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Sun, 15 Nov 2026 03:56:05 -0800 (PST) Received: from acemagic-m1.tail4fb79.ts.net ([2401:7400:c804:b668:5ade:5fb:5602:326b]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b1b3ac294bsm5853901a91.2.2026.11.15.03.56.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Nov 2026 03:56:04 -0800 (PST) From: Ho Jie Feng To: Ping-Ke Shih Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Bitterblue Smith , Luka Gejak , Ho Jie Feng Subject: [PATCH rtw-next v4 1/7] wifi: rtw88: 8812a, 8814a: enable STBC for HT transmissions Date: Sun, 15 Nov 2026 19:43:27 +0800 Message-ID: <20261115114336.1739863-2-hjf3108@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261115114336.1739863-1-hjf3108@gmail.com> References: <20261115114336.1739863-1-hjf3108@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 8812a and 8814a support STBC, enable it. 8822c will lose reporting TX STBC capability if efuse reports only 1 path, but this is correct, since in that case it doesn't actually support STBC. Tested on RTL8812AU, STBC packets were captured in monitor mode. Signed-off-by: Ho Jie Feng --- drivers/net/wireless/realtek/rtw88/main.c | 2 +- drivers/net/wireless/realtek/rtw88/rtw8812a.c | 1 + drivers/net/wireless/realtek/rtw88/rtw8814a.c | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c index f7708ad17b..e243738809 100644 --- a/drivers/net/wireless/realtek/rtw88/main.c +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -1583,7 +1583,7 @@ static void rtw_init_ht_cap(struct rtw_dev *rtwdev, if (rtw_chip_has_rx_ldpc(rtwdev)) ht_cap->cap |= IEEE80211_HT_CAP_LDPC_CODING; - if (rtw_chip_has_tx_stbc(rtwdev)) + if (rtw_chip_has_tx_stbc(rtwdev) && rtwdev->hal.rf_path_num > 1) ht_cap->cap |= IEEE80211_HT_CAP_TX_STBC; if (efuse->hw_cap.bw & BIT(RTW_CHANNEL_WIDTH_40)) diff --git a/drivers/net/wireless/realtek/rtw88/rtw8812a.c b/drivers/net/wireless/realtek/rtw88/rtw8812a.c index 781b66ccde..55f1d3d324 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8812a.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8812a.c @@ -1077,6 +1077,7 @@ const struct rtw_chip_info rtw8812a_hw_spec = { .rfe_defs = rtw8812a_rfe_defs, .rfe_defs_size = ARRAY_SIZE(rtw8812a_rfe_defs), .rx_ldpc = false, + .tx_stbc = true, .amsdu_in_ampdu = true, .hw_feature_report = false, .c2h_ra_report_size = 4, diff --git a/drivers/net/wireless/realtek/rtw88/rtw8814a.c b/drivers/net/wireless/realtek/rtw88/rtw8814a.c index b6916d3dc6..e35c57c9d1 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8814a.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8814a.c @@ -2200,6 +2200,7 @@ const struct rtw_chip_info rtw8814a_hw_spec = { .txgi_factor = 1, .is_pwr_by_rate_dec = true, .rx_ldpc = true, + .tx_stbc = true, .max_power_index = 0x3f, .ampdu_density = IEEE80211_HT_MPDU_DENSITY_2, .amsdu_in_ampdu = false, /* RX speed is better without AMSDU */ -- 2.53.0