Author: adrian
Date: Sat Dec 1 03:48:11 2012
New Revision: 243743
URL: http://svnweb.freebsd.org/changeset/base/243743
Log:
Add a new HAL capability - check and enforce whether the NIC supports
enforcing the TXOP and TBTT limits:
* Frames which will overlap with TBTT will not TX;
* Frames which will exceed TXOP will be filtered.
This is not enabled by default; it's intended to be enabled by the
TDMA code on 802.11n capable chipsets.
Modified:
head/sys/dev/ath/ath_hal/ah.h
head/sys/dev/ath/ath_hal/ar5416/ar5416_misc.c
Modified: head/sys/dev/ath/ath_hal/ah.h
==============================================================================
--- head/sys/dev/ath/ath_hal/ah.h Sat Dec 1 02:02:19 2012
(r243742)
+++ head/sys/dev/ath/ath_hal/ah.h Sat Dec 1 03:48:11 2012
(r243743)
@@ -192,6 +192,7 @@ typedef enum {
HAL_CAP_LONG_RXDESC_TSF = 243, /* hardware supports 32bit TSF in RX
descriptor */
HAL_CAP_BB_READ_WAR = 244, /* baseband read WAR */
HAL_CAP_SERIALISE_WAR = 245, /* serialise register access on PCI */
+ HAL_CAP_ENFORCE_TXOP = 246, /* Enforce TXOP if supported */
} HAL_CAPABILITY_TYPE;
/*
Modified: head/sys/dev/ath/ath_hal/ar5416/ar5416_misc.c
==============================================================================
--- head/sys/dev/ath/ath_hal/ar5416/ar5416_misc.c Sat Dec 1 02:02:19
2012 (r243742)
+++ head/sys/dev/ath/ath_hal/ar5416/ar5416_misc.c Sat Dec 1 03:48:11
2012 (r243743)
@@ -451,6 +451,10 @@ ar5416GetCapability(struct ath_hal *ah,
HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_DIVERSITY: /* disable classic fast diversity */
return HAL_ENXIO;
+ case HAL_CAP_ENFORCE_TXOP:
+ (*result) =
+ !! (AH5212(ah)->ah_miscMode & AR_PCU_TXOP_TBTT_LIMIT_ENA);
+ return (HAL_OK);
default:
break;
}
@@ -480,6 +484,19 @@ ar5416SetCapability(struct ath_hal *ah,
else
pCap->halTxStreams = 1;
return AH_TRUE;
+ case HAL_CAP_ENFORCE_TXOP:
+ if (setting) {
+ AH5212(ah)->ah_miscMode
+ |= AR_PCU_TXOP_TBTT_LIMIT_ENA;
+ OS_REG_SET_BIT(ah, AR_MISC_MODE,
+ AR_PCU_TXOP_TBTT_LIMIT_ENA);
+ } else {
+ AH5212(ah)->ah_miscMode
+ &= ~AR_PCU_TXOP_TBTT_LIMIT_ENA;
+ OS_REG_CLR_BIT(ah, AR_MISC_MODE,
+ AR_PCU_TXOP_TBTT_LIMIT_ENA);
+ }
+ return AH_TRUE;
default:
break;
}
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
