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From: Larry Finger <Larry.Finger@lwfinger.net>
To: kvalo@codeaurora.org
Cc: linux-wireless@vger.kernel.org,
	Yan-Hsuan Chuang <yhchuang@realtek.com>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Pkshih <pkshih@realtek.com>, Birming Chiu <birming@realtek.com>,
	Shaofu <shaofu@realtek.com>, Steven Ting <steventing@realtek.com>
Subject: [PATCH 08/10] rtlwifi: btcoex: 21a 2ant: refine bt info notify to have more profilings
Date: Sun, 16 Apr 2017 14:04:26 -0500	[thread overview]
Message-ID: <20170416190428.23857-9-Larry.Finger@lwfinger.net> (raw)
In-Reply-To: <20170416190428.23857-1-Larry.Finger@lwfinger.net>

From: Yan-Hsuan Chuang <yhchuang@realtek.com>

We add some profiling combinations when the bt notifies the coex
mechanism to detect more situations and adjust the coex to fit to it.

Also monitro if the wifi is under 5G mode, if so, the signals do net
intefere each other, bt can just ignore it

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>
---
 .../realtek/rtlwifi/btcoexist/halbtc8821a2ant.c    | 167 +++++++++++++++------
 .../realtek/rtlwifi/btcoexist/halbtc8821a2ant.h    |   4 +
 2 files changed, 124 insertions(+), 47 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
index 531598366327..1307099a02f3 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
@@ -4019,9 +4019,12 @@ void ex_btc8821a2ant_bt_info_notify(struct btc_coexist *btcoexist,
 	u8 bt_info = 0;
 	u8 i, rsp_source = 0;
 	bool bt_busy = false, limited_dig = false;
-	bool wifi_connected = false, bt_hs_on = false;
+	bool wifi_connected = false, wifi_under_5g = false;
 
 	coex_sta->c2h_bt_info_req_sent = false;
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_5G, &wifi_under_5g);
+	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_CONNECTED,
+			   &wifi_connected);
 
 	rsp_source = tmp_buf[0] & 0xf;
 	if (rsp_source >= BT_INFO_SRC_8821A_2ANT_MAX)
@@ -4044,16 +4047,35 @@ void ex_btc8821a2ant_bt_info_notify(struct btc_coexist *btcoexist,
 		}
 	}
 
+	if (btcoexist->manual_control) {
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BtInfoNotify(), return for Manual CTRL<===\n");
+		return;
+	}
+
 	if (BT_INFO_SRC_8821A_2ANT_WIFI_FW != rsp_source) {
 		/* [3:0] */
 		coex_sta->bt_retry_cnt =
 			coex_sta->bt_info_c2h[rsp_source][2]&0xf;
 
 		coex_sta->bt_rssi =
-			coex_sta->bt_info_c2h[rsp_source][3]*2+10;
+			coex_sta->bt_info_c2h[rsp_source][3] * 2 + 10;
 
-		coex_sta->bt_info_ext =
-			coex_sta->bt_info_c2h[rsp_source][4];
+		coex_sta->bt_info_ext = coex_sta->bt_info_c2h[rsp_source][4];
+
+		coex_sta->bt_tx_rx_mask =
+			(coex_sta->bt_info_c2h[rsp_source][2] & 0x40);
+		btcoexist->btc_set(btcoexist, BTC_SET_BL_BT_TX_RX_MASK,
+				   &coex_sta->bt_tx_rx_mask);
+		if (coex_sta->bt_tx_rx_mask) {
+			/* BT into is responded by BT FW and BT RF REG 0x3C !=
+			 * 0x01 => Need to switch BT TRx Mask
+			 */
+			RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+				 "[BTCoex], Switch BT TRx Mask since BT RF REG 0x3C != 0x01\n");
+			btcoexist->btc_set_bt_reg(btcoexist, BTC_BT_REG_RF,
+						  0x3c, 0x01);
+		}
 
 		/* Here we need to resend some wifi info to BT
 		 * because bt is reset and loss of the info
@@ -4071,70 +4093,121 @@ void ex_btc8821a2ant_bt_info_notify(struct btc_coexist *btcoexist,
 
 		}
 
-		if ((coex_sta->bt_info_ext & BIT3)) {
-			btc8821a2ant_ignore_wlan_act(btcoexist,
-						     FORCE_EXEC, false);
-		} else {
-			/* BT already NOT ignore Wlan active, do nothing here.*/
+		if (!btcoexist->manual_control && !wifi_under_5g) {
+			RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+				 "[BTCoex], BT ext info = 0x%x!!\n",
+				    coex_sta->bt_info_ext);
+			if ((coex_sta->bt_info_ext & BIT(3))) {
+				RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+					 "[BTCoex], BT ext info bit3=1, wifi_connected=%d\n",
+					 wifi_connected);
+				if (wifi_connected) {
+					RT_TRACE(rtlpriv, COMP_BT_COEXIST,
+						 DBG_LOUD,
+						 "[BTCoex], BT ext info bit3 check, set BT NOT to ignore Wlan active!!\n");
+					btc8821a2ant_ignore_wlan_act(btcoexist,
+								     FORCE_EXEC,
+								     false);
+				}
+			} else {
+				RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+					 "[BTCoex], BT ext info bit3=0, wifi_connected=%d\n",
+					 wifi_connected);
+				/* BT already NOT ignore Wlan active, do nothing
+				 * here.
+				 */
+				if (!wifi_connected) {
+					RT_TRACE(rtlpriv, COMP_BT_COEXIST,
+						 DBG_LOUD,
+						"[BTCoex], BT ext info bit3 check, set BT to ignore Wlan active!!\n");
+					btc8821a2ant_ignore_wlan_act(
+						btcoexist, FORCE_EXEC, true);
+				}
+			}
 		}
 	}
 
-	btcoexist->btc_get(btcoexist, BTC_GET_BL_HS_OPERATION, &bt_hs_on);
 	/* check BIT2 first ==> check if bt is under inquiry or page scan*/
 	if (bt_info & BT_INFO_8821A_2ANT_B_INQ_PAGE) {
 		coex_sta->c2h_bt_inquiry_page = true;
-		coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_NON_IDLE;
 	} else {
 		coex_sta->c2h_bt_inquiry_page = false;
-		if (bt_info == 0x1) {
-			/* connection exists but not busy*/
-			coex_sta->bt_link_exist = true;
-			coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_CON_IDLE;
-		} else if (bt_info & BT_INFO_8821A_2ANT_B_CONNECTION) {
-			/* connection exists and some link is busy*/
-			coex_sta->bt_link_exist = true;
-			if (bt_info & BT_INFO_8821A_2ANT_B_FTP)
-				coex_sta->pan_exist = true;
-			else
-				coex_sta->pan_exist = false;
-			if (bt_info & BT_INFO_8821A_2ANT_B_A2DP)
-				coex_sta->a2dp_exist = true;
-			else
-				coex_sta->a2dp_exist = false;
-			if (bt_info & BT_INFO_8821A_2ANT_B_HID)
-				coex_sta->hid_exist = true;
-			else
-				coex_sta->hid_exist = false;
-			if (bt_info & BT_INFO_8821A_2ANT_B_SCO_ESCO)
-				coex_sta->sco_exist = true;
-			else
-				coex_sta->sco_exist = false;
-			coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_NON_IDLE;
-		} else {
-			coex_sta->bt_link_exist = false;
+	}
+	/* set link exist status */
+	if (!(bt_info & BT_INFO_8821A_2ANT_B_CONNECTION)) {
+		coex_sta->bt_link_exist = false;
+		coex_sta->pan_exist = false;
+		coex_sta->a2dp_exist = false;
+		coex_sta->hid_exist = false;
+		coex_sta->sco_exist = false;
+	} else { /* connection exists */
+		coex_sta->bt_link_exist = true;
+		if (bt_info & BT_INFO_8821A_2ANT_B_FTP)
+			coex_sta->pan_exist = true;
+		else
 			coex_sta->pan_exist = false;
+		if (bt_info & BT_INFO_8821A_2ANT_B_A2DP)
+			coex_sta->a2dp_exist = true;
+		else
 			coex_sta->a2dp_exist = false;
+		if (bt_info & BT_INFO_8821A_2ANT_B_HID)
+			coex_sta->hid_exist = true;
+		else
 			coex_sta->hid_exist = false;
+		if (bt_info & BT_INFO_8821A_2ANT_B_SCO_ESCO)
+			coex_sta->sco_exist = true;
+		else
 			coex_sta->sco_exist = false;
-			coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_IDLE;
+
+		if ((!coex_sta->hid_exist) &&
+		    (!coex_sta->c2h_bt_inquiry_page) &&
+		    (!coex_sta->sco_exist)) {
+			if (coex_sta->high_priority_tx +
+				    coex_sta->high_priority_rx >= 160)
+				coex_sta->hid_exist = true;
 		}
+	}
+
+	btc8821a2ant_update_bt_link_info(btcoexist);
 
-		btc8821a2ant_update_bt_link_info(btcoexist);
+	if (!(bt_info & BT_INFO_8821A_2ANT_B_CONNECTION)) {
+		coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_IDLE;
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BtInfoNotify(), BT Non-Connected idle!!!\n");
+	} else if (bt_info == BT_INFO_8821A_2ANT_B_CONNECTION) {
+		/* connection exists but no busy */
+		coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_CON_IDLE;
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BtInfoNotify(), BT Connected-idle!!!\n");
+	} else if ((bt_info & BT_INFO_8821A_2ANT_B_SCO_ESCO) ||
+		   (bt_info & BT_INFO_8821A_2ANT_B_SCO_BUSY)) {
+		coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_SCO_BUSY;
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BtInfoNotify(), BT SCO busy!!!\n");
+	} else if (bt_info & BT_INFO_8821A_2ANT_B_ACL_BUSY) {
+		coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_ACL_BUSY;
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BtInfoNotify(), BT ACL busy!!!\n");
+	} else {
+		coex_dm->bt_status = BT_8821A_2ANT_BT_STATUS_MAX;
+		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+			 "[BTCoex], BtInfoNotify(), BT Non-Defined state!!!\n");
 	}
 
-	if (BT_8821A_2ANT_BT_STATUS_NON_IDLE == coex_dm->bt_status)
+	if ((coex_dm->bt_status == BT_8821A_2ANT_BT_STATUS_ACL_BUSY) ||
+	    (coex_dm->bt_status == BT_8821A_2ANT_BT_STATUS_SCO_BUSY) ||
+	    (coex_dm->bt_status == BT_8821A_2ANT_BT_STATUS_ACL_SCO_BUSY)) {
 		bt_busy = true;
-	else
+		limited_dig = true;
+	} else {
 		bt_busy = false;
+		limited_dig = false;
+	}
+
 	btcoexist->btc_set(btcoexist, BTC_SET_BL_BT_TRAFFIC_BUSY, &bt_busy);
 
-	if (BT_8821A_2ANT_BT_STATUS_IDLE != coex_dm->bt_status)
-		limited_dig = true;
-	else
-		limited_dig = false;
 	coex_dm->limited_dig = limited_dig;
-	btcoexist->btc_set(btcoexist,
-		BTC_SET_BL_BT_LIMITED_DIG, &limited_dig);
+	btcoexist->btc_set(btcoexist, BTC_SET_BL_BT_LIMITED_DIG, &limited_dig);
 
 	btc8821a2ant_run_coexist_mechanism(btcoexist);
 }
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.h b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.h
index 535ca10e910b..d268f424249f 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.h
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.h
@@ -54,6 +54,9 @@ enum _BT_8821A_2ANT_BT_STATUS {
 	BT_8821A_2ANT_BT_STATUS_IDLE		= 0x0,
 	BT_8821A_2ANT_BT_STATUS_CON_IDLE	= 0x1,
 	BT_8821A_2ANT_BT_STATUS_NON_IDLE	= 0x2,
+	BT_8821A_2ANT_BT_STATUS_ACL_BUSY	= 0x3,
+	BT_8821A_2ANT_BT_STATUS_SCO_BUSY	= 0x4,
+	BT_8821A_2ANT_BT_STATUS_ACL_SCO_BUSY	= 0x5,
 	BT_8821A_2ANT_BT_STATUS_MAX
 };
 
@@ -143,6 +146,7 @@ struct coex_sta_8821a_2ant {
 	u32	low_priority_tx;
 	u32	low_priority_rx;
 	u8	bt_rssi;
+	bool	bt_tx_rx_mask;
 	u8	pre_bt_rssi_state;
 	u8	pre_wifi_rssi_state[4];
 	bool	c2h_bt_info_req_sent;
-- 
2.12.0

  parent reply	other threads:[~2017-04-16 19:04 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-16 19:04 [PATCH 00/10] rtlwifi: btcoex: Third set of changes for rtl8821ae 2ant Larry Finger
2017-04-16 19:04 ` [PATCH 01/10] rtlwifi: btcoex: 21a 2ant: set tdma with rssi states Larry Finger
2017-04-21  6:37   ` [01/10] " Kalle Valo
2017-04-16 19:04 ` [PATCH 02/10] rtlwifi: btcoex: 21a 2ant: refine btc8821a2ant_action_hid_a2dp Larry Finger
2017-04-16 19:04 ` [PATCH 03/10] rtlwifi: btcoex: 21a 2ant: set wifi standby when halting of entering ips Larry Finger
2017-04-16 19:04 ` [PATCH 04/10] rtlwifi: btcoex: 21a 2ant: settings before wifi firmware is ready Larry Finger
2017-04-16 19:04 ` [PATCH 05/10] rtlwifi: btcoex: 21a 2ant: add pnp notidy to avoid LPS/IPS mismatch Larry Finger
2017-04-16 19:04 ` [PATCH 06/10] rtlwifi: btcoex: 21a 2ant: run mechanism if status changes or auto adjust is set Larry Finger
2017-04-20 10:54   ` Kalle Valo
2017-04-20 13:30     ` 莊彥宣
2017-04-28 18:52       ` Larry Finger
2017-04-29  3:42         ` 莊彥宣
2017-04-16 19:04 ` [PATCH 07/10] rtlwifi: btcoex: 21a 2ant: init wlan when leave ips Larry Finger
2017-04-16 19:04 ` Larry Finger [this message]
2017-04-16 19:04 ` [PATCH 09/10] rtlwifi: btcoex: 21a 2ant: fix PTA unstable problem when hw init Larry Finger
2017-04-16 19:04 ` [PATCH 10/10] rtlwifi: btcoex: 21a 2ant: remove unused antenna detection variables Larry Finger

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