| /****************************************************************************** |
| * |
| * Copyright(c) 2009-2012 Realtek Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| * |
| * The full GNU General Public License is included in this distribution in the |
| * file called LICENSE. |
| * |
| * Contact Information: |
| * wlanfae <wlanfae@realtek.com> |
| * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, |
| * Hsinchu 300, Taiwan. |
| * |
| * Larry Finger <Larry.Finger@lwfinger.net> |
| * |
| *****************************************************************************/ |
| |
| #include "../wifi.h" |
| #include "reg.h" |
| #include "def.h" |
| #include "phy.h" |
| #include "rf.h" |
| #include "dm.h" |
| |
| |
| static void _rtl92s_get_powerbase(struct ieee80211_hw *hw, u8 *p_pwrlevel, |
| u8 chnl, u32 *ofdmbase, u32 *mcsbase, |
| u8 *p_final_pwridx) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); |
| u32 pwrbase0, pwrbase1; |
| u8 legacy_pwrdiff = 0, ht20_pwrdiff = 0; |
| u8 i, pwrlevel[4]; |
| |
| for (i = 0; i < 2; i++) |
| pwrlevel[i] = p_pwrlevel[i]; |
| |
| /* We only care about the path A for legacy. */ |
| if (rtlefuse->eeprom_version < 2) { |
| pwrbase0 = pwrlevel[0] + (rtlefuse->legacy_httxpowerdiff & 0xf); |
| } else if (rtlefuse->eeprom_version >= 2) { |
| legacy_pwrdiff = rtlefuse->txpwr_legacyhtdiff |
| [RF90_PATH_A][chnl - 1]; |
| |
| /* For legacy OFDM, tx pwr always > HT OFDM pwr. |
| * We do not care Path B |
| * legacy OFDM pwr diff. NO BB register |
| * to notify HW. */ |
| pwrbase0 = pwrlevel[0] + legacy_pwrdiff; |
| } |
| |
| pwrbase0 = (pwrbase0 << 24) | (pwrbase0 << 16) | (pwrbase0 << 8) | |
| pwrbase0; |
| *ofdmbase = pwrbase0; |
| |
| /* MCS rates */ |
| if (rtlefuse->eeprom_version >= 2) { |
| /* Check HT20 to HT40 diff */ |
| if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20) { |
| for (i = 0; i < 2; i++) { |
| /* rf-A, rf-B */ |
| /* HT 20<->40 pwr diff */ |
| ht20_pwrdiff = rtlefuse->txpwr_ht20diff |
| [i][chnl - 1]; |
| |
| if (ht20_pwrdiff < 8) /* 0~+7 */ |
| pwrlevel[i] += ht20_pwrdiff; |
| else /* index8-15=-8~-1 */ |
| pwrlevel[i] -= (16 - ht20_pwrdiff); |
| } |
| } |
| } |
| |
| /* use index of rf-A */ |
| pwrbase1 = pwrlevel[0]; |
| pwrbase1 = (pwrbase1 << 24) | (pwrbase1 << 16) | (pwrbase1 << 8) | |
| pwrbase1; |
| *mcsbase = pwrbase1; |
| |
| /* The following is for Antenna |
| * diff from Ant-B to Ant-A */ |
| p_final_pwridx[0] = pwrlevel[0]; |
| p_final_pwridx[1] = pwrlevel[1]; |
| |
| switch (rtlefuse->eeprom_regulatory) { |
| case 3: |
| /* The following is for calculation |
| * of the power diff for Ant-B to Ant-A. */ |
| if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { |
| p_final_pwridx[0] += rtlefuse->pwrgroup_ht40 |
| [RF90_PATH_A][ |
| chnl - 1]; |
| p_final_pwridx[1] += rtlefuse->pwrgroup_ht40 |
| [RF90_PATH_B][ |
| chnl - 1]; |
| } else { |
| p_final_pwridx[0] += rtlefuse->pwrgroup_ht20 |
| [RF90_PATH_A][ |
| chnl - 1]; |
| p_final_pwridx[1] += rtlefuse->pwrgroup_ht20 |
| [RF90_PATH_B][ |
| chnl - 1]; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "40MHz finalpwr_idx (A / B) = 0x%x / 0x%x\n", |
| p_final_pwridx[0], p_final_pwridx[1]); |
| } else { |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "20MHz finalpwr_idx (A / B) = 0x%x / 0x%x\n", |
| p_final_pwridx[0], p_final_pwridx[1]); |
| } |
| } |
| |
| static void _rtl92s_set_antennadiff(struct ieee80211_hw *hw, |
| u8 *p_final_pwridx) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); |
| struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| char ant_pwr_diff = 0; |
| u32 u4reg_val = 0; |
| |
| if (rtlphy->rf_type == RF_2T2R) { |
| ant_pwr_diff = p_final_pwridx[1] - p_final_pwridx[0]; |
| |
| /* range is from 7~-8, |
| * index = 0x0~0xf */ |
| if (ant_pwr_diff > 7) |
| ant_pwr_diff = 7; |
| if (ant_pwr_diff < -8) |
| ant_pwr_diff = -8; |
| |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "Antenna Diff from RF-B to RF-A = %d (0x%x)\n", |
| ant_pwr_diff, ant_pwr_diff & 0xf); |
| |
| ant_pwr_diff &= 0xf; |
| } |
| |
| /* Antenna TX power difference */ |
| rtlefuse->antenna_txpwdiff[2] = 0;/* RF-D, don't care */ |
| rtlefuse->antenna_txpwdiff[1] = 0;/* RF-C, don't care */ |
| rtlefuse->antenna_txpwdiff[0] = (u8)(ant_pwr_diff); /* RF-B */ |
| |
| u4reg_val = rtlefuse->antenna_txpwdiff[2] << 8 | |
| rtlefuse->antenna_txpwdiff[1] << 4 | |
| rtlefuse->antenna_txpwdiff[0]; |
| |
| rtl_set_bbreg(hw, RFPGA0_TXGAINSTAGE, (BXBTXAGC | BXCTXAGC | BXDTXAGC), |
| u4reg_val); |
| |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, "Write BCD-Diff(0x%x) = 0x%x\n", |
| RFPGA0_TXGAINSTAGE, u4reg_val); |
| } |
| |
| static void _rtl92s_get_txpower_writeval_byregulatory(struct ieee80211_hw *hw, |
| u8 chnl, u8 index, |
| u32 pwrbase0, |
| u32 pwrbase1, |
| u32 *p_outwrite_val) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); |
| u8 i, chnlgroup, pwrdiff_limit[4]; |
| u32 writeval, customer_limit; |
| |
| /* Index 0 & 1= legacy OFDM, 2-5=HT_MCS rate */ |
| switch (rtlefuse->eeprom_regulatory) { |
| case 0: |
| /* Realtek better performance increase power diff |
| * defined by Realtek for large power */ |
| chnlgroup = 0; |
| |
| writeval = rtlphy->mcs_offset[chnlgroup][index] + |
| ((index < 2) ? pwrbase0 : pwrbase1); |
| |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "RTK better performance, writeval = 0x%x\n", writeval); |
| break; |
| case 1: |
| /* Realtek regulatory increase power diff defined |
| * by Realtek for regulatory */ |
| if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { |
| writeval = ((index < 2) ? pwrbase0 : pwrbase1); |
| |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "Realtek regulatory, 40MHz, writeval = 0x%x\n", |
| writeval); |
| } else { |
| if (rtlphy->pwrgroup_cnt == 1) |
| chnlgroup = 0; |
| |
| if (rtlphy->pwrgroup_cnt >= 3) { |
| if (chnl <= 3) |
| chnlgroup = 0; |
| else if (chnl >= 4 && chnl <= 8) |
| chnlgroup = 1; |
| else if (chnl > 8) |
| chnlgroup = 2; |
| if (rtlphy->pwrgroup_cnt == 4) |
| chnlgroup++; |
| } |
| |
| writeval = rtlphy->mcs_offset[chnlgroup][index] |
| + ((index < 2) ? |
| pwrbase0 : pwrbase1); |
| |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "Realtek regulatory, 20MHz, writeval = 0x%x\n", |
| writeval); |
| } |
| break; |
| case 2: |
| /* Better regulatory don't increase any power diff */ |
| writeval = ((index < 2) ? pwrbase0 : pwrbase1); |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "Better regulatory, writeval = 0x%x\n", writeval); |
| break; |
| case 3: |
| /* Customer defined power diff. increase power diff |
| defined by customer. */ |
| chnlgroup = 0; |
| |
| if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) { |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "customer's limit, 40MHz = 0x%x\n", |
| rtlefuse->pwrgroup_ht40 |
| [RF90_PATH_A][chnl - 1]); |
| } else { |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "customer's limit, 20MHz = 0x%x\n", |
| rtlefuse->pwrgroup_ht20 |
| [RF90_PATH_A][chnl - 1]); |
| } |
| |
| for (i = 0; i < 4; i++) { |
| pwrdiff_limit[i] = (u8)((rtlphy->mcs_offset |
| [chnlgroup][index] & (0x7f << (i * 8))) |
| >> (i * 8)); |
| |
| if (rtlphy->current_chan_bw == |
| HT_CHANNEL_WIDTH_20_40) { |
| if (pwrdiff_limit[i] > |
| rtlefuse->pwrgroup_ht40 |
| [RF90_PATH_A][chnl - 1]) { |
| pwrdiff_limit[i] = |
| rtlefuse->pwrgroup_ht40 |
| [RF90_PATH_A][chnl - 1]; |
| } |
| } else { |
| if (pwrdiff_limit[i] > |
| rtlefuse->pwrgroup_ht20 |
| [RF90_PATH_A][chnl - 1]) { |
| pwrdiff_limit[i] = |
| rtlefuse->pwrgroup_ht20 |
| [RF90_PATH_A][chnl - 1]; |
| } |
| } |
| } |
| |
| customer_limit = (pwrdiff_limit[3] << 24) | |
| (pwrdiff_limit[2] << 16) | |
| (pwrdiff_limit[1] << 8) | |
| (pwrdiff_limit[0]); |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "Customer's limit = 0x%x\n", customer_limit); |
| |
| writeval = customer_limit + ((index < 2) ? |
| pwrbase0 : pwrbase1); |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "Customer, writeval = 0x%x\n", writeval); |
| break; |
| default: |
| chnlgroup = 0; |
| writeval = rtlphy->mcs_offset[chnlgroup][index] + |
| ((index < 2) ? pwrbase0 : pwrbase1); |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, |
| "RTK better performance, writeval = 0x%x\n", writeval); |
| break; |
| } |
| |
| if (rtlpriv->dm.dynamic_txhighpower_lvl == TX_HIGH_PWR_LEVEL_LEVEL1) |
| writeval = 0x10101010; |
| else if (rtlpriv->dm.dynamic_txhighpower_lvl == |
| TX_HIGH_PWR_LEVEL_LEVEL2) |
| writeval = 0x0; |
| |
| *p_outwrite_val = writeval; |
| |
| } |
| |
| static void _rtl92s_write_ofdm_powerreg(struct ieee80211_hw *hw, |
| u8 index, u32 val) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); |
| u16 regoffset[6] = {0xe00, 0xe04, 0xe10, 0xe14, 0xe18, 0xe1c}; |
| u8 i, rfa_pwr[4]; |
| u8 rfa_lower_bound = 0, rfa_upper_bound = 0, rf_pwr_diff = 0; |
| u32 writeval = val; |
| |
| /* If path A and Path B coexist, we must limit Path A tx power. |
| * Protect Path B pwr over or under flow. We need to calculate |
| * upper and lower bound of path A tx power. */ |
| if (rtlphy->rf_type == RF_2T2R) { |
| rf_pwr_diff = rtlefuse->antenna_txpwdiff[0]; |
| |
| /* Diff=-8~-1 */ |
| if (rf_pwr_diff >= 8) { |
| /* Prevent underflow!! */ |
| rfa_lower_bound = 0x10 - rf_pwr_diff; |
| /* if (rf_pwr_diff >= 0) Diff = 0-7 */ |
| } else { |
| rfa_upper_bound = RF6052_MAX_TX_PWR - rf_pwr_diff; |
| } |
| } |
| |
| for (i = 0; i < 4; i++) { |
| rfa_pwr[i] = (u8)((writeval & (0x7f << (i * 8))) >> (i * 8)); |
| if (rfa_pwr[i] > RF6052_MAX_TX_PWR) |
| rfa_pwr[i] = RF6052_MAX_TX_PWR; |
| |
| /* If path A and Path B coexist, we must limit Path A tx power. |
| * Protect Path B pwr over or under flow. We need to calculate |
| * upper and lower bound of path A tx power. */ |
| if (rtlphy->rf_type == RF_2T2R) { |
| /* Diff=-8~-1 */ |
| if (rf_pwr_diff >= 8) { |
| /* Prevent underflow!! */ |
| if (rfa_pwr[i] < rfa_lower_bound) |
| rfa_pwr[i] = rfa_lower_bound; |
| /* Diff = 0-7 */ |
| } else if (rf_pwr_diff >= 1) { |
| /* Prevent overflow */ |
| if (rfa_pwr[i] > rfa_upper_bound) |
| rfa_pwr[i] = rfa_upper_bound; |
| } |
| } |
| |
| } |
| |
| writeval = (rfa_pwr[3] << 24) | (rfa_pwr[2] << 16) | (rfa_pwr[1] << 8) | |
| rfa_pwr[0]; |
| |
| rtl_set_bbreg(hw, regoffset[index], 0x7f7f7f7f, writeval); |
| } |
| |
| void rtl92s_phy_rf6052_set_ofdmtxpower(struct ieee80211_hw *hw, |
| u8 *p_pwrlevel, u8 chnl) |
| { |
| u32 writeval, pwrbase0, pwrbase1; |
| u8 index = 0; |
| u8 finalpwr_idx[4]; |
| |
| _rtl92s_get_powerbase(hw, p_pwrlevel, chnl, &pwrbase0, &pwrbase1, |
| &finalpwr_idx[0]); |
| _rtl92s_set_antennadiff(hw, &finalpwr_idx[0]); |
| |
| for (index = 0; index < 6; index++) { |
| _rtl92s_get_txpower_writeval_byregulatory(hw, chnl, index, |
| pwrbase0, pwrbase1, &writeval); |
| |
| _rtl92s_write_ofdm_powerreg(hw, index, writeval); |
| } |
| } |
| |
| void rtl92s_phy_rf6052_set_ccktxpower(struct ieee80211_hw *hw, u8 pwrlevel) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); |
| struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); |
| u32 txagc = 0; |
| bool dont_inc_cck_or_turboscanoff = false; |
| |
| if (((rtlefuse->eeprom_version >= 2) && |
| (rtlefuse->txpwr_safetyflag == 1)) || |
| ((rtlefuse->eeprom_version >= 2) && |
| (rtlefuse->eeprom_regulatory != 0))) |
| dont_inc_cck_or_turboscanoff = true; |
| |
| if (mac->act_scanning) { |
| txagc = 0x3f; |
| if (dont_inc_cck_or_turboscanoff) |
| txagc = pwrlevel; |
| } else { |
| txagc = pwrlevel; |
| |
| if (rtlpriv->dm.dynamic_txhighpower_lvl == |
| TX_HIGH_PWR_LEVEL_LEVEL1) |
| txagc = 0x10; |
| else if (rtlpriv->dm.dynamic_txhighpower_lvl == |
| TX_HIGH_PWR_LEVEL_LEVEL2) |
| txagc = 0x0; |
| } |
| |
| if (txagc > RF6052_MAX_TX_PWR) |
| txagc = RF6052_MAX_TX_PWR; |
| |
| rtl_set_bbreg(hw, RTXAGC_CCK_MCS32, BTX_AGCRATECCK, txagc); |
| |
| } |
| |
| bool rtl92s_phy_rf6052_config(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| u32 u4reg_val = 0; |
| u8 rfpath; |
| bool rtstatus = true; |
| struct bb_reg_def *pphyreg; |
| |
| /* Initialize RF */ |
| for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) { |
| |
| pphyreg = &rtlphy->phyreg_def[rfpath]; |
| |
| /* Store original RFENV control type */ |
| switch (rfpath) { |
| case RF90_PATH_A: |
| case RF90_PATH_C: |
| u4reg_val = rtl92s_phy_query_bb_reg(hw, |
| pphyreg->rfintfs, |
| BRFSI_RFENV); |
| break; |
| case RF90_PATH_B: |
| case RF90_PATH_D: |
| u4reg_val = rtl92s_phy_query_bb_reg(hw, |
| pphyreg->rfintfs, |
| BRFSI_RFENV << 16); |
| break; |
| } |
| |
| /* Set RF_ENV enable */ |
| rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfe, |
| BRFSI_RFENV << 16, 0x1); |
| |
| /* Set RF_ENV output high */ |
| rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1); |
| |
| /* Set bit number of Address and Data for RF register */ |
| rtl92s_phy_set_bb_reg(hw, pphyreg->rfhssi_para2, |
| B3WIRE_ADDRESSLENGTH, 0x0); |
| rtl92s_phy_set_bb_reg(hw, pphyreg->rfhssi_para2, |
| B3WIRE_DATALENGTH, 0x0); |
| |
| /* Initialize RF fom connfiguration file */ |
| switch (rfpath) { |
| case RF90_PATH_A: |
| rtstatus = rtl92s_phy_config_rf(hw, |
| (enum radio_path)rfpath); |
| break; |
| case RF90_PATH_B: |
| rtstatus = rtl92s_phy_config_rf(hw, |
| (enum radio_path)rfpath); |
| break; |
| case RF90_PATH_C: |
| break; |
| case RF90_PATH_D: |
| break; |
| } |
| |
| /* Restore RFENV control type */ |
| switch (rfpath) { |
| case RF90_PATH_A: |
| case RF90_PATH_C: |
| rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfs, BRFSI_RFENV, |
| u4reg_val); |
| break; |
| case RF90_PATH_B: |
| case RF90_PATH_D: |
| rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfs, |
| BRFSI_RFENV << 16, |
| u4reg_val); |
| break; |
| } |
| |
| if (!rtstatus) { |
| pr_err("Radio[%d] Fail!!\n", rfpath); |
| goto fail; |
| } |
| |
| } |
| |
| return rtstatus; |
| |
| fail: |
| return rtstatus; |
| } |
| |
| void rtl92s_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| |
| switch (bandwidth) { |
| case HT_CHANNEL_WIDTH_20: |
| rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] & |
| 0xfffff3ff) | 0x0400); |
| rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK, |
| rtlphy->rfreg_chnlval[0]); |
| break; |
| case HT_CHANNEL_WIDTH_20_40: |
| rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] & |
| 0xfffff3ff)); |
| rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK, |
| rtlphy->rfreg_chnlval[0]); |
| break; |
| default: |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "unknown bandwidth: %#X\n", bandwidth); |
| break; |
| } |
| } |
