drivers/net/wireless/realtek/rtlwifi/rtl8192ee/rf.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2014  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 "reg.h"
  28 #include "def.h"
  29 #include "phy.h"
  30 #include "rf.h"
  31 #include "dm.h"
  32
  33 static bool _rtl92ee_phy_rf6052_config_parafile(struct ieee80211_hw *hw);
  34
  35 void rtl92ee_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth)
  36 {
  37         struct rtl_priv *rtlpriv = rtl_priv(hw);
  38         struct rtl_phy *rtlphy = &rtlpriv->phy;
  39
  40         switch (bandwidth) {
  41         case HT_CHANNEL_WIDTH_20:
  42                 rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
  43                                              0xfffff3ff) | BIT(10) | BIT(11));
  44                 rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
  45                               rtlphy->rfreg_chnlval[0]);
  46                 rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, RFREG_OFFSET_MASK,
  47                               rtlphy->rfreg_chnlval[0]);
  48                 break;
  49         case HT_CHANNEL_WIDTH_20_40:
  50                 rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
  51                                              0xfffff3ff) | BIT(10));
  52                 rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
  53                               rtlphy->rfreg_chnlval[0]);
  54                 rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, RFREG_OFFSET_MASK,
  55                               rtlphy->rfreg_chnlval[0]);
  56                 break;
  57         default:
  58                 pr_err("unknown bandwidth: %#X\n", bandwidth);
  59                 break;
  60         }
  61 }
  62
  63 bool rtl92ee_phy_rf6052_config(struct ieee80211_hw *hw)
  64 {
  65         struct rtl_priv *rtlpriv = rtl_priv(hw);
  66         struct rtl_phy *rtlphy = &rtlpriv->phy;
  67
  68         if (rtlphy->rf_type == RF_1T1R)
  69                 rtlphy->num_total_rfpath = 1;
  70         else
  71                 rtlphy->num_total_rfpath = 2;
  72
  73         return _rtl92ee_phy_rf6052_config_parafile(hw);
  74 }
  75
  76 static bool _rtl92ee_phy_rf6052_config_parafile(struct ieee80211_hw *hw)
  77 {
  78         struct rtl_priv *rtlpriv = rtl_priv(hw);
  79         struct rtl_phy *rtlphy = &rtlpriv->phy;
  80         u32 u4_regvalue = 0;
  81         u8 rfpath;
  82         bool rtstatus = true;
  83         struct bb_reg_def *pphyreg;
  84
  85         for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
  86                 pphyreg = &rtlphy->phyreg_def[rfpath];
  87
  88                 switch (rfpath) {
  89                 case RF90_PATH_A:
  90                 case RF90_PATH_C:
  91                         u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
  92                                                     BRFSI_RFENV);
  93                         break;
  94                 case RF90_PATH_B:
  95                 case RF90_PATH_D:
  96                         u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
  97                                                     BRFSI_RFENV << 16);
  98                         break;
  99                 }
 100
 101                 rtl_set_bbreg(hw, pphyreg->rfintfe, BRFSI_RFENV << 16, 0x1);
 102                 udelay(1);
 103
 104                 rtl_set_bbreg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
 105                 udelay(1);
 106
 107                 rtl_set_bbreg(hw, pphyreg->rfhssi_para2,
 108                               B3WIREADDREAALENGTH, 0x0);
 109                 udelay(1);
 110
 111                 rtl_set_bbreg(hw, pphyreg->rfhssi_para2, B3WIREDATALENGTH, 0x0);
 112                 udelay(1);
 113
 114                 switch (rfpath) {
 115                 case RF90_PATH_A:
 116                         rtstatus = rtl92ee_phy_config_rf_with_headerfile(hw,
 117                                                        (enum radio_path)rfpath);
 118                         break;
 119                 case RF90_PATH_B:
 120                         rtstatus = rtl92ee_phy_config_rf_with_headerfile(hw,
 121                                                        (enum radio_path)rfpath);
 122                         break;
 123                 case RF90_PATH_C:
 124                         break;
 125                 case RF90_PATH_D:
 126                         break;
 127                 }
 128
 129                 switch (rfpath) {
 130                 case RF90_PATH_A:
 131                 case RF90_PATH_C:
 132                         rtl_set_bbreg(hw, pphyreg->rfintfs,
 133                                       BRFSI_RFENV, u4_regvalue);
 134                         break;
 135                 case RF90_PATH_B:
 136                 case RF90_PATH_D:
 137                         rtl_set_bbreg(hw, pphyreg->rfintfs,
 138                                       BRFSI_RFENV << 16, u4_regvalue);
 139                         break;
 140                 }
 141
 142                 if (!rtstatus) {
 143                         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 144                                  "Radio[%d] Fail!!\n", rfpath);
 145                         return false;
 146                 }
 147         }
 148
 149         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "\n");
 150         return rtstatus;
 151 }