX_HAL_EXIT_IMPS_RSP = 96,
+	WCN36XX_HAL_ENTER_BMPS_RSP = 97,
+	WCN36XX_HAL_EXIT_BMPS_RSP = 98,
+	WCN36XX_HAL_ENTER_UAPSD_RSP = 99,
+	WCN36XX_HAL_EXIT_UAPSD_RSP = 100,
+	WCN36XX_HAL_SET_UAPSD_AC_PARAMS_RSP = 101,
+	WCN36XX_HAL_UPDATE_UAPSD_PARAM_RSP = 102,
+	WCN36XX_HAL_CONFIGURE_RXP_FILTER_RSP = 103,
+	WCN36XX_HAL_ADD_BCN_FILTER_RSP = 104,
+	WCN36XX_HAL_REM_BCN_FILTER_RSP = 105,
+	WCN36XX_HAL_SET_RSSI_THRESH_RSP = 106,
+	WCN36XX_HAL_HOST_OFFLOAD_RSP = 107,
+	WCN36XX_HAL_ADD_WOWL_BCAST_PTRN_RSP = 108,
+	WCN36XX_HAL_DEL_WOWL_BCAST_PTRN_RSP = 109,
+	WCN36XX_HAL_ENTER_WOWL_RSP = 110,
+	WCN36XX_HAL_EXIT_WOWL_RSP = 111,
+	WCN36XX_HAL_RSSI_NOTIFICATION_IND = 112,
+	WCN36XX_HAL_GET_RSSI_RSP = 113,
+	WCN36XX_HAL_CONFIGURE_APPS_CPU_WAKEUP_STATE_RSP = 114,
+
+	/* 11k related events */
+	WCN36XX_HAL_SET_MAX_TX_POWER_REQ = 115,
+	WCN36XX_HAL_SET_MAX_TX_POWER_RSP = 116,
+
+	/* 11R related msgs */
+	WCN36XX_HAL_AGGR_ADD_TS_REQ = 117,
+	WCN36XX_HAL_AGGR_ADD_TS_RSP = 118,
+
+	/* P2P  WLAN_FEATURE_P2P */
+	WCN36XX_HAL_SET_P2P_GONOA_REQ = 119,
+	WCN36XX_HAL_SET_P2P_GONOA_RSP = 120,
+
+	/* WLAN Dump commands */
+	WCN36XX_HAL_DUMP_COMMAND_REQ = 121,
+	WCN36XX_HAL_DUMP_COMMAND_RSP = 122,
+
+	/* OEM_DATA FEATURE SUPPORT */
+	WCN36XX_HAL_START_OEM_DATA_REQ = 123,
+	WCN36XX_HAL_START_OEM_DATA_RSP = 124,
+
+	/* ADD SELF STA REQ and RSP */
+	WCN36XX_HAL_ADD_STA_SELF_REQ = 125,
+	WCN36XX_HAL_ADD_STA_SELF_RSP = 126,
+
+	/* DEL SELF STA SUPPORT */
+	WCN36XX_HAL_DEL_STA_SELF_REQ = 127,
+	WCN36XX_HAL_DEL_STA_SELF_RSP = 128,
+
+	/* Coex Indication */
+	WCN36XX_HAL_COEX_IND = 129,
+
+	/* Tx Complete Indication */
+	WCN36XX_HAL_OTA_TX_COMPL_IND = 130,
+
+	/* Host Suspend/resume messages */
+	WCN36XX_HAL_HOST_SUSPEND_IND = 131,
+	WCN36XX_HAL_HOST_RESUME_REQ = 132,
+	WCN36XX_HAL_HOST_RESUME_RSP = 133,
+
+	WCN36XX_HAL_SET_TX_POWER_REQ = 134,
+	WCN36XX_HAL_SET_TX_POWER_RSP = 135,
+	WCN36XX_HAL_GET_TX_POWER_REQ = 136,
+	WCN36XX_HAL_GET_TX_POWER_RSP = 137,
+
+	WCN36XX_HAL_P2P_NOA_ATTR_IND = 138,
+
+	WCN36XX_HAL_ENABLE_RADAR_DETECT_REQ = 139,
+	WCN36XX_HAL_ENABLE_RADAR_DETECT_RSP = 140,
+	WCN36XX_HAL_GET_TPC_REPORT_REQ = 141,
+	WCN36XX_HAL_GET_TPC_REPORT_RSP = 142,
+	WCN36XX_HAL_RADAR_DETECT_IND = 143,
+	WCN36XX_HAL_RADAR_DETECT_INTR_IND = 144,
+	WCN36XX_HAL_KEEP_ALIVE_REQ = 145,
+	WCN36XX_HAL_KEEP_ALIVE_RSP = 146,
+
+	/* PNO messages */
+	WCN36XX_HAL_SET_PREF_NETWORK_REQ = 147,
+	WCN36XX_HAL_SET_PREF_NETWORK_RSP = 148,
+	WCN36XX_HAL_SET_RSSI_FILTER_REQ = 149,
+	WCN36XX_HAL_SET_RSSI_FILTER_RSP = 150,
+	WCN36XX_HAL_UPDATE_SCAN_PARAM_REQ = 151,
+	WCN36XX_HAL_UPDATE_SCAN_PARAM_RSP = 152,
+	WCN36XX_HAL_PREF_NETW_FOUND_IND = 153,
+
+	WCN36XX_HAL_SET_TX_PER_TRACKING_REQ = 154,
+	WCN36XX_HAL_SET_TX_PER_TRACKING_RSP = 155,
+	WCN36XX_HAL_TX_PER_HIT_IND = 156,
+
+	WCN36XX_HAL_8023_MULTICAST_LIST_REQ = 157,
+	WCN36XX_HAL_8023_MULTICAST_LIST_RSP = 158,
+
+	WCN36XX_HAL_SET_PACKET_FILTER_REQ = 159,
+	WCN36XX_HAL_SET_PACKET_FILTER_RSP = 160,
+	WCN36XX_HAL_PACKET_FILTER_MATCH_COUNT_REQ = 161,
+	WCN36XX_HAL_PACKET_FILTER_MATCH_COUNT_RSP = 162,
+	WCN36XX_HAL_CLEAR_PACKET_FILTER_REQ = 163,
+	WCN36XX_HAL_CLEAR_PACKET_FILTER_RSP = 164,
+
+	/*
+	 * This is temp fix. Should be removed once Host and Riva code is
+	 * in sync.
+	 */
+	WCN36XX_HAL_INIT_SCAN_CON_REQ = 165,
+
+	WCN36XX_HAL_SET_POWER_PARAMS_REQ = 166,
+	WCN36XX_HAL_SET_POWER_PARAMS_RSP = 167,
+
+	WCN36XX_HAL_TSM_STATS_REQ = 168,
+	WCN36XX_HAL_TSM_STATS_RSP = 169,
+
+	/* wake reason indication (WOW) */
+	WCN36XX_HAL_WAKE_REASON_IND = 170,
+
+	/* GTK offload support */
+	WCN36XX_HAL_GTK_OFFLOAD_REQ = 171,
+	WCN36XX_HAL_GTK_OFFLOAD_RSP = 172,
+	WCN36XX_HAL_GTK_OFFLOAD_GETINFO_REQ = 173,
+	WCN36XX_HAL_GTK_OFFLOAD_GETINFO_RSP = 174,
+
+	WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_REQ = 175,
+	WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_RSP = 176,
+	WCN36XX_HAL_EXCLUDE_UNENCRYPTED_IND = 177,
+
+	WCN36XX_HAL_SET_THERMAL_MITIGATION_REQ = 178,
+	WCN36XX_HAL_SET_THERMAL_MITIGATION_RSP = 179,
+
+	WCN36XX_HAL_UPDATE_VHT_OP_MODE_REQ = 182,
+	WCN36XX_HAL_UPDATE_VHT_OP_MODE_RSP = 183,
+
+	WCN36XX_HAL_P2P_NOA_START_IND = 184,
+
+	WCN36XX_HAL_GET_ROAM_RSSI_REQ = 185,
+	WCN36XX_HAL_GET_ROAM_RSSI_RSP = 186,
+
+	WCN36XX_HAL_CLASS_B_STATS_IND = 187,
+	WCN36XX_HAL_DEL_BA_IND = 188,
+	WCN36XX_HAL_DHCP_START_IND = 189,
+	WCN36XX_HAL_DHCP_STOP_IND = 190,
+
+	WCN36XX_HAL_MSG_MAX = WCN36XX_HAL_MSG_TYPE_MAX_ENUM_SIZE
+};
+
+/* Enumeration for Version */
+enum wcn36xx_hal_host_msg_version {
+	WCN36XX_HAL_MSG_VERSION0 = 0,
+	WCN36XX_HAL_MSG_VERSION1 = 1,
+	/* define as 2 bytes data */
+	WCN36XX_HAL_MSG_WCNSS_CTRL_VERSION = 0x7FFF,
+	WCN36XX_HAL_MSG_VERSION_MAX_FIELD = WCN36XX_HAL_MSG_WCNSS_CTRL_VERSION
+};
+
+enum driver_type {
+	DRIVER_TYPE_PRODUCTION = 0,
+	DRIVER_TYPE_MFG = 1,
+	DRIVER_TYPE_DVT = 2,
+	DRIVER_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_stop_type {
+	HAL_STOP_TYPE_SYS_RESET,
+	HAL_STOP_TYPE_SYS_DEEP_SLEEP,
+	HAL_STOP_TYPE_RF_KILL,
+	HAL_STOP_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_sys_mode {
+	HAL_SYS_MODE_NORMAL,
+	HAL_SYS_MODE_LEARN,
+	HAL_SYS_MODE_SCAN,
+	HAL_SYS_MODE_PROMISC,
+	HAL_SYS_MODE_SUSPEND_LINK,
+	HAL_SYS_MODE_ROAM_SCAN,
+	HAL_SYS_MODE_ROAM_SUSPEND_LINK,
+	HAL_SYS_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum phy_chan_bond_state {
+	/* 20MHz IF bandwidth centered on IF carrier */
+	PHY_SINGLE_CHANNEL_CENTERED = 0,
+
+	/* 40MHz IF bandwidth with lower 20MHz supporting the primary channel */
+	PHY_DOUBLE_CHANNEL_LOW_PRIMARY = 1,
+
+	/* 40MHz IF bandwidth centered on IF carrier */
+	PHY_DOUBLE_CHANNEL_CENTERED = 2,
+
+	/* 40MHz IF bandwidth with higher 20MHz supporting the primary ch */
+	PHY_DOUBLE_CHANNEL_HIGH_PRIMARY = 3,
+
+	/* 20/40MHZ offset LOW 40/80MHZ offset CENTERED */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_CENTERED = 4,
+
+	/* 20/40MHZ offset CENTERED 40/80MHZ offset CENTERED */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_CENTERED_40MHZ_CENTERED = 5,
+
+	/* 20/40MHZ offset HIGH 40/80MHZ offset CENTERED */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_CENTERED = 6,
+
+	/* 20/40MHZ offset LOW 40/80MHZ offset LOW */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW = 7,
+
+	/* 20/40MHZ offset HIGH 40/80MHZ offset LOW */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW = 8,
+
+	/* 20/40MHZ offset LOW 40/80MHZ offset HIGH */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH = 9,
+
+	/* 20/40MHZ offset-HIGH 40/80MHZ offset HIGH */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH = 10,
+
+	PHY_CHANNEL_BONDING_STATE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Spatial Multiplexing(SM) Power Save mode */
+enum wcn36xx_hal_ht_mimo_state {
+	/* Static SM Power Save mode */
+	WCN36XX_HAL_HT_MIMO_PS_STATIC = 0,
+
+	/* Dynamic SM Power Save mode */
+	WCN36XX_HAL_HT_MIMO_PS_DYNAMIC = 1,
+
+	/* reserved */
+	WCN36XX_HAL_HT_MIMO_PS_NA = 2,
+
+	/* SM Power Save disabled */
+	WCN36XX_HAL_HT_MIMO_PS_NO_LIMIT = 3,
+
+	WCN36XX_HAL_HT_MIMO_PS_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* each station added has a rate mode which specifies the sta attributes */
+enum sta_rate_mode {
+	STA_TAURUS = 0,
+	STA_TITAN,
+	STA_POLARIS,
+	STA_11b,
+	STA_11bg,
+	STA_11a,
+	STA_11n,
+	STA_11ac,
+	STA_INVALID_RATE_MODE = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* 1,2,5.5,11 */
+#define WCN36XX_HAL_NUM_DSSS_RATES           4
+
+/* 6,9,12,18,24,36,48,54 */
+#define WCN36XX_HAL_NUM_OFDM_RATES           8
+
+/* 72,96,108 */
+#define WCN36XX_HAL_NUM_POLARIS_RATES       3
+
+#define WCN36XX_HAL_MAC_MAX_SUPPORTED_MCS_SET    16
+
+enum wcn36xx_hal_bss_type {
+	WCN36XX_HAL_INFRASTRUCTURE_MODE,
+
+	/* Added for softAP support */
+	WCN36XX_HAL_INFRA_AP_MODE,
+
+	WCN36XX_HAL_IBSS_MODE,
+
+	/* Added for BT-AMP support */
+	WCN36XX_HAL_BTAMP_STA_MODE,
+
+	/* Added for BT-AMP support */
+	WCN36XX_HAL_BTAMP_AP_MODE,
+
+	WCN36XX_HAL_AUTO_MODE,
+
+	WCN36XX_HAL_DONOT_USE_BSS_TYPE = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_nw_type {
+	WCN36XX_HAL_11A_NW_TYPE,
+	WCN36XX_HAL_11B_NW_TYPE,
+	WCN36XX_HAL_11G_NW_TYPE,
+	WCN36XX_HAL_11N_NW_TYPE,
+	WCN36XX_HAL_DONOT_USE_NW_TYPE = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+#define WCN36XX_HAL_MAC_RATESET_EID_MAX            12
+
+enum wcn36xx_hal_ht_operating_mode {
+	/* No Protection */
+	WCN36XX_HAL_HT_OP_MODE_PURE,
+
+	/* Overlap Legacy device present, protection is optional */
+	WCN36XX_HAL_HT_OP_MODE_OVERLAP_LEGACY,
+
+	/* No legacy device, but 20 MHz HT present */
+	WCN36XX_HAL_HT_OP_MODE_NO_LEGACY_20MHZ_HT,
+
+	/* Protection is required */
+	WCN36XX_HAL_HT_OP_MODE_MIXED,
+
+	WCN36XX_HAL_HT_OP_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Encryption type enum used with peer */
+enum ani_ed_type {
+	WCN36XX_HAL_ED_NONE,
+	WCN36XX_HAL_ED_WEP40,
+	WCN36XX_HAL_ED_WEP104,
+	WCN36XX_HAL_ED_TKIP,
+	WCN36XX_HAL_ED_CCMP,
+	WCN36XX_HAL_ED_WPI,
+	WCN36XX_HAL_ED_AES_128_CMAC,
+	WCN36XX_HAL_ED_NOT_IMPLEMENTED = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+#define WLAN_MAX_KEY_RSC_LEN                16
+#define WLAN_WAPI_KEY_RSC_LEN               16
+
+/* MAX key length when ULA is used */
+#define WCN36XX_HAL_MAC_MAX_KEY_LENGTH              32
+#define WCN36XX_HAL_MAC_MAX_NUM_OF_DEFAULT_KEYS     4
+
+/*
+ * Enum to specify whether key is used for TX only, RX only or both.
+ */
+enum ani_key_direction {
+	WCN36XX_HAL_TX_ONLY,
+	WCN36XX_HAL_RX_ONLY,
+	WCN36XX_HAL_TX_RX,
+	WCN36XX_HAL_TX_DEFAULT,
+	WCN36XX_HAL_DONOT_USE_KEY_DIRECTION = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum ani_wep_type {
+	WCN36XX_HAL_WEP_STATIC,
+	WCN36XX_HAL_WEP_DYNAMIC,
+	WCN36XX_HAL_WEP_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_link_state {
+
+	WCN36XX_HAL_LINK_IDLE_STATE = 0,
+	WCN36XX_HAL_LINK_PREASSOC_STATE = 1,
+	WCN36XX_HAL_LINK_POSTASSOC_STATE = 2,
+	WCN36XX_HAL_LINK_AP_STATE = 3,
+	WCN36XX_HAL_LINK_IBSS_STATE = 4,
+
+	/* BT-AMP Case */
+	WCN36XX_HAL_LINK_BTAMP_PREASSOC_STATE = 5,
+	WCN36XX_HAL_LINK_BTAMP_POSTASSOC_STATE = 6,
+	WCN36XX_HAL_LINK_BTAMP_AP_STATE = 7,
+	WCN36XX_HAL_LINK_BTAMP_STA_STATE = 8,
+
+	/* Reserved for HAL Internal Use */
+	WCN36XX_HAL_LINK_LEARN_STATE = 9,
+	WCN36XX_HAL_LINK_SCAN_STATE = 10,
+	WCN36XX_HAL_LINK_FINISH_SCAN_STATE = 11,
+	WCN36XX_HAL_LINK_INIT_CAL_STATE = 12,
+	WCN36XX_HAL_LINK_FINISH_CAL_STATE = 13,
+	WCN36XX_HAL_LINK_LISTEN_STATE = 14,
+
+	WCN36XX_HAL_LINK_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_stats_mask {
+	HAL_SUMMARY_STATS_INFO = 0x00000001,
+	HAL_GLOBAL_CLASS_A_STATS_INFO = 0x00000002,
+	HAL_GLOBAL_CLASS_B_STATS_INFO = 0x00000004,
+	HAL_GLOBAL_CLASS_C_STATS_INFO = 0x00000008,
+	HAL_GLOBAL_CLASS_D_STATS_INFO = 0x00000010,
+	HAL_PER_STA_STATS_INFO = 0x00000020
+};
+
+/* BT-AMP events type */
+enum bt_amp_event_type {
+	BTAMP_EVENT_CONNECTION_START,
+	BTAMP_EVENT_CONNECTION_STOP,
+	BTAMP_EVENT_CONNECTION_TERMINATED,
+
+	/* This and beyond are invalid values */
+	BTAMP_EVENT_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE,
+};
+
+/* PE Statistics */
+enum pe_stats_mask {
+	PE_SUMMARY_STATS_INFO = 0x00000001,
+	PE_GLOBAL_CLASS_A_STATS_INFO = 0x00000002,
+	PE_GLOBAL_CLASS_B_STATS_INFO = 0x00000004,
+	PE_GLOBAL_CLASS_C_STATS_INFO = 0x00000008,
+	PE_GLOBAL_CLASS_D_STATS_INFO = 0x00000010,
+	PE_PER_STA_STATS_INFO = 0x00000020,
+
+	/* This and beyond are invalid values */
+	PE_STATS_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/*
+ * Configuration Parameter IDs
+ */
+#define WCN36XX_HAL_CFG_STA_ID				0
+#define WCN36XX_HAL_CFG_CURRENT_TX_ANTENNA		1
+#define WCN36XX_HAL_CFG_CURRENT_RX_ANTENNA		2
+#define WCN36XX_HAL_CFG_LOW_GAIN_OVERRIDE		3
+#define WCN36XX_HAL_CFG_POWER_STATE_PER_CHAIN		4
+#define WCN36XX_HAL_CFG_CAL_PERIOD			5
+#define WCN36XX_HAL_CFG_CAL_CONTROL			6
+#define WCN36XX_HAL_CFG_PROXIMITY			7
+#define WCN36XX_HAL_CFG_NETWORK_DENSITY			8
+#define WCN36XX_HAL_CFG_MAX_MEDIUM_TIME			9
+#define WCN36XX_HAL_CFG_MAX_MPDUS_IN_AMPDU		10
+#define WCN36XX_HAL_CFG_RTS_THRESHOLD			11
+#define WCN36XX_HAL_CFG_SHORT_RETRY_LIMIT		12
+#define WCN36XX_HAL_CFG_LONG_RETRY_LIMIT		13
+#define WCN36XX_HAL_CFG_FRAGMENTATION_THRESHOLD		14
+#define WCN36XX_HAL_CFG_DYNAMIC_THRESHOLD_ZERO		15
+#define WCN36XX_HAL_CFG_DYNAMIC_THRESHOLD_ONE		16
+#define WCN36XX_HAL_CFG_DYNAMIC_THRESHOLD_TWO		17
+#define WCN36XX_HAL_CFG_FIXED_RATE			18
+#define WCN36XX_HAL_CFG_RETRYRATE_POLICY		19
+#define WCN36XX_HAL_CFG_RETRYRATE_SECONDARY		20
+#define WCN36XX_HAL_CFG_RETRYRATE_TERTIARY		21
+#define WCN36XX_HAL_CFG_FORCE_POLICY_PROTECTION		22
+#define WCN36XX_HAL_CFG_FIXED_RATE_MULTICAST_24GHZ	23
+#define WCN36XX_HAL_CFG_FIXED_RATE_MULTICAST_5GHZ	24
+#define WCN36XX_HAL_CFG_DEFAULT_RATE_INDEX_24GHZ	25
+#define WCN36XX_HAL_CFG_DEFAULT_RATE_INDEX_5GHZ		26
+#define WCN36XX_HAL_CFG_MAX_BA_SESSIONS			27
+#define WCN36XX_HAL_CFG_PS_DATA_INACTIVITY_TIMEOUT	28
+#define WCN36XX_HAL_CFG_PS_ENABLE_BCN_FILTER		29
+#define WCN36XX_HAL_CFG_PS_ENABLE_RSSI_MONITOR		30
+#define WCN36XX_HAL_CFG_NUM_BEACON_PER_RSSI_AVERAGE	31
+#define WCN36XX_HAL_CFG_STATS_PERIOD			32
+#define WCN36XX_HAL_CFG_CFP_MAX_DURATION		33
+#define WCN36XX_HAL_CFG_FRAME_TRANS_ENABLED		34
+#define WCN36XX_HAL_CFG_DTIM_PERIOD			35
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACBK			36
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACBE			37
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACVO			38
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACVI			39
+#define WCN36XX_HAL_CFG_BA_THRESHOLD_HIGH		40
+#define WCN36XX_HAL_CFG_MAX_BA_BUFFERS			41
+#define WCN36XX_HAL_CFG_RPE_POLLING_THRESHOLD		42
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC0_REG	43
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC1_REG	44
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC2_REG	45
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC3_REG	46
+#define WCN36XX_HAL_CFG_NO_OF_ONCHIP_REORDER_SESSIONS	47
+#define WCN36XX_HAL_CFG_PS_LISTEN_INTERVAL		48
+#define WCN36XX_HAL_CFG_PS_HEART_BEAT_THRESHOLD		49
+#define WCN36XX_HAL_CFG_PS_NTH_BEACON_FILTER		50
+#define WCN36XX_HAL_CFG_PS_MAX_PS_POLL			51
+#define WCN36XX_HAL_CFG_PS_MIN_RSSI_THRESHOLD		52
+#define WCN36XX_HAL_CFG_PS_RSSI_FILTER_PERIOD		53
+#define WCN36XX_HAL_CFG_PS_BROADCAST_FRAME_FILTER_ENABLE 54
+#define WCN36XX_HAL_CFG_PS_IGNORE_DTIM			55
+#define WCN36XX_HAL_CFG_PS_ENABLE_BCN_EARLY_TERM	56
+#define WCN36XX_HAL_CFG_DYNAMIC_PS_POLL_VALUE		57
+#define WCN36XX_HAL_CFG_PS_NULLDATA_AP_RESP_TIMEOUT	58
+#define WCN36XX_HAL_CFG_TELE_BCN_WAKEUP_EN		59
+#define WCN36XX_HAL_CFG_TELE_BCN_TRANS_LI		60
+#define WCN36XX_HAL_CFG_TELE_BCN_TRANS_LI_IDLE_BCNS	61
+#define WCN36XX_HAL_CFG_TELE_BCN_MAX_LI			62
+#define WCN36XX_HAL_CFG_TELE_BCN_MAX_LI_IDLE_BCNS	63
+#define WCN36XX_HAL_CFG_TX_PWR_CTRL_ENABLE		64
+#define WCN36XX_HAL_CFG_VALID_RADAR_CHANNEL_LIST	65
+#define WCN36XX_HAL_CFG_TX_POWER_24_20			66
+#define WCN36XX_HAL_CFG_TX_POWER_24_40			67
+#define WCN36XX_HAL_CFG_TX_POWER_50_20			68
+#define WCN36XX_HAL_CFG_TX_POWER_50_40			69
+#define WCN36XX_HAL_CFG_MCAST_BCAST_FILTER_SETTING	70
+#define WCN36XX_HAL_CFG_BCN_EARLY_TERM_WAKEUP_INTERVAL	71
+#define WCN36XX_HAL_CFG_MAX_TX_POWER_2_4		72
+#define WCN36XX_HAL_CFG_MAX_TX_POWER_5			73
+#define WCN36XX_HAL_CFG_INFRA_STA_KEEP_ALIVE_PERIOD	74
+#define WCN36XX_HAL_CFG_ENABLE_CLOSE_LOOP		75
+#define WCN36XX_HAL_CFG_BTC_EXECUTION_MODE		76
+#define WCN36XX_HAL_CFG_BTC_DHCP_BT_SLOTS_TO_BLOCK	77
+#define WCN36XX_HAL_CFG_BTC_A2DP_DHCP_BT_SUB_INTERVALS	78
+#define WCN36XX_HAL_CFG_PS_TX_INACTIVITY_TIMEOUT	79
+#define WCN36XX_HAL_CFG_WCNSS_API_VERSION		80
+#define WCN36XX_HAL_CFG_AP_KEEPALIVE_TIMEOUT		81
+#define WCN36XX_HAL_CFG_GO_KEEPALIVE_TIMEOUT		82
+#define WCN36XX_HAL_CFG_ENABLE_MC_ADDR_LIST		83
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_INQ_BT		84
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_PAGE_BT		85
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_CONN_BT		86
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_LE_BT		87
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_INQ_WLAN		88
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_PAGE_WLAN	89
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_CONN_WLAN	90
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_LE_WLAN		91
+#define WCN36XX_HAL_CFG_BTC_DYN_MAX_LEN_BT		92
+#define WCN36XX_HAL_CFG_BTC_DYN_MAX_LEN_WLAN		93
+#define WCN36XX_HAL_CFG_BTC_MAX_SCO_BLOCK_PERC		94
+#define WCN36XX_HAL_CFG_BTC_DHCP_PROT_ON_A2DP		95
+#define WCN36XX_HAL_CFG_BTC_DHCP_PROT_ON_SCO		96
+#define WCN36XX_HAL_CFG_ENABLE_UNICAST_FILTER		97
+#define WCN36XX_HAL_CFG_MAX_ASSOC_LIMIT			98
+#define WCN36XX_HAL_CFG_ENABLE_LPWR_IMG_TRANSITION	99
+#define WCN36XX_HAL_CFG_ENABLE_MCC_ADAPTIVE_SCHEDULER	100
+#define WCN36XX_HAL_CFG_ENABLE_DETECT_PS_SUPPORT	101
+#define WCN36XX_HAL_CFG_AP_LINK_MONITOR_TIMEOUT		102
+#define WCN36XX_HAL_CFG_BTC_DWELL_TIME_MULTIPLIER	103
+#define WCN36XX_HAL_CFG_ENABLE_TDLS_OXYGEN_MODE		104
+#define WCN36XX_HAL_CFG_MAX_PARAMS			105
+
+/* Message definitons - All the messages below need to be packed */
+
+/* Definition for HAL API Version. */
+struct wcnss_wlan_version {
+	u8 revision;
+	u8 version;
+	u8 minor;
+	u8 major;
+} __packed;
+
+/* Definition for Encryption Keys */
+struct wcn36xx_hal_keys {
+	u8 id;
+
+	/* 0 for multicast */
+	u8 unicast;
+
+	enum ani_key_direction direction;
+
+	/* Usage is unknown */
+	u8 rsc[WLAN_MAX_KEY_RSC_LEN];
+
+	/* =1 for authenticator,=0 for supplicant */
+	u8 pae_role;
+
+	u16 length;
+	u8 key[WCN36XX_HAL_MAC_MAX_KEY_LENGTH];
+} __packed;
+
+/*
+ * set_sta_key_params Moving here since it is shared by
+ * configbss/setstakey msgs
+ */
+struct wcn36xx_hal_set_sta_key_params {
+	/* STA Index */
+	u16 sta_index;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* STATIC/DYNAMIC - valid only for WEP */
+	enum ani_wep_type wep_type;
+
+	/* Default WEP key, valid only for static WEP, must between 0 and 3. */
+	u8 def_wep_idx;
+
+	/* valid only for non-static WEP encyrptions */
+	struct wcn36xx_hal_keys key[WCN36XX_HAL_MAC_MAX_NUM_OF_DEFAULT_KEYS];
+
+	/*
+	 * Control for Replay Count, 1= Single TID based replay count on Tx
+	 * 0 = Per TID based replay count on TX
+	 */
+	u8 single_tid_rc;
+
+} __packed;
+
+/* 4-byte control message header used by HAL*/
+struct wcn36xx_hal_msg_header {
+	enum wcn36xx_hal_host_msg_type msg_type:16;
+	enum wcn36xx_hal_host_msg_version msg_version:16;
+	u32 len;
+} __packed;
+
+/* Config format required by HAL for each CFG item*/
+struct wcn36xx_hal_cfg {
+	/* Cfg Id. The Id required by HAL is exported by HAL
+	 * in shared header file between UMAC and HAL.*/
+	u16 id;
+
+	/* Length of the Cfg. This parameter is used to go to next cfg
+	 * in the TLV format.*/
+	u16 len;
+
+	/* Padding bytes for unaligned address's */
+	u16 pad_bytes;
+
+	/* Reserve bytes for making cfgVal to align address */
+	u16 reserve;
+
+	/* Following the uCfgLen field there should be a 'uCfgLen' bytes
+	 * containing the uCfgValue ; u8 uCfgValue[uCfgLen] */
+} __packed;
+
+struct wcn36xx_hal_mac_start_parameters {
+	/* Drive Type - Production or FTM etc */
+	enum driver_type type;
+
+	/* Length of the config buffer */
+	u32 len;
+
+	/* Following this there is a TLV formatted buffer of length
+	 * "len" bytes containing all config values.
+	 * The TLV is expected to be formatted like this:
+	 * 0           15            31           31+CFG_LEN-1        length-1
+	 * |   CFG_ID   |   CFG_LEN   |   CFG_BODY    |  CFG_ID  |......|
+	 */
+} __packed;
+
+struct wcn36xx_hal_mac_start_req_msg {
+	/* config buffer must start in TLV format just here */
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_mac_start_parameters params;
+} __packed;
+
+struct wcn36xx_hal_mac_start_rsp_params {
+	/* success or failure */
+	u16 status;
+
+	/* Max number of STA supported by the device */
+	u8 stations;
+
+	/* Max number of BSS supported by the device */
+	u8 bssids;
+
+	/* API Version */
+	struct wcnss_wlan_version version;
+
+	/* CRM build information */
+	u8 crm_version[WCN36XX_HAL_VERSION_LENGTH];
+
+	/* hardware/chipset/misc version information */
+	u8 wlan_version[WCN36XX_HAL_VERSION_LENGTH];
+
+} __packed;
+
+struct wcn36xx_hal_mac_start_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_mac_start_rsp_params start_rsp_params;
+} __packed;
+
+struct wcn36xx_hal_mac_stop_req_params {
+	/* The reason for which the device is being stopped */
+	enum wcn36xx_hal_stop_type reason;
+
+} __packed;
+
+struct wcn36xx_hal_mac_stop_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_mac_stop_req_params stop_req_params;
+} __packed;
+
+struct wcn36xx_hal_mac_stop_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_update_cfg_req_msg {
+	/*
+	 * Note: The length specified in tHalUpdateCfgReqMsg messages should be
+	 * header.msgLen = sizeof(tHalUpdateCfgReqMsg) + uConfigBufferLen
+	 */
+	struct wcn36xx_hal_msg_header header;
+
+	/* Length of the config buffer. Allows UMAC to update multiple CFGs */
+	u32 len;
+
+	/*
+	 * Following this there is a TLV formatted buffer of length
+	 * "uConfigBufferLen" bytes containing all config values.
+	 * The TLV is expected to be formatted like this:
+	 * 0           15            31           31+CFG_LEN-1        length-1
+	 * |   CFG_ID   |   CFG_LEN   |   CFG_BODY    |  CFG_ID  |......|
+	 */
+
+} __packed;
+
+struct wcn36xx_hal_update_cfg_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+} __packed;
+
+/* Frame control field format (2 bytes) */
+struct wcn36xx_hal_mac_frame_ctl {
+
+#ifndef ANI_LITTLE_BIT_ENDIAN
+
+	u8 subType:4;
+	u8 type:2;
+	u8 protVer:2;
+
+	u8 order:1;
+	u8 wep:1;
+	u8 moreData:1;
+	u8 powerMgmt:1;
+	u8 retry:1;
+	u8 moreFrag:1;
+	u8 fromDS:1;
+	u8 toDS:1;
+
+#else
+
+	u8 protVer:2;
+	u8 type:2;
+	u8 subType:4;
+
+	u8 toDS:1;
+	u8 fromDS:1;
+	u8 moreFrag:1;
+	u8 retry:1;
+	u8 powerMgmt:1;
+	u8 moreData:1;
+	u8 wep:1;
+	u8 order:1;
+
+#endif
+
+};
+
+/* Sequence control field */
+struct wcn36xx_hal_mac_seq_ctl {
+	u8 fragNum:4;
+	u8 seqNumLo:4;
+	u8 seqNumHi:8;
+};
+
+/* Management header format */
+struct wcn36xx_hal_mac_mgmt_hdr {
+	struct wcn36xx_hal_mac_frame_ctl fc;
+	u8 durationLo;
+	u8 durationHi;
+	u8 da[6];
+	u8 sa[6];
+	u8 bssId[6];
+	struct wcn36xx_hal_mac_seq_ctl seqControl;
+};
+
+/* FIXME: pronto v1 apparently has 4 */
+#define WCN36XX_HAL_NUM_BSSID               2
+
+/* Scan Entry to hold active BSS idx's */
+struct wcn36xx_hal_scan_entry {
+	u8 bss_index[WCN36XX_HAL_NUM_BSSID];
+	u8 active_bss_count;
+};
+
+struct wcn36xx_hal_init_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* LEARN - AP Role
+	   SCAN - STA Role */
+	enum wcn36xx_hal_sys_mode mode;
+
+	/* BSSID of the BSS */
+	u8 bssid[ETH_ALEN];
+
+	/* Whether BSS needs to be notified */
+	u8 notify;
+
+	/* Kind of frame to be used for notifying the BSS (Data Null, QoS
+	 * Null, or CTS to Self). Must always be a valid frame type. */
+	u8 frame_type;
+
+	/* UMAC has the option of passing the MAC frame to be used for
+	 * notifying the BSS. If non-zero, HAL will use the MAC frame
+	 * buffer pointed to by macMgmtHdr. If zero, HAL will generate the
+	 * appropriate MAC frame based on frameType. */
+	u8 frame_len;
+
+	/* Following the framelength there is a MAC frame buffer if
+	 * frameLength is non-zero. */
+	struct wcn36xx_hal_mac_mgmt_hdr mac_mgmt_hdr;
+
+	/* Entry to hold number of active BSS idx's */
+	struct wcn36xx_hal_scan_entry scan_entry;
+};
+
+struct wcn36xx_hal_init_scan_con_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* LEARN - AP Role
+	   SCAN - STA Role */
+	enum wcn36xx_hal_sys_mode mode;
+
+	/* BSSID of the BSS */
+	u8 bssid[ETH_ALEN];
+
+	/* Whether BSS needs to be notified */
+	u8 notify;
+
+	/* Kind of frame to be used for notifying the BSS (Data Null, QoS
+	 * Null, or CTS to Self). Must always be a valid frame type. */
+	u8 frame_type;
+
+	/* UMAC has the option of passing the MAC frame to be used for
+	 * notifying the BSS. If non-zero, HAL will use the MAC frame
+	 * buffer pointed to by macMgmtHdr. If zero, HAL will generate the
+	 * appropriate MAC frame based on frameType. */
+	u8 frame_length;
+
+	/* Following the framelength there is a MAC frame buffer if
+	 * frameLength is non-zero. */
+	struct wcn36xx_hal_mac_mgmt_hdr mac_mgmt_hdr;
+
+	/* Entry to hold number of active BSS idx's */
+	struct wcn36xx_hal_scan_entry scan_entry;
+
+	/* Single NoA usage in Scanning */
+	u8 use_noa;
+
+	/* Indicates the scan duration (in ms) */
+	u16 scan_duration;
+
+};
+
+struct wcn36xx_hal_init_scan_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+} __packed;
+
+struct wcn36xx_hal_start_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Indicates the channel to scan */
+	u8 scan_channel;
+} __packed;
+
+struct wcn36xx_hal_start_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u32 start_tsf[2];
+	u8 tx_mgmt_power;
+
+} __packed;
+
+struct wcn36xx_hal_end_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Indicates the channel to stop scanning. Not used really. But
+	 * retained for symmetry with "start Scan" message. It can also
+	 * help in error check if needed. */
+	u8 scan_channel;
+} __packed;
+
+struct wcn36xx_hal_end_scan_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_finish_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Identifies the operational state of the AP/STA
+	 * LEARN - AP Role SCAN - STA Role */
+	enum wcn36xx_hal_sys_mode mode;
+
+	/* Operating channel to tune to. */
+	u8 oper_channel;
+
+	/* Channel Bonding state If 20/40 MHz is operational, this will
+	 * indicate the 40 MHz extension channel in combination with the
+	 * control channel */
+	enum phy_chan_bond_state cb_state;
+
+	/* BSSID of the BSS */
+	u8 bssid[ETH_ALEN];
+
+	/* Whether BSS needs to be notified */
+	u8 notify;
+
+	/* Kind of frame to be used for notifying the BSS (Data Null, QoS
+	 * Null, or CTS to Self). Must always be a valid frame type. */
+	u8 frame_type;
+
+	/* UMAC has the option of passing the MAC frame to be used for
+	 * notifying the BSS. If non-zero, HAL will use the MAC frame
+	 * buffer pointed to by macMgmtHdr. If zero, HAL will generate the
+	 * appropriate MAC frame based on frameType. */
+	u8 frame_length;
+
+	/* Following the framelength there is a MAC frame buffer if
+	 * frameLength is non-zero. */
+	struct wcn36xx_hal_mac_mgmt_hdr mac_mgmt_hdr;
+
+	/* Entry to hold number of active BSS idx's */
+	struct wcn36xx_hal_scan_entry scan_entry;
+
+} __packed;
+
+struct wcn36xx_hal_finish_scan_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+} __packed;
+
+enum wcn36xx_hal_rate_index {
+	HW_RATE_INDEX_1MBPS	= 0x82,
+	HW_RATE_INDEX_2MBPS	= 0x84,
+	HW_RATE_INDEX_5_5MBPS	= 0x8B,
+	HW_RATE_INDEX_6MBPS	= 0x0C,
+	HW_RATE_INDEX_9MBPS	= 0x12,
+	HW_RATE_INDEX_11MBPS	= 0x96,
+	HW_RATE_INDEX_12MBPS	= 0x18,
+	HW_RATE_INDEX_18MBPS	= 0x24,
+	HW_RATE_INDEX_24MBPS	= 0x30,
+	HW_RATE_INDEX_36MBPS	= 0x48,
+	HW_RATE_INDEX_48MBPS	= 0x60,
+	HW_RATE_INDEX_54MBPS	= 0x6C
+};
+
+struct wcn36xx_hal_supported_rates {
+	/*
+	 * For Self STA Entry: this represents Self Mode.
+	 * For Peer Stations, this represents the mode of the peer.
+	 * On Station:
+	 *
+	 * --this mode is updated when PE adds the Self Entry.
+	 *
+	 * -- OR when PE sends 'ADD_BSS' message and station context in BSS
+	 *    is used to indicate the mode of the AP.
+	 *
+	 * ON AP:
+	 *
+	 * -- this mode is updated when PE sends 'ADD_BSS' and Sta entry
+	 *     for that BSS is used to indicate the self mode of the AP.
+	 *
+	 * -- OR when a station is associated, PE sends 'ADD_STA' message
+	 *    with this mode updated.
+	 */
+
+	enum sta_rate_mode op_rate_mode;
+
+	/* 11b, 11a and aniLegacyRates are IE rates which gives rate in
+	 * unit of 500Kbps */
+	u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES];
+	u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES];
+	u16 legacy_rates[WCN36XX_HAL_NUM_POLARIS_RATES];
+	u16 reserved;
+
+	/* Taurus only supports 26 Titan Rates(no ESF/concat Rates will be
+	 * supported) First 26 bits are reserved for those Titan rates and
+	 * the last 4 bits(bit28-31) for Taurus, 2(bit26-27) bits are
+	 * reserved. */
+	/* Titan and Taurus Rates */
+	u32 enhanced_rate_bitmap;
+
+	/*
+	 * 0-76 bits used, remaining reserved
+	 * bits 0-15 and 32 should be set.
+	 */
+	u8 supported_mcs_set[WCN36XX_HAL_MAC_MAX_SUPPORTED_MCS_SET];
+
+	/*
+	 * RX Highest Supported Data Rate defines the highest data
+	 * rate that the STA is able to receive, in unites of 1Mbps.
+	 * This value is derived from "Supported MCS Set field" inside
+	 * the HT capability element.
+	 */
+	u16 rx_highest_data_rate;
+
+} __packed;
+
+struct wcn36xx_hal_config_sta_params {
+	/* BSSID of STA */
+	u8 bssid[ETH_ALEN];
+
+	/* ASSOC ID, as assigned by UMAC */
+	u16 aid;
+
+	/* STA entry Type: 0 - Self, 1 - Other/Peer, 2 - BSSID, 3 - BCAST */
+	u8 type;
+
+	/* Short Preamble Supported. */
+	u8 short_preamble_supported;
+
+	/* MAC Address of STA */
+	u8 mac[ETH_ALEN];
+
+	/* Listen interval of the STA */
+	u16 listen_interval;
+
+	/* Support for 11e/WMM */
+	u8 wmm_enabled;
+
+	/* 11n HT capable STA */
+	u8 ht_capable;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* RIFS mode 0 - NA, 1 - Allowed */
+	u8 rifs_mode;
+
+	/* L-SIG TXOP Protection mechanism
+	   0 - No Support, 1 - Supported
+	   SG - there is global field */
+	u8 lsig_txop_protection;
+
+	/* Max Ampdu Size supported by STA. TPE programming.
+	   0 : 8k , 1 : 16k, 2 : 32k, 3 : 64k */
+	u8 max_ampdu_size;
+
+	/* Max Ampdu density. Used by RA.  3 : 0~7 : 2^(11nAMPDUdensity -4) */
+	u8 max_ampdu_density;
+
+	/* Max AMSDU size 1 : 3839 bytes, 0 : 7935 bytes */
+	u8 max_amsdu_size;
+
+	/* Short GI support for 40Mhz packets */
+	u8 sgi_40mhz;
+
+	/* Short GI support for 20Mhz packets */
+	u8 sgi_20Mhz;
+
+	/* TODO move this parameter to the end for 3680 */
+	/* These rates are the intersection of peer and self capabilities. */
+	struct wcn36xx_hal_supported_rates supported_rates;
+
+	/* Robust Management Frame (RMF) enabled/disabled */
+	u8 rmf;
+
+	/* The unicast encryption type in the association */
+	u32 encrypt_type;
+
+	/* HAL should update the existing STA entry, if this flag is set. UMAC
+	   will set this flag in case of RE-ASSOC, where we want to reuse the
+	   old STA ID. 0 = Add, 1 = Update */
+	u8 action;
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* Max SP Length */
+	u8 max_sp_len;
+
+	/* 11n Green Field preamble support
+	   0 - Not supported, 1 - Supported */
+	u8 green_field_capable;
+
+	/* MIMO Power Save mode */
+	enum wcn36xx_hal_ht_mimo_state mimo_ps;
+
+	/* Delayed BA Support */
+	u8 delayed_ba_support;
+
+	/* Max AMPDU duration in 32us */
+	u8 max_ampdu_duration;
+
+	/* HT STA should set it to 1 if it is enabled in BSS. HT STA should
+	 * set it to 0 if AP does not support it. This indication is sent
+	 * to HAL and HAL uses this flag to pickup up appropriate 40Mhz
+	 * rates. */
+	u8 dsss_cck_mode_40mhz;
+
+	/* Valid STA Idx when action=Update. Set to 0xFF when invalid!
+	 * Retained for backward compalibity with existing HAL code */
+	u8 sta_index;
+
+	/* BSSID of BSS to which station is associated. Set to 0xFF when
+	 * invalid. Retained for backward compalibity with existing HAL
+	 * code */
+	u8 bssid_index;
+
+	u8 p2p;
+
+	/* TODO add this parameter for 3680. */
+	/* Reserved to align next field on a dword boundary */
+	/* u8 reserved; */
+} __packed;
+
+struct wcn36xx_hal_config_sta_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_sta_params sta_params;
+} __packed;
+
+struct wcn36xx_hal_config_sta_params_v1 {
+	/* BSSID of STA */
+	u8 bssid[ETH_ALEN];
+
+	/* ASSOC ID, as assigned by UMAC */
+	u16 aid;
+
+	/* STA entry Type: 0 - Self, 1 - Other/Peer, 2 - BSSID, 3 - BCAST */
+	u8 type;
+
+	/* Short Preamble Supported. */
+	u8 short_preamble_supported;
+
+	/* MAC Address of STA */
+	u8 mac[ETH_ALEN];
+
+	/* Listen interval of the STA */
+	u16 listen_interval;
+
+	/* Support for 11e/WMM */
+	u8 wmm_enabled;
+
+	/* 11n HT capable STA */
+	u8 ht_capable;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* RIFS mode 0 - NA, 1 - Allowed */
+	u8 rifs_mode;
+
+	/* L-SIG TXOP Protection mechanism
+	   0 - No Support, 1 - Supported
+	   SG - there is global field */
+	u8 lsig_txop_protection;
+
+	/* Max Ampdu Size supported by STA. TPE programming.
+	   0 : 8k , 1 : 16k, 2 : 32k, 3 : 64k */
+	u8 max_ampdu_size;
+
+	/* Max Ampdu density. Used by RA.  3 : 0~7 : 2^(11nAMPDUdensity -4) */
+	u8 max_ampdu_density;
+
+	/* Max AMSDU size 1 : 3839 bytes, 0 : 7935 bytes */
+	u8 max_amsdu_size;
+
+	/* Short GI support for 40Mhz packets */
+	u8 sgi_40mhz;
+
+	/* Short GI support for 20Mhz packets */
+	u8 sgi_20Mhz;
+
+	/* Robust Management Frame (RMF) enabled/disabled */
+	u8 rmf;
+
+	/* The unicast encryption type in the association */
+	u32 encrypt_type;
+
+	/* HAL should update the existing STA entry, if this flag is set. UMAC
+	   will set this flag in case of RE-ASSOC, where we want to reuse the
+	   old STA ID. 0 = Add, 1 = Update */
+	u8 action;
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* Max SP Length */
+	u8 max_sp_len;
+
+	/* 11n Green Field preamble support
+	   0 - Not supported, 1 - Supported */
+	u8 green_field_capable;
+
+	/* MIMO Power Save mode */
+	enum wcn36xx_hal_ht_mimo_state mimo_ps;
+
+	/* Delayed BA Support */
+	u8 delayed_ba_support;
+
+	/* Max AMPDU duration in 32us */
+	u8 max_ampdu_duration;
+
+	/* HT STA should set it to 1 if it is enabled in BSS. HT STA should
+	 * set it to 0 if AP does not support it. This indication is sent
+	 * to HAL and HAL uses this flag to pickup up appropriate 40Mhz
+	 * rates. */
+	u8 dsss_cck_mode_40mhz;
+
+	/* Valid STA Idx when action=Update. Set to 0xFF when invalid!
+	 * Retained for backward compalibity with existing HAL code */
+	u8 sta_index;
+
+	/* BSSID of BSS to which station is associated. Set to 0xFF when
+	 * invalid. Retained for backward compalibity with existing HAL
+	 * code */
+	u8 bssid_index;
+
+	u8 p2p;
+
+	/* Reserved to align next field on a dword boundary */
+	u8 reserved;
+
+	/* These rates are the intersection of peer and self capabilities. */
+	struct wcn36xx_hal_supported_rates supported_rates;
+} __packed;
+
+struct wcn36xx_hal_config_sta_req_msg_v1 {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_sta_params_v1 sta_params;
+} __packed;
+
+struct config_sta_rsp_params {
+	/* success or failure */
+	u32 status;
+
+	/* Station index; valid only when 'status' field value SUCCESS */
+	u8 sta_index;
+
+	/* BSSID Index of BSS to which the station is associated */
+	u8 bssid_index;
+
+	/* DPU Index for PTK */
+	u8 dpu_index;
+
+	/* DPU Index for GTK */
+	u8 bcast_dpu_index;
+
+	/* DPU Index for IGTK  */
+	u8 bcast_mgmt_dpu_idx;
+
+	/* PTK DPU signature */
+	u8 uc_ucast_sig;
+
+	/* GTK DPU isignature */
+	u8 uc_bcast_sig;
+
+	/* IGTK DPU signature */
+	u8 uc_mgmt_sig;
+
+	u8 p2p;
+
+} __packed;
+
+struct wcn36xx_hal_config_sta_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	struct config_sta_rsp_params params;
+} __packed;
+
+/* Delete STA Request message */
+struct wcn36xx_hal_delete_sta_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Index of STA to delete */
+	u8 sta_index;
+
+} __packed;
+
+/* Delete STA Response message */
+struct wcn36xx_hal_delete_sta_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Index of STA deleted */
+	u8 sta_id;
+} __packed;
+
+/* 12 Bytes long because this structure can be used to represent rate and
+ * extended rate set IEs. The parser assume this to be at least 12 */
+struct wcn36xx_hal_rate_set {
+	u8 num_rates;
+	u8 rate[WCN36XX_HAL_MAC_RATESET_EID_MAX];
+} __packed;
+
+/* access category record */
+struct wcn36xx_hal_aci_aifsn {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u8 rsvd:1;
+	u8 aci:2;
+	u8 acm:1;
+	u8 aifsn:4;
+#else
+	u8 aifsn:4;
+	u8 acm:1;
+	u8 aci:2;
+	u8 rsvd:1;
+#endif
+} __packed;
+
+/* contention window size */
+struct wcn36xx_hal_mac_cw {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u8 max:4;
+	u8 min:4;
+#else
+	u8 min:4;
+	u8 max:4;
+#endif
+} __packed;
+
+struct wcn36xx_hal_edca_param_record {
+	struct wcn36xx_hal_aci_aifsn aci;
+	struct wcn36xx_hal_mac_cw cw;
+	u16 txop_limit;
+} __packed;
+
+struct wcn36xx_hal_mac_ssid {
+	u8 length;
+	u8 ssid[32];
+} __packed;
+
+/* Concurrency role. These are generic IDs that identify the various roles
+ *  in the software system. */
+enum wcn36xx_hal_con_mode {
+	WCN36XX_HAL_STA_MODE = 0,
+
+	/* to support softAp mode . This is misleading.
+	   It means AP MODE only. */
+	WCN36XX_HAL_STA_SAP_MODE = 1,
+
+	WCN36XX_HAL_P2P_CLIENT_MODE,
+	WCN36XX_HAL_P2P_GO_MODE,
+	WCN36XX_HAL_MONITOR_MODE,
+};
+
+/* This is a bit pattern to be set for each mode
+ * bit 0 - sta mode
+ * bit 1 - ap mode
+ * bit 2 - p2p client mode
+ * bit 3 - p2p go mode */
+enum wcn36xx_hal_concurrency_mode {
+	HAL_STA = 1,
+	HAL_SAP = 2,
+
+	/* to support sta, softAp  mode . This means STA+AP mode */
+	HAL_STA_SAP = 3,
+
+	HAL_P2P_CLIENT = 4,
+	HAL_P2P_GO = 8,
+	HAL_MAX_CONCURRENCY_PERSONA = 4
+};
+
+struct wcn36xx_hal_config_bss_params {
+	/* BSSID */
+	u8 bssid[ETH_ALEN];
+
+	/* Self Mac Address */
+	u8 self_mac_addr[ETH_ALEN];
+
+	/* BSS type */
+	enum wcn36xx_hal_bss_type bss_type;
+
+	/* Operational Mode: AP =0, STA = 1 */
+	u8 oper_mode;
+
+	/* Network Type */
+	enum wcn36xx_hal_nw_type nw_type;
+
+	/* Used to classify PURE_11G/11G_MIXED to program MTU */
+	u8 short_slot_time_supported;
+
+	/* Co-exist with 11a STA */
+	u8 lla_coexist;
+
+	/* Co-exist with 11b STA */
+	u8 llb_coexist;
+
+	/* Co-exist with 11g STA */
+	u8 llg_coexist;
+
+	/* Coexistence with 11n STA */
+	u8 ht20_coexist;
+
+	/* Non GF coexist flag */
+	u8 lln_non_gf_coexist;
+
+	/* TXOP protection support */
+	u8 lsig_tx_op_protection_full_support;
+
+	/* RIFS mode */
+	u8 rifs_mode;
+
+	/* Beacon Interval in TU */
+	u16 beacon_interval;
+
+	/* DTIM period */
+	u8 dtim_period;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* Operating channel */
+	u8 oper_channel;
+
+	/* Extension channel for channel bonding */
+	u8 ext_channel;
+
+	/* Reserved to align next field on a dword boundary */
+	u8 reserved;
+
+	/* TODO move sta to the end for 3680 */
+	/* Context of the station being added in HW
+	 *  Add a STA entry for "itself" -
+	 *
+	 *  On AP  - Add the AP itself in an "STA context"
+	 *
+	 *  On STA - Add the AP to which this STA is joining in an
+	 *  "STA context"
+	 */
+	struct wcn36xx_hal_config_sta_params sta;
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* HAL should update the existing BSS entry, if this flag is set.
+	 * UMAC will set this flag in case of reassoc, where we want to
+	 * resue the the old BSSID and still return success 0 = Add, 1 =
+	 * Update */
+	u8 action;
+
+	/* MAC Rate Set */
+	struct wcn36xx_hal_rate_set rateset;
+
+	/* Enable/Disable HT capabilities of the BSS */
+	u8 ht;
+
+	/* Enable/Disable OBSS protection */
+	u8 obss_prot_enabled;
+
+	/* RMF enabled/disabled */
+	u8 rmf;
+
+	/* HT Operating Mode operating mode of the 802.11n STA */
+	enum wcn36xx_hal_ht_operating_mode ht_oper_mode;
+
+	/* Dual CTS Protection: 0 - Unused, 1 - Used */
+	u8 dual_cts_protection;
+
+	/* Probe Response Max retries */
+	u8 max_probe_resp_retry_limit;
+
+	/* To Enable Hidden ssid */
+	u8 hidden_ssid;
+
+	/* To Enable Disable FW Proxy Probe Resp */
+	u8 proxy_probe_resp;
+
+	/* Boolean to indicate if EDCA params are valid. UMAC might not
+	 * have valid EDCA params or might not desire to apply EDCA params
+	 * during config BSS. 0 implies Not Valid ; Non-Zero implies
+	 * valid */
+	u8 edca_params_valid;
+
+	/* EDCA Parameters for Best Effort Access Category */
+	struct wcn36xx_hal_edca_param_record acbe;
+
+	/* EDCA Parameters forBackground Access Category */
+	struct wcn36xx_hal_edca_param_record acbk;
+
+	/* EDCA Parameters for Video Access Category */
+	struct wcn36xx_hal_edca_param_record acvi;
+
+	/* EDCA Parameters for Voice Access Category */
+	struct wcn36xx_hal_edca_param_record acvo;
+
+	/* Ext Bss Config Msg if set */
+	u8 ext_set_sta_key_param_valid;
+
+	/* SetStaKeyParams for ext bss msg */
+	struct wcn36xx_hal_set_sta_key_params ext_set_sta_key_param;
+
+	/* Persona for the BSS can be STA,AP,GO,CLIENT value same as enum
+	 * wcn36xx_hal_con_mode */
+	u8 wcn36xx_hal_persona;
+
+	u8 spectrum_mgt_enable;
+
+	/* HAL fills in the tx power used for mgmt frames in txMgmtPower */
+	s8 tx_mgmt_power;
+
+	/* maxTxPower has max power to be used after applying the power
+	 * constraint if any */
+	s8 max_tx_power;
+} __packed;
+
+struct wcn36xx_hal_config_bss_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_bss_params bss_params;
+} __packed;
+
+struct wcn36xx_hal_config_bss_params_v1 {
+	/* BSSID */
+	u8 bssid[ETH_ALEN];
+
+	/* Self Mac Address */
+	u8 self_mac_addr[ETH_ALEN];
+
+	/* BSS type */
+	enum wcn36xx_hal_bss_type bss_type;
+
+	/* Operational Mode: AP =0, STA = 1 */
+	u8 oper_mode;
+
+	/* Network Type */
+	enum wcn36xx_hal_nw_type nw_type;
+
+	/* Used to classify PURE_11G/11G_MIXED to program MTU */
+	u8 short_slot_time_supported;
+
+	/* Co-exist with 11a STA */
+	u8 lla_coexist;
+
+	/* Co-exist with 11b STA */
+	u8 llb_coexist;
+
+	/* Co-exist with 11g STA */
+	u8 llg_coexist;
+
+	/* Coexistence with 11n STA */
+	u8 ht20_coexist;
+
+	/* Non GF coexist flag */
+	u8 lln_non_gf_coexist;
+
+	/* TXOP protection support */
+	u8 lsig_tx_op_protection_full_support;
+
+	/* RIFS mode */
+	u8 rifs_mode;
+
+	/* Beacon Interval in TU */
+	u16 beacon_interval;
+
+	/* DTIM period */
+	u8 dtim_period;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* Operating channel */
+	u8 oper_channel;
+
+	/* Extension channel for channel bonding */
+	u8 ext_channel;
+
+	/* Reserved to align next field on a dword boundary */
+	u8 reserved;
+
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* HAL should update the existing BSS entry, if this flag is set.
+	 * UMAC will set this flag in case of reassoc, where we want to
+	 * resue the the old BSSID and still return success 0 = Add, 1 =
+	 * Update */
+	u8 action;
+
+	/* MAC Rate Set */
+	struct wcn36xx_hal_rate_set rateset;
+
+	/* Enable/Disable HT capabilities of the BSS */
+	u8 ht;
+
+	/* Enable/Disable OBSS protection */
+	u8 obss_prot_enabled;
+
+	/* RMF enabled/disabled */
+	u8 rmf;
+
+	/* HT Operating Mode operating mode of the 802.11n STA */
+	enum wcn36xx_hal_ht_operating_mode ht_oper_mode;
+
+	/* Dual CTS Protection: 0 - Unused, 1 - Used */
+	u8 dual_cts_protection;
+
+	/* Probe Response Max retries */
+	u8 max_probe_resp_retry_limit;
+
+	/* To Enable Hidden ssid */
+	u8 hidden_ssid;
+
+	/* To Enable Disable FW Proxy Probe Resp */
+	u8 proxy_probe_resp;
+
+	/* Boolean to indicate if EDCA params are valid. UMAC might not
+	 * have valid EDCA params or might not desire to apply EDCA params
+	 * during config BSS. 0 implies Not Valid ; Non-Zero implies
+	 * valid */
+	u8 edca_params_valid;
+
+	/* EDCA Parameters for Best Effort Access Category */
+	struct wcn36xx_hal_edca_param_record acbe;
+
+	/* EDCA Parameters forBackground Access Category */
+	struct wcn36xx_hal_edca_param_record acbk;
+
+	/* EDCA Parameters for Video Access Category */
+	struct wcn36xx_hal_edca_param_record acvi;
+
+	/* EDCA Parameters for Voice Access Category */
+	struct wcn36xx_hal_edca_param_record acvo;
+
+	/* Ext Bss Config Msg if set */
+	u8 ext_set_sta_key_param_valid;
+
+	/* SetStaKeyParams for ext bss msg */
+	struct wcn36xx_hal_set_sta_key_params ext_set_sta_key_param;
+
+	/* Persona for the BSS can be STA,AP,GO,CLIENT value same as enum
+	 * wcn36xx_hal_con_mode */
+	u8 wcn36xx_hal_persona;
+
+	u8 spectrum_mgt_enable;
+
+	/* HAL fills in the tx power used for mgmt frames in txMgmtPower */
+	s8 tx_mgmt_power;
+
+	/* maxTxPower has max power to be used after applying the power
+	 * constraint if any */
+	s8 max_tx_power;
+
+	/* Context of the station being added in HW
+	 *  Add a STA entry for "itself" -
+	 *
+	 *  On AP  - Add the AP itself in an "STA context"
+	 *
+	 *  On STA - Add the AP to which this STA is joining in an
+	 *  "STA context"
+	 */
+	struct wcn36xx_hal_config_sta_params_v1 sta;
+} __packed;
+
+struct wcn36xx_hal_config_bss_req_msg_v1 {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_bss_params_v1 bss_params;
+} __packed;
+
+struct wcn36xx_hal_config_bss_rsp_params {
+	/* Success or Failure */
+	u32 status;
+
+	/* BSS index allocated by HAL */
+	u8 bss_index;
+
+	/* DPU descriptor index for PTK */
+	u8 dpu_desc_index;
+
+	/* PTK DPU signature */
+	u8 ucast_dpu_signature;
+
+	/* DPU descriptor index for GTK */
+	u8 bcast_dpu_desc_indx;
+
+	/* GTK DPU signature */
+	u8 bcast_dpu_signature;
+
+	/* DPU descriptor for IGTK */
+	u8 mgmt_dpu_desc_index;
+
+	/* IGTK DPU signature */
+	u8 mgmt_dpu_signature;
+
+	/* Station Index for BSS entry */
+	u8 bss_sta_index;
+
+	/* Self station index for this BSS */
+	u8 bss_self_sta_index;
+
+	/* Bcast station for buffering bcast frames in AP role */
+	u8 bss_bcast_sta_idx;
+
+	/* MAC Address of STA(PEER/SELF) in staContext of configBSSReq */
+	u8 mac[ETH_ALEN];
+
+	/* HAL fills in the tx power used for mgmt frames in this field. */
+	s8 tx_mgmt_power;
+
+} __packed;
+
+struct wcn36xx_hal_config_bss_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_bss_rsp_params bss_rsp_params;
+} __packed;
+
+struct wcn36xx_hal_delete_bss_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSS index to be deleted */
+	u8 bss_index;
+
+} __packed;
+
+struct wcn36xx_hal_delete_bss_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure */
+	u32 status;
+
+	/* BSS index that has been deleted */
+	u8 bss_index;
+
+} __packed;
+
+struct wcn36xx_hal_join_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Indicates the BSSID to which STA is going to associate */
+	u8 bssid[ETH_ALEN];
+
+	/* Indicates the channel to switch to. */
+	u8 channel;
+
+	/* Self STA MAC */
+	u8 self_sta_mac_addr[ETH_ALEN];
+
+	/* Local power constraint */
+	u8 local_power_constraint;
+
+	/* Secondary channel offset */
+	enum phy_chan_bond_state secondary_channel_offset;
+
+	/* link State */
+	enum wcn36xx_hal_link_state link_state;
+
+	/* Max TX power */
+	s8 max_tx_power;
+} __packed;
+
+struct wcn36xx_hal_join_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* HAL fills in the tx power used for mgmt frames in this field */
+	u8 tx_mgmt_power;
+} __packed;
+
+struct post_assoc_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	struct wcn36xx_hal_config_sta_params sta_params;
+	struct wcn36xx_hal_config_bss_params bss_params;
+};
+
+struct post_assoc_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct config_sta_rsp_params sta_rsp_params;
+	struct wcn36xx_hal_config_bss_rsp_params bss_rsp_params;
+};
+
+/* This is used to create a set of WEP keys for a given BSS. */
+struct wcn36xx_hal_set_bss_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSS Index of the BSS */
+	u8 bss_idx;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* Number of keys */
+	u8 num_keys;
+
+	/* Array of keys. */
+	struct wcn36xx_hal_keys keys[WCN36XX_HAL_MAC_MAX_NUM_OF_DEFAULT_KEYS];
+
+	/* Control for Replay Count, 1= Single TID based replay count on Tx
+	 * 0 = Per TID based replay count on TX */
+	u8 single_tid_rc;
+} __packed;
+
+/* tagged version of set bss key */
+struct wcn36xx_hal_set_bss_key_req_msg_tagged {
+	struct wcn36xx_hal_set_bss_key_req_msg Msg;
+	u32 tag;
+} __packed;
+
+struct wcn36xx_hal_set_bss_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+/*
+ * This is used  configure the key information on a given station.
+ * When the sec_type is WEP40 or WEP104, the def_wep_idx is used to locate
+ * a preconfigured key from a BSS the station assoicated with; otherwise
+ * a new key descriptor is created based on the key field.
+ */
+struct wcn36xx_hal_set_sta_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_set_sta_key_params set_sta_key_params;
+} __packed;
+
+struct wcn36xx_hal_set_sta_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_remove_bss_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSS Index of the BSS */
+	u8 bss_idx;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* Key Id */
+	u8 key_id;
+
+	/* STATIC/DYNAMIC. Used in Nullifying in Key Descriptors for
+	 * Static/Dynamic keys */
+	enum ani_wep_type wep_type;
+} __packed;
+
+struct wcn36xx_hal_remove_bss_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+/*
+ * This is used by PE to Remove the key information on a given station.
+ */
+struct wcn36xx_hal_remove_sta_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* STA Index */
+	u16 sta_idx;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* Key Id */
+	u8 key_id;
+
+	/* Whether to invalidate the Broadcast key or Unicast key. In case
+	 * of WEP, the same key is used for both broadcast and unicast. */
+	u8 unicast;
+
+} __packed;
+
+struct wcn36xx_hal_remove_sta_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*success or failure */
+	u32 status;
+
+} __packed;
+
+#ifdef FEATURE_OEM_DATA_SUPPORT
+
+#ifndef OEM_DATA_REQ_SIZE
+#define OEM_DATA_REQ_SIZE 134
+#endif
+
+#ifndef OEM_DATA_RSP_SIZE
+#define OEM_DATA_RSP_SIZE 1968
+#endif
+
+struct start_oem_data_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 status;
+	tSirMacAddr self_mac_addr;
+	u8 oem_data_req[OEM_DATA_REQ_SIZE];
+
+};
+
+struct start_oem_data_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 oem_data_rsp[OEM_DATA_RSP_SIZE];
+};
+
+#endif
+
+struct wcn36xx_hal_switch_channel_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Channel number */
+	u8 channel_number;
+
+	/* Local power constraint */
+	u8 local_power_constraint;
+
+	/* Secondary channel offset */
+	enum phy_chan_bond_state secondary_channel_offset;
+
+	/* HAL fills in the tx power used for mgmt frames in this field. */
+	u8 tx_mgmt_power;
+
+	/* Max TX power */
+	u8 max_tx_power;
+
+	/* Self STA MAC */
+	u8 self_sta_mac_addr[ETH_ALEN];
+
+	/* VO WIFI comment: BSSID needed to identify session. As the
+	 * request has power constraints, this should be applied only to
+	 * that session Since MTU timing and EDCA are sessionized, this
+	 * struct needs to be sessionized and bssid needs to be out of the
+	 * VOWifi feature flag V IMP: Keep bssId field at the end of this
+	 * msg. It is used to mantain backward compatbility by way of
+	 * ignoring if using new host/old FW or old host/new FW since it is
+	 * at the end of this struct
+	 */
+	u8 bssid[ETH_ALEN];
+} __packed;
+
+struct wcn36xx_hal_switch_channel_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Status */
+	u32 status;
+
+	/* Channel number - same as in request */
+	u8 channel_number;
+
+	/* HAL fills in the tx power used for mgmt frames in this field */
+	u8 tx_mgmt_power;
+
+	/* BSSID needed to identify session - same as in request */
+	u8 bssid[ETH_ALEN];
+
+} __packed;
+
+struct update_edca_params_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*BSS Index */
+	u16 bss_index;
+
+	/* Best Effort */
+	struct wcn36xx_hal_edca_param_record acbe;
+
+	/* Background */
+	struct wcn36xx_hal_edca_param_record acbk;
+
+	/* Video */
+	struct wcn36xx_hal_edca_param_record acvi;
+
+	/* Voice */
+	struct wcn36xx_hal_edca_param_record acvo;
+};
+
+struct update_edca_params_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct dpu_stats_params {
+	/* Index of STA to which the statistics */
+	u16 sta_index;
+
+	/* Encryption mode */
+	u8 enc_mode;
+
+	/* status */
+	u32 status;
+
+	/* Statistics */
+	u32 send_blocks;
+	u32 recv_blocks;
+	u32 replays;
+	u8 mic_error_cnt;
+	u32 prot_excl_cnt;
+	u16 format_err_cnt;
+	u16 un_decryptable_cnt;
+	u32 decrypt_err_cnt;
+	u32 decrypt_ok_cnt;
+};
+
+struct wcn36xx_hal_stats_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Valid STA Idx for per STA stats request */
+	u32 sta_id;
+
+	/* Categories of stats requested as specified in eHalStatsMask */
+	u32 stats_mask;
+};
+
+struct ani_summary_stats_info {
+	/* Total number of packets(per AC) that were successfully
+	 * transmitted with retries */
+	u32 retry_cnt[4];
+
+	/* The number of MSDU packets and MMPDU frames per AC that the
+	 * 802.11 station successfully transmitted after more than one
+	 * retransmission attempt */
+	u32 multiple_retry_cnt[4];
+
+	/* Total number of packets(per AC) that were successfully
+	 * transmitted (with and without retries, including multi-cast,
+	 * broadcast) */
+	u32 tx_frm_cnt[4];
+
+	/* Total number of packets that were successfully received (after
+	 * appropriate filter rules including multi-cast, broadcast) */
+	u32 rx_frm_cnt;
+
+	/* Total number of duplicate frames received successfully */
+	u32 frm_dup_cnt;
+
+	/* Total number packets(per AC) failed to transmit */
+	u32 fail_cnt[4];
+
+	/* Total number of RTS/CTS sequence failures for transmission of a
+	 * packet */
+	u32 rts_fail_cnt;
+
+	/* Total number packets failed transmit because of no ACK from the
+	 * remote entity */
+	u32 ack_fail_cnt;
+
+	/* Total number of RTS/CTS sequence success for transmission of a
+	 * packet */
+	u32 rts_succ_cnt;
+
+	/* The sum of the receive error count and dropped-receive-buffer
+	 * error count. HAL will provide this as a sum of (FCS error) +
+	 * (Fail get BD/PDU in HW) */
+	u32 rx_discard_cnt;
+
+	/*
+	 * The receive error count. HAL will provide the RxP FCS error
+	 * global counter. */
+	u32 rx_error_cnt;
+
+	/* The sum of the transmit-directed byte count, transmit-multicast
+	 * byte count and transmit-broadcast byte count. HAL will sum TPE
+	 * UC/MC/BCAST global counters to provide this. */
+	u32 tx_byte_cnt;
+};
+
+/* defines tx_rate_flags */
+enum tx_rate_info {
+	/* Legacy rates */
+	HAL_TX_RATE_LEGACY = 0x1,
+
+	/* HT20 rates */
+	HAL_TX_RATE_HT20 = 0x2,
+
+	/* HT40 rates */
+	HAL_TX_RATE_HT40 = 0x4,
+
+	/* Rate with Short guard interval */
+	HAL_TX_RATE_SGI = 0x8,
+
+	/* Rate with Long guard interval */
+	HAL_TX_RATE_LGI = 0x10
+};
+
+struct ani_global_class_a_stats_info {
+	/* The number of MPDU frames received by the 802.11 station for
+	 * MSDU packets or MMPDU frames */
+	u32 rx_frag_cnt;
+
+	/* The number of MPDU frames received by the 802.11 station for
+	 * MSDU packets or MMPDU frames when a promiscuous packet filter
+	 * was enabled */
+	u32 promiscuous_rx_frag_cnt;
+
+	/* The receiver input sensitivity referenced to a FER of 8% at an
+	 * MPDU length of 1024 bytes at the antenna connector. Each element
+	 * of the array shall correspond to a supported rate and the order
+	 * shall be the same as the supporteRates parameter. */
+	u32 rx_input_sensitivity;
+
+	/* The maximum transmit power in dBm upto one decimal. for eg: if
+	 * it is 10.5dBm, the value would be 105 */
+	u32 max_pwr;
+
+	/* Number of times the receiver failed to synchronize with the
+	 * incoming signal after detecting the sync in the preamble of the
+	 * transmitted PLCP protocol data unit. */
+	u32 sync_fail_cnt;
+
+	/* Legacy transmit rate, in units of 500 kbit/sec, for the most
+	 * recently transmitted frame */
+	u32 tx_rate;
+
+	/* mcs index for HT20 and HT40 rates */
+	u32 mcs_index;
+
+	/* to differentiate between HT20 and HT40 rates; short and long
+	 * guard interval */
+	u32 tx_rate_flags;
+};
+
+struct ani_global_security_stats {
+	/* The number of unencrypted received MPDU frames that the MAC
+	 * layer discarded when the IEEE 802.11 dot11ExcludeUnencrypted
+	 * management information base (MIB) object is enabled */
+	u32 rx_wep_unencrypted_frm_cnt;
+
+	/* The number of received MSDU packets that that the 802.11 station
+	 * discarded because of MIC failures */
+	u32 rx_mic_fail_cnt;
+
+	/* The number of encrypted MPDU frames that the 802.11 station
+	 * failed to decrypt because of a TKIP ICV error */
+	u32 tkip_icv_err;
+
+	/* The number of received MPDU frames that the 802.11 discarded
+	 * because of an invalid AES-CCMP format */
+	u32 aes_ccmp_format_err;
+
+	/* The number of received MPDU frames that the 802.11 station
+	 * discarded because of the AES-CCMP replay protection procedure */
+	u32 aes_ccmp_replay_cnt;
+
+	/* The number of received MPDU frames that the 802.11 station
+	 * discarded because of errors detected by the AES-CCMP decryption
+	 * algorithm */
+	u32 aes_ccmp_decrpt_err;
+
+	/* The number of encrypted MPDU frames received for which a WEP
+	 * decryption key was not available on the 802.11 station */
+	u32 wep_undecryptable_cnt;
+
+	/* The number of encrypted MPDU frames that the 802.11 station
+	 * failed to decrypt because of a WEP ICV error */
+	u32 wep_icv_err;
+
+	/* The number of received encrypted packets that the 802.11 station
+	 * successfully decrypted */
+	u32 rx_decrypt_succ_cnt;
+
+	/* The number of encrypted packets that the 802.11 station failed
+	 * to decrypt */
+	u32 rx_decrypt_fail_cnt;
+};
+
+struct ani_global_class_b_stats_info {
+	struct ani_global_security_stats uc_stats;
+	struct ani_global_security_stats mc_bc_stats;
+};
+
+struct ani_global_class_c_stats_info {
+	/* This counter shall be incremented for a received A-MSDU frame
+	 * with the stations MAC address in the address 1 field or an
+	 * A-MSDU frame with a group address in the address 1 field */
+	u32 rx_amsdu_cnt;
+
+	/* This counter shall be incremented when the MAC receives an AMPDU
+	 * from the PHY */
+	u32 rx_ampdu_cnt;
+
+	/* This counter shall be incremented when a Frame is transmitted
+	 * only on the primary channel */
+	u32 tx_20_frm_cnt;
+
+	/* This counter shall be incremented when a Frame is received only
+	 * on the primary channel */
+	u32 rx_20_frm_cnt;
+
+	/* This counter shall be incremented by the number of MPDUs
+	 * received in the A-MPDU when an A-MPDU is received */
+	u32 rx_mpdu_in_ampdu_cnt;
+
+	/* This counter shall be incremented when an MPDU delimiter has a
+	 * CRC error when this is the first CRC error in the received AMPDU
+	 * or when the previous delimiter has been decoded correctly */
+	u32 ampdu_delimiter_crc_err;
+};
+
+struct ani_per_sta_stats_info {
+	/* The number of MPDU frames that the 802.11 station transmitted
+	 * and acknowledged through a received 802.11 ACK frame */
+	u32 tx_frag_cnt[4];
+
+	/* This counter shall be incremented when an A-MPDU is transmitted */
+	u32 tx_ampdu_cnt;
+
+	/* This counter shall increment by the number of MPDUs in the AMPDU
+	 * when an A-MPDU is transmitted */
+	u32 tx_mpdu_in_ampdu_cnt;
+};
+
+struct wcn36xx_hal_stats_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure */
+	u32 status;
+
+	/* STA Idx */
+	u32 sta_index;
+
+	/* Categories of STATS being returned as per eHalStatsMask */
+	u32 stats_mask;
+
+	/* message type is same as the request type */
+	u16 msg_type;
+
+	/* length of the entire request, includes the pStatsBuf length too */
+	u16 msg_len;
+};
+
+struct wcn36xx_hal_set_link_state_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bssid[ETH_ALEN];
+	enum wcn36xx_hal_link_state state;
+	u8 self_mac_addr[ETH_ALEN];
+
+} __packed;
+
+struct set_link_state_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+/* TSPEC Params */
+struct wcn36xx_hal_ts_info_tfc {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u16 ackPolicy:2;
+	u16 userPrio:3;
+	u16 psb:1;
+	u16 aggregation:1;
+	u16 accessPolicy:2;
+	u16 direction:2;
+	u16 tsid:4;
+	u16 trafficType:1;
+#else
+	u16 trafficType:1;
+	u16 tsid:4;
+	u16 direction:2;
+	u16 accessPolicy:2;
+	u16 aggregation:1;
+	u16 psb:1;
+	u16 userPrio:3;
+	u16 ackPolicy:2;
+#endif
+};
+
+/* Flag to schedule the traffic type */
+struct wcn36xx_hal_ts_info_sch {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u8 rsvd:7;
+	u8 schedule:1;
+#else
+	u8 schedule:1;
+	u8 rsvd:7;
+#endif
+};
+
+/* Traffic and scheduling info */
+struct wcn36xx_hal_ts_info {
+	struct wcn36xx_hal_ts_info_tfc traffic;
+	struct wcn36xx_hal_ts_info_sch schedule;
+};
+
+/* Information elements */
+struct wcn36xx_hal_tspec_ie {
+	u8 type;
+	u8 length;
+	struct wcn36xx_hal_ts_info ts_info;
+	u16 nom_msdu_size;
+	u16 max_msdu_size;
+	u32 min_svc_interval;
+	u32 max_svc_interval;
+	u32 inact_interval;
+	u32 suspend_interval;
+	u32 svc_start_time;
+	u32 min_data_rate;
+	u32 mean_data_rate;
+	u32 peak_data_rate;
+	u32 max_burst_sz;
+	u32 delay_bound;
+	u32 min_phy_rate;
+	u16 surplus_bw;
+	u16 medium_time;
+};
+
+struct add_ts_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* TSPEC handler uniquely identifying a TSPEC for a STA in a BSS */
+	u16 tspec_index;
+
+	/* To program TPE with required parameters */
+	struct wcn36xx_hal_tspec_ie tspec;
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* These parameters are for all the access categories */
+
+	/* Service Interval */
+	u32 service_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Suspend Interval */
+	u32 suspend_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Delay Interval */
+	u32 delay_interval[WCN36XX_HAL_MAX_AC];
+};
+
+struct add_rs_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct del_ts_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* TSPEC identifier uniquely identifying a TSPEC for a STA in a BSS */
+	u16 tspec_index;
+
+	/* To lookup station id using the mac address */
+	u8 bssid[ETH_ALEN];
+};
+
+struct del_ts_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+/* End of TSpec Parameters */
+
+/* Start of BLOCK ACK related Parameters */
+
+struct wcn36xx_hal_add_ba_session_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* Peer MAC Address */
+	u8 mac_addr[ETH_ALEN];
+
+	/* ADDBA Action Frame dialog token
+	   HAL will not interpret this object */
+	u8 dialog_token;
+
+	/* TID for which the BA is being setup
+	   This identifies the TC or TS of interest */
+	u8 tid;
+
+	/* 0 - Delayed BA (Not supported)
+	   1 - Immediate BA */
+	u8 policy;
+
+	/* Indicates the number of buffers for this TID (baTID)
+	   NOTE - This is the requested buffer size. When this
+	   is processed by HAL and subsequently by HDD, it is
+	   possible that HDD may change this buffer size. Any
+	   change in the buffer size should be noted by PE and
+	   advertized appropriately in the ADDBA response */
+	u16 buffer_size;
+
+	/* BA timeout in TU's 0 means no timeout will occur */
+	u16 timeout;
+
+	/* b0..b3 - Fragment Number - Always set to 0
+	   b4..b15 - Starting Sequence Number of first MSDU
+	   for which this BA is setup */
+	u16 ssn;
+
+	/* ADDBA direction
+	   1 - Originator
+	   0 - Recipient */
+	u8 direction;
+} __packed;
+
+struct wcn36xx_hal_add_ba_session_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Dialog token */
+	u8 dialog_token;
+
+	/* TID for which the BA session has been setup */
+	u8 ba_tid;
+
+	/* BA Buffer Size allocated for the current BA session */
+	u8 ba_buffer_size;
+
+	u8 ba_session_id;
+
+	/* Reordering Window buffer */
+	u8 win_size;
+
+	/* Station Index to id the sta */
+	u8 sta_index;
+
+	/* Starting Sequence Number */
+	u16 ssn;
+} __packed;
+
+struct wcn36xx_hal_add_ba_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Session Id */
+	u8 session_id;
+
+	/* Reorder Window Size */
+	u8 win_size;
+/* Old FW 1.2.2.4 does not support this*/
+#ifdef FEATURE_ON_CHIP_REORDERING
+	u8 reordering_done_on_chip;
+#endif
+} __packed;
+
+struct wcn36xx_hal_add_ba_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Dialog token */
+	u8 dialog_token;
+} __packed;
+
+struct add_ba_info {
+	u16 ba_enable:1;
+	u16 starting_seq_num:12;
+	u16 reserved:3;
+};
+
+struct wcn36xx_hal_trigger_ba_rsp_candidate {
+	u8 sta_addr[ETH_ALEN];
+	struct add_ba_info ba_info[STACFG_MAX_TC];
+} __packed;
+
+struct wcn36xx_hal_trigget_ba_req_candidate {
+	u8 sta_index;
+	u8 tid_bitmap;
+} __packed;
+
+struct wcn36xx_hal_trigger_ba_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Session Id */
+	u8 session_id;
+
+	/* baCandidateCnt is followed by trigger BA
+	 * Candidate List(tTriggerBaCandidate)
+	 */
+	u16 candidate_cnt;
+
+} __packed;
+
+struct wcn36xx_hal_trigger_ba_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* TO SUPPORT BT-AMP */
+	u8 bssid[ETH_ALEN];
+
+	/* success or failure */
+	u32 status;
+
+	/* baCandidateCnt is followed by trigger BA
+	 * Rsp Candidate List(tTriggerRspBaCandidate)
+	 */
+	u16 candidate_cnt;
+} __packed;
+
+struct wcn36xx_hal_del_ba_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* TID for which the BA session is being deleted */
+	u8 tid;
+
+	/* DELBA direction
+	   1 - Originator
+	   0 - Recipient */
+	u8 direction;
+} __packed;
+
+struct wcn36xx_hal_del_ba_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct tsm_stats_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Traffic Id */
+	u8 tid;
+
+	u8 bssid[ETH_ALEN];
+};
+
+struct tsm_stats_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*success or failure */
+	u32 status;
+
+	/* Uplink Packet Queue delay */
+	u16 uplink_pkt_queue_delay;
+
+	/* Uplink Packet Queue delay histogram */
+	u16 uplink_pkt_queue_delay_hist[4];
+
+	/* Uplink Packet Transmit delay */
+	u32 uplink_pkt_tx_delay;
+
+	/* Uplink Packet loss */
+	u16 uplink_pkt_loss;
+
+	/* Uplink Packet count */
+	u16 uplink_pkt_count;
+
+	/* Roaming count */
+	u8 roaming_count;
+
+	/* Roaming Delay */
+	u16 roaming_delay;
+};
+
+struct set_key_done_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*bssid of the keys */
+	u8 bssidx;
+	u8 enc_type;
+};
+
+struct wcn36xx_hal_nv_img_download_req_msg {
+	/* Note: The length specified in wcn36xx_hal_nv_img_download_req_msg
+	 * messages should be
+	 * header.len = sizeof(wcn36xx_hal_nv_img_download_req_msg) +
+	 * nv_img_buffer_size */
+	struct wcn36xx_hal_msg_header header;
+
+	/* Fragment sequence number of the NV Image. Note that NV Image
+	 * might not fit into one message due to size limitation of the SMD
+	 * channel FIFO. UMAC can hence choose to chop the NV blob into
+	 * multiple fragments starting with seqeunce number 0, 1, 2 etc.
+	 * The last fragment MUST be indicated by marking the
+	 * isLastFragment field to 1. Note that all the NV blobs would be
+	 * concatenated together by HAL without any padding bytes in
+	 * between.*/
+	u16 frag_number;
+
+	/* Is this the last fragment? When set to 1 it indicates that no
+	 * more fragments will be sent by UMAC and HAL can concatenate all
+	 * the NV blobs rcvd & proceed with the parsing. HAL would generate
+	 * a WCN36XX_HAL_DOWNLOAD_NV_RSP to the WCN36XX_HAL_DOWNLOAD_NV_REQ
+	 * after it receives each fragment */
+	u16 last_fragment;
+
+	/* NV Image size (number of bytes) */
+	u32 nv_img_buffer_size;
+
+	/* Following the 'nv_img_buffer_size', there should be
+	 * nv_img_buffer_size bytes of NV Image i.e.
+	 * u8[nv_img_buffer_size] */
+} __packed;
+
+struct wcn36xx_hal_nv_img_download_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure. HAL would generate a
+	 * WCN36XX_HAL_DOWNLOAD_NV_RSP after each fragment */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_nv_store_ind {
+	/* Note: The length specified in tHalNvStoreInd messages should be
+	 * header.msgLen = sizeof(tHalNvStoreInd) + nvBlobSize */
+	struct wcn36xx_hal_msg_header header;
+
+	/* NV Item */
+	u32 table_id;
+
+	/* Size of NV Blob */
+	u32 nv_blob_size;
+
+	/* Following the 'nvBlobSize', there should be nvBlobSize bytes of
+	 * NV blob i.e. u8[nvBlobSize] */
+};
+
+/* End of Block Ack Related Parameters */
+
+#define WCN36XX_HAL_CIPHER_SEQ_CTR_SIZE 6
+
+/* Definition for MIC failure indication MAC reports this each time a MIC
+ * failure occures on Rx TKIP packet
+ */
+struct mic_failure_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bssid[ETH_ALEN];
+
+	/* address used to compute MIC */
+	u8 src_addr[ETH_ALEN];
+
+	/* transmitter address */
+	u8 ta_addr[ETH_ALEN];
+
+	u8 dst_addr[ETH_ALEN];
+
+	u8 multicast;
+
+	/* first byte of IV */
+	u8 iv1;
+
+	/* second byte of IV */
+	u8 key_id;
+
+	/* sequence number */
+	u8 tsc[WCN36XX_HAL_CIPHER_SEQ_CTR_SIZE];
+
+	/* receive address */
+	u8 rx_addr[ETH_ALEN];
+};
+
+struct update_vht_op_mode_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 op_mode;
+	u16 sta_id;
+};
+
+struct update_vht_op_mode_params_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 status;
+};
+
+struct update_beacon_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+
+	/* shortPreamble mode. HAL should update all the STA rates when it
+	 * receives this message */
+	u8 short_preamble;
+
+	/* short Slot time. */
+	u8 short_slot_time;
+
+	/* Beacon Interval */
+	u16 beacon_interval;
+
+	/* Protection related */
+	u8 lla_coexist;
+	u8 llb_coexist;
+	u8 llg_coexist;
+	u8 ht20_coexist;
+	u8 lln_non_gf_coexist;
+	u8 lsig_tx_op_protection_full_support;
+	u8 rifs_mode;
+
+	u16 param_change_bitmap;
+};
+
+struct update_beacon_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	u32 status;
+};
+
+struct wcn36xx_hal_send_beacon_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* length of the template. */
+	u32 beacon_length;
+
+	/* Beacon data. */
+	u8 beacon[BEACON_TEMPLATE_SIZE];
+
+	u8 bssid[ETH_ALEN];
+
+	/* TIM IE offset from the beginning of the template. */
+	u32 tim_ie_offset;
+
+	/* P2P IE offset from the begining of the template */
+	u16 p2p_ie_offset;
+} __packed;
+
+struct send_beacon_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	u32 status;
+} __packed;
+
+struct enable_radar_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bssid[ETH_ALEN];
+	u8 channel;
+};
+
+struct enable_radar_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Link Parameters */
+	u8 bssid[ETH_ALEN];
+
+	/* success or failure */
+	u32 status;
+};
+
+struct radar_detect_intr_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 radar_det_channel;
+};
+
+struct radar_detect_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* channel number in which the RADAR detected */
+	u8 channel_number;
+
+	/* RADAR pulse width in usecond */
+	u16 radar_pulse_width;
+
+	/* Number of RADAR pulses */
+	u16 num_radar_pulse;
+};
+
+struct wcn36xx_hal_get_tpc_report_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 sta[ETH_ALEN];
+	u8 dialog_token;
+	u8 txpower;
+};
+
+struct wcn36xx_hal_get_tpc_report_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_send_probe_resp_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 probe_resp_template[BEACON_TEMPLATE_SIZE];
+	u32 probe_resp_template_len;
+	u32 proxy_probe_req_valid_ie_bmap[8];
+	u8 bssid[ETH_ALEN];
+};
+
+struct send_probe_resp_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct send_unknown_frame_rx_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_delete_sta_context_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 aid;
+	u16 sta_id;
+
+	/* TO SUPPORT BT-AMP */
+	u8 bssid[ETH_ALEN];
+
+	/* HAL copies bssid from the sta table. */
+	u8 addr2[ETH_ALEN];
+
+	/* To unify the keepalive / unknown A2 / tim-based disa */
+	u16 reason_code;
+} __packed;
+
+struct indicate_del_sta {
+	struct wcn36xx_hal_msg_header header;
+	u8 aid;
+	u8 sta_index;
+	u8 bss_index;
+	u8 reason_code;
+	u32 status;
+};
+
+struct bt_amp_event_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	enum bt_amp_event_type btAmpEventType;
+};
+
+struct bt_amp_event_rsp {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct tl_hal_flush_ac_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index. originates from HAL */
+	u8 sta_id;
+
+	/* TID for which the transmit queue is being flushed */
+	u8 tid;
+};
+
+struct tl_hal_flush_ac_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index. originates from HAL */
+	u8 sta_id;
+
+	/* TID for which the transmit queue is being flushed */
+	u8 tid;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_enter_imps_req_msg {
+	struct wcn36xx_hal_msg_header header;
+};
+
+struct wcn36xx_hal_exit_imps_req {
+	struct wcn36xx_hal_msg_header header;
+};
+
+struct wcn36xx_hal_enter_bmps_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+
+	/* TBTT value derived from the last beacon */
+#ifndef BUILD_QWPTTSTATIC
+	u64 tbtt;
+#endif
+	u8 dtim_count;
+
+	/* DTIM period given to HAL during association may not be valid, if
+	 * association is based on ProbeRsp instead of beacon. */
+	u8 dtim_period;
+
+	/* For CCX and 11R Roaming */
+	u32 rssi_filter_period;
+
+	u32 num_beacon_per_rssi_average;
+	u8 rssi_filter_enable;
+} __packed;
+
+struct wcn36xx_hal_exit_bmps_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 send_data_null;
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_missed_beacon_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+} __packed;
+
+/* Beacon Filtering data structures */
+
+/* The above structure would be followed by multiple of below mentioned
+ * structure
+ */
+struct beacon_filter_ie {
+	u8 element_id;
+	u8 check_ie_presence;
+	u8 offset;
+	u8 value;
+	u8 bitmask;
+	u8 ref;
+};
+
+struct wcn36xx_hal_add_bcn_filter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 capability_info;
+	u16 capability_mask;
+	u16 beacon_interval;
+	u16 ie_num;
+	u8 bss_index;
+	u8 reserved;
+};
+
+struct wcn36xx_hal_rem_bcn_filter_req {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 ie_Count;
+	u8 rem_ie_id[1];
+};
+
+#define WCN36XX_HAL_IPV4_ARP_REPLY_OFFLOAD                  0
+#define WCN36XX_HAL_IPV6_NEIGHBOR_DISCOVERY_OFFLOAD         1
+#define WCN36XX_HAL_IPV6_NS_OFFLOAD                         2
+#define WCN36XX_HAL_IPV6_ADDR_LEN                           16
+#define WCN36XX_HAL_OFFLOAD_DISABLE                         0
+#define WCN36XX_HAL_OFFLOAD_ENABLE                          1
+#define WCN36XX_HAL_OFFLOAD_BCAST_FILTER_ENABLE             0x2
+#define WCN36XX_HAL_OFFLOAD_ARP_AND_BCAST_FILTER_ENABLE	\
+	(HAL_OFFLOAD_ENABLE|HAL_OFFLOAD_BCAST_FILTER_ENABLE)
+
+struct wcn36xx_hal_ns_offload_params {
+	u8 src_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];
+	u8 self_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];
+
+	/* Only support 2 possible Network Advertisement IPv6 address */
+	u8 target_ipv6_addr1[WCN36XX_HAL_IPV6_ADDR_LEN];
+	u8 target_ipv6_addr2[WCN36XX_HAL_IPV6_ADDR_LEN];
+
+	u8 self_addr[ETH_ALEN];
+	u8 src_ipv6_addr_valid:1;
+	u8 target_ipv6_addr1_valid:1;
+	u8 target_ipv6_addr2_valid:1;
+	u8 reserved1:5;
+
+	/* make it DWORD aligned */
+	u8 reserved2;
+
+	/* slot index for this offload */
+	u32 slot_index;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_host_offload_req {
+	u8 offload_Type;
+
+	/* enable or disable */
+	u8 enable;
+
+	union {
+		u8 host_ipv4_addr[4];
+		u8 host_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];
+	} u;
+};
+
+struct wcn36xx_hal_host_offload_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_host_offload_req host_offload_params;
+	struct wcn36xx_hal_ns_offload_params ns_offload_params;
+};
+
+/* Packet Types. */
+#define WCN36XX_HAL_KEEP_ALIVE_NULL_PKT              1
+#define WCN36XX_HAL_KEEP_ALIVE_UNSOLICIT_ARP_RSP     2
+
+/* Enable or disable keep alive */
+#define WCN36XX_HAL_KEEP_ALIVE_DISABLE   0
+#define WCN36XX_HAL_KEEP_ALIVE_ENABLE    1
+#define WCN36XX_KEEP_ALIVE_TIME_PERIOD	 30 /* unit: s */
+
+/* Keep Alive request. */
+struct wcn36xx_hal_keep_alive_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 packet_type;
+	u32 time_period;
+	u8 host_ipv4_addr[WCN36XX_HAL_IPV4_ADDR_LEN];
+	u8 dest_ipv4_addr[WCN36XX_HAL_IPV4_ADDR_LEN];
+	u8 dest_addr[ETH_ALEN];
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_rssi_threshold_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	s8 threshold1:8;
+	s8 threshold2:8;
+	s8 threshold3:8;
+	u8 thres1_pos_notify:1;
+	u8 thres1_neg_notify:1;
+	u8 thres2_pos_notify:1;
+	u8 thres2_neg_notify:1;
+	u8 thres3_pos_notify:1;
+	u8 thres3_neg_notify:1;
+	u8 reserved10:2;
+};
+
+struct wcn36xx_hal_enter_uapsd_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bk_delivery:1;
+	u8 be_delivery:1;
+	u8 vi_delivery:1;
+	u8 vo_delivery:1;
+	u8 bk_trigger:1;
+	u8 be_trigger:1;
+	u8 vi_trigger:1;
+	u8 vo_trigger:1;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_exit_uapsd_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	u8 bss_index;
+};
+
+#define WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE 128
+#define WCN36XX_HAL_WOWL_BCAST_MAX_NUM_PATTERNS 16
+
+struct wcn36xx_hal_wowl_add_bcast_ptrn_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Pattern ID */
+	u8 id;
+
+	/* Pattern byte offset from beginning of the 802.11 packet to start
+	 * of the wake-up pattern */
+	u8 byte_Offset;
+
+	/* Non-Zero Pattern size */
+	u8 size;
+
+	/* Pattern */
+	u8 pattern[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	/* Non-zero pattern mask size */
+	u8 mask_size;
+
+	/* Pattern mask */
+	u8 mask[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	/* Extra pattern */
+	u8 extra[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	/* Extra pattern mask */
+	u8 mask_extra[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wow_del_bcast_ptrn_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Pattern ID of the wakeup pattern to be deleted */
+	u8 id;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wowl_enter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Enables/disables magic packet filtering */
+	u8 magic_packet_enable;
+
+	/* Magic pattern */
+	u8 magic_pattern[ETH_ALEN];
+
+	/* Enables/disables packet pattern filtering in firmware. Enabling
+	 * this flag enables broadcast pattern matching in Firmware. If
+	 * unicast pattern matching is also desired,
+	 * ucUcastPatternFilteringEnable flag must be set tot true as well
+	 */
+	u8 pattern_filtering_enable;
+
+	/* Enables/disables unicast packet pattern filtering. This flag
+	 * specifies whether we want to do pattern match on unicast packets
+	 * as well and not just broadcast packets. This flag has no effect
+	 * if the ucPatternFilteringEnable (main controlling flag) is set
+	 * to false
+	 */
+	u8 ucast_pattern_filtering_enable;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it receives the Channel Switch
+	 * Action Frame.
+	 */
+	u8 wow_channel_switch_receive;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it receives the
+	 * Deauthentication Frame.
+	 */
+	u8 wow_deauth_receive;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it receives the Disassociation
+	 * Frame.
+	 */
+	u8 wow_disassoc_receive;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it has missed consecutive
+	 * beacons. This is a hardware register configuration (NOT a
+	 * firmware configuration).
+	 */
+	u8 wow_max_missed_beacons;
+
+	/* This configuration is valid only when magicPktEnable=1. This is
+	 * a timeout value in units of microsec. It requests hardware to
+	 * unconditionally wake up after it has stayed in WoWLAN mode for
+	 * some time. Set 0 to disable this feature.
+	 */
+	u8 wow_max_sleep;
+
+	/* This configuration directs the WoW packet filtering to look for
+	 * EAP-ID requests embedded in EAPOL frames and use this as a wake
+	 * source.
+	 */
+	u8 wow_eap_id_request_enable;
+
+	/* This configuration directs the WoW packet filtering to look for
+	 * EAPOL-4WAY requests and use this as a wake source.
+	 */
+	u8 wow_eapol_4way_enable;
+
+	/* This configuration allows a host wakeup on an network scan
+	 * offload match.
+	 */
+	u8 wow_net_scan_offload_match;
+
+	/* This configuration allows a host wakeup on any GTK rekeying
+	 * error.
+	 */
+	u8 wow_gtk_rekey_error;
+
+	/* This configuration allows a host wakeup on BSS connection loss.
+	 */
+	u8 wow_bss_connection_loss;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wowl_exit_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_get_rssi_req_msg {
+	struct wcn36xx_hal_msg_header header;
+};
+
+struct wcn36xx_hal_get_roam_rssi_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Valid STA Idx for per STA stats request */
+	u32 sta_id;
+};
+
+struct wcn36xx_hal_set_uapsd_ac_params_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* STA index */
+	u8 sta_idx;
+
+	/* Access Category */
+	u8 ac;
+
+	/* User Priority */
+	u8 up;
+
+	/* Service Interval */
+	u32 service_interval;
+
+	/* Suspend Interval */
+	u32 suspend_interval;
+
+	/* Delay Interval */
+	u32 delay_interval;
+};
+
+struct wcn36xx_hal_configure_rxp_filter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 set_mcst_bcst_filter_setting;
+	u8 set_mcst_bcst_filter;
+};
+
+struct wcn36xx_hal_enter_imps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_exit_imps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_enter_bmps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_exit_bmps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_enter_uapsd_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_exit_uapsd_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rssi_notification_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 rssi_thres1_pos_cross:1;
+	u32 rssi_thres1_neg_cross:1;
+	u32 rssi_thres2_pos_cross:1;
+	u32 rssi_thres2_neg_cross:1;
+	u32 rssi_thres3_pos_cross:1;
+	u32 rssi_thres3_neg_cross:1;
+	u32 avg_rssi:8;
+	u32 reserved:18;
+
+};
+
+struct wcn36xx_hal_get_rssio_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	s8 rssi;
+
+};
+
+struct wcn36xx_hal_get_roam_rssi_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 sta_id;
+	s8 rssi;
+};
+
+struct wcn36xx_hal_wowl_enter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wowl_exit_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_add_bcn_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_rem_bcn_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_add_wowl_bcast_ptrn_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_del_wowl_bcast_ptrn_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_host_offload_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_keep_alive_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_set_rssi_thresh_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_set_uapsd_ac_params_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_configure_rxp_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct set_max_tx_pwr_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSSID is needed to identify which session issued this request.
+	 * As the request has power constraints, this should be applied
+	 * only to that session */
+	u8 bssid[ETH_ALEN];
+
+	u8 self_addr[ETH_ALEN];
+
+	/* In request, power == MaxTx power to be used. */
+	u8 power;
+};
+
+struct set_max_tx_pwr_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* power == tx power used for management frames */
+	u8 power;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct set_tx_pwr_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* TX Power in milli watts */
+	u32 tx_power;
+
+	u8 bss_index;
+};
+
+struct set_tx_pwr_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct get_tx_pwr_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 sta_id;
+};
+
+struct get_tx_pwr_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* TX Power in milli watts */
+	u32 tx_power;
+};
+
+struct set_p2p_gonoa_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 opp_ps;
+	u32 ct_window;
+	u8 count;
+	u32 duration;
+	u32 interval;
+	u32 single_noa_duration;
+	u8 ps_selection;
+};
+
+struct set_p2p_gonoa_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_add_sta_self_req {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 self_addr[ETH_ALEN];
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_add_sta_self_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Self STA Index */
+	u8 self_sta_index;
+
+	/* DPU Index (IGTK, PTK, GTK all same) */
+	u8 dpu_index;
+
+	/* DPU Signature */
+	u8 dpu_signature;
+} __packed;
+
+struct wcn36xx_hal_del_sta_self_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 self_addr[ETH_ALEN];
+} __packed;
+
+struct wcn36xx_hal_del_sta_self_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*success or failure */
+	u32 status;
+
+	u8 self_addr[ETH_ALEN];
+} __packed;
+
+struct aggr_add_ts_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_idx;
+
+	/* TSPEC handler uniquely identifying a TSPEC for a STA in a BSS.
+	 * This will carry the bitmap with the bit positions representing
+	 * different AC.s */
+	u16 tspec_index;
+
+	/* Tspec info per AC To program TPE with required parameters */
+	struct wcn36xx_hal_tspec_ie tspec[WCN36XX_HAL_MAX_AC];
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* These parameters are for all the access categories */
+
+	/* Service Interval */
+	u32 service_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Suspend Interval */
+	u32 suspend_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Delay Interval */
+	u32 delay_interval[WCN36XX_HAL_MAX_AC];
+};
+
+struct aggr_add_ts_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status0;
+
+	/* FIXME PRIMA for future use for 11R */
+	u32 status1;
+};
+
+struct wcn36xx_hal_configure_apps_cpu_wakeup_state_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 is_apps_cpu_awake;
+};
+
+struct wcn36xx_hal_configure_apps_cpu_wakeup_state_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_dump_cmd_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 arg1;
+	u32 arg2;
+	u32 arg3;
+	u32 arg4;
+	u32 arg5;
+} __packed;
+
+struct wcn36xx_hal_dump_cmd_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Length of the responce message */
+	u32 rsp_length;
+
+	/* FIXME: Currently considering the the responce will be less than
+	 * 100bytes */
+	u8 rsp_buffer[DUMPCMD_RSP_BUFFER];
+} __packed;
+
+#define WLAN_COEX_IND_DATA_SIZE (4)
+#define WLAN_COEX_IND_TYPE_DISABLE_HB_MONITOR (0)
+#define WLAN_COEX_IND_TYPE_ENABLE_HB_MONITOR (1)
+
+struct coex_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Coex Indication Type */
+	u32 type;
+
+	/* Coex Indication Data */
+	u32 data[WLAN_COEX_IND_DATA_SIZE];
+};
+
+struct wcn36xx_hal_tx_compl_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Tx Complete Indication Success or Failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_wlan_host_suspend_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 configured_mcst_bcst_filter_setting;
+	u32 active_session_count;
+};
+
+struct wcn36xx_hal_wlan_exclude_unencrpted_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 dot11_exclude_unencrypted;
+	u8 bssid[ETH_ALEN];
+};
+
+struct noa_attr_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 index;
+	u8 opp_ps_flag;
+	u16 ctwin;
+
+	u16 noa1_interval_count;
+	u16 bss_index;
+	u32 noa1_duration;
+	u32 noa1_interval;
+	u32 noa1_starttime;
+
+	u16 noa2_interval_count;
+	u16 reserved2;
+	u32 noa2_duration;
+	u32 noa2_interval;
+	u32 noa2_start_time;
+
+	u32 status;
+};
+
+struct noa_start_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 status;
+	u32 bss_index;
+};
+
+struct wcn36xx_hal_wlan_host_resume_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 configured_mcst_bcst_filter_setting;
+};
+
+struct wcn36xx_hal_host_resume_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_del_ba_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 sta_idx;
+
+	/* Peer MAC Address, whose BA session has timed out */
+	u8 peer_addr[ETH_ALEN];
+
+	/* TID for which a BA session timeout is being triggered */
+	u8 ba_tid;
+
+	/* DELBA direction
+	 * 1 - Originator
+	 * 0 - Recipient
+	 */
+	u8 direction;
+
+	u32 reason_code;
+
+	/* TO SUPPORT BT-AMP */
+	u8 bssid[ETH_ALEN];
+};
+
+/* PNO Messages */
+
+/* Max number of channels that a network can be found on */
+#define WCN36XX_HAL_PNO_MAX_NETW_CHANNELS  26
+
+/* Max number of channels that a network can be found on */
+#define WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX  60
+
+/* Maximum numbers of networks supported by PNO */
+#define WCN36XX_HAL_PNO_MAX_SUPP_NETWORKS  16
+
+/* The number of scan time intervals that can be programmed into PNO */
+#define WCN36XX_HAL_PNO_MAX_SCAN_TIMERS    10
+
+/* Maximum size of the probe template */
+#define WCN36XX_HAL_PNO_MAX_PROBE_SIZE     450
+
+/* Type of PNO enabling:
+ *
+ * Immediate - scanning will start immediately and PNO procedure will be
+ * repeated based on timer
+ *
+ * Suspend - scanning will start at suspend
+ *
+ * Resume - scanning will start on system resume
+ */
+enum pno_mode {
+	PNO_MODE_IMMEDIATE,
+	PNO_MODE_ON_SUSPEND,
+	PNO_MODE_ON_RESUME,
+	PNO_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Authentication type */
+enum auth_type {
+	AUTH_TYPE_ANY = 0,
+	AUTH_TYPE_OPEN_SYSTEM = 1,
+
+	/* Upper layer authentication types */
+	AUTH_TYPE_WPA = 2,
+	AUTH_TYPE_WPA_PSK = 3,
+
+	AUTH_TYPE_RSN = 4,
+	AUTH_TYPE_RSN_PSK = 5,
+	AUTH_TYPE_FT_RSN = 6,
+	AUTH_TYPE_FT_RSN_PSK = 7,
+	AUTH_TYPE_WAPI_WAI_CERTIFICATE = 8,
+	AUTH_TYPE_WAPI_WAI_PSK = 9,
+
+	AUTH_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Encryption type */
+enum ed_type {
+	ED_ANY = 0,
+	ED_NONE = 1,
+	ED_WEP = 2,
+	ED_TKIP = 3,
+	ED_CCMP = 4,
+	ED_WPI = 5,
+
+	ED_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* SSID broadcast  type */
+enum ssid_bcast_type {
+	BCAST_UNKNOWN = 0,
+	BCAST_NORMAL = 1,
+	BCAST_HIDDEN = 2,
+
+	BCAST_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* The network description for which PNO will have to look for */
+struct network_type {
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Authentication type for the network */
+	enum auth_type authentication;
+
+	/* Encryption type for the network */
+	enum ed_type encryption;
+
+	/* Indicate the channel on which the Network can be found 0 - if
+	 * all channels */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS];
+
+	/* Indicates the RSSI threshold for the network to be considered */
+	u8 rssi_threshold;
+};
+
+struct scan_timer {
+	/* How much it should wait */
+	u32 value;
+
+	/* How many times it should repeat that wait value 0 - keep using
+	 * this timer until PNO is disabled */
+	u32 repeat;
+
+	/* e.g: 2 3 4 0 - it will wait 2s between consecutive scans for 3
+	 * times - after that it will wait 4s between consecutive scans
+	 * until disabled */
+};
+
+/* The network parameters to be sent to the PNO algorithm */
+struct scan_timers_type {
+	/* set to 0 if you wish for PNO to use its default telescopic timer */
+	u8 count;
+
+	/* A set value represents the amount of time that PNO will wait
+	 * between two consecutive scan procedures If the desired is for a
+	 * uniform timer that fires always at the exact same interval - one
+	 * single value is to be set If there is a desire for a more
+	 * complex - telescopic like timer multiple values can be set -
+	 * once PNO reaches the end of the array it will continue scanning
+	 * at intervals presented by the last value */
+	struct scan_timer values[WCN36XX_HAL_PNO_MAX_SCAN_TIMERS];
+};
+
+/* Preferred network list request */
+struct set_pref_netw_list_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Enable PNO */
+	u32 enable;
+
+	/* Immediate,  On Suspend,   On Resume */
+	enum pno_mode mode;
+
+	/* Number of networks sent for PNO */
+	u32 networks_count;
+
+	/* The networks that PNO needs to look for */
+	struct network_type networks[WCN36XX_HAL_PNO_MAX_SUPP_NETWORKS];
+
+	/* The scan timers required for PNO */
+	struct scan_timers_type scan_timers;
+
+	/* Probe template for 2.4GHz band */
+	u16 band_24g_probe_size;
+	u8 band_24g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+
+	/* Probe template for 5GHz band */
+	u16 band_5g_probe_size;
+	u8 band_5g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+};
+
+/* The network description for which PNO will have to look for */
+struct network_type_new {
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Authentication type for the network */
+	enum auth_type authentication;
+
+	/* Encryption type for the network */
+	enum ed_type encryption;
+
+	/* SSID broadcast type, normal, hidden or unknown */
+	enum ssid_bcast_type bcast_network_type;
+
+	/* Indicate the channel on which the Network can be found 0 - if
+	 * all channels */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS];
+
+	/* Indicates the RSSI threshold for the network to be considered */
+	u8 rssi_threshold;
+};
+
+/* Preferred network list request new */
+struct set_pref_netw_list_req_new {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Enable PNO */
+	u32 enable;
+
+	/* Immediate,  On Suspend,   On Resume */
+	enum pno_mode mode;
+
+	/* Number of networks sent for PNO */
+	u32 networks_count;
+
+	/* The networks that PNO needs to look for */
+	struct network_type_new networks[WCN36XX_HAL_PNO_MAX_SUPP_NETWORKS];
+
+	/* The scan timers required for PNO */
+	struct scan_timers_type scan_timers;
+
+	/* Probe template for 2.4GHz band */
+	u16 band_24g_probe_size;
+	u8 band_24g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+
+	/* Probe template for 5GHz band */
+	u16 band_5g_probe_size;
+	u8 band_5g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+};
+
+/* Preferred network list response */
+struct set_pref_netw_list_resp {
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request - just to indicate that PNO has
+	 * acknowledged the request and will start scanning */
+	u32 status;
+};
+
+/* Preferred network found indication */
+struct pref_netw_found_ind {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* Network that was found with the highest RSSI */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Indicates the RSSI */
+	u8 rssi;
+};
+
+/* RSSI Filter request */
+struct set_rssi_filter_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* RSSI Threshold */
+	u8 rssi_threshold;
+};
+
+/* Set RSSI filter resp */
+struct set_rssi_filter_resp {
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+};
+
+/* Update scan params - sent from host to PNO to be used during PNO
+ * scanningx */
+struct wcn36xx_hal_update_scan_params_req {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* Host setting for 11d */
+	u8 dot11d_enabled;
+
+	/* Lets PNO know that host has determined the regulatory domain */
+	u8 dot11d_resolved;
+
+	/* Channels on which PNO is allowed to scan */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS];
+
+	/* Minimum channel time */
+	u16 active_min_ch_time;
+
+	/* Maximum channel time */
+	u16 active_max_ch_time;
+
+	/* Minimum channel time */
+	u16 passive_min_ch_time;
+
+	/* Maximum channel time */
+	u16 passive_max_ch_time;
+
+	/* Cb State */
+	enum phy_chan_bond_state state;
+} __packed;
+
+/* Update scan params - sent from host to PNO to be used during PNO
+ * scanningx */
+struct update_scan_params_req_ex {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* Host setting for 11d */
+	u8 dot11d_enabled;
+
+	/* Lets PNO know that host has determined the regulatory domain */
+	u8 dot11d_resolved;
+
+	/* Channels on which PNO is allowed to scan */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
+
+	/* Minimum channel time */
+	u16 active_min_ch_time;
+
+	/* Maximum channel time */
+	u16 active_max_ch_time;
+
+	/* Minimum channel time */
+	u16 passive_min_ch_time;
+
+	/* Maximum channel time */
+	u16 passive_max_ch_time;
+
+	/* Cb State */
+	enum phy_chan_bond_state state;
+};
+
+/* Update scan params - sent from host to PNO to be used during PNO
+ * scanningx */
+struct wcn36xx_hal_update_scan_params_resp {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_set_tx_per_tracking_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* 0: disable, 1:enable */
+	u8 tx_per_tracking_enable;
+
+	/* Check period, unit is sec. */
+	u8 tx_per_tracking_period;
+
+	/* (Fail TX packet)/(Total TX packet) ratio, the unit is 10%. */
+	u8 tx_per_tracking_ratio;
+
+	/* A watermark of check number, once the tx packet exceed this
+	 * number, we do the check, default is 5 */
+	u32 tx_per_tracking_watermark;
+};
+
+struct wcn36xx_hal_set_tx_per_tracking_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+};
+
+struct tx_per_hit_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+};
+
+/* Packet Filtering Definitions Begin */
+#define    WCN36XX_HAL_PROTOCOL_DATA_LEN                  8
+#define    WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS        240
+#define    WCN36XX_HAL_MAX_NUM_FILTERS                   20
+#define    WCN36XX_HAL_MAX_CMP_PER_FILTER                10
+
+enum wcn36xx_hal_receive_packet_filter_type {
+	HAL_RCV_FILTER_TYPE_INVALID,
+	HAL_RCV_FILTER_TYPE_FILTER_PKT,
+	HAL_RCV_FILTER_TYPE_BUFFER_PKT,
+	HAL_RCV_FILTER_TYPE_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_rcv_pkt_flt_protocol_type {
+	HAL_FILTER_PROTO_TYPE_INVALID,
+	HAL_FILTER_PROTO_TYPE_MAC,
+	HAL_FILTER_PROTO_TYPE_ARP,
+	HAL_FILTER_PROTO_TYPE_IPV4,
+	HAL_FILTER_PROTO_TYPE_IPV6,
+	HAL_FILTER_PROTO_TYPE_UDP,
+	HAL_FILTER_PROTO_TYPE_MAX
+};
+
+enum wcn36xx_hal_rcv_pkt_flt_cmp_flag_type {
+	HAL_FILTER_CMP_TYPE_INVALID,
+	HAL_FILTER_CMP_TYPE_EQUAL,
+	HAL_FILTER_CMP_TYPE_MASK_EQUAL,
+	HAL_FILTER_CMP_TYPE_NOT_EQUAL,
+	HAL_FILTER_CMP_TYPE_MAX
+};
+
+struct wcn36xx_hal_rcv_pkt_filter_params {
+	u8 protocol_layer;
+	u8 cmp_flag;
+
+	/* Length of the data to compare */
+	u16 data_length;
+
+	/* from start of the respective frame header */
+	u8 data_offset;
+
+	/* Reserved field */
+	u8 reserved;
+
+	/* Data to compare */
+	u8 compare_data[WCN36XX_HAL_PROTOCOL_DATA_LEN];
+
+	/* Mask to be applied on the received packet data before compare */
+	u8 data_mask[WCN36XX_HAL_PROTOCOL_DATA_LEN];
+};
+
+struct wcn36xx_hal_sessionized_rcv_pkt_filter_cfg_type {
+	u8 id;
+	u8 type;
+	u8 params_count;
+	u32 coleasce_time;
+	u8 bss_index;
+	struct wcn36xx_hal_rcv_pkt_filter_params params[1];
+};
+
+struct wcn36xx_hal_set_rcv_pkt_filter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 id;
+	u8 type;
+	u8 params_count;
+	u32 coalesce_time;
+	struct wcn36xx_hal_rcv_pkt_filter_params params[1];
+};
+
+struct wcn36xx_hal_rcv_flt_mc_addr_list_type {
+	/* from start of the respective frame header */
+	u8 data_offset;
+
+	u32 mc_addr_count;
+	u8 mc_addr[ETH_ALEN][WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS];
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_set_pkt_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_match_cnt_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_match_cnt {
+	u8 id;
+	u32 match_cnt;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_match_cnt_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure */
+	u32 status;
+
+	u32 match_count;
+	struct wcn36xx_hal_rcv_flt_pkt_match_cnt
+		matches[WCN36XX_HAL_MAX_NUM_FILTERS];
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_clear_param {
+	/* only valid for response message */
+	u32 status;
+	u8 id;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_clear_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_rcv_flt_pkt_clear_param param;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_clear_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_rcv_flt_pkt_clear_param param;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_set_mc_list_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_rcv_flt_mc_addr_list_type mc_addr_list;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_set_mc_list_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	u32 status;
+	u8 bss_index;
+};
+
+/* Packet Filtering Definitions End */
+
+struct wcn36xx_hal_set_power_params_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*  Ignore DTIM */
+	u32 ignore_dtim;
+
+	/* DTIM Period */
+	u32 dtim_period;
+
+	/* Listen Interval */
+	u32 listen_interval;
+
+	/* Broadcast Multicast Filter  */
+	u32 bcast_mcast_filter;
+
+	/* Beacon Early Termination */
+	u32 enable_bet;
+
+	/* Beacon Early Termination Interval */
+	u32 bet_interval;
+} __packed;
+
+struct wcn36xx_hal_set_power_params_resp {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+} __packed;
+
+/* Capability bitmap exchange definitions and macros starts */
+
+enum place_holder_in_cap_bitmap {
+	MCC = 0,
+	P2P = 1,
+	DOT11AC = 2,
+	SLM_SESSIONIZATION = 3,
+	DOT11AC_OPMODE = 4,
+	SAP32STA = 5,
+	TDLS = 6,
+	P2P_GO_NOA_DECOUPLE_INIT_SCAN = 7,
+	WLANACTIVE_OFFLOAD = 8,
+	BEACON_OFFLOAD = 9,
+	SCAN_OFFLOAD = 10,
+	ROAM_OFFLOAD = 11,
+	BCN_MISS_OFFLOAD = 12,
+	STA_POWERSAVE = 13,
+	STA_ADVANCED_PWRSAVE = 14,
+	AP_UAPSD = 15,
+	AP_DFS = 16,
+	BLOCKACK = 17,
+	PHY_ERR = 18,
+	BCN_FILTER = 19,
+	RTT = 20,
+	RATECTRL = 21,
+	WOW = 22,
+	MAX_FEATURE_SUPPORTED = 128,
+};
+
+struct wcn36xx_hal_feat_caps_msg {
+
+	struct wcn36xx_hal_msg_header header;
+
+	u32 feat_caps[4];
+} __packed;
+
+/* status codes to help debug rekey failures */
+enum gtk_rekey_status {
+	WCN36XX_HAL_GTK_REKEY_STATUS_SUCCESS = 0,
+
+	/* rekey detected, but not handled */
+	WCN36XX_HAL_GTK_REKEY_STATUS_NOT_HANDLED = 1,
+
+	/* MIC check error on M1 */
+	WCN36XX_HAL_GTK_REKEY_STATUS_MIC_ERROR = 2,
+
+	/* decryption error on M1  */
+	WCN36XX_HAL_GTK_REKEY_STATUS_DECRYPT_ERROR = 3,
+
+	/* M1 replay detected */
+	WCN36XX_HAL_GTK_REKEY_STATUS_REPLAY_ERROR = 4,
+
+	/* missing GTK key descriptor in M1 */
+	WCN36XX_HAL_GTK_REKEY_STATUS_MISSING_KDE = 5,
+
+	/* missing iGTK key descriptor in M1 */
+	WCN36XX_HAL_GTK_REKEY_STATUS_MISSING_IGTK_KDE = 6,
+
+	/* key installation error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_INSTALL_ERROR = 7,
+
+	/* iGTK key installation error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_IGTK_INSTALL_ERROR = 8,
+
+	/* GTK rekey M2 response TX error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_RESP_TX_ERROR = 9,
+
+	/* non-specific general error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_GEN_ERROR = 255
+};
+
+/* wake reason types */
+enum wake_reason_type {
+	WCN36XX_HAL_WAKE_REASON_NONE = 0,
+
+	/* magic packet match */
+	WCN36XX_HAL_WAKE_REASON_MAGIC_PACKET = 1,
+
+	/* host defined pattern match */
+	WCN36XX_HAL_WAKE_REASON_PATTERN_MATCH = 2,
+
+	/* EAP-ID frame detected */
+	WCN36XX_HAL_WAKE_REASON_EAPID_PACKET = 3,
+
+	/* start of EAPOL 4-way handshake detected */
+	WCN36XX_HAL_WAKE_REASON_EAPOL4WAY_PACKET = 4,
+
+	/* network scan offload match */
+	WCN36XX_HAL_WAKE_REASON_NETSCAN_OFFL_MATCH = 5,
+
+	/* GTK rekey status wakeup (see status) */
+	WCN36XX_HAL_WAKE_REASON_GTK_REKEY_STATUS = 6,
+
+	/* BSS connection lost */
+	WCN36XX_HAL_WAKE_REASON_BSS_CONN_LOST = 7,
+};
+
+/*
+  Wake Packet which is saved at tWakeReasonParams.DataStart
+  This data is sent for any wake reasons that involve a packet-based wakeup :
+
+  WCN36XX_HAL_WAKE_REASON_TYPE_MAGIC_PACKET
+  WCN36XX_HAL_WAKE_REASON_TYPE_PATTERN_MATCH
+  WCN36XX_HAL_WAKE_REASON_TYPE_EAPID_PACKET
+  WCN36XX_HAL_WAKE_REASON_TYPE_EAPOL4WAY_PACKET
+  WCN36XX_HAL_WAKE_REASON_TYPE_GTK_REKEY_STATUS
+
+  The information is provided to the host for auditing and debug purposes
+
+*/
+
+/* Wake reason indication */
+struct wcn36xx_hal_wake_reason_ind {
+	struct wcn36xx_hal_msg_header header;
+
+	/* see tWakeReasonType */
+	u32 reason;
+
+	/* argument specific to the reason type */
+	u32 reason_arg;
+
+	/* length of optional data stored in this message, in case HAL
+	 * truncates the data (i.e. data packets) this length will be less
+	 * than the actual length */
+	u32 stored_data_len;
+
+	/* actual length of data */
+	u32 actual_data_len;
+
+	/* variable length start of data (length == storedDataLen) see
+	 * specific wake type */
+	u8 data_start[1];
+
+	u32 bss_index:8;
+	u32 reserved:24;
+};
+
+#define WCN36XX_HAL_GTK_KEK_BYTES 16
+#define WCN36XX_HAL_GTK_KCK_BYTES 16
+
+#define WCN36XX_HAL_GTK_OFFLOAD_FLAGS_DISABLE (1 << 0)
+
+#define GTK_SET_BSS_KEY_TAG  0x1234AA55
+
+struct wcn36xx_hal_gtk_offload_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* optional flags */
+	u32 flags;
+
+	/* Key confirmation key */
+	u8 kck[WCN36XX_HAL_GTK_KCK_BYTES];
+
+	/* key encryption key */
+	u8 kek[WCN36XX_HAL_GTK_KEK_BYTES];
+
+	/* replay counter */
+	u64 key_replay_counter;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_gtk_offload_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_gtk_offload_get_info_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_gtk_offload_get_info_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* last rekey status when the rekey was offloaded */
+	u32 last_rekey_status;
+
+	/* current replay counter value */
+	u64 key_replay_counter;
+
+	/* total rekey attempts */
+	u32 total_rekey_count;
+
+	/* successful GTK rekeys */
+	u32 gtk_rekey_count;
+
+	/* successful iGTK rekeys */
+	u32 igtk_rekey_count;
+
+	u8 bss_index;
+};
+
+struct dhcp_info {
+	/* Indicates the device mode which indicates about the DHCP activity */
+	u8 device_mode;
+
+	u8 addr[ETH_ALEN];
+};
+
+struct dhcp_ind_status {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+/*
+ *   Thermal Mitigation mode of operation.
+ *
+ *  WCN36XX_HAL_THERMAL_MITIGATION_MODE_0 - Based on AMPDU disabling aggregation
+ *
+ *  WCN36XX_HAL_THERMAL_MITIGATION_MODE_1 - Based on AMPDU disabling aggregation
+ *  and reducing transmit power
+ *
+ *  WCN36XX_HAL_THERMAL_MITIGATION_MODE_2 - Not supported */
+enum wcn36xx_hal_thermal_mitigation_mode_type {
+	HAL_THERMAL_MITIGATION_MODE_INVALID = -1,
+	HAL_THERMAL_MITIGATION_MODE_0,
+	HAL_THERMAL_MITIGATION_MODE_1,
+	HAL_THERMAL_MITIGATION_MODE_2,
+	HAL_THERMAL_MITIGATION_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE,
+};
+
+
+/*
+ *   Thermal Mitigation level.
+ * Note the levels are incremental i.e WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_2 =
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_0 +
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_1
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_0 - lowest level of thermal mitigation.
+ * This level indicates normal mode of operation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_1 - 1st level of thermal mitigation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_2 - 2nd level of thermal mitigation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_3 - 3rd level of thermal mitigation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_4 - 4th level of thermal mitigation
+ */
+enum wcn36xx_hal_thermal_mitigation_level_type {
+	HAL_THERMAL_MITIGATION_LEVEL_INVALID = -1,
+	HAL_THERMAL_MITIGATION_LEVEL_0,
+	HAL_THERMAL_MITIGATION_LEVEL_1,
+	HAL_THERMAL_MITIGATION_LEVEL_2,
+	HAL_THERMAL_MITIGATION_LEVEL_3,
+	HAL_THERMAL_MITIGATION_LEVEL_4,
+	HAL_THERMAL_MITIGATION_LEVEL_MAX = WCN36XX_HAL_MAX_ENUM_SIZE,
+};
+
+
+/* WCN36XX_HAL_SET_THERMAL_MITIGATION_REQ */
+struct set_thermal_mitigation_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Thermal Mitigation Operation Mode */
+	enum wcn36xx_hal_thermal_mitigation_mode_type mode;
+
+	/* Thermal Mitigation Level */
+	enum wcn36xx_hal_thermal_mitigation_level_type level;
+};
+
+struct set_thermal_mitigation_resp {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+};
+
+/* Per STA Class B Statistics. Class B statistics are STA TX/RX stats
+ * provided to FW from Host via periodic messages */
+struct stats_class_b_ind {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Duration over which this stats was collected */
+	u32 duration;
+
+	/* Per STA Stats */
+
+	/* TX stats */
+	u32 tx_bytes_pushed;
+	u32 tx_packets_pushed;
+
+	/* RX stats */
+	u32 rx_bytes_rcvd;
+	u32 rx_packets_rcvd;
+	u32 rx_time_total;
+};
+
+#endif /* _HAL_H_ */

drivers/net/wireless/ath/wcn36xx/main.c

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include "wcn36xx.h"
+
+unsigned int wcn36xx_dbg_mask;
+module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
+MODULE_PARM_DESC(debug_mask, "Debugging mask");
+
+#define CHAN2G(_freq, _idx) { \
+	.band = IEEE80211_BAND_2GHZ, \
+	.center_freq = (_freq), \
+	.hw_value = (_idx), \
+	.max_power = 25, \
+}
+
+#define CHAN5G(_freq, _idx) { \
+	.band = IEEE80211_BAND_5GHZ, \
+	.center_freq = (_freq), \
+	.hw_value = (_idx), \
+	.max_power = 25, \
+}
+
+/* The wcn firmware expects channel values to matching
+ * their mnemonic values. So use these for .hw_value. */
+static struct ieee80211_channel wcn_2ghz_channels[] = {
+	CHAN2G(2412, 1), /* Channel 1 */
+	CHAN2G(2417, 2), /* Channel 2 */
+	CHAN2G(2422, 3), /* Channel 3 */
+	CHAN2G(2427, 4), /* Channel 4 */
+	CHAN2G(2432, 5), /* Channel 5 */
+	CHAN2G(2437, 6), /* Channel 6 */
+	CHAN2G(2442, 7), /* Channel 7 */
+	CHAN2G(2447, 8), /* Channel 8 */
+	CHAN2G(2452, 9), /* Channel 9 */
+	CHAN2G(2457, 10), /* Channel 10 */
+	CHAN2G(2462, 11), /* Channel 11 */
+	CHAN2G(2467, 12), /* Channel 12 */
+	CHAN2G(2472, 13), /* Channel 13 */
+	CHAN2G(2484, 14)  /* Channel 14 */
+
+};
+
+static struct ieee80211_channel wcn_5ghz_channels[] = {
+	CHAN5G(5180, 36),
+	CHAN5G(5200, 40),
+	CHAN5G(5220, 44),
+	CHAN5G(5240, 48),
+	CHAN5G(5260, 52),
+	CHAN5G(5280, 56),
+	CHAN5G(5300, 60),
+	CHAN5G(5320, 64),
+	CHAN5G(5500, 100),
+	CHAN5G(5520, 104),
+	CHAN5G(5540, 108),
+	CHAN5G(5560, 112),
+	CHAN5G(5580, 116),
+	CHAN5G(5600, 120),
+	CHAN5G(5620, 124),
+	CHAN5G(5640, 128),
+	CHAN5G(5660, 132),
+	CHAN5G(5700, 140),
+	CHAN5G(5745, 149),
+	CHAN5G(5765, 153),
+	CHAN5G(5785, 157),
+	CHAN5G(5805, 161),
+	CHAN5G(5825, 165)
+};
+
+#define RATE(_bitrate, _hw_rate, _flags) { \
+	.bitrate        = (_bitrate),                   \
+	.flags          = (_flags),                     \
+	.hw_value       = (_hw_rate),                   \
+	.hw_value_short = (_hw_rate)  \
+}
+
+static struct ieee80211_rate wcn_2ghz_rates[] = {
+	RATE(10, HW_RATE_INDEX_1MBPS, 0),
+	RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATE(60, HW_RATE_INDEX_6MBPS, 0),
+	RATE(90, HW_RATE_INDEX_9MBPS, 0),
+	RATE(120, HW_RATE_INDEX_12MBPS, 0),
+	RATE(180, HW_RATE_INDEX_18MBPS, 0),
+	RATE(240, HW_RATE_INDEX_24MBPS, 0),
+	RATE(360, HW_RATE_INDEX_36MBPS, 0),
+	RATE(480, HW_RATE_INDEX_48MBPS, 0),
+	RATE(540, HW_RATE_INDEX_54MBPS, 0)
+};
+
+static struct ieee80211_rate wcn_5ghz_rates[] = {
+	RATE(60, HW_RATE_INDEX_6MBPS, 0),
+	RATE(90, HW_RATE_INDEX_9MBPS, 0),
+	RATE(120, HW_RATE_INDEX_12MBPS, 0),
+	RATE(180, HW_RATE_INDEX_18MBPS, 0),
+	RATE(240, HW_RATE_INDEX_24MBPS, 0),
+	RATE(360, HW_RATE_INDEX_36MBPS, 0),
+	RATE(480, HW_RATE_INDEX_48MBPS, 0),
+	RATE(540, HW_RATE_INDEX_54MBPS, 0)
+};
+
+static struct ieee80211_supported_band wcn_band_2ghz = {
+	.channels	= wcn_2ghz_channels,
+	.n_channels	= ARRAY_SIZE(wcn_2ghz_channels),
+	.bitrates	= wcn_2ghz_rates,
+	.n_bitrates	= ARRAY_SIZE(wcn_2ghz_rates),
+	.ht_cap		= {
+		.cap =	IEEE80211_HT_CAP_GRN_FLD |
+			IEEE80211_HT_CAP_SGI_20 |
+			IEEE80211_HT_CAP_DSSSCCK40 |
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT,
+		.ht_supported = true,
+		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
+		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
+		.mcs = {
+			.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
+			.rx_highest = cpu_to_le16(72),
+			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+		}
+	}
+};
+
+static struct ieee80211_supported_band wcn_band_5ghz = {
+	.channels	= wcn_5ghz_channels,
+	.n_channels	= ARRAY_SIZE(wcn_5ghz_channels),
+	.bitrates	= wcn_5ghz_rates,
+	.n_bitrates	= ARRAY_SIZE(wcn_5ghz_rates),
+	.ht_cap		= {
+		.cap =	IEEE80211_HT_CAP_GRN_FLD |
+			IEEE80211_HT_CAP_SGI_20 |
+			IEEE80211_HT_CAP_DSSSCCK40 |
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT |
+			IEEE80211_HT_CAP_SGI_40 |
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40,
+		.ht_supported = true,
+		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
+		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
+		.mcs = {
+			.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
+			.rx_highest = cpu_to_le16(72),
+			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+		}
+	}
+};
+
+#ifdef CONFIG_PM
+
+static const struct wiphy_wowlan_support wowlan_support = {
+	.flags = WIPHY_WOWLAN_ANY
+};
+
+#endif
+
+static inline u8 get_sta_index(struct ieee80211_vif *vif,
+			       struct wcn36xx_sta *sta_priv)
+{
+	return NL80211_IFTYPE_STATION == vif->type ?
+	       sta_priv->bss_sta_index :
+	       sta_priv->sta_index;
+}
+
+static int wcn36xx_start(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+	int ret;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
+
+	/* SMD initialization */
+	ret = wcn36xx_smd_open(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to open smd channel: %d\n", ret);
+		goto out_err;
+	}
+
+	/* Allocate memory pools for Mgmt BD headers and Data BD headers */
+	ret = wcn36xx_dxe_allocate_mem_pools(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
+		goto out_smd_close;
+	}
+
+	ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
+		goto out_free_dxe_pool;
+	}
+
+	wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
+	if (!wcn->hal_buf) {
+		wcn36xx_err("Failed to allocate smd buf\n");
+		ret = -ENOMEM;
+		goto out_free_dxe_ctl;
+	}
+
+	ret = wcn36xx_smd_load_nv(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to push NV to chip\n");
+		goto out_free_smd_buf;
+	}
+
+	ret = wcn36xx_smd_start(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to start chip\n");
+		goto out_free_smd_buf;
+	}
+
+	/* DMA channel initialization */
+	ret = wcn36xx_dxe_init(wcn);
+	if (ret) {
+		wcn36xx_err("DXE init failed\n");
+		goto out_smd_stop;
+	}
+
+	wcn36xx_debugfs_init(wcn);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		ret = wcn36xx_smd_feature_caps_exchange(wcn);
+		if (ret)
+			wcn36xx_warn("Exchange feature caps failed\n");
+	}
+	INIT_LIST_HEAD(&wcn->vif_list);
+	return 0;
+
+out_smd_stop:
+	wcn36xx_smd_stop(wcn);
+out_free_smd_buf:
+	kfree(wcn->hal_buf);
+out_free_dxe_pool:
+	wcn36xx_dxe_free_mem_pools(wcn);
+out_free_dxe_ctl:
+	wcn36xx_dxe_free_ctl_blks(wcn);
+out_smd_close:
+	wcn36xx_smd_close(wcn);
+out_err:
+	return ret;
+}
+
+static void wcn36xx_stop(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
+
+	wcn36xx_debugfs_exit(wcn);
+	wcn36xx_smd_stop(wcn);
+	wcn36xx_dxe_deinit(wcn);
+	wcn36xx_smd_close(wcn);
+
+	wcn36xx_dxe_free_mem_pools(wcn);
+	wcn36xx_dxe_free_ctl_blks(wcn);
+
+	kfree(wcn->hal_buf);
+}
+
+static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct ieee80211_vif *vif = NULL;
+	struct wcn36xx_vif *tmp;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		int ch = WCN36XX_HW_CHANNEL(wcn);
+		wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
+			    ch);
+		list_for_each_entry(tmp, &wcn->vif_list, list) {
+			vif = container_of((void *)tmp,
+					   struct ieee80211_vif,
+					   drv_priv);
+			wcn36xx_smd_switch_channel(wcn, vif, ch);
+		}
+	}
+
+	return 0;
+}
+
+#define WCN36XX_SUPPORTED_FILTERS (0)
+
+static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
+				     unsigned int changed,
+				     unsigned int *total, u64 multicast)
+{
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
+
+	*total &= WCN36XX_SUPPORTED_FILTERS;
+}
+
+static void wcn36xx_tx(struct ieee80211_hw *hw,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_sta *sta_priv = NULL;
+
+	if (control->sta)
+		sta_priv = (struct wcn36xx_sta *)control->sta->drv_priv;
+
+	if (wcn36xx_start_tx(wcn, sta_priv, skb))
+		ieee80211_free_txskb(wcn->hw, skb);
+}
+
+static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+			   struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta,
+			   struct ieee80211_key_conf *key_conf)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *sta_priv = vif_priv->sta;
+	int ret = 0;
+	u8 key[WLAN_MAX_KEY_LEN];
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
+		    cmd, key_conf->cipher, key_conf->keyidx,
+		    key_conf->keylen, key_conf->flags);
+	wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
+			 key_conf->key,
+			 key_conf->keylen);
+
+	switch (key_conf->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
+		break;
+	default:
+		wcn36xx_err("Unsupported key type 0x%x\n",
+			      key_conf->cipher);
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	switch (cmd) {
+	case SET_KEY:
+		if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
+			/*
+			 * Supplicant is sending key in the wrong order:
+			 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
+			 * but HW expects it to be in the order as described in
+			 * IEEE 802.11 spec (see chapter 11.7) like this:
+			 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
+			 */
+			memcpy(key, key_conf->key, 16);
+			memcpy(key + 16, key_conf->key + 24, 8);
+			memcpy(key + 24, key_conf->key + 16, 8);
+		} else {
+			memcpy(key, key_conf->key, key_conf->keylen);
+		}
+
+		if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
+			sta_priv->is_data_encrypted = true;
+			/* Reconfigure bss with encrypt_type */
+			if (NL80211_IFTYPE_STATION == vif->type)
+				wcn36xx_smd_config_bss(wcn,
+						       vif,
+						       sta,
+						       sta->addr,
+						       true);
+
+			wcn36xx_smd_set_stakey(wcn,
+				vif_priv->encrypt_type,
+				key_conf->keyidx,
+				key_conf->keylen,
+				key,
+				get_sta_index(vif, sta_priv));
+		} else {
+			wcn36xx_smd_set_bsskey(wcn,
+				vif_priv->encrypt_type,
+				key_conf->keyidx,
+				key_conf->keylen,
+				key);
+			if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
+			    (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
+				sta_priv->is_data_encrypted = true;
+				wcn36xx_smd_set_stakey(wcn,
+					vif_priv->encrypt_type,
+					key_conf->keyidx,
+					key_conf->keylen,
+					key,
+					get_sta_index(vif, sta_priv));
+			}
+		}
+		break;
+	case DISABLE_KEY:
+		if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
+			wcn36xx_smd_remove_bsskey(wcn,
+				vif_priv->encrypt_type,
+				key_conf->keyidx);
+		} else {
+			sta_priv->is_data_encrypted = false;
+			/* do not remove key if disassociated */
+			if (sta_priv->aid)
+				wcn36xx_smd_remove_stakey(wcn,
+					vif_priv->encrypt_type,
+					key_conf->keyidx,
+					get_sta_index(vif, sta_priv));
+		}
+		break;
+	default:
+		wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
+		ret = -EOPNOTSUPP;
+		goto out;
+		break;
+	}
+
+out:
+	return ret;
+}
+
+static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
+	wcn36xx_smd_start_scan(wcn);
+}
+
+static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_smd_end_scan(wcn);
+	wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
+}
+
+static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
+					 enum ieee80211_band band)
+{
+	int i, size;
+	u16 *rates_table;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+	u32 rates = sta->supp_rates[band];
+
+	memset(&sta_priv->supported_rates, 0,
+		sizeof(sta_priv->supported_rates));
+	sta_priv->supported_rates.op_rate_mode = STA_11n;
+
+	size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
+	rates_table = sta_priv->supported_rates.dsss_rates;
+	if (band == IEEE80211_BAND_2GHZ) {
+		for (i = 0; i < size; i++) {
+			if (rates & 0x01) {
+				rates_table[i] = wcn_2ghz_rates[i].hw_value;
+				rates = rates >> 1;
+			}
+		}
+	}
+
+	size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
+	rates_table = sta_priv->supported_rates.ofdm_rates;
+	for (i = 0; i < size; i++) {
+		if (rates & 0x01) {
+			rates_table[i] = wcn_5ghz_rates[i].hw_value;
+			rates = rates >> 1;
+		}
+	}
+
+	if (sta->ht_cap.ht_supported) {
+		BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
+			sizeof(sta_priv->supported_rates.supported_mcs_set));
+		memcpy(sta_priv->supported_rates.supported_mcs_set,
+		       sta->ht_cap.mcs.rx_mask,
+		       sizeof(sta->ht_cap.mcs.rx_mask));
+	}
+}
+void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
+{
+	u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
+		HW_RATE_INDEX_6MBPS,
+		HW_RATE_INDEX_9MBPS,
+		HW_RATE_INDEX_12MBPS,
+		HW_RATE_INDEX_18MBPS,
+		HW_RATE_INDEX_24MBPS,
+		HW_RATE_INDEX_36MBPS,
+		HW_RATE_INDEX_48MBPS,
+		HW_RATE_INDEX_54MBPS
+	};
+	u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
+		HW_RATE_INDEX_1MBPS,
+		HW_RATE_INDEX_2MBPS,
+		HW_RATE_INDEX_5_5MBPS,
+		HW_RATE_INDEX_11MBPS
+	};
+
+	rates->op_rate_mode = STA_11n;
+	memcpy(rates->dsss_rates, dsss_rates,
+		sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
+	memcpy(rates->ofdm_rates, ofdm_rates,
+		sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
+	rates->supported_mcs_set[0] = 0xFF;
+}
+static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_bss_conf *bss_conf,
+				     u32 changed)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct sk_buff *skb = NULL;
+	u16 tim_off, tim_len;
+	enum wcn36xx_hal_link_state link_state;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
+		    vif, changed);
+
+	if (changed & BSS_CHANGED_BEACON_INFO) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss changed dtim period %d\n",
+			    bss_conf->dtim_period);
+
+		vif_priv->dtim_period = bss_conf->dtim_period;
+	}
+
+	if (changed & BSS_CHANGED_PS) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss PS set %d\n",
+			    bss_conf->ps);
+		if (bss_conf->ps) {
+			wcn36xx_pmc_enter_bmps_state(wcn, vif);
+		} else {
+			wcn36xx_pmc_exit_bmps_state(wcn, vif);
+		}
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
+			    bss_conf->bssid);
+
+		if (!is_zero_ether_addr(bss_conf->bssid)) {
+			vif_priv->is_joining = true;
+			vif_priv->bss_index = 0xff;
+			wcn36xx_smd_join(wcn, bss_conf->bssid,
+					 vif->addr, WCN36XX_HW_CHANNEL(wcn));
+			wcn36xx_smd_config_bss(wcn, vif, NULL,
+					       bss_conf->bssid, false);
+		} else {
+			vif_priv->is_joining = false;
+			wcn36xx_smd_delete_bss(wcn, vif);
+		}
+	}
+
+	if (changed & BSS_CHANGED_SSID) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss changed ssid\n");
+		wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
+				 bss_conf->ssid, bss_conf->ssid_len);
+
+		vif_priv->ssid.length = bss_conf->ssid_len;
+		memcpy(&vif_priv->ssid.ssid,
+		       bss_conf->ssid,
+		       bss_conf->ssid_len);
+	}
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		vif_priv->is_joining = false;
+		if (bss_conf->assoc) {
+			struct ieee80211_sta *sta;
+			struct wcn36xx_sta *sta_priv;
+
+			wcn36xx_dbg(WCN36XX_DBG_MAC,
+				    "mac assoc bss %pM vif %pM AID=%d\n",
+				     bss_conf->bssid,
+				     vif->addr,
+				     bss_conf->aid);
+
+			rcu_read_lock();
+			sta = ieee80211_find_sta(vif, bss_conf->bssid);
+			if (!sta) {
+				wcn36xx_err("sta %pM is not found\n",
+					      bss_conf->bssid);
+				rcu_read_unlock();
+				goto out;
+			}
+			sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+			wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
+
+			wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
+				vif->addr,
+				WCN36XX_HAL_LINK_POSTASSOC_STATE);
+			wcn36xx_smd_config_bss(wcn, vif, sta,
+					       bss_conf->bssid,
+					       true);
+			sta_priv->aid = bss_conf->aid;
+			/*
+			 * config_sta must be called from  because this is the
+			 * place where AID is available.
+			 */
+			wcn36xx_smd_config_sta(wcn, vif, sta);
+			rcu_read_unlock();
+		} else {
+			wcn36xx_dbg(WCN36XX_DBG_MAC,
+				    "disassociated bss %pM vif %pM AID=%d\n",
+				    bss_conf->bssid,
+				    vif->addr,
+				    bss_conf->aid);
+			wcn36xx_smd_set_link_st(wcn,
+						bss_conf->bssid,
+						vif->addr,
+						WCN36XX_HAL_LINK_IDLE_STATE);
+		}
+	}
+
+	if (changed & BSS_CHANGED_AP_PROBE_RESP) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
+		skb = ieee80211_proberesp_get(hw, vif);
+		if (!skb) {
+			wcn36xx_err("failed to alloc probereq skb\n");
+			goto out;
+		}
+
+		wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
+		dev_kfree_skb(skb);
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss changed beacon enabled %d\n",
+			    bss_conf->enable_beacon);
+
+		if (bss_conf->enable_beacon) {
+			vif_priv->bss_index = 0xff;
+			wcn36xx_smd_config_bss(wcn, vif, NULL,
+					       vif->addr, false);
+			skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
+						       &tim_len);
+			if (!skb) {
+				wcn36xx_err("failed to alloc beacon skb\n");
+				goto out;
+			}
+			wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
+			dev_kfree_skb(skb);
+
+			if (vif->type == NL80211_IFTYPE_ADHOC ||
+			    vif->type == NL80211_IFTYPE_MESH_POINT)
+				link_state = WCN36XX_HAL_LINK_IBSS_STATE;
+			else
+				link_state = WCN36XX_HAL_LINK_AP_STATE;
+
+			wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
+						link_state);
+		} else {
+			wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
+						WCN36XX_HAL_LINK_IDLE_STATE);
+			wcn36xx_smd_delete_bss(wcn, vif);
+		}
+	}
+out:
+	return;
+}
+
+/* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
+static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct wcn36xx *wcn = hw->priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
+
+	wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
+	return 0;
+}
+
+static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
+
+	list_del(&vif_priv->list);
+	wcn36xx_smd_delete_sta_self(wcn, vif->addr);
+}
+
+static int wcn36xx_add_interface(struct ieee80211_hw *hw,
+				 struct ieee80211_vif *vif)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
+		    vif, vif->type);
+
+	if (!(NL80211_IFTYPE_STATION == vif->type ||
+	      NL80211_IFTYPE_AP == vif->type ||
+	      NL80211_IFTYPE_ADHOC == vif->type ||
+	      NL80211_IFTYPE_MESH_POINT == vif->type)) {
+		wcn36xx_warn("Unsupported interface type requested: %d\n",
+			     vif->type);
+		return -EOPNOTSUPP;
+	}
+
+	list_add(&vif_priv->list, &wcn->vif_list);
+	wcn36xx_smd_add_sta_self(wcn, vif);
+
+	return 0;
+}
+
+static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
+		    vif, sta->addr);
+
+	vif_priv->sta = sta_priv;
+	sta_priv->vif = vif_priv;
+	/*
+	 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
+	 * at this stage AID is not available yet.
+	 */
+	if (NL80211_IFTYPE_STATION != vif->type) {
+		wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
+		sta_priv->aid = sta->aid;
+		wcn36xx_smd_config_sta(wcn, vif, sta);
+	}
+	return 0;
+}
+
+static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
+		    vif, sta->addr, sta_priv->sta_index);
+
+	wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
+	vif_priv->sta = NULL;
+	sta_priv->vif = NULL;
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
+
+	flush_workqueue(wcn->hal_ind_wq);
+	wcn36xx_smd_set_power_params(wcn, true);
+	return 0;
+}
+
+static int wcn36xx_resume(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
+
+	flush_workqueue(wcn->hal_ind_wq);
+	wcn36xx_smd_set_power_params(wcn, false);
+	return 0;
+}
+
+#endif
+
+static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
+		    struct ieee80211_vif *vif,
+		    enum ieee80211_ampdu_mlme_action action,
+		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+		    u8 buf_size)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_sta *sta_priv = NULL;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
+		    action, tid);
+
+	sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+	switch (action) {
+	case IEEE80211_AMPDU_RX_START:
+		sta_priv->tid = tid;
+		wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
+			get_sta_index(vif, sta_priv));
+		wcn36xx_smd_add_ba(wcn);
+		wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
+		ieee80211_start_tx_ba_session(sta, tid, 0);
+		break;
+	case IEEE80211_AMPDU_RX_STOP:
+		wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
+		break;
+	case IEEE80211_AMPDU_TX_START:
+		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	case IEEE80211_AMPDU_TX_OPERATIONAL:
+		wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
+			get_sta_index(vif, sta_priv));
+		break;
+	case IEEE80211_AMPDU_TX_STOP_FLUSH:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+	case IEEE80211_AMPDU_TX_STOP_CONT:
+		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	default:
+		wcn36xx_err("Unknown AMPDU action\n");
+	}
+
+	return 0;
+}
+
+static const struct ieee80211_ops wcn36xx_ops = {
+	.start			= wcn36xx_start,
+	.stop			= wcn36xx_stop,
+	.add_interface		= wcn36xx_add_interface,
+	.remove_interface	= wcn36xx_remove_interface,
+#ifdef CONFIG_PM
+	.suspend		= wcn36xx_suspend,
+	.resume			= wcn36xx_resume,
+#endif
+	.config			= wcn36xx_config,
+	.configure_filter       = wcn36xx_configure_filter,
+	.tx			= wcn36xx_tx,
+	.set_key		= wcn36xx_set_key,
+	.sw_scan_start		= wcn36xx_sw_scan_start,
+	.sw_scan_complete	= wcn36xx_sw_scan_complete,
+	.bss_info_changed	= wcn36xx_bss_info_changed,
+	.set_rts_threshold	= wcn36xx_set_rts_threshold,
+	.sta_add		= wcn36xx_sta_add,
+	.sta_remove		= wcn36xx_sta_remove,
+	.ampdu_action		= wcn36xx_ampdu_action,
+};
+
+static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
+{
+	int ret = 0;
+
+	static const u32 cipher_suites[] = {
+		WLAN_CIPHER_SUITE_WEP40,
+		WLAN_CIPHER_SUITE_WEP104,
+		WLAN_CIPHER_SUITE_TKIP,
+		WLAN_CIPHER_SUITE_CCMP,
+	};
+
+	wcn->hw->flags = IEEE80211_HW_SIGNAL_DBM |
+		IEEE80211_HW_HAS_RATE_CONTROL |
+		IEEE80211_HW_SUPPORTS_PS |
+		IEEE80211_HW_CONNECTION_MONITOR |
+		IEEE80211_HW_AMPDU_AGGREGATION |
+		IEEE80211_HW_TIMING_BEACON_ONLY;
+
+	wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+		BIT(NL80211_IFTYPE_AP) |
+		BIT(NL80211_IFTYPE_ADHOC) |
+		BIT(NL80211_IFTYPE_MESH_POINT);
+
+	wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz;
+	wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz;
+
+	wcn->hw->wiphy->cipher_suites = cipher_suites;
+	wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+
+	wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
+
+#ifdef CONFIG_PM
+	wcn->hw->wiphy->wowlan = &wowlan_support;
+#endif
+
+	wcn->hw->max_listen_interval = 200;
+
+	wcn->hw->queues = 4;
+
+	SET_IEEE80211_DEV(wcn->hw, wcn->dev);
+
+	wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
+	wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
+
+	return ret;
+}
+
+static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
+					  struct platform_device *pdev)
+{
+	struct resource *res;
+	/* Set TX IRQ */
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   "wcnss_wlantx_irq");
+	if (!res) {
+		wcn36xx_err("failed to get tx_irq\n");
+		return -ENOENT;
+	}
+	wcn->tx_irq = res->start;
+
+	/* Set RX IRQ */
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   "wcnss_wlanrx_irq");
+	if (!res) {
+		wcn36xx_err("failed to get rx_irq\n");
+		return -ENOENT;
+	}
+	wcn->rx_irq = res->start;
+
+	/* Map the memory */
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+						 "wcnss_mmio");
+	if (!res) {
+		wcn36xx_err("failed to get mmio\n");
+		return -ENOENT;
+	}
+	wcn->mmio = ioremap(res->start, resource_size(res));
+	if (!wcn->mmio) {
+		wcn36xx_err("failed to map io memory\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static int wcn36xx_probe(struct platform_device *pdev)
+{
+	struct ieee80211_hw *hw;
+	struct wcn36xx *wcn;
+	int ret;
+	u8 addr[ETH_ALEN];
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
+
+	hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
+	if (!hw) {
+		wcn36xx_err("failed to alloc hw\n");
+		ret = -ENOMEM;
+		goto out_err;
+	}
+	platform_set_drvdata(pdev, hw);
+	wcn = hw->priv;
+	wcn->hw = hw;
+	wcn->dev = &pdev->dev;
+	wcn->ctrl_ops = pdev->dev.platform_data;
+
+	mutex_init(&wcn->hal_mutex);
+
+	if (!wcn->ctrl_ops->get_hw_mac(addr)) {
+		wcn36xx_info("mac address: %pM\n", addr);
+		SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
+	}
+
+	ret = wcn36xx_platform_get_resources(wcn, pdev);
+	if (ret)
+		goto out_wq;
+
+	wcn36xx_init_ieee80211(wcn);
+	ret = ieee80211_register_hw(wcn->hw);
+	if (ret)
+		goto out_unmap;
+
+	return 0;
+
+out_unmap:
+	iounmap(wcn->mmio);
+out_wq:
+	ieee80211_free_hw(hw);
+out_err:
+	return ret;
+}
+static int wcn36xx_remove(struct platform_device *pdev)
+{
+	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
+	struct wcn36xx *wcn = hw->priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
+
+	mutex_destroy(&wcn->hal_mutex);
+
+	ieee80211_unregister_hw(hw);
+	iounmap(wcn->mmio);
+	ieee80211_free_hw(hw);
+
+	return 0;
+}
+static const struct platform_device_id wcn36xx_platform_id_table[] = {
+	{
+		.name = "wcn36xx",
+		.driver_data = 0
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
+
+static struct platform_driver wcn36xx_driver = {
+	.probe      = wcn36xx_probe,
+	.remove     = wcn36xx_remove,
+	.driver         = {
+		.name   = "wcn36xx",
+		.owner  = THIS_MODULE,
+	},
+	.id_table    = wcn36xx_platform_id_table,
+};
+
+static int __init wcn36xx_init(void)
+{
+	platform_driver_register(&wcn36xx_driver);
+	return 0;
+}
+module_init(wcn36xx_init);
+
+static void __exit wcn36xx_exit(void)
+{
+	platform_driver_unregister(&wcn36xx_driver);
+}
+module_exit(wcn36xx_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Eugene Krasnikov [e-mail]");
+MODULE_FIRMWARE(WLAN_NV_FILE);

drivers/net/wireless/ath/wcn36xx/pmc.c

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "wcn36xx.h"
+
+int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
+				 struct ieee80211_vif *vif)
+{
+	int ret = 0;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	/* TODO: Make sure the TX chain clean */
+	ret = wcn36xx_smd_enter_bmps(wcn, vif);
+	if (!ret) {
+		wcn36xx_dbg(WCN36XX_DBG_PMC, "Entered BMPS\n");
+		vif_priv->pw_state = WCN36XX_BMPS;
+	} else {
+		/*
+		 * One of the reasons why HW will not enter BMPS is because
+		 * driver is trying to enter bmps before first beacon was
+		 * received just after auth complete
+		 */
+		wcn36xx_err("Can not enter BMPS!\n");
+	}
+	return ret;
+}
+
+int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn,
+				struct ieee80211_vif *vif)
+{
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+
+	if (WCN36XX_BMPS != vif_priv->pw_state) {
+		wcn36xx_err("Not in BMPS mode, no need to exit from BMPS mode!\n");
+		return -EINVAL;
+	}
+	wcn36xx_smd_exit_bmps(wcn, vif);
+	vif_priv->pw_state = WCN36XX_FULL_POWER;
+	return 0;
+}
+
+int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn,
+					  struct ieee80211_vif *vif)
+{
+	wcn36xx_dbg(WCN36XX_DBG_PMC, "%s\n", __func__);
+	return wcn36xx_smd_keep_alive_req(wcn, vif,
+					  WCN36XX_HAL_KEEP_ALIVE_NULL_PKT);
+}

drivers/net/wireless/ath/wcn36xx/pmc.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WCN36XX_PMC_H_
+#define _WCN36XX_PMC_H_
+
+struct wcn36xx;
+
+enum wcn36xx_power_state {
+	WCN36XX_FULL_POWER,
+	WCN36XX_BMPS
+};
+
+int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
+				 struct ieee80211_vif *vif);
+int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn,
+				struct ieee80211_vif *vif);
+int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn,
+					  struct ieee80211_vif *vif);
+#endif	/* _WCN36XX_PMC_H_ */

drivers/net/wireless/ath/wcn36xx/smd.c

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/etherdevice.h>
+#include <linux/firmware.h>
+#include <linux/bitops.h>
+#include "smd.h"
+
+static int put_cfg_tlv_u32(struct wcn36xx *wcn, size_t *len, u32 id, u32 value)
+{
+	struct wcn36xx_hal_cfg *entry;
+	u32 *val;
+
+	if (*len + sizeof(*entry) + sizeof(u32) >= WCN36XX_HAL_BUF_SIZE) {
+		wcn36xx_err("Not enough room for TLV entry\n");
+		return -ENOMEM;
+	}
+
+	entry = (struct wcn36xx_hal_cfg *) (wcn->hal_buf + *len);
+	entry->id = id;
+	entry->len = sizeof(u32);
+	entry->pad_bytes = 0;
+	entry->reserve = 0;
+
+	val = (u32 *) (entry + 1);
+	*val = value;
+
+	*len += sizeof(*entry) + sizeof(u32);
+
+	return 0;
+}
+
+static void wcn36xx_smd_set_bss_nw_type(struct wcn36xx *wcn,
+		struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_bss_params *bss_params)
+{
+	if (IEEE80211_BAND_5GHZ == WCN36XX_BAND(wcn))
+		bss_params->nw_type = WCN36XX_HAL_11A_NW_TYPE;
+	else if (sta && sta->ht_cap.ht_supported)
+		bss_params->nw_type = WCN36XX_HAL_11N_NW_TYPE;
+	else if (sta && (sta->supp_rates[IEEE80211_BAND_2GHZ] & 0x7f))
+		bss_params->nw_type = WCN36XX_HAL_11G_NW_TYPE;
+	else
+		bss_params->nw_type = WCN36XX_HAL_11B_NW_TYPE;
+}
+
+static inline u8 is_cap_supported(unsigned long caps, unsigned long flag)
+{
+	return caps & flag ? 1 : 0;
+}
+static void wcn36xx_smd_set_bss_ht_params(struct ieee80211_vif *vif,
+		struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_bss_params *bss_params)
+{
+	if (sta && sta->ht_cap.ht_supported) {
+		unsigned long caps = sta->ht_cap.cap;
+		bss_params->ht = sta->ht_cap.ht_supported;
+		bss_params->tx_channel_width_set = is_cap_supported(caps,
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+		bss_params->lsig_tx_op_protection_full_support =
+			is_cap_supported(caps,
+					 IEEE80211_HT_CAP_LSIG_TXOP_PROT);
+
+		bss_params->ht_oper_mode = vif->bss_conf.ht_operation_mode;
+		bss_params->lln_non_gf_coexist =
+			!!(vif->bss_conf.ht_operation_mode &
+			   IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+		/* IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT */
+		bss_params->dual_cts_protection = 0;
+		/* IEEE80211_HT_OP_MODE_PROTECTION_20MHZ */
+		bss_params->ht20_coexist = 0;
+	}
+}
+
+static void wcn36xx_smd_set_sta_ht_params(struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_sta_params *sta_params)
+{
+	if (sta->ht_cap.ht_supported) {
+		unsigned long caps = sta->ht_cap.cap;
+		sta_params->ht_capable = sta->ht_cap.ht_supported;
+		sta_params->tx_channel_width_set = is_cap_supported(caps,
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+		sta_params->lsig_txop_protection = is_cap_supported(caps,
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT);
+
+		sta_params->max_ampdu_size = sta->ht_cap.ampdu_factor;
+		sta_params->max_ampdu_density = sta->ht_cap.ampdu_density;
+		sta_params->max_amsdu_size = is_cap_supported(caps,
+			IEEE80211_HT_CAP_MAX_AMSDU);
+		sta_params->sgi_20Mhz = is_cap_supported(caps,
+			IEEE80211_HT_CAP_SGI_20);
+		sta_params->sgi_40mhz =	is_cap_supported(caps,
+			IEEE80211_HT_CAP_SGI_40);
+		sta_params->green_field_capable = is_cap_supported(caps,
+			IEEE80211_HT_CAP_GRN_FLD);
+		sta_params->delayed_ba_support = is_cap_supported(caps,
+			IEEE80211_HT_CAP_DELAY_BA);
+		sta_params->dsss_cck_mode_40mhz = is_cap_supported(caps,
+			IEEE80211_HT_CAP_DSSSCCK40);
+	}
+}
+
+static void wcn36xx_smd_set_sta_params(struct wcn36xx *wcn,
+		struct ieee80211_vif *vif,
+		struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_sta_params *sta_params)
+{
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *priv_sta = NULL;
+	if (vif->type == NL80211_IFTYPE_ADHOC ||
+	    vif->type == NL80211_IFTYPE_AP ||
+	    vif->type == NL80211_IFTYPE_MESH_POINT) {
+		sta_params->type = 1;
+		sta_params->sta_index = 0xFF;
+	} else {
+		sta_params->type = 0;
+		sta_params->sta_index = 1;
+	}
+
+	sta_params->listen_interval = WCN36XX_LISTEN_INTERVAL(wcn);
+
+	/*
+	 * In STA mode ieee80211_sta contains bssid and ieee80211_vif
+	 * contains our mac address. In  AP mode we are bssid so vif
+	 * contains bssid and ieee80211_sta contains mac.
+	 */
+	if (NL80211_IFTYPE_STATION == vif->type)
+		memcpy(&sta_params->mac, vif->addr, ETH_ALEN);
+	else
+		memcpy(&sta_params->bssid, vif->addr, ETH_ALEN);
+
+	sta_params->encrypt_type = priv_vif->encrypt_type;
+	sta_params->short_preamble_supported =
+		!(WCN36XX_FLAGS(wcn) &
+		  IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE);
+
+	sta_params->rifs_mode = 0;
+	sta_params->rmf = 0;
+	sta_params->action = 0;
+	sta_params->uapsd = 0;
+	sta_params->mimo_ps = WCN36XX_HAL_HT_MIMO_PS_STATIC;
+	sta_params->max_ampdu_duration = 0;
+	sta_params->bssid_index = priv_vif->bss_index;
+	sta_params->p2p = 0;
+
+	if (sta) {
+		priv_sta = (struct wcn36xx_sta *)sta->drv_priv;
+		if (NL80211_IFTYPE_STATION == vif->type)
+			memcpy(&sta_params->bssid, sta->addr, ETH_ALEN);
+		else
+			memcpy(&sta_params->mac, sta->addr, ETH_ALEN);
+		sta_params->wmm_enabled = sta->wme;
+		sta_params->max_sp_len = sta->max_sp;
+		sta_params->aid = priv_sta->aid;
+		wcn36xx_smd_set_sta_ht_params(sta, sta_params);
+		memcpy(&sta_params->supported_rates, &priv_sta->supported_rates,
+			sizeof(priv_sta->supported_rates));
+	} else {
+		wcn36xx_set_default_rates(&sta_params->supported_rates);
+	}
+}
+
+static int wcn36xx_smd_send_and_wait(struct wcn36xx *wcn, size_t len)
+{
+	int ret = 0;
+	wcn36xx_dbg_dump(WCN36XX_DBG_SMD_DUMP, "HAL >>> ", wcn->hal_buf, len);
+
+	init_completion(&wcn->hal_rsp_compl);
+	ret = wcn->ctrl_ops->tx(wcn->hal_buf, len);
+	if (ret) {
+		wcn36xx_err("HAL TX failed\n");
+		goto out;
+	}
+	if (wait_for_completion_timeout(&wcn->hal_rsp_compl,
+		msecs_to_jiffies(HAL_MSG_TIMEOUT)) <= 0) {
+		wcn36xx_err("Timeout while waiting SMD response\n");
+		ret = -ETIME;
+		goto out;
+	}
+out:
+	return ret;
+}
+
+#define INIT_HAL_MSG(msg_body, type) \
+	do {								\
+		memset(&msg_body, 0, sizeof(msg_body));			\
+		msg_body.header.msg_type = type;			\
+		msg_body.header.msg_version = WCN36XX_HAL_MSG_VERSION0; \
+		msg_body.header.len = sizeof(msg_body);			\
+	} while (0)							\
+
+#define PREPARE_HAL_BUF(send_buf, msg_body) \
+	do {							\
+		memset(send_buf, 0, msg_body.header.len);	\
+		memcpy(send_buf, &msg_body, sizeof(msg_body));	\
+	} while (0)						\
+
+static int wcn36xx_smd_rsp_status_check(void *buf, size_t len)
+{
+	struct wcn36xx_fw_msg_status_rsp *rsp;
+
+	if (len < sizeof(struct wcn36xx_hal_msg_header) +
+	    sizeof(struct wcn36xx_fw_msg_status_rsp))
+		return -EIO;
+
+	rsp = (struct wcn36xx_fw_msg_status_rsp *)
+		(buf + sizeof(struct wcn36xx_hal_msg_header));
+
+	if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->status)
+		return rsp->status;
+
+	return 0;
+}
+
+int wcn36xx_smd_load_nv(struct wcn36xx *wcn)
+{
+	const struct firmware *nv;
+	struct nv_data *nv_d;
+	struct wcn36xx_hal_nv_img_download_req_msg msg_body;
+	int fw_bytes_left;
+	int ret;
+	u16 fm_offset = 0;
+
+	ret = request_firmware(&nv, WLAN_NV_FILE, wcn->dev);
+	if (ret) {
+		wcn36xx_err("Failed to load nv file %s: %d\n",
+			      WLAN_NV_FILE, ret);
+		goto out_free_nv;
+	}
+
+	nv_d = (struct nv_data *)nv->data;
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DOWNLOAD_NV_REQ);
+
+	msg_body.header.len += WCN36XX_NV_FRAGMENT_SIZE;
+
+	msg_body.frag_number = 0;
+	/* hal_buf must be protected with  mutex */
+	mutex_lock(&wcn->hal_mutex);
+
+	do {
+		fw_bytes_left = nv->size - fm_offset - 4;
+		if (fw_bytes_left > WCN36XX_NV_FRAGMENT_SIZE) {
+			msg_body.last_fragment = 0;
+			msg_body.nv_img_buffer_size = WCN36XX_NV_FRAGMENT_SIZE;
+		} else {
+			msg_body.last_fragment = 1;
+			msg_body.nv_img_buffer_size = fw_bytes_left;
+
+			/* Do not forget update general message len */
+			msg_body.header.len = sizeof(msg_body) + fw_bytes_left;
+
+		}
+
+		/* Add load NV request message header */
+		memcpy(wcn->hal_buf, &msg_body,	sizeof(msg_body));
+
+		/* Add NV body itself */
+		memcpy(wcn->hal_buf + sizeof(msg_body),
+		       &nv_d->table + fm_offset,
+		       msg_body.nv_img_buffer_size);
+
+		ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+		if (ret)
+			goto out_unlock;
+		ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf,
+						   wcn->hal_rsp_len);
+		if (ret) {
+			wcn36xx_err("hal_load_nv response failed err=%d\n",
+				    ret);
+			goto out_unlock;
+		}
+		msg_body.frag_number++;
+		fm_offset += WCN36XX_NV_FRAGMENT_SIZE;
+
+	} while (msg_body.last_fragment != 1);
+
+out_unlock:
+	mutex_unlock(&wcn->hal_mutex);
+out_free_nv:
+	release_firmware(nv);
+
+	return ret;
+}
+
+static int wcn36xx_smd_start_rsp(struct wcn36xx *wcn, void *buf, size_t len)
+{
+	struct wcn36xx_hal_mac_start_rsp_msg *rsp;
+
+	if (len < sizeof(*rsp))
+		return -EIO;
+
+	rsp = (struct wcn36xx_hal_mac_start_rsp_msg *)buf;
+
+	if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->start_rsp_params.status)
+		return -EIO;
+
+	memcpy(wcn->crm_version, rsp->start_rsp_params.crm_version,
+	       WCN36XX_HAL_VERSION_LENGTH);
+	memcpy(wcn->wlan_version, rsp->start_rsp_params.wlan_version,
+	       WCN36XX_HAL_VERSION_LENGTH);
+
+	/* null terminate the strings, just in case */
+	wcn->crm_version[WCN36XX_HAL_VERSION_LENGTH] = '\0';
+	wcn->wlan_version[WCN36XX_HAL_VERSION_LENGTH] = '\0';
+
+	wcn->fw_revision = rsp->start_rsp_params.version.revision;
+	wcn->fw_version = rsp->start_rsp_params.version.version;
+	wcn->fw_minor = rsp->start_rsp_params.version.minor;
+	wcn->fw_major = rsp->start_rsp_params.version.major;
+
+	wcn36xx_info("firmware WLAN version '%s' and CRM version '%s'\n",
+		     wcn->wlan_version, wcn->crm_version);
+
+	wcn36xx_info("firmware API %u.%u.%u.%u, %u stations, %u bssids\n",
+		     wcn->fw_major, wcn->fw_minor,
+		     wcn->fw_version, wcn->fw_revision,
+		     rsp->start_rsp_params.stations,
+		     rsp->start_rsp_params.bssids);
+
+	return 0;
+}
+
+int wcn36xx_smd_start(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_mac_start_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_REQ);
+
+	msg_body.params.type = DRIVER_TYPE_PRODUCTION;
+	msg_body.params.len = 0;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal start type %d\n",
+		    msg_body.params.type);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_start failed\n");
+		goto out;
+	}
+
+	ret = wcn36xx_smd_start_rsp(wcn, wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_start response failed err=%d\n", ret);
+		goto out;
+	}
+
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_stop(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_mac_stop_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_STOP_REQ);
+
+	msg_body.stop_req_params.reason = HAL_STOP_TYPE_RF_KILL;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_stop failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_stop response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_init_scan(struct wcn36xx *wcn, enum wcn36xx_hal_sys_mode mode)
+{
+	struct wcn36xx_hal_init_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_INIT_SCAN_REQ);
+
+	msg_body.mode = mode;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal init scan mode %d\n", msg_body.mode);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_init_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_init_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_start_scan(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_start_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_SCAN_REQ);
+
+	msg_body.scan_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal start scan channel %d\n",
+		    msg_body.scan_channel);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_start_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_start_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_end_scan(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_end_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_END_SCAN_REQ);
+
+	msg_body.scan_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal end scan channel %d\n",
+		    msg_body.scan_channel);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_end_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_end_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_finish_scan(struct wcn36xx *wcn,
+			    enum wcn36xx_hal_sys_mode mode)
+{
+	struct wcn36xx_hal_finish_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_FINISH_SCAN_REQ);
+
+	msg_body.mode = mode;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal finish scan mode %d\n",
+		    msg_body.mode);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_finish_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_finish_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_switch_channel_rsp(void *buf, size_t len)
+{
+	struct wcn36xx_hal_switch_channel_rsp_msg *rsp;
+	int ret = 0;
+
+	ret = wcn36xx_smd_rsp_status_check(buf, len);
+	if (ret)
+		return ret;
+	rsp = (struct wcn36xx_hal_switch_channel_rsp_msg *)buf;
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "channel switched to: %d, status: %d\n",
+		    rsp->channel_number, rsp->status);
+	return ret;
+}
+
+int wcn36xx_smd_switch_channel(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif, int ch)
+{
+	struct wcn36xx_hal_switch_channel_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_CH_SWITCH_REQ);
+
+	msg_body.channel_number = (u8)ch;
+	msg_body.tx_mgmt_power = 0xbf;
+	msg_body.max_tx_power = 0xbf;
+	memcpy(msg_body.self_sta_mac_addr, vif->addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_switch_channel failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_switch_channel_rsp(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_switch_channel response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_update_scan_params_rsp(void *buf, size_t len)
+{
+	struct wcn36xx_hal_update_scan_params_resp *rsp;
+
+	rsp = (struct wcn36xx_hal_update_scan_params_resp *)buf;
+
+	/* Remove the PNO version bit */
+	rsp->status &= (~(WCN36XX_FW_MSG_PNO_VERSION_MASK));
+
+	if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->status) {
+		wcn36xx_warn("error response from update scan\n");
+		return rsp->status;
+	}
+
+	return 0;
+}
+
+int wcn36xx_smd_update_scan_params(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_update_scan_params_req msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_UPDATE_SCAN_PARAM_REQ);
+
+	msg_body.dot11d_enabled	= 0;
+	msg_body.dot11d_resolved = 0;
+	msg_body.channel_count = 26;
+	msg_body.active_min_ch_time = 60;
+	msg_body.active_max_ch_time = 120;
+	msg_body.passive_min_ch_time = 60;
+	msg_body.passive_max_ch_time = 110;
+	msg_body.state = 0;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal update scan params channel_count %d\n",
+		    msg_body.channel_count);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_update_scan_params failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_update_scan_params_rsp(wcn->hal_buf,
+						 wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_update_scan_params response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_add_sta_self_rsp(struct wcn36xx *wcn,
+					struct ieee80211_vif *vif,
+					void *buf,
+					size_t len)
+{
+	struct wcn36xx_hal_add_sta_self_rsp_msg *rsp;
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	rsp = (struct wcn36xx_hal_add_sta_self_rsp_msg *)buf;
+
+	if (rsp->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
+		wcn36xx_warn("hal add sta self failure: %d\n",
+			     rsp->status);
+		return rsp->status;
+	}
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal add sta self status %d self_sta_index %d dpu_index %d\n",
+		    rsp->status, rsp->self_sta_index, rsp->dpu_index);
+
+	priv_vif->self_sta_index = rsp->self_sta_index;
+	priv_vif->self_dpu_desc_index = rsp->dpu_index;
+
+	return 0;
+}
+
+int wcn36xx_smd_add_sta_self(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_add_sta_self_req msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_STA_SELF_REQ);
+
+	memcpy(&msg_body.self_addr, vif->addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal add sta self self_addr %pM status %d\n",
+		    msg_body.self_addr, msg_body.status);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_add_sta_self failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_add_sta_self_rsp(wcn,
+					   vif,
+					   wcn->hal_buf,
+					   wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_add_sta_self response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_delete_sta_self(struct wcn36xx *wcn, u8 *addr)
+{
+	struct wcn36xx_hal_del_sta_self_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DEL_STA_SELF_REQ);
+
+	memcpy(&msg_body.self_addr, addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_delete_sta_self failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_delete_sta_self response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_delete_sta(struct wcn36xx *wcn, u8 sta_index)
+{
+	struct wcn36xx_hal_delete_sta_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DELETE_STA_REQ);
+
+	msg_body.sta_index = sta_index;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal delete sta sta_index %d\n",
+		    msg_body.sta_index);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_delete_sta failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_delete_sta response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_join_rsp(void *buf, size_t len)
+{
+	struct wcn36xx_hal_join_rsp_msg *rsp;
+
+	if (wcn36xx_smd_rsp_status_check(buf, len))
+		return -EIO;
+
+	rsp = (struct wcn36xx_hal_join_rsp_msg *)buf;
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal rsp join status %d tx_mgmt_power %d\n",
+		    rsp->status, rsp->tx_mgmt_power);
+
+	return 0;
+}
+
+int wcn36xx_smd_join(struct wcn36xx *wcn, const u8 *bssid, u8 *vif, u8 ch)
+{
+	struct wcn36xx_hal_join_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_JOIN_REQ);
+
+	memcpy(&msg_body.bssid, bssid, ETH_ALEN);
+	memcpy(&msg_body.self_sta_mac_addr, vif, ETH_ALEN);
+	msg_body.channel = ch;
+
+	if (conf_is_ht40_minus(&wcn->hw->conf))
+		msg_body.secondary_channel_offset =
+			PHY_DOUBLE_CHANNEL_HIGH_PRIMARY;
+	else if (conf_is_ht40_plus(&wcn->hw->conf))
+		msg_body.secondary_channel_offset =
+			PHY_DOUBLE_CHANNEL_LOW_PRIMARY;
+	else
+		msg_body.secondary_channel_offset =
+			PHY_SINGLE_CHANNEL_CENTERED;
+
+	msg_body.link_state = WCN36XX_HAL_LINK_PREASSOC_STATE;
+
+	msg_body.max_tx_power = 0xbf;
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal join req bssid %pM self_sta_mac_addr %pM channel %d link_state %d\n",
+		    msg_body.bssid, msg_body.self_sta_mac_addr,
+		    msg_body.channel, msg_body.link_state);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_join failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_join_rsp(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_join response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_set_link_st(struct wcn36xx *wcn, const u8 *bssid,
+			    const u8 *sta_mac,
+			    enum wcn36xx_hal_link_state state)
+{
+	struct wcn36xx_hal_set_link_state_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_LINK_ST_REQ);
+
+	memcpy(&msg_body.bssid, bssid, ETH_ALEN);
+	memcpy(&msg_body.self_mac_addr, sta_mac, ETH_ALEN);
+	msg_body.state = state;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal set link state bssid %pM self_mac_addr %pM state %d\n",
+		    msg_body.bssid, msg_body.self_mac_addr, msg_body.state);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_link_st failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_set_link_st response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static void wcn36xx_smd_convert_sta_to_v1(struct wcn36xx *wcn,
+			const struct wcn36xx_hal_config_sta_params *orig,
+			struct wcn36xx_hal_config_sta_params_v1 *v1)
+{
+	/* convert orig to v1 format */
+	memcpy(&v1->bssid, orig->bssid, ETH_ALEN);
+	memcpy(&v1->mac, orig->mac, ETH_ALEN);
+	v1->aid = orig->aid;
+	v1->type = orig->type;
+	v1->listen_interval = orig->listen_interval;
+	v1->ht_capable = orig->ht_capable;
+
+	v1->max_ampdu_size = orig->max_ampdu_size;
+	v1->max_ampdu_density = orig->max_ampdu_density;
+	v1->sgi_40mhz = orig->sgi_40mhz;
+	v1->sgi_20Mhz = orig->sgi_20Mhz;
+
+	memcpy(&v1->supported_rates, &orig->supported_rates,
+	       sizeof(orig->supported_rates));
+	v1->sta_index = orig->sta_index;
+}
+
+static int wcn36xx_smd_config_sta_rsp(struct wcn36xx *wcn,
+				      struct ieee80211_sta *sta,
+				      void *buf,
+				      size_t len)
+{
+	struct wcn36xx_hal_config_sta_rsp_msg *rsp;
+	struct config_sta_rsp_params *params;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	rsp = (struct wcn36xx_hal_config_sta_rsp_msg *)buf;
+	params = &rsp->params;
+
+	if (params->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
+		wcn36xx_warn("hal config sta response failure: %d\n",
+			     params->status);
+		return -EIO;
+	}
+
+	sta_priv->sta_index = params->sta_index;
+	sta_priv->dpu_desc_index = params->dpu_index;
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config sta rsp status %d sta_index %d bssid_index %d p2p %d\n",
+		    params->status, params->sta_index, params->bssid_index,
+		    params->p2p);
+
+	return 0;
+}
+
+static int wcn36xx_smd_config_sta_v1(struct wcn36xx *wcn,
+		     const struct wcn36xx_hal_config_sta_req_msg *orig)
+{
+	struct wcn36xx_hal_config_sta_req_msg_v1 msg_body;
+	struct wcn36xx_hal_config_sta_params_v1 *sta = &msg_body.sta_params;
+
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_CONFIG_STA_REQ);
+
+	wcn36xx_smd_convert_sta_to_v1(wcn, &orig->sta_params,
+				      &msg_body.sta_params);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config sta v1 action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
+		    sta->action, sta->sta_index, sta->bssid_index,
+		    sta->bssid, sta->type, sta->mac, sta->aid);
+
+	return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+}
+
+int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta)
+{
+	struct wcn36xx_hal_config_sta_req_msg msg;
+	struct wcn36xx_hal_config_sta_params *sta_params;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_STA_REQ);
+
+	sta_params = &msg.sta_params;
+
+	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		ret = wcn36xx_smd_config_sta_v1(wcn, &msg);
+	} else {
+		PREPARE_HAL_BUF(wcn->hal_buf, msg);
+
+		wcn36xx_dbg(WCN36XX_DBG_HAL,
+			    "hal config sta action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
+			    sta_params->action, sta_params->sta_index,
+			    sta_params->bssid_index, sta_params->bssid,
+			    sta_params->type, sta_params->mac, sta_params->aid);
+
+		ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+	}
+	if (ret) {
+		wcn36xx_err("Sending hal_config_sta failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_config_sta_rsp(wcn,
+					 sta,
+					 wcn->hal_buf,
+					 wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_config_sta response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
+			const struct wcn36xx_hal_config_bss_req_msg *orig)
+{
+	struct wcn36xx_hal_config_bss_req_msg_v1 msg_body;
+	struct wcn36xx_hal_config_bss_params_v1 *bss = &msg_body.bss_params;
+	struct wcn36xx_hal_config_sta_params_v1 *sta = &bss->sta;
+
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_CONFIG_BSS_REQ);
+
+	/* convert orig to v1 */
+	memcpy(&msg_body.bss_params.bssid,
+	       &orig->bss_params.bssid, ETH_ALEN);
+	memcpy(&msg_body.bss_params.self_mac_addr,
+	       &orig->bss_params.self_mac_addr, ETH_ALEN);
+
+	msg_body.bss_params.bss_type = orig->bss_params.bss_type;
+	msg_body.bss_params.oper_mode = orig->bss_params.oper_mode;
+	msg_body.bss_params.nw_type = orig->bss_params.nw_type;
+
+	msg_body.bss_params.short_slot_time_supported =
+		orig->bss_params.short_slot_time_supported;
+	msg_body.bss_params.lla_coexist = orig->bss_params.lla_coexist;
+	msg_body.bss_params.llb_coexist = orig->bss_params.llb_coexist;
+	msg_body.bss_params.llg_coexist = orig->bss_params.llg_coexist;
+	msg_body.bss_params.ht20_coexist = orig->bss_params.ht20_coexist;
+	msg_body.bss_params.lln_non_gf_coexist =
+		orig->bss_params.lln_non_gf_coexist;
+
+	msg_body.bss_params.lsig_tx_op_protection_full_support =
+		orig->bss_params.lsig_tx_op_protection_full_support;
+	msg_body.bss_params.rifs_mode = orig->bss_params.rifs_mode;
+	msg_body.bss_params.beacon_interval = orig->bss_params.beacon_interval;
+	msg_body.bss_params.dtim_period = orig->bss_params.dtim_period;
+	msg_body.bss_params.tx_channel_width_set =
+		orig->bss_params.tx_channel_width_set;
+	msg_body.bss_params.oper_channel = orig->bss_params.oper_channel;
+	msg_body.bss_params.ext_channel = orig->bss_params.ext_channel;
+
+	msg_body.bss_params.reserved = orig->bss_params.reserved;
+
+	memcpy(&msg_body.bss_params.ssid,
+	       &orig->bss_params.ssid,
+	       sizeof(orig->bss_params.ssid));
+
+	msg_body.bss_params.action = orig->bss_params.action;
+	msg_body.bss_params.rateset = orig->bss_params.rateset;
+	msg_body.bss_params.ht = orig->bss_params.ht;
+	msg_body.bss_params.obss_prot_enabled =
+		orig->bss_params.obss_prot_enabled;
+	msg_body.bss_params.rmf = orig->bss_params.rmf;
+	msg_body.bss_params.ht_oper_mode = orig->bss_params.ht_oper_mode;
+	msg_body.bss_params.dual_cts_protection =
+		orig->bss_params.dual_cts_protection;
+
+	msg_body.bss_params.max_probe_resp_retry_limit =
+		orig->bss_params.max_probe_resp_retry_limit;
+	msg_body.bss_params.hidden_ssid = orig->bss_params.hidden_ssid;
+	msg_body.bss_params.proxy_probe_resp =
+		orig->bss_params.proxy_probe_resp;
+	msg_body.bss_params.edca_params_valid =
+		orig->bss_params.edca_params_valid;
+
+	memcpy(&msg_body.bss_params.acbe,
+	       &orig->bss_params.acbe,
+	       sizeof(orig->bss_params.acbe));
+	memcpy(&msg_body.bss_params.acbk,
+	       &orig->bss_params.acbk,
+	       sizeof(orig->bss_params.acbk));
+	memcpy(&msg_body.bss_params.acvi,
+	       &orig->bss_params.acvi,
+	       sizeof(orig->bss_params.acvi));
+	memcpy(&msg_body.bss_params.acvo,
+	       &orig->bss_params.acvo,
+	       sizeof(orig->bss_params.acvo));
+
+	msg_body.bss_params.ext_set_sta_key_param_valid =
+		orig->bss_params.ext_set_sta_key_param_valid;
+
+	memcpy(&msg_body.bss_params.ext_set_sta_key_param,
+	       &orig->bss_params.ext_set_sta_key_param,
+	       sizeof(orig->bss_params.acvo));
+
+	msg_body.bss_params.wcn36xx_hal_persona =
+		orig->bss_params.wcn36xx_hal_persona;
+	msg_body.bss_params.spectrum_mgt_enable =
+		orig->bss_params.spectrum_mgt_enable;
+	msg_body.bss_params.tx_mgmt_power = orig->bss_params.tx_mgmt_power;
+	msg_body.bss_params.max_tx_power = orig->bss_params.max_tx_power;
+
+	wcn36xx_smd_convert_sta_to_v1(wcn, &orig->bss_params.sta,
+				      &msg_body.bss_params.sta);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss v1 bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
+		    bss->bssid, bss->self_mac_addr, bss->bss_type,
+		    bss->oper_mode, bss->nw_type);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
+		    sta->bssid, sta->action, sta->sta_index,
+		    sta->bssid_index, sta->aid, sta->type, sta->mac);
+
+	return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+}
+
+
+static int wcn36xx_smd_config_bss_rsp(struct wcn36xx *wcn,
+				      struct ieee80211_vif *vif,
+				      void *buf,
+				      size_t len)
+{
+	struct wcn36xx_hal_config_bss_rsp_msg *rsp;
+	struct wcn36xx_hal_config_bss_rsp_params *params;
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	rsp = (struct wcn36xx_hal_config_bss_rsp_msg *)buf;
+	params = &rsp->bss_rsp_params;
+
+	if (params->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
+		wcn36xx_warn("hal config bss response failure: %d\n",
+			     params->status);
+		return -EIO;
+	}
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss rsp status %d bss_idx %d dpu_desc_index %d"
+		    " sta_idx %d self_idx %d bcast_idx %d mac %pM"
+		    " power %d ucast_dpu_signature %d\n",
+		    params->status, params->bss_index, params->dpu_desc_index,
+		    params->bss_sta_index, params->bss_self_sta_index,
+		    params->bss_bcast_sta_idx, params->mac,
+		    params->tx_mgmt_power, params->ucast_dpu_signature);
+
+	priv_vif->bss_index = params->bss_index;
+
+	if (priv_vif->sta) {
+		priv_vif->sta->bss_sta_index =  params->bss_sta_index;
+		priv_vif->sta->bss_dpu_desc_index = params->dpu_desc_index;
+	}
+
+	priv_vif->ucast_dpu_signature = params->ucast_dpu_signature;
+
+	return 0;
+}
+
+int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta, const u8 *bssid,
+			   bool update)
+{
+	struct wcn36xx_hal_config_bss_req_msg msg;
+	struct wcn36xx_hal_config_bss_params *bss;
+	struct wcn36xx_hal_config_sta_params *sta_params;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_BSS_REQ);
+
+	bss = &msg.bss_params;
+	sta_params = &bss->sta;
+
+	WARN_ON(is_zero_ether_addr(bssid));
+
+	memcpy(&bss->bssid, bssid, ETH_ALEN);
+
+	memcpy(bss->self_mac_addr, vif->addr, ETH_ALEN);
+
+	if (vif->type == NL80211_IFTYPE_STATION) {
+		bss->bss_type = WCN36XX_HAL_INFRASTRUCTURE_MODE;
+
+		/* STA */
+		bss->oper_mode = 1;
+		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_MODE;
+	} else if (vif->type == NL80211_IFTYPE_AP) {
+		bss->bss_type = WCN36XX_HAL_INFRA_AP_MODE;
+
+		/* AP */
+		bss->oper_mode = 0;
+		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_SAP_MODE;
+	} else if (vif->type == NL80211_IFTYPE_ADHOC ||
+		   vif->type == NL80211_IFTYPE_MESH_POINT) {
+		bss->bss_type = WCN36XX_HAL_IBSS_MODE;
+
+		/* STA */
+		bss->oper_mode = 1;
+	} else {
+		wcn36xx_warn("Unknown type for bss config: %d\n", vif->type);
+	}
+
+	if (vif->type == NL80211_IFTYPE_STATION)
+		wcn36xx_smd_set_bss_nw_type(wcn, sta, bss);
+	else
+		bss->nw_type = WCN36XX_HAL_11N_NW_TYPE;
+
+	bss->short_slot_time_supported = vif->bss_conf.use_short_slot;
+	bss->lla_coexist = 0;
+	bss->llb_coexist = 0;
+	bss->llg_coexist = 0;
+	bss->rifs_mode = 0;
+	bss->beacon_interval = vif->bss_conf.beacon_int;
+	bss->dtim_period = vif_priv->dtim_period;
+
+	wcn36xx_smd_set_bss_ht_params(vif, sta, bss);
+
+	bss->oper_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	if (conf_is_ht40_minus(&wcn->hw->conf))
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	else if (conf_is_ht40_plus(&wcn->hw->conf))
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+	else
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+
+	bss->reserved = 0;
+	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
+
+	/* wcn->ssid is only valid in AP and IBSS mode */
+	bss->ssid.length = vif_priv->ssid.length;
+	memcpy(bss->ssid.ssid, vif_priv->ssid.ssid, vif_priv->ssid.length);
+
+	bss->obss_prot_enabled = 0;
+	bss->rmf = 0;
+	bss->max_probe_resp_retry_limit = 0;
+	bss->hidden_ssid = vif->bss_conf.hidden_ssid;
+	bss->proxy_probe_resp = 0;
+	bss->edca_params_valid = 0;
+
+	/* FIXME: set acbe, acbk, acvi and acvo */
+
+	bss->ext_set_sta_key_param_valid = 0;
+
+	/* FIXME: set ext_set_sta_key_param */
+
+	bss->spectrum_mgt_enable = 0;
+	bss->tx_mgmt_power = 0;
+	bss->max_tx_power = WCN36XX_MAX_POWER(wcn);
+
+	bss->action = update;
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
+		    bss->bssid, bss->self_mac_addr, bss->bss_type,
+		    bss->oper_mode, bss->nw_type);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
+		    sta_params->bssid, sta_params->action,
+		    sta_params->sta_index, sta_params->bssid_index,
+		    sta_params->aid, sta_params->type,
+		    sta_params->mac);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		ret = wcn36xx_smd_config_bss_v1(wcn, &msg);
+	} else {
+		PREPARE_HAL_BUF(wcn->hal_buf, msg);
+
+		ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+	}
+	if (ret) {
+		wcn36xx_err("Sending hal_config_bss failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_config_bss_rsp(wcn,
+					 vif,
+					 wcn->hal_buf,
+					 wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_config_bss response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_delete_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_delete_bss_req_msg msg_body;
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DELETE_BSS_REQ);
+
+	msg_body.bss_index = priv_vif->bss_index;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal delete bss %d\n", msg_body.bss_index);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_delete_bss failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_delete_bss response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			    struct sk_buff *skb_beacon, u16 tim_off,
+			    u16 p2p_off)
+{
+	struct wcn36xx_hal_send_beacon_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SEND_BEACON_REQ);
+
+	/* TODO need to find out why this is needed? */
+	msg_body.beacon_length = skb_beacon->len + 6;
+
+	if (BEACON_TEMPLATE_SIZE > msg_body.beacon_length) {
+		memcpy(&msg_body.beacon, &skb_beacon->len, sizeof(u32));
+		memcpy(&(msg_body.beacon[4]), skb_beacon->data,
+		       skb_beacon->len);
+	} else {
+		wcn36xx_err("Beacon is to big: beacon size=%d\n",
+			      msg_body.beacon_length);
+		return -ENOMEM;
+	}
+	memcpy(msg_body.bssid, vif->addr, ETH_ALEN);
+
+	/* TODO need to find out why this is needed? */
+	msg_body.tim_ie_offset = tim_off+4;
+	msg_body.p2p_ie_offset = p2p_off;
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal send beacon beacon_length %d\n",
+		    msg_body.beacon_length);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_send_beacon failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_send_beacon response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
+				      struct ieee80211_vif *vif,
+				      struct sk_buff *skb)
+{
+	struct wcn36xx_hal_send_probe_resp_req_msg msg;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg, WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_REQ);
+
+	if (skb->len > BEACON_TEMPLATE_SIZE) {
+		wcn36xx_warn("probe response template is too big: %d\n",
+			     skb->len);
+		return -E2BIG;
+	}
+
+	msg.probe_resp_template_len = skb->len;
+	memcpy(&msg.probe_resp_template, skb->data, skb->len);
+
+	memcpy(msg.bssid, vif->addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal update probe rsp len %d bssid %pM\n",
+		    msg.probe_resp_template_len, msg.bssid);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_update_proberesp_tmpl failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_update_proberesp_tmpl response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_set_stakey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key,
+			   u8 sta_index)
+{
+	struct wcn36xx_hal_set_sta_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_STAKEY_REQ);
+
+	msg_body.set_sta_key_params.sta_index = sta_index;
+	msg_body.set_sta_key_params.enc_type = enc_type;
+
+	msg_body.set_sta_key_params.key[0].id = keyidx;
+	msg_body.set_sta_key_params.key[0].unicast = 1;
+	msg_body.set_sta_key_params.key[0].direction = WCN36XX_HAL_TX_RX;
+	msg_body.set_sta_key_params.key[0].pae_role = 0;
+	msg_body.set_sta_key_params.key[0].length = keylen;
+	memcpy(msg_body.set_sta_key_params.key[0].key, key, keylen);
+	msg_body.set_sta_key_params.single_tid_rc = 1;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_stakey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_set_stakey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_set_bsskey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key)
+{
+	struct wcn36xx_hal_set_bss_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_BSSKEY_REQ);
+	msg_body.bss_idx = 0;
+	msg_body.enc_type = enc_type;
+	msg_body.num_keys = 1;
+	msg_body.keys[0].id = keyidx;
+	msg_body.keys[0].unicast = 0;
+	msg_body.keys[0].direction = WCN36XX_HAL_RX_ONLY;
+	msg_body.keys[0].pae_role = 0;
+	msg_body.keys[0].length = keylen;
+	memcpy(msg_body.keys[0].key, key, keylen);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_bsskey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_set_bsskey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_remove_stakey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx,
+			      u8 sta_index)
+{
+	struct wcn36xx_hal_remove_sta_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_RMV_STAKEY_REQ);
+
+	msg_body.sta_idx = sta_index;
+	msg_body.enc_type = enc_type;
+	msg_body.key_id = keyidx;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_remove_stakey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_remove_stakey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_remove_bsskey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx)
+{
+	struct wcn36xx_hal_remove_bss_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_RMV_BSSKEY_REQ);
+	msg_body.bss_idx = 0;
+	msg_body.enc_type = enc_type;
+	msg_body.key_id = keyidx;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_remove_bsskey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_remove_bsskey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_enter_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_enter_bmps_req_msg msg_body;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ENTER_BMPS_REQ);
+
+	msg_body.bss_index = vif_priv->bss_index;
+	msg_body.tbtt = vif->bss_conf.sync_tsf;
+	msg_body.dtim_period = vif_priv->dtim_period;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_enter_bmps failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_enter_bmps response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_exit_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_enter_bmps_req_msg msg_body;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_EXIT_BMPS_REQ);
+
+	msg_body.bss_index = vif_priv->bss_index;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_exit_bmps failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_exit_bmps response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+int wcn36xx_smd_set_power_params(struct wcn36xx *wcn, bool ignore_dtim)
+{
+	struct wcn36xx_hal_set_power_params_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_POWER_PARAMS_REQ);
+
+	/*
+	 * When host is down ignore every second dtim
+	 */
+	if (ignore_dtim) {
+		msg_body.ignore_dtim = 1;
+		msg_body.dtim_period = 2;
+	}
+	msg_body.listen_interval = WCN36XX_LISTEN_INTERVAL(wcn);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_power_params failed\n");
+		goto out;
+	}
+
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+/* Notice: This function should be called after associated, or else it
+ * will be invalid
+ */
+int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif,
+			       int packet_type)
+{
+	struct wcn36xx_hal_keep_alive_req_msg msg_body;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_KEEP_ALIVE_REQ);
+
+	if (packet_type == WCN36XX_HAL_KEEP_ALIVE_NULL_PKT) {
+		msg_body.bss_index = vif_priv->bss_index;
+		msg_body.packet_type = WCN36XX_HAL_KEEP_ALIVE_NULL_PKT;
+		msg_body.time_period = WCN36XX_KEEP_ALIVE_TIME_PERIOD;
+	} else if (packet_type == WCN36XX_HAL_KEEP_ALIVE_UNSOLICIT_ARP_RSP) {
+		/* TODO: it also support ARP response type */
+	} else {
+		wcn36xx_warn("unknow keep alive packet type %d\n", packet_type);
+		return -EINVAL;
+	}
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_exit_bmps failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_exit_bmps response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_dump_cmd_req(struct wcn36xx *wcn, u32 arg1, u32 arg2,
+			     u32 arg3, u32 arg4, u32 arg5)
+{
+	struct wcn36xx_hal_dump_cmd_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DUMP_COMMAND_REQ);
+
+	msg_body.arg1 = arg1;
+	msg_body.arg2 = arg2;
+	msg_body.arg3 = arg3;
+	msg_body.arg4 = arg4;
+	msg_body.arg5 = arg5;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_dump_cmd failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_dump_cmd response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static inline void set_feat_caps(u32 *bitmap,
+				 enum place_holder_in_cap_bitmap cap)
+{
+	int arr_idx, bit_idx;
+
+	if (cap < 0 || cap > 127) {
+		wcn36xx_warn("error cap idx %d\n", cap);
+		return;
+	}
+
+	arr_idx = cap / 32;
+	bit_idx = cap % 32;
+	bitmap[arr_idx] |= (1 << bit_idx);
+}
+
+static inline int get_feat_caps(u32 *bitmap,
+				enum place_holder_in_cap_bitmap cap)
+{
+	int arr_idx, bit_idx;
+	int ret = 0;
+
+	if (cap < 0 || cap > 127) {
+		wcn36xx_warn("error cap idx %d\n", cap);
+		return -EINVAL;
+	}
+
+	arr_idx = cap / 32;
+	bit_idx = cap % 32;
+	ret = (bitmap[arr_idx] & (1 << bit_idx)) ? 1 : 0;
+	return ret;
+}
+
+static inline void clear_feat_caps(u32 *bitmap,
+				enum place_holder_in_cap_bitmap cap)
+{
+	int arr_idx, bit_idx;
+
+	if (cap < 0 || cap > 127) {
+		wcn36xx_warn("error cap idx %d\n", cap);
+		return;
+	}
+
+	arr_idx = cap / 32;
+	bit_idx = cap % 32;
+	bitmap[arr_idx] &= ~(1 << bit_idx);
+}
+
+int wcn36xx_smd_feature_caps_exchange(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_feat_caps_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_REQ);
+
+	set_feat_caps(msg_body.feat_caps, STA_POWERSAVE);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_feature_caps_exchange failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_feature_caps_exchange response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_add_ba_session(struct wcn36xx *wcn,
+		struct ieee80211_sta *sta,
+		u16 tid,
+		u16 *ssn,
+		u8 direction,
+		u8 sta_index)
+{
+	struct wcn36xx_hal_add_ba_session_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_BA_SESSION_REQ);
+
+	msg_body.sta_index = sta_index;
+	memcpy(&msg_body.mac_addr, sta->addr, ETH_ALEN);
+	msg_body.dialog_token = 0x10;
+	msg_body.tid = tid;
+
+	/* Immediate BA because Delayed BA is not supported */
+	msg_body.policy = 1;
+	msg_body.buffer_size = WCN36XX_AGGR_BUFFER_SIZE;
+	msg_body.timeout = 0;
+	if (ssn)
+		msg_body.ssn = *ssn;
+	msg_body.direction = direction;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_add_ba_session failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_add_ba_session response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_add_ba(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_add_ba_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_BA_REQ);
+
+	msg_body.session_id = 0;
+	msg_body.win_size = WCN36XX_AGGR_BUFFER_SIZE;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_add_ba failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_add_ba response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_del_ba(struct wcn36xx *wcn, u16 tid, u8 sta_index)
+{
+	struct wcn36xx_hal_del_ba_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DEL_BA_REQ);
+
+	msg_body.sta_index = sta_index;
+	msg_body.tid = tid;
+	msg_body.direction = 0;
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_del_ba failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_del_ba response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_trigger_ba(struct wcn36xx *wcn, u8 sta_index)
+{
+	struct wcn36xx_hal_trigger_ba_req_msg msg_body;
+	struct wcn36xx_hal_trigget_ba_req_candidate *candidate;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_TRIGGER_BA_REQ);
+
+	msg_body.session_id = 0;
+	msg_body.candidate_cnt = 1;
+	msg_body.header.len += sizeof(*candidate);
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	candidate = (struct wcn36xx_hal_trigget_ba_req_candidate *)
+		(wcn->hal_buf + sizeof(msg_body));
+	candidate->sta_index = sta_index;
+	candidate->tid_bitmap = 1;
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_trigger_ba failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_trigger_ba response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_tx_compl_ind(struct wcn36xx *wcn, void *buf, size_t len)
+{
+	struct wcn36xx_hal_tx_compl_ind_msg *rsp = buf;
+
+	if (len != sizeof(*rsp)) {
+		wcn36xx_warn("Bad TX complete indication\n");
+		return -EIO;
+	}
+
+	wcn36xx_dxe_tx_ack_ind(wcn, rsp->status);
+
+	return 0;
+}
+
+static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
+					 void *buf,
+					 size_t len)
+{
+	struct wcn36xx_hal_missed_beacon_ind_msg *rsp = buf;
+	struct ieee80211_vif *vif = NULL;
+	struct wcn36xx_vif *tmp;
+
+	/* Old FW does not have bss index */
+	if (wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		list_for_each_entry(tmp, &wcn->vif_list, list) {
+			wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
+				    tmp->bss_index);
+			vif = container_of((void *)tmp,
+						 struct ieee80211_vif,
+						 drv_priv);
+			ieee80211_connection_loss(vif);
+		}
+		return 0;
+	}
+
+	if (len != sizeof(*rsp)) {
+		wcn36xx_warn("Corrupted missed beacon indication\n");
+		return -EIO;
+	}
+
+	list_for_each_entry(tmp, &wcn->vif_list, list) {
+		if (tmp->bss_index == rsp->bss_index) {
+			wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
+				    rsp->bss_index);
+			vif = container_of((void *)tmp,
+						 struct ieee80211_vif,
+						 drv_priv);
+			ieee80211_connection_loss(vif);
+			return 0;
+		}
+	}
+
+	wcn36xx_warn("BSS index %d not found\n", rsp->bss_index);
+	return -ENOENT;
+}
+
+static int wcn36xx_smd_delete_sta_context_ind(struct wcn36xx *wcn,
+					      void *buf,
+					      size_t len)
+{
+	struct wcn36xx_hal_delete_sta_context_ind_msg *rsp = buf;
+	struct wcn36xx_vif *tmp;
+	struct ieee80211_sta *sta = NULL;
+
+	if (len != sizeof(*rsp)) {
+		wcn36xx_warn("Corrupted delete sta indication\n");
+		return -EIO;
+	}
+
+	list_for_each_entry(tmp, &wcn->vif_list, list) {
+		if (sta && (tmp->sta->sta_index == rsp->sta_id)) {
+			sta = container_of((void *)tmp->sta,
+						 struct ieee80211_sta,
+						 drv_priv);
+			wcn36xx_dbg(WCN36XX_DBG_HAL,
+				    "delete station indication %pM index %d\n",
+				    rsp->addr2,
+				    rsp->sta_id);
+			ieee80211_report_low_ack(sta, 0);
+			return 0;
+		}
+	}
+
+	wcn36xx_warn("STA with addr %pM and index %d not found\n",
+		     rsp->addr2,
+		     rsp->sta_id);
+	return -ENOENT;
+}
+
+int wcn36xx_smd_update_cfg(struct wcn36xx *wcn, u32 cfg_id, u32 value)
+{
+	struct wcn36xx_hal_update_cfg_req_msg msg_body, *body;
+	size_t len;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_UPDATE_CFG_REQ);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	body = (struct wcn36xx_hal_update_cfg_req_msg *) wcn->hal_buf;
+	len = msg_body.header.len;
+
+	put_cfg_tlv_u32(wcn, &len, cfg_id, value);
+	body->header.len = len;
+	body->len = len - sizeof(*body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, body->header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_update_cfg failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_update_cfg response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+static void wcn36xx_smd_rsp_process(struct wcn36xx *wcn, void *buf, size_t len)
+{
+	struct wcn36xx_hal_msg_header *msg_header = buf;
+	struct wcn36xx_hal_ind_msg *msg_ind;
+	wcn36xx_dbg_dump(WCN36XX_DBG_SMD_DUMP, "SMD <<< ", buf, len);
+
+	switch (msg_header->msg_type) {
+	case WCN36XX_HAL_START_RSP:
+	case WCN36XX_HAL_CONFIG_STA_RSP:
+	case WCN36XX_HAL_CONFIG_BSS_RSP:
+	case WCN36XX_HAL_ADD_STA_SELF_RSP:
+	case WCN36XX_HAL_STOP_RSP:
+	case WCN36XX_HAL_DEL_STA_SELF_RSP:
+	case WCN36XX_HAL_DELETE_STA_RSP:
+	case WCN36XX_HAL_INIT_SCAN_RSP:
+	case WCN36XX_HAL_START_SCAN_RSP:
+	case WCN36XX_HAL_END_SCAN_RSP:
+	case WCN36XX_HAL_FINISH_SCAN_RSP:
+	case WCN36XX_HAL_DOWNLOAD_NV_RSP:
+	case WCN36XX_HAL_DELETE_BSS_RSP:
+	case WCN36XX_HAL_SEND_BEACON_RSP:
+	case WCN36XX_HAL_SET_LINK_ST_RSP:
+	case WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_RSP:
+	case WCN36XX_HAL_SET_BSSKEY_RSP:
+	case WCN36XX_HAL_SET_STAKEY_RSP:
+	case WCN36XX_HAL_RMV_STAKEY_RSP:
+	case WCN36XX_HAL_RMV_BSSKEY_RSP:
+	case WCN36XX_HAL_ENTER_BMPS_RSP:
+	case WCN36XX_HAL_SET_POWER_PARAMS_RSP:
+	case WCN36XX_HAL_EXIT_BMPS_RSP:
+	case WCN36XX_HAL_KEEP_ALIVE_RSP:
+	case WCN36XX_HAL_DUMP_COMMAND_RSP:
+	case WCN36XX_HAL_ADD_BA_SESSION_RSP:
+	case WCN36XX_HAL_ADD_BA_RSP:
+	case WCN36XX_HAL_DEL_BA_RSP:
+	case WCN36XX_HAL_TRIGGER_BA_RSP:
+	case WCN36XX_HAL_UPDATE_CFG_RSP:
+	case WCN36XX_HAL_JOIN_RSP:
+	case WCN36XX_HAL_UPDATE_SCAN_PARAM_RSP:
+	case WCN36XX_HAL_CH_SWITCH_RSP:
+	case WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_RSP:
+		memcpy(wcn->hal_buf, buf, len);
+		wcn->hal_rsp_len = len;
+		complete(&wcn->hal_rsp_compl);
+		break;
+
+	case WCN36XX_HAL_OTA_TX_COMPL_IND:
+	case WCN36XX_HAL_MISSED_BEACON_IND:
+	case WCN36XX_HAL_DELETE_STA_CONTEXT_IND:
+		mutex_lock(&wcn->hal_ind_mutex);
+		msg_ind = kmalloc(sizeof(*msg_ind), GFP_KERNEL);
+		msg_ind->msg_len = len;
+		msg_ind->msg = kmalloc(len, GFP_KERNEL);
+		memcpy(msg_ind->msg, buf, len);
+		list_add_tail(&msg_ind->list, &wcn->hal_ind_queue);
+		queue_work(wcn->hal_ind_wq, &wcn->hal_ind_work);
+		wcn36xx_dbg(WCN36XX_DBG_HAL, "indication arrived\n");
+		mutex_unlock(&wcn->hal_ind_mutex);
+		break;
+	default:
+		wcn36xx_err("SMD_EVENT (%d) not supported\n",
+			      msg_header->msg_type);
+	}
+}
+static void wcn36xx_ind_smd_work(struct work_struct *work)
+{
+	struct wcn36xx *wcn =
+		container_of(work, struct wcn36xx, hal_ind_work);
+	struct wcn36xx_hal_msg_header *msg_header;
+	struct wcn36xx_hal_ind_msg *hal_ind_msg;
+
+	mutex_lock(&wcn->hal_ind_mutex);
+
+	hal_ind_msg = list_first_entry(&wcn->hal_ind_queue,
+				       struct wcn36xx_hal_ind_msg,
+				       list);
+
+	msg_header = (struct wcn36xx_hal_msg_header *)hal_ind_msg->msg;
+
+	switch (msg_header->msg_type) {
+	case WCN36XX_HAL_OTA_TX_COMPL_IND:
+		wcn36xx_smd_tx_compl_ind(wcn,
+					 hal_ind_msg->msg,
+					 hal_ind_msg->msg_len);
+		break;
+	case WCN36XX_HAL_MISSED_BEACON_IND:
+		wcn36xx_smd_missed_beacon_ind(wcn,
+					      hal_ind_msg->msg,
+					      hal_ind_msg->msg_len);
+		break;
+	case WCN36XX_HAL_DELETE_STA_CONTEXT_IND:
+		wcn36xx_smd_delete_sta_context_ind(wcn,
+						   hal_ind_msg->msg,
+						   hal_ind_msg->msg_len);
+		break;
+	default:
+		wcn36xx_err("SMD_EVENT (%d) not supported\n",
+			      msg_header->msg_type);
+	}
+	list_del(wcn->hal_ind_queue.next);
+	kfree(hal_ind_msg->msg);
+	kfree(hal_ind_msg);
+	mutex_unlock(&wcn->hal_ind_mutex);
+}
+int wcn36xx_smd_open(struct wcn36xx *wcn)
+{
+	int ret = 0;
+	wcn->hal_ind_wq = create_freezable_workqueue("wcn36xx_smd_ind");
+	if (!wcn->hal_ind_wq) {
+		wcn36xx_err("failed to allocate wq\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+	INIT_WORK(&wcn->hal_ind_work, wcn36xx_ind_smd_work);
+	INIT_LIST_HEAD(&wcn->hal_ind_queue);
+	mutex_init(&wcn->hal_ind_mutex);
+
+	ret = wcn->ctrl_ops->open(wcn, wcn36xx_smd_rsp_process);
+	if (ret) {
+		wcn36xx_err("failed to open control channel\n");
+		goto free_wq;
+	}
+
+	return ret;
+
+free_wq:
+	destroy_workqueue(wcn->hal_ind_wq);
+out:
+	return ret;
+}
+
+void wcn36xx_smd_close(struct wcn36xx *wcn)
+{
+	wcn->ctrl_ops->close();
+	destroy_workqueue(wcn->hal_ind_wq);
+	mutex_destroy(&wcn->hal_ind_mutex);
+}

drivers/net/wireless/ath/wcn36xx/smd.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _SMD_H_
+#define _SMD_H_
+
+#include "wcn36xx.h"
+
+/* Max shared size is 4k but we take less.*/
+#define WCN36XX_NV_FRAGMENT_SIZE			3072
+
+#define WCN36XX_HAL_BUF_SIZE				4096
+
+#define HAL_MSG_TIMEOUT 200
+#define WCN36XX_SMSM_WLAN_TX_ENABLE			0x00000400
+#define WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY		0x00000200
+/* The PNO version info be contained in the rsp msg */
+#define WCN36XX_FW_MSG_PNO_VERSION_MASK			0x8000
+
+enum wcn36xx_fw_msg_result {
+	WCN36XX_FW_MSG_RESULT_SUCCESS			= 0,
+	WCN36XX_FW_MSG_RESULT_SUCCESS_SYNC		= 1,
+
+	WCN36XX_FW_MSG_RESULT_MEM_FAIL			= 5,
+};
+
+/******************************/
+/* SMD requests and responses */
+/******************************/
+struct wcn36xx_fw_msg_status_rsp {
+	u32	status;
+} __packed;
+
+struct wcn36xx_hal_ind_msg {
+	struct list_head list;
+	u8 *msg;
+	size_t msg_len;
+};
+
+struct wcn36xx;
+
+int wcn36xx_smd_open(struct wcn36xx *wcn);
+void wcn36xx_smd_close(struct wcn36xx *wcn);
+
+int wcn36xx_smd_load_nv(struct wcn36xx *wcn);
+int wcn36xx_smd_start(struct wcn36xx *wcn);
+int wcn36xx_smd_stop(struct wcn36xx *wcn);
+int wcn36xx_smd_init_scan(struct wcn36xx *wcn, enum wcn36xx_hal_sys_mode mode);
+int wcn36xx_smd_start_scan(struct wcn36xx *wcn);
+int wcn36xx_smd_end_scan(struct wcn36xx *wcn);
+int wcn36xx_smd_finish_scan(struct wcn36xx *wcn,
+			    enum wcn36xx_hal_sys_mode mode);
+int wcn36xx_smd_update_scan_params(struct wcn36xx *wcn);
+int wcn36xx_smd_add_sta_self(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_delete_sta_self(struct wcn36xx *wcn, u8 *addr);
+int wcn36xx_smd_delete_sta(struct wcn36xx *wcn, u8 sta_index);
+int wcn36xx_smd_join(struct wcn36xx *wcn, const u8 *bssid, u8 *vif, u8 ch);
+int wcn36xx_smd_set_link_st(struct wcn36xx *wcn, const u8 *bssid,
+			    const u8 *sta_mac,
+			    enum wcn36xx_hal_link_state state);
+int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta, const u8 *bssid,
+			   bool update);
+int wcn36xx_smd_delete_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta);
+int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			    struct sk_buff *skb_beacon, u16 tim_off,
+			    u16 p2p_off);
+int wcn36xx_smd_switch_channel(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif, int ch);
+int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
+				      struct ieee80211_vif *vif,
+				      struct sk_buff *skb);
+int wcn36xx_smd_set_stakey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key,
+			   u8 sta_index);
+int wcn36xx_smd_set_bsskey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key);
+int wcn36xx_smd_remove_stakey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx,
+			      u8 sta_index);
+int wcn36xx_smd_remove_bsskey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx);
+int wcn36xx_smd_enter_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_exit_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_set_power_params(struct wcn36xx *wcn, bool ignore_dtim);
+int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif,
+			       int packet_type);
+int wcn36xx_smd_dump_cmd_req(struct wcn36xx *wcn, u32 arg1, u32 arg2,
+			     u32 arg3, u32 arg4, u32 arg5);
+int wcn36xx_smd_feature_caps_exchange(struct wcn36xx *wcn);
+
+int wcn36xx_smd_add_ba_session(struct wcn36xx *wcn,
+		struct ieee80211_sta *sta,
+		u16 tid,
+		u16 *ssn,
+		u8 direction,
+		u8 sta_index);
+int wcn36xx_smd_add_ba(struct wcn36xx *wcn);
+int wcn36xx_smd_del_ba(struct wcn36xx *wcn, u16 tid, u8 sta_index);
+int wcn36xx_smd_trigger_ba(struct wcn36xx *wcn, u8 sta_index);
+
+int wcn36xx_smd_update_cfg(struct wcn36xx *wcn, u32 cfg_id, u32 value);
+#endif	/* _SMD_H_ */

drivers/net/wireless/ath/wcn36xx/txrx.c

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "txrx.h"
+
+static inline int get_rssi0(struct wcn36xx_rx_bd *bd)
+{
+	return 100 - ((bd->phy_stat0 >> 24) & 0xff);
+}
+
+int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
+{
+	struct ieee80211_rx_status status;
+	struct ieee80211_hdr *hdr;
+	struct wcn36xx_rx_bd *bd;
+	u16 fc, sn;
+
+	/*
+	 * All fields must be 0, otherwise it can lead to
+	 * unexpected consequences.
+	 */
+	memset(&status, 0, sizeof(status));
+
+	bd = (struct wcn36xx_rx_bd *)skb->data;
+	buff_to_be((u32 *)bd, sizeof(*bd)/sizeof(u32));
+	wcn36xx_dbg_dump(WCN36XX_DBG_RX_DUMP,
+			 "BD   <<< ", (char *)bd,
+			 sizeof(struct wcn36xx_rx_bd));
+
+	skb_put(skb, bd->pdu.mpdu_header_off + bd->pdu.mpdu_len);
+	skb_pull(skb, bd->pdu.mpdu_header_off);
+
+	status.mactime = 10;
+	status.freq = WCN36XX_CENTER_FREQ(wcn);
+	status.band = WCN36XX_BAND(wcn);
+	status.signal = -get_rssi0(bd);
+	status.antenna = 1;
+	status.rate_idx = 1;
+	status.flag = 0;
+	status.rx_flags = 0;
+	status.flag |= RX_FLAG_IV_STRIPPED |
+		       RX_FLAG_MMIC_STRIPPED |
+		       RX_FLAG_DECRYPTED;
+
+	wcn36xx_dbg(WCN36XX_DBG_RX, "status.flags=%x status->vendor_radiotap_len=%x\n",
+		    status.flag,  status.vendor_radiotap_len);
+
+	memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
+
+	hdr = (struct ieee80211_hdr *) skb->data;
+	fc = __le16_to_cpu(hdr->frame_control);
+	sn = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl));
+
+	if (ieee80211_is_beacon(hdr->frame_control)) {
+		wcn36xx_dbg(WCN36XX_DBG_BEACON, "beacon skb %p len %d fc %04x sn %d\n",
+			    skb, skb->len, fc, sn);
+		wcn36xx_dbg_dump(WCN36XX_DBG_BEACON_DUMP, "SKB <<< ",
+				 (char *)skb->data, skb->len);
+	} else {
+		wcn36xx_dbg(WCN36XX_DBG_RX, "rx skb %p len %d fc %04x sn %d\n",
+			    skb, skb->len, fc, sn);
+		wcn36xx_dbg_dump(WCN36XX_DBG_RX_DUMP, "SKB <<< ",
+				 (char *)skb->data, skb->len);
+	}
+
+	ieee80211_rx_irqsafe(wcn->hw, skb);
+
+	return 0;
+}
+
+static void wcn36xx_set_tx_pdu(struct wcn36xx_tx_bd *bd,
+			       u32 mpdu_header_len,
+			       u32 len,
+			       u16 tid)
+{
+	bd->pdu.mpdu_header_len = mpdu_header_len;
+	bd->pdu.mpdu_header_off = sizeof(*bd);
+	bd->pdu.mpdu_data_off = bd->pdu.mpdu_header_len +
+		bd->pdu.mpdu_header_off;
+	bd->pdu.mpdu_len = len;
+	bd->pdu.tid = tid;
+}
+
+static inline struct wcn36xx_vif *get_vif_by_addr(struct wcn36xx *wcn,
+						  u8 *addr)
+{
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_vif *vif = NULL;
+	list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (memcmp(vif->addr, addr, ETH_ALEN) == 0)
+				return vif_priv;
+	}
+	wcn36xx_warn("vif %pM not found\n", addr);
+	return NULL;
+}
+static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
+				struct wcn36xx *wcn,
+				struct wcn36xx_vif **vif_priv,
+				struct wcn36xx_sta *sta_priv,
+				struct ieee80211_hdr *hdr,
+				bool bcast)
+{
+	struct ieee80211_vif *vif = NULL;
+	struct wcn36xx_vif *__vif_priv = NULL;
+	bd->bd_rate = WCN36XX_BD_RATE_DATA;
+
+	/*
+	 * For not unicast frames mac80211 will not set sta pointer so use
+	 * self_sta_index instead.
+	 */
+	if (sta_priv) {
+		__vif_priv = sta_priv->vif;
+		vif = container_of((void *)__vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+
+		if (vif->type == NL80211_IFTYPE_STATION) {
+			bd->sta_index = sta_priv->bss_sta_index;
+			bd->dpu_desc_idx = sta_priv->bss_dpu_desc_index;
+		} else if (vif->type == NL80211_IFTYPE_AP ||
+			   vif->type == NL80211_IFTYPE_ADHOC ||
+			   vif->type == NL80211_IFTYPE_MESH_POINT) {
+			bd->sta_index = sta_priv->sta_index;
+			bd->dpu_desc_idx = sta_priv->dpu_desc_index;
+		}
+	} else {
+		__vif_priv = get_vif_by_addr(wcn, hdr->addr2);
+		bd->sta_index = __vif_priv->self_sta_index;
+		bd->dpu_desc_idx = __vif_priv->self_dpu_desc_index;
+	}
+
+	bd->dpu_sign = __vif_priv->ucast_dpu_signature;
+
+	if (ieee80211_is_nullfunc(hdr->frame_control) ||
+	   (sta_priv && !sta_priv->is_data_encrypted))
+		bd->dpu_ne = 1;
+
+	if (bcast) {
+		bd->ub = 1;
+		bd->ack_policy = 1;
+	}
+	*vif_priv = __vif_priv;
+}
+
+static void wcn36xx_set_tx_mgmt(struct wcn36xx_tx_bd *bd,
+				struct wcn36xx *wcn,
+				struct wcn36xx_vif **vif_priv,
+				struct ieee80211_hdr *hdr,
+				bool bcast)
+{
+	struct wcn36xx_vif *__vif_priv =
+		get_vif_by_addr(wcn, hdr->addr2);
+	bd->sta_index = __vif_priv->self_sta_index;
+	bd->dpu_desc_idx = __vif_priv->self_dpu_desc_index;
+	bd->dpu_ne = 1;
+
+	/* default rate for unicast */
+	if (ieee80211_is_mgmt(hdr->frame_control))
+		bd->bd_rate = (WCN36XX_BAND(wcn) == IEEE80211_BAND_5GHZ) ?
+			WCN36XX_BD_RATE_CTRL :
+			WCN36XX_BD_RATE_MGMT;
+	else if (ieee80211_is_ctl(hdr->frame_control))
+		bd->bd_rate = WCN36XX_BD_RATE_CTRL;
+	else
+		wcn36xx_warn("frame control type unknown\n");
+
+	/*
+	 * In joining state trick hardware that probe is sent as
+	 * unicast even if address is broadcast.
+	 */
+	if (__vif_priv->is_joining &&
+	    ieee80211_is_probe_req(hdr->frame_control))
+		bcast = false;
+
+	if (bcast) {
+		/* broadcast */
+		bd->ub = 1;
+		/* No ack needed not unicast */
+		bd->ack_policy = 1;
+		bd->queue_id = WCN36XX_TX_B_WQ_ID;
+	} else
+		bd->queue_id = WCN36XX_TX_U_WQ_ID;
+	*vif_priv = __vif_priv;
+}
+
+int wcn36xx_start_tx(struct wcn36xx *wcn,
+		     struct wcn36xx_sta *sta_priv,
+		     struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	unsigned long flags;
+	bool is_low = ieee80211_is_data(hdr->frame_control);
+	bool bcast = is_broadcast_ether_addr(hdr->addr1) ||
+		is_multicast_ether_addr(hdr->addr1);
+	struct wcn36xx_tx_bd *bd = wcn36xx_dxe_get_next_bd(wcn, is_low);
+
+	if (!bd) {
+		/*
+		 * TX DXE are used in pairs. One for the BD and one for the
+		 * actual frame. The BD DXE's has a preallocated buffer while
+		 * the skb ones does not. If this isn't true something is really
+		 * wierd. TODO: Recover from this situation
+		 */
+
+		wcn36xx_err("bd address may not be NULL for BD DXE\n");
+		return -EINVAL;
+	}
+
+	memset(bd, 0, sizeof(*bd));
+
+	wcn36xx_dbg(WCN36XX_DBG_TX,
+		    "tx skb %p len %d fc %04x sn %d %s %s\n",
+		    skb, skb->len, __le16_to_cpu(hdr->frame_control),
+		    IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl)),
+		    is_low ? "low" : "high", bcast ? "bcast" : "ucast");
+
+	wcn36xx_dbg_dump(WCN36XX_DBG_TX_DUMP, "", skb->data, skb->len);
+
+	bd->dpu_rf = WCN36XX_BMU_WQ_TX;
+
+	bd->tx_comp = info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS;
+	if (bd->tx_comp) {
+		wcn36xx_dbg(WCN36XX_DBG_DXE, "TX_ACK status requested\n");
+		spin_lock_irqsave(&wcn->dxe_lock, flags);
+		if (wcn->tx_ack_skb) {
+			spin_unlock_irqrestore(&wcn->dxe_lock, flags);
+			wcn36xx_warn("tx_ack_skb already set\n");
+			return -EINVAL;
+		}
+
+		wcn->tx_ack_skb = skb;
+		spin_unlock_irqrestore(&wcn->dxe_lock, flags);
+
+		/* Only one at a time is supported by fw. Stop the TX queues
+		 * until the ack status gets back.
+		 *
+		 * TODO: Add watchdog in case FW does not answer
+		 */
+		ieee80211_stop_queues(wcn->hw);
+	}
+
+	/* Data frames served first*/
+	if (is_low) {
+		wcn36xx_set_tx_data(bd, wcn, &vif_priv, sta_priv, hdr, bcast);
+		wcn36xx_set_tx_pdu(bd,
+			   ieee80211_is_data_qos(hdr->frame_control) ?
+			   sizeof(struct ieee80211_qos_hdr) :
+			   sizeof(struct ieee80211_hdr_3addr),
+			   skb->len, sta_priv ? sta_priv->tid : 0);
+	} else {
+		/* MGMT and CTRL frames are handeld here*/
+		wcn36xx_set_tx_mgmt(bd, wcn, &vif_priv, hdr, bcast);
+		wcn36xx_set_tx_pdu(bd,
+			   ieee80211_is_data_qos(hdr->frame_control) ?
+			   sizeof(struct ieee80211_qos_hdr) :
+			   sizeof(struct ieee80211_hdr_3addr),
+			   skb->len, WCN36XX_TID);
+	}
+
+	buff_to_be((u32 *)bd, sizeof(*bd)/sizeof(u32));
+	bd->tx_bd_sign = 0xbdbdbdbd;
+
+	return wcn36xx_dxe_tx_frame(wcn, vif_priv, skb, is_low);
+}

drivers/net/wireless/ath/wcn36xx/txrx.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _TXRX_H_
+#define _TXRX_H_
+
+#include <linux/etherdevice.h>
+#include "wcn36xx.h"
+
+/* TODO describe all properties */
+#define WCN36XX_802_11_HEADER_LEN	24
+#define WCN36XX_BMU_WQ_TX		25
+#define WCN36XX_TID			7
+/* broadcast wq ID */
+#define WCN36XX_TX_B_WQ_ID		0xA
+#define WCN36XX_TX_U_WQ_ID		0x9
+/* bd_rate */
+#define WCN36XX_BD_RATE_DATA 0
+#define WCN36XX_BD_RATE_MGMT 2
+#define WCN36XX_BD_RATE_CTRL 3
+
+struct wcn36xx_pdu {
+	u32	dpu_fb:8;
+	u32	adu_fb:8;
+	u32	pdu_id:16;
+
+	/* 0x04*/
+	u32	tail_pdu_idx:16;
+	u32	head_pdu_idx:16;
+
+	/* 0x08*/
+	u32	pdu_count:7;
+	u32	mpdu_data_off:9;
+	u32	mpdu_header_off:8;
+	u32	mpdu_header_len:8;
+
+	/* 0x0c*/
+	u32	reserved4:8;
+	u32	tid:4;
+	u32	reserved3:4;
+	u32	mpdu_len:16;
+};
+
+struct wcn36xx_rx_bd {
+	u32	bdt:2;
+	u32	ft:1;
+	u32	dpu_ne:1;
+	u32	rx_key_id:3;
+	u32	ub:1;
+	u32	rmf:1;
+	u32	uma_bypass:1;
+	u32	csr11:1;
+	u32	reserved0:1;
+	u32	scan_learn:1;
+	u32	rx_ch:4;
+	u32	rtsf:1;
+	u32	bsf:1;
+	u32	a2hf:1;
+	u32	st_auf:1;
+	u32	dpu_sign:3;
+	u32	dpu_rf:8;
+
+	struct wcn36xx_pdu pdu;
+
+	/* 0x14*/
+	u32	addr3:8;
+	u32	addr2:8;
+	u32	addr1:8;
+	u32	dpu_desc_idx:8;
+
+	/* 0x18*/
+	u32	rxp_flags:23;
+	u32	rate_id:9;
+
+	u32	phy_stat0;
+	u32	phy_stat1;
+
+	/* 0x24 */
+	u32	rx_times;
+
+	u32	pmi_cmd[6];
+
+	/* 0x40 */
+	u32	reserved7:4;
+	u32	reorder_slot_id:6;
+	u32	reorder_fwd_id:6;
+	u32	reserved6:12;
+	u32	reorder_code:4;
+
+	/* 0x44 */
+	u32	exp_seq_num:12;
+	u32	cur_seq_num:12;
+	u32	fr_type_subtype:8;
+
+	/* 0x48 */
+	u32	msdu_size:16;
+	u32	sub_fr_id:4;
+	u32	proc_order:4;
+	u32	reserved9:4;
+	u32	aef:1;
+	u32	lsf:1;
+	u32	esf:1;
+	u32	asf:1;
+};
+
+struct wcn36xx_tx_bd {
+	u32	bdt:2;
+	u32	ft:1;
+	u32	dpu_ne:1;
+	u32	fw_tx_comp:1;
+	u32	tx_comp:1;
+	u32	reserved1:1;
+	u32	ub:1;
+	u32	rmf:1;
+	u32	reserved0:12;
+	u32	dpu_sign:3;
+	u32	dpu_rf:8;
+
+	struct wcn36xx_pdu pdu;
+
+	/* 0x14*/
+	u32	reserved5:7;
+	u32	queue_id:5;
+	u32	bd_rate:2;
+	u32	ack_policy:2;
+	u32	sta_index:8;
+	u32	dpu_desc_idx:8;
+
+	u32	tx_bd_sign;
+	u32	reserved6;
+	u32	dxe_start_time;
+	u32	dxe_end_time;
+
+	/*u32	tcp_udp_start_off:10;
+	u32	header_cks:16;
+	u32	reserved7:6;*/
+};
+
+struct wcn36xx_sta;
+struct wcn36xx;
+
+int  wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb);
+int wcn36xx_start_tx(struct wcn36xx *wcn,
+		     struct wcn36xx_sta *sta_priv,
+		     struct sk_buff *skb);
+
+#endif	/* _TXRX_H_ */

drivers/net/wireless/ath/wcn36xx/wcn36xx.h

···
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <[e-mail]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WCN36XX_H_
+#define _WCN36XX_H_
+
+#include <linux/completion.h>
+#include <linux/printk.h>
+#include <linux/spinlock.h>
+#include <net/mac80211.h>
+
+#include "hal.h"
+#include "smd.h"
+#include "txrx.h"
+#include "dxe.h"
+#include "pmc.h"
+#include "debug.h"
+
+#define WLAN_NV_FILE               "wlan/prima/WCNSS_qcom_wlan_nv.bin"
+#define WCN36XX_AGGR_BUFFER_SIZE 64
+
+extern unsigned int wcn36xx_dbg_mask;
+
+enum wcn36xx_debug_mask {
+	WCN36XX_DBG_DXE		= 0x00000001,
+	WCN36XX_DBG_DXE_DUMP	= 0x00000002,
+	WCN36XX_DBG_SMD		= 0x00000004,
+	WCN36XX_DBG_SMD_DUMP	= 0x00000008,
+	WCN36XX_DBG_RX		= 0x00000010,
+	WCN36XX_DBG_RX_DUMP	= 0x00000020,
+	WCN36XX_DBG_TX		= 0x00000040,
+	WCN36XX_DBG_TX_DUMP	= 0x00000080,
+	WCN36XX_DBG_HAL		= 0x00000100,
+	WCN36XX_DBG_HAL_DUMP	= 0x00000200,
+	WCN36XX_DBG_MAC		= 0x00000400,
+	WCN36XX_DBG_BEACON	= 0x00000800,
+	WCN36XX_DBG_BEACON_DUMP	= 0x00001000,
+	WCN36XX_DBG_PMC		= 0x00002000,
+	WCN36XX_DBG_PMC_DUMP	= 0x00004000,
+	WCN36XX_DBG_ANY		= 0xffffffff,
+};
+
+#define wcn36xx_err(fmt, arg...)				\
+	printk(KERN_ERR pr_fmt("ERROR " fmt), ##arg);
+
+#define wcn36xx_warn(fmt, arg...)				\
+	printk(KERN_WARNING pr_fmt("WARNING " fmt), ##arg)
+
+#define wcn36xx_info(fmt, arg...)		\
+	printk(KERN_INFO pr_fmt(fmt), ##arg)
+
+#define wcn36xx_dbg(mask, fmt, arg...) do {			\
+	if (wcn36xx_dbg_mask & mask)					\
+		printk(KERN_DEBUG pr_fmt(fmt), ##arg);	\
+} while (0)
+
+#define wcn36xx_dbg_dump(mask, prefix_str, buf, len) do {	\
+	if (wcn36xx_dbg_mask & mask)					\
+		print_hex_dump(KERN_DEBUG, pr_fmt(prefix_str),	\
+			       DUMP_PREFIX_OFFSET, 32, 1,	\
+			       buf, len, false);		\
+} while (0)
+
+#define WCN36XX_HW_CHANNEL(__wcn) (__wcn->hw->conf.chandef.chan->hw_value)
+#define WCN36XX_BAND(__wcn) (__wcn->hw->conf.chandef.chan->band)
+#define WCN36XX_CENTER_FREQ(__wcn) (__wcn->hw->conf.chandef.chan->center_freq)
+#define WCN36XX_LISTEN_INTERVAL(__wcn) (__wcn->hw->conf.listen_interval)
+#define WCN36XX_FLAGS(__wcn) (__wcn->hw->flags)
+#define WCN36XX_MAX_POWER(__wcn) (__wcn->hw->conf.chandef.chan->max_power)
+
+static inline void buff_to_be(u32 *buf, size_t len)
+{
+	int i;
+	for (i = 0; i < len; i++)
+		buf[i] = cpu_to_be32(buf[i]);
+}
+
+struct nv_data {
+	int	is_valid;
+	u8	table;
+};
+
+/* Interface for platform control path
+ *
+ * @open: hook must be called when wcn36xx wants to open control channel.
+ * @tx: sends a buffer.
+ */
+struct wcn36xx_platform_ctrl_ops {
+	int (*open)(void *drv_priv, void *rsp_cb);
+	void (*close)(void);
+	int (*tx)(char *buf, size_t len);
+	int (*get_hw_mac)(u8 *addr);
+	int (*smsm_change_state)(u32 clear_mask, u32 set_mask);
+};
+
+/**
+ * struct wcn36xx_vif - holds VIF related fields
+ *
+ * @bss_index: bss_index is initially set to 0xFF. bss_index is received from
+ * HW after first config_bss call and must be used in delete_bss and
+ * enter/exit_bmps.
+ */
+struct wcn36xx_vif {
+	struct list_head list;
+	struct wcn36xx_sta *sta;
+	u8 dtim_period;
+	enum ani_ed_type encrypt_type;
+	bool is_joining;
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Power management */
+	enum wcn36xx_power_state pw_state;
+
+	u8 bss_index;
+	u8 ucast_dpu_signature;
+	/* Returned from WCN36XX_HAL_ADD_STA_SELF_RSP */
+	u8 self_sta_index;
+	u8 self_dpu_desc_index;
+};
+
+/**
+ * struct wcn36xx_sta - holds STA related fields
+ *
+ * @tid: traffic ID that is used during AMPDU and in TX BD.
+ * @sta_index: STA index is returned from HW after config_sta call and is
+ * used in both SMD channel and TX BD.
+ * @dpu_desc_index: DPU descriptor index is returned from HW after config_sta
+ * call and is used in TX BD.
+ * @bss_sta_index: STA index is returned from HW after config_bss call and is
+ * used in both SMD channel and TX BD. See table bellow when it is used.
+ * @bss_dpu_desc_index: DPU descriptor index is returned from HW after
+ * config_bss call and is used in TX BD.
+ * ______________________________________________
+ * |		  |	STA	|	AP	|
+ * |______________|_____________|_______________|
+ * |    TX BD     |bss_sta_index|   sta_index   |
+ * |______________|_____________|_______________|
+ * |all SMD calls |bss_sta_index|   sta_index	|
+ * |______________|_____________|_______________|
+ * |smd_delete_sta|  sta_index  |   sta_index	|
+ * |______________|_____________|_______________|
+ */
+struct wcn36xx_sta {
+	struct wcn36xx_vif *vif;
+	u16 aid;
+	u16 tid;
+	u8 sta_index;
+	u8 dpu_desc_index;
+	u8 bss_sta_index;
+	u8 bss_dpu_desc_index;
+	bool is_data_encrypted;
+	/* Rates */
+	struct wcn36xx_hal_supported_rates supported_rates;
+};
+struct wcn36xx_dxe_ch;
+struct wcn36xx {
+	struct ieee80211_hw	*hw;
+	struct device		*dev;
+	struct list_head	vif_list;
+
+	u8			fw_revision;
+	u8			fw_version;
+	u8			fw_minor;
+	u8			fw_major;
+
+	/* extra byte for the NULL termination */
+	u8			crm_version[WCN36XX_HAL_VERSION_LENGTH + 1];
+	u8			wlan_version[WCN36XX_HAL_VERSION_LENGTH + 1];
+
+	/* IRQs */
+	int			tx_irq;
+	int			rx_irq;
+	void __iomem		*mmio;
+
+	struct wcn36xx_platform_ctrl_ops *ctrl_ops;
+	/*
+	 * smd_buf must be protected with smd_mutex to garantee
+	 * that all messages are sent one after another
+	 */
+	u8			*hal_buf;
+	size_t			hal_rsp_len;
+	struct mutex		hal_mutex;
+	struct completion	hal_rsp_compl;
+	struct workqueue_struct	*hal_ind_wq;
+	struct work_struct	hal_ind_work;
+	struct mutex		hal_ind_mutex;
+	struct list_head	hal_ind_queue;
+
+	/* DXE channels */
+	struct wcn36xx_dxe_ch	dxe_tx_l_ch;	/* TX low */
+	struct wcn36xx_dxe_ch	dxe_tx_h_ch;	/* TX high */
+	struct wcn36xx_dxe_ch	dxe_rx_l_ch;	/* RX low */
+	struct wcn36xx_dxe_ch	dxe_rx_h_ch;	/* RX high */
+
+	/* For synchronization of DXE resources from BH, IRQ and WQ contexts */
+	spinlock_t	dxe_lock;
+	bool                    queues_stopped;
+
+	/* Memory pools */
+	struct wcn36xx_dxe_mem_pool mgmt_mem_pool;
+	struct wcn36xx_dxe_mem_pool data_mem_pool;
+
+	struct sk_buff		*tx_ack_skb;
+
+#ifdef CONFIG_WCN36XX_DEBUGFS
+	/* Debug file system entry */
+	struct wcn36xx_dfs_entry    dfs;
+#endif /* CONFIG_WCN36XX_DEBUGFS */
+
+};
+
+static inline bool wcn36xx_is_fw_version(struct wcn36xx *wcn,
+					 u8 major,
+					 u8 minor,
+					 u8 version,
+					 u8 revision)
+{
+	return (wcn->fw_major == major &&
+		wcn->fw_minor == minor &&
+		wcn->fw_version == version &&
+		wcn->fw_revision == revision);
+}
+void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates);
+
+#endif	/* _WCN36XX_H_ */

drivers/net/wireless/brcm80211/brcmsmac/main.c

···
 		return true;
 	if ((device == BCM43224_D11N_ID) || (device == BCM43225_D11N2G_ID))
 		return true;
-	if (device == BCM4313_D11N2G_ID)
+	if (device == BCM4313_D11N2G_ID || device == BCM4313_CHIP_ID)
 		return true;
 	if ((device == BCM43236_D11N_ID) || (device == BCM43236_D11N2G_ID))
 		return true;

drivers/net/wireless/mwifiex/cmdevt.c

···
 	struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
 	unsigned long cmd_flags;
 	unsigned long scan_pending_q_flags;
-	uint16_t cancel_scan_cmd = false;
+	bool cancel_scan_cmd = false;
 
 	if ((adapter->curr_cmd) &&
 	    (adapter->curr_cmd->wait_q_enabled)) {

drivers/net/wireless/mwifiex/join.c

···
 	int ret = 0;
 	struct ieee_types_assoc_rsp *assoc_rsp;
 	struct mwifiex_bssdescriptor *bss_desc;
-	u8 enable_data = true;
+	bool enable_data = true;
 	u16 cap_info, status_code;
 
 	assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;

drivers/net/wireless/mwifiex/main.c

···
 	adapter->cmd_wait_q.status = 0;
 	adapter->scan_wait_q_woken = false;
 
-	adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE");
+	adapter->workqueue =
+		alloc_workqueue("MWIFIEX_WORK_QUEUE",
+				WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1);
 	if (!adapter->workqueue)
 		goto err_kmalloc;
 

drivers/net/wireless/mwifiex/sta_cmd.c

···
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
 	struct host_cmd_ds_802_11_hs_cfg_enh *hs_cfg = &cmd->params.opt_hs_cfg;
-	u16 hs_activate = false;
+	bool hs_activate = false;
 
 	if (!hscfg_param)
 		/* New Activate command */

drivers/net/wireless/mwifiex/wmm.c

···
 {
 	u8 *curr = (u8 *) &resp->params.get_wmm_status;
 	uint16_t resp_len = le16_to_cpu(resp->size), tlv_len;
-	int valid = true;
+	bool valid = true;
 
 	struct mwifiex_ie_types_data *tlv_hdr;
 	struct mwifiex_ie_types_wmm_queue_status *tlv_wmm_qstatus;

drivers/net/wireless/p54/p54spi.c

···
 	gpio_direction_input(p54spi_gpio_irq);
 
 	ret = request_irq(gpio_to_irq(p54spi_gpio_irq),
-			  p54spi_interrupt, IRQF_DISABLED, "p54spi",
+			  p54spi_interrupt, 0, "p54spi",
 			  priv->spi);
 	if (ret < 0) {
 		dev_err(&priv->spi->dev, "request_irq() failed");

drivers/net/wireless/rt2x00/Kconfig

···
 
 config RT2X00_LIB
 	tristate
+	select AVERAGE
 
 config RT2X00_LIB_FIRMWARE
 	boolean

drivers/net/wireless/rt2x00/rt2800.h

···
 /*
  * MAC_CSR0_3290: MAC_CSR0 for RT3290 to identity MAC version number.
  */
-#define MAC_CSR0_3290				0x0000
+#define MAC_CSR0_3290			0x0000
 
 /*
  * E2PROM_CSR: PCI EEPROM control register.
···
 /*
  * COEX_CFG_0
  */
-#define COEX_CFG0			0x0040
+#define COEX_CFG0		0x0040
 #define COEX_CFG_ANT		FIELD32(0xff000000)
 /*
  * COEX_CFG_1
  */
-#define COEX_CFG1			0x0044
+#define COEX_CFG1		0x0044
 
 /*
  * COEX_CFG_2
  */
-#define COEX_CFG2			0x0048
+#define COEX_CFG2		0x0048
 #define BT_COEX_CFG1		FIELD32(0xff000000)
 #define BT_COEX_CFG0		FIELD32(0x00ff0000)
 #define WL_COEX_CFG1		FIELD32(0x0000ff00)
···
 #define PLL_RESERVED_INPUT2	FIELD32(0x0000ff00)
 #define PLL_CONTROL		FIELD32(0x00070000)
 #define PLL_LPF_R1		FIELD32(0x00080000)
-#define PLL_LPF_C1_CTRL	FIELD32(0x00300000)
-#define PLL_LPF_C2_CTRL	FIELD32(0x00c00000)
+#define PLL_LPF_C1_CTRL		FIELD32(0x00300000)
+#define PLL_LPF_C2_CTRL		FIELD32(0x00c00000)
 #define PLL_CP_CURRENT_CTRL	FIELD32(0x03000000)
 #define PLL_PFD_DELAY_CTRL	FIELD32(0x0c000000)
 #define PLL_LOCK_CTRL		FIELD32(0x70000000)
···
  */
 #define RFCSR6_R1			FIELD8(0x03)
 #define RFCSR6_R2			FIELD8(0x40)
-#define RFCSR6_TXDIV		FIELD8(0x0c)
+#define RFCSR6_TXDIV			FIELD8(0x0c)
 /* bits for RF3053 */
 #define RFCSR6_VCO_IC			FIELD8(0xc0)
 
···
  * RFCSR 12:
  */
 #define RFCSR12_TX_POWER		FIELD8(0x1f)
-#define RFCSR12_DR0				FIELD8(0xe0)
+#define RFCSR12_DR0			FIELD8(0xe0)
 
 /*
  * RFCSR 13:
  */
 #define RFCSR13_TX_POWER		FIELD8(0x1f)
-#define RFCSR13_DR0				FIELD8(0xe0)
+#define RFCSR13_DR0			FIELD8(0xe0)
 
 /*
  * RFCSR 15:
···
 #define RFCSR17_TXMIXER_GAIN		FIELD8(0x07)
 #define RFCSR17_TX_LO1_EN		FIELD8(0x08)
 #define RFCSR17_R			FIELD8(0x20)
-#define RFCSR17_CODE                   FIELD8(0x7f)
+#define RFCSR17_CODE			FIELD8(0x7f)
 
 /* RFCSR 18 */
 #define RFCSR18_XO_TUNE_BYPASS		FIELD8(0x40)
···
  */
 #define EEPROM_NIC_CONF0_RXPATH		FIELD16(0x000f)
 #define EEPROM_NIC_CONF0_TXPATH		FIELD16(0x00f0)
-#define EEPROM_NIC_CONF0_RF_TYPE		FIELD16(0x0f00)
+#define EEPROM_NIC_CONF0_RF_TYPE	FIELD16(0x0f00)
 
 /*
  * EEPROM NIC Configuration 1
···
  * DAC_TEST: 0: disable, 1: enable
  */
 #define EEPROM_NIC_CONF1_HW_RADIO		FIELD16(0x0001)
-#define EEPROM_NIC_CONF1_EXTERNAL_TX_ALC		FIELD16(0x0002)
-#define EEPROM_NIC_CONF1_EXTERNAL_LNA_2G		FIELD16(0x0004)
-#define EEPROM_NIC_CONF1_EXTERNAL_LNA_5G		FIELD16(0x0008)
+#define EEPROM_NIC_CONF1_EXTERNAL_TX_ALC	FIELD16(0x0002)
+#define EEPROM_NIC_CONF1_EXTERNAL_LNA_2G	FIELD16(0x0004)
+#define EEPROM_NIC_CONF1_EXTERNAL_LNA_5G	FIELD16(0x0008)
 #define EEPROM_NIC_CONF1_CARDBUS_ACCEL		FIELD16(0x0010)
 #define EEPROM_NIC_CONF1_BW40M_SB_2G		FIELD16(0x0020)
 #define EEPROM_NIC_CONF1_BW40M_SB_5G		FIELD16(0x0040)
 #define EEPROM_NIC_CONF1_WPS_PBC		FIELD16(0x0080)
 #define EEPROM_NIC_CONF1_BW40M_2G		FIELD16(0x0100)
 #define EEPROM_NIC_CONF1_BW40M_5G		FIELD16(0x0200)
-#define EEPROM_NIC_CONF1_BROADBAND_EXT_LNA		FIELD16(0x400)
+#define EEPROM_NIC_CONF1_BROADBAND_EXT_LNA	FIELD16(0x400)
 #define EEPROM_NIC_CONF1_ANT_DIVERSITY		FIELD16(0x1800)
-#define EEPROM_NIC_CONF1_INTERNAL_TX_ALC		FIELD16(0x2000)
+#define EEPROM_NIC_CONF1_INTERNAL_TX_ALC	FIELD16(0x2000)
 #define EEPROM_NIC_CONF1_BT_COEXIST		FIELD16(0x4000)
 #define EEPROM_NIC_CONF1_DAC_TEST		FIELD16(0x8000)
 
···
  * TX_STREAM: 0: Reserved, 1: 1 Stream, 2: 2 Stream
  * CRYSTAL: 00: Reserved, 01: One crystal, 10: Two crystal, 11: Reserved
  */
-#define EEPROM_NIC_CONF2_RX_STREAM		FIELD16(0x000f)
-#define EEPROM_NIC_CONF2_TX_STREAM		FIELD16(0x00f0)
-#define EEPROM_NIC_CONF2_CRYSTAL		FIELD16(0x0600)
+#define EEPROM_NIC_CONF2_RX_STREAM	FIELD16(0x000f)
+#define EEPROM_NIC_CONF2_TX_STREAM	FIELD16(0x00f0)
+#define EEPROM_NIC_CONF2_CRYSTAL	FIELD16(0x0600)
 
 /*
  * EEPROM LNA
···
 #define MCU_CURRENT			0x36
 #define MCU_LED				0x50
 #define MCU_LED_STRENGTH		0x51
-#define MCU_LED_AG_CONF		0x52
+#define MCU_LED_AG_CONF			0x52
 #define MCU_LED_ACT_CONF		0x53
 #define MCU_LED_LED_POLARITY		0x54
 #define MCU_RADAR			0x60
···
 #define MCU_FREQ_OFFSET			0x74
 #define MCU_BBP_SIGNAL			0x80
 #define MCU_POWER_SAVE			0x83
-#define MCU_BAND_SELECT		0x91
+#define MCU_BAND_SELECT			0x91
 
 /*
  * MCU mailbox tokens

drivers/net/wireless/rt2x00/rt2800lib.c

···
 	[EEPROM_LNA]			= 0x0026,
 	[EEPROM_EXT_LNA2]		= 0x0027,
 	[EEPROM_RSSI_BG]		= 0x0028,
-	[EEPROM_TXPOWER_DELTA]		= 0x0028, /* Overlaps with RSSI_BG */
 	[EEPROM_RSSI_BG2]		= 0x0029,
-	[EEPROM_TXMIXER_GAIN_BG]	= 0x0029, /* Overlaps with RSSI_BG2 */
 	[EEPROM_RSSI_A]			= 0x002a,
 	[EEPROM_RSSI_A2]		= 0x002b,
-	[EEPROM_TXMIXER_GAIN_A]		= 0x002b, /* Overlaps with RSSI_A2 */
 	[EEPROM_TXPOWER_BG1]		= 0x0030,
 	[EEPROM_TXPOWER_BG2]		= 0x0037,
 	[EEPROM_EXT_TXPOWER_BG3]	= 0x003e,
···
 	rt2800_bbp_read(rt2x00dev, 3, &r3);
 
 	if (rt2x00_rt(rt2x00dev, RT3572) &&
-	    test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+	    rt2x00_has_cap_bt_coexist(rt2x00dev))
 		rt2800_config_3572bt_ant(rt2x00dev);
 
 	/*
···
 		break;
 	case 2:
 		if (rt2x00_rt(rt2x00dev, RT3572) &&
-		    test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+		    rt2x00_has_cap_bt_coexist(rt2x00dev))
 			rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 1);
 		else
 			rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 2);
···
 		break;
 	case 2:
 		if (rt2x00_rt(rt2x00dev, RT3572) &&
-		    test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+		    rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 			rt2x00_set_field8(&r3, BBP3_RX_ADC, 1);
 			rt2x00_set_field8(&r3, BBP3_RX_ANTENNA,
 				rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
···
 			  rt2x00dev->default_ant.tx_chain_num <= 2);
 	rt2800_rfcsr_write(rt2x00dev, 1, rfcsr);
 
-	rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
-	rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1);
-	rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
-	msleep(1);
-	rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0);
-	rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
-
 	rt2800_rfcsr_read(rt2x00dev, 23, &rfcsr);
 	rt2x00_set_field8(&rfcsr, RFCSR23_FREQ_OFFSET, rt2x00dev->freq_offset);
 	rt2800_rfcsr_write(rt2x00dev, 23, rfcsr);
···
 	rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 0);
 	rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD, 0);
 	rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD, 0);
-	if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 		if (rf->channel <= 14) {
 			rt2x00_set_field8(&rfcsr, RFCSR1_RX0_PD, 1);
 			rt2x00_set_field8(&rfcsr, RFCSR1_TX0_PD, 1);
···
 	if (rf->channel <= 14) {
 		int idx = rf->channel-1;
 
-		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 			if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F)) {
 				/* r55/r59 value array of channel 1~14 */
 				static const char r55_bt_rev[] = {0x83, 0x83,
···
 	if (rf->channel <= 14) {
 		if (!rt2x00_rt(rt2x00dev, RT5390) &&
 		    !rt2x00_rt(rt2x00dev, RT5392)) {
-			if (test_bit(CAPABILITY_EXTERNAL_LNA_BG,
-				     &rt2x00dev->cap_flags)) {
+			if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
 				rt2800_bbp_write(rt2x00dev, 82, 0x62);
 				rt2800_bbp_write(rt2x00dev, 75, 0x46);
 			} else {
···
 		if (rt2x00_rt(rt2x00dev, RT3593))
 			rt2800_bbp_write(rt2x00dev, 83, 0x9a);
 
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev))
 			rt2800_bbp_write(rt2x00dev, 75, 0x46);
 		else
 			rt2800_bbp_write(rt2x00dev, 75, 0x50);
···
 		/* Turn on primary PAs */
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN,
 				   rf->channel > 14);
-		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_bt_coexist(rt2x00dev))
 			rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, 1);
 		else
 			rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN,
···
 
 	rt2800_register_write(rt2x00dev, TX_PIN_CFG, tx_pin);
 
-	if (rt2x00_rt(rt2x00dev, RT3572))
+	if (rt2x00_rt(rt2x00dev, RT3572)) {
 		rt2800_rfcsr_write(rt2x00dev, 8, 0x80);
+
+		/* AGC init */
+		if (rf->channel <= 14)
+			reg = 0x1c + (2 * rt2x00dev->lna_gain);
+		else
+			reg = 0x22 + ((rt2x00dev->lna_gain * 5) / 3);
+
+		rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
+	}
 
 	if (rt2x00_rt(rt2x00dev, RT3593)) {
 		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
···
 {
 	int delta;
 
-	if (test_bit(CAPABILITY_POWER_LIMIT, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_power_limit(rt2x00dev))
 		return 0;
 
 	/*
···
 	if (rt2x00_rt(rt2x00dev, RT3593))
 		return min_t(u8, txpower, 0xc);
 
-	if (test_bit(CAPABILITY_POWER_LIMIT, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_power_limit(rt2x00dev)) {
 		/*
 		 * Check if eirp txpower exceed txpower_limit.
 		 * We use OFDM 6M as criterion and its eirp txpower
···
 		    rt2x00_rt(rt2x00dev, RT3290) ||
 		    rt2x00_rt(rt2x00dev, RT3390) ||
 		    rt2x00_rt(rt2x00dev, RT3572) ||
+		    rt2x00_rt(rt2x00dev, RT3593) ||
 		    rt2x00_rt(rt2x00dev, RT5390) ||
 		    rt2x00_rt(rt2x00dev, RT5392) ||
 		    rt2x00_rt(rt2x00dev, RT5592))
···
 		else
 			vgc = 0x2e + rt2x00dev->lna_gain;
 	} else { /* 5GHZ band */
-		if (rt2x00_rt(rt2x00dev, RT3572))
-			vgc = 0x22 + (rt2x00dev->lna_gain * 5) / 3;
+		if (rt2x00_rt(rt2x00dev, RT3593))
+			vgc = 0x20 + (rt2x00dev->lna_gain * 5) / 3;
 		else if (rt2x00_rt(rt2x00dev, RT5592))
 			vgc = 0x24 + (2 * rt2x00dev->lna_gain);
 		else {
···
 				  struct link_qual *qual, u8 vgc_level)
 {
 	if (qual->vgc_level != vgc_level) {
-		if (rt2x00_rt(rt2x00dev, RT5592)) {
+		if (rt2x00_rt(rt2x00dev, RT3572) ||
+		    rt2x00_rt(rt2x00dev, RT3593)) {
+			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66,
+						       vgc_level);
+		} else if (rt2x00_rt(rt2x00dev, RT5592)) {
 			rt2800_bbp_write(rt2x00dev, 83, qual->rssi > -65 ? 0x4a : 0x7a);
 			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, vgc_level);
-		} else
+		} else {
 			rt2800_bbp_write(rt2x00dev, 66, vgc_level);
+		}
+
 		qual->vgc_level = vgc_level;
 		qual->vgc_level_reg = vgc_level;
 	}
···
 
 	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860C))
 		return;
-	/*
-	 * When RSSI is better then -80 increase VGC level with 0x10, except
-	 * for rt5592 chip.
+
+	/* When RSSI is better than a certain threshold, increase VGC
+	 * with a chip specific value in order to improve the balance
+	 * between sensibility and noise isolation.
 	 */
 
 	vgc = rt2800_get_default_vgc(rt2x00dev);
 
-	if (rt2x00_rt(rt2x00dev, RT5592) && qual->rssi > -65)
-		vgc += 0x20;
-	else if (qual->rssi > -80)
-		vgc += 0x10;
+	switch (rt2x00dev->chip.rt) {
+	case RT3572:
+	case RT3593:
+		if (qual->rssi > -65) {
+			if (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ)
+				vgc += 0x20;
+			else
+				vgc += 0x10;
+		}
+		break;
+
+	case RT5592:
+		if (qual->rssi > -65)
+			vgc += 0x20;
+		break;
+
+	default:
+		if (qual->rssi > -80)
+			vgc += 0x10;
+		break;
+	}
 
 	rt2800_set_vgc(rt2x00dev, qual, vgc);
 }
···
 	ant = (div_mode == 3) ? 1 : 0;
 
 	/* check if this is a Bluetooth combo card */
-	if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 		u32 reg;
 
 		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
···
 	    rt2x00_rt_rev_lt(rt2x00dev, RT3071, REV_RT3071E) ||
 	    rt2x00_rt_rev_lt(rt2x00dev, RT3090, REV_RT3090E) ||
 	    rt2x00_rt_rev_lt(rt2x00dev, RT3390, REV_RT3390E)) {
-		if (!test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
+		if (!rt2x00_has_cap_external_lna_bg(rt2x00dev))
 			rt2x00_set_field8(&rfcsr, RFCSR17_R, 1);
 	}
 
···
 	rt2800_rfcsr_write(rt2x00dev, 28, 0x00);
 	rt2800_rfcsr_write(rt2x00dev, 29, 0x10);
 
-	rt2800_rfcsr_write(rt2x00dev, 30, 0x00);
+	rt2800_rfcsr_write(rt2x00dev, 30, 0x10);
 	rt2800_rfcsr_write(rt2x00dev, 31, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 32, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 33, 0x00);
···
 	rt2800_rfcsr_write(rt2x00dev, 56, 0x22);
 	rt2800_rfcsr_write(rt2x00dev, 57, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 58, 0x7f);
-	rt2800_rfcsr_write(rt2x00dev, 59, 0x63);
+	rt2800_rfcsr_write(rt2x00dev, 59, 0x8f);
 
 	rt2800_rfcsr_write(rt2x00dev, 60, 0x45);
 	if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F))
···
 	rt2800_rf_init_calibration(rt2x00dev, 2);
 
 	rt2800_rfcsr_write(rt2x00dev, 1, 0x17);
-	rt2800_rfcsr_write(rt2x00dev, 2, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 3, 0x88);
 	rt2800_rfcsr_write(rt2x00dev, 5, 0x10);
 	rt2800_rfcsr_write(rt2x00dev, 6, 0xe0);
···
 
 /*
  * RF value list for rt3xxx
- * Supports: 2.4 GHz (all) & 5.2 GHz (RF3052)
+ * Supports: 2.4 GHz (all) & 5.2 GHz (RF3052 & RF3053)
  */
 static const struct rf_channel rf_vals_3x[] = {
 	{1,  241, 2, 2 },
···
 	{196, 83, 0, 12, 1},
 };
 
-static const struct rf_channel rf_vals_3053[] = {
-	/* Channel, N, R, K */
-	{1, 241, 2, 2},
-	{2, 241, 2, 7},
-	{3, 242, 2, 2},
-	{4, 242, 2, 7},
-	{5, 243, 2, 2},
-	{6, 243, 2, 7},
-	{7, 244, 2, 2},
-	{8, 244, 2, 7},
-	{9, 245, 2, 2},
-	{10, 245, 2, 7},
-	{11, 246, 2, 2},
-	{12, 246, 2, 7},
-	{13, 247, 2, 2},
-	{14, 248, 2, 4},
-
-	{36, 0x56, 0, 4},
-	{38, 0x56, 0, 6},
-	{40, 0x56, 0, 8},
-	{44, 0x57, 0, 0},
-	{46, 0x57, 0, 2},
-	{48, 0x57, 0, 4},
-	{52, 0x57, 0, 8},
-	{54, 0x57, 0, 10},
-	{56, 0x58, 0, 0},
-	{60, 0x58, 0, 4},
-	{62, 0x58, 0, 6},
-	{64, 0x58, 0, 8},
-
-	{100, 0x5B, 0, 8},
-	{102, 0x5B, 0, 10},
-	{104, 0x5C, 0, 0},
-	{108, 0x5C, 0, 4},
-	{110, 0x5C, 0, 6},
-	{112, 0x5C, 0, 8},
-
-	/* NOTE: Channel 114 has been removed intentionally.
-	 * The EEPROM contains no TX power values for that,
-	 * and it is disabled in the vendor driver as well.
-	 */
-
-	{116, 0x5D, 0, 0},
-	{118, 0x5D, 0, 2},
-	{120, 0x5D, 0, 4},
-	{124, 0x5D, 0, 8},
-	{126, 0x5D, 0, 10},
-	{128, 0x5E, 0, 0},
-	{132, 0x5E, 0, 4},
-	{134, 0x5E, 0, 6},
-	{136, 0x5E, 0, 8},
-	{140, 0x5F, 0, 0},
-
-	{149, 0x5F, 0, 9},
-	{151, 0x5F, 0, 11},
-	{153, 0x60, 0, 1},
-	{157, 0x60, 0, 5},
-	{159, 0x60, 0, 7},
-	{161, 0x60, 0, 9},
-	{165, 0x61, 0, 1},
-	{167, 0x61, 0, 3},
-	{169, 0x61, 0, 5},
-	{171, 0x61, 0, 7},
-	{173, 0x61, 0, 9},
-};
-
 static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 {
 	struct hw_mode_spec *spec = &rt2x00dev->spec;
···
 		   rt2x00_rf(rt2x00dev, RF5392)) {
 		spec->num_channels = 14;
 		spec->channels = rf_vals_3x;
-	} else if (rt2x00_rf(rt2x00dev, RF3052)) {
+	} else if (rt2x00_rf(rt2x00dev, RF3052) ||
+		   rt2x00_rf(rt2x00dev, RF3053)) {
 		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		spec->num_channels = ARRAY_SIZE(rf_vals_3x);
 		spec->channels = rf_vals_3x;
-	} else if (rt2x00_rf(rt2x00dev, RF3053)) {
-		spec->supported_bands |= SUPPORT_BAND_5GHZ;
-		spec->num_channels = ARRAY_SIZE(rf_vals_3053);
-		spec->channels = rf_vals_3053;
 	} else if (rt2x00_rf(rt2x00dev, RF5592)) {
 		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 

drivers/net/wireless/rt2x00/rt2x00.h

···
 #include <linux/input-polldev.h>
 #include <linux/kfifo.h>
 #include <linux/hrtimer.h>
+#include <linux/average.h>
 
 #include <net/mac80211.h>
 
···
 				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
 #define SHORT_EIFS		( SIFS + SHORT_DIFS + \
 				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
-
-/*
- * Structure for average calculation
- * The avg field contains the actual average value,
- * but avg_weight is internally used during calculations
- * to prevent rounding errors.
- */
-struct avg_val {
-	int avg;
-	int avg_weight;
-};
 
 enum rt2x00_chip_intf {
 	RT2X00_CHIP_INTF_PCI,
···
 	 * Similar to the avg_rssi in the link_qual structure
 	 * this value is updated by using the walking average.
 	 */
-	struct avg_val rssi_ant;
+	struct ewma rssi_ant;
 };
 
 /*
···
 	/*
 	 * Currently active average RSSI value
 	 */
-	struct avg_val avg_rssi;
+	struct ewma avg_rssi;
 
 	/*
 	 * Work structure for scheduling periodic link tuning.
···
 static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
 {
 	return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
+}
+
+/* Helpers for capability flags */
+
+static inline bool
+rt2x00_has_cap_flag(struct rt2x00_dev *rt2x00dev,
+		    enum rt2x00_capability_flags cap_flag)
+{
+	return test_bit(cap_flag, &rt2x00dev->cap_flags);
+}
+
+static inline bool
+rt2x00_has_cap_hw_crypto(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_HW_CRYPTO);
+}
+
+static inline bool
+rt2x00_has_cap_power_limit(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_POWER_LIMIT);
+}
+
+static inline bool
+rt2x00_has_cap_control_filters(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTERS);
+}
+
+static inline bool
+rt2x00_has_cap_control_filter_pspoll(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTER_PSPOLL);
+}
+
+static inline bool
+rt2x00_has_cap_pre_tbtt_interrupt(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_PRE_TBTT_INTERRUPT);
+}
+
+static inline bool
+rt2x00_has_cap_link_tuning(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_LINK_TUNING);
+}
+
+static inline bool
+rt2x00_has_cap_frame_type(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_FRAME_TYPE);
+}
+
+static inline bool
+rt2x00_has_cap_rf_sequence(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_RF_SEQUENCE);
+}
+
+static inline bool
+rt2x00_has_cap_external_lna_a(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_A);
+}
+
+static inline bool
+rt2x00_has_cap_external_lna_bg(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_BG);
+}
+
+static inline bool
+rt2x00_has_cap_double_antenna(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_DOUBLE_ANTENNA);
+}
+
+static inline bool
+rt2x00_has_cap_bt_coexist(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_BT_COEXIST);
+}
+
+static inline bool
+rt2x00_has_cap_vco_recalibration(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_VCO_RECALIBRATION);
 }
 
 /**

drivers/net/wireless/rt2x00/rt2x00crypto.c

···
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
 
-	if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags) || !hw_key)
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || !hw_key)
 		return;
 
 	__set_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags);
···
 	struct ieee80211_key_conf *key = tx_info->control.hw_key;
 	unsigned int overhead = 0;
 
-	if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags) || !key)
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || !key)
 		return overhead;
 
 	/*

drivers/net/wireless/rt2x00/rt2x00debug.c

···
 				intf, &rt2x00debug_fop_queue_stats);
 
 #ifdef CONFIG_RT2X00_LIB_CRYPTO
-	if (test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_hw_crypto(rt2x00dev))
 		intf->crypto_stats_entry =
 		    debugfs_create_file("crypto", S_IRUGO, intf->queue_folder,
 					intf, &rt2x00debug_fop_crypto_stats);

drivers/net/wireless/rt2x00/rt2x00dev.c

···
 	rt2x00queue_start_queues(rt2x00dev);
 	rt2x00link_start_tuner(rt2x00dev);
 	rt2x00link_start_agc(rt2x00dev);
-	if (test_bit(CAPABILITY_VCO_RECALIBRATION, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
 		rt2x00link_start_vcocal(rt2x00dev);
 
 	/*
···
 	 * Stop all queues
 	 */
 	rt2x00link_stop_agc(rt2x00dev);
-	if (test_bit(CAPABILITY_VCO_RECALIBRATION, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
 		rt2x00link_stop_vcocal(rt2x00dev);
 	rt2x00link_stop_tuner(rt2x00dev);
 	rt2x00queue_stop_queues(rt2x00dev);
···
 	 * here as they will fetch the next beacon directly prior to
 	 * transmission.
 	 */
-	if (test_bit(CAPABILITY_PRE_TBTT_INTERRUPT, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_pre_tbtt_interrupt(rt2x00dev))
 		return;
 
 	/* fetch next beacon */
···
 	 * mac80211 will expect the same data to be present it the
 	 * frame as it was passed to us.
 	 */
-	if (test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_hw_crypto(rt2x00dev))
 		rt2x00crypto_tx_insert_iv(entry->skb, header_length);
 
 	/*

drivers/net/wireless/rt2x00/rt2x00link.c

···
  */
 #define DEFAULT_RSSI		-128
 
-/*
- * Helper struct and macro to work with moving/walking averages.
- * When adding a value to the average value the following calculation
- * is needed:
- *
- *        avg_rssi = ((avg_rssi * 7) + rssi) / 8;
- *
- * The advantage of this approach is that we only need 1 variable
- * to store the average in (No need for a count and a total).
- * But more importantly, normal average values will over time
- * move less and less towards newly added values this results
- * that with link tuning, the device can have a very good RSSI
- * for a few minutes but when the device is moved away from the AP
- * the average will not decrease fast enough to compensate.
- * The walking average compensates this and will move towards
- * the new values correctly allowing a effective link tuning,
- * the speed of the average moving towards other values depends
- * on the value for the number of samples. The higher the number
- * of samples, the slower the average will move.
- * We use two variables to keep track of the average value to
- * compensate for the rounding errors. This can be a significant
- * error (>5dBm) if the factor is too low.
- */
-#define AVG_SAMPLES	8
-#define AVG_FACTOR	1000
-#define MOVING_AVERAGE(__avg, __val) \
-({ \
-	struct avg_val __new; \
-	__new.avg_weight = \
-	    (__avg).avg_weight  ? \
-		((((__avg).avg_weight * ((AVG_SAMPLES) - 1)) + \
-		  ((__val) * (AVG_FACTOR))) / \
-		 (AVG_SAMPLES)) : \
-		((__val) * (AVG_FACTOR)); \
-	__new.avg = __new.avg_weight / (AVG_FACTOR); \
-	__new; \
-})
+/* Constants for EWMA calculations. */
+#define RT2X00_EWMA_FACTOR	1024
+#define RT2X00_EWMA_WEIGHT	8
+
+static inline int rt2x00link_get_avg_rssi(struct ewma *ewma)
+{
+	unsigned long avg;
+
+	avg = ewma_read(ewma);
+	if (avg)
+		return -avg;
+
+	return DEFAULT_RSSI;
+}
 
 static int rt2x00link_antenna_get_link_rssi(struct rt2x00_dev *rt2x00dev)
 {
 	struct link_ant *ant = &rt2x00dev->link.ant;
 
-	if (ant->rssi_ant.avg && rt2x00dev->link.qual.rx_success)
-		return ant->rssi_ant.avg;
+	if (rt2x00dev->link.qual.rx_success)
+		return rt2x00link_get_avg_rssi(&ant->rssi_ant);
+
 	return DEFAULT_RSSI;
 }
 
···
 
 static void rt2x00link_antenna_reset(struct rt2x00_dev *rt2x00dev)
 {
-	rt2x00dev->link.ant.rssi_ant.avg = 0;
-	rt2x00dev->link.ant.rssi_ant.avg_weight = 0;
+	ewma_init(&rt2x00dev->link.ant.rssi_ant, RT2X00_EWMA_FACTOR,
+		  RT2X00_EWMA_WEIGHT);
 }
 
 static void rt2x00lib_antenna_diversity_sample(struct rt2x00_dev *rt2x00dev)
···
 	/*
 	 * Update global RSSI
 	 */
-	link->avg_rssi = MOVING_AVERAGE(link->avg_rssi, rxdesc->rssi);
+	ewma_add(&link->avg_rssi, -rxdesc->rssi);
 
 	/*
 	 * Update antenna RSSI
 	 */
-	ant->rssi_ant = MOVING_AVERAGE(ant->rssi_ant, rxdesc->rssi);
+	ewma_add(&ant->rssi_ant, -rxdesc->rssi);
 }
 
 void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev)
···
 	 */
 	rt2x00dev->link.count = 0;
 	memset(qual, 0, sizeof(*qual));
+	ewma_init(&rt2x00dev->link.avg_rssi, RT2X00_EWMA_FACTOR,
+		  RT2X00_EWMA_WEIGHT);
 
 	/*
 	 * Restore the VGC level as stored in the registers,
···
 	 * collect the RSSI data we could use this. Otherwise we
 	 * must fallback to the default RSSI value.
 	 */
-	if (!link->avg_rssi.avg || !qual->rx_success)
+	if (!qual->rx_success)
 		qual->rssi = DEFAULT_RSSI;
 	else
-		qual->rssi = link->avg_rssi.avg;
+		qual->rssi = rt2x00link_get_avg_rssi(&link->avg_rssi);
 
 	/*
 	 * Check if link tuning is supported by the hardware, some hardware
 	 * do not support link tuning at all, while other devices can disable
 	 * the feature from the EEPROM.
 	 */
-	if (test_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_link_tuning(rt2x00dev))
 		rt2x00dev->ops->lib->link_tuner(rt2x00dev, qual, link->count);
 
 	/*
···
 void rt2x00link_register(struct rt2x00_dev *rt2x00dev)
 {
 	INIT_DELAYED_WORK(&rt2x00dev->link.agc_work, rt2x00link_agc);
-	if (test_bit(CAPABILITY_VCO_RECALIBRATION, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
 		INIT_DELAYED_WORK(&rt2x00dev->link.vco_work, rt2x00link_vcocal);
 	INIT_DELAYED_WORK(&rt2x00dev->link.watchdog_work, rt2x00link_watchdog);
 	INIT_DELAYED_WORK(&rt2x00dev->link.work, rt2x00link_tuner);

drivers/net/wireless/rt2x00/rt2x00mac.c

···
 	 * of different types, but has no a separate filter for PS Poll frames,
 	 * FIF_CONTROL flag implies FIF_PSPOLL.
 	 */
-	if (!test_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_control_filters(rt2x00dev)) {
 		if (*total_flags & FIF_CONTROL || *total_flags & FIF_PSPOLL)
 			*total_flags |= FIF_CONTROL | FIF_PSPOLL;
 	}
-	if (!test_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_control_filter_pspoll(rt2x00dev)) {
 		if (*total_flags & FIF_CONTROL)
 			*total_flags |= FIF_PSPOLL;
 	}
···
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
-	if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
 		return -EOPNOTSUPP;
 
 	/*

drivers/net/wireless/rt2x00/rt2x00pci.c

···
 	rt2x00dev->ops = ops;
 	rt2x00dev->hw = hw;
 	rt2x00dev->irq = pci_dev->irq;
-	rt2x00dev->name = pci_name(pci_dev);
+	rt2x00dev->name = ops->name;
 
 	if (pci_is_pcie(pci_dev))
 		rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);

drivers/net/wireless/rt2x00/rt2x00queue.c

···
 	 * at least 8 bytes bytes available in headroom for IV/EIV
 	 * and 8 bytes for ICV data as tailroon.
 	 */
-	if (test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_hw_crypto(rt2x00dev)) {
 		head_size += 8;
 		tail_size += 8;
 	}
···
 
 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop)
 {
-	bool started;
 	bool tx_queue =
 		(queue->qid == QID_AC_VO) ||
 		(queue->qid == QID_AC_VI) ||
 		(queue->qid == QID_AC_BE) ||
 		(queue->qid == QID_AC_BK);
 
-	mutex_lock(&queue->status_lock);
 
 	/*
-	 * If the queue has been started, we must stop it temporarily
-	 * to prevent any new frames to be queued on the device. If
-	 * we are not dropping the pending frames, the queue must
-	 * only be stopped in the software and not the hardware,
-	 * otherwise the queue will never become empty on its own.
+	 * If we are not supposed to drop any pending
+	 * frames, this means we must force a start (=kick)
+	 * to the queue to make sure the hardware will
+	 * start transmitting.
 	 */
-	started = test_bit(QUEUE_STARTED, &queue->flags);
-	if (started) {
-		/*
-		 * Pause the queue
-		 */
-		rt2x00queue_pause_queue(queue);
-
-		/*
-		 * If we are not supposed to drop any pending
-		 * frames, this means we must force a start (=kick)
-		 * to the queue to make sure the hardware will
-		 * start transmitting.
-		 */
-		if (!drop && tx_queue)
-			queue->rt2x00dev->ops->lib->kick_queue(queue);
-	}
+	if (!drop && tx_queue)
+		queue->rt2x00dev->ops->lib->kick_queue(queue);
 
 	/*
 	 * Check if driver supports flushing, if that is the case we can
···
 	if (unlikely(!rt2x00queue_empty(queue)))
 		rt2x00_warn(queue->rt2x00dev, "Queue %d failed to flush\n",
 			    queue->qid);
-
-	/*
-	 * Restore the queue to the previous status
-	 */
-	if (started)
-		rt2x00queue_unpause_queue(queue);
-
-	mutex_unlock(&queue->status_lock);
 }
 EXPORT_SYMBOL_GPL(rt2x00queue_flush_queue);
 

drivers/net/wireless/rt2x00/rt2x00usb.c

···
 	rt2x00_warn(queue->rt2x00dev, "TX queue %d DMA timed out, invoke forced forced reset\n",
 		    queue->qid);
 
+	rt2x00queue_stop_queue(queue);
 	rt2x00queue_flush_queue(queue, true);
+	rt2x00queue_start_queue(queue);
 }
 
 static int rt2x00usb_dma_timeout(struct data_queue *queue)

drivers/net/wireless/rt2x00/rt61pci.c

···
 
 	rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF2529));
 	rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
-			  !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags));
+			  !rt2x00_has_cap_frame_type(rt2x00dev));
 
 	/*
 	 * Configure the RX antenna.
···
 
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 		sel = antenna_sel_a;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_a(rt2x00dev);
 	} else {
 		sel = antenna_sel_bg;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_bg(rt2x00dev);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
···
 	else if (rt2x00_rf(rt2x00dev, RF2527))
 		rt61pci_config_antenna_2x(rt2x00dev, ant);
 	else if (rt2x00_rf(rt2x00dev, RF2529)) {
-		if (test_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_double_antenna(rt2x00dev))
 			rt61pci_config_antenna_2x(rt2x00dev, ant);
 		else
 			rt61pci_config_antenna_2529(rt2x00dev, ant);
···
 	short lna_gain = 0;
 
 	if (libconf->conf->chandef.chan->band == IEEE80211_BAND_2GHZ) {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev))
 			lna_gain += 14;
 
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
 		lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
 	} else {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev))
 			lna_gain += 14;
 
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
···
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 		low_bound = 0x28;
 		up_bound = 0x48;
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
 			low_bound += 0x10;
 			up_bound += 0x10;
 		}
 	} else {
 		low_bound = 0x20;
 		up_bound = 0x40;
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
 			low_bound += 0x10;
 			up_bound += 0x10;
 		}
···
 	 * eeprom word.
 	 */
 	if (rt2x00_rf(rt2x00dev, RF2529) &&
-	    !test_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags)) {
+	    !rt2x00_has_cap_double_antenna(rt2x00dev)) {
 		rt2x00dev->default_ant.rx =
 		    ANTENNA_A + rt2x00_get_field16(eeprom, EEPROM_NIC_RX_FIXED);
 		rt2x00dev->default_ant.tx =
···
 	spec->supported_bands = SUPPORT_BAND_2GHZ;
 	spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
 
-	if (!test_bit(CAPABILITY_RF_SEQUENCE, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_rf_sequence(rt2x00dev)) {
 		spec->num_channels = 14;
 		spec->channels = rf_vals_noseq;
 	} else {

drivers/net/wireless/rt2x00/rt73usb.c

···
 	switch (ant->rx) {
 	case ANTENNA_HW_DIVERSITY:
 		rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
-		temp = !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags)
-		       && (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ);
+		temp = !rt2x00_has_cap_frame_type(rt2x00dev) &&
+		       (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ);
 		rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, temp);
 		break;
 	case ANTENNA_A:
···
 
 	rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
 	rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
-			  !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags));
+			  !rt2x00_has_cap_frame_type(rt2x00dev));
 
 	/*
 	 * Configure the RX antenna.
···
 
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 		sel = antenna_sel_a;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_a(rt2x00dev);
 	} else {
 		sel = antenna_sel_bg;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_bg(rt2x00dev);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
···
 	short lna_gain = 0;
 
 	if (libconf->conf->chandef.chan->band == IEEE80211_BAND_2GHZ) {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev))
 			lna_gain += 14;
 
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
···
 		low_bound = 0x28;
 		up_bound = 0x48;
 
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
 			low_bound += 0x10;
 			up_bound += 0x10;
 		}
···
 			up_bound = 0x1c;
 		}
 
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
 			low_bound += 0x14;
 			up_bound += 0x10;
 		}
···
 	}
 
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
 			if (lna == 3 || lna == 2)
 				offset += 10;
 		} else {

drivers/net/wireless/ti/wl1251/wl1251.h

···
 #define CHIP_ID_1271_PG10	           (0x4030101)
 #define CHIP_ID_1271_PG20	           (0x4030111)
 
-#define WL1251_FW_NAME "wl1251-fw.bin"
-#define WL1251_NVS_NAME "wl1251-nvs.bin"
+#define WL1251_FW_NAME "ti-connectivity/wl1251-fw.bin"
+#define WL1251_NVS_NAME "ti-connectivity/wl1251-nvs.bin"
 
 #define WL1251_POWER_ON_SLEEP 10 /* in milliseconds */
 

include/linux/ieee80211.h

···
 #define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700
 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800
 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000
-#define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX		0x00006000
-#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00030000
+#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX			0x0000e000
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00070000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE			0x00080000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE			0x00100000
 #define IEEE80211_VHT_CAP_VHT_TXOP_PS				0x00200000

include/net/cfg80211.h

···
 			     u32 prohibited_flags);
 
 /**
+ * cfg80211_chandef_dfs_required - checks if radar detection is required
+ * @wiphy: the wiphy to validate against
+ * @chandef: the channel definition to check
+ * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
+ */
+int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
+				  const struct cfg80211_chan_def *chandef);
+
+/**
  * ieee80211_chandef_rate_flags - returns rate flags for a channel
  *
  * In some channel types, not all rates may be used - for example CCK

include/net/mac80211.h

···
  * @RX_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3
  * @RX_FLAG_10MHZ: 10 MHz (half channel) was used
  * @RX_FLAG_5MHZ: 5 MHz (quarter channel) was used
+ * @RX_FLAG_AMSDU_MORE: Some drivers may prefer to report separate A-MSDU
+ *	subframes instead of a one huge frame for performance reasons.
+ *	All, but the last MSDU from an A-MSDU should have this flag set. E.g.
+ *	if an A-MSDU has 3 frames, the first 2 must have the flag set, while
+ *	the 3rd (last) one must not have this flag set. The flag is used to
+ *	deal with retransmission/duplication recovery properly since A-MSDU
+ *	subframes share the same sequence number. Reported subframes can be
+ *	either regular MSDU or singly A-MSDUs. Subframes must not be
+ *	interleaved with other frames.
  */
 enum mac80211_rx_flags {
 	RX_FLAG_MMIC_ERROR		= BIT(0),
···
 	RX_FLAG_STBC_MASK		= BIT(26) | BIT(27),
 	RX_FLAG_10MHZ			= BIT(28),
 	RX_FLAG_5MHZ			= BIT(29),
+	RX_FLAG_AMSDU_MORE		= BIT(30),
 };
 
 #define RX_FLAG_STBC_SHIFT		26
···
  *
  * @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames
  *	only, to allow getting TBTT of a DTIM beacon.
+ *
+ * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
+ *	for a single active channel while using channel contexts. When support
+ *	is not enabled the default action is to disconnect when getting the
+ *	CSA frame.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_HAS_RATE_CONTROL			= 1<<0,
···
 	IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF		= 1<<25,
 	IEEE80211_HW_TIMING_BEACON_ONLY			= 1<<26,
 	IEEE80211_HW_SUPPORTS_HT_CCK_RATES		= 1<<27,
+	IEEE80211_HW_CHANCTX_STA_CSA			= 1<<28,
 };
 
 /**
···
  *	zero using ieee80211_csa_is_complete() after the beacon has been
  *	transmitted and then call ieee80211_csa_finish().
  *
+ * @join_ibss: Join an IBSS (on an IBSS interface); this is called after all
+ *	information in bss_conf is set up and the beacon can be retrieved. A
+ *	channel context is bound before this is called.
+ * @leave_ibss: Leave the IBSS again.
  */
 struct ieee80211_ops {
 	void (*tx)(struct ieee80211_hw *hw,
···
 	void (*channel_switch_beacon)(struct ieee80211_hw *hw,
 				      struct ieee80211_vif *vif,
 				      struct cfg80211_chan_def *chandef);
+
+	int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+	void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 };
 
 /**
···
 						    u8 *mac,
 						    struct ieee80211_vif *vif),
 						void *data);
+
+/**
+ * ieee80211_iterate_active_interfaces_rtnl - iterate active interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware that are currently active and calls the callback for them.
+ * This version can only be used while holding the RTNL.
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iter_flags: iteration flags, see &enum ieee80211_interface_iteration_flags
+ * @iterator: the iterator function to call, cannot sleep
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_active_interfaces_rtnl(struct ieee80211_hw *hw,
+					      u32 iter_flags,
+					      void (*iterator)(void *data,
+						u8 *mac,
+						struct ieee80211_vif *vif),
+					      void *data);
 
 /**
  * ieee80211_queue_work - add work onto the mac80211 workqueue

net/mac80211/cfg.c

···
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP))
-		return;
-
 	sdata->radar_required = sdata->csa_radar_required;
 	err = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
 					   &changed);
 	if (WARN_ON(err < 0))
 		return;
 
-	err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
-	if (err < 0)
-		return;
+	if (!local->use_chanctx) {
+		local->_oper_chandef = local->csa_chandef;
+		ieee80211_hw_config(local, 0);
+	}
 
-	changed |= err;
-	kfree(sdata->u.ap.next_beacon);
-	sdata->u.ap.next_beacon = NULL;
+	ieee80211_bss_info_change_notify(sdata, changed);
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+		err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
+		if (err < 0)
+			return;
+		changed |= err;
+		kfree(sdata->u.ap.next_beacon);
+		sdata->u.ap.next_beacon = NULL;
+
+		ieee80211_bss_info_change_notify(sdata, err);
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		ieee80211_ibss_finish_csa(sdata);
+		break;
+	default:
+		WARN_ON(1);
+		return;
+	}
 	sdata->vif.csa_active = false;
 
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
-
-	ieee80211_bss_info_change_notify(sdata, changed);
 
 	cfg80211_ch_switch_notify(sdata->dev, &local->csa_chandef);
 }
···
 	if (sdata->vif.csa_active)
 		return -EBUSY;
 
-	/* only handle AP for now. */
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP:
+		sdata->csa_counter_offset_beacon =
+			params->counter_offset_beacon;
+		sdata->csa_counter_offset_presp = params->counter_offset_presp;
+		sdata->u.ap.next_beacon =
+			cfg80211_beacon_dup(&params->beacon_after);
+		if (!sdata->u.ap.next_beacon)
+			return -ENOMEM;
+
+		err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
+		if (err < 0) {
+			kfree(sdata->u.ap.next_beacon);
+			return err;
+		}
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		if (!sdata->vif.bss_conf.ibss_joined)
+			return -EINVAL;
+
+		if (params->chandef.width != sdata->u.ibss.chandef.width)
+			return -EINVAL;
+
+		switch (params->chandef.width) {
+		case NL80211_CHAN_WIDTH_40:
+			if (cfg80211_get_chandef_type(&params->chandef) !=
+			    cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
+				return -EINVAL;
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
+		case NL80211_CHAN_WIDTH_20_NOHT:
+		case NL80211_CHAN_WIDTH_20:
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		/* changes into another band are not supported */
+		if (sdata->u.ibss.chandef.chan->band !=
+		    params->chandef.chan->band)
+			return -EINVAL;
+
+		err = ieee80211_ibss_csa_beacon(sdata, params);
+		if (err < 0)
+			return err;
 		break;
 	default:
 		return -EOPNOTSUPP;
 	}
 
-	sdata->u.ap.next_beacon = cfg80211_beacon_dup(&params->beacon_after);
-	if (!sdata->u.ap.next_beacon)
-		return -ENOMEM;
-
-	sdata->csa_counter_offset_beacon = params->counter_offset_beacon;
-	sdata->csa_counter_offset_presp = params->counter_offset_presp;
 	sdata->csa_radar_required = params->radar_required;
 
 	if (params->block_tx)
 		ieee80211_stop_queues_by_reason(&local->hw,
 				IEEE80211_MAX_QUEUE_MAP,
 				IEEE80211_QUEUE_STOP_REASON_CSA);
-
-	err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
-	if (err < 0)
-		return err;
 
 	local->csa_chandef = params->chandef;
 	sdata->vif.csa_active = true;
···
 			need_offchan = true;
 		if (!ieee80211_is_action(mgmt->frame_control) ||
 		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
-		    mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED)
+		    mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
+		    mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
 			break;
 		rcu_read_lock();
 		sta = sta_info_get(sdata, mgmt->da);

net/mac80211/chan.c

···
 	chanctx_changed |= IEEE80211_CHANCTX_CHANGE_CHANNEL;
 	drv_change_chanctx(local, ctx, chanctx_changed);
 
-	if (!local->use_chanctx) {
-		local->_oper_chandef = *chandef;
-		ieee80211_hw_config(local, 0);
-	}
-
 	ieee80211_recalc_chanctx_chantype(local, ctx);
 	ieee80211_recalc_smps_chanctx(local, ctx);
 	ieee80211_recalc_radar_chanctx(local, ctx);

net/mac80211/debugfs.c

···
 	if (!buf)
 		return 0;
 
-	sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
+	sf += scnprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
 	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
-		sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
+		sf += scnprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
 	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
-		sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
 	if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
-		sf += snprintf(buf + sf, mxln - sf,
-			       "HOST_BCAST_PS_BUFFERING\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"HOST_BCAST_PS_BUFFERING\n");
 	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
-		sf += snprintf(buf + sf, mxln - sf,
-			       "2GHZ_SHORT_SLOT_INCAPABLE\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"2GHZ_SHORT_SLOT_INCAPABLE\n");
 	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
-		sf += snprintf(buf + sf, mxln - sf,
-			       "2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
 	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
-		sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
 	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-		sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
 	if (local->hw.flags & IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC)
-		sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_BEFORE_ASSOC\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"NEED_DTIM_BEFORE_ASSOC\n");
 	if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
-		sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
 	if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
-		sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
+		sf += scnprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
 	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-		sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
+		sf += scnprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
 	if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
-		sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
+		sf += scnprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"SUPPORTS_DYNAMIC_SMPS\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
 	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
-		sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"REPORTS_TX_ACK_STATUS\n");
 	if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
-		sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
+		sf += scnprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
 	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
-		sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
 	if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
-		sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
+		sf += scnprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
 
 	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 	kfree(buf);

net/mac80211/driver-ops.h

···
 	}
 }
 
+static inline int drv_join_ibss(struct ieee80211_local *local,
+				struct ieee80211_sub_if_data *sdata)
+{
+	int ret = 0;
+
+	might_sleep();
+	check_sdata_in_driver(sdata);
+
+	trace_drv_join_ibss(local, sdata, &sdata->vif.bss_conf);
+	if (local->ops->join_ibss)
+		ret = local->ops->join_ibss(&local->hw, &sdata->vif);
+	trace_drv_return_int(local, ret);
+	return ret;
+}
+
+static inline void drv_leave_ibss(struct ieee80211_local *local,
+				  struct ieee80211_sub_if_data *sdata)
+{
+	might_sleep();
+	check_sdata_in_driver(sdata);
+
+	trace_drv_leave_ibss(local, sdata);
+	if (local->ops->leave_ibss)
+		local->ops->leave_ibss(&local->hw, &sdata->vif);
+	trace_drv_return_void(local);
+}
+
 #endif /* __MAC80211_DRIVER_OPS */

net/mac80211/ibss.c

···
 			   const int beacon_int, const u32 basic_rates,
 			   const u16 capability, u64 tsf,
 			   struct cfg80211_chan_def *chandef,
-			   bool *have_higher_than_11mbit)
+			   bool *have_higher_than_11mbit,
+			   struct cfg80211_csa_settings *csa_settings)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
···
 		    2 + 8 /* max Supported Rates */ +
 		    3 /* max DS params */ +
 		    4 /* IBSS params */ +
+		    5 /* Channel Switch Announcement */ +
 		    2 + (IEEE80211_MAX_SUPP_RATES - 8) +
 		    2 + sizeof(struct ieee80211_ht_cap) +
 		    2 + sizeof(struct ieee80211_ht_operation) +
···
 	/* FIX: set ATIM window based on scan results */
 	*pos++ = 0;
 	*pos++ = 0;
+
+	if (csa_settings) {
+		*pos++ = WLAN_EID_CHANNEL_SWITCH;
+		*pos++ = 3;
+		*pos++ = csa_settings->block_tx ? 1 : 0;
+		*pos++ = ieee80211_frequency_to_channel(
+				csa_settings->chandef.chan->center_freq);
+		sdata->csa_counter_offset_beacon = (pos - presp->head);
+		*pos++ = csa_settings->count;
+	}
 
 	/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
 	if (rates_n > 8) {
···
 	struct beacon_data *presp;
 	enum nl80211_bss_scan_width scan_width;
 	bool have_higher_than_11mbit;
+	int err;
 
 	sdata_assert_lock(sdata);
 
···
 		ieee80211_bss_info_change_notify(sdata,
 						 BSS_CHANGED_IBSS |
 						 BSS_CHANGED_BEACON_ENABLED);
+		drv_leave_ibss(local, sdata);
 	}
 
 	presp = rcu_dereference_protected(ifibss->presp,
···
 
 	presp = ieee80211_ibss_build_presp(sdata, beacon_int, basic_rates,
 					   capability, tsf, &chandef,
-					   &have_higher_than_11mbit);
+					   &have_higher_than_11mbit, NULL);
 	if (!presp)
 		return;
 
···
 	else
 		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
 
+	ieee80211_set_wmm_default(sdata, true);
+
 	sdata->vif.bss_conf.ibss_joined = true;
 	sdata->vif.bss_conf.ibss_creator = creator;
-	ieee80211_bss_info_change_notify(sdata, bss_change);
 
-	ieee80211_set_wmm_default(sdata, true);
+	err = drv_join_ibss(local, sdata);
+	if (err) {
+		sdata->vif.bss_conf.ibss_joined = false;
+		sdata->vif.bss_conf.ibss_creator = false;
+		sdata->vif.bss_conf.enable_beacon = false;
+		sdata->vif.bss_conf.ssid_len = 0;
+		RCU_INIT_POINTER(ifibss->presp, NULL);
+		kfree_rcu(presp, rcu_head);
+		ieee80211_vif_release_channel(sdata);
+		sdata_info(sdata, "Failed to join IBSS, driver failure: %d\n",
+			   err);
+		return;
+	}
+
+	ieee80211_bss_info_change_notify(sdata, bss_change);
 
 	ifibss->state = IEEE80211_IBSS_MLME_JOINED;
 	mod_timer(&ifibss->timer,
···
 				  tsf, false);
 }
 
+static int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
+				     struct cfg80211_csa_settings *csa_settings)
+{
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	int freq;
+	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) +
+		      sizeof(mgmt->u.action.u.chan_switch);
+	u8 *pos;
+
+	skb = dev_alloc_skb(local->tx_headroom + hdr_len +
+			    5 +	/* channel switch announcement element */
+			    3);	/* secondary channel offset element */
+	if (!skb)
+		return -1;
+
+	skb_reserve(skb, local->tx_headroom);
+	mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len);
+	memset(mgmt, 0, hdr_len);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	eth_broadcast_addr(mgmt->da);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
+	mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+	mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
+	pos = skb_put(skb, 5);
+	*pos++ = WLAN_EID_CHANNEL_SWITCH;			/* EID */
+	*pos++ = 3;						/* IE length */
+	*pos++ = csa_settings->block_tx ? 1 : 0;		/* CSA mode */
+	freq = csa_settings->chandef.chan->center_freq;
+	*pos++ = ieee80211_frequency_to_channel(freq);		/* channel */
+	*pos++ = csa_settings->count;				/* count */
+
+	if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
+		enum nl80211_channel_type ch_type;
+
+		skb_put(skb, 3);
+		*pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET;	/* EID */
+		*pos++ = 1;					/* IE length */
+		ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
+		if (ch_type == NL80211_CHAN_HT40PLUS)
+			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+		else
+			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	}
+
+	ieee80211_tx_skb(sdata, skb);
+	return 0;
+}
+
+int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct beacon_data *presp, *old_presp;
+	struct cfg80211_bss *cbss;
+	const struct cfg80211_bss_ies *ies;
+	u16 capability;
+	u64 tsf;
+	int ret = 0;
+
+	sdata_assert_lock(sdata);
+
+	capability = WLAN_CAPABILITY_IBSS;
+
+	if (ifibss->privacy)
+		capability |= WLAN_CAPABILITY_PRIVACY;
+
+	cbss = cfg80211_get_bss(sdata->local->hw.wiphy, ifibss->chandef.chan,
+				ifibss->bssid, ifibss->ssid,
+				ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+				WLAN_CAPABILITY_PRIVACY,
+				capability);
+
+	if (WARN_ON(!cbss)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	rcu_read_lock();
+	ies = rcu_dereference(cbss->ies);
+	tsf = ies->tsf;
+	rcu_read_unlock();
+	cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+
+	old_presp = rcu_dereference_protected(ifibss->presp,
+					  lockdep_is_held(&sdata->wdev.mtx));
+
+	presp = ieee80211_ibss_build_presp(sdata,
+					   sdata->vif.bss_conf.beacon_int,
+					   sdata->vif.bss_conf.basic_rates,
+					   capability, tsf, &ifibss->chandef,
+					   NULL, csa_settings);
+	if (!presp) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	rcu_assign_pointer(ifibss->presp, presp);
+	if (old_presp)
+		kfree_rcu(old_presp, rcu_head);
+
+	/* it might not send the beacon for a while. send an action frame
+	 * immediately to announce the channel switch.
+	 */
+	if (csa_settings)
+		ieee80211_send_action_csa(sdata, csa_settings);
+
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ out:
+	return ret;
+}
+
+int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct cfg80211_bss *cbss;
+	int err;
+	u16 capability;
+
+	sdata_lock(sdata);
+	/* update cfg80211 bss information with the new channel */
+	if (!is_zero_ether_addr(ifibss->bssid)) {
+		capability = WLAN_CAPABILITY_IBSS;
+
+		if (ifibss->privacy)
+			capability |= WLAN_CAPABILITY_PRIVACY;
+
+		cbss = cfg80211_get_bss(sdata->local->hw.wiphy,
+					ifibss->chandef.chan,
+					ifibss->bssid, ifibss->ssid,
+					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+					WLAN_CAPABILITY_PRIVACY,
+					capability);
+		/* XXX: should not really modify cfg80211 data */
+		if (cbss) {
+			cbss->channel = sdata->local->csa_chandef.chan;
+			cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+		}
+	}
+
+	ifibss->chandef = sdata->local->csa_chandef;
+
+	/* generate the beacon */
+	err = ieee80211_ibss_csa_beacon(sdata, NULL);
+	sdata_unlock(sdata);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	cancel_work_sync(&ifibss->csa_connection_drop_work);
+}
+
 static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta)
 	__acquires(RCU)
 {
···
 			ieee80211_mandatory_rates(sband, scan_width);
 
 	return ieee80211_ibss_finish_sta(sta);
+}
+
+static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	int active = 0;
+	struct sta_info *sta;
+
+	sdata_assert_lock(sdata);
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (sta->sdata == sdata &&
+		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
+			       jiffies)) {
+			active++;
+			break;
+		}
+	}
+
+	rcu_read_unlock();
+
+	return active;
+}
+
+static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	struct cfg80211_bss *cbss;
+	struct beacon_data *presp;
+	struct sta_info *sta;
+	int active_ibss;
+	u16 capability;
+
+	active_ibss = ieee80211_sta_active_ibss(sdata);
+
+	if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
+		capability = WLAN_CAPABILITY_IBSS;
+
+		if (ifibss->privacy)
+			capability |= WLAN_CAPABILITY_PRIVACY;
+
+		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
+					ifibss->bssid, ifibss->ssid,
+					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+					WLAN_CAPABILITY_PRIVACY,
+					capability);
+
+		if (cbss) {
+			cfg80211_unlink_bss(local->hw.wiphy, cbss);
+			cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+		}
+	}
+
+	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+
+	sta_info_flush(sdata);
+
+	spin_lock_bh(&ifibss->incomplete_lock);
+	while (!list_empty(&ifibss->incomplete_stations)) {
+		sta = list_first_entry(&ifibss->incomplete_stations,
+				       struct sta_info, list);
+		list_del(&sta->list);
+		spin_unlock_bh(&ifibss->incomplete_lock);
+
+		sta_info_free(local, sta);
+		spin_lock_bh(&ifibss->incomplete_lock);
+	}
+	spin_unlock_bh(&ifibss->incomplete_lock);
+
+	netif_carrier_off(sdata->dev);
+
+	sdata->vif.bss_conf.ibss_joined = false;
+	sdata->vif.bss_conf.ibss_creator = false;
+	sdata->vif.bss_conf.enable_beacon = false;
+	sdata->vif.bss_conf.ssid_len = 0;
+
+	/* remove beacon */
+	presp = rcu_dereference_protected(ifibss->presp,
+					  lockdep_is_held(&sdata->wdev.mtx));
+	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
+	if (presp)
+		kfree_rcu(presp, rcu_head);
+
+	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+						BSS_CHANGED_IBSS);
+	drv_leave_ibss(local, sdata);
+	ieee80211_vif_release_channel(sdata);
+}
+
+static void ieee80211_csa_connection_drop_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data,
+			     u.ibss.csa_connection_drop_work);
+
+	ieee80211_ibss_disconnect(sdata);
+	synchronize_rcu();
+	skb_queue_purge(&sdata->skb_queue);
+
+	/* trigger a scan to find another IBSS network to join */
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+}
+
+static bool
+ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+				  struct ieee802_11_elems *elems,
+				  bool beacon)
+{
+	struct cfg80211_csa_settings params;
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_chanctx *chanctx;
+	enum nl80211_channel_type ch_type;
+	int err, num_chanctx;
+	u32 sta_flags;
+	u8 mode;
+
+	if (sdata->vif.csa_active)
+		return true;
+
+	if (!sdata->vif.bss_conf.ibss_joined)
+		return false;
+
+	sta_flags = IEEE80211_STA_DISABLE_VHT;
+	switch (ifibss->chandef.width) {
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		sta_flags |= IEEE80211_STA_DISABLE_HT;
+		/* fall through */
+	case NL80211_CHAN_WIDTH_20:
+		sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
+		break;
+	default:
+		break;
+	}
+
+	memset(&params, 0, sizeof(params));
+	err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon,
+					   ifibss->chandef.chan->band,
+					   sta_flags, ifibss->bssid,
+					   &params.count, &mode,
+					   &params.chandef);
+
+	/* can't switch to destination channel, fail */
+	if (err < 0)
+		goto disconnect;
+
+	/* did not contain a CSA */
+	if (err)
+		return false;
+
+	if (ifibss->chandef.chan->band != params.chandef.chan->band)
+		goto disconnect;
+
+	switch (ifibss->chandef.width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+	case NL80211_CHAN_WIDTH_20:
+	case NL80211_CHAN_WIDTH_40:
+		/* keep our current HT mode (HT20/HT40+/HT40-), even if
+		 * another mode  has been announced. The mode is not adopted
+		 * within the beacon while doing CSA and we should therefore
+		 * keep the mode which we announce.
+		 */
+		ch_type = cfg80211_get_chandef_type(&ifibss->chandef);
+		cfg80211_chandef_create(&params.chandef, params.chandef.chan,
+					ch_type);
+		break;
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+		if (params.chandef.width != ifibss->chandef.width) {
+			sdata_info(sdata,
+				   "IBSS %pM received channel switch from incompatible channel width (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
+				   ifibss->bssid,
+				   params.chandef.chan->center_freq,
+				   params.chandef.width,
+				   params.chandef.center_freq1,
+				   params.chandef.center_freq2);
+			goto disconnect;
+		}
+		break;
+	default:
+		/* should not happen, sta_flags should prevent VHT modes. */
+		WARN_ON(1);
+		goto disconnect;
+	}
+
+	if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
+				     IEEE80211_CHAN_DISABLED)) {
+		sdata_info(sdata,
+			   "IBSS %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
+			   ifibss->bssid,
+			   params.chandef.chan->center_freq,
+			   params.chandef.width,
+			   params.chandef.center_freq1,
+			   params.chandef.center_freq2);
+		goto disconnect;
+	}
+
+	err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
+					    &params.chandef);
+	if (err < 0)
+		goto disconnect;
+	if (err) {
+		params.radar_required = true;
+
+		/* TODO: IBSS-DFS not (yet) supported, disconnect. */
+		goto disconnect;
+	}
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!chanctx_conf) {
+		rcu_read_unlock();
+		goto disconnect;
+	}
+
+	/* don't handle for multi-VIF cases */
+	chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
+	if (chanctx->refcount > 1) {
+		rcu_read_unlock();
+		goto disconnect;
+	}
+	num_chanctx = 0;
+	list_for_each_entry_rcu(chanctx, &sdata->local->chanctx_list, list)
+		num_chanctx++;
+
+	if (num_chanctx > 1) {
+		rcu_read_unlock();
+		goto disconnect;
+	}
+	rcu_read_unlock();
+
+	/* all checks done, now perform the channel switch. */
+	ibss_dbg(sdata,
+		 "received channel switch announcement to go to channel %d MHz\n",
+		 params.chandef.chan->center_freq);
+
+	params.block_tx = !!mode;
+
+	ieee80211_ibss_csa_beacon(sdata, &params);
+	sdata->csa_radar_required = params.radar_required;
+
+	if (params.block_tx)
+		ieee80211_stop_queues_by_reason(&sdata->local->hw,
+				IEEE80211_MAX_QUEUE_MAP,
+				IEEE80211_QUEUE_STOP_REASON_CSA);
+
+	sdata->local->csa_chandef = params.chandef;
+	sdata->vif.csa_active = true;
+
+	ieee80211_bss_info_change_notify(sdata, err);
+	drv_channel_switch_beacon(sdata, &params.chandef);
+
+	return true;
+disconnect:
+	ibss_dbg(sdata, "Can't handle channel switch, disconnect\n");
+	ieee80211_queue_work(&sdata->local->hw,
+			     &ifibss->csa_connection_drop_work);
+
+	return true;
+}
+
+static void
+ieee80211_rx_mgmt_spectrum_mgmt(struct ieee80211_sub_if_data *sdata,
+				struct ieee80211_mgmt *mgmt, size_t len,
+				struct ieee80211_rx_status *rx_status,
+				struct ieee802_11_elems *elems)
+{
+	int required_len;
+
+	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+		return;
+
+	/* CSA is the only action we handle for now */
+	if (mgmt->u.action.u.measurement.action_code !=
+	    WLAN_ACTION_SPCT_CHL_SWITCH)
+		return;
+
+	required_len = IEEE80211_MIN_ACTION_SIZE +
+		       sizeof(mgmt->u.action.u.chan_switch);
+	if (len < required_len)
+		return;
+
+	ieee80211_ibss_process_chanswitch(sdata, elems, false);
 }
 
 static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
···
 
 	/* check if we need to merge IBSS */
 
-	/* we use a fixed BSSID */
-	if (sdata->u.ibss.fixed_bssid)
-		goto put_bss;
-
 	/* not an IBSS */
 	if (!(cbss->capability & WLAN_CAPABILITY_IBSS))
 		goto put_bss;
···
 				sdata->u.ibss.ssid_len))
 		goto put_bss;
 
+	/* process channel switch */
+	if (ieee80211_ibss_process_chanswitch(sdata, elems, true))
+		goto put_bss;
+
 	/* same BSSID */
 	if (ether_addr_equal(cbss->bssid, sdata->u.ibss.bssid))
+		goto put_bss;
+
+	/* we use a fixed BSSID */
+	if (sdata->u.ibss.fixed_bssid)
 		goto put_bss;
 
 	if (ieee80211_have_rx_timestamp(rx_status)) {
···
 	list_add(&sta->list, &ifibss->incomplete_stations);
 	spin_unlock(&ifibss->incomplete_lock);
 	ieee80211_queue_work(&local->hw, &sdata->work);
-}
-
-static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_local *local = sdata->local;
-	int active = 0;
-	struct sta_info *sta;
-
-	sdata_assert_lock(sdata);
-
-	rcu_read_lock();
-
-	list_for_each_entry_rcu(sta, &local->sta_list, list) {
-		if (sta->sdata == sdata &&
-		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
-			       jiffies)) {
-			active++;
-			break;
-		}
-	}
-
-	rcu_read_unlock();
-
-	return active;
 }
 
 static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata)
···
 	struct ieee80211_rx_status *rx_status;
 	struct ieee80211_mgmt *mgmt;
 	u16 fc;
+	struct ieee802_11_elems elems;
+	int ies_len;
 
 	rx_status = IEEE80211_SKB_RXCB(skb);
 	mgmt = (struct ieee80211_mgmt *) skb->data;
···
 	case IEEE80211_STYPE_DEAUTH:
 		ieee80211_rx_mgmt_deauth_ibss(sdata, mgmt, skb->len);
 		break;
+	case IEEE80211_STYPE_ACTION:
+		switch (mgmt->u.action.category) {
+		case WLAN_CATEGORY_SPECTRUM_MGMT:
+			ies_len = skb->len -
+				  offsetof(struct ieee80211_mgmt,
+					   u.action.u.chan_switch.variable);
+
+			if (ies_len < 0)
+				break;
+
+			ieee802_11_parse_elems(
+				mgmt->u.action.u.chan_switch.variable,
+				ies_len, true, &elems);
+
+			if (elems.parse_error)
+				break;
+
+			ieee80211_rx_mgmt_spectrum_mgmt(sdata, mgmt, skb->len,
+							rx_status, &elems);
+			break;
+		}
 	}
 
  mgmt_out:
···
 		    (unsigned long) sdata);
 	INIT_LIST_HEAD(&ifibss->incomplete_stations);
 	spin_lock_init(&ifibss->incomplete_lock);
+	INIT_WORK(&ifibss->csa_connection_drop_work,
+		  ieee80211_csa_connection_drop_work);
 }
 
 /* scan finished notification */
···
 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-	struct ieee80211_local *local = sdata->local;
-	struct cfg80211_bss *cbss;
-	u16 capability;
-	int active_ibss;
-	struct sta_info *sta;
-	struct beacon_data *presp;
 
-	active_ibss = ieee80211_sta_active_ibss(sdata);
-
-	if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
-		capability = WLAN_CAPABILITY_IBSS;
-
-		if (ifibss->privacy)
-			capability |= WLAN_CAPABILITY_PRIVACY;
-
-		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
-					ifibss->bssid, ifibss->ssid,
-					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
-					WLAN_CAPABILITY_PRIVACY,
-					capability);
-
-		if (cbss) {
-			cfg80211_unlink_bss(local->hw.wiphy, cbss);
-			cfg80211_put_bss(local->hw.wiphy, cbss);
-		}
-	}
-
-	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
-	memset(ifibss->bssid, 0, ETH_ALEN);
+	ieee80211_ibss_disconnect(sdata);
 	ifibss->ssid_len = 0;
-
-	sta_info_flush(sdata);
-
-	spin_lock_bh(&ifibss->incomplete_lock);
-	while (!list_empty(&ifibss->incomplete_stations)) {
-		sta = list_first_entry(&ifibss->incomplete_stations,
-				       struct sta_info, list);
-		list_del(&sta->list);
-		spin_unlock_bh(&ifibss->incomplete_lock);
-
-		sta_info_free(local, sta);
-		spin_lock_bh(&ifibss->incomplete_lock);
-	}
-	spin_unlock_bh(&ifibss->incomplete_lock);
-
-	netif_carrier_off(sdata->dev);
+	memset(ifibss->bssid, 0, ETH_ALEN);
 
 	/* remove beacon */
 	kfree(sdata->u.ibss.ie);
-	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&sdata->wdev.mtx));
-	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
 
 	/* on the next join, re-program HT parameters */
 	memset(&ifibss->ht_capa, 0, sizeof(ifibss->ht_capa));
 	memset(&ifibss->ht_capa_mask, 0, sizeof(ifibss->ht_capa_mask));
 
-	sdata->vif.bss_conf.ibss_joined = false;
-	sdata->vif.bss_conf.ibss_creator = false;
-	sdata->vif.bss_conf.enable_beacon = false;
-	sdata->vif.bss_conf.ssid_len = 0;
-	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
-						BSS_CHANGED_IBSS);
-	ieee80211_vif_release_channel(sdata);
 	synchronize_rcu();
-	kfree(presp);
 
 	skb_queue_purge(&sdata->skb_queue);
 

net/mac80211/ieee80211_i.h

···
 
 /* flags used in struct ieee80211_if_managed.flags */
 enum ieee80211_sta_flags {
-	IEEE80211_STA_BEACON_POLL	= BIT(0),
 	IEEE80211_STA_CONNECTION_POLL	= BIT(1),
 	IEEE80211_STA_CONTROL_PORT	= BIT(2),
 	IEEE80211_STA_DISABLE_HT	= BIT(4),
···
 
 struct ieee80211_if_ibss {
 	struct timer_list timer;
+	struct work_struct csa_connection_drop_work;
 
 	unsigned long last_scan_completed;
 
···
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				   struct sk_buff *skb);
+int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings);
+int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
+void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
 
 /* mesh code */
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
···
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_mgmt *mgmt,
 				       size_t len);
+/**
+ * ieee80211_parse_ch_switch_ie - parses channel switch IEs
+ * @sdata: the sdata of the interface which has received the frame
+ * @elems: parsed 802.11 elements received with the frame
+ * @beacon: indicates if the frame was a beacon or probe response
+ * @current_band: indicates the current band
+ * @sta_flags: contains information about own capabilities and restrictions
+ *	to decide which channel switch announcements can be accepted. Only the
+ *	following subset of &enum ieee80211_sta_flags are evaluated:
+ *	%IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
+ *	%IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
+ *	%IEEE80211_STA_DISABLE_160MHZ.
+ * @count: to be filled with the counter until the switch (on success only)
+ * @bssid: the currently connected bssid (for reporting)
+ * @mode: to be filled with CSA mode (on success only)
+ * @new_chandef: to be filled with destination chandef (on success only)
+ * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
+ */
+int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
+				 struct ieee802_11_elems *elems, bool beacon,
+				 enum ieee80211_band current_band,
+				 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
+				 struct cfg80211_chan_def *new_chandef);
 
 /* Suspend/resume and hw reconfiguration */
 int ieee80211_reconfig(struct ieee80211_local *local);
···
 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
 				  const struct ieee80211_ht_operation *ht_oper,
 				  struct cfg80211_chan_def *chandef);
+u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
 
 int __must_check
 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,

net/mac80211/iface.c

···
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		ieee80211_mgd_stop(sdata);
 
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		ieee80211_ibss_stop(sdata);
+
+
 	/*
 	 * Remove all stations associated with this interface.
 	 *

net/mac80211/key.c

···
 				  keyconf->keylen, keyconf->key,
 				  0, NULL);
 	if (IS_ERR(key))
-		return ERR_PTR(PTR_ERR(key));
+		return ERR_CAST(key);
 
 	if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 		key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;

net/mac80211/mlme.c

···
 	return (1 << ecw) - 1;
 }
 
-static u32 chandef_downgrade(struct cfg80211_chan_def *c)
-{
-	u32 ret;
-	int tmp;
-
-	switch (c->width) {
-	case NL80211_CHAN_WIDTH_20:
-		c->width = NL80211_CHAN_WIDTH_20_NOHT;
-		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_40:
-		c->width = NL80211_CHAN_WIDTH_20;
-		c->center_freq1 = c->chan->center_freq;
-		ret = IEEE80211_STA_DISABLE_40MHZ |
-		      IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_80:
-		tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
-		/* n_P40 */
-		tmp /= 2;
-		/* freq_P40 */
-		c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
-		c->width = NL80211_CHAN_WIDTH_40;
-		ret = IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_80P80:
-		c->center_freq2 = 0;
-		c->width = NL80211_CHAN_WIDTH_80;
-		ret = IEEE80211_STA_DISABLE_80P80MHZ |
-		      IEEE80211_STA_DISABLE_160MHZ;
-		break;
-	case NL80211_CHAN_WIDTH_160:
-		/* n_P20 */
-		tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
-		/* n_P80 */
-		tmp /= 4;
-		c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
-		c->width = NL80211_CHAN_WIDTH_80;
-		ret = IEEE80211_STA_DISABLE_80P80MHZ |
-		      IEEE80211_STA_DISABLE_160MHZ;
-		break;
-	default:
-	case NL80211_CHAN_WIDTH_20_NOHT:
-		WARN_ON_ONCE(1);
-		c->width = NL80211_CHAN_WIDTH_20_NOHT;
-		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_5:
-	case NL80211_CHAN_WIDTH_10:
-		WARN_ON_ONCE(1);
-		/* keep c->width */
-		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
-		break;
-	}
-
-	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
-
-	return ret;
-}
-
 static u32
 ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
 			     struct ieee80211_supported_band *sband,
···
 			break;
 		}
 
-		ret |= chandef_downgrade(chandef);
+		ret |= ieee80211_chandef_downgrade(chandef);
 	}
 
 	if (chandef->width != vht_chandef.width && !tracking)
···
 	 */
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
 	    chandef.width == NL80211_CHAN_WIDTH_80P80)
-		flags |= chandef_downgrade(&chandef);
+		flags |= ieee80211_chandef_downgrade(&chandef);
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
 	    chandef.width == NL80211_CHAN_WIDTH_160)
-		flags |= chandef_downgrade(&chandef);
+		flags |= ieee80211_chandef_downgrade(&chandef);
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
 	    chandef.width > NL80211_CHAN_WIDTH_20)
-		flags |= chandef_downgrade(&chandef);
+		flags |= ieee80211_chandef_downgrade(&chandef);
 
 	if (cfg80211_chandef_identical(&chandef, &sdata->vif.bss_conf.chandef))
 		return 0;
···
 	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
 		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
 
-	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL))
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)
 		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE;
 
 	ieee80211_tx_skb(sdata, skb);
···
 		container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	u32 changed = 0;
+	int ret;
 
 	if (!ieee80211_sdata_running(sdata))
 		return;
···
 	if (!ifmgd->associated)
 		goto out;
 
-	local->_oper_chandef = local->csa_chandef;
+	ret = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
+					   &changed);
+	if (ret) {
+		sdata_info(sdata,
+			   "vif channel switch failed, disconnecting\n");
+		ieee80211_queue_work(&sdata->local->hw,
+				     &ifmgd->csa_connection_drop_work);
+		goto out;
+	}
 
-	if (!local->ops->channel_switch) {
-		/* call "hw_config" only if doing sw channel switch */
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-	} else {
-		/* update the device channel directly */
-		local->hw.conf.chandef = local->_oper_chandef;
+	if (!local->use_chanctx) {
+		local->_oper_chandef = local->csa_chandef;
+		/* Call "hw_config" only if doing sw channel switch.
+		 * Otherwise update the channel directly
+		 */
+		if (!local->ops->channel_switch)
+			ieee80211_hw_config(local, 0);
+		else
+			local->hw.conf.chandef = local->_oper_chandef;
 	}
 
 	/* XXX: shouldn't really modify cfg80211-owned data! */
-	ifmgd->associated->channel = local->_oper_chandef.chan;
+	ifmgd->associated->channel = local->csa_chandef.chan;
 
 	/* XXX: wait for a beacon first? */
 	ieee80211_wake_queues_by_reason(&local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
+
+	ieee80211_bss_info_change_notify(sdata, changed);
+
  out:
+	sdata->vif.csa_active = false;
 	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
 	sdata_unlock(sdata);
 }
···
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct cfg80211_bss *cbss = ifmgd->associated;
-	struct ieee80211_bss *bss;
 	struct ieee80211_chanctx *chanctx;
-	enum ieee80211_band new_band;
-	int new_freq;
-	u8 new_chan_no;
+	enum ieee80211_band current_band;
 	u8 count;
 	u8 mode;
-	struct ieee80211_channel *new_chan;
 	struct cfg80211_chan_def new_chandef = {};
-	struct cfg80211_chan_def new_vht_chandef = {};
-	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
-	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
-	const struct ieee80211_ht_operation *ht_oper;
-	int secondary_channel_offset = -1;
+	int res;
 
 	sdata_assert_lock(sdata);
 
···
 	if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
 		return;
 
-	sec_chan_offs = elems->sec_chan_offs;
-	wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
-	ht_oper = elems->ht_operation;
-
-	if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
-			    IEEE80211_STA_DISABLE_40MHZ)) {
-		sec_chan_offs = NULL;
-		wide_bw_chansw_ie = NULL;
-		/* only used for bandwidth here */
-		ht_oper = NULL;
-	}
-
-	if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
-		wide_bw_chansw_ie = NULL;
-
-	if (elems->ext_chansw_ie) {
-		if (!ieee80211_operating_class_to_band(
-				elems->ext_chansw_ie->new_operating_class,
-				&new_band)) {
-			sdata_info(sdata,
-				   "cannot understand ECSA IE operating class %d, disconnecting\n",
-				   elems->ext_chansw_ie->new_operating_class);
-			ieee80211_queue_work(&local->hw,
-					     &ifmgd->csa_connection_drop_work);
-		}
-		new_chan_no = elems->ext_chansw_ie->new_ch_num;
-		count = elems->ext_chansw_ie->count;
-		mode = elems->ext_chansw_ie->mode;
-	} else if (elems->ch_switch_ie) {
-		new_band = cbss->channel->band;
-		new_chan_no = elems->ch_switch_ie->new_ch_num;
-		count = elems->ch_switch_ie->count;
-		mode = elems->ch_switch_ie->mode;
-	} else {
-		/* nothing here we understand */
-		return;
-	}
-
-	bss = (void *)cbss->priv;
-
-	new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
-	new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
-	if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
-		sdata_info(sdata,
-			   "AP %pM switches to unsupported channel (%d MHz), disconnecting\n",
-			   ifmgd->associated->bssid, new_freq);
+	current_band = cbss->channel->band;
+	res = ieee80211_parse_ch_switch_ie(sdata, elems, beacon, current_band,
+					   ifmgd->flags,
+					   ifmgd->associated->bssid, &count,
+					   &mode, &new_chandef);
+	if (res	< 0)
 		ieee80211_queue_work(&local->hw,
 				     &ifmgd->csa_connection_drop_work);
+	if (res)
 		return;
-	}
-
-	if (!beacon && sec_chan_offs) {
-		secondary_channel_offset = sec_chan_offs->sec_chan_offs;
-	} else if (beacon && ht_oper) {
-		secondary_channel_offset =
-			ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
-	} else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
-		/*
-		 * If it's not a beacon, HT is enabled and the IE not present,
-		 * it's 20 MHz, 802.11-2012 8.5.2.6:
-		 *	This element [the Secondary Channel Offset Element] is
-		 *	present when switching to a 40 MHz channel. It may be
-		 *	present when switching to a 20 MHz channel (in which
-		 *	case the secondary channel offset is set to SCN).
-		 */
-		secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-	}
-
-	switch (secondary_channel_offset) {
-	default:
-		/* secondary_channel_offset was present but is invalid */
-	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_HT20);
-		break;
-	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_HT40PLUS);
-		break;
-	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_HT40MINUS);
-		break;
-	case -1:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_NO_HT);
-		/* keep width for 5/10 MHz channels */
-		switch (sdata->vif.bss_conf.chandef.width) {
-		case NL80211_CHAN_WIDTH_5:
-		case NL80211_CHAN_WIDTH_10:
-			new_chandef.width = sdata->vif.bss_conf.chandef.width;
-			break;
-		default:
-			break;
-		}
-		break;
-	}
-
-	if (wide_bw_chansw_ie) {
-		new_vht_chandef.chan = new_chan;
-		new_vht_chandef.center_freq1 =
-			ieee80211_channel_to_frequency(
-				wide_bw_chansw_ie->new_center_freq_seg0,
-				new_band);
-
-		switch (wide_bw_chansw_ie->new_channel_width) {
-		default:
-			/* hmmm, ignore VHT and use HT if present */
-		case IEEE80211_VHT_CHANWIDTH_USE_HT:
-			new_vht_chandef.chan = NULL;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_80MHZ:
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_160MHZ:
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-			/* field is otherwise reserved */
-			new_vht_chandef.center_freq2 =
-				ieee80211_channel_to_frequency(
-					wide_bw_chansw_ie->new_center_freq_seg1,
-					new_band);
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
-			break;
-		}
-		if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
-		    new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
-			chandef_downgrade(&new_vht_chandef);
-		if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
-		    new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
-			chandef_downgrade(&new_vht_chandef);
-		if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
-		    new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
-			chandef_downgrade(&new_vht_chandef);
-	}
-
-	/* if VHT data is there validate & use it */
-	if (new_vht_chandef.chan) {
-		if (!cfg80211_chandef_compatible(&new_vht_chandef,
-						 &new_chandef)) {
-			sdata_info(sdata,
-				   "AP %pM CSA has inconsistent channel data, disconnecting\n",
-				   ifmgd->associated->bssid);
-			ieee80211_queue_work(&local->hw,
-					     &ifmgd->csa_connection_drop_work);
-			return;
-		}
-		new_chandef = new_vht_chandef;
-	}
 
 	if (!cfg80211_chandef_usable(local->hw.wiphy, &new_chandef,
 				     IEEE80211_CHAN_DISABLED)) {
 		sdata_info(sdata,
 			   "AP %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
-			   ifmgd->associated->bssid, new_freq,
+			   ifmgd->associated->bssid,
+			   new_chandef.chan->center_freq,
 			   new_chandef.width, new_chandef.center_freq1,
 			   new_chandef.center_freq2);
 		ieee80211_queue_work(&local->hw,
···
 	}
 
 	ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
-
-	if (local->use_chanctx) {
-		sdata_info(sdata,
-			   "not handling channel switch with channel contexts\n");
-		ieee80211_queue_work(&local->hw,
-				     &ifmgd->csa_connection_drop_work);
-		return;
-	}
+	sdata->vif.csa_active = true;
 
 	mutex_lock(&local->chanctx_mtx);
+	if (local->use_chanctx) {
+		u32 num_chanctx = 0;
+		list_for_each_entry(chanctx, &local->chanctx_list, list)
+		       num_chanctx++;
+
+		if (num_chanctx > 1 ||
+		    !(local->hw.flags & IEEE80211_HW_CHANCTX_STA_CSA)) {
+			sdata_info(sdata,
+				   "not handling chan-switch with channel contexts\n");
+			ieee80211_queue_work(&local->hw,
+					     &ifmgd->csa_connection_drop_work);
+			mutex_unlock(&local->chanctx_mtx);
+			return;
+		}
+	}
+
 	if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) {
+		ieee80211_queue_work(&local->hw,
+				     &ifmgd->csa_connection_drop_work);
 		mutex_unlock(&local->chanctx_mtx);
 		return;
 	}
···
 	if (!mgd->associated)
 		return false;
 
-	if (mgd->flags & (IEEE80211_STA_BEACON_POLL |
-			  IEEE80211_STA_CONNECTION_POLL))
+	if (mgd->flags & IEEE80211_STA_CONNECTION_POLL)
 		return false;
 
 	if (!mgd->have_beacon)
···
 {
 	lockdep_assert_held(&sdata->local->mtx);
 
-	sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
-				IEEE80211_STA_BEACON_POLL);
+	sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL;
 	ieee80211_run_deferred_scan(sdata->local);
 }
 
···
 	struct ieee80211_local *local = sdata->local;
 
 	mutex_lock(&local->mtx);
-	if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			      IEEE80211_STA_CONNECTION_POLL))) {
-		mutex_unlock(&local->mtx);
-		return;
-	}
+	if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL))
+		goto out;
 
 	__ieee80211_stop_poll(sdata);
 
···
 	 * because otherwise we would reset the timer every time and
 	 * never check whether we received a probe response!
 	 */
-	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL))
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)
 		already = true;
-
-	if (beacon)
-		ifmgd->flags |= IEEE80211_STA_BEACON_POLL;
-	else
-		ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL;
 
 	mutex_unlock(&sdata->local->mtx);
 
···
 			       WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
 			       true, frame_buf);
 	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+	sdata->vif.csa_active = false;
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
···
 		}
 	}
 
-	if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) {
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) {
 		mlme_dbg_ratelimited(sdata,
 				     "cancelling AP probe due to a received beacon\n");
-		mutex_lock(&local->mtx);
-		ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
-		ieee80211_run_deferred_scan(local);
-		mutex_unlock(&local->mtx);
-
-		mutex_lock(&local->iflist_mtx);
-		ieee80211_recalc_ps(local, -1);
-		mutex_unlock(&local->iflist_mtx);
+		ieee80211_reset_ap_probe(sdata);
 	}
 
 	/*
···
 	} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
 		run_again(sdata, ifmgd->assoc_data->timeout);
 
-	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL) &&
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL &&
 	    ifmgd->associated) {
 		u8 bssid[ETH_ALEN];
 		int max_tries;
···
 		return ret;
 
 	while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
-		ifmgd->flags |= chandef_downgrade(&chandef);
+		ifmgd->flags |= ieee80211_chandef_downgrade(&chandef);
 		ret = ieee80211_vif_use_channel(sdata, &chandef,
 						IEEE80211_CHANCTX_SHARED);
 	}

net/mac80211/rc80211_minstrel.c

···
 	memcpy(mi->max_tp_rate, tmp_tp_rate, sizeof(mi->max_tp_rate));
 	mi->max_prob_rate = tmp_prob_rate;
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	/* use fixed index if set */
+	if (mp->fixed_rate_idx != -1) {
+		mi->max_tp_rate[0] = mp->fixed_rate_idx;
+		mi->max_tp_rate[1] = mp->fixed_rate_idx;
+		mi->max_prob_rate = mp->fixed_rate_idx;
+	}
+#endif
+
 	/* Reset update timer */
 	mi->stats_update = jiffies;
 
···
 
 	/* increase sum packet counter */
 	mi->packet_count++;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+	if (mp->fixed_rate_idx != -1)
+		return;
+#endif
 
 	delta = (mi->packet_count * sampling_ratio / 100) -
 			(mi->sample_count + mi->sample_deferred / 2);

net/mac80211/rc80211_minstrel_ht.c

···
 		}
 	}
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	/* use fixed index if set */
+	if (mp->fixed_rate_idx != -1) {
+		mi->max_tp_rate = mp->fixed_rate_idx;
+		mi->max_tp_rate2 = mp->fixed_rate_idx;
+		mi->max_prob_rate = mp->fixed_rate_idx;
+	}
+#endif
 
 	mi->stats_update = jiffies;
 }
···
 	info->flags |= mi->tx_flags;
 	minstrel_ht_check_cck_shortpreamble(mp, mi, txrc->short_preamble);
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	if (mp->fixed_rate_idx != -1)
+		return;
+#endif
+
 	/* Don't use EAPOL frames for sampling on non-mrr hw */
 	if (mp->hw->max_rates == 1 &&
 	    (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
 		sample_idx = -1;
 	else
 		sample_idx = minstrel_get_sample_rate(mp, mi);
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-	/* use fixed index if set */
-	if (mp->fixed_rate_idx != -1) {
-		mi->max_tp_rate = mp->fixed_rate_idx;
-		mi->max_tp_rate2 = mp->fixed_rate_idx;
-		mi->max_prob_rate = mp->fixed_rate_idx;
-		sample_idx = -1;
-	}
-#endif
 
 	mi->total_packets++;
 

net/mac80211/rc80211_pid_debugfs.c

···
 	 * provide large enough buffers. */
 	length = length < RC_PID_PRINT_BUF_SIZE ?
 		 length : RC_PID_PRINT_BUF_SIZE;
-	p = snprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
+	p = scnprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
 	switch (ev->type) {
 	case RC_PID_EVENT_TYPE_TX_STATUS:
-		p += snprintf(pb + p, length - p, "tx_status %u %u",
-			      !(ev->data.flags & IEEE80211_TX_STAT_ACK),
-			      ev->data.tx_status.status.rates[0].idx);
+		p += scnprintf(pb + p, length - p, "tx_status %u %u",
+			       !(ev->data.flags & IEEE80211_TX_STAT_ACK),
+			       ev->data.tx_status.status.rates[0].idx);
 		break;
 	case RC_PID_EVENT_TYPE_RATE_CHANGE:
-		p += snprintf(pb + p, length - p, "rate_change %d %d",
-			      ev->data.index, ev->data.rate);
+		p += scnprintf(pb + p, length - p, "rate_change %d %d",
+			       ev->data.index, ev->data.rate);
 		break;
 	case RC_PID_EVENT_TYPE_TX_RATE:
-		p += snprintf(pb + p, length - p, "tx_rate %d %d",
-			      ev->data.index, ev->data.rate);
+		p += scnprintf(pb + p, length - p, "tx_rate %d %d",
+			       ev->data.index, ev->data.rate);
 		break;
 	case RC_PID_EVENT_TYPE_PF_SAMPLE:
-		p += snprintf(pb + p, length - p,
-			      "pf_sample %d %d %d %d",
-			      ev->data.pf_sample, ev->data.prop_err,
-			      ev->data.int_err, ev->data.der_err);
+		p += scnprintf(pb + p, length - p,
+			       "pf_sample %d %d %d %d",
+			       ev->data.pf_sample, ev->data.prop_err,
+			       ev->data.int_err, ev->data.der_err);
 		break;
 	}
-	p += snprintf(pb + p, length - p, "\n");
+	p += scnprintf(pb + p, length - p, "\n");
 
 	spin_unlock_irqrestore(&events->lock, status);
 

net/mac80211/rx.c

···
 				rx->sta->num_duplicates++;
 			}
 			return RX_DROP_UNUSABLE;
-		} else
+		} else if (!(status->flag & RX_FLAG_AMSDU_MORE)) {
 			rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl;
+		}
 	}
 
 	if (unlikely(rx->skb->len < 16)) {
···
 		return RX_DROP_UNUSABLE;
 
 	if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
-	    mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED)
+	    mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED &&
+	    mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT)
 		return RX_DROP_UNUSABLE;
 
 	if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
···
 
 		goto queue;
 	case WLAN_CATEGORY_SPECTRUM_MGMT:
-		if (status->band != IEEE80211_BAND_5GHZ)
-			break;
-
-		if (sdata->vif.type != NL80211_IFTYPE_STATION)
-			break;
-
 		/* verify action_code is present */
 		if (len < IEEE80211_MIN_ACTION_SIZE + 1)
 			break;
 
 		switch (mgmt->u.action.u.measurement.action_code) {
 		case WLAN_ACTION_SPCT_MSR_REQ:
+			if (status->band != IEEE80211_BAND_5GHZ)
+				break;
+
 			if (len < (IEEE80211_MIN_ACTION_SIZE +
 				   sizeof(mgmt->u.action.u.measurement)))
 				break;
-			ieee80211_process_measurement_req(sdata, mgmt, len);
-			goto handled;
-		case WLAN_ACTION_SPCT_CHL_SWITCH:
+
 			if (sdata->vif.type != NL80211_IFTYPE_STATION)
 				break;
 
-			if (!ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid))
+			ieee80211_process_measurement_req(sdata, mgmt, len);
+			goto handled;
+		case WLAN_ACTION_SPCT_CHL_SWITCH: {
+			u8 *bssid;
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.chan_switch)))
+				break;
+
+			if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+			    sdata->vif.type != NL80211_IFTYPE_ADHOC)
+				break;
+
+			if (sdata->vif.type == NL80211_IFTYPE_STATION)
+				bssid = sdata->u.mgd.bssid;
+			else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+				bssid = sdata->u.ibss.bssid;
+			else
+				break;
+
+			if (!ether_addr_equal(mgmt->bssid, bssid))
 				break;
 
 			goto queue;
+			}
 		}
 		break;
 	case WLAN_CATEGORY_SA_QUERY:

net/mac80211/scan.c

···
 		return false;
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
-	    sdata->u.mgd.flags & (IEEE80211_STA_BEACON_POLL |
-				  IEEE80211_STA_CONNECTION_POLL))
+	    sdata->u.mgd.flags & IEEE80211_STA_CONNECTION_POLL)
 		return false;
 
 	return true;

net/mac80211/spectmgmt.c

···
 #include "sta_info.h"
 #include "wme.h"
 
+int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
+				 struct ieee802_11_elems *elems, bool beacon,
+				 enum ieee80211_band current_band,
+				 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
+				 struct cfg80211_chan_def *new_chandef)
+{
+	enum ieee80211_band new_band;
+	int new_freq;
+	u8 new_chan_no;
+	struct ieee80211_channel *new_chan;
+	struct cfg80211_chan_def new_vht_chandef = {};
+	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
+	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
+	const struct ieee80211_ht_operation *ht_oper;
+	int secondary_channel_offset = -1;
+
+	sec_chan_offs = elems->sec_chan_offs;
+	wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
+	ht_oper = elems->ht_operation;
+
+	if (sta_flags & (IEEE80211_STA_DISABLE_HT |
+			 IEEE80211_STA_DISABLE_40MHZ)) {
+		sec_chan_offs = NULL;
+		wide_bw_chansw_ie = NULL;
+		/* only used for bandwidth here */
+		ht_oper = NULL;
+	}
+
+	if (sta_flags & IEEE80211_STA_DISABLE_VHT)
+		wide_bw_chansw_ie = NULL;
+
+	if (elems->ext_chansw_ie) {
+		if (!ieee80211_operating_class_to_band(
+				elems->ext_chansw_ie->new_operating_class,
+				&new_band)) {
+			sdata_info(sdata,
+				   "cannot understand ECSA IE operating class %d, disconnecting\n",
+				   elems->ext_chansw_ie->new_operating_class);
+			return -EINVAL;
+		}
+		new_chan_no = elems->ext_chansw_ie->new_ch_num;
+		*count = elems->ext_chansw_ie->count;
+		*mode = elems->ext_chansw_ie->mode;
+	} else if (elems->ch_switch_ie) {
+		new_band = current_band;
+		new_chan_no = elems->ch_switch_ie->new_ch_num;
+		*count = elems->ch_switch_ie->count;
+		*mode = elems->ch_switch_ie->mode;
+	} else {
+		/* nothing here we understand */
+		return 1;
+	}
+
+	new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
+	new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+	if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
+		sdata_info(sdata,
+			   "BSS %pM switches to unsupported channel (%d MHz), disconnecting\n",
+			   bssid, new_freq);
+		return -EINVAL;
+	}
+
+	if (!beacon && sec_chan_offs) {
+		secondary_channel_offset = sec_chan_offs->sec_chan_offs;
+	} else if (beacon && ht_oper) {
+		secondary_channel_offset =
+			ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+	} else if (!(sta_flags & IEEE80211_STA_DISABLE_HT)) {
+		/* If it's not a beacon, HT is enabled and the IE not present,
+		 * it's 20 MHz, 802.11-2012 8.5.2.6:
+		 *	This element [the Secondary Channel Offset Element] is
+		 *	present when switching to a 40 MHz channel. It may be
+		 *	present when switching to a 20 MHz channel (in which
+		 *	case the secondary channel offset is set to SCN).
+		 */
+		secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+	}
+
+	switch (secondary_channel_offset) {
+	default:
+		/* secondary_channel_offset was present but is invalid */
+	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_HT20);
+		break;
+	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_HT40PLUS);
+		break;
+	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_HT40MINUS);
+		break;
+	case -1:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_NO_HT);
+		/* keep width for 5/10 MHz channels */
+		switch (sdata->vif.bss_conf.chandef.width) {
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
+			new_chandef->width = sdata->vif.bss_conf.chandef.width;
+			break;
+		default:
+			break;
+		}
+		break;
+	}
+
+	if (wide_bw_chansw_ie) {
+		new_vht_chandef.chan = new_chan;
+		new_vht_chandef.center_freq1 =
+			ieee80211_channel_to_frequency(
+				wide_bw_chansw_ie->new_center_freq_seg0,
+				new_band);
+
+		switch (wide_bw_chansw_ie->new_channel_width) {
+		default:
+			/* hmmm, ignore VHT and use HT if present */
+		case IEEE80211_VHT_CHANWIDTH_USE_HT:
+			new_vht_chandef.chan = NULL;
+			break;
+		case IEEE80211_VHT_CHANWIDTH_80MHZ:
+			new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
+			break;
+		case IEEE80211_VHT_CHANWIDTH_160MHZ:
+			new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
+			break;
+		case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
+			/* field is otherwise reserved */
+			new_vht_chandef.center_freq2 =
+				ieee80211_channel_to_frequency(
+					wide_bw_chansw_ie->new_center_freq_seg1,
+					new_band);
+			new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
+			break;
+		}
+		if (sta_flags & IEEE80211_STA_DISABLE_80P80MHZ &&
+		    new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
+			ieee80211_chandef_downgrade(&new_vht_chandef);
+		if (sta_flags & IEEE80211_STA_DISABLE_160MHZ &&
+		    new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
+			ieee80211_chandef_downgrade(&new_vht_chandef);
+		if (sta_flags & IEEE80211_STA_DISABLE_40MHZ &&
+		    new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
+			ieee80211_chandef_downgrade(&new_vht_chandef);
+	}
+
+	/* if VHT data is there validate & use it */
+	if (new_vht_chandef.chan) {
+		if (!cfg80211_chandef_compatible(&new_vht_chandef,
+						 new_chandef)) {
+			sdata_info(sdata,
+				   "BSS %pM: CSA has inconsistent channel data, disconnecting\n",
+				   bssid);
+			return -EINVAL;
+		}
+		*new_chandef = new_vht_chandef;
+	}
+
+	return 0;
+}
+
 static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
 					struct ieee80211_msrment_ie *request_ie,
 					const u8 *da, const u8 *bssid,

net/mac80211/trace.h

···
 );
 #endif
 
+TRACE_EVENT(drv_join_ibss,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_bss_conf *info),
+
+	TP_ARGS(local, sdata, info),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		__field(u8, dtimper)
+		__field(u16, bcnint)
+		__dynamic_array(u8, ssid, info->ssid_len);
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		__entry->dtimper = info->dtim_period;
+		__entry->bcnint = info->beacon_int;
+		memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT,
+		LOCAL_PR_ARG, VIF_PR_ARG
+	)
+);
+
+DEFINE_EVENT(local_sdata_evt, drv_leave_ibss,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata),
+	TP_ARGS(local, sdata)
+);
+
 /*
  * Tracing for API calls that drivers call.
  */

net/mac80211/tx.c

···
 	 * EAPOL frames from the local station.
 	 */
 	if (unlikely(!ieee80211_vif_is_mesh(&sdata->vif) &&
-		     !is_multicast_ether_addr(hdr.addr1) && !authorized &&
+		     !multicast && !authorized &&
 		     (cpu_to_be16(ethertype) != sdata->control_port_protocol ||
 		      !ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
···
 	struct probe_resp *resp;
 	int counter_offset_beacon = sdata->csa_counter_offset_beacon;
 	int counter_offset_presp = sdata->csa_counter_offset_presp;
+	u8 *beacon_data;
+	size_t beacon_data_len;
 
-	/* warn if the driver did not check for/react to csa completeness */
-	if (WARN_ON(((u8 *)beacon->tail)[counter_offset_beacon] == 0))
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+		beacon_data = beacon->tail;
+		beacon_data_len = beacon->tail_len;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		beacon_data = beacon->head;
+		beacon_data_len = beacon->head_len;
+		break;
+	default:
+		return;
+	}
+	if (WARN_ON(counter_offset_beacon >= beacon_data_len))
 		return;
 
-	((u8 *)beacon->tail)[counter_offset_beacon]--;
+	/* warn if the driver did not check for/react to csa completeness */
+	if (WARN_ON(beacon_data[counter_offset_beacon] == 0))
+		return;
 
-	if (sdata->vif.type == NL80211_IFTYPE_AP &&
-	    counter_offset_presp) {
+	beacon_data[counter_offset_beacon]--;
+
+	if (sdata->vif.type == NL80211_IFTYPE_AP && counter_offset_presp) {
 		rcu_read_lock();
 		resp = rcu_dereference(sdata->u.ap.probe_resp);
 
···
 			goto out;
 		beacon_data = beacon->tail;
 		beacon_data_len = beacon->tail_len;
+	} else if (vif->type == NL80211_IFTYPE_ADHOC) {
+		struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+		beacon = rcu_dereference(ifibss->presp);
+		if (!beacon)
+			goto out;
+
+		beacon_data = beacon->head;
+		beacon_data_len = beacon->head_len;
 	} else {
 		WARN_ON(1);
 		goto out;
···
 
 		if (!presp)
 			goto out;
+
+		if (sdata->vif.csa_active)
+			ieee80211_update_csa(sdata, presp);
+
 
 		skb = dev_alloc_skb(local->tx_headroom + presp->head_len);
 		if (!skb)

net/mac80211/util.c

···
 					IEEE80211_QUEUE_STOP_REASON_FLUSH);
 }
 
-void ieee80211_iterate_active_interfaces(
-	struct ieee80211_hw *hw, u32 iter_flags,
-	void (*iterator)(void *data, u8 *mac,
-			 struct ieee80211_vif *vif),
-	void *data)
+static void __iterate_active_interfaces(struct ieee80211_local *local,
+					u32 iter_flags,
+					void (*iterator)(void *data, u8 *mac,
+						struct ieee80211_vif *vif),
+					void *data)
 {
-	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
-
-	mutex_lock(&local->iflist_mtx);
-
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		switch (sdata->vif.type) {
-		case NL80211_IFTYPE_MONITOR:
-			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
-				continue;
-			break;
-		case NL80211_IFTYPE_AP_VLAN:
-			continue;
-		default:
-			break;
-		}
-		if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
-		    !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
-			continue;
-		if (ieee80211_sdata_running(sdata))
-			iterator(data, sdata->vif.addr,
-				 &sdata->vif);
-	}
-
-	sdata = rcu_dereference_protected(local->monitor_sdata,
-					  lockdep_is_held(&local->iflist_mtx));
-	if (sdata &&
-	    (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
-	     sdata->flags & IEEE80211_SDATA_IN_DRIVER))
-		iterator(data, sdata->vif.addr, &sdata->vif);
-
-	mutex_unlock(&local->iflist_mtx);
-}
-EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
-
-void ieee80211_iterate_active_interfaces_atomic(
-	struct ieee80211_hw *hw, u32 iter_flags,
-	void (*iterator)(void *data, u8 *mac,
-			 struct ieee80211_vif *vif),
-	void *data)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_sub_if_data *sdata;
-
-	rcu_read_lock();
 
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
···
 				 &sdata->vif);
 	}
 
-	sdata = rcu_dereference(local->monitor_sdata);
+	sdata = rcu_dereference_check(local->monitor_sdata,
+				      lockdep_is_held(&local->iflist_mtx) ||
+				      lockdep_rtnl_is_held());
 	if (sdata &&
 	    (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
 	     sdata->flags & IEEE80211_SDATA_IN_DRIVER))
 		iterator(data, sdata->vif.addr, &sdata->vif);
+}
 
+void ieee80211_iterate_active_interfaces(
+	struct ieee80211_hw *hw, u32 iter_flags,
+	void (*iterator)(void *data, u8 *mac,
+			 struct ieee80211_vif *vif),
+	void *data)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	mutex_lock(&local->iflist_mtx);
+	__iterate_active_interfaces(local, iter_flags, iterator, data);
+	mutex_unlock(&local->iflist_mtx);
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+
+void ieee80211_iterate_active_interfaces_atomic(
+	struct ieee80211_hw *hw, u32 iter_flags,
+	void (*iterator)(void *data, u8 *mac,
+			 struct ieee80211_vif *vif),
+	void *data)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	rcu_read_lock();
+	__iterate_active_interfaces(local, iter_flags, iterator, data);
 	rcu_read_unlock();
 }
 EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
+
+void ieee80211_iterate_active_interfaces_rtnl(
+	struct ieee80211_hw *hw, u32 iter_flags,
+	void (*iterator)(void *data, u8 *mac,
+			 struct ieee80211_vif *vif),
+	void *data)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	ASSERT_RTNL();
+
+	__iterate_active_interfaces(local, iter_flags, iterator, data);
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_rtnl);
 
 /*
  * Nothing should have been stuffed into the workqueue during
···
 	 */
 	enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION);
 
-	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
-		/* Set defaults according to 802.11-2007 Table 7-37 */
-		aCWmax = 1023;
-		if (use_11b)
-			aCWmin = 31;
-		else
-			aCWmin = 15;
+	/* Set defaults according to 802.11-2007 Table 7-37 */
+	aCWmax = 1023;
+	if (use_11b)
+		aCWmin = 31;
+	else
+		aCWmin = 15;
 
+	/* Confiure old 802.11b/g medium access rules. */
+	qparam.cw_max = aCWmax;
+	qparam.cw_min = aCWmin;
+	qparam.txop = 0;
+	qparam.aifs = 2;
+
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		/* Update if QoS is enabled. */
 		if (enable_qos) {
 			switch (ac) {
 			case IEEE80211_AC_BK:
···
 				qparam.aifs = 2;
 				break;
 			}
-		} else {
-			/* Confiure old 802.11b/g medium access rules. */
-			qparam.cw_max = aCWmax;
-			qparam.cw_min = aCWmin;
-			qparam.txop = 0;
-			qparam.aifs = 2;
 		}
 
 		qparam.uapsd = false;
···
 	struct ieee80211_mgmt *mgmt;
 	int err;
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 6 + extra_len);
+	/* 24 + 6 = header + auth_algo + auth_transaction + status_code */
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 6 + extra_len);
 	if (!skb)
 		return;
 
···
 	ieee80211_queue_work(hw, &local->radar_detected_work);
 }
 EXPORT_SYMBOL(ieee80211_radar_detected);
+
+u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c)
+{
+	u32 ret;
+	int tmp;
+
+	switch (c->width) {
+	case NL80211_CHAN_WIDTH_20:
+		c->width = NL80211_CHAN_WIDTH_20_NOHT;
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_40:
+		c->width = NL80211_CHAN_WIDTH_20;
+		c->center_freq1 = c->chan->center_freq;
+		ret = IEEE80211_STA_DISABLE_40MHZ |
+		      IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P40 */
+		tmp /= 2;
+		/* freq_P40 */
+		c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
+		c->width = NL80211_CHAN_WIDTH_40;
+		ret = IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_80P80:
+		c->center_freq2 = 0;
+		c->width = NL80211_CHAN_WIDTH_80;
+		ret = IEEE80211_STA_DISABLE_80P80MHZ |
+		      IEEE80211_STA_DISABLE_160MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		/* n_P20 */
+		tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P80 */
+		tmp /= 4;
+		c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
+		c->width = NL80211_CHAN_WIDTH_80;
+		ret = IEEE80211_STA_DISABLE_80P80MHZ |
+		      IEEE80211_STA_DISABLE_160MHZ;
+		break;
+	default:
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		WARN_ON_ONCE(1);
+		c->width = NL80211_CHAN_WIDTH_20_NOHT;
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+		WARN_ON_ONCE(1);
+		/* keep c->width */
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	}
+
+	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
+
+	return ret;
+}

net/mac80211/vht.c

···
 	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {
 		vht_cap->cap |= cap_info &
 				(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
-				 IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX |
 				 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX);
 	}
 
 	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
 		vht_cap->cap |= cap_info &
-				IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
+				(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+				 IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX);
 
 	if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
 		vht_cap->cap |= cap_info &

net/wireless/chan.c

···
 	return cfg80211_get_chans_dfs_required(wiphy, chandef->center_freq2,
 					       width);
 }
+EXPORT_SYMBOL(cfg80211_chandef_dfs_required);
 
 static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
 					u32 center_freq, u32 bandwidth,

net/wireless/core.h

···
 				 enum cfg80211_chan_mode chanmode,
 				 u8 radar_detect);
 
-/**
- * cfg80211_chandef_dfs_required - checks if radar detection is required
- * @wiphy: the wiphy to validate against
- * @chandef: the channel definition to check
- * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
- */
-int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
-				  const struct cfg80211_chan_def *c);
-
 void cfg80211_set_dfs_state(struct wiphy *wiphy,
 			    const struct cfg80211_chan_def *chandef,
 			    enum nl80211_dfs_state dfs_state);

net/wireless/debugfs.c

···
 		return 0;
 
 	if (chan->flags & IEEE80211_CHAN_DISABLED)
-		return snprintf(buf + offset,
-				buf_size - offset,
-				"%d Disabled\n",
-				chan->center_freq);
+		return scnprintf(buf + offset,
+				 buf_size - offset,
+				 "%d Disabled\n",
+				 chan->center_freq);
 
-	return snprintf(buf + offset,
-			buf_size - offset,
-			"%d HT40 %c%c\n",
-			chan->center_freq,
-			(chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ? ' ' : '-',
-			(chan->flags & IEEE80211_CHAN_NO_HT40PLUS)  ? ' ' : '+');
+	return scnprintf(buf + offset,
+			 buf_size - offset,
+			 "%d HT40 %c%c\n",
+			 chan->center_freq,
+			 (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ?
+				' ' : '-',
+			 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ?
+				' ' : '+');
 }
 
 static ssize_t ht40allow_map_read(struct file *file,

net/wireless/genregdb.awk

···
 	sub(/:/, "", country)
 	printf "static const struct ieee80211_regdomain regdom_%s = {\n", country
 	printf "\t.alpha2 = \"%s\",\n", country
+	if ($NF ~ /DFS-ETSI/)
+		printf "\t.dfs_region = NL80211_DFS_ETSI,\n"
+	else if ($NF ~ /DFS-FCC/)
+		printf "\t.dfs_region = NL80211_DFS_FCC,\n"
+	else if ($NF ~ /DFS-JP/)
+		printf "\t.dfs_region = NL80211_DFS_JP,\n"
 	printf "\t.reg_rules = {\n"
 	active = 1
 	regdb = regdb "\t&regdom_" country ",\n"

net/wireless/nl80211.c

···
 	if (err)
 		return err;
 
+	if (netif_carrier_ok(dev))
+		return -EBUSY;
+
 	if (wdev->cac_started)
 		return -EBUSY;
 
···
 	static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
 	u8 radar_detect_width = 0;
 	int err;
+	bool need_new_beacon = false;
 
 	if (!rdev->ops->channel_switch ||
 	    !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
 		return -EOPNOTSUPP;
 
-	/* may add IBSS support later */
-	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
-	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+	switch (dev->ieee80211_ptr->iftype) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_P2P_GO:
+		need_new_beacon = true;
+
+		/* useless if AP is not running */
+		if (!wdev->beacon_interval)
+			return -EINVAL;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		break;
+	default:
 		return -EOPNOTSUPP;
+	}
 
 	memset(&params, 0, sizeof(params));
 
···
 		return -EINVAL;
 
 	/* only important for AP, IBSS and mesh create IEs internally */
-	if (!info->attrs[NL80211_ATTR_CSA_IES])
-		return -EINVAL;
-
-	/* useless if AP is not running */
-	if (!wdev->beacon_interval)
+	if (need_new_beacon &&
+	    (!info->attrs[NL80211_ATTR_CSA_IES] ||
+	     !info->attrs[NL80211_ATTR_CSA_C_OFF_BEACON]))
 		return -EINVAL;
 
 	params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
+
+	if (!need_new_beacon)
+		goto skip_beacons;
 
 	err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
 	if (err)
···
 			return -EINVAL;
 	}
 
+skip_beacons:
 	err = nl80211_parse_chandef(rdev, info, &params.chandef);
 	if (err)
 		return err;
···
 	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
 		return -EINVAL;
 
-	err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
-	if (err < 0) {
-		return err;
-	} else if (err) {
-		radar_detect_width = BIT(params.chandef.width);
-		params.radar_required = true;
+	/* DFS channels are only supported for AP/P2P GO ... for now. */
+	if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
+	    dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO) {
+		err = cfg80211_chandef_dfs_required(wdev->wiphy,
+						    &params.chandef);
+		if (err < 0) {
+			return err;
+		} else if (err) {
+			radar_detect_width = BIT(params.chandef.width);
+			params.radar_required = true;
+		}
 	}
 
 	err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
···
 	wdev_lock(wdev);
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_GO))
+		    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
+		    wdev->iftype != NL80211_IFTYPE_ADHOC))
 		goto out;
 
 	wdev->channel = chandef->chan;

net/wireless/reg.c

···
 			NL80211_RRF_NO_IBSS |
 			NL80211_RRF_NO_OFDM),
 		/* IEEE 802.11a, channel 36..48 */
-		REG_RULE(5180-10, 5240+10, 80, 6, 20,
+		REG_RULE(5180-10, 5240+10, 160, 6, 20,
                         NL80211_RRF_PASSIVE_SCAN |
                         NL80211_RRF_NO_IBSS),
 
-		/* NB: 5260 MHz - 5700 MHz requires DFS */
+		/* IEEE 802.11a, channel 52..64 - DFS required */
+		REG_RULE(5260-10, 5320+10, 160, 6, 20,
+			NL80211_RRF_PASSIVE_SCAN |
+			NL80211_RRF_NO_IBSS |
+			NL80211_RRF_DFS),
+
+		/* IEEE 802.11a, channel 100..144 - DFS required */
+		REG_RULE(5500-10, 5720+10, 160, 6, 20,
+			NL80211_RRF_PASSIVE_SCAN |
+			NL80211_RRF_NO_IBSS |
+			NL80211_RRF_DFS),
 
 		/* IEEE 802.11a, channel 149..165 */
 		REG_RULE(5745-10, 5825+10, 80, 6, 20,

net/wireless/util.c

···
 #include <net/cfg80211.h>
 #include <net/ip.h>
 #include <net/dsfield.h>
+#include <linux/if_vlan.h>
 #include "core.h"
 #include "rdev-ops.h"
 
···
 unsigned int cfg80211_classify8021d(struct sk_buff *skb)
 {
 	unsigned int dscp;
+	unsigned char vlan_priority;
 
 	/* skb->priority values from 256->263 are magic values to
 	 * directly indicate a specific 802.1d priority.  This is used
···
 	 */
 	if (skb->priority >= 256 && skb->priority <= 263)
 		return skb->priority - 256;
+
+	if (vlan_tx_tag_present(skb)) {
+		vlan_priority = (vlan_tx_tag_get(skb) & VLAN_PRIO_MASK)
+			>> VLAN_PRIO_SHIFT;
+		if (vlan_priority > 0)
+			return vlan_priority;
+	}
 
 	switch (skb->protocol) {
 	case htons(ETH_P_IP):