| /****************************************************************************** | 
 |  * | 
 |  * Copyright(c) 2009-2010  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 _rtl8821ae_phy_rf6052_config_parafile(struct ieee80211_hw *hw); | 
 |  | 
 | void rtl8821ae_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth) | 
 | { | 
 | 	struct rtl_priv *rtlpriv = rtl_priv(hw); | 
 |  | 
 | 	switch (bandwidth) { | 
 | 	case HT_CHANNEL_WIDTH_20: | 
 | 		rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, BIT(11)|BIT(10), 3); | 
 | 		rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, BIT(11)|BIT(10), 3); | 
 | 		break; | 
 | 	case HT_CHANNEL_WIDTH_20_40: | 
 | 		rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, BIT(11)|BIT(10), 1); | 
 | 		rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, BIT(11)|BIT(10), 1); | 
 | 		break; | 
 | 	case HT_CHANNEL_WIDTH_80: | 
 | 		rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, BIT(11)|BIT(10), 0); | 
 | 		rtl_set_rfreg(hw, RF90_PATH_B, RF_CHNLBW, BIT(11)|BIT(10), 0); | 
 | 		break; | 
 | 	default: | 
 | 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, | 
 | 			 "unknown bandwidth: %#X\n", bandwidth); | 
 | 		break; | 
 | 	} | 
 | } | 
 |  | 
 | void rtl8821ae_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw, | 
 | 					  u8 *ppowerlevel) | 
 | { | 
 | 	struct rtl_priv *rtlpriv = rtl_priv(hw); | 
 | 	struct rtl_phy *rtlphy = &rtlpriv->phy; | 
 | 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); | 
 | 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); | 
 | 	u32 tx_agc[2] = {0, 0}, tmpval; | 
 | 	bool turbo_scanoff = false; | 
 | 	u8 idx1, idx2; | 
 | 	u8 *ptr; | 
 | 	u8 direction; | 
 | 	u32 pwrtrac_value; | 
 |  | 
 | 	if (rtlefuse->eeprom_regulatory != 0) | 
 | 		turbo_scanoff = true; | 
 |  | 
 | 	if (mac->act_scanning) { | 
 | 		tx_agc[RF90_PATH_A] = 0x3f3f3f3f; | 
 | 		tx_agc[RF90_PATH_B] = 0x3f3f3f3f; | 
 |  | 
 | 		if (turbo_scanoff) { | 
 | 			for (idx1 = RF90_PATH_A; | 
 | 				idx1 <= RF90_PATH_B; | 
 | 				idx1++) { | 
 | 				tx_agc[idx1] = ppowerlevel[idx1] | | 
 | 				    (ppowerlevel[idx1] << 8) | | 
 | 				    (ppowerlevel[idx1] << 16) | | 
 | 				    (ppowerlevel[idx1] << 24); | 
 | 			} | 
 | 		} | 
 | 	} else { | 
 | 		for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) { | 
 | 			tx_agc[idx1] = ppowerlevel[idx1] | | 
 | 			    (ppowerlevel[idx1] << 8) | | 
 | 			    (ppowerlevel[idx1] << 16) | | 
 | 			    (ppowerlevel[idx1] << 24); | 
 | 		} | 
 |  | 
 | 		if (rtlefuse->eeprom_regulatory == 0) { | 
 | 			tmpval = | 
 | 			    (rtlphy->mcs_txpwrlevel_origoffset[0][6]) + | 
 | 			    (rtlphy->mcs_txpwrlevel_origoffset[0][7] << | 
 | 			     8); | 
 | 			tx_agc[RF90_PATH_A] += tmpval; | 
 |  | 
 | 			tmpval = (rtlphy->mcs_txpwrlevel_origoffset[0][14]) + | 
 | 			    (rtlphy->mcs_txpwrlevel_origoffset[0][15] << | 
 | 			     24); | 
 | 			tx_agc[RF90_PATH_B] += tmpval; | 
 | 		} | 
 | 	} | 
 |  | 
 | 	for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) { | 
 | 		ptr = (u8 *)(&tx_agc[idx1]); | 
 | 		for (idx2 = 0; idx2 < 4; idx2++) { | 
 | 			if (*ptr > RF6052_MAX_TX_PWR) | 
 | 				*ptr = RF6052_MAX_TX_PWR; | 
 | 			ptr++; | 
 | 		} | 
 | 	} | 
 | 	rtl8821ae_dm_txpower_track_adjust(hw, 1, &direction, &pwrtrac_value); | 
 | 	if (direction == 1) { | 
 | 		tx_agc[0] += pwrtrac_value; | 
 | 		tx_agc[1] += pwrtrac_value; | 
 | 	} else if (direction == 2) { | 
 | 		tx_agc[0] -= pwrtrac_value; | 
 | 		tx_agc[1] -= pwrtrac_value; | 
 | 	} | 
 | 	tmpval = tx_agc[RF90_PATH_A]; | 
 | 	rtl_set_bbreg(hw, RTXAGC_A_CCK11_CCK1, MASKDWORD, tmpval); | 
 |  | 
 | 	RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 		"CCK PWR 1~11M (rf-A) = 0x%x (reg 0x%x)\n", tmpval, | 
 | 		 RTXAGC_A_CCK11_CCK1); | 
 |  | 
 | 	tmpval = tx_agc[RF90_PATH_B]; | 
 | 	rtl_set_bbreg(hw, RTXAGC_B_CCK11_CCK1, MASKDWORD, tmpval); | 
 |  | 
 | 	RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 		"CCK PWR 11M (rf-B) = 0x%x (reg 0x%x)\n", tmpval, | 
 | 		 RTXAGC_B_CCK11_CCK1); | 
 | } | 
 |  | 
 | static void rtl8821ae_phy_get_power_base(struct ieee80211_hw *hw, | 
 | 					 u8 *ppowerlevel_ofdm, | 
 | 					 u8 *ppowerlevel_bw20, | 
 | 					 u8 *ppowerlevel_bw40, u8 channel, | 
 | 					 u32 *ofdmbase, u32 *mcsbase) | 
 | { | 
 | 	struct rtl_priv *rtlpriv = rtl_priv(hw); | 
 | 	struct rtl_phy *rtlphy = &rtlpriv->phy; | 
 | 	u32 powerbase0, powerbase1; | 
 | 	u8 i, powerlevel[2]; | 
 |  | 
 | 	for (i = 0; i < 2; i++) { | 
 | 		powerbase0 = ppowerlevel_ofdm[i]; | 
 |  | 
 | 		powerbase0 = (powerbase0 << 24) | (powerbase0 << 16) | | 
 | 		    (powerbase0 << 8) | powerbase0; | 
 | 		*(ofdmbase + i) = powerbase0; | 
 | 		RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 			" [OFDM power base index rf(%c) = 0x%x]\n", | 
 | 			 ((i == 0) ? 'A' : 'B'), *(ofdmbase + i)); | 
 | 	} | 
 |  | 
 | 	for (i = 0; i < 2; i++) { | 
 | 		if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20) | 
 | 			powerlevel[i] = ppowerlevel_bw20[i]; | 
 | 		else | 
 | 			powerlevel[i] = ppowerlevel_bw40[i]; | 
 |  | 
 | 		powerbase1 = powerlevel[i]; | 
 | 		powerbase1 = (powerbase1 << 24) | | 
 | 		    (powerbase1 << 16) | (powerbase1 << 8) | powerbase1; | 
 |  | 
 | 		*(mcsbase + i) = powerbase1; | 
 |  | 
 | 		RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 			" [MCS power base index rf(%c) = 0x%x]\n", | 
 | 			 ((i == 0) ? 'A' : 'B'), *(mcsbase + i)); | 
 | 	} | 
 | } | 
 |  | 
 | static void get_txpower_writeval_by_regulatory(struct ieee80211_hw *hw, | 
 | 					       u8 channel, u8 index, | 
 | 					       u32 *powerbase0, | 
 | 					       u32 *powerbase1, | 
 | 					       u32 *p_outwriteval) | 
 | { | 
 | 	struct rtl_priv *rtlpriv = rtl_priv(hw); | 
 | 	struct rtl_phy *rtlphy = &rtlpriv->phy; | 
 | 	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); | 
 | 	u8 i, chnlgroup = 0, pwr_diff_limit[4], pwr_diff = 0, customer_pwr_diff; | 
 | 	u32 writeval, customer_limit, rf; | 
 |  | 
 | 	for (rf = 0; rf < 2; rf++) { | 
 | 		switch (rtlefuse->eeprom_regulatory) { | 
 | 		case 0: | 
 | 			chnlgroup = 0; | 
 |  | 
 | 			writeval = | 
 | 			    rtlphy->mcs_txpwrlevel_origoffset[chnlgroup][index + | 
 | 							(rf ? 8 : 0)] | 
 | 			    + ((index < 2) ? powerbase0[rf] : powerbase1[rf]); | 
 |  | 
 | 			RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 				"RTK better performance, writeval(%c) = 0x%x\n", | 
 | 				 ((rf == 0) ? 'A' : 'B'), writeval); | 
 | 			break; | 
 | 		case 1: | 
 | 			if (rtlphy->pwrgroup_cnt == 1) { | 
 | 				chnlgroup = 0; | 
 | 			} else { | 
 | 				if (channel < 3) | 
 | 					chnlgroup = 0; | 
 | 				else if (channel < 6) | 
 | 					chnlgroup = 1; | 
 | 				else if (channel < 9) | 
 | 					chnlgroup = 2; | 
 | 				else if (channel < 12) | 
 | 					chnlgroup = 3; | 
 | 				else if (channel < 14) | 
 | 					chnlgroup = 4; | 
 | 				else if (channel == 14) | 
 | 					chnlgroup = 5; | 
 | 			} | 
 |  | 
 | 			writeval = | 
 | 			    rtlphy->mcs_txpwrlevel_origoffset[chnlgroup] | 
 | 			    [index + (rf ? 8 : 0)] + ((index < 2) ? | 
 | 						      powerbase0[rf] : | 
 | 						      powerbase1[rf]); | 
 |  | 
 | 			RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 				"Realtek regulatory, 20MHz, writeval(%c) = 0x%x\n", | 
 | 				 ((rf == 0) ? 'A' : 'B'), writeval); | 
 |  | 
 | 			break; | 
 | 		case 2: | 
 | 			writeval = | 
 | 			    ((index < 2) ? powerbase0[rf] : powerbase1[rf]); | 
 |  | 
 | 			RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 				"Better regulatory, writeval(%c) = 0x%x\n", | 
 | 				 ((rf == 0) ? 'A' : 'B'), writeval); | 
 | 			break; | 
 | 		case 3: | 
 | 			chnlgroup = 0; | 
 |  | 
 | 			if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { | 
 | 				RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 					"customer's limit, 40MHz rf(%c) = 0x%x\n", | 
 | 					 ((rf == 0) ? 'A' : 'B'), | 
 | 					 rtlefuse->pwrgroup_ht40[rf][channel - | 
 | 								     1]); | 
 | 			} else { | 
 | 				RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 					"customer's limit, 20MHz rf(%c) = 0x%x\n", | 
 | 					 ((rf == 0) ? 'A' : 'B'), | 
 | 					 rtlefuse->pwrgroup_ht20[rf][channel - | 
 | 								     1]); | 
 | 			} | 
 |  | 
 | 			if (index < 2) | 
 | 				pwr_diff = rtlefuse->txpwr_legacyhtdiff[rf][channel-1]; | 
 | 			else if (rtlphy->current_chan_bw ==  HT_CHANNEL_WIDTH_20) | 
 | 				pwr_diff = | 
 | 				  rtlefuse->txpwr_ht20diff[rf][channel-1]; | 
 |  | 
 | 			if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) | 
 | 				customer_pwr_diff = | 
 | 				  rtlefuse->pwrgroup_ht40[rf][channel-1]; | 
 | 			else | 
 | 				customer_pwr_diff = | 
 | 				  rtlefuse->pwrgroup_ht20[rf][channel-1]; | 
 |  | 
 | 			if (pwr_diff > customer_pwr_diff) | 
 | 				pwr_diff = 0; | 
 | 			else | 
 | 				pwr_diff = customer_pwr_diff - pwr_diff; | 
 |  | 
 | 			for (i = 0; i < 4; i++) { | 
 | 				pwr_diff_limit[i] = | 
 | 				    (u8)((rtlphy->mcs_txpwrlevel_origoffset | 
 | 				    [chnlgroup][index + (rf ? 8 : 0)] & | 
 | 				    (0x7f << (i * 8))) >> (i * 8)); | 
 |  | 
 | 				if (pwr_diff_limit[i] > pwr_diff) | 
 | 					pwr_diff_limit[i] = pwr_diff; | 
 | 			} | 
 |  | 
 | 			customer_limit = (pwr_diff_limit[3] << 24) | | 
 | 			    (pwr_diff_limit[2] << 16) | | 
 | 			    (pwr_diff_limit[1] << 8) | (pwr_diff_limit[0]); | 
 |  | 
 | 			RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 				"Customer's limit rf(%c) = 0x%x\n", | 
 | 				 ((rf == 0) ? 'A' : 'B'), customer_limit); | 
 |  | 
 | 			writeval = customer_limit + | 
 | 			    ((index < 2) ? powerbase0[rf] : powerbase1[rf]); | 
 |  | 
 | 			RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 				"Customer, writeval rf(%c)= 0x%x\n", | 
 | 				 ((rf == 0) ? 'A' : 'B'), writeval); | 
 | 			break; | 
 | 		default: | 
 | 			chnlgroup = 0; | 
 | 			writeval = | 
 | 			    rtlphy->mcs_txpwrlevel_origoffset[chnlgroup] | 
 | 			    [index + (rf ? 8 : 0)] | 
 | 			    + ((index < 2) ? powerbase0[rf] : powerbase1[rf]); | 
 |  | 
 | 			RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 				"RTK better performance, writeval rf(%c) = 0x%x\n", | 
 | 				 ((rf == 0) ? 'A' : 'B'), writeval); | 
 | 			break; | 
 | 		} | 
 |  | 
 | 		if (rtlpriv->dm.dynamic_txhighpower_lvl == TXHIGHPWRLEVEL_BT1) | 
 | 			writeval = writeval - 0x06060606; | 
 | 		else if (rtlpriv->dm.dynamic_txhighpower_lvl == | 
 | 			 TXHIGHPWRLEVEL_BT2) | 
 | 			writeval = writeval - 0x0c0c0c0c; | 
 | 		*(p_outwriteval + rf) = writeval; | 
 | 	} | 
 | } | 
 |  | 
 | static void _rtl8821ae_write_ofdm_power_reg(struct ieee80211_hw *hw, | 
 | 					    u8 index, u32 *pvalue) | 
 | { | 
 | 	struct rtl_priv *rtlpriv = rtl_priv(hw); | 
 | 	u16 regoffset_a[6] = { | 
 | 		RTXAGC_A_OFDM18_OFDM6, RTXAGC_A_OFDM54_OFDM24, | 
 | 		RTXAGC_A_MCS03_MCS00, RTXAGC_A_MCS07_MCS04, | 
 | 		RTXAGC_A_MCS11_MCS08, RTXAGC_A_MCS15_MCS12 | 
 | 	}; | 
 | 	u16 regoffset_b[6] = { | 
 | 		RTXAGC_B_OFDM18_OFDM6, RTXAGC_B_OFDM54_OFDM24, | 
 | 		RTXAGC_B_MCS03_MCS00, RTXAGC_B_MCS07_MCS04, | 
 | 		RTXAGC_B_MCS11_MCS08, RTXAGC_B_MCS15_MCS12 | 
 | 	}; | 
 | 	u8 i, rf, pwr_val[4]; | 
 | 	u32 writeval; | 
 | 	u16 regoffset; | 
 |  | 
 | 	for (rf = 0; rf < 2; rf++) { | 
 | 		writeval = pvalue[rf]; | 
 | 		for (i = 0; i < 4; i++) { | 
 | 			pwr_val[i] = (u8)((writeval & (0x7f << | 
 | 							(i * 8))) >> (i * 8)); | 
 |  | 
 | 			if (pwr_val[i] > RF6052_MAX_TX_PWR) | 
 | 				pwr_val[i] = RF6052_MAX_TX_PWR; | 
 | 		} | 
 | 		writeval = (pwr_val[3] << 24) | (pwr_val[2] << 16) | | 
 | 		    (pwr_val[1] << 8) | pwr_val[0]; | 
 |  | 
 | 		if (rf == 0) | 
 | 			regoffset = regoffset_a[index]; | 
 | 		else | 
 | 			regoffset = regoffset_b[index]; | 
 | 		rtl_set_bbreg(hw, regoffset, MASKDWORD, writeval); | 
 |  | 
 | 		RTPRINT(rtlpriv, FPHY, PHY_TXPWR, | 
 | 			"Set 0x%x = %08x\n", regoffset, writeval); | 
 | 	} | 
 | } | 
 |  | 
 | void rtl8821ae_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw, | 
 | 					   u8 *ppowerlevel_ofdm, | 
 | 					   u8 *ppowerlevel_bw20, | 
 | 					   u8 *ppowerlevel_bw40, | 
 | 					   u8 channel) | 
 | { | 
 | 	u32 writeval[2], powerbase0[2], powerbase1[2]; | 
 | 	u8 index; | 
 | 	u8 direction; | 
 | 	u32 pwrtrac_value; | 
 |  | 
 | 	rtl8821ae_phy_get_power_base(hw, ppowerlevel_ofdm, | 
 | 				     ppowerlevel_bw20, | 
 | 				     ppowerlevel_bw40, | 
 | 				     channel, | 
 | 				     &powerbase0[0], | 
 | 				     &powerbase1[0]); | 
 |  | 
 | 	rtl8821ae_dm_txpower_track_adjust(hw, 1, &direction, &pwrtrac_value); | 
 |  | 
 | 	for (index = 0; index < 6; index++) { | 
 | 		get_txpower_writeval_by_regulatory(hw, channel, index, | 
 | 						   &powerbase0[0], | 
 | 						   &powerbase1[0], | 
 | 						   &writeval[0]); | 
 | 		if (direction == 1) { | 
 | 			writeval[0] += pwrtrac_value; | 
 | 			writeval[1] += pwrtrac_value; | 
 | 		} else if (direction == 2) { | 
 | 			writeval[0] -= pwrtrac_value; | 
 | 			writeval[1] -= pwrtrac_value; | 
 | 		} | 
 | 		_rtl8821ae_write_ofdm_power_reg(hw, index, &writeval[0]); | 
 | 	} | 
 | } | 
 |  | 
 | bool rtl8821ae_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 _rtl8821ae_phy_rf6052_config_parafile(hw); | 
 | } | 
 |  | 
 | static bool _rtl8821ae_phy_rf6052_config_parafile(struct ieee80211_hw *hw) | 
 | { | 
 | 	struct rtl_priv *rtlpriv = rtl_priv(hw); | 
 | 	struct rtl_phy *rtlphy = &rtlpriv->phy; | 
 | 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); | 
 | 	u8 rfpath; | 
 | 	bool rtstatus = true; | 
 |  | 
 | 	for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) { | 
 | 		switch (rfpath) { | 
 | 		case RF90_PATH_A: { | 
 | 			if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) | 
 | 				rtstatus = | 
 | 				  rtl8812ae_phy_config_rf_with_headerfile(hw, | 
 | 							(enum radio_path)rfpath); | 
 | 			else | 
 | 				rtstatus = | 
 | 				  rtl8821ae_phy_config_rf_with_headerfile(hw, | 
 | 							(enum radio_path)rfpath); | 
 | 			break; | 
 | 			} | 
 | 		case RF90_PATH_B: | 
 | 			if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) | 
 | 				rtstatus = | 
 | 				  rtl8812ae_phy_config_rf_with_headerfile(hw, | 
 | 							(enum radio_path)rfpath); | 
 | 			else | 
 | 				rtstatus = | 
 | 				  rtl8821ae_phy_config_rf_with_headerfile(hw, | 
 | 							(enum radio_path)rfpath); | 
 | 			break; | 
 | 		case RF90_PATH_C: | 
 | 			break; | 
 | 		case RF90_PATH_D: | 
 | 			break; | 
 | 		} | 
 |  | 
 | 		if (!rtstatus) { | 
 | 			RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, | 
 | 				 "Radio[%d] Fail!!\n", rfpath); | 
 | 			return false; | 
 | 		} | 
 | 	} | 
 |  | 
 | 	/*put arrays in dm.c*/ | 
 | 	RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "\n"); | 
 | 	return rtstatus; | 
 | } |