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>

drivers/net/wireless/ath/ath9k/common.c

@@ -303,88 +303,6 @@ int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ath9k_cmn_get_hw_crypto_keytype);
 
-/*
- * Calculate the RX filter to be set in the HW.
- */
-u32 ath9k_cmn_calcrxfilter(struct ieee80211_hw *hw, struct ath_hw *ah,
-			   unsigned int rxfilter)
-{
-#define	RX_FILTER_PRESERVE (ATH9K_RX_FILTER_PHYERR | ATH9K_RX_FILTER_PHYRADAR)
-
-	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) &&
-	     (rxfilter & FIF_PROMISC_IN_BSS)) ||
-	    (ah->opmode == NL80211_IFTYPE_MONITOR))
-		rfilt |= ATH9K_RX_FILTER_PROM;
-
-	if (rxfilter & FIF_CONTROL)
-		rfilt |= ATH9K_RX_FILTER_CONTROL;
-
-	if ((ah->opmode == NL80211_IFTYPE_STATION) &&
-	    !(rxfilter & FIF_BCN_PRBRESP_PROMISC))
-		rfilt |= ATH9K_RX_FILTER_MYBEACON;
-	else
-		rfilt |= ATH9K_RX_FILTER_BEACON;
-
-	if ((AR_SREV_9280_10_OR_LATER(ah) ||
-	    AR_SREV_9285_10_OR_LATER(ah)) &&
-	    (ah->opmode == NL80211_IFTYPE_AP) &&
-	    (rxfilter & FIF_PSPOLL))
-		rfilt |= ATH9K_RX_FILTER_PSPOLL;
-
-	if (conf_is_ht(&hw->conf))
-		rfilt |= ATH9K_RX_FILTER_COMP_BAR;
-
-	return rfilt;
-
-#undef RX_FILTER_PRESERVE
-}
-EXPORT_SYMBOL(ath9k_cmn_calcrxfilter);
-
-/*
- * Recv initialization for opmode change.
- */
-void ath9k_cmn_opmode_init(struct ieee80211_hw *hw, struct ath_hw *ah,
-			   unsigned int rxfilter)
-{
-	struct ath_common *common = ath9k_hw_common(ah);
-
-	u32 rfilt, mfilt[2];
-
-	/* configure rx filter */
-	rfilt = ath9k_cmn_calcrxfilter(hw, ah, rxfilter);
-	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]);
-}
-EXPORT_SYMBOL(ath9k_cmn_opmode_init);
-
 static u32 ath9k_get_extchanmode(struct ieee80211_channel *chan,
 				 enum nl80211_channel_type channel_type)
 {

drivers/net/wireless/ath/ath9k/common.h

@@ -128,10 +128,6 @@ void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
 
 int ath9k_cmn_padpos(__le16 frame_control);
 int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
-u32 ath9k_cmn_calcrxfilter(struct ieee80211_hw *hw, struct ath_hw *ah,
-			   unsigned int rxfilter);
-void ath9k_cmn_opmode_init(struct ieee80211_hw *hw, struct ath_hw *ah,
-			   unsigned int rxfilter);
 void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
 			       struct ath9k_channel *ichan);
 struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,

drivers/net/wireless/ath/ath9k/htc.h

@@ -415,6 +415,7 @@ int ath9k_rx_init(struct ath9k_htc_priv *priv);
 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
 void ath9k_rx_tasklet(unsigned long data);
+u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
 
 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
 void ath9k_init_leds(struct ath9k_htc_priv *priv);

drivers/net/wireless/ath/ath9k/htc_drv_main.c

@@ -1299,7 +1299,7 @@ static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
 	*total_flags &= SUPPORTED_FILTERS;
 
 	priv->rxfilter = *total_flags;
-	rfilt = ath9k_cmn_calcrxfilter(hw, priv->ah, priv->rxfilter);
+	rfilt = ath9k_htc_calcrxfilter(priv);
 	ath9k_hw_setrxfilter(priv->ah, rfilt);
 
 	ath_print(ath9k_hw_common(priv->ah), ATH_DBG_CONFIG,

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;
 }