[net-next-2.6.git] / drivers / staging / rtl8187se / ieee80211 / ieee80211_softmac_wx.c

/* IEEE 802.11 SoftMAC layer
 * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
 *
 * Mostly extracted from the rtl8180-sa2400 driver for the
 * in-kernel generic ieee802.11 stack.
 *
 * Some pieces of code might be stolen from ipw2100 driver
 * copyright of who own it's copyright ;-)
 *
 * PS wx handler mostly stolen from hostap, copyright who
 * own it's copyright ;-)
 *
 * released under the GPL
 */


#include "ieee80211.h"

/* FIXME: add A freqs */

const long ieee80211_wlan_frequencies[] = {
	2412, 2417, 2422, 2427,
	2432, 2437, 2442, 2447,
	2452, 2457, 2462, 2467,
	2472, 2484
};


int ieee80211_wx_set_freq(struct ieee80211_device *ieee, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	int ret;
	struct iw_freq *fwrq = & wrqu->freq;
//	printk("in %s\n",__func__);
	down(&ieee->wx_sem);

	if(ieee->iw_mode == IW_MODE_INFRA){
		ret = -EOPNOTSUPP;
		goto out;
	}

	/* if setting by freq convert to channel */
	if (fwrq->e == 1) {
		if ((fwrq->m >= (int) 2.412e8 &&
		     fwrq->m <= (int) 2.487e8)) {
			int f = fwrq->m / 100000;
			int c = 0;

			while ((c < 14) && (f != ieee80211_wlan_frequencies[c]))
				c++;

			/* hack to fall through */
			fwrq->e = 0;
			fwrq->m = c + 1;
		}
	}

	if (fwrq->e > 0 || fwrq->m > 14 || fwrq->m < 1 ){
		ret = -EOPNOTSUPP;
		goto out;

	}else { /* Set the channel */


		ieee->current_network.channel = fwrq->m;
		ieee->set_chan(ieee->dev, ieee->current_network.channel);

		if(ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
			if(ieee->state == IEEE80211_LINKED){

			ieee80211_stop_send_beacons(ieee);
			ieee80211_start_send_beacons(ieee);
			}
	}

	ret = 0;
out:
	up(&ieee->wx_sem);
	return ret;
}


int ieee80211_wx_get_freq(struct ieee80211_device *ieee,
			     struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct iw_freq *fwrq = & wrqu->freq;

	if (ieee->current_network.channel == 0)
		return -1;

	fwrq->m = ieee->current_network.channel;
	fwrq->e = 0;

	return 0;
}

int ieee80211_wx_get_wap(struct ieee80211_device *ieee,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *extra)
{
	unsigned long flags;

	wrqu->ap_addr.sa_family = ARPHRD_ETHER;

	if (ieee->iw_mode == IW_MODE_MONITOR)
		return -1;

	/* We want avoid to give to the user inconsistent infos*/
	spin_lock_irqsave(&ieee->lock, flags);

	if (ieee->state != IEEE80211_LINKED &&
		ieee->state != IEEE80211_LINKED_SCANNING &&
		ieee->wap_set == 0)

		memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
	else
		memcpy(wrqu->ap_addr.sa_data,
		       ieee->current_network.bssid, ETH_ALEN);

	spin_unlock_irqrestore(&ieee->lock, flags);

	return 0;
}


int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
			 struct iw_request_info *info,
			 union iwreq_data *awrq,
			 char *extra)
{

	int ret = 0;
	u8 zero[] = {0,0,0,0,0,0};
	unsigned long flags;

	short ifup = ieee->proto_started;//dev->flags & IFF_UP;
	struct sockaddr *temp = (struct sockaddr *)awrq;

	//printk("=======Set WAP:");
	ieee->sync_scan_hurryup = 1;

	down(&ieee->wx_sem);
	/* use ifconfig hw ether */
	if (ieee->iw_mode == IW_MODE_MASTER){
		ret = -1;
		goto out;
	}

	if (temp->sa_family != ARPHRD_ETHER){
		ret = -EINVAL;
		goto out;
	}

	if (ifup)
		ieee80211_stop_protocol(ieee);

	/* just to avoid to give inconsistent infos in the
	 * get wx method. not really needed otherwise
	 */
	spin_lock_irqsave(&ieee->lock, flags);

	memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
	ieee->wap_set = memcmp(temp->sa_data, zero,ETH_ALEN)!=0;
	//printk(" %x:%x:%x:%x:%x:%x\n", ieee->current_network.bssid[0],ieee->current_network.bssid[1],ieee->current_network.bssid[2],ieee->current_network.bssid[3],ieee->current_network.bssid[4],ieee->current_network.bssid[5]);

	spin_unlock_irqrestore(&ieee->lock, flags);

	if (ifup)
		ieee80211_start_protocol(ieee);

out:
	up(&ieee->wx_sem);
	return ret;
}

 int ieee80211_wx_get_essid(struct ieee80211_device *ieee, struct iw_request_info *a,union iwreq_data *wrqu,char *b)
{
	int len,ret = 0;
	unsigned long flags;

	if (ieee->iw_mode == IW_MODE_MONITOR)
		return -1;

	/* We want avoid to give to the user inconsistent infos*/
	spin_lock_irqsave(&ieee->lock, flags);

	if (ieee->current_network.ssid[0] == '\0' ||
		ieee->current_network.ssid_len == 0){
		ret = -1;
		goto out;
	}

	if (ieee->state != IEEE80211_LINKED &&
		ieee->state != IEEE80211_LINKED_SCANNING &&
		ieee->ssid_set == 0){
		ret = -1;
		goto out;
	}
	len = ieee->current_network.ssid_len;
	wrqu->essid.length = len;
	strncpy(b,ieee->current_network.ssid,len);
	wrqu->essid.flags = 1;

out:
	spin_unlock_irqrestore(&ieee->lock, flags);

	return ret;

}

int ieee80211_wx_set_rate(struct ieee80211_device *ieee,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{

	u32 target_rate = wrqu->bitrate.value;

	//added by lizhaoming for auto mode
	if(target_rate == -1){
	ieee->rate = 110;
	} else {
	ieee->rate = target_rate/100000;
	}
	//FIXME: we might want to limit rate also in management protocols.
	return 0;
}


int ieee80211_wx_get_rate(struct ieee80211_device *ieee,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{

	wrqu->bitrate.value = ieee->rate * 100000;

	return 0;
}

int ieee80211_wx_set_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{

	ieee->sync_scan_hurryup = 1;

	down(&ieee->wx_sem);

	if (wrqu->mode == ieee->iw_mode)
		goto out;

	if (wrqu->mode == IW_MODE_MONITOR){

		ieee->dev->type = ARPHRD_IEEE80211;
	}else{
		ieee->dev->type = ARPHRD_ETHER;
	}

	if (!ieee->proto_started){
		ieee->iw_mode = wrqu->mode;
	}else{
		ieee80211_stop_protocol(ieee);
		ieee->iw_mode = wrqu->mode;
		ieee80211_start_protocol(ieee);
	}

out:
	up(&ieee->wx_sem);
	return 0;
}


#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
void ieee80211_wx_sync_scan_wq(struct work_struct *work)
{
	struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wx_sync_scan_wq);
#else
void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee)
{
#endif
//void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee)
//{
	short chan;

	chan = ieee->current_network.channel;

	netif_carrier_off(ieee->dev);

	if (ieee->data_hard_stop)
		ieee->data_hard_stop(ieee->dev);

	ieee80211_stop_send_beacons(ieee);

	ieee->state = IEEE80211_LINKED_SCANNING;
	ieee->link_change(ieee->dev);

	ieee80211_start_scan_syncro(ieee);

	ieee->set_chan(ieee->dev, chan);

	ieee->state = IEEE80211_LINKED;
	ieee->link_change(ieee->dev);

	if (ieee->data_hard_resume)
		ieee->data_hard_resume(ieee->dev);

	if(ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
		ieee80211_start_send_beacons(ieee);

	netif_carrier_on(ieee->dev);

	//YJ,add,080828, In prevent of lossing ping packet during scanning
	//ieee80211_sta_ps_send_null_frame(ieee, false);
	//YJ,add,080828,end

	up(&ieee->wx_sem);

}

int ieee80211_wx_set_scan(struct ieee80211_device *ieee, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	int ret = 0;

	down(&ieee->wx_sem);

	if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)){
		ret = -1;
		goto out;
	}
	//YJ,add,080828
	//In prevent of lossing ping packet during scanning
	//ieee80211_sta_ps_send_null_frame(ieee, true);
	//YJ,add,080828,end

	if ( ieee->state == IEEE80211_LINKED){
		queue_work(ieee->wq, &ieee->wx_sync_scan_wq);
		/* intentionally forget to up sem */
		return 0;
	}

out:
	up(&ieee->wx_sem);
	return ret;
}

int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *extra)
{

	int ret=0,len;
	short proto_started;
	unsigned long flags;

	ieee->sync_scan_hurryup = 1;

	down(&ieee->wx_sem);

	proto_started = ieee->proto_started;

	if (wrqu->essid.length > IW_ESSID_MAX_SIZE){
		ret= -E2BIG;
		goto out;
	}

	if (ieee->iw_mode == IW_MODE_MONITOR){
		ret= -1;
		goto out;
	}

	if(proto_started)
		ieee80211_stop_protocol(ieee);

	/* this is just to be sure that the GET wx callback
	 * has consisten infos. not needed otherwise
	 */
	spin_lock_irqsave(&ieee->lock, flags);

	if (wrqu->essid.flags && wrqu->essid.length) {
//YJ,modified,080819
#if LINUX_VERSION_CODE <  KERNEL_VERSION(2,6,20)
		len = ((wrqu->essid.length-1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length-1) : IW_ESSID_MAX_SIZE;
#else
		len = (wrqu->essid.length < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length) : IW_ESSID_MAX_SIZE;
#endif
		memset(ieee->current_network.ssid, 0, ieee->current_network.ssid_len); //YJ,add,080819
		strncpy(ieee->current_network.ssid, extra, len);
		ieee->current_network.ssid_len = len;
		ieee->ssid_set = 1;
//YJ,modified,080819,end

		//YJ,add,080819,for hidden ap
		if(len == 0){
			memset(ieee->current_network.bssid, 0, ETH_ALEN);
			ieee->current_network.capability = 0;
		}
		//YJ,add,080819,for hidden ap,end
	}
	else{
		ieee->ssid_set = 0;
		ieee->current_network.ssid[0] = '\0';
		ieee->current_network.ssid_len = 0;
	}
	//printk("==========set essid %s!\n",ieee->current_network.ssid);
	spin_unlock_irqrestore(&ieee->lock, flags);

	if (proto_started)
		ieee80211_start_protocol(ieee);
out:
	up(&ieee->wx_sem);
	return ret;
}

 int ieee80211_wx_get_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{

	wrqu->mode = ieee->iw_mode;
	return 0;
}

 int ieee80211_wx_set_rawtx(struct ieee80211_device *ieee,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{

	int *parms = (int *)extra;
	int enable = (parms[0] > 0);
	short prev = ieee->raw_tx;

	down(&ieee->wx_sem);

	if(enable)
		ieee->raw_tx = 1;
	else
		ieee->raw_tx = 0;

	printk(KERN_INFO"raw TX is %s\n",
	      ieee->raw_tx ? "enabled" : "disabled");

	if(ieee->iw_mode == IW_MODE_MONITOR)
	{
		if(prev == 0 && ieee->raw_tx){
			if (ieee->data_hard_resume)
				ieee->data_hard_resume(ieee->dev);

			netif_carrier_on(ieee->dev);
		}

		if(prev && ieee->raw_tx == 1)
			netif_carrier_off(ieee->dev);
	}

	up(&ieee->wx_sem);

	return 0;
}

int ieee80211_wx_get_name(struct ieee80211_device *ieee,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	strcpy(wrqu->name, "802.11");
	if(ieee->modulation & IEEE80211_CCK_MODULATION){
		strcat(wrqu->name, "b");
		if(ieee->modulation & IEEE80211_OFDM_MODULATION)
			strcat(wrqu->name, "/g");
	}else if(ieee->modulation & IEEE80211_OFDM_MODULATION)
		strcat(wrqu->name, "g");

	if((ieee->state == IEEE80211_LINKED) ||
		(ieee->state == IEEE80211_LINKED_SCANNING))
		strcat(wrqu->name," linked");
	else if(ieee->state != IEEE80211_NOLINK)
		strcat(wrqu->name," link..");


	return 0;
}


/* this is mostly stolen from hostap */
int ieee80211_wx_set_power(struct ieee80211_device *ieee,
				 struct iw_request_info *info,
				 union iwreq_data *wrqu, char *extra)
{
	int ret = 0;

	if(
		(!ieee->sta_wake_up) ||
		(!ieee->ps_request_tx_ack) ||
		(!ieee->enter_sleep_state) ||
		(!ieee->ps_is_queue_empty)){

		printk("ERROR. PS mode is tryied to be use but\
driver missed a callback\n\n");

		return -1;
	}

	down(&ieee->wx_sem);

	if (wrqu->power.disabled){
		ieee->ps = IEEE80211_PS_DISABLED;

		goto exit;
	}
	switch (wrqu->power.flags & IW_POWER_MODE) {
	case IW_POWER_UNICAST_R:
		ieee->ps = IEEE80211_PS_UNICAST;

		break;
	case IW_POWER_ALL_R:
		ieee->ps = IEEE80211_PS_UNICAST | IEEE80211_PS_MBCAST;
		break;

	case IW_POWER_ON:
		ieee->ps = IEEE80211_PS_DISABLED;
		break;

	default:
		ret = -EINVAL;
		goto exit;
	}

	if (wrqu->power.flags & IW_POWER_TIMEOUT) {

		ieee->ps_timeout = wrqu->power.value / 1000;
		printk("Timeout %d\n",ieee->ps_timeout);
	}

	if (wrqu->power.flags & IW_POWER_PERIOD) {

		ret = -EOPNOTSUPP;
		goto exit;
		//wrq->value / 1024;

	}
exit:
	up(&ieee->wx_sem);
	return ret;

}

/* this is stolen from hostap */
int ieee80211_wx_get_power(struct ieee80211_device *ieee,
				 struct iw_request_info *info,
				 union iwreq_data *wrqu, char *extra)
{
	int ret =0;

	down(&ieee->wx_sem);

	if(ieee->ps == IEEE80211_PS_DISABLED){
		wrqu->power.disabled = 1;
		goto exit;
	}

	wrqu->power.disabled = 0;

//	if ((wrqu->power.flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
		wrqu->power.flags = IW_POWER_TIMEOUT;
		wrqu->power.value = ieee->ps_timeout * 1000;
//	} else {
//		ret = -EOPNOTSUPP;
//		goto exit;
		//wrqu->power.flags = IW_POWER_PERIOD;
		//wrqu->power.value = ieee->current_network.dtim_period *
		//	ieee->current_network.beacon_interval * 1024;
//	}


	if (ieee->ps & IEEE80211_PS_MBCAST)
		wrqu->power.flags |= IW_POWER_ALL_R;
	else
		wrqu->power.flags |= IW_POWER_UNICAST_R;

exit:
	up(&ieee->wx_sem);
	return ret;

}

#if 0
EXPORT_SYMBOL(ieee80211_wx_get_essid);
EXPORT_SYMBOL(ieee80211_wx_set_essid);
EXPORT_SYMBOL(ieee80211_wx_set_rate);
EXPORT_SYMBOL(ieee80211_wx_get_rate);
EXPORT_SYMBOL(ieee80211_wx_set_wap);
EXPORT_SYMBOL(ieee80211_wx_get_wap);
EXPORT_SYMBOL(ieee80211_wx_set_mode);
EXPORT_SYMBOL(ieee80211_wx_get_mode);
EXPORT_SYMBOL(ieee80211_wx_set_scan);
EXPORT_SYMBOL(ieee80211_wx_get_freq);
EXPORT_SYMBOL(ieee80211_wx_set_freq);
EXPORT_SYMBOL(ieee80211_wx_set_rawtx);
EXPORT_SYMBOL(ieee80211_wx_get_name);
EXPORT_SYMBOL(ieee80211_wx_set_power);
EXPORT_SYMBOL(ieee80211_wx_get_power);
EXPORT_SYMBOL(ieee80211_wlan_frequencies);
#endif
Commit	Line	Data
c8d86be3 GKH	1	/* IEEE 802.11 SoftMAC layer
	2	* Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
	3	*
	4	* Mostly extracted from the rtl8180-sa2400 driver for the
	5	* in-kernel generic ieee802.11 stack.
	6	*
	7	* Some pieces of code might be stolen from ipw2100 driver
	8	* copyright of who own it's copyright ;-)
	9	*
	10	* PS wx handler mostly stolen from hostap, copyright who
	11	* own it's copyright ;-)
	12	*
	13	* released under the GPL
	14	*/
	15
	16
	17	#include "ieee80211.h"
	18
	19	/* FIXME: add A freqs */
	20
	21	const long ieee80211_wlan_frequencies[] = {
	22	2412, 2417, 2422, 2427,
	23	2432, 2437, 2442, 2447,
	24	2452, 2457, 2462, 2467,
	25	2472, 2484
	26	};
	27
	28
	29	int ieee80211_wx_set_freq(struct ieee80211_device ieee, struct iw_request_info a,
	30	union iwreq_data wrqu, char b)
	31	{
	32	int ret;
	33	struct iw_freq *fwrq = & wrqu->freq;
d599edca	34	// printk("in %s\n",__func__);
c8d86be3 GKH	35	down(&ieee->wx_sem);
	36
	37	if(ieee->iw_mode == IW_MODE_INFRA){
	38	ret = -EOPNOTSUPP;
	39	goto out;
	40	}
	41
	42	/* if setting by freq convert to channel */
	43	if (fwrq->e == 1) {
	44	if ((fwrq->m >= (int) 2.412e8 &&
	45	fwrq->m <= (int) 2.487e8)) {
	46	int f = fwrq->m / 100000;
	47	int c = 0;
	48
	49	while ((c < 14) && (f != ieee80211_wlan_frequencies[c]))
	50	c++;
	51
	52	/* hack to fall through */
	53	fwrq->e = 0;
	54	fwrq->m = c + 1;
	55	}
	56	}
	57
	58	if (fwrq->e > 0 \|\| fwrq->m > 14 \|\| fwrq->m < 1 ){
	59	ret = -EOPNOTSUPP;
	60	goto out;
	61
	62	}else { /* Set the channel */
	63
	64
	65	ieee->current_network.channel = fwrq->m;
	66	ieee->set_chan(ieee->dev, ieee->current_network.channel);
	67
	68	if(ieee->iw_mode == IW_MODE_ADHOC \|\| ieee->iw_mode == IW_MODE_MASTER)
	69	if(ieee->state == IEEE80211_LINKED){
	70
	71	ieee80211_stop_send_beacons(ieee);
	72	ieee80211_start_send_beacons(ieee);
	73	}
	74	}
	75
	76	ret = 0;
	77	out:
	78	up(&ieee->wx_sem);
	79	return ret;
	80	}
	81
	82
	83	int ieee80211_wx_get_freq(struct ieee80211_device *ieee,
	84	struct iw_request_info *a,
	85	union iwreq_data wrqu, char b)
	86	{
	87	struct iw_freq *fwrq = & wrqu->freq;
	88
	89	if (ieee->current_network.channel == 0)
	90	return -1;
	91
	92	fwrq->m = ieee->current_network.channel;
	93	fwrq->e = 0;
	94
	95	return 0;
	96	}
	97
	98	int ieee80211_wx_get_wap(struct ieee80211_device *ieee,
99	struct iw_request_info *info,
100	union iwreq_data wrqu, char extra)
101	{
102	unsigned long flags;
103
104	wrqu->ap_addr.sa_family = ARPHRD_ETHER;
105
106	if (ieee->iw_mode == IW_MODE_MONITOR)
107	return -1;
108
109	/* We want avoid to give to the user inconsistent infos*/
110	spin_lock_irqsave(&ieee->lock, flags);
111
112	if (ieee->state != IEEE80211_LINKED &&
113	ieee->state != IEEE80211_LINKED_SCANNING &&
114	ieee->wap_set == 0)
115
116	memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
117	else
118	memcpy(wrqu->ap_addr.sa_data,
119	ieee->current_network.bssid, ETH_ALEN);
120
121	spin_unlock_irqrestore(&ieee->lock, flags);
122
123	return 0;
124	}
125
126
127	int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
128	struct iw_request_info *info,
129	union iwreq_data *awrq,
130	char *extra)
131	{
132
133	int ret = 0;
134	u8 zero[] = {0,0,0,0,0,0};
135	unsigned long flags;
136
137	short ifup = ieee->proto_started;//dev->flags & IFF_UP;
138	struct sockaddr temp = (struct sockaddr )awrq;
139
140	//printk("=======Set WAP:");
141	ieee->sync_scan_hurryup = 1;
142
143	down(&ieee->wx_sem);
144	/* use ifconfig hw ether */
145	if (ieee->iw_mode == IW_MODE_MASTER){
146	ret = -1;
147	goto out;
148	}
149
150	if (temp->sa_family != ARPHRD_ETHER){
151	ret = -EINVAL;
152	goto out;
153	}
154
155	if (ifup)
156	ieee80211_stop_protocol(ieee);
157
158	/* just to avoid to give inconsistent infos in the
159	* get wx method. not really needed otherwise
160	*/
161	spin_lock_irqsave(&ieee->lock, flags);
162
163	memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
164	ieee->wap_set = memcmp(temp->sa_data, zero,ETH_ALEN)!=0;
165	//printk(" %x:%x:%x:%x:%x:%x\n", ieee->current_network.bssid[0],ieee->current_network.bssid[1],ieee->current_network.bssid[2],ieee->current_network.bssid[3],ieee->current_network.bssid[4],ieee->current_network.bssid[5]);
166
167	spin_unlock_irqrestore(&ieee->lock, flags);
168
169	if (ifup)
170	ieee80211_start_protocol(ieee);
171
172	out:
173	up(&ieee->wx_sem);
174	return ret;
175	}
176
177	int ieee80211_wx_get_essid(struct ieee80211_device ieee, struct iw_request_info a,union iwreq_data wrqu,char b)
178	{
179	int len,ret = 0;
180	unsigned long flags;
181
182	if (ieee->iw_mode == IW_MODE_MONITOR)
183	return -1;
184
185	/* We want avoid to give to the user inconsistent infos*/
186	spin_lock_irqsave(&ieee->lock, flags);
187
188	if (ieee->current_network.ssid[0] == '\0' \|\|
189	ieee->current_network.ssid_len == 0){
190	ret = -1;
191	goto out;
192	}
193
194	if (ieee->state != IEEE80211_LINKED &&
195	ieee->state != IEEE80211_LINKED_SCANNING &&
196	ieee->ssid_set == 0){
197	ret = -1;
198	goto out;
199	}
200	len = ieee->current_network.ssid_len;
201	wrqu->essid.length = len;
202	strncpy(b,ieee->current_network.ssid,len);
203	wrqu->essid.flags = 1;
204
205	out:
206	spin_unlock_irqrestore(&ieee->lock, flags);
207
208	return ret;
209
210	}
211
212	int ieee80211_wx_set_rate(struct ieee80211_device *ieee,
213	struct iw_request_info *info,
214	union iwreq_data wrqu, char extra)
215	{
216
217	u32 target_rate = wrqu->bitrate.value;
218
219	//added by lizhaoming for auto mode
220	if(target_rate == -1){
221	ieee->rate = 110;
222	} else {
223	ieee->rate = target_rate/100000;
224	}
225	//FIXME: we might want to limit rate also in management protocols.
226	return 0;
227	}
228
229
230
231	int ieee80211_wx_get_rate(struct ieee80211_device *ieee,
232	struct iw_request_info *info,
233	union iwreq_data wrqu, char extra)
234	{
235
236	wrqu->bitrate.value = ieee->rate * 100000;
237
238	return 0;
239	}
240
241	int ieee80211_wx_set_mode(struct ieee80211_device ieee, struct iw_request_info a,
242	union iwreq_data wrqu, char b)
243	{
244
245	ieee->sync_scan_hurryup = 1;
246
247	down(&ieee->wx_sem);
248
249	if (wrqu->mode == ieee->iw_mode)
250	goto out;
251
252	if (wrqu->mode == IW_MODE_MONITOR){
253
254	ieee->dev->type = ARPHRD_IEEE80211;
255	}else{
256	ieee->dev->type = ARPHRD_ETHER;
257	}
258
259	if (!ieee->proto_started){
260	ieee->iw_mode = wrqu->mode;
261	}else{
262	ieee80211_stop_protocol(ieee);
263	ieee->iw_mode = wrqu->mode;
264	ieee80211_start_protocol(ieee);
265	}
266
267	out:
268	up(&ieee->wx_sem);
269	return 0;
270	}
271
272
273	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
274	void ieee80211_wx_sync_scan_wq(struct work_struct *work)
275	{
276	struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wx_sync_scan_wq);
277	#else
278	void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee)
279	{
280	#endif
281	//void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee)
282	//{
283	short chan;
284
285	chan = ieee->current_network.channel;
286
287	netif_carrier_off(ieee->dev);
288
289	if (ieee->data_hard_stop)
290	ieee->data_hard_stop(ieee->dev);
291
292	ieee80211_stop_send_beacons(ieee);
293
294	ieee->state = IEEE80211_LINKED_SCANNING;
295	ieee->link_change(ieee->dev);
296
297	ieee80211_start_scan_syncro(ieee);
298
299	ieee->set_chan(ieee->dev, chan);
300
301	ieee->state = IEEE80211_LINKED;
302	ieee->link_change(ieee->dev);
303
304	if (ieee->data_hard_resume)
305	ieee->data_hard_resume(ieee->dev);
306
307	if(ieee->iw_mode == IW_MODE_ADHOC \|\| ieee->iw_mode == IW_MODE_MASTER)
308	ieee80211_start_send_beacons(ieee);
309
310	netif_carrier_on(ieee->dev);
311
312	//YJ,add,080828, In prevent of lossing ping packet during scanning
313	//ieee80211_sta_ps_send_null_frame(ieee, false);
314	//YJ,add,080828,end
315
316	up(&ieee->wx_sem);
317
318	}
319
320	int ieee80211_wx_set_scan(struct ieee80211_device ieee, struct iw_request_info a,
321	union iwreq_data wrqu, char b)
322	{
323	int ret = 0;
324
325	down(&ieee->wx_sem);
326
327	if (ieee->iw_mode == IW_MODE_MONITOR \|\| !(ieee->proto_started)){
328	ret = -1;
329	goto out;
330	}
331	//YJ,add,080828
332	//In prevent of lossing ping packet during scanning
333	//ieee80211_sta_ps_send_null_frame(ieee, true);
334	//YJ,add,080828,end
335
336	if ( ieee->state == IEEE80211_LINKED){
337	queue_work(ieee->wq, &ieee->wx_sync_scan_wq);
338	/* intentionally forget to up sem */
339	return 0;
340	}
341
342	out:
343	up(&ieee->wx_sem);
344	return ret;
345	}
346
347	int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
348	struct iw_request_info *a,
349	union iwreq_data wrqu, char extra)
350	{
351
352	int ret=0,len;
353	short proto_started;
354	unsigned long flags;
355
356	ieee->sync_scan_hurryup = 1;
357
358	down(&ieee->wx_sem);
359
360	proto_started = ieee->proto_started;
361
362	if (wrqu->essid.length > IW_ESSID_MAX_SIZE){
363	ret= -E2BIG;
364	goto out;
365	}
366
367	if (ieee->iw_mode == IW_MODE_MONITOR){
368	ret= -1;
369	goto out;
370	}
371
372	if(proto_started)
373	ieee80211_stop_protocol(ieee);
374
375	/* this is just to be sure that the GET wx callback
376	* has consisten infos. not needed otherwise
377	*/
378	spin_lock_irqsave(&ieee->lock, flags);
379
380	if (wrqu->essid.flags && wrqu->essid.length) {
381	//YJ,modified,080819
382	#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
383	len = ((wrqu->essid.length-1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length-1) : IW_ESSID_MAX_SIZE;
384	#else
385	len = (wrqu->essid.length < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length) : IW_ESSID_MAX_SIZE;
386	#endif
387	memset(ieee->current_network.ssid, 0, ieee->current_network.ssid_len); //YJ,add,080819
388	strncpy(ieee->current_network.ssid, extra, len);
389	ieee->current_network.ssid_len = len;
390	ieee->ssid_set = 1;
391	//YJ,modified,080819,end
392
393	//YJ,add,080819,for hidden ap
394	if(len == 0){
395	memset(ieee->current_network.bssid, 0, ETH_ALEN);
396	ieee->current_network.capability = 0;
397	}
398	//YJ,add,080819,for hidden ap,end
399	}
400	else{
401	ieee->ssid_set = 0;
402	ieee->current_network.ssid[0] = '\0';
403	ieee->current_network.ssid_len = 0;
404	}
405	//printk("==========set essid %s!\n",ieee->current_network.ssid);
406	spin_unlock_irqrestore(&ieee->lock, flags);
407
408	if (proto_started)
409	ieee80211_start_protocol(ieee);
410	out:
411	up(&ieee->wx_sem);
412	return ret;
413	}
414
415	int ieee80211_wx_get_mode(struct ieee80211_device ieee, struct iw_request_info a,
416	union iwreq_data wrqu, char b)
417	{
418
419	wrqu->mode = ieee->iw_mode;
420	return 0;
421	}
422
423	int ieee80211_wx_set_rawtx(struct ieee80211_device *ieee,
424	struct iw_request_info *info,
425	union iwreq_data wrqu, char extra)
426	{
427
428	int parms = (int )extra;
429	int enable = (parms[0] > 0);
430	short prev = ieee->raw_tx;
431
432	down(&ieee->wx_sem);
433
434	if(enable)
435	ieee->raw_tx = 1;
436	else
437	ieee->raw_tx = 0;
438
439	printk(KERN_INFO"raw TX is %s\n",
440	ieee->raw_tx ? "enabled" : "disabled");
441
442	if(ieee->iw_mode == IW_MODE_MONITOR)
443	{
444	if(prev == 0 && ieee->raw_tx){
445	if (ieee->data_hard_resume)
446	ieee->data_hard_resume(ieee->dev);
447
448	netif_carrier_on(ieee->dev);
449	}
450
451	if(prev && ieee->raw_tx == 1)
452	netif_carrier_off(ieee->dev);
453	}
454
455	up(&ieee->wx_sem);
456
457	return 0;
458	}
459
460	int ieee80211_wx_get_name(struct ieee80211_device *ieee,
461	struct iw_request_info *info,
462	union iwreq_data wrqu, char extra)
463	{
464	strcpy(wrqu->name, "802.11");
465	if(ieee->modulation & IEEE80211_CCK_MODULATION){
466	strcat(wrqu->name, "b");
467	if(ieee->modulation & IEEE80211_OFDM_MODULATION)
468	strcat(wrqu->name, "/g");
469	}else if(ieee->modulation & IEEE80211_OFDM_MODULATION)
470	strcat(wrqu->name, "g");
471
472	if((ieee->state == IEEE80211_LINKED) \|\|
473	(ieee->state == IEEE80211_LINKED_SCANNING))
474	strcat(wrqu->name," linked");
475	else if(ieee->state != IEEE80211_NOLINK)
476	strcat(wrqu->name," link..");
477
478
479	return 0;
480	}
481
482
483	/* this is mostly stolen from hostap */
484	int ieee80211_wx_set_power(struct ieee80211_device *ieee,
485	struct iw_request_info *info,
486	union iwreq_data wrqu, char extra)
487	{
488	int ret = 0;
489
490	if(
491	(!ieee->sta_wake_up) \|\|
492	(!ieee->ps_request_tx_ack) \|\|
493	(!ieee->enter_sleep_state) \|\|
494	(!ieee->ps_is_queue_empty)){
495
496	printk("ERROR. PS mode is tryied to be use but\
497	driver missed a callback\n\n");
498
499	return -1;
500	}
501
502	down(&ieee->wx_sem);
503
504	if (wrqu->power.disabled){
505	ieee->ps = IEEE80211_PS_DISABLED;
506
507	goto exit;
508	}
509	switch (wrqu->power.flags & IW_POWER_MODE) {
510	case IW_POWER_UNICAST_R:
511	ieee->ps = IEEE80211_PS_UNICAST;
512
513	break;
514	case IW_POWER_ALL_R:
515	ieee->ps = IEEE80211_PS_UNICAST \| IEEE80211_PS_MBCAST;
516	break;
517
518	case IW_POWER_ON:
519	ieee->ps = IEEE80211_PS_DISABLED;
520	break;
521
522	default:
523	ret = -EINVAL;
524	goto exit;
525	}
526
527	if (wrqu->power.flags & IW_POWER_TIMEOUT) {
528
529	ieee->ps_timeout = wrqu->power.value / 1000;
530	printk("Timeout %d\n",ieee->ps_timeout);
531	}
532
533	if (wrqu->power.flags & IW_POWER_PERIOD) {
534
535	ret = -EOPNOTSUPP;
536	goto exit;
537	//wrq->value / 1024;
538
539	}
540	exit:
541	up(&ieee->wx_sem);
542	return ret;
543
544	}
545
546	/* this is stolen from hostap */
547	int ieee80211_wx_get_power(struct ieee80211_device *ieee,
548	struct iw_request_info *info,
549	union iwreq_data wrqu, char extra)
550	{
551	int ret =0;
552
553	down(&ieee->wx_sem);
554
555	if(ieee->ps == IEEE80211_PS_DISABLED){
556	wrqu->power.disabled = 1;
557	goto exit;
558	}
559
560	wrqu->power.disabled = 0;
561
562	// if ((wrqu->power.flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
563	wrqu->power.flags = IW_POWER_TIMEOUT;
564	wrqu->power.value = ieee->ps_timeout * 1000;
565	// } else {
566	// ret = -EOPNOTSUPP;
567	// goto exit;
568	//wrqu->power.flags = IW_POWER_PERIOD;
569	//wrqu->power.value = ieee->current_network.dtim_period *
570	// ieee->current_network.beacon_interval * 1024;
571	// }
572
573
574	if (ieee->ps & IEEE80211_PS_MBCAST)
575	wrqu->power.flags \|= IW_POWER_ALL_R;
576	else
577	wrqu->power.flags \|= IW_POWER_UNICAST_R;
578
579	exit:
580	up(&ieee->wx_sem);
581	return ret;
582
583	}
584
585	#if 0
586	EXPORT_SYMBOL(ieee80211_wx_get_essid);
587	EXPORT_SYMBOL(ieee80211_wx_set_essid);
588	EXPORT_SYMBOL(ieee80211_wx_set_rate);
589	EXPORT_SYMBOL(ieee80211_wx_get_rate);
590	EXPORT_SYMBOL(ieee80211_wx_set_wap);
591	EXPORT_SYMBOL(ieee80211_wx_get_wap);
592	EXPORT_SYMBOL(ieee80211_wx_set_mode);
593	EXPORT_SYMBOL(ieee80211_wx_get_mode);
594	EXPORT_SYMBOL(ieee80211_wx_set_scan);
595	EXPORT_SYMBOL(ieee80211_wx_get_freq);
596	EXPORT_SYMBOL(ieee80211_wx_set_freq);
597	EXPORT_SYMBOL(ieee80211_wx_set_rawtx);
598	EXPORT_SYMBOL(ieee80211_wx_get_name);
599	EXPORT_SYMBOL(ieee80211_wx_set_power);
600	EXPORT_SYMBOL(ieee80211_wx_get_power);
601	EXPORT_SYMBOL(ieee80211_wlan_frequencies);
602	#endif