On 01/08/2025 23:51, Bitterblue Smith wrote:
> It seems RTL8852CU can only use TX channels 0, 2, and 8 (for band 0),
> otherwise the chip stops working after downloading at maximum speed
> for a few seconds.
>
> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx>
> ---
> v2:
> - No change, messed up sending v1.
> ---
> drivers/net/wireless/realtek/rtw89/txrx.h | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/drivers/net/wireless/realtek/rtw89/txrx.h b/drivers/net/wireless/realtek/rtw89/txrx.h
> index ec01bfc363da..318fd0ac8726 100644
> --- a/drivers/net/wireless/realtek/rtw89/txrx.h
> +++ b/drivers/net/wireless/realtek/rtw89/txrx.h
> @@ -734,6 +734,25 @@ rtw89_core_get_qsel_mgmt(struct rtw89_dev *rtwdev, struct rtw89_core_tx_request
>
> static inline u8 rtw89_core_get_ch_dma(struct rtw89_dev *rtwdev, u8 qsel)
> {
> + if (rtwdev->hci.type == RTW89_HCI_TYPE_USB &&
> + rtwdev->chip->chip_id == RTL8852C) {
> + switch (qsel) {
> + default:
> + rtw89_warn(rtwdev, "Cannot map qsel to dma: %d\n",
> + qsel);
> + fallthrough;
> + case RTW89_TX_QSEL_BE_0:
> + case RTW89_TX_QSEL_VO_0:
> + return RTW89_TXCH_ACH0;
> + case RTW89_TX_QSEL_BK_0:
> + case RTW89_TX_QSEL_VI_0:
> + return RTW89_TXCH_ACH2;
> + case RTW89_TX_QSEL_B0_MGMT:
> + case RTW89_TX_QSEL_B0_HI:
> + return RTW89_TXCH_CH8;
> + }
> + }
> +
> switch (qsel) {
> default:
> rtw89_warn(rtwdev, "Cannot map qsel to dma: %d\n", qsel);
I see now that RTL8922AU needs the same change. And same in patch 2/11
as well.
