From 930d2bf242d6abdfe8226a3b585007127fbb0f99 Mon Sep 17 00:00:00 2001 From: Yan-Hsuan Chuang Date: Thu, 13 Apr 2017 13:06:52 -0500 Subject: [PATCH] rtlwifi: btcoex: 21a 2ant: limit rx aggregation size to avoid bt interrupt Larger packets have higher opportunity to be interrupt by bt signal. In order to shorten the transmission time, control the packet aggregation size. Signed-off-by: Yan-Hsuan Chuang Signed-off-by: Larry Finger Cc: Pkshih Cc: Birming Chiu Cc: Shaofu Cc: Steven Ting Signed-off-by: Kalle Valo --- .../rtlwifi/btcoexist/halbtc8821a2ant.c | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c index f36dab9291b1..3e671d409e61 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c @@ -244,6 +244,27 @@ static u8 btc8821a2ant_wifi_rssi_state(struct btc_coexist *btcoexist, return wifi_rssi_state; } +static +void btc8821a2ant_limited_rx(struct btc_coexist *btcoexist, bool force_exec, + bool rej_ap_agg_pkt, bool bt_ctrl_agg_buf_size, + u8 agg_buf_size) +{ + bool reject_rx_agg = rej_ap_agg_pkt; + bool bt_ctrl_rx_agg_size = bt_ctrl_agg_buf_size; + u8 rx_agg_size = agg_buf_size; + + /* Rx Aggregation related setting */ + btcoexist->btc_set(btcoexist, BTC_SET_BL_TO_REJ_AP_AGG_PKT, + &reject_rx_agg); + /* decide BT control aggregation buf size or not */ + btcoexist->btc_set(btcoexist, BTC_SET_BL_BT_CTRL_AGG_SIZE, + &bt_ctrl_rx_agg_size); + /* aggregation buf size, works when BT control Rx aggregation size */ + btcoexist->btc_set(btcoexist, BTC_SET_U1_AGG_BUF_SIZE, &rx_agg_size); + /* real update aggregation setting */ + btcoexist->btc_set(btcoexist, BTC_SET_ACT_AGGREGATE_CTRL, NULL); +} + static void btc8821a2ant_monitor_bt_ctr(struct btc_coexist *btcoexist) { struct rtl_priv *rtlpriv = btcoexist->adapter; @@ -1141,6 +1162,8 @@ static bool btc8821a2ant_is_common_action(struct btc_coexist *btcoexist) low_pwr_disable = true; btcoexist->btc_set(btcoexist, BTC_SET_ACT_DISABLE_LOW_POWER, &low_pwr_disable); + btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, + 0x8); RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], Wifi IPS + BT LPS!!\n"); @@ -1447,6 +1470,7 @@ static void btc8821a2ant_action_sco(struct btc_coexist *btcoexist) 15, 0); bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist, 2, 35, 0); + btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8); btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 4); if (BTC_RSSI_HIGH(bt_rssi_state)) @@ -1526,6 +1550,7 @@ static void btc8821a2ant_action_hid(struct btc_coexist *btcoexist) wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0); bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist, 2, 35, 0); + btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8); btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 6); if (BTC_RSSI_HIGH(bt_rssi_state)) @@ -1816,6 +1841,7 @@ static void btc8821a2ant_action_pan_hs(struct btc_coexist *btcoexist) wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0); bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist, 2, 35, 0); + btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8); btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 6); btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_BW, &wifi_bw); @@ -1959,6 +1985,7 @@ static void btc8821a2ant_action_pan_edr_hid(struct btc_coexist *btcoexist) wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0); bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist, 2, 35, 0); + btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8); btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 6); if (BTC_RSSI_HIGH(bt_rssi_state)) @@ -2038,6 +2065,7 @@ static void btc8821a2ant_act_hid_a2dp_pan_edr(struct btc_coexist *btcoexist) wifi_rssi_state = btc8821a2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0); bt_rssi_state = btc8821a2ant_bt_rssi_state(btcoexist, 2, 35, 0); + btc8821a2ant_limited_rx(btcoexist, NORMAL_EXEC, false, false, 0x8); btc8821a2ant_fw_dac_swing_lvl(btcoexist, NORMAL_EXEC, 6); if (BTC_RSSI_HIGH(bt_rssi_state)) -- 2.30.2