65a4378471
This patch should allow the driver to consume a lot less power. Signed-off-by: david woo <xinhua_wu@realsil.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
701 lines
16 KiB
C
701 lines
16 KiB
C
/* IEEE 802.11 SoftMAC layer
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* Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
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*
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* Mostly extracted from the rtl8180-sa2400 driver for the
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* in-kernel generic ieee802.11 stack.
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*
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* Some pieces of code might be stolen from ipw2100 driver
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* copyright of who own it's copyright ;-)
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*
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* PS wx handler mostly stolen from hostap, copyright who
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* own it's copyright ;-)
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*
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* released under the GPL
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*/
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#include "ieee80211.h"
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#ifdef ENABLE_DOT11D
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#include "dot11d.h"
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#endif
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/* FIXME: add A freqs */
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const long ieee80211_wlan_frequencies[] = {
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2412, 2417, 2422, 2427,
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2432, 2437, 2442, 2447,
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2452, 2457, 2462, 2467,
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2472, 2484
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};
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int ieee80211_wx_set_freq(struct ieee80211_device *ieee, struct iw_request_info *a,
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union iwreq_data *wrqu, char *b)
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{
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int ret;
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struct iw_freq *fwrq = & wrqu->freq;
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down(&ieee->wx_sem);
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if(ieee->iw_mode == IW_MODE_INFRA){
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ret = -EOPNOTSUPP;
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goto out;
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}
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/* if setting by freq convert to channel */
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if (fwrq->e == 1) {
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if ((fwrq->m >= (int) 2.412e8 &&
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fwrq->m <= (int) 2.487e8)) {
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int f = fwrq->m / 100000;
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int c = 0;
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while ((c < 14) && (f != ieee80211_wlan_frequencies[c]))
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c++;
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/* hack to fall through */
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fwrq->e = 0;
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fwrq->m = c + 1;
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}
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}
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if (fwrq->e > 0 || fwrq->m > 14 || fwrq->m < 1 ){
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ret = -EOPNOTSUPP;
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goto out;
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}else { /* Set the channel */
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#ifdef ENABLE_DOT11D
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if (!(GET_DOT11D_INFO(ieee)->channel_map)[fwrq->m]) {
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ret = -EINVAL;
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goto out;
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}
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#endif
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ieee->current_network.channel = fwrq->m;
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ieee->set_chan(ieee->dev, ieee->current_network.channel);
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if(ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
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if(ieee->state == IEEE80211_LINKED){
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ieee80211_stop_send_beacons(ieee);
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ieee80211_start_send_beacons(ieee);
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}
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}
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ret = 0;
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out:
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up(&ieee->wx_sem);
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return ret;
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}
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int ieee80211_wx_get_freq(struct ieee80211_device *ieee,
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struct iw_request_info *a,
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union iwreq_data *wrqu, char *b)
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{
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struct iw_freq *fwrq = & wrqu->freq;
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if (ieee->current_network.channel == 0)
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return -1;
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//NM 0.7.0 will not accept channel any more.
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fwrq->m = ieee80211_wlan_frequencies[ieee->current_network.channel-1] * 100000;
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fwrq->e = 1;
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// fwrq->m = ieee->current_network.channel;
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// fwrq->e = 0;
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return 0;
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}
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int ieee80211_wx_get_wap(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra)
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{
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unsigned long flags;
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wrqu->ap_addr.sa_family = ARPHRD_ETHER;
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if (ieee->iw_mode == IW_MODE_MONITOR)
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return -1;
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/* We want avoid to give to the user inconsistent infos*/
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spin_lock_irqsave(&ieee->lock, flags);
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if (ieee->state != IEEE80211_LINKED &&
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ieee->state != IEEE80211_LINKED_SCANNING &&
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ieee->wap_set == 0)
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memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
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else
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memcpy(wrqu->ap_addr.sa_data,
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ieee->current_network.bssid, ETH_ALEN);
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spin_unlock_irqrestore(&ieee->lock, flags);
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return 0;
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}
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int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *awrq,
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char *extra)
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{
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int ret = 0;
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u8 zero[] = {0,0,0,0,0,0};
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unsigned long flags;
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short ifup = ieee->proto_started;//dev->flags & IFF_UP;
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struct sockaddr *temp = (struct sockaddr *)awrq;
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ieee->sync_scan_hurryup = 1;
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down(&ieee->wx_sem);
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/* use ifconfig hw ether */
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if (ieee->iw_mode == IW_MODE_MASTER){
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ret = -1;
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goto out;
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}
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if (temp->sa_family != ARPHRD_ETHER){
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ret = -EINVAL;
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goto out;
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}
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if (ifup)
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ieee80211_stop_protocol(ieee,true);
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/* just to avoid to give inconsistent infos in the
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* get wx method. not really needed otherwise
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*/
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spin_lock_irqsave(&ieee->lock, flags);
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memcpy(ieee->current_network.bssid, temp->sa_data, ETH_ALEN);
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ieee->wap_set = memcmp(temp->sa_data, zero,ETH_ALEN)!=0;
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spin_unlock_irqrestore(&ieee->lock, flags);
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if (ifup)
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ieee80211_start_protocol(ieee);
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out:
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up(&ieee->wx_sem);
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return ret;
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}
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int ieee80211_wx_get_essid(struct ieee80211_device *ieee, struct iw_request_info *a,union iwreq_data *wrqu,char *b)
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{
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int len,ret = 0;
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unsigned long flags;
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if (ieee->iw_mode == IW_MODE_MONITOR)
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return -1;
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/* We want avoid to give to the user inconsistent infos*/
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spin_lock_irqsave(&ieee->lock, flags);
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if (ieee->current_network.ssid[0] == '\0' ||
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ieee->current_network.ssid_len == 0){
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ret = -1;
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goto out;
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}
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if (ieee->state != IEEE80211_LINKED &&
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ieee->state != IEEE80211_LINKED_SCANNING &&
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ieee->ssid_set == 0){
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ret = -1;
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goto out;
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}
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len = ieee->current_network.ssid_len;
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wrqu->essid.length = len;
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strncpy(b,ieee->current_network.ssid,len);
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wrqu->essid.flags = 1;
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out:
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spin_unlock_irqrestore(&ieee->lock, flags);
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return ret;
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}
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int ieee80211_wx_set_rate(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra)
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{
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u32 target_rate = wrqu->bitrate.value;
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ieee->rate = target_rate/100000;
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//FIXME: we might want to limit rate also in management protocols.
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return 0;
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}
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int ieee80211_wx_get_rate(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra)
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{
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u32 tmp_rate;
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#if 0
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printk("===>mode:%d, halfNmode:%d\n", ieee->mode, ieee->bHalfWirelessN24GMode);
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if (ieee->mode & (IEEE_A | IEEE_B | IEEE_G))
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tmp_rate = ieee->rate;
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else if (ieee->mode & IEEE_N_5G)
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tmp_rate = 580;
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else if (ieee->mode & IEEE_N_24G)
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{
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if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
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tmp_rate = HTHalfMcsToDataRate(ieee, 15);
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else
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tmp_rate = HTMcsToDataRate(ieee, 15);
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}
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#else
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tmp_rate = TxCountToDataRate(ieee, ieee->softmac_stats.CurrentShowTxate);
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#endif
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wrqu->bitrate.value = tmp_rate * 500000;
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return 0;
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}
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int ieee80211_wx_set_rts(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra)
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{
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if (wrqu->rts.disabled || !wrqu->rts.fixed)
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ieee->rts = DEFAULT_RTS_THRESHOLD;
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else
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{
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if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
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wrqu->rts.value > MAX_RTS_THRESHOLD)
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return -EINVAL;
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ieee->rts = wrqu->rts.value;
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}
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return 0;
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}
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int ieee80211_wx_get_rts(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra)
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{
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wrqu->rts.value = ieee->rts;
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wrqu->rts.fixed = 0; /* no auto select */
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wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
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return 0;
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}
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int ieee80211_wx_set_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
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union iwreq_data *wrqu, char *b)
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{
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ieee->sync_scan_hurryup = 1;
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down(&ieee->wx_sem);
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if (wrqu->mode == ieee->iw_mode)
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goto out;
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if (wrqu->mode == IW_MODE_MONITOR){
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ieee->dev->type = ARPHRD_IEEE80211;
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}else{
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ieee->dev->type = ARPHRD_ETHER;
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}
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if (!ieee->proto_started){
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ieee->iw_mode = wrqu->mode;
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}else{
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ieee80211_stop_protocol(ieee,true);
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ieee->iw_mode = wrqu->mode;
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ieee80211_start_protocol(ieee);
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}
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out:
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up(&ieee->wx_sem);
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return 0;
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}
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
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void ieee80211_wx_sync_scan_wq(struct work_struct *work)
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{
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struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wx_sync_scan_wq);
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#else
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void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee)
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{
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#endif
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short chan;
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HT_EXTCHNL_OFFSET chan_offset=0;
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HT_CHANNEL_WIDTH bandwidth=0;
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int b40M = 0;
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static int count = 0;
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chan = ieee->current_network.channel;
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#ifdef ENABLE_LPS
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if (ieee->LeisurePSLeave) {
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ieee->LeisurePSLeave(ieee->dev);
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}
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/* notify AP to be in PS mode */
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ieee80211_sta_ps_send_null_frame(ieee, 1);
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ieee80211_sta_ps_send_null_frame(ieee, 1);
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#endif
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netif_carrier_off(ieee->dev);
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if (ieee->data_hard_stop)
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ieee->data_hard_stop(ieee->dev);
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ieee80211_stop_send_beacons(ieee);
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ieee->state = IEEE80211_LINKED_SCANNING;
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ieee->link_change(ieee->dev);
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ieee->InitialGainHandler(ieee->dev,IG_Backup);
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if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT && ieee->pHTInfo->bCurBW40MHz) {
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b40M = 1;
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chan_offset = ieee->pHTInfo->CurSTAExtChnlOffset;
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bandwidth = (HT_CHANNEL_WIDTH)ieee->pHTInfo->bCurBW40MHz;
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printk("Scan in 40M, force to 20M first:%d, %d\n", chan_offset, bandwidth);
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ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
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}
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ieee80211_start_scan_syncro(ieee);
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if (b40M) {
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printk("Scan in 20M, back to 40M\n");
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if (chan_offset == HT_EXTCHNL_OFFSET_UPPER)
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ieee->set_chan(ieee->dev, chan + 2);
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else if (chan_offset == HT_EXTCHNL_OFFSET_LOWER)
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ieee->set_chan(ieee->dev, chan - 2);
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else
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ieee->set_chan(ieee->dev, chan);
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ieee->SetBWModeHandler(ieee->dev, bandwidth, chan_offset);
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} else {
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ieee->set_chan(ieee->dev, chan);
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}
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ieee->InitialGainHandler(ieee->dev,IG_Restore);
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ieee->state = IEEE80211_LINKED;
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ieee->link_change(ieee->dev);
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#ifdef ENABLE_LPS
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/* Notify AP that I wake up again */
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ieee80211_sta_ps_send_null_frame(ieee, 0);
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#endif
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// To prevent the immediately calling watch_dog after scan.
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if(ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
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{
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ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
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ieee->LinkDetectInfo.NumRecvDataInPeriod= 1;
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}
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if (ieee->data_hard_resume)
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ieee->data_hard_resume(ieee->dev);
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if(ieee->iw_mode == IW_MODE_ADHOC || ieee->iw_mode == IW_MODE_MASTER)
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ieee80211_start_send_beacons(ieee);
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netif_carrier_on(ieee->dev);
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count = 0;
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up(&ieee->wx_sem);
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}
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int ieee80211_wx_set_scan(struct ieee80211_device *ieee, struct iw_request_info *a,
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union iwreq_data *wrqu, char *b)
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{
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int ret = 0;
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down(&ieee->wx_sem);
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if (ieee->iw_mode == IW_MODE_MONITOR || !(ieee->proto_started)){
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ret = -1;
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goto out;
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}
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if ( ieee->state == IEEE80211_LINKED){
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#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
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queue_work(ieee->wq, &ieee->wx_sync_scan_wq);
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#else
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schedule_task(&ieee->wx_sync_scan_wq);
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#endif
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/* intentionally forget to up sem */
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return 0;
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}
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out:
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up(&ieee->wx_sem);
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return ret;
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}
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int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
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struct iw_request_info *a,
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union iwreq_data *wrqu, char *extra)
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{
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int ret=0,len;
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short proto_started;
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unsigned long flags;
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ieee->sync_scan_hurryup = 1;
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down(&ieee->wx_sem);
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proto_started = ieee->proto_started;
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if (wrqu->essid.length > IW_ESSID_MAX_SIZE){
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ret= -E2BIG;
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goto out;
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}
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if (ieee->iw_mode == IW_MODE_MONITOR){
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ret= -1;
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goto out;
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}
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if(proto_started){
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ieee80211_stop_protocol(ieee,true);
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}
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/* this is just to be sure that the GET wx callback
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* has consisten infos. not needed otherwise
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*/
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spin_lock_irqsave(&ieee->lock, flags);
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if (wrqu->essid.flags && wrqu->essid.length) {
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//first flush current network.ssid
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len = ((wrqu->essid.length-1) < IW_ESSID_MAX_SIZE) ? (wrqu->essid.length-1) : IW_ESSID_MAX_SIZE;
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
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strncpy(ieee->current_network.ssid, extra, len);
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ieee->current_network.ssid_len = len;
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#if 0
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{
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int i;
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for (i=0; i<len; i++)
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printk("%c ", extra[i]);
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printk("\n");
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}
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#endif
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#else
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strncpy(ieee->current_network.ssid, extra, len+1);
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ieee->current_network.ssid_len = len+1;
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#if 0
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{
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int i;
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for (i=0; i<len + 1; i++)
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printk("%c ", extra[i]);
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printk("\n");
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}
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#endif
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#endif
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ieee->ssid_set = 1;
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}
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else{
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ieee->ssid_set = 0;
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ieee->current_network.ssid[0] = '\0';
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ieee->current_network.ssid_len = 0;
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}
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spin_unlock_irqrestore(&ieee->lock, flags);
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if (proto_started)
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ieee80211_start_protocol(ieee);
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out:
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up(&ieee->wx_sem);
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return ret;
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}
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int ieee80211_wx_get_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
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union iwreq_data *wrqu, char *b)
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{
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wrqu->mode = ieee->iw_mode;
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return 0;
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}
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int ieee80211_wx_set_rawtx(struct ieee80211_device *ieee,
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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");
|
|
if (ieee->mode & (IEEE_N_24G | IEEE_N_5G))
|
|
strcat(wrqu->name, "n");
|
|
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 1
|
|
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;
|
|
}
|
|
#endif
|
|
down(&ieee->wx_sem);
|
|
|
|
if (wrqu->power.disabled){
|
|
ieee->ps = IEEE80211_PS_DISABLED;
|
|
goto exit;
|
|
}
|
|
if (wrqu->power.flags & IW_POWER_TIMEOUT) {
|
|
//ieee->ps_period = wrqu->power.value / 1000;
|
|
ieee->ps_timeout = wrqu->power.value / 1000;
|
|
}
|
|
|
|
if (wrqu->power.flags & IW_POWER_PERIOD) {
|
|
|
|
//ieee->ps_timeout = wrqu->power.value / 1000;
|
|
ieee->ps_period = wrqu->power.value / 1000;
|
|
//wrq->value / 1024;
|
|
|
|
}
|
|
switch (wrqu->power.flags & IW_POWER_MODE) {
|
|
case IW_POWER_UNICAST_R:
|
|
ieee->ps = IEEE80211_PS_UNICAST;
|
|
break;
|
|
case IW_POWER_MULTICAST_R:
|
|
ieee->ps = IEEE80211_PS_MBCAST;
|
|
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;
|
|
|
|
}
|
|
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->ps_period * 1000;
|
|
//ieee->current_network.dtim_period * ieee->current_network.beacon_interval * 1024;
|
|
}
|
|
|
|
if ((ieee->ps & (IEEE80211_PS_MBCAST | IEEE80211_PS_UNICAST)) == (IEEE80211_PS_MBCAST | IEEE80211_PS_UNICAST))
|
|
wrqu->power.flags |= IW_POWER_ALL_R;
|
|
else if (ieee->ps & IEEE80211_PS_MBCAST)
|
|
wrqu->power.flags |= IW_POWER_MULTICAST_R;
|
|
else
|
|
wrqu->power.flags |= IW_POWER_UNICAST_R;
|
|
|
|
exit:
|
|
up(&ieee->wx_sem);
|
|
return ret;
|
|
|
|
}
|
|
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
|
|
//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);
|
|
//EXPORT_SYMBOL(ieee80211_wx_set_rts);
|
|
//EXPORT_SYMBOL(ieee80211_wx_get_rts);
|
|
#else
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_essid);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_essid);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_rate);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_rate);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_wap);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_wap);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_mode);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_mode);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_scan);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_freq);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_freq);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_rawtx);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_name);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_power);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_power);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wlan_frequencies);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_set_rts);
|
|
EXPORT_SYMBOL_NOVERS(ieee80211_wx_get_rts);
|
|
#endif
|