From a2064b7a4a22d118087898e4308670da7ac07911 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 30 Apr 2010 14:21:48 -0700
Subject: iwlwifi: move _agn statistics related structure

agn and 3945 has different statistics_notif data structure; since 3945
has it statistics_notif data structure inside the _3945 portion of
iwl_priv, it make sense to move the agn statistics_notif into _agn portion.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 4d6de2dfedd..c248373b89e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -105,16 +105,17 @@ int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 	int p = 0;
 
 	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
-		       le32_to_cpu(priv->statistics.flag));
-	if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
+		       le32_to_cpu(priv->_agn.statistics.flag));
+	if (le32_to_cpu(priv->_agn.statistics.flag) &
+			UCODE_STATISTICS_CLEAR_MSK)
 		p += scnprintf(buf + p, bufsz - p,
 			       "\tStatistics have been cleared\n");
 	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
-		       (le32_to_cpu(priv->statistics.flag) &
+		       (le32_to_cpu(priv->_agn.statistics.flag) &
 			UCODE_STATISTICS_FREQUENCY_MSK)
 			? "2.4 GHz" : "5.2 GHz");
 	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
-		       (le32_to_cpu(priv->statistics.flag) &
+		       (le32_to_cpu(priv->_agn.statistics.flag) &
 			UCODE_STATISTICS_NARROW_BAND_MSK)
 			? "enabled" : "disabled");
 	return p;
-- 
cgit v1.2.3-70-g09d2


From 1d60a79ed516edcc62c5f74e4223d21e10a5cc14 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 30 Apr 2010 14:21:49 -0700
Subject: iwlwifi: separate statistics flag function for agn & 3945

Since agn and 3945 have different statistics_notif data structure, each
should has its own statistics_flag function.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-debugfs.c | 28 ++++++++++++++++++++++---
 drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c  | 27 +++++++++++++++++++++---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c      | 22 -------------------
 3 files changed, 49 insertions(+), 28 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-3945-debugfs.c
index 6a9c64a50e3..ef0835b01b6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-debugfs.c
@@ -28,6 +28,28 @@
 
 #include "iwl-3945-debugfs.h"
 
+
+static int iwl3945_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
+{
+	int p = 0;
+
+	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
+		       le32_to_cpu(priv->_3945.statistics.flag));
+	if (le32_to_cpu(priv->_3945.statistics.flag) &
+			UCODE_STATISTICS_CLEAR_MSK)
+		p += scnprintf(buf + p, bufsz - p,
+			       "\tStatistics have been cleared\n");
+	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
+		       (le32_to_cpu(priv->_3945.statistics.flag) &
+			UCODE_STATISTICS_FREQUENCY_MSK)
+			? "2.4 GHz" : "5.2 GHz");
+	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
+		       (le32_to_cpu(priv->_3945.statistics.flag) &
+			UCODE_STATISTICS_NARROW_BAND_MSK)
+			? "enabled" : "disabled");
+	return p;
+}
+
 ssize_t iwl3945_ucode_rx_stats_read(struct file *file,
 				    char __user *user_buf,
 				    size_t count, loff_t *ppos)
@@ -70,7 +92,7 @@ ssize_t iwl3945_ucode_rx_stats_read(struct file *file,
 	max_cck = &priv->_3945.max_delta.rx.cck;
 	max_general = &priv->_3945.max_delta.rx.general;
 
-	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += iwl3945_statistics_flag(priv, buf, bufsz);
 	pos += scnprintf(buf + pos, bufsz - pos, "%-32s     current"
 			 "acumulative       delta         max\n",
 			 "Statistics_Rx - OFDM:");
@@ -331,7 +353,7 @@ ssize_t iwl3945_ucode_tx_stats_read(struct file *file,
 	accum_tx = &priv->_3945.accum_statistics.tx;
 	delta_tx = &priv->_3945.delta_statistics.tx;
 	max_tx = &priv->_3945.max_delta.tx;
-	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += iwl3945_statistics_flag(priv, buf, bufsz);
 	pos += scnprintf(buf + pos, bufsz - pos, "%-32s     current"
 			 "acumulative       delta         max\n",
 			 "Statistics_Tx:");
@@ -438,7 +460,7 @@ ssize_t iwl3945_ucode_general_stats_read(struct file *file,
 	accum_div = &priv->_3945.accum_statistics.general.div;
 	delta_div = &priv->_3945.delta_statistics.general.div;
 	max_div = &priv->_3945.max_delta.general.div;
-	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += iwl3945_statistics_flag(priv, buf, bufsz);
 	pos += scnprintf(buf + pos, bufsz - pos, "%-32s     current"
 			 "acumulative       delta         max\n",
 			 "Statistics_General:");
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
index 90be033ee26..75d6bfcbc60 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
@@ -28,6 +28,27 @@
 
 #include "iwl-agn-debugfs.h"
 
+static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
+{
+	int p = 0;
+
+	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
+		       le32_to_cpu(priv->_agn.statistics.flag));
+	if (le32_to_cpu(priv->_agn.statistics.flag) &
+			UCODE_STATISTICS_CLEAR_MSK)
+		p += scnprintf(buf + p, bufsz - p,
+			       "\tStatistics have been cleared\n");
+	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
+		       (le32_to_cpu(priv->_agn.statistics.flag) &
+			UCODE_STATISTICS_FREQUENCY_MSK)
+			? "2.4 GHz" : "5.2 GHz");
+	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
+		       (le32_to_cpu(priv->_agn.statistics.flag) &
+			UCODE_STATISTICS_NARROW_BAND_MSK)
+			? "enabled" : "disabled");
+	return p;
+}
+
 ssize_t iwl_ucode_rx_stats_read(struct file *file, char __user *user_buf,
 				size_t count, loff_t *ppos)
   {
@@ -75,7 +96,7 @@ ssize_t iwl_ucode_rx_stats_read(struct file *file, char __user *user_buf,
 	max_general = &priv->_agn.max_delta.rx.general;
 	max_ht = &priv->_agn.max_delta.rx.ofdm_ht;
 
-	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += iwl_statistics_flag(priv, buf, bufsz);
 	pos += scnprintf(buf + pos, bufsz - pos, "%-32s     current"
 			 "acumulative       delta         max\n",
 			 "Statistics_Rx - OFDM:");
@@ -543,7 +564,7 @@ ssize_t iwl_ucode_tx_stats_read(struct file *file,
 	accum_tx = &priv->_agn.accum_statistics.tx;
 	delta_tx = &priv->_agn.delta_statistics.tx;
 	max_tx = &priv->_agn.max_delta.tx;
-	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += iwl_statistics_flag(priv, buf, bufsz);
 	pos += scnprintf(buf + pos, bufsz - pos,  "%-32s     current"
 			 "acumulative       delta         max\n",
 			 "Statistics_Tx:");
@@ -768,7 +789,7 @@ ssize_t iwl_ucode_general_stats_read(struct file *file, char __user *user_buf,
 	accum_div = &priv->_agn.accum_statistics.general.div;
 	delta_div = &priv->_agn.delta_statistics.general.div;
 	max_div = &priv->_agn.max_delta.general.div;
-	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += iwl_statistics_flag(priv, buf, bufsz);
 	pos += scnprintf(buf + pos, bufsz - pos, "%-32s     current"
 			 "acumulative       delta         max\n",
 			 "Statistics_General:");
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index c248373b89e..9793050e715 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -100,28 +100,6 @@ static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 	.open = iwl_dbgfs_open_file_generic,                            \
 };
 
-int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
-{
-	int p = 0;
-
-	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
-		       le32_to_cpu(priv->_agn.statistics.flag));
-	if (le32_to_cpu(priv->_agn.statistics.flag) &
-			UCODE_STATISTICS_CLEAR_MSK)
-		p += scnprintf(buf + p, bufsz - p,
-			       "\tStatistics have been cleared\n");
-	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
-		       (le32_to_cpu(priv->_agn.statistics.flag) &
-			UCODE_STATISTICS_FREQUENCY_MSK)
-			? "2.4 GHz" : "5.2 GHz");
-	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
-		       (le32_to_cpu(priv->_agn.statistics.flag) &
-			UCODE_STATISTICS_NARROW_BAND_MSK)
-			? "enabled" : "disabled");
-	return p;
-}
-EXPORT_SYMBOL(iwl_dbgfs_statistics_flag);
-
 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 						char __user *user_buf,
 						size_t count, loff_t *ppos) {
-- 
cgit v1.2.3-70-g09d2


From da73511d4316c4e3efe903e123286c5b55a1999f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 3 May 2010 01:25:24 -0700
Subject: iwlwifi: improve station debugfs

The stations debugfs entry doesn't even show
the stations' MAC addresses Also, the TID
information is formatted very oddly, and
misses the important tfds_in_queue variable.
Fix this to make the file more useful.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 60 +++++++++++++-----------------
 1 file changed, 25 insertions(+), 35 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 9793050e715..5e12c96cc35 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -303,45 +303,35 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 
 	for (i = 0; i < max_sta; i++) {
 		station = &priv->stations[i];
-		if (station->used) {
-			pos += scnprintf(buf + pos, bufsz - pos,
-					"station %d:\ngeneral data:\n", i+1);
-			pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
-					station->sta.sta.sta_id);
-			pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
-					station->sta.mode);
-			pos += scnprintf(buf + pos, bufsz - pos,
-					"flags: 0x%x\n",
-					station->sta.station_flags_msk);
-			pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
-			pos += scnprintf(buf + pos, bufsz - pos,
-					"seq_num\t\ttxq_id");
-			pos += scnprintf(buf + pos, bufsz - pos,
-					"\tframe_count\twait_for_ba\t");
-			pos += scnprintf(buf + pos, bufsz - pos,
-					"start_idx\tbitmap0\t");
-			pos += scnprintf(buf + pos, bufsz - pos,
-					"bitmap1\trate_n_flags");
-			pos += scnprintf(buf + pos, bufsz - pos, "\n");
+		if (!station->used)
+			continue;
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "station %d - addr: %pM, flags: %#x\n",
+				 i, station->sta.sta.addr,
+				 station->sta.station_flags_msk);
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"TID\tseq_num\ttxq_id\tframes\ttfds\t");
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"start_idx\tbitmap\t\t\trate_n_flags\n");
 
-			for (j = 0; j < MAX_TID_COUNT; j++) {
-				pos += scnprintf(buf + pos, bufsz - pos,
-						"[%d]:\t\t%u", j,
-						station->tid[j].seq_number);
-				pos += scnprintf(buf + pos, bufsz - pos,
-						"\t%u\t\t%u\t\t%u\t\t",
-						station->tid[j].agg.txq_id,
-						station->tid[j].agg.frame_count,
-						station->tid[j].agg.wait_for_ba);
+		for (j = 0; j < MAX_TID_COUNT; j++) {
+			pos += scnprintf(buf + pos, bufsz - pos,
+				"%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
+				j, station->tid[j].seq_number,
+				station->tid[j].agg.txq_id,
+				station->tid[j].agg.frame_count,
+				station->tid[j].tfds_in_queue,
+				station->tid[j].agg.start_idx,
+				station->tid[j].agg.bitmap,
+				station->tid[j].agg.rate_n_flags);
+
+			if (station->tid[j].agg.wait_for_ba)
 				pos += scnprintf(buf + pos, bufsz - pos,
-						"%u\t%llu\t%u",
-						station->tid[j].agg.start_idx,
-						(unsigned long long)station->tid[j].agg.bitmap,
-						station->tid[j].agg.rate_n_flags);
-				pos += scnprintf(buf + pos, bufsz - pos, "\n");
-			}
+						 " - waitforba");
 			pos += scnprintf(buf + pos, bufsz - pos, "\n");
 		}
+
+		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 	}
 
 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-- 
cgit v1.2.3-70-g09d2


From f5cc6a224d9f41d963fa4cee35d3db2559e8015d Mon Sep 17 00:00:00 2001
From: Dor Shaish <dor.shaish@intel.com>
Date: Tue, 1 Jun 2010 00:04:08 -0700
Subject: iwlwifi: Fix null pointer referencing in iwl_dbgfs_rx_queue_read.

Test for null pointer prior to access.
Print "Not Allocated" if null pointer.

Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index d9f21bb9d75..cee3d12eb38 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1018,8 +1018,13 @@ static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
 						rxq->write);
 	pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
 						rxq->free_count);
-	pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
+	if (rxq->rb_stts) {
+		pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
 			 le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
+	} else {
+		pos += scnprintf(buf + pos, bufsz - pos,
+					"closed_rb_num: Not Allocated\n");
+	}
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
-- 
cgit v1.2.3-70-g09d2


From 680788aca3dcc24b932eb7a4219ab921ac5bf2d0 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 17 Jun 2010 15:25:00 -0700
Subject: iwlwifi: add a mechanism to disable plcp error checking

For some devices, especially the upcoming new devices, the plcp error
rate is different. Before the correct error rate can be determine, also
for the debugging purpose; add the mechanism to disable plcp error checking
which cause radio reset happen.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c    | 5 +++++
 drivers/net/wireless/iwlwifi/iwl-agn-rx.c  | 6 ++++++
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 4 ++--
 drivers/net/wireless/iwlwifi/iwl-dev.h     | 3 ++-
 4 files changed, 15 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 93d513e1418..a07310fefcf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -406,6 +406,11 @@ static bool iwl3945_good_plcp_health(struct iwl_priv *priv,
 	unsigned int plcp_msec;
 	unsigned long plcp_received_jiffies;
 
+	if (priv->cfg->plcp_delta_threshold ==
+	    IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
+		IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
+		return rc;
+	}
 	memcpy(&current_stat, pkt->u.raw, sizeof(struct
 			iwl3945_notif_statistics));
 	/*
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
index ad2bead25c8..d54edc326f8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
@@ -166,6 +166,12 @@ bool iwl_good_plcp_health(struct iwl_priv *priv,
 	unsigned int plcp_msec;
 	unsigned long plcp_received_jiffies;
 
+	if (priv->cfg->plcp_delta_threshold ==
+	    IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
+		IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
+		return rc;
+	}
+
 	/*
 	 * check for plcp_err and trigger radio reset if it exceeds
 	 * the plcp error threshold plcp_delta.
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index cee3d12eb38..7d9ffc1575d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1430,10 +1430,10 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
 		return -EFAULT;
 	if (sscanf(buf, "%d", &plcp) != 1)
 		return -EINVAL;
-	if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
+	if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
 		(plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
 		priv->cfg->plcp_delta_threshold =
-			IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
+			IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
 	else
 		priv->cfg->plcp_delta_threshold = plcp;
 	return count;
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1af845c0f0b..df07a144c78 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1036,11 +1036,12 @@ struct iwl_event_log {
  * This is the threshold value of plcp error rate per 100mSecs.  It is
  * used to set and check for the validity of plcp_delta.
  */
-#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN	(0)
+#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN	(1)
 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF	(50)
 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF	(100)
 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF	(200)
 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX	(255)
+#define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE	(0)
 
 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
-- 
cgit v1.2.3-70-g09d2


From c04f9f220300da83f71698fa7be24714152faf0d Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Mon, 21 Jun 2010 16:52:55 -0700
Subject: iwlwifi: fix fw_restart module parameter

fw_restart module parameter was broken by the recent check for stuck
queue patch, driver check the fx_restart module parameter
before reload the firmware; but the stuck queue timer kick in after
firmware error and reload the firmware even fw_restart=0. In this case,
driver should not reload the firmware, it is important to help debugging
uCode error.

The only case we can ignore the module parameter is when user request
firmware reload from debugfs, which can bypass the checking and perform
firmware reload all the time.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c    | 31 ++++++++++++++++++++++--------
 drivers/net/wireless/iwlwifi/iwl-core.h    |  2 +-
 drivers/net/wireless/iwlwifi/iwl-debugfs.c |  2 +-
 drivers/net/wireless/iwlwifi/iwl-rx.c      |  4 ++--
 4 files changed, 27 insertions(+), 12 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index a56fb466d0b..f73eb08a949 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2627,7 +2627,7 @@ static void iwl_force_rf_reset(struct iwl_priv *priv)
 }
 
 
-int iwl_force_reset(struct iwl_priv *priv, int mode)
+int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
 {
 	struct iwl_force_reset *force_reset;
 
@@ -2640,12 +2640,14 @@ int iwl_force_reset(struct iwl_priv *priv, int mode)
 	}
 	force_reset = &priv->force_reset[mode];
 	force_reset->reset_request_count++;
-	if (force_reset->last_force_reset_jiffies &&
-	    time_after(force_reset->last_force_reset_jiffies +
-	    force_reset->reset_duration, jiffies)) {
-		IWL_DEBUG_INFO(priv, "force reset rejected\n");
-		force_reset->reset_reject_count++;
-		return -EAGAIN;
+	if (!external) {
+		if (force_reset->last_force_reset_jiffies &&
+		    time_after(force_reset->last_force_reset_jiffies +
+		    force_reset->reset_duration, jiffies)) {
+			IWL_DEBUG_INFO(priv, "force reset rejected\n");
+			force_reset->reset_reject_count++;
+			return -EAGAIN;
+		}
 	}
 	force_reset->reset_success_count++;
 	force_reset->last_force_reset_jiffies = jiffies;
@@ -2655,6 +2657,19 @@ int iwl_force_reset(struct iwl_priv *priv, int mode)
 		iwl_force_rf_reset(priv);
 		break;
 	case IWL_FW_RESET:
+		/*
+		 * if the request is from external(ex: debugfs),
+		 * then always perform the request in regardless the module
+		 * parameter setting
+		 * if the request is from internal (uCode error or driver
+		 * detect failure), then fw_restart module parameter
+		 * need to be check before performing firmware reload
+		 */
+		if (!external && !priv->cfg->mod_params->restart_fw) {
+			IWL_DEBUG_INFO(priv, "Cancel firmware reload based on "
+				       "module parameter setting\n");
+			break;
+		}
 		IWL_ERR(priv, "On demand firmware reload\n");
 		/* Set the FW error flag -- cleared on iwl_down */
 		set_bit(STATUS_FW_ERROR, &priv->status);
@@ -2713,7 +2728,7 @@ static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt)
 					"queue %d stuck %d time. Fw reload.\n",
 					q->id, q->repeat_same_read_ptr);
 				q->repeat_same_read_ptr = 0;
-				iwl_force_reset(priv, IWL_FW_RESET);
+				iwl_force_reset(priv, IWL_FW_RESET, false);
 			} else {
 				q->repeat_same_read_ptr++;
 				IWL_DEBUG_RADIO(priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 15930e06402..bfa34561d9d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -525,7 +525,7 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 		    struct cfg80211_scan_request *req);
 void iwl_bg_start_internal_scan(struct work_struct *work);
 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
-int iwl_force_reset(struct iwl_priv *priv, int mode);
+int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 		       const u8 *ta, const u8 *ie, int ie_len, int left);
 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 7d9ffc1575d..48f890883f4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1487,7 +1487,7 @@ static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
 	switch (reset) {
 	case IWL_RF_RESET:
 	case IWL_FW_RESET:
-		ret = iwl_force_reset(priv, reset);
+		ret = iwl_force_reset(priv, reset, true);
 		break;
 	default:
 		return -EINVAL;
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index b437f317b97..79773e353ba 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -238,7 +238,7 @@ void iwl_recover_from_statistics(struct iwl_priv *priv,
 				 */
 				IWL_ERR(priv, "low ack count detected, "
 					"restart firmware\n");
-				if (!iwl_force_reset(priv, IWL_FW_RESET))
+				if (!iwl_force_reset(priv, IWL_FW_RESET, false))
 					return;
 			}
 		}
@@ -249,7 +249,7 @@ void iwl_recover_from_statistics(struct iwl_priv *priv,
 				 * high plcp error detected
 				 * reset Radio
 				 */
-				iwl_force_reset(priv, IWL_RF_RESET);
+				iwl_force_reset(priv, IWL_RF_RESET, false);
 			}
 		}
 	}
-- 
cgit v1.2.3-70-g09d2


From 4bf49a90bc0bda131ef353cca631025849f36b4e Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 24 Jun 2010 13:18:36 -0700
Subject: iwlwifi: debugfs file for txfifo command testing

Add debugfs file for REPLY_TXFIFO_FLUSH host command testing.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 48f890883f4..088a2c13f59 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1495,6 +1495,30 @@ static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
 	return ret ? ret : count;
 }
 
+static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int flush;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%d", &flush) != 1)
+		return -EINVAL;
+
+	if (iwl_is_rfkill(priv))
+		return -EFAULT;
+
+	priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
+
+	return count;
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1516,6 +1540,7 @@ DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
 DEBUGFS_READ_FILE_OPS(rxon_flags);
 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
+DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
 
 /*
  * Create the debugfs files and directories
@@ -1574,6 +1599,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
 	DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
 	DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
+	if (priv->cfg->ops->lib->dev_txfifo_flush)
+		DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
 
 	if (priv->cfg->sensitivity_calib_by_driver)
 		DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
-- 
cgit v1.2.3-70-g09d2


From 57674308d00b5ebb639ce53d388e61728e0c7f72 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 12 Jul 2010 13:50:06 -0700
Subject: drivers/net/wireless: Remove unnecessary casts of private_data

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/airo.c                   | 22 +++++++++++-----------
 drivers/net/wireless/ath/ath9k/htc_drv_main.c |  9 +++------
 drivers/net/wireless/iwlwifi/iwl-debugfs.c    | 10 +++++-----
 drivers/net/wireless/libertas/debugfs.c       |  4 ++--
 4 files changed, 21 insertions(+), 24 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index a441aad922c..528d5637562 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -4657,7 +4657,7 @@ static ssize_t proc_write( struct file *file,
 			   loff_t *offset )
 {
 	loff_t pos = *offset;
-	struct proc_data *priv = (struct proc_data*)file->private_data;
+	struct proc_data *priv = file->private_data;
 
 	if (!priv->wbuffer)
 		return -EINVAL;
@@ -4689,7 +4689,7 @@ static int proc_status_open(struct inode *inode, struct file *file)
 
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
@@ -4772,7 +4772,7 @@ static int proc_stats_rid_open( struct inode *inode,
 
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kmalloc( 4096, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
@@ -5045,7 +5045,7 @@ static int proc_config_open(struct inode *inode, struct file *file)
 
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
@@ -5127,7 +5127,7 @@ static int proc_config_open(struct inode *inode, struct file *file)
 
 static void proc_SSID_on_close(struct inode *inode, struct file *file)
 {
-	struct proc_data *data = (struct proc_data *)file->private_data;
+	struct proc_data *data = file->private_data;
 	struct proc_dir_entry *dp = PDE(inode);
 	struct net_device *dev = dp->data;
 	struct airo_info *ai = dev->ml_priv;
@@ -5170,7 +5170,7 @@ static inline u8 hexVal(char c) {
 }
 
 static void proc_APList_on_close( struct inode *inode, struct file *file ) {
-	struct proc_data *data = (struct proc_data *)file->private_data;
+	struct proc_data *data = file->private_data;
 	struct proc_dir_entry *dp = PDE(inode);
 	struct net_device *dev = dp->data;
 	struct airo_info *ai = dev->ml_priv;
@@ -5316,7 +5316,7 @@ static void proc_wepkey_on_close( struct inode *inode, struct file *file ) {
 
 	memset(key, 0, sizeof(key));
 
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ( !data->writelen ) return;
 
 	if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' &&
@@ -5370,7 +5370,7 @@ static int proc_wepkey_open( struct inode *inode, struct file *file )
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
 	memset(&wkr, 0, sizeof(wkr));
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kzalloc( 180, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
@@ -5416,7 +5416,7 @@ static int proc_SSID_open(struct inode *inode, struct file *file)
 
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
@@ -5460,7 +5460,7 @@ static int proc_APList_open( struct inode *inode, struct file *file ) {
 
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
@@ -5502,7 +5502,7 @@ static int proc_BSSList_open( struct inode *inode, struct file *file ) {
 
 	if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	data = (struct proc_data *)file->private_data;
+	data = file->private_data;
 	if ((data->rbuffer = kmalloc( 1024, GFP_KERNEL )) == NULL) {
 		kfree (file->private_data);
 		return -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index e38ca66db84..47f76031447 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -492,8 +492,7 @@ static int ath9k_debugfs_open(struct inode *inode, struct file *file)
 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
 				   size_t count, loff_t *ppos)
 {
-	struct ath9k_htc_priv *priv =
-		(struct ath9k_htc_priv *) file->private_data;
+	struct ath9k_htc_priv *priv = file->private_data;
 	struct ath9k_htc_target_stats cmd_rsp;
 	char buf[512];
 	unsigned int len = 0;
@@ -536,8 +535,7 @@ static const struct file_operations fops_tgt_stats = {
 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos)
 {
-	struct ath9k_htc_priv *priv =
-		(struct ath9k_htc_priv *) file->private_data;
+	struct ath9k_htc_priv *priv = file->private_data;
 	char buf[512];
 	unsigned int len = 0;
 
@@ -582,8 +580,7 @@ static const struct file_operations fops_xmit = {
 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos)
 {
-	struct ath9k_htc_priv *priv =
-		(struct ath9k_htc_priv *) file->private_data;
+	struct ath9k_htc_priv *priv = file->private_data;
 	char buf[512];
 	unsigned int len = 0;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 088a2c13f59..7b25d146835 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1267,7 +1267,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
 					char __user *user_buf,
 					size_t count, loff_t *ppos) {
 
-	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_priv *priv = file->private_data;
 	int pos = 0;
 	char buf[128];
 	const size_t bufsz = sizeof(buf);
@@ -1317,7 +1317,7 @@ static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
 					 char __user *user_buf,
 					 size_t count, loff_t *ppos) {
 
-	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_priv *priv = file->private_data;
 	int len = 0;
 	char buf[20];
 
@@ -1329,7 +1329,7 @@ static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
 						char __user *user_buf,
 						size_t count, loff_t *ppos) {
 
-	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_priv *priv = file->private_data;
 	int len = 0;
 	char buf[20];
 
@@ -1342,7 +1342,7 @@ static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
 					 char __user *user_buf,
 					 size_t count, loff_t *ppos)
 {
-	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_priv *priv = file->private_data;
 	char *buf;
 	int pos = 0;
 	ssize_t ret = -EFAULT;
@@ -1404,7 +1404,7 @@ static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
 					char __user *user_buf,
 					size_t count, loff_t *ppos) {
 
-	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_priv *priv = file->private_data;
 	int pos = 0;
 	char buf[12];
 	const size_t bufsz = sizeof(buf);
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index acaf8116462..3db621b18a2 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -905,7 +905,7 @@ static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
 
 	p = buf;
 
-	d = (struct debug_data *)file->private_data;
+	d = file->private_data;
 
 	for (i = 0; i < num_of_items; i++) {
 		if (d[i].size == 1)
@@ -944,7 +944,7 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
 	char *p0;
 	char *p1;
 	char *p2;
-	struct debug_data *d = (struct debug_data *)f->private_data;
+	struct debug_data *d = f->private_data;
 
 	pdata = kmalloc(cnt, GFP_KERNEL);
 	if (pdata == NULL)
-- 
cgit v1.2.3-70-g09d2


From ffb7d896b3bc21e09d77fed45b52b2ff4ce213e5 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Wed, 14 Jul 2010 08:09:55 -0700
Subject: iwlagn: add bluetooth stats to debugfs

For WiFi/BT combo devices, add bluetooth statistics counter
read function to debugfs.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c        |  1 +
 drivers/net/wireless/iwlwifi/iwl-4965.c        |  1 +
 drivers/net/wireless/iwlwifi/iwl-5000.c        |  1 +
 drivers/net/wireless/iwlwifi/iwl-6000.c        |  1 +
 drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c | 87 ++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-agn-debugfs.h |  7 +++
 drivers/net/wireless/iwlwifi/iwl-core.h        |  2 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c     | 13 ++++
 8 files changed, 113 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index c281d07ec5e..8848333bc3a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -222,6 +222,7 @@ static struct iwl_lib_ops iwl1000_lib = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
 		.general_stats_read = iwl_ucode_general_stats_read,
+		.bt_stats_read = iwl_ucode_bt_stats_read,
 	},
 	.recover_from_tx_stall = iwl_bg_monitor_recover,
 	.check_plcp_health = iwl_good_plcp_health,
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 27a776f2f8f..d6531ad3906 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2285,6 +2285,7 @@ static struct iwl_lib_ops iwl4965_lib = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
 		.general_stats_read = iwl_ucode_general_stats_read,
+		.bt_stats_read = iwl_ucode_bt_stats_read,
 	},
 	.recover_from_tx_stall = iwl_bg_monitor_recover,
 	.check_plcp_health = iwl_good_plcp_health,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index a7077cd7afe..8093ce2804f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -398,6 +398,7 @@ static struct iwl_lib_ops iwl5000_lib = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
 		.general_stats_read = iwl_ucode_general_stats_read,
+		.bt_stats_read = iwl_ucode_bt_stats_read,
 	},
 	.recover_from_tx_stall = iwl_bg_monitor_recover,
 	.check_plcp_health = iwl_good_plcp_health,
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index a4e58d85f88..58270529a0e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -323,6 +323,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 		.rx_stats_read = iwl_ucode_rx_stats_read,
 		.tx_stats_read = iwl_ucode_tx_stats_read,
 		.general_stats_read = iwl_ucode_general_stats_read,
+		.bt_stats_read = iwl_ucode_bt_stats_read,
 	},
 	.recover_from_tx_stall = iwl_bg_monitor_recover,
 	.check_plcp_health = iwl_good_plcp_health,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
index 19d1e5e8626..f052c6d09b3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
@@ -924,3 +924,90 @@ ssize_t iwl_ucode_general_stats_read(struct file *file, char __user *user_buf,
 	kfree(buf);
 	return ret;
 }
+
+ssize_t iwl_ucode_bt_stats_read(struct file *file,
+				char __user *user_buf,
+				size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char *buf;
+	int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
+	ssize_t ret;
+	struct statistics_bt_activity *bt, *accum_bt;
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	/* make request to uCode to retrieve statistics information */
+	mutex_lock(&priv->mutex);
+	ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
+	mutex_unlock(&priv->mutex);
+
+	if (ret) {
+		IWL_ERR(priv,
+			"Error sending statistics request: %zd\n", ret);
+		return -EAGAIN;
+	}
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate Buffer\n");
+		return -ENOMEM;
+	}
+
+	/*
+	 * the statistic information display here is based on
+	 * the last statistics notification from uCode
+	 * might not reflect the current uCode activity
+	 */
+	bt = &priv->_agn.statistics_bt.general.activity;
+	accum_bt = &priv->_agn.accum_statistics_bt.general.activity;
+
+	pos += iwl_statistics_flag(priv, buf, bufsz);
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"\t\t\tcurrent\t\t\taccumulative\n");
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->hi_priority_tx_req_cnt),
+			 accum_bt->hi_priority_tx_req_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
+			 accum_bt->hi_priority_tx_denied_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->lo_priority_tx_req_cnt),
+			 accum_bt->lo_priority_tx_req_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
+			 accum_bt->lo_priority_tx_denied_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->hi_priority_rx_req_cnt),
+			 accum_bt->hi_priority_rx_req_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
+			 accum_bt->hi_priority_rx_denied_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->lo_priority_rx_req_cnt),
+			 accum_bt->lo_priority_rx_req_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
+			 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
+			 accum_bt->lo_priority_rx_denied_cnt);
+
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
+			 le32_to_cpu(priv->_agn.statistics_bt.rx.
+				general.num_bt_kills),
+			 priv->_agn.accum_statistics_bt.rx.
+				general.num_bt_kills);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.h b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.h
index 59b1f25f0d8..bbdce5913ac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.h
@@ -37,6 +37,8 @@ ssize_t iwl_ucode_tx_stats_read(struct file *file, char __user *user_buf,
 				size_t count, loff_t *ppos);
 ssize_t iwl_ucode_general_stats_read(struct file *file, char __user *user_buf,
 				     size_t count, loff_t *ppos);
+ssize_t iwl_ucode_bt_stats_read(struct file *file, char __user *user_buf,
+				size_t count, loff_t *ppos);
 #else
 static ssize_t iwl_ucode_rx_stats_read(struct file *file, char __user *user_buf,
 				       size_t count, loff_t *ppos)
@@ -53,4 +55,9 @@ static ssize_t iwl_ucode_general_stats_read(struct file *file, char __user *user
 {
 	return 0;
 }
+static ssize_t iwl_ucode_bt_stats_read(struct file *file, char __user *user_buf,
+				       size_t count, loff_t *ppos)
+{
+	return 0;
+}
 #endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 2954a52a5e8..b60cf453789 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -125,6 +125,8 @@ struct iwl_debugfs_ops {
 				 size_t count, loff_t *ppos);
 	ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 				      size_t count, loff_t *ppos);
+	ssize_t (*bt_stats_read)(struct file *file, char __user *user_buf,
+				 size_t count, loff_t *ppos);
 };
 
 struct iwl_temp_ops {
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 7b25d146835..e96a1bb1278 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1519,6 +1519,16 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
 	return count;
 }
 
+static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+
+	return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
+			user_buf, count, ppos);
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1541,6 +1551,7 @@ DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
 DEBUGFS_READ_FILE_OPS(rxon_flags);
 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
+DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
 
 /*
  * Create the debugfs files and directories
@@ -1608,6 +1619,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 		DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
 	if (priv->cfg->ucode_tracing)
 		DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
+	if (priv->cfg->bt_statistics)
+		DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
 	DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
 	DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
 	if (priv->cfg->sensitivity_calib_by_driver)
-- 
cgit v1.2.3-70-g09d2