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 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #include "../wifi.h"
27 #include "../base.h"
28 #include "../pci.h"
29 #include "../core.h"
30 #include "reg.h"
31 #include "def.h"
32 #include "phy.h"
33 #include "dm.h"
34 #include "../rtl8192c/fw_common.h"
35
rtl92ce_dm_dynamic_txpower(struct ieee80211_hw * hw)36 void rtl92ce_dm_dynamic_txpower(struct ieee80211_hw *hw)
37 {
38 struct rtl_priv *rtlpriv = rtl_priv(hw);
39 struct rtl_phy *rtlphy = &(rtlpriv->phy);
40 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
41 long undec_sm_pwdb;
42
43 if (!rtlpriv->dm.dynamic_txpower_enable)
44 return;
45
46 if (rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
47 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
48 return;
49 }
50
51 if ((mac->link_state < MAC80211_LINKED) &&
52 (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
53 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
54 "Not connected to any\n");
55
56 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
57
58 rtlpriv->dm.last_dtp_lvl = TXHIGHPWRLEVEL_NORMAL;
59 return;
60 }
61
62 if (mac->link_state >= MAC80211_LINKED) {
63 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
64 undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
65 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
66 "AP Client PWDB = 0x%lx\n",
67 undec_sm_pwdb);
68 } else {
69 undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
70 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
71 "STA Default Port PWDB = 0x%lx\n",
72 undec_sm_pwdb);
73 }
74 } else {
75 undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
76
77 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
78 "AP Ext Port PWDB = 0x%lx\n",
79 undec_sm_pwdb);
80 }
81
82 if (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL2) {
83 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
84 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
85 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x0)\n");
86 } else if ((undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) &&
87 (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL1)) {
88
89 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
90 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
91 "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)\n");
92 } else if (undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) {
93 rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
94 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
95 "TXHIGHPWRLEVEL_NORMAL\n");
96 }
97
98 if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) {
99 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
100 "PHY_SetTxPowerLevel8192S() Channel = %d\n",
101 rtlphy->current_channel);
102 rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel);
103 }
104
105 rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
106 }
107
