mwifiex: move under marvell vendor directory

Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

50 files changed, 42455 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/Kconfig b/drivers/net/wireless/marvell/Kconfig
index 97ec8f35745e..bbdbac9a2a45 100644
--- a/drivers/net/wireless/marvell/Kconfig
+++ b/drivers/net/wireless/marvell/Kconfig
@@ -13,5 +13,6 @@ if WLAN_VENDOR_MARVELL
 
 source "drivers/net/wireless/marvell/libertas/Kconfig"
 source "drivers/net/wireless/marvell/libertas_tf/Kconfig"
+source "drivers/net/wireless/marvell/mwifiex/Kconfig"
 
 endif # WLAN_VENDOR_MARVELL
diff --git a/drivers/net/wireless/marvell/Makefile b/drivers/net/wireless/marvell/Makefile
index 8f5eb423b71a..f4ab48aaff3c 100644
--- a/drivers/net/wireless/marvell/Makefile
+++ b/drivers/net/wireless/marvell/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_LIBERTAS)		+= libertas/
 
 obj-$(CONFIG_LIBERTAS_THINFIRM)	+= libertas_tf/
+obj-$(CONFIG_MWIFIEX)	+= mwifiex/
diff --git a/drivers/net/wireless/marvell/mwifiex/11ac.c b/drivers/net/wireless/marvell/mwifiex/11ac.c
new file mode 100644
index 000000000000..59d23fb2365f
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/11ac.c
@@ -0,0 +1,382 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11ac
+ *
+ * Copyright (C) 2013-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "fw.h"
+#include "main.h"
+#include "11ac.h"
+
+/* Tables of the MCS map to the highest data rate (in Mbps) supported
+ * for long GI.
+ */
+static const u16 max_rate_lgi_80MHZ[8][3] = {
+	{0x124, 0x15F, 0x186},	/* NSS = 1 */
+	{0x249, 0x2BE, 0x30C},  /* NSS = 2 */
+	{0x36D, 0x41D, 0x492},  /* NSS = 3 */
+	{0x492, 0x57C, 0x618},  /* NSS = 4 */
+	{0x5B6, 0x6DB, 0x79E},  /* NSS = 5 */
+	{0x6DB, 0x83A, 0x0},    /* NSS = 6 */
+	{0x7FF, 0x999, 0xAAA},  /* NSS = 7 */
+	{0x924, 0xAF8, 0xC30}   /* NSS = 8 */
+};
+
+static const u16 max_rate_lgi_160MHZ[8][3] = {
+	{0x249, 0x2BE, 0x30C},   /* NSS = 1 */
+	{0x492, 0x57C, 0x618},   /* NSS = 2 */
+	{0x6DB, 0x83A, 0x0},     /* NSS = 3 */
+	{0x924, 0xAF8, 0xC30},   /* NSS = 4 */
+	{0xB6D, 0xDB6, 0xF3C},   /* NSS = 5 */
+	{0xDB6, 0x1074, 0x1248}, /* NSS = 6 */
+	{0xFFF, 0x1332, 0x1554}, /* NSS = 7 */
+	{0x1248, 0x15F0, 0x1860} /* NSS = 8 */
+};
+
+/* This function converts the 2-bit MCS map to the highest long GI
+ * VHT data rate.
+ */
+static u16
+mwifiex_convert_mcsmap_to_maxrate(struct mwifiex_private *priv,
+				  u8 bands, u16 mcs_map)
+{
+	u8 i, nss, mcs;
+	u16 max_rate = 0;
+	u32 usr_vht_cap_info = 0;
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	if (bands & BAND_AAC)
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
+	else
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
+
+	/* find the max NSS supported */
+	nss = 1;
+	for (i = 1; i <= 8; i++) {
+		mcs = GET_VHTNSSMCS(mcs_map, i);
+		if (mcs < IEEE80211_VHT_MCS_NOT_SUPPORTED)
+			nss = i;
+	}
+	mcs = GET_VHTNSSMCS(mcs_map, nss);
+
+	/* if mcs is 3, nss must be 1 (NSS = 1). Default mcs to MCS 0~9 */
+	if (mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED)
+		mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
+
+	if (GET_VHTCAP_CHWDSET(usr_vht_cap_info)) {
+		/* support 160 MHz */
+		max_rate = max_rate_lgi_160MHZ[nss - 1][mcs];
+		if (!max_rate)
+			/* MCS9 is not supported in NSS6 */
+			max_rate = max_rate_lgi_160MHZ[nss - 1][mcs - 1];
+	} else {
+		max_rate = max_rate_lgi_80MHZ[nss - 1][mcs];
+		if (!max_rate)
+			/* MCS9 is not supported in NSS3 */
+			max_rate = max_rate_lgi_80MHZ[nss - 1][mcs - 1];
+	}
+
+	return max_rate;
+}
+
+static void
+mwifiex_fill_vht_cap_info(struct mwifiex_private *priv,
+			  struct ieee80211_vht_cap *vht_cap, u8 bands)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	if (bands & BAND_A)
+		vht_cap->vht_cap_info =
+				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_a);
+	else
+		vht_cap->vht_cap_info =
+				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_bg);
+}
+
+void mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
+			      struct ieee80211_vht_cap *vht_cap, u8 bands)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u16 mcs_map_user, mcs_map_resp, mcs_map_result;
+	u16 mcs_user, mcs_resp, nss, tmp;
+
+	/* Fill VHT cap info */
+	mwifiex_fill_vht_cap_info(priv, vht_cap, bands);
+
+	/* rx MCS Set: find the minimum of the user rx mcs and ap rx mcs */
+	mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
+	mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
+	mcs_map_result = 0;
+
+	for (nss = 1; nss <= 8; nss++) {
+		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
+		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
+
+		if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
+		    (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      IEEE80211_VHT_MCS_NOT_SUPPORTED);
+		else
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      min(mcs_user, mcs_resp));
+	}
+
+	vht_cap->supp_mcs.rx_mcs_map = cpu_to_le16(mcs_map_result);
+
+	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
+	vht_cap->supp_mcs.rx_highest = cpu_to_le16(tmp);
+
+	/* tx MCS Set: find the minimum of the user tx mcs and ap tx mcs */
+	mcs_map_user = GET_DEVTXMCSMAP(adapter->usr_dot_11ac_mcs_support);
+	mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map);
+	mcs_map_result = 0;
+
+	for (nss = 1; nss <= 8; nss++) {
+		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
+		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
+		if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
+		    (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      IEEE80211_VHT_MCS_NOT_SUPPORTED);
+		else
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      min(mcs_user, mcs_resp));
+	}
+
+	vht_cap->supp_mcs.tx_mcs_map = cpu_to_le16(mcs_map_result);
+
+	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
+	vht_cap->supp_mcs.tx_highest = cpu_to_le16(tmp);
+
+	return;
+}
+
+int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
+			     struct mwifiex_bssdescriptor *bss_desc,
+			     u8 **buffer)
+{
+	struct mwifiex_ie_types_vhtcap *vht_cap;
+	struct mwifiex_ie_types_oper_mode_ntf *oper_ntf;
+	struct ieee_types_oper_mode_ntf *ieee_oper_ntf;
+	struct mwifiex_ie_types_vht_oper *vht_op;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u8 supp_chwd_set;
+	u32 usr_vht_cap_info;
+	int ret_len = 0;
+
+	if (bss_desc->bss_band & BAND_A)
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
+	else
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
+
+	/* VHT Capabilities IE */
+	if (bss_desc->bcn_vht_cap) {
+		vht_cap = (struct mwifiex_ie_types_vhtcap *)*buffer;
+		memset(vht_cap, 0, sizeof(*vht_cap));
+		vht_cap->header.type = cpu_to_le16(WLAN_EID_VHT_CAPABILITY);
+		vht_cap->header.len  =
+				cpu_to_le16(sizeof(struct ieee80211_vht_cap));
+		memcpy((u8 *)vht_cap + sizeof(struct mwifiex_ie_types_header),
+		       (u8 *)bss_desc->bcn_vht_cap,
+		       le16_to_cpu(vht_cap->header.len));
+
+		mwifiex_fill_vht_cap_tlv(priv, &vht_cap->vht_cap,
+					 bss_desc->bss_band);
+		*buffer += sizeof(*vht_cap);
+		ret_len += sizeof(*vht_cap);
+	}
+
+	/* VHT Operation IE */
+	if (bss_desc->bcn_vht_oper) {
+		if (priv->bss_mode == NL80211_IFTYPE_STATION) {
+			vht_op = (struct mwifiex_ie_types_vht_oper *)*buffer;
+			memset(vht_op, 0, sizeof(*vht_op));
+			vht_op->header.type =
+					cpu_to_le16(WLAN_EID_VHT_OPERATION);
+			vht_op->header.len  = cpu_to_le16(sizeof(*vht_op) -
+				      sizeof(struct mwifiex_ie_types_header));
+			memcpy((u8 *)vht_op +
+				sizeof(struct mwifiex_ie_types_header),
+			       (u8 *)bss_desc->bcn_vht_oper,
+			       le16_to_cpu(vht_op->header.len));
+
+			/* negotiate the channel width and central freq
+			 * and keep the central freq as the peer suggests
+			 */
+			supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
+
+			switch (supp_chwd_set) {
+			case 0:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_80MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			case 1:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_160MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			case 2:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_80P80MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			default:
+				vht_op->chan_width =
+				     IEEE80211_VHT_CHANWIDTH_USE_HT;
+				break;
+			}
+
+			*buffer += sizeof(*vht_op);
+			ret_len += sizeof(*vht_op);
+		}
+	}
+
+	/* Operating Mode Notification IE */
+	if (bss_desc->oper_mode) {
+		ieee_oper_ntf = bss_desc->oper_mode;
+		oper_ntf = (void *)*buffer;
+		memset(oper_ntf, 0, sizeof(*oper_ntf));
+		oper_ntf->header.type = cpu_to_le16(WLAN_EID_OPMODE_NOTIF);
+		oper_ntf->header.len = cpu_to_le16(sizeof(u8));
+		oper_ntf->oper_mode = ieee_oper_ntf->oper_mode;
+		*buffer += sizeof(*oper_ntf);
+		ret_len += sizeof(*oper_ntf);
+	}
+
+	return ret_len;
+}
+
+int mwifiex_cmd_11ac_cfg(struct mwifiex_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct mwifiex_11ac_vht_cfg *cfg)
+{
+	struct host_cmd_11ac_vht_cfg *vhtcfg = &cmd->params.vht_cfg;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_11AC_CFG);
+	cmd->size = cpu_to_le16(sizeof(struct host_cmd_11ac_vht_cfg) +
+				S_DS_GEN);
+	vhtcfg->action = cpu_to_le16(cmd_action);
+	vhtcfg->band_config = cfg->band_config;
+	vhtcfg->misc_config = cfg->misc_config;
+	vhtcfg->cap_info = cpu_to_le32(cfg->cap_info);
+	vhtcfg->mcs_tx_set = cpu_to_le32(cfg->mcs_tx_set);
+	vhtcfg->mcs_rx_set = cpu_to_le32(cfg->mcs_rx_set);
+
+	return 0;
+}
+
+/* This function initializes the BlockACK setup information for given
+ * mwifiex_private structure for 11ac enabled networks.
+ */
+void mwifiex_set_11ac_ba_params(struct mwifiex_private *priv)
+{
+	priv->add_ba_param.timeout = MWIFIEX_DEFAULT_BLOCK_ACK_TIMEOUT;
+
+	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
+		priv->add_ba_param.tx_win_size =
+					   MWIFIEX_11AC_UAP_AMPDU_DEF_TXWINSIZE;
+		priv->add_ba_param.rx_win_size =
+					   MWIFIEX_11AC_UAP_AMPDU_DEF_RXWINSIZE;
+	} else {
+		priv->add_ba_param.tx_win_size =
+					   MWIFIEX_11AC_STA_AMPDU_DEF_TXWINSIZE;
+		priv->add_ba_param.rx_win_size =
+					   MWIFIEX_11AC_STA_AMPDU_DEF_RXWINSIZE;
+	}
+
+	return;
+}
+
+bool mwifiex_is_bss_in_11ac_mode(struct mwifiex_private *priv)
+{
+	struct mwifiex_bssdescriptor *bss_desc;
+	struct ieee80211_vht_operation *vht_oper;
+
+	bss_desc = &priv->curr_bss_params.bss_descriptor;
+	vht_oper = bss_desc->bcn_vht_oper;
+
+	if (!bss_desc->bcn_vht_cap || !vht_oper)
+		return false;
+
+	if (vht_oper->chan_width == IEEE80211_VHT_CHANWIDTH_USE_HT)
+		return false;
+
+	return true;
+}
+
+u8 mwifiex_get_center_freq_index(struct mwifiex_private *priv, u8 band,
+				 u32 pri_chan, u8 chan_bw)
+{
+	u8 center_freq_idx = 0;
+
+	if (band & BAND_AAC) {
+		switch (pri_chan) {
+		case 36:
+		case 40:
+		case 44:
+		case 48:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 42;
+			break;
+		case 52:
+		case 56:
+		case 60:
+		case 64:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 58;
+			else if (chan_bw == IEEE80211_VHT_CHANWIDTH_160MHZ)
+				center_freq_idx = 50;
+			break;
+		case 100:
+		case 104:
+		case 108:
+		case 112:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 106;
+			break;
+		case 116:
+		case 120:
+		case 124:
+		case 128:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 122;
+			else if (chan_bw == IEEE80211_VHT_CHANWIDTH_160MHZ)
+				center_freq_idx = 114;
+			break;
+		case 132:
+		case 136:
+		case 140:
+		case 144:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 138;
+			break;
+		case 149:
+		case 153:
+		case 157:
+		case 161:
+			if (chan_bw == IEEE80211_VHT_CHANWIDTH_80MHZ)
+				center_freq_idx = 155;
+			break;
+		default:
+			center_freq_idx = 42;
+		}
+	}
+
+	return center_freq_idx;
+}
diff --git a/drivers/net/wireless/marvell/mwifiex/11ac.h b/drivers/net/wireless/marvell/mwifiex/11ac.h
new file mode 100644
index 000000000000..1ca92c7a8a4a
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/11ac.h
@@ -0,0 +1,45 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11ac
+ *
+ * Copyright (C) 2013-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#ifndef _MWIFIEX_11AC_H_
+#define _MWIFIEX_11AC_H_
+
+#define VHT_CFG_2GHZ BIT(0)
+#define VHT_CFG_5GHZ BIT(1)
+
+enum vht_cfg_misc_config {
+	VHT_CAP_TX_OPERATION = 1,
+	VHT_CAP_ASSOCIATION,
+	VHT_CAP_UAP_ONLY
+};
+
+#define DEFAULT_VHT_MCS_SET 0xfffa
+#define DISABLE_VHT_MCS_SET 0xffff
+
+#define VHT_BW_80_160_80P80 BIT(2)
+
+int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
+				struct mwifiex_bssdescriptor *bss_desc,
+				u8 **buffer);
+int mwifiex_cmd_11ac_cfg(struct mwifiex_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct mwifiex_11ac_vht_cfg *cfg);
+void mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
+			      struct ieee80211_vht_cap *vht_cap, u8 bands);
+#endif /* _MWIFIEX_11AC_H_ */
diff --git a/drivers/net/wireless/marvell/mwifiex/11h.c b/drivers/net/wireless/marvell/mwifiex/11h.c
new file mode 100644
index 000000000000..71a1b580796f
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/11h.c
@@ -0,0 +1,319 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11h
+ *
+ * Copyright (C) 2013-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "main.h"
+#include "fw.h"
+
+
+void mwifiex_init_11h_params(struct mwifiex_private *priv)
+{
+	priv->state_11h.is_11h_enabled = true;
+	priv->state_11h.is_11h_active = false;
+}
+
+inline int mwifiex_is_11h_active(struct mwifiex_private *priv)
+{
+	return priv->state_11h.is_11h_active;
+}
+/* This function appends 11h info to a buffer while joining an
+ * infrastructure BSS
+ */
+static void
+mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
+			       struct mwifiex_bssdescriptor *bss_desc)
+{
+	struct mwifiex_ie_types_header *ie_header;
+	struct mwifiex_ie_types_pwr_capability *cap;
+	struct mwifiex_ie_types_local_pwr_constraint *constraint;
+	struct ieee80211_supported_band *sband;
+	u8 radio_type;
+	int i;
+
+	if (!buffer || !(*buffer))
+		return;
+
+	radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
+	sband = priv->wdev.wiphy->bands[radio_type];
+
+	cap = (struct mwifiex_ie_types_pwr_capability *)*buffer;
+	cap->header.type = cpu_to_le16(WLAN_EID_PWR_CAPABILITY);
+	cap->header.len = cpu_to_le16(2);
+	cap->min_pwr = 0;
+	cap->max_pwr = 0;
+	*buffer += sizeof(*cap);
+
+	constraint = (struct mwifiex_ie_types_local_pwr_constraint *)*buffer;
+	constraint->header.type = cpu_to_le16(WLAN_EID_PWR_CONSTRAINT);
+	constraint->header.len = cpu_to_le16(2);
+	constraint->chan = bss_desc->channel;
+	constraint->constraint = bss_desc->local_constraint;
+	*buffer += sizeof(*constraint);
+
+	ie_header = (struct mwifiex_ie_types_header *)*buffer;
+	ie_header->type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
+	ie_header->len  = cpu_to_le16(2 * sband->n_channels + 2);
+	*buffer += sizeof(*ie_header);
+	*(*buffer)++ = WLAN_EID_SUPPORTED_CHANNELS;
+	*(*buffer)++ = 2 * sband->n_channels;
+	for (i = 0; i < sband->n_channels; i++) {
+		*(*buffer)++ = ieee80211_frequency_to_channel(
+					sband->channels[i].center_freq);
+		*(*buffer)++ = 1; /* one channel in the subband */
+	}
+}
+
+/* Enable or disable the 11h extensions in the firmware */
+int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
+{
+	u32 enable = flag;
+
+	/* enable master mode radar detection on AP interface */
+	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && enable)
+		enable |= MWIFIEX_MASTER_RADAR_DET_MASK;
+
+	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
+				HostCmd_ACT_GEN_SET, DOT11H_I, &enable, true);
+}
+
+/* This functions processes TLV buffer for a pending BSS Join command.
+ *
+ * Activate 11h functionality in the firmware if the spectrum management
+ * capability bit is found in the network we are joining. Also, necessary
+ * TLVs are set based on requested network's 11h capability.
+ */
+void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
+			      struct mwifiex_bssdescriptor *bss_desc)
+{
+	if (bss_desc->sensed_11h) {
+		/* Activate 11h functions in firmware, turns on capability
+		 * bit
+		 */
+		mwifiex_11h_activate(priv, true);
+		priv->state_11h.is_11h_active = true;
+		bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_SPECTRUM_MGMT;
+		mwifiex_11h_process_infra_join(priv, buffer, bss_desc);
+	} else {
+		/* Deactivate 11h functions in the firmware */
+		mwifiex_11h_activate(priv, false);
+		priv->state_11h.is_11h_active = false;
+		bss_desc->cap_info_bitmap &= ~WLAN_CAPABILITY_SPECTRUM_MGMT;
+	}
+}
+
+/* This is DFS CAC work queue function.
+ * This delayed work emits CAC finished event for cfg80211 if
+ * CAC was started earlier.
+ */
+void mwifiex_dfs_cac_work_queue(struct work_struct *work)
+{
+	struct cfg80211_chan_def chandef;
+	struct delayed_work *delayed_work =
+			container_of(work, struct delayed_work, work);
+	struct mwifiex_private *priv =
+			container_of(delayed_work, struct mwifiex_private,
+				     dfs_cac_work);
+
+	if (WARN_ON(!priv))
+		return;
+
+	chandef = priv->dfs_chandef;
+	if (priv->wdev.cac_started) {
+		mwifiex_dbg(priv->adapter, MSG,
+			    "CAC timer finished; No radar detected\n");
+		cfg80211_cac_event(priv->netdev, &chandef,
+				   NL80211_RADAR_CAC_FINISHED,
+				   GFP_KERNEL);
+	}
+}
+
+/* This function prepares channel report request command to FW for
+ * starting radar detection.
+ */
+int mwifiex_cmd_issue_chan_report_request(struct mwifiex_private *priv,
+					  struct host_cmd_ds_command *cmd,
+					  void *data_buf)
+{
+	struct host_cmd_ds_chan_rpt_req *cr_req = &cmd->params.chan_rpt_req;
+	struct mwifiex_radar_params *radar_params = (void *)data_buf;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_CHAN_REPORT_REQUEST);
+	cmd->size = cpu_to_le16(S_DS_GEN);
+	le16_add_cpu(&cmd->size, sizeof(struct host_cmd_ds_chan_rpt_req));
+
+	cr_req->chan_desc.start_freq = cpu_to_le16(MWIFIEX_A_BAND_START_FREQ);
+	cr_req->chan_desc.chan_num = radar_params->chandef->chan->hw_value;
+	cr_req->chan_desc.chan_width = radar_params->chandef->width;
+	cr_req->msec_dwell_time = cpu_to_le32(radar_params->cac_time_ms);
+
+	if (radar_params->cac_time_ms)
+		mwifiex_dbg(priv->adapter, MSG,
+			    "11h: issuing DFS Radar check for channel=%d\n",
+			    radar_params->chandef->chan->hw_value);
+	else
+		mwifiex_dbg(priv->adapter, MSG, "cancelling CAC\n");
+
+	return 0;
+}
+
+int mwifiex_stop_radar_detection(struct mwifiex_private *priv,
+				 struct cfg80211_chan_def *chandef)
+{
+	struct mwifiex_radar_params radar_params;
+
+	memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
+	radar_params.chandef = chandef;
+	radar_params.cac_time_ms = 0;
+
+	return mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
+				HostCmd_ACT_GEN_SET, 0, &radar_params, true);
+}
+
+/* This function is to abort ongoing CAC upon stopping AP operations
+ * or during unload.
+ */
+void mwifiex_abort_cac(struct mwifiex_private *priv)