Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1498 insertions, 0 deletions

diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
new file mode 100644
index 000000000..a2ad2b53f
--- /dev/null
+++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
@@ -0,0 +1,1498 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: functions for station ioctl
+ *
+ * Copyright 2011-2020 NXP
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.h"
+#include "cfg80211.h"
+
+static int disconnect_on_suspend;
+module_param(disconnect_on_suspend, int, 0644);
+
+/*
+ * Copies the multicast address list from device to driver.
+ *
+ * This function does not validate the destination memory for
+ * size, and the calling function must ensure enough memory is
+ * available.
+ */
+int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
+			    struct net_device *dev)
+{
+	int i = 0;
+	struct netdev_hw_addr *ha;
+
+	netdev_for_each_mc_addr(ha, dev)
+		memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
+
+	return i;
+}
+
+/*
+ * Wait queue completion handler.
+ *
+ * This function waits on a cmd wait queue. It also cancels the pending
+ * request after waking up, in case of errors.
+ */
+int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
+				struct cmd_ctrl_node *cmd_queued)
+{
+	int status;
+
+	/* Wait for completion */
+	status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
+						  *(cmd_queued->condition),
+						  (12 * HZ));
+	if (status <= 0) {
+		if (status == 0)
+			status = -ETIMEDOUT;
+		mwifiex_dbg(adapter, ERROR, "cmd_wait_q terminated: %d\n",
+			    status);
+		mwifiex_cancel_all_pending_cmd(adapter);
+		return status;
+	}
+
+	status = adapter->cmd_wait_q.status;
+	adapter->cmd_wait_q.status = 0;
+
+	return status;
+}
+
+/*
+ * This function prepares the correct firmware command and
+ * issues it to set the multicast list.
+ *
+ * This function can be used to enable promiscuous mode, or enable all
+ * multicast packets, or to enable selective multicast.
+ */
+int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
+				struct mwifiex_multicast_list *mcast_list)
+{
+	int ret = 0;
+	u16 old_pkt_filter;
+
+	old_pkt_filter = priv->curr_pkt_filter;
+
+	if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
+		mwifiex_dbg(priv->adapter, INFO,
+			    "info: Enable Promiscuous mode\n");
+		priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
+		priv->curr_pkt_filter &=
+			~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
+	} else {
+		/* Multicast */
+		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
+		if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
+			mwifiex_dbg(priv->adapter, INFO,
+				    "info: Enabling All Multicast!\n");
+			priv->curr_pkt_filter |=
+				HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
+		} else {
+			priv->curr_pkt_filter &=
+				~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
+			mwifiex_dbg(priv->adapter, INFO,
+				    "info: Set multicast list=%d\n",
+				    mcast_list->num_multicast_addr);
+			/* Send multicast addresses to firmware */
+			ret = mwifiex_send_cmd(priv,
+					       HostCmd_CMD_MAC_MULTICAST_ADR,
+					       HostCmd_ACT_GEN_SET, 0,
+					       mcast_list, false);
+		}
+	}
+	mwifiex_dbg(priv->adapter, INFO,
+		    "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
+		    old_pkt_filter, priv->curr_pkt_filter);
+	if (old_pkt_filter != priv->curr_pkt_filter) {
+		ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
+				       HostCmd_ACT_GEN_SET,
+				       0, &priv->curr_pkt_filter, false);
+	}
+
+	return ret;
+}
+
+/*
+ * This function fills bss descriptor structure using provided
+ * information.
+ * beacon_ie buffer is allocated in this function. It is caller's
+ * responsibility to free the memory.
+ */
+int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
+			      struct cfg80211_bss *bss,
+			      struct mwifiex_bssdescriptor *bss_desc)
+{
+	u8 *beacon_ie;
+	size_t beacon_ie_len;
+	struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
+	const struct cfg80211_bss_ies *ies;
+
+	rcu_read_lock();
+	ies = rcu_dereference(bss->ies);
+	beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
+	beacon_ie_len = ies->len;
+	bss_desc->timestamp = ies->tsf;
+	rcu_read_unlock();
+
+	if (!beacon_ie) {
+		mwifiex_dbg(priv->adapter, ERROR,
+			    " failed to alloc beacon_ie\n");
+		return -ENOMEM;
+	}
+
+	memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
+	bss_desc->rssi = bss->signal;
+	/* The caller of this function will free beacon_ie */
+	bss_desc->beacon_buf = beacon_ie;
+	bss_desc->beacon_buf_size = beacon_ie_len;
+	bss_desc->beacon_period = bss->beacon_interval;
+	bss_desc->cap_info_bitmap = bss->capability;
+	bss_desc->bss_band = bss_priv->band;
+	bss_desc->fw_tsf = bss_priv->fw_tsf;
+	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
+		mwifiex_dbg(priv->adapter, INFO,
+			    "info: InterpretIE: AP WEP enabled\n");
+		bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
+	} else {
+		bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
+	}
+	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
+		bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
+	else
+		bss_desc->bss_mode = NL80211_IFTYPE_STATION;
+
+	/* Disable 11ac by default. Enable it only where there
+	 * exist VHT_CAP IE in AP beacon
+	 */
+	bss_desc->disable_11ac = true;
+
+	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
+		bss_desc->sensed_11h = true;
+
+	return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
+}
+
+void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
+{
+	if (priv->adapter->dt_node) {
+		char txpwr[] = {"marvell,00_txpwrlimit"};
+
+		memcpy(&txpwr[8], priv->adapter->country_code, 2);
+		mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
+	}
+}
+
+static int mwifiex_process_country_ie(struct mwifiex_private *priv,
+				      struct cfg80211_bss *bss)
+{
+	const u8 *country_ie;
+	u8 country_ie_len;
+	struct mwifiex_802_11d_domain_reg *domain_info =
+					&priv->adapter->domain_reg;
+
+	rcu_read_lock();
+	country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
+	if (!country_ie) {
+		rcu_read_unlock();
+		return 0;
+	}
+
+	country_ie_len = country_ie[1];
+	if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
+		rcu_read_unlock();
+		return 0;
+	}
+
+	if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
+		rcu_read_unlock();
+		mwifiex_dbg(priv->adapter, INFO,
+			    "11D: skip setting domain info in FW\n");
+		return 0;
+	}
+
+	if (country_ie_len >
+	    (IEEE80211_COUNTRY_STRING_LEN + MWIFIEX_MAX_TRIPLET_802_11D)) {
+		rcu_read_unlock();
+		mwifiex_dbg(priv->adapter, ERROR,
+			    "11D: country_ie_len overflow!, deauth AP\n");
+		return -EINVAL;
+	}
+
+	memcpy(priv->adapter->country_code, &country_ie[2], 2);
+
+	domain_info->country_code[0] = country_ie[2];
+	domain_info->country_code[1] = country_ie[3];
+	domain_info->country_code[2] = ' ';
+
+	country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
+
+	domain_info->no_of_triplet =
+		country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
+
+	memcpy((u8 *)domain_info->triplet,
+	       &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
+
+	rcu_read_unlock();
+
+	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
+			     HostCmd_ACT_GEN_SET, 0, NULL, false)) {
+		mwifiex_dbg(priv->adapter, ERROR,
+			    "11D: setting domain info in FW fail\n");
+		return -1;
+	}
+
+	mwifiex_dnld_txpwr_table(priv);
+
+	return 0;
+}
+
+/*
+ * In Ad-Hoc mode, the IBSS is created if not found in scan list.
+ * In both Ad-Hoc and infra mode, an deauthentication is performed
+ * first.
+ */
+int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
+		      struct cfg80211_ssid *req_ssid)
+{
+	int ret;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_bssdescriptor *bss_desc = NULL;
+
+	priv->scan_block = false;
+
+	if (bss) {
+		if (adapter->region_code == 0x00 &&
+		    mwifiex_process_country_ie(priv, bss))
+			return -EINVAL;
+
+		/* Allocate and fill new bss descriptor */
+		bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
+				   GFP_KERNEL);
+		if (!bss_desc)
+			return -ENOMEM;
+
+		ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
+		if (ret)
+			goto done;
+	}
+
+	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
+	    priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
+		u8 config_bands;
+
+		if (!bss_desc)
+			return -1;
+
+		if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
+						HostCmd_SCAN_RADIO_TYPE_BG) {
+			config_bands = BAND_B | BAND_G | BAND_GN;
+		} else {
+			config_bands = BAND_A | BAND_AN;
+			if (adapter->fw_bands & BAND_AAC)
+				config_bands |= BAND_AAC;
+		}
+
+		if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
+			adapter->config_bands = config_bands;
+
+		ret = mwifiex_check_network_compatibility(priv, bss_desc);
+		if (ret)
+			goto done;
+
+		if (mwifiex_11h_get_csa_closed_channel(priv) ==
+							(u8)bss_desc->channel) {
+			mwifiex_dbg(adapter, ERROR,
+				    "Attempt to reconnect on csa closed chan(%d)\n",
+				    bss_desc->channel);
+			ret = -1;
+			goto done;
+		}
+
+		mwifiex_dbg(adapter, INFO,
+			    "info: SSID found in scan list ...\t"
+			    "associating...\n");
+
+		mwifiex_stop_net_dev_queue(priv->netdev, adapter);
+		if (netif_carrier_ok(priv->netdev))
+			netif_carrier_off(priv->netdev);
+
+		/* Clear any past association response stored for
+		 * application retrieval */
+		priv->assoc_rsp_size = 0;
+		ret = mwifiex_associate(priv, bss_desc);
+
+		/* If auth type is auto and association fails using open mode,
+		 * try to connect using shared mode */
+		if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
+		    priv->sec_info.is_authtype_auto &&
+		    priv->sec_info.wep_enabled) {
+			priv->sec_info.authentication_mode =
+						NL80211_AUTHTYPE_SHARED_KEY;
+			ret = mwifiex_associate(priv, bss_desc);
+		}
+
+		if (bss)
+			cfg80211_put_bss(priv->adapter->wiphy, bss);
+	} else {
+		/* Adhoc mode */
+		/* If the requested SSID matches current SSID, return */
+		if (bss_desc && bss_desc->ssid.ssid_len &&
+		    (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
+				       ssid, &bss_desc->ssid))) {
+			ret = 0;
+			goto done;
+		}
+
+		priv->adhoc_is_link_sensed = false;
+
+		ret = mwifiex_check_network_compatibility(priv, bss_desc);
+
+		mwifiex_stop_net_dev_queue(priv->netdev, adapter);
+		if (netif_carrier_ok(priv->netdev))
+			netif_carrier_off(priv->netdev);
+
+		if (!ret) {
+			mwifiex_dbg(adapter, INFO,
+				    "info: network found in scan\t"
+				    " list. Joining...\n");
+			ret = mwifiex_adhoc_join(priv, bss_desc);
+			if (bss)
+				cfg80211_put_bss(priv->adapter->wiphy, bss);
+		} else {
+			mwifiex_dbg(adapter, INFO,
+				    "info: Network not found in\t"
+				    "the list, creating adhoc with ssid = %s\n",
+				    req_ssid->ssid);
+			ret = mwifiex_adhoc_start(priv, req_ssid);
+		}
+	}
+
+done:
+	/* beacon_ie buffer was allocated in function
+	 * mwifiex_fill_new_bss_desc(). Free it now.
+	 */
+	if (bss_desc)
+		kfree(bss_desc->beacon_buf);
+	kfree(bss_desc);
+
+	if (ret < 0)
+		priv->attempted_bss_desc = NULL;
+
+	return ret;
+}
+
+/*
+ * IOCTL request handler to set host sleep configuration.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ */
+int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
+			  int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
+
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	int status = 0;
+	u32 prev_cond = 0;
+
+	if (!hs_cfg)
+		return -ENOMEM;
+
+	switch (action) {
+	case HostCmd_ACT_GEN_SET:
+		if (adapter->pps_uapsd_mode) {
+			mwifiex_dbg(adapter, INFO,
+				    "info: Host Sleep IOCTL\t"
+				    "is blocked in UAPSD/PPS mode\n");
+			status = -1;
+			break;
+		}
+		if (hs_cfg->is_invoke_hostcmd) {
+			if (hs_cfg->conditions == HS_CFG_CANCEL) {
+				if (!test_bit(MWIFIEX_IS_HS_CONFIGURED,
+					      &adapter->work_flags))
+					/* Already cancelled */
+					break;
+				/* Save previous condition */
+				prev_cond = le32_to_cpu(adapter->hs_cfg
+							.conditions);
+				adapter->hs_cfg.conditions =
+						cpu_to_le32(hs_cfg->conditions);
+			} else if (hs_cfg->conditions) {
+				adapter->hs_cfg.conditions =
+						cpu_to_le32(hs_cfg->conditions);
+				adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
+				if (hs_cfg->gap)
+					adapter->hs_cfg.gap = (u8)hs_cfg->gap;
+			} else if (adapter->hs_cfg.conditions ==
+				   cpu_to_le32(HS_CFG_CANCEL)) {
+				/* Return failure if no parameters for HS
+				   enable */
+				status = -1;
+				break;
+			}
+
+			status = mwifiex_send_cmd(priv,
+						  HostCmd_CMD_802_11_HS_CFG_ENH,
+						  HostCmd_ACT_GEN_SET, 0,
+						  &adapter->hs_cfg,
+						  cmd_type == MWIFIEX_SYNC_CMD);
+
+			if (hs_cfg->conditions == HS_CFG_CANCEL)
+				/* Restore previous condition */
+				adapter->hs_cfg.conditions =
+						cpu_to_le32(prev_cond);
+		} else {
+			adapter->hs_cfg.conditions =
+						cpu_to_le32(hs_cfg->conditions);
+			adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
+			adapter->hs_cfg.gap = (u8)hs_cfg->gap;
+		}
+		break;
+	case HostCmd_ACT_GEN_GET:
+		hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
+		hs_cfg->gpio = adapter->hs_cfg.gpio;
+		hs_cfg->gap = adapter->hs_cfg.gap;
+		break;
+	default:
+		status = -1;
+		break;
+	}
+
+	return status;
+}
+
+/*
+ * Sends IOCTL request to cancel the existing Host Sleep configuration.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
+{
+	struct mwifiex_ds_hs_cfg hscfg;
+
+	hscfg.conditions = HS_CFG_CANCEL;
+	hscfg.is_invoke_hostcmd = true;
+
+	return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
+				    cmd_type, &hscfg);
+}
+EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
+
+/*
+ * Sends IOCTL request to cancel the existing Host Sleep configuration.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
+{
+	struct mwifiex_ds_hs_cfg hscfg;
+	struct mwifiex_private *priv;
+	int i;
+
+	if (disconnect_on_suspend) {
+		for (i = 0; i < adapter->priv_num; i++) {
+			priv = adapter->priv[i];
+			if (priv)
+				mwifiex_deauthenticate(priv, NULL);
+		}
+	}
+
+	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
+
+	if (priv && priv->sched_scanning) {
+#ifdef CONFIG_PM
+		if (priv->wdev.wiphy->wowlan_config &&
+		    !priv->wdev.wiphy->wowlan_config->nd_config) {
+#endif
+			mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
+			mwifiex_stop_bg_scan(priv);
+			cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
+#ifdef CONFIG_PM
+		}
+#endif
+	}
+
+	if (adapter->hs_activated) {
+		mwifiex_dbg(adapter, CMD,
+			    "cmd: HS Already activated\n");
+		return true;
+	}
+
+	adapter->hs_activate_wait_q_woken = false;
+
+	memset(&hscfg, 0, sizeof(hscfg));
+	hscfg.is_invoke_hostcmd = true;
+
+	set_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
+	mwifiex_cancel_all_pending_cmd(adapter);
+
+	if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
+						   MWIFIEX_BSS_ROLE_STA),
+				  HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
+				  &hscfg)) {
+		mwifiex_dbg(adapter, ERROR,
+			    "IOCTL request HS enable failed\n");
+		return false;
+	}
+
+	if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
+					     adapter->hs_activate_wait_q_woken,
+					     (10 * HZ)) <= 0) {
+		mwifiex_dbg(adapter, ERROR,
+			    "hs_activate_wait_q terminated\n");
+		return false;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
+
+/*
+ * IOCTL request handler to get BSS information.
+ *
+ * This function collates the information from different driver structures
+ * to send to the user.
+ */
+int mwifiex_get_bss_info(struct mwifiex_private *priv,
+			 struct mwifiex_bss_info *info)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct mwifiex_bssdescriptor *bss_desc;
+
+	if (!info)
+		return -1;
+
+	bss_desc = &priv->curr_bss_params.bss_descriptor;
+
+	info->bss_mode = priv->bss_mode;
+
+	memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
+
+	memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
+
+	info->bss_chan = bss_desc->channel;
+
+	memcpy(info->country_code, adapter->country_code,
+	       IEEE80211_COUNTRY_STRING_LEN);
+
+	info->media_connected = priv->media_connected;
+
+	info->max_power_level = priv->max_tx_power_level;
+	info->min_power_level = priv->min_tx_power_level;
+
+	info->adhoc_state = priv->adhoc_state;
+
+	info->bcn_nf_last = priv->bcn_nf_last;
+
+	if (priv->sec_info.wep_enabled)
+		info->wep_status = true;
+	else
+		info->wep_status = false;
+
+	info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED,
+					  &adapter->work_flags);
+	info->is_deep_sleep = adapter->is_deep_sleep;
+
+	return 0;
+}
+
+/*
+ * The function disables auto deep sleep mode.
+ */
+int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
+{
+	struct mwifiex_ds_auto_ds auto_ds = {
+		.auto_ds = DEEP_SLEEP_OFF,
+	};
+
+	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
+				DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
+}
+EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
+
+/*
+ * Sends IOCTL request to get the data rate.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
+{
+	int ret;
+
+	ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
+			       HostCmd_ACT_GEN_GET, 0, NULL, true);
+
+	if (!ret) {
+		if (priv->is_data_rate_auto)
+			*rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
+							   priv->tx_htinfo);
+		else
+			*rate = priv->data_rate;
+	}
+
+	return ret;
+}
+
+/*
+ * IOCTL request handler to set tx power configuration.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ *
+ * For non-auto power mode, all the following power groups are set -
+ *      - Modulation class HR/DSSS
+ *      - Modulation class OFDM
+ *      - Modulation class HTBW20
+ *      - Modulation class HTBW40
+ */
+int mwifiex_set_tx_power(struct mwifiex_private *priv,
+			 struct mwifiex_power_cfg *power_cfg)
+{
+	int ret;
+	struct host_cmd_ds_txpwr_cfg *txp_cfg;
+	struct mwifiex_types_power_group *pg_tlv;
+	struct mwifiex_power_group *pg;
+	u8 *buf;
+	u16 dbm = 0;
+
+	if (!power_cfg->is_power_auto) {
+		dbm = (u16) power_cfg->power_level;
+		if ((dbm < priv->min_tx_power_level) ||
+		    (dbm > priv->max_tx_power_level)) {
+			mwifiex_dbg(priv->adapter, ERROR,
+				    "txpower value %d dBm\t"
+				    "is out of range (%d dBm-%d dBm)\n",
+				    dbm, priv->min_tx_power_level,
+				    priv->max_tx_power_level);
+			return -1;
+		}
+	}
+	buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
+	txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
+	if (!power_cfg->is_power_auto) {
+		u16 dbm_min = power_cfg->is_power_fixed ?
+			      dbm : priv->min_tx_power_level;
+
+		txp_cfg->mode = cpu_to_le32(1);
+		pg_tlv = (struct mwifiex_types_power_group *)
+			 (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
+		pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
+		pg_tlv->length =
+			cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
+		pg = (struct mwifiex_power_group *)
+		     (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
+		      + sizeof(struct mwifiex_types_power_group));
+		/* Power group for modulation class HR/DSSS */
+		pg->first_rate_code = 0x00;
+		pg->last_rate_code = 0x03;
+		pg->modulation_class = MOD_CLASS_HR_DSSS;
+		pg->power_step = 0;
+		pg->power_min = (s8) dbm_min;
+		pg->power_max = (s8) dbm;
+		pg++;
+		/* Power group for modulation class OFDM */
+		pg->first_rate_code = 0x00;
+		pg->last_rate_code = 0x07;
+		pg->modulation_class = MOD_CLASS_OFDM;
+		pg->power_step = 0;
+		pg->power_min = (s8) dbm_min;
+		pg->power_max = (s8) dbm;
+		pg++;
+		/* Power group for modulation class HTBW20 */
+		pg->first_rate_code = 0x00;
+		pg->last_rate_code = 0x20;
+		pg->modulation_class = MOD_CLASS_HT;
+		pg->power_step = 0;
+		pg->power_min = (s8) dbm_min;
+		pg->power_max = (s8) dbm;
+		pg->ht_bandwidth = HT_BW_20;
+		pg++;
+		/* Power group for modulation class HTBW40 */
+		pg->first_rate_code = 0x00;
+		pg->last_rate_code = 0x20;
+		pg->modulation_class = MOD_CLASS_HT;
+		pg->power_step = 0;
+		pg->power_min = (s8) dbm_min;
+		pg->power_max = (s8) dbm;
+		pg->ht_bandwidth = HT_BW_40;
+	}
+	ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
+			       HostCmd_ACT_GEN_SET, 0, buf, true);
+
+	kfree(buf);
+	return ret;
+}
+
+/*
+ * IOCTL request handler to get power save mode.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ */
+int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
+{
+	int ret;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u16 sub_cmd;
+
+	if (*ps_mode)
+		adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
+	else
+		adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
+	sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
+	ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
+			       sub_cmd, BITMAP_STA_PS, NULL, true);
+	if ((!ret) && (sub_cmd == DIS_AUTO_PS))
+		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
+				       GET_PS, 0, NULL, false);
+
+	return ret;
+}
+
+/*
+ * IOCTL request handler to set/reset WPA IE.
+ *
+ * The supplied WPA IE is treated as a opaque buffer. Only the first field
+ * is checked to determine WPA version. If buffer length is zero, the existing
+ * WPA IE is reset.
+ */
+static int mwifiex_set_wpa_ie(struct mwifiex_private *priv,
+			      u8 *ie_data_ptr, u16 ie_len)
+{
+	if (ie_len) {
+		if (ie_len > sizeof(priv->wpa_ie)) {
+			mwifiex_dbg(priv->adapter, ERROR,
+				    "failed to copy WPA IE, too big\n");
+			return -1;
+		}
+		memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
+		priv->wpa_ie_len = ie_len;
+		mwifiex_dbg(priv->adapter, CMD,
+			    "cmd: Set Wpa_ie_len=%d IE=%#x\n",
+			    priv->wpa_ie_len, priv->wpa_ie[0]);
+
+		if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
+			priv->sec_info.wpa_enabled = true;
+		} else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
+			priv->sec_info.wpa2_enabled = true;
+		} else {
+			priv->sec_info.wpa_enabled = false;
+			priv->sec_info.wpa2_enabled = false;
+		}
+	} else {
+		memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
+		priv->wpa_ie_len = 0;
+		mwifiex_dbg(priv->adapter, INFO,
+			    "info: reset wpa_ie_len=%d IE=%#x\n",
+			    priv->wpa_ie_len, priv->wpa_ie[0]);
+		priv->sec_info.wpa_enabled = false;
+		priv->sec_info.wpa2_enabled = false;
+	}
+
+	return 0;
+}
+
+/*
+ * IOCTL request handler to set/reset WAPI IE.
+ *
+ * The supplied WAPI IE is treated as a opaque buffer. Only the first field
+ * is checked to internally enable WAPI. If buffer length is zero, the existing
+ * WAPI IE is reset.
+ */
+static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
+			       u8 *ie_data_ptr, u16 ie_len)
+{
+	if (ie_len) {
+		if (ie_len > sizeof(priv->wapi_ie)) {
+			mwifiex_dbg(priv->adapter, ERROR,
+				    "info: failed to copy WAPI IE, too big\n");
+			return -1;
+		}
+		memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
+		priv->wapi_ie_len = ie_len;
+		mwifiex_dbg(priv->adapter, CMD,
+			    "cmd: Set wapi_ie_len=%d IE=%#x\n",
+			    priv->wapi_ie_len, priv->wapi_ie[0]);
+
+		if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
+			priv->sec_info.wapi_enabled = true;
+	} else {
+		memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
+		priv->wapi_ie_len = ie_len;
+		mwifiex_dbg(priv->adapter, INFO,
+			    "info: Reset wapi_ie_len=%d IE=%#x\n",
+			    priv->wapi_ie_len, priv->wapi_ie[0]);
+		priv->sec_info.wapi_enabled = false;
+	}
+	return 0;
+}
+
+/*
+ * IOCTL request handler to set/reset WPS IE.
+ *
+ * The supplied WPS IE is treated as a opaque buffer. Only the first field
+ * is checked to internally enable WPS. If buffer length is zero, the existing
+ * WPS IE is reset.
+ */
+static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
+			       u8 *ie_data_ptr, u16 ie_len)
+{
+	if (ie_len) {
+		if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
+			mwifiex_dbg(priv->adapter, ERROR,
+				    "info: failed to copy WPS IE, too big\n");
+			return -1;
+		}
+
+		priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
+		if (!priv->wps_ie)
+			return -ENOMEM;
+
+		memcpy(priv->wps_ie, ie_data_ptr, ie_len);
+		priv->wps_ie_len = ie_len;
+		mwifiex_dbg(priv->adapter, CMD,
+			    "cmd: Set wps_ie_len=%d IE=%#x\n",
+			    priv->wps_ie_len, priv->wps_ie[0]);
+	} else {
+		kfree(priv->wps_ie);
+		priv->wps_ie_len = ie_len;
+		mwifiex_dbg(priv->adapter, INFO,
+			    "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
+	}
+	return 0;
+}
+
+/*
+ * IOCTL request handler to set WAPI key.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ */
+static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
+			       struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+
+	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
+				HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
+				encrypt_key, true);
+}
+
+/*
+ * IOCTL request handler to set WEP network key.
+ *
+ * This function prepares the correct firmware command and
+ * issues it, after validation checks.
+ */
+static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
+			      struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	int ret;
+	struct mwifiex_wep_key *wep_key;
+	int index;
+
+	if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
+		priv->wep_key_curr_index = 0;
+	wep_key = &priv->wep_key[priv->wep_key_curr_index];
+	index = encrypt_key->key_index;
+	if (encrypt_key->key_disable) {
+		priv->sec_info.wep_enabled = 0;
+	} else if (!encrypt_key->key_len) {
+		/* Copy the required key as the current key */
+		wep_key = &priv->wep_key[index];
+		if (!wep_key->key_length) {
+			mwifiex_dbg(adapter, ERROR,
+				    "key not set, so cannot enable it\n");
+			return -1;
+		}
+
+		if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
+			memcpy(encrypt_key->key_material,
+			       wep_key->key_material, wep_key->key_length);
+			encrypt_key->key_len = wep_key->key_length;
+		}
+
+		priv->wep_key_curr_index = (u16) index;
+		priv->sec_info.wep_enabled = 1;
+	} else {
+		wep_key = &priv->wep_key[index];
+		memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
+		/* Copy the key in the driver */
+		memcpy(wep_key->key_material,
+		       encrypt_key->key_material,
+		       encrypt_key->key_len);
+		wep_key->key_index = index;
+		wep_key->key_length = encrypt_key->key_len;
+		priv->sec_info.wep_enabled = 1;
+	}
+	if (wep_key->key_length) {
+		void *enc_key;
+
+		if (encrypt_key->key_disable) {
+			memset(&priv->wep_key[index], 0,
+			       sizeof(struct mwifiex_wep_key));
+			goto done;
+		}
+
+		if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
+			enc_key = encrypt_key;
+		else
+			enc_key = NULL;
+
+		/* Send request to firmware */
+		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
+				       HostCmd_ACT_GEN_SET, 0, enc_key, false);
+		if (ret)
+			return ret;
+	}
+
+done:
+	if (priv->sec_info.wep_enabled)
+		priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
+	else
+		priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
+
+	ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
+			       HostCmd_ACT_GEN_SET, 0,
+			       &priv->curr_pkt_filter, true);
+
+	return ret;
+}
+
+/*
+ * IOCTL request handler to set WPA key.
+ *
+ * This function prepares the correct firmware command and
+ * issues it, after validation checks.
+ *
+ * Current driver only supports key length of up to 32 bytes.
+ *
+ * This function can also be used to disable a currently set key.
+ */
+static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
+			      struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+	int ret;
+	u8 remove_key = false;
+	struct host_cmd_ds_802_11_key_material *ibss_key;
+
+	/* Current driver only supports key length of up to 32 bytes */
+	if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
+		mwifiex_dbg(priv->adapter, ERROR,
+			    "key length too long\n");
+		return -1;
+	}
+
+	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
+		/*
+		 * IBSS/WPA-None uses only one key (Group) for both receiving
+		 * and sending unicast and multicast packets.
+		 */
+		/* Send the key as PTK to firmware */
+		encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
+		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
+				       HostCmd_ACT_GEN_SET,
+				       KEY_INFO_ENABLED, encrypt_key, false);
+		if (ret)
+			return ret;
+
+		ibss_key = &priv->aes_key;
+		memset(ibss_key, 0,
+		       sizeof(struct host_cmd_ds_802_11_key_material));
+		/* Copy the key in the driver */
+		memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
+		       encrypt_key->key_len);
+		memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
+		       sizeof(ibss_key->key_param_set.key_len));
+		ibss_key->key_param_set.key_type_id
+			= cpu_to_le16(KEY_TYPE_ID_TKIP);
+		ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
+
+		/* Send the key as GTK to firmware */
+		encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
+	}
+
+	if (!encrypt_key->key_index)
+		encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
+
+	if (remove_key)
+		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
+				       HostCmd_ACT_GEN_SET,
+				       !KEY_INFO_ENABLED, encrypt_key, true);
+	else
+		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
+				       HostCmd_ACT_GEN_SET,
+				       KEY_INFO_ENABLED, encrypt_key, true);
+
+	return ret;
+}
+
+/*
+ * IOCTL request handler to set/get network keys.
+ *
+ * This is a generic key handling function which supports WEP, WPA
+ * and WAPI.
+ */
+static int
+mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
+			      struct mwifiex_ds_encrypt_key *encrypt_key)
+{
+	int status;
+
+	if (encrypt_key->is_wapi_key)
+		status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
+	else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
+		status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
+	else
+		status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
+	return status;
+}
+
+/*
+ * This function returns the driver version.
+ */
+int
+mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
+			       int max_len)
+{
+	union {
+		__le32 l;
+		u8 c[4];
+	} ver;
+	char fw_ver[32];
+
+	ver.l = cpu_to_le32(adapter->fw_release_number);
+	sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
+
+	snprintf(version, max_len, driver_version, fw_ver);
+
+	mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
+
+	return 0;
+}
+
+/*
+ * Sends IOCTL request to set encoding parameters.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
+		       const u8 *key, int key_len, u8 key_index,
+		       const u8 *mac_addr, int disable)
+{
+	struct mwifiex_ds_encrypt_key encrypt_key;
+
+	memset(&encrypt_key, 0, sizeof(encrypt_key));
+	encrypt_key.key_len = key_len;
+	encrypt_key.key_index = key_index;
+
+	if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
+		encrypt_key.is_igtk_key = true;
+
+	if (!disable) {
+		if (key_len)
+			memcpy(encrypt_key.key_material, key, key_len);
+		else
+			encrypt_key.is_current_wep_key = true;
+
+		if (mac_addr)
+			memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
+		if (kp && kp->seq && kp->seq_len) {
+			memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
+			encrypt_key.pn_len = kp->seq_len;
+			encrypt_key.is_rx_seq_valid = true;
+		}
+	} else {
+		encrypt_key.key_disable = true;
+		if (mac_addr)
+			memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
+	}
+
+	return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
+}
+
+/*
+ * Sends IOCTL request to get extended version.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int
+mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
+{
+	struct mwifiex_ver_ext ver_ext;
+
+	memset(&ver_ext, 0, sizeof(ver_ext));
+	ver_ext.version_str_sel = version_str_sel;
+	if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
+			     HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
+		return -1;
+
+	return 0;
+}
+
+int
+mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
+			   struct ieee80211_channel *chan,
+			   unsigned int duration)
+{
+	struct host_cmd_ds_remain_on_chan roc_cfg;
+	u8 sc;
+
+	memset(&roc_cfg, 0, sizeof(roc_cfg));
+	roc_cfg.action = cpu_to_le16(action);
+	if (action == HostCmd_ACT_GEN_SET) {
+		roc_cfg.band_cfg = chan->band;
+		sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
+		roc_cfg.band_cfg |= (sc << 2);
+
+		roc_cfg.channel =
+			ieee80211_frequency_to_channel(chan->center_freq);
+		roc_cfg.duration = cpu_to_le32(duration);
+	}
+	if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
+			     action, 0, &roc_cfg, true)) {
+		mwifiex_dbg(priv->adapter, ERROR,
+			    "failed to remain on channel\n");
+		return -1;
+	}
+
+	return roc_cfg.status;
+}
+
+/*
+ * Sends IOCTL request to get statistics information.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int
+mwifiex_get_stats_info(struct mwifiex_private *priv,
+		       struct mwifiex_ds_get_stats *log)
+{
+	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
+				HostCmd_ACT_GEN_GET, 0, log, true);
+}
+
+/*
+ * IOCTL request handler to read/write register.
+ *
+ * This function prepares the correct firmware command and
+ * issues it.
+ *
+ * Access to the following registers are supported -
+ *      - MAC
+ *      - BBP
+ *      - RF
+ *      - PMIC
+ *      - CAU
+ */
+static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
+					struct mwifiex_ds_reg_rw *reg_rw,
+					u16 action)
+{
+	u16 cmd_no;
+
+	switch (reg_rw->type) {
+	case MWIFIEX_REG_MAC:
+		cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
+		break;
+	case MWIFIEX_REG_BBP:
+		cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
+		break;
+	case MWIFIEX_REG_RF:
+		cmd_no = HostCmd_CMD_RF_REG_ACCESS;
+		break;
+	case MWIFIEX_REG_PMIC:
+		cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
+		break;
+	case MWIFIEX_REG_CAU:
+		cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
+		break;
+	default:
+		return -1;
+	}
+
+	return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
+}
+
+/*
+ * Sends IOCTL request to write to a register.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int
+mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
+		  u32 reg_offset, u32 reg_value)
+{
+	struct mwifiex_ds_reg_rw reg_rw;
+
+	reg_rw.type = reg_type;
+	reg_rw.offset = reg_offset;
+	reg_rw.value = reg_value;
+
+	return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
+}
+
+/*
+ * Sends IOCTL request to read from a register.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int
+mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
+		 u32 reg_offset, u32 *value)
+{
+	int ret;
+	struct mwifiex_ds_reg_rw reg_rw;
+
+	reg_rw.type = reg_type;
+	reg_rw.offset = reg_offset;
+	ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
+
+	if (ret)
+		goto done;
+
+	*value = reg_rw.value;
+
+done:
+	return ret;
+}
+
+/*
+ * Sends IOCTL request to read from EEPROM.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int
+mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
+		    u8 *value)
+{
+	int ret;
+	struct mwifiex_ds_read_eeprom rd_eeprom;
+
+	rd_eeprom.offset =  offset;
+	rd_eeprom.byte_count = bytes;
+
+	/* Send request to firmware */
+	ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
+			       HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
+
+	if (!ret)
+		memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA,
+		       rd_eeprom.byte_count));
+	return ret;
+}
+
+/*
+ * This function sets a generic IE. In addition to generic IE, it can
+ * also handle WPA, WPA2 and WAPI IEs.
+ */
+static int
+mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
+			  u16 ie_len)
+{
+	struct ieee_types_vendor_header *pvendor_ie;
+	static const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
+	static const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
+	u16 unparsed_len = ie_len, cur_ie_len;
+
+	/* If the passed length is zero, reset the buffer */
+	if (!ie_len) {
+		priv->gen_ie_buf_len = 0;
+		priv->wps.session_enable = false;
+		return 0;
+	} else if (!ie_data_ptr ||
+		   ie_len <= sizeof(struct ieee_types_header)) {
+		return -1;
+	}
+	pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
+
+	while (pvendor_ie) {
+		cur_ie_len = pvendor_ie->len + sizeof(struct ieee_types_header);
+
+		if (pvendor_ie->element_id == WLAN_EID_RSN) {
+			/* IE is a WPA/WPA2 IE so call set_wpa function */
+			mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, cur_ie_len);
+			priv->wps.session_enable = false;
+			goto next_ie;
+		}
+
+		if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
+			/* IE is a WAPI IE so call set_wapi function */
+			mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie,
+					    cur_ie_len);
+			goto next_ie;
+		}
+
+		if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) {
+			/* Test to see if it is a WPA IE, if not, then
+			 * it is a gen IE
+			 */
+			if (!memcmp(&pvendor_ie->oui, wpa_oui,
+				    sizeof(wpa_oui))) {
+				/* IE is a WPA/WPA2 IE so call set_wpa function
+				 */
+				mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie,
+						   cur_ie_len);
+				priv->wps.session_enable = false;
+				goto next_ie;
+			}
+
+			if (!memcmp(&pvendor_ie->oui, wps_oui,
+				    sizeof(wps_oui))) {
+				/* Test to see if it is a WPS IE,
+				 * if so, enable wps session flag
+				 */
+				priv->wps.session_enable = true;
+				mwifiex_dbg(priv->adapter, MSG,
+					    "WPS Session Enabled.\n");
+				mwifiex_set_wps_ie(priv, (u8 *)pvendor_ie,
+						   cur_ie_len);
+				goto next_ie;
+			}
+		}
+
+		/* Saved in gen_ie, such as P2P IE.etc.*/
+
+		/* Verify that the passed length is not larger than the
+		 * available space remaining in the buffer
+		 */
+		if (cur_ie_len <
+		    (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
+			/* Append the passed data to the end
+			 * of the genIeBuffer
+			 */
+			memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len,
+			       (u8 *)pvendor_ie, cur_ie_len);
+			/* Increment the stored buffer length by the
+			 * size passed
+			 */
+			priv->gen_ie_buf_len += cur_ie_len;
+		}
+
+next_ie:
+		unparsed_len -= cur_ie_len;
+
+		if (unparsed_len <= sizeof(struct ieee_types_header))
+			pvendor_ie = NULL;
+		else
+			pvendor_ie = (struct ieee_types_vendor_header *)
+				(((u8 *)pvendor_ie) + cur_ie_len);
+	}
+
+	return 0;
+}
+
+/*
+ * IOCTL request handler to set/get generic IE.
+ *
+ * In addition to various generic IEs, this function can also be
+ * used to set the ARP filter.
+ */
+static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
+				     struct mwifiex_ds_misc_gen_ie *gen_ie,
+				     u16 action)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	switch (gen_ie->type) {
+	case MWIFIEX_IE_TYPE_GEN_IE:
+		if (action == HostCmd_ACT_GEN_GET) {
+			gen_ie->len = priv->wpa_ie_len;
+			memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
+		} else {
+			mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
+						  (u16) gen_ie->len);
+		}
+		break;
+	case MWIFIEX_IE_TYPE_ARP_FILTER:
+		memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
+		if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
+			adapter->arp_filter_size = 0;
+			mwifiex_dbg(adapter, ERROR,
+				    "invalid ARP filter size\n");
+			return -1;
+		} else {
+			memcpy(adapter->arp_filter, gen_ie->ie_data,
+			       gen_ie->len);
+			adapter->arp_filter_size = gen_ie->len;
+		}
+		break;
+	default:
+		mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
+		return -1;
+	}
+	return 0;
+}
+
+/*
+ * Sends IOCTL request to set a generic IE.
+ *
+ * This function allocates the IOCTL request buffer, fills it
+ * with requisite parameters and calls the IOCTL handler.
+ */
+int
+mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
+{
+	struct mwifiex_ds_misc_gen_ie gen_ie;
+
+	if (ie_len > IEEE_MAX_IE_SIZE)
+		return -EFAULT;
+
+	gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
+	gen_ie.len = ie_len;
+	memcpy(gen_ie.ie_data, ie, ie_len);
+	if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
+		return -EFAULT;
+
+	return 0;
+}
+
+/* This function get Host Sleep wake up reason.
+ *
+ */
+int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
+			      int cmd_type,
+			      struct mwifiex_ds_wakeup_reason *wakeup_reason)
+{
+	int status = 0;
+
+	status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON,
+				  HostCmd_ACT_GEN_GET, 0, wakeup_reason,
+				  cmd_type == MWIFIEX_SYNC_CMD);
+
+	return status;
+}
+
+int mwifiex_get_chan_info(struct mwifiex_private *priv,
+			  struct mwifiex_channel_band *channel_band)
+{
+	int status = 0;
+
+	status = mwifiex_send_cmd(priv, HostCmd_CMD_STA_CONFIGURE,
+				  HostCmd_ACT_GEN_GET, 0, channel_band,
+				  MWIFIEX_SYNC_CMD);
+
+	return status;
+}