/*
 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * 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 __HDD_TDSL_H
#define __HDD_TDSL_H
/**===========================================================================

\file         wlan_hdd_tdls.h

\brief       Linux HDD TDLS include file

==========================================================================*/

#define MAX_NUM_TDLS_PEER           3

#define TDLS_SUB_DISCOVERY_PERIOD   100

#define TDLS_MAX_DISCOVER_REQS_PER_TIMER 1

#define TDLS_DISCOVERY_PERIOD       3600000

#define TDLS_TX_STATS_PERIOD        3600000

#define TDLS_IMPLICIT_TRIGGER_PKT_THRESHOLD     100

#define TDLS_RX_IDLE_TIMEOUT        5000

#define TDLS_RSSI_TRIGGER_HYSTERESIS 50

typedef struct
{
    tANI_U32    tdls;
    tANI_U32    tx_period_t;
    tANI_U32    tx_packet_n;
    tANI_U32    discovery_period_t;
    tANI_U32    discovery_tries_n;
    tANI_U32    idle_timeout_t;
    tANI_U32    idle_packet_n;
    tANI_U32    rssi_hysteresis;
    tANI_S32    rssi_trigger_threshold;
    tANI_S32    rssi_teardown_threshold;
} tdls_config_params_t;

typedef enum {
    eTDLS_SUPPORT_DISABLED = 0,
    eTDLS_SUPPORT_EXPLICIT_TRIGGER_ONLY,
    eTDLS_SUPPORT_ENABLED,
} eTDLSSupportMode;

typedef enum {
    eTDLS_CAP_NOT_SUPPORTED = -1,
    eTDLS_CAP_UNKNOWN = 0,
    eTDLS_CAP_SUPPORTED = 1,
} eTDLSCapType;

typedef enum {
    eTDLS_LINK_NOT_CONNECTED = 0,
    eTDLS_LINK_CONNECTED = 1,
} eTDLSLinkStatus;

typedef struct {
    tANI_U16    period;
    tANI_U16    bytes;
} tdls_tx_tput_config_t;

typedef struct {
    tANI_U16    period;
    tANI_U16    tries;
} tdls_discovery_config_t;

typedef struct {
    tANI_U16    timeout;
} tdls_rx_idle_config_t;

typedef struct {
    tANI_U16    rssi_thres;
} tdls_rssi_config_t;

typedef struct {
    struct list_head node;
    tSirMacAddr peerMac;
    tANI_U16    staId ;
    tANI_S8     rssi;
    tANI_S8     tdls_support;
    tANI_S8     link_status;
    tANI_U8     signature;
    tANI_U8     is_responder;
    tANI_U8     discovery_processed;
    tANI_U16    discovery_attempt;
    tANI_U16    tx_pkt;
    tANI_U16    rx_pkt;
    vos_timer_t     peerIdleTimer;
    tANI_U8         isTDLSInProgress;
} hddTdlsPeer_t;


typedef struct {
    struct list_head peer_list[256];
    struct mutex lock;
    struct net_device *dev;
    vos_timer_t     peerDiscoverTimer;
    vos_timer_t     peerUpdateTimer;
    tdls_config_params_t threshold_config;
    tANI_S32        discovery_peer_cnt;
    tANI_U16        connected_peer_count;
    tANI_S8         ap_rssi;
} tdlsCtx_t;

int wlan_hdd_tdls_init(struct net_device *dev);

void wlan_hdd_tdls_exit(void);

void wlan_hdd_tdls_timers_stop(void);

void wlan_hdd_tdls_timers_destroy(void);

void wlan_hdd_tdls_extract_da(struct sk_buff *skb, u8 *mac);

void wlan_hdd_tdls_extract_sa(struct sk_buff *skb, u8 *mac);

int wlan_hdd_tdls_increment_pkt_count(u8 *mac, u8 tx);

int wlan_hdd_tdls_set_sta_id(u8 *mac, u8 staId);

hddTdlsPeer_t *wlan_hdd_tdls_find_peer(u8 *mac);

hddTdlsPeer_t *wlan_hdd_tdls_get_peer(u8 *mac);

void wlan_hdd_tdls_set_link_status(hddTdlsPeer_t *curr_peer, int status);

int wlan_hdd_tdls_set_cap(u8 *mac, int cap);

int wlan_hdd_tdls_set_rssi(u8 *mac, tANI_S8 rxRssi);

int wlan_hdd_tdls_set_responder(u8 *mac, tANI_U8 responder);

int wlan_hdd_tdls_get_responder(u8 *mac);

int wlan_hdd_tdls_set_signature(u8 *mac, tANI_U8 uSignature);

int wlan_hdd_tdls_set_params(struct net_device *dev, tdls_config_params_t *config);

int wlan_hdd_tdls_reset_peer(u8 *mac);

tANI_U16 wlan_hdd_tdlsConnectedPeers(void);

int wlan_hdd_tdls_get_all_peers(char *buf, int buflen);

void wlan_hdd_tdls_connection_callback(hdd_adapter_t *pAdapter);

void wlan_hdd_tdls_disconnection_callback(hdd_adapter_t *pAdapter);

void wlan_hdd_tdls_mgmt_completion_callback(hdd_adapter_t *pAdapter, tANI_U32 statusCode);

void wlan_hdd_tdls_increment_peer_count(void);

void wlan_hdd_tdls_decrement_peer_count(void);

void wlan_hdd_tdls_check_bmps(hdd_context_t *pHddCtx);

void wlan_hdd_tdls_set_connection_progress(u8* mac, u8 isProgress);

u8 wlan_hdd_tdls_is_progress(u8* mac, u8 skip_self);

#endif // __HDD_TDSL_H