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Signed-off-by: Bitterblue Smith --- Patch is new in v2, split from patch 3/3 in v1. --- .../wireless/realtek/rtlwifi/rtl8192du/dm.c | 125 ++++++++++++++++++ .../wireless/realtek/rtlwifi/rtl8192du/dm.h | 10 ++ 2 files changed, 135 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.c create mode 100644 drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.h diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.c new file mode 100644 index 000000000000..aa7032e0f71a --- /dev/null +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.c @@ -0,0 +1,125 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2009-2012 Realtek Corporation.*/ + +#include "../wifi.h" +#include "../base.h" +#include "../core.h" +#include "../rtl8192d/reg.h" +#include "../rtl8192d/def.h" +#include "../rtl8192d/dm_common.h" +#include "../rtl8192d/fw_common.h" +#include "../rtl8192d/phy_common.h" +#include "phy.h" +#include "dm.h" +#include "fw.h" + +#define UNDEC_SM_PWDB entry_min_undec_sm_pwdb + +static void rtl92d_dm_init_1r_cca(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct ps_t *dm_pstable = &rtlpriv->dm_pstable; + + dm_pstable->pre_ccastate = CCA_MAX; + dm_pstable->cur_ccasate = CCA_MAX; +} + +static void rtl92d_dm_1r_cca(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct ps_t *dm_pstable = &rtlpriv->dm_pstable; + struct rtl_hal *rtlhal = rtl_hal(rtlpriv); + int pwdb = rtlpriv->dm_digtable.min_undec_pwdb_for_dm; + + if (rtlhal->macphymode != SINGLEMAC_SINGLEPHY || + rtlhal->current_bandtype != BAND_ON_5G) + return; + + if (pwdb != 0) { + if (dm_pstable->pre_ccastate == CCA_2R || + dm_pstable->pre_ccastate == CCA_MAX) + dm_pstable->cur_ccasate = (pwdb >= 35) ? CCA_1R : CCA_2R; + else + dm_pstable->cur_ccasate = (pwdb <= 30) ? CCA_2R : CCA_1R; + } else { + dm_pstable->cur_ccasate = CCA_MAX; + } + + if (dm_pstable->pre_ccastate == dm_pstable->cur_ccasate) + return; + + rtl_dbg(rtlpriv, COMP_BB_POWERSAVING, DBG_TRACE, + "Old CCA state: %d new CCA state: %d\n", + dm_pstable->pre_ccastate, dm_pstable->cur_ccasate); + + if (dm_pstable->cur_ccasate == CCA_1R) { + if (rtlpriv->phy.rf_type == RF_2T2R) + rtl_set_bbreg(hw, ROFDM0_TRXPATHENABLE, MASKBYTE0, 0x13); + else /* Is this branch reachable? */ + rtl_set_bbreg(hw, ROFDM0_TRXPATHENABLE, MASKBYTE0, 0x23); + } else { /* CCA_2R or CCA_MAX */ + rtl_set_bbreg(hw, ROFDM0_TRXPATHENABLE, MASKBYTE0, 0x33); + } +} + +static void rtl92d_dm_pwdb_monitor(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + const u32 max_macid = 32; + u32 temp; + + /* AP & ADHOC & MESH will return tmp */ + if (rtlpriv->mac80211.opmode != NL80211_IFTYPE_STATION) + return; + + /* Indicate Rx signal strength to FW. */ + if (rtlpriv->dm.useramask) { + temp = rtlpriv->dm.undec_sm_pwdb << 16; + temp |= max_macid << 8; + + rtl92d_fill_h2c_cmd(hw, H2C_RSSI_REPORT, 3, (u8 *)(&temp)); + } else { + rtl_write_byte(rtlpriv, 0x4fe, (u8)rtlpriv->dm.undec_sm_pwdb); + } +} + +void rtl92du_dm_init(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + rtlpriv->dm.dm_type = DM_TYPE_BYDRIVER; + rtl_dm_diginit(hw, 0x20); + rtlpriv->dm_digtable.rx_gain_max = DM_DIG_FA_UPPER; + rtlpriv->dm_digtable.rx_gain_min = DM_DIG_FA_LOWER; + rtl92d_dm_init_edca_turbo(hw); + rtl92d_dm_init_1r_cca(hw); + rtl92d_dm_init_rate_adaptive_mask(hw); + rtl92d_dm_initialize_txpower_tracking(hw); +} + +void rtl92du_dm_watchdog(struct ieee80211_hw *hw) +{ + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + bool fw_current_inpsmode = false; + bool fwps_awake = true; + + /* 1. RF is OFF. (No need to do DM.) + * 2. Fw is under power saving mode for FwLPS. + * (Prevent from SW/FW I/O racing.) + * 3. IPS workitem is scheduled. (Prevent from IPS sequence + * to be swapped with DM. + * 4. RFChangeInProgress is TRUE. + * (Prevent from broken by IPS/HW/SW Rf off.) + */ + + if (ppsc->rfpwr_state == ERFON && !fw_current_inpsmode && + fwps_awake && !ppsc->rfchange_inprogress) { + rtl92d_dm_pwdb_monitor(hw); + rtl92d_dm_false_alarm_counter_statistics(hw); + rtl92d_dm_find_minimum_rssi(hw); + rtl92d_dm_dig(hw); + rtl92d_dm_check_txpower_tracking_thermal_meter(hw); + rtl92d_dm_check_edca_turbo(hw); + rtl92d_dm_1r_cca(hw); + } +} diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.h b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.h new file mode 100644 index 000000000000..d036cf722384 --- /dev/null +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192du/dm.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2009-2012 Realtek Corporation.*/ + +#ifndef __RTL92C_DM_H__ +#define __RTL92C_DM_H__ + +void rtl92du_dm_init(struct ieee80211_hw *hw); +void rtl92du_dm_watchdog(struct ieee80211_hw *hw); + +#endif