diff --git a/drivers/net/wireless/microchip/wilc/host_interface.h b/drivers/net/wireless/microchip/wilc/host_interface.h
new file mode 100644
index 0000000..33fb731
--- /dev/null
+++ b/drivers/net/wireless/microchip/wilc/host_interface.h
@@ -0,0 +1,362 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries
+ * All rights reserved.
+ */
+
+#ifndef HOST_INT_H
+#define HOST_INT_H
+#include <linux/ieee80211.h>
+#include "coreconfigurator.h"
+
+#define IDLE_MODE	0x00
+#define AP_MODE		0x01
+#define STATION_MODE	0x02
+#define GO_MODE		0x03
+#define CLIENT_MODE	0x04
+#define ACTION		0xD0
+#define PROBE_REQ	0x40
+#define PROBE_RESP	0x50
+
+#define ACTION_FRM_IDX				0
+#define PROBE_REQ_IDX				1
+#define MAX_NUM_STA				9
+#define ACTIVE_SCAN_TIME			10
+#define PASSIVE_SCAN_TIME			1200
+#define MIN_SCAN_TIME				10
+#define MAX_SCAN_TIME				1200
+#define DEFAULT_SCAN				0
+#define USER_SCAN				BIT(0)
+#define OBSS_PERIODIC_SCAN			BIT(1)
+#define OBSS_ONETIME_SCAN			BIT(2)
+#define GTK_RX_KEY_BUFF_LEN			24
+#define ADDKEY					0x1
+#define REMOVEKEY				0x2
+#define DEFAULTKEY				0x4
+#define ADDKEY_AP				0x8
+#define MAX_NUM_SCANNED_NETWORKS		100
+#define MAX_NUM_SCANNED_NETWORKS_SHADOW		130
+#define MAX_NUM_PROBED_SSID			10
+#define CHANNEL_SCAN_TIME			250
+
+#define TX_MIC_KEY_LEN				8
+#define RX_MIC_KEY_LEN				8
+#define PTK_KEY_LEN				16
+
+#define TX_MIC_KEY_MSG_LEN			26
+#define RX_MIC_KEY_MSG_LEN			48
+#define PTK_KEY_MSG_LEN				39
+
+#define PMKSA_KEY_LEN				22
+#define ETH_ALEN				6
+#define PMKID_LEN				16
+#define WILC_MAX_NUM_PMKIDS			16
+#define WILC_ADD_STA_LENGTH			40
+#define NUM_CONCURRENT_IFC			2
+#define DRV_HANDLER_SIZE			5
+#define DRV_HANDLER_MASK			0x000000FF
+
+struct rf_info {
+	u8 link_speed;
+	s8 rssi;
+	u32 tx_cnt;
+	u32 rx_cnt;
+	u32 tx_fail_cnt;
+};
+
+enum host_if_state {
+	HOST_IF_IDLE			= 0,
+	HOST_IF_SCANNING		= 1,
+	HOST_IF_CONNECTING		= 2,
+	HOST_IF_WAITING_CONN_RESP	= 3,
+	HOST_IF_CONNECTED		= 4,
+	HOST_IF_P2P_LISTEN		= 5,
+	HOST_IF_FORCE_32BIT		= 0xFFFFFFFF
+};
+
+struct host_if_pmkid {
+	u8 bssid[ETH_ALEN];
+	u8 pmkid[PMKID_LEN];
+};
+
+struct host_if_pmkid_attr {
+	u8 numpmkid;
+	struct host_if_pmkid pmkidlist[WILC_MAX_NUM_PMKIDS];
+};
+
+enum current_tx_rate {
+	AUTORATE	= 0,
+	MBPS_1		= 1,
+	MBPS_2		= 2,
+	MBPS_5_5	= 5,
+	MBPS_11		= 11,
+	MBPS_6		= 6,
+	MBPS_9		= 9,
+	MBPS_12		= 12,
+	MBPS_18		= 18,
+	MBPS_24		= 24,
+	MBPS_36		= 36,
+	MBPS_48		= 48,
+	MBPS_54		= 54
+};
+
+struct cfg_param_attr {
+	u32 flag;
+	u8 ht_enable;
+	u8 bss_type;
+	u8 auth_type;
+	u16 auth_timeout;
+	u8 power_mgmt_mode;
+	u16 short_retry_limit;
+	u16 long_retry_limit;
+	u16 frag_threshold;
+	u16 rts_threshold;
+	u16 preamble_type;
+	u8 short_slot_allowed;
+	u8 txop_prot_disabled;
+	u16 beacon_interval;
+	u16 dtim_period;
+	enum site_survey site_survey_enabled;
+	u16 site_survey_scan_time;
+	u8 scan_source;
+	u16 active_scan_time;
+	u16 passive_scan_time;
+	enum current_tx_rate curr_tx_rate;
+
+};
+
+enum cfg_param {
+	RETRY_SHORT		= BIT(0),
+	RETRY_LONG		= BIT(1),
+	FRAG_THRESHOLD		= BIT(2),
+	RTS_THRESHOLD		= BIT(3),
+	BSS_TYPE		= BIT(4),
+	AUTH_TYPE		= BIT(5),
+	AUTHEN_TIMEOUT		= BIT(6),
+	POWER_MANAGEMENT	= BIT(7),
+	PREAMBLE		= BIT(8),
+	SHORT_SLOT_ALLOWED	= BIT(9),
+	TXOP_PROT_DISABLE	= BIT(10),
+	BEACON_INTERVAL		= BIT(11),
+	DTIM_PERIOD		= BIT(12),
+	SITE_SURVEY		= BIT(13),
+	SITE_SURVEY_SCAN_TIME	= BIT(14),
+	ACTIVE_SCANTIME		= BIT(15),
+	PASSIVE_SCANTIME	= BIT(16),
+	CURRENT_TX_RATE		= BIT(17),
+	HT_ENABLE		= BIT(18),
+};
+
+struct found_net_info {
+	u8 bssid[6];
+	s8 rssi;
+};
+
+enum scan_event {
+	SCAN_EVENT_NETWORK_FOUND	= 0,
+	SCAN_EVENT_DONE			= 1,
+	SCAN_EVENT_ABORTED		= 2,
+	SCAN_EVENT_FORCE_32BIT		= 0xFFFFFFFF
+};
+
+enum conn_event {
+	CONN_DISCONN_EVENT_CONN_RESP		= 0,
+	CONN_DISCONN_EVENT_DISCONN_NOTIF	= 1,
+	CONN_DISCONN_EVENT_FORCE_32BIT		= 0xFFFFFFFF
+};
+
+enum KEY_TYPE {
+	WEP,
+	WPA_RX_GTK,
+	WPA_PTK,
+	PMKSA,
+};
+
+typedef void (*wilc_scan_result)(enum scan_event, struct network_info *,
+				 void *, void *);
+
+typedef void (*wilc_connect_result)(enum conn_event,
+				     struct connect_info *,
+				     u8,
+				     struct disconnect_info *,
+				     void *);
+
+typedef void (*wilc_remain_on_chan_expired)(void *, u32);
+typedef void (*wilc_remain_on_chan_ready)(void *);
+
+struct rcvd_net_info {
+	u8 *buffer;
+	u32 len;
+};
+
+struct hidden_net_info {
+	u8  *ssid;
+	u8 ssid_len;
+};
+
+struct hidden_network {
+	struct hidden_net_info *net_info;
+	u8 n_ssids;
+};
+
+struct user_scan_req {
+	wilc_scan_result scan_result;
+	void *arg;
+	u32 ch_cnt;
+	struct found_net_info net_info[MAX_NUM_SCANNED_NETWORKS];
+};
+
+struct user_conn_req {
+	u8 *bssid;
+	u8 *ssid;
+	u8 security;
+	enum authtype auth_type;
+	size_t ssid_len;
+	u8 *ies;
+	size_t ies_len;
+	wilc_connect_result conn_result;
+	bool ht_capable;
+	void *arg;
+};
+
+struct drv_handler {
+	u32 handler;
+	u8 mode;
+	u8 name;
+};
+
+struct op_mode {
+	u32 mode;
+};
+
+struct get_mac_addr {
+	u8 *mac_addr;
+};
+
+struct ba_session_info {
+	u8 bssid[ETH_ALEN];
+	u8 tid;
+	u16 buf_size;
+	u16 time_out;
+};
+
+struct remain_ch {
+	u16 ch;
+	u32 duration;
+	wilc_remain_on_chan_expired expired;
+	wilc_remain_on_chan_ready ready;
+	void *arg;
+	u32 id;
+};
+
+struct reg_frame {
+	bool reg;
+	u16 frame_type;
+	u8 reg_id;
+};
+
+struct wilc;
+struct host_if_drv {
+	struct user_scan_req usr_scan_req;
+	struct user_conn_req usr_conn_req;
+	struct remain_ch remain_on_ch;
+	u8 remain_on_ch_pending;
+	u64 p2p_timeout;
+	u8 p2p_connect;
+
+	enum host_if_state hif_state;
+
+	u8 assoc_bssid[ETH_ALEN];
+	struct cfg_param_attr cfg_values;
+	/*lock to protect concurrent setting of cfg params*/
+	struct mutex cfg_values_lock;
+
+	struct timer_list scan_timer;
+	struct wilc_vif *scan_timer_vif;
+
+	struct timer_list connect_timer;
+	struct wilc_vif *connect_timer_vif;
+
+	struct timer_list remain_on_ch_timer;
+	struct wilc_vif *remain_on_ch_timer_vif;
+
+	bool ifc_up;
+	int driver_handler_id;
+	u8 assoc_resp[MAX_ASSOC_RESP_FRAME_SIZE];
+};
+
+struct add_sta_param {
+	u8 bssid[ETH_ALEN];
+	u16 aid;
+	u8 rates_len;
+	const u8 *rates;
+	bool ht_supported;
+	struct ieee80211_ht_cap ht_capa;
+	u16 flags_mask;
+	u16 flags_set;
+};
+
+struct wilc_vif;
+int wilc_remove_wep_key(struct wilc_vif *vif, u8 index);
+int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index);
+int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len,
+			     u8 index);
+int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len,
+			    u8 index, u8 mode, enum authtype auth_type);
+int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
+		 const u8 *mac_addr, const u8 *rx_mic, const u8 *tx_mic,
+		 u8 mode, u8 cipher_mode, u8 index);
+s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac,
+			   u32 *out_val);
+int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len,
+		    u8 index, u32 key_rsc_len, const u8 *key_rsc,
+		    const u8 *rx_mic, const u8 *tx_mic, u8 mode,
+		    u8 cipher_mode);
+int wilc_set_pmkid_info(struct wilc_vif *vif,
+			struct host_if_pmkid_attr *pmkid);
+int wilc_get_mac_address(struct wilc_vif *vif, u8 *mac_addr);
+int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid,
+		      size_t ssid_len, const u8 *ies, size_t ies_len,
+		      wilc_connect_result connect_result, void *user_arg,
+		      u8 security, enum authtype auth_type,
+		      u8 channel, void *join_params);
+int wilc_disconnect(struct wilc_vif *vif, u16 reason_code);
+int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel);
+int wilc_get_rssi(struct wilc_vif *vif, s8 *rssi_level);
+int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
+	      u8 *ch_freq_list, u8 ch_list_len, const u8 *ies,
+	      size_t ies_len, wilc_scan_result scan_result, void *user_arg,
+	      struct hidden_network *hidden_network);
+int wilc_hif_set_cfg(struct wilc_vif *vif,
+		     struct cfg_param_attr *cfg_param);
+int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler);
+int wilc_deinit(struct wilc_vif *vif);
+int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,
+		    u32 head_len, u8 *head, u32 tail_len, u8 *tail);
+int wilc_del_beacon(struct wilc_vif *vif);
+int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param);
+int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN]);
+int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr);
+int wilc_edit_station(struct wilc_vif *vif,
+		      struct add_sta_param *sta_param);
+int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout);
+int wilc_setup_multicast_filter(struct wilc_vif *vif, bool enabled, u32 count,
+				u8 *mc_list);
+int wilc_remain_on_channel(struct wilc_vif *vif, u32 session_id,
+			   u32 duration, u16 chan,
+			   wilc_remain_on_chan_expired expired,
+			   wilc_remain_on_chan_ready ready,
+			   void *user_arg);
+int wilc_listen_state_expired(struct wilc_vif *vif, u32 session_id);
+void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg);
+int wilc_set_wfi_drv_handler(struct wilc_vif *vif, int index, u8 mode,
+			     u8 ifc_id, bool is_sync);
+int wilc_set_operation_mode(struct wilc_vif *vif, u32 mode);
+int wilc_get_statistics(struct wilc_vif *vif, struct rf_info *stats,
+			bool is_sync);
+void wilc_resolve_disconnect_aberration(struct wilc_vif *vif);
+int wilc_get_vif_idx(struct wilc_vif *vif);
+int wilc_set_tx_power(struct wilc_vif *vif, u8 tx_power);
+int wilc_get_tx_power(struct wilc_vif *vif, u8 *tx_power);
+
+#endif
