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 "../core.h"
  34#include "reg.h"
  35#include "def.h"
  36#include "phy.h"
  37#include "dm.h"
  38#include "../rtl8192c/fw_common.h"
  39
  40void rtl92ce_dm_dynamic_txpower(struct ieee80211_hw *hw)
  41{
  42        struct rtl_priv *rtlpriv = rtl_priv(hw);
  43        struct rtl_phy *rtlphy = &(rtlpriv->phy);
  44        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  45        long undec_sm_pwdb;
  46
  47        if (!rtlpriv->dm.dynamic_txpower_enable)
  48                return;
  49
  50        if (rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
  51                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  52                return;
  53        }
  54
  55        if ((mac->link_state < MAC80211_LINKED) &&
  56            (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
  57                RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
  58                         "Not connected to any\n");
  59
  60                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  61
  62                rtlpriv->dm.last_dtp_lvl = TXHIGHPWRLEVEL_NORMAL;
  63                return;
  64        }
  65
  66        if (mac->link_state >= MAC80211_LINKED) {
  67                if (mac->opmode == NL80211_IFTYPE_ADHOC) {
  68                        undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  69                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  70                                 "AP Client PWDB = 0x%lx\n",
  71                                 undec_sm_pwdb);
  72                } else {
  73                        undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
  74                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  75                                 "STA Default Port PWDB = 0x%lx\n",
  76                                 undec_sm_pwdb);
  77                }
  78        } else {
  79                undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  80
  81                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  82                         "AP Ext Port PWDB = 0x%lx\n",
  83                         undec_sm_pwdb);
  84        }
  85
  86        if (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL2) {
  87                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  88                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  89                         "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x0)\n");
  90        } else if ((undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) &&
  91                   (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL1)) {
  92
  93                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  94                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  95                         "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)\n");
  96        } else if (undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) {
  97                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  98                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  99                         "TXHIGHPWRLEVEL_NORMAL\n");
 100        }
 101
 102        if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) {
 103                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 104                         "PHY_SetTxPowerLevel8192S() Channel = %d\n",
 105                         rtlphy->current_channel);
 106                rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel);
 107        }
 108
 109        rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
 110}
 111