drivers/net/wireless/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                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  59                          "unknown bandwidth: %#X\n", bandwidth);
  60                 break;
  61         }
  62 }
  63
  64 bool rtl92ee_phy_rf6052_config(struct ieee80211_hw *hw)
  65 {
  66         struct rtl_priv *rtlpriv = rtl_priv(hw);
  67         struct rtl_phy *rtlphy = &rtlpriv->phy;
  68
  69         if (rtlphy->rf_type == RF_1T1R)
  70                 rtlphy->num_total_rfpath = 1;
  71         else
  72                 rtlphy->num_total_rfpath = 2;
  73
  74         return _rtl92ee_phy_rf6052_config_parafile(hw);
  75 }
  76
  77 static bool _rtl92ee_phy_rf6052_config_parafile(struct ieee80211_hw *hw)
  78 {
  79         struct rtl_priv *rtlpriv = rtl_priv(hw);
  80         struct rtl_phy *rtlphy = &rtlpriv->phy;
  81         u32 u4_regvalue = 0;
  82         u8 rfpath;
  83         bool rtstatus = true;
  84         struct bb_reg_def *pphyreg;
  85
  86         for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
  87                 pphyreg = &rtlphy->phyreg_def[rfpath];
  88
  89                 switch (rfpath) {
  90                 case RF90_PATH_A:
  91                 case RF90_PATH_C:
  92                         u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
  93                                                     BRFSI_RFENV);
  94                         break;
  95                 case RF90_PATH_B:
  96                 case RF90_PATH_D:
  97                         u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
  98                                                     BRFSI_RFENV << 16);
  99                         break;
 100                 }
 101
 102                 rtl_set_bbreg(hw, pphyreg->rfintfe, BRFSI_RFENV << 16, 0x1);
 103                 udelay(1);
 104
 105                 rtl_set_bbreg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
 106                 udelay(1);
 107
 108                 rtl_set_bbreg(hw, pphyreg->rfhssi_para2,
 109                               B3WIREADDREAALENGTH, 0x0);
 110                 udelay(1);
 111
 112                 rtl_set_bbreg(hw, pphyreg->rfhssi_para2, B3WIREDATALENGTH, 0x0);
 113                 udelay(1);
 114
 115                 switch (rfpath) {
 116                 case RF90_PATH_A:
 117                         rtstatus = rtl92ee_phy_config_rf_with_headerfile(hw,
 118                                                        (enum radio_path)rfpath);
 119                         break;
 120                 case RF90_PATH_B:
 121                         rtstatus = rtl92ee_phy_config_rf_with_headerfile(hw,
 122                                                        (enum radio_path)rfpath);
 123                         break;
 124                 case RF90_PATH_C:
 125                         break;
 126                 case RF90_PATH_D:
 127                         break;
 128                 }
 129
 130                 switch (rfpath) {
 131                 case RF90_PATH_A:
 132                 case RF90_PATH_C:
 133                         rtl_set_bbreg(hw, pphyreg->rfintfs,
 134                                       BRFSI_RFENV, u4_regvalue);
 135                         break;
 136                 case RF90_PATH_B:
 137                 case RF90_PATH_D:
 138                         rtl_set_bbreg(hw, pphyreg->rfintfs,
 139                                       BRFSI_RFENV << 16, u4_regvalue);
 140                         break;
 141                 }
 142
 143                 if (!rtstatus) {
 144                         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 145                                  "Radio[%d] Fail!!", rfpath);
 146                         return false;
 147                 }
 148         }
 149
 150         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "\n");
 151         return rtstatus;
 152 }