[PATCH 03/10] rtlwifi: btcoex: 21a 1ant: add bt_tx_rx_mask into bt info

[Larry Finger]

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

Set rf register if the tx rx mask is switched.

Signed-off-by: Yan-Hsuan Chuang <yhchu...@realtek.com>
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
Cc: Pkshih <pks...@realtek.com>
Cc: Birming Chiu <birm...@realtek.com>
Cc: Shaofu <sha...@realtek.com>
Cc: Steven Ting <stevent...@realtek.com>
---
 .../wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c   | 14 ++++++++++++++
 .../wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h   |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c 
b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
index 93644bedaa0f..4efac5fe9982 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
@@ -2848,6 +2848,20 @@ void ex_btc8821a1ant_bt_info_notify(struct btc_coexist 
*btcoexist,
 
                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 !=
+                        * 0x15 => Need to switch BT TRx Mask
+                        */
+                       RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
+                                "[BTCoex], Switch BT TRx Mask since BT RF REG 
0x3C != 0x15\n");
+                       btcoexist->btc_set_bt_reg(btcoexist, BTC_BT_REG_RF,
+                                                 0x3c, 0x15);
+               }
+
                /* Here we need to resend some wifi info to BT
                 * because bt is reset and lost the info
                 */
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h 
b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h
index 1eba3b0d32ae..cb32e7a64ae6 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.h
@@ -154,6 +154,7 @@ struct coex_sta_8821a_1ant {
        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