From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: Ping-Ke Shih <pkshih@realtek.com>, Sascha Hauer <sha@pengutronix.de>
Subject: [PATCH v2 3/4] wifi: rtw88: 8821c: Fix beacon loss and disconnect
Date: Fri, 1 Mar 2024 00:35:09 +0200 [thread overview]
Message-ID: <276c31d8-b9a8-4e54-a3ac-09b74657aff7@gmail.com> (raw)
In-Reply-To: <f12ed39d-28e8-4b8b-8d22-447bcf295afc@gmail.com>
Tenda U9 V2.0, which contains RTL8811CU, is practically unusable because
of frequent disconnections:
Feb 23 14:46:45 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-BEACON-LOSS
Feb 23 14:46:46 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-DISCONNECTED
bssid=90:55:de:__:__:__ reason=4 locally_generated=1
Feb 23 14:46:52 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-CONNECTED
- Connection to 90:55:de:__:__:__ completed [id=0 id_str=]
Feb 23 14:46:54 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-BEACON-LOSS
Feb 23 14:46:55 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-DISCONNECTED
bssid=90:55:de:__:__:__ reason=4 locally_generated=1
Feb 23 14:47:01 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-CONNECTED
- Connection to 90:55:de:__:__:__ completed [id=0 id_str=]
Feb 23 14:47:04 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-BEACON-LOSS
Feb 23 14:47:05 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-DISCONNECTED
bssid=90:55:de:__:__:__ reason=4 locally_generated=1
This is caused by a mistake in the chip initialisation. This version of
the chip requires loading an extra AGC table right after the main one,
but the extra table is being loaded at the wrong time, in
rtw_chip_board_info_setup().
Move the extra AGC table loading to the right place, in
rtw_phy_load_tables().
The rtw_chip_board_info_setup() can only do "software" things, and
rtw_phy_load_tables() can really do IO.
Fixes: 5d6651fe8583 ("rtw88: 8821c: support RFE type2 wifi NIC")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
v2:
- Add more information in the commit message.
---
drivers/net/wireless/realtek/rtw88/main.c | 2 --
drivers/net/wireless/realtek/rtw88/phy.c | 3 +++
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 6d22628129d0..ffba6b88f392 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -2032,8 +2032,6 @@ static int rtw_chip_board_info_setup(struct rtw_dev *rtwdev)
rtw_phy_setup_phy_cond(rtwdev, hal->pkg_type);
rtw_phy_init_tx_power(rtwdev);
- if (rfe_def->agc_btg_tbl)
- rtw_load_table(rtwdev, rfe_def->agc_btg_tbl);
rtw_load_table(rtwdev, rfe_def->phy_pg_tbl);
rtw_load_table(rtwdev, rfe_def->txpwr_lmt_tbl);
rtw_phy_tx_power_by_rate_config(hal);
diff --git a/drivers/net/wireless/realtek/rtw88/phy.c b/drivers/net/wireless/realtek/rtw88/phy.c
index 128e75a81bf3..37ef80c9091d 100644
--- a/drivers/net/wireless/realtek/rtw88/phy.c
+++ b/drivers/net/wireless/realtek/rtw88/phy.c
@@ -1761,12 +1761,15 @@ static void rtw_load_rfk_table(struct rtw_dev *rtwdev)
void rtw_phy_load_tables(struct rtw_dev *rtwdev)
{
+ const struct rtw_rfe_def *rfe_def = rtw_get_rfe_def(rtwdev);
const struct rtw_chip_info *chip = rtwdev->chip;
u8 rf_path;
rtw_load_table(rtwdev, chip->mac_tbl);
rtw_load_table(rtwdev, chip->bb_tbl);
rtw_load_table(rtwdev, chip->agc_tbl);
+ if (rfe_def->agc_btg_tbl)
+ rtw_load_table(rtwdev, rfe_def->agc_btg_tbl);
rtw_load_rfk_table(rtwdev);
for (rf_path = 0; rf_path < rtwdev->hal.rf_path_num; rf_path++) {
--
2.43.2
next prev parent reply other threads:[~2024-02-29 22:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-29 22:32 [PATCH v2 1/4] wifi: rtw88: 8821cu: Fix firmware upload fail Bitterblue Smith
2024-02-29 22:34 ` [PATCH v2 2/4] wifi: rtw88: 8821cu: Fix connection failure Bitterblue Smith
2024-03-01 0:27 ` Ping-Ke Shih
2024-02-29 22:35 ` Bitterblue Smith [this message]
2024-03-01 0:28 ` [PATCH v2 3/4] wifi: rtw88: 8821c: Fix beacon loss and disconnect Ping-Ke Shih
2024-02-29 22:35 ` [PATCH v2 4/4] wifi: rtw88: 8821c: Fix false alarm count Bitterblue Smith
2024-03-01 0:29 ` Ping-Ke Shih
2024-03-01 0:27 ` [PATCH v2 1/4] wifi: rtw88: 8821cu: Fix firmware upload fail Ping-Ke Shih
2024-03-05 17:44 ` Kalle Valo
2024-03-23 16:18 ` [PATCH] wifi: rtw88: 8821cu: Fix connection failure Bitterblue Smith
2024-03-23 16:23 ` Greg KH
2024-03-23 21:48 ` Bitterblue Smith
2024-03-29 9:34 ` Greg KH
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