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

                if (priv->PowerSaveControl.bInactivePs) {
                        if(rtState == eRfOff){
                                if(priv->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(priv);
                                        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 */

        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;

        range->enc_capa = IW_ENC_CAPA_WPA|IW_ENC_CAPA_WPA2|
                          IW_ENC_CAPA_CIPHER_TKIP|IW_ENC_CAPA_CIPHER_CCMP;

        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->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->PowerSaveControl.bInactivePs) {
                        if(rtState == eRfOff){
                                if(priv->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(priv);
                                        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->eRFPowerState;
        down(&priv->wx_sem);

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

        down(&priv->wx_sem);

        RT_TRACE(COMP_SEC, "Setting SW wep key\n");
        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(priv);
                        setKey(priv, key_idx, key_idx, KEY_TYPE_WEP40,
                               zero_addr[key_idx], 0, hwkey);
                }

                else if(wrqu->encoding.length==0xd){
                        ieee->pairwise_key_type = KEY_TYPE_WEP104;
                                EnableHWSecurityConfig8192(priv);
                        setKey(priv, key_idx, key_idx, KEY_TYPE_WEP104,
                               zero_addr[key_idx], 0, hwkey);
                }
                else printk("wrong type in WEP, not WEP40 and WEP104\n");
        }

        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(priv);
        /*
        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;
}

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(priv);
        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;
                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(priv);
                        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(priv);
                }
                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(priv, idx, idx, alg, zero, 0, key);
                }
                else if (group)
                {
                        ieee->group_key_type = alg;
                        setKey(priv, idx, idx, alg, broadcast_addr, 0, key);
                }
                else //pairwise key
                {
                        if ((ieee->pairwise_key_type == KEY_TYPE_CCMP) && ieee->pHTInfo->bCurrentHTSupport){
                                                        write_nic_byte(priv, 0x173, 1); //fix aes bug
                        }
                        setKey(priv, 4, idx, alg,
                               (u8*)ieee->ap_mac_addr, 0, key);
                }


        }

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;
}

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 = &priv->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(priv->ieee80211);

                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 */
        r8192_wx_set_mlme,        /* MLME-- */
        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 */
        r8192_wx_set_auth,//NULL,                       /* SIOCSIWAUTH */
        NULL,//r8192_wx_get_auth,//NULL,                        /* SIOCSIWAUTH */
        r8192_wx_set_enc_ext,                   /* SIOCSIWENCODEEXT */
        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,
};

static 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;
}


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),
        .get_wireless_stats = r8192_get_wireless_stats,
        .private_args = (struct iw_priv_args *)r8192_private_args,
};