1 files changed, 87 insertions, 35 deletions

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 2bc6f6a8de6..1a79a6c7e30 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -2,6 +2,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/debugfs.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -9,6 +10,9 @@
 struct class *bt_class = NULL;
 EXPORT_SYMBOL_GPL(bt_class);
 
+struct dentry *bt_debugfs = NULL;
+EXPORT_SYMBOL_GPL(bt_debugfs);
+
 static struct workqueue_struct *bt_workq;
 
 static inline char *link_typetostr(int type)
@@ -166,9 +170,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn)
 	queue_work(bt_workq, &conn->work_del);
 }
 
-static inline char *host_typetostr(int type)
+static inline char *host_bustostr(int bus)
 {
-	switch (type) {
+	switch (bus) {
 	case HCI_VIRTUAL:
 		return "VIRTUAL";
 	case HCI_USB:
@@ -188,10 +192,28 @@ static inline char *host_typetostr(int type)
 	}
 }
 
+static inline char *host_typetostr(int type)
+{
+	switch (type) {
+	case HCI_BREDR:
+		return "BR/EDR";
+	case HCI_80211:
+		return "802.11";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
+}
+
 static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
-	return sprintf(buf, "%s\n", host_typetostr(hdev->type));
+	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
 }
 
 static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
@@ -251,32 +273,6 @@ static ssize_t show_hci_revision(struct device *dev, struct device_attribute *at
 	return sprintf(buf, "%d\n", hdev->hci_rev);
 }
 
-static ssize_t show_inquiry_cache(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = dev_get_drvdata(dev);
-	struct inquiry_cache *cache = &hdev->inq_cache;
-	struct inquiry_entry *e;
-	int n = 0;
-
-	hci_dev_lock_bh(hdev);
-
-	for (e = cache->list; e; e = e->next) {
-		struct inquiry_data *data = &e->data;
-		bdaddr_t bdaddr;
-		baswap(&bdaddr, &data->bdaddr);
-		n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
-				batostr(&bdaddr),
-				data->pscan_rep_mode, data->pscan_period_mode,
-				data->pscan_mode, data->dev_class[2],
-				data->dev_class[1], data->dev_class[0],
-				__le16_to_cpu(data->clock_offset),
-				data->rssi, data->ssp_mode, e->timestamp);
-	}
-
-	hci_dev_unlock_bh(hdev);
-	return n;
-}
-
 static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
@@ -355,6 +351,7 @@ static ssize_t store_sniff_min_interval(struct device *dev, struct device_attrib
 	return count;
 }
 
+static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
@@ -363,7 +360,6 @@ static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
 static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
 static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
 static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
-static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
 
 static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
 				show_idle_timeout, store_idle_timeout);
@@ -373,6 +369,7 @@ static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
 				show_sniff_min_interval, store_sniff_min_interval);
 
 static struct attribute *bt_host_attrs[] = {
+	&dev_attr_bus.attr,
 	&dev_attr_type.attr,
 	&dev_attr_name.attr,
 	&dev_attr_class.attr,
@@ -381,7 +378,6 @@ static struct attribute *bt_host_attrs[] = {
 	&dev_attr_manufacturer.attr,
 	&dev_attr_hci_version.attr,
 	&dev_attr_hci_revision.attr,
-	&dev_attr_inquiry_cache.attr,
 	&dev_attr_idle_timeout.attr,
 	&dev_attr_sniff_max_interval.attr,
 	&dev_attr_sniff_min_interval.attr,
@@ -409,12 +405,52 @@ static struct device_type bt_host = {
 	.release = bt_host_release,
 };
 
+static int inquiry_cache_open(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+static ssize_t inquiry_cache_read(struct file *file, char __user *userbuf,
+						size_t count, loff_t *ppos)
+{
+	struct hci_dev *hdev = file->private_data;
+	struct inquiry_cache *cache = &hdev->inq_cache;
+	struct inquiry_entry *e;
+	char buf[4096];
+	int n = 0;
+
+	hci_dev_lock_bh(hdev);
+
+	for (e = cache->list; e; e = e->next) {
+		struct inquiry_data *data = &e->data;
+		bdaddr_t bdaddr;
+		baswap(&bdaddr, &data->bdaddr);
+		n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
+				batostr(&bdaddr),
+				data->pscan_rep_mode, data->pscan_period_mode,
+				data->pscan_mode, data->dev_class[2],
+				data->dev_class[1], data->dev_class[0],
+				__le16_to_cpu(data->clock_offset),
+				data->rssi, data->ssp_mode, e->timestamp);
+	}
+
+	hci_dev_unlock_bh(hdev);
+
+	return simple_read_from_buffer(userbuf, count, ppos, buf, n);
+}
+
+static const struct file_operations inquiry_cache_fops = {
+	.open = inquiry_cache_open,
+	.read = inquiry_cache_read,
+};
+
 int hci_register_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
 	int err;
 
-	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
+	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 
 	dev->type = &bt_host;
 	dev->class = bt_class;
@@ -428,12 +464,24 @@ int hci_register_sysfs(struct hci_dev *hdev)
 	if (err < 0)
 		return err;
 
+	if (!bt_debugfs)
+		return 0;
+
+	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
+	if (!hdev->debugfs)
+		return 0;
+
+	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
+						hdev, &inquiry_cache_fops);
+
 	return 0;
 }
 
 void hci_unregister_sysfs(struct hci_dev *hdev)
 {
-	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
+	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+
+	debugfs_remove_recursive(hdev->debugfs);
 
 	device_del(&hdev->dev);
 }
@@ -444,6 +492,8 @@ int __init bt_sysfs_init(void)
 	if (!bt_workq)
 		return -ENOMEM;
 
+	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
+
 	bt_class = class_create(THIS_MODULE, "bluetooth");
 	if (IS_ERR(bt_class)) {
 		destroy_workqueue(bt_workq);
@@ -455,7 +505,9 @@ int __init bt_sysfs_init(void)
 
 void bt_sysfs_cleanup(void)
 {
-	destroy_workqueue(bt_workq);
-
 	class_destroy(bt_class);
+
+	debugfs_remove_recursive(bt_debugfs);
+
+	destroy_workqueue(bt_workq);
 }