rtlwifi: btcoex: Remove 23b 1ant configuration parameter

In file halbtc8723b1ant.c, there are directives that depend on an
undocumented configuration parameter BT_AUTO_REPORT_ONLY_8723B_1ANT
that cannot be set from Kconfig. This parameter is replaced by a
boolean in the main structure used by all routines. It still cannot
be changed dynamically, but it is easier to document.

The following routines are restored:
halbtc8723b1ant_bt_auto_report()
halbtc8723b1ant_set_bt_auto_report()
halbtc8723b1ant_action_wifi_only()
halbtc8723b1ant_monitor_bt_enable_disable()
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c

@@ -333,6 +333,35 @@ static void halbtc8723b1ant_update_bt_link_info(struct btc_coexist *btcoexist)
 		bt_link_info->hid_only = false;
 }
 
+static void halbtc8723b1ant_set_bt_auto_report(struct btc_coexist *btcoexist,
+					       bool enable_auto_report)
+{
+	u8 h2c_parameter[1] = {0};
+
+	h2c_parameter[0] = 0;
+
+	if (enable_auto_report)
+		h2c_parameter[0] |= BIT(0);
+
+	btcoexist->btc_fill_h2c(btcoexist, 0x68, 1, h2c_parameter);
+}
+
+static void halbtc8723b1ant_bt_auto_report(struct btc_coexist *btcoexist,
+					   bool force_exec,
+					   bool enable_auto_report)
+{
+	coex_dm->cur_bt_auto_report = enable_auto_report;
+
+	if (!force_exec) {
+		if (coex_dm->pre_bt_auto_report == coex_dm->cur_bt_auto_report)
+			return;
+	}
+	halbtc8723b1ant_set_bt_auto_report(btcoexist,
+					   coex_dm->cur_bt_auto_report);
+
+	coex_dm->pre_bt_auto_report = coex_dm->cur_bt_auto_report;
+}
+
 static void btc8723b1ant_set_sw_pen_tx_rate_adapt(struct btc_coexist *btcoexist,
 						  bool low_penalty_ra)
 {
@@ -1099,6 +1128,57 @@ static void halbtc8723b1ant_power_save_state(struct btc_coexist *btcoexist,
 	}
 }
 
+static void halbtc8723b1ant_action_wifi_only(struct btc_coexist *btcoexist)
+{
+	halbtc8723b1ant_coex_table_with_type(btcoexist, FORCE_EXEC, 0);
+	halbtc8723b1ant_ps_tdma(btcoexist, FORCE_EXEC, false, 8);
+	halbtc8723b1ant_set_ant_path(btcoexist, false, false, BTC_ANT_PATH_PTA);
+}
+
+/* check if BT is disabled */
+static void halbtc8723b1ant_monitor_bt_enable_disable(struct btc_coexist
+						      *btcoexist)
+{
+	struct rtl_priv *rtlpriv = btcoexist->adapter;
+	static u32 bt_disable_cnt;
+	bool bt_active = true, bt_disabled;
+
+	if (coex_sta->high_priority_tx == 0 &&
+	    coex_sta->high_priority_rx == 0 && coex_sta->low_priority_tx == 0 &&
+	    coex_sta->low_priority_rx == 0)
+		bt_active = false;
+	if (coex_sta->high_priority_tx == 0xffff &&
+	    coex_sta->high_priority_rx == 0xffff &&
+	    coex_sta->low_priority_tx == 0xffff &&
+	    coex_sta->low_priority_rx == 0xffff)
+		bt_active = false;
+	if (bt_active) {
+		bt_disable_cnt = 0;
+		bt_disabled = false;
+	} else {
+		bt_disable_cnt++;
+		if (bt_disable_cnt >= 2)
+			bt_disabled = true;
+	}
+	if (coex_sta->bt_disabled != bt_disabled) {
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BT is from %s to %s!!\n",
+			 (coex_sta->bt_disabled ? "disabled" : "enabled"),
+			 (bt_disabled ? "disabled" : "enabled"));
+
+		coex_sta->bt_disabled = bt_disabled;
+		btcoexist->btc_set(btcoexist, BTC_SET_BL_BT_DISABLE,
+				   &bt_disabled);
+		if (bt_disabled) {
+			halbtc8723b1ant_action_wifi_only(btcoexist);
+			btcoexist->btc_set(btcoexist, BTC_SET_ACT_LEAVE_LPS,
+					   NULL);
+			btcoexist->btc_set(btcoexist, BTC_SET_ACT_NORMAL_LPS,
+					   NULL);
+		}
+	}
+}
+
 /*****************************************************
  *
  *	Non-Software Coex Mechanism start
@@ -1638,6 +1718,7 @@ static void halbtc8723b1ant_init_hw_config(struct btc_coexist *btcoexist,
 void ex_halbtc8723b1ant_init_hwconfig(struct btc_coexist *btcoexist)
 {
 	halbtc8723b1ant_init_hw_config(btcoexist, true);
+	btcoexist->auto_report_1ant = true;
 }
 
 void ex_halbtc8723b1ant_init_coex_dm(struct btc_coexist *btcoexist)
@@ -1926,9 +2007,8 @@ void ex_halbtc8723b1ant_display_coex_info(struct btc_coexist *btcoexist)
 	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "\r\n %-35s = %d/ %d",
 		 "0x774(low-pri rx/tx)", coex_sta->low_priority_rx,
 		 coex_sta->low_priority_tx);
-#if (BT_AUTO_REPORT_ONLY_8723B_1ANT == 1)
+	if (btcoexist->auto_report_1ant)
 		halbtc8723b1ant_monitor_bt_ctr(btcoexist);
-#endif
 	btcoexist->btc_disp_dbg_msg(btcoexist, BTC_DBG_DISP_COEX_STATISTICS);
 }
 
@@ -2247,14 +2327,15 @@ void ex_halbtc8723b1ant_bt_info_notify(struct btc_coexist *btcoexist,
 		} else {
 			/* BT already NOT ignore Wlan active, do nothing here.*/
 		}
-#if (BT_AUTO_REPORT_ONLY_8723B_1ANT == 0)
+		if (!btcoexist->auto_report_1ant) {
 			if (coex_sta->bt_info_ext & BIT4) {
 				/* BT auto report already enabled, do nothing */
 			} else {
-			halbtc8723b1ant_bt_auto_report(btcoexist, FORCE_EXEC,
+				halbtc8723b1ant_bt_auto_report(btcoexist,
+							       FORCE_EXEC,
 							       true);
 			}
-#endif
+		}
 	}
 
 	/* check BIT2 first ==> check if bt is under inquiry or page scan */
@@ -2425,16 +2506,15 @@ void ex_halbtc8723b1ant_periodical(struct btc_coexist *btcoexist)
 			 "[BTCoex], ****************************************************************\n");
 	}
 
-#if (BT_AUTO_REPORT_ONLY_8723B_1ANT == 0)
+	if (!btcoexist->auto_report_1ant) {
 		halbtc8723b1ant_query_bt_info(btcoexist);
 		halbtc8723b1ant_monitor_bt_ctr(btcoexist);
 		halbtc8723b1ant_monitor_bt_enable_disable(btcoexist);
-#else
+	} else {
 		if (btc8723b1ant_is_wifi_status_changed(btcoexist) ||
 		    coex_dm->auto_tdma_adjust) {
 			halbtc8723b1ant_run_coexist_mechanism(btcoexist);
 		}
-
 		coex_sta->special_pkt_period_cnt++;
-#endif
+	}
 }

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h

@@ -25,8 +25,6 @@
 /**********************************************************************
  * The following is for 8723B 1ANT BT Co-exist definition
  **********************************************************************/
-#define	BT_AUTO_REPORT_ONLY_8723B_1ANT			1
-
 #define	BT_INFO_8723B_1ANT_B_FTP			BIT7
 #define	BT_INFO_8723B_1ANT_B_A2DP			BIT6
 #define	BT_INFO_8723B_1ANT_B_HID			BIT5
@@ -138,6 +136,7 @@ struct coex_dm_8723b_1ant {
 };
 
 struct coex_sta_8723b_1ant {
+	bool bt_disabled;
 	bool bt_link_exist;
 	bool sco_exist;
 	bool a2dp_exist;