diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c | 1099 |
1 files changed, 1099 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c new file mode 100644 index 000000000..997ff115b --- /dev/null +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c @@ -0,0 +1,1099 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2009-2014 Realtek Corporation.*/ + +#include "../wifi.h" +#include "../base.h" +#include "../pci.h" +#include "../core.h" +#include "reg.h" +#include "def.h" +#include "phy.h" +#include "dm.h" +#include "fw.h" +#include "trx.h" + +static void rtl92ee_dm_false_alarm_counter_statistics(struct ieee80211_hw *hw) +{ + u32 ret_value; + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct false_alarm_statistics *falsealm_cnt = &rtlpriv->falsealm_cnt; + + rtl_set_bbreg(hw, DM_REG_OFDM_FA_HOLDC_11N, BIT(31), 1); + rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(31), 1); + + ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE1_11N, MASKDWORD); + falsealm_cnt->cnt_fast_fsync_fail = (ret_value & 0xffff); + falsealm_cnt->cnt_sb_search_fail = ((ret_value & 0xffff0000) >> 16); + + ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE2_11N, MASKDWORD); + falsealm_cnt->cnt_ofdm_cca = (ret_value & 0xffff); + falsealm_cnt->cnt_parity_fail = ((ret_value & 0xffff0000) >> 16); + + ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE3_11N, MASKDWORD); + falsealm_cnt->cnt_rate_illegal = (ret_value & 0xffff); + falsealm_cnt->cnt_crc8_fail = ((ret_value & 0xffff0000) >> 16); + + ret_value = rtl_get_bbreg(hw, DM_REG_OFDM_FA_TYPE4_11N, MASKDWORD); + falsealm_cnt->cnt_mcs_fail = (ret_value & 0xffff); + + falsealm_cnt->cnt_ofdm_fail = falsealm_cnt->cnt_parity_fail + + falsealm_cnt->cnt_rate_illegal + + falsealm_cnt->cnt_crc8_fail + + falsealm_cnt->cnt_mcs_fail + + falsealm_cnt->cnt_fast_fsync_fail + + falsealm_cnt->cnt_sb_search_fail; + + ret_value = rtl_get_bbreg(hw, DM_REG_SC_CNT_11N, MASKDWORD); + falsealm_cnt->cnt_bw_lsc = (ret_value & 0xffff); + falsealm_cnt->cnt_bw_usc = ((ret_value & 0xffff0000) >> 16); + + rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(12), 1); + rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(14), 1); + + ret_value = rtl_get_bbreg(hw, DM_REG_CCK_FA_LSB_11N, MASKBYTE0); + falsealm_cnt->cnt_cck_fail = ret_value; + + ret_value = rtl_get_bbreg(hw, DM_REG_CCK_FA_MSB_11N, MASKBYTE3); + falsealm_cnt->cnt_cck_fail += (ret_value & 0xff) << 8; + + ret_value = rtl_get_bbreg(hw, DM_REG_CCK_CCA_CNT_11N, MASKDWORD); + falsealm_cnt->cnt_cck_cca = ((ret_value & 0xff) << 8) | + ((ret_value & 0xFF00) >> 8); + + falsealm_cnt->cnt_all = falsealm_cnt->cnt_fast_fsync_fail + + falsealm_cnt->cnt_sb_search_fail + + falsealm_cnt->cnt_parity_fail + + falsealm_cnt->cnt_rate_illegal + + falsealm_cnt->cnt_crc8_fail + + falsealm_cnt->cnt_mcs_fail + + falsealm_cnt->cnt_cck_fail; + + falsealm_cnt->cnt_cca_all = falsealm_cnt->cnt_ofdm_cca + + falsealm_cnt->cnt_cck_cca; + + /*reset false alarm counter registers*/ + rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTC_11N, BIT(31), 1); + rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTC_11N, BIT(31), 0); + rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(27), 1); + rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(27), 0); + /*update ofdm counter*/ + rtl_set_bbreg(hw, DM_REG_OFDM_FA_HOLDC_11N, BIT(31), 0); + rtl_set_bbreg(hw, DM_REG_OFDM_FA_RSTD_11N, BIT(31), 0); + /*reset CCK CCA counter*/ + rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(13) | BIT(12), 0); + rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(13) | BIT(12), 2); + /*reset CCK FA counter*/ + rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(15) | BIT(14), 0); + rtl_set_bbreg(hw, DM_REG_CCK_FA_RST_11N, BIT(15) | BIT(14), 2); + + rtl_dbg(rtlpriv, COMP_DIG, DBG_TRACE, + "cnt_parity_fail = %d, cnt_rate_illegal = %d, cnt_crc8_fail = %d, cnt_mcs_fail = %d\n", + falsealm_cnt->cnt_parity_fail, + falsealm_cnt->cnt_rate_illegal, + falsealm_cnt->cnt_crc8_fail, falsealm_cnt->cnt_mcs_fail); + + rtl_dbg(rtlpriv, COMP_DIG, DBG_TRACE, + "cnt_ofdm_fail = %x, cnt_cck_fail = %x, cnt_all = %x\n", + falsealm_cnt->cnt_ofdm_fail, + falsealm_cnt->cnt_cck_fail, falsealm_cnt->cnt_all); +} + +static void rtl92ee_dm_cck_packet_detection_thresh(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct dig_t *dm_dig = &rtlpriv->dm_digtable; + u8 cur_cck_cca_thresh; + + if (rtlpriv->mac80211.link_state >= MAC80211_LINKED) { + if (dm_dig->rssi_val_min > 25) { + cur_cck_cca_thresh = 0xcd; + } else if ((dm_dig->rssi_val_min <= 25) && + (dm_dig->rssi_val_min > 10)) { + cur_cck_cca_thresh = 0x83; + } else { + if (rtlpriv->falsealm_cnt.cnt_cck_fail > 1000) + cur_cck_cca_thresh = 0x83; + else + cur_cck_cca_thresh = 0x40; + } + } else { + if (rtlpriv->falsealm_cnt.cnt_cck_fail > 1000) + cur_cck_cca_thresh = 0x83; + else + cur_cck_cca_thresh = 0x40; + } + rtl92ee_dm_write_cck_cca_thres(hw, cur_cck_cca_thresh); +} + +static void rtl92ee_dm_dig(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct dig_t *dm_dig = &rtlpriv->dm_digtable; + u8 dig_min_0, dig_maxofmin; + bool bfirstconnect , bfirstdisconnect; + u8 dm_dig_max, dm_dig_min; + u8 current_igi = dm_dig->cur_igvalue; + u8 offset; + + /* AP,BT */ + if (mac->act_scanning) + return; + + dig_min_0 = dm_dig->dig_min_0; + bfirstconnect = (mac->link_state >= MAC80211_LINKED) && + !dm_dig->media_connect_0; + bfirstdisconnect = (mac->link_state < MAC80211_LINKED) && + dm_dig->media_connect_0; + + dm_dig_max = 0x5a; + dm_dig_min = DM_DIG_MIN; + dig_maxofmin = DM_DIG_MAX_AP; + + if (mac->link_state >= MAC80211_LINKED) { + if ((dm_dig->rssi_val_min + 10) > dm_dig_max) + dm_dig->rx_gain_max = dm_dig_max; + else if ((dm_dig->rssi_val_min + 10) < dm_dig_min) + dm_dig->rx_gain_max = dm_dig_min; + else + dm_dig->rx_gain_max = dm_dig->rssi_val_min + 10; + + if (rtlpriv->dm.one_entry_only) { + offset = 0; + if (dm_dig->rssi_val_min - offset < dm_dig_min) + dig_min_0 = dm_dig_min; + else if (dm_dig->rssi_val_min - offset > + dig_maxofmin) + dig_min_0 = dig_maxofmin; + else + dig_min_0 = dm_dig->rssi_val_min - offset; + } else { + dig_min_0 = dm_dig_min; + } + + } else { + dm_dig->rx_gain_max = dm_dig_max; + dig_min_0 = dm_dig_min; + rtl_dbg(rtlpriv, COMP_DIG, DBG_LOUD, "no link\n"); + } + + if (rtlpriv->falsealm_cnt.cnt_all > 10000) { + if (dm_dig->large_fa_hit != 3) + dm_dig->large_fa_hit++; + if (dm_dig->forbidden_igi < current_igi) { + dm_dig->forbidden_igi = current_igi; + dm_dig->large_fa_hit = 1; + } + + if (dm_dig->large_fa_hit >= 3) { + if (dm_dig->forbidden_igi + 1 > dm_dig->rx_gain_max) + dm_dig->rx_gain_min = + dm_dig->rx_gain_max; + else + dm_dig->rx_gain_min = + dm_dig->forbidden_igi + 1; + dm_dig->recover_cnt = 3600; + } + } else { + if (dm_dig->recover_cnt != 0) { + dm_dig->recover_cnt--; + } else { + if (dm_dig->large_fa_hit < 3) { + if ((dm_dig->forbidden_igi - 1) < + dig_min_0) { + dm_dig->forbidden_igi = dig_min_0; + dm_dig->rx_gain_min = + dig_min_0; + } else { + dm_dig->forbidden_igi--; + dm_dig->rx_gain_min = + dm_dig->forbidden_igi + 1; + } + } else { + dm_dig->large_fa_hit = 0; + } + } + } + + if (rtlpriv->dm.dbginfo.num_qry_beacon_pkt < 5) + dm_dig->rx_gain_min = dm_dig_min; + + if (dm_dig->rx_gain_min > dm_dig->rx_gain_max) + dm_dig->rx_gain_min = dm_dig->rx_gain_max; + + if (mac->link_state >= MAC80211_LINKED) { + if (bfirstconnect) { + if (dm_dig->rssi_val_min <= dig_maxofmin) + current_igi = dm_dig->rssi_val_min; + else + current_igi = dig_maxofmin; + + dm_dig->large_fa_hit = 0; + } else { + if (rtlpriv->falsealm_cnt.cnt_all > DM_DIG_FA_TH2) + current_igi += 4; + else if (rtlpriv->falsealm_cnt.cnt_all > DM_DIG_FA_TH1) + current_igi += 2; + else if (rtlpriv->falsealm_cnt.cnt_all < DM_DIG_FA_TH0) + current_igi -= 2; + + if (rtlpriv->dm.dbginfo.num_qry_beacon_pkt < 5 && + rtlpriv->falsealm_cnt.cnt_all < DM_DIG_FA_TH1) + current_igi = dm_dig->rx_gain_min; + } + } else { + if (bfirstdisconnect) { + current_igi = dm_dig->rx_gain_min; + } else { + if (rtlpriv->falsealm_cnt.cnt_all > 10000) + current_igi += 4; + else if (rtlpriv->falsealm_cnt.cnt_all > 8000) + current_igi += 2; + else if (rtlpriv->falsealm_cnt.cnt_all < 500) + current_igi -= 2; + } + } + + if (current_igi > dm_dig->rx_gain_max) + current_igi = dm_dig->rx_gain_max; + if (current_igi < dm_dig->rx_gain_min) + current_igi = dm_dig->rx_gain_min; + + rtl92ee_dm_write_dig(hw , current_igi); + dm_dig->media_connect_0 = ((mac->link_state >= MAC80211_LINKED) ? + true : false); + dm_dig->dig_min_0 = dig_min_0; +} + +void rtl92ee_dm_write_cck_cca_thres(struct ieee80211_hw *hw, u8 cur_thres) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct dig_t *dm_dig = &rtlpriv->dm_digtable; + + if (dm_dig->cur_cck_cca_thres != cur_thres) + rtl_write_byte(rtlpriv, DM_REG_CCK_CCA_11N, cur_thres); + + dm_dig->pre_cck_cca_thres = dm_dig->cur_cck_cca_thres; + dm_dig->cur_cck_cca_thres = cur_thres; +} + +void rtl92ee_dm_write_dig(struct ieee80211_hw *hw, u8 current_igi) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct dig_t *dm_dig = &rtlpriv->dm_digtable; + + if (dm_dig->stop_dig) + return; + + if (dm_dig->cur_igvalue != current_igi) { + rtl_set_bbreg(hw, ROFDM0_XAAGCCORE1, 0x7f, current_igi); + if (rtlpriv->phy.rf_type != RF_1T1R) + rtl_set_bbreg(hw, ROFDM0_XBAGCCORE1, 0x7f, current_igi); + } + dm_dig->pre_igvalue = dm_dig->cur_igvalue; + dm_dig->cur_igvalue = current_igi; +} + +static void rtl92ee_rssi_dump_to_register(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + rtl_write_byte(rtlpriv, RA_RSSIDUMP, + rtlpriv->stats.rx_rssi_percentage[0]); + rtl_write_byte(rtlpriv, RB_RSSIDUMP, + rtlpriv->stats.rx_rssi_percentage[1]); + /*It seems the following values are not initialized. + *According to Windows code, + *these value will only be valid with JAGUAR chips + */ + /* Rx EVM */ + rtl_write_byte(rtlpriv, RS1_RXEVMDUMP, rtlpriv->stats.rx_evm_dbm[0]); + rtl_write_byte(rtlpriv, RS2_RXEVMDUMP, rtlpriv->stats.rx_evm_dbm[1]); + /* Rx SNR */ + rtl_write_byte(rtlpriv, RA_RXSNRDUMP, + (u8)(rtlpriv->stats.rx_snr_db[0])); + rtl_write_byte(rtlpriv, RB_RXSNRDUMP, + (u8)(rtlpriv->stats.rx_snr_db[1])); + /* Rx Cfo_Short */ + rtl_write_word(rtlpriv, RA_CFOSHORTDUMP, + rtlpriv->stats.rx_cfo_short[0]); + rtl_write_word(rtlpriv, RB_CFOSHORTDUMP, + rtlpriv->stats.rx_cfo_short[1]); + /* Rx Cfo_Tail */ + rtl_write_word(rtlpriv, RA_CFOLONGDUMP, rtlpriv->stats.rx_cfo_tail[0]); + rtl_write_word(rtlpriv, RB_CFOLONGDUMP, rtlpriv->stats.rx_cfo_tail[1]); +} + +static void rtl92ee_dm_find_minimum_rssi(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct dig_t *rtl_dm_dig = &rtlpriv->dm_digtable; + struct rtl_mac *mac = rtl_mac(rtlpriv); + + /* Determine the minimum RSSI */ + if ((mac->link_state < MAC80211_LINKED) && + (rtlpriv->dm.entry_min_undec_sm_pwdb == 0)) { + rtl_dm_dig->min_undec_pwdb_for_dm = 0; + rtl_dbg(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD, + "Not connected to any\n"); + } + if (mac->link_state >= MAC80211_LINKED) { + if (mac->opmode == NL80211_IFTYPE_AP || + mac->opmode == NL80211_IFTYPE_ADHOC) { + rtl_dm_dig->min_undec_pwdb_for_dm = + rtlpriv->dm.entry_min_undec_sm_pwdb; + rtl_dbg(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD, + "AP Client PWDB = 0x%lx\n", + rtlpriv->dm.entry_min_undec_sm_pwdb); + } else { + rtl_dm_dig->min_undec_pwdb_for_dm = + rtlpriv->dm.undec_sm_pwdb; + rtl_dbg(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD, + "STA Default Port PWDB = 0x%x\n", + rtl_dm_dig->min_undec_pwdb_for_dm); + } + } else { + rtl_dm_dig->min_undec_pwdb_for_dm = + rtlpriv->dm.entry_min_undec_sm_pwdb; + rtl_dbg(rtlpriv, COMP_BB_POWERSAVING, DBG_LOUD, + "AP Ext Port or disconnect PWDB = 0x%x\n", + rtl_dm_dig->min_undec_pwdb_for_dm); + } + rtl_dbg(rtlpriv, COMP_DIG, DBG_LOUD, + "MinUndecoratedPWDBForDM =%d\n", + rtl_dm_dig->min_undec_pwdb_for_dm); +} + +static void rtl92ee_dm_check_rssi_monitor(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct dig_t *dm_dig = &rtlpriv->dm_digtable; + struct rtl_mac *mac = rtl_mac(rtlpriv); + struct rtl_dm *dm = rtl_dm(rtlpriv); + struct rtl_sta_info *drv_priv; + u8 h2c[4] = { 0 }; + long max = 0, min = 0xff; + u8 i = 0; + + if (mac->opmode == NL80211_IFTYPE_AP || + mac->opmode == NL80211_IFTYPE_ADHOC || + mac->opmode == NL80211_IFTYPE_MESH_POINT) { + /* AP & ADHOC & MESH */ + spin_lock_bh(&rtlpriv->locks.entry_list_lock); + list_for_each_entry(drv_priv, &rtlpriv->entry_list, list) { + struct rssi_sta *stat = &drv_priv->rssi_stat; + + if (stat->undec_sm_pwdb < min) + min = stat->undec_sm_pwdb; + if (stat->undec_sm_pwdb > max) + max = stat->undec_sm_pwdb; + + h2c[3] = 0; + h2c[2] = (u8)(dm->undec_sm_pwdb & 0xFF); + h2c[1] = 0x20; + h2c[0] = ++i; + rtl92ee_fill_h2c_cmd(hw, H2C_92E_RSSI_REPORT, 4, h2c); + } + spin_unlock_bh(&rtlpriv->locks.entry_list_lock); + + /* If associated entry is found */ + if (max != 0) { + dm->entry_max_undec_sm_pwdb = max; + RTPRINT(rtlpriv, FDM, DM_PWDB, + "EntryMaxPWDB = 0x%lx(%ld)\n", max, max); + } else { + dm->entry_max_undec_sm_pwdb = 0; + } + /* If associated entry is found */ + if (min != 0xff) { + dm->entry_min_undec_sm_pwdb = min; + RTPRINT(rtlpriv, FDM, DM_PWDB, + "EntryMinPWDB = 0x%lx(%ld)\n", min, min); + } else { + dm->entry_min_undec_sm_pwdb = 0; + } + } + + /* Indicate Rx signal strength to FW. */ + if (dm->useramask) { + h2c[3] = 0; + h2c[2] = (u8)(dm->undec_sm_pwdb & 0xFF); + h2c[1] = 0x20; + h2c[0] = 0; + rtl92ee_fill_h2c_cmd(hw, H2C_92E_RSSI_REPORT, 4, h2c); + } else { + rtl_write_byte(rtlpriv, 0x4fe, dm->undec_sm_pwdb); + } + rtl92ee_rssi_dump_to_register(hw); + rtl92ee_dm_find_minimum_rssi(hw); + dm_dig->rssi_val_min = rtlpriv->dm_digtable.min_undec_pwdb_for_dm; +} + +static void rtl92ee_dm_init_primary_cca_check(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_hal *rtlhal = rtl_hal(rtlpriv); + struct dynamic_primary_cca *primarycca = &rtlpriv->primarycca; + + rtlhal->rts_en = 0; + primarycca->dup_rts_flag = 0; + primarycca->intf_flag = 0; + primarycca->intf_type = 0; + primarycca->monitor_flag = 0; + primarycca->ch_offset = 0; + primarycca->mf_state = 0; +} + +static bool rtl92ee_dm_is_edca_turbo_disable(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + if (rtlpriv->mac80211.mode == WIRELESS_MODE_B) + return true; + + return false; +} + +void rtl92ee_dm_init_edca_turbo(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + rtlpriv->dm.current_turbo_edca = false; + rtlpriv->dm.is_cur_rdlstate = false; + rtlpriv->dm.is_any_nonbepkts = false; +} + +static void rtl92ee_dm_check_edca_turbo(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + static u64 last_txok_cnt; + static u64 last_rxok_cnt; + u64 cur_txok_cnt = 0; + u64 cur_rxok_cnt = 0; + u32 edca_be_ul = 0x5ea42b; + u32 edca_be_dl = 0x5ea42b; /*not sure*/ + u32 edca_be = 0x5ea42b; + bool is_cur_rdlstate; + bool b_edca_turbo_on = false; + + if (rtlpriv->dm.dbginfo.num_non_be_pkt > 0x100) + rtlpriv->dm.is_any_nonbepkts = true; + rtlpriv->dm.dbginfo.num_non_be_pkt = 0; + + cur_txok_cnt = rtlpriv->stats.txbytesunicast - last_txok_cnt; + cur_rxok_cnt = rtlpriv->stats.rxbytesunicast - last_rxok_cnt; + + /*b_bias_on_rx = false;*/ + b_edca_turbo_on = ((!rtlpriv->dm.is_any_nonbepkts) && + (!rtlpriv->dm.disable_framebursting)) ? + true : false; + + if (rtl92ee_dm_is_edca_turbo_disable(hw)) + goto check_exit; + + if (b_edca_turbo_on) { + is_cur_rdlstate = (cur_rxok_cnt > cur_txok_cnt * 4) ? + true : false; + + edca_be = is_cur_rdlstate ? edca_be_dl : edca_be_ul; + rtl_write_dword(rtlpriv , REG_EDCA_BE_PARAM , edca_be); + rtlpriv->dm.is_cur_rdlstate = is_cur_rdlstate; + rtlpriv->dm.current_turbo_edca = true; + } else { + if (rtlpriv->dm.current_turbo_edca) { + u8 tmp = AC0_BE; + + rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AC_PARAM, + (u8 *)(&tmp)); + } + rtlpriv->dm.current_turbo_edca = false; + } + +check_exit: + rtlpriv->dm.is_any_nonbepkts = false; + last_txok_cnt = rtlpriv->stats.txbytesunicast; + last_rxok_cnt = rtlpriv->stats.rxbytesunicast; +} + +static void rtl92ee_dm_dynamic_edcca(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u8 reg_c50 , reg_c58; + bool fw_current_in_ps_mode = false; + + rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_FW_PSMODE_STATUS, + (u8 *)(&fw_current_in_ps_mode)); + if (fw_current_in_ps_mode) + return; + + reg_c50 = rtl_get_bbreg(hw, ROFDM0_XAAGCCORE1, MASKBYTE0); + reg_c58 = rtl_get_bbreg(hw, ROFDM0_XBAGCCORE1, MASKBYTE0); + + if (reg_c50 > 0x28 && reg_c58 > 0x28) { + if (!rtlpriv->rtlhal.pre_edcca_enable) { + rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD, 0x03); + rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD + 2, 0x00); + rtlpriv->rtlhal.pre_edcca_enable = true; + } + } else if (reg_c50 < 0x25 && reg_c58 < 0x25) { + if (rtlpriv->rtlhal.pre_edcca_enable) { + rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD, 0x7f); + rtl_write_byte(rtlpriv, ROFDM0_ECCATHRESHOLD + 2, 0x7f); + rtlpriv->rtlhal.pre_edcca_enable = false; + } + } +} + +static void rtl92ee_dm_adaptivity(struct ieee80211_hw *hw) +{ + rtl92ee_dm_dynamic_edcca(hw); +} + +static void rtl92ee_dm_write_dynamic_cca(struct ieee80211_hw *hw, + u8 cur_mf_state) +{ + struct dynamic_primary_cca *primarycca = &rtl_priv(hw)->primarycca; + + if (primarycca->mf_state != cur_mf_state) + rtl_set_bbreg(hw, DM_REG_L1SBD_PD_CH_11N, BIT(8) | BIT(7), + cur_mf_state); + + primarycca->mf_state = cur_mf_state; +} + +static void rtl92ee_dm_dynamic_primary_cca_ckeck(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct false_alarm_statistics *falsealm_cnt = &rtlpriv->falsealm_cnt; + struct dynamic_primary_cca *primarycca = &rtlpriv->primarycca; + bool is40mhz = false; + u64 ofdm_cca, ofdm_fa, bw_usc_cnt, bw_lsc_cnt; + u8 sec_ch_offset; + u8 cur_mf_state; + static u8 count_down = MONITOR_TIME; + + ofdm_cca = falsealm_cnt->cnt_ofdm_cca; + ofdm_fa = falsealm_cnt->cnt_ofdm_fail; + bw_usc_cnt = falsealm_cnt->cnt_bw_usc; + bw_lsc_cnt = falsealm_cnt->cnt_bw_lsc; + is40mhz = rtlpriv->mac80211.bw_40; + sec_ch_offset = rtlpriv->mac80211.cur_40_prime_sc; + /* NIC: 2: sec is below, 1: sec is above */ + + if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) { + cur_mf_state = MF_USC_LSC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + return; + } + + if (rtlpriv->mac80211.link_state < MAC80211_LINKED) + return; + + if (is40mhz) + return; + + if (primarycca->pricca_flag == 0) { + /* Primary channel is above + * NOTE: duplicate CTS can remove this condition + */ + if (sec_ch_offset == 2) { + if ((ofdm_cca > OFDMCCA_TH) && + (bw_lsc_cnt > (bw_usc_cnt + BW_IND_BIAS)) && + (ofdm_fa > (ofdm_cca >> 1))) { + primarycca->intf_type = 1; + primarycca->intf_flag = 1; + cur_mf_state = MF_USC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + primarycca->pricca_flag = 1; + } else if ((ofdm_cca > OFDMCCA_TH) && + (bw_lsc_cnt > (bw_usc_cnt + BW_IND_BIAS)) && + (ofdm_fa < (ofdm_cca >> 1))) { + primarycca->intf_type = 2; + primarycca->intf_flag = 1; + cur_mf_state = MF_USC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + primarycca->pricca_flag = 1; + primarycca->dup_rts_flag = 1; + rtlpriv->rtlhal.rts_en = 1; + } else { + primarycca->intf_type = 0; + primarycca->intf_flag = 0; + cur_mf_state = MF_USC_LSC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + rtlpriv->rtlhal.rts_en = 0; + primarycca->dup_rts_flag = 0; + } + } else if (sec_ch_offset == 1) { + if ((ofdm_cca > OFDMCCA_TH) && + (bw_usc_cnt > (bw_lsc_cnt + BW_IND_BIAS)) && + (ofdm_fa > (ofdm_cca >> 1))) { + primarycca->intf_type = 1; + primarycca->intf_flag = 1; + cur_mf_state = MF_LSC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + primarycca->pricca_flag = 1; + } else if ((ofdm_cca > OFDMCCA_TH) && + (bw_usc_cnt > (bw_lsc_cnt + BW_IND_BIAS)) && + (ofdm_fa < (ofdm_cca >> 1))) { + primarycca->intf_type = 2; + primarycca->intf_flag = 1; + cur_mf_state = MF_LSC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + primarycca->pricca_flag = 1; + primarycca->dup_rts_flag = 1; + rtlpriv->rtlhal.rts_en = 1; + } else { + primarycca->intf_type = 0; + primarycca->intf_flag = 0; + cur_mf_state = MF_USC_LSC; + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + rtlpriv->rtlhal.rts_en = 0; + primarycca->dup_rts_flag = 0; + } + } + } else {/* PrimaryCCA->PriCCA_flag==1 */ + count_down--; + if (count_down == 0) { + count_down = MONITOR_TIME; + primarycca->pricca_flag = 0; + cur_mf_state = MF_USC_LSC; + /* default */ + rtl92ee_dm_write_dynamic_cca(hw, cur_mf_state); + rtlpriv->rtlhal.rts_en = 0; + primarycca->dup_rts_flag = 0; + primarycca->intf_type = 0; + primarycca->intf_flag = 0; + } + } +} + +static void rtl92ee_dm_dynamic_atc_switch(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_dm *rtldm = rtl_dm(rtl_priv(hw)); + u8 crystal_cap; + u32 packet_count; + int cfo_khz_a , cfo_khz_b , cfo_ave = 0, adjust_xtal = 0; + int cfo_ave_diff; + + if (rtlpriv->mac80211.link_state < MAC80211_LINKED) { + if (rtldm->atc_status == ATC_STATUS_OFF) { + rtl_set_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11), + ATC_STATUS_ON); + rtldm->atc_status = ATC_STATUS_ON; + } + /* Disable CFO tracking for BT */ + if (rtlpriv->cfg->ops->get_btc_status()) { + if (!rtlpriv->btcoexist.btc_ops-> + btc_is_bt_disabled(rtlpriv)) { + rtl_dbg(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, + "odm_DynamicATCSwitch(): Disable CFO tracking for BT!!\n"); + return; + } + } + /* Reset Crystal Cap */ + if (rtldm->crystal_cap != rtlpriv->efuse.crystalcap) { + rtldm->crystal_cap = rtlpriv->efuse.crystalcap; + crystal_cap = rtldm->crystal_cap & 0x3f; + rtl_set_bbreg(hw, REG_MAC_PHY_CTRL, 0xFFF000, + (crystal_cap | (crystal_cap << 6))); + } + } else { + cfo_khz_a = (int)(rtldm->cfo_tail[0] * 3125) / 1280; + cfo_khz_b = (int)(rtldm->cfo_tail[1] * 3125) / 1280; + packet_count = rtldm->packet_count; + + if (packet_count == rtldm->packet_count_pre) + return; + + rtldm->packet_count_pre = packet_count; + + if (rtlpriv->phy.rf_type == RF_1T1R) + cfo_ave = cfo_khz_a; + else + cfo_ave = (int)(cfo_khz_a + cfo_khz_b) >> 1; + + cfo_ave_diff = (rtldm->cfo_ave_pre >= cfo_ave) ? + (rtldm->cfo_ave_pre - cfo_ave) : + (cfo_ave - rtldm->cfo_ave_pre); + + if (cfo_ave_diff > 20 && !rtldm->large_cfo_hit) { + rtldm->large_cfo_hit = true; + return; + } + rtldm->large_cfo_hit = false; + + rtldm->cfo_ave_pre = cfo_ave; + + if (cfo_ave >= -rtldm->cfo_threshold && + cfo_ave <= rtldm->cfo_threshold && rtldm->is_freeze == 0) { + if (rtldm->cfo_threshold == CFO_THRESHOLD_XTAL) { + rtldm->cfo_threshold = CFO_THRESHOLD_XTAL + 10; + rtldm->is_freeze = 1; + } else { + rtldm->cfo_threshold = CFO_THRESHOLD_XTAL; + } + } + + if (cfo_ave > rtldm->cfo_threshold && rtldm->crystal_cap < 0x3f) + adjust_xtal = ((cfo_ave - CFO_THRESHOLD_XTAL) >> 2) + 1; + else if ((cfo_ave < -rtlpriv->dm.cfo_threshold) && + rtlpriv->dm.crystal_cap > 0) + adjust_xtal = ((cfo_ave + CFO_THRESHOLD_XTAL) >> 2) - 1; + + if (adjust_xtal != 0) { + rtldm->is_freeze = 0; + rtldm->crystal_cap += adjust_xtal; + + if (rtldm->crystal_cap > 0x3f) + rtldm->crystal_cap = 0x3f; + else if (rtldm->crystal_cap < 0) + rtldm->crystal_cap = 0; + + crystal_cap = rtldm->crystal_cap & 0x3f; + rtl_set_bbreg(hw, REG_MAC_PHY_CTRL, 0xFFF000, + (crystal_cap | (crystal_cap << 6))); + } + + if (cfo_ave < CFO_THRESHOLD_ATC && + cfo_ave > -CFO_THRESHOLD_ATC) { + if (rtldm->atc_status == ATC_STATUS_ON) { + rtl_set_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11), + ATC_STATUS_OFF); + rtldm->atc_status = ATC_STATUS_OFF; + } + } else { + if (rtldm->atc_status == ATC_STATUS_OFF) { + rtl_set_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11), + ATC_STATUS_ON); + rtldm->atc_status = ATC_STATUS_ON; + } + } + } +} + +static void rtl92ee_dm_init_txpower_tracking(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_dm *dm = rtl_dm(rtlpriv); + u8 path; + + dm->txpower_tracking = true; + dm->default_ofdm_index = 30; + dm->default_cck_index = 20; + + dm->swing_idx_cck_base = dm->default_cck_index; + dm->cck_index = dm->default_cck_index; + + for (path = RF90_PATH_A; path < MAX_RF_PATH; path++) { + dm->swing_idx_ofdm_base[path] = dm->default_ofdm_index; + dm->ofdm_index[path] = dm->default_ofdm_index; + dm->delta_power_index[path] = 0; + dm->delta_power_index_last[path] = 0; + dm->power_index_offset[path] = 0; + } +} + +void rtl92ee_dm_init_rate_adaptive_mask(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rate_adaptive *p_ra = &rtlpriv->ra; + + p_ra->ratr_state = DM_RATR_STA_INIT; + p_ra->pre_ratr_state = DM_RATR_STA_INIT; + + if (rtlpriv->dm.dm_type == DM_TYPE_BYDRIVER) + rtlpriv->dm.useramask = true; + else + rtlpriv->dm.useramask = false; + + p_ra->ldpc_thres = 35; + p_ra->use_ldpc = false; + p_ra->high_rssi_thresh_for_ra = 50; + p_ra->low_rssi_thresh_for_ra40m = 20; +} + +static bool _rtl92ee_dm_ra_state_check(struct ieee80211_hw *hw, + s32 rssi, u8 *ratr_state) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rate_adaptive *p_ra = &rtlpriv->ra; + const u8 go_up_gap = 5; + u32 high_rssithresh_for_ra = p_ra->high_rssi_thresh_for_ra; + u32 low_rssithresh_for_ra = p_ra->low_rssi_thresh_for_ra40m; + u8 state; + + /* Threshold Adjustment: + * when RSSI state trends to go up one or two levels, + * make sure RSSI is high enough. + * Here GoUpGap is added to solve + * the boundary's level alternation issue. + */ + switch (*ratr_state) { + case DM_RATR_STA_INIT: + case DM_RATR_STA_HIGH: + break; + case DM_RATR_STA_MIDDLE: + high_rssithresh_for_ra += go_up_gap; + break; + case DM_RATR_STA_LOW: + high_rssithresh_for_ra += go_up_gap; + low_rssithresh_for_ra += go_up_gap; + break; + default: + rtl_dbg(rtlpriv, COMP_RATR, DBG_DMESG, + "wrong rssi level setting %d !\n", *ratr_state); + break; + } + + /* Decide RATRState by RSSI. */ + if (rssi > high_rssithresh_for_ra) + state = DM_RATR_STA_HIGH; + else if (rssi > low_rssithresh_for_ra) + state = DM_RATR_STA_MIDDLE; + else + state = DM_RATR_STA_LOW; + + if (*ratr_state != state) { + *ratr_state = state; + return true; + } + + return false; +} + +static void rtl92ee_dm_refresh_rate_adaptive_mask(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct rate_adaptive *p_ra = &rtlpriv->ra; + struct ieee80211_sta *sta = NULL; + + if (is_hal_stop(rtlhal)) { + rtl_dbg(rtlpriv, COMP_RATE, DBG_LOUD, + "driver is going to unload\n"); + return; + } + + if (!rtlpriv->dm.useramask) { + rtl_dbg(rtlpriv, COMP_RATE, DBG_LOUD, + "driver does not control rate adaptive mask\n"); + return; + } + + if (mac->link_state == MAC80211_LINKED && + mac->opmode == NL80211_IFTYPE_STATION) { + if (rtlpriv->dm.undec_sm_pwdb < p_ra->ldpc_thres) { + p_ra->use_ldpc = true; + p_ra->lower_rts_rate = true; + } else if (rtlpriv->dm.undec_sm_pwdb > + (p_ra->ldpc_thres - 5)) { + p_ra->use_ldpc = false; + p_ra->lower_rts_rate = false; + } + if (_rtl92ee_dm_ra_state_check(hw, rtlpriv->dm.undec_sm_pwdb, + &p_ra->ratr_state)) { + rcu_read_lock(); + sta = rtl_find_sta(hw, mac->bssid); + if (sta) + rtlpriv->cfg->ops->update_rate_tbl(hw, sta, + p_ra->ratr_state, + true); + rcu_read_unlock(); + + p_ra->pre_ratr_state = p_ra->ratr_state; + } + } +} + +static void rtl92ee_dm_init_dynamic_atc_switch(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + rtlpriv->dm.crystal_cap = rtlpriv->efuse.crystalcap; + + rtlpriv->dm.atc_status = rtl_get_bbreg(hw, ROFDM1_CFOTRACKING, BIT(11)); + rtlpriv->dm.cfo_threshold = CFO_THRESHOLD_XTAL; +} + +void rtl92ee_dm_init(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u32 cur_igvalue = rtl_get_bbreg(hw, DM_REG_IGI_A_11N, DM_BIT_IGI_11N); + + rtlpriv->dm.dm_type = DM_TYPE_BYDRIVER; + + rtl_dm_diginit(hw, cur_igvalue); + rtl92ee_dm_init_rate_adaptive_mask(hw); + rtl92ee_dm_init_primary_cca_check(hw); + rtl92ee_dm_init_edca_turbo(hw); + rtl92ee_dm_init_txpower_tracking(hw); + rtl92ee_dm_init_dynamic_atc_switch(hw); +} + +static void rtl92ee_dm_common_info_self_update(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_sta_info *drv_priv; + u8 cnt = 0; + + rtlpriv->dm.one_entry_only = false; + + if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_STATION && + rtlpriv->mac80211.link_state >= MAC80211_LINKED) { + rtlpriv->dm.one_entry_only = true; + return; + } + + if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP || + rtlpriv->mac80211.opmode == NL80211_IFTYPE_ADHOC || + rtlpriv->mac80211.opmode == NL80211_IFTYPE_MESH_POINT) { + spin_lock_bh(&rtlpriv->locks.entry_list_lock); + list_for_each_entry(drv_priv, &rtlpriv->entry_list, list) { + cnt++; + } + spin_unlock_bh(&rtlpriv->locks.entry_list_lock); + + if (cnt == 1) + rtlpriv->dm.one_entry_only = true; + } +} + +void rtl92ee_dm_dynamic_arfb_select(struct ieee80211_hw *hw, + u8 rate, bool collision_state) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + if (rate >= DESC92C_RATEMCS8 && rate <= DESC92C_RATEMCS12) { + if (collision_state == 1) { + if (rate == DESC92C_RATEMCS12) { + rtl_write_dword(rtlpriv, REG_DARFRC, 0x0); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x07060501); + } else if (rate == DESC92C_RATEMCS11) { + rtl_write_dword(rtlpriv, REG_DARFRC, 0x0); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x07070605); + } else if (rate == DESC92C_RATEMCS10) { + rtl_write_dword(rtlpriv, REG_DARFRC, 0x0); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x08080706); + } else if (rate == DESC92C_RATEMCS9) { + rtl_write_dword(rtlpriv, REG_DARFRC, 0x0); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x08080707); + } else { + rtl_write_dword(rtlpriv, REG_DARFRC, 0x0); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x09090808); + } + } else { /* collision_state == 0 */ + if (rate == DESC92C_RATEMCS12) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x05010000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x09080706); + } else if (rate == DESC92C_RATEMCS11) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x06050000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x09080807); + } else if (rate == DESC92C_RATEMCS10) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x07060000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x0a090908); + } else if (rate == DESC92C_RATEMCS9) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x07070000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x0a090808); + } else { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x08080000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x0b0a0909); + } + } + } else { /* MCS13~MCS15, 1SS, G-mode */ + if (collision_state == 1) { + if (rate == DESC92C_RATEMCS15) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x00000000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x05040302); + } else if (rate == DESC92C_RATEMCS14) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x00000000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x06050302); + } else if (rate == DESC92C_RATEMCS13) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x00000000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x07060502); + } else { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x00000000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x06050402); + } + } else{ /* collision_state == 0 */ + if (rate == DESC92C_RATEMCS15) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x03020000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x07060504); + } else if (rate == DESC92C_RATEMCS14) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x03020000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x08070605); + } else if (rate == DESC92C_RATEMCS13) { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x05020000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x09080706); + } else { + rtl_write_dword(rtlpriv, REG_DARFRC, + 0x04020000); + rtl_write_dword(rtlpriv, REG_DARFRC + 4, + 0x08070605); + } + } + } +} + +void rtl92ee_dm_watchdog(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + bool fw_current_inpsmode = false; + bool fw_ps_awake = true; + + rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_FW_PSMODE_STATUS, + (u8 *)(&fw_current_inpsmode)); + rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_FWLPS_RF_ON, + (u8 *)(&fw_ps_awake)); + if (ppsc->p2p_ps_info.p2p_ps_mode) + fw_ps_awake = false; + + spin_lock(&rtlpriv->locks.rf_ps_lock); + if ((ppsc->rfpwr_state == ERFON) && + ((!fw_current_inpsmode) && fw_ps_awake) && + (!ppsc->rfchange_inprogress)) { + rtl92ee_dm_common_info_self_update(hw); + rtl92ee_dm_false_alarm_counter_statistics(hw); + rtl92ee_dm_check_rssi_monitor(hw); + rtl92ee_dm_dig(hw); + rtl92ee_dm_adaptivity(hw); + rtl92ee_dm_cck_packet_detection_thresh(hw); + rtl92ee_dm_refresh_rate_adaptive_mask(hw); + rtl92ee_dm_check_edca_turbo(hw); + rtl92ee_dm_dynamic_atc_switch(hw); + rtl92ee_dm_dynamic_primary_cca_ckeck(hw); + } + spin_unlock(&rtlpriv->locks.rf_ps_lock); +} |