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Commit 6e0e0bf8 authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by John W. Linville
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ath5k: correct ath5k signal quality 



This adjusts ath5k's signal quality reporting taking into
consideration received beacons at an RSSI of 35 should indicate
you can use of 54 Mbps on a single stream card (all ath5k cards)
reliably.

Signed-off-by: default avatarLuis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: default avatarNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent c49d154a

drivers/net/wireless/ath5k/base.c

+11 −1
Original line number Diff line number Diff line
@@ -1778,7 +1778,17 @@ ath5k_tasklet_rx(unsigned long data) 


		rxs.noise = sc->ah->ah_noise_floor;

		rxs.signal = rxs.noise + rs.rs_rssi;

		rxs.qual = rs.rs_rssi * 100 / 64;



		/* An rssi of 35 indicates you should be able use

		 * 54 Mbps reliably. A more elaborate scheme can be used

		 * here but it requires a map of SNR/throughput for each

		 * possible mode used */

		rxs.qual = rs.rs_rssi * 100 / 35;



		/* rssi can be more than 35 though, anything above that

		 * should be considered at 100% */

		if (rxs.qual > 100)

			rxs.qual = 100;



		rxs.antenna = rs.rs_antenna;

		rxs.rate_idx = ath5k_hw_to_driver_rix(sc, rs.rs_rate);