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 "reg.h" 33#include "def.h" 34#include "phy.h" 35#include "dm.h" 36 37void rtl92cu_dm_dynamic_txpower(struct ieee80211_hw *hw) 38{ 39 struct rtl_priv *rtlpriv = rtl_priv(hw); 40 struct rtl_phy *rtlphy = &(rtlpriv->phy); 41 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 42 long undecorated_smoothed_pwdb; 43 44 if (!rtlpriv->dm.dynamic_txpower_enable) 45 return; 46 47 if (rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) { 48 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL; 49 return; 50 } 51 52 if ((mac->link_state < MAC80211_LINKED) && 53 (rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb == 0)) { 54 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, 55 "Not connected to any\n"); 56 57 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL; 58 59 rtlpriv->dm.last_dtp_lvl = TXHIGHPWRLEVEL_NORMAL; 60 return; 61 } 62 63 if (mac->link_state >= MAC80211_LINKED) { 64 if (mac->opmode == NL80211_IFTYPE_ADHOC) { 65 undecorated_smoothed_pwdb = 66 rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb; 67 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, 68 "AP Client PWDB = 0x%lx\n", 69 undecorated_smoothed_pwdb); 70 } else { 71 undecorated_smoothed_pwdb = 72 rtlpriv->dm.undecorated_smoothed_pwdb; 73 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, 74 "STA Default Port PWDB = 0x%lx\n", 75 undecorated_smoothed_pwdb); 76 } 77 } else { 78 undecorated_smoothed_pwdb = 79 rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb; 80 81 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, 82 "AP Ext Port PWDB = 0x%lx\n", 83 undecorated_smoothed_pwdb); 84 } 85 86 if (undecorated_smoothed_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 ((undecorated_smoothed_pwdb < 91 (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) && 92 (undecorated_smoothed_pwdb >= 93 TX_POWER_NEAR_FIELD_THRESH_LVL1)) { 94 95 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1; 96 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, 97 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)\n"); 98 } else if (undecorated_smoothed_pwdb < 99 (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) { 100 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL; 101 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, 102 "TXHIGHPWRLEVEL_NORMAL\n"); 103 } 104 105 if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) { 106 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, 107 "PHY_SetTxPowerLevel8192S() Channel = %d\n", 108 rtlphy->current_channel); 109 rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel); 110 } 111 112 rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl; 113} 114