/*
	This file contains wireless extension handlers.

	This is part of rtl8180 OpenSource driver.
	Copyright (C) Andrea Merello 2004-2005  <andrea.merello@gmail.com>
	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 thanks the Authors of those projects and the Ndiswrapper
	project Authors.
*/


#include "r8180.h"
#include "r8180_hw.h"

#include <net/iw_handler.h>
#include "ieee80211/dot11d.h"

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

#define RATE_COUNT ARRAY_SIZE(rtl8180_rates)

static CHANNEL_LIST DefaultChannelPlan[] = {
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64}, 19},		/* FCC */
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},						/* IC */
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},	/* ETSI	*/
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},	/* Spain. Change to ETSI. */
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},	/* France. Change to ETSI. */
	{{14, 36, 40, 44, 48, 52, 56, 60, 64}, 9},						/* MKK */
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22},	/* MKK1	*/
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21},	/* Israel */
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 34, 38, 42, 46}, 17},			/* For 11a , TELEC */
	{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14}					/* For Global Domain. 1-11:active scan, 12-14 passive scan.*/	/* +YJ, 080626 */
};
static int r8180_wx_get_freq(struct net_device *dev,
			     struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

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


static int r8180_wx_set_key(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	struct iw_point *erq = &(wrqu->encoding);

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	if (erq->length > 0) {
		u32 *tkey = (u32 *) key;
		priv->key0[0] = tkey[0];
		priv->key0[1] = tkey[1];
		priv->key0[2] = tkey[2];
		priv->key0[3] = tkey[3] & 0xff;
		DMESG("Setting wep key to %x %x %x %x",
		      tkey[0], tkey[1], tkey[2], tkey[3]);
		rtl8180_set_hw_wep(dev);
	}
	return 0;
}


static int r8180_wx_set_beaconinterval(struct net_device *dev,
				       struct iw_request_info *aa,
				       union iwreq_data *wrqu, char *b)
{
	int *parms = (int *)b;
	int bi = parms[0];

	struct r8180_priv *priv = ieee80211_priv(dev);

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	DMESG("setting beacon interval to %x", bi);

	priv->ieee80211->current_network.beacon_interval = bi;
	rtl8180_commit(dev);
	up(&priv->wx_sem);

	return 0;
}


static int r8180_wx_get_mode(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_mode(priv->ieee80211, a, wrqu, b);
}


static int r8180_wx_get_rate(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_rate(priv->ieee80211, info, wrqu, extra);
}


static int r8180_wx_set_rate(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8180_priv *priv = ieee80211_priv(dev);


	if (priv->ieee80211->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 r8180_wx_set_crcmon(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int *parms = (int *)extra;
	int enable = (parms[0] > 0);
	short prev = priv->crcmon;


	if (priv->ieee80211->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 r8180_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret;


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	if (priv->bInactivePs)	{
		if (wrqu->mode == IW_MODE_ADHOC)
			IPSLeave(dev);
	}
	ret = ieee80211_wx_set_mode(priv->ieee80211, a, wrqu, b);

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

/* YJ,add,080819,for hidden ap */
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;
};
/* YJ,add,080819,for hidden ap */


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 r8180_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 = 5 * 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->pm_capa = 0;

	range->we_version_compiled = WIRELESS_EXT;
	range->we_version_source = 16;

		range->num_channels = 14;

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

		/* Include only legal frequencies for some countries */
		if ((GET_DOT11D_INFO(priv->ieee80211)->channel_map)[i+1]) {
				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->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
						IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;

	return 0;
}


static int r8180_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret;
	struct ieee80211_device *ieee = priv->ieee80211;


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	if (wrqu->data.flags & IW_SCAN_THIS_ESSID)	{
		struct iw_scan_req *req = (struct iw_scan_req *)b;
		if (req->essid_len)		{
			ieee->current_network.ssid_len = req->essid_len;
			memcpy(ieee->current_network.ssid, req->essid, req->essid_len);
		}
	}

	down(&priv->wx_sem);
	if (priv->up)	{
		priv->ieee80211->actscanning = true;
		if (priv->bInactivePs && (priv->ieee80211->state != IEEE80211_LINKED))	{
			IPSLeave(dev);
		ieee80211_softmac_ips_scan_syncro(priv->ieee80211);
			ret = 0;
		}	else	{
			/* prevent scan in BusyTraffic */
			/* FIXME: Need to consider last scan time */
			if ((priv->link_detect.bBusyTraffic) && (true))	{
				ret = 0;
				printk("Now traffic is busy, please try later!\n");
			}	else
				/* prevent scan in BusyTraffic,end */
				ret = ieee80211_wx_set_scan(priv->ieee80211, a, wrqu, b);
		}
	}	else
			ret = -1;

	up(&priv->wx_sem);

	return ret;
}


static int r8180_wx_get_scan(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{

	int ret;
	struct r8180_priv *priv = ieee80211_priv(dev);

	down(&priv->wx_sem);
	if (priv->up)
		ret = ieee80211_wx_get_scan(priv->ieee80211, a, wrqu, b);
	else
		ret = -1;

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


static int r8180_wx_set_essid(struct net_device *dev,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *b)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

	int ret;

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	if (priv->bInactivePs)
		IPSLeave(dev);

	ret = ieee80211_wx_set_essid(priv->ieee80211, a, wrqu, b);

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


static int r8180_wx_get_essid(struct net_device *dev,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *b)
{
	int ret;
	struct r8180_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 r8180_wx_set_freq(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	int ret;
	struct r8180_priv *priv = ieee80211_priv(dev);


	if (priv->ieee80211->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 r8180_wx_get_name(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	return ieee80211_wx_get_name(priv->ieee80211, info, wrqu, extra);
}

static int r8180_wx_set_frag(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

	if (priv->ieee80211->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 r8180_wx_get_frag(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_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 r8180_wx_set_wap(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *awrq, char *extra)
{
	int ret;
	struct r8180_priv *priv = ieee80211_priv(dev);

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	ret = ieee80211_wx_set_wap(priv->ieee80211, info, awrq, extra);

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

}


static int r8180_wx_get_wap(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

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


static int r8180_wx_set_enc(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret;

	if (priv->ieee80211->bHwRadioOff)
		return 0;


	down(&priv->wx_sem);

	if (priv->hw_wep)
		ret = r8180_wx_set_key(dev, info, wrqu, key);
	else	{
		DMESG("Setting SW wep key");
		ret = ieee80211_wx_set_encode(priv->ieee80211, info, wrqu, key);
	}

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


static int r8180_wx_get_enc(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

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


static int r8180_wx_set_scan_type(struct net_device *dev,
				  struct iw_request_info *aa,
				  union	iwreq_data *wrqu, char *p)
{

	struct r8180_priv *priv = ieee80211_priv(dev);
	int *parms = (int *)p;
	int mode = parms[0];

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	priv->ieee80211->active_scan = mode;

	return 1;
}

static int r8180_wx_set_retry(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int err = 0;

	if (priv->ieee80211->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
	 */

	rtl8180_commit(dev);
exit:
	up(&priv->wx_sem);

	return err;
}

static int r8180_wx_get_retry(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu, char *extra)
{
	struct r8180_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;
	}

	return 0;
}

static int r8180_wx_get_sens(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_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 r8180_wx_set_sens(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{

	struct r8180_priv *priv = ieee80211_priv(dev);

	short err = 0;

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	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 r8180_wx_set_rawtx(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret;

	if (priv->ieee80211->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 r8180_wx_get_power(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8180_priv *priv = ieee80211_priv(dev);

	down(&priv->wx_sem);

	ret = ieee80211_wx_get_power(priv->ieee80211, info, wrqu, extra);

	up(&priv->wx_sem);

	return ret;
}

static int r8180_wx_set_power(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8180_priv *priv = ieee80211_priv(dev);


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	printk("=>>>>>>>>>>=============================>set power:%d, %d!\n", wrqu->power.disabled, wrqu->power.flags);
	if (wrqu->power.disabled == 0) {
		wrqu->power.flags |= IW_POWER_ALL_R;
		wrqu->power.flags |= IW_POWER_TIMEOUT;
		wrqu->power.value = 1000;
	}

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

	up(&priv->wx_sem);

	return ret;
}

static int r8180_wx_set_rts(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	if (wrqu->rts.disabled)
		priv->rts = DEFAULT_RTS_THRESHOLD;
	else {
		if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
		    wrqu->rts.value > MAX_RTS_THRESHOLD)
			return -EINVAL;

		priv->rts = wrqu->rts.value;
	}

	return 0;
}
static int r8180_wx_get_rts(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);


	wrqu->rts.value = priv->rts;
	wrqu->rts.fixed = 0;	/* no auto select */
	wrqu->rts.disabled = (wrqu->rts.value == 0);

	return 0;
}
static int dummy(struct net_device *dev, struct iw_request_info *a,
		 union iwreq_data *wrqu, char *b)
{
	return -1;
}

static int r8180_wx_get_iwmode(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device *ieee;
	int ret = 0;


	down(&priv->wx_sem);

	ieee = priv->ieee80211;

	strcpy(extra, "802.11");
	if (ieee->modulation & IEEE80211_CCK_MODULATION) {
		strcat(extra, "b");
		if (ieee->modulation & IEEE80211_OFDM_MODULATION)
			strcat(extra, "/g");
	} else if (ieee->modulation & IEEE80211_OFDM_MODULATION)
		strcat(extra, "g");

	up(&priv->wx_sem);

	return ret;
}
static int r8180_wx_set_iwmode(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device *ieee = priv->ieee80211;
	int *param = (int *)extra;
	int ret = 0;
	int modulation = 0, mode = 0;


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);

	if (*param == 1) {
		modulation |= IEEE80211_CCK_MODULATION;
		mode = IEEE_B;
	printk(KERN_INFO "B mode!\n");
	} else if (*param == 2) {
		modulation |= IEEE80211_OFDM_MODULATION;
		mode = IEEE_G;
	printk(KERN_INFO "G mode!\n");
	} else if (*param == 3) {
		modulation |= IEEE80211_CCK_MODULATION;
		modulation |= IEEE80211_OFDM_MODULATION;
		mode = IEEE_B|IEEE_G;
	printk(KERN_INFO "B/G mode!\n");
	}

	if (ieee->proto_started) {
		ieee80211_stop_protocol(ieee);
		ieee->mode = mode;
		ieee->modulation = modulation;
		ieee80211_start_protocol(ieee);
	} else {
		ieee->mode = mode;
		ieee->modulation = modulation;
	}

	up(&priv->wx_sem);

	return ret;
}
static int r8180_wx_get_preamble(struct net_device *dev,
				 struct iw_request_info *info,
				 union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);


	down(&priv->wx_sem);


	*extra = (char) priv->plcp_preamble_mode;	/* 0:auto 1:short 2:long */
	up(&priv->wx_sem);

	return 0;
}
static int r8180_wx_set_preamble(struct net_device *dev,
				 struct iw_request_info *info,
				 union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret = 0;


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	if (*extra < 0 || *extra > 2)
		ret = -1;
	else
		priv->plcp_preamble_mode = *((short *)extra);


	up(&priv->wx_sem);

	return ret;
}
static int r8180_wx_get_siglevel(struct net_device *dev,
				 struct iw_request_info *info,
				 union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret = 0;


	down(&priv->wx_sem);
	/* Modify by hikaru 6.5 */
	*((int *)extra) = priv->wstats.qual.level;/*for interface test ,it should be the priv->wstats.qual.level; */


	up(&priv->wx_sem);

	return ret;
}
static int r8180_wx_get_sigqual(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret = 0;


	down(&priv->wx_sem);
	/* Modify by hikaru 6.5	*/
	*((int *)extra) = priv->wstats.qual.qual;/* for interface test ,it should be the priv->wstats.qual.qual; */


	up(&priv->wx_sem);

	return ret;
}
static int r8180_wx_reset_stats(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	down(&priv->wx_sem);

	priv->stats.txrdu = 0;
	priv->stats.rxrdu = 0;
	priv->stats.rxnolast = 0;
	priv->stats.rxnodata = 0;
	priv->stats.rxnopointer = 0;
	priv->stats.txnperr = 0;
	priv->stats.txresumed = 0;
	priv->stats.rxerr = 0;
	priv->stats.rxoverflow = 0;
	priv->stats.rxint = 0;

	priv->stats.txnpokint = 0;
	priv->stats.txhpokint = 0;
	priv->stats.txhperr = 0;
	priv->stats.ints = 0;
	priv->stats.shints = 0;
	priv->stats.txoverflow = 0;
	priv->stats.rxdmafail = 0;
	priv->stats.txbeacon = 0;
	priv->stats.txbeaconerr = 0;
	priv->stats.txlpokint = 0;
	priv->stats.txlperr = 0;
	priv->stats.txretry = 0;/* 20060601 */
	priv->stats.rxcrcerrmin = 0 ;
	priv->stats.rxcrcerrmid = 0;
	priv->stats.rxcrcerrmax = 0;
	priv->stats.rxicverr = 0;

	up(&priv->wx_sem);

	return 0;

}
static int r8180_wx_radio_on(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

	if (priv->ieee80211->bHwRadioOff)
		return 0;


	down(&priv->wx_sem);
	priv->rf_wakeup(dev);

	up(&priv->wx_sem);

	return 0;

}

static int r8180_wx_radio_off(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);

	if (priv->ieee80211->bHwRadioOff)
		return 0;


	down(&priv->wx_sem);
	priv->rf_sleep(dev);

	up(&priv->wx_sem);

	return 0;

}
static int r8180_wx_get_channelplan(struct net_device *dev,
				    struct iw_request_info *info,
				    union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);


	down(&priv->wx_sem);
	*extra = priv->channel_plan;


	up(&priv->wx_sem);

	return 0;
}
static int r8180_wx_set_channelplan(struct net_device *dev,
				    struct iw_request_info *info,
				    union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int *val = (int *)extra;
	int i;
	printk("-----in fun %s\n", __func__);

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	/* unsigned long flags; */
	down(&priv->wx_sem);
	if (DefaultChannelPlan[*val].Len != 0)	{
		priv->channel_plan = *val;
		/* Clear old channel map 8 */
		for (i = 1; i <= MAX_CHANNEL_NUMBER; i++)
			GET_DOT11D_INFO(priv->ieee80211)->channel_map[i] = 0;

		/* Set new channel map */
		for (i = 1; i <= DefaultChannelPlan[*val].Len; i++)
			GET_DOT11D_INFO(priv->ieee80211)->channel_map[DefaultChannelPlan[*val].Channel[i-1]] = 1;

	}
	up(&priv->wx_sem);

	return 0;
}

static int r8180_wx_get_version(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	/* struct ieee80211_device *ieee; */

	down(&priv->wx_sem);
	strcpy(extra, "1020.0808");
	up(&priv->wx_sem);

	return 0;
}

/* added by amy 080818 */
/*receive datarate from user typing valid rate is from 2 to 108 (1 - 54M), if input 0, return to normal rate adaptive. */
static int r8180_wx_set_forcerate(struct net_device *dev,
				  struct iw_request_info *info,
				  union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	u8 forcerate = *extra;

	down(&priv->wx_sem);

	printk("==============>%s(): forcerate is %d\n", __func__, forcerate);
	if ((forcerate == 2) || (forcerate == 4) || (forcerate == 11) || (forcerate == 22) || (forcerate == 12) ||
		(forcerate == 18) || (forcerate == 24) || (forcerate == 36) || (forcerate == 48) || (forcerate == 72) ||
		(forcerate == 96) || (forcerate == 108)) {
		priv->ForcedDataRate = 1;
		priv->ieee80211->rate = forcerate * 5;
	}	else if (forcerate == 0)	{
		priv->ForcedDataRate = 0;
		printk("OK! return rate adaptive\n");
	}	else
			printk("ERR: wrong rate\n");
	up(&priv->wx_sem);
	return 0;
}

static int r8180_wx_set_enc_ext(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{

	struct r8180_priv *priv = ieee80211_priv(dev);

	int ret = 0;

	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
	ret = ieee80211_wx_set_encode_ext(priv->ieee80211, info, wrqu, extra);
	up(&priv->wx_sem);
	return ret;

}
static int r8180_wx_set_auth(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8180_priv *priv = ieee80211_priv(dev);
	int ret = 0;

	if (priv->ieee80211->bHwRadioOff)
		return 0;

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

static int r8180_wx_set_mlme(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret = 0;
	struct r8180_priv *priv = ieee80211_priv(dev);


	if (priv->ieee80211->bHwRadioOff)
		return 0;


	down(&priv->wx_sem);
#if 1
	ret = ieee80211_wx_set_mlme(priv->ieee80211, info, wrqu, extra);
#endif
	up(&priv->wx_sem);
	return ret;
}
static int r8180_wx_set_gen_ie(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	int ret = 0;
		struct r8180_priv *priv = ieee80211_priv(dev);


	if (priv->ieee80211->bHwRadioOff)
		return 0;

	down(&priv->wx_sem);
#if 1
	ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, wrqu->data.length);
#endif
	up(&priv->wx_sem);
	return ret;


}

static const iw_handler r8180_wx_handlers[] =	{
	IW_HANDLER(SIOCGIWNAME,		r8180_wx_get_name),
	IW_HANDLER(SIOCSIWNWID,		dummy),
	IW_HANDLER(SIOCGIWNWID,		dummy),
	IW_HANDLER(SIOCSIWFREQ,		r8180_wx_set_freq),
	IW_HANDLER(SIOCGIWFREQ,		r8180_wx_get_freq),
	IW_HANDLER(SIOCSIWMODE, 	r8180_wx_set_mode),
	IW_HANDLER(SIOCGIWMODE,		r8180_wx_get_mode),
	IW_HANDLER(SIOCSIWSENS,		r8180_wx_set_sens),
	IW_HANDLER(SIOCGIWSENS,		r8180_wx_get_sens),
	IW_HANDLER(SIOCGIWRANGE,	rtl8180_wx_get_range),
	IW_HANDLER(SIOCSIWSPY,		dummy),
	IW_HANDLER(SIOCGIWSPY,		dummy),
	IW_HANDLER(SIOCSIWAP,		r8180_wx_set_wap),
	IW_HANDLER(SIOCGIWAP,		r8180_wx_get_wap),
	IW_HANDLER(SIOCSIWMLME,		r8180_wx_set_mlme),
	IW_HANDLER(SIOCGIWAPLIST,	dummy),		/* deprecated */
	IW_HANDLER(SIOCSIWSCAN,		r8180_wx_set_scan),
	IW_HANDLER(SIOCGIWSCAN,		r8180_wx_get_scan),
	IW_HANDLER(SIOCSIWESSID,	r8180_wx_set_essid),
	IW_HANDLER(SIOCGIWESSID,	r8180_wx_get_essid),
	IW_HANDLER(SIOCSIWNICKN,	dummy),
	IW_HANDLER(SIOCGIWNICKN,	dummy),
	IW_HANDLER(SIOCSIWRATE,		r8180_wx_set_rate),
	IW_HANDLER(SIOCGIWRATE,		r8180_wx_get_rate),
	IW_HANDLER(SIOCSIWRTS,		r8180_wx_set_rts),
	IW_HANDLER(SIOCGIWRTS,		r8180_wx_get_rts),
	IW_HANDLER(SIOCSIWFRAG,		r8180_wx_set_frag),
	IW_HANDLER(SIOCGIWFRAG,		r8180_wx_get_frag),
	IW_HANDLER(SIOCSIWTXPOW,	dummy),
	IW_HANDLER(SIOCGIWTXPOW,	dummy),
	IW_HANDLER(SIOCSIWRETRY,	r8180_wx_set_retry),
	IW_HANDLER(SIOCGIWRETRY,	r8180_wx_get_retry),
	IW_HANDLER(SIOCSIWENCODE,	r8180_wx_set_enc),
	IW_HANDLER(SIOCGIWENCODE,	r8180_wx_get_enc),
	IW_HANDLER(SIOCSIWPOWER,	r8180_wx_set_power),
	IW_HANDLER(SIOCGIWPOWER,	r8180_wx_get_power),
	IW_HANDLER(SIOCSIWGENIE,	r8180_wx_set_gen_ie),
	IW_HANDLER(SIOCSIWAUTH,		r8180_wx_set_auth),
	IW_HANDLER(SIOCSIWENCODEEXT,	r8180_wx_set_enc_ext),
};

static const struct iw_priv_args r8180_private_args[] = {
	{
		SIOCIWFIRSTPRIV + 0x0,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "badcrc"
	},
	{	SIOCIWFIRSTPRIV + 0x1,
		0, 0, "dummy"

	},
	{
		SIOCIWFIRSTPRIV + 0x2,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "beaconint"
	},
	{	SIOCIWFIRSTPRIV + 0x3,
		0, 0, "dummy"

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

	},
	{	SIOCIWFIRSTPRIV + 0x5,
		0, 0, "dummy"

	},
	{
		SIOCIWFIRSTPRIV + 0x6,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rawtx"

	},
	{	SIOCIWFIRSTPRIV + 0x7,
		0, 0, "dummy"

	},
	{
		SIOCIWFIRSTPRIV + 0x8,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "setiwmode"
	},
	{
		SIOCIWFIRSTPRIV + 0x9,
		0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 32, "getiwmode"
	},
	{
		SIOCIWFIRSTPRIV + 0xA,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "setpreamble"
	},
	{
		SIOCIWFIRSTPRIV + 0xB,
		0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getpreamble"
	},
	{	SIOCIWFIRSTPRIV + 0xC,
		0, 0, "dummy"
	},
	{
		SIOCIWFIRSTPRIV + 0xD,
		0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getrssi"
	},
	{	SIOCIWFIRSTPRIV + 0xE,
		0, 0, "dummy"
	},
	{
		SIOCIWFIRSTPRIV + 0xF,
		0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getlinkqual"
	},
	{
		SIOCIWFIRSTPRIV + 0x10,
		0, 0, "resetstats"
	},
	{
		SIOCIWFIRSTPRIV + 0x11,
		0, 0, "dummy"
	},
	{
		SIOCIWFIRSTPRIV + 0x12,
		0, 0, "radioon"
	},
	{
		SIOCIWFIRSTPRIV + 0x13,
		0, 0, "radiooff"
	},
	{
		SIOCIWFIRSTPRIV + 0x14,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "setchannel"
	},
	{
		SIOCIWFIRSTPRIV + 0x15,
		0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getchannel"
	},
	{
		SIOCIWFIRSTPRIV + 0x16,
		0, 0, "dummy"
	},
	{
		SIOCIWFIRSTPRIV + 0x17,
		0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 32, "getversion"
	},
	{
		SIOCIWFIRSTPRIV + 0x18,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "setrate"
	},
};


static iw_handler r8180_private_handler[] = {
	r8180_wx_set_crcmon, /*SIOCIWSECONDPRIV*/
	dummy,
	r8180_wx_set_beaconinterval,
	dummy,
	/* r8180_wx_set_monitor_type, */
	r8180_wx_set_scan_type,
	dummy,
	r8180_wx_set_rawtx,
	dummy,
	r8180_wx_set_iwmode,
	r8180_wx_get_iwmode,
	r8180_wx_set_preamble,
	r8180_wx_get_preamble,
	dummy,
	r8180_wx_get_siglevel,
	dummy,
	r8180_wx_get_sigqual,
	r8180_wx_reset_stats,
	dummy,/* r8180_wx_get_stats */
	r8180_wx_radio_on,
	r8180_wx_radio_off,
	r8180_wx_set_channelplan,
	r8180_wx_get_channelplan,
	dummy,
	r8180_wx_get_version,
	r8180_wx_set_forcerate,
};

static inline int is_same_network(struct ieee80211_network *src,
				  struct ieee80211_network *dst,
				  struct ieee80211_device *ieee)
{
		/* A network is only a duplicate if the channel, BSSID, ESSID
		 * and the capability field (in particular IBSS and BSS) all match.
		 * We treat all <hidden> with the same BSSID and channel
		 * as one network
		 */
		if (src->channel != dst->channel)
			return 0;

		if (memcmp(src->bssid, dst->bssid, ETH_ALEN) != 0)
			return 0;

		if (ieee->iw_mode != IW_MODE_INFRA) {
			if (src->ssid_len != dst->ssid_len)
				return 0;
			if (memcmp(src->ssid, dst->ssid, src->ssid_len) != 0)
				return 0;
		}

		if ((src->capability & WLAN_CAPABILITY_IBSS) !=
		    (dst->capability & WLAN_CAPABILITY_IBSS))
			return 0;
		if ((src->capability & WLAN_CAPABILITY_BSS) !=
		    (dst->capability & WLAN_CAPABILITY_BSS))
			return 0;

		return 1;
}

/* WB modified to show signal to GUI on 18-01-2008 */
static struct iw_statistics *r8180_get_wireless_stats(struct net_device *dev)
{
	struct r8180_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.signal;
	tmp_qual = (&ieee->current_network)->stats.signalstrength;
	tmp_noise = (&ieee->current_network)->stats.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  r8180_wx_handlers_def = {
	.standard = r8180_wx_handlers,
	.num_standard = ARRAY_SIZE(r8180_wx_handlers),
	.private = r8180_private_handler,
	.num_private = ARRAY_SIZE(r8180_private_handler),
	.num_private_args = sizeof(r8180_private_args) / sizeof(struct iw_priv_args),
	.get_wireless_stats = r8180_get_wireless_stats,
	.private_args = (struct iw_priv_args *)r8180_private_args,
};