text: /******************************************************************************
   * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   * Linux device driver for RTL8192E
   *
   * Based on the r8180 driver, which is:
   * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of version 2 of the GNU General Public License as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
   *
   * The full GNU General Public License is included in this distribution in the
   * file called LICENSE.
   *
   * Contact Information:
   * Jerry chuang <wlanfae@realtek.com>
   */
  
  
  #include <linux/vmalloc.h>
  #include <linux/slab.h>
  #include <asm/uaccess.h>
  #include "r8192E_hw.h"
  #include "r8192E.h"
  #include "r8190_rtl8256.h" /* RTL8225 Radio frontend */
  #include "r8180_93cx6.h"   /* Card EEPROM */
  #include "r8192E_wx.h"
  #include "r819xE_phy.h" //added by WB 4.30.2008
  #include "r819xE_phyreg.h"
  #include "r819xE_cmdpkt.h"
  #include "r8192E_dm.h"
  
  #ifdef CONFIG_PM
  #include "r8192_pm.h"
  #endif
  
  #ifdef ENABLE_DOT11D
  #include "ieee80211/dot11d.h"
  #endif
  
  //set here to open your trace code. //WB
  u32 rt_global_debug_component = COMP_ERR ; //always open err flags on
  
  static DEFINE_PCI_DEVICE_TABLE(rtl8192_pci_id_tbl) = {
  	/* Realtek */
  	{ PCI_DEVICE(0x10ec, 0x8192) },
  
  	/* Corega */
  	{ PCI_DEVICE(0x07aa, 0x0044) },
  	{ PCI_DEVICE(0x07aa, 0x0047) },
  	{}
  };
  
  static char ifname[IFNAMSIZ] = "wlan%d";
  static int hwwep = 1; //default use hw. set 0 to use software security
  static int channels = 0x3fff;
  
  MODULE_LICENSE("GPL");
  MODULE_VERSION("V 1.1");
  MODULE_DEVICE_TABLE(pci, rtl8192_pci_id_tbl);
  //MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
  MODULE_DESCRIPTION("Linux driver for Realtek RTL819x WiFi cards");
  
  
  module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR);
  module_param(hwwep,int, S_IRUGO|S_IWUSR);
  module_param(channels,int, S_IRUGO|S_IWUSR);
  
  MODULE_PARM_DESC(ifname," Net interface name, wlan%d=default");
  MODULE_PARM_DESC(hwwep," Try to use hardware WEP support. Still broken and not available on all cards");
  MODULE_PARM_DESC(channels," Channel bitmask for specific locales. NYI");
  
  static int __devinit rtl8192_pci_probe(struct pci_dev *pdev,
  			 const struct pci_device_id *id);
  static void __devexit rtl8192_pci_disconnect(struct pci_dev *pdev);
  
  static struct pci_driver rtl8192_pci_driver = {
  	.name		= RTL819xE_MODULE_NAME,	          /* Driver name   */
  	.id_table	= rtl8192_pci_id_tbl,	          /* PCI_ID table  */
  	.probe		= rtl8192_pci_probe,	          /* probe fn      */
  	.remove		= __devexit_p(rtl8192_pci_disconnect),	  /* remove fn     */
  #ifdef CONFIG_PM
  	.suspend	= rtl8192E_suspend,	          /* PM suspend fn */
  	.resume		= rtl8192E_resume,                 /* PM resume fn  */
  #else
  	.suspend	= NULL,			          /* PM suspend fn */
  	.resume		= NULL,			          /* PM resume fn  */
  #endif
  };
  
  static void rtl8192_start_beacon(struct ieee80211_device *ieee80211);
  static void rtl8192_stop_beacon(struct ieee80211_device *ieee80211);
  static void rtl819x_watchdog_wqcallback(struct work_struct *work);
  static void rtl8192_irq_rx_tasklet(unsigned long arg);
  static void rtl8192_irq_tx_tasklet(unsigned long arg);
  static void rtl8192_prepare_beacon(unsigned long arg);
  static irqreturn_t rtl8192_interrupt(int irq, void *param);
  static void rtl819xE_tx_cmd(struct r8192_priv *priv, struct sk_buff *skb);
  static void rtl8192_update_ratr_table(struct r8192_priv *priv);
  static void rtl8192_restart(struct work_struct *work);
  static void watch_dog_timer_callback(unsigned long data);
  static int _rtl8192_up(struct r8192_priv *priv);
  static void rtl8192_cancel_deferred_work(struct r8192_priv* priv);
  static short rtl8192_tx(struct r8192_priv *priv, struct sk_buff* skb);
  
  #ifdef ENABLE_DOT11D
  
  typedef struct _CHANNEL_LIST
  {
  	u8	Channel[32];
  	u8	Len;
  }CHANNEL_LIST, *PCHANNEL_LIST;
  
  static const CHANNEL_LIST ChannelPlan[] = {
  	{{1,2,3,4,5,6,7,8,9,10,11,36,40,44,48,52,56,60,64,149,153,157,161,165},24},  		//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},13},    //Spain. Change to ETSI.
  	{{1,2,3,4,5,6,7,8,9,10,11,12,13},13},  	//France. Change to ETSI.
  	{{1,2,3,4,5,6,7,8,9,10,11,12,13,14,36,40,44,48,52,56,60,64},22},	//MKK					//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},13},	//Israel.
  	{{1,2,3,4,5,6,7,8,9,10,11,12,13,14,36,40,44,48,52,56,60,64},22},			// For 11a , TELEC
  	{{1,2,3,4,5,6,7,8,9,10,11,12,13,14,36,40,44,48,52,56,60,64}, 22},    //MIC
  	{{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 void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv* priv)
  {
  	int i, max_chan=-1, min_chan=-1;
  	struct ieee80211_device* ieee = priv->ieee80211;
  	switch (channel_plan)
  	{
  		case COUNTRY_CODE_FCC:
  		case COUNTRY_CODE_IC:
  		case COUNTRY_CODE_ETSI:
  		case COUNTRY_CODE_SPAIN:
  		case COUNTRY_CODE_FRANCE:
  		case COUNTRY_CODE_MKK:
  		case COUNTRY_CODE_MKK1:
  		case COUNTRY_CODE_ISRAEL:
  		case COUNTRY_CODE_TELEC:
  		case COUNTRY_CODE_MIC:
  		{
  			Dot11d_Init(ieee);
  			ieee->bGlobalDomain = false;
                          //acturally 8225 & 8256 rf chip only support B,G,24N mode
  			min_chan = 1;
  			max_chan = 14;
  
  			if (ChannelPlan[channel_plan].Len != 0){
  				// Clear old channel map
  				memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map));
  				// Set new channel map
  				for (i=0;i<ChannelPlan[channel_plan].Len;i++)
  				{
  	                                if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan)
  					    break;
  					GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
  				}
  			}
  			break;
  		}
  		case COUNTRY_CODE_GLOBAL_DOMAIN:
  		{
  			GET_DOT11D_INFO(ieee)->bEnabled = 0; //this flag enabled to follow 11d country IE setting, otherwise, it shall follow global domain setting
  			Dot11d_Reset(ieee);
  			ieee->bGlobalDomain = true;
  			break;
  		}
  		default:
  			break;
  	}
  }
  #endif
  
  static inline bool rx_hal_is_cck_rate(prx_fwinfo_819x_pci pdrvinfo)
  {
  	return (pdrvinfo->RxRate == DESC90_RATE1M ||
  		pdrvinfo->RxRate == DESC90_RATE2M ||
  		pdrvinfo->RxRate == DESC90_RATE5_5M ||
  		pdrvinfo->RxRate == DESC90_RATE11M) &&
  		!pdrvinfo->RxHT;
  }
  
  void CamResetAllEntry(struct r8192_priv* priv)
  {
  	write_nic_dword(priv, RWCAM, BIT31|BIT30);
  }
  
  void write_cam(struct r8192_priv *priv, u8 addr, u32 data)
  {
          write_nic_dword(priv, WCAMI, data);
          write_nic_dword(priv, RWCAM, BIT31|BIT16|(addr&0xff) );
  }
  
  u32 read_cam(struct r8192_priv *priv, u8 addr)
  {
          write_nic_dword(priv, RWCAM, 0x80000000|(addr&0xff) );
          return read_nic_dword(priv, 0xa8);
  }
  
  u8 read_nic_byte(struct r8192_priv *priv, int x)
  {
          return 0xff & readb(priv->mem_start + x);
  }
  
  u32 read_nic_dword(struct r8192_priv *priv, int x)
  {
          return readl(priv->mem_start + x);
  }
  
  u16 read_nic_word(struct r8192_priv *priv, int x)
  {
          return readw(priv->mem_start + x);
  }
  
  void write_nic_byte(struct r8192_priv *priv, int x,u8 y)
  {
          writeb(y, priv->mem_start + x);
  	udelay(20);
  }
  
  void write_nic_dword(struct r8192_priv *priv, int x,u32 y)
  {
          writel(y, priv->mem_start + x);
  	udelay(20);
  }
  
  void write_nic_word(struct r8192_priv *priv, int x,u16 y)
  {
          writew(y, priv->mem_start + x);
  	udelay(20);
  }
  
  u8 rtl8192e_ap_sec_type(struct ieee80211_device *ieee)
  {
  	static const u8 ccmp_ie[4] = {0x00,0x50,0xf2,0x04};
  	static const u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
  	int wpa_ie_len= ieee->wpa_ie_len;
  	struct ieee80211_crypt_data* crypt;
  	int encrypt;
  
  	crypt = ieee->crypt[ieee->tx_keyidx];
  
  	encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY) ||
  		  (ieee->host_encrypt && crypt && crypt->ops &&
  		   (0 == strcmp(crypt->ops->name,"WEP")));
  
  	/* simply judge  */
  	if(encrypt && (wpa_ie_len == 0)) {
  		// wep encryption, no N mode setting */
  		return SEC_ALG_WEP;
  	} else if((wpa_ie_len != 0)) {
  		// parse pairwise key type */
  		if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]),ccmp_ie,4))) ||
  				((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10],ccmp_rsn_ie, 4))))
  			return SEC_ALG_CCMP;
  		else
  			return SEC_ALG_TKIP;
  	} else {
  		return SEC_ALG_NONE;
  	}
  }
  
  void rtl8192e_SetHwReg(struct ieee80211_device *ieee80211, u8 variable, u8 *val)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  
  	switch(variable)
  	{
  
  		case HW_VAR_BSSID:
  			write_nic_dword(priv, BSSIDR, ((u32*)(val))[0]);
  			write_nic_word(priv, BSSIDR+2, ((u16*)(val+2))[0]);
  		break;
  
  		case HW_VAR_MEDIA_STATUS:
  		{
  			RT_OP_MODE	OpMode = *((RT_OP_MODE *)(val));
  			u8		btMsr = read_nic_byte(priv, MSR);
  
  			btMsr &= 0xfc;
  
  			switch(OpMode)
  			{
  			case RT_OP_MODE_INFRASTRUCTURE:
  				btMsr |= MSR_INFRA;
  				break;
  
  			case RT_OP_MODE_IBSS:
  				btMsr |= MSR_ADHOC;
  				break;
  
  			case RT_OP_MODE_AP:
  				btMsr |= MSR_AP;
  				break;
  
  			default:
  				btMsr |= MSR_NOLINK;
  				break;
  			}
  
  			write_nic_byte(priv, MSR, btMsr);
  		}
  		break;
  
  		case HW_VAR_CHECK_BSSID:
  		{
  			u32	RegRCR, Type;
  
  			Type = ((u8*)(val))[0];
  			RegRCR = read_nic_dword(priv, RCR);
  			priv->ReceiveConfig = RegRCR;
  
  			if (Type == true)
  				RegRCR |= (RCR_CBSSID);
  			else if (Type == false)
  				RegRCR &= (~RCR_CBSSID);
  
  			write_nic_dword(priv, RCR,RegRCR);
  			priv->ReceiveConfig = RegRCR;
  
  		}
  		break;
  
  		case HW_VAR_SLOT_TIME:
  		{
  			priv->slot_time = val[0];
  			write_nic_byte(priv, SLOT_TIME, val[0]);
  
  		}
  		break;
  
  		case HW_VAR_ACK_PREAMBLE:
  		{
  			u32 regTmp = 0;
  			priv->short_preamble = (bool)(*(u8*)val );
  			regTmp = priv->basic_rate;
  			if (priv->short_preamble)
  				regTmp |= BRSR_AckShortPmb;
  			write_nic_dword(priv, RRSR, regTmp);
  		}
  		break;
  
  		case HW_VAR_CPU_RST:
  			write_nic_dword(priv, CPU_GEN, ((u32*)(val))[0]);
  		break;
  
  		default:
  		break;
  	}
  
  }
  
  static struct proc_dir_entry *rtl8192_proc = NULL;
  
  static int proc_get_stats_ap(char *page, char **start,
  			  off_t offset, int count,
  			  int *eof, void *data)
  {
  	struct r8192_priv *priv = data;
  	struct ieee80211_device *ieee = priv->ieee80211;
  	struct ieee80211_network *target;
  	int len = 0;
  
          list_for_each_entry(target, &ieee->network_list, list) {
  
  		len += snprintf(page + len, count - len,
                  "%s ", target->ssid);
  
  		if(target->wpa_ie_len>0 || target->rsn_ie_len>0){
  	                len += snprintf(page + len, count - len,
          	        "WPA\n");
  		}
  		else{
                          len += snprintf(page + len, count - len,
                          "non_WPA\n");
                  }
  
          }
  
  	*eof = 1;
  	return len;
  }
  
  static int proc_get_registers(char *page, char **start,
  			  off_t offset, int count,
  			  int *eof, void *data)
  {
  	struct r8192_priv *priv = data;
  	int len = 0;
  	int i,n;
  	int max=0xff;
  
  	/* This dump the current register page */
  	len += snprintf(page + len, count - len,
                          "\n####################page 0##################\n ");
  
  	for(n=0;n<=max;)
  	{
  		len += snprintf(page + len, count - len,
  			"\nD:  %2x > ",n);
  
  		for(i=0;i<16 && n<=max;i++,n++)
  		len += snprintf(page + len, count - len,
  			"%2x ",read_nic_byte(priv,n));
  	}
  	len += snprintf(page + len, count - len,"\n");
  	len += snprintf(page + len, count - len,
                          "\n####################page 1##################\n ");
          for(n=0;n<=max;)
          {
                  len += snprintf(page + len, count - len,
                          "\nD:  %2x > ",n);
  
                  for(i=0;i<16 && n<=max;i++,n++)
                  len += snprintf(page + len, count - len,
                          "%2x ",read_nic_byte(priv,0x100|n));
          }
  
  	len += snprintf(page + len, count - len,
                          "\n####################page 3##################\n ");
          for(n=0;n<=max;)
          {
                  len += snprintf(page + len, count - len,
                          "\nD:  %2x > ",n);
  
                  for(i=0;i<16 && n<=max;i++,n++)
                  len += snprintf(page + len, count - len,
                          "%2x ",read_nic_byte(priv,0x300|n));
          }
  
  	*eof = 1;
  	return len;
  
  }
  
  static int proc_get_stats_tx(char *page, char **start,
  			  off_t offset, int count,
  			  int *eof, void *data)
  {
  	struct r8192_priv *priv = data;
  
  	int len = 0;
  
  	len += snprintf(page + len, count - len,
  		"TX VI priority ok int: %lu\n"
  		"TX VO priority ok int: %lu\n"
  		"TX BE priority ok int: %lu\n"
  		"TX BK priority ok int: %lu\n"
  		"TX MANAGE priority ok int: %lu\n"
  		"TX BEACON priority ok int: %lu\n"
  		"TX BEACON priority error int: %lu\n"
  		"TX CMDPKT priority ok int: %lu\n"
  		"TX queue stopped?: %d\n"
  		"TX fifo overflow: %lu\n"
  		"TX total data packets %lu\n"
  		"TX total data bytes :%lu\n",
  		priv->stats.txviokint,
  		priv->stats.txvookint,
  		priv->stats.txbeokint,
  		priv->stats.txbkokint,
  		priv->stats.txmanageokint,
  		priv->stats.txbeaconokint,
  		priv->stats.txbeaconerr,
  		priv->stats.txcmdpktokint,
  		netif_queue_stopped(priv->ieee80211->dev),
  		priv->stats.txoverflow,
  		priv->ieee80211->stats.tx_packets,
  		priv->ieee80211->stats.tx_bytes);
  
  	*eof = 1;
  	return len;
  }
  
  
  
  static int proc_get_stats_rx(char *page, char **start,
  			  off_t offset, int count,
  			  int *eof, void *data)
  {
  	struct r8192_priv *priv = data;
  	int len = 0;
  
  	len += snprintf(page + len, count - len,
  		"RX packets: %lu\n"
  		"RX desc err: %lu\n"
  		"RX rx overflow error: %lu\n",
  		priv->stats.rxint,
  		priv->stats.rxrdu,
  		priv->stats.rxoverflow);
  
  	*eof = 1;
  	return len;
  }
  
  static void rtl8192_proc_module_init(void)
  {
  	RT_TRACE(COMP_INIT, "Initializing proc filesystem\n");
  	rtl8192_proc=create_proc_entry(RTL819xE_MODULE_NAME, S_IFDIR, init_net.proc_net);
  }
  
  
  static void rtl8192_proc_module_remove(void)
  {
  	remove_proc_entry(RTL819xE_MODULE_NAME, init_net.proc_net);
  }
  
  
  static void rtl8192_proc_remove_one(struct r8192_priv *priv)
  {
  	struct net_device *dev = priv->ieee80211->dev;
  
  	printk("dev name=======> %s\n",dev->name);
  
  	if (priv->dir_dev) {
  		remove_proc_entry("stats-tx", priv->dir_dev);
  		remove_proc_entry("stats-rx", priv->dir_dev);
  		remove_proc_entry("stats-ap", priv->dir_dev);
  		remove_proc_entry("registers", priv->dir_dev);
  		remove_proc_entry("wlan0", rtl8192_proc);
  		priv->dir_dev = NULL;
  	}
  }
  
  
  static void rtl8192_proc_init_one(struct r8192_priv *priv)
  {
  	struct net_device *dev = priv->ieee80211->dev;
  	struct proc_dir_entry *e;
  
  	priv->dir_dev = create_proc_entry(dev->name,
  					  S_IFDIR | S_IRUGO | S_IXUGO,
  					  rtl8192_proc);
  	if (!priv->dir_dev) {
  		RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192/%s\n",
  		      dev->name);
  		return;
  	}
  	e = create_proc_read_entry("stats-rx", S_IFREG | S_IRUGO,
  				   priv->dir_dev, proc_get_stats_rx, priv);
  
  	if (!e) {
  		RT_TRACE(COMP_ERR,"Unable to initialize "
  		      "/proc/net/rtl8192/%s/stats-rx\n",
  		      dev->name);
  	}
  
  
  	e = create_proc_read_entry("stats-tx", S_IFREG | S_IRUGO,
  				   priv->dir_dev, proc_get_stats_tx, priv);
  
  	if (!e) {
  		RT_TRACE(COMP_ERR, "Unable to initialize "
  		      "/proc/net/rtl8192/%s/stats-tx\n",
  		      dev->name);
  	}
  
  	e = create_proc_read_entry("stats-ap", S_IFREG | S_IRUGO,
  				   priv->dir_dev, proc_get_stats_ap, priv);
  
  	if (!e) {
  		RT_TRACE(COMP_ERR, "Unable to initialize "
  		      "/proc/net/rtl8192/%s/stats-ap\n",
  		      dev->name);
  	}
  
  	e = create_proc_read_entry("registers", S_IFREG | S_IRUGO,
  				   priv->dir_dev, proc_get_registers, priv);
  	if (!e) {
  		RT_TRACE(COMP_ERR, "Unable to initialize "
  		      "/proc/net/rtl8192/%s/registers\n",
  		      dev->name);
  	}
  }
  
  static short check_nic_enough_desc(struct ieee80211_device *ieee, int prio)
  {
      struct r8192_priv *priv = ieee80211_priv(ieee->dev);
      struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
  
      /* for now we reserve two free descriptor as a safety boundary
       * between the tail and the head
       */
      return (ring->entries - skb_queue_len(&ring->queue) >= 2);
  }
  
  static void tx_timeout(struct net_device *dev)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  
  	schedule_work(&priv->reset_wq);
  	printk("TXTIMEOUT");
  }
  
  static void rtl8192_irq_enable(struct r8192_priv *priv)
  {
  	u32 mask;
  
  	mask = IMR_ROK | IMR_VODOK | IMR_VIDOK | IMR_BEDOK | IMR_BKDOK |
  	       IMR_HCCADOK | IMR_MGNTDOK | IMR_COMDOK | IMR_HIGHDOK |
  	       IMR_BDOK | IMR_RXCMDOK | IMR_TIMEOUT0 | IMR_RDU | IMR_RXFOVW |
  	       IMR_TXFOVW | IMR_BcnInt | IMR_TBDOK | IMR_TBDER;
  
  	write_nic_dword(priv, INTA_MASK, mask);
  }
  
  static void rtl8192_irq_disable(struct r8192_priv *priv)
  {
  	write_nic_dword(priv, INTA_MASK, 0);
  	synchronize_irq(priv->irq);
  }
  
  static void rtl8192_update_msr(struct r8192_priv *priv)
  {
  	u8 msr;
  
  	msr  = read_nic_byte(priv, MSR);
  	msr &= ~ MSR_LINK_MASK;
  
  	/* do not change in link_state != WLAN_LINK_ASSOCIATED.
  	 * msr must be updated if the state is ASSOCIATING.
  	 * this is intentional and make sense for ad-hoc and
  	 * master (see the create BSS/IBSS func)
  	 */
  	if (priv->ieee80211->state == IEEE80211_LINKED){
  
  		if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
  			msr |= (MSR_LINK_MANAGED<<MSR_LINK_SHIFT);
  		else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
  			msr |= (MSR_LINK_ADHOC<<MSR_LINK_SHIFT);
  		else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
  			msr |= (MSR_LINK_MASTER<<MSR_LINK_SHIFT);
  
  	}else
  		msr |= (MSR_LINK_NONE<<MSR_LINK_SHIFT);
  
  	write_nic_byte(priv, MSR, msr);
  }
  
  static void rtl8192_set_chan(struct ieee80211_device *ieee80211, short ch)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  
  	priv->chan = ch;
  
  	/* need to implement rf set channel here WB */
  
  	if (priv->rf_set_chan)
  		priv->rf_set_chan(ieee80211, priv->chan);
  }
  
  static void rtl8192_rx_enable(struct r8192_priv *priv)
  {
  	write_nic_dword(priv, RDQDA, priv->rx_ring_dma);
  }
  
  /* the TX_DESC_BASE setting is according to the following queue index
   *  BK_QUEUE       ===>                        0
   *  BE_QUEUE       ===>                        1
   *  VI_QUEUE       ===>                        2
   *  VO_QUEUE       ===>                        3
   *  HCCA_QUEUE     ===>                        4
   *  TXCMD_QUEUE    ===>                        5
   *  MGNT_QUEUE     ===>                        6
   *  HIGH_QUEUE     ===>                        7
   *  BEACON_QUEUE   ===>                        8
   *  */
  static const u32 TX_DESC_BASE[] = {BKQDA, BEQDA, VIQDA, VOQDA, HCCAQDA, CQDA, MQDA, HQDA, BQDA};
  static void rtl8192_tx_enable(struct r8192_priv *priv)
  {
  	u32 i;
  
  	for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
  		write_nic_dword(priv, TX_DESC_BASE[i], priv->tx_ring[i].dma);
  
  	ieee80211_reset_queue(priv->ieee80211);
  }
  
  
  static void rtl8192_free_rx_ring(struct r8192_priv *priv)
  {
  	int i;
  
  	for (i = 0; i < priv->rxringcount; i++) {
  		struct sk_buff *skb = priv->rx_buf[i];
  		if (!skb)
  			continue;
  
  		pci_unmap_single(priv->pdev,
  				 *((dma_addr_t *)skb->cb),
  				 priv->rxbuffersize, PCI_DMA_FROMDEVICE);
  		kfree_skb(skb);
  	}
  
  	pci_free_consistent(priv->pdev, sizeof(*priv->rx_ring) * priv->rxringcount,
  			    priv->rx_ring, priv->rx_ring_dma);
  	priv->rx_ring = NULL;
  }
  
  static void rtl8192_free_tx_ring(struct r8192_priv *priv, unsigned int prio)
  {
  	struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
  
  	while (skb_queue_len(&ring->queue)) {
  		tx_desc_819x_pci *entry = &ring->desc[ring->idx];
  		struct sk_buff *skb = __skb_dequeue(&ring->queue);
  
  		pci_unmap_single(priv->pdev, le32_to_cpu(entry->TxBuffAddr),
  				 skb->len, PCI_DMA_TODEVICE);
  		kfree_skb(skb);
  		ring->idx = (ring->idx + 1) % ring->entries;
  	}
  
  	pci_free_consistent(priv->pdev, sizeof(*ring->desc)*ring->entries,
  			    ring->desc, ring->dma);
  	ring->desc = NULL;
  }
  
  void PHY_SetRtl8192eRfOff(struct r8192_priv *priv)
  {
  	//disable RF-Chip A/B
  	rtl8192_setBBreg(priv, rFPGA0_XA_RFInterfaceOE, BIT4, 0x0);
  	//analog to digital off, for power save
  	rtl8192_setBBreg(priv, rFPGA0_AnalogParameter4, 0x300, 0x0);
  	//digital to analog off, for power save
  	rtl8192_setBBreg(priv, rFPGA0_AnalogParameter1, 0x18, 0x0);
  	//rx antenna off
  	rtl8192_setBBreg(priv, rOFDM0_TRxPathEnable, 0xf, 0x0);
  	//rx antenna off
  	rtl8192_setBBreg(priv, rOFDM1_TRxPathEnable, 0xf, 0x0);
  	//analog to digital part2 off, for power save
  	rtl8192_setBBreg(priv, rFPGA0_AnalogParameter1, 0x60, 0x0);
  	rtl8192_setBBreg(priv, rFPGA0_AnalogParameter1, 0x4, 0x0);
  	// Analog parameter!!Change bias and Lbus control.
  	write_nic_byte(priv, ANAPAR_FOR_8192PciE, 0x07);
  }
  
  static void rtl8192_halt_adapter(struct r8192_priv *priv, bool reset)
  {
  	int i;
  	u8 OpMode;
  	u32 ulRegRead;
  
  	OpMode = RT_OP_MODE_NO_LINK;
  	priv->ieee80211->SetHwRegHandler(priv->ieee80211, HW_VAR_MEDIA_STATUS, &OpMode);
  
  	if (!priv->ieee80211->bSupportRemoteWakeUp) {
  		/*
  		 * disable tx/rx. In 8185 we write 0x10 (Reset bit),
  		 * but here we make reference to WMAC and wirte 0x0
  		 */
  		write_nic_byte(priv, CMDR, 0);
  	}
  
  	mdelay(20);
  
  	if (!reset) {
  		mdelay(150);
  
  		priv->bHwRfOffAction = 2;
  
  		/*
  		 * Call MgntActSet_RF_State instead to
  		 * prevent RF config race condition.
  		 */
  		if (!priv->ieee80211->bSupportRemoteWakeUp) {
  			PHY_SetRtl8192eRfOff(priv);
  			ulRegRead = read_nic_dword(priv, CPU_GEN);
  			ulRegRead |= CPU_GEN_SYSTEM_RESET;
  			write_nic_dword(priv,CPU_GEN, ulRegRead);
  		} else {
  			/* for WOL */
  			write_nic_dword(priv, WFCRC0, 0xffffffff);
  			write_nic_dword(priv, WFCRC1, 0xffffffff);
  			write_nic_dword(priv, WFCRC2, 0xffffffff);
  
  			/* Write PMR register */
  			write_nic_byte(priv, PMR, 0x5);
  			/* Disable tx, enanble rx */
  			write_nic_byte(priv, MacBlkCtrl, 0xa);
  		}
  	}
  
  	for(i = 0; i < MAX_QUEUE_SIZE; i++) {
  		skb_queue_purge(&priv->ieee80211->skb_waitQ [i]);
  	}
  	for(i = 0; i < MAX_QUEUE_SIZE; i++) {
  		skb_queue_purge(&priv->ieee80211->skb_aggQ [i]);
  	}
  
  	skb_queue_purge(&priv->skb_queue);
  }
  
  static void rtl8192_data_hard_stop(struct ieee80211_device *ieee80211)
  {
  }
  
  static void rtl8192_data_hard_resume(struct ieee80211_device *ieee80211)
  {
  }
  
  /*
   * this function TX data frames when the ieee80211 stack requires this.
   * It checks also if we need to stop the ieee tx queue, eventually do it
   */
  static void rtl8192_hard_data_xmit(struct sk_buff *skb,
  				   struct ieee80211_device *ieee80211, int rate)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	int ret;
  	cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
  	u8 queue_index = tcb_desc->queue_index;
  
  	/* shall not be referred by command packet */
  	BUG_ON(queue_index == TXCMD_QUEUE);
  
  	if (priv->bHwRadioOff || (!priv->up))
  	{
  		kfree_skb(skb);
  		return;
  	}
  
  	skb_push(skb, priv->ieee80211->tx_headroom);
  	ret = rtl8192_tx(priv, skb);
  	if (ret != 0) {
  		kfree_skb(skb);
  	}
  
  	if (queue_index != MGNT_QUEUE) {
  		priv->ieee80211->stats.tx_bytes += (skb->len - priv->ieee80211->tx_headroom);
  		priv->ieee80211->stats.tx_packets++;
  	}
  }
  
  /*
   * This is a rough attempt to TX a frame
   * This is called by the ieee 80211 stack to TX management frames.
   * If the ring is full packet are dropped (for data frame the queue
   * is stopped before this can happen).
   */
  static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct ieee80211_device *ieee80211)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	int ret;
          cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
          u8 queue_index = tcb_desc->queue_index;
  
          if (queue_index != TXCMD_QUEUE) {
  		if (priv->bHwRadioOff || (!priv->up))
  		{
  			kfree_skb(skb);
  			return 0;
  		}
          }
  
  	if (queue_index == TXCMD_QUEUE) {
  		rtl819xE_tx_cmd(priv, skb);
  		ret = 0;
  		return ret;
  	} else {
  		tcb_desc->RATRIndex = 7;
  		tcb_desc->bTxDisableRateFallBack = 1;
  		tcb_desc->bTxUseDriverAssingedRate = 1;
  		tcb_desc->bTxEnableFwCalcDur = 1;
  		skb_push(skb, ieee80211->tx_headroom);
  		ret = rtl8192_tx(priv, skb);
  		if (ret != 0) {
  			kfree_skb(skb);
  		}
  	}
  
  	return ret;
  }
  
  
  static void rtl8192_tx_isr(struct r8192_priv *priv, int prio)
  {
  	struct rtl8192_tx_ring *ring = &priv->tx_ring[prio];
  
  	while (skb_queue_len(&ring->queue)) {
  		tx_desc_819x_pci *entry = &ring->desc[ring->idx];
  		struct sk_buff *skb;
  
  		/*
  		 * beacon packet will only use the first descriptor defaultly,
  		 * and the OWN may not be cleared by the hardware
  		 */
  		if (prio != BEACON_QUEUE) {
  			if (entry->OWN)
  				return;
  			ring->idx = (ring->idx + 1) % ring->entries;
  		}
  
  		skb = __skb_dequeue(&ring->queue);
  		pci_unmap_single(priv->pdev, le32_to_cpu(entry->TxBuffAddr),
  				 skb->len, PCI_DMA_TODEVICE);
  
  		kfree_skb(skb);
  	}
  
  	if (prio != BEACON_QUEUE) {
  		/* try to deal with the pending packets  */
  		tasklet_schedule(&priv->irq_tx_tasklet);
  	}
  }
  
  static void rtl8192_stop_beacon(struct ieee80211_device *ieee80211)
  {
  }
  
  static void rtl8192_config_rate(struct r8192_priv *priv, u16* rate_config)
  {
  	 struct ieee80211_network *net;
  	 u8 i=0, basic_rate = 0;
  	 net = & priv->ieee80211->current_network;
  
  	 for (i=0; i<net->rates_len; i++)
  	 {
  		 basic_rate = net->rates[i]&0x7f;
  		 switch(basic_rate)
  		 {
  			 case MGN_1M:	*rate_config |= RRSR_1M;	break;
  			 case MGN_2M:	*rate_config |= RRSR_2M;	break;
  			 case MGN_5_5M:	*rate_config |= RRSR_5_5M;	break;
  			 case MGN_11M:	*rate_config |= RRSR_11M;	break;
  			 case MGN_6M:	*rate_config |= RRSR_6M;	break;
  			 case MGN_9M:	*rate_config |= RRSR_9M;	break;
  			 case MGN_12M:	*rate_config |= RRSR_12M;	break;
  			 case MGN_18M:	*rate_config |= RRSR_18M;	break;
  			 case MGN_24M:	*rate_config |= RRSR_24M;	break;
  			 case MGN_36M:	*rate_config |= RRSR_36M;	break;
  			 case MGN_48M:	*rate_config |= RRSR_48M;	break;
  			 case MGN_54M:	*rate_config |= RRSR_54M;	break;
  		 }
  	 }
  	 for (i=0; i<net->rates_ex_len; i++)
  	 {
  		 basic_rate = net->rates_ex[i]&0x7f;
  		 switch(basic_rate)
  		 {
  			 case MGN_1M:	*rate_config |= RRSR_1M;	break;
  			 case MGN_2M:	*rate_config |= RRSR_2M;	break;
  			 case MGN_5_5M:	*rate_config |= RRSR_5_5M;	break;
  			 case MGN_11M:	*rate_config |= RRSR_11M;	break;
  			 case MGN_6M:	*rate_config |= RRSR_6M;	break;
  			 case MGN_9M:	*rate_config |= RRSR_9M;	break;
  			 case MGN_12M:	*rate_config |= RRSR_12M;	break;
  			 case MGN_18M:	*rate_config |= RRSR_18M;	break;
  			 case MGN_24M:	*rate_config |= RRSR_24M;	break;
  			 case MGN_36M:	*rate_config |= RRSR_36M;	break;
  			 case MGN_48M:	*rate_config |= RRSR_48M;	break;
  			 case MGN_54M:	*rate_config |= RRSR_54M;	break;
  		 }
  	 }
  }
  
  
  #define SHORT_SLOT_TIME 9
  #define NON_SHORT_SLOT_TIME 20
  
  static void rtl8192_update_cap(struct r8192_priv *priv, u16 cap)
  {
  	u32 tmp = 0;
  	struct ieee80211_network *net = &priv->ieee80211->current_network;
  
  	priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE;
  	tmp = priv->basic_rate;
  	if (priv->short_preamble)
  		tmp |= BRSR_AckShortPmb;
  	write_nic_dword(priv, RRSR, tmp);
  
  	if (net->mode & (IEEE_G|IEEE_N_24G))
  	{
  		u8 slot_time = 0;
  		if ((cap & WLAN_CAPABILITY_SHORT_SLOT)&&(!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime))
  		{//short slot time
  			slot_time = SHORT_SLOT_TIME;
  		}
  		else //long slot time
  			slot_time = NON_SHORT_SLOT_TIME;
  		priv->slot_time = slot_time;
  		write_nic_byte(priv, SLOT_TIME, slot_time);
  	}
  
  }
  
  static void rtl8192_net_update(struct r8192_priv *priv)
  {
  	struct ieee80211_network *net;
  	u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf;
  	u16 rate_config = 0;
  	net = &priv->ieee80211->current_network;
  
  	/* update Basic rate: RR, BRSR */
  	rtl8192_config_rate(priv, &rate_config);
  
  	/*
  	 * Select RRSR (in Legacy-OFDM and CCK)
  	 * For 8190, we select only 24M, 12M, 6M, 11M, 5.5M,
  	 * 2M, and 1M from the Basic rate.
  	 * We do not use other rates.
  	 */
  	priv->basic_rate = rate_config &= 0x15f;
  
  	/* BSSID */
  	write_nic_dword(priv, BSSIDR, ((u32 *)net->bssid)[0]);
  	write_nic_word(priv, BSSIDR+4, ((u16 *)net->bssid)[2]);
  
  	if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
  	{
  		write_nic_word(priv, ATIMWND, 2);
  		write_nic_word(priv, BCN_DMATIME, 256);
  		write_nic_word(priv, BCN_INTERVAL, net->beacon_interval);
  		/*
  		 * BIT15 of BCN_DRV_EARLY_INT will indicate
  		 * whether software beacon or hw beacon is applied.
  		 */
  		write_nic_word(priv, BCN_DRV_EARLY_INT, 10);
  		write_nic_byte(priv, BCN_ERR_THRESH, 100);
  
  		BcnTimeCfg |= (BcnCW<<BCN_TCFG_CW_SHIFT);
  		/* TODO: BcnIFS may required to be changed on ASIC */
  		BcnTimeCfg |= BcnIFS<<BCN_TCFG_IFS;
  		write_nic_word(priv, BCN_TCFG, BcnTimeCfg);
  	}
  }
  
  static void rtl819xE_tx_cmd(struct r8192_priv *priv, struct sk_buff *skb)
  {
      struct rtl8192_tx_ring *ring;
      tx_desc_819x_pci *entry;
      unsigned int idx;
      dma_addr_t mapping;
      cb_desc *tcb_desc;
      unsigned long flags;
  
      ring = &priv->tx_ring[TXCMD_QUEUE];
      mapping = pci_map_single(priv->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
  
      spin_lock_irqsave(&priv->irq_th_lock,flags);
      idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
      entry = &ring->desc[idx];
  
      tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
      memset(entry,0,12);
      entry->LINIP = tcb_desc->bLastIniPkt;
      entry->FirstSeg = 1;//first segment
      entry->LastSeg = 1; //last segment
      if(tcb_desc->bCmdOrInit == DESC_PACKET_TYPE_INIT) {
          entry->CmdInit = DESC_PACKET_TYPE_INIT;
      } else {
          entry->CmdInit = DESC_PACKET_TYPE_NORMAL;
          entry->Offset = sizeof(TX_FWINFO_8190PCI) + 8;
          entry->PktSize = (u16)(tcb_desc->pkt_size + entry->Offset);
          entry->QueueSelect = QSLT_CMD;
          entry->TxFWInfoSize = 0x08;
          entry->RATid = (u8)DESC_PACKET_TYPE_INIT;
      }
      entry->TxBufferSize = skb->len;
      entry->TxBuffAddr = cpu_to_le32(mapping);
      entry->OWN = 1;
  
      __skb_queue_tail(&ring->queue, skb);
      spin_unlock_irqrestore(&priv->irq_th_lock,flags);
  
      write_nic_byte(priv, TPPoll, TPPoll_CQ);
  
      return;
  }
  
  /*
   * Mapping Software/Hardware descriptor queue id to "Queue Select Field"
   * in TxFwInfo data structure
   */
  static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
  {
  	u8 QueueSelect = 0;
  
  	switch (QueueID) {
  	case BE_QUEUE:
  		QueueSelect = QSLT_BE;
  		break;
  
  	case BK_QUEUE:
  		QueueSelect = QSLT_BK;
  		break;
  
  	case VO_QUEUE:
  		QueueSelect = QSLT_VO;
  		break;
  
  	case VI_QUEUE:
  		QueueSelect = QSLT_VI;
  		break;
  
  	case MGNT_QUEUE:
  		QueueSelect = QSLT_MGNT;
  		break;
  
  	case BEACON_QUEUE:
  		QueueSelect = QSLT_BEACON;
  		break;
  
  	case TXCMD_QUEUE:
  		QueueSelect = QSLT_CMD;
  		break;
  
  	case HIGH_QUEUE:
  	default:
  		RT_TRACE(COMP_ERR, "Impossible Queue Selection: %d\n", QueueID);
  		break;
  	}
  	return QueueSelect;
  }
  
  static u8 MRateToHwRate8190Pci(u8 rate)
  {
  	u8  ret = DESC90_RATE1M;
  
  	switch(rate) {
  		case MGN_1M:	ret = DESC90_RATE1M;		break;
  		case MGN_2M:	ret = DESC90_RATE2M;		break;
  		case MGN_5_5M:	ret = DESC90_RATE5_5M;	break;
  		case MGN_11M:	ret = DESC90_RATE11M;	break;
  		case MGN_6M:	ret = DESC90_RATE6M;		break;
  		case MGN_9M:	ret = DESC90_RATE9M;		break;
  		case MGN_12M:	ret = DESC90_RATE12M;	break;
  		case MGN_18M:	ret = DESC90_RATE18M;	break;
  		case MGN_24M:	ret = DESC90_RATE24M;	break;
  		case MGN_36M:	ret = DESC90_RATE36M;	break;
  		case MGN_48M:	ret = DESC90_RATE48M;	break;
  		case MGN_54M:	ret = DESC90_RATE54M;	break;
  
  		// HT rate since here
  		case MGN_MCS0:	ret = DESC90_RATEMCS0;	break;
  		case MGN_MCS1:	ret = DESC90_RATEMCS1;	break;
  		case MGN_MCS2:	ret = DESC90_RATEMCS2;	break;
  		case MGN_MCS3:	ret = DESC90_RATEMCS3;	break;
  		case MGN_MCS4:	ret = DESC90_RATEMCS4;	break;
  		case MGN_MCS5:	ret = DESC90_RATEMCS5;	break;
  		case MGN_MCS6:	ret = DESC90_RATEMCS6;	break;
  		case MGN_MCS7:	ret = DESC90_RATEMCS7;	break;
  		case MGN_MCS8:	ret = DESC90_RATEMCS8;	break;
  		case MGN_MCS9:	ret = DESC90_RATEMCS9;	break;
  		case MGN_MCS10:	ret = DESC90_RATEMCS10;	break;
  		case MGN_MCS11:	ret = DESC90_RATEMCS11;	break;
  		case MGN_MCS12:	ret = DESC90_RATEMCS12;	break;
  		case MGN_MCS13:	ret = DESC90_RATEMCS13;	break;
  		case MGN_MCS14:	ret = DESC90_RATEMCS14;	break;
  		case MGN_MCS15:	ret = DESC90_RATEMCS15;	break;
  		case (0x80|0x20): ret = DESC90_RATEMCS32; break;
  
  		default:       break;
  	}
  	return ret;
  }
  
  
  static u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
  {
  	u8   tmp_Short;
  
  	tmp_Short = (TxHT==1)?((tcb_desc->bUseShortGI)?1:0):((tcb_desc->bUseShortPreamble)?1:0);
  
  	if(TxHT==1 && TxRate != DESC90_RATEMCS15)
  		tmp_Short = 0;
  
  	return tmp_Short;
  }
  
  /*
   * The tx procedure is just as following,
   * skb->cb will contain all the following information,
   * priority, morefrag, rate, &dev.
   */
  static short rtl8192_tx(struct r8192_priv *priv, struct sk_buff* skb)
  {
  	struct rtl8192_tx_ring *ring;
  	unsigned long flags;
  	cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
  	tx_desc_819x_pci *pdesc = NULL;
  	TX_FWINFO_8190PCI *pTxFwInfo = NULL;
  	dma_addr_t mapping;
  	bool multi_addr = false, broad_addr = false, uni_addr = false;
  	u8 *pda_addr = NULL;
  	int idx;
  
  	if (priv->bdisable_nic) {
  		RT_TRACE(COMP_ERR, "Nic is disabled! Can't tx packet len=%d qidx=%d!!!\n",
  			 skb->len, tcb_desc->queue_index);
  		return skb->len;
  	}
  
  #ifdef ENABLE_LPS
  	priv->ieee80211->bAwakePktSent = true;
  #endif
  
  	mapping = pci_map_single(priv->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
  
  	/* collect the tx packets statitcs */
  	pda_addr = ((u8 *)skb->data) + sizeof(TX_FWINFO_8190PCI);
  	if (is_multicast_ether_addr(pda_addr))
  		multi_addr = true;
  	else if (is_broadcast_ether_addr(pda_addr))
  		broad_addr = true;
  	else
  		uni_addr = true;
  
  	if (uni_addr)
  		priv->stats.txbytesunicast += (u8)(skb->len) - sizeof(TX_FWINFO_8190PCI);
  
  	/* fill tx firmware */
  	pTxFwInfo = (PTX_FWINFO_8190PCI)skb->data;
  	memset(pTxFwInfo, 0, sizeof(TX_FWINFO_8190PCI));
  	pTxFwInfo->TxHT = (tcb_desc->data_rate&0x80) ? 1 : 0;
  	pTxFwInfo->TxRate = MRateToHwRate8190Pci((u8)tcb_desc->data_rate);
  	pTxFwInfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
  	pTxFwInfo->Short = QueryIsShort(pTxFwInfo->TxHT, pTxFwInfo->TxRate, tcb_desc);
  
  	/* Aggregation related */
  	if (tcb_desc->bAMPDUEnable) {
  		pTxFwInfo->AllowAggregation = 1;
  		pTxFwInfo->RxMF = tcb_desc->ampdu_factor;
  		pTxFwInfo->RxAMD = tcb_desc->ampdu_density;
  	} else {
  		pTxFwInfo->AllowAggregation = 0;
  		pTxFwInfo->RxMF = 0;
  		pTxFwInfo->RxAMD = 0;
  	}
  
  	/* Protection mode related */
  	pTxFwInfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
  	pTxFwInfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
  	pTxFwInfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
  	pTxFwInfo->RtsHT = (tcb_desc->rts_rate&0x80) ? 1 : 0;
  	pTxFwInfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
  	pTxFwInfo->RtsBandwidth = 0;
  	pTxFwInfo->RtsSubcarrier = tcb_desc->RTSSC;
  	pTxFwInfo->RtsShort = (pTxFwInfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : (tcb_desc->bRTSUseShortGI? 1 : 0);
  
  	/* Set Bandwidth and sub-channel settings. */
  	if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
  		if (tcb_desc->bPacketBW) {
  			pTxFwInfo->TxBandwidth = 1;
  			/* use duplicated mode */
  			pTxFwInfo->TxSubCarrier = 0;
  		} else {
  			pTxFwInfo->TxBandwidth = 0;
  			pTxFwInfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
  		}
  	} else {
  		pTxFwInfo->TxBandwidth = 0;
  		pTxFwInfo->TxSubCarrier = 0;
  	}
  
  	spin_lock_irqsave(&priv->irq_th_lock, flags);
  	ring = &priv->tx_ring[tcb_desc->queue_index];
  	if (tcb_desc->queue_index != BEACON_QUEUE)
  		idx = (ring->idx + skb_queue_len(&ring->queue)) % ring->entries;
  	else
  		idx = 0;
  
  	pdesc = &ring->desc[idx];
  	if ((pdesc->OWN == 1) && (tcb_desc->queue_index != BEACON_QUEUE)) {
  		RT_TRACE(COMP_ERR, "No more TX desc@%d, ring->idx = %d,idx = %d,%x\n",
  			 tcb_desc->queue_index, ring->idx, idx, skb->len);
  		spin_unlock_irqrestore(&priv->irq_th_lock, flags);
  		return skb->len;
  	}
  
  	/* fill tx descriptor */
  	memset(pdesc, 0, 12);
  
  	/*DWORD 0*/
  	pdesc->LINIP = 0;
  	pdesc->CmdInit = 1;
  	pdesc->Offset = sizeof(TX_FWINFO_8190PCI) + 8; /* We must add 8!! */
  	pdesc->PktSize = (u16)skb->len-sizeof(TX_FWINFO_8190PCI);
  
  	/*DWORD 1*/
  	pdesc->SecCAMID = 0;
  	pdesc->RATid = tcb_desc->RATRIndex;
  
  	pdesc->NoEnc = 1;
  	pdesc->SecType = 0x0;
  	if (tcb_desc->bHwSec) {
  		switch (priv->ieee80211->pairwise_key_type) {
  		case KEY_TYPE_WEP40:
  		case KEY_TYPE_WEP104:
  			pdesc->SecType = 0x1;
  			pdesc->NoEnc = 0;
  			break;
  		case KEY_TYPE_TKIP:
  			pdesc->SecType = 0x2;
  			pdesc->NoEnc = 0;
  			break;
  		case KEY_TYPE_CCMP:
  			pdesc->SecType = 0x3;
  			pdesc->NoEnc = 0;
  			break;
  		case KEY_TYPE_NA:
  			pdesc->SecType = 0x0;
  			pdesc->NoEnc = 1;
  			break;
  		}
  	}
  
  	/* Set Packet ID */
  	pdesc->PktId = 0x0;
  
  	pdesc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
  	pdesc->TxFWInfoSize = sizeof(TX_FWINFO_8190PCI);
  
  	pdesc->DISFB = tcb_desc->bTxDisableRateFallBack;
  	pdesc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
  
  	pdesc->FirstSeg = 1;
  	pdesc->LastSeg = 1;
  	pdesc->TxBufferSize = skb->len;
  
  	pdesc->TxBuffAddr = cpu_to_le32(mapping);
  	__skb_queue_tail(&ring->queue, skb);
  	pdesc->OWN = 1;
  	spin_unlock_irqrestore(&priv->irq_th_lock, flags);
  	priv->ieee80211->dev->trans_start = jiffies;
  	write_nic_word(priv, TPPoll, 0x01<<tcb_desc->queue_index);
  	return 0;
  }
  
  static short rtl8192_alloc_rx_desc_ring(struct r8192_priv *priv)
  {
      rx_desc_819x_pci *entry = NULL;
      int i;
  
      priv->rx_ring = pci_alloc_consistent(priv->pdev,
              sizeof(*priv->rx_ring) * priv->rxringcount, &priv->rx_ring_dma);
  
      if (!priv->rx_ring || (unsigned long)priv->rx_ring & 0xFF) {
          RT_TRACE(COMP_ERR,"Cannot allocate RX ring\n");
          return -ENOMEM;
      }
  
      memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * priv->rxringcount);
      priv->rx_idx = 0;
  
      for (i = 0; i < priv->rxringcount; i++) {
          struct sk_buff *skb = dev_alloc_skb(priv->rxbuffersize);
          dma_addr_t *mapping;
          entry = &priv->rx_ring[i];
          if (!skb)
              return 0;
          priv->rx_buf[i] = skb;
          mapping = (dma_addr_t *)skb->cb;
          *mapping = pci_map_single(priv->pdev, skb_tail_pointer(skb),
                  priv->rxbuffersize, PCI_DMA_FROMDEVICE);
  
          entry->BufferAddress = cpu_to_le32(*mapping);
  
          entry->Length = priv->rxbuffersize;
          entry->OWN = 1;
      }
  
      entry->EOR = 1;
      return 0;
  }
  
  static int rtl8192_alloc_tx_desc_ring(struct r8192_priv *priv,
          unsigned int prio, unsigned int entries)
  {
      tx_desc_819x_pci *ring;
      dma_addr_t dma;
      int i;
  
      ring = pci_alloc_consistent(priv->pdev, sizeof(*ring) * entries, &dma);
      if (!ring || (unsigned long)ring & 0xFF) {
          RT_TRACE(COMP_ERR, "Cannot allocate TX ring (prio = %d)\n", prio);
          return -ENOMEM;
      }
  
      memset(ring, 0, sizeof(*ring)*entries);
      priv->tx_ring[prio].desc = ring;
      priv->tx_ring[prio].dma = dma;
      priv->tx_ring[prio].idx = 0;
      priv->tx_ring[prio].entries = entries;
      skb_queue_head_init(&priv->tx_ring[prio].queue);
  
      for (i = 0; i < entries; i++)
          ring[i].NextDescAddress =
              cpu_to_le32((u32)dma + ((i + 1) % entries) * sizeof(*ring));
  
      return 0;
  }
  
  static short rtl8192_pci_initdescring(struct r8192_priv *priv)
  {
  	u32 ret;
  	int i;
  
  	ret = rtl8192_alloc_rx_desc_ring(priv);
  	if (ret)
  		return ret;
  
  	/* general process for other queue */
  	for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
  		ret = rtl8192_alloc_tx_desc_ring(priv, i, priv->txringcount);
  		if (ret)
  			goto err_free_rings;
  	}
  
  	return 0;
  
  err_free_rings:
  	rtl8192_free_rx_ring(priv);
  	for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
  		if (priv->tx_ring[i].desc)
  			rtl8192_free_tx_ring(priv, i);
  	return 1;
  }
  
  static void rtl8192_pci_resetdescring(struct r8192_priv *priv)
  {
      int i;
  
      /* force the rx_idx to the first one */
      if(priv->rx_ring) {
          rx_desc_819x_pci *entry = NULL;
          for (i = 0; i < priv->rxringcount; i++) {
              entry = &priv->rx_ring[i];
              entry->OWN = 1;
          }
          priv->rx_idx = 0;
      }
  
      /* after reset, release previous pending packet, and force the
       * tx idx to the first one */
      for (i = 0; i < MAX_TX_QUEUE_COUNT; i++) {
          if (priv->tx_ring[i].desc) {
              struct rtl8192_tx_ring *ring = &priv->tx_ring[i];
  
              while (skb_queue_len(&ring->queue)) {
                  tx_desc_819x_pci *entry = &ring->desc[ring->idx];
                  struct sk_buff *skb = __skb_dequeue(&ring->queue);
  
                  pci_unmap_single(priv->pdev, le32_to_cpu(entry->TxBuffAddr),
                          skb->len, PCI_DMA_TODEVICE);
                  kfree_skb(skb);
                  ring->idx = (ring->idx + 1) % ring->entries;
              }
              ring->idx = 0;
          }
      }
  }
  
  static void rtl8192_link_change(struct ieee80211_device *ieee)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee->dev);
  
  	if (ieee->state == IEEE80211_LINKED)
  	{
  		rtl8192_net_update(priv);
  		rtl8192_update_ratr_table(priv);
  
  		//add this as in pure N mode, wep encryption will use software way, but there is no chance to set this as wep will not set group key in wext. WB.2008.07.08
  		if ((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type))
  		EnableHWSecurityConfig8192(priv);
  	}
  	else
  	{
  		write_nic_byte(priv, 0x173, 0);
  	}
  
  	rtl8192_update_msr(priv);
  
  	// 2007/10/16 MH MAC Will update TSF according to all received beacon, so we have
  	//	// To set CBSSID bit when link with any AP or STA.
  	if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC)
  	{
  		u32 reg = 0;
  		reg = read_nic_dword(priv, RCR);
  		if (priv->ieee80211->state == IEEE80211_LINKED)
  			priv->ReceiveConfig = reg |= RCR_CBSSID;
  		else
  			priv->ReceiveConfig = reg &= ~RCR_CBSSID;
  		write_nic_dword(priv, RCR, reg);
  	}
  }
  
  
  static const struct ieee80211_qos_parameters def_qos_parameters = {
          {3,3,3,3},/* cw_min */
          {7,7,7,7},/* cw_max */
          {2,2,2,2},/* aifs */
          {0,0,0,0},/* flags */
          {0,0,0,0} /* tx_op_limit */
  };
  
  static void rtl8192_update_beacon(struct work_struct * work)
  {
          struct r8192_priv *priv = container_of(work, struct r8192_priv, update_beacon_wq.work);
   	struct ieee80211_device* ieee = priv->ieee80211;
  	struct ieee80211_network* net = &ieee->current_network;
  
  	if (ieee->pHTInfo->bCurrentHTSupport)
  		HTUpdateSelfAndPeerSetting(ieee, net);
  	ieee->pHTInfo->bCurrentRT2RTLongSlotTime = net->bssht.bdRT2RTLongSlotTime;
  	rtl8192_update_cap(priv, net->capability);
  }
  
  /*
  * background support to run QoS activate functionality
  */
  static const int WDCAPARA_ADD[] = {EDCAPARA_BE,EDCAPARA_BK,EDCAPARA_VI,EDCAPARA_VO};
  static void rtl8192_qos_activate(struct work_struct * work)
  {
          struct r8192_priv *priv = container_of(work, struct r8192_priv, qos_activate);
          struct ieee80211_qos_parameters *qos_parameters = &priv->ieee80211->current_network.qos_data.parameters;
          u8 mode = priv->ieee80211->current_network.mode;
  	u8  u1bAIFS;
  	u32 u4bAcParam;
          int i;
  
          mutex_lock(&priv->mutex);
          if(priv->ieee80211->state != IEEE80211_LINKED)
  		goto success;
  	RT_TRACE(COMP_QOS,"qos active process with associate response received\n");
  	/* It better set slot time at first */
  	/* For we just support b/g mode at present, let the slot time at 9/20 selection */
  	/* update the ac parameter to related registers */
  	for(i = 0; i <  QOS_QUEUE_NUM; i++) {
  		//Mode G/A: slotTimeTimer = 9; Mode B: 20
  		u1bAIFS = qos_parameters->aifs[i] * ((mode&(IEEE_G|IEEE_N_24G)) ?9:20) + aSifsTime;
  		u4bAcParam = ((((u32)(qos_parameters->tx_op_limit[i]))<< AC_PARAM_TXOP_LIMIT_OFFSET)|
  				(((u32)(qos_parameters->cw_max[i]))<< AC_PARAM_ECW_MAX_OFFSET)|
  				(((u32)(qos_parameters->cw_min[i]))<< AC_PARAM_ECW_MIN_OFFSET)|
  				((u32)u1bAIFS << AC_PARAM_AIFS_OFFSET));
  		write_nic_dword(priv, WDCAPARA_ADD[i], u4bAcParam);
  	}
  
  success:
          mutex_unlock(&priv->mutex);
  }
  
  static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv,
  		int active_network,
  		struct ieee80211_network *network)
  {
  	int ret = 0;
  	u32 size = sizeof(struct ieee80211_qos_parameters);
  
  	if(priv->ieee80211->state !=IEEE80211_LINKED)
                  return ret;
  
          if ((priv->ieee80211->iw_mode != IW_MODE_INFRA))
                  return ret;
  
  	if (network->flags & NETWORK_HAS_QOS_MASK) {
  		if (active_network &&
  				(network->flags & NETWORK_HAS_QOS_PARAMETERS))
  			network->qos_data.active = network->qos_data.supported;
  
  		if ((network->qos_data.active == 1) && (active_network == 1) &&
  				(network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
  				(network->qos_data.old_param_count !=
  				 network->qos_data.param_count)) {
  			network->qos_data.old_param_count =
  				network->qos_data.param_count;
  			queue_work(priv->priv_wq, &priv->qos_activate);
  			RT_TRACE (COMP_QOS, "QoS parameters change call "
  					"qos_activate\n");
  		}
  	} else {
  		memcpy(&priv->ieee80211->current_network.qos_data.parameters,
  		       &def_qos_parameters, size);
  
  		if ((network->qos_data.active == 1) && (active_network == 1)) {
  			queue_work(priv->priv_wq, &priv->qos_activate);
  			RT_TRACE(COMP_QOS, "QoS was disabled call qos_activate\n");
  		}
  		network->qos_data.active = 0;
  		network->qos_data.supported = 0;
  	}
  
  	return 0;
  }
  
  /* handle manage frame frame beacon and probe response */
  static int rtl8192_handle_beacon(struct ieee80211_device *ieee,
                                struct ieee80211_beacon * beacon,
                                struct ieee80211_network * network)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee->dev);
  
  	rtl8192_qos_handle_probe_response(priv,1,network);
  
  	queue_delayed_work(priv->priv_wq, &priv->update_beacon_wq, 0);
  	return 0;
  
  }
  
  /*
   * handling the beaconing responses. if we get different QoS setting
   * off the network from the associated setting, adjust the QoS setting
   */
  static int rtl8192_qos_association_resp(struct r8192_priv *priv,
                                      struct ieee80211_network *network)
  {
  	int ret = 0;
  	unsigned long flags;
  	u32 size = sizeof(struct ieee80211_qos_parameters);
  	int set_qos_param = 0;
  
  	if ((priv == NULL) || (network == NULL))
  		return ret;
  
  	if (priv->ieee80211->state != IEEE80211_LINKED)
  		return ret;
  
  	if ((priv->ieee80211->iw_mode != IW_MODE_INFRA))
  		return ret;
  
  	spin_lock_irqsave(&priv->ieee80211->lock, flags);
  	if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
  		memcpy(&priv->ieee80211->current_network.qos_data.parameters,
  			 &network->qos_data.parameters,
  			sizeof(struct ieee80211_qos_parameters));
  		priv->ieee80211->current_network.qos_data.active = 1;
  		set_qos_param = 1;
  		/* update qos parameter for current network */
  		priv->ieee80211->current_network.qos_data.old_param_count =
  			priv->ieee80211->current_network.qos_data.param_count;
  		priv->ieee80211->current_network.qos_data.param_count =
  			network->qos_data.param_count;
  
  	} else {
  		memcpy(&priv->ieee80211->current_network.qos_data.parameters,
  		       &def_qos_parameters, size);
  		priv->ieee80211->current_network.qos_data.active = 0;
  		priv->ieee80211->current_network.qos_data.supported = 0;
  		set_qos_param = 1;
  	}
  
  	spin_unlock_irqrestore(&priv->ieee80211->lock, flags);
  
  	RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __FUNCTION__,
  		network->flags, priv->ieee80211->current_network.qos_data.active);
  	if (set_qos_param == 1)
  		queue_work(priv->priv_wq, &priv->qos_activate);
  
  	return ret;
  }
  
  
  static int rtl8192_handle_assoc_response(struct ieee80211_device *ieee,
                                       struct ieee80211_assoc_response_frame *resp,
                                       struct ieee80211_network *network)
  {
          struct r8192_priv *priv = ieee80211_priv(ieee->dev);
          rtl8192_qos_association_resp(priv, network);
          return 0;
  }
  
  
  /* updateRATRTabel for MCS only. Basic rate is not implemented. */
  static void rtl8192_update_ratr_table(struct r8192_priv* priv)
  {
  	struct ieee80211_device* ieee = priv->ieee80211;
  	u8* pMcsRate = ieee->dot11HTOperationalRateSet;
  	u32 ratr_value = 0;
  	u8 rate_index = 0;
  
  	rtl8192_config_rate(priv, (u16*)(&ratr_value));
  	ratr_value |= (*(u16*)(pMcsRate)) << 12;
  
  	switch (ieee->mode)
  	{
  		case IEEE_A:
  			ratr_value &= 0x00000FF0;
  			break;
  		case IEEE_B:
  			ratr_value &= 0x0000000F;
  			break;
  		case IEEE_G:
  			ratr_value &= 0x00000FF7;
  			break;
  		case IEEE_N_24G:
  		case IEEE_N_5G:
  			if (ieee->pHTInfo->PeerMimoPs == 0) //MIMO_PS_STATIC
  				ratr_value &= 0x0007F007;
  			else{
  				if (priv->rf_type == RF_1T2R)
  					ratr_value &= 0x000FF007;
  				else
  					ratr_value &= 0x0F81F007;
  			}
  			break;
  		default:
  			break;
  	}
  	ratr_value &= 0x0FFFFFFF;
  	if(ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz){
  		ratr_value |= 0x80000000;
  	}else if(!ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI20MHz){
  		ratr_value |= 0x80000000;
  	}
  	write_nic_dword(priv, RATR0+rate_index*4, ratr_value);
  	write_nic_byte(priv, UFWP, 1);
  }
  
  static bool GetNmodeSupportBySecCfg8190Pci(struct ieee80211_device *ieee)
  {
  	return !(ieee->rtllib_ap_sec_type &&
  		 (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP)));
  }
  
  static void rtl8192_refresh_supportrate(struct r8192_priv* priv)
  {
  	struct ieee80211_device* ieee = priv->ieee80211;
  	//we donot consider set support rate for ABG mode, only HT MCS rate is set here.
  	if (ieee->mode == WIRELESS_MODE_N_24G || ieee->mode == WIRELESS_MODE_N_5G)
  	{
  		memcpy(ieee->Regdot11HTOperationalRateSet, ieee->RegHTSuppRateSet, 16);
  	}
  	else
  		memset(ieee->Regdot11HTOperationalRateSet, 0, 16);
  }
  
  static u8 rtl8192_getSupportedWireleeMode(void)
  {
  	return (WIRELESS_MODE_N_24G|WIRELESS_MODE_G|WIRELESS_MODE_B);
  }
  
  static void rtl8192_SetWirelessMode(struct ieee80211_device *ieee, u8 wireless_mode)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee->dev);
  	u8 bSupportMode = rtl8192_getSupportedWireleeMode();
  
  	if ((wireless_mode == WIRELESS_MODE_AUTO) || ((wireless_mode&bSupportMode)==0))
  	{
  		if(bSupportMode & WIRELESS_MODE_N_24G)
  		{
  			wireless_mode = WIRELESS_MODE_N_24G;
  		}
  		else if(bSupportMode & WIRELESS_MODE_N_5G)
  		{
  			wireless_mode = WIRELESS_MODE_N_5G;
  		}
  		else if((bSupportMode & WIRELESS_MODE_A))
  		{
  			wireless_mode = WIRELESS_MODE_A;
  		}
  		else if((bSupportMode & WIRELESS_MODE_G))
  		{
  			wireless_mode = WIRELESS_MODE_G;
  		}
  		else if((bSupportMode & WIRELESS_MODE_B))
  		{
  			wireless_mode = WIRELESS_MODE_B;
  		}
  		else{
  			RT_TRACE(COMP_ERR, "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", __FUNCTION__,bSupportMode);
  			wireless_mode = WIRELESS_MODE_B;
  		}
  	}
  	priv->ieee80211->mode = wireless_mode;
  
  	if ((wireless_mode == WIRELESS_MODE_N_24G) ||  (wireless_mode == WIRELESS_MODE_N_5G))
  		priv->ieee80211->pHTInfo->bEnableHT = 1;
  	else
  		priv->ieee80211->pHTInfo->bEnableHT = 0;
  	RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode);
  	rtl8192_refresh_supportrate(priv);
  }
  
  static bool GetHalfNmodeSupportByAPs819xPci(struct ieee80211_device* ieee)
  {
  	return ieee->bHalfWirelessN24GMode;
  }
  
  static short rtl8192_is_tx_queue_empty(struct ieee80211_device *ieee)
  {
  	int i=0;
  	struct r8192_priv *priv = ieee80211_priv(ieee->dev);
  
  	for (i=0; i<=MGNT_QUEUE; i++)
  	{
  		if ((i== TXCMD_QUEUE) || (i == HCCA_QUEUE) )
  			continue;
  		if (skb_queue_len(&(&priv->tx_ring[i])->queue) > 0){
  			printk("===>tx queue is not empty:%d, %d\n", i, skb_queue_len(&(&priv->tx_ring[i])->queue));
  			return 0;
  		}
  	}
  	return 1;
  }
  
  static void rtl8192_hw_sleep_down(struct r8192_priv *priv)
  {
  	MgntActSet_RF_State(priv, eRfSleep, RF_CHANGE_BY_PS);
  }
  
  static void rtl8192_hw_wakeup(struct ieee80211_device *ieee)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee->dev);
  	MgntActSet_RF_State(priv, eRfOn, RF_CHANGE_BY_PS);
  }
  
  static void rtl8192_hw_wakeup_wq (struct work_struct *work)
  {
  	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
  	struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,hw_wakeup_wq);
  
  	rtl8192_hw_wakeup(ieee);
  }
  
  #define MIN_SLEEP_TIME 50
  #define MAX_SLEEP_TIME 10000
  static void rtl8192_hw_to_sleep(struct ieee80211_device *ieee, u32 th, u32 tl)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee->dev);
  	u32 tmp;
  	u32 rb = jiffies;
  
  	// Writing HW register with 0 equals to disable
  	// the timer, that is not really what we want
  	//
  	tl -= MSECS(8+16+7);
  
  	// If the interval in witch we are requested to sleep is too
  	// short then give up and remain awake
  	// when we sleep after send null frame, the timer will be too short to sleep.
  	//
  	if(((tl>=rb)&& (tl-rb) <= MSECS(MIN_SLEEP_TIME))
  			||((rb>tl)&& (rb-tl) < MSECS(MIN_SLEEP_TIME))) {
  		printk("too short to sleep::%x, %x, %lx\n",tl, rb,  MSECS(MIN_SLEEP_TIME));
  		return;
  	}
  
  	if(((tl > rb) && ((tl-rb) > MSECS(MAX_SLEEP_TIME)))||
  			((tl < rb) && (tl>MSECS(69)) && ((rb-tl) > MSECS(MAX_SLEEP_TIME)))||
  			((tl<rb)&&(tl<MSECS(69))&&((tl+0xffffffff-rb)>MSECS(MAX_SLEEP_TIME)))) {
  		printk("========>too long to sleep:%x, %x, %lx\n", tl, rb,  MSECS(MAX_SLEEP_TIME));
  		return;
  	}
  
  	tmp = (tl>rb)?(tl-rb):(rb-tl);
  	queue_delayed_work(priv->ieee80211->wq,
  			   &priv->ieee80211->hw_wakeup_wq,tmp);
  
          rtl8192_hw_sleep_down(priv);
  }
  
  static void rtl8192_init_priv_variable(struct r8192_priv *priv)
  {
  	u8 i;
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  
  	// Default Halt the NIC if RF is OFF.
  	pPSC->RegRfPsLevel |= RT_RF_OFF_LEVL_HALT_NIC;
  	pPSC->RegRfPsLevel |= RT_RF_OFF_LEVL_CLK_REQ;
  	pPSC->RegRfPsLevel |= RT_RF_OFF_LEVL_ASPM;
  	pPSC->RegRfPsLevel |= RT_RF_LPS_LEVEL_ASPM;
  	pPSC->bLeisurePs = true;
  	priv->ieee80211->RegMaxLPSAwakeIntvl = 5;
  	priv->bHwRadioOff = false;
  
  	priv->being_init_adapter = false;
  	priv->txringcount = 64;//32;
  	priv->rxbuffersize = 9100;//2048;//1024;
  	priv->rxringcount = MAX_RX_COUNT;//64;
  	priv->chan = 1; //set to channel 1
  	priv->RegWirelessMode = WIRELESS_MODE_AUTO;
  	priv->RegChannelPlan = 0xf;
  	priv->ieee80211->mode = WIRELESS_MODE_AUTO; //SET AUTO
  	priv->ieee80211->iw_mode = IW_MODE_INFRA;
  	priv->ieee80211->ieee_up=0;
  	priv->retry_rts = DEFAULT_RETRY_RTS;
  	priv->retry_data = DEFAULT_RETRY_DATA;
  	priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD;
  	priv->ieee80211->rate = 110; //11 mbps
  	priv->ieee80211->short_slot = 1;
  	priv->promisc = (priv->ieee80211->dev->flags & IFF_PROMISC) ? 1:0;
  	priv->bcck_in_ch14 = false;
  	priv->CCKPresentAttentuation = 0;
  	priv->rfa_txpowertrackingindex = 0;
  	priv->rfc_txpowertrackingindex = 0;
  	priv->CckPwEnl = 6;
  	//added by amy for silent reset
  	priv->ResetProgress = RESET_TYPE_NORESET;
  	priv->bForcedSilentReset = 0;
  	priv->bDisableNormalResetCheck = false;
  	priv->force_reset = false;
  	//added by amy for power save
  	priv->RfOffReason = 0;
  	priv->bHwRfOffAction = 0;
  	priv->PowerSaveControl.bInactivePs = true;
  	priv->PowerSaveControl.bIPSModeBackup = false;
  
  	priv->ieee80211->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
  	priv->ieee80211->iw_mode = IW_MODE_INFRA;
  	priv->ieee80211->softmac_features  = IEEE_SOFTMAC_SCAN |
  		IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
  		IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE;/* |
  		IEEE_SOFTMAC_BEACONS;*///added by amy 080604 //|  //IEEE_SOFTMAC_SINGLE_QUEUE;
  
  	priv->ieee80211->active_scan = 1;
  	priv->ieee80211->modulation = IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION;
  	priv->ieee80211->host_encrypt = 1;
  	priv->ieee80211->host_decrypt = 1;
  	priv->ieee80211->start_send_beacons = rtl8192_start_beacon;
  	priv->ieee80211->stop_send_beacons = rtl8192_stop_beacon;
  	priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit;
  	priv->ieee80211->set_chan = rtl8192_set_chan;
  	priv->ieee80211->link_change = rtl8192_link_change;
  	priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit;
  	priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop;
  	priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume;
  	priv->ieee80211->init_wmmparam_flag = 0;
  	priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
  	priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc;
  	priv->ieee80211->tx_headroom = sizeof(TX_FWINFO_8190PCI);
  	priv->ieee80211->qos_support = 1;
  	priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode;
  	priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response;
  	priv->ieee80211->handle_beacon = rtl8192_handle_beacon;
  
  	priv->ieee80211->sta_wake_up = rtl8192_hw_wakeup;
  	priv->ieee80211->enter_sleep_state = rtl8192_hw_to_sleep;
  	priv->ieee80211->ps_is_queue_empty = rtl8192_is_tx_queue_empty;
  	priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8190Pci;
  	priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode;
  	priv->ieee80211->GetHalfNmodeSupportByAPsHandler = GetHalfNmodeSupportByAPs819xPci;
  
  	priv->ieee80211->InitialGainHandler = InitialGain819xPci;
  
  #ifdef ENABLE_IPS
  	priv->ieee80211->ieee80211_ips_leave_wq = ieee80211_ips_leave_wq;
  	priv->ieee80211->ieee80211_ips_leave = ieee80211_ips_leave;
  #endif
  #ifdef ENABLE_LPS
          priv->ieee80211->LeisurePSLeave            = LeisurePSLeave;
  #endif
  
  	priv->ieee80211->SetHwRegHandler = rtl8192e_SetHwReg;
  	priv->ieee80211->rtllib_ap_sec_type = rtl8192e_ap_sec_type;
  
  	priv->ShortRetryLimit = 0x30;
  	priv->LongRetryLimit = 0x30;
  
  	priv->ReceiveConfig = RCR_ADD3	|
  		RCR_AMF | RCR_ADF |		//accept management/data
  		RCR_AICV |			//accept control frame for SW AP needs PS-poll, 2005.07.07, by rcnjko.
  		RCR_AB | RCR_AM | RCR_APM |	//accept BC/MC/UC
  		RCR_AAP | ((u32)7<<RCR_MXDMA_OFFSET) |
  		((u32)7 << RCR_FIFO_OFFSET) | RCR_ONLYERLPKT;
  
  	priv->pFirmware = vzalloc(sizeof(rt_firmware));
  
  	/* rx related queue */
  	skb_queue_head_init(&priv->skb_queue);
  
  	/* Tx related queue */
  	for(i = 0; i < MAX_QUEUE_SIZE; i++) {
  		skb_queue_head_init(&priv->ieee80211->skb_waitQ [i]);
  	}
  	for(i = 0; i < MAX_QUEUE_SIZE; i++) {
  		skb_queue_head_init(&priv->ieee80211->skb_aggQ [i]);
  	}
  	priv->rf_set_chan = rtl8192_phy_SwChnl;
  }
  
  static void rtl8192_init_priv_lock(struct r8192_priv* priv)
  {
  	spin_lock_init(&priv->irq_th_lock);
  	spin_lock_init(&priv->rf_ps_lock);
  	sema_init(&priv->wx_sem,1);
  	sema_init(&priv->rf_sem,1);
  	mutex_init(&priv->mutex);
  }
  
  /* init tasklet and wait_queue here */
  #define DRV_NAME "wlan0"
  static void rtl8192_init_priv_task(struct r8192_priv *priv)
  {
  	priv->priv_wq = create_workqueue(DRV_NAME);
  
  #ifdef ENABLE_IPS
  	INIT_WORK(&priv->ieee80211->ips_leave_wq, IPSLeave_wq);
  #endif
  
  	INIT_WORK(&priv->reset_wq,  rtl8192_restart);
  	INIT_DELAYED_WORK(&priv->watch_dog_wq, rtl819x_watchdog_wqcallback);
  	INIT_DELAYED_WORK(&priv->txpower_tracking_wq,  dm_txpower_trackingcallback);
  	INIT_DELAYED_WORK(&priv->rfpath_check_wq,  dm_rf_pathcheck_workitemcallback);
  	INIT_DELAYED_WORK(&priv->update_beacon_wq, rtl8192_update_beacon);
  	INIT_WORK(&priv->qos_activate, rtl8192_qos_activate);
  	INIT_DELAYED_WORK(&priv->ieee80211->hw_wakeup_wq, rtl8192_hw_wakeup_wq);
  
  	tasklet_init(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet,
  		     (unsigned long) priv);
  	tasklet_init(&priv->irq_tx_tasklet, rtl8192_irq_tx_tasklet,
  		     (unsigned long) priv);
          tasklet_init(&priv->irq_prepare_beacon_tasklet, rtl8192_prepare_beacon,
  		     (unsigned long) priv);
  }
  
  static void rtl8192_get_eeprom_size(struct r8192_priv *priv)
  {
  	u16 curCR = 0;
  	RT_TRACE(COMP_INIT, "===========>%s()\n", __FUNCTION__);
  	curCR = read_nic_dword(priv, EPROM_CMD);
  	RT_TRACE(COMP_INIT, "read from Reg Cmd9346CR(%x):%x\n", EPROM_CMD, curCR);
  	//whether need I consider BIT5?
  	priv->epromtype = (curCR & EPROM_CMD_9356SEL) ? EPROM_93c56 : EPROM_93c46;
  	RT_TRACE(COMP_INIT, "<===========%s(), epromtype:%d\n", __FUNCTION__, priv->epromtype);
  }
  
  /*
   * Adapter->EEPROMAddressSize should be set before this function call.
   *  EEPROM address size can be got through GetEEPROMSize8185()
   */
  static void rtl8192_read_eeprom_info(struct r8192_priv *priv)
  {
  	struct net_device *dev = priv->ieee80211->dev;
  	u8			tempval;
  	u8			ICVer8192, ICVer8256;
  	u16			i,usValue, IC_Version;
  	u16			EEPROMId;
  	u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x01};
  	RT_TRACE(COMP_INIT, "====> rtl8192_read_eeprom_info\n");
  
  
  	// TODO: I don't know if we need to apply EF function to EEPROM read function
  
  	//2 Read EEPROM ID to make sure autoload is success
  	EEPROMId = eprom_read(priv, 0);
  	if( EEPROMId != RTL8190_EEPROM_ID )
  	{
  		RT_TRACE(COMP_ERR, "EEPROM ID is invalid:%x, %x\n", EEPROMId, RTL8190_EEPROM_ID);
  		priv->AutoloadFailFlag=true;
  	}
  	else
  	{
  		priv->AutoloadFailFlag=false;
  	}
  
  	//
  	// Assign Chip Version ID
  	//
  	// Read IC Version && Channel Plan
  	if(!priv->AutoloadFailFlag)
  	{
  		// VID, PID
  		priv->eeprom_vid = eprom_read(priv, (EEPROM_VID >> 1));
  		priv->eeprom_did = eprom_read(priv, (EEPROM_DID >> 1));
  
  		usValue = eprom_read(priv, (u16)(EEPROM_Customer_ID>>1)) >> 8 ;
  		priv->eeprom_CustomerID = (u8)( usValue & 0xff);
  		usValue = eprom_read(priv, (EEPROM_ICVersion_ChannelPlan>>1));
  		priv->eeprom_ChannelPlan = usValue&0xff;
  		IC_Version = ((usValue&0xff00)>>8);
  
  		ICVer8192 = (IC_Version&0xf);		//bit0~3; 1:A cut, 2:B cut, 3:C cut...
  		ICVer8256 = ((IC_Version&0xf0)>>4);//bit4~6, bit7 reserved for other RF chip; 1:A cut, 2:B cut, 3:C cut...
  		RT_TRACE(COMP_INIT, "ICVer8192 = 0x%x\n", ICVer8192);
  		RT_TRACE(COMP_INIT, "ICVer8256 = 0x%x\n", ICVer8256);
  		if(ICVer8192 == 0x2)	//B-cut
  		{
  			if(ICVer8256 == 0x5) //E-cut
  				priv->card_8192_version= VERSION_8190_BE;
  		}
  
  		switch(priv->card_8192_version)
  		{
  			case VERSION_8190_BD:
  			case VERSION_8190_BE:
  				break;
  			default:
  				priv->card_8192_version = VERSION_8190_BD;
  				break;
  		}
  		RT_TRACE(COMP_INIT, "\nIC Version = 0x%x\n", priv->card_8192_version);
  	}
  	else
  	{
  		priv->card_8192_version = VERSION_8190_BD;
  		priv->eeprom_vid = 0;
  		priv->eeprom_did = 0;
  		priv->eeprom_CustomerID = 0;
  		priv->eeprom_ChannelPlan = 0;
  		RT_TRACE(COMP_INIT, "IC Version = 0x%x\n", 0xff);
  	}
  
  	RT_TRACE(COMP_INIT, "EEPROM VID = 0x%4x\n", priv->eeprom_vid);
  	RT_TRACE(COMP_INIT, "EEPROM DID = 0x%4x\n", priv->eeprom_did);
  	RT_TRACE(COMP_INIT,"EEPROM Customer ID: 0x%2x\n", priv->eeprom_CustomerID);
  
  	//2 Read Permanent MAC address
  	if(!priv->AutoloadFailFlag)
  	{
  		for(i = 0; i < 6; i += 2)
  		{
  			usValue = eprom_read(priv, (u16) ((EEPROM_NODE_ADDRESS_BYTE_0+i)>>1));
  			*(u16*)(&dev->dev_addr[i]) = usValue;
  		}
  	} else {
  		// when auto load failed,  the last address byte set to be a random one.
  		// added by david woo.2007/11/7
  		memcpy(dev->dev_addr, bMac_Tmp_Addr, 6);
  	}
  
  	RT_TRACE(COMP_INIT, "Permanent Address = %pM\n", dev->dev_addr);
  
  		//2 TX Power Check EEPROM Fail or not
  	if(priv->card_8192_version > VERSION_8190_BD) {
  		priv->bTXPowerDataReadFromEEPORM = true;
  	} else {
  		priv->bTXPowerDataReadFromEEPORM = false;
  	}
  
  	// 2007/11/15 MH 8190PCI Default=2T4R, 8192PCIE default=1T2R
  	priv->rf_type = RTL819X_DEFAULT_RF_TYPE;
  
  	if(priv->card_8192_version > VERSION_8190_BD)
  	{
  		// Read RF-indication and Tx Power gain index diff of legacy to HT OFDM rate.
  		if(!priv->AutoloadFailFlag)
  		{
  			tempval = (eprom_read(priv, (EEPROM_RFInd_PowerDiff>>1))) & 0xff;
  			priv->EEPROMLegacyHTTxPowerDiff = tempval & 0xf;	// bit[3:0]
  
  			if (tempval&0x80)	//RF-indication, bit[7]
  				priv->rf_type = RF_1T2R;
  			else
  				priv->rf_type = RF_2T4R;
  		}
  		else
  		{
  			priv->EEPROMLegacyHTTxPowerDiff = EEPROM_Default_LegacyHTTxPowerDiff;
  		}
  		RT_TRACE(COMP_INIT, "EEPROMLegacyHTTxPowerDiff = %d\n",
  			priv->EEPROMLegacyHTTxPowerDiff);
  
  		// Read ThermalMeter from EEPROM
  		if(!priv->AutoloadFailFlag)
  		{
  			priv->EEPROMThermalMeter = (u8)(((eprom_read(priv, (EEPROM_ThermalMeter>>1))) & 0xff00)>>8);
  		}
  		else
  		{
  			priv->EEPROMThermalMeter = EEPROM_Default_ThermalMeter;
  		}
  		RT_TRACE(COMP_INIT, "ThermalMeter = %d\n", priv->EEPROMThermalMeter);
  		//vivi, for tx power track
  		priv->TSSI_13dBm = priv->EEPROMThermalMeter *100;
  
  		if(priv->epromtype == EPROM_93c46)
  		{
  		// Read antenna tx power offset of B/C/D to A and CrystalCap from EEPROM
  		if(!priv->AutoloadFailFlag)
  		{
  				usValue = eprom_read(priv, (EEPROM_TxPwDiff_CrystalCap>>1));
  				priv->EEPROMAntPwDiff = (usValue&0x0fff);
  				priv->EEPROMCrystalCap = (u8)((usValue&0xf000)>>12);
  		}
  		else
  		{
  				priv->EEPROMAntPwDiff = EEPROM_Default_AntTxPowerDiff;
  				priv->EEPROMCrystalCap = EEPROM_Default_TxPwDiff_CrystalCap;
  		}
  			RT_TRACE(COMP_INIT, "EEPROMAntPwDiff = %d\n", priv->EEPROMAntPwDiff);
  			RT_TRACE(COMP_INIT, "EEPROMCrystalCap = %d\n", priv->EEPROMCrystalCap);
  
  		//
  		// Get per-channel Tx Power Level
  		//
  		for(i=0; i<14; i+=2)
  		{
  			if(!priv->AutoloadFailFlag)
  			{
  				usValue = eprom_read(priv, (u16) ((EEPROM_TxPwIndex_CCK+i)>>1) );
  			}
  			else
  			{
  				usValue = EEPROM_Default_TxPower;
  			}
  			*((u16*)(&priv->EEPROMTxPowerLevelCCK[i])) = usValue;
  			RT_TRACE(COMP_INIT,"CCK Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK[i]);
  			RT_TRACE(COMP_INIT, "CCK Tx Power Level, Index %d = 0x%02x\n", i+1, priv->EEPROMTxPowerLevelCCK[i+1]);
  		}
  		for(i=0; i<14; i+=2)
  		{
  			if(!priv->AutoloadFailFlag)
  			{
  				usValue = eprom_read(priv, (u16) ((EEPROM_TxPwIndex_OFDM_24G+i)>>1) );
  			}
  			else
  			{
  				usValue = EEPROM_Default_TxPower;
  			}
  			*((u16*)(&priv->EEPROMTxPowerLevelOFDM24G[i])) = usValue;
  			RT_TRACE(COMP_INIT, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelOFDM24G[i]);
  			RT_TRACE(COMP_INIT, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i+1, priv->EEPROMTxPowerLevelOFDM24G[i+1]);
  		}
  		}
  
  		//
  		// Update HAL variables.
  		//
  		if(priv->epromtype == EPROM_93c46)
  		{
  			for(i=0; i<14; i++)
  			{
  				priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK[i];
  				priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[i];
  			}
  			priv->LegacyHTTxPowerDiff = priv->EEPROMLegacyHTTxPowerDiff;
  		// Antenna B gain offset to antenna A, bit0~3
  			priv->AntennaTxPwDiff[0] = (priv->EEPROMAntPwDiff & 0xf);
  		// Antenna C gain offset to antenna A, bit4~7
  			priv->AntennaTxPwDiff[1] = ((priv->EEPROMAntPwDiff & 0xf0)>>4);
  		// Antenna D gain offset to antenna A, bit8~11
  			priv->AntennaTxPwDiff[2] = ((priv->EEPROMAntPwDiff & 0xf00)>>8);
  		// CrystalCap, bit12~15
  			priv->CrystalCap = priv->EEPROMCrystalCap;
  		// ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
  			priv->ThermalMeter[0] = (priv->EEPROMThermalMeter & 0xf);
  			priv->ThermalMeter[1] = ((priv->EEPROMThermalMeter & 0xf0)>>4);
  		}
  		else if(priv->epromtype == EPROM_93c56)
  		{
  			for(i=0; i<3; i++)	// channel 1~3 use the same Tx Power Level.
  			{
  				priv->TxPowerLevelCCK_A[i]  = priv->EEPROMRfACCKChnl1TxPwLevel[0];
  				priv->TxPowerLevelOFDM24G_A[i] = priv->EEPROMRfAOfdmChnlTxPwLevel[0];
  				priv->TxPowerLevelCCK_C[i] =  priv->EEPROMRfCCCKChnl1TxPwLevel[0];
  				priv->TxPowerLevelOFDM24G_C[i] = priv->EEPROMRfCOfdmChnlTxPwLevel[0];
  			}
  			for(i=3; i<9; i++)	// channel 4~9 use the same Tx Power Level
  			{
  				priv->TxPowerLevelCCK_A[i]  = priv->EEPROMRfACCKChnl1TxPwLevel[1];
  				priv->TxPowerLevelOFDM24G_A[i] = priv->EEPROMRfAOfdmChnlTxPwLevel[1];
  				priv->TxPowerLevelCCK_C[i] =  priv->EEPROMRfCCCKChnl1TxPwLevel[1];
  				priv->TxPowerLevelOFDM24G_C[i] = priv->EEPROMRfCOfdmChnlTxPwLevel[1];
  			}
  			for(i=9; i<14; i++)	// channel 10~14 use the same Tx Power Level
  			{
  				priv->TxPowerLevelCCK_A[i]  = priv->EEPROMRfACCKChnl1TxPwLevel[2];
  				priv->TxPowerLevelOFDM24G_A[i] = priv->EEPROMRfAOfdmChnlTxPwLevel[2];
  				priv->TxPowerLevelCCK_C[i] =  priv->EEPROMRfCCCKChnl1TxPwLevel[2];
  				priv->TxPowerLevelOFDM24G_C[i] = priv->EEPROMRfCOfdmChnlTxPwLevel[2];
  			}
  			for(i=0; i<14; i++)
  				RT_TRACE(COMP_INIT, "priv->TxPowerLevelCCK_A[%d] = 0x%x\n", i, priv->TxPowerLevelCCK_A[i]);
  			for(i=0; i<14; i++)
  				RT_TRACE(COMP_INIT,"priv->TxPowerLevelOFDM24G_A[%d] = 0x%x\n", i, priv->TxPowerLevelOFDM24G_A[i]);
  			for(i=0; i<14; i++)
  				RT_TRACE(COMP_INIT, "priv->TxPowerLevelCCK_C[%d] = 0x%x\n", i, priv->TxPowerLevelCCK_C[i]);
  			for(i=0; i<14; i++)
  				RT_TRACE(COMP_INIT, "priv->TxPowerLevelOFDM24G_C[%d] = 0x%x\n", i, priv->TxPowerLevelOFDM24G_C[i]);
  			priv->LegacyHTTxPowerDiff = priv->EEPROMLegacyHTTxPowerDiff;
  			priv->AntennaTxPwDiff[0] = 0;
  			priv->AntennaTxPwDiff[1] = 0;
  			priv->AntennaTxPwDiff[2] = 0;
  			priv->CrystalCap = priv->EEPROMCrystalCap;
  			// ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2
  			priv->ThermalMeter[0] = (priv->EEPROMThermalMeter & 0xf);
  			priv->ThermalMeter[1] = ((priv->EEPROMThermalMeter & 0xf0)>>4);
  		}
  	}
  
  	if(priv->rf_type == RF_1T2R)
  	{
  		RT_TRACE(COMP_INIT, "1T2R config\n");
  	}
  	else if (priv->rf_type == RF_2T4R)
  	{
  		RT_TRACE(COMP_INIT, "2T4R config\n");
  	}
  
  	// 2008/01/16 MH We can only know RF type in the function. So we have to init
  	// DIG RATR table again.
  	init_rate_adaptive(priv);
  
  	//1 Make a copy for following variables and we can change them if we want
  
  	if(priv->RegChannelPlan == 0xf)
  	{
  		priv->ChannelPlan = priv->eeprom_ChannelPlan;
  	}
  	else
  	{
  		priv->ChannelPlan = priv->RegChannelPlan;
  	}
  
  	//
  	//  Used PID and DID to Set CustomerID
  	//
  	if( priv->eeprom_vid == 0x1186 &&  priv->eeprom_did == 0x3304 )
  	{
  		priv->CustomerID =  RT_CID_DLINK;
  	}
  
  	switch(priv->eeprom_CustomerID)
  	{
  		case EEPROM_CID_DEFAULT:
  			priv->CustomerID = RT_CID_DEFAULT;
  			break;
  		case EEPROM_CID_CAMEO:
  			priv->CustomerID = RT_CID_819x_CAMEO;
  			break;
  		case  EEPROM_CID_RUNTOP:
  			priv->CustomerID = RT_CID_819x_RUNTOP;
  			break;
  		case EEPROM_CID_NetCore:
  			priv->CustomerID = RT_CID_819x_Netcore;
  			break;
  		case EEPROM_CID_TOSHIBA:        // Merge by Jacken, 2008/01/31
  			priv->CustomerID = RT_CID_TOSHIBA;
  			if(priv->eeprom_ChannelPlan&0x80)
  				priv->ChannelPlan = priv->eeprom_ChannelPlan&0x7f;
  			else
  				priv->ChannelPlan = 0x0;
  			RT_TRACE(COMP_INIT, "Toshiba ChannelPlan = 0x%x\n",
  				priv->ChannelPlan);
  			break;
  		case EEPROM_CID_Nettronix:
  			priv->CustomerID = RT_CID_Nettronix;
  			break;
  		case EEPROM_CID_Pronet:
  			priv->CustomerID = RT_CID_PRONET;
  			break;
  		case EEPROM_CID_DLINK:
  			priv->CustomerID = RT_CID_DLINK;
  			break;
  
  		case EEPROM_CID_WHQL:
  			break;
  		default:
  			// value from RegCustomerID
  			break;
  	}
  
  	//Avoid the channel plan array overflow, by Bruce, 2007-08-27.
  	if(priv->ChannelPlan > CHANNEL_PLAN_LEN - 1)
  		priv->ChannelPlan = 0; //FCC
  
  	if( priv->eeprom_vid == 0x1186 &&  priv->eeprom_did == 0x3304)
  		priv->ieee80211->bSupportRemoteWakeUp = true;
  	else
  		priv->ieee80211->bSupportRemoteWakeUp = false;
  
  
  	RT_TRACE(COMP_INIT, "RegChannelPlan(%d)\n", priv->RegChannelPlan);
  	RT_TRACE(COMP_INIT, "ChannelPlan = %d\n", priv->ChannelPlan);
  	RT_TRACE(COMP_TRACE, "<==== ReadAdapterInfo\n");
  }
  
  
  static short rtl8192_get_channel_map(struct r8192_priv *priv)
  {
  #ifdef ENABLE_DOT11D
  	if(priv->ChannelPlan> COUNTRY_CODE_GLOBAL_DOMAIN){
  		printk("rtl8180_init:Error channel plan! Set to default.\n");
  		priv->ChannelPlan= 0;
  	}
  	RT_TRACE(COMP_INIT, "Channel plan is %d\n",priv->ChannelPlan);
  
  	rtl819x_set_channel_map(priv->ChannelPlan, priv);
  #else
  	int ch,i;
  	//Set Default Channel Plan
  	if(!channels){
  		DMESG("No channels, aborting");
  		return -1;
  	}
  	ch=channels;
  	priv->ChannelPlan= 0;//hikaru
  	 // set channels 1..14 allowed in given locale
  	for (i=1; i<=14; i++) {
  		(priv->ieee80211->channel_map)[i] = (u8)(ch & 0x01);
  		ch >>= 1;
  	}
  #endif
  	return 0;
  }
  
  static short rtl8192_init(struct r8192_priv *priv)
  {
  	struct net_device *dev = priv->ieee80211->dev;
  
  	memset(&(priv->stats),0,sizeof(struct Stats));
  	rtl8192_init_priv_variable(priv);
  	rtl8192_init_priv_lock(priv);
  	rtl8192_init_priv_task(priv);
  	rtl8192_get_eeprom_size(priv);
  	rtl8192_read_eeprom_info(priv);
  	rtl8192_get_channel_map(priv);
  	init_hal_dm(priv);
  	init_timer(&priv->watch_dog_timer);
  	priv->watch_dog_timer.data = (unsigned long)priv;
  	priv->watch_dog_timer.function = watch_dog_timer_callback;
          if (request_irq(dev->irq, rtl8192_interrupt, IRQF_SHARED, dev->name, priv)) {
  		printk("Error allocating IRQ %d",dev->irq);
  		return -1;
  	}else{
  		priv->irq=dev->irq;
  		printk("IRQ %d",dev->irq);
  	}
  	if (rtl8192_pci_initdescring(priv) != 0){
  		printk("Endopoints initialization failed");
  		return -1;
  	}
  
  	return 0;
  }
  
  /*
   * Actually only set RRSR, RATR and BW_OPMODE registers
   *  not to do all the hw config as its name says
   * This part need to modified according to the rate set we filtered
   */
  static void rtl8192_hwconfig(struct r8192_priv *priv)
  {
  	u32 regRATR = 0, regRRSR = 0;
  	u8 regBwOpMode = 0, regTmp = 0;
  
  // Set RRSR, RATR, and BW_OPMODE registers
  	//
  	switch (priv->ieee80211->mode)
  	{
  	case WIRELESS_MODE_B:
  		regBwOpMode = BW_OPMODE_20MHZ;
  		regRATR = RATE_ALL_CCK;
  		regRRSR = RATE_ALL_CCK;
  		break;
  	case WIRELESS_MODE_A:
  		regBwOpMode = BW_OPMODE_5G |BW_OPMODE_20MHZ;
  		regRATR = RATE_ALL_OFDM_AG;
  		regRRSR = RATE_ALL_OFDM_AG;
  		break;
  	case WIRELESS_MODE_G:
  		regBwOpMode = BW_OPMODE_20MHZ;
  		regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
  		regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
  		break;
  	case WIRELESS_MODE_AUTO:
  	case WIRELESS_MODE_N_24G:
  		// It support CCK rate by default.
  		// CCK rate will be filtered out only when associated AP does not support it.
  		regBwOpMode = BW_OPMODE_20MHZ;
  			regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
  			regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG;
  		break;
  	case WIRELESS_MODE_N_5G:
  		regBwOpMode = BW_OPMODE_5G;
  		regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS;
  		regRRSR = RATE_ALL_OFDM_AG;
  		break;
  	}
  
  	write_nic_byte(priv, BW_OPMODE, regBwOpMode);
  	{
  		u32 ratr_value = 0;
  		ratr_value = regRATR;
  		if (priv->rf_type == RF_1T2R)
  		{
  			ratr_value &= ~(RATE_ALL_OFDM_2SS);
  		}
  		write_nic_dword(priv, RATR0, ratr_value);
  		write_nic_byte(priv, UFWP, 1);
  	}
  	regTmp = read_nic_byte(priv, 0x313);
  	regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff);
  	write_nic_dword(priv, RRSR, regRRSR);
  
  	//
  	// Set Retry Limit here
  	//
  	write_nic_word(priv, RETRY_LIMIT,
  			priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT |
  			priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT);
  	// Set Contention Window here
  
  	// Set Tx AGC
  
  	// Set Tx Antenna including Feedback control
  
  	// Set Auto Rate fallback control
  
  
  }
  
  
  static RT_STATUS rtl8192_adapter_start(struct r8192_priv *priv)
  {
  	struct net_device *dev = priv->ieee80211->dev;
  	u32 ulRegRead;
  	RT_STATUS rtStatus = RT_STATUS_SUCCESS;
  	u8 tmpvalue;
  	u8 ICVersion,SwitchingRegulatorOutput;
  	bool bfirmwareok = true;
  	u32	tmpRegA, tmpRegC, TempCCk;
  	int	i =0;
  
  	RT_TRACE(COMP_INIT, "====>%s()\n", __FUNCTION__);
  	priv->being_init_adapter = true;
          rtl8192_pci_resetdescring(priv);
  	// 2007/11/02 MH Before initalizing RF. We can not use FW to do RF-R/W.
  	priv->Rf_Mode = RF_OP_By_SW_3wire;
  
          //dPLL on
          if(priv->ResetProgress == RESET_TYPE_NORESET)
          {
              write_nic_byte(priv, ANAPAR, 0x37);
              // Accordign to designer's explain, LBUS active will never > 10ms. We delay 10ms
              // Joseph increae the time to prevent firmware download fail
              mdelay(500);
          }
  
  	//PlatformSleepUs(10000);
  	// For any kind of InitializeAdapter process, we shall use system now!!
  	priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
  
  	//
  	//3 //Config CPUReset Register
  	//3//
  	//3 Firmware Reset Or Not
  	ulRegRead = read_nic_dword(priv, CPU_GEN);
  	if(priv->pFirmware->firmware_status == FW_STATUS_0_INIT)
  	{	//called from MPInitialized. do nothing
  		ulRegRead |= CPU_GEN_SYSTEM_RESET;
  	}else if(priv->pFirmware->firmware_status == FW_STATUS_5_READY)
  		ulRegRead |= CPU_GEN_FIRMWARE_RESET;	// Called from MPReset
  	else
  		RT_TRACE(COMP_ERR, "ERROR in %s(): undefined firmware state(%d)\n", __FUNCTION__,   priv->pFirmware->firmware_status);
  
  	write_nic_dword(priv, CPU_GEN, ulRegRead);
  
  	//3//
  	//3 //Fix the issue of E-cut high temperature issue
  	//3//
  	// TODO: E cut only
  	ICVersion = read_nic_byte(priv, IC_VERRSION);
  	if(ICVersion >= 0x4) //E-cut only
  	{
  		// HW SD suggest that we should not wirte this register too often, so driver
  		// should readback this register. This register will be modified only when
  		// power on reset
  		SwitchingRegulatorOutput = read_nic_byte(priv, SWREGULATOR);
  		if(SwitchingRegulatorOutput  != 0xb8)
  		{
  			write_nic_byte(priv, SWREGULATOR, 0xa8);
  			mdelay(1);
  			write_nic_byte(priv, SWREGULATOR, 0xb8);
  		}
  	}
  
  	//3//
  	//3// Initialize BB before MAC
  	//3//
  	RT_TRACE(COMP_INIT, "BB Config Start!\n");
  	rtStatus = rtl8192_BBConfig(priv);
  	if(rtStatus != RT_STATUS_SUCCESS)
  	{
  		RT_TRACE(COMP_ERR, "BB Config failed\n");
  		return rtStatus;
  	}
  	RT_TRACE(COMP_INIT,"BB Config Finished!\n");
  
  	//3//Set Loopback mode or Normal mode
  	//3//
  	//2006.12.13 by emily. Note!We should not merge these two CPU_GEN register writings
  	//	because setting of System_Reset bit reset MAC to default transmission mode.
  		//Loopback mode or not
  	priv->LoopbackMode = RTL819X_NO_LOOPBACK;
  	if(priv->ResetProgress == RESET_TYPE_NORESET)
  	{
  	ulRegRead = read_nic_dword(priv, CPU_GEN);
  	if(priv->LoopbackMode == RTL819X_NO_LOOPBACK)
  	{
  		ulRegRead = ((ulRegRead & CPU_GEN_NO_LOOPBACK_MSK) | CPU_GEN_NO_LOOPBACK_SET);
  	}
  	else if (priv->LoopbackMode == RTL819X_MAC_LOOPBACK )
  	{
  		ulRegRead |= CPU_CCK_LOOPBACK;
  	}
  	else
  	{
  		RT_TRACE(COMP_ERR,"Serious error: wrong loopback mode setting\n");
  	}
  
  	//2008.06.03, for WOL
  	//ulRegRead &= (~(CPU_GEN_GPIO_UART));
  	write_nic_dword(priv, CPU_GEN, ulRegRead);
  
  	// 2006.11.29. After reset cpu, we sholud wait for a second, otherwise, it may fail to write registers. Emily
  	udelay(500);
  	}
  	//3Set Hardware(Do nothing now)
  	rtl8192_hwconfig(priv);
  	//2=======================================================
  	// Common Setting for all of the FPGA platform. (part 1)
  	//2=======================================================
  	// If there is changes, please make sure it applies to all of the FPGA version
  	//3 Turn on Tx/Rx
  	write_nic_byte(priv, CMDR, CR_RE|CR_TE);
  
  	//2Set Tx dma burst
  	write_nic_byte(priv, PCIF, ((MXDMA2_NoLimit<<MXDMA2_RX_SHIFT) |
  				   (MXDMA2_NoLimit<<MXDMA2_TX_SHIFT) ));
  
  	//set IDR0 here
  	write_nic_dword(priv, MAC0, ((u32*)dev->dev_addr)[0]);
  	write_nic_word(priv, MAC4, ((u16*)(dev->dev_addr + 4))[0]);
  	//set RCR
  	write_nic_dword(priv, RCR, priv->ReceiveConfig);
  
  	//3 Initialize Number of Reserved Pages in Firmware Queue
  		write_nic_dword(priv, RQPN1,  NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT |
  					NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT |
  					NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT |
  					NUM_OF_PAGE_IN_FW_QUEUE_VO <<RSVD_FW_QUEUE_PAGE_VO_SHIFT);
  		write_nic_dword(priv, RQPN2, NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT);
  		write_nic_dword(priv, RQPN3, APPLIED_RESERVED_QUEUE_IN_FW|
  					NUM_OF_PAGE_IN_FW_QUEUE_BCN<<RSVD_FW_QUEUE_PAGE_BCN_SHIFT|
  					NUM_OF_PAGE_IN_FW_QUEUE_PUB<<RSVD_FW_QUEUE_PAGE_PUB_SHIFT);
  
  	rtl8192_tx_enable(priv);
  	rtl8192_rx_enable(priv);
  	//3Set Response Rate Setting Register
  	// CCK rate is supported by default.
  	// CCK rate will be filtered out only when associated AP does not support it.
  	ulRegRead = (0xFFF00000 & read_nic_dword(priv, RRSR))  | RATE_ALL_OFDM_AG | RATE_ALL_CCK;
  	write_nic_dword(priv, RRSR, ulRegRead);
  	write_nic_dword(priv, RATR0+4*7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK));
  
  	//2Set AckTimeout
  	// TODO: (it value is only for FPGA version). need to be changed!!2006.12.18, by Emily
  	write_nic_byte(priv, ACK_TIMEOUT, 0x30);
  
  	if(priv->ResetProgress == RESET_TYPE_NORESET)
  	rtl8192_SetWirelessMode(priv->ieee80211, priv->ieee80211->mode);
  	//-----------------------------------------------------------------------------
  	// Set up security related. 070106, by rcnjko:
  	// 1. Clear all H/W keys.
  	// 2. Enable H/W encryption/decryption.
  	//-----------------------------------------------------------------------------
  	CamResetAllEntry(priv);
  	{
  		u8 SECR_value = 0x0;
  		SECR_value |= SCR_TxEncEnable;
  		SECR_value |= SCR_RxDecEnable;
  		SECR_value |= SCR_NoSKMC;
  		write_nic_byte(priv, SECR, SECR_value);
  	}
  	//3Beacon related
  	write_nic_word(priv, ATIMWND, 2);
  	write_nic_word(priv, BCN_INTERVAL, 100);
  	for (i=0; i<QOS_QUEUE_NUM; i++)
  		write_nic_dword(priv, WDCAPARA_ADD[i], 0x005e4332);
  	//
  	// Switching regulator controller: This is set temporarily.
  	// It's not sure if this can be removed in the future.
  	// PJ advised to leave it by default.
  	//
  	write_nic_byte(priv, 0xbe, 0xc0);
  
  	//2=======================================================
  	// Set PHY related configuration defined in MAC register bank
  	//2=======================================================
  	rtl8192_phy_configmac(priv);
  
  	if (priv->card_8192_version > (u8) VERSION_8190_BD) {
  		rtl8192_phy_getTxPower(priv);
  		rtl8192_phy_setTxPower(priv, priv->chan);
  	}
  
  	//if D or C cut
  		tmpvalue = read_nic_byte(priv, IC_VERRSION);
  		priv->IC_Cut = tmpvalue;
  		RT_TRACE(COMP_INIT, "priv->IC_Cut = 0x%x\n", priv->IC_Cut);
  		if(priv->IC_Cut >= IC_VersionCut_D)
  		{
  			//pHalData->bDcut = TRUE;
  			if(priv->IC_Cut == IC_VersionCut_D)
  				RT_TRACE(COMP_INIT, "D-cut\n");
  			if(priv->IC_Cut == IC_VersionCut_E)
  			{
  				RT_TRACE(COMP_INIT, "E-cut\n");
  				// HW SD suggest that we should not wirte this register too often, so driver
  				// should readback this register. This register will be modified only when
  				// power on reset
  			}
  		}
  		else
  		{
  			//pHalData->bDcut = FALSE;
  			RT_TRACE(COMP_INIT, "Before C-cut\n");
  		}
  
  	//Firmware download
  	RT_TRACE(COMP_INIT, "Load Firmware!\n");
  	bfirmwareok = init_firmware(priv);
  	if(bfirmwareok != true) {
  		rtStatus = RT_STATUS_FAILURE;
  		return rtStatus;
  	}
  	RT_TRACE(COMP_INIT, "Load Firmware finished!\n");
  
  	//RF config
  	if(priv->ResetProgress == RESET_TYPE_NORESET)
  	{
  	RT_TRACE(COMP_INIT, "RF Config Started!\n");
  	rtStatus = rtl8192_phy_RFConfig(priv);
  	if(rtStatus != RT_STATUS_SUCCESS)
  	{
  		RT_TRACE(COMP_ERR, "RF Config failed\n");
  			return rtStatus;
  	}
  	RT_TRACE(COMP_INIT, "RF Config Finished!\n");
  	}
  	rtl8192_phy_updateInitGain(priv);
  
  	/*---- Set CCK and OFDM Block "ON"----*/
  	rtl8192_setBBreg(priv, rFPGA0_RFMOD, bCCKEn, 0x1);
  	rtl8192_setBBreg(priv, rFPGA0_RFMOD, bOFDMEn, 0x1);
  
  	//Enable Led
  	write_nic_byte(priv, 0x87, 0x0);
  
  	//2=======================================================
  	// RF Power Save
  	//2=======================================================
  #ifdef ENABLE_IPS
  
  {
  	if(priv->RfOffReason > RF_CHANGE_BY_PS)
  	{ // H/W or S/W RF OFF before sleep.
  		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER), "%s(): Turn off RF for RfOffReason(%d)\n", __FUNCTION__,priv->RfOffReason);
  		MgntActSet_RF_State(priv, eRfOff, priv->RfOffReason);
  	}
  	else if(priv->RfOffReason >= RF_CHANGE_BY_IPS)
  	{ // H/W or S/W RF OFF before sleep.
  		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER), "%s(): Turn off RF for RfOffReason(%d)\n",  __FUNCTION__, priv->RfOffReason);
  		MgntActSet_RF_State(priv, eRfOff, priv->RfOffReason);
  	}
  	else
  	{
  		RT_TRACE((COMP_INIT|COMP_RF|COMP_POWER), "%s(): RF-ON \n",__FUNCTION__);
  		priv->eRFPowerState = eRfOn;
  		priv->RfOffReason = 0;
  	}
  }
  #endif
  	// We can force firmware to do RF-R/W
  	if(priv->ieee80211->FwRWRF)
  		priv->Rf_Mode = RF_OP_By_FW;
  	else
  		priv->Rf_Mode = RF_OP_By_SW_3wire;
  
  	if(priv->ResetProgress == RESET_TYPE_NORESET)
  	{
  		dm_initialize_txpower_tracking(priv);
  
  		if(priv->IC_Cut >= IC_VersionCut_D)
  		{
  			tmpRegA = rtl8192_QueryBBReg(priv, rOFDM0_XATxIQImbalance, bMaskDWord);
  			tmpRegC = rtl8192_QueryBBReg(priv, rOFDM0_XCTxIQImbalance, bMaskDWord);
  			for(i = 0; i<TxBBGainTableLength; i++)
  			{
  				if(tmpRegA == priv->txbbgain_table[i].txbbgain_value)
  				{
  					priv->rfa_txpowertrackingindex= (u8)i;
  					priv->rfa_txpowertrackingindex_real= (u8)i;
  					priv->rfa_txpowertracking_default = priv->rfa_txpowertrackingindex;
  					break;
  				}
  			}
  
  		TempCCk = rtl8192_QueryBBReg(priv, rCCK0_TxFilter1, bMaskByte2);
  
  		for(i=0 ; i<CCKTxBBGainTableLength ; i++)
  		{
  			if(TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0])
  			{
  				priv->CCKPresentAttentuation_20Mdefault =(u8) i;
  				break;
  			}
  		}
  		priv->CCKPresentAttentuation_40Mdefault = 0;
  		priv->CCKPresentAttentuation_difference = 0;
  		priv->CCKPresentAttentuation = priv->CCKPresentAttentuation_20Mdefault;
  			RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex_initial = %d\n", priv->rfa_txpowertrackingindex);
  			RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex_real__initial = %d\n", priv->rfa_txpowertrackingindex_real);
  			RT_TRACE(COMP_POWER_TRACKING, "priv->CCKPresentAttentuation_difference_initial = %d\n", priv->CCKPresentAttentuation_difference);
  			RT_TRACE(COMP_POWER_TRACKING, "priv->CCKPresentAttentuation_initial = %d\n", priv->CCKPresentAttentuation);
  			priv->btxpower_tracking = FALSE;//TEMPLY DISABLE
  		}
  	}
  
  	rtl8192_irq_enable(priv);
  	priv->being_init_adapter = false;
  	return rtStatus;
  
  }
  
  static void rtl8192_prepare_beacon(unsigned long arg)
  {
  	struct r8192_priv *priv = (struct r8192_priv*) arg;
  	struct sk_buff *skb;
  	cb_desc *tcb_desc;
  
  	skb = ieee80211_get_beacon(priv->ieee80211);
  	tcb_desc = (cb_desc *)(skb->cb + 8);
  	/* prepare misc info for the beacon xmit */
  	tcb_desc->queue_index = BEACON_QUEUE;
  	/* IBSS does not support HT yet, use 1M defaultly */
  	tcb_desc->data_rate = 2;
  	tcb_desc->RATRIndex = 7;
  	tcb_desc->bTxDisableRateFallBack = 1;
  	tcb_desc->bTxUseDriverAssingedRate = 1;
  
  	skb_push(skb, priv->ieee80211->tx_headroom);
  	if(skb){
  		rtl8192_tx(priv, skb);
  	}
  }
  
  
  /*
   * configure registers for beacon tx and enables it via
   * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might
   * be used to stop beacon transmission
   */
  static void rtl8192_start_beacon(struct ieee80211_device *ieee80211)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	struct ieee80211_network *net = &priv->ieee80211->current_network;
  	u16 BcnTimeCfg = 0;
          u16 BcnCW = 6;
          u16 BcnIFS = 0xf;
  
  	DMESG("Enabling beacon TX");
  	rtl8192_irq_disable(priv);
  	//rtl8192_beacon_tx_enable(dev);
  
  	/* ATIM window */
  	write_nic_word(priv, ATIMWND, 2);
  
  	/* Beacon interval (in unit of TU) */
  	write_nic_word(priv, BCN_INTERVAL, net->beacon_interval);
  
  	/*
  	 * DrvErlyInt (in unit of TU).
  	 * (Time to send interrupt to notify driver to c
  	 * hange beacon content)
  	 * */
  	write_nic_word(priv, BCN_DRV_EARLY_INT, 10);
  
  	/*
  	 * BcnDMATIM(in unit of us).
  	 * Indicates the time before TBTT to perform beacon queue DMA
  	 * */
  	write_nic_word(priv, BCN_DMATIME, 256);
  
  	/*
  	 * Force beacon frame transmission even after receiving
  	 * beacon frame from other ad hoc STA
  	 * */
  	write_nic_byte(priv, BCN_ERR_THRESH, 100);
  
  	/* Set CW and IFS */
  	BcnTimeCfg |= BcnCW<<BCN_TCFG_CW_SHIFT;
  	BcnTimeCfg |= BcnIFS<<BCN_TCFG_IFS;
  	write_nic_word(priv, BCN_TCFG, BcnTimeCfg);
  
  
  	/* enable the interrupt for ad-hoc process */
  	rtl8192_irq_enable(priv);
  }
  
  static bool HalRxCheckStuck8190Pci(struct r8192_priv *priv)
  {
  	u16 RegRxCounter = read_nic_word(priv, 0x130);
  	bool				bStuck = FALSE;
  
  	RT_TRACE(COMP_RESET,"%s(): RegRxCounter is %d,RxCounter is %d\n",__FUNCTION__,RegRxCounter,priv->RxCounter);
  	// If rssi is small, we should check rx for long time because of bad rx.
  	// or maybe it will continuous silent reset every 2 seconds.
  	priv->rx_chk_cnt++;
  	if(priv->undecorated_smoothed_pwdb >= (RateAdaptiveTH_High+5))
  	{
  		priv->rx_chk_cnt = 0;	/* high rssi, check rx stuck right now. */
  	}
  	else if(priv->undecorated_smoothed_pwdb < (RateAdaptiveTH_High+5) &&
  		((priv->CurrentChannelBW!=HT_CHANNEL_WIDTH_20&&priv->undecorated_smoothed_pwdb>=RateAdaptiveTH_Low_40M) ||
  		(priv->CurrentChannelBW==HT_CHANNEL_WIDTH_20&&priv->undecorated_smoothed_pwdb>=RateAdaptiveTH_Low_20M)) )
  
  	{
  		if(priv->rx_chk_cnt < 2)
  		{
  			return bStuck;
  		}
  		else
  		{
  			priv->rx_chk_cnt = 0;
  		}
  	}
  	else if(((priv->CurrentChannelBW!=HT_CHANNEL_WIDTH_20&&priv->undecorated_smoothed_pwdb<RateAdaptiveTH_Low_40M) ||
  		(priv->CurrentChannelBW==HT_CHANNEL_WIDTH_20&&priv->undecorated_smoothed_pwdb<RateAdaptiveTH_Low_20M)) &&
  		priv->undecorated_smoothed_pwdb >= VeryLowRSSI)
  	{
  		if(priv->rx_chk_cnt < 4)
  		{
  			return bStuck;
  		}
  		else
  		{
  			priv->rx_chk_cnt = 0;
  		}
  	}
  	else
  	{
  		if(priv->rx_chk_cnt < 8)
  		{
  			return bStuck;
  		}
  		else
  		{
  			priv->rx_chk_cnt = 0;
  		}
  	}
  	if(priv->RxCounter==RegRxCounter)
  		bStuck = TRUE;
  
  	priv->RxCounter = RegRxCounter;
  
  	return bStuck;
  }
  
  static RESET_TYPE RxCheckStuck(struct r8192_priv *priv)
  {
  
  	if(HalRxCheckStuck8190Pci(priv))
  	{
  		RT_TRACE(COMP_RESET, "RxStuck Condition\n");
  		return RESET_TYPE_SILENT;
  	}
  
  	return RESET_TYPE_NORESET;
  }
  
  static RESET_TYPE rtl819x_check_reset(struct r8192_priv *priv)
  {
  	RESET_TYPE RxResetType = RESET_TYPE_NORESET;
  	RT_RF_POWER_STATE rfState;
  
  	rfState = priv->eRFPowerState;
  
  	if (rfState != eRfOff && (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) {
  		/*
  		 * If driver is in the status of firmware download failure,
  		 * driver skips RF initialization and RF is in turned off state.
  		 * Driver should check whether Rx stuck and do silent reset. And
  		 * if driver is in firmware download failure status, driver
  		 * should initialize RF in the following silent reset procedure
  		 *
  		 * Driver should not check RX stuck in IBSS mode because it is
  		 * required to set Check BSSID in order to send beacon, however,
  		 * if check BSSID is set, STA cannot hear any packet a all.
  		 */
  		RxResetType = RxCheckStuck(priv);
  	}
  
  	RT_TRACE(COMP_RESET, "%s():  RxResetType is %d\n", __FUNCTION__, RxResetType);
  
  	return RxResetType;
  }
  
  #ifdef ENABLE_IPS
  static void InactivePsWorkItemCallback(struct r8192_priv *priv)
  {
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  
  	RT_TRACE(COMP_POWER, "InactivePsWorkItemCallback() --------->\n");
  	//
  	// This flag "bSwRfProcessing", indicates the status of IPS procedure, should be set if the IPS workitem
  	// is really scheduled.
  	// The old code, sets this flag before scheduling the IPS workitem and however, at the same time the
  	// previous IPS workitem did not end yet, fails to schedule the current workitem. Thus, bSwRfProcessing
  	// blocks the IPS procedure of switching RF.
  	// By Bruce, 2007-12-25.
  	//
  	pPSC->bSwRfProcessing = TRUE;
  
  	RT_TRACE(COMP_RF, "InactivePsWorkItemCallback(): Set RF to %s.\n",
  			pPSC->eInactivePowerState == eRfOff?"OFF":"ON");
  
  
  	MgntActSet_RF_State(priv, pPSC->eInactivePowerState, RF_CHANGE_BY_IPS);
  
  	//
  	// To solve CAM values miss in RF OFF, rewrite CAM values after RF ON. By Bruce, 2007-09-20.
  	//
  	pPSC->bSwRfProcessing = FALSE;
  	RT_TRACE(COMP_POWER, "InactivePsWorkItemCallback() <---------\n");
  }
  
  #ifdef ENABLE_LPS
  /* Change current and default preamble mode. */
  bool MgntActSet_802_11_PowerSaveMode(struct r8192_priv *priv, u8 rtPsMode)
  {
  
  	// Currently, we do not change power save mode on IBSS mode.
  	if(priv->ieee80211->iw_mode == IW_MODE_ADHOC)
  	{
  		return false;
  	}
  
  	//
  	// <RJ_NOTE> If we make HW to fill up the PwrMgt bit for us,
  	// some AP will not response to our mgnt frames with PwrMgt bit set,
  	// e.g. cannot associate the AP.
  	// So I commented out it. 2005.02.16, by rcnjko.
  	//
  //	// Change device's power save mode.
  //	Adapter->HalFunc.SetPSModeHandler( Adapter, rtPsMode );
  
  	// Update power save mode configured.
  	//RT_TRACE(COMP_LPS,"%s(): set ieee->ps = %x\n",__FUNCTION__,rtPsMode);
  	if(!priv->ps_force) {
  		priv->ieee80211->ps = rtPsMode;
  	}
  
  	// Awake immediately
  	if(priv->ieee80211->sta_sleep != 0 && rtPsMode == IEEE80211_PS_DISABLED)
  	{
  		// Notify the AP we awke.
  		rtl8192_hw_wakeup(priv->ieee80211);
  		priv->ieee80211->sta_sleep = 0;
  
                  spin_lock(&priv->ieee80211->mgmt_tx_lock);
  		printk("LPS leave: notify AP we are awaked ++++++++++ SendNullFunctionData\n");
  		ieee80211_sta_ps_send_null_frame(priv->ieee80211, 0);
                  spin_unlock(&priv->ieee80211->mgmt_tx_lock);
  	}
  
  	return true;
  }
  
  /* Enter the leisure power save mode. */
  void LeisurePSEnter(struct ieee80211_device *ieee80211)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  
  	if(!((priv->ieee80211->iw_mode == IW_MODE_INFRA) &&
  		(priv->ieee80211->state == IEEE80211_LINKED)) ||
  		(priv->ieee80211->iw_mode == IW_MODE_ADHOC) ||
  		(priv->ieee80211->iw_mode == IW_MODE_MASTER))
  		return;
  
  	if (pPSC->bLeisurePs)
  	{
  		// Idle for a while if we connect to AP a while ago.
  		if(pPSC->LpsIdleCount >= RT_CHECK_FOR_HANG_PERIOD) //  4 Sec
  		{
  
  			if(priv->ieee80211->ps == IEEE80211_PS_DISABLED)
  			{
  				MgntActSet_802_11_PowerSaveMode(priv, IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST);
  
  			}
  		}
  		else
  			pPSC->LpsIdleCount++;
  	}
  }
  
  
  /* Leave leisure power save mode. */
  void LeisurePSLeave(struct ieee80211_device *ieee80211)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  
  	if (pPSC->bLeisurePs)
  	{
  		if(priv->ieee80211->ps != IEEE80211_PS_DISABLED)
  		{
  			// move to lps_wakecomplete()
  			MgntActSet_802_11_PowerSaveMode(priv, IEEE80211_PS_DISABLED);
  
  		}
  	}
  }
  #endif
  
  
  /* Enter the inactive power save mode. RF will be off */
  void IPSEnter(struct r8192_priv *priv)
  {
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  	RT_RF_POWER_STATE 			rtState;
  
  	if (pPSC->bInactivePs)
  	{
  		rtState = priv->eRFPowerState;
  		//
  		// Added by Bruce, 2007-12-25.
  		// Do not enter IPS in the following conditions:
  		// (1) RF is already OFF or Sleep
  		// (2) bSwRfProcessing (indicates the IPS is still under going)
  		// (3) Connectted (only disconnected can trigger IPS)
  		// (4) IBSS (send Beacon)
  		// (5) AP mode (send Beacon)
  		//
  		if (rtState == eRfOn && !pPSC->bSwRfProcessing
  			&& (priv->ieee80211->state != IEEE80211_LINKED) )
  		{
  			RT_TRACE(COMP_RF,"IPSEnter(): Turn off RF.\n");
  			pPSC->eInactivePowerState = eRfOff;
  //			queue_work(priv->priv_wq,&(pPSC->InactivePsWorkItem));
  			InactivePsWorkItemCallback(priv);
  		}
  	}
  }
  
  //
  //	Description:
  //		Leave the inactive power save mode, RF will be on.
  //	2007.08.17, by shien chang.
  //
  void IPSLeave(struct r8192_priv *priv)
  {
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  	RT_RF_POWER_STATE 	rtState;
  
  	if (pPSC->bInactivePs)
  	{
  		rtState = priv->eRFPowerState;
  		if (rtState != eRfOn && !pPSC->bSwRfProcessing && priv->RfOffReason <= RF_CHANGE_BY_IPS)
  		{
  			RT_TRACE(COMP_POWER, "IPSLeave(): Turn on RF.\n");
  			pPSC->eInactivePowerState = eRfOn;
  			InactivePsWorkItemCallback(priv);
  		}
  	}
  }
  
  void IPSLeave_wq(struct work_struct *work)
  {
  	struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, ips_leave_wq);
  	struct net_device *dev = ieee->dev;
  
  	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
  	down(&priv->ieee80211->ips_sem);
  	IPSLeave(priv);
  	up(&priv->ieee80211->ips_sem);
  }
  
  void ieee80211_ips_leave_wq(struct ieee80211_device *ieee80211)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	RT_RF_POWER_STATE	rtState;
  	rtState = priv->eRFPowerState;
  
  	if (priv->PowerSaveControl.bInactivePs){
  		if(rtState == eRfOff){
  			if(priv->RfOffReason > RF_CHANGE_BY_IPS)
  			{
  				RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",__FUNCTION__);
  				return;
  			}
  			else{
  				printk("=========>%s(): IPSLeave\n",__FUNCTION__);
  				queue_work(priv->ieee80211->wq,&priv->ieee80211->ips_leave_wq);
  			}
  		}
  	}
  }
  //added by amy 090331 end
  void ieee80211_ips_leave(struct ieee80211_device *ieee80211)
  {
  	struct r8192_priv *priv = ieee80211_priv(ieee80211->dev);
  	down(&ieee80211->ips_sem);
  	IPSLeave(priv);
  	up(&ieee80211->ips_sem);
  }
  #endif
  
  static void rtl819x_update_rxcounts(
  	struct r8192_priv *priv,
  	u32* TotalRxBcnNum,
  	u32* TotalRxDataNum
  )
  {
  	u16 			SlotIndex;
  	u8			i;
  
  	*TotalRxBcnNum = 0;
  	*TotalRxDataNum = 0;
  
  	SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++)%(priv->ieee80211->LinkDetectInfo.SlotNum);
  	priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod;
  	priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod;
  	for( i=0; i<priv->ieee80211->LinkDetectInfo.SlotNum; i++ ){
  		*TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i];
  		*TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i];
  	}
  }
  
  
  static void rtl819x_watchdog_wqcallback(struct work_struct *work)
  {
  	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
         struct r8192_priv *priv = container_of(dwork,struct r8192_priv,watch_dog_wq);
  	struct ieee80211_device* ieee = priv->ieee80211;
  	RESET_TYPE	ResetType = RESET_TYPE_NORESET;
  	bool bBusyTraffic = false;
  	bool bEnterPS = false;
  
  	if ((!priv->up) || priv->bHwRadioOff)
  		return;
  
  	if(!priv->up)
  		return;
  	hal_dm_watchdog(priv);
  #ifdef ENABLE_IPS
  	if(ieee->actscanning == false){
  		if((ieee->iw_mode == IW_MODE_INFRA) && (ieee->state == IEEE80211_NOLINK) &&
  		    (priv->eRFPowerState == eRfOn) && !ieee->is_set_key &&
  		    (!ieee->proto_stoppping) && !ieee->wx_set_enc){
  			if (priv->PowerSaveControl.ReturnPoint == IPS_CALLBACK_NONE){
  				IPSEnter(priv);
  			}
  		}
  	}
  #endif
  	{//to get busy traffic condition
  		if(ieee->state == IEEE80211_LINKED)
  		{
  			if(	ieee->LinkDetectInfo.NumRxOkInPeriod> 100 ||
  				ieee->LinkDetectInfo.NumTxOkInPeriod> 100 ) {
  				bBusyTraffic = true;
  			}
  
  #ifdef ENABLE_LPS
  			//added by amy for Leisure PS
  			if(	((ieee->LinkDetectInfo.NumRxUnicastOkInPeriod + ieee->LinkDetectInfo.NumTxOkInPeriod) > 8 ) ||
  				(ieee->LinkDetectInfo.NumRxUnicastOkInPeriod > 2) )
  			{
  				bEnterPS= false;
  			}
  			else
  			{
  				bEnterPS= true;
  			}
  
  			// LeisurePS only work in infra mode.
  			if(bEnterPS)
  			{
  				LeisurePSEnter(priv->ieee80211);
  			}
  			else
  			{
  				LeisurePSLeave(priv->ieee80211);
  			}
  #endif
  
  		}
  		else
  		{
  #ifdef ENABLE_LPS
  			LeisurePSLeave(priv->ieee80211);
  #endif
  		}
  
  	        ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
  	        ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
  		ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
  		ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
  	}
  
  
  	//added by amy for AP roaming
  		if(ieee->state == IEEE80211_LINKED && ieee->iw_mode == IW_MODE_INFRA)
  		{
  			u32	TotalRxBcnNum = 0;
  			u32	TotalRxDataNum = 0;
  
  			rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum);
  			if((TotalRxBcnNum+TotalRxDataNum) == 0)
  			{
  				if (priv->eRFPowerState == eRfOff)
  					RT_TRACE(COMP_ERR,"========>%s()\n",__FUNCTION__);
  				printk("===>%s(): AP is power off,connect another one\n",__FUNCTION__);
  				//		Dot11d_Reset(dev);
  				ieee->state = IEEE80211_ASSOCIATING;
  				notify_wx_assoc_event(priv->ieee80211);
  				RemovePeerTS(priv->ieee80211,priv->ieee80211->current_network.bssid);
  				ieee->is_roaming = true;
  				ieee->is_set_key = false;
  				ieee->link_change(ieee);
  				queue_work(ieee->wq, &ieee->associate_procedure_wq);
  			}
  		}
  	      ieee->LinkDetectInfo.NumRecvBcnInPeriod=0;
                ieee->LinkDetectInfo.NumRecvDataInPeriod=0;
  
  	//check if reset the driver
  	if (priv->watchdog_check_reset_cnt++ >= 3 && !ieee->is_roaming && 
  	    priv->watchdog_last_time != 1)
  	{
  		ResetType = rtl819x_check_reset(priv);
  		priv->watchdog_check_reset_cnt = 3;
  	}
  	if(!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_NORMAL)
  	{
  		priv->ResetProgress = RESET_TYPE_NORMAL;
  		RT_TRACE(COMP_RESET,"%s(): NOMAL RESET\n",__FUNCTION__);
  		return;
  	}
  	/* disable silent reset temply 2008.9.11*/
  
  	if( ((priv->force_reset) || (!priv->bDisableNormalResetCheck && ResetType==RESET_TYPE_SILENT))) // This is control by OID set in Pomelo
  	{
  		priv->watchdog_last_time = 1;
  	}
  	else
  		priv->watchdog_last_time = 0;
  
  	priv->force_reset = false;
  	priv->bForcedSilentReset = false;
  	priv->bResetInProgress = false;
  	RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
  
  }
  
  void watch_dog_timer_callback(unsigned long data)
  {
  	struct r8192_priv *priv = (struct r8192_priv *) data;
  	queue_delayed_work(priv->priv_wq,&priv->watch_dog_wq,0);
  	mod_timer(&priv->watch_dog_timer, jiffies + MSECS(IEEE80211_WATCH_DOG_TIME));
  
  }
  
  static int _rtl8192_up(struct r8192_priv *priv)
  {
  	RT_STATUS init_status = RT_STATUS_SUCCESS;
  	struct net_device *dev = priv->ieee80211->dev;
  
  	priv->up=1;
  	priv->ieee80211->ieee_up=1;
  	priv->bdisable_nic = false;  //YJ,add,091111
  	RT_TRACE(COMP_INIT, "Bringing up iface\n");
  
  	init_status = rtl8192_adapter_start(priv);
  	if(init_status != RT_STATUS_SUCCESS)
  	{
  		RT_TRACE(COMP_ERR,"ERR!!! %s(): initialization is failed!\n",__FUNCTION__);
  		return -1;
  	}
  	RT_TRACE(COMP_INIT, "start adapter finished\n");
  
  	if (priv->eRFPowerState != eRfOn)
  		MgntActSet_RF_State(priv, eRfOn, priv->RfOffReason);
  
  	if(priv->ieee80211->state != IEEE80211_LINKED)
  	ieee80211_softmac_start_protocol(priv->ieee80211);
  	ieee80211_reset_queue(priv->ieee80211);
  	watch_dog_timer_callback((unsigned long) priv);
  	if(!netif_queue_stopped(dev))
  		netif_start_queue(dev);
  	else
  		netif_wake_queue(dev);
  
  	return 0;
  }
  
  
  static int rtl8192_open(struct net_device *dev)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  	int ret;
  
  	down(&priv->wx_sem);
  	ret = rtl8192_up(dev);
  	up(&priv->wx_sem);
  	return ret;
  
  }
  
  
  int rtl8192_up(struct net_device *dev)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  
  	if (priv->up == 1) return -1;
  
  	return _rtl8192_up(priv);
  }
  
  
  static int rtl8192_close(struct net_device *dev)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  	int ret;
  
  	down(&priv->wx_sem);
  
  	ret = rtl8192_down(dev);
  
  	up(&priv->wx_sem);
  
  	return ret;
  
  }
  
  int rtl8192_down(struct net_device *dev)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  
  	if (priv->up == 0) return -1;
  
  #ifdef ENABLE_LPS
  	//LZM for PS-Poll AID issue. 090429
  	if(priv->ieee80211->state == IEEE80211_LINKED)
  		LeisurePSLeave(priv->ieee80211);
  #endif
  
  	priv->up=0;
  	priv->ieee80211->ieee_up = 0;
  	RT_TRACE(COMP_DOWN, "==========>%s()\n", __FUNCTION__);
  /* FIXME */
  	if (!netif_queue_stopped(dev))
  		netif_stop_queue(dev);
  
  	rtl8192_irq_disable(priv);
  	rtl8192_cancel_deferred_work(priv);
  	deinit_hal_dm(priv);
  	del_timer_sync(&priv->watch_dog_timer);
  
  	ieee80211_softmac_stop_protocol(priv->ieee80211,true);
  
  	rtl8192_halt_adapter(priv, false);
  	memset(&priv->ieee80211->current_network, 0 , offsetof(struct ieee80211_network, list));
  
  	RT_TRACE(COMP_DOWN, "<==========%s()\n", __FUNCTION__);
  
  	return 0;
  }
  
  
  void rtl8192_commit(struct r8192_priv *priv)
  {
  	if (priv->up == 0) return ;
  
  
  	ieee80211_softmac_stop_protocol(priv->ieee80211,true);
  
  	rtl8192_irq_disable(priv);
  	rtl8192_halt_adapter(priv, true);
  	_rtl8192_up(priv);
  }
  
  static void rtl8192_restart(struct work_struct *work)
  {
          struct r8192_priv *priv = container_of(work, struct r8192_priv, reset_wq);
  
  	down(&priv->wx_sem);
  
  	rtl8192_commit(priv);
  
  	up(&priv->wx_sem);
  }
  
  static void r8192_set_multicast(struct net_device *dev)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  
  	priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
  }
  
  
  static int r8192_set_mac_adr(struct net_device *dev, void *mac)
  {
  	struct r8192_priv *priv = ieee80211_priv(dev);
  	struct sockaddr *addr = mac;
  
  	down(&priv->wx_sem);
  
  	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
  
  	schedule_work(&priv->reset_wq);
  	up(&priv->wx_sem);
  
  	return 0;
  }
  
  static void r8192e_set_hw_key(struct r8192_priv *priv, struct ieee_param *ipw)
  {
  	struct ieee80211_device *ieee = priv->ieee80211;
  	u8 broadcast_addr[6] = {0xff,0xff,0xff,0xff,0xff,0xff};
  	u32 key[4];
  
  	if (ipw->u.crypt.set_tx) {
  		if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
  			ieee->pairwise_key_type = KEY_TYPE_CCMP;
  		else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
  			ieee->pairwise_key_type = KEY_TYPE_TKIP;
  		else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
  			if (ipw->u.crypt.key_len == 13)
  				ieee->pairwise_key_type = KEY_TYPE_WEP104;
  			else if (ipw->u.crypt.key_len == 5)
  				ieee->pairwise_key_type = KEY_TYPE_WEP40;
  		} else
  			ieee->pairwise_key_type = KEY_TYPE_NA;
  
  		if (ieee->pairwise_key_type) {
  			memcpy(key, ipw->u.crypt.key, 16);
  			EnableHWSecurityConfig8192(priv);
  			/*
  			 * We fill both index entry and 4th entry for pairwise
  			 * key as in IPW interface, adhoc will only get here,
  			 * so we need index entry for its default key serching!
  			 */
  			setKey(priv, 4, ipw->u.crypt.idx,
  			       ieee->pairwise_key_type,
  			       (u8*)ieee->ap_mac_addr, 0, key);
  
  			/* LEAP WEP will never set this. */
  			if (ieee->auth_mode != 2)
  				setKey(priv, ipw->u.crypt.idx, ipw->u.crypt.idx,
  				       ieee->pairwise_key_type,
  				       (u8*)ieee->ap_mac_addr, 0, key);
  		}
  		if ((ieee->pairwise_key_type == KEY_TYPE_CCMP) &&
  		    ieee->pHTInfo->bCurrentHTSupport) {
  			write_nic_byte(priv, 0x173, 1); /* fix aes bug */
  		}
  	} else {
  		memcpy(key, ipw->u.crypt.key, 16);
  		if (strcmp(ipw->u.crypt.alg, "CCMP") == 0)
  			ieee->group_key_type= KEY_TYPE_CCMP;
  		else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0)
  			ieee->group_key_type = KEY_TYPE_TKIP;
  		else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) {
  			if (ipw->u.crypt.key_len == 13)
  				ieee->group_key_type = KEY_TYPE_WEP104;
  			else if (ipw->u.crypt.key_len == 5)
  				ieee->group_key_type = KEY_TYPE_WEP40;
  		} else
  			ieee->group_key_type = KEY_TYPE_NA;
  
  		if (ieee->group_key_type) {
  			setKey(priv, ipw->u.crypt.idx, ipw->u.crypt.idx,
  			       ieee->group_key_type, broadcast_addr, 0, key);
  		}
  	}
  }
  
  /* based on ipw2200 driver */
  static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
  {
  	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
  	struct iwreq *wrq = (struct iwreq *)rq;
  	int ret=-1;
  	struct iw_point *p = &wrq->u.data;
  	struct ieee_param *ipw = NULL;//(struct ieee_param *)wrq->u.data.pointer;
  
  	down(&priv->wx_sem);
  
  
       if (p->length < sizeof(struct ieee_param) || !p->pointer){
               ret = -EINVAL;
               goto out;
       }
  
       ipw = kmalloc(p->length, GFP_KERNEL);
       if (ipw == NULL){
               ret = -ENOMEM;
               goto out;
       }
       if (copy_from_user(ipw, p->pointer, p->length)) {
              kfree(ipw);
              ret = -EFAULT;
              goto out;
       }
  
  	switch (cmd) {
  	case RTL_IOCTL_WPA_SUPPLICANT:
  		/* parse here for HW security */
  		if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION)
  			r8192e_set_hw_key(priv, ipw);
  		ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, &wrq->u.data);
  		break;
  
  	default:
  		ret = -EOPNOTSUPP;
  		break;
  	}
  
  	kfree(ipw);
  out:
  	up(&priv->wx_sem);
  
  	return ret;
  }
  
  static u8 HwRateToMRate90(bool bIsHT, u8 rate)
  {
  	u8  ret_rate = 0x02;
  
  	if(!bIsHT) {
  		switch(rate) {
  			case DESC90_RATE1M:   ret_rate = MGN_1M;         break;
  			case DESC90_RATE2M:   ret_rate = MGN_2M;         break;
  			case DESC90_RATE5_5M: ret_rate = MGN_5_5M;       break;
  			case DESC90_RATE11M:  ret_rate = MGN_11M;        break;
  			case DESC90_RATE6M:   ret_rate = MGN_6M;         break;
  			case DESC90_RATE9M:   ret_rate = MGN_9M;         break;
  			case DESC90_RATE12M:  ret_rate = MGN_12M;        break;
  			case DESC90_RATE18M:  ret_rate = MGN_18M;        break;
  			case DESC90_RATE24M:  ret_rate = MGN_24M;        break;
  			case DESC90_RATE36M:  ret_rate = MGN_36M;        break;
  			case DESC90_RATE48M:  ret_rate = MGN_48M;        break;
  			case DESC90_RATE54M:  ret_rate = MGN_54M;        break;
  
  			default:
  					      RT_TRACE(COMP_RECV, "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n", rate, bIsHT);
  					      break;
  		}
  
  	} else {
  		switch(rate) {
  			case DESC90_RATEMCS0:   ret_rate = MGN_MCS0;    break;
  			case DESC90_RATEMCS1:   ret_rate = MGN_MCS1;    break;
  			case DESC90_RATEMCS2:   ret_rate = MGN_MCS2;    break;
  			case DESC90_RATEMCS3:   ret_rate = MGN_MCS3;    break;
  			case DESC90_RATEMCS4:   ret_rate = MGN_MCS4;    break;
  			case DESC90_RATEMCS5:   ret_rate = MGN_MCS5;    break;
  			case DESC90_RATEMCS6:   ret_rate = MGN_MCS6;    break;
  			case DESC90_RATEMCS7:   ret_rate = MGN_MCS7;    break;
  			case DESC90_RATEMCS8:   ret_rate = MGN_MCS8;    break;
  			case DESC90_RATEMCS9:   ret_rate = MGN_MCS9;    break;
  			case DESC90_RATEMCS10:  ret_rate = MGN_MCS10;   break;
  			case DESC90_RATEMCS11:  ret_rate = MGN_MCS11;   break;
  			case DESC90_RATEMCS12:  ret_rate = MGN_MCS12;   break;
  			case DESC90_RATEMCS13:  ret_rate = MGN_MCS13;   break;
  			case DESC90_RATEMCS14:  ret_rate = MGN_MCS14;   break;
  			case DESC90_RATEMCS15:  ret_rate = MGN_MCS15;   break;
  			case DESC90_RATEMCS32:  ret_rate = (0x80|0x20); break;
  
  			default:
  						RT_TRACE(COMP_RECV, "HwRateToMRate90(): Non supported Rate [%x], bIsHT = %d!!!\n",rate, bIsHT);
  						break;
  		}
  	}
  
  	return ret_rate;
  }
  
  /* Record the TSF time stamp when receiving a packet */
  static void UpdateRxPktTimeStamp8190(struct r8192_priv *priv, struct ieee80211_rx_stats *stats)
  {
  
  	if(stats->bIsAMPDU && !stats->bFirstMPDU) {
  		stats->mac_time[0] = priv->LastRxDescTSFLow;
  		stats->mac_time[1] = priv->LastRxDescTSFHigh;
  	} else {
  		priv->LastRxDescTSFLow = stats->mac_time[0];
  		priv->LastRxDescTSFHigh = stats->mac_time[1];
  	}
  }
  
  static long rtl819x_translate_todbm(u8 signal_strength_index)// 0-100 index.
  {
  	long	signal_power; // in dBm.
  
  	// Translate to dBm (x=0.5y-95).
  	signal_power = (long)((signal_strength_index + 1) >> 1);
  	signal_power -= 95;
  
  	return signal_power;
  }
  
  /* 2008/01/22 MH We can not delcare RSSI/EVM total value of sliding window to
  	be a local static. Otherwise, it may increase when we return from S3/S4. The
  	value will be kept in memory or disk. We must delcare the value in adapter
  	and it will be reinitialized when return from S3/S4. */
  static void rtl8192_process_phyinfo(struct r8192_priv * priv, u8* buffer,struct ieee80211_rx_stats * pprevious_stats, struct ieee80211_rx_stats * pcurrent_stats)
  {
  	bool bcheck = false;
  	u8	rfpath;
  	u32 nspatial_stream, tmp_val;
  	static u32 slide_rssi_index=0, slide_rssi_statistics=0;
  	static u32 slide_evm_index=0, slide_evm_statistics=0;
  	static u32 last_rssi=0, last_evm=0;
  	//cosa add for beacon rssi smoothing
  	static u32 slide_beacon_adc_pwdb_index=0, slide_beacon_adc_pwdb_statistics=0;
  	static u32 last_beacon_adc_pwdb=0;
  
  	struct ieee80211_hdr_3addr *hdr;
  	u16 sc ;
  	unsigned int frag,seq;
  	hdr = (struct ieee80211_hdr_3addr *)buffer;
  	sc = le16_to_cpu(hdr->seq_ctl);
  	frag = WLAN_GET_SEQ_FRAG(sc);
  	seq = WLAN_GET_SEQ_SEQ(sc);
  
  	//
  	// Check whether we should take the previous packet into accounting
  	//
  	if(!pprevious_stats->bIsAMPDU)
  	{
  		// if previous packet is not aggregated packet
  		bcheck = true;
  	}
  
  	if(slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX)
  	{
  		slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX;
  		last_rssi = priv->stats.slide_signal_strength[slide_rssi_index];
  		priv->stats.slide_rssi_total -= last_rssi;
  	}
  	priv->stats.slide_rssi_total += pprevious_stats->SignalStrength;
  
  	priv->stats.slide_signal_strength[slide_rssi_index++] = pprevious_stats->SignalStrength;
  	if(slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX)
  		slide_rssi_index = 0;
  
  	// <1> Showed on UI for user, in dbm
  	tmp_val = priv->stats.slide_rssi_total/slide_rssi_statistics;
  	priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val);
  	pcurrent_stats->rssi = priv->stats.signal_strength;
  	//
  	// If the previous packet does not match the criteria, neglect it
  	//
  	if(!pprevious_stats->bPacketMatchBSSID)
  	{
  		if(!pprevious_stats->bToSelfBA)
  			return;
  	}
  
  	if(!bcheck)
  		return;
  
  	// <2> Showed on UI for engineering
  	// hardware does not provide rssi information for each rf path in CCK
  	if(!pprevious_stats->bIsCCK && pprevious_stats->bPacketToSelf)
  	{
  		for (rfpath = RF90_PATH_A; rfpath < RF90_PATH_C; rfpath++)
  		{
  			if (!rtl8192_phy_CheckIsLegalRFPath(priv, rfpath))
  				continue;
  			RT_TRACE(COMP_DBG, "pPreviousstats->RxMIMOSignalStrength[rfpath] = %d\n", pprevious_stats->RxMIMOSignalStrength[rfpath]);
  			//Fixed by Jacken 2008-03-20
  			if(priv->stats.rx_rssi_percentage[rfpath] == 0)
  			{
  				priv->stats.rx_rssi_percentage[rfpath] = pprevious_stats->RxMIMOSignalStrength[rfpath];
  			}
  			if(pprevious_stats->RxMIMOSignalStrength[rfpath]  > priv->stats.rx_rssi_percentage[rfpath])
  			{
  				priv->stats.rx_rssi_percentage[rfpath] =
  					( (priv->stats.rx_rssi_percentage[rfpath]*(Rx_Smooth_Factor-1)) +
  					(pprevious_stats->RxMIMOSignalStrength[rfpath])) /(Rx_Smooth_Factor);
  				priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath]  + 1;
  			}
  			else
  			{
  				priv->stats.rx_rssi_percentage[rfpath] =
  					( (priv->stats.rx_rssi_percentage[rfpath]*(Rx_Smooth_Factor-1)) +
  					(pprevious_stats->RxMIMOSignalStrength[rfpath])) /(Rx_Smooth_Factor);
  			}
  			RT_TRACE(COMP_DBG, "priv->RxStats.RxRSSIPercentage[rfPath] = %d \n" , priv->stats.rx_rssi_percentage[rfpath]);
  		}
  	}
  
  
  	//
  	// Check PWDB.
  	//
  	//cosa add for beacon rssi smoothing by average.
  	if(pprevious_stats->bPacketBeacon)
  	{
  		/* record the beacon pwdb to the sliding window. */
  		if(slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX)
  		{
  			slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX;
  			last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index];
  			priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb;
  			//	slide_beacon_adc_pwdb_index, last_beacon_adc_pwdb, Adapter->RxStats.Slide_Beacon_Total);
  		}
  		priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll;
  		priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll;
  		slide_beacon_adc_pwdb_index++;
  		if(slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX)
  			slide_beacon_adc_pwdb_index = 0;
  		pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total/slide_beacon_adc_pwdb_statistics;
  		if(pprevious_stats->RxPWDBAll >= 3)
  			pprevious_stats->RxPWDBAll -= 3;
  	}
  
  	RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n",
  				pprevious_stats->bIsCCK? "CCK": "OFDM",
  				pprevious_stats->RxPWDBAll);
  
  	if(pprevious_stats->bPacketToSelf || pprevious_stats->bPacketBeacon || pprevious_stats->bToSelfBA)
  	{
  		if(priv->undecorated_smoothed_pwdb < 0)	// initialize
  		{
  			priv->undecorated_smoothed_pwdb = pprevious_stats->RxPWDBAll;
  		}
  
  		if(pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb)
  		{
  			priv->undecorated_smoothed_pwdb =
  					( ((priv->undecorated_smoothed_pwdb)*(Rx_Smooth_Factor-1)) +
  					(pprevious_stats->RxPWDBAll)) /(Rx_Smooth_Factor);
  			priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1;
  		}
  		else
  		{
  			priv->undecorated_smoothed_pwdb =
  					( ((priv->undecorated_smoothed_pwdb)*(Rx_Smooth_Factor-1)) +
  					(pprevious_stats->RxPWDBAll)) /(Rx_Smooth_Factor);
  		}
  	}
  
  	//
  	// Check EVM
  	//
  	/* record the general EVM to the sliding window. */
  	if(pprevious_stats->SignalQuality == 0)
  	{
  	}
  	else
  	{
  		if(pprevious_stats->bPacketToSelf || pprevious_stats->bPacketBeacon || pprevious_stats->bToSelfBA){
  			if(slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX){
  				slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX;
  				last_evm = priv->stats.slide_evm[slide_evm_index];
  				priv->stats.slide_evm_total -= last_evm;
  			}
  
  			priv->stats.slide_evm_total += pprevious_stats->SignalQuality;
  
  			priv->stats.slide_evm[slide_evm_index++] = pprevious_stats->SignalQuality;
  			if(slide_evm_index >= PHY_RSSI_SLID_WIN_MAX)
  				slide_evm_index = 0;
  
  			// <1> Showed on UI for user, in percentage.
  			tmp_val = priv->stats.slide_evm_total/slide_evm_statistics;
  			//cosa add 10/11/2007, Showed on UI for user in Windows Vista, for Link quality.
  		}
  
  		// <2> Showed on UI for engineering
  		if(pprevious_stats->bPacketToSelf || pprevious_stats->bPacketBeacon || pprevious_stats->bToSelfBA)
  		{
  			for(nspatial_stream = 0; nspatial_stream<2 ; nspatial_stream++) // 2 spatial stream
  			{
  				if(pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1)
  				{
  					if(priv->stats.rx_evm_percentage[nspatial_stream] == 0)	// initialize
  					{
  						priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream];
  					}
  					priv->stats.rx_evm_percentage[nspatial_stream] =
  						( (priv->stats.rx_evm_percentage[nspatial_stream]* (Rx_Smooth_Factor-1)) +
  						(pprevious_stats->RxMIMOSignalQuality[nspatial_stream]* 1)) / (Rx_Smooth_Factor);
  				}
  			}
  		}
  	}
  
  }
  
  static u8 rtl819x_query_rxpwrpercentage(
  	char		antpower
  	)
  {
  	if ((antpower <= -100) || (antpower >= 20))
  	{
  		return	0;
  	}
  	else if (antpower >= 0)
  	{
  		return	100;
  	}
  	else
  	{
  		return	(100+antpower);
  	}
  
  }
  
  static u8
  rtl819x_evm_dbtopercentage(
  	char value
  	)
  {
  	char ret_val;
  
  	ret_val = value;
  
  	if(ret_val >= 0)
  		ret_val = 0;
  	if(ret_val <= -33)
  		ret_val = -33;
  	ret_val = 0 - ret_val;
  	ret_val*=3;
  	if(ret_val == 99)
  		ret_val = 100;
  	return ret_val;
  }
  
  /* We want good-looking for signal strength/quality */
  static long rtl819x_signal_scale_mapping(long currsig)
  {
  	long retsig;
  
  	// Step 1. Scale mapping.
  	if(currsig >= 61 && currsig <= 100)
  	{
  		retsig = 90 + ((currsig - 60) / 4);
  	}
  	else if(currsig >= 41 && currsig <= 60)
  	{
  		retsig = 78 + ((currsig - 40) / 2);
  	}
  	else if(currsig >= 31 && currsig <= 40)
  	{
  		retsig = 66 + (currsig - 30);
  	}
  	else if(currsig >= 21 && currsig <= 30)
  	{
  		retsig = 54 + (currsig - 20);
  	}
  	else if(currsig >= 5 && currsig <= 20)
  	{
  		retsig = 42 + (((currsig - 5) * 2) / 3);
  	}
  	else if(currsig == 4)
  	{
  		retsig = 36;
  	}
  	else if(currsig == 3)
  	{
  		retsig = 27;
  	}
  	else if(currsig == 2)
  	{
  		retsig = 18;
  	}
  	else if(currsig == 1)
  	{
  		retsig = 9;
  	}
  	else
  	{
  		retsig = currsig;
  	}
  
  	return retsig;
  }
  
  static void rtl8192_query_rxphystatus(
  	struct r8192_priv * priv,
  	struct ieee80211_rx_stats * pstats,
  	prx_desc_819x_pci  pdesc,
  	prx_fwinfo_819x_pci   pdrvinfo,
  	struct ieee80211_rx_stats * precord_stats,
  	bool bpacket_match_bssid,
  	bool bpacket_toself,
  	bool bPacketBeacon,
  	bool bToSelfBA
  	)
  {
  	//PRT_RFD_STATUS		pRtRfdStatus = &(pRfd->Status);
  	phy_sts_ofdm_819xpci_t* pofdm_buf;
  	phy_sts_cck_819xpci_t	*	pcck_buf;
  	phy_ofdm_rx_status_rxsc_sgien_exintfflag* prxsc;
  	u8				*prxpkt;
  	u8				i,max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
  	char				rx_pwr[4], rx_pwr_all=0;
  	//long				rx_avg_pwr = 0;
  	char				rx_snrX, rx_evmX;
  	u8				evm, pwdb_all;
  	u32 			RSSI, total_rssi=0;//, total_evm=0;
  //	long				signal_strength_index = 0;
  	u8				is_cck_rate=0;
  	u8				rf_rx_num = 0;
  
  	is_cck_rate = rx_hal_is_cck_rate(pdrvinfo);
  
  	// Record it for next packet processing
  	memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats));
  	pstats->bPacketMatchBSSID = precord_stats->bPacketMatchBSSID = bpacket_match_bssid;
  	pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself;
  	pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate;//RX_HAL_IS_CCK_RATE(pDrvInfo);
  	pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon;
  	pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA;
  	/*2007.08.30 requested by SD3 Jerry */
  	if (priv->phy_check_reg824 == 0)
  	{
  		priv->phy_reg824_bit9 = rtl8192_QueryBBReg(priv, rFPGA0_XA_HSSIParameter2, 0x200);
  		priv->phy_check_reg824 = 1;
  	}
  
  
  	prxpkt = (u8*)pdrvinfo;
  
  	/* Move pointer to the 16th bytes. Phy status start address. */
  	prxpkt += sizeof(rx_fwinfo_819x_pci);
  
  	/* Initial the cck and ofdm buffer pointer */
  	pcck_buf = (phy_sts_cck_819xpci_t *)prxpkt;
  	pofdm_buf = (phy_sts_ofdm_819xpci_t *)prxpkt;
  
  	pstats->RxMIMOSignalQuality[0] = -1;
  	pstats->RxMIMOSignalQuality[1] = -1;
  	precord_stats->RxMIMOSignalQuality[0] = -1;
  	precord_stats->RxMIMOSignalQuality[1] = -1;
  
  	if(is_cck_rate)
  	{
  		//
  		// (1)Hardware does not provide RSSI for CCK
  		//
  
  		//
  		// (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive)
  		//
  		u8 report;//, cck_agc_rpt;
  
  		if (!priv->phy_reg824_bit9)
  		{
  			report = pcck_buf->cck_agc_rpt & 0xc0;
  			report = report>>6;
  			switch(report)
  			{
  				//Fixed by Jacken from Bryant 2008-03-20
  				//Original value is -38 , -26 , -14 , -2
  				//Fixed value is -35 , -23 , -11 , 6
  				case 0x3:
  					rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e);
  					break;
  				case 0x2:
  					rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e);
  					break;
  				case 0x1:
  					rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e);
  					break;
  				case 0x0:
  					rx_pwr_all = 8 - (pcck_buf->cck_agc_rpt & 0x3e);
  					break;
  			}
  		}
  		else
  		{
  			report = pcck_buf->cck_agc_rpt & 0x60;
  			report = report>>5;
  			switch(report)
  			{
  				case 0x3:
  					rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f)<<1) ;
  					break;
  				case 0x2:
  					rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f)<<1);
  					break;
  				case 0x1:
  					rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f)<<1) ;
  					break;
  				case 0x0:
  					rx_pwr_all = -8 - ((pcck_buf->cck_agc_rpt & 0x1f)<<1) ;
  					break;
  			}
  		}
  
  		pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
  		pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
  		pstats->RecvSignalPower = rx_pwr_all;
  
  		//
  		// (3) Get Signal Quality (EVM)
  		//
  		if(bpacket_match_bssid)
  		{
  			u8	sq;
  
  			if(pstats->RxPWDBAll > 40)
  			{
  				sq = 100;
  			}else
  			{
  				sq = pcck_buf->sq_rpt;
  
  				if(pcck_buf->sq_rpt > 64)
  					sq = 0;
  				else if (pcck_buf->sq_rpt < 20)
  					sq = 100;
  				else
  					sq = ((64-sq) * 100) / 44;
  			}
  			pstats->SignalQuality = precord_stats->SignalQuality = sq;
  			pstats->RxMIMOSignalQuality[0] = precord_stats->RxMIMOSignalQuality[0] = sq;
  			pstats->RxMIMOSignalQuality[1] = precord_stats->RxMIMOSignalQuality[1] = -1;
  		}
  	}
  	else
  	{
  		//
  		// (1)Get RSSI for HT rate
  		//
  		for(i=RF90_PATH_A; i<RF90_PATH_MAX; i++)
  		{
  			// 2008/01/30 MH we will judge RF RX path now.
  			if (priv->brfpath_rxenable[i])
  				rf_rx_num++;
  			//else
  				//continue;
  
  			//Fixed by Jacken from Bryant 2008-03-20
  			//Original value is 106
  			rx_pwr[i] = ((pofdm_buf->trsw_gain_X[i]&0x3F)*2) - 110;
  
  			//Get Rx snr value in DB
  			tmp_rxsnr = pofdm_buf->rxsnr_X[i];
  			rx_snrX = (char)(tmp_rxsnr);
  			rx_snrX /= 2;
  
  			/* Translate DBM to percentage. */
  			RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]);
  			if (priv->brfpath_rxenable[i])
  				total_rssi += RSSI;
  
  			/* Record Signal Strength for next packet */
  			if(bpacket_match_bssid)
  			{
  				pstats->RxMIMOSignalStrength[i] =(u8) RSSI;
  				precord_stats->RxMIMOSignalStrength[i] =(u8) RSSI;
  			}
  		}
  
  
  		//
  		// (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive)
  		//
  		//Fixed by Jacken from Bryant 2008-03-20
  		//Original value is 106
  		rx_pwr_all = (((pofdm_buf->pwdb_all ) >> 1 )& 0x7f) -106;
  		pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all);
  
  		pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all;
  		pstats->RxPower = precord_stats->RxPower =	rx_pwr_all;
  		pstats->RecvSignalPower = rx_pwr_all;
  		//
  		// (3)EVM of HT rate
  		//
  		if(pdrvinfo->RxHT && pdrvinfo->RxRate>=DESC90_RATEMCS8 &&
  			pdrvinfo->RxRate<=DESC90_RATEMCS15)
  			max_spatial_stream = 2; //both spatial stream make sense
  		else
  			max_spatial_stream = 1; //only spatial stream 1 makes sense
  
  		for(i=0; i<max_spatial_stream; i++)
  		{
  			tmp_rxevm = pofdm_buf->rxevm_X[i];
  			rx_evmX = (char)(tmp_rxevm);
  
  			// Do not use shift operation like "rx_evmX >>= 1" because the compilor of free build environment
  			// fill most significant bit to "zero" when doing shifting operation which may change a negative
  			// value to positive one, then the dbm value (which is supposed to be negative)  is not correct anymore.
  			rx_evmX /= 2;	//dbm
  
  			evm = rtl819x_evm_dbtopercentage(rx_evmX);
  			if(bpacket_match_bssid)
  			{
  				if(i==0) // Fill value in RFD, Get the first spatial stream only
  					pstats->SignalQuality = precord_stats->SignalQuality = (u8)(evm & 0xff);
  				pstats->RxMIMOSignalQuality[i] = precord_stats->RxMIMOSignalQuality[i] = (u8)(evm & 0xff);
  			}
  		}
  
  
  		/* record rx statistics for debug */
  		rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg;
  		prxsc = (phy_ofdm_rx_status_rxsc_sgien_exintfflag *)&rxsc_sgien_exflg;
  	}
  
  	//UI BSS List signal strength(in percentage), make it good looking, from 0~100.
  	//It is assigned to the BSS List in GetValueFromBeaconOrProbeRsp().
  	if(is_cck_rate)
  	{
  		pstats->SignalStrength = precord_stats->SignalStrength = (u8)(rtl819x_signal_scale_mapping((long)pwdb_all));//PWDB_ALL;
  
  	}
  	else
  	{
  		//pRfd->Status.SignalStrength = pRecordRfd->Status.SignalStrength = (u1Byte)(SignalScaleMapping(total_rssi/=RF90_PATH_MAX));//(u1Byte)(total_rssi/=RF90_PATH_MAX);
  		// We can judge RX path number now.
  		if (rf_rx_num != 0)
  			pstats->SignalStrength = precord_stats->SignalStrength = (u8)(rtl819x_signal_scale_mapping((long)(total_rssi/=rf_rx_num)));
  	}
  }
  
  static void
  rtl8192_record_rxdesc_forlateruse(
  	struct ieee80211_rx_stats * psrc_stats,
  	struct ieee80211_rx_stats * ptarget_stats
  )
  {
  	ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU;
  	ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU;
  }
  
  
  
  static void TranslateRxSignalStuff819xpci(struct r8192_priv *priv,
          struct sk_buff *skb,
          struct ieee80211_rx_stats * pstats,
          prx_desc_819x_pci pdesc,
          prx_fwinfo_819x_pci pdrvinfo)
  {
      // TODO: We must only check packet for current MAC address. Not finish
      bool bpacket_match_bssid, bpacket_toself;
      bool bPacketBeacon=false, bToSelfBA=false;
      struct ieee80211_hdr_3addr *hdr;
      u16 fc,type;
  
      // Get Signal Quality for only RX data queue (but not command queue)
  
      u8* tmp_buf;
      u8	*praddr;
  
      /* Get MAC frame start address. */
      tmp_buf = skb->data;
  
      hdr = (struct ieee80211_hdr_3addr *)tmp_buf;
      fc = le16_to_cpu(hdr->frame_ctl);
      type = WLAN_FC_GET_TYPE(fc);
      praddr = hdr->addr1;
  
      /* Check if the received packet is acceptabe. */
      bpacket_match_bssid = ((IEEE80211_FTYPE_CTL != type) &&
              (!compare_ether_addr(priv->ieee80211->current_network.bssid,	(fc & IEEE80211_FCTL_TODS)? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS )? hdr->addr2 : hdr->addr3))
              && (!pstats->bHwError) && (!pstats->bCRC)&& (!pstats->bICV));
      bpacket_toself =  bpacket_match_bssid & (!compare_ether_addr(praddr, priv->ieee80211->dev->dev_addr));
  
      if(WLAN_FC_GET_FRAMETYPE(fc)== IEEE80211_STYPE_BEACON)
      {
          bPacketBeacon = true;
      }
      if(WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK)
      {
          if (!compare_ether_addr(praddr, priv->ieee80211->dev->dev_addr))
              bToSelfBA = true;
      }
  
      //
      // Process PHY information for previous packet (RSSI/PWDB/EVM)
      //
      // Because phy information is contained in the last packet of AMPDU only, so driver
      // should process phy information of previous packet
      rtl8192_process_phyinfo(priv, tmp_buf, &priv->previous_stats, pstats);
      rtl8192_query_rxphystatus(priv, pstats, pdesc, pdrvinfo, &priv->previous_stats, bpacket_match_bssid,
              bpacket_toself ,bPacketBeacon, bToSelfBA);
      rtl8192_record_rxdesc_forlateruse(pstats, &priv->previous_stats);
  
  }
  
  
  static void rtl8192_tx_resume(struct r8192_priv *priv)
  {
  	struct ieee80211_device *ieee = priv->ieee80211;
  	struct sk_buff *skb;
  	int i;
  
  	for (i = BK_QUEUE; i < TXCMD_QUEUE; i++) {
  		while ((!skb_queue_empty(&ieee->skb_waitQ[i])) &&
  		       (priv->ieee80211->check_nic_enough_desc(ieee, i) > 0)) {
  			/* 1. dequeue the packet from the wait queue */
  			skb = skb_dequeue(&ieee->skb_waitQ[i]);
  			/* 2. tx the packet directly */
  			ieee->softmac_data_hard_start_xmit(skb, ieee, 0);
  		}
  	}
  }
  
  static void rtl8192_irq_tx_tasklet(unsigned long arg)
  {
  	struct r8192_priv *priv = (struct r8192_priv*) arg;
  	struct rtl8192_tx_ring *mgnt_ring = &priv->tx_ring[MGNT_QUEUE];
  	unsigned long flags;
  
  	/* check if we need to report that the management queue is drained */
  	spin_lock_irqsave(&priv->irq_th_lock, flags);
  
  	if (!skb_queue_len(&mgnt_ring->queue) &&
  	    priv->ieee80211->ack_tx_to_ieee &&
  	    rtl8192_is_tx_queue_empty(priv->ieee80211)) {
  		priv->ieee80211->ack_tx_to_ieee = 0;
  		ieee80211_ps_tx_ack(priv->ieee80211, 1);
  	}
  
  	spin_unlock_irqrestore(&priv->irq_th_lock, flags);
  
  	rtl8192_tx_resume(priv);
  }
  
  /* Record the received data rate */
  static void UpdateReceivedRateHistogramStatistics8190(
  	struct r8192_priv *priv,
  	struct ieee80211_rx_stats* pstats
  	)
  {
  	u32 rcvType=1;   //0: Total, 1:OK, 2:CRC, 3:ICV
  	u32 rateIndex;
  	u32 preamble_guardinterval;  //1: short preamble/GI, 0: long preamble/GI
  
  	if(pstats->bCRC)
  		rcvType = 2;
  	else if(pstats->bICV)
  		rcvType = 3;
  
  	if(pstats->bShortPreamble)
  		preamble_guardinterval = 1;// short
  	else
  		preamble_guardinterval = 0;// long
  
  	switch(pstats->rate)
  	{
  		//
  		// CCK rate
  		//
  		case MGN_1M:    rateIndex = 0;  break;
  	    	case MGN_2M:    rateIndex = 1;  break;
  	    	case MGN_5_5M:  rateIndex = 2;  break;
  	    	case MGN_11M:   rateIndex = 3;  break;
  		//
  		// Legacy OFDM rate
  		//
  	    	case MGN_6M:    rateIndex = 4;  break;
  	    	case MGN_9M:    rateIndex = 5;  break;
  	    	case MGN_12M:   rateIndex = 6;  break;
  	    	case MGN_18M:   rateIndex = 7;  break;
  	    	case MGN_24M:   rateIndex = 8;  break;
  	    	case MGN_36M:   rateIndex = 9;  break;
  	    	case MGN_48M:   rateIndex = 10; break;
  	    	case MGN_54M:   rateIndex = 11; break;
  		//
  		// 11n High throughput rate
  		//
  	    	case MGN_MCS0:  rateIndex = 12; break;
  	    	case MGN_MCS1:  rateIndex = 13; break;
  	    	case MGN_MCS2:  rateIndex = 14; break;
  	    	case MGN_MCS3:  rateIndex = 15; break;
  	    	case MGN_MCS4:  rateIndex = 16; break;
  	    	case MGN_MCS5:  rateIndex = 17; break;
  	    	case MGN_MCS6:  rateIndex = 18; break;
  	    	case MGN_MCS7:  rateIndex = 19; break;
  	    	case MGN_MCS8:  rateIndex = 20; break;
  	    	case MGN_MCS9:  rateIndex = 21; break;
  	    	case MGN_MCS10: rateIndex = 22; break;
  	    	case MGN_MCS11: rateIndex = 23; break;
  	    	case MGN_MCS12: rateIndex = 24; break;
  	    	case MGN_MCS13: rateIndex = 25; break;
  	    	case MGN_MCS14: rateIndex = 26; break;
  	    	case MGN_MCS15: rateIndex = 27; break;
  		default:        rateIndex = 28; break;
  	}
  	priv->stats.received_rate_histogram[0][rateIndex]++; //total
  	priv->stats.received_rate_histogram[rcvType][rateIndex]++;
  }
  
  static void rtl8192_rx(struct r8192_priv *priv)
  {
      struct ieee80211_hdr_1addr *ieee80211_hdr = NULL;
      bool unicast_packet = false;
      struct ieee80211_rx_stats stats = {
          .signal = 0,
          .noise = -98,
          .rate = 0,
          .freq = IEEE80211_24GHZ_BAND,
      };
      unsigned int count = priv->rxringcount;
      prx_fwinfo_819x_pci pDrvInfo = NULL;
      struct sk_buff *new_skb;
  
      while (count--) {
          rx_desc_819x_pci *pdesc = &priv->rx_ring[priv->rx_idx];//rx descriptor
          struct sk_buff *skb = priv->rx_buf[priv->rx_idx];//rx pkt
  
          if (pdesc->OWN)
              /* wait data to be filled by hardware */
              return;
  
              stats.bICV = pdesc->ICV;
              stats.bCRC = pdesc->CRC32;
              stats.bHwError = pdesc->CRC32 | pdesc->ICV;
  
              stats.Length = pdesc->Length;
              if(stats.Length < 24)
                  stats.bHwError |= 1;
  
              if(stats.bHwError) {
                  stats.bShift = false;
                  goto done;
              }
                  pDrvInfo = NULL;
                  new_skb = dev_alloc_skb(priv->rxbuffersize);
  
                  if (unlikely(!new_skb))
                      goto done;
  
                  stats.RxDrvInfoSize = pdesc->RxDrvInfoSize;
                  stats.RxBufShift = ((pdesc->Shift)&0x03);
                  stats.Decrypted = !pdesc->SWDec;
  
                  pci_dma_sync_single_for_cpu(priv->pdev,
                       *((dma_addr_t *)skb->cb),
                       priv->rxbuffersize,
                       PCI_DMA_FROMDEVICE);
                  skb_put(skb, pdesc->Length);
                  pDrvInfo = (rx_fwinfo_819x_pci *)(skb->data + stats.RxBufShift);
                  skb_reserve(skb, stats.RxDrvInfoSize + stats.RxBufShift);
  
                  stats.rate = HwRateToMRate90((bool)pDrvInfo->RxHT, (u8)pDrvInfo->RxRate);
                  stats.bShortPreamble = pDrvInfo->SPLCP;
  
                  /* it is debug only. It should be disabled in released driver.
                   * 2007.1.11 by Emily
                   * */
                  UpdateReceivedRateHistogramStatistics8190(priv, &stats);
  
                  stats.bIsAMPDU = (pDrvInfo->PartAggr==1);
                  stats.bFirstMPDU = (pDrvInfo->PartAggr==1) && (pDrvInfo->FirstAGGR==1);
  
                  stats.TimeStampLow = pDrvInfo->TSFL;
                  stats.TimeStampHigh = read_nic_dword(priv, TSFR+4);
  
                  UpdateRxPktTimeStamp8190(priv, &stats);
  
                  //
                  // Get Total offset of MPDU Frame Body
                  //
                  if((stats.RxBufShift + stats.RxDrvInfoSize) > 0)
                      stats.bShift = 1;
  
                  /* ???? */
                  TranslateRxSignalStuff819xpci(priv, skb, &stats, pdesc, pDrvInfo);
  
                  /* Rx A-MPDU */
                  if(pDrvInfo->FirstAGGR==1 || pDrvInfo->PartAggr == 1)
                      RT_TRACE(COMP_RXDESC, "pDrvInfo->FirstAGGR = %d, pDrvInfo->PartAggr = %d\n",
                              pDrvInfo->FirstAGGR, pDrvInfo->PartAggr);
  		   skb_trim(skb, skb->len - 4/*sCrcLng*/);
                  /* rx packets statistics */
                  ieee80211_hdr = (struct ieee80211_hdr_1addr *)skb->data;
                  unicast_packet = false;
  
                  if(is_broadcast_ether_addr(ieee80211_hdr->addr1)) {
                      //TODO
                  }else if(is_multicast_ether_addr(ieee80211_hdr->addr1)){
                      //TODO
                  }else {
                      /* unicast packet */
                      unicast_packet = true;
                  }
  
                  if(!ieee80211_rtl_rx(priv->ieee80211, skb, &stats)){
                      dev_kfree_skb_any(skb);
                  } else {
                      priv->stats.rxok++;
                      if(unicast_packet) {
                          priv->stats.rxbytesunicast += skb->len;
                      }
                  }
  
  		pci_unmap_single(priv->pdev, *((dma_addr_t *) skb->cb),
  			priv->rxbuffersize, PCI_DMA_FROMDEVICE);
  
                  skb = new_skb;
                  priv->rx_buf[priv->rx_idx] = skb;
                  *((dma_addr_t *) skb->cb) = pci_map_single(priv->pdev, skb_tail_pointer(skb), priv->rxbuffersize, PCI_DMA_FROMDEVICE);
  
  done:
          pdesc->BufferAddress = cpu_to_le32(*((dma_addr_t *)skb->cb));
          pdesc->OWN = 1;
          pdesc->Length = priv->rxbuffersize;
          if (priv->rx_idx == priv->rxringcount-1)
              pdesc->EOR = 1;
          priv->rx_idx = (priv->rx_idx + 1) % priv->rxringcount;
      }
  
  }
  
  static void rtl8192_irq_rx_tasklet(unsigned long arg)
  {
  	struct r8192_priv *priv = (struct r8192_priv*) arg;
  	rtl8192_rx(priv);
  	/* unmask RDU */
         write_nic_dword(priv, INTA_MASK, read_nic_dword(priv, INTA_MASK) | IMR_RDU);
  }
  
  static const struct net_device_ops rtl8192_netdev_ops = {
  	.ndo_open =			rtl8192_open,
  	.ndo_stop =			rtl8192_close,
  	.ndo_tx_timeout =		tx_timeout,
  	.ndo_do_ioctl =			rtl8192_ioctl,
  	.ndo_set_multicast_list =	r8192_set_multicast,
  	.ndo_set_mac_address =		r8192_set_mac_adr,
  	.ndo_start_xmit = 		ieee80211_rtl_xmit,
  };
  
  static int __devinit rtl8192_pci_probe(struct pci_dev *pdev,
  			 const struct pci_device_id *id)
  {
  	struct net_device *dev = NULL;
  	struct r8192_priv *priv= NULL;
  	u8 unit = 0;
  	int ret = -ENODEV;
  	unsigned long pmem_start, pmem_len, pmem_flags;
  	u8 revisionid;
  
  	RT_TRACE(COMP_INIT,"Configuring chip resources\n");
  
  	if( pci_enable_device (pdev) ){
  		RT_TRACE(COMP_ERR,"Failed to enable PCI device");
  		return -EIO;
  	}
  
  	pci_set_master(pdev);
  	//pci_set_wmi(pdev);
  	pci_set_dma_mask(pdev, 0xffffff00ULL);
  	pci_set_consistent_dma_mask(pdev,0xffffff00ULL);
  	dev = alloc_ieee80211(sizeof(struct r8192_priv));
  	if (!dev) {
  		ret = -ENOMEM;
  		goto fail_free;
  	}
  
  	pci_set_drvdata(pdev, dev);
  	SET_NETDEV_DEV(dev, &pdev->dev);
  	priv = ieee80211_priv(dev);
  	priv->ieee80211 = netdev_priv(dev);
  	priv->pdev=pdev;
  	if((pdev->subsystem_vendor == PCI_VENDOR_ID_DLINK)&&(pdev->subsystem_device == 0x3304)){
  		priv->ieee80211->bSupportRemoteWakeUp = 1;
  	} else
  	{
  		priv->ieee80211->bSupportRemoteWakeUp = 0;
  	}
  
  	pmem_start = pci_resource_start(pdev, 1);
  	pmem_len = pci_resource_len(pdev, 1);
  	pmem_flags = pci_resource_flags (pdev, 1);
  
  	if (!(pmem_flags & IORESOURCE_MEM)) {
  		RT_TRACE(COMP_ERR, "region #1 not a MMIO resource, aborting\n");
  		goto fail;
  	}
  
  	//DMESG("Memory mapped space @ 0x%08lx ", pmem_start);
  	if( ! request_mem_region(pmem_start, pmem_len, RTL819xE_MODULE_NAME)) {
  		RT_TRACE(COMP_ERR,"request_mem_region failed!\n");
  		goto fail;
  	}
  
  	priv->mem_start = ioremap_nocache(pmem_start, pmem_len);
  	if (!priv->mem_start) {
  		RT_TRACE(COMP_ERR,"ioremap failed!\n");
  		goto fail1;
  	}
  
  	dev->mem_start = (unsigned long) priv->mem_start;
  	dev->mem_end = (unsigned long) (priv->mem_start +
  					pci_resource_len(pdev, 0));
  
          /* We disable the RETRY_TIMEOUT register (0x41) to keep
           * PCI Tx retries from interfering with C3 CPU state */
           pci_write_config_byte(pdev, 0x41, 0x00);
  
  
  	pci_read_config_byte(pdev, 0x08, &revisionid);
  	/* If the revisionid is 0x10, the device uses rtl8192se. */
  	if (pdev->device == 0x8192 && revisionid == 0x10)
  		goto fail1;
  
  	pci_read_config_byte(pdev, 0x05, &unit);
  	pci_write_config_byte(pdev, 0x05, unit & (~0x04));
  
  	dev->irq = pdev->irq;
  	priv->irq = 0;
  
  	dev->netdev_ops = &rtl8192_netdev_ops;
  
  	dev->wireless_handlers = &r8192_wx_handlers_def;
  	dev->type=ARPHRD_ETHER;
  
  	dev->watchdog_timeo = HZ*3;
  
  	if (dev_alloc_name(dev, ifname) < 0){
                  RT_TRACE(COMP_INIT, "Oops: devname already taken! Trying wlan%%d...\n");
  		strcpy(ifname, "wlan%d");
  		dev_alloc_name(dev, ifname);
          }
  
  	RT_TRACE(COMP_INIT, "Driver probe completed1\n");
  	if (rtl8192_init(priv)!=0) {
  		RT_TRACE(COMP_ERR, "Initialization failed\n");
  		goto fail;
  	}
  
  	register_netdev(dev);
  	RT_TRACE(COMP_INIT, "dev name=======> %s\n",dev->name);
  	rtl8192_proc_init_one(priv);
  
  
  	RT_TRACE(COMP_INIT, "Driver probe completed\n");
  	return 0;
  
  fail1:
  
  	if (priv->mem_start) {
  		iounmap(priv->mem_start);
  		release_mem_region( pci_resource_start(pdev, 1),
  				    pci_resource_len(pdev, 1) );
  	}
  
  fail:
  	if(dev){
  
  		if (priv->irq) {
  			free_irq(priv->irq, priv);
  			priv->irq = 0;
  		}
  		free_ieee80211(dev);
  	}
  
  fail_free:
  	pci_disable_device(pdev);
  
  	DMESG("wlan driver load failed\n");
  	pci_set_drvdata(pdev, NULL);
  	return ret;
  
  }
  
  /* detach all the work and timer structure declared or inititialized
   * in r8192_init function.
   * */
  static void rtl8192_cancel_deferred_work(struct r8192_priv* priv)
  {
  	/* call cancel_work_sync instead of cancel_delayed_work if and only if Linux_version_code
           * is  or is newer than 2.6.20 and work structure is defined to be struct work_struct.
           * Otherwise call cancel_delayed_work is enough.
           * FIXME (2.6.20 should 2.6.22, work_struct should not cancel)
           * */
  	cancel_delayed_work(&priv->watch_dog_wq);
  	cancel_delayed_work(&priv->update_beacon_wq);
  	cancel_delayed_work(&priv->ieee80211->hw_wakeup_wq);
  	cancel_delayed_work(&priv->gpio_change_rf_wq);
  	cancel_work_sync(&priv->reset_wq);
  	cancel_work_sync(&priv->qos_activate);
  }
  
  
  static void __devexit rtl8192_pci_disconnect(struct pci_dev *pdev)
  {
  	struct net_device *dev = pci_get_drvdata(pdev);
  	struct r8192_priv *priv ;
  	u32 i;
  
  	if (dev) {
  
  		unregister_netdev(dev);
  
  		priv = ieee80211_priv(dev);
  
  		rtl8192_proc_remove_one(priv);
  
  		rtl8192_down(dev);
  		if (priv->pFirmware)
  		{
  			vfree(priv->pFirmware);
  			priv->pFirmware = NULL;
  		}
  		destroy_workqueue(priv->priv_wq);
  
  		/* free tx/rx rings */
  		rtl8192_free_rx_ring(priv);
  		for (i = 0; i < MAX_TX_QUEUE_COUNT; i++)
  			rtl8192_free_tx_ring(priv, i);
  
  		if (priv->irq) {
  			printk("Freeing irq %d\n", priv->irq);
  			free_irq(priv->irq, priv);
  			priv->irq = 0;
  		}
  
  		if (priv->mem_start) {
  			iounmap(priv->mem_start);
  			release_mem_region( pci_resource_start(pdev, 1),
  					    pci_resource_len(pdev, 1) );
  		}
  
  		free_ieee80211(dev);
  	}
  
  	pci_disable_device(pdev);
  	RT_TRACE(COMP_DOWN, "wlan driver removed\n");
  }
  
  extern int ieee80211_rtl_init(void);
  extern void ieee80211_rtl_exit(void);
  
  static int __init rtl8192_pci_module_init(void)
  {
  	int retval;
  
  	retval = ieee80211_rtl_init();
  	if (retval)
  		return retval;
  
  	printk(KERN_INFO "\nLinux kernel driver for RTL8192 based WLAN cards\n");
  	printk(KERN_INFO "Copyright (c) 2007-2008, Realsil Wlan\n");
  	RT_TRACE(COMP_INIT, "Initializing module\n");
  	rtl8192_proc_module_init();
        if(0!=pci_register_driver(&rtl8192_pci_driver))
  	{
  		DMESG("No device found");
  		/*pci_unregister_driver (&rtl8192_pci_driver);*/
  		return -ENODEV;
  	}
  	return 0;
  }
  
  
  static void __exit rtl8192_pci_module_exit(void)
  {
  	pci_unregister_driver(&rtl8192_pci_driver);
  
  	RT_TRACE(COMP_DOWN, "Exiting\n");
  	rtl8192_proc_module_remove();
  	ieee80211_rtl_exit();
  }
  
  static irqreturn_t rtl8192_interrupt(int irq, void *param)
  {
  	struct r8192_priv *priv = param;
  	struct net_device *dev = priv->ieee80211->dev;
  	unsigned long flags;
  	u32 inta;
  	irqreturn_t ret = IRQ_HANDLED;
  
  	spin_lock_irqsave(&priv->irq_th_lock, flags);
  
  	/* ISR: 4bytes */
  
  	inta = read_nic_dword(priv, ISR); /* & priv->IntrMask; */
  	write_nic_dword(priv, ISR, inta); /* reset int situation */
  
  	if (!inta) {
  		/*
  		 * most probably we can safely return IRQ_NONE,
  		 * but for now is better to avoid problems
  		 */
  		goto out_unlock;
  	}
  
  	if (inta == 0xffff) {
  		/* HW disappared */
  		goto out_unlock;
  	}
  
  	if (!netif_running(dev))
  		goto out_unlock;
  
  	if (inta & IMR_TBDOK) {
  		RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
  		rtl8192_tx_isr(priv, BEACON_QUEUE);
  		priv->stats.txbeaconokint++;
  	}
  
  	if (inta & IMR_TBDER) {
  		RT_TRACE(COMP_INTR, "beacon ok interrupt!\n");
  		rtl8192_tx_isr(priv, BEACON_QUEUE);
  		priv->stats.txbeaconerr++;
  	}
  
  	if (inta & IMR_MGNTDOK ) {
  		RT_TRACE(COMP_INTR, "Manage ok interrupt!\n");
  		priv->stats.txmanageokint++;
  		rtl8192_tx_isr(priv, MGNT_QUEUE);
  	}
  
  	if (inta & IMR_COMDOK)
  	{
  		priv->stats.txcmdpktokint++;
  		rtl8192_tx_isr(priv, TXCMD_QUEUE);
  	}
  
  	if (inta & IMR_ROK) {
  		priv->stats.rxint++;
  		tasklet_schedule(&priv->irq_rx_tasklet);
  	}
  
  	if (inta & IMR_BcnInt) {
  		RT_TRACE(COMP_INTR, "prepare beacon for interrupt!\n");
  		tasklet_schedule(&priv->irq_prepare_beacon_tasklet);
  	}
  
  	if (inta & IMR_RDU) {
  		RT_TRACE(COMP_INTR, "rx descriptor unavailable!\n");
  		priv->stats.rxrdu++;
  		/* reset int situation */
  		write_nic_dword(priv, INTA_MASK, read_nic_dword(priv, INTA_MASK) & ~IMR_RDU);
  		tasklet_schedule(&priv->irq_rx_tasklet);
  	}
  
  	if (inta & IMR_RXFOVW) {
  		RT_TRACE(COMP_INTR, "rx overflow !\n");
  		priv->stats.rxoverflow++;
  		tasklet_schedule(&priv->irq_rx_tasklet);
  	}
  
  	if (inta & IMR_TXFOVW)
  		priv->stats.txoverflow++;
  
  	if (inta & IMR_BKDOK) {
  		RT_TRACE(COMP_INTR, "BK Tx OK interrupt!\n");
  		priv->stats.txbkokint++;
  		priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
  		rtl8192_tx_isr(priv, BK_QUEUE);
  	}
  
  	if (inta & IMR_BEDOK) {
  		RT_TRACE(COMP_INTR, "BE TX OK interrupt!\n");
  		priv->stats.txbeokint++;
  		priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
  		rtl8192_tx_isr(priv, BE_QUEUE);
  	}
  
  	if (inta & IMR_VIDOK) {
  		RT_TRACE(COMP_INTR, "VI TX OK interrupt!\n");
  		priv->stats.txviokint++;
  		priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
  		rtl8192_tx_isr(priv, VI_QUEUE);
  	}
  
  	if (inta & IMR_VODOK) {
  		priv->stats.txvookint++;
  		priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++;
  		rtl8192_tx_isr(priv, VO_QUEUE);
  	}
  
  out_unlock:
  	spin_unlock_irqrestore(&priv->irq_th_lock, flags);
  
  	return ret;
  }
  
  void EnableHWSecurityConfig8192(struct r8192_priv *priv)
  {
          u8 SECR_value = 0x0;
  	struct ieee80211_device* ieee = priv->ieee80211;
  
  	SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
  
  	if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2))
  	{
  		SECR_value |= SCR_RxUseDK;
  		SECR_value |= SCR_TxUseDK;
  	}
  	else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP)))
  	{
  		SECR_value |= SCR_RxUseDK;
  		SECR_value |= SCR_TxUseDK;
  	}
  
          //add HWSec active enable here.
  //default using hwsec. when peer AP is in N mode only and pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates it), use software security. when peer AP is in b,g,n mode mixed and pairwise_key_type is none_aes, use g mode hw security. WB on 2008.7.4
  	ieee->hwsec_active = 1;
  
  	if ((ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE) || !hwwep)//!ieee->hwsec_support) //add hwsec_support flag to totol control hw_sec on/off
  	{
  		ieee->hwsec_active = 0;
  		SECR_value &= ~SCR_RxDecEnable;
  	}
  
  	RT_TRACE(COMP_SEC,"%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", __FUNCTION__,
  			ieee->hwsec_active, ieee->pairwise_key_type, SECR_value);
  	{
                  write_nic_byte(priv, SECR,  SECR_value);//SECR_value |  SCR_UseDK );
          }
  
  }
  #define TOTAL_CAM_ENTRY 32
  //#define CAM_CONTENT_COUNT 8
  void setKey(struct r8192_priv *priv, u8 EntryNo, u8 KeyIndex, u16 KeyType,
  	    const u8 *MacAddr, u8 DefaultKey, u32 *KeyContent)
  {
  	u32 TargetCommand = 0;
  	u32 TargetContent = 0;
  	u16 usConfig = 0;
  	u8 i;
  #ifdef ENABLE_IPS
  	RT_RF_POWER_STATE	rtState;
  
  	rtState = priv->eRFPowerState;
  	if (priv->PowerSaveControl.bInactivePs){
  		if(rtState == eRfOff){
  			if(priv->RfOffReason > RF_CHANGE_BY_IPS)
  			{
  				RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n",__FUNCTION__);
  				//up(&priv->wx_sem);
  				return ;
  			}
  			else{
  				down(&priv->ieee80211->ips_sem);
  				IPSLeave(priv);
  				up(&priv->ieee80211->ips_sem);
  			}
  		}
  	}
  	priv->ieee80211->is_set_key = true;
  #endif
  	if (EntryNo >= TOTAL_CAM_ENTRY)
  		RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
  
  	RT_TRACE(COMP_SEC, "====>to setKey(), priv:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", priv, EntryNo, KeyIndex, KeyType, MacAddr);
  
  	if (DefaultKey)
  		usConfig |= BIT15 | (KeyType<<2);
  	else
  		usConfig |= BIT15 | (KeyType<<2) | KeyIndex;
  //	usConfig |= BIT15 | (KeyType<<2) | (DefaultKey<<5) | KeyIndex;
  
  
  	for(i=0 ; i<CAM_CONTENT_COUNT; i++){
  		TargetCommand  = i+CAM_CONTENT_COUNT*EntryNo;
  		TargetCommand |= BIT31|BIT16;
  
  		if(i==0){//MAC|Config
  			TargetContent = (u32)(*(MacAddr+0)) << 16|
  					(u32)(*(MacAddr+1)) << 24|
  					(u32)usConfig;
  
  			write_nic_dword(priv, WCAMI, TargetContent);
  			write_nic_dword(priv, RWCAM, TargetCommand);
  		}
  		else if(i==1){//MAC
                          TargetContent = (u32)(*(MacAddr+2)) 	 |
                                          (u32)(*(MacAddr+3)) <<  8|
                                          (u32)(*(MacAddr+4)) << 16|
                                          (u32)(*(MacAddr+5)) << 24;
  			write_nic_dword(priv, WCAMI, TargetContent);
  			write_nic_dword(priv, RWCAM, TargetCommand);
  		}
  		else {	//Key Material
  			if(KeyContent != NULL)
  			{
  			write_nic_dword(priv, WCAMI, (u32)(*(KeyContent+i-2)) );
  			write_nic_dword(priv, RWCAM, TargetCommand);
  		}
  	}
  	}
  	RT_TRACE(COMP_SEC,"=========>after set key, usconfig:%x\n", usConfig);
  }
  
  bool NicIFEnableNIC(struct r8192_priv *priv)
  {
  	RT_STATUS init_status = RT_STATUS_SUCCESS;
  	PRT_POWER_SAVE_CONTROL pPSC = &priv->PowerSaveControl;
  
  	//YJ,add,091109
  	if (priv->up == 0){
  		RT_TRACE(COMP_ERR, "ERR!!! %s(): Driver is already down!\n",__FUNCTION__);
  		priv->bdisable_nic = false;  //YJ,add,091111
  		return false;
  	}
  	// <1> Reset memory: descriptor, buffer,..
  	//NicIFResetMemory(Adapter);
  
  	// <2> Enable Adapter
  	//priv->bfirst_init = true;
  	init_status = rtl8192_adapter_start(priv);
  	if (init_status != RT_STATUS_SUCCESS) {
  		RT_TRACE(COMP_ERR,"ERR!!! %s(): initialization is failed!\n",__FUNCTION__);
  		priv->bdisable_nic = false;  //YJ,add,091111
  		return -1;
  	}
  	RT_CLEAR_PS_LEVEL(pPSC, RT_RF_OFF_LEVL_HALT_NIC);
  	//priv->bfirst_init = false;
  
  	// <3> Enable Interrupt
  	rtl8192_irq_enable(priv);
  	priv->bdisable_nic = false;
  
  	return (init_status == RT_STATUS_SUCCESS);
  }
  
  bool NicIFDisableNIC(struct r8192_priv *priv)
  {
  	bool	status = true;
  	u8 tmp_state = 0;
  	// <1> Disable Interrupt
  
  	priv->bdisable_nic = true;	//YJ,move,091109
  	tmp_state = priv->ieee80211->state;
  
  	ieee80211_softmac_stop_protocol(priv->ieee80211, false);
  
  	priv->ieee80211->state = tmp_state;
  	rtl8192_cancel_deferred_work(priv);
  	rtl8192_irq_disable(priv);
  	// <2> Stop all timer
  
  	// <3> Disable Adapter
  	rtl8192_halt_adapter(priv, false);
  //	priv->bdisable_nic = true;
  
  	return status;
  }
  
  module_init(rtl8192_pci_module_init);
  module_exit(rtl8192_pci_module_exit);
  