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@xxxxxxxxxxx> --- drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index e65cc00fa..a652379cd 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 -- 2.39.2
