[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 <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 = to_hci_conn(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 = to_hci_conn(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 = to_hci_conn(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)
{
	struct hci_conn *conn = to_hci_conn(dev);
	kfree(conn);
}

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

/*
 * 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);
}

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);
}

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

	BT_DBG("conn %p", conn);

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

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

	hci_dev_hold(hdev);
}

void hci_conn_del_sysfs(struct hci_conn *conn)
{
	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);
}

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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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 = to_hci_dev(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)
{
	struct hci_dev *hdev = to_hci_dev(dev);
	kfree(hdev);
	module_put(THIS_MODULE);
}

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 discovery_state *cache = &hdev->discovery;
	struct inquiry_entry *e;

	hci_dev_lock(hdev);

	list_for_each_entry(e, &cache->all, all) {
		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(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 bdaddr_list *b;

	hci_dev_lock(hdev);

	list_for_each_entry(b, &hdev->blacklist, list)
		seq_printf(f, "%s\n", batostr(&b->bdaddr));

	hci_dev_unlock(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)
{
	__be32 data0, data4;
	__be16 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 bt_uuid *uuid;

	hci_dev_lock(hdev);

	list_for_each_entry(uuid, &hdev->uuids, list)
		print_bt_uuid(f, uuid->uuid);

	hci_dev_unlock(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(hdev);

	hdev->auto_accept_delay = val;

	hci_dev_unlock(hdev);

	return 0;
}

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

	hci_dev_lock(hdev);

	*val = hdev->auto_accept_delay;

	hci_dev_unlock(hdev);

	return 0;
}

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

void hci_init_sysfs(struct hci_dev *hdev)
{
	struct device *dev = &hdev->dev;

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

	__module_get(THIS_MODULE);
	device_initialize(dev);
}

int hci_add_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_set_name(dev, "%s", hdev->name);

	err = device_add(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_del_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	{
3dc07322	36	struct hci_conn *conn = to_hci_conn(dev);
90855d7b MH	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	{
3dc07322	42	struct hci_conn *conn = to_hci_conn(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	{
3dc07322	48	struct hci_conn *conn = to_hci_conn(dev);
90855d7b MH	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	{
2dd10688 DH	82	struct hci_conn *conn = to_hci_conn(dev);
2dd10688 DH	83	kfree(conn);
90855d7b MH	84	}
	85
	86	static struct device_type bt_link = {
	87	.name = "link",
	88	.groups = bt_link_groups,
	89	.release = bt_link_release,
	90	};
	91
6d438e33 GP	92	/*
	93	* The rfcomm tty device will possibly retain even when conn
	94	* is down, and sysfs doesn't support move zombie device,
	95	* so we should move the device before conn device is destroyed.
	96	*/
	97	static int __match_tty(struct device dev, void data)
	98	{
	99	return !strncmp(dev_name(dev), "rfcomm", 6);
	100	}
	101
	102	void hci_conn_init_sysfs(struct hci_conn *conn)
	103	{
	104	struct hci_dev *hdev = conn->hdev;
	105
	106	BT_DBG("conn %p", conn);
	107
	108	conn->dev.type = &bt_link;
	109	conn->dev.class = bt_class;
	110	conn->dev.parent = &hdev->dev;
	111
	112	device_initialize(&conn->dev);
	113	}
	114
	115	void hci_conn_add_sysfs(struct hci_conn *conn)
90855d7b	116	{
457ca7bb	117	struct hci_dev *hdev = conn->hdev;
90855d7b	118
6d438e33 GP	119	BT_DBG("conn %p", conn);
6d438e33 GP	120
457ca7bb MH	121	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
457ca7bb MH	122
90855d7b MH	123	if (device_add(&conn->dev) < 0) {
	124	BT_ERR("Failed to register connection device");
	125	return;
	126	}
384943ec MH	127
384943ec MH	128	hci_dev_hold(hdev);
90855d7b MH	129	}
90855d7b MH	130
6d438e33	131	void hci_conn_del_sysfs(struct hci_conn *conn)
90855d7b	132	{
90855d7b MH	133	struct hci_dev *hdev = conn->hdev;
90855d7b MH	134
a67e899c MH	135	if (!device_is_registered(&conn->dev))
a67e899c MH	136	return;
f3784d83	137
90855d7b MH	138	while (1) {
	139	struct device *dev;
	140
	141	dev = device_find_child(&conn->dev, NULL, __match_tty);
	142	if (!dev)
	143	break;
ffa6a705	144	device_move(dev, NULL, DPM_ORDER_DEV_LAST);
90855d7b MH	145	put_device(dev);
	146	}
	147
	148	device_del(&conn->dev);
	149	put_device(&conn->dev);
384943ec	150
90855d7b MH	151	hci_dev_put(hdev);
	152	}
	153
c13854ce	154	static inline char *host_bustostr(int bus)
1da177e4	155	{
c13854ce	156	switch (bus) {
0ac53939	157	case HCI_VIRTUAL:
4d0eb004 MH	158	return "VIRTUAL";
	159	case HCI_USB:
	160	return "USB";
	161	case HCI_PCCARD:
	162	return "PCCARD";
	163	case HCI_UART:
	164	return "UART";
	165	case HCI_RS232:
	166	return "RS232";
	167	case HCI_PCI:
	168	return "PCI";
0ac53939 MH	169	case HCI_SDIO:
0ac53939 MH	170	return "SDIO";
4d0eb004 MH	171	default:
	172	return "UNKNOWN";
	173	}
1da177e4 LT	174	}
1da177e4 LT	175
943da25d MH	176	static inline char *host_typetostr(int type)
	177	{
	178	switch (type) {
	179	case HCI_BREDR:
	180	return "BR/EDR";
8f1e1742 DV	181	case HCI_AMP:
8f1e1742 DV	182	return "AMP";
943da25d MH	183	default:
	184	return "UNKNOWN";
	185	}
	186	}
	187
c13854ce	188	static ssize_t show_bus(struct device dev, struct device_attribute attr, char *buf)
1da177e4	189	{
aa2b86d7	190	struct hci_dev *hdev = to_hci_dev(dev);
c13854ce	191	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
1da177e4 LT	192	}
1da177e4 LT	193
943da25d MH	194	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
943da25d MH	195	{
aa2b86d7	196	struct hci_dev *hdev = to_hci_dev(dev);
943da25d MH	197	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
	198	}
	199
a9de9248 MH	200	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
a9de9248 MH	201	{
aa2b86d7	202	struct hci_dev *hdev = to_hci_dev(dev);
1f6c6378	203	char name[HCI_MAX_NAME_LENGTH + 1];
a9de9248 MH	204	int i;
a9de9248 MH	205
1f6c6378	206	for (i = 0; i < HCI_MAX_NAME_LENGTH; i++)
a9de9248 MH	207	name[i] = hdev->dev_name[i];
a9de9248 MH	208
1f6c6378	209	name[HCI_MAX_NAME_LENGTH] = '\0';
a9de9248 MH	210	return sprintf(buf, "%s\n", name);
	211	}
	212
	213	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	214	{
aa2b86d7	215	struct hci_dev *hdev = to_hci_dev(dev);
a9de9248 MH	216	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	217	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	218	}
	219
a91f2e39	220	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	221	{
aa2b86d7	222	struct hci_dev *hdev = to_hci_dev(dev);
d6b2eb2f	223	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
1da177e4 LT	224	}
1da177e4 LT	225
a9de9248 MH	226	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
a9de9248 MH	227	{
aa2b86d7	228	struct hci_dev *hdev = to_hci_dev(dev);
a9de9248 MH	229
	230	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	231	hdev->features[0], hdev->features[1],
	232	hdev->features[2], hdev->features[3],
	233	hdev->features[4], hdev->features[5],
	234	hdev->features[6], hdev->features[7]);
	235	}
	236
1143e5a6 MH	237	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
1143e5a6 MH	238	{
aa2b86d7	239	struct hci_dev *hdev = to_hci_dev(dev);
1143e5a6 MH	240	return sprintf(buf, "%d\n", hdev->manufacturer);
	241	}
	242
	243	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	244	{
aa2b86d7	245	struct hci_dev *hdev = to_hci_dev(dev);
1143e5a6 MH	246	return sprintf(buf, "%d\n", hdev->hci_ver);
	247	}
	248
	249	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	250	{
aa2b86d7	251	struct hci_dev *hdev = to_hci_dev(dev);
1143e5a6 MH	252	return sprintf(buf, "%d\n", hdev->hci_rev);
	253	}
	254
a91f2e39	255	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	256	{
aa2b86d7	257	struct hci_dev *hdev = to_hci_dev(dev);
04837f64 MH	258	return sprintf(buf, "%d\n", hdev->idle_timeout);
	259	}
	260
a91f2e39	261	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	262	{
aa2b86d7	263	struct hci_dev *hdev = to_hci_dev(dev);
db940cb0 AD	264	unsigned int val;
db940cb0 AD	265	int rv;
04837f64	266
db940cb0 AD	267	rv = kstrtouint(buf, 0, &val);
	268	if (rv < 0)
	269	return rv;
04837f64 MH	270
	271	if (val != 0 && (val < 500 \|\| val > 3600000))
	272	return -EINVAL;
	273
	274	hdev->idle_timeout = val;
	275
	276	return count;
	277	}
	278
a91f2e39	279	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	280	{
aa2b86d7	281	struct hci_dev *hdev = to_hci_dev(dev);
04837f64 MH	282	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	283	}
	284
a91f2e39	285	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	286	{
aa2b86d7	287	struct hci_dev *hdev = to_hci_dev(dev);
db940cb0 AD	288	u16 val;
db940cb0 AD	289	int rv;
04837f64	290
db940cb0 AD	291	rv = kstrtou16(buf, 0, &val);
	292	if (rv < 0)
	293	return rv;
04837f64	294
db940cb0	295	if (val == 0 \|\| val % 2 \|\| val < hdev->sniff_min_interval)
04837f64 MH	296	return -EINVAL;
	297
	298	hdev->sniff_max_interval = val;
	299
	300	return count;
	301	}
	302
a91f2e39	303	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	304	{
aa2b86d7	305	struct hci_dev *hdev = to_hci_dev(dev);
04837f64 MH	306	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	307	}
	308
a91f2e39	309	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	310	{
aa2b86d7	311	struct hci_dev *hdev = to_hci_dev(dev);
db940cb0 AD	312	u16 val;
db940cb0 AD	313	int rv;
04837f64	314
db940cb0 AD	315	rv = kstrtou16(buf, 0, &val);
	316	if (rv < 0)
	317	return rv;
04837f64	318
db940cb0	319	if (val == 0 \|\| val % 2 \|\| val > hdev->sniff_max_interval)
04837f64 MH	320	return -EINVAL;
	321
	322	hdev->sniff_min_interval = val;
	323
	324	return count;
	325	}
	326
c13854ce	327	static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
943da25d	328	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	329	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	330	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	331	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	332	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	333	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	334	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	335	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
1da177e4	336
a91f2e39	337	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	338	show_idle_timeout, store_idle_timeout);
a91f2e39	339	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	340	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	341	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	342	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	343
90855d7b	344	static struct attribute *bt_host_attrs[] = {
c13854ce	345	&dev_attr_bus.attr,
943da25d	346	&dev_attr_type.attr,
90855d7b MH	347	&dev_attr_name.attr,
	348	&dev_attr_class.attr,
	349	&dev_attr_address.attr,
	350	&dev_attr_features.attr,
	351	&dev_attr_manufacturer.attr,
	352	&dev_attr_hci_version.attr,
	353	&dev_attr_hci_revision.attr,
90855d7b MH	354	&dev_attr_idle_timeout.attr,
	355	&dev_attr_sniff_max_interval.attr,
	356	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	357	NULL
	358	};
	359
90855d7b MH	360	static struct attribute_group bt_host_group = {
90855d7b MH	361	.attrs = bt_host_attrs,
b219e3ac MH	362	};
b219e3ac MH	363
a4dbd674	364	static const struct attribute_group *bt_host_groups[] = {
90855d7b MH	365	&bt_host_group,
90855d7b MH	366	NULL
27d35284 MH	367	};
27d35284 MH	368
90855d7b	369	static void bt_host_release(struct device *dev)
a91f2e39	370	{
2dd10688 DH	371	struct hci_dev *hdev = to_hci_dev(dev);
2dd10688 DH	372	kfree(hdev);
46e06531	373	module_put(THIS_MODULE);
b219e3ac MH	374	}
b219e3ac MH	375
90855d7b MH	376	static struct device_type bt_host = {
	377	.name = "host",
	378	.groups = bt_host_groups,
	379	.release = bt_host_release,
	380	};
a91f2e39	381
d4612cb8	382	static int inquiry_cache_show(struct seq_file f, void p)
ca325f69	383	{
d4612cb8	384	struct hci_dev *hdev = f->private;
30883512	385	struct discovery_state *cache = &hdev->discovery;
ca325f69	386	struct inquiry_entry *e;
ca325f69	387
09fd0de5	388	hci_dev_lock(hdev);
ca325f69	389
561aafbc	390	list_for_each_entry(e, &cache->all, all) {
ca325f69	391	struct inquiry_data *data = &e->data;
d4612cb8	392	seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
d6b2eb2f	393	batostr(&data->bdaddr),
d4612cb8 MH	394	data->pscan_rep_mode, data->pscan_period_mode,
	395	data->pscan_mode, data->dev_class[2],
	396	data->dev_class[1], data->dev_class[0],
	397	__le16_to_cpu(data->clock_offset),
	398	data->rssi, data->ssp_mode, e->timestamp);
ca325f69 MH	399	}
ca325f69 MH	400
09fd0de5	401	hci_dev_unlock(hdev);
ca325f69	402
d4612cb8 MH	403	return 0;
	404	}
	405
	406	static int inquiry_cache_open(struct inode inode, struct file file)
	407	{
	408	return single_open(file, inquiry_cache_show, inode->i_private);
ca325f69 MH	409	}
	410
	411	static const struct file_operations inquiry_cache_fops = {
d4612cb8 MH	412	.open = inquiry_cache_open,
	413	.read = seq_read,
	414	.llseek = seq_lseek,
	415	.release = single_release,
ca325f69 MH	416	};
ca325f69 MH	417
32c2ece5 JH	418	static int blacklist_show(struct seq_file f, void p)
	419	{
	420	struct hci_dev *hdev = f->private;
8035ded4	421	struct bdaddr_list *b;
32c2ece5	422
09fd0de5	423	hci_dev_lock(hdev);
32c2ece5	424
8035ded4	425	list_for_each_entry(b, &hdev->blacklist, list)
d6b2eb2f	426	seq_printf(f, "%s\n", batostr(&b->bdaddr));
32c2ece5	427
09fd0de5	428	hci_dev_unlock(hdev);
32c2ece5 JH	429
	430	return 0;
	431	}
	432
	433	static int blacklist_open(struct inode inode, struct file file)
	434	{
	435	return single_open(file, blacklist_show, inode->i_private);
	436	}
	437
	438	static const struct file_operations blacklist_fops = {
	439	.open = blacklist_open,
	440	.read = seq_read,
	441	.llseek = seq_lseek,
	442	.release = single_release,
	443	};
930e1336 JH	444
	445	static void print_bt_uuid(struct seq_file f, u8 uuid)
	446	{
739f43e8 AE	447	__be32 data0, data4;
739f43e8 AE	448	__be16 data1, data2, data3, data5;
930e1336 JH	449
	450	memcpy(&data0, &uuid[0], 4);
	451	memcpy(&data1, &uuid[4], 2);
	452	memcpy(&data2, &uuid[6], 2);
	453	memcpy(&data3, &uuid[8], 2);
	454	memcpy(&data4, &uuid[10], 4);
	455	memcpy(&data5, &uuid[14], 2);
	456
	457	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
	458	ntohl(data0), ntohs(data1), ntohs(data2),
	459	ntohs(data3), ntohl(data4), ntohs(data5));
	460	}
	461
	462	static int uuids_show(struct seq_file f, void p)
	463	{
	464	struct hci_dev *hdev = f->private;
8035ded4	465	struct bt_uuid *uuid;
930e1336	466
09fd0de5	467	hci_dev_lock(hdev);
930e1336	468
8035ded4	469	list_for_each_entry(uuid, &hdev->uuids, list)
930e1336	470	print_bt_uuid(f, uuid->uuid);
930e1336	471
09fd0de5	472	hci_dev_unlock(hdev);
930e1336 JH	473
	474	return 0;
	475	}
	476
	477	static int uuids_open(struct inode inode, struct file file)
	478	{
	479	return single_open(file, uuids_show, inode->i_private);
	480	}
	481
	482	static const struct file_operations uuids_fops = {
	483	.open = uuids_open,
	484	.read = seq_read,
	485	.llseek = seq_lseek,
	486	.release = single_release,
	487	};
	488
9f61656a JH	489	static int auto_accept_delay_set(void *data, u64 val)
	490	{
	491	struct hci_dev *hdev = data;
	492
09fd0de5	493	hci_dev_lock(hdev);
9f61656a JH	494
	495	hdev->auto_accept_delay = val;
	496
09fd0de5	497	hci_dev_unlock(hdev);
9f61656a JH	498
	499	return 0;
	500	}
	501
	502	static int auto_accept_delay_get(void data, u64 val)
	503	{
	504	struct hci_dev *hdev = data;
	505
09fd0de5	506	hci_dev_lock(hdev);
9f61656a JH	507
	508	*val = hdev->auto_accept_delay;
	509
09fd0de5	510	hci_dev_unlock(hdev);
9f61656a JH	511
	512	return 0;
	513	}
	514
	515	DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
	516	auto_accept_delay_set, "%llu\n");
	517
0ac7e700 DH	518	void hci_init_sysfs(struct hci_dev *hdev)
	519	{
	520	struct device *dev = &hdev->dev;
	521
	522	dev->type = &bt_host;
	523	dev->class = bt_class;
	524
46e06531	525	__module_get(THIS_MODULE);
0ac7e700 DH	526	device_initialize(dev);
	527	}
	528
ce242970	529	int hci_add_sysfs(struct hci_dev *hdev)
1da177e4	530	{
a91f2e39	531	struct device *dev = &hdev->dev;
1da177e4 LT	532	int err;
1da177e4 LT	533
c13854ce	534	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	535
2e792995	536	dev_set_name(dev, "%s", hdev->name);
1da177e4	537
0ac7e700	538	err = device_add(dev);
1da177e4 LT	539	if (err < 0)
	540	return err;
	541
ca325f69 MH	542	if (!bt_debugfs)
	543	return 0;
	544
	545	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
	546	if (!hdev->debugfs)
	547	return 0;
	548
	549	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
	550	hdev, &inquiry_cache_fops);
	551
32c2ece5 JH	552	debugfs_create_file("blacklist", 0444, hdev->debugfs,
	553	hdev, &blacklist_fops);
	554
930e1336 JH	555	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
930e1336 JH	556
9f61656a JH	557	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
9f61656a JH	558	&auto_accept_delay_fops);
1da177e4 LT	559	return 0;
	560	}
	561
ce242970	562	void hci_del_sysfs(struct hci_dev *hdev)
1da177e4	563	{
c13854ce	564	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	565
ca325f69 MH	566	debugfs_remove_recursive(hdev->debugfs);
ca325f69 MH	567
4d0eb004	568	device_del(&hdev->dev);
1da177e4 LT	569	}
	570
	571	int __init bt_sysfs_init(void)
	572	{
ca325f69 MH	573	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
ca325f69 MH	574
a91f2e39	575	bt_class = class_create(THIS_MODULE, "bluetooth");
f48fd9c8	576	if (IS_ERR(bt_class))
90855d7b	577	return PTR_ERR(bt_class);
27d35284 MH	578
27d35284 MH	579	return 0;
1da177e4 LT	580	}
1da177e4 LT	581
860e13b5	582	void bt_sysfs_cleanup(void)
1da177e4	583	{
a91f2e39	584	class_destroy(bt_class);
ca325f69 MH	585
ca325f69 MH	586	debugfs_remove_recursive(bt_debugfs);
1da177e4	587	}