linux/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c
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   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2014  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 "../pci.h"
  29#include "../core.h"
  30#include "reg.h"
  31#include "def.h"
  32#include "phy.h"
  33#include "dm.h"
  34#include "fw.h"
  35#include "trx.h"
  36
  37static const u32 ofdmswing_table[OFDM_TABLE_SIZE] = {
  38        0x7f8001fe,             /* 0, +6.0dB */
  39        0x788001e2,             /* 1, +5.5dB */
  40        0x71c001c7,             /* 2, +5.0dB */
  41        0x6b8001ae,             /* 3, +4.5dB */
  42        0x65400195,             /* 4, +4.0dB */
  43        0x5fc0017f,             /* 5, +3.5dB */
  44        0x5a400169,             /* 6, +3.0dB */
  45        0x55400155,             /* 7, +2.5dB */
  46        0x50800142,             /* 8, +2.0dB */
  47        0x4c000130,             /* 9, +1.5dB */
  48        0x47c0011f,             /* 10, +1.0dB */
  49        0x43c0010f,             /* 11, +0.5dB */
  50        0x40000100,             /* 12, +0dB */
  51        0x3c8000f2,             /* 13, -0.5dB */
  52        0x390000e4,             /* 14, -1.0dB */
  53        0x35c000d7,             /* 15, -1.5dB */
  54        0x32c000cb,             /* 16, -2.0dB */
  55        0x300000c0,             /* 17, -2.5dB */
  56        0x2d4000b5,             /* 18, -3.0dB */
  57        0x2ac000ab,             /* 19, -3.5dB */
  58        0x288000a2,             /* 20, -4.0dB */
  59        0x26000098,             /* 21, -4.5dB */
  60        0x24000090,             /* 22, -5.0dB */
  61        0x22000088,             /* 23, -5.5dB */
  62        0x20000080,             /* 24, -6.0dB */
  63        0x1e400079,             /* 25, -6.5dB */
  64        0x1c800072,             /* 26, -7.0dB */
  65        0x1b00006c,             /* 27. -7.5dB */
  66        0x19800066,             /* 28, -8.0dB */
  67        0x18000060,             /* 29, -8.5dB */
  68        0x16c0005b,             /* 30, -9.0dB */
  69        0x15800056,             /* 31, -9.5dB */
  70        0x14400051,             /* 32, -10.0dB */
  71        0x1300004c,             /* 33, -10.5dB */
  72        0x12000048,             /* 34, -11.0dB */
  73        0x11000044,             /* 35, -11.5dB */
  74        0x10000040,             /* 36, -12.0dB */
  75        0x0f00003c,             /* 37, -12.5dB */
  76        0x0e400039,             /* 38, -13.0dB */
  77        0x0d800036,             /* 39, -13.5dB */
  78        0x0cc00033,             /* 40, -14.0dB */
  79        0x0c000030,             /* 41, -14.5dB */
  80        0x0b40002d,             /* 42, -15.0dB */
  81};
  82
  83static const u8 cckswing_table_ch1ch13[CCK_TABLE_SIZE][8] = {
  84        {0x36, 0x35, 0x2e, 0x25, 0x1c, 0x12, 0x09, 0x04}, /* 0, +0dB */
  85        {0x33, 0x32, 0x2b, 0x23, 0x1a, 0x11, 0x08, 0x04}, /* 1, -0.5dB */
  86        {0x30, 0x2f, 0x29, 0x21, 0x19, 0x10, 0x08, 0x03}, /* 2, -1.0dB */
  87        {0x2d, 0x2d, 0x27, 0x1f, 0x18, 0x0f, 0x08, 0x03}, /* 3, -1.5dB */
  88        {0x2b, 0x2a, 0x25, 0x1e, 0x16, 0x0e, 0x07, 0x03}, /* 4, -2.0dB */
  89        {0x28, 0x28, 0x22, 0x1c, 0x15, 0x0d, 0x07, 0x03}, /* 5, -2.5dB */
  90        {0x26, 0x25, 0x21, 0x1b, 0x14, 0x0d, 0x06, 0x03}, /* 6, -3.0dB */
  91        {0x24, 0x23, 0x1f, 0x19, 0x13, 0x0c, 0x06, 0x03}, /* 7, -3.5dB */
  92        {0x22, 0x21, 0x1d, 0x18, 0x11, 0x0b, 0x06, 0x02}, /* 8, -4.0dB */
  93        {0x20, 0x20, 0x1b, 0x16, 0x11, 0x08, 0x05, 0x02}, /* 9, -4.5dB */
  94        {0x1f, 0x1e, 0x1a, 0x15, 0x10, 0x0a, 0x05, 0x02}, /* 10, -5.0dB */
  95        {0x1d, 0x1c, 0x18, 0x14, 0x0f, 0x0a, 0x05, 0x02}, /* 11, -5.5dB */
  96        {0x1b, 0x1a, 0x17, 0x13, 0x0e, 0x09, 0x04, 0x02}, /* 12, -6.0dB */
  97        {0x1a, 0x19, 0x16, 0x12, 0x0d, 0x09, 0x04, 0x02}, /* 13, -6.5dB */
  98        {0x18, 0x17, 0x15, 0x11, 0x0c, 0x08, 0x04, 0x02}, /* 14, -7.0dB */
  99        {0x17, 0x16, 0x13, 0x10, 0x0c, 0x08, 0x04, 0x02}, /* 15, -7.5dB */
 100        {0x16, 0x15, 0x12, 0x0f, 0x0b, 0x07, 0x04, 0x01}, /* 16, -8.0dB */
 101        {0x14, 0x14, 0x11, 0x0e, 0x0b, 0x07, 0x03, 0x02}, /* 17, -8.5dB */
 102        {0x13, 0x13, 0x10, 0x0d, 0x0a, 0x06, 0x03, 0x01}, /* 18, -9.0dB */
 103        {0x12, 0x12, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01}, /* 19, -9.5dB */
 104        {0x11, 0x11, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01}, /* 20, -10.0dB */
 105        {0x10, 0x10, 0x0e, 0x0b, 0x08, 0x05, 0x03, 0x01}, /* 21, -10.5dB */
 106        {0x0f, 0x0f, 0x0d, 0x0b, 0x08, 0x05, 0x03, 0x01}, /* 22, -11.0dB */
 107        {0x0e, 0x0e, 0x0c, 0x0a, 0x08, 0x05, 0x02, 0x01}, /* 23, -11.5dB */
 108        {0x0d, 0x0d, 0x0c, 0x0a, 0x07, 0x05, 0x02, 0x01}, /* 24, -12.0dB */
 109        {0x0d, 0x0c, 0x0b, 0x09, 0x07, 0x04, 0x02, 0x01}, /* 25, -12.5dB */
 110        {0x0c, 0x0c, 0x0a, 0x09, 0x06, 0x04, 0x02, 0x01}, /* 26, -13.0dB */
 111        {0x0b, 0x0b, 0x0a, 0x08, 0x06, 0x04, 0x02, 0x01}, /* 27, -13.5dB */
 112        {0x0b, 0x0a, 0x09, 0x08, 0x06, 0x04, 0x02, 0x01}, /* 28, -14.0dB */
 113        {0x0a, 0x0a, 0x09, 0x07, 0x05, 0x03, 0x02, 0x01}, /* 29, -14.5dB */
 114        {0x0a, 0x09, 0x08, 0x07, 0x05, 0x03, 0x02, 0x01}, /* 30, -15.0dB */
 115        {0x09, 0x09, 0x08, 0x06, 0x05, 0x03, 0x01, 0x01}, /* 31, -15.5dB */
 116        {0x09, 0x08, 0x07, 0x06, 0x04, 0x03, 0x01, 0x01}  /* 32, -16.0dB */
 117};
 118
 119static const u8 cckswing_table_ch14[CCK_TABLE_SIZE][8] = {
 120        {0x36, 0x35, 0x2e, 0x1b, 0x00, 0x00, 0x00, 0x00}, /* 0, +0dB */
 121        {0x33, 0x32, 0x2b, 0x19, 0x00, 0x00, 0x00, 0x00}, /* 1, -0.5dB */
 122        {0x30, 0x2f, 0x29, 0x18, 0x00, 0x00, 0x00, 0x00}, /* 2, -1.0dB */
 123        {0x2d, 0x2d, 0x17, 0x17, 0x00, 0x00, 0x00, 0x00}, /* 3, -1.5dB */
 124        {0x2b, 0x2a, 0x25, 0x15, 0x00, 0x00, 0x00, 0x00}, /* 4, -2.0dB */
 125        {0x28, 0x28, 0x24, 0x14, 0x00, 0x00, 0x00, 0x00}, /* 5, -2.5dB */
 126        {0x26, 0x25, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00}, /* 6, -3.0dB */
 127        {0x24, 0x23, 0x1f, 0x12, 0x00, 0x00, 0x00, 0x00}, /* 7, -3.5dB */
 128        {0x22, 0x21, 0x1d, 0x11, 0x00, 0x00, 0x00, 0x00}, /* 8, -4.0dB */
 129        {0x20, 0x20, 0x1b, 0x10, 0x00, 0x00, 0x00, 0x00}, /* 9, -4.5dB */
 130        {0x1f, 0x1e, 0x1a, 0x0f, 0x00, 0x00, 0x00, 0x00}, /* 10, -5.0dB */
 131        {0x1d, 0x1c, 0x18, 0x0e, 0x00, 0x00, 0x00, 0x00}, /* 11, -5.5dB */
 132        {0x1b, 0x1a, 0x17, 0x0e, 0x00, 0x00, 0x00, 0x00}, /* 12, -6.0dB */
 133        {0x1a, 0x19, 0x16, 0x0d, 0x00, 0x00, 0x00, 0x00}, /* 13, -6.5dB */
 134        {0x18, 0x17, 0x15, 0x0c, 0x00, 0x00, 0x00, 0x00}, /* 14, -7.0dB */
 135        {0x17, 0x16, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x00}, /* 15, -7.5dB */
 136        {0x16, 0x15, 0x12, 0x0b, 0x00, 0x00, 0x00, 0x00}, /* 16, -8.0dB */
 137        {0x14, 0x14, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x00}, /* 17, -8.5dB */
 138        {0x13, 0x13, 0x10, 0x0a, 0x00, 0x00, 0x00, 0x00}, /* 18, -9.0dB */
 139        {0x12, 0x12, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00}, /* 19, -9.5dB */
 140        {0x11, 0x11, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00}, /* 20, -10.0dB */
 141        {0x10, 0x10, 0x0e, 0x08, 0x00, 0x00, 0x00, 0x00}, /* 21, -10.5dB */
 142        {0x0f, 0x0f, 0x0d, 0x08, 0x00, 0x00, 0x00, 0x00}, /* 22, -11.0dB */
 143        {0x0e, 0x0e, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00}, /* 23, -11.5dB */
 144        {0x0d, 0x0d, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00}, /* 24, -12.0dB */
 145        {0x0d, 0x0c, 0x0b, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 25, -12.5dB */
 146        {0x0c, 0x0c, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 26, -13.0dB */
 147        {0x0b, 0x0b, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 27, -13.5dB */
 148        {0x0b, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 28, -14.0dB */
 149        {0x0a, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 29, -14.5dB */
 150        {0x0a, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 30, -15.0dB */
 151        {0x09, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 31, -15.5dB */
 152        {0x09, 0x08, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00}  /* 32, -16.0dB */
 153};
 154
 155static void rtl92ee_dm_false_alarm_counter_statistics(struct ieee80211_hw *hw)
 156{
 157        u32 ret_value;
 158        struct rtl_priv *rtlpriv = rtl_priv(hw);
 159        struct false_alarm_statistics *falsealm_cnt = &rtlpriv->falsealm_cnt;
 160
 161        rtl_set_bbreg(hw, DM_REG_OFDM_FA_HOLDC_11N, BIT(31), 1);
 162        rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(31), 1);
 163
 164        ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE1_11N, MASKDWORD);
 165        falsealm_cnt->cnt_fast_fsync_fail = (ret_value & 0xffff);
 166        falsealm_cnt->cnt_sb_search_fail = ((ret_value & 0xffff0000) >> 16);
 167
 168        ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE2_11N, MASKDWORD);
 169        falsealm_cnt->cnt_ofdm_cca = (ret_value & 0xffff);
 170        falsealm_cnt->cnt_parity_fail = ((ret_value & 0xffff0000) >> 16);
 171
 172        ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE3_11N, MASKDWORD);
 173        falsealm_cnt->cnt_rate_illegal = (ret_value & 0xffff);
 174        falsealm_cnt->cnt_crc8_fail = ((ret_value & 0xffff0000) >> 16);
 175
 176        ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE4_11N, MASKDWORD);
 177        falsealm_cnt->cnt_mcs_fail = (ret_value & 0xffff);
 178
 179        falsealm_cnt->cnt_ofdm_fail = falsealm_cnt->cnt_parity_fail +
 180                                      falsealm_cnt->cnt_rate_illegal +
 181                                      falsealm_cnt->cnt_crc8_fail +
 182                                      falsealm_cnt->cnt_mcs_fail +
 183                                      falsealm_cnt->cnt_fast_fsync_fail +
 184                                      falsealm_cnt->cnt_sb_search_fail;
 185
 186        ret_value = rtl_get_bbreg(hw, DM_REG_SC_CNT_11N, MASKDWORD);
 187        falsealm_cnt->cnt_bw_lsc = (ret_value & 0xffff);
 188        falsealm_cnt->cnt_bw_usc = ((ret_value & 0xffff0000) >> 16);
 189
 190        rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(12), 1);
 191        rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(14), 1);
 192
 193        ret_value = rtl_get_bbreg(hw, DM_REG_CCK_FA_LSB_11N, MASKBYTE0);
 194        falsealm_cnt->cnt_cck_fail = ret_value;
 195
 196        ret_value = rtl_get_bbreg(hw, DM_REG_CCK_FA_MSB_11N, MASKBYTE3);
 197        falsealm_cnt->cnt_cck_fail += (ret_value & 0xff) << 8;
 198
 199        ret_value = rtl_get_bbreg(hw, DM_REG_CCK_CCA_CNT_11N, MASKDWORD);
 200        falsealm_cnt->cnt_cck_cca = ((ret_value & 0xff) << 8) |
 201                                    ((ret_value & 0xFF00) >> 8);
 202
 203        falsealm_cnt->cnt_all = falsealm_cnt->cnt_fast_fsync_fail +
 204                                falsealm_cnt->cnt_sb_search_fail +
 205                                falsealm_cnt->cnt_parity_fail +
 206                                falsealm_cnt->cnt_rate_illegal +
 207                                falsealm_cnt->cnt_crc8_fail +
 208                                falsealm_cnt->cnt_mcs_fail +
 209                                falsealm_cnt->cnt_cck_fail;
 210
 211        falsealm_cnt->cnt_cca_all = falsealm_cnt->cnt_ofdm_cca +
 212                                    falsealm_cnt->cnt_cck_cca;
 213
 214        /*reset false alarm counter registers*/
 215        rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTC_11N, BIT(31), 1);
 216        rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTC_11N, BIT(31), 0);
 217        rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(27), 1);
 218        rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(27), 0);
 219        /*update ofdm counter*/
 220        rtl_set_bbreg(hw, DM_REG_OFDM_FA_HOLDC_11N, BIT(31), 0);
 221        rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(31), 0);
 222        /*reset CCK CCA counter*/
 223        rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(13) | BIT(12), 0);
 224        rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(13) | BIT(12), 2);
 225        /*reset CCK FA counter*/
 226        rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(15) | BIT(14), 0);
 227        rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(15) | BIT(14), 2);
 228
 229        RT_TRACE(rtlpriv, COMP_DIG, DBG_TRACE,
 230                 "cnt_parity_fail = %d, cnt_rate_illegal = %d, cnt_crc8_fail = %d, cnt_mcs_fail = %d\n",
 231                  falsealm_cnt->cnt_parity_fail,
 232                  falsealm_cnt->cnt_rate_illegal,
 233                  falsealm_cnt->cnt_crc8_fail, falsealm_cnt->cnt_mcs_fail);
 234
 235        RT_TRACE(rtlpriv, COMP_DIG, DBG_TRACE,
 236                 "cnt_ofdm_fail = %x, cnt_cck_fail = %x, cnt_all = %x\n",
 237                  falsealm_cnt->cnt_ofdm_fail,
 238                  falsealm_cnt->cnt_cck_fail, falsealm_cnt->cnt_all);
 239}
 240
 241static void rtl92ee_dm_cck_packet_detection_thresh(struct ieee80211_hw *hw)
 242{
 243        struct rtl_priv *rtlpriv = rtl_priv(hw);
 244        struct dig_t *dm_dig = &rtlpriv->dm_digtable;
 245        u8 cur_cck_cca_thresh;
 246
 247        if (rtlpriv->mac80211.link_state >= MAC80211_LINKED) {
 248                if (dm_dig->rssi_val_min > 25) {
 249                        cur_cck_cca_thresh = 0xcd;
 250                } else if ((dm_dig->rssi_val_min <= 25) &&
 251                           (dm_dig->rssi_val_min > 10)) {
 252                        cur_cck_cca_thresh = 0x83;
 253                } else {
 254                        if (rtlpriv->falsealm_cnt.cnt_cck_fail > 1000)
 255                                cur_cck_cca_thresh = 0x83;
 256                        else
 257                                cur_cck_cca_thresh = 0x40;
 258                }
 259        } else {
 260                if (rtlpriv->falsealm_cnt.cnt_cck_fail > 1000)
 261                        cur_cck_cca_thresh = 0x83;
 262                else
 263                        cur_cck_cca_thresh = 0x40;
 264        }
 265        rtl92ee_dm_write_cck_cca_thres(hw, cur_cck_cca_thresh);
 266}
 267
 268static void rtl92ee_dm_dig(struct ieee80211_hw *hw)
 269{
 270        struct rtl_priv *rtlpriv = rtl_priv(hw);
 271        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 272        struct dig_t *dm_dig = &rtlpriv->dm_digtable;
 273        u8 dig_min_0, dig_maxofmin;
 274        bool bfirstconnect , bfirstdisconnect;
 275        u8 dm_dig_max, dm_dig_min;
 276        u8 current_igi = dm_dig->cur_igvalue;
 277        u8 offset;
 278
 279        /* AP,BT */
 280        if (mac->act_scanning)
 281                return;
 282
 283        dig_min_0 = dm_dig->dig_min_0;
 284        bfirstconnect = (mac->link_state >= MAC80211_LINKED) &&
 285                        !dm_dig->media_connect_0;
 286        bfirstdisconnect = (mac->link_state < MAC80211_LINKED) &&
 287                           dm_dig->media_connect_0;
 288
 289        dm_dig_max = 0x5a;
 290        dm_dig_min = DM_DIG_MIN;
 291        dig_maxofmin = DM_DIG_MAX_AP;
 292
 293        if (mac->link_state >= MAC80211_LINKED) {
 294                if ((dm_dig->rssi_val_min + 10) > dm_dig_max)
 295                        dm_dig->rx_gain_max = dm_dig_max;
 296                else if ((dm_dig->rssi_val_min + 10) < dm_dig_min)
 297                        dm_dig->rx_gain_max = dm_dig_min;
 298                else
 299                        dm_dig->rx_gain_max = dm_dig->rssi_val_min + 10;
 300
 301                if (rtlpriv->dm.one_entry_only) {
 302                        offset = 0;
 303                        if (dm_dig->rssi_val_min - offset < dm_dig_min)
 304                                dig_min_0 = dm_dig_min;
 305                        else if (dm_dig->rssi_val_min - offset >
 306                                 dig_maxofmin)
 307                                dig_min_0 = dig_maxofmin;
 308                        else
 309                                dig_min_0 = dm_dig->rssi_val_min - offset;
 310                } else {
 311                        dig_min_0 = dm_dig_min;
 312                }
 313
 314        } else {
 315                dm_dig->rx_gain_max = dm_dig_max;
 316                dig_min_0 = dm_dig_min;
 317                RT_TRACE(rtlpriv, COMP_DIG, DBG_LOUD, "no link\n");
 318        }
 319
 320        if (rtlpriv->falsealm_cnt.cnt_all > 10000) {
 321                if (dm_dig->large_fa_hit != 3)
 322                        dm_dig->large_fa_hit++;
 323                if (dm_dig->forbidden_igi < current_igi) {
 324                        dm_dig->forbidden_igi = current_igi;
 325                        dm_dig->large_fa_hit = 1;
 326                }
 327
 328                if (dm_dig->large_fa_hit >= 3) {
 329                        if (dm_dig->forbidden_igi + 1 > dm_dig->rx_gain_max)
 330                                dm_dig->rx_gain_min =
 331                                                dm_dig->rx_gain_max;
 332                        else
 333                                dm_dig->rx_gain_min =
 334                                                dm_dig->forbidden_igi + 1;
 335                        dm_dig->recover_cnt = 3600;
 336                }
 337        } else {
 338                if (dm_dig->recover_cnt != 0) {
 339                        dm_dig->recover_cnt--;
 340                } else {
 341                        if (dm_dig->large_fa_hit < 3) {
 342                                if ((dm_dig->forbidden_igi - 1) <
 343                                    dig_min_0) {
 344                                        dm_dig->forbidden_igi = dig_min_0;
 345                                        dm_dig->rx_gain_min =
 346                                                                dig_min_0;
 347                                } else {
 348                                        dm_dig->forbidden_igi--;
 349                                        dm_dig->rx_gain_min =
 350                                                dm_dig->forbidden_igi + 1;
 351                                }
 352                        } else {
 353                                dm_dig->large_fa_hit = 0;
 354                        }
 355                }
 356        }
 357
 358        if (rtlpriv->dm.dbginfo.num_qry_beacon_pkt < 5)
 359                dm_dig->rx_gain_min = dm_dig_min;
 360
 361        if (dm_dig->rx_gain_min > dm_dig->rx_gain_max)
 362                dm_dig->rx_gain_min = dm_dig->rx_gain_max;
 363
 364        if (mac->link_state >= MAC80211_LINKED) {
 365                if (bfirstconnect) {
 366                        if (dm_dig->rssi_val_min <= dig_maxofmin)
 367                                current_igi = dm_dig->rssi_val_min;
 368                        else
 369                                current_igi = dig_maxofmin;
 370
 371                        dm_dig->large_fa_hit = 0;
 372                } else {
 373                        if (rtlpriv->falsealm_cnt.cnt_all > DM_DIG_FA_TH2)
 374                                current_igi += 4;
 375                        else if (rtlpriv->falsealm_cnt.cnt_all > DM_DIG_FA_TH1)
 376                                current_igi += 2;
 377                        else if (rtlpriv->falsealm_cnt.cnt_all < DM_DIG_FA_TH0)
 378                                current_igi -= 2;
 379
 380                        if (rtlpriv->dm.dbginfo.num_qry_beacon_pkt < 5 &&
 381                            rtlpriv->falsealm_cnt.cnt_all < DM_DIG_FA_TH1)
 382                                current_igi = dm_dig->rx_gain_min;
 383                }
 384        } else {
 385                if (bfirstdisconnect) {
 386                        current_igi = dm_dig->rx_gain_min;
 387                } else {
 388                        if (rtlpriv->falsealm_cnt.cnt_all > 10000)
 389                                current_igi += 4;
 390                        else if (rtlpriv->falsealm_cnt.cnt_all > 8000)
 391                                current_igi += 2;
 392                        else if (rtlpriv->falsealm_cnt.cnt_all < 500)
 393                                current_igi -= 2;
 394                }
 395        }
 396
 397        if (current_igi > dm_dig->rx_gain_max)
 398                current_igi = dm_dig->rx_gain_max;
 399        if (current_igi < dm_dig->rx_gain_min)
 400                current_igi = dm_dig->rx_gain_min;
 401
 402        rtl92ee_dm_write_dig(hw , current_igi);
 403        dm_dig->media_connect_0 = ((mac->link_state >= MAC80211_LINKED) ?
 404                                   true : false);
 405        dm_dig->dig_min_0 = dig_min_0;
 406}
 407
 408void rtl92ee_dm_write_cck_cca_thres(struct ieee80211_hw *hw, u8 cur_thres)
 409{
 410        struct rtl_priv *rtlpriv = rtl_priv(hw);
 411        struct dig_t *dm_dig = &rtlpriv->dm_digtable;
 412
 413        if (dm_dig->cur_cck_cca_thres != cur_thres)
 414                rtl_write_byte(rtlpriv, DM_REG_CCK_CCA_11N, cur_thres);
 415
 416        dm_dig->pre_cck_cca_thres = dm_dig->cur_cck_cca_thres;
 417        dm_dig->cur_cck_cca_thres = cur_thres;
 418}
 419
 420void rtl92ee_dm_write_dig(struct ieee80211_hw *hw, u8 current_igi)
 421{
 422        struct rtl_priv *rtlpriv = rtl_priv(hw);
 423        struct dig_t *dm_dig = &rtlpriv->dm_digtable;
 424
 425        if (dm_dig->stop_dig)
 426                return;
 427
 428        if (dm_dig->cur_igvalue != current_igi) {
 429                rtl_set_bbreg(hw, ROFDM0_XAAGCCORE1, 0x7f, current_igi);
 430                if (rtlpriv->phy.rf_type != RF_1T1R)
 431                        rtl_set_bbreg(hw, ROFDM0_XBAGCCORE1, 0x7f, current_igi);
 432        }
 433        dm_dig->pre_igvalue = dm_dig->cur_igvalue;
 434        dm_dig->cur_igvalue = current_igi;
 435}
 436
 437static void rtl92ee_rssi_dump_to_register(struct ieee80211_hw *hw)
 438{
 439        struct rtl_priv *rtlpriv = rtl_priv(hw);
 440
 441        rtl_write_byte(rtlpriv, RA_RSSIDUMP,
 442                       rtlpriv->stats.rx_rssi_percentage[0]);
 443        rtl_write_byte(rtlpriv, RB_RSSIDUMP,
 444                       rtlpriv->stats.rx_rssi_percentage[1]);
 445        /*It seems the following values are not initialized.
 446          *According to Windows code,
 447          *these value will only be valid with JAGUAR chips
 448          */
 449        /* Rx EVM */
 450        rtl_write_byte(rtlpriv, RS1_RXEVMDUMP, rtlpriv->stats.rx_evm_dbm[0]);
 451        rtl_write_byte(rtlpriv, RS2_RXEVMDUMP, rtlpriv->stats.rx_evm_dbm[1]);
 452        /* Rx SNR */
 453        rtl_write_byte(rtlpriv, RA_RXSNRDUMP,
 454                       (u8)(rtlpriv->stats.rx_snr_db[0]));
 455        rtl_write_byte(rtlpriv, RB_RXSNRDUMP,
 456                       (u8)(rtlpriv->stats.rx_snr_db[1]));
 457        /* Rx Cfo_Short */
 458        rtl_write_word(rtlpriv, RA_CFOSHORTDUMP,
 459                       rtlpriv->stats.rx_cfo_short[0]);
 460        rtl_write_word(rtlpriv, RB_CFOSHORTDUMP,
 461                       rtlpriv->stats.rx_cfo_short[1]);
 462        /* Rx Cfo_Tail */
 463        rtl_write_word(rtlpriv, RA_CFOLONGDUMP, rtlpriv->stats.rx_cfo_tail[0]);
 464        rtl_write_word(rtlpriv, RB_CFOLONGDUMP, rtlpriv->stats.rx_cfo_tail[1]);
 465}
 466
 467static void rtl92ee_dm_find_minimum_rssi(struct ieee80211_hw *hw)
 468{
 469        struct rtl_priv *rtlpriv = rtl_priv(hw);
 470        struct dig_t *rtl_dm_dig = &rtlpriv->dm_digtable;
 471        struct rtl_mac *mac = rtl_mac(rtlpriv);
 472
 473        /* Determine the minimum RSSI  */
 474        if ((mac->link_state < MAC80211_LINKED) &&
 475            (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) {
 476                rtl_dm_dig->min_undec_pwdb_for_dm = 0;
 477                RT_TRACE(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD,
 478                         "Not connected to any\n");
 479        }
 480        if (mac->link_state >= MAC80211_LINKED) {
 481                if (mac->opmode == NL80211_IFTYPE_AP ||
 482                    mac->opmode == NL80211_IFTYPE_ADHOC) {
 483                        rtl_dm_dig->min_undec_pwdb_for_dm =
 484                                rtlpriv->dm.entry_min_undec_sm_pwdb;
 485                        RT_TRACE(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD,
 486                                 "AP Client PWDB = 0x%lx\n",
 487                                 rtlpriv->dm.entry_min_undec_sm_pwdb);
 488                } else {
 489                        rtl_dm_dig->min_undec_pwdb_for_dm =
 490                            rtlpriv->dm.undec_sm_pwdb;
 491                        RT_TRACE(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD,
 492                                 "STA Default Port PWDB = 0x%x\n",
 493                                 rtl_dm_dig->min_undec_pwdb_for_dm);
 494                }
 495        } else {
 496                rtl_dm_dig->min_undec_pwdb_for_dm =
 497                        rtlpriv->dm.entry_min_undec_sm_pwdb;
 498                RT_TRACE(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD,
 499                         "AP Ext Port or disconnect PWDB = 0x%x\n",
 500                         rtl_dm_dig->min_undec_pwdb_for_dm);
 501        }
 502        RT_TRACE(rtlpriv, COMP_DIG, DBG_LOUD,
 503                 "MinUndecoratedPWDBForDM =%d\n",
 504                 rtl_dm_dig->min_undec_pwdb_for_dm);
 505}
 506
 507static void rtl92ee_dm_check_rssi_monitor(struct ieee80211_hw *hw)
 508{
 509        struct rtl_priv *rtlpriv = rtl_priv(hw);
 510        struct dig_t *dm_dig = &rtlpriv->dm_digtable;
 511        struct rtl_mac *mac = rtl_mac(rtlpriv);
 512        struct rtl_dm *dm = rtl_dm(rtlpriv);
 513        struct rtl_sta_info *drv_priv;
 514        u8 h2c[4] = { 0 };
 515        long max = 0, min = 0xff;
 516        u8 i = 0;
 517
 518        if (mac->opmode == NL80211_IFTYPE_AP ||
 519            mac->opmode == NL80211_IFTYPE_ADHOC ||
 520            mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 521                /* AP & ADHOC & MESH */
 522                spin_lock_bh(&rtlpriv->locks.entry_list_lock);
 523                list_for_each_entry(drv_priv, &rtlpriv->entry_list, list) {
 524                        struct rssi_sta *stat = &drv_priv->rssi_stat;
 525
 526                        if (stat->undec_sm_pwdb < min)
 527                                min = stat->undec_sm_pwdb;
 528                        if (stat->undec_sm_pwdb > max)
 529                                max = stat->undec_sm_pwdb;
 530
 531                        h2c[3] = 0;
 532                        h2c[2] = (u8)(dm->undec_sm_pwdb & 0xFF);
 533                        h2c[1] = 0x20;
 534                        h2c[0] = ++i;
 535                        rtl92ee_fill_h2c_cmd(hw, H2C_92E_RSSI_REPORT, 4, h2c);
 536                }
 537                spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
 538
 539                /* If associated entry is found */
 540                if (max != 0) {
 541                        dm->entry_max_undec_sm_pwdb = max;
 542                        RTPRINT(rtlpriv, FDM, DM_PWDB,
 543                                "EntryMaxPWDB = 0x%lx(%ld)\n", max, max);
 544                } else {
 545                        dm->entry_max_undec_sm_pwdb = 0;
 546                }
 547                /* If associated entry is found */
 548                if (min != 0xff) {
 549                        dm->entry_min_undec_sm_pwdb = min;
 550                        RTPRINT(rtlpriv, FDM, DM_PWDB,
 551                                "EntryMinPWDB = 0x%lx(%ld)\n", min, min);
 552                } else {
 553                        dm->entry_min_undec_sm_pwdb = 0;
 554                }
 555        }
 556
 557        /* Indicate Rx signal strength to FW. */
 558        if (dm->useramask) {
 559                h2c[3] = 0;
 560                h2c[2] = (u8)(dm->undec_sm_pwdb & 0xFF);
 561                h2c[1] = 0x20;
 562                h2c[0] = 0;
 563                rtl92ee_fill_h2c_cmd(hw, H2C_92E_RSSI_REPORT, 4, h2c);
 564        } else {
 565                rtl_write_byte(rtlpriv, 0x4fe, dm->undec_sm_pwdb);
 566        }
 567        rtl92ee_rssi_dump_to_register(hw);
 568        rtl92ee_dm_find_minimum_rssi(hw);
 569        dm_dig->rssi_val_min = rtlpriv->dm_digtable.min_undec_pwdb_for_dm;
 570}
 571
 572static void rtl92ee_dm_init_primary_cca_check(struct ieee80211_hw *hw)
 573{
 574        struct rtl_priv *rtlpriv = rtl_priv(hw);
 575        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 576        struct dynamic_primary_cca *primarycca = &rtlpriv->primarycca;
 577
 578        rtlhal->rts_en = 0;
 579        primarycca->dup_rts_flag = 0;
 580        primarycca->intf_flag = 0;
 581        primarycca->intf_type = 0;
 582        primarycca->monitor_flag = 0;
 583        primarycca->ch_offset = 0;
 584        primarycca->mf_state = 0;
 585}
 586
 587static bool rtl92ee_dm_is_edca_turbo_disable(struct ieee80211_hw *hw)
 588{
 589        struct rtl_priv *rtlpriv = rtl_priv(hw);
 590
 591        if (rtlpriv->mac80211.mode == WIRELESS_MODE_B)
 592                return true;
 593
 594        return false;
 595}
 596
 597void rtl92ee_dm_init_edca_turbo(struct ieee80211_hw *hw)
 598{
 599        struct rtl_priv *rtlpriv = rtl_priv(hw);
 600
 601        rtlpriv->dm.current_turbo_edca = false;
 602        rtlpriv->dm.is_cur_rdlstate = false;
 603        rtlpriv->dm.is_any_nonbepkts = false;
 604}
 605
 606static void rtl92ee_dm_check_edca_turbo(struct ieee80211_hw *hw)
 607{
 608        struct rtl_priv *rtlpriv = rtl_priv(hw);
 609
 610        static u64 last_txok_cnt;
 611        static u64 last_rxok_cnt;
 612        u64 cur_txok_cnt = 0;
 613        u64 cur_rxok_cnt = 0;
 614        u32 edca_be_ul = 0x5ea42b;
 615        u32 edca_be_dl = 0x5ea42b; /*not sure*/
 616        u32 edca_be = 0x5ea42b;
 617        bool is_cur_rdlstate;
 618        bool b_edca_turbo_on = false;
 619
 620        if (rtlpriv->dm.dbginfo.num_non_be_pkt > 0x100)
 621                rtlpriv->dm.is_any_nonbepkts = true;
 622        rtlpriv->dm.dbginfo.num_non_be_pkt = 0;
 623
 624        cur_txok_cnt = rtlpriv->stats.txbytesunicast - last_txok_cnt;
 625        cur_rxok_cnt = rtlpriv->stats.rxbytesunicast - last_rxok_cnt;
 626
 627        /*b_bias_on_rx = false;*/
 628        b_edca_turbo_on = ((!rtlpriv->dm.is_any_nonbepkts) &&
 629                           (!rtlpriv->dm.disable_framebursting)) ?
 630                          true : false;
 631
 632        if (rtl92ee_dm_is_edca_turbo_disable(hw))
 633                goto check_exit;
 634
 635        if (b_edca_turbo_on) {
 636                is_cur_rdlstate = (cur_rxok_cnt > cur_txok_cnt * 4) ?
 637                                    true : false;
 638
 639                edca_be = is_cur_rdlstate ? edca_be_dl : edca_be_ul;
 640                rtl_write_dword(rtlpriv , REG_EDCA_BE_PARAM , edca_be);
 641                rtlpriv->dm.is_cur_rdlstate = is_cur_rdlstate;
 642                rtlpriv->dm.current_turbo_edca = true;
 643        } else {
 644                if (rtlpriv->dm.current_turbo_edca) {
 645                        u8 tmp = AC0_BE;
 646
 647                        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AC_PARAM,
 648                                                      (u8 *)(&tmp));
 649                }
 650                rtlpriv->dm.current_turbo_edca = false;
 651        }
 652
 653check_exit:
 654        rtlpriv->dm.is_any_nonbepkts = false;
 655        last_txok_cnt = rtlpriv->stats.txbytesunicast;
 656        last_rxok_cnt = rtlpriv->stats.rxbytesunicast;
 657}
 658
 659static void rtl92ee_dm_dynamic_edcca(struct ieee80211_hw *hw)
 660{
 661        struct rtl_priv *rtlpriv = rtl_priv(hw);
 662        u8 reg_c50 , reg_c58;
 663        bool fw_current_in_ps_mode = false;
 664
 665        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_FW_PSMODE_STATUS,
 666                                      (u8 *)(&fw_current_in_ps_mode));
 667        if (fw_current_in_ps_mode)
 668                return;
 669
 670        reg_c50 = rtl_get_bbreg(hw, ROFDM0_XAAGCCORE1, MASKBYTE0);
 671        reg_c58 = rtl_get_bbreg(hw, ROFDM0_XBAGCCORE1, MASKBYTE0);
 672
 673        if (reg_c50 > 0x28 && reg_c58 > 0x28) {
 674                if (!rtlpriv->rtlhal.pre_edcca_enable) {
 675                        rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD, 0x03);
 676                        rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD + 2, 0x00);
 677                        rtlpriv->rtlhal.pre_edcca_enable = true;
 678                }
 679        } else if (reg_c50 < 0x25 && reg_c58 < 0x25) {
 680                if (rtlpriv->rtlhal.pre_edcca_enable) {
 681                        rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD, 0x7f);
 682                        rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD + 2, 0x7f);
 683                        rtlpriv->rtlhal.pre_edcca_enable = false;
 684                }
 685        }
 686}
 687
 688static void rtl92ee_dm_adaptivity(struct ieee80211_hw *hw)
 689{
 690        rtl92ee_dm_dynamic_edcca(hw);
 691}
 692
 693static void rtl92ee_dm_write_dynamic_cca(struct ieee80211_hw *hw,
 694                                         u8 cur_mf_state)
 695{
 696        struct dynamic_primary_cca *primarycca = &rtl_priv(hw)->primarycca;
 697
 698        if (primarycca->mf_state != cur_mf_state)
 699                rtl_set_bbreg(hw, DM_REG_L1SBD_PD_CH_11N, BIT(8) | BIT(7),
 700                              cur_mf_state);
 701
 702        primarycca->mf_state = cur_mf_state;
 703}
 704
 705static void rtl92ee_dm_dynamic_primary_cca_ckeck(struct ieee80211_hw *hw)
 706{
 707        struct rtl_priv *rtlpriv = rtl_priv(hw);
 708        struct false_alarm_statistics *falsealm_cnt = &rtlpriv->falsealm_cnt;
 709        struct dynamic_primary_cca *primarycca = &rtlpriv->primarycca;
 710        bool is40mhz = false;
 711        u64 ofdm_cca, ofdm_fa, bw_usc_cnt, bw_lsc_cnt;
 712        u8 sec_ch_offset;
 713        u8 cur_mf_state;
 714        static u8 count_down = MONITOR_TIME;
 715
 716        ofdm_cca = falsealm_cnt->cnt_ofdm_cca;
 717        ofdm_fa = falsealm_cnt->cnt_ofdm_fail;
 718        bw_usc_cnt = falsealm_cnt->cnt_bw_usc;
 719        bw_lsc_cnt = falsealm_cnt->cnt_bw_lsc;
 720        is40mhz = rtlpriv->mac80211.bw_40;
 721        sec_ch_offset = rtlpriv->mac80211.cur_40_prime_sc;
 722        /* NIC: 2: sec is below,  1: sec is above */
 723
 724        if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) {
 725                cur_mf_state = MF_USC_LSC;
 726                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 727                return;
 728        }
 729
 730        if (rtlpriv->mac80211.link_state < MAC80211_LINKED)
 731                return;
 732
 733        if (is40mhz)
 734                return;
 735
 736        if (primarycca->pricca_flag == 0) {
 737                /* Primary channel is above
 738                 * NOTE: duplicate CTS can remove this condition
 739                 */
 740                if (sec_ch_offset == 2) {
 741                        if ((ofdm_cca > OFDMCCA_TH) &&
 742                            (bw_lsc_cnt > (bw_usc_cnt + BW_IND_BIAS)) &&
 743                            (ofdm_fa > (ofdm_cca >> 1))) {
 744                                primarycca->intf_type = 1;
 745                                primarycca->intf_flag = 1;
 746                                cur_mf_state = MF_USC;
 747                                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 748                                primarycca->pricca_flag = 1;
 749                        } else if ((ofdm_cca > OFDMCCA_TH) &&
 750                                   (bw_lsc_cnt > (bw_usc_cnt + BW_IND_BIAS)) &&
 751                                   (ofdm_fa < (ofdm_cca >> 1))) {
 752                                primarycca->intf_type = 2;
 753                                primarycca->intf_flag = 1;
 754                                cur_mf_state = MF_USC;
 755                                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 756                                primarycca->pricca_flag = 1;
 757                                primarycca->dup_rts_flag = 1;
 758                                rtlpriv->rtlhal.rts_en = 1;
 759                        } else {
 760                                primarycca->intf_type = 0;
 761                                primarycca->intf_flag = 0;
 762                                cur_mf_state = MF_USC_LSC;
 763                                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 764                                rtlpriv->rtlhal.rts_en = 0;
 765                                primarycca->dup_rts_flag = 0;
 766                        }
 767                } else if (sec_ch_offset == 1) {
 768                        if ((ofdm_cca > OFDMCCA_TH) &&
 769                            (bw_usc_cnt > (bw_lsc_cnt + BW_IND_BIAS)) &&
 770                            (ofdm_fa > (ofdm_cca >> 1))) {
 771                                primarycca->intf_type = 1;
 772                                primarycca->intf_flag = 1;
 773                                cur_mf_state = MF_LSC;
 774                                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 775                                primarycca->pricca_flag = 1;
 776                        } else if ((ofdm_cca > OFDMCCA_TH) &&
 777                                   (bw_usc_cnt > (bw_lsc_cnt + BW_IND_BIAS)) &&
 778                                   (ofdm_fa < (ofdm_cca >> 1))) {
 779                                primarycca->intf_type = 2;
 780                                primarycca->intf_flag = 1;
 781                                cur_mf_state = MF_LSC;
 782                                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 783                                primarycca->pricca_flag = 1;
 784                                primarycca->dup_rts_flag = 1;
 785                                rtlpriv->rtlhal.rts_en = 1;
 786                        } else {
 787                                primarycca->intf_type = 0;
 788                                primarycca->intf_flag = 0;
 789                                cur_mf_state = MF_USC_LSC;
 790                                rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 791                                rtlpriv->rtlhal.rts_en = 0;
 792                                primarycca->dup_rts_flag = 0;
 793                        }
 794                }
 795        } else {/* PrimaryCCA->PriCCA_flag==1 */
 796                count_down--;
 797                if (count_down == 0) {
 798                        count_down = MONITOR_TIME;
 799                        primarycca->pricca_flag = 0;
 800                        cur_mf_state = MF_USC_LSC;
 801                        /* default */
 802                        rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state);
 803                        rtlpriv->rtlhal.rts_en = 0;
 804                        primarycca->dup_rts_flag = 0;
 805                        primarycca->intf_type = 0;
 806                        primarycca->intf_flag = 0;
 807                }
 808        }
 809}
 810
 811static void rtl92ee_dm_dynamic_atc_switch(struct ieee80211_hw *hw)
 812{
 813        struct rtl_priv *rtlpriv = rtl_priv(hw);
 814        struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw));
 815        u8 crystal_cap;
 816        u32 packet_count;
 817        int cfo_khz_a , cfo_khz_b , cfo_ave = 0, adjust_xtal = 0;
 818        int cfo_ave_diff;
 819
 820        if (rtlpriv->mac80211.link_state < MAC80211_LINKED) {
 821                if (rtldm->atc_status == ATC_STATUS_OFF) {
 822                        rtl_set_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11),
 823                                      ATC_STATUS_ON);
 824                        rtldm->atc_status = ATC_STATUS_ON;
 825                }
 826                /* Disable CFO tracking for BT */
 827                if (rtlpriv->cfg->ops->get_btc_status()) {
 828                        if (!rtlpriv->btcoexist.btc_ops->
 829                            btc_is_bt_disabled(rtlpriv)) {
 830                                RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
 831                                         "odm_DynamicATCSwitch(): Disable CFO tracking for BT!!\n");
 832                                return;
 833                        }
 834                }
 835                /* Reset Crystal Cap */
 836                if (rtldm->crystal_cap != rtlpriv->efuse.crystalcap) {
 837                        rtldm->crystal_cap = rtlpriv->efuse.crystalcap;
 838                        crystal_cap = rtldm->crystal_cap & 0x3f;
 839                        rtl_set_bbreg(hw, REG_MAC_PHY_CTRL, 0xFFF000,
 840                                      (crystal_cap | (crystal_cap << 6)));
 841                }
 842        } else {
 843                cfo_khz_a = (int)(rtldm->cfo_tail[0] * 3125) / 1280;
 844                cfo_khz_b = (int)(rtldm->cfo_tail[1] * 3125) / 1280;
 845                packet_count = rtldm->packet_count;
 846
 847                if (packet_count == rtldm->packet_count_pre)
 848                        return;
 849
 850                rtldm->packet_count_pre = packet_count;
 851
 852                if (rtlpriv->phy.rf_type == RF_1T1R)
 853                        cfo_ave = cfo_khz_a;
 854                else
 855                        cfo_ave = (int)(cfo_khz_a + cfo_khz_b) >> 1;
 856
 857                cfo_ave_diff = (rtldm->cfo_ave_pre >= cfo_ave) ?
 858                               (rtldm->cfo_ave_pre - cfo_ave) :
 859                               (cfo_ave - rtldm->cfo_ave_pre);
 860
 861                if (cfo_ave_diff > 20 && rtldm->large_cfo_hit == 0) {
 862                        rtldm->large_cfo_hit = 1;
 863                        return;
 864                }
 865                rtldm->large_cfo_hit = 0;
 866
 867                rtldm->cfo_ave_pre = cfo_ave;
 868
 869                if (cfo_ave >= -rtldm->cfo_threshold &&
 870                    cfo_ave <= rtldm->cfo_threshold && rtldm->is_freeze == 0) {
 871                        if (rtldm->cfo_threshold == CFO_THRESHOLD_XTAL) {
 872                                rtldm->cfo_threshold = CFO_THRESHOLD_XTAL + 10;
 873                                rtldm->is_freeze = 1;
 874                        } else {
 875                                rtldm->cfo_threshold = CFO_THRESHOLD_XTAL;
 876                        }
 877                }
 878
 879                if (cfo_ave > rtldm->cfo_threshold && rtldm->crystal_cap < 0x3f)
 880                        adjust_xtal = ((cfo_ave - CFO_THRESHOLD_XTAL) >> 2) + 1;
 881                else if ((cfo_ave < -rtlpriv->dm.cfo_threshold) &&
 882                         rtlpriv->dm.crystal_cap > 0)
 883                        adjust_xtal = ((cfo_ave + CFO_THRESHOLD_XTAL) >> 2) - 1;
 884
 885                if (adjust_xtal != 0) {
 886                        rtldm->is_freeze = 0;
 887                        rtldm->crystal_cap += adjust_xtal;
 888
 889                        if (rtldm->crystal_cap > 0x3f)
 890                                rtldm->crystal_cap = 0x3f;
 891                        else if (rtldm->crystal_cap < 0)
 892                                rtldm->crystal_cap = 0;
 893
 894                        crystal_cap = rtldm->crystal_cap & 0x3f;
 895                        rtl_set_bbreg(hw, REG_MAC_PHY_CTRL, 0xFFF000,
 896                                      (crystal_cap | (crystal_cap << 6)));
 897                }
 898
 899                if (cfo_ave < CFO_THRESHOLD_ATC &&
 900                    cfo_ave > -CFO_THRESHOLD_ATC) {
 901                        if (rtldm->atc_status == ATC_STATUS_ON) {
 902                                rtl_set_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11),
 903                                              ATC_STATUS_OFF);
 904                                rtldm->atc_status = ATC_STATUS_OFF;
 905                        }
 906                } else {
 907                        if (rtldm->atc_status == ATC_STATUS_OFF) {
 908                                rtl_set_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11),
 909                                              ATC_STATUS_ON);
 910                                rtldm->atc_status = ATC_STATUS_ON;
 911                        }
 912                }
 913        }
 914}
 915
 916static void rtl92ee_dm_init_txpower_tracking(struct ieee80211_hw *hw)
 917{
 918        struct rtl_priv *rtlpriv = rtl_priv(hw);
 919        struct rtl_dm *dm = rtl_dm(rtlpriv);
 920        u8 path;
 921
 922        dm->txpower_tracking = true;
 923        dm->default_ofdm_index = 30;
 924        dm->default_cck_index = 20;
 925
 926        dm->swing_idx_cck_base = dm->default_cck_index;
 927        dm->cck_index = dm->default_cck_index;
 928
 929        for (path = RF90_PATH_A; path < MAX_RF_PATH; path++) {
 930                dm->swing_idx_ofdm_base[path] = dm->default_ofdm_index;
 931                dm->ofdm_index[path] = dm->default_ofdm_index;
 932                dm->delta_power_index[path] = 0;
 933                dm->delta_power_index_last[path] = 0;
 934                dm->power_index_offset[path] = 0;
 935        }
 936}
 937
 938void rtl92ee_dm_init_rate_adaptive_mask(struct ieee80211_hw *hw)
 939{
 940        struct rtl_priv *rtlpriv = rtl_priv(hw);
 941        struct rate_adaptive *p_ra = &rtlpriv->ra;
 942
 943        p_ra->ratr_state = DM_RATR_STA_INIT;
 944        p_ra->pre_ratr_state = DM_RATR_STA_INIT;
 945
 946        if (rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER)
 947                rtlpriv->dm.useramask = true;
 948        else
 949                rtlpriv->dm.useramask = false;
 950
 951        p_ra->ldpc_thres = 35;
 952        p_ra->use_ldpc = false;
 953        p_ra->high_rssi_thresh_for_ra = 50;
 954        p_ra->low_rssi_thresh_for_ra40m = 20;
 955}
 956
 957static bool _rtl92ee_dm_ra_state_check(struct ieee80211_hw *hw,
 958                                       s32 rssi, u8 *ratr_state)
 959{
 960        struct rtl_priv *rtlpriv = rtl_priv(hw);
 961        struct rate_adaptive *p_ra = &rtlpriv->ra;
 962        const u8 go_up_gap = 5;
 963        u32 high_rssithresh_for_ra = p_ra->high_rssi_thresh_for_ra;
 964        u32 low_rssithresh_for_ra = p_ra->low_rssi_thresh_for_ra40m;
 965        u8 state;
 966
 967        /* Threshold Adjustment:
 968         * when RSSI state trends to go up one or two levels,
 969         * make sure RSSI is high enough.
 970         * Here GoUpGap is added to solve
 971         * the boundary's level alternation issue.
 972         */
 973        switch (*ratr_state) {
 974        case DM_RATR_STA_INIT:
 975        case DM_RATR_STA_HIGH:
 976                break;
 977        case DM_RATR_STA_MIDDLE:
 978                high_rssithresh_for_ra += go_up_gap;
 979                break;
 980        case DM_RATR_STA_LOW:
 981                high_rssithresh_for_ra += go_up_gap;
 982                low_rssithresh_for_ra += go_up_gap;
 983                break;
 984        default:
 985                RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG,
 986                         "wrong rssi level setting %d !\n", *ratr_state);
 987                break;
 988        }
 989
 990        /* Decide RATRState by RSSI. */
 991        if (rssi > high_rssithresh_for_ra)
 992                state = DM_RATR_STA_HIGH;
 993        else if (rssi > low_rssithresh_for_ra)
 994                state = DM_RATR_STA_MIDDLE;
 995        else
 996                state = DM_RATR_STA_LOW;
 997
 998        if (*ratr_state != state) {
 999                *ratr_state = state;
1000                return true;
1001        }
1002
1003        return false;
1004}
1005
1006static void rtl92ee_dm_refresh_rate_adaptive_mask(struct ieee80211_hw *hw)
1007{
1008        struct rtl_priv *rtlpriv = rtl_priv(hw);
1009        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1010        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1011        struct rate_adaptive *p_ra = &rtlpriv->ra;
1012        struct ieee80211_sta *sta = NULL;
1013
1014        if (is_hal_stop(rtlhal)) {
1015                RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
1016                         "driver is going to unload\n");
1017                return;
1018        }
1019
1020        if (!rtlpriv->dm.useramask) {
1021                RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
1022                         "driver does not control rate adaptive mask\n");
1023                return;
1024        }
1025
1026        if (mac->link_state == MAC80211_LINKED &&
1027            mac->opmode == NL80211_IFTYPE_STATION) {
1028                if (rtlpriv->dm.undec_sm_pwdb < p_ra->ldpc_thres) {
1029                        p_ra->use_ldpc = true;
1030                        p_ra->lower_rts_rate = true;
1031                } else if (rtlpriv->dm.undec_sm_pwdb >
1032                           (p_ra->ldpc_thres - 5)) {
1033                        p_ra->use_ldpc = false;
1034                        p_ra->lower_rts_rate = false;
1035                }
1036                if (_rtl92ee_dm_ra_state_check(hw, rtlpriv->dm.undec_sm_pwdb,
1037                                               &p_ra->ratr_state)) {
1038                        rcu_read_lock();
1039                        sta = rtl_find_sta(hw, mac->bssid);
1040                        if (sta)
1041                                rtlpriv->cfg->ops->update_rate_tbl(hw, sta,
1042                                                              p_ra->ratr_state);
1043                        rcu_read_unlock();
1044
1045                        p_ra->pre_ratr_state = p_ra->ratr_state;
1046                }
1047        }
1048}
1049
1050static void rtl92ee_dm_init_dynamic_atc_switch(struct ieee80211_hw *hw)
1051{
1052        struct rtl_priv *rtlpriv = rtl_priv(hw);
1053
1054        rtlpriv->dm.crystal_cap = rtlpriv->efuse.crystalcap;
1055
1056        rtlpriv->dm.atc_status = rtl_get_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11));
1057        rtlpriv->dm.cfo_threshold = CFO_THRESHOLD_XTAL;
1058}
1059
1060void rtl92ee_dm_init(struct ieee80211_hw *hw)
1061{
1062        struct rtl_priv *rtlpriv = rtl_priv(hw);
1063        u32 cur_igvalue = rtl_get_bbreg(hw, DM_REG_IGI_A_11N, DM_BIT_IGI_11N);
1064
1065        rtlpriv->dm.dm_type = DM_TYPE_BYDRIVER;
1066
1067        rtl_dm_diginit(hw, cur_igvalue);
1068        rtl92ee_dm_init_rate_adaptive_mask(hw);
1069        rtl92ee_dm_init_primary_cca_check(hw);
1070        rtl92ee_dm_init_edca_turbo(hw);
1071        rtl92ee_dm_init_txpower_tracking(hw);
1072        rtl92ee_dm_init_dynamic_atc_switch(hw);
1073}
1074
1075static void rtl92ee_dm_common_info_self_update(struct ieee80211_hw *hw)
1076{
1077        struct rtl_priv *rtlpriv = rtl_priv(hw);
1078        struct rtl_sta_info *drv_priv;
1079        u8 cnt = 0;
1080
1081        rtlpriv->dm.one_entry_only = false;
1082
1083        if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_STATION &&
1084            rtlpriv->mac80211.link_state >= MAC80211_LINKED) {
1085                rtlpriv->dm.one_entry_only = true;
1086                return;
1087        }
1088
1089        if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP ||
1090            rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC ||
1091            rtlpriv->mac80211.opmode == NL80211_IFTYPE_MESH_POINT) {
1092                spin_lock_bh(&rtlpriv->locks.entry_list_lock);
1093                list_for_each_entry(drv_priv, &rtlpriv->entry_list, list) {
1094                        cnt++;
1095                }
1096                spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
1097
1098                if (cnt == 1)
1099                        rtlpriv->dm.one_entry_only = true;
1100        }
1101}
1102
1103void rtl92ee_dm_dynamic_arfb_select(struct ieee80211_hw *hw,
1104                                    u8 rate, bool collision_state)
1105{
1106        struct rtl_priv *rtlpriv = rtl_priv(hw);
1107
1108        if (rate >= DESC92C_RATEMCS8  && rate <= DESC92C_RATEMCS12) {
1109                if (collision_state == 1) {
1110                        if (rate == DESC92C_RATEMCS12) {
1111                                rtl_write_dword(rtlpriv, REG_DARFRC, 0x0);
1112                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1113                                                0x07060501);
1114                        } else if (rate == DESC92C_RATEMCS11) {
1115                                rtl_write_dword(rtlpriv, REG_DARFRC, 0x0);
1116                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1117                                                0x07070605);
1118                        } else if (rate == DESC92C_RATEMCS10) {
1119                                rtl_write_dword(rtlpriv, REG_DARFRC, 0x0);
1120                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1121                                                0x08080706);
1122                        } else if (rate == DESC92C_RATEMCS9) {
1123                                rtl_write_dword(rtlpriv, REG_DARFRC, 0x0);
1124                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1125                                                0x08080707);
1126                        } else {
1127                                rtl_write_dword(rtlpriv, REG_DARFRC, 0x0);
1128                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1129                                                0x09090808);
1130                        }
1131                } else {   /* collision_state == 0 */
1132                        if (rate == DESC92C_RATEMCS12) {
1133                                rtl_write_dword(rtlpriv, REG_DARFRC,
1134                                                0x05010000);
1135                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1136                                                0x09080706);
1137                        } else if (rate == DESC92C_RATEMCS11) {
1138                                rtl_write_dword(rtlpriv, REG_DARFRC,
1139                                                0x06050000);
1140                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1141                                                0x09080807);
1142                        } else if (rate == DESC92C_RATEMCS10) {
1143                                rtl_write_dword(rtlpriv, REG_DARFRC,
1144                                                0x07060000);
1145                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1146                                                0x0a090908);
1147                        } else if (rate == DESC92C_RATEMCS9) {
1148                                rtl_write_dword(rtlpriv, REG_DARFRC,
1149                                                0x07070000);
1150                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1151                                                0x0a090808);
1152                        } else {
1153                                rtl_write_dword(rtlpriv, REG_DARFRC,
1154                                                0x08080000);
1155                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1156                                                0x0b0a0909);
1157                        }
1158                }
1159        } else {  /* MCS13~MCS15,  1SS, G-mode */
1160                if (collision_state == 1) {
1161                        if (rate == DESC92C_RATEMCS15) {
1162                                rtl_write_dword(rtlpriv, REG_DARFRC,
1163                                                0x00000000);
1164                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1165                                                0x05040302);
1166                        } else if (rate == DESC92C_RATEMCS14) {
1167                                rtl_write_dword(rtlpriv, REG_DARFRC,
1168                                                0x00000000);
1169                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1170                                                0x06050302);
1171                        } else if (rate == DESC92C_RATEMCS13) {
1172                                rtl_write_dword(rtlpriv, REG_DARFRC,
1173                                                0x00000000);
1174                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1175                                                0x07060502);
1176                        } else {
1177                                rtl_write_dword(rtlpriv, REG_DARFRC,
1178                                                0x00000000);
1179                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1180                                                0x06050402);
1181                        }
1182                } else{   /* collision_state == 0 */
1183                        if (rate == DESC92C_RATEMCS15) {
1184                                rtl_write_dword(rtlpriv, REG_DARFRC,
1185                                                0x03020000);
1186                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1187                                                0x07060504);
1188                        } else if (rate == DESC92C_RATEMCS14) {
1189                                rtl_write_dword(rtlpriv, REG_DARFRC,
1190                                                0x03020000);
1191                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1192                                                0x08070605);
1193                        } else if (rate == DESC92C_RATEMCS13) {
1194                                rtl_write_dword(rtlpriv, REG_DARFRC,
1195                                                0x05020000);
1196                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1197                                                0x09080706);
1198                        } else {
1199                                rtl_write_dword(rtlpriv, REG_DARFRC,
1200                                                0x04020000);
1201                                rtl_write_dword(rtlpriv, REG_DARFRC + 4,
1202                                                0x08070605);
1203                        }
1204                }
1205        }
1206}
1207
1208void rtl92ee_dm_watchdog(struct ieee80211_hw *hw)
1209{
1210        struct rtl_priv *rtlpriv = rtl_priv(hw);
1211        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1212        bool fw_current_inpsmode = false;
1213        bool fw_ps_awake = true;
1214
1215        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_FW_PSMODE_STATUS,
1216                                      (u8 *)(&fw_current_inpsmode));
1217        rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_FWLPS_RF_ON,
1218                                      (u8 *)(&fw_ps_awake));
1219        if (ppsc->p2p_ps_info.p2p_ps_mode)
1220                fw_ps_awake = false;
1221
1222        spin_lock(&rtlpriv->locks.rf_ps_lock);
1223        if ((ppsc->rfpwr_state == ERFON) &&
1224            ((!fw_current_inpsmode) && fw_ps_awake) &&
1225            (!ppsc->rfchange_inprogress)) {
1226                rtl92ee_dm_common_info_self_update(hw);
1227                rtl92ee_dm_false_alarm_counter_statistics(hw);
1228                rtl92ee_dm_check_rssi_monitor(hw);
1229                rtl92ee_dm_dig(hw);
1230                rtl92ee_dm_adaptivity(hw);
1231                rtl92ee_dm_cck_packet_detection_thresh(hw);
1232                rtl92ee_dm_refresh_rate_adaptive_mask(hw);
1233                rtl92ee_dm_check_edca_turbo(hw);
1234                rtl92ee_dm_dynamic_atc_switch(hw);
1235                rtl92ee_dm_dynamic_primary_cca_ckeck(hw);
1236        }
1237        spin_unlock(&rtlpriv->locks.rf_ps_lock);
1238}
1239