linux/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/rf.c
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   1/******************************************************************************
   2 *
   3 * Copyright(c) 2009-2012  Realtek Corporation.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms of version 2 of the GNU General Public License as
   7 * published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 * more details.
  13 *
  14 * The full GNU General Public License is included in this distribution in the
  15 * file called LICENSE.
  16 *
  17 * Contact Information:
  18 * wlanfae <wlanfae@realtek.com>
  19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  20 * Hsinchu 300, Taiwan.
  21 *
  22 * Larry Finger <Larry.Finger@lwfinger.net>
  23 *
  24 *****************************************************************************/
  25
  26#include "../wifi.h"
  27#include "reg.h"
  28#include "def.h"
  29#include "phy.h"
  30#include "rf.h"
  31#include "dm.h"
  32
  33static bool _rtl8723e_phy_rf6052_config_parafile(struct ieee80211_hw *hw);
  34
  35void rtl8723e_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth)
  36{
  37        struct rtl_priv *rtlpriv = rtl_priv(hw);
  38        struct rtl_phy *rtlphy = &rtlpriv->phy;
  39
  40        switch (bandwidth) {
  41        case HT_CHANNEL_WIDTH_20:
  42                rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
  43                                             0xfffff3ff) | 0x0400);
  44                rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
  45                              rtlphy->rfreg_chnlval[0]);
  46                break;
  47        case HT_CHANNEL_WIDTH_20_40:
  48                rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
  49                                             0xfffff3ff));
  50                rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
  51                              rtlphy->rfreg_chnlval[0]);
  52                break;
  53        default:
  54                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
  55                         "unknown bandwidth: %#X\n", bandwidth);
  56                break;
  57        }
  58}
  59
  60void rtl8723e_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
  61                                         u8 *ppowerlevel)
  62{
  63        struct rtl_priv *rtlpriv = rtl_priv(hw);
  64        struct rtl_phy *rtlphy = &rtlpriv->phy;
  65        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
  66        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
  67        u32 tx_agc[2] = {0, 0}, tmpval;
  68        bool turbo_scanoff = false;
  69        u8 idx1, idx2;
  70        u8 *ptr;
  71
  72        if (rtlefuse->eeprom_regulatory != 0)
  73                turbo_scanoff = true;
  74
  75        if (mac->act_scanning == true) {
  76                tx_agc[RF90_PATH_A] = 0x3f3f3f3f;
  77                tx_agc[RF90_PATH_B] = 0x3f3f3f3f;
  78
  79                if (turbo_scanoff) {
  80                        for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B;
  81                                idx1++) {
  82                                tx_agc[idx1] = ppowerlevel[idx1] |
  83                                    (ppowerlevel[idx1] << 8) |
  84                                    (ppowerlevel[idx1] << 16) |
  85                                    (ppowerlevel[idx1] << 24);
  86                        }
  87                }
  88        } else {
  89                for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
  90                        tx_agc[idx1] = ppowerlevel[idx1] |
  91                            (ppowerlevel[idx1] << 8) |
  92                            (ppowerlevel[idx1] << 16) |
  93                            (ppowerlevel[idx1] << 24);
  94                }
  95
  96                if (rtlefuse->eeprom_regulatory == 0) {
  97                        tmpval =
  98                            (rtlphy->mcs_txpwrlevel_origoffset[0][6]) +
  99                            (rtlphy->mcs_txpwrlevel_origoffset[0][7] <<
 100                             8);
 101                        tx_agc[RF90_PATH_A] += tmpval;
 102
 103                        tmpval = (rtlphy->mcs_txpwrlevel_origoffset[0][14]) +
 104                            (rtlphy->mcs_txpwrlevel_origoffset[0][15] <<
 105                             24);
 106                        tx_agc[RF90_PATH_B] += tmpval;
 107                }
 108        }
 109
 110        for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
 111                ptr = (u8 *)&tx_agc[idx1];
 112                for (idx2 = 0; idx2 < 4; idx2++) {
 113                        if (*ptr > RF6052_MAX_TX_PWR)
 114                                *ptr = RF6052_MAX_TX_PWR;
 115                        ptr++;
 116                }
 117        }
 118
 119        tmpval = tx_agc[RF90_PATH_A] & 0xff;
 120        rtl_set_bbreg(hw, RTXAGC_A_CCK1_MCS32, MASKBYTE1, tmpval);
 121
 122        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 123                "CCK PWR 1M (rf-A) = 0x%x (reg 0x%x)\n", tmpval,
 124                 RTXAGC_A_CCK1_MCS32);
 125
 126        tmpval = tx_agc[RF90_PATH_A] >> 8;
 127
 128        tmpval = tmpval & 0xff00ffff;
 129
 130        rtl_set_bbreg(hw, RTXAGC_B_CCK11_A_CCK2_11, 0xffffff00, tmpval);
 131
 132        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 133                "CCK PWR 2~11M (rf-A) = 0x%x (reg 0x%x)\n", tmpval,
 134                 RTXAGC_B_CCK11_A_CCK2_11);
 135
 136        tmpval = tx_agc[RF90_PATH_B] >> 24;
 137        rtl_set_bbreg(hw, RTXAGC_B_CCK11_A_CCK2_11, MASKBYTE0, tmpval);
 138
 139        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 140                "CCK PWR 11M (rf-B) = 0x%x (reg 0x%x)\n", tmpval,
 141                 RTXAGC_B_CCK11_A_CCK2_11);
 142
 143        tmpval = tx_agc[RF90_PATH_B] & 0x00ffffff;
 144        rtl_set_bbreg(hw, RTXAGC_B_CCK1_55_MCS32, 0xffffff00, tmpval);
 145
 146        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 147                "CCK PWR 1~5.5M (rf-B) = 0x%x (reg 0x%x)\n", tmpval,
 148                 RTXAGC_B_CCK1_55_MCS32);
 149}
 150
 151static void rtl8723e_phy_get_power_base(struct ieee80211_hw *hw,
 152                                        u8 *ppowerlevel, u8 channel,
 153                                        u32 *ofdmbase, u32 *mcsbase)
 154{
 155        struct rtl_priv *rtlpriv = rtl_priv(hw);
 156        struct rtl_phy *rtlphy = &rtlpriv->phy;
 157        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 158        u32 powerbase0, powerbase1;
 159        u8 legacy_pwrdiff, ht20_pwrdiff;
 160        u8 i, powerlevel[2];
 161
 162        for (i = 0; i < 2; i++) {
 163                powerlevel[i] = ppowerlevel[i];
 164                legacy_pwrdiff = rtlefuse->txpwr_legacyhtdiff[i][channel - 1];
 165                powerbase0 = powerlevel[i] + legacy_pwrdiff;
 166
 167                powerbase0 = (powerbase0 << 24) | (powerbase0 << 16) |
 168                    (powerbase0 << 8) | powerbase0;
 169                *(ofdmbase + i) = powerbase0;
 170                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 171                        " [OFDM power base index rf(%c) = 0x%x]\n",
 172                         ((i == 0) ? 'A' : 'B'), *(ofdmbase + i));
 173        }
 174
 175        for (i = 0; i < 2; i++) {
 176                if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20) {
 177                        ht20_pwrdiff =
 178                                rtlefuse->txpwr_ht20diff[i][channel - 1];
 179                        powerlevel[i] += ht20_pwrdiff;
 180                }
 181                powerbase1 = powerlevel[i];
 182                powerbase1 = (powerbase1 << 24) |
 183                    (powerbase1 << 16) | (powerbase1 << 8) | powerbase1;
 184
 185                *(mcsbase + i) = powerbase1;
 186
 187                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 188                        " [MCS power base index rf(%c) = 0x%x]\n",
 189                         ((i == 0) ? 'A' : 'B'), *(mcsbase + i));
 190        }
 191}
 192
 193static void get_txpower_writeval_by_reg(struct ieee80211_hw *hw,
 194                                        u8 channel, u8 index,
 195                                        u32 *powerbase0,
 196                                        u32 *powerbase1,
 197                                        u32 *p_outwriteval)
 198{
 199        struct rtl_priv *rtlpriv = rtl_priv(hw);
 200        struct rtl_phy *rtlphy = &rtlpriv->phy;
 201        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 202        u8 i, chnlgroup = 0, pwr_diff_limit[4];
 203        u32 writeval, customer_limit, rf;
 204
 205        for (rf = 0; rf < 2; rf++) {
 206                switch (rtlefuse->eeprom_regulatory) {
 207                case 0:
 208                        chnlgroup = 0;
 209
 210                        writeval =
 211                            rtlphy->mcs_txpwrlevel_origoffset[chnlgroup][index +
 212                                                                (rf ? 8 : 0)]
 213                            + ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 214
 215                        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 216                                "RTK better performance, writeval(%c) = 0x%x\n",
 217                                ((rf == 0) ? 'A' : 'B'), writeval);
 218                        break;
 219                case 1:
 220                        if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 221                                writeval = ((index < 2) ? powerbase0[rf] :
 222                                            powerbase1[rf]);
 223
 224                                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 225                                        "Realtek regulatory, 40MHz, writeval(%c) = 0x%x\n",
 226                                        ((rf == 0) ? 'A' : 'B'), writeval);
 227                        } else {
 228                                if (rtlphy->pwrgroup_cnt == 1)
 229                                        chnlgroup = 0;
 230                                if (rtlphy->pwrgroup_cnt >= 3) {
 231                                        if (channel <= 3)
 232                                                chnlgroup = 0;
 233                                        else if (channel >= 4 && channel <= 9)
 234                                                chnlgroup = 1;
 235                                        else if (channel > 9)
 236                                                chnlgroup = 2;
 237                                        if (rtlphy->current_chan_bw ==
 238                                                HT_CHANNEL_WIDTH_20)
 239                                                chnlgroup++;
 240                                        else
 241                                                chnlgroup += 4;
 242                                }
 243
 244                                writeval =
 245                                    rtlphy->mcs_txpwrlevel_origoffset[chnlgroup]
 246                                    [index + (rf ? 8 : 0)] + ((index < 2) ?
 247                                                              powerbase0[rf] :
 248                                                              powerbase1[rf]);
 249
 250                                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 251                                        "Realtek regulatory, 20MHz, writeval(%c) = 0x%x\n",
 252                                        ((rf == 0) ? 'A' : 'B'), writeval);
 253                        }
 254                        break;
 255                case 2:
 256                        writeval =
 257                            ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 258
 259                        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 260                                "Better regulatory, writeval(%c) = 0x%x\n",
 261                                ((rf == 0) ? 'A' : 'B'), writeval);
 262                        break;
 263                case 3:
 264                        chnlgroup = 0;
 265
 266                        if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 267                                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 268                                        "customer's limit, 40MHz rf(%c) = 0x%x\n",
 269                                        ((rf == 0) ? 'A' : 'B'),
 270                                        rtlefuse->pwrgroup_ht40[rf][channel -
 271                                                                     1]);
 272                        } else {
 273                                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 274                                        "customer's limit, 20MHz rf(%c) = 0x%x\n",
 275                                        ((rf == 0) ? 'A' : 'B'),
 276                                        rtlefuse->pwrgroup_ht20[rf][channel -
 277                                                                     1]);
 278                        }
 279                        for (i = 0; i < 4; i++) {
 280                                pwr_diff_limit[i] =
 281                                    (u8)((rtlphy->mcs_txpwrlevel_origoffset
 282                                          [chnlgroup][index +
 283                                                (rf ? 8 : 0)] & (0x7f <<
 284                                                (i * 8))) >> (i * 8));
 285
 286                                if (rtlphy->current_chan_bw ==
 287                                    HT_CHANNEL_WIDTH_20_40) {
 288                                        if (pwr_diff_limit[i] >
 289                                            rtlefuse->
 290                                            pwrgroup_ht40[rf][channel - 1])
 291                                                pwr_diff_limit[i] =
 292                                                    rtlefuse->pwrgroup_ht40[rf]
 293                                                    [channel - 1];
 294                                } else {
 295                                        if (pwr_diff_limit[i] >
 296                                            rtlefuse->
 297                                            pwrgroup_ht20[rf][channel - 1])
 298                                                pwr_diff_limit[i] =
 299                                                    rtlefuse->pwrgroup_ht20[rf]
 300                                                    [channel - 1];
 301                                }
 302                        }
 303
 304                        customer_limit = (pwr_diff_limit[3] << 24) |
 305                            (pwr_diff_limit[2] << 16) |
 306                            (pwr_diff_limit[1] << 8) | (pwr_diff_limit[0]);
 307
 308                        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 309                                "Customer's limit rf(%c) = 0x%x\n",
 310                                 ((rf == 0) ? 'A' : 'B'), customer_limit);
 311
 312                        writeval = customer_limit +
 313                            ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 314
 315                        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 316                                "Customer, writeval rf(%c)= 0x%x\n",
 317                                 ((rf == 0) ? 'A' : 'B'), writeval);
 318                        break;
 319                default:
 320                        chnlgroup = 0;
 321                        writeval =
 322                            rtlphy->mcs_txpwrlevel_origoffset[chnlgroup]
 323                            [index + (rf ? 8 : 0)]
 324                            + ((index < 2) ? powerbase0[rf] : powerbase1[rf]);
 325
 326                        RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 327                                "RTK better performance, writeval rf(%c) = 0x%x\n",
 328                                ((rf == 0) ? 'A' : 'B'), writeval);
 329                        break;
 330                }
 331
 332                if (rtlpriv->dm.dynamic_txhighpower_lvl == TXHIGHPWRLEVEL_BT1)
 333                        writeval = writeval - 0x06060606;
 334                else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
 335                         TXHIGHPWRLEVEL_BT2)
 336                        writeval = writeval - 0x0c0c0c0c;
 337                *(p_outwriteval + rf) = writeval;
 338        }
 339}
 340
 341static void _rtl8723e_write_ofdm_power_reg(struct ieee80211_hw *hw,
 342                                           u8 index, u32 *pvalue)
 343{
 344        struct rtl_priv *rtlpriv = rtl_priv(hw);
 345        struct rtl_phy *rtlphy = &rtlpriv->phy;
 346
 347        u16 regoffset_a[6] = {
 348                RTXAGC_A_RATE18_06, RTXAGC_A_RATE54_24,
 349                RTXAGC_A_MCS03_MCS00, RTXAGC_A_MCS07_MCS04,
 350                RTXAGC_A_MCS11_MCS08, RTXAGC_A_MCS15_MCS12
 351        };
 352        u16 regoffset_b[6] = {
 353                RTXAGC_B_RATE18_06, RTXAGC_B_RATE54_24,
 354                RTXAGC_B_MCS03_MCS00, RTXAGC_B_MCS07_MCS04,
 355                RTXAGC_B_MCS11_MCS08, RTXAGC_B_MCS15_MCS12
 356        };
 357        u8 i, rf, pwr_val[4];
 358        u32 writeval;
 359        u16 regoffset;
 360
 361        for (rf = 0; rf < 2; rf++) {
 362                writeval = pvalue[rf];
 363                for (i = 0; i < 4; i++) {
 364                        pwr_val[i] = (u8)((writeval & (0x7f <<
 365                                           (i * 8))) >> (i * 8));
 366
 367                        if (pwr_val[i] > RF6052_MAX_TX_PWR)
 368                                pwr_val[i] = RF6052_MAX_TX_PWR;
 369                }
 370                writeval = (pwr_val[3] << 24) | (pwr_val[2] << 16) |
 371                    (pwr_val[1] << 8) | pwr_val[0];
 372
 373                if (rf == 0)
 374                        regoffset = regoffset_a[index];
 375                else
 376                        regoffset = regoffset_b[index];
 377                rtl_set_bbreg(hw, regoffset, MASKDWORD, writeval);
 378
 379                RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
 380                        "Set 0x%x = %08x\n", regoffset, writeval);
 381
 382                if (((get_rf_type(rtlphy) == RF_2T2R) &&
 383                     (regoffset == RTXAGC_A_MCS15_MCS12 ||
 384                      regoffset == RTXAGC_B_MCS15_MCS12)) ||
 385                    ((get_rf_type(rtlphy) != RF_2T2R) &&
 386                     (regoffset == RTXAGC_A_MCS07_MCS04 ||
 387                      regoffset == RTXAGC_B_MCS07_MCS04))) {
 388
 389                        writeval = pwr_val[3];
 390                        if (regoffset == RTXAGC_A_MCS15_MCS12 ||
 391                            regoffset == RTXAGC_A_MCS07_MCS04)
 392                                regoffset = 0xc90;
 393                        if (regoffset == RTXAGC_B_MCS15_MCS12 ||
 394                            regoffset == RTXAGC_B_MCS07_MCS04)
 395                                regoffset = 0xc98;
 396
 397                        for (i = 0; i < 3; i++) {
 398                                writeval = (writeval > 6) ? (writeval - 6) : 0;
 399                                rtl_write_byte(rtlpriv, (u32) (regoffset + i),
 400                                               (u8)writeval);
 401                        }
 402                }
 403        }
 404}
 405
 406void rtl8723e_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
 407                                          u8 *ppowerlevel, u8 channel)
 408{
 409        u32 writeval[2], powerbase0[2], powerbase1[2];
 410        u8 index;
 411
 412        rtl8723e_phy_get_power_base(hw, ppowerlevel,
 413                                    channel, &powerbase0[0], &powerbase1[0]);
 414
 415        for (index = 0; index < 6; index++) {
 416                get_txpower_writeval_by_reg(hw, channel, index, &powerbase0[0],
 417                                            &powerbase1[0],
 418                                            &writeval[0]);
 419
 420                _rtl8723e_write_ofdm_power_reg(hw, index, &writeval[0]);
 421        }
 422}
 423
 424bool rtl8723e_phy_rf6052_config(struct ieee80211_hw *hw)
 425{
 426        struct rtl_priv *rtlpriv = rtl_priv(hw);
 427        struct rtl_phy *rtlphy = &rtlpriv->phy;
 428
 429        if (rtlphy->rf_type == RF_1T1R)
 430                rtlphy->num_total_rfpath = 1;
 431        else
 432                rtlphy->num_total_rfpath = 2;
 433
 434        return _rtl8723e_phy_rf6052_config_parafile(hw);
 435}
 436
 437static bool _rtl8723e_phy_rf6052_config_parafile(struct ieee80211_hw *hw)
 438{
 439        struct rtl_priv *rtlpriv = rtl_priv(hw);
 440        struct rtl_phy *rtlphy = &rtlpriv->phy;
 441        u32 u4_regvalue = 0;
 442        u8 rfpath;
 443        bool rtstatus = true;
 444        struct bb_reg_def *pphyreg;
 445
 446        for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
 447
 448                pphyreg = &rtlphy->phyreg_def[rfpath];
 449
 450                switch (rfpath) {
 451                case RF90_PATH_A:
 452                case RF90_PATH_C:
 453                        u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
 454                                                    BRFSI_RFENV);
 455                        break;
 456                case RF90_PATH_B:
 457                case RF90_PATH_D:
 458                        u4_regvalue = rtl_get_bbreg(hw, pphyreg->rfintfs,
 459                                                    BRFSI_RFENV << 16);
 460                        break;
 461                }
 462
 463                rtl_set_bbreg(hw, pphyreg->rfintfe, BRFSI_RFENV << 16, 0x1);
 464                udelay(1);
 465
 466                rtl_set_bbreg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
 467                udelay(1);
 468
 469                rtl_set_bbreg(hw, pphyreg->rfhssi_para2,
 470                              B3WIREADDREAALENGTH, 0x0);
 471                udelay(1);
 472
 473                rtl_set_bbreg(hw, pphyreg->rfhssi_para2, B3WIREDATALENGTH, 0x0);
 474                udelay(1);
 475
 476                switch (rfpath) {
 477                case RF90_PATH_A:
 478                        rtstatus = rtl8723e_phy_config_rf_with_headerfile(hw,
 479                                                (enum radio_path)rfpath);
 480                        break;
 481                case RF90_PATH_B:
 482                        rtstatus =
 483                          rtl8723e_phy_config_rf_with_headerfile(hw,
 484                                                (enum radio_path)rfpath);
 485                        break;
 486                case RF90_PATH_C:
 487                        break;
 488                case RF90_PATH_D:
 489                        break;
 490                }
 491
 492                switch (rfpath) {
 493                case RF90_PATH_A:
 494                case RF90_PATH_C:
 495                        rtl_set_bbreg(hw, pphyreg->rfintfs,
 496                                      BRFSI_RFENV, u4_regvalue);
 497                        break;
 498                case RF90_PATH_B:
 499                case RF90_PATH_D:
 500                        rtl_set_bbreg(hw, pphyreg->rfintfs,
 501                                      BRFSI_RFENV << 16, u4_regvalue);
 502                        break;
 503                }
 504
 505                if (rtstatus != true) {
 506                        RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 507                                 "Radio[%d] Fail!!\n", rfpath);
 508                        return false;
 509                }
 510        }
 511
 512        RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "\n");
 513        return rtstatus;
 514}
 515