Author: adrian
Date: Sat Nov 19 21:12:35 2011
New Revision: 227741
URL: http://svn.freebsd.org/changeset/base/227741
Log:
Add some (totally untested!) code to correctly set the RF half/quarter
mode configuration registers. This is apparently required for correct
behaviour, but also requires the chip to actually officially support it.
Sponsored by: Hobnob, Inc.
Modified:
head/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c
Modified: head/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c
==============================================================================
--- head/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c Sat Nov 19 21:05:31
2011 (r227740)
+++ head/sys/dev/ath/ath_hal/ar5416/ar5416_reset.c Sat Nov 19 21:12:35
2011 (r227741)
@@ -724,6 +724,20 @@ ar5416SetRfMode(struct ath_hal *ah, cons
rfMode |= IEEE80211_IS_CHAN_5GHZ(chan) ?
AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
}
+
+ /*
+ * Set half/quarter mode flags if required.
+ *
+ * This doesn't change the IFS timings at all; that needs to
+ * be done as part of the MAC setup. Similarly, the PLL
+ * configuration also needs some changes for the half/quarter
+ * rate clock.
+ */
+ if (IEEE80211_IS_CHAN_HALF(chan))
+ rfMode |= AR_PHY_MODE_HALF;
+ else if (IEEE80211_IS_CHAN_QUARTER(chan))
+ rfMode |= AR_PHY_MODE_QUARTER;
+
OS_REG_WRITE(ah, AR_PHY_MODE, rfMode);
}
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