[GitHub/mt8127/android_kernel_alcatel_ttab.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 <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";
	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>
1da177e4 LT	8
	9	#include <net/bluetooth/bluetooth.h>
	10	#include <net/bluetooth/hci_core.h>
	11
aef7d97c	12	static struct class *bt_class;
90855d7b	13
602f9887	14	struct dentry *bt_debugfs;
ca325f69 MH	15	EXPORT_SYMBOL_GPL(bt_debugfs);
ca325f69 MH	16
90855d7b MH	17	static inline char *link_typetostr(int type)
	18	{
	19	switch (type) {
	20	case ACL_LINK:
	21	return "ACL";
	22	case SCO_LINK:
	23	return "SCO";
	24	case ESCO_LINK:
	25	return "eSCO";
	26	default:
	27	return "UNKNOWN";
	28	}
	29	}
	30
	31	static ssize_t show_link_type(struct device dev, struct device_attribute attr, char *buf)
	32	{
	33	struct hci_conn *conn = dev_get_drvdata(dev);
	34	return sprintf(buf, "%s\n", link_typetostr(conn->type));
	35	}
	36
	37	static ssize_t show_link_address(struct device dev, struct device_attribute attr, char *buf)
	38	{
	39	struct hci_conn *conn = dev_get_drvdata(dev);
d6b2eb2f	40	return sprintf(buf, "%s\n", batostr(&conn->dst));
90855d7b MH	41	}
	42
	43	static ssize_t show_link_features(struct device dev, struct device_attribute attr, char *buf)
	44	{
	45	struct hci_conn *conn = dev_get_drvdata(dev);
	46
	47	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	48	conn->features[0], conn->features[1],
	49	conn->features[2], conn->features[3],
	50	conn->features[4], conn->features[5],
	51	conn->features[6], conn->features[7]);
	52	}
	53
602f9887 GP	54	#define LINK_ATTR(_name, _mode, _show, _store) \
602f9887 GP	55	struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store)
90855d7b MH	56
	57	static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
	58	static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
	59	static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
	60
	61	static struct attribute *bt_link_attrs[] = {
	62	&link_attr_type.attr,
	63	&link_attr_address.attr,
	64	&link_attr_features.attr,
	65	NULL
	66	};
	67
	68	static struct attribute_group bt_link_group = {
	69	.attrs = bt_link_attrs,
	70	};
	71
a4dbd674	72	static const struct attribute_group *bt_link_groups[] = {
90855d7b MH	73	&bt_link_group,
	74	NULL
	75	};
	76
	77	static void bt_link_release(struct device *dev)
	78	{
	79	void *data = dev_get_drvdata(dev);
	80	kfree(data);
	81	}
	82
	83	static struct device_type bt_link = {
	84	.name = "link",
	85	.groups = bt_link_groups,
	86	.release = bt_link_release,
	87	};
	88
	89	static void add_conn(struct work_struct *work)
	90	{
f3784d83	91	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
457ca7bb	92	struct hci_dev *hdev = conn->hdev;
90855d7b	93
457ca7bb MH	94	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
457ca7bb MH	95
f74c77cb DY	96	dev_set_drvdata(&conn->dev, conn);
f74c77cb DY	97
90855d7b MH	98	if (device_add(&conn->dev) < 0) {
	99	BT_ERR("Failed to register connection device");
	100	return;
	101	}
384943ec MH	102
384943ec MH	103	hci_dev_hold(hdev);
90855d7b MH	104	}
90855d7b MH	105
90855d7b MH	106	/*
	107	* The rfcomm tty device will possibly retain even when conn
	108	* is down, and sysfs doesn't support move zombie device,
	109	* so we should move the device before conn device is destroyed.
	110	*/
	111	static int __match_tty(struct device dev, void data)
	112	{
fb28ad35	113	return !strncmp(dev_name(dev), "rfcomm", 6);
90855d7b MH	114	}
	115
	116	static void del_conn(struct work_struct *work)
	117	{
f3784d83	118	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
90855d7b MH	119	struct hci_dev *hdev = conn->hdev;
90855d7b MH	120
a67e899c MH	121	if (!device_is_registered(&conn->dev))
a67e899c MH	122	return;
f3784d83	123
90855d7b MH	124	while (1) {
	125	struct device *dev;
	126
	127	dev = device_find_child(&conn->dev, NULL, __match_tty);
	128	if (!dev)
	129	break;
ffa6a705	130	device_move(dev, NULL, DPM_ORDER_DEV_LAST);
90855d7b MH	131	put_device(dev);
	132	}
	133
	134	device_del(&conn->dev);
	135	put_device(&conn->dev);
384943ec	136
90855d7b MH	137	hci_dev_put(hdev);
	138	}
	139
a67e899c	140	void hci_conn_init_sysfs(struct hci_conn *conn)
90855d7b	141	{
a67e899c MH	142	struct hci_dev *hdev = conn->hdev;
a67e899c MH	143
90855d7b MH	144	BT_DBG("conn %p", conn);
90855d7b MH	145
a67e899c MH	146	conn->dev.type = &bt_link;
	147	conn->dev.class = bt_class;
	148	conn->dev.parent = &hdev->dev;
	149
a67e899c MH	150	device_initialize(&conn->dev);
	151
	152	INIT_WORK(&conn->work_add, add_conn);
f3784d83	153	INIT_WORK(&conn->work_del, del_conn);
a67e899c MH	154	}
	155
	156	void hci_conn_add_sysfs(struct hci_conn *conn)
	157	{
a67e899c MH	158	BT_DBG("conn %p", conn);
a67e899c MH	159
f48fd9c8	160	queue_work(conn->hdev->workqueue, &conn->work_add);
a67e899c MH	161	}
	162
	163	void hci_conn_del_sysfs(struct hci_conn *conn)
	164	{
	165	BT_DBG("conn %p", conn);
90855d7b	166
f48fd9c8	167	queue_work(conn->hdev->workqueue, &conn->work_del);
90855d7b MH	168	}
90855d7b MH	169
c13854ce	170	static inline char *host_bustostr(int bus)
1da177e4	171	{
c13854ce	172	switch (bus) {
0ac53939	173	case HCI_VIRTUAL:
4d0eb004 MH	174	return "VIRTUAL";
	175	case HCI_USB:
	176	return "USB";
	177	case HCI_PCCARD:
	178	return "PCCARD";
	179	case HCI_UART:
	180	return "UART";
	181	case HCI_RS232:
	182	return "RS232";
	183	case HCI_PCI:
	184	return "PCI";
0ac53939 MH	185	case HCI_SDIO:
0ac53939 MH	186	return "SDIO";
4d0eb004 MH	187	default:
	188	return "UNKNOWN";
	189	}
1da177e4 LT	190	}
1da177e4 LT	191
943da25d MH	192	static inline char *host_typetostr(int type)
	193	{
	194	switch (type) {
	195	case HCI_BREDR:
	196	return "BR/EDR";
8f1e1742 DV	197	case HCI_AMP:
8f1e1742 DV	198	return "AMP";
943da25d MH	199	default:
	200	return "UNKNOWN";
	201	}
	202	}
	203
c13854ce	204	static ssize_t show_bus(struct device dev, struct device_attribute attr, char *buf)
1da177e4	205	{
a91f2e39	206	struct hci_dev *hdev = dev_get_drvdata(dev);
c13854ce	207	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
1da177e4 LT	208	}
1da177e4 LT	209
943da25d MH	210	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
	211	{
	212	struct hci_dev *hdev = dev_get_drvdata(dev);
	213	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
	214	}
	215
a9de9248 MH	216	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	217	{
	218	struct hci_dev *hdev = dev_get_drvdata(dev);
1f6c6378	219	char name[HCI_MAX_NAME_LENGTH + 1];
a9de9248 MH	220	int i;
a9de9248 MH	221
1f6c6378	222	for (i = 0; i < HCI_MAX_NAME_LENGTH; i++)
a9de9248 MH	223	name[i] = hdev->dev_name[i];
a9de9248 MH	224
1f6c6378	225	name[HCI_MAX_NAME_LENGTH] = '\0';
a9de9248 MH	226	return sprintf(buf, "%s\n", name);
	227	}
	228
	229	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	230	{
	231	struct hci_dev *hdev = dev_get_drvdata(dev);
	232	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	233	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	234	}
	235
a91f2e39	236	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	237	{
a91f2e39	238	struct hci_dev *hdev = dev_get_drvdata(dev);
d6b2eb2f	239	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
1da177e4 LT	240	}
1da177e4 LT	241
a9de9248 MH	242	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	243	{
	244	struct hci_dev *hdev = dev_get_drvdata(dev);
	245
	246	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	247	hdev->features[0], hdev->features[1],
	248	hdev->features[2], hdev->features[3],
	249	hdev->features[4], hdev->features[5],
	250	hdev->features[6], hdev->features[7]);
	251	}
	252
1143e5a6 MH	253	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
	254	{
	255	struct hci_dev *hdev = dev_get_drvdata(dev);
	256	return sprintf(buf, "%d\n", hdev->manufacturer);
	257	}
	258
	259	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	260	{
	261	struct hci_dev *hdev = dev_get_drvdata(dev);
	262	return sprintf(buf, "%d\n", hdev->hci_ver);
	263	}
	264
	265	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	266	{
	267	struct hci_dev *hdev = dev_get_drvdata(dev);
	268	return sprintf(buf, "%d\n", hdev->hci_rev);
	269	}
	270
a91f2e39	271	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	272	{
a91f2e39	273	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	274	return sprintf(buf, "%d\n", hdev->idle_timeout);
	275	}
	276
a91f2e39	277	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	278	{
a91f2e39	279	struct hci_dev *hdev = dev_get_drvdata(dev);
db940cb0 AD	280	unsigned int val;
db940cb0 AD	281	int rv;
04837f64	282
db940cb0 AD	283	rv = kstrtouint(buf, 0, &val);
	284	if (rv < 0)
	285	return rv;
04837f64 MH	286
	287	if (val != 0 && (val < 500 \|\| val > 3600000))
	288	return -EINVAL;
	289
	290	hdev->idle_timeout = val;
	291
	292	return count;
	293	}
	294
a91f2e39	295	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	296	{
a91f2e39	297	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	298	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	299	}
	300
a91f2e39	301	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	302	{
a91f2e39	303	struct hci_dev *hdev = dev_get_drvdata(dev);
db940cb0 AD	304	u16 val;
db940cb0 AD	305	int rv;
04837f64	306
db940cb0 AD	307	rv = kstrtou16(buf, 0, &val);
	308	if (rv < 0)
	309	return rv;
04837f64	310
db940cb0	311	if (val == 0 \|\| val % 2 \|\| val < hdev->sniff_min_interval)
04837f64 MH	312	return -EINVAL;
	313
	314	hdev->sniff_max_interval = val;
	315
	316	return count;
	317	}
	318
a91f2e39	319	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	320	{
a91f2e39	321	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	322	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	323	}
	324
a91f2e39	325	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	326	{
a91f2e39	327	struct hci_dev *hdev = dev_get_drvdata(dev);
db940cb0 AD	328	u16 val;
db940cb0 AD	329	int rv;
04837f64	330
db940cb0 AD	331	rv = kstrtou16(buf, 0, &val);
	332	if (rv < 0)
	333	return rv;
04837f64	334
db940cb0	335	if (val == 0 \|\| val % 2 \|\| val > hdev->sniff_max_interval)
04837f64 MH	336	return -EINVAL;
	337
	338	hdev->sniff_min_interval = val;
	339
	340	return count;
	341	}
	342
c13854ce	343	static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
943da25d	344	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	345	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	346	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	347	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	348	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	349	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	350	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	351	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
1da177e4	352
a91f2e39	353	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	354	show_idle_timeout, store_idle_timeout);
a91f2e39	355	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	356	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	357	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	358	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	359
90855d7b	360	static struct attribute *bt_host_attrs[] = {
c13854ce	361	&dev_attr_bus.attr,
943da25d	362	&dev_attr_type.attr,
90855d7b MH	363	&dev_attr_name.attr,
	364	&dev_attr_class.attr,
	365	&dev_attr_address.attr,
	366	&dev_attr_features.attr,
	367	&dev_attr_manufacturer.attr,
	368	&dev_attr_hci_version.attr,
	369	&dev_attr_hci_revision.attr,
90855d7b MH	370	&dev_attr_idle_timeout.attr,
	371	&dev_attr_sniff_max_interval.attr,
	372	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	373	NULL
	374	};
	375
90855d7b MH	376	static struct attribute_group bt_host_group = {
90855d7b MH	377	.attrs = bt_host_attrs,
b219e3ac MH	378	};
b219e3ac MH	379
a4dbd674	380	static const struct attribute_group *bt_host_groups[] = {
90855d7b MH	381	&bt_host_group,
90855d7b MH	382	NULL
27d35284 MH	383	};
27d35284 MH	384
90855d7b	385	static void bt_host_release(struct device *dev)
a91f2e39	386	{
b219e3ac MH	387	void *data = dev_get_drvdata(dev);
	388	kfree(data);
	389	}
	390
90855d7b MH	391	static struct device_type bt_host = {
	392	.name = "host",
	393	.groups = bt_host_groups,
	394	.release = bt_host_release,
	395	};
a91f2e39	396
d4612cb8	397	static int inquiry_cache_show(struct seq_file f, void p)
ca325f69	398	{
d4612cb8	399	struct hci_dev *hdev = f->private;
ca325f69 MH	400	struct inquiry_cache *cache = &hdev->inq_cache;
ca325f69 MH	401	struct inquiry_entry *e;
ca325f69 MH	402
	403	hci_dev_lock_bh(hdev);
	404
	405	for (e = cache->list; e; e = e->next) {
	406	struct inquiry_data *data = &e->data;
d4612cb8	407	seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
d6b2eb2f	408	batostr(&data->bdaddr),
d4612cb8 MH	409	data->pscan_rep_mode, data->pscan_period_mode,
	410	data->pscan_mode, data->dev_class[2],
	411	data->dev_class[1], data->dev_class[0],
	412	__le16_to_cpu(data->clock_offset),
	413	data->rssi, data->ssp_mode, e->timestamp);
ca325f69 MH	414	}
	415
	416	hci_dev_unlock_bh(hdev);
	417
d4612cb8 MH	418	return 0;
	419	}
	420
	421	static int inquiry_cache_open(struct inode inode, struct file file)
	422	{
	423	return single_open(file, inquiry_cache_show, inode->i_private);
ca325f69 MH	424	}
	425
	426	static const struct file_operations inquiry_cache_fops = {
d4612cb8 MH	427	.open = inquiry_cache_open,
	428	.read = seq_read,
	429	.llseek = seq_lseek,
	430	.release = single_release,
ca325f69 MH	431	};
ca325f69 MH	432
32c2ece5 JH	433	static int blacklist_show(struct seq_file f, void p)
	434	{
	435	struct hci_dev *hdev = f->private;
32c2ece5 JH	436	struct list_head *l;
	437
	438	hci_dev_lock_bh(hdev);
	439
ea4bd8ba	440	list_for_each(l, &hdev->blacklist) {
32c2ece5	441	struct bdaddr_list *b;
32c2ece5 JH	442
	443	b = list_entry(l, struct bdaddr_list, list);
	444
d6b2eb2f	445	seq_printf(f, "%s\n", batostr(&b->bdaddr));
32c2ece5 JH	446	}
	447
	448	hci_dev_unlock_bh(hdev);
	449
	450	return 0;
	451	}
	452
	453	static int blacklist_open(struct inode inode, struct file file)
	454	{
	455	return single_open(file, blacklist_show, inode->i_private);
	456	}
	457
	458	static const struct file_operations blacklist_fops = {
	459	.open = blacklist_open,
	460	.read = seq_read,
	461	.llseek = seq_lseek,
	462	.release = single_release,
	463	};
930e1336 JH	464
	465	static void print_bt_uuid(struct seq_file f, u8 uuid)
	466	{
	467	u32 data0, data4;
	468	u16 data1, data2, data3, data5;
	469
	470	memcpy(&data0, &uuid[0], 4);
	471	memcpy(&data1, &uuid[4], 2);
	472	memcpy(&data2, &uuid[6], 2);
	473	memcpy(&data3, &uuid[8], 2);
	474	memcpy(&data4, &uuid[10], 4);
	475	memcpy(&data5, &uuid[14], 2);
	476
	477	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
	478	ntohl(data0), ntohs(data1), ntohs(data2),
	479	ntohs(data3), ntohl(data4), ntohs(data5));
	480	}
	481
	482	static int uuids_show(struct seq_file f, void p)
	483	{
	484	struct hci_dev *hdev = f->private;
	485	struct list_head *l;
	486
	487	hci_dev_lock_bh(hdev);
	488
	489	list_for_each(l, &hdev->uuids) {
	490	struct bt_uuid *uuid;
	491
	492	uuid = list_entry(l, struct bt_uuid, list);
	493
	494	print_bt_uuid(f, uuid->uuid);
	495	}
	496
	497	hci_dev_unlock_bh(hdev);
	498
	499	return 0;
	500	}
	501
	502	static int uuids_open(struct inode inode, struct file file)
	503	{
	504	return single_open(file, uuids_show, inode->i_private);
	505	}
	506
	507	static const struct file_operations uuids_fops = {
	508	.open = uuids_open,
	509	.read = seq_read,
	510	.llseek = seq_lseek,
	511	.release = single_release,
	512	};
	513
9f61656a JH	514	static int auto_accept_delay_set(void *data, u64 val)
	515	{
	516	struct hci_dev *hdev = data;
	517
	518	hci_dev_lock_bh(hdev);
	519
	520	hdev->auto_accept_delay = val;
	521
	522	hci_dev_unlock_bh(hdev);
	523
	524	return 0;
	525	}
	526
	527	static int auto_accept_delay_get(void data, u64 val)
	528	{
	529	struct hci_dev *hdev = data;
	530
	531	hci_dev_lock_bh(hdev);
	532
	533	*val = hdev->auto_accept_delay;
	534
	535	hci_dev_unlock_bh(hdev);
	536
	537	return 0;
	538	}
	539
	540	DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
	541	auto_accept_delay_set, "%llu\n");
	542
1da177e4 LT	543	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	544	{
a91f2e39	545	struct device *dev = &hdev->dev;
1da177e4 LT	546	int err;
1da177e4 LT	547
c13854ce	548	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	549
90855d7b MH	550	dev->type = &bt_host;
90855d7b MH	551	dev->class = bt_class;
e9c4bec6	552	dev->parent = hdev->parent;
a91f2e39	553
2e792995	554	dev_set_name(dev, "%s", hdev->name);
1da177e4	555
a91f2e39	556	dev_set_drvdata(dev, hdev);
27d35284	557
a91f2e39	558	err = device_register(dev);
1da177e4 LT	559	if (err < 0)
	560	return err;
	561
ca325f69 MH	562	if (!bt_debugfs)
	563	return 0;
	564
	565	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
	566	if (!hdev->debugfs)
	567	return 0;
	568
	569	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
	570	hdev, &inquiry_cache_fops);
	571
32c2ece5 JH	572	debugfs_create_file("blacklist", 0444, hdev->debugfs,
	573	hdev, &blacklist_fops);
	574
930e1336 JH	575	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
930e1336 JH	576
9f61656a JH	577	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
9f61656a JH	578	&auto_accept_delay_fops);
1da177e4 LT	579	return 0;
	580	}
	581
	582	void hci_unregister_sysfs(struct hci_dev *hdev)
	583	{
c13854ce	584	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	585
ca325f69 MH	586	debugfs_remove_recursive(hdev->debugfs);
ca325f69 MH	587
4d0eb004	588	device_del(&hdev->dev);
1da177e4 LT	589	}
	590
	591	int __init bt_sysfs_init(void)
	592	{
ca325f69 MH	593	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
ca325f69 MH	594
a91f2e39	595	bt_class = class_create(THIS_MODULE, "bluetooth");
f48fd9c8	596	if (IS_ERR(bt_class))
90855d7b	597	return PTR_ERR(bt_class);
27d35284 MH	598
27d35284 MH	599	return 0;
1da177e4 LT	600	}
1da177e4 LT	601
860e13b5	602	void bt_sysfs_cleanup(void)
1da177e4	603	{
a91f2e39	604	class_destroy(bt_class);
ca325f69 MH	605
ca325f69 MH	606	debugfs_remove_recursive(bt_debugfs);
1da177e4	607	}