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

/******************************************************************************
 *
 * 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 "reg.h"
#include "def.h"
#include "phy.h"
#include "rf.h"
#include "dm.h"

static bool _rtl92ee_phy_rf6052_config_parafile(struct ieee80211_hw *hw);

void rtl92ee_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &rtlpriv->phy;

	switch (bandwidth) {
	case HT_CHANNEL_WIDTH_20:
		rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
					     0xfffff3ff) | BIT(10) | BIT(11));
		rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
			      rtlphy->rfreg_chnlval[0]);
		rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, RFREG_OFFSET_MASK,
			      rtlphy->rfreg_chnlval[0]);
		break;
	case HT_CHANNEL_WIDTH_20_40:
		rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
					     0xfffff3ff) | BIT(10));
		rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
			      rtlphy->rfreg_chnlval[0]);
		rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, RFREG_OFFSET_MASK,
			      rtlphy->rfreg_chnlval[0]);
		break;
	default:
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 "unknown bandwidth: %#X\n", bandwidth);
		break;
	}
}

bool rtl92ee_phy_rf6052_config(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &rtlpriv->phy;

	if (rtlphy->rf_type == RF_1T1R)
		rtlphy->num_total_rfpath = 1;
	else
		rtlphy->num_total_rfpath = 2;

	return _rtl92ee_phy_rf6052_config_parafile(hw);
}

static bool _rtl92ee_phy_rf6052_config_parafile(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &rtlpriv->phy;
	u32 u4_regvalue = 0;
	u8 rfpath;
	bool rtstatus = true;
	struct bb_reg_def *pphyreg;

	for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
		pphyreg = &rtlphy->phyreg_def[rfpath];

		switch (rfpath) {
		case RF90_PATH_A:
		case RF90_PATH_C:
			u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
						    BRFSI_RFENV);
			break;
		case RF90_PATH_B:
		case RF90_PATH_D:
			u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
						    BRFSI_RFENV << 16);
			break;
		}

		rtl_set_bbreg(hw, pphyreg->rfintfe, BRFSI_RFENV << 16, 0x1);
		udelay(1);

		rtl_set_bbreg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
		udelay(1);

		rtl_set_bbreg(hw, pphyreg->rfhssi_para2,
			      B3WIREADDREAALENGTH, 0x0);
		udelay(1);

		rtl_set_bbreg(hw, pphyreg->rfhssi_para2, B3WIREDATALENGTH, 0x0);
		udelay(1);

		switch (rfpath) {
		case RF90_PATH_A:
			rtstatus = rtl92ee_phy_config_rf_with_headerfile(hw,
						       (enum radio_path)rfpath);
			break;
		case RF90_PATH_B:
			rtstatus = rtl92ee_phy_config_rf_with_headerfile(hw,
						       (enum radio_path)rfpath);
			break;
		case RF90_PATH_C:
			break;
		case RF90_PATH_D:
			break;
		}

		switch (rfpath) {
		case RF90_PATH_A:
		case RF90_PATH_C:
			rtl_set_bbreg(hw, pphyreg->rfintfs,
				      BRFSI_RFENV, u4_regvalue);
			break;
		case RF90_PATH_B:
		case RF90_PATH_D:
			rtl_set_bbreg(hw, pphyreg->rfintfs,
				      BRFSI_RFENV << 16, u4_regvalue);
			break;
		}

		if (!rtstatus) {
			RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
				 "Radio[%d] Fail!!", rfpath);
			return false;
		}
	}

	RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "\n");
	return rtstatus;
}