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