LXR linux/drivers/net/wireless/rtlwifi/rtl8192ce/dm.c

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2012  Realtek Corporation.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms of version 2 of the GNU General Public License as
   7 * published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 * more details.
  13 *
  14 * You should have received a copy of the GNU General Public License along with
  15 * this program; if not, write to the Free Software Foundation, Inc.,
  16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17 *
  18 * The full GNU General Public License is included in this distribution in the
  19 * file called LICENSE.
  20 *
  21 * Contact Information:
  22 * wlanfae <wlanfae@realtek.com>
  23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24 * Hsinchu 300, Taiwan.
  25 *
  26 * Larry Finger <Larry.Finger@lwfinger.net>
  27 *
  28 *****************************************************************************/
  29
  30#include "../wifi.h"
  31#include "../base.h"
  32#include "../pci.h"
  33#include "reg.h"
  34#include "def.h"
  35#include "phy.h"
  36#include "dm.h"
  37#include "../rtl8192c/fw_common.h"
  38
  39void rtl92ce_dm_dynamic_txpower(struct ieee80211_hw *hw)
  40{
  41        struct rtl_priv *rtlpriv = rtl_priv(hw);
  42        struct rtl_phy *rtlphy = &(rtlpriv->phy);
  43        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  44        long undec_sm_pwdb;
  45
  46        if (!rtlpriv->dm.dynamic_txpower_enable)
  47                return;
  48
  49        if (rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
  50                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  51                return;
  52        }
  53
  54        if ((mac->link_state < MAC80211_LINKED) &&
  55            (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
  56                RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
  57                         "Not connected to any\n");
  58
  59                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  60
  61                rtlpriv->dm.last_dtp_lvl = TXHIGHPWRLEVEL_NORMAL;
  62                return;
  63        }
  64
  65        if (mac->link_state >= MAC80211_LINKED) {
  66                if (mac->opmode == NL80211_IFTYPE_ADHOC) {
  67                        undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  68                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  69                                 "AP Client PWDB = 0x%lx\n",
  70                                 undec_sm_pwdb);
  71                } else {
  72                        undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
  73                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  74                                 "STA Default Port PWDB = 0x%lx\n",
  75                                 undec_sm_pwdb);
  76                }
  77        } else {
  78                undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  79
  80                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  81                         "AP Ext Port PWDB = 0x%lx\n",
  82                         undec_sm_pwdb);
  83        }
  84
  85        if (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL2) {
  86                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  87                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  88                         "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x0)\n");
  89        } else if ((undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) &&
  90                   (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL1)) {
  91
  92                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  93                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  94                         "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)\n");
  95        } else if (undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) {
  96                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  97                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  98                         "TXHIGHPWRLEVEL_NORMAL\n");
  99        }
 100
 101        if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) {
 102                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 103                         "PHY_SetTxPowerLevel8192S() Channel = %d\n",
 104                         rtlphy->current_channel);
 105                rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel);
 106        }
 107
 108        rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
 109}
 110