rtlwifi: Add rx ampdu cfg for btcoexist.

If RX ampdu is too long, BT will have less time.
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>

drivers/net/wireless/realtek/rtlwifi/base.c

@@ -1582,6 +1582,7 @@ int rtl_rx_agg_start(struct ieee80211_hw *hw,
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_tid_data *tid_data;
 	struct rtl_sta_info *sta_entry = NULL;
+	u8 reject_agg;
 
 	if (sta == NULL)
 		return -EINVAL;
@@ -1589,6 +1590,14 @@ int rtl_rx_agg_start(struct ieee80211_hw *hw,
 	if (unlikely(tid >= MAX_TID_COUNT))
 		return -EINVAL;
 
+	if (rtlpriv->cfg->ops->get_btc_status()) {
+		rtlpriv->btcoexist.btc_ops->btc_get_ampdu_cfg(rtlpriv,
+							      &reject_agg,
+							      NULL, NULL);
+		if (reject_agg)
+			return -EINVAL;
+	}
+
 	sta_entry = (struct rtl_sta_info *)sta->drv_priv;
 	if (!sta_entry)
 		return -ENXIO;
@@ -1643,6 +1652,24 @@ int rtl_tx_agg_oper(struct ieee80211_hw *hw,
 	return 0;
 }
 
+void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv)
+{
+	struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops;
+	u8 reject_agg, ctrl_agg_size = 0, agg_size;
+
+	if (rtlpriv->cfg->ops->get_btc_status())
+		btc_ops->btc_get_ampdu_cfg(rtlpriv, &reject_agg,
+					   &ctrl_agg_size, &agg_size);
+
+	RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_DMESG,
+		 "Set RX AMPDU: coex - reject=%d, ctrl_agg_size=%d, size=%d",
+		 reject_agg, ctrl_agg_size, agg_size);
+
+	rtlpriv->hw->max_rx_aggregation_subframes =
+		(ctrl_agg_size ? agg_size : IEEE80211_MAX_AMPDU_BUF);
+}
+EXPORT_SYMBOL(rtl_rx_ampdu_apply);
+
 /*********************************************************
  *
  * wq & timer callback functions

drivers/net/wireless/realtek/rtlwifi/base.h

@@ -147,6 +147,7 @@ int rtl_rx_agg_start(struct ieee80211_hw *hw,
 		     struct ieee80211_sta *sta, u16 tid);
 int rtl_rx_agg_stop(struct ieee80211_hw *hw,
 		    struct ieee80211_sta *sta, u16 tid);
+void rtl_rx_ampdu_apply(struct rtl_priv *rtlpriv);
 void rtl_watchdog_wq_callback(void *data);
 void rtl_fwevt_wq_callback(void *data);
 void rtl_c2hcmd_wq_callback(void *data);

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

@@ -272,14 +272,24 @@ static void halbtc_disable_low_power(struct btc_coexist *btcoexist,
 static void halbtc_aggregation_check(struct btc_coexist *btcoexist)
 {
 	bool need_to_act = false;
+	static unsigned long pre_time;
+	unsigned long cur_time = 0;
+	struct rtl_priv *rtlpriv = btcoexist->adapter;
 
 	/* To void continuous deleteBA=>addBA=>deleteBA=>addBA
 	 * This function is not allowed to continuous called
 	 * It can only be called after 8 seconds
 	 */
 
+	cur_time = jiffies;
+	if (jiffies_to_msecs(cur_time - pre_time) <= 8000) {
+		/* over 8 seconds you can execute this function again. */
+		return;
+	}
+	pre_time = cur_time;
+
 	if (btcoexist->bt_info.reject_agg_pkt) {
-		;/* TODO: reject */
+		need_to_act = true;
 		btcoexist->bt_info.pre_reject_agg_pkt =
 			btcoexist->bt_info.reject_agg_pkt;
 	} else {
@@ -304,8 +314,10 @@ static void halbtc_aggregation_check(struct btc_coexist *btcoexist)
 			btcoexist->bt_info.pre_agg_buf_size =
 				btcoexist->bt_info.agg_buf_size;
 		}
-	}
 
+		if (need_to_act)
+			rtl_rx_ampdu_apply(rtlpriv);
+	}
 }
 
 static u32 halbtc_get_bt_patch_version(struct btc_coexist *btcoexist)

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

@@ -46,6 +46,7 @@ static struct rtl_btc_ops rtl_btc_operation = {
 	.btc_is_bt_disabled = rtl_btc_is_bt_disabled,
 	.btc_special_packet_notify = rtl_btc_special_packet_notify,
 	.btc_record_pwr_mode = rtl_btc_record_pwr_mode,
+	.btc_get_ampdu_cfg = rtl_btc_get_ampdu_cfg,
 };
 
 void rtl_btc_record_pwr_mode(struct rtl_priv *rtlpriv, u8 *buf, u8 len)
@@ -60,6 +61,17 @@ void rtl_btc_record_pwr_mode(struct rtl_priv *rtlpriv, u8 *buf, u8 len)
 	memcpy(gl_bt_coexist.pwr_mode_val, buf, safe_len);
 }
 
+void rtl_btc_get_ampdu_cfg(struct rtl_priv *rtlpriv, u8 *reject_agg,
+			   u8 *ctrl_agg_size, u8 *agg_size)
+{
+	if (reject_agg)
+		*reject_agg = gl_bt_coexist.bt_info.reject_agg_pkt;
+	if (ctrl_agg_size)
+		*ctrl_agg_size = gl_bt_coexist.bt_info.bt_ctrl_agg_buf_size;
+	if (agg_size)
+		*agg_size = gl_bt_coexist.bt_info.agg_buf_size;
+}
+
 void rtl_btc_init_variables(struct rtl_priv *rtlpriv)
 {
 	exhalbtc_initlize_variables();

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

@@ -44,6 +44,8 @@ bool rtl_btc_is_disable_edca_turbo(struct rtl_priv *rtlpriv);
 bool rtl_btc_is_bt_disabled(struct rtl_priv *rtlpriv);
 void rtl_btc_special_packet_notify(struct rtl_priv *rtlpriv, u8 pkt_type);
 void rtl_btc_record_pwr_mode(struct rtl_priv *rtlpriv, u8 *buf, u8 len);
+void rtl_btc_get_ampdu_cfg(struct rtl_priv *rtlpriv, u8 *reject_agg,
+			   u8 *ctrl_agg_size, u8 *agg_size);
 
 struct rtl_btc_ops *rtl_btc_get_ops_pointer(void);
 

drivers/net/wireless/realtek/rtlwifi/wifi.h

@@ -2561,6 +2561,8 @@ struct rtl_btc_ops {
 	void (*btc_special_packet_notify)(struct rtl_priv *rtlpriv,
 					  u8 pkt_type);
 	void (*btc_record_pwr_mode)(struct rtl_priv *rtlpriv, u8 *buf, u8 len);
+	void (*btc_get_ampdu_cfg)(struct rtl_priv *rtlpriv, u8 *reject_agg,
+				  u8 *ctrl_agg_size, u8 *agg_size);
 };
 
 struct proxim {