rtw88: coex: 8723d: handle BT inquiry cases

Coex mechanism used to make BT have higher priority and more time to
transfer data when BT inquiry-page, which leads to poor WiFi performance.
Should take WiFi traffic into consideration. If the WiFi is having heavy
traffic, use another parameter to make sure WiFi has more chance to TX/RX,
while guarantee the priority of BT for inquiry. If the WiFi isn't busy
(connected or not), set proper parameter to fix originals.

Fixes: f5df1a8b ("rtw88: 8723d: Add 8723DE to Kconfig and Makefile")
Tested-by: You-Sheng Yang <vicamo.yang@canonical.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200529025009.2468-3-yhchuang@realtek.com

drivers/net/wireless/realtek/rtw88/coex.c

@@ -1354,12 +1354,15 @@ static void rtw_coex_action_bt_inquiry(struct rtw_dev *rtwdev)
 				tdma_case = 108;
 			else
 				tdma_case = 109;
+		} else if (coex_stat->wl_gl_busy) {
+			table_case = 114;
+			tdma_case = 121;
 		} else if (coex_stat->wl_connected) {
-			table_case = 101;
-			tdma_case = 110;
-		} else {
 			table_case = 100;
 			tdma_case = 100;
+		} else {
+			table_case = 101;
+			tdma_case = 100;
 		}
 	}
 

drivers/net/wireless/realtek/rtw88/rtw8723d.c

@@ -2040,7 +2040,7 @@ static const struct coex_tdma_para tdma_sant_8723d[] = {
 
 /* Non-Shared-Antenna TDMA */
 static const struct coex_tdma_para tdma_nsant_8723d[] = {
-	{ {0x00, 0x00, 0x00, 0x40, 0x00} }, /* case-100 */
+	{ {0x00, 0x00, 0x00, 0x40, 0x01} }, /* case-100 */
 	{ {0x61, 0x45, 0x03, 0x11, 0x11} }, /* case-101 */
 	{ {0x61, 0x3a, 0x03, 0x11, 0x11} },
 	{ {0x61, 0x30, 0x03, 0x11, 0x11} },
@@ -2060,7 +2060,8 @@ static const struct coex_tdma_para tdma_nsant_8723d[] = {
 	{ {0x51, 0x3a, 0x03, 0x10, 0x50} },
 	{ {0x51, 0x30, 0x03, 0x10, 0x50} },
 	{ {0x51, 0x20, 0x03, 0x10, 0x50} },
-	{ {0x51, 0x10, 0x03, 0x10, 0x50} }
+	{ {0x51, 0x10, 0x03, 0x10, 0x50} }, /* case-120 */
+	{ {0x51, 0x08, 0x03, 0x10, 0x50} },
 };
 
 /* rssi in percentage % (dbm = % - 100) */