linux/drivers/net/wireless/realtek/rtlwifi/rtl8192se/dm.c
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   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2012  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 "../base.h"
  28#include "../core.h"
  29#include "reg.h"
  30#include "def.h"
  31#include "phy.h"
  32#include "dm.h"
  33#include "fw.h"
  34
  35static const u32 edca_setting_dl[PEER_MAX] = {
  36        0xa44f,         /* 0 UNKNOWN */
  37        0x5ea44f,       /* 1 REALTEK_90 */
  38        0x5ea44f,       /* 2 REALTEK_92SE */
  39        0xa630,         /* 3 BROAD      */
  40        0xa44f,         /* 4 RAL */
  41        0xa630,         /* 5 ATH */
  42        0xa630,         /* 6 CISCO */
  43        0xa42b,         /* 7 MARV */
  44};
  45
  46static const u32 edca_setting_dl_gmode[PEER_MAX] = {
  47        0x4322,         /* 0 UNKNOWN */
  48        0xa44f,         /* 1 REALTEK_90 */
  49        0x5ea44f,       /* 2 REALTEK_92SE */
  50        0xa42b,         /* 3 BROAD */
  51        0x5e4322,       /* 4 RAL */
  52        0x4322,         /* 5 ATH */
  53        0xa430,         /* 6 CISCO */
  54        0x5ea44f,       /* 7 MARV */
  55};
  56
  57static const u32 edca_setting_ul[PEER_MAX] = {
  58        0x5e4322,       /* 0 UNKNOWN */
  59        0xa44f,         /* 1 REALTEK_90 */
  60        0x5ea44f,       /* 2 REALTEK_92SE */
  61        0x5ea322,       /* 3 BROAD */
  62        0x5ea422,       /* 4 RAL */
  63        0x5ea322,       /* 5 ATH */
  64        0x3ea44f,       /* 6 CISCO */
  65        0x5ea44f,       /* 7 MARV */
  66};
  67
  68static void _rtl92s_dm_check_edca_turbo(struct ieee80211_hw *hw)
  69{
  70        struct rtl_priv *rtlpriv = rtl_priv(hw);
  71        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  72
  73        static u64 last_txok_cnt;
  74        static u64 last_rxok_cnt;
  75        u64 cur_txok_cnt = 0;
  76        u64 cur_rxok_cnt = 0;
  77
  78        u32 edca_be_ul = edca_setting_ul[mac->vendor];
  79        u32 edca_be_dl = edca_setting_dl[mac->vendor];
  80        u32 edca_gmode = edca_setting_dl_gmode[mac->vendor];
  81
  82        if (mac->link_state != MAC80211_LINKED) {
  83                rtlpriv->dm.current_turbo_edca = false;
  84                goto dm_checkedcaturbo_exit;
  85        }
  86
  87        if ((!rtlpriv->dm.is_any_nonbepkts) &&
  88            (!rtlpriv->dm.disable_framebursting)) {
  89                cur_txok_cnt = rtlpriv->stats.txbytesunicast - last_txok_cnt;
  90                cur_rxok_cnt = rtlpriv->stats.rxbytesunicast - last_rxok_cnt;
  91
  92                if (rtlpriv->phy.rf_type == RF_1T2R) {
  93                        if (cur_txok_cnt > 4 * cur_rxok_cnt) {
  94                                /* Uplink TP is present. */
  95                                if (rtlpriv->dm.is_cur_rdlstate ||
  96                                        !rtlpriv->dm.current_turbo_edca) {
  97                                        rtl_write_dword(rtlpriv, EDCAPARA_BE,
  98                                                        edca_be_ul);
  99                                        rtlpriv->dm.is_cur_rdlstate = false;
 100                                }
 101                        } else {/* Balance TP is present. */
 102                                if (!rtlpriv->dm.is_cur_rdlstate ||
 103                                        !rtlpriv->dm.current_turbo_edca) {
 104                                        if (mac->mode == WIRELESS_MODE_G ||
 105                                            mac->mode == WIRELESS_MODE_B)
 106                                                rtl_write_dword(rtlpriv,
 107                                                                EDCAPARA_BE,
 108                                                                edca_gmode);
 109                                        else
 110                                                rtl_write_dword(rtlpriv,
 111                                                                EDCAPARA_BE,
 112                                                                edca_be_dl);
 113                                        rtlpriv->dm.is_cur_rdlstate = true;
 114                                }
 115                        }
 116                        rtlpriv->dm.current_turbo_edca = true;
 117                } else {
 118                        if (cur_rxok_cnt > 4 * cur_txok_cnt) {
 119                                if (!rtlpriv->dm.is_cur_rdlstate ||
 120                                        !rtlpriv->dm.current_turbo_edca) {
 121                                        if (mac->mode == WIRELESS_MODE_G ||
 122                                            mac->mode == WIRELESS_MODE_B)
 123                                                rtl_write_dword(rtlpriv,
 124                                                                EDCAPARA_BE,
 125                                                                edca_gmode);
 126                                        else
 127                                                rtl_write_dword(rtlpriv,
 128                                                                EDCAPARA_BE,
 129                                                                edca_be_dl);
 130                                        rtlpriv->dm.is_cur_rdlstate = true;
 131                                }
 132                        } else {
 133                                if (rtlpriv->dm.is_cur_rdlstate ||
 134                                        !rtlpriv->dm.current_turbo_edca) {
 135                                        rtl_write_dword(rtlpriv, EDCAPARA_BE,
 136                                                        edca_be_ul);
 137                                        rtlpriv->dm.is_cur_rdlstate = false;
 138                                }
 139                        }
 140                        rtlpriv->dm.current_turbo_edca = true;
 141                }
 142        } else {
 143                if (rtlpriv->dm.current_turbo_edca) {
 144                        u8 tmp = AC0_BE;
 145                        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AC_PARAM,
 146                                                      &tmp);
 147                        rtlpriv->dm.current_turbo_edca = false;
 148                }
 149        }
 150
 151dm_checkedcaturbo_exit:
 152        rtlpriv->dm.is_any_nonbepkts = false;
 153        last_txok_cnt = rtlpriv->stats.txbytesunicast;
 154        last_rxok_cnt = rtlpriv->stats.rxbytesunicast;
 155}
 156
 157static void _rtl92s_dm_txpowertracking_callback_thermalmeter(
 158                                        struct ieee80211_hw *hw)
 159{
 160        struct rtl_priv *rtlpriv = rtl_priv(hw);
 161        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 162        u8 thermalvalue = 0;
 163        u32 fw_cmd = 0;
 164
 165        rtlpriv->dm.txpower_trackinginit = true;
 166
 167        thermalvalue = (u8)rtl_get_rfreg(hw, RF90_PATH_A, RF_T_METER, 0x1f);
 168
 169        RT_TRACE(rtlpriv, COMP_POWER_TRACKING, DBG_LOUD,
 170                 "Readback Thermal Meter = 0x%x pre thermal meter 0x%x eeprom_thermal meter 0x%x\n",
 171                 thermalvalue,
 172                 rtlpriv->dm.thermalvalue, rtlefuse->eeprom_thermalmeter);
 173
 174        if (thermalvalue) {
 175                rtlpriv->dm.thermalvalue = thermalvalue;
 176                if (hal_get_firmwareversion(rtlpriv) >= 0x35) {
 177                        rtl92s_phy_set_fw_cmd(hw, FW_CMD_TXPWR_TRACK_THERMAL);
 178                } else {
 179                        fw_cmd = (FW_TXPWR_TRACK_THERMAL |
 180                                 (rtlpriv->efuse.thermalmeter[0] << 8) |
 181                                 (thermalvalue << 16));
 182
 183                        RT_TRACE(rtlpriv, COMP_POWER_TRACKING, DBG_LOUD,
 184                                 "Write to FW Thermal Val = 0x%x\n", fw_cmd);
 185
 186                        rtl_write_dword(rtlpriv, WFM5, fw_cmd);
 187                        rtl92s_phy_chk_fwcmd_iodone(hw);
 188                }
 189        }
 190
 191        rtlpriv->dm.txpowercount = 0;
 192}
 193
 194static void _rtl92s_dm_check_txpowertracking_thermalmeter(
 195                                        struct ieee80211_hw *hw)
 196{
 197        struct rtl_priv *rtlpriv = rtl_priv(hw);
 198        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 199        u8 tx_power_checkcnt = 5;
 200
 201        /* 2T2R TP issue */
 202        if (rtlphy->rf_type == RF_2T2R)
 203                return;
 204
 205        if (!rtlpriv->dm.txpower_tracking)
 206                return;
 207
 208        if (rtlpriv->dm.txpowercount <= tx_power_checkcnt) {
 209                rtlpriv->dm.txpowercount++;
 210                return;
 211        }
 212
 213        if (!rtlpriv->dm.tm_trigger) {
 214                rtl_set_rfreg(hw, RF90_PATH_A, RF_T_METER,
 215                              RFREG_OFFSET_MASK, 0x60);
 216                rtlpriv->dm.tm_trigger = 1;
 217        } else {
 218                _rtl92s_dm_txpowertracking_callback_thermalmeter(hw);
 219                rtlpriv->dm.tm_trigger = 0;
 220        }
 221}
 222
 223static void _rtl92s_dm_refresh_rateadaptive_mask(struct ieee80211_hw *hw)
 224{
 225        struct rtl_priv *rtlpriv = rtl_priv(hw);
 226        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 227        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 228        struct rate_adaptive *ra = &(rtlpriv->ra);
 229        struct ieee80211_sta *sta = NULL;
 230        u32 low_rssi_thresh = 0;
 231        u32 middle_rssi_thresh = 0;
 232        u32 high_rssi_thresh = 0;
 233
 234        if (is_hal_stop(rtlhal))
 235                return;
 236
 237        if (!rtlpriv->dm.useramask)
 238                return;
 239
 240        if (hal_get_firmwareversion(rtlpriv) >= 61 &&
 241            !rtlpriv->dm.inform_fw_driverctrldm) {
 242                rtl92s_phy_set_fw_cmd(hw, FW_CMD_CTRL_DM_BY_DRIVER);
 243                rtlpriv->dm.inform_fw_driverctrldm = true;
 244        }
 245
 246        if ((mac->link_state == MAC80211_LINKED) &&
 247            (mac->opmode == NL80211_IFTYPE_STATION)) {
 248                switch (ra->pre_ratr_state) {
 249                case DM_RATR_STA_HIGH:
 250                        high_rssi_thresh = 40;
 251                        middle_rssi_thresh = 30;
 252                        low_rssi_thresh = 20;
 253                        break;
 254                case DM_RATR_STA_MIDDLE:
 255                        high_rssi_thresh = 44;
 256                        middle_rssi_thresh = 30;
 257                        low_rssi_thresh = 20;
 258                        break;
 259                case DM_RATR_STA_LOW:
 260                        high_rssi_thresh = 44;
 261                        middle_rssi_thresh = 34;
 262                        low_rssi_thresh = 20;
 263                        break;
 264                case DM_RATR_STA_ULTRALOW:
 265                        high_rssi_thresh = 44;
 266                        middle_rssi_thresh = 34;
 267                        low_rssi_thresh = 24;
 268                        break;
 269                default:
 270                        high_rssi_thresh = 44;
 271                        middle_rssi_thresh = 34;
 272                        low_rssi_thresh = 24;
 273                        break;
 274                }
 275
 276                if (rtlpriv->dm.undec_sm_pwdb > (long)high_rssi_thresh) {
 277                        ra->ratr_state = DM_RATR_STA_HIGH;
 278                } else if (rtlpriv->dm.undec_sm_pwdb >
 279                           (long)middle_rssi_thresh) {
 280                        ra->ratr_state = DM_RATR_STA_LOW;
 281                } else if (rtlpriv->dm.undec_sm_pwdb >
 282                           (long)low_rssi_thresh) {
 283                        ra->ratr_state = DM_RATR_STA_LOW;
 284                } else {
 285                        ra->ratr_state = DM_RATR_STA_ULTRALOW;
 286                }
 287
 288                if (ra->pre_ratr_state != ra->ratr_state) {
 289                        RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
 290                                 "RSSI = %ld RSSI_LEVEL = %d PreState = %d, CurState = %d\n",
 291                                 rtlpriv->dm.undec_sm_pwdb, ra->ratr_state,
 292                                 ra->pre_ratr_state, ra->ratr_state);
 293
 294                        rcu_read_lock();
 295                        sta = rtl_find_sta(hw, mac->bssid);
 296                        if (sta)
 297                                rtlpriv->cfg->ops->update_rate_tbl(hw, sta,
 298                                                           ra->ratr_state);
 299                        rcu_read_unlock();
 300
 301                        ra->pre_ratr_state = ra->ratr_state;
 302                }
 303        }
 304}
 305
 306static void _rtl92s_dm_switch_baseband_mrc(struct ieee80211_hw *hw)
 307{
 308        struct rtl_priv *rtlpriv = rtl_priv(hw);
 309        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 310        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 311        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 312        bool current_mrc;
 313        bool enable_mrc = true;
 314        long tmpentry_maxpwdb = 0;
 315        u8 rssi_a = 0;
 316        u8 rssi_b = 0;
 317
 318        if (is_hal_stop(rtlhal))
 319                return;
 320
 321        if ((rtlphy->rf_type == RF_1T1R) || (rtlphy->rf_type == RF_2T2R))
 322                return;
 323
 324        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_MRC, (u8 *)(&current_mrc));
 325
 326        if (mac->link_state >= MAC80211_LINKED) {
 327                if (rtlpriv->dm.undec_sm_pwdb > tmpentry_maxpwdb) {
 328                        rssi_a = rtlpriv->stats.rx_rssi_percentage[RF90_PATH_A];
 329                        rssi_b = rtlpriv->stats.rx_rssi_percentage[RF90_PATH_B];
 330                }
 331        }
 332
 333        /* MRC settings would NOT affect TP on Wireless B mode. */
 334        if (mac->mode != WIRELESS_MODE_B) {
 335                if ((rssi_a == 0) && (rssi_b == 0)) {
 336                        enable_mrc = true;
 337                } else if (rssi_b > 30) {
 338                        /* Turn on B-Path */
 339                        enable_mrc = true;
 340                } else if (rssi_b < 5) {
 341                        /* Turn off B-path  */
 342                        enable_mrc = false;
 343                /* Take care of RSSI differentiation. */
 344                } else if (rssi_a > 15 && (rssi_a >= rssi_b)) {
 345                        if ((rssi_a - rssi_b) > 15)
 346                                /* Turn off B-path  */
 347                                enable_mrc = false;
 348                        else if ((rssi_a - rssi_b) < 10)
 349                                /* Turn on B-Path */
 350                                enable_mrc = true;
 351                        else
 352                                enable_mrc = current_mrc;
 353                } else {
 354                        /* Turn on B-Path */
 355                        enable_mrc = true;
 356                }
 357        }
 358
 359        /* Update MRC settings if needed. */
 360        if (enable_mrc != current_mrc)
 361                rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_MRC,
 362                                              (u8 *)&enable_mrc);
 363
 364}
 365
 366void rtl92s_dm_init_edca_turbo(struct ieee80211_hw *hw)
 367{
 368        struct rtl_priv *rtlpriv = rtl_priv(hw);
 369
 370        rtlpriv->dm.current_turbo_edca = false;
 371        rtlpriv->dm.is_any_nonbepkts = false;
 372        rtlpriv->dm.is_cur_rdlstate = false;
 373}
 374
 375static void _rtl92s_dm_init_rate_adaptive_mask(struct ieee80211_hw *hw)
 376{
 377        struct rtl_priv *rtlpriv = rtl_priv(hw);
 378        struct rate_adaptive *ra = &(rtlpriv->ra);
 379
 380        ra->ratr_state = DM_RATR_STA_MAX;
 381        ra->pre_ratr_state = DM_RATR_STA_MAX;
 382
 383        if (rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER &&
 384            hal_get_firmwareversion(rtlpriv) >= 60)
 385                rtlpriv->dm.useramask = true;
 386        else
 387                rtlpriv->dm.useramask = false;
 388
 389        rtlpriv->dm.useramask = false;
 390        rtlpriv->dm.inform_fw_driverctrldm = false;
 391}
 392
 393static void _rtl92s_dm_init_txpowertracking_thermalmeter(
 394                                struct ieee80211_hw *hw)
 395{
 396        struct rtl_priv *rtlpriv = rtl_priv(hw);
 397
 398        rtlpriv->dm.txpower_tracking = true;
 399        rtlpriv->dm.txpowercount = 0;
 400        rtlpriv->dm.txpower_trackinginit = false;
 401}
 402
 403static void _rtl92s_dm_false_alarm_counter_statistics(struct ieee80211_hw *hw)
 404{
 405        struct rtl_priv *rtlpriv = rtl_priv(hw);
 406        struct false_alarm_statistics *falsealm_cnt = &(rtlpriv->falsealm_cnt);
 407        u32 ret_value;
 408
 409        ret_value = rtl_get_bbreg(hw, ROFDM_PHYCOUNTER1, MASKDWORD);
 410        falsealm_cnt->cnt_parity_fail = ((ret_value & 0xffff0000) >> 16);
 411
 412        ret_value = rtl_get_bbreg(hw, ROFDM_PHYCOUNTER2, MASKDWORD);
 413        falsealm_cnt->cnt_rate_illegal = (ret_value & 0xffff);
 414        falsealm_cnt->cnt_crc8_fail = ((ret_value & 0xffff0000) >> 16);
 415        ret_value = rtl_get_bbreg(hw, ROFDM_PHYCOUNTER3, MASKDWORD);
 416        falsealm_cnt->cnt_mcs_fail = (ret_value & 0xffff);
 417
 418        falsealm_cnt->cnt_ofdm_fail = falsealm_cnt->cnt_parity_fail +
 419                falsealm_cnt->cnt_rate_illegal + falsealm_cnt->cnt_crc8_fail +
 420                falsealm_cnt->cnt_mcs_fail;
 421
 422        /* read CCK false alarm */
 423        ret_value = rtl_get_bbreg(hw, 0xc64, MASKDWORD);
 424        falsealm_cnt->cnt_cck_fail = (ret_value & 0xffff);
 425        falsealm_cnt->cnt_all = falsealm_cnt->cnt_ofdm_fail +
 426                falsealm_cnt->cnt_cck_fail;
 427}
 428
 429static void rtl92s_backoff_enable_flag(struct ieee80211_hw *hw)
 430{
 431        struct rtl_priv *rtlpriv = rtl_priv(hw);
 432        struct dig_t *digtable = &rtlpriv->dm_digtable;
 433        struct false_alarm_statistics *falsealm_cnt = &(rtlpriv->falsealm_cnt);
 434
 435        if (falsealm_cnt->cnt_all > digtable->fa_highthresh) {
 436                if ((digtable->back_val - 6) <
 437                        digtable->backoffval_range_min)
 438                        digtable->back_val = digtable->backoffval_range_min;
 439                else
 440                        digtable->back_val -= 6;
 441        } else if (falsealm_cnt->cnt_all < digtable->fa_lowthresh) {
 442                if ((digtable->back_val + 6) >
 443                        digtable->backoffval_range_max)
 444                        digtable->back_val =
 445                                 digtable->backoffval_range_max;
 446                else
 447                        digtable->back_val += 6;
 448        }
 449}
 450
 451static void _rtl92s_dm_initial_gain_sta_beforeconnect(struct ieee80211_hw *hw)
 452{
 453        struct rtl_priv *rtlpriv = rtl_priv(hw);
 454        struct dig_t *digtable = &rtlpriv->dm_digtable;
 455        struct false_alarm_statistics *falsealm_cnt = &(rtlpriv->falsealm_cnt);
 456        static u8 initialized, force_write;
 457        u8 initial_gain = 0;
 458
 459        if ((digtable->pre_sta_cstate == digtable->cur_sta_cstate) ||
 460            (digtable->cur_sta_cstate == DIG_STA_BEFORE_CONNECT)) {
 461                if (digtable->cur_sta_cstate == DIG_STA_BEFORE_CONNECT) {
 462                        if (rtlpriv->psc.rfpwr_state != ERFON)
 463                                return;
 464
 465                        if (digtable->backoff_enable_flag)
 466                                rtl92s_backoff_enable_flag(hw);
 467                        else
 468                                digtable->back_val = DM_DIG_BACKOFF_MAX;
 469
 470                        if ((digtable->rssi_val + 10 - digtable->back_val) >
 471                                digtable->rx_gain_max)
 472                                digtable->cur_igvalue =
 473                                                digtable->rx_gain_max;
 474                        else if ((digtable->rssi_val + 10 - digtable->back_val)
 475                                 < digtable->rx_gain_min)
 476                                digtable->cur_igvalue =
 477                                                digtable->rx_gain_min;
 478                        else
 479                                digtable->cur_igvalue = digtable->rssi_val + 10
 480                                        - digtable->back_val;
 481
 482                        if (falsealm_cnt->cnt_all > 10000)
 483                                digtable->cur_igvalue =
 484                                         (digtable->cur_igvalue > 0x33) ?
 485                                         digtable->cur_igvalue : 0x33;
 486
 487                        if (falsealm_cnt->cnt_all > 16000)
 488                                digtable->cur_igvalue =
 489                                                 digtable->rx_gain_max;
 490                /* connected -> connected or disconnected -> disconnected  */
 491                } else {
 492                        /* Firmware control DIG, do nothing in driver dm */
 493                        return;
 494                }
 495                /* disconnected -> connected or connected ->
 496                 * disconnected or beforeconnect->(dis)connected */
 497        } else {
 498                /* Enable FW DIG */
 499                digtable->dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
 500                rtl92s_phy_set_fw_cmd(hw, FW_CMD_DIG_ENABLE);
 501
 502                digtable->back_val = DM_DIG_BACKOFF_MAX;
 503                digtable->cur_igvalue = rtlpriv->phy.default_initialgain[0];
 504                digtable->pre_igvalue = 0;
 505                return;
 506        }
 507
 508        /* Forced writing to prevent from fw-dig overwriting. */
 509        if (digtable->pre_igvalue != rtl_get_bbreg(hw, ROFDM0_XAAGCCORE1,
 510                                                  MASKBYTE0))
 511                force_write = 1;
 512
 513        if ((digtable->pre_igvalue != digtable->cur_igvalue) ||
 514            !initialized || force_write) {
 515                /* Disable FW DIG */
 516                rtl92s_phy_set_fw_cmd(hw, FW_CMD_DIG_DISABLE);
 517
 518                initial_gain = (u8)digtable->cur_igvalue;
 519
 520                /* Set initial gain. */
 521                rtl_set_bbreg(hw, ROFDM0_XAAGCCORE1, MASKBYTE0, initial_gain);
 522                rtl_set_bbreg(hw, ROFDM0_XBAGCCORE1, MASKBYTE0, initial_gain);
 523                digtable->pre_igvalue = digtable->cur_igvalue;
 524                initialized = 1;
 525                force_write = 0;
 526        }
 527}
 528
 529static void _rtl92s_dm_ctrl_initgain_bytwoport(struct ieee80211_hw *hw)
 530{
 531        struct rtl_priv *rtlpriv = rtl_priv(hw);
 532        struct dig_t *dig = &rtlpriv->dm_digtable;
 533
 534        if (rtlpriv->mac80211.act_scanning)
 535                return;
 536
 537        /* Decide the current status and if modify initial gain or not */
 538        if (rtlpriv->mac80211.link_state >= MAC80211_LINKED ||
 539            rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC)
 540                dig->cur_sta_cstate = DIG_STA_CONNECT;
 541        else
 542                dig->cur_sta_cstate = DIG_STA_DISCONNECT;
 543
 544        dig->rssi_val = rtlpriv->dm.undec_sm_pwdb;
 545
 546        /* Change dig mode to rssi */
 547        if (dig->cur_sta_cstate != DIG_STA_DISCONNECT) {
 548                if (dig->dig_twoport_algorithm ==
 549                    DIG_TWO_PORT_ALGO_FALSE_ALARM) {
 550                        dig->dig_twoport_algorithm = DIG_TWO_PORT_ALGO_RSSI;
 551                        rtl92s_phy_set_fw_cmd(hw, FW_CMD_DIG_MODE_SS);
 552                }
 553        }
 554
 555        _rtl92s_dm_false_alarm_counter_statistics(hw);
 556        _rtl92s_dm_initial_gain_sta_beforeconnect(hw);
 557
 558        dig->pre_sta_cstate = dig->cur_sta_cstate;
 559}
 560
 561static void _rtl92s_dm_ctrl_initgain_byrssi(struct ieee80211_hw *hw)
 562{
 563        struct rtl_priv *rtlpriv = rtl_priv(hw);
 564        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 565        struct dig_t *digtable = &rtlpriv->dm_digtable;
 566
 567        /* 2T2R TP issue */
 568        if (rtlphy->rf_type == RF_2T2R)
 569                return;
 570
 571        if (!rtlpriv->dm.dm_initialgain_enable)
 572                return;
 573
 574        if (digtable->dig_enable_flag == false)
 575                return;
 576
 577        _rtl92s_dm_ctrl_initgain_bytwoport(hw);
 578}
 579
 580static void _rtl92s_dm_dynamic_txpower(struct ieee80211_hw *hw)
 581{
 582        struct rtl_priv *rtlpriv = rtl_priv(hw);
 583        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 584        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 585        long undec_sm_pwdb;
 586        long txpwr_threshold_lv1, txpwr_threshold_lv2;
 587
 588        /* 2T2R TP issue */
 589        if (rtlphy->rf_type == RF_2T2R)
 590                return;
 591
 592        if (!rtlpriv->dm.dynamic_txpower_enable ||
 593            rtlpriv->dm.dm_flag & HAL_DM_HIPWR_DISABLE) {
 594                rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 595                return;
 596        }
 597
 598        if ((mac->link_state < MAC80211_LINKED) &&
 599            (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
 600                RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
 601                         "Not connected to any\n");
 602
 603                rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 604
 605                rtlpriv->dm.last_dtp_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 606                return;
 607        }
 608
 609        if (mac->link_state >= MAC80211_LINKED) {
 610                if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 611                        undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
 612                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 613                                 "AP Client PWDB = 0x%lx\n",
 614                                 undec_sm_pwdb);
 615                } else {
 616                        undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
 617                        RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 618                                 "STA Default Port PWDB = 0x%lx\n",
 619                                 undec_sm_pwdb);
 620                }
 621        } else {
 622                undec_sm_pwdb = rtlpriv->dm.entry_min_undec_sm_pwdb;
 623
 624                RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
 625                         "AP Ext Port PWDB = 0x%lx\n",
 626                         undec_sm_pwdb);
 627        }
 628
 629        txpwr_threshold_lv2 = TX_POWER_NEAR_FIELD_THRESH_LVL2;
 630        txpwr_threshold_lv1 = TX_POWER_NEAR_FIELD_THRESH_LVL1;
 631
 632        if (rtl_get_bbreg(hw, 0xc90, MASKBYTE0) == 1)
 633                rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 634        else if (undec_sm_pwdb >= txpwr_threshold_lv2)
 635                rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL2;
 636        else if ((undec_sm_pwdb < (txpwr_threshold_lv2 - 3)) &&
 637                (undec_sm_pwdb >= txpwr_threshold_lv1))
 638                rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL1;
 639        else if (undec_sm_pwdb < (txpwr_threshold_lv1 - 3))
 640                rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 641
 642        if ((rtlpriv->dm.dynamic_txhighpower_lvl != rtlpriv->dm.last_dtp_lvl))
 643                rtl92s_phy_set_txpower(hw, rtlphy->current_channel);
 644
 645        rtlpriv->dm.last_dtp_lvl = rtlpriv->dm.dynamic_txhighpower_lvl;
 646}
 647
 648static void _rtl92s_dm_init_dig(struct ieee80211_hw *hw)
 649{
 650        struct rtl_priv *rtlpriv = rtl_priv(hw);
 651        struct dig_t *digtable = &rtlpriv->dm_digtable;
 652
 653        /* Disable DIG scheme now.*/
 654        digtable->dig_enable_flag = true;
 655        digtable->backoff_enable_flag = true;
 656
 657        if ((rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER) &&
 658            (hal_get_firmwareversion(rtlpriv) >= 0x3c))
 659                digtable->dig_algorithm = DIG_ALGO_BY_TOW_PORT;
 660        else
 661                digtable->dig_algorithm =
 662                         DIG_ALGO_BEFORE_CONNECT_BY_RSSI_AND_ALARM;
 663
 664        digtable->dig_twoport_algorithm = DIG_TWO_PORT_ALGO_RSSI;
 665        digtable->dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
 666        /* off=by real rssi value, on=by digtable->rssi_val for new dig */
 667        digtable->dig_dbgmode = DM_DBG_OFF;
 668        digtable->dig_slgorithm_switch = 0;
 669
 670        /* 2007/10/04 MH Define init gain threshol. */
 671        digtable->dig_state = DM_STA_DIG_MAX;
 672        digtable->dig_highpwrstate = DM_STA_DIG_MAX;
 673
 674        digtable->cur_sta_cstate = DIG_STA_DISCONNECT;
 675        digtable->pre_sta_cstate = DIG_STA_DISCONNECT;
 676        digtable->cur_ap_cstate = DIG_AP_DISCONNECT;
 677        digtable->pre_ap_cstate = DIG_AP_DISCONNECT;
 678
 679        digtable->rssi_lowthresh = DM_DIG_THRESH_LOW;
 680        digtable->rssi_highthresh = DM_DIG_THRESH_HIGH;
 681
 682        digtable->fa_lowthresh = DM_FALSEALARM_THRESH_LOW;
 683        digtable->fa_highthresh = DM_FALSEALARM_THRESH_HIGH;
 684
 685        digtable->rssi_highpower_lowthresh = DM_DIG_HIGH_PWR_THRESH_LOW;
 686        digtable->rssi_highpower_highthresh = DM_DIG_HIGH_PWR_THRESH_HIGH;
 687
 688        /* for dig debug rssi value */
 689        digtable->rssi_val = 50;
 690        digtable->back_val = DM_DIG_BACKOFF_MAX;
 691        digtable->rx_gain_max = DM_DIG_MAX;
 692
 693        digtable->rx_gain_min = DM_DIG_MIN;
 694
 695        digtable->backoffval_range_max = DM_DIG_BACKOFF_MAX;
 696        digtable->backoffval_range_min = DM_DIG_BACKOFF_MIN;
 697}
 698
 699static void _rtl92s_dm_init_dynamic_txpower(struct ieee80211_hw *hw)
 700{
 701        struct rtl_priv *rtlpriv = rtl_priv(hw);
 702
 703        if ((hal_get_firmwareversion(rtlpriv) >= 60) &&
 704            (rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER))
 705                rtlpriv->dm.dynamic_txpower_enable = true;
 706        else
 707                rtlpriv->dm.dynamic_txpower_enable = false;
 708
 709        rtlpriv->dm.last_dtp_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 710        rtlpriv->dm.dynamic_txhighpower_lvl = TX_HIGHPWR_LEVEL_NORMAL;
 711}
 712
 713void rtl92s_dm_init(struct ieee80211_hw *hw)
 714{
 715        struct rtl_priv *rtlpriv = rtl_priv(hw);
 716
 717        rtlpriv->dm.dm_type = DM_TYPE_BYDRIVER;
 718        rtlpriv->dm.undec_sm_pwdb = -1;
 719
 720        _rtl92s_dm_init_dynamic_txpower(hw);
 721        rtl92s_dm_init_edca_turbo(hw);
 722        _rtl92s_dm_init_rate_adaptive_mask(hw);
 723        _rtl92s_dm_init_txpowertracking_thermalmeter(hw);
 724        _rtl92s_dm_init_dig(hw);
 725
 726        rtl_write_dword(rtlpriv, WFM5, FW_CCA_CHK_ENABLE);
 727}
 728
 729void rtl92s_dm_watchdog(struct ieee80211_hw *hw)
 730{
 731        _rtl92s_dm_check_edca_turbo(hw);
 732        _rtl92s_dm_check_txpowertracking_thermalmeter(hw);
 733        _rtl92s_dm_ctrl_initgain_byrssi(hw);
 734        _rtl92s_dm_dynamic_txpower(hw);
 735        _rtl92s_dm_refresh_rateadaptive_mask(hw);
 736        _rtl92s_dm_switch_baseband_mrc(hw);
 737}
 738
 739