[PATCH 10/10] rtlwifi: btcoex: 23b 1ant: Revise media status notify to fix no scan result issue

[Larry Finger]

From: Ping-Ke Shih <pks...@realtek.com>

Force antenna setup for no scan result issue

Signed-off-by: Ping-Ke Shih <pks...@realtek.com>
Signed-off-by: Larry Finger <larry.fin...@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchu...@realtek.com>
Cc: Birming Chiu <birm...@realtek.com>
Cc: Shaofu <sha...@realtek.com>
Cc: Steven Ting <stevent...@realtek.com>
---
 .../realtek/rtlwifi/btcoexist/halbtc8723b1ant.c    | 39 ++++++++++++++++++++--
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c 
b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
index 61e8a7e95a91..b8b50c13d911 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
@@ -2804,18 +2804,53 @@ void ex_halbtc8723b1ant_media_status_notify(struct 
btc_coexist *btcoexist,
        u8 h2c_parameter[3] = {0};
        u32 wifi_bw;
        u8 wifi_central_chnl;
+       bool wifi_under_b_mode = false;
 
        if (btcoexist->manual_control || btcoexist->stop_coex_dm ||
            coex_sta->bt_disabled)
                return;
 
-       if (BTC_MEDIA_CONNECT == type)
+       if (type == BTC_MEDIA_CONNECT) {
                RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
                         "[BTCoex], MEDIA connect notify\n");
-       else
+               /* 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);
+               btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_UNDER_B_MODE,
+                                  &wifi_under_b_mode);
+
+               /* Set CCK Tx/Rx high Pri except 11b mode */
+               if (wifi_under_b_mode) {
+                       btcoexist->btc_write_1byte(btcoexist, 0x6cd,
+                                                  0x00); /* CCK Tx */
+                       btcoexist->btc_write_1byte(btcoexist, 0x6cf,
+                                                  0x00); /* CCK Rx */
+               } else {
+                       btcoexist->btc_write_1byte(btcoexist, 0x6cd,
+                                                  0x00); /* CCK Tx */
+                       btcoexist->btc_write_1byte(btcoexist, 0x6cf,
+                                                  0x10); /* CCK Rx */
+               }
+
+               coex_dm->backup_arfr_cnt1 =
+                       btcoexist->btc_read_4byte(btcoexist, 0x430);
+               coex_dm->backup_arfr_cnt2 =
+                       btcoexist->btc_read_4byte(btcoexist, 0x434);
+               coex_dm->backup_retry_limit =
+                       btcoexist->btc_read_2byte(btcoexist, 0x42a);
+               coex_dm->backup_ampdu_max_time =
+                       btcoexist->btc_read_1byte(btcoexist, 0x456);
+       } else {
                RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
                         "[BTCoex], MEDIA disconnect notify\n");
 
+               btcoexist->btc_write_1byte(btcoexist, 0x6cd, 0x0); /* CCK Tx */
+               btcoexist->btc_write_1byte(btcoexist, 0x6cf, 0x0); /* CCK Rx */
+
+               coex_sta->cck_ever_lock = false;
+       }
+
        /* only 2.4G we need to inform bt the chnl mask */
        btcoexist->btc_get(btcoexist, BTC_GET_U1_WIFI_CENTRAL_CHNL,
                           &wifi_central_chnl);
-- 
2.12.0