rtlwifi: rtl8192se: Merge dynamic management routines

Merge routines dm.c and dm.h for RTL8192SE.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Chaoming_Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/rtl8192se/dm.c

+/******************************************************************************
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * 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 "../base.h"
+#include "reg.h"
+#include "def.h"
+#include "phy.h"
+#include "dm.h"
+#include "fw.h"
+
+struct dig_t digtable;
+static const u32 edca_setting_dl[PEER_MAX] = {
+	0xa44f,		/* 0 UNKNOWN */
+	0x5ea44f,	/* 1 REALTEK_90 */
+	0x5ea44f,	/* 2 REALTEK_92SE */
+	0xa630,		/* 3 BROAD	*/
+	0xa44f,		/* 4 RAL */
+	0xa630,		/* 5 ATH */
+	0xa630,		/* 6 CISCO */
+	0xa42b,		/* 7 MARV */
+};
+
+static const u32 edca_setting_dl_gmode[PEER_MAX] = {
+	0x4322,		/* 0 UNKNOWN */
+	0xa44f,		/* 1 REALTEK_90 */
+	0x5ea44f,	/* 2 REALTEK_92SE */
+	0xa42b,		/* 3 BROAD */
+	0x5e4322,	/* 4 RAL */
+	0x4322,		/* 5 ATH */
+	0xa430,		/* 6 CISCO */
+	0x5ea44f,	/* 7 MARV */
+};
+
+static const u32 edca_setting_ul[PEER_MAX] = {
+	0x5e4322,	/* 0 UNKNOWN */
+	0xa44f,		/* 1 REALTEK_90 */
+	0x5ea44f,	/* 2 REALTEK_92SE */
+	0x5ea322,	/* 3 BROAD */
+	0x5ea422,	/* 4 RAL */
+	0x5ea322,	/* 5 ATH */
+	0x3ea44f,	/* 6 CISCO */
+	0x5ea44f,	/* 7 MARV */
+};
+
+static void _rtl92s_dm_check_edca_turbo(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+
+	static u64 last_txok_cnt;
+	static u64 last_rxok_cnt;
+	u64 cur_txok_cnt = 0;
+	u64 cur_rxok_cnt = 0;
+
+	u32 edca_be_ul = edca_setting_ul[mac->vendor];
+	u32 edca_be_dl = edca_setting_dl[mac->vendor];
+	u32 edca_gmode = edca_setting_dl_gmode[mac->vendor];
+
+	if (mac->link_state != MAC80211_LINKED) {
+		rtlpriv->dm.current_turbo_edca = false;
+		goto dm_checkedcaturbo_exit;
+	}
+
+	if ((!rtlpriv->dm.is_any_nonbepkts) &&
+	    (!rtlpriv->dm.disable_framebursting)) {
+		cur_txok_cnt = rtlpriv->stats.txbytesunicast - last_txok_cnt;
+		cur_rxok_cnt = rtlpriv->stats.rxbytesunicast - last_rxok_cnt;
+
+		if (rtlpriv->phy.rf_type == RF_1T2R) {
+			if (cur_txok_cnt > 4 * cur_rxok_cnt) {
+				/* Uplink TP is present. */
+				if (rtlpriv->dm.is_cur_rdlstate ||
+					!rtlpriv->dm.current_turbo_edca) {
+					rtl_write_dword(rtlpriv, EDCAPARA_BE,
+							edca_be_ul);
+					rtlpriv->dm.is_cur_rdlstate = false;
+				}
+			} else {/* Balance TP is present. */
+				if (!rtlpriv->dm.is_cur_rdlstate ||
+					!rtlpriv->dm.current_turbo_edca) {
+					if (mac->mode == WIRELESS_MODE_G ||
+					    mac->mode == WIRELESS_MODE_B)
+						rtl_write_dword(rtlpriv,
+								EDCAPARA_BE,
+								edca_gmode);
+					else
+						rtl_write_dword(rtlpriv,
+								EDCAPARA_BE,
+								edca_be_dl);
+					rtlpriv->dm.is_cur_rdlstate = true;
+				}
+			}
+			rtlpriv->dm.current_turbo_edca = true;
+		} else {
+			if (cur_rxok_cnt > 4 * cur_txok_cnt) {
+				if (!rtlpriv->dm.is_cur_rdlstate ||
+					!rtlpriv->dm.current_turbo_edca) {
+					if (mac->mode == WIRELESS_MODE_G ||
+					    mac->mode == WIRELESS_MODE_B)
+						rtl_write_dword(rtlpriv,
+								EDCAPARA_BE,
+								edca_gmode);
+					else
+						rtl_write_dword(rtlpriv,
+								EDCAPARA_BE,
+								edca_be_dl);
+					rtlpriv->dm.is_cur_rdlstate = true;
+				}
+			} else {
+				if (rtlpriv->dm.is_cur_rdlstate ||
+					!rtlpriv->dm.current_turbo_edca) {
+					rtl_write_dword(rtlpriv, EDCAPARA_BE,
+							edca_be_ul);
+					rtlpriv->dm.is_cur_rdlstate = false;
+				}
+			}
+			rtlpriv->dm.current_turbo_edca = true;
+		}
+	} else {
+		if (rtlpriv->dm.current_turbo_edca) {
+			u8 tmp = AC0_BE;
+			rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AC_PARAM,
+						      (u8 *)(&tmp));
+			rtlpriv->dm.current_turbo_edca = false;
+		}
+	}
+
+dm_checkedcaturbo_exit:
+	rtlpriv->dm.is_any_nonbepkts = false;
+	last_txok_cnt = rtlpriv->stats.txbytesunicast;
+	last_rxok_cnt = rtlpriv->stats.rxbytesunicast;
+}
+
+static void _rtl92s_dm_txpowertracking_callback_thermalmeter(
+					struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+	u8 thermalvalue = 0;
+
+	rtlpriv->dm.txpower_trackinginit = true;
+
+	thermalvalue = (u8)rtl_get_rfreg(hw, RF90_PATH_A, RF_T_METER, 0x1f);
+
+	RT_TRACE(rtlpriv, COMP_POWER_TRACKING, DBG_LOUD,
+		 ("Readback Thermal Meter = 0x%x pre thermal meter 0x%x "
+		  "eeprom_thermalmeter 0x%x\n", thermalvalue,
+		  rtlpriv->dm.thermalvalue, rtlefuse->eeprom_thermalmeter));
+
+	if (thermalvalue) {
+		rtlpriv->dm.thermalvalue = thermalvalue;
+		rtl92s_phy_set_fw_cmd(hw, FW_CMD_TXPWR_TRACK_THERMAL);
+	}
+
+	rtlpriv->dm.txpowercount = 0;
+}
+
+static void _rtl92s_dm_check_txpowertracking_thermalmeter(
+					struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_phy *rtlphy = &(rtlpriv->phy);
+	static u8 tm_trigger;
+	u8 tx_power_checkcnt = 5;
+
+	/* 2T2R TP issue */
+	if (rtlphy->rf_type == RF_2T2R)
+		return;
+
+	if (!rtlpriv->dm.txpower_tracking)
+		return;
+
+	if (rtlpriv->dm.txpowercount <= tx_power_checkcnt) {
+		rtlpriv->dm.txpowercount++;
+		return;
+	}
+
+	if (!tm_trigger) {
+		rtl_set_rfreg(hw, RF90_PATH_A, RF_T_METER,
+			      RFREG_OFFSET_MASK, 0x60);
+		tm_trigger = 1;
+	} else {
+		_rtl92s_dm_txpowertracking_callback_thermalmeter(hw);
+		tm_trigger = 0;
+	}
+}
+
+static void _rtl92s_dm_refresh_rateadaptive_mask(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	struct rate_adaptive *ra = &(rtlpriv->ra);
+
+	u32 low_rssi_thresh = 0;
+	u32 middle_rssi_thresh = 0;
+	u32 high_rssi_thresh = 0;
+	u8 rssi_level;
+	struct ieee80211_sta *sta = NULL;
+
+	if (is_hal_stop(rtlhal))
+		return;
+
+	if (!rtlpriv->dm.useramask)
+		return;
+
+	if (!rtlpriv->dm.inform_fw_driverctrldm) {
+		rtl92s_phy_set_fw_cmd(hw, FW_CMD_CTRL_DM_BY_DRIVER);
+		rtlpriv->dm.inform_fw_driverctrldm = true;
+	}
+
+	rcu_read_lock();
+	if (mac->opmode == NL80211_IFTYPE_STATION)
+		sta = get_sta(hw, mac->vif, mac->bssid);
+	if ((mac->link_state == MAC80211_LINKED) &&
+	    (mac->opmode == NL80211_IFTYPE_STATION)) {
+		switch (ra->pre_ratr_state) {
+		case DM_RATR_STA_HIGH:
+			high_rssi_thresh = 40;
+			middle_rssi_thresh = 30;
+			low_rssi_thresh = 20;
+			break;
+		case DM_RATR_STA_MIDDLE:
+			high_rssi_thresh = 44;
+			middle_rssi_thresh = 30;
+			low_rssi_thresh = 20;
+			break;
+		case DM_RATR_STA_LOW:
+			high_rssi_thresh = 44;
+			middle_rssi_thresh = 34;
+			low_rssi_thresh = 20;
+			break;
+		case DM_RATR_STA_ULTRALOW:
+			high_rssi_thresh = 44;
+			middle_rssi_thresh = 34;
+			low_rssi_thresh = 24;
+			break;
+		default:
+			high_rssi_thresh = 44;
+			middle_rssi_thresh = 34;
+			low_rssi_thresh = 24;
+			break;
+		}
+
+		if (rtlpriv->dm.undecorated_smoothed_pwdb >
+		    (long)high_rssi_thresh) {
+			ra->ratr_state = DM_RATR_STA_HIGH;
+			rssi_level = 1;
+		} else if (rtlpriv->dm.undecorated_smoothed_pwdb >
+			   (long)middle_rssi_thresh) {
+			ra->ratr_state = DM_RATR_STA_LOW;
+			rssi_level = 3;
+		} else if (rtlpriv->dm.undecorated_smoothed_pwdb >
+			   (long)low_rssi_thresh) {
+			ra->ratr_state = DM_RATR_STA_LOW;
+			rssi_level = 5;
+		} else {
+			ra->ratr_state = DM_RATR_STA_ULTRALOW;
+			rssi_level = 6;
+		}
+
+		if (ra->pre_ratr_state != ra->ratr_state) {
+			RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD, ("RSSI = %ld "
+				"RSSI_LEVEL = %d PreState = %d, CurState = %d\n",
+				rtlpriv->dm.undecorated_smoothed_pwdb,
+				ra->ratr_state,
+				ra->pre_ratr_state, ra->ratr_state));
+
+			rtlpriv->cfg->ops->update_rate_tbl(hw, sta,
+							   ra->ratr_state);
+			ra->pre_ratr_state = ra->ratr_state;
+		}
+	}
+	rcu_read_unlock();
+}
+
+static void _rtl92s_dm_switch_baseband_mrc(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	struct rtl_phy *rtlphy = &(rtlpriv->phy);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	bool current_mrc;
+	bool enable_mrc = true;
+	long tmpentry_maxpwdb = 0;
+	u8 rssi_a = 0;
+	u8 rssi_b = 0;
+
+	if (is_hal_stop(rtlhal))
+		return;
+
+	if ((rtlphy->rf_type == RF_1T1R) || (rtlphy->rf_type == RF_2T2R))
+		return;
+
+	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_MRC, (u8 *)(&current_mrc));
+
+	if (mac->link_state >= MAC80211_LINKED) {
+		if (rtlpriv->dm.undecorated_smoothed_pwdb > tmpentry_maxpwdb) {
+			rssi_a = rtlpriv->stats.rx_rssi_percentage[RF90_PATH_A];
+			rssi_b = rtlpriv->stats.rx_rssi_percentage[RF90_PATH_B];
+		}
+	}
+
+	/* MRC settings would NOT affect TP on Wireless B mode. */
+	if (mac->mode != WIRELESS_MODE_B) {
+		if ((rssi_a == 0) && (rssi_b == 0)) {
+			enable_mrc = true;
+		} else if (rssi_b > 30) {
+			/* Turn on B-Path */
+			enable_mrc = true;
+		} else if (rssi_b < 5) {
+			/* Turn off B-path  */
+			enable_mrc = false;
+		/* Take care of RSSI differentiation. */
+		} else if (rssi_a > 15 && (rssi_a >= rssi_b)) {
+			if ((rssi_a - rssi_b) > 15)
+				/* Turn off B-path  */
+				enable_mrc = false;
+			else if ((rssi_a - rssi_b) < 10)
+				/* Turn on B-Path */
+				enable_mrc = true;
+			else
+				enable_mrc = current_mrc;
+		} else {
+			/* Turn on B-Path */
+			enable_mrc = true;
+		}
+	}
+
+	/* Update MRC settings if needed. */
+	if (enable_mrc != current_mrc)
+		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_MRC,
+					      (u8 *)&enable_mrc);
+
+}
+
+void rtl92s_dm_init_edca_turbo(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	rtlpriv->dm.current_turbo_edca = false;
+	rtlpriv->dm.is_any_nonbepkts = false;
+	rtlpriv->dm.is_cur_rdlstate = false;
+}
+
+static void _rtl92s_dm_init_rate_adaptive_mask(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rate_adaptive *ra = &(rtlpriv->ra);
+
+	ra->ratr_state = DM_RATR_STA_MAX;
+	ra->pre_ratr_state = DM_RATR_STA_MAX;
+
+	if (rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER)
+		rtlpriv->dm.useramask = true;
+	else
+		rtlpriv->dm.useramask = false;
+
+	rtlpriv->dm.useramask = false;
+	rtlpriv->dm.inform_fw_driverctrldm = false;
+}
+
+static void _rtl92s_dm_init_txpowertracking_thermalmeter(
+				struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	rtlpriv->dm.txpower_tracking = true;
+	rtlpriv->dm.txpowercount = 0;
+	rtlpriv->dm.txpower_trackinginit = false;
+}
+
+static void _rtl92s_dm_false_alarm_counter_statistics(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct false_alarm_statistics *falsealm_cnt = &(rtlpriv->falsealm_cnt);
+	u32 ret_value;
+
+	ret_value = rtl_get_bbreg(hw, ROFDM_PHYCOUNTER1, MASKDWORD);
+	falsealm_cnt->cnt_parity_fail = ((ret_value & 0xffff0000) >> 16);
+
+	ret_value = rtl_get_bbreg(hw, ROFDM_PHYCOUNTER2, MASKDWORD);
+	falsealm_cnt->cnt_rate_illegal = (ret_value & 0xffff);
+	falsealm_cnt->cnt_crc8_fail = ((ret_value & 0xffff0000) >> 16);
+	ret_value = rtl_get_bbreg(hw, ROFDM_PHYCOUNTER3, MASKDWORD);
+	falsealm_cnt->cnt_mcs_fail = (ret_value & 0xffff);
+
+	falsealm_cnt->cnt_ofdm_fail = falsealm_cnt->cnt_parity_fail +
+		falsealm_cnt->cnt_rate_illegal + falsealm_cnt->cnt_crc8_fail +
+		falsealm_cnt->cnt_mcs_fail;
+
+	/* read CCK false alarm */
+	ret_value = rtl_get_bbreg(hw, 0xc64, MASKDWORD);
+	falsealm_cnt->cnt_cck_fail = (ret_value & 0xffff);
+	falsealm_cnt->cnt_all =	falsealm_cnt->cnt_ofdm_fail +
+		falsealm_cnt->cnt_cck_fail;
+}
+
+static void rtl92s_backoff_enable_flag(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct false_alarm_statistics *falsealm_cnt = &(rtlpriv->falsealm_cnt);
+
+	if (falsealm_cnt->cnt_all > digtable.fa_highthresh) {
+		if ((digtable.backoff_val - 6) <
+			digtable.backoffval_range_min)
+			digtable.backoff_val = digtable.backoffval_range_min;
+		else
+			digtable.backoff_val -= 6;
+	} else if (falsealm_cnt->cnt_all < digtable.fa_lowthresh) {
+		if ((digtable.backoff_val + 6) >
+			digtable.backoffval_range_max)
+			digtable.backoff_val =
+				 digtable.backoffval_range_max;
+		else
+			digtable.backoff_val += 6;
+	}
+}
+
+static void _rtl92s_dm_initial_gain_sta_beforeconnect(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct false_alarm_statistics *falsealm_cnt = &(rtlpriv->falsealm_cnt);
+	static u8 initialized, force_write;
+	u8 initial_gain = 0;
+
+	if ((digtable.pre_sta_connectstate == digtable.cur_sta_connectstate) ||
+		(digtable.cur_sta_connectstate == DIG_STA_BEFORE_CONNECT)) {
+		if (digtable.cur_sta_connectstate == DIG_STA_BEFORE_CONNECT) {
+			if (rtlpriv->psc.rfpwr_state != ERFON)
+				return;
+
+			if (digtable.backoff_enable_flag == true)
+				rtl92s_backoff_enable_flag(hw);
+			else
+				digtable.backoff_val = DM_DIG_BACKOFF;
+
+			if ((digtable.rssi_val + 10 - digtable.backoff_val) >
+				digtable.rx_gain_range_max)
+				digtable.cur_igvalue =
+						digtable.rx_gain_range_max;
+			else if ((digtable.rssi_val + 10 - digtable.backoff_val)
+				 < digtable.rx_gain_range_min)
+				digtable.cur_igvalue =
+						digtable.rx_gain_range_min;
+			else
+				digtable.cur_igvalue = digtable.rssi_val + 10 -
+						digtable.backoff_val;
+
+			if (falsealm_cnt->cnt_all > 10000)
+				digtable.cur_igvalue =
+					 (digtable.cur_igvalue > 0x33) ?
+					 digtable.cur_igvalue : 0x33;
+
+			if (falsealm_cnt->cnt_all > 16000)
+				digtable.cur_igvalue =
+						 digtable.rx_gain_range_max;
+		/* connected -> connected or disconnected -> disconnected  */
+		} else {
+			/* Firmware control DIG, do nothing in driver dm */
+			return;
+		}
+		/* disconnected -> connected or connected ->
+		 * disconnected or beforeconnect->(dis)connected */
+	} else {
+		/* Enable FW DIG */
+		digtable.dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
+		rtl92s_phy_set_fw_cmd(hw, FW_CMD_DIG_ENABLE);
+
+		digtable.backoff_val = DM_DIG_BACKOFF;
+		digtable.cur_igvalue = rtlpriv->phy.default_initialgain[0];
+		digtable.pre_igvalue = 0;
+		return;
+	}
+
+	/* Forced writing to prevent from fw-dig overwriting. */
+	if (digtable.pre_igvalue != rtl_get_bbreg(hw, ROFDM0_XAAGCCORE1,
+						  MASKBYTE0))
+		force_write = 1;
+
+	if ((digtable.pre_igvalue != digtable.cur_igvalue) ||
+	    !initialized || force_write) {
+		/* Disable FW DIG */
+		rtl92s_phy_set_fw_cmd(hw, FW_CMD_DIG_DISABLE);
+
+		initial_gain = (u8)digtable.cur_igvalue;
+
+		/* Set initial gain. */
+		rtl_set_bbreg(hw, ROFDM0_XAAGCCORE1, MASKBYTE0, initial_gain);
+		rtl_set_bbreg(hw, ROFDM0_XBAGCCORE1, MASKBYTE0, initial_gain);
+		digtable.pre_igvalue = digtable.cur_igvalue;
+		initialized = 1;
+		force_write = 0;
+	}
+}
+
+static void _rtl92s_dm_ctrl_initgain_bytwoport(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (rtlpriv->mac80211.act_scanning)
+		return;
+
+	/* Decide the current status and if modify initial gain or not */
+	if (rtlpriv->mac80211.link_state >= MAC80211_LINKED ||
+	    rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC)
+		digtable.cur_sta_connectstate = DIG_STA_CONNECT;
+	else
+		digtable.cur_sta_connectstate = DIG_STA_DISCONNECT;
+
+	digtable.rssi_val = rtlpriv->dm.undecorated_smoothed_pwdb;
+
+	/* Change dig mode to rssi */
+	if (digtable.cur_sta_connectstate != DIG_STA_DISCONNECT) {
+		if (digtable.dig_twoport_algorithm ==
+		    DIG_TWO_PORT_ALGO_FALSE_ALARM) {
+			digtable.dig_twoport_algorithm = DIG_TWO_PORT_ALGO_RSSI;
+			rtl92s_phy_set_fw_cmd(hw, FW_CMD_DIG_MODE_SS);
+		}
+	}
+
+	_rtl92s_dm_false_alarm_counter_statistics(hw);
+	_rtl92s_dm_initial_gain_sta_beforeconnect(hw);
+
+	digtable.pre_sta_connectstate = digtable.cur_sta_connectstate;
+}
+
+static void _rtl92s_dm_ctrl_initgain_byrssi(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_phy *rtlphy = &(rtlpriv->phy);
+
+	/* 2T2R TP issue */
+	if (rtlphy->rf_type == RF_2T2R)
+		return;
+
+	if (!rtlpriv->dm.dm_initialgain_enable)
+		return;
+
+	if (digtable.dig_enable_flag == false)
+		return;
+
+	_rtl92s_dm_ctrl_initgain_bytwoport(hw);
+}
+
+static void _rtl92s_dm_dynamic_txpower(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_phy *rtlphy = &(rtlpriv->phy);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	long undecorated_smoothed_pwdb;
+	long txpwr_threshold_lv1, txpwr_threshold_lv2;
+
+	/* 2T2R TP issue */
+	if (rtlphy->rf_type == RF_2T2R)
+		return;
+
+	if (!rtlpriv->dm.dynamic_txpower_enable ||
+	    rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
+		rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+		return;
+	}
+
+	if ((mac->link_state < MAC80211_LINKED) &&
+	    (rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb == 0)) {
+		RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
+			 ("Not connected to any\n"));
+
+		rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+
+		rtlpriv->dm.last_dtp_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+		return;
+	}
+
+	if (mac->link_state >= MAC80211_LINKED) {
+		if (mac->opmode == NL80211_IFTYPE_ADHOC) {
+			undecorated_smoothed_pwdb =
+			    rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb;
+			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+				 ("AP Client PWDB = 0x%lx\n",
+				  undecorated_smoothed_pwdb));
+		} else {
+			undecorated_smoothed_pwdb =
+			    rtlpriv->dm.undecorated_smoothed_pwdb;
+			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+				 ("STA Default Port PWDB = 0x%lx\n",
+				  undecorated_smoothed_pwdb));
+		}
+	} else {
+		undecorated_smoothed_pwdb =
+		    rtlpriv->dm.entry_min_undecoratedsmoothed_pwdb;
+
+		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+			 ("AP Ext Port PWDB = 0x%lx\n",
+			  undecorated_smoothed_pwdb));
+	}
+
+	txpwr_threshold_lv2 = TX_POWER_NEAR_FIELD_THRESH_LVL2;
+	txpwr_threshold_lv1 = TX_POWER_NEAR_FIELD_THRESH_LVL1;
+
+	if (rtl_get_bbreg(hw, 0xc90, MASKBYTE0) == 1)
+		rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+	else if (undecorated_smoothed_pwdb >= txpwr_threshold_lv2)
+		rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL2;
+	else if ((undecorated_smoothed_pwdb < (txpwr_threshold_lv2 - 3)) &&
+		(undecorated_smoothed_pwdb >= txpwr_threshold_lv1))
+		rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL1;
+	else if (undecorated_smoothed_pwdb < (txpwr_threshold_lv1 - 3))
+		rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+
+	if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl))
+		rtl92s_phy_set_txpower(hw, rtlphy->current_channel);
+
+	rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
+}
+
+static void _rtl92s_dm_init_dig(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	/* Disable DIG scheme now.*/
+	digtable.dig_enable_flag = true;
+	digtable.backoff_enable_flag = true;
+
+	if ((rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER) &&
+	    (hal_get_firmwareversion(rtlpriv) >= 0x3c))
+		digtable.dig_algorithm = DIG_ALGO_BY_TOW_PORT;
+	else
+		digtable.dig_algorithm =
+			 DIG_ALGO_BEFORE_CONNECT_BY_RSSI_AND_ALARM;
+
+	digtable.dig_twoport_algorithm = DIG_TWO_PORT_ALGO_RSSI;
+	digtable.dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
+	/* off=by real rssi value, on=by digtable.rssi_val for new dig */
+	digtable.dig_dbgmode = DM_DBG_OFF;
+	digtable.dig_slgorithm_switch = 0;
+
+	/* 2007/10/04 MH Define init gain threshol. */
+	digtable.dig_state = DM_STA_DIG_MAX;
+	digtable.dig_highpwrstate = DM_STA_DIG_MAX;
+
+	digtable.cur_sta_connectstate = DIG_STA_DISCONNECT;
+	digtable.pre_sta_connectstate = DIG_STA_DISCONNECT;
+	digtable.cur_ap_connectstate = DIG_AP_DISCONNECT;
+	digtable.pre_ap_connectstate = DIG_AP_DISCONNECT;
+
+	digtable.rssi_lowthresh = DM_DIG_THRESH_LOW;
+	digtable.rssi_highthresh = DM_DIG_THRESH_HIGH;
+
+	digtable.fa_lowthresh = DM_FALSEALARM_THRESH_LOW;
+	digtable.fa_highthresh = DM_FALSEALARM_THRESH_HIGH;
+
+	digtable.rssi_highpower_lowthresh = DM_DIG_HIGH_PWR_THRESH_LOW;
+	digtable.rssi_highpower_highthresh = DM_DIG_HIGH_PWR_THRESH_HIGH;
+
+	/* for dig debug rssi value */
+	digtable.rssi_val = 50;
+	digtable.backoff_val = DM_DIG_BACKOFF;
+	digtable.rx_gain_range_max = DM_DIG_MAX;
+
+	digtable.rx_gain_range_min = DM_DIG_MIN;
+
+	digtable.backoffval_range_max = DM_DIG_BACKOFF_MAX;
+	digtable.backoffval_range_min = DM_DIG_BACKOFF_MIN;
+}
+
+static void _rtl92s_dm_init_dynamic_txpower(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if ((hal_get_firmwareversion(rtlpriv) >= 60) &&
+	    (rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER))
+		rtlpriv->dm.dynamic_txpower_enable = true;
+	else
+		rtlpriv->dm.dynamic_txpower_enable = false;
+
+	rtlpriv->dm.last_dtp_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+	rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
+}
+
+void rtl92s_dm_init(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	rtlpriv->dm.dm_type = DM_TYPE_BYDRIVER;
+	rtlpriv->dm.undecorated_smoothed_pwdb = -1;
+
+	_rtl92s_dm_init_dynamic_txpower(hw);
+	rtl92s_dm_init_edca_turbo(hw);
+	_rtl92s_dm_init_rate_adaptive_mask(hw);
+	_rtl92s_dm_init_txpowertracking_thermalmeter(hw);
+	_rtl92s_dm_init_dig(hw);
+
+	rtl_write_dword(rtlpriv, WFM5, FW_CCA_CHK_ENABLE);
+}
+
+void rtl92s_dm_watchdog(struct ieee80211_hw *hw)
+{
+	_rtl92s_dm_check_edca_turbo(hw);
+	_rtl92s_dm_check_txpowertracking_thermalmeter(hw);
+	_rtl92s_dm_ctrl_initgain_byrssi(hw);
+	_rtl92s_dm_dynamic_txpower(hw);
+	_rtl92s_dm_refresh_rateadaptive_mask(hw);
+	_rtl92s_dm_switch_baseband_mrc(hw);
+}
+

drivers/net/wireless/rtlwifi/rtl8192se/dm.h

+/******************************************************************************
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * 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>
+ *
+ *****************************************************************************/
+#ifndef	__RTL_92S_DM_H__
+#define __RTL_92S_DM_H__
+
+struct dig_t {
+	u8 dig_enable_flag;
+	u8 dig_algorithm;
+	u8 dig_twoport_algorithm;
+	u8 dig_ext_port_stage;
+	u8 dig_dbgmode;
+	u8 dig_slgorithm_switch;
+
+	long rssi_lowthresh;
+	long rssi_highthresh;
+
+	u32 fa_lowthresh;
+	u32 fa_highthresh;
+
+	long rssi_highpower_lowthresh;
+	long rssi_highpower_highthresh;
+
+	u8 dig_state;
+	u8 dig_highpwrstate;
+	u8 cur_sta_connectstate;
+	u8 pre_sta_connectstate;
+	u8 cur_ap_connectstate;
+	u8 pre_ap_connectstate;
+
+	u8 cur_pd_thstate;
+	u8 pre_pd_thstate;
+	u8 cur_cs_ratiostate;
+	u8 pre_cs_ratiostate;
+
+	u32 pre_igvalue;
+	u32	cur_igvalue;
+
+	u8 backoff_enable_flag;
+	char backoff_val;
+	char backoffval_range_max;
+	char backoffval_range_min;
+	u8 rx_gain_range_max;
+	u8 rx_gain_range_min;
+
+	long rssi_val;
+};
+
+enum dm_dig_alg {
+	DIG_ALGO_BY_FALSE_ALARM = 0,
+	DIG_ALGO_BY_RSSI	= 1,
+	DIG_ALGO_BEFORE_CONNECT_BY_RSSI_AND_ALARM = 2,
+	DIG_ALGO_BY_TOW_PORT = 3,
+	DIG_ALGO_MAX
+};
+
+enum dm_dig_two_port_alg {
+	DIG_TWO_PORT_ALGO_RSSI = 0,
+	DIG_TWO_PORT_ALGO_FALSE_ALARM = 1,
+};
+
+enum dm_dig_dbg {
+	DM_DBG_OFF = 0,
+	DM_DBG_ON = 1,
+	DM_DBG_MAX
+};
+
+enum dm_dig_sta {
+	DM_STA_DIG_OFF = 0,
+	DM_STA_DIG_ON,
+	DM_STA_DIG_MAX
+};
+
+enum dm_dig_connect {
+	DIG_STA_DISCONNECT = 0,
+	DIG_STA_CONNECT = 1,
+	DIG_STA_BEFORE_CONNECT = 2,
+	DIG_AP_DISCONNECT = 3,
+	DIG_AP_CONNECT = 4,
+	DIG_AP_ADD_STATION = 5,
+	DIG_CONNECT_MAX
+};
+
+enum dm_dig_ext_port_alg {
+	DIG_EXT_PORT_STAGE_0 = 0,
+	DIG_EXT_PORT_STAGE_1 = 1,
+	DIG_EXT_PORT_STAGE_2 = 2,
+	DIG_EXT_PORT_STAGE_3 = 3,
+	DIG_EXT_PORT_STAGE_MAX = 4,
+};
+
+enum dm_ratr_sta {
+	DM_RATR_STA_HIGH = 0,
+	DM_RATR_STA_MIDDLEHIGH = 1,
+	DM_RATR_STA_MIDDLE = 2,
+	DM_RATR_STA_MIDDLELOW = 3,
+	DM_RATR_STA_LOW = 4,
+	DM_RATR_STA_ULTRALOW = 5,
+	DM_RATR_STA_MAX
+};
+
+#define DM_TYPE_BYFW			0
+#define DM_TYPE_BYDRIVER		1
+
+#define	TX_HIGH_PWR_LEVEL_NORMAL	0
+#define	TX_HIGH_PWR_LEVEL_LEVEL1	1
+#define	TX_HIGH_PWR_LEVEL_LEVEL2	2
+
+#define	HAL_DM_DIG_DISABLE		BIT(0)	/* Disable Dig */
+#define	HAL_DM_HIPWR_DISABLE		BIT(1)	/* Disable High Power */
+
+#define	TX_HIGHPWR_LEVEL_NORMAL		0
+#define	TX_HIGHPWR_LEVEL_NORMAL1	1
+#define	TX_HIGHPWR_LEVEL_NORMAL2	2
+
+#define	TX_POWER_NEAR_FIELD_THRESH_LVL2	74
+#define	TX_POWER_NEAR_FIELD_THRESH_LVL1	67
+
+#define DM_DIG_THRESH_HIGH		40
+#define DM_DIG_THRESH_LOW		35
+#define	DM_FALSEALARM_THRESH_LOW	40
+#define	DM_FALSEALARM_THRESH_HIGH	1000
+#define	DM_DIG_HIGH_PWR_THRESH_HIGH	75
+#define	DM_DIG_HIGH_PWR_THRESH_LOW	70
+#define	DM_DIG_BACKOFF			12
+#define	DM_DIG_MAX			0x3e
+#define	DM_DIG_MIN			0x1c
+#define	DM_DIG_MIN_Netcore		0x12
+#define	DM_DIG_BACKOFF_MAX		12
+#define	DM_DIG_BACKOFF_MIN		-4
+
+extern struct dig_t digtable;
+
+void rtl92s_dm_watchdog(struct ieee80211_hw *hw);
+void rtl92s_dm_init(struct ieee80211_hw *hw);
+void rtl92s_dm_init_edca_turbo(struct ieee80211_hw *hw);
+
+#endif
+