[net-next-2.6.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 = NULL;
EXPORT_SYMBOL_GPL(bt_debugfs);

static struct workqueue_struct *bt_workq;

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);
	bdaddr_t bdaddr;
	baswap(&bdaddr, &conn->dst);
	return sprintf(buf, "%s\n", batostr(&bdaddr));
}

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(bt_workq, &conn->work_add);
}

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

	queue_work(bt_workq, &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_80211:
		return "802.11";
	default:
		return "UNKNOWN";
	}
}

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

static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	return sprintf(buf, "%s\n", host_typetostr(hdev->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[249];
	int i;

	for (i = 0; i < 248; i++)
		name[i] = hdev->dev_name[i];

	name[248] = '\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);
	bdaddr_t bdaddr;
	baswap(&bdaddr, &hdev->bdaddr);
	return sprintf(buf, "%s\n", batostr(&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);
	char *ptr;
	__u32 val;

	val = simple_strtoul(buf, &ptr, 10);
	if (ptr == buf)
		return -EINVAL;

	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);
	char *ptr;
	__u16 val;

	val = simple_strtoul(buf, &ptr, 10);
	if (ptr == buf)
		return -EINVAL;

	if (val < 0x0002 || val > 0xFFFE || val % 2)
		return -EINVAL;

	if (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);
	char *ptr;
	__u16 val;

	val = simple_strtoul(buf, &ptr, 10);
	if (ptr == buf)
		return -EINVAL;

	if (val < 0x0002 || val > 0xFFFE || val % 2)
		return -EINVAL;

	if (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;
		bdaddr_t bdaddr;
		baswap(&bdaddr, &data->bdaddr);
		seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
			   batostr(&bdaddr),
			   data->pscan_rep_mode, data->pscan_period_mode,
			   data->pscan_mode, data->dev_class[2],
			   data->dev_class[1], data->dev_class[0],
			   __le16_to_cpu(data->clock_offset),
			   data->rssi, data->ssp_mode, e->timestamp);
	}

	hci_dev_unlock_bh(hdev);

	return 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,
};

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);

	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_workq = create_singlethread_workqueue("bluetooth");
	if (!bt_workq)
		return -ENOMEM;

	bt_debugfs = debugfs_create_dir("bluetooth", NULL);

	bt_class = class_create(THIS_MODULE, "bluetooth");
	if (IS_ERR(bt_class)) {
		destroy_workqueue(bt_workq);
		return PTR_ERR(bt_class);
	}

	return 0;
}

void bt_sysfs_cleanup(void)
{
	class_destroy(bt_class);

	debugfs_remove_recursive(bt_debugfs);

	destroy_workqueue(bt_workq);
}
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
ca325f69 MH	14	struct dentry *bt_debugfs = NULL;
	15	EXPORT_SYMBOL_GPL(bt_debugfs);
	16
a67e899c	17	static struct workqueue_struct *bt_workq;
1da177e4	18
90855d7b MH	19	static inline char *link_typetostr(int type)
	20	{
	21	switch (type) {
	22	case ACL_LINK:
	23	return "ACL";
	24	case SCO_LINK:
	25	return "SCO";
	26	case ESCO_LINK:
	27	return "eSCO";
	28	default:
	29	return "UNKNOWN";
	30	}
	31	}
	32
	33	static ssize_t show_link_type(struct device dev, struct device_attribute attr, char *buf)
	34	{
	35	struct hci_conn *conn = dev_get_drvdata(dev);
	36	return sprintf(buf, "%s\n", link_typetostr(conn->type));
	37	}
	38
	39	static ssize_t show_link_address(struct device dev, struct device_attribute attr, char *buf)
	40	{
	41	struct hci_conn *conn = dev_get_drvdata(dev);
	42	bdaddr_t bdaddr;
	43	baswap(&bdaddr, &conn->dst);
	44	return sprintf(buf, "%s\n", batostr(&bdaddr));
	45	}
	46
	47	static ssize_t show_link_features(struct device dev, struct device_attribute attr, char *buf)
	48	{
	49	struct hci_conn *conn = dev_get_drvdata(dev);
	50
	51	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	52	conn->features[0], conn->features[1],
	53	conn->features[2], conn->features[3],
	54	conn->features[4], conn->features[5],
	55	conn->features[6], conn->features[7]);
	56	}
	57
	58	#define LINK_ATTR(_name,_mode,_show,_store) \
	59	struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store)
	60
	61	static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
	62	static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
	63	static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
	64
	65	static struct attribute *bt_link_attrs[] = {
	66	&link_attr_type.attr,
	67	&link_attr_address.attr,
	68	&link_attr_features.attr,
	69	NULL
	70	};
	71
	72	static struct attribute_group bt_link_group = {
	73	.attrs = bt_link_attrs,
	74	};
	75
a4dbd674	76	static const struct attribute_group *bt_link_groups[] = {
90855d7b MH	77	&bt_link_group,
	78	NULL
	79	};
	80
	81	static void bt_link_release(struct device *dev)
	82	{
	83	void *data = dev_get_drvdata(dev);
	84	kfree(data);
	85	}
	86
	87	static struct device_type bt_link = {
	88	.name = "link",
	89	.groups = bt_link_groups,
	90	.release = bt_link_release,
	91	};
	92
	93	static void add_conn(struct work_struct *work)
	94	{
f3784d83	95	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
457ca7bb	96	struct hci_dev *hdev = conn->hdev;
90855d7b	97
457ca7bb MH	98	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
457ca7bb MH	99
f74c77cb DY	100	dev_set_drvdata(&conn->dev, conn);
f74c77cb DY	101
90855d7b MH	102	if (device_add(&conn->dev) < 0) {
	103	BT_ERR("Failed to register connection device");
	104	return;
	105	}
384943ec MH	106
384943ec MH	107	hci_dev_hold(hdev);
90855d7b MH	108	}
90855d7b MH	109
90855d7b MH	110	/*
	111	* The rfcomm tty device will possibly retain even when conn
	112	* is down, and sysfs doesn't support move zombie device,
	113	* so we should move the device before conn device is destroyed.
	114	*/
	115	static int __match_tty(struct device dev, void data)
	116	{
fb28ad35	117	return !strncmp(dev_name(dev), "rfcomm", 6);
90855d7b MH	118	}
	119
	120	static void del_conn(struct work_struct *work)
	121	{
f3784d83	122	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
90855d7b MH	123	struct hci_dev *hdev = conn->hdev;
90855d7b MH	124
a67e899c MH	125	if (!device_is_registered(&conn->dev))
a67e899c MH	126	return;
f3784d83	127
90855d7b MH	128	while (1) {
	129	struct device *dev;
	130
	131	dev = device_find_child(&conn->dev, NULL, __match_tty);
	132	if (!dev)
	133	break;
ffa6a705	134	device_move(dev, NULL, DPM_ORDER_DEV_LAST);
90855d7b MH	135	put_device(dev);
	136	}
	137
	138	device_del(&conn->dev);
	139	put_device(&conn->dev);
384943ec	140
90855d7b MH	141	hci_dev_put(hdev);
	142	}
	143
a67e899c	144	void hci_conn_init_sysfs(struct hci_conn *conn)
90855d7b	145	{
a67e899c MH	146	struct hci_dev *hdev = conn->hdev;
a67e899c MH	147
90855d7b MH	148	BT_DBG("conn %p", conn);
90855d7b MH	149
a67e899c MH	150	conn->dev.type = &bt_link;
	151	conn->dev.class = bt_class;
	152	conn->dev.parent = &hdev->dev;
	153
a67e899c MH	154	device_initialize(&conn->dev);
	155
	156	INIT_WORK(&conn->work_add, add_conn);
f3784d83	157	INIT_WORK(&conn->work_del, del_conn);
a67e899c MH	158	}
	159
	160	void hci_conn_add_sysfs(struct hci_conn *conn)
	161	{
a67e899c MH	162	BT_DBG("conn %p", conn);
a67e899c MH	163
a67e899c MH	164	queue_work(bt_workq, &conn->work_add);
	165	}
	166
	167	void hci_conn_del_sysfs(struct hci_conn *conn)
	168	{
	169	BT_DBG("conn %p", conn);
90855d7b	170
a67e899c	171	queue_work(bt_workq, &conn->work_del);
90855d7b MH	172	}
90855d7b MH	173
c13854ce	174	static inline char *host_bustostr(int bus)
1da177e4	175	{
c13854ce	176	switch (bus) {
0ac53939	177	case HCI_VIRTUAL:
4d0eb004 MH	178	return "VIRTUAL";
	179	case HCI_USB:
	180	return "USB";
	181	case HCI_PCCARD:
	182	return "PCCARD";
	183	case HCI_UART:
	184	return "UART";
	185	case HCI_RS232:
	186	return "RS232";
	187	case HCI_PCI:
	188	return "PCI";
0ac53939 MH	189	case HCI_SDIO:
0ac53939 MH	190	return "SDIO";
4d0eb004 MH	191	default:
	192	return "UNKNOWN";
	193	}
1da177e4 LT	194	}
1da177e4 LT	195
943da25d MH	196	static inline char *host_typetostr(int type)
	197	{
	198	switch (type) {
	199	case HCI_BREDR:
	200	return "BR/EDR";
	201	case HCI_80211:
	202	return "802.11";
	203	default:
	204	return "UNKNOWN";
	205	}
	206	}
	207
c13854ce	208	static ssize_t show_bus(struct device dev, struct device_attribute attr, char *buf)
1da177e4	209	{
a91f2e39	210	struct hci_dev *hdev = dev_get_drvdata(dev);
c13854ce	211	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
1da177e4 LT	212	}
1da177e4 LT	213
943da25d MH	214	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
	215	{
	216	struct hci_dev *hdev = dev_get_drvdata(dev);
	217	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
	218	}
	219
a9de9248 MH	220	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	221	{
	222	struct hci_dev *hdev = dev_get_drvdata(dev);
	223	char name[249];
	224	int i;
	225
	226	for (i = 0; i < 248; i++)
	227	name[i] = hdev->dev_name[i];
	228
	229	name[248] = '\0';
	230	return sprintf(buf, "%s\n", name);
	231	}
	232
	233	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	234	{
	235	struct hci_dev *hdev = dev_get_drvdata(dev);
	236	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	237	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	238	}
	239
a91f2e39	240	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	241	{
a91f2e39	242	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	243	bdaddr_t bdaddr;
	244	baswap(&bdaddr, &hdev->bdaddr);
	245	return sprintf(buf, "%s\n", batostr(&bdaddr));
	246	}
	247
a9de9248 MH	248	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	249	{
	250	struct hci_dev *hdev = dev_get_drvdata(dev);
	251
	252	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	253	hdev->features[0], hdev->features[1],
	254	hdev->features[2], hdev->features[3],
	255	hdev->features[4], hdev->features[5],
	256	hdev->features[6], hdev->features[7]);
	257	}
	258
1143e5a6 MH	259	static ssize_t show_manufacturer(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->manufacturer);
	263	}
	264
	265	static ssize_t show_hci_version(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_ver);
	269	}
	270
	271	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	272	{
	273	struct hci_dev *hdev = dev_get_drvdata(dev);
	274	return sprintf(buf, "%d\n", hdev->hci_rev);
	275	}
	276
a91f2e39	277	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	278	{
a91f2e39	279	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	280	return sprintf(buf, "%d\n", hdev->idle_timeout);
	281	}
	282
a91f2e39	283	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	284	{
a91f2e39	285	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	286	char *ptr;
	287	__u32 val;
	288
	289	val = simple_strtoul(buf, &ptr, 10);
	290	if (ptr == buf)
	291	return -EINVAL;
	292
	293	if (val != 0 && (val < 500 \|\| val > 3600000))
	294	return -EINVAL;
	295
	296	hdev->idle_timeout = val;
	297
	298	return count;
	299	}
	300
a91f2e39	301	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	302	{
a91f2e39	303	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	304	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	305	}
	306
a91f2e39	307	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	308	{
a91f2e39	309	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	310	char *ptr;
	311	__u16 val;
	312
	313	val = simple_strtoul(buf, &ptr, 10);
	314	if (ptr == buf)
	315	return -EINVAL;
	316
	317	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	318	return -EINVAL;
	319
	320	if (val < hdev->sniff_min_interval)
	321	return -EINVAL;
	322
	323	hdev->sniff_max_interval = val;
	324
	325	return count;
	326	}
	327
a91f2e39	328	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	329	{
a91f2e39	330	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	331	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	332	}
	333
a91f2e39	334	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	335	{
a91f2e39	336	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	337	char *ptr;
	338	__u16 val;
	339
	340	val = simple_strtoul(buf, &ptr, 10);
	341	if (ptr == buf)
	342	return -EINVAL;
	343
	344	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	345	return -EINVAL;
	346
	347	if (val > hdev->sniff_max_interval)
	348	return -EINVAL;
	349
	350	hdev->sniff_min_interval = val;
	351
	352	return count;
	353	}
	354
c13854ce	355	static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
943da25d	356	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	357	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	358	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	359	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	360	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	361	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	362	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	363	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
1da177e4	364
a91f2e39	365	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	366	show_idle_timeout, store_idle_timeout);
a91f2e39	367	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	368	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	369	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	370	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	371
90855d7b	372	static struct attribute *bt_host_attrs[] = {
c13854ce	373	&dev_attr_bus.attr,
943da25d	374	&dev_attr_type.attr,
90855d7b MH	375	&dev_attr_name.attr,
	376	&dev_attr_class.attr,
	377	&dev_attr_address.attr,
	378	&dev_attr_features.attr,
	379	&dev_attr_manufacturer.attr,
	380	&dev_attr_hci_version.attr,
	381	&dev_attr_hci_revision.attr,
90855d7b MH	382	&dev_attr_idle_timeout.attr,
	383	&dev_attr_sniff_max_interval.attr,
	384	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	385	NULL
	386	};
	387
90855d7b MH	388	static struct attribute_group bt_host_group = {
90855d7b MH	389	.attrs = bt_host_attrs,
b219e3ac MH	390	};
b219e3ac MH	391
a4dbd674	392	static const struct attribute_group *bt_host_groups[] = {
90855d7b MH	393	&bt_host_group,
90855d7b MH	394	NULL
27d35284 MH	395	};
27d35284 MH	396
90855d7b	397	static void bt_host_release(struct device *dev)
a91f2e39	398	{
b219e3ac MH	399	void *data = dev_get_drvdata(dev);
	400	kfree(data);
	401	}
	402
90855d7b MH	403	static struct device_type bt_host = {
	404	.name = "host",
	405	.groups = bt_host_groups,
	406	.release = bt_host_release,
	407	};
a91f2e39	408
d4612cb8	409	static int inquiry_cache_show(struct seq_file f, void p)
ca325f69	410	{
d4612cb8	411	struct hci_dev *hdev = f->private;
ca325f69 MH	412	struct inquiry_cache *cache = &hdev->inq_cache;
ca325f69 MH	413	struct inquiry_entry *e;
ca325f69 MH	414
	415	hci_dev_lock_bh(hdev);
	416
	417	for (e = cache->list; e; e = e->next) {
	418	struct inquiry_data *data = &e->data;
	419	bdaddr_t bdaddr;
	420	baswap(&bdaddr, &data->bdaddr);
d4612cb8 MH	421	seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
	422	batostr(&bdaddr),
	423	data->pscan_rep_mode, data->pscan_period_mode,
	424	data->pscan_mode, data->dev_class[2],
	425	data->dev_class[1], data->dev_class[0],
	426	__le16_to_cpu(data->clock_offset),
	427	data->rssi, data->ssp_mode, e->timestamp);
ca325f69 MH	428	}
	429
	430	hci_dev_unlock_bh(hdev);
	431
d4612cb8 MH	432	return 0;
	433	}
	434
	435	static int inquiry_cache_open(struct inode inode, struct file file)
	436	{
	437	return single_open(file, inquiry_cache_show, inode->i_private);
ca325f69 MH	438	}
	439
	440	static const struct file_operations inquiry_cache_fops = {
d4612cb8 MH	441	.open = inquiry_cache_open,
	442	.read = seq_read,
	443	.llseek = seq_lseek,
	444	.release = single_release,
ca325f69 MH	445	};
ca325f69 MH	446
1da177e4 LT	447	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	448	{
a91f2e39	449	struct device *dev = &hdev->dev;
1da177e4 LT	450	int err;
1da177e4 LT	451
c13854ce	452	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	453
90855d7b MH	454	dev->type = &bt_host;
90855d7b MH	455	dev->class = bt_class;
e9c4bec6	456	dev->parent = hdev->parent;
a91f2e39	457
2e792995	458	dev_set_name(dev, "%s", hdev->name);
1da177e4	459
a91f2e39	460	dev_set_drvdata(dev, hdev);
27d35284	461
a91f2e39	462	err = device_register(dev);
1da177e4 LT	463	if (err < 0)
	464	return err;
	465
ca325f69 MH	466	if (!bt_debugfs)
	467	return 0;
	468
	469	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
	470	if (!hdev->debugfs)
	471	return 0;
	472
	473	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
	474	hdev, &inquiry_cache_fops);
	475
1da177e4 LT	476	return 0;
	477	}
	478
	479	void hci_unregister_sysfs(struct hci_dev *hdev)
	480	{
c13854ce	481	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
1da177e4	482
ca325f69 MH	483	debugfs_remove_recursive(hdev->debugfs);
ca325f69 MH	484
4d0eb004	485	device_del(&hdev->dev);
1da177e4 LT	486	}
	487
	488	int __init bt_sysfs_init(void)
	489	{
a67e899c MH	490	bt_workq = create_singlethread_workqueue("bluetooth");
a67e899c MH	491	if (!bt_workq)
90855d7b	492	return -ENOMEM;
27d35284	493
ca325f69 MH	494	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
ca325f69 MH	495
a91f2e39 MH	496	bt_class = class_create(THIS_MODULE, "bluetooth");
a91f2e39 MH	497	if (IS_ERR(bt_class)) {
a67e899c	498	destroy_workqueue(bt_workq);
90855d7b	499	return PTR_ERR(bt_class);
27d35284 MH	500	}
	501
	502	return 0;
1da177e4 LT	503	}
1da177e4 LT	504
860e13b5	505	void bt_sysfs_cleanup(void)
1da177e4	506	{
a91f2e39	507	class_destroy(bt_class);
ca325f69 MH	508
	509	debugfs_remove_recursive(bt_debugfs);
	510
	511	destroy_workqueue(bt_workq);
1da177e4	512	}