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The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: From: Shiji Yang Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [yangshiji66[at]outlook.com] 0.2 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit [yangshiji66[at]outlook.com] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: openwrt-devel@lists.openwrt.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: OpenWrt Development List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "openwrt-devel" Errors-To: openwrt-devel-bounces+incoming=patchwork.ozlabs.org@lists.openwrt.org From: Shiji Yang Introducing SoC specific RSSI base value to fix the low RSSI issue on MT7620. With this fix[1], the RSSI value reported by MT7620 will increase by 10 dB. [1] https://lore.kernel.org/linux-wireless/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM/ Fixes: https://github.com/openwrt/openwrt/issues/11036 Signed-off-by: Shiji Yang --- The relevant code can be found here. It's not a permanent link so I don't want to add it to the commit message. https://github.com/hanwckf/rt-n56u/blob/23387b278a7cf728748af606760758f5d59d1451/trunk/proprietary/rt_wifi/rtsoc/2.7.X.X/rt2860v2/common/cmm_sync.c#L470 ...ifi-rt2x00-fix-MT7620-low-RSSI-issue.patch | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 package/kernel/mac80211/patches/rt2x00/999-wifi-rt2x00-fix-MT7620-low-RSSI-issue.patch diff --git a/package/kernel/mac80211/patches/rt2x00/999-wifi-rt2x00-fix-MT7620-low-RSSI-issue.patch b/package/kernel/mac80211/patches/rt2x00/999-wifi-rt2x00-fix-MT7620-low-RSSI-issue.patch new file mode 100644 index 0000000000..8f7343d14e --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/999-wifi-rt2x00-fix-MT7620-low-RSSI-issue.patch @@ -0,0 +1,39 @@ +From: Shiji Yang +Date: Sat, 23 Sep 2023 07:51:39 +0800 +Subject: [PATCH] wifi: rt2x00: fix MT7620 low RSSI issue + +On Mediatek vendor driver[1], MT7620 (RT6352) uses different RSSI +base value '-2' compared to the other RT2x00 chips. This patch +introduces the SoC specific base value to fix the low RSSI value +reports on MT7620. + +[1] Found on MT76x2E_MT7620_LinuxAP_V3.0.4.0_P3 ConvertToRssi(). + +Signed-off-by: Shiji Yang +--- + drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 7 ++++--- + 1 file changed, 4 insertions(+), 3 deletions(-) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -875,6 +875,7 @@ static int rt2800_agc_to_rssi(struct rt2 + s8 rssi0 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI0); + s8 rssi1 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI1); + s8 rssi2 = rt2x00_get_field32(rxwi_w2, RXWI_W2_RSSI2); ++ s8 base_val = rt2x00_rt(rt2x00dev, RT6352) ? -2 : -12; + u16 eeprom; + u8 offset0; + u8 offset1; +@@ -899,9 +900,9 @@ static int rt2800_agc_to_rssi(struct rt2 + * If the value in the descriptor is 0, it is considered invalid + * and the default (extremely low) rssi value is assumed + */ +- rssi0 = (rssi0) ? (-12 - offset0 - rt2x00dev->lna_gain - rssi0) : -128; +- rssi1 = (rssi1) ? (-12 - offset1 - rt2x00dev->lna_gain - rssi1) : -128; +- rssi2 = (rssi2) ? (-12 - offset2 - rt2x00dev->lna_gain - rssi2) : -128; ++ rssi0 = (rssi0) ? (base_val - offset0 - rt2x00dev->lna_gain - rssi0) : -128; ++ rssi1 = (rssi1) ? (base_val - offset1 - rt2x00dev->lna_gain - rssi1) : -128; ++ rssi2 = (rssi2) ? (base_val - offset2 - rt2x00dev->lna_gain - rssi2) : -128; + + /* + * mac80211 only accepts a single RSSI value. Calculating the