[deliverable/linux.git] / net / bluetooth / hci_sysfs.c

/* Bluetooth HCI driver model support. */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/module.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

static struct class *bt_class;

struct dentry *bt_debugfs;
EXPORT_SYMBOL_GPL(bt_debugfs);

static inline char *link_typetostr(int type)
{
	switch (type) {
	case ACL_LINK:
		return "ACL";
	case SCO_LINK:
		return "SCO";
	case ESCO_LINK:
		return "eSCO";
	case LE_LINK:
		return "LE";
	default:
		return "UNKNOWN";
	}
}

static ssize_t show_link_type(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_conn *conn = dev_get_drvdata(dev);
	return sprintf(buf, "%s\n", link_typetostr(conn->type));
}

static ssize_t show_link_address(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_conn *conn = dev_get_drvdata(dev);
	return sprintf(buf, "%s\n", batostr(&conn->dst));
}

static ssize_t show_link_features(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_conn *conn = dev_get_drvdata(dev);

	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
				conn->features[0], conn->features[1],
				conn->features[2], conn->features[3],
				conn->features[4], conn->features[5],
				conn->features[6], conn->features[7]);
}

#define LINK_ATTR(_name, _mode, _show, _store) \
struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store)

static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);

static struct attribute *bt_link_attrs[] = {
	&link_attr_type.attr,
	&link_attr_address.attr,
	&link_attr_features.attr,
	NULL
};

static struct attribute_group bt_link_group = {
	.attrs = bt_link_attrs,
};

static const struct attribute_group *bt_link_groups[] = {
	&bt_link_group,
	NULL
};

static void bt_link_release(struct device *dev)
{
	void *data = dev_get_drvdata(dev);
	kfree(data);
}

static struct device_type bt_link = {
	.name    = "link",
	.groups  = bt_link_groups,
	.release = bt_link_release,
};

static void add_conn(struct work_struct *work)
{
	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
	struct hci_dev *hdev = conn->hdev;

	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);

	dev_set_drvdata(&conn->dev, conn);

	if (device_add(&conn->dev) < 0) {
		BT_ERR("Failed to register connection device");
		return;
	}

	hci_dev_hold(hdev);
}

/*
 * The rfcomm tty device will possibly retain even when conn
 * is down, and sysfs doesn't support move zombie device,
 * so we should move the device before conn device is destroyed.
 */
static int __match_tty(struct device *dev, void *data)
{
	return !strncmp(dev_name(dev), "rfcomm", 6);
}

static void del_conn(struct work_struct *work)
{
	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
	struct hci_dev *hdev = conn->hdev;

	if (!device_is_registered(&conn->dev))
		return;

	while (1) {
		struct device *dev;

		dev = device_find_child(&conn->dev, NULL, __match_tty);
		if (!dev)
			break;
		device_move(dev, NULL, DPM_ORDER_DEV_LAST);
		put_device(dev);
	}

	device_del(&conn->dev);
	put_device(&conn->dev);

	hci_dev_put(hdev);
}

void hci_conn_init_sysfs(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;

	BT_DBG("conn %p", conn);

	conn->dev.type = &bt_link;
	conn->dev.class = bt_class;
	conn->dev.parent = &hdev->dev;

	device_initialize(&conn->dev);

	INIT_WORK(&conn->work_add, add_conn);
	INIT_WORK(&conn->work_del, del_conn);
}

void hci_conn_add_sysfs(struct hci_conn *conn)
{
	BT_DBG("conn %p", conn);

	queue_work(conn->hdev->workqueue, &conn->work_add);
}

void hci_conn_del_sysfs(struct hci_conn *conn)
{
	BT_DBG("conn %p", conn);

	queue_work(conn->hdev->workqueue, &conn->work_del);
}

static inline char *host_bustostr(int bus)
{
	switch (bus) {
	case HCI_VIRTUAL:
		return "VIRTUAL";
	case HCI_USB:
		return "USB";
	case HCI_PCCARD:
		return "PCCARD";
	case HCI_UART:
		return "UART";
	case HCI_RS232:
		return "RS232";
	case HCI_PCI:
		return "PCI";
	case HCI_SDIO:
		return "SDIO";
	default:
		return "UNKNOWN";
	}
}

static inline char *host_typetostr(int type)
{
	switch (type) {
	case HCI_BREDR:
		return "BR/EDR";
	case HCI_AMP:
		return "AMP";
	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->dev_type));
}

static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	char name[HCI_MAX_NAME_LENGTH + 1];
	int i;

	for (i = 0; i < HCI_MAX_NAME_LENGTH; i++)
		name[i] = hdev->dev_name[i];

	name[HCI_MAX_NAME_LENGTH] = '\0';
	return sprintf(buf, "%s\n", name);
}

static ssize_t show_class(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "0x%.2x%.2x%.2x\n",
			hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
}

static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
}

static ssize_t show_features(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);

	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
				hdev->features[0], hdev->features[1],
				hdev->features[2], hdev->features[3],
				hdev->features[4], hdev->features[5],
				hdev->features[6], hdev->features[7]);
}

static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", hdev->manufacturer);
}

static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", hdev->hci_ver);
}

static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", hdev->hci_rev);
}

static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", hdev->idle_timeout);
}

static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	unsigned int val;
	int rv;

	rv = kstrtouint(buf, 0, &val);
	if (rv < 0)
		return rv;

	if (val != 0 && (val < 500 || val > 3600000))
		return -EINVAL;

	hdev->idle_timeout = val;

	return count;
}

static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
}

static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	u16 val;
	int rv;

	rv = kstrtou16(buf, 0, &val);
	if (rv < 0)
		return rv;

	if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
		return -EINVAL;

	hdev->sniff_max_interval = val;

	return count;
}

static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
}

static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	u16 val;
	int rv;

	rv = kstrtou16(buf, 0, &val);
	if (rv < 0)
		return rv;

	if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
		return -EINVAL;

	hdev->sniff_min_interval = val;

	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);
static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
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(idle_timeout, S_IRUGO | S_IWUSR,
				show_idle_timeout, store_idle_timeout);
static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
				show_sniff_max_interval, store_sniff_max_interval);
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,
	&dev_attr_address.attr,
	&dev_attr_features.attr,
	&dev_attr_manufacturer.attr,
	&dev_attr_hci_version.attr,
	&dev_attr_hci_revision.attr,
	&dev_attr_idle_timeout.attr,
	&dev_attr_sniff_max_interval.attr,
	&dev_attr_sniff_min_interval.attr,
	NULL
};

static struct attribute_group bt_host_group = {
	.attrs = bt_host_attrs,
};

static const struct attribute_group *bt_host_groups[] = {
	&bt_host_group,
	NULL
};

static void bt_host_release(struct device *dev)
{
	void *data = dev_get_drvdata(dev);
	kfree(data);
}

static struct device_type bt_host = {
	.name    = "host",
	.groups  = bt_host_groups,
	.release = bt_host_release,
};

static int inquiry_cache_show(struct seq_file *f, void *p)
{
	struct hci_dev *hdev = f->private;
	struct inquiry_cache *cache = &hdev->inq_cache;
	struct inquiry_entry *e;

	hci_dev_lock_bh(hdev);

	for (e = cache->list; e; e = e->next) {
		struct inquiry_data *data = &e->data;
		seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
			   batostr(&data->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 0;
}

static int inquiry_cache_open(struct inode *inode, struct file *file)
{
	return single_open(file, inquiry_cache_show, inode->i_private);
}

static const struct file_operations inquiry_cache_fops = {
	.open		= inquiry_cache_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int blacklist_show(struct seq_file *f, void *p)
{
	struct hci_dev *hdev = f->private;
	struct list_head *l;

	hci_dev_lock_bh(hdev);

	list_for_each(l, &hdev->blacklist) {
		struct bdaddr_list *b;

		b = list_entry(l, struct bdaddr_list, list);

		seq_printf(f, "%s\n", batostr(&b->bdaddr));
	}

	hci_dev_unlock_bh(hdev);

	return 0;
}

static int blacklist_open(struct inode *inode, struct file *file)
{
	return single_open(file, blacklist_show, inode->i_private);
}

static const struct file_operations blacklist_fops = {
	.open		= blacklist_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static void print_bt_uuid(struct seq_file *f, u8 *uuid)
{
	u32 data0, data4;
	u16 data1, data2, data3, data5;

	memcpy(&data0, &uuid[0], 4);
	memcpy(&data1, &uuid[4], 2);
	memcpy(&data2, &uuid[6], 2);
	memcpy(&data3, &uuid[8], 2);
	memcpy(&data4, &uuid[10], 4);
	memcpy(&data5, &uuid[14], 2);

	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
				ntohl(data0), ntohs(data1), ntohs(data2),
				ntohs(data3), ntohl(data4), ntohs(data5));
}

static int uuids_show(struct seq_file *f, void *p)
{
	struct hci_dev *hdev = f->private;
	struct list_head *l;

	hci_dev_lock_bh(hdev);

	list_for_each(l, &hdev->uuids) {
		struct bt_uuid *uuid;

		uuid = list_entry(l, struct bt_uuid, list);

		print_bt_uuid(f, uuid->uuid);
	}

	hci_dev_unlock_bh(hdev);

	return 0;
}

static int uuids_open(struct inode *inode, struct file *file)
{
	return single_open(file, uuids_show, inode->i_private);
}

static const struct file_operations uuids_fops = {
	.open		= uuids_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int auto_accept_delay_set(void *data, u64 val)
{
	struct hci_dev *hdev = data;

	hci_dev_lock_bh(hdev);

	hdev->auto_accept_delay = val;

	hci_dev_unlock_bh(hdev);

	return 0;
}

static int auto_accept_delay_get(void *data, u64 *val)
{
	struct hci_dev *hdev = data;

	hci_dev_lock_bh(hdev);

	*val = hdev->auto_accept_delay;

	hci_dev_unlock_bh(hdev);

	return 0;
}

DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
					auto_accept_delay_set, "%llu\n");

int hci_register_sysfs(struct hci_dev *hdev)
{
	struct device *dev = &hdev->dev;
	int err;

	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);

	dev->type = &bt_host;
	dev->class = bt_class;
	dev->parent = hdev->parent;

	dev_set_name(dev, "%s", hdev->name);

	dev_set_drvdata(dev, hdev);

	err = device_register(dev);
	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);

	debugfs_create_file("blacklist", 0444, hdev->debugfs,
						hdev, &blacklist_fops);

	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);

	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
						&auto_accept_delay_fops);
	return 0;
}

void hci_unregister_sysfs(struct hci_dev *hdev)
{
	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);

	debugfs_remove_recursive(hdev->debugfs);

	device_del(&hdev->dev);
}

int __init bt_sysfs_init(void)
{
	bt_debugfs = debugfs_create_dir("bluetooth", NULL);

	bt_class = class_create(THIS_MODULE, "bluetooth");
	if (IS_ERR(bt_class))
		return PTR_ERR(bt_class);

	return 0;
}

void bt_sysfs_cleanup(void)
{
	class_destroy(bt_class);

	debugfs_remove_recursive(bt_debugfs);
}
Commit	Line	Data
1da177e4 LT	1	/* Bluetooth HCI driver model support. */
1da177e4 LT	2
1da177e4	3	#include <linux/kernel.h>
5a0e3ad6	4	#include <linux/slab.h>
1da177e4	5	#include <linux/init.h>
ca325f69	6	#include <linux/debugfs.h>
d4612cb8	7	#include <linux/seq_file.h>
3a9a231d	8	#include <linux/module.h>
1da177e4 LT	9
	10	#include <net/bluetooth/bluetooth.h>
	11	#include <net/bluetooth/hci_core.h>
	12
aef7d97c	13	static struct class *bt_class;
90855d7b	14
602f9887	15	struct dentry *bt_debugfs;
ca325f69 MH	16	EXPORT_SYMBOL_GPL(bt_debugfs);
ca325f69 MH	17
90855d7b MH	18	static inline char *link_typetostr(int type)
	19	{
	20	switch (type) {
	21	case ACL_LINK:
	22	return "ACL";
	23	case SCO_LINK:
	24	return "SCO";
	25	case ESCO_LINK:
	26	return "eSCO";
21061df3 PH	27	case LE_LINK:
21061df3 PH	28	return "LE";
90855d7b MH	29	default:
	30	return "UNKNOWN";
	31	}
	32	}
	33
	34	static ssize_t show_link_type(struct device dev, struct device_attribute attr, char *buf)
	35	{
	36	struct hci_conn *conn = dev_get_drvdata(dev);
	37	return sprintf(buf, "%s\n", link_typetostr(conn->type));
	38	}
	39
	40	static ssize_t show_link_address(struct device dev, struct device_attribute attr, char *buf)
	41	{
	42	struct hci_conn *conn = dev_get_drvdata(dev);
d6b2eb2f	43	return sprintf(buf, "%s\n", batostr(&conn->dst));
90855d7b MH	44	}
	45
	46	static ssize_t show_link_features(struct device dev, struct device_attribute attr, char *buf)
	47	{
	48	struct hci_conn *conn = dev_get_drvdata(dev);
	49
	50	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	51	conn->features[0], conn->features[1],
	52	conn->features[2], conn->features[3],
	53	conn->features[4], conn->features[5],
	54	conn->features[6], conn->features[7]);
	55	}
	56
602f9887 GP	57	#define LINK_ATTR(_name, _mode, _show, _store) \
602f9887 GP	58	struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store)
90855d7b MH	59
	60	static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
	61	static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
	62	static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
	63
	64	static struct attribute *bt_link_attrs[] = {
	65	&link_attr_type.attr,
	66	&link_attr_address.attr,
	67	&link_attr_features.attr,
	68	NULL
	69	};
	70
	71	static struct attribute_group bt_link_group = {
	72	.attrs = bt_link_attrs,
	73	};
	74
a4dbd674	75	static const struct attribute_group *bt_link_groups[] = {
90855d7b MH	76	&bt_link_group,
	77	NULL
	78	};
	79
	80	static void bt_link_release(struct device *dev)
	81	{
	82	void *data = dev_get_drvdata(dev);
	83	kfree(data);
	84	}
	85
	86	static struct device_type bt_link = {
	87	.name = "link",
	88	.groups = bt_link_groups,
	89	.release = bt_link_release,
	90	};
	91
	92	static void add_conn(struct work_struct *work)
	93	{
f3784d83	94	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
457ca7bb	95	struct hci_dev *hdev = conn->hdev;
90855d7b	96
457ca7bb MH	97	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
457ca7bb MH	98
f74c77cb DY	99	dev_set_drvdata(&conn->dev, conn);
f74c77cb DY	100
90855d7b MH	101	if (device_add(&conn->dev) < 0) {
	102	BT_ERR("Failed to register connection device");
	103	return;
	104	}
384943ec MH	105
384943ec MH	106	hci_dev_hold(hdev);
90855d7b MH	107	}
90855d7b MH	108
90855d7b MH	109	/*
	110	* The rfcomm tty device will possibly retain even when conn
	111	* is down, and sysfs doesn't support move zombie device,
	112	* so we should move the device before conn device is destroyed.
	113	*/
	114	static int __match_tty(struct device dev, void data)
	115	{
fb28ad35	116	return !strncmp(dev_name(dev), "rfcomm", 6);
90855d7b MH	117	}
	118
	119	static void del_conn(struct work_struct *work)
	120	{
f3784d83	121	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
90855d7b MH	122	struct hci_dev *hdev = conn->hdev;
90855d7b MH	123
a67e899c MH	124	if (!device_is_registered(&conn->dev))
a67e899c MH	125	return;
f3784d83	126
90855d7b MH	127	while (1) {
	128	struct device *dev;
	129
	130	dev = device_find_child(&conn->dev, NULL, __match_tty);
	131	if (!dev)
	132	break;
ffa6a705	133	device_move(dev, NULL, DPM_ORDER_DEV_LAST);
90855d7b MH	134	put_device(dev);
	135	}
	136
	137	device_del(&conn->dev);
	138	put_device(&conn->dev);
384943ec	139
90855d7b MH	140	hci_dev_put(hdev);
	141	}
	142
a67e899c	143	void hci_conn_init_sysfs(struct hci_conn *conn)
90855d7b	144	{
a67e899c MH	145	struct hci_dev *hdev = conn->hdev;
a67e899c MH	146
90855d7b MH	147	BT_DBG("conn %p", conn);
90855d7b MH	148
a67e899c MH	149	conn->dev.type = &bt_link;
	150	conn->dev.class = bt_class;
	151	conn->dev.parent = &hdev->dev;
	152
a67e899c MH	153	device_initialize(&conn->dev);
	154
	155	INIT_WORK(&conn->work_add, add_conn);
f3784d83	156	INIT_WORK(&conn->work_del, del_conn);
a67e899c MH	157	}
	158
	159	void hci_conn_add_sysfs(struct hci_conn *conn)
	160	{
a67e899c MH	161	BT_DBG("conn %p", conn);
a67e899c MH	162
f48fd9c8	163	queue_work(conn->hdev->workqueue, &conn->work_add);
a67e899c MH	164	}
	165
	166	void hci_conn_del_sysfs(struct hci_conn *conn)
	167	{
	168	BT_DBG("conn %p", conn);
90855d7b	169
f48fd9c8	170	queue_work(conn->hdev->workqueue, &conn->work_del);
90855d7b MH	171	}
90855d7b MH	172
c13854ce	173	static inline char *host_bustostr(int bus)
1da177e4	174	{
c13854ce	175	switch (bus) {
0ac53939	176	case HCI_VIRTUAL:
4d0eb004 MH	177	return "VIRTUAL";
	178	case HCI_USB:
	179	return "USB";
	180	case HCI_PCCARD:
	181	return "PCCARD";
	182	case HCI_UART:
	183	return "UART";
	184	case HCI_RS232:
	185	return "RS232";
	186	case HCI_PCI:
	187	return "PCI";
0ac53939 MH	188	case HCI_SDIO:
0ac53939 MH	189	return "SDIO";
4d0eb004 MH	190	default:
	191	return "UNKNOWN";
	192	}
1da177e4 LT	193	}
1da177e4 LT	194
943da25d MH	195	static inline char *host_typetostr(int type)
	196	{
	197	switch (type) {
	198	case HCI_BREDR:
	199	return "BR/EDR";
8f1e1742 DV	200	case HCI_AMP:
8f1e1742 DV	201	return "AMP";
943da25d MH	202	default:
	203	return "UNKNOWN";
	204	}
	205	}
	206
c13854ce	207	static ssize_t show_bus(struct device dev, struct device_attribute attr, char *buf)
1da177e4	208	{
a91f2e39	209	struct hci_dev *hdev = dev_get_drvdata(dev);
c13854ce	210	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
1da177e4 LT	211	}
1da177e4 LT	212
943da25d MH	213	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
	214	{
	215	struct hci_dev *hdev = dev_get_drvdata(dev);
	216	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
	217	}
	218
a9de9248 MH	219	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	220	{
	221	struct hci_dev *hdev = dev_get_drvdata(dev);
1f6c6378	222	char name[HCI_MAX_NAME_LENGTH + 1];
a9de9248 MH	223	int i;
a9de9248 MH	224
1f6c6378	225	for (i = 0; i < HCI_MAX_NAME_LENGTH; i++)
a9de9248 MH	226	name[i] = hdev->dev_name[i];
a9de9248 MH	227
1f6c6378	228	name[HCI_MAX_NAME_LENGTH] = '\0';
a9de9248 MH	229	return sprintf(buf, "%s\n", name);
	230	}
	231
	232	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	233	{
	234	struct hci_dev *hdev = dev_get_drvdata(dev);
	235	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	236	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	237	}
	238
a91f2e39	239	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	240	{
a91f2e39	241	struct hci_dev *hdev = dev_get_drvdata(dev);
d6b2eb2f	242	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
1da177e4 LT	243	}
1da177e4 LT	244
a9de9248 MH	245	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	246	{
	247	struct hci_dev *hdev = dev_get_drvdata(dev);
	248
	249	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	250	hdev->features[0], hdev->features[1],
	251	hdev->features[2], hdev->features[3],
	252	hdev->features[4], hdev->features[5],
	253	hdev->features[6], hdev->features[7]);
	254	}
	255
1143e5a6 MH	256	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
	257	{
	258	struct hci_dev *hdev = dev_get_drvdata(dev);
	259	return sprintf(buf, "%d\n", hdev->manufacturer);
	260	}
	261
	262	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	263	{
	264	struct hci_dev *hdev = dev_get_drvdata(dev);
	265	return sprintf(buf, "%d\n", hdev->hci_ver);
	266	}
	267
	268	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	269	{
	270	struct hci_dev *hdev = dev_get_drvdata(dev);
	271	return sprintf(buf, "%d\n", hdev->hci_rev);
	272	}
	273
a91f2e39	274	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	275	{
a91f2e39	276	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	277	return sprintf(buf, "%d\n", hdev->idle_timeout);
	278	}
	279
a91f2e39	280	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	281	{
a91f2e39	282	struct hci_dev *hdev = dev_get_drvdata(dev);
db940cb0 AD	283	unsigned int val;
db940cb0 AD	284	int rv;
04837f64	285
db940cb0 AD	286	rv = kstrtouint(buf, 0, &val);
	287	if (rv < 0)
	288	return rv;
04837f64 MH	289
	290	if (val != 0 && (val < 500 \|\| val > 3600000))
	291	return -EINVAL;
	292
	293	hdev->idle_timeout = val;
	294
	295	return count;
	296	}
	297
a91f2e39	298	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	299	{
a91f2e39	300	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	301	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	302	}
	303
a91f2e39	304	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	305	{
a91f2e39	306	struct hci_dev *hdev = dev_get_drvdata(dev);
db940cb0 AD	307	u16 val;
db940cb0 AD	308	int rv;
04837f64	309
db940cb0 AD	310	rv = kstrtou16(buf, 0, &val);
	311	if (rv < 0)
	312	return rv;
04837f64	313
db940cb0	314	if (val == 0 \|\| val % 2 \|\| val < hdev->sniff_min_interval)
04837f64 MH	315	return -EINVAL;
	316
	317	hdev->sniff_max_interval = val;
	318
	319	return count;
	320	}
	321
a91f2e39	322	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	323	{
a91f2e39	324	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	325	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	326	}
	327
a91f2e39	328	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	329	{
a91f2e39	330	struct hci_dev *hdev = dev_get_drvdata(dev);
db940cb0 AD	331	u16 val;
db940cb0 AD	332	int rv;
04837f64	333
db940cb0 AD	334	rv = kstrtou16(buf, 0, &val);
	335	if (rv < 0)
	336	return rv;
04837f64	337
db940cb0	338	if (val == 0 \|\| val % 2 \|\| val > hdev->sniff_max_interval)
04837f64 MH	339	return -EINVAL;
	340
	341	hdev->sniff_min_interval = val;
	342
	343	return count;
	344	}
	345
c13854ce	346	static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
943da25d	347	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	348	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	349	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	350	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	351	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	352	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	353	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	354	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
1da177e4	355
a91f2e39	356	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	357	show_idle_timeout, store_idle_timeout);
a91f2e39	358	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	359	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	360	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	361	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	362
90855d7b	363	static struct attribute *bt_host_attrs[] = {
c13854ce	364	&dev_attr_bus.attr,
943da25d	365	&dev_attr_type.attr,
90855d7b MH	366	&dev_attr_name.attr,
	367	&dev_attr_class.attr,
	368	&dev_attr_address.attr,
	369	&dev_attr_features.attr,
	370	&dev_attr_manufacturer.attr,
	371	&dev_attr_hci_version.attr,
	372	&dev_attr_hci_revision.attr,
90855d7b MH	373	&dev_attr_idle_timeout.attr,
	374	&dev_attr_sniff_max_interval.attr,
	375	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	376	NULL
	377	};
	378
90855d7b MH	379	static struct attribute_group bt_host_group = {
90855d7b MH	380	.attrs = bt_host_attrs,
b219e3ac MH	381	};
b219e3ac MH	382
a4dbd674	383	static const struct attribute_group *bt_host_groups[] = {
90855d7b MH	384	&bt_host_group,
90855d7b MH	385	NULL
27d35284 MH	386	};
27d35284 MH	387
90855d7b	388	static void bt_host_release(struct device *dev)
a91f2e39	389	{
b219e3ac MH	390	void *data = dev_get_drvdata(dev);
	391	kfree(data);
	392	}
	393
90855d7b MH	394	static struct device_type bt_host = {
	395	.name = "host",
	396	.groups = bt_host_groups,
	397	.release = bt_host_release,
	398	};
a91f2e39	399
d4612cb8	400	static int inquiry_cache_show(struct seq_file f, void p)
ca325f69	401	{
d4612cb8	402	struct hci_dev *hdev = f->private;
ca325f69 MH	403	struct inquiry_cache *cache = &hdev->inq_cache;
ca325f69 MH	404	struct inquiry_entry *e;
ca325f69 MH	405
	406	hci_dev_lock_bh(hdev);
	407
	408	for (e = cache->list; e; e = e->next) {
	409	struct inquiry_data *data = &e->data;
d4612cb8	410	seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
d6b2eb2f	411	batostr(&data->bdaddr),
d4612cb8 MH	412	data->pscan_rep_mode, data->pscan_period_mode,
	413	data->pscan_mode, data->dev_class[2],
	414	data->dev_class[1], data->dev_class[0],
	415	__le16_to_cpu(data->clock_offset),
	416	data->rssi, data->ssp_mode, e->timestamp);
ca325f69 MH	417	}
	418
	419	hci_dev_unlock_bh(hdev);
	420
d4612cb8 MH	421	return 0;
	422	}
	423
	424	static int inquiry_cache_open(struct inode inode, struct file file)
	425	{
	426	return single_open(file, inquiry_cache_show, inode->i_private);
ca325f69 MH	427	}
	428
	429	static const struct file_operations inquiry_cache_fops = {
d4612cb8 MH	430	.open = inquiry_cache_open,
	431	.read = seq_read,
	432	.llseek = seq_lseek,
	433	.release = single_release,
ca325f69 MH	434	};
ca325f69 MH	435
32c2ece5 JH	436	static int blacklist_show(struct seq_file f, void p)
	437	{
	438	struct hci_dev *hdev = f->private;
32c2ece5 JH	439	struct list_head *l;
	440
	441	hci_dev_lock_bh(hdev);
	442
ea4bd8ba	443	list_for_each(l, &hdev->blacklist) {
32c2ece5	444	struct bdaddr_list *b;
32c2ece5 JH	445
	446	b = list_entry(l, struct bdaddr_list, list);
	447
d6b2eb2f	448	seq_printf(f, "%s\n", batostr(&b->bdaddr));
32c2ece5 JH	449	}
	450
	451	hci_dev_unlock_bh(hdev);
	452
	453	return 0;
	454	}
	455
	456	static int blacklist_open(struct inode inode, struct file file)
	457	{
	458	return single_open(file, blacklist_show, inode->i_private);
	459	}
	460
	461	static const struct file_operations blacklist_fops = {
	462	.open = blacklist_open,
	463	.read = seq_read,
	464	.llseek = seq_lseek,
	465	.release = single_release,
	466	};
930e1336 JH	467
	468	static void print_bt_uuid(struct seq_file f, u8 uuid)
	469	{
	470	u32 data0, data4;
	471	u16 data1, data2, data3, data5;
	472
	473	memcpy(&data0, &uuid[0], 4);
	474	memcpy(&data1, &uuid[4], 2);
	475	memcpy(&data2, &uuid[6], 2);
	476	memcpy(&data3, &uuid[8], 2);
	477	memcpy(&data4, &uuid[10], 4);
	478	memcpy(&data5, &uuid[14], 2);
	479
	480	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
	481	ntohl(data0), ntohs(data1), ntohs(data2),
	482	ntohs(data3), ntohl(data4), ntohs(data5));
	483	}
	484
	485	static int uuids_show(struct seq_file f, void p)
	486	{
	487	struct hci_dev *hdev = f->private;
	488	struct list_head *l;
	489
	490	hci_dev_lock_bh(hdev);
	491
	492	list_for_each(l, &hdev->uuids) {
	493	struct bt_uuid *uuid;
	494
	495	uuid = list_entry(l, struct bt_uuid, list);
	496
	497	print_bt_uuid(f, uuid->uuid);
	498	}
	499
	500	hci_dev_unlock_bh(hdev);
	501
	502	return 0;
	503	}
	504
	505	static int uuids_open(struct inode inode, struct file file)
	506	{
	507	return single_open(file, uuids_show, inode->i_private);
	508	}
	509
	510	static const struct file_operations uuids_fops = {
	511	.open = uuids_open,
	512	.read = seq_read,
	513	.llseek = seq_lseek,
	514	.release = single_release,
	515	};
	516
9f61656a JH	517	static int auto_accept_delay_set(void *data, u64 val)
	518	{
	519	struct hci_dev *hdev = data;
	520
	521	hci_dev_lock_bh(hdev);
	522
	523	hdev->auto_accept_delay = val;
	524
	525	hci_dev_unlock_bh(hdev);
	526
	527	return 0;
	528	}
	529
	530	static int auto_accept_delay_get(void data, u64 val)
	531	{
	532	struct hci_dev *hdev = data;
	533
	534	hci_dev_lock_bh(hdev);
	535
	536	*val = hdev->auto_accept_delay;
	537
	538	hci_dev_unlock_bh(hdev);
	539
	540	return 0;
	541	}
	542
	543	DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
	544	auto_accept_delay_set, "%llu\n");
	545
1da177e4 LT	546	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	547	{
a91f2e39	548	struct device *dev = &hdev->dev;
1da177e4 LT	549	int err;
1da177e4 LT	550
c13854ce	551	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	552
90855d7b MH	553	dev->type = &bt_host;
90855d7b MH	554	dev->class = bt_class;
e9c4bec6	555	dev->parent = hdev->parent;
a91f2e39	556
2e792995	557	dev_set_name(dev, "%s", hdev->name);
1da177e4	558
a91f2e39	559	dev_set_drvdata(dev, hdev);
27d35284	560
a91f2e39	561	err = device_register(dev);
1da177e4 LT	562	if (err < 0)
	563	return err;
	564
ca325f69 MH	565	if (!bt_debugfs)
	566	return 0;
	567
	568	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
	569	if (!hdev->debugfs)
	570	return 0;
	571
	572	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
	573	hdev, &inquiry_cache_fops);
	574
32c2ece5 JH	575	debugfs_create_file("blacklist", 0444, hdev->debugfs,
	576	hdev, &blacklist_fops);
	577
930e1336 JH	578	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
930e1336 JH	579
9f61656a JH	580	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
9f61656a JH	581	&auto_accept_delay_fops);
1da177e4 LT	582	return 0;
	583	}
	584
	585	void hci_unregister_sysfs(struct hci_dev *hdev)
	586	{
c13854ce	587	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	588
ca325f69 MH	589	debugfs_remove_recursive(hdev->debugfs);
ca325f69 MH	590
4d0eb004	591	device_del(&hdev->dev);
1da177e4 LT	592	}
	593
	594	int __init bt_sysfs_init(void)
	595	{
ca325f69 MH	596	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
ca325f69 MH	597
a91f2e39	598	bt_class = class_create(THIS_MODULE, "bluetooth");
f48fd9c8	599	if (IS_ERR(bt_class))
90855d7b	600	return PTR_ERR(bt_class);
27d35284 MH	601
27d35284 MH	602	return 0;
1da177e4 LT	603	}
1da177e4 LT	604
860e13b5	605	void bt_sysfs_cleanup(void)
1da177e4	606	{
a91f2e39	607	class_destroy(bt_class);
ca325f69 MH	608
ca325f69 MH	609	debugfs_remove_recursive(bt_debugfs);
1da177e4	610	}