Merge commit 'wireless/master'

9 files changed, 279 insertions, 18 deletions

diff --git a/drivers/net/wireless/ath/ar9170/phy.c b/drivers/net/wireless/ath/ar9170/phy.c
index df86f70cd817..108ebfe21fcf 100644
--- a/drivers/net/wireless/ath/ar9170/phy.c
+++ b/drivers/net/wireless/ath/ar9170/phy.c
@@ -396,6 +396,136 @@ static struct ar9170_phy_init ar5416_phy_init[] = {
 	{ 0x1c9384, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, }
 };
 
+/*
+ * look up a certain register in ar5416_phy_init[] and return the init. value
+ * for the band and bandwidth given. Return 0 if register address not found.
+ */
+static u32 ar9170_get_default_phy_reg_val(u32 reg, bool is_2ghz, bool is_40mhz)
+{
+	unsigned int i;
+	for (i = 0; i < ARRAY_SIZE(ar5416_phy_init); i++) {
+		if (ar5416_phy_init[i].reg != reg)
+			continue;
+
+		if (is_2ghz) {
+			if (is_40mhz)
+				return ar5416_phy_init[i]._2ghz_40;
+			else
+				return ar5416_phy_init[i]._2ghz_20;
+		} else {
+			if (is_40mhz)
+				return ar5416_phy_init[i]._5ghz_40;
+			else
+				return ar5416_phy_init[i]._5ghz_20;
+		}
+	}
+	return 0;
+}
+
+/*
+ * initialize some phy regs from eeprom values in modal_header[]
+ * acc. to band and bandwith
+ */
+static int ar9170_init_phy_from_eeprom(struct ar9170 *ar,
+				bool is_2ghz, bool is_40mhz)
+{
+	static const u8 xpd2pd[16] = {
+		0x2, 0x2, 0x2, 0x1, 0x2, 0x2, 0x6, 0x2,
+		0x2, 0x3, 0x7, 0x2, 0xB, 0x2, 0x2, 0x2
+	};
+	u32 defval, newval;
+	/* pointer to the modal_header acc. to band */
+	struct ar9170_eeprom_modal *m = &ar->eeprom.modal_header[is_2ghz];
+
+	ar9170_regwrite_begin(ar);
+
+	/* ant common control (index 0) */
+	newval = le32_to_cpu(m->antCtrlCommon);
+	ar9170_regwrite(0x1c5964, newval);
+
+	/* ant control chain 0 (index 1) */
+	newval = le32_to_cpu(m->antCtrlChain[0]);
+	ar9170_regwrite(0x1c5960, newval);
+
+	/* ant control chain 2 (index 2) */
+	newval = le32_to_cpu(m->antCtrlChain[1]);
+	ar9170_regwrite(0x1c7960, newval);
+
+	/* SwSettle (index 3) */
+	if (!is_40mhz) {
+		defval = ar9170_get_default_phy_reg_val(0x1c5844,
+							is_2ghz, is_40mhz);
+		newval = (defval & ~0x3f80) |
+			((m->switchSettling & 0x7f) << 7);
+		ar9170_regwrite(0x1c5844, newval);
+	}
+
+	/* adcDesired, pdaDesired (index 4) */
+	defval = ar9170_get_default_phy_reg_val(0x1c5850, is_2ghz, is_40mhz);
+	newval = (defval & ~0xffff) | ((u8)m->pgaDesiredSize << 8) |
+		((u8)m->adcDesiredSize);
+	ar9170_regwrite(0x1c5850, newval);
+
+	/* TxEndToXpaOff, TxFrameToXpaOn (index 5) */
+	defval = ar9170_get_default_phy_reg_val(0x1c5834, is_2ghz, is_40mhz);
+	newval = (m->txEndToXpaOff << 24) | (m->txEndToXpaOff << 16) |
+		(m->txFrameToXpaOn << 8) | m->txFrameToXpaOn;
+	ar9170_regwrite(0x1c5834, newval);
+
+	/* TxEndToRxOn (index 6) */
+	defval = ar9170_get_default_phy_reg_val(0x1c5828, is_2ghz, is_40mhz);
+	newval = (defval & ~0xff0000) | (m->txEndToRxOn << 16);
+	ar9170_regwrite(0x1c5828, newval);
+
+	/* thresh62 (index 7) */
+	defval = ar9170_get_default_phy_reg_val(0x1c8864, is_2ghz, is_40mhz);
+	newval = (defval & ~0x7f000) | (m->thresh62 << 12);
+	ar9170_regwrite(0x1c8864, newval);
+
+	/* tx/rx attenuation chain 0 (index 8) */
+	defval = ar9170_get_default_phy_reg_val(0x1c5848, is_2ghz, is_40mhz);
+	newval = (defval & ~0x3f000) | ((m->txRxAttenCh[0] & 0x3f) << 12);
+	ar9170_regwrite(0x1c5848, newval);
+
+	/* tx/rx attenuation chain 2 (index 9) */
+	defval = ar9170_get_default_phy_reg_val(0x1c7848, is_2ghz, is_40mhz);
+	newval = (defval & ~0x3f000) | ((m->txRxAttenCh[1] & 0x3f) << 12);
+	ar9170_regwrite(0x1c7848, newval);
+
+	/* tx/rx margin chain 0 (index 10) */
+	defval = ar9170_get_default_phy_reg_val(0x1c620c, is_2ghz, is_40mhz);
+	newval = (defval & ~0xfc0000) | ((m->rxTxMarginCh[0] & 0x3f) << 18);
+	/* bsw margin chain 0 for 5GHz only */
+	if (!is_2ghz)
+		newval = (newval & ~0x3c00) | ((m->bswMargin[0] & 0xf) << 10);
+	ar9170_regwrite(0x1c620c, newval);
+
+	/* tx/rx margin chain 2 (index 11) */
+	defval = ar9170_get_default_phy_reg_val(0x1c820c, is_2ghz, is_40mhz);
+	newval = (defval & ~0xfc0000) | ((m->rxTxMarginCh[1] & 0x3f) << 18);
+	ar9170_regwrite(0x1c820c, newval);
+
+	/* iqCall, iqCallq chain 0 (index 12) */
+	defval = ar9170_get_default_phy_reg_val(0x1c5920, is_2ghz, is_40mhz);
+	newval = (defval & ~0x7ff) | (((u8)m->iqCalICh[0] & 0x3f) << 5) |
+		((u8)m->iqCalQCh[0] & 0x1f);
+	ar9170_regwrite(0x1c5920, newval);
+
+	/* iqCall, iqCallq chain 2 (index 13) */
+	defval = ar9170_get_default_phy_reg_val(0x1c7920, is_2ghz, is_40mhz);
+	newval = (defval & ~0x7ff) | (((u8)m->iqCalICh[1] & 0x3f) << 5) |
+		((u8)m->iqCalQCh[1] & 0x1f);
+	ar9170_regwrite(0x1c7920, newval);
+
+	/* xpd gain mask (index 14) */
+	defval = ar9170_get_default_phy_reg_val(0x1c6258, is_2ghz, is_40mhz);
+	newval = (defval & ~0xf0000) | (xpd2pd[m->xpdGain & 0xf] << 16);
+	ar9170_regwrite(0x1c6258, newval);
+	ar9170_regwrite_finish();
+
+	return ar9170_regwrite_result();
+}
+
 int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band)
 {
 	int i, err;
@@ -426,7 +556,10 @@ int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band)
 	if (err)
 		return err;
 
-	/* XXX: use EEPROM data here! */
+	/* TODO: (heavy clip) regulatory domain power level fine-tuning. */
+	err = ar9170_init_phy_from_eeprom(ar, is_2ghz, is_40mhz);
+	if (err)
+		return err;
 
 	err = ar9170_init_power_cal(ar);
 	if (err)
@@ -987,6 +1120,124 @@ static u8 ar9170_interpolate_u8(u8 x, u8 x1, u8 y1, u8 x2, u8 y2)
 #undef SHIFT
 }
 
+static u8 ar9170_interpolate_val(u8 x, u8 *x_array, u8 *y_array)
+{
+	int i;
+
+	for (i = 0; i < 3; i++)
+		if (x <= x_array[i + 1])
+			break;
+
+	return ar9170_interpolate_u8(x,
+				     x_array[i],
+				     y_array[i],
+				     x_array[i + 1],
+				     y_array[i + 1]);
+}
+
+static int ar9170_set_freq_cal_data(struct ar9170 *ar,
+				    struct ieee80211_channel *channel)
+{
+	u8 *cal_freq_pier;
+	u8 vpds[2][AR5416_PD_GAIN_ICEPTS];
+	u8 pwrs[2][AR5416_PD_GAIN_ICEPTS];
+	int chain, idx, i;
+	u8 f;
+
+	switch (channel->band) {
+	case IEEE80211_BAND_2GHZ:
+		f = channel->center_freq - 2300;
+		cal_freq_pier = ar->eeprom.cal_freq_pier_2G;
+		i = AR5416_NUM_2G_CAL_PIERS - 1;
+		break;
+
+	case IEEE80211_BAND_5GHZ:
+		f = (channel->center_freq - 4800) / 5;
+		cal_freq_pier = ar->eeprom.cal_freq_pier_5G;
+		i = AR5416_NUM_5G_CAL_PIERS - 1;
+		break;
+
+	default:
+		return -EINVAL;
+		break;
+	}
+
+	for (; i >= 0; i--) {
+		if (cal_freq_pier[i] != 0xff)
+			break;
+	}
+	if (i < 0)
+		return -EINVAL;
+
+	idx = ar9170_find_freq_idx(i, cal_freq_pier, f);
+
+	ar9170_regwrite_begin(ar);
+
+	for (chain = 0; chain < AR5416_MAX_CHAINS; chain++) {
+		for (i = 0; i < AR5416_PD_GAIN_ICEPTS; i++) {
+			struct ar9170_calibration_data_per_freq *cal_pier_data;
+			int j;
+
+			switch (channel->band) {
+			case IEEE80211_BAND_2GHZ:
+				cal_pier_data = &ar->eeprom.
+					cal_pier_data_2G[chain][idx];
+				break;
+
+			case IEEE80211_BAND_5GHZ:
+				cal_pier_data = &ar->eeprom.
+					cal_pier_data_5G[chain][idx];
+				break;
+
+			default:
+				return -EINVAL;
+			}
+
+			for (j = 0; j < 2; j++) {
+				vpds[j][i] = ar9170_interpolate_u8(f,
+					cal_freq_pier[idx],
+					cal_pier_data->vpd_pdg[j][i],
+					cal_freq_pier[idx + 1],
+					cal_pier_data[1].vpd_pdg[j][i]);
+
+				pwrs[j][i] = ar9170_interpolate_u8(f,
+					cal_freq_pier[idx],
+					cal_pier_data->pwr_pdg[j][i],
+					cal_freq_pier[idx + 1],
+					cal_pier_data[1].pwr_pdg[j][i]) / 2;
+			}
+		}
+
+		for (i = 0; i < 76; i++) {
+			u32 phy_data;
+			u8 tmp;
+
+			if (i < 25) {
+				tmp = ar9170_interpolate_val(i, &pwrs[0][0],
+							     &vpds[0][0]);
+			} else {
+				tmp = ar9170_interpolate_val(i - 12,
+							     &pwrs[1][0],
+							     &vpds[1][0]);
+			}
+
+			phy_data |= tmp << ((i & 3) << 3);
+			if ((i & 3) == 3) {
+				ar9170_regwrite(0x1c6280 + chain * 0x1000 +
+						(i & ~3), phy_data);
+				phy_data = 0;
+			}
+		}
+
+		for (i = 19; i < 32; i++)
+			ar9170_regwrite(0x1c6280 + chain * 0x1000 + (i << 2),
+					0x0);
+	}
+
+	ar9170_regwrite_finish();
+	return ar9170_regwrite_result();
+}
+
 static int ar9170_set_power_cal(struct ar9170 *ar, u32 freq, enum ar9170_bw bw)
 {
 	struct ar9170_calibration_target_power_legacy *ctpl;
@@ -1207,6 +1458,10 @@ int ar9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel,
 	if (err)
 		return err;
 
+	err = ar9170_set_freq_cal_data(ar, channel);
+	if (err)
+		return err;
+
 	err = ar9170_set_power_cal(ar, channel->center_freq, bw);
 	if (err)
 		return err;
diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c
index 5618fc25d52f..7dc6301ae201 100644
--- a/drivers/net/wireless/ath/ath9k/ahb.c
+++ b/drivers/net/wireless/ath/ath9k/ahb.c
@@ -120,16 +120,14 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	sc->irq = irq;
 
 	ret = ath_init_device(AR5416_AR9100_DEVID, sc);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
-		ret = -ENODEV;
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize device\n");
 		goto err_free_hw;
 	}
 
 	ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc);
 	if (ret) {
-		dev_err(&pdev->dev, "request_irq failed, err=%d\n", ret);
-		ret = -EIO;
+		dev_err(&pdev->dev, "request_irq failed\n");
 		goto err_detach;
 	}
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 71f27f324cea..011b14f35e50 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3967,7 +3967,8 @@ void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
 {
 	u32 phybits;
 
-	REG_WRITE(ah, AR_RX_FILTER, (bits & 0xffff) | AR_RX_COMPR_BAR);
+	REG_WRITE(ah, AR_RX_FILTER, bits);
+
 	phybits = 0;
 	if (bits & ATH9K_RX_FILTER_PHYRADAR)
 		phybits |= AR_PHY_ERR_RADAR;
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 7b3982295a43..f56e77da6c3e 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -568,6 +568,7 @@ enum ath9k_rx_filter {
 	ATH9K_RX_FILTER_PROBEREQ = 0x00000080,
 	ATH9K_RX_FILTER_PHYERR = 0x00000100,
 	ATH9K_RX_FILTER_MYBEACON = 0x00000200,
+	ATH9K_RX_FILTER_COMP_BAR = 0x00000400,
 	ATH9K_RX_FILTER_PSPOLL = 0x00004000,
 	ATH9K_RX_FILTER_PHYRADAR = 0x00002000,
 	ATH9K_RX_FILTER_MCAST_BCAST_ALL = 0x00008000,
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c2efdf2d72d3..a69fda8a9102 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1879,7 +1879,7 @@ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
 
 	if (chan->band == IEEE80211_BAND_2GHZ) {
 		ichan->chanmode = CHANNEL_G;
-		ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM;
+		ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G;
 	} else {
 		ichan->chanmode = CHANNEL_A;
 		ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
@@ -2433,7 +2433,7 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw,
 	ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
 	ath9k_ps_restore(sc);
 
-	DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter);
+	DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", rfilt);
 }
 
 static void ath9k_sta_notify(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 685a8cebb468..8bb286df71b1 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -160,8 +160,9 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	hw = ieee80211_alloc_hw(sizeof(struct ath_wiphy) +
 				sizeof(struct ath_softc), &ath9k_ops);
-	if (hw == NULL) {
-		printk(KERN_ERR "ath_pci: no memory for ieee80211_hw\n");
+	if (!hw) {
+		dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
+		ret = -ENOMEM;
 		goto bad2;
 	}
 
@@ -178,17 +179,17 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	sc->mem = mem;
 	sc->bus_ops = &ath_pci_bus_ops;
 
-	if (ath_init_device(id->device, sc) != 0) {
-		ret = -ENODEV;
+	ret = ath_init_device(id->device, sc);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize device\n");
 		goto bad3;
 	}
 
 	/* setup interrupt service routine */
 
-	if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) {
-		printk(KERN_ERR "%s: request_irq failed\n",
-			wiphy_name(hw->wiphy));
-		ret = -EIO;
+	ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc);
+	if (ret) {
+		dev_err(&pdev->dev, "request_irq failed\n");
 		goto bad4;
 	}
 
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 52e62daad3ce..ec0abf823995 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -423,6 +423,9 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
 	if (sc->rx.rxfilter & FIF_PSPOLL)
 		rfilt |= ATH9K_RX_FILTER_PSPOLL;
 
+	if (conf_is_ht(&sc->hw->conf))
+		rfilt |= ATH9K_RX_FILTER_COMP_BAR;
+
 	if (sc->sec_wiphy || (sc->rx.rxfilter & FIF_OTHER_BSS)) {
 		/* TODO: only needed if more than one BSSID is in use in
 		 * station/adhoc mode */
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 3ddb243f0000..e5c29eb86e80 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -1325,7 +1325,6 @@ enum {
 #define AR_CFP_VAL          0x0000FFFF
 
 #define AR_RX_FILTER        0x803C
-#define AR_RX_COMPR_BAR     0x00000400
 
 #define AR_MCAST_FIL0       0x8040
 #define AR_MCAST_FIL1       0x8044
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 19c5a9a8d085..79f7a5d9af6d 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -495,6 +495,9 @@ cfg80211_inform_bss(struct wiphy *wiphy,
 
 	kref_init(&res->ref);
 
+	/* cfg80211_bss_update() eats up res - we ensure we free it there */
+	kmemleak_ignore(res);
+
 	res = cfg80211_bss_update(wiphy_to_dev(wiphy), res, 0);
 	if (!res)
 		return NULL;