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kernel/linux-rt-4.4.41/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/dm.c 3.81 KB
5113f6f70   김현기   kernel add
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  /******************************************************************************
   *
   * Copyright(c) 2009-2012  Realtek Corporation.
   *
   * 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:
   * wlanfae <wlanfae@realtek.com>
   * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
   * Hsinchu 300, Taiwan.
   *
   * Larry Finger <Larry.Finger@lwfinger.net>
   *
   *****************************************************************************/
  
  #include "../wifi.h"
  #include "../base.h"
  #include "reg.h"
  #include "def.h"
  #include "phy.h"
  #include "dm.h"
  
  void rtl92cu_dm_dynamic_txpower(struct ieee80211_hw *hw)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	struct rtl_phy *rtlphy = &(rtlpriv->phy);
  	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  	long undec_sm_pwdb;
  
  	if (!rtlpriv->dm.dynamic_txpower_enable)
  		return;
  
  	if (rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
  		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  		return;
  	}
  
  	if ((mac->link_state < MAC80211_LINKED) &&
  	    (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
  		RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
  			 "Not connected to any
  ");
  
  		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  
  		rtlpriv->dm.last_dtp_lvl = TXHIGHPWRLEVEL_NORMAL;
  		return;
  	}
  
  	if (mac->link_state >= MAC80211_LINKED) {
  		if (mac->opmode == NL80211_IFTYPE_ADHOC) {
  			undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  				 "AP Client PWDB = 0x%lx
  ",
  				 undec_sm_pwdb);
  		} else {
  			undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
  			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  				 "STA Default Port PWDB = 0x%lx
  ",
  				 undec_sm_pwdb);
  		}
  	} else {
  		undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  
  		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  			 "AP Ext Port PWDB = 0x%lx
  ",
  			 undec_sm_pwdb);
  	}
  
  	if (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL2) {
  		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  			 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x0)
  ");
  	} else if ((undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) &&
  		   (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL1)) {
  
  		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  			 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)
  ");
  	} else if (undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) {
  		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  			 "TXHIGHPWRLEVEL_NORMAL
  ");
  	}
  
  	if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) {
  		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  			 "PHY_SetTxPowerLevel8192S() Channel = %d
  ",
  			 rtlphy->current_channel);
  		rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel);
  		if (rtlpriv->dm.dynamic_txhighpower_lvl ==
  		    TXHIGHPWRLEVEL_NORMAL)
  			dm_restorepowerindex(hw);
  		else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
  			 TXHIGHPWRLEVEL_LEVEL1)
  			dm_writepowerindex(hw, 0x14);
  		else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
  			 TXHIGHPWRLEVEL_LEVEL2)
  			dm_writepowerindex(hw, 0x10);
  	}
  
  	rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
  }