rtlwifi: btcoex: 21a 1ant: add function to check wifi status

This function checks if wifi has changed its statusi. It will be needed
in the future.

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>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
index 5b8f4ed5ce6251edcfe4f52bef0c4809c95fbf18..65c455bfd8fbc2063290e87860550e8ab52fb80f 100644 (file)
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c
@@ -424,6 +424,39 @@ static void btc8821a1ant_query_bt_info(struct btc_coexist *btcoexist)
        btcoexist->btc_fill_h2c(btcoexist, 0x61, 1, h2c_parameter);
 }
 
+bool btc8821a1ant_is_wifi_status_changed(struct btc_coexist *btcoexist)
+{
+       static bool pre_wifi_busy = true;
+       static bool pre_under_4way = true;
+       static bool pre_bt_hs_on = true;
+       bool wifi_busy = false, under_4way = false, bt_hs_on = false;
+       bool wifi_connected = false;
+
+       btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_CONNECTED,
+                          &wifi_connected);
+       btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_BUSY, &wifi_busy);
+       btcoexist->btc_get(btcoexist, BTC_GET_BL_HS_OPERATION, &bt_hs_on);
+       btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_4_WAY_PROGRESS,
+                          &under_4way);
+
+       if (wifi_connected) {
+               if (wifi_busy != pre_wifi_busy) {
+                       pre_wifi_busy = wifi_busy;
+                       return true;
+               }
+               if (under_4way != pre_under_4way) {
+                       pre_under_4way = under_4way;
+                       return true;
+               }
+               if (bt_hs_on != pre_bt_hs_on) {
+                       pre_bt_hs_on = bt_hs_on;
+                       return true;
+               }
+       }
+
+       return false;
+}
+
 static void btc8821a1ant_update_bt_link_info(struct btc_coexist *btcoexist)
 {
        struct btc_bt_link_info *bt_link_info = &btcoexist->bt_link_info;