/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 ******************************************************************************/
#ifndef __IEEE80211_H
#define __IEEE80211_H

#include <osdep_service.h>
#include <drv_types.h>
#include "linux/ieee80211.h"
#include "wifi.h"

#include <linux/wireless.h>

#if (WIRELESS_EXT < 22)
#error "Obsolete pre 2007 wireless extensions are not supported"
#endif


#ifdef CONFIG_8723AU_AP_MODE

/* STA flags */
#define WLAN_STA_AUTH BIT(0)
#define WLAN_STA_ASSOC BIT(1)
#define WLAN_STA_PS BIT(2)
#define WLAN_STA_TIM BIT(3)
#define WLAN_STA_PERM BIT(4)
#define WLAN_STA_AUTHORIZED BIT(5)
#define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
#define WLAN_STA_SHORT_PREAMBLE BIT(7)
#define WLAN_STA_PREAUTH BIT(8)
#define WLAN_STA_WME BIT(9)
#define WLAN_STA_MFP BIT(10)
#define WLAN_STA_HT BIT(11)
#define WLAN_STA_WPS BIT(12)
#define WLAN_STA_MAYBE_WPS BIT(13)
#define WLAN_STA_NONERP BIT(31)

#endif

#define WPA_CIPHER_NONE		BIT(0)
#define WPA_CIPHER_WEP40	BIT(1)
#define WPA_CIPHER_WEP104	BIT(2)
#define WPA_CIPHER_TKIP		BIT(3)
#define WPA_CIPHER_CCMP		BIT(4)


#define WPA_SELECTOR_LEN 4
extern u8 RTW_WPA_OUI23A_TYPE[] ;
extern u16 RTW_WPA_VERSION23A ;
extern u8 WPA_AUTH_KEY_MGMT_NONE23A[];
extern u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X23A[];
extern u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X23A[];
extern u8 WPA_CIPHER_SUITE_NONE23A[];
extern u8 WPA_CIPHER_SUITE_WEP4023A[];
extern u8 WPA_CIPHER_SUITE_TKIP23A[];
extern u8 WPA_CIPHER_SUITE_WRAP23A[];
extern u8 WPA_CIPHER_SUITE_CCMP23A[];
extern u8 WPA_CIPHER_SUITE_WEP10423A[];


#define RSN_HEADER_LEN 4
#define RSN_SELECTOR_LEN 4

extern u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X23A[];
extern u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X23A[];
extern u8 RSN_CIPHER_SUITE_NONE23A[];
extern u8 RSN_CIPHER_SUITE_WEP4023A[];
extern u8 RSN_CIPHER_SUITE_TKIP23A[];
extern u8 RSN_CIPHER_SUITE_WRAP23A[];
extern u8 RSN_CIPHER_SUITE_CCMP23A[];
extern u8 RSN_CIPHER_SUITE_WEP10423A[];

enum ratr_table_mode {
	RATR_INX_WIRELESS_NGB = 0,	/*  BGN 40 Mhz 2SS 1SS */
	RATR_INX_WIRELESS_NG = 1,	/*  GN or N */
	RATR_INX_WIRELESS_NB = 2,	/*  BGN 20 Mhz 2SS 1SS  or BN */
	RATR_INX_WIRELESS_N = 3,
	RATR_INX_WIRELESS_GB = 4,
	RATR_INX_WIRELESS_G = 5,
	RATR_INX_WIRELESS_B = 6,
	RATR_INX_WIRELESS_MC = 7,
	RATR_INX_WIRELESS_AC_N = 8,
};

enum NETWORK_TYPE
{
	WIRELESS_INVALID = 0,
	/* Sub-Element */
	/*  tx: cck only , rx: cck only, hw: cck */
	WIRELESS_11B = BIT(0),
	/*  tx: ofdm only, rx: ofdm & cck, hw: cck & ofdm */
	WIRELESS_11G = BIT(1),
	/*  tx: ofdm only, rx: ofdm only, hw: ofdm only */
	WIRELESS_11A = BIT(2),
	/*  tx: MCS only, rx: MCS & cck, hw: MCS & cck */
	WIRELESS_11_24N = BIT(3),
	/*  tx: MCS only, rx: MCS & ofdm, hw: ofdm only */
	WIRELESS_11_5N = BIT(4),
	/* WIRELESS_AUTO		= BIT(5), */
	WIRELESS_AC = BIT(6),

	/* Combination */
	 /*  tx: cck & ofdm, rx: cck & ofdm & MCS, hw: cck & ofdm */
	WIRELESS_11BG = WIRELESS_11B|WIRELESS_11G,
	/*  tx: ofdm & MCS, rx: ofdm & cck & MCS, hw: cck & ofdm */
	WIRELESS_11G_24N = WIRELESS_11G | WIRELESS_11_24N,
	/*  tx: ofdm & MCS, rx: ofdm & MCS, hw: ofdm only */
	WIRELESS_11A_5N = WIRELESS_11A | WIRELESS_11_5N,
	/*  tx: ofdm & cck & MCS, rx: ofdm & cck & MCS, hw: ofdm & cck */
	WIRELESS_11BG_24N = WIRELESS_11B | WIRELESS_11G | WIRELESS_11_24N,
	/*  tx: ofdm & MCS, rx: ofdm & MCS, hw: ofdm only */
	WIRELESS_11AGN = WIRELESS_11A | WIRELESS_11G | WIRELESS_11_24N |
				WIRELESS_11_5N,
	WIRELESS_11ABGN = WIRELESS_11A | WIRELESS_11B | WIRELESS_11G |
				WIRELESS_11_24N | WIRELESS_11_5N,
};

#define SUPPORTED_24G_NETTYPE_MSK (WIRELESS_11B | WIRELESS_11G | WIRELESS_11_24N)
#define SUPPORTED_5G_NETTYPE_MSK (WIRELESS_11A | WIRELESS_11_5N)

#define IsSupported24G(NetType) (NetType & SUPPORTED_24G_NETTYPE_MSK ? true : false)
#define IsSupported5G(NetType) (NetType & SUPPORTED_5G_NETTYPE_MSK ? true : false)

#define IsEnableHWCCK(NetType) IsSupported24G(NetType)
#define IsEnableHWOFDM(NetType) (NetType & (WIRELESS_11G|WIRELESS_11_24N|SUPPORTED_5G_NETTYPE_MSK) ? true : false)

#define IsSupportedRxCCK(NetType) IsEnableHWCCK(NetType)
#define IsSupportedRxOFDM(NetType) IsEnableHWOFDM(NetType)
#define IsSupportedRxMCS(NetType) IsEnableHWOFDM(NetType)

#define IsSupportedTxCCK(NetType) (NetType & (WIRELESS_11B) ? true : false)
#define IsSupportedTxOFDM(NetType) (NetType & (WIRELESS_11G|WIRELESS_11A) ? true : false)
#define IsSupportedTxMCS(NetType) (NetType & (WIRELESS_11_24N|WIRELESS_11_5N) ? true : false)


#define MIN_FRAG_THRESHOLD     256U
#define	MAX_FRAG_THRESHOLD     2346U

/* QoS,QOS */
#define NORMAL_ACK			0
#define NO_ACK				1
#define NON_EXPLICIT_ACK		2
#define BLOCK_ACK			3

/* IEEE 802.11 defines */

#define P80211_OUI_LEN 3

struct ieee80211_snap_hdr {
	u8    dsap;   /* always 0xAA */
	u8    ssap;   /* always 0xAA */
	u8    ctrl;   /* always 0x03 */
	u8    oui[P80211_OUI_LEN];    /* organizational universal id */
} __attribute__ ((packed));


#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)

#define WLAN_REASON_JOIN_WRONG_CHANNEL       65534
#define WLAN_REASON_EXPIRATION_CHK 65535

#define IEEE80211_CCK_RATE_LEN			4
#define IEEE80211_NUM_OFDM_RATESLEN	8


#define IEEE80211_CCK_RATE_1MB		        0x02
#define IEEE80211_CCK_RATE_2MB		        0x04
#define IEEE80211_CCK_RATE_5MB		        0x0B
#define IEEE80211_CCK_RATE_11MB		        0x16
#define IEEE80211_OFDM_RATE_LEN			8
#define IEEE80211_OFDM_RATE_6MB		        0x0C
#define IEEE80211_OFDM_RATE_9MB		        0x12
#define IEEE80211_OFDM_RATE_12MB		0x18
#define IEEE80211_OFDM_RATE_18MB		0x24
#define IEEE80211_OFDM_RATE_24MB		0x30
#define IEEE80211_OFDM_RATE_36MB		0x48
#define IEEE80211_OFDM_RATE_48MB		0x60
#define IEEE80211_OFDM_RATE_54MB		0x6C
#define IEEE80211_BASIC_RATE_MASK		0x80

#define IEEE80211_CCK_RATE_1MB_MASK		(1<<0)
#define IEEE80211_CCK_RATE_2MB_MASK		(1<<1)
#define IEEE80211_CCK_RATE_5MB_MASK		(1<<2)
#define IEEE80211_CCK_RATE_11MB_MASK		(1<<3)
#define IEEE80211_OFDM_RATE_6MB_MASK		(1<<4)
#define IEEE80211_OFDM_RATE_9MB_MASK		(1<<5)
#define IEEE80211_OFDM_RATE_12MB_MASK		(1<<6)
#define IEEE80211_OFDM_RATE_18MB_MASK		(1<<7)
#define IEEE80211_OFDM_RATE_24MB_MASK		(1<<8)
#define IEEE80211_OFDM_RATE_36MB_MASK		(1<<9)
#define IEEE80211_OFDM_RATE_48MB_MASK		(1<<10)
#define IEEE80211_OFDM_RATE_54MB_MASK		(1<<11)

#define IEEE80211_CCK_RATES_MASK	        0x0000000F
#define IEEE80211_CCK_BASIC_RATES_MASK	(IEEE80211_CCK_RATE_1MB_MASK | \
	IEEE80211_CCK_RATE_2MB_MASK)
#define IEEE80211_CCK_DEFAULT_RATES_MASK	(IEEE80211_CCK_BASIC_RATES_MASK | \
	IEEE80211_CCK_RATE_5MB_MASK | \
	IEEE80211_CCK_RATE_11MB_MASK)

#define IEEE80211_OFDM_RATES_MASK		0x00000FF0
#define IEEE80211_OFDM_BASIC_RATES_MASK	(IEEE80211_OFDM_RATE_6MB_MASK | \
	IEEE80211_OFDM_RATE_12MB_MASK | \
	IEEE80211_OFDM_RATE_24MB_MASK)
#define IEEE80211_OFDM_DEFAULT_RATES_MASK	(IEEE80211_OFDM_BASIC_RATES_MASK | \
	IEEE80211_OFDM_RATE_9MB_MASK  | \
	IEEE80211_OFDM_RATE_18MB_MASK | \
	IEEE80211_OFDM_RATE_36MB_MASK | \
	IEEE80211_OFDM_RATE_48MB_MASK | \
	IEEE80211_OFDM_RATE_54MB_MASK)
#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
				      IEEE80211_CCK_DEFAULT_RATES_MASK)

#define IEEE80211_NUM_OFDM_RATES	    8
#define IEEE80211_NUM_CCK_RATES	            4
#define IEEE80211_OFDM_SHIFT_MASK_A         4

#define WEP_KEYS 4


/* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 * only use 8, and then use extended rates for the remaining supported
 * rates.  Other APs, however, stick all of their supported rates on the
 * main rates information element... */
#define MAX_RATES_LENGTH	12
#define MAX_RATES_EX_LENGTH	16
#define MAX_CHANNEL_NUMBER	161
#define RTW_CH_MAX_2G_CHANNEL	14	/* Max channel in 2G band */

#define MAX_WPA_IE_LEN		256
#define MAX_WPS_IE_LEN		256
#define MAX_P2P_IE_LEN		256
#define MAX_WFD_IE_LEN		128

/*
join_res:
-1: authentication fail
-2: association fail
> 0: TID
*/

#define MAXTID	16

#define WME_OUI_TYPE 2
#define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
#define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
#define WME_OUI_SUBTYPE_TSPEC_ELEMENT 2
#define WME_VERSION 1


#define OUI_BROADCOM 0x00904c /* Broadcom (Epigram) */

#define VENDOR_HT_CAPAB_OUI_TYPE 0x33 /* 00-90-4c:0x33 */

/* Represent channel details, subset of ieee80211_channel */
struct rtw_ieee80211_channel {
	/* enum nl80211_band band; */
	/* u16 center_freq; */
	u16 hw_value;
	u32 flags;
	/* int max_antenna_gain; */
	/* int max_power; */
	/* int max_reg_power; */
	/* bool beacon_found; */
	/* u32 orig_flags; */
	/* int orig_mag; */
	/* int orig_mpwr; */
};

#define CHAN_FMT \
	/*"band:%d, "*/ \
	/*"center_freq:%u, "*/ \
	"hw_value:%u, " \
	"flags:0x%08x" \
	/*"max_antenna_gain:%d\n"*/ \
	/*"max_power:%d\n"*/ \
	/*"max_reg_power:%d\n"*/ \
	/*"beacon_found:%u\n"*/ \
	/*"orig_flags:0x%08x\n"*/ \
	/*"orig_mag:%d\n"*/ \
	/*"orig_mpwr:%d\n"*/

#define CHAN_ARG(channel) \
	/*(channel)->band*/ \
	/*, (channel)->center_freq*/ \
	(channel)->hw_value \
	, (channel)->flags \
	/*, (channel)->max_antenna_gain*/ \
	/*, (channel)->max_power*/ \
	/*, (channel)->max_reg_power*/ \
	/*, (channel)->beacon_found*/ \
	/*, (channel)->orig_flags*/ \
	/*, (channel)->orig_mag*/ \
	/*, (channel)->orig_mpwr*/ \

u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, const u8 *source, uint *frlen);

u8 hal_ch_offset_to_secondary_ch_offset23a(u8 ch_offset);
u8 *rtw_set_ie23a_ch_switch(u8 *buf, u32 *buf_len, u8 ch_switch_mode, u8 new_ch, u8 ch_switch_cnt);
u8 *rtw_set_ie23a_secondary_ch_offset(u8 *buf, u32 *buf_len, u8 secondary_ch_offset);

u8 *rtw_get_ie23a(u8*pbuf, int index, int *len, int limit);
u8 *rtw_get_ie23a_ex(u8 *in_ie, uint in_len, u8 eid, u8 *oui, u8 oui_len, u8 *ie, uint *ielen);
int rtw_ies_remove_ie23a(u8 *ies, uint *ies_len, uint offset, u8 eid, u8 *oui, u8 oui_len);

void rtw_set_supported_rate23a(u8 *SupportedRates, uint mode);

int rtw_parse_wpa_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x);
int rtw_parse_wpa2_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x);

const u8 *rtw_get_wps_attr23a(const u8 *wps_ie, uint wps_ielen, u16 target_attr_id ,u8 *buf_attr, u32 *len_attr);
const u8 *rtw_get_wps_attr_content23a(const u8 *wps_ie, uint wps_ielen, u16 target_attr_id ,u8 *buf_content);

uint	rtw_get_rateset_len23a(u8	*rateset);

struct registry_priv;
int rtw_generate_ie23a(struct registry_priv *pregistrypriv);


int rtw_get_bit_value_from_ieee_value23a(u8 val);

int rtw_check_network_type23a(unsigned char *rate, int ratelen, int channel);

void rtw_get_bcn_info23a(struct wlan_network *pnetwork);

u16 rtw_mcs_rate23a(u8 rf_type, u8 bw_40MHz, u8 short_GI_20, u8 short_GI_40,
		    struct ieee80211_mcs_info *mcs);

#endif /* IEEE80211_H */