rt2x00: Don't switch to antenna with low rssi
When rssi_a > rssi_b is true and the current antenna was already antenna A, then rt2x00 incorrectly jumped to antenna B. Also don't configure the antenna when there has been no change in the antenna setup. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -97,6 +97,10 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
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libconf.ant.rx = rx;
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libconf.ant.tx = tx;
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if (rx == rt2x00dev->link.ant.active.rx &&
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tx == rt2x00dev->link.ant.active.tx)
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return;
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/*
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* Antenna setup changes require the RX to be disabled,
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* else the changes will be ignored by the device.
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@ -260,19 +260,11 @@ static void rt2x00lib_evaluate_antenna_sample(struct rt2x00_dev *rt2x00dev)
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if (sample_a == sample_b)
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return;
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if (rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) {
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if (sample_a > sample_b && rx == ANTENNA_B)
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rx = ANTENNA_A;
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else if (rx == ANTENNA_A)
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rx = ANTENNA_B;
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}
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if (rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY)
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rx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
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if (rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY) {
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if (sample_a > sample_b && tx == ANTENNA_B)
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tx = ANTENNA_A;
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else if (tx == ANTENNA_A)
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tx = ANTENNA_B;
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}
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if (rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)
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tx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
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rt2x00lib_config_antenna(rt2x00dev, rx, tx);
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}
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@ -327,7 +319,7 @@ static void rt2x00lib_evaluate_antenna(struct rt2x00_dev *rt2x00dev)
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if (!(rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) &&
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!(rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)) {
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rt2x00dev->link.ant.flags &= ~ANTENNA_MODE_SAMPLE;
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rt2x00dev->link.ant.flags = 0;
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return;
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}
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