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wifi: rtw88: 8812a: Mitigate beacon loss

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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
This commit is contained in:
Bitterblue Smith
2024-10-23 17:15:13 +03:00
committed by Ping-Ke Shih
parent bfcee5ee92
commit f9e0189cbc
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/realtek/rtw88/phy.c
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@@ -530,6 +530,13 @@ static void rtw_phy_dig(struct rtw_dev *rtwdev)
*/
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);
}