Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/linville/wireless-next-2.6 into for-davem

drivers/net/wireless/ath/ar9170/cmd.c

@@ -54,7 +54,7 @@ int ar9170_write_mem(struct ar9170 *ar, const __le32 *data, size_t len)
 
 int ar9170_write_reg(struct ar9170 *ar, const u32 reg, const u32 val)
 {
-	__le32 buf[2] = {
+	const __le32 buf[2] = {
 		cpu_to_le32(reg),
 		cpu_to_le32(val),
 	};

drivers/net/wireless/ath/ath.h

@@ -104,6 +104,11 @@ enum ath_cipher {
 	ATH_CIPHER_MIC = 127
 };
 
+enum ath_drv_info {
+	AR7010_DEVICE		= BIT(0),
+	AR9287_DEVICE		= BIT(1),
+};
+
 /**
  * struct ath_ops - Register read/write operations
  *
@@ -147,6 +152,7 @@ struct ath_common {
 	u8 rx_chainmask;
 
 	u32 rx_bufsize;
+	u32 driver_info;
 
 	u32 keymax;
 	DECLARE_BITMAP(keymap, ATH_KEYMAX);

drivers/net/wireless/ath/ath5k/Kconfig

@@ -4,6 +4,7 @@ config ATH5K
 	select MAC80211_LEDS
 	select LEDS_CLASS
 	select NEW_LEDS
+	select AVERAGE
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros 5xxx chipset.

drivers/net/wireless/ath/ath5k/ani.c

@@ -63,15 +63,15 @@ ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level)
 	 * so i stick with the HAL version for now...
 	 */
 #if 0
-	const s8 hi[] = { -18, -18, -16, -14, -12 };
-	const s8 lo[] = { -52, -56, -60, -64, -70 };
-	const s8 sz[] = { -34, -41, -48, -55, -62 };
-	const s8 fr[] = { -70, -72, -75, -78, -80 };
+	static const s8 hi[] = { -18, -18, -16, -14, -12 };
+	static const s8 lo[] = { -52, -56, -60, -64, -70 };
+	static const s8 sz[] = { -34, -41, -48, -55, -62 };
+	static const s8 fr[] = { -70, -72, -75, -78, -80 };
 #else
-	const s8 sz[] = { -55, -62 };
-	const s8 lo[] = { -64, -70 };
-	const s8 hi[] = { -14, -12 };
-	const s8 fr[] = { -78, -80 };
+	static const s8 sz[] = { -55, -62 };
+	static const s8 lo[] = { -64, -70 };
+	static const s8 hi[] = { -14, -12 };
+	static const s8 fr[] = { -78, -80 };
 #endif
 	if (level < 0 || level >= ARRAY_SIZE(sz)) {
 		ATH5K_ERR(ah->ah_sc, "noise immuniy level %d out of range",
@@ -102,7 +102,7 @@ ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level)
 void
 ath5k_ani_set_spur_immunity_level(struct ath5k_hw *ah, int level)
 {
-	const int val[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
+	static const int val[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
 
 	if (level < 0 || level >= ARRAY_SIZE(val) ||
 	    level > ah->ah_sc->ani_state.max_spur_level) {
@@ -127,7 +127,7 @@ ath5k_ani_set_spur_immunity_level(struct ath5k_hw *ah, int level)
 void
 ath5k_ani_set_firstep_level(struct ath5k_hw *ah, int level)
 {
-	const int val[] = { 0, 4, 8 };
+	static const int val[] = { 0, 4, 8 };
 
 	if (level < 0 || level >= ARRAY_SIZE(val)) {
 		ATH5K_ERR(ah->ah_sc, "firstep level %d out of range", level);
@@ -151,12 +151,12 @@ ath5k_ani_set_firstep_level(struct ath5k_hw *ah, int level)
 void
 ath5k_ani_set_ofdm_weak_signal_detection(struct ath5k_hw *ah, bool on)
 {
-	const int m1l[] = { 127, 50 };
-	const int m2l[] = { 127, 40 };
-	const int m1[] = { 127, 0x4d };
-	const int m2[] = { 127, 0x40 };
-	const int m2cnt[] = { 31, 16 };
-	const int m2lcnt[] = { 63, 48 };
+	static const int m1l[] = { 127, 50 };
+	static const int m2l[] = { 127, 40 };
+	static const int m1[] = { 127, 0x4d };
+	static const int m2[] = { 127, 0x40 };
+	static const int m2cnt[] = { 31, 16 };
+	static const int m2lcnt[] = { 63, 48 };
 
 	AR5K_REG_WRITE_BITS(ah, AR5K_PHY_WEAK_OFDM_LOW_THR,
 				AR5K_PHY_WEAK_OFDM_LOW_THR_M1, m1l[on]);
@@ -192,7 +192,7 @@ ath5k_ani_set_ofdm_weak_signal_detection(struct ath5k_hw *ah, bool on)
 void
 ath5k_ani_set_cck_weak_signal_detection(struct ath5k_hw *ah, bool on)
 {
-	const int val[] = { 8, 6 };
+	static const int val[] = { 8, 6 };
 	AR5K_REG_WRITE_BITS(ah, AR5K_PHY_CCK_CROSSCORR,
 				AR5K_PHY_CCK_CROSSCORR_WEAK_SIG_THR, val[on]);
 	ah->ah_sc->ani_state.cck_weak_sig = on;
@@ -216,7 +216,7 @@ static void
 ath5k_ani_raise_immunity(struct ath5k_hw *ah, struct ath5k_ani_state *as,
 			 bool ofdm_trigger)
 {
-	int rssi = ah->ah_beacon_rssi_avg.avg;
+	int rssi = ewma_read(&ah->ah_beacon_rssi_avg);
 
 	ATH5K_DBG_UNLIMIT(ah->ah_sc, ATH5K_DEBUG_ANI, "raise immunity (%s)",
 		ofdm_trigger ? "ODFM" : "CCK");
@@ -301,7 +301,7 @@ ath5k_ani_raise_immunity(struct ath5k_hw *ah, struct ath5k_ani_state *as,
 static void
 ath5k_ani_lower_immunity(struct ath5k_hw *ah, struct ath5k_ani_state *as)
 {
-	int rssi = ah->ah_beacon_rssi_avg.avg;
+	int rssi = ewma_read(&ah->ah_beacon_rssi_avg);
 
 	ATH5K_DBG_UNLIMIT(ah->ah_sc, ATH5K_DEBUG_ANI, "lower immunity");
 

drivers/net/wireless/ath/ath5k/ath5k.h

@@ -25,6 +25,7 @@
 
 #include <linux/io.h>
 #include <linux/types.h>
+#include <linux/average.h>
 #include <net/mac80211.h>
 
 /* RX/TX descriptor hw structs
@@ -1102,7 +1103,7 @@ struct ath5k_hw {
 	struct ath5k_nfcal_hist ah_nfcal_hist;
 
 	/* average beacon RSSI in our BSS (used by ANI) */
-	struct ath5k_avg_val	ah_beacon_rssi_avg;
+	struct ewma		ah_beacon_rssi_avg;
 
 	/* noise floor from last periodic calibration */
 	s32			ah_noise_floor;
@@ -1315,27 +1316,4 @@ static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits)
 	return retval;
 }
 
-#define AVG_SAMPLES	8
-#define AVG_FACTOR	1000
-
-/**
- * ath5k_moving_average -  Exponentially weighted moving average
- * @avg: average structure
- * @val: current value
- *
- * This implementation make use of a struct ath5k_avg_val to prevent rounding
- * errors.
- */
-static inline struct ath5k_avg_val
-ath5k_moving_average(const struct ath5k_avg_val avg, const int val)
-{
-	struct ath5k_avg_val new;
-	new.avg_weight = avg.avg_weight  ?
-		(((avg.avg_weight * ((AVG_SAMPLES) - 1)) +
-			(val * (AVG_FACTOR))) / (AVG_SAMPLES)) :
-		(val * (AVG_FACTOR));
-	new.avg = new.avg_weight / (AVG_FACTOR);
-	return new;
-}
-
 #endif

drivers/net/wireless/ath/ath5k/base.c

@@ -549,7 +549,7 @@ static void ath_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 	/* Calculate combined mode - when APs are active, operate in AP mode.
 	 * Otherwise use the mode of the new interface. This can currently
 	 * only deal with combinations of APs and STAs. Only one ad-hoc
-	 * interfaces is allowed above.
+	 * interfaces is allowed.
 	 */
 	if (avf->opmode == NL80211_IFTYPE_AP)
 		iter_data->opmode = NL80211_IFTYPE_AP;
@@ -558,14 +558,6 @@ static void ath_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 			iter_data->opmode = avf->opmode;
 }
 
-static void ath_do_set_opmode(struct ath5k_softc *sc)
-{
-	struct ath5k_hw *ah = sc->ah;
-	ath5k_hw_set_opmode(ah, sc->opmode);
-	ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "mode setup opmode %d (%s)\n",
-		  sc->opmode, ath_opmode_to_string(sc->opmode));
-}
-
 static void ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
 					       struct ieee80211_vif *vif)
 {
@@ -595,7 +587,9 @@ static void ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
 		/* Nothing active, default to station mode */
 		sc->opmode = NL80211_IFTYPE_STATION;
 
-	ath_do_set_opmode(sc);
+	ath5k_hw_set_opmode(sc->ah, sc->opmode);
+	ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "mode setup opmode %d (%s)\n",
+		  sc->opmode, ath_opmode_to_string(sc->opmode));
 
 	if (iter_data.need_set_hw_addr && iter_data.found_active)
 		ath5k_hw_set_lladdr(sc->ah, iter_data.active_mac);
@@ -1307,8 +1301,7 @@ ath5k_update_beacon_rssi(struct ath5k_softc *sc, struct sk_buff *skb, int rssi)
 	    memcmp(mgmt->bssid, common->curbssid, ETH_ALEN) != 0)
 		return;
 
-	ah->ah_beacon_rssi_avg = ath5k_moving_average(ah->ah_beacon_rssi_avg,
-						      rssi);
+	ewma_add(&ah->ah_beacon_rssi_avg, rssi);
 
 	/* in IBSS mode we should keep RSSI statistics per neighbour */
 	/* le16_to_cpu(mgmt->u.beacon.capab_info) & WLAN_CAPABILITY_IBSS */
@@ -2562,6 +2555,7 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan)
 	ah->ah_cal_next_full = jiffies;
 	ah->ah_cal_next_ani = jiffies;
 	ah->ah_cal_next_nf = jiffies;
+	ewma_init(&ah->ah_beacon_rssi_avg, 1000, 8);
 
 	/*
 	 * Change channels and update the h/w rate map if we're switching;
@@ -3413,6 +3407,36 @@ static int ath5k_conf_tx(struct ieee80211_hw *hw, u16 queue,
 	return ret;
 }
 
+static int ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+	struct ath5k_softc *sc = hw->priv;
+
+	if (tx_ant == 1 && rx_ant == 1)
+		ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
+	else if (tx_ant == 2 && rx_ant == 2)
+		ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
+	else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3)
+		ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
+	else
+		return -EINVAL;
+	return 0;
+}
+
+static int ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+{
+	struct ath5k_softc *sc = hw->priv;
+
+	switch (sc->ah->ah_ant_mode) {
+	case AR5K_ANTMODE_FIXED_A:
+		*tx_ant = 1; *rx_ant = 1; break;
+	case AR5K_ANTMODE_FIXED_B:
+		*tx_ant = 2; *rx_ant = 2; break;
+	case AR5K_ANTMODE_DEFAULT:
+		*tx_ant = 3; *rx_ant = 3; break;
+	}
+	return 0;
+}
+
 static const struct ieee80211_ops ath5k_hw_ops = {
 	.tx 		= ath5k_tx,
 	.start 		= ath5k_start,
@@ -3433,6 +3457,8 @@ static const struct ieee80211_ops ath5k_hw_ops = {
 	.sw_scan_start	= ath5k_sw_scan_start,
 	.sw_scan_complete = ath5k_sw_scan_complete,
 	.set_coverage_class = ath5k_set_coverage_class,
+	.set_antenna	= ath5k_set_antenna,
+	.get_antenna	= ath5k_get_antenna,
 };
 
 /********************\

drivers/net/wireless/ath/ath5k/debug.c

@@ -719,7 +719,7 @@ static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 			st->mib_intr);
 	len += snprintf(buf+len, sizeof(buf)-len,
 			"beacon RSSI average:\t%d\n",
-			sc->ah->ah_beacon_rssi_avg.avg);
+			(int)ewma_read(&sc->ah->ah_beacon_rssi_avg));
 
 #define CC_PRINT(_struct, _field) \
 	_struct._field, \

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

@@ -834,10 +834,10 @@ void ath9k_hw_ani_setup(struct ath_hw *ah)
 {
 	int i;
 
-	const int totalSizeDesired[] = { -55, -55, -55, -55, -62 };
-	const int coarseHigh[] = { -14, -14, -14, -14, -12 };
-	const int coarseLow[] = { -64, -64, -64, -64, -70 };
-	const int firpwr[] = { -78, -78, -78, -78, -80 };
+	static const int totalSizeDesired[] = { -55, -55, -55, -55, -62 };
+	static const int coarseHigh[] = { -14, -14, -14, -14, -12 };
+	static const int coarseLow[] = { -64, -64, -64, -64, -70 };
+	static const int firpwr[] = { -78, -78, -78, -78, -80 };
 
 	for (i = 0; i < 5; i++) {
 		ah->totalSizeDesired[i] = totalSizeDesired[i];