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wifi: rtl8xxxu: Make RTL8192CU, RTL8723AU TX with 40 MHz width

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Set the required fields in the TX descriptor to allow these chips to
transmit with 40 MHz channel width when the access point supports it.

Tested only with RTL8192CU, but these settings are identical for
RTL8723AU.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/30d95228-69b2-48f9-8854-c98d2408c4d3@gmail.com
This commit is contained in:
Bitterblue Smith 2025-11-20 16:11:58 +02:00 committed by Ping-Ke Shih
parent 5511ba3de4
commit bdb4c850c3
1 changed files with 11 additions and 1 deletions
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12
drivers/net/wireless/realtek/rtl8xxxu/core.c
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@ -5221,9 +5221,19 @@ rtl8xxxu_fill_txdesc_v1(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr,
tx_desc->txdw5 |= cpu_to_le32(TXDESC32_RETRY_LIMIT_ENABLE);
}
if (ieee80211_is_data_qos(hdr->frame_control))
if (ieee80211_is_data_qos(hdr->frame_control)) {
tx_desc->txdw4 |= cpu_to_le32(TXDESC32_QOS);
if (conf_is_ht40(&hw->conf)) {
tx_desc->txdw4 |= cpu_to_le32(TXDESC_DATA_BW);
if (conf_is_ht40_minus(&hw->conf))
tx_desc->txdw4 |= cpu_to_le32(TXDESC_PRIME_CH_OFF_UPPER);
else
tx_desc->txdw4 |= cpu_to_le32(TXDESC_PRIME_CH_OFF_LOWER);
}
}
if (short_preamble)
tx_desc->txdw4 |= cpu_to_le32(TXDESC32_SHORT_PREAMBLE);