/*
   This file contains wireless extension handlers.

   This is part of rtl8180 OpenSource driver.
   Copyright (C) Andrea Merello 2004-2005  <andreamrl@tiscali.it>
   Released under the terms of GPL (General Public Licence)

   Parts of this driver are based on the GPL part
   of the official realtek driver.

   Parts of this driver are based on the rtl8180 driver skeleton
   from Patric Schenke & Andres Salomon.

   Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver.

   We want to tanks the Authors of those projects and the Ndiswrapper
   project Authors.
*/

#include <linux/string.h>
#include "r8192E.h"
#include "r8192E_hw.h"
#include "r8192E_wx.h"
#ifdef ENABLE_DOT11D
#include "ieee80211/dot11d.h"
#endif

#define RATE_COUNT 12
static const u32 rtl8180_rates[] = {1000000,2000000,5500000,11000000,
	6000000,9000000,12000000,18000000,24000000,36000000,48000000,54000000};


#ifndef ENETDOWN
#define ENETDOWN 1
#endif
static int r8192_wx_get_freq(struct net_device *dev,
			     struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_freq(priv->ieee80211,a,wrqu,b);
}


static int r8192_wx_get_mode(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv=ieee80211_priv(dev);

	return ieee80211_wx_get_mode(priv->ieee80211,a,wrqu,b);
}


static int r8192_wx_get_rate(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_rate(priv->ieee80211,info,wrqu,extra);
}


static int r8192_wx_set_rate(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	ret = ieee80211_wx_set_rate(priv->ieee80211,info,wrqu,extra);

	up(&priv->wx_sem);

	return ret;
}


static int r8192_wx_set_rts(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	ret = ieee80211_wx_set_rts(priv->ieee80211,info,wrqu,extra);

	up(&priv->wx_sem);

	return ret;
}

static int r8192_wx_get_rts(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_rts(priv->ieee80211,info,wrqu,extra);
}

static int r8192_wx_set_power(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	ret = ieee80211_wx_set_power(priv->ieee80211,info,wrqu,extra);

	up(&priv->wx_sem);

	return ret;
}

static int r8192_wx_get_power(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_power(priv->ieee80211,info,wrqu,extra);
}

static int r8192_wx_set_rawtx(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int ret;

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	ret = ieee80211_wx_set_rawtx(priv->ieee80211, info, wrqu, extra);

	up(&priv->wx_sem);

	return ret;

}

static int r8192_wx_force_reset(struct net_device *dev,
		struct iw_request_info *info,
		union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	down(&priv->wx_sem);

	printk("%s(): force reset ! extra is %d\n",__FUNCTION__, *extra);
	priv->force_reset = *extra;
	up(&priv->wx_sem);
	return 0;

}


static int r8192_wx_set_crcmon(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int *parms = (int *)extra;
	int enable = (parms[0] > 0);
	short prev = priv->crcmon;

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	if(enable)
		priv->crcmon=1;
	else
		priv->crcmon=0;

	DMESG("bad CRC in monitor mode are %s",
	      priv->crcmon ? "accepted" : "rejected");

	if(prev != priv->crcmon && priv->up){
		//rtl8180_down(dev);
		//rtl8180_up(dev);
	}

	up(&priv->wx_sem);

	return 0;
}

static int r8192_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	RT_RF_POWER_STATE	rtState;
	int ret;

	if (priv->bHwRadioOff)
		return 0;

	rtState = priv->ieee80211->eRFPowerState;
	down(&priv->wx_sem);
#ifdef ENABLE_IPS
	if(wrqu->mode == IW_MODE_ADHOC){

		if(priv->ieee80211->PowerSaveControl.bInactivePs){
			if(rtState == eRfOff){
				if(priv->ieee80211->RfOffReason > RF_CHANGE_BY_IPS)
				{
					RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",__FUNCTION__);
					up(&priv->wx_sem);
					return -1;
				}
				else{
					RT_TRACE(COMP_ERR, "%s(): IPSLeave\n",__FUNCTION__);
					down(&priv->ieee80211->ips_sem);
					IPSLeave(dev);
					up(&priv->ieee80211->ips_sem);
				}
			}
		}
	}
#endif
	ret = ieee80211_wx_set_mode(priv->ieee80211,a,wrqu,b);

	//rtl8187_set_rxconf(dev);

	up(&priv->wx_sem);
	return ret;
}

struct  iw_range_with_scan_capa
{
        /* Informative stuff (to choose between different interface) */
        __u32           throughput;     /* To give an idea... */
        /* In theory this value should be the maximum benchmarked
         * TCP/IP throughput, because with most of these devices the
         * bit rate is meaningless (overhead an co) to estimate how
         * fast the connection will go and pick the fastest one.
         * I suggest people to play with Netperf or any benchmark...
         */

        /* NWID (or domain id) */
        __u32           min_nwid;       /* Minimal NWID we are able to set */
        __u32           max_nwid;       /* Maximal NWID we are able to set */

        /* Old Frequency (backward compat - moved lower ) */
        __u16           old_num_channels;
        __u8            old_num_frequency;

        /* Scan capabilities */
        __u8            scan_capa;
};
static int rtl8180_wx_get_range(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct iw_range *range = (struct iw_range *)extra;
	struct iw_range_with_scan_capa* tmp = (struct iw_range_with_scan_capa*)range;
	struct r8192_priv *priv = ieee80211_priv(dev);
	u16 val;
	int i;

	wrqu->data.length = sizeof(*range);
	memset(range, 0, sizeof(*range));

	/* Let's try to keep this struct in the same order as in
	 * linux/include/wireless.h
	 */

	/* TODO: See what values we can set, and remove the ones we can't
	 * set, or fill them with some default data.
	 */

	/* ~5 Mb/s real (802.11b) */
	range->throughput = 130 * 1000 * 1000;

	// TODO: Not used in 802.11b?
//	range->min_nwid;	/* Minimal NWID we are able to set */
	// TODO: Not used in 802.11b?
//	range->max_nwid;	/* Maximal NWID we are able to set */

        /* Old Frequency (backward compat - moved lower ) */
//	range->old_num_channels;
//	range->old_num_frequency;
//	range->old_freq[6]; /* Filler to keep "version" at the same offset */
	if(priv->rf_set_sens != NULL)
		range->sensitivity = priv->max_sens;	/* signal level threshold range */

	range->max_qual.qual = 100;
	/* TODO: Find real max RSSI and stick here */
	range->max_qual.level = 0;
	range->max_qual.noise = -98;
	range->max_qual.updated = 7; /* Updated all three */

	range->avg_qual.qual = 92; /* > 8% missed beacons is 'bad' */
	/* TODO: Find real 'good' to 'bad' threshold value for RSSI */
	range->avg_qual.level = 20 + -98;
	range->avg_qual.noise = 0;
	range->avg_qual.updated = 7; /* Updated all three */

	range->num_bitrates = RATE_COUNT;

	for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
		range->bitrate[i] = rtl8180_rates[i];
	}

	range->min_frag = MIN_FRAG_THRESHOLD;
	range->max_frag = MAX_FRAG_THRESHOLD;

	range->min_pmp=0;
	range->max_pmp = 5000000;
	range->min_pmt = 0;
	range->max_pmt = 65535*1000;
	range->pmp_flags = IW_POWER_PERIOD;
	range->pmt_flags = IW_POWER_TIMEOUT;
	range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
	range->we_version_compiled = WIRELESS_EXT;
	range->we_version_source = 18;

//	range->retry_capa;	/* What retry options are supported */
//	range->retry_flags;	/* How to decode max/min retry limit */
//	range->r_time_flags;	/* How to decode max/min retry life */
//	range->min_retry;	/* Minimal number of retries */
//	range->max_retry;	/* Maximal number of retries */
//	range->min_r_time;	/* Minimal retry lifetime */
//	range->max_r_time;	/* Maximal retry lifetime */


	for (i = 0, val = 0; i < 14; i++) {

		// Include only legal frequencies for some countries
#ifdef ENABLE_DOT11D
		if ((GET_DOT11D_INFO(priv->ieee80211)->channel_map)[i+1]) {
#else
		if ((priv->ieee80211->channel_map)[i+1]) {
#endif
		        range->freq[val].i = i + 1;
			range->freq[val].m = ieee80211_wlan_frequencies[i] * 100000;
			range->freq[val].e = 1;
			val++;
		} else {
			// FIXME: do we need to set anything for channels
			// we don't use ?
		}

		if (val == IW_MAX_FREQUENCIES)
		break;
	}
	range->num_frequency = val;
	range->num_channels = val;
#if WIRELESS_EXT > 17
	range->enc_capa = IW_ENC_CAPA_WPA|IW_ENC_CAPA_WPA2|
			  IW_ENC_CAPA_CIPHER_TKIP|IW_ENC_CAPA_CIPHER_CCMP;
#endif
	tmp->scan_capa = 0x01;
	return 0;
}


static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device* ieee = priv->ieee80211;
	RT_RF_POWER_STATE	rtState;
	int ret;

	if (priv->bHwRadioOff)
		return 0;

	rtState = priv->ieee80211->eRFPowerState;

	if(!priv->up) return -ENETDOWN;
	if (priv->ieee80211->LinkDetectInfo.bBusyTraffic == true)
		return -EAGAIN;

	if (wrqu->data.flags & IW_SCAN_THIS_ESSID)
	{
		struct iw_scan_req* req = (struct iw_scan_req*)b;
		if (req->essid_len)
		{
			//printk("==**&*&*&**===>scan set ssid:%s\n", req->essid);
			ieee->current_network.ssid_len = req->essid_len;
			memcpy(ieee->current_network.ssid, req->essid, req->essid_len);
			//printk("=====>network ssid:%s\n", ieee->current_network.ssid);
		}
	}

	down(&priv->wx_sem);
#ifdef ENABLE_IPS
	priv->ieee80211->actscanning = true;
	if(priv->ieee80211->state != IEEE80211_LINKED){
		if(priv->ieee80211->PowerSaveControl.bInactivePs){
			if(rtState == eRfOff){
				if(priv->ieee80211->RfOffReason > RF_CHANGE_BY_IPS)
				{
					RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",__FUNCTION__);
					up(&priv->wx_sem);
					return -1;
				}
				else{
					//RT_TRACE(COMP_PS, "%s(): IPSLeave\n",__FUNCTION__);
					down(&priv->ieee80211->ips_sem);
					IPSLeave(dev);
					up(&priv->ieee80211->ips_sem);
				}
			}
		}
		priv->ieee80211->scanning = 0;
		ieee80211_softmac_scan_syncro(priv->ieee80211);
		ret = 0;
	}
	else
#else

	if(priv->ieee80211->state != IEEE80211_LINKED){
		priv->ieee80211->scanning = 0;
		ieee80211_softmac_scan_syncro(priv->ieee80211);
		ret = 0;
	}
	else
#endif
	ret = ieee80211_wx_set_scan(priv->ieee80211,a,wrqu,b);

	up(&priv->wx_sem);
	return ret;
}


static int r8192_wx_get_scan(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{

	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	if(!priv->up) return -ENETDOWN;

	down(&priv->wx_sem);

	ret = ieee80211_wx_get_scan(priv->ieee80211,a,wrqu,b);

	up(&priv->wx_sem);

	return ret;
}

static int r8192_wx_set_essid(struct net_device *dev,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	RT_RF_POWER_STATE	rtState;
	int ret;

	if (priv->bHwRadioOff)
		return 0;

	rtState = priv->ieee80211->eRFPowerState;
	down(&priv->wx_sem);

#ifdef ENABLE_IPS
        down(&priv->ieee80211->ips_sem);
        IPSLeave(dev);
        up(&priv->ieee80211->ips_sem);
#endif
	ret = ieee80211_wx_set_essid(priv->ieee80211,a,wrqu,b);

	up(&priv->wx_sem);

	return ret;
}


static int r8192_wx_get_essid(struct net_device *dev,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *b)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	down(&priv->wx_sem);

	ret = ieee80211_wx_get_essid(priv->ieee80211, a, wrqu, b);

	up(&priv->wx_sem);

	return ret;
}


static int r8192_wx_set_freq(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	ret = ieee80211_wx_set_freq(priv->ieee80211, a, wrqu, b);

	up(&priv->wx_sem);
	return ret;
}

static int r8192_wx_get_name(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_name(priv->ieee80211, info, wrqu, extra);
}


static int r8192_wx_set_frag(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	if (wrqu->frag.disabled)
		priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
	else {
		if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
		    wrqu->frag.value > MAX_FRAG_THRESHOLD)
			return -EINVAL;

		priv->ieee80211->fts = wrqu->frag.value & ~0x1;
	}

	return 0;
}


static int r8192_wx_get_frag(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	wrqu->frag.value = priv->ieee80211->fts;
	wrqu->frag.fixed = 0;	/* no auto select */
	wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FRAG_THRESHOLD);

	return 0;
}


static int r8192_wx_set_wap(struct net_device *dev,
			 struct iw_request_info *info,
			 union iwreq_data *awrq,
			 char *extra)
{

	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);
//        struct sockaddr *temp = (struct sockaddr *)awrq;

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

#ifdef ENABLE_IPS
        down(&priv->ieee80211->ips_sem);
        IPSLeave(dev);
        up(&priv->ieee80211->ips_sem);
#endif
	ret = ieee80211_wx_set_wap(priv->ieee80211,info,awrq,extra);

	up(&priv->wx_sem);

	return ret;

}


static int r8192_wx_get_wap(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_wap(priv->ieee80211,info,wrqu,extra);
}


static int r8192_wx_get_enc(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_encode(priv->ieee80211, info, wrqu, key);
}

static int r8192_wx_set_enc(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int ret;

	struct ieee80211_device *ieee = priv->ieee80211;
	//u32 TargetContent;
	u32 hwkey[4]={0,0,0,0};
	u8 mask=0xff;
	u32 key_idx=0;
	u8 zero_addr[4][6] ={{0x00,0x00,0x00,0x00,0x00,0x00},
				{0x00,0x00,0x00,0x00,0x00,0x01},
				{0x00,0x00,0x00,0x00,0x00,0x02},
				{0x00,0x00,0x00,0x00,0x00,0x03} };
	int i;

	if (priv->bHwRadioOff)
		return 0;

       if(!priv->up) return -ENETDOWN;

        priv->ieee80211->wx_set_enc = 1;
#ifdef ENABLE_IPS
        down(&priv->ieee80211->ips_sem);
        IPSLeave(dev);
        up(&priv->ieee80211->ips_sem);
#endif

	down(&priv->wx_sem);

	RT_TRACE(COMP_SEC, "Setting SW wep key");
	ret = ieee80211_wx_set_encode(priv->ieee80211,info,wrqu,key);

	up(&priv->wx_sem);

	//sometimes, the length is zero while we do not type key value
	if(wrqu->encoding.length!=0){

		for(i=0 ; i<4 ; i++){
			hwkey[i] |=  key[4*i+0]&mask;
			if(i==1&&(4*i+1)==wrqu->encoding.length) mask=0x00;
			if(i==3&&(4*i+1)==wrqu->encoding.length) mask=0x00;
			hwkey[i] |= (key[4*i+1]&mask)<<8;
			hwkey[i] |= (key[4*i+2]&mask)<<16;
			hwkey[i] |= (key[4*i+3]&mask)<<24;
		}

		#define CONF_WEP40  0x4
		#define CONF_WEP104 0x14

		switch(wrqu->encoding.flags & IW_ENCODE_INDEX){
			case 0: key_idx = ieee->tx_keyidx; break;
			case 1:	key_idx = 0; break;
			case 2:	key_idx = 1; break;
			case 3:	key_idx = 2; break;
			case 4:	key_idx	= 3; break;
			default: break;
		}

		//printk("-------====>length:%d, key_idx:%d, flag:%x\n", wrqu->encoding.length, key_idx, wrqu->encoding.flags);
		if(wrqu->encoding.length==0x5){
		ieee->pairwise_key_type = KEY_TYPE_WEP40;
			EnableHWSecurityConfig8192(dev);
			setKey( dev,
				key_idx,                //EntryNo
				key_idx,                //KeyIndex
				KEY_TYPE_WEP40,         //KeyType
				zero_addr[key_idx],
				0,                      //DefaultKey
				hwkey);                 //KeyContent

#if 0
			if(key_idx == 0){

				//write_nic_byte(dev, SECR, 7);
				setKey( dev,
					4,                      //EntryNo
					key_idx,                      //KeyIndex
					KEY_TYPE_WEP40,        //KeyType
					broadcast_addr,         //addr
					0,                      //DefaultKey
					hwkey);                 //KeyContent
			}
#endif
		}

		else if(wrqu->encoding.length==0xd){
			ieee->pairwise_key_type = KEY_TYPE_WEP104;
				EnableHWSecurityConfig8192(dev);
			setKey( dev,
				key_idx,                //EntryNo
				key_idx,                //KeyIndex
				KEY_TYPE_WEP104,        //KeyType
				zero_addr[key_idx],
				0,                      //DefaultKey
				hwkey);                 //KeyContent
#if 0
			if(key_idx == 0){

				//write_nic_byte(dev, SECR, 7);
				setKey( dev,
					4,                      //EntryNo
					key_idx,                      //KeyIndex
					KEY_TYPE_WEP104,        //KeyType
					broadcast_addr,         //addr
					0,                      //DefaultKey
					hwkey);                 //KeyContent
			}
#endif
		}
		else printk("wrong type in WEP, not WEP40 and WEP104\n");


	}

#if 0
	//consider the setting different key index situation
	//wrqu->encoding.flags = 801 means that we set key with index "1"
	if(wrqu->encoding.length==0 && (wrqu->encoding.flags >>8) == 0x8 ){
		printk("===>1\n");
		//write_nic_byte(dev, SECR, 7);
		EnableHWSecurityConfig8192(dev);
		//copy wpa config from default key(key0~key3) to broadcast key(key5)
		//
		key_idx = (wrqu->encoding.flags & 0xf)-1 ;
		write_cam(dev, (4*6),   0xffff0000|read_cam(dev, key_idx*6) );
		write_cam(dev, (4*6)+1, 0xffffffff);
		write_cam(dev, (4*6)+2, read_cam(dev, (key_idx*6)+2) );
		write_cam(dev, (4*6)+3, read_cam(dev, (key_idx*6)+3) );
		write_cam(dev, (4*6)+4, read_cam(dev, (key_idx*6)+4) );
		write_cam(dev, (4*6)+5, read_cam(dev, (key_idx*6)+5) );
	}
#endif

	priv->ieee80211->wx_set_enc = 0;

	return ret;
}


static int r8192_wx_set_scan_type(struct net_device *dev, struct iw_request_info *aa, union
 iwreq_data *wrqu, char *p){

 	struct r8192_priv *priv = ieee80211_priv(dev);
	int *parms=(int*)p;
	int mode=parms[0];

	priv->ieee80211->active_scan = mode;

	return 1;
}


static int r8192_wx_set_retry(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int err = 0;

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	if (wrqu->retry.flags & IW_RETRY_LIFETIME ||
	    wrqu->retry.disabled){
		err = -EINVAL;
		goto exit;
	}
	if (!(wrqu->retry.flags & IW_RETRY_LIMIT)){
		err = -EINVAL;
		goto exit;
	}

	if(wrqu->retry.value > R8180_MAX_RETRY){
		err= -EINVAL;
		goto exit;
	}
	if (wrqu->retry.flags & IW_RETRY_MAX) {
		priv->retry_rts = wrqu->retry.value;
		DMESG("Setting retry for RTS/CTS data to %d", wrqu->retry.value);

	}else {
		priv->retry_data = wrqu->retry.value;
		DMESG("Setting retry for non RTS/CTS data to %d", wrqu->retry.value);
	}

	/* FIXME !
	 * We might try to write directly the TX config register
	 * or to restart just the (R)TX process.
	 * I'm unsure if whole reset is really needed
	 */

 	rtl8192_commit(dev);
	/*
	if(priv->up){
		rtl8180_rtx_disable(dev);
		rtl8180_rx_enable(dev);
		rtl8180_tx_enable(dev);

	}
	*/
exit:
	up(&priv->wx_sem);

	return err;
}

static int r8192_wx_get_retry(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);


	wrqu->retry.disabled = 0; /* can't be disabled */

	if ((wrqu->retry.flags & IW_RETRY_TYPE) ==
	    IW_RETRY_LIFETIME)
		return -EINVAL;

	if (wrqu->retry.flags & IW_RETRY_MAX) {
		wrqu->retry.flags = IW_RETRY_LIMIT & IW_RETRY_MAX;
		wrqu->retry.value = priv->retry_rts;
	} else {
		wrqu->retry.flags = IW_RETRY_LIMIT & IW_RETRY_MIN;
		wrqu->retry.value = priv->retry_data;
	}
	//DMESG("returning %d",wrqu->retry.value);


	return 0;
}

static int r8192_wx_get_sens(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	if(priv->rf_set_sens == NULL)
		return -1; /* we have not this support for this radio */
	wrqu->sens.value = priv->sens;
	return 0;
}


static int r8192_wx_set_sens(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{

	struct r8192_priv *priv = ieee80211_priv(dev);

	short err = 0;

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	//DMESG("attempt to set sensivity to %ddb",wrqu->sens.value);
	if(priv->rf_set_sens == NULL) {
		err= -1; /* we have not this support for this radio */
		goto exit;
	}
	if(priv->rf_set_sens(dev, wrqu->sens.value) == 0)
		priv->sens = wrqu->sens.value;
	else
		err= -EINVAL;

exit:
	up(&priv->wx_sem);

	return err;
}

#if (WIRELESS_EXT >= 18)
static int r8192_wx_set_enc_ext(struct net_device *dev,
                                        struct iw_request_info *info,
                                        union iwreq_data *wrqu, char *extra)
{
	int ret=0;
	struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device* ieee = priv->ieee80211;

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	priv->ieee80211->wx_set_enc = 1;

#ifdef ENABLE_IPS
        down(&priv->ieee80211->ips_sem);
        IPSLeave(dev);
        up(&priv->ieee80211->ips_sem);
#endif

	ret = ieee80211_wx_set_encode_ext(ieee, info, wrqu, extra);

	{
		u8 broadcast_addr[6] = {0xff,0xff,0xff,0xff,0xff,0xff};
		u8 zero[6] = {0};
		u32 key[4] = {0};
		struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
		struct iw_point *encoding = &wrqu->encoding;
#if 0
		static u8 CAM_CONST_ADDR[4][6] = {
			{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
			{0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
			{0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
			{0x00, 0x00, 0x00, 0x00, 0x00, 0x03}};
#endif
		u8 idx = 0, alg = 0, group = 0;
		if ((encoding->flags & IW_ENCODE_DISABLED) ||
		ext->alg == IW_ENCODE_ALG_NONE) //none is not allowed to use hwsec WB 2008.07.01
		{
			ieee->pairwise_key_type = ieee->group_key_type = KEY_TYPE_NA;
			CamResetAllEntry(dev);
			goto end_hw_sec;
		}
		alg =  (ext->alg == IW_ENCODE_ALG_CCMP)?KEY_TYPE_CCMP:ext->alg; // as IW_ENCODE_ALG_CCMP is defined to be 3 and KEY_TYPE_CCMP is defined to 4;
		idx = encoding->flags & IW_ENCODE_INDEX;
		if (idx)
			idx --;
		group = ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY;

		if ((!group) || (IW_MODE_ADHOC == ieee->iw_mode) || (alg ==  KEY_TYPE_WEP40))
		{
			if ((ext->key_len == 13) && (alg == KEY_TYPE_WEP40) )
				alg = KEY_TYPE_WEP104;
			ieee->pairwise_key_type = alg;
			EnableHWSecurityConfig8192(dev);
		}
		memcpy((u8*)key, ext->key, 16); //we only get 16 bytes key.why? WB 2008.7.1

		if ((alg & KEY_TYPE_WEP40) && (ieee->auth_mode !=2) )
		{
			if (ext->key_len == 13)
				ieee->pairwise_key_type = alg = KEY_TYPE_WEP104;
			setKey( dev,
					idx,//EntryNo
					idx, //KeyIndex
					alg,  //KeyType
					zero, //MacAddr
					0,              //DefaultKey
					key);           //KeyContent
		}
		else if (group)
		{
			ieee->group_key_type = alg;
			setKey( dev,
					idx,//EntryNo
					idx, //KeyIndex
					alg,  //KeyType
					broadcast_addr, //MacAddr
					0,              //DefaultKey
					key);           //KeyContent
		}
		else //pairwise key
		{
			if ((ieee->pairwise_key_type == KEY_TYPE_CCMP) && ieee->pHTInfo->bCurrentHTSupport){
							write_nic_byte(dev, 0x173, 1); //fix aes bug
			}
			setKey( dev,
					4,//EntryNo
					idx, //KeyIndex
					alg,  //KeyType
					(u8*)ieee->ap_mac_addr, //MacAddr
					0,              //DefaultKey
					key);           //KeyContent
		}


	}

end_hw_sec:
	priv->ieee80211->wx_set_enc = 0;
	up(&priv->wx_sem);
	return ret;

}
static int r8192_wx_set_auth(struct net_device *dev,
                                        struct iw_request_info *info,
                                        union iwreq_data *data, char *extra)
{
	int ret=0;
	//printk("====>%s()\n", __FUNCTION__);
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	ret = ieee80211_wx_set_auth(priv->ieee80211, info, &(data->param), extra);
	up(&priv->wx_sem);
	return ret;
}

static int r8192_wx_set_mlme(struct net_device *dev,
                                        struct iw_request_info *info,
                                        union iwreq_data *wrqu, char *extra)
{
	//printk("====>%s()\n", __FUNCTION__);

	int ret=0;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	ret = ieee80211_wx_set_mlme(priv->ieee80211, info, wrqu, extra);
	up(&priv->wx_sem);
	return ret;
}
#endif
static int r8192_wx_set_gen_ie(struct net_device *dev,
                                        struct iw_request_info *info,
                                        union iwreq_data *data, char *extra)
{
	   //printk("====>%s(), len:%d\n", __FUNCTION__, data->length);
	int ret=0;
        struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->bHwRadioOff)
		return 0;

        down(&priv->wx_sem);
        ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, data->data.length);
        up(&priv->wx_sem);
	//printk("<======%s(), ret:%d\n", __FUNCTION__, ret);
        return ret;
}

static int dummy(struct net_device *dev, struct iw_request_info *a,
		 union iwreq_data *wrqu,char *b)
{
	return -1;
}

// check ac/dc status with the help of user space application */
static int r8192_wx_adapter_power_status(struct net_device *dev,
		struct iw_request_info *info,
		union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
#ifdef ENABLE_LPS
	PRT_POWER_SAVE_CONTROL pPSC = (PRT_POWER_SAVE_CONTROL)(&(priv->ieee80211->PowerSaveControl));
	struct ieee80211_device* ieee = priv->ieee80211;
#endif
	down(&priv->wx_sem);

#ifdef ENABLE_LPS
	RT_TRACE(COMP_POWER, "%s(): %s\n",__FUNCTION__, (*extra ==  6)?"DC power":"AC power");
	// ieee->ps shall not be set under DC mode, otherwise it conflict
	// with Leisure power save mode setting.
	//
	if(*extra || priv->force_lps) {
		priv->ps_force = false;
		pPSC->bLeisurePs = true;
	} else {
		//LZM for PS-Poll AID issue. 090429
		if(priv->ieee80211->state == IEEE80211_LINKED)
			LeisurePSLeave(dev);

		priv->ps_force = true;
		pPSC->bLeisurePs = false;
		ieee->ps = *extra;
	}

#endif
	up(&priv->wx_sem);
	return 0;

}


static iw_handler r8192_wx_handlers[] =
{
        NULL,                     /* SIOCSIWCOMMIT */
        r8192_wx_get_name,   	  /* SIOCGIWNAME */
        dummy,                    /* SIOCSIWNWID */
        dummy,                    /* SIOCGIWNWID */
        r8192_wx_set_freq,        /* SIOCSIWFREQ */
        r8192_wx_get_freq,        /* SIOCGIWFREQ */
        r8192_wx_set_mode,        /* SIOCSIWMODE */
        r8192_wx_get_mode,        /* SIOCGIWMODE */
        r8192_wx_set_sens,        /* SIOCSIWSENS */
        r8192_wx_get_sens,        /* SIOCGIWSENS */
        NULL,                     /* SIOCSIWRANGE */
        rtl8180_wx_get_range,	  /* SIOCGIWRANGE */
        NULL,                     /* SIOCSIWPRIV */
        NULL,                     /* SIOCGIWPRIV */
        NULL,                     /* SIOCSIWSTATS */
        NULL,                     /* SIOCGIWSTATS */
        dummy,                    /* SIOCSIWSPY */
        dummy,                    /* SIOCGIWSPY */
        NULL,                     /* SIOCGIWTHRSPY */
        NULL,                     /* SIOCWIWTHRSPY */
        r8192_wx_set_wap,      	  /* SIOCSIWAP */
        r8192_wx_get_wap,         /* SIOCGIWAP */
#if (WIRELESS_EXT >= 18)
        r8192_wx_set_mlme,                     /* MLME-- */
#else
	 NULL,
#endif
        dummy,                     /* SIOCGIWAPLIST -- depricated */
        r8192_wx_set_scan,        /* SIOCSIWSCAN */
        r8192_wx_get_scan,        /* SIOCGIWSCAN */
        r8192_wx_set_essid,       /* SIOCSIWESSID */
        r8192_wx_get_essid,       /* SIOCGIWESSID */
        dummy,                    /* SIOCSIWNICKN */
        dummy,                    /* SIOCGIWNICKN */
        NULL,                     /* -- hole -- */
        NULL,                     /* -- hole -- */
        r8192_wx_set_rate,        /* SIOCSIWRATE */
        r8192_wx_get_rate,        /* SIOCGIWRATE */
        r8192_wx_set_rts,                    /* SIOCSIWRTS */
        r8192_wx_get_rts,                    /* SIOCGIWRTS */
        r8192_wx_set_frag,        /* SIOCSIWFRAG */
        r8192_wx_get_frag,        /* SIOCGIWFRAG */
        dummy,                    /* SIOCSIWTXPOW */
        dummy,                    /* SIOCGIWTXPOW */
        r8192_wx_set_retry,       /* SIOCSIWRETRY */
        r8192_wx_get_retry,       /* SIOCGIWRETRY */
        r8192_wx_set_enc,         /* SIOCSIWENCODE */
        r8192_wx_get_enc,         /* SIOCGIWENCODE */
        r8192_wx_set_power,                    /* SIOCSIWPOWER */
        r8192_wx_get_power,                    /* SIOCGIWPOWER */
	NULL,			/*---hole---*/
	NULL, 			/*---hole---*/
	r8192_wx_set_gen_ie,//NULL, 			/* SIOCSIWGENIE */
	NULL, 			/* SIOCSIWGENIE */
#if (WIRELESS_EXT >= 18)
	r8192_wx_set_auth,//NULL, 			/* SIOCSIWAUTH */
	NULL,//r8192_wx_get_auth,//NULL, 			/* SIOCSIWAUTH */
	r8192_wx_set_enc_ext, 			/* SIOCSIWENCODEEXT */
#else
	NULL,
	NULL,
	NULL,
#endif
	NULL,//r8192_wx_get_enc_ext,//NULL, 			/* SIOCSIWENCODEEXT */
	NULL, 			/* SIOCSIWPMKSA */
	NULL, 			 /*---hole---*/

};


static const struct iw_priv_args r8192_private_args[] = {

	{
		SIOCIWFIRSTPRIV + 0x0,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "badcrc"
	},

	{
		SIOCIWFIRSTPRIV + 0x1,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "activescan"

	},
	{
		SIOCIWFIRSTPRIV + 0x2,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rawtx"
	}
	,
	{
		SIOCIWFIRSTPRIV + 0x3,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "forcereset"

	}
	,
	{
		SIOCIWFIRSTPRIV + 0x4,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED|1, IW_PRIV_TYPE_NONE,
		"set_power"
	}

};


static iw_handler r8192_private_handler[] = {
	r8192_wx_set_crcmon,   /*SIOCIWSECONDPRIV*/
	r8192_wx_set_scan_type,
	r8192_wx_set_rawtx,
	r8192_wx_force_reset,
	r8192_wx_adapter_power_status,
};

//#if WIRELESS_EXT >= 17
struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
{
       struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device* ieee = priv->ieee80211;
	struct iw_statistics* wstats = &priv->wstats;
	int tmp_level = 0;
	int tmp_qual = 0;
	int tmp_noise = 0;
	if(ieee->state < IEEE80211_LINKED)
	{
		wstats->qual.qual = 0;
		wstats->qual.level = 0;
		wstats->qual.noise = 0;
		wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
		return wstats;
	}

       tmp_level = (&ieee->current_network)->stats.rssi;
	tmp_qual = (&ieee->current_network)->stats.signal;
	tmp_noise = (&ieee->current_network)->stats.noise;
	//printk("level:%d, qual:%d, noise:%d\n", tmp_level, tmp_qual, tmp_noise);

	wstats->qual.level = tmp_level;
	wstats->qual.qual = tmp_qual;
	wstats->qual.noise = tmp_noise;
	wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
	return wstats;
}
//#endif


struct iw_handler_def  r8192_wx_handlers_def={
	.standard = r8192_wx_handlers,
	.num_standard = sizeof(r8192_wx_handlers) / sizeof(iw_handler),
	.private = r8192_private_handler,
	.num_private = sizeof(r8192_private_handler) / sizeof(iw_handler),
 	.num_private_args = sizeof(r8192_private_args) / sizeof(struct iw_priv_args),
#if WIRELESS_EXT >= 17
	.get_wireless_stats = r8192_get_wireless_stats,
#endif
	.private_args = (struct iw_priv_args *)r8192_private_args,
};