From: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> commit faa2e484b393c56bc1243dca6676a70bc485f775 upstream. All USB devices supported by rtw88 have the same problem: they don't transmit beacons in AP mode. (Some?) SDIO devices are also affected. The cause appears to be clearing BIT_EN_BCNQ_DL of REG_FWHW_TXQ_CTRL before uploading the beacon reserved page, so don't clear the bit for USB and SDIO devices. Tested with RTL8811CU and RTL8723DU. Cc: <stable@xxxxxxxxxxxxxxx> # 6.6.x Signed-off-by: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> Link: https://patch.msgid.link/49de73b5-698f-4865-ab63-100e28dfc4a1@xxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/wireless/realtek/rtw88/fw.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) --- a/drivers/net/wireless/realtek/rtw88/fw.c +++ b/drivers/net/wireless/realtek/rtw88/fw.c @@ -1468,10 +1468,12 @@ int rtw_fw_write_data_rsvd_page(struct r val |= BIT_ENSWBCN >> 8; rtw_write8(rtwdev, REG_CR + 1, val); - val = rtw_read8(rtwdev, REG_FWHW_TXQ_CTRL + 2); - bckp[1] = val; - val &= ~(BIT_EN_BCNQ_DL >> 16); - rtw_write8(rtwdev, REG_FWHW_TXQ_CTRL + 2, val); + if (rtw_hci_type(rtwdev) == RTW_HCI_TYPE_PCIE) { + val = rtw_read8(rtwdev, REG_FWHW_TXQ_CTRL + 2); + bckp[1] = val; + val &= ~(BIT_EN_BCNQ_DL >> 16); + rtw_write8(rtwdev, REG_FWHW_TXQ_CTRL + 2, val); + } ret = rtw_hci_write_data_rsvd_page(rtwdev, buf, size); if (ret) { @@ -1496,7 +1498,8 @@ restore: rsvd_pg_head = rtwdev->fifo.rsvd_boundary; rtw_write16(rtwdev, REG_FIFOPAGE_CTRL_2, rsvd_pg_head | BIT_BCN_VALID_V1); - rtw_write8(rtwdev, REG_FWHW_TXQ_CTRL + 2, bckp[1]); + if (rtw_hci_type(rtwdev) == RTW_HCI_TYPE_PCIE) + rtw_write8(rtwdev, REG_FWHW_TXQ_CTRL + 2, bckp[1]); rtw_write8(rtwdev, REG_CR + 1, bckp[0]); return ret; Patches currently in stable-queue which might be from rtl8821cerfe2@xxxxxxxxx are queue-6.11/wifi-rtw88-fix-usb-sdio-devices-not-transmitting-beacons.patch
