rtw89: coex: Not to send H2C when WL not ready and count H2C

Prevent to send H2C request to FW when BTC is not initialized or
WL is under power saving. Add counter to count the H2C success or fail.
Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211209083229.10815-3-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/coex.c

@@ -540,8 +540,31 @@ static void _update_bt_scbd(struct rtw89_dev *rtwdev, bool only_update);
 static void _send_fw_cmd(struct rtw89_dev *rtwdev, u8 h2c_class, u8 h2c_func,
 			 void *param, u16 len)
 {
-	rtw89_fw_h2c_raw_with_hdr(rtwdev, h2c_class, h2c_func, param, len,
-				  false, true);
+	struct rtw89_btc *btc = &rtwdev->btc;
+	struct rtw89_btc_btf_fwinfo *pfwinfo = &btc->fwinfo;
+	struct rtw89_btc_cx *cx = &btc->cx;
+	struct rtw89_btc_wl_info *wl = &cx->wl;
+	int ret;
+
+	if (!wl->status.map.init_ok) {
+		rtw89_debug(rtwdev, RTW89_DBG_BTC,
+			    "[BTC], %s(): return by btc not init!!\n", __func__);
+		pfwinfo->cnt_h2c_fail++;
+		return;
+	} else if ((wl->status.map.rf_off_pre == 1 && wl->status.map.rf_off == 1) ||
+		   (wl->status.map.lps_pre == 1 && wl->status.map.lps == 1)) {
+		rtw89_debug(rtwdev, RTW89_DBG_BTC,
+			    "[BTC], %s(): return by wl off!!\n", __func__);
+		pfwinfo->cnt_h2c_fail++;
+		return;
+	}
+
+	pfwinfo->cnt_h2c++;
+
+	ret = rtw89_fw_h2c_raw_with_hdr(rtwdev, h2c_class, h2c_func, param, len,
+					false, true);
+	if (ret != 0)
+		pfwinfo->cnt_h2c_fail++;
 }
 
 static void _reset_btc_var(struct rtw89_dev *rtwdev, u8 type)