ath9k_common: Move RX filter code to ath9k_htc

The calculation of RX filter is fairly different
between ath9k and ath9k_htc, trying to make this
common between the two drivers would result in code churn.

While at it, remove the handling of PSPOLL filter,
it can be added when(if) AP support is added to ath9k_htc.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 75 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index ac66cf0b2d53..94e299fabbb2 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -290,10 +290,84 @@ bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv,
 /* RX */
 /******/
 
+/*
+ * Calculate the RX filter to be set in the HW.
+ */
+u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv)
+{
+#define	RX_FILTER_PRESERVE (ATH9K_RX_FILTER_PHYERR | ATH9K_RX_FILTER_PHYRADAR)
+
+	struct ath_hw *ah = priv->ah;
+	u32 rfilt;
+
+	rfilt = (ath9k_hw_getrxfilter(ah) & RX_FILTER_PRESERVE)
+		| ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST
+		| ATH9K_RX_FILTER_MCAST;
+
+	/* If not a STA, enable processing of Probe Requests */
+	if (ah->opmode != NL80211_IFTYPE_STATION)
+		rfilt |= ATH9K_RX_FILTER_PROBEREQ;
+
+	/*
+	 * Set promiscuous mode when FIF_PROMISC_IN_BSS is enabled for station
+	 * mode interface or when in monitor mode. AP mode does not need this
+	 * since it receives all in-BSS frames anyway.
+	 */
+	if (((ah->opmode != NL80211_IFTYPE_AP) &&
+	     (priv->rxfilter & FIF_PROMISC_IN_BSS)) ||
+	    (ah->opmode == NL80211_IFTYPE_MONITOR))
+		rfilt |= ATH9K_RX_FILTER_PROM;
+
+	if (priv->rxfilter & FIF_CONTROL)
+		rfilt |= ATH9K_RX_FILTER_CONTROL;
+
+	if ((ah->opmode == NL80211_IFTYPE_STATION) &&
+	    !(priv->rxfilter & FIF_BCN_PRBRESP_PROMISC))
+		rfilt |= ATH9K_RX_FILTER_MYBEACON;
+	else
+		rfilt |= ATH9K_RX_FILTER_BEACON;
+
+	if (conf_is_ht(&priv->hw->conf))
+		rfilt |= ATH9K_RX_FILTER_COMP_BAR;
+
+	return rfilt;
+
+#undef RX_FILTER_PRESERVE
+}
+
+/*
+ * Recv initialization for opmode change.
+ */
+static void ath9k_htc_opmode_init(struct ath9k_htc_priv *priv)
+{
+	struct ath_hw *ah = priv->ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	u32 rfilt, mfilt[2];
+
+	/* configure rx filter */
+	rfilt = ath9k_htc_calcrxfilter(priv);
+	ath9k_hw_setrxfilter(ah, rfilt);
+
+	/* configure bssid mask */
+	if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
+		ath_hw_setbssidmask(common);
+
+	/* configure operational mode */
+	ath9k_hw_setopmode(ah);
+
+	/* Handle any link-level address change. */
+	ath9k_hw_setmac(ah, common->macaddr);
+
+	/* calculate and install multicast filter */
+	mfilt[0] = mfilt[1] = ~0;
+	ath9k_hw_setmcastfilter(ah, mfilt[0], mfilt[1]);
+}
+
 void ath9k_host_rx_init(struct ath9k_htc_priv *priv)
 {
 	ath9k_hw_rxena(priv->ah);
-	ath9k_cmn_opmode_init(priv->hw, priv->ah, priv->rxfilter);
+	ath9k_htc_opmode_init(priv);
 	ath9k_hw_startpcureceive(priv->ah);
 	priv->rx.last_rssi = ATH_RSSI_DUMMY_MARKER;
 }