Add HAL_RX_FILTER_BSSID support (to disable bssid match):

o add HAL_CAP_BSSIDMATCH to identify parts that have the support for
  disabling bssid match
o honor capability for set/get rx filter
o use HAL_CAP_BSSIDMATCH in driver to decide whether to use the bssid
  match disable or fall back to promisc mode

Reviewed by:	rpaulo
Approved by:	re (rwatson)

7 files changed, 31 insertions, 7 deletions

diff --git a/sys/dev/ath/ath_hal/ah.c b/sys/dev/ath/ath_hal/ah.c
index 616e19b..cff9613 100644
--- a/sys/dev/ath/ath_hal/ah.c
+++ b/sys/dev/ath/ath_hal/ah.c
@@ -503,6 +503,8 @@ ath_hal_getcapability(struct ath_hal *ah, HAL_CAPABILITY_TYPE type,
 	case HAL_CAP_INTRMASK:		/* mask of supported interrupts */
 		*result = pCap->halIntrMask;
 		return HAL_OK;
+	case HAL_CAP_BSSIDMATCH:	/* hardware has disable bssid match */
+		return pCap->halBssidMatchSupport ? HAL_OK : HAL_ENOTSUPP;
 	default:
 		return HAL_EINVAL;
 	}
diff --git a/sys/dev/ath/ath_hal/ah.h b/sys/dev/ath/ath_hal/ah.h
index ba55a2d..f7434f8 100644
--- a/sys/dev/ath/ath_hal/ah.h
+++ b/sys/dev/ath/ath_hal/ah.h
@@ -110,6 +110,7 @@ typedef enum {
 	HAL_CAP_BB_HANG		= 35,	/* can baseband hang */
 	HAL_CAP_MAC_HANG	= 36,	/* can MAC hang */
 	HAL_CAP_INTRMASK	= 37,	/* bitmask of supported interrupts */
+	HAL_CAP_BSSIDMATCH	= 38,	/* hardware has disable bssid match */
 } HAL_CAPABILITY_TYPE;
 
 /* 
@@ -296,6 +297,7 @@ typedef enum {
 	HAL_RX_FILTER_PHYERR	= 0x00000100,	/* Allow phy errors */
 	HAL_RX_FILTER_PHYRADAR	= 0x00000200,	/* Allow phy radar errors */
 	HAL_RX_FILTER_COMPBAR	= 0x00000400,	/* Allow compressed BAR */
+	HAL_RX_FILTER_BSSID	= 0x00000800,	/* Disable BSSID match */
 } HAL_RX_FILTER;
 
 typedef enum {
diff --git a/sys/dev/ath/ath_hal/ah_internal.h b/sys/dev/ath/ath_hal/ah_internal.h
index 087a8e3..8f7ba65 100644
--- a/sys/dev/ath/ath_hal/ah_internal.h
+++ b/sys/dev/ath/ath_hal/ah_internal.h
@@ -193,7 +193,8 @@ typedef struct {
 			halExtChanDfsSupport		: 1,
 			halForcePpmSupport		: 1,
 			halEnhancedPmSupport		: 1,
-			halMbssidAggrSupport		: 1;
+			halMbssidAggrSupport		: 1,
+			halBssidMatchSupport		: 1;
 	uint32_t	halWirelessModes;
 	uint16_t	halTotalQueues;
 	uint16_t	halKeyCacheSize;
diff --git a/sys/dev/ath/ath_hal/ar5212/ar5212_attach.c b/sys/dev/ath/ath_hal/ar5212/ar5212_attach.c
index 60e1521..ace6989 100644
--- a/sys/dev/ath/ath_hal/ar5212/ar5212_attach.c
+++ b/sys/dev/ath/ath_hal/ar5212/ar5212_attach.c
@@ -833,11 +833,15 @@ ar5212FillCapabilityInfo(struct ath_hal *ah)
 	ahpriv->ah_rxornIsFatal =
 	    (AH_PRIVATE(ah)->ah_macVersion < AR_SREV_VERSION_VENICE);
 
-	/* h/w phy counters first appeared in Hainan */
-	pCap->halHwPhyCounterSupport =
-	    (AH_PRIVATE(ah)->ah_macVersion == AR_SREV_VERSION_VENICE &&
+	/* enable features that first appeared in Hainan */
+	if ((AH_PRIVATE(ah)->ah_macVersion == AR_SREV_VERSION_VENICE &&
 	     AH_PRIVATE(ah)->ah_macRev == AR_SREV_HAINAN) ||
-	    AH_PRIVATE(ah)->ah_macVersion > AR_SREV_VERSION_VENICE;
+	    AH_PRIVATE(ah)->ah_macVersion > AR_SREV_VERSION_VENICE) {
+		/* h/w phy counters */
+		pCap->halHwPhyCounterSupport = AH_TRUE;
+		/* bssid match disable */
+		pCap->halBssidMatchSupport = AH_TRUE;
+	}
 
 	pCap->halTstampPrecision = 15;
 	pCap->halIntrMask = HAL_INT_COMMON
diff --git a/sys/dev/ath/ath_hal/ar5212/ar5212_recv.c b/sys/dev/ath/ath_hal/ar5212/ar5212_recv.c
index 22bc112..f6d5b33 100644
--- a/sys/dev/ath/ath_hal/ar5212/ar5212_recv.c
+++ b/sys/dev/ath/ath_hal/ar5212/ar5212_recv.c
@@ -14,7 +14,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * $Id: ar5212_recv.c,v 1.4 2008/11/10 04:08:03 sam Exp $
+ * $FreeBSD$
  */
 #include "opt_ah.h"
 
@@ -163,6 +163,9 @@ ar5212GetRxFilter(struct ath_hal *ah)
 		bits |= HAL_RX_FILTER_PHYRADAR;
 	if (phybits & (AR_PHY_ERR_OFDM_TIMING|AR_PHY_ERR_CCK_TIMING))
 		bits |= HAL_RX_FILTER_PHYERR;
+	if (AH_PRIVATE(ah)->ah_caps.halBssidMatchSupport &&
+	    (OS_REG_READ(ah, AR_MISC_MODE) & AR_MISC_MODE_BSSID_MATCH_FORCE))
+		bits |= HAL_RX_FILTER_BSSID;
 	return bits;
 }
 
@@ -175,7 +178,8 @@ ar5212SetRxFilter(struct ath_hal *ah, uint32_t bits)
 	uint32_t phybits;
 
 	OS_REG_WRITE(ah, AR_RX_FILTER,
-	    bits &~ (HAL_RX_FILTER_PHYRADAR|HAL_RX_FILTER_PHYERR));
+	    bits &~ (HAL_RX_FILTER_PHYRADAR|HAL_RX_FILTER_PHYERR|
+	    HAL_RX_FILTER_BSSID));
 	phybits = 0;
 	if (bits & HAL_RX_FILTER_PHYRADAR)
 		phybits |= AR_PHY_ERR_RADAR;
@@ -189,6 +193,14 @@ ar5212SetRxFilter(struct ath_hal *ah, uint32_t bits)
 		OS_REG_WRITE(ah, AR_RXCFG,
 			OS_REG_READ(ah, AR_RXCFG) &~ AR_RXCFG_ZLFDMA);
 	}
+	if (AH_PRIVATE(ah)->ah_caps.halBssidMatchSupport) {
+		uint32_t miscbits = OS_REG_READ(ah, AR_MISC_MODE);
+		if (bits & HAL_RX_FILTER_BSSID)
+			miscbits |= AR_MISC_MODE_BSSID_MATCH_FORCE;
+		else
+			miscbits &= ~AR_MISC_MODE_BSSID_MATCH_FORCE;
+		OS_REG_WRITE(ah, AR_MISC_MODE, miscbits);
+	}
 }
 
 /*
diff --git a/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c b/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
index 01859d0..e59a099 100644
--- a/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
+++ b/sys/dev/ath/ath_hal/ar5416/ar5416_attach.c
@@ -811,6 +811,7 @@ ar5416FillCapabilityInfo(struct ath_hal *ah)
 	pCap->halMbssidAggrSupport = AH_TRUE;
 	pCap->halForcePpmSupport = AH_TRUE;
 	pCap->halEnhancedPmSupport = AH_TRUE;
+	pCap->halBssidMatchSupport = AH_TRUE;
 
 	if (ath_hal_eepromGetFlag(ah, AR_EEP_RFKILL) &&
 	    ath_hal_eepromGet(ah, AR_EEP_RFSILENT, &ahpriv->ah_rfsilent) == HAL_OK) {
diff --git a/sys/dev/ath/if_athvar.h b/sys/dev/ath/if_athvar.h
index 9d9e459..6a1ece2 100644
--- a/sys/dev/ath/if_athvar.h
+++ b/sys/dev/ath/if_athvar.h
@@ -590,6 +590,8 @@ void	ath_intr(void *);
 	(ath_hal_getcapability(_ah, HAL_CAP_FASTFRAME, 0, NULL) == HAL_OK)
 #define	ath_hal_hasbssidmask(_ah) \
 	(ath_hal_getcapability(_ah, HAL_CAP_BSSIDMASK, 0, NULL) == HAL_OK)
+#define	ath_hal_hasbssidmatch(_ah) \
+	(ath_hal_getcapability(_ah, HAL_CAP_BSSIDMATCH, 0, NULL) == HAL_OK)
 #define	ath_hal_hastsfadjust(_ah) \
 	(ath_hal_getcapability(_ah, HAL_CAP_TSF_ADJUST, 0, NULL) == HAL_OK)
 #define	ath_hal_gettsfadjust(_ah) \