Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

15 files changed, 479 insertions, 41 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 383177db7de7..82b9c93dff54 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -46,8 +46,8 @@
 #include "iwl-5000-hw.h"
 
 /* Highest firmware API version supported */
-#define IWL6000_UCODE_API_MAX 3
-#define IWL6050_UCODE_API_MAX 3
+#define IWL6000_UCODE_API_MAX 4
+#define IWL6050_UCODE_API_MAX 4
 
 /* Lowest firmware API version supported */
 #define IWL6000_UCODE_API_MIN 1
@@ -126,6 +126,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 		.release_semaphore = iwlcore_eeprom_release_semaphore,
 		.calib_version	= iwl5000_eeprom_calib_version,
 		.query_addr = iwl5000_eeprom_query_addr,
+		.update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 	},
 	.post_associate = iwl_post_associate,
 	.isr = iwl_isr_ict,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index fee110de5c6a..26ec969e265d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2546,6 +2546,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 			rate_idx = rate_lowest_index(sband, sta);
 		else if (sband->band == IEEE80211_BAND_5GHZ)
 			rate_idx -= IWL_FIRST_OFDM_RATE;
+		info->control.rates[0].flags = 0;
 	}
 	info->control.rates[0].idx = rate_idx;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 2232b1794e76..00457bff1ed1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2155,7 +2155,7 @@ static void iwl_mac_stop(struct ieee80211_hw *hw)
 
 	priv->is_open = 0;
 
-	if (iwl_is_ready_rf(priv)) {
+	if (iwl_is_ready_rf(priv) || test_bit(STATUS_SCAN_HW, &priv->status)) {
 		/* stop mac, cancel any scan request and clear
 		 * RXON_FILTER_ASSOC_MSK BIT
 		 */
@@ -2477,10 +2477,15 @@ static ssize_t store_tx_power(struct device *d,
 	ret = strict_strtoul(buf, 10, &val);
 	if (ret)
 		IWL_INFO(priv, "%s is not in decimal form.\n", buf);
-	else
-		iwl_set_tx_power(priv, val, false);
-
-	return count;
+	else {
+		ret = iwl_set_tx_power(priv, val, false);
+		if (ret)
+			IWL_ERR(priv, "failed setting tx power (0x%d).\n",
+				ret);
+		else
+			ret = count;
+	}
+	return ret;
 }
 
 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index f4303843ff9b..2c5c88fc38f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -886,7 +886,6 @@ struct iwl_qosparam_cmd {
 
 #define STA_FLG_TX_RATE_MSK		cpu_to_le32(1 << 2);
 #define STA_FLG_PWR_SAVE_MSK		cpu_to_le32(1 << 8);
-#define STA_FLG_PWR_SAVE_MSK		cpu_to_le32(1 << 8);
 #define STA_FLG_RTS_MIMO_PROT_MSK	cpu_to_le32(1 << 17)
 #define STA_FLG_AGG_MPDU_8US_MSK	cpu_to_le32(1 << 18)
 #define STA_FLG_MAX_AGG_SIZE_POS	(19)
@@ -2930,6 +2929,20 @@ struct statistics_rx {
 	struct statistics_rx_ht_phy ofdm_ht;
 } __attribute__ ((packed));
 
+/**
+ * struct statistics_tx_power - current tx power
+ *
+ * @ant_a: current tx power on chain a in 1/2 dB step
+ * @ant_b: current tx power on chain b in 1/2 dB step
+ * @ant_c: current tx power on chain c in 1/2 dB step
+ */
+struct statistics_tx_power {
+	u8 ant_a;
+	u8 ant_b;
+	u8 ant_c;
+	u8 reserved;
+} __attribute__ ((packed));
+
 struct statistics_tx_non_phy_agg {
 	__le32 ba_timeout;
 	__le32 ba_reschedule_frames;
@@ -2941,8 +2954,6 @@ struct statistics_tx_non_phy_agg {
 	__le32 underrun;
 	__le32 bt_prio_kill;
 	__le32 rx_ba_rsp_cnt;
-	__le32 reserved2;
-	__le32 reserved3;
 } __attribute__ ((packed));
 
 struct statistics_tx {
@@ -2961,6 +2972,8 @@ struct statistics_tx {
 	__le32 cts_timeout_collision;
 	__le32 ack_or_ba_timeout_collision;
 	struct statistics_tx_non_phy_agg agg;
+	struct statistics_tx_power tx_power;
+	__le32 reserved1;
 } __attribute__ ((packed));
 
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index f1f6dabd8fbd..0bfd4e918139 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -543,8 +543,8 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 
 			geo_ch->flags |= ch->ht40_extension_channel;
 
-			if (ch->max_power_avg > priv->tx_power_channel_lmt)
-				priv->tx_power_channel_lmt = ch->max_power_avg;
+			if (ch->max_power_avg > priv->tx_power_device_lmt)
+				priv->tx_power_device_lmt = ch->max_power_avg;
 		} else {
 			geo_ch->flags |= IEEE80211_CHAN_DISABLED;
 		}
@@ -1671,7 +1671,10 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_cap.val = 0;
 
 	priv->rates_mask = IWL_RATES_MASK;
-	priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
+	/* Set the tx_power_user_lmt to the lowest power level
+	 * this value will get overwritten by channel max power avg
+	 * from eeprom */
+	priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MIN;
 
 	ret = iwl_init_channel_map(priv);
 	if (ret) {
@@ -1698,6 +1701,8 @@ EXPORT_SYMBOL(iwl_init_drv);
 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
 {
 	int ret = 0;
+	s8 prev_tx_power = priv->tx_power_user_lmt;
+
 	if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
 		IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n",
 			 tx_power,
@@ -1705,25 +1710,37 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
 		return -EINVAL;
 	}
 
-	if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) {
-		IWL_WARN(priv, "Requested user TXPOWER %d above upper limit %d.\n",
-			 tx_power,
-			 IWL_TX_POWER_TARGET_POWER_MAX);
+	if (tx_power > priv->tx_power_device_lmt) {
+		IWL_WARN(priv,
+			"Requested user TXPOWER %d above upper limit %d.\n",
+			 tx_power, priv->tx_power_device_lmt);
 		return -EINVAL;
 	}
 
 	if (priv->tx_power_user_lmt != tx_power)
 		force = true;
 
-	priv->tx_power_user_lmt = tx_power;
-
 	/* if nic is not up don't send command */
-	if (!iwl_is_ready_rf(priv))
-		return ret;
-
-	if (force && priv->cfg->ops->lib->send_tx_power)
-		ret = priv->cfg->ops->lib->send_tx_power(priv);
+	if (iwl_is_ready_rf(priv)) {
+		priv->tx_power_user_lmt = tx_power;
+		if (force && priv->cfg->ops->lib->send_tx_power)
+			ret = priv->cfg->ops->lib->send_tx_power(priv);
+		else if (!priv->cfg->ops->lib->send_tx_power)
+			ret = -EOPNOTSUPP;
+		/*
+		 * if fail to set tx_power, restore the orig. tx power
+		 */
+		if (ret)
+			priv->tx_power_user_lmt = prev_tx_power;
+	}
 
+	/*
+	 * Even this is an async host command, the command
+	 * will always report success from uCode
+	 * So once driver can placing the command into the queue
+	 * successfully, driver can use priv->tx_power_user_lmt
+	 * to reflect the current tx power
+	 */
 	return ret;
 }
 EXPORT_SYMBOL(iwl_set_tx_power);
@@ -1806,7 +1823,7 @@ int iwl_reset_ict(struct iwl_priv *priv)
 	spin_lock_irqsave(&priv->lock, flags);
 	iwl_disable_interrupts(priv);
 
-	memset(&priv->ict_tbl[0],0, sizeof(u32) * ICT_COUNT);
+	memset(&priv->ict_tbl[0], 0, sizeof(u32) * ICT_COUNT);
 
 	val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT;
 
@@ -1884,13 +1901,13 @@ irqreturn_t iwl_isr_ict(int irq, void *data)
 	/* read all entries that not 0 start with ict_index */
 	while (priv->ict_tbl[priv->ict_index]) {
 
-		val |= priv->ict_tbl[priv->ict_index];
+		val |= le32_to_cpu(priv->ict_tbl[priv->ict_index]);
 		IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n",
-					priv->ict_index,
-					priv->ict_tbl[priv->ict_index]);
+				priv->ict_index,
+				le32_to_cpu(priv->ict_tbl[priv->ict_index]));
 		priv->ict_tbl[priv->ict_index] = 0;
 		priv->ict_index = iwl_queue_inc_wrap(priv->ict_index,
-								ICT_COUNT);
+						     ICT_COUNT);
 
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 723f38a023ce..cbc62904655d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -107,6 +107,7 @@ struct iwl_debugfs {
 		struct dentry *file_ucode_general_stats;
 		struct dentry *file_sensitivity;
 		struct dentry *file_chain_noise;
+		struct dentry *file_tx_power;
 	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index f68fb4711da2..fb844859a443 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1563,6 +1563,57 @@ static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	char buf[128];
+	int pos = 0;
+	ssize_t ret;
+	const size_t bufsz = sizeof(buf);
+	struct statistics_tx *tx;
+
+	if (!iwl_is_alive(priv))
+		pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
+	else {
+		/* make request to uCode to retrieve statistics information */
+		mutex_lock(&priv->mutex);
+		ret = iwl_send_statistics_request(priv, 0);
+		mutex_unlock(&priv->mutex);
+
+		if (ret) {
+			IWL_ERR(priv, "Error sending statistics request: %zd\n",
+				ret);
+			return -EAGAIN;
+		}
+		tx = &priv->statistics.tx;
+		if (tx->tx_power.ant_a ||
+		    tx->tx_power.ant_b ||
+		    tx->tx_power.ant_c) {
+			pos += scnprintf(buf + pos, bufsz - pos,
+				"tx power: (1/2 dB step)\n");
+			if ((priv->cfg->valid_tx_ant & ANT_A) &&
+			    tx->tx_power.ant_a)
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"\tantenna A: 0x%X\n",
+						tx->tx_power.ant_a);
+			if ((priv->cfg->valid_tx_ant & ANT_B) &&
+			    tx->tx_power.ant_b)
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"\tantenna B: 0x%X\n",
+						tx->tx_power.ant_b);
+			if ((priv->cfg->valid_tx_ant & ANT_C) &&
+			    tx->tx_power.ant_c)
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"\tantenna C: 0x%X\n",
+						tx->tx_power.ant_c);
+		} else
+			pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
+	}
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1573,6 +1624,7 @@ DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
 DEBUGFS_READ_FILE_OPS(sensitivity);
 DEBUGFS_READ_FILE_OPS(chain_noise);
+DEBUGFS_READ_FILE_OPS(tx_power);
 
 /*
  * Create the debugfs files and directories
@@ -1621,6 +1673,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(traffic_log, debug);
 	DEBUGFS_ADD_FILE(rx_queue, debug);
 	DEBUGFS_ADD_FILE(tx_queue, debug);
+	DEBUGFS_ADD_FILE(tx_power, debug);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
 		DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
@@ -1674,6 +1727,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_ucode_rx_stats);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0178734499f0..028d50599550 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1170,7 +1170,7 @@ struct iwl_priv {
 	struct iwl_hw_params hw_params;
 
 	/* INT ICT Table */
-	u32 *ict_tbl;
+	__le32 *ict_tbl;
 	dma_addr_t ict_tbl_dma;
 	dma_addr_t aligned_ict_tbl_dma;
 	int ict_index;
@@ -1215,7 +1215,7 @@ struct iwl_priv {
 
 	/* TX Power */
 	s8 tx_power_user_lmt;
-	s8 tx_power_channel_lmt;
+	s8 tx_power_device_lmt;
 
 
 #ifdef CONFIG_IWLWIFI_DEBUG
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 01b95e89009a..3d2b93a61e62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -135,6 +135,78 @@ static const u8 iwl_eeprom_band_7[] = {       /* 5.2 ht40 channel */
 	36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
 };
 
+/**
+ * struct iwl_txpwr_section: eeprom section information
+ * @offset: indirect address into eeprom image
+ * @count: number of "struct iwl_eeprom_enhanced_txpwr" in this section
+ * @band: band type for the section
+ * @is_common - true: common section, false: channel section
+ * @is_cck - true: cck section, false: not cck section
+ * @is_ht_40 - true: all channel in the section are HT40 channel,
+ * 	       false: legacy or HT 20 MHz
+ *	       ignore if it is common section
+ * @iwl_eeprom_section_channel: channel array in the section,
+ *	       ignore if common section
+ */
+struct iwl_txpwr_section {
+	u32 offset;
+	u8 count;
+	enum ieee80211_band band;
+	bool is_common;
+	bool is_cck;
+	bool is_ht40;
+	u8 iwl_eeprom_section_channel[EEPROM_MAX_TXPOWER_SECTION_ELEMENTS];
+};
+
+/**
+ * section 1 - 3 are regulatory tx power apply to all channels based on
+ *    modulation: CCK, OFDM
+ *    Band: 2.4GHz, 5.2GHz
+ * section 4 - 10 are regulatory tx power apply to specified channels
+ *    For example:
+ *	1L - Channel 1 Legacy
+ *	1HT - Channel 1 HT
+ *	(1,+1) - Channel 1 HT40 "_above_"
+ *
+ * Section 1: all CCK channels
+ * Section 2: all 2.4 GHz OFDM (Legacy, HT and HT40) channels
+ * Section 3: all 5.2 GHz OFDM (Legacy, HT and HT40) channels
+ * Section 4: 2.4 GHz 20MHz channels: 1L, 1HT, 2L, 2HT, 10L, 10HT, 11L, 11HT
+ * Section 5: 2.4 GHz 40MHz channels: (1,+1) (2,+1) (6,+1) (7,+1) (9,+1)
+ * Section 6: 5.2 GHz 20MHz channels: 36L, 64L, 100L, 36HT, 64HT, 100HT
+ * Section 7: 5.2 GHz 40MHz channels: (36,+1) (60,+1) (100,+1)
+ * Section 8: 2.4 GHz channel: 13L, 13HT
+ * Section 9: 2.4 GHz channel: 140L, 140HT
+ * Section 10: 2.4 GHz 40MHz channels: (132,+1)  (44,+1)
+ *
+ */
+static const struct iwl_txpwr_section enhinfo[] = {
+	{ EEPROM_LB_CCK_20_COMMON, 1, IEEE80211_BAND_2GHZ, true, true, false },
+	{ EEPROM_LB_OFDM_COMMON, 3, IEEE80211_BAND_2GHZ, true, false, false },
+	{ EEPROM_HB_OFDM_COMMON, 3, IEEE80211_BAND_5GHZ, true, false, false },
+	{ EEPROM_LB_OFDM_20_BAND, 8, IEEE80211_BAND_2GHZ,
+		false, false, false,
+		{1, 1, 2, 2, 10, 10, 11, 11 } },
+	{ EEPROM_LB_OFDM_HT40_BAND, 5, IEEE80211_BAND_2GHZ,
+		false, false, true,
+		{ 1, 2, 6, 7, 9 } },
+	{ EEPROM_HB_OFDM_20_BAND, 6, IEEE80211_BAND_5GHZ,
+		false, false, false,
+		{ 36, 64, 100, 36, 64, 100 } },
+	{ EEPROM_HB_OFDM_HT40_BAND, 3, IEEE80211_BAND_5GHZ,
+		false, false, true,
+		{ 36, 60, 100 } },
+	{ EEPROM_LB_OFDM_20_CHANNEL_13, 2, IEEE80211_BAND_2GHZ,
+		false, false, false,
+		{ 13, 13 } },
+	{ EEPROM_HB_OFDM_20_CHANNEL_140, 2, IEEE80211_BAND_5GHZ,
+		false, false, false,
+		{ 140, 140 } },
+	{ EEPROM_HB_OFDM_HT40_BAND_1, 2, IEEE80211_BAND_5GHZ,
+		false, false, true,
+		{ 132, 44 } },
+};
+
 /******************************************************************************
  *
  * EEPROM related functions
@@ -643,6 +715,178 @@ static int iwl_mod_ht40_chan_info(struct iwl_priv *priv,
 	return 0;
 }
 
+/**
+ * iwl_get_max_txpower_avg - get the highest tx power from all chains.
+ *     find the highest tx power from all chains for the channel
+ */
+static s8 iwl_get_max_txpower_avg(struct iwl_priv *priv,
+		struct iwl_eeprom_enhanced_txpwr *enhanced_txpower, int element)
+{
+	s8 max_txpower_avg = 0; /* (dBm) */
+
+	IWL_DEBUG_INFO(priv, "%d - "
+			"chain_a: %d dB chain_b: %d dB "
+			"chain_c: %d dB mimo2: %d dB mimo3: %d dB\n",
+			element,
+			enhanced_txpower[element].chain_a_max >> 1,
+			enhanced_txpower[element].chain_b_max >> 1,
+			enhanced_txpower[element].chain_c_max >> 1,
+			enhanced_txpower[element].mimo2_max >> 1,
+			enhanced_txpower[element].mimo3_max >> 1);
+	/* Take the highest tx power from any valid chains */
+	if ((priv->cfg->valid_tx_ant & ANT_A) &&
+	    (enhanced_txpower[element].chain_a_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].chain_a_max;
+	if ((priv->cfg->valid_tx_ant & ANT_B) &&
+	    (enhanced_txpower[element].chain_b_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].chain_b_max;
+	if ((priv->cfg->valid_tx_ant & ANT_C) &&
+	    (enhanced_txpower[element].chain_c_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].chain_c_max;
+	if (((priv->cfg->valid_tx_ant == ANT_AB) |
+	    (priv->cfg->valid_tx_ant == ANT_BC) |
+	    (priv->cfg->valid_tx_ant == ANT_AC)) &&
+	    (enhanced_txpower[element].mimo2_max > max_txpower_avg))
+		max_txpower_avg =  enhanced_txpower[element].mimo2_max;
+	if ((priv->cfg->valid_tx_ant == ANT_ABC) &&
+	    (enhanced_txpower[element].mimo3_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].mimo3_max;
+
+	/* max. tx power in EEPROM is in 1/2 dBm format
+	 * convert from 1/2 dBm to dBm
+	 */
+	return max_txpower_avg >> 1;
+}
+
+/**
+ * iwl_update_common_txpower: update channel tx power
+ *     update tx power per band based on EEPROM enhanced tx power info.
+ */
+static s8 iwl_update_common_txpower(struct iwl_priv *priv,
+		struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
+		int section, int element)
+{
+	struct iwl_channel_info *ch_info;
+	int ch;
+	bool is_ht40 = false;
+	s8 max_txpower_avg; /* (dBm) */
+
+	/* it is common section, contain all type (Legacy, HT and HT40)
+	 * based on the element in the section to determine
+	 * is it HT 40 or not
+	 */
+	if (element == EEPROM_TXPOWER_COMMON_HT40_INDEX)
+		is_ht40 = true;
+	max_txpower_avg =
+		iwl_get_max_txpower_avg(priv, enhanced_txpower, element);
+	ch_info = priv->channel_info;
+
+	for (ch = 0; ch < priv->channel_count; ch++) {
+		/* find matching band and update tx power if needed */
+		if ((ch_info->band == enhinfo[section].band) &&
+		    (ch_info->max_power_avg < max_txpower_avg) && (!is_ht40)) {
+			/* Update regulatory-based run-time data */
+			ch_info->max_power_avg = ch_info->curr_txpow =
+			    max_txpower_avg;
+			ch_info->scan_power = max_txpower_avg;
+		}
+		if ((ch_info->band == enhinfo[section].band) && is_ht40 &&
+		    ch_info->ht40_max_power_avg &&
+		    (ch_info->ht40_max_power_avg < max_txpower_avg)) {
+			/* Update regulatory-based run-time data */
+			ch_info->ht40_max_power_avg = max_txpower_avg;
+			ch_info->ht40_curr_txpow = max_txpower_avg;
+			ch_info->ht40_scan_power = max_txpower_avg;
+		}
+		ch_info++;
+	}
+	return max_txpower_avg;
+}
+
+/**
+ * iwl_update_channel_txpower: update channel tx power
+ *      update channel tx power based on EEPROM enhanced tx power info.
+ */
+static s8 iwl_update_channel_txpower(struct iwl_priv *priv,
+		struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
+		int section, int element)
+{
+	struct iwl_channel_info *ch_info;
+	int ch;
+	u8 channel;
+	s8 max_txpower_avg; /* (dBm) */
+
+	channel = enhinfo[section].iwl_eeprom_section_channel[element];
+	max_txpower_avg =
+		iwl_get_max_txpower_avg(priv, enhanced_txpower, element);
+
+	ch_info = priv->channel_info;
+	for (ch = 0; ch < priv->channel_count; ch++) {
+		/* find matching channel and update tx power if needed */
+		if (ch_info->channel == channel) {
+			if ((ch_info->max_power_avg < max_txpower_avg) &&
+			    (!enhinfo[section].is_ht40)) {
+				/* Update regulatory-based run-time data */
+				ch_info->max_power_avg = max_txpower_avg;
+				ch_info->curr_txpow = max_txpower_avg;
+				ch_info->scan_power = max_txpower_avg;
+			}
+			if ((enhinfo[section].is_ht40) &&
+			    (ch_info->ht40_max_power_avg) &&
+			    (ch_info->ht40_max_power_avg < max_txpower_avg)) {
+				/* Update regulatory-based run-time data */
+				ch_info->ht40_max_power_avg = max_txpower_avg;
+				ch_info->ht40_curr_txpow = max_txpower_avg;
+				ch_info->ht40_scan_power = max_txpower_avg;
+			}
+			break;
+		}
+		ch_info++;
+	}
+	return max_txpower_avg;
+}
+
+/**
+ * iwlcore_eeprom_enhanced_txpower: process enhanced tx power info
+ */
+void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv)
+{
+	int eeprom_section_count = 0;
+	int section, element;
+	struct iwl_eeprom_enhanced_txpwr *enhanced_txpower;
+	u32 offset;
+	s8 max_txpower_avg; /* (dBm) */
+
+	/* Loop through all the sections
+	 * adjust bands and channel's max tx power
+	 * Set the tx_power_user_lmt to the highest power
+	 * supported by any channels and chains
+	 */
+	for (section = 0; section < ARRAY_SIZE(enhinfo); section++) {
+		eeprom_section_count = enhinfo[section].count;
+		offset = enhinfo[section].offset;
+		enhanced_txpower = (struct iwl_eeprom_enhanced_txpwr *)
+				iwl_eeprom_query_addr(priv, offset);
+
+		for (element = 0; element < eeprom_section_count; element++) {
+			if (enhinfo[section].is_common)
+				max_txpower_avg =
+					iwl_update_common_txpower(priv,
+					enhanced_txpower, section, element);
+			else
+				max_txpower_avg =
+					iwl_update_channel_txpower(priv,
+					enhanced_txpower, section, element);
+
+			/* Update the tx_power_user_lmt to the highest power
+			 * supported by any channel */
+			if (max_txpower_avg > priv->tx_power_user_lmt)
+				priv->tx_power_user_lmt = max_txpower_avg;
+		}
+	}
+}
+EXPORT_SYMBOL(iwlcore_eeprom_enhanced_txpower);
+
 #define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
 			    ? # x " " : "")
 
@@ -790,6 +1034,14 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 		}
 	}
 
+	/* for newer device (6000 series and up)
+	 * EEPROM contain enhanced tx power information
+	 * driver need to process addition information
+	 * to determine the max channel tx power limits
+	 */
+	if (priv->cfg->ops->lib->eeprom_ops.update_enhanced_txpower)
+		priv->cfg->ops->lib->eeprom_ops.update_enhanced_txpower(priv);
+
 	return 0;
 }
 EXPORT_SYMBOL(iwl_init_channel_map);
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index ca7920a8f52f..6b68db7b1b81 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -118,6 +118,30 @@ struct iwl_eeprom_channel {
 	s8 max_power_avg;	/* max power (dBm) on this chnl, limit 31 */
 } __attribute__ ((packed));
 
+/**
+ * iwl_eeprom_enhanced_txpwr structure
+ *    This structure presents the enhanced regulatory tx power limit layout
+ *    in eeprom image
+ *    Enhanced regulatory tx power portion of eeprom image can be broken down
+ *    into individual structures; each one is 8 bytes in size and contain the
+ *    following information
+ * @chain_a_max_pwr: chain a max power in 1/2 dBm
+ * @chain_b_max_pwr: chain b max power in 1/2 dBm
+ * @chain_c_max_pwr: chain c max power in 1/2 dBm
+ * @mimo2_max_pwr: mimo2 max power in 1/2 dBm
+ * @mimo3_max_pwr: mimo3 max power in 1/2 dBm
+ *
+ */
+struct iwl_eeprom_enhanced_txpwr {
+	u16 reserved;
+	s8 chain_a_max;
+	s8 chain_b_max;
+	s8 chain_c_max;
+	s8 reserved1;
+	s8 mimo2_max;
+	s8 mimo3_max;
+} __attribute__ ((packed));
+
 /* 3945 Specific */
 #define EEPROM_3945_EEPROM_VERSION	(0x2f)
 
@@ -175,6 +199,59 @@ struct iwl_eeprom_channel {
 #define EEPROM_5000_REG_BAND_52_HT40_CHANNELS  ((0x92)\
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22  bytes */
 
+/* 6000 and up regulatory tx power - indirect access */
+/* max. elements per section */
+#define EEPROM_MAX_TXPOWER_SECTION_ELEMENTS	(8)
+#define EEPROM_TXPOWER_COMMON_HT40_INDEX	(2)
+
+/**
+ * Partition the enhanced tx power portion of eeprom image into
+ * 10 sections based on band, modulation, frequency and channel
+ *
+ * Section 1: all CCK channels
+ * Section 2: all 2.4 GHz OFDM (Legacy, HT and HT40 ) channels
+ * Section 3: all 5.2 GHz OFDM (Legacy, HT and HT40) channels
+ * Section 4: 2.4 GHz 20MHz channels: 1, 2, 10, 11. Both Legacy and HT
+ * Section 5: 2.4 GHz 40MHz channels: 1, 2, 6, 7, 9, (_above_)
+ * Section 6: 5.2 GHz 20MHz channels: 36, 64, 100, both Legacy and HT
+ * Section 7: 5.2 GHz 40MHz channels: 36, 60, 100 (_above_)
+ * Section 8: 2.4 GHz channel 13, Both Legacy and HT
+ * Section 9: 2.4 GHz channel 140, Both Legacy and HT
+ * Section 10: 2.4 GHz 40MHz channels: 132, 44 (_above_)
+ */
+/* 2.4 GHz band: CCK */
+#define EEPROM_LB_CCK_20_COMMON       ((0xAA)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 8 bytes */
+/* 2.4 GHz band: 20MHz-Legacy, 20MHz-HT, 40MHz-HT */
+#define EEPROM_LB_OFDM_COMMON       ((0xB2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
+/* 5.2 GHz band: 20MHz-Legacy, 20MHz-HT, 40MHz-HT */
+#define EEPROM_HB_OFDM_COMMON       ((0xCA)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
+/* 2.4GHz band channels:
+ *	1Legacy, 1HT, 2Legacy, 2HT, 10Legacy, 10HT, 11Legacy, 11HT */
+#define EEPROM_LB_OFDM_20_BAND       ((0xE2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 64 bytes */
+/* 2.4 GHz band HT40 channels: (1,+1) (2,+1) (6,+1) (7,+1) (9,+1) */
+#define EEPROM_LB_OFDM_HT40_BAND       ((0x122)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 40 bytes */
+/* 5.2GHz band channels: 36Legacy, 36HT, 64Legacy, 64HT, 100Legacy, 100HT */
+#define EEPROM_HB_OFDM_20_BAND       ((0x14A)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 48 bytes */
+/* 5.2 GHz band HT40 channels: (36,+1) (60,+1) (100,+1) */
+#define EEPROM_HB_OFDM_HT40_BAND       ((0x17A)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
+/* 2.4 GHz band, channnel 13: Legacy, HT */
+#define EEPROM_LB_OFDM_20_CHANNEL_13       ((0x192)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 16 bytes */
+/* 5.2 GHz band, channnel 140: Legacy, HT */
+#define EEPROM_HB_OFDM_20_CHANNEL_140       ((0x1A2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 16 bytes */
+/* 5.2 GHz band, HT40 channnels (132,+1) (44,+1) */
+#define EEPROM_HB_OFDM_HT40_BAND_1       ((0x1B2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 16 bytes */
+
+
 /* 5050 Specific */
 #define EEPROM_5050_TX_POWER_VERSION    (4)
 #define EEPROM_5050_EEPROM_VERSION	(0x21E)
@@ -389,6 +466,7 @@ struct iwl_eeprom_ops {
 	void (*release_semaphore) (struct iwl_priv *priv);
 	u16 (*calib_version) (struct iwl_priv *priv);
 	const u8* (*query_addr) (const struct iwl_priv *priv, size_t offset);
+	void (*update_enhanced_txpower) (struct iwl_priv *priv);
 };
 
 
@@ -403,7 +481,7 @@ int iwlcore_eeprom_verify_signature(struct iwl_priv *priv);
 int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv);
 void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv);
 const u8 *iwlcore_eeprom_query_addr(const struct iwl_priv *priv, size_t offset);
-
+void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv);
 int iwl_init_channel_map(struct iwl_priv *priv);
 void iwl_free_channel_map(struct iwl_priv *priv);
 const struct iwl_channel_info *iwl_get_channel_info(
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 353d9a2ddbca..e34d3fcb6c3d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -915,6 +915,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	u32 len;
 	u32 ampdu_status;
 	u16 fc;
+	u32 rate_n_flags;
 
 	/**
 	 * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently.
@@ -1032,6 +1033,15 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
 		rx_status.flag |= RX_FLAG_SHORTPRE;
 
+	/* Set up the HT phy flags */
+	rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
+	if (rate_n_flags & RATE_MCS_HT_MSK)
+		rx_status.flag |= RX_FLAG_HT;
+	if (rate_n_flags & RATE_MCS_HT40_MSK)
+		rx_status.flag |= RX_FLAG_40MHZ;
+	if (rate_n_flags & RATE_MCS_SGI_MSK)
+		rx_status.flag |= RX_FLAG_SHORT_GI;
+
 	if (iwl_is_network_packet(priv, header)) {
 		priv->last_rx_rssi = rx_status.signal;
 		priv->last_beacon_time =  priv->ucode_beacon_time;
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index c4c916df4a43..4f3a108fa990 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -796,7 +796,8 @@ void iwl_bg_abort_scan(struct work_struct *work)
 {
 	struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
 
-	if (!iwl_is_ready(priv))
+	if (!test_bit(STATUS_READY, &priv->status) ||
+	    !test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 		return;
 
 	mutex_lock(&priv->mutex);
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index c6633fec8216..a2b9ec82b965 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -520,7 +520,7 @@ int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_WEPKEY,
 		.data = wep_cmd,
-		.flags = CMD_ASYNC,
+		.flags = CMD_SYNC,
 	};
 
 	memset(wep_cmd, 0, cmd_size +
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 7686fc72eb89..7bc9c0039f79 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -718,10 +718,9 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
 #endif
 
-	/* drop all data frame if we are not associated */
+	/* drop all non-injected data frame if we are not associated */
 	if (ieee80211_is_data(fc) &&
-	    (!iwl_is_monitor_mode(priv) ||
-	    !(info->flags & IEEE80211_TX_CTL_INJECTED)) && /* packet injection */
+	    !(info->flags & IEEE80211_TX_CTL_INJECTED) &&
 	    (!iwl_is_associated(priv) ||
 	     ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id) ||
 	     !priv->assoc_station_added)) {
@@ -732,7 +731,10 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	hdr_len = ieee80211_hdrlen(fc);
 
 	/* Find (or create) index into station table for destination station */
-	sta_id = iwl_get_sta_id(priv, hdr);
+	if (info->flags & IEEE80211_TX_CTL_INJECTED)
+		sta_id = priv->hw_params.bcast_sta_id;
+	else
+		sta_id = iwl_get_sta_id(priv, hdr);
 	if (sta_id == IWL_INVALID_STATION) {
 		IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
 			       hdr->addr1);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index f339c5bd1fde..34790413eadd 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -518,9 +518,9 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
 #endif
 
-	/* drop all data frame if we are not associated */
+	/* drop all non-injected data frame if we are not associated */
 	if (ieee80211_is_data(fc) &&
-	    (!iwl_is_monitor_mode(priv)) && /* packet injection */
+	    !(info->flags & IEEE80211_TX_CTL_INJECTED) &&
 	    (!iwl_is_associated(priv) ||
 	     ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
 		IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
@@ -532,7 +532,10 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	hdr_len = ieee80211_hdrlen(fc);
 
 	/* Find (or create) index into station table for destination station */
-	sta_id = iwl_get_sta_id(priv, hdr);
+	if (info->flags & IEEE80211_TX_CTL_INJECTED)
+		sta_id = priv->hw_params.bcast_sta_id;
+	else
+		sta_id = iwl_get_sta_id(priv, hdr);
 	if (sta_id == IWL_INVALID_STATION) {
 		IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
 			       hdr->addr1);