linux/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/dm.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright(c) 2009-2012  Realtek Corporation.*/
   3
   4#include "../wifi.h"
   5#include "../base.h"
   6#include "../pci.h"
   7#include "../core.h"
   8#include "reg.h"
   9#include "def.h"
  10#include "phy.h"
  11#include "dm.h"
  12#include "../rtl8192c/fw_common.h"
  13
  14void rtl92ce_dm_dynamic_txpower(struct ieee80211_hw *hw)
  15{
  16        struct rtl_priv *rtlpriv = rtl_priv(hw);
  17        struct rtl_phy *rtlphy = &(rtlpriv->phy);
  18        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  19        long undec_sm_pwdb;
  20
  21        if (!rtlpriv->dm.dynamic_txpower_enable)
  22                return;
  23
  24        if (rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
  25                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  26                return;
  27        }
  28
  29        if ((mac->link_state < MAC80211_LINKED) &&
  30            (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
  31                RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
  32                         "Not connected to any\n");
  33
  34                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  35
  36                rtlpriv->dm.last_dtp_lvl = TXHIGHPWRLEVEL_NORMAL;
  37                return;
  38        }
  39
  40        if (mac->link_state >= MAC80211_LINKED) {
  41                if (mac->opmode == NL80211_IFTYPE_ADHOC) {
  42                        undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  43                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  44                                 "AP Client PWDB = 0x%lx\n",
  45                                 undec_sm_pwdb);
  46                } else {
  47                        undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
  48                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  49                                 "STA Default Port PWDB = 0x%lx\n",
  50                                 undec_sm_pwdb);
  51                }
  52        } else {
  53                undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
  54
  55                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  56                         "AP Ext Port PWDB = 0x%lx\n",
  57                         undec_sm_pwdb);
  58        }
  59
  60        if (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL2) {
  61                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  62                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  63                         "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x0)\n");
  64        } else if ((undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL2 - 3)) &&
  65                   (undec_sm_pwdb >= TX_POWER_NEAR_FIELD_THRESH_LVL1)) {
  66
  67                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_LEVEL1;
  68                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  69                         "TXHIGHPWRLEVEL_LEVEL1 (TxPwr=0x10)\n");
  70        } else if (undec_sm_pwdb < (TX_POWER_NEAR_FIELD_THRESH_LVL1 - 5)) {
  71                rtlpriv->dm.dynamic_txhighpower_lvl = TXHIGHPWRLEVEL_NORMAL;
  72                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  73                         "TXHIGHPWRLEVEL_NORMAL\n");
  74        }
  75
  76        if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl)) {
  77                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
  78                         "PHY_SetTxPowerLevel8192S() Channel = %d\n",
  79                         rtlphy->current_channel);
  80                rtl92c_phy_set_txpower_level(hw, rtlphy->current_channel);
  81        }
  82
  83        rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
  84}
  85