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kernel/linux-rt-4.4.41/drivers/net/wireless/realtek/rtlwifi/rtl8723com/phy_common.c 14.3 KB
5113f6f70   김현기   kernel add
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  /******************************************************************************
   *
   * Copyright(c) 2009-2014  Realtek Corporation.
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of version 2 of the GNU General Public License as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * The full GNU General Public License is included in this distribution in the
   * file called LICENSE.
   *
   * Contact Information:
   * wlanfae <wlanfae@realtek.com>
   * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
   * Hsinchu 300, Taiwan.
   *
   * Larry Finger <Larry.Finger@lwfinger.net>
   *
   *****************************************************************************/
  
  #include "../wifi.h"
  #include "phy_common.h"
  #include "../rtl8723ae/reg.h"
  #include <linux/module.h>
  
  /* These routines are common to RTL8723AE and RTL8723bE */
  
  u32 rtl8723_phy_query_bb_reg(struct ieee80211_hw *hw,
  			     u32 regaddr, u32 bitmask)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	u32 returnvalue, originalvalue, bitshift;
  
  	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
  		 "regaddr(%#x), bitmask(%#x)
  ", regaddr, bitmask);
  	originalvalue = rtl_read_dword(rtlpriv, regaddr);
  	bitshift = rtl8723_phy_calculate_bit_shift(bitmask);
  	returnvalue = (originalvalue & bitmask) >> bitshift;
  
  	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
  		 "BBR MASK=0x%x Addr[0x%x]=0x%x
  ", bitmask,
  		 regaddr, originalvalue);
  	return returnvalue;
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_query_bb_reg);
  
  void rtl8723_phy_set_bb_reg(struct ieee80211_hw *hw, u32 regaddr,
  			      u32 bitmask, u32 data)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	u32 originalvalue, bitshift;
  
  	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
  		 "regaddr(%#x), bitmask(%#x), data(%#x)
  ", regaddr, bitmask,
  		 data);
  
  	if (bitmask != MASKDWORD) {
  		originalvalue = rtl_read_dword(rtlpriv, regaddr);
  		bitshift = rtl8723_phy_calculate_bit_shift(bitmask);
  		data = ((originalvalue & (~bitmask)) | (data << bitshift));
  	}
  
  	rtl_write_dword(rtlpriv, regaddr, data);
  
  	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
  		 "regaddr(%#x), bitmask(%#x), data(%#x)
  ",
  		 regaddr, bitmask, data);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_set_bb_reg);
  
  u32 rtl8723_phy_calculate_bit_shift(u32 bitmask)
  {
  	u32 i;
  
  	for (i = 0; i <= 31; i++) {
  		if (((bitmask >> i) & 0x1) == 1)
  			break;
  	}
  	return i;
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_calculate_bit_shift);
  
  u32 rtl8723_phy_rf_serial_read(struct ieee80211_hw *hw,
  			       enum radio_path rfpath, u32 offset)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	struct rtl_phy *rtlphy = &(rtlpriv->phy);
  	struct bb_reg_def *pphyreg = &rtlphy->phyreg_def[rfpath];
  	u32 newoffset;
  	u32 tmplong, tmplong2;
  	u8 rfpi_enable = 0;
  	u32 retvalue;
  
  	offset &= 0xff;
  	newoffset = offset;
  	if (RT_CANNOT_IO(hw)) {
  		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "return all one
  ");
  		return 0xFFFFFFFF;
  	}
  	tmplong = rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2, MASKDWORD);
  	if (rfpath == RF90_PATH_A)
  		tmplong2 = tmplong;
  	else
  		tmplong2 = rtl_get_bbreg(hw, pphyreg->rfhssi_para2, MASKDWORD);
  	tmplong2 = (tmplong2 & (~BLSSIREADADDRESS)) |
  	    (newoffset << 23) | BLSSIREADEDGE;
  	rtl_set_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2, MASKDWORD,
  		      tmplong & (~BLSSIREADEDGE));
  	mdelay(1);
  	rtl_set_bbreg(hw, pphyreg->rfhssi_para2, MASKDWORD, tmplong2);
  	mdelay(1);
  	rtl_set_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2, MASKDWORD,
  		      tmplong | BLSSIREADEDGE);
  	mdelay(1);
  	if (rfpath == RF90_PATH_A)
  		rfpi_enable = (u8) rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER1,
  						 BIT(8));
  	else if (rfpath == RF90_PATH_B)
  		rfpi_enable = (u8) rtl_get_bbreg(hw, RFPGA0_XB_HSSIPARAMETER1,
  						 BIT(8));
  	if (rfpi_enable)
  		retvalue = rtl_get_bbreg(hw, pphyreg->rf_rbpi,
  					 BLSSIREADBACKDATA);
  	else
  		retvalue = rtl_get_bbreg(hw, pphyreg->rf_rb,
  					 BLSSIREADBACKDATA);
  	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
  		 "RFR-%d Addr[0x%x]=0x%x
  ",
  		 rfpath, pphyreg->rf_rb, retvalue);
  	return retvalue;
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_rf_serial_read);
  
  void rtl8723_phy_rf_serial_write(struct ieee80211_hw *hw,
  				 enum radio_path rfpath,
  				 u32 offset, u32 data)
  {
  	u32 data_and_addr;
  	u32 newoffset;
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	struct rtl_phy *rtlphy = &(rtlpriv->phy);
  	struct bb_reg_def *pphyreg = &rtlphy->phyreg_def[rfpath];
  
  	if (RT_CANNOT_IO(hw)) {
  		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "stop
  ");
  		return;
  	}
  	offset &= 0xff;
  	newoffset = offset;
  	data_and_addr = ((newoffset << 20) | (data & 0x000fffff)) & 0x0fffffff;
  	rtl_set_bbreg(hw, pphyreg->rf3wire_offset, MASKDWORD, data_and_addr);
  	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
  		 "RFW-%d Addr[0x%x]=0x%x
  ",
  		 rfpath, pphyreg->rf3wire_offset,
  		 data_and_addr);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_rf_serial_write);
  
  long rtl8723_phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
  				  enum wireless_mode wirelessmode,
  				  u8 txpwridx)
  {
  	long offset;
  	long pwrout_dbm;
  
  	switch (wirelessmode) {
  	case WIRELESS_MODE_B:
  		offset = -7;
  		break;
  	case WIRELESS_MODE_G:
  	case WIRELESS_MODE_N_24G:
  		offset = -8;
  		break;
  	default:
  		offset = -8;
  		break;
  	}
  	pwrout_dbm = txpwridx / 2 + offset;
  	return pwrout_dbm;
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_txpwr_idx_to_dbm);
  
  void rtl8723_phy_init_bb_rf_reg_def(struct ieee80211_hw *hw)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	struct rtl_phy *rtlphy = &(rtlpriv->phy);
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfintfs = RFPGA0_XAB_RFINTERFACESW;
  	rtlphy->phyreg_def[RF90_PATH_B].rfintfs = RFPGA0_XAB_RFINTERFACESW;
  	rtlphy->phyreg_def[RF90_PATH_C].rfintfs = RFPGA0_XCD_RFINTERFACESW;
  	rtlphy->phyreg_def[RF90_PATH_D].rfintfs = RFPGA0_XCD_RFINTERFACESW;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfintfi = RFPGA0_XAB_RFINTERFACERB;
  	rtlphy->phyreg_def[RF90_PATH_B].rfintfi = RFPGA0_XAB_RFINTERFACERB;
  	rtlphy->phyreg_def[RF90_PATH_C].rfintfi = RFPGA0_XCD_RFINTERFACERB;
  	rtlphy->phyreg_def[RF90_PATH_D].rfintfi = RFPGA0_XCD_RFINTERFACERB;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfintfo = RFPGA0_XA_RFINTERFACEOE;
  	rtlphy->phyreg_def[RF90_PATH_B].rfintfo = RFPGA0_XB_RFINTERFACEOE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfintfe = RFPGA0_XA_RFINTERFACEOE;
  	rtlphy->phyreg_def[RF90_PATH_B].rfintfe = RFPGA0_XB_RFINTERFACEOE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rf3wire_offset =
  	    RFPGA0_XA_LSSIPARAMETER;
  	rtlphy->phyreg_def[RF90_PATH_B].rf3wire_offset =
  	    RFPGA0_XB_LSSIPARAMETER;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rflssi_select = RFPGA0_XAB_RFPARAMETER;
  	rtlphy->phyreg_def[RF90_PATH_B].rflssi_select = RFPGA0_XAB_RFPARAMETER;
  	rtlphy->phyreg_def[RF90_PATH_C].rflssi_select = RFPGA0_XCD_RFPARAMETER;
  	rtlphy->phyreg_def[RF90_PATH_D].rflssi_select = RFPGA0_XCD_RFPARAMETER;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rftxgain_stage = RFPGA0_TXGAINSTAGE;
  	rtlphy->phyreg_def[RF90_PATH_B].rftxgain_stage = RFPGA0_TXGAINSTAGE;
  	rtlphy->phyreg_def[RF90_PATH_C].rftxgain_stage = RFPGA0_TXGAINSTAGE;
  	rtlphy->phyreg_def[RF90_PATH_D].rftxgain_stage = RFPGA0_TXGAINSTAGE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfhssi_para1 = RFPGA0_XA_HSSIPARAMETER1;
  	rtlphy->phyreg_def[RF90_PATH_B].rfhssi_para1 = RFPGA0_XB_HSSIPARAMETER1;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfhssi_para2 = RFPGA0_XA_HSSIPARAMETER2;
  	rtlphy->phyreg_def[RF90_PATH_B].rfhssi_para2 = RFPGA0_XB_HSSIPARAMETER2;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfsw_ctrl = RFPGA0_XAB_SWITCHCONTROL;
  	rtlphy->phyreg_def[RF90_PATH_B].rfsw_ctrl = RFPGA0_XAB_SWITCHCONTROL;
  	rtlphy->phyreg_def[RF90_PATH_C].rfsw_ctrl = RFPGA0_XCD_SWITCHCONTROL;
  	rtlphy->phyreg_def[RF90_PATH_D].rfsw_ctrl = RFPGA0_XCD_SWITCHCONTROL;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfagc_control1 = ROFDM0_XAAGCCORE1;
  	rtlphy->phyreg_def[RF90_PATH_B].rfagc_control1 = ROFDM0_XBAGCCORE1;
  	rtlphy->phyreg_def[RF90_PATH_C].rfagc_control1 = ROFDM0_XCAGCCORE1;
  	rtlphy->phyreg_def[RF90_PATH_D].rfagc_control1 = ROFDM0_XDAGCCORE1;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfagc_control2 = ROFDM0_XAAGCCORE2;
  	rtlphy->phyreg_def[RF90_PATH_B].rfagc_control2 = ROFDM0_XBAGCCORE2;
  	rtlphy->phyreg_def[RF90_PATH_C].rfagc_control2 = ROFDM0_XCAGCCORE2;
  	rtlphy->phyreg_def[RF90_PATH_D].rfagc_control2 = ROFDM0_XDAGCCORE2;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfrxiq_imbal = ROFDM0_XARXIQIMBALANCE;
  	rtlphy->phyreg_def[RF90_PATH_B].rfrxiq_imbal = ROFDM0_XBRXIQIMBALANCE;
  	rtlphy->phyreg_def[RF90_PATH_C].rfrxiq_imbal = ROFDM0_XCRXIQIMBANLANCE;
  	rtlphy->phyreg_def[RF90_PATH_D].rfrxiq_imbal = ROFDM0_XDRXIQIMBALANCE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rfrx_afe = ROFDM0_XARXAFE;
  	rtlphy->phyreg_def[RF90_PATH_B].rfrx_afe = ROFDM0_XBRXAFE;
  	rtlphy->phyreg_def[RF90_PATH_C].rfrx_afe = ROFDM0_XCRXAFE;
  	rtlphy->phyreg_def[RF90_PATH_D].rfrx_afe = ROFDM0_XDRXAFE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rftxiq_imbal = ROFDM0_XATXIQIMBALANCE;
  	rtlphy->phyreg_def[RF90_PATH_B].rftxiq_imbal = ROFDM0_XBTXIQIMBALANCE;
  	rtlphy->phyreg_def[RF90_PATH_C].rftxiq_imbal = ROFDM0_XCTXIQIMBALANCE;
  	rtlphy->phyreg_def[RF90_PATH_D].rftxiq_imbal = ROFDM0_XDTXIQIMBALANCE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rftx_afe = ROFDM0_XATXAFE;
  	rtlphy->phyreg_def[RF90_PATH_B].rftx_afe = ROFDM0_XBTXAFE;
  	rtlphy->phyreg_def[RF90_PATH_C].rftx_afe = ROFDM0_XCTXAFE;
  	rtlphy->phyreg_def[RF90_PATH_D].rftx_afe = ROFDM0_XDTXAFE;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rf_rb = RFPGA0_XA_LSSIREADBACK;
  	rtlphy->phyreg_def[RF90_PATH_B].rf_rb = RFPGA0_XB_LSSIREADBACK;
  	rtlphy->phyreg_def[RF90_PATH_C].rf_rb = RFPGA0_XC_LSSIREADBACK;
  	rtlphy->phyreg_def[RF90_PATH_D].rf_rb = RFPGA0_XD_LSSIREADBACK;
  
  	rtlphy->phyreg_def[RF90_PATH_A].rf_rbpi = TRANSCEIVEA_HSPI_READBACK;
  	rtlphy->phyreg_def[RF90_PATH_B].rf_rbpi = TRANSCEIVEB_HSPI_READBACK;
  
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_init_bb_rf_reg_def);
  
  bool rtl8723_phy_set_sw_chnl_cmdarray(struct swchnlcmd *cmdtable,
  				      u32 cmdtableidx,
  				      u32 cmdtablesz,
  				      enum swchnlcmd_id cmdid,
  				      u32 para1, u32 para2,
  				      u32 msdelay)
  {
  	struct swchnlcmd *pcmd;
  
  	if (cmdtable == NULL) {
  		RT_ASSERT(false, "cmdtable cannot be NULL.
  ");
  		return false;
  	}
  
  	if (cmdtableidx >= cmdtablesz)
  		return false;
  
  	pcmd = cmdtable + cmdtableidx;
  	pcmd->cmdid = cmdid;
  	pcmd->para1 = para1;
  	pcmd->para2 = para2;
  	pcmd->msdelay = msdelay;
  	return true;
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_set_sw_chnl_cmdarray);
  
  void rtl8723_phy_path_a_fill_iqk_matrix(struct ieee80211_hw *hw,
  					bool iqk_ok,
  					long result[][8],
  					u8 final_candidate,
  					bool btxonly)
  {
  	u32 oldval_0, x, tx0_a, reg;
  	long y, tx0_c;
  
  	if (final_candidate == 0xFF) {
  		return;
  	} else if (iqk_ok) {
  		oldval_0 = (rtl_get_bbreg(hw, ROFDM0_XATXIQIMBALANCE,
  					  MASKDWORD) >> 22) & 0x3FF;
  		x = result[final_candidate][0];
  		if ((x & 0x00000200) != 0)
  			x = x | 0xFFFFFC00;
  		tx0_a = (x * oldval_0) >> 8;
  		rtl_set_bbreg(hw, ROFDM0_XATXIQIMBALANCE, 0x3FF, tx0_a);
  		rtl_set_bbreg(hw, ROFDM0_ECCATHRESHOLD, BIT(31),
  			      ((x * oldval_0 >> 7) & 0x1));
  		y = result[final_candidate][1];
  		if ((y & 0x00000200) != 0)
  			y = y | 0xFFFFFC00;
  		tx0_c = (y * oldval_0) >> 8;
  		rtl_set_bbreg(hw, ROFDM0_XCTXAFE, 0xF0000000,
  			      ((tx0_c & 0x3C0) >> 6));
  		rtl_set_bbreg(hw, ROFDM0_XATXIQIMBALANCE, 0x003F0000,
  			      (tx0_c & 0x3F));
  		rtl_set_bbreg(hw, ROFDM0_ECCATHRESHOLD, BIT(29),
  			      ((y * oldval_0 >> 7) & 0x1));
  		if (btxonly)
  			return;
  		reg = result[final_candidate][2];
  		rtl_set_bbreg(hw, ROFDM0_XARXIQIMBALANCE, 0x3FF, reg);
  		reg = result[final_candidate][3] & 0x3F;
  		rtl_set_bbreg(hw, ROFDM0_XARXIQIMBALANCE, 0xFC00, reg);
  		reg = (result[final_candidate][3] >> 6) & 0xF;
  		rtl_set_bbreg(hw, 0xca0, 0xF0000000, reg);
  	}
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_path_a_fill_iqk_matrix);
  
  void rtl8723_save_adda_registers(struct ieee80211_hw *hw, u32 *addareg,
  				 u32 *addabackup, u32 registernum)
  {
  	u32 i;
  
  	for (i = 0; i < registernum; i++)
  		addabackup[i] = rtl_get_bbreg(hw, addareg[i], MASKDWORD);
  }
  EXPORT_SYMBOL_GPL(rtl8723_save_adda_registers);
  
  void rtl8723_phy_save_mac_registers(struct ieee80211_hw *hw,
  				    u32 *macreg, u32 *macbackup)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	u32 i;
  
  	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++)
  		macbackup[i] = rtl_read_byte(rtlpriv, macreg[i]);
  	macbackup[i] = rtl_read_dword(rtlpriv, macreg[i]);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_save_mac_registers);
  
  void rtl8723_phy_reload_adda_registers(struct ieee80211_hw *hw,
  				       u32 *addareg, u32 *addabackup,
  				       u32 regiesternum)
  {
  	u32 i;
  
  	for (i = 0; i < regiesternum; i++)
  		rtl_set_bbreg(hw, addareg[i], MASKDWORD, addabackup[i]);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_reload_adda_registers);
  
  void rtl8723_phy_reload_mac_registers(struct ieee80211_hw *hw,
  				      u32 *macreg, u32 *macbackup)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	u32 i;
  
  	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++)
  		rtl_write_byte(rtlpriv, macreg[i], (u8) macbackup[i]);
  	rtl_write_dword(rtlpriv, macreg[i], macbackup[i]);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_reload_mac_registers);
  
  void rtl8723_phy_path_adda_on(struct ieee80211_hw *hw, u32 *addareg,
  			      bool is_patha_on, bool is2t)
  {
  	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  	u32 pathon;
  	u32 i;
  
  	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8723AE) {
  		pathon = is_patha_on ? 0x04db25a4 : 0x0b1b25a4;
  		if (!is2t) {
  			pathon = 0x0bdb25a0;
  			rtl_set_bbreg(hw, addareg[0], MASKDWORD, 0x0b1b25a0);
  		} else {
  			rtl_set_bbreg(hw, addareg[0], MASKDWORD, pathon);
  		}
  	} else {
  		/* rtl8723be */
  		pathon = 0x01c00014;
  		rtl_set_bbreg(hw, addareg[0], MASKDWORD, pathon);
  	}
  
  	for (i = 1; i < IQK_ADDA_REG_NUM; i++)
  		rtl_set_bbreg(hw, addareg[i], MASKDWORD, pathon);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_path_adda_on);
  
  void rtl8723_phy_mac_setting_calibration(struct ieee80211_hw *hw,
  					 u32 *macreg, u32 *macbackup)
  {
  	struct rtl_priv *rtlpriv = rtl_priv(hw);
  	u32 i = 0;
  
  	rtl_write_byte(rtlpriv, macreg[i], 0x3F);
  
  	for (i = 1; i < (IQK_MAC_REG_NUM - 1); i++)
  		rtl_write_byte(rtlpriv, macreg[i],
  			       (u8) (macbackup[i] & (~BIT(3))));
  	rtl_write_byte(rtlpriv, macreg[i], (u8) (macbackup[i] & (~BIT(5))));
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_mac_setting_calibration);
  
  void rtl8723_phy_path_a_standby(struct ieee80211_hw *hw)
  {
  	rtl_set_bbreg(hw, 0xe28, MASKDWORD, 0x0);
  	rtl_set_bbreg(hw, 0x840, MASKDWORD, 0x00010000);
  	rtl_set_bbreg(hw, 0xe28, MASKDWORD, 0x80800000);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_path_a_standby);
  
  void rtl8723_phy_pi_mode_switch(struct ieee80211_hw *hw, bool pi_mode)
  {
  	u32 mode;
  
  	mode = pi_mode ? 0x01000100 : 0x01000000;
  	rtl_set_bbreg(hw, 0x820, MASKDWORD, mode);
  	rtl_set_bbreg(hw, 0x828, MASKDWORD, mode);
  }
  EXPORT_SYMBOL_GPL(rtl8723_phy_pi_mode_switch);