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 undecorated_smoothed_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_undecoratedsmoothed_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			undecorated_smoothed_pwdb =
 68			    rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb;
 69			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 70				 "AP Client PWDB = 0x%lx\n",
 71				 undecorated_smoothed_pwdb);
 72		} else {
 73			undecorated_smoothed_pwdb =
 74			    rtlpriv->dm.undecorated_smoothed_pwdb;
 75			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 76				 "STA Default Port PWDB = 0x%lx\n",
 77				 undecorated_smoothed_pwdb);
 78		}
 79	} else {
 80		undecorated_smoothed_pwdb =
 81		    rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb;
 82
 83		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 84			 "AP Ext Port PWDB = 0x%lx\n",
 85			 undecorated_smoothed_pwdb);
 86	}
 87
 88	if (undecorated_smoothed_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL2) {
 89		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
 90		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 91			 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x0)\n");
 92	} else if ((undecorated_smoothed_pwdb <
 93		    (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) &&
 94		   (undecorated_smoothed_pwdb >=
 95		    TX_POWER_NEAR_FIELD_THRESH_LVL1)) {
 96
 97		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
 98		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 99			 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)\n");
100	} else if (undecorated_smoothed_pwdb <
101		   (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) {
102		rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
103		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
104			 "TXHIGHPWRLEVEL_NORMAL\n");
105	}
106
107	if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) {
108		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
109			 "PHY_SetTxPowerLevel8192S() Channel = %d\n",
110			 rtlphy->current_channel);
111		rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel);
112	}
113
114	rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
115}