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