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 disconnet 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 !", *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 if ((ppsc->rfpwr_state == ERFON) && 1223 ((!fw_current_inpsmode) && fw_ps_awake) && 1224 (!ppsc->rfchange_inprogress)) { 1225 rtl92ee_dm_common_info_self_update(hw); 1226 rtl92ee_dm_false_alarm_counter_statistics(hw); 1227 rtl92ee_dm_check_rssi_monitor(hw); 1228 rtl92ee_dm_dig(hw); 1229 rtl92ee_dm_adaptivity(hw); 1230 rtl92ee_dm_cck_packet_detection_thresh(hw); 1231 rtl92ee_dm_refresh_rate_adaptive_mask(hw); 1232 rtl92ee_dm_check_edca_turbo(hw); 1233 rtl92ee_dm_dynamic_atc_switch(hw); 1234 rtl92ee_dm_dynamic_primary_cca_ckeck(hw); 1235 } 1236} 1237