1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2010 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
rtl92ce_dm_dynamic_txpower(struct ieee80211_hw * hw)39 void 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 }
116