From c01fd117e581193c0929ad70d6716be703b414e0 Mon Sep 17 00:00:00 2001
From: Ping-Ke Shih <pkshih@realtek.com>
Date: Fri, 19 May 2017 10:59:29 -0500
Subject: [PATCH] rtlwifi: btcoex: 23b 1ant: need these information when scan
Git-commit: c01fd117e581193c0929ad70d6716be703b414e0
Patch-mainline: v4.13-rc1
References: FATE#326906

Log the scan procedure, and update ap_num for future usage when scan done.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@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>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 .../rtlwifi/btcoexist/halbtc8723b1ant.c       | 30 +++++++++++++++++--
 .../rtlwifi/btcoexist/halbtc8723b1ant.h       |  1 +
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
index 3ff0d55e8f22..cd7dd620c264 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
@@ -2424,13 +2424,39 @@ void ex_halbtc8723b1ant_scan_notify(struct btc_coexist *btcoexist, u8 type)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
 	bool wifi_connected = false, bt_hs_on = false;
+	u8 u8tmpa, u8tmpb;
+	u32 u32tmp;
 	u32 wifi_link_status = 0;
 	u32 num_of_wifi_link = 0;
 	bool bt_ctrl_agg_buf_size = false;
 	u8 agg_buf_size = 5;
 
-	if (btcoexist->manual_control || btcoexist->stop_coex_dm ||
-	    btcoexist->bt_info.bt_disabled)
+	if (btcoexist->manual_control || btcoexist->stop_coex_dm)
+		return;
+
+	if (type == BTC_SCAN_START) {
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], SCAN START notify\n");
+		/* Force antenna setup for no scan result issue */
+		halbtc8723b1ant_ps_tdma(btcoexist, FORCE_EXEC, false, 8);
+		halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_PTA,
+					     FORCE_EXEC, false, false);
+		u32tmp = btcoexist->btc_read_4byte(btcoexist, 0x948);
+		u8tmpa = btcoexist->btc_read_1byte(btcoexist, 0x765);
+		u8tmpb = btcoexist->btc_read_1byte(btcoexist, 0x67);
+
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], 0x948=0x%x, 0x765=0x%x, 0x67=0x%x\n",
+			 u32tmp, u8tmpa, u8tmpb);
+	} else {
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], SCAN FINISH notify\n");
+
+		btcoexist->btc_get(btcoexist, BTC_GET_U1_AP_NUM,
+				   &coex_sta->scan_ap_num);
+	}
+
+	if (coex_sta->bt_disabled)
 		return;
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_HS_OPERATION, &bt_hs_on);
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h
index da99addc8474..9909db880c26 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h
@@ -163,6 +163,7 @@ struct coex_sta_8723b_1ant {
 	bool c2h_bt_inquiry_page;
 	u8 bt_retry_cnt;
 	u8 bt_info_ext;
+	u8 scan_ap_num;
 	bool cck_ever_lock;
 	bool force_lps_on;
 	u32 pop_event_cnt;
-- 
2.19.2