[PATCH v2 10/12] wifi: rtlwifi: Add rtl8192du/dm.{c,h}

Bitterblue Smith
2024-03-17T18:54:57Z

These contain functions related to the dynamic mechanism, which runs
every two seconds to adjust to changes in the environment.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
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
--
2.43.2