Initial commit

package/kernel/mac80211/patches/rtl/038-v6.13-wifi-rtw88-8812a-Mitigate-beacon-loss.patch

@@ -0,0 +1,37 @@
+From f9e0189cbc2d6447dde392944c769546cdf48140 Mon Sep 17 00:00:00 2001
+From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
+Date: Wed, 23 Oct 2024 17:15:13 +0300
+Subject: [PATCH] wifi: rtw88: 8812a: Mitigate beacon loss
+
+The RTL8812AU has a reception problem, maybe only in the 5 GHz band.
+Sometimes, in some positions, it stops receiving anything even though
+the distance to the AP is only ~3 meters and there are no obstacles.
+Moving it a few centimeters fixes it.
+
+Switch the initial gain to maximum coverage when there is beacon loss.
+This only helps sometimes. This is similar to what the official driver
+does.
+
+Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
+Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
+Link: https://patch.msgid.link/203f5043-4fe1-4f35-8b8f-d3b6f44e1fd9@gmail.com
+---
+ drivers/net/wireless/realtek/rtw88/phy.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/net/wireless/realtek/rtw88/phy.c
++++ b/drivers/net/wireless/realtek/rtw88/phy.c
+@@ -530,6 +530,13 @@ static void rtw_phy_dig(struct rtw_dev *
+ 	 */
+ 	rtw_phy_dig_recorder(dm_info, cur_igi, fa_cnt);
+ 
++	/* Mitigate beacon loss and connectivity issues, mainly (only?)
++	 * in the 5 GHz band
++	 */
++	if (rtwdev->chip->id == RTW_CHIP_TYPE_8812A && rtwdev->beacon_loss &&
++	    linked && dm_info->total_fa_cnt < DIG_PERF_FA_TH_EXTRA_HIGH)
++		cur_igi = DIG_CVRG_MIN;
++
+ 	if (cur_igi != pre_igi)
+ 		rtw_phy_dig_write(rtwdev, cur_igi);
+ }