From f8028a9a92f2b8653658f2ad9cc1fb849873ba5a Mon Sep 17 00:00:00 2001
From: Ching-Te Ku <ku920601@realtek.com>
Date: Thu, 9 Dec 2021 16:32:24 +0800
Subject: [PATCH] rtw89: coex: Not to send H2C when WL not ready and count H2C
Git-commit: f8028a9a92f2b8653658f2ad9cc1fb849873ba5a
Patch-mainline: v5.17-rc1
References: bsc#1188303

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
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/realtek/rtw89/coex.c | 27 +++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c
index f220229a7a48..c8f912e7344d 100644
--- a/drivers/net/wireless/realtek/rtw89/coex.c
+++ b/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)
-- 
2.31.1