From: Yan-Hsuan Chuang <yhchuang@realtek.com>
Date: Sat, 15 Apr 2017 20:31:54 +0000 (-0500)
Subject: rtlwifi: btcoex: 21a 2ant: monitor extra wifi rssi to examine network status
X-Git-Tag: v4.12-rc1~129^2~119^2~12
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=a4162ea71b39667e0393480080819be095fc7a33;p=linux.git

rtlwifi: btcoex: 21a 2ant: monitor extra wifi rssi to examine network status

Here we monitor one more wifi rssi to check the status of the network
and set the coex table instead of the legacy way.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
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>
---

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
index 4471bd66a2e5..b93a4f7ce17a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
@@ -2939,11 +2939,18 @@ static void btc8821a2ant_action_a2dp_pan_hs(struct btc_coexist *btcoexist)
 
 static void btc8821a2ant_action_pan_edr(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, bt_rssi_state;
+	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 
 	wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
-	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist, 2, 35, 0);
+	wifi_rssi_state1 = btc8821a2ant_wifi_rssi_state(btcoexist, 1, 2,
+				BT_8821A_2ANT_WIFI_RSSI_COEXSWITCH_THRES, 0);
+	bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist,
+				2, BT_8821A_2ANT_BT_RSSI_COEXSWITCH_THRES, 0);
+
+	btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A, 0x1, 0xfffff, 0x0);
+
+	btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8);
 
 	btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 6);
 
@@ -2952,30 +2959,25 @@ static void btc8821a2ant_action_pan_edr(struct btc_coexist *btcoexist)
 	else
 		btc8821a2ant_dec_bt_pwr(btcoexist, NORMAL_EXEC, false);
 
-	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_BW, &wifi_bw);
-
-	if (BTC_WIFI_BW_LEGACY == wifi_bw) {
-		/* for HID at 11b/g mode */
-		btc8821a2ant_coex_table(btcoexist, NORMAL_EXEC, 0x55ff55ff,
-					0x5aff5aff, 0xffff, 0x3);
+	if (BTC_RSSI_HIGH(wifi_rssi_state1) && BTC_RSSI_HIGH(bt_rssi_state)) {
+		btc8821a2ant_coex_table_with_type(btcoexist, NORMAL_EXEC, 10);
+		btc8821a2ant_power_save_state(btcoexist, BTC_PS_WIFI_NATIVE,
+					      0x0, 0x0);
 	} else {
 		btc8821a2ant_coex_table_with_type(btcoexist, NORMAL_EXEC, 13);
 		btc8821a2ant_power_save_state(btcoexist, BTC_PS_LPS_ON, 0x50,
 					      0x4);
 	}
 
-	if (BTC_WIFI_BW_HT40 == wifi_bw) {
-		/* fw mechanism */
-		if ((bt_rssi_state == BTC_RSSI_STATE_HIGH) ||
-		    (bt_rssi_state == BTC_RSSI_STATE_STAY_HIGH)) {
-			btc8821a2ant_ps_tdma(btcoexist, NORMAL_EXEC,
-					     true, 1);
-		} else {
-			btc8821a2ant_ps_tdma(btcoexist, NORMAL_EXEC,
-					     true, 5);
-		}
+	if ((bt_rssi_state == BTC_RSSI_STATE_HIGH) ||
+	    (bt_rssi_state == BTC_RSSI_STATE_STAY_HIGH))
+		btc8821a2ant_ps_tdma(btcoexist, NORMAL_EXEC, true, 26);
+	else
+		btc8821a2ant_ps_tdma(btcoexist, NORMAL_EXEC, true, 26);
 
-		/* sw mechanism */
+	/* sw mechanism */
+	btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_BW, &wifi_bw);
+	if (wifi_bw == BTC_WIFI_BW_HT40) {
 		if ((wifi_rssi_state == BTC_RSSI_STATE_HIGH) ||
 		    (wifi_rssi_state == BTC_RSSI_STATE_STAY_HIGH)) {
 			btc8821a2ant_sw_mechanism1(btcoexist, true, false,
@@ -2989,17 +2991,6 @@ static void btc8821a2ant_action_pan_edr(struct btc_coexist *btcoexist)
 						   false, 0x18);
 		}
 	} else {
-		/* fw mechanism */
-		if ((bt_rssi_state == BTC_RSSI_STATE_HIGH) ||
-		    (bt_rssi_state == BTC_RSSI_STATE_STAY_HIGH)) {
-			btc8821a2ant_ps_tdma(btcoexist, NORMAL_EXEC,
-					     true, 1);
-		} else {
-			btc8821a2ant_ps_tdma(btcoexist, NORMAL_EXEC,
-					     true, 5);
-		}
-
-		/* sw mechanism */
 		if ((wifi_rssi_state == BTC_RSSI_STATE_HIGH) ||
 		    (wifi_rssi_state == BTC_RSSI_STATE_STAY_HIGH)) {
 			btc8821a2ant_sw_mechanism1(btcoexist, false, false,