drivers/net/wireless/realtek/rtlwifi/rtl8192ce/rf.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
   3
   4 #include "../wifi.h"
   5 #include "reg.h"
   6 #include "def.h"
   7 #include "phy.h"
   8 #include "rf.h"
   9 #include "dm.h"
  10
  11 static bool _rtl92ce_phy_rf6052_config_parafile(struct ieee80211_hw *hw);
  12
  13 void rtl92ce_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth)
  14 {
  15         struct rtl_priv *rtlpriv = rtl_priv(hw);
  16         struct rtl_phy *rtlphy = &(rtlpriv->phy);
  17
  18         switch (bandwidth) {
  19         case HT_CHANNEL_WIDTH_20:
  20                 rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
  21                                              0xfffff3ff) | 0x0400);
  22                 rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
  23                               rtlphy->rfreg_chnlval[0]);
  24                 break;
  25         case HT_CHANNEL_WIDTH_20_40:
  26                 rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
  27                                              0xfffff3ff));
  28                 rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
  29                               rtlphy->rfreg_chnlval[0]);
  30                 break;
  31         default:
  32                 pr_err("unknown bandwidth: %#X\n", bandwidth);
  33                 break;
  34         }
  35 }
  36
  37 void rtl92ce_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
  38                                         u8 *ppowerlevel)
  39 {
  40         struct rtl_priv *rtlpriv = rtl_priv(hw);
  41         struct rtl_phy *rtlphy = &(rtlpriv->phy);
  42         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  43         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
  44         u32 tx_agc[2] = {0, 0}, tmpval;
  45         bool turbo_scanoff = false;
  46         u8 idx1, idx2;
  47         u8 *ptr;
  48
  49         if (rtlefuse->eeprom_regulatory != 0)
  50                 turbo_scanoff = true;
  51
  52         if (mac->act_scanning) {
  53                 tx_agc[RF90_PATH_A] = 0x3f3f3f3f;
  54                 tx_agc[RF90_PATH_B] = 0x3f3f3f3f;
  55
  56                 if (turbo_scanoff) {
  57                         for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
  58                                 tx_agc[idx1] = ppowerlevel[idx1] |
  59                                     (ppowerlevel[idx1] << 8) |
  60                                     (ppowerlevel[idx1] << 16) |
  61                                     (ppowerlevel[idx1] << 24);
  62                         }
  63                 }
  64         } else {
  65                 for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
  66                         tx_agc[idx1] = ppowerlevel[idx1] |
  67                             (ppowerlevel[idx1] << 8) |
  68                             (ppowerlevel[idx1] << 16) |
  69                             (ppowerlevel[idx1] << 24);
  70                 }
  71
  72                 if (rtlefuse->eeprom_regulatory == 0) {
  73                         tmpval = (rtlphy->mcs_offset[0][6]) +
  74                             (rtlphy->mcs_offset[0][7] << 8);
  75                         tx_agc[RF90_PATH_A] += tmpval;
  76
  77                         tmpval = (rtlphy->mcs_offset[0][14]) +
  78                                  (rtlphy->mcs_offset[0][15] << 24);
  79                         tx_agc[RF90_PATH_B] += tmpval;
  80                 }
  81         }
  82
  83         for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
  84                 ptr = (u8 *) (&(tx_agc[idx1]));
  85                 for (idx2 = 0; idx2 < 4; idx2++) {
  86                         if (*ptr > RF6052_MAX_TX_PWR)
  87                                 *ptr = RF6052_MAX_TX_PWR;
  88                         ptr++;
  89                 }
  90         }
  91
  92         tmpval = tx_agc[RF90_PATH_A] & 0xff;
  93         rtl_set_bbreg(hw, RTXAGC_A_CCK1_MCS32, MASKBYTE1, tmpval);
  94
  95         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
  96                 "CCK PWR 1M (rf-A) = 0x%x (reg 0x%x)\n",
  97                 tmpval, RTXAGC_A_CCK1_MCS32);
  98
  99         tmpval = tx_agc[RF90_PATH_A] >> 8;
 100
 101         tmpval = tmpval & 0xff00ffff;
 102
 103         rtl_set_bbreg(hw, RTXAGC_B_CCK11_A_CCK2_11, 0xffffff00, tmpval);
 104
 105         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 106                 "CCK PWR 2~11M (rf-A) = 0x%x (reg 0x%x)\n",
 107                 tmpval, RTXAGC_B_CCK11_A_CCK2_11);
 108
 109         tmpval = tx_agc[RF90_PATH_B] >> 24;
 110         rtl_set_bbreg(hw, RTXAGC_B_CCK11_A_CCK2_11, MASKBYTE0, tmpval);
 111
 112         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 113                 "CCK PWR 11M (rf-B) = 0x%x (reg 0x%x)\n",
 114                 tmpval, RTXAGC_B_CCK11_A_CCK2_11);
 115
 116         tmpval = tx_agc[RF90_PATH_B] & 0x00ffffff;
 117         rtl_set_bbreg(hw, RTXAGC_B_CCK1_55_MCS32, 0xffffff00, tmpval);
 118
 119         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 120                 "CCK PWR 1~5.5M (rf-B) = 0x%x (reg 0x%x)\n",
 121                 tmpval, RTXAGC_B_CCK1_55_MCS32);
 122 }
 123
 124 static void rtl92c_phy_get_power_base(struct ieee80211_hw *hw,
 125                                       u8 *ppowerlevel, u8 channel,
 126                                       u32 *ofdmbase, u32 *mcsbase)
 127 {
 128         struct rtl_priv *rtlpriv = rtl_priv(hw);
 129         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 130         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 131         u32 powerbase0, powerbase1;
 132         u8 legacy_pwrdiff, ht20_pwrdiff;
 133         u8 i, powerlevel[2];
 134
 135         for (i = 0; i < 2; i++) {
 136                 powerlevel[i] = ppowerlevel[i];
 137                 legacy_pwrdiff = rtlefuse->txpwr_legacyhtdiff[i][channel - 1];
 138                 powerbase0 = powerlevel[i] + legacy_pwrdiff;
 139
 140                 powerbase0 = (powerbase0 << 24) | (powerbase0 << 16) |
 141                     (powerbase0 << 8) | powerbase0;
 142                 *(ofdmbase + i) = powerbase0;
 143                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 144                         " [OFDM power base index rf(%c) = 0x%x]\n",
 145                         i == 0 ? 'A' : 'B', *(ofdmbase + i));
 146         }
 147
 148         for (i = 0; i < 2; i++) {
 149                 if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20) {
 150                         ht20_pwrdiff = rtlefuse->txpwr_ht20diff[i][channel - 1];
 151                         powerlevel[i] += ht20_pwrdiff;
 152                 }
 153                 powerbase1 = powerlevel[i];
 154                 powerbase1 = (powerbase1 << 24) |
 155                     (powerbase1 << 16) | (powerbase1 << 8) | powerbase1;
 156
 157                 *(mcsbase + i) = powerbase1;
 158
 159                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 160                         " [MCS power base index rf(%c) = 0x%x]\n",
 161                         i == 0 ? 'A' : 'B', *(mcsbase + i));
 162         }
 163 }
 164
 165 static void _rtl92c_get_txpower_writeval_by_regulatory(struct ieee80211_hw *hw,
 166                                                        u8 channel, u8 index,
 167                                                        u32 *powerbase0,
 168                                                        u32 *powerbase1,
 169                                                        u32 *p_outwriteval)
 170 {
 171         struct rtl_priv *rtlpriv = rtl_priv(hw);
 172         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 173         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 174         u8 i, chnlgroup = 0, pwr_diff_limit[4];
 175         u32 writeval, customer_limit, rf;
 176
 177         for (rf = 0; rf < 2; rf++) {
 178                 switch (rtlefuse->eeprom_regulatory) {
 179                 case 0:
 180                         chnlgroup = 0;
 181
 182                         writeval = rtlphy->mcs_offset[chnlgroup][index +
 183                             (rf ? 8 : 0)]
 184                             + ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 185
 186                         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 187                                 "RTK better performance, writeval(%c) = 0x%x\n",
 188                                 rf == 0 ? 'A' : 'B', writeval);
 189                         break;
 190                 case 1:
 191                         if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 192                                 writeval = ((index < 2) ? powerbase0[rf] :
 193                                             powerbase1[rf]);
 194
 195                                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 196                                         "Realtek regulatory, 40MHz, writeval(%c) = 0x%x\n",
 197                                         rf == 0 ? 'A' : 'B', writeval);
 198                         } else {
 199                                 if (rtlphy->pwrgroup_cnt == 1)
 200                                         chnlgroup = 0;
 201                                 if (rtlphy->pwrgroup_cnt >= 3) {
 202                                         if (channel <= 3)
 203                                                 chnlgroup = 0;
 204                                         else if (channel >= 4 && channel <= 9)
 205                                                 chnlgroup = 1;
 206                                         else if (channel > 9)
 207                                                 chnlgroup = 2;
 208                                         if (rtlphy->pwrgroup_cnt == 4)
 209                                                 chnlgroup++;
 210                                 }
 211
 212                                 writeval = rtlphy->mcs_offset[chnlgroup]
 213                                     [index + (rf ? 8 : 0)] + ((index < 2) ?
 214                                                               powerbase0[rf] :
 215                                                               powerbase1[rf]);
 216
 217                                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 218                                         "Realtek regulatory, 20MHz, writeval(%c) = 0x%x\n",
 219                                         rf == 0 ? 'A' : 'B', writeval);
 220                         }
 221                         break;
 222                 case 2:
 223                         writeval =
 224                             ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 225
 226                         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 227                                 "Better regulatory, writeval(%c) = 0x%x\n",
 228                                 rf == 0 ? 'A' : 'B', writeval);
 229                         break;
 230                 case 3:
 231                         chnlgroup = 0;
 232
 233                         if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 234                                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 235                                         "customer's limit, 40MHz rf(%c) = 0x%x\n",
 236                                         rf == 0 ? 'A' : 'B',
 237                                         rtlefuse->pwrgroup_ht40[rf][channel -
 238                                                                     1]);
 239                         } else {
 240                                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 241                                         "customer's limit, 20MHz rf(%c) = 0x%x\n",
 242                                         rf == 0 ? 'A' : 'B',
 243                                         rtlefuse->pwrgroup_ht20[rf][channel -
 244                                                                     1]);
 245                         }
 246                         for (i = 0; i < 4; i++) {
 247                                 pwr_diff_limit[i] = (u8) ((rtlphy->mcs_offset
 248                                           [chnlgroup][index +
 249                                           (rf ? 8 : 0)] & (0x7f << (i * 8))) >>
 250                                           (i * 8));
 251
 252                                 if (rtlphy->current_chan_bw ==
 253                                     HT_CHANNEL_WIDTH_20_40) {
 254                                         if (pwr_diff_limit[i] >
 255                                             rtlefuse->
 256                                             pwrgroup_ht40[rf][channel - 1])
 257                                                 pwr_diff_limit[i] =
 258                                                     rtlefuse->pwrgroup_ht40[rf]
 259                                                     [channel - 1];
 260                                 } else {
 261                                         if (pwr_diff_limit[i] >
 262                                             rtlefuse->
 263                                             pwrgroup_ht20[rf][channel - 1])
 264                                                 pwr_diff_limit[i] =
 265                                                     rtlefuse->pwrgroup_ht20[rf]
 266                                                     [channel - 1];
 267                                 }
 268                         }
 269
 270                         customer_limit = (pwr_diff_limit[3] << 24) |
 271                             (pwr_diff_limit[2] << 16) |
 272                             (pwr_diff_limit[1] << 8) | (pwr_diff_limit[0]);
 273
 274                         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 275                                 "Customer's limit rf(%c) = 0x%x\n",
 276                                 rf == 0 ? 'A' : 'B', customer_limit);
 277
 278                         writeval = customer_limit +
 279                             ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 280
 281                         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 282                                 "Customer, writeval rf(%c)= 0x%x\n",
 283                                 rf == 0 ? 'A' : 'B', writeval);
 284                         break;
 285                 default:
 286                         chnlgroup = 0;
 287                         writeval = rtlphy->mcs_offset[chnlgroup]
 288                             [index + (rf ? 8 : 0)]
 289                             + ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 290
 291                         RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 292                                 "RTK better performance, writeval rf(%c) = 0x%x\n",
 293                                 rf == 0 ? 'A' : 'B', writeval);
 294                         break;
 295                 }
 296
 297                 if (rtlpriv->dm.dynamic_txhighpower_lvl == TXHIGHPWRLEVEL_BT1)
 298                         writeval = writeval - 0x06060606;
 299                 else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
 300                          TXHIGHPWRLEVEL_BT2)
 301                         writeval = writeval - 0x0c0c0c0c;
 302                 *(p_outwriteval + rf) = writeval;
 303         }
 304 }
 305
 306 static void _rtl92c_write_ofdm_power_reg(struct ieee80211_hw *hw,
 307                                          u8 index, u32 *value)
 308 {
 309         struct rtl_priv *rtlpriv = rtl_priv(hw);
 310         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 311
 312         u16 regoffset_a[6] = {
 313                 RTXAGC_A_RATE18_06, RTXAGC_A_RATE54_24,
 314                 RTXAGC_A_MCS03_MCS00, RTXAGC_A_MCS07_MCS04,
 315                 RTXAGC_A_MCS11_MCS08, RTXAGC_A_MCS15_MCS12
 316         };
 317         u16 regoffset_b[6] = {
 318                 RTXAGC_B_RATE18_06, RTXAGC_B_RATE54_24,
 319                 RTXAGC_B_MCS03_MCS00, RTXAGC_B_MCS07_MCS04,
 320                 RTXAGC_B_MCS11_MCS08, RTXAGC_B_MCS15_MCS12
 321         };
 322         u8 i, rf, pwr_val[4];
 323         u32 writeval;
 324         u16 regoffset;
 325
 326         for (rf = 0; rf < 2; rf++) {
 327                 writeval = value[rf];
 328                 for (i = 0; i < 4; i++) {
 329                         pwr_val[i] = (u8)((writeval & (0x7f <<
 330                                                         (i * 8))) >> (i * 8));
 331
 332                         if (pwr_val[i] > RF6052_MAX_TX_PWR)
 333                                 pwr_val[i] = RF6052_MAX_TX_PWR;
 334                 }
 335                 writeval = (pwr_val[3] << 24) | (pwr_val[2] << 16) |
 336                     (pwr_val[1] << 8) | pwr_val[0];
 337
 338                 if (rf == 0)
 339                         regoffset = regoffset_a[index];
 340                 else
 341                         regoffset = regoffset_b[index];
 342                 rtl_set_bbreg(hw, regoffset, MASKDWORD, writeval);
 343
 344                 RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 345                         "Set 0x%x = %08x\n", regoffset, writeval);
 346
 347                 if (((get_rf_type(rtlphy) == RF_2T2R) &&
 348                      (regoffset == RTXAGC_A_MCS15_MCS12 ||
 349                       regoffset == RTXAGC_B_MCS15_MCS12)) ||
 350                     ((get_rf_type(rtlphy) != RF_2T2R) &&
 351                      (regoffset == RTXAGC_A_MCS07_MCS04 ||
 352                       regoffset == RTXAGC_B_MCS07_MCS04))) {
 353
 354                         writeval = pwr_val[3];
 355                         if (regoffset == RTXAGC_A_MCS15_MCS12 ||
 356                             regoffset == RTXAGC_A_MCS07_MCS04)
 357                                 regoffset = 0xc90;
 358                         if (regoffset == RTXAGC_B_MCS15_MCS12 ||
 359                             regoffset == RTXAGC_B_MCS07_MCS04)
 360                                 regoffset = 0xc98;
 361
 362                         for (i = 0; i < 3; i++) {
 363                                 writeval = (writeval > 6) ? (writeval - 6) : 0;
 364                                 rtl_write_byte(rtlpriv, (u32) (regoffset + i),
 365                                                (u8)writeval);
 366                         }
 367                 }
 368         }
 369 }
 370
 371 void rtl92ce_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
 372                                         u8 *ppowerlevel, u8 channel)
 373 {
 374         u32 writeval[2], powerbase0[2], powerbase1[2];
 375         u8 index;
 376
 377         rtl92c_phy_get_power_base(hw, ppowerlevel,
 378                                   channel, &powerbase0[0], &powerbase1[0]);
 379
 380         for (index = 0; index < 6; index++) {
 381                 _rtl92c_get_txpower_writeval_by_regulatory(hw,
 382                                                            channel, index,
 383                                                            &powerbase0[0],
 384                                                            &powerbase1[0],
 385                                                            &writeval[0]);
 386
 387                 _rtl92c_write_ofdm_power_reg(hw, index, &writeval[0]);
 388         }
 389 }
 390
 391 bool rtl92ce_phy_rf6052_config(struct ieee80211_hw *hw)
 392 {
 393         struct rtl_priv *rtlpriv = rtl_priv(hw);
 394         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 395
 396         if (rtlphy->rf_type == RF_1T1R)
 397                 rtlphy->num_total_rfpath = 1;
 398         else
 399                 rtlphy->num_total_rfpath = 2;
 400
 401         return _rtl92ce_phy_rf6052_config_parafile(hw);
 402
 403 }
 404
 405 static bool _rtl92ce_phy_rf6052_config_parafile(struct ieee80211_hw *hw)
 406 {
 407         struct rtl_priv *rtlpriv = rtl_priv(hw);
 408         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 409         u32 u4_regvalue = 0;
 410         u8 rfpath;
 411         bool rtstatus = true;
 412         struct bb_reg_def *pphyreg;
 413
 414         for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
 415
 416                 pphyreg = &rtlphy->phyreg_def[rfpath];
 417
 418                 switch (rfpath) {
 419                 case RF90_PATH_A:
 420                 case RF90_PATH_C:
 421                         u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
 422                                                     BRFSI_RFENV);
 423                         break;
 424                 case RF90_PATH_B:
 425                 case RF90_PATH_D:
 426                         u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
 427                                                     BRFSI_RFENV << 16);
 428                         break;
 429                 }
 430
 431                 rtl_set_bbreg(hw, pphyreg->rfintfe, BRFSI_RFENV << 16, 0x1);
 432                 udelay(1);
 433
 434                 rtl_set_bbreg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
 435                 udelay(1);
 436
 437                 rtl_set_bbreg(hw, pphyreg->rfhssi_para2,
 438                               B3WIREADDREAALENGTH, 0x0);
 439                 udelay(1);
 440
 441                 rtl_set_bbreg(hw, pphyreg->rfhssi_para2, B3WIREDATALENGTH, 0x0);
 442                 udelay(1);
 443
 444                 switch (rfpath) {
 445                 case RF90_PATH_A:
 446                         rtstatus = rtl92c_phy_config_rf_with_headerfile(hw,
 447                                                 (enum radio_path)rfpath);
 448                         break;
 449                 case RF90_PATH_B:
 450                         rtstatus = rtl92c_phy_config_rf_with_headerfile(hw,
 451                                                 (enum radio_path)rfpath);
 452                         break;
 453                 case RF90_PATH_C:
 454                         break;
 455                 case RF90_PATH_D:
 456                         break;
 457                 }
 458
 459                 switch (rfpath) {
 460                 case RF90_PATH_A:
 461                 case RF90_PATH_C:
 462                         rtl_set_bbreg(hw, pphyreg->rfintfs,
 463                                       BRFSI_RFENV, u4_regvalue);
 464                         break;
 465                 case RF90_PATH_B:
 466                 case RF90_PATH_D:
 467                         rtl_set_bbreg(hw, pphyreg->rfintfs,
 468                                       BRFSI_RFENV << 16, u4_regvalue);
 469                         break;
 470                 }
 471
 472                 if (!rtstatus) {
 473                         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 474                                  "Radio[%d] Fail!!\n", rfpath);
 475                         return false;
 476                 }
 477
 478         }
 479
 480         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "<---\n");
 481         return rtstatus;
 482 }