[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 = 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,
};

/*
 * 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);

	dev_set_drvdata(&conn->dev, conn);

	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)
{
	void *data = to_hci_dev(dev);
	kfree(data);
	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)
{
	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 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->parent = hdev->parent;
	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	{
	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
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
f74c77cb DY	123	dev_set_drvdata(&conn->dev, conn);
f74c77cb DY	124
90855d7b MH	125	if (device_add(&conn->dev) < 0) {
	126	BT_ERR("Failed to register connection device");
	127	return;
	128	}
384943ec MH	129
384943ec MH	130	hci_dev_hold(hdev);
90855d7b MH	131	}
90855d7b MH	132
6d438e33	133	void hci_conn_del_sysfs(struct hci_conn *conn)
90855d7b	134	{
90855d7b MH	135	struct hci_dev *hdev = conn->hdev;
90855d7b MH	136
a67e899c MH	137	if (!device_is_registered(&conn->dev))
a67e899c MH	138	return;
f3784d83	139
90855d7b MH	140	while (1) {
	141	struct device *dev;
	142
	143	dev = device_find_child(&conn->dev, NULL, __match_tty);
	144	if (!dev)
	145	break;
ffa6a705	146	device_move(dev, NULL, DPM_ORDER_DEV_LAST);
90855d7b MH	147	put_device(dev);
	148	}
	149
	150	device_del(&conn->dev);
	151	put_device(&conn->dev);
384943ec	152
90855d7b MH	153	hci_dev_put(hdev);
	154	}
	155
c13854ce	156	static inline char *host_bustostr(int bus)
1da177e4	157	{
c13854ce	158	switch (bus) {
0ac53939	159	case HCI_VIRTUAL:
4d0eb004 MH	160	return "VIRTUAL";
	161	case HCI_USB:
	162	return "USB";
	163	case HCI_PCCARD:
	164	return "PCCARD";
	165	case HCI_UART:
	166	return "UART";
	167	case HCI_RS232:
	168	return "RS232";
	169	case HCI_PCI:
	170	return "PCI";
0ac53939 MH	171	case HCI_SDIO:
0ac53939 MH	172	return "SDIO";
4d0eb004 MH	173	default:
	174	return "UNKNOWN";
	175	}
1da177e4 LT	176	}
1da177e4 LT	177
943da25d MH	178	static inline char *host_typetostr(int type)
	179	{
	180	switch (type) {
	181	case HCI_BREDR:
	182	return "BR/EDR";
8f1e1742 DV	183	case HCI_AMP:
8f1e1742 DV	184	return "AMP";
943da25d MH	185	default:
	186	return "UNKNOWN";
	187	}
	188	}
	189
c13854ce	190	static ssize_t show_bus(struct device dev, struct device_attribute attr, char *buf)
1da177e4	191	{
aa2b86d7	192	struct hci_dev *hdev = to_hci_dev(dev);
c13854ce	193	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
1da177e4 LT	194	}
1da177e4 LT	195
943da25d MH	196	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
943da25d MH	197	{
aa2b86d7	198	struct hci_dev *hdev = to_hci_dev(dev);
943da25d MH	199	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
	200	}
	201
a9de9248 MH	202	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
a9de9248 MH	203	{
aa2b86d7	204	struct hci_dev *hdev = to_hci_dev(dev);
1f6c6378	205	char name[HCI_MAX_NAME_LENGTH + 1];
a9de9248 MH	206	int i;
a9de9248 MH	207
1f6c6378	208	for (i = 0; i < HCI_MAX_NAME_LENGTH; i++)
a9de9248 MH	209	name[i] = hdev->dev_name[i];
a9de9248 MH	210
1f6c6378	211	name[HCI_MAX_NAME_LENGTH] = '\0';
a9de9248 MH	212	return sprintf(buf, "%s\n", name);
	213	}
	214
	215	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	216	{
aa2b86d7	217	struct hci_dev *hdev = to_hci_dev(dev);
a9de9248 MH	218	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	219	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	220	}
	221
a91f2e39	222	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	223	{
aa2b86d7	224	struct hci_dev *hdev = to_hci_dev(dev);
d6b2eb2f	225	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
1da177e4 LT	226	}
1da177e4 LT	227
a9de9248 MH	228	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
a9de9248 MH	229	{
aa2b86d7	230	struct hci_dev *hdev = to_hci_dev(dev);
a9de9248 MH	231
	232	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	233	hdev->features[0], hdev->features[1],
	234	hdev->features[2], hdev->features[3],
	235	hdev->features[4], hdev->features[5],
	236	hdev->features[6], hdev->features[7]);
	237	}
	238
1143e5a6 MH	239	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
1143e5a6 MH	240	{
aa2b86d7	241	struct hci_dev *hdev = to_hci_dev(dev);
1143e5a6 MH	242	return sprintf(buf, "%d\n", hdev->manufacturer);
	243	}
	244
	245	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	246	{
aa2b86d7	247	struct hci_dev *hdev = to_hci_dev(dev);
1143e5a6 MH	248	return sprintf(buf, "%d\n", hdev->hci_ver);
	249	}
	250
	251	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	252	{
aa2b86d7	253	struct hci_dev *hdev = to_hci_dev(dev);
1143e5a6 MH	254	return sprintf(buf, "%d\n", hdev->hci_rev);
	255	}
	256
a91f2e39	257	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	258	{
aa2b86d7	259	struct hci_dev *hdev = to_hci_dev(dev);
04837f64 MH	260	return sprintf(buf, "%d\n", hdev->idle_timeout);
	261	}
	262
a91f2e39	263	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	264	{
aa2b86d7	265	struct hci_dev *hdev = to_hci_dev(dev);
db940cb0 AD	266	unsigned int val;
db940cb0 AD	267	int rv;
04837f64	268
db940cb0 AD	269	rv = kstrtouint(buf, 0, &val);
	270	if (rv < 0)
	271	return rv;
04837f64 MH	272
	273	if (val != 0 && (val < 500 \|\| val > 3600000))
	274	return -EINVAL;
	275
	276	hdev->idle_timeout = val;
	277
	278	return count;
	279	}
	280
a91f2e39	281	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	282	{
aa2b86d7	283	struct hci_dev *hdev = to_hci_dev(dev);
04837f64 MH	284	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	285	}
	286
a91f2e39	287	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	288	{
aa2b86d7	289	struct hci_dev *hdev = to_hci_dev(dev);
db940cb0 AD	290	u16 val;
db940cb0 AD	291	int rv;
04837f64	292
db940cb0 AD	293	rv = kstrtou16(buf, 0, &val);
	294	if (rv < 0)
	295	return rv;
04837f64	296
db940cb0	297	if (val == 0 \|\| val % 2 \|\| val < hdev->sniff_min_interval)
04837f64 MH	298	return -EINVAL;
	299
	300	hdev->sniff_max_interval = val;
	301
	302	return count;
	303	}
	304
a91f2e39	305	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	306	{
aa2b86d7	307	struct hci_dev *hdev = to_hci_dev(dev);
04837f64 MH	308	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	309	}
	310
a91f2e39	311	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	312	{
aa2b86d7	313	struct hci_dev *hdev = to_hci_dev(dev);
db940cb0 AD	314	u16 val;
db940cb0 AD	315	int rv;
04837f64	316
db940cb0 AD	317	rv = kstrtou16(buf, 0, &val);
	318	if (rv < 0)
	319	return rv;
04837f64	320
db940cb0	321	if (val == 0 \|\| val % 2 \|\| val > hdev->sniff_max_interval)
04837f64 MH	322	return -EINVAL;
	323
	324	hdev->sniff_min_interval = val;
	325
	326	return count;
	327	}
	328
c13854ce	329	static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
943da25d	330	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	331	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	332	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	333	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	334	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	335	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	336	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	337	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
1da177e4	338
a91f2e39	339	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	340	show_idle_timeout, store_idle_timeout);
a91f2e39	341	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	342	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	343	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	344	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	345
90855d7b	346	static struct attribute *bt_host_attrs[] = {
c13854ce	347	&dev_attr_bus.attr,
943da25d	348	&dev_attr_type.attr,
90855d7b MH	349	&dev_attr_name.attr,
	350	&dev_attr_class.attr,
	351	&dev_attr_address.attr,
	352	&dev_attr_features.attr,
	353	&dev_attr_manufacturer.attr,
	354	&dev_attr_hci_version.attr,
	355	&dev_attr_hci_revision.attr,
90855d7b MH	356	&dev_attr_idle_timeout.attr,
	357	&dev_attr_sniff_max_interval.attr,
	358	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	359	NULL
	360	};
	361
90855d7b MH	362	static struct attribute_group bt_host_group = {
90855d7b MH	363	.attrs = bt_host_attrs,
b219e3ac MH	364	};
b219e3ac MH	365
a4dbd674	366	static const struct attribute_group *bt_host_groups[] = {
90855d7b MH	367	&bt_host_group,
90855d7b MH	368	NULL
27d35284 MH	369	};
27d35284 MH	370
90855d7b	371	static void bt_host_release(struct device *dev)
a91f2e39	372	{
aa2b86d7	373	void *data = to_hci_dev(dev);
b219e3ac	374	kfree(data);
46e06531	375	module_put(THIS_MODULE);
b219e3ac MH	376	}
b219e3ac MH	377
90855d7b MH	378	static struct device_type bt_host = {
	379	.name = "host",
	380	.groups = bt_host_groups,
	381	.release = bt_host_release,
	382	};
a91f2e39	383
d4612cb8	384	static int inquiry_cache_show(struct seq_file f, void p)
ca325f69	385	{
d4612cb8	386	struct hci_dev *hdev = f->private;
30883512	387	struct discovery_state *cache = &hdev->discovery;
ca325f69	388	struct inquiry_entry *e;
ca325f69	389
09fd0de5	390	hci_dev_lock(hdev);
ca325f69	391
561aafbc	392	list_for_each_entry(e, &cache->all, all) {
ca325f69	393	struct inquiry_data *data = &e->data;
d4612cb8	394	seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
d6b2eb2f	395	batostr(&data->bdaddr),
d4612cb8 MH	396	data->pscan_rep_mode, data->pscan_period_mode,
	397	data->pscan_mode, data->dev_class[2],
	398	data->dev_class[1], data->dev_class[0],
	399	__le16_to_cpu(data->clock_offset),
	400	data->rssi, data->ssp_mode, e->timestamp);
ca325f69 MH	401	}
ca325f69 MH	402
09fd0de5	403	hci_dev_unlock(hdev);
ca325f69	404
d4612cb8 MH	405	return 0;
	406	}
	407
	408	static int inquiry_cache_open(struct inode inode, struct file file)
	409	{
	410	return single_open(file, inquiry_cache_show, inode->i_private);
ca325f69 MH	411	}
	412
	413	static const struct file_operations inquiry_cache_fops = {
d4612cb8 MH	414	.open = inquiry_cache_open,
	415	.read = seq_read,
	416	.llseek = seq_lseek,
	417	.release = single_release,
ca325f69 MH	418	};
ca325f69 MH	419
32c2ece5 JH	420	static int blacklist_show(struct seq_file f, void p)
	421	{
	422	struct hci_dev *hdev = f->private;
8035ded4	423	struct bdaddr_list *b;
32c2ece5	424
09fd0de5	425	hci_dev_lock(hdev);
32c2ece5	426
8035ded4	427	list_for_each_entry(b, &hdev->blacklist, list)
d6b2eb2f	428	seq_printf(f, "%s\n", batostr(&b->bdaddr));
32c2ece5	429
09fd0de5	430	hci_dev_unlock(hdev);
32c2ece5 JH	431
	432	return 0;
	433	}
	434
	435	static int blacklist_open(struct inode inode, struct file file)
	436	{
	437	return single_open(file, blacklist_show, inode->i_private);
	438	}
	439
	440	static const struct file_operations blacklist_fops = {
	441	.open = blacklist_open,
	442	.read = seq_read,
	443	.llseek = seq_lseek,
	444	.release = single_release,
	445	};
930e1336 JH	446
	447	static void print_bt_uuid(struct seq_file f, u8 uuid)
	448	{
	449	u32 data0, data4;
	450	u16 data1, data2, data3, data5;
	451
	452	memcpy(&data0, &uuid[0], 4);
	453	memcpy(&data1, &uuid[4], 2);
	454	memcpy(&data2, &uuid[6], 2);
	455	memcpy(&data3, &uuid[8], 2);
	456	memcpy(&data4, &uuid[10], 4);
	457	memcpy(&data5, &uuid[14], 2);
	458
	459	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
	460	ntohl(data0), ntohs(data1), ntohs(data2),
	461	ntohs(data3), ntohl(data4), ntohs(data5));
	462	}
	463
	464	static int uuids_show(struct seq_file f, void p)
	465	{
	466	struct hci_dev *hdev = f->private;
8035ded4	467	struct bt_uuid *uuid;
930e1336	468
09fd0de5	469	hci_dev_lock(hdev);
930e1336	470
8035ded4	471	list_for_each_entry(uuid, &hdev->uuids, list)
930e1336	472	print_bt_uuid(f, uuid->uuid);
930e1336	473
09fd0de5	474	hci_dev_unlock(hdev);
930e1336 JH	475
	476	return 0;
	477	}
	478
	479	static int uuids_open(struct inode inode, struct file file)
	480	{
	481	return single_open(file, uuids_show, inode->i_private);
	482	}
	483
	484	static const struct file_operations uuids_fops = {
	485	.open = uuids_open,
	486	.read = seq_read,
	487	.llseek = seq_lseek,
	488	.release = single_release,
	489	};
	490
9f61656a JH	491	static int auto_accept_delay_set(void *data, u64 val)
	492	{
	493	struct hci_dev *hdev = data;
	494
09fd0de5	495	hci_dev_lock(hdev);
9f61656a JH	496
	497	hdev->auto_accept_delay = val;
	498
09fd0de5	499	hci_dev_unlock(hdev);
9f61656a JH	500
	501	return 0;
	502	}
	503
	504	static int auto_accept_delay_get(void data, u64 val)
	505	{
	506	struct hci_dev *hdev = data;
	507
09fd0de5	508	hci_dev_lock(hdev);
9f61656a JH	509
	510	*val = hdev->auto_accept_delay;
	511
09fd0de5	512	hci_dev_unlock(hdev);
9f61656a JH	513
	514	return 0;
	515	}
	516
	517	DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
	518	auto_accept_delay_set, "%llu\n");
	519
0ac7e700 DH	520	void hci_init_sysfs(struct hci_dev *hdev)
	521	{
	522	struct device *dev = &hdev->dev;
	523
	524	dev->type = &bt_host;
	525	dev->class = bt_class;
	526
46e06531	527	__module_get(THIS_MODULE);
0ac7e700 DH	528	device_initialize(dev);
	529	}
	530
ce242970	531	int hci_add_sysfs(struct hci_dev *hdev)
1da177e4	532	{
a91f2e39	533	struct device *dev = &hdev->dev;
1da177e4 LT	534	int err;
1da177e4 LT	535
c13854ce	536	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	537
e9c4bec6	538	dev->parent = hdev->parent;
2e792995	539	dev_set_name(dev, "%s", hdev->name);
1da177e4	540
0ac7e700	541	err = device_add(dev);
1da177e4 LT	542	if (err < 0)
	543	return err;
	544
ca325f69 MH	545	if (!bt_debugfs)
	546	return 0;
	547
	548	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
	549	if (!hdev->debugfs)
	550	return 0;
	551
	552	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
	553	hdev, &inquiry_cache_fops);
	554
32c2ece5 JH	555	debugfs_create_file("blacklist", 0444, hdev->debugfs,
	556	hdev, &blacklist_fops);
	557
930e1336 JH	558	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
930e1336 JH	559
9f61656a JH	560	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
9f61656a JH	561	&auto_accept_delay_fops);
1da177e4 LT	562	return 0;
	563	}
	564
ce242970	565	void hci_del_sysfs(struct hci_dev *hdev)
1da177e4	566	{
c13854ce	567	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	568
ca325f69 MH	569	debugfs_remove_recursive(hdev->debugfs);
ca325f69 MH	570
4d0eb004	571	device_del(&hdev->dev);
1da177e4 LT	572	}
	573
	574	int __init bt_sysfs_init(void)
	575	{
ca325f69 MH	576	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
ca325f69 MH	577
a91f2e39	578	bt_class = class_create(THIS_MODULE, "bluetooth");
f48fd9c8	579	if (IS_ERR(bt_class))
90855d7b	580	return PTR_ERR(bt_class);
27d35284 MH	581
27d35284 MH	582	return 0;
1da177e4 LT	583	}
1da177e4 LT	584
860e13b5	585	void bt_sysfs_cleanup(void)
1da177e4	586	{
a91f2e39	587	class_destroy(bt_class);
ca325f69 MH	588
ca325f69 MH	589	debugfs_remove_recursive(bt_debugfs);
1da177e4	590	}