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