diff options
| author | Shiji Yang <yangshiji66@outlook.com> | 2023-09-23 04:01:01 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2023-10-03 14:42:18 +0300 |
| commit | 2ecfe6f07e8e6257cad3d3290c5aec2102120041 (patch) | |
| tree | a9da172d2b3729b9c197bbe073cc92c448b84272 | |
| parent | fc158f91360da3549b3772c686fe2d04a49ebb14 (diff) | |
| download | linux-2ecfe6f07e8e6257cad3d3290c5aec2102120041.tar.xz | |
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 <yangshiji66@outlook.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM
| -rw-r--r-- | drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index fe11fa4917ac..6d6ca0d7bdca 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -856,6 +856,7 @@ static int rt2800_agc_to_rssi(struct rt2x00_dev *rt2x00dev, u32 rxwi_w2) 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; @@ -880,9 +881,9 @@ static int rt2800_agc_to_rssi(struct rt2x00_dev *rt2x00dev, u32 rxwi_w2) * 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 |